text: /* QLogic qed NIC Driver
   * Copyright (c) 2015-2017  QLogic Corporation
   *
   * This software is available to you under a choice of one of two
   * licenses.  You may choose to be licensed under the terms of the GNU
   * General Public License (GPL) Version 2, available from the file
   * COPYING in the main directory of this source tree, or the
   * OpenIB.org BSD license below:
   *
   *     Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *      - Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *
   *      - Redistributions in binary form must reproduce the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer in the documentation and /or other materials
   *        provided with the distribution.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  #include <linux/types.h>
  #include <asm/byteorder.h>
  #include <linux/bitops.h>
  #include <linux/dcbnl.h>
  #include <linux/errno.h>
  #include <linux/kernel.h>
  #include <linux/slab.h>
  #include <linux/string.h>
  #include "qed.h"
  #include "qed_cxt.h"
  #include "qed_dcbx.h"
  #include "qed_hsi.h"
  #include "qed_sp.h"
  #include "qed_sriov.h"
  #include "qed_rdma.h"
  #ifdef CONFIG_DCB
  #include <linux/qed/qed_eth_if.h>
  #endif
  
  #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  #define QED_ETH_TYPE_DEFAULT            (0)
  #define QED_ETH_TYPE_ROCE               (0x8915)
  #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  #define QED_ETH_TYPE_FCOE               (0x8906)
  #define QED_TCP_PORT_ISCSI              (0xCBC)
  
  #define QED_DCBX_INVALID_PRIORITY       0xFF
  
  /* Get Traffic Class from priority traffic class table, 4 bits represent
   * the traffic class corresponding to the priority.
   */
  #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  	((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  
  static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  	{DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
  	{DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
  	{DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
  	{DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
  	{DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
  };
  
  static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  {
  	return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  		  DCBX_APP_SF_ETHTYPE);
  }
  
  static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  {
  	u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  
  	/* Old MFW */
  	if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  		return qed_dcbx_app_ethtype(app_info_bitmap);
  
  	return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  }
  
  static bool qed_dcbx_app_port(u32 app_info_bitmap)
  {
  	return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  		  DCBX_APP_SF_PORT);
  }
  
  static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  {
  	u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  
  	/* Old MFW */
  	if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  		return qed_dcbx_app_port(app_info_bitmap);
  
  	return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
  }
  
  static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  {
  	bool ethtype;
  
  	if (ieee)
  		ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
  	else
  		ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
  
  	return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
  }
  
  static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  {
  	bool port;
  
  	if (ieee)
  		port = qed_dcbx_ieee_app_port(app_info_bitmap,
  					      DCBX_APP_SF_IEEE_TCP_PORT);
  	else
  		port = qed_dcbx_app_port(app_info_bitmap);
  
  	return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
  }
  
  static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  {
  	bool ethtype;
  
  	if (ieee)
  		ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
  	else
  		ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
  
  	return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
  }
  
  static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  {
  	bool ethtype;
  
  	if (ieee)
  		ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
  	else
  		ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
  
  	return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
  }
  
  static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  {
  	bool port;
  
  	if (ieee)
  		port = qed_dcbx_ieee_app_port(app_info_bitmap,
  					      DCBX_APP_SF_IEEE_UDP_PORT);
  	else
  		port = qed_dcbx_app_port(app_info_bitmap);
  
  	return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
  }
  
  static void
  qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
  {
  	enum dcbx_protocol_type id;
  	int i;
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
  		   p_data->dcbx_enabled);
  
  	for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
  		id = qed_dcbx_app_update[i].id;
  
  		DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  			   "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
  			   qed_dcbx_app_update[i].name, p_data->arr[id].update,
  			   p_data->arr[id].enable, p_data->arr[id].priority,
  			   p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
  	}
  }
  
  static void
  qed_dcbx_set_params(struct qed_dcbx_results *p_data,
  		    struct qed_hw_info *p_info,
  		    bool enable,
  		    u8 prio,
  		    u8 tc,
  		    enum dcbx_protocol_type type,
  		    enum qed_pci_personality personality)
  {
  	/* PF update ramrod data */
  	p_data->arr[type].enable = enable;
  	p_data->arr[type].priority = prio;
  	p_data->arr[type].tc = tc;
  	if (enable)
  		p_data->arr[type].update = UPDATE_DCB;
  	else
  		p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
  
  	/* QM reconf data */
  	if (p_info->personality == personality)
  		p_info->offload_tc = tc;
  }
  
  /* Update app protocol data and hw_info fields with the TLV info */
  static void
  qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
  			 struct qed_hwfn *p_hwfn,
  			 bool enable,
  			 u8 prio, u8 tc, enum dcbx_protocol_type type)
  {
  	struct qed_hw_info *p_info = &p_hwfn->hw_info;
  	enum qed_pci_personality personality;
  	enum dcbx_protocol_type id;
  	char *name;
  	int i;
  
  	for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
  		id = qed_dcbx_app_update[i].id;
  
  		if (type != id)
  			continue;
  
  		personality = qed_dcbx_app_update[i].personality;
  		name = qed_dcbx_app_update[i].name;
  
  		qed_dcbx_set_params(p_data, p_info, enable,
  				    prio, tc, type, personality);
  	}
  }
  
  static bool
  qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
  			       u32 app_prio_bitmap,
  			       u16 id, enum dcbx_protocol_type *type, bool ieee)
  {
  	if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
  		*type = DCBX_PROTOCOL_FCOE;
  	} else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
  		*type = DCBX_PROTOCOL_ROCE;
  	} else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
  		*type = DCBX_PROTOCOL_ISCSI;
  	} else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
  		*type = DCBX_PROTOCOL_ETH;
  	} else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
  		*type = DCBX_PROTOCOL_ROCE_V2;
  	} else {
  		*type = DCBX_MAX_PROTOCOL_TYPE;
  		DP_ERR(p_hwfn,
  		       "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
  		       id, app_prio_bitmap);
  		return false;
  	}
  
  	return true;
  }
  
  /* Parse app TLV's to update TC information in hw_info structure for
   * reconfiguring QM. Get protocol specific data for PF update ramrod command.
   */
  static int
  qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
  		     struct qed_dcbx_results *p_data,
  		     struct dcbx_app_priority_entry *p_tbl,
  		     u32 pri_tc_tbl, int count, u8 dcbx_version)
  {
  	enum dcbx_protocol_type type;
  	u8 tc, priority_map;
  	bool enable, ieee;
  	u16 protocol_id;
  	int priority;
  	int i;
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
  
  	ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
  	/* Parse APP TLV */
  	for (i = 0; i < count; i++) {
  		protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
  						DCBX_APP_PROTOCOL_ID);
  		priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
  						 DCBX_APP_PRI_MAP);
  		priority = ffs(priority_map) - 1;
  		if (priority < 0) {
  			DP_ERR(p_hwfn, "Invalid priority\n");
  			return -EINVAL;
  		}
  
  		tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
  		if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
  						   protocol_id, &type, ieee)) {
  			/* ETH always have the enable bit reset, as it gets
  			 * vlan information per packet. For other protocols,
  			 * should be set according to the dcbx_enabled
  			 * indication, but we only got here if there was an
  			 * app tlv for the protocol, so dcbx must be enabled.
  			 */
  			enable = !(type == DCBX_PROTOCOL_ETH);
  
  			qed_dcbx_update_app_info(p_data, p_hwfn, enable,
  						 priority, tc, type);
  		}
  	}
  
  	/* Update ramrod protocol data and hw_info fields
  	 * with default info when corresponding APP TLV's are not detected.
  	 * The enabled field has a different logic for ethernet as only for
  	 * ethernet dcb should disabled by default, as the information arrives
  	 * from the OS (unless an explicit app tlv was present).
  	 */
  	tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
  	priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
  	for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
  		if (p_data->arr[type].update)
  			continue;
  
  		enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
  		qed_dcbx_update_app_info(p_data, p_hwfn, enable,
  					 priority, tc, type);
  	}
  
  	return 0;
  }
  
  /* Parse app TLV's to update TC information in hw_info structure for
   * reconfiguring QM. Get protocol specific data for PF update ramrod command.
   */
  static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
  {
  	struct dcbx_app_priority_feature *p_app;
  	struct dcbx_app_priority_entry *p_tbl;
  	struct qed_dcbx_results data = { 0 };
  	struct dcbx_ets_feature *p_ets;
  	struct qed_hw_info *p_info;
  	u32 pri_tc_tbl, flags;
  	u8 dcbx_version;
  	int num_entries;
  	int rc = 0;
  
  	flags = p_hwfn->p_dcbx_info->operational.flags;
  	dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
  
  	p_app = &p_hwfn->p_dcbx_info->operational.features.app;
  	p_tbl = p_app->app_pri_tbl;
  
  	p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
  	pri_tc_tbl = p_ets->pri_tc_tbl[0];
  
  	p_info = &p_hwfn->hw_info;
  	num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
  
  	rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
  				  num_entries, dcbx_version);
  	if (rc)
  		return rc;
  
  	p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
  						  DCBX_ETS_MAX_TCS);
  	p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
  	data.pf_id = p_hwfn->rel_pf_id;
  	data.dcbx_enabled = !!dcbx_version;
  
  	qed_dcbx_dp_protocol(p_hwfn, &data);
  
  	memcpy(&p_hwfn->p_dcbx_info->results, &data,
  	       sizeof(struct qed_dcbx_results));
  
  	return 0;
  }
  
  static int
  qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
  		  struct qed_ptt *p_ptt,
  		  struct qed_dcbx_mib_meta_data *p_data,
  		  enum qed_mib_read_type type)
  {
  	u32 prefix_seq_num, suffix_seq_num;
  	int read_count = 0;
  	int rc = 0;
  
  	/* The data is considered to be valid only if both sequence numbers are
  	 * the same.
  	 */
  	do {
  		if (type == QED_DCBX_REMOTE_LLDP_MIB) {
  			qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
  					p_data->addr, p_data->size);
  			prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
  			suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
  		} else {
  			qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
  					p_data->addr, p_data->size);
  			prefix_seq_num = p_data->mib->prefix_seq_num;
  			suffix_seq_num = p_data->mib->suffix_seq_num;
  		}
  		read_count++;
  
  		DP_VERBOSE(p_hwfn,
  			   QED_MSG_DCB,
  			   "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
  			   type, read_count, prefix_seq_num, suffix_seq_num);
  	} while ((prefix_seq_num != suffix_seq_num) &&
  		 (read_count < QED_DCBX_MAX_MIB_READ_TRY));
  
  	if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
  		DP_ERR(p_hwfn,
  		       "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
  		       type, read_count, prefix_seq_num, suffix_seq_num);
  		rc = -EIO;
  	}
  
  	return rc;
  }
  
  static void
  qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
  			   struct qed_dcbx_app_prio *p_prio,
  			   struct qed_dcbx_results *p_results)
  {
  	u8 val;
  
  	p_prio->roce = QED_DCBX_INVALID_PRIORITY;
  	p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
  	p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
  	p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
  
  	if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
  	    p_results->arr[DCBX_PROTOCOL_ROCE].enable)
  		p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
  
  	if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
  	    p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
  		val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
  		p_prio->roce_v2 = val;
  	}
  
  	if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
  	    p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
  		p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
  
  	if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
  	    p_results->arr[DCBX_PROTOCOL_FCOE].enable)
  		p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
  
  	if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
  	    p_results->arr[DCBX_PROTOCOL_ETH].enable)
  		p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  		   "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
  		   p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
  		   p_prio->eth);
  }
  
  static void
  qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
  		      struct dcbx_app_priority_feature *p_app,
  		      struct dcbx_app_priority_entry *p_tbl,
  		      struct qed_dcbx_params *p_params, bool ieee)
  {
  	struct qed_app_entry *entry;
  	u8 pri_map;
  	int i;
  
  	p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
  						  DCBX_APP_WILLING);
  	p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
  	p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
  	p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
  						      DCBX_APP_NUM_ENTRIES);
  	for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
  		entry = &p_params->app_entry[i];
  		if (ieee) {
  			u8 sf_ieee;
  			u32 val;
  
  			sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
  						    DCBX_APP_SF_IEEE);
  			switch (sf_ieee) {
  			case DCBX_APP_SF_IEEE_RESERVED:
  				/* Old MFW */
  				val = QED_MFW_GET_FIELD(p_tbl[i].entry,
  							DCBX_APP_SF);
  				entry->sf_ieee = val ?
  				    QED_DCBX_SF_IEEE_TCP_UDP_PORT :
  				    QED_DCBX_SF_IEEE_ETHTYPE;
  				break;
  			case DCBX_APP_SF_IEEE_ETHTYPE:
  				entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
  				break;
  			case DCBX_APP_SF_IEEE_TCP_PORT:
  				entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
  				break;
  			case DCBX_APP_SF_IEEE_UDP_PORT:
  				entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
  				break;
  			case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
  				entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
  				break;
  			}
  		} else {
  			entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
  							     DCBX_APP_SF));
  		}
  
  		pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
  		entry->prio = ffs(pri_map) - 1;
  		entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
  						    DCBX_APP_PROTOCOL_ID);
  		qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
  					       entry->proto_id,
  					       &entry->proto_type, ieee);
  	}
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  		   "APP params: willing %d, valid %d error = %d\n",
  		   p_params->app_willing, p_params->app_valid,
  		   p_params->app_error);
  }
  
  static void
  qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
  		      u32 pfc, struct qed_dcbx_params *p_params)
  {
  	u8 pfc_map;
  
  	p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
  	p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
  	p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
  	pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
  	p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
  	p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
  	p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
  	p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
  	p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
  	p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
  	p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
  	p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  		   "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
  		   p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
  		   p_params->pfc.enabled);
  }
  
  static void
  qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
  		      struct dcbx_ets_feature *p_ets,
  		      struct qed_dcbx_params *p_params)
  {
  	u32 bw_map[2], tsa_map[2], pri_map;
  	int i;
  
  	p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
  						  DCBX_ETS_WILLING);
  	p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
  						  DCBX_ETS_ENABLED);
  	p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
  	p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
  						 DCBX_ETS_MAX_TCS);
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  		   "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
  		   p_params->ets_willing, p_params->ets_enabled,
  		   p_params->ets_cbs, p_ets->pri_tc_tbl[0],
  		   p_params->max_ets_tc);
  
  	if (p_params->ets_enabled && !p_params->max_ets_tc) {
  		p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
  		DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  			   "ETS params: max_ets_tc is forced to %d\n",
  		p_params->max_ets_tc);
  	}
  
  	/* 8 bit tsa and bw data corresponding to each of the 8 TC's are
  	 * encoded in a type u32 array of size 2.
  	 */
  	bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
  	bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
  	tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
  	tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
  	pri_map = p_ets->pri_tc_tbl[0];
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
  		p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
  		p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
  		p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
  		DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  			   "elem %d  bw_tbl %x tsa_tbl %x\n",
  			   i, p_params->ets_tc_bw_tbl[i],
  			   p_params->ets_tc_tsa_tbl[i]);
  	}
  }
  
  static void
  qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
  			   struct dcbx_app_priority_feature *p_app,
  			   struct dcbx_app_priority_entry *p_tbl,
  			   struct dcbx_ets_feature *p_ets,
  			   u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
  {
  	qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
  	qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
  	qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
  }
  
  static void
  qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
  {
  	struct dcbx_features *p_feat;
  
  	p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
  	qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
  				   p_feat->app.app_pri_tbl, &p_feat->ets,
  				   p_feat->pfc, &params->local.params, false);
  	params->local.valid = true;
  }
  
  static void
  qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
  {
  	struct dcbx_features *p_feat;
  
  	p_feat = &p_hwfn->p_dcbx_info->remote.features;
  	qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
  				   p_feat->app.app_pri_tbl, &p_feat->ets,
  				   p_feat->pfc, &params->remote.params, false);
  	params->remote.valid = true;
  }
  
  static void
  qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
  				struct qed_dcbx_get *params)
  {
  	struct qed_dcbx_operational_params *p_operational;
  	struct qed_dcbx_results *p_results;
  	struct dcbx_features *p_feat;
  	bool enabled, err;
  	u32 flags;
  	bool val;
  
  	flags = p_hwfn->p_dcbx_info->operational.flags;
  
  	/* If DCBx version is non zero, then negotiation
  	 * was successfuly performed
  	 */
  	p_operational = &params->operational;
  	enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
  		     DCBX_CONFIG_VERSION_DISABLED);
  	if (!enabled) {
  		p_operational->enabled = enabled;
  		p_operational->valid = false;
  		DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
  		return;
  	}
  
  	p_feat = &p_hwfn->p_dcbx_info->operational.features;
  	p_results = &p_hwfn->p_dcbx_info->results;
  
  	val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
  		 DCBX_CONFIG_VERSION_IEEE);
  	p_operational->ieee = val;
  	val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
  		 DCBX_CONFIG_VERSION_CEE);
  	p_operational->cee = val;
  
  	val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
  		 DCBX_CONFIG_VERSION_STATIC);
  	p_operational->local = val;
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB,
  		   "Version support: ieee %d, cee %d, static %d\n",
  		   p_operational->ieee, p_operational->cee,
  		   p_operational->local);
  
  	qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
  				   p_feat->app.app_pri_tbl, &p_feat->ets,
  				   p_feat->pfc, &params->operational.params,
  				   p_operational->ieee);
  	qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
  	err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
  	p_operational->err = err;
  	p_operational->enabled = enabled;
  	p_operational->valid = true;
  }
  
  static void
  qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
  			       struct qed_dcbx_get *params)
  {
  	struct lldp_config_params_s *p_local;
  
  	p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
  
  	memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
  	       ARRAY_SIZE(p_local->local_chassis_id));
  	memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
  	       ARRAY_SIZE(p_local->local_port_id));
  }
  
  static void
  qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
  				struct qed_dcbx_get *params)
  {
  	struct lldp_status_params_s *p_remote;
  
  	p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
  
  	memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
  	       ARRAY_SIZE(p_remote->peer_chassis_id));
  	memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
  	       ARRAY_SIZE(p_remote->peer_port_id));
  }
  
  static int
  qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
  		    enum qed_mib_read_type type)
  {
  	switch (type) {
  	case QED_DCBX_REMOTE_MIB:
  		qed_dcbx_get_remote_params(p_hwfn, p_params);
  		break;
  	case QED_DCBX_LOCAL_MIB:
  		qed_dcbx_get_local_params(p_hwfn, p_params);
  		break;
  	case QED_DCBX_OPERATIONAL_MIB:
  		qed_dcbx_get_operational_params(p_hwfn, p_params);
  		break;
  	case QED_DCBX_REMOTE_LLDP_MIB:
  		qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
  		break;
  	case QED_DCBX_LOCAL_LLDP_MIB:
  		qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
  		break;
  	default:
  		DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
  		return -EINVAL;
  	}
  
  	return 0;
  }
  
  static int
  qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  {
  	struct qed_dcbx_mib_meta_data data;
  	int rc = 0;
  
  	memset(&data, 0, sizeof(data));
  	data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
  							   lldp_config_params);
  	data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
  	data.size = sizeof(struct lldp_config_params_s);
  	qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
  
  	return rc;
  }
  
  static int
  qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
  			      struct qed_ptt *p_ptt,
  			      enum qed_mib_read_type type)
  {
  	struct qed_dcbx_mib_meta_data data;
  	int rc = 0;
  
  	memset(&data, 0, sizeof(data));
  	data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
  							   lldp_status_params);
  	data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
  	data.size = sizeof(struct lldp_status_params_s);
  	rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
  
  	return rc;
  }
  
  static int
  qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
  			      struct qed_ptt *p_ptt,
  			      enum qed_mib_read_type type)
  {
  	struct qed_dcbx_mib_meta_data data;
  	int rc = 0;
  
  	memset(&data, 0, sizeof(data));
  	data.addr = p_hwfn->mcp_info->port_addr +
  		    offsetof(struct public_port, operational_dcbx_mib);
  	data.mib = &p_hwfn->p_dcbx_info->operational;
  	data.size = sizeof(struct dcbx_mib);
  	rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
  
  	return rc;
  }
  
  static int
  qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
  			 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
  {
  	struct qed_dcbx_mib_meta_data data;
  	int rc = 0;
  
  	memset(&data, 0, sizeof(data));
  	data.addr = p_hwfn->mcp_info->port_addr +
  		    offsetof(struct public_port, remote_dcbx_mib);
  	data.mib = &p_hwfn->p_dcbx_info->remote;
  	data.size = sizeof(struct dcbx_mib);
  	rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
  
  	return rc;
  }
  
  static int
  qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
  {
  	struct qed_dcbx_mib_meta_data data;
  	int rc = 0;
  
  	memset(&data, 0, sizeof(data));
  	data.addr = p_hwfn->mcp_info->port_addr +
  		    offsetof(struct public_port, local_admin_dcbx_mib);
  	data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
  	data.size = sizeof(struct dcbx_local_params);
  	qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
  
  	return rc;
  }
  
  static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
  			     struct qed_ptt *p_ptt, enum qed_mib_read_type type)
  {
  	int rc = -EINVAL;
  
  	switch (type) {
  	case QED_DCBX_OPERATIONAL_MIB:
  		rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
  		break;
  	case QED_DCBX_REMOTE_MIB:
  		rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
  		break;
  	case QED_DCBX_LOCAL_MIB:
  		rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
  		break;
  	case QED_DCBX_REMOTE_LLDP_MIB:
  		rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
  		break;
  	case QED_DCBX_LOCAL_LLDP_MIB:
  		rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
  		break;
  	default:
  		DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
  	}
  
  	return rc;
  }
  
  void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
  {
  	struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
  	void *cookie = hwfn->cdev->ops_cookie;
  
  	if (cookie && op->dcbx_aen)
  		op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
  }
  
  /* Read updated MIB.
   * Reconfigure QM and invoke PF update ramrod command if operational MIB
   * change is detected.
   */
  int
  qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
  			  struct qed_ptt *p_ptt, enum qed_mib_read_type type)
  {
  	int rc = 0;
  
  	rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
  	if (rc)
  		return rc;
  
  	if (type == QED_DCBX_OPERATIONAL_MIB) {
  		rc = qed_dcbx_process_mib_info(p_hwfn);
  		if (!rc) {
  			/* reconfigure tcs of QM queues according
  			 * to negotiation results
  			 */
  			qed_qm_reconf(p_hwfn, p_ptt);
  
  			/* update storm FW with negotiation results */
  			qed_sp_pf_update(p_hwfn);
  
  			/* for roce PFs, we may want to enable/disable DPM
  			 * when DCBx change occurs
  			 */
  			if (p_hwfn->hw_info.personality ==
  			    QED_PCI_ETH_ROCE)
  				qed_roce_dpm_dcbx(p_hwfn, p_ptt);
  		}
  	}
  
  	qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
  
  	if (type == QED_DCBX_OPERATIONAL_MIB) {
  		struct qed_dcbx_results *p_data;
  		u16 val;
  
  		/* Configure in NIG which protocols support EDPM and should
  		 * honor PFC.
  		 */
  		p_data = &p_hwfn->p_dcbx_info->results;
  		val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
  		      (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
  		val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
  		val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
  		qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
  	}
  
  	qed_dcbx_aen(p_hwfn, type);
  
  	return rc;
  }
  
  int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
  {
  	p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
  	if (!p_hwfn->p_dcbx_info)
  		return -ENOMEM;
  
  	return 0;
  }
  
  void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
  {
  	kfree(p_hwfn->p_dcbx_info);
  	p_hwfn->p_dcbx_info = NULL;
  }
  
  static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
  					  struct qed_dcbx_results *p_src,
  					  enum dcbx_protocol_type type)
  {
  	p_data->dcb_enable_flag = p_src->arr[type].enable;
  	p_data->dcb_priority = p_src->arr[type].priority;
  	p_data->dcb_tc = p_src->arr[type].tc;
  }
  
  /* Set pf update ramrod command params */
  void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
  				   struct pf_update_ramrod_data *p_dest)
  {
  	struct protocol_dcb_data *p_dcb_data;
  	u8 update_flag;
  
  	update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
  	p_dest->update_fcoe_dcb_data_mode = update_flag;
  
  	update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
  	p_dest->update_roce_dcb_data_mode = update_flag;
  
  	update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
  	p_dest->update_rroce_dcb_data_mode = update_flag;
  
  	update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
  	p_dest->update_iscsi_dcb_data_mode = update_flag;
  	update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
  	p_dest->update_eth_dcb_data_mode = update_flag;
  
  	p_dcb_data = &p_dest->fcoe_dcb_data;
  	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
  	p_dcb_data = &p_dest->roce_dcb_data;
  	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
  	p_dcb_data = &p_dest->rroce_dcb_data;
  	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
  	p_dcb_data = &p_dest->iscsi_dcb_data;
  	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
  	p_dcb_data = &p_dest->eth_dcb_data;
  	qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
  }
  
  #ifdef CONFIG_DCB
  static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
  				 struct qed_dcbx_get *p_get,
  				 enum qed_mib_read_type type)
  {
  	struct qed_ptt *p_ptt;
  	int rc;
  
  	if (IS_VF(p_hwfn->cdev))
  		return -EINVAL;
  
  	p_ptt = qed_ptt_acquire(p_hwfn);
  	if (!p_ptt)
  		return -EBUSY;
  
  	rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
  	if (rc)
  		goto out;
  
  	rc = qed_dcbx_get_params(p_hwfn, p_get, type);
  
  out:
  	qed_ptt_release(p_hwfn, p_ptt);
  	return rc;
  }
  
  static void
  qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
  		      u32 *pfc, struct qed_dcbx_params *p_params)
  {
  	u8 pfc_map = 0;
  	int i;
  
  	*pfc &= ~DCBX_PFC_ERROR_MASK;
  
  	if (p_params->pfc.willing)
  		*pfc |= DCBX_PFC_WILLING_MASK;
  	else
  		*pfc &= ~DCBX_PFC_WILLING_MASK;
  
  	if (p_params->pfc.enabled)
  		*pfc |= DCBX_PFC_ENABLED_MASK;
  	else
  		*pfc &= ~DCBX_PFC_ENABLED_MASK;
  
  	*pfc &= ~DCBX_PFC_CAPS_MASK;
  	*pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
  
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
  		if (p_params->pfc.prio[i])
  			pfc_map |= BIT(i);
  
  	*pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
  	*pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
  }
  
  static void
  qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
  		      struct dcbx_ets_feature *p_ets,
  		      struct qed_dcbx_params *p_params)
  {
  	u8 *bw_map, *tsa_map;
  	u32 val;
  	int i;
  
  	if (p_params->ets_willing)
  		p_ets->flags |= DCBX_ETS_WILLING_MASK;
  	else
  		p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
  
  	if (p_params->ets_cbs)
  		p_ets->flags |= DCBX_ETS_CBS_MASK;
  	else
  		p_ets->flags &= ~DCBX_ETS_CBS_MASK;
  
  	if (p_params->ets_enabled)
  		p_ets->flags |= DCBX_ETS_ENABLED_MASK;
  	else
  		p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
  
  	p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
  	p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
  
  	bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
  	tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
  	p_ets->pri_tc_tbl[0] = 0;
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
  		bw_map[i] = p_params->ets_tc_bw_tbl[i];
  		tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
  		/* Copy the priority value to the corresponding 4 bits in the
  		 * traffic class table.
  		 */
  		val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
  		p_ets->pri_tc_tbl[0] |= val;
  	}
  	for (i = 0; i < 2; i++) {
  		p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
  		p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
  	}
  }
  
  static void
  qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
  		      struct dcbx_app_priority_feature *p_app,
  		      struct qed_dcbx_params *p_params, bool ieee)
  {
  	u32 *entry;
  	int i;
  
  	if (p_params->app_willing)
  		p_app->flags |= DCBX_APP_WILLING_MASK;
  	else
  		p_app->flags &= ~DCBX_APP_WILLING_MASK;
  
  	if (p_params->app_valid)
  		p_app->flags |= DCBX_APP_ENABLED_MASK;
  	else
  		p_app->flags &= ~DCBX_APP_ENABLED_MASK;
  
  	p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
  	p_app->flags |= (u32)p_params->num_app_entries <<
  	    DCBX_APP_NUM_ENTRIES_SHIFT;
  
  	for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
  		entry = &p_app->app_pri_tbl[i].entry;
  		*entry = 0;
  		if (ieee) {
  			*entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
  			switch (p_params->app_entry[i].sf_ieee) {
  			case QED_DCBX_SF_IEEE_ETHTYPE:
  				*entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
  					   DCBX_APP_SF_IEEE_SHIFT);
  				*entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
  					   DCBX_APP_SF_SHIFT);
  				break;
  			case QED_DCBX_SF_IEEE_TCP_PORT:
  				*entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
  					   DCBX_APP_SF_IEEE_SHIFT);
  				*entry |= ((u32)DCBX_APP_SF_PORT <<
  					   DCBX_APP_SF_SHIFT);
  				break;
  			case QED_DCBX_SF_IEEE_UDP_PORT:
  				*entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
  					   DCBX_APP_SF_IEEE_SHIFT);
  				*entry |= ((u32)DCBX_APP_SF_PORT <<
  					   DCBX_APP_SF_SHIFT);
  				break;
  			case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
  				*entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
  					   DCBX_APP_SF_IEEE_SHIFT);
  				*entry |= ((u32)DCBX_APP_SF_PORT <<
  					   DCBX_APP_SF_SHIFT);
  				break;
  			}
  		} else {
  			*entry &= ~DCBX_APP_SF_MASK;
  			if (p_params->app_entry[i].ethtype)
  				*entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
  					   DCBX_APP_SF_SHIFT);
  			else
  				*entry |= ((u32)DCBX_APP_SF_PORT <<
  					   DCBX_APP_SF_SHIFT);
  		}
  
  		*entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
  		*entry |= ((u32)p_params->app_entry[i].proto_id <<
  			   DCBX_APP_PROTOCOL_ID_SHIFT);
  		*entry &= ~DCBX_APP_PRI_MAP_MASK;
  		*entry |= ((u32)(p_params->app_entry[i].prio) <<
  			   DCBX_APP_PRI_MAP_SHIFT);
  	}
  }
  
  static void
  qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
  			  struct dcbx_local_params *local_admin,
  			  struct qed_dcbx_set *params)
  {
  	bool ieee = false;
  
  	local_admin->flags = 0;
  	memcpy(&local_admin->features,
  	       &p_hwfn->p_dcbx_info->operational.features,
  	       sizeof(local_admin->features));
  
  	if (params->enabled) {
  		local_admin->config = params->ver_num;
  		ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
  	} else {
  		local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
  	}
  
  	DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
  		   local_admin->config);
  
  	if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
  		qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
  				      &params->config.params);
  
  	if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
  		qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
  				      &params->config.params);
  
  	if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
  		qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
  				      &params->config.params, ieee);
  }
  
  int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
  			   struct qed_dcbx_set *params, bool hw_commit)
  {
  	struct dcbx_local_params local_admin;
  	struct qed_dcbx_mib_meta_data data;
  	u32 resp = 0, param = 0;
  	int rc = 0;
  
  	if (!hw_commit) {
  		memcpy(&p_hwfn->p_dcbx_info->set, params,
  		       sizeof(struct qed_dcbx_set));
  		return 0;
  	}
  
  	/* clear set-parmas cache */
  	memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
  
  	memset(&local_admin, 0, sizeof(local_admin));
  	qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
  
  	data.addr = p_hwfn->mcp_info->port_addr +
  	    offsetof(struct public_port, local_admin_dcbx_mib);
  	data.local_admin = &local_admin;
  	data.size = sizeof(struct dcbx_local_params);
  	qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
  
  	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
  			 1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
  	if (rc)
  		DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
  
  	return rc;
  }
  
  int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
  			       struct qed_dcbx_set *params)
  {
  	struct qed_dcbx_get *dcbx_info;
  	int rc;
  
  	if (p_hwfn->p_dcbx_info->set.config.valid) {
  		memcpy(params, &p_hwfn->p_dcbx_info->set,
  		       sizeof(struct qed_dcbx_set));
  		return 0;
  	}
  
  	dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
  	if (!dcbx_info)
  		return -ENOMEM;
  
  	rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
  	if (rc) {
  		kfree(dcbx_info);
  		return rc;
  	}
  
  	p_hwfn->p_dcbx_info->set.override_flags = 0;
  	p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
  	if (dcbx_info->operational.cee)
  		p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
  	if (dcbx_info->operational.ieee)
  		p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
  	if (dcbx_info->operational.local)
  		p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
  
  	p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
  	memcpy(&p_hwfn->p_dcbx_info->set.config.params,
  	       &dcbx_info->operational.params,
  	       sizeof(struct qed_dcbx_admin_params));
  	p_hwfn->p_dcbx_info->set.config.valid = true;
  
  	memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
  
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
  					       enum qed_mib_read_type type)
  {
  	struct qed_dcbx_get *dcbx_info;
  
  	dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
  	if (!dcbx_info)
  		return NULL;
  
  	if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
  		kfree(dcbx_info);
  		return NULL;
  	}
  
  	if ((type == QED_DCBX_OPERATIONAL_MIB) &&
  	    !dcbx_info->operational.enabled) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational\n");
  		kfree(dcbx_info);
  		return NULL;
  	}
  
  	return dcbx_info;
  }
  
  static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	bool enabled;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return 0;
  
  	enabled = dcbx_info->operational.enabled;
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
  	kfree(dcbx_info);
  
  	return enabled;
  }
  
  static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return 1;
  
  	dcbx_set.enabled = !!state;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return 1;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc ? 1 : 0;
  }
  
  static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
  				   u8 *pgid, u8 *bw_pct, u8 *up_map)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
  	*prio_type = *pgid = *bw_pct = *up_map = 0;
  	if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid tc %d\n", tc);
  		return;
  	}
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return;
  
  	*pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
  	kfree(dcbx_info);
  }
  
  static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  
  	*bw_pct = 0;
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
  	if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
  		return;
  	}
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return;
  
  	*bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
  	kfree(dcbx_info);
  }
  
  static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
  				   u8 *bwg_id, u8 *bw_pct, u8 *up_map)
  {
  	DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
  	*prio = *bwg_id = *bw_pct = *up_map = 0;
  }
  
  static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
  				    int bwg_id, u8 *bw_pct)
  {
  	DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
  	*bw_pct = 0;
  }
  
  static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
  				int priority, u8 *setting)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
  	if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid priority %d\n", priority);
  		return;
  	}
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return;
  
  	*setting = dcbx_info->operational.params.pfc.prio[priority];
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
  	kfree(dcbx_info);
  }
  
  static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
  		   priority, setting);
  	if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid priority %d\n", priority);
  		return;
  	}
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return;
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
  	dcbx_set.config.params.pfc.prio[priority] = !!setting;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  }
  
  static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	int rc = 0;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return 1;
  
  	switch (capid) {
  	case DCB_CAP_ATTR_PG:
  	case DCB_CAP_ATTR_PFC:
  	case DCB_CAP_ATTR_UP2TC:
  	case DCB_CAP_ATTR_GSP:
  		*cap = true;
  		break;
  	case DCB_CAP_ATTR_PG_TCS:
  	case DCB_CAP_ATTR_PFC_TCS:
  		*cap = 0x80;
  		break;
  	case DCB_CAP_ATTR_DCBX:
  		*cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
  			DCB_CAP_DCBX_VER_IEEE | DCB_CAP_DCBX_STATIC);
  		break;
  	default:
  		*cap = false;
  		rc = 1;
  	}
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
  	kfree(dcbx_info);
  
  	return rc;
  }
  
  static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	int rc = 0;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	switch (tcid) {
  	case DCB_NUMTCS_ATTR_PG:
  		*num = dcbx_info->operational.params.max_ets_tc;
  		break;
  	case DCB_NUMTCS_ATTR_PFC:
  		*num = dcbx_info->operational.params.pfc.max_tc;
  		break;
  	default:
  		rc = -EINVAL;
  	}
  
  	kfree(dcbx_info);
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
  
  	return rc;
  }
  
  static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	bool enabled;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return 0;
  
  	enabled = dcbx_info->operational.params.pfc.enabled;
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
  	kfree(dcbx_info);
  
  	return enabled;
  }
  
  static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	u8 mode = 0;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return 0;
  
  	if (dcbx_info->operational.enabled)
  		mode |= DCB_CAP_DCBX_LLD_MANAGED;
  	if (dcbx_info->operational.ieee)
  		mode |= DCB_CAP_DCBX_VER_IEEE;
  	if (dcbx_info->operational.cee)
  		mode |= DCB_CAP_DCBX_VER_CEE;
  	if (dcbx_info->operational.local)
  		mode |= DCB_CAP_DCBX_STATIC;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
  	kfree(dcbx_info);
  
  	return mode;
  }
  
  static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
  				   int tc,
  				   u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB,
  		   "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
  		   tc, pri_type, pgid, bw_pct, up_map);
  
  	if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid tc %d\n", tc);
  		return;
  	}
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return;
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
  	dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  }
  
  static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
  				   u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
  {
  	DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
  }
  
  static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
  	if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
  		return;
  	}
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return;
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
  	dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  }
  
  static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
  {
  	DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
  }
  
  static u8 qed_dcbnl_setall(struct qed_dev *cdev)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return 1;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return 1;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc;
  }
  
  static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return 1;
  
  	switch (tcid) {
  	case DCB_NUMTCS_ATTR_PG:
  		dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
  		dcbx_set.config.params.max_ets_tc = num;
  		break;
  	case DCB_NUMTCS_ATTR_PFC:
  		dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
  		dcbx_set.config.params.pfc.max_tc = num;
  		break;
  	default:
  		DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
  		return -EINVAL;
  	}
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return -EINVAL;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return 0;
  }
  
  static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return;
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
  	dcbx_set.config.params.pfc.enabled = !!state;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  }
  
  static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	struct qed_app_entry *entry;
  	bool ethtype;
  	u8 prio = 0;
  	int i;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
  	for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
  		entry = &dcbx_info->operational.params.app_entry[i];
  		if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
  			prio = entry->prio;
  			break;
  		}
  	}
  
  	if (i == QED_DCBX_MAX_APP_PROTOCOL) {
  		DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	kfree(dcbx_info);
  
  	return prio;
  }
  
  static int qed_dcbnl_setapp(struct qed_dev *cdev,
  			    u8 idtype, u16 idval, u8 pri_map)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_app_entry *entry;
  	struct qed_ptt *ptt;
  	bool ethtype;
  	int rc, i;
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return -EINVAL;
  
  	ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
  	for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
  		entry = &dcbx_set.config.params.app_entry[i];
  		if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
  			break;
  		/* First empty slot */
  		if (!entry->proto_id) {
  			dcbx_set.config.params.num_app_entries++;
  			break;
  		}
  	}
  
  	if (i == QED_DCBX_MAX_APP_PROTOCOL) {
  		DP_ERR(cdev, "App table is full\n");
  		return -EBUSY;
  	}
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
  	dcbx_set.config.params.app_entry[i].ethtype = ethtype;
  	dcbx_set.config.params.app_entry[i].proto_id = idval;
  	dcbx_set.config.params.app_entry[i].prio = pri_map;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return -EBUSY;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc;
  }
  
  static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
  
  	if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
  	    !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
  		DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
  		return 1;
  	}
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return 1;
  
  	dcbx_set.ver_num = 0;
  	if (mode & DCB_CAP_DCBX_VER_CEE) {
  		dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
  		dcbx_set.enabled = true;
  	}
  
  	if (mode & DCB_CAP_DCBX_VER_IEEE) {
  		dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
  		dcbx_set.enabled = true;
  	}
  
  	if (mode & DCB_CAP_DCBX_STATIC) {
  		dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
  		dcbx_set.enabled = true;
  	}
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return 1;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc;
  }
  
  static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return 1;
  
  	*flags = 0;
  	switch (featid) {
  	case DCB_FEATCFG_ATTR_PG:
  		if (dcbx_info->operational.params.ets_enabled)
  			*flags = DCB_FEATCFG_ENABLE;
  		else
  			*flags = DCB_FEATCFG_ERROR;
  		break;
  	case DCB_FEATCFG_ATTR_PFC:
  		if (dcbx_info->operational.params.pfc.enabled)
  			*flags = DCB_FEATCFG_ENABLE;
  		else
  			*flags = DCB_FEATCFG_ERROR;
  		break;
  	case DCB_FEATCFG_ATTR_APP:
  		if (dcbx_info->operational.params.app_valid)
  			*flags = DCB_FEATCFG_ENABLE;
  		else
  			*flags = DCB_FEATCFG_ERROR;
  		break;
  	default:
  		DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
  		kfree(dcbx_info);
  		return 1;
  	}
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_set dcbx_set;
  	bool enabled, willing;
  	struct qed_ptt *ptt;
  	int rc;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
  		   featid, flags);
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return 1;
  
  	enabled = !!(flags & DCB_FEATCFG_ENABLE);
  	willing = !!(flags & DCB_FEATCFG_WILLING);
  	switch (featid) {
  	case DCB_FEATCFG_ATTR_PG:
  		dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
  		dcbx_set.config.params.ets_enabled = enabled;
  		dcbx_set.config.params.ets_willing = willing;
  		break;
  	case DCB_FEATCFG_ATTR_PFC:
  		dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
  		dcbx_set.config.params.pfc.enabled = enabled;
  		dcbx_set.config.params.pfc.willing = willing;
  		break;
  	case DCB_FEATCFG_ATTR_APP:
  		dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
  		dcbx_set.config.params.app_willing = willing;
  		break;
  	default:
  		DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
  		return 1;
  	}
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return 1;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return 0;
  }
  
  static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
  				     struct dcb_peer_app_info *info,
  				     u16 *app_count)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	info->willing = dcbx_info->remote.params.app_willing;
  	info->error = dcbx_info->remote.params.app_error;
  	*app_count = dcbx_info->remote.params.num_app_entries;
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
  				      struct dcb_app *table)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	int i;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
  		if (dcbx_info->remote.params.app_entry[i].ethtype)
  			table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
  		else
  			table[i].selector = DCB_APP_IDTYPE_PORTNUM;
  		table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
  		table[i].protocol =
  		    dcbx_info->remote.params.app_entry[i].proto_id;
  	}
  
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	int i;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
  		if (dcbx_info->remote.params.pfc.prio[i])
  			pfc->pfc_en |= BIT(i);
  
  	pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
  		   pfc->pfc_en, pfc->tcs_supported);
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	int i;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	pg->willing = dcbx_info->remote.params.ets_willing;
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
  		pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
  		pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
  	}
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
  				  struct ieee_pfc *pfc, bool remote)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_params *params;
  	struct qed_dcbx_get *dcbx_info;
  	int rc, i;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	if (!dcbx_info->operational.ieee) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	if (remote) {
  		memset(dcbx_info, 0, sizeof(*dcbx_info));
  		rc = qed_dcbx_query_params(hwfn, dcbx_info,
  					   QED_DCBX_REMOTE_MIB);
  		if (rc) {
  			kfree(dcbx_info);
  			return -EINVAL;
  		}
  
  		params = &dcbx_info->remote.params;
  	} else {
  		params = &dcbx_info->operational.params;
  	}
  
  	pfc->pfc_cap = params->pfc.max_tc;
  	pfc->pfc_en = 0;
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
  		if (params->pfc.prio[i])
  			pfc->pfc_en |= BIT(i);
  
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
  {
  	return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
  }
  
  static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc, i;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	if (!dcbx_info->operational.ieee) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	kfree(dcbx_info);
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return -EINVAL;
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
  	for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
  		dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
  
  	dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return -EINVAL;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc;
  }
  
  static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
  				  struct ieee_ets *ets, bool remote)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	struct qed_dcbx_params *params;
  	int rc;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	if (!dcbx_info->operational.ieee) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	if (remote) {
  		memset(dcbx_info, 0, sizeof(*dcbx_info));
  		rc = qed_dcbx_query_params(hwfn, dcbx_info,
  					   QED_DCBX_REMOTE_MIB);
  		if (rc) {
  			kfree(dcbx_info);
  			return -EINVAL;
  		}
  
  		params = &dcbx_info->remote.params;
  	} else {
  		params = &dcbx_info->operational.params;
  	}
  
  	ets->ets_cap = params->max_ets_tc;
  	ets->willing = params->ets_willing;
  	ets->cbs = params->ets_cbs;
  	memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
  	memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
  	memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
  {
  	return qed_dcbnl_get_ieee_ets(cdev, ets, false);
  }
  
  static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	struct qed_dcbx_set dcbx_set;
  	struct qed_ptt *ptt;
  	int rc;
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	if (!dcbx_info->operational.ieee) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	kfree(dcbx_info);
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return -EINVAL;
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
  	dcbx_set.config.params.max_ets_tc = ets->ets_cap;
  	dcbx_set.config.params.ets_willing = ets->willing;
  	dcbx_set.config.params.ets_cbs = ets->cbs;
  	memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
  	       sizeof(ets->tc_tx_bw));
  	memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
  	       sizeof(ets->tc_tsa));
  	memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
  	       sizeof(ets->prio_tc));
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return -EINVAL;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc;
  }
  
  static int
  qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
  {
  	return qed_dcbnl_get_ieee_ets(cdev, ets, true);
  }
  
  static int
  qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
  {
  	return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
  }
  
  static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
  {
  	switch (selector) {
  	case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
  		*sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
  		break;
  	case IEEE_8021QAZ_APP_SEL_STREAM:
  		*sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
  		break;
  	case IEEE_8021QAZ_APP_SEL_DGRAM:
  		*sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
  		break;
  	case IEEE_8021QAZ_APP_SEL_ANY:
  		*sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
  		break;
  	default:
  		return -EINVAL;
  	}
  
  	return 0;
  }
  
  static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	struct qed_app_entry *entry;
  	u8 prio = 0;
  	u8 sf_ieee;
  	int i;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
  		   app->selector, app->protocol);
  
  	if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
  		DP_INFO(cdev, "Invalid selector field value %d\n",
  			app->selector);
  		return -EINVAL;
  	}
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	if (!dcbx_info->operational.ieee) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
  		entry = &dcbx_info->operational.params.app_entry[i];
  		if ((entry->sf_ieee == sf_ieee) &&
  		    (entry->proto_id == app->protocol)) {
  			prio = entry->prio;
  			break;
  		}
  	}
  
  	if (i == QED_DCBX_MAX_APP_PROTOCOL) {
  		DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
  		       app->protocol);
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	app->priority = ffs(prio) - 1;
  
  	kfree(dcbx_info);
  
  	return 0;
  }
  
  static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
  {
  	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
  	struct qed_dcbx_get *dcbx_info;
  	struct qed_dcbx_set dcbx_set;
  	struct qed_app_entry *entry;
  	struct qed_ptt *ptt;
  	u8 sf_ieee;
  	int rc, i;
  
  	DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
  		   app->selector, app->protocol, app->priority);
  	if (app->priority >= QED_MAX_PFC_PRIORITIES) {
  		DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
  		return -EINVAL;
  	}
  
  	if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
  		DP_INFO(cdev, "Invalid selector field value %d\n",
  			app->selector);
  		return -EINVAL;
  	}
  
  	dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
  	if (!dcbx_info)
  		return -EINVAL;
  
  	if (!dcbx_info->operational.ieee) {
  		DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
  		kfree(dcbx_info);
  		return -EINVAL;
  	}
  
  	kfree(dcbx_info);
  
  	memset(&dcbx_set, 0, sizeof(dcbx_set));
  	rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
  	if (rc)
  		return -EINVAL;
  
  	for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
  		entry = &dcbx_set.config.params.app_entry[i];
  		if ((entry->sf_ieee == sf_ieee) &&
  		    (entry->proto_id == app->protocol))
  			break;
  		/* First empty slot */
  		if (!entry->proto_id) {
  			dcbx_set.config.params.num_app_entries++;
  			break;
  		}
  	}
  
  	if (i == QED_DCBX_MAX_APP_PROTOCOL) {
  		DP_ERR(cdev, "App table is full\n");
  		return -EBUSY;
  	}
  
  	dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
  	dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
  	dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
  	dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
  
  	ptt = qed_ptt_acquire(hwfn);
  	if (!ptt)
  		return -EBUSY;
  
  	rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
  
  	qed_ptt_release(hwfn, ptt);
  
  	return rc;
  }
  
  const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
  	.getstate = qed_dcbnl_getstate,
  	.setstate = qed_dcbnl_setstate,
  	.getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
  	.getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
  	.getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
  	.getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
  	.getpfccfg = qed_dcbnl_getpfccfg,
  	.setpfccfg = qed_dcbnl_setpfccfg,
  	.getcap = qed_dcbnl_getcap,
  	.getnumtcs = qed_dcbnl_getnumtcs,
  	.getpfcstate = qed_dcbnl_getpfcstate,
  	.getdcbx = qed_dcbnl_getdcbx,
  	.setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
  	.setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
  	.setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
  	.setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
  	.setall = qed_dcbnl_setall,
  	.setnumtcs = qed_dcbnl_setnumtcs,
  	.setpfcstate = qed_dcbnl_setpfcstate,
  	.setapp = qed_dcbnl_setapp,
  	.setdcbx = qed_dcbnl_setdcbx,
  	.setfeatcfg = qed_dcbnl_setfeatcfg,
  	.getfeatcfg = qed_dcbnl_getfeatcfg,
  	.getapp = qed_dcbnl_getapp,
  	.peer_getappinfo = qed_dcbnl_peer_getappinfo,
  	.peer_getapptable = qed_dcbnl_peer_getapptable,
  	.cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
  	.cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
  	.ieee_getpfc = qed_dcbnl_ieee_getpfc,
  	.ieee_setpfc = qed_dcbnl_ieee_setpfc,
  	.ieee_getets = qed_dcbnl_ieee_getets,
  	.ieee_setets = qed_dcbnl_ieee_setets,
  	.ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
  	.ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
  	.ieee_getapp = qed_dcbnl_ieee_getapp,
  	.ieee_setapp = qed_dcbnl_ieee_setapp,
  };
  
  #endif
  