text: /*******************************************************************
   * This file is part of the Emulex Linux Device Driver for         *
   * Fibre Channel Host Bus Adapters.                                *
   * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *
   * EMULEX and SLI are trademarks of Emulex.                        *
   * www.emulex.com                                                  *
   * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   *                                                                 *
   * This program is free software; you can redistribute it and/or   *
   * modify it under the terms of version 2 of the GNU General       *
   * Public License as published by the Free Software Foundation.    *
   * This program is distributed in the hope that it will be useful. *
   * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
   * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
   * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
   * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
   * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
   * more details, a copy of which can be found in the file COPYING  *
   * included with this package.                                     *
   *******************************************************************/
  
  #include <linux/blkdev.h>
  #include <linux/delay.h>
  #include <linux/dma-mapping.h>
  #include <linux/idr.h>
  #include <linux/interrupt.h>
  #include <linux/kthread.h>
  #include <linux/pci.h>
  #include <linux/spinlock.h>
  #include <linux/ctype.h>
  #include <linux/aer.h>
  #include <linux/slab.h>
  
  #include <scsi/scsi.h>
  #include <scsi/scsi_device.h>
  #include <scsi/scsi_host.h>
  #include <scsi/scsi_transport_fc.h>
  
  #include "lpfc_hw4.h"
  #include "lpfc_hw.h"
  #include "lpfc_sli.h"
  #include "lpfc_sli4.h"
  #include "lpfc_nl.h"
  #include "lpfc_disc.h"
  #include "lpfc_scsi.h"
  #include "lpfc.h"
  #include "lpfc_logmsg.h"
  #include "lpfc_crtn.h"
  #include "lpfc_vport.h"
  #include "lpfc_version.h"
  
  char *_dump_buf_data;
  unsigned long _dump_buf_data_order;
  char *_dump_buf_dif;
  unsigned long _dump_buf_dif_order;
  spinlock_t _dump_buf_lock;
  
  static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  static int lpfc_post_rcv_buf(struct lpfc_hba *);
  static int lpfc_sli4_queue_create(struct lpfc_hba *);
  static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
  static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  static int lpfc_setup_endian_order(struct lpfc_hba *);
  static int lpfc_sli4_read_config(struct lpfc_hba *);
  static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  static void lpfc_free_sgl_list(struct lpfc_hba *);
  static int lpfc_init_sgl_list(struct lpfc_hba *);
  static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  static void lpfc_free_active_sgl(struct lpfc_hba *);
  static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  
  static struct scsi_transport_template *lpfc_transport_template = NULL;
  static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  static DEFINE_IDR(lpfc_hba_index);
  
  /**
   * lpfc_config_port_prep - Perform lpfc initialization prior to config port
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
   * mailbox command. It retrieves the revision information from the HBA and
   * collects the Vital Product Data (VPD) about the HBA for preparing the
   * configuration of the HBA.
   *
   * Return codes:
   *   0 - success.
   *   -ERESTART - requests the SLI layer to reset the HBA and try again.
   *   Any other value - indicates an error.
   **/
  int
  lpfc_config_port_prep(struct lpfc_hba *phba)
  {
  	lpfc_vpd_t *vp = &phba->vpd;
  	int i = 0, rc;
  	LPFC_MBOXQ_t *pmb;
  	MAILBOX_t *mb;
  	char *lpfc_vpd_data = NULL;
  	uint16_t offset = 0;
  	static char licensed[56] =
  		    "key unlock for use with gnu public licensed code only\0";
  	static int init_key = 1;
  
  	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return -ENOMEM;
  	}
  
  	mb = &pmb->u.mb;
  	phba->link_state = LPFC_INIT_MBX_CMDS;
  
  	if (lpfc_is_LC_HBA(phba->pcidev->device)) {
  		if (init_key) {
  			uint32_t *ptext = (uint32_t *) licensed;
  
  			for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
  				*ptext = cpu_to_be32(*ptext);
  			init_key = 0;
  		}
  
  		lpfc_read_nv(phba, pmb);
  		memset((char*)mb->un.varRDnvp.rsvd3, 0,
  			sizeof (mb->un.varRDnvp.rsvd3));
  		memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
  			 sizeof (licensed));
  
  		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
  
  		if (rc != MBX_SUCCESS) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
  					"0324 Config Port initialization "
  					"error, mbxCmd x%x READ_NVPARM, "
  					"mbxStatus x%x\n",
  					mb->mbxCommand, mb->mbxStatus);
  			mempool_free(pmb, phba->mbox_mem_pool);
  			return -ERESTART;
  		}
  		memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
  		       sizeof(phba->wwnn));
  		memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
  		       sizeof(phba->wwpn));
  	}
  
  	phba->sli3_options = 0x0;
  
  	/* Setup and issue mailbox READ REV command */
  	lpfc_read_rev(phba, pmb);
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
  	if (rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0439 Adapter failed to init, mbxCmd x%x "
  				"READ_REV, mbxStatus x%x\n",
  				mb->mbxCommand, mb->mbxStatus);
  		mempool_free( pmb, phba->mbox_mem_pool);
  		return -ERESTART;
  	}
  
  
  	/*
  	 * The value of rr must be 1 since the driver set the cv field to 1.
  	 * This setting requires the FW to set all revision fields.
  	 */
  	if (mb->un.varRdRev.rr == 0) {
  		vp->rev.rBit = 0;
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0440 Adapter failed to init, READ_REV has "
  				"missing revision information.\n");
  		mempool_free(pmb, phba->mbox_mem_pool);
  		return -ERESTART;
  	}
  
  	if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
  		mempool_free(pmb, phba->mbox_mem_pool);
  		return -EINVAL;
  	}
  
  	/* Save information as VPD data */
  	vp->rev.rBit = 1;
  	memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
  	vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
  	memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
  	vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
  	memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
  	vp->rev.biuRev = mb->un.varRdRev.biuRev;
  	vp->rev.smRev = mb->un.varRdRev.smRev;
  	vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
  	vp->rev.endecRev = mb->un.varRdRev.endecRev;
  	vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
  	vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
  	vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
  	vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
  	vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
  	vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
  
  	/* If the sli feature level is less then 9, we must
  	 * tear down all RPIs and VPIs on link down if NPIV
  	 * is enabled.
  	 */
  	if (vp->rev.feaLevelHigh < 9)
  		phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
  
  	if (lpfc_is_LC_HBA(phba->pcidev->device))
  		memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
  						sizeof (phba->RandomData));
  
  	/* Get adapter VPD information */
  	lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
  	if (!lpfc_vpd_data)
  		goto out_free_mbox;
  
  	do {
  		lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
  		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
  
  		if (rc != MBX_SUCCESS) {
  			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  					"0441 VPD not present on adapter, "
  					"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
  					mb->mbxCommand, mb->mbxStatus);
  			mb->un.varDmp.word_cnt = 0;
  		}
  		/* dump mem may return a zero when finished or we got a
  		 * mailbox error, either way we are done.
  		 */
  		if (mb->un.varDmp.word_cnt == 0)
  			break;
  		if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
  			mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
  		lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
  				      lpfc_vpd_data + offset,
  				      mb->un.varDmp.word_cnt);
  		offset += mb->un.varDmp.word_cnt;
  	} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
  	lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
  
  	kfree(lpfc_vpd_data);
  out_free_mbox:
  	mempool_free(pmb, phba->mbox_mem_pool);
  	return 0;
  }
  
  /**
   * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
   * @phba: pointer to lpfc hba data structure.
   * @pmboxq: pointer to the driver internal queue element for mailbox command.
   *
   * This is the completion handler for driver's configuring asynchronous event
   * mailbox command to the device. If the mailbox command returns successfully,
   * it will set internal async event support flag to 1; otherwise, it will
   * set internal async event support flag to 0.
   **/
  static void
  lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
  {
  	if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
  		phba->temp_sensor_support = 1;
  	else
  		phba->temp_sensor_support = 0;
  	mempool_free(pmboxq, phba->mbox_mem_pool);
  	return;
  }
  
  /**
   * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
   * @phba: pointer to lpfc hba data structure.
   * @pmboxq: pointer to the driver internal queue element for mailbox command.
   *
   * This is the completion handler for dump mailbox command for getting
   * wake up parameters. When this command complete, the response contain
   * Option rom version of the HBA. This function translate the version number
   * into a human readable string and store it in OptionROMVersion.
   **/
  static void
  lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
  {
  	struct prog_id *prg;
  	uint32_t prog_id_word;
  	char dist = ' ';
  	/* character array used for decoding dist type. */
  	char dist_char[] = "nabx";
  
  	if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
  		mempool_free(pmboxq, phba->mbox_mem_pool);
  		return;
  	}
  
  	prg = (struct prog_id *) &prog_id_word;
  
  	/* word 7 contain option rom version */
  	prog_id_word = pmboxq->u.mb.un.varWords[7];
  
  	/* Decode the Option rom version word to a readable string */
  	if (prg->dist < 4)
  		dist = dist_char[prg->dist];
  
  	if ((prg->dist == 3) && (prg->num == 0))
  		sprintf(phba->OptionROMVersion, "%d.%d%d",
  			prg->ver, prg->rev, prg->lev);
  	else
  		sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
  			prg->ver, prg->rev, prg->lev,
  			dist, prg->num);
  	mempool_free(pmboxq, phba->mbox_mem_pool);
  	return;
  }
  
  /**
   * lpfc_config_port_post - Perform lpfc initialization after config port
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine will do LPFC initialization after the CONFIG_PORT mailbox
   * command call. It performs all internal resource and state setups on the
   * port: post IOCB buffers, enable appropriate host interrupt attentions,
   * ELS ring timers, etc.
   *
   * Return codes
   *   0 - success.
   *   Any other value - error.
   **/
  int
  lpfc_config_port_post(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
  	LPFC_MBOXQ_t *pmb;
  	MAILBOX_t *mb;
  	struct lpfc_dmabuf *mp;
  	struct lpfc_sli *psli = &phba->sli;
  	uint32_t status, timeout;
  	int i, j;
  	int rc;
  
  	spin_lock_irq(&phba->hbalock);
  	/*
  	 * If the Config port completed correctly the HBA is not
  	 * over heated any more.
  	 */
  	if (phba->over_temp_state == HBA_OVER_TEMP)
  		phba->over_temp_state = HBA_NORMAL_TEMP;
  	spin_unlock_irq(&phba->hbalock);
  
  	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return -ENOMEM;
  	}
  	mb = &pmb->u.mb;
  
  	/* Get login parameters for NID.  */
  	rc = lpfc_read_sparam(phba, pmb, 0);
  	if (rc) {
  		mempool_free(pmb, phba->mbox_mem_pool);
  		return -ENOMEM;
  	}
  
  	pmb->vport = vport;
  	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0448 Adapter failed init, mbxCmd x%x "
  				"READ_SPARM mbxStatus x%x\n",
  				mb->mbxCommand, mb->mbxStatus);
  		phba->link_state = LPFC_HBA_ERROR;
  		mp = (struct lpfc_dmabuf *) pmb->context1;
  		mempool_free(pmb, phba->mbox_mem_pool);
  		lpfc_mbuf_free(phba, mp->virt, mp->phys);
  		kfree(mp);
  		return -EIO;
  	}
  
  	mp = (struct lpfc_dmabuf *) pmb->context1;
  
  	memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
  	lpfc_mbuf_free(phba, mp->virt, mp->phys);
  	kfree(mp);
  	pmb->context1 = NULL;
  
  	if (phba->cfg_soft_wwnn)
  		u64_to_wwn(phba->cfg_soft_wwnn,
  			   vport->fc_sparam.nodeName.u.wwn);
  	if (phba->cfg_soft_wwpn)
  		u64_to_wwn(phba->cfg_soft_wwpn,
  			   vport->fc_sparam.portName.u.wwn);
  	memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
  	       sizeof (struct lpfc_name));
  	memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
  	       sizeof (struct lpfc_name));
  
  	/* Update the fc_host data structures with new wwn. */
  	fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
  	fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
  	fc_host_max_npiv_vports(shost) = phba->max_vpi;
  
  	/* If no serial number in VPD data, use low 6 bytes of WWNN */
  	/* This should be consolidated into parse_vpd ? - mr */
  	if (phba->SerialNumber[0] == 0) {
  		uint8_t *outptr;
  
  		outptr = &vport->fc_nodename.u.s.IEEE[0];
  		for (i = 0; i < 12; i++) {
  			status = *outptr++;
  			j = ((status & 0xf0) >> 4);
  			if (j <= 9)
  				phba->SerialNumber[i] =
  				    (char)((uint8_t) 0x30 + (uint8_t) j);
  			else
  				phba->SerialNumber[i] =
  				    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
  			i++;
  			j = (status & 0xf);
  			if (j <= 9)
  				phba->SerialNumber[i] =
  				    (char)((uint8_t) 0x30 + (uint8_t) j);
  			else
  				phba->SerialNumber[i] =
  				    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
  		}
  	}
  
  	lpfc_read_config(phba, pmb);
  	pmb->vport = vport;
  	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0453 Adapter failed to init, mbxCmd x%x "
  				"READ_CONFIG, mbxStatus x%x\n",
  				mb->mbxCommand, mb->mbxStatus);
  		phba->link_state = LPFC_HBA_ERROR;
  		mempool_free( pmb, phba->mbox_mem_pool);
  		return -EIO;
  	}
  
  	/* Check if the port is disabled */
  	lpfc_sli_read_link_ste(phba);
  
  	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
  	if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
  		phba->cfg_hba_queue_depth =
  			(mb->un.varRdConfig.max_xri + 1) -
  					lpfc_sli4_get_els_iocb_cnt(phba);
  
  	phba->lmt = mb->un.varRdConfig.lmt;
  
  	/* Get the default values for Model Name and Description */
  	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
  
  	if ((phba->cfg_link_speed > LINK_SPEED_10G)
  	    || ((phba->cfg_link_speed == LINK_SPEED_1G)
  		&& !(phba->lmt & LMT_1Gb))
  	    || ((phba->cfg_link_speed == LINK_SPEED_2G)
  		&& !(phba->lmt & LMT_2Gb))
  	    || ((phba->cfg_link_speed == LINK_SPEED_4G)
  		&& !(phba->lmt & LMT_4Gb))
  	    || ((phba->cfg_link_speed == LINK_SPEED_8G)
  		&& !(phba->lmt & LMT_8Gb))
  	    || ((phba->cfg_link_speed == LINK_SPEED_10G)
  		&& !(phba->lmt & LMT_10Gb))) {
  		/* Reset link speed to auto */
  		lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
  			"1302 Invalid speed for this board: "
  			"Reset link speed to auto: x%x\n",
  			phba->cfg_link_speed);
  			phba->cfg_link_speed = LINK_SPEED_AUTO;
  	}
  
  	phba->link_state = LPFC_LINK_DOWN;
  
  	/* Only process IOCBs on ELS ring till hba_state is READY */
  	if (psli->ring[psli->extra_ring].cmdringaddr)
  		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
  	if (psli->ring[psli->fcp_ring].cmdringaddr)
  		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
  	if (psli->ring[psli->next_ring].cmdringaddr)
  		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
  
  	/* Post receive buffers for desired rings */
  	if (phba->sli_rev != 3)
  		lpfc_post_rcv_buf(phba);
  
  	/*
  	 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
  	 */
  	if (phba->intr_type == MSIX) {
  		rc = lpfc_config_msi(phba, pmb);
  		if (rc) {
  			mempool_free(pmb, phba->mbox_mem_pool);
  			return -EIO;
  		}
  		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
  		if (rc != MBX_SUCCESS) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
  					"0352 Config MSI mailbox command "
  					"failed, mbxCmd x%x, mbxStatus x%x\n",
  					pmb->u.mb.mbxCommand,
  					pmb->u.mb.mbxStatus);
  			mempool_free(pmb, phba->mbox_mem_pool);
  			return -EIO;
  		}
  	}
  
  	spin_lock_irq(&phba->hbalock);
  	/* Initialize ERATT handling flag */
  	phba->hba_flag &= ~HBA_ERATT_HANDLED;
  
  	/* Enable appropriate host interrupts */
  	status = readl(phba->HCregaddr);
  	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
  	if (psli->num_rings > 0)
  		status |= HC_R0INT_ENA;
  	if (psli->num_rings > 1)
  		status |= HC_R1INT_ENA;
  	if (psli->num_rings > 2)
  		status |= HC_R2INT_ENA;
  	if (psli->num_rings > 3)
  		status |= HC_R3INT_ENA;
  
  	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
  	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
  		status &= ~(HC_R0INT_ENA);
  
  	writel(status, phba->HCregaddr);
  	readl(phba->HCregaddr); /* flush */
  	spin_unlock_irq(&phba->hbalock);
  
  	/* Set up ring-0 (ELS) timer */
  	timeout = phba->fc_ratov * 2;
  	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
  	/* Set up heart beat (HB) timer */
  	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
  	phba->hb_outstanding = 0;
  	phba->last_completion_time = jiffies;
  	/* Set up error attention (ERATT) polling timer */
  	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
  
  	if (phba->hba_flag & LINK_DISABLED) {
  		lpfc_printf_log(phba,
  			KERN_ERR, LOG_INIT,
  			"2598 Adapter Link is disabled.\n");
  		lpfc_down_link(phba, pmb);
  		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
  		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
  		if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
  			lpfc_printf_log(phba,
  			KERN_ERR, LOG_INIT,
  			"2599 Adapter failed to issue DOWN_LINK"
  			" mbox command rc 0x%x\n", rc);
  
  			mempool_free(pmb, phba->mbox_mem_pool);
  			return -EIO;
  		}
  	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
  		lpfc_init_link(phba, pmb, phba->cfg_topology,
  			phba->cfg_link_speed);
  		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
  		lpfc_set_loopback_flag(phba);
  		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
  		if (rc != MBX_SUCCESS) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0454 Adapter failed to init, mbxCmd x%x "
  				"INIT_LINK, mbxStatus x%x\n",
  				mb->mbxCommand, mb->mbxStatus);
  
  			/* Clear all interrupt enable conditions */
  			writel(0, phba->HCregaddr);
  			readl(phba->HCregaddr); /* flush */
  			/* Clear all pending interrupts */
  			writel(0xffffffff, phba->HAregaddr);
  			readl(phba->HAregaddr); /* flush */
  
  			phba->link_state = LPFC_HBA_ERROR;
  			if (rc != MBX_BUSY)
  				mempool_free(pmb, phba->mbox_mem_pool);
  			return -EIO;
  		}
  	}
  	/* MBOX buffer will be freed in mbox compl */
  	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return -ENOMEM;
  	}
  
  	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
  	pmb->mbox_cmpl = lpfc_config_async_cmpl;
  	pmb->vport = phba->pport;
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
  
  	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
  		lpfc_printf_log(phba,
  				KERN_ERR,
  				LOG_INIT,
  				"0456 Adapter failed to issue "
  				"ASYNCEVT_ENABLE mbox status x%x\n",
  				rc);
  		mempool_free(pmb, phba->mbox_mem_pool);
  	}
  
  	/* Get Option rom version */
  	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return -ENOMEM;
  	}
  
  	lpfc_dump_wakeup_param(phba, pmb);
  	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
  	pmb->vport = phba->pport;
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
  
  	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
  				"to get Option ROM version status x%x\n", rc);
  		mempool_free(pmb, phba->mbox_mem_pool);
  	}
  
  	return 0;
  }
  
  /**
   * lpfc_hba_init_link - Initialize the FC link
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine will issue the INIT_LINK mailbox command call.
   * It is available to other drivers through the lpfc_hba data
   * structure for use as a delayed link up mechanism with the
   * module parameter lpfc_suppress_link_up.
   *
   * Return code
   *		0 - success
   *		Any other value - error
   **/
  int
  lpfc_hba_init_link(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	LPFC_MBOXQ_t *pmb;
  	MAILBOX_t *mb;
  	int rc;
  
  	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return -ENOMEM;
  	}
  	mb = &pmb->u.mb;
  	pmb->vport = vport;
  
  	lpfc_init_link(phba, pmb, phba->cfg_topology,
  		phba->cfg_link_speed);
  	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
  	lpfc_set_loopback_flag(phba);
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
  	if (rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"0498 Adapter failed to init, mbxCmd x%x "
  			"INIT_LINK, mbxStatus x%x\n",
  			mb->mbxCommand, mb->mbxStatus);
  		/* Clear all interrupt enable conditions */
  		writel(0, phba->HCregaddr);
  		readl(phba->HCregaddr); /* flush */
  		/* Clear all pending interrupts */
  		writel(0xffffffff, phba->HAregaddr);
  		readl(phba->HAregaddr); /* flush */
  		phba->link_state = LPFC_HBA_ERROR;
  		if (rc != MBX_BUSY)
  			mempool_free(pmb, phba->mbox_mem_pool);
  		return -EIO;
  	}
  	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
  
  	return 0;
  }
  
  /**
   * lpfc_hba_down_link - this routine downs the FC link
   *
   * This routine will issue the DOWN_LINK mailbox command call.
   * It is available to other drivers through the lpfc_hba data
   * structure for use to stop the link.
   *
   * Return code
   *		0 - success
   *		Any other value - error
   **/
  int
  lpfc_hba_down_link(struct lpfc_hba *phba)
  {
  	LPFC_MBOXQ_t *pmb;
  	int rc;
  
  	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return -ENOMEM;
  	}
  
  	lpfc_printf_log(phba,
  		KERN_ERR, LOG_INIT,
  		"0491 Adapter Link is disabled.\n");
  	lpfc_down_link(phba, pmb);
  	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
  	if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
  		lpfc_printf_log(phba,
  		KERN_ERR, LOG_INIT,
  		"2522 Adapter failed to issue DOWN_LINK"
  		" mbox command rc 0x%x\n", rc);
  
  		mempool_free(pmb, phba->mbox_mem_pool);
  		return -EIO;
  	}
  	return 0;
  }
  
  /**
   * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
   * @phba: pointer to lpfc HBA data structure.
   *
   * This routine will do LPFC uninitialization before the HBA is reset when
   * bringing down the SLI Layer.
   *
   * Return codes
   *   0 - success.
   *   Any other value - error.
   **/
  int
  lpfc_hba_down_prep(struct lpfc_hba *phba)
  {
  	struct lpfc_vport **vports;
  	int i;
  
  	if (phba->sli_rev <= LPFC_SLI_REV3) {
  		/* Disable interrupts */
  		writel(0, phba->HCregaddr);
  		readl(phba->HCregaddr); /* flush */
  	}
  
  	if (phba->pport->load_flag & FC_UNLOADING)
  		lpfc_cleanup_discovery_resources(phba->pport);
  	else {
  		vports = lpfc_create_vport_work_array(phba);
  		if (vports != NULL)
  			for (i = 0; i <= phba->max_vports &&
  				vports[i] != NULL; i++)
  				lpfc_cleanup_discovery_resources(vports[i]);
  		lpfc_destroy_vport_work_array(phba, vports);
  	}
  	return 0;
  }
  
  /**
   * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
   * @phba: pointer to lpfc HBA data structure.
   *
   * This routine will do uninitialization after the HBA is reset when bring
   * down the SLI Layer.
   *
   * Return codes
   *   0 - success.
   *   Any other value - error.
   **/
  static int
  lpfc_hba_down_post_s3(struct lpfc_hba *phba)
  {
  	struct lpfc_sli *psli = &phba->sli;
  	struct lpfc_sli_ring *pring;
  	struct lpfc_dmabuf *mp, *next_mp;
  	LIST_HEAD(completions);
  	int i;
  
  	if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
  		lpfc_sli_hbqbuf_free_all(phba);
  	else {
  		/* Cleanup preposted buffers on the ELS ring */
  		pring = &psli->ring[LPFC_ELS_RING];
  		list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
  			list_del(&mp->list);
  			pring->postbufq_cnt--;
  			lpfc_mbuf_free(phba, mp->virt, mp->phys);
  			kfree(mp);
  		}
  	}
  
  	spin_lock_irq(&phba->hbalock);
  	for (i = 0; i < psli->num_rings; i++) {
  		pring = &psli->ring[i];
  
  		/* At this point in time the HBA is either reset or DOA. Either
  		 * way, nothing should be on txcmplq as it will NEVER complete.
  		 */
  		list_splice_init(&pring->txcmplq, &completions);
  		pring->txcmplq_cnt = 0;
  		spin_unlock_irq(&phba->hbalock);
  
  		/* Cancel all the IOCBs from the completions list */
  		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
  				      IOERR_SLI_ABORTED);
  
  		lpfc_sli_abort_iocb_ring(phba, pring);
  		spin_lock_irq(&phba->hbalock);
  	}
  	spin_unlock_irq(&phba->hbalock);
  
  	return 0;
  }
  /**
   * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
   * @phba: pointer to lpfc HBA data structure.
   *
   * This routine will do uninitialization after the HBA is reset when bring
   * down the SLI Layer.
   *
   * Return codes
   *   0 - success.
   *   Any other value - error.
   **/
  static int
  lpfc_hba_down_post_s4(struct lpfc_hba *phba)
  {
  	struct lpfc_scsi_buf *psb, *psb_next;
  	LIST_HEAD(aborts);
  	int ret;
  	unsigned long iflag = 0;
  	struct lpfc_sglq *sglq_entry = NULL;
  
  	ret = lpfc_hba_down_post_s3(phba);
  	if (ret)
  		return ret;
  	/* At this point in time the HBA is either reset or DOA. Either
  	 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
  	 * on the lpfc_sgl_list so that it can either be freed if the
  	 * driver is unloading or reposted if the driver is restarting
  	 * the port.
  	 */
  	spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
  					/* scsl_buf_list */
  	/* abts_sgl_list_lock required because worker thread uses this
  	 * list.
  	 */
  	spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
  	list_for_each_entry(sglq_entry,
  		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
  		sglq_entry->state = SGL_FREED;
  
  	list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
  			&phba->sli4_hba.lpfc_sgl_list);
  	spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
  	/* abts_scsi_buf_list_lock required because worker thread uses this
  	 * list.
  	 */
  	spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
  	list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
  			&aborts);
  	spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
  	spin_unlock_irq(&phba->hbalock);
  
  	list_for_each_entry_safe(psb, psb_next, &aborts, list) {
  		psb->pCmd = NULL;
  		psb->status = IOSTAT_SUCCESS;
  	}
  	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
  	list_splice(&aborts, &phba->lpfc_scsi_buf_list);
  	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
  	return 0;
  }
  
  /**
   * lpfc_hba_down_post - Wrapper func for hba down post routine
   * @phba: pointer to lpfc HBA data structure.
   *
   * This routine wraps the actual SLI3 or SLI4 routine for performing
   * uninitialization after the HBA is reset when bring down the SLI Layer.
   *
   * Return codes
   *   0 - success.
   *   Any other value - error.
   **/
  int
  lpfc_hba_down_post(struct lpfc_hba *phba)
  {
  	return (*phba->lpfc_hba_down_post)(phba);
  }
  
  /**
   * lpfc_hb_timeout - The HBA-timer timeout handler
   * @ptr: unsigned long holds the pointer to lpfc hba data structure.
   *
   * This is the HBA-timer timeout handler registered to the lpfc driver. When
   * this timer fires, a HBA timeout event shall be posted to the lpfc driver
   * work-port-events bitmap and the worker thread is notified. This timeout
   * event will be used by the worker thread to invoke the actual timeout
   * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
   * be performed in the timeout handler and the HBA timeout event bit shall
   * be cleared by the worker thread after it has taken the event bitmap out.
   **/
  static void
  lpfc_hb_timeout(unsigned long ptr)
  {
  	struct lpfc_hba *phba;
  	uint32_t tmo_posted;
  	unsigned long iflag;
  
  	phba = (struct lpfc_hba *)ptr;
  
  	/* Check for heart beat timeout conditions */
  	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
  	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
  	if (!tmo_posted)
  		phba->pport->work_port_events |= WORKER_HB_TMO;
  	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
  
  	/* Tell the worker thread there is work to do */
  	if (!tmo_posted)
  		lpfc_worker_wake_up(phba);
  	return;
  }
  
  /**
   * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
   * @phba: pointer to lpfc hba data structure.
   * @pmboxq: pointer to the driver internal queue element for mailbox command.
   *
   * This is the callback function to the lpfc heart-beat mailbox command.
   * If configured, the lpfc driver issues the heart-beat mailbox command to
   * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
   * heart-beat mailbox command is issued, the driver shall set up heart-beat
   * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
   * heart-beat outstanding state. Once the mailbox command comes back and
   * no error conditions detected, the heart-beat mailbox command timer is
   * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
   * state is cleared for the next heart-beat. If the timer expired with the
   * heart-beat outstanding state set, the driver will put the HBA offline.
   **/
  static void
  lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
  {
  	unsigned long drvr_flag;
  
  	spin_lock_irqsave(&phba->hbalock, drvr_flag);
  	phba->hb_outstanding = 0;
  	spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
  
  	/* Check and reset heart-beat timer is necessary */
  	mempool_free(pmboxq, phba->mbox_mem_pool);
  	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
  		!(phba->link_state == LPFC_HBA_ERROR) &&
  		!(phba->pport->load_flag & FC_UNLOADING))
  		mod_timer(&phba->hb_tmofunc,
  			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
  	return;
  }
  
  /**
   * lpfc_hb_timeout_handler - The HBA-timer timeout handler
   * @phba: pointer to lpfc hba data structure.
   *
   * This is the actual HBA-timer timeout handler to be invoked by the worker
   * thread whenever the HBA timer fired and HBA-timeout event posted. This
   * handler performs any periodic operations needed for the device. If such
   * periodic event has already been attended to either in the interrupt handler
   * or by processing slow-ring or fast-ring events within the HBA-timer
   * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
   * the timer for the next timeout period. If lpfc heart-beat mailbox command
   * is configured and there is no heart-beat mailbox command outstanding, a
   * heart-beat mailbox is issued and timer set properly. Otherwise, if there
   * has been a heart-beat mailbox command outstanding, the HBA shall be put
   * to offline.
   **/
  void
  lpfc_hb_timeout_handler(struct lpfc_hba *phba)
  {
  	struct lpfc_vport **vports;
  	LPFC_MBOXQ_t *pmboxq;
  	struct lpfc_dmabuf *buf_ptr;
  	int retval, i;
  	struct lpfc_sli *psli = &phba->sli;
  	LIST_HEAD(completions);
  
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL)
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
  			lpfc_rcv_seq_check_edtov(vports[i]);
  	lpfc_destroy_vport_work_array(phba, vports);
  
  	if ((phba->link_state == LPFC_HBA_ERROR) ||
  		(phba->pport->load_flag & FC_UNLOADING) ||
  		(phba->pport->fc_flag & FC_OFFLINE_MODE))
  		return;
  
  	spin_lock_irq(&phba->pport->work_port_lock);
  
  	if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
  		jiffies)) {
  		spin_unlock_irq(&phba->pport->work_port_lock);
  		if (!phba->hb_outstanding)
  			mod_timer(&phba->hb_tmofunc,
  				jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
  		else
  			mod_timer(&phba->hb_tmofunc,
  				jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
  		return;
  	}
  	spin_unlock_irq(&phba->pport->work_port_lock);
  
  	if (phba->elsbuf_cnt &&
  		(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
  		spin_lock_irq(&phba->hbalock);
  		list_splice_init(&phba->elsbuf, &completions);
  		phba->elsbuf_cnt = 0;
  		phba->elsbuf_prev_cnt = 0;
  		spin_unlock_irq(&phba->hbalock);
  
  		while (!list_empty(&completions)) {
  			list_remove_head(&completions, buf_ptr,
  				struct lpfc_dmabuf, list);
  			lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
  			kfree(buf_ptr);
  		}
  	}
  	phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
  
  	/* If there is no heart beat outstanding, issue a heartbeat command */
  	if (phba->cfg_enable_hba_heartbeat) {
  		if (!phba->hb_outstanding) {
  			pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
  			if (!pmboxq) {
  				mod_timer(&phba->hb_tmofunc,
  					  jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
  				return;
  			}
  
  			lpfc_heart_beat(phba, pmboxq);
  			pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
  			pmboxq->vport = phba->pport;
  			retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
  
  			if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
  				mempool_free(pmboxq, phba->mbox_mem_pool);
  				mod_timer(&phba->hb_tmofunc,
  					  jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
  				return;
  			}
  			mod_timer(&phba->hb_tmofunc,
  				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
  			phba->hb_outstanding = 1;
  			return;
  		} else {
  			/*
  			* If heart beat timeout called with hb_outstanding set
  			* we need to take the HBA offline.
  			*/
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0459 Adapter heartbeat failure, "
  					"taking this port offline.\n");
  
  			spin_lock_irq(&phba->hbalock);
  			psli->sli_flag &= ~LPFC_SLI_ACTIVE;
  			spin_unlock_irq(&phba->hbalock);
  
  			lpfc_offline_prep(phba);
  			lpfc_offline(phba);
  			lpfc_unblock_mgmt_io(phba);
  			phba->link_state = LPFC_HBA_ERROR;
  			lpfc_hba_down_post(phba);
  		}
  	}
  }
  
  /**
   * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is called to bring the HBA offline when HBA hardware error
   * other than Port Error 6 has been detected.
   **/
  static void
  lpfc_offline_eratt(struct lpfc_hba *phba)
  {
  	struct lpfc_sli   *psli = &phba->sli;
  
  	spin_lock_irq(&phba->hbalock);
  	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
  	spin_unlock_irq(&phba->hbalock);
  	lpfc_offline_prep(phba);
  
  	lpfc_offline(phba);
  	lpfc_reset_barrier(phba);
  	spin_lock_irq(&phba->hbalock);
  	lpfc_sli_brdreset(phba);
  	spin_unlock_irq(&phba->hbalock);
  	lpfc_hba_down_post(phba);
  	lpfc_sli_brdready(phba, HS_MBRDY);
  	lpfc_unblock_mgmt_io(phba);
  	phba->link_state = LPFC_HBA_ERROR;
  	return;
  }
  
  /**
   * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is called to bring a SLI4 HBA offline when HBA hardware error
   * other than Port Error 6 has been detected.
   **/
  static void
  lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
  {
  	lpfc_offline_prep(phba);
  	lpfc_offline(phba);
  	lpfc_sli4_brdreset(phba);
  	lpfc_hba_down_post(phba);
  	lpfc_sli4_post_status_check(phba);
  	lpfc_unblock_mgmt_io(phba);
  	phba->link_state = LPFC_HBA_ERROR;
  }
  
  /**
   * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to handle the deferred HBA hardware error
   * conditions. This type of error is indicated by HBA by setting ER1
   * and another ER bit in the host status register. The driver will
   * wait until the ER1 bit clears before handling the error condition.
   **/
  static void
  lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
  {
  	uint32_t old_host_status = phba->work_hs;
  	struct lpfc_sli_ring  *pring;
  	struct lpfc_sli *psli = &phba->sli;
  
  	/* If the pci channel is offline, ignore possible errors,
  	 * since we cannot communicate with the pci card anyway.
  	 */
  	if (pci_channel_offline(phba->pcidev)) {
  		spin_lock_irq(&phba->hbalock);
  		phba->hba_flag &= ~DEFER_ERATT;
  		spin_unlock_irq(&phba->hbalock);
  		return;
  	}
  
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  		"0479 Deferred Adapter Hardware Error "
  		"Data: x%x x%x x%x\n",
  		phba->work_hs,
  		phba->work_status[0], phba->work_status[1]);
  
  	spin_lock_irq(&phba->hbalock);
  	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
  	spin_unlock_irq(&phba->hbalock);
  
  
  	/*
  	 * Firmware stops when it triggred erratt. That could cause the I/Os
  	 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
  	 * SCSI layer retry it after re-establishing link.
  	 */
  	pring = &psli->ring[psli->fcp_ring];
  	lpfc_sli_abort_iocb_ring(phba, pring);
  
  	/*
  	 * There was a firmware error. Take the hba offline and then
  	 * attempt to restart it.
  	 */
  	lpfc_offline_prep(phba);
  	lpfc_offline(phba);
  
  	/* Wait for the ER1 bit to clear.*/
  	while (phba->work_hs & HS_FFER1) {
  		msleep(100);
  		phba->work_hs = readl(phba->HSregaddr);
  		/* If driver is unloading let the worker thread continue */
  		if (phba->pport->load_flag & FC_UNLOADING) {
  			phba->work_hs = 0;
  			break;
  		}
  	}
  
  	/*
  	 * This is to ptrotect against a race condition in which
  	 * first write to the host attention register clear the
  	 * host status register.
  	 */
  	if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
  		phba->work_hs = old_host_status & ~HS_FFER1;
  
  	spin_lock_irq(&phba->hbalock);
  	phba->hba_flag &= ~DEFER_ERATT;
  	spin_unlock_irq(&phba->hbalock);
  	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
  	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
  }
  
  static void
  lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
  {
  	struct lpfc_board_event_header board_event;
  	struct Scsi_Host *shost;
  
  	board_event.event_type = FC_REG_BOARD_EVENT;
  	board_event.subcategory = LPFC_EVENT_PORTINTERR;
  	shost = lpfc_shost_from_vport(phba->pport);
  	fc_host_post_vendor_event(shost, fc_get_event_number(),
  				  sizeof(board_event),
  				  (char *) &board_event,
  				  LPFC_NL_VENDOR_ID);
  }
  
  /**
   * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to handle the following HBA hardware error
   * conditions:
   * 1 - HBA error attention interrupt
   * 2 - DMA ring index out of range
   * 3 - Mailbox command came back as unknown
   **/
  static void
  lpfc_handle_eratt_s3(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	struct lpfc_sli   *psli = &phba->sli;
  	struct lpfc_sli_ring  *pring;
  	uint32_t event_data;
  	unsigned long temperature;
  	struct temp_event temp_event_data;
  	struct Scsi_Host  *shost;
  
  	/* If the pci channel is offline, ignore possible errors,
  	 * since we cannot communicate with the pci card anyway.
  	 */
  	if (pci_channel_offline(phba->pcidev)) {
  		spin_lock_irq(&phba->hbalock);
  		phba->hba_flag &= ~DEFER_ERATT;
  		spin_unlock_irq(&phba->hbalock);
  		return;
  	}
  
  	/* If resets are disabled then leave the HBA alone and return */
  	if (!phba->cfg_enable_hba_reset)
  		return;
  
  	/* Send an internal error event to mgmt application */
  	lpfc_board_errevt_to_mgmt(phba);
  
  	if (phba->hba_flag & DEFER_ERATT)
  		lpfc_handle_deferred_eratt(phba);
  
  	if (phba->work_hs & HS_FFER6) {
  		/* Re-establishing Link */
  		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
  				"1301 Re-establishing Link "
  				"Data: x%x x%x x%x\n",
  				phba->work_hs,
  				phba->work_status[0], phba->work_status[1]);
  
  		spin_lock_irq(&phba->hbalock);
  		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
  		spin_unlock_irq(&phba->hbalock);
  
  		/*
  		* Firmware stops when it triggled erratt with HS_FFER6.
  		* That could cause the I/Os dropped by the firmware.
  		* Error iocb (I/O) on txcmplq and let the SCSI layer
  		* retry it after re-establishing link.
  		*/
  		pring = &psli->ring[psli->fcp_ring];
  		lpfc_sli_abort_iocb_ring(phba, pring);
  
  		/*
  		 * There was a firmware error.  Take the hba offline and then
  		 * attempt to restart it.
  		 */
  		lpfc_offline_prep(phba);
  		lpfc_offline(phba);
  		lpfc_sli_brdrestart(phba);
  		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
  			lpfc_unblock_mgmt_io(phba);
  			return;
  		}
  		lpfc_unblock_mgmt_io(phba);
  	} else if (phba->work_hs & HS_CRIT_TEMP) {
  		temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
  		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
  		temp_event_data.event_code = LPFC_CRIT_TEMP;
  		temp_event_data.data = (uint32_t)temperature;
  
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0406 Adapter maximum temperature exceeded "
  				"(%ld), taking this port offline "
  				"Data: x%x x%x x%x\n",
  				temperature, phba->work_hs,
  				phba->work_status[0], phba->work_status[1]);
  
  		shost = lpfc_shost_from_vport(phba->pport);
  		fc_host_post_vendor_event(shost, fc_get_event_number(),
  					  sizeof(temp_event_data),
  					  (char *) &temp_event_data,
  					  SCSI_NL_VID_TYPE_PCI
  					  | PCI_VENDOR_ID_EMULEX);
  
  		spin_lock_irq(&phba->hbalock);
  		phba->over_temp_state = HBA_OVER_TEMP;
  		spin_unlock_irq(&phba->hbalock);
  		lpfc_offline_eratt(phba);
  
  	} else {
  		/* The if clause above forces this code path when the status
  		 * failure is a value other than FFER6. Do not call the offline
  		 * twice. This is the adapter hardware error path.
  		 */
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0457 Adapter Hardware Error "
  				"Data: x%x x%x x%x\n",
  				phba->work_hs,
  				phba->work_status[0], phba->work_status[1]);
  
  		event_data = FC_REG_DUMP_EVENT;
  		shost = lpfc_shost_from_vport(vport);
  		fc_host_post_vendor_event(shost, fc_get_event_number(),
  				sizeof(event_data), (char *) &event_data,
  				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
  
  		lpfc_offline_eratt(phba);
  	}
  	return;
  }
  
  /**
   * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to handle the SLI4 HBA hardware error attention
   * conditions.
   **/
  static void
  lpfc_handle_eratt_s4(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	uint32_t event_data;
  	struct Scsi_Host *shost;
  
  	/* If the pci channel is offline, ignore possible errors, since
  	 * we cannot communicate with the pci card anyway.
  	 */
  	if (pci_channel_offline(phba->pcidev))
  		return;
  	/* If resets are disabled then leave the HBA alone and return */
  	if (!phba->cfg_enable_hba_reset)
  		return;
  
  	/* Send an internal error event to mgmt application */
  	lpfc_board_errevt_to_mgmt(phba);
  
  	/* For now, the actual action for SLI4 device handling is not
  	 * specified yet, just treated it as adaptor hardware failure
  	 */
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
  			phba->work_status[0], phba->work_status[1]);
  
  	event_data = FC_REG_DUMP_EVENT;
  	shost = lpfc_shost_from_vport(vport);
  	fc_host_post_vendor_event(shost, fc_get_event_number(),
  				  sizeof(event_data), (char *) &event_data,
  				  SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
  
  	lpfc_sli4_offline_eratt(phba);
  }
  
  /**
   * lpfc_handle_eratt - Wrapper func for handling hba error attention
   * @phba: pointer to lpfc HBA data structure.
   *
   * This routine wraps the actual SLI3 or SLI4 hba error attention handling
   * routine from the API jump table function pointer from the lpfc_hba struct.
   *
   * Return codes
   *   0 - success.
   *   Any other value - error.
   **/
  void
  lpfc_handle_eratt(struct lpfc_hba *phba)
  {
  	(*phba->lpfc_handle_eratt)(phba);
  }
  
  /**
   * lpfc_handle_latt - The HBA link event handler
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked from the worker thread to handle a HBA host
   * attention link event.
   **/
  void
  lpfc_handle_latt(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	struct lpfc_sli   *psli = &phba->sli;
  	LPFC_MBOXQ_t *pmb;
  	volatile uint32_t control;
  	struct lpfc_dmabuf *mp;
  	int rc = 0;
  
  	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		rc = 1;
  		goto lpfc_handle_latt_err_exit;
  	}
  
  	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
  	if (!mp) {
  		rc = 2;
  		goto lpfc_handle_latt_free_pmb;
  	}
  
  	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
  	if (!mp->virt) {
  		rc = 3;
  		goto lpfc_handle_latt_free_mp;
  	}
  
  	/* Cleanup any outstanding ELS commands */
  	lpfc_els_flush_all_cmd(phba);
  
  	psli->slistat.link_event++;
  	lpfc_read_la(phba, pmb, mp);
  	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
  	pmb->vport = vport;
  	/* Block ELS IOCBs until we have processed this mbox command */
  	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
  	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
  	if (rc == MBX_NOT_FINISHED) {
  		rc = 4;
  		goto lpfc_handle_latt_free_mbuf;
  	}
  
  	/* Clear Link Attention in HA REG */
  	spin_lock_irq(&phba->hbalock);
  	writel(HA_LATT, phba->HAregaddr);
  	readl(phba->HAregaddr); /* flush */
  	spin_unlock_irq(&phba->hbalock);
  
  	return;
  
  lpfc_handle_latt_free_mbuf:
  	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
  	lpfc_mbuf_free(phba, mp->virt, mp->phys);
  lpfc_handle_latt_free_mp:
  	kfree(mp);
  lpfc_handle_latt_free_pmb:
  	mempool_free(pmb, phba->mbox_mem_pool);
  lpfc_handle_latt_err_exit:
  	/* Enable Link attention interrupts */
  	spin_lock_irq(&phba->hbalock);
  	psli->sli_flag |= LPFC_PROCESS_LA;
  	control = readl(phba->HCregaddr);
  	control |= HC_LAINT_ENA;
  	writel(control, phba->HCregaddr);
  	readl(phba->HCregaddr); /* flush */
  
  	/* Clear Link Attention in HA REG */
  	writel(HA_LATT, phba->HAregaddr);
  	readl(phba->HAregaddr); /* flush */
  	spin_unlock_irq(&phba->hbalock);
  	lpfc_linkdown(phba);
  	phba->link_state = LPFC_HBA_ERROR;
  
  	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
  		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
  
  	return;
  }
  
  /**
   * lpfc_parse_vpd - Parse VPD (Vital Product Data)
   * @phba: pointer to lpfc hba data structure.
   * @vpd: pointer to the vital product data.
   * @len: length of the vital product data in bytes.
   *
   * This routine parses the Vital Product Data (VPD). The VPD is treated as
   * an array of characters. In this routine, the ModelName, ProgramType, and
   * ModelDesc, etc. fields of the phba data structure will be populated.
   *
   * Return codes
   *   0 - pointer to the VPD passed in is NULL
   *   1 - success
   **/
  int
  lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
  {
  	uint8_t lenlo, lenhi;
  	int Length;
  	int i, j;
  	int finished = 0;
  	int index = 0;
  
  	if (!vpd)
  		return 0;
  
  	/* Vital Product */
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"0455 Vital Product Data: x%x x%x x%x x%x\n",
  			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
  			(uint32_t) vpd[3]);
  	while (!finished && (index < (len - 4))) {
  		switch (vpd[index]) {
  		case 0x82:
  		case 0x91:
  			index += 1;
  			lenlo = vpd[index];
  			index += 1;
  			lenhi = vpd[index];
  			index += 1;
  			i = ((((unsigned short)lenhi) << 8) + lenlo);
  			index += i;
  			break;
  		case 0x90:
  			index += 1;
  			lenlo = vpd[index];
  			index += 1;
  			lenhi = vpd[index];
  			index += 1;
  			Length = ((((unsigned short)lenhi) << 8) + lenlo);
  			if (Length > len - index)
  				Length = len - index;
  			while (Length > 0) {
  			/* Look for Serial Number */
  			if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
  				index += 2;
  				i = vpd[index];
  				index += 1;
  				j = 0;
  				Length -= (3+i);
  				while(i--) {
  					phba->SerialNumber[j++] = vpd[index++];
  					if (j == 31)
  						break;
  				}
  				phba->SerialNumber[j] = 0;
  				continue;
  			}
  			else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
  				phba->vpd_flag |= VPD_MODEL_DESC;
  				index += 2;
  				i = vpd[index];
  				index += 1;
  				j = 0;
  				Length -= (3+i);
  				while(i--) {
  					phba->ModelDesc[j++] = vpd[index++];
  					if (j == 255)
  						break;
  				}
  				phba->ModelDesc[j] = 0;
  				continue;
  			}
  			else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
  				phba->vpd_flag |= VPD_MODEL_NAME;
  				index += 2;
  				i = vpd[index];
  				index += 1;
  				j = 0;
  				Length -= (3+i);
  				while(i--) {
  					phba->ModelName[j++] = vpd[index++];
  					if (j == 79)
  						break;
  				}
  				phba->ModelName[j] = 0;
  				continue;
  			}
  			else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
  				phba->vpd_flag |= VPD_PROGRAM_TYPE;
  				index += 2;
  				i = vpd[index];
  				index += 1;
  				j = 0;
  				Length -= (3+i);
  				while(i--) {
  					phba->ProgramType[j++] = vpd[index++];
  					if (j == 255)
  						break;
  				}
  				phba->ProgramType[j] = 0;
  				continue;
  			}
  			else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
  				phba->vpd_flag |= VPD_PORT;
  				index += 2;
  				i = vpd[index];
  				index += 1;
  				j = 0;
  				Length -= (3+i);
  				while(i--) {
  				phba->Port[j++] = vpd[index++];
  				if (j == 19)
  					break;
  				}
  				phba->Port[j] = 0;
  				continue;
  			}
  			else {
  				index += 2;
  				i = vpd[index];
  				index += 1;
  				index += i;
  				Length -= (3 + i);
  			}
  		}
  		finished = 0;
  		break;
  		case 0x78:
  			finished = 1;
  			break;
  		default:
  			index ++;
  			break;
  		}
  	}
  
  	return(1);
  }
  
  /**
   * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
   * @phba: pointer to lpfc hba data structure.
   * @mdp: pointer to the data structure to hold the derived model name.
   * @descp: pointer to the data structure to hold the derived description.
   *
   * This routine retrieves HBA's description based on its registered PCI device
   * ID. The @descp passed into this function points to an array of 256 chars. It
   * shall be returned with the model name, maximum speed, and the host bus type.
   * The @mdp passed into this function points to an array of 80 chars. When the
   * function returns, the @mdp will be filled with the model name.
   **/
  static void
  lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
  {
  	lpfc_vpd_t *vp;
  	uint16_t dev_id = phba->pcidev->device;
  	int max_speed;
  	int GE = 0;
  	int oneConnect = 0; /* default is not a oneConnect */
  	struct {
  		char *name;
  		char *bus;
  		char *function;
  	} m = {"<Unknown>", "", ""};
  
  	if (mdp && mdp[0] != '\0'
  		&& descp && descp[0] != '\0')
  		return;
  
  	if (phba->lmt & LMT_10Gb)
  		max_speed = 10;
  	else if (phba->lmt & LMT_8Gb)
  		max_speed = 8;
  	else if (phba->lmt & LMT_4Gb)
  		max_speed = 4;
  	else if (phba->lmt & LMT_2Gb)
  		max_speed = 2;
  	else
  		max_speed = 1;
  
  	vp = &phba->vpd;
  
  	switch (dev_id) {
  	case PCI_DEVICE_ID_FIREFLY:
  		m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SUPERFLY:
  		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
  			m = (typeof(m)){"LP7000", "PCI",
  					"Fibre Channel Adapter"};
  		else
  			m = (typeof(m)){"LP7000E", "PCI",
  					"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_DRAGONFLY:
  		m = (typeof(m)){"LP8000", "PCI",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_CENTAUR:
  		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
  			m = (typeof(m)){"LP9002", "PCI",
  					"Fibre Channel Adapter"};
  		else
  			m = (typeof(m)){"LP9000", "PCI",
  					"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_RFLY:
  		m = (typeof(m)){"LP952", "PCI",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_PEGASUS:
  		m = (typeof(m)){"LP9802", "PCI-X",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_THOR:
  		m = (typeof(m)){"LP10000", "PCI-X",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_VIPER:
  		m = (typeof(m)){"LPX1000",  "PCI-X",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_PFLY:
  		m = (typeof(m)){"LP982", "PCI-X",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_TFLY:
  		m = (typeof(m)){"LP1050", "PCI-X",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_HELIOS:
  		m = (typeof(m)){"LP11000", "PCI-X2",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_HELIOS_SCSP:
  		m = (typeof(m)){"LP11000-SP", "PCI-X2",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_HELIOS_DCSP:
  		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_NEPTUNE:
  		m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_NEPTUNE_SCSP:
  		m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_NEPTUNE_DCSP:
  		m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_BMID:
  		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_BSMB:
  		m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_ZEPHYR:
  		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_ZEPHYR_SCSP:
  		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_ZEPHYR_DCSP:
  		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
  		GE = 1;
  		break;
  	case PCI_DEVICE_ID_ZMID:
  		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_ZSMB:
  		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_LP101:
  		m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_LP10000S:
  		m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_LP11000S:
  		m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_LPE11000S:
  		m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SAT:
  		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SAT_MID:
  		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SAT_SMB:
  		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SAT_DCSP:
  		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SAT_SCSP:
  		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_SAT_S:
  		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_HORNET:
  		m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
  		GE = 1;
  		break;
  	case PCI_DEVICE_ID_PROTEUS_VF:
  		m = (typeof(m)){"LPev12000", "PCIe IOV",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_PROTEUS_PF:
  		m = (typeof(m)){"LPev12000", "PCIe IOV",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_PROTEUS_S:
  		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
  				"Fibre Channel Adapter"};
  		break;
  	case PCI_DEVICE_ID_TIGERSHARK:
  		oneConnect = 1;
  		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
  		break;
  	case PCI_DEVICE_ID_TOMCAT:
  		oneConnect = 1;
  		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
  		break;
  	case PCI_DEVICE_ID_FALCON:
  		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
  				"EmulexSecure Fibre"};
  		break;
  	default:
  		m = (typeof(m)){"Unknown", "", ""};
  		break;
  	}
  
  	if (mdp && mdp[0] == '\0')
  		snprintf(mdp, 79,"%s", m.name);
  	/* oneConnect hba requires special processing, they are all initiators
  	 * and we put the port number on the end
  	 */
  	if (descp && descp[0] == '\0') {
  		if (oneConnect)
  			snprintf(descp, 255,
  				"Emulex OneConnect %s, %s Initiator, Port %s",
  				m.name, m.function,
  				phba->Port);
  		else
  			snprintf(descp, 255,
  				"Emulex %s %d%s %s %s",
  				m.name, max_speed, (GE) ? "GE" : "Gb",
  				m.bus, m.function);
  	}
  }
  
  /**
   * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
   * @phba: pointer to lpfc hba data structure.
   * @pring: pointer to a IOCB ring.
   * @cnt: the number of IOCBs to be posted to the IOCB ring.
   *
   * This routine posts a given number of IOCBs with the associated DMA buffer
   * descriptors specified by the cnt argument to the given IOCB ring.
   *
   * Return codes
   *   The number of IOCBs NOT able to be posted to the IOCB ring.
   **/
  int
  lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
  {
  	IOCB_t *icmd;
  	struct lpfc_iocbq *iocb;
  	struct lpfc_dmabuf *mp1, *mp2;
  
  	cnt += pring->missbufcnt;
  
  	/* While there are buffers to post */
  	while (cnt > 0) {
  		/* Allocate buffer for  command iocb */
  		iocb = lpfc_sli_get_iocbq(phba);
  		if (iocb == NULL) {
  			pring->missbufcnt = cnt;
  			return cnt;
  		}
  		icmd = &iocb->iocb;
  
  		/* 2 buffers can be posted per command */
  		/* Allocate buffer to post */
  		mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
  		if (mp1)
  		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
  		if (!mp1 || !mp1->virt) {
  			kfree(mp1);
  			lpfc_sli_release_iocbq(phba, iocb);
  			pring->missbufcnt = cnt;
  			return cnt;
  		}
  
  		INIT_LIST_HEAD(&mp1->list);
  		/* Allocate buffer to post */
  		if (cnt > 1) {
  			mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
  			if (mp2)
  				mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
  							    &mp2->phys);
  			if (!mp2 || !mp2->virt) {
  				kfree(mp2);
  				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
  				kfree(mp1);
  				lpfc_sli_release_iocbq(phba, iocb);
  				pring->missbufcnt = cnt;
  				return cnt;
  			}
  
  			INIT_LIST_HEAD(&mp2->list);
  		} else {
  			mp2 = NULL;
  		}
  
  		icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
  		icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
  		icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
  		icmd->ulpBdeCount = 1;
  		cnt--;
  		if (mp2) {
  			icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
  			icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
  			icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
  			cnt--;
  			icmd->ulpBdeCount = 2;
  		}
  
  		icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
  		icmd->ulpLe = 1;
  
  		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
  		    IOCB_ERROR) {
  			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
  			kfree(mp1);
  			cnt++;
  			if (mp2) {
  				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
  				kfree(mp2);
  				cnt++;
  			}
  			lpfc_sli_release_iocbq(phba, iocb);
  			pring->missbufcnt = cnt;
  			return cnt;
  		}
  		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
  		if (mp2)
  			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
  	}
  	pring->missbufcnt = 0;
  	return 0;
  }
  
  /**
   * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine posts initial receive IOCB buffers to the ELS ring. The
   * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
   * set to 64 IOCBs.
   *
   * Return codes
   *   0 - success (currently always success)
   **/
  static int
  lpfc_post_rcv_buf(struct lpfc_hba *phba)
  {
  	struct lpfc_sli *psli = &phba->sli;
  
  	/* Ring 0, ELS / CT buffers */
  	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
  	/* Ring 2 - FCP no buffers needed */
  
  	return 0;
  }
  
  #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
  
  /**
   * lpfc_sha_init - Set up initial array of hash table entries
   * @HashResultPointer: pointer to an array as hash table.
   *
   * This routine sets up the initial values to the array of hash table entries
   * for the LC HBAs.
   **/
  static void
  lpfc_sha_init(uint32_t * HashResultPointer)
  {
  	HashResultPointer[0] = 0x67452301;
  	HashResultPointer[1] = 0xEFCDAB89;
  	HashResultPointer[2] = 0x98BADCFE;
  	HashResultPointer[3] = 0x10325476;
  	HashResultPointer[4] = 0xC3D2E1F0;
  }
  
  /**
   * lpfc_sha_iterate - Iterate initial hash table with the working hash table
   * @HashResultPointer: pointer to an initial/result hash table.
   * @HashWorkingPointer: pointer to an working hash table.
   *
   * This routine iterates an initial hash table pointed by @HashResultPointer
   * with the values from the working hash table pointeed by @HashWorkingPointer.
   * The results are putting back to the initial hash table, returned through
   * the @HashResultPointer as the result hash table.
   **/
  static void
  lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
  {
  	int t;
  	uint32_t TEMP;
  	uint32_t A, B, C, D, E;
  	t = 16;
  	do {
  		HashWorkingPointer[t] =
  		    S(1,
  		      HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
  								     8] ^
  		      HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
  	} while (++t <= 79);
  	t = 0;
  	A = HashResultPointer[0];
  	B = HashResultPointer[1];
  	C = HashResultPointer[2];
  	D = HashResultPointer[3];
  	E = HashResultPointer[4];
  
  	do {
  		if (t < 20) {
  			TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
  		} else if (t < 40) {
  			TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
  		} else if (t < 60) {
  			TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
  		} else {
  			TEMP = (B ^ C ^ D) + 0xCA62C1D6;
  		}
  		TEMP += S(5, A) + E + HashWorkingPointer[t];
  		E = D;
  		D = C;
  		C = S(30, B);
  		B = A;
  		A = TEMP;
  	} while (++t <= 79);
  
  	HashResultPointer[0] += A;
  	HashResultPointer[1] += B;
  	HashResultPointer[2] += C;
  	HashResultPointer[3] += D;
  	HashResultPointer[4] += E;
  
  }
  
  /**
   * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
   * @RandomChallenge: pointer to the entry of host challenge random number array.
   * @HashWorking: pointer to the entry of the working hash array.
   *
   * This routine calculates the working hash array referred by @HashWorking
   * from the challenge random numbers associated with the host, referred by
   * @RandomChallenge. The result is put into the entry of the working hash
   * array and returned by reference through @HashWorking.
   **/
  static void
  lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
  {
  	*HashWorking = (*RandomChallenge ^ *HashWorking);
  }
  
  /**
   * lpfc_hba_init - Perform special handling for LC HBA initialization
   * @phba: pointer to lpfc hba data structure.
   * @hbainit: pointer to an array of unsigned 32-bit integers.
   *
   * This routine performs the special handling for LC HBA initialization.
   **/
  void
  lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
  {
  	int t;
  	uint32_t *HashWorking;
  	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
  
  	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
  	if (!HashWorking)
  		return;
  
  	HashWorking[0] = HashWorking[78] = *pwwnn++;
  	HashWorking[1] = HashWorking[79] = *pwwnn;
  
  	for (t = 0; t < 7; t++)
  		lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
  
  	lpfc_sha_init(hbainit);
  	lpfc_sha_iterate(hbainit, HashWorking);
  	kfree(HashWorking);
  }
  
  /**
   * lpfc_cleanup - Performs vport cleanups before deleting a vport
   * @vport: pointer to a virtual N_Port data structure.
   *
   * This routine performs the necessary cleanups before deleting the @vport.
   * It invokes the discovery state machine to perform necessary state
   * transitions and to release the ndlps associated with the @vport. Note,
   * the physical port is treated as @vport 0.
   **/
  void
  lpfc_cleanup(struct lpfc_vport *vport)
  {
  	struct lpfc_hba   *phba = vport->phba;
  	struct lpfc_nodelist *ndlp, *next_ndlp;
  	int i = 0;
  
  	if (phba->link_state > LPFC_LINK_DOWN)
  		lpfc_port_link_failure(vport);
  
  	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
  		if (!NLP_CHK_NODE_ACT(ndlp)) {
  			ndlp = lpfc_enable_node(vport, ndlp,
  						NLP_STE_UNUSED_NODE);
  			if (!ndlp)
  				continue;
  			spin_lock_irq(&phba->ndlp_lock);
  			NLP_SET_FREE_REQ(ndlp);
  			spin_unlock_irq(&phba->ndlp_lock);
  			/* Trigger the release of the ndlp memory */
  			lpfc_nlp_put(ndlp);
  			continue;
  		}
  		spin_lock_irq(&phba->ndlp_lock);
  		if (NLP_CHK_FREE_REQ(ndlp)) {
  			/* The ndlp should not be in memory free mode already */
  			spin_unlock_irq(&phba->ndlp_lock);
  			continue;
  		} else
  			/* Indicate request for freeing ndlp memory */
  			NLP_SET_FREE_REQ(ndlp);
  		spin_unlock_irq(&phba->ndlp_lock);
  
  		if (vport->port_type != LPFC_PHYSICAL_PORT &&
  		    ndlp->nlp_DID == Fabric_DID) {
  			/* Just free up ndlp with Fabric_DID for vports */
  			lpfc_nlp_put(ndlp);
  			continue;
  		}
  
  		if (ndlp->nlp_type & NLP_FABRIC)
  			lpfc_disc_state_machine(vport, ndlp, NULL,
  					NLP_EVT_DEVICE_RECOVERY);
  
  		lpfc_disc_state_machine(vport, ndlp, NULL,
  					     NLP_EVT_DEVICE_RM);
  
  	}
  
  	/* At this point, ALL ndlp's should be gone
  	 * because of the previous NLP_EVT_DEVICE_RM.
  	 * Lets wait for this to happen, if needed.
  	 */
  	while (!list_empty(&vport->fc_nodes)) {
  		if (i++ > 3000) {
  			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
  				"0233 Nodelist not empty\n");
  			list_for_each_entry_safe(ndlp, next_ndlp,
  						&vport->fc_nodes, nlp_listp) {
  				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
  						LOG_NODE,
  						"0282 did:x%x ndlp:x%p "
  						"usgmap:x%x refcnt:%d\n",
  						ndlp->nlp_DID, (void *)ndlp,
  						ndlp->nlp_usg_map,
  						atomic_read(
  							&ndlp->kref.refcount));
  			}
  			break;
  		}
  
  		/* Wait for any activity on ndlps to settle */
  		msleep(10);
  	}
  }
  
  /**
   * lpfc_stop_vport_timers - Stop all the timers associated with a vport
   * @vport: pointer to a virtual N_Port data structure.
   *
   * This routine stops all the timers associated with a @vport. This function
   * is invoked before disabling or deleting a @vport. Note that the physical
   * port is treated as @vport 0.
   **/
  void
  lpfc_stop_vport_timers(struct lpfc_vport *vport)
  {
  	del_timer_sync(&vport->els_tmofunc);
  	del_timer_sync(&vport->fc_fdmitmo);
  	lpfc_can_disctmo(vport);
  	return;
  }
  
  /**
   * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
   * caller of this routine should already hold the host lock.
   **/
  void
  __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
  {
  	/* Clear pending FCF rediscovery wait and failover in progress flags */
  	phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND |
  				FCF_DEAD_DISC |
  				FCF_ACVL_DISC);
  	/* Now, try to stop the timer */
  	del_timer(&phba->fcf.redisc_wait);
  }
  
  /**
   * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
   * checks whether the FCF rediscovery wait timer is pending with the host
   * lock held before proceeding with disabling the timer and clearing the
   * wait timer pendig flag.
   **/
  void
  lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
  {
  	spin_lock_irq(&phba->hbalock);
  	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
  		/* FCF rediscovery timer already fired or stopped */
  		spin_unlock_irq(&phba->hbalock);
  		return;
  	}
  	__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
  	spin_unlock_irq(&phba->hbalock);
  }
  
  /**
   * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine stops all the timers associated with a HBA. This function is
   * invoked before either putting a HBA offline or unloading the driver.
   **/
  void
  lpfc_stop_hba_timers(struct lpfc_hba *phba)
  {
  	lpfc_stop_vport_timers(phba->pport);
  	del_timer_sync(&phba->sli.mbox_tmo);
  	del_timer_sync(&phba->fabric_block_timer);
  	del_timer_sync(&phba->eratt_poll);
  	del_timer_sync(&phba->hb_tmofunc);
  	phba->hb_outstanding = 0;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		/* Stop any LightPulse device specific driver timers */
  		del_timer_sync(&phba->fcp_poll_timer);
  		break;
  	case LPFC_PCI_DEV_OC:
  		/* Stop any OneConnect device sepcific driver timers */
  		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0297 Invalid device group (x%x)\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return;
  }
  
  /**
   * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine marks a HBA's management interface as blocked. Once the HBA's
   * management interface is marked as blocked, all the user space access to
   * the HBA, whether they are from sysfs interface or libdfc interface will
   * all be blocked. The HBA is set to block the management interface when the
   * driver prepares the HBA interface for online or offline.
   **/
  static void
  lpfc_block_mgmt_io(struct lpfc_hba * phba)
  {
  	unsigned long iflag;
  
  	spin_lock_irqsave(&phba->hbalock, iflag);
  	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
  	spin_unlock_irqrestore(&phba->hbalock, iflag);
  }
  
  /**
   * lpfc_online - Initialize and bring a HBA online
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine initializes the HBA and brings a HBA online. During this
   * process, the management interface is blocked to prevent user space access
   * to the HBA interfering with the driver initialization.
   *
   * Return codes
   *   0 - successful
   *   1 - failed
   **/
  int
  lpfc_online(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport;
  	struct lpfc_vport **vports;
  	int i;
  
  	if (!phba)
  		return 0;
  	vport = phba->pport;
  
  	if (!(vport->fc_flag & FC_OFFLINE_MODE))
  		return 0;
  
  	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  			"0458 Bring Adapter online\n");
  
  	lpfc_block_mgmt_io(phba);
  
  	if (!lpfc_sli_queue_setup(phba)) {
  		lpfc_unblock_mgmt_io(phba);
  		return 1;
  	}
  
  	if (phba->sli_rev == LPFC_SLI_REV4) {
  		if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
  			lpfc_unblock_mgmt_io(phba);
  			return 1;
  		}
  	} else {
  		if (lpfc_sli_hba_setup(phba)) {	/* Initialize SLI2/SLI3 HBA */
  			lpfc_unblock_mgmt_io(phba);
  			return 1;
  		}
  	}
  
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL)
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
  			struct Scsi_Host *shost;
  			shost = lpfc_shost_from_vport(vports[i]);
  			spin_lock_irq(shost->host_lock);
  			vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
  			if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
  				vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
  			if (phba->sli_rev == LPFC_SLI_REV4)
  				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
  			spin_unlock_irq(shost->host_lock);
  		}
  		lpfc_destroy_vport_work_array(phba, vports);
  
  	lpfc_unblock_mgmt_io(phba);
  	return 0;
  }
  
  /**
   * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine marks a HBA's management interface as not blocked. Once the
   * HBA's management interface is marked as not blocked, all the user space
   * access to the HBA, whether they are from sysfs interface or libdfc
   * interface will be allowed. The HBA is set to block the management interface
   * when the driver prepares the HBA interface for online or offline and then
   * set to unblock the management interface afterwards.
   **/
  void
  lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
  {
  	unsigned long iflag;
  
  	spin_lock_irqsave(&phba->hbalock, iflag);
  	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
  	spin_unlock_irqrestore(&phba->hbalock, iflag);
  }
  
  /**
   * lpfc_offline_prep - Prepare a HBA to be brought offline
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to prepare a HBA to be brought offline. It performs
   * unregistration login to all the nodes on all vports and flushes the mailbox
   * queue to make it ready to be brought offline.
   **/
  void
  lpfc_offline_prep(struct lpfc_hba * phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	struct lpfc_nodelist  *ndlp, *next_ndlp;
  	struct lpfc_vport **vports;
  	struct Scsi_Host *shost;
  	int i;
  
  	if (vport->fc_flag & FC_OFFLINE_MODE)
  		return;
  
  	lpfc_block_mgmt_io(phba);
  
  	lpfc_linkdown(phba);
  
  	/* Issue an unreg_login to all nodes on all vports */
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL) {
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
  			if (vports[i]->load_flag & FC_UNLOADING)
  				continue;
  			shost = lpfc_shost_from_vport(vports[i]);
  			spin_lock_irq(shost->host_lock);
  			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
  			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
  			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
  			spin_unlock_irq(shost->host_lock);
  
  			shost =	lpfc_shost_from_vport(vports[i]);
  			list_for_each_entry_safe(ndlp, next_ndlp,
  						 &vports[i]->fc_nodes,
  						 nlp_listp) {
  				if (!NLP_CHK_NODE_ACT(ndlp))
  					continue;
  				if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
  					continue;
  				if (ndlp->nlp_type & NLP_FABRIC) {
  					lpfc_disc_state_machine(vports[i], ndlp,
  						NULL, NLP_EVT_DEVICE_RECOVERY);
  					lpfc_disc_state_machine(vports[i], ndlp,
  						NULL, NLP_EVT_DEVICE_RM);
  				}
  				spin_lock_irq(shost->host_lock);
  				ndlp->nlp_flag &= ~NLP_NPR_ADISC;
  				spin_unlock_irq(shost->host_lock);
  				lpfc_unreg_rpi(vports[i], ndlp);
  			}
  		}
  	}
  	lpfc_destroy_vport_work_array(phba, vports);
  
  	lpfc_sli_mbox_sys_shutdown(phba);
  }
  
  /**
   * lpfc_offline - Bring a HBA offline
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine actually brings a HBA offline. It stops all the timers
   * associated with the HBA, brings down the SLI layer, and eventually
   * marks the HBA as in offline state for the upper layer protocol.
   **/
  void
  lpfc_offline(struct lpfc_hba *phba)
  {
  	struct Scsi_Host  *shost;
  	struct lpfc_vport **vports;
  	int i;
  
  	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
  		return;
  
  	/* stop port and all timers associated with this hba */
  	lpfc_stop_port(phba);
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL)
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
  			lpfc_stop_vport_timers(vports[i]);
  	lpfc_destroy_vport_work_array(phba, vports);
  	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  			"0460 Bring Adapter offline\n");
  	/* Bring down the SLI Layer and cleanup.  The HBA is offline
  	   now.  */
  	lpfc_sli_hba_down(phba);
  	spin_lock_irq(&phba->hbalock);
  	phba->work_ha = 0;
  	spin_unlock_irq(&phba->hbalock);
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL)
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
  			shost = lpfc_shost_from_vport(vports[i]);
  			spin_lock_irq(shost->host_lock);
  			vports[i]->work_port_events = 0;
  			vports[i]->fc_flag |= FC_OFFLINE_MODE;
  			spin_unlock_irq(shost->host_lock);
  		}
  	lpfc_destroy_vport_work_array(phba, vports);
  }
  
  /**
   * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is to free all the SCSI buffers and IOCBs from the driver
   * list back to kernel. It is called from lpfc_pci_remove_one to free
   * the internal resources before the device is removed from the system.
   *
   * Return codes
   *   0 - successful (for now, it always returns 0)
   **/
  static int
  lpfc_scsi_free(struct lpfc_hba *phba)
  {
  	struct lpfc_scsi_buf *sb, *sb_next;
  	struct lpfc_iocbq *io, *io_next;
  
  	spin_lock_irq(&phba->hbalock);
  	/* Release all the lpfc_scsi_bufs maintained by this host. */
  	spin_lock(&phba->scsi_buf_list_lock);
  	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
  		list_del(&sb->list);
  		pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
  			      sb->dma_handle);
  		kfree(sb);
  		phba->total_scsi_bufs--;
  	}
  	spin_unlock(&phba->scsi_buf_list_lock);
  
  	/* Release all the lpfc_iocbq entries maintained by this host. */
  	list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
  		list_del(&io->list);
  		kfree(io);
  		phba->total_iocbq_bufs--;
  	}
  	spin_unlock_irq(&phba->hbalock);
  	return 0;
  }
  
  /**
   * lpfc_create_port - Create an FC port
   * @phba: pointer to lpfc hba data structure.
   * @instance: a unique integer ID to this FC port.
   * @dev: pointer to the device data structure.
   *
   * This routine creates a FC port for the upper layer protocol. The FC port
   * can be created on top of either a physical port or a virtual port provided
   * by the HBA. This routine also allocates a SCSI host data structure (shost)
   * and associates the FC port created before adding the shost into the SCSI
   * layer.
   *
   * Return codes
   *   @vport - pointer to the virtual N_Port data structure.
   *   NULL - port create failed.
   **/
  struct lpfc_vport *
  lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
  {
  	struct lpfc_vport *vport;
  	struct Scsi_Host  *shost;
  	int error = 0;
  
  	if (dev != &phba->pcidev->dev)
  		shost = scsi_host_alloc(&lpfc_vport_template,
  					sizeof(struct lpfc_vport));
  	else
  		shost = scsi_host_alloc(&lpfc_template,
  					sizeof(struct lpfc_vport));
  	if (!shost)
  		goto out;
  
  	vport = (struct lpfc_vport *) shost->hostdata;
  	vport->phba = phba;
  	vport->load_flag |= FC_LOADING;
  	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
  	vport->fc_rscn_flush = 0;
  
  	lpfc_get_vport_cfgparam(vport);
  	shost->unique_id = instance;
  	shost->max_id = LPFC_MAX_TARGET;
  	shost->max_lun = vport->cfg_max_luns;
  	shost->this_id = -1;
  	shost->max_cmd_len = 16;
  	if (phba->sli_rev == LPFC_SLI_REV4) {
  		shost->dma_boundary =
  			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
  		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
  	}
  
  	/*
  	 * Set initial can_queue value since 0 is no longer supported and
  	 * scsi_add_host will fail. This will be adjusted later based on the
  	 * max xri value determined in hba setup.
  	 */
  	shost->can_queue = phba->cfg_hba_queue_depth - 10;
  	if (dev != &phba->pcidev->dev) {
  		shost->transportt = lpfc_vport_transport_template;
  		vport->port_type = LPFC_NPIV_PORT;
  	} else {
  		shost->transportt = lpfc_transport_template;
  		vport->port_type = LPFC_PHYSICAL_PORT;
  	}
  
  	/* Initialize all internally managed lists. */
  	INIT_LIST_HEAD(&vport->fc_nodes);
  	INIT_LIST_HEAD(&vport->rcv_buffer_list);
  	spin_lock_init(&vport->work_port_lock);
  
  	init_timer(&vport->fc_disctmo);
  	vport->fc_disctmo.function = lpfc_disc_timeout;
  	vport->fc_disctmo.data = (unsigned long)vport;
  
  	init_timer(&vport->fc_fdmitmo);
  	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
  	vport->fc_fdmitmo.data = (unsigned long)vport;
  
  	init_timer(&vport->els_tmofunc);
  	vport->els_tmofunc.function = lpfc_els_timeout;
  	vport->els_tmofunc.data = (unsigned long)vport;
  	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
  	if (error)
  		goto out_put_shost;
  
  	spin_lock_irq(&phba->hbalock);
  	list_add_tail(&vport->listentry, &phba->port_list);
  	spin_unlock_irq(&phba->hbalock);
  	return vport;
  
  out_put_shost:
  	scsi_host_put(shost);
  out:
  	return NULL;
  }
  
  /**
   * destroy_port -  destroy an FC port
   * @vport: pointer to an lpfc virtual N_Port data structure.
   *
   * This routine destroys a FC port from the upper layer protocol. All the
   * resources associated with the port are released.
   **/
  void
  destroy_port(struct lpfc_vport *vport)
  {
  	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
  	struct lpfc_hba  *phba = vport->phba;
  
  	lpfc_debugfs_terminate(vport);
  	fc_remove_host(shost);
  	scsi_remove_host(shost);
  
  	spin_lock_irq(&phba->hbalock);
  	list_del_init(&vport->listentry);
  	spin_unlock_irq(&phba->hbalock);
  
  	lpfc_cleanup(vport);
  	return;
  }
  
  /**
   * lpfc_get_instance - Get a unique integer ID
   *
   * This routine allocates a unique integer ID from lpfc_hba_index pool. It
   * uses the kernel idr facility to perform the task.
   *
   * Return codes:
   *   instance - a unique integer ID allocated as the new instance.
   *   -1 - lpfc get instance failed.
   **/
  int
  lpfc_get_instance(void)
  {
  	int instance = 0;
  
  	/* Assign an unused number */
  	if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
  		return -1;
  	if (idr_get_new(&lpfc_hba_index, NULL, &instance))
  		return -1;
  	return instance;
  }
  
  /**
   * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
   * @shost: pointer to SCSI host data structure.
   * @time: elapsed time of the scan in jiffies.
   *
   * This routine is called by the SCSI layer with a SCSI host to determine
   * whether the scan host is finished.
   *
   * Note: there is no scan_start function as adapter initialization will have
   * asynchronously kicked off the link initialization.
   *
   * Return codes
   *   0 - SCSI host scan is not over yet.
   *   1 - SCSI host scan is over.
   **/
  int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int stat = 0;
  
  	spin_lock_irq(shost->host_lock);
  
  	if (vport->load_flag & FC_UNLOADING) {
  		stat = 1;
  		goto finished;
  	}
  	if (time >= 30 * HZ) {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0461 Scanning longer than 30 "
  				"seconds.  Continuing initialization\n");
  		stat = 1;
  		goto finished;
  	}
  	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0465 Link down longer than 15 "
  				"seconds.  Continuing initialization\n");
  		stat = 1;
  		goto finished;
  	}
  
  	if (vport->port_state != LPFC_VPORT_READY)
  		goto finished;
  	if (vport->num_disc_nodes || vport->fc_prli_sent)
  		goto finished;
  	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
  		goto finished;
  	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
  		goto finished;
  
  	stat = 1;
  
  finished:
  	spin_unlock_irq(shost->host_lock);
  	return stat;
  }
  
  /**
   * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
   * @shost: pointer to SCSI host data structure.
   *
   * This routine initializes a given SCSI host attributes on a FC port. The
   * SCSI host can be either on top of a physical port or a virtual port.
   **/
  void lpfc_host_attrib_init(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	/*
  	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
  	 */
  
  	fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
  	fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
  	fc_host_supported_classes(shost) = FC_COS_CLASS3;
  
  	memset(fc_host_supported_fc4s(shost), 0,
  	       sizeof(fc_host_supported_fc4s(shost)));
  	fc_host_supported_fc4s(shost)[2] = 1;
  	fc_host_supported_fc4s(shost)[7] = 1;
  
  	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
  				 sizeof fc_host_symbolic_name(shost));
  
  	fc_host_supported_speeds(shost) = 0;
  	if (phba->lmt & LMT_10Gb)
  		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
  	if (phba->lmt & LMT_8Gb)
  		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
  	if (phba->lmt & LMT_4Gb)
  		fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
  	if (phba->lmt & LMT_2Gb)
  		fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
  	if (phba->lmt & LMT_1Gb)
  		fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
  
  	fc_host_maxframe_size(shost) =
  		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
  		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
  
  	/* This value is also unchanging */
  	memset(fc_host_active_fc4s(shost), 0,
  	       sizeof(fc_host_active_fc4s(shost)));
  	fc_host_active_fc4s(shost)[2] = 1;
  	fc_host_active_fc4s(shost)[7] = 1;
  
  	fc_host_max_npiv_vports(shost) = phba->max_vpi;
  	spin_lock_irq(shost->host_lock);
  	vport->load_flag &= ~FC_LOADING;
  	spin_unlock_irq(shost->host_lock);
  }
  
  /**
   * lpfc_stop_port_s3 - Stop SLI3 device port
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to stop an SLI3 device port, it stops the device
   * from generating interrupts and stops the device driver's timers for the
   * device.
   **/
  static void
  lpfc_stop_port_s3(struct lpfc_hba *phba)
  {
  	/* Clear all interrupt enable conditions */
  	writel(0, phba->HCregaddr);
  	readl(phba->HCregaddr); /* flush */
  	/* Clear all pending interrupts */
  	writel(0xffffffff, phba->HAregaddr);
  	readl(phba->HAregaddr); /* flush */
  
  	/* Reset some HBA SLI setup states */
  	lpfc_stop_hba_timers(phba);
  	phba->pport->work_port_events = 0;
  }
  
  /**
   * lpfc_stop_port_s4 - Stop SLI4 device port
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to stop an SLI4 device port, it stops the device
   * from generating interrupts and stops the device driver's timers for the
   * device.
   **/
  static void
  lpfc_stop_port_s4(struct lpfc_hba *phba)
  {
  	/* Reset some HBA SLI4 setup states */
  	lpfc_stop_hba_timers(phba);
  	phba->pport->work_port_events = 0;
  	phba->sli4_hba.intr_enable = 0;
  }
  
  /**
   * lpfc_stop_port - Wrapper function for stopping hba port
   * @phba: Pointer to HBA context object.
   *
   * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
   * the API jump table function pointer from the lpfc_hba struct.
   **/
  void
  lpfc_stop_port(struct lpfc_hba *phba)
  {
  	phba->lpfc_stop_port(phba);
  }
  
  /**
   * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to remove the driver default fcf record from
   * the port.  This routine currently acts on FCF Index 0.
   *
   **/
  void
  lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
  {
  	int rc = 0;
  	LPFC_MBOXQ_t *mboxq;
  	struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
  	uint32_t mbox_tmo, req_len;
  	uint32_t shdr_status, shdr_add_status;
  
  	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!mboxq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"2020 Failed to allocate mbox for ADD_FCF cmd\n");
  		return;
  	}
  
  	req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
  		  sizeof(struct lpfc_sli4_cfg_mhdr);
  	rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
  			      LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
  			      req_len, LPFC_SLI4_MBX_EMBED);
  	/*
  	 * In phase 1, there is a single FCF index, 0.  In phase2, the driver
  	 * supports multiple FCF indices.
  	 */
  	del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
  	bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
  	bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
  	       phba->fcf.current_rec.fcf_indx);
  
  	if (!phba->sli4_hba.intr_enable)
  		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  	else {
  		mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
  		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
  	}
  	/* The IOCTL status is embedded in the mailbox subheader. */
  	shdr_status = bf_get(lpfc_mbox_hdr_status,
  			     &del_fcf_record->header.cfg_shdr.response);
  	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
  				 &del_fcf_record->header.cfg_shdr.response);
  	if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2516 DEL FCF of default FCF Index failed "
  				"mbx status x%x, status x%x add_status x%x\n",
  				rc, shdr_status, shdr_add_status);
  	}
  	if (rc != MBX_TIMEOUT)
  		mempool_free(mboxq, phba->mbox_mem_pool);
  }
  
  /**
   * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
   * @phba: Pointer to hba for which this call is being executed.
   *
   * This routine starts the timer waiting for the FCF rediscovery to complete.
   **/
  void
  lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
  {
  	unsigned long fcf_redisc_wait_tmo =
  		(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
  	/* Start fcf rediscovery wait period timer */
  	mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
  	spin_lock_irq(&phba->hbalock);
  	/* Allow action to new fcf asynchronous event */
  	phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
  	/* Mark the FCF rediscovery pending state */
  	phba->fcf.fcf_flag |= FCF_REDISC_PEND;
  	spin_unlock_irq(&phba->hbalock);
  }
  
  /**
   * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
   * @ptr: Map to lpfc_hba data structure pointer.
   *
   * This routine is invoked when waiting for FCF table rediscover has been
   * timed out. If new FCF record(s) has (have) been discovered during the
   * wait period, a new FCF event shall be added to the FCOE async event
   * list, and then worker thread shall be waked up for processing from the
   * worker thread context.
   **/
  void
  lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
  {
  	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
  
  	/* Don't send FCF rediscovery event if timer cancelled */
  	spin_lock_irq(&phba->hbalock);
  	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
  		spin_unlock_irq(&phba->hbalock);
  		return;
  	}
  	/* Clear FCF rediscovery timer pending flag */
  	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
  	/* FCF rediscovery event to worker thread */
  	phba->fcf.fcf_flag |= FCF_REDISC_EVT;
  	spin_unlock_irq(&phba->hbalock);
  	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
  			"2776 FCF rediscover wait timer expired, post "
  			"a worker thread event for FCF table scan\n");
  	/* wake up worker thread */
  	lpfc_worker_wake_up(phba);
  }
  
  /**
   * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
   * @phba: pointer to lpfc hba data structure.
   *
   * This function uses the QUERY_FW_CFG mailbox command to determine if the
   * firmware loaded supports FCoE. A return of zero indicates that the mailbox
   * was successful and the firmware supports FCoE. Any other return indicates
   * a error. It is assumed that this function will be called before interrupts
   * are enabled.
   **/
  static int
  lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
  {
  	int rc = 0;
  	LPFC_MBOXQ_t *mboxq;
  	struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
  	uint32_t length;
  	uint32_t shdr_status, shdr_add_status;
  
  	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!mboxq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2621 Failed to allocate mbox for "
  				"query firmware config cmd\n");
  		return -ENOMEM;
  	}
  	query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
  	length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
  		  sizeof(struct lpfc_sli4_cfg_mhdr));
  	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
  			 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
  			 length, LPFC_SLI4_MBX_EMBED);
  	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  	/* The IOCTL status is embedded in the mailbox subheader. */
  	shdr_status = bf_get(lpfc_mbox_hdr_status,
  			     &query_fw_cfg->header.cfg_shdr.response);
  	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
  				 &query_fw_cfg->header.cfg_shdr.response);
  	if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2622 Query Firmware Config failed "
  				"mbx status x%x, status x%x add_status x%x\n",
  				rc, shdr_status, shdr_add_status);
  		return -EINVAL;
  	}
  	if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2623 FCoE Function not supported by firmware. "
  				"Function mode = %08x\n",
  				query_fw_cfg->function_mode);
  		return -EINVAL;
  	}
  	if (rc != MBX_TIMEOUT)
  		mempool_free(mboxq, phba->mbox_mem_pool);
  	return 0;
  }
  
  /**
   * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async link completion queue entry.
   *
   * This routine is to parse the SLI4 link-attention link fault code and
   * translate it into the base driver's read link attention mailbox command
   * status.
   *
   * Return: Link-attention status in terms of base driver's coding.
   **/
  static uint16_t
  lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
  			   struct lpfc_acqe_link *acqe_link)
  {
  	uint16_t latt_fault;
  
  	switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
  	case LPFC_ASYNC_LINK_FAULT_NONE:
  	case LPFC_ASYNC_LINK_FAULT_LOCAL:
  	case LPFC_ASYNC_LINK_FAULT_REMOTE:
  		latt_fault = 0;
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0398 Invalid link fault code: x%x\n",
  				bf_get(lpfc_acqe_link_fault, acqe_link));
  		latt_fault = MBXERR_ERROR;
  		break;
  	}
  	return latt_fault;
  }
  
  /**
   * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async link completion queue entry.
   *
   * This routine is to parse the SLI4 link attention type and translate it
   * into the base driver's link attention type coding.
   *
   * Return: Link attention type in terms of base driver's coding.
   **/
  static uint8_t
  lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
  			  struct lpfc_acqe_link *acqe_link)
  {
  	uint8_t att_type;
  
  	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
  	case LPFC_ASYNC_LINK_STATUS_DOWN:
  	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
  		att_type = AT_LINK_DOWN;
  		break;
  	case LPFC_ASYNC_LINK_STATUS_UP:
  		/* Ignore physical link up events - wait for logical link up */
  		att_type = AT_RESERVED;
  		break;
  	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
  		att_type = AT_LINK_UP;
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0399 Invalid link attention type: x%x\n",
  				bf_get(lpfc_acqe_link_status, acqe_link));
  		att_type = AT_RESERVED;
  		break;
  	}
  	return att_type;
  }
  
  /**
   * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async link completion queue entry.
   *
   * This routine is to parse the SLI4 link-attention link speed and translate
   * it into the base driver's link-attention link speed coding.
   *
   * Return: Link-attention link speed in terms of base driver's coding.
   **/
  static uint8_t
  lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
  				struct lpfc_acqe_link *acqe_link)
  {
  	uint8_t link_speed;
  
  	switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
  	case LPFC_ASYNC_LINK_SPEED_ZERO:
  		link_speed = LA_UNKNW_LINK;
  		break;
  	case LPFC_ASYNC_LINK_SPEED_10MBPS:
  		link_speed = LA_UNKNW_LINK;
  		break;
  	case LPFC_ASYNC_LINK_SPEED_100MBPS:
  		link_speed = LA_UNKNW_LINK;
  		break;
  	case LPFC_ASYNC_LINK_SPEED_1GBPS:
  		link_speed = LA_1GHZ_LINK;
  		break;
  	case LPFC_ASYNC_LINK_SPEED_10GBPS:
  		link_speed = LA_10GHZ_LINK;
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0483 Invalid link-attention link speed: x%x\n",
  				bf_get(lpfc_acqe_link_speed, acqe_link));
  		link_speed = LA_UNKNW_LINK;
  		break;
  	}
  	return link_speed;
  }
  
  /**
   * lpfc_sli4_async_link_evt - Process the asynchronous link event
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async link completion queue entry.
   *
   * This routine is to handle the SLI4 asynchronous link event.
   **/
  static void
  lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
  			 struct lpfc_acqe_link *acqe_link)
  {
  	struct lpfc_dmabuf *mp;
  	LPFC_MBOXQ_t *pmb;
  	MAILBOX_t *mb;
  	READ_LA_VAR *la;
  	uint8_t att_type;
  
  	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
  	if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
  		return;
  	phba->fcoe_eventtag = acqe_link->event_tag;
  	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"0395 The mboxq allocation failed\n");
  		return;
  	}
  	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
  	if (!mp) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"0396 The lpfc_dmabuf allocation failed\n");
  		goto out_free_pmb;
  	}
  	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
  	if (!mp->virt) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"0397 The mbuf allocation failed\n");
  		goto out_free_dmabuf;
  	}
  
  	/* Cleanup any outstanding ELS commands */
  	lpfc_els_flush_all_cmd(phba);
  
  	/* Block ELS IOCBs until we have done process link event */
  	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
  
  	/* Update link event statistics */
  	phba->sli.slistat.link_event++;
  
  	/* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
  	lpfc_read_la(phba, pmb, mp);
  	pmb->vport = phba->pport;
  
  	/* Parse and translate status field */
  	mb = &pmb->u.mb;
  	mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
  
  	/* Parse and translate link attention fields */
  	la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
  	la->eventTag = acqe_link->event_tag;
  	la->attType = att_type;
  	la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
  
  	/* Fake the the following irrelvant fields */
  	la->topology = TOPOLOGY_PT_PT;
  	la->granted_AL_PA = 0;
  	la->il = 0;
  	la->pb = 0;
  	la->fa = 0;
  	la->mm = 0;
  
  	/* Keep the link status for extra SLI4 state machine reference */
  	phba->sli4_hba.link_state.speed =
  				bf_get(lpfc_acqe_link_speed, acqe_link);
  	phba->sli4_hba.link_state.duplex =
  				bf_get(lpfc_acqe_link_duplex, acqe_link);
  	phba->sli4_hba.link_state.status =
  				bf_get(lpfc_acqe_link_status, acqe_link);
  	phba->sli4_hba.link_state.physical =
  				bf_get(lpfc_acqe_link_physical, acqe_link);
  	phba->sli4_hba.link_state.fault =
  				bf_get(lpfc_acqe_link_fault, acqe_link);
  	phba->sli4_hba.link_state.logical_speed =
  				bf_get(lpfc_acqe_qos_link_speed, acqe_link);
  
  	/* Invoke the lpfc_handle_latt mailbox command callback function */
  	lpfc_mbx_cmpl_read_la(phba, pmb);
  
  	return;
  
  out_free_dmabuf:
  	kfree(mp);
  out_free_pmb:
  	mempool_free(pmb, phba->mbox_mem_pool);
  }
  
  /**
   * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
   * @vport: pointer to vport data structure.
   *
   * This routine is to perform Clear Virtual Link (CVL) on a vport in
   * response to a CVL event.
   *
   * Return the pointer to the ndlp with the vport if successful, otherwise
   * return NULL.
   **/
  static struct lpfc_nodelist *
  lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
  {
  	struct lpfc_nodelist *ndlp;
  	struct Scsi_Host *shost;
  	struct lpfc_hba *phba;
  
  	if (!vport)
  		return NULL;
  	phba = vport->phba;
  	if (!phba)
  		return NULL;
  	ndlp = lpfc_findnode_did(vport, Fabric_DID);
  	if (!ndlp) {
  		/* Cannot find existing Fabric ndlp, so allocate a new one */
  		ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
  		if (!ndlp)
  			return 0;
  		lpfc_nlp_init(vport, ndlp, Fabric_DID);
  		/* Set the node type */
  		ndlp->nlp_type |= NLP_FABRIC;
  		/* Put ndlp onto node list */
  		lpfc_enqueue_node(vport, ndlp);
  	} else if (!NLP_CHK_NODE_ACT(ndlp)) {
  		/* re-setup ndlp without removing from node list */
  		ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
  		if (!ndlp)
  			return 0;
  	}
  	if (phba->pport->port_state <= LPFC_FLOGI)
  		return NULL;
  	/* If virtual link is not yet instantiated ignore CVL */
  	if (vport->port_state <= LPFC_FDISC)
  		return NULL;
  	shost = lpfc_shost_from_vport(vport);
  	if (!shost)
  		return NULL;
  	lpfc_linkdown_port(vport);
  	lpfc_cleanup_pending_mbox(vport);
  	spin_lock_irq(shost->host_lock);
  	vport->fc_flag |= FC_VPORT_CVL_RCVD;
  	spin_unlock_irq(shost->host_lock);
  
  	return ndlp;
  }
  
  /**
   * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
   * @vport: pointer to lpfc hba data structure.
   *
   * This routine is to perform Clear Virtual Link (CVL) on all vports in
   * response to a FCF dead event.
   **/
  static void
  lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
  {
  	struct lpfc_vport **vports;
  	int i;
  
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports)
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
  			lpfc_sli4_perform_vport_cvl(vports[i]);
  	lpfc_destroy_vport_work_array(phba, vports);
  }
  
  /**
   * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async fcoe completion queue entry.
   *
   * This routine is to handle the SLI4 asynchronous fcoe event.
   **/
  static void
  lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
  			 struct lpfc_acqe_fcoe *acqe_fcoe)
  {
  	uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
  	int rc;
  	struct lpfc_vport *vport;
  	struct lpfc_nodelist *ndlp;
  	struct Scsi_Host  *shost;
  	int active_vlink_present;
  	struct lpfc_vport **vports;
  	int i;
  
  	phba->fc_eventTag = acqe_fcoe->event_tag;
  	phba->fcoe_eventtag = acqe_fcoe->event_tag;
  	switch (event_type) {
  	case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
  	case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
  		if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
  			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
  					LOG_DISCOVERY,
  					"2546 New FCF found event: "
  					"evt_tag:x%x, fcf_index:x%x\n",
  					acqe_fcoe->event_tag,
  					acqe_fcoe->index);
  		else
  			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
  					LOG_DISCOVERY,
  					"2788 FCF parameter modified event: "
  					"evt_tag:x%x, fcf_index:x%x\n",
  					acqe_fcoe->event_tag,
  					acqe_fcoe->index);
  		spin_lock_irq(&phba->hbalock);
  		if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
  		    (phba->hba_flag & FCF_DISC_INPROGRESS)) {
  			/*
  			 * If the current FCF is in discovered state or
  			 * FCF discovery is in progress, do nothing.
  			 */
  			spin_unlock_irq(&phba->hbalock);
  			break;
  		}
  
  		if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
  			/*
  			 * If fast FCF failover rescan event is pending,
  			 * do nothing.
  			 */
  			spin_unlock_irq(&phba->hbalock);
  			break;
  		}
  		spin_unlock_irq(&phba->hbalock);
  
  		if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
  		    !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
  			/*
  			 * During period of FCF discovery, read the FCF
  			 * table record indexed by the event to update
  			 * FCF round robin failover eligible FCF bmask.
  			 */
  			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
  					LOG_DISCOVERY,
  					"2779 Read new FCF record with "
  					"fcf_index:x%x for updating FCF "
  					"round robin failover bmask\n",
  					acqe_fcoe->index);
  			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
  		}
  
  		/* Otherwise, scan the entire FCF table and re-discover SAN */
  		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
  				"2770 Start FCF table scan due to new FCF "
  				"event: evt_tag:x%x, fcf_index:x%x\n",
  				acqe_fcoe->event_tag, acqe_fcoe->index);
  		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
  						     LPFC_FCOE_FCF_GET_FIRST);
  		if (rc)
  			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
  					"2547 Issue FCF scan read FCF mailbox "
  					"command failed 0x%x\n", rc);
  		break;
  
  	case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  			"2548 FCF Table full count 0x%x tag 0x%x\n",
  			bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
  			acqe_fcoe->event_tag);
  		break;
  
  	case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
  		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
  			"2549 FCF disconnected from network index 0x%x"
  			" tag 0x%x\n", acqe_fcoe->index,
  			acqe_fcoe->event_tag);
  		/* If the event is not for currently used fcf do nothing */
  		if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
  			break;
  		/* We request port to rediscover the entire FCF table for
  		 * a fast recovery from case that the current FCF record
  		 * is no longer valid if we are not in the middle of FCF
  		 * failover process already.
  		 */
  		spin_lock_irq(&phba->hbalock);
  		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
  			spin_unlock_irq(&phba->hbalock);
  			/* Update FLOGI FCF failover eligible FCF bmask */
  			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
  			break;
  		}
  		/* Mark the fast failover process in progress */
  		phba->fcf.fcf_flag |= FCF_DEAD_DISC;
  		spin_unlock_irq(&phba->hbalock);
  		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
  				"2771 Start FCF fast failover process due to "
  				"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
  				"\n", acqe_fcoe->event_tag, acqe_fcoe->index);
  		rc = lpfc_sli4_redisc_fcf_table(phba);
  		if (rc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
  					LOG_DISCOVERY,
  					"2772 Issue FCF rediscover mabilbox "
  					"command failed, fail through to FCF "
  					"dead event\n");
  			spin_lock_irq(&phba->hbalock);
  			phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
  			spin_unlock_irq(&phba->hbalock);
  			/*
  			 * Last resort will fail over by treating this
  			 * as a link down to FCF registration.
  			 */
  			lpfc_sli4_fcf_dead_failthrough(phba);
  		} else
  			/* Handling fast FCF failover to a DEAD FCF event
  			 * is considered equalivant to receiving CVL to all
  			 * vports.
  			 */
  			lpfc_sli4_perform_all_vport_cvl(phba);
  		break;
  	case LPFC_FCOE_EVENT_TYPE_CVL:
  		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
  			"2718 Clear Virtual Link Received for VPI 0x%x"
  			" tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
  		vport = lpfc_find_vport_by_vpid(phba,
  				acqe_fcoe->index - phba->vpi_base);
  		ndlp = lpfc_sli4_perform_vport_cvl(vport);
  		if (!ndlp)
  			break;
  		active_vlink_present = 0;
  
  		vports = lpfc_create_vport_work_array(phba);
  		if (vports) {
  			for (i = 0; i <= phba->max_vports && vports[i] != NULL;
  					i++) {
  				if ((!(vports[i]->fc_flag &
  					FC_VPORT_CVL_RCVD)) &&
  					(vports[i]->port_state > LPFC_FDISC)) {
  					active_vlink_present = 1;
  					break;
  				}
  			}
  			lpfc_destroy_vport_work_array(phba, vports);
  		}
  
  		if (active_vlink_present) {
  			/*
  			 * If there are other active VLinks present,
  			 * re-instantiate the Vlink using FDISC.
  			 */
  			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
  			shost = lpfc_shost_from_vport(vport);
  			spin_lock_irq(shost->host_lock);
  			ndlp->nlp_flag |= NLP_DELAY_TMO;
  			spin_unlock_irq(shost->host_lock);
  			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
  			vport->port_state = LPFC_FDISC;
  		} else {
  			/*
  			 * Otherwise, we request port to rediscover
  			 * the entire FCF table for a fast recovery
  			 * from possible case that the current FCF
  			 * is no longer valid if we are not already
  			 * in the FCF failover process.
  			 */
  			spin_lock_irq(&phba->hbalock);
  			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
  				spin_unlock_irq(&phba->hbalock);
  				break;
  			}
  			/* Mark the fast failover process in progress */
  			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
  			spin_unlock_irq(&phba->hbalock);
  			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
  					LOG_DISCOVERY,
  					"2773 Start FCF fast failover due "
  					"to CVL event: evt_tag:x%x\n",
  					acqe_fcoe->event_tag);
  			rc = lpfc_sli4_redisc_fcf_table(phba);
  			if (rc) {
  				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
  						LOG_DISCOVERY,
  						"2774 Issue FCF rediscover "
  						"mabilbox command failed, "
  						"through to CVL event\n");
  				spin_lock_irq(&phba->hbalock);
  				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
  				spin_unlock_irq(&phba->hbalock);
  				/*
  				 * Last resort will be re-try on the
  				 * the current registered FCF entry.
  				 */
  				lpfc_retry_pport_discovery(phba);
  			}
  		}
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  			"0288 Unknown FCoE event type 0x%x event tag "
  			"0x%x\n", event_type, acqe_fcoe->event_tag);
  		break;
  	}
  }
  
  /**
   * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async dcbx completion queue entry.
   *
   * This routine is to handle the SLI4 asynchronous dcbx event.
   **/
  static void
  lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
  			 struct lpfc_acqe_dcbx *acqe_dcbx)
  {
  	phba->fc_eventTag = acqe_dcbx->event_tag;
  	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  			"0290 The SLI4 DCBX asynchronous event is not "
  			"handled yet\n");
  }
  
  /**
   * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
   * @phba: pointer to lpfc hba data structure.
   * @acqe_link: pointer to the async grp5 completion queue entry.
   *
   * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
   * is an asynchronous notified of a logical link speed change.  The Port
   * reports the logical link speed in units of 10Mbps.
   **/
  static void
  lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
  			 struct lpfc_acqe_grp5 *acqe_grp5)
  {
  	uint16_t prev_ll_spd;
  
  	phba->fc_eventTag = acqe_grp5->event_tag;
  	phba->fcoe_eventtag = acqe_grp5->event_tag;
  	prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
  	phba->sli4_hba.link_state.logical_speed =
  		(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
  	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
  			"2789 GRP5 Async Event: Updating logical link speed "
  			"from %dMbps to %dMbps\n", (prev_ll_spd * 10),
  			(phba->sli4_hba.link_state.logical_speed*10));
  }
  
  /**
   * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked by the worker thread to process all the pending
   * SLI4 asynchronous events.
   **/
  void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
  {
  	struct lpfc_cq_event *cq_event;
  
  	/* First, declare the async event has been handled */
  	spin_lock_irq(&phba->hbalock);
  	phba->hba_flag &= ~ASYNC_EVENT;
  	spin_unlock_irq(&phba->hbalock);
  	/* Now, handle all the async events */
  	while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
  		/* Get the first event from the head of the event queue */
  		spin_lock_irq(&phba->hbalock);
  		list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
  				 cq_event, struct lpfc_cq_event, list);
  		spin_unlock_irq(&phba->hbalock);
  		/* Process the asynchronous event */
  		switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
  		case LPFC_TRAILER_CODE_LINK:
  			lpfc_sli4_async_link_evt(phba,
  						 &cq_event->cqe.acqe_link);
  			break;
  		case LPFC_TRAILER_CODE_FCOE:
  			lpfc_sli4_async_fcoe_evt(phba,
  						 &cq_event->cqe.acqe_fcoe);
  			break;
  		case LPFC_TRAILER_CODE_DCBX:
  			lpfc_sli4_async_dcbx_evt(phba,
  						 &cq_event->cqe.acqe_dcbx);
  			break;
  		case LPFC_TRAILER_CODE_GRP5:
  			lpfc_sli4_async_grp5_evt(phba,
  						 &cq_event->cqe.acqe_grp5);
  			break;
  		default:
  			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  					"1804 Invalid asynchrous event code: "
  					"x%x\n", bf_get(lpfc_trailer_code,
  					&cq_event->cqe.mcqe_cmpl));
  			break;
  		}
  		/* Free the completion event processed to the free pool */
  		lpfc_sli4_cq_event_release(phba, cq_event);
  	}
  }
  
  /**
   * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked by the worker thread to process FCF table
   * rediscovery pending completion event.
   **/
  void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
  {
  	int rc;
  
  	spin_lock_irq(&phba->hbalock);
  	/* Clear FCF rediscovery timeout event */
  	phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
  	/* Clear driver fast failover FCF record flag */
  	phba->fcf.failover_rec.flag = 0;
  	/* Set state for FCF fast failover */
  	phba->fcf.fcf_flag |= FCF_REDISC_FOV;
  	spin_unlock_irq(&phba->hbalock);
  
  	/* Scan FCF table from the first entry to re-discover SAN */
  	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
  			"2777 Start FCF table scan after FCF "
  			"rediscovery quiescent period over\n");
  	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
  	if (rc)
  		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
  				"2747 Issue FCF scan read FCF mailbox "
  				"command failed 0x%x\n", rc);
  }
  
  /**
   * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
   * @phba: pointer to lpfc hba data structure.
   * @dev_grp: The HBA PCI-Device group number.
   *
   * This routine is invoked to set up the per HBA PCI-Device group function
   * API jump table entries.
   *
   * Return: 0 if success, otherwise -ENODEV
   **/
  int
  lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
  {
  	int rc;
  
  	/* Set up lpfc PCI-device group */
  	phba->pci_dev_grp = dev_grp;
  
  	/* The LPFC_PCI_DEV_OC uses SLI4 */
  	if (dev_grp == LPFC_PCI_DEV_OC)
  		phba->sli_rev = LPFC_SLI_REV4;
  
  	/* Set up device INIT API function jump table */
  	rc = lpfc_init_api_table_setup(phba, dev_grp);
  	if (rc)
  		return -ENODEV;
  	/* Set up SCSI API function jump table */
  	rc = lpfc_scsi_api_table_setup(phba, dev_grp);
  	if (rc)
  		return -ENODEV;
  	/* Set up SLI API function jump table */
  	rc = lpfc_sli_api_table_setup(phba, dev_grp);
  	if (rc)
  		return -ENODEV;
  	/* Set up MBOX API function jump table */
  	rc = lpfc_mbox_api_table_setup(phba, dev_grp);
  	if (rc)
  		return -ENODEV;
  
  	return 0;
  }
  
  /**
   * lpfc_log_intr_mode - Log the active interrupt mode
   * @phba: pointer to lpfc hba data structure.
   * @intr_mode: active interrupt mode adopted.
   *
   * This routine it invoked to log the currently used active interrupt mode
   * to the device.
   **/
  static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
  {
  	switch (intr_mode) {
  	case 0:
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0470 Enable INTx interrupt mode.\n");
  		break;
  	case 1:
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0481 Enabled MSI interrupt mode.\n");
  		break;
  	case 2:
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0480 Enabled MSI-X interrupt mode.\n");
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0482 Illegal interrupt mode.\n");
  		break;
  	}
  	return;
  }
  
  /**
   * lpfc_enable_pci_dev - Enable a generic PCI device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable the PCI device that is common to all
   * PCI devices.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_enable_pci_dev(struct lpfc_hba *phba)
  {
  	struct pci_dev *pdev;
  	int bars;
  
  	/* Obtain PCI device reference */
  	if (!phba->pcidev)
  		goto out_error;
  	else
  		pdev = phba->pcidev;
  	/* Select PCI BARs */
  	bars = pci_select_bars(pdev, IORESOURCE_MEM);
  	/* Enable PCI device */
  	if (pci_enable_device_mem(pdev))
  		goto out_error;
  	/* Request PCI resource for the device */
  	if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
  		goto out_disable_device;
  	/* Set up device as PCI master and save state for EEH */
  	pci_set_master(pdev);
  	pci_try_set_mwi(pdev);
  	pci_save_state(pdev);
  
  	return 0;
  
  out_disable_device:
  	pci_disable_device(pdev);
  out_error:
  	return -ENODEV;
  }
  
  /**
   * lpfc_disable_pci_dev - Disable a generic PCI device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to disable the PCI device that is common to all
   * PCI devices.
   **/
  static void
  lpfc_disable_pci_dev(struct lpfc_hba *phba)
  {
  	struct pci_dev *pdev;
  	int bars;
  
  	/* Obtain PCI device reference */
  	if (!phba->pcidev)
  		return;
  	else
  		pdev = phba->pcidev;
  	/* Select PCI BARs */
  	bars = pci_select_bars(pdev, IORESOURCE_MEM);
  	/* Release PCI resource and disable PCI device */
  	pci_release_selected_regions(pdev, bars);
  	pci_disable_device(pdev);
  	/* Null out PCI private reference to driver */
  	pci_set_drvdata(pdev, NULL);
  
  	return;
  }
  
  /**
   * lpfc_reset_hba - Reset a hba
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to reset a hba device. It brings the HBA
   * offline, performs a board restart, and then brings the board back
   * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
   * on outstanding mailbox commands.
   **/
  void
  lpfc_reset_hba(struct lpfc_hba *phba)
  {
  	/* If resets are disabled then set error state and return. */
  	if (!phba->cfg_enable_hba_reset) {
  		phba->link_state = LPFC_HBA_ERROR;
  		return;
  	}
  	lpfc_offline_prep(phba);
  	lpfc_offline(phba);
  	lpfc_sli_brdrestart(phba);
  	lpfc_online(phba);
  	lpfc_unblock_mgmt_io(phba);
  }
  
  /**
   * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up the driver internal resources specific to
   * support the SLI-3 HBA device it attached to.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
  {
  	struct lpfc_sli *psli;
  
  	/*
  	 * Initialize timers used by driver
  	 */
  
  	/* Heartbeat timer */
  	init_timer(&phba->hb_tmofunc);
  	phba->hb_tmofunc.function = lpfc_hb_timeout;
  	phba->hb_tmofunc.data = (unsigned long)phba;
  
  	psli = &phba->sli;
  	/* MBOX heartbeat timer */
  	init_timer(&psli->mbox_tmo);
  	psli->mbox_tmo.function = lpfc_mbox_timeout;
  	psli->mbox_tmo.data = (unsigned long) phba;
  	/* FCP polling mode timer */
  	init_timer(&phba->fcp_poll_timer);
  	phba->fcp_poll_timer.function = lpfc_poll_timeout;
  	phba->fcp_poll_timer.data = (unsigned long) phba;
  	/* Fabric block timer */
  	init_timer(&phba->fabric_block_timer);
  	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
  	phba->fabric_block_timer.data = (unsigned long) phba;
  	/* EA polling mode timer */
  	init_timer(&phba->eratt_poll);
  	phba->eratt_poll.function = lpfc_poll_eratt;
  	phba->eratt_poll.data = (unsigned long) phba;
  
  	/* Host attention work mask setup */
  	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
  	phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
  
  	/* Get all the module params for configuring this host */
  	lpfc_get_cfgparam(phba);
  	if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
  		phba->menlo_flag |= HBA_MENLO_SUPPORT;
  		/* check for menlo minimum sg count */
  		if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
  			phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
  	}
  
  	/*
  	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
  	 * used to create the sg_dma_buf_pool must be dynamically calculated.
  	 * 2 segments are added since the IOCB needs a command and response bde.
  	 */
  	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
  		sizeof(struct fcp_rsp) +
  			((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
  
  	if (phba->cfg_enable_bg) {
  		phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
  		phba->cfg_sg_dma_buf_size +=
  			phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
  	}
  
  	/* Also reinitialize the host templates with new values. */
  	lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
  	lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
  
  	phba->max_vpi = LPFC_MAX_VPI;
  	/* This will be set to correct value after config_port mbox */
  	phba->max_vports = 0;
  
  	/*
  	 * Initialize the SLI Layer to run with lpfc HBAs.
  	 */
  	lpfc_sli_setup(phba);
  	lpfc_sli_queue_setup(phba);
  
  	/* Allocate device driver memory */
  	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
  		return -ENOMEM;
  
  	return 0;
  }
  
  /**
   * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the driver internal resources set up
   * specific for supporting the SLI-3 HBA device it attached to.
   **/
  static void
  lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
  {
  	/* Free device driver memory allocated */
  	lpfc_mem_free_all(phba);
  
  	return;
  }
  
  /**
   * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up the driver internal resources specific to
   * support the SLI-4 HBA device it attached to.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
  {
  	struct lpfc_sli *psli;
  	LPFC_MBOXQ_t *mboxq;
  	int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
  	uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
  	struct lpfc_mqe *mqe;
  	int longs;
  
  	/* Before proceed, wait for POST done and device ready */
  	rc = lpfc_sli4_post_status_check(phba);
  	if (rc)
  		return -ENODEV;
  
  	/*
  	 * Initialize timers used by driver
  	 */
  
  	/* Heartbeat timer */
  	init_timer(&phba->hb_tmofunc);
  	phba->hb_tmofunc.function = lpfc_hb_timeout;
  	phba->hb_tmofunc.data = (unsigned long)phba;
  
  	psli = &phba->sli;
  	/* MBOX heartbeat timer */
  	init_timer(&psli->mbox_tmo);
  	psli->mbox_tmo.function = lpfc_mbox_timeout;
  	psli->mbox_tmo.data = (unsigned long) phba;
  	/* Fabric block timer */
  	init_timer(&phba->fabric_block_timer);
  	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
  	phba->fabric_block_timer.data = (unsigned long) phba;
  	/* EA polling mode timer */
  	init_timer(&phba->eratt_poll);
  	phba->eratt_poll.function = lpfc_poll_eratt;
  	phba->eratt_poll.data = (unsigned long) phba;
  	/* FCF rediscover timer */
  	init_timer(&phba->fcf.redisc_wait);
  	phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
  	phba->fcf.redisc_wait.data = (unsigned long)phba;
  
  	/*
  	 * We need to do a READ_CONFIG mailbox command here before
  	 * calling lpfc_get_cfgparam. For VFs this will report the
  	 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
  	 * All of the resources allocated
  	 * for this Port are tied to these values.
  	 */
  	/* Get all the module params for configuring this host */
  	lpfc_get_cfgparam(phba);
  	phba->max_vpi = LPFC_MAX_VPI;
  	/* This will be set to correct value after the read_config mbox */
  	phba->max_vports = 0;
  
  	/* Program the default value of vlan_id and fc_map */
  	phba->valid_vlan = 0;
  	phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
  	phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
  	phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
  
  	/*
  	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
  	 * used to create the sg_dma_buf_pool must be dynamically calculated.
  	 * 2 segments are added since the IOCB needs a command and response bde.
  	 * To insure that the scsi sgl does not cross a 4k page boundary only
  	 * sgl sizes of must be a power of 2.
  	 */
  	buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
  		    ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
  	/* Feature Level 1 hardware is limited to 2 pages */
  	if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
  	     LPFC_SLI_INTF_FEATURELEVEL1_1))
  		max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
  	else
  		max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
  	for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
  	     dma_buf_size < max_buf_size && buf_size > dma_buf_size;
  	     dma_buf_size = dma_buf_size << 1)
  		;
  	if (dma_buf_size == max_buf_size)
  		phba->cfg_sg_seg_cnt = (dma_buf_size -
  			sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
  			(2 * sizeof(struct sli4_sge))) /
  				sizeof(struct sli4_sge);
  	phba->cfg_sg_dma_buf_size = dma_buf_size;
  
  	/* Initialize buffer queue management fields */
  	hbq_count = lpfc_sli_hbq_count();
  	for (i = 0; i < hbq_count; ++i)
  		INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
  	INIT_LIST_HEAD(&phba->rb_pend_list);
  	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
  	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
  
  	/*
  	 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
  	 */
  	/* Initialize the Abort scsi buffer list used by driver */
  	spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
  	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
  	/* This abort list used by worker thread */
  	spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
  
  	/*
  	 * Initialize dirver internal slow-path work queues
  	 */
  
  	/* Driver internel slow-path CQ Event pool */
  	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
  	/* Response IOCB work queue list */
  	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
  	/* Asynchronous event CQ Event work queue list */
  	INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
  	/* Fast-path XRI aborted CQ Event work queue list */
  	INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
  	/* Slow-path XRI aborted CQ Event work queue list */
  	INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
  	/* Receive queue CQ Event work queue list */
  	INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
  
  	/* Initialize the driver internal SLI layer lists. */
  	lpfc_sli_setup(phba);
  	lpfc_sli_queue_setup(phba);
  
  	/* Allocate device driver memory */
  	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
  	if (rc)
  		return -ENOMEM;
  
  	/* Create the bootstrap mailbox command */
  	rc = lpfc_create_bootstrap_mbox(phba);
  	if (unlikely(rc))
  		goto out_free_mem;
  
  	/* Set up the host's endian order with the device. */
  	rc = lpfc_setup_endian_order(phba);
  	if (unlikely(rc))
  		goto out_free_bsmbx;
  
  	rc = lpfc_sli4_fw_cfg_check(phba);
  	if (unlikely(rc))
  		goto out_free_bsmbx;
  
  	/* Set up the hba's configuration parameters. */
  	rc = lpfc_sli4_read_config(phba);
  	if (unlikely(rc))
  		goto out_free_bsmbx;
  
  	/* Perform a function reset */
  	rc = lpfc_pci_function_reset(phba);
  	if (unlikely(rc))
  		goto out_free_bsmbx;
  
  	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
  						       GFP_KERNEL);
  	if (!mboxq) {
  		rc = -ENOMEM;
  		goto out_free_bsmbx;
  	}
  
  	/* Get the Supported Pages. It is always available. */
  	lpfc_supported_pages(mboxq);
  	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  	if (unlikely(rc)) {
  		rc = -EIO;
  		mempool_free(mboxq, phba->mbox_mem_pool);
  		goto out_free_bsmbx;
  	}
  
  	mqe = &mboxq->u.mqe;
  	memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
  	       LPFC_MAX_SUPPORTED_PAGES);
  	for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
  		switch (pn_page[i]) {
  		case LPFC_SLI4_PARAMETERS:
  			phba->sli4_hba.pc_sli4_params.supported = 1;
  			break;
  		default:
  			break;
  		}
  	}
  
  	/* Read the port's SLI4 Parameters capabilities if supported. */
  	if (phba->sli4_hba.pc_sli4_params.supported)
  		rc = lpfc_pc_sli4_params_get(phba, mboxq);
  	mempool_free(mboxq, phba->mbox_mem_pool);
  	if (rc) {
  		rc = -EIO;
  		goto out_free_bsmbx;
  	}
  	/* Create all the SLI4 queues */
  	rc = lpfc_sli4_queue_create(phba);
  	if (rc)
  		goto out_free_bsmbx;
  
  	/* Create driver internal CQE event pool */
  	rc = lpfc_sli4_cq_event_pool_create(phba);
  	if (rc)
  		goto out_destroy_queue;
  
  	/* Initialize and populate the iocb list per host */
  	rc = lpfc_init_sgl_list(phba);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1400 Failed to initialize sgl list.\n");
  		goto out_destroy_cq_event_pool;
  	}
  	rc = lpfc_init_active_sgl_array(phba);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1430 Failed to initialize sgl list.\n");
  		goto out_free_sgl_list;
  	}
  
  	rc = lpfc_sli4_init_rpi_hdrs(phba);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1432 Failed to initialize rpi headers.\n");
  		goto out_free_active_sgl;
  	}
  
  	/* Allocate eligible FCF bmask memory for FCF round robin failover */
  	longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
  	phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
  					 GFP_KERNEL);
  	if (!phba->fcf.fcf_rr_bmask) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2759 Failed allocate memory for FCF round "
  				"robin failover bmask\n");
  		goto out_remove_rpi_hdrs;
  	}
  
  	phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
  				    phba->cfg_fcp_eq_count), GFP_KERNEL);
  	if (!phba->sli4_hba.fcp_eq_hdl) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2572 Failed allocate memory for fast-path "
  				"per-EQ handle array\n");
  		goto out_free_fcf_rr_bmask;
  	}
  
  	phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
  				      phba->sli4_hba.cfg_eqn), GFP_KERNEL);
  	if (!phba->sli4_hba.msix_entries) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2573 Failed allocate memory for msi-x "
  				"interrupt vector entries\n");
  		goto out_free_fcp_eq_hdl;
  	}
  
  	return rc;
  
  out_free_fcp_eq_hdl:
  	kfree(phba->sli4_hba.fcp_eq_hdl);
  out_free_fcf_rr_bmask:
  	kfree(phba->fcf.fcf_rr_bmask);
  out_remove_rpi_hdrs:
  	lpfc_sli4_remove_rpi_hdrs(phba);
  out_free_active_sgl:
  	lpfc_free_active_sgl(phba);
  out_free_sgl_list:
  	lpfc_free_sgl_list(phba);
  out_destroy_cq_event_pool:
  	lpfc_sli4_cq_event_pool_destroy(phba);
  out_destroy_queue:
  	lpfc_sli4_queue_destroy(phba);
  out_free_bsmbx:
  	lpfc_destroy_bootstrap_mbox(phba);
  out_free_mem:
  	lpfc_mem_free(phba);
  	return rc;
  }
  
  /**
   * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the driver internal resources set up
   * specific for supporting the SLI-4 HBA device it attached to.
   **/
  static void
  lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
  {
  	struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
  
  	/* unregister default FCFI from the HBA */
  	lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
  
  	/* Free the default FCR table */
  	lpfc_sli_remove_dflt_fcf(phba);
  
  	/* Free memory allocated for msi-x interrupt vector entries */
  	kfree(phba->sli4_hba.msix_entries);
  
  	/* Free memory allocated for fast-path work queue handles */
  	kfree(phba->sli4_hba.fcp_eq_hdl);
  
  	/* Free the allocated rpi headers. */
  	lpfc_sli4_remove_rpi_hdrs(phba);
  	lpfc_sli4_remove_rpis(phba);
  
  	/* Free eligible FCF index bmask */
  	kfree(phba->fcf.fcf_rr_bmask);
  
  	/* Free the ELS sgl list */
  	lpfc_free_active_sgl(phba);
  	lpfc_free_sgl_list(phba);
  
  	/* Free the SCSI sgl management array */
  	kfree(phba->sli4_hba.lpfc_scsi_psb_array);
  
  	/* Free the SLI4 queues */
  	lpfc_sli4_queue_destroy(phba);
  
  	/* Free the completion queue EQ event pool */
  	lpfc_sli4_cq_event_release_all(phba);
  	lpfc_sli4_cq_event_pool_destroy(phba);
  
  	/* Reset SLI4 HBA FCoE function */
  	lpfc_pci_function_reset(phba);
  
  	/* Free the bsmbx region. */
  	lpfc_destroy_bootstrap_mbox(phba);
  
  	/* Free the SLI Layer memory with SLI4 HBAs */
  	lpfc_mem_free_all(phba);
  
  	/* Free the current connect table */
  	list_for_each_entry_safe(conn_entry, next_conn_entry,
  		&phba->fcf_conn_rec_list, list) {
  		list_del_init(&conn_entry->list);
  		kfree(conn_entry);
  	}
  
  	return;
  }
  
  /**
   * lpfc_init_api_table_setup - Set up init api fucntion jump table
   * @phba: The hba struct for which this call is being executed.
   * @dev_grp: The HBA PCI-Device group number.
   *
   * This routine sets up the device INIT interface API function jump table
   * in @phba struct.
   *
   * Returns: 0 - success, -ENODEV - failure.
   **/
  int
  lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
  {
  	phba->lpfc_hba_init_link = lpfc_hba_init_link;
  	phba->lpfc_hba_down_link = lpfc_hba_down_link;
  	switch (dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
  		phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
  		phba->lpfc_stop_port = lpfc_stop_port_s3;
  		break;
  	case LPFC_PCI_DEV_OC:
  		phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
  		phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
  		phba->lpfc_stop_port = lpfc_stop_port_s4;
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1431 Invalid HBA PCI-device group: 0x%x\n",
  				dev_grp);
  		return -ENODEV;
  		break;
  	}
  	return 0;
  }
  
  /**
   * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up the driver internal resources before the
   * device specific resource setup to support the HBA device it attached to.
   *
   * Return codes
   *	0 - successful
   *	other values - error
   **/
  static int
  lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
  {
  	/*
  	 * Driver resources common to all SLI revisions
  	 */
  	atomic_set(&phba->fast_event_count, 0);
  	spin_lock_init(&phba->hbalock);
  
  	/* Initialize ndlp management spinlock */
  	spin_lock_init(&phba->ndlp_lock);
  
  	INIT_LIST_HEAD(&phba->port_list);
  	INIT_LIST_HEAD(&phba->work_list);
  	init_waitqueue_head(&phba->wait_4_mlo_m_q);
  
  	/* Initialize the wait queue head for the kernel thread */
  	init_waitqueue_head(&phba->work_waitq);
  
  	/* Initialize the scsi buffer list used by driver for scsi IO */
  	spin_lock_init(&phba->scsi_buf_list_lock);
  	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
  
  	/* Initialize the fabric iocb list */
  	INIT_LIST_HEAD(&phba->fabric_iocb_list);
  
  	/* Initialize list to save ELS buffers */
  	INIT_LIST_HEAD(&phba->elsbuf);
  
  	/* Initialize FCF connection rec list */
  	INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
  
  	return 0;
  }
  
  /**
   * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up the driver internal resources after the
   * device specific resource setup to support the HBA device it attached to.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
  {
  	int error;
  
  	/* Startup the kernel thread for this host adapter. */
  	phba->worker_thread = kthread_run(lpfc_do_work, phba,
  					  "lpfc_worker_%d", phba->brd_no);
  	if (IS_ERR(phba->worker_thread)) {
  		error = PTR_ERR(phba->worker_thread);
  		return error;
  	}
  
  	return 0;
  }
  
  /**
   * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the driver internal resources set up after
   * the device specific resource setup for supporting the HBA device it
   * attached to.
   **/
  static void
  lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
  {
  	/* Stop kernel worker thread */
  	kthread_stop(phba->worker_thread);
  }
  
  /**
   * lpfc_free_iocb_list - Free iocb list.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to free the driver's IOCB list and memory.
   **/
  static void
  lpfc_free_iocb_list(struct lpfc_hba *phba)
  {
  	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
  
  	spin_lock_irq(&phba->hbalock);
  	list_for_each_entry_safe(iocbq_entry, iocbq_next,
  				 &phba->lpfc_iocb_list, list) {
  		list_del(&iocbq_entry->list);
  		kfree(iocbq_entry);
  		phba->total_iocbq_bufs--;
  	}
  	spin_unlock_irq(&phba->hbalock);
  
  	return;
  }
  
  /**
   * lpfc_init_iocb_list - Allocate and initialize iocb list.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to allocate and initizlize the driver's IOCB
   * list and set up the IOCB tag array accordingly.
   *
   * Return codes
   *	0 - successful
   *	other values - error
   **/
  static int
  lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
  {
  	struct lpfc_iocbq *iocbq_entry = NULL;
  	uint16_t iotag;
  	int i;
  
  	/* Initialize and populate the iocb list per host.  */
  	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
  	for (i = 0; i < iocb_count; i++) {
  		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
  		if (iocbq_entry == NULL) {
  			printk(KERN_ERR "%s: only allocated %d iocbs of "
  				"expected %d count. Unloading driver.\n",
  				__func__, i, LPFC_IOCB_LIST_CNT);
  			goto out_free_iocbq;
  		}
  
  		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
  		if (iotag == 0) {
  			kfree(iocbq_entry);
  			printk(KERN_ERR "%s: failed to allocate IOTAG. "
  				"Unloading driver.\n", __func__);
  			goto out_free_iocbq;
  		}
  		iocbq_entry->sli4_xritag = NO_XRI;
  
  		spin_lock_irq(&phba->hbalock);
  		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
  		phba->total_iocbq_bufs++;
  		spin_unlock_irq(&phba->hbalock);
  	}
  
  	return 0;
  
  out_free_iocbq:
  	lpfc_free_iocb_list(phba);
  
  	return -ENOMEM;
  }
  
  /**
   * lpfc_free_sgl_list - Free sgl list.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to free the driver's sgl list and memory.
   **/
  static void
  lpfc_free_sgl_list(struct lpfc_hba *phba)
  {
  	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
  	LIST_HEAD(sglq_list);
  	int rc = 0;
  
  	spin_lock_irq(&phba->hbalock);
  	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
  	spin_unlock_irq(&phba->hbalock);
  
  	list_for_each_entry_safe(sglq_entry, sglq_next,
  				 &sglq_list, list) {
  		list_del(&sglq_entry->list);
  		lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
  		kfree(sglq_entry);
  		phba->sli4_hba.total_sglq_bufs--;
  	}
  	rc = lpfc_sli4_remove_all_sgl_pages(phba);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  			"2005 Unable to deregister pages from HBA: %x\n", rc);
  	}
  	kfree(phba->sli4_hba.lpfc_els_sgl_array);
  }
  
  /**
   * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to allocate the driver's active sgl memory.
   * This array will hold the sglq_entry's for active IOs.
   **/
  static int
  lpfc_init_active_sgl_array(struct lpfc_hba *phba)
  {
  	int size;
  	size = sizeof(struct lpfc_sglq *);
  	size *= phba->sli4_hba.max_cfg_param.max_xri;
  
  	phba->sli4_hba.lpfc_sglq_active_list =
  		kzalloc(size, GFP_KERNEL);
  	if (!phba->sli4_hba.lpfc_sglq_active_list)
  		return -ENOMEM;
  	return 0;
  }
  
  /**
   * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to walk through the array of active sglq entries
   * and free all of the resources.
   * This is just a place holder for now.
   **/
  static void
  lpfc_free_active_sgl(struct lpfc_hba *phba)
  {
  	kfree(phba->sli4_hba.lpfc_sglq_active_list);
  }
  
  /**
   * lpfc_init_sgl_list - Allocate and initialize sgl list.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to allocate and initizlize the driver's sgl
   * list and set up the sgl xritag tag array accordingly.
   *
   * Return codes
   *	0 - successful
   *	other values - error
   **/
  static int
  lpfc_init_sgl_list(struct lpfc_hba *phba)
  {
  	struct lpfc_sglq *sglq_entry = NULL;
  	int i;
  	int els_xri_cnt;
  
  	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
  	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
  				"2400 lpfc_init_sgl_list els %d.\n",
  				els_xri_cnt);
  	/* Initialize and populate the sglq list per host/VF. */
  	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
  	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
  
  	/* Sanity check on XRI management */
  	if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2562 No room left for SCSI XRI allocation: "
  				"max_xri=%d, els_xri=%d\n",
  				phba->sli4_hba.max_cfg_param.max_xri,
  				els_xri_cnt);
  		return -ENOMEM;
  	}
  
  	/* Allocate memory for the ELS XRI management array */
  	phba->sli4_hba.lpfc_els_sgl_array =
  			kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
  			GFP_KERNEL);
  
  	if (!phba->sli4_hba.lpfc_els_sgl_array) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2401 Failed to allocate memory for ELS "
  				"XRI management array of size %d.\n",
  				els_xri_cnt);
  		return -ENOMEM;
  	}
  
  	/* Keep the SCSI XRI into the XRI management array */
  	phba->sli4_hba.scsi_xri_max =
  			phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
  	phba->sli4_hba.scsi_xri_cnt = 0;
  
  	phba->sli4_hba.lpfc_scsi_psb_array =
  			kzalloc((sizeof(struct lpfc_scsi_buf *) *
  			phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
  
  	if (!phba->sli4_hba.lpfc_scsi_psb_array) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2563 Failed to allocate memory for SCSI "
  				"XRI management array of size %d.\n",
  				phba->sli4_hba.scsi_xri_max);
  		kfree(phba->sli4_hba.lpfc_els_sgl_array);
  		return -ENOMEM;
  	}
  
  	for (i = 0; i < els_xri_cnt; i++) {
  		sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
  		if (sglq_entry == NULL) {
  			printk(KERN_ERR "%s: only allocated %d sgls of "
  				"expected %d count. Unloading driver.\n",
  				__func__, i, els_xri_cnt);
  			goto out_free_mem;
  		}
  
  		sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
  		if (sglq_entry->sli4_xritag == NO_XRI) {
  			kfree(sglq_entry);
  			printk(KERN_ERR "%s: failed to allocate XRI.\n"
  				"Unloading driver.\n", __func__);
  			goto out_free_mem;
  		}
  		sglq_entry->buff_type = GEN_BUFF_TYPE;
  		sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
  		if (sglq_entry->virt == NULL) {
  			kfree(sglq_entry);
  			printk(KERN_ERR "%s: failed to allocate mbuf.\n"
  				"Unloading driver.\n", __func__);
  			goto out_free_mem;
  		}
  		sglq_entry->sgl = sglq_entry->virt;
  		memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
  
  		/* The list order is used by later block SGL registraton */
  		spin_lock_irq(&phba->hbalock);
  		sglq_entry->state = SGL_FREED;
  		list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
  		phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
  		phba->sli4_hba.total_sglq_bufs++;
  		spin_unlock_irq(&phba->hbalock);
  	}
  	return 0;
  
  out_free_mem:
  	kfree(phba->sli4_hba.lpfc_scsi_psb_array);
  	lpfc_free_sgl_list(phba);
  	return -ENOMEM;
  }
  
  /**
   * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to post rpi header templates to the
   * HBA consistent with the SLI-4 interface spec.  This routine
   * posts a PAGE_SIZE memory region to the port to hold up to
   * PAGE_SIZE modulo 64 rpi context headers.
   * No locks are held here because this is an initialization routine
   * called only from probe or lpfc_online when interrupts are not
   * enabled and the driver is reinitializing the device.
   *
   * Return codes
   * 	0 - successful
   * 	ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  int
  lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
  {
  	int rc = 0;
  	int longs;
  	uint16_t rpi_count;
  	struct lpfc_rpi_hdr *rpi_hdr;
  
  	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
  
  	/*
  	 * Provision an rpi bitmask range for discovery. The total count
  	 * is the difference between max and base + 1.
  	 */
  	rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
  		    phba->sli4_hba.max_cfg_param.max_rpi - 1;
  
  	longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
  	phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
  					   GFP_KERNEL);
  	if (!phba->sli4_hba.rpi_bmask)
  		return -ENOMEM;
  
  	rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
  	if (!rpi_hdr) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
  				"0391 Error during rpi post operation\n");
  		lpfc_sli4_remove_rpis(phba);
  		rc = -ENODEV;
  	}
  
  	return rc;
  }
  
  /**
   * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to allocate a single 4KB memory region to
   * support rpis and stores them in the phba.  This single region
   * provides support for up to 64 rpis.  The region is used globally
   * by the device.
   *
   * Returns:
   *   A valid rpi hdr on success.
   *   A NULL pointer on any failure.
   **/
  struct lpfc_rpi_hdr *
  lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
  {
  	uint16_t rpi_limit, curr_rpi_range;
  	struct lpfc_dmabuf *dmabuf;
  	struct lpfc_rpi_hdr *rpi_hdr;
  
  	rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
  		    phba->sli4_hba.max_cfg_param.max_rpi - 1;
  
  	spin_lock_irq(&phba->hbalock);
  	curr_rpi_range = phba->sli4_hba.next_rpi;
  	spin_unlock_irq(&phba->hbalock);
  
  	/*
  	 * The port has a limited number of rpis. The increment here
  	 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
  	 * and to allow the full max_rpi range per port.
  	 */
  	if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
  		return NULL;
  
  	/*
  	 * First allocate the protocol header region for the port.  The
  	 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
  	 */
  	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
  	if (!dmabuf)
  		return NULL;
  
  	dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
  					  LPFC_HDR_TEMPLATE_SIZE,
  					  &dmabuf->phys,
  					  GFP_KERNEL);
  	if (!dmabuf->virt) {
  		rpi_hdr = NULL;
  		goto err_free_dmabuf;
  	}
  
  	memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
  	if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
  		rpi_hdr = NULL;
  		goto err_free_coherent;
  	}
  
  	/* Save the rpi header data for cleanup later. */
  	rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
  	if (!rpi_hdr)
  		goto err_free_coherent;
  
  	rpi_hdr->dmabuf = dmabuf;
  	rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
  	rpi_hdr->page_count = 1;
  	spin_lock_irq(&phba->hbalock);
  	rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
  	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
  
  	/*
  	 * The next_rpi stores the next module-64 rpi value to post
  	 * in any subsequent rpi memory region postings.
  	 */
  	phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
  	spin_unlock_irq(&phba->hbalock);
  	return rpi_hdr;
  
   err_free_coherent:
  	dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
  			  dmabuf->virt, dmabuf->phys);
   err_free_dmabuf:
  	kfree(dmabuf);
  	return NULL;
  }
  
  /**
   * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to remove all memory resources allocated
   * to support rpis. This routine presumes the caller has released all
   * rpis consumed by fabric or port logins and is prepared to have
   * the header pages removed.
   **/
  void
  lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
  {
  	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
  
  	list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
  				 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
  		list_del(&rpi_hdr->list);
  		dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
  				  rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
  		kfree(rpi_hdr->dmabuf);
  		kfree(rpi_hdr);
  	}
  
  	phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
  	memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
  }
  
  /**
   * lpfc_hba_alloc - Allocate driver hba data structure for a device.
   * @pdev: pointer to pci device data structure.
   *
   * This routine is invoked to allocate the driver hba data structure for an
   * HBA device. If the allocation is successful, the phba reference to the
   * PCI device data structure is set.
   *
   * Return codes
   *      pointer to @phba - successful
   *      NULL - error
   **/
  static struct lpfc_hba *
  lpfc_hba_alloc(struct pci_dev *pdev)
  {
  	struct lpfc_hba *phba;
  
  	/* Allocate memory for HBA structure */
  	phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
  	if (!phba) {
  		dev_err(&pdev->dev, "failed to allocate hba struct\n");
  		return NULL;
  	}
  
  	/* Set reference to PCI device in HBA structure */
  	phba->pcidev = pdev;
  
  	/* Assign an unused board number */
  	phba->brd_no = lpfc_get_instance();
  	if (phba->brd_no < 0) {
  		kfree(phba);
  		return NULL;
  	}
  
  	spin_lock_init(&phba->ct_ev_lock);
  	INIT_LIST_HEAD(&phba->ct_ev_waiters);
  
  	return phba;
  }
  
  /**
   * lpfc_hba_free - Free driver hba data structure with a device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to free the driver hba data structure with an
   * HBA device.
   **/
  static void
  lpfc_hba_free(struct lpfc_hba *phba)
  {
  	/* Release the driver assigned board number */
  	idr_remove(&lpfc_hba_index, phba->brd_no);
  
  	kfree(phba);
  	return;
  }
  
  /**
   * lpfc_create_shost - Create hba physical port with associated scsi host.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to create HBA physical port and associate a SCSI
   * host with it.
   *
   * Return codes
   *      0 - successful
   *      other values - error
   **/
  static int
  lpfc_create_shost(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport;
  	struct Scsi_Host  *shost;
  
  	/* Initialize HBA FC structure */
  	phba->fc_edtov = FF_DEF_EDTOV;
  	phba->fc_ratov = FF_DEF_RATOV;
  	phba->fc_altov = FF_DEF_ALTOV;
  	phba->fc_arbtov = FF_DEF_ARBTOV;
  
  	vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
  	if (!vport)
  		return -ENODEV;
  
  	shost = lpfc_shost_from_vport(vport);
  	phba->pport = vport;
  	lpfc_debugfs_initialize(vport);
  	/* Put reference to SCSI host to driver's device private data */
  	pci_set_drvdata(phba->pcidev, shost);
  
  	return 0;
  }
  
  /**
   * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to destroy HBA physical port and the associated
   * SCSI host.
   **/
  static void
  lpfc_destroy_shost(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  
  	/* Destroy physical port that associated with the SCSI host */
  	destroy_port(vport);
  
  	return;
  }
  
  /**
   * lpfc_setup_bg - Setup Block guard structures and debug areas.
   * @phba: pointer to lpfc hba data structure.
   * @shost: the shost to be used to detect Block guard settings.
   *
   * This routine sets up the local Block guard protocol settings for @shost.
   * This routine also allocates memory for debugging bg buffers.
   **/
  static void
  lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
  {
  	int pagecnt = 10;
  	if (lpfc_prot_mask && lpfc_prot_guard) {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"1478 Registering BlockGuard with the "
  				"SCSI layer\n");
  		scsi_host_set_prot(shost, lpfc_prot_mask);
  		scsi_host_set_guard(shost, lpfc_prot_guard);
  	}
  	if (!_dump_buf_data) {
  		while (pagecnt) {
  			spin_lock_init(&_dump_buf_lock);
  			_dump_buf_data =
  				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
  			if (_dump_buf_data) {
  				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
  					"9043 BLKGRD: allocated %d pages for "
  				       "_dump_buf_data at 0x%p\n",
  				       (1 << pagecnt), _dump_buf_data);
  				_dump_buf_data_order = pagecnt;
  				memset(_dump_buf_data, 0,
  				       ((1 << PAGE_SHIFT) << pagecnt));
  				break;
  			} else
  				--pagecnt;
  		}
  		if (!_dump_buf_data_order)
  			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
  				"9044 BLKGRD: ERROR unable to allocate "
  			       "memory for hexdump\n");
  	} else
  		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
  			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
  		       "\n", _dump_buf_data);
  	if (!_dump_buf_dif) {
  		while (pagecnt) {
  			_dump_buf_dif =
  				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
  			if (_dump_buf_dif) {
  				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
  					"9046 BLKGRD: allocated %d pages for "
  				       "_dump_buf_dif at 0x%p\n",
  				       (1 << pagecnt), _dump_buf_dif);
  				_dump_buf_dif_order = pagecnt;
  				memset(_dump_buf_dif, 0,
  				       ((1 << PAGE_SHIFT) << pagecnt));
  				break;
  			} else
  				--pagecnt;
  		}
  		if (!_dump_buf_dif_order)
  			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
  			"9047 BLKGRD: ERROR unable to allocate "
  			       "memory for hexdump\n");
  	} else
  		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
  			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
  		       _dump_buf_dif);
  }
  
  /**
   * lpfc_post_init_setup - Perform necessary device post initialization setup.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to perform all the necessary post initialization
   * setup for the device.
   **/
  static void
  lpfc_post_init_setup(struct lpfc_hba *phba)
  {
  	struct Scsi_Host  *shost;
  	struct lpfc_adapter_event_header adapter_event;
  
  	/* Get the default values for Model Name and Description */
  	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
  
  	/*
  	 * hba setup may have changed the hba_queue_depth so we need to
  	 * adjust the value of can_queue.
  	 */
  	shost = pci_get_drvdata(phba->pcidev);
  	shost->can_queue = phba->cfg_hba_queue_depth - 10;
  	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
  		lpfc_setup_bg(phba, shost);
  
  	lpfc_host_attrib_init(shost);
  
  	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
  		spin_lock_irq(shost->host_lock);
  		lpfc_poll_start_timer(phba);
  		spin_unlock_irq(shost->host_lock);
  	}
  
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"0428 Perform SCSI scan\n");
  	/* Send board arrival event to upper layer */
  	adapter_event.event_type = FC_REG_ADAPTER_EVENT;
  	adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
  	fc_host_post_vendor_event(shost, fc_get_event_number(),
  				  sizeof(adapter_event),
  				  (char *) &adapter_event,
  				  LPFC_NL_VENDOR_ID);
  	return;
  }
  
  /**
   * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up the PCI device memory space for device
   * with SLI-3 interface spec.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
  {
  	struct pci_dev *pdev;
  	unsigned long bar0map_len, bar2map_len;
  	int i, hbq_count;
  	void *ptr;
  	int error = -ENODEV;
  
  	/* Obtain PCI device reference */
  	if (!phba->pcidev)
  		return error;
  	else
  		pdev = phba->pcidev;
  
  	/* Set the device DMA mask size */
  	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
  	 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
  		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
  		 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
  			return error;
  		}
  	}
  
  	/* Get the bus address of Bar0 and Bar2 and the number of bytes
  	 * required by each mapping.
  	 */
  	phba->pci_bar0_map = pci_resource_start(pdev, 0);
  	bar0map_len = pci_resource_len(pdev, 0);
  
  	phba->pci_bar2_map = pci_resource_start(pdev, 2);
  	bar2map_len = pci_resource_len(pdev, 2);
  
  	/* Map HBA SLIM to a kernel virtual address. */
  	phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
  	if (!phba->slim_memmap_p) {
  		dev_printk(KERN_ERR, &pdev->dev,
  			   "ioremap failed for SLIM memory.\n");
  		goto out;
  	}
  
  	/* Map HBA Control Registers to a kernel virtual address. */
  	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
  	if (!phba->ctrl_regs_memmap_p) {
  		dev_printk(KERN_ERR, &pdev->dev,
  			   "ioremap failed for HBA control registers.\n");
  		goto out_iounmap_slim;
  	}
  
  	/* Allocate memory for SLI-2 structures */
  	phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
  					       SLI2_SLIM_SIZE,
  					       &phba->slim2p.phys,
  					       GFP_KERNEL);
  	if (!phba->slim2p.virt)
  		goto out_iounmap;
  
  	memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
  	phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
  	phba->mbox_ext = (phba->slim2p.virt +
  		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
  	phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
  	phba->IOCBs = (phba->slim2p.virt +
  		       offsetof(struct lpfc_sli2_slim, IOCBs));
  
  	phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
  						 lpfc_sli_hbq_size(),
  						 &phba->hbqslimp.phys,
  						 GFP_KERNEL);
  	if (!phba->hbqslimp.virt)
  		goto out_free_slim;
  
  	hbq_count = lpfc_sli_hbq_count();
  	ptr = phba->hbqslimp.virt;
  	for (i = 0; i < hbq_count; ++i) {
  		phba->hbqs[i].hbq_virt = ptr;
  		INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
  		ptr += (lpfc_hbq_defs[i]->entry_count *
  			sizeof(struct lpfc_hbq_entry));
  	}
  	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
  	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
  
  	memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
  
  	INIT_LIST_HEAD(&phba->rb_pend_list);
  
  	phba->MBslimaddr = phba->slim_memmap_p;
  	phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
  	phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
  	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
  	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
  
  	return 0;
  
  out_free_slim:
  	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
  			  phba->slim2p.virt, phba->slim2p.phys);
  out_iounmap:
  	iounmap(phba->ctrl_regs_memmap_p);
  out_iounmap_slim:
  	iounmap(phba->slim_memmap_p);
  out:
  	return error;
  }
  
  /**
   * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the PCI device memory space for device
   * with SLI-3 interface spec.
   **/
  static void
  lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
  {
  	struct pci_dev *pdev;
  
  	/* Obtain PCI device reference */
  	if (!phba->pcidev)
  		return;
  	else
  		pdev = phba->pcidev;
  
  	/* Free coherent DMA memory allocated */
  	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
  			  phba->hbqslimp.virt, phba->hbqslimp.phys);
  	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
  			  phba->slim2p.virt, phba->slim2p.phys);
  
  	/* I/O memory unmap */
  	iounmap(phba->ctrl_regs_memmap_p);
  	iounmap(phba->slim_memmap_p);
  
  	return;
  }
  
  /**
   * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
   * done and check status.
   *
   * Return 0 if successful, otherwise -ENODEV.
   **/
  int
  lpfc_sli4_post_status_check(struct lpfc_hba *phba)
  {
  	struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
  	int i, port_error = -ENODEV;
  
  	if (!phba->sli4_hba.STAregaddr)
  		return -ENODEV;
  
  	/* Wait up to 30 seconds for the SLI Port POST done and ready */
  	for (i = 0; i < 3000; i++) {
  		sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
  		/* Encounter fatal POST error, break out */
  		if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
  			port_error = -ENODEV;
  			break;
  		}
  		if (LPFC_POST_STAGE_ARMFW_READY ==
  		    bf_get(lpfc_hst_state_port_status, &sta_reg)) {
  			port_error = 0;
  			break;
  		}
  		msleep(10);
  	}
  
  	if (port_error)
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"1408 Failure HBA POST Status: sta_reg=0x%x, "
  			"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
  			"dl=x%x, pstatus=x%x\n", sta_reg.word0,
  			bf_get(lpfc_hst_state_perr, &sta_reg),
  			bf_get(lpfc_hst_state_sfi, &sta_reg),
  			bf_get(lpfc_hst_state_nip, &sta_reg),
  			bf_get(lpfc_hst_state_ipc, &sta_reg),
  			bf_get(lpfc_hst_state_xrom, &sta_reg),
  			bf_get(lpfc_hst_state_dl, &sta_reg),
  			bf_get(lpfc_hst_state_port_status, &sta_reg));
  
  	/* Log device information */
  	phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
  	if (bf_get(lpfc_sli_intf_valid,
  		   &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
  				"FeatureL1=0x%x, FeatureL2=0x%x\n",
  				bf_get(lpfc_sli_intf_sli_family,
  				       &phba->sli4_hba.sli_intf),
  				bf_get(lpfc_sli_intf_slirev,
  				       &phba->sli4_hba.sli_intf),
  				bf_get(lpfc_sli_intf_featurelevel1,
  				       &phba->sli4_hba.sli_intf),
  				bf_get(lpfc_sli_intf_featurelevel2,
  				       &phba->sli4_hba.sli_intf));
  	}
  	phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
  	phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
  	/* With uncoverable error, log the error message and return error */
  	uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
  	uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
  	if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
  	    (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1422 HBA Unrecoverable error: "
  				"uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
  				"ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
  				uerrlo_reg.word0, uerrhi_reg.word0,
  				phba->sli4_hba.ue_mask_lo,
  				phba->sli4_hba.ue_mask_hi);
  		return -ENODEV;
  	}
  
  	return port_error;
  }
  
  /**
   * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up SLI4 BAR0 PCI config space register
   * memory map.
   **/
  static void
  lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
  {
  	phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
  					LPFC_UERR_STATUS_LO;
  	phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
  					LPFC_UERR_STATUS_HI;
  	phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
  					LPFC_UE_MASK_LO;
  	phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
  					LPFC_UE_MASK_HI;
  	phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
  					LPFC_SLI_INTF;
  }
  
  /**
   * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
   * memory map.
   **/
  static void
  lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
  {
  
  	phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
  				    LPFC_HST_STATE;
  	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
  				    LPFC_HST_ISR0;
  	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
  				    LPFC_HST_IMR0;
  	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
  				     LPFC_HST_ISCR0;
  	return;
  }
  
  /**
   * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
   * @phba: pointer to lpfc hba data structure.
   * @vf: virtual function number
   *
   * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
   * based on the given viftual function number, @vf.
   *
   * Return 0 if successful, otherwise -ENODEV.
   **/
  static int
  lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
  {
  	if (vf > LPFC_VIR_FUNC_MAX)
  		return -ENODEV;
  
  	phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
  				vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
  	phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
  				vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
  	phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
  				vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
  	phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
  				vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
  	phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
  				vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
  	return 0;
  }
  
  /**
   * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to create the bootstrap mailbox
   * region consistent with the SLI-4 interface spec.  This
   * routine allocates all memory necessary to communicate
   * mailbox commands to the port and sets up all alignment
   * needs.  No locks are expected to be held when calling
   * this routine.
   *
   * Return codes
   * 	0 - successful
   * 	ENOMEM - could not allocated memory.
   **/
  static int
  lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
  {
  	uint32_t bmbx_size;
  	struct lpfc_dmabuf *dmabuf;
  	struct dma_address *dma_address;
  	uint32_t pa_addr;
  	uint64_t phys_addr;
  
  	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
  	if (!dmabuf)
  		return -ENOMEM;
  
  	/*
  	 * The bootstrap mailbox region is comprised of 2 parts
  	 * plus an alignment restriction of 16 bytes.
  	 */
  	bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
  	dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
  					  bmbx_size,
  					  &dmabuf->phys,
  					  GFP_KERNEL);
  	if (!dmabuf->virt) {
  		kfree(dmabuf);
  		return -ENOMEM;
  	}
  	memset(dmabuf->virt, 0, bmbx_size);
  
  	/*
  	 * Initialize the bootstrap mailbox pointers now so that the register
  	 * operations are simple later.  The mailbox dma address is required
  	 * to be 16-byte aligned.  Also align the virtual memory as each
  	 * maibox is copied into the bmbx mailbox region before issuing the
  	 * command to the port.
  	 */
  	phba->sli4_hba.bmbx.dmabuf = dmabuf;
  	phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
  
  	phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
  					      LPFC_ALIGN_16_BYTE);
  	phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
  					      LPFC_ALIGN_16_BYTE);
  
  	/*
  	 * Set the high and low physical addresses now.  The SLI4 alignment
  	 * requirement is 16 bytes and the mailbox is posted to the port
  	 * as two 30-bit addresses.  The other data is a bit marking whether
  	 * the 30-bit address is the high or low address.
  	 * Upcast bmbx aphys to 64bits so shift instruction compiles
  	 * clean on 32 bit machines.
  	 */
  	dma_address = &phba->sli4_hba.bmbx.dma_address;
  	phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
  	pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
  	dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
  					   LPFC_BMBX_BIT1_ADDR_HI);
  
  	pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
  	dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
  					   LPFC_BMBX_BIT1_ADDR_LO);
  	return 0;
  }
  
  /**
   * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to teardown the bootstrap mailbox
   * region and release all host resources. This routine requires
   * the caller to ensure all mailbox commands recovered, no
   * additional mailbox comands are sent, and interrupts are disabled
   * before calling this routine.
   *
   **/
  static void
  lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
  {
  	dma_free_coherent(&phba->pcidev->dev,
  			  phba->sli4_hba.bmbx.bmbx_size,
  			  phba->sli4_hba.bmbx.dmabuf->virt,
  			  phba->sli4_hba.bmbx.dmabuf->phys);
  
  	kfree(phba->sli4_hba.bmbx.dmabuf);
  	memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
  }
  
  /**
   * lpfc_sli4_read_config - Get the config parameters.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to read the configuration parameters from the HBA.
   * The configuration parameters are used to set the base and maximum values
   * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
   * allocation for the port.
   *
   * Return codes
   * 	0 - successful
   * 	ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  static int
  lpfc_sli4_read_config(struct lpfc_hba *phba)
  {
  	LPFC_MBOXQ_t *pmb;
  	struct lpfc_mbx_read_config *rd_config;
  	uint32_t rc = 0;
  
  	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmb) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2011 Unable to allocate memory for issuing "
  				"SLI_CONFIG_SPECIAL mailbox command\n");
  		return -ENOMEM;
  	}
  
  	lpfc_read_config(phba, pmb);
  
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
  	if (rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  			"2012 Mailbox failed , mbxCmd x%x "
  			"READ_CONFIG, mbxStatus x%x\n",
  			bf_get(lpfc_mqe_command, &pmb->u.mqe),
  			bf_get(lpfc_mqe_status, &pmb->u.mqe));
  		rc = -EIO;
  	} else {
  		rd_config = &pmb->u.mqe.un.rd_config;
  		phba->sli4_hba.max_cfg_param.max_xri =
  			bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
  		phba->sli4_hba.max_cfg_param.xri_base =
  			bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
  		phba->sli4_hba.max_cfg_param.max_vpi =
  			bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
  		phba->sli4_hba.max_cfg_param.vpi_base =
  			bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
  		phba->sli4_hba.max_cfg_param.max_rpi =
  			bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
  		phba->sli4_hba.max_cfg_param.rpi_base =
  			bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
  		phba->sli4_hba.max_cfg_param.max_vfi =
  			bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
  		phba->sli4_hba.max_cfg_param.vfi_base =
  			bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
  		phba->sli4_hba.max_cfg_param.max_fcfi =
  			bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
  		phba->sli4_hba.max_cfg_param.fcfi_base =
  			bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
  		phba->sli4_hba.max_cfg_param.max_eq =
  			bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
  		phba->sli4_hba.max_cfg_param.max_rq =
  			bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
  		phba->sli4_hba.max_cfg_param.max_wq =
  			bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
  		phba->sli4_hba.max_cfg_param.max_cq =
  			bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
  		phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
  		phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
  		phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
  		phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
  		phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
  		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
  				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
  		phba->max_vports = phba->max_vpi;
  		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
  				"2003 cfg params XRI(B:%d M:%d), "
  				"VPI(B:%d M:%d) "
  				"VFI(B:%d M:%d) "
  				"RPI(B:%d M:%d) "
  				"FCFI(B:%d M:%d)\n",
  				phba->sli4_hba.max_cfg_param.xri_base,
  				phba->sli4_hba.max_cfg_param.max_xri,
  				phba->sli4_hba.max_cfg_param.vpi_base,
  				phba->sli4_hba.max_cfg_param.max_vpi,
  				phba->sli4_hba.max_cfg_param.vfi_base,
  				phba->sli4_hba.max_cfg_param.max_vfi,
  				phba->sli4_hba.max_cfg_param.rpi_base,
  				phba->sli4_hba.max_cfg_param.max_rpi,
  				phba->sli4_hba.max_cfg_param.fcfi_base,
  				phba->sli4_hba.max_cfg_param.max_fcfi);
  	}
  	mempool_free(pmb, phba->mbox_mem_pool);
  
  	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
  	if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
  		phba->cfg_hba_queue_depth =
  				phba->sli4_hba.max_cfg_param.max_xri;
  	return rc;
  }
  
  /**
   * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to setup the host-side endian order to the
   * HBA consistent with the SLI-4 interface spec.
   *
   * Return codes
   * 	0 - successful
   * 	ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  static int
  lpfc_setup_endian_order(struct lpfc_hba *phba)
  {
  	LPFC_MBOXQ_t *mboxq;
  	uint32_t rc = 0;
  	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
  				      HOST_ENDIAN_HIGH_WORD1};
  
  	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!mboxq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0492 Unable to allocate memory for issuing "
  				"SLI_CONFIG_SPECIAL mailbox command\n");
  		return -ENOMEM;
  	}
  
  	/*
  	 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
  	 * words to contain special data values and no other data.
  	 */
  	memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
  	memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
  	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  	if (rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0493 SLI_CONFIG_SPECIAL mailbox failed with "
  				"status x%x\n",
  				rc);
  		rc = -EIO;
  	}
  
  	mempool_free(mboxq, phba->mbox_mem_pool);
  	return rc;
  }
  
  /**
   * lpfc_sli4_queue_create - Create all the SLI4 queues
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
   * operation. For each SLI4 queue type, the parameters such as queue entry
   * count (queue depth) shall be taken from the module parameter. For now,
   * we just use some constant number as place holder.
   *
   * Return codes
   *      0 - successful
   *      ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  static int
  lpfc_sli4_queue_create(struct lpfc_hba *phba)
  {
  	struct lpfc_queue *qdesc;
  	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
  	int cfg_fcp_wq_count;
  	int cfg_fcp_eq_count;
  
  	/*
  	 * Sanity check for confiugred queue parameters against the run-time
  	 * device parameters
  	 */
  
  	/* Sanity check on FCP fast-path WQ parameters */
  	cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
  	if (cfg_fcp_wq_count >
  	    (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
  		cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
  				   LPFC_SP_WQN_DEF;
  		if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"2581 Not enough WQs (%d) from "
  					"the pci function for supporting "
  					"FCP WQs (%d)\n",
  					phba->sli4_hba.max_cfg_param.max_wq,
  					phba->cfg_fcp_wq_count);
  			goto out_error;
  		}
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"2582 Not enough WQs (%d) from the pci "
  				"function for supporting the requested "
  				"FCP WQs (%d), the actual FCP WQs can "
  				"be supported: %d\n",
  				phba->sli4_hba.max_cfg_param.max_wq,
  				phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
  	}
  	/* The actual number of FCP work queues adopted */
  	phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
  
  	/* Sanity check on FCP fast-path EQ parameters */
  	cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
  	if (cfg_fcp_eq_count >
  	    (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
  		cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
  				   LPFC_SP_EQN_DEF;
  		if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"2574 Not enough EQs (%d) from the "
  					"pci function for supporting FCP "
  					"EQs (%d)\n",
  					phba->sli4_hba.max_cfg_param.max_eq,
  					phba->cfg_fcp_eq_count);
  			goto out_error;
  		}
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"2575 Not enough EQs (%d) from the pci "
  				"function for supporting the requested "
  				"FCP EQs (%d), the actual FCP EQs can "
  				"be supported: %d\n",
  				phba->sli4_hba.max_cfg_param.max_eq,
  				phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
  	}
  	/* It does not make sense to have more EQs than WQs */
  	if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"2593 The FCP EQ count(%d) cannot be greater "
  				"than the FCP WQ count(%d), limiting the "
  				"FCP EQ count to %d\n", cfg_fcp_eq_count,
  				phba->cfg_fcp_wq_count,
  				phba->cfg_fcp_wq_count);
  		cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
  	}
  	/* The actual number of FCP event queues adopted */
  	phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
  	/* The overall number of event queues used */
  	phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
  
  	/*
  	 * Create Event Queues (EQs)
  	 */
  
  	/* Get EQ depth from module parameter, fake the default for now */
  	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
  	phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
  
  	/* Create slow path event queue */
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
  				      phba->sli4_hba.eq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0496 Failed allocate slow-path EQ\n");
  		goto out_error;
  	}
  	phba->sli4_hba.sp_eq = qdesc;
  
  	/* Create fast-path FCP Event Queue(s) */
  	phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
  			       phba->cfg_fcp_eq_count), GFP_KERNEL);
  	if (!phba->sli4_hba.fp_eq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2576 Failed allocate memory for fast-path "
  				"EQ record array\n");
  		goto out_free_sp_eq;
  	}
  	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
  		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
  					      phba->sli4_hba.eq_ecount);
  		if (!qdesc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0497 Failed allocate fast-path EQ\n");
  			goto out_free_fp_eq;
  		}
  		phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
  	}
  
  	/*
  	 * Create Complete Queues (CQs)
  	 */
  
  	/* Get CQ depth from module parameter, fake the default for now */
  	phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
  	phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
  
  	/* Create slow-path Mailbox Command Complete Queue */
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
  				      phba->sli4_hba.cq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0500 Failed allocate slow-path mailbox CQ\n");
  		goto out_free_fp_eq;
  	}
  	phba->sli4_hba.mbx_cq = qdesc;
  
  	/* Create slow-path ELS Complete Queue */
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
  				      phba->sli4_hba.cq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0501 Failed allocate slow-path ELS CQ\n");
  		goto out_free_mbx_cq;
  	}
  	phba->sli4_hba.els_cq = qdesc;
  
  
  	/* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
  	phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
  				phba->cfg_fcp_eq_count), GFP_KERNEL);
  	if (!phba->sli4_hba.fcp_cq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2577 Failed allocate memory for fast-path "
  				"CQ record array\n");
  		goto out_free_els_cq;
  	}
  	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
  		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
  					      phba->sli4_hba.cq_ecount);
  		if (!qdesc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0499 Failed allocate fast-path FCP "
  					"CQ (%d)\n", fcp_cqidx);
  			goto out_free_fcp_cq;
  		}
  		phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
  	}
  
  	/* Create Mailbox Command Queue */
  	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
  	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
  
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
  				      phba->sli4_hba.mq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0505 Failed allocate slow-path MQ\n");
  		goto out_free_fcp_cq;
  	}
  	phba->sli4_hba.mbx_wq = qdesc;
  
  	/*
  	 * Create all the Work Queues (WQs)
  	 */
  	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
  	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
  
  	/* Create slow-path ELS Work Queue */
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
  				      phba->sli4_hba.wq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0504 Failed allocate slow-path ELS WQ\n");
  		goto out_free_mbx_wq;
  	}
  	phba->sli4_hba.els_wq = qdesc;
  
  	/* Create fast-path FCP Work Queue(s) */
  	phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
  				phba->cfg_fcp_wq_count), GFP_KERNEL);
  	if (!phba->sli4_hba.fcp_wq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2578 Failed allocate memory for fast-path "
  				"WQ record array\n");
  		goto out_free_els_wq;
  	}
  	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
  		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
  					      phba->sli4_hba.wq_ecount);
  		if (!qdesc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0503 Failed allocate fast-path FCP "
  					"WQ (%d)\n", fcp_wqidx);
  			goto out_free_fcp_wq;
  		}
  		phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
  	}
  
  	/*
  	 * Create Receive Queue (RQ)
  	 */
  	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
  	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
  
  	/* Create Receive Queue for header */
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
  				      phba->sli4_hba.rq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0506 Failed allocate receive HRQ\n");
  		goto out_free_fcp_wq;
  	}
  	phba->sli4_hba.hdr_rq = qdesc;
  
  	/* Create Receive Queue for data */
  	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
  				      phba->sli4_hba.rq_ecount);
  	if (!qdesc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0507 Failed allocate receive DRQ\n");
  		goto out_free_hdr_rq;
  	}
  	phba->sli4_hba.dat_rq = qdesc;
  
  	return 0;
  
  out_free_hdr_rq:
  	lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
  	phba->sli4_hba.hdr_rq = NULL;
  out_free_fcp_wq:
  	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
  		lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
  		phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
  	}
  	kfree(phba->sli4_hba.fcp_wq);
  out_free_els_wq:
  	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
  	phba->sli4_hba.els_wq = NULL;
  out_free_mbx_wq:
  	lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
  	phba->sli4_hba.mbx_wq = NULL;
  out_free_fcp_cq:
  	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
  		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
  		phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
  	}
  	kfree(phba->sli4_hba.fcp_cq);
  out_free_els_cq:
  	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
  	phba->sli4_hba.els_cq = NULL;
  out_free_mbx_cq:
  	lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
  	phba->sli4_hba.mbx_cq = NULL;
  out_free_fp_eq:
  	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
  		lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
  		phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
  	}
  	kfree(phba->sli4_hba.fp_eq);
  out_free_sp_eq:
  	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
  	phba->sli4_hba.sp_eq = NULL;
  out_error:
  	return -ENOMEM;
  }
  
  /**
   * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to release all the SLI4 queues with the FCoE HBA
   * operation.
   *
   * Return codes
   *      0 - successful
   *      ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  static void
  lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
  {
  	int fcp_qidx;
  
  	/* Release mailbox command work queue */
  	lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
  	phba->sli4_hba.mbx_wq = NULL;
  
  	/* Release ELS work queue */
  	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
  	phba->sli4_hba.els_wq = NULL;
  
  	/* Release FCP work queue */
  	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
  		lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
  	kfree(phba->sli4_hba.fcp_wq);
  	phba->sli4_hba.fcp_wq = NULL;
  
  	/* Release unsolicited receive queue */
  	lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
  	phba->sli4_hba.hdr_rq = NULL;
  	lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
  	phba->sli4_hba.dat_rq = NULL;
  
  	/* Release ELS complete queue */
  	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
  	phba->sli4_hba.els_cq = NULL;
  
  	/* Release mailbox command complete queue */
  	lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
  	phba->sli4_hba.mbx_cq = NULL;
  
  	/* Release FCP response complete queue */
  	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
  		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
  	kfree(phba->sli4_hba.fcp_cq);
  	phba->sli4_hba.fcp_cq = NULL;
  
  	/* Release fast-path event queue */
  	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
  		lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
  	kfree(phba->sli4_hba.fp_eq);
  	phba->sli4_hba.fp_eq = NULL;
  
  	/* Release slow-path event queue */
  	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
  	phba->sli4_hba.sp_eq = NULL;
  
  	return;
  }
  
  /**
   * lpfc_sli4_queue_setup - Set up all the SLI4 queues
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
   * operation.
   *
   * Return codes
   *      0 - successful
   *      ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  int
  lpfc_sli4_queue_setup(struct lpfc_hba *phba)
  {
  	int rc = -ENOMEM;
  	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
  	int fcp_cq_index = 0;
  
  	/*
  	 * Set up Event Queues (EQs)
  	 */
  
  	/* Set up slow-path event queue */
  	if (!phba->sli4_hba.sp_eq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0520 Slow-path EQ not allocated\n");
  		goto out_error;
  	}
  	rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
  			    LPFC_SP_DEF_IMAX);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0521 Failed setup of slow-path EQ: "
  				"rc = 0x%x\n", rc);
  		goto out_error;
  	}
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"2583 Slow-path EQ setup: queue-id=%d\n",
  			phba->sli4_hba.sp_eq->queue_id);
  
  	/* Set up fast-path event queue */
  	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
  		if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0522 Fast-path EQ (%d) not "
  					"allocated\n", fcp_eqidx);
  			goto out_destroy_fp_eq;
  		}
  		rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
  				    phba->cfg_fcp_imax);
  		if (rc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0523 Failed setup of fast-path EQ "
  					"(%d), rc = 0x%x\n", fcp_eqidx, rc);
  			goto out_destroy_fp_eq;
  		}
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"2584 Fast-path EQ setup: "
  				"queue[%d]-id=%d\n", fcp_eqidx,
  				phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
  	}
  
  	/*
  	 * Set up Complete Queues (CQs)
  	 */
  
  	/* Set up slow-path MBOX Complete Queue as the first CQ */
  	if (!phba->sli4_hba.mbx_cq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0528 Mailbox CQ not allocated\n");
  		goto out_destroy_fp_eq;
  	}
  	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
  			    LPFC_MCQ, LPFC_MBOX);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0529 Failed setup of slow-path mailbox CQ: "
  				"rc = 0x%x\n", rc);
  		goto out_destroy_fp_eq;
  	}
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
  			phba->sli4_hba.mbx_cq->queue_id,
  			phba->sli4_hba.sp_eq->queue_id);
  
  	/* Set up slow-path ELS Complete Queue */
  	if (!phba->sli4_hba.els_cq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0530 ELS CQ not allocated\n");
  		goto out_destroy_mbx_cq;
  	}
  	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
  			    LPFC_WCQ, LPFC_ELS);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0531 Failed setup of slow-path ELS CQ: "
  				"rc = 0x%x\n", rc);
  		goto out_destroy_mbx_cq;
  	}
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
  			phba->sli4_hba.els_cq->queue_id,
  			phba->sli4_hba.sp_eq->queue_id);
  
  	/* Set up fast-path FCP Response Complete Queue */
  	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
  		if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0526 Fast-path FCP CQ (%d) not "
  					"allocated\n", fcp_cqidx);
  			goto out_destroy_fcp_cq;
  		}
  		rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
  				    phba->sli4_hba.fp_eq[fcp_cqidx],
  				    LPFC_WCQ, LPFC_FCP);
  		if (rc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0527 Failed setup of fast-path FCP "
  					"CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
  			goto out_destroy_fcp_cq;
  		}
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"2588 FCP CQ setup: cq[%d]-id=%d, "
  				"parent eq[%d]-id=%d\n",
  				fcp_cqidx,
  				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
  				fcp_cqidx,
  				phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
  	}
  
  	/*
  	 * Set up all the Work Queues (WQs)
  	 */
  
  	/* Set up Mailbox Command Queue */
  	if (!phba->sli4_hba.mbx_wq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0538 Slow-path MQ not allocated\n");
  		goto out_destroy_fcp_cq;
  	}
  	rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
  			    phba->sli4_hba.mbx_cq, LPFC_MBOX);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0539 Failed setup of slow-path MQ: "
  				"rc = 0x%x\n", rc);
  		goto out_destroy_fcp_cq;
  	}
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
  			phba->sli4_hba.mbx_wq->queue_id,
  			phba->sli4_hba.mbx_cq->queue_id);
  
  	/* Set up slow-path ELS Work Queue */
  	if (!phba->sli4_hba.els_wq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0536 Slow-path ELS WQ not allocated\n");
  		goto out_destroy_mbx_wq;
  	}
  	rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
  			    phba->sli4_hba.els_cq, LPFC_ELS);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0537 Failed setup of slow-path ELS WQ: "
  				"rc = 0x%x\n", rc);
  		goto out_destroy_mbx_wq;
  	}
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
  			phba->sli4_hba.els_wq->queue_id,
  			phba->sli4_hba.els_cq->queue_id);
  
  	/* Set up fast-path FCP Work Queue */
  	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
  		if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0534 Fast-path FCP WQ (%d) not "
  					"allocated\n", fcp_wqidx);
  			goto out_destroy_fcp_wq;
  		}
  		rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
  				    phba->sli4_hba.fcp_cq[fcp_cq_index],
  				    LPFC_FCP);
  		if (rc) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0535 Failed setup of fast-path FCP "
  					"WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
  			goto out_destroy_fcp_wq;
  		}
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"2591 FCP WQ setup: wq[%d]-id=%d, "
  				"parent cq[%d]-id=%d\n",
  				fcp_wqidx,
  				phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
  				fcp_cq_index,
  				phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
  		/* Round robin FCP Work Queue's Completion Queue assignment */
  		fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
  	}
  
  	/*
  	 * Create Receive Queue (RQ)
  	 */
  	if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0540 Receive Queue not allocated\n");
  		goto out_destroy_fcp_wq;
  	}
  	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
  			    phba->sli4_hba.els_cq, LPFC_USOL);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0541 Failed setup of Receive Queue: "
  				"rc = 0x%x\n", rc);
  		goto out_destroy_fcp_wq;
  	}
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
  			"parent cq-id=%d\n",
  			phba->sli4_hba.hdr_rq->queue_id,
  			phba->sli4_hba.dat_rq->queue_id,
  			phba->sli4_hba.els_cq->queue_id);
  	return 0;
  
  out_destroy_fcp_wq:
  	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
  		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
  	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
  out_destroy_mbx_wq:
  	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
  out_destroy_fcp_cq:
  	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
  		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
  	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
  out_destroy_mbx_cq:
  	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
  out_destroy_fp_eq:
  	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
  		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
  	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
  out_error:
  	return rc;
  }
  
  /**
   * lpfc_sli4_queue_unset - Unset all the SLI4 queues
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
   * operation.
   *
   * Return codes
   *      0 - successful
   *      ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  void
  lpfc_sli4_queue_unset(struct lpfc_hba *phba)
  {
  	int fcp_qidx;
  
  	/* Unset mailbox command work queue */
  	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
  	/* Unset ELS work queue */
  	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
  	/* Unset unsolicited receive queue */
  	lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
  	/* Unset FCP work queue */
  	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
  		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
  	/* Unset mailbox command complete queue */
  	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
  	/* Unset ELS complete queue */
  	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
  	/* Unset FCP response complete queue */
  	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
  		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
  	/* Unset fast-path event queue */
  	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
  		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
  	/* Unset slow-path event queue */
  	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
  }
  
  /**
   * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to allocate and set up a pool of completion queue
   * events. The body of the completion queue event is a completion queue entry
   * CQE. For now, this pool is used for the interrupt service routine to queue
   * the following HBA completion queue events for the worker thread to process:
   *   - Mailbox asynchronous events
   *   - Receive queue completion unsolicited events
   * Later, this can be used for all the slow-path events.
   *
   * Return codes
   *      0 - successful
   *      -ENOMEM - No availble memory
   **/
  static int
  lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
  {
  	struct lpfc_cq_event *cq_event;
  	int i;
  
  	for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
  		cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
  		if (!cq_event)
  			goto out_pool_create_fail;
  		list_add_tail(&cq_event->list,
  			      &phba->sli4_hba.sp_cqe_event_pool);
  	}
  	return 0;
  
  out_pool_create_fail:
  	lpfc_sli4_cq_event_pool_destroy(phba);
  	return -ENOMEM;
  }
  
  /**
   * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to free the pool of completion queue events at
   * driver unload time. Note that, it is the responsibility of the driver
   * cleanup routine to free all the outstanding completion-queue events
   * allocated from this pool back into the pool before invoking this routine
   * to destroy the pool.
   **/
  static void
  lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
  {
  	struct lpfc_cq_event *cq_event, *next_cq_event;
  
  	list_for_each_entry_safe(cq_event, next_cq_event,
  				 &phba->sli4_hba.sp_cqe_event_pool, list) {
  		list_del(&cq_event->list);
  		kfree(cq_event);
  	}
  }
  
  /**
   * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is the lock free version of the API invoked to allocate a
   * completion-queue event from the free pool.
   *
   * Return: Pointer to the newly allocated completion-queue event if successful
   *         NULL otherwise.
   **/
  struct lpfc_cq_event *
  __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
  {
  	struct lpfc_cq_event *cq_event = NULL;
  
  	list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
  			 struct lpfc_cq_event, list);
  	return cq_event;
  }
  
  /**
   * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is the lock version of the API invoked to allocate a
   * completion-queue event from the free pool.
   *
   * Return: Pointer to the newly allocated completion-queue event if successful
   *         NULL otherwise.
   **/
  struct lpfc_cq_event *
  lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
  {
  	struct lpfc_cq_event *cq_event;
  	unsigned long iflags;
  
  	spin_lock_irqsave(&phba->hbalock, iflags);
  	cq_event = __lpfc_sli4_cq_event_alloc(phba);
  	spin_unlock_irqrestore(&phba->hbalock, iflags);
  	return cq_event;
  }
  
  /**
   * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
   * @phba: pointer to lpfc hba data structure.
   * @cq_event: pointer to the completion queue event to be freed.
   *
   * This routine is the lock free version of the API invoked to release a
   * completion-queue event back into the free pool.
   **/
  void
  __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
  			     struct lpfc_cq_event *cq_event)
  {
  	list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
  }
  
  /**
   * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
   * @phba: pointer to lpfc hba data structure.
   * @cq_event: pointer to the completion queue event to be freed.
   *
   * This routine is the lock version of the API invoked to release a
   * completion-queue event back into the free pool.
   **/
  void
  lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
  			   struct lpfc_cq_event *cq_event)
  {
  	unsigned long iflags;
  	spin_lock_irqsave(&phba->hbalock, iflags);
  	__lpfc_sli4_cq_event_release(phba, cq_event);
  	spin_unlock_irqrestore(&phba->hbalock, iflags);
  }
  
  /**
   * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is to free all the pending completion-queue events to the
   * back into the free pool for device reset.
   **/
  static void
  lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
  {
  	LIST_HEAD(cqelist);
  	struct lpfc_cq_event *cqe;
  	unsigned long iflags;
  
  	/* Retrieve all the pending WCQEs from pending WCQE lists */
  	spin_lock_irqsave(&phba->hbalock, iflags);
  	/* Pending FCP XRI abort events */
  	list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
  			 &cqelist);
  	/* Pending ELS XRI abort events */
  	list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
  			 &cqelist);
  	/* Pending asynnc events */
  	list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
  			 &cqelist);
  	spin_unlock_irqrestore(&phba->hbalock, iflags);
  
  	while (!list_empty(&cqelist)) {
  		list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
  		lpfc_sli4_cq_event_release(phba, cqe);
  	}
  }
  
  /**
   * lpfc_pci_function_reset - Reset pci function.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to request a PCI function reset. It will destroys
   * all resources assigned to the PCI function which originates this request.
   *
   * Return codes
   *      0 - successful
   *      ENOMEM - No availble memory
   *      EIO - The mailbox failed to complete successfully.
   **/
  int
  lpfc_pci_function_reset(struct lpfc_hba *phba)
  {
  	LPFC_MBOXQ_t *mboxq;
  	uint32_t rc = 0;
  	uint32_t shdr_status, shdr_add_status;
  	union lpfc_sli4_cfg_shdr *shdr;
  
  	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!mboxq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0494 Unable to allocate memory for issuing "
  				"SLI_FUNCTION_RESET mailbox command\n");
  		return -ENOMEM;
  	}
  
  	/* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
  	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
  			 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
  			 LPFC_SLI4_MBX_EMBED);
  	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  	shdr = (union lpfc_sli4_cfg_shdr *)
  		&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
  	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
  	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
  	if (rc != MBX_TIMEOUT)
  		mempool_free(mboxq, phba->mbox_mem_pool);
  	if (shdr_status || shdr_add_status || rc) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0495 SLI_FUNCTION_RESET mailbox failed with "
  				"status x%x add_status x%x, mbx status x%x\n",
  				shdr_status, shdr_add_status, rc);
  		rc = -ENXIO;
  	}
  	return rc;
  }
  
  /**
   * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
   * @phba: pointer to lpfc hba data structure.
   * @cnt: number of nop mailbox commands to send.
   *
   * This routine is invoked to send a number @cnt of NOP mailbox command and
   * wait for each command to complete.
   *
   * Return: the number of NOP mailbox command completed.
   **/
  static int
  lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
  {
  	LPFC_MBOXQ_t *mboxq;
  	int length, cmdsent;
  	uint32_t mbox_tmo;
  	uint32_t rc = 0;
  	uint32_t shdr_status, shdr_add_status;
  	union lpfc_sli4_cfg_shdr *shdr;
  
  	if (cnt == 0) {
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"2518 Requested to send 0 NOP mailbox cmd\n");
  		return cnt;
  	}
  
  	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!mboxq) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2519 Unable to allocate memory for issuing "
  				"NOP mailbox command\n");
  		return 0;
  	}
  
  	/* Set up NOP SLI4_CONFIG mailbox-ioctl command */
  	length = (sizeof(struct lpfc_mbx_nop) -
  		  sizeof(struct lpfc_sli4_cfg_mhdr));
  	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
  			 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
  
  	mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
  	for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
  		if (!phba->sli4_hba.intr_enable)
  			rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  		else
  			rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
  		if (rc == MBX_TIMEOUT)
  			break;
  		/* Check return status */
  		shdr = (union lpfc_sli4_cfg_shdr *)
  			&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
  		shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
  		shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
  					 &shdr->response);
  		if (shdr_status || shdr_add_status || rc) {
  			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  					"2520 NOP mailbox command failed "
  					"status x%x add_status x%x mbx "
  					"status x%x\n", shdr_status,
  					shdr_add_status, rc);
  			break;
  		}
  	}
  
  	if (rc != MBX_TIMEOUT)
  		mempool_free(mboxq, phba->mbox_mem_pool);
  
  	return cmdsent;
  }
  
  /**
   * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
   * @phba: pointer to lpfc hba data structure.
   * @fcfi: fcf index.
   *
   * This routine is invoked to unregister a FCFI from device.
   **/
  void
  lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
  {
  	LPFC_MBOXQ_t *mbox;
  	uint32_t mbox_tmo;
  	int rc;
  	unsigned long flags;
  
  	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  
  	if (!mbox)
  		return;
  
  	lpfc_unreg_fcfi(mbox, fcfi);
  
  	if (!phba->sli4_hba.intr_enable)
  		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
  	else {
  		mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
  		rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
  	}
  	if (rc != MBX_TIMEOUT)
  		mempool_free(mbox, phba->mbox_mem_pool);
  	if (rc != MBX_SUCCESS)
  		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
  				"2517 Unregister FCFI command failed "
  				"status %d, mbxStatus x%x\n", rc,
  				bf_get(lpfc_mqe_status, &mbox->u.mqe));
  	else {
  		spin_lock_irqsave(&phba->hbalock, flags);
  		/* Mark the FCFI is no longer registered */
  		phba->fcf.fcf_flag &=
  			~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE);
  		spin_unlock_irqrestore(&phba->hbalock, flags);
  	}
  }
  
  /**
   * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to set up the PCI device memory space for device
   * with SLI-4 interface spec.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
  {
  	struct pci_dev *pdev;
  	unsigned long bar0map_len, bar1map_len, bar2map_len;
  	int error = -ENODEV;
  
  	/* Obtain PCI device reference */
  	if (!phba->pcidev)
  		return error;
  	else
  		pdev = phba->pcidev;
  
  	/* Set the device DMA mask size */
  	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
  	 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
  		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
  		 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
  			return error;
  		}
  	}
  
  	/* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
  	 * number of bytes required by each mapping. They are actually
  	 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
  	 */
  	if (pci_resource_start(pdev, 0)) {
  		phba->pci_bar0_map = pci_resource_start(pdev, 0);
  		bar0map_len = pci_resource_len(pdev, 0);
  	} else {
  		phba->pci_bar0_map = pci_resource_start(pdev, 1);
  		bar0map_len = pci_resource_len(pdev, 1);
  	}
  	phba->pci_bar1_map = pci_resource_start(pdev, 2);
  	bar1map_len = pci_resource_len(pdev, 2);
  
  	phba->pci_bar2_map = pci_resource_start(pdev, 4);
  	bar2map_len = pci_resource_len(pdev, 4);
  
  	/* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
  	phba->sli4_hba.conf_regs_memmap_p =
  				ioremap(phba->pci_bar0_map, bar0map_len);
  	if (!phba->sli4_hba.conf_regs_memmap_p) {
  		dev_printk(KERN_ERR, &pdev->dev,
  			   "ioremap failed for SLI4 PCI config registers.\n");
  		goto out;
  	}
  
  	/* Map SLI4 HBA Control Register base to a kernel virtual address. */
  	phba->sli4_hba.ctrl_regs_memmap_p =
  				ioremap(phba->pci_bar1_map, bar1map_len);
  	if (!phba->sli4_hba.ctrl_regs_memmap_p) {
  		dev_printk(KERN_ERR, &pdev->dev,
  			   "ioremap failed for SLI4 HBA control registers.\n");
  		goto out_iounmap_conf;
  	}
  
  	/* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
  	phba->sli4_hba.drbl_regs_memmap_p =
  				ioremap(phba->pci_bar2_map, bar2map_len);
  	if (!phba->sli4_hba.drbl_regs_memmap_p) {
  		dev_printk(KERN_ERR, &pdev->dev,
  			   "ioremap failed for SLI4 HBA doorbell registers.\n");
  		goto out_iounmap_ctrl;
  	}
  
  	/* Set up BAR0 PCI config space register memory map */
  	lpfc_sli4_bar0_register_memmap(phba);
  
  	/* Set up BAR1 register memory map */
  	lpfc_sli4_bar1_register_memmap(phba);
  
  	/* Set up BAR2 register memory map */
  	error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
  	if (error)
  		goto out_iounmap_all;
  
  	return 0;
  
  out_iounmap_all:
  	iounmap(phba->sli4_hba.drbl_regs_memmap_p);
  out_iounmap_ctrl:
  	iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
  out_iounmap_conf:
  	iounmap(phba->sli4_hba.conf_regs_memmap_p);
  out:
  	return error;
  }
  
  /**
   * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the PCI device memory space for device
   * with SLI-4 interface spec.
   **/
  static void
  lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
  {
  	struct pci_dev *pdev;
  
  	/* Obtain PCI device reference */
  	if (!phba->pcidev)
  		return;
  	else
  		pdev = phba->pcidev;
  
  	/* Free coherent DMA memory allocated */
  
  	/* Unmap I/O memory space */
  	iounmap(phba->sli4_hba.drbl_regs_memmap_p);
  	iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
  	iounmap(phba->sli4_hba.conf_regs_memmap_p);
  
  	return;
  }
  
  /**
   * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable the MSI-X interrupt vectors to device
   * with SLI-3 interface specs. The kernel function pci_enable_msix() is
   * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
   * invoked, enables either all or nothing, depending on the current
   * availability of PCI vector resources. The device driver is responsible
   * for calling the individual request_irq() to register each MSI-X vector
   * with a interrupt handler, which is done in this function. Note that
   * later when device is unloading, the driver should always call free_irq()
   * on all MSI-X vectors it has done request_irq() on before calling
   * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
   * will be left with MSI-X enabled and leaks its vectors.
   *
   * Return codes
   *   0 - successful
   *   other values - error
   **/
  static int
  lpfc_sli_enable_msix(struct lpfc_hba *phba)
  {
  	int rc, i;
  	LPFC_MBOXQ_t *pmb;
  
  	/* Set up MSI-X multi-message vectors */
  	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
  		phba->msix_entries[i].entry = i;
  
  	/* Configure MSI-X capability structure */
  	rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
  				ARRAY_SIZE(phba->msix_entries));
  	if (rc) {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0420 PCI enable MSI-X failed (%d)\n", rc);
  		goto msi_fail_out;
  	}
  	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0477 MSI-X entry[%d]: vector=x%x "
  				"message=%d\n", i,
  				phba->msix_entries[i].vector,
  				phba->msix_entries[i].entry);
  	/*
  	 * Assign MSI-X vectors to interrupt handlers
  	 */
  
  	/* vector-0 is associated to slow-path handler */
  	rc = request_irq(phba->msix_entries[0].vector,
  			 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
  			 LPFC_SP_DRIVER_HANDLER_NAME, phba);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"0421 MSI-X slow-path request_irq failed "
  				"(%d)\n", rc);
  		goto msi_fail_out;
  	}
  
  	/* vector-1 is associated to fast-path handler */
  	rc = request_irq(phba->msix_entries[1].vector,
  			 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
  			 LPFC_FP_DRIVER_HANDLER_NAME, phba);
  
  	if (rc) {
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"0429 MSI-X fast-path request_irq failed "
  				"(%d)\n", rc);
  		goto irq_fail_out;
  	}
  
  	/*
  	 * Configure HBA MSI-X attention conditions to messages
  	 */
  	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  
  	if (!pmb) {
  		rc = -ENOMEM;
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0474 Unable to allocate memory for issuing "
  				"MBOX_CONFIG_MSI command\n");
  		goto mem_fail_out;
  	}
  	rc = lpfc_config_msi(phba, pmb);
  	if (rc)
  		goto mbx_fail_out;
  	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
  	if (rc != MBX_SUCCESS) {
  		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
  				"0351 Config MSI mailbox command failed, "
  				"mbxCmd x%x, mbxStatus x%x\n",
  				pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
  		goto mbx_fail_out;
  	}
  
  	/* Free memory allocated for mailbox command */
  	mempool_free(pmb, phba->mbox_mem_pool);
  	return rc;
  
  mbx_fail_out:
  	/* Free memory allocated for mailbox command */
  	mempool_free(pmb, phba->mbox_mem_pool);
  
  mem_fail_out:
  	/* free the irq already requested */
  	free_irq(phba->msix_entries[1].vector, phba);
  
  irq_fail_out:
  	/* free the irq already requested */
  	free_irq(phba->msix_entries[0].vector, phba);
  
  msi_fail_out:
  	/* Unconfigure MSI-X capability structure */
  	pci_disable_msix(phba->pcidev);
  	return rc;
  }
  
  /**
   * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to release the MSI-X vectors and then disable the
   * MSI-X interrupt mode to device with SLI-3 interface spec.
   **/
  static void
  lpfc_sli_disable_msix(struct lpfc_hba *phba)
  {
  	int i;
  
  	/* Free up MSI-X multi-message vectors */
  	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
  		free_irq(phba->msix_entries[i].vector, phba);
  	/* Disable MSI-X */
  	pci_disable_msix(phba->pcidev);
  
  	return;
  }
  
  /**
   * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable the MSI interrupt mode to device with
   * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
   * enable the MSI vector. The device driver is responsible for calling the
   * request_irq() to register MSI vector with a interrupt the handler, which
   * is done in this function.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   */
  static int
  lpfc_sli_enable_msi(struct lpfc_hba *phba)
  {
  	int rc;
  
  	rc = pci_enable_msi(phba->pcidev);
  	if (!rc)
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0462 PCI enable MSI mode success.\n");
  	else {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0471 PCI enable MSI mode failed (%d)\n", rc);
  		return rc;
  	}
  
  	rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
  			 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
  	if (rc) {
  		pci_disable_msi(phba->pcidev);
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"0478 MSI request_irq failed (%d)\n", rc);
  	}
  	return rc;
  }
  
  /**
   * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to disable the MSI interrupt mode to device with
   * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
   * done request_irq() on before calling pci_disable_msi(). Failure to do so
   * results in a BUG_ON() and a device will be left with MSI enabled and leaks
   * its vector.
   */
  static void
  lpfc_sli_disable_msi(struct lpfc_hba *phba)
  {
  	free_irq(phba->pcidev->irq, phba);
  	pci_disable_msi(phba->pcidev);
  	return;
  }
  
  /**
   * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable device interrupt and associate driver's
   * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
   * spec. Depends on the interrupt mode configured to the driver, the driver
   * will try to fallback from the configured interrupt mode to an interrupt
   * mode which is supported by the platform, kernel, and device in the order
   * of:
   * MSI-X -> MSI -> IRQ.
   *
   * Return codes
   *   0 - successful
   *   other values - error
   **/
  static uint32_t
  lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
  {
  	uint32_t intr_mode = LPFC_INTR_ERROR;
  	int retval;
  
  	if (cfg_mode == 2) {
  		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
  		retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
  		if (!retval) {
  			/* Now, try to enable MSI-X interrupt mode */
  			retval = lpfc_sli_enable_msix(phba);
  			if (!retval) {
  				/* Indicate initialization to MSI-X mode */
  				phba->intr_type = MSIX;
  				intr_mode = 2;
  			}
  		}
  	}
  
  	/* Fallback to MSI if MSI-X initialization failed */
  	if (cfg_mode >= 1 && phba->intr_type == NONE) {
  		retval = lpfc_sli_enable_msi(phba);
  		if (!retval) {
  			/* Indicate initialization to MSI mode */
  			phba->intr_type = MSI;
  			intr_mode = 1;
  		}
  	}
  
  	/* Fallback to INTx if both MSI-X/MSI initalization failed */
  	if (phba->intr_type == NONE) {
  		retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
  				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
  		if (!retval) {
  			/* Indicate initialization to INTx mode */
  			phba->intr_type = INTx;
  			intr_mode = 0;
  		}
  	}
  	return intr_mode;
  }
  
  /**
   * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to disable device interrupt and disassociate the
   * driver's interrupt handler(s) from interrupt vector(s) to device with
   * SLI-3 interface spec. Depending on the interrupt mode, the driver will
   * release the interrupt vector(s) for the message signaled interrupt.
   **/
  static void
  lpfc_sli_disable_intr(struct lpfc_hba *phba)
  {
  	/* Disable the currently initialized interrupt mode */
  	if (phba->intr_type == MSIX)
  		lpfc_sli_disable_msix(phba);
  	else if (phba->intr_type == MSI)
  		lpfc_sli_disable_msi(phba);
  	else if (phba->intr_type == INTx)
  		free_irq(phba->pcidev->irq, phba);
  
  	/* Reset interrupt management states */
  	phba->intr_type = NONE;
  	phba->sli.slistat.sli_intr = 0;
  
  	return;
  }
  
  /**
   * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable the MSI-X interrupt vectors to device
   * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
   * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
   * enables either all or nothing, depending on the current availability of
   * PCI vector resources. The device driver is responsible for calling the
   * individual request_irq() to register each MSI-X vector with a interrupt
   * handler, which is done in this function. Note that later when device is
   * unloading, the driver should always call free_irq() on all MSI-X vectors
   * it has done request_irq() on before calling pci_disable_msix(). Failure
   * to do so results in a BUG_ON() and a device will be left with MSI-X
   * enabled and leaks its vectors.
   *
   * Return codes
   * 0 - successful
   * other values - error
   **/
  static int
  lpfc_sli4_enable_msix(struct lpfc_hba *phba)
  {
  	int rc, index;
  
  	/* Set up MSI-X multi-message vectors */
  	for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
  		phba->sli4_hba.msix_entries[index].entry = index;
  
  	/* Configure MSI-X capability structure */
  	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
  			     phba->sli4_hba.cfg_eqn);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0484 PCI enable MSI-X failed (%d)\n", rc);
  		goto msi_fail_out;
  	}
  	/* Log MSI-X vector assignment */
  	for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0489 MSI-X entry[%d]: vector=x%x "
  				"message=%d\n", index,
  				phba->sli4_hba.msix_entries[index].vector,
  				phba->sli4_hba.msix_entries[index].entry);
  	/*
  	 * Assign MSI-X vectors to interrupt handlers
  	 */
  
  	/* The first vector must associated to slow-path handler for MQ */
  	rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
  			 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
  			 LPFC_SP_DRIVER_HANDLER_NAME, phba);
  	if (rc) {
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"0485 MSI-X slow-path request_irq failed "
  				"(%d)\n", rc);
  		goto msi_fail_out;
  	}
  
  	/* The rest of the vector(s) are associated to fast-path handler(s) */
  	for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
  		phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
  		phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
  		rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
  				 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
  				 LPFC_FP_DRIVER_HANDLER_NAME,
  				 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
  		if (rc) {
  			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  					"0486 MSI-X fast-path (%d) "
  					"request_irq failed (%d)\n", index, rc);
  			goto cfg_fail_out;
  		}
  	}
  
  	return rc;
  
  cfg_fail_out:
  	/* free the irq already requested */
  	for (--index; index >= 1; index--)
  		free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
  			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
  
  	/* free the irq already requested */
  	free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
  
  msi_fail_out:
  	/* Unconfigure MSI-X capability structure */
  	pci_disable_msix(phba->pcidev);
  	return rc;
  }
  
  /**
   * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to release the MSI-X vectors and then disable the
   * MSI-X interrupt mode to device with SLI-4 interface spec.
   **/
  static void
  lpfc_sli4_disable_msix(struct lpfc_hba *phba)
  {
  	int index;
  
  	/* Free up MSI-X multi-message vectors */
  	free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
  
  	for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
  		free_irq(phba->sli4_hba.msix_entries[index].vector,
  			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
  	/* Disable MSI-X */
  	pci_disable_msix(phba->pcidev);
  
  	return;
  }
  
  /**
   * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable the MSI interrupt mode to device with
   * SLI-4 interface spec. The kernel function pci_enable_msi() is called
   * to enable the MSI vector. The device driver is responsible for calling
   * the request_irq() to register MSI vector with a interrupt the handler,
   * which is done in this function.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static int
  lpfc_sli4_enable_msi(struct lpfc_hba *phba)
  {
  	int rc, index;
  
  	rc = pci_enable_msi(phba->pcidev);
  	if (!rc)
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0487 PCI enable MSI mode success.\n");
  	else {
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0488 PCI enable MSI mode failed (%d)\n", rc);
  		return rc;
  	}
  
  	rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
  			 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
  	if (rc) {
  		pci_disable_msi(phba->pcidev);
  		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
  				"0490 MSI request_irq failed (%d)\n", rc);
  	}
  
  	for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
  		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
  		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
  	}
  
  	return rc;
  }
  
  /**
   * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to disable the MSI interrupt mode to device with
   * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
   * done request_irq() on before calling pci_disable_msi(). Failure to do so
   * results in a BUG_ON() and a device will be left with MSI enabled and leaks
   * its vector.
   **/
  static void
  lpfc_sli4_disable_msi(struct lpfc_hba *phba)
  {
  	free_irq(phba->pcidev->irq, phba);
  	pci_disable_msi(phba->pcidev);
  	return;
  }
  
  /**
   * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to enable device interrupt and associate driver's
   * interrupt handler(s) to interrupt vector(s) to device with SLI-4
   * interface spec. Depends on the interrupt mode configured to the driver,
   * the driver will try to fallback from the configured interrupt mode to an
   * interrupt mode which is supported by the platform, kernel, and device in
   * the order of:
   * MSI-X -> MSI -> IRQ.
   *
   * Return codes
   * 	0 - successful
   * 	other values - error
   **/
  static uint32_t
  lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
  {
  	uint32_t intr_mode = LPFC_INTR_ERROR;
  	int retval, index;
  
  	if (cfg_mode == 2) {
  		/* Preparation before conf_msi mbox cmd */
  		retval = 0;
  		if (!retval) {
  			/* Now, try to enable MSI-X interrupt mode */
  			retval = lpfc_sli4_enable_msix(phba);
  			if (!retval) {
  				/* Indicate initialization to MSI-X mode */
  				phba->intr_type = MSIX;
  				intr_mode = 2;
  			}
  		}
  	}
  
  	/* Fallback to MSI if MSI-X initialization failed */
  	if (cfg_mode >= 1 && phba->intr_type == NONE) {
  		retval = lpfc_sli4_enable_msi(phba);
  		if (!retval) {
  			/* Indicate initialization to MSI mode */
  			phba->intr_type = MSI;
  			intr_mode = 1;
  		}
  	}
  
  	/* Fallback to INTx if both MSI-X/MSI initalization failed */
  	if (phba->intr_type == NONE) {
  		retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
  				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
  		if (!retval) {
  			/* Indicate initialization to INTx mode */
  			phba->intr_type = INTx;
  			intr_mode = 0;
  			for (index = 0; index < phba->cfg_fcp_eq_count;
  			     index++) {
  				phba->sli4_hba.fcp_eq_hdl[index].idx = index;
  				phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
  			}
  		}
  	}
  	return intr_mode;
  }
  
  /**
   * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to disable device interrupt and disassociate
   * the driver's interrupt handler(s) from interrupt vector(s) to device
   * with SLI-4 interface spec. Depending on the interrupt mode, the driver
   * will release the interrupt vector(s) for the message signaled interrupt.
   **/
  static void
  lpfc_sli4_disable_intr(struct lpfc_hba *phba)
  {
  	/* Disable the currently initialized interrupt mode */
  	if (phba->intr_type == MSIX)
  		lpfc_sli4_disable_msix(phba);
  	else if (phba->intr_type == MSI)
  		lpfc_sli4_disable_msi(phba);
  	else if (phba->intr_type == INTx)
  		free_irq(phba->pcidev->irq, phba);
  
  	/* Reset interrupt management states */
  	phba->intr_type = NONE;
  	phba->sli.slistat.sli_intr = 0;
  
  	return;
  }
  
  /**
   * lpfc_unset_hba - Unset SLI3 hba device initialization
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the HBA device initialization steps to
   * a device with SLI-3 interface spec.
   **/
  static void
  lpfc_unset_hba(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
  
  	spin_lock_irq(shost->host_lock);
  	vport->load_flag |= FC_UNLOADING;
  	spin_unlock_irq(shost->host_lock);
  
  	lpfc_stop_hba_timers(phba);
  
  	phba->pport->work_port_events = 0;
  
  	lpfc_sli_hba_down(phba);
  
  	lpfc_sli_brdrestart(phba);
  
  	lpfc_sli_disable_intr(phba);
  
  	return;
  }
  
  /**
   * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is invoked to unset the HBA device initialization steps to
   * a device with SLI-4 interface spec.
   **/
  static void
  lpfc_sli4_unset_hba(struct lpfc_hba *phba)
  {
  	struct lpfc_vport *vport = phba->pport;
  	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
  
  	spin_lock_irq(shost->host_lock);
  	vport->load_flag |= FC_UNLOADING;
  	spin_unlock_irq(shost->host_lock);
  
  	phba->pport->work_port_events = 0;
  
  	lpfc_sli4_hba_down(phba);
  
  	lpfc_sli4_disable_intr(phba);
  
  	return;
  }
  
  /**
   * lpfc_sli4_hba_unset - Unset the fcoe hba
   * @phba: Pointer to HBA context object.
   *
   * This function is called in the SLI4 code path to reset the HBA's FCoE
   * function. The caller is not required to hold any lock. This routine
   * issues PCI function reset mailbox command to reset the FCoE function.
   * At the end of the function, it calls lpfc_hba_down_post function to
   * free any pending commands.
   **/
  static void
  lpfc_sli4_hba_unset(struct lpfc_hba *phba)
  {
  	int wait_cnt = 0;
  	LPFC_MBOXQ_t *mboxq;
  
  	lpfc_stop_hba_timers(phba);
  	phba->sli4_hba.intr_enable = 0;
  
  	/*
  	 * Gracefully wait out the potential current outstanding asynchronous
  	 * mailbox command.
  	 */
  
  	/* First, block any pending async mailbox command from posted */
  	spin_lock_irq(&phba->hbalock);
  	phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
  	spin_unlock_irq(&phba->hbalock);
  	/* Now, trying to wait it out if we can */
  	while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
  		msleep(10);
  		if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
  			break;
  	}
  	/* Forcefully release the outstanding mailbox command if timed out */
  	if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
  		spin_lock_irq(&phba->hbalock);
  		mboxq = phba->sli.mbox_active;
  		mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
  		__lpfc_mbox_cmpl_put(phba, mboxq);
  		phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
  		phba->sli.mbox_active = NULL;
  		spin_unlock_irq(&phba->hbalock);
  	}
  
  	/* Tear down the queues in the HBA */
  	lpfc_sli4_queue_unset(phba);
  
  	/* Disable PCI subsystem interrupt */
  	lpfc_sli4_disable_intr(phba);
  
  	/* Stop kthread signal shall trigger work_done one more time */
  	kthread_stop(phba->worker_thread);
  
  	/* Stop the SLI4 device port */
  	phba->pport->work_port_events = 0;
  }
  
   /**
   * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
   * @phba: Pointer to HBA context object.
   * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
   *
   * This function is called in the SLI4 code path to read the port's
   * sli4 capabilities.
   *
   * This function may be be called from any context that can block-wait
   * for the completion.  The expectation is that this routine is called
   * typically from probe_one or from the online routine.
   **/
  int
  lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
  {
  	int rc;
  	struct lpfc_mqe *mqe;
  	struct lpfc_pc_sli4_params *sli4_params;
  	uint32_t mbox_tmo;
  
  	rc = 0;
  	mqe = &mboxq->u.mqe;
  
  	/* Read the port's SLI4 Parameters port capabilities */
  	lpfc_sli4_params(mboxq);
  	if (!phba->sli4_hba.intr_enable)
  		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
  	else {
  		mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
  		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
  	}
  
  	if (unlikely(rc))
  		return 1;
  
  	sli4_params = &phba->sli4_hba.pc_sli4_params;
  	sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
  	sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
  	sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
  	sli4_params->featurelevel_1 = bf_get(featurelevel_1,
  					     &mqe->un.sli4_params);
  	sli4_params->featurelevel_2 = bf_get(featurelevel_2,
  					     &mqe->un.sli4_params);
  	sli4_params->proto_types = mqe->un.sli4_params.word3;
  	sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
  	sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
  	sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
  	sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
  	sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
  	sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
  	sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
  	sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
  	sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
  	sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
  	sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
  	sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
  	sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
  	sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
  	sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
  	sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
  	sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
  	sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
  	sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
  	sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
  	return rc;
  }
  
  /**
   * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
   * @pdev: pointer to PCI device
   * @pid: pointer to PCI device identifier
   *
   * This routine is to be called to attach a device with SLI-3 interface spec
   * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
   * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
   * information of the device and driver to see if the driver state that it can
   * support this kind of device. If the match is successful, the driver core
   * invokes this routine. If this routine determines it can claim the HBA, it
   * does all the initialization that it needs to do to handle the HBA properly.
   *
   * Return code
   * 	0 - driver can claim the device
   * 	negative value - driver can not claim the device
   **/
  static int __devinit
  lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
  {
  	struct lpfc_hba   *phba;
  	struct lpfc_vport *vport = NULL;
  	struct Scsi_Host  *shost = NULL;
  	int error;
  	uint32_t cfg_mode, intr_mode;
  
  	/* Allocate memory for HBA structure */
  	phba = lpfc_hba_alloc(pdev);
  	if (!phba)
  		return -ENOMEM;
  
  	/* Perform generic PCI device enabling operation */
  	error = lpfc_enable_pci_dev(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1401 Failed to enable pci device.\n");
  		goto out_free_phba;
  	}
  
  	/* Set up SLI API function jump table for PCI-device group-0 HBAs */
  	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
  	if (error)
  		goto out_disable_pci_dev;
  
  	/* Set up SLI-3 specific device PCI memory space */
  	error = lpfc_sli_pci_mem_setup(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1402 Failed to set up pci memory space.\n");
  		goto out_disable_pci_dev;
  	}
  
  	/* Set up phase-1 common device driver resources */
  	error = lpfc_setup_driver_resource_phase1(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1403 Failed to set up driver resource.\n");
  		goto out_unset_pci_mem_s3;
  	}
  
  	/* Set up SLI-3 specific device driver resources */
  	error = lpfc_sli_driver_resource_setup(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1404 Failed to set up driver resource.\n");
  		goto out_unset_pci_mem_s3;
  	}
  
  	/* Initialize and populate the iocb list per host */
  	error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1405 Failed to initialize iocb list.\n");
  		goto out_unset_driver_resource_s3;
  	}
  
  	/* Set up common device driver resources */
  	error = lpfc_setup_driver_resource_phase2(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1406 Failed to set up driver resource.\n");
  		goto out_free_iocb_list;
  	}
  
  	/* Create SCSI host to the physical port */
  	error = lpfc_create_shost(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1407 Failed to create scsi host.\n");
  		goto out_unset_driver_resource;
  	}
  
  	/* Configure sysfs attributes */
  	vport = phba->pport;
  	error = lpfc_alloc_sysfs_attr(vport);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1476 Failed to allocate sysfs attr\n");
  		goto out_destroy_shost;
  	}
  
  	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
  	/* Now, trying to enable interrupt and bring up the device */
  	cfg_mode = phba->cfg_use_msi;
  	while (true) {
  		/* Put device to a known state before enabling interrupt */
  		lpfc_stop_port(phba);
  		/* Configure and enable interrupt */
  		intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
  		if (intr_mode == LPFC_INTR_ERROR) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0431 Failed to enable interrupt.\n");
  			error = -ENODEV;
  			goto out_free_sysfs_attr;
  		}
  		/* SLI-3 HBA setup */
  		if (lpfc_sli_hba_setup(phba)) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"1477 Failed to set up hba\n");
  			error = -ENODEV;
  			goto out_remove_device;
  		}
  
  		/* Wait 50ms for the interrupts of previous mailbox commands */
  		msleep(50);
  		/* Check active interrupts on message signaled interrupts */
  		if (intr_mode == 0 ||
  		    phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
  			/* Log the current active interrupt mode */
  			phba->intr_mode = intr_mode;
  			lpfc_log_intr_mode(phba, intr_mode);
  			break;
  		} else {
  			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  					"0447 Configure interrupt mode (%d) "
  					"failed active interrupt test.\n",
  					intr_mode);
  			/* Disable the current interrupt mode */
  			lpfc_sli_disable_intr(phba);
  			/* Try next level of interrupt mode */
  			cfg_mode = --intr_mode;
  		}
  	}
  
  	/* Perform post initialization setup */
  	lpfc_post_init_setup(phba);
  
  	/* Check if there are static vports to be created. */
  	lpfc_create_static_vport(phba);
  
  	return 0;
  
  out_remove_device:
  	lpfc_unset_hba(phba);
  out_free_sysfs_attr:
  	lpfc_free_sysfs_attr(vport);
  out_destroy_shost:
  	lpfc_destroy_shost(phba);
  out_unset_driver_resource:
  	lpfc_unset_driver_resource_phase2(phba);
  out_free_iocb_list:
  	lpfc_free_iocb_list(phba);
  out_unset_driver_resource_s3:
  	lpfc_sli_driver_resource_unset(phba);
  out_unset_pci_mem_s3:
  	lpfc_sli_pci_mem_unset(phba);
  out_disable_pci_dev:
  	lpfc_disable_pci_dev(phba);
  	if (shost)
  		scsi_host_put(shost);
  out_free_phba:
  	lpfc_hba_free(phba);
  	return error;
  }
  
  /**
   * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
   * @pdev: pointer to PCI device
   *
   * This routine is to be called to disattach a device with SLI-3 interface
   * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
   * removed from PCI bus, it performs all the necessary cleanup for the HBA
   * device to be removed from the PCI subsystem properly.
   **/
  static void __devexit
  lpfc_pci_remove_one_s3(struct pci_dev *pdev)
  {
  	struct Scsi_Host  *shost = pci_get_drvdata(pdev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_vport **vports;
  	struct lpfc_hba   *phba = vport->phba;
  	int i;
  	int bars = pci_select_bars(pdev, IORESOURCE_MEM);
  
  	spin_lock_irq(&phba->hbalock);
  	vport->load_flag |= FC_UNLOADING;
  	spin_unlock_irq(&phba->hbalock);
  
  	lpfc_free_sysfs_attr(vport);
  
  	/* Release all the vports against this physical port */
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL)
  		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
  			fc_vport_terminate(vports[i]->fc_vport);
  	lpfc_destroy_vport_work_array(phba, vports);
  
  	/* Remove FC host and then SCSI host with the physical port */
  	fc_remove_host(shost);
  	scsi_remove_host(shost);
  	lpfc_cleanup(vport);
  
  	/*
  	 * Bring down the SLI Layer. This step disable all interrupts,
  	 * clears the rings, discards all mailbox commands, and resets
  	 * the HBA.
  	 */
  
  	/* HBA interrupt will be diabled after this call */
  	lpfc_sli_hba_down(phba);
  	/* Stop kthread signal shall trigger work_done one more time */
  	kthread_stop(phba->worker_thread);
  	/* Final cleanup of txcmplq and reset the HBA */
  	lpfc_sli_brdrestart(phba);
  
  	lpfc_stop_hba_timers(phba);
  	spin_lock_irq(&phba->hbalock);
  	list_del_init(&vport->listentry);
  	spin_unlock_irq(&phba->hbalock);
  
  	lpfc_debugfs_terminate(vport);
  
  	/* Disable interrupt */
  	lpfc_sli_disable_intr(phba);
  
  	pci_set_drvdata(pdev, NULL);
  	scsi_host_put(shost);
  
  	/*
  	 * Call scsi_free before mem_free since scsi bufs are released to their
  	 * corresponding pools here.
  	 */
  	lpfc_scsi_free(phba);
  	lpfc_mem_free_all(phba);
  
  	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
  			  phba->hbqslimp.virt, phba->hbqslimp.phys);
  
  	/* Free resources associated with SLI2 interface */
  	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
  			  phba->slim2p.virt, phba->slim2p.phys);
  
  	/* unmap adapter SLIM and Control Registers */
  	iounmap(phba->ctrl_regs_memmap_p);
  	iounmap(phba->slim_memmap_p);
  
  	lpfc_hba_free(phba);
  
  	pci_release_selected_regions(pdev, bars);
  	pci_disable_device(pdev);
  }
  
  /**
   * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
   * @pdev: pointer to PCI device
   * @msg: power management message
   *
   * This routine is to be called from the kernel's PCI subsystem to support
   * system Power Management (PM) to device with SLI-3 interface spec. When
   * PM invokes this method, it quiesces the device by stopping the driver's
   * worker thread for the device, turning off device's interrupt and DMA,
   * and bring the device offline. Note that as the driver implements the
   * minimum PM requirements to a power-aware driver's PM support for the
   * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
   * to the suspend() method call will be treated as SUSPEND and the driver will
   * fully reinitialize its device during resume() method call, the driver will
   * set device to PCI_D3hot state in PCI config space instead of setting it
   * according to the @msg provided by the PM.
   *
   * Return code
   * 	0 - driver suspended the device
   * 	Error otherwise
   **/
  static int
  lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"0473 PCI device Power Management suspend.\n");
  
  	/* Bring down the device */
  	lpfc_offline_prep(phba);
  	lpfc_offline(phba);
  	kthread_stop(phba->worker_thread);
  
  	/* Disable interrupt from device */
  	lpfc_sli_disable_intr(phba);
  
  	/* Save device state to PCI config space */
  	pci_save_state(pdev);
  	pci_set_power_state(pdev, PCI_D3hot);
  
  	return 0;
  }
  
  /**
   * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
   * @pdev: pointer to PCI device
   *
   * This routine is to be called from the kernel's PCI subsystem to support
   * system Power Management (PM) to device with SLI-3 interface spec. When PM
   * invokes this method, it restores the device's PCI config space state and
   * fully reinitializes the device and brings it online. Note that as the
   * driver implements the minimum PM requirements to a power-aware driver's
   * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
   * FREEZE) to the suspend() method call will be treated as SUSPEND and the
   * driver will fully reinitialize its device during resume() method call,
   * the device will be set to PCI_D0 directly in PCI config space before
   * restoring the state.
   *
   * Return code
   * 	0 - driver suspended the device
   * 	Error otherwise
   **/
  static int
  lpfc_pci_resume_one_s3(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	uint32_t intr_mode;
  	int error;
  
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"0452 PCI device Power Management resume.\n");
  
  	/* Restore device state from PCI config space */
  	pci_set_power_state(pdev, PCI_D0);
  	pci_restore_state(pdev);
  
  	/*
  	 * As the new kernel behavior of pci_restore_state() API call clears
  	 * device saved_state flag, need to save the restored state again.
  	 */
  	pci_save_state(pdev);
  
  	if (pdev->is_busmaster)
  		pci_set_master(pdev);
  
  	/* Startup the kernel thread for this host adapter. */
  	phba->worker_thread = kthread_run(lpfc_do_work, phba,
  					"lpfc_worker_%d", phba->brd_no);
  	if (IS_ERR(phba->worker_thread)) {
  		error = PTR_ERR(phba->worker_thread);
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0434 PM resume failed to start worker "
  				"thread: error=x%x.\n", error);
  		return error;
  	}
  
  	/* Configure and enable interrupt */
  	intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
  	if (intr_mode == LPFC_INTR_ERROR) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0430 PM resume Failed to enable interrupt\n");
  		return -EIO;
  	} else
  		phba->intr_mode = intr_mode;
  
  	/* Restart HBA and bring it online */
  	lpfc_sli_brdrestart(phba);
  	lpfc_online(phba);
  
  	/* Log the current active interrupt mode */
  	lpfc_log_intr_mode(phba, phba->intr_mode);
  
  	return 0;
  }
  
  /**
   * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is called to prepare the SLI3 device for PCI slot recover. It
   * aborts all the outstanding SCSI I/Os to the pci device.
   **/
  static void
  lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
  {
  	struct lpfc_sli *psli = &phba->sli;
  	struct lpfc_sli_ring  *pring;
  
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"2723 PCI channel I/O abort preparing for recovery\n");
  
  	/*
  	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
  	 * and let the SCSI mid-layer to retry them to recover.
  	 */
  	pring = &psli->ring[psli->fcp_ring];
  	lpfc_sli_abort_iocb_ring(phba, pring);
  }
  
  /**
   * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is called to prepare the SLI3 device for PCI slot reset. It
   * disables the device interrupt and pci device, and aborts the internal FCP
   * pending I/Os.
   **/
  static void
  lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
  {
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"2710 PCI channel disable preparing for reset\n");
  
  	/* Block all SCSI devices' I/Os on the host */
  	lpfc_scsi_dev_block(phba);
  
  	/* stop all timers */
  	lpfc_stop_hba_timers(phba);
  
  	/* Disable interrupt and pci device */
  	lpfc_sli_disable_intr(phba);
  	pci_disable_device(phba->pcidev);
  	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
  	lpfc_sli_flush_fcp_rings(phba);
  }
  
  /**
   * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
   * @phba: pointer to lpfc hba data structure.
   *
   * This routine is called to prepare the SLI3 device for PCI slot permanently
   * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
   * pending I/Os.
   **/
  static void
  lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
  {
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"2711 PCI channel permanent disable for failure\n");
  	/* Block all SCSI devices' I/Os on the host */
  	lpfc_scsi_dev_block(phba);
  
  	/* stop all timers */
  	lpfc_stop_hba_timers(phba);
  
  	/* Clean up all driver's outstanding SCSI I/Os */
  	lpfc_sli_flush_fcp_rings(phba);
  }
  
  /**
   * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
   * @pdev: pointer to PCI device.
   * @state: the current PCI connection state.
   *
   * This routine is called from the PCI subsystem for I/O error handling to
   * device with SLI-3 interface spec. This function is called by the PCI
   * subsystem after a PCI bus error affecting this device has been detected.
   * When this function is invoked, it will need to stop all the I/Os and
   * interrupt(s) to the device. Once that is done, it will return
   * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
   * as desired.
   *
   * Return codes
   * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
   * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
   * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
   **/
  static pci_ers_result_t
  lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  
  	switch (state) {
  	case pci_channel_io_normal:
  		/* Non-fatal error, prepare for recovery */
  		lpfc_sli_prep_dev_for_recover(phba);
  		return PCI_ERS_RESULT_CAN_RECOVER;
  	case pci_channel_io_frozen:
  		/* Fatal error, prepare for slot reset */
  		lpfc_sli_prep_dev_for_reset(phba);
  		return PCI_ERS_RESULT_NEED_RESET;
  	case pci_channel_io_perm_failure:
  		/* Permanent failure, prepare for device down */
  		lpfc_prep_dev_for_perm_failure(phba);
  		return PCI_ERS_RESULT_DISCONNECT;
  	default:
  		/* Unknown state, prepare and request slot reset */
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0472 Unknown PCI error state: x%x\n", state);
  		lpfc_sli_prep_dev_for_reset(phba);
  		return PCI_ERS_RESULT_NEED_RESET;
  	}
  }
  
  /**
   * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
   * @pdev: pointer to PCI device.
   *
   * This routine is called from the PCI subsystem for error handling to
   * device with SLI-3 interface spec. This is called after PCI bus has been
   * reset to restart the PCI card from scratch, as if from a cold-boot.
   * During the PCI subsystem error recovery, after driver returns
   * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
   * recovery and then call this routine before calling the .resume method
   * to recover the device. This function will initialize the HBA device,
   * enable the interrupt, but it will just put the HBA to offline state
   * without passing any I/O traffic.
   *
   * Return codes
   * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
   * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
   */
  static pci_ers_result_t
  lpfc_io_slot_reset_s3(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	struct lpfc_sli *psli = &phba->sli;
  	uint32_t intr_mode;
  
  	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
  	if (pci_enable_device_mem(pdev)) {
  		printk(KERN_ERR "lpfc: Cannot re-enable "
  			"PCI device after reset.\n");
  		return PCI_ERS_RESULT_DISCONNECT;
  	}
  
  	pci_restore_state(pdev);
  
  	/*
  	 * As the new kernel behavior of pci_restore_state() API call clears
  	 * device saved_state flag, need to save the restored state again.
  	 */
  	pci_save_state(pdev);
  
  	if (pdev->is_busmaster)
  		pci_set_master(pdev);
  
  	spin_lock_irq(&phba->hbalock);
  	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
  	spin_unlock_irq(&phba->hbalock);
  
  	/* Configure and enable interrupt */
  	intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
  	if (intr_mode == LPFC_INTR_ERROR) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0427 Cannot re-enable interrupt after "
  				"slot reset.\n");
  		return PCI_ERS_RESULT_DISCONNECT;
  	} else
  		phba->intr_mode = intr_mode;
  
  	/* Take device offline; this will perform cleanup */
  	lpfc_offline(phba);
  	lpfc_sli_brdrestart(phba);
  
  	/* Log the current active interrupt mode */
  	lpfc_log_intr_mode(phba, phba->intr_mode);
  
  	return PCI_ERS_RESULT_RECOVERED;
  }
  
  /**
   * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
   * @pdev: pointer to PCI device
   *
   * This routine is called from the PCI subsystem for error handling to device
   * with SLI-3 interface spec. It is called when kernel error recovery tells
   * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
   * error recovery. After this call, traffic can start to flow from this device
   * again.
   */
  static void
  lpfc_io_resume_s3(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  
  	/* Bring device online, it will be no-op for non-fatal error resume */
  	lpfc_online(phba);
  
  	/* Clean up Advanced Error Reporting (AER) if needed */
  	if (phba->hba_flag & HBA_AER_ENABLED)
  		pci_cleanup_aer_uncorrect_error_status(pdev);
  }
  
  /**
   * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
   * @phba: pointer to lpfc hba data structure.
   *
   * returns the number of ELS/CT IOCBs to reserve
   **/
  int
  lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
  {
  	int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
  
  	if (phba->sli_rev == LPFC_SLI_REV4) {
  		if (max_xri <= 100)
  			return 10;
  		else if (max_xri <= 256)
  			return 25;
  		else if (max_xri <= 512)
  			return 50;
  		else if (max_xri <= 1024)
  			return 100;
  		else
  			return 150;
  	} else
  		return 0;
  }
  
  /**
   * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
   * @pdev: pointer to PCI device
   * @pid: pointer to PCI device identifier
   *
   * This routine is called from the kernel's PCI subsystem to device with
   * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
   * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
   * information of the device and driver to see if the driver state that it
   * can support this kind of device. If the match is successful, the driver
   * core invokes this routine. If this routine determines it can claim the HBA,
   * it does all the initialization that it needs to do to handle the HBA
   * properly.
   *
   * Return code
   * 	0 - driver can claim the device
   * 	negative value - driver can not claim the device
   **/
  static int __devinit
  lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
  {
  	struct lpfc_hba   *phba;
  	struct lpfc_vport *vport = NULL;
  	struct Scsi_Host  *shost = NULL;
  	int error;
  	uint32_t cfg_mode, intr_mode;
  	int mcnt;
  
  	/* Allocate memory for HBA structure */
  	phba = lpfc_hba_alloc(pdev);
  	if (!phba)
  		return -ENOMEM;
  
  	/* Perform generic PCI device enabling operation */
  	error = lpfc_enable_pci_dev(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1409 Failed to enable pci device.\n");
  		goto out_free_phba;
  	}
  
  	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
  	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
  	if (error)
  		goto out_disable_pci_dev;
  
  	/* Set up SLI-4 specific device PCI memory space */
  	error = lpfc_sli4_pci_mem_setup(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1410 Failed to set up pci memory space.\n");
  		goto out_disable_pci_dev;
  	}
  
  	/* Set up phase-1 common device driver resources */
  	error = lpfc_setup_driver_resource_phase1(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1411 Failed to set up driver resource.\n");
  		goto out_unset_pci_mem_s4;
  	}
  
  	/* Set up SLI-4 Specific device driver resources */
  	error = lpfc_sli4_driver_resource_setup(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1412 Failed to set up driver resource.\n");
  		goto out_unset_pci_mem_s4;
  	}
  
  	/* Initialize and populate the iocb list per host */
  	error = lpfc_init_iocb_list(phba,
  			phba->sli4_hba.max_cfg_param.max_xri);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1413 Failed to initialize iocb list.\n");
  		goto out_unset_driver_resource_s4;
  	}
  
  	/* Set up common device driver resources */
  	error = lpfc_setup_driver_resource_phase2(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1414 Failed to set up driver resource.\n");
  		goto out_free_iocb_list;
  	}
  
  	/* Create SCSI host to the physical port */
  	error = lpfc_create_shost(phba);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1415 Failed to create scsi host.\n");
  		goto out_unset_driver_resource;
  	}
  
  	/* Configure sysfs attributes */
  	vport = phba->pport;
  	error = lpfc_alloc_sysfs_attr(vport);
  	if (error) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1416 Failed to allocate sysfs attr\n");
  		goto out_destroy_shost;
  	}
  
  	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
  	/* Now, trying to enable interrupt and bring up the device */
  	cfg_mode = phba->cfg_use_msi;
  	while (true) {
  		/* Put device to a known state before enabling interrupt */
  		lpfc_stop_port(phba);
  		/* Configure and enable interrupt */
  		intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
  		if (intr_mode == LPFC_INTR_ERROR) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"0426 Failed to enable interrupt.\n");
  			error = -ENODEV;
  			goto out_free_sysfs_attr;
  		}
  		/* Default to single FCP EQ for non-MSI-X */
  		if (phba->intr_type != MSIX)
  			phba->cfg_fcp_eq_count = 1;
  		/* Set up SLI-4 HBA */
  		if (lpfc_sli4_hba_setup(phba)) {
  			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  					"1421 Failed to set up hba\n");
  			error = -ENODEV;
  			goto out_disable_intr;
  		}
  
  		/* Send NOP mbx cmds for non-INTx mode active interrupt test */
  		if (intr_mode != 0)
  			mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
  							    LPFC_ACT_INTR_CNT);
  
  		/* Check active interrupts received only for MSI/MSI-X */
  		if (intr_mode == 0 ||
  		    phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
  			/* Log the current active interrupt mode */
  			phba->intr_mode = intr_mode;
  			lpfc_log_intr_mode(phba, intr_mode);
  			break;
  		}
  		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  				"0451 Configure interrupt mode (%d) "
  				"failed active interrupt test.\n",
  				intr_mode);
  		/* Unset the preivous SLI-4 HBA setup */
  		lpfc_sli4_unset_hba(phba);
  		/* Try next level of interrupt mode */
  		cfg_mode = --intr_mode;
  	}
  
  	/* Perform post initialization setup */
  	lpfc_post_init_setup(phba);
  
  	/* Check if there are static vports to be created. */
  	lpfc_create_static_vport(phba);
  
  	return 0;
  
  out_disable_intr:
  	lpfc_sli4_disable_intr(phba);
  out_free_sysfs_attr:
  	lpfc_free_sysfs_attr(vport);
  out_destroy_shost:
  	lpfc_destroy_shost(phba);
  out_unset_driver_resource:
  	lpfc_unset_driver_resource_phase2(phba);
  out_free_iocb_list:
  	lpfc_free_iocb_list(phba);
  out_unset_driver_resource_s4:
  	lpfc_sli4_driver_resource_unset(phba);
  out_unset_pci_mem_s4:
  	lpfc_sli4_pci_mem_unset(phba);
  out_disable_pci_dev:
  	lpfc_disable_pci_dev(phba);
  	if (shost)
  		scsi_host_put(shost);
  out_free_phba:
  	lpfc_hba_free(phba);
  	return error;
  }
  
  /**
   * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
   * @pdev: pointer to PCI device
   *
   * This routine is called from the kernel's PCI subsystem to device with
   * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
   * removed from PCI bus, it performs all the necessary cleanup for the HBA
   * device to be removed from the PCI subsystem properly.
   **/
  static void __devexit
  lpfc_pci_remove_one_s4(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_vport **vports;
  	struct lpfc_hba *phba = vport->phba;
  	int i;
  
  	/* Mark the device unloading flag */
  	spin_lock_irq(&phba->hbalock);
  	vport->load_flag |= FC_UNLOADING;
  	spin_unlock_irq(&phba->hbalock);
  
  	/* Free the HBA sysfs attributes */
  	lpfc_free_sysfs_attr(vport);
  
  	/* Release all the vports against this physical port */
  	vports = lpfc_create_vport_work_array(phba);
  	if (vports != NULL)
  		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
  			fc_vport_terminate(vports[i]->fc_vport);
  	lpfc_destroy_vport_work_array(phba, vports);
  
  	/* Remove FC host and then SCSI host with the physical port */
  	fc_remove_host(shost);
  	scsi_remove_host(shost);
  
  	/* Perform cleanup on the physical port */
  	lpfc_cleanup(vport);
  
  	/*
  	 * Bring down the SLI Layer. This step disables all interrupts,
  	 * clears the rings, discards all mailbox commands, and resets
  	 * the HBA FCoE function.
  	 */
  	lpfc_debugfs_terminate(vport);
  	lpfc_sli4_hba_unset(phba);
  
  	spin_lock_irq(&phba->hbalock);
  	list_del_init(&vport->listentry);
  	spin_unlock_irq(&phba->hbalock);
  
  	/* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
  	 * buffers are released to their corresponding pools here.
  	 */
  	lpfc_scsi_free(phba);
  	lpfc_sli4_driver_resource_unset(phba);
  
  	/* Unmap adapter Control and Doorbell registers */
  	lpfc_sli4_pci_mem_unset(phba);
  
  	/* Release PCI resources and disable device's PCI function */
  	scsi_host_put(shost);
  	lpfc_disable_pci_dev(phba);
  
  	/* Finally, free the driver's device data structure */
  	lpfc_hba_free(phba);
  
  	return;
  }
  
  /**
   * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
   * @pdev: pointer to PCI device
   * @msg: power management message
   *
   * This routine is called from the kernel's PCI subsystem to support system
   * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
   * this method, it quiesces the device by stopping the driver's worker
   * thread for the device, turning off device's interrupt and DMA, and bring
   * the device offline. Note that as the driver implements the minimum PM
   * requirements to a power-aware driver's PM support for suspend/resume -- all
   * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
   * method call will be treated as SUSPEND and the driver will fully
   * reinitialize its device during resume() method call, the driver will set
   * device to PCI_D3hot state in PCI config space instead of setting it
   * according to the @msg provided by the PM.
   *
   * Return code
   * 	0 - driver suspended the device
   * 	Error otherwise
   **/
  static int
  lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"0298 PCI device Power Management suspend.\n");
  
  	/* Bring down the device */
  	lpfc_offline_prep(phba);
  	lpfc_offline(phba);
  	kthread_stop(phba->worker_thread);
  
  	/* Disable interrupt from device */
  	lpfc_sli4_disable_intr(phba);
  
  	/* Save device state to PCI config space */
  	pci_save_state(pdev);
  	pci_set_power_state(pdev, PCI_D3hot);
  
  	return 0;
  }
  
  /**
   * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
   * @pdev: pointer to PCI device
   *
   * This routine is called from the kernel's PCI subsystem to support system
   * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
   * this method, it restores the device's PCI config space state and fully
   * reinitializes the device and brings it online. Note that as the driver
   * implements the minimum PM requirements to a power-aware driver's PM for
   * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
   * to the suspend() method call will be treated as SUSPEND and the driver
   * will fully reinitialize its device during resume() method call, the device
   * will be set to PCI_D0 directly in PCI config space before restoring the
   * state.
   *
   * Return code
   * 	0 - driver suspended the device
   * 	Error otherwise
   **/
  static int
  lpfc_pci_resume_one_s4(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	uint32_t intr_mode;
  	int error;
  
  	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
  			"0292 PCI device Power Management resume.\n");
  
  	/* Restore device state from PCI config space */
  	pci_set_power_state(pdev, PCI_D0);
  	pci_restore_state(pdev);
  
  	/*
  	 * As the new kernel behavior of pci_restore_state() API call clears
  	 * device saved_state flag, need to save the restored state again.
  	 */
  	pci_save_state(pdev);
  
  	if (pdev->is_busmaster)
  		pci_set_master(pdev);
  
  	 /* Startup the kernel thread for this host adapter. */
  	phba->worker_thread = kthread_run(lpfc_do_work, phba,
  					"lpfc_worker_%d", phba->brd_no);
  	if (IS_ERR(phba->worker_thread)) {
  		error = PTR_ERR(phba->worker_thread);
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0293 PM resume failed to start worker "
  				"thread: error=x%x.\n", error);
  		return error;
  	}
  
  	/* Configure and enable interrupt */
  	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
  	if (intr_mode == LPFC_INTR_ERROR) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0294 PM resume Failed to enable interrupt\n");
  		return -EIO;
  	} else
  		phba->intr_mode = intr_mode;
  
  	/* Restart HBA and bring it online */
  	lpfc_sli_brdrestart(phba);
  	lpfc_online(phba);
  
  	/* Log the current active interrupt mode */
  	lpfc_log_intr_mode(phba, phba->intr_mode);
  
  	return 0;
  }
  
  /**
   * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
   * @pdev: pointer to PCI device.
   * @state: the current PCI connection state.
   *
   * This routine is called from the PCI subsystem for error handling to device
   * with SLI-4 interface spec. This function is called by the PCI subsystem
   * after a PCI bus error affecting this device has been detected. When this
   * function is invoked, it will need to stop all the I/Os and interrupt(s)
   * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
   * for the PCI subsystem to perform proper recovery as desired.
   *
   * Return codes
   * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
   * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
   **/
  static pci_ers_result_t
  lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
  {
  	return PCI_ERS_RESULT_NEED_RESET;
  }
  
  /**
   * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
   * @pdev: pointer to PCI device.
   *
   * This routine is called from the PCI subsystem for error handling to device
   * with SLI-4 interface spec. It is called after PCI bus has been reset to
   * restart the PCI card from scratch, as if from a cold-boot. During the
   * PCI subsystem error recovery, after the driver returns
   * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
   * recovery and then call this routine before calling the .resume method to
   * recover the device. This function will initialize the HBA device, enable
   * the interrupt, but it will just put the HBA to offline state without
   * passing any I/O traffic.
   *
   * Return codes
   * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
   * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
   */
  static pci_ers_result_t
  lpfc_io_slot_reset_s4(struct pci_dev *pdev)
  {
  	return PCI_ERS_RESULT_RECOVERED;
  }
  
  /**
   * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
   * @pdev: pointer to PCI device
   *
   * This routine is called from the PCI subsystem for error handling to device
   * with SLI-4 interface spec. It is called when kernel error recovery tells
   * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
   * error recovery. After this call, traffic can start to flow from this device
   * again.
   **/
  static void
  lpfc_io_resume_s4(struct pci_dev *pdev)
  {
  	return;
  }
  
  /**
   * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
   * @pdev: pointer to PCI device
   * @pid: pointer to PCI device identifier
   *
   * This routine is to be registered to the kernel's PCI subsystem. When an
   * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
   * at PCI device-specific information of the device and driver to see if the
   * driver state that it can support this kind of device. If the match is
   * successful, the driver core invokes this routine. This routine dispatches
   * the action to the proper SLI-3 or SLI-4 device probing routine, which will
   * do all the initialization that it needs to do to handle the HBA device
   * properly.
   *
   * Return code
   * 	0 - driver can claim the device
   * 	negative value - driver can not claim the device
   **/
  static int __devinit
  lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
  {
  	int rc;
  	struct lpfc_sli_intf intf;
  
  	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
  		return -ENODEV;
  
  	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
  	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
  		rc = lpfc_pci_probe_one_s4(pdev, pid);
  	else
  		rc = lpfc_pci_probe_one_s3(pdev, pid);
  
  	return rc;
  }
  
  /**
   * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
   * @pdev: pointer to PCI device
   *
   * This routine is to be registered to the kernel's PCI subsystem. When an
   * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
   * This routine dispatches the action to the proper SLI-3 or SLI-4 device
   * remove routine, which will perform all the necessary cleanup for the
   * device to be removed from the PCI subsystem properly.
   **/
  static void __devexit
  lpfc_pci_remove_one(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		lpfc_pci_remove_one_s3(pdev);
  		break;
  	case LPFC_PCI_DEV_OC:
  		lpfc_pci_remove_one_s4(pdev);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1424 Invalid PCI device group: 0x%x\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return;
  }
  
  /**
   * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
   * @pdev: pointer to PCI device
   * @msg: power management message
   *
   * This routine is to be registered to the kernel's PCI subsystem to support
   * system Power Management (PM). When PM invokes this method, it dispatches
   * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
   * suspend the device.
   *
   * Return code
   * 	0 - driver suspended the device
   * 	Error otherwise
   **/
  static int
  lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	int rc = -ENODEV;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		rc = lpfc_pci_suspend_one_s3(pdev, msg);
  		break;
  	case LPFC_PCI_DEV_OC:
  		rc = lpfc_pci_suspend_one_s4(pdev, msg);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1425 Invalid PCI device group: 0x%x\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return rc;
  }
  
  /**
   * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
   * @pdev: pointer to PCI device
   *
   * This routine is to be registered to the kernel's PCI subsystem to support
   * system Power Management (PM). When PM invokes this method, it dispatches
   * the action to the proper SLI-3 or SLI-4 device resume routine, which will
   * resume the device.
   *
   * Return code
   * 	0 - driver suspended the device
   * 	Error otherwise
   **/
  static int
  lpfc_pci_resume_one(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	int rc = -ENODEV;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		rc = lpfc_pci_resume_one_s3(pdev);
  		break;
  	case LPFC_PCI_DEV_OC:
  		rc = lpfc_pci_resume_one_s4(pdev);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1426 Invalid PCI device group: 0x%x\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return rc;
  }
  
  /**
   * lpfc_io_error_detected - lpfc method for handling PCI I/O error
   * @pdev: pointer to PCI device.
   * @state: the current PCI connection state.
   *
   * This routine is registered to the PCI subsystem for error handling. This
   * function is called by the PCI subsystem after a PCI bus error affecting
   * this device has been detected. When this routine is invoked, it dispatches
   * the action to the proper SLI-3 or SLI-4 device error detected handling
   * routine, which will perform the proper error detected operation.
   *
   * Return codes
   * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
   * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
   **/
  static pci_ers_result_t
  lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		rc = lpfc_io_error_detected_s3(pdev, state);
  		break;
  	case LPFC_PCI_DEV_OC:
  		rc = lpfc_io_error_detected_s4(pdev, state);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1427 Invalid PCI device group: 0x%x\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return rc;
  }
  
  /**
   * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
   * @pdev: pointer to PCI device.
   *
   * This routine is registered to the PCI subsystem for error handling. This
   * function is called after PCI bus has been reset to restart the PCI card
   * from scratch, as if from a cold-boot. When this routine is invoked, it
   * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
   * routine, which will perform the proper device reset.
   *
   * Return codes
   * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
   * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
   **/
  static pci_ers_result_t
  lpfc_io_slot_reset(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		rc = lpfc_io_slot_reset_s3(pdev);
  		break;
  	case LPFC_PCI_DEV_OC:
  		rc = lpfc_io_slot_reset_s4(pdev);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1428 Invalid PCI device group: 0x%x\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return rc;
  }
  
  /**
   * lpfc_io_resume - lpfc method for resuming PCI I/O operation
   * @pdev: pointer to PCI device
   *
   * This routine is registered to the PCI subsystem for error handling. It
   * is called when kernel error recovery tells the lpfc driver that it is
   * OK to resume normal PCI operation after PCI bus error recovery. When
   * this routine is invoked, it dispatches the action to the proper SLI-3
   * or SLI-4 device io_resume routine, which will resume the device operation.
   **/
  static void
  lpfc_io_resume(struct pci_dev *pdev)
  {
  	struct Scsi_Host *shost = pci_get_drvdata(pdev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  
  	switch (phba->pci_dev_grp) {
  	case LPFC_PCI_DEV_LP:
  		lpfc_io_resume_s3(pdev);
  		break;
  	case LPFC_PCI_DEV_OC:
  		lpfc_io_resume_s4(pdev);
  		break;
  	default:
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"1429 Invalid PCI device group: 0x%x\n",
  				phba->pci_dev_grp);
  		break;
  	}
  	return;
  }
  
  static struct pci_device_id lpfc_id_table[] = {
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
  		PCI_ANY_ID, PCI_ANY_ID, },
  	{ 0 }
  };
  
  MODULE_DEVICE_TABLE(pci, lpfc_id_table);
  
  static struct pci_error_handlers lpfc_err_handler = {
  	.error_detected = lpfc_io_error_detected,
  	.slot_reset = lpfc_io_slot_reset,
  	.resume = lpfc_io_resume,
  };
  
  static struct pci_driver lpfc_driver = {
  	.name		= LPFC_DRIVER_NAME,
  	.id_table	= lpfc_id_table,
  	.probe		= lpfc_pci_probe_one,
  	.remove		= __devexit_p(lpfc_pci_remove_one),
  	.suspend        = lpfc_pci_suspend_one,
  	.resume		= lpfc_pci_resume_one,
  	.err_handler    = &lpfc_err_handler,
  };
  
  /**
   * lpfc_init - lpfc module initialization routine
   *
   * This routine is to be invoked when the lpfc module is loaded into the
   * kernel. The special kernel macro module_init() is used to indicate the
   * role of this routine to the kernel as lpfc module entry point.
   *
   * Return codes
   *   0 - successful
   *   -ENOMEM - FC attach transport failed
   *   all others - failed
   */
  static int __init
  lpfc_init(void)
  {
  	int error = 0;
  
  	printk(LPFC_MODULE_DESC "\n");
  	printk(LPFC_COPYRIGHT "\n");
  
  	if (lpfc_enable_npiv) {
  		lpfc_transport_functions.vport_create = lpfc_vport_create;
  		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
  	}
  	lpfc_transport_template =
  				fc_attach_transport(&lpfc_transport_functions);
  	if (lpfc_transport_template == NULL)
  		return -ENOMEM;
  	if (lpfc_enable_npiv) {
  		lpfc_vport_transport_template =
  			fc_attach_transport(&lpfc_vport_transport_functions);
  		if (lpfc_vport_transport_template == NULL) {
  			fc_release_transport(lpfc_transport_template);
  			return -ENOMEM;
  		}
  	}
  	error = pci_register_driver(&lpfc_driver);
  	if (error) {
  		fc_release_transport(lpfc_transport_template);
  		if (lpfc_enable_npiv)
  			fc_release_transport(lpfc_vport_transport_template);
  	}
  
  	return error;
  }
  
  /**
   * lpfc_exit - lpfc module removal routine
   *
   * This routine is invoked when the lpfc module is removed from the kernel.
   * The special kernel macro module_exit() is used to indicate the role of
   * this routine to the kernel as lpfc module exit point.
   */
  static void __exit
  lpfc_exit(void)
  {
  	pci_unregister_driver(&lpfc_driver);
  	fc_release_transport(lpfc_transport_template);
  	if (lpfc_enable_npiv)
  		fc_release_transport(lpfc_vport_transport_template);
  	if (_dump_buf_data) {
  		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
  				"_dump_buf_data at 0x%p\n",
  				(1L << _dump_buf_data_order), _dump_buf_data);
  		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
  	}
  
  	if (_dump_buf_dif) {
  		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
  				"_dump_buf_dif at 0x%p\n",
  				(1L << _dump_buf_dif_order), _dump_buf_dif);
  		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
  	}
  }
  
  module_init(lpfc_init);
  module_exit(lpfc_exit);
  MODULE_LICENSE("GPL");
  MODULE_DESCRIPTION(LPFC_MODULE_DESC);
  MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
  MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
  