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lpfc_hbadisc.c

/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2004-2006 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/pci.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>

#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>

#include "lpfc_hw.h"
#include "lpfc_disc.h"
#include "lpfc_sli.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"

/* AlpaArray for assignment of scsid for scan-down and bind_method */
static uint8_t lpfcAlpaArray[] = {
      0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
      0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
      0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
      0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
      0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
      0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
      0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
      0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
      0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
      0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
      0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
      0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
      0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
};

static void lpfc_disc_timeout_handler(struct lpfc_hba *);

static void
lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
      uint8_t *name = (uint8_t *)&ndlp->nlp_portname;
      int warn_on = 0;

      spin_lock_irq(phba->host->host_lock);
      if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
            spin_unlock_irq(phba->host->host_lock);
            return;
      }

      /*
       * If a discovery event readded nodev_timer after timer
       * firing and before processing the timer, cancel the
       * nlp_tmofunc.
       */
      spin_unlock_irq(phba->host->host_lock);
      del_timer_sync(&ndlp->nlp_tmofunc);
      spin_lock_irq(phba->host->host_lock);

      ndlp->nlp_flag &= ~NLP_NODEV_TMO;

      if (ndlp->nlp_sid != NLP_NO_SID) {
            warn_on = 1;
            /* flush the target */
            lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
                  ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
      }
      spin_unlock_irq(phba->host->host_lock);

      if (warn_on) {
            lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                        "%d:0203 Nodev timeout on "
                        "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
                        "NPort x%x Data: x%x x%x x%x\n",
                        phba->brd_no,
                        *name, *(name+1), *(name+2), *(name+3),
                        *(name+4), *(name+5), *(name+6), *(name+7),
                        ndlp->nlp_DID, ndlp->nlp_flag,
                        ndlp->nlp_state, ndlp->nlp_rpi);
      } else {
            lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
                        "%d:0204 Nodev timeout on "
                        "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
                        "NPort x%x Data: x%x x%x x%x\n",
                        phba->brd_no,
                        *name, *(name+1), *(name+2), *(name+3),
                        *(name+4), *(name+5), *(name+6), *(name+7),
                        ndlp->nlp_DID, ndlp->nlp_flag,
                        ndlp->nlp_state, ndlp->nlp_rpi);
      }

      lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
      return;
}

static void
lpfc_work_list_done(struct lpfc_hba * phba)
{
      struct lpfc_work_evt  *evtp = NULL;
      struct lpfc_nodelist  *ndlp;
      int free_evt;

      spin_lock_irq(phba->host->host_lock);
      while(!list_empty(&phba->work_list)) {
            list_remove_head((&phba->work_list), evtp, typeof(*evtp),
                         evt_listp);
            spin_unlock_irq(phba->host->host_lock);
            free_evt = 1;
            switch (evtp->evt) {
            case LPFC_EVT_NODEV_TMO:
                  ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
                  lpfc_process_nodev_timeout(phba, ndlp);
                  free_evt = 0;
                  break;
            case LPFC_EVT_ELS_RETRY:
                  ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
                  lpfc_els_retry_delay_handler(ndlp);
                  free_evt = 0;
                  break;
            case LPFC_EVT_ONLINE:
                  if (phba->hba_state < LPFC_LINK_DOWN)
                        *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
                  else
                        *(int *)(evtp->evt_arg1)  = 0;
                  complete((struct completion *)(evtp->evt_arg2));
                  break;
            case LPFC_EVT_OFFLINE:
                  if (phba->hba_state >= LPFC_LINK_DOWN)
                        lpfc_offline(phba);
                  lpfc_sli_brdrestart(phba);
                  *(int *)(evtp->evt_arg1) =
                        lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
                  complete((struct completion *)(evtp->evt_arg2));
                  break;
            case LPFC_EVT_WARM_START:
                  if (phba->hba_state >= LPFC_LINK_DOWN)
                        lpfc_offline(phba);
                  lpfc_reset_barrier(phba);
                  lpfc_sli_brdreset(phba);
                  lpfc_hba_down_post(phba);
                  *(int *)(evtp->evt_arg1) =
                        lpfc_sli_brdready(phba, HS_MBRDY);
                  complete((struct completion *)(evtp->evt_arg2));
                  break;
            case LPFC_EVT_KILL:
                  if (phba->hba_state >= LPFC_LINK_DOWN)
                        lpfc_offline(phba);
                  *(int *)(evtp->evt_arg1)
                        = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
                  complete((struct completion *)(evtp->evt_arg2));
                  break;
            }
            if (free_evt)
                  kfree(evtp);
            spin_lock_irq(phba->host->host_lock);
      }
      spin_unlock_irq(phba->host->host_lock);

}

static void
lpfc_work_done(struct lpfc_hba * phba)
{
      struct lpfc_sli_ring *pring;
      int i;
      uint32_t ha_copy;
      uint32_t control;
      uint32_t work_hba_events;

      spin_lock_irq(phba->host->host_lock);
      ha_copy = phba->work_ha;
      phba->work_ha = 0;
      work_hba_events=phba->work_hba_events;
      spin_unlock_irq(phba->host->host_lock);

      if (ha_copy & HA_ERATT)
            lpfc_handle_eratt(phba);

      if (ha_copy & HA_MBATT)
            lpfc_sli_handle_mb_event(phba);

      if (ha_copy & HA_LATT)
            lpfc_handle_latt(phba);

      if (work_hba_events & WORKER_DISC_TMO)
            lpfc_disc_timeout_handler(phba);

      if (work_hba_events & WORKER_ELS_TMO)
            lpfc_els_timeout_handler(phba);

      if (work_hba_events & WORKER_MBOX_TMO)
            lpfc_mbox_timeout_handler(phba);

      if (work_hba_events & WORKER_FDMI_TMO)
            lpfc_fdmi_tmo_handler(phba);

      spin_lock_irq(phba->host->host_lock);
      phba->work_hba_events &= ~work_hba_events;
      spin_unlock_irq(phba->host->host_lock);

      for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
            pring = &phba->sli.ring[i];
            if ((ha_copy & HA_RXATT)
                || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
                  if (pring->flag & LPFC_STOP_IOCB_MASK) {
                        pring->flag |= LPFC_DEFERRED_RING_EVENT;
                  } else {
                        lpfc_sli_handle_slow_ring_event(phba, pring,
                                                (ha_copy &
                                                 HA_RXMASK));
                        pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
                  }
                  /*
                   * Turn on Ring interrupts
                   */
                  spin_lock_irq(phba->host->host_lock);
                  control = readl(phba->HCregaddr);
                  control |= (HC_R0INT_ENA << i);
                  writel(control, phba->HCregaddr);
                  readl(phba->HCregaddr); /* flush */
                  spin_unlock_irq(phba->host->host_lock);
            }
      }

      lpfc_work_list_done (phba);

}

static int
check_work_wait_done(struct lpfc_hba *phba) {

      spin_lock_irq(phba->host->host_lock);
      if (phba->work_ha ||
          phba->work_hba_events ||
          (!list_empty(&phba->work_list)) ||
          kthread_should_stop()) {
            spin_unlock_irq(phba->host->host_lock);
            return 1;
      } else {
            spin_unlock_irq(phba->host->host_lock);
            return 0;
      }
}

int
lpfc_do_work(void *p)
{
      struct lpfc_hba *phba = p;
      int rc;
      DECLARE_WAIT_QUEUE_HEAD(work_waitq);

      set_user_nice(current, -20);
      phba->work_wait = &work_waitq;

      while (1) {

            rc = wait_event_interruptible(work_waitq,
                                    check_work_wait_done(phba));
            BUG_ON(rc);

            if (kthread_should_stop())
                  break;

            lpfc_work_done(phba);

      }
      phba->work_wait = NULL;
      return 0;
}

/*
 * This is only called to handle FC worker events. Since this a rare
 * occurance, we allocate a struct lpfc_work_evt structure here instead of
 * embedding it in the IOCB.
 */
int
lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
                  uint32_t evt)
{
      struct lpfc_work_evt  *evtp;

      /*
       * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
       * be queued to worker thread for processing
       */
      evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
      if (!evtp)
            return 0;

      evtp->evt_arg1  = arg1;
      evtp->evt_arg2  = arg2;
      evtp->evt       = evt;

      spin_lock_irq(phba->host->host_lock);
      list_add_tail(&evtp->evt_listp, &phba->work_list);
      if (phba->work_wait)
            wake_up(phba->work_wait);
      spin_unlock_irq(phba->host->host_lock);

      return 1;
}

int
lpfc_linkdown(struct lpfc_hba * phba)
{
      struct lpfc_sli       *psli;
      struct lpfc_nodelist  *ndlp, *next_ndlp;
      struct list_head *listp, *node_list[7];
      LPFC_MBOXQ_t     *mb;
      int               rc, i;

      psli = &phba->sli;
      /* sysfs or selective reset may call this routine to clean up */
      if (phba->hba_state >= LPFC_LINK_DOWN) {
            if (phba->hba_state == LPFC_LINK_DOWN)
                  return 0;

            spin_lock_irq(phba->host->host_lock);
            phba->hba_state = LPFC_LINK_DOWN;
            spin_unlock_irq(phba->host->host_lock);
      }

      /* Clean up any firmware default rpi's */
      if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
            lpfc_unreg_did(phba, 0xffffffff, mb);
            mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
            if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
                == MBX_NOT_FINISHED) {
                  mempool_free( mb, phba->mbox_mem_pool);
            }
      }

      /* Cleanup any outstanding RSCN activity */
      lpfc_els_flush_rscn(phba);

      /* Cleanup any outstanding ELS commands */
      lpfc_els_flush_cmd(phba);

      /* Issue a LINK DOWN event to all nodes */
      node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
      node_list[1] = &phba->fc_nlpmap_list;
      node_list[2] = &phba->fc_nlpunmap_list;
      node_list[3] = &phba->fc_prli_list;
      node_list[4] = &phba->fc_reglogin_list;
      node_list[5] = &phba->fc_adisc_list;
      node_list[6] = &phba->fc_plogi_list;
      for (i = 0; i < 7; i++) {
            listp = node_list[i];
            if (list_empty(listp))
                  continue;

            list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {

                  rc = lpfc_disc_state_machine(phba, ndlp, NULL,
                                   NLP_EVT_DEVICE_RECOVERY);

                  /* Check config parameter use-adisc or FCP-2 */
                  if ((rc != NLP_STE_FREED_NODE) &&
                        (phba->cfg_use_adisc == 0) &&
                        !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
                        /* We know we will have to relogin, so
                         * unreglogin the rpi right now to fail
                         * any outstanding I/Os quickly.
                         */
                        lpfc_unreg_rpi(phba, ndlp);
                  }
            }
      }

      /* free any ndlp's on unused list */
      list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
                        nlp_listp) {
            lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
      }

      /* Setup myDID for link up if we are in pt2pt mode */
      if (phba->fc_flag & FC_PT2PT) {
            phba->fc_myDID = 0;
            if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
                  lpfc_config_link(phba, mb);
                  mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
                  if (lpfc_sli_issue_mbox
                      (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
                      == MBX_NOT_FINISHED) {
                        mempool_free( mb, phba->mbox_mem_pool);
                  }
            }
            spin_lock_irq(phba->host->host_lock);
            phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
            spin_unlock_irq(phba->host->host_lock);
      }
      spin_lock_irq(phba->host->host_lock);
      phba->fc_flag &= ~FC_LBIT;
      spin_unlock_irq(phba->host->host_lock);

      /* Turn off discovery timer if its running */
      lpfc_can_disctmo(phba);

      /* Must process IOCBs on all rings to handle ABORTed I/Os */
      return 0;
}

static int
lpfc_linkup(struct lpfc_hba * phba)
{
      struct lpfc_nodelist *ndlp, *next_ndlp;
      struct list_head *listp, *node_list[7];
      int i;

      spin_lock_irq(phba->host->host_lock);
      phba->hba_state = LPFC_LINK_UP;
      phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
                     FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
      phba->fc_flag |= FC_NDISC_ACTIVE;
      phba->fc_ns_retry = 0;
      spin_unlock_irq(phba->host->host_lock);


      node_list[0] = &phba->fc_plogi_list;
      node_list[1] = &phba->fc_adisc_list;
      node_list[2] = &phba->fc_reglogin_list;
      node_list[3] = &phba->fc_prli_list;
      node_list[4] = &phba->fc_nlpunmap_list;
      node_list[5] = &phba->fc_nlpmap_list;
      node_list[6] = &phba->fc_npr_list;
      for (i = 0; i < 7; i++) {
            listp = node_list[i];
            if (list_empty(listp))
                  continue;

            list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
                  if (phba->fc_flag & FC_LBIT) {
                        if (ndlp->nlp_type & NLP_FABRIC) {
                              /* On Linkup its safe to clean up the
                               * ndlp from Fabric connections.
                               */
                              lpfc_nlp_list(phba, ndlp,
                                          NLP_UNUSED_LIST);
                        } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
                              /* Fail outstanding IO now since device
                               * is marked for PLOGI.
                               */
                              lpfc_unreg_rpi(phba, ndlp);
                        }
                  }
            }
      }

      /* free any ndlp's on unused list */
      list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
                        nlp_listp) {
            lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
      }

      return 0;
}

/*
 * This routine handles processing a CLEAR_LA mailbox
 * command upon completion. It is setup in the LPFC_MBOXQ
 * as the completion routine when the command is
 * handed off to the SLI layer.
 */
void
lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      struct lpfc_sli *psli;
      MAILBOX_t *mb;
      uint32_t control;

      psli = &phba->sli;
      mb = &pmb->mb;
      /* Since we don't do discovery right now, turn these off here */
      psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
      psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
      psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;

      /* Check for error */
      if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
            /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
            lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
                        "%d:0320 CLEAR_LA mbxStatus error x%x hba "
                        "state x%x\n",
                        phba->brd_no, mb->mbxStatus, phba->hba_state);

            phba->hba_state = LPFC_HBA_ERROR;
            goto out;
      }

      if (phba->fc_flag & FC_ABORT_DISCOVERY)
            goto out;

      phba->num_disc_nodes = 0;
      /* go thru NPR list and issue ELS PLOGIs */
      if (phba->fc_npr_cnt) {
            lpfc_els_disc_plogi(phba);
      }

      if (!phba->num_disc_nodes) {
            spin_lock_irq(phba->host->host_lock);
            phba->fc_flag &= ~FC_NDISC_ACTIVE;
            spin_unlock_irq(phba->host->host_lock);
      }

      phba->hba_state = LPFC_HBA_READY;

out:
      /* Device Discovery completes */
      lpfc_printf_log(phba,
                   KERN_INFO,
                   LOG_DISCOVERY,
                   "%d:0225 Device Discovery completes\n",
                   phba->brd_no);

      mempool_free( pmb, phba->mbox_mem_pool);

      spin_lock_irq(phba->host->host_lock);
      phba->fc_flag &= ~FC_ABORT_DISCOVERY;
      if (phba->fc_flag & FC_ESTABLISH_LINK) {
            phba->fc_flag &= ~FC_ESTABLISH_LINK;
      }
      spin_unlock_irq(phba->host->host_lock);

      del_timer_sync(&phba->fc_estabtmo);

      lpfc_can_disctmo(phba);

      /* turn on Link Attention interrupts */
      spin_lock_irq(phba->host->host_lock);
      psli->sli_flag |= LPFC_PROCESS_LA;
      control = readl(phba->HCregaddr);
      control |= HC_LAINT_ENA;
      writel(control, phba->HCregaddr);
      readl(phba->HCregaddr); /* flush */
      spin_unlock_irq(phba->host->host_lock);

      return;
}

static void
lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
      struct lpfc_sli *psli = &phba->sli;
      int rc;

      if (pmb->mb.mbxStatus)
            goto out;

      mempool_free(pmb, phba->mbox_mem_pool);

      if (phba->fc_topology == TOPOLOGY_LOOP &&
            phba->fc_flag & FC_PUBLIC_LOOP &&
             !(phba->fc_flag & FC_LBIT)) {
                  /* Need to wait for FAN - use discovery timer
                   * for timeout.  hba_state is identically
                   * LPFC_LOCAL_CFG_LINK while waiting for FAN
                   */
                  lpfc_set_disctmo(phba);
                  return;
            }

      /* Start discovery by sending a FLOGI. hba_state is identically
       * LPFC_FLOGI while waiting for FLOGI cmpl
       */
      phba->hba_state = LPFC_FLOGI;
      lpfc_set_disctmo(phba);
      lpfc_initial_flogi(phba);
      return;

out:
      lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
                  "%d:0306 CONFIG_LINK mbxStatus error x%x "
                  "HBA state x%x\n",
                  phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);

      lpfc_linkdown(phba);

      phba->hba_state = LPFC_HBA_ERROR;

      lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                  "%d:0200 CONFIG_LINK bad hba state x%x\n",
                  phba->brd_no, phba->hba_state);

      lpfc_clear_la(phba, pmb);
      pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
      rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
      if (rc == MBX_NOT_FINISHED) {
            mempool_free(pmb, phba->mbox_mem_pool);
            lpfc_disc_flush_list(phba);
            psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
            psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
            psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
            phba->hba_state = LPFC_HBA_READY;
      }
      return;
}

static void
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      struct lpfc_sli *psli = &phba->sli;
      MAILBOX_t *mb = &pmb->mb;
      struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;


      /* Check for error */
      if (mb->mbxStatus) {
            /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
            lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
                        "%d:0319 READ_SPARAM mbxStatus error x%x "
                        "hba state x%x>\n",
                        phba->brd_no, mb->mbxStatus, phba->hba_state);

            lpfc_linkdown(phba);
            phba->hba_state = LPFC_HBA_ERROR;
            goto out;
      }

      memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
             sizeof (struct serv_parm));
      memcpy((uint8_t *) & phba->fc_nodename,
             (uint8_t *) & phba->fc_sparam.nodeName,
             sizeof (struct lpfc_name));
      memcpy((uint8_t *) & phba->fc_portname,
             (uint8_t *) & phba->fc_sparam.portName,
             sizeof (struct lpfc_name));
      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      mempool_free( pmb, phba->mbox_mem_pool);
      return;

out:
      pmb->context1 = NULL;
      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      if (phba->hba_state != LPFC_CLEAR_LA) {
            lpfc_clear_la(phba, pmb);
            pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
            if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
                == MBX_NOT_FINISHED) {
                  mempool_free( pmb, phba->mbox_mem_pool);
                  lpfc_disc_flush_list(phba);
                  psli->ring[(psli->ip_ring)].flag &=
                      ~LPFC_STOP_IOCB_EVENT;
                  psli->ring[(psli->fcp_ring)].flag &=
                      ~LPFC_STOP_IOCB_EVENT;
                  psli->ring[(psli->next_ring)].flag &=
                      ~LPFC_STOP_IOCB_EVENT;
                  phba->hba_state = LPFC_HBA_READY;
            }
      } else {
            mempool_free( pmb, phba->mbox_mem_pool);
      }
      return;
}

static void
lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
{
      int i;
      LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
      sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
      cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);

      spin_lock_irq(phba->host->host_lock);
      switch (la->UlnkSpeed) {
            case LA_1GHZ_LINK:
                  phba->fc_linkspeed = LA_1GHZ_LINK;
                  break;
            case LA_2GHZ_LINK:
                  phba->fc_linkspeed = LA_2GHZ_LINK;
                  break;
            case LA_4GHZ_LINK:
                  phba->fc_linkspeed = LA_4GHZ_LINK;
                  break;
            default:
                  phba->fc_linkspeed = LA_UNKNW_LINK;
                  break;
      }

      phba->fc_topology = la->topology;

      if (phba->fc_topology == TOPOLOGY_LOOP) {
      /* Get Loop Map information */

            if (la->il)
                  phba->fc_flag |= FC_LBIT;

            phba->fc_myDID = la->granted_AL_PA;
            i = la->un.lilpBde64.tus.f.bdeSize;

            if (i == 0) {
                  phba->alpa_map[0] = 0;
            } else {
                  if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
                        int numalpa, j, k;
                        union {
                              uint8_t pamap[16];
                              struct {
                                    uint32_t wd1;
                                    uint32_t wd2;
                                    uint32_t wd3;
                                    uint32_t wd4;
                              } pa;
                        } un;
                        numalpa = phba->alpa_map[0];
                        j = 0;
                        while (j < numalpa) {
                              memset(un.pamap, 0, 16);
                              for (k = 1; j < numalpa; k++) {
                                    un.pamap[k - 1] =
                                          phba->alpa_map[j + 1];
                                    j++;
                                    if (k == 16)
                                          break;
                              }
                              /* Link Up Event ALPA map */
                              lpfc_printf_log(phba,
                                    KERN_WARNING,
                                    LOG_LINK_EVENT,
                                    "%d:1304 Link Up Event "
                                    "ALPA map Data: x%x "
                                    "x%x x%x x%x\n",
                                    phba->brd_no,
                                    un.pa.wd1, un.pa.wd2,
                                    un.pa.wd3, un.pa.wd4);
                        }
                  }
            }
      } else {
            phba->fc_myDID = phba->fc_pref_DID;
            phba->fc_flag |= FC_LBIT;
      }
      spin_unlock_irq(phba->host->host_lock);

      lpfc_linkup(phba);
      if (sparam_mbox) {
            lpfc_read_sparam(phba, sparam_mbox);
            sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
            lpfc_sli_issue_mbox(phba, sparam_mbox,
                                    (MBX_NOWAIT | MBX_STOP_IOCB));
      }

      if (cfglink_mbox) {
            phba->hba_state = LPFC_LOCAL_CFG_LINK;
            lpfc_config_link(phba, cfglink_mbox);
            cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
            lpfc_sli_issue_mbox(phba, cfglink_mbox,
                                    (MBX_NOWAIT | MBX_STOP_IOCB));
      }
}

static void
lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
      uint32_t control;
      struct lpfc_sli *psli = &phba->sli;

      lpfc_linkdown(phba);

      /* turn on Link Attention interrupts - no CLEAR_LA needed */
      spin_lock_irq(phba->host->host_lock);
      psli->sli_flag |= LPFC_PROCESS_LA;
      control = readl(phba->HCregaddr);
      control |= HC_LAINT_ENA;
      writel(control, phba->HCregaddr);
      readl(phba->HCregaddr); /* flush */
      spin_unlock_irq(phba->host->host_lock);
}

/*
 * This routine handles processing a READ_LA mailbox
 * command upon completion. It is setup in the LPFC_MBOXQ
 * as the completion routine when the command is
 * handed off to the SLI layer.
 */
void
lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      READ_LA_VAR *la;
      MAILBOX_t *mb = &pmb->mb;
      struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);

      /* Check for error */
      if (mb->mbxStatus) {
            lpfc_printf_log(phba,
                        KERN_INFO,
                        LOG_LINK_EVENT,
                        "%d:1307 READ_LA mbox error x%x state x%x\n",
                        phba->brd_no,
                        mb->mbxStatus, phba->hba_state);
            lpfc_mbx_issue_link_down(phba);
            phba->hba_state = LPFC_HBA_ERROR;
            goto lpfc_mbx_cmpl_read_la_free_mbuf;
      }

      la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;

      memcpy(&phba->alpa_map[0], mp->virt, 128);

      spin_lock_irq(phba->host->host_lock);
      if (la->pb)
            phba->fc_flag |= FC_BYPASSED_MODE;
      else
            phba->fc_flag &= ~FC_BYPASSED_MODE;
      spin_unlock_irq(phba->host->host_lock);

      if (((phba->fc_eventTag + 1) < la->eventTag) ||
           (phba->fc_eventTag == la->eventTag)) {
            phba->fc_stat.LinkMultiEvent++;
            if (la->attType == AT_LINK_UP) {
                  if (phba->fc_eventTag != 0)
                        lpfc_linkdown(phba);
            }
      }

      phba->fc_eventTag = la->eventTag;

      if (la->attType == AT_LINK_UP) {
            phba->fc_stat.LinkUp++;
            lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
                        "%d:1303 Link Up Event x%x received "
                        "Data: x%x x%x x%x x%x\n",
                        phba->brd_no, la->eventTag, phba->fc_eventTag,
                        la->granted_AL_PA, la->UlnkSpeed,
                        phba->alpa_map[0]);
            lpfc_mbx_process_link_up(phba, la);
      } else {
            phba->fc_stat.LinkDown++;
            lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
                        "%d:1305 Link Down Event x%x received "
                        "Data: x%x x%x x%x\n",
                        phba->brd_no, la->eventTag, phba->fc_eventTag,
                        phba->hba_state, phba->fc_flag);
            lpfc_mbx_issue_link_down(phba);
      }

lpfc_mbx_cmpl_read_la_free_mbuf:
      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      mempool_free(pmb, phba->mbox_mem_pool);
      return;
}

/*
 * This routine handles processing a REG_LOGIN mailbox
 * command upon completion. It is setup in the LPFC_MBOXQ
 * as the completion routine when the command is
 * handed off to the SLI layer.
 */
void
lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      struct lpfc_sli *psli;
      MAILBOX_t *mb;
      struct lpfc_dmabuf *mp;
      struct lpfc_nodelist *ndlp;

      psli = &phba->sli;
      mb = &pmb->mb;

      ndlp = (struct lpfc_nodelist *) pmb->context2;
      mp = (struct lpfc_dmabuf *) (pmb->context1);

      pmb->context1 = NULL;

      /* Good status, call state machine */
      lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      mempool_free( pmb, phba->mbox_mem_pool);

      return;
}

/*
 * This routine handles processing a Fabric REG_LOGIN mailbox
 * command upon completion. It is setup in the LPFC_MBOXQ
 * as the completion routine when the command is
 * handed off to the SLI layer.
 */
void
lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      struct lpfc_sli *psli;
      MAILBOX_t *mb;
      struct lpfc_dmabuf *mp;
      struct lpfc_nodelist *ndlp;
      struct lpfc_nodelist *ndlp_fdmi;


      psli = &phba->sli;
      mb = &pmb->mb;

      ndlp = (struct lpfc_nodelist *) pmb->context2;
      mp = (struct lpfc_dmabuf *) (pmb->context1);

      if (mb->mbxStatus) {
            lpfc_mbuf_free(phba, mp->virt, mp->phys);
            kfree(mp);
            mempool_free( pmb, phba->mbox_mem_pool);
            mempool_free( ndlp, phba->nlp_mem_pool);

            /* FLOGI failed, so just use loop map to make discovery list */
            lpfc_disc_list_loopmap(phba);

            /* Start discovery */
            lpfc_disc_start(phba);
            return;
      }

      pmb->context1 = NULL;

      ndlp->nlp_rpi = mb->un.varWords[0];
      ndlp->nlp_type |= NLP_FABRIC;
      ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
      lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);

      if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
            /* This NPort has been assigned an NPort_ID by the fabric as a
             * result of the completed fabric login.  Issue a State Change
             * Registration (SCR) ELS request to the fabric controller
             * (SCR_DID) so that this NPort gets RSCN events from the
             * fabric.
             */
            lpfc_issue_els_scr(phba, SCR_DID, 0);

            ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
            if (!ndlp) {
                  /* Allocate a new node instance. If the pool is empty,
                   * start the discovery process and skip the Nameserver
                   * login process.  This is attempted again later on.
                   * Otherwise, issue a Port Login (PLOGI) to NameServer.
                   */
                  ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
                  if (!ndlp) {
                        lpfc_disc_start(phba);
                        lpfc_mbuf_free(phba, mp->virt, mp->phys);
                        kfree(mp);
                        mempool_free( pmb, phba->mbox_mem_pool);
                        return;
                  } else {
                        lpfc_nlp_init(phba, ndlp, NameServer_DID);
                        ndlp->nlp_type |= NLP_FABRIC;
                  }
            }
            ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
            lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
            lpfc_issue_els_plogi(phba, NameServer_DID, 0);
            if (phba->cfg_fdmi_on) {
                  ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
                                                GFP_KERNEL);
                  if (ndlp_fdmi) {
                        lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
                        ndlp_fdmi->nlp_type |= NLP_FABRIC;
                        ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
                        lpfc_issue_els_plogi(phba, FDMI_DID, 0);
                  }
            }
      }

      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      mempool_free( pmb, phba->mbox_mem_pool);
      return;
}

/*
 * This routine handles processing a NameServer REG_LOGIN mailbox
 * command upon completion. It is setup in the LPFC_MBOXQ
 * as the completion routine when the command is
 * handed off to the SLI layer.
 */
void
lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      struct lpfc_sli *psli;
      MAILBOX_t *mb;
      struct lpfc_dmabuf *mp;
      struct lpfc_nodelist *ndlp;

      psli = &phba->sli;
      mb = &pmb->mb;

      ndlp = (struct lpfc_nodelist *) pmb->context2;
      mp = (struct lpfc_dmabuf *) (pmb->context1);

      if (mb->mbxStatus) {
            lpfc_mbuf_free(phba, mp->virt, mp->phys);
            kfree(mp);
            mempool_free( pmb, phba->mbox_mem_pool);
            lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);

            /* RegLogin failed, so just use loop map to make discovery
               list */
            lpfc_disc_list_loopmap(phba);

            /* Start discovery */
            lpfc_disc_start(phba);
            return;
      }

      pmb->context1 = NULL;

      ndlp->nlp_rpi = mb->un.varWords[0];
      ndlp->nlp_type |= NLP_FABRIC;
      ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
      lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);

      if (phba->hba_state < LPFC_HBA_READY) {
            /* Link up discovery requires Fabrib registration. */
            lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
            lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
            lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
      }

      phba->fc_ns_retry = 0;
      /* Good status, issue CT Request to NameServer */
      if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
            /* Cannot issue NameServer Query, so finish up discovery */
            lpfc_disc_start(phba);
      }

      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      mempool_free( pmb, phba->mbox_mem_pool);

      return;
}

static void
lpfc_register_remote_port(struct lpfc_hba * phba,
                      struct lpfc_nodelist * ndlp)
{
      struct fc_rport *rport;
      struct lpfc_rport_data *rdata;
      struct fc_rport_identifiers rport_ids;

      /* Remote port has reappeared. Re-register w/ FC transport */
      rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
      rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
      rport_ids.port_id = ndlp->nlp_DID;
      rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;

      ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
      if (!rport) {
            dev_printk(KERN_WARNING, &phba->pcidev->dev,
                     "Warning: fc_remote_port_add failed\n");
            return;
      }

      /* initialize static port data */
      rport->maxframe_size = ndlp->nlp_maxframe;
      rport->supported_classes = ndlp->nlp_class_sup;
      rdata = rport->dd_data;
      rdata->pnode = ndlp;

      if (ndlp->nlp_type & NLP_FCP_TARGET)
            rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
      if (ndlp->nlp_type & NLP_FCP_INITIATOR)
            rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;


      if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
            fc_remote_port_rolechg(rport, rport_ids.roles);

      if ((rport->scsi_target_id != -1) &&
            (rport->scsi_target_id < LPFC_MAX_TARGET)) {
            ndlp->nlp_sid = rport->scsi_target_id;
      }

      return;
}

static void
lpfc_unregister_remote_port(struct lpfc_hba * phba,
                      struct lpfc_nodelist * ndlp)
{
      struct fc_rport *rport = ndlp->rport;
      struct lpfc_rport_data *rdata = rport->dd_data;

      ndlp->rport = NULL;
      rdata->pnode = NULL;
      fc_remote_port_delete(rport);

      return;
}

int
lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
{
      enum { none, unmapped, mapped } rport_add = none, rport_del = none;
      struct lpfc_sli      *psli;

      psli = &phba->sli;
      /* Sanity check to ensure we are not moving to / from the same list */
      if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
            if (list != NLP_NO_LIST)
                  return 0;

      spin_lock_irq(phba->host->host_lock);
      switch (nlp->nlp_flag & NLP_LIST_MASK) {
      case NLP_NO_LIST: /* Not on any list */
            break;
      case NLP_UNUSED_LIST:
            phba->fc_unused_cnt--;
            list_del(&nlp->nlp_listp);
            break;
      case NLP_PLOGI_LIST:
            phba->fc_plogi_cnt--;
            list_del(&nlp->nlp_listp);
            break;
      case NLP_ADISC_LIST:
            phba->fc_adisc_cnt--;
            list_del(&nlp->nlp_listp);
            break;
      case NLP_REGLOGIN_LIST:
            phba->fc_reglogin_cnt--;
            list_del(&nlp->nlp_listp);
            break;
      case NLP_PRLI_LIST:
            phba->fc_prli_cnt--;
            list_del(&nlp->nlp_listp);
            break;
      case NLP_UNMAPPED_LIST:
            phba->fc_unmap_cnt--;
            list_del(&nlp->nlp_listp);
            nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
            nlp->nlp_type &= ~NLP_FC_NODE;
            phba->nport_event_cnt++;
            if (nlp->rport)
                  rport_del = unmapped;
            break;
      case NLP_MAPPED_LIST:
            phba->fc_map_cnt--;
            list_del(&nlp->nlp_listp);
            phba->nport_event_cnt++;
            if (nlp->rport)
                  rport_del = mapped;
            break;
      case NLP_NPR_LIST:
            phba->fc_npr_cnt--;
            list_del(&nlp->nlp_listp);
            /* Stop delay tmo if taking node off NPR list */
            if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
               (list != NLP_NPR_LIST)) {
                  spin_unlock_irq(phba->host->host_lock);
                  lpfc_cancel_retry_delay_tmo(phba, nlp);
                  spin_lock_irq(phba->host->host_lock);
            }
            break;
      }

      nlp->nlp_flag &= ~NLP_LIST_MASK;

      /* Add NPort <did> to <num> list */
      lpfc_printf_log(phba,
                  KERN_INFO,
                  LOG_NODE,
                  "%d:0904 Add NPort x%x to %d list Data: x%x\n",
                  phba->brd_no,
                  nlp->nlp_DID, list, nlp->nlp_flag);

      switch (list) {
      case NLP_NO_LIST: /* No list, just remove it */
            spin_unlock_irq(phba->host->host_lock);
            lpfc_nlp_remove(phba, nlp);
            spin_lock_irq(phba->host->host_lock);
            /* as node removed - stop further transport calls */
            rport_del = none;
            break;
      case NLP_UNUSED_LIST:
            nlp->nlp_flag |= list;
            /* Put it at the end of the unused list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
            phba->fc_unused_cnt++;
            break;
      case NLP_PLOGI_LIST:
            nlp->nlp_flag |= list;
            /* Put it at the end of the plogi list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
            phba->fc_plogi_cnt++;
            break;
      case NLP_ADISC_LIST:
            nlp->nlp_flag |= list;
            /* Put it at the end of the adisc list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
            phba->fc_adisc_cnt++;
            break;
      case NLP_REGLOGIN_LIST:
            nlp->nlp_flag |= list;
            /* Put it at the end of the reglogin list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
            phba->fc_reglogin_cnt++;
            break;
      case NLP_PRLI_LIST:
            nlp->nlp_flag |= list;
            /* Put it at the end of the prli list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
            phba->fc_prli_cnt++;
            break;
      case NLP_UNMAPPED_LIST:
            rport_add = unmapped;
            /* ensure all vestiges of "mapped" significance are gone */
            nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
            nlp->nlp_flag |= list;
            /* Put it at the end of the unmap list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
            phba->fc_unmap_cnt++;
            phba->nport_event_cnt++;
            /* stop nodev tmo if running */
            if (nlp->nlp_flag & NLP_NODEV_TMO) {
                  nlp->nlp_flag &= ~NLP_NODEV_TMO;
                  spin_unlock_irq(phba->host->host_lock);
                  del_timer_sync(&nlp->nlp_tmofunc);
                  spin_lock_irq(phba->host->host_lock);
                  if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
                        list_del_init(&nlp->nodev_timeout_evt.
                                    evt_listp);

            }
            nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
            nlp->nlp_type |= NLP_FC_NODE;
            break;
      case NLP_MAPPED_LIST:
            rport_add = mapped;
            nlp->nlp_flag |= list;
            /* Put it at the end of the map list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
            phba->fc_map_cnt++;
            phba->nport_event_cnt++;
            /* stop nodev tmo if running */
            if (nlp->nlp_flag & NLP_NODEV_TMO) {
                  nlp->nlp_flag &= ~NLP_NODEV_TMO;
                  spin_unlock_irq(phba->host->host_lock);
                  del_timer_sync(&nlp->nlp_tmofunc);
                  spin_lock_irq(phba->host->host_lock);
                  if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
                        list_del_init(&nlp->nodev_timeout_evt.
                                    evt_listp);

            }
            nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
            break;
      case NLP_NPR_LIST:
            nlp->nlp_flag |= list;
            /* Put it at the end of the npr list */
            list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
            phba->fc_npr_cnt++;

            if (!(nlp->nlp_flag & NLP_NODEV_TMO))
                  mod_timer(&nlp->nlp_tmofunc,
                              jiffies + HZ * phba->cfg_nodev_tmo);

            nlp->nlp_flag |= NLP_NODEV_TMO;
            nlp->nlp_flag &= ~NLP_RCV_PLOGI;
            break;
      case NLP_JUST_DQ:
            break;
      }

      spin_unlock_irq(phba->host->host_lock);

      /*
       * We make all the calls into the transport after we have
       * moved the node between lists. This so that we don't
       * release the lock while in-between lists.
       */

      /* Don't upcall midlayer if we're unloading */
      if (!(phba->fc_flag & FC_UNLOADING)) {
            /*
             * We revalidate the rport pointer as the "add" function
             * may have removed the remote port.
             */
            if ((rport_del != none) && nlp->rport)
                  lpfc_unregister_remote_port(phba, nlp);

            if (rport_add != none) {
                  /*
                   * Tell the fc transport about the port, if we haven't
                   * already. If we have, and it's a scsi entity, be
                   * sure to unblock any attached scsi devices
                   */
                  if (!nlp->rport)
                        lpfc_register_remote_port(phba, nlp);

                  /*
                   * if we added to Mapped list, but the remote port
                   * registration failed or assigned a target id outside
                   * our presentable range - move the node to the
                   * Unmapped List
                   */
                  if ((rport_add == mapped) &&
                      ((!nlp->rport) ||
                       (nlp->rport->scsi_target_id == -1) ||
                       (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
                        nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
                        spin_lock_irq(phba->host->host_lock);
                        nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
                        spin_unlock_irq(phba->host->host_lock);
                        lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
                  }
            }
      }
      return 0;
}

/*
 * Start / ReStart rescue timer for Discovery / RSCN handling
 */
void
lpfc_set_disctmo(struct lpfc_hba * phba)
{
      uint32_t tmo;

      if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
            /* For FAN, timeout should be greater then edtov */
            tmo = (((phba->fc_edtov + 999) / 1000) + 1);
      } else {
            /* Normal discovery timeout should be > then ELS/CT timeout
             * FC spec states we need 3 * ratov for CT requests
             */
            tmo = ((phba->fc_ratov * 3) + 3);
      }

      mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
      spin_lock_irq(phba->host->host_lock);
      phba->fc_flag |= FC_DISC_TMO;
      spin_unlock_irq(phba->host->host_lock);

      /* Start Discovery Timer state <hba_state> */
      lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
                  "%d:0247 Start Discovery Timer state x%x "
                  "Data: x%x x%lx x%x x%x\n",
                  phba->brd_no,
                  phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
                  phba->fc_plogi_cnt, phba->fc_adisc_cnt);

      return;
}

/*
 * Cancel rescue timer for Discovery / RSCN handling
 */
int
lpfc_can_disctmo(struct lpfc_hba * phba)
{
      /* Turn off discovery timer if its running */
      if (phba->fc_flag & FC_DISC_TMO) {
            spin_lock_irq(phba->host->host_lock);
            phba->fc_flag &= ~FC_DISC_TMO;
            spin_unlock_irq(phba->host->host_lock);
            del_timer_sync(&phba->fc_disctmo);
            phba->work_hba_events &= ~WORKER_DISC_TMO;
      }

      /* Cancel Discovery Timer state <hba_state> */
      lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
                  "%d:0248 Cancel Discovery Timer state x%x "
                  "Data: x%x x%x x%x\n",
                  phba->brd_no, phba->hba_state, phba->fc_flag,
                  phba->fc_plogi_cnt, phba->fc_adisc_cnt);

      return 0;
}

/*
 * Check specified ring for outstanding IOCB on the SLI queue
 * Return true if iocb matches the specified nport
 */
int
lpfc_check_sli_ndlp(struct lpfc_hba * phba,
                struct lpfc_sli_ring * pring,
                struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
{
      struct lpfc_sli *psli;
      IOCB_t *icmd;

      psli = &phba->sli;
      icmd = &iocb->iocb;
      if (pring->ringno == LPFC_ELS_RING) {
            switch (icmd->ulpCommand) {
            case CMD_GEN_REQUEST64_CR:
                  if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
                        return 1;
            case CMD_ELS_REQUEST64_CR:
                  if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
                        return 1;
            case CMD_XMIT_ELS_RSP64_CX:
                  if (iocb->context1 == (uint8_t *) ndlp)
                        return 1;
            }
      } else if (pring->ringno == psli->ip_ring) {

      } else if (pring->ringno == psli->fcp_ring) {
            /* Skip match check if waiting to relogin to FCP target */
            if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
              (ndlp->nlp_flag & NLP_DELAY_TMO)) {
                  return 0;
            }
            if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
                  return 1;
            }
      } else if (pring->ringno == psli->next_ring) {

      }
      return 0;
}

/*
 * Free resources / clean up outstanding I/Os
 * associated with nlp_rpi in the LPFC_NODELIST entry.
 */
static int
lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
{
      struct lpfc_sli *psli;
      struct lpfc_sli_ring *pring;
      struct lpfc_iocbq *iocb, *next_iocb;
      IOCB_t *icmd;
      uint32_t rpi, i;

      /*
       * Everything that matches on txcmplq will be returned
       * by firmware with a no rpi error.
       */
      psli = &phba->sli;
      rpi = ndlp->nlp_rpi;
      if (rpi) {
            /* Now process each ring */
            for (i = 0; i < psli->num_rings; i++) {
                  pring = &psli->ring[i];

                  spin_lock_irq(phba->host->host_lock);
                  list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
                                    list) {
                        /*
                         * Check to see if iocb matches the nport we are
                         * looking for
                         */
                        if ((lpfc_check_sli_ndlp
                             (phba, pring, iocb, ndlp))) {
                              /* It matches, so deque and call compl
                                 with an error */
                              list_del(&iocb->list);
                              pring->txq_cnt--;
                              if (iocb->iocb_cmpl) {
                                    icmd = &iocb->iocb;
                                    icmd->ulpStatus =
                                        IOSTAT_LOCAL_REJECT;
                                    icmd->un.ulpWord[4] =
                                        IOERR_SLI_ABORTED;
                                    spin_unlock_irq(phba->host->
                                                host_lock);
                                    (iocb->iocb_cmpl) (phba,
                                                   iocb, iocb);
                                    spin_lock_irq(phba->host->
                                                host_lock);
                              } else
                                    lpfc_sli_release_iocbq(phba,
                                                       iocb);
                        }
                  }
                  spin_unlock_irq(phba->host->host_lock);

            }
      }
      return 0;
}

/*
 * Free rpi associated with LPFC_NODELIST entry.
 * This routine is called from lpfc_freenode(), when we are removing
 * a LPFC_NODELIST entry. It is also called if the driver initiates a
 * LOGO that completes successfully, and we are waiting to PLOGI back
 * to the remote NPort. In addition, it is called after we receive
 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
 * we are waiting to PLOGI back to the remote NPort.
 */
int
lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
{
      LPFC_MBOXQ_t *mbox;
      int rc;

      if (ndlp->nlp_rpi) {
            if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
                  lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
                  mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
                  rc = lpfc_sli_issue_mbox
                            (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
                  if (rc == MBX_NOT_FINISHED)
                        mempool_free( mbox, phba->mbox_mem_pool);
            }
            lpfc_no_rpi(phba, ndlp);
            ndlp->nlp_rpi = 0;
            return 1;
      }
      return 0;
}

/*
 * Free resources associated with LPFC_NODELIST entry
 * so it can be freed.
 */
static int
lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
{
      LPFC_MBOXQ_t       *mb;
      LPFC_MBOXQ_t       *nextmb;
      struct lpfc_dmabuf *mp;

      /* Cleanup node for NPort <nlp_DID> */
      lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                  "%d:0900 Cleanup node for NPort x%x "
                  "Data: x%x x%x x%x\n",
                  phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
                  ndlp->nlp_state, ndlp->nlp_rpi);

      lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);

      /*
       * if unloading the driver - just leave the remote port in place.
       * The driver unload will force the attached devices to detach
       * and flush cache's w/o generating flush errors.
       */
      if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
            lpfc_unregister_remote_port(phba, ndlp);
            ndlp->nlp_sid = NLP_NO_SID;
      }

      /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
      if ((mb = phba->sli.mbox_active)) {
            if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
               (ndlp == (struct lpfc_nodelist *) mb->context2)) {
                  mb->context2 = NULL;
                  mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
            }
      }

      spin_lock_irq(phba->host->host_lock);
      list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
            if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
               (ndlp == (struct lpfc_nodelist *) mb->context2)) {
                  mp = (struct lpfc_dmabuf *) (mb->context1);
                  if (mp) {
                        lpfc_mbuf_free(phba, mp->virt, mp->phys);
                        kfree(mp);
                  }
                  list_del(&mb->list);
                  mempool_free(mb, phba->mbox_mem_pool);
            }
      }
      spin_unlock_irq(phba->host->host_lock);

      lpfc_els_abort(phba,ndlp,0);
      spin_lock_irq(phba->host->host_lock);
      ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
      spin_unlock_irq(phba->host->host_lock);
      del_timer_sync(&ndlp->nlp_tmofunc);

      ndlp->nlp_last_elscmd = 0;
      del_timer_sync(&ndlp->nlp_delayfunc);

      if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
            list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
      if (!list_empty(&ndlp->els_retry_evt.evt_listp))
            list_del_init(&ndlp->els_retry_evt.evt_listp);

      lpfc_unreg_rpi(phba, ndlp);

      return 0;
}

/*
 * Check to see if we can free the nlp back to the freelist.
 * If we are in the middle of using the nlp in the discovery state
 * machine, defer the free till we reach the end of the state machine.
 */
int
lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
{
      if (ndlp->nlp_flag & NLP_NODEV_TMO) {
            spin_lock_irq(phba->host->host_lock);
            ndlp->nlp_flag &= ~NLP_NODEV_TMO;
            spin_unlock_irq(phba->host->host_lock);
            del_timer_sync(&ndlp->nlp_tmofunc);
            if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
                  list_del_init(&ndlp->nodev_timeout_evt.evt_listp);

      }


      if (ndlp->nlp_flag & NLP_DELAY_TMO) {
            lpfc_cancel_retry_delay_tmo(phba, ndlp);
      }

      if (ndlp->nlp_disc_refcnt) {
            spin_lock_irq(phba->host->host_lock);
            ndlp->nlp_flag |= NLP_DELAY_REMOVE;
            spin_unlock_irq(phba->host->host_lock);
      } else {
            lpfc_freenode(phba, ndlp);
            mempool_free( ndlp, phba->nlp_mem_pool);
      }
      return 0;
}

static int
lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
{
      D_ID mydid;
      D_ID ndlpdid;
      D_ID matchdid;

      if (did == Bcast_DID)
            return 0;

      if (ndlp->nlp_DID == 0) {
            return 0;
      }

      /* First check for Direct match */
      if (ndlp->nlp_DID == did)
            return 1;

      /* Next check for area/domain identically equals 0 match */
      mydid.un.word = phba->fc_myDID;
      if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
            return 0;
      }

      matchdid.un.word = did;
      ndlpdid.un.word = ndlp->nlp_DID;
      if (matchdid.un.b.id == ndlpdid.un.b.id) {
            if ((mydid.un.b.domain == matchdid.un.b.domain) &&
                (mydid.un.b.area == matchdid.un.b.area)) {
                  if ((ndlpdid.un.b.domain == 0) &&
                      (ndlpdid.un.b.area == 0)) {
                        if (ndlpdid.un.b.id)
                              return 1;
                  }
                  return 0;
            }

            matchdid.un.word = ndlp->nlp_DID;
            if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
                (mydid.un.b.area == ndlpdid.un.b.area)) {
                  if ((matchdid.un.b.domain == 0) &&
                      (matchdid.un.b.area == 0)) {
                        if (matchdid.un.b.id)
                              return 1;
                  }
            }
      }
      return 0;
}

/* Search for a nodelist entry on a specific list */
struct lpfc_nodelist *
lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
{
      struct lpfc_nodelist *ndlp, *next_ndlp;
      uint32_t data1;

      spin_lock_irq(phba->host->host_lock);
      if (order & NLP_SEARCH_UNMAPPED) {
            list_for_each_entry_safe(ndlp, next_ndlp,
                               &phba->fc_nlpunmap_list, nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {
                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* FIND node DID unmapped */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0929 FIND node DID unmapped"
                                    " Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_MAPPED) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
                              nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* FIND node DID mapped */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0930 FIND node DID mapped "
                                    "Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_PLOGI) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
                              nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* LOG change to PLOGI */
                        /* FIND node DID plogi */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0908 FIND node DID plogi "
                                    "Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_ADISC) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
                              nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* LOG change to ADISC */
                        /* FIND node DID adisc */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0931 FIND node DID adisc "
                                    "Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_REGLOGIN) {
            list_for_each_entry_safe(ndlp, next_ndlp,
                               &phba->fc_reglogin_list, nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* LOG change to REGLOGIN */
                        /* FIND node DID reglogin */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0901 FIND node DID reglogin"
                                    " Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_PRLI) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
                              nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* LOG change to PRLI */
                        /* FIND node DID prli */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0902 FIND node DID prli "
                                    "Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_NPR) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
                              nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* LOG change to NPR */
                        /* FIND node DID npr */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0903 FIND node DID npr "
                                    "Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      if (order & NLP_SEARCH_UNUSED) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
                              nlp_listp) {
                  if (lpfc_matchdid(phba, ndlp, did)) {

                        data1 = (((uint32_t) ndlp->nlp_state << 24) |
                               ((uint32_t) ndlp->nlp_xri << 16) |
                               ((uint32_t) ndlp->nlp_type << 8) |
                               ((uint32_t) ndlp->nlp_rpi & 0xff));
                        /* LOG change to UNUSED */
                        /* FIND node DID unused */
                        lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
                                    "%d:0905 FIND node DID unused "
                                    "Data: x%p x%x x%x x%x\n",
                                    phba->brd_no,
                                    ndlp, ndlp->nlp_DID,
                                    ndlp->nlp_flag, data1);
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }

      spin_unlock_irq(phba->host->host_lock);

      /* FIND node did <did> NOT FOUND */
      lpfc_printf_log(phba,
                  KERN_INFO,
                  LOG_NODE,
                  "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
                  phba->brd_no, did, order);

      /* no match found */
      return NULL;
}

struct lpfc_nodelist *
lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
{
      struct lpfc_nodelist *ndlp;
      uint32_t flg;

      ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
      if (!ndlp) {
            if ((phba->fc_flag & FC_RSCN_MODE) &&
               ((lpfc_rscn_payload_check(phba, did) == 0)))
                  return NULL;
            ndlp = (struct lpfc_nodelist *)
                 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
            if (!ndlp)
                  return NULL;
            lpfc_nlp_init(phba, ndlp, did);
            ndlp->nlp_state = NLP_STE_NPR_NODE;
            lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
            ndlp->nlp_flag |= NLP_NPR_2B_DISC;
            return ndlp;
      }
      if (phba->fc_flag & FC_RSCN_MODE) {
            if (lpfc_rscn_payload_check(phba, did)) {
                  ndlp->nlp_flag |= NLP_NPR_2B_DISC;

                  /* Since this node is marked for discovery,
                   * delay timeout is not needed.
                   */
                  if (ndlp->nlp_flag & NLP_DELAY_TMO)
                        lpfc_cancel_retry_delay_tmo(phba, ndlp);
            } else
                  ndlp = NULL;
      } else {
            flg = ndlp->nlp_flag & NLP_LIST_MASK;
            if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
                  return NULL;
            ndlp->nlp_state = NLP_STE_NPR_NODE;
            lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
            ndlp->nlp_flag |= NLP_NPR_2B_DISC;
      }
      return ndlp;
}

/* Build a list of nodes to discover based on the loopmap */
void
lpfc_disc_list_loopmap(struct lpfc_hba * phba)
{
      int j;
      uint32_t alpa, index;

      if (phba->hba_state <= LPFC_LINK_DOWN) {
            return;
      }
      if (phba->fc_topology != TOPOLOGY_LOOP) {
            return;
      }

      /* Check for loop map present or not */
      if (phba->alpa_map[0]) {
            for (j = 1; j <= phba->alpa_map[0]; j++) {
                  alpa = phba->alpa_map[j];

                  if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
                        continue;
                  }
                  lpfc_setup_disc_node(phba, alpa);
            }
      } else {
            /* No alpamap, so try all alpa's */
            for (j = 0; j < FC_MAXLOOP; j++) {
                  /* If cfg_scan_down is set, start from highest
                   * ALPA (0xef) to lowest (0x1).
                   */
                  if (phba->cfg_scan_down)
                        index = j;
                  else
                        index = FC_MAXLOOP - j - 1;
                  alpa = lpfcAlpaArray[index];
                  if ((phba->fc_myDID & 0xff) == alpa) {
                        continue;
                  }

                  lpfc_setup_disc_node(phba, alpa);
            }
      }
      return;
}

/* Start Link up / RSCN discovery on NPR list */
void
lpfc_disc_start(struct lpfc_hba * phba)
{
      struct lpfc_sli *psli;
      LPFC_MBOXQ_t *mbox;
      struct lpfc_nodelist *ndlp, *next_ndlp;
      uint32_t did_changed, num_sent;
      uint32_t clear_la_pending;
      int rc;

      psli = &phba->sli;

      if (phba->hba_state <= LPFC_LINK_DOWN) {
            return;
      }
      if (phba->hba_state == LPFC_CLEAR_LA)
            clear_la_pending = 1;
      else
            clear_la_pending = 0;

      if (phba->hba_state < LPFC_HBA_READY) {
            phba->hba_state = LPFC_DISC_AUTH;
      }
      lpfc_set_disctmo(phba);

      if (phba->fc_prevDID == phba->fc_myDID) {
            did_changed = 0;
      } else {
            did_changed = 1;
      }
      phba->fc_prevDID = phba->fc_myDID;
      phba->num_disc_nodes = 0;

      /* Start Discovery state <hba_state> */
      lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
                  "%d:0202 Start Discovery hba state x%x "
                  "Data: x%x x%x x%x\n",
                  phba->brd_no, phba->hba_state, phba->fc_flag,
                  phba->fc_plogi_cnt, phba->fc_adisc_cnt);

      /* If our did changed, we MUST do PLOGI */
      list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
                        nlp_listp) {
            if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
                  if (did_changed) {
                        spin_lock_irq(phba->host->host_lock);
                        ndlp->nlp_flag &= ~NLP_NPR_ADISC;
                        spin_unlock_irq(phba->host->host_lock);
                  }
            }
      }

      /* First do ADISCs - if any */
      num_sent = lpfc_els_disc_adisc(phba);

      if (num_sent)
            return;

      if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
            /* If we get here, there is nothing to ADISC */
            if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
                  phba->hba_state = LPFC_CLEAR_LA;
                  lpfc_clear_la(phba, mbox);
                  mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
                  rc = lpfc_sli_issue_mbox(phba, mbox,
                                     (MBX_NOWAIT | MBX_STOP_IOCB));
                  if (rc == MBX_NOT_FINISHED) {
                        mempool_free( mbox, phba->mbox_mem_pool);
                        lpfc_disc_flush_list(phba);
                        psli->ring[(psli->ip_ring)].flag &=
                              ~LPFC_STOP_IOCB_EVENT;
                        psli->ring[(psli->fcp_ring)].flag &=
                              ~LPFC_STOP_IOCB_EVENT;
                        psli->ring[(psli->next_ring)].flag &=
                              ~LPFC_STOP_IOCB_EVENT;
                        phba->hba_state = LPFC_HBA_READY;
                  }
            }
      } else {
            /* Next do PLOGIs - if any */
            num_sent = lpfc_els_disc_plogi(phba);

            if (num_sent)
                  return;

            if (phba->fc_flag & FC_RSCN_MODE) {
                  /* Check to see if more RSCNs came in while we
                   * were processing this one.
                   */
                  if ((phba->fc_rscn_id_cnt == 0) &&
                      (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
                        spin_lock_irq(phba->host->host_lock);
                        phba->fc_flag &= ~FC_RSCN_MODE;
                        spin_unlock_irq(phba->host->host_lock);
                  } else
                        lpfc_els_handle_rscn(phba);
            }
      }
      return;
}

/*
 *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
 *  ring the match the sppecified nodelist.
 */
static void
lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
{
      struct lpfc_sli *psli;
      IOCB_t     *icmd;
      struct lpfc_iocbq    *iocb, *next_iocb;
      struct lpfc_sli_ring *pring;
      struct lpfc_dmabuf   *mp;

      psli = &phba->sli;
      pring = &psli->ring[LPFC_ELS_RING];

      /* Error matching iocb on txq or txcmplq
       * First check the txq.
       */
      list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
            if (iocb->context1 != ndlp) {
                  continue;
            }
            icmd = &iocb->iocb;
            if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
                (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {

                  list_del(&iocb->list);
                  pring->txq_cnt--;
                  lpfc_els_free_iocb(phba, iocb);
            }
      }

      /* Next check the txcmplq */
      list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
            if (iocb->context1 != ndlp) {
                  continue;
            }
            icmd = &iocb->iocb;
            if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
                (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {

                  iocb->iocb_cmpl = NULL;
                  /* context2 = cmd, context2->next = rsp, context3 =
                     bpl */
                  if (iocb->context2) {
                        /* Free the response IOCB before handling the
                           command. */

                        mp = (struct lpfc_dmabuf *) (iocb->context2);
                        mp = list_get_first(&mp->list,
                                        struct lpfc_dmabuf,
                                        list);
                        if (mp) {
                              /* Delay before releasing rsp buffer to
                               * give UNREG mbox a chance to take
                               * effect.
                               */
                              list_add(&mp->list,
                                    &phba->freebufList);
                        }
                        lpfc_mbuf_free(phba,
                                     ((struct lpfc_dmabuf *)
                                    iocb->context2)->virt,
                                     ((struct lpfc_dmabuf *)
                                    iocb->context2)->phys);
                        kfree(iocb->context2);
                  }

                  if (iocb->context3) {
                        lpfc_mbuf_free(phba,
                                     ((struct lpfc_dmabuf *)
                                    iocb->context3)->virt,
                                     ((struct lpfc_dmabuf *)
                                    iocb->context3)->phys);
                        kfree(iocb->context3);
                  }
            }
      }

      return;
}

void
lpfc_disc_flush_list(struct lpfc_hba * phba)
{
      struct lpfc_nodelist *ndlp, *next_ndlp;

      if (phba->fc_plogi_cnt) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
                              nlp_listp) {
                  lpfc_free_tx(phba, ndlp);
                  lpfc_nlp_remove(phba, ndlp);
            }
      }
      if (phba->fc_adisc_cnt) {
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
                              nlp_listp) {
                  lpfc_free_tx(phba, ndlp);
                  lpfc_nlp_remove(phba, ndlp);
            }
      }
      return;
}

/*****************************************************************************/
/*
 * NAME:     lpfc_disc_timeout
 *
 * FUNCTION: Fibre Channel driver discovery timeout routine.
 *
 * EXECUTION ENVIRONMENT: interrupt only
 *
 * CALLED FROM:
 *      Timer function
 *
 * RETURNS:
 *      none
 */
/*****************************************************************************/
void
lpfc_disc_timeout(unsigned long ptr)
{
      struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
      unsigned long flags = 0;

      if (unlikely(!phba))
            return;

      spin_lock_irqsave(phba->host->host_lock, flags);
      if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
            phba->work_hba_events |= WORKER_DISC_TMO;
            if (phba->work_wait)
                  wake_up(phba->work_wait);
      }
      spin_unlock_irqrestore(phba->host->host_lock, flags);
      return;
}

static void
lpfc_disc_timeout_handler(struct lpfc_hba *phba)
{
      struct lpfc_sli *psli;
      struct lpfc_nodelist *ndlp, *next_ndlp;
      LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
      int rc, clrlaerr = 0;

      if (unlikely(!phba))
            return;

      if (!(phba->fc_flag & FC_DISC_TMO))
            return;

      psli = &phba->sli;

      spin_lock_irq(phba->host->host_lock);
      phba->fc_flag &= ~FC_DISC_TMO;
      spin_unlock_irq(phba->host->host_lock);

      switch (phba->hba_state) {

      case LPFC_LOCAL_CFG_LINK:
      /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
            /* FAN timeout */
            lpfc_printf_log(phba,
                         KERN_WARNING,
                         LOG_DISCOVERY,
                         "%d:0221 FAN timeout\n",
                         phba->brd_no);

            /* Start discovery by sending FLOGI, clean up old rpis */
            list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
                              nlp_listp) {
                  if (ndlp->nlp_type & NLP_FABRIC) {
                        /* Clean up the ndlp on Fabric connections */
                        lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
                  } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
                        /* Fail outstanding IO now since device
                         * is marked for PLOGI.
                         */
                        lpfc_unreg_rpi(phba, ndlp);
                  }
            }
            phba->hba_state = LPFC_FLOGI;
            lpfc_set_disctmo(phba);
            lpfc_initial_flogi(phba);
            break;

      case LPFC_FLOGI:
      /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
            /* Initial FLOGI timeout */
            lpfc_printf_log(phba,
                         KERN_ERR,
                         LOG_DISCOVERY,
                         "%d:0222 Initial FLOGI timeout\n",
                         phba->brd_no);

            /* Assume no Fabric and go on with discovery.
             * Check for outstanding ELS FLOGI to abort.
             */

            /* FLOGI failed, so just use loop map to make discovery list */
            lpfc_disc_list_loopmap(phba);

            /* Start discovery */
            lpfc_disc_start(phba);
            break;

      case LPFC_FABRIC_CFG_LINK:
      /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
         NameServer login */
            lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                        "%d:0223 Timeout while waiting for NameServer "
                        "login\n", phba->brd_no);

            /* Next look for NameServer ndlp */
            ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
            if (ndlp)
                  lpfc_nlp_remove(phba, ndlp);
            /* Start discovery */
            lpfc_disc_start(phba);
            break;

      case LPFC_NS_QRY:
      /* Check for wait for NameServer Rsp timeout */
            lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                        "%d:0224 NameServer Query timeout "
                        "Data: x%x x%x\n",
                        phba->brd_no,
                        phba->fc_ns_retry, LPFC_MAX_NS_RETRY);

            ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
                                                NameServer_DID);
            if (ndlp) {
                  if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                        /* Try it one more time */
                        rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
                        if (rc == 0)
                              break;
                  }
                  phba->fc_ns_retry = 0;
            }

            /* Nothing to authenticate, so CLEAR_LA right now */
            clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
            if (!clearlambox) {
                  clrlaerr = 1;
                  lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                              "%d:0226 Device Discovery "
                              "completion error\n",
                              phba->brd_no);
                  phba->hba_state = LPFC_HBA_ERROR;
                  break;
            }

            phba->hba_state = LPFC_CLEAR_LA;
            lpfc_clear_la(phba, clearlambox);
            clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
            rc = lpfc_sli_issue_mbox(phba, clearlambox,
                               (MBX_NOWAIT | MBX_STOP_IOCB));
            if (rc == MBX_NOT_FINISHED) {
                  mempool_free(clearlambox, phba->mbox_mem_pool);
                  clrlaerr = 1;
                  break;
            }

            /* Setup and issue mailbox INITIALIZE LINK command */
            initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
            if (!initlinkmbox) {
                  lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                              "%d:0206 Device Discovery "
                              "completion error\n",
                              phba->brd_no);
                  phba->hba_state = LPFC_HBA_ERROR;
                  break;
            }

            lpfc_linkdown(phba);
            lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
                         phba->cfg_link_speed);
            initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
            rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
                               (MBX_NOWAIT | MBX_STOP_IOCB));
            if (rc == MBX_NOT_FINISHED)
                  mempool_free(initlinkmbox, phba->mbox_mem_pool);

            break;

      case LPFC_DISC_AUTH:
      /* Node Authentication timeout */
            lpfc_printf_log(phba,
                         KERN_ERR,
                         LOG_DISCOVERY,
                         "%d:0227 Node Authentication timeout\n",
                         phba->brd_no);
            lpfc_disc_flush_list(phba);
            clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
            if (!clearlambox) {
                  clrlaerr = 1;
                  lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
                              "%d:0207 Device Discovery "
                              "completion error\n",
                              phba->brd_no);
                  phba->hba_state = LPFC_HBA_ERROR;
                  break;
            }
            phba->hba_state = LPFC_CLEAR_LA;
            lpfc_clear_la(phba, clearlambox);
            clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
            rc = lpfc_sli_issue_mbox(phba, clearlambox,
                               (MBX_NOWAIT | MBX_STOP_IOCB));
            if (rc == MBX_NOT_FINISHED) {
                  mempool_free(clearlambox, phba->mbox_mem_pool);
                  clrlaerr = 1;
            }
            break;

      case LPFC_CLEAR_LA:
      /* CLEAR LA timeout */
            lpfc_printf_log(phba,
                         KERN_ERR,
                         LOG_DISCOVERY,
                         "%d:0228 CLEAR LA timeout\n",
                         phba->brd_no);
            clrlaerr = 1;
            break;

      case LPFC_HBA_READY:
            if (phba->fc_flag & FC_RSCN_MODE) {
                  lpfc_printf_log(phba,
                              KERN_ERR,
                              LOG_DISCOVERY,
                              "%d:0231 RSCN timeout Data: x%x x%x\n",
                              phba->brd_no,
                              phba->fc_ns_retry, LPFC_MAX_NS_RETRY);

                  /* Cleanup any outstanding ELS commands */
                  lpfc_els_flush_cmd(phba);

                  lpfc_els_flush_rscn(phba);
                  lpfc_disc_flush_list(phba);
            }
            break;
      }

      if (clrlaerr) {
            lpfc_disc_flush_list(phba);
            psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
            psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
            psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
            phba->hba_state = LPFC_HBA_READY;
      }

      return;
}

static void
lpfc_nodev_timeout(unsigned long ptr)
{
      struct lpfc_hba *phba;
      struct lpfc_nodelist *ndlp;
      unsigned long iflag;
      struct lpfc_work_evt  *evtp;

      ndlp = (struct lpfc_nodelist *)ptr;
      phba = ndlp->nlp_phba;
      evtp = &ndlp->nodev_timeout_evt;
      spin_lock_irqsave(phba->host->host_lock, iflag);

      if (!list_empty(&evtp->evt_listp)) {
            spin_unlock_irqrestore(phba->host->host_lock, iflag);
            return;
      }
      evtp->evt_arg1  = ndlp;
      evtp->evt       = LPFC_EVT_NODEV_TMO;
      list_add_tail(&evtp->evt_listp, &phba->work_list);
      if (phba->work_wait)
            wake_up(phba->work_wait);

      spin_unlock_irqrestore(phba->host->host_lock, iflag);
      return;
}


/*
 * This routine handles processing a NameServer REG_LOGIN mailbox
 * command upon completion. It is setup in the LPFC_MBOXQ
 * as the completion routine when the command is
 * handed off to the SLI layer.
 */
void
lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
      struct lpfc_sli *psli;
      MAILBOX_t *mb;
      struct lpfc_dmabuf *mp;
      struct lpfc_nodelist *ndlp;

      psli = &phba->sli;
      mb = &pmb->mb;

      ndlp = (struct lpfc_nodelist *) pmb->context2;
      mp = (struct lpfc_dmabuf *) (pmb->context1);

      pmb->context1 = NULL;

      ndlp->nlp_rpi = mb->un.varWords[0];
      ndlp->nlp_type |= NLP_FABRIC;
      ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
      lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);

      /* Start issuing Fabric-Device Management Interface (FDMI)
       * command to 0xfffffa (FDMI well known port)
       */
      if (phba->cfg_fdmi_on == 1) {
            lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
      } else {
            /*
             * Delay issuing FDMI command if fdmi-on=2
             * (supporting RPA/hostnmae)
             */
            mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
      }

      lpfc_mbuf_free(phba, mp->virt, mp->phys);
      kfree(mp);
      mempool_free( pmb, phba->mbox_mem_pool);

      return;
}

/*
 * This routine looks up the ndlp  lists
 * for the given RPI. If rpi found
 * it return the node list pointer
 * else return NULL.
 */
struct lpfc_nodelist *
lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
{
      struct lpfc_nodelist *ndlp;
      struct list_head * lists[]={&phba->fc_nlpunmap_list,
                            &phba->fc_nlpmap_list,
                            &phba->fc_plogi_list,
                            &phba->fc_adisc_list,
                            &phba->fc_reglogin_list};
      int i;

      spin_lock_irq(phba->host->host_lock);
      for (i = 0; i < ARRAY_SIZE(lists); i++ )
            list_for_each_entry(ndlp, lists[i], nlp_listp)
                  if (ndlp->nlp_rpi == rpi) {
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
      spin_unlock_irq(phba->host->host_lock);
      return NULL;
}

/*
 * This routine looks up the ndlp  lists
 * for the given WWPN. If WWPN found
 * it return the node list pointer
 * else return NULL.
 */
struct lpfc_nodelist *
lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
               struct lpfc_name * wwpn)
{
      struct lpfc_nodelist *ndlp;
      struct list_head * lists[]={&phba->fc_nlpunmap_list,
                            &phba->fc_nlpmap_list,
                            &phba->fc_npr_list,
                            &phba->fc_plogi_list,
                            &phba->fc_adisc_list,
                            &phba->fc_reglogin_list,
                            &phba->fc_prli_list};
      uint32_t search[]={NLP_SEARCH_UNMAPPED,
                     NLP_SEARCH_MAPPED,
                     NLP_SEARCH_NPR,
                     NLP_SEARCH_PLOGI,
                     NLP_SEARCH_ADISC,
                     NLP_SEARCH_REGLOGIN,
                     NLP_SEARCH_PRLI};
      int i;

      spin_lock_irq(phba->host->host_lock);
      for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
            if (!(order & search[i]))
                  continue;
            list_for_each_entry(ndlp, lists[i], nlp_listp) {
                  if (memcmp(&ndlp->nlp_portname, wwpn,
                           sizeof(struct lpfc_name)) == 0) {
                        spin_unlock_irq(phba->host->host_lock);
                        return ndlp;
                  }
            }
      }
      spin_unlock_irq(phba->host->host_lock);
      return NULL;
}

void
lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
             uint32_t did)
{
      memset(ndlp, 0, sizeof (struct lpfc_nodelist));
      INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
      INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
      init_timer(&ndlp->nlp_tmofunc);
      ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
      ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
      init_timer(&ndlp->nlp_delayfunc);
      ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
      ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
      ndlp->nlp_DID = did;
      ndlp->nlp_phba = phba;
      ndlp->nlp_sid = NLP_NO_SID;
      return;
}

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