lpfc_hbadisc.c 66.9 KB
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/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
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 * Fibre Channel Host Bus Adapters.                                *
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 * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
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 * EMULEX and SLI are trademarks of Emulex.                        *
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 * www.emulex.com                                                  *
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 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
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 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
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 * 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.                                     *
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 *******************************************************************/

#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>

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#include <scsi/scsi.h>
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#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)
{
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	int warn_on = 0;
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	spin_lock_irq(phba->host->host_lock);
	if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
		spin_unlock_irq(phba->host->host_lock);
		return;
	}

	ndlp->nlp_flag &= ~NLP_NODEV_TMO;

	if (ndlp->nlp_sid != NLP_NO_SID) {
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		warn_on = 1;
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		/* 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);

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	if (warn_on) {
		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
				"%d:0203 Nodev timeout on 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);
	} else {
		lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
				"%d:0204 Nodev timeout on 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);
	}

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	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;
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		switch (evtp->evt) {
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		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:
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			if (phba->hba_state < LPFC_LINK_DOWN)
				*(int *)(evtp->evt_arg1)  = lpfc_online(phba);
			else
				*(int *)(evtp->evt_arg1)  = 0;
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			complete((struct completion *)(evtp->evt_arg2));
			break;
		case LPFC_EVT_OFFLINE:
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			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_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)  = lpfc_sli_brdkill(phba);
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			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);

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	if (ha_copy & HA_ERATT)
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		lpfc_handle_eratt(phba);

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	if (ha_copy & HA_MBATT)
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		lpfc_sli_handle_mb_event(phba);

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	if (ha_copy & HA_LATT)
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		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;

	list_add_tail(&evtp->evt_listp, &phba->work_list);
	spin_lock_irq(phba->host->host_lock);
	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;
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	struct list_head *listp, *node_list[7];
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	LPFC_MBOXQ_t     *mb;
	int               rc, i;

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

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		spin_lock_irq(phba->host->host_lock);
		phba->hba_state = LPFC_LINK_DOWN;
		spin_unlock_irq(phba->host->host_lock);
	}
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	/* 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) {
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			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) &&
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				!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
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				/* 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);
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			}
		}
	}

	/* 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 */
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	return 0;
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}

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


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	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);
				}
			}
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		}
	}

	/* 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);
	}

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	if (!phba->num_disc_nodes) {
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		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_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
	struct lpfc_sli *psli;
	MAILBOX_t *mb;

	psli = &phba->sli;
	mb = &pmb->mb;
	/* Check for error */
	if (mb->mbxStatus) {
		/* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
				"%d:0306 CONFIG_LINK 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;
	}

	if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
		if (phba->fc_topology == TOPOLOGY_LOOP) {
			/* If we are public loop and L bit was set */
			if ((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);
				mempool_free( pmb, phba->mbox_mem_pool);
				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);
		mempool_free( pmb, phba->mbox_mem_pool);
		return;
	}
	if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
		mempool_free( pmb, phba->mbox_mem_pool);
		return;
	}

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

	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_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);
687
	switch (la->UlnkSpeed) {
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		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_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);

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	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);

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	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);

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		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, ndlp, 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, ndlp_fdmi, 0);
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			}
		}
	}

	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 */
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Andrew Morton committed
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	rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
	rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
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	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;
	if ((rport->scsi_target_id != -1) &&
		(rport->scsi_target_id < MAX_FCP_TARGET)) {
		ndlp->nlp_sid = rport->scsi_target_id;
	}
	rdata = rport->dd_data;
	rdata->pnode = ndlp;
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	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);

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	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);
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	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 */
1117
	if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1118
		if (list != NLP_NO_LIST)
1119
			return 0;
1120

1121
	switch (nlp->nlp_flag & NLP_LIST_MASK) {
1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170
	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);
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
		nlp->nlp_type &= ~NLP_FC_NODE;
		spin_unlock_irq(phba->host->host_lock);
		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_lock_irq(phba->host->host_lock);
			nlp->nlp_flag &= ~NLP_DELAY_TMO;
			spin_unlock_irq(phba->host->host_lock);
1171
			nlp->nlp_last_elscmd = 0;
1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
			del_timer_sync(&nlp->nlp_delayfunc);
			if (!list_empty(&nlp->els_retry_evt.evt_listp))
				list_del_init(&nlp->els_retry_evt.evt_listp);
		}
		break;
	}

	spin_lock_irq(phba->host->host_lock);
	nlp->nlp_flag &= ~NLP_LIST_MASK;
	spin_unlock_irq(phba->host->host_lock);

	/* 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);

1191
	switch (list) {
1192 1193
	case NLP_NO_LIST: /* No list, just remove it */
		lpfc_nlp_remove(phba, nlp);
1194 1195
		/* as node removed - stop further transport calls */
		rport_del = none;
1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287
		break;
	case NLP_UNUSED_LIST:
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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:
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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:
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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:
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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:
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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);
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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) {
			spin_lock_irq(phba->host->host_lock);
			nlp->nlp_flag &= ~NLP_NODEV_TMO;
			spin_unlock_irq(phba->host->host_lock);
			del_timer_sync(&nlp->nlp_tmofunc);
			if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
				list_del_init(&nlp->nodev_timeout_evt.
						evt_listp);

		}
		nlp->nlp_type |= NLP_FC_NODE;
		break;
	case NLP_MAPPED_LIST:
		rport_add = mapped;
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= list;
		spin_unlock_irq(phba->host->host_lock);
		/* 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;
			del_timer_sync(&nlp->nlp_tmofunc);
			if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
				list_del_init(&nlp->nodev_timeout_evt.
						evt_listp);

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

1288
		if (!(nlp->nlp_flag & NLP_NODEV_TMO))
1289
			mod_timer(&nlp->nlp_tmofunc,
1290
		 			jiffies + HZ * phba->cfg_nodev_tmo);
1291

1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313
		spin_lock_irq(phba->host->host_lock);
		nlp->nlp_flag |= NLP_NODEV_TMO;
		nlp->nlp_flag &= ~NLP_RCV_PLOGI;
		spin_unlock_irq(phba->host->host_lock);
		break;
	case NLP_JUST_DQ:
		break;
	}

	/*
	 * 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)
1314
			lpfc_unregister_remote_port(phba, nlp);
1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342

		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 >= MAX_FCP_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);
			}
		}
	}
1343
	return 0;
1344 1345 1346 1347 1348 1349 1350 1351 1352 1353
}

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

1354 1355 1356 1357 1358 1359 1360 1361 1362
	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);
	}
1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401

	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);

1402
	return 0;
1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422
}

/*
 * 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)
1423
				return 1;
1424 1425 1426
		case CMD_ELS_REQUEST64_CR:
		case CMD_XMIT_ELS_RSP64_CX:
			if (iocb->context1 == (uint8_t *) ndlp)
1427
				return 1;
1428 1429 1430 1431 1432 1433 1434
		}
	} 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)) {
1435
			return 0;
1436 1437
		}
		if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1438
			return 1;
1439 1440 1441 1442
		}
	} else if (pring->ringno == psli->next_ring) {

	}
1443
	return 0;
1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494
}

/*
 * 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);
1495 1496 1497
					} else
						lpfc_sli_release_iocbq(phba,
								       iocb);
1498 1499 1500 1501 1502 1503
				}
			}
			spin_unlock_irq(phba->host->host_lock);

		}
	}
1504
	return 0;
1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563
}

/*
 * 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)) {
1564
		lpfc_unregister_remote_port(phba, ndlp);
1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594
		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;
		}
	}
	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);
		}
	}

	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);

1595
	ndlp->nlp_last_elscmd = 0;
1596 1597 1598 1599 1600 1601 1602 1603 1604
	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);

1605
	return 0;
1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630
}

/*
 * 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) {
		spin_lock_irq(phba->host->host_lock);
		ndlp->nlp_flag &= ~NLP_DELAY_TMO;
		spin_unlock_irq(phba->host->host_lock);
1631
		ndlp->nlp_last_elscmd = 0;
1632 1633 1634 1635 1636 1637 1638 1639 1640
		del_timer_sync(&ndlp->nlp_delayfunc);
		if (!list_empty(&ndlp->els_retry_evt.evt_listp))
			list_del_init(&ndlp->els_retry_evt.evt_listp);
	}

	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);
1641
	} else {
1642 1643 1644
		lpfc_freenode(phba, ndlp);
		mempool_free( ndlp, phba->nlp_mem_pool);
	}
1645
	return 0;
1646 1647 1648 1649 1650 1651 1652 1653 1654 1655
}

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)
1656
		return 0;
1657 1658

	if (ndlp->nlp_DID == 0) {
1659
		return 0;
1660 1661 1662 1663
	}

	/* First check for Direct match */
	if (ndlp->nlp_DID == did)
1664
		return 1;
1665 1666 1667 1668

	/* 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)) {
1669
		return 0;
1670 1671 1672 1673 1674 1675 1676 1677 1678 1679
	}

	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)
1680
					return 1;
1681
			}
1682
			return 0;
1683 1684 1685 1686 1687 1688 1689 1690
		}

		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)
1691
					return 1;
1692 1693 1694
			}
		}
	}
1695
	return 0;
1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719
}

/* 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;

	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);
1720
				return ndlp;
1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740
			}
		}
	}

	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);
1741
				return ndlp;
1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762
			}
		}
	}

	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);
1763
				return ndlp;
1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784
			}
		}
	}

	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);
1785
				return ndlp;
1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806
			}
		}
	}

	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:0931 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);
1807
				return ndlp;
1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828
			}
		}
	}

	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:0931 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);
1829
				return ndlp;
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850
			}
		}
	}

	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:0931 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);
1851
				return ndlp;
1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872
			}
		}
	}

	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:0931 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);
1873
				return ndlp;
1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894
			}
		}
	}

	/* 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;

1895 1896 1897
	ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
	if (!ndlp) {
		if ((phba->fc_flag & FC_RSCN_MODE) &&
1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909
		   ((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;
	}
1910
	if (phba->fc_flag & FC_RSCN_MODE) {
1911 1912
		if (lpfc_rscn_payload_check(phba, did)) {
			ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1913 1914 1915 1916 1917 1918 1919 1920 1921 1922

			/* Since this node is marked for discovery,
			 * delay timeout is not needed.
			 */
			if (ndlp->nlp_flag & NLP_DELAY_TMO) {
				ndlp->nlp_flag &= ~NLP_DELAY_TMO;
				spin_unlock_irq(phba->host->host_lock);
				del_timer_sync(&ndlp->nlp_delayfunc);
				spin_lock_irq(phba->host->host_lock);
				if (!list_empty(&ndlp->els_retry_evt.
1923
								evt_listp))
1924
					list_del_init(&ndlp->els_retry_evt.
1925
						      		evt_listp);
1926
			}
1927
		} else {
1928 1929 1930
			ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
			ndlp = NULL;
		}
1931
	} else {
1932
		flg = ndlp->nlp_flag & NLP_LIST_MASK;
1933
		if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081
			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);
2082
			} else
2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231
				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;
2232
	struct lpfc_nodelist *ndlp, *next_ndlp;
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	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);

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		/* 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);
2265
			} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
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				/* Fail outstanding IO now since device
				 * is marked for PLOGI.
				 */
				lpfc_unreg_rpi(phba, ndlp);
			}
		}
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		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:0226 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: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;

	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;
}

/*
2521 2522
 * This routine looks up the ndlp  lists
 * for the given RPI. If rpi found
2523
 * it return the node list pointer
2524
 * else return NULL.
2525 2526 2527 2528
 */
struct lpfc_nodelist *
lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
{
2529 2530 2531 2532 2533 2534 2535
	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;
2536

2537 2538 2539
	for (i = 0; i < ARRAY_SIZE(lists); i++ )
		list_for_each_entry(ndlp, lists[i], nlp_listp)
			if (ndlp->nlp_rpi == rpi)
2540
				return ndlp;
2541

2542
	return NULL;
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}

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;
}