lpfc: add Emulex FC driver version 8.0.28

From: 	James.Smart@Emulex.Com

Modified for kernel import and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 1842 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
new file mode 100644
index 00000000000..e7470a4738c
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -0,0 +1,1842 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for         *
+ * Enterprise Fibre Channel Host Bus Adapters.                     *
+ * Refer to the README file included with this package for         *
+ * driver version and adapter support.                             *
+ * Copyright (C) 2004 Emulex Corporation.                          *
+ * www.emulex.com                                                  *
+ *                                                                 *
+ * This program is free software; you can redistribute it and/or   *
+ * modify it under the terms of the GNU General Public License     *
+ * as published by the Free Software Foundation; either version 2  *
+ * of the License, or (at your option) any later version.          *
+ *                                                                 *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of  *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   *
+ * GNU General Public License for more details, a copy of which    *
+ * can be found in the file COPYING included with this package.    *
+ *******************************************************************/
+
+/*
+ * $Id: lpfc_nportdisc.c 1.179 2005/04/13 11:59:13EDT sf_support Exp  $
+ */
+
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
+
+#include "lpfc_hw.h"
+#include "lpfc_sli.h"
+#include "lpfc_disc.h"
+#include "lpfc_scsi.h"
+#include "lpfc.h"
+#include "lpfc_logmsg.h"
+#include "lpfc_crtn.h"
+
+
+/* Called to verify a rcv'ed ADISC was intended for us. */
+static int
+lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+		 struct lpfc_name * nn, struct lpfc_name * pn)
+{
+	/* Compare the ADISC rsp WWNN / WWPN matches our internal node
+	 * table entry for that node.
+	 */
+	if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)) != 0)
+		return (0);
+
+	if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0)
+		return (0);
+
+	/* we match, return success */
+	return (1);
+}
+
+
+int
+lpfc_check_sparm(struct lpfc_hba * phba,
+		 struct lpfc_nodelist * ndlp, struct serv_parm * sp,
+		 uint32_t class)
+{
+	volatile struct serv_parm *hsp = &phba->fc_sparam;
+	/* First check for supported version */
+
+	/* Next check for class validity */
+	if (sp->cls1.classValid) {
+
+		if (sp->cls1.rcvDataSizeMsb > hsp->cls1.rcvDataSizeMsb)
+			sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
+		if (sp->cls1.rcvDataSizeLsb > hsp->cls1.rcvDataSizeLsb)
+			sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
+	} else if (class == CLASS1) {
+		return (0);
+	}
+
+	if (sp->cls2.classValid) {
+
+		if (sp->cls2.rcvDataSizeMsb > hsp->cls2.rcvDataSizeMsb)
+			sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
+		if (sp->cls2.rcvDataSizeLsb > hsp->cls2.rcvDataSizeLsb)
+			sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
+	} else if (class == CLASS2) {
+		return (0);
+	}
+
+	if (sp->cls3.classValid) {
+
+		if (sp->cls3.rcvDataSizeMsb > hsp->cls3.rcvDataSizeMsb)
+			sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
+		if (sp->cls3.rcvDataSizeLsb > hsp->cls3.rcvDataSizeLsb)
+			sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
+	} else if (class == CLASS3) {
+		return (0);
+	}
+
+	if (sp->cmn.bbRcvSizeMsb > hsp->cmn.bbRcvSizeMsb)
+		sp->cmn.bbRcvSizeMsb = hsp->cmn.bbRcvSizeMsb;
+	if (sp->cmn.bbRcvSizeLsb > hsp->cmn.bbRcvSizeLsb)
+		sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
+
+	/* If check is good, copy wwpn wwnn into ndlp */
+	memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
+	memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
+	return (1);
+}
+
+static void *
+lpfc_check_elscmpl_iocb(struct lpfc_hba * phba,
+		      struct lpfc_iocbq *cmdiocb,
+		      struct lpfc_iocbq *rspiocb)
+{
+	struct lpfc_dmabuf *pcmd, *prsp;
+	uint32_t *lp;
+	void     *ptr = NULL;
+	IOCB_t   *irsp;
+
+	irsp = &rspiocb->iocb;
+	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+
+	/* For lpfc_els_abort, context2 could be zero'ed to delay
+	 * freeing associated memory till after ABTS completes.
+	 */
+	if (pcmd) {
+		prsp =  list_get_first(&pcmd->list, struct lpfc_dmabuf,
+				       list);
+		if (prsp) {
+			lp = (uint32_t *) prsp->virt;
+			ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
+		}
+	}
+	else {
+		/* Force ulpStatus error since we are returning NULL ptr */
+		if (!(irsp->ulpStatus)) {
+			irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
+			irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
+		}
+		ptr = NULL;
+	}
+	return (ptr);
+}
+
+
+/*
+ * Free resources / clean up outstanding I/Os
+ * associated with a LPFC_NODELIST entry. This
+ * routine effectively results in a "software abort".
+ */
+int
+lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+	int send_abts)
+{
+	struct lpfc_sli *psli;
+	struct lpfc_sli_ring *pring;
+	struct lpfc_iocbq *iocb, *next_iocb;
+	IOCB_t *icmd;
+	int    found = 0;
+
+	/* Abort outstanding I/O on NPort <nlp_DID> */
+	lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
+			"%d:0201 Abort outstanding I/O 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);
+
+	psli = &phba->sli;
+	pring = &psli->ring[LPFC_ELS_RING];
+
+	/* First check the txq */
+	do {
+		found = 0;
+		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))) {
+				found = 1;
+				/* 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 {
+					list_add_tail(&iocb->list,
+							&phba->lpfc_iocb_list);
+				}
+				break;
+			}
+		}
+		spin_unlock_irq(phba->host->host_lock);
+	} while (found);
+
+	/* Everything on txcmplq will be returned by firmware
+	 * with a no rpi / linkdown / abort error.  For ring 0,
+	 * ELS discovery, we want to get rid of it right here.
+	 */
+	/* Next check the txcmplq */
+	do {
+		found = 0;
+		spin_lock_irq(phba->host->host_lock);
+		list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
+					 list) {
+			/* Check to see if iocb matches the nport we are looking
+			   for */
+			if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) {
+				found = 1;
+				/* It matches, so deque and call compl with an
+				   error */
+				list_del(&iocb->list);
+				pring->txcmplq_cnt--;
+
+				icmd = &iocb->iocb;
+				/* If the driver is completing an ELS
+				 * command early, flush it out of the firmware.
+				 */
+				if (send_abts &&
+				   (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) &&
+				   (icmd->un.elsreq64.bdl.ulpIoTag32)) {
+					lpfc_sli_issue_abort_iotag32(phba,
+							     pring, iocb);
+				}
+				if (iocb->iocb_cmpl) {
+					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 {
+					list_add_tail(&iocb->list,
+							&phba->lpfc_iocb_list);
+				}
+				break;
+			}
+		}
+		spin_unlock_irq(phba->host->host_lock);
+	} while(found);
+
+	/* If we are delaying issuing an ELS command, cancel it */
+	if (ndlp->nlp_flag & NLP_DELAY_TMO) {
+		ndlp->nlp_flag &= ~NLP_DELAY_TMO;
+		del_timer_sync(&ndlp->nlp_delayfunc);
+		if (!list_empty(&ndlp->els_retry_evt.evt_listp))
+			list_del_init(&ndlp->els_retry_evt.evt_listp);
+	}
+	return (0);
+}
+
+static int
+lpfc_rcv_plogi(struct lpfc_hba * phba,
+		      struct lpfc_nodelist * ndlp,
+		      struct lpfc_iocbq *cmdiocb)
+{
+	struct lpfc_dmabuf *pcmd;
+	uint32_t *lp;
+	IOCB_t *icmd;
+	struct serv_parm *sp;
+	LPFC_MBOXQ_t *mbox;
+	struct ls_rjt stat;
+	int rc;
+
+	memset(&stat, 0, sizeof (struct ls_rjt));
+	if (phba->hba_state <= LPFC_FLOGI) {
+		/* Before responding to PLOGI, check for pt2pt mode.
+		 * If we are pt2pt, with an outstanding FLOGI, abort
+		 * the FLOGI and resend it first.
+		 */
+		if (phba->fc_flag & FC_PT2PT) {
+			lpfc_els_abort_flogi(phba);
+		        if (!(phba->fc_flag & FC_PT2PT_PLOGI)) {
+				/* If the other side is supposed to initiate
+				 * the PLOGI anyway, just ACC it now and
+				 * move on with discovery.
+				 */
+				phba->fc_edtov = FF_DEF_EDTOV;
+				phba->fc_ratov = FF_DEF_RATOV;
+				/* Start discovery - this should just do
+				   CLEAR_LA */
+				lpfc_disc_start(phba);
+			}
+			else {
+				lpfc_initial_flogi(phba);
+			}
+		}
+		else {
+			stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
+			stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
+			lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb,
+					    ndlp);
+			return 0;
+		}
+	}
+	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+	lp = (uint32_t *) pcmd->virt;
+	sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
+	if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) {
+		/* Reject this request because invalid parameters */
+		stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+		stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
+		lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+		return (0);
+	}
+	icmd = &cmdiocb->iocb;
+
+	/* PLOGI chkparm OK */
+	lpfc_printf_log(phba,
+			KERN_INFO,
+			LOG_ELS,
+			"%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
+			phba->brd_no,
+			ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
+			ndlp->nlp_rpi);
+
+	if ((phba->cfg_fcp_class == 2) &&
+	    (sp->cls2.classValid)) {
+		ndlp->nlp_fcp_info |= CLASS2;
+	} else {
+		ndlp->nlp_fcp_info |= CLASS3;
+	}
+	ndlp->nlp_class_sup = 0;
+	if (sp->cls1.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS1;
+	if (sp->cls2.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS2;
+	if (sp->cls3.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS3;
+	if (sp->cls4.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS4;
+	ndlp->nlp_maxframe =
+		((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
+
+	/* no need to reg_login if we are already in one of these states */
+	switch(ndlp->nlp_state) {
+	case  NLP_STE_NPR_NODE:
+		if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
+			break;
+	case  NLP_STE_REG_LOGIN_ISSUE:
+	case  NLP_STE_PRLI_ISSUE:
+	case  NLP_STE_UNMAPPED_NODE:
+	case  NLP_STE_MAPPED_NODE:
+		lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
+		return (1);
+	}
+
+	if ((phba->fc_flag & FC_PT2PT)
+	    && !(phba->fc_flag & FC_PT2PT_PLOGI)) {
+		/* rcv'ed PLOGI decides what our NPortId will be */
+		phba->fc_myDID = icmd->un.rcvels.parmRo;
+		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+		if (mbox == NULL)
+			goto out;
+		lpfc_config_link(phba, 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);
+			goto out;
+		}
+
+		lpfc_can_disctmo(phba);
+	}
+	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (mbox == NULL)
+		goto out;
+
+	if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID,
+			   (uint8_t *) sp, mbox, 0)) {
+		mempool_free( mbox, phba->mbox_mem_pool);
+		goto out;
+	}
+
+	/* ACC PLOGI rsp command needs to execute first,
+	 * queue this mbox command to be processed later.
+	 */
+	mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
+	mbox->context2  = ndlp;
+	ndlp->nlp_flag |= NLP_ACC_REGLOGIN;
+
+	/* If there is an outstanding PLOGI issued, abort it before
+	 * sending ACC rsp to PLOGI recieved.
+	 */
+	if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
+		/* software abort outstanding PLOGI */
+		lpfc_els_abort(phba, ndlp, 1);
+	}
+	ndlp->nlp_flag |= NLP_RCV_PLOGI;
+	lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
+	return (1);
+
+out:
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
+	lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+	return (0);
+}
+
+static int
+lpfc_rcv_padisc(struct lpfc_hba * phba,
+		struct lpfc_nodelist * ndlp,
+		struct lpfc_iocbq *cmdiocb)
+{
+	struct lpfc_dmabuf *pcmd;
+	struct serv_parm *sp;
+	struct lpfc_name *pnn, *ppn;
+	struct ls_rjt stat;
+	ADISC *ap;
+	IOCB_t *icmd;
+	uint32_t *lp;
+	uint32_t cmd;
+
+	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+	lp = (uint32_t *) pcmd->virt;
+
+	cmd = *lp++;
+	if (cmd == ELS_CMD_ADISC) {
+		ap = (ADISC *) lp;
+		pnn = (struct lpfc_name *) & ap->nodeName;
+		ppn = (struct lpfc_name *) & ap->portName;
+	} else {
+		sp = (struct serv_parm *) lp;
+		pnn = (struct lpfc_name *) & sp->nodeName;
+		ppn = (struct lpfc_name *) & sp->portName;
+	}
+
+	icmd = &cmdiocb->iocb;
+	if ((icmd->ulpStatus == 0) &&
+	    (lpfc_check_adisc(phba, ndlp, pnn, ppn))) {
+		if (cmd == ELS_CMD_ADISC) {
+			lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp);
+		}
+		else {
+			lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp,
+				NULL, 0);
+		}
+		return (1);
+	}
+	/* Reject this request because invalid parameters */
+	stat.un.b.lsRjtRsvd0 = 0;
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
+	stat.un.b.vendorUnique = 0;
+	lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+
+	ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
+	/* 1 sec timeout */
+	mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
+
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag |= NLP_DELAY_TMO;
+	spin_unlock_irq(phba->host->host_lock);
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	return (0);
+}
+
+static int
+lpfc_rcv_logo(struct lpfc_hba * phba,
+		      struct lpfc_nodelist * ndlp,
+		      struct lpfc_iocbq *cmdiocb)
+{
+	/* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */
+	/* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
+	 * PLOGIs during LOGO storms from a device.
+	 */
+	ndlp->nlp_flag |= NLP_LOGO_ACC;
+	lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+
+	if (!(ndlp->nlp_type & NLP_FABRIC)) {
+		/* Only try to re-login if this is NOT a Fabric Node */
+		ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
+		mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
+		spin_lock_irq(phba->host->host_lock);
+		ndlp->nlp_flag |= NLP_DELAY_TMO;
+		spin_unlock_irq(phba->host->host_lock);
+	}
+
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+
+	ndlp->nlp_flag &= ~NLP_NPR_ADISC;
+	/* The driver has to wait until the ACC completes before it continues
+	 * processing the LOGO.  The action will resume in
+	 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
+	 * unreg_login, the driver waits so the ACC does not get aborted.
+	 */
+	return (0);
+}
+
+static void
+lpfc_rcv_prli(struct lpfc_hba * phba,
+		      struct lpfc_nodelist * ndlp,
+		      struct lpfc_iocbq *cmdiocb)
+{
+	struct lpfc_dmabuf *pcmd;
+	uint32_t *lp;
+	PRLI *npr;
+	struct fc_rport *rport = ndlp->rport;
+	u32 roles;
+
+	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+	lp = (uint32_t *) pcmd->virt;
+	npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
+
+	ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
+	    (npr->prliType == PRLI_FCP_TYPE)) {
+		if (npr->initiatorFunc)
+			ndlp->nlp_type |= NLP_FCP_INITIATOR;
+		if (npr->targetFunc)
+			ndlp->nlp_type |= NLP_FCP_TARGET;
+		if (npr->Retry)
+			ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
+	}
+	if (rport) {
+		/* We need to update the rport role values */
+		roles = FC_RPORT_ROLE_UNKNOWN;
+		if (ndlp->nlp_type & NLP_FCP_INITIATOR)
+			roles |= FC_RPORT_ROLE_FCP_INITIATOR;
+		if (ndlp->nlp_type & NLP_FCP_TARGET)
+			roles |= FC_RPORT_ROLE_FCP_TARGET;
+		fc_remote_port_rolechg(rport, roles);
+	}
+}
+
+static uint32_t
+lpfc_disc_set_adisc(struct lpfc_hba * phba,
+		      struct lpfc_nodelist * ndlp)
+{
+	/* Check config parameter use-adisc or FCP-2 */
+	if ((phba->cfg_use_adisc == 0) &&
+		!(phba->fc_flag & FC_RSCN_MODE)) {
+		if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE))
+			return (0);
+	}
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag |= NLP_NPR_ADISC;
+	spin_unlock_irq(phba->host->host_lock);
+	return (1);
+}
+
+static uint32_t
+lpfc_disc_noop(struct lpfc_hba * phba,
+		struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	/* This routine does nothing, just return the current state */
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_disc_illegal(struct lpfc_hba * phba,
+		   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	lpfc_printf_log(phba,
+			KERN_ERR,
+			LOG_DISCOVERY,
+			"%d:0253 Illegal State Transition: node x%x event x%x, "
+			"state x%x Data: x%x x%x\n",
+			phba->brd_no,
+			ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
+			ndlp->nlp_flag);
+	return (ndlp->nlp_state);
+}
+
+/* Start of Discovery State Machine routines */
+
+static uint32_t
+lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
+		ndlp->nlp_state = NLP_STE_UNUSED_NODE;
+		lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
+		return (ndlp->nlp_state);
+	}
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_rcv_els_unused_node(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	lpfc_issue_els_logo(phba, ndlp, 0);
+	lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_unused_node(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq     *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag |= NLP_LOGO_ACC;
+	spin_unlock_irq(phba->host->host_lock);
+	lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+	lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_device_rm_unused_node(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
+			   void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb = arg;
+	struct lpfc_dmabuf *pcmd;
+	struct serv_parm *sp;
+	uint32_t *lp;
+	struct ls_rjt stat;
+	int port_cmp;
+
+	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+	lp = (uint32_t *) pcmd->virt;
+	sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
+
+	memset(&stat, 0, sizeof (struct ls_rjt));
+
+	/* For a PLOGI, we only accept if our portname is less
+	 * than the remote portname.
+	 */
+	phba->fc_stat.elsLogiCol++;
+	port_cmp = memcmp(&phba->fc_portname, &sp->portName,
+			  sizeof (struct lpfc_name));
+
+	if (port_cmp >= 0) {
+		/* Reject this request because the remote node will accept
+		   ours */
+		stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+		stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
+		lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+	}
+	else {
+		lpfc_rcv_plogi(phba, ndlp, cmdiocb);
+	} /* if our portname was less */
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq     *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* software abort outstanding PLOGI */
+	lpfc_els_abort(phba, ndlp, 1);
+	mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag |= NLP_DELAY_TMO;
+	spin_unlock_irq(phba->host->host_lock);
+
+	if (evt == NLP_EVT_RCV_LOGO) {
+		lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+	}
+	else {
+		lpfc_issue_els_logo(phba, ndlp, 0);
+	}
+
+	/* Put ndlp in npr list set plogi timer for 1 sec */
+	ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb, *rspiocb;
+	struct lpfc_dmabuf *pcmd, *prsp;
+	uint32_t *lp;
+	IOCB_t *irsp;
+	struct serv_parm *sp;
+	LPFC_MBOXQ_t *mbox;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+	rspiocb = cmdiocb->context_un.rsp_iocb;
+
+	if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
+		return (ndlp->nlp_state);
+	}
+
+	irsp = &rspiocb->iocb;
+
+	if (irsp->ulpStatus)
+		goto out;
+
+	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+
+	prsp = list_get_first(&pcmd->list,
+			      struct lpfc_dmabuf,
+			      list);
+	lp = (uint32_t *) prsp->virt;
+
+	sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
+	if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3))
+		goto out;
+
+	/* PLOGI chkparm OK */
+	lpfc_printf_log(phba,
+			KERN_INFO,
+			LOG_ELS,
+			"%d:0121 PLOGI chkparm OK "
+			"Data: x%x x%x x%x x%x\n",
+			phba->brd_no,
+			ndlp->nlp_DID, ndlp->nlp_state,
+			ndlp->nlp_flag, ndlp->nlp_rpi);
+
+	if ((phba->cfg_fcp_class == 2) &&
+	    (sp->cls2.classValid)) {
+		ndlp->nlp_fcp_info |= CLASS2;
+	} else {
+		ndlp->nlp_fcp_info |= CLASS3;
+	}
+	ndlp->nlp_class_sup = 0;
+	if (sp->cls1.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS1;
+	if (sp->cls2.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS2;
+	if (sp->cls3.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS3;
+	if (sp->cls4.classValid)
+		ndlp->nlp_class_sup |= FC_COS_CLASS4;
+	ndlp->nlp_maxframe =
+		((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
+		sp->cmn.bbRcvSizeLsb;
+
+	if (!(mbox = mempool_alloc(phba->mbox_mem_pool,
+				   GFP_KERNEL)))
+		goto out;
+
+	lpfc_unreg_rpi(phba, ndlp);
+	if (lpfc_reg_login
+	    (phba, irsp->un.elsreq64.remoteID,
+	     (uint8_t *) sp, mbox, 0) == 0) {
+		/* set_slim mailbox command needs to
+		 * execute first, queue this command to
+		 * be processed later.
+		 */
+		switch(ndlp->nlp_DID) {
+		case NameServer_DID:
+			mbox->mbox_cmpl =
+				lpfc_mbx_cmpl_ns_reg_login;
+			break;
+		case FDMI_DID:
+			mbox->mbox_cmpl =
+				lpfc_mbx_cmpl_fdmi_reg_login;
+			break;
+		default:
+			mbox->mbox_cmpl =
+				lpfc_mbx_cmpl_reg_login;
+		}
+		mbox->context2 = ndlp;
+		if (lpfc_sli_issue_mbox(phba, mbox,
+					(MBX_NOWAIT | MBX_STOP_IOCB))
+		    != MBX_NOT_FINISHED) {
+			ndlp->nlp_state =
+				NLP_STE_REG_LOGIN_ISSUE;
+			lpfc_nlp_list(phba, ndlp,
+				      NLP_REGLOGIN_LIST);
+			return (ndlp->nlp_state);
+		}
+		mempool_free(mbox, phba->mbox_mem_pool);
+	} else {
+		mempool_free(mbox, phba->mbox_mem_pool);
+	}
+
+
+ out:
+	/* Free this node since the driver cannot login or has the wrong
+	   sparm */
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_device_rm_plogi_issue(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	/* software abort outstanding PLOGI */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_device_recov_plogi_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	/* software abort outstanding PLOGI */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	spin_unlock_irq(phba->host->host_lock);
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	/* software abort outstanding ADISC */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
+		return (ndlp->nlp_state);
+	}
+	ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
+	lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+	lpfc_issue_els_plogi(phba, ndlp, 0);
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* software abort outstanding ADISC */
+	lpfc_els_abort(phba, ndlp, 0);
+
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* Treat like rcv logo */
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb, *rspiocb;
+	IOCB_t *irsp;
+	ADISC *ap;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+	rspiocb = cmdiocb->context_un.rsp_iocb;
+
+	ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
+	irsp = &rspiocb->iocb;
+
+	if ((irsp->ulpStatus) ||
+		(!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) {
+		ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
+		/* 1 sec timeout */
+		mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
+		spin_lock_irq(phba->host->host_lock);
+		ndlp->nlp_flag |= NLP_DELAY_TMO;
+		spin_unlock_irq(phba->host->host_lock);
+
+		memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name));
+		memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name));
+
+		ndlp->nlp_state = NLP_STE_NPR_NODE;
+		lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+		lpfc_unreg_rpi(phba, ndlp);
+		return (ndlp->nlp_state);
+	}
+	ndlp->nlp_state = NLP_STE_MAPPED_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_device_rm_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	/* software abort outstanding ADISC */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_device_recov_adisc_issue(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	/* software abort outstanding ADISC */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	spin_unlock_irq(phba->host->host_lock);
+
+	lpfc_disc_set_adisc(phba, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba,
+			      struct lpfc_nodelist * ndlp, void *arg,
+			      uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_plogi(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba,
+			     struct lpfc_nodelist * ndlp, void *arg,
+			     uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba,
+			     struct lpfc_nodelist * ndlp, void *arg,
+			     uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba,
+			       struct lpfc_nodelist * ndlp, void *arg,
+			       uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba,
+			     struct lpfc_nodelist * ndlp, void *arg,
+			     uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+	lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba,
+				  struct lpfc_nodelist * ndlp,
+				  void *arg, uint32_t evt)
+{
+	LPFC_MBOXQ_t *pmb;
+	MAILBOX_t *mb;
+	uint32_t did;
+
+	pmb = (LPFC_MBOXQ_t *) arg;
+	mb = &pmb->mb;
+	did = mb->un.varWords[1];
+	if (mb->mbxStatus) {
+		/* RegLogin failed */
+		lpfc_printf_log(phba,
+				KERN_ERR,
+				LOG_DISCOVERY,
+				"%d:0246 RegLogin failed Data: x%x x%x x%x\n",
+				phba->brd_no,
+				did, mb->mbxStatus, phba->hba_state);
+
+		mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
+		spin_lock_irq(phba->host->host_lock);
+		ndlp->nlp_flag |= NLP_DELAY_TMO;
+		spin_unlock_irq(phba->host->host_lock);
+
+		lpfc_issue_els_logo(phba, ndlp, 0);
+		/* Put ndlp in npr list set plogi timer for 1 sec */
+		ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
+		ndlp->nlp_state = NLP_STE_NPR_NODE;
+		lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+		return (ndlp->nlp_state);
+	}
+
+	if (ndlp->nlp_rpi != 0)
+		lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
+
+	ndlp->nlp_rpi = mb->un.varWords[0];
+	lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
+
+	/* Only if we are not a fabric nport do we issue PRLI */
+	if (!(ndlp->nlp_type & NLP_FABRIC)) {
+		ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
+		lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
+		lpfc_issue_els_prli(phba, ndlp, 0);
+	} else {
+		ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
+		lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
+	}
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba,
+			      struct lpfc_nodelist * ndlp, void *arg,
+			      uint32_t evt)
+{
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba,
+			       struct lpfc_nodelist * ndlp, void *arg,
+			       uint32_t evt)
+{
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	spin_unlock_irq(phba->host->host_lock);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_plogi(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* Software abort outstanding PRLI before sending acc */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+/* This routine is envoked when we rcv a PRLO request from a nport
+ * we are logged into.  We should send back a PRLO rsp setting the
+ * appropriate bits.
+ * NEXT STATE = PRLI_ISSUE
+ */
+static uint32_t
+lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+	lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb, *rspiocb;
+	IOCB_t *irsp;
+	PRLI *npr;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+	rspiocb = cmdiocb->context_un.rsp_iocb;
+	npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
+
+	irsp = &rspiocb->iocb;
+	if (irsp->ulpStatus) {
+		ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
+		lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
+		return (ndlp->nlp_state);
+	}
+
+	/* Check out PRLI rsp */
+	ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
+	    (npr->prliType == PRLI_FCP_TYPE)) {
+		if (npr->initiatorFunc)
+			ndlp->nlp_type |= NLP_FCP_INITIATOR;
+		if (npr->targetFunc)
+			ndlp->nlp_type |= NLP_FCP_TARGET;
+		if (npr->Retry)
+			ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
+	}
+
+	ndlp->nlp_state = NLP_STE_MAPPED_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
+	return (ndlp->nlp_state);
+}
+
+/*! lpfc_device_rm_prli_issue
+  *
+  * \pre
+  * \post
+  * \param   phba
+  * \param   ndlp
+  * \param   arg
+  * \param   evt
+  * \return  uint32_t
+  *
+  * \b Description:
+  *    This routine is envoked when we a request to remove a nport we are in the
+  *    process of PRLIing. We should software abort outstanding prli, unreg
+  *    login, send a logout. We will change node state to UNUSED_NODE, put it
+  *    on plogi list so it can be freed when LOGO completes.
+  *
+  */
+static uint32_t
+lpfc_device_rm_prli_issue(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	/* software abort outstanding PRLI */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+
+/*! lpfc_device_recov_prli_issue
+  *
+  * \pre
+  * \post
+  * \param   phba
+  * \param   ndlp
+  * \param   arg
+  * \param   evt
+  * \return  uint32_t
+  *
+  * \b Description:
+  *    The routine is envoked when the state of a device is unknown, like
+  *    during a link down. We should remove the nodelist entry from the
+  *    unmapped list, issue a UNREG_LOGIN, do a software abort of the
+  *    outstanding PRLI command, then free the node entry.
+  */
+static uint32_t
+lpfc_device_recov_prli_issue(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	/* software abort outstanding PRLI */
+	lpfc_els_abort(phba, ndlp, 1);
+
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	spin_unlock_irq(phba->host->host_lock);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_plogi(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_prli(phba, ndlp, cmdiocb);
+	lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba,
+			 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* Treat like rcv logo */
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_device_recov_unmap_node(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	lpfc_disc_set_adisc(phba, ndlp);
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba,
+			   struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_plogi(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba,
+			  struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* flush the target */
+	spin_lock_irq(phba->host->host_lock);
+	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);
+
+	/* Treat like rcv logo */
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_device_recov_mapped_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	ndlp->nlp_state = NLP_STE_NPR_NODE;
+	lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	spin_unlock_irq(phba->host->host_lock);
+	lpfc_disc_set_adisc(phba, ndlp);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	/* Ignore PLOGI if we have an outstanding LOGO */
+	if (ndlp->nlp_flag & NLP_LOGO_SND) {
+		return (ndlp->nlp_state);
+	}
+
+	if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
+		spin_lock_irq(phba->host->host_lock);
+		ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
+		spin_unlock_irq(phba->host->host_lock);
+		return (ndlp->nlp_state);
+	}
+
+	/* send PLOGI immediately, move to PLOGI issue state */
+	if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
+			ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
+			lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+			lpfc_issue_els_plogi(phba, ndlp, 0);
+	}
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prli_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq     *cmdiocb;
+	struct ls_rjt          stat;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	memset(&stat, 0, sizeof (struct ls_rjt));
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
+	lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
+
+	if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
+		if (ndlp->nlp_flag & NLP_NPR_ADISC) {
+			ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
+			lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
+			lpfc_issue_els_adisc(phba, ndlp, 0);
+		} else {
+			ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
+			lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+			lpfc_issue_els_plogi(phba, ndlp, 0);
+		}
+	}
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_logo_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq     *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_logo(phba, ndlp, cmdiocb);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq     *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
+
+	if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
+		if (ndlp->nlp_flag & NLP_NPR_ADISC) {
+			ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
+			lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
+			lpfc_issue_els_adisc(phba, ndlp, 0);
+		} else {
+			ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
+			lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+			lpfc_issue_els_plogi(phba, ndlp, 0);
+		}
+	}
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	struct lpfc_iocbq     *cmdiocb;
+
+	cmdiocb = (struct lpfc_iocbq *) arg;
+
+	lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
+
+	if (ndlp->nlp_flag & NLP_DELAY_TMO) {
+		if (ndlp->nlp_last_elscmd == (unsigned long)ELS_CMD_PLOGI) {
+			return (ndlp->nlp_state);
+		} else {
+			spin_lock_irq(phba->host->host_lock);
+			ndlp->nlp_flag &= ~NLP_DELAY_TMO;
+			spin_unlock_irq(phba->host->host_lock);
+			del_timer_sync(&ndlp->nlp_delayfunc);
+			if (!list_empty(&ndlp->els_retry_evt.evt_listp))
+				list_del_init(&ndlp->els_retry_evt.evt_listp);
+		}
+	}
+
+	ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
+	lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
+	lpfc_issue_els_plogi(phba, ndlp, 0);
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba,
+		struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	lpfc_unreg_rpi(phba, ndlp);
+	/* This routine does nothing, just return the current state */
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	LPFC_MBOXQ_t *pmb;
+	MAILBOX_t *mb;
+
+	pmb = (LPFC_MBOXQ_t *) arg;
+	mb = &pmb->mb;
+
+	/* save rpi */
+	if (ndlp->nlp_rpi != 0)
+		lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
+
+	ndlp->nlp_rpi = mb->un.varWords[0];
+	lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
+
+	return (ndlp->nlp_state);
+}
+
+static uint32_t
+lpfc_device_rm_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+	return (NLP_STE_FREED_NODE);
+}
+
+static uint32_t
+lpfc_device_recov_npr_node(struct lpfc_hba * phba,
+			    struct lpfc_nodelist * ndlp, void *arg,
+			    uint32_t evt)
+{
+	spin_lock_irq(phba->host->host_lock);
+	ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+	spin_unlock_irq(phba->host->host_lock);
+	return (ndlp->nlp_state);
+}
+
+
+/* This next section defines the NPort Discovery State Machine */
+
+/* There are 4 different double linked lists nodelist entries can reside on.
+ * The plogi list and adisc list are used when Link Up discovery or RSCN
+ * processing is needed. Each list holds the nodes that we will send PLOGI
+ * or ADISC on. These lists will keep track of what nodes will be effected
+ * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
+ * The unmapped_list will contain all nodes that we have successfully logged
+ * into at the Fibre Channel level. The mapped_list will contain all nodes
+ * that are mapped FCP targets.
+ */
+/*
+ * The bind list is a list of undiscovered (potentially non-existent) nodes
+ * that we have saved binding information on. This information is used when
+ * nodes transition from the unmapped to the mapped list.
+ */
+/* For UNUSED_NODE state, the node has just been allocated .
+ * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
+ * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
+ * and put on the unmapped list. For ADISC processing, the node is taken off
+ * the ADISC list and placed on either the mapped or unmapped list (depending
+ * on its previous state). Once on the unmapped list, a PRLI is issued and the
+ * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
+ * changed to UNMAPPED_NODE. If the completion indicates a mapped
+ * node, the node is taken off the unmapped list. The binding list is checked
+ * for a valid binding, or a binding is automatically assigned. If binding
+ * assignment is unsuccessful, the node is left on the unmapped list. If
+ * binding assignment is successful, the associated binding list entry (if
+ * any) is removed, and the node is placed on the mapped list.
+ */
+/*
+ * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
+ * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
+ * expire, all effected nodes will receive a DEVICE_RM event.
+ */
+/*
+ * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
+ * to either the ADISC or PLOGI list.  After a Nameserver query or ALPA loopmap
+ * check, additional nodes may be added or removed (via DEVICE_RM) to / from
+ * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
+ * we will first process the ADISC list.  32 entries are processed initially and
+ * ADISC is initited for each one.  Completions / Events for each node are
+ * funnelled thru the state machine.  As each node finishes ADISC processing, it
+ * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
+ * waiting, and the ADISC list count is identically 0, then we are done. For
+ * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
+ * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
+ * list.  32 entries are processed initially and PLOGI is initited for each one.
+ * Completions / Events for each node are funnelled thru the state machine.  As
+ * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
+ * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
+ * indentically 0, then we are done. We have now completed discovery / RSCN
+ * handling. Upon completion, ALL nodes should be on either the mapped or
+ * unmapped lists.
+ */
+
+static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
+     (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = {
+	/* Action routine                  Event       Current State  */
+	lpfc_rcv_plogi_unused_node,	/* RCV_PLOGI   UNUSED_NODE    */
+	lpfc_rcv_els_unused_node,	/* RCV_PRLI        */
+	lpfc_rcv_logo_unused_node,	/* RCV_LOGO        */
+	lpfc_rcv_els_unused_node,	/* RCV_ADISC       */
+	lpfc_rcv_els_unused_node,	/* RCV_PDISC       */
+	lpfc_rcv_els_unused_node,	/* RCV_PRLO        */
+	lpfc_disc_illegal,		/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_cmpl_logo_unused_node,	/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_device_rm_unused_node,	/* DEVICE_RM       */
+	lpfc_disc_illegal,		/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_plogi_issue,	/* RCV_PLOGI   PLOGI_ISSUE    */
+	lpfc_rcv_els_plogi_issue,	/* RCV_PRLI        */
+	lpfc_rcv_els_plogi_issue,	/* RCV_LOGO        */
+	lpfc_rcv_els_plogi_issue,	/* RCV_ADISC       */
+	lpfc_rcv_els_plogi_issue,	/* RCV_PDISC       */
+	lpfc_rcv_els_plogi_issue,	/* RCV_PRLO        */
+	lpfc_cmpl_plogi_plogi_issue,	/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_disc_illegal,		/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_device_rm_plogi_issue,	/* DEVICE_RM       */
+	lpfc_device_recov_plogi_issue,	/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_adisc_issue,	/* RCV_PLOGI   ADISC_ISSUE    */
+	lpfc_rcv_prli_adisc_issue,	/* RCV_PRLI        */
+	lpfc_rcv_logo_adisc_issue,	/* RCV_LOGO        */
+	lpfc_rcv_padisc_adisc_issue,	/* RCV_ADISC       */
+	lpfc_rcv_padisc_adisc_issue,	/* RCV_PDISC       */
+	lpfc_rcv_prlo_adisc_issue,	/* RCV_PRLO        */
+	lpfc_disc_illegal,		/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_disc_illegal,		/* CMPL_LOGO       */
+	lpfc_cmpl_adisc_adisc_issue,	/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_device_rm_adisc_issue,	/* DEVICE_RM       */
+	lpfc_device_recov_adisc_issue,	/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_reglogin_issue,	/* RCV_PLOGI  REG_LOGIN_ISSUE */
+	lpfc_rcv_prli_reglogin_issue,	/* RCV_PLOGI       */
+	lpfc_rcv_logo_reglogin_issue,	/* RCV_LOGO        */
+	lpfc_rcv_padisc_reglogin_issue,	/* RCV_ADISC       */
+	lpfc_rcv_padisc_reglogin_issue,	/* RCV_PDISC       */
+	lpfc_rcv_prlo_reglogin_issue,	/* RCV_PRLO        */
+	lpfc_disc_illegal,		/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_disc_illegal,		/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN  */
+	lpfc_device_rm_reglogin_issue,	/* DEVICE_RM       */
+	lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_prli_issue,	/* RCV_PLOGI   PRLI_ISSUE     */
+	lpfc_rcv_prli_prli_issue,	/* RCV_PRLI        */
+	lpfc_rcv_logo_prli_issue,	/* RCV_LOGO        */
+	lpfc_rcv_padisc_prli_issue,	/* RCV_ADISC       */
+	lpfc_rcv_padisc_prli_issue,	/* RCV_PDISC       */
+	lpfc_rcv_prlo_prli_issue,	/* RCV_PRLO        */
+	lpfc_disc_illegal,		/* CMPL_PLOGI      */
+	lpfc_cmpl_prli_prli_issue,	/* CMPL_PRLI       */
+	lpfc_disc_illegal,		/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_device_rm_prli_issue,	/* DEVICE_RM       */
+	lpfc_device_recov_prli_issue,	/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_unmap_node,	/* RCV_PLOGI   UNMAPPED_NODE  */
+	lpfc_rcv_prli_unmap_node,	/* RCV_PRLI        */
+	lpfc_rcv_logo_unmap_node,	/* RCV_LOGO        */
+	lpfc_rcv_padisc_unmap_node,	/* RCV_ADISC       */
+	lpfc_rcv_padisc_unmap_node,	/* RCV_PDISC       */
+	lpfc_rcv_prlo_unmap_node,	/* RCV_PRLO        */
+	lpfc_disc_illegal,		/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_disc_illegal,		/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_disc_illegal,		/* DEVICE_RM       */
+	lpfc_device_recov_unmap_node,	/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_mapped_node,	/* RCV_PLOGI   MAPPED_NODE    */
+	lpfc_rcv_prli_mapped_node,	/* RCV_PRLI        */
+	lpfc_rcv_logo_mapped_node,	/* RCV_LOGO        */
+	lpfc_rcv_padisc_mapped_node,	/* RCV_ADISC       */
+	lpfc_rcv_padisc_mapped_node,	/* RCV_PDISC       */
+	lpfc_rcv_prlo_mapped_node,	/* RCV_PRLO        */
+	lpfc_disc_illegal,		/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_disc_illegal,		/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_disc_illegal,		/* DEVICE_RM       */
+	lpfc_device_recov_mapped_node,	/* DEVICE_RECOVERY */
+
+	lpfc_rcv_plogi_npr_node,        /* RCV_PLOGI   NPR_NODE    */
+	lpfc_rcv_prli_npr_node,         /* RCV_PRLI        */
+	lpfc_rcv_logo_npr_node,         /* RCV_LOGO        */
+	lpfc_rcv_padisc_npr_node,       /* RCV_ADISC       */
+	lpfc_rcv_padisc_npr_node,       /* RCV_PDISC       */
+	lpfc_rcv_prlo_npr_node,         /* RCV_PRLO        */
+	lpfc_disc_noop,			/* CMPL_PLOGI      */
+	lpfc_disc_noop,			/* CMPL_PRLI       */
+	lpfc_cmpl_logo_npr_node,        /* CMPL_LOGO       */
+	lpfc_disc_noop,			/* CMPL_ADISC      */
+	lpfc_cmpl_reglogin_npr_node,    /* CMPL_REG_LOGIN  */
+	lpfc_device_rm_npr_node,        /* DEVICE_RM       */
+	lpfc_device_recov_npr_node,     /* DEVICE_RECOVERY */
+};
+
+int
+lpfc_disc_state_machine(struct lpfc_hba * phba,
+			struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
+{
+	uint32_t cur_state, rc;
+	uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *,
+			 uint32_t);
+
+	ndlp->nlp_disc_refcnt++;
+	cur_state = ndlp->nlp_state;
+
+	/* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
+	lpfc_printf_log(phba,
+			KERN_INFO,
+			LOG_DISCOVERY,
+			"%d:0211 DSM in event x%x on NPort x%x in state %d "
+			"Data: x%x\n",
+			phba->brd_no,
+			evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
+
+	func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
+	rc = (func) (phba, ndlp, arg, evt);
+
+	/* DSM out state <rc> on NPort <nlp_DID> */
+	lpfc_printf_log(phba,
+		       KERN_INFO,
+		       LOG_DISCOVERY,
+		       "%d:0212 DSM out state %d on NPort x%x Data: x%x\n",
+		       phba->brd_no,
+		       rc, ndlp->nlp_DID, ndlp->nlp_flag);
+
+	ndlp->nlp_disc_refcnt--;
+
+	/* Check to see if ndlp removal is deferred */
+	if ((ndlp->nlp_disc_refcnt == 0)
+	    && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) {
+		spin_lock_irq(phba->host->host_lock);
+		ndlp->nlp_flag &= ~NLP_DELAY_REMOVE;
+		spin_unlock_irq(phba->host->host_lock);
+		lpfc_nlp_remove(phba, ndlp);
+		return (NLP_STE_FREED_NODE);
+	}
+	if (rc == NLP_STE_FREED_NODE)
+		return (NLP_STE_FREED_NODE);
+	ndlp->nlp_state = rc;
+	return (rc);
+}