/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *
 * EMULEX and SLI are trademarks of Emulex.                        *
 * www.emulex.com                                                  *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
 *******************************************************************/

/*
 * Fibre Channel SCSI LAN Device Driver CT support: FC Generic Services FC-GS
 */

#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/utsname.h>

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

#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"

/* FDMI Port Speed definitions */
#define HBA_PORTSPEED_1GBIT             0x0001  /* 1 GBit/sec */
#define HBA_PORTSPEED_2GBIT             0x0002  /* 2 GBit/sec */
#define HBA_PORTSPEED_4GBIT             0x0008  /* 4 GBit/sec */
#define HBA_PORTSPEED_10GBIT            0x0004  /* 10 GBit/sec */
#define HBA_PORTSPEED_8GBIT             0x0010  /* 8 GBit/sec */
#define HBA_PORTSPEED_16GBIT            0x0020  /* 16 GBit/sec */
#define HBA_PORTSPEED_UNKNOWN           0x0800  /* Unknown */

#define FOURBYTES       4


static char *lpfc_release_version = LPFC_DRIVER_VERSION;

static void
lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
                          struct lpfc_dmabuf *mp, uint32_t size)
{
        if (!mp) {
                lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
                                "0146 Ignoring unsolicited CT No HBQ "
                                "status = x%x\n",
                                piocbq->iocb.ulpStatus);
        }
        lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
                        "0145 Ignoring unsolicted CT HBQ Size:%d "
                        "status = x%x\n",
                        size, piocbq->iocb.ulpStatus);
}

static void
lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
                     struct lpfc_dmabuf *mp, uint32_t size)
{
        lpfc_ct_ignore_hbq_buffer(phba, piocbq, mp, size);
}

void
lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                    struct lpfc_iocbq *piocbq)
{
        struct lpfc_dmabuf *mp = NULL;
        IOCB_t *icmd = &piocbq->iocb;
        int i;
        struct lpfc_iocbq *iocbq;
        dma_addr_t paddr;
        uint32_t size;
        struct list_head head;
        struct lpfc_dmabuf *bdeBuf;

        if (lpfc_bsg_ct_unsol_event(phba, pring, piocbq) == 0)
                return;

        if (unlikely(icmd->ulpStatus == IOSTAT_NEED_BUFFER)) {
                lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
        } else if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
                   ((icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
                   IOERR_RCV_BUFFER_WAITING)) {
                /* Not enough posted buffers; Try posting more buffers */
                phba->fc_stat.NoRcvBuf++;
                if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
                        lpfc_post_buffer(phba, pring, 2);
                return;
        }

        /* If there are no BDEs associated with this IOCB,
         * there is nothing to do.
         */
        if (icmd->ulpBdeCount == 0)
                return;

        if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
                INIT_LIST_HEAD(&head);
                list_add_tail(&head, &piocbq->list);
                list_for_each_entry(iocbq, &head, list) {
                        icmd = &iocbq->iocb;
                        if (icmd->ulpBdeCount == 0)
                                continue;
                        bdeBuf = iocbq->context2;
                        iocbq->context2 = NULL;
                        size  = icmd->un.cont64[0].tus.f.bdeSize;
                        lpfc_ct_unsol_buffer(phba, piocbq, bdeBuf, size);
                        lpfc_in_buf_free(phba, bdeBuf);
                        if (icmd->ulpBdeCount == 2) {
                                bdeBuf = iocbq->context3;
                                iocbq->context3 = NULL;
                                size  = icmd->unsli3.rcvsli3.bde2.tus.f.bdeSize;
                                lpfc_ct_unsol_buffer(phba, piocbq, bdeBuf,
                                                     size);
                                lpfc_in_buf_free(phba, bdeBuf);
                        }
                }
                list_del(&head);
        } else {
                INIT_LIST_HEAD(&head);
                list_add_tail(&head, &piocbq->list);
                list_for_each_entry(iocbq, &head, list) {
                        icmd = &iocbq->iocb;
                        if (icmd->ulpBdeCount == 0)
                                lpfc_ct_unsol_buffer(phba, iocbq, NULL, 0);
                        for (i = 0; i < icmd->ulpBdeCount; i++) {
                                paddr = getPaddr(icmd->un.cont64[i].addrHigh,
                                                 icmd->un.cont64[i].addrLow);
                                mp = lpfc_sli_ringpostbuf_get(phba, pring,
                                                              paddr);
                                size = icmd->un.cont64[i].tus.f.bdeSize;
                                lpfc_ct_unsol_buffer(phba, iocbq, mp, size);
                                lpfc_in_buf_free(phba, mp);
                        }
                        lpfc_post_buffer(phba, pring, i);
                }
                list_del(&head);
        }
}

/**
 * lpfc_ct_handle_unsol_abort - ct upper level protocol abort handler
 * @phba: Pointer to HBA context object.
 * @dmabuf: pointer to a dmabuf that describes the FC sequence
 *
 * This function serves as the upper level protocol abort handler for CT
 * protocol.
 *
 * Return 1 if abort has been handled, 0 otherwise.
 **/
int
lpfc_ct_handle_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
{
        int handled;

        /* CT upper level goes through BSG */
        handled = lpfc_bsg_ct_unsol_abort(phba, dmabuf);

        return handled;
}

static void
lpfc_free_ct_rsp(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
{
        struct lpfc_dmabuf *mlast, *next_mlast;

        list_for_each_entry_safe(mlast, next_mlast, &mlist->list, list) {
                lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
                list_del(&mlast->list);
                kfree(mlast);
        }
        lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
        kfree(mlist);
        return;
}

static struct lpfc_dmabuf *
lpfc_alloc_ct_rsp(struct lpfc_hba *phba, int cmdcode, struct ulp_bde64 *bpl,
                  uint32_t size, int *entries)
{
        struct lpfc_dmabuf *mlist = NULL;
        struct lpfc_dmabuf *mp;
        int cnt, i = 0;

        /* We get chunks of FCELSSIZE */
        cnt = size > FCELSSIZE ? FCELSSIZE: size;

        while (size) {
                /* Allocate buffer for rsp payload */
                mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
                if (!mp) {
                        if (mlist)
                                lpfc_free_ct_rsp(phba, mlist);
                        return NULL;
                }

                INIT_LIST_HEAD(&mp->list);

                if (cmdcode == be16_to_cpu(SLI_CTNS_GID_FT) ||
                    cmdcode == be16_to_cpu(SLI_CTNS_GFF_ID))
                        mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
                else
                        mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys));

                if (!mp->virt) {
                        kfree(mp);
                        if (mlist)
                                lpfc_free_ct_rsp(phba, mlist);
                        return NULL;
                }

                /* Queue it to a linked list */
                if (!mlist)
                        mlist = mp;
                else
                        list_add_tail(&mp->list, &mlist->list);

                bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
                /* build buffer ptr list for IOCB */
                bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) );
                bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) );
                bpl->tus.f.bdeSize = (uint16_t) cnt;
                bpl->tus.w = le32_to_cpu(bpl->tus.w);
                bpl++;

                i++;
                size -= cnt;
        }

        *entries = i;
        return mlist;
}

int
lpfc_ct_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *ctiocb)
{
        struct lpfc_dmabuf *buf_ptr;

        if (ctiocb->context_un.ndlp) {
                lpfc_nlp_put(ctiocb->context_un.ndlp);
                ctiocb->context_un.ndlp = NULL;
        }
        if (ctiocb->context1) {
                buf_ptr = (struct lpfc_dmabuf *) ctiocb->context1;
                lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
                kfree(buf_ptr);
                ctiocb->context1 = NULL;
        }
        if (ctiocb->context2) {
                lpfc_free_ct_rsp(phba, (struct lpfc_dmabuf *) ctiocb->context2);
                ctiocb->context2 = NULL;
        }

        if (ctiocb->context3) {
                buf_ptr = (struct lpfc_dmabuf *) ctiocb->context3;
                lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
                kfree(buf_ptr);
                ctiocb->context1 = NULL;
        }
        lpfc_sli_release_iocbq(phba, ctiocb);
        return 0;
}

static int
lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
             struct lpfc_dmabuf *inp, struct lpfc_dmabuf *outp,
             void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
                     struct lpfc_iocbq *),
             struct lpfc_nodelist *ndlp, uint32_t usr_flg, uint32_t num_entry,
             uint32_t tmo, uint8_t retry)
{
        struct lpfc_hba  *phba = vport->phba;
        IOCB_t *icmd;
        struct lpfc_iocbq *geniocb;
        int rc;

        /* Allocate buffer for  command iocb */
        geniocb = lpfc_sli_get_iocbq(phba);

        if (geniocb == NULL)
                return 1;

        icmd = &geniocb->iocb;
        icmd->un.genreq64.bdl.ulpIoTag32 = 0;
        icmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
        icmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
        icmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
        icmd->un.genreq64.bdl.bdeSize = (num_entry * sizeof (struct ulp_bde64));

        if (usr_flg)
                geniocb->context3 = NULL;
        else
                geniocb->context3 = (uint8_t *) bmp;

        /* Save for completion so we can release these resources */
        geniocb->context1 = (uint8_t *) inp;
        geniocb->context2 = (uint8_t *) outp;
        geniocb->context_un.ndlp = lpfc_nlp_get(ndlp);

        /* Fill in payload, bp points to frame payload */
        icmd->ulpCommand = CMD_GEN_REQUEST64_CR;

        /* Fill in rest of iocb */
        icmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
        icmd->un.genreq64.w5.hcsw.Dfctl = 0;
        icmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
        icmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;

        if (!tmo) {
                 /* FC spec states we need 3 * ratov for CT requests */
                tmo = (3 * phba->fc_ratov);
        }
        icmd->ulpTimeout = tmo;
        icmd->ulpBdeCount = 1;
        icmd->ulpLe = 1;
        icmd->ulpClass = CLASS3;
        icmd->ulpContext = ndlp->nlp_rpi;
        if (phba->sli_rev == LPFC_SLI_REV4)
                icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];

        if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
                /* For GEN_REQUEST64_CR, use the RPI */
                icmd->ulpCt_h = 0;
                icmd->ulpCt_l = 0;
        }

        /* Issue GEN REQ IOCB for NPORT <did> */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
                         "0119 Issue GEN REQ IOCB to NPORT x%x "
                         "Data: x%x x%x\n",
                         ndlp->nlp_DID, icmd->ulpIoTag,
                         vport->port_state);
        geniocb->iocb_cmpl = cmpl;
        geniocb->drvrTimeout = icmd->ulpTimeout + LPFC_DRVR_TIMEOUT;
        geniocb->vport = vport;
        geniocb->retry = retry;
        rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, geniocb, 0);

        if (rc == IOCB_ERROR) {
                lpfc_sli_release_iocbq(phba, geniocb);
                return 1;
        }

        return 0;
}

static int
lpfc_ct_cmd(struct lpfc_vport *vport, struct lpfc_dmabuf *inmp,
            struct lpfc_dmabuf *bmp, struct lpfc_nodelist *ndlp,
            void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
                          struct lpfc_iocbq *),
            uint32_t rsp_size, uint8_t retry)
{
        struct lpfc_hba  *phba = vport->phba;
        struct ulp_bde64 *bpl = (struct ulp_bde64 *) bmp->virt;
        struct lpfc_dmabuf *outmp;
        int cnt = 0, status;
        int cmdcode = ((struct lpfc_sli_ct_request *) inmp->virt)->
                CommandResponse.bits.CmdRsp;

        bpl++;                  /* Skip past ct request */

        /* Put buffer(s) for ct rsp in bpl */
        outmp = lpfc_alloc_ct_rsp(phba, cmdcode, bpl, rsp_size, &cnt);
        if (!outmp)
                return -ENOMEM;
        /*
         * Form the CT IOCB.  The total number of BDEs in this IOCB
         * is the single command plus response count from
         * lpfc_alloc_ct_rsp.
         */
        cnt += 1;
        status = lpfc_gen_req(vport, bmp, inmp, outmp, cmpl, ndlp, 0,
                              cnt, 0, retry);
        if (status) {
                lpfc_free_ct_rsp(phba, outmp);
                return -ENOMEM;
        }
        return 0;
}

struct lpfc_vport *
lpfc_find_vport_by_did(struct lpfc_hba *phba, uint32_t did) {
        struct lpfc_vport *vport_curr;
        unsigned long flags;

        spin_lock_irqsave(&phba->hbalock, flags);
        list_for_each_entry(vport_curr, &phba->port_list, listentry) {
                if ((vport_curr->fc_myDID) && (vport_curr->fc_myDID == did)) {
                        spin_unlock_irqrestore(&phba->hbalock, flags);
                        return vport_curr;
                }
        }
        spin_unlock_irqrestore(&phba->hbalock, flags);
        return NULL;
}

static int
lpfc_ns_rsp(struct lpfc_vport *vport, struct lpfc_dmabuf *mp, uint32_t Size)
{
        struct lpfc_hba  *phba = vport->phba;
        struct lpfc_sli_ct_request *Response =
                (struct lpfc_sli_ct_request *) mp->virt;
        struct lpfc_nodelist *ndlp = NULL;
        struct lpfc_dmabuf *mlast, *next_mp;
        uint32_t *ctptr = (uint32_t *) & Response->un.gid.PortType;
        uint32_t Did, CTentry;
        int Cnt;
        struct list_head head;

        lpfc_set_disctmo(vport);
        vport->num_disc_nodes = 0;
        vport->fc_ns_retry = 0;


        list_add_tail(&head, &mp->list);
        list_for_each_entry_safe(mp, next_mp, &head, list) {
                mlast = mp;

                Cnt = Size  > FCELSSIZE ? FCELSSIZE : Size;

                Size -= Cnt;

                if (!ctptr) {
                        ctptr = (uint32_t *) mlast->virt;
                } else
                        Cnt -= 16;      /* subtract length of CT header */

                /* Loop through entire NameServer list of DIDs */
                while (Cnt >= sizeof (uint32_t)) {
                        /* Get next DID from NameServer List */
                        CTentry = *ctptr++;
                        Did = ((be32_to_cpu(CTentry)) & Mask_DID);

                        ndlp = NULL;

                        /*
                         * Check for rscn processing or not
                         * To conserve rpi's, filter out addresses for other
                         * vports on the same physical HBAs.
                         */
                        if ((Did != vport->fc_myDID) &&
                            ((lpfc_find_vport_by_did(phba, Did) == NULL) ||
                             vport->cfg_peer_port_login)) {
                                if ((vport->port_type != LPFC_NPIV_PORT) ||
                                    (!(vport->ct_flags & FC_CT_RFF_ID)) ||
                                    (!vport->cfg_restrict_login)) {
                                        ndlp = lpfc_setup_disc_node(vport, Did);
                                        if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
                                                lpfc_debugfs_disc_trc(vport,
                                                LPFC_DISC_TRC_CT,
                                                "Parse GID_FTrsp: "
                                                "did:x%x flg:x%x x%x",
                                                Did, ndlp->nlp_flag,
                                                vport->fc_flag);

                                                lpfc_printf_vlog(vport,
                                                        KERN_INFO,
                                                        LOG_DISCOVERY,
                                                        "0238 Process "
                                                        "x%x NameServer Rsp"
                                                        "Data: x%x x%x x%x\n",
                                                        Did, ndlp->nlp_flag,
                                                        vport->fc_flag,
                                                        vport->fc_rscn_id_cnt);
                                        } else {
                                                lpfc_debugfs_disc_trc(vport,
                                                LPFC_DISC_TRC_CT,
                                                "Skip1 GID_FTrsp: "
                                                "did:x%x flg:x%x cnt:%d",
                                                Did, vport->fc_flag,
                                                vport->fc_rscn_id_cnt);

                                                lpfc_printf_vlog(vport,
                                                        KERN_INFO,
                                                        LOG_DISCOVERY,
                                                        "0239 Skip x%x "
                                                        "NameServer Rsp Data: "
                                                        "x%x x%x\n",
                                                        Did, vport->fc_flag,
                                                        vport->fc_rscn_id_cnt);
                                        }

                                } else {
                                        if (!(vport->fc_flag & FC_RSCN_MODE) ||
                                        (lpfc_rscn_payload_check(vport, Did))) {
                                                lpfc_debugfs_disc_trc(vport,
                                                LPFC_DISC_TRC_CT,
                                                "Query GID_FTrsp: "
                                                "did:x%x flg:x%x cnt:%d",
                                                Did, vport->fc_flag,
                                                vport->fc_rscn_id_cnt);

                                                /* This NPortID was previously
                                                 * a FCP target, * Don't even
                                                 * bother to send GFF_ID.
                                                 */
                                                ndlp = lpfc_findnode_did(vport,
                                                        Did);
                                                if (ndlp &&
                                                    NLP_CHK_NODE_ACT(ndlp)
                                                    && (ndlp->nlp_type &
                                                     NLP_FCP_TARGET))
                                                        lpfc_setup_disc_node
                                                                (vport, Did);
                                                else if (lpfc_ns_cmd(vport,
                                                        SLI_CTNS_GFF_ID,
                                                        0, Did) == 0)
                                                        vport->num_disc_nodes++;
                                                else
                                                        lpfc_setup_disc_node
                                                                (vport, Did);
                                        }
                                        else {
                                                lpfc_debugfs_disc_trc(vport,
                                                LPFC_DISC_TRC_CT,
                                                "Skip2 GID_FTrsp: "
                                                "did:x%x flg:x%x cnt:%d",
                                                Did, vport->fc_flag,
                                                vport->fc_rscn_id_cnt);

                                                lpfc_printf_vlog(vport,
                                                        KERN_INFO,
                                                        LOG_DISCOVERY,
                                                        "0245 Skip x%x "
                                                        "NameServer Rsp Data: "
                                                        "x%x x%x\n",
                                                        Did, vport->fc_flag,
                                                        vport->fc_rscn_id_cnt);
                                        }
                                }
                        }
                        if (CTentry & (be32_to_cpu(SLI_CT_LAST_ENTRY)))
                                goto nsout1;
                        Cnt -= sizeof (uint32_t);
                }
                ctptr = NULL;

        }

nsout1:
        list_del(&head);
        return 0;
}

static void
lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
        IOCB_t *irsp;
        struct lpfc_dmabuf *bmp;
        struct lpfc_dmabuf *outp;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_nodelist *ndlp;
        int rc;

        /* First save ndlp, before we overwrite it */
        ndlp = cmdiocb->context_un.ndlp;

        /* we pass cmdiocb to state machine which needs rspiocb as well */
        cmdiocb->context_un.rsp_iocb = rspiocb;

        outp = (struct lpfc_dmabuf *) cmdiocb->context2;
        bmp = (struct lpfc_dmabuf *) cmdiocb->context3;
        irsp = &rspiocb->iocb;

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                 "GID_FT cmpl:     status:x%x/x%x rtry:%d",
                irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_ns_retry);

        /* Don't bother processing response if vport is being torn down. */
        if (vport->load_flag & FC_UNLOADING) {
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                goto out;
        }

        if (lpfc_els_chk_latt(vport)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0216 Link event during NS query\n");
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                goto out;
        }
        if (lpfc_error_lost_link(irsp)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0226 NS query failed due to link event\n");
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                goto out;
        }
        if (irsp->ulpStatus) {
                /* Check for retry */
                if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                        if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
                            (irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
                            IOERR_NO_RESOURCES)
                                vport->fc_ns_retry++;

                        /* CT command is being retried */
                        rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
                                         vport->fc_ns_retry, 0);
                        if (rc == 0)
                                goto out;
                }
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
                                 "0257 GID_FT Query error: 0x%x 0x%x\n",
                                 irsp->ulpStatus, vport->fc_ns_retry);
        } else {
                /* Good status, continue checking */
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) {
                        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                         "0208 NameServer Rsp Data: x%x\n",
                                         vport->fc_flag);
                        lpfc_ns_rsp(vport, outp,
                                    (uint32_t) (irsp->un.genreq64.bdl.bdeSize));
                } else if (CTrsp->CommandResponse.bits.CmdRsp ==
                           be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
                        /* NameServer Rsp Error */
                        if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
                            && (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
                                lpfc_printf_vlog(vport, KERN_INFO,
                                        LOG_DISCOVERY,
                                        "0269 No NameServer Entries "
                                        "Data: x%x x%x x%x x%x\n",
                                        CTrsp->CommandResponse.bits.CmdRsp,
                                        (uint32_t) CTrsp->ReasonCode,
                                        (uint32_t) CTrsp->Explanation,
                                        vport->fc_flag);

                                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "GID_FT no entry  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t) CTrsp->ReasonCode,
                                (uint32_t) CTrsp->Explanation);
                        } else {
                                lpfc_printf_vlog(vport, KERN_INFO,
                                        LOG_DISCOVERY,
                                        "0240 NameServer Rsp Error "
                                        "Data: x%x x%x x%x x%x\n",
                                        CTrsp->CommandResponse.bits.CmdRsp,
                                        (uint32_t) CTrsp->ReasonCode,
                                        (uint32_t) CTrsp->Explanation,
                                        vport->fc_flag);

                                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "GID_FT rsp err1  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t) CTrsp->ReasonCode,
                                (uint32_t) CTrsp->Explanation);
                        }


                } else {
                        /* NameServer Rsp Error */
                        lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
                                        "0241 NameServer Rsp Error "
                                        "Data: x%x x%x x%x x%x\n",
                                        CTrsp->CommandResponse.bits.CmdRsp,
                                        (uint32_t) CTrsp->ReasonCode,
                                        (uint32_t) CTrsp->Explanation,
                                        vport->fc_flag);

                        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "GID_FT rsp err2  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t) CTrsp->ReasonCode,
                                (uint32_t) CTrsp->Explanation);
                }
        }
        /* Link up / RSCN discovery */
        if (vport->num_disc_nodes == 0) {
                /*
                 * The driver has cycled through all Nports in the RSCN payload.
                 * Complete the handling by cleaning up and marking the
                 * current driver state.
                 */
                if (vport->port_state >= LPFC_DISC_AUTH) {
                        if (vport->fc_flag & FC_RSCN_MODE) {
                                lpfc_els_flush_rscn(vport);
                                spin_lock_irq(shost->host_lock);
                                vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
                                spin_unlock_irq(shost->host_lock);
                        }
                        else
                                lpfc_els_flush_rscn(vport);
                }

                lpfc_disc_start(vport);
        }
out:
        cmdiocb->context_un.ndlp = ndlp; /* Now restore ndlp for free */
        lpfc_ct_free_iocb(phba, cmdiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_gff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_dmabuf *inp = (struct lpfc_dmabuf *) cmdiocb->context1;
        struct lpfc_dmabuf *outp = (struct lpfc_dmabuf *) cmdiocb->context2;
        struct lpfc_sli_ct_request *CTrsp;
        int did, rc, retry;
        uint8_t fbits;
        struct lpfc_nodelist *ndlp;

        did = ((struct lpfc_sli_ct_request *) inp->virt)->un.gff.PortId;
        did = be32_to_cpu(did);

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                "GFF_ID cmpl:     status:x%x/x%x did:x%x",
                irsp->ulpStatus, irsp->un.ulpWord[4], did);

        if (irsp->ulpStatus == IOSTAT_SUCCESS) {
                /* Good status, continue checking */
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                fbits = CTrsp->un.gff_acc.fbits[FCP_TYPE_FEATURE_OFFSET];

                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) {
                        if ((fbits & FC4_FEATURE_INIT) &&
                            !(fbits & FC4_FEATURE_TARGET)) {
                                lpfc_printf_vlog(vport, KERN_INFO,
                                                 LOG_DISCOVERY,
                                                 "0270 Skip x%x GFF "
                                                 "NameServer Rsp Data: (init) "
                                                 "x%x x%x\n", did, fbits,
                                                 vport->fc_rscn_id_cnt);
                                goto out;
                        }
                }
        }
        else {
                /* Check for retry */
                if (cmdiocb->retry < LPFC_MAX_NS_RETRY) {
                        retry = 1;
                        if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
                                switch ((irsp->un.ulpWord[4] &
                                        IOERR_PARAM_MASK)) {

                                case IOERR_NO_RESOURCES:
                                        /* We don't increment the retry
                                         * count for this case.
                                         */
                                        break;
                                case IOERR_LINK_DOWN:
                                case IOERR_SLI_ABORTED:
                                case IOERR_SLI_DOWN:
                                        retry = 0;
                                        break;
                                default:
                                        cmdiocb->retry++;
                                }
                        }
                        else
                                cmdiocb->retry++;

                        if (retry) {
                                /* CT command is being retried */
                                rc = lpfc_ns_cmd(vport, SLI_CTNS_GFF_ID,
                                         cmdiocb->retry, did);
                                if (rc == 0) {
                                        /* success */
                                        lpfc_ct_free_iocb(phba, cmdiocb);
                                        return;
                                }
                        }
                }
                lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
                                 "0267 NameServer GFF Rsp "
                                 "x%x Error (%d %d) Data: x%x x%x\n",
                                 did, irsp->ulpStatus, irsp->un.ulpWord[4],
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
        }

        /* This is a target port, unregistered port, or the GFF_ID failed */
        ndlp = lpfc_setup_disc_node(vport, did);
        if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0242 Process x%x GFF "
                                 "NameServer Rsp Data: x%x x%x x%x\n",
                                 did, ndlp->nlp_flag, vport->fc_flag,
                                 vport->fc_rscn_id_cnt);
        } else {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0243 Skip x%x GFF "
                                 "NameServer Rsp Data: x%x x%x\n", did,
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
        }
out:
        /* Link up / RSCN discovery */
        if (vport->num_disc_nodes)
                vport->num_disc_nodes--;
        if (vport->num_disc_nodes == 0) {
                /*
                 * The driver has cycled through all Nports in the RSCN payload.
                 * Complete the handling by cleaning up and marking the
                 * current driver state.
                 */
                if (vport->port_state >= LPFC_DISC_AUTH) {
                        if (vport->fc_flag & FC_RSCN_MODE) {
                                lpfc_els_flush_rscn(vport);
                                spin_lock_irq(shost->host_lock);
                                vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
                                spin_unlock_irq(shost->host_lock);
                        }
                        else
                                lpfc_els_flush_rscn(vport);
                }
                lpfc_disc_start(vport);
        }
        lpfc_ct_free_iocb(phba, cmdiocb);
        return;
}


static void
lpfc_cmpl_ct(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
             struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct lpfc_dmabuf *inp;
        struct lpfc_dmabuf *outp;
        IOCB_t *irsp;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_nodelist *ndlp;
        int cmdcode, rc;
        uint8_t retry;
        uint32_t latt;

        /* First save ndlp, before we overwrite it */
        ndlp = cmdiocb->context_un.ndlp;

        /* we pass cmdiocb to state machine which needs rspiocb as well */
        cmdiocb->context_un.rsp_iocb = rspiocb;

        inp = (struct lpfc_dmabuf *) cmdiocb->context1;
        outp = (struct lpfc_dmabuf *) cmdiocb->context2;
        irsp = &rspiocb->iocb;

        cmdcode = be16_to_cpu(((struct lpfc_sli_ct_request *) inp->virt)->
                                        CommandResponse.bits.CmdRsp);
        CTrsp = (struct lpfc_sli_ct_request *) outp->virt;

        latt = lpfc_els_chk_latt(vport);

        /* RFT request completes status <ulpStatus> CmdRsp <CmdRsp> */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0209 CT Request completes, latt %d, "
                         "ulpStatus x%x CmdRsp x%x, Context x%x, Tag x%x\n",
                         latt, irsp->ulpStatus,
                         CTrsp->CommandResponse.bits.CmdRsp,
                         cmdiocb->iocb.ulpContext, cmdiocb->iocb.ulpIoTag);

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                "CT cmd cmpl:     status:x%x/x%x cmd:x%x",
                irsp->ulpStatus, irsp->un.ulpWord[4], cmdcode);

        if (irsp->ulpStatus) {
                lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
                                 "0268 NS cmd %x Error (%d %d)\n",
                                 cmdcode, irsp->ulpStatus, irsp->un.ulpWord[4]);

                if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
                        (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
                          IOERR_SLI_DOWN) ||
                         ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
                          IOERR_SLI_ABORTED)))
                        goto out;

                retry = cmdiocb->retry;
                if (retry >= LPFC_MAX_NS_RETRY)
                        goto out;

                retry++;
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0250 Retrying NS cmd %x\n", cmdcode);
                rc = lpfc_ns_cmd(vport, cmdcode, retry, 0);
                if (rc == 0)
                        goto out;
        }

out:
        cmdiocb->context_un.ndlp = ndlp; /* Now restore ndlp for free */
        lpfc_ct_free_iocb(phba, cmdiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_rft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_vport *vport = cmdiocb->vport;

        if (irsp->ulpStatus == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = (struct lpfc_dmabuf *) cmdiocb->context2;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC))
                        vport->ct_flags |= FC_CT_RFT_ID;
        }
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_rnn_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_vport *vport = cmdiocb->vport;

        if (irsp->ulpStatus == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = (struct lpfc_dmabuf *) cmdiocb->context2;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC))
                        vport->ct_flags |= FC_CT_RNN_ID;
        }
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_rspn_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                         struct lpfc_iocbq *rspiocb)
{
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_vport *vport = cmdiocb->vport;

        if (irsp->ulpStatus == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = (struct lpfc_dmabuf *) cmdiocb->context2;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC))
                        vport->ct_flags |= FC_CT_RSPN_ID;
        }
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_rsnn_nn(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                         struct lpfc_iocbq *rspiocb)
{
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_vport *vport = cmdiocb->vport;

        if (irsp->ulpStatus == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = (struct lpfc_dmabuf *) cmdiocb->context2;

                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC))
                        vport->ct_flags |= FC_CT_RSNN_NN;
        }
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_da_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;

        /* even if it fails we will act as though it succeeded. */
        vport->ct_flags = 0;
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
        return;
}

static void
lpfc_cmpl_ct_cmd_rff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_vport *vport = cmdiocb->vport;

        if (irsp->ulpStatus == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = (struct lpfc_dmabuf *) cmdiocb->context2;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC))
                        vport->ct_flags |= FC_CT_RFF_ID;
        }
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
        return;
}

int
lpfc_vport_symbolic_port_name(struct lpfc_vport *vport, char *symbol,
        size_t size)
{
        int n;
        uint8_t *wwn = vport->phba->wwpn;

        n = snprintf(symbol, size,
                     "Emulex PPN-%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
                     wwn[0], wwn[1], wwn[2], wwn[3],
                     wwn[4], wwn[5], wwn[6], wwn[7]);

        if (vport->port_type == LPFC_PHYSICAL_PORT)
                return n;

        if (n < size)
                n += snprintf(symbol + n, size - n, " VPort-%d", vport->vpi);

        if (n < size &&
            strlen(vport->fc_vport->symbolic_name))
                n += snprintf(symbol + n, size - n, " VName-%s",
                              vport->fc_vport->symbolic_name);
        return n;
}

int
lpfc_vport_symbolic_node_name(struct lpfc_vport *vport, char *symbol,
        size_t size)
{
        char fwrev[FW_REV_STR_SIZE];
        int n;

        lpfc_decode_firmware_rev(vport->phba, fwrev, 0);

        n = snprintf(symbol, size, "Emulex %s FV%s DV%s",
                vport->phba->ModelName, fwrev, lpfc_release_version);
        return n;
}

/*
 * lpfc_ns_cmd
 * Description:
 *    Issue Cmd to NameServer
 *       SLI_CTNS_GID_FT
 *       LI_CTNS_RFT_ID
 */
int
lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
            uint8_t retry, uint32_t context)
{
        struct lpfc_nodelist * ndlp;
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_dmabuf *mp, *bmp;
        struct lpfc_sli_ct_request *CtReq;
        struct ulp_bde64 *bpl;
        void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
                      struct lpfc_iocbq *) = NULL;
        uint32_t rsp_size = 1024;
        size_t   size;
        int rc = 0;

        ndlp = lpfc_findnode_did(vport, NameServer_DID);
        if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)
            || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) {
                rc=1;
                goto ns_cmd_exit;
        }

        /* fill in BDEs for command */
        /* Allocate buffer for command payload */
        mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
        if (!mp) {
                rc=2;
                goto ns_cmd_exit;
        }

        INIT_LIST_HEAD(&mp->list);
        mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
        if (!mp->virt) {
                rc=3;
                goto ns_cmd_free_mp;
        }

        /* Allocate buffer for Buffer ptr list */
        bmp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
        if (!bmp) {
                rc=4;
                goto ns_cmd_free_mpvirt;
        }

        INIT_LIST_HEAD(&bmp->list);
        bmp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(bmp->phys));
        if (!bmp->virt) {
                rc=5;
                goto ns_cmd_free_bmp;
        }

        /* NameServer Req */
        lpfc_printf_vlog(vport, KERN_INFO ,LOG_DISCOVERY,
                         "0236 NameServer Req Data: x%x x%x x%x\n",
                         cmdcode, vport->fc_flag, vport->fc_rscn_id_cnt);

        bpl = (struct ulp_bde64 *) bmp->virt;
        memset(bpl, 0, sizeof(struct ulp_bde64));
        bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) );
        bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) );
        bpl->tus.f.bdeFlags = 0;
        if (cmdcode == SLI_CTNS_GID_FT)
                bpl->tus.f.bdeSize = GID_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_GFF_ID)
                bpl->tus.f.bdeSize = GFF_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_RFT_ID)
                bpl->tus.f.bdeSize = RFT_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_RNN_ID)
                bpl->tus.f.bdeSize = RNN_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_RSPN_ID)
                bpl->tus.f.bdeSize = RSPN_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_RSNN_NN)
                bpl->tus.f.bdeSize = RSNN_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_DA_ID)
                bpl->tus.f.bdeSize = DA_ID_REQUEST_SZ;
        else if (cmdcode == SLI_CTNS_RFF_ID)
                bpl->tus.f.bdeSize = RFF_REQUEST_SZ;
        else
                bpl->tus.f.bdeSize = 0;
        bpl->tus.w = le32_to_cpu(bpl->tus.w);

        CtReq = (struct lpfc_sli_ct_request *) mp->virt;
        memset(CtReq, 0, sizeof (struct lpfc_sli_ct_request));
        CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
        CtReq->RevisionId.bits.InId = 0;
        CtReq->FsType = SLI_CT_DIRECTORY_SERVICE;
        CtReq->FsSubType = SLI_CT_DIRECTORY_NAME_SERVER;
        CtReq->CommandResponse.bits.Size = 0;
        switch (cmdcode) {
        case SLI_CTNS_GID_FT:
                CtReq->CommandResponse.bits.CmdRsp =
                    be16_to_cpu(SLI_CTNS_GID_FT);
                CtReq->un.gid.Fc4Type = SLI_CTPT_FCP;
                if (vport->port_state < LPFC_NS_QRY)
                        vport->port_state = LPFC_NS_QRY;
                lpfc_set_disctmo(vport);
                cmpl = lpfc_cmpl_ct_cmd_gid_ft;
                rsp_size = FC_MAX_NS_RSP;
                break;

        case SLI_CTNS_GFF_ID:
                CtReq->CommandResponse.bits.CmdRsp =
                        be16_to_cpu(SLI_CTNS_GFF_ID);
                CtReq->un.gff.PortId = cpu_to_be32(context);
                cmpl = lpfc_cmpl_ct_cmd_gff_id;
                break;

        case SLI_CTNS_RFT_ID:
                vport->ct_flags &= ~FC_CT_RFT_ID;
                CtReq->CommandResponse.bits.CmdRsp =
                    be16_to_cpu(SLI_CTNS_RFT_ID);
                CtReq->un.rft.PortId = cpu_to_be32(vport->fc_myDID);
                CtReq->un.rft.fcpReg = 1;
                cmpl = lpfc_cmpl_ct_cmd_rft_id;
                break;

        case SLI_CTNS_RNN_ID:
                vport->ct_flags &= ~FC_CT_RNN_ID;
                CtReq->CommandResponse.bits.CmdRsp =
                    be16_to_cpu(SLI_CTNS_RNN_ID);
                CtReq->un.rnn.PortId = cpu_to_be32(vport->fc_myDID);
                memcpy(CtReq->un.rnn.wwnn,  &vport->fc_nodename,
                       sizeof (struct lpfc_name));
                cmpl = lpfc_cmpl_ct_cmd_rnn_id;
                break;

        case SLI_CTNS_RSPN_ID:
                vport->ct_flags &= ~FC_CT_RSPN_ID;
                CtReq->CommandResponse.bits.CmdRsp =
                    be16_to_cpu(SLI_CTNS_RSPN_ID);
                CtReq->un.rspn.PortId = cpu_to_be32(vport->fc_myDID);
                size = sizeof(CtReq->un.rspn.symbname);
                CtReq->un.rspn.len =
                        lpfc_vport_symbolic_port_name(vport,
                        CtReq->un.rspn.symbname, size);
                cmpl = lpfc_cmpl_ct_cmd_rspn_id;
                break;
        case SLI_CTNS_RSNN_NN:
                vport->ct_flags &= ~FC_CT_RSNN_NN;
                CtReq->CommandResponse.bits.CmdRsp =
                    be16_to_cpu(SLI_CTNS_RSNN_NN);
                memcpy(CtReq->un.rsnn.wwnn, &vport->fc_nodename,
                       sizeof (struct lpfc_name));
                size = sizeof(CtReq->un.rsnn.symbname);
                CtReq->un.rsnn.len =
                        lpfc_vport_symbolic_node_name(vport,
                        CtReq->un.rsnn.symbname, size);
                cmpl = lpfc_cmpl_ct_cmd_rsnn_nn;
                break;
        case SLI_CTNS_DA_ID:
                /* Implement DA_ID Nameserver request */
                CtReq->CommandResponse.bits.CmdRsp =
                        be16_to_cpu(SLI_CTNS_DA_ID);
                CtReq->un.da_id.port_id = cpu_to_be32(vport->fc_myDID);
                cmpl = lpfc_cmpl_ct_cmd_da_id;
                break;
        case SLI_CTNS_RFF_ID:
                vport->ct_flags &= ~FC_CT_RFF_ID;
                CtReq->CommandResponse.bits.CmdRsp =
                    be16_to_cpu(SLI_CTNS_RFF_ID);
                CtReq->un.rff.PortId = cpu_to_be32(vport->fc_myDID);
                CtReq->un.rff.fbits = FC4_FEATURE_INIT;
                CtReq->un.rff.type_code = FC_TYPE_FCP;
                cmpl = lpfc_cmpl_ct_cmd_rff_id;
                break;
        }
        /* The lpfc_ct_cmd/lpfc_get_req shall increment ndlp reference count
         * to hold ndlp reference for the corresponding callback function.
         */
        if (!lpfc_ct_cmd(vport, mp, bmp, ndlp, cmpl, rsp_size, retry)) {
                /* On success, The cmpl function will free the buffers */
                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                        "Issue CT cmd:    cmd:x%x did:x%x",
                        cmdcode, ndlp->nlp_DID, 0);
                return 0;
        }
        rc=6;

        /* Decrement ndlp reference count to release ndlp reference held
         * for the failed command's callback function.
         */
        lpfc_nlp_put(ndlp);

        lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
ns_cmd_free_bmp:
        kfree(bmp);
ns_cmd_free_mpvirt:
        lpfc_mbuf_free(phba, mp->virt, mp->phys);
ns_cmd_free_mp:
        kfree(mp);
ns_cmd_exit:
        lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
                         "0266 Issue NameServer Req x%x err %d Data: x%x x%x\n",
                         cmdcode, rc, vport->fc_flag, vport->fc_rscn_id_cnt);
        return 1;
}

static void
lpfc_cmpl_ct_cmd_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                      struct lpfc_iocbq * rspiocb)
{
        struct lpfc_dmabuf *inp = cmdiocb->context1;
        struct lpfc_dmabuf *outp = cmdiocb->context2;
        struct lpfc_sli_ct_request *CTrsp = outp->virt;
        struct lpfc_sli_ct_request *CTcmd = inp->virt;
        struct lpfc_nodelist *ndlp;
        uint16_t fdmi_cmd = CTcmd->CommandResponse.bits.CmdRsp;
        uint16_t fdmi_rsp = CTrsp->CommandResponse.bits.CmdRsp;
        struct lpfc_vport *vport = cmdiocb->vport;
        IOCB_t *irsp = &rspiocb->iocb;
        uint32_t latt;

        latt = lpfc_els_chk_latt(vport);

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                "FDMI cmpl:       status:x%x/x%x latt:%d",
                irsp->ulpStatus, irsp->un.ulpWord[4], latt);

        if (latt || irsp->ulpStatus) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0229 FDMI cmd %04x failed, latt = %d "
                                 "ulpStatus: x%x, rid x%x\n",
                                 be16_to_cpu(fdmi_cmd), latt, irsp->ulpStatus,
                                 irsp->un.ulpWord[4]);
                lpfc_ct_free_iocb(phba, cmdiocb);
                return;
        }

        ndlp = lpfc_findnode_did(vport, FDMI_DID);
        if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
                goto fail_out;

        if (fdmi_rsp == be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
                /* FDMI rsp failed */
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0220 FDMI rsp failed Data: x%x\n",
                                 be16_to_cpu(fdmi_cmd));
        }

        switch (be16_to_cpu(fdmi_cmd)) {
        case SLI_MGMT_RHBA:
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA);
                break;

        case SLI_MGMT_RPA:
                break;

        case SLI_MGMT_DHBA:
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT);
                break;

        case SLI_MGMT_DPRT:
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RHBA);
                break;
        }

fail_out:
        lpfc_ct_free_iocb(phba, cmdiocb);
        return;
}

int
lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, int cmdcode)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_dmabuf *mp, *bmp;
        struct lpfc_sli_ct_request *CtReq;
        struct ulp_bde64 *bpl;
        uint32_t size;
        REG_HBA *rh;
        PORT_ENTRY *pe;
        REG_PORT_ATTRIBUTE *pab;
        ATTRIBUTE_BLOCK *ab;
        ATTRIBUTE_ENTRY *ae;
        void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
                      struct lpfc_iocbq *);


        /* fill in BDEs for command */
        /* Allocate buffer for command payload */
        mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
        if (!mp)
                goto fdmi_cmd_exit;

        mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys));
        if (!mp->virt)
                goto fdmi_cmd_free_mp;

        /* Allocate buffer for Buffer ptr list */
        bmp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
        if (!bmp)
                goto fdmi_cmd_free_mpvirt;

        bmp->virt = lpfc_mbuf_alloc(phba, 0, &(bmp->phys));
        if (!bmp->virt)
                goto fdmi_cmd_free_bmp;

        INIT_LIST_HEAD(&mp->list);
        INIT_LIST_HEAD(&bmp->list);

        /* FDMI request */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0218 FDMI Request Data: x%x x%x x%x\n",
                         vport->fc_flag, vport->port_state, cmdcode);
        CtReq = (struct lpfc_sli_ct_request *) mp->virt;

        memset(CtReq, 0, sizeof(struct lpfc_sli_ct_request));
        CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
        CtReq->RevisionId.bits.InId = 0;

        CtReq->FsType = SLI_CT_MANAGEMENT_SERVICE;
        CtReq->FsSubType = SLI_CT_FDMI_Subtypes;
        size = 0;

        switch (cmdcode) {
        case SLI_MGMT_RHBA:
                {
                        lpfc_vpd_t *vp = &phba->vpd;
                        uint32_t i, j, incr;
                        int len;

                        CtReq->CommandResponse.bits.CmdRsp =
                            be16_to_cpu(SLI_MGMT_RHBA);
                        CtReq->CommandResponse.bits.Size = 0;
                        rh = (REG_HBA *) & CtReq->un.PortID;
                        memcpy(&rh->hi.PortName, &vport->fc_sparam.portName,
                               sizeof (struct lpfc_name));
                        /* One entry (port) per adapter */
                        rh->rpl.EntryCnt = be32_to_cpu(1);
                        memcpy(&rh->rpl.pe, &vport->fc_sparam.portName,
                               sizeof (struct lpfc_name));

                        /* point to the HBA attribute block */
                        size = 2 * sizeof (struct lpfc_name) + FOURBYTES;
                        ab = (ATTRIBUTE_BLOCK *) ((uint8_t *) rh + size);
                        ab->EntryCnt = 0;

                        /* Point to the beginning of the first HBA attribute
                           entry */
                        /* #1 HBA attribute entry */
                        size += FOURBYTES;
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(NODE_NAME);
                        ae->ad.bits.AttrLen =  be16_to_cpu(FOURBYTES
                                                + sizeof (struct lpfc_name));
                        memcpy(&ae->un.NodeName, &vport->fc_sparam.nodeName,
                               sizeof (struct lpfc_name));
                        ab->EntryCnt++;
                        size += FOURBYTES + sizeof (struct lpfc_name);

                        /* #2 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(MANUFACTURER);
                        strcpy(ae->un.Manufacturer, "Emulex Corporation");
                        len = strlen(ae->un.Manufacturer);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #3 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(SERIAL_NUMBER);
                        strcpy(ae->un.SerialNumber, phba->SerialNumber);
                        len = strlen(ae->un.SerialNumber);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #4 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(MODEL);
                        strcpy(ae->un.Model, phba->ModelName);
                        len = strlen(ae->un.Model);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #5 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(MODEL_DESCRIPTION);
                        strcpy(ae->un.ModelDescription, phba->ModelDesc);
                        len = strlen(ae->un.ModelDescription);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #6 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(HARDWARE_VERSION);
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 8);
                        /* Convert JEDEC ID to ascii for hardware version */
                        incr = vp->rev.biuRev;
                        for (i = 0; i < 8; i++) {
                                j = (incr & 0xf);
                                if (j <= 9)
                                        ae->un.HardwareVersion[7 - i] =
                                            (char)((uint8_t) 0x30 +
                                                   (uint8_t) j);
                                else
                                        ae->un.HardwareVersion[7 - i] =
                                            (char)((uint8_t) 0x61 +
                                                   (uint8_t) (j - 10));
                                incr = (incr >> 4);
                        }
                        ab->EntryCnt++;
                        size += FOURBYTES + 8;

                        /* #7 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(DRIVER_VERSION);
                        strcpy(ae->un.DriverVersion, lpfc_release_version);
                        len = strlen(ae->un.DriverVersion);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #8 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(OPTION_ROM_VERSION);
                        strcpy(ae->un.OptionROMVersion, phba->OptionROMVersion);
                        len = strlen(ae->un.OptionROMVersion);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #9 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(FIRMWARE_VERSION);
                        lpfc_decode_firmware_rev(phba, ae->un.FirmwareVersion,
                                1);
                        len = strlen(ae->un.FirmwareVersion);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #10 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(OS_NAME_VERSION);
                        sprintf(ae->un.OsNameVersion, "%s %s %s",
                                init_utsname()->sysname,
                                init_utsname()->release,
                                init_utsname()->version);
                        len = strlen(ae->un.OsNameVersion);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        ab->EntryCnt++;
                        size += FOURBYTES + len;

                        /* #11 HBA attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
                        ae->ad.bits.AttrType = be16_to_cpu(MAX_CT_PAYLOAD_LEN);
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 4);
                        ae->un.MaxCTPayloadLen = (65 * 4096);
                        ab->EntryCnt++;
                        size += FOURBYTES + 4;

                        ab->EntryCnt = be32_to_cpu(ab->EntryCnt);
                        /* Total size */
                        size = GID_REQUEST_SZ - 4 + size;
                }
                break;

        case SLI_MGMT_RPA:
                {
                        lpfc_vpd_t *vp;
                        struct serv_parm *hsp;
                        int len;

                        vp = &phba->vpd;

                        CtReq->CommandResponse.bits.CmdRsp =
                            be16_to_cpu(SLI_MGMT_RPA);
                        CtReq->CommandResponse.bits.Size = 0;
                        pab = (REG_PORT_ATTRIBUTE *) & CtReq->un.PortID;
                        size = sizeof (struct lpfc_name) + FOURBYTES;
                        memcpy((uint8_t *) & pab->PortName,
                               (uint8_t *) & vport->fc_sparam.portName,
                               sizeof (struct lpfc_name));
                        pab->ab.EntryCnt = 0;

                        /* #1 Port attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab + size);
                        ae->ad.bits.AttrType = be16_to_cpu(SUPPORTED_FC4_TYPES);
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 32);
                        ae->un.SupportFC4Types[2] = 1;
                        ae->un.SupportFC4Types[7] = 1;
                        pab->ab.EntryCnt++;
                        size += FOURBYTES + 32;

                        /* #2 Port attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab + size);
                        ae->ad.bits.AttrType = be16_to_cpu(SUPPORTED_SPEED);
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 4);

                        ae->un.SupportSpeed = 0;
                        if (phba->lmt & LMT_16Gb)
                                ae->un.SupportSpeed |= HBA_PORTSPEED_16GBIT;
                        if (phba->lmt & LMT_10Gb)
                                ae->un.SupportSpeed |= HBA_PORTSPEED_10GBIT;
                        if (phba->lmt & LMT_8Gb)
                                ae->un.SupportSpeed |= HBA_PORTSPEED_8GBIT;
                        if (phba->lmt & LMT_4Gb)
                                ae->un.SupportSpeed |= HBA_PORTSPEED_4GBIT;
                        if (phba->lmt & LMT_2Gb)
                                ae->un.SupportSpeed |= HBA_PORTSPEED_2GBIT;
                        if (phba->lmt & LMT_1Gb)
                                ae->un.SupportSpeed |= HBA_PORTSPEED_1GBIT;

                        pab->ab.EntryCnt++;
                        size += FOURBYTES + 4;

                        /* #3 Port attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab + size);
                        ae->ad.bits.AttrType = be16_to_cpu(PORT_SPEED);
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 4);
                        switch(phba->fc_linkspeed) {
                        case LPFC_LINK_SPEED_1GHZ:
                                ae->un.PortSpeed = HBA_PORTSPEED_1GBIT;
                                break;
                        case LPFC_LINK_SPEED_2GHZ:
                                ae->un.PortSpeed = HBA_PORTSPEED_2GBIT;
                                break;
                        case LPFC_LINK_SPEED_4GHZ:
                                ae->un.PortSpeed = HBA_PORTSPEED_4GBIT;
                                break;
                        case LPFC_LINK_SPEED_8GHZ:
                                ae->un.PortSpeed = HBA_PORTSPEED_8GBIT;
                                break;
                        case LPFC_LINK_SPEED_10GHZ:
                                ae->un.PortSpeed = HBA_PORTSPEED_10GBIT;
                                break;
                        case LPFC_LINK_SPEED_16GHZ:
                                ae->un.PortSpeed = HBA_PORTSPEED_16GBIT;
                                break;
                        default:
                                ae->un.PortSpeed = HBA_PORTSPEED_UNKNOWN;
                                break;
                        }
                        pab->ab.EntryCnt++;
                        size += FOURBYTES + 4;

                        /* #4 Port attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab + size);
                        ae->ad.bits.AttrType = be16_to_cpu(MAX_FRAME_SIZE);
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 4);
                        hsp = (struct serv_parm *) & vport->fc_sparam;
                        ae->un.MaxFrameSize =
                            (((uint32_t) hsp->cmn.
                              bbRcvSizeMsb) << 8) | (uint32_t) hsp->cmn.
                            bbRcvSizeLsb;
                        pab->ab.EntryCnt++;
                        size += FOURBYTES + 4;

                        /* #5 Port attribute entry */
                        ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab + size);
                        ae->ad.bits.AttrType = be16_to_cpu(OS_DEVICE_NAME);
                        strcpy((char *)ae->un.OsDeviceName, LPFC_DRIVER_NAME);
                        len = strlen((char *)ae->un.OsDeviceName);
                        len += (len & 3) ? (4 - (len & 3)) : 4;
                        ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
                        pab->ab.EntryCnt++;
                        size += FOURBYTES + len;

                        if (vport->cfg_fdmi_on == 2) {
                                /* #6 Port attribute entry */
                                ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab +
                                                          size);
                                ae->ad.bits.AttrType = be16_to_cpu(HOST_NAME);
                                sprintf(ae->un.HostName, "%s",
                                        init_utsname()->nodename);
                                len = strlen(ae->un.HostName);
                                len += (len & 3) ? (4 - (len & 3)) : 4;
                                ae->ad.bits.AttrLen =
                                    be16_to_cpu(FOURBYTES + len);
                                pab->ab.EntryCnt++;
                                size += FOURBYTES + len;
                        }

                        pab->ab.EntryCnt = be32_to_cpu(pab->ab.EntryCnt);
                        /* Total size */
                        size = GID_REQUEST_SZ - 4 + size;
                }
                break;

        case SLI_MGMT_DHBA:
                CtReq->CommandResponse.bits.CmdRsp = be16_to_cpu(SLI_MGMT_DHBA);
                CtReq->CommandResponse.bits.Size = 0;
                pe = (PORT_ENTRY *) & CtReq->un.PortID;
                memcpy((uint8_t *) & pe->PortName,
                       (uint8_t *) & vport->fc_sparam.portName,
                       sizeof (struct lpfc_name));
                size = GID_REQUEST_SZ - 4 + sizeof (struct lpfc_name);
                break;

        case SLI_MGMT_DPRT:
                CtReq->CommandResponse.bits.CmdRsp = be16_to_cpu(SLI_MGMT_DPRT);
                CtReq->CommandResponse.bits.Size = 0;
                pe = (PORT_ENTRY *) & CtReq->un.PortID;
                memcpy((uint8_t *) & pe->PortName,
                       (uint8_t *) & vport->fc_sparam.portName,
                       sizeof (struct lpfc_name));
                size = GID_REQUEST_SZ - 4 + sizeof (struct lpfc_name);
                break;
        }

        bpl = (struct ulp_bde64 *) bmp->virt;
        bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) );
        bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) );
        bpl->tus.f.bdeFlags = 0;
        bpl->tus.f.bdeSize = size;
        bpl->tus.w = le32_to_cpu(bpl->tus.w);

        cmpl = lpfc_cmpl_ct_cmd_fdmi;

        /* The lpfc_ct_cmd/lpfc_get_req shall increment ndlp reference count
         * to hold ndlp reference for the corresponding callback function.
         */
        if (!lpfc_ct_cmd(vport, mp, bmp, ndlp, cmpl, FC_MAX_NS_RSP, 0))
                return 0;

        /* Decrement ndlp reference count to release ndlp reference held
         * for the failed command's callback function.
         */
        lpfc_nlp_put(ndlp);

        lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
fdmi_cmd_free_bmp:
        kfree(bmp);
fdmi_cmd_free_mpvirt:
        lpfc_mbuf_free(phba, mp->virt, mp->phys);
fdmi_cmd_free_mp:
        kfree(mp);
fdmi_cmd_exit:
        /* Issue FDMI request failed */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0244 Issue FDMI request failed Data: x%x\n",
                         cmdcode);
        return 1;
}

/**
 * lpfc_delayed_disc_tmo - Timeout handler for delayed discovery timer.
 * @ptr - Context object of the timer.
 *
 * This function set the WORKER_DELAYED_DISC_TMO flag and wake up
 * the worker thread.
 **/
void
lpfc_delayed_disc_tmo(unsigned long ptr)
{
        struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
        struct lpfc_hba   *phba = vport->phba;
        uint32_t tmo_posted;
        unsigned long iflag;

        spin_lock_irqsave(&vport->work_port_lock, iflag);
        tmo_posted = vport->work_port_events & WORKER_DELAYED_DISC_TMO;
        if (!tmo_posted)
                vport->work_port_events |= WORKER_DELAYED_DISC_TMO;
        spin_unlock_irqrestore(&vport->work_port_lock, iflag);

        if (!tmo_posted)
                lpfc_worker_wake_up(phba);
        return;
}

/**
 * lpfc_delayed_disc_timeout_handler - Function called by worker thread to
 *      handle delayed discovery.
 * @vport: pointer to a host virtual N_Port data structure.
 *
 * This function start nport discovery of the vport.
 **/
void
lpfc_delayed_disc_timeout_handler(struct lpfc_vport *vport)
{
        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);

        spin_lock_irq(shost->host_lock);
        if (!(vport->fc_flag & FC_DISC_DELAYED)) {
                spin_unlock_irq(shost->host_lock);
                return;
        }
        vport->fc_flag &= ~FC_DISC_DELAYED;
        spin_unlock_irq(shost->host_lock);

        lpfc_do_scr_ns_plogi(vport->phba, vport);
}

void
lpfc_fdmi_tmo(unsigned long ptr)
{
        struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
        struct lpfc_hba   *phba = vport->phba;
        uint32_t tmo_posted;
        unsigned long iflag;

        spin_lock_irqsave(&vport->work_port_lock, iflag);
        tmo_posted = vport->work_port_events & WORKER_FDMI_TMO;
        if (!tmo_posted)
                vport->work_port_events |= WORKER_FDMI_TMO;
        spin_unlock_irqrestore(&vport->work_port_lock, iflag);

        if (!tmo_posted)
                lpfc_worker_wake_up(phba);
        return;
}

void
lpfc_fdmi_timeout_handler(struct lpfc_vport *vport)
{
        struct lpfc_nodelist *ndlp;

        ndlp = lpfc_findnode_did(vport, FDMI_DID);
        if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
                if (init_utsname()->nodename[0] != '\0')
                        lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
                else
                        mod_timer(&vport->fc_fdmitmo, jiffies +
                                  msecs_to_jiffies(1000 * 60));
        }
        return;
}

void
lpfc_decode_firmware_rev(struct lpfc_hba *phba, char *fwrevision, int flag)
{
        struct lpfc_sli *psli = &phba->sli;
        lpfc_vpd_t *vp = &phba->vpd;
        uint32_t b1, b2, b3, b4, i, rev;
        char c;
        uint32_t *ptr, str[4];
        uint8_t *fwname;

        if (phba->sli_rev == LPFC_SLI_REV4)
                snprintf(fwrevision, FW_REV_STR_SIZE, "%s", vp->rev.opFwName);
        else if (vp->rev.rBit) {
                if (psli->sli_flag & LPFC_SLI_ACTIVE)
                        rev = vp->rev.sli2FwRev;
                else
                        rev = vp->rev.sli1FwRev;

                b1 = (rev & 0x0000f000) >> 12;
                b2 = (rev & 0x00000f00) >> 8;
                b3 = (rev & 0x000000c0) >> 6;
                b4 = (rev & 0x00000030) >> 4;

                switch (b4) {
                case 0:
                        c = 'N';
                        break;
                case 1:
                        c = 'A';
                        break;
                case 2:
                        c = 'B';
                        break;
                case 3:
                        c = 'X';
                        break;
                default:
                        c = 0;
                        break;
                }
                b4 = (rev & 0x0000000f);

                if (psli->sli_flag & LPFC_SLI_ACTIVE)
                        fwname = vp->rev.sli2FwName;
                else
                        fwname = vp->rev.sli1FwName;

                for (i = 0; i < 16; i++)
                        if (fwname[i] == 0x20)
                                fwname[i] = 0;

                ptr = (uint32_t*)fwname;

                for (i = 0; i < 3; i++)
                        str[i] = be32_to_cpu(*ptr++);

                if (c == 0) {
                        if (flag)
                                sprintf(fwrevision, "%d.%d%d (%s)",
                                        b1, b2, b3, (char *)str);
                        else
                                sprintf(fwrevision, "%d.%d%d", b1,
                                        b2, b3);
                } else {
                        if (flag)
                                sprintf(fwrevision, "%d.%d%d%c%d (%s)",
                                        b1, b2, b3, c,
                                        b4, (char *)str);
                        else
                                sprintf(fwrevision, "%d.%d%d%c%d",
                                        b1, b2, b3, c, b4);
                }
        } else {
                rev = vp->rev.smFwRev;

                b1 = (rev & 0xff000000) >> 24;
                b2 = (rev & 0x00f00000) >> 20;
                b3 = (rev & 0x000f0000) >> 16;
                c  = (rev & 0x0000ff00) >> 8;
                b4 = (rev & 0x000000ff);

                sprintf(fwrevision, "%d.%d%d%c%d", b1, b2, b3, c, b4);
        }
        return;
}