/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2017-2025 Broadcom. All Rights Reserved. The term *
 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
 * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
 * EMULEX and SLI are trademarks of Emulex.                        *
 * www.broadcom.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.h"
#include "lpfc_scsi.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 - FC-GS-7 */
#define HBA_PORTSPEED_1GFC              0x00000001      /* 1G FC */
#define HBA_PORTSPEED_2GFC              0x00000002      /* 2G FC */
#define HBA_PORTSPEED_4GFC              0x00000008      /* 4G FC */
#define HBA_PORTSPEED_10GFC             0x00000004      /* 10G FC */
#define HBA_PORTSPEED_8GFC              0x00000010      /* 8G FC */
#define HBA_PORTSPEED_16GFC             0x00000020      /* 16G FC */
#define HBA_PORTSPEED_32GFC             0x00000040      /* 32G FC */
#define HBA_PORTSPEED_20GFC             0x00000080      /* 20G FC */
#define HBA_PORTSPEED_40GFC             0x00000100      /* 40G FC */
#define HBA_PORTSPEED_128GFC            0x00000200      /* 128G FC */
#define HBA_PORTSPEED_64GFC             0x00000400      /* 64G FC */
#define HBA_PORTSPEED_256GFC            0x00000800      /* 256G FC */
#define HBA_PORTSPEED_UNKNOWN           0x00008000      /* Unknown */
#define HBA_PORTSPEED_10GE              0x00010000      /* 10G E */
#define HBA_PORTSPEED_40GE              0x00020000      /* 40G E */
#define HBA_PORTSPEED_100GE             0x00040000      /* 100G E */
#define HBA_PORTSPEED_25GE              0x00080000      /* 25G E */
#define HBA_PORTSPEED_50GE              0x00100000      /* 50G E */
#define HBA_PORTSPEED_400GE             0x00200000      /* 400G E */

#define FOURBYTES       4


static char *lpfc_release_version = LPFC_DRIVER_VERSION;
static void
lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                      struct lpfc_iocbq *rspiocb);

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",
                                get_job_ulpstatus(phba, piocbq));
        }
        lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
                        "0145 Ignoring unsolicited CT HBQ Size:%d "
                        "status = x%x\n",
                        size, get_job_ulpstatus(phba, piocbq));
}

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);
}

/**
 * lpfc_ct_unsol_cmpl : Completion callback function for unsol ct commands
 * @phba : pointer to lpfc hba data structure.
 * @cmdiocb : pointer to lpfc command iocb data structure.
 * @rspiocb : pointer to lpfc response iocb data structure.
 *
 * This routine is the callback function for issuing unsol ct reject command.
 * The memory allocated in the reject command path is freed up here.
 **/
static void
lpfc_ct_unsol_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                   struct lpfc_iocbq *rspiocb)
{
        struct lpfc_nodelist *ndlp;
        struct lpfc_dmabuf *mp, *bmp;

        ndlp = cmdiocb->ndlp;
        if (ndlp)
                lpfc_nlp_put(ndlp);

        mp = cmdiocb->rsp_dmabuf;
        bmp = cmdiocb->bpl_dmabuf;
        if (mp) {
                lpfc_mbuf_free(phba, mp->virt, mp->phys);
                kfree(mp);
                cmdiocb->rsp_dmabuf = NULL;
        }

        if (bmp) {
                lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
                kfree(bmp);
                cmdiocb->bpl_dmabuf = NULL;
        }

        lpfc_sli_release_iocbq(phba, cmdiocb);
}

/**
 * lpfc_ct_reject_event - Issue reject for unhandled CT MIB commands
 * @ndlp: pointer to a node-list data structure.
 * @ct_req: pointer to the CT request data structure.
 * @ulp_context: context of received UNSOL CT command
 * @ox_id: ox_id of the UNSOL CT command
 *
 * This routine is invoked by the lpfc_ct_handle_mibreq routine for sending
 * a reject response. Reject response is sent for the unhandled commands.
 **/
static void
lpfc_ct_reject_event(struct lpfc_nodelist *ndlp,
                     struct lpfc_sli_ct_request *ct_req,
                     u16 ulp_context, u16 ox_id)
{
        struct lpfc_vport *vport = ndlp->vport;
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_sli_ct_request *ct_rsp;
        struct lpfc_iocbq *cmdiocbq = NULL;
        struct lpfc_dmabuf *bmp = NULL;
        struct lpfc_dmabuf *mp = NULL;
        struct ulp_bde64 *bpl;
        u8 rc = 0;
        u32 tmo;

        /* fill in BDEs for command */
        mp = kmalloc_obj(*mp);
        if (!mp) {
                rc = 1;
                goto ct_exit;
        }

        mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp->phys);
        if (!mp->virt) {
                rc = 2;
                goto ct_free_mp;
        }

        /* Allocate buffer for Buffer ptr list */
        bmp = kmalloc_obj(*bmp);
        if (!bmp) {
                rc = 3;
                goto ct_free_mpvirt;
        }

        bmp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &bmp->phys);
        if (!bmp->virt) {
                rc = 4;
                goto ct_free_bmp;
        }

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

        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 = BUFF_TYPE_BDE_64;
        bpl->tus.f.bdeSize = (LPFC_CT_PREAMBLE - 4);
        bpl->tus.w = le32_to_cpu(bpl->tus.w);

        ct_rsp = (struct lpfc_sli_ct_request *)mp->virt;
        memset(ct_rsp, 0, sizeof(struct lpfc_sli_ct_request));

        ct_rsp->RevisionId.bits.Revision = SLI_CT_REVISION;
        ct_rsp->RevisionId.bits.InId = 0;
        ct_rsp->FsType = ct_req->FsType;
        ct_rsp->FsSubType = ct_req->FsSubType;
        ct_rsp->CommandResponse.bits.Size = 0;
        ct_rsp->CommandResponse.bits.CmdRsp =
                cpu_to_be16(SLI_CT_RESPONSE_FS_RJT);
        ct_rsp->ReasonCode = SLI_CT_REQ_NOT_SUPPORTED;
        ct_rsp->Explanation = SLI_CT_NO_ADDITIONAL_EXPL;

        cmdiocbq = lpfc_sli_get_iocbq(phba);
        if (!cmdiocbq) {
                rc = 5;
                goto ct_free_bmpvirt;
        }

        if (phba->sli_rev == LPFC_SLI_REV4) {
                lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, bmp,
                                         phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
                                         ox_id, 1, FC_RCTL_DD_SOL_CTL, 1,
                                         CMD_XMIT_SEQUENCE64_WQE);
        } else {
                lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, bmp, 0, ulp_context, 1,
                                         FC_RCTL_DD_SOL_CTL, 1,
                                         CMD_XMIT_SEQUENCE64_CX);
        }

        /* Save for completion so we can release these resources */
        cmdiocbq->rsp_dmabuf = mp;
        cmdiocbq->bpl_dmabuf = bmp;
        cmdiocbq->cmd_cmpl = lpfc_ct_unsol_cmpl;
        tmo = (3 * phba->fc_ratov);

        cmdiocbq->retry = 0;
        cmdiocbq->vport = vport;
        cmdiocbq->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT;

        cmdiocbq->ndlp = lpfc_nlp_get(ndlp);
        if (!cmdiocbq->ndlp)
                goto ct_no_ndlp;

        rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
        if (rc) {
                lpfc_nlp_put(ndlp);
                goto ct_no_ndlp;
        }
        return;

ct_no_ndlp:
        rc = 6;
        lpfc_sli_release_iocbq(phba, cmdiocbq);
ct_free_bmpvirt:
        lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
ct_free_bmp:
        kfree(bmp);
ct_free_mpvirt:
        lpfc_mbuf_free(phba, mp->virt, mp->phys);
ct_free_mp:
        kfree(mp);
ct_exit:
        lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS,
                      "6440 Unsol CT: Rsp err %d Data: x%lx\n",
                      rc, vport->fc_flag);
}

/**
 * lpfc_ct_handle_mibreq - Process an unsolicited CT MIB request data buffer
 * @phba: pointer to lpfc hba data structure.
 * @ctiocbq: pointer to lpfc CT command iocb data structure.
 *
 * This routine is used for processing the IOCB associated with a unsolicited
 * CT MIB request. It first determines whether there is an existing ndlp that
 * matches the DID from the unsolicited IOCB. If not, it will return.
 **/
static void
lpfc_ct_handle_mibreq(struct lpfc_hba *phba, struct lpfc_iocbq *ctiocbq)
{
        struct lpfc_sli_ct_request *ct_req;
        struct lpfc_nodelist *ndlp = NULL;
        struct lpfc_vport *vport = ctiocbq->vport;
        u32 ulp_status = get_job_ulpstatus(phba, ctiocbq);
        u32 ulp_word4 = get_job_word4(phba, ctiocbq);
        u32 did;
        u16 mi_cmd;

        did = bf_get(els_rsp64_sid, &ctiocbq->wqe.xmit_els_rsp);
        if (ulp_status) {
                lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS,
                              "6438 Unsol CT: status:x%x/x%x did : x%x\n",
                              ulp_status, ulp_word4, did);
                return;
        }

        /* Ignore traffic received during vport shutdown */
        if (test_bit(FC_UNLOADING, &vport->load_flag))
                return;

        ndlp = lpfc_findnode_did(vport, did);
        if (!ndlp) {
                lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS,
                              "6439 Unsol CT: NDLP Not Found for DID : x%x",
                              did);
                return;
        }

        ct_req = (struct lpfc_sli_ct_request *)ctiocbq->cmd_dmabuf->virt;

        mi_cmd = be16_to_cpu(ct_req->CommandResponse.bits.CmdRsp);
        lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS,
                      "6442 MI Cmd: x%x Not Supported\n", mi_cmd);
        lpfc_ct_reject_event(ndlp, ct_req,
                             bf_get(wqe_ctxt_tag,
                                    &ctiocbq->wqe.xmit_els_rsp.wqe_com),
                             bf_get(wqe_rcvoxid,
                                    &ctiocbq->wqe.xmit_els_rsp.wqe_com));
}

/**
 * lpfc_ct_unsol_event - Process an unsolicited event from a ct sli ring
 * @phba: pointer to lpfc hba data structure.
 * @pring: pointer to a SLI ring.
 * @ctiocbq: pointer to lpfc ct iocb data structure.
 *
 * This routine is used to process an unsolicited event received from a SLI
 * (Service Level Interface) ring. The actual processing of the data buffer
 * associated with the unsolicited event is done by invoking appropriate routine
 * after properly set up the iocb buffer from the SLI ring on which the
 * unsolicited event was received.
 **/
void
lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                    struct lpfc_iocbq *ctiocbq)
{
        struct lpfc_dmabuf *mp = NULL;
        IOCB_t *icmd = &ctiocbq->iocb;
        int i;
        struct lpfc_iocbq *iocbq;
        struct lpfc_iocbq *iocb;
        dma_addr_t dma_addr;
        uint32_t size;
        struct list_head head;
        struct lpfc_sli_ct_request *ct_req;
        struct lpfc_dmabuf *bdeBuf1 = ctiocbq->cmd_dmabuf;
        struct lpfc_dmabuf *bdeBuf2 = ctiocbq->bpl_dmabuf;
        u32 status, parameter, bde_count = 0;
        struct lpfc_wcqe_complete *wcqe_cmpl = NULL;

        ctiocbq->cmd_dmabuf = NULL;
        ctiocbq->rsp_dmabuf = NULL;
        ctiocbq->bpl_dmabuf = NULL;

        wcqe_cmpl = &ctiocbq->wcqe_cmpl;
        status = get_job_ulpstatus(phba, ctiocbq);
        parameter = get_job_word4(phba, ctiocbq);
        if (phba->sli_rev == LPFC_SLI_REV4)
                bde_count = wcqe_cmpl->word3;
        else
                bde_count = icmd->ulpBdeCount;

        if (unlikely(status == IOSTAT_NEED_BUFFER)) {
                lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
        } else if ((status == IOSTAT_LOCAL_REJECT) &&
                   ((parameter & 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_sli3_post_buffer(phba, pring, 2);
                return;
        }

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

        ctiocbq->cmd_dmabuf = bdeBuf1;
        if (bde_count == 2)
                ctiocbq->bpl_dmabuf = bdeBuf2;

        ct_req = (struct lpfc_sli_ct_request *)ctiocbq->cmd_dmabuf->virt;

        if (ct_req->FsType == SLI_CT_MANAGEMENT_SERVICE &&
            ct_req->FsSubType == SLI_CT_MIB_Subtypes) {
                lpfc_ct_handle_mibreq(phba, ctiocbq);
        } else {
                if (!lpfc_bsg_ct_unsol_event(phba, pring, ctiocbq))
                        return;
        }

        if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
                INIT_LIST_HEAD(&head);
                list_add_tail(&head, &ctiocbq->list);
                list_for_each_entry(iocb, &head, list) {
                        if (phba->sli_rev == LPFC_SLI_REV4)
                                bde_count = iocb->wcqe_cmpl.word3;
                        else
                                bde_count = iocb->iocb.ulpBdeCount;

                        if (!bde_count)
                                continue;
                        bdeBuf1 = iocb->cmd_dmabuf;
                        iocb->cmd_dmabuf = NULL;
                        if (phba->sli_rev == LPFC_SLI_REV4)
                                size = iocb->wqe.gen_req.bde.tus.f.bdeSize;
                        else
                                size  = iocb->iocb.un.cont64[0].tus.f.bdeSize;
                        lpfc_ct_unsol_buffer(phba, ctiocbq, bdeBuf1, size);
                        lpfc_in_buf_free(phba, bdeBuf1);
                        if (bde_count == 2) {
                                bdeBuf2 = iocb->bpl_dmabuf;
                                iocb->bpl_dmabuf = NULL;
                                if (phba->sli_rev == LPFC_SLI_REV4)
                                        size = iocb->unsol_rcv_len;
                                else
                                        size = iocb->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize;
                                lpfc_ct_unsol_buffer(phba, ctiocbq, bdeBuf2,
                                                     size);
                                lpfc_in_buf_free(phba, bdeBuf2);
                        }
                }
                list_del(&head);
        } else {
                INIT_LIST_HEAD(&head);
                list_add_tail(&head, &ctiocbq->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++) {
                                dma_addr = getPaddr(icmd->un.cont64[i].addrHigh,
                                                    icmd->un.cont64[i].addrLow);
                                mp = lpfc_sli_ringpostbuf_get(phba, pring,
                                                              dma_addr);
                                size = icmd->un.cont64[i].tus.f.bdeSize;
                                lpfc_ct_unsol_buffer(phba, iocbq, mp, size);
                                lpfc_in_buf_free(phba, mp);
                        }
                        lpfc_sli3_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) {
                list_del(&mlast->list);
                lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
                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, __be16 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_obj(struct lpfc_dmabuf);
                if (!mp) {
                        if (mlist)
                                lpfc_free_ct_rsp(phba, mlist);
                        return NULL;
                }

                INIT_LIST_HEAD(&mp->list);

                if (be16_to_cpu(cmdcode) == SLI_CTNS_GID_FT ||
                    be16_to_cpu(cmdcode) == 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;

        /* IOCBQ job structure gets cleaned during release.  Just release
         * the dma buffers here.
         */
        if (ctiocb->cmd_dmabuf) {
                buf_ptr = ctiocb->cmd_dmabuf;
                lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
                kfree(buf_ptr);
                ctiocb->cmd_dmabuf = NULL;
        }
        if (ctiocb->rsp_dmabuf) {
                lpfc_free_ct_rsp(phba, ctiocb->rsp_dmabuf);
                ctiocb->rsp_dmabuf = NULL;
        }

        if (ctiocb->bpl_dmabuf) {
                buf_ptr = ctiocb->bpl_dmabuf;
                lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
                kfree(buf_ptr);
                ctiocb->bpl_dmabuf = NULL;
        }
        lpfc_sli_release_iocbq(phba, ctiocb);
        return 0;
}

/*
 * lpfc_gen_req - Build and issue a GEN_REQUEST command  to the SLI Layer
 * @vport: pointer to a host virtual N_Port data structure.
 * @bmp: Pointer to BPL for SLI command
 * @inp: Pointer to data buffer for response data.
 * @outp: Pointer to data buffer that hold the CT command.
 * @cmpl: completion routine to call when command completes
 * @ndlp: Destination NPort nodelist entry
 *
 * This function as the final part for issuing a CT command.
 */
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 event_tag, uint32_t num_entry,
             uint32_t tmo, uint8_t retry)
{
        struct lpfc_hba  *phba = vport->phba;
        struct lpfc_iocbq *geniocb;
        int rc;
        u16 ulp_context;

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

        if (geniocb == NULL)
                return 1;

        /* Update the num_entry bde count */
        geniocb->num_bdes = num_entry;

        geniocb->bpl_dmabuf = bmp;

        /* Save for completion so we can release these resources */
        geniocb->cmd_dmabuf = inp;
        geniocb->rsp_dmabuf = outp;

        geniocb->event_tag = event_tag;

        if (!tmo) {
                 /* FC spec states we need 3 * ratov for CT requests */
                tmo = (3 * phba->fc_ratov);
        }

        if (phba->sli_rev == LPFC_SLI_REV4)
                ulp_context = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
        else
                ulp_context = ndlp->nlp_rpi;

        lpfc_sli_prep_gen_req(phba, geniocb, bmp, ulp_context, num_entry, tmo);

        /* 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, geniocb->iotag,
                         vport->port_state);
        geniocb->cmd_cmpl = cmpl;
        geniocb->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT;
        geniocb->vport = vport;
        geniocb->retry = retry;
        geniocb->ndlp = lpfc_nlp_get(ndlp);
        if (!geniocb->ndlp)
                goto out;

        rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, geniocb, 0);
        if (rc == IOCB_ERROR) {
                lpfc_nlp_put(ndlp);
                goto out;
        }

        return 0;
out:
        lpfc_sli_release_iocbq(phba, geniocb);
        return 1;
}

/*
 * lpfc_ct_cmd - Build and issue a CT command
 * @vport: pointer to a host virtual N_Port data structure.
 * @inmp: Pointer to data buffer for response data.
 * @bmp: Pointer to BPL for SLI command
 * @ndlp: Destination NPort nodelist entry
 * @cmpl: completion routine to call when command completes
 *
 * This function is called for issuing a CT command.
 */
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;
        __be16 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,
                        phba->fc_eventTag, 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->port_list_lock, 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->port_list_lock, flags);
                        return vport_curr;
                }
        }
        spin_unlock_irqrestore(&phba->port_list_lock, flags);
        return NULL;
}

static void
lpfc_prep_node_fc4type(struct lpfc_vport *vport, uint32_t Did, uint8_t fc4_type)
{
        struct lpfc_nodelist *ndlp;

        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) {
                        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "Parse GID_FTrsp: did:x%x flg:x%lx x%x",
                                Did, ndlp->nlp_flag, vport->fc_flag);

                        /* By default, the driver expects to support FCP FC4 */
                        if (fc4_type == FC_TYPE_FCP)
                                ndlp->nlp_fc4_type |= NLP_FC4_FCP;

                        if (fc4_type == FC_TYPE_NVME)
                                ndlp->nlp_fc4_type |= NLP_FC4_NVME;

                        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                         "0238 Process x%06x NameServer Rsp "
                                         "Data: x%lx x%x x%x x%lx x%x\n", Did,
                                         ndlp->nlp_flag, ndlp->nlp_fc4_type,
                                         ndlp->nlp_state, vport->fc_flag,
                                         vport->fc_rscn_id_cnt);

                        /* if ndlp needs to be discovered and prior
                         * state of ndlp hit devloss, change state to
                         * allow rediscovery.
                         */
                        if (test_bit(NLP_NPR_2B_DISC, &ndlp->nlp_flag) &&
                            ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
                                lpfc_nlp_set_state(vport, ndlp,
                                                   NLP_STE_NPR_NODE);
                        }
                } else {
                        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "Skip1 GID_FTrsp: did:x%x flg:x%lx cnt:%d",
                                Did, vport->fc_flag, vport->fc_rscn_id_cnt);

                        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                         "0239 Skip x%06x NameServer Rsp "
                                         "Data: x%lx x%x x%px\n",
                                         Did, vport->fc_flag,
                                         vport->fc_rscn_id_cnt, ndlp);
                }
        } else {
                if (!test_bit(FC_RSCN_MODE, &vport->fc_flag) ||
                    lpfc_rscn_payload_check(vport, Did)) {
                        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "Query GID_FTrsp: did:x%x flg:x%lx cnt:%d",
                                Did, vport->fc_flag, vport->fc_rscn_id_cnt);

                        /*
                         * This NPortID was previously a FCP/NVMe target,
                         * Don't even bother to send GFF_ID.
                         */
                        ndlp = lpfc_findnode_did(vport, Did);
                        if (ndlp &&
                            (ndlp->nlp_type &
                            (NLP_FCP_TARGET | NLP_NVME_TARGET))) {
                                if (fc4_type == FC_TYPE_FCP)
                                        ndlp->nlp_fc4_type |= NLP_FC4_FCP;
                                if (fc4_type == FC_TYPE_NVME)
                                        ndlp->nlp_fc4_type |= NLP_FC4_NVME;
                                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%lx cnt:%d",
                                Did, vport->fc_flag, vport->fc_rscn_id_cnt);

                        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                         "0245 Skip x%06x NameServer Rsp "
                                         "Data: x%lx x%x\n", Did,
                                         vport->fc_flag,
                                         vport->fc_rscn_id_cnt);
                }
        }
}

static void
lpfc_ns_rsp_audit_did(struct lpfc_vport *vport, uint32_t Did, uint8_t fc4_type)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_nodelist *ndlp = NULL;
        char *str;

        if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT)
                str = "GID_FT";
        else
                str = "GID_PT";
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "6430 Process %s rsp for %08x type %x %s %s\n",
                         str, Did, fc4_type,
                         (fc4_type == FC_TYPE_FCP) ?  "FCP" : " ",
                         (fc4_type == FC_TYPE_NVME) ?  "NVME" : " ");
        /*
         * 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) ||
             vport->cfg_peer_port_login)) {
                if (!phba->nvmet_support) {
                        /* FCPI/NVMEI path. Process Did */
                        lpfc_prep_node_fc4type(vport, Did, fc4_type);
                        return;
                }
                /* NVMET path.  NVMET only cares about NVMEI nodes. */
                list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
                        if (ndlp->nlp_type != NLP_NVME_INITIATOR ||
                            ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
                                continue;
                        if (ndlp->nlp_DID == Did)
                                clear_bit(NLP_NVMET_RECOV, &ndlp->nlp_flag);
                        else
                                set_bit(NLP_NVMET_RECOV, &ndlp->nlp_flag);
                }
        }
}

static int
lpfc_ns_rsp(struct lpfc_vport *vport, struct lpfc_dmabuf *mp, uint8_t fc4_type,
            uint32_t Size)
{
        struct lpfc_sli_ct_request *Response =
                (struct lpfc_sli_ct_request *) mp->virt;
        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;
        struct lpfc_nodelist *ndlp = NULL;

        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);
                        lpfc_ns_rsp_audit_did(vport, Did, fc4_type);
                        if (CTentry & (cpu_to_be32(SLI_CT_LAST_ENTRY)))
                                goto nsout1;

                        Cnt -= sizeof(uint32_t);
                }
                ctptr = NULL;

        }

        /* All GID_FT entries processed.  If the driver is running in
         * in target mode, put impacted nodes into recovery and drop
         * the RPI to flush outstanding IO.
         */
        if (vport->phba->nvmet_support) {
                list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
                        if (!test_bit(NLP_NVMET_RECOV, &ndlp->nlp_flag))
                                continue;
                        lpfc_disc_state_machine(vport, ndlp, NULL,
                                                NLP_EVT_DEVICE_RECOVERY);
                        clear_bit(NLP_NVMET_RECOV, &ndlp->nlp_flag);
                }
        }

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 lpfc_dmabuf *outp;
        struct lpfc_dmabuf *inp;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_sli_ct_request *CTreq;
        struct lpfc_nodelist *ndlp;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
        u32 ulp_word4 = get_job_word4(phba, rspiocb);
        int rc, type;

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

        /* we pass cmdiocb to state machine which needs rspiocb as well */
        cmdiocb->rsp_iocb = rspiocb;
        inp = cmdiocb->cmd_dmabuf;
        outp = cmdiocb->rsp_dmabuf;

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                 "GID_FT cmpl:     status:x%x/x%x rtry:%d",
                ulp_status, ulp_word4, vport->fc_ns_retry);

        /* Ignore response if link flipped after this request was made */
        if (cmdiocb->event_tag != phba->fc_eventTag) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "9043 Event tag mismatch. Ignoring NS rsp\n");
                goto out;
        }

        /* Skip processing response on pport if unloading */
        if (vport == phba->pport && test_bit(FC_UNLOADING, &vport->load_flag)) {
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        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 (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                goto out;
        }
        if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0226 NS query failed due to link event: "
                                 "ulp_status x%x ulp_word4 x%x fc_flag x%lx "
                                 "port_state x%x gidft_inp x%x\n",
                                 ulp_status, ulp_word4, vport->fc_flag,
                                 vport->port_state, vport->gidft_inp);
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                if (vport->gidft_inp)
                        vport->gidft_inp--;
                goto out;
        }

        if (test_and_clear_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) {
                /* This is a GID_FT completing so the gidft_inp counter was
                 * incremented before the GID_FT was issued to the wire.
                 */
                if (vport->gidft_inp)
                        vport->gidft_inp--;

                /*
                 * Skip processing the NS response
                 * Re-issue the NS cmd
                 */
                lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
                                 "0151 Process Deferred RSCN Data: x%lx x%x\n",
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
                lpfc_els_handle_rscn(vport);

                goto out;
        }

        if (ulp_status) {
                /* Check for retry */
                if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                        if (ulp_status != IOSTAT_LOCAL_REJECT ||
                            (ulp_word4 & IOERR_PARAM_MASK) !=
                            IOERR_NO_RESOURCES)
                                vport->fc_ns_retry++;

                        type = lpfc_get_gidft_type(vport, cmdiocb);
                        if (type == 0)
                                goto out;

                        /* CT command is being retried */
                        rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
                                         vport->fc_ns_retry, type);
                        if (rc == 0)
                                goto out;
                        else { /* Unable to send NS cmd */
                                if (vport->gidft_inp)
                                        vport->gidft_inp--;
                        }
                }
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "0257 GID_FT Query error: 0x%x 0x%x\n",
                                 ulp_status, vport->fc_ns_retry);
        } else {
                /* Good status, continue checking */
                CTreq = (struct lpfc_sli_ct_request *) inp->virt;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (CTrsp->CommandResponse.bits.CmdRsp ==
                    cpu_to_be16(SLI_CT_RESPONSE_FS_ACC)) {
                        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                         "0208 NameServer Rsp Data: x%lx x%x "
                                         "x%x x%x sz x%x\n",
                                         vport->fc_flag,
                                         CTreq->un.gid.Fc4Type,
                                         vport->num_disc_nodes,
                                         vport->gidft_inp,
                                         get_job_data_placed(phba, rspiocb));

                        lpfc_ns_rsp(vport,
                                    outp,
                                    CTreq->un.gid.Fc4Type,
                                    get_job_data_placed(phba, rspiocb));
                } else if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                           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%lx\n",
                                        be16_to_cpu(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",
                                be16_to_cpu(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%lx\n",
                                        be16_to_cpu(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",
                                be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
                                (uint32_t) CTrsp->ReasonCode,
                                (uint32_t) CTrsp->Explanation);
                        }


                } else {
                        /* NameServer Rsp Error */
                        lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                        "0241 NameServer Rsp Error "
                                        "Data: x%x x%x x%x x%lx\n",
                                        be16_to_cpu(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",
                                be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
                                (uint32_t) CTrsp->ReasonCode,
                                (uint32_t) CTrsp->Explanation);
                }
                if (vport->gidft_inp)
                        vport->gidft_inp--;
        }

        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "4216 GID_FT cmpl inp %d disc %d\n",
                         vport->gidft_inp, vport->num_disc_nodes);

        /* Link up / RSCN discovery */
        if ((vport->num_disc_nodes == 0) &&
            (vport->gidft_inp == 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 (test_bit(FC_RSCN_MODE, &vport->fc_flag)) {
                                lpfc_els_flush_rscn(vport);
                                /* RSCN still */
                                set_bit(FC_RSCN_MODE, &vport->fc_flag);
                        } else {
                                lpfc_els_flush_rscn(vport);
                        }
                }

                lpfc_disc_start(vport);
        }
out:
        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(ndlp);
        return;
}

static void
lpfc_cmpl_ct_cmd_gid_pt(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct lpfc_dmabuf *outp;
        struct lpfc_dmabuf *inp;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_sli_ct_request *CTreq;
        struct lpfc_nodelist *ndlp;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
        u32 ulp_word4 = get_job_word4(phba, rspiocb);
        int rc;

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

        /* we pass cmdiocb to state machine which needs rspiocb as well */
        cmdiocb->rsp_iocb = rspiocb;
        inp = cmdiocb->cmd_dmabuf;
        outp = cmdiocb->rsp_dmabuf;

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                              "GID_PT cmpl:     status:x%x/x%x rtry:%d",
                              ulp_status, ulp_word4,
                              vport->fc_ns_retry);

        /* Ignore response if link flipped after this request was made */
        if (cmdiocb->event_tag != phba->fc_eventTag) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "9044 Event tag mismatch. Ignoring NS rsp\n");
                goto out;
        }

        /* Skip processing response on pport if unloading */
        if (vport == phba->pport && test_bit(FC_UNLOADING, &vport->load_flag)) {
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                goto out;
        }

        if (lpfc_els_chk_latt(vport)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "4108 Link event during NS query\n");
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                goto out;
        }
        if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "4166 NS query failed due to link event: "
                                 "ulp_status x%x ulp_word4 x%x fc_flag x%lx "
                                 "port_state x%x gidft_inp x%x\n",
                                 ulp_status, ulp_word4, vport->fc_flag,
                                 vport->port_state, vport->gidft_inp);
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                if (vport->gidft_inp)
                        vport->gidft_inp--;
                goto out;
        }

        if (test_and_clear_bit(FC_RSCN_DEFERRED, &vport->fc_flag)) {
                /* This is a GID_PT completing so the gidft_inp counter was
                 * incremented before the GID_PT was issued to the wire.
                 */
                if (vport->gidft_inp)
                        vport->gidft_inp--;

                /*
                 * Skip processing the NS response
                 * Re-issue the NS cmd
                 */
                lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
                                 "4167 Process Deferred RSCN Data: x%lx x%x\n",
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
                lpfc_els_handle_rscn(vport);

                goto out;
        }

        if (ulp_status) {
                /* Check for retry */
                if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                        if (ulp_status != IOSTAT_LOCAL_REJECT ||
                            (ulp_word4 & IOERR_PARAM_MASK) !=
                            IOERR_NO_RESOURCES)
                                vport->fc_ns_retry++;

                        /* CT command is being retried */
                        rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_PT,
                                         vport->fc_ns_retry, GID_PT_N_PORT);
                        if (rc == 0)
                                goto out;
                        else { /* Unable to send NS cmd */
                                if (vport->gidft_inp)
                                        vport->gidft_inp--;
                        }
                }
                if (test_bit(FC_RSCN_MODE, &vport->fc_flag))
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "4103 GID_FT Query error: 0x%x 0x%x\n",
                                 ulp_status, vport->fc_ns_retry);
        } else {
                /* Good status, continue checking */
                CTreq = (struct lpfc_sli_ct_request *)inp->virt;
                CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
                if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                    SLI_CT_RESPONSE_FS_ACC) {
                        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                         "4105 NameServer Rsp Data: x%lx x%x "
                                         "x%x x%x sz x%x\n",
                                         vport->fc_flag,
                                         CTreq->un.gid.Fc4Type,
                                         vport->num_disc_nodes,
                                         vport->gidft_inp,
                                         get_job_data_placed(phba, rspiocb));

                        lpfc_ns_rsp(vport,
                                    outp,
                                    CTreq->un.gid.Fc4Type,
                                    get_job_data_placed(phba, rspiocb));
                } else if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                           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,
                                        "4106 No NameServer Entries "
                                        "Data: x%x x%x x%x x%lx\n",
                                        be16_to_cpu(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_PT no entry  cmd:x%x rsn:x%x exp:x%x",
                                be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
                                (uint32_t)CTrsp->ReasonCode,
                                (uint32_t)CTrsp->Explanation);
                        } else {
                                lpfc_printf_vlog(
                                        vport, KERN_INFO, LOG_DISCOVERY,
                                        "4107 NameServer Rsp Error "
                                        "Data: x%x x%x x%x x%lx\n",
                                        be16_to_cpu(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_PT rsp err1  cmd:x%x rsn:x%x exp:x%x",
                                be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
                                (uint32_t)CTrsp->ReasonCode,
                                (uint32_t)CTrsp->Explanation);
                        }
                } else {
                        /* NameServer Rsp Error */
                        lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                         "4109 NameServer Rsp Error "
                                         "Data: x%x x%x x%x x%lx\n",
                                         be16_to_cpu(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_PT rsp err2  cmd:x%x rsn:x%x exp:x%x",
                                be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
                                (uint32_t)CTrsp->ReasonCode,
                                (uint32_t)CTrsp->Explanation);
                }
                if (vport->gidft_inp)
                        vport->gidft_inp--;
        }

        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "6450 GID_PT cmpl inp %d disc %d\n",
                         vport->gidft_inp, vport->num_disc_nodes);

        /* Link up / RSCN discovery */
        if ((vport->num_disc_nodes == 0) &&
            (vport->gidft_inp == 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 (test_bit(FC_RSCN_MODE, &vport->fc_flag)) {
                                lpfc_els_flush_rscn(vport);
                                /* RSCN still */
                                set_bit(FC_RSCN_MODE, &vport->fc_flag);
                        } else {
                                lpfc_els_flush_rscn(vport);
                        }
                }

                lpfc_disc_start(vport);
        }
out:
        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(ndlp);
}

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 lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
        struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
        struct lpfc_sli_ct_request *CTrsp;
        int did, rc, retry;
        uint8_t fbits;
        struct lpfc_nodelist *ndlp = NULL, *free_ndlp = NULL;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
        u32 ulp_word4 = get_job_word4(phba, rspiocb);

        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",
                ulp_status, ulp_word4, did);

        /* Ignore response if link flipped after this request was made */
        if (cmdiocb->event_tag != phba->fc_eventTag) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "9045 Event tag mismatch. Ignoring NS rsp\n");
                goto iocb_free;
        }

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

                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "6431 Process GFF_ID rsp for %08x "
                                 "fbits %02x %s %s\n",
                                 did, fbits,
                                 (fbits & FC4_FEATURE_INIT) ? "Initiator" : " ",
                                 (fbits & FC4_FEATURE_TARGET) ? "Target" : " ");

                if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                    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 (ulp_status == IOSTAT_LOCAL_REJECT) {
                                switch ((ulp_word4 &
                                        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 */
                                        free_ndlp = cmdiocb->ndlp;
                                        lpfc_ct_free_iocb(phba, cmdiocb);
                                        lpfc_nlp_put(free_ndlp);
                                        return;
                                }
                        }
                }
                lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "0267 NameServer GFF Rsp "
                                 "x%x Error (%d %d) Data: x%lx x%x\n",
                                 did, ulp_status, ulp_word4,
                                 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) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0242 Process x%x GFF "
                                 "NameServer Rsp Data: x%lx x%lx 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%lx 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--;

        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "6451 GFF_ID cmpl inp %d disc %d\n",
                         vport->gidft_inp, 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 (test_bit(FC_RSCN_MODE, &vport->fc_flag)) {
                                lpfc_els_flush_rscn(vport);
                                /* RSCN still */
                                set_bit(FC_RSCN_MODE, &vport->fc_flag);
                        } else {
                                lpfc_els_flush_rscn(vport);
                        }
                }
                lpfc_disc_start(vport);
        }

iocb_free:
        free_ndlp = cmdiocb->ndlp;
        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(free_ndlp);
        return;
}

static void
lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
        struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
        struct lpfc_sli_ct_request *CTrsp;
        int did;
        struct lpfc_nodelist *ndlp = NULL;
        struct lpfc_nodelist *ns_ndlp = cmdiocb->ndlp;
        uint32_t fc4_data_0, fc4_data_1;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
        u32 ulp_word4 = get_job_word4(phba, rspiocb);

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

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                              "GFT_ID cmpl: status:x%x/x%x did:x%x",
                              ulp_status, ulp_word4, did);

        /* Ignore response if link flipped after this request was made */
        if ((uint32_t)cmdiocb->event_tag != phba->fc_eventTag) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "9046 Event tag mismatch. Ignoring NS rsp\n");
                goto out;
        }

        if (ulp_status == IOSTAT_SUCCESS) {
                /* Good status, continue checking */
                CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
                fc4_data_0 = be32_to_cpu(CTrsp->un.gft_acc.fc4_types[0]);
                fc4_data_1 = be32_to_cpu(CTrsp->un.gft_acc.fc4_types[1]);

                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "6432 Process GFT_ID rsp for %08x "
                                 "Data %08x %08x %s %s\n",
                                 did, fc4_data_0, fc4_data_1,
                                 (fc4_data_0 & LPFC_FC4_TYPE_BITMASK) ?
                                  "FCP" : " ",
                                 (fc4_data_1 & LPFC_FC4_TYPE_BITMASK) ?
                                  "NVME" : " ");

                /* Lookup the NPort_ID queried in the GFT_ID and find the
                 * driver's local node.  It's an error if the driver
                 * doesn't have one.
                 */
                ndlp = lpfc_findnode_did(vport, did);
                if (ndlp) {
                        /* The bitmask value for FCP and NVME FCP types is
                         * the same because they are 32 bits distant from
                         * each other in word0 and word0.
                         */
                        if (fc4_data_0 & LPFC_FC4_TYPE_BITMASK)
                                ndlp->nlp_fc4_type |= NLP_FC4_FCP;
                        if (fc4_data_1 &  LPFC_FC4_TYPE_BITMASK)
                                ndlp->nlp_fc4_type |= NLP_FC4_NVME;
                        lpfc_printf_vlog(vport, KERN_INFO,
                                         LOG_DISCOVERY | LOG_NODE,
                                         "3064 Setting ndlp x%px, DID x%06x "
                                         "with FC4 x%08x, Data: x%08x x%08x "
                                         "%d\n",
                                         ndlp, did, ndlp->nlp_fc4_type,
                                         FC_TYPE_FCP, FC_TYPE_NVME,
                                         ndlp->nlp_state);

                        if (ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE &&
                            ndlp->nlp_fc4_type) {
                                ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
                                lpfc_nlp_set_state(vport, ndlp,
                                                   NLP_STE_PRLI_ISSUE);
                                lpfc_issue_els_prli(vport, ndlp, 0);
                        } else if (!ndlp->nlp_fc4_type) {
                                /* If fc4 type is still unknown, then LOGO */
                                lpfc_printf_vlog(vport, KERN_INFO,
                                                 LOG_DISCOVERY | LOG_NODE,
                                                 "6443 Sending LOGO ndlp x%px, "
                                                 "DID x%06x with fc4_type: "
                                                 "x%08x, state: %d\n",
                                                 ndlp, did, ndlp->nlp_fc4_type,
                                                 ndlp->nlp_state);
                                lpfc_issue_els_logo(vport, ndlp, 0);
                                ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
                                lpfc_nlp_set_state(vport, ndlp,
                                                   NLP_STE_NPR_NODE);
                        }
                }
        } else
                lpfc_vlog_msg(vport, KERN_WARNING, LOG_DISCOVERY,
                              "3065 GFT_ID status x%08x\n", ulp_status);

out:
        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(ns_ndlp);
}

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;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_nodelist *ndlp;
        int cmdcode, rc;
        uint8_t retry;
        uint32_t latt;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
        u32 ulp_word4 = get_job_word4(phba, rspiocb);

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

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

        inp = cmdiocb->cmd_dmabuf;
        outp = cmdiocb->rsp_dmabuf;

        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 <ulp_status> CmdRsp <CmdRsp> */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0209 CT Request completes, latt %d, "
                         "ulp_status x%x CmdRsp x%x, Context x%x, Tag x%x\n",
                         latt, ulp_status,
                         be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
                         get_job_ulpcontext(phba, cmdiocb), cmdiocb->iotag);

        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                "CT cmd cmpl:     status:x%x/x%x cmd:x%x",
                ulp_status, ulp_word4, cmdcode);

        if (ulp_status) {
                lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "0268 NS cmd x%x Error (x%x x%x)\n",
                                 cmdcode, ulp_status, ulp_word4);

                if (ulp_status == IOSTAT_LOCAL_REJECT &&
                    (((ulp_word4 & IOERR_PARAM_MASK) ==
                      IOERR_SLI_DOWN) ||
                     ((ulp_word4 & 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:
        /* If the caller wanted a synchronous DA_ID completion, signal the
         * wait obj and clear flag to reset the vport.
         */
        if (test_bit(NLP_WAIT_FOR_DA_ID, &ndlp->save_flags)) {
                if (ndlp->da_id_waitq)
                        wake_up(ndlp->da_id_waitq);
        }

        clear_bit(NLP_WAIT_FOR_DA_ID, &ndlp->save_flags);

        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(ndlp);
        return;
}

static void
lpfc_cmpl_ct_cmd_rft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                        struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);

        if (ulp_status == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = cmdiocb->rsp_dmabuf;
                CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
                if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                    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)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);

        if (ulp_status == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = cmdiocb->rsp_dmabuf;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                    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)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);

        if (ulp_status == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = cmdiocb->rsp_dmabuf;
                CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
                if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                    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)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);

        if (ulp_status == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

                outp = cmdiocb->rsp_dmabuf;
                CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
                if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
                    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_rspni_pni(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                           struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport;
        struct lpfc_dmabuf *outp;
        struct lpfc_sli_ct_request *ctrsp;
        u32 ulp_status;

        vport = cmdiocb->vport;
        ulp_status = get_job_ulpstatus(phba, rspiocb);

        if (ulp_status == IOSTAT_SUCCESS) {
                outp = cmdiocb->rsp_dmabuf;
                ctrsp = (struct lpfc_sli_ct_request *)outp->virt;
                if (be16_to_cpu(ctrsp->CommandResponse.bits.CmdRsp) ==
                    SLI_CT_RESPONSE_FS_ACC)
                        vport->ct_flags |= FC_CT_RSPNI_PNI;
        }
        lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
}

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)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);

        if (ulp_status == IOSTAT_SUCCESS) {
                struct lpfc_dmabuf *outp;
                struct lpfc_sli_ct_request *CTrsp;

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

/*
 * Although the symbolic port name is thought to be an integer
 * as of January 18, 2016, leave it as a string until more of
 * the record state becomes defined.
 */
int
lpfc_vport_symbolic_port_name(struct lpfc_vport *vport, char *symbol,
        size_t size)
{
        int n;

        /*
         * Use the lpfc board number as the Symbolic Port
         * Name object.  NPIV is not in play so this integer
         * value is sufficient and unique per FC-ID.
         */
        n = scnprintf(symbol, size, "%d", vport->phba->brd_no);
        return n;
}


int
lpfc_vport_symbolic_node_name(struct lpfc_vport *vport, char *symbol,
        size_t size)
{
        char fwrev[FW_REV_STR_SIZE] = {0};
        char tmp[MAXHOSTNAMELEN] = {0};

        memset(symbol, 0, size);

        scnprintf(tmp, sizeof(tmp), "Emulex %s", vport->phba->ModelName);
        if (strlcat(symbol, tmp, size) >= size)
                goto buffer_done;

        lpfc_decode_firmware_rev(vport->phba, fwrev, 0);
        scnprintf(tmp, sizeof(tmp), " FV%s", fwrev);
        if (strlcat(symbol, tmp, size) >= size)
                goto buffer_done;

        scnprintf(tmp, sizeof(tmp), " DV%s", lpfc_release_version);
        if (strlcat(symbol, tmp, size) >= size)
                goto buffer_done;

        scnprintf(tmp, sizeof(tmp), " HN:%s", vport->phba->os_host_name);
        if (strlcat(symbol, tmp, size) >= size)
                goto buffer_done;

        /* Note :- OS name is "Linux" */
        scnprintf(tmp, sizeof(tmp), " OS:%s", init_utsname()->sysname);
        strlcat(symbol, tmp, size);

buffer_done:
        return strnlen(symbol, size);

}

static uint32_t
lpfc_find_map_node(struct lpfc_vport *vport)
{
        struct lpfc_nodelist *ndlp, *next_ndlp;
        unsigned long iflags;
        uint32_t cnt = 0;

        spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);
        list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
                if (ndlp->nlp_type & NLP_FABRIC)
                        continue;
                if ((ndlp->nlp_state == NLP_STE_MAPPED_NODE) ||
                    (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE))
                        cnt++;
        }
        spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags);
        return cnt;
}

/*
 * This routine will return the FC4 Type associated with the CT
 * GID_FT command.
 */
int
lpfc_get_gidft_type(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb)
{
        struct lpfc_sli_ct_request *CtReq;
        struct lpfc_dmabuf *mp;
        uint32_t type;

        mp = cmdiocb->cmd_dmabuf;
        if (mp == NULL)
                return 0;
        CtReq = (struct lpfc_sli_ct_request *)mp->virt;
        type = (uint32_t)CtReq->un.gid.Fc4Type;
        if ((type != SLI_CTPT_FCP) && (type != SLI_CTPT_NVME))
                return 0;
        return type;
}

/*
 * 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 *ptr;
        uint32_t rsp_size = 1024;
        size_t   size;
        int rc = 0;

        ndlp = lpfc_findnode_did(vport, NameServer_DID);
        if (!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_obj(struct lpfc_dmabuf);
        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_obj(struct lpfc_dmabuf);
        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%lx x%x x%x\n",
                         cmdcode, vport->fc_flag, vport->fc_rscn_id_cnt,
                         context);

        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_GID_PT)
                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_GFT_ID)
                bpl->tus.f.bdeSize = GFT_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_RSPNI_PNI)
                bpl->tus.f.bdeSize = RSPNI_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 =
                    cpu_to_be16(SLI_CTNS_GID_FT);
                CtReq->un.gid.Fc4Type = context;

                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_GID_PT:
                CtReq->CommandResponse.bits.CmdRsp =
                    cpu_to_be16(SLI_CTNS_GID_PT);
                CtReq->un.gid.PortType = context;

                if (vport->port_state < LPFC_NS_QRY)
                        vport->port_state = LPFC_NS_QRY;
                lpfc_set_disctmo(vport);
                cmpl = lpfc_cmpl_ct_cmd_gid_pt;
                rsp_size = FC_MAX_NS_RSP;
                break;

        case SLI_CTNS_GFF_ID:
                CtReq->CommandResponse.bits.CmdRsp =
                        cpu_to_be16(SLI_CTNS_GFF_ID);
                CtReq->un.gff.PortId = cpu_to_be32(context);
                cmpl = lpfc_cmpl_ct_cmd_gff_id;
                break;

        case SLI_CTNS_GFT_ID:
                CtReq->CommandResponse.bits.CmdRsp =
                        cpu_to_be16(SLI_CTNS_GFT_ID);
                CtReq->un.gft.PortId = cpu_to_be32(context);
                cmpl = lpfc_cmpl_ct_cmd_gft_id;
                break;

        case SLI_CTNS_RFT_ID:
                vport->ct_flags &= ~FC_CT_RFT_ID;
                CtReq->CommandResponse.bits.CmdRsp =
                    cpu_to_be16(SLI_CTNS_RFT_ID);
                CtReq->un.rft.port_id = cpu_to_be32(vport->fc_myDID);

                /* Register Application Services type if vmid enabled. */
                if (phba->cfg_vmid_app_header)
                        CtReq->un.rft.app_serv_reg =
                                cpu_to_be32(RFT_APP_SERV_REG);

                /* Register FC4 FCP type if enabled.  */
                if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
                    vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)
                        CtReq->un.rft.fcp_reg = cpu_to_be32(RFT_FCP_REG);

                /* Register NVME type if enabled. */
                if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
                    vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
                        CtReq->un.rft.nvme_reg = cpu_to_be32(RFT_NVME_REG);

                ptr = (uint32_t *)CtReq;
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "6433 Issue RFT (%s %s %s): %08x %08x %08x "
                                 "%08x %08x %08x %08x %08x\n",
                                 CtReq->un.rft.fcp_reg ? "FCP" : " ",
                                 CtReq->un.rft.nvme_reg ? "NVME" : " ",
                                 CtReq->un.rft.app_serv_reg ? "APPS" : " ",
                                 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
                                 *(ptr + 4), *(ptr + 5),
                                 *(ptr + 6), *(ptr + 7));
                cmpl = lpfc_cmpl_ct_cmd_rft_id;
                break;

        case SLI_CTNS_RNN_ID:
                vport->ct_flags &= ~FC_CT_RNN_ID;
                CtReq->CommandResponse.bits.CmdRsp =
                    cpu_to_be16(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 =
                    cpu_to_be16(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 =
                    cpu_to_be16(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_RSPNI_PNI:
                vport->ct_flags &= ~FC_CT_RSPNI_PNI;
                CtReq->CommandResponse.bits.CmdRsp =
                    cpu_to_be16(SLI_CTNS_RSPNI_PNI);
                CtReq->un.rspni.pni = cpu_to_be64(phba->pni);
                scnprintf(CtReq->un.rspni.symbname,
                          sizeof(CtReq->un.rspni.symbname), "OS Host Name::%s",
                          phba->os_host_name);
                CtReq->un.rspni.len = strnlen(CtReq->un.rspni.symbname,
                                              sizeof(CtReq->un.rspni.symbname));
                cmpl = lpfc_cmpl_ct_cmd_rspni_pni;
                break;
        case SLI_CTNS_DA_ID:
                /* Implement DA_ID Nameserver request */
                CtReq->CommandResponse.bits.CmdRsp =
                        cpu_to_be16(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 =
                    cpu_to_be16(SLI_CTNS_RFF_ID);
                CtReq->un.rff.PortId = cpu_to_be32(vport->fc_myDID);
                CtReq->un.rff.fbits = FC4_FEATURE_INIT;

                /* The driver always supports FC_TYPE_FCP.  However, the
                 * caller can specify NVME (type x28) as well.  But only
                 * these that FC4 type is supported.
                 */
                if (((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
                     (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) &&
                    (context == FC_TYPE_NVME)) {
                        if ((vport == phba->pport) && phba->nvmet_support) {
                                CtReq->un.rff.fbits = (FC4_FEATURE_TARGET |
                                        FC4_FEATURE_NVME_DISC);
                                lpfc_nvmet_update_targetport(phba);
                        } else {
                                lpfc_nvme_update_localport(vport);
                        }
                        CtReq->un.rff.type_code = context;

                } else if (((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
                            (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) &&
                           (context == FC_TYPE_FCP))
                        CtReq->un.rff.type_code = context;

                else
                        goto ns_cmd_free_bmpvirt;

                ptr = (uint32_t *)CtReq;
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "6434 Issue RFF (%s): %08x %08x %08x %08x "
                                 "%08x %08x %08x %08x\n",
                                 (context == FC_TYPE_NVME) ? "NVME" : "FCP",
                                 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
                                 *(ptr + 4), *(ptr + 5),
                                 *(ptr + 6), *(ptr + 7));
                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;

ns_cmd_free_bmpvirt:
        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_TRACE_EVENT,
                         "0266 Issue NameServer Req x%x err %d Data: x%lx "
                         "x%x\n",
                         cmdcode, rc, vport->fc_flag, vport->fc_rscn_id_cnt);
        return 1;
}

/**
 * lpfc_fdmi_rprt_defer - Check for any deferred FDMI RPRT commands
 * @phba: Pointer to HBA context object.
 * @mask: Initial port attributes mask
 *
 * This function checks to see if any vports have deferred their FDMI RPRT.
 * A vports RPRT may be deferred if it is issued before the primary ports
 * RHBA completes.
 */
static void
lpfc_fdmi_rprt_defer(struct lpfc_hba *phba, uint32_t mask)
{
        struct lpfc_vport **vports;
        struct lpfc_vport *vport;
        struct lpfc_nodelist *ndlp;
        int i;

        set_bit(HBA_RHBA_CMPL, &phba->hba_flag);
        vports = lpfc_create_vport_work_array(phba);
        if (vports) {
                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
                        vport = vports[i];
                        ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                        if (!ndlp)
                                continue;
                        if (vport->ct_flags & FC_CT_RPRT_DEFER) {
                                vport->ct_flags &= ~FC_CT_RPRT_DEFER;
                                vport->fdmi_port_mask = mask;
                                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT, 0);
                        }
                }
        }
        lpfc_destroy_vport_work_array(phba, vports);
}

/**
 * lpfc_cmpl_ct_disc_fdmi - Handle a discovery FDMI completion
 * @phba: Pointer to HBA context object.
 * @cmdiocb: Pointer to the command IOCBQ.
 * @rspiocb: Pointer to the response IOCBQ.
 *
 * This function to handle the completion of a driver initiated FDMI
 * CT command issued during discovery.
 */
static void
lpfc_cmpl_ct_disc_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                       struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
        struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
        struct lpfc_sli_ct_request *CTcmd = inp->virt;
        struct lpfc_sli_ct_request *CTrsp = outp->virt;
        __be16 fdmi_cmd = CTcmd->CommandResponse.bits.CmdRsp;
        __be16 fdmi_rsp = CTrsp->CommandResponse.bits.CmdRsp;
        struct lpfc_nodelist *ndlp, *free_ndlp = NULL;
        uint32_t latt, cmd, err;
        u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
        u32 ulp_word4 = get_job_word4(phba, rspiocb);

        latt = lpfc_els_chk_latt(vport);
        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                "FDMI cmpl:       status:x%x/x%x latt:%d",
                ulp_status, ulp_word4, latt);

        if (latt || ulp_status) {
                lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
                                 "0229 FDMI cmd %04x failed, latt = %d "
                                 "ulp_status: (x%x/x%x), sli_flag x%x\n",
                                 be16_to_cpu(fdmi_cmd), latt, ulp_status,
                                 ulp_word4, phba->sli.sli_flag);

                /* Look for a retryable error */
                if (ulp_status == IOSTAT_LOCAL_REJECT) {
                        switch ((ulp_word4 & IOERR_PARAM_MASK)) {
                        case IOERR_ABORT_IN_PROGRESS:
                        case IOERR_SEQUENCE_TIMEOUT:
                        case IOERR_ILLEGAL_FRAME:
                        case IOERR_NO_RESOURCES:
                        case IOERR_ILLEGAL_COMMAND:
                                cmdiocb->retry++;
                                if (cmdiocb->retry >= LPFC_FDMI_MAX_RETRY)
                                        break;

                                /* Retry the same FDMI command */
                                err = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING,
                                                          cmdiocb, 0);
                                if (err == IOCB_ERROR)
                                        break;
                                return;
                        default:
                                break;
                        }
                }
        }

        free_ndlp = cmdiocb->ndlp;
        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(free_ndlp);

        if (ulp_status != IOSTAT_SUCCESS)
                return;

        ndlp = lpfc_findnode_did(vport, FDMI_DID);
        if (!ndlp)
                return;

        /* Check for a CT LS_RJT response */
        cmd =  be16_to_cpu(fdmi_cmd);
        if (be16_to_cpu(fdmi_rsp) == SLI_CT_RESPONSE_FS_RJT) {
                /* Log FDMI reject */
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_ELS,
                                 "0220 FDMI cmd FS_RJT Data: x%x", cmd);

                /* Should we fallback to FDMI-2 / FDMI-1 ? */
                switch (cmd) {
                case SLI_MGMT_RHBA:
                        if (vport->fdmi_hba_mask == LPFC_FDMI2_HBA_ATTR) {
                                /* Fallback to FDMI-1 for HBA attributes */
                                vport->fdmi_hba_mask = LPFC_FDMI1_HBA_ATTR;

                                /* If HBA attributes are FDMI1, so should
                                 * port attributes be for consistency.
                                 */
                                vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
                                /* Start over */
                                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
                        }
                        return;

                case SLI_MGMT_RPRT:
                        if (vport->port_type != LPFC_PHYSICAL_PORT) {
                                ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                                if (!ndlp)
                                        return;
                        }
                        if (vport->fdmi_port_mask == LPFC_FDMI2_PORT_ATTR) {
                                /* Fallback to FDMI-1 */
                                vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
                                /* Start over */
                                lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
                                return;
                        }
                        if (vport->fdmi_port_mask == LPFC_FDMI2_SMART_ATTR) {
                                vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
                                /* Retry the same command */
                                lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
                        }
                        return;

                case SLI_MGMT_RPA:
                        /* No retry on Vendor, RPA only done on physical port */
                        if (phba->link_flag & LS_CT_VEN_RPA) {
                                phba->link_flag &= ~LS_CT_VEN_RPA;
                                if (phba->cmf_active_mode == LPFC_CFG_OFF)
                                        return;
                                lpfc_printf_log(phba, KERN_WARNING,
                                                LOG_DISCOVERY | LOG_ELS,
                                                "6460 VEN FDMI RPA RJT\n");
                                return;
                        }
                        if (vport->fdmi_port_mask == LPFC_FDMI2_PORT_ATTR) {
                                /* Fallback to FDMI-1 */
                                vport->fdmi_hba_mask = LPFC_FDMI1_HBA_ATTR;
                                vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
                                /* Start over */
                                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
                                return;
                        }
                        if (vport->fdmi_port_mask == LPFC_FDMI2_SMART_ATTR) {
                                vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
                                /* Retry the same command */
                                lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
                        }
                        return;
                }
        }

        /*
         * On success, need to cycle thru FDMI registration for discovery
         * DHBA -> DPRT -> RHBA -> RPA  (physical port)
         * DPRT -> RPRT (vports)
         */
        switch (cmd) {
        case SLI_MGMT_RHBA:
                /* Check for any RPRTs deferred till after RHBA completes */
                lpfc_fdmi_rprt_defer(phba, vport->fdmi_port_mask);

                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA, 0);
                break;

        case SLI_MGMT_DHBA:
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
                break;

        case SLI_MGMT_DPRT:
                if (vport->port_type == LPFC_PHYSICAL_PORT) {
                        lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RHBA, 0);
                } else {
                        ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                        if (!ndlp)
                                return;

                        /* Only issue a RPRT for the vport if the RHBA
                         * for the physical port completes successfully.
                         * We may have to defer the RPRT accordingly.
                         */
                        if (test_bit(HBA_RHBA_CMPL, &phba->hba_flag)) {
                                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT, 0);
                        } else {
                                lpfc_printf_vlog(vport, KERN_INFO,
                                                 LOG_DISCOVERY,
                                                 "6078 RPRT deferred\n");
                                vport->ct_flags |= FC_CT_RPRT_DEFER;
                        }
                }
                break;
        case SLI_MGMT_RPA:
                if (vport->port_type == LPFC_PHYSICAL_PORT &&
                    phba->sli4_hba.pc_sli4_params.mi_ver) {
                        /* mi is only for the phyical port, no vports */
                        if (phba->link_flag & LS_CT_VEN_RPA) {
                                lpfc_printf_vlog(vport, KERN_INFO,
                                                 LOG_DISCOVERY | LOG_ELS |
                                                 LOG_CGN_MGMT,
                                                 "6449 VEN RPA FDMI Success\n");
                                phba->link_flag &= ~LS_CT_VEN_RPA;
                                break;
                        }

                        lpfc_printf_log(phba, KERN_INFO,
                                        LOG_DISCOVERY | LOG_CGN_MGMT,
                                        "6210 Issue Vendor MI FDMI %x\n",
                                        phba->sli4_hba.pc_sli4_params.mi_ver);

                        /* CGN is only for the physical port, no vports */
                        if (lpfc_fdmi_cmd(vport, ndlp, cmd,
                                          LPFC_FDMI_VENDOR_ATTR_mi) == 0)
                                phba->link_flag |= LS_CT_VEN_RPA;
                        lpfc_printf_log(phba, KERN_INFO,
                                        LOG_DISCOVERY | LOG_ELS,
                                        "6458 Send MI FDMI:%x Flag x%x\n",
                                        phba->sli4_hba.pc_sli4_params.mi_ver,
                                        phba->link_flag);
                } else {
                        lpfc_printf_log(phba, KERN_INFO,
                                        LOG_DISCOVERY | LOG_ELS,
                                        "6459 No FDMI VEN MI support - "
                                        "RPA Success\n");
                }
                break;
        }
        return;
}


/**
 * lpfc_fdmi_change_check - Check for changed FDMI parameters
 * @vport: pointer to a host virtual N_Port data structure.
 *
 * Check how many mapped NPorts we are connected to
 * Check if our hostname changed
 * Called from hbeat timeout routine to check if any FDMI parameters
 * changed. If so, re-register those Attributes.
 */
void
lpfc_fdmi_change_check(struct lpfc_vport *vport)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_nodelist *ndlp;
        uint16_t cnt;

        if (!lpfc_is_link_up(phba))
                return;

        /* Must be connected to a Fabric */
        if (!test_bit(FC_FABRIC, &vport->fc_flag))
                return;

        ndlp = lpfc_findnode_did(vport, FDMI_DID);
        if (!ndlp)
                return;

        /* Check if system hostname changed */
        if (strcmp(phba->os_host_name, init_utsname()->nodename)) {
                memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
                scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
                          init_utsname()->nodename);
                lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);

                /* Since this effects multiple HBA and PORT attributes, we need
                 * de-register and go thru the whole FDMI registration cycle.
                 * DHBA -> DPRT -> RHBA -> RPA  (physical port)
                 * DPRT -> RPRT (vports)
                 */
                if (vport->port_type == LPFC_PHYSICAL_PORT) {
                        /* For extra Vendor RPA */
                        phba->link_flag &= ~LS_CT_VEN_RPA;
                        lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
                } else {
                        ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                        if (!ndlp)
                                return;
                        lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
                }

                /* Since this code path registers all the port attributes
                 * we can just return without further checking.
                 */
                return;
        }

        if (!(vport->fdmi_port_mask & LPFC_FDMI_PORT_ATTR_num_disc))
                return;

        /* Check if the number of mapped NPorts changed */
        cnt = lpfc_find_map_node(vport);
        if (cnt == vport->fdmi_num_disc)
                return;

        if (vport->port_type == LPFC_PHYSICAL_PORT) {
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA,
                              LPFC_FDMI_PORT_ATTR_num_disc);
        } else {
                ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                if (!ndlp)
                        return;
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT,
                              LPFC_FDMI_PORT_ATTR_num_disc);
        }
}

static inline int
lpfc_fdmi_set_attr_u32(void *attr, uint16_t attrtype, uint32_t attrval)
{
        struct lpfc_fdmi_attr_u32 *ae = attr;
        int size = sizeof(*ae);

        ae->type = cpu_to_be16(attrtype);
        ae->len = cpu_to_be16(size);
        ae->value_u32 = cpu_to_be32(attrval);

        return size;
}

static inline int
lpfc_fdmi_set_attr_wwn(void *attr, uint16_t attrtype, struct lpfc_name *wwn)
{
        struct lpfc_fdmi_attr_wwn *ae = attr;
        int size = sizeof(*ae);

        ae->type = cpu_to_be16(attrtype);
        ae->len = cpu_to_be16(size);
        /* WWN's assumed to be bytestreams - Big Endian presentation */
        memcpy(ae->name, wwn,
               min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));

        return size;
}

static inline int
lpfc_fdmi_set_attr_fullwwn(void *attr, uint16_t attrtype,
                           struct lpfc_name *wwnn, struct lpfc_name *wwpn)
{
        struct lpfc_fdmi_attr_fullwwn *ae = attr;
        u8 *nname = ae->nname;
        u8 *pname = ae->pname;
        int size = sizeof(*ae);

        ae->type = cpu_to_be16(attrtype);
        ae->len = cpu_to_be16(size);
        /* WWN's assumed to be bytestreams - Big Endian presentation */
        memcpy(nname, wwnn,
               min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
        memcpy(pname, wwpn,
               min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));

        return size;
}

static inline int
lpfc_fdmi_set_attr_string(void *attr, uint16_t attrtype, char *attrstring)
{
        struct lpfc_fdmi_attr_string *ae = attr;
        int len, size;

        /*
         * We are trusting the caller that if a fdmi string field
         * is capped at 64 bytes, the caller passes in a string of
         * 64 bytes or less.
         */

        strscpy(ae->value_string, attrstring, sizeof(ae->value_string));
        len = strnlen(ae->value_string, sizeof(ae->value_string));
        /* round string length to a 32bit boundary */
        len += (len & 3) ? (4 - (len & 3)) : 4;
        /* size is Type/Len (4 bytes) plus string length */
        size = FOURBYTES + len;

        ae->type = cpu_to_be16(attrtype);
        ae->len = cpu_to_be16(size);

        return size;
}

/* Bitfields for FC4 Types that can be reported */
#define ATTR_FC4_CT     0x00000001
#define ATTR_FC4_FCP    0x00000002
#define ATTR_FC4_NVME   0x00000004

static inline int
lpfc_fdmi_set_attr_fc4types(void *attr, uint16_t attrtype, uint32_t typemask)
{
        struct lpfc_fdmi_attr_fc4types *ae = attr;
        int size = sizeof(*ae);

        ae->type = cpu_to_be16(attrtype);
        ae->len = cpu_to_be16(size);

        if (typemask & ATTR_FC4_FCP)
                ae->value_types[2] = 0x01; /* Type 0x8 - FCP */

        if (typemask & ATTR_FC4_CT)
                ae->value_types[7] = 0x01; /* Type 0x20 - CT */

        if (typemask & ATTR_FC4_NVME)
                ae->value_types[6] = 0x01; /* Type 0x28 - NVME */

        return size;
}

/* Routines for all individual HBA attributes */
static int
lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_wwn(attr, RHBA_NODENAME,
                        &vport->fc_sparam.nodeName);
}

static int
lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport, void *attr)
{
        /* This string MUST be consistent with other FC platforms
         * supported by Broadcom.
         */
        return lpfc_fdmi_set_attr_string(attr, RHBA_MANUFACTURER,
                        "Emulex Corporation");
}

static int
lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;

        return lpfc_fdmi_set_attr_string(attr, RHBA_SERIAL_NUMBER,
                        phba->SerialNumber);
}

static int
lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;

        return lpfc_fdmi_set_attr_string(attr, RHBA_MODEL,
                        phba->ModelName);
}

static int
lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;

        return lpfc_fdmi_set_attr_string(attr, RHBA_MODEL_DESCRIPTION,
                        phba->ModelDesc);
}

static int
lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;
        lpfc_vpd_t *vp = &phba->vpd;
        char buf[16] = { 0 };

        snprintf(buf, sizeof(buf), "%08x", vp->rev.biuRev);

        return lpfc_fdmi_set_attr_string(attr, RHBA_HARDWARE_VERSION, buf);
}

static int
lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_string(attr, RHBA_DRIVER_VERSION,
                        lpfc_release_version);
}

static int
lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;
        char buf[64] = { 0 };

        if (phba->sli_rev == LPFC_SLI_REV4) {
                lpfc_decode_firmware_rev(phba, buf, 1);

                return lpfc_fdmi_set_attr_string(attr, RHBA_OPTION_ROM_VERSION,
                                buf);
        }

        return lpfc_fdmi_set_attr_string(attr, RHBA_OPTION_ROM_VERSION,
                        phba->OptionROMVersion);
}

static int
lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;
        char buf[64] = { 0 };

        lpfc_decode_firmware_rev(phba, buf, 1);

        return lpfc_fdmi_set_attr_string(attr, RHBA_FIRMWARE_VERSION, buf);
}

static int
lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport, void *attr)
{
        char buf[256] = { 0 };

        snprintf(buf, sizeof(buf), "%s %s %s",
                 init_utsname()->sysname,
                 init_utsname()->release,
                 init_utsname()->version);

        return lpfc_fdmi_set_attr_string(attr, RHBA_OS_NAME_VERSION, buf);
}

static int
lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RHBA_MAX_CT_PAYLOAD_LEN,
                        LPFC_MAX_CT_SIZE);
}

static int
lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport, void *attr)
{
        char buf[256] = { 0 };

        lpfc_vport_symbolic_node_name(vport, buf, sizeof(buf));

        return lpfc_fdmi_set_attr_string(attr, RHBA_SYM_NODENAME, buf);
}

static int
lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RHBA_VENDOR_INFO, 0);
}

static int
lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport, void *attr)
{
        /* Each driver instance corresponds to a single port */
        return lpfc_fdmi_set_attr_u32(attr, RHBA_NUM_PORTS, 1);
}

static int
lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_wwn(attr, RHBA_FABRIC_WWNN,
                        &vport->fabric_nodename);
}

static int
lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;

        return lpfc_fdmi_set_attr_string(attr, RHBA_BIOS_VERSION,
                        phba->BIOSVersion);
}

static int
lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport, void *attr)
{
        /* Driver doesn't have access to this information */
        return lpfc_fdmi_set_attr_u32(attr, RHBA_BIOS_STATE, 0);
}

static int
lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_string(attr, RHBA_VENDOR_ID, "EMULEX");
}

/*
 * Routines for all individual PORT attributes
 */

static int
lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba   *phba = vport->phba;
        u32 fc4types;

        fc4types = (ATTR_FC4_CT | ATTR_FC4_FCP);

        /* Check to see if Firmware supports NVME and on physical port */
        if ((phba->sli_rev == LPFC_SLI_REV4) && (vport == phba->pport) &&
            phba->sli4_hba.pc_sli4_params.nvme)
                fc4types |= ATTR_FC4_NVME;

        return lpfc_fdmi_set_attr_fc4types(attr, RPRT_SUPPORTED_FC4_TYPES,
                        fc4types);
}

static int
lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;
        u32 speeds = 0;
        u32 tcfg;
        u8 i, cnt;

        if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) {
                cnt = 0;
                if (phba->sli_rev == LPFC_SLI_REV4) {
                        tcfg = phba->sli4_hba.conf_trunk;
                        for (i = 0; i < 4; i++, tcfg >>= 1)
                                if (tcfg & 1)
                                        cnt++;
                }

                if (cnt > 2) { /* 4 lane trunk group */
                        if (phba->lmt & LMT_64Gb)
                                speeds |= HBA_PORTSPEED_256GFC;
                        if (phba->lmt & LMT_32Gb)
                                speeds |= HBA_PORTSPEED_128GFC;
                        if (phba->lmt & LMT_16Gb)
                                speeds |= HBA_PORTSPEED_64GFC;
                } else if (cnt) { /* 2 lane trunk group */
                        if (phba->lmt & LMT_128Gb)
                                speeds |= HBA_PORTSPEED_256GFC;
                        if (phba->lmt & LMT_64Gb)
                                speeds |= HBA_PORTSPEED_128GFC;
                        if (phba->lmt & LMT_32Gb)
                                speeds |= HBA_PORTSPEED_64GFC;
                        if (phba->lmt & LMT_16Gb)
                                speeds |= HBA_PORTSPEED_32GFC;
                } else {
                        if (phba->lmt & LMT_256Gb)
                                speeds |= HBA_PORTSPEED_256GFC;
                        if (phba->lmt & LMT_128Gb)
                                speeds |= HBA_PORTSPEED_128GFC;
                        if (phba->lmt & LMT_64Gb)
                                speeds |= HBA_PORTSPEED_64GFC;
                        if (phba->lmt & LMT_32Gb)
                                speeds |= HBA_PORTSPEED_32GFC;
                        if (phba->lmt & LMT_16Gb)
                                speeds |= HBA_PORTSPEED_16GFC;
                        if (phba->lmt & LMT_10Gb)
                                speeds |= HBA_PORTSPEED_10GFC;
                        if (phba->lmt & LMT_8Gb)
                                speeds |= HBA_PORTSPEED_8GFC;
                        if (phba->lmt & LMT_4Gb)
                                speeds |= HBA_PORTSPEED_4GFC;
                        if (phba->lmt & LMT_2Gb)
                                speeds |= HBA_PORTSPEED_2GFC;
                        if (phba->lmt & LMT_1Gb)
                                speeds |= HBA_PORTSPEED_1GFC;
                }
        } else {
                /* FCoE links support only one speed */
                switch (phba->fc_linkspeed) {
                case LPFC_ASYNC_LINK_SPEED_10GBPS:
                        speeds = HBA_PORTSPEED_10GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_25GBPS:
                        speeds = HBA_PORTSPEED_25GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_40GBPS:
                        speeds = HBA_PORTSPEED_40GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_100GBPS:
                        speeds = HBA_PORTSPEED_100GE;
                        break;
                }
        }

        return lpfc_fdmi_set_attr_u32(attr, RPRT_SUPPORTED_SPEED, speeds);
}

static int
lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba   *phba = vport->phba;
        u32 speeds = 0;

        if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) {
                switch (phba->fc_linkspeed) {
                case LPFC_LINK_SPEED_1GHZ:
                        speeds = HBA_PORTSPEED_1GFC;
                        break;
                case LPFC_LINK_SPEED_2GHZ:
                        speeds = HBA_PORTSPEED_2GFC;
                        break;
                case LPFC_LINK_SPEED_4GHZ:
                        speeds = HBA_PORTSPEED_4GFC;
                        break;
                case LPFC_LINK_SPEED_8GHZ:
                        speeds = HBA_PORTSPEED_8GFC;
                        break;
                case LPFC_LINK_SPEED_10GHZ:
                        speeds = HBA_PORTSPEED_10GFC;
                        break;
                case LPFC_LINK_SPEED_16GHZ:
                        speeds = HBA_PORTSPEED_16GFC;
                        break;
                case LPFC_LINK_SPEED_32GHZ:
                        speeds = HBA_PORTSPEED_32GFC;
                        break;
                case LPFC_LINK_SPEED_64GHZ:
                        speeds = HBA_PORTSPEED_64GFC;
                        break;
                case LPFC_LINK_SPEED_128GHZ:
                        speeds = HBA_PORTSPEED_128GFC;
                        break;
                case LPFC_LINK_SPEED_256GHZ:
                        speeds = HBA_PORTSPEED_256GFC;
                        break;
                default:
                        speeds = HBA_PORTSPEED_UNKNOWN;
                        break;
                }
        } else {
                switch (phba->fc_linkspeed) {
                case LPFC_ASYNC_LINK_SPEED_10GBPS:
                        speeds = HBA_PORTSPEED_10GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_25GBPS:
                        speeds = HBA_PORTSPEED_25GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_40GBPS:
                        speeds = HBA_PORTSPEED_40GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_100GBPS:
                        speeds = HBA_PORTSPEED_100GE;
                        break;
                default:
                        speeds = HBA_PORTSPEED_UNKNOWN;
                        break;
                }
        }

        return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_SPEED, speeds);
}

static int
lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport, void *attr)
{
        struct serv_parm *hsp = (struct serv_parm *)&vport->fc_sparam;

        return lpfc_fdmi_set_attr_u32(attr, RPRT_MAX_FRAME_SIZE,
                        (((uint32_t)hsp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
                          (uint32_t)hsp->cmn.bbRcvSizeLsb);
}

static int
lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport, void *attr)
{
        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
        char buf[64] = { 0 };

        snprintf(buf, sizeof(buf), "/sys/class/scsi_host/host%d",
                 shost->host_no);

        return lpfc_fdmi_set_attr_string(attr, RPRT_OS_DEVICE_NAME, buf);
}

static int
lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport, void *attr)
{
        char buf[64] = { 0 };

        scnprintf(buf, sizeof(buf), "%s", vport->phba->os_host_name);

        return lpfc_fdmi_set_attr_string(attr, RPRT_HOST_NAME, buf);
}

static int
lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_wwn(attr, RPRT_NODENAME,
                        &vport->fc_sparam.nodeName);
}

static int
lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_wwn(attr, RPRT_PORTNAME,
                        &vport->fc_sparam.portName);
}

static int
lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport, void *attr)
{
        char buf[256] = { 0 };

        lpfc_vport_symbolic_port_name(vport, buf, sizeof(buf));

        return lpfc_fdmi_set_attr_string(attr, RPRT_SYM_PORTNAME, buf);
}

static int
lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;

        return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_TYPE,
                        (phba->fc_topology == LPFC_TOPOLOGY_LOOP) ?
                                LPFC_FDMI_PORTTYPE_NLPORT :
                                LPFC_FDMI_PORTTYPE_NPORT);
}

static int
lpfc_fdmi_port_attr_class(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RPRT_SUPPORTED_CLASS,
                        FC_COS_CLASS2 | FC_COS_CLASS3);
}

static int
lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_wwn(attr, RPRT_FABRICNAME,
                        &vport->fabric_portname);
}

static int
lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;
        u32 fc4types;

        fc4types = (ATTR_FC4_CT | ATTR_FC4_FCP);

        /* Check to see if NVME is configured or not */
        if (vport == phba->pport &&
            phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
                fc4types |= ATTR_FC4_NVME;

        return lpfc_fdmi_set_attr_fc4types(attr, RPRT_ACTIVE_FC4_TYPES,
                        fc4types);
}

static int
lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_STATE,
                        LPFC_FDMI_PORTSTATE_ONLINE);
}

static int
lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport, void *attr)
{
        vport->fdmi_num_disc = lpfc_find_map_node(vport);

        return lpfc_fdmi_set_attr_u32(attr, RPRT_DISC_PORT,
                        vport->fdmi_num_disc);
}

static int
lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_ID, vport->fc_myDID);
}

static int
lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_SERVICE,
                        "Smart SAN Initiator");
}

static int
lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_fullwwn(attr, RPRT_SMART_GUID,
                        &vport->fc_sparam.nodeName,
                        &vport->fc_sparam.portName);
}

static int
lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_VERSION,
                        "Smart SAN Version 2.0");
}

static int
lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;

        return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_MODEL,
                        phba->ModelName);
}

static int
lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport, void *attr)
{
        /* SRIOV (type 3) is not supported */

        return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_PORT_INFO,
                        (vport->vpi) ?  2 /* NPIV */ : 1 /* Physical */);
}

static int
lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_QOS, 0);
}

static int
lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport, void *attr)
{
        return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_SECURITY, 1);
}

static int
lpfc_fdmi_vendor_attr_mi(struct lpfc_vport *vport, void *attr)
{
        struct lpfc_hba *phba = vport->phba;
        char buf[32] = { 0 };

        sprintf(buf, "ELXE2EM:%04d", phba->sli4_hba.pc_sli4_params.mi_ver);

        return lpfc_fdmi_set_attr_string(attr, RPRT_VENDOR_MI, buf);
}

/* RHBA attribute jump table */
static int (*lpfc_fdmi_hba_action[])
        (struct lpfc_vport *vport, void *attrbuf) = {
        /* Action routine                 Mask bit     Attribute type */
        lpfc_fdmi_hba_attr_wwnn,          /* bit0     RHBA_NODENAME           */
        lpfc_fdmi_hba_attr_manufacturer,  /* bit1     RHBA_MANUFACTURER       */
        lpfc_fdmi_hba_attr_sn,            /* bit2     RHBA_SERIAL_NUMBER      */
        lpfc_fdmi_hba_attr_model,         /* bit3     RHBA_MODEL              */
        lpfc_fdmi_hba_attr_description,   /* bit4     RHBA_MODEL_DESCRIPTION  */
        lpfc_fdmi_hba_attr_hdw_ver,       /* bit5     RHBA_HARDWARE_VERSION   */
        lpfc_fdmi_hba_attr_drvr_ver,      /* bit6     RHBA_DRIVER_VERSION     */
        lpfc_fdmi_hba_attr_rom_ver,       /* bit7     RHBA_OPTION_ROM_VERSION */
        lpfc_fdmi_hba_attr_fmw_ver,       /* bit8     RHBA_FIRMWARE_VERSION   */
        lpfc_fdmi_hba_attr_os_ver,        /* bit9     RHBA_OS_NAME_VERSION    */
        lpfc_fdmi_hba_attr_ct_len,        /* bit10    RHBA_MAX_CT_PAYLOAD_LEN */
        lpfc_fdmi_hba_attr_symbolic_name, /* bit11    RHBA_SYM_NODENAME       */
        lpfc_fdmi_hba_attr_vendor_info,   /* bit12    RHBA_VENDOR_INFO        */
        lpfc_fdmi_hba_attr_num_ports,     /* bit13    RHBA_NUM_PORTS          */
        lpfc_fdmi_hba_attr_fabric_wwnn,   /* bit14    RHBA_FABRIC_WWNN        */
        lpfc_fdmi_hba_attr_bios_ver,      /* bit15    RHBA_BIOS_VERSION       */
        lpfc_fdmi_hba_attr_bios_state,    /* bit16    RHBA_BIOS_STATE         */
        lpfc_fdmi_hba_attr_vendor_id,     /* bit17    RHBA_VENDOR_ID          */
};

/* RPA / RPRT attribute jump table */
static int (*lpfc_fdmi_port_action[])
        (struct lpfc_vport *vport, void *attrbuf) = {
        /* Action routine                   Mask bit   Attribute type */
        lpfc_fdmi_port_attr_fc4type,        /* bit0   RPRT_SUPPORT_FC4_TYPES  */
        lpfc_fdmi_port_attr_support_speed,  /* bit1   RPRT_SUPPORTED_SPEED    */
        lpfc_fdmi_port_attr_speed,          /* bit2   RPRT_PORT_SPEED         */
        lpfc_fdmi_port_attr_max_frame,      /* bit3   RPRT_MAX_FRAME_SIZE     */
        lpfc_fdmi_port_attr_os_devname,     /* bit4   RPRT_OS_DEVICE_NAME     */
        lpfc_fdmi_port_attr_host_name,      /* bit5   RPRT_HOST_NAME          */
        lpfc_fdmi_port_attr_wwnn,           /* bit6   RPRT_NODENAME           */
        lpfc_fdmi_port_attr_wwpn,           /* bit7   RPRT_PORTNAME           */
        lpfc_fdmi_port_attr_symbolic_name,  /* bit8   RPRT_SYM_PORTNAME       */
        lpfc_fdmi_port_attr_port_type,      /* bit9   RPRT_PORT_TYPE          */
        lpfc_fdmi_port_attr_class,          /* bit10  RPRT_SUPPORTED_CLASS    */
        lpfc_fdmi_port_attr_fabric_wwpn,    /* bit11  RPRT_FABRICNAME         */
        lpfc_fdmi_port_attr_active_fc4type, /* bit12  RPRT_ACTIVE_FC4_TYPES   */
        lpfc_fdmi_port_attr_port_state,     /* bit13  RPRT_PORT_STATE         */
        lpfc_fdmi_port_attr_num_disc,       /* bit14  RPRT_DISC_PORT          */
        lpfc_fdmi_port_attr_nportid,        /* bit15  RPRT_PORT_ID            */
        lpfc_fdmi_smart_attr_service,       /* bit16  RPRT_SMART_SERVICE      */
        lpfc_fdmi_smart_attr_guid,          /* bit17  RPRT_SMART_GUID         */
        lpfc_fdmi_smart_attr_version,       /* bit18  RPRT_SMART_VERSION      */
        lpfc_fdmi_smart_attr_model,         /* bit19  RPRT_SMART_MODEL        */
        lpfc_fdmi_smart_attr_port_info,     /* bit20  RPRT_SMART_PORT_INFO    */
        lpfc_fdmi_smart_attr_qos,           /* bit21  RPRT_SMART_QOS          */
        lpfc_fdmi_smart_attr_security,      /* bit22  RPRT_SMART_SECURITY     */
        lpfc_fdmi_vendor_attr_mi,           /* bit23  RPRT_VENDOR_MI          */
};

/**
 * lpfc_fdmi_cmd - Build and send a FDMI cmd to the specified NPort
 * @vport: pointer to a host virtual N_Port data structure.
 * @ndlp: ndlp to send FDMI cmd to (if NULL use FDMI_DID)
 * @cmdcode: FDMI command to send
 * @new_mask: Mask of HBA or PORT Attributes to send
 *
 * Builds and sends a FDMI command using the CT subsystem.
 */
int
lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
              int cmdcode, uint32_t new_mask)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_dmabuf *rq, *rsp;
        struct lpfc_sli_ct_request *CtReq;
        struct ulp_bde64_le *bde;
        uint32_t bit_pos;
        uint32_t size, addsz;
        uint32_t rsp_size;
        uint32_t mask;
        struct lpfc_fdmi_reg_hba *rh;
        struct lpfc_fdmi_port_entry *pe;
        struct lpfc_fdmi_reg_portattr *pab = NULL, *base = NULL;
        struct lpfc_fdmi_attr_block *ab = NULL;
        int  (*func)(struct lpfc_vport *vport, void *attrbuf);
        void (*cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                     struct lpfc_iocbq *rspiocb);

        if (!ndlp)
                return 0;

        cmpl = lpfc_cmpl_ct_disc_fdmi; /* called from discovery */

        /* fill in BDEs for command */
        /* Allocate buffer for command payload */
        rq = kmalloc_obj(*rq);
        if (!rq)
                goto fdmi_cmd_exit;

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

        /* Allocate buffer for Buffer ptr list */
        rsp = kmalloc_obj(*rsp);
        if (!rsp)
                goto fdmi_cmd_free_rqvirt;

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

        INIT_LIST_HEAD(&rq->list);
        INIT_LIST_HEAD(&rsp->list);

        /* mbuf buffers are 1K in length - aka LPFC_BPL_SIZE */
        memset(rq->virt, 0, LPFC_BPL_SIZE);
        rsp_size = LPFC_BPL_SIZE;

        /* FDMI request */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0218 FDMI Request x%x mask x%x Data: x%x x%lx x%x\n",
                         cmdcode, new_mask, vport->fdmi_port_mask,
                         vport->fc_flag, vport->port_state);

        CtReq = (struct lpfc_sli_ct_request *)rq->virt;

        /* First populate the CT_IU preamble */
        CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
        CtReq->RevisionId.bits.InId = 0;

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

        CtReq->CommandResponse.bits.CmdRsp = cpu_to_be16(cmdcode);

        size = 0;

        /* Next fill in the specific FDMI cmd information */
        switch (cmdcode) {
        case SLI_MGMT_RHAT:
        case SLI_MGMT_RHBA:
                rh = (struct lpfc_fdmi_reg_hba *)&CtReq->un;
                /* HBA Identifier */
                memcpy(&rh->hi.PortName, &phba->pport->fc_sparam.portName,
                       sizeof(struct lpfc_name));
                size += sizeof(struct lpfc_fdmi_hba_ident);

                if (cmdcode == SLI_MGMT_RHBA) {
                        /* Registered Port List */
                        /* One entry (port) per adapter */
                        rh->rpl.EntryCnt = cpu_to_be32(1);
                        memcpy(&rh->rpl.pe.PortName,
                               &phba->pport->fc_sparam.portName,
                               sizeof(struct lpfc_name));
                        size += sizeof(struct lpfc_fdmi_reg_port_list);
                }

                ab = (struct lpfc_fdmi_attr_block *)((uint8_t *)rh + size);
                ab->EntryCnt = 0;
                size += FOURBYTES;      /* add length of EntryCnt field */

                bit_pos = 0;
                if (new_mask)
                        mask = new_mask;
                else
                        mask = vport->fdmi_hba_mask;

                /* Mask will dictate what attributes to build in the request */
                while (mask) {
                        if (mask & 0x1) {
                                func = lpfc_fdmi_hba_action[bit_pos];
                                addsz = func(vport, ((uint8_t *)rh + size));
                                if (addsz) {
                                        ab->EntryCnt++;
                                        size += addsz;
                                }
                                /* check if another attribute fits */
                                if ((size + FDMI_MAX_ATTRLEN) >
                                    (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
                                        goto hba_out;
                        }
                        mask = mask >> 1;
                        bit_pos++;
                }
hba_out:
                ab->EntryCnt = cpu_to_be32(ab->EntryCnt);
                /* Total size */
                size += GID_REQUEST_SZ - 4;
                break;

        case SLI_MGMT_RPRT:
                if (vport->port_type != LPFC_PHYSICAL_PORT) {
                        ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                        if (!ndlp)
                                return 0;
                }
                fallthrough;
        case SLI_MGMT_RPA:
                /* Store base ptr right after preamble */
                base = (struct lpfc_fdmi_reg_portattr *)&CtReq->un;

                if (cmdcode == SLI_MGMT_RPRT) {
                        rh = (struct lpfc_fdmi_reg_hba *)base;
                        /* HBA Identifier */
                        memcpy(&rh->hi.PortName,
                               &phba->pport->fc_sparam.portName,
                               sizeof(struct lpfc_name));
                        pab = (struct lpfc_fdmi_reg_portattr *)
                                ((uint8_t *)base + sizeof(struct lpfc_name));
                        size += sizeof(struct lpfc_name);
                } else {
                        pab = base;
                }

                memcpy((uint8_t *)&pab->PortName,
                       (uint8_t *)&vport->fc_sparam.portName,
                       sizeof(struct lpfc_name));
                pab->ab.EntryCnt = 0;
                /* add length of name and EntryCnt field */
                size += sizeof(struct lpfc_name) + FOURBYTES;

                bit_pos = 0;
                if (new_mask)
                        mask = new_mask;
                else
                        mask = vport->fdmi_port_mask;

                /* Mask will dictate what attributes to build in the request */
                while (mask) {
                        if (mask & 0x1) {
                                func = lpfc_fdmi_port_action[bit_pos];
                                addsz = func(vport, ((uint8_t *)base + size));
                                if (addsz) {
                                        pab->ab.EntryCnt++;
                                        size += addsz;
                                }
                                /* check if another attribute fits */
                                if ((size + FDMI_MAX_ATTRLEN) >
                                    (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
                                        goto port_out;
                        }
                        mask = mask >> 1;
                        bit_pos++;
                }
port_out:
                pab->ab.EntryCnt = cpu_to_be32(pab->ab.EntryCnt);
                size += GID_REQUEST_SZ - 4;
                break;

        case SLI_MGMT_GHAT:
        case SLI_MGMT_GRPL:
                rsp_size = FC_MAX_NS_RSP;
                fallthrough;
        case SLI_MGMT_DHBA:
        case SLI_MGMT_DHAT:
                pe = (struct lpfc_fdmi_port_entry *)&CtReq->un;
                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_GPAT:
        case SLI_MGMT_GPAS:
                rsp_size = FC_MAX_NS_RSP;
                fallthrough;
        case SLI_MGMT_DPRT:
                if (vport->port_type != LPFC_PHYSICAL_PORT) {
                        ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
                        if (!ndlp)
                                return 0;
                }
                fallthrough;
        case SLI_MGMT_DPA:
                pe = (struct lpfc_fdmi_port_entry *)&CtReq->un;
                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_GRHL:
                size = GID_REQUEST_SZ - 4;
                break;
        default:
                lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
                                 "0298 FDMI cmdcode x%x not supported\n",
                                 cmdcode);
                goto fdmi_cmd_free_rspvirt;
        }
        CtReq->CommandResponse.bits.Size = cpu_to_be16(rsp_size);

        bde = (struct ulp_bde64_le *)rsp->virt;
        bde->addr_high = cpu_to_le32(putPaddrHigh(rq->phys));
        bde->addr_low = cpu_to_le32(putPaddrLow(rq->phys));
        bde->type_size = cpu_to_le32(ULP_BDE64_TYPE_BDE_64 <<
                                     ULP_BDE64_TYPE_SHIFT);
        bde->type_size |= cpu_to_le32(size);

        /*
         * 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, rq, rsp, ndlp, cmpl, rsp_size, 0))
                return 0;

fdmi_cmd_free_rspvirt:
        lpfc_mbuf_free(phba, rsp->virt, rsp->phys);
fdmi_cmd_free_rsp:
        kfree(rsp);
fdmi_cmd_free_rqvirt:
        lpfc_mbuf_free(phba, rq->virt, rq->phys);
fdmi_cmd_free_rq:
        kfree(rq);
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.
 * @t: 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(struct timer_list *t)
{
        struct lpfc_vport *vport = timer_container_of(vport, t,
                                                      delayed_disc_tmo);
        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)
{
        if (!test_and_clear_bit(FC_DISC_DELAYED, &vport->fc_flag))
                return;

        lpfc_do_scr_ns_plogi(vport->phba, vport);
}

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;
}

static void
lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                      struct lpfc_iocbq *rspiocb)
{
        struct lpfc_vport *vport = cmdiocb->vport;
        struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
        struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
        struct lpfc_sli_ct_request *ctcmd = inp->virt;
        struct lpfc_sli_ct_request *ctrsp = outp->virt;
        __be16 rsp = ctrsp->CommandResponse.bits.CmdRsp;
        struct app_id_object *app;
        struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
        u32 cmd, hash, bucket;
        struct lpfc_vmid *vmp, *cur;
        u8 *data = outp->virt;
        int i;

        cmd = be16_to_cpu(ctcmd->CommandResponse.bits.CmdRsp);
        if (cmd == SLI_CTAS_DALLAPP_ID)
                lpfc_ct_free_iocb(phba, cmdiocb);

        if (lpfc_els_chk_latt(vport) || get_job_ulpstatus(phba, rspiocb)) {
                if (cmd != SLI_CTAS_DALLAPP_ID)
                        goto free_res;
        }
        /* Check for a CT LS_RJT response */
        if (be16_to_cpu(rsp) == SLI_CT_RESPONSE_FS_RJT) {
                if (cmd != SLI_CTAS_DALLAPP_ID)
                        lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                         "3306 VMID FS_RJT Data: x%x x%x x%x\n",
                                         cmd, ctrsp->ReasonCode,
                                         ctrsp->Explanation);
                if ((cmd != SLI_CTAS_DALLAPP_ID) ||
                    (ctrsp->ReasonCode != SLI_CT_UNABLE_TO_PERFORM_REQ) ||
                    (ctrsp->Explanation != SLI_CT_APP_ID_NOT_AVAILABLE)) {
                        /* If DALLAPP_ID failed retry later */
                        if (cmd == SLI_CTAS_DALLAPP_ID)
                                set_bit(FC_DEREGISTER_ALL_APP_ID,
                                        &vport->load_flag);
                        goto free_res;
                }
        }

        switch (cmd) {
        case SLI_CTAS_RAPP_IDENT:
                app = (struct app_id_object *)(RAPP_IDENT_OFFSET + data);
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "6712 RAPP_IDENT app id %d  port id x%x id "
                                 "len %d\n", be32_to_cpu(app->app_id),
                                 be32_to_cpu(app->port_id),
                                 app->obj.entity_id_len);

                if (app->obj.entity_id_len == 0 || app->port_id == 0)
                        goto free_res;

                hash = lpfc_vmid_hash_fn(app->obj.entity_id,
                                         app->obj.entity_id_len);
                vmp = lpfc_get_vmid_from_hashtable(vport, hash,
                                                  app->obj.entity_id);
                if (vmp) {
                        write_lock(&vport->vmid_lock);
                        vmp->un.app_id = be32_to_cpu(app->app_id);
                        vmp->flag |= LPFC_VMID_REGISTERED;
                        vmp->flag &= ~LPFC_VMID_REQ_REGISTER;
                        write_unlock(&vport->vmid_lock);
                        /* Set IN USE flag */
                        vport->vmid_flag |= LPFC_VMID_IN_USE;
                } else {
                        lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                         "6901 No entry found %s hash %d\n",
                                         app->obj.entity_id, hash);
                }
                break;
        case SLI_CTAS_DAPP_IDENT:
                app = (struct app_id_object *)(DAPP_IDENT_OFFSET + data);
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "6713 DAPP_IDENT app id %d  port id x%x\n",
                                 be32_to_cpu(app->app_id),
                                 be32_to_cpu(app->port_id));
                break;
        case SLI_CTAS_DALLAPP_ID:
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "8856 Deregistered all app ids\n");
                read_lock(&vport->vmid_lock);
                for (i = 0; i < phba->cfg_max_vmid; i++) {
                        vmp = &vport->vmid[i];
                        if (vmp->flag != LPFC_VMID_SLOT_FREE)
                                memset(vmp, 0, sizeof(struct lpfc_vmid));
                }
                read_unlock(&vport->vmid_lock);
                /* for all elements in the hash table */
                if (!hash_empty(vport->hash_table))
                        hash_for_each(vport->hash_table, bucket, cur, hnode)
                                hash_del(&cur->hnode);
                set_bit(FC_ALLOW_VMID, &vport->load_flag);
                break;
        default:
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "8857 Invalid command code\n");
        }
free_res:
        lpfc_ct_free_iocb(phba, cmdiocb);
        lpfc_nlp_put(ndlp);
}

/**
 * lpfc_vmid_cmd - Build and send a FDMI cmd to the specified NPort
 * @vport: pointer to a host virtual N_Port data structure.
 * @cmdcode: application server command code to send
 * @vmid: pointer to vmid info structure
 *
 * Builds and sends a FDMI command using the CT subsystem.
 */
int
lpfc_vmid_cmd(struct lpfc_vport *vport,
              int cmdcode, struct lpfc_vmid *vmid)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_dmabuf *mp, *bmp;
        struct lpfc_sli_ct_request *ctreq;
        struct ulp_bde64 *bpl;
        u32 size;
        u32 rsp_size;
        u8 *data;
        struct lpfc_vmid_rapp_ident_list *rap;
        struct lpfc_vmid_dapp_ident_list *dap;
        u8 retry = 0;
        struct lpfc_nodelist *ndlp;

        void (*cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                     struct lpfc_iocbq *rspiocb);

        ndlp = lpfc_findnode_did(vport, FDMI_DID);
        if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
                return 0;

        cmpl = lpfc_cmpl_ct_cmd_vmid;

        /* fill in BDEs for command */
        /* Allocate buffer for command payload */
        mp = kmalloc_obj(*mp);
        if (!mp)
                goto vmid_free_mp_exit;

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

        /* Allocate buffer for Buffer ptr list */
        bmp = kmalloc_obj(*bmp);
        if (!bmp)
                goto vmid_free_bmp_exit;

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

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

        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "3275 VMID Request Data: x%lx x%x x%x\n",
                         vport->fc_flag, vport->port_state, cmdcode);
        ctreq = (struct lpfc_sli_ct_request *)mp->virt;
        data = mp->virt;
        /* First populate the CT_IU preamble */
        memset(data, 0, LPFC_BPL_SIZE);
        ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
        ctreq->RevisionId.bits.InId = 0;

        ctreq->FsType = SLI_CT_MANAGEMENT_SERVICE;
        ctreq->FsSubType = SLI_CT_APP_SEV_Subtypes;

        ctreq->CommandResponse.bits.CmdRsp = cpu_to_be16(cmdcode);
        rsp_size = LPFC_BPL_SIZE;
        size = 0;

        switch (cmdcode) {
        case SLI_CTAS_RAPP_IDENT:
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "1329 RAPP_IDENT for %s\n", vmid->host_vmid);
                ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
                rap = (struct lpfc_vmid_rapp_ident_list *)
                        (DAPP_IDENT_OFFSET + data);
                rap->no_of_objects = cpu_to_be32(1);
                rap->obj[0].entity_id_len = vmid->vmid_len;
                memcpy(rap->obj[0].entity_id, vmid->host_vmid, vmid->vmid_len);
                size = RAPP_IDENT_OFFSET +
                       struct_size(rap, obj, be32_to_cpu(rap->no_of_objects));
                retry = 1;
                break;

        case SLI_CTAS_GALLAPPIA_ID:
                ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
                size = GALLAPPIA_ID_SIZE;
                break;

        case SLI_CTAS_DAPP_IDENT:
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "1469 DAPP_IDENT for %s\n", vmid->host_vmid);
                ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
                dap = (struct lpfc_vmid_dapp_ident_list *)
                        (DAPP_IDENT_OFFSET + data);
                dap->no_of_objects = cpu_to_be32(1);
                dap->obj[0].entity_id_len = vmid->vmid_len;
                memcpy(dap->obj[0].entity_id, vmid->host_vmid, vmid->vmid_len);
                size = DAPP_IDENT_OFFSET +
                       struct_size(dap, obj, be32_to_cpu(dap->no_of_objects));
                write_lock(&vport->vmid_lock);
                vmid->flag &= ~LPFC_VMID_REGISTERED;
                write_unlock(&vport->vmid_lock);
                retry = 1;
                break;

        case SLI_CTAS_DALLAPP_ID:
                ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
                size = DALLAPP_ID_SIZE;
                break;

        default:
                lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                                 "7062 VMID cmdcode x%x not supported\n",
                                 cmdcode);
                goto vmid_free_all_mem;
        }

        ctreq->CommandResponse.bits.Size = cpu_to_be16(rsp_size);

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

        /* 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))
                return 0;

 vmid_free_all_mem:
        lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
 vmid_free_bmp_virt_exit:
        kfree(bmp);
 vmid_free_bmp_exit:
        lpfc_mbuf_free(phba, mp->virt, mp->phys);
 vmid_free_mp_virt_exit:
        kfree(mp);
 vmid_free_mp_exit:

        /* Issue CT request failed */
        lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
                         "3276 VMID CT request failed Data: x%x\n", cmdcode);
        return -EIO;
}