/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2017-2021 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",
                                piocbq->iocb.ulpStatus);
        }
        lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
                        "0145 Ignoring unsolicted CT HBQ Size:%d "
                        "status = x%x\n",
                        size, piocbq->iocb.ulpStatus);
}

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

/**
 * 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 = (struct lpfc_nodelist *)cmdiocb->context1;
        if (ndlp)
                lpfc_nlp_put(ndlp);

        mp = cmdiocb->context2;
        bmp = cmdiocb->context3;
        if (mp) {
                lpfc_mbuf_free(phba, mp->virt, mp->phys);
                kfree(mp);
                cmdiocb->context2 = NULL;
        }

        if (bmp) {
                lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
                kfree(bmp);
                cmdiocb->context3 = 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.
 * @rx_id: rx_id of the 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 rx_id, 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;
        IOCB_t *icmd;
        u8 rc = 0;

        /* fill in BDEs for command */
        mp = kmalloc(sizeof(*mp), GFP_KERNEL);
        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(sizeof(*bmp), GFP_KERNEL);
        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_BLP_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;
        }

        icmd = &cmdiocbq->iocb;
        icmd->un.genreq64.bdl.ulpIoTag32 = 0;
        icmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
        icmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
        icmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
        icmd->un.genreq64.bdl.bdeSize = sizeof(struct ulp_bde64);
        icmd->un.genreq64.w5.hcsw.Fctl = (LS | LA);
        icmd->un.genreq64.w5.hcsw.Dfctl = 0;
        icmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
        icmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
        icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
        icmd->ulpBdeCount = 1;
        icmd->ulpLe = 1;
        icmd->ulpClass = CLASS3;

        /* Save for completion so we can release these resources */
        cmdiocbq->context1 = lpfc_nlp_get(ndlp);
        cmdiocbq->context2 = (uint8_t *)mp;
        cmdiocbq->context3 = (uint8_t *)bmp;
        cmdiocbq->iocb_cmpl = lpfc_ct_unsol_cmpl;
        icmd->ulpContext = rx_id;  /* Xri / rx_id */
        icmd->unsli3.rcvsli3.ox_id = ox_id;
        icmd->un.ulpWord[3] =
                phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
        icmd->ulpTimeout = (3 * phba->fc_ratov);

        cmdiocbq->retry = 0;
        cmdiocbq->vport = vport;
        cmdiocbq->context_un.ndlp = NULL;
        cmdiocbq->drvrTimeout = icmd->ulpTimeout + LPFC_DRVR_TIMEOUT;

        rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
        if (!rc)
                return;

        rc = 6;
        lpfc_nlp_put(ndlp);
        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_printf_vlog(vport, KERN_ERR, LOG_ELS,
                         "6440 Unsol CT: Rsp err %d Data: x%x\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 = NULL;
        IOCB_t *icmd = &ctiocbq->iocb;
        u32 mi_cmd, vpi;
        u32 did = 0;

        vpi = ctiocbq->iocb.unsli3.rcvsli3.vpi;
        vport = lpfc_find_vport_by_vpid(phba, vpi);
        if (!vport) {
                lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
                                "6437 Unsol CT: VPORT NULL vpi : x%x\n",
                                vpi);
                return;
        }

        did = ctiocbq->iocb.un.rcvels.remoteID;
        if (icmd->ulpStatus) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
                                 "6438 Unsol CT: status:x%x/x%x did : x%x\n",
                                 icmd->ulpStatus, icmd->un.ulpWord[4], did);
                return;
        }

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

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

        ct_req = ((struct lpfc_sli_ct_request *)
                 (((struct lpfc_dmabuf *)ctiocbq->context2)->virt));

        mi_cmd = ct_req->CommandResponse.bits.CmdRsp;
        lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
                         "6442 : MI Cmd : x%x Not Supported\n", mi_cmd);
        lpfc_ct_reject_event(ndlp, ct_req,
                             ctiocbq->iocb.ulpContext,
                             ctiocbq->iocb.unsli3.rcvsli3.ox_id);
}

/**
 * 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;
        dma_addr_t dma_addr;
        uint32_t size;
        struct list_head head;
        struct lpfc_sli_ct_request *ct_req;
        struct lpfc_dmabuf *bdeBuf1 = ctiocbq->context2;
        struct lpfc_dmabuf *bdeBuf2 = ctiocbq->context3;

        ctiocbq->context1 = NULL;
        ctiocbq->context2 = NULL;
        ctiocbq->context3 = NULL;

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

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

        if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
                ctiocbq->context2 = bdeBuf1;
                if (icmd->ulpBdeCount == 2)
                        ctiocbq->context3 = bdeBuf2;
        } else {
                dma_addr = getPaddr(icmd->un.cont64[0].addrHigh,
                                    icmd->un.cont64[0].addrLow);
                ctiocbq->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
                                                             dma_addr);
                if (icmd->ulpBdeCount == 2) {
                        dma_addr = getPaddr(icmd->un.cont64[1].addrHigh,
                                            icmd->un.cont64[1].addrLow);
                        ctiocbq->context3 = lpfc_sli_ringpostbuf_get(phba,
                                                                     pring,
                                                                     dma_addr);
                }
        }

        ct_req = ((struct lpfc_sli_ct_request *)
                 (((struct lpfc_dmabuf *)ctiocbq->context2)->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(iocbq, &head, list) {
                        icmd = &iocbq->iocb;
                        if (icmd->ulpBdeCount == 0)
                                continue;
                        bdeBuf1 = iocbq->context2;
                        iocbq->context2 = NULL;
                        size  = icmd->un.cont64[0].tus.f.bdeSize;
                        lpfc_ct_unsol_buffer(phba, ctiocbq, bdeBuf1, size);
                        lpfc_in_buf_free(phba, bdeBuf1);
                        if (icmd->ulpBdeCount == 2) {
                                bdeBuf2 = iocbq->context3;
                                iocbq->context3 = NULL;
                                size  = icmd->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_post_buffer(phba, pring, i);
                }
                list_del(&head);
        }
}

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

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

        return handled;
}

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

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

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

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

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

                INIT_LIST_HEAD(&mp->list);

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

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

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

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

                i++;
                size -= cnt;
        }

        *entries = i;
        return mlist;
}

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

        /* I/O job is complete so context is now invalid*/
        ctiocb->context_un.ndlp = NULL;
        if (ctiocb->context1) {
                buf_ptr = (struct lpfc_dmabuf *) ctiocb->context1;
                lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
                kfree(buf_ptr);
                ctiocb->context1 = NULL;
        }
        if (ctiocb->context2) {
                lpfc_free_ct_rsp(phba, (struct lpfc_dmabuf *) ctiocb->context2);
                ctiocb->context2 = NULL;
        }

        if (ctiocb->context3) {
                buf_ptr = (struct lpfc_dmabuf *) ctiocb->context3;
                lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
                kfree(buf_ptr);
                ctiocb->context3 = 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;
        IOCB_t *icmd;
        struct lpfc_iocbq *geniocb;
        int rc;

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

        if (geniocb == NULL)
                return 1;

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

        geniocb->context3 = (uint8_t *) bmp;

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

        geniocb->event_tag = event_tag;

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

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

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

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

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

        if (rc == IOCB_ERROR) {
                geniocb->context_un.ndlp = NULL;
                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;
        int cmdcode = ((struct lpfc_sli_ct_request *) inmp->virt)->
                CommandResponse.bits.CmdRsp;

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

        /* Put buffer(s) for ct rsp in bpl */
        outmp = lpfc_alloc_ct_rsp(phba, cmdcode, bpl, rsp_size, &cnt);
        if (!outmp)
                return -ENOMEM;
        /*
         * Form the CT IOCB.  The total number of BDEs in this IOCB
         * is the single command plus response count from
         * lpfc_alloc_ct_rsp.
         */
        cnt += 1;
        status = lpfc_gen_req(vport, bmp, inmp, outmp, cmpl, ndlp,
                        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%x 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%x x%x x%x x%x 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 (ndlp->nlp_flag & NLP_NPR_2B_DISC &&
                            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%x 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%x x%x x%px\n",
                                         Did, vport->fc_flag,
                                         vport->fc_rscn_id_cnt, ndlp);
                }
        } else {
                if (!(vport->fc_flag & FC_RSCN_MODE) ||
                    lpfc_rscn_payload_check(vport, Did)) {
                        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "Query GID_FTrsp: did:x%x flg:x%x cnt:%d",
                                Did, vport->fc_flag, vport->fc_rscn_id_cnt);

                        /*
                         * This NPortID was previously a FCP/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%x 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%x 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;
                        spin_lock_irq(&ndlp->lock);
                        if (ndlp->nlp_DID == Did)
                                ndlp->nlp_flag &= ~NLP_NVMET_RECOV;
                        else
                                ndlp->nlp_flag |= NLP_NVMET_RECOV;
                        spin_unlock_irq(&ndlp->lock);
                }
        }
}

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 (!(ndlp->nlp_flag & NLP_NVMET_RECOV))
                                continue;
                        lpfc_disc_state_machine(vport, ndlp, NULL,
                                                NLP_EVT_DEVICE_RECOVERY);
                        spin_lock_irq(&ndlp->lock);
                        ndlp->nlp_flag &= ~NLP_NVMET_RECOV;
                        spin_unlock_irq(&ndlp->lock);
                }
        }

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

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

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

        /* we pass cmdiocb to state machine which needs rspiocb as well */
        cmdiocb->context_un.rsp_iocb = rspiocb;
        inp = (struct lpfc_dmabuf *) cmdiocb->context1;
        outp = (struct lpfc_dmabuf *) cmdiocb->context2;
        irsp = &rspiocb->iocb;

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

        /* 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;
        }

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

        if (lpfc_els_chk_latt(vport)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0216 Link event during NS query\n");
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                goto out;
        }
        if (lpfc_error_lost_link(irsp)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0226 NS query failed due to link event\n");
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                goto out;
        }

        spin_lock_irq(shost->host_lock);
        if (vport->fc_flag & FC_RSCN_DEFERRED) {
                vport->fc_flag &= ~FC_RSCN_DEFERRED;
                spin_unlock_irq(shost->host_lock);

                /* 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%x x%x\n",
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
                lpfc_els_handle_rscn(vport);

                goto out;
        }
        spin_unlock_irq(shost->host_lock);

        if (irsp->ulpStatus) {
                /* Check for retry */
                if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                        if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
                            (irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
                            IOERR_NO_RESOURCES)
                                vport->fc_ns_retry++;

                        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 (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "0257 GID_FT Query error: 0x%x 0x%x\n",
                                 irsp->ulpStatus, 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%x x%x "
                                         "x%x x%x sz x%x\n",
                                         vport->fc_flag,
                                         CTreq->un.gid.Fc4Type,
                                         vport->num_disc_nodes,
                                         vport->gidft_inp,
                                         irsp->un.genreq64.bdl.bdeSize);

                        lpfc_ns_rsp(vport,
                                    outp,
                                    CTreq->un.gid.Fc4Type,
                                    (uint32_t) (irsp->un.genreq64.bdl.bdeSize));
                } else if (CTrsp->CommandResponse.bits.CmdRsp ==
                           be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
                        /* NameServer Rsp Error */
                        if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
                            && (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
                                lpfc_printf_vlog(vport, KERN_INFO,
                                        LOG_DISCOVERY,
                                        "0269 No NameServer Entries "
                                        "Data: x%x x%x x%x x%x\n",
                                        CTrsp->CommandResponse.bits.CmdRsp,
                                        (uint32_t) CTrsp->ReasonCode,
                                        (uint32_t) CTrsp->Explanation,
                                        vport->fc_flag);

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

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


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

                        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
                                "GID_FT rsp err2  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t) CTrsp->ReasonCode,
                                (uint32_t) CTrsp->Explanation);
                }
                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 (vport->fc_flag & FC_RSCN_MODE) {
                                lpfc_els_flush_rscn(vport);
                                spin_lock_irq(shost->host_lock);
                                vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
                                spin_unlock_irq(shost->host_lock);
                        }
                        else
                                lpfc_els_flush_rscn(vport);
                }

                lpfc_disc_start(vport);
        }
out:
        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 Scsi_Host *shost = lpfc_shost_from_vport(vport);
        IOCB_t *irsp;
        struct lpfc_dmabuf *outp;
        struct lpfc_dmabuf *inp;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_sli_ct_request *CTreq;
        struct lpfc_nodelist *ndlp;
        int rc;

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

        /* we pass cmdiocb to state machine which needs rspiocb as well */
        cmdiocb->context_un.rsp_iocb = rspiocb;
        inp = (struct lpfc_dmabuf *)cmdiocb->context1;
        outp = (struct lpfc_dmabuf *)cmdiocb->context2;
        irsp = &rspiocb->iocb;

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

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

        if (lpfc_els_chk_latt(vport)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "4108 Link event during NS query\n");
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                goto out;
        }
        if (lpfc_error_lost_link(irsp)) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "4166 NS query failed due to link event\n");
                if (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                goto out;
        }

        spin_lock_irq(shost->host_lock);
        if (vport->fc_flag & FC_RSCN_DEFERRED) {
                vport->fc_flag &= ~FC_RSCN_DEFERRED;
                spin_unlock_irq(shost->host_lock);

                /* 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%x x%x\n",
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
                lpfc_els_handle_rscn(vport);

                goto out;
        }
        spin_unlock_irq(shost->host_lock);

        if (irsp->ulpStatus) {
                /* Check for retry */
                if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                        if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
                            (irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
                            IOERR_NO_RESOURCES)
                                vport->fc_ns_retry++;

                        /* CT command is being retried */
                        rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_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 (vport->fc_flag & FC_RSCN_MODE)
                        lpfc_els_flush_rscn(vport);
                lpfc_vport_set_state(vport, FC_VPORT_FAILED);
                lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "4103 GID_FT Query error: 0x%x 0x%x\n",
                                 irsp->ulpStatus, 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,
                                         "4105 NameServer Rsp Data: x%x x%x "
                                         "x%x x%x sz x%x\n",
                                         vport->fc_flag,
                                         CTreq->un.gid.Fc4Type,
                                         vport->num_disc_nodes,
                                         vport->gidft_inp,
                                         irsp->un.genreq64.bdl.bdeSize);

                        lpfc_ns_rsp(vport,
                                    outp,
                                    CTreq->un.gid.Fc4Type,
                                    (uint32_t)(irsp->un.genreq64.bdl.bdeSize));
                } else if (CTrsp->CommandResponse.bits.CmdRsp ==
                           be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
                        /* NameServer Rsp Error */
                        if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
                            && (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
                                lpfc_printf_vlog(
                                        vport, KERN_INFO, LOG_DISCOVERY,
                                        "4106 No NameServer Entries "
                                        "Data: x%x x%x x%x x%x\n",
                                        CTrsp->CommandResponse.bits.CmdRsp,
                                        (uint32_t)CTrsp->ReasonCode,
                                        (uint32_t)CTrsp->Explanation,
                                        vport->fc_flag);

                                lpfc_debugfs_disc_trc(
                                vport, LPFC_DISC_TRC_CT,
                                "GID_PT no entry  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t)CTrsp->ReasonCode,
                                (uint32_t)CTrsp->Explanation);
                        } else {
                                lpfc_printf_vlog(
                                        vport, KERN_INFO, LOG_DISCOVERY,
                                        "4107 NameServer Rsp Error "
                                        "Data: x%x x%x x%x x%x\n",
                                        CTrsp->CommandResponse.bits.CmdRsp,
                                        (uint32_t)CTrsp->ReasonCode,
                                        (uint32_t)CTrsp->Explanation,
                                        vport->fc_flag);

                                lpfc_debugfs_disc_trc(
                                vport, LPFC_DISC_TRC_CT,
                                "GID_PT rsp err1  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t)CTrsp->ReasonCode,
                                (uint32_t)CTrsp->Explanation);
                        }
                } else {
                        /* NameServer Rsp Error */
                        lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                         "4109 NameServer Rsp Error "
                                         "Data: x%x x%x x%x x%x\n",
                                         CTrsp->CommandResponse.bits.CmdRsp,
                                         (uint32_t)CTrsp->ReasonCode,
                                         (uint32_t)CTrsp->Explanation,
                                         vport->fc_flag);

                        lpfc_debugfs_disc_trc(
                                vport, LPFC_DISC_TRC_CT,
                                "GID_PT rsp err2  cmd:x%x rsn:x%x exp:x%x",
                                (uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
                                (uint32_t)CTrsp->ReasonCode,
                                (uint32_t)CTrsp->Explanation);
                }
                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 (vport->fc_flag & FC_RSCN_MODE) {
                                lpfc_els_flush_rscn(vport);
                                spin_lock_irq(shost->host_lock);
                                vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
                                spin_unlock_irq(shost->host_lock);
                        } else {
                                lpfc_els_flush_rscn(vport);
                        }
                }

                lpfc_disc_start(vport);
        }
out:
        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 Scsi_Host *shost = lpfc_shost_from_vport(vport);
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_dmabuf *inp = (struct lpfc_dmabuf *) cmdiocb->context1;
        struct lpfc_dmabuf *outp = (struct lpfc_dmabuf *) cmdiocb->context2;
        struct lpfc_sli_ct_request *CTrsp;
        int did, rc, retry;
        uint8_t fbits;
        struct lpfc_nodelist *ndlp = NULL, *free_ndlp = NULL;

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

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

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

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

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

                        if (retry) {
                                /* CT command is being retried */
                                rc = lpfc_ns_cmd(vport, SLI_CTNS_GFF_ID,
                                         cmdiocb->retry, did);
                                if (rc == 0) {
                                        /* success */
                                        free_ndlp = cmdiocb->context_un.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%x x%x\n",
                                 did, irsp->ulpStatus, irsp->un.ulpWord[4],
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
        }

        /* This is a target port, unregistered port, or the GFF_ID failed */
        ndlp = lpfc_setup_disc_node(vport, did);
        if (ndlp) {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0242 Process x%x GFF "
                                 "NameServer Rsp Data: x%x x%x x%x\n",
                                 did, ndlp->nlp_flag, vport->fc_flag,
                                 vport->fc_rscn_id_cnt);
        } else {
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0243 Skip x%x GFF "
                                 "NameServer Rsp Data: x%x x%x\n", did,
                                 vport->fc_flag, vport->fc_rscn_id_cnt);
        }
out:
        /* Link up / RSCN discovery */
        if (vport->num_disc_nodes)
                vport->num_disc_nodes--;

        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 (vport->fc_flag & FC_RSCN_MODE) {
                                lpfc_els_flush_rscn(vport);
                                spin_lock_irq(shost->host_lock);
                                vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
                                spin_unlock_irq(shost->host_lock);
                        }
                        else
                                lpfc_els_flush_rscn(vport);
                }
                lpfc_disc_start(vport);
        }

iocb_free:
        free_ndlp = cmdiocb->context_un.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;
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_dmabuf *inp = (struct lpfc_dmabuf *)cmdiocb->context1;
        struct lpfc_dmabuf *outp = (struct lpfc_dmabuf *)cmdiocb->context2;
        struct lpfc_sli_ct_request *CTrsp;
        int did;
        struct lpfc_nodelist *ndlp = NULL;
        struct lpfc_nodelist *ns_ndlp = NULL;
        uint32_t fc4_data_0, fc4_data_1;

        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",
                              irsp->ulpStatus, irsp->un.ulpWord[4], 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;
        }

        /* Preserve the nameserver node to release the reference. */
        ns_ndlp = cmdiocb->context_un.ndlp;

        if (irsp->ulpStatus == 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,
                                         "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,
                                                 "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_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
                                 "3065 GFT_ID failed x%08x\n", irsp->ulpStatus);

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;
        IOCB_t *irsp;
        struct lpfc_sli_ct_request *CTrsp;
        struct lpfc_nodelist *ndlp;
        int cmdcode, rc;
        uint8_t retry;
        uint32_t latt;

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

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

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

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

        latt = lpfc_els_chk_latt(vport);

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

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

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

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

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

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

out:
        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)
{
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_vport *vport = cmdiocb->vport;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

/*
 * 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;
        struct Scsi_Host  *shost;
        uint32_t cnt = 0;

        shost = lpfc_shost_from_vport(vport);
        spin_lock_irq(shost->host_lock);
        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_irq(shost->host_lock);
        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->context1;
        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(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
        if (!mp) {
                rc=2;
                goto ns_cmd_exit;
        }

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

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

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

        /* NameServer Req */
        lpfc_printf_vlog(vport, KERN_INFO ,LOG_DISCOVERY,
                         "0236 NameServer Req Data: x%x x%x x%x 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_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.PortId = cpu_to_be32(vport->fc_myDID);

                /* 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.fcpReg = 1;

                /* Register NVME type if enabled.  Defined LE and swapped.
                 * rsvd[0] is used as word1 because of the hard-coded
                 * word0 usage in the ct_request data structure.
                 */
                if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
                    vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
                        CtReq->un.rft.rsvd[0] =
                                cpu_to_be32(LPFC_FC4_TYPE_BITMASK);

                ptr = (uint32_t *)CtReq;
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "6433 Issue RFT (%s %s): %08x %08x %08x %08x "
                                 "%08x %08x %08x %08x\n",
                                 CtReq->un.rft.fcpReg ? "FCP" : " ",
                                 CtReq->un.rft.rsvd[0] ? "NVME" : " ",
                                 *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_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%x x%x\n",
                         cmdcode, rc, vport->fc_flag, vport->fc_rscn_id_cnt);
        return 1;
}

/**
 * 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->context1;
        struct lpfc_dmabuf *outp = cmdiocb->context2;
        struct lpfc_sli_ct_request *CTcmd = inp->virt;
        struct lpfc_sli_ct_request *CTrsp = outp->virt;
        uint16_t fdmi_cmd = CTcmd->CommandResponse.bits.CmdRsp;
        uint16_t fdmi_rsp = CTrsp->CommandResponse.bits.CmdRsp;
        IOCB_t *irsp = &rspiocb->iocb;
        struct lpfc_nodelist *ndlp, *free_ndlp = NULL;
        uint32_t latt, cmd, err;

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

        if (latt || irsp->ulpStatus) {

                /* Look for a retryable error */
                if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
                        switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
                        case IOERR_SLI_ABORTED:
                        case IOERR_SLI_DOWN:
                                /* Driver aborted this IO.  No retry as error
                                 * is likely Offline->Online or some adapter
                                 * error.  Recovery will try again.
                                 */
                                break;
                        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;
                        }
                }

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

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

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

        /* Check for a CT LS_RJT response */
        cmd =  be16_to_cpu(fdmi_cmd);
        if (fdmi_rsp == cpu_to_be16(SLI_CT_RESPONSE_FS_RJT)) {
                /* FDMI rsp failed */
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                                 "0220 FDMI cmd failed 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 */
                                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;

                case SLI_MGMT_RPRT:
                        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;
                                lpfc_printf_log(phba, KERN_ERR,
                                                LOG_DISCOVERY | LOG_ELS,
                                                "6460 VEN FDMI RPA failure\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:
                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
                        lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT, 0);
                break;
        case SLI_MGMT_RPA:
                if (vport->port_type == LPFC_PHYSICAL_PORT &&
                    phba->cfg_enable_mi &&
                    phba->sli4_hba.pc_sli4_params.mi_ver > LPFC_MIB1_SUPPORT) {
                        /* 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,
                                                 "6449 VEN RPA FDMI Success\n");
                                phba->link_flag &= ~LS_CT_VEN_RPA;
                                break;
                        }

                        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_value,
                                        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 (!(vport->fc_flag & FC_FABRIC))
                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 {
                        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 {
                lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT,
                              LPFC_FDMI_PORT_ATTR_num_disc);
        }
}

/* Routines for all individual HBA attributes */
static int
lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
               sizeof(struct lpfc_name));
        size = FOURBYTES + sizeof(struct lpfc_name);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_NODENAME);
        return size;
}
static int
lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport,
                                struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        /* This string MUST be consistent with other FC platforms
         * supported by Broadcom.
         */
        strncpy(ae->un.AttrString,
                "Emulex Corporation",
                       sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_MANUFACTURER);
        return size;
}

static int
lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        strncpy(ae->un.AttrString, phba->SerialNumber,
                sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_SERIAL_NUMBER);
        return size;
}

static int
lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport,
                         struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        strncpy(ae->un.AttrString, phba->ModelName,
                sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_MODEL);
        return size;
}

static int
lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport,
                               struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        strncpy(ae->un.AttrString, phba->ModelDesc,
                sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                                  sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_MODEL_DESCRIPTION);
        return size;
}

static int
lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport,
                           struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        lpfc_vpd_t *vp = &phba->vpd;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t i, j, incr, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        /* Convert JEDEC ID to ascii for hardware version */
        incr = vp->rev.biuRev;
        for (i = 0; i < 8; i++) {
                j = (incr & 0xf);
                if (j <= 9)
                        ae->un.AttrString[7 - i] =
                            (char)((uint8_t) 0x30 +
                                   (uint8_t) j);
                else
                        ae->un.AttrString[7 - i] =
                            (char)((uint8_t) 0x61 +
                                   (uint8_t) (j - 10));
                incr = (incr >> 4);
        }
        size = FOURBYTES + 8;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_HARDWARE_VERSION);
        return size;
}

static int
lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport,
                            struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        strncpy(ae->un.AttrString, lpfc_release_version,
                sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_DRIVER_VERSION);
        return size;
}

static int
lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport,
                           struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        if (phba->sli_rev == LPFC_SLI_REV4)
                lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
        else
                strncpy(ae->un.AttrString, phba->OptionROMVersion,
                        sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_OPTION_ROM_VERSION);
        return size;
}

static int
lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport,
                           struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_FIRMWARE_VERSION);
        return size;
}

static int
lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport,
                          struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s %s %s",
                 init_utsname()->sysname,
                 init_utsname()->release,
                 init_utsname()->version);

        len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_OS_NAME_VERSION);
        return size;
}

static int
lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport,
                          struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

        ae->un.AttrInt =  cpu_to_be32(LPFC_MAX_CT_SIZE);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_MAX_CT_PAYLOAD_LEN);
        return size;
}

static int
lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport,
                                 struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        len = lpfc_vport_symbolic_node_name(vport,
                                ae->un.AttrString, 256);
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_SYM_NODENAME);
        return size;
}

static int
lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport,
                               struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

        /* Nothing is defined for this currently */
        ae->un.AttrInt =  cpu_to_be32(0);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_VENDOR_INFO);
        return size;
}

static int
lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport,
                             struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

        /* Each driver instance corresponds to a single port */
        ae->un.AttrInt =  cpu_to_be32(1);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_NUM_PORTS);
        return size;
}

static int
lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport,
                               struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        memcpy(&ae->un.AttrWWN, &vport->fabric_nodename,
               sizeof(struct lpfc_name));
        size = FOURBYTES + sizeof(struct lpfc_name);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_FABRIC_WWNN);
        return size;
}

static int
lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport,
                            struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        strlcat(ae->un.AttrString, phba->BIOSVersion,
                sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_BIOS_VERSION);
        return size;
}

static int
lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport,
                              struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

        /* Driver doesn't have access to this information */
        ae->un.AttrInt =  cpu_to_be32(0);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_BIOS_STATE);
        return size;
}

static int
lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport,
                             struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        strncpy(ae->un.AttrString, "EMULEX",
                sizeof(ae->un.AttrString));
        len = strnlen(ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RHBA_VENDOR_ID);
        return size;
}

/* Routines for all individual PORT attributes */
static int
lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport,
                            struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba   *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        ae->un.AttrTypes[2] = 0x01; /* Type 0x8 - FCP */
        ae->un.AttrTypes[7] = 0x01; /* Type 0x20 - CT */

        /* 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)
                ae->un.AttrTypes[6] = 0x01; /* Type 0x28 - NVME */

        size = FOURBYTES + 32;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_FC4_TYPES);
        return size;
}

static int
lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
                                  struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba   *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

        ae->un.AttrInt = 0;
        if (!(phba->hba_flag & HBA_FCOE_MODE)) {
                if (phba->lmt & LMT_128Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_128GFC;
                if (phba->lmt & LMT_64Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_64GFC;
                if (phba->lmt & LMT_32Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_32GFC;
                if (phba->lmt & LMT_16Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_16GFC;
                if (phba->lmt & LMT_10Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_10GFC;
                if (phba->lmt & LMT_8Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_8GFC;
                if (phba->lmt & LMT_4Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_4GFC;
                if (phba->lmt & LMT_2Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_2GFC;
                if (phba->lmt & LMT_1Gb)
                        ae->un.AttrInt |= HBA_PORTSPEED_1GFC;
        } else {
                /* FCoE links support only one speed */
                switch (phba->fc_linkspeed) {
                case LPFC_ASYNC_LINK_SPEED_10GBPS:
                        ae->un.AttrInt = HBA_PORTSPEED_10GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_25GBPS:
                        ae->un.AttrInt = HBA_PORTSPEED_25GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_40GBPS:
                        ae->un.AttrInt = HBA_PORTSPEED_40GE;
                        break;
                case LPFC_ASYNC_LINK_SPEED_100GBPS:
                        ae->un.AttrInt = HBA_PORTSPEED_100GE;
                        break;
                }
        }
        ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_SPEED);
        return size;
}

static int
lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport,
                          struct lpfc_fdmi_attr_def *ad)
{
        struct lpfc_hba   *phba = vport->phba;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

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

        ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RPRT_PORT_SPEED);
        return size;
}

static int
lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport,
                              struct lpfc_fdmi_attr_def *ad)
{
        struct serv_parm *hsp;
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t size;

        ae = &ad->AttrValue;

        hsp = (struct serv_parm *)&vport->fc_sparam;
        ae->un.AttrInt = (((uint32_t) hsp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
                          (uint32_t) hsp->cmn.bbRcvSizeLsb;
        ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
        size = FOURBYTES + sizeof(uint32_t);
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RPRT_MAX_FRAME_SIZE);
        return size;
}

static int
lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport,
                               struct lpfc_fdmi_attr_def *ad)
{
        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
        struct lpfc_fdmi_attr_entry *ae;
        uint32_t len, size;

        ae = &ad->AttrValue;
        memset(ae, 0, sizeof(*ae));

        snprintf(ae->un.AttrString, sizeof(ae->un.AttrString),
                 "/sys/class/scsi_host/host%d", shost->host_no);
        len = strnlen((char *)ae->un.AttrString,
                          sizeof(ae->un.AttrString));
        len += (len & 3) ? (4 - (len & 3)) : 4;
        size = FOURBYTES + len;
        ad->AttrLen = cpu_to_be16(size);
        ad->AttrType = cpu_to_be16(RPRT_OS_DEVICE_NAME);
        return size;