Logo Search packages:      
Sourcecode: linux version File versions  Download package

lpfc_ct.c

/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2004-2007 Emulex.  All rights reserved.           *
 * EMULEX and SLI are trademarks of Emulex.                        *
 * www.emulex.com                                                  *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
 *******************************************************************/

/*
 * Fibre Channel SCSI LAN Device Driver CT support
 */

#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.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 "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"

#define HBA_PORTSPEED_UNKNOWN               0   /* Unknown - transceiver
                                     * incapable of reporting */
#define HBA_PORTSPEED_1GBIT                 1   /* 1 GBit/sec */
#define HBA_PORTSPEED_2GBIT                 2   /* 2 GBit/sec */
#define HBA_PORTSPEED_4GBIT                 8   /* 4 GBit/sec */
#define HBA_PORTSPEED_8GBIT                16   /* 8 GBit/sec */
#define HBA_PORTSPEED_10GBIT                4   /* 10 GBit/sec */
#define HBA_PORTSPEED_NOT_NEGOTIATED        5   /* Speed not established */

#define FOURBYTES 4


static char *lpfc_release_version = LPFC_DRIVER_VERSION;

/*
 * lpfc_ct_unsol_event
 */
static void
lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
                 struct lpfc_dmabuf *mp, uint32_t size)
{
      if (!mp) {
            printk(KERN_ERR "%s (%d): Unsolited CT, no buffer, "
                   "piocbq = %p, status = x%x, mp = %p, size = %d\n",
                   __FUNCTION__, __LINE__,
                   piocbq, piocbq->iocb.ulpStatus, mp, size);
      }

      printk(KERN_ERR "%s (%d): Ignoring unsolicted CT piocbq = %p, "
             "buffer = %p, size = %d, status = x%x\n",
             __FUNCTION__, __LINE__,
             piocbq, mp, size,
             piocbq->iocb.ulpStatus);

}

static void
lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
                    struct lpfc_dmabuf *mp, uint32_t size)
{
      if (!mp) {
            printk(KERN_ERR "%s (%d): Unsolited CT, no "
                   "HBQ buffer, piocbq = %p, status = x%x\n",
                   __FUNCTION__, __LINE__,
                   piocbq, piocbq->iocb.ulpStatus);
      } else {
            lpfc_ct_unsol_buffer(phba, piocbq, mp, size);
            printk(KERN_ERR "%s (%d): Ignoring unsolicted CT "
                   "piocbq = %p, buffer = %p, size = %d, "
                   "status = x%x\n",
                   __FUNCTION__, __LINE__,
                   piocbq, mp, size, piocbq->iocb.ulpStatus);
      }
}

void
lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                struct lpfc_iocbq *piocbq)
{

      struct lpfc_dmabuf *mp = NULL;
      IOCB_t *icmd = &piocbq->iocb;
      int i;
      struct lpfc_iocbq *iocbq;
      dma_addr_t paddr;
      uint32_t size;
      struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
      struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;

      piocbq->context2 = NULL;
      piocbq->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] & 0xff) == 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, 0, 1);
            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) {
            list_for_each_entry(iocbq, &piocbq->list, list) {
                  icmd = &iocbq->iocb;
                  if (icmd->ulpBdeCount == 0) {
                        printk(KERN_ERR "%s (%d): Unsolited CT, no "
                               "BDE, iocbq = %p, status = x%x\n",
                               __FUNCTION__, __LINE__,
                               iocbq, iocbq->iocb.ulpStatus);
                        continue;
                  }

                  size  = icmd->un.cont64[0].tus.f.bdeSize;
                  lpfc_ct_ignore_hbq_buffer(phba, piocbq, bdeBuf1, size);
                  lpfc_in_buf_free(phba, bdeBuf1);
                  if (icmd->ulpBdeCount == 2) {
                        lpfc_ct_ignore_hbq_buffer(phba, piocbq, bdeBuf2,
                                            size);
                        lpfc_in_buf_free(phba, bdeBuf2);
                  }
            }
      } else {
            struct lpfc_iocbq  *next;

            list_for_each_entry_safe(iocbq, next, &piocbq->list, list) {
                  icmd = &iocbq->iocb;
                  if (icmd->ulpBdeCount == 0) {
                        printk(KERN_ERR "%s (%d): Unsolited CT, no "
                               "BDE, iocbq = %p, status = x%x\n",
                               __FUNCTION__, __LINE__,
                               iocbq, iocbq->iocb.ulpStatus);
                        continue;
                  }

                  for (i = 0; i < icmd->ulpBdeCount; i++) {
                        paddr = getPaddr(icmd->un.cont64[i].addrHigh,
                                     icmd->un.cont64[i].addrLow);
                        mp = lpfc_sli_ringpostbuf_get(phba, pring,
                                                paddr);
                        size = icmd->un.cont64[i].tus.f.bdeSize;
                        lpfc_ct_unsol_buffer(phba, piocbq, mp, size);
                        lpfc_in_buf_free(phba, mp);
                  }
                  list_del(&iocbq->list);
                  lpfc_sli_release_iocbq(phba, iocbq);
            }
      }
}

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

            i++;
            size -= cnt;
      }

      *entries = i;
      return mlist;
}

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

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

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

static int
lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
           struct lpfc_dmabuf *inp, struct lpfc_dmabuf *outp,
           void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
                 struct lpfc_iocbq *),
           struct lpfc_nodelist *ndlp, uint32_t usr_flg, uint32_t num_entry,
           uint32_t tmo, uint8_t retry)
{
      struct lpfc_hba  *phba = vport->phba;
      struct lpfc_sli  *psli = &phba->sli;
      struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
      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_BDL;
      icmd->un.genreq64.bdl.bdeSize = (num_entry * sizeof (struct ulp_bde64));

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

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

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

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

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

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

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

      return 0;
}

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

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

      /* Put buffer(s) for ct rsp in bpl */
      outmp = lpfc_alloc_ct_rsp(phba, cmdcode, bpl, rsp_size, &cnt);
      if (!outmp)
            return -ENOMEM;

      status = lpfc_gen_req(vport, bmp, inmp, outmp, cmpl, ndlp, 0,
                        cnt+1, 0, retry);
      if (status) {
            lpfc_free_ct_rsp(phba, outmp);
            return -ENOMEM;
      }
      return 0;
}

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

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

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

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


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

            Cnt = Size  > FCELSSIZE ? FCELSSIZE : Size;

            Size -= Cnt;

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

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

                  ndlp = NULL;

                  /*
                   * Check for rscn processing or not
                   * To conserve rpi's, filter out addresses for other
                   * vports on the same physical HBAs.
                   */
                  if ((Did != vport->fc_myDID) &&
                      ((lpfc_find_vport_by_did(phba, Did) == NULL) ||
                       vport->cfg_peer_port_login)) {
                        if ((vport->port_type != LPFC_NPIV_PORT) ||
                            (vport->fc_flag & FC_RFF_NOT_SUPPORTED) ||
                            (!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);

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

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

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

                                    if (lpfc_ns_cmd(vport,
                                          SLI_CTNS_GFF_ID,
                                          0, Did) == 0)
                                          vport->num_disc_nodes++;
                              }
                              else {
                                    lpfc_debugfs_disc_trc(vport,
                                    LPFC_DISC_TRC_CT,
                                    "Skip2 GID_FTrsp: "
                                    "did:x%x flg:x%x cnt:%d",
                                    Did, vport->fc_flag,
                                    vport->fc_rscn_id_cnt);

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

      }

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

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

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

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

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

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

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


      if (lpfc_els_chk_latt(vport) || lpfc_error_lost_link(irsp)) {
            lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0216 Link event during NS query\n");
            lpfc_vport_set_state(vport, FC_VPORT_FAILED);
            goto out;
      }

      if (irsp->ulpStatus) {
            /* Check for retry */
            if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
                  if ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
                        (irsp->un.ulpWord[4] != IOERR_NO_RESOURCES))
                        vport->fc_ns_retry++;
                  /* CT command is being retried */
                  rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
                               vport->fc_ns_retry, 0);
                  if (rc == 0)
                        goto out;
            }
            lpfc_vport_set_state(vport, FC_VPORT_FAILED);
            lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
                         "0257 GID_FT Query error: 0x%x 0x%x\n",
                         irsp->ulpStatus, vport->fc_ns_retry);
      } else {
            /* Good status, continue checking */
            CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
            if (CTrsp->CommandResponse.bits.CmdRsp ==
                be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) {
                  lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                               "0208 NameServer Rsp Data: x%x\n",
                               vport->fc_flag);
                  lpfc_ns_rsp(vport, outp,
                            (uint32_t) (irsp->un.genreq64.bdl.bdeSize));
            } else if (CTrsp->CommandResponse.bits.CmdRsp ==
                     be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
                  /* NameServer Rsp Error */
                  if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
                      && (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
                        lpfc_printf_vlog(vport, KERN_INFO,
                              LOG_DISCOVERY,
                              "0269 No NameServer Entries "
                              "Data: x%x x%x x%x x%x\n",
                              CTrsp->CommandResponse.bits.CmdRsp,
                              (uint32_t) CTrsp->ReasonCode,
                              (uint32_t) CTrsp->Explanation,
                              vport->fc_flag);

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

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


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

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

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

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

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

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

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

            if (CTrsp->CommandResponse.bits.CmdRsp ==
                be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) {
                  if ((fbits & FC4_FEATURE_INIT) &&
                      !(fbits & FC4_FEATURE_TARGET)) {
                        lpfc_printf_vlog(vport, KERN_INFO,
                                     LOG_DISCOVERY,
                                     "0270 Skip x%x GFF "
                                     "NameServer Rsp Data: (init) "
                                     "x%x x%x\n", did, fbits,
                                     vport->fc_rscn_id_cnt);
                        goto out;
                  }
            }
      }
      else {
            lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
                         "0267 NameServer GFF Rsp "
                         "x%x Error (%d %d) Data: x%x x%x\n",
                         did, irsp->ulpStatus, irsp->un.ulpWord[4],
                         vport->fc_flag, vport->fc_rscn_id_cnt)
      }

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


static void
lpfc_cmpl_ct_cmd_rft_id(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 RFT request completes, latt %d, "
                   "ulpStatus x%x CmdRsp x%x, Context x%x, Tag x%x\n",
                   latt, irsp->ulpStatus,
                   CTrsp->CommandResponse.bits.CmdRsp,
                   cmdiocb->iocb.ulpContext, cmdiocb->iocb.ulpIoTag);

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

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

            if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
                  ((irsp->un.ulpWord[4] == IOERR_SLI_DOWN) ||
                   (irsp->un.ulpWord[4] == 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,
                         "0216 Retrying NS cmd %x\n", cmdcode);
            rc = lpfc_ns_cmd(vport, cmdcode, retry, 0);
            if (rc == 0)
                  goto out;
      }

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

static void
lpfc_cmpl_ct_cmd_rnn_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                  struct lpfc_iocbq *rspiocb)
{
      lpfc_cmpl_ct_cmd_rft_id(phba, cmdiocb, rspiocb);
      return;
}

static void
lpfc_cmpl_ct_cmd_rspn_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                   struct lpfc_iocbq *rspiocb)
{
      lpfc_cmpl_ct_cmd_rft_id(phba, cmdiocb, rspiocb);
      return;
}

static void
lpfc_cmpl_ct_cmd_rsnn_nn(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
                   struct lpfc_iocbq *rspiocb)
{
      lpfc_cmpl_ct_cmd_rft_id(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)
          vport->fc_flag |= FC_RFF_NOT_SUPPORTED;

      lpfc_cmpl_ct_cmd_rft_id(phba, cmdiocb, rspiocb);
      return;
}

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

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

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

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

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

int
lpfc_vport_symbolic_node_name(struct lpfc_vport *vport, char *symbol,
      size_t size)
{
      char fwrev[16];
      int n;

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

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

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

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

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

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

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

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

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

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

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

      case SLI_CTNS_GFF_ID:
            CtReq->CommandResponse.bits.CmdRsp =
                  be16_to_cpu(SLI_CTNS_GFF_ID);
            CtReq->un.gff.PortId = be32_to_cpu(context);
            cmpl = lpfc_cmpl_ct_cmd_gff_id;
            break;

      case SLI_CTNS_RFT_ID:
            CtReq->CommandResponse.bits.CmdRsp =
                be16_to_cpu(SLI_CTNS_RFT_ID);
            CtReq->un.rft.PortId = be32_to_cpu(vport->fc_myDID);
            CtReq->un.rft.fcpReg = 1;
            cmpl = lpfc_cmpl_ct_cmd_rft_id;
            break;

      case SLI_CTNS_RNN_ID:
            CtReq->CommandResponse.bits.CmdRsp =
                be16_to_cpu(SLI_CTNS_RNN_ID);
            CtReq->un.rnn.PortId = be32_to_cpu(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:
            CtReq->CommandResponse.bits.CmdRsp =
                be16_to_cpu(SLI_CTNS_RSPN_ID);
            CtReq->un.rspn.PortId = be32_to_cpu(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:
            CtReq->CommandResponse.bits.CmdRsp =
                be16_to_cpu(SLI_CTNS_RSNN_NN);
            memcpy(CtReq->un.rsnn.wwnn, &vport->fc_nodename,
                   sizeof (struct lpfc_name));
            size = sizeof(CtReq->un.rsnn.symbname);
            CtReq->un.rsnn.len =
                  lpfc_vport_symbolic_node_name(vport,
                  CtReq->un.rsnn.symbname, size);
            cmpl = lpfc_cmpl_ct_cmd_rsnn_nn;
            break;
      case SLI_CTNS_RFF_ID:
            vport->fc_flag &= ~FC_RFF_NOT_SUPPORTED;
            CtReq->CommandResponse.bits.CmdRsp =
                be16_to_cpu(SLI_CTNS_RFF_ID);
            CtReq->un.rff.PortId = be32_to_cpu(vport->fc_myDID);;
            CtReq->un.rff.fbits = FC4_FEATURE_INIT;
            CtReq->un.rff.type_code = FC_FCP_DATA;
            cmpl = lpfc_cmpl_ct_cmd_rff_id;
            break;
      }
      lpfc_nlp_get(ndlp);

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

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

      latt = lpfc_els_chk_latt(vport);

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

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

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

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

      case SLI_MGMT_RPA:
            break;

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

      case SLI_MGMT_DPRT:
            lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RHBA);
            break;
      }
      lpfc_ct_free_iocb(phba, cmdiocb);
      return;
}

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                  vp = &phba->vpd;

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

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

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

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

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

                  /* #3 Port attribute entry */
                  ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) pab + size);
                  ae->ad.bits.AttrType = be16_to_cpu(PORT_SPEED);
                  ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + 4);
                  switch(phba->fc_linkspeed) {
                        case LA_1GHZ_LINK:
                              ae->un.PortSpeed = HBA_PORTSPEED_1GBIT;
                        break;
                        case LA_2GHZ_LINK:
                              ae->un.PortSpeed = HBA_PORTSPEED_2GBIT;
                        break;
                        case LA_4GHZ_LINK:
                              ae->un.PortSpeed = HBA_PORTSPEED_4GBIT;
                        break;
                        case LA_8GHZ_LINK:
                              ae->un.PortSpeed = HBA_PORTSPEED_8GBIT;
                        break;
                        default:
                              ae->un.PortSpeed =
                                    HBA_PORTSPEED_UNKNOWN;
                        break;
                  }
                  pab->ab.EntryCnt++;
                  size += FOURBYTES + 4;

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

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

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

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

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

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

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

      cmpl = lpfc_cmpl_ct_cmd_fdmi;
      lpfc_nlp_get(ndlp);

      if (!lpfc_ct_cmd(vport, mp, bmp, ndlp, cmpl, FC_MAX_NS_RSP, 0))
            return 0;

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

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

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

            spin_lock_irqsave(&phba->hbalock, iflag);
            if (phba->work_wait)
                  lpfc_worker_wake_up(phba);
            spin_unlock_irqrestore(&phba->hbalock, iflag);
      }
      else
            spin_unlock_irqrestore(&vport->work_port_lock, iflag);
}

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

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

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

      if (vp->rev.rBit) {
            if (psli->sli_flag & LPFC_SLI2_ACTIVE)
                  rev = vp->rev.sli2FwRev;
            else
                  rev = vp->rev.sli1FwRev;

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

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

            if (psli->sli_flag & LPFC_SLI2_ACTIVE)
                  fwname = vp->rev.sli2FwName;
            else
                  fwname = vp->rev.sli1FwName;

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

            ptr = (uint32_t*)fwname;

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

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

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

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

Generated by  Doxygen 1.6.0   Back to index