drivers/scsi/lpfc/lpfc_els.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/pci.h>
  24 #include <linux/interrupt.h>
  25
  26 #include <scsi/scsi.h>
  27 #include <scsi/scsi_device.h>
  28 #include <scsi/scsi_host.h>
  29 #include <scsi/scsi_transport_fc.h>
  30
  31 #include "lpfc_hw.h"
  32 #include "lpfc_sli.h"
  33 #include "lpfc_disc.h"
  34 #include "lpfc_scsi.h"
  35 #include "lpfc.h"
  36 #include "lpfc_logmsg.h"
  37 #include "lpfc_crtn.h"
  38
  39 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
  40                           struct lpfc_iocbq *);
  41 static int lpfc_max_els_tries = 3;
  42
  43 static int
  44 lpfc_els_chk_latt(struct lpfc_hba * phba)
  45 {
  46         struct lpfc_sli *psli;
  47         LPFC_MBOXQ_t *mbox;
  48         uint32_t ha_copy;
  49         int rc;
  50
  51         psli = &phba->sli;
  52
  53         if ((phba->hba_state >= LPFC_HBA_READY) ||
  54             (phba->hba_state == LPFC_LINK_DOWN))
  55                 return 0;
  56
  57         /* Read the HBA Host Attention Register */
  58         spin_lock_irq(phba->host->host_lock);
  59         ha_copy = readl(phba->HAregaddr);
  60         spin_unlock_irq(phba->host->host_lock);
  61
  62         if (!(ha_copy & HA_LATT))
  63                 return 0;
  64
  65         /* Pending Link Event during Discovery */
  66         lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY,
  67                         "%d:0237 Pending Link Event during "
  68                         "Discovery: State x%x\n",
  69                         phba->brd_no, phba->hba_state);
  70
  71         /* CLEAR_LA should re-enable link attention events and
  72          * we should then imediately take a LATT event. The
  73          * LATT processing should call lpfc_linkdown() which
  74          * will cleanup any left over in-progress discovery
  75          * events.
  76          */
  77         spin_lock_irq(phba->host->host_lock);
  78         phba->fc_flag |= FC_ABORT_DISCOVERY;
  79         spin_unlock_irq(phba->host->host_lock);
  80
  81         if (phba->hba_state != LPFC_CLEAR_LA) {
  82                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
  83                         phba->hba_state = LPFC_CLEAR_LA;
  84                         lpfc_clear_la(phba, mbox);
  85                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
  86                         rc = lpfc_sli_issue_mbox (phba, mbox,
  87                                                   (MBX_NOWAIT | MBX_STOP_IOCB));
  88                         if (rc == MBX_NOT_FINISHED) {
  89                                 mempool_free(mbox, phba->mbox_mem_pool);
  90                                 phba->hba_state = LPFC_HBA_ERROR;
  91                         }
  92                 }
  93         }
  94
  95         return 1;
  96
  97 }
  98
  99 static struct lpfc_iocbq *
 100 lpfc_prep_els_iocb(struct lpfc_hba * phba, uint8_t expectRsp,
 101                    uint16_t cmdSize, uint8_t retry, struct lpfc_nodelist * ndlp,
 102                    uint32_t did, uint32_t elscmd)
 103 {
 104         struct lpfc_sli_ring *pring;
 105         struct lpfc_iocbq *elsiocb;
 106         struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
 107         struct ulp_bde64 *bpl;
 108         IOCB_t *icmd;
 109
 110         pring = &phba->sli.ring[LPFC_ELS_RING];
 111
 112         if (phba->hba_state < LPFC_LINK_UP)
 113                 return  NULL;
 114
 115         /* Allocate buffer for  command iocb */
 116         spin_lock_irq(phba->host->host_lock);
 117         elsiocb = lpfc_sli_get_iocbq(phba);
 118         spin_unlock_irq(phba->host->host_lock);
 119
 120         if (elsiocb == NULL)
 121                 return NULL;
 122         icmd = &elsiocb->iocb;
 123
 124         /* fill in BDEs for command */
 125         /* Allocate buffer for command payload */
 126         if (((pcmd = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
 127             ((pcmd->virt = lpfc_mbuf_alloc(phba,
 128                                            MEM_PRI, &(pcmd->phys))) == 0)) {
 129                 kfree(pcmd);
 130
 131                 spin_lock_irq(phba->host->host_lock);
 132                 lpfc_sli_release_iocbq(phba, elsiocb);
 133                 spin_unlock_irq(phba->host->host_lock);
 134                 return NULL;
 135         }
 136
 137         INIT_LIST_HEAD(&pcmd->list);
 138
 139         /* Allocate buffer for response payload */
 140         if (expectRsp) {
 141                 prsp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
 142                 if (prsp)
 143                         prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 144                                                      &prsp->phys);
 145                 if (prsp == 0 || prsp->virt == 0) {
 146                         kfree(prsp);
 147                         lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
 148                         kfree(pcmd);
 149                         spin_lock_irq(phba->host->host_lock);
 150                         lpfc_sli_release_iocbq(phba, elsiocb);
 151                         spin_unlock_irq(phba->host->host_lock);
 152                         return NULL;
 153                 }
 154                 INIT_LIST_HEAD(&prsp->list);
 155         } else {
 156                 prsp = NULL;
 157         }
 158
 159         /* Allocate buffer for Buffer ptr list */
 160         pbuflist = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
 161         if (pbuflist)
 162             pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 163                                              &pbuflist->phys);
 164         if (pbuflist == 0 || pbuflist->virt == 0) {
 165                 spin_lock_irq(phba->host->host_lock);
 166                 lpfc_sli_release_iocbq(phba, elsiocb);
 167                 spin_unlock_irq(phba->host->host_lock);
 168                 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
 169                 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
 170                 kfree(pcmd);
 171                 kfree(prsp);
 172                 kfree(pbuflist);
 173                 return NULL;
 174         }
 175
 176         INIT_LIST_HEAD(&pbuflist->list);
 177
 178         icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
 179         icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
 180         icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL;
 181         if (expectRsp) {
 182                 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64));
 183                 icmd->un.elsreq64.remoteID = did;       /* DID */
 184                 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
 185         } else {
 186                 icmd->un.elsreq64.bdl.bdeSize = sizeof (struct ulp_bde64);
 187                 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
 188         }
 189
 190         icmd->ulpBdeCount = 1;
 191         icmd->ulpLe = 1;
 192         icmd->ulpClass = CLASS3;
 193
 194         bpl = (struct ulp_bde64 *) pbuflist->virt;
 195         bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
 196         bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
 197         bpl->tus.f.bdeSize = cmdSize;
 198         bpl->tus.f.bdeFlags = 0;
 199         bpl->tus.w = le32_to_cpu(bpl->tus.w);
 200
 201         if (expectRsp) {
 202                 bpl++;
 203                 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
 204                 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
 205                 bpl->tus.f.bdeSize = FCELSSIZE;
 206                 bpl->tus.f.bdeFlags = BUFF_USE_RCV;
 207                 bpl->tus.w = le32_to_cpu(bpl->tus.w);
 208         }
 209
 210         /* Save for completion so we can release these resources */
 211         elsiocb->context1 = (uint8_t *) ndlp;
 212         elsiocb->context2 = (uint8_t *) pcmd;
 213         elsiocb->context3 = (uint8_t *) pbuflist;
 214         elsiocb->retry = retry;
 215         elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
 216
 217         if (prsp) {
 218                 list_add(&prsp->list, &pcmd->list);
 219         }
 220
 221         if (expectRsp) {
 222                 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
 223                 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
 224                                 "%d:0116 Xmit ELS command x%x to remote "
 225                                 "NPORT x%x Data: x%x x%x\n",
 226                                 phba->brd_no, elscmd,
 227                                 did, icmd->ulpIoTag, phba->hba_state);
 228         } else {
 229                 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
 230                 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
 231                                 "%d:0117 Xmit ELS response x%x to remote "
 232                                 "NPORT x%x Data: x%x x%x\n",
 233                                 phba->brd_no, elscmd,
 234                                 ndlp->nlp_DID, icmd->ulpIoTag, cmdSize);
 235         }
 236
 237         return elsiocb;
 238 }
 239
 240
 241 static int
 242 lpfc_cmpl_els_flogi_fabric(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 243                 struct serv_parm *sp, IOCB_t *irsp)
 244 {
 245         LPFC_MBOXQ_t *mbox;
 246         int rc;
 247
 248         spin_lock_irq(phba->host->host_lock);
 249         phba->fc_flag |= FC_FABRIC;
 250         spin_unlock_irq(phba->host->host_lock);
 251
 252         phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
 253         if (sp->cmn.edtovResolution)    /* E_D_TOV ticks are in nanoseconds */
 254                 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
 255
 256         phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
 257
 258         if (phba->fc_topology == TOPOLOGY_LOOP) {
 259                 spin_lock_irq(phba->host->host_lock);
 260                 phba->fc_flag |= FC_PUBLIC_LOOP;
 261                 spin_unlock_irq(phba->host->host_lock);
 262         } else {
 263                 /*
 264                  * If we are a N-port connected to a Fabric, fixup sparam's so
 265                  * logins to devices on remote loops work.
 266                  */
 267                 phba->fc_sparam.cmn.altBbCredit = 1;
 268         }
 269
 270         phba->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
 271         memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
 272         memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
 273         ndlp->nlp_class_sup = 0;
 274         if (sp->cls1.classValid)
 275                 ndlp->nlp_class_sup |= FC_COS_CLASS1;
 276         if (sp->cls2.classValid)
 277                 ndlp->nlp_class_sup |= FC_COS_CLASS2;
 278         if (sp->cls3.classValid)
 279                 ndlp->nlp_class_sup |= FC_COS_CLASS3;
 280         if (sp->cls4.classValid)
 281                 ndlp->nlp_class_sup |= FC_COS_CLASS4;
 282         ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
 283                                 sp->cmn.bbRcvSizeLsb;
 284         memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
 285
 286         mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 287         if (!mbox)
 288                 goto fail;
 289
 290         phba->hba_state = LPFC_FABRIC_CFG_LINK;
 291         lpfc_config_link(phba, mbox);
 292         mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 293
 294         rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
 295         if (rc == MBX_NOT_FINISHED)
 296                 goto fail_free_mbox;
 297
 298         mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 299         if (!mbox)
 300                 goto fail;
 301
 302         if (lpfc_reg_login(phba, Fabric_DID, (uint8_t *) sp, mbox, 0))
 303                 goto fail_free_mbox;
 304
 305         /*
 306          * set_slim mailbox command needs to execute first,
 307          * queue this command to be processed later.
 308          */
 309         mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
 310         mbox->context2 = ndlp;
 311
 312         rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
 313         if (rc == MBX_NOT_FINISHED)
 314                 goto fail_free_mbox;
 315
 316         return 0;
 317
 318  fail_free_mbox:
 319         mempool_free(mbox, phba->mbox_mem_pool);
 320  fail:
 321         return -ENXIO;
 322 }
 323
 324 /*
 325  * We FLOGIed into an NPort, initiate pt2pt protocol
 326  */
 327 static int
 328 lpfc_cmpl_els_flogi_nport(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 329                 struct serv_parm *sp)
 330 {
 331         LPFC_MBOXQ_t *mbox;
 332         int rc;
 333
 334         spin_lock_irq(phba->host->host_lock);
 335         phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
 336         spin_unlock_irq(phba->host->host_lock);
 337
 338         phba->fc_edtov = FF_DEF_EDTOV;
 339         phba->fc_ratov = FF_DEF_RATOV;
 340         rc = memcmp(&phba->fc_portname, &sp->portName,
 341                         sizeof(struct lpfc_name));
 342         if (rc >= 0) {
 343                 /* This side will initiate the PLOGI */
 344                 spin_lock_irq(phba->host->host_lock);
 345                 phba->fc_flag |= FC_PT2PT_PLOGI;
 346                 spin_unlock_irq(phba->host->host_lock);
 347
 348                 /*
 349                  * N_Port ID cannot be 0, set our to LocalID the other
 350                  * side will be RemoteID.
 351                  */
 352
 353                 /* not equal */
 354                 if (rc)
 355                         phba->fc_myDID = PT2PT_LocalID;
 356
 357                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 358                 if (!mbox)
 359                         goto fail;
 360
 361                 lpfc_config_link(phba, mbox);
 362
 363                 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 364                 rc = lpfc_sli_issue_mbox(phba, mbox,
 365                                 MBX_NOWAIT | MBX_STOP_IOCB);
 366                 if (rc == MBX_NOT_FINISHED) {
 367                         mempool_free(mbox, phba->mbox_mem_pool);
 368                         goto fail;
 369                 }
 370                 mempool_free(ndlp, phba->nlp_mem_pool);
 371
 372                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, PT2PT_RemoteID);
 373                 if (!ndlp) {
 374                         /*
 375                          * Cannot find existing Fabric ndlp, so allocate a
 376                          * new one
 377                          */
 378                         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
 379                         if (!ndlp)
 380                                 goto fail;
 381
 382                         lpfc_nlp_init(phba, ndlp, PT2PT_RemoteID);
 383                 }
 384
 385                 memcpy(&ndlp->nlp_portname, &sp->portName,
 386                                 sizeof(struct lpfc_name));
 387                 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
 388                                 sizeof(struct lpfc_name));
 389                 ndlp->nlp_state = NLP_STE_NPR_NODE;
 390                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
 391                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
 392         } else {
 393                 /* This side will wait for the PLOGI */
 394                 mempool_free( ndlp, phba->nlp_mem_pool);
 395         }
 396
 397         spin_lock_irq(phba->host->host_lock);
 398         phba->fc_flag |= FC_PT2PT;
 399         spin_unlock_irq(phba->host->host_lock);
 400
 401         /* Start discovery - this should just do CLEAR_LA */
 402         lpfc_disc_start(phba);
 403         return 0;
 404  fail:
 405         return -ENXIO;
 406 }
 407
 408 static void
 409 lpfc_cmpl_els_flogi(struct lpfc_hba * phba,
 410                     struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb)
 411 {
 412         IOCB_t *irsp = &rspiocb->iocb;
 413         struct lpfc_nodelist *ndlp = cmdiocb->context1;
 414         struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
 415         struct serv_parm *sp;
 416         int rc;
 417
 418         /* Check to see if link went down during discovery */
 419         if (lpfc_els_chk_latt(phba)) {
 420                 lpfc_nlp_remove(phba, ndlp);
 421                 goto out;
 422         }
 423
 424         if (irsp->ulpStatus) {
 425                 /* Check for retry */
 426                 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
 427                         /* ELS command is being retried */
 428                         goto out;
 429                 }
 430                 /* FLOGI failed, so there is no fabric */
 431                 spin_lock_irq(phba->host->host_lock);
 432                 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
 433                 spin_unlock_irq(phba->host->host_lock);
 434
 435                 /* If private loop, then allow max outstandting els to be
 436                  * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
 437                  * alpa map would take too long otherwise.
 438                  */
 439                 if (phba->alpa_map[0] == 0) {
 440                         phba->cfg_discovery_threads =
 441                             LPFC_MAX_DISC_THREADS;
 442                 }
 443
 444                 /* FLOGI failure */
 445                 lpfc_printf_log(phba,
 446                                 KERN_INFO,
 447                                 LOG_ELS,
 448                                 "%d:0100 FLOGI failure Data: x%x x%x x%x\n",
 449                                 phba->brd_no,
 450                                 irsp->ulpStatus, irsp->un.ulpWord[4],
 451                                 irsp->ulpTimeout);
 452                 goto flogifail;
 453         }
 454
 455         /*
 456          * The FLogI succeeded.  Sync the data for the CPU before
 457          * accessing it.
 458          */
 459         prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
 460
 461         sp = prsp->virt + sizeof(uint32_t);
 462
 463         /* FLOGI completes successfully */
 464         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
 465                         "%d:0101 FLOGI completes sucessfully "
 466                         "Data: x%x x%x x%x x%x\n",
 467                         phba->brd_no,
 468                         irsp->un.ulpWord[4], sp->cmn.e_d_tov,
 469                         sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution);
 470
 471         if (phba->hba_state == LPFC_FLOGI) {
 472                 /*
 473                  * If Common Service Parameters indicate Nport
 474                  * we are point to point, if Fport we are Fabric.
 475                  */
 476                 if (sp->cmn.fPort)
 477                         rc = lpfc_cmpl_els_flogi_fabric(phba, ndlp, sp, irsp);
 478                 else
 479                         rc = lpfc_cmpl_els_flogi_nport(phba, ndlp, sp);
 480
 481                 if (!rc)
 482                         goto out;
 483         }
 484
 485 flogifail:
 486         lpfc_nlp_remove(phba, ndlp);
 487
 488         if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
 489             (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED &&
 490              irsp->un.ulpWord[4] != IOERR_SLI_DOWN)) {
 491                 /* FLOGI failed, so just use loop map to make discovery list */
 492                 lpfc_disc_list_loopmap(phba);
 493
 494                 /* Start discovery */
 495                 lpfc_disc_start(phba);
 496         }
 497
 498 out:
 499         lpfc_els_free_iocb(phba, cmdiocb);
 500 }
 501
 502 static int
 503 lpfc_issue_els_flogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
 504                      uint8_t retry)
 505 {
 506         struct serv_parm *sp;
 507         IOCB_t *icmd;
 508         struct lpfc_iocbq *elsiocb;
 509         struct lpfc_sli_ring *pring;
 510         uint8_t *pcmd;
 511         uint16_t cmdsize;
 512         uint32_t tmo;
 513         int rc;
 514
 515         pring = &phba->sli.ring[LPFC_ELS_RING];
 516
 517         cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
 518         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
 519                                                  ndlp->nlp_DID, ELS_CMD_FLOGI);
 520         if (!elsiocb)
 521                 return 1;
 522
 523         icmd = &elsiocb->iocb;
 524         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
 525
 526         /* For FLOGI request, remainder of payload is service parameters */
 527         *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
 528         pcmd += sizeof (uint32_t);
 529         memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
 530         sp = (struct serv_parm *) pcmd;
 531
 532         /* Setup CSPs accordingly for Fabric */
 533         sp->cmn.e_d_tov = 0;
 534         sp->cmn.w2.r_a_tov = 0;
 535         sp->cls1.classValid = 0;
 536         sp->cls2.seqDelivery = 1;
 537         sp->cls3.seqDelivery = 1;
 538         if (sp->cmn.fcphLow < FC_PH3)
 539                 sp->cmn.fcphLow = FC_PH3;
 540         if (sp->cmn.fcphHigh < FC_PH3)
 541                 sp->cmn.fcphHigh = FC_PH3;
 542
 543         tmo = phba->fc_ratov;
 544         phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
 545         lpfc_set_disctmo(phba);
 546         phba->fc_ratov = tmo;
 547
 548         phba->fc_stat.elsXmitFLOGI++;
 549         elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
 550         spin_lock_irq(phba->host->host_lock);
 551         rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
 552         spin_unlock_irq(phba->host->host_lock);
 553         if (rc == IOCB_ERROR) {
 554                 lpfc_els_free_iocb(phba, elsiocb);
 555                 return 1;
 556         }
 557         return 0;
 558 }
 559
 560 int
 561 lpfc_els_abort_flogi(struct lpfc_hba * phba)
 562 {
 563         struct lpfc_sli_ring *pring;
 564         struct lpfc_iocbq *iocb, *next_iocb;
 565         struct lpfc_nodelist *ndlp;
 566         IOCB_t *icmd;
 567
 568         /* Abort outstanding I/O on NPort <nlp_DID> */
 569         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 570                         "%d:0201 Abort outstanding I/O on NPort x%x\n",
 571                         phba->brd_no, Fabric_DID);
 572
 573         pring = &phba->sli.ring[LPFC_ELS_RING];
 574
 575         /*
 576          * Check the txcmplq for an iocb that matches the nport the driver is
 577          * searching for.
 578          */
 579         spin_lock_irq(phba->host->host_lock);
 580         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
 581                 icmd = &iocb->iocb;
 582                 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
 583                         ndlp = (struct lpfc_nodelist *)(iocb->context1);
 584                         if (ndlp && (ndlp->nlp_DID == Fabric_DID)) {
 585                                 list_del(&iocb->list);
 586                                 pring->txcmplq_cnt--;
 587
 588                                 if ((icmd->un.elsreq64.bdl.ulpIoTag32)) {
 589                                         lpfc_sli_issue_abort_iotag32
 590                                                 (phba, pring, iocb);
 591                                 }
 592                                 if (iocb->iocb_cmpl) {
 593                                         icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
 594                                         icmd->un.ulpWord[4] =
 595                                             IOERR_SLI_ABORTED;
 596                                         spin_unlock_irq(phba->host->host_lock);
 597                                         (iocb->iocb_cmpl) (phba, iocb, iocb);
 598                                         spin_lock_irq(phba->host->host_lock);
 599                                 } else
 600                                         lpfc_sli_release_iocbq(phba, iocb);
 601                         }
 602                 }
 603         }
 604         spin_unlock_irq(phba->host->host_lock);
 605
 606         return 0;
 607 }
 608
 609 int
 610 lpfc_initial_flogi(struct lpfc_hba * phba)
 611 {
 612         struct lpfc_nodelist *ndlp;
 613
 614         /* First look for the Fabric ndlp */
 615         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, Fabric_DID);
 616         if (!ndlp) {
 617                 /* Cannot find existing Fabric ndlp, so allocate a new one */
 618                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
 619                 if (!ndlp)
 620                         return 0;
 621                 lpfc_nlp_init(phba, ndlp, Fabric_DID);
 622         } else {
 623                 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
 624         }
 625         if (lpfc_issue_els_flogi(phba, ndlp, 0)) {
 626                 mempool_free( ndlp, phba->nlp_mem_pool);
 627         }
 628         return 1;
 629 }
 630
 631 static void
 632 lpfc_more_plogi(struct lpfc_hba * phba)
 633 {
 634         int sentplogi;
 635
 636         if (phba->num_disc_nodes)
 637                 phba->num_disc_nodes--;
 638
 639         /* Continue discovery with <num_disc_nodes> PLOGIs to go */
 640         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 641                         "%d:0232 Continue discovery with %d PLOGIs to go "
 642                         "Data: x%x x%x x%x\n",
 643                         phba->brd_no, phba->num_disc_nodes, phba->fc_plogi_cnt,
 644                         phba->fc_flag, phba->hba_state);
 645
 646         /* Check to see if there are more PLOGIs to be sent */
 647         if (phba->fc_flag & FC_NLP_MORE) {
 648                 /* go thru NPR list and issue any remaining ELS PLOGIs */
 649                 sentplogi = lpfc_els_disc_plogi(phba);
 650         }
 651         return;
 652 }
 653
 654 static struct lpfc_nodelist *
 655 lpfc_plogi_confirm_nport(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 656                          struct lpfc_nodelist *ndlp)
 657 {
 658         struct lpfc_nodelist *new_ndlp;
 659         struct lpfc_dmabuf *pcmd, *prsp;
 660         uint32_t *lp;
 661         struct serv_parm *sp;
 662         uint8_t name[sizeof (struct lpfc_name)];
 663         uint32_t rc;
 664
 665         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
 666         prsp = (struct lpfc_dmabuf *) pcmd->list.next;
 667         lp = (uint32_t *) prsp->virt;
 668         sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
 669
 670         /* Now we to find out if the NPort we are logging into, matches the WWPN
 671          * we have for that ndlp. If not, we have some work to do.
 672          */
 673         new_ndlp = lpfc_findnode_wwpn(phba, NLP_SEARCH_ALL, &sp->portName);
 674
 675         memset(name, 0, sizeof (struct lpfc_name));
 676         rc =  memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name));
 677         if (!rc || (new_ndlp == ndlp)) {
 678                 return ndlp;
 679         }
 680
 681         if (!new_ndlp) {
 682                 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
 683                 if (!new_ndlp)
 684                         return ndlp;
 685
 686                 lpfc_nlp_init(phba, new_ndlp, ndlp->nlp_DID);
 687         }
 688
 689         lpfc_unreg_rpi(phba, new_ndlp);
 690         new_ndlp->nlp_prev_state = ndlp->nlp_state;
 691         new_ndlp->nlp_DID = ndlp->nlp_DID;
 692         new_ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
 693         lpfc_nlp_list(phba, new_ndlp, NLP_PLOGI_LIST);
 694
 695         /* Move this back to NPR list */
 696         lpfc_unreg_rpi(phba, ndlp);
 697         ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */
 698         ndlp->nlp_state = NLP_STE_NPR_NODE;
 699         lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
 700
 701         return new_ndlp;
 702 }
 703
 704 static void
 705 lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 706                     struct lpfc_iocbq * rspiocb)
 707 {
 708         IOCB_t *irsp;
 709         struct lpfc_nodelist *ndlp;
 710         int disc, rc, did, type;
 711
 712
 713         /* we pass cmdiocb to state machine which needs rspiocb as well */
 714         cmdiocb->context_un.rsp_iocb = rspiocb;
 715
 716         irsp = &rspiocb->iocb;
 717         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL,
 718                                                 irsp->un.elsreq64.remoteID);
 719         if (!ndlp)
 720                 goto out;
 721
 722         /* Since ndlp can be freed in the disc state machine, note if this node
 723          * is being used during discovery.
 724          */
 725         disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
 726         spin_lock_irq(phba->host->host_lock);
 727         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
 728         spin_unlock_irq(phba->host->host_lock);
 729         rc   = 0;
 730
 731         /* PLOGI completes to NPort <nlp_DID> */
 732         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
 733                         "%d:0102 PLOGI completes to NPort x%x "
 734                         "Data: x%x x%x x%x x%x x%x\n",
 735                         phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
 736                         irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
 737                         phba->num_disc_nodes);
 738
 739         /* Check to see if link went down during discovery */
 740         if (lpfc_els_chk_latt(phba)) {
 741                 spin_lock_irq(phba->host->host_lock);
 742                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
 743                 spin_unlock_irq(phba->host->host_lock);
 744                 goto out;
 745         }
 746
 747         /* ndlp could be freed in DSM, save these values now */
 748         type = ndlp->nlp_type;
 749         did = ndlp->nlp_DID;
 750
 751         if (irsp->ulpStatus) {
 752                 /* Check for retry */
 753                 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
 754                         /* ELS command is being retried */
 755                         if (disc) {
 756                                 spin_lock_irq(phba->host->host_lock);
 757                                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
 758                                 spin_unlock_irq(phba->host->host_lock);
 759                         }
 760                         goto out;
 761                 }
 762
 763                 /* PLOGI failed */
 764                 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
 765                 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 766                    ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
 767                    (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
 768                    (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
 769                         rc = NLP_STE_FREED_NODE;
 770                 } else {
 771                         rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
 772                                         NLP_EVT_CMPL_PLOGI);
 773                 }
 774         } else {
 775                 /* Good status, call state machine */
 776                 ndlp = lpfc_plogi_confirm_nport(phba, cmdiocb, ndlp);
 777                 rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
 778                                         NLP_EVT_CMPL_PLOGI);
 779         }
 780
 781         if (disc && phba->num_disc_nodes) {
 782                 /* Check to see if there are more PLOGIs to be sent */
 783                 lpfc_more_plogi(phba);
 784         }
 785
 786         if (phba->num_disc_nodes == 0) {
 787                 spin_lock_irq(phba->host->host_lock);
 788                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 789                 spin_unlock_irq(phba->host->host_lock);
 790
 791                 lpfc_can_disctmo(phba);
 792                 if (phba->fc_flag & FC_RSCN_MODE) {
 793                         /* Check to see if more RSCNs came in while we were
 794                          * processing this one.
 795                          */
 796                         if ((phba->fc_rscn_id_cnt == 0) &&
 797                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
 798                                 spin_lock_irq(phba->host->host_lock);
 799                                 phba->fc_flag &= ~FC_RSCN_MODE;
 800                                 spin_unlock_irq(phba->host->host_lock);
 801                         } else {
 802                                 lpfc_els_handle_rscn(phba);
 803                         }
 804                 }
 805         }
 806
 807 out:
 808         lpfc_els_free_iocb(phba, cmdiocb);
 809         return;
 810 }
 811
 812 int
 813 lpfc_issue_els_plogi(struct lpfc_hba * phba, uint32_t did, uint8_t retry)
 814 {
 815         struct serv_parm *sp;
 816         IOCB_t *icmd;
 817         struct lpfc_iocbq *elsiocb;
 818         struct lpfc_sli_ring *pring;
 819         struct lpfc_sli *psli;
 820         uint8_t *pcmd;
 821         uint16_t cmdsize;
 822
 823         psli = &phba->sli;
 824         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
 825
 826         cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
 827         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, 0, did,
 828                                                                 ELS_CMD_PLOGI);
 829         if (!elsiocb)
 830                 return 1;
 831
 832         icmd = &elsiocb->iocb;
 833         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
 834
 835         /* For PLOGI request, remainder of payload is service parameters */
 836         *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
 837         pcmd += sizeof (uint32_t);
 838         memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
 839         sp = (struct serv_parm *) pcmd;
 840
 841         if (sp->cmn.fcphLow < FC_PH_4_3)
 842                 sp->cmn.fcphLow = FC_PH_4_3;
 843
 844         if (sp->cmn.fcphHigh < FC_PH3)
 845                 sp->cmn.fcphHigh = FC_PH3;
 846
 847         phba->fc_stat.elsXmitPLOGI++;
 848         elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
 849         spin_lock_irq(phba->host->host_lock);
 850         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
 851                 spin_unlock_irq(phba->host->host_lock);
 852                 lpfc_els_free_iocb(phba, elsiocb);
 853                 return 1;
 854         }
 855         spin_unlock_irq(phba->host->host_lock);
 856         return 0;
 857 }
 858
 859 static void
 860 lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 861                    struct lpfc_iocbq * rspiocb)
 862 {
 863         IOCB_t *irsp;
 864         struct lpfc_sli *psli;
 865         struct lpfc_nodelist *ndlp;
 866
 867         psli = &phba->sli;
 868         /* we pass cmdiocb to state machine which needs rspiocb as well */
 869         cmdiocb->context_un.rsp_iocb = rspiocb;
 870
 871         irsp = &(rspiocb->iocb);
 872         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
 873         spin_lock_irq(phba->host->host_lock);
 874         ndlp->nlp_flag &= ~NLP_PRLI_SND;
 875         spin_unlock_irq(phba->host->host_lock);
 876
 877         /* PRLI completes to NPort <nlp_DID> */
 878         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
 879                         "%d:0103 PRLI completes to NPort x%x "
 880                         "Data: x%x x%x x%x x%x\n",
 881                         phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
 882                         irsp->un.ulpWord[4], irsp->ulpTimeout,
 883                         phba->num_disc_nodes);
 884
 885         phba->fc_prli_sent--;
 886         /* Check to see if link went down during discovery */
 887         if (lpfc_els_chk_latt(phba))
 888                 goto out;
 889
 890         if (irsp->ulpStatus) {
 891                 /* Check for retry */
 892                 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
 893                         /* ELS command is being retried */
 894                         goto out;
 895                 }
 896                 /* PRLI failed */
 897                 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
 898                 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 899                    ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
 900                    (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
 901                    (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
 902                         goto out;
 903                 } else {
 904                         lpfc_disc_state_machine(phba, ndlp, cmdiocb,
 905                                         NLP_EVT_CMPL_PRLI);
 906                 }
 907         } else {
 908                 /* Good status, call state machine */
 909                 lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI);
 910         }
 911
 912 out:
 913         lpfc_els_free_iocb(phba, cmdiocb);
 914         return;
 915 }
 916
 917 int
 918 lpfc_issue_els_prli(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
 919                     uint8_t retry)
 920 {
 921         PRLI *npr;
 922         IOCB_t *icmd;
 923         struct lpfc_iocbq *elsiocb;
 924         struct lpfc_sli_ring *pring;
 925         struct lpfc_sli *psli;
 926         uint8_t *pcmd;
 927         uint16_t cmdsize;
 928
 929         psli = &phba->sli;
 930         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
 931
 932         cmdsize = (sizeof (uint32_t) + sizeof (PRLI));
 933         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
 934                                         ndlp->nlp_DID, ELS_CMD_PRLI);
 935         if (!elsiocb)
 936                 return 1;
 937
 938         icmd = &elsiocb->iocb;
 939         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
 940
 941         /* For PRLI request, remainder of payload is service parameters */
 942         memset(pcmd, 0, (sizeof (PRLI) + sizeof (uint32_t)));
 943         *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
 944         pcmd += sizeof (uint32_t);
 945
 946         /* For PRLI, remainder of payload is PRLI parameter page */
 947         npr = (PRLI *) pcmd;
 948         /*
 949          * If our firmware version is 3.20 or later,
 950          * set the following bits for FC-TAPE support.
 951          */
 952         if (phba->vpd.rev.feaLevelHigh >= 0x02) {
 953                 npr->ConfmComplAllowed = 1;
 954                 npr->Retry = 1;
 955                 npr->TaskRetryIdReq = 1;
 956         }
 957         npr->estabImagePair = 1;
 958         npr->readXferRdyDis = 1;
 959
 960         /* For FCP support */
 961         npr->prliType = PRLI_FCP_TYPE;
 962         npr->initiatorFunc = 1;
 963
 964         phba->fc_stat.elsXmitPRLI++;
 965         elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
 966         spin_lock_irq(phba->host->host_lock);
 967         ndlp->nlp_flag |= NLP_PRLI_SND;
 968         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
 969                 ndlp->nlp_flag &= ~NLP_PRLI_SND;
 970                 spin_unlock_irq(phba->host->host_lock);
 971                 lpfc_els_free_iocb(phba, elsiocb);
 972                 return 1;
 973         }
 974         spin_unlock_irq(phba->host->host_lock);
 975         phba->fc_prli_sent++;
 976         return 0;
 977 }
 978
 979 static void
 980 lpfc_more_adisc(struct lpfc_hba * phba)
 981 {
 982         int sentadisc;
 983
 984         if (phba->num_disc_nodes)
 985                 phba->num_disc_nodes--;
 986
 987         /* Continue discovery with <num_disc_nodes> ADISCs to go */
 988         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 989                         "%d:0210 Continue discovery with %d ADISCs to go "
 990                         "Data: x%x x%x x%x\n",
 991                         phba->brd_no, phba->num_disc_nodes, phba->fc_adisc_cnt,
 992                         phba->fc_flag, phba->hba_state);
 993
 994         /* Check to see if there are more ADISCs to be sent */
 995         if (phba->fc_flag & FC_NLP_MORE) {
 996                 lpfc_set_disctmo(phba);
 997
 998                 /* go thru NPR list and issue any remaining ELS ADISCs */
 999                 sentadisc = lpfc_els_disc_adisc(phba);
1000         }
1001         return;
1002 }
1003
1004 static void
1005 lpfc_rscn_disc(struct lpfc_hba * phba)
1006 {
1007         /* RSCN discovery */
1008         /* go thru NPR list and issue ELS PLOGIs */
1009         if (phba->fc_npr_cnt) {
1010                 if (lpfc_els_disc_plogi(phba))
1011                         return;
1012         }
1013         if (phba->fc_flag & FC_RSCN_MODE) {
1014                 /* Check to see if more RSCNs came in while we were
1015                  * processing this one.
1016                  */
1017                 if ((phba->fc_rscn_id_cnt == 0) &&
1018                     (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1019                         spin_lock_irq(phba->host->host_lock);
1020                         phba->fc_flag &= ~FC_RSCN_MODE;
1021                         spin_unlock_irq(phba->host->host_lock);
1022                 } else {
1023                         lpfc_els_handle_rscn(phba);
1024                 }
1025         }
1026 }
1027
1028 static void
1029 lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1030                     struct lpfc_iocbq * rspiocb)
1031 {
1032         IOCB_t *irsp;
1033         struct lpfc_sli *psli;
1034         struct lpfc_nodelist *ndlp;
1035         LPFC_MBOXQ_t *mbox;
1036         int disc, rc;
1037
1038         psli = &phba->sli;
1039
1040         /* we pass cmdiocb to state machine which needs rspiocb as well */
1041         cmdiocb->context_un.rsp_iocb = rspiocb;
1042
1043         irsp = &(rspiocb->iocb);
1044         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1045
1046         /* Since ndlp can be freed in the disc state machine, note if this node
1047          * is being used during discovery.
1048          */
1049         disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1050         spin_lock_irq(phba->host->host_lock);
1051         ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
1052         spin_unlock_irq(phba->host->host_lock);
1053
1054         /* ADISC completes to NPort <nlp_DID> */
1055         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1056                         "%d:0104 ADISC completes to NPort x%x "
1057                         "Data: x%x x%x x%x x%x x%x\n",
1058                         phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
1059                         irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
1060                         phba->num_disc_nodes);
1061
1062         /* Check to see if link went down during discovery */
1063         if (lpfc_els_chk_latt(phba)) {
1064                 spin_lock_irq(phba->host->host_lock);
1065                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1066                 spin_unlock_irq(phba->host->host_lock);
1067                 goto out;
1068         }
1069
1070         if (irsp->ulpStatus) {
1071                 /* Check for retry */
1072                 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1073                         /* ELS command is being retried */
1074                         if (disc) {
1075                                 spin_lock_irq(phba->host->host_lock);
1076                                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1077                                 spin_unlock_irq(phba->host->host_lock);
1078                                 lpfc_set_disctmo(phba);
1079                         }
1080                         goto out;
1081                 }
1082                 /* ADISC failed */
1083                 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1084                 if ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1085                    ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) &&
1086                    (irsp->un.ulpWord[4] != IOERR_LINK_DOWN) &&
1087                    (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) {
1088                         lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1089                                         NLP_EVT_CMPL_ADISC);
1090                 }
1091         } else {
1092                 /* Good status, call state machine */
1093                 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1094                                         NLP_EVT_CMPL_ADISC);
1095         }
1096
1097         if (disc && phba->num_disc_nodes) {
1098                 /* Check to see if there are more ADISCs to be sent */
1099                 lpfc_more_adisc(phba);
1100
1101                 /* Check to see if we are done with ADISC authentication */
1102                 if (phba->num_disc_nodes == 0) {
1103                         lpfc_can_disctmo(phba);
1104                         /* If we get here, there is nothing left to wait for */
1105                         if ((phba->hba_state < LPFC_HBA_READY) &&
1106                             (phba->hba_state != LPFC_CLEAR_LA)) {
1107                                 /* Link up discovery */
1108                                 if ((mbox = mempool_alloc(phba->mbox_mem_pool,
1109                                                           GFP_KERNEL))) {
1110                                         phba->hba_state = LPFC_CLEAR_LA;
1111                                         lpfc_clear_la(phba, mbox);
1112                                         mbox->mbox_cmpl =
1113                                             lpfc_mbx_cmpl_clear_la;
1114                                         rc = lpfc_sli_issue_mbox
1115                                                 (phba, mbox,
1116                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1117                                         if (rc == MBX_NOT_FINISHED) {
1118                                                 mempool_free(mbox,
1119                                                      phba->mbox_mem_pool);
1120                                                 lpfc_disc_flush_list(phba);
1121                                                 psli->ring[(psli->ip_ring)].
1122                                                     flag &=
1123                                                     ~LPFC_STOP_IOCB_EVENT;
1124                                                 psli->ring[(psli->fcp_ring)].
1125                                                     flag &=
1126                                                     ~LPFC_STOP_IOCB_EVENT;
1127                                                 psli->ring[(psli->next_ring)].
1128                                                     flag &=
1129                                                     ~LPFC_STOP_IOCB_EVENT;
1130                                                 phba->hba_state =
1131                                                     LPFC_HBA_READY;
1132                                         }
1133                                 }
1134                         } else {
1135                                 lpfc_rscn_disc(phba);
1136                         }
1137                 }
1138         }
1139 out:
1140         lpfc_els_free_iocb(phba, cmdiocb);
1141         return;
1142 }
1143
1144 int
1145 lpfc_issue_els_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
1146                      uint8_t retry)
1147 {
1148         ADISC *ap;
1149         IOCB_t *icmd;
1150         struct lpfc_iocbq *elsiocb;
1151         struct lpfc_sli_ring *pring;
1152         struct lpfc_sli *psli;
1153         uint8_t *pcmd;
1154         uint16_t cmdsize;
1155
1156         psli = &phba->sli;
1157         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
1158
1159         cmdsize = (sizeof (uint32_t) + sizeof (ADISC));
1160         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1161                                                 ndlp->nlp_DID, ELS_CMD_ADISC);
1162         if (!elsiocb)
1163                 return 1;
1164
1165         icmd = &elsiocb->iocb;
1166         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1167
1168         /* For ADISC request, remainder of payload is service parameters */
1169         *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
1170         pcmd += sizeof (uint32_t);
1171
1172         /* Fill in ADISC payload */
1173         ap = (ADISC *) pcmd;
1174         ap->hardAL_PA = phba->fc_pref_ALPA;
1175         memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
1176         memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1177         ap->DID = be32_to_cpu(phba->fc_myDID);
1178
1179         phba->fc_stat.elsXmitADISC++;
1180         elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
1181         spin_lock_irq(phba->host->host_lock);
1182         ndlp->nlp_flag |= NLP_ADISC_SND;
1183         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1184                 ndlp->nlp_flag &= ~NLP_ADISC_SND;
1185                 spin_unlock_irq(phba->host->host_lock);
1186                 lpfc_els_free_iocb(phba, elsiocb);
1187                 return 1;
1188         }
1189         spin_unlock_irq(phba->host->host_lock);
1190         return 0;
1191 }
1192
1193 static void
1194 lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1195                    struct lpfc_iocbq * rspiocb)
1196 {
1197         IOCB_t *irsp;
1198         struct lpfc_sli *psli;
1199         struct lpfc_nodelist *ndlp;
1200
1201         psli = &phba->sli;
1202         /* we pass cmdiocb to state machine which needs rspiocb as well */
1203         cmdiocb->context_un.rsp_iocb = rspiocb;
1204
1205         irsp = &(rspiocb->iocb);
1206         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1207         spin_lock_irq(phba->host->host_lock);
1208         ndlp->nlp_flag &= ~NLP_LOGO_SND;
1209         spin_unlock_irq(phba->host->host_lock);
1210
1211         /* LOGO completes to NPort <nlp_DID> */
1212         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1213                         "%d:0105 LOGO completes to NPort x%x "
1214                         "Data: x%x x%x x%x x%x\n",
1215                         phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
1216                         irsp->un.ulpWord[4], irsp->ulpTimeout,
1217                         phba->num_disc_nodes);
1218
1219         /* Check to see if link went down during discovery */
1220         if (lpfc_els_chk_latt(phba))
1221                 goto out;
1222
1223         if (irsp->ulpStatus) {
1224                 /* Check for retry */
1225                 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1226                         /* ELS command is being retried */
1227                         goto out;
1228                 }
1229                 /* LOGO failed */
1230                 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1231                 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1232                    ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
1233                    (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
1234                    (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
1235                         goto out;
1236                 } else {
1237                         lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1238                                         NLP_EVT_CMPL_LOGO);
1239                 }
1240         } else {
1241                 /* Good status, call state machine.
1242                  * This will unregister the rpi if needed.
1243                  */
1244                 lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
1245         }
1246
1247 out:
1248         lpfc_els_free_iocb(phba, cmdiocb);
1249         return;
1250 }
1251
1252 int
1253 lpfc_issue_els_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
1254                     uint8_t retry)
1255 {
1256         IOCB_t *icmd;
1257         struct lpfc_iocbq *elsiocb;
1258         struct lpfc_sli_ring *pring;
1259         struct lpfc_sli *psli;
1260         uint8_t *pcmd;
1261         uint16_t cmdsize;
1262
1263         psli = &phba->sli;
1264         pring = &psli->ring[LPFC_ELS_RING];
1265
1266         cmdsize = 2 * (sizeof (uint32_t) + sizeof (struct lpfc_name));
1267         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1268                                                 ndlp->nlp_DID, ELS_CMD_LOGO);
1269         if (!elsiocb)
1270                 return 1;
1271
1272         icmd = &elsiocb->iocb;
1273         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1274         *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
1275         pcmd += sizeof (uint32_t);
1276
1277         /* Fill in LOGO payload */
1278         *((uint32_t *) (pcmd)) = be32_to_cpu(phba->fc_myDID);
1279         pcmd += sizeof (uint32_t);
1280         memcpy(pcmd, &phba->fc_portname, sizeof (struct lpfc_name));
1281
1282         phba->fc_stat.elsXmitLOGO++;
1283         elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
1284         spin_lock_irq(phba->host->host_lock);
1285         ndlp->nlp_flag |= NLP_LOGO_SND;
1286         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1287                 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1288                 spin_unlock_irq(phba->host->host_lock);
1289                 lpfc_els_free_iocb(phba, elsiocb);
1290                 return 1;
1291         }
1292         spin_unlock_irq(phba->host->host_lock);
1293         return 0;
1294 }
1295
1296 static void
1297 lpfc_cmpl_els_cmd(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1298                   struct lpfc_iocbq * rspiocb)
1299 {
1300         IOCB_t *irsp;
1301
1302         irsp = &rspiocb->iocb;
1303
1304         /* ELS cmd tag <ulpIoTag> completes */
1305         lpfc_printf_log(phba,
1306                         KERN_INFO,
1307                         LOG_ELS,
1308                         "%d:0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
1309                         phba->brd_no,
1310                         irsp->ulpIoTag, irsp->ulpStatus,
1311                         irsp->un.ulpWord[4], irsp->ulpTimeout);
1312
1313         /* Check to see if link went down during discovery */
1314         lpfc_els_chk_latt(phba);
1315         lpfc_els_free_iocb(phba, cmdiocb);
1316         return;
1317 }
1318
1319 int
1320 lpfc_issue_els_scr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
1321 {
1322         IOCB_t *icmd;
1323         struct lpfc_iocbq *elsiocb;
1324         struct lpfc_sli_ring *pring;
1325         struct lpfc_sli *psli;
1326         uint8_t *pcmd;
1327         uint16_t cmdsize;
1328         struct lpfc_nodelist *ndlp;
1329
1330         psli = &phba->sli;
1331         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
1332         cmdsize = (sizeof (uint32_t) + sizeof (SCR));
1333         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1334         if (!ndlp)
1335                 return 1;
1336
1337         lpfc_nlp_init(phba, ndlp, nportid);
1338
1339         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1340                                                 ndlp->nlp_DID, ELS_CMD_SCR);
1341         if (!elsiocb) {
1342                 mempool_free( ndlp, phba->nlp_mem_pool);
1343                 return 1;
1344         }
1345
1346         icmd = &elsiocb->iocb;
1347         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1348
1349         *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
1350         pcmd += sizeof (uint32_t);
1351
1352         /* For SCR, remainder of payload is SCR parameter page */
1353         memset(pcmd, 0, sizeof (SCR));
1354         ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
1355
1356         phba->fc_stat.elsXmitSCR++;
1357         elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1358         spin_lock_irq(phba->host->host_lock);
1359         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1360                 spin_unlock_irq(phba->host->host_lock);
1361                 mempool_free( ndlp, phba->nlp_mem_pool);
1362                 lpfc_els_free_iocb(phba, elsiocb);
1363                 return 1;
1364         }
1365         spin_unlock_irq(phba->host->host_lock);
1366         mempool_free( ndlp, phba->nlp_mem_pool);
1367         return 0;
1368 }
1369
1370 static int
1371 lpfc_issue_els_farpr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
1372 {
1373         IOCB_t *icmd;
1374         struct lpfc_iocbq *elsiocb;
1375         struct lpfc_sli_ring *pring;
1376         struct lpfc_sli *psli;
1377         FARP *fp;
1378         uint8_t *pcmd;
1379         uint32_t *lp;
1380         uint16_t cmdsize;
1381         struct lpfc_nodelist *ondlp;
1382         struct lpfc_nodelist *ndlp;
1383
1384         psli = &phba->sli;
1385         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
1386         cmdsize = (sizeof (uint32_t) + sizeof (FARP));
1387         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1388         if (!ndlp)
1389                 return 1;
1390         lpfc_nlp_init(phba, ndlp, nportid);
1391
1392         elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
1393                                                 ndlp->nlp_DID, ELS_CMD_RNID);
1394         if (!elsiocb) {
1395                 mempool_free( ndlp, phba->nlp_mem_pool);
1396                 return 1;
1397         }
1398
1399         icmd = &elsiocb->iocb;
1400         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1401
1402         *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
1403         pcmd += sizeof (uint32_t);
1404
1405         /* Fill in FARPR payload */
1406         fp = (FARP *) (pcmd);
1407         memset(fp, 0, sizeof (FARP));
1408         lp = (uint32_t *) pcmd;
1409         *lp++ = be32_to_cpu(nportid);
1410         *lp++ = be32_to_cpu(phba->fc_myDID);
1411         fp->Rflags = 0;
1412         fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
1413
1414         memcpy(&fp->RportName, &phba->fc_portname, sizeof (struct lpfc_name));
1415         memcpy(&fp->RnodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1416         if ((ondlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, nportid))) {
1417                 memcpy(&fp->OportName, &ondlp->nlp_portname,
1418                        sizeof (struct lpfc_name));
1419                 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
1420                        sizeof (struct lpfc_name));
1421         }
1422
1423         phba->fc_stat.elsXmitFARPR++;
1424         elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1425         spin_lock_irq(phba->host->host_lock);
1426         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1427                 spin_unlock_irq(phba->host->host_lock);
1428                 mempool_free( ndlp, phba->nlp_mem_pool);
1429                 lpfc_els_free_iocb(phba, elsiocb);
1430                 return 1;
1431         }
1432         spin_unlock_irq(phba->host->host_lock);
1433         mempool_free( ndlp, phba->nlp_mem_pool);
1434         return 0;
1435 }
1436
1437 void
1438 lpfc_cancel_retry_delay_tmo(struct lpfc_hba *phba, struct lpfc_nodelist * nlp)
1439 {
1440         nlp->nlp_flag &= ~NLP_DELAY_TMO;
1441         del_timer_sync(&nlp->nlp_delayfunc);
1442         nlp->nlp_last_elscmd = 0;
1443
1444         if (!list_empty(&nlp->els_retry_evt.evt_listp))
1445                 list_del_init(&nlp->els_retry_evt.evt_listp);
1446
1447         if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
1448                 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1449                 if (phba->num_disc_nodes) {
1450                         /* Check to see if there are more
1451                          * PLOGIs to be sent
1452                          */
1453                         lpfc_more_plogi(phba);
1454                 }
1455
1456                 if (phba->num_disc_nodes == 0) {
1457                         phba->fc_flag &= ~FC_NDISC_ACTIVE;
1458                         lpfc_can_disctmo(phba);
1459                         if (phba->fc_flag & FC_RSCN_MODE) {
1460                                 /* Check to see if more RSCNs
1461                                  * came in while we were
1462                                  * processing this one.
1463                                  */
1464                                 if((phba->fc_rscn_id_cnt==0) &&
1465                                    (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1466                                         phba->fc_flag &= ~FC_RSCN_MODE;
1467                                 }
1468                                 else {
1469                                         lpfc_els_handle_rscn(phba);
1470                                 }
1471                         }
1472                 }
1473         }
1474         return;
1475 }
1476
1477 void
1478 lpfc_els_retry_delay(unsigned long ptr)
1479 {
1480         struct lpfc_nodelist *ndlp;
1481         struct lpfc_hba *phba;
1482         unsigned long iflag;
1483         struct lpfc_work_evt  *evtp;
1484
1485         ndlp = (struct lpfc_nodelist *)ptr;
1486         phba = ndlp->nlp_phba;
1487         evtp = &ndlp->els_retry_evt;
1488
1489         spin_lock_irqsave(phba->host->host_lock, iflag);
1490         if (!list_empty(&evtp->evt_listp)) {
1491                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1492                 return;
1493         }
1494
1495         evtp->evt_arg1  = ndlp;
1496         evtp->evt       = LPFC_EVT_ELS_RETRY;
1497         list_add_tail(&evtp->evt_listp, &phba->work_list);
1498         if (phba->work_wait)
1499                 wake_up(phba->work_wait);
1500
1501         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1502         return;
1503 }
1504
1505 void
1506 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
1507 {
1508         struct lpfc_hba *phba;
1509         uint32_t cmd;
1510         uint32_t did;
1511         uint8_t retry;
1512
1513         phba = ndlp->nlp_phba;
1514         spin_lock_irq(phba->host->host_lock);
1515         did = ndlp->nlp_DID;
1516         cmd = ndlp->nlp_last_elscmd;
1517         ndlp->nlp_last_elscmd = 0;
1518
1519         if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1520                 spin_unlock_irq(phba->host->host_lock);
1521                 return;
1522         }
1523
1524         ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1525         spin_unlock_irq(phba->host->host_lock);
1526         retry = ndlp->nlp_retry;
1527
1528         switch (cmd) {
1529         case ELS_CMD_FLOGI:
1530                 lpfc_issue_els_flogi(phba, ndlp, retry);
1531                 break;
1532         case ELS_CMD_PLOGI:
1533                 if(!lpfc_issue_els_plogi(phba, ndlp->nlp_DID, retry)) {
1534                         ndlp->nlp_prev_state = ndlp->nlp_state;
1535                         ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1536                         lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1537                 }
1538                 break;
1539         case ELS_CMD_ADISC:
1540                 if (!lpfc_issue_els_adisc(phba, ndlp, retry)) {
1541                         ndlp->nlp_prev_state = ndlp->nlp_state;
1542                         ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1543                         lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1544                 }
1545                 break;
1546         case ELS_CMD_PRLI:
1547                 if (!lpfc_issue_els_prli(phba, ndlp, retry)) {
1548                         ndlp->nlp_prev_state = ndlp->nlp_state;
1549                         ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1550                         lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1551                 }
1552                 break;
1553         case ELS_CMD_LOGO:
1554                 if (!lpfc_issue_els_logo(phba, ndlp, retry)) {
1555                         ndlp->nlp_prev_state = ndlp->nlp_state;
1556                         ndlp->nlp_state = NLP_STE_NPR_NODE;
1557                         lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1558                 }
1559                 break;
1560         }
1561         return;
1562 }
1563
1564 static int
1565 lpfc_els_retry(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1566                struct lpfc_iocbq * rspiocb)
1567 {
1568         IOCB_t *irsp;
1569         struct lpfc_dmabuf *pcmd;
1570         struct lpfc_nodelist *ndlp;
1571         uint32_t *elscmd;
1572         struct ls_rjt stat;
1573         int retry, maxretry;
1574         int delay;
1575         uint32_t cmd;
1576         uint32_t did;
1577
1578         retry = 0;
1579         delay = 0;
1580         maxretry = lpfc_max_els_tries;
1581         irsp = &rspiocb->iocb;
1582         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1583         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1584         cmd = 0;
1585
1586         /* Note: context2 may be 0 for internal driver abort
1587          * of delays ELS command.
1588          */
1589
1590         if (pcmd && pcmd->virt) {
1591                 elscmd = (uint32_t *) (pcmd->virt);
1592                 cmd = *elscmd++;
1593         }
1594
1595         if(ndlp)
1596                 did = ndlp->nlp_DID;
1597         else {
1598                 /* We should only hit this case for retrying PLOGI */
1599                 did = irsp->un.elsreq64.remoteID;
1600                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1601                 if (!ndlp && (cmd != ELS_CMD_PLOGI))
1602                         return 1;
1603         }
1604
1605         switch (irsp->ulpStatus) {
1606         case IOSTAT_FCP_RSP_ERROR:
1607         case IOSTAT_REMOTE_STOP:
1608                 break;
1609
1610         case IOSTAT_LOCAL_REJECT:
1611                 switch ((irsp->un.ulpWord[4] & 0xff)) {
1612                 case IOERR_LOOP_OPEN_FAILURE:
1613                         if (cmd == ELS_CMD_PLOGI) {
1614                                 if (cmdiocb->retry == 0) {
1615                                         delay = 1;
1616                                 }
1617                         }
1618                         retry = 1;
1619                         break;
1620
1621                 case IOERR_SEQUENCE_TIMEOUT:
1622                         retry = 1;
1623                         break;
1624
1625                 case IOERR_NO_RESOURCES:
1626                         if (cmd == ELS_CMD_PLOGI) {
1627                                 delay = 1;
1628                         }
1629                         retry = 1;
1630                         break;
1631
1632                 case IOERR_INVALID_RPI:
1633                         retry = 1;
1634                         break;
1635                 }
1636                 break;
1637
1638         case IOSTAT_NPORT_RJT:
1639         case IOSTAT_FABRIC_RJT:
1640                 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
1641                         retry = 1;
1642                         break;
1643                 }
1644                 break;
1645
1646         case IOSTAT_NPORT_BSY:
1647         case IOSTAT_FABRIC_BSY:
1648                 retry = 1;
1649                 break;
1650
1651         case IOSTAT_LS_RJT:
1652                 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
1653                 /* Added for Vendor specifc support
1654                  * Just keep retrying for these Rsn / Exp codes
1655                  */
1656                 switch (stat.un.b.lsRjtRsnCode) {
1657                 case LSRJT_UNABLE_TPC:
1658                         if (stat.un.b.lsRjtRsnCodeExp ==
1659                             LSEXP_CMD_IN_PROGRESS) {
1660                                 if (cmd == ELS_CMD_PLOGI) {
1661                                         delay = 1;
1662                                         maxretry = 48;
1663                                 }
1664                                 retry = 1;
1665                                 break;
1666                         }
1667                         if (cmd == ELS_CMD_PLOGI) {
1668                                 delay = 1;
1669                                 maxretry = lpfc_max_els_tries + 1;
1670                                 retry = 1;
1671                                 break;
1672                         }
1673                         break;
1674
1675                 case LSRJT_LOGICAL_BSY:
1676                         if (cmd == ELS_CMD_PLOGI) {
1677                                 delay = 1;
1678                                 maxretry = 48;
1679                         }
1680                         retry = 1;
1681                         break;
1682                 }
1683                 break;
1684
1685         case IOSTAT_INTERMED_RSP:
1686         case IOSTAT_BA_RJT:
1687                 break;
1688
1689         default:
1690                 break;
1691         }
1692
1693         if (did == FDMI_DID)
1694                 retry = 1;
1695
1696         if ((++cmdiocb->retry) >= maxretry) {
1697                 phba->fc_stat.elsRetryExceeded++;
1698                 retry = 0;
1699         }
1700
1701         if (retry) {
1702
1703                 /* Retry ELS command <elsCmd> to remote NPORT <did> */
1704                 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1705                                 "%d:0107 Retry ELS command x%x to remote "
1706                                 "NPORT x%x Data: x%x x%x\n",
1707                                 phba->brd_no,
1708                                 cmd, did, cmdiocb->retry, delay);
1709
1710                 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) {
1711                         /* If discovery / RSCN timer is running, reset it */
1712                         if (timer_pending(&phba->fc_disctmo) ||
1713                               (phba->fc_flag & FC_RSCN_MODE)) {
1714                                 lpfc_set_disctmo(phba);
1715                         }
1716                 }
1717
1718                 phba->fc_stat.elsXmitRetry++;
1719                 if (ndlp && delay) {
1720                         phba->fc_stat.elsDelayRetry++;
1721                         ndlp->nlp_retry = cmdiocb->retry;
1722
1723                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1724                         ndlp->nlp_flag |= NLP_DELAY_TMO;
1725
1726                         ndlp->nlp_prev_state = ndlp->nlp_state;
1727                         ndlp->nlp_state = NLP_STE_NPR_NODE;
1728                         lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1729                         ndlp->nlp_last_elscmd = cmd;
1730
1731                         return 1;
1732                 }
1733                 switch (cmd) {
1734                 case ELS_CMD_FLOGI:
1735                         lpfc_issue_els_flogi(phba, ndlp, cmdiocb->retry);
1736                         return 1;
1737                 case ELS_CMD_PLOGI:
1738                         if (ndlp) {
1739                                 ndlp->nlp_prev_state = ndlp->nlp_state;
1740                                 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1741                                 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1742                         }
1743                         lpfc_issue_els_plogi(phba, did, cmdiocb->retry);
1744                         return 1;
1745                 case ELS_CMD_ADISC:
1746                         ndlp->nlp_prev_state = ndlp->nlp_state;
1747                         ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1748                         lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1749                         lpfc_issue_els_adisc(phba, ndlp, cmdiocb->retry);
1750                         return 1;
1751                 case ELS_CMD_PRLI:
1752                         ndlp->nlp_prev_state = ndlp->nlp_state;
1753                         ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1754                         lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1755                         lpfc_issue_els_prli(phba, ndlp, cmdiocb->retry);
1756                         return 1;
1757                 case ELS_CMD_LOGO:
1758                         ndlp->nlp_prev_state = ndlp->nlp_state;
1759                         ndlp->nlp_state = NLP_STE_NPR_NODE;
1760                         lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1761                         lpfc_issue_els_logo(phba, ndlp, cmdiocb->retry);
1762                         return 1;
1763                 }
1764         }
1765
1766         /* No retry ELS command <elsCmd> to remote NPORT <did> */
1767         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1768                         "%d:0108 No retry ELS command x%x to remote NPORT x%x "
1769                         "Data: x%x\n",
1770                         phba->brd_no,
1771                         cmd, did, cmdiocb->retry);
1772
1773         return 0;
1774 }
1775
1776 int
1777 lpfc_els_free_iocb(struct lpfc_hba * phba, struct lpfc_iocbq * elsiocb)
1778 {
1779         struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
1780
1781         /* context2  = cmd,  context2->next = rsp, context3 = bpl */
1782         if (elsiocb->context2) {
1783                 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
1784                 /* Free the response before processing the command.  */
1785                 if (!list_empty(&buf_ptr1->list)) {
1786                         list_remove_head(&buf_ptr1->list, buf_ptr,
1787                                          struct lpfc_dmabuf,
1788                                          list);
1789                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1790                         kfree(buf_ptr);
1791                 }
1792                 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
1793                 kfree(buf_ptr1);
1794         }
1795
1796         if (elsiocb->context3) {
1797                 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
1798                 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1799                 kfree(buf_ptr);
1800         }
1801         spin_lock_irq(phba->host->host_lock);
1802         lpfc_sli_release_iocbq(phba, elsiocb);
1803         spin_unlock_irq(phba->host->host_lock);
1804         return 0;
1805 }
1806
1807 static void
1808 lpfc_cmpl_els_logo_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1809                        struct lpfc_iocbq * rspiocb)
1810 {
1811         struct lpfc_nodelist *ndlp;
1812
1813         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1814
1815         /* ACC to LOGO completes to NPort <nlp_DID> */
1816         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1817                         "%d:0109 ACC to LOGO completes to NPort x%x "
1818                         "Data: x%x x%x x%x\n",
1819                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1820                         ndlp->nlp_state, ndlp->nlp_rpi);
1821
1822         switch (ndlp->nlp_state) {
1823         case NLP_STE_UNUSED_NODE:       /* node is just allocated */
1824                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1825                 break;
1826         case NLP_STE_NPR_NODE:          /* NPort Recovery mode */
1827                 lpfc_unreg_rpi(phba, ndlp);
1828                 break;
1829         default:
1830                 break;
1831         }
1832         lpfc_els_free_iocb(phba, cmdiocb);
1833         return;
1834 }
1835
1836 static void
1837 lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1838                   struct lpfc_iocbq * rspiocb)
1839 {
1840         struct lpfc_nodelist *ndlp;
1841         LPFC_MBOXQ_t *mbox = NULL;
1842
1843         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1844         if (cmdiocb->context_un.mbox)
1845                 mbox = cmdiocb->context_un.mbox;
1846
1847
1848         /* Check to see if link went down during discovery */
1849         if ((lpfc_els_chk_latt(phba)) || !ndlp) {
1850                 if (mbox) {
1851                         mempool_free( mbox, phba->mbox_mem_pool);
1852                 }
1853                 goto out;
1854         }
1855
1856         /* ELS response tag <ulpIoTag> completes */
1857         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1858                         "%d:0110 ELS response tag x%x completes "
1859                         "Data: x%x x%x x%x x%x x%x x%x x%x\n",
1860                         phba->brd_no,
1861                         cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
1862                         rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
1863                         ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
1864                         ndlp->nlp_rpi);
1865
1866         if (mbox) {
1867                 if ((rspiocb->iocb.ulpStatus == 0)
1868                     && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
1869                         /* set_slim mailbox command needs to execute first,
1870                          * queue this command to be processed later.
1871                          */
1872                         lpfc_unreg_rpi(phba, ndlp);
1873                         mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1874                         mbox->context2 = ndlp;
1875                         ndlp->nlp_prev_state = ndlp->nlp_state;
1876                         ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE;
1877                         lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST);
1878                         if (lpfc_sli_issue_mbox(phba, mbox,
1879                                                 (MBX_NOWAIT | MBX_STOP_IOCB))
1880                             != MBX_NOT_FINISHED) {
1881                                 goto out;
1882                         }
1883                         /* NOTE: we should have messages for unsuccessful
1884                            reglogin */
1885                         mempool_free( mbox, phba->mbox_mem_pool);
1886                 } else {
1887                         mempool_free( mbox, phba->mbox_mem_pool);
1888                         if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1889                                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1890                                 ndlp = NULL;
1891                         }
1892                 }
1893         }
1894 out:
1895         if (ndlp) {
1896                 spin_lock_irq(phba->host->host_lock);
1897                 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
1898                 spin_unlock_irq(phba->host->host_lock);
1899         }
1900         lpfc_els_free_iocb(phba, cmdiocb);
1901         return;
1902 }
1903
1904 int
1905 lpfc_els_rsp_acc(struct lpfc_hba * phba, uint32_t flag,
1906                  struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp,
1907                  LPFC_MBOXQ_t * mbox, uint8_t newnode)
1908 {
1909         IOCB_t *icmd;
1910         IOCB_t *oldcmd;
1911         struct lpfc_iocbq *elsiocb;
1912         struct lpfc_sli_ring *pring;
1913         struct lpfc_sli *psli;
1914         uint8_t *pcmd;
1915         uint16_t cmdsize;
1916         int rc;
1917
1918         psli = &phba->sli;
1919         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
1920         oldcmd = &oldiocb->iocb;
1921
1922         switch (flag) {
1923         case ELS_CMD_ACC:
1924                 cmdsize = sizeof (uint32_t);
1925                 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1926                                         ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
1927                 if (!elsiocb) {
1928                         ndlp->nlp_flag &= ~NLP_LOGO_ACC;
1929                         return 1;
1930                 }
1931                 icmd = &elsiocb->iocb;
1932                 icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
1933                 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1934                 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1935                 pcmd += sizeof (uint32_t);
1936                 break;
1937         case ELS_CMD_PLOGI:
1938                 cmdsize = (sizeof (struct serv_parm) + sizeof (uint32_t));
1939                 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1940                                         ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
1941                 if (!elsiocb)
1942                         return 1;
1943
1944                 icmd = &elsiocb->iocb;
1945                 icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
1946                 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1947
1948                 if (mbox)
1949                         elsiocb->context_un.mbox = mbox;
1950
1951                 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1952                 pcmd += sizeof (uint32_t);
1953                 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
1954                 break;
1955         default:
1956                 return 1;
1957         }
1958
1959         if (newnode)
1960                 elsiocb->context1 = NULL;
1961
1962         /* Xmit ELS ACC response tag <ulpIoTag> */
1963         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1964                         "%d:0128 Xmit ELS ACC response tag x%x "
1965                         "Data: x%x x%x x%x x%x x%x\n",
1966                         phba->brd_no,
1967                         elsiocb->iocb.ulpIoTag,
1968                         elsiocb->iocb.ulpContext, ndlp->nlp_DID,
1969                         ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
1970
1971         if (ndlp->nlp_flag & NLP_LOGO_ACC) {
1972                 spin_lock_irq(phba->host->host_lock);
1973                 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
1974                 spin_unlock_irq(phba->host->host_lock);
1975                 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
1976         } else {
1977                 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
1978         }
1979
1980         phba->fc_stat.elsXmitACC++;
1981         spin_lock_irq(phba->host->host_lock);
1982         rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
1983         spin_unlock_irq(phba->host->host_lock);
1984         if (rc == IOCB_ERROR) {
1985                 lpfc_els_free_iocb(phba, elsiocb);
1986                 return 1;
1987         }
1988         return 0;
1989 }
1990
1991 int
1992 lpfc_els_rsp_reject(struct lpfc_hba * phba, uint32_t rejectError,
1993                     struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
1994 {
1995         IOCB_t *icmd;
1996         IOCB_t *oldcmd;
1997         struct lpfc_iocbq *elsiocb;
1998         struct lpfc_sli_ring *pring;
1999         struct lpfc_sli *psli;
2000         uint8_t *pcmd;
2001         uint16_t cmdsize;
2002         int rc;
2003
2004         psli = &phba->sli;
2005         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
2006
2007         cmdsize = 2 * sizeof (uint32_t);
2008         elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2009                                         ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
2010         if (!elsiocb)
2011                 return 1;
2012
2013         icmd = &elsiocb->iocb;
2014         oldcmd = &oldiocb->iocb;
2015         icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
2016         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2017
2018         *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
2019         pcmd += sizeof (uint32_t);
2020         *((uint32_t *) (pcmd)) = rejectError;
2021
2022         /* Xmit ELS RJT <err> response tag <ulpIoTag> */
2023         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2024                         "%d:0129 Xmit ELS RJT x%x response tag x%x "
2025                         "Data: x%x x%x x%x x%x x%x\n",
2026                         phba->brd_no,
2027                         rejectError, elsiocb->iocb.ulpIoTag,
2028                         elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2029                         ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2030
2031         phba->fc_stat.elsXmitLSRJT++;
2032         elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2033         spin_lock_irq(phba->host->host_lock);
2034         rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2035         spin_unlock_irq(phba->host->host_lock);
2036         if (rc == IOCB_ERROR) {
2037                 lpfc_els_free_iocb(phba, elsiocb);
2038                 return 1;
2039         }
2040         return 0;
2041 }
2042
2043 int
2044 lpfc_els_rsp_adisc_acc(struct lpfc_hba * phba,
2045                        struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2046 {
2047         ADISC *ap;
2048         IOCB_t *icmd;
2049         IOCB_t *oldcmd;
2050         struct lpfc_iocbq *elsiocb;
2051         struct lpfc_sli_ring *pring;
2052         struct lpfc_sli *psli;
2053         uint8_t *pcmd;
2054         uint16_t cmdsize;
2055         int rc;
2056
2057         psli = &phba->sli;
2058         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
2059
2060         cmdsize = sizeof (uint32_t) + sizeof (ADISC);
2061         elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2062                                         ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2063         if (!elsiocb)
2064                 return 1;
2065
2066         /* Xmit ADISC ACC response tag <ulpIoTag> */
2067         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2068                         "%d:0130 Xmit ADISC ACC response tag x%x "
2069                         "Data: x%x x%x x%x x%x x%x\n",
2070                         phba->brd_no,
2071                         elsiocb->iocb.ulpIoTag,
2072                         elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2073                         ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2074
2075         icmd = &elsiocb->iocb;
2076         oldcmd = &oldiocb->iocb;
2077         icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
2078         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2079
2080         *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2081         pcmd += sizeof (uint32_t);
2082
2083         ap = (ADISC *) (pcmd);
2084         ap->hardAL_PA = phba->fc_pref_ALPA;
2085         memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
2086         memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
2087         ap->DID = be32_to_cpu(phba->fc_myDID);
2088
2089         phba->fc_stat.elsXmitACC++;
2090         elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2091         spin_lock_irq(phba->host->host_lock);
2092         rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2093         spin_unlock_irq(phba->host->host_lock);
2094         if (rc == IOCB_ERROR) {
2095                 lpfc_els_free_iocb(phba, elsiocb);
2096                 return 1;
2097         }
2098         return 0;
2099 }
2100
2101 int
2102 lpfc_els_rsp_prli_acc(struct lpfc_hba * phba,
2103                       struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2104 {
2105         PRLI *npr;
2106         lpfc_vpd_t *vpd;
2107         IOCB_t *icmd;
2108         IOCB_t *oldcmd;
2109         struct lpfc_iocbq *elsiocb;
2110         struct lpfc_sli_ring *pring;
2111         struct lpfc_sli *psli;
2112         uint8_t *pcmd;
2113         uint16_t cmdsize;
2114         int rc;
2115
2116         psli = &phba->sli;
2117         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
2118
2119         cmdsize = sizeof (uint32_t) + sizeof (PRLI);
2120         elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp,
2121                 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
2122         if (!elsiocb)
2123                 return 1;
2124
2125         /* Xmit PRLI ACC response tag <ulpIoTag> */
2126         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2127                         "%d:0131 Xmit PRLI ACC response tag x%x "
2128                         "Data: x%x x%x x%x x%x x%x\n",
2129                         phba->brd_no,
2130                         elsiocb->iocb.ulpIoTag,
2131                         elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2132                         ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2133
2134         icmd = &elsiocb->iocb;
2135         oldcmd = &oldiocb->iocb;
2136         icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
2137         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2138
2139         *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
2140         pcmd += sizeof (uint32_t);
2141
2142         /* For PRLI, remainder of payload is PRLI parameter page */
2143         memset(pcmd, 0, sizeof (PRLI));
2144
2145         npr = (PRLI *) pcmd;
2146         vpd = &phba->vpd;
2147         /*
2148          * If our firmware version is 3.20 or later,
2149          * set the following bits for FC-TAPE support.
2150          */
2151         if (vpd->rev.feaLevelHigh >= 0x02) {
2152                 npr->ConfmComplAllowed = 1;
2153                 npr->Retry = 1;
2154                 npr->TaskRetryIdReq = 1;
2155         }
2156
2157         npr->acceptRspCode = PRLI_REQ_EXECUTED;
2158         npr->estabImagePair = 1;
2159         npr->readXferRdyDis = 1;
2160         npr->ConfmComplAllowed = 1;
2161
2162         npr->prliType = PRLI_FCP_TYPE;
2163         npr->initiatorFunc = 1;
2164
2165         phba->fc_stat.elsXmitACC++;
2166         elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2167
2168         spin_lock_irq(phba->host->host_lock);
2169         rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2170         spin_unlock_irq(phba->host->host_lock);
2171         if (rc == IOCB_ERROR) {
2172                 lpfc_els_free_iocb(phba, elsiocb);
2173                 return 1;
2174         }
2175         return 0;
2176 }
2177
2178 static int
2179 lpfc_els_rsp_rnid_acc(struct lpfc_hba * phba,
2180                       uint8_t format,
2181                       struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2182 {
2183         RNID *rn;
2184         IOCB_t *icmd;
2185         IOCB_t *oldcmd;
2186         struct lpfc_iocbq *elsiocb;
2187         struct lpfc_sli_ring *pring;
2188         struct lpfc_sli *psli;
2189         uint8_t *pcmd;
2190         uint16_t cmdsize;
2191         int rc;
2192
2193         psli = &phba->sli;
2194         pring = &psli->ring[LPFC_ELS_RING];
2195
2196         cmdsize = sizeof (uint32_t) + sizeof (uint32_t)
2197                 + (2 * sizeof (struct lpfc_name));
2198         if (format)
2199                 cmdsize += sizeof (RNID_TOP_DISC);
2200
2201         elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2202                                         ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2203         if (!elsiocb)
2204                 return 1;
2205
2206         /* Xmit RNID ACC response tag <ulpIoTag> */
2207         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2208                         "%d:0132 Xmit RNID ACC response tag x%x "
2209                         "Data: x%x\n",
2210                         phba->brd_no,
2211                         elsiocb->iocb.ulpIoTag,
2212                         elsiocb->iocb.ulpContext);
2213
2214         icmd = &elsiocb->iocb;
2215         oldcmd = &oldiocb->iocb;
2216         icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
2217         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2218
2219         *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2220         pcmd += sizeof (uint32_t);
2221
2222         memset(pcmd, 0, sizeof (RNID));
2223         rn = (RNID *) (pcmd);
2224         rn->Format = format;
2225         rn->CommonLen = (2 * sizeof (struct lpfc_name));
2226         memcpy(&rn->portName, &phba->fc_portname, sizeof (struct lpfc_name));
2227         memcpy(&rn->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
2228         switch (format) {
2229         case 0:
2230                 rn->SpecificLen = 0;
2231                 break;
2232         case RNID_TOPOLOGY_DISC:
2233                 rn->SpecificLen = sizeof (RNID_TOP_DISC);
2234                 memcpy(&rn->un.topologyDisc.portName,
2235                        &phba->fc_portname, sizeof (struct lpfc_name));
2236                 rn->un.topologyDisc.unitType = RNID_HBA;
2237                 rn->un.topologyDisc.physPort = 0;
2238                 rn->un.topologyDisc.attachedNodes = 0;
2239                 break;
2240         default:
2241                 rn->CommonLen = 0;
2242                 rn->SpecificLen = 0;
2243                 break;
2244         }
2245
2246         phba->fc_stat.elsXmitACC++;
2247         elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2248         elsiocb->context1 = NULL;  /* Don't need ndlp for cmpl,
2249                                     * it could be freed */
2250
2251         spin_lock_irq(phba->host->host_lock);
2252         rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2253         spin_unlock_irq(phba->host->host_lock);
2254         if (rc == IOCB_ERROR) {
2255                 lpfc_els_free_iocb(phba, elsiocb);
2256                 return 1;
2257         }
2258         return 0;
2259 }
2260
2261 int
2262 lpfc_els_disc_adisc(struct lpfc_hba * phba)
2263 {
2264         int sentadisc;
2265         struct lpfc_nodelist *ndlp, *next_ndlp;
2266
2267         sentadisc = 0;
2268         /* go thru NPR list and issue any remaining ELS ADISCs */
2269         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2270                         nlp_listp) {
2271                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2272                         if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2273                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2274                                 ndlp->nlp_prev_state = ndlp->nlp_state;
2275                                 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
2276                                 lpfc_nlp_list(phba, ndlp,
2277                                         NLP_ADISC_LIST);
2278                                 lpfc_issue_els_adisc(phba, ndlp, 0);
2279                                 sentadisc++;
2280                                 phba->num_disc_nodes++;
2281                                 if (phba->num_disc_nodes >=
2282                                     phba->cfg_discovery_threads) {
2283                                         spin_lock_irq(phba->host->host_lock);
2284                                         phba->fc_flag |= FC_NLP_MORE;
2285                                         spin_unlock_irq(phba->host->host_lock);
2286                                         break;
2287                                 }
2288                         }
2289                 }
2290         }
2291         if (sentadisc == 0) {
2292                 spin_lock_irq(phba->host->host_lock);
2293                 phba->fc_flag &= ~FC_NLP_MORE;
2294                 spin_unlock_irq(phba->host->host_lock);
2295         }
2296         return sentadisc;
2297 }
2298
2299 int
2300 lpfc_els_disc_plogi(struct lpfc_hba * phba)
2301 {
2302         int sentplogi;
2303         struct lpfc_nodelist *ndlp, *next_ndlp;
2304
2305         sentplogi = 0;
2306         /* go thru NPR list and issue any remaining ELS PLOGIs */
2307         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2308                                 nlp_listp) {
2309                 if ((ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
2310                    (!(ndlp->nlp_flag & NLP_DELAY_TMO))) {
2311                         if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2312                                 ndlp->nlp_prev_state = ndlp->nlp_state;
2313                                 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
2314                                 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
2315                                 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
2316                                 sentplogi++;
2317                                 phba->num_disc_nodes++;
2318                                 if (phba->num_disc_nodes >=
2319                                     phba->cfg_discovery_threads) {
2320                                         spin_lock_irq(phba->host->host_lock);
2321                                         phba->fc_flag |= FC_NLP_MORE;
2322                                         spin_unlock_irq(phba->host->host_lock);
2323                                         break;
2324                                 }
2325                         }
2326                 }
2327         }
2328         if (sentplogi == 0) {
2329                 spin_lock_irq(phba->host->host_lock);
2330                 phba->fc_flag &= ~FC_NLP_MORE;
2331                 spin_unlock_irq(phba->host->host_lock);
2332         }
2333         return sentplogi;
2334 }
2335
2336 int
2337 lpfc_els_flush_rscn(struct lpfc_hba * phba)
2338 {
2339         struct lpfc_dmabuf *mp;
2340         int i;
2341
2342         for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
2343                 mp = phba->fc_rscn_id_list[i];
2344                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2345                 kfree(mp);
2346                 phba->fc_rscn_id_list[i] = NULL;
2347         }
2348         phba->fc_rscn_id_cnt = 0;
2349         spin_lock_irq(phba->host->host_lock);
2350         phba->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
2351         spin_unlock_irq(phba->host->host_lock);
2352         lpfc_can_disctmo(phba);
2353         return 0;
2354 }
2355
2356 int
2357 lpfc_rscn_payload_check(struct lpfc_hba * phba, uint32_t did)
2358 {
2359         D_ID ns_did;
2360         D_ID rscn_did;
2361         struct lpfc_dmabuf *mp;
2362         uint32_t *lp;
2363         uint32_t payload_len, cmd, i, match;
2364
2365         ns_did.un.word = did;
2366         match = 0;
2367
2368         /* Never match fabric nodes for RSCNs */
2369         if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
2370                 return(0);
2371
2372         /* If we are doing a FULL RSCN rediscovery, match everything */
2373         if (phba->fc_flag & FC_RSCN_DISCOVERY) {
2374                 return did;
2375         }
2376
2377         for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
2378                 mp = phba->fc_rscn_id_list[i];
2379                 lp = (uint32_t *) mp->virt;
2380                 cmd = *lp++;
2381                 payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
2382                 payload_len -= sizeof (uint32_t);       /* take off word 0 */
2383                 while (payload_len) {
2384                         rscn_did.un.word = *lp++;
2385                         rscn_did.un.word = be32_to_cpu(rscn_did.un.word);
2386                         payload_len -= sizeof (uint32_t);
2387                         switch (rscn_did.un.b.resv) {
2388                         case 0: /* Single N_Port ID effected */
2389                                 if (ns_did.un.word == rscn_did.un.word) {
2390                                         match = did;
2391                                 }
2392                                 break;
2393                         case 1: /* Whole N_Port Area effected */
2394                                 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
2395                                     && (ns_did.un.b.area == rscn_did.un.b.area))
2396                                         {
2397                                                 match = did;
2398                                         }
2399                                 break;
2400                         case 2: /* Whole N_Port Domain effected */
2401                                 if (ns_did.un.b.domain == rscn_did.un.b.domain)
2402                                         {
2403                                                 match = did;
2404                                         }
2405                                 break;
2406                         case 3: /* Whole Fabric effected */
2407                                 match = did;
2408                                 break;
2409                         default:
2410                                 /* Unknown Identifier in RSCN list */
2411                                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2412                                                 "%d:0217 Unknown Identifier in "
2413                                                 "RSCN payload Data: x%x\n",
2414                                                 phba->brd_no, rscn_did.un.word);
2415                                 break;
2416                         }
2417                         if (match) {
2418                                 break;
2419                         }
2420                 }
2421         }
2422         return match;
2423 }
2424
2425 static int
2426 lpfc_rscn_recovery_check(struct lpfc_hba * phba)
2427 {
2428         struct lpfc_nodelist *ndlp = NULL, *next_ndlp;
2429         struct list_head *listp;
2430         struct list_head *node_list[7];
2431         int i;
2432
2433         /* Look at all nodes effected by pending RSCNs and move
2434          * them to NPR list.
2435          */
2436         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
2437         node_list[1] = &phba->fc_nlpmap_list;
2438         node_list[2] = &phba->fc_nlpunmap_list;
2439         node_list[3] = &phba->fc_prli_list;
2440         node_list[4] = &phba->fc_reglogin_list;
2441         node_list[5] = &phba->fc_adisc_list;
2442         node_list[6] = &phba->fc_plogi_list;
2443         for (i = 0; i < 7; i++) {
2444                 listp = node_list[i];
2445                 if (list_empty(listp))
2446                         continue;
2447
2448                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
2449                         if (!(lpfc_rscn_payload_check(phba, ndlp->nlp_DID)))
2450                                 continue;
2451
2452                         lpfc_disc_state_machine(phba, ndlp, NULL,
2453                                         NLP_EVT_DEVICE_RECOVERY);
2454
2455                         /* Make sure NLP_DELAY_TMO is NOT running
2456                          * after a device recovery event.
2457                          */
2458                         if (ndlp->nlp_flag & NLP_DELAY_TMO)
2459                                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
2460                 }
2461         }
2462         return 0;
2463 }
2464
2465 static int
2466 lpfc_els_rcv_rscn(struct lpfc_hba * phba,
2467                   struct lpfc_iocbq * cmdiocb,
2468                   struct lpfc_nodelist * ndlp, uint8_t newnode)
2469 {
2470         struct lpfc_dmabuf *pcmd;
2471         uint32_t *lp;
2472         IOCB_t *icmd;
2473         uint32_t payload_len, cmd;
2474
2475         icmd = &cmdiocb->iocb;
2476         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2477         lp = (uint32_t *) pcmd->virt;
2478
2479         cmd = *lp++;
2480         payload_len = be32_to_cpu(cmd) & 0xffff;        /* payload length */
2481         payload_len -= sizeof (uint32_t);       /* take off word 0 */
2482         cmd &= ELS_CMD_MASK;
2483
2484         /* RSCN received */
2485         lpfc_printf_log(phba,
2486                         KERN_INFO,
2487                         LOG_DISCOVERY,
2488                         "%d:0214 RSCN received Data: x%x x%x x%x x%x\n",
2489                         phba->brd_no,
2490                         phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt);
2491
2492         /* If we are about to begin discovery, just ACC the RSCN.
2493          * Discovery processing will satisfy it.
2494          */
2495         if (phba->hba_state < LPFC_NS_QRY) {
2496                 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2497                                                                 newnode);
2498                 return 0;
2499         }
2500
2501         /* If we are already processing an RSCN, save the received
2502          * RSCN payload buffer, cmdiocb->context2 to process later.
2503          */
2504         if (phba->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
2505                 if ((phba->fc_rscn_id_cnt < FC_MAX_HOLD_RSCN) &&
2506                     !(phba->fc_flag & FC_RSCN_DISCOVERY)) {
2507                         spin_lock_irq(phba->host->host_lock);
2508                         phba->fc_flag |= FC_RSCN_MODE;
2509                         spin_unlock_irq(phba->host->host_lock);
2510                         phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
2511
2512                         /* If we zero, cmdiocb->context2, the calling
2513                          * routine will not try to free it.
2514                          */
2515                         cmdiocb->context2 = NULL;
2516
2517                         /* Deferred RSCN */
2518                         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2519                                         "%d:0235 Deferred RSCN "
2520                                         "Data: x%x x%x x%x\n",
2521                                         phba->brd_no, phba->fc_rscn_id_cnt,
2522                                         phba->fc_flag, phba->hba_state);
2523                 } else {
2524                         spin_lock_irq(phba->host->host_lock);
2525                         phba->fc_flag |= FC_RSCN_DISCOVERY;
2526                         spin_unlock_irq(phba->host->host_lock);
2527                         /* ReDiscovery RSCN */
2528                         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2529                                         "%d:0234 ReDiscovery RSCN "
2530                                         "Data: x%x x%x x%x\n",
2531                                         phba->brd_no, phba->fc_rscn_id_cnt,
2532                                         phba->fc_flag, phba->hba_state);
2533                 }
2534                 /* Send back ACC */
2535                 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2536                                                                 newnode);
2537
2538                 /* send RECOVERY event for ALL nodes that match RSCN payload */
2539                 lpfc_rscn_recovery_check(phba);
2540                 return 0;
2541         }
2542
2543         phba->fc_flag |= FC_RSCN_MODE;
2544         phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
2545         /*
2546          * If we zero, cmdiocb->context2, the calling routine will
2547          * not try to free it.
2548          */
2549         cmdiocb->context2 = NULL;
2550
2551         lpfc_set_disctmo(phba);
2552
2553         /* Send back ACC */
2554         lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode);
2555
2556         /* send RECOVERY event for ALL nodes that match RSCN payload */
2557         lpfc_rscn_recovery_check(phba);
2558
2559         return lpfc_els_handle_rscn(phba);
2560 }
2561
2562 int
2563 lpfc_els_handle_rscn(struct lpfc_hba * phba)
2564 {
2565         struct lpfc_nodelist *ndlp;
2566
2567         /* Start timer for RSCN processing */
2568         lpfc_set_disctmo(phba);
2569
2570         /* RSCN processed */
2571         lpfc_printf_log(phba,
2572                         KERN_INFO,
2573                         LOG_DISCOVERY,
2574                         "%d:0215 RSCN processed Data: x%x x%x x%x x%x\n",
2575                         phba->brd_no,
2576                         phba->fc_flag, 0, phba->fc_rscn_id_cnt,
2577                         phba->hba_state);
2578
2579         /* To process RSCN, first compare RSCN data with NameServer */
2580         phba->fc_ns_retry = 0;
2581         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, NameServer_DID);
2582         if (ndlp) {
2583                 /* Good ndlp, issue CT Request to NameServer */
2584                 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT) == 0) {
2585                         /* Wait for NameServer query cmpl before we can
2586                            continue */
2587                         return 1;
2588                 }
2589         } else {
2590                 /* If login to NameServer does not exist, issue one */
2591                 /* Good status, issue PLOGI to NameServer */
2592                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2593                 if (ndlp) {
2594                         /* Wait for NameServer login cmpl before we can
2595                            continue */
2596                         return 1;
2597                 }
2598                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2599                 if (!ndlp) {
2600                         lpfc_els_flush_rscn(phba);
2601                         return 0;
2602                 } else {
2603                         lpfc_nlp_init(phba, ndlp, NameServer_DID);
2604                         ndlp->nlp_type |= NLP_FABRIC;
2605                         ndlp->nlp_prev_state = ndlp->nlp_state;
2606                         ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
2607                         lpfc_issue_els_plogi(phba, NameServer_DID, 0);
2608                         /* Wait for NameServer login cmpl before we can
2609                            continue */
2610                         return 1;
2611                 }
2612         }
2613
2614         lpfc_els_flush_rscn(phba);
2615         return 0;
2616 }
2617
2618 static int
2619 lpfc_els_rcv_flogi(struct lpfc_hba * phba,
2620                    struct lpfc_iocbq * cmdiocb,
2621                    struct lpfc_nodelist * ndlp, uint8_t newnode)
2622 {
2623         struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2624         uint32_t *lp = (uint32_t *) pcmd->virt;
2625         IOCB_t *icmd = &cmdiocb->iocb;
2626         struct serv_parm *sp;
2627         LPFC_MBOXQ_t *mbox;
2628         struct ls_rjt stat;
2629         uint32_t cmd, did;
2630         int rc;
2631
2632         cmd = *lp++;
2633         sp = (struct serv_parm *) lp;
2634
2635         /* FLOGI received */
2636
2637         lpfc_set_disctmo(phba);
2638
2639         if (phba->fc_topology == TOPOLOGY_LOOP) {
2640                 /* We should never receive a FLOGI in loop mode, ignore it */
2641                 did = icmd->un.elsreq64.remoteID;
2642
2643                 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
2644                    Loop Mode */
2645                 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
2646                                 "%d:0113 An FLOGI ELS command x%x was received "
2647                                 "from DID x%x in Loop Mode\n",
2648                                 phba->brd_no, cmd, did);
2649                 return 1;
2650         }
2651
2652         did = Fabric_DID;
2653
2654         if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3))) {
2655                 /* For a FLOGI we accept, then if our portname is greater
2656                  * then the remote portname we initiate Nport login.
2657                  */
2658
2659                 rc = memcmp(&phba->fc_portname, &sp->portName,
2660                             sizeof (struct lpfc_name));
2661
2662                 if (!rc) {
2663                         if ((mbox = mempool_alloc(phba->mbox_mem_pool,
2664                                                   GFP_KERNEL)) == 0) {
2665                                 return 1;
2666                         }
2667                         lpfc_linkdown(phba);
2668                         lpfc_init_link(phba, mbox,
2669                                        phba->cfg_topology,
2670                                        phba->cfg_link_speed);
2671                         mbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2672                         mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2673                         rc = lpfc_sli_issue_mbox
2674                                 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
2675                         if (rc == MBX_NOT_FINISHED) {
2676                                 mempool_free( mbox, phba->mbox_mem_pool);
2677                         }
2678                         return 1;
2679                 } else if (rc > 0) {    /* greater than */
2680                         spin_lock_irq(phba->host->host_lock);
2681                         phba->fc_flag |= FC_PT2PT_PLOGI;
2682                         spin_unlock_irq(phba->host->host_lock);
2683                 }
2684                 phba->fc_flag |= FC_PT2PT;
2685                 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2686         } else {
2687                 /* Reject this request because invalid parameters */
2688                 stat.un.b.lsRjtRsvd0 = 0;
2689                 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2690                 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
2691                 stat.un.b.vendorUnique = 0;
2692                 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2693                 return 1;
2694         }
2695
2696         /* Send back ACC */
2697         lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode);
2698
2699         return 0;
2700 }
2701
2702 static int
2703 lpfc_els_rcv_rnid(struct lpfc_hba * phba,
2704                   struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
2705 {
2706         struct lpfc_dmabuf *pcmd;
2707         uint32_t *lp;
2708         IOCB_t *icmd;
2709         RNID *rn;
2710         struct ls_rjt stat;
2711         uint32_t cmd, did;
2712
2713         icmd = &cmdiocb->iocb;
2714         did = icmd->un.elsreq64.remoteID;
2715         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2716         lp = (uint32_t *) pcmd->virt;
2717
2718         cmd = *lp++;
2719         rn = (RNID *) lp;
2720
2721         /* RNID received */
2722
2723         switch (rn->Format) {
2724         case 0:
2725         case RNID_TOPOLOGY_DISC:
2726                 /* Send back ACC */
2727                 lpfc_els_rsp_rnid_acc(phba, rn->Format, cmdiocb, ndlp);
2728                 break;
2729         default:
2730                 /* Reject this request because format not supported */
2731                 stat.un.b.lsRjtRsvd0 = 0;
2732                 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2733                 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2734                 stat.un.b.vendorUnique = 0;
2735                 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2736         }
2737         return 0;
2738 }
2739
2740 static int
2741 lpfc_els_rcv_lirr(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2742                  struct lpfc_nodelist * ndlp)
2743 {
2744         struct ls_rjt stat;
2745
2746         /* For now, unconditionally reject this command */
2747         stat.un.b.lsRjtRsvd0 = 0;
2748         stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2749         stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2750         stat.un.b.vendorUnique = 0;
2751         lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2752         return 0;
2753 }
2754
2755 static void
2756 lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2757 {
2758         struct lpfc_sli *psli;
2759         struct lpfc_sli_ring *pring;
2760         MAILBOX_t *mb;
2761         IOCB_t *icmd;
2762         RPS_RSP *rps_rsp;
2763         uint8_t *pcmd;
2764         struct lpfc_iocbq *elsiocb;
2765         struct lpfc_nodelist *ndlp;
2766         uint16_t xri, status;
2767         uint32_t cmdsize;
2768
2769         psli = &phba->sli;
2770         pring = &psli->ring[LPFC_ELS_RING];
2771         mb = &pmb->mb;
2772
2773         ndlp = (struct lpfc_nodelist *) pmb->context2;
2774         xri = (uint16_t) ((unsigned long)(pmb->context1));
2775         pmb->context1 = 0;
2776         pmb->context2 = 0;
2777
2778         if (mb->mbxStatus) {
2779                 mempool_free( pmb, phba->mbox_mem_pool);
2780                 return;
2781         }
2782
2783         cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
2784         mempool_free( pmb, phba->mbox_mem_pool);
2785         elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, lpfc_max_els_tries, ndlp,
2786                                                 ndlp->nlp_DID, ELS_CMD_ACC);
2787         if (!elsiocb)
2788                 return;
2789
2790         icmd = &elsiocb->iocb;
2791         icmd->ulpContext = xri;
2792
2793         pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2794         *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2795         pcmd += sizeof (uint32_t); /* Skip past command */
2796         rps_rsp = (RPS_RSP *)pcmd;
2797
2798         if (phba->fc_topology != TOPOLOGY_LOOP)
2799                 status = 0x10;
2800         else
2801                 status = 0x8;
2802         if (phba->fc_flag & FC_FABRIC)
2803                 status |= 0x4;
2804
2805         rps_rsp->rsvd1 = 0;
2806         rps_rsp->portStatus = be16_to_cpu(status);
2807         rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt);
2808         rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt);
2809         rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt);
2810         rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt);
2811         rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord);
2812         rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt);
2813
2814         /* Xmit ELS RPS ACC response tag <ulpIoTag> */
2815         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2816                         "%d:0128 Xmit ELS RPS ACC response tag x%x "
2817                         "Data: x%x x%x x%x x%x x%x\n",
2818                         phba->brd_no,
2819                         elsiocb->iocb.ulpIoTag,
2820                         elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2821                         ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2822
2823         elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2824         phba->fc_stat.elsXmitACC++;
2825         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
2826                 lpfc_els_free_iocb(phba, elsiocb);
2827         }
2828         return;
2829 }
2830
2831 static int
2832 lpfc_els_rcv_rps(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2833                  struct lpfc_nodelist * ndlp)
2834 {
2835         uint32_t *lp;
2836         uint8_t flag;
2837         LPFC_MBOXQ_t *mbox;
2838         struct lpfc_dmabuf *pcmd;
2839         RPS *rps;
2840         struct ls_rjt stat;
2841
2842         if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2843             (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
2844                 stat.un.b.lsRjtRsvd0 = 0;
2845                 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2846                 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2847                 stat.un.b.vendorUnique = 0;
2848                 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2849         }
2850
2851         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2852         lp = (uint32_t *) pcmd->virt;
2853         flag = (be32_to_cpu(*lp++) & 0xf);
2854         rps = (RPS *) lp;
2855
2856         if ((flag == 0) ||
2857             ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
2858             ((flag == 2) && (memcmp(&rps->un.portName, &phba->fc_portname,
2859                            sizeof (struct lpfc_name)) == 0))) {
2860                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC))) {
2861                         lpfc_read_lnk_stat(phba, mbox);
2862                         mbox->context1 =
2863                             (void *)((unsigned long)cmdiocb->iocb.ulpContext);
2864                         mbox->context2 = ndlp;
2865                         mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
2866                         if (lpfc_sli_issue_mbox (phba, mbox,
2867                             (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) {
2868                                 /* Mbox completion will send ELS Response */
2869                                 return 0;
2870                         }
2871                         mempool_free(mbox, phba->mbox_mem_pool);
2872                 }
2873         }
2874         stat.un.b.lsRjtRsvd0 = 0;
2875         stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2876         stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2877         stat.un.b.vendorUnique = 0;
2878         lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2879         return 0;
2880 }
2881
2882 static int
2883 lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
2884                  struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2885 {
2886         IOCB_t *icmd;
2887         IOCB_t *oldcmd;
2888         RPL_RSP rpl_rsp;
2889         struct lpfc_iocbq *elsiocb;
2890         struct lpfc_sli_ring *pring;
2891         struct lpfc_sli *psli;
2892         uint8_t *pcmd;
2893
2894         psli = &phba->sli;
2895         pring = &psli->ring[LPFC_ELS_RING];     /* ELS ring */
2896
2897         elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2898                                         ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
2899         if (!elsiocb)
2900                 return 1;
2901
2902         icmd = &elsiocb->iocb;
2903         oldcmd = &oldiocb->iocb;
2904         icmd->ulpContext = oldcmd->ulpContext;  /* Xri */
2905
2906         pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2907         *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2908         pcmd += sizeof (uint16_t);
2909         *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
2910         pcmd += sizeof(uint16_t);
2911
2912         /* Setup the RPL ACC payload */
2913         rpl_rsp.listLen = be32_to_cpu(1);
2914         rpl_rsp.index = 0;
2915         rpl_rsp.port_num_blk.portNum = 0;
2916         rpl_rsp.port_num_blk.portID = be32_to_cpu(phba->fc_myDID);
2917         memcpy(&rpl_rsp.port_num_blk.portName, &phba->fc_portname,
2918             sizeof(struct lpfc_name));
2919
2920         memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
2921
2922
2923         /* Xmit ELS RPL ACC response tag <ulpIoTag> */
2924         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2925                         "%d:0128 Xmit ELS RPL ACC response tag x%x "
2926                         "Data: x%x x%x x%x x%x x%x\n",
2927                         phba->brd_no,
2928                         elsiocb->iocb.ulpIoTag,
2929                         elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2930                         ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2931
2932         elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2933
2934         phba->fc_stat.elsXmitACC++;
2935         if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
2936                 lpfc_els_free_iocb(phba, elsiocb);
2937                 return 1;
2938         }
2939         return 0;
2940 }
2941
2942 static int
2943 lpfc_els_rcv_rpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2944                  struct lpfc_nodelist * ndlp)
2945 {
2946         struct lpfc_dmabuf *pcmd;
2947         uint32_t *lp;
2948         uint32_t maxsize;
2949         uint16_t cmdsize;
2950         RPL *rpl;
2951         struct ls_rjt stat;
2952
2953         if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2954             (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
2955                 stat.un.b.lsRjtRsvd0 = 0;
2956                 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2957                 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2958                 stat.un.b.vendorUnique = 0;
2959                 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2960         }
2961
2962         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2963         lp = (uint32_t *) pcmd->virt;
2964         rpl = (RPL *) (lp + 1);
2965
2966         maxsize = be32_to_cpu(rpl->maxsize);
2967
2968         /* We support only one port */
2969         if ((rpl->index == 0) &&
2970             ((maxsize == 0) ||
2971              ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
2972                 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
2973         } else {
2974                 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
2975         }
2976         lpfc_els_rsp_rpl_acc(phba, cmdsize, cmdiocb, ndlp);
2977
2978         return 0;
2979 }
2980
2981 static int
2982 lpfc_els_rcv_farp(struct lpfc_hba * phba,
2983                   struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
2984 {
2985         struct lpfc_dmabuf *pcmd;
2986         uint32_t *lp;
2987         IOCB_t *icmd;
2988         FARP *fp;
2989         uint32_t cmd, cnt, did;
2990
2991         icmd = &cmdiocb->iocb;
2992         did = icmd->un.elsreq64.remoteID;
2993         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2994         lp = (uint32_t *) pcmd->virt;
2995
2996         cmd = *lp++;
2997         fp = (FARP *) lp;
2998
2999         /* FARP-REQ received from DID <did> */
3000         lpfc_printf_log(phba,
3001                          KERN_INFO,
3002                          LOG_IP,
3003                          "%d:0601 FARP-REQ received from DID x%x\n",
3004                          phba->brd_no, did);
3005
3006         /* We will only support match on WWPN or WWNN */
3007         if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
3008                 return 0;
3009         }
3010
3011         cnt = 0;
3012         /* If this FARP command is searching for my portname */
3013         if (fp->Mflags & FARP_MATCH_PORT) {
3014                 if (memcmp(&fp->RportName, &phba->fc_portname,
3015                            sizeof (struct lpfc_name)) == 0)
3016                         cnt = 1;
3017         }
3018
3019         /* If this FARP command is searching for my nodename */
3020         if (fp->Mflags & FARP_MATCH_NODE) {
3021                 if (memcmp(&fp->RnodeName, &phba->fc_nodename,
3022                            sizeof (struct lpfc_name)) == 0)
3023                         cnt = 1;
3024         }
3025
3026         if (cnt) {
3027                 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
3028                    (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
3029                         /* Log back into the node before sending the FARP. */
3030                         if (fp->Rflags & FARP_REQUEST_PLOGI) {
3031                                 ndlp->nlp_prev_state = ndlp->nlp_state;
3032                                 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
3033                                 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
3034                                 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
3035                         }
3036
3037                         /* Send a FARP response to that node */
3038                         if (fp->Rflags & FARP_REQUEST_FARPR) {
3039                                 lpfc_issue_els_farpr(phba, did, 0);
3040                         }
3041                 }
3042         }
3043         return 0;
3044 }
3045
3046 static int
3047 lpfc_els_rcv_farpr(struct lpfc_hba * phba,
3048                    struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
3049 {
3050         struct lpfc_dmabuf *pcmd;
3051         uint32_t *lp;
3052         IOCB_t *icmd;
3053         uint32_t cmd, did;
3054
3055         icmd = &cmdiocb->iocb;
3056         did = icmd->un.elsreq64.remoteID;
3057         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3058         lp = (uint32_t *) pcmd->virt;
3059
3060         cmd = *lp++;
3061         /* FARP-RSP received from DID <did> */
3062         lpfc_printf_log(phba,
3063                          KERN_INFO,
3064                          LOG_IP,
3065                          "%d:0600 FARP-RSP received from DID x%x\n",
3066                          phba->brd_no, did);
3067
3068         /* ACCEPT the Farp resp request */
3069         lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
3070
3071         return 0;
3072 }
3073
3074 static int
3075 lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
3076                  struct lpfc_nodelist * fan_ndlp)
3077 {
3078         struct lpfc_dmabuf *pcmd;
3079         uint32_t *lp;
3080         IOCB_t *icmd;
3081         uint32_t cmd, did;
3082         FAN *fp;
3083         struct lpfc_nodelist *ndlp, *next_ndlp;
3084
3085         /* FAN received */
3086         lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:265 FAN received\n",
3087                                                                 phba->brd_no);
3088
3089         icmd = &cmdiocb->iocb;
3090         did = icmd->un.elsreq64.remoteID;
3091         pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
3092         lp = (uint32_t *)pcmd->virt;
3093
3094         cmd = *lp++;
3095         fp = (FAN *)lp;
3096
3097         /* FAN received; Fan does not have a reply sequence */
3098
3099         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
3100                 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
3101                         sizeof(struct lpfc_name)) != 0) ||
3102                     (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
3103                         sizeof(struct lpfc_name)) != 0)) {
3104                         /*
3105                          * This node has switched fabrics.  FLOGI is required
3106                          * Clean up the old rpi's
3107                          */
3108
3109                         list_for_each_entry_safe(ndlp, next_ndlp,
3110                                 &phba->fc_npr_list, nlp_listp) {
3111
3112                                 if (ndlp->nlp_type & NLP_FABRIC) {
3113                                         /*
3114                                          * Clean up old Fabric, Nameserver and
3115                                          * other NLP_FABRIC logins
3116                                          */
3117                                         lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
3118                                 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
3119                                         /* Fail outstanding I/O now since this
3120                                          * device is marked for PLOGI
3121                                          */
3122                                         lpfc_unreg_rpi(phba, ndlp);
3123                                 }
3124                         }
3125
3126                         phba->hba_state = LPFC_FLOGI;
3127                         lpfc_set_disctmo(phba);
3128                         lpfc_initial_flogi(phba);
3129                         return 0;
3130                 }
3131                 /* Discovery not needed,
3132                  * move the nodes to their original state.
3133                  */
3134                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
3135                         nlp_listp) {
3136
3137                         switch (ndlp->nlp_prev_state) {
3138                         case NLP_STE_UNMAPPED_NODE:
3139                                 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
3140                                 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
3141                                 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
3142                                 break;
3143
3144                         case NLP_STE_MAPPED_NODE:
3145                                 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
3146                                 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
3147                                 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
3148                                 break;
3149
3150                         default:
3151                                 break;
3152                         }
3153                 }
3154
3155                 /* Start discovery - this should just do CLEAR_LA */
3156                 lpfc_disc_start(phba);
3157         }
3158         return 0;
3159 }
3160
3161 void
3162 lpfc_els_timeout(unsigned long ptr)
3163 {
3164         struct lpfc_hba *phba;
3165         unsigned long iflag;
3166
3167         phba = (struct lpfc_hba *)ptr;
3168         if (phba == 0)
3169                 return;
3170         spin_lock_irqsave(phba->host->host_lock, iflag);
3171         if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
3172                 phba->work_hba_events |= WORKER_ELS_TMO;
3173                 if (phba->work_wait)
3174                         wake_up(phba->work_wait);
3175         }
3176         spin_unlock_irqrestore(phba->host->host_lock, iflag);
3177         return;
3178 }
3179
3180 void
3181 lpfc_els_timeout_handler(struct lpfc_hba *phba)
3182 {
3183         struct lpfc_sli_ring *pring;
3184         struct lpfc_iocbq *tmp_iocb, *piocb;
3185         IOCB_t *cmd = NULL;
3186         struct lpfc_dmabuf *pcmd;
3187         struct list_head *dlp;
3188         uint32_t *elscmd;
3189         uint32_t els_command;
3190         uint32_t timeout;
3191         uint32_t remote_ID;
3192
3193         if (phba == 0)
3194                 return;
3195         spin_lock_irq(phba->host->host_lock);
3196         /* If the timer is already canceled do nothing */
3197         if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
3198                 spin_unlock_irq(phba->host->host_lock);
3199                 return;
3200         }
3201         timeout = (uint32_t)(phba->fc_ratov << 1);
3202
3203         pring = &phba->sli.ring[LPFC_ELS_RING];
3204         dlp = &pring->txcmplq;
3205
3206         list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3207                 cmd = &piocb->iocb;
3208
3209                 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3210                         continue;
3211                 }
3212                 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3213                 elscmd = (uint32_t *) (pcmd->virt);
3214                 els_command = *elscmd;
3215
3216                 if ((els_command == ELS_CMD_FARP)
3217                     || (els_command == ELS_CMD_FARPR)) {
3218                         continue;
3219                 }
3220
3221                 if (piocb->drvrTimeout > 0) {
3222                         if (piocb->drvrTimeout >= timeout) {
3223                                 piocb->drvrTimeout -= timeout;
3224                         } else {
3225                                 piocb->drvrTimeout = 0;
3226                         }
3227                         continue;
3228                 }
3229
3230                 list_del(&piocb->list);
3231                 pring->txcmplq_cnt--;
3232
3233                 if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) {
3234                         struct lpfc_nodelist *ndlp;
3235                         spin_unlock_irq(phba->host->host_lock);
3236                         ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext);
3237                         spin_lock_irq(phba->host->host_lock);
3238                         remote_ID = ndlp->nlp_DID;
3239                         if (cmd->un.elsreq64.bdl.ulpIoTag32) {
3240                                 lpfc_sli_issue_abort_iotag32(phba,
3241                                         pring, piocb);
3242                         }
3243                 } else {
3244                         remote_ID = cmd->un.elsreq64.remoteID;
3245                 }
3246
3247                 lpfc_printf_log(phba,
3248                                 KERN_ERR,
3249                                 LOG_ELS,
3250                                 "%d:0127 ELS timeout Data: x%x x%x x%x x%x\n",
3251                                 phba->brd_no, els_command,
3252                                 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
3253
3254                 /*
3255                  * The iocb has timed out; abort it.
3256                  */
3257                 if (piocb->iocb_cmpl) {
3258                         cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3259                         cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3260                         spin_unlock_irq(phba->host->host_lock);
3261                         (piocb->iocb_cmpl) (phba, piocb, piocb);
3262                         spin_lock_irq(phba->host->host_lock);
3263                 } else
3264                         lpfc_sli_release_iocbq(phba, piocb);
3265         }
3266         if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) {
3267                 phba->els_tmofunc.expires = jiffies + HZ * timeout;
3268                 add_timer(&phba->els_tmofunc);
3269         }
3270         spin_unlock_irq(phba->host->host_lock);
3271 }
3272
3273 void
3274 lpfc_els_flush_cmd(struct lpfc_hba * phba)
3275 {
3276         struct lpfc_sli_ring *pring;
3277         struct lpfc_iocbq *tmp_iocb, *piocb;
3278         IOCB_t *cmd = NULL;
3279         struct lpfc_dmabuf *pcmd;
3280         uint32_t *elscmd;
3281         uint32_t els_command;
3282
3283         pring = &phba->sli.ring[LPFC_ELS_RING];
3284         spin_lock_irq(phba->host->host_lock);
3285         list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
3286                 cmd = &piocb->iocb;
3287
3288                 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3289                         continue;
3290                 }
3291
3292                 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
3293                 if ((cmd->ulpCommand == CMD_QUE_RING_BUF_CN) ||
3294                     (cmd->ulpCommand == CMD_QUE_RING_BUF64_CN) ||
3295                     (cmd->ulpCommand == CMD_CLOSE_XRI_CN) ||
3296                     (cmd->ulpCommand == CMD_ABORT_XRI_CN)) {
3297                         continue;
3298                 }
3299
3300                 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3301                 elscmd = (uint32_t *) (pcmd->virt);
3302                 els_command = *elscmd;
3303
3304                 list_del(&piocb->list);
3305                 pring->txcmplq_cnt--;
3306
3307                 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3308                 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3309
3310                 if (piocb->iocb_cmpl) {
3311                         spin_unlock_irq(phba->host->host_lock);
3312                         (piocb->iocb_cmpl) (phba, piocb, piocb);
3313                         spin_lock_irq(phba->host->host_lock);
3314                 } else
3315                         lpfc_sli_release_iocbq(phba, piocb);
3316         }
3317
3318         list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3319                 cmd = &piocb->iocb;
3320
3321                 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3322                         continue;
3323                 }
3324                 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3325                 elscmd = (uint32_t *) (pcmd->virt);
3326                 els_command = *elscmd;
3327
3328                 list_del(&piocb->list);
3329                 pring->txcmplq_cnt--;
3330
3331                 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3332                 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3333
3334                 if (piocb->iocb_cmpl) {
3335                         spin_unlock_irq(phba->host->host_lock);
3336                         (piocb->iocb_cmpl) (phba, piocb, piocb);
3337                         spin_lock_irq(phba->host->host_lock);
3338                 } else
3339                         lpfc_sli_release_iocbq(phba, piocb);
3340         }
3341         spin_unlock_irq(phba->host->host_lock);
3342         return;
3343 }
3344
3345 void
3346 lpfc_els_unsol_event(struct lpfc_hba * phba,
3347                      struct lpfc_sli_ring * pring, struct lpfc_iocbq * elsiocb)
3348 {
3349         struct lpfc_sli *psli;
3350         struct lpfc_nodelist *ndlp;
3351         struct lpfc_dmabuf *mp;
3352         uint32_t *lp;
3353         IOCB_t *icmd;
3354         struct ls_rjt stat;
3355         uint32_t cmd;
3356         uint32_t did;
3357         uint32_t newnode;
3358         uint32_t drop_cmd = 0;  /* by default do NOT drop received cmd */
3359         uint32_t rjt_err = 0;
3360
3361         psli = &phba->sli;
3362         icmd = &elsiocb->iocb;
3363
3364         if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3365                 ((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) {
3366                 /* Not enough posted buffers; Try posting more buffers */
3367                 phba->fc_stat.NoRcvBuf++;
3368                 lpfc_post_buffer(phba, pring, 0, 1);
3369                 return;
3370         }
3371
3372         /* If there are no BDEs associated with this IOCB,
3373          * there is nothing to do.
3374          */
3375         if (icmd->ulpBdeCount == 0)
3376                 return;
3377
3378         /* type of ELS cmd is first 32bit word in packet */
3379         mp = lpfc_sli_ringpostbuf_get(phba, pring, getPaddr(icmd->un.
3380                                                             cont64[0].
3381                                                             addrHigh,
3382                                                             icmd->un.
3383                                                             cont64[0].addrLow));
3384         if (mp == 0) {
3385                 drop_cmd = 1;
3386                 goto dropit;
3387         }
3388
3389         newnode = 0;
3390         lp = (uint32_t *) mp->virt;
3391         cmd = *lp++;
3392         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], 1, 1);
3393
3394         if (icmd->ulpStatus) {
3395                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3396                 kfree(mp);
3397                 drop_cmd = 1;
3398                 goto dropit;
3399         }
3400
3401         /* Check to see if link went down during discovery */
3402         if (lpfc_els_chk_latt(phba)) {
3403                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3404                 kfree(mp);
3405                 drop_cmd = 1;
3406                 goto dropit;
3407         }
3408
3409         did = icmd->un.rcvels.remoteID;
3410         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
3411         if (!ndlp) {
3412                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3413                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3414                 if (!ndlp) {
3415                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
3416                         kfree(mp);
3417                         drop_cmd = 1;
3418                         goto dropit;
3419                 }
3420
3421                 lpfc_nlp_init(phba, ndlp, did);
3422                 newnode = 1;
3423                 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) {
3424                         ndlp->nlp_type |= NLP_FABRIC;
3425                 }
3426         }
3427
3428         phba->fc_stat.elsRcvFrame++;
3429         elsiocb->context1 = ndlp;
3430         elsiocb->context2 = mp;
3431
3432         if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
3433                 cmd &= ELS_CMD_MASK;
3434         }
3435         /* ELS command <elsCmd> received from NPORT <did> */
3436         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3437                         "%d:0112 ELS command x%x received from NPORT x%x "
3438                         "Data: x%x\n", phba->brd_no, cmd, did, phba->hba_state);
3439
3440         switch (cmd) {
3441         case ELS_CMD_PLOGI:
3442                 phba->fc_stat.elsRcvPLOGI++;
3443                 if (phba->hba_state < LPFC_DISC_AUTH) {
3444                         rjt_err = 1;
3445                         break;
3446                 }
3447                 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PLOGI);
3448                 break;
3449         case ELS_CMD_FLOGI:
3450                 phba->fc_stat.elsRcvFLOGI++;
3451                 lpfc_els_rcv_flogi(phba, elsiocb, ndlp, newnode);
3452                 if (newnode) {
3453                         mempool_free( ndlp, phba->nlp_mem_pool);
3454                 }
3455                 break;
3456         case ELS_CMD_LOGO:
3457                 phba->fc_stat.elsRcvLOGO++;
3458                 if (phba->hba_state < LPFC_DISC_AUTH) {
3459                         rjt_err = 1;
3460                         break;
3461                 }
3462                 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
3463                 break;
3464         case ELS_CMD_PRLO:
3465                 phba->fc_stat.elsRcvPRLO++;
3466                 if (phba->hba_state < LPFC_DISC_AUTH) {
3467                         rjt_err = 1;
3468                         break;
3469                 }
3470                 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
3471                 break;
3472         case ELS_CMD_RSCN:
3473                 phba->fc_stat.elsRcvRSCN++;
3474                 lpfc_els_rcv_rscn(phba, elsiocb, ndlp, newnode);
3475                 if (newnode) {
3476                         mempool_free( ndlp, phba->nlp_mem_pool);
3477                 }
3478                 break;
3479         case ELS_CMD_ADISC:
3480                 phba->fc_stat.elsRcvADISC++;
3481                 if (phba->hba_state < LPFC_DISC_AUTH) {
3482                         rjt_err = 1;
3483                         break;
3484                 }
3485                 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_ADISC);
3486                 break;
3487         case ELS_CMD_PDISC:
3488                 phba->fc_stat.elsRcvPDISC++;
3489                 if (phba->hba_state < LPFC_DISC_AUTH) {
3490                         rjt_err = 1;
3491                         break;
3492                 }
3493                 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PDISC);
3494                 break;
3495         case ELS_CMD_FARPR:
3496                 phba->fc_stat.elsRcvFARPR++;
3497                 lpfc_els_rcv_farpr(phba, elsiocb, ndlp);
3498                 break;
3499         case ELS_CMD_FARP:
3500                 phba->fc_stat.elsRcvFARP++;
3501                 lpfc_els_rcv_farp(phba, elsiocb, ndlp);
3502                 break;
3503         case ELS_CMD_FAN:
3504                 phba->fc_stat.elsRcvFAN++;
3505                 lpfc_els_rcv_fan(phba, elsiocb, ndlp);
3506                 break;
3507         case ELS_CMD_PRLI:
3508                 phba->fc_stat.elsRcvPRLI++;
3509                 if (phba->hba_state < LPFC_DISC_AUTH) {
3510                         rjt_err = 1;
3511                         break;
3512                 }
3513                 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
3514                 break;
3515         case ELS_CMD_LIRR:
3516                 phba->fc_stat.elsRcvLIRR++;
3517                 lpfc_els_rcv_lirr(phba, elsiocb, ndlp);
3518                 if (newnode) {
3519                         mempool_free( ndlp, phba->nlp_mem_pool);
3520                 }
3521                 break;
3522         case ELS_CMD_RPS:
3523                 phba->fc_stat.elsRcvRPS++;
3524                 lpfc_els_rcv_rps(phba, elsiocb, ndlp);
3525                 if (newnode) {
3526                         mempool_free( ndlp, phba->nlp_mem_pool);
3527                 }
3528                 break;
3529         case ELS_CMD_RPL:
3530                 phba->fc_stat.elsRcvRPL++;
3531                 lpfc_els_rcv_rpl(phba, elsiocb, ndlp);
3532                 if (newnode) {
3533                         mempool_free( ndlp, phba->nlp_mem_pool);
3534                 }
3535                 break;
3536         case ELS_CMD_RNID:
3537                 phba->fc_stat.elsRcvRNID++;
3538                 lpfc_els_rcv_rnid(phba, elsiocb, ndlp);
3539                 if (newnode) {
3540                         mempool_free( ndlp, phba->nlp_mem_pool);
3541                 }
3542                 break;
3543         default:
3544                 /* Unsupported ELS command, reject */
3545                 rjt_err = 1;
3546
3547                 /* Unknown ELS command <elsCmd> received from NPORT <did> */
3548                 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3549                                 "%d:0115 Unknown ELS command x%x received from "
3550                                 "NPORT x%x\n", phba->brd_no, cmd, did);
3551                 if (newnode) {
3552                         mempool_free( ndlp, phba->nlp_mem_pool);
3553                 }
3554                 break;
3555         }
3556
3557         /* check if need to LS_RJT received ELS cmd */
3558         if (rjt_err) {
3559                 stat.un.b.lsRjtRsvd0 = 0;
3560                 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3561                 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
3562                 stat.un.b.vendorUnique = 0;
3563                 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, elsiocb, ndlp);
3564         }
3565
3566         if (elsiocb->context2) {
3567                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3568                 kfree(mp);
3569         }
3570 dropit:
3571         /* check if need to drop received ELS cmd */
3572         if (drop_cmd == 1) {
3573                 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3574                                 "%d:0111 Dropping received ELS cmd "
3575                                 "Data: x%x x%x x%x\n", phba->brd_no,
3576                                 icmd->ulpStatus, icmd->un.ulpWord[4],
3577                                 icmd->ulpTimeout);
3578                 phba->fc_stat.elsRcvDrop++;
3579         }
3580         return;
3581 }