SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/lpfc/lpfc_hbadisc.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/kthread.h>
  25 #include <linux/interrupt.h>
  26
  27 #include <scsi/scsi.h>
  28 #include <scsi/scsi_device.h>
  29 #include <scsi/scsi_host.h>
  30 #include <scsi/scsi_transport_fc.h>
  31
  32 #include "lpfc_hw.h"
  33 #include "lpfc_disc.h"
  34 #include "lpfc_sli.h"
  35 #include "lpfc_scsi.h"
  36 #include "lpfc.h"
  37 #include "lpfc_logmsg.h"
  38 #include "lpfc_crtn.h"
  39
  40 /* AlpaArray for assignment of scsid for scan-down and bind_method */
  41 static uint8_t lpfcAlpaArray[] = {
  42         0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
  43         0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
  44         0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
  45         0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
  46         0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
  47         0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
  48         0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
  49         0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
  50         0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
  51         0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
  52         0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
  53         0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
  54         0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
  55 };
  56
  57 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
  58
  59 void
  60 lpfc_terminate_rport_io(struct fc_rport *rport)
  61 {
  62         struct lpfc_rport_data *rdata;
  63         struct lpfc_nodelist * ndlp;
  64         struct lpfc_hba *phba;
  65
  66         rdata = rport->dd_data;
  67         ndlp = rdata->pnode;
  68
  69         if (!ndlp) {
  70                 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
  71                         printk(KERN_ERR "Cannot find remote node"
  72                         " to terminate I/O Data x%x\n",
  73                         rport->port_id);
  74                 return;
  75         }
  76
  77         phba = ndlp->nlp_phba;
  78
  79         spin_lock_irq(phba->host->host_lock);
  80         if (ndlp->nlp_sid != NLP_NO_SID) {
  81                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
  82                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
  83         }
  84         spin_unlock_irq(phba->host->host_lock);
  85
  86         return;
  87 }
  88
  89 /*
  90  * This function will be called when dev_loss_tmo fire.
  91  */
  92 void
  93 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
  94 {
  95         struct lpfc_rport_data *rdata;
  96         struct lpfc_nodelist * ndlp;
  97         uint8_t *name;
  98         int warn_on = 0;
  99         struct lpfc_hba *phba;
 100
 101         rdata = rport->dd_data;
 102         ndlp = rdata->pnode;
 103
 104         if (!ndlp) {
 105                 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
 106                         printk(KERN_ERR "Cannot find remote node"
 107                         " for rport in dev_loss_tmo_callbk x%x\n",
 108                         rport->port_id);
 109                 return;
 110         }
 111
 112         name = (uint8_t *)&ndlp->nlp_portname;
 113         phba = ndlp->nlp_phba;
 114
 115         spin_lock_irq(phba->host->host_lock);
 116
 117         if (ndlp->nlp_sid != NLP_NO_SID) {
 118                 warn_on = 1;
 119                 /* flush the target */
 120                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
 121                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
 122         }
 123         if (phba->fc_flag & FC_UNLOADING)
 124                 warn_on = 0;
 125
 126         spin_unlock_irq(phba->host->host_lock);
 127
 128         if (warn_on) {
 129                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 130                                 "%d:0203 Devloss timeout on "
 131                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 132                                 "NPort x%x Data: x%x x%x x%x\n",
 133                                 phba->brd_no,
 134                                 *name, *(name+1), *(name+2), *(name+3),
 135                                 *(name+4), *(name+5), *(name+6), *(name+7),
 136                                 ndlp->nlp_DID, ndlp->nlp_flag,
 137                                 ndlp->nlp_state, ndlp->nlp_rpi);
 138         } else {
 139                 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 140                                 "%d:0204 Devloss timeout on "
 141                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 142                                 "NPort x%x Data: x%x x%x x%x\n",
 143                                 phba->brd_no,
 144                                 *name, *(name+1), *(name+2), *(name+3),
 145                                 *(name+4), *(name+5), *(name+6), *(name+7),
 146                                 ndlp->nlp_DID, ndlp->nlp_flag,
 147                                 ndlp->nlp_state, ndlp->nlp_rpi);
 148         }
 149
 150         if (!(phba->fc_flag & FC_UNLOADING) &&
 151             !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
 152             !(ndlp->nlp_flag & NLP_NPR_2B_DISC))
 153                 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
 154         else {
 155                 rdata->pnode = NULL;
 156                 ndlp->rport = NULL;
 157         }
 158
 159         return;
 160 }
 161
 162 static void
 163 lpfc_work_list_done(struct lpfc_hba * phba)
 164 {
 165         struct lpfc_work_evt  *evtp = NULL;
 166         struct lpfc_nodelist  *ndlp;
 167         int free_evt;
 168
 169         spin_lock_irq(phba->host->host_lock);
 170         while(!list_empty(&phba->work_list)) {
 171                 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
 172                                  evt_listp);
 173                 spin_unlock_irq(phba->host->host_lock);
 174                 free_evt = 1;
 175                 switch (evtp->evt) {
 176                 case LPFC_EVT_ELS_RETRY:
 177                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 178                         lpfc_els_retry_delay_handler(ndlp);
 179                         free_evt = 0;
 180                         break;
 181                 case LPFC_EVT_ONLINE:
 182                         if (phba->hba_state < LPFC_LINK_DOWN)
 183                                 *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
 184                         else
 185                                 *(int *)(evtp->evt_arg1)  = 0;
 186                         complete((struct completion *)(evtp->evt_arg2));
 187                         break;
 188                 case LPFC_EVT_OFFLINE_PREP:
 189                         if (phba->hba_state >= LPFC_LINK_DOWN)
 190                                 lpfc_offline_prep(phba);
 191                         *(int *)(evtp->evt_arg1) = 0;
 192                         complete((struct completion *)(evtp->evt_arg2));
 193                         break;
 194                 case LPFC_EVT_OFFLINE:
 195                         lpfc_offline(phba);
 196                         lpfc_sli_brdrestart(phba);
 197                         *(int *)(evtp->evt_arg1) =
 198                                 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
 199                         lpfc_unblock_mgmt_io(phba);
 200                         complete((struct completion *)(evtp->evt_arg2));
 201                         break;
 202                 case LPFC_EVT_WARM_START:
 203                         lpfc_offline(phba);
 204                         lpfc_reset_barrier(phba);
 205                         lpfc_sli_brdreset(phba);
 206                         lpfc_hba_down_post(phba);
 207                         *(int *)(evtp->evt_arg1) =
 208                                 lpfc_sli_brdready(phba, HS_MBRDY);
 209                         lpfc_unblock_mgmt_io(phba);
 210                         complete((struct completion *)(evtp->evt_arg2));
 211                         break;
 212                 case LPFC_EVT_KILL:
 213                         lpfc_offline(phba);
 214                         *(int *)(evtp->evt_arg1)
 215                                 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
 216                         lpfc_unblock_mgmt_io(phba);
 217                         complete((struct completion *)(evtp->evt_arg2));
 218                         break;
 219                 }
 220                 if (free_evt)
 221                         kfree(evtp);
 222                 spin_lock_irq(phba->host->host_lock);
 223         }
 224         spin_unlock_irq(phba->host->host_lock);
 225
 226 }
 227
 228 static void
 229 lpfc_work_done(struct lpfc_hba * phba)
 230 {
 231         struct lpfc_sli_ring *pring;
 232         int i;
 233         uint32_t ha_copy;
 234         uint32_t control;
 235         uint32_t work_hba_events;
 236
 237         spin_lock_irq(phba->host->host_lock);
 238         ha_copy = phba->work_ha;
 239         phba->work_ha = 0;
 240         work_hba_events=phba->work_hba_events;
 241         spin_unlock_irq(phba->host->host_lock);
 242
 243         if (ha_copy & HA_ERATT)
 244                 lpfc_handle_eratt(phba);
 245
 246         if (ha_copy & HA_MBATT)
 247                 lpfc_sli_handle_mb_event(phba);
 248
 249         if (ha_copy & HA_LATT)
 250                 lpfc_handle_latt(phba);
 251
 252         if (work_hba_events & WORKER_DISC_TMO)
 253                 lpfc_disc_timeout_handler(phba);
 254
 255         if (work_hba_events & WORKER_ELS_TMO)
 256                 lpfc_els_timeout_handler(phba);
 257
 258         if (work_hba_events & WORKER_MBOX_TMO)
 259                 lpfc_mbox_timeout_handler(phba);
 260
 261         if (work_hba_events & WORKER_FDMI_TMO)
 262                 lpfc_fdmi_tmo_handler(phba);
 263
 264         spin_lock_irq(phba->host->host_lock);
 265         phba->work_hba_events &= ~work_hba_events;
 266         spin_unlock_irq(phba->host->host_lock);
 267
 268         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
 269                 pring = &phba->sli.ring[i];
 270                 if ((ha_copy & HA_RXATT)
 271                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
 272                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
 273                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
 274                         } else {
 275                                 lpfc_sli_handle_slow_ring_event(phba, pring,
 276                                                                 (ha_copy &
 277                                                                  HA_RXMASK));
 278                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
 279                         }
 280                         /*
 281                          * Turn on Ring interrupts
 282                          */
 283                         spin_lock_irq(phba->host->host_lock);
 284                         control = readl(phba->HCregaddr);
 285                         control |= (HC_R0INT_ENA << i);
 286                         writel(control, phba->HCregaddr);
 287                         readl(phba->HCregaddr); /* flush */
 288                         spin_unlock_irq(phba->host->host_lock);
 289                 }
 290         }
 291
 292         lpfc_work_list_done (phba);
 293
 294 }
 295
 296 static int
 297 check_work_wait_done(struct lpfc_hba *phba) {
 298
 299         spin_lock_irq(phba->host->host_lock);
 300         if (phba->work_ha ||
 301             phba->work_hba_events ||
 302             (!list_empty(&phba->work_list)) ||
 303             kthread_should_stop()) {
 304                 spin_unlock_irq(phba->host->host_lock);
 305                 return 1;
 306         } else {
 307                 spin_unlock_irq(phba->host->host_lock);
 308                 return 0;
 309         }
 310 }
 311
 312 int
 313 lpfc_do_work(void *p)
 314 {
 315         struct lpfc_hba *phba = p;
 316         int rc;
 317         DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
 318
 319         set_user_nice(current, -20);
 320         phba->work_wait = &work_waitq;
 321
 322         while (1) {
 323
 324                 rc = wait_event_interruptible(work_waitq,
 325                                                 check_work_wait_done(phba));
 326                 BUG_ON(rc);
 327
 328                 if (kthread_should_stop())
 329                         break;
 330
 331                 lpfc_work_done(phba);
 332
 333         }
 334         phba->work_wait = NULL;
 335         return 0;
 336 }
 337
 338 /*
 339  * This is only called to handle FC worker events. Since this a rare
 340  * occurance, we allocate a struct lpfc_work_evt structure here instead of
 341  * embedding it in the IOCB.
 342  */
 343 int
 344 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
 345                       uint32_t evt)
 346 {
 347         struct lpfc_work_evt  *evtp;
 348
 349         /*
 350          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
 351          * be queued to worker thread for processing
 352          */
 353         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
 354         if (!evtp)
 355                 return 0;
 356
 357         evtp->evt_arg1  = arg1;
 358         evtp->evt_arg2  = arg2;
 359         evtp->evt       = evt;
 360
 361         spin_lock_irq(phba->host->host_lock);
 362         list_add_tail(&evtp->evt_listp, &phba->work_list);
 363         if (phba->work_wait)
 364                 wake_up(phba->work_wait);
 365         spin_unlock_irq(phba->host->host_lock);
 366
 367         return 1;
 368 }
 369
 370 int
 371 lpfc_linkdown(struct lpfc_hba * phba)
 372 {
 373         struct lpfc_sli       *psli;
 374         struct lpfc_nodelist  *ndlp, *next_ndlp;
 375         struct list_head *listp, *node_list[7];
 376         LPFC_MBOXQ_t     *mb;
 377         int               rc, i;
 378
 379         psli = &phba->sli;
 380         /* sysfs or selective reset may call this routine to clean up */
 381         if (phba->hba_state >= LPFC_LINK_DOWN) {
 382                 if (phba->hba_state == LPFC_LINK_DOWN)
 383                         return 0;
 384
 385                 spin_lock_irq(phba->host->host_lock);
 386                 phba->hba_state = LPFC_LINK_DOWN;
 387                 spin_unlock_irq(phba->host->host_lock);
 388         }
 389
 390         fc_host_post_event(phba->host, fc_get_event_number(),
 391                         FCH_EVT_LINKDOWN, 0);
 392
 393         /* Clean up any firmware default rpi's */
 394         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 395                 lpfc_unreg_did(phba, 0xffffffff, mb);
 396                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 397                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 398                     == MBX_NOT_FINISHED) {
 399                         mempool_free( mb, phba->mbox_mem_pool);
 400                 }
 401         }
 402
 403         /* Cleanup any outstanding RSCN activity */
 404         lpfc_els_flush_rscn(phba);
 405
 406         /* Cleanup any outstanding ELS commands */
 407         lpfc_els_flush_cmd(phba);
 408
 409         /* Issue a LINK DOWN event to all nodes */
 410         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
 411         node_list[1] = &phba->fc_nlpmap_list;
 412         node_list[2] = &phba->fc_nlpunmap_list;
 413         node_list[3] = &phba->fc_prli_list;
 414         node_list[4] = &phba->fc_reglogin_list;
 415         node_list[5] = &phba->fc_adisc_list;
 416         node_list[6] = &phba->fc_plogi_list;
 417         for (i = 0; i < 7; i++) {
 418                 listp = node_list[i];
 419                 if (list_empty(listp))
 420                         continue;
 421
 422                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 423
 424                         rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 425                                              NLP_EVT_DEVICE_RECOVERY);
 426
 427                 }
 428         }
 429
 430         /* free any ndlp's on unused list */
 431         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 432                                 nlp_listp)
 433                 lpfc_drop_node(phba, ndlp);
 434
 435         /* Setup myDID for link up if we are in pt2pt mode */
 436         if (phba->fc_flag & FC_PT2PT) {
 437                 phba->fc_myDID = 0;
 438                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 439                         lpfc_config_link(phba, mb);
 440                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 441                         if (lpfc_sli_issue_mbox
 442                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 443                             == MBX_NOT_FINISHED) {
 444                                 mempool_free( mb, phba->mbox_mem_pool);
 445                         }
 446                 }
 447                 spin_lock_irq(phba->host->host_lock);
 448                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
 449                 spin_unlock_irq(phba->host->host_lock);
 450         }
 451         spin_lock_irq(phba->host->host_lock);
 452         phba->fc_flag &= ~FC_LBIT;
 453         spin_unlock_irq(phba->host->host_lock);
 454
 455         /* Turn off discovery timer if its running */
 456         lpfc_can_disctmo(phba);
 457
 458         /* Must process IOCBs on all rings to handle ABORTed I/Os */
 459         return 0;
 460 }
 461
 462 static int
 463 lpfc_linkup(struct lpfc_hba * phba)
 464 {
 465         struct lpfc_nodelist *ndlp, *next_ndlp;
 466         struct list_head *listp, *node_list[7];
 467         int i;
 468
 469         fc_host_post_event(phba->host, fc_get_event_number(),
 470                         FCH_EVT_LINKUP, 0);
 471
 472         spin_lock_irq(phba->host->host_lock);
 473         phba->hba_state = LPFC_LINK_UP;
 474         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
 475                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
 476         phba->fc_flag |= FC_NDISC_ACTIVE;
 477         phba->fc_ns_retry = 0;
 478         spin_unlock_irq(phba->host->host_lock);
 479
 480
 481         node_list[0] = &phba->fc_plogi_list;
 482         node_list[1] = &phba->fc_adisc_list;
 483         node_list[2] = &phba->fc_reglogin_list;
 484         node_list[3] = &phba->fc_prli_list;
 485         node_list[4] = &phba->fc_nlpunmap_list;
 486         node_list[5] = &phba->fc_nlpmap_list;
 487         node_list[6] = &phba->fc_npr_list;
 488         for (i = 0; i < 7; i++) {
 489                 listp = node_list[i];
 490                 if (list_empty(listp))
 491                         continue;
 492
 493                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 494                         if (phba->fc_flag & FC_LBIT) {
 495                                 if (ndlp->nlp_type & NLP_FABRIC) {
 496                                         /* On Linkup its safe to clean up the
 497                                          * ndlp from Fabric connections.
 498                                          */
 499                                         lpfc_nlp_set_state(phba, ndlp,
 500                                                        NLP_STE_UNUSED_NODE);
 501                                 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
 502                                         /* Fail outstanding IO now since device
 503                                          * is marked for PLOGI.
 504                                          */
 505                                         lpfc_unreg_rpi(phba, ndlp);
 506                                 }
 507                         }
 508                 }
 509         }
 510
 511         /* free any ndlp's on unused list */
 512         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 513                                 nlp_listp)
 514                 lpfc_drop_node(phba, ndlp);
 515
 516         return 0;
 517 }
 518
 519 /*
 520  * This routine handles processing a CLEAR_LA mailbox
 521  * command upon completion. It is setup in the LPFC_MBOXQ
 522  * as the completion routine when the command is
 523  * handed off to the SLI layer.
 524  */
 525 void
 526 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 527 {
 528         struct lpfc_sli *psli;
 529         MAILBOX_t *mb;
 530         uint32_t control;
 531
 532         psli = &phba->sli;
 533         mb = &pmb->mb;
 534         /* Since we don't do discovery right now, turn these off here */
 535         psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 536         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 537         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 538
 539         /* Check for error */
 540         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
 541                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
 542                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 543                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
 544                                 "state x%x\n",
 545                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 546
 547                 phba->hba_state = LPFC_HBA_ERROR;
 548                 goto out;
 549         }
 550
 551         if (phba->fc_flag & FC_ABORT_DISCOVERY)
 552                 goto out;
 553
 554         phba->num_disc_nodes = 0;
 555         /* go thru NPR list and issue ELS PLOGIs */
 556         if (phba->fc_npr_cnt) {
 557                 lpfc_els_disc_plogi(phba);
 558         }
 559
 560         if (!phba->num_disc_nodes) {
 561                 spin_lock_irq(phba->host->host_lock);
 562                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 563                 spin_unlock_irq(phba->host->host_lock);
 564         }
 565
 566         phba->hba_state = LPFC_HBA_READY;
 567
 568 out:
 569         /* Device Discovery completes */
 570         lpfc_printf_log(phba,
 571                          KERN_INFO,
 572                          LOG_DISCOVERY,
 573                          "%d:0225 Device Discovery completes\n",
 574                          phba->brd_no);
 575
 576         mempool_free( pmb, phba->mbox_mem_pool);
 577
 578         spin_lock_irq(phba->host->host_lock);
 579         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
 580         if (phba->fc_flag & FC_ESTABLISH_LINK) {
 581                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
 582         }
 583         spin_unlock_irq(phba->host->host_lock);
 584
 585         del_timer_sync(&phba->fc_estabtmo);
 586
 587         lpfc_can_disctmo(phba);
 588
 589         /* turn on Link Attention interrupts */
 590         spin_lock_irq(phba->host->host_lock);
 591         psli->sli_flag |= LPFC_PROCESS_LA;
 592         control = readl(phba->HCregaddr);
 593         control |= HC_LAINT_ENA;
 594         writel(control, phba->HCregaddr);
 595         readl(phba->HCregaddr); /* flush */
 596         spin_unlock_irq(phba->host->host_lock);
 597
 598         return;
 599 }
 600
 601 static void
 602 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 603 {
 604         struct lpfc_sli *psli = &phba->sli;
 605         int rc;
 606
 607         if (pmb->mb.mbxStatus)
 608                 goto out;
 609
 610         mempool_free(pmb, phba->mbox_mem_pool);
 611
 612         if (phba->fc_topology == TOPOLOGY_LOOP &&
 613                 phba->fc_flag & FC_PUBLIC_LOOP &&
 614                  !(phba->fc_flag & FC_LBIT)) {
 615                         /* Need to wait for FAN - use discovery timer
 616                          * for timeout.  hba_state is identically
 617                          * LPFC_LOCAL_CFG_LINK while waiting for FAN
 618                          */
 619                         lpfc_set_disctmo(phba);
 620                         return;
 621                 }
 622
 623         /* Start discovery by sending a FLOGI. hba_state is identically
 624          * LPFC_FLOGI while waiting for FLOGI cmpl
 625          */
 626         phba->hba_state = LPFC_FLOGI;
 627         lpfc_set_disctmo(phba);
 628         lpfc_initial_flogi(phba);
 629         return;
 630
 631 out:
 632         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 633                         "%d:0306 CONFIG_LINK mbxStatus error x%x "
 634                         "HBA state x%x\n",
 635                         phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
 636
 637         lpfc_linkdown(phba);
 638
 639         phba->hba_state = LPFC_HBA_ERROR;
 640
 641         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 642                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
 643                         phba->brd_no, phba->hba_state);
 644
 645         lpfc_clear_la(phba, pmb);
 646         pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 647         rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 648         if (rc == MBX_NOT_FINISHED) {
 649                 mempool_free(pmb, phba->mbox_mem_pool);
 650                 lpfc_disc_flush_list(phba);
 651                 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 652                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 653                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 654                 phba->hba_state = LPFC_HBA_READY;
 655         }
 656         return;
 657 }
 658
 659 static void
 660 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 661 {
 662         struct lpfc_sli *psli = &phba->sli;
 663         MAILBOX_t *mb = &pmb->mb;
 664         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
 665
 666
 667         /* Check for error */
 668         if (mb->mbxStatus) {
 669                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
 670                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 671                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
 672                                 "hba state x%x>\n",
 673                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 674
 675                 lpfc_linkdown(phba);
 676                 phba->hba_state = LPFC_HBA_ERROR;
 677                 goto out;
 678         }
 679
 680         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 681                sizeof (struct serv_parm));
 682         if (phba->cfg_soft_wwnn)
 683                 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
 684         if (phba->cfg_soft_wwpn)
 685                 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 686         memcpy((uint8_t *) & phba->fc_nodename,
 687                (uint8_t *) & phba->fc_sparam.nodeName,
 688                sizeof (struct lpfc_name));
 689         memcpy((uint8_t *) & phba->fc_portname,
 690                (uint8_t *) & phba->fc_sparam.portName,
 691                sizeof (struct lpfc_name));
 692         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 693         kfree(mp);
 694         mempool_free( pmb, phba->mbox_mem_pool);
 695         return;
 696
 697 out:
 698         pmb->context1 = NULL;
 699         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 700         kfree(mp);
 701         if (phba->hba_state != LPFC_CLEAR_LA) {
 702                 lpfc_clear_la(phba, pmb);
 703                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 704                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 705                     == MBX_NOT_FINISHED) {
 706                         mempool_free( pmb, phba->mbox_mem_pool);
 707                         lpfc_disc_flush_list(phba);
 708                         psli->ring[(psli->extra_ring)].flag &=
 709                             ~LPFC_STOP_IOCB_EVENT;
 710                         psli->ring[(psli->fcp_ring)].flag &=
 711                             ~LPFC_STOP_IOCB_EVENT;
 712                         psli->ring[(psli->next_ring)].flag &=
 713                             ~LPFC_STOP_IOCB_EVENT;
 714                         phba->hba_state = LPFC_HBA_READY;
 715                 }
 716         } else {
 717                 mempool_free( pmb, phba->mbox_mem_pool);
 718         }
 719         return;
 720 }
 721
 722 static void
 723 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
 724 {
 725         int i;
 726         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
 727         struct lpfc_dmabuf *mp;
 728         int rc;
 729
 730         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 731         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 732
 733         spin_lock_irq(phba->host->host_lock);
 734         switch (la->UlnkSpeed) {
 735                 case LA_1GHZ_LINK:
 736                         phba->fc_linkspeed = LA_1GHZ_LINK;
 737                         break;
 738                 case LA_2GHZ_LINK:
 739                         phba->fc_linkspeed = LA_2GHZ_LINK;
 740                         break;
 741                 case LA_4GHZ_LINK:
 742                         phba->fc_linkspeed = LA_4GHZ_LINK;
 743                         break;
 744                 default:
 745                         phba->fc_linkspeed = LA_UNKNW_LINK;
 746                         break;
 747         }
 748
 749         phba->fc_topology = la->topology;
 750
 751         if (phba->fc_topology == TOPOLOGY_LOOP) {
 752         /* Get Loop Map information */
 753
 754                 if (la->il)
 755                         phba->fc_flag |= FC_LBIT;
 756
 757                 phba->fc_myDID = la->granted_AL_PA;
 758                 i = la->un.lilpBde64.tus.f.bdeSize;
 759
 760                 if (i == 0) {
 761                         phba->alpa_map[0] = 0;
 762                 } else {
 763                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
 764                                 int numalpa, j, k;
 765                                 union {
 766                                         uint8_t pamap[16];
 767                                         struct {
 768                                                 uint32_t wd1;
 769                                                 uint32_t wd2;
 770                                                 uint32_t wd3;
 771                                                 uint32_t wd4;
 772                                         } pa;
 773                                 } un;
 774                                 numalpa = phba->alpa_map[0];
 775                                 j = 0;
 776                                 while (j < numalpa) {
 777                                         memset(un.pamap, 0, 16);
 778                                         for (k = 1; j < numalpa; k++) {
 779                                                 un.pamap[k - 1] =
 780                                                         phba->alpa_map[j + 1];
 781                                                 j++;
 782                                                 if (k == 16)
 783                                                         break;
 784                                         }
 785                                         /* Link Up Event ALPA map */
 786                                         lpfc_printf_log(phba,
 787                                                 KERN_WARNING,
 788                                                 LOG_LINK_EVENT,
 789                                                 "%d:1304 Link Up Event "
 790                                                 "ALPA map Data: x%x "
 791                                                 "x%x x%x x%x\n",
 792                                                 phba->brd_no,
 793                                                 un.pa.wd1, un.pa.wd2,
 794                                                 un.pa.wd3, un.pa.wd4);
 795                                 }
 796                         }
 797                 }
 798         } else {
 799                 phba->fc_myDID = phba->fc_pref_DID;
 800                 phba->fc_flag |= FC_LBIT;
 801         }
 802         spin_unlock_irq(phba->host->host_lock);
 803
 804         lpfc_linkup(phba);
 805         if (sparam_mbox) {
 806                 lpfc_read_sparam(phba, sparam_mbox);
 807                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
 808                 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
 809                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 810                 if (rc == MBX_NOT_FINISHED) {
 811                         mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
 812                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 813                         kfree(mp);
 814                         mempool_free(sparam_mbox, phba->mbox_mem_pool);
 815                         if (cfglink_mbox)
 816                                 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
 817                         return;
 818                 }
 819         }
 820
 821         if (cfglink_mbox) {
 822                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
 823                 lpfc_config_link(phba, cfglink_mbox);
 824                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
 825                 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
 826                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 827                 if (rc == MBX_NOT_FINISHED)
 828                         mempool_free(cfglink_mbox, phba->mbox_mem_pool);
 829         }
 830 }
 831
 832 static void
 833 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
 834         uint32_t control;
 835         struct lpfc_sli *psli = &phba->sli;
 836
 837         lpfc_linkdown(phba);
 838
 839         /* turn on Link Attention interrupts - no CLEAR_LA needed */
 840         spin_lock_irq(phba->host->host_lock);
 841         psli->sli_flag |= LPFC_PROCESS_LA;
 842         control = readl(phba->HCregaddr);
 843         control |= HC_LAINT_ENA;
 844         writel(control, phba->HCregaddr);
 845         readl(phba->HCregaddr); /* flush */
 846         spin_unlock_irq(phba->host->host_lock);
 847 }
 848
 849 /*
 850  * This routine handles processing a READ_LA mailbox
 851  * command upon completion. It is setup in the LPFC_MBOXQ
 852  * as the completion routine when the command is
 853  * handed off to the SLI layer.
 854  */
 855 void
 856 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 857 {
 858         READ_LA_VAR *la;
 859         MAILBOX_t *mb = &pmb->mb;
 860         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 861
 862         /* Check for error */
 863         if (mb->mbxStatus) {
 864                 lpfc_printf_log(phba,
 865                                 KERN_INFO,
 866                                 LOG_LINK_EVENT,
 867                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
 868                                 phba->brd_no,
 869                                 mb->mbxStatus, phba->hba_state);
 870                 lpfc_mbx_issue_link_down(phba);
 871                 phba->hba_state = LPFC_HBA_ERROR;
 872                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
 873         }
 874
 875         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
 876
 877         memcpy(&phba->alpa_map[0], mp->virt, 128);
 878
 879         spin_lock_irq(phba->host->host_lock);
 880         if (la->pb)
 881                 phba->fc_flag |= FC_BYPASSED_MODE;
 882         else
 883                 phba->fc_flag &= ~FC_BYPASSED_MODE;
 884         spin_unlock_irq(phba->host->host_lock);
 885
 886         if (((phba->fc_eventTag + 1) < la->eventTag) ||
 887              (phba->fc_eventTag == la->eventTag)) {
 888                 phba->fc_stat.LinkMultiEvent++;
 889                 if (la->attType == AT_LINK_UP) {
 890                         if (phba->fc_eventTag != 0)
 891                                 lpfc_linkdown(phba);
 892                 }
 893         }
 894
 895         phba->fc_eventTag = la->eventTag;
 896
 897         if (la->attType == AT_LINK_UP) {
 898                 phba->fc_stat.LinkUp++;
 899                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 900                                 "%d:1303 Link Up Event x%x received "
 901                                 "Data: x%x x%x x%x x%x\n",
 902                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 903                                 la->granted_AL_PA, la->UlnkSpeed,
 904                                 phba->alpa_map[0]);
 905                 lpfc_mbx_process_link_up(phba, la);
 906         } else {
 907                 phba->fc_stat.LinkDown++;
 908                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 909                                 "%d:1305 Link Down Event x%x received "
 910                                 "Data: x%x x%x x%x\n",
 911                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 912                                 phba->hba_state, phba->fc_flag);
 913                 lpfc_mbx_issue_link_down(phba);
 914         }
 915
 916 lpfc_mbx_cmpl_read_la_free_mbuf:
 917         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 918         kfree(mp);
 919         mempool_free(pmb, phba->mbox_mem_pool);
 920         return;
 921 }
 922
 923 /*
 924  * This routine handles processing a REG_LOGIN mailbox
 925  * command upon completion. It is setup in the LPFC_MBOXQ
 926  * as the completion routine when the command is
 927  * handed off to the SLI layer.
 928  */
 929 void
 930 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 931 {
 932         struct lpfc_sli *psli;
 933         MAILBOX_t *mb;
 934         struct lpfc_dmabuf *mp;
 935         struct lpfc_nodelist *ndlp;
 936
 937         psli = &phba->sli;
 938         mb = &pmb->mb;
 939
 940         ndlp = (struct lpfc_nodelist *) pmb->context2;
 941         mp = (struct lpfc_dmabuf *) (pmb->context1);
 942
 943         pmb->context1 = NULL;
 944
 945         /* Good status, call state machine */
 946         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 947         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 948         kfree(mp);
 949         mempool_free( pmb, phba->mbox_mem_pool);
 950
 951         return;
 952 }
 953
 954 /*
 955  * This routine handles processing a Fabric REG_LOGIN mailbox
 956  * command upon completion. It is setup in the LPFC_MBOXQ
 957  * as the completion routine when the command is
 958  * handed off to the SLI layer.
 959  */
 960 void
 961 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 962 {
 963         struct lpfc_sli *psli;
 964         MAILBOX_t *mb;
 965         struct lpfc_dmabuf *mp;
 966         struct lpfc_nodelist *ndlp;
 967         struct lpfc_nodelist *ndlp_fdmi;
 968
 969
 970         psli = &phba->sli;
 971         mb = &pmb->mb;
 972
 973         ndlp = (struct lpfc_nodelist *) pmb->context2;
 974         mp = (struct lpfc_dmabuf *) (pmb->context1);
 975
 976         if (mb->mbxStatus) {
 977                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 978                 kfree(mp);
 979                 mempool_free( pmb, phba->mbox_mem_pool);
 980                 mempool_free( ndlp, phba->nlp_mem_pool);
 981
 982                 /* FLOGI failed, so just use loop map to make discovery list */
 983                 lpfc_disc_list_loopmap(phba);
 984
 985                 /* Start discovery */
 986                 lpfc_disc_start(phba);
 987                 return;
 988         }
 989
 990         pmb->context1 = NULL;
 991
 992         ndlp->nlp_rpi = mb->un.varWords[0];
 993         ndlp->nlp_type |= NLP_FABRIC;
 994         lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
 995
 996         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 997                 /* This NPort has been assigned an NPort_ID by the fabric as a
 998                  * result of the completed fabric login.  Issue a State Change
 999                  * Registration (SCR) ELS request to the fabric controller
1000                  * (SCR_DID) so that this NPort gets RSCN events from the
1001                  * fabric.
1002                  */
1003                 lpfc_issue_els_scr(phba, SCR_DID, 0);
1004
1005                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
1006                 if (!ndlp) {
1007                         /* Allocate a new node instance. If the pool is empty,
1008                          * start the discovery process and skip the Nameserver
1009                          * login process.  This is attempted again later on.
1010                          * Otherwise, issue a Port Login (PLOGI) to NameServer.
1011                          */
1012                         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1013                         if (!ndlp) {
1014                                 lpfc_disc_start(phba);
1015                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1016                                 kfree(mp);
1017                                 mempool_free( pmb, phba->mbox_mem_pool);
1018                                 return;
1019                         } else {
1020                                 lpfc_nlp_init(phba, ndlp, NameServer_DID);
1021                                 ndlp->nlp_type |= NLP_FABRIC;
1022                         }
1023                 }
1024                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_PLOGI_ISSUE);
1025                 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
1026                 if (phba->cfg_fdmi_on) {
1027                         ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
1028                                                                 GFP_KERNEL);
1029                         if (ndlp_fdmi) {
1030                                 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
1031                                 ndlp_fdmi->nlp_type |= NLP_FABRIC;
1032                                 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
1033                                 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
1034                         }
1035                 }
1036         }
1037
1038         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1039         kfree(mp);
1040         mempool_free( pmb, phba->mbox_mem_pool);
1041         return;
1042 }
1043
1044 /*
1045  * This routine handles processing a NameServer REG_LOGIN mailbox
1046  * command upon completion. It is setup in the LPFC_MBOXQ
1047  * as the completion routine when the command is
1048  * handed off to the SLI layer.
1049  */
1050 void
1051 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1052 {
1053         struct lpfc_sli *psli;
1054         MAILBOX_t *mb;
1055         struct lpfc_dmabuf *mp;
1056         struct lpfc_nodelist *ndlp;
1057
1058         psli = &phba->sli;
1059         mb = &pmb->mb;
1060
1061         ndlp = (struct lpfc_nodelist *) pmb->context2;
1062         mp = (struct lpfc_dmabuf *) (pmb->context1);
1063
1064         if (mb->mbxStatus) {
1065                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1066                 kfree(mp);
1067                 mempool_free(pmb, phba->mbox_mem_pool);
1068                 lpfc_drop_node(phba, ndlp);
1069
1070                 /* RegLogin failed, so just use loop map to make discovery
1071                    list */
1072                 lpfc_disc_list_loopmap(phba);
1073
1074                 /* Start discovery */
1075                 lpfc_disc_start(phba);
1076                 return;
1077         }
1078
1079         pmb->context1 = NULL;
1080
1081         ndlp->nlp_rpi = mb->un.varWords[0];
1082         ndlp->nlp_type |= NLP_FABRIC;
1083         lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
1084
1085         if (phba->hba_state < LPFC_HBA_READY) {
1086                 /* Link up discovery requires Fabrib registration. */
1087                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1088                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1089                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1090                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
1091         }
1092
1093         phba->fc_ns_retry = 0;
1094         /* Good status, issue CT Request to NameServer */
1095         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1096                 /* Cannot issue NameServer Query, so finish up discovery */
1097                 lpfc_disc_start(phba);
1098         }
1099
1100         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1101         kfree(mp);
1102         mempool_free( pmb, phba->mbox_mem_pool);
1103
1104         return;
1105 }
1106
1107 static void
1108 lpfc_register_remote_port(struct lpfc_hba * phba,
1109                             struct lpfc_nodelist * ndlp)
1110 {
1111         struct fc_rport *rport;
1112         struct lpfc_rport_data *rdata;
1113         struct fc_rport_identifiers rport_ids;
1114
1115         /* Remote port has reappeared. Re-register w/ FC transport */
1116         rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1117         rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1118         rport_ids.port_id = ndlp->nlp_DID;
1119         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1120
1121         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1122         if (!rport) {
1123                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1124                            "Warning: fc_remote_port_add failed\n");
1125                 return;
1126         }
1127
1128         /* initialize static port data */
1129         rport->maxframe_size = ndlp->nlp_maxframe;
1130         rport->supported_classes = ndlp->nlp_class_sup;
1131         rdata = rport->dd_data;
1132         rdata->pnode = ndlp;
1133
1134         if (ndlp->nlp_type & NLP_FCP_TARGET)
1135                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1136         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1137                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1138
1139
1140         if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
1141                 fc_remote_port_rolechg(rport, rport_ids.roles);
1142
1143         if ((rport->scsi_target_id != -1) &&
1144                 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1145                 ndlp->nlp_sid = rport->scsi_target_id;
1146         }
1147
1148         return;
1149 }
1150
1151 static void
1152 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1153                             struct lpfc_nodelist * ndlp)
1154 {
1155         struct fc_rport *rport = ndlp->rport;
1156         struct lpfc_rport_data *rdata = rport->dd_data;
1157
1158         if (rport->scsi_target_id == -1) {
1159                 ndlp->rport = NULL;
1160                 rdata->pnode = NULL;
1161         }
1162
1163         fc_remote_port_delete(rport);
1164
1165         return;
1166 }
1167
1168 static void
1169 lpfc_nlp_counters(struct lpfc_hba *phba, int state, int count)
1170 {
1171         switch (state) {
1172         case NLP_STE_UNUSED_NODE:
1173                 phba->fc_unused_cnt += count;
1174                 break;
1175         case NLP_STE_PLOGI_ISSUE:
1176                 phba->fc_plogi_cnt += count;
1177                 break;
1178         case NLP_STE_ADISC_ISSUE:
1179                 phba->fc_adisc_cnt += count;
1180                 break;
1181         case NLP_STE_REG_LOGIN_ISSUE:
1182                 phba->fc_reglogin_cnt += count;
1183                 break;
1184         case NLP_STE_PRLI_ISSUE:
1185                 phba->fc_prli_cnt += count;
1186                 break;
1187         case NLP_STE_UNMAPPED_NODE:
1188                 phba->fc_unmap_cnt += count;
1189                 break;
1190         case NLP_STE_MAPPED_NODE:
1191                 phba->fc_map_cnt += count;
1192                 break;
1193         case NLP_STE_NPR_NODE:
1194                 phba->fc_npr_cnt += count;
1195                 break;
1196         }
1197 }
1198
1199 void
1200 lpfc_delink_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1201 {
1202         switch (ndlp->nlp_flag & NLP_LIST_MASK) {
1203         case NLP_UNUSED_LIST:
1204                 list_del_init(&ndlp->nlp_listp);
1205                 break;
1206         case NLP_PLOGI_LIST:
1207                 list_del_init(&ndlp->nlp_listp);
1208                 break;
1209         case NLP_ADISC_LIST:
1210                 list_del_init(&ndlp->nlp_listp);
1211                 break;
1212         case NLP_REGLOGIN_LIST:
1213                 list_del_init(&ndlp->nlp_listp);
1214                 break;
1215         case NLP_PRLI_LIST:
1216                 list_del_init(&ndlp->nlp_listp);
1217                 break;
1218         case NLP_UNMAPPED_LIST:
1219                 list_del_init(&ndlp->nlp_listp);
1220                 break;
1221         case NLP_MAPPED_LIST:
1222                 list_del_init(&ndlp->nlp_listp);
1223                 break;
1224         case NLP_NPR_LIST:
1225                 list_del_init(&ndlp->nlp_listp);
1226                 break;
1227         }
1228
1229         ndlp->nlp_flag &= ~NLP_LIST_MASK;
1230 }
1231
1232 static int
1233 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1234 {
1235         struct lpfc_sli      *psli;
1236
1237         psli = &phba->sli;
1238         /* Sanity check to ensure we are not moving to / from the same list */
1239         if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1240                 return 0;
1241
1242         spin_lock_irq(phba->host->host_lock);
1243         lpfc_delink_node(phba, nlp);
1244
1245         /* Add NPort <did> to <num> list */
1246         lpfc_printf_log(phba,
1247                         KERN_INFO,
1248                         LOG_NODE,
1249                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1250                         phba->brd_no,
1251                         nlp->nlp_DID, list, nlp->nlp_flag);
1252
1253         switch (list) {
1254         case NLP_UNUSED_LIST:
1255                 nlp->nlp_flag |= list;
1256                 /* Put it at the end of the unused list */
1257                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1258                 break;
1259         case NLP_PLOGI_LIST:
1260                 nlp->nlp_flag |= list;
1261                 /* Put it at the end of the plogi list */
1262                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1263                 break;
1264         case NLP_ADISC_LIST:
1265                 nlp->nlp_flag |= list;
1266                 /* Put it at the end of the adisc list */
1267                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1268                 break;
1269         case NLP_REGLOGIN_LIST:
1270                 nlp->nlp_flag |= list;
1271                 /* Put it at the end of the reglogin list */
1272                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1273                 break;
1274         case NLP_PRLI_LIST:
1275                 nlp->nlp_flag |= list;
1276                 /* Put it at the end of the prli list */
1277                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1278                 break;
1279         case NLP_UNMAPPED_LIST:
1280                 nlp->nlp_flag |= list;
1281                 /* Put it at the end of the unmap list */
1282                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1283                 break;
1284         case NLP_MAPPED_LIST:
1285                 nlp->nlp_flag |= list;
1286                 /* Put it at the end of the map list */
1287                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1288                 break;
1289         case NLP_NPR_LIST:
1290                 nlp->nlp_flag |= list;
1291                 /* Put it at the end of the npr list */
1292                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1293                 break;
1294         }
1295
1296         spin_unlock_irq(phba->host->host_lock);
1297         return 0;
1298 }
1299
1300 static void
1301 lpfc_nlp_state_cleanup(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1302                        int old_state, int new_state)
1303 {
1304         if (new_state == NLP_STE_UNMAPPED_NODE) {
1305                 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1306                 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1307                 ndlp->nlp_type |= NLP_FC_NODE;
1308         }
1309         if (new_state == NLP_STE_MAPPED_NODE)
1310                 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1311         if (new_state == NLP_STE_NPR_NODE)
1312                 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1313
1314         /* Transport interface */
1315         if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1316                             old_state == NLP_STE_UNMAPPED_NODE)) {
1317                 phba->nport_event_cnt++;
1318                 lpfc_unregister_remote_port(phba, ndlp);
1319         }
1320
1321         if (new_state ==  NLP_STE_MAPPED_NODE ||
1322             new_state == NLP_STE_UNMAPPED_NODE) {
1323                 phba->nport_event_cnt++;
1324                         /*
1325                          * Tell the fc transport about the port, if we haven't
1326                          * already. If we have, and it's a scsi entity, be
1327                          * sure to unblock any attached scsi devices
1328                          */
1329                 if (!ndlp->rport ||
1330                     ndlp->rport->port_state == FC_PORTSTATE_BLOCKED)
1331                         lpfc_register_remote_port(phba, ndlp);
1332         }
1333
1334                         /*
1335                          * if we added to Mapped list, but the remote port
1336                          * registration failed or assigned a target id outside
1337                          * our presentable range - move the node to the
1338                          * Unmapped List
1339                          */
1340         if (new_state == NLP_STE_MAPPED_NODE &&
1341             (!ndlp->rport ||
1342              ndlp->rport->scsi_target_id == -1 ||
1343              ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
1344                 spin_lock_irq(phba->host->host_lock);
1345                 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1346                 spin_unlock_irq(phba->host->host_lock);
1347                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
1348         }
1349 }
1350
1351 void
1352 lpfc_nlp_set_state(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int state)
1353 {
1354         int  old_state = ndlp->nlp_state;
1355         static int  list_id[] = {
1356                 [NLP_STE_UNUSED_NODE] = NLP_UNUSED_LIST,
1357                 [NLP_STE_PLOGI_ISSUE] = NLP_PLOGI_LIST,
1358                 [NLP_STE_ADISC_ISSUE] = NLP_ADISC_LIST,
1359                 [NLP_STE_REG_LOGIN_ISSUE] = NLP_REGLOGIN_LIST,
1360                 [NLP_STE_PRLI_ISSUE] = NLP_PRLI_LIST,
1361                 [NLP_STE_UNMAPPED_NODE] = NLP_UNMAPPED_LIST,
1362                 [NLP_STE_MAPPED_NODE] = NLP_MAPPED_LIST,
1363                 [NLP_STE_NPR_NODE] = NLP_NPR_LIST,
1364         };
1365
1366         if (old_state == NLP_STE_NPR_NODE &&
1367             (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1368             state != NLP_STE_NPR_NODE)
1369                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1370         if (old_state == NLP_STE_UNMAPPED_NODE) {
1371                 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1372                 ndlp->nlp_type &= ~NLP_FC_NODE;
1373         }
1374
1375         if (old_state && !list_empty(&ndlp->nlp_listp))
1376                 lpfc_nlp_counters(phba, old_state, -1);
1377
1378         ndlp->nlp_state = state;
1379         lpfc_nlp_list(phba, ndlp, list_id[state]);
1380         lpfc_nlp_counters(phba, state, 1);
1381
1382         lpfc_nlp_state_cleanup(phba, ndlp, old_state, state);
1383 }
1384
1385 void
1386 lpfc_dequeue_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1387 {
1388         if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1389                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1390         spin_lock_irq(phba->host->host_lock);
1391         if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1392                 lpfc_nlp_counters(phba, ndlp->nlp_state, -1);
1393         lpfc_delink_node(phba, ndlp);
1394         spin_unlock_irq(phba->host->host_lock);
1395         lpfc_nlp_state_cleanup(phba, ndlp, ndlp->nlp_state, 0);
1396 }
1397
1398 void
1399 lpfc_drop_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1400 {
1401         if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1402                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1403         spin_lock_irq(phba->host->host_lock);
1404         if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1405                 lpfc_nlp_counters(phba, ndlp->nlp_state, -1);
1406         lpfc_delink_node(phba, ndlp);
1407         spin_unlock_irq(phba->host->host_lock);
1408         lpfc_nlp_remove(phba, ndlp);
1409 }
1410
1411 /*
1412  * Start / ReStart rescue timer for Discovery / RSCN handling
1413  */
1414 void
1415 lpfc_set_disctmo(struct lpfc_hba * phba)
1416 {
1417         uint32_t tmo;
1418
1419         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1420                 /* For FAN, timeout should be greater then edtov */
1421                 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1422         } else {
1423                 /* Normal discovery timeout should be > then ELS/CT timeout
1424                  * FC spec states we need 3 * ratov for CT requests
1425                  */
1426                 tmo = ((phba->fc_ratov * 3) + 3);
1427         }
1428
1429         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1430         spin_lock_irq(phba->host->host_lock);
1431         phba->fc_flag |= FC_DISC_TMO;
1432         spin_unlock_irq(phba->host->host_lock);
1433
1434         /* Start Discovery Timer state <hba_state> */
1435         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1436                         "%d:0247 Start Discovery Timer state x%x "
1437                         "Data: x%x x%lx x%x x%x\n",
1438                         phba->brd_no,
1439                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1440                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1441
1442         return;
1443 }
1444
1445 /*
1446  * Cancel rescue timer for Discovery / RSCN handling
1447  */
1448 int
1449 lpfc_can_disctmo(struct lpfc_hba * phba)
1450 {
1451         /* Turn off discovery timer if its running */
1452         if (phba->fc_flag & FC_DISC_TMO) {
1453                 spin_lock_irq(phba->host->host_lock);
1454                 phba->fc_flag &= ~FC_DISC_TMO;
1455                 spin_unlock_irq(phba->host->host_lock);
1456                 del_timer_sync(&phba->fc_disctmo);
1457                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1458         }
1459
1460         /* Cancel Discovery Timer state <hba_state> */
1461         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1462                         "%d:0248 Cancel Discovery Timer state x%x "
1463                         "Data: x%x x%x x%x\n",
1464                         phba->brd_no, phba->hba_state, phba->fc_flag,
1465                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1466
1467         return 0;
1468 }
1469
1470 /*
1471  * Check specified ring for outstanding IOCB on the SLI queue
1472  * Return true if iocb matches the specified nport
1473  */
1474 int
1475 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1476                     struct lpfc_sli_ring * pring,
1477                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1478 {
1479         struct lpfc_sli *psli;
1480         IOCB_t *icmd;
1481
1482         psli = &phba->sli;
1483         icmd = &iocb->iocb;
1484         if (pring->ringno == LPFC_ELS_RING) {
1485                 switch (icmd->ulpCommand) {
1486                 case CMD_GEN_REQUEST64_CR:
1487                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1488                                 return 1;
1489                 case CMD_ELS_REQUEST64_CR:
1490                         if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1491                                 return 1;
1492                 case CMD_XMIT_ELS_RSP64_CX:
1493                         if (iocb->context1 == (uint8_t *) ndlp)
1494                                 return 1;
1495                 }
1496         } else if (pring->ringno == psli->extra_ring) {
1497
1498         } else if (pring->ringno == psli->fcp_ring) {
1499                 /* Skip match check if waiting to relogin to FCP target */
1500                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1501                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1502                         return 0;
1503                 }
1504                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1505                         return 1;
1506                 }
1507         } else if (pring->ringno == psli->next_ring) {
1508
1509         }
1510         return 0;
1511 }
1512
1513 /*
1514  * Free resources / clean up outstanding I/Os
1515  * associated with nlp_rpi in the LPFC_NODELIST entry.
1516  */
1517 static int
1518 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1519 {
1520         LIST_HEAD(completions);
1521         struct lpfc_sli *psli;
1522         struct lpfc_sli_ring *pring;
1523         struct lpfc_iocbq *iocb, *next_iocb;
1524         IOCB_t *icmd;
1525         uint32_t rpi, i;
1526
1527         /*
1528          * Everything that matches on txcmplq will be returned
1529          * by firmware with a no rpi error.
1530          */
1531         psli = &phba->sli;
1532         rpi = ndlp->nlp_rpi;
1533         if (rpi) {
1534                 /* Now process each ring */
1535                 for (i = 0; i < psli->num_rings; i++) {
1536                         pring = &psli->ring[i];
1537
1538                         spin_lock_irq(phba->host->host_lock);
1539                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1540                                                 list) {
1541                                 /*
1542                                  * Check to see if iocb matches the nport we are
1543                                  * looking for
1544                                  */
1545                                 if ((lpfc_check_sli_ndlp
1546                                      (phba, pring, iocb, ndlp))) {
1547                                         /* It matches, so deque and call compl
1548                                            with an error */
1549                                         list_move_tail(&iocb->list,
1550                                                        &completions);
1551                                         pring->txq_cnt--;
1552                                 }
1553                         }
1554                         spin_unlock_irq(phba->host->host_lock);
1555
1556                 }
1557         }
1558
1559         while (!list_empty(&completions)) {
1560                 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1561                 list_del(&iocb->list);
1562
1563                 if (iocb->iocb_cmpl) {
1564                         icmd = &iocb->iocb;
1565                         icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1566                         icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1567                         (iocb->iocb_cmpl) (phba, iocb, iocb);
1568                 } else
1569                         lpfc_sli_release_iocbq(phba, iocb);
1570         }
1571
1572         return 0;
1573 }
1574
1575 /*
1576  * Free rpi associated with LPFC_NODELIST entry.
1577  * This routine is called from lpfc_freenode(), when we are removing
1578  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1579  * LOGO that completes successfully, and we are waiting to PLOGI back
1580  * to the remote NPort. In addition, it is called after we receive
1581  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1582  * we are waiting to PLOGI back to the remote NPort.
1583  */
1584 int
1585 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1586 {
1587         LPFC_MBOXQ_t *mbox;
1588         int rc;
1589
1590         if (ndlp->nlp_rpi) {
1591                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1592                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1593                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1594                         rc = lpfc_sli_issue_mbox
1595                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1596                         if (rc == MBX_NOT_FINISHED)
1597                                 mempool_free( mbox, phba->mbox_mem_pool);
1598                 }
1599                 lpfc_no_rpi(phba, ndlp);
1600                 ndlp->nlp_rpi = 0;
1601                 return 1;
1602         }
1603         return 0;
1604 }
1605
1606 /*
1607  * Free resources associated with LPFC_NODELIST entry
1608  * so it can be freed.
1609  */
1610 static int
1611 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1612 {
1613         LPFC_MBOXQ_t       *mb;
1614         LPFC_MBOXQ_t       *nextmb;
1615         struct lpfc_dmabuf *mp;
1616
1617         /* Cleanup node for NPort <nlp_DID> */
1618         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1619                         "%d:0900 Cleanup node for NPort x%x "
1620                         "Data: x%x x%x x%x\n",
1621                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1622                         ndlp->nlp_state, ndlp->nlp_rpi);
1623
1624         lpfc_dequeue_node(phba, ndlp);
1625
1626         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1627         if ((mb = phba->sli.mbox_active)) {
1628                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1629                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1630                         mb->context2 = NULL;
1631                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1632                 }
1633         }
1634
1635         spin_lock_irq(phba->host->host_lock);
1636         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1637                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1638                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1639                         mp = (struct lpfc_dmabuf *) (mb->context1);
1640                         if (mp) {
1641                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1642                                 kfree(mp);
1643                         }
1644                         list_del(&mb->list);
1645                         mempool_free(mb, phba->mbox_mem_pool);
1646                 }
1647         }
1648         spin_unlock_irq(phba->host->host_lock);
1649
1650         lpfc_els_abort(phba,ndlp);
1651         spin_lock_irq(phba->host->host_lock);
1652         ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1653         spin_unlock_irq(phba->host->host_lock);
1654
1655         ndlp->nlp_last_elscmd = 0;
1656         del_timer_sync(&ndlp->nlp_delayfunc);
1657
1658         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1659                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1660
1661         lpfc_unreg_rpi(phba, ndlp);
1662
1663         return 0;
1664 }
1665
1666 /*
1667  * Check to see if we can free the nlp back to the freelist.
1668  * If we are in the middle of using the nlp in the discovery state
1669  * machine, defer the free till we reach the end of the state machine.
1670  */
1671 int
1672 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1673 {
1674         struct lpfc_rport_data *rdata;
1675
1676         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1677                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1678         }
1679
1680         if (ndlp->nlp_disc_refcnt) {
1681                 spin_lock_irq(phba->host->host_lock);
1682                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1683                 spin_unlock_irq(phba->host->host_lock);
1684         } else {
1685                 lpfc_freenode(phba, ndlp);
1686
1687                 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1688                         rdata = ndlp->rport->dd_data;
1689                         rdata->pnode = NULL;
1690                         ndlp->rport = NULL;
1691                 }
1692
1693                 mempool_free( ndlp, phba->nlp_mem_pool);
1694         }
1695         return 0;
1696 }
1697
1698 static int
1699 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1700 {
1701         D_ID mydid;
1702         D_ID ndlpdid;
1703         D_ID matchdid;
1704
1705         if (did == Bcast_DID)
1706                 return 0;
1707
1708         if (ndlp->nlp_DID == 0) {
1709                 return 0;
1710         }
1711
1712         /* First check for Direct match */
1713         if (ndlp->nlp_DID == did)
1714                 return 1;
1715
1716         /* Next check for area/domain identically equals 0 match */
1717         mydid.un.word = phba->fc_myDID;
1718         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1719                 return 0;
1720         }
1721
1722         matchdid.un.word = did;
1723         ndlpdid.un.word = ndlp->nlp_DID;
1724         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1725                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1726                     (mydid.un.b.area == matchdid.un.b.area)) {
1727                         if ((ndlpdid.un.b.domain == 0) &&
1728                             (ndlpdid.un.b.area == 0)) {
1729                                 if (ndlpdid.un.b.id)
1730                                         return 1;
1731                         }
1732                         return 0;
1733                 }
1734
1735                 matchdid.un.word = ndlp->nlp_DID;
1736                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1737                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1738                         if ((matchdid.un.b.domain == 0) &&
1739                             (matchdid.un.b.area == 0)) {
1740                                 if (matchdid.un.b.id)
1741                                         return 1;
1742                         }
1743                 }
1744         }
1745         return 0;
1746 }
1747
1748 /* Search for a nodelist entry on a specific list */
1749 struct lpfc_nodelist *
1750 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1751 {
1752         struct lpfc_nodelist *ndlp;
1753         struct list_head *lists[]={&phba->fc_nlpunmap_list,
1754                                    &phba->fc_nlpmap_list,
1755                                    &phba->fc_plogi_list,
1756                                    &phba->fc_adisc_list,
1757                                    &phba->fc_reglogin_list,
1758                                    &phba->fc_prli_list,
1759                                    &phba->fc_npr_list,
1760                                    &phba->fc_unused_list};
1761         uint32_t search[]={NLP_SEARCH_UNMAPPED,
1762                            NLP_SEARCH_MAPPED,
1763                            NLP_SEARCH_PLOGI,
1764                            NLP_SEARCH_ADISC,
1765                            NLP_SEARCH_REGLOGIN,
1766                            NLP_SEARCH_PRLI,
1767                            NLP_SEARCH_NPR,
1768                            NLP_SEARCH_UNUSED};
1769         int i;
1770         uint32_t data1;
1771
1772         spin_lock_irq(phba->host->host_lock);
1773         for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
1774                 if (!(order & search[i]))
1775                         continue;
1776                 list_for_each_entry(ndlp, lists[i], nlp_listp) {
1777                         if (lpfc_matchdid(phba, ndlp, did)) {
1778                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1779                                          ((uint32_t) ndlp->nlp_xri << 16) |
1780                                          ((uint32_t) ndlp->nlp_type << 8) |
1781                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1782                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1783                                                 "%d:0929 FIND node DID "
1784                                                 " Data: x%p x%x x%x x%x\n",
1785                                                 phba->brd_no,
1786                                                 ndlp, ndlp->nlp_DID,
1787                                                 ndlp->nlp_flag, data1);
1788                                 spin_unlock_irq(phba->host->host_lock);
1789                                 return ndlp;
1790                         }
1791                 }
1792         }
1793         spin_unlock_irq(phba->host->host_lock);
1794
1795         /* FIND node did <did> NOT FOUND */
1796         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1797                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1798                         phba->brd_no, did, order);
1799         return NULL;
1800 }
1801
1802 struct lpfc_nodelist *
1803 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1804 {
1805         struct lpfc_nodelist *ndlp;
1806         uint32_t flg;
1807
1808         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1809         if (!ndlp) {
1810                 if ((phba->fc_flag & FC_RSCN_MODE) &&
1811                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1812                         return NULL;
1813                 ndlp = (struct lpfc_nodelist *)
1814                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1815                 if (!ndlp)
1816                         return NULL;
1817                 lpfc_nlp_init(phba, ndlp, did);
1818                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_NPR_NODE);
1819                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1820                 return ndlp;
1821         }
1822         if (phba->fc_flag & FC_RSCN_MODE) {
1823                 if (lpfc_rscn_payload_check(phba, did)) {
1824                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1825
1826                         /* Since this node is marked for discovery,
1827                          * delay timeout is not needed.
1828                          */
1829                         if (ndlp->nlp_flag & NLP_DELAY_TMO)
1830                                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1831                 } else
1832                         ndlp = NULL;
1833         } else {
1834                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1835                 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1836                         return NULL;
1837                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_NPR_NODE);
1838                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1839         }
1840         return ndlp;
1841 }
1842
1843 /* Build a list of nodes to discover based on the loopmap */
1844 void
1845 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1846 {
1847         int j;
1848         uint32_t alpa, index;
1849
1850         if (phba->hba_state <= LPFC_LINK_DOWN) {
1851                 return;
1852         }
1853         if (phba->fc_topology != TOPOLOGY_LOOP) {
1854                 return;
1855         }
1856
1857         /* Check for loop map present or not */
1858         if (phba->alpa_map[0]) {
1859                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1860                         alpa = phba->alpa_map[j];
1861
1862                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1863                                 continue;
1864                         }
1865                         lpfc_setup_disc_node(phba, alpa);
1866                 }
1867         } else {
1868                 /* No alpamap, so try all alpa's */
1869                 for (j = 0; j < FC_MAXLOOP; j++) {
1870                         /* If cfg_scan_down is set, start from highest
1871                          * ALPA (0xef) to lowest (0x1).
1872                          */
1873                         if (phba->cfg_scan_down)
1874                                 index = j;
1875                         else
1876                                 index = FC_MAXLOOP - j - 1;
1877                         alpa = lpfcAlpaArray[index];
1878                         if ((phba->fc_myDID & 0xff) == alpa) {
1879                                 continue;
1880                         }
1881
1882                         lpfc_setup_disc_node(phba, alpa);
1883                 }
1884         }
1885         return;
1886 }
1887
1888 /* Start Link up / RSCN discovery on NPR list */
1889 void
1890 lpfc_disc_start(struct lpfc_hba * phba)
1891 {
1892         struct lpfc_sli *psli;
1893         LPFC_MBOXQ_t *mbox;
1894         struct lpfc_nodelist *ndlp, *next_ndlp;
1895         uint32_t did_changed, num_sent;
1896         uint32_t clear_la_pending;
1897         int rc;
1898
1899         psli = &phba->sli;
1900
1901         if (phba->hba_state <= LPFC_LINK_DOWN) {
1902                 return;
1903         }
1904         if (phba->hba_state == LPFC_CLEAR_LA)
1905                 clear_la_pending = 1;
1906         else
1907                 clear_la_pending = 0;
1908
1909         if (phba->hba_state < LPFC_HBA_READY) {
1910                 phba->hba_state = LPFC_DISC_AUTH;
1911         }
1912         lpfc_set_disctmo(phba);
1913
1914         if (phba->fc_prevDID == phba->fc_myDID) {
1915                 did_changed = 0;
1916         } else {
1917                 did_changed = 1;
1918         }
1919         phba->fc_prevDID = phba->fc_myDID;
1920         phba->num_disc_nodes = 0;
1921
1922         /* Start Discovery state <hba_state> */
1923         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1924                         "%d:0202 Start Discovery hba state x%x "
1925                         "Data: x%x x%x x%x\n",
1926                         phba->brd_no, phba->hba_state, phba->fc_flag,
1927                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1928
1929         /* If our did changed, we MUST do PLOGI */
1930         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1931                                 nlp_listp) {
1932                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1933                         if (did_changed) {
1934                                 spin_lock_irq(phba->host->host_lock);
1935                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1936                                 spin_unlock_irq(phba->host->host_lock);
1937                         }
1938                 }
1939         }
1940
1941         /* First do ADISCs - if any */
1942         num_sent = lpfc_els_disc_adisc(phba);
1943
1944         if (num_sent)
1945                 return;
1946
1947         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1948                 /* If we get here, there is nothing to ADISC */
1949                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1950                         phba->hba_state = LPFC_CLEAR_LA;
1951                         lpfc_clear_la(phba, mbox);
1952                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1953                         rc = lpfc_sli_issue_mbox(phba, mbox,
1954                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1955                         if (rc == MBX_NOT_FINISHED) {
1956                                 mempool_free( mbox, phba->mbox_mem_pool);
1957                                 lpfc_disc_flush_list(phba);
1958                                 psli->ring[(psli->extra_ring)].flag &=
1959                                         ~LPFC_STOP_IOCB_EVENT;
1960                                 psli->ring[(psli->fcp_ring)].flag &=
1961                                         ~LPFC_STOP_IOCB_EVENT;
1962                                 psli->ring[(psli->next_ring)].flag &=
1963                                         ~LPFC_STOP_IOCB_EVENT;
1964                                 phba->hba_state = LPFC_HBA_READY;
1965                         }
1966                 }
1967         } else {
1968                 /* Next do PLOGIs - if any */
1969                 num_sent = lpfc_els_disc_plogi(phba);
1970
1971                 if (num_sent)
1972                         return;
1973
1974                 if (phba->fc_flag & FC_RSCN_MODE) {
1975                         /* Check to see if more RSCNs came in while we
1976                          * were processing this one.
1977                          */
1978                         if ((phba->fc_rscn_id_cnt == 0) &&
1979                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1980                                 spin_lock_irq(phba->host->host_lock);
1981                                 phba->fc_flag &= ~FC_RSCN_MODE;
1982                                 spin_unlock_irq(phba->host->host_lock);
1983                         } else
1984                                 lpfc_els_handle_rscn(phba);
1985                 }
1986         }
1987         return;
1988 }
1989
1990 /*
1991  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
1992  *  ring the match the sppecified nodelist.
1993  */
1994 static void
1995 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1996 {
1997         LIST_HEAD(completions);
1998         struct lpfc_sli *psli;
1999         IOCB_t     *icmd;
2000         struct lpfc_iocbq    *iocb, *next_iocb;
2001         struct lpfc_sli_ring *pring;
2002
2003         psli = &phba->sli;
2004         pring = &psli->ring[LPFC_ELS_RING];
2005
2006         /* Error matching iocb on txq or txcmplq
2007          * First check the txq.
2008          */
2009         spin_lock_irq(phba->host->host_lock);
2010         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2011                 if (iocb->context1 != ndlp) {
2012                         continue;
2013                 }
2014                 icmd = &iocb->iocb;
2015                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2016                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2017
2018                         list_move_tail(&iocb->list, &completions);
2019                         pring->txq_cnt--;
2020                 }
2021         }
2022
2023         /* Next check the txcmplq */
2024         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2025                 if (iocb->context1 != ndlp) {
2026                         continue;
2027                 }
2028                 icmd = &iocb->iocb;
2029                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2030                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2031                         lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2032                 }
2033         }
2034         spin_unlock_irq(phba->host->host_lock);
2035
2036         while (!list_empty(&completions)) {
2037                 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
2038                 list_del(&iocb->list);
2039
2040                 if (iocb->iocb_cmpl) {
2041                         icmd = &iocb->iocb;
2042                         icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2043                         icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2044                         (iocb->iocb_cmpl) (phba, iocb, iocb);
2045                 } else
2046                         lpfc_sli_release_iocbq(phba, iocb);
2047         }
2048
2049         return;
2050 }
2051
2052 void
2053 lpfc_disc_flush_list(struct lpfc_hba * phba)
2054 {
2055         struct lpfc_nodelist *ndlp, *next_ndlp;
2056
2057         if (phba->fc_plogi_cnt) {
2058                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2059                                         nlp_listp) {
2060                         lpfc_free_tx(phba, ndlp);
2061                         lpfc_nlp_remove(phba, ndlp);
2062                 }
2063         }
2064         if (phba->fc_adisc_cnt) {
2065                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2066                                         nlp_listp) {
2067                         lpfc_free_tx(phba, ndlp);
2068                         lpfc_nlp_remove(phba, ndlp);
2069                 }
2070         }
2071         return;
2072 }
2073
2074 /*****************************************************************************/
2075 /*
2076  * NAME:     lpfc_disc_timeout
2077  *
2078  * FUNCTION: Fibre Channel driver discovery timeout routine.
2079  *
2080  * EXECUTION ENVIRONMENT: interrupt only
2081  *
2082  * CALLED FROM:
2083  *      Timer function
2084  *
2085  * RETURNS:
2086  *      none
2087  */
2088 /*****************************************************************************/
2089 void
2090 lpfc_disc_timeout(unsigned long ptr)
2091 {
2092         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2093         unsigned long flags = 0;
2094
2095         if (unlikely(!phba))
2096                 return;
2097
2098         spin_lock_irqsave(phba->host->host_lock, flags);
2099         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2100                 phba->work_hba_events |= WORKER_DISC_TMO;
2101                 if (phba->work_wait)
2102                         wake_up(phba->work_wait);
2103         }
2104         spin_unlock_irqrestore(phba->host->host_lock, flags);
2105         return;
2106 }
2107
2108 static void
2109 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2110 {
2111         struct lpfc_sli *psli;
2112         struct lpfc_nodelist *ndlp, *next_ndlp;
2113         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2114         int rc, clrlaerr = 0;
2115
2116         if (unlikely(!phba))
2117                 return;
2118
2119         if (!(phba->fc_flag & FC_DISC_TMO))
2120                 return;
2121
2122         psli = &phba->sli;
2123
2124         spin_lock_irq(phba->host->host_lock);
2125         phba->fc_flag &= ~FC_DISC_TMO;
2126         spin_unlock_irq(phba->host->host_lock);
2127
2128         switch (phba->hba_state) {
2129
2130         case LPFC_LOCAL_CFG_LINK:
2131         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2132                 /* FAN timeout */
2133                 lpfc_printf_log(phba,
2134                                  KERN_WARNING,
2135                                  LOG_DISCOVERY,
2136                                  "%d:0221 FAN timeout\n",
2137                                  phba->brd_no);
2138
2139                 /* Start discovery by sending FLOGI, clean up old rpis */
2140                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2141                                         nlp_listp) {
2142                         if (ndlp->nlp_type & NLP_FABRIC) {
2143                                 /* Clean up the ndlp on Fabric connections */
2144                                 lpfc_drop_node(phba, ndlp);
2145                         } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2146                                 /* Fail outstanding IO now since device
2147                                  * is marked for PLOGI.
2148                                  */
2149                                 lpfc_unreg_rpi(phba, ndlp);
2150                         }
2151                 }
2152                 phba->hba_state = LPFC_FLOGI;
2153                 lpfc_set_disctmo(phba);
2154                 lpfc_initial_flogi(phba);
2155                 break;
2156
2157         case LPFC_FLOGI:
2158         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2159                 /* Initial FLOGI timeout */
2160                 lpfc_printf_log(phba,
2161                                  KERN_ERR,
2162                                  LOG_DISCOVERY,
2163                                  "%d:0222 Initial FLOGI timeout\n",
2164                                  phba->brd_no);
2165
2166                 /* Assume no Fabric and go on with discovery.
2167                  * Check for outstanding ELS FLOGI to abort.
2168                  */
2169
2170                 /* FLOGI failed, so just use loop map to make discovery list */
2171                 lpfc_disc_list_loopmap(phba);
2172
2173                 /* Start discovery */
2174                 lpfc_disc_start(phba);
2175                 break;
2176
2177         case LPFC_FABRIC_CFG_LINK:
2178         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2179            NameServer login */
2180                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2181                                 "%d:0223 Timeout while waiting for NameServer "
2182                                 "login\n", phba->brd_no);
2183
2184                 /* Next look for NameServer ndlp */
2185                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2186                 if (ndlp)
2187                         lpfc_nlp_remove(phba, ndlp);
2188                 /* Start discovery */
2189                 lpfc_disc_start(phba);
2190                 break;
2191
2192         case LPFC_NS_QRY:
2193         /* Check for wait for NameServer Rsp timeout */
2194                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2195                                 "%d:0224 NameServer Query timeout "
2196                                 "Data: x%x x%x\n",
2197                                 phba->brd_no,
2198                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2199
2200                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2201                                                                 NameServer_DID);
2202                 if (ndlp) {
2203                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2204                                 /* Try it one more time */
2205                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2206                                 if (rc == 0)
2207                                         break;
2208                         }
2209                         phba->fc_ns_retry = 0;
2210                 }
2211
2212                 /* Nothing to authenticate, so CLEAR_LA right now */
2213                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2214                 if (!clearlambox) {
2215                         clrlaerr = 1;
2216                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2217                                         "%d:0226 Device Discovery "
2218                                         "completion error\n",
2219                                         phba->brd_no);
2220                         phba->hba_state = LPFC_HBA_ERROR;
2221                         break;
2222                 }
2223
2224                 phba->hba_state = LPFC_CLEAR_LA;
2225                 lpfc_clear_la(phba, clearlambox);
2226                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2227                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2228                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2229                 if (rc == MBX_NOT_FINISHED) {
2230                         mempool_free(clearlambox, phba->mbox_mem_pool);
2231                         clrlaerr = 1;
2232                         break;
2233                 }
2234
2235                 /* Setup and issue mailbox INITIALIZE LINK command */
2236                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2237                 if (!initlinkmbox) {
2238                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2239                                         "%d:0206 Device Discovery "
2240                                         "completion error\n",
2241                                         phba->brd_no);
2242                         phba->hba_state = LPFC_HBA_ERROR;
2243                         break;
2244                 }
2245
2246                 lpfc_linkdown(phba);
2247                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2248                                phba->cfg_link_speed);
2249                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2250                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2251                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2252                 if (rc == MBX_NOT_FINISHED)
2253                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2254
2255                 break;
2256
2257         case LPFC_DISC_AUTH:
2258         /* Node Authentication timeout */
2259                 lpfc_printf_log(phba,
2260                                  KERN_ERR,
2261                                  LOG_DISCOVERY,
2262                                  "%d:0227 Node Authentication timeout\n",
2263                                  phba->brd_no);
2264                 lpfc_disc_flush_list(phba);
2265                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2266                 if (!clearlambox) {
2267                         clrlaerr = 1;
2268                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2269                                         "%d:0207 Device Discovery "
2270                                         "completion error\n",
2271                                         phba->brd_no);
2272                         phba->hba_state = LPFC_HBA_ERROR;
2273                         break;
2274                 }
2275                 phba->hba_state = LPFC_CLEAR_LA;
2276                 lpfc_clear_la(phba, clearlambox);
2277                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2278                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2279                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2280                 if (rc == MBX_NOT_FINISHED) {
2281                         mempool_free(clearlambox, phba->mbox_mem_pool);
2282                         clrlaerr = 1;
2283                 }
2284                 break;
2285
2286         case LPFC_CLEAR_LA:
2287         /* CLEAR LA timeout */
2288                 lpfc_printf_log(phba,
2289                                  KERN_ERR,
2290                                  LOG_DISCOVERY,
2291                                  "%d:0228 CLEAR LA timeout\n",
2292                                  phba->brd_no);
2293                 clrlaerr = 1;
2294                 break;
2295
2296         case LPFC_HBA_READY:
2297                 if (phba->fc_flag & FC_RSCN_MODE) {
2298                         lpfc_printf_log(phba,
2299                                         KERN_ERR,
2300                                         LOG_DISCOVERY,
2301                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2302                                         phba->brd_no,
2303                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2304
2305                         /* Cleanup any outstanding ELS commands */
2306                         lpfc_els_flush_cmd(phba);
2307
2308                         lpfc_els_flush_rscn(phba);
2309                         lpfc_disc_flush_list(phba);
2310                 }
2311                 break;
2312         }
2313
2314         if (clrlaerr) {
2315                 lpfc_disc_flush_list(phba);
2316                 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2317                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2318                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2319                 phba->hba_state = LPFC_HBA_READY;
2320         }
2321
2322         return;
2323 }
2324
2325 /*
2326  * This routine handles processing a NameServer REG_LOGIN mailbox
2327  * command upon completion. It is setup in the LPFC_MBOXQ
2328  * as the completion routine when the command is
2329  * handed off to the SLI layer.
2330  */
2331 void
2332 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2333 {
2334         struct lpfc_sli *psli;
2335         MAILBOX_t *mb;
2336         struct lpfc_dmabuf *mp;
2337         struct lpfc_nodelist *ndlp;
2338
2339         psli = &phba->sli;
2340         mb = &pmb->mb;
2341
2342         ndlp = (struct lpfc_nodelist *) pmb->context2;
2343         mp = (struct lpfc_dmabuf *) (pmb->context1);
2344
2345         pmb->context1 = NULL;
2346
2347         ndlp->nlp_rpi = mb->un.varWords[0];
2348         ndlp->nlp_type |= NLP_FABRIC;
2349         lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
2350
2351         /* Start issuing Fabric-Device Management Interface (FDMI)
2352          * command to 0xfffffa (FDMI well known port)
2353          */
2354         if (phba->cfg_fdmi_on == 1) {
2355                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2356         } else {
2357                 /*
2358                  * Delay issuing FDMI command if fdmi-on=2
2359                  * (supporting RPA/hostnmae)
2360                  */
2361                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2362         }
2363
2364         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2365         kfree(mp);
2366         mempool_free( pmb, phba->mbox_mem_pool);
2367
2368         return;
2369 }
2370
2371 /*
2372  * This routine looks up the ndlp  lists
2373  * for the given RPI. If rpi found
2374  * it return the node list pointer
2375  * else return NULL.
2376  */
2377 struct lpfc_nodelist *
2378 __lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2379 {
2380         struct lpfc_nodelist *ndlp;
2381         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2382                                     &phba->fc_nlpmap_list,
2383                                     &phba->fc_plogi_list,
2384                                     &phba->fc_adisc_list,
2385                                     &phba->fc_reglogin_list};
2386         int i;
2387
2388         for (i = 0; i < ARRAY_SIZE(lists); i++ )
2389                 list_for_each_entry(ndlp, lists[i], nlp_listp)
2390                         if (ndlp->nlp_rpi == rpi) {
2391                                 return ndlp;
2392                         }
2393         return NULL;
2394 }
2395
2396 struct lpfc_nodelist *
2397 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2398 {
2399         struct lpfc_nodelist *ndlp;
2400
2401         spin_lock_irq(phba->host->host_lock);
2402         ndlp = __lpfc_findnode_rpi(phba, rpi);
2403         spin_unlock_irq(phba->host->host_lock);
2404         return ndlp;
2405 }
2406
2407 /*
2408  * This routine looks up the ndlp  lists
2409  * for the given WWPN. If WWPN found
2410  * it return the node list pointer
2411  * else return NULL.
2412  */
2413 struct lpfc_nodelist *
2414 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2415                    struct lpfc_name * wwpn)
2416 {
2417         struct lpfc_nodelist *ndlp;
2418         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2419                                     &phba->fc_nlpmap_list,
2420                                     &phba->fc_npr_list,
2421                                     &phba->fc_plogi_list,
2422                                     &phba->fc_adisc_list,
2423                                     &phba->fc_reglogin_list,
2424                                     &phba->fc_prli_list};
2425         uint32_t search[]={NLP_SEARCH_UNMAPPED,
2426                            NLP_SEARCH_MAPPED,
2427                            NLP_SEARCH_NPR,
2428                            NLP_SEARCH_PLOGI,
2429                            NLP_SEARCH_ADISC,
2430                            NLP_SEARCH_REGLOGIN,
2431                            NLP_SEARCH_PRLI};
2432         int i;
2433
2434         spin_lock_irq(phba->host->host_lock);
2435         for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2436                 if (!(order & search[i]))
2437                         continue;
2438                 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2439                         if (memcmp(&ndlp->nlp_portname, wwpn,
2440                                    sizeof(struct lpfc_name)) == 0) {
2441                                 spin_unlock_irq(phba->host->host_lock);
2442                                 return ndlp;
2443                         }
2444                 }
2445         }
2446         spin_unlock_irq(phba->host->host_lock);
2447         return NULL;
2448 }
2449
2450 void
2451 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2452                  uint32_t did)
2453 {
2454         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2455         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2456         init_timer(&ndlp->nlp_delayfunc);
2457         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2458         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2459         ndlp->nlp_DID = did;
2460         ndlp->nlp_phba = phba;
2461         ndlp->nlp_sid = NLP_NO_SID;
2462         return;
2463 }