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 static void
  60 lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
  61 {
  62         uint8_t *name = (uint8_t *)&ndlp->nlp_portname;
  63         int warn_on = 0;
  64
  65         spin_lock_irq(phba->host->host_lock);
  66         if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
  67                 spin_unlock_irq(phba->host->host_lock);
  68                 return;
  69         }
  70
  71         /*
  72          * If a discovery event readded nodev_timer after timer
  73          * firing and before processing the timer, cancel the
  74          * nlp_tmofunc.
  75          */
  76         spin_unlock_irq(phba->host->host_lock);
  77         del_timer_sync(&ndlp->nlp_tmofunc);
  78         spin_lock_irq(phba->host->host_lock);
  79
  80         ndlp->nlp_flag &= ~NLP_NODEV_TMO;
  81
  82         if (ndlp->nlp_sid != NLP_NO_SID) {
  83                 warn_on = 1;
  84                 /* flush the target */
  85                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
  86                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
  87         }
  88         spin_unlock_irq(phba->host->host_lock);
  89
  90         if (warn_on) {
  91                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
  92                                 "%d:0203 Nodev timeout on "
  93                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
  94                                 "NPort x%x Data: x%x x%x x%x\n",
  95                                 phba->brd_no,
  96                                 *name, *(name+1), *(name+2), *(name+3),
  97                                 *(name+4), *(name+5), *(name+6), *(name+7),
  98                                 ndlp->nlp_DID, ndlp->nlp_flag,
  99                                 ndlp->nlp_state, ndlp->nlp_rpi);
 100         } else {
 101                 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 102                                 "%d:0204 Nodev timeout on "
 103                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 104                                 "NPort x%x Data: x%x x%x x%x\n",
 105                                 phba->brd_no,
 106                                 *name, *(name+1), *(name+2), *(name+3),
 107                                 *(name+4), *(name+5), *(name+6), *(name+7),
 108                                 ndlp->nlp_DID, ndlp->nlp_flag,
 109                                 ndlp->nlp_state, ndlp->nlp_rpi);
 110         }
 111
 112         lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
 113         return;
 114 }
 115
 116 static void
 117 lpfc_work_list_done(struct lpfc_hba * phba)
 118 {
 119         struct lpfc_work_evt  *evtp = NULL;
 120         struct lpfc_nodelist  *ndlp;
 121         int free_evt;
 122
 123         spin_lock_irq(phba->host->host_lock);
 124         while(!list_empty(&phba->work_list)) {
 125                 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
 126                                  evt_listp);
 127                 spin_unlock_irq(phba->host->host_lock);
 128                 free_evt = 1;
 129                 switch (evtp->evt) {
 130                 case LPFC_EVT_NODEV_TMO:
 131                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 132                         lpfc_process_nodev_timeout(phba, ndlp);
 133                         free_evt = 0;
 134                         break;
 135                 case LPFC_EVT_ELS_RETRY:
 136                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 137                         lpfc_els_retry_delay_handler(ndlp);
 138                         free_evt = 0;
 139                         break;
 140                 case LPFC_EVT_ONLINE:
 141                         if (phba->hba_state < LPFC_LINK_DOWN)
 142                                 *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
 143                         else
 144                                 *(int *)(evtp->evt_arg1)  = 0;
 145                         complete((struct completion *)(evtp->evt_arg2));
 146                         break;
 147                 case LPFC_EVT_OFFLINE:
 148                         if (phba->hba_state >= LPFC_LINK_DOWN)
 149                                 lpfc_offline(phba);
 150                         lpfc_sli_brdrestart(phba);
 151                         *(int *)(evtp->evt_arg1) =
 152                                 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
 153                         complete((struct completion *)(evtp->evt_arg2));
 154                         break;
 155                 case LPFC_EVT_WARM_START:
 156                         if (phba->hba_state >= LPFC_LINK_DOWN)
 157                                 lpfc_offline(phba);
 158                         lpfc_sli_brdreset(phba);
 159                         lpfc_hba_down_post(phba);
 160                         *(int *)(evtp->evt_arg1) =
 161                                 lpfc_sli_brdready(phba, HS_MBRDY);
 162                         complete((struct completion *)(evtp->evt_arg2));
 163                         break;
 164                 case LPFC_EVT_KILL:
 165                         if (phba->hba_state >= LPFC_LINK_DOWN)
 166                                 lpfc_offline(phba);
 167                         *(int *)(evtp->evt_arg1)  = lpfc_sli_brdkill(phba);
 168                         complete((struct completion *)(evtp->evt_arg2));
 169                         break;
 170                 }
 171                 if (free_evt)
 172                         kfree(evtp);
 173                 spin_lock_irq(phba->host->host_lock);
 174         }
 175         spin_unlock_irq(phba->host->host_lock);
 176
 177 }
 178
 179 static void
 180 lpfc_work_done(struct lpfc_hba * phba)
 181 {
 182         struct lpfc_sli_ring *pring;
 183         int i;
 184         uint32_t ha_copy;
 185         uint32_t control;
 186         uint32_t work_hba_events;
 187
 188         spin_lock_irq(phba->host->host_lock);
 189         ha_copy = phba->work_ha;
 190         phba->work_ha = 0;
 191         work_hba_events=phba->work_hba_events;
 192         spin_unlock_irq(phba->host->host_lock);
 193
 194         if (ha_copy & HA_ERATT)
 195                 lpfc_handle_eratt(phba);
 196
 197         if (ha_copy & HA_MBATT)
 198                 lpfc_sli_handle_mb_event(phba);
 199
 200         if (ha_copy & HA_LATT)
 201                 lpfc_handle_latt(phba);
 202
 203         if (work_hba_events & WORKER_DISC_TMO)
 204                 lpfc_disc_timeout_handler(phba);
 205
 206         if (work_hba_events & WORKER_ELS_TMO)
 207                 lpfc_els_timeout_handler(phba);
 208
 209         if (work_hba_events & WORKER_MBOX_TMO)
 210                 lpfc_mbox_timeout_handler(phba);
 211
 212         if (work_hba_events & WORKER_FDMI_TMO)
 213                 lpfc_fdmi_tmo_handler(phba);
 214
 215         spin_lock_irq(phba->host->host_lock);
 216         phba->work_hba_events &= ~work_hba_events;
 217         spin_unlock_irq(phba->host->host_lock);
 218
 219         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
 220                 pring = &phba->sli.ring[i];
 221                 if ((ha_copy & HA_RXATT)
 222                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
 223                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
 224                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
 225                         } else {
 226                                 lpfc_sli_handle_slow_ring_event(phba, pring,
 227                                                                 (ha_copy &
 228                                                                  HA_RXMASK));
 229                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
 230                         }
 231                         /*
 232                          * Turn on Ring interrupts
 233                          */
 234                         spin_lock_irq(phba->host->host_lock);
 235                         control = readl(phba->HCregaddr);
 236                         control |= (HC_R0INT_ENA << i);
 237                         writel(control, phba->HCregaddr);
 238                         readl(phba->HCregaddr); /* flush */
 239                         spin_unlock_irq(phba->host->host_lock);
 240                 }
 241         }
 242
 243         lpfc_work_list_done (phba);
 244
 245 }
 246
 247 static int
 248 check_work_wait_done(struct lpfc_hba *phba) {
 249
 250         spin_lock_irq(phba->host->host_lock);
 251         if (phba->work_ha ||
 252             phba->work_hba_events ||
 253             (!list_empty(&phba->work_list)) ||
 254             kthread_should_stop()) {
 255                 spin_unlock_irq(phba->host->host_lock);
 256                 return 1;
 257         } else {
 258                 spin_unlock_irq(phba->host->host_lock);
 259                 return 0;
 260         }
 261 }
 262
 263 int
 264 lpfc_do_work(void *p)
 265 {
 266         struct lpfc_hba *phba = p;
 267         int rc;
 268         DECLARE_WAIT_QUEUE_HEAD(work_waitq);
 269
 270         set_user_nice(current, -20);
 271         phba->work_wait = &work_waitq;
 272
 273         while (1) {
 274
 275                 rc = wait_event_interruptible(work_waitq,
 276                                                 check_work_wait_done(phba));
 277                 BUG_ON(rc);
 278
 279                 if (kthread_should_stop())
 280                         break;
 281
 282                 lpfc_work_done(phba);
 283
 284         }
 285         phba->work_wait = NULL;
 286         return 0;
 287 }
 288
 289 /*
 290  * This is only called to handle FC worker events. Since this a rare
 291  * occurance, we allocate a struct lpfc_work_evt structure here instead of
 292  * embedding it in the IOCB.
 293  */
 294 int
 295 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
 296                       uint32_t evt)
 297 {
 298         struct lpfc_work_evt  *evtp;
 299
 300         /*
 301          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
 302          * be queued to worker thread for processing
 303          */
 304         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
 305         if (!evtp)
 306                 return 0;
 307
 308         evtp->evt_arg1  = arg1;
 309         evtp->evt_arg2  = arg2;
 310         evtp->evt       = evt;
 311
 312         list_add_tail(&evtp->evt_listp, &phba->work_list);
 313         spin_lock_irq(phba->host->host_lock);
 314         if (phba->work_wait)
 315                 wake_up(phba->work_wait);
 316         spin_unlock_irq(phba->host->host_lock);
 317
 318         return 1;
 319 }
 320
 321 int
 322 lpfc_linkdown(struct lpfc_hba * phba)
 323 {
 324         struct lpfc_sli       *psli;
 325         struct lpfc_nodelist  *ndlp, *next_ndlp;
 326         struct list_head *listp, *node_list[7];
 327         LPFC_MBOXQ_t     *mb;
 328         int               rc, i;
 329
 330         psli = &phba->sli;
 331         /* sysfs or selective reset may call this routine to clean up */
 332         if (phba->hba_state >= LPFC_LINK_DOWN) {
 333                 if (phba->hba_state == LPFC_LINK_DOWN)
 334                         return 0;
 335
 336                 spin_lock_irq(phba->host->host_lock);
 337                 phba->hba_state = LPFC_LINK_DOWN;
 338                 spin_unlock_irq(phba->host->host_lock);
 339         }
 340
 341         /* Clean up any firmware default rpi's */
 342         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 343                 lpfc_unreg_did(phba, 0xffffffff, mb);
 344                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 345                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 346                     == MBX_NOT_FINISHED) {
 347                         mempool_free( mb, phba->mbox_mem_pool);
 348                 }
 349         }
 350
 351         /* Cleanup any outstanding RSCN activity */
 352         lpfc_els_flush_rscn(phba);
 353
 354         /* Cleanup any outstanding ELS commands */
 355         lpfc_els_flush_cmd(phba);
 356
 357         /* Issue a LINK DOWN event to all nodes */
 358         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
 359         node_list[1] = &phba->fc_nlpmap_list;
 360         node_list[2] = &phba->fc_nlpunmap_list;
 361         node_list[3] = &phba->fc_prli_list;
 362         node_list[4] = &phba->fc_reglogin_list;
 363         node_list[5] = &phba->fc_adisc_list;
 364         node_list[6] = &phba->fc_plogi_list;
 365         for (i = 0; i < 7; i++) {
 366                 listp = node_list[i];
 367                 if (list_empty(listp))
 368                         continue;
 369
 370                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 371
 372                         rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 373                                              NLP_EVT_DEVICE_RECOVERY);
 374
 375                         /* Check config parameter use-adisc or FCP-2 */
 376                         if ((rc != NLP_STE_FREED_NODE) &&
 377                                 (phba->cfg_use_adisc == 0) &&
 378                                 !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
 379                                 /* We know we will have to relogin, so
 380                                  * unreglogin the rpi right now to fail
 381                                  * any outstanding I/Os quickly.
 382                                  */
 383                                 lpfc_unreg_rpi(phba, ndlp);
 384                         }
 385                 }
 386         }
 387
 388         /* free any ndlp's on unused list */
 389         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 390                                 nlp_listp) {
 391                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 392         }
 393
 394         /* Setup myDID for link up if we are in pt2pt mode */
 395         if (phba->fc_flag & FC_PT2PT) {
 396                 phba->fc_myDID = 0;
 397                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 398                         lpfc_config_link(phba, mb);
 399                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 400                         if (lpfc_sli_issue_mbox
 401                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 402                             == MBX_NOT_FINISHED) {
 403                                 mempool_free( mb, phba->mbox_mem_pool);
 404                         }
 405                 }
 406                 spin_lock_irq(phba->host->host_lock);
 407                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
 408                 spin_unlock_irq(phba->host->host_lock);
 409         }
 410         spin_lock_irq(phba->host->host_lock);
 411         phba->fc_flag &= ~FC_LBIT;
 412         spin_unlock_irq(phba->host->host_lock);
 413
 414         /* Turn off discovery timer if its running */
 415         lpfc_can_disctmo(phba);
 416
 417         /* Must process IOCBs on all rings to handle ABORTed I/Os */
 418         return 0;
 419 }
 420
 421 static int
 422 lpfc_linkup(struct lpfc_hba * phba)
 423 {
 424         struct lpfc_nodelist *ndlp, *next_ndlp;
 425         struct list_head *listp, *node_list[7];
 426         int i;
 427
 428         spin_lock_irq(phba->host->host_lock);
 429         phba->hba_state = LPFC_LINK_UP;
 430         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
 431                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
 432         phba->fc_flag |= FC_NDISC_ACTIVE;
 433         phba->fc_ns_retry = 0;
 434         spin_unlock_irq(phba->host->host_lock);
 435
 436
 437         node_list[0] = &phba->fc_plogi_list;
 438         node_list[1] = &phba->fc_adisc_list;
 439         node_list[2] = &phba->fc_reglogin_list;
 440         node_list[3] = &phba->fc_prli_list;
 441         node_list[4] = &phba->fc_nlpunmap_list;
 442         node_list[5] = &phba->fc_nlpmap_list;
 443         node_list[6] = &phba->fc_npr_list;
 444         for (i = 0; i < 7; i++) {
 445                 listp = node_list[i];
 446                 if (list_empty(listp))
 447                         continue;
 448
 449                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 450                         if (phba->fc_flag & FC_LBIT) {
 451                                 if (ndlp->nlp_type & NLP_FABRIC) {
 452                                         /* On Linkup its safe to clean up the
 453                                          * ndlp from Fabric connections.
 454                                          */
 455                                         lpfc_nlp_list(phba, ndlp,
 456                                                         NLP_UNUSED_LIST);
 457                                 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
 458                                         /* Fail outstanding IO now since device
 459                                          * is marked for PLOGI.
 460                                          */
 461                                         lpfc_unreg_rpi(phba, ndlp);
 462                                 }
 463                         }
 464                 }
 465         }
 466
 467         /* free any ndlp's on unused list */
 468         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 469                                 nlp_listp) {
 470                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 471         }
 472
 473         return 0;
 474 }
 475
 476 /*
 477  * This routine handles processing a CLEAR_LA mailbox
 478  * command upon completion. It is setup in the LPFC_MBOXQ
 479  * as the completion routine when the command is
 480  * handed off to the SLI layer.
 481  */
 482 void
 483 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 484 {
 485         struct lpfc_sli *psli;
 486         MAILBOX_t *mb;
 487         uint32_t control;
 488
 489         psli = &phba->sli;
 490         mb = &pmb->mb;
 491         /* Since we don't do discovery right now, turn these off here */
 492         psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 493         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 494         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 495
 496         /* Check for error */
 497         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
 498                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
 499                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 500                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
 501                                 "state x%x\n",
 502                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 503
 504                 phba->hba_state = LPFC_HBA_ERROR;
 505                 goto out;
 506         }
 507
 508         if (phba->fc_flag & FC_ABORT_DISCOVERY)
 509                 goto out;
 510
 511         phba->num_disc_nodes = 0;
 512         /* go thru NPR list and issue ELS PLOGIs */
 513         if (phba->fc_npr_cnt) {
 514                 lpfc_els_disc_plogi(phba);
 515         }
 516
 517         if (!phba->num_disc_nodes) {
 518                 spin_lock_irq(phba->host->host_lock);
 519                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 520                 spin_unlock_irq(phba->host->host_lock);
 521         }
 522
 523         phba->hba_state = LPFC_HBA_READY;
 524
 525 out:
 526         /* Device Discovery completes */
 527         lpfc_printf_log(phba,
 528                          KERN_INFO,
 529                          LOG_DISCOVERY,
 530                          "%d:0225 Device Discovery completes\n",
 531                          phba->brd_no);
 532
 533         mempool_free( pmb, phba->mbox_mem_pool);
 534
 535         spin_lock_irq(phba->host->host_lock);
 536         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
 537         if (phba->fc_flag & FC_ESTABLISH_LINK) {
 538                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
 539         }
 540         spin_unlock_irq(phba->host->host_lock);
 541
 542         del_timer_sync(&phba->fc_estabtmo);
 543
 544         lpfc_can_disctmo(phba);
 545
 546         /* turn on Link Attention interrupts */
 547         spin_lock_irq(phba->host->host_lock);
 548         psli->sli_flag |= LPFC_PROCESS_LA;
 549         control = readl(phba->HCregaddr);
 550         control |= HC_LAINT_ENA;
 551         writel(control, phba->HCregaddr);
 552         readl(phba->HCregaddr); /* flush */
 553         spin_unlock_irq(phba->host->host_lock);
 554
 555         return;
 556 }
 557
 558 static void
 559 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 560 {
 561         struct lpfc_sli *psli = &phba->sli;
 562         int rc;
 563
 564         if (pmb->mb.mbxStatus)
 565                 goto out;
 566
 567         mempool_free(pmb, phba->mbox_mem_pool);
 568
 569         if (phba->fc_topology == TOPOLOGY_LOOP &&
 570                 phba->fc_flag & FC_PUBLIC_LOOP &&
 571                  !(phba->fc_flag & FC_LBIT)) {
 572                         /* Need to wait for FAN - use discovery timer
 573                          * for timeout.  hba_state is identically
 574                          * LPFC_LOCAL_CFG_LINK while waiting for FAN
 575                          */
 576                         lpfc_set_disctmo(phba);
 577                         return;
 578                 }
 579
 580         /* Start discovery by sending a FLOGI. hba_state is identically
 581          * LPFC_FLOGI while waiting for FLOGI cmpl
 582          */
 583         phba->hba_state = LPFC_FLOGI;
 584         lpfc_set_disctmo(phba);
 585         lpfc_initial_flogi(phba);
 586         return;
 587
 588 out:
 589         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 590                         "%d:0306 CONFIG_LINK mbxStatus error x%x "
 591                         "HBA state x%x\n",
 592                         phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
 593
 594         lpfc_linkdown(phba);
 595
 596         phba->hba_state = LPFC_HBA_ERROR;
 597
 598         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 599                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
 600                         phba->brd_no, phba->hba_state);
 601
 602         lpfc_clear_la(phba, pmb);
 603         pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 604         rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 605         if (rc == MBX_NOT_FINISHED) {
 606                 mempool_free(pmb, phba->mbox_mem_pool);
 607                 lpfc_disc_flush_list(phba);
 608                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 609                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 610                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 611                 phba->hba_state = LPFC_HBA_READY;
 612         }
 613         return;
 614 }
 615
 616 static void
 617 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 618 {
 619         struct lpfc_sli *psli = &phba->sli;
 620         MAILBOX_t *mb = &pmb->mb;
 621         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
 622
 623
 624         /* Check for error */
 625         if (mb->mbxStatus) {
 626                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
 627                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 628                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
 629                                 "hba state x%x>\n",
 630                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 631
 632                 lpfc_linkdown(phba);
 633                 phba->hba_state = LPFC_HBA_ERROR;
 634                 goto out;
 635         }
 636
 637         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 638                sizeof (struct serv_parm));
 639         memcpy((uint8_t *) & phba->fc_nodename,
 640                (uint8_t *) & phba->fc_sparam.nodeName,
 641                sizeof (struct lpfc_name));
 642         memcpy((uint8_t *) & phba->fc_portname,
 643                (uint8_t *) & phba->fc_sparam.portName,
 644                sizeof (struct lpfc_name));
 645         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 646         kfree(mp);
 647         mempool_free( pmb, phba->mbox_mem_pool);
 648         return;
 649
 650 out:
 651         pmb->context1 = NULL;
 652         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 653         kfree(mp);
 654         if (phba->hba_state != LPFC_CLEAR_LA) {
 655                 lpfc_clear_la(phba, pmb);
 656                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 657                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 658                     == MBX_NOT_FINISHED) {
 659                         mempool_free( pmb, phba->mbox_mem_pool);
 660                         lpfc_disc_flush_list(phba);
 661                         psli->ring[(psli->ip_ring)].flag &=
 662                             ~LPFC_STOP_IOCB_EVENT;
 663                         psli->ring[(psli->fcp_ring)].flag &=
 664                             ~LPFC_STOP_IOCB_EVENT;
 665                         psli->ring[(psli->next_ring)].flag &=
 666                             ~LPFC_STOP_IOCB_EVENT;
 667                         phba->hba_state = LPFC_HBA_READY;
 668                 }
 669         } else {
 670                 mempool_free( pmb, phba->mbox_mem_pool);
 671         }
 672         return;
 673 }
 674
 675 static void
 676 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
 677 {
 678         int i;
 679         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
 680         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 681         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 682
 683         spin_lock_irq(phba->host->host_lock);
 684         switch (la->UlnkSpeed) {
 685                 case LA_1GHZ_LINK:
 686                         phba->fc_linkspeed = LA_1GHZ_LINK;
 687                         break;
 688                 case LA_2GHZ_LINK:
 689                         phba->fc_linkspeed = LA_2GHZ_LINK;
 690                         break;
 691                 case LA_4GHZ_LINK:
 692                         phba->fc_linkspeed = LA_4GHZ_LINK;
 693                         break;
 694                 default:
 695                         phba->fc_linkspeed = LA_UNKNW_LINK;
 696                         break;
 697         }
 698
 699         phba->fc_topology = la->topology;
 700
 701         if (phba->fc_topology == TOPOLOGY_LOOP) {
 702         /* Get Loop Map information */
 703
 704                 if (la->il)
 705                         phba->fc_flag |= FC_LBIT;
 706
 707                 phba->fc_myDID = la->granted_AL_PA;
 708                 i = la->un.lilpBde64.tus.f.bdeSize;
 709
 710                 if (i == 0) {
 711                         phba->alpa_map[0] = 0;
 712                 } else {
 713                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
 714                                 int numalpa, j, k;
 715                                 union {
 716                                         uint8_t pamap[16];
 717                                         struct {
 718                                                 uint32_t wd1;
 719                                                 uint32_t wd2;
 720                                                 uint32_t wd3;
 721                                                 uint32_t wd4;
 722                                         } pa;
 723                                 } un;
 724                                 numalpa = phba->alpa_map[0];
 725                                 j = 0;
 726                                 while (j < numalpa) {
 727                                         memset(un.pamap, 0, 16);
 728                                         for (k = 1; j < numalpa; k++) {
 729                                                 un.pamap[k - 1] =
 730                                                         phba->alpa_map[j + 1];
 731                                                 j++;
 732                                                 if (k == 16)
 733                                                         break;
 734                                         }
 735                                         /* Link Up Event ALPA map */
 736                                         lpfc_printf_log(phba,
 737                                                 KERN_WARNING,
 738                                                 LOG_LINK_EVENT,
 739                                                 "%d:1304 Link Up Event "
 740                                                 "ALPA map Data: x%x "
 741                                                 "x%x x%x x%x\n",
 742                                                 phba->brd_no,
 743                                                 un.pa.wd1, un.pa.wd2,
 744                                                 un.pa.wd3, un.pa.wd4);
 745                                 }
 746                         }
 747                 }
 748         } else {
 749                 phba->fc_myDID = phba->fc_pref_DID;
 750                 phba->fc_flag |= FC_LBIT;
 751         }
 752         spin_unlock_irq(phba->host->host_lock);
 753
 754         lpfc_linkup(phba);
 755         if (sparam_mbox) {
 756                 lpfc_read_sparam(phba, sparam_mbox);
 757                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
 758                 lpfc_sli_issue_mbox(phba, sparam_mbox,
 759                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 760         }
 761
 762         if (cfglink_mbox) {
 763                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
 764                 lpfc_config_link(phba, cfglink_mbox);
 765                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
 766                 lpfc_sli_issue_mbox(phba, cfglink_mbox,
 767                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 768         }
 769 }
 770
 771 static void
 772 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
 773         uint32_t control;
 774         struct lpfc_sli *psli = &phba->sli;
 775
 776         lpfc_linkdown(phba);
 777
 778         /* turn on Link Attention interrupts - no CLEAR_LA needed */
 779         spin_lock_irq(phba->host->host_lock);
 780         psli->sli_flag |= LPFC_PROCESS_LA;
 781         control = readl(phba->HCregaddr);
 782         control |= HC_LAINT_ENA;
 783         writel(control, phba->HCregaddr);
 784         readl(phba->HCregaddr); /* flush */
 785         spin_unlock_irq(phba->host->host_lock);
 786 }
 787
 788 /*
 789  * This routine handles processing a READ_LA mailbox
 790  * command upon completion. It is setup in the LPFC_MBOXQ
 791  * as the completion routine when the command is
 792  * handed off to the SLI layer.
 793  */
 794 void
 795 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 796 {
 797         READ_LA_VAR *la;
 798         MAILBOX_t *mb = &pmb->mb;
 799         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 800
 801         /* Check for error */
 802         if (mb->mbxStatus) {
 803                 lpfc_printf_log(phba,
 804                                 KERN_INFO,
 805                                 LOG_LINK_EVENT,
 806                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
 807                                 phba->brd_no,
 808                                 mb->mbxStatus, phba->hba_state);
 809                 lpfc_mbx_issue_link_down(phba);
 810                 phba->hba_state = LPFC_HBA_ERROR;
 811                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
 812         }
 813
 814         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
 815
 816         memcpy(&phba->alpa_map[0], mp->virt, 128);
 817
 818         spin_lock_irq(phba->host->host_lock);
 819         if (la->pb)
 820                 phba->fc_flag |= FC_BYPASSED_MODE;
 821         else
 822                 phba->fc_flag &= ~FC_BYPASSED_MODE;
 823         spin_unlock_irq(phba->host->host_lock);
 824
 825         if (((phba->fc_eventTag + 1) < la->eventTag) ||
 826              (phba->fc_eventTag == la->eventTag)) {
 827                 phba->fc_stat.LinkMultiEvent++;
 828                 if (la->attType == AT_LINK_UP) {
 829                         if (phba->fc_eventTag != 0)
 830                                 lpfc_linkdown(phba);
 831                 }
 832         }
 833
 834         phba->fc_eventTag = la->eventTag;
 835
 836         if (la->attType == AT_LINK_UP) {
 837                 phba->fc_stat.LinkUp++;
 838                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 839                                 "%d:1303 Link Up Event x%x received "
 840                                 "Data: x%x x%x x%x x%x\n",
 841                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 842                                 la->granted_AL_PA, la->UlnkSpeed,
 843                                 phba->alpa_map[0]);
 844                 lpfc_mbx_process_link_up(phba, la);
 845         } else {
 846                 phba->fc_stat.LinkDown++;
 847                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 848                                 "%d:1305 Link Down Event x%x received "
 849                                 "Data: x%x x%x x%x\n",
 850                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 851                                 phba->hba_state, phba->fc_flag);
 852                 lpfc_mbx_issue_link_down(phba);
 853         }
 854
 855 lpfc_mbx_cmpl_read_la_free_mbuf:
 856         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 857         kfree(mp);
 858         mempool_free(pmb, phba->mbox_mem_pool);
 859         return;
 860 }
 861
 862 /*
 863  * This routine handles processing a REG_LOGIN mailbox
 864  * command upon completion. It is setup in the LPFC_MBOXQ
 865  * as the completion routine when the command is
 866  * handed off to the SLI layer.
 867  */
 868 void
 869 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 870 {
 871         struct lpfc_sli *psli;
 872         MAILBOX_t *mb;
 873         struct lpfc_dmabuf *mp;
 874         struct lpfc_nodelist *ndlp;
 875
 876         psli = &phba->sli;
 877         mb = &pmb->mb;
 878
 879         ndlp = (struct lpfc_nodelist *) pmb->context2;
 880         mp = (struct lpfc_dmabuf *) (pmb->context1);
 881
 882         pmb->context1 = NULL;
 883
 884         /* Good status, call state machine */
 885         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 886         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 887         kfree(mp);
 888         mempool_free( pmb, phba->mbox_mem_pool);
 889
 890         return;
 891 }
 892
 893 /*
 894  * This routine handles processing a Fabric REG_LOGIN mailbox
 895  * command upon completion. It is setup in the LPFC_MBOXQ
 896  * as the completion routine when the command is
 897  * handed off to the SLI layer.
 898  */
 899 void
 900 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 901 {
 902         struct lpfc_sli *psli;
 903         MAILBOX_t *mb;
 904         struct lpfc_dmabuf *mp;
 905         struct lpfc_nodelist *ndlp;
 906         struct lpfc_nodelist *ndlp_fdmi;
 907
 908
 909         psli = &phba->sli;
 910         mb = &pmb->mb;
 911
 912         ndlp = (struct lpfc_nodelist *) pmb->context2;
 913         mp = (struct lpfc_dmabuf *) (pmb->context1);
 914
 915         if (mb->mbxStatus) {
 916                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 917                 kfree(mp);
 918                 mempool_free( pmb, phba->mbox_mem_pool);
 919                 mempool_free( ndlp, phba->nlp_mem_pool);
 920
 921                 /* FLOGI failed, so just use loop map to make discovery list */
 922                 lpfc_disc_list_loopmap(phba);
 923
 924                 /* Start discovery */
 925                 lpfc_disc_start(phba);
 926                 return;
 927         }
 928
 929         pmb->context1 = NULL;
 930
 931         ndlp->nlp_rpi = mb->un.varWords[0];
 932         ndlp->nlp_type |= NLP_FABRIC;
 933         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
 934         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
 935
 936         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 937                 /* This NPort has been assigned an NPort_ID by the fabric as a
 938                  * result of the completed fabric login.  Issue a State Change
 939                  * Registration (SCR) ELS request to the fabric controller
 940                  * (SCR_DID) so that this NPort gets RSCN events from the
 941                  * fabric.
 942                  */
 943                 lpfc_issue_els_scr(phba, SCR_DID, 0);
 944
 945                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
 946                 if (!ndlp) {
 947                         /* Allocate a new node instance. If the pool is empty,
 948                          * start the discovery process and skip the Nameserver
 949                          * login process.  This is attempted again later on.
 950                          * Otherwise, issue a Port Login (PLOGI) to NameServer.
 951                          */
 952                         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
 953                         if (!ndlp) {
 954                                 lpfc_disc_start(phba);
 955                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 956                                 kfree(mp);
 957                                 mempool_free( pmb, phba->mbox_mem_pool);
 958                                 return;
 959                         } else {
 960                                 lpfc_nlp_init(phba, ndlp, NameServer_DID);
 961                                 ndlp->nlp_type |= NLP_FABRIC;
 962                         }
 963                 }
 964                 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
 965                 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
 966                 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
 967                 if (phba->cfg_fdmi_on) {
 968                         ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
 969                                                                 GFP_KERNEL);
 970                         if (ndlp_fdmi) {
 971                                 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
 972                                 ndlp_fdmi->nlp_type |= NLP_FABRIC;
 973                                 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
 974                                 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
 975                         }
 976                 }
 977         }
 978
 979         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 980         kfree(mp);
 981         mempool_free( pmb, phba->mbox_mem_pool);
 982         return;
 983 }
 984
 985 /*
 986  * This routine handles processing a NameServer REG_LOGIN mailbox
 987  * command upon completion. It is setup in the LPFC_MBOXQ
 988  * as the completion routine when the command is
 989  * handed off to the SLI layer.
 990  */
 991 void
 992 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 993 {
 994         struct lpfc_sli *psli;
 995         MAILBOX_t *mb;
 996         struct lpfc_dmabuf *mp;
 997         struct lpfc_nodelist *ndlp;
 998
 999         psli = &phba->sli;
1000         mb = &pmb->mb;
1001
1002         ndlp = (struct lpfc_nodelist *) pmb->context2;
1003         mp = (struct lpfc_dmabuf *) (pmb->context1);
1004
1005         if (mb->mbxStatus) {
1006                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1007                 kfree(mp);
1008                 mempool_free( pmb, phba->mbox_mem_pool);
1009                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1010
1011                 /* RegLogin failed, so just use loop map to make discovery
1012                    list */
1013                 lpfc_disc_list_loopmap(phba);
1014
1015                 /* Start discovery */
1016                 lpfc_disc_start(phba);
1017                 return;
1018         }
1019
1020         pmb->context1 = NULL;
1021
1022         ndlp->nlp_rpi = mb->un.varWords[0];
1023         ndlp->nlp_type |= NLP_FABRIC;
1024         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1025         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1026
1027         if (phba->hba_state < LPFC_HBA_READY) {
1028                 /* Link up discovery requires Fabrib registration. */
1029                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1030                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1031                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1032         }
1033
1034         phba->fc_ns_retry = 0;
1035         /* Good status, issue CT Request to NameServer */
1036         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1037                 /* Cannot issue NameServer Query, so finish up discovery */
1038                 lpfc_disc_start(phba);
1039         }
1040
1041         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1042         kfree(mp);
1043         mempool_free( pmb, phba->mbox_mem_pool);
1044
1045         return;
1046 }
1047
1048 static void
1049 lpfc_register_remote_port(struct lpfc_hba * phba,
1050                             struct lpfc_nodelist * ndlp)
1051 {
1052         struct fc_rport *rport;
1053         struct lpfc_rport_data *rdata;
1054         struct fc_rport_identifiers rport_ids;
1055
1056         /* Remote port has reappeared. Re-register w/ FC transport */
1057         rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1058         rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1059         rport_ids.port_id = ndlp->nlp_DID;
1060         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1061
1062         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1063         if (!rport) {
1064                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1065                            "Warning: fc_remote_port_add failed\n");
1066                 return;
1067         }
1068
1069         /* initialize static port data */
1070         rport->maxframe_size = ndlp->nlp_maxframe;
1071         rport->supported_classes = ndlp->nlp_class_sup;
1072         if ((rport->scsi_target_id != -1) &&
1073                 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1074                 ndlp->nlp_sid = rport->scsi_target_id;
1075         }
1076         rdata = rport->dd_data;
1077         rdata->pnode = ndlp;
1078
1079         if (ndlp->nlp_type & NLP_FCP_TARGET)
1080                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1081         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1082                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1083
1084
1085         if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
1086                 fc_remote_port_rolechg(rport, rport_ids.roles);
1087
1088
1089         return;
1090 }
1091
1092 static void
1093 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1094                             struct lpfc_nodelist * ndlp)
1095 {
1096         struct fc_rport *rport = ndlp->rport;
1097         struct lpfc_rport_data *rdata = rport->dd_data;
1098
1099         ndlp->rport = NULL;
1100         rdata->pnode = NULL;
1101         fc_remote_port_delete(rport);
1102
1103         return;
1104 }
1105
1106 int
1107 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1108 {
1109         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1110         struct lpfc_sli      *psli;
1111
1112         psli = &phba->sli;
1113         /* Sanity check to ensure we are not moving to / from the same list */
1114         if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1115                 if (list != NLP_NO_LIST)
1116                         return 0;
1117
1118         spin_lock_irq(phba->host->host_lock);
1119         switch (nlp->nlp_flag & NLP_LIST_MASK) {
1120         case NLP_NO_LIST: /* Not on any list */
1121                 break;
1122         case NLP_UNUSED_LIST:
1123                 phba->fc_unused_cnt--;
1124                 list_del(&nlp->nlp_listp);
1125                 break;
1126         case NLP_PLOGI_LIST:
1127                 phba->fc_plogi_cnt--;
1128                 list_del(&nlp->nlp_listp);
1129                 break;
1130         case NLP_ADISC_LIST:
1131                 phba->fc_adisc_cnt--;
1132                 list_del(&nlp->nlp_listp);
1133                 break;
1134         case NLP_REGLOGIN_LIST:
1135                 phba->fc_reglogin_cnt--;
1136                 list_del(&nlp->nlp_listp);
1137                 break;
1138         case NLP_PRLI_LIST:
1139                 phba->fc_prli_cnt--;
1140                 list_del(&nlp->nlp_listp);
1141                 break;
1142         case NLP_UNMAPPED_LIST:
1143                 phba->fc_unmap_cnt--;
1144                 list_del(&nlp->nlp_listp);
1145                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1146                 nlp->nlp_type &= ~NLP_FC_NODE;
1147                 phba->nport_event_cnt++;
1148                 if (nlp->rport)
1149                         rport_del = unmapped;
1150                 break;
1151         case NLP_MAPPED_LIST:
1152                 phba->fc_map_cnt--;
1153                 list_del(&nlp->nlp_listp);
1154                 phba->nport_event_cnt++;
1155                 if (nlp->rport)
1156                         rport_del = mapped;
1157                 break;
1158         case NLP_NPR_LIST:
1159                 phba->fc_npr_cnt--;
1160                 list_del(&nlp->nlp_listp);
1161                 /* Stop delay tmo if taking node off NPR list */
1162                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1163                    (list != NLP_NPR_LIST)) {
1164                         spin_unlock_irq(phba->host->host_lock);
1165                         lpfc_cancel_retry_delay_tmo(phba, nlp);
1166                         spin_lock_irq(phba->host->host_lock);
1167                 }
1168                 break;
1169         }
1170
1171         nlp->nlp_flag &= ~NLP_LIST_MASK;
1172
1173         /* Add NPort <did> to <num> list */
1174         lpfc_printf_log(phba,
1175                         KERN_INFO,
1176                         LOG_NODE,
1177                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1178                         phba->brd_no,
1179                         nlp->nlp_DID, list, nlp->nlp_flag);
1180
1181         switch (list) {
1182         case NLP_NO_LIST: /* No list, just remove it */
1183                 spin_unlock_irq(phba->host->host_lock);
1184                 lpfc_nlp_remove(phba, nlp);
1185                 spin_lock_irq(phba->host->host_lock);
1186                 /* as node removed - stop further transport calls */
1187                 rport_del = none;
1188                 break;
1189         case NLP_UNUSED_LIST:
1190                 nlp->nlp_flag |= list;
1191                 /* Put it at the end of the unused list */
1192                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1193                 phba->fc_unused_cnt++;
1194                 break;
1195         case NLP_PLOGI_LIST:
1196                 nlp->nlp_flag |= list;
1197                 /* Put it at the end of the plogi list */
1198                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1199                 phba->fc_plogi_cnt++;
1200                 break;
1201         case NLP_ADISC_LIST:
1202                 nlp->nlp_flag |= list;
1203                 /* Put it at the end of the adisc list */
1204                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1205                 phba->fc_adisc_cnt++;
1206                 break;
1207         case NLP_REGLOGIN_LIST:
1208                 nlp->nlp_flag |= list;
1209                 /* Put it at the end of the reglogin list */
1210                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1211                 phba->fc_reglogin_cnt++;
1212                 break;
1213         case NLP_PRLI_LIST:
1214                 nlp->nlp_flag |= list;
1215                 /* Put it at the end of the prli list */
1216                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1217                 phba->fc_prli_cnt++;
1218                 break;
1219         case NLP_UNMAPPED_LIST:
1220                 rport_add = unmapped;
1221                 /* ensure all vestiges of "mapped" significance are gone */
1222                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1223                 nlp->nlp_flag |= list;
1224                 /* Put it at the end of the unmap list */
1225                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1226                 phba->fc_unmap_cnt++;
1227                 phba->nport_event_cnt++;
1228                 /* stop nodev tmo if running */
1229                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1230                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1231                         spin_unlock_irq(phba->host->host_lock);
1232                         del_timer_sync(&nlp->nlp_tmofunc);
1233                         spin_lock_irq(phba->host->host_lock);
1234                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1235                                 list_del_init(&nlp->nodev_timeout_evt.
1236                                                 evt_listp);
1237
1238                 }
1239                 nlp->nlp_type |= NLP_FC_NODE;
1240                 break;
1241         case NLP_MAPPED_LIST:
1242                 rport_add = mapped;
1243                 nlp->nlp_flag |= list;
1244                 /* Put it at the end of the map list */
1245                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1246                 phba->fc_map_cnt++;
1247                 phba->nport_event_cnt++;
1248                 /* stop nodev tmo if running */
1249                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1250                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1251                         spin_unlock_irq(phba->host->host_lock);
1252                         del_timer_sync(&nlp->nlp_tmofunc);
1253                         spin_lock_irq(phba->host->host_lock);
1254                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1255                                 list_del_init(&nlp->nodev_timeout_evt.
1256                                                 evt_listp);
1257
1258                 }
1259                 break;
1260         case NLP_NPR_LIST:
1261                 nlp->nlp_flag |= list;
1262                 /* Put it at the end of the npr list */
1263                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1264                 phba->fc_npr_cnt++;
1265
1266                 if (!(nlp->nlp_flag & NLP_NODEV_TMO))
1267                         mod_timer(&nlp->nlp_tmofunc,
1268                                         jiffies + HZ * phba->cfg_nodev_tmo);
1269
1270                 nlp->nlp_flag |= NLP_NODEV_TMO;
1271                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1272                 break;
1273         case NLP_JUST_DQ:
1274                 break;
1275         }
1276
1277         spin_unlock_irq(phba->host->host_lock);
1278
1279         /*
1280          * We make all the calls into the transport after we have
1281          * moved the node between lists. This so that we don't
1282          * release the lock while in-between lists.
1283          */
1284
1285         /* Don't upcall midlayer if we're unloading */
1286         if (!(phba->fc_flag & FC_UNLOADING)) {
1287                 /*
1288                  * We revalidate the rport pointer as the "add" function
1289                  * may have removed the remote port.
1290                  */
1291                 if ((rport_del != none) && nlp->rport)
1292                         lpfc_unregister_remote_port(phba, nlp);
1293
1294                 if (rport_add != none) {
1295                         /*
1296                          * Tell the fc transport about the port, if we haven't
1297                          * already. If we have, and it's a scsi entity, be
1298                          * sure to unblock any attached scsi devices
1299                          */
1300                         if (!nlp->rport)
1301                                 lpfc_register_remote_port(phba, nlp);
1302
1303                         /*
1304                          * if we added to Mapped list, but the remote port
1305                          * registration failed or assigned a target id outside
1306                          * our presentable range - move the node to the
1307                          * Unmapped List
1308                          */
1309                         if ((rport_add == mapped) &&
1310                             ((!nlp->rport) ||
1311                              (nlp->rport->scsi_target_id == -1) ||
1312                              (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1313                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1314                                 spin_lock_irq(phba->host->host_lock);
1315                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1316                                 spin_unlock_irq(phba->host->host_lock);
1317                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1318                         }
1319                 }
1320         }
1321         return 0;
1322 }
1323
1324 /*
1325  * Start / ReStart rescue timer for Discovery / RSCN handling
1326  */
1327 void
1328 lpfc_set_disctmo(struct lpfc_hba * phba)
1329 {
1330         uint32_t tmo;
1331
1332         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1333                 /* For FAN, timeout should be greater then edtov */
1334                 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1335         } else {
1336                 /* Normal discovery timeout should be > then ELS/CT timeout
1337                  * FC spec states we need 3 * ratov for CT requests
1338                  */
1339                 tmo = ((phba->fc_ratov * 3) + 3);
1340         }
1341
1342         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1343         spin_lock_irq(phba->host->host_lock);
1344         phba->fc_flag |= FC_DISC_TMO;
1345         spin_unlock_irq(phba->host->host_lock);
1346
1347         /* Start Discovery Timer state <hba_state> */
1348         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1349                         "%d:0247 Start Discovery Timer state x%x "
1350                         "Data: x%x x%lx x%x x%x\n",
1351                         phba->brd_no,
1352                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1353                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1354
1355         return;
1356 }
1357
1358 /*
1359  * Cancel rescue timer for Discovery / RSCN handling
1360  */
1361 int
1362 lpfc_can_disctmo(struct lpfc_hba * phba)
1363 {
1364         /* Turn off discovery timer if its running */
1365         if (phba->fc_flag & FC_DISC_TMO) {
1366                 spin_lock_irq(phba->host->host_lock);
1367                 phba->fc_flag &= ~FC_DISC_TMO;
1368                 spin_unlock_irq(phba->host->host_lock);
1369                 del_timer_sync(&phba->fc_disctmo);
1370                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1371         }
1372
1373         /* Cancel Discovery Timer state <hba_state> */
1374         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1375                         "%d:0248 Cancel Discovery Timer state x%x "
1376                         "Data: x%x x%x x%x\n",
1377                         phba->brd_no, phba->hba_state, phba->fc_flag,
1378                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1379
1380         return 0;
1381 }
1382
1383 /*
1384  * Check specified ring for outstanding IOCB on the SLI queue
1385  * Return true if iocb matches the specified nport
1386  */
1387 int
1388 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1389                     struct lpfc_sli_ring * pring,
1390                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1391 {
1392         struct lpfc_sli *psli;
1393         IOCB_t *icmd;
1394
1395         psli = &phba->sli;
1396         icmd = &iocb->iocb;
1397         if (pring->ringno == LPFC_ELS_RING) {
1398                 switch (icmd->ulpCommand) {
1399                 case CMD_GEN_REQUEST64_CR:
1400                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1401                                 return 1;
1402                 case CMD_ELS_REQUEST64_CR:
1403                 case CMD_XMIT_ELS_RSP64_CX:
1404                         if (iocb->context1 == (uint8_t *) ndlp)
1405                                 return 1;
1406                 }
1407         } else if (pring->ringno == psli->ip_ring) {
1408
1409         } else if (pring->ringno == psli->fcp_ring) {
1410                 /* Skip match check if waiting to relogin to FCP target */
1411                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1412                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1413                         return 0;
1414                 }
1415                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1416                         return 1;
1417                 }
1418         } else if (pring->ringno == psli->next_ring) {
1419
1420         }
1421         return 0;
1422 }
1423
1424 /*
1425  * Free resources / clean up outstanding I/Os
1426  * associated with nlp_rpi in the LPFC_NODELIST entry.
1427  */
1428 static int
1429 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1430 {
1431         struct lpfc_sli *psli;
1432         struct lpfc_sli_ring *pring;
1433         struct lpfc_iocbq *iocb, *next_iocb;
1434         IOCB_t *icmd;
1435         uint32_t rpi, i;
1436
1437         /*
1438          * Everything that matches on txcmplq will be returned
1439          * by firmware with a no rpi error.
1440          */
1441         psli = &phba->sli;
1442         rpi = ndlp->nlp_rpi;
1443         if (rpi) {
1444                 /* Now process each ring */
1445                 for (i = 0; i < psli->num_rings; i++) {
1446                         pring = &psli->ring[i];
1447
1448                         spin_lock_irq(phba->host->host_lock);
1449                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1450                                                 list) {
1451                                 /*
1452                                  * Check to see if iocb matches the nport we are
1453                                  * looking for
1454                                  */
1455                                 if ((lpfc_check_sli_ndlp
1456                                      (phba, pring, iocb, ndlp))) {
1457                                         /* It matches, so deque and call compl
1458                                            with an error */
1459                                         list_del(&iocb->list);
1460                                         pring->txq_cnt--;
1461                                         if (iocb->iocb_cmpl) {
1462                                                 icmd = &iocb->iocb;
1463                                                 icmd->ulpStatus =
1464                                                     IOSTAT_LOCAL_REJECT;
1465                                                 icmd->un.ulpWord[4] =
1466                                                     IOERR_SLI_ABORTED;
1467                                                 spin_unlock_irq(phba->host->
1468                                                                 host_lock);
1469                                                 (iocb->iocb_cmpl) (phba,
1470                                                                    iocb, iocb);
1471                                                 spin_lock_irq(phba->host->
1472                                                               host_lock);
1473                                         } else
1474                                                 lpfc_sli_release_iocbq(phba,
1475                                                                        iocb);
1476                                 }
1477                         }
1478                         spin_unlock_irq(phba->host->host_lock);
1479
1480                 }
1481         }
1482         return 0;
1483 }
1484
1485 /*
1486  * Free rpi associated with LPFC_NODELIST entry.
1487  * This routine is called from lpfc_freenode(), when we are removing
1488  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1489  * LOGO that completes successfully, and we are waiting to PLOGI back
1490  * to the remote NPort. In addition, it is called after we receive
1491  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1492  * we are waiting to PLOGI back to the remote NPort.
1493  */
1494 int
1495 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1496 {
1497         LPFC_MBOXQ_t *mbox;
1498         int rc;
1499
1500         if (ndlp->nlp_rpi) {
1501                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1502                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1503                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1504                         rc = lpfc_sli_issue_mbox
1505                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1506                         if (rc == MBX_NOT_FINISHED)
1507                                 mempool_free( mbox, phba->mbox_mem_pool);
1508                 }
1509                 lpfc_no_rpi(phba, ndlp);
1510                 ndlp->nlp_rpi = 0;
1511                 return 1;
1512         }
1513         return 0;
1514 }
1515
1516 /*
1517  * Free resources associated with LPFC_NODELIST entry
1518  * so it can be freed.
1519  */
1520 static int
1521 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1522 {
1523         LPFC_MBOXQ_t       *mb;
1524         LPFC_MBOXQ_t       *nextmb;
1525         struct lpfc_dmabuf *mp;
1526
1527         /* Cleanup node for NPort <nlp_DID> */
1528         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1529                         "%d:0900 Cleanup node for NPort x%x "
1530                         "Data: x%x x%x x%x\n",
1531                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1532                         ndlp->nlp_state, ndlp->nlp_rpi);
1533
1534         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1535
1536         /*
1537          * if unloading the driver - just leave the remote port in place.
1538          * The driver unload will force the attached devices to detach
1539          * and flush cache's w/o generating flush errors.
1540          */
1541         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1542                 lpfc_unregister_remote_port(phba, ndlp);
1543                 ndlp->nlp_sid = NLP_NO_SID;
1544         }
1545
1546         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1547         if ((mb = phba->sli.mbox_active)) {
1548                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1549                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1550                         mb->context2 = NULL;
1551                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1552                 }
1553         }
1554         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1555                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1556                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1557                         mp = (struct lpfc_dmabuf *) (mb->context1);
1558                         if (mp) {
1559                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1560                                 kfree(mp);
1561                         }
1562                         list_del(&mb->list);
1563                         mempool_free(mb, phba->mbox_mem_pool);
1564                 }
1565         }
1566
1567         lpfc_els_abort(phba,ndlp,0);
1568         spin_lock_irq(phba->host->host_lock);
1569         ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1570         spin_unlock_irq(phba->host->host_lock);
1571         del_timer_sync(&ndlp->nlp_tmofunc);
1572
1573         ndlp->nlp_last_elscmd = 0;
1574         del_timer_sync(&ndlp->nlp_delayfunc);
1575
1576         if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1577                 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1578         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1579                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1580
1581         lpfc_unreg_rpi(phba, ndlp);
1582
1583         return 0;
1584 }
1585
1586 /*
1587  * Check to see if we can free the nlp back to the freelist.
1588  * If we are in the middle of using the nlp in the discovery state
1589  * machine, defer the free till we reach the end of the state machine.
1590  */
1591 int
1592 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1593 {
1594         if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1595                 spin_lock_irq(phba->host->host_lock);
1596                 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1597                 spin_unlock_irq(phba->host->host_lock);
1598                 del_timer_sync(&ndlp->nlp_tmofunc);
1599                 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1600                         list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1601
1602         }
1603
1604
1605         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1606                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1607         }
1608
1609         if (ndlp->nlp_disc_refcnt) {
1610                 spin_lock_irq(phba->host->host_lock);
1611                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1612                 spin_unlock_irq(phba->host->host_lock);
1613         } else {
1614                 lpfc_freenode(phba, ndlp);
1615                 mempool_free( ndlp, phba->nlp_mem_pool);
1616         }
1617         return 0;
1618 }
1619
1620 static int
1621 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1622 {
1623         D_ID mydid;
1624         D_ID ndlpdid;
1625         D_ID matchdid;
1626
1627         if (did == Bcast_DID)
1628                 return 0;
1629
1630         if (ndlp->nlp_DID == 0) {
1631                 return 0;
1632         }
1633
1634         /* First check for Direct match */
1635         if (ndlp->nlp_DID == did)
1636                 return 1;
1637
1638         /* Next check for area/domain identically equals 0 match */
1639         mydid.un.word = phba->fc_myDID;
1640         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1641                 return 0;
1642         }
1643
1644         matchdid.un.word = did;
1645         ndlpdid.un.word = ndlp->nlp_DID;
1646         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1647                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1648                     (mydid.un.b.area == matchdid.un.b.area)) {
1649                         if ((ndlpdid.un.b.domain == 0) &&
1650                             (ndlpdid.un.b.area == 0)) {
1651                                 if (ndlpdid.un.b.id)
1652                                         return 1;
1653                         }
1654                         return 0;
1655                 }
1656
1657                 matchdid.un.word = ndlp->nlp_DID;
1658                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1659                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1660                         if ((matchdid.un.b.domain == 0) &&
1661                             (matchdid.un.b.area == 0)) {
1662                                 if (matchdid.un.b.id)
1663                                         return 1;
1664                         }
1665                 }
1666         }
1667         return 0;
1668 }
1669
1670 /* Search for a nodelist entry on a specific list */
1671 struct lpfc_nodelist *
1672 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1673 {
1674         struct lpfc_nodelist *ndlp, *next_ndlp;
1675         uint32_t data1;
1676
1677         spin_lock_irq(phba->host->host_lock);
1678         if (order & NLP_SEARCH_UNMAPPED) {
1679                 list_for_each_entry_safe(ndlp, next_ndlp,
1680                                          &phba->fc_nlpunmap_list, nlp_listp) {
1681                         if (lpfc_matchdid(phba, ndlp, did)) {
1682                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1683                                          ((uint32_t) ndlp->nlp_xri << 16) |
1684                                          ((uint32_t) ndlp->nlp_type << 8) |
1685                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1686                                 /* FIND node DID unmapped */
1687                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1688                                                 "%d:0929 FIND node DID unmapped"
1689                                                 " Data: x%p x%x x%x x%x\n",
1690                                                 phba->brd_no,
1691                                                 ndlp, ndlp->nlp_DID,
1692                                                 ndlp->nlp_flag, data1);
1693                                 spin_unlock_irq(phba->host->host_lock);
1694                                 return ndlp;
1695                         }
1696                 }
1697         }
1698
1699         if (order & NLP_SEARCH_MAPPED) {
1700                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1701                                         nlp_listp) {
1702                         if (lpfc_matchdid(phba, ndlp, did)) {
1703
1704                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1705                                          ((uint32_t) ndlp->nlp_xri << 16) |
1706                                          ((uint32_t) ndlp->nlp_type << 8) |
1707                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1708                                 /* FIND node DID mapped */
1709                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1710                                                 "%d:0930 FIND node DID mapped "
1711                                                 "Data: x%p x%x x%x x%x\n",
1712                                                 phba->brd_no,
1713                                                 ndlp, ndlp->nlp_DID,
1714                                                 ndlp->nlp_flag, data1);
1715                                 spin_unlock_irq(phba->host->host_lock);
1716                                 return ndlp;
1717                         }
1718                 }
1719         }
1720
1721         if (order & NLP_SEARCH_PLOGI) {
1722                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1723                                         nlp_listp) {
1724                         if (lpfc_matchdid(phba, ndlp, did)) {
1725
1726                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1727                                          ((uint32_t) ndlp->nlp_xri << 16) |
1728                                          ((uint32_t) ndlp->nlp_type << 8) |
1729                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1730                                 /* LOG change to PLOGI */
1731                                 /* FIND node DID plogi */
1732                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1733                                                 "%d:0908 FIND node DID plogi "
1734                                                 "Data: x%p x%x x%x x%x\n",
1735                                                 phba->brd_no,
1736                                                 ndlp, ndlp->nlp_DID,
1737                                                 ndlp->nlp_flag, data1);
1738                                 spin_unlock_irq(phba->host->host_lock);
1739                                 return ndlp;
1740                         }
1741                 }
1742         }
1743
1744         if (order & NLP_SEARCH_ADISC) {
1745                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1746                                         nlp_listp) {
1747                         if (lpfc_matchdid(phba, ndlp, did)) {
1748
1749                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1750                                          ((uint32_t) ndlp->nlp_xri << 16) |
1751                                          ((uint32_t) ndlp->nlp_type << 8) |
1752                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1753                                 /* LOG change to ADISC */
1754                                 /* FIND node DID adisc */
1755                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1756                                                 "%d:0931 FIND node DID adisc "
1757                                                 "Data: x%p x%x x%x x%x\n",
1758                                                 phba->brd_no,
1759                                                 ndlp, ndlp->nlp_DID,
1760                                                 ndlp->nlp_flag, data1);
1761                                 return ndlp;
1762                         }
1763                 }
1764         }
1765
1766         if (order & NLP_SEARCH_REGLOGIN) {
1767                 list_for_each_entry_safe(ndlp, next_ndlp,
1768                                          &phba->fc_reglogin_list, nlp_listp) {
1769                         if (lpfc_matchdid(phba, ndlp, did)) {
1770
1771                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1772                                          ((uint32_t) ndlp->nlp_xri << 16) |
1773                                          ((uint32_t) ndlp->nlp_type << 8) |
1774                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1775                                 /* LOG change to REGLOGIN */
1776                                 /* FIND node DID reglogin */
1777                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1778                                                 "%d:0931 FIND node DID reglogin"
1779                                                 " Data: x%p x%x x%x x%x\n",
1780                                                 phba->brd_no,
1781                                                 ndlp, ndlp->nlp_DID,
1782                                                 ndlp->nlp_flag, data1);
1783                                 spin_unlock_irq(phba->host->host_lock);
1784                                 return ndlp;
1785                         }
1786                 }
1787         }
1788
1789         if (order & NLP_SEARCH_PRLI) {
1790                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1791                                         nlp_listp) {
1792                         if (lpfc_matchdid(phba, ndlp, did)) {
1793
1794                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1795                                          ((uint32_t) ndlp->nlp_xri << 16) |
1796                                          ((uint32_t) ndlp->nlp_type << 8) |
1797                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1798                                 /* LOG change to PRLI */
1799                                 /* FIND node DID prli */
1800                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1801                                                 "%d:0931 FIND node DID prli "
1802                                                 "Data: x%p x%x x%x x%x\n",
1803                                                 phba->brd_no,
1804                                                 ndlp, ndlp->nlp_DID,
1805                                                 ndlp->nlp_flag, data1);
1806                                 return ndlp;
1807                         }
1808                 }
1809         }
1810
1811         if (order & NLP_SEARCH_NPR) {
1812                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1813                                         nlp_listp) {
1814                         if (lpfc_matchdid(phba, ndlp, did)) {
1815
1816                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1817                                          ((uint32_t) ndlp->nlp_xri << 16) |
1818                                          ((uint32_t) ndlp->nlp_type << 8) |
1819                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1820                                 /* LOG change to NPR */
1821                                 /* FIND node DID npr */
1822                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1823                                                 "%d:0931 FIND node DID npr "
1824                                                 "Data: x%p x%x x%x x%x\n",
1825                                                 phba->brd_no,
1826                                                 ndlp, ndlp->nlp_DID,
1827                                                 ndlp->nlp_flag, data1);
1828                                 spin_unlock_irq(phba->host->host_lock);
1829                                 return ndlp;
1830                         }
1831                 }
1832         }
1833
1834         if (order & NLP_SEARCH_UNUSED) {
1835                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1836                                         nlp_listp) {
1837                         if (lpfc_matchdid(phba, ndlp, did)) {
1838
1839                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1840                                          ((uint32_t) ndlp->nlp_xri << 16) |
1841                                          ((uint32_t) ndlp->nlp_type << 8) |
1842                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1843                                 /* LOG change to UNUSED */
1844                                 /* FIND node DID unused */
1845                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1846                                                 "%d:0931 FIND node DID unused "
1847                                                 "Data: x%p x%x x%x x%x\n",
1848                                                 phba->brd_no,
1849                                                 ndlp, ndlp->nlp_DID,
1850                                                 ndlp->nlp_flag, data1);
1851                                 spin_unlock_irq(phba->host->host_lock);
1852                                 return ndlp;
1853                         }
1854                 }
1855         }
1856
1857         spin_unlock_irq(phba->host->host_lock);
1858
1859         /* FIND node did <did> NOT FOUND */
1860         lpfc_printf_log(phba,
1861                         KERN_INFO,
1862                         LOG_NODE,
1863                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1864                         phba->brd_no, did, order);
1865
1866         /* no match found */
1867         return NULL;
1868 }
1869
1870 struct lpfc_nodelist *
1871 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1872 {
1873         struct lpfc_nodelist *ndlp;
1874         uint32_t flg;
1875
1876         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1877         if (!ndlp) {
1878                 if ((phba->fc_flag & FC_RSCN_MODE) &&
1879                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1880                         return NULL;
1881                 ndlp = (struct lpfc_nodelist *)
1882                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1883                 if (!ndlp)
1884                         return NULL;
1885                 lpfc_nlp_init(phba, ndlp, did);
1886                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1887                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1888                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1889                 return ndlp;
1890         }
1891         if (phba->fc_flag & FC_RSCN_MODE) {
1892                 if (lpfc_rscn_payload_check(phba, did)) {
1893                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1894
1895                         /* Since this node is marked for discovery,
1896                          * delay timeout is not needed.
1897                          */
1898                         if (ndlp->nlp_flag & NLP_DELAY_TMO)
1899                                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1900                 } else {
1901                         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1902                         ndlp = NULL;
1903                 }
1904         } else {
1905                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1906                 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1907                         return NULL;
1908                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1909                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1910                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1911         }
1912         return ndlp;
1913 }
1914
1915 /* Build a list of nodes to discover based on the loopmap */
1916 void
1917 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1918 {
1919         int j;
1920         uint32_t alpa, index;
1921
1922         if (phba->hba_state <= LPFC_LINK_DOWN) {
1923                 return;
1924         }
1925         if (phba->fc_topology != TOPOLOGY_LOOP) {
1926                 return;
1927         }
1928
1929         /* Check for loop map present or not */
1930         if (phba->alpa_map[0]) {
1931                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1932                         alpa = phba->alpa_map[j];
1933
1934                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1935                                 continue;
1936                         }
1937                         lpfc_setup_disc_node(phba, alpa);
1938                 }
1939         } else {
1940                 /* No alpamap, so try all alpa's */
1941                 for (j = 0; j < FC_MAXLOOP; j++) {
1942                         /* If cfg_scan_down is set, start from highest
1943                          * ALPA (0xef) to lowest (0x1).
1944                          */
1945                         if (phba->cfg_scan_down)
1946                                 index = j;
1947                         else
1948                                 index = FC_MAXLOOP - j - 1;
1949                         alpa = lpfcAlpaArray[index];
1950                         if ((phba->fc_myDID & 0xff) == alpa) {
1951                                 continue;
1952                         }
1953
1954                         lpfc_setup_disc_node(phba, alpa);
1955                 }
1956         }
1957         return;
1958 }
1959
1960 /* Start Link up / RSCN discovery on NPR list */
1961 void
1962 lpfc_disc_start(struct lpfc_hba * phba)
1963 {
1964         struct lpfc_sli *psli;
1965         LPFC_MBOXQ_t *mbox;
1966         struct lpfc_nodelist *ndlp, *next_ndlp;
1967         uint32_t did_changed, num_sent;
1968         uint32_t clear_la_pending;
1969         int rc;
1970
1971         psli = &phba->sli;
1972
1973         if (phba->hba_state <= LPFC_LINK_DOWN) {
1974                 return;
1975         }
1976         if (phba->hba_state == LPFC_CLEAR_LA)
1977                 clear_la_pending = 1;
1978         else
1979                 clear_la_pending = 0;
1980
1981         if (phba->hba_state < LPFC_HBA_READY) {
1982                 phba->hba_state = LPFC_DISC_AUTH;
1983         }
1984         lpfc_set_disctmo(phba);
1985
1986         if (phba->fc_prevDID == phba->fc_myDID) {
1987                 did_changed = 0;
1988         } else {
1989                 did_changed = 1;
1990         }
1991         phba->fc_prevDID = phba->fc_myDID;
1992         phba->num_disc_nodes = 0;
1993
1994         /* Start Discovery state <hba_state> */
1995         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1996                         "%d:0202 Start Discovery hba state x%x "
1997                         "Data: x%x x%x x%x\n",
1998                         phba->brd_no, phba->hba_state, phba->fc_flag,
1999                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2000
2001         /* If our did changed, we MUST do PLOGI */
2002         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2003                                 nlp_listp) {
2004                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2005                         if (did_changed) {
2006                                 spin_lock_irq(phba->host->host_lock);
2007                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2008                                 spin_unlock_irq(phba->host->host_lock);
2009                         }
2010                 }
2011         }
2012
2013         /* First do ADISCs - if any */
2014         num_sent = lpfc_els_disc_adisc(phba);
2015
2016         if (num_sent)
2017                 return;
2018
2019         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2020                 /* If we get here, there is nothing to ADISC */
2021                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2022                         phba->hba_state = LPFC_CLEAR_LA;
2023                         lpfc_clear_la(phba, mbox);
2024                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2025                         rc = lpfc_sli_issue_mbox(phba, mbox,
2026                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
2027                         if (rc == MBX_NOT_FINISHED) {
2028                                 mempool_free( mbox, phba->mbox_mem_pool);
2029                                 lpfc_disc_flush_list(phba);
2030                                 psli->ring[(psli->ip_ring)].flag &=
2031                                         ~LPFC_STOP_IOCB_EVENT;
2032                                 psli->ring[(psli->fcp_ring)].flag &=
2033                                         ~LPFC_STOP_IOCB_EVENT;
2034                                 psli->ring[(psli->next_ring)].flag &=
2035                                         ~LPFC_STOP_IOCB_EVENT;
2036                                 phba->hba_state = LPFC_HBA_READY;
2037                         }
2038                 }
2039         } else {
2040                 /* Next do PLOGIs - if any */
2041                 num_sent = lpfc_els_disc_plogi(phba);
2042
2043                 if (num_sent)
2044                         return;
2045
2046                 if (phba->fc_flag & FC_RSCN_MODE) {
2047                         /* Check to see if more RSCNs came in while we
2048                          * were processing this one.
2049                          */
2050                         if ((phba->fc_rscn_id_cnt == 0) &&
2051                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2052                                 spin_lock_irq(phba->host->host_lock);
2053                                 phba->fc_flag &= ~FC_RSCN_MODE;
2054                                 spin_unlock_irq(phba->host->host_lock);
2055                         } else
2056                                 lpfc_els_handle_rscn(phba);
2057                 }
2058         }
2059         return;
2060 }
2061
2062 /*
2063  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2064  *  ring the match the sppecified nodelist.
2065  */
2066 static void
2067 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2068 {
2069         struct lpfc_sli *psli;
2070         IOCB_t     *icmd;
2071         struct lpfc_iocbq    *iocb, *next_iocb;
2072         struct lpfc_sli_ring *pring;
2073         struct lpfc_dmabuf   *mp;
2074
2075         psli = &phba->sli;
2076         pring = &psli->ring[LPFC_ELS_RING];
2077
2078         /* Error matching iocb on txq or txcmplq
2079          * First check the txq.
2080          */
2081         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2082                 if (iocb->context1 != ndlp) {
2083                         continue;
2084                 }
2085                 icmd = &iocb->iocb;
2086                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2087                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2088
2089                         list_del(&iocb->list);
2090                         pring->txq_cnt--;
2091                         lpfc_els_free_iocb(phba, iocb);
2092                 }
2093         }
2094
2095         /* Next check the txcmplq */
2096         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2097                 if (iocb->context1 != ndlp) {
2098                         continue;
2099                 }
2100                 icmd = &iocb->iocb;
2101                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2102                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2103
2104                         iocb->iocb_cmpl = NULL;
2105                         /* context2 = cmd, context2->next = rsp, context3 =
2106                            bpl */
2107                         if (iocb->context2) {
2108                                 /* Free the response IOCB before handling the
2109                                    command. */
2110
2111                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2112                                 mp = list_get_first(&mp->list,
2113                                                     struct lpfc_dmabuf,
2114                                                     list);
2115                                 if (mp) {
2116                                         /* Delay before releasing rsp buffer to
2117                                          * give UNREG mbox a chance to take
2118                                          * effect.
2119                                          */
2120                                         list_add(&mp->list,
2121                                                 &phba->freebufList);
2122                                 }
2123                                 lpfc_mbuf_free(phba,
2124                                                ((struct lpfc_dmabuf *)
2125                                                 iocb->context2)->virt,
2126                                                ((struct lpfc_dmabuf *)
2127                                                 iocb->context2)->phys);
2128                                 kfree(iocb->context2);
2129                         }
2130
2131                         if (iocb->context3) {
2132                                 lpfc_mbuf_free(phba,
2133                                                ((struct lpfc_dmabuf *)
2134                                                 iocb->context3)->virt,
2135                                                ((struct lpfc_dmabuf *)
2136                                                 iocb->context3)->phys);
2137                                 kfree(iocb->context3);
2138                         }
2139                 }
2140         }
2141
2142         return;
2143 }
2144
2145 void
2146 lpfc_disc_flush_list(struct lpfc_hba * phba)
2147 {
2148         struct lpfc_nodelist *ndlp, *next_ndlp;
2149
2150         if (phba->fc_plogi_cnt) {
2151                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2152                                         nlp_listp) {
2153                         lpfc_free_tx(phba, ndlp);
2154                         lpfc_nlp_remove(phba, ndlp);
2155                 }
2156         }
2157         if (phba->fc_adisc_cnt) {
2158                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2159                                         nlp_listp) {
2160                         lpfc_free_tx(phba, ndlp);
2161                         lpfc_nlp_remove(phba, ndlp);
2162                 }
2163         }
2164         return;
2165 }
2166
2167 /*****************************************************************************/
2168 /*
2169  * NAME:     lpfc_disc_timeout
2170  *
2171  * FUNCTION: Fibre Channel driver discovery timeout routine.
2172  *
2173  * EXECUTION ENVIRONMENT: interrupt only
2174  *
2175  * CALLED FROM:
2176  *      Timer function
2177  *
2178  * RETURNS:
2179  *      none
2180  */
2181 /*****************************************************************************/
2182 void
2183 lpfc_disc_timeout(unsigned long ptr)
2184 {
2185         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2186         unsigned long flags = 0;
2187
2188         if (unlikely(!phba))
2189                 return;
2190
2191         spin_lock_irqsave(phba->host->host_lock, flags);
2192         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2193                 phba->work_hba_events |= WORKER_DISC_TMO;
2194                 if (phba->work_wait)
2195                         wake_up(phba->work_wait);
2196         }
2197         spin_unlock_irqrestore(phba->host->host_lock, flags);
2198         return;
2199 }
2200
2201 static void
2202 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2203 {
2204         struct lpfc_sli *psli;
2205         struct lpfc_nodelist *ndlp, *next_ndlp;
2206         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2207         int rc, clrlaerr = 0;
2208
2209         if (unlikely(!phba))
2210                 return;
2211
2212         if (!(phba->fc_flag & FC_DISC_TMO))
2213                 return;
2214
2215         psli = &phba->sli;
2216
2217         spin_lock_irq(phba->host->host_lock);
2218         phba->fc_flag &= ~FC_DISC_TMO;
2219         spin_unlock_irq(phba->host->host_lock);
2220
2221         switch (phba->hba_state) {
2222
2223         case LPFC_LOCAL_CFG_LINK:
2224         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2225                 /* FAN timeout */
2226                 lpfc_printf_log(phba,
2227                                  KERN_WARNING,
2228                                  LOG_DISCOVERY,
2229                                  "%d:0221 FAN timeout\n",
2230                                  phba->brd_no);
2231
2232                 /* Start discovery by sending FLOGI, clean up old rpis */
2233                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2234                                         nlp_listp) {
2235                         if (ndlp->nlp_type & NLP_FABRIC) {
2236                                 /* Clean up the ndlp on Fabric connections */
2237                                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2238                         } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2239                                 /* Fail outstanding IO now since device
2240                                  * is marked for PLOGI.
2241                                  */
2242                                 lpfc_unreg_rpi(phba, ndlp);
2243                         }
2244                 }
2245                 phba->hba_state = LPFC_FLOGI;
2246                 lpfc_set_disctmo(phba);
2247                 lpfc_initial_flogi(phba);
2248                 break;
2249
2250         case LPFC_FLOGI:
2251         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2252                 /* Initial FLOGI timeout */
2253                 lpfc_printf_log(phba,
2254                                  KERN_ERR,
2255                                  LOG_DISCOVERY,
2256                                  "%d:0222 Initial FLOGI timeout\n",
2257                                  phba->brd_no);
2258
2259                 /* Assume no Fabric and go on with discovery.
2260                  * Check for outstanding ELS FLOGI to abort.
2261                  */
2262
2263                 /* FLOGI failed, so just use loop map to make discovery list */
2264                 lpfc_disc_list_loopmap(phba);
2265
2266                 /* Start discovery */
2267                 lpfc_disc_start(phba);
2268                 break;
2269
2270         case LPFC_FABRIC_CFG_LINK:
2271         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2272            NameServer login */
2273                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2274                                 "%d:0223 Timeout while waiting for NameServer "
2275                                 "login\n", phba->brd_no);
2276
2277                 /* Next look for NameServer ndlp */
2278                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2279                 if (ndlp)
2280                         lpfc_nlp_remove(phba, ndlp);
2281                 /* Start discovery */
2282                 lpfc_disc_start(phba);
2283                 break;
2284
2285         case LPFC_NS_QRY:
2286         /* Check for wait for NameServer Rsp timeout */
2287                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2288                                 "%d:0224 NameServer Query timeout "
2289                                 "Data: x%x x%x\n",
2290                                 phba->brd_no,
2291                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2292
2293                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2294                                                                 NameServer_DID);
2295                 if (ndlp) {
2296                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2297                                 /* Try it one more time */
2298                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2299                                 if (rc == 0)
2300                                         break;
2301                         }
2302                         phba->fc_ns_retry = 0;
2303                 }
2304
2305                 /* Nothing to authenticate, so CLEAR_LA right now */
2306                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2307                 if (!clearlambox) {
2308                         clrlaerr = 1;
2309                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2310                                         "%d:0226 Device Discovery "
2311                                         "completion error\n",
2312                                         phba->brd_no);
2313                         phba->hba_state = LPFC_HBA_ERROR;
2314                         break;
2315                 }
2316
2317                 phba->hba_state = LPFC_CLEAR_LA;
2318                 lpfc_clear_la(phba, clearlambox);
2319                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2320                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2321                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2322                 if (rc == MBX_NOT_FINISHED) {
2323                         mempool_free(clearlambox, phba->mbox_mem_pool);
2324                         clrlaerr = 1;
2325                         break;
2326                 }
2327
2328                 /* Setup and issue mailbox INITIALIZE LINK command */
2329                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2330                 if (!initlinkmbox) {
2331                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2332                                         "%d:0226 Device Discovery "
2333                                         "completion error\n",
2334                                         phba->brd_no);
2335                         phba->hba_state = LPFC_HBA_ERROR;
2336                         break;
2337                 }
2338
2339                 lpfc_linkdown(phba);
2340                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2341                                phba->cfg_link_speed);
2342                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2343                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2344                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2345                 if (rc == MBX_NOT_FINISHED)
2346                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2347
2348                 break;
2349
2350         case LPFC_DISC_AUTH:
2351         /* Node Authentication timeout */
2352                 lpfc_printf_log(phba,
2353                                  KERN_ERR,
2354                                  LOG_DISCOVERY,
2355                                  "%d:0227 Node Authentication timeout\n",
2356                                  phba->brd_no);
2357                 lpfc_disc_flush_list(phba);
2358                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2359                 if (!clearlambox) {
2360                         clrlaerr = 1;
2361                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2362                                         "%d:0226 Device Discovery "
2363                                         "completion error\n",
2364                                         phba->brd_no);
2365                         phba->hba_state = LPFC_HBA_ERROR;
2366                         break;
2367                 }
2368                 phba->hba_state = LPFC_CLEAR_LA;
2369                 lpfc_clear_la(phba, clearlambox);
2370                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2371                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2372                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2373                 if (rc == MBX_NOT_FINISHED) {
2374                         mempool_free(clearlambox, phba->mbox_mem_pool);
2375                         clrlaerr = 1;
2376                 }
2377                 break;
2378
2379         case LPFC_CLEAR_LA:
2380         /* CLEAR LA timeout */
2381                 lpfc_printf_log(phba,
2382                                  KERN_ERR,
2383                                  LOG_DISCOVERY,
2384                                  "%d:0228 CLEAR LA timeout\n",
2385                                  phba->brd_no);
2386                 clrlaerr = 1;
2387                 break;
2388
2389         case LPFC_HBA_READY:
2390                 if (phba->fc_flag & FC_RSCN_MODE) {
2391                         lpfc_printf_log(phba,
2392                                         KERN_ERR,
2393                                         LOG_DISCOVERY,
2394                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2395                                         phba->brd_no,
2396                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2397
2398                         /* Cleanup any outstanding ELS commands */
2399                         lpfc_els_flush_cmd(phba);
2400
2401                         lpfc_els_flush_rscn(phba);
2402                         lpfc_disc_flush_list(phba);
2403                 }
2404                 break;
2405         }
2406
2407         if (clrlaerr) {
2408                 lpfc_disc_flush_list(phba);
2409                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2410                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2411                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2412                 phba->hba_state = LPFC_HBA_READY;
2413         }
2414
2415         return;
2416 }
2417
2418 static void
2419 lpfc_nodev_timeout(unsigned long ptr)
2420 {
2421         struct lpfc_hba *phba;
2422         struct lpfc_nodelist *ndlp;
2423         unsigned long iflag;
2424         struct lpfc_work_evt  *evtp;
2425
2426         ndlp = (struct lpfc_nodelist *)ptr;
2427         phba = ndlp->nlp_phba;
2428         evtp = &ndlp->nodev_timeout_evt;
2429         spin_lock_irqsave(phba->host->host_lock, iflag);
2430
2431         if (!list_empty(&evtp->evt_listp)) {
2432                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2433                 return;
2434         }
2435         evtp->evt_arg1  = ndlp;
2436         evtp->evt       = LPFC_EVT_NODEV_TMO;
2437         list_add_tail(&evtp->evt_listp, &phba->work_list);
2438         if (phba->work_wait)
2439                 wake_up(phba->work_wait);
2440
2441         spin_unlock_irqrestore(phba->host->host_lock, iflag);
2442         return;
2443 }
2444
2445
2446 /*
2447  * This routine handles processing a NameServer REG_LOGIN mailbox
2448  * command upon completion. It is setup in the LPFC_MBOXQ
2449  * as the completion routine when the command is
2450  * handed off to the SLI layer.
2451  */
2452 void
2453 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2454 {
2455         struct lpfc_sli *psli;
2456         MAILBOX_t *mb;
2457         struct lpfc_dmabuf *mp;
2458         struct lpfc_nodelist *ndlp;
2459
2460         psli = &phba->sli;
2461         mb = &pmb->mb;
2462
2463         ndlp = (struct lpfc_nodelist *) pmb->context2;
2464         mp = (struct lpfc_dmabuf *) (pmb->context1);
2465
2466         pmb->context1 = NULL;
2467
2468         ndlp->nlp_rpi = mb->un.varWords[0];
2469         ndlp->nlp_type |= NLP_FABRIC;
2470         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2471         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2472
2473         /* Start issuing Fabric-Device Management Interface (FDMI)
2474          * command to 0xfffffa (FDMI well known port)
2475          */
2476         if (phba->cfg_fdmi_on == 1) {
2477                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2478         } else {
2479                 /*
2480                  * Delay issuing FDMI command if fdmi-on=2
2481                  * (supporting RPA/hostnmae)
2482                  */
2483                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2484         }
2485
2486         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2487         kfree(mp);
2488         mempool_free( pmb, phba->mbox_mem_pool);
2489
2490         return;
2491 }
2492
2493 /*
2494  * This routine looks up the ndlp  lists
2495  * for the given RPI. If rpi found
2496  * it return the node list pointer
2497  * else return NULL.
2498  */
2499 struct lpfc_nodelist *
2500 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2501 {
2502         struct lpfc_nodelist *ndlp;
2503         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2504                                     &phba->fc_nlpmap_list,
2505                                     &phba->fc_plogi_list,
2506                                     &phba->fc_adisc_list,
2507                                     &phba->fc_reglogin_list};
2508         int i;
2509
2510         spin_lock_irq(phba->host->host_lock);
2511         for (i = 0; i < ARRAY_SIZE(lists); i++ )
2512                 list_for_each_entry(ndlp, lists[i], nlp_listp)
2513                         if (ndlp->nlp_rpi == rpi) {
2514                                 spin_unlock_irq(phba->host->host_lock);
2515                                 return ndlp;
2516                         }
2517         spin_unlock_irq(phba->host->host_lock);
2518         return NULL;
2519 }
2520
2521 /*
2522  * This routine looks up the ndlp  lists
2523  * for the given WWPN. If WWPN found
2524  * it return the node list pointer
2525  * else return NULL.
2526  */
2527 struct lpfc_nodelist *
2528 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2529                    struct lpfc_name * wwpn)
2530 {
2531         struct lpfc_nodelist *ndlp;
2532         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2533                                     &phba->fc_nlpmap_list,
2534                                     &phba->fc_npr_list,
2535                                     &phba->fc_plogi_list,
2536                                     &phba->fc_adisc_list,
2537                                     &phba->fc_reglogin_list,
2538                                     &phba->fc_prli_list};
2539         uint32_t search[]={NLP_SEARCH_UNMAPPED,
2540                            NLP_SEARCH_MAPPED,
2541                            NLP_SEARCH_NPR,
2542                            NLP_SEARCH_PLOGI,
2543                            NLP_SEARCH_ADISC,
2544                            NLP_SEARCH_REGLOGIN,
2545                            NLP_SEARCH_PRLI};
2546         int i;
2547
2548         spin_lock_irq(phba->host->host_lock);
2549         for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2550                 if (!(order & search[i]))
2551                         continue;
2552                 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2553                         if (memcmp(&ndlp->nlp_portname, wwpn,
2554                                    sizeof(struct lpfc_name)) == 0) {
2555                                 spin_unlock_irq(phba->host->host_lock);
2556                                 return ndlp;
2557                         }
2558                 }
2559         }
2560         spin_unlock_irq(phba->host->host_lock);
2561         return NULL;
2562 }
2563
2564 void
2565 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2566                  uint32_t did)
2567 {
2568         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2569         INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2570         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2571         init_timer(&ndlp->nlp_tmofunc);
2572         ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2573         ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2574         init_timer(&ndlp->nlp_delayfunc);
2575         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2576         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2577         ndlp->nlp_DID = did;
2578         ndlp->nlp_phba = phba;
2579         ndlp->nlp_sid = NLP_NO_SID;
2580         return;
2581 }