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_reset_barrier(phba);
 159                         lpfc_sli_brdreset(phba);
 160                         lpfc_hba_down_post(phba);
 161                         *(int *)(evtp->evt_arg1) =
 162                                 lpfc_sli_brdready(phba, HS_MBRDY);
 163                         complete((struct completion *)(evtp->evt_arg2));
 164                         break;
 165                 case LPFC_EVT_KILL:
 166                         if (phba->hba_state >= LPFC_LINK_DOWN)
 167                                 lpfc_offline(phba);
 168                         *(int *)(evtp->evt_arg1)
 169                                 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
 170                         complete((struct completion *)(evtp->evt_arg2));
 171                         break;
 172                 }
 173                 if (free_evt)
 174                         kfree(evtp);
 175                 spin_lock_irq(phba->host->host_lock);
 176         }
 177         spin_unlock_irq(phba->host->host_lock);
 178
 179 }
 180
 181 static void
 182 lpfc_work_done(struct lpfc_hba * phba)
 183 {
 184         struct lpfc_sli_ring *pring;
 185         int i;
 186         uint32_t ha_copy;
 187         uint32_t control;
 188         uint32_t work_hba_events;
 189
 190         spin_lock_irq(phba->host->host_lock);
 191         ha_copy = phba->work_ha;
 192         phba->work_ha = 0;
 193         work_hba_events=phba->work_hba_events;
 194         spin_unlock_irq(phba->host->host_lock);
 195
 196         if (ha_copy & HA_ERATT)
 197                 lpfc_handle_eratt(phba);
 198
 199         if (ha_copy & HA_MBATT)
 200                 lpfc_sli_handle_mb_event(phba);
 201
 202         if (ha_copy & HA_LATT)
 203                 lpfc_handle_latt(phba);
 204
 205         if (work_hba_events & WORKER_DISC_TMO)
 206                 lpfc_disc_timeout_handler(phba);
 207
 208         if (work_hba_events & WORKER_ELS_TMO)
 209                 lpfc_els_timeout_handler(phba);
 210
 211         if (work_hba_events & WORKER_MBOX_TMO)
 212                 lpfc_mbox_timeout_handler(phba);
 213
 214         if (work_hba_events & WORKER_FDMI_TMO)
 215                 lpfc_fdmi_tmo_handler(phba);
 216
 217         spin_lock_irq(phba->host->host_lock);
 218         phba->work_hba_events &= ~work_hba_events;
 219         spin_unlock_irq(phba->host->host_lock);
 220
 221         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
 222                 pring = &phba->sli.ring[i];
 223                 if ((ha_copy & HA_RXATT)
 224                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
 225                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
 226                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
 227                         } else {
 228                                 lpfc_sli_handle_slow_ring_event(phba, pring,
 229                                                                 (ha_copy &
 230                                                                  HA_RXMASK));
 231                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
 232                         }
 233                         /*
 234                          * Turn on Ring interrupts
 235                          */
 236                         spin_lock_irq(phba->host->host_lock);
 237                         control = readl(phba->HCregaddr);
 238                         control |= (HC_R0INT_ENA << i);
 239                         writel(control, phba->HCregaddr);
 240                         readl(phba->HCregaddr); /* flush */
 241                         spin_unlock_irq(phba->host->host_lock);
 242                 }
 243         }
 244
 245         lpfc_work_list_done (phba);
 246
 247 }
 248
 249 static int
 250 check_work_wait_done(struct lpfc_hba *phba) {
 251
 252         spin_lock_irq(phba->host->host_lock);
 253         if (phba->work_ha ||
 254             phba->work_hba_events ||
 255             (!list_empty(&phba->work_list)) ||
 256             kthread_should_stop()) {
 257                 spin_unlock_irq(phba->host->host_lock);
 258                 return 1;
 259         } else {
 260                 spin_unlock_irq(phba->host->host_lock);
 261                 return 0;
 262         }
 263 }
 264
 265 int
 266 lpfc_do_work(void *p)
 267 {
 268         struct lpfc_hba *phba = p;
 269         int rc;
 270         DECLARE_WAIT_QUEUE_HEAD(work_waitq);
 271
 272         set_user_nice(current, -20);
 273         phba->work_wait = &work_waitq;
 274
 275         while (1) {
 276
 277                 rc = wait_event_interruptible(work_waitq,
 278                                                 check_work_wait_done(phba));
 279                 BUG_ON(rc);
 280
 281                 if (kthread_should_stop())
 282                         break;
 283
 284                 lpfc_work_done(phba);
 285
 286         }
 287         phba->work_wait = NULL;
 288         return 0;
 289 }
 290
 291 /*
 292  * This is only called to handle FC worker events. Since this a rare
 293  * occurance, we allocate a struct lpfc_work_evt structure here instead of
 294  * embedding it in the IOCB.
 295  */
 296 int
 297 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
 298                       uint32_t evt)
 299 {
 300         struct lpfc_work_evt  *evtp;
 301
 302         /*
 303          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
 304          * be queued to worker thread for processing
 305          */
 306         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
 307         if (!evtp)
 308                 return 0;
 309
 310         evtp->evt_arg1  = arg1;
 311         evtp->evt_arg2  = arg2;
 312         evtp->evt       = evt;
 313
 314         list_add_tail(&evtp->evt_listp, &phba->work_list);
 315         spin_lock_irq(phba->host->host_lock);
 316         if (phba->work_wait)
 317                 wake_up(phba->work_wait);
 318         spin_unlock_irq(phba->host->host_lock);
 319
 320         return 1;
 321 }
 322
 323 int
 324 lpfc_linkdown(struct lpfc_hba * phba)
 325 {
 326         struct lpfc_sli       *psli;
 327         struct lpfc_nodelist  *ndlp, *next_ndlp;
 328         struct list_head *listp, *node_list[7];
 329         LPFC_MBOXQ_t     *mb;
 330         int               rc, i;
 331
 332         psli = &phba->sli;
 333         /* sysfs or selective reset may call this routine to clean up */
 334         if (phba->hba_state >= LPFC_LINK_DOWN) {
 335                 if (phba->hba_state == LPFC_LINK_DOWN)
 336                         return 0;
 337
 338                 spin_lock_irq(phba->host->host_lock);
 339                 phba->hba_state = LPFC_LINK_DOWN;
 340                 spin_unlock_irq(phba->host->host_lock);
 341         }
 342
 343         /* Clean up any firmware default rpi's */
 344         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 345                 lpfc_unreg_did(phba, 0xffffffff, mb);
 346                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 347                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 348                     == MBX_NOT_FINISHED) {
 349                         mempool_free( mb, phba->mbox_mem_pool);
 350                 }
 351         }
 352
 353         /* Cleanup any outstanding RSCN activity */
 354         lpfc_els_flush_rscn(phba);
 355
 356         /* Cleanup any outstanding ELS commands */
 357         lpfc_els_flush_cmd(phba);
 358
 359         /* Issue a LINK DOWN event to all nodes */
 360         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
 361         node_list[1] = &phba->fc_nlpmap_list;
 362         node_list[2] = &phba->fc_nlpunmap_list;
 363         node_list[3] = &phba->fc_prli_list;
 364         node_list[4] = &phba->fc_reglogin_list;
 365         node_list[5] = &phba->fc_adisc_list;
 366         node_list[6] = &phba->fc_plogi_list;
 367         for (i = 0; i < 7; i++) {
 368                 listp = node_list[i];
 369                 if (list_empty(listp))
 370                         continue;
 371
 372                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 373
 374                         rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 375                                              NLP_EVT_DEVICE_RECOVERY);
 376
 377                         /* Check config parameter use-adisc or FCP-2 */
 378                         if ((rc != NLP_STE_FREED_NODE) &&
 379                                 (phba->cfg_use_adisc == 0) &&
 380                                 !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
 381                                 /* We know we will have to relogin, so
 382                                  * unreglogin the rpi right now to fail
 383                                  * any outstanding I/Os quickly.
 384                                  */
 385                                 lpfc_unreg_rpi(phba, ndlp);
 386                         }
 387                 }
 388         }
 389
 390         /* free any ndlp's on unused list */
 391         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 392                                 nlp_listp) {
 393                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 394         }
 395
 396         /* Setup myDID for link up if we are in pt2pt mode */
 397         if (phba->fc_flag & FC_PT2PT) {
 398                 phba->fc_myDID = 0;
 399                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 400                         lpfc_config_link(phba, mb);
 401                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 402                         if (lpfc_sli_issue_mbox
 403                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 404                             == MBX_NOT_FINISHED) {
 405                                 mempool_free( mb, phba->mbox_mem_pool);
 406                         }
 407                 }
 408                 spin_lock_irq(phba->host->host_lock);
 409                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
 410                 spin_unlock_irq(phba->host->host_lock);
 411         }
 412         spin_lock_irq(phba->host->host_lock);
 413         phba->fc_flag &= ~FC_LBIT;
 414         spin_unlock_irq(phba->host->host_lock);
 415
 416         /* Turn off discovery timer if its running */
 417         lpfc_can_disctmo(phba);
 418
 419         /* Must process IOCBs on all rings to handle ABORTed I/Os */
 420         return 0;
 421 }
 422
 423 static int
 424 lpfc_linkup(struct lpfc_hba * phba)
 425 {
 426         struct lpfc_nodelist *ndlp, *next_ndlp;
 427         struct list_head *listp, *node_list[7];
 428         int i;
 429
 430         spin_lock_irq(phba->host->host_lock);
 431         phba->hba_state = LPFC_LINK_UP;
 432         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
 433                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
 434         phba->fc_flag |= FC_NDISC_ACTIVE;
 435         phba->fc_ns_retry = 0;
 436         spin_unlock_irq(phba->host->host_lock);
 437
 438
 439         node_list[0] = &phba->fc_plogi_list;
 440         node_list[1] = &phba->fc_adisc_list;
 441         node_list[2] = &phba->fc_reglogin_list;
 442         node_list[3] = &phba->fc_prli_list;
 443         node_list[4] = &phba->fc_nlpunmap_list;
 444         node_list[5] = &phba->fc_nlpmap_list;
 445         node_list[6] = &phba->fc_npr_list;
 446         for (i = 0; i < 7; i++) {
 447                 listp = node_list[i];
 448                 if (list_empty(listp))
 449                         continue;
 450
 451                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 452                         if (phba->fc_flag & FC_LBIT) {
 453                                 if (ndlp->nlp_type & NLP_FABRIC) {
 454                                         /* On Linkup its safe to clean up the
 455                                          * ndlp from Fabric connections.
 456                                          */
 457                                         lpfc_nlp_list(phba, ndlp,
 458                                                         NLP_UNUSED_LIST);
 459                                 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
 460                                         /* Fail outstanding IO now since device
 461                                          * is marked for PLOGI.
 462                                          */
 463                                         lpfc_unreg_rpi(phba, ndlp);
 464                                 }
 465                         }
 466                 }
 467         }
 468
 469         /* free any ndlp's on unused list */
 470         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 471                                 nlp_listp) {
 472                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 473         }
 474
 475         return 0;
 476 }
 477
 478 /*
 479  * This routine handles processing a CLEAR_LA mailbox
 480  * command upon completion. It is setup in the LPFC_MBOXQ
 481  * as the completion routine when the command is
 482  * handed off to the SLI layer.
 483  */
 484 void
 485 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 486 {
 487         struct lpfc_sli *psli;
 488         MAILBOX_t *mb;
 489         uint32_t control;
 490
 491         psli = &phba->sli;
 492         mb = &pmb->mb;
 493         /* Since we don't do discovery right now, turn these off here */
 494         psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 495         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 496         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 497
 498         /* Check for error */
 499         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
 500                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
 501                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 502                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
 503                                 "state x%x\n",
 504                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 505
 506                 phba->hba_state = LPFC_HBA_ERROR;
 507                 goto out;
 508         }
 509
 510         if (phba->fc_flag & FC_ABORT_DISCOVERY)
 511                 goto out;
 512
 513         phba->num_disc_nodes = 0;
 514         /* go thru NPR list and issue ELS PLOGIs */
 515         if (phba->fc_npr_cnt) {
 516                 lpfc_els_disc_plogi(phba);
 517         }
 518
 519         if (!phba->num_disc_nodes) {
 520                 spin_lock_irq(phba->host->host_lock);
 521                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 522                 spin_unlock_irq(phba->host->host_lock);
 523         }
 524
 525         phba->hba_state = LPFC_HBA_READY;
 526
 527 out:
 528         /* Device Discovery completes */
 529         lpfc_printf_log(phba,
 530                          KERN_INFO,
 531                          LOG_DISCOVERY,
 532                          "%d:0225 Device Discovery completes\n",
 533                          phba->brd_no);
 534
 535         mempool_free( pmb, phba->mbox_mem_pool);
 536
 537         spin_lock_irq(phba->host->host_lock);
 538         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
 539         if (phba->fc_flag & FC_ESTABLISH_LINK) {
 540                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
 541         }
 542         spin_unlock_irq(phba->host->host_lock);
 543
 544         del_timer_sync(&phba->fc_estabtmo);
 545
 546         lpfc_can_disctmo(phba);
 547
 548         /* turn on Link Attention interrupts */
 549         spin_lock_irq(phba->host->host_lock);
 550         psli->sli_flag |= LPFC_PROCESS_LA;
 551         control = readl(phba->HCregaddr);
 552         control |= HC_LAINT_ENA;
 553         writel(control, phba->HCregaddr);
 554         readl(phba->HCregaddr); /* flush */
 555         spin_unlock_irq(phba->host->host_lock);
 556
 557         return;
 558 }
 559
 560 static void
 561 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 562 {
 563         struct lpfc_sli *psli = &phba->sli;
 564         int rc;
 565
 566         if (pmb->mb.mbxStatus)
 567                 goto out;
 568
 569         mempool_free(pmb, phba->mbox_mem_pool);
 570
 571         if (phba->fc_topology == TOPOLOGY_LOOP &&
 572                 phba->fc_flag & FC_PUBLIC_LOOP &&
 573                  !(phba->fc_flag & FC_LBIT)) {
 574                         /* Need to wait for FAN - use discovery timer
 575                          * for timeout.  hba_state is identically
 576                          * LPFC_LOCAL_CFG_LINK while waiting for FAN
 577                          */
 578                         lpfc_set_disctmo(phba);
 579                         return;
 580                 }
 581
 582         /* Start discovery by sending a FLOGI. hba_state is identically
 583          * LPFC_FLOGI while waiting for FLOGI cmpl
 584          */
 585         phba->hba_state = LPFC_FLOGI;
 586         lpfc_set_disctmo(phba);
 587         lpfc_initial_flogi(phba);
 588         return;
 589
 590 out:
 591         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 592                         "%d:0306 CONFIG_LINK mbxStatus error x%x "
 593                         "HBA state x%x\n",
 594                         phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
 595
 596         lpfc_linkdown(phba);
 597
 598         phba->hba_state = LPFC_HBA_ERROR;
 599
 600         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 601                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
 602                         phba->brd_no, phba->hba_state);
 603
 604         lpfc_clear_la(phba, pmb);
 605         pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 606         rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 607         if (rc == MBX_NOT_FINISHED) {
 608                 mempool_free(pmb, phba->mbox_mem_pool);
 609                 lpfc_disc_flush_list(phba);
 610                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 611                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 612                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 613                 phba->hba_state = LPFC_HBA_READY;
 614         }
 615         return;
 616 }
 617
 618 static void
 619 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 620 {
 621         struct lpfc_sli *psli = &phba->sli;
 622         MAILBOX_t *mb = &pmb->mb;
 623         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
 624
 625
 626         /* Check for error */
 627         if (mb->mbxStatus) {
 628                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
 629                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 630                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
 631                                 "hba state x%x>\n",
 632                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 633
 634                 lpfc_linkdown(phba);
 635                 phba->hba_state = LPFC_HBA_ERROR;
 636                 goto out;
 637         }
 638
 639         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 640                sizeof (struct serv_parm));
 641         memcpy((uint8_t *) & phba->fc_nodename,
 642                (uint8_t *) & phba->fc_sparam.nodeName,
 643                sizeof (struct lpfc_name));
 644         memcpy((uint8_t *) & phba->fc_portname,
 645                (uint8_t *) & phba->fc_sparam.portName,
 646                sizeof (struct lpfc_name));
 647         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 648         kfree(mp);
 649         mempool_free( pmb, phba->mbox_mem_pool);
 650         return;
 651
 652 out:
 653         pmb->context1 = NULL;
 654         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 655         kfree(mp);
 656         if (phba->hba_state != LPFC_CLEAR_LA) {
 657                 lpfc_clear_la(phba, pmb);
 658                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 659                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 660                     == MBX_NOT_FINISHED) {
 661                         mempool_free( pmb, phba->mbox_mem_pool);
 662                         lpfc_disc_flush_list(phba);
 663                         psli->ring[(psli->ip_ring)].flag &=
 664                             ~LPFC_STOP_IOCB_EVENT;
 665                         psli->ring[(psli->fcp_ring)].flag &=
 666                             ~LPFC_STOP_IOCB_EVENT;
 667                         psli->ring[(psli->next_ring)].flag &=
 668                             ~LPFC_STOP_IOCB_EVENT;
 669                         phba->hba_state = LPFC_HBA_READY;
 670                 }
 671         } else {
 672                 mempool_free( pmb, phba->mbox_mem_pool);
 673         }
 674         return;
 675 }
 676
 677 static void
 678 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
 679 {
 680         int i;
 681         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
 682         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 684
 685         spin_lock_irq(phba->host->host_lock);
 686         switch (la->UlnkSpeed) {
 687                 case LA_1GHZ_LINK:
 688                         phba->fc_linkspeed = LA_1GHZ_LINK;
 689                         break;
 690                 case LA_2GHZ_LINK:
 691                         phba->fc_linkspeed = LA_2GHZ_LINK;
 692                         break;
 693                 case LA_4GHZ_LINK:
 694                         phba->fc_linkspeed = LA_4GHZ_LINK;
 695                         break;
 696                 default:
 697                         phba->fc_linkspeed = LA_UNKNW_LINK;
 698                         break;
 699         }
 700
 701         phba->fc_topology = la->topology;
 702
 703         if (phba->fc_topology == TOPOLOGY_LOOP) {
 704         /* Get Loop Map information */
 705
 706                 if (la->il)
 707                         phba->fc_flag |= FC_LBIT;
 708
 709                 phba->fc_myDID = la->granted_AL_PA;
 710                 i = la->un.lilpBde64.tus.f.bdeSize;
 711
 712                 if (i == 0) {
 713                         phba->alpa_map[0] = 0;
 714                 } else {
 715                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
 716                                 int numalpa, j, k;
 717                                 union {
 718                                         uint8_t pamap[16];
 719                                         struct {
 720                                                 uint32_t wd1;
 721                                                 uint32_t wd2;
 722                                                 uint32_t wd3;
 723                                                 uint32_t wd4;
 724                                         } pa;
 725                                 } un;
 726                                 numalpa = phba->alpa_map[0];
 727                                 j = 0;
 728                                 while (j < numalpa) {
 729                                         memset(un.pamap, 0, 16);
 730                                         for (k = 1; j < numalpa; k++) {
 731                                                 un.pamap[k - 1] =
 732                                                         phba->alpa_map[j + 1];
 733                                                 j++;
 734                                                 if (k == 16)
 735                                                         break;
 736                                         }
 737                                         /* Link Up Event ALPA map */
 738                                         lpfc_printf_log(phba,
 739                                                 KERN_WARNING,
 740                                                 LOG_LINK_EVENT,
 741                                                 "%d:1304 Link Up Event "
 742                                                 "ALPA map Data: x%x "
 743                                                 "x%x x%x x%x\n",
 744                                                 phba->brd_no,
 745                                                 un.pa.wd1, un.pa.wd2,
 746                                                 un.pa.wd3, un.pa.wd4);
 747                                 }
 748                         }
 749                 }
 750         } else {
 751                 phba->fc_myDID = phba->fc_pref_DID;
 752                 phba->fc_flag |= FC_LBIT;
 753         }
 754         spin_unlock_irq(phba->host->host_lock);
 755
 756         lpfc_linkup(phba);
 757         if (sparam_mbox) {
 758                 lpfc_read_sparam(phba, sparam_mbox);
 759                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
 760                 lpfc_sli_issue_mbox(phba, sparam_mbox,
 761                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 762         }
 763
 764         if (cfglink_mbox) {
 765                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
 766                 lpfc_config_link(phba, cfglink_mbox);
 767                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
 768                 lpfc_sli_issue_mbox(phba, cfglink_mbox,
 769                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 770         }
 771 }
 772
 773 static void
 774 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
 775         uint32_t control;
 776         struct lpfc_sli *psli = &phba->sli;
 777
 778         lpfc_linkdown(phba);
 779
 780         /* turn on Link Attention interrupts - no CLEAR_LA needed */
 781         spin_lock_irq(phba->host->host_lock);
 782         psli->sli_flag |= LPFC_PROCESS_LA;
 783         control = readl(phba->HCregaddr);
 784         control |= HC_LAINT_ENA;
 785         writel(control, phba->HCregaddr);
 786         readl(phba->HCregaddr); /* flush */
 787         spin_unlock_irq(phba->host->host_lock);
 788 }
 789
 790 /*
 791  * This routine handles processing a READ_LA mailbox
 792  * command upon completion. It is setup in the LPFC_MBOXQ
 793  * as the completion routine when the command is
 794  * handed off to the SLI layer.
 795  */
 796 void
 797 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 798 {
 799         READ_LA_VAR *la;
 800         MAILBOX_t *mb = &pmb->mb;
 801         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 802
 803         /* Check for error */
 804         if (mb->mbxStatus) {
 805                 lpfc_printf_log(phba,
 806                                 KERN_INFO,
 807                                 LOG_LINK_EVENT,
 808                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
 809                                 phba->brd_no,
 810                                 mb->mbxStatus, phba->hba_state);
 811                 lpfc_mbx_issue_link_down(phba);
 812                 phba->hba_state = LPFC_HBA_ERROR;
 813                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
 814         }
 815
 816         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
 817
 818         memcpy(&phba->alpa_map[0], mp->virt, 128);
 819
 820         spin_lock_irq(phba->host->host_lock);
 821         if (la->pb)
 822                 phba->fc_flag |= FC_BYPASSED_MODE;
 823         else
 824                 phba->fc_flag &= ~FC_BYPASSED_MODE;
 825         spin_unlock_irq(phba->host->host_lock);
 826
 827         if (((phba->fc_eventTag + 1) < la->eventTag) ||
 828              (phba->fc_eventTag == la->eventTag)) {
 829                 phba->fc_stat.LinkMultiEvent++;
 830                 if (la->attType == AT_LINK_UP) {
 831                         if (phba->fc_eventTag != 0)
 832                                 lpfc_linkdown(phba);
 833                 }
 834         }
 835
 836         phba->fc_eventTag = la->eventTag;
 837
 838         if (la->attType == AT_LINK_UP) {
 839                 phba->fc_stat.LinkUp++;
 840                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 841                                 "%d:1303 Link Up Event x%x received "
 842                                 "Data: x%x x%x x%x x%x\n",
 843                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 844                                 la->granted_AL_PA, la->UlnkSpeed,
 845                                 phba->alpa_map[0]);
 846                 lpfc_mbx_process_link_up(phba, la);
 847         } else {
 848                 phba->fc_stat.LinkDown++;
 849                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 850                                 "%d:1305 Link Down Event x%x received "
 851                                 "Data: x%x x%x x%x\n",
 852                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 853                                 phba->hba_state, phba->fc_flag);
 854                 lpfc_mbx_issue_link_down(phba);
 855         }
 856
 857 lpfc_mbx_cmpl_read_la_free_mbuf:
 858         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 859         kfree(mp);
 860         mempool_free(pmb, phba->mbox_mem_pool);
 861         return;
 862 }
 863
 864 /*
 865  * This routine handles processing a REG_LOGIN mailbox
 866  * command upon completion. It is setup in the LPFC_MBOXQ
 867  * as the completion routine when the command is
 868  * handed off to the SLI layer.
 869  */
 870 void
 871 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 872 {
 873         struct lpfc_sli *psli;
 874         MAILBOX_t *mb;
 875         struct lpfc_dmabuf *mp;
 876         struct lpfc_nodelist *ndlp;
 877
 878         psli = &phba->sli;
 879         mb = &pmb->mb;
 880
 881         ndlp = (struct lpfc_nodelist *) pmb->context2;
 882         mp = (struct lpfc_dmabuf *) (pmb->context1);
 883
 884         pmb->context1 = NULL;
 885
 886         /* Good status, call state machine */
 887         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 888         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 889         kfree(mp);
 890         mempool_free( pmb, phba->mbox_mem_pool);
 891
 892         return;
 893 }
 894
 895 /*
 896  * This routine handles processing a Fabric REG_LOGIN mailbox
 897  * command upon completion. It is setup in the LPFC_MBOXQ
 898  * as the completion routine when the command is
 899  * handed off to the SLI layer.
 900  */
 901 void
 902 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 903 {
 904         struct lpfc_sli *psli;
 905         MAILBOX_t *mb;
 906         struct lpfc_dmabuf *mp;
 907         struct lpfc_nodelist *ndlp;
 908         struct lpfc_nodelist *ndlp_fdmi;
 909
 910
 911         psli = &phba->sli;
 912         mb = &pmb->mb;
 913
 914         ndlp = (struct lpfc_nodelist *) pmb->context2;
 915         mp = (struct lpfc_dmabuf *) (pmb->context1);
 916
 917         if (mb->mbxStatus) {
 918                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 919                 kfree(mp);
 920                 mempool_free( pmb, phba->mbox_mem_pool);
 921                 mempool_free( ndlp, phba->nlp_mem_pool);
 922
 923                 /* FLOGI failed, so just use loop map to make discovery list */
 924                 lpfc_disc_list_loopmap(phba);
 925
 926                 /* Start discovery */
 927                 lpfc_disc_start(phba);
 928                 return;
 929         }
 930
 931         pmb->context1 = NULL;
 932
 933         ndlp->nlp_rpi = mb->un.varWords[0];
 934         ndlp->nlp_type |= NLP_FABRIC;
 935         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
 936         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
 937
 938         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 939                 /* This NPort has been assigned an NPort_ID by the fabric as a
 940                  * result of the completed fabric login.  Issue a State Change
 941                  * Registration (SCR) ELS request to the fabric controller
 942                  * (SCR_DID) so that this NPort gets RSCN events from the
 943                  * fabric.
 944                  */
 945                 lpfc_issue_els_scr(phba, SCR_DID, 0);
 946
 947                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
 948                 if (!ndlp) {
 949                         /* Allocate a new node instance. If the pool is empty,
 950                          * start the discovery process and skip the Nameserver
 951                          * login process.  This is attempted again later on.
 952                          * Otherwise, issue a Port Login (PLOGI) to NameServer.
 953                          */
 954                         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
 955                         if (!ndlp) {
 956                                 lpfc_disc_start(phba);
 957                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 958                                 kfree(mp);
 959                                 mempool_free( pmb, phba->mbox_mem_pool);
 960                                 return;
 961                         } else {
 962                                 lpfc_nlp_init(phba, ndlp, NameServer_DID);
 963                                 ndlp->nlp_type |= NLP_FABRIC;
 964                         }
 965                 }
 966                 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
 967                 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
 968                 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
 969                 if (phba->cfg_fdmi_on) {
 970                         ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
 971                                                                 GFP_KERNEL);
 972                         if (ndlp_fdmi) {
 973                                 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
 974                                 ndlp_fdmi->nlp_type |= NLP_FABRIC;
 975                                 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
 976                                 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
 977                         }
 978                 }
 979         }
 980
 981         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 982         kfree(mp);
 983         mempool_free( pmb, phba->mbox_mem_pool);
 984         return;
 985 }
 986
 987 /*
 988  * This routine handles processing a NameServer REG_LOGIN mailbox
 989  * command upon completion. It is setup in the LPFC_MBOXQ
 990  * as the completion routine when the command is
 991  * handed off to the SLI layer.
 992  */
 993 void
 994 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 995 {
 996         struct lpfc_sli *psli;
 997         MAILBOX_t *mb;
 998         struct lpfc_dmabuf *mp;
 999         struct lpfc_nodelist *ndlp;
1000
1001         psli = &phba->sli;
1002         mb = &pmb->mb;
1003
1004         ndlp = (struct lpfc_nodelist *) pmb->context2;
1005         mp = (struct lpfc_dmabuf *) (pmb->context1);
1006
1007         if (mb->mbxStatus) {
1008                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1009                 kfree(mp);
1010                 mempool_free( pmb, phba->mbox_mem_pool);
1011                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1012
1013                 /* RegLogin failed, so just use loop map to make discovery
1014                    list */
1015                 lpfc_disc_list_loopmap(phba);
1016
1017                 /* Start discovery */
1018                 lpfc_disc_start(phba);
1019                 return;
1020         }
1021
1022         pmb->context1 = NULL;
1023
1024         ndlp->nlp_rpi = mb->un.varWords[0];
1025         ndlp->nlp_type |= NLP_FABRIC;
1026         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1027         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1028
1029         if (phba->hba_state < LPFC_HBA_READY) {
1030                 /* Link up discovery requires Fabrib registration. */
1031                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1032                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1033                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1034         }
1035
1036         phba->fc_ns_retry = 0;
1037         /* Good status, issue CT Request to NameServer */
1038         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1039                 /* Cannot issue NameServer Query, so finish up discovery */
1040                 lpfc_disc_start(phba);
1041         }
1042
1043         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1044         kfree(mp);
1045         mempool_free( pmb, phba->mbox_mem_pool);
1046
1047         return;
1048 }
1049
1050 static void
1051 lpfc_register_remote_port(struct lpfc_hba * phba,
1052                             struct lpfc_nodelist * ndlp)
1053 {
1054         struct fc_rport *rport;
1055         struct lpfc_rport_data *rdata;
1056         struct fc_rport_identifiers rport_ids;
1057
1058         /* Remote port has reappeared. Re-register w/ FC transport */
1059         rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1060         rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1061         rport_ids.port_id = ndlp->nlp_DID;
1062         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1063
1064         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1065         if (!rport) {
1066                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1067                            "Warning: fc_remote_port_add failed\n");
1068                 return;
1069         }
1070
1071         /* initialize static port data */
1072         rport->maxframe_size = ndlp->nlp_maxframe;
1073         rport->supported_classes = ndlp->nlp_class_sup;
1074         if ((rport->scsi_target_id != -1) &&
1075                 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1076                 ndlp->nlp_sid = rport->scsi_target_id;
1077         }
1078         rdata = rport->dd_data;
1079         rdata->pnode = ndlp;
1080
1081         if (ndlp->nlp_type & NLP_FCP_TARGET)
1082                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1083         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1084                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1085
1086
1087         if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
1088                 fc_remote_port_rolechg(rport, rport_ids.roles);
1089
1090
1091         return;
1092 }
1093
1094 static void
1095 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1096                             struct lpfc_nodelist * ndlp)
1097 {
1098         struct fc_rport *rport = ndlp->rport;
1099         struct lpfc_rport_data *rdata = rport->dd_data;
1100
1101         ndlp->rport = NULL;
1102         rdata->pnode = NULL;
1103         fc_remote_port_delete(rport);
1104
1105         return;
1106 }
1107
1108 int
1109 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1110 {
1111         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1112         struct lpfc_sli      *psli;
1113
1114         psli = &phba->sli;
1115         /* Sanity check to ensure we are not moving to / from the same list */
1116         if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1117                 if (list != NLP_NO_LIST)
1118                         return 0;
1119
1120         spin_lock_irq(phba->host->host_lock);
1121         switch (nlp->nlp_flag & NLP_LIST_MASK) {
1122         case NLP_NO_LIST: /* Not on any list */
1123                 break;
1124         case NLP_UNUSED_LIST:
1125                 phba->fc_unused_cnt--;
1126                 list_del(&nlp->nlp_listp);
1127                 break;
1128         case NLP_PLOGI_LIST:
1129                 phba->fc_plogi_cnt--;
1130                 list_del(&nlp->nlp_listp);
1131                 break;
1132         case NLP_ADISC_LIST:
1133                 phba->fc_adisc_cnt--;
1134                 list_del(&nlp->nlp_listp);
1135                 break;
1136         case NLP_REGLOGIN_LIST:
1137                 phba->fc_reglogin_cnt--;
1138                 list_del(&nlp->nlp_listp);
1139                 break;
1140         case NLP_PRLI_LIST:
1141                 phba->fc_prli_cnt--;
1142                 list_del(&nlp->nlp_listp);
1143                 break;
1144         case NLP_UNMAPPED_LIST:
1145                 phba->fc_unmap_cnt--;
1146                 list_del(&nlp->nlp_listp);
1147                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1148                 nlp->nlp_type &= ~NLP_FC_NODE;
1149                 phba->nport_event_cnt++;
1150                 if (nlp->rport)
1151                         rport_del = unmapped;
1152                 break;
1153         case NLP_MAPPED_LIST:
1154                 phba->fc_map_cnt--;
1155                 list_del(&nlp->nlp_listp);
1156                 phba->nport_event_cnt++;
1157                 if (nlp->rport)
1158                         rport_del = mapped;
1159                 break;
1160         case NLP_NPR_LIST:
1161                 phba->fc_npr_cnt--;
1162                 list_del(&nlp->nlp_listp);
1163                 /* Stop delay tmo if taking node off NPR list */
1164                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1165                    (list != NLP_NPR_LIST)) {
1166                         spin_unlock_irq(phba->host->host_lock);
1167                         lpfc_cancel_retry_delay_tmo(phba, nlp);
1168                         spin_lock_irq(phba->host->host_lock);
1169                 }
1170                 break;
1171         }
1172
1173         nlp->nlp_flag &= ~NLP_LIST_MASK;
1174
1175         /* Add NPort <did> to <num> list */
1176         lpfc_printf_log(phba,
1177                         KERN_INFO,
1178                         LOG_NODE,
1179                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1180                         phba->brd_no,
1181                         nlp->nlp_DID, list, nlp->nlp_flag);
1182
1183         switch (list) {
1184         case NLP_NO_LIST: /* No list, just remove it */
1185                 spin_unlock_irq(phba->host->host_lock);
1186                 lpfc_nlp_remove(phba, nlp);
1187                 spin_lock_irq(phba->host->host_lock);
1188                 /* as node removed - stop further transport calls */
1189                 rport_del = none;
1190                 break;
1191         case NLP_UNUSED_LIST:
1192                 nlp->nlp_flag |= list;
1193                 /* Put it at the end of the unused list */
1194                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1195                 phba->fc_unused_cnt++;
1196                 break;
1197         case NLP_PLOGI_LIST:
1198                 nlp->nlp_flag |= list;
1199                 /* Put it at the end of the plogi list */
1200                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1201                 phba->fc_plogi_cnt++;
1202                 break;
1203         case NLP_ADISC_LIST:
1204                 nlp->nlp_flag |= list;
1205                 /* Put it at the end of the adisc list */
1206                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1207                 phba->fc_adisc_cnt++;
1208                 break;
1209         case NLP_REGLOGIN_LIST:
1210                 nlp->nlp_flag |= list;
1211                 /* Put it at the end of the reglogin list */
1212                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1213                 phba->fc_reglogin_cnt++;
1214                 break;
1215         case NLP_PRLI_LIST:
1216                 nlp->nlp_flag |= list;
1217                 /* Put it at the end of the prli list */
1218                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1219                 phba->fc_prli_cnt++;
1220                 break;
1221         case NLP_UNMAPPED_LIST:
1222                 rport_add = unmapped;
1223                 /* ensure all vestiges of "mapped" significance are gone */
1224                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1225                 nlp->nlp_flag |= list;
1226                 /* Put it at the end of the unmap list */
1227                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1228                 phba->fc_unmap_cnt++;
1229                 phba->nport_event_cnt++;
1230                 /* stop nodev tmo if running */
1231                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1232                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1233                         spin_unlock_irq(phba->host->host_lock);
1234                         del_timer_sync(&nlp->nlp_tmofunc);
1235                         spin_lock_irq(phba->host->host_lock);
1236                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1237                                 list_del_init(&nlp->nodev_timeout_evt.
1238                                                 evt_listp);
1239
1240                 }
1241                 nlp->nlp_type |= NLP_FC_NODE;
1242                 break;
1243         case NLP_MAPPED_LIST:
1244                 rport_add = mapped;
1245                 nlp->nlp_flag |= list;
1246                 /* Put it at the end of the map list */
1247                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1248                 phba->fc_map_cnt++;
1249                 phba->nport_event_cnt++;
1250                 /* stop nodev tmo if running */
1251                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1252                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1253                         spin_unlock_irq(phba->host->host_lock);
1254                         del_timer_sync(&nlp->nlp_tmofunc);
1255                         spin_lock_irq(phba->host->host_lock);
1256                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1257                                 list_del_init(&nlp->nodev_timeout_evt.
1258                                                 evt_listp);
1259
1260                 }
1261                 break;
1262         case NLP_NPR_LIST:
1263                 nlp->nlp_flag |= list;
1264                 /* Put it at the end of the npr list */
1265                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1266                 phba->fc_npr_cnt++;
1267
1268                 if (!(nlp->nlp_flag & NLP_NODEV_TMO))
1269                         mod_timer(&nlp->nlp_tmofunc,
1270                                         jiffies + HZ * phba->cfg_nodev_tmo);
1271
1272                 nlp->nlp_flag |= NLP_NODEV_TMO;
1273                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1274                 break;
1275         case NLP_JUST_DQ:
1276                 break;
1277         }
1278
1279         spin_unlock_irq(phba->host->host_lock);
1280
1281         /*
1282          * We make all the calls into the transport after we have
1283          * moved the node between lists. This so that we don't
1284          * release the lock while in-between lists.
1285          */
1286
1287         /* Don't upcall midlayer if we're unloading */
1288         if (!(phba->fc_flag & FC_UNLOADING)) {
1289                 /*
1290                  * We revalidate the rport pointer as the "add" function
1291                  * may have removed the remote port.
1292                  */
1293                 if ((rport_del != none) && nlp->rport)
1294                         lpfc_unregister_remote_port(phba, nlp);
1295
1296                 if (rport_add != none) {
1297                         /*
1298                          * Tell the fc transport about the port, if we haven't
1299                          * already. If we have, and it's a scsi entity, be
1300                          * sure to unblock any attached scsi devices
1301                          */
1302                         if (!nlp->rport)
1303                                 lpfc_register_remote_port(phba, nlp);
1304
1305                         /*
1306                          * if we added to Mapped list, but the remote port
1307                          * registration failed or assigned a target id outside
1308                          * our presentable range - move the node to the
1309                          * Unmapped List
1310                          */
1311                         if ((rport_add == mapped) &&
1312                             ((!nlp->rport) ||
1313                              (nlp->rport->scsi_target_id == -1) ||
1314                              (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1315                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1316                                 spin_lock_irq(phba->host->host_lock);
1317                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1318                                 spin_unlock_irq(phba->host->host_lock);
1319                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1320                         }
1321                 }
1322         }
1323         return 0;
1324 }
1325
1326 /*
1327  * Start / ReStart rescue timer for Discovery / RSCN handling
1328  */
1329 void
1330 lpfc_set_disctmo(struct lpfc_hba * phba)
1331 {
1332         uint32_t tmo;
1333
1334         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1335                 /* For FAN, timeout should be greater then edtov */
1336                 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1337         } else {
1338                 /* Normal discovery timeout should be > then ELS/CT timeout
1339                  * FC spec states we need 3 * ratov for CT requests
1340                  */
1341                 tmo = ((phba->fc_ratov * 3) + 3);
1342         }
1343
1344         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1345         spin_lock_irq(phba->host->host_lock);
1346         phba->fc_flag |= FC_DISC_TMO;
1347         spin_unlock_irq(phba->host->host_lock);
1348
1349         /* Start Discovery Timer state <hba_state> */
1350         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1351                         "%d:0247 Start Discovery Timer state x%x "
1352                         "Data: x%x x%lx x%x x%x\n",
1353                         phba->brd_no,
1354                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1355                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1356
1357         return;
1358 }
1359
1360 /*
1361  * Cancel rescue timer for Discovery / RSCN handling
1362  */
1363 int
1364 lpfc_can_disctmo(struct lpfc_hba * phba)
1365 {
1366         /* Turn off discovery timer if its running */
1367         if (phba->fc_flag & FC_DISC_TMO) {
1368                 spin_lock_irq(phba->host->host_lock);
1369                 phba->fc_flag &= ~FC_DISC_TMO;
1370                 spin_unlock_irq(phba->host->host_lock);
1371                 del_timer_sync(&phba->fc_disctmo);
1372                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1373         }
1374
1375         /* Cancel Discovery Timer state <hba_state> */
1376         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1377                         "%d:0248 Cancel Discovery Timer state x%x "
1378                         "Data: x%x x%x x%x\n",
1379                         phba->brd_no, phba->hba_state, phba->fc_flag,
1380                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1381
1382         return 0;
1383 }
1384
1385 /*
1386  * Check specified ring for outstanding IOCB on the SLI queue
1387  * Return true if iocb matches the specified nport
1388  */
1389 int
1390 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1391                     struct lpfc_sli_ring * pring,
1392                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1393 {
1394         struct lpfc_sli *psli;
1395         IOCB_t *icmd;
1396
1397         psli = &phba->sli;
1398         icmd = &iocb->iocb;
1399         if (pring->ringno == LPFC_ELS_RING) {
1400                 switch (icmd->ulpCommand) {
1401                 case CMD_GEN_REQUEST64_CR:
1402                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1403                                 return 1;
1404                 case CMD_ELS_REQUEST64_CR:
1405                 case CMD_XMIT_ELS_RSP64_CX:
1406                         if (iocb->context1 == (uint8_t *) ndlp)
1407                                 return 1;
1408                 }
1409         } else if (pring->ringno == psli->ip_ring) {
1410
1411         } else if (pring->ringno == psli->fcp_ring) {
1412                 /* Skip match check if waiting to relogin to FCP target */
1413                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1414                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1415                         return 0;
1416                 }
1417                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1418                         return 1;
1419                 }
1420         } else if (pring->ringno == psli->next_ring) {
1421
1422         }
1423         return 0;
1424 }
1425
1426 /*
1427  * Free resources / clean up outstanding I/Os
1428  * associated with nlp_rpi in the LPFC_NODELIST entry.
1429  */
1430 static int
1431 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1432 {
1433         struct lpfc_sli *psli;
1434         struct lpfc_sli_ring *pring;
1435         struct lpfc_iocbq *iocb, *next_iocb;
1436         IOCB_t *icmd;
1437         uint32_t rpi, i;
1438
1439         /*
1440          * Everything that matches on txcmplq will be returned
1441          * by firmware with a no rpi error.
1442          */
1443         psli = &phba->sli;
1444         rpi = ndlp->nlp_rpi;
1445         if (rpi) {
1446                 /* Now process each ring */
1447                 for (i = 0; i < psli->num_rings; i++) {
1448                         pring = &psli->ring[i];
1449
1450                         spin_lock_irq(phba->host->host_lock);
1451                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1452                                                 list) {
1453                                 /*
1454                                  * Check to see if iocb matches the nport we are
1455                                  * looking for
1456                                  */
1457                                 if ((lpfc_check_sli_ndlp
1458                                      (phba, pring, iocb, ndlp))) {
1459                                         /* It matches, so deque and call compl
1460                                            with an error */
1461                                         list_del(&iocb->list);
1462                                         pring->txq_cnt--;
1463                                         if (iocb->iocb_cmpl) {
1464                                                 icmd = &iocb->iocb;
1465                                                 icmd->ulpStatus =
1466                                                     IOSTAT_LOCAL_REJECT;
1467                                                 icmd->un.ulpWord[4] =
1468                                                     IOERR_SLI_ABORTED;
1469                                                 spin_unlock_irq(phba->host->
1470                                                                 host_lock);
1471                                                 (iocb->iocb_cmpl) (phba,
1472                                                                    iocb, iocb);
1473                                                 spin_lock_irq(phba->host->
1474                                                               host_lock);
1475                                         } else
1476                                                 lpfc_sli_release_iocbq(phba,
1477                                                                        iocb);
1478                                 }
1479                         }
1480                         spin_unlock_irq(phba->host->host_lock);
1481
1482                 }
1483         }
1484         return 0;
1485 }
1486
1487 /*
1488  * Free rpi associated with LPFC_NODELIST entry.
1489  * This routine is called from lpfc_freenode(), when we are removing
1490  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1491  * LOGO that completes successfully, and we are waiting to PLOGI back
1492  * to the remote NPort. In addition, it is called after we receive
1493  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1494  * we are waiting to PLOGI back to the remote NPort.
1495  */
1496 int
1497 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1498 {
1499         LPFC_MBOXQ_t *mbox;
1500         int rc;
1501
1502         if (ndlp->nlp_rpi) {
1503                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1504                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1505                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1506                         rc = lpfc_sli_issue_mbox
1507                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1508                         if (rc == MBX_NOT_FINISHED)
1509                                 mempool_free( mbox, phba->mbox_mem_pool);
1510                 }
1511                 lpfc_no_rpi(phba, ndlp);
1512                 ndlp->nlp_rpi = 0;
1513                 return 1;
1514         }
1515         return 0;
1516 }
1517
1518 /*
1519  * Free resources associated with LPFC_NODELIST entry
1520  * so it can be freed.
1521  */
1522 static int
1523 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1524 {
1525         LPFC_MBOXQ_t       *mb;
1526         LPFC_MBOXQ_t       *nextmb;
1527         struct lpfc_dmabuf *mp;
1528
1529         /* Cleanup node for NPort <nlp_DID> */
1530         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1531                         "%d:0900 Cleanup node for NPort x%x "
1532                         "Data: x%x x%x x%x\n",
1533                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1534                         ndlp->nlp_state, ndlp->nlp_rpi);
1535
1536         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1537
1538         /*
1539          * if unloading the driver - just leave the remote port in place.
1540          * The driver unload will force the attached devices to detach
1541          * and flush cache's w/o generating flush errors.
1542          */
1543         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1544                 lpfc_unregister_remote_port(phba, ndlp);
1545                 ndlp->nlp_sid = NLP_NO_SID;
1546         }
1547
1548         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1549         if ((mb = phba->sli.mbox_active)) {
1550                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1551                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1552                         mb->context2 = NULL;
1553                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1554                 }
1555         }
1556         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1557                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1558                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1559                         mp = (struct lpfc_dmabuf *) (mb->context1);
1560                         if (mp) {
1561                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1562                                 kfree(mp);
1563                         }
1564                         list_del(&mb->list);
1565                         mempool_free(mb, phba->mbox_mem_pool);
1566                 }
1567         }
1568
1569         lpfc_els_abort(phba,ndlp,0);
1570         spin_lock_irq(phba->host->host_lock);
1571         ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1572         spin_unlock_irq(phba->host->host_lock);
1573         del_timer_sync(&ndlp->nlp_tmofunc);
1574
1575         ndlp->nlp_last_elscmd = 0;
1576         del_timer_sync(&ndlp->nlp_delayfunc);
1577
1578         if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1579                 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1580         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1581                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1582
1583         lpfc_unreg_rpi(phba, ndlp);
1584
1585         return 0;
1586 }
1587
1588 /*
1589  * Check to see if we can free the nlp back to the freelist.
1590  * If we are in the middle of using the nlp in the discovery state
1591  * machine, defer the free till we reach the end of the state machine.
1592  */
1593 int
1594 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1595 {
1596         if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1597                 spin_lock_irq(phba->host->host_lock);
1598                 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1599                 spin_unlock_irq(phba->host->host_lock);
1600                 del_timer_sync(&ndlp->nlp_tmofunc);
1601                 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1602                         list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1603
1604         }
1605
1606
1607         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1608                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1609         }
1610
1611         if (ndlp->nlp_disc_refcnt) {
1612                 spin_lock_irq(phba->host->host_lock);
1613                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1614                 spin_unlock_irq(phba->host->host_lock);
1615         } else {
1616                 lpfc_freenode(phba, ndlp);
1617                 mempool_free( ndlp, phba->nlp_mem_pool);
1618         }
1619         return 0;
1620 }
1621
1622 static int
1623 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1624 {
1625         D_ID mydid;
1626         D_ID ndlpdid;
1627         D_ID matchdid;
1628
1629         if (did == Bcast_DID)
1630                 return 0;
1631
1632         if (ndlp->nlp_DID == 0) {
1633                 return 0;
1634         }
1635
1636         /* First check for Direct match */
1637         if (ndlp->nlp_DID == did)
1638                 return 1;
1639
1640         /* Next check for area/domain identically equals 0 match */
1641         mydid.un.word = phba->fc_myDID;
1642         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1643                 return 0;
1644         }
1645
1646         matchdid.un.word = did;
1647         ndlpdid.un.word = ndlp->nlp_DID;
1648         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1649                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1650                     (mydid.un.b.area == matchdid.un.b.area)) {
1651                         if ((ndlpdid.un.b.domain == 0) &&
1652                             (ndlpdid.un.b.area == 0)) {
1653                                 if (ndlpdid.un.b.id)
1654                                         return 1;
1655                         }
1656                         return 0;
1657                 }
1658
1659                 matchdid.un.word = ndlp->nlp_DID;
1660                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1661                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1662                         if ((matchdid.un.b.domain == 0) &&
1663                             (matchdid.un.b.area == 0)) {
1664                                 if (matchdid.un.b.id)
1665                                         return 1;
1666                         }
1667                 }
1668         }
1669         return 0;
1670 }
1671
1672 /* Search for a nodelist entry on a specific list */
1673 struct lpfc_nodelist *
1674 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1675 {
1676         struct lpfc_nodelist *ndlp, *next_ndlp;
1677         uint32_t data1;
1678
1679         spin_lock_irq(phba->host->host_lock);
1680         if (order & NLP_SEARCH_UNMAPPED) {
1681                 list_for_each_entry_safe(ndlp, next_ndlp,
1682                                          &phba->fc_nlpunmap_list, nlp_listp) {
1683                         if (lpfc_matchdid(phba, ndlp, did)) {
1684                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1685                                          ((uint32_t) ndlp->nlp_xri << 16) |
1686                                          ((uint32_t) ndlp->nlp_type << 8) |
1687                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1688                                 /* FIND node DID unmapped */
1689                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1690                                                 "%d:0929 FIND node DID unmapped"
1691                                                 " Data: x%p x%x x%x x%x\n",
1692                                                 phba->brd_no,
1693                                                 ndlp, ndlp->nlp_DID,
1694                                                 ndlp->nlp_flag, data1);
1695                                 spin_unlock_irq(phba->host->host_lock);
1696                                 return ndlp;
1697                         }
1698                 }
1699         }
1700
1701         if (order & NLP_SEARCH_MAPPED) {
1702                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1703                                         nlp_listp) {
1704                         if (lpfc_matchdid(phba, ndlp, did)) {
1705
1706                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1707                                          ((uint32_t) ndlp->nlp_xri << 16) |
1708                                          ((uint32_t) ndlp->nlp_type << 8) |
1709                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1710                                 /* FIND node DID mapped */
1711                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1712                                                 "%d:0930 FIND node DID mapped "
1713                                                 "Data: x%p x%x x%x x%x\n",
1714                                                 phba->brd_no,
1715                                                 ndlp, ndlp->nlp_DID,
1716                                                 ndlp->nlp_flag, data1);
1717                                 spin_unlock_irq(phba->host->host_lock);
1718                                 return ndlp;
1719                         }
1720                 }
1721         }
1722
1723         if (order & NLP_SEARCH_PLOGI) {
1724                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1725                                         nlp_listp) {
1726                         if (lpfc_matchdid(phba, ndlp, did)) {
1727
1728                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1729                                          ((uint32_t) ndlp->nlp_xri << 16) |
1730                                          ((uint32_t) ndlp->nlp_type << 8) |
1731                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1732                                 /* LOG change to PLOGI */
1733                                 /* FIND node DID plogi */
1734                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1735                                                 "%d:0908 FIND node DID plogi "
1736                                                 "Data: x%p x%x x%x x%x\n",
1737                                                 phba->brd_no,
1738                                                 ndlp, ndlp->nlp_DID,
1739                                                 ndlp->nlp_flag, data1);
1740                                 spin_unlock_irq(phba->host->host_lock);
1741                                 return ndlp;
1742                         }
1743                 }
1744         }
1745
1746         if (order & NLP_SEARCH_ADISC) {
1747                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1748                                         nlp_listp) {
1749                         if (lpfc_matchdid(phba, ndlp, did)) {
1750
1751                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1752                                          ((uint32_t) ndlp->nlp_xri << 16) |
1753                                          ((uint32_t) ndlp->nlp_type << 8) |
1754                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1755                                 /* LOG change to ADISC */
1756                                 /* FIND node DID adisc */
1757                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1758                                                 "%d:0931 FIND node DID adisc "
1759                                                 "Data: x%p x%x x%x x%x\n",
1760                                                 phba->brd_no,
1761                                                 ndlp, ndlp->nlp_DID,
1762                                                 ndlp->nlp_flag, data1);
1763                                 spin_unlock_irq(phba->host->host_lock);
1764                                 return ndlp;
1765                         }
1766                 }
1767         }
1768
1769         if (order & NLP_SEARCH_REGLOGIN) {
1770                 list_for_each_entry_safe(ndlp, next_ndlp,
1771                                          &phba->fc_reglogin_list, nlp_listp) {
1772                         if (lpfc_matchdid(phba, ndlp, did)) {
1773
1774                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1775                                          ((uint32_t) ndlp->nlp_xri << 16) |
1776                                          ((uint32_t) ndlp->nlp_type << 8) |
1777                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1778                                 /* LOG change to REGLOGIN */
1779                                 /* FIND node DID reglogin */
1780                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1781                                                 "%d:0931 FIND node DID reglogin"
1782                                                 " Data: x%p x%x x%x x%x\n",
1783                                                 phba->brd_no,
1784                                                 ndlp, ndlp->nlp_DID,
1785                                                 ndlp->nlp_flag, data1);
1786                                 spin_unlock_irq(phba->host->host_lock);
1787                                 return ndlp;
1788                         }
1789                 }
1790         }
1791
1792         if (order & NLP_SEARCH_PRLI) {
1793                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1794                                         nlp_listp) {
1795                         if (lpfc_matchdid(phba, ndlp, did)) {
1796
1797                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1798                                          ((uint32_t) ndlp->nlp_xri << 16) |
1799                                          ((uint32_t) ndlp->nlp_type << 8) |
1800                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1801                                 /* LOG change to PRLI */
1802                                 /* FIND node DID prli */
1803                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1804                                                 "%d:0931 FIND node DID prli "
1805                                                 "Data: x%p x%x x%x x%x\n",
1806                                                 phba->brd_no,
1807                                                 ndlp, ndlp->nlp_DID,
1808                                                 ndlp->nlp_flag, data1);
1809                                 spin_unlock_irq(phba->host->host_lock);
1810                                 return ndlp;
1811                         }
1812                 }
1813         }
1814
1815         if (order & NLP_SEARCH_NPR) {
1816                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1817                                         nlp_listp) {
1818                         if (lpfc_matchdid(phba, ndlp, did)) {
1819
1820                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1821                                          ((uint32_t) ndlp->nlp_xri << 16) |
1822                                          ((uint32_t) ndlp->nlp_type << 8) |
1823                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1824                                 /* LOG change to NPR */
1825                                 /* FIND node DID npr */
1826                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1827                                                 "%d:0931 FIND node DID npr "
1828                                                 "Data: x%p x%x x%x x%x\n",
1829                                                 phba->brd_no,
1830                                                 ndlp, ndlp->nlp_DID,
1831                                                 ndlp->nlp_flag, data1);
1832                                 spin_unlock_irq(phba->host->host_lock);
1833                                 return ndlp;
1834                         }
1835                 }
1836         }
1837
1838         if (order & NLP_SEARCH_UNUSED) {
1839                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1840                                         nlp_listp) {
1841                         if (lpfc_matchdid(phba, ndlp, did)) {
1842
1843                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1844                                          ((uint32_t) ndlp->nlp_xri << 16) |
1845                                          ((uint32_t) ndlp->nlp_type << 8) |
1846                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1847                                 /* LOG change to UNUSED */
1848                                 /* FIND node DID unused */
1849                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1850                                                 "%d:0931 FIND node DID unused "
1851                                                 "Data: x%p x%x x%x x%x\n",
1852                                                 phba->brd_no,
1853                                                 ndlp, ndlp->nlp_DID,
1854                                                 ndlp->nlp_flag, data1);
1855                                 spin_unlock_irq(phba->host->host_lock);
1856                                 return ndlp;
1857                         }
1858                 }
1859         }
1860
1861         spin_unlock_irq(phba->host->host_lock);
1862
1863         /* FIND node did <did> NOT FOUND */
1864         lpfc_printf_log(phba,
1865                         KERN_INFO,
1866                         LOG_NODE,
1867                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1868                         phba->brd_no, did, order);
1869
1870         /* no match found */
1871         return NULL;
1872 }
1873
1874 struct lpfc_nodelist *
1875 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1876 {
1877         struct lpfc_nodelist *ndlp;
1878         uint32_t flg;
1879
1880         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1881         if (!ndlp) {
1882                 if ((phba->fc_flag & FC_RSCN_MODE) &&
1883                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1884                         return NULL;
1885                 ndlp = (struct lpfc_nodelist *)
1886                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1887                 if (!ndlp)
1888                         return NULL;
1889                 lpfc_nlp_init(phba, ndlp, did);
1890                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1891                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1892                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1893                 return ndlp;
1894         }
1895         if (phba->fc_flag & FC_RSCN_MODE) {
1896                 if (lpfc_rscn_payload_check(phba, did)) {
1897                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1898
1899                         /* Since this node is marked for discovery,
1900                          * delay timeout is not needed.
1901                          */
1902                         if (ndlp->nlp_flag & NLP_DELAY_TMO)
1903                                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1904                 } else {
1905                         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1906                         ndlp = NULL;
1907                 }
1908         } else {
1909                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1910                 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1911                         return NULL;
1912                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1913                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1914                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1915         }
1916         return ndlp;
1917 }
1918
1919 /* Build a list of nodes to discover based on the loopmap */
1920 void
1921 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1922 {
1923         int j;
1924         uint32_t alpa, index;
1925
1926         if (phba->hba_state <= LPFC_LINK_DOWN) {
1927                 return;
1928         }
1929         if (phba->fc_topology != TOPOLOGY_LOOP) {
1930                 return;
1931         }
1932
1933         /* Check for loop map present or not */
1934         if (phba->alpa_map[0]) {
1935                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1936                         alpa = phba->alpa_map[j];
1937
1938                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1939                                 continue;
1940                         }
1941                         lpfc_setup_disc_node(phba, alpa);
1942                 }
1943         } else {
1944                 /* No alpamap, so try all alpa's */
1945                 for (j = 0; j < FC_MAXLOOP; j++) {
1946                         /* If cfg_scan_down is set, start from highest
1947                          * ALPA (0xef) to lowest (0x1).
1948                          */
1949                         if (phba->cfg_scan_down)
1950                                 index = j;
1951                         else
1952                                 index = FC_MAXLOOP - j - 1;
1953                         alpa = lpfcAlpaArray[index];
1954                         if ((phba->fc_myDID & 0xff) == alpa) {
1955                                 continue;
1956                         }
1957
1958                         lpfc_setup_disc_node(phba, alpa);
1959                 }
1960         }
1961         return;
1962 }
1963
1964 /* Start Link up / RSCN discovery on NPR list */
1965 void
1966 lpfc_disc_start(struct lpfc_hba * phba)
1967 {
1968         struct lpfc_sli *psli;
1969         LPFC_MBOXQ_t *mbox;
1970         struct lpfc_nodelist *ndlp, *next_ndlp;
1971         uint32_t did_changed, num_sent;
1972         uint32_t clear_la_pending;
1973         int rc;
1974
1975         psli = &phba->sli;
1976
1977         if (phba->hba_state <= LPFC_LINK_DOWN) {
1978                 return;
1979         }
1980         if (phba->hba_state == LPFC_CLEAR_LA)
1981                 clear_la_pending = 1;
1982         else
1983                 clear_la_pending = 0;
1984
1985         if (phba->hba_state < LPFC_HBA_READY) {
1986                 phba->hba_state = LPFC_DISC_AUTH;
1987         }
1988         lpfc_set_disctmo(phba);
1989
1990         if (phba->fc_prevDID == phba->fc_myDID) {
1991                 did_changed = 0;
1992         } else {
1993                 did_changed = 1;
1994         }
1995         phba->fc_prevDID = phba->fc_myDID;
1996         phba->num_disc_nodes = 0;
1997
1998         /* Start Discovery state <hba_state> */
1999         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2000                         "%d:0202 Start Discovery hba state x%x "
2001                         "Data: x%x x%x x%x\n",
2002                         phba->brd_no, phba->hba_state, phba->fc_flag,
2003                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2004
2005         /* If our did changed, we MUST do PLOGI */
2006         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2007                                 nlp_listp) {
2008                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2009                         if (did_changed) {
2010                                 spin_lock_irq(phba->host->host_lock);
2011                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2012                                 spin_unlock_irq(phba->host->host_lock);
2013                         }
2014                 }
2015         }
2016
2017         /* First do ADISCs - if any */
2018         num_sent = lpfc_els_disc_adisc(phba);
2019
2020         if (num_sent)
2021                 return;
2022
2023         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2024                 /* If we get here, there is nothing to ADISC */
2025                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2026                         phba->hba_state = LPFC_CLEAR_LA;
2027                         lpfc_clear_la(phba, mbox);
2028                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2029                         rc = lpfc_sli_issue_mbox(phba, mbox,
2030                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
2031                         if (rc == MBX_NOT_FINISHED) {
2032                                 mempool_free( mbox, phba->mbox_mem_pool);
2033                                 lpfc_disc_flush_list(phba);
2034                                 psli->ring[(psli->ip_ring)].flag &=
2035                                         ~LPFC_STOP_IOCB_EVENT;
2036                                 psli->ring[(psli->fcp_ring)].flag &=
2037                                         ~LPFC_STOP_IOCB_EVENT;
2038                                 psli->ring[(psli->next_ring)].flag &=
2039                                         ~LPFC_STOP_IOCB_EVENT;
2040                                 phba->hba_state = LPFC_HBA_READY;
2041                         }
2042                 }
2043         } else {
2044                 /* Next do PLOGIs - if any */
2045                 num_sent = lpfc_els_disc_plogi(phba);
2046
2047                 if (num_sent)
2048                         return;
2049
2050                 if (phba->fc_flag & FC_RSCN_MODE) {
2051                         /* Check to see if more RSCNs came in while we
2052                          * were processing this one.
2053                          */
2054                         if ((phba->fc_rscn_id_cnt == 0) &&
2055                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2056                                 spin_lock_irq(phba->host->host_lock);
2057                                 phba->fc_flag &= ~FC_RSCN_MODE;
2058                                 spin_unlock_irq(phba->host->host_lock);
2059                         } else
2060                                 lpfc_els_handle_rscn(phba);
2061                 }
2062         }
2063         return;
2064 }
2065
2066 /*
2067  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2068  *  ring the match the sppecified nodelist.
2069  */
2070 static void
2071 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2072 {
2073         struct lpfc_sli *psli;
2074         IOCB_t     *icmd;
2075         struct lpfc_iocbq    *iocb, *next_iocb;
2076         struct lpfc_sli_ring *pring;
2077         struct lpfc_dmabuf   *mp;
2078
2079         psli = &phba->sli;
2080         pring = &psli->ring[LPFC_ELS_RING];
2081
2082         /* Error matching iocb on txq or txcmplq
2083          * First check the txq.
2084          */
2085         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2086                 if (iocb->context1 != ndlp) {
2087                         continue;
2088                 }
2089                 icmd = &iocb->iocb;
2090                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2091                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2092
2093                         list_del(&iocb->list);
2094                         pring->txq_cnt--;
2095                         lpfc_els_free_iocb(phba, iocb);
2096                 }
2097         }
2098
2099         /* Next check the txcmplq */
2100         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2101                 if (iocb->context1 != ndlp) {
2102                         continue;
2103                 }
2104                 icmd = &iocb->iocb;
2105                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2106                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2107
2108                         iocb->iocb_cmpl = NULL;
2109                         /* context2 = cmd, context2->next = rsp, context3 =
2110                            bpl */
2111                         if (iocb->context2) {
2112                                 /* Free the response IOCB before handling the
2113                                    command. */
2114
2115                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2116                                 mp = list_get_first(&mp->list,
2117                                                     struct lpfc_dmabuf,
2118                                                     list);
2119                                 if (mp) {
2120                                         /* Delay before releasing rsp buffer to
2121                                          * give UNREG mbox a chance to take
2122                                          * effect.
2123                                          */
2124                                         list_add(&mp->list,
2125                                                 &phba->freebufList);
2126                                 }
2127                                 lpfc_mbuf_free(phba,
2128                                                ((struct lpfc_dmabuf *)
2129                                                 iocb->context2)->virt,
2130                                                ((struct lpfc_dmabuf *)
2131                                                 iocb->context2)->phys);
2132                                 kfree(iocb->context2);
2133                         }
2134
2135                         if (iocb->context3) {
2136                                 lpfc_mbuf_free(phba,
2137                                                ((struct lpfc_dmabuf *)
2138                                                 iocb->context3)->virt,
2139                                                ((struct lpfc_dmabuf *)
2140                                                 iocb->context3)->phys);
2141                                 kfree(iocb->context3);
2142                         }
2143                 }
2144         }
2145
2146         return;
2147 }
2148
2149 void
2150 lpfc_disc_flush_list(struct lpfc_hba * phba)
2151 {
2152         struct lpfc_nodelist *ndlp, *next_ndlp;
2153
2154         if (phba->fc_plogi_cnt) {
2155                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2156                                         nlp_listp) {
2157                         lpfc_free_tx(phba, ndlp);
2158                         lpfc_nlp_remove(phba, ndlp);
2159                 }
2160         }
2161         if (phba->fc_adisc_cnt) {
2162                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2163                                         nlp_listp) {
2164                         lpfc_free_tx(phba, ndlp);
2165                         lpfc_nlp_remove(phba, ndlp);
2166                 }
2167         }
2168         return;
2169 }
2170
2171 /*****************************************************************************/
2172 /*
2173  * NAME:     lpfc_disc_timeout
2174  *
2175  * FUNCTION: Fibre Channel driver discovery timeout routine.
2176  *
2177  * EXECUTION ENVIRONMENT: interrupt only
2178  *
2179  * CALLED FROM:
2180  *      Timer function
2181  *
2182  * RETURNS:
2183  *      none
2184  */
2185 /*****************************************************************************/
2186 void
2187 lpfc_disc_timeout(unsigned long ptr)
2188 {
2189         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2190         unsigned long flags = 0;
2191
2192         if (unlikely(!phba))
2193                 return;
2194
2195         spin_lock_irqsave(phba->host->host_lock, flags);
2196         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2197                 phba->work_hba_events |= WORKER_DISC_TMO;
2198                 if (phba->work_wait)
2199                         wake_up(phba->work_wait);
2200         }
2201         spin_unlock_irqrestore(phba->host->host_lock, flags);
2202         return;
2203 }
2204
2205 static void
2206 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2207 {
2208         struct lpfc_sli *psli;
2209         struct lpfc_nodelist *ndlp, *next_ndlp;
2210         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2211         int rc, clrlaerr = 0;
2212
2213         if (unlikely(!phba))
2214                 return;
2215
2216         if (!(phba->fc_flag & FC_DISC_TMO))
2217                 return;
2218
2219         psli = &phba->sli;
2220
2221         spin_lock_irq(phba->host->host_lock);
2222         phba->fc_flag &= ~FC_DISC_TMO;
2223         spin_unlock_irq(phba->host->host_lock);
2224
2225         switch (phba->hba_state) {
2226
2227         case LPFC_LOCAL_CFG_LINK:
2228         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2229                 /* FAN timeout */
2230                 lpfc_printf_log(phba,
2231                                  KERN_WARNING,
2232                                  LOG_DISCOVERY,
2233                                  "%d:0221 FAN timeout\n",
2234                                  phba->brd_no);
2235
2236                 /* Start discovery by sending FLOGI, clean up old rpis */
2237                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2238                                         nlp_listp) {
2239                         if (ndlp->nlp_type & NLP_FABRIC) {
2240                                 /* Clean up the ndlp on Fabric connections */
2241                                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2242                         } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2243                                 /* Fail outstanding IO now since device
2244                                  * is marked for PLOGI.
2245                                  */
2246                                 lpfc_unreg_rpi(phba, ndlp);
2247                         }
2248                 }
2249                 phba->hba_state = LPFC_FLOGI;
2250                 lpfc_set_disctmo(phba);
2251                 lpfc_initial_flogi(phba);
2252                 break;
2253
2254         case LPFC_FLOGI:
2255         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2256                 /* Initial FLOGI timeout */
2257                 lpfc_printf_log(phba,
2258                                  KERN_ERR,
2259                                  LOG_DISCOVERY,
2260                                  "%d:0222 Initial FLOGI timeout\n",
2261                                  phba->brd_no);
2262
2263                 /* Assume no Fabric and go on with discovery.
2264                  * Check for outstanding ELS FLOGI to abort.
2265                  */
2266
2267                 /* FLOGI failed, so just use loop map to make discovery list */
2268                 lpfc_disc_list_loopmap(phba);
2269
2270                 /* Start discovery */
2271                 lpfc_disc_start(phba);
2272                 break;
2273
2274         case LPFC_FABRIC_CFG_LINK:
2275         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2276            NameServer login */
2277                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2278                                 "%d:0223 Timeout while waiting for NameServer "
2279                                 "login\n", phba->brd_no);
2280
2281                 /* Next look for NameServer ndlp */
2282                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2283                 if (ndlp)
2284                         lpfc_nlp_remove(phba, ndlp);
2285                 /* Start discovery */
2286                 lpfc_disc_start(phba);
2287                 break;
2288
2289         case LPFC_NS_QRY:
2290         /* Check for wait for NameServer Rsp timeout */
2291                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2292                                 "%d:0224 NameServer Query timeout "
2293                                 "Data: x%x x%x\n",
2294                                 phba->brd_no,
2295                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2296
2297                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2298                                                                 NameServer_DID);
2299                 if (ndlp) {
2300                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2301                                 /* Try it one more time */
2302                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2303                                 if (rc == 0)
2304                                         break;
2305                         }
2306                         phba->fc_ns_retry = 0;
2307                 }
2308
2309                 /* Nothing to authenticate, so CLEAR_LA right now */
2310                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2311                 if (!clearlambox) {
2312                         clrlaerr = 1;
2313                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2314                                         "%d:0226 Device Discovery "
2315                                         "completion error\n",
2316                                         phba->brd_no);
2317                         phba->hba_state = LPFC_HBA_ERROR;
2318                         break;
2319                 }
2320
2321                 phba->hba_state = LPFC_CLEAR_LA;
2322                 lpfc_clear_la(phba, clearlambox);
2323                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2324                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2325                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2326                 if (rc == MBX_NOT_FINISHED) {
2327                         mempool_free(clearlambox, phba->mbox_mem_pool);
2328                         clrlaerr = 1;
2329                         break;
2330                 }
2331
2332                 /* Setup and issue mailbox INITIALIZE LINK command */
2333                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2334                 if (!initlinkmbox) {
2335                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2336                                         "%d:0226 Device Discovery "
2337                                         "completion error\n",
2338                                         phba->brd_no);
2339                         phba->hba_state = LPFC_HBA_ERROR;
2340                         break;
2341                 }
2342
2343                 lpfc_linkdown(phba);
2344                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2345                                phba->cfg_link_speed);
2346                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2347                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2348                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2349                 if (rc == MBX_NOT_FINISHED)
2350                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2351
2352                 break;
2353
2354         case LPFC_DISC_AUTH:
2355         /* Node Authentication timeout */
2356                 lpfc_printf_log(phba,
2357                                  KERN_ERR,
2358                                  LOG_DISCOVERY,
2359                                  "%d:0227 Node Authentication timeout\n",
2360                                  phba->brd_no);
2361                 lpfc_disc_flush_list(phba);
2362                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2363                 if (!clearlambox) {
2364                         clrlaerr = 1;
2365                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2366                                         "%d:0226 Device Discovery "
2367                                         "completion error\n",
2368                                         phba->brd_no);
2369                         phba->hba_state = LPFC_HBA_ERROR;
2370                         break;
2371                 }
2372                 phba->hba_state = LPFC_CLEAR_LA;
2373                 lpfc_clear_la(phba, clearlambox);
2374                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2375                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2376                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2377                 if (rc == MBX_NOT_FINISHED) {
2378                         mempool_free(clearlambox, phba->mbox_mem_pool);
2379                         clrlaerr = 1;
2380                 }
2381                 break;
2382
2383         case LPFC_CLEAR_LA:
2384         /* CLEAR LA timeout */
2385                 lpfc_printf_log(phba,
2386                                  KERN_ERR,
2387                                  LOG_DISCOVERY,
2388                                  "%d:0228 CLEAR LA timeout\n",
2389                                  phba->brd_no);
2390                 clrlaerr = 1;
2391                 break;
2392
2393         case LPFC_HBA_READY:
2394                 if (phba->fc_flag & FC_RSCN_MODE) {
2395                         lpfc_printf_log(phba,
2396                                         KERN_ERR,
2397                                         LOG_DISCOVERY,
2398                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2399                                         phba->brd_no,
2400                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2401
2402                         /* Cleanup any outstanding ELS commands */
2403                         lpfc_els_flush_cmd(phba);
2404
2405                         lpfc_els_flush_rscn(phba);
2406                         lpfc_disc_flush_list(phba);
2407                 }
2408                 break;
2409         }
2410
2411         if (clrlaerr) {
2412                 lpfc_disc_flush_list(phba);
2413                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2414                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2415                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2416                 phba->hba_state = LPFC_HBA_READY;
2417         }
2418
2419         return;
2420 }
2421
2422 static void
2423 lpfc_nodev_timeout(unsigned long ptr)
2424 {
2425         struct lpfc_hba *phba;
2426         struct lpfc_nodelist *ndlp;
2427         unsigned long iflag;
2428         struct lpfc_work_evt  *evtp;
2429
2430         ndlp = (struct lpfc_nodelist *)ptr;
2431         phba = ndlp->nlp_phba;
2432         evtp = &ndlp->nodev_timeout_evt;
2433         spin_lock_irqsave(phba->host->host_lock, iflag);
2434
2435         if (!list_empty(&evtp->evt_listp)) {
2436                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2437                 return;
2438         }
2439         evtp->evt_arg1  = ndlp;
2440         evtp->evt       = LPFC_EVT_NODEV_TMO;
2441         list_add_tail(&evtp->evt_listp, &phba->work_list);
2442         if (phba->work_wait)
2443                 wake_up(phba->work_wait);
2444
2445         spin_unlock_irqrestore(phba->host->host_lock, iflag);
2446         return;
2447 }
2448
2449
2450 /*
2451  * This routine handles processing a NameServer REG_LOGIN mailbox
2452  * command upon completion. It is setup in the LPFC_MBOXQ
2453  * as the completion routine when the command is
2454  * handed off to the SLI layer.
2455  */
2456 void
2457 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2458 {
2459         struct lpfc_sli *psli;
2460         MAILBOX_t *mb;
2461         struct lpfc_dmabuf *mp;
2462         struct lpfc_nodelist *ndlp;
2463
2464         psli = &phba->sli;
2465         mb = &pmb->mb;
2466
2467         ndlp = (struct lpfc_nodelist *) pmb->context2;
2468         mp = (struct lpfc_dmabuf *) (pmb->context1);
2469
2470         pmb->context1 = NULL;
2471
2472         ndlp->nlp_rpi = mb->un.varWords[0];
2473         ndlp->nlp_type |= NLP_FABRIC;
2474         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2475         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2476
2477         /* Start issuing Fabric-Device Management Interface (FDMI)
2478          * command to 0xfffffa (FDMI well known port)
2479          */
2480         if (phba->cfg_fdmi_on == 1) {
2481                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2482         } else {
2483                 /*
2484                  * Delay issuing FDMI command if fdmi-on=2
2485                  * (supporting RPA/hostnmae)
2486                  */
2487                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2488         }
2489
2490         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2491         kfree(mp);
2492         mempool_free( pmb, phba->mbox_mem_pool);
2493
2494         return;
2495 }
2496
2497 /*
2498  * This routine looks up the ndlp  lists
2499  * for the given RPI. If rpi found
2500  * it return the node list pointer
2501  * else return NULL.
2502  */
2503 struct lpfc_nodelist *
2504 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2505 {
2506         struct lpfc_nodelist *ndlp;
2507         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2508                                     &phba->fc_nlpmap_list,
2509                                     &phba->fc_plogi_list,
2510                                     &phba->fc_adisc_list,
2511                                     &phba->fc_reglogin_list};
2512         int i;
2513
2514         spin_lock_irq(phba->host->host_lock);
2515         for (i = 0; i < ARRAY_SIZE(lists); i++ )
2516                 list_for_each_entry(ndlp, lists[i], nlp_listp)
2517                         if (ndlp->nlp_rpi == rpi) {
2518                                 spin_unlock_irq(phba->host->host_lock);
2519                                 return ndlp;
2520                         }
2521         spin_unlock_irq(phba->host->host_lock);
2522         return NULL;
2523 }
2524
2525 /*
2526  * This routine looks up the ndlp  lists
2527  * for the given WWPN. If WWPN found
2528  * it return the node list pointer
2529  * else return NULL.
2530  */
2531 struct lpfc_nodelist *
2532 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2533                    struct lpfc_name * wwpn)
2534 {
2535         struct lpfc_nodelist *ndlp;
2536         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2537                                     &phba->fc_nlpmap_list,
2538                                     &phba->fc_npr_list,
2539                                     &phba->fc_plogi_list,
2540                                     &phba->fc_adisc_list,
2541                                     &phba->fc_reglogin_list,
2542                                     &phba->fc_prli_list};
2543         uint32_t search[]={NLP_SEARCH_UNMAPPED,
2544                            NLP_SEARCH_MAPPED,
2545                            NLP_SEARCH_NPR,
2546                            NLP_SEARCH_PLOGI,
2547                            NLP_SEARCH_ADISC,
2548                            NLP_SEARCH_REGLOGIN,
2549                            NLP_SEARCH_PRLI};
2550         int i;
2551
2552         spin_lock_irq(phba->host->host_lock);
2553         for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2554                 if (!(order & search[i]))
2555                         continue;
2556                 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2557                         if (memcmp(&ndlp->nlp_portname, wwpn,
2558                                    sizeof(struct lpfc_name)) == 0) {
2559                                 spin_unlock_irq(phba->host->host_lock);
2560                                 return ndlp;
2561                         }
2562                 }
2563         }
2564         spin_unlock_irq(phba->host->host_lock);
2565         return NULL;
2566 }
2567
2568 void
2569 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2570                  uint32_t did)
2571 {
2572         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2573         INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2574         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2575         init_timer(&ndlp->nlp_tmofunc);
2576         ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2577         ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2578         init_timer(&ndlp->nlp_delayfunc);
2579         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2580         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2581         ndlp->nlp_DID = did;
2582         ndlp->nlp_phba = phba;
2583         ndlp->nlp_sid = NLP_NO_SID;
2584         return;
2585 }