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