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_device.h>
  28 #include <scsi/scsi_host.h>
  29 #include <scsi/scsi_transport_fc.h>
  30
  31 #include "lpfc_hw.h"
  32 #include "lpfc_disc.h"
  33 #include "lpfc_sli.h"
  34 #include "lpfc_scsi.h"
  35 #include "lpfc.h"
  36 #include "lpfc_logmsg.h"
  37 #include "lpfc_crtn.h"
  38
  39 /* AlpaArray for assignment of scsid for scan-down and bind_method */
  40 static uint8_t lpfcAlpaArray[] = {
  41         0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
  42         0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
  43         0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
  44         0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
  45         0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
  46         0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
  47         0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
  48         0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
  49         0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
  50         0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
  51         0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
  52         0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
  53         0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
  54 };
  55
  56 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
  57
  58 static void
  59 lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
  60 {
  61         int warn_on = 0;
  62
  63         spin_lock_irq(phba->host->host_lock);
  64         if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
  65                 spin_unlock_irq(phba->host->host_lock);
  66                 return;
  67         }
  68
  69         ndlp->nlp_flag &= ~NLP_NODEV_TMO;
  70
  71         if (ndlp->nlp_sid != NLP_NO_SID) {
  72                 warn_on = 1;
  73                 /* flush the target */
  74                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
  75                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
  76         }
  77         spin_unlock_irq(phba->host->host_lock);
  78
  79         if (warn_on) {
  80                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
  81                                 "%d:0203 Nodev timeout on NPort x%x "
  82                                 "Data: x%x x%x x%x\n",
  83                                 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
  84                                 ndlp->nlp_state, ndlp->nlp_rpi);
  85         } else {
  86                 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
  87                                 "%d:0204 Nodev timeout on NPort x%x "
  88                                 "Data: x%x x%x x%x\n",
  89                                 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
  90                                 ndlp->nlp_state, ndlp->nlp_rpi);
  91         }
  92
  93         lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
  94         return;
  95 }
  96
  97 static void
  98 lpfc_work_list_done(struct lpfc_hba * phba)
  99 {
 100         struct lpfc_work_evt  *evtp = NULL;
 101         struct lpfc_nodelist  *ndlp;
 102         int free_evt;
 103
 104         spin_lock_irq(phba->host->host_lock);
 105         while(!list_empty(&phba->work_list)) {
 106                 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
 107                                  evt_listp);
 108                 spin_unlock_irq(phba->host->host_lock);
 109                 free_evt = 1;
 110                 switch(evtp->evt) {
 111                 case LPFC_EVT_NODEV_TMO:
 112                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 113                         lpfc_process_nodev_timeout(phba, ndlp);
 114                         free_evt = 0;
 115                         break;
 116                 case LPFC_EVT_ELS_RETRY:
 117                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 118                         lpfc_els_retry_delay_handler(ndlp);
 119                         free_evt = 0;
 120                         break;
 121                 case LPFC_EVT_ONLINE:
 122                         *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
 123                         complete((struct completion *)(evtp->evt_arg2));
 124                         break;
 125                 case LPFC_EVT_OFFLINE:
 126                         *(int *)(evtp->evt_arg1)  = lpfc_offline(phba);
 127                         complete((struct completion *)(evtp->evt_arg2));
 128                         break;
 129                 }
 130                 if (free_evt)
 131                         kfree(evtp);
 132                 spin_lock_irq(phba->host->host_lock);
 133         }
 134         spin_unlock_irq(phba->host->host_lock);
 135
 136 }
 137
 138 static void
 139 lpfc_work_done(struct lpfc_hba * phba)
 140 {
 141         struct lpfc_sli_ring *pring;
 142         int i;
 143         uint32_t ha_copy;
 144         uint32_t control;
 145         uint32_t work_hba_events;
 146
 147         spin_lock_irq(phba->host->host_lock);
 148         ha_copy = phba->work_ha;
 149         phba->work_ha = 0;
 150         work_hba_events=phba->work_hba_events;
 151         spin_unlock_irq(phba->host->host_lock);
 152
 153         if(ha_copy & HA_ERATT)
 154                 lpfc_handle_eratt(phba);
 155
 156         if(ha_copy & HA_MBATT)
 157                 lpfc_sli_handle_mb_event(phba);
 158
 159         if(ha_copy & HA_LATT)
 160                 lpfc_handle_latt(phba);
 161
 162         if (work_hba_events & WORKER_DISC_TMO)
 163                 lpfc_disc_timeout_handler(phba);
 164
 165         if (work_hba_events & WORKER_ELS_TMO)
 166                 lpfc_els_timeout_handler(phba);
 167
 168         if (work_hba_events & WORKER_MBOX_TMO)
 169                 lpfc_mbox_timeout_handler(phba);
 170
 171         if (work_hba_events & WORKER_FDMI_TMO)
 172                 lpfc_fdmi_tmo_handler(phba);
 173
 174         spin_lock_irq(phba->host->host_lock);
 175         phba->work_hba_events &= ~work_hba_events;
 176         spin_unlock_irq(phba->host->host_lock);
 177
 178         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
 179                 pring = &phba->sli.ring[i];
 180                 if ((ha_copy & HA_RXATT)
 181                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
 182                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
 183                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
 184                         } else {
 185                                 lpfc_sli_handle_slow_ring_event(phba, pring,
 186                                                                 (ha_copy &
 187                                                                  HA_RXMASK));
 188                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
 189                         }
 190                         /*
 191                          * Turn on Ring interrupts
 192                          */
 193                         spin_lock_irq(phba->host->host_lock);
 194                         control = readl(phba->HCregaddr);
 195                         control |= (HC_R0INT_ENA << i);
 196                         writel(control, phba->HCregaddr);
 197                         readl(phba->HCregaddr); /* flush */
 198                         spin_unlock_irq(phba->host->host_lock);
 199                 }
 200         }
 201
 202         lpfc_work_list_done (phba);
 203
 204 }
 205
 206 static int
 207 check_work_wait_done(struct lpfc_hba *phba) {
 208
 209         spin_lock_irq(phba->host->host_lock);
 210         if (phba->work_ha ||
 211             phba->work_hba_events ||
 212             (!list_empty(&phba->work_list)) ||
 213             kthread_should_stop()) {
 214                 spin_unlock_irq(phba->host->host_lock);
 215                 return 1;
 216         } else {
 217                 spin_unlock_irq(phba->host->host_lock);
 218                 return 0;
 219         }
 220 }
 221
 222 int
 223 lpfc_do_work(void *p)
 224 {
 225         struct lpfc_hba *phba = p;
 226         int rc;
 227         DECLARE_WAIT_QUEUE_HEAD(work_waitq);
 228
 229         set_user_nice(current, -20);
 230         phba->work_wait = &work_waitq;
 231
 232         while (1) {
 233
 234                 rc = wait_event_interruptible(work_waitq,
 235                                                 check_work_wait_done(phba));
 236                 BUG_ON(rc);
 237
 238                 if (kthread_should_stop())
 239                         break;
 240
 241                 lpfc_work_done(phba);
 242
 243         }
 244         phba->work_wait = NULL;
 245         return 0;
 246 }
 247
 248 /*
 249  * This is only called to handle FC worker events. Since this a rare
 250  * occurance, we allocate a struct lpfc_work_evt structure here instead of
 251  * embedding it in the IOCB.
 252  */
 253 int
 254 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
 255                       uint32_t evt)
 256 {
 257         struct lpfc_work_evt  *evtp;
 258
 259         /*
 260          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
 261          * be queued to worker thread for processing
 262          */
 263         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
 264         if (!evtp)
 265                 return 0;
 266
 267         evtp->evt_arg1  = arg1;
 268         evtp->evt_arg2  = arg2;
 269         evtp->evt       = evt;
 270
 271         list_add_tail(&evtp->evt_listp, &phba->work_list);
 272         spin_lock_irq(phba->host->host_lock);
 273         if (phba->work_wait)
 274                 wake_up(phba->work_wait);
 275         spin_unlock_irq(phba->host->host_lock);
 276
 277         return 1;
 278 }
 279
 280 int
 281 lpfc_linkdown(struct lpfc_hba * phba)
 282 {
 283         struct lpfc_sli       *psli;
 284         struct lpfc_nodelist  *ndlp, *next_ndlp;
 285         struct list_head *listp;
 286         struct list_head *node_list[7];
 287         LPFC_MBOXQ_t     *mb;
 288         int               rc, i;
 289
 290         psli = &phba->sli;
 291
 292         spin_lock_irq(phba->host->host_lock);
 293         phba->hba_state = LPFC_LINK_DOWN;
 294         spin_unlock_irq(phba->host->host_lock);
 295
 296         /* Clean up any firmware default rpi's */
 297         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 298                 lpfc_unreg_did(phba, 0xffffffff, mb);
 299                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 300                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 301                     == MBX_NOT_FINISHED) {
 302                         mempool_free( mb, phba->mbox_mem_pool);
 303                 }
 304         }
 305
 306         /* Cleanup any outstanding RSCN activity */
 307         lpfc_els_flush_rscn(phba);
 308
 309         /* Cleanup any outstanding ELS commands */
 310         lpfc_els_flush_cmd(phba);
 311
 312         /* Issue a LINK DOWN event to all nodes */
 313         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
 314         node_list[1] = &phba->fc_nlpmap_list;
 315         node_list[2] = &phba->fc_nlpunmap_list;
 316         node_list[3] = &phba->fc_prli_list;
 317         node_list[4] = &phba->fc_reglogin_list;
 318         node_list[5] = &phba->fc_adisc_list;
 319         node_list[6] = &phba->fc_plogi_list;
 320         for (i = 0; i < 7; i++) {
 321                 listp = node_list[i];
 322                 if (list_empty(listp))
 323                         continue;
 324
 325                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 326                         /* Fabric nodes are not handled thru state machine for
 327                            link down */
 328                         if (ndlp->nlp_type & NLP_FABRIC) {
 329                                 /* Remove ALL Fabric nodes except Fabric_DID */
 330                                 if (ndlp->nlp_DID != Fabric_DID) {
 331                                         /* Take it off current list and free */
 332                                         lpfc_nlp_list(phba, ndlp,
 333                                                 NLP_NO_LIST);
 334                                 }
 335                         }
 336                         else {
 337
 338                                 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 339                                                      NLP_EVT_DEVICE_RECOVERY);
 340
 341                                 /* Check config parameter use-adisc or FCP-2 */
 342                                 if ((rc != NLP_STE_FREED_NODE) &&
 343                                         (phba->cfg_use_adisc == 0) &&
 344                                         !(ndlp->nlp_fcp_info &
 345                                                 NLP_FCP_2_DEVICE)) {
 346                                         /* We know we will have to relogin, so
 347                                          * unreglogin the rpi right now to fail
 348                                          * any outstanding I/Os quickly.
 349                                          */
 350                                         lpfc_unreg_rpi(phba, ndlp);
 351                                 }
 352                         }
 353                 }
 354         }
 355
 356         /* free any ndlp's on unused list */
 357         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 358                                 nlp_listp) {
 359                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 360         }
 361
 362         /* Setup myDID for link up if we are in pt2pt mode */
 363         if (phba->fc_flag & FC_PT2PT) {
 364                 phba->fc_myDID = 0;
 365                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 366                         lpfc_config_link(phba, mb);
 367                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 368                         if (lpfc_sli_issue_mbox
 369                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 370                             == MBX_NOT_FINISHED) {
 371                                 mempool_free( mb, phba->mbox_mem_pool);
 372                         }
 373                 }
 374                 spin_lock_irq(phba->host->host_lock);
 375                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
 376                 spin_unlock_irq(phba->host->host_lock);
 377         }
 378         spin_lock_irq(phba->host->host_lock);
 379         phba->fc_flag &= ~FC_LBIT;
 380         spin_unlock_irq(phba->host->host_lock);
 381
 382         /* Turn off discovery timer if its running */
 383         lpfc_can_disctmo(phba);
 384
 385         /* Must process IOCBs on all rings to handle ABORTed I/Os */
 386         return (0);
 387 }
 388
 389 static int
 390 lpfc_linkup(struct lpfc_hba * phba)
 391 {
 392         struct lpfc_nodelist *ndlp, *next_ndlp;
 393
 394         spin_lock_irq(phba->host->host_lock);
 395         phba->hba_state = LPFC_LINK_UP;
 396         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
 397                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
 398         phba->fc_flag |= FC_NDISC_ACTIVE;
 399         phba->fc_ns_retry = 0;
 400         spin_unlock_irq(phba->host->host_lock);
 401
 402
 403         /*
 404          * Clean up old Fabric NLP_FABRIC logins.
 405          */
 406         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
 407                                 nlp_listp) {
 408                 if (ndlp->nlp_DID == Fabric_DID) {
 409                         /* Take it off current list and free */
 410                         lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 411                 }
 412         }
 413
 414         /* free any ndlp's on unused list */
 415         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 416                                 nlp_listp) {
 417                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 418         }
 419
 420         return 0;
 421 }
 422
 423 /*
 424  * This routine handles processing a CLEAR_LA mailbox
 425  * command upon completion. It is setup in the LPFC_MBOXQ
 426  * as the completion routine when the command is
 427  * handed off to the SLI layer.
 428  */
 429 void
 430 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 431 {
 432         struct lpfc_sli *psli;
 433         MAILBOX_t *mb;
 434         uint32_t control;
 435
 436         psli = &phba->sli;
 437         mb = &pmb->mb;
 438         /* Since we don't do discovery right now, turn these off here */
 439         psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 440         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 441         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 442
 443         /* Check for error */
 444         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
 445                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
 446                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 447                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
 448                                 "state x%x\n",
 449                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 450
 451                 phba->hba_state = LPFC_HBA_ERROR;
 452                 goto out;
 453         }
 454
 455         if (phba->fc_flag & FC_ABORT_DISCOVERY)
 456                 goto out;
 457
 458         phba->num_disc_nodes = 0;
 459         /* go thru NPR list and issue ELS PLOGIs */
 460         if (phba->fc_npr_cnt) {
 461                 lpfc_els_disc_plogi(phba);
 462         }
 463
 464         if(!phba->num_disc_nodes) {
 465                 spin_lock_irq(phba->host->host_lock);
 466                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 467                 spin_unlock_irq(phba->host->host_lock);
 468         }
 469
 470         phba->hba_state = LPFC_HBA_READY;
 471
 472 out:
 473         /* Device Discovery completes */
 474         lpfc_printf_log(phba,
 475                          KERN_INFO,
 476                          LOG_DISCOVERY,
 477                          "%d:0225 Device Discovery completes\n",
 478                          phba->brd_no);
 479
 480         mempool_free( pmb, phba->mbox_mem_pool);
 481
 482         spin_lock_irq(phba->host->host_lock);
 483         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
 484         if (phba->fc_flag & FC_ESTABLISH_LINK) {
 485                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
 486         }
 487         spin_unlock_irq(phba->host->host_lock);
 488
 489         del_timer_sync(&phba->fc_estabtmo);
 490
 491         lpfc_can_disctmo(phba);
 492
 493         /* turn on Link Attention interrupts */
 494         spin_lock_irq(phba->host->host_lock);
 495         psli->sli_flag |= LPFC_PROCESS_LA;
 496         control = readl(phba->HCregaddr);
 497         control |= HC_LAINT_ENA;
 498         writel(control, phba->HCregaddr);
 499         readl(phba->HCregaddr); /* flush */
 500         spin_unlock_irq(phba->host->host_lock);
 501
 502         return;
 503 }
 504
 505 static void
 506 lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 507 {
 508         struct lpfc_sli *psli;
 509         MAILBOX_t *mb;
 510
 511         psli = &phba->sli;
 512         mb = &pmb->mb;
 513         /* Check for error */
 514         if (mb->mbxStatus) {
 515                 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
 516                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 517                                 "%d:0306 CONFIG_LINK mbxStatus error x%x "
 518                                 "HBA state x%x\n",
 519                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 520
 521                 lpfc_linkdown(phba);
 522                 phba->hba_state = LPFC_HBA_ERROR;
 523                 goto out;
 524         }
 525
 526         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
 527                 if (phba->fc_topology == TOPOLOGY_LOOP) {
 528                         /* If we are public loop and L bit was set */
 529                         if ((phba->fc_flag & FC_PUBLIC_LOOP) &&
 530                             !(phba->fc_flag & FC_LBIT)) {
 531                                 /* Need to wait for FAN - use discovery timer
 532                                  * for timeout.  hba_state is identically
 533                                  * LPFC_LOCAL_CFG_LINK while waiting for FAN
 534                                  */
 535                                 lpfc_set_disctmo(phba);
 536                                 mempool_free( pmb, phba->mbox_mem_pool);
 537                                 return;
 538                         }
 539                 }
 540
 541                 /* Start discovery by sending a FLOGI hba_state is identically
 542                  * LPFC_FLOGI while waiting for FLOGI cmpl
 543                  */
 544                 phba->hba_state = LPFC_FLOGI;
 545                 lpfc_set_disctmo(phba);
 546                 lpfc_initial_flogi(phba);
 547                 mempool_free( pmb, phba->mbox_mem_pool);
 548                 return;
 549         }
 550         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 551                 mempool_free( pmb, phba->mbox_mem_pool);
 552                 return;
 553         }
 554
 555 out:
 556         /* CONFIG_LINK bad hba state <hba_state> */
 557         lpfc_printf_log(phba,
 558                         KERN_ERR,
 559                         LOG_DISCOVERY,
 560                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
 561                         phba->brd_no, phba->hba_state);
 562
 563         if (phba->hba_state != LPFC_CLEAR_LA) {
 564                 lpfc_clear_la(phba, pmb);
 565                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 566                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 567                     == MBX_NOT_FINISHED) {
 568                         mempool_free( pmb, phba->mbox_mem_pool);
 569                         lpfc_disc_flush_list(phba);
 570                         psli->ring[(psli->ip_ring)].flag &=
 571                                 ~LPFC_STOP_IOCB_EVENT;
 572                         psli->ring[(psli->fcp_ring)].flag &=
 573                                 ~LPFC_STOP_IOCB_EVENT;
 574                         psli->ring[(psli->next_ring)].flag &=
 575                                 ~LPFC_STOP_IOCB_EVENT;
 576                         phba->hba_state = LPFC_HBA_READY;
 577                 }
 578         } else {
 579                 mempool_free( pmb, phba->mbox_mem_pool);
 580         }
 581         return;
 582 }
 583
 584 static void
 585 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 586 {
 587         struct lpfc_sli *psli = &phba->sli;
 588         MAILBOX_t *mb = &pmb->mb;
 589         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
 590
 591
 592         /* Check for error */
 593         if (mb->mbxStatus) {
 594                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
 595                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 596                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
 597                                 "hba state x%x>\n",
 598                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 599
 600                 lpfc_linkdown(phba);
 601                 phba->hba_state = LPFC_HBA_ERROR;
 602                 goto out;
 603         }
 604
 605         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 606                sizeof (struct serv_parm));
 607         memcpy((uint8_t *) & phba->fc_nodename,
 608                (uint8_t *) & phba->fc_sparam.nodeName,
 609                sizeof (struct lpfc_name));
 610         memcpy((uint8_t *) & phba->fc_portname,
 611                (uint8_t *) & phba->fc_sparam.portName,
 612                sizeof (struct lpfc_name));
 613         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 614         kfree(mp);
 615         mempool_free( pmb, phba->mbox_mem_pool);
 616         return;
 617
 618 out:
 619         pmb->context1 = NULL;
 620         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 621         kfree(mp);
 622         if (phba->hba_state != LPFC_CLEAR_LA) {
 623                 lpfc_clear_la(phba, pmb);
 624                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 625                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 626                     == MBX_NOT_FINISHED) {
 627                         mempool_free( pmb, phba->mbox_mem_pool);
 628                         lpfc_disc_flush_list(phba);
 629                         psli->ring[(psli->ip_ring)].flag &=
 630                             ~LPFC_STOP_IOCB_EVENT;
 631                         psli->ring[(psli->fcp_ring)].flag &=
 632                             ~LPFC_STOP_IOCB_EVENT;
 633                         psli->ring[(psli->next_ring)].flag &=
 634                             ~LPFC_STOP_IOCB_EVENT;
 635                         phba->hba_state = LPFC_HBA_READY;
 636                 }
 637         } else {
 638                 mempool_free( pmb, phba->mbox_mem_pool);
 639         }
 640         return;
 641 }
 642
 643 static void
 644 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
 645 {
 646         int i;
 647         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
 648         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 649         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 650
 651         spin_lock_irq(phba->host->host_lock);
 652         switch(la->UlnkSpeed) {
 653                 case LA_1GHZ_LINK:
 654                         phba->fc_linkspeed = LA_1GHZ_LINK;
 655                         break;
 656                 case LA_2GHZ_LINK:
 657                         phba->fc_linkspeed = LA_2GHZ_LINK;
 658                         break;
 659                 case LA_4GHZ_LINK:
 660                         phba->fc_linkspeed = LA_4GHZ_LINK;
 661                         break;
 662                 default:
 663                         phba->fc_linkspeed = LA_UNKNW_LINK;
 664                         break;
 665         }
 666
 667         phba->fc_topology = la->topology;
 668
 669         if (phba->fc_topology == TOPOLOGY_LOOP) {
 670         /* Get Loop Map information */
 671
 672                 if (la->il)
 673                         phba->fc_flag |= FC_LBIT;
 674
 675                 phba->fc_myDID = la->granted_AL_PA;
 676                 i = la->un.lilpBde64.tus.f.bdeSize;
 677
 678                 if (i == 0) {
 679                         phba->alpa_map[0] = 0;
 680                 } else {
 681                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
 682                                 int numalpa, j, k;
 683                                 union {
 684                                         uint8_t pamap[16];
 685                                         struct {
 686                                                 uint32_t wd1;
 687                                                 uint32_t wd2;
 688                                                 uint32_t wd3;
 689                                                 uint32_t wd4;
 690                                         } pa;
 691                                 } un;
 692                                 numalpa = phba->alpa_map[0];
 693                                 j = 0;
 694                                 while (j < numalpa) {
 695                                         memset(un.pamap, 0, 16);
 696                                         for (k = 1; j < numalpa; k++) {
 697                                                 un.pamap[k - 1] =
 698                                                         phba->alpa_map[j + 1];
 699                                                 j++;
 700                                                 if (k == 16)
 701                                                         break;
 702                                         }
 703                                         /* Link Up Event ALPA map */
 704                                         lpfc_printf_log(phba,
 705                                                 KERN_WARNING,
 706                                                 LOG_LINK_EVENT,
 707                                                 "%d:1304 Link Up Event "
 708                                                 "ALPA map Data: x%x "
 709                                                 "x%x x%x x%x\n",
 710                                                 phba->brd_no,
 711                                                 un.pa.wd1, un.pa.wd2,
 712                                                 un.pa.wd3, un.pa.wd4);
 713                                 }
 714                         }
 715                 }
 716         } else {
 717                 phba->fc_myDID = phba->fc_pref_DID;
 718                 phba->fc_flag |= FC_LBIT;
 719         }
 720         spin_unlock_irq(phba->host->host_lock);
 721
 722         lpfc_linkup(phba);
 723         if (sparam_mbox) {
 724                 lpfc_read_sparam(phba, sparam_mbox);
 725                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
 726                 lpfc_sli_issue_mbox(phba, sparam_mbox,
 727                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 728         }
 729
 730         if (cfglink_mbox) {
 731                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
 732                 lpfc_config_link(phba, cfglink_mbox);
 733                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link;
 734                 lpfc_sli_issue_mbox(phba, cfglink_mbox,
 735                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 736         }
 737 }
 738
 739 static void
 740 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
 741         uint32_t control;
 742         struct lpfc_sli *psli = &phba->sli;
 743
 744         lpfc_linkdown(phba);
 745
 746         /* turn on Link Attention interrupts - no CLEAR_LA needed */
 747         spin_lock_irq(phba->host->host_lock);
 748         psli->sli_flag |= LPFC_PROCESS_LA;
 749         control = readl(phba->HCregaddr);
 750         control |= HC_LAINT_ENA;
 751         writel(control, phba->HCregaddr);
 752         readl(phba->HCregaddr); /* flush */
 753         spin_unlock_irq(phba->host->host_lock);
 754 }
 755
 756 /*
 757  * This routine handles processing a READ_LA mailbox
 758  * command upon completion. It is setup in the LPFC_MBOXQ
 759  * as the completion routine when the command is
 760  * handed off to the SLI layer.
 761  */
 762 void
 763 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 764 {
 765         READ_LA_VAR *la;
 766         MAILBOX_t *mb = &pmb->mb;
 767         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 768
 769         /* Check for error */
 770         if (mb->mbxStatus) {
 771                 lpfc_printf_log(phba,
 772                                 KERN_INFO,
 773                                 LOG_LINK_EVENT,
 774                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
 775                                 phba->brd_no,
 776                                 mb->mbxStatus, phba->hba_state);
 777                 lpfc_mbx_issue_link_down(phba);
 778                 phba->hba_state = LPFC_HBA_ERROR;
 779                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
 780         }
 781
 782         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
 783
 784         memcpy(&phba->alpa_map[0], mp->virt, 128);
 785
 786         if (((phba->fc_eventTag + 1) < la->eventTag) ||
 787              (phba->fc_eventTag == la->eventTag)) {
 788                 phba->fc_stat.LinkMultiEvent++;
 789                 if (la->attType == AT_LINK_UP) {
 790                         if (phba->fc_eventTag != 0)
 791                                 lpfc_linkdown(phba);
 792                 }
 793         }
 794
 795         phba->fc_eventTag = la->eventTag;
 796
 797         if (la->attType == AT_LINK_UP) {
 798                 phba->fc_stat.LinkUp++;
 799                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 800                                 "%d:1303 Link Up Event x%x received "
 801                                 "Data: x%x x%x x%x x%x\n",
 802                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 803                                 la->granted_AL_PA, la->UlnkSpeed,
 804                                 phba->alpa_map[0]);
 805                 lpfc_mbx_process_link_up(phba, la);
 806         } else {
 807                 phba->fc_stat.LinkDown++;
 808                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 809                                 "%d:1305 Link Down Event x%x received "
 810                                 "Data: x%x x%x x%x\n",
 811                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 812                                 phba->hba_state, phba->fc_flag);
 813                 lpfc_mbx_issue_link_down(phba);
 814         }
 815
 816 lpfc_mbx_cmpl_read_la_free_mbuf:
 817         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 818         kfree(mp);
 819         mempool_free(pmb, phba->mbox_mem_pool);
 820         return;
 821 }
 822
 823 /*
 824  * This routine handles processing a REG_LOGIN mailbox
 825  * command upon completion. It is setup in the LPFC_MBOXQ
 826  * as the completion routine when the command is
 827  * handed off to the SLI layer.
 828  */
 829 void
 830 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 831 {
 832         struct lpfc_sli *psli;
 833         MAILBOX_t *mb;
 834         struct lpfc_dmabuf *mp;
 835         struct lpfc_nodelist *ndlp;
 836
 837         psli = &phba->sli;
 838         mb = &pmb->mb;
 839
 840         ndlp = (struct lpfc_nodelist *) pmb->context2;
 841         mp = (struct lpfc_dmabuf *) (pmb->context1);
 842
 843         pmb->context1 = NULL;
 844
 845         /* Good status, call state machine */
 846         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 847         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 848         kfree(mp);
 849         mempool_free( pmb, phba->mbox_mem_pool);
 850
 851         return;
 852 }
 853
 854 /*
 855  * This routine handles processing a Fabric REG_LOGIN mailbox
 856  * command upon completion. It is setup in the LPFC_MBOXQ
 857  * as the completion routine when the command is
 858  * handed off to the SLI layer.
 859  */
 860 void
 861 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 862 {
 863         struct lpfc_sli *psli;
 864         MAILBOX_t *mb;
 865         struct lpfc_dmabuf *mp;
 866         struct lpfc_nodelist *ndlp;
 867         struct lpfc_nodelist *ndlp_fdmi;
 868
 869
 870         psli = &phba->sli;
 871         mb = &pmb->mb;
 872
 873         ndlp = (struct lpfc_nodelist *) pmb->context2;
 874         mp = (struct lpfc_dmabuf *) (pmb->context1);
 875
 876         if (mb->mbxStatus) {
 877                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 878                 kfree(mp);
 879                 mempool_free( pmb, phba->mbox_mem_pool);
 880                 mempool_free( ndlp, phba->nlp_mem_pool);
 881
 882                 /* FLOGI failed, so just use loop map to make discovery list */
 883                 lpfc_disc_list_loopmap(phba);
 884
 885                 /* Start discovery */
 886                 lpfc_disc_start(phba);
 887                 return;
 888         }
 889
 890         pmb->context1 = NULL;
 891
 892         if (ndlp->nlp_rpi != 0)
 893                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
 894         ndlp->nlp_rpi = mb->un.varWords[0];
 895         lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
 896         ndlp->nlp_type |= NLP_FABRIC;
 897         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
 898         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
 899
 900         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 901                 /* This NPort has been assigned an NPort_ID by the fabric as a
 902                  * result of the completed fabric login.  Issue a State Change
 903                  * Registration (SCR) ELS request to the fabric controller
 904                  * (SCR_DID) so that this NPort gets RSCN events from the
 905                  * fabric.
 906                  */
 907                 lpfc_issue_els_scr(phba, SCR_DID, 0);
 908
 909                 /* Allocate a new node instance.  If the pool is empty, just
 910                  * start the discovery process and skip the Nameserver login
 911                  * process.  This is attempted again later on.  Otherwise, issue
 912                  * a Port Login (PLOGI) to the NameServer
 913                  */
 914                 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
 915                     == 0) {
 916                         lpfc_disc_start(phba);
 917                 } else {
 918                         lpfc_nlp_init(phba, ndlp, NameServer_DID);
 919                         ndlp->nlp_type |= NLP_FABRIC;
 920                         ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
 921                         lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
 922                         lpfc_issue_els_plogi(phba, ndlp, 0);
 923                         if (phba->cfg_fdmi_on) {
 924                                 if ((ndlp_fdmi = mempool_alloc(
 925                                                        phba->nlp_mem_pool,
 926                                                        GFP_KERNEL))) {
 927                                         lpfc_nlp_init(phba, ndlp_fdmi,
 928                                                 FDMI_DID);
 929                                         ndlp_fdmi->nlp_type |= NLP_FABRIC;
 930                                         ndlp_fdmi->nlp_state =
 931                                             NLP_STE_PLOGI_ISSUE;
 932                                         lpfc_issue_els_plogi(phba, ndlp_fdmi,
 933                                                              0);
 934                                 }
 935                         }
 936                 }
 937         }
 938
 939         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 940         kfree(mp);
 941         mempool_free( pmb, phba->mbox_mem_pool);
 942
 943         return;
 944 }
 945
 946 /*
 947  * This routine handles processing a NameServer REG_LOGIN mailbox
 948  * command upon completion. It is setup in the LPFC_MBOXQ
 949  * as the completion routine when the command is
 950  * handed off to the SLI layer.
 951  */
 952 void
 953 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 954 {
 955         struct lpfc_sli *psli;
 956         MAILBOX_t *mb;
 957         struct lpfc_dmabuf *mp;
 958         struct lpfc_nodelist *ndlp;
 959
 960         psli = &phba->sli;
 961         mb = &pmb->mb;
 962
 963         ndlp = (struct lpfc_nodelist *) pmb->context2;
 964         mp = (struct lpfc_dmabuf *) (pmb->context1);
 965
 966         if (mb->mbxStatus) {
 967                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 968                 kfree(mp);
 969                 mempool_free( pmb, phba->mbox_mem_pool);
 970                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 971
 972                 /* RegLogin failed, so just use loop map to make discovery
 973                    list */
 974                 lpfc_disc_list_loopmap(phba);
 975
 976                 /* Start discovery */
 977                 lpfc_disc_start(phba);
 978                 return;
 979         }
 980
 981         pmb->context1 = NULL;
 982
 983         if (ndlp->nlp_rpi != 0)
 984                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
 985         ndlp->nlp_rpi = mb->un.varWords[0];
 986         lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
 987         ndlp->nlp_type |= NLP_FABRIC;
 988         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
 989         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
 990
 991         if (phba->hba_state < LPFC_HBA_READY) {
 992                 /* Link up discovery requires Fabrib registration. */
 993                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
 994                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
 995                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
 996         }
 997
 998         phba->fc_ns_retry = 0;
 999         /* Good status, issue CT Request to NameServer */
1000         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1001                 /* Cannot issue NameServer Query, so finish up discovery */
1002                 lpfc_disc_start(phba);
1003         }
1004
1005         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1006         kfree(mp);
1007         mempool_free( pmb, phba->mbox_mem_pool);
1008
1009         return;
1010 }
1011
1012 static void
1013 lpfc_register_remote_port(struct lpfc_hba * phba,
1014                             struct lpfc_nodelist * ndlp)
1015 {
1016         struct fc_rport *rport;
1017         struct lpfc_rport_data *rdata;
1018         struct fc_rport_identifiers rport_ids;
1019         uint64_t wwn;
1020
1021         /* Remote port has reappeared. Re-register w/ FC transport */
1022         memcpy(&wwn, &ndlp->nlp_nodename, sizeof(uint64_t));
1023         rport_ids.node_name = be64_to_cpu(wwn);
1024         memcpy(&wwn, &ndlp->nlp_portname, sizeof(uint64_t));
1025         rport_ids.port_name = be64_to_cpu(wwn);
1026         rport_ids.port_id = ndlp->nlp_DID;
1027         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1028         if (ndlp->nlp_type & NLP_FCP_TARGET)
1029                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1030         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1031                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1032
1033         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1034         if (!rport) {
1035                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1036                            "Warning: fc_remote_port_add failed\n");
1037                 return;
1038         }
1039
1040         /* initialize static port data */
1041         rport->maxframe_size = ndlp->nlp_maxframe;
1042         rport->supported_classes = ndlp->nlp_class_sup;
1043         if ((rport->scsi_target_id != -1) &&
1044                 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1045                 ndlp->nlp_sid = rport->scsi_target_id;
1046         }
1047         rdata = rport->dd_data;
1048         rdata->pnode = ndlp;
1049
1050         return;
1051 }
1052
1053 int
1054 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1055 {
1056         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1057         struct lpfc_sli      *psli;
1058
1059         psli = &phba->sli;
1060         /* Sanity check to ensure we are not moving to / from the same list */
1061         if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1062                 if (list != NLP_NO_LIST)
1063                         return(0);
1064         }
1065
1066         switch(nlp->nlp_flag & NLP_LIST_MASK) {
1067         case NLP_NO_LIST: /* Not on any list */
1068                 break;
1069         case NLP_UNUSED_LIST:
1070                 phba->fc_unused_cnt--;
1071                 list_del(&nlp->nlp_listp);
1072                 break;
1073         case NLP_PLOGI_LIST:
1074                 phba->fc_plogi_cnt--;
1075                 list_del(&nlp->nlp_listp);
1076                 break;
1077         case NLP_ADISC_LIST:
1078                 phba->fc_adisc_cnt--;
1079                 list_del(&nlp->nlp_listp);
1080                 break;
1081         case NLP_REGLOGIN_LIST:
1082                 phba->fc_reglogin_cnt--;
1083                 list_del(&nlp->nlp_listp);
1084                 break;
1085         case NLP_PRLI_LIST:
1086                 phba->fc_prli_cnt--;
1087                 list_del(&nlp->nlp_listp);
1088                 break;
1089         case NLP_UNMAPPED_LIST:
1090                 phba->fc_unmap_cnt--;
1091                 list_del(&nlp->nlp_listp);
1092                 spin_lock_irq(phba->host->host_lock);
1093                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1094                 nlp->nlp_type &= ~NLP_FC_NODE;
1095                 spin_unlock_irq(phba->host->host_lock);
1096                 phba->nport_event_cnt++;
1097                 if (nlp->rport)
1098                         rport_del = unmapped;
1099                 break;
1100         case NLP_MAPPED_LIST:
1101                 phba->fc_map_cnt--;
1102                 list_del(&nlp->nlp_listp);
1103                 phba->nport_event_cnt++;
1104                 if (nlp->rport)
1105                         rport_del = mapped;
1106                 break;
1107         case NLP_NPR_LIST:
1108                 phba->fc_npr_cnt--;
1109                 list_del(&nlp->nlp_listp);
1110                 /* Stop delay tmo if taking node off NPR list */
1111                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1112                    (list != NLP_NPR_LIST)) {
1113                         spin_lock_irq(phba->host->host_lock);
1114                         nlp->nlp_flag &= ~NLP_DELAY_TMO;
1115                         spin_unlock_irq(phba->host->host_lock);
1116                         del_timer_sync(&nlp->nlp_delayfunc);
1117                         if (!list_empty(&nlp->els_retry_evt.evt_listp))
1118                                 list_del_init(&nlp->els_retry_evt.evt_listp);
1119                 }
1120                 break;
1121         }
1122
1123         spin_lock_irq(phba->host->host_lock);
1124         nlp->nlp_flag &= ~NLP_LIST_MASK;
1125         spin_unlock_irq(phba->host->host_lock);
1126
1127         /* Add NPort <did> to <num> list */
1128         lpfc_printf_log(phba,
1129                         KERN_INFO,
1130                         LOG_NODE,
1131                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1132                         phba->brd_no,
1133                         nlp->nlp_DID, list, nlp->nlp_flag);
1134
1135         switch(list) {
1136         case NLP_NO_LIST: /* No list, just remove it */
1137                 lpfc_nlp_remove(phba, nlp);
1138                 break;
1139         case NLP_UNUSED_LIST:
1140                 spin_lock_irq(phba->host->host_lock);
1141                 nlp->nlp_flag |= list;
1142                 spin_unlock_irq(phba->host->host_lock);
1143                 /* Put it at the end of the unused list */
1144                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1145                 phba->fc_unused_cnt++;
1146                 break;
1147         case NLP_PLOGI_LIST:
1148                 spin_lock_irq(phba->host->host_lock);
1149                 nlp->nlp_flag |= list;
1150                 spin_unlock_irq(phba->host->host_lock);
1151                 /* Put it at the end of the plogi list */
1152                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1153                 phba->fc_plogi_cnt++;
1154                 break;
1155         case NLP_ADISC_LIST:
1156                 spin_lock_irq(phba->host->host_lock);
1157                 nlp->nlp_flag |= list;
1158                 spin_unlock_irq(phba->host->host_lock);
1159                 /* Put it at the end of the adisc list */
1160                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1161                 phba->fc_adisc_cnt++;
1162                 break;
1163         case NLP_REGLOGIN_LIST:
1164                 spin_lock_irq(phba->host->host_lock);
1165                 nlp->nlp_flag |= list;
1166                 spin_unlock_irq(phba->host->host_lock);
1167                 /* Put it at the end of the reglogin list */
1168                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1169                 phba->fc_reglogin_cnt++;
1170                 break;
1171         case NLP_PRLI_LIST:
1172                 spin_lock_irq(phba->host->host_lock);
1173                 nlp->nlp_flag |= list;
1174                 spin_unlock_irq(phba->host->host_lock);
1175                 /* Put it at the end of the prli list */
1176                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1177                 phba->fc_prli_cnt++;
1178                 break;
1179         case NLP_UNMAPPED_LIST:
1180                 rport_add = unmapped;
1181                 /* ensure all vestiges of "mapped" significance are gone */
1182                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1183                 spin_lock_irq(phba->host->host_lock);
1184                 nlp->nlp_flag |= list;
1185                 spin_unlock_irq(phba->host->host_lock);
1186                 /* Put it at the end of the unmap list */
1187                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1188                 phba->fc_unmap_cnt++;
1189                 phba->nport_event_cnt++;
1190                 /* stop nodev tmo if running */
1191                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1192                         spin_lock_irq(phba->host->host_lock);
1193                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1194                         spin_unlock_irq(phba->host->host_lock);
1195                         del_timer_sync(&nlp->nlp_tmofunc);
1196                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1197                                 list_del_init(&nlp->nodev_timeout_evt.
1198                                                 evt_listp);
1199
1200                 }
1201                 nlp->nlp_type |= NLP_FC_NODE;
1202                 break;
1203         case NLP_MAPPED_LIST:
1204                 rport_add = mapped;
1205                 spin_lock_irq(phba->host->host_lock);
1206                 nlp->nlp_flag |= list;
1207                 spin_unlock_irq(phba->host->host_lock);
1208                 /* Put it at the end of the map list */
1209                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1210                 phba->fc_map_cnt++;
1211                 phba->nport_event_cnt++;
1212                 /* stop nodev tmo if running */
1213                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1214                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1215                         del_timer_sync(&nlp->nlp_tmofunc);
1216                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1217                                 list_del_init(&nlp->nodev_timeout_evt.
1218                                                 evt_listp);
1219
1220                 }
1221                 break;
1222         case NLP_NPR_LIST:
1223                 spin_lock_irq(phba->host->host_lock);
1224                 nlp->nlp_flag |= list;
1225                 spin_unlock_irq(phba->host->host_lock);
1226                 /* Put it at the end of the npr list */
1227                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1228                 phba->fc_npr_cnt++;
1229
1230                 /*
1231                  * Sanity check for Fabric entity.
1232                  * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1233                  */
1234                 if (nlp->nlp_type & NLP_FABRIC) {
1235                         mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1236                 }
1237                 else {
1238                         mod_timer(&nlp->nlp_tmofunc,
1239                             jiffies + HZ * phba->cfg_nodev_tmo);
1240                 }
1241                 spin_lock_irq(phba->host->host_lock);
1242                 nlp->nlp_flag |= NLP_NODEV_TMO;
1243                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1244                 spin_unlock_irq(phba->host->host_lock);
1245                 break;
1246         case NLP_JUST_DQ:
1247                 break;
1248         }
1249
1250         /*
1251          * We make all the calls into the transport after we have
1252          * moved the node between lists. This so that we don't
1253          * release the lock while in-between lists.
1254          */
1255
1256         /* Don't upcall midlayer if we're unloading */
1257         if (!(phba->fc_flag & FC_UNLOADING)) {
1258                 /*
1259                  * We revalidate the rport pointer as the "add" function
1260                  * may have removed the remote port.
1261                  */
1262                 if ((rport_del != none) && nlp->rport)
1263                         fc_remote_port_block(nlp->rport);
1264
1265                 if (rport_add != none) {
1266                         /*
1267                          * Tell the fc transport about the port, if we haven't
1268                          * already. If we have, and it's a scsi entity, be
1269                          * sure to unblock any attached scsi devices
1270                          */
1271                         if (!nlp->rport)
1272                                 lpfc_register_remote_port(phba, nlp);
1273                         else
1274                                 fc_remote_port_unblock(nlp->rport);
1275
1276                         /*
1277                          * if we added to Mapped list, but the remote port
1278                          * registration failed or assigned a target id outside
1279                          * our presentable range - move the node to the
1280                          * Unmapped List
1281                          */
1282                         if ((rport_add == mapped) &&
1283                             ((!nlp->rport) ||
1284                              (nlp->rport->scsi_target_id == -1) ||
1285                              (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1286                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1287                                 spin_lock_irq(phba->host->host_lock);
1288                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1289                                 spin_unlock_irq(phba->host->host_lock);
1290                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1291                         }
1292                 }
1293         }
1294         return (0);
1295 }
1296
1297 /*
1298  * Start / ReStart rescue timer for Discovery / RSCN handling
1299  */
1300 void
1301 lpfc_set_disctmo(struct lpfc_hba * phba)
1302 {
1303         uint32_t tmo;
1304
1305         tmo = ((phba->fc_ratov * 2) + 1);
1306
1307         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1308         spin_lock_irq(phba->host->host_lock);
1309         phba->fc_flag |= FC_DISC_TMO;
1310         spin_unlock_irq(phba->host->host_lock);
1311
1312         /* Start Discovery Timer state <hba_state> */
1313         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1314                         "%d:0247 Start Discovery Timer state x%x "
1315                         "Data: x%x x%lx x%x x%x\n",
1316                         phba->brd_no,
1317                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1318                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1319
1320         return;
1321 }
1322
1323 /*
1324  * Cancel rescue timer for Discovery / RSCN handling
1325  */
1326 int
1327 lpfc_can_disctmo(struct lpfc_hba * phba)
1328 {
1329         /* Turn off discovery timer if its running */
1330         if (phba->fc_flag & FC_DISC_TMO) {
1331                 spin_lock_irq(phba->host->host_lock);
1332                 phba->fc_flag &= ~FC_DISC_TMO;
1333                 spin_unlock_irq(phba->host->host_lock);
1334                 del_timer_sync(&phba->fc_disctmo);
1335                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1336         }
1337
1338         /* Cancel Discovery Timer state <hba_state> */
1339         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1340                         "%d:0248 Cancel Discovery Timer state x%x "
1341                         "Data: x%x x%x x%x\n",
1342                         phba->brd_no, phba->hba_state, phba->fc_flag,
1343                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1344
1345         return (0);
1346 }
1347
1348 /*
1349  * Check specified ring for outstanding IOCB on the SLI queue
1350  * Return true if iocb matches the specified nport
1351  */
1352 int
1353 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1354                     struct lpfc_sli_ring * pring,
1355                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1356 {
1357         struct lpfc_sli *psli;
1358         IOCB_t *icmd;
1359
1360         psli = &phba->sli;
1361         icmd = &iocb->iocb;
1362         if (pring->ringno == LPFC_ELS_RING) {
1363                 switch (icmd->ulpCommand) {
1364                 case CMD_GEN_REQUEST64_CR:
1365                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1366                                 return (1);
1367                 case CMD_ELS_REQUEST64_CR:
1368                 case CMD_XMIT_ELS_RSP64_CX:
1369                         if (iocb->context1 == (uint8_t *) ndlp)
1370                                 return (1);
1371                 }
1372         } else if (pring->ringno == psli->ip_ring) {
1373
1374         } else if (pring->ringno == psli->fcp_ring) {
1375                 /* Skip match check if waiting to relogin to FCP target */
1376                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1377                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1378                         return (0);
1379                 }
1380                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1381                         return (1);
1382                 }
1383         } else if (pring->ringno == psli->next_ring) {
1384
1385         }
1386         return (0);
1387 }
1388
1389 /*
1390  * Free resources / clean up outstanding I/Os
1391  * associated with nlp_rpi in the LPFC_NODELIST entry.
1392  */
1393 static int
1394 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1395 {
1396         struct lpfc_sli *psli;
1397         struct lpfc_sli_ring *pring;
1398         struct lpfc_iocbq *iocb, *next_iocb;
1399         IOCB_t *icmd;
1400         uint32_t rpi, i;
1401
1402         /*
1403          * Everything that matches on txcmplq will be returned
1404          * by firmware with a no rpi error.
1405          */
1406         psli = &phba->sli;
1407         rpi = ndlp->nlp_rpi;
1408         if (rpi) {
1409                 /* Now process each ring */
1410                 for (i = 0; i < psli->num_rings; i++) {
1411                         pring = &psli->ring[i];
1412
1413                         spin_lock_irq(phba->host->host_lock);
1414                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1415                                                 list) {
1416                                 /*
1417                                  * Check to see if iocb matches the nport we are
1418                                  * looking for
1419                                  */
1420                                 if ((lpfc_check_sli_ndlp
1421                                      (phba, pring, iocb, ndlp))) {
1422                                         /* It matches, so deque and call compl
1423                                            with an error */
1424                                         list_del(&iocb->list);
1425                                         pring->txq_cnt--;
1426                                         if (iocb->iocb_cmpl) {
1427                                                 icmd = &iocb->iocb;
1428                                                 icmd->ulpStatus =
1429                                                     IOSTAT_LOCAL_REJECT;
1430                                                 icmd->un.ulpWord[4] =
1431                                                     IOERR_SLI_ABORTED;
1432                                                 spin_unlock_irq(phba->host->
1433                                                                 host_lock);
1434                                                 (iocb->iocb_cmpl) (phba,
1435                                                                    iocb, iocb);
1436                                                 spin_lock_irq(phba->host->
1437                                                               host_lock);
1438                                         } else {
1439                                                 list_add_tail(&iocb->list,
1440                                                         &phba->lpfc_iocb_list);
1441                                         }
1442                                 }
1443                         }
1444                         spin_unlock_irq(phba->host->host_lock);
1445
1446                 }
1447         }
1448         return (0);
1449 }
1450
1451 /*
1452  * Free rpi associated with LPFC_NODELIST entry.
1453  * This routine is called from lpfc_freenode(), when we are removing
1454  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1455  * LOGO that completes successfully, and we are waiting to PLOGI back
1456  * to the remote NPort. In addition, it is called after we receive
1457  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1458  * we are waiting to PLOGI back to the remote NPort.
1459  */
1460 int
1461 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1462 {
1463         LPFC_MBOXQ_t *mbox;
1464         int rc;
1465
1466         if (ndlp->nlp_rpi) {
1467                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1468                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1469                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1470                         rc = lpfc_sli_issue_mbox
1471                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1472                         if (rc == MBX_NOT_FINISHED)
1473                                 mempool_free( mbox, phba->mbox_mem_pool);
1474                 }
1475                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1476                 lpfc_no_rpi(phba, ndlp);
1477                 ndlp->nlp_rpi = 0;
1478                 return 1;
1479         }
1480         return 0;
1481 }
1482
1483 /*
1484  * Free resources associated with LPFC_NODELIST entry
1485  * so it can be freed.
1486  */
1487 static int
1488 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1489 {
1490         LPFC_MBOXQ_t       *mb;
1491         LPFC_MBOXQ_t       *nextmb;
1492         struct lpfc_dmabuf *mp;
1493         struct fc_rport *rport;
1494
1495         /* Cleanup node for NPort <nlp_DID> */
1496         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1497                         "%d:0900 Cleanup node for NPort x%x "
1498                         "Data: x%x x%x x%x\n",
1499                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1500                         ndlp->nlp_state, ndlp->nlp_rpi);
1501
1502         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1503
1504         /*
1505          * if unloading the driver - just leave the remote port in place.
1506          * The driver unload will force the attached devices to detach
1507          * and flush cache's w/o generating flush errors.
1508          */
1509         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1510                 rport = ndlp->rport;
1511                 ndlp->rport = NULL;
1512                 fc_remote_port_unblock(rport);
1513                 fc_remote_port_delete(rport);
1514                 ndlp->nlp_sid = NLP_NO_SID;
1515         }
1516
1517         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1518         if ((mb = phba->sli.mbox_active)) {
1519                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1520                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1521                         mb->context2 = NULL;
1522                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1523                 }
1524         }
1525         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1526                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1527                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1528                         mp = (struct lpfc_dmabuf *) (mb->context1);
1529                         if (mp) {
1530                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1531                                 kfree(mp);
1532                         }
1533                         list_del(&mb->list);
1534                         mempool_free(mb, phba->mbox_mem_pool);
1535                 }
1536         }
1537
1538         lpfc_els_abort(phba,ndlp,0);
1539         spin_lock_irq(phba->host->host_lock);
1540         ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1541         spin_unlock_irq(phba->host->host_lock);
1542         del_timer_sync(&ndlp->nlp_tmofunc);
1543
1544         del_timer_sync(&ndlp->nlp_delayfunc);
1545
1546         if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1547                 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1548         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1549                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1550
1551         lpfc_unreg_rpi(phba, ndlp);
1552
1553         return (0);
1554 }
1555
1556 /*
1557  * Check to see if we can free the nlp back to the freelist.
1558  * If we are in the middle of using the nlp in the discovery state
1559  * machine, defer the free till we reach the end of the state machine.
1560  */
1561 int
1562 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1563 {
1564         if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1565                 spin_lock_irq(phba->host->host_lock);
1566                 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1567                 spin_unlock_irq(phba->host->host_lock);
1568                 del_timer_sync(&ndlp->nlp_tmofunc);
1569                 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1570                         list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1571
1572         }
1573
1574
1575         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1576                 spin_lock_irq(phba->host->host_lock);
1577                 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1578                 spin_unlock_irq(phba->host->host_lock);
1579                 del_timer_sync(&ndlp->nlp_delayfunc);
1580                 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1581                         list_del_init(&ndlp->els_retry_evt.evt_listp);
1582         }
1583
1584         if (ndlp->nlp_disc_refcnt) {
1585                 spin_lock_irq(phba->host->host_lock);
1586                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1587                 spin_unlock_irq(phba->host->host_lock);
1588         }
1589         else {
1590                 lpfc_freenode(phba, ndlp);
1591                 mempool_free( ndlp, phba->nlp_mem_pool);
1592         }
1593         return(0);
1594 }
1595
1596 static int
1597 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1598 {
1599         D_ID mydid;
1600         D_ID ndlpdid;
1601         D_ID matchdid;
1602
1603         if (did == Bcast_DID)
1604                 return (0);
1605
1606         if (ndlp->nlp_DID == 0) {
1607                 return (0);
1608         }
1609
1610         /* First check for Direct match */
1611         if (ndlp->nlp_DID == did)
1612                 return (1);
1613
1614         /* Next check for area/domain identically equals 0 match */
1615         mydid.un.word = phba->fc_myDID;
1616         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1617                 return (0);
1618         }
1619
1620         matchdid.un.word = did;
1621         ndlpdid.un.word = ndlp->nlp_DID;
1622         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1623                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1624                     (mydid.un.b.area == matchdid.un.b.area)) {
1625                         if ((ndlpdid.un.b.domain == 0) &&
1626                             (ndlpdid.un.b.area == 0)) {
1627                                 if (ndlpdid.un.b.id)
1628                                         return (1);
1629                         }
1630                         return (0);
1631                 }
1632
1633                 matchdid.un.word = ndlp->nlp_DID;
1634                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1635                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1636                         if ((matchdid.un.b.domain == 0) &&
1637                             (matchdid.un.b.area == 0)) {
1638                                 if (matchdid.un.b.id)
1639                                         return (1);
1640                         }
1641                 }
1642         }
1643         return (0);
1644 }
1645
1646 /* Search for a nodelist entry on a specific list */
1647 struct lpfc_nodelist *
1648 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1649 {
1650         struct lpfc_nodelist *ndlp, *next_ndlp;
1651         uint32_t data1;
1652
1653         if (order & NLP_SEARCH_UNMAPPED) {
1654                 list_for_each_entry_safe(ndlp, next_ndlp,
1655                                          &phba->fc_nlpunmap_list, nlp_listp) {
1656                         if (lpfc_matchdid(phba, ndlp, did)) {
1657                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1658                                          ((uint32_t) ndlp->nlp_xri << 16) |
1659                                          ((uint32_t) ndlp->nlp_type << 8) |
1660                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1661                                 /* FIND node DID unmapped */
1662                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1663                                                 "%d:0929 FIND node DID unmapped"
1664                                                 " Data: x%p x%x x%x x%x\n",
1665                                                 phba->brd_no,
1666                                                 ndlp, ndlp->nlp_DID,
1667                                                 ndlp->nlp_flag, data1);
1668                                 return (ndlp);
1669                         }
1670                 }
1671         }
1672
1673         if (order & NLP_SEARCH_MAPPED) {
1674                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1675                                         nlp_listp) {
1676                         if (lpfc_matchdid(phba, ndlp, did)) {
1677
1678                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1679                                          ((uint32_t) ndlp->nlp_xri << 16) |
1680                                          ((uint32_t) ndlp->nlp_type << 8) |
1681                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1682                                 /* FIND node DID mapped */
1683                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1684                                                 "%d:0930 FIND node DID mapped "
1685                                                 "Data: x%p x%x x%x x%x\n",
1686                                                 phba->brd_no,
1687                                                 ndlp, ndlp->nlp_DID,
1688                                                 ndlp->nlp_flag, data1);
1689                                 return (ndlp);
1690                         }
1691                 }
1692         }
1693
1694         if (order & NLP_SEARCH_PLOGI) {
1695                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1696                                         nlp_listp) {
1697                         if (lpfc_matchdid(phba, ndlp, did)) {
1698
1699                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1700                                          ((uint32_t) ndlp->nlp_xri << 16) |
1701                                          ((uint32_t) ndlp->nlp_type << 8) |
1702                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1703                                 /* LOG change to PLOGI */
1704                                 /* FIND node DID plogi */
1705                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1706                                                 "%d:0908 FIND node DID plogi "
1707                                                 "Data: x%p x%x x%x x%x\n",
1708                                                 phba->brd_no,
1709                                                 ndlp, ndlp->nlp_DID,
1710                                                 ndlp->nlp_flag, data1);
1711                                 return (ndlp);
1712                         }
1713                 }
1714         }
1715
1716         if (order & NLP_SEARCH_ADISC) {
1717                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1718                                         nlp_listp) {
1719                         if (lpfc_matchdid(phba, ndlp, did)) {
1720
1721                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1722                                          ((uint32_t) ndlp->nlp_xri << 16) |
1723                                          ((uint32_t) ndlp->nlp_type << 8) |
1724                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1725                                 /* LOG change to ADISC */
1726                                 /* FIND node DID adisc */
1727                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1728                                                 "%d:0931 FIND node DID adisc "
1729                                                 "Data: x%p x%x x%x x%x\n",
1730                                                 phba->brd_no,
1731                                                 ndlp, ndlp->nlp_DID,
1732                                                 ndlp->nlp_flag, data1);
1733                                 return (ndlp);
1734                         }
1735                 }
1736         }
1737
1738         if (order & NLP_SEARCH_REGLOGIN) {
1739                 list_for_each_entry_safe(ndlp, next_ndlp,
1740                                          &phba->fc_reglogin_list, nlp_listp) {
1741                         if (lpfc_matchdid(phba, ndlp, did)) {
1742
1743                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1744                                          ((uint32_t) ndlp->nlp_xri << 16) |
1745                                          ((uint32_t) ndlp->nlp_type << 8) |
1746                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1747                                 /* LOG change to REGLOGIN */
1748                                 /* FIND node DID reglogin */
1749                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1750                                                 "%d:0931 FIND node DID reglogin"
1751                                                 " Data: x%p x%x x%x x%x\n",
1752                                                 phba->brd_no,
1753                                                 ndlp, ndlp->nlp_DID,
1754                                                 ndlp->nlp_flag, data1);
1755                                 return (ndlp);
1756                         }
1757                 }
1758         }
1759
1760         if (order & NLP_SEARCH_PRLI) {
1761                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1762                                         nlp_listp) {
1763                         if (lpfc_matchdid(phba, ndlp, did)) {
1764
1765                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1766                                          ((uint32_t) ndlp->nlp_xri << 16) |
1767                                          ((uint32_t) ndlp->nlp_type << 8) |
1768                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1769                                 /* LOG change to PRLI */
1770                                 /* FIND node DID prli */
1771                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1772                                                 "%d:0931 FIND node DID prli "
1773                                                 "Data: x%p x%x x%x x%x\n",
1774                                                 phba->brd_no,
1775                                                 ndlp, ndlp->nlp_DID,
1776                                                 ndlp->nlp_flag, data1);
1777                                 return (ndlp);
1778                         }
1779                 }
1780         }
1781
1782         if (order & NLP_SEARCH_NPR) {
1783                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1784                                         nlp_listp) {
1785                         if (lpfc_matchdid(phba, ndlp, did)) {
1786
1787                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1788                                          ((uint32_t) ndlp->nlp_xri << 16) |
1789                                          ((uint32_t) ndlp->nlp_type << 8) |
1790                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1791                                 /* LOG change to NPR */
1792                                 /* FIND node DID npr */
1793                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1794                                                 "%d:0931 FIND node DID npr "
1795                                                 "Data: x%p x%x x%x x%x\n",
1796                                                 phba->brd_no,
1797                                                 ndlp, ndlp->nlp_DID,
1798                                                 ndlp->nlp_flag, data1);
1799                                 return (ndlp);
1800                         }
1801                 }
1802         }
1803
1804         if (order & NLP_SEARCH_UNUSED) {
1805                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1806                                         nlp_listp) {
1807                         if (lpfc_matchdid(phba, ndlp, did)) {
1808
1809                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1810                                          ((uint32_t) ndlp->nlp_xri << 16) |
1811                                          ((uint32_t) ndlp->nlp_type << 8) |
1812                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1813                                 /* LOG change to UNUSED */
1814                                 /* FIND node DID unused */
1815                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1816                                                 "%d:0931 FIND node DID unused "
1817                                                 "Data: x%p x%x x%x x%x\n",
1818                                                 phba->brd_no,
1819                                                 ndlp, ndlp->nlp_DID,
1820                                                 ndlp->nlp_flag, data1);
1821                                 return (ndlp);
1822                         }
1823                 }
1824         }
1825
1826         /* FIND node did <did> NOT FOUND */
1827         lpfc_printf_log(phba,
1828                         KERN_INFO,
1829                         LOG_NODE,
1830                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1831                         phba->brd_no, did, order);
1832
1833         /* no match found */
1834         return NULL;
1835 }
1836
1837 struct lpfc_nodelist *
1838 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1839 {
1840         struct lpfc_nodelist *ndlp;
1841         uint32_t flg;
1842
1843         if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1844                 if ((phba->hba_state == LPFC_HBA_READY) &&
1845                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1846                         return NULL;
1847                 ndlp = (struct lpfc_nodelist *)
1848                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1849                 if (!ndlp)
1850                         return NULL;
1851                 lpfc_nlp_init(phba, ndlp, did);
1852                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1853                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1854                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1855                 return ndlp;
1856         }
1857         if ((phba->hba_state == LPFC_HBA_READY) &&
1858             (phba->fc_flag & FC_RSCN_MODE)) {
1859                 if (lpfc_rscn_payload_check(phba, did)) {
1860                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1861                 }
1862                 else {
1863                         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1864                         ndlp = NULL;
1865                 }
1866         }
1867         else {
1868                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1869                 if ((flg == NLP_ADISC_LIST) ||
1870                 (flg == NLP_PLOGI_LIST)) {
1871                         return NULL;
1872                 }
1873                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1874                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1875                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1876         }
1877         return ndlp;
1878 }
1879
1880 /* Build a list of nodes to discover based on the loopmap */
1881 void
1882 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1883 {
1884         int j;
1885         uint32_t alpa, index;
1886
1887         if (phba->hba_state <= LPFC_LINK_DOWN) {
1888                 return;
1889         }
1890         if (phba->fc_topology != TOPOLOGY_LOOP) {
1891                 return;
1892         }
1893
1894         /* Check for loop map present or not */
1895         if (phba->alpa_map[0]) {
1896                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1897                         alpa = phba->alpa_map[j];
1898
1899                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1900                                 continue;
1901                         }
1902                         lpfc_setup_disc_node(phba, alpa);
1903                 }
1904         } else {
1905                 /* No alpamap, so try all alpa's */
1906                 for (j = 0; j < FC_MAXLOOP; j++) {
1907                         /* If cfg_scan_down is set, start from highest
1908                          * ALPA (0xef) to lowest (0x1).
1909                          */
1910                         if (phba->cfg_scan_down)
1911                                 index = j;
1912                         else
1913                                 index = FC_MAXLOOP - j - 1;
1914                         alpa = lpfcAlpaArray[index];
1915                         if ((phba->fc_myDID & 0xff) == alpa) {
1916                                 continue;
1917                         }
1918
1919                         lpfc_setup_disc_node(phba, alpa);
1920                 }
1921         }
1922         return;
1923 }
1924
1925 /* Start Link up / RSCN discovery on NPR list */
1926 void
1927 lpfc_disc_start(struct lpfc_hba * phba)
1928 {
1929         struct lpfc_sli *psli;
1930         LPFC_MBOXQ_t *mbox;
1931         struct lpfc_nodelist *ndlp, *next_ndlp;
1932         uint32_t did_changed, num_sent;
1933         uint32_t clear_la_pending;
1934         int rc;
1935
1936         psli = &phba->sli;
1937
1938         if (phba->hba_state <= LPFC_LINK_DOWN) {
1939                 return;
1940         }
1941         if (phba->hba_state == LPFC_CLEAR_LA)
1942                 clear_la_pending = 1;
1943         else
1944                 clear_la_pending = 0;
1945
1946         if (phba->hba_state < LPFC_HBA_READY) {
1947                 phba->hba_state = LPFC_DISC_AUTH;
1948         }
1949         lpfc_set_disctmo(phba);
1950
1951         if (phba->fc_prevDID == phba->fc_myDID) {
1952                 did_changed = 0;
1953         } else {
1954                 did_changed = 1;
1955         }
1956         phba->fc_prevDID = phba->fc_myDID;
1957         phba->num_disc_nodes = 0;
1958
1959         /* Start Discovery state <hba_state> */
1960         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1961                         "%d:0202 Start Discovery hba state x%x "
1962                         "Data: x%x x%x x%x\n",
1963                         phba->brd_no, phba->hba_state, phba->fc_flag,
1964                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1965
1966         /* If our did changed, we MUST do PLOGI */
1967         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1968                                 nlp_listp) {
1969                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1970                         if (did_changed) {
1971                                 spin_lock_irq(phba->host->host_lock);
1972                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1973                                 spin_unlock_irq(phba->host->host_lock);
1974                         }
1975                 }
1976         }
1977
1978         /* First do ADISCs - if any */
1979         num_sent = lpfc_els_disc_adisc(phba);
1980
1981         if (num_sent)
1982                 return;
1983
1984         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1985                 /* If we get here, there is nothing to ADISC */
1986                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1987                         phba->hba_state = LPFC_CLEAR_LA;
1988                         lpfc_clear_la(phba, mbox);
1989                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1990                         rc = lpfc_sli_issue_mbox(phba, mbox,
1991                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1992                         if (rc == MBX_NOT_FINISHED) {
1993                                 mempool_free( mbox, phba->mbox_mem_pool);
1994                                 lpfc_disc_flush_list(phba);
1995                                 psli->ring[(psli->ip_ring)].flag &=
1996                                         ~LPFC_STOP_IOCB_EVENT;
1997                                 psli->ring[(psli->fcp_ring)].flag &=
1998                                         ~LPFC_STOP_IOCB_EVENT;
1999                                 psli->ring[(psli->next_ring)].flag &=
2000                                         ~LPFC_STOP_IOCB_EVENT;
2001                                 phba->hba_state = LPFC_HBA_READY;
2002                         }
2003                 }
2004         } else {
2005                 /* Next do PLOGIs - if any */
2006                 num_sent = lpfc_els_disc_plogi(phba);
2007
2008                 if (num_sent)
2009                         return;
2010
2011                 if (phba->fc_flag & FC_RSCN_MODE) {
2012                         /* Check to see if more RSCNs came in while we
2013                          * were processing this one.
2014                          */
2015                         if ((phba->fc_rscn_id_cnt == 0) &&
2016                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2017                                 spin_lock_irq(phba->host->host_lock);
2018                                 phba->fc_flag &= ~FC_RSCN_MODE;
2019                                 spin_unlock_irq(phba->host->host_lock);
2020                         }
2021                         else
2022                                 lpfc_els_handle_rscn(phba);
2023                 }
2024         }
2025         return;
2026 }
2027
2028 /*
2029  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2030  *  ring the match the sppecified nodelist.
2031  */
2032 static void
2033 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2034 {
2035         struct lpfc_sli *psli;
2036         IOCB_t     *icmd;
2037         struct lpfc_iocbq    *iocb, *next_iocb;
2038         struct lpfc_sli_ring *pring;
2039         struct lpfc_dmabuf   *mp;
2040
2041         psli = &phba->sli;
2042         pring = &psli->ring[LPFC_ELS_RING];
2043
2044         /* Error matching iocb on txq or txcmplq
2045          * First check the txq.
2046          */
2047         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2048                 if (iocb->context1 != ndlp) {
2049                         continue;
2050                 }
2051                 icmd = &iocb->iocb;
2052                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2053                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2054
2055                         list_del(&iocb->list);
2056                         pring->txq_cnt--;
2057                         lpfc_els_free_iocb(phba, iocb);
2058                 }
2059         }
2060
2061         /* Next check the txcmplq */
2062         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2063                 if (iocb->context1 != ndlp) {
2064                         continue;
2065                 }
2066                 icmd = &iocb->iocb;
2067                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2068                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2069
2070                         iocb->iocb_cmpl = NULL;
2071                         /* context2 = cmd, context2->next = rsp, context3 =
2072                            bpl */
2073                         if (iocb->context2) {
2074                                 /* Free the response IOCB before handling the
2075                                    command. */
2076
2077                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2078                                 mp = list_get_first(&mp->list,
2079                                                     struct lpfc_dmabuf,
2080                                                     list);
2081                                 if (mp) {
2082                                         /* Delay before releasing rsp buffer to
2083                                          * give UNREG mbox a chance to take
2084                                          * effect.
2085                                          */
2086                                         list_add(&mp->list,
2087                                                 &phba->freebufList);
2088                                 }
2089                                 lpfc_mbuf_free(phba,
2090                                                ((struct lpfc_dmabuf *)
2091                                                 iocb->context2)->virt,
2092                                                ((struct lpfc_dmabuf *)
2093                                                 iocb->context2)->phys);
2094                                 kfree(iocb->context2);
2095                         }
2096
2097                         if (iocb->context3) {
2098                                 lpfc_mbuf_free(phba,
2099                                                ((struct lpfc_dmabuf *)
2100                                                 iocb->context3)->virt,
2101                                                ((struct lpfc_dmabuf *)
2102                                                 iocb->context3)->phys);
2103                                 kfree(iocb->context3);
2104                         }
2105                 }
2106         }
2107
2108         return;
2109 }
2110
2111 void
2112 lpfc_disc_flush_list(struct lpfc_hba * phba)
2113 {
2114         struct lpfc_nodelist *ndlp, *next_ndlp;
2115
2116         if (phba->fc_plogi_cnt) {
2117                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2118                                         nlp_listp) {
2119                         lpfc_free_tx(phba, ndlp);
2120                         lpfc_nlp_remove(phba, ndlp);
2121                 }
2122         }
2123         if (phba->fc_adisc_cnt) {
2124                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2125                                         nlp_listp) {
2126                         lpfc_free_tx(phba, ndlp);
2127                         lpfc_nlp_remove(phba, ndlp);
2128                 }
2129         }
2130         return;
2131 }
2132
2133 /*****************************************************************************/
2134 /*
2135  * NAME:     lpfc_disc_timeout
2136  *
2137  * FUNCTION: Fibre Channel driver discovery timeout routine.
2138  *
2139  * EXECUTION ENVIRONMENT: interrupt only
2140  *
2141  * CALLED FROM:
2142  *      Timer function
2143  *
2144  * RETURNS:
2145  *      none
2146  */
2147 /*****************************************************************************/
2148 void
2149 lpfc_disc_timeout(unsigned long ptr)
2150 {
2151         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2152         unsigned long flags = 0;
2153
2154         if (unlikely(!phba))
2155                 return;
2156
2157         spin_lock_irqsave(phba->host->host_lock, flags);
2158         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2159                 phba->work_hba_events |= WORKER_DISC_TMO;
2160                 if (phba->work_wait)
2161                         wake_up(phba->work_wait);
2162         }
2163         spin_unlock_irqrestore(phba->host->host_lock, flags);
2164         return;
2165 }
2166
2167 static void
2168 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2169 {
2170         struct lpfc_sli *psli;
2171         struct lpfc_nodelist *ndlp;
2172         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2173         int rc, clrlaerr = 0;
2174
2175         if (unlikely(!phba))
2176                 return;
2177
2178         if (!(phba->fc_flag & FC_DISC_TMO))
2179                 return;
2180
2181         psli = &phba->sli;
2182
2183         spin_lock_irq(phba->host->host_lock);
2184         phba->fc_flag &= ~FC_DISC_TMO;
2185         spin_unlock_irq(phba->host->host_lock);
2186
2187         switch (phba->hba_state) {
2188
2189         case LPFC_LOCAL_CFG_LINK:
2190         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2191                 /* FAN timeout */
2192                 lpfc_printf_log(phba,
2193                                  KERN_WARNING,
2194                                  LOG_DISCOVERY,
2195                                  "%d:0221 FAN timeout\n",
2196                                  phba->brd_no);
2197
2198                 /* Forget about FAN, Start discovery by sending a FLOGI
2199                  * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2200                  * cmpl
2201                  */
2202                 phba->hba_state = LPFC_FLOGI;
2203                 lpfc_set_disctmo(phba);
2204                 lpfc_initial_flogi(phba);
2205                 break;
2206
2207         case LPFC_FLOGI:
2208         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2209                 /* Initial FLOGI timeout */
2210                 lpfc_printf_log(phba,
2211                                  KERN_ERR,
2212                                  LOG_DISCOVERY,
2213                                  "%d:0222 Initial FLOGI timeout\n",
2214                                  phba->brd_no);
2215
2216                 /* Assume no Fabric and go on with discovery.
2217                  * Check for outstanding ELS FLOGI to abort.
2218                  */
2219
2220                 /* FLOGI failed, so just use loop map to make discovery list */
2221                 lpfc_disc_list_loopmap(phba);
2222
2223                 /* Start discovery */
2224                 lpfc_disc_start(phba);
2225                 break;
2226
2227         case LPFC_FABRIC_CFG_LINK:
2228         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2229            NameServer login */
2230                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2231                                 "%d:0223 Timeout while waiting for NameServer "
2232                                 "login\n", phba->brd_no);
2233
2234                 /* Next look for NameServer ndlp */
2235                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2236                 if (ndlp)
2237                         lpfc_nlp_remove(phba, ndlp);
2238                 /* Start discovery */
2239                 lpfc_disc_start(phba);
2240                 break;
2241
2242         case LPFC_NS_QRY:
2243         /* Check for wait for NameServer Rsp timeout */
2244                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2245                                 "%d:0224 NameServer Query timeout "
2246                                 "Data: x%x x%x\n",
2247                                 phba->brd_no,
2248                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2249
2250                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2251                                                                 NameServer_DID);
2252                 if (ndlp) {
2253                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2254                                 /* Try it one more time */
2255                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2256                                 if (rc == 0)
2257                                         break;
2258                         }
2259                         phba->fc_ns_retry = 0;
2260                 }
2261
2262                 /* Nothing to authenticate, so CLEAR_LA right now */
2263                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2264                 if (!clearlambox) {
2265                         clrlaerr = 1;
2266                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2267                                         "%d:0226 Device Discovery "
2268                                         "completion error\n",
2269                                         phba->brd_no);
2270                         phba->hba_state = LPFC_HBA_ERROR;
2271                         break;
2272                 }
2273
2274                 phba->hba_state = LPFC_CLEAR_LA;
2275                 lpfc_clear_la(phba, clearlambox);
2276                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2277                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2278                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2279                 if (rc == MBX_NOT_FINISHED) {
2280                         mempool_free(clearlambox, phba->mbox_mem_pool);
2281                         clrlaerr = 1;
2282                         break;
2283                 }
2284
2285                 /* Setup and issue mailbox INITIALIZE LINK command */
2286                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2287                 if (!initlinkmbox) {
2288                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2289                                         "%d:0226 Device Discovery "
2290                                         "completion error\n",
2291                                         phba->brd_no);
2292                         phba->hba_state = LPFC_HBA_ERROR;
2293                         break;
2294                 }
2295
2296                 lpfc_linkdown(phba);
2297                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2298                                phba->cfg_link_speed);
2299                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2300                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2301                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2302                 if (rc == MBX_NOT_FINISHED)
2303                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2304
2305                 break;
2306
2307         case LPFC_DISC_AUTH:
2308         /* Node Authentication timeout */
2309                 lpfc_printf_log(phba,
2310                                  KERN_ERR,
2311                                  LOG_DISCOVERY,
2312                                  "%d:0227 Node Authentication timeout\n",
2313                                  phba->brd_no);
2314                 lpfc_disc_flush_list(phba);
2315                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2316                 if (!clearlambox) {
2317                         clrlaerr = 1;
2318                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2319                                         "%d:0226 Device Discovery "
2320                                         "completion error\n",
2321                                         phba->brd_no);
2322                         phba->hba_state = LPFC_HBA_ERROR;
2323                         break;
2324                 }
2325                 phba->hba_state = LPFC_CLEAR_LA;
2326                 lpfc_clear_la(phba, clearlambox);
2327                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2328                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2329                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2330                 if (rc == MBX_NOT_FINISHED) {
2331                         mempool_free(clearlambox, phba->mbox_mem_pool);
2332                         clrlaerr = 1;
2333                 }
2334                 break;
2335
2336         case LPFC_CLEAR_LA:
2337         /* CLEAR LA timeout */
2338                 lpfc_printf_log(phba,
2339                                  KERN_ERR,
2340                                  LOG_DISCOVERY,
2341                                  "%d:0228 CLEAR LA timeout\n",
2342                                  phba->brd_no);
2343                 clrlaerr = 1;
2344                 break;
2345
2346         case LPFC_HBA_READY:
2347                 if (phba->fc_flag & FC_RSCN_MODE) {
2348                         lpfc_printf_log(phba,
2349                                         KERN_ERR,
2350                                         LOG_DISCOVERY,
2351                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2352                                         phba->brd_no,
2353                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2354
2355                         /* Cleanup any outstanding ELS commands */
2356                         lpfc_els_flush_cmd(phba);
2357
2358                         lpfc_els_flush_rscn(phba);
2359                         lpfc_disc_flush_list(phba);
2360                 }
2361                 break;
2362         }
2363
2364         if (clrlaerr) {
2365                 lpfc_disc_flush_list(phba);
2366                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2367                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2368                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2369                 phba->hba_state = LPFC_HBA_READY;
2370         }
2371
2372         return;
2373 }
2374
2375 static void
2376 lpfc_nodev_timeout(unsigned long ptr)
2377 {
2378         struct lpfc_hba *phba;
2379         struct lpfc_nodelist *ndlp;
2380         unsigned long iflag;
2381         struct lpfc_work_evt  *evtp;
2382
2383         ndlp = (struct lpfc_nodelist *)ptr;
2384         phba = ndlp->nlp_phba;
2385         evtp = &ndlp->nodev_timeout_evt;
2386         spin_lock_irqsave(phba->host->host_lock, iflag);
2387
2388         if (!list_empty(&evtp->evt_listp)) {
2389                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2390                 return;
2391         }
2392         evtp->evt_arg1  = ndlp;
2393         evtp->evt       = LPFC_EVT_NODEV_TMO;
2394         list_add_tail(&evtp->evt_listp, &phba->work_list);
2395         if (phba->work_wait)
2396                 wake_up(phba->work_wait);
2397
2398         spin_unlock_irqrestore(phba->host->host_lock, iflag);
2399         return;
2400 }
2401
2402
2403 /*
2404  * This routine handles processing a NameServer REG_LOGIN mailbox
2405  * command upon completion. It is setup in the LPFC_MBOXQ
2406  * as the completion routine when the command is
2407  * handed off to the SLI layer.
2408  */
2409 void
2410 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2411 {
2412         struct lpfc_sli *psli;
2413         MAILBOX_t *mb;
2414         struct lpfc_dmabuf *mp;
2415         struct lpfc_nodelist *ndlp;
2416
2417         psli = &phba->sli;
2418         mb = &pmb->mb;
2419
2420         ndlp = (struct lpfc_nodelist *) pmb->context2;
2421         mp = (struct lpfc_dmabuf *) (pmb->context1);
2422
2423         pmb->context1 = NULL;
2424
2425         if (ndlp->nlp_rpi != 0)
2426                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
2427         ndlp->nlp_rpi = mb->un.varWords[0];
2428         lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
2429         ndlp->nlp_type |= NLP_FABRIC;
2430         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2431         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2432
2433         /* Start issuing Fabric-Device Management Interface (FDMI)
2434          * command to 0xfffffa (FDMI well known port)
2435          */
2436         if (phba->cfg_fdmi_on == 1) {
2437                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2438         } else {
2439                 /*
2440                  * Delay issuing FDMI command if fdmi-on=2
2441                  * (supporting RPA/hostnmae)
2442                  */
2443                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2444         }
2445
2446         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2447         kfree(mp);
2448         mempool_free( pmb, phba->mbox_mem_pool);
2449
2450         return;
2451 }
2452
2453 /*
2454  * This routine looks up the ndlp hash
2455  * table for the given RPI. If rpi found
2456  * it return the node list pointer
2457  * else return 0.
2458  */
2459 struct lpfc_nodelist *
2460 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2461 {
2462         struct lpfc_nodelist *ret;
2463
2464         ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2465         while ((ret != 0) && (ret->nlp_rpi != rpi)) {
2466                 ret = ret->nlp_rpi_hash_next;
2467         }
2468         return ret;
2469 }
2470
2471 /*
2472  * This routine looks up the ndlp hash table for the
2473  * given RPI. If rpi found it return the node list
2474  * pointer else return 0 after deleting the entry
2475  * from hash table.
2476  */
2477 struct lpfc_nodelist *
2478 lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi)
2479 {
2480         struct lpfc_nodelist *ret, *temp;;
2481
2482         ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2483         if (ret == 0)
2484                 return NULL;
2485
2486         if (ret->nlp_rpi == rpi) {
2487                 phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] =
2488                     ret->nlp_rpi_hash_next;
2489                 ret->nlp_rpi_hash_next = NULL;
2490                 return ret;
2491         }
2492
2493         while ((ret->nlp_rpi_hash_next != 0) &&
2494                (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) {
2495                 ret = ret->nlp_rpi_hash_next;
2496         }
2497
2498         if (ret->nlp_rpi_hash_next != 0) {
2499                 temp = ret->nlp_rpi_hash_next;
2500                 ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next;
2501                 temp->nlp_rpi_hash_next = NULL;
2502                 return temp;
2503         } else {
2504                 return NULL;
2505         }
2506 }
2507
2508 /*
2509  * This routine adds the node list entry to the
2510  * ndlp hash table.
2511  */
2512 void
2513 lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2514                  uint16_t rpi)
2515 {
2516
2517         uint32_t index;
2518
2519         index = LPFC_RPI_HASH_FUNC(rpi);
2520         ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index];
2521         phba->fc_nlplookup[index] = ndlp;
2522         return;
2523 }
2524
2525 void
2526 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2527                  uint32_t did)
2528 {
2529         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2530         INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2531         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2532         init_timer(&ndlp->nlp_tmofunc);
2533         ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2534         ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2535         init_timer(&ndlp->nlp_delayfunc);
2536         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2537         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2538         ndlp->nlp_DID = did;
2539         ndlp->nlp_phba = phba;
2540         ndlp->nlp_sid = NLP_NO_SID;
2541         return;
2542 }