git.oblomov.eu Git - linux-2.6/blob - drivers/scsi/lpfc/lpfc_hbadisc.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2007 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/pci.h>
  24 #include <linux/kthread.h>
  25 #include <linux/interrupt.h>
  26
  27 #include <scsi/scsi.h>
  28 #include <scsi/scsi_device.h>
  29 #include <scsi/scsi_host.h>
  30 #include <scsi/scsi_transport_fc.h>
  31
  32 #include "lpfc_hw.h"
  33 #include "lpfc_disc.h"
  34 #include "lpfc_sli.h"
  35 #include "lpfc_scsi.h"
  36 #include "lpfc.h"
  37 #include "lpfc_logmsg.h"
  38 #include "lpfc_crtn.h"
  39
  40 /* AlpaArray for assignment of scsid for scan-down and bind_method */
  41 static uint8_t lpfcAlpaArray[] = {
  42         0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
  43         0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
  44         0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
  45         0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
  46         0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
  47         0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
  48         0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
  49         0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
  50         0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
  51         0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
  52         0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
  53         0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
  54         0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
  55 };
  56
  57 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
  58
  59 void
  60 lpfc_terminate_rport_io(struct fc_rport *rport)
  61 {
  62         struct lpfc_rport_data *rdata;
  63         struct lpfc_nodelist * ndlp;
  64         struct lpfc_hba *phba;
  65
  66         rdata = rport->dd_data;
  67         ndlp = rdata->pnode;
  68
  69         if (!ndlp) {
  70                 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
  71                         printk(KERN_ERR "Cannot find remote node"
  72                         " to terminate I/O Data x%x\n",
  73                         rport->port_id);
  74                 return;
  75         }
  76
  77         phba = ndlp->nlp_phba;
  78
  79         spin_lock_irq(phba->host->host_lock);
  80         if (ndlp->nlp_sid != NLP_NO_SID) {
  81                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
  82                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
  83         }
  84         spin_unlock_irq(phba->host->host_lock);
  85
  86         return;
  87 }
  88
  89 /*
  90  * This function will be called when dev_loss_tmo fire.
  91  */
  92 void
  93 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
  94 {
  95         struct lpfc_rport_data *rdata;
  96         struct lpfc_nodelist * ndlp;
  97         uint8_t *name;
  98         int warn_on = 0;
  99         struct lpfc_hba *phba;
 100
 101         rdata = rport->dd_data;
 102         ndlp = rdata->pnode;
 103
 104         if (!ndlp) {
 105                 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
 106                         printk(KERN_ERR "Cannot find remote node"
 107                         " for rport in dev_loss_tmo_callbk x%x\n",
 108                         rport->port_id);
 109                 return;
 110         }
 111
 112         if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
 113                 return;
 114
 115         name = (uint8_t *)&ndlp->nlp_portname;
 116         phba = ndlp->nlp_phba;
 117
 118         spin_lock_irq(phba->host->host_lock);
 119
 120         if (ndlp->nlp_sid != NLP_NO_SID) {
 121                 warn_on = 1;
 122                 /* flush the target */
 123                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
 124                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
 125         }
 126         if (phba->fc_flag & FC_UNLOADING)
 127                 warn_on = 0;
 128
 129         spin_unlock_irq(phba->host->host_lock);
 130
 131         if (warn_on) {
 132                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 133                                 "%d:0203 Devloss timeout on "
 134                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 135                                 "NPort x%x Data: x%x x%x x%x\n",
 136                                 phba->brd_no,
 137                                 *name, *(name+1), *(name+2), *(name+3),
 138                                 *(name+4), *(name+5), *(name+6), *(name+7),
 139                                 ndlp->nlp_DID, ndlp->nlp_flag,
 140                                 ndlp->nlp_state, ndlp->nlp_rpi);
 141         } else {
 142                 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 143                                 "%d:0204 Devloss timeout on "
 144                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 145                                 "NPort x%x Data: x%x x%x x%x\n",
 146                                 phba->brd_no,
 147                                 *name, *(name+1), *(name+2), *(name+3),
 148                                 *(name+4), *(name+5), *(name+6), *(name+7),
 149                                 ndlp->nlp_DID, ndlp->nlp_flag,
 150                                 ndlp->nlp_state, ndlp->nlp_rpi);
 151         }
 152
 153         if (!(phba->fc_flag & FC_UNLOADING) &&
 154             !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
 155             !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
 156             (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
 157                 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
 158         else {
 159                 rdata->pnode = NULL;
 160                 ndlp->rport = NULL;
 161                 lpfc_nlp_put(ndlp);
 162                 put_device(&rport->dev);
 163         }
 164
 165         return;
 166 }
 167
 168 static void
 169 lpfc_work_list_done(struct lpfc_hba * phba)
 170 {
 171         struct lpfc_work_evt  *evtp = NULL;
 172         struct lpfc_nodelist  *ndlp;
 173         int free_evt;
 174
 175         spin_lock_irq(phba->host->host_lock);
 176         while(!list_empty(&phba->work_list)) {
 177                 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
 178                                  evt_listp);
 179                 spin_unlock_irq(phba->host->host_lock);
 180                 free_evt = 1;
 181                 switch (evtp->evt) {
 182                 case LPFC_EVT_ELS_RETRY:
 183                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 184                         lpfc_els_retry_delay_handler(ndlp);
 185                         free_evt = 0;
 186                         break;
 187                 case LPFC_EVT_ONLINE:
 188                         if (phba->hba_state < LPFC_LINK_DOWN)
 189                                 *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
 190                         else
 191                                 *(int *)(evtp->evt_arg1)  = 0;
 192                         complete((struct completion *)(evtp->evt_arg2));
 193                         break;
 194                 case LPFC_EVT_OFFLINE_PREP:
 195                         if (phba->hba_state >= LPFC_LINK_DOWN)
 196                                 lpfc_offline_prep(phba);
 197                         *(int *)(evtp->evt_arg1) = 0;
 198                         complete((struct completion *)(evtp->evt_arg2));
 199                         break;
 200                 case LPFC_EVT_OFFLINE:
 201                         lpfc_offline(phba);
 202                         lpfc_sli_brdrestart(phba);
 203                         *(int *)(evtp->evt_arg1) =
 204                                 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
 205                         lpfc_unblock_mgmt_io(phba);
 206                         complete((struct completion *)(evtp->evt_arg2));
 207                         break;
 208                 case LPFC_EVT_WARM_START:
 209                         lpfc_offline(phba);
 210                         lpfc_reset_barrier(phba);
 211                         lpfc_sli_brdreset(phba);
 212                         lpfc_hba_down_post(phba);
 213                         *(int *)(evtp->evt_arg1) =
 214                                 lpfc_sli_brdready(phba, HS_MBRDY);
 215                         lpfc_unblock_mgmt_io(phba);
 216                         complete((struct completion *)(evtp->evt_arg2));
 217                         break;
 218                 case LPFC_EVT_KILL:
 219                         lpfc_offline(phba);
 220                         *(int *)(evtp->evt_arg1)
 221                                 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
 222                         lpfc_unblock_mgmt_io(phba);
 223                         complete((struct completion *)(evtp->evt_arg2));
 224                         break;
 225                 }
 226                 if (free_evt)
 227                         kfree(evtp);
 228                 spin_lock_irq(phba->host->host_lock);
 229         }
 230         spin_unlock_irq(phba->host->host_lock);
 231
 232 }
 233
 234 static void
 235 lpfc_work_done(struct lpfc_hba * phba)
 236 {
 237         struct lpfc_sli_ring *pring;
 238         int i;
 239         uint32_t ha_copy;
 240         uint32_t control;
 241         uint32_t work_hba_events;
 242
 243         spin_lock_irq(phba->host->host_lock);
 244         ha_copy = phba->work_ha;
 245         phba->work_ha = 0;
 246         work_hba_events=phba->work_hba_events;
 247         spin_unlock_irq(phba->host->host_lock);
 248
 249         if (ha_copy & HA_ERATT)
 250                 lpfc_handle_eratt(phba);
 251
 252         if (ha_copy & HA_MBATT)
 253                 lpfc_sli_handle_mb_event(phba);
 254
 255         if (ha_copy & HA_LATT)
 256                 lpfc_handle_latt(phba);
 257
 258         if (work_hba_events & WORKER_DISC_TMO)
 259                 lpfc_disc_timeout_handler(phba);
 260
 261         if (work_hba_events & WORKER_ELS_TMO)
 262                 lpfc_els_timeout_handler(phba);
 263
 264         if (work_hba_events & WORKER_MBOX_TMO)
 265                 lpfc_mbox_timeout_handler(phba);
 266
 267         if (work_hba_events & WORKER_FDMI_TMO)
 268                 lpfc_fdmi_tmo_handler(phba);
 269
 270         spin_lock_irq(phba->host->host_lock);
 271         phba->work_hba_events &= ~work_hba_events;
 272         spin_unlock_irq(phba->host->host_lock);
 273
 274         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
 275                 pring = &phba->sli.ring[i];
 276                 if ((ha_copy & HA_RXATT)
 277                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
 278                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
 279                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
 280                         } else {
 281                                 lpfc_sli_handle_slow_ring_event(phba, pring,
 282                                                                 (ha_copy &
 283                                                                  HA_RXMASK));
 284                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
 285                         }
 286                         /*
 287                          * Turn on Ring interrupts
 288                          */
 289                         spin_lock_irq(phba->host->host_lock);
 290                         control = readl(phba->HCregaddr);
 291                         control |= (HC_R0INT_ENA << i);
 292                         writel(control, phba->HCregaddr);
 293                         readl(phba->HCregaddr); /* flush */
 294                         spin_unlock_irq(phba->host->host_lock);
 295                 }
 296         }
 297
 298         lpfc_work_list_done (phba);
 299
 300 }
 301
 302 static int
 303 check_work_wait_done(struct lpfc_hba *phba) {
 304
 305         spin_lock_irq(phba->host->host_lock);
 306         if (phba->work_ha ||
 307             phba->work_hba_events ||
 308             (!list_empty(&phba->work_list)) ||
 309             kthread_should_stop()) {
 310                 spin_unlock_irq(phba->host->host_lock);
 311                 return 1;
 312         } else {
 313                 spin_unlock_irq(phba->host->host_lock);
 314                 return 0;
 315         }
 316 }
 317
 318 int
 319 lpfc_do_work(void *p)
 320 {
 321         struct lpfc_hba *phba = p;
 322         int rc;
 323         DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
 324
 325         set_user_nice(current, -20);
 326         phba->work_wait = &work_waitq;
 327
 328         while (1) {
 329
 330                 rc = wait_event_interruptible(work_waitq,
 331                                                 check_work_wait_done(phba));
 332                 BUG_ON(rc);
 333
 334                 if (kthread_should_stop())
 335                         break;
 336
 337                 lpfc_work_done(phba);
 338
 339         }
 340         phba->work_wait = NULL;
 341         return 0;
 342 }
 343
 344 /*
 345  * This is only called to handle FC worker events. Since this a rare
 346  * occurance, we allocate a struct lpfc_work_evt structure here instead of
 347  * embedding it in the IOCB.
 348  */
 349 int
 350 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
 351                       uint32_t evt)
 352 {
 353         struct lpfc_work_evt  *evtp;
 354
 355         /*
 356          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
 357          * be queued to worker thread for processing
 358          */
 359         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
 360         if (!evtp)
 361                 return 0;
 362
 363         evtp->evt_arg1  = arg1;
 364         evtp->evt_arg2  = arg2;
 365         evtp->evt       = evt;
 366
 367         spin_lock_irq(phba->host->host_lock);
 368         list_add_tail(&evtp->evt_listp, &phba->work_list);
 369         if (phba->work_wait)
 370                 wake_up(phba->work_wait);
 371         spin_unlock_irq(phba->host->host_lock);
 372
 373         return 1;
 374 }
 375
 376 int
 377 lpfc_linkdown(struct lpfc_hba *phba)
 378 {
 379         struct lpfc_sli       *psli;
 380         struct lpfc_nodelist  *ndlp, *next_ndlp;
 381         LPFC_MBOXQ_t          *mb;
 382         int                   rc;
 383
 384         psli = &phba->sli;
 385         /* sysfs or selective reset may call this routine to clean up */
 386         if (phba->hba_state >= LPFC_LINK_DOWN) {
 387                 if (phba->hba_state == LPFC_LINK_DOWN)
 388                         return 0;
 389
 390                 spin_lock_irq(phba->host->host_lock);
 391                 phba->hba_state = LPFC_LINK_DOWN;
 392                 spin_unlock_irq(phba->host->host_lock);
 393         }
 394
 395         fc_host_post_event(phba->host, fc_get_event_number(),
 396                         FCH_EVT_LINKDOWN, 0);
 397
 398         /* Clean up any firmware default rpi's */
 399         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 400                 lpfc_unreg_did(phba, 0xffffffff, mb);
 401                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 402                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 403                     == MBX_NOT_FINISHED) {
 404                         mempool_free( mb, phba->mbox_mem_pool);
 405                 }
 406         }
 407
 408         /* Cleanup any outstanding RSCN activity */
 409         lpfc_els_flush_rscn(phba);
 410
 411         /* Cleanup any outstanding ELS commands */
 412         lpfc_els_flush_cmd(phba);
 413
 414         /*
 415          * Issue a LINK DOWN event to all nodes.
 416          */
 417         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes, nlp_listp) {
 418                                 /* free any ndlp's on unused list */
 419                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
 420                         lpfc_drop_node(phba, ndlp);
 421                 else            /* otherwise, force node recovery. */
 422                         rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 423                                                      NLP_EVT_DEVICE_RECOVERY);
 424         }
 425
 426         /* Setup myDID for link up if we are in pt2pt mode */
 427         if (phba->fc_flag & FC_PT2PT) {
 428                 phba->fc_myDID = 0;
 429                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 430                         lpfc_config_link(phba, mb);
 431                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 432                         if (lpfc_sli_issue_mbox
 433                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 434                             == MBX_NOT_FINISHED) {
 435                                 mempool_free( mb, phba->mbox_mem_pool);
 436                         }
 437                 }
 438                 spin_lock_irq(phba->host->host_lock);
 439                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
 440                 spin_unlock_irq(phba->host->host_lock);
 441         }
 442         spin_lock_irq(phba->host->host_lock);
 443         phba->fc_flag &= ~FC_LBIT;
 444         spin_unlock_irq(phba->host->host_lock);
 445
 446         /* Turn off discovery timer if its running */
 447         lpfc_can_disctmo(phba);
 448
 449         /* Must process IOCBs on all rings to handle ABORTed I/Os */
 450         return 0;
 451 }
 452
 453 static int
 454 lpfc_linkup(struct lpfc_hba *phba)
 455 {
 456         struct lpfc_nodelist *ndlp, *next_ndlp;
 457
 458         fc_host_post_event(phba->host, fc_get_event_number(),
 459                         FCH_EVT_LINKUP, 0);
 460
 461         spin_lock_irq(phba->host->host_lock);
 462         phba->hba_state = LPFC_LINK_UP;
 463         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
 464                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
 465         phba->fc_flag |= FC_NDISC_ACTIVE;
 466         phba->fc_ns_retry = 0;
 467         spin_unlock_irq(phba->host->host_lock);
 468
 469
 470         if (phba->fc_flag & FC_LBIT) {
 471                 list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp) {
 472                         if (ndlp->nlp_state != NLP_STE_UNUSED_NODE) {
 473                                 if (ndlp->nlp_type & NLP_FABRIC) {
 474                                         /*
 475                                          * On Linkup its safe to clean up the
 476                                          * ndlp from Fabric connections.
 477                                          */
 478                                         lpfc_nlp_set_state(phba, ndlp,
 479                                                            NLP_STE_UNUSED_NODE);
 480                                 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
 481                                         /*
 482                                          * Fail outstanding IO now since
 483                                          * device is marked for PLOGI.
 484                                          */
 485                                         lpfc_unreg_rpi(phba, ndlp);
 486                                 }
 487                         }
 488                 }
 489         }
 490
 491         /* free any ndlp's on unused list */
 492         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes,
 493                                  nlp_listp) {
 494                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
 495                         lpfc_drop_node(phba, ndlp);
 496         }
 497
 498         return 0;
 499 }
 500
 501 /*
 502  * This routine handles processing a CLEAR_LA mailbox
 503  * command upon completion. It is setup in the LPFC_MBOXQ
 504  * as the completion routine when the command is
 505  * handed off to the SLI layer.
 506  */
 507 void
 508 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 509 {
 510         struct lpfc_sli *psli;
 511         MAILBOX_t *mb;
 512         uint32_t control;
 513
 514         psli = &phba->sli;
 515         mb = &pmb->mb;
 516         /* Since we don't do discovery right now, turn these off here */
 517         psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 518         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 519         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 520
 521         /* Check for error */
 522         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
 523                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
 524                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 525                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
 526                                 "state x%x\n",
 527                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 528
 529                 phba->hba_state = LPFC_HBA_ERROR;
 530                 goto out;
 531         }
 532
 533         if (phba->fc_flag & FC_ABORT_DISCOVERY)
 534                 goto out;
 535
 536         phba->num_disc_nodes = 0;
 537         /* go thru NPR list and issue ELS PLOGIs */
 538         if (phba->fc_npr_cnt) {
 539                 lpfc_els_disc_plogi(phba);
 540         }
 541
 542         if (!phba->num_disc_nodes) {
 543                 spin_lock_irq(phba->host->host_lock);
 544                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 545                 spin_unlock_irq(phba->host->host_lock);
 546         }
 547
 548         phba->hba_state = LPFC_HBA_READY;
 549
 550 out:
 551         /* Device Discovery completes */
 552         lpfc_printf_log(phba,
 553                          KERN_INFO,
 554                          LOG_DISCOVERY,
 555                          "%d:0225 Device Discovery completes\n",
 556                          phba->brd_no);
 557
 558         mempool_free( pmb, phba->mbox_mem_pool);
 559
 560         spin_lock_irq(phba->host->host_lock);
 561         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
 562         if (phba->fc_flag & FC_ESTABLISH_LINK) {
 563                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
 564         }
 565         spin_unlock_irq(phba->host->host_lock);
 566
 567         del_timer_sync(&phba->fc_estabtmo);
 568
 569         lpfc_can_disctmo(phba);
 570
 571         /* turn on Link Attention interrupts */
 572         spin_lock_irq(phba->host->host_lock);
 573         psli->sli_flag |= LPFC_PROCESS_LA;
 574         control = readl(phba->HCregaddr);
 575         control |= HC_LAINT_ENA;
 576         writel(control, phba->HCregaddr);
 577         readl(phba->HCregaddr); /* flush */
 578         spin_unlock_irq(phba->host->host_lock);
 579
 580         return;
 581 }
 582
 583 static void
 584 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 585 {
 586         struct lpfc_sli *psli = &phba->sli;
 587         int rc;
 588
 589         if (pmb->mb.mbxStatus)
 590                 goto out;
 591
 592         mempool_free(pmb, phba->mbox_mem_pool);
 593
 594         if (phba->fc_topology == TOPOLOGY_LOOP &&
 595                 phba->fc_flag & FC_PUBLIC_LOOP &&
 596                  !(phba->fc_flag & FC_LBIT)) {
 597                         /* Need to wait for FAN - use discovery timer
 598                          * for timeout.  hba_state is identically
 599                          * LPFC_LOCAL_CFG_LINK while waiting for FAN
 600                          */
 601                         lpfc_set_disctmo(phba);
 602                         return;
 603                 }
 604
 605         /* Start discovery by sending a FLOGI. hba_state is identically
 606          * LPFC_FLOGI while waiting for FLOGI cmpl
 607          */
 608         phba->hba_state = LPFC_FLOGI;
 609         lpfc_set_disctmo(phba);
 610         lpfc_initial_flogi(phba);
 611         return;
 612
 613 out:
 614         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 615                         "%d:0306 CONFIG_LINK mbxStatus error x%x "
 616                         "HBA state x%x\n",
 617                         phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
 618
 619         lpfc_linkdown(phba);
 620
 621         phba->hba_state = LPFC_HBA_ERROR;
 622
 623         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 624                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
 625                         phba->brd_no, phba->hba_state);
 626
 627         lpfc_clear_la(phba, pmb);
 628         pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 629         rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 630         if (rc == MBX_NOT_FINISHED) {
 631                 mempool_free(pmb, phba->mbox_mem_pool);
 632                 lpfc_disc_flush_list(phba);
 633                 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 634                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 635                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 636                 phba->hba_state = LPFC_HBA_READY;
 637         }
 638         return;
 639 }
 640
 641 static void
 642 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 643 {
 644         struct lpfc_sli *psli = &phba->sli;
 645         MAILBOX_t *mb = &pmb->mb;
 646         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
 647
 648
 649         /* Check for error */
 650         if (mb->mbxStatus) {
 651                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
 652                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 653                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
 654                                 "hba state x%x>\n",
 655                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 656
 657                 lpfc_linkdown(phba);
 658                 phba->hba_state = LPFC_HBA_ERROR;
 659                 goto out;
 660         }
 661
 662         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 663                sizeof (struct serv_parm));
 664         if (phba->cfg_soft_wwnn)
 665                 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
 666         if (phba->cfg_soft_wwpn)
 667                 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 668         memcpy((uint8_t *) & phba->fc_nodename,
 669                (uint8_t *) & phba->fc_sparam.nodeName,
 670                sizeof (struct lpfc_name));
 671         memcpy((uint8_t *) & phba->fc_portname,
 672                (uint8_t *) & phba->fc_sparam.portName,
 673                sizeof (struct lpfc_name));
 674         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 675         kfree(mp);
 676         mempool_free( pmb, phba->mbox_mem_pool);
 677         return;
 678
 679 out:
 680         pmb->context1 = NULL;
 681         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 682         kfree(mp);
 683         if (phba->hba_state != LPFC_CLEAR_LA) {
 684                 lpfc_clear_la(phba, pmb);
 685                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 686                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 687                     == MBX_NOT_FINISHED) {
 688                         mempool_free( pmb, phba->mbox_mem_pool);
 689                         lpfc_disc_flush_list(phba);
 690                         psli->ring[(psli->extra_ring)].flag &=
 691                             ~LPFC_STOP_IOCB_EVENT;
 692                         psli->ring[(psli->fcp_ring)].flag &=
 693                             ~LPFC_STOP_IOCB_EVENT;
 694                         psli->ring[(psli->next_ring)].flag &=
 695                             ~LPFC_STOP_IOCB_EVENT;
 696                         phba->hba_state = LPFC_HBA_READY;
 697                 }
 698         } else {
 699                 mempool_free( pmb, phba->mbox_mem_pool);
 700         }
 701         return;
 702 }
 703
 704 static void
 705 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
 706 {
 707         int i;
 708         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
 709         struct lpfc_dmabuf *mp;
 710         int rc;
 711
 712         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 713         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 714
 715         spin_lock_irq(phba->host->host_lock);
 716         switch (la->UlnkSpeed) {
 717                 case LA_1GHZ_LINK:
 718                         phba->fc_linkspeed = LA_1GHZ_LINK;
 719                         break;
 720                 case LA_2GHZ_LINK:
 721                         phba->fc_linkspeed = LA_2GHZ_LINK;
 722                         break;
 723                 case LA_4GHZ_LINK:
 724                         phba->fc_linkspeed = LA_4GHZ_LINK;
 725                         break;
 726                 case LA_8GHZ_LINK:
 727                         phba->fc_linkspeed = LA_8GHZ_LINK;
 728                         break;
 729                 default:
 730                         phba->fc_linkspeed = LA_UNKNW_LINK;
 731                         break;
 732         }
 733
 734         phba->fc_topology = la->topology;
 735
 736         if (phba->fc_topology == TOPOLOGY_LOOP) {
 737         /* Get Loop Map information */
 738
 739                 if (la->il)
 740                         phba->fc_flag |= FC_LBIT;
 741
 742                 phba->fc_myDID = la->granted_AL_PA;
 743                 i = la->un.lilpBde64.tus.f.bdeSize;
 744
 745                 if (i == 0) {
 746                         phba->alpa_map[0] = 0;
 747                 } else {
 748                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
 749                                 int numalpa, j, k;
 750                                 union {
 751                                         uint8_t pamap[16];
 752                                         struct {
 753                                                 uint32_t wd1;
 754                                                 uint32_t wd2;
 755                                                 uint32_t wd3;
 756                                                 uint32_t wd4;
 757                                         } pa;
 758                                 } un;
 759                                 numalpa = phba->alpa_map[0];
 760                                 j = 0;
 761                                 while (j < numalpa) {
 762                                         memset(un.pamap, 0, 16);
 763                                         for (k = 1; j < numalpa; k++) {
 764                                                 un.pamap[k - 1] =
 765                                                         phba->alpa_map[j + 1];
 766                                                 j++;
 767                                                 if (k == 16)
 768                                                         break;
 769                                         }
 770                                         /* Link Up Event ALPA map */
 771                                         lpfc_printf_log(phba,
 772                                                 KERN_WARNING,
 773                                                 LOG_LINK_EVENT,
 774                                                 "%d:1304 Link Up Event "
 775                                                 "ALPA map Data: x%x "
 776                                                 "x%x x%x x%x\n",
 777                                                 phba->brd_no,
 778                                                 un.pa.wd1, un.pa.wd2,
 779                                                 un.pa.wd3, un.pa.wd4);
 780                                 }
 781                         }
 782                 }
 783         } else {
 784                 phba->fc_myDID = phba->fc_pref_DID;
 785                 phba->fc_flag |= FC_LBIT;
 786         }
 787         spin_unlock_irq(phba->host->host_lock);
 788
 789         lpfc_linkup(phba);
 790         if (sparam_mbox) {
 791                 lpfc_read_sparam(phba, sparam_mbox);
 792                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
 793                 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
 794                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 795                 if (rc == MBX_NOT_FINISHED) {
 796                         mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
 797                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 798                         kfree(mp);
 799                         mempool_free(sparam_mbox, phba->mbox_mem_pool);
 800                         if (cfglink_mbox)
 801                                 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
 802                         return;
 803                 }
 804         }
 805
 806         if (cfglink_mbox) {
 807                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
 808                 lpfc_config_link(phba, cfglink_mbox);
 809                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
 810                 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
 811                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 812                 if (rc == MBX_NOT_FINISHED)
 813                         mempool_free(cfglink_mbox, phba->mbox_mem_pool);
 814         }
 815 }
 816
 817 static void
 818 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
 819         uint32_t control;
 820         struct lpfc_sli *psli = &phba->sli;
 821
 822         lpfc_linkdown(phba);
 823
 824         /* turn on Link Attention interrupts - no CLEAR_LA needed */
 825         spin_lock_irq(phba->host->host_lock);
 826         psli->sli_flag |= LPFC_PROCESS_LA;
 827         control = readl(phba->HCregaddr);
 828         control |= HC_LAINT_ENA;
 829         writel(control, phba->HCregaddr);
 830         readl(phba->HCregaddr); /* flush */
 831         spin_unlock_irq(phba->host->host_lock);
 832 }
 833
 834 /*
 835  * This routine handles processing a READ_LA mailbox
 836  * command upon completion. It is setup in the LPFC_MBOXQ
 837  * as the completion routine when the command is
 838  * handed off to the SLI layer.
 839  */
 840 void
 841 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 842 {
 843         READ_LA_VAR *la;
 844         MAILBOX_t *mb = &pmb->mb;
 845         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 846
 847         /* Check for error */
 848         if (mb->mbxStatus) {
 849                 lpfc_printf_log(phba,
 850                                 KERN_INFO,
 851                                 LOG_LINK_EVENT,
 852                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
 853                                 phba->brd_no,
 854                                 mb->mbxStatus, phba->hba_state);
 855                 lpfc_mbx_issue_link_down(phba);
 856                 phba->hba_state = LPFC_HBA_ERROR;
 857                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
 858         }
 859
 860         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
 861
 862         memcpy(&phba->alpa_map[0], mp->virt, 128);
 863
 864         spin_lock_irq(phba->host->host_lock);
 865         if (la->pb)
 866                 phba->fc_flag |= FC_BYPASSED_MODE;
 867         else
 868                 phba->fc_flag &= ~FC_BYPASSED_MODE;
 869         spin_unlock_irq(phba->host->host_lock);
 870
 871         if (((phba->fc_eventTag + 1) < la->eventTag) ||
 872              (phba->fc_eventTag == la->eventTag)) {
 873                 phba->fc_stat.LinkMultiEvent++;
 874                 if (la->attType == AT_LINK_UP) {
 875                         if (phba->fc_eventTag != 0)
 876                                 lpfc_linkdown(phba);
 877                 }
 878         }
 879
 880         phba->fc_eventTag = la->eventTag;
 881
 882         if (la->attType == AT_LINK_UP) {
 883                 phba->fc_stat.LinkUp++;
 884                 if (phba->fc_flag & FC_LOOPBACK_MODE) {
 885                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
 886                                 "%d:1306 Link Up Event in loop back mode "
 887                                 "x%x received Data: x%x x%x x%x x%x\n",
 888                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 889                                 la->granted_AL_PA, la->UlnkSpeed,
 890                                 phba->alpa_map[0]);
 891                 } else {
 892                         lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 893                                 "%d:1303 Link Up Event x%x received "
 894                                 "Data: x%x x%x x%x x%x\n",
 895                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 896                                 la->granted_AL_PA, la->UlnkSpeed,
 897                                 phba->alpa_map[0]);
 898                 }
 899                 lpfc_mbx_process_link_up(phba, la);
 900         } else {
 901                 phba->fc_stat.LinkDown++;
 902                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 903                                 "%d:1305 Link Down Event x%x received "
 904                                 "Data: x%x x%x x%x\n",
 905                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 906                                 phba->hba_state, phba->fc_flag);
 907                 lpfc_mbx_issue_link_down(phba);
 908         }
 909
 910 lpfc_mbx_cmpl_read_la_free_mbuf:
 911         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 912         kfree(mp);
 913         mempool_free(pmb, phba->mbox_mem_pool);
 914         return;
 915 }
 916
 917 /*
 918  * This routine handles processing a REG_LOGIN mailbox
 919  * command upon completion. It is setup in the LPFC_MBOXQ
 920  * as the completion routine when the command is
 921  * handed off to the SLI layer.
 922  */
 923 void
 924 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 925 {
 926         struct lpfc_sli *psli;
 927         MAILBOX_t *mb;
 928         struct lpfc_dmabuf *mp;
 929         struct lpfc_nodelist *ndlp;
 930
 931         psli = &phba->sli;
 932         mb = &pmb->mb;
 933
 934         ndlp = (struct lpfc_nodelist *) pmb->context2;
 935         mp = (struct lpfc_dmabuf *) (pmb->context1);
 936
 937         pmb->context1 = NULL;
 938
 939         /* Good status, call state machine */
 940         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 941         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 942         kfree(mp);
 943         mempool_free( pmb, phba->mbox_mem_pool);
 944         lpfc_nlp_put(ndlp);
 945
 946         return;
 947 }
 948
 949 /*
 950  * This routine handles processing a Fabric REG_LOGIN mailbox
 951  * command upon completion. It is setup in the LPFC_MBOXQ
 952  * as the completion routine when the command is
 953  * handed off to the SLI layer.
 954  */
 955 void
 956 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 957 {
 958         struct lpfc_sli *psli;
 959         MAILBOX_t *mb;
 960         struct lpfc_dmabuf *mp;
 961         struct lpfc_nodelist *ndlp;
 962         struct lpfc_nodelist *ndlp_fdmi;
 963
 964
 965         psli = &phba->sli;
 966         mb = &pmb->mb;
 967
 968         ndlp = (struct lpfc_nodelist *) pmb->context2;
 969         mp = (struct lpfc_dmabuf *) (pmb->context1);
 970
 971         pmb->context1 = NULL;
 972         pmb->context2 = NULL;
 973
 974         if (mb->mbxStatus) {
 975                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 976                 kfree(mp);
 977                 mempool_free(pmb, phba->mbox_mem_pool);
 978                 lpfc_nlp_put(ndlp);
 979
 980                 /* FLOGI failed, so just use loop map to make discovery list */
 981                 lpfc_disc_list_loopmap(phba);
 982
 983                 /* Start discovery */
 984                 lpfc_disc_start(phba);
 985                 return;
 986         }
 987
 988         ndlp->nlp_rpi = mb->un.varWords[0];
 989         ndlp->nlp_type |= NLP_FABRIC;
 990         lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
 991
 992         lpfc_nlp_put(ndlp);     /* Drop the reference from the mbox */
 993
 994         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 995                 /* This NPort has been assigned an NPort_ID by the fabric as a
 996                  * result of the completed fabric login.  Issue a State Change
 997                  * Registration (SCR) ELS request to the fabric controller
 998                  * (SCR_DID) so that this NPort gets RSCN events from the
 999                  * fabric.
1000                  */
1001                 lpfc_issue_els_scr(phba, SCR_DID, 0);
1002
1003                 ndlp = lpfc_findnode_did(phba, NameServer_DID);
1004                 if (!ndlp) {
1005                         /* Allocate a new node instance. If the pool is empty,
1006                          * start the discovery process and skip the Nameserver
1007                          * login process.  This is attempted again later on.
1008                          * Otherwise, issue a Port Login (PLOGI) to NameServer.
1009                          */
1010                         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1011                         if (!ndlp) {
1012                                 lpfc_disc_start(phba);
1013                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1014                                 kfree(mp);
1015                                 mempool_free(pmb, phba->mbox_mem_pool);
1016                                 return;
1017                         } else {
1018                                 lpfc_nlp_init(phba, ndlp, NameServer_DID);
1019                                 ndlp->nlp_type |= NLP_FABRIC;
1020                         }
1021                 }
1022                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_PLOGI_ISSUE);
1023                 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
1024                 if (phba->cfg_fdmi_on) {
1025                         ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
1026                                                                 GFP_KERNEL);
1027                         if (ndlp_fdmi) {
1028                                 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
1029                                 ndlp_fdmi->nlp_type |= NLP_FABRIC;
1030                                 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
1031                                 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
1032                         }
1033                 }
1034         }
1035
1036         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1037         kfree(mp);
1038         mempool_free(pmb, phba->mbox_mem_pool);
1039         return;
1040 }
1041
1042 /*
1043  * This routine handles processing a NameServer REG_LOGIN mailbox
1044  * command upon completion. It is setup in the LPFC_MBOXQ
1045  * as the completion routine when the command is
1046  * handed off to the SLI layer.
1047  */
1048 void
1049 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1050 {
1051         struct lpfc_sli *psli;
1052         MAILBOX_t *mb;
1053         struct lpfc_dmabuf *mp;
1054         struct lpfc_nodelist *ndlp;
1055
1056         psli = &phba->sli;
1057         mb = &pmb->mb;
1058
1059         ndlp = (struct lpfc_nodelist *) pmb->context2;
1060         mp = (struct lpfc_dmabuf *) (pmb->context1);
1061
1062         if (mb->mbxStatus) {
1063                 lpfc_nlp_put(ndlp);
1064                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1065                 kfree(mp);
1066                 mempool_free(pmb, phba->mbox_mem_pool);
1067                 lpfc_drop_node(phba, ndlp);
1068
1069                 /* RegLogin failed, so just use loop map to make discovery
1070                    list */
1071                 lpfc_disc_list_loopmap(phba);
1072
1073                 /* Start discovery */
1074                 lpfc_disc_start(phba);
1075                 return;
1076         }
1077
1078         pmb->context1 = NULL;
1079
1080         ndlp->nlp_rpi = mb->un.varWords[0];
1081         ndlp->nlp_type |= NLP_FABRIC;
1082         lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
1083
1084         if (phba->hba_state < LPFC_HBA_READY) {
1085                 /* Link up discovery requires Fabrib registration. */
1086                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1087                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1088                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1089                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
1090         }
1091
1092         phba->fc_ns_retry = 0;
1093         /* Good status, issue CT Request to NameServer */
1094         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1095                 /* Cannot issue NameServer Query, so finish up discovery */
1096                 lpfc_disc_start(phba);
1097         }
1098
1099         lpfc_nlp_put(ndlp);
1100         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1101         kfree(mp);
1102         mempool_free( pmb, phba->mbox_mem_pool);
1103
1104         return;
1105 }
1106
1107 static void
1108 lpfc_register_remote_port(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1109 {
1110         struct fc_rport *rport;
1111         struct lpfc_rport_data *rdata;
1112         struct fc_rport_identifiers rport_ids;
1113
1114         /* Remote port has reappeared. Re-register w/ FC transport */
1115         rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1116         rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1117         rport_ids.port_id = ndlp->nlp_DID;
1118         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1119
1120         /*
1121          * We leave our node pointer in rport->dd_data when we unregister a
1122          * FCP target port.  But fc_remote_port_add zeros the space to which
1123          * rport->dd_data points.  So, if we're reusing a previously
1124          * registered port, drop the reference that we took the last time we
1125          * registered the port.
1126          */
1127         if (ndlp->rport && ndlp->rport->dd_data &&
1128             *(struct lpfc_rport_data **) ndlp->rport->dd_data) {
1129                 lpfc_nlp_put(ndlp);
1130         }
1131         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1132         if (!rport || !get_device(&rport->dev)) {
1133                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1134                            "Warning: fc_remote_port_add failed\n");
1135                 return;
1136         }
1137
1138         /* initialize static port data */
1139         rport->maxframe_size = ndlp->nlp_maxframe;
1140         rport->supported_classes = ndlp->nlp_class_sup;
1141         rdata = rport->dd_data;
1142         rdata->pnode = lpfc_nlp_get(ndlp);
1143
1144         if (ndlp->nlp_type & NLP_FCP_TARGET)
1145                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1146         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1147                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1148
1149
1150         if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
1151                 fc_remote_port_rolechg(rport, rport_ids.roles);
1152
1153         if ((rport->scsi_target_id != -1) &&
1154                 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1155                 ndlp->nlp_sid = rport->scsi_target_id;
1156         }
1157
1158         return;
1159 }
1160
1161 static void
1162 lpfc_unregister_remote_port(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1163 {
1164         struct fc_rport *rport = ndlp->rport;
1165         struct lpfc_rport_data *rdata = rport->dd_data;
1166
1167         if (rport->scsi_target_id == -1) {
1168                 ndlp->rport = NULL;
1169                 rdata->pnode = NULL;
1170                 lpfc_nlp_put(ndlp);
1171                 put_device(&rport->dev);
1172         }
1173
1174         fc_remote_port_delete(rport);
1175
1176         return;
1177 }
1178
1179 static void
1180 lpfc_nlp_counters(struct lpfc_hba *phba, int state, int count)
1181 {
1182         spin_lock_irq(phba->host->host_lock);
1183         switch (state) {
1184         case NLP_STE_UNUSED_NODE:
1185                 phba->fc_unused_cnt += count;
1186                 break;
1187         case NLP_STE_PLOGI_ISSUE:
1188                 phba->fc_plogi_cnt += count;
1189                 break;
1190         case NLP_STE_ADISC_ISSUE:
1191                 phba->fc_adisc_cnt += count;
1192                 break;
1193         case NLP_STE_REG_LOGIN_ISSUE:
1194                 phba->fc_reglogin_cnt += count;
1195                 break;
1196         case NLP_STE_PRLI_ISSUE:
1197                 phba->fc_prli_cnt += count;
1198                 break;
1199         case NLP_STE_UNMAPPED_NODE:
1200                 phba->fc_unmap_cnt += count;
1201                 break;
1202         case NLP_STE_MAPPED_NODE:
1203                 phba->fc_map_cnt += count;
1204                 break;
1205         case NLP_STE_NPR_NODE:
1206                 phba->fc_npr_cnt += count;
1207                 break;
1208         }
1209         spin_unlock_irq(phba->host->host_lock);
1210 }
1211
1212 static void
1213 lpfc_nlp_state_cleanup(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1214                        int old_state, int new_state)
1215 {
1216         if (new_state == NLP_STE_UNMAPPED_NODE) {
1217                 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1218                 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1219                 ndlp->nlp_type |= NLP_FC_NODE;
1220         }
1221         if (new_state == NLP_STE_MAPPED_NODE)
1222                 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1223         if (new_state == NLP_STE_NPR_NODE)
1224                 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1225
1226         /* Transport interface */
1227         if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1228                             old_state == NLP_STE_UNMAPPED_NODE)) {
1229                 phba->nport_event_cnt++;
1230                 lpfc_unregister_remote_port(phba, ndlp);
1231         }
1232
1233         if (new_state ==  NLP_STE_MAPPED_NODE ||
1234             new_state == NLP_STE_UNMAPPED_NODE) {
1235                 phba->nport_event_cnt++;
1236                         /*
1237                          * Tell the fc transport about the port, if we haven't
1238                          * already. If we have, and it's a scsi entity, be
1239                          * sure to unblock any attached scsi devices
1240                          */
1241                         lpfc_register_remote_port(phba, ndlp);
1242         }
1243
1244                         /*
1245                          * if we added to Mapped list, but the remote port
1246                          * registration failed or assigned a target id outside
1247                          * our presentable range - move the node to the
1248                          * Unmapped List
1249                          */
1250         if (new_state == NLP_STE_MAPPED_NODE &&
1251             (!ndlp->rport ||
1252              ndlp->rport->scsi_target_id == -1 ||
1253              ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
1254                 spin_lock_irq(phba->host->host_lock);
1255                 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1256                 spin_unlock_irq(phba->host->host_lock);
1257                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
1258         }
1259 }
1260
1261 static char *
1262 lpfc_nlp_state_name(char *buffer, size_t size, int state)
1263 {
1264         static char *states[] = {
1265                 [NLP_STE_UNUSED_NODE] = "UNUSED",
1266                 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1267                 [NLP_STE_ADISC_ISSUE] = "ADISC",
1268                 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1269                 [NLP_STE_PRLI_ISSUE] = "PRLI",
1270                 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1271                 [NLP_STE_MAPPED_NODE] = "MAPPED",
1272                 [NLP_STE_NPR_NODE] = "NPR",
1273         };
1274
1275         if (state < ARRAY_SIZE(states) && states[state])
1276                 strlcpy(buffer, states[state], size);
1277         else
1278                 snprintf(buffer, size, "unknown (%d)", state);
1279         return buffer;
1280 }
1281
1282 void
1283 lpfc_nlp_set_state(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int state)
1284 {
1285         int  old_state = ndlp->nlp_state;
1286         char name1[16], name2[16];
1287
1288         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1289                         "%d:0904 NPort state transition x%06x, %s -> %s\n",
1290                         phba->brd_no,
1291                         ndlp->nlp_DID,
1292                         lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1293                         lpfc_nlp_state_name(name2, sizeof(name2), state));
1294         if (old_state == NLP_STE_NPR_NODE &&
1295             (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1296             state != NLP_STE_NPR_NODE)
1297                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1298         if (old_state == NLP_STE_UNMAPPED_NODE) {
1299                 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1300                 ndlp->nlp_type &= ~NLP_FC_NODE;
1301         }
1302
1303         if (list_empty(&ndlp->nlp_listp)) {
1304                 spin_lock_irq(phba->host->host_lock);
1305                 list_add_tail(&ndlp->nlp_listp, &phba->fc_nodes);
1306                 spin_unlock_irq(phba->host->host_lock);
1307         } else if (old_state)
1308                 lpfc_nlp_counters(phba, old_state, -1);
1309
1310         ndlp->nlp_state = state;
1311         lpfc_nlp_counters(phba, state, 1);
1312         lpfc_nlp_state_cleanup(phba, ndlp, old_state, state);
1313 }
1314
1315 void
1316 lpfc_dequeue_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1317 {
1318         if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1319                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1320         if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1321                 lpfc_nlp_counters(phba, ndlp->nlp_state, -1);
1322         spin_lock_irq(phba->host->host_lock);
1323         list_del_init(&ndlp->nlp_listp);
1324         spin_unlock_irq(phba->host->host_lock);
1325         lpfc_nlp_state_cleanup(phba, ndlp, ndlp->nlp_state, 0);
1326 }
1327
1328 void
1329 lpfc_drop_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1330 {
1331         if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1332                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1333         if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1334                 lpfc_nlp_counters(phba, ndlp->nlp_state, -1);
1335         spin_lock_irq(phba->host->host_lock);
1336         list_del_init(&ndlp->nlp_listp);
1337         spin_unlock_irq(phba->host->host_lock);
1338         lpfc_nlp_put(ndlp);
1339 }
1340
1341 /*
1342  * Start / ReStart rescue timer for Discovery / RSCN handling
1343  */
1344 void
1345 lpfc_set_disctmo(struct lpfc_hba * phba)
1346 {
1347         uint32_t tmo;
1348
1349         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1350                 /* For FAN, timeout should be greater then edtov */
1351                 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1352         } else {
1353                 /* Normal discovery timeout should be > then ELS/CT timeout
1354                  * FC spec states we need 3 * ratov for CT requests
1355                  */
1356                 tmo = ((phba->fc_ratov * 3) + 3);
1357         }
1358
1359         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1360         spin_lock_irq(phba->host->host_lock);
1361         phba->fc_flag |= FC_DISC_TMO;
1362         spin_unlock_irq(phba->host->host_lock);
1363
1364         /* Start Discovery Timer state <hba_state> */
1365         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1366                         "%d:0247 Start Discovery Timer state x%x "
1367                         "Data: x%x x%lx x%x x%x\n",
1368                         phba->brd_no,
1369                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1370                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1371
1372         return;
1373 }
1374
1375 /*
1376  * Cancel rescue timer for Discovery / RSCN handling
1377  */
1378 int
1379 lpfc_can_disctmo(struct lpfc_hba * phba)
1380 {
1381         /* Turn off discovery timer if its running */
1382         if (phba->fc_flag & FC_DISC_TMO) {
1383                 spin_lock_irq(phba->host->host_lock);
1384                 phba->fc_flag &= ~FC_DISC_TMO;
1385                 spin_unlock_irq(phba->host->host_lock);
1386                 del_timer_sync(&phba->fc_disctmo);
1387                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1388         }
1389
1390         /* Cancel Discovery Timer state <hba_state> */
1391         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1392                         "%d:0248 Cancel Discovery Timer state x%x "
1393                         "Data: x%x x%x x%x\n",
1394                         phba->brd_no, phba->hba_state, phba->fc_flag,
1395                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1396
1397         return 0;
1398 }
1399
1400 /*
1401  * Check specified ring for outstanding IOCB on the SLI queue
1402  * Return true if iocb matches the specified nport
1403  */
1404 int
1405 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1406                     struct lpfc_sli_ring * pring,
1407                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1408 {
1409         struct lpfc_sli *psli;
1410         IOCB_t *icmd;
1411
1412         psli = &phba->sli;
1413         icmd = &iocb->iocb;
1414         if (pring->ringno == LPFC_ELS_RING) {
1415                 switch (icmd->ulpCommand) {
1416                 case CMD_GEN_REQUEST64_CR:
1417                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1418                                 return 1;
1419                 case CMD_ELS_REQUEST64_CR:
1420                         if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1421                                 return 1;
1422                 case CMD_XMIT_ELS_RSP64_CX:
1423                         if (iocb->context1 == (uint8_t *) ndlp)
1424                                 return 1;
1425                 }
1426         } else if (pring->ringno == psli->extra_ring) {
1427
1428         } else if (pring->ringno == psli->fcp_ring) {
1429                 /* Skip match check if waiting to relogin to FCP target */
1430                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1431                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1432                         return 0;
1433                 }
1434                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1435                         return 1;
1436                 }
1437         } else if (pring->ringno == psli->next_ring) {
1438
1439         }
1440         return 0;
1441 }
1442
1443 /*
1444  * Free resources / clean up outstanding I/Os
1445  * associated with nlp_rpi in the LPFC_NODELIST entry.
1446  */
1447 static int
1448 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1449 {
1450         LIST_HEAD(completions);
1451         struct lpfc_sli *psli;
1452         struct lpfc_sli_ring *pring;
1453         struct lpfc_iocbq *iocb, *next_iocb;
1454         IOCB_t *icmd;
1455         uint32_t rpi, i;
1456
1457         /*
1458          * Everything that matches on txcmplq will be returned
1459          * by firmware with a no rpi error.
1460          */
1461         psli = &phba->sli;
1462         rpi = ndlp->nlp_rpi;
1463         if (rpi) {
1464                 /* Now process each ring */
1465                 for (i = 0; i < psli->num_rings; i++) {
1466                         pring = &psli->ring[i];
1467
1468                         spin_lock_irq(phba->host->host_lock);
1469                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1470                                                 list) {
1471                                 /*
1472                                  * Check to see if iocb matches the nport we are
1473                                  * looking for
1474                                  */
1475                                 if ((lpfc_check_sli_ndlp
1476                                      (phba, pring, iocb, ndlp))) {
1477                                         /* It matches, so deque and call compl
1478                                            with an error */
1479                                         list_move_tail(&iocb->list,
1480                                                        &completions);
1481                                         pring->txq_cnt--;
1482                                 }
1483                         }
1484                         spin_unlock_irq(phba->host->host_lock);
1485
1486                 }
1487         }
1488
1489         while (!list_empty(&completions)) {
1490                 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1491                 list_del(&iocb->list);
1492
1493                 if (iocb->iocb_cmpl) {
1494                         icmd = &iocb->iocb;
1495                         icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1496                         icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1497                         (iocb->iocb_cmpl) (phba, iocb, iocb);
1498                 } else
1499                         lpfc_sli_release_iocbq(phba, iocb);
1500         }
1501
1502         return 0;
1503 }
1504
1505 /*
1506  * Free rpi associated with LPFC_NODELIST entry.
1507  * This routine is called from lpfc_freenode(), when we are removing
1508  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1509  * LOGO that completes successfully, and we are waiting to PLOGI back
1510  * to the remote NPort. In addition, it is called after we receive
1511  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1512  * we are waiting to PLOGI back to the remote NPort.
1513  */
1514 int
1515 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1516 {
1517         LPFC_MBOXQ_t *mbox;
1518         int rc;
1519
1520         if (ndlp->nlp_rpi) {
1521                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1522                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1523                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1524                         rc = lpfc_sli_issue_mbox
1525                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1526                         if (rc == MBX_NOT_FINISHED)
1527                                 mempool_free( mbox, phba->mbox_mem_pool);
1528                 }
1529                 lpfc_no_rpi(phba, ndlp);
1530                 ndlp->nlp_rpi = 0;
1531                 return 1;
1532         }
1533         return 0;
1534 }
1535
1536 /*
1537  * Free resources associated with LPFC_NODELIST entry
1538  * so it can be freed.
1539  */
1540 static int
1541 lpfc_cleanup_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1542 {
1543         LPFC_MBOXQ_t       *mb;
1544         LPFC_MBOXQ_t       *nextmb;
1545         struct lpfc_dmabuf *mp;
1546
1547         /* Cleanup node for NPort <nlp_DID> */
1548         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1549                         "%d:0900 Cleanup node for NPort x%x "
1550                         "Data: x%x x%x x%x\n",
1551                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1552                         ndlp->nlp_state, ndlp->nlp_rpi);
1553
1554         lpfc_dequeue_node(phba, ndlp);
1555
1556         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1557         if ((mb = phba->sli.mbox_active)) {
1558                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1559                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1560                         mb->context2 = NULL;
1561                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1562                 }
1563         }
1564
1565         spin_lock_irq(phba->host->host_lock);
1566         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1567                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1568                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1569                         mp = (struct lpfc_dmabuf *) (mb->context1);
1570                         if (mp) {
1571                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1572                                 kfree(mp);
1573                         }
1574                         list_del(&mb->list);
1575                         mempool_free(mb, phba->mbox_mem_pool);
1576                         lpfc_nlp_put(ndlp);
1577                 }
1578         }
1579         spin_unlock_irq(phba->host->host_lock);
1580
1581         lpfc_els_abort(phba,ndlp);
1582         spin_lock_irq(phba->host->host_lock);
1583         ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1584         spin_unlock_irq(phba->host->host_lock);
1585
1586         ndlp->nlp_last_elscmd = 0;
1587         del_timer_sync(&ndlp->nlp_delayfunc);
1588
1589         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1590                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1591
1592         lpfc_unreg_rpi(phba, ndlp);
1593
1594         return 0;
1595 }
1596
1597 /*
1598  * Check to see if we can free the nlp back to the freelist.
1599  * If we are in the middle of using the nlp in the discovery state
1600  * machine, defer the free till we reach the end of the state machine.
1601  */
1602 static void
1603 lpfc_nlp_remove(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1604 {
1605         struct lpfc_rport_data *rdata;
1606
1607         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1608                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1609         }
1610
1611         lpfc_cleanup_node(phba, ndlp);
1612
1613         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1614                 put_device(&ndlp->rport->dev);
1615                 rdata = ndlp->rport->dd_data;
1616                 rdata->pnode = NULL;
1617                 ndlp->rport = NULL;
1618         }
1619 }
1620
1621 static int
1622 lpfc_matchdid(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, uint32_t did)
1623 {
1624         D_ID mydid;
1625         D_ID ndlpdid;
1626         D_ID matchdid;
1627
1628         if (did == Bcast_DID)
1629                 return 0;
1630
1631         if (ndlp->nlp_DID == 0) {
1632                 return 0;
1633         }
1634
1635         /* First check for Direct match */
1636         if (ndlp->nlp_DID == did)
1637                 return 1;
1638
1639         /* Next check for area/domain identically equals 0 match */
1640         mydid.un.word = phba->fc_myDID;
1641         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1642                 return 0;
1643         }
1644
1645         matchdid.un.word = did;
1646         ndlpdid.un.word = ndlp->nlp_DID;
1647         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1648                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1649                     (mydid.un.b.area == matchdid.un.b.area)) {
1650                         if ((ndlpdid.un.b.domain == 0) &&
1651                             (ndlpdid.un.b.area == 0)) {
1652                                 if (ndlpdid.un.b.id)
1653                                         return 1;
1654                         }
1655                         return 0;
1656                 }
1657
1658                 matchdid.un.word = ndlp->nlp_DID;
1659                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1660                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1661                         if ((matchdid.un.b.domain == 0) &&
1662                             (matchdid.un.b.area == 0)) {
1663                                 if (matchdid.un.b.id)
1664                                         return 1;
1665                         }
1666                 }
1667         }
1668         return 0;
1669 }
1670
1671 /* Search for a nodelist entry */
1672 struct lpfc_nodelist *
1673 lpfc_findnode_did(struct lpfc_hba *phba, uint32_t did)
1674 {
1675         struct lpfc_nodelist *ndlp;
1676         uint32_t data1;
1677
1678         spin_lock_irq(phba->host->host_lock);
1679         list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp) {
1680                 if (lpfc_matchdid(phba, ndlp, did)) {
1681                         data1 = (((uint32_t) ndlp->nlp_state << 24) |
1682                                  ((uint32_t) ndlp->nlp_xri << 16) |
1683                                  ((uint32_t) ndlp->nlp_type << 8) |
1684                                  ((uint32_t) ndlp->nlp_rpi & 0xff));
1685                         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1686                                         "%d:0929 FIND node DID "
1687                                         " Data: x%p x%x x%x x%x\n",
1688                                         phba->brd_no,
1689                                         ndlp, ndlp->nlp_DID,
1690                                         ndlp->nlp_flag, data1);
1691                         spin_unlock_irq(phba->host->host_lock);
1692                         return ndlp;
1693                 }
1694         }
1695         spin_unlock_irq(phba->host->host_lock);
1696
1697         /* FIND node did <did> NOT FOUND */
1698         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1699                         "%d:0932 FIND node did x%x NOT FOUND.\n",
1700                         phba->brd_no, did);
1701         return NULL;
1702 }
1703
1704 struct lpfc_nodelist *
1705 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1706 {
1707         struct lpfc_nodelist *ndlp;
1708
1709         ndlp = lpfc_findnode_did(phba, did);
1710         if (!ndlp) {
1711                 if ((phba->fc_flag & FC_RSCN_MODE) &&
1712                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1713                         return NULL;
1714                 ndlp = (struct lpfc_nodelist *)
1715                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1716                 if (!ndlp)
1717                         return NULL;
1718                 lpfc_nlp_init(phba, ndlp, did);
1719                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_NPR_NODE);
1720                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1721                 return ndlp;
1722         }
1723         if (phba->fc_flag & FC_RSCN_MODE) {
1724                 if (lpfc_rscn_payload_check(phba, did)) {
1725                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1726
1727                         /* Since this node is marked for discovery,
1728                          * delay timeout is not needed.
1729                          */
1730                         if (ndlp->nlp_flag & NLP_DELAY_TMO)
1731                                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1732                 } else
1733                         ndlp = NULL;
1734         } else {
1735                 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
1736                     ndlp->nlp_state == NLP_STE_PLOGI_ISSUE)
1737                         return NULL;
1738                 lpfc_nlp_set_state(phba, ndlp, NLP_STE_NPR_NODE);
1739                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1740         }
1741         return ndlp;
1742 }
1743
1744 /* Build a list of nodes to discover based on the loopmap */
1745 void
1746 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1747 {
1748         int j;
1749         uint32_t alpa, index;
1750
1751         if (phba->hba_state <= LPFC_LINK_DOWN) {
1752                 return;
1753         }
1754         if (phba->fc_topology != TOPOLOGY_LOOP) {
1755                 return;
1756         }
1757
1758         /* Check for loop map present or not */
1759         if (phba->alpa_map[0]) {
1760                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1761                         alpa = phba->alpa_map[j];
1762
1763                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1764                                 continue;
1765                         }
1766                         lpfc_setup_disc_node(phba, alpa);
1767                 }
1768         } else {
1769                 /* No alpamap, so try all alpa's */
1770                 for (j = 0; j < FC_MAXLOOP; j++) {
1771                         /* If cfg_scan_down is set, start from highest
1772                          * ALPA (0xef) to lowest (0x1).
1773                          */
1774                         if (phba->cfg_scan_down)
1775                                 index = j;
1776                         else
1777                                 index = FC_MAXLOOP - j - 1;
1778                         alpa = lpfcAlpaArray[index];
1779                         if ((phba->fc_myDID & 0xff) == alpa) {
1780                                 continue;
1781                         }
1782
1783                         lpfc_setup_disc_node(phba, alpa);
1784                 }
1785         }
1786         return;
1787 }
1788
1789 /* Start Link up / RSCN discovery on NPR list */
1790 void
1791 lpfc_disc_start(struct lpfc_hba * phba)
1792 {
1793         struct lpfc_sli *psli;
1794         LPFC_MBOXQ_t *mbox;
1795         struct lpfc_nodelist *ndlp, *next_ndlp;
1796         uint32_t num_sent;
1797         uint32_t clear_la_pending;
1798         int did_changed;
1799         int rc;
1800
1801         psli = &phba->sli;
1802
1803         if (phba->hba_state <= LPFC_LINK_DOWN) {
1804                 return;
1805         }
1806         if (phba->hba_state == LPFC_CLEAR_LA)
1807                 clear_la_pending = 1;
1808         else
1809                 clear_la_pending = 0;
1810
1811         if (phba->hba_state < LPFC_HBA_READY) {
1812                 phba->hba_state = LPFC_DISC_AUTH;
1813         }
1814         lpfc_set_disctmo(phba);
1815
1816         if (phba->fc_prevDID == phba->fc_myDID) {
1817                 did_changed = 0;
1818         } else {
1819                 did_changed = 1;
1820         }
1821         phba->fc_prevDID = phba->fc_myDID;
1822         phba->num_disc_nodes = 0;
1823
1824         /* Start Discovery state <hba_state> */
1825         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1826                         "%d:0202 Start Discovery hba state x%x "
1827                         "Data: x%x x%x x%x\n",
1828                         phba->brd_no, phba->hba_state, phba->fc_flag,
1829                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1830
1831         /* If our did changed, we MUST do PLOGI */
1832         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes, nlp_listp) {
1833                 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
1834                     (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
1835                     did_changed) {
1836                         spin_lock_irq(phba->host->host_lock);
1837                         ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1838                         spin_unlock_irq(phba->host->host_lock);
1839                 }
1840         }
1841
1842         /* First do ADISCs - if any */
1843         num_sent = lpfc_els_disc_adisc(phba);
1844
1845         if (num_sent)
1846                 return;
1847
1848         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1849                 /* If we get here, there is nothing to ADISC */
1850                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1851                         phba->hba_state = LPFC_CLEAR_LA;
1852                         lpfc_clear_la(phba, mbox);
1853                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1854                         rc = lpfc_sli_issue_mbox(phba, mbox,
1855                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1856                         if (rc == MBX_NOT_FINISHED) {
1857                                 mempool_free( mbox, phba->mbox_mem_pool);
1858                                 lpfc_disc_flush_list(phba);
1859                                 psli->ring[(psli->extra_ring)].flag &=
1860                                         ~LPFC_STOP_IOCB_EVENT;
1861                                 psli->ring[(psli->fcp_ring)].flag &=
1862                                         ~LPFC_STOP_IOCB_EVENT;
1863                                 psli->ring[(psli->next_ring)].flag &=
1864                                         ~LPFC_STOP_IOCB_EVENT;
1865                                 phba->hba_state = LPFC_HBA_READY;
1866                         }
1867                 }
1868         } else {
1869                 /* Next do PLOGIs - if any */
1870                 num_sent = lpfc_els_disc_plogi(phba);
1871
1872                 if (num_sent)
1873                         return;
1874
1875                 if (phba->fc_flag & FC_RSCN_MODE) {
1876                         /* Check to see if more RSCNs came in while we
1877                          * were processing this one.
1878                          */
1879                         if ((phba->fc_rscn_id_cnt == 0) &&
1880                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1881                                 spin_lock_irq(phba->host->host_lock);
1882                                 phba->fc_flag &= ~FC_RSCN_MODE;
1883                                 spin_unlock_irq(phba->host->host_lock);
1884                         } else
1885                                 lpfc_els_handle_rscn(phba);
1886                 }
1887         }
1888         return;
1889 }
1890
1891 /*
1892  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
1893  *  ring the match the sppecified nodelist.
1894  */
1895 static void
1896 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1897 {
1898         LIST_HEAD(completions);
1899         struct lpfc_sli *psli;
1900         IOCB_t     *icmd;
1901         struct lpfc_iocbq    *iocb, *next_iocb;
1902         struct lpfc_sli_ring *pring;
1903
1904         psli = &phba->sli;
1905         pring = &psli->ring[LPFC_ELS_RING];
1906
1907         /* Error matching iocb on txq or txcmplq
1908          * First check the txq.
1909          */
1910         spin_lock_irq(phba->host->host_lock);
1911         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
1912                 if (iocb->context1 != ndlp) {
1913                         continue;
1914                 }
1915                 icmd = &iocb->iocb;
1916                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
1917                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
1918
1919                         list_move_tail(&iocb->list, &completions);
1920                         pring->txq_cnt--;
1921                 }
1922         }
1923
1924         /* Next check the txcmplq */
1925         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1926                 if (iocb->context1 != ndlp) {
1927                         continue;
1928                 }
1929                 icmd = &iocb->iocb;
1930                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
1931                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
1932                         lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1933                 }
1934         }
1935         spin_unlock_irq(phba->host->host_lock);
1936
1937         while (!list_empty(&completions)) {
1938                 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1939                 list_del(&iocb->list);
1940
1941                 if (iocb->iocb_cmpl) {
1942                         icmd = &iocb->iocb;
1943                         icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1944                         icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1945                         (iocb->iocb_cmpl) (phba, iocb, iocb);
1946                 } else
1947                         lpfc_sli_release_iocbq(phba, iocb);
1948         }
1949
1950         return;
1951 }
1952
1953 void
1954 lpfc_disc_flush_list(struct lpfc_hba * phba)
1955 {
1956         struct lpfc_nodelist *ndlp, *next_ndlp;
1957
1958         if (phba->fc_plogi_cnt || phba->fc_adisc_cnt) {
1959                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes,
1960                                          nlp_listp) {
1961                         if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
1962                             ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
1963                                 lpfc_free_tx(phba, ndlp);
1964                                 lpfc_nlp_put(ndlp);
1965                         }
1966                 }
1967         }
1968 }
1969
1970 /*****************************************************************************/
1971 /*
1972  * NAME:     lpfc_disc_timeout
1973  *
1974  * FUNCTION: Fibre Channel driver discovery timeout routine.
1975  *
1976  * EXECUTION ENVIRONMENT: interrupt only
1977  *
1978  * CALLED FROM:
1979  *      Timer function
1980  *
1981  * RETURNS:
1982  *      none
1983  */
1984 /*****************************************************************************/
1985 void
1986 lpfc_disc_timeout(unsigned long ptr)
1987 {
1988         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
1989         unsigned long flags = 0;
1990
1991         if (unlikely(!phba))
1992                 return;
1993
1994         spin_lock_irqsave(phba->host->host_lock, flags);
1995         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
1996                 phba->work_hba_events |= WORKER_DISC_TMO;
1997                 if (phba->work_wait)
1998                         wake_up(phba->work_wait);
1999         }
2000         spin_unlock_irqrestore(phba->host->host_lock, flags);
2001         return;
2002 }
2003
2004 static void
2005 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2006 {
2007         struct lpfc_sli *psli;
2008         struct lpfc_nodelist *ndlp, *next_ndlp;
2009         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2010         int rc, clrlaerr = 0;
2011
2012         if (unlikely(!phba))
2013                 return;
2014
2015         if (!(phba->fc_flag & FC_DISC_TMO))
2016                 return;
2017
2018         psli = &phba->sli;
2019
2020         spin_lock_irq(phba->host->host_lock);
2021         phba->fc_flag &= ~FC_DISC_TMO;
2022         spin_unlock_irq(phba->host->host_lock);
2023
2024         switch (phba->hba_state) {
2025
2026         case LPFC_LOCAL_CFG_LINK:
2027         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2028                 /* FAN timeout */
2029                 lpfc_printf_log(phba,
2030                                  KERN_WARNING,
2031                                  LOG_DISCOVERY,
2032                                  "%d:0221 FAN timeout\n",
2033                                  phba->brd_no);
2034
2035                 /* Start discovery by sending FLOGI, clean up old rpis */
2036                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes,
2037                                          nlp_listp) {
2038                         if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2039                                 continue;
2040                         if (ndlp->nlp_type & NLP_FABRIC) {
2041                                 /* Clean up the ndlp on Fabric connections */
2042                                 lpfc_drop_node(phba, ndlp);
2043                         } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2044                                 /* Fail outstanding IO now since device
2045                                  * is marked for PLOGI.
2046                                  */
2047                                 lpfc_unreg_rpi(phba, ndlp);
2048                         }
2049                 }
2050                 phba->hba_state = LPFC_FLOGI;
2051                 lpfc_set_disctmo(phba);
2052                 lpfc_initial_flogi(phba);
2053                 break;
2054
2055         case LPFC_FLOGI:
2056         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2057                 /* Initial FLOGI timeout */
2058                 lpfc_printf_log(phba,
2059                                  KERN_ERR,
2060                                  LOG_DISCOVERY,
2061                                  "%d:0222 Initial FLOGI timeout\n",
2062                                  phba->brd_no);
2063
2064                 /* Assume no Fabric and go on with discovery.
2065                  * Check for outstanding ELS FLOGI to abort.
2066                  */
2067
2068                 /* FLOGI failed, so just use loop map to make discovery list */
2069                 lpfc_disc_list_loopmap(phba);
2070
2071                 /* Start discovery */
2072                 lpfc_disc_start(phba);
2073                 break;
2074
2075         case LPFC_FABRIC_CFG_LINK:
2076         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2077            NameServer login */
2078                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2079                                 "%d:0223 Timeout while waiting for NameServer "
2080                                 "login\n", phba->brd_no);
2081
2082                 /* Next look for NameServer ndlp */
2083                 ndlp = lpfc_findnode_did(phba, NameServer_DID);
2084                 if (ndlp)
2085                         lpfc_nlp_put(ndlp);
2086                 /* Start discovery */
2087                 lpfc_disc_start(phba);
2088                 break;
2089
2090         case LPFC_NS_QRY:
2091         /* Check for wait for NameServer Rsp timeout */
2092                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2093                                 "%d:0224 NameServer Query timeout "
2094                                 "Data: x%x x%x\n",
2095                                 phba->brd_no,
2096                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2097
2098                 ndlp = lpfc_findnode_did(phba, NameServer_DID);
2099                 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
2100                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2101                                 /* Try it one more time */
2102                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2103                                 if (rc == 0)
2104                                         break;
2105                         }
2106                         phba->fc_ns_retry = 0;
2107                 }
2108
2109                 /* Nothing to authenticate, so CLEAR_LA right now */
2110                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2111                 if (!clearlambox) {
2112                         clrlaerr = 1;
2113                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2114                                         "%d:0226 Device Discovery "
2115                                         "completion error\n",
2116                                         phba->brd_no);
2117                         phba->hba_state = LPFC_HBA_ERROR;
2118                         break;
2119                 }
2120
2121                 phba->hba_state = LPFC_CLEAR_LA;
2122                 lpfc_clear_la(phba, clearlambox);
2123                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2124                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2125                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2126                 if (rc == MBX_NOT_FINISHED) {
2127                         mempool_free(clearlambox, phba->mbox_mem_pool);
2128                         clrlaerr = 1;
2129                         break;
2130                 }
2131
2132                 /* Setup and issue mailbox INITIALIZE LINK command */
2133                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2134                 if (!initlinkmbox) {
2135                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2136                                         "%d:0206 Device Discovery "
2137                                         "completion error\n",
2138                                         phba->brd_no);
2139                         phba->hba_state = LPFC_HBA_ERROR;
2140                         break;
2141                 }
2142
2143                 lpfc_linkdown(phba);
2144                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2145                                phba->cfg_link_speed);
2146                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2147                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2148                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2149                 lpfc_set_loopback_flag(phba);
2150                 if (rc == MBX_NOT_FINISHED)
2151                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2152
2153                 break;
2154
2155         case LPFC_DISC_AUTH:
2156         /* Node Authentication timeout */
2157                 lpfc_printf_log(phba,
2158                                  KERN_ERR,
2159                                  LOG_DISCOVERY,
2160                                  "%d:0227 Node Authentication timeout\n",
2161                                  phba->brd_no);
2162                 lpfc_disc_flush_list(phba);
2163                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2164                 if (!clearlambox) {
2165                         clrlaerr = 1;
2166                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2167                                         "%d:0207 Device Discovery "
2168                                         "completion error\n",
2169                                         phba->brd_no);
2170                         phba->hba_state = LPFC_HBA_ERROR;
2171                         break;
2172                 }
2173                 phba->hba_state = LPFC_CLEAR_LA;
2174                 lpfc_clear_la(phba, clearlambox);
2175                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2176                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2177                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2178                 if (rc == MBX_NOT_FINISHED) {
2179                         mempool_free(clearlambox, phba->mbox_mem_pool);
2180                         clrlaerr = 1;
2181                 }
2182                 break;
2183
2184         case LPFC_CLEAR_LA:
2185         /* CLEAR LA timeout */
2186                 lpfc_printf_log(phba,
2187                                  KERN_ERR,
2188                                  LOG_DISCOVERY,
2189                                  "%d:0228 CLEAR LA timeout\n",
2190                                  phba->brd_no);
2191                 clrlaerr = 1;
2192                 break;
2193
2194         case LPFC_HBA_READY:
2195                 if (phba->fc_flag & FC_RSCN_MODE) {
2196                         lpfc_printf_log(phba,
2197                                         KERN_ERR,
2198                                         LOG_DISCOVERY,
2199                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2200                                         phba->brd_no,
2201                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2202
2203                         /* Cleanup any outstanding ELS commands */
2204                         lpfc_els_flush_cmd(phba);
2205
2206                         lpfc_els_flush_rscn(phba);
2207                         lpfc_disc_flush_list(phba);
2208                 }
2209                 break;
2210         }
2211
2212         if (clrlaerr) {
2213                 lpfc_disc_flush_list(phba);
2214                 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2215                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2216                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2217                 phba->hba_state = LPFC_HBA_READY;
2218         }
2219
2220         return;
2221 }
2222
2223 /*
2224  * This routine handles processing a NameServer REG_LOGIN mailbox
2225  * command upon completion. It is setup in the LPFC_MBOXQ
2226  * as the completion routine when the command is
2227  * handed off to the SLI layer.
2228  */
2229 void
2230 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2231 {
2232         struct lpfc_sli *psli;
2233         MAILBOX_t *mb;
2234         struct lpfc_dmabuf *mp;
2235         struct lpfc_nodelist *ndlp;
2236
2237         psli = &phba->sli;
2238         mb = &pmb->mb;
2239
2240         ndlp = (struct lpfc_nodelist *) pmb->context2;
2241         mp = (struct lpfc_dmabuf *) (pmb->context1);
2242
2243         pmb->context1 = NULL;
2244
2245         ndlp->nlp_rpi = mb->un.varWords[0];
2246         ndlp->nlp_type |= NLP_FABRIC;
2247         lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
2248
2249         /* Start issuing Fabric-Device Management Interface (FDMI)
2250          * command to 0xfffffa (FDMI well known port)
2251          */
2252         if (phba->cfg_fdmi_on == 1) {
2253                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2254         } else {
2255                 /*
2256                  * Delay issuing FDMI command if fdmi-on=2
2257                  * (supporting RPA/hostnmae)
2258                  */
2259                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2260         }
2261
2262                                 /* Mailbox took a reference to the node */
2263         lpfc_nlp_put(ndlp);
2264         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2265         kfree(mp);
2266         mempool_free(pmb, phba->mbox_mem_pool);
2267
2268         return;
2269 }
2270
2271 static int
2272 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2273 {
2274         uint16_t *rpi = param;
2275
2276         return ndlp->nlp_rpi == *rpi;
2277 }
2278
2279 static int
2280 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2281 {
2282         return memcmp(&ndlp->nlp_portname, param,
2283                       sizeof(ndlp->nlp_portname)) == 0;
2284 }
2285
2286 /*
2287  * Search node lists for a remote port matching filter criteria
2288  * Caller needs to hold host_lock before calling this routine.
2289  */
2290 struct lpfc_nodelist *
2291 __lpfc_find_node(struct lpfc_hba *phba, node_filter filter, void *param)
2292 {
2293         struct lpfc_nodelist *ndlp;
2294
2295         list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp) {
2296                 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE &&
2297                     filter(ndlp, param))
2298                         return ndlp;
2299         }
2300         return NULL;
2301 }
2302
2303 /*
2304  * Search node lists for a remote port matching filter criteria
2305  * This routine is used when the caller does NOT have host_lock.
2306  */
2307 struct lpfc_nodelist *
2308 lpfc_find_node(struct lpfc_hba *phba, node_filter filter, void *param)
2309 {
2310         struct lpfc_nodelist *ndlp;
2311
2312         spin_lock_irq(phba->host->host_lock);
2313         ndlp = __lpfc_find_node(phba, filter, param);
2314         spin_unlock_irq(phba->host->host_lock);
2315         return ndlp;
2316 }
2317
2318 /*
2319  * This routine looks up the ndlp lists for the given RPI. If rpi found it
2320  * returns the node list pointer else return NULL.
2321  */
2322 struct lpfc_nodelist *
2323 __lpfc_findnode_rpi(struct lpfc_hba *phba, uint16_t rpi)
2324 {
2325         return __lpfc_find_node(phba, lpfc_filter_by_rpi, &rpi);
2326 }
2327
2328 struct lpfc_nodelist *
2329 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2330 {
2331         struct lpfc_nodelist *ndlp;
2332
2333         spin_lock_irq(phba->host->host_lock);
2334         ndlp = __lpfc_findnode_rpi(phba, rpi);
2335         spin_unlock_irq(phba->host->host_lock);
2336         return ndlp;
2337 }
2338
2339 /*
2340  * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2341  * returns the node list pointer else return NULL.
2342  */
2343 struct lpfc_nodelist *
2344 lpfc_findnode_wwpn(struct lpfc_hba *phba, struct lpfc_name *wwpn)
2345 {
2346         struct lpfc_nodelist *ndlp;
2347
2348         spin_lock_irq(phba->host->host_lock);
2349         ndlp = __lpfc_find_node(phba, lpfc_filter_by_wwpn, wwpn);
2350         spin_unlock_irq(phba->host->host_lock);
2351         return NULL;
2352 }
2353
2354 void
2355 lpfc_nlp_init(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, uint32_t did)
2356 {
2357         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2358         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2359         init_timer(&ndlp->nlp_delayfunc);
2360         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2361         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2362         ndlp->nlp_DID = did;
2363         ndlp->nlp_phba = phba;
2364         ndlp->nlp_sid = NLP_NO_SID;
2365         INIT_LIST_HEAD(&ndlp->nlp_listp);
2366         kref_init(&ndlp->kref);
2367         return;
2368 }
2369
2370 void
2371 lpfc_nlp_release(struct kref *kref)
2372 {
2373         struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2374                                                   kref);
2375         lpfc_nlp_remove(ndlp->nlp_phba, ndlp);
2376         mempool_free(ndlp, ndlp->nlp_phba->nlp_mem_pool);
2377 }
2378
2379 struct lpfc_nodelist *
2380 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2381 {
2382         if (ndlp)
2383                 kref_get(&ndlp->kref);
2384         return ndlp;
2385 }
2386
2387 int
2388 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
2389 {
2390         return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
2391 }