drivers/scsi/lpfc/lpfc_hbadisc.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/pci.h>
  24 #include <linux/kthread.h>
  25 #include <linux/interrupt.h>
  26
  27 #include <scsi/scsi.h>
  28 #include <scsi/scsi_device.h>
  29 #include <scsi/scsi_host.h>
  30 #include <scsi/scsi_transport_fc.h>
  31
  32 #include "lpfc_hw.h"
  33 #include "lpfc_disc.h"
  34 #include "lpfc_sli.h"
  35 #include "lpfc_scsi.h"
  36 #include "lpfc.h"
  37 #include "lpfc_logmsg.h"
  38 #include "lpfc_crtn.h"
  39
  40 /* AlpaArray for assignment of scsid for scan-down and bind_method */
  41 static uint8_t lpfcAlpaArray[] = {
  42         0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
  43         0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
  44         0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
  45         0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
  46         0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
  47         0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
  48         0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
  49         0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
  50         0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
  51         0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
  52         0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
  53         0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
  54         0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
  55 };
  56
  57 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
  58
  59 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         name = (uint8_t *)&ndlp->nlp_portname;
 113         phba = ndlp->nlp_phba;
 114
 115         spin_lock_irq(phba->host->host_lock);
 116
 117         if (ndlp->nlp_sid != NLP_NO_SID) {
 118                 warn_on = 1;
 119                 /* flush the target */
 120                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
 121                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
 122         }
 123         if (phba->fc_flag & FC_UNLOADING)
 124                 warn_on = 0;
 125
 126         spin_unlock_irq(phba->host->host_lock);
 127
 128         if (warn_on) {
 129                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 130                                 "%d:0203 Devloss timeout on "
 131                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 132                                 "NPort x%x Data: x%x x%x x%x\n",
 133                                 phba->brd_no,
 134                                 *name, *(name+1), *(name+2), *(name+3),
 135                                 *(name+4), *(name+5), *(name+6), *(name+7),
 136                                 ndlp->nlp_DID, ndlp->nlp_flag,
 137                                 ndlp->nlp_state, ndlp->nlp_rpi);
 138         } else {
 139                 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 140                                 "%d:0204 Devloss timeout on "
 141                                 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 142                                 "NPort x%x Data: x%x x%x x%x\n",
 143                                 phba->brd_no,
 144                                 *name, *(name+1), *(name+2), *(name+3),
 145                                 *(name+4), *(name+5), *(name+6), *(name+7),
 146                                 ndlp->nlp_DID, ndlp->nlp_flag,
 147                                 ndlp->nlp_state, ndlp->nlp_rpi);
 148         }
 149
 150         ndlp->rport = NULL;
 151         rdata->pnode = NULL;
 152
 153         if (!(phba->fc_flag & FC_UNLOADING))
 154                 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
 155
 156         return;
 157 }
 158
 159 static void
 160 lpfc_work_list_done(struct lpfc_hba * phba)
 161 {
 162         struct lpfc_work_evt  *evtp = NULL;
 163         struct lpfc_nodelist  *ndlp;
 164         int free_evt;
 165
 166         spin_lock_irq(phba->host->host_lock);
 167         while(!list_empty(&phba->work_list)) {
 168                 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
 169                                  evt_listp);
 170                 spin_unlock_irq(phba->host->host_lock);
 171                 free_evt = 1;
 172                 switch (evtp->evt) {
 173                 case LPFC_EVT_ELS_RETRY:
 174                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 175                         lpfc_els_retry_delay_handler(ndlp);
 176                         free_evt = 0;
 177                         break;
 178                 case LPFC_EVT_ONLINE:
 179                         if (phba->hba_state < LPFC_LINK_DOWN)
 180                                 *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
 181                         else
 182                                 *(int *)(evtp->evt_arg1)  = 0;
 183                         complete((struct completion *)(evtp->evt_arg2));
 184                         break;
 185                 case LPFC_EVT_OFFLINE:
 186                         if (phba->hba_state >= LPFC_LINK_DOWN)
 187                                 lpfc_offline(phba);
 188                         lpfc_sli_brdrestart(phba);
 189                         *(int *)(evtp->evt_arg1) =
 190                                 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
 191                         complete((struct completion *)(evtp->evt_arg2));
 192                         break;
 193                 case LPFC_EVT_WARM_START:
 194                         if (phba->hba_state >= LPFC_LINK_DOWN)
 195                                 lpfc_offline(phba);
 196                         lpfc_reset_barrier(phba);
 197                         lpfc_sli_brdreset(phba);
 198                         lpfc_hba_down_post(phba);
 199                         *(int *)(evtp->evt_arg1) =
 200                                 lpfc_sli_brdready(phba, HS_MBRDY);
 201                         complete((struct completion *)(evtp->evt_arg2));
 202                         break;
 203                 case LPFC_EVT_KILL:
 204                         if (phba->hba_state >= LPFC_LINK_DOWN)
 205                                 lpfc_offline(phba);
 206                         *(int *)(evtp->evt_arg1)
 207                                 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
 208                         complete((struct completion *)(evtp->evt_arg2));
 209                         break;
 210                 }
 211                 if (free_evt)
 212                         kfree(evtp);
 213                 spin_lock_irq(phba->host->host_lock);
 214         }
 215         spin_unlock_irq(phba->host->host_lock);
 216
 217 }
 218
 219 static void
 220 lpfc_work_done(struct lpfc_hba * phba)
 221 {
 222         struct lpfc_sli_ring *pring;
 223         int i;
 224         uint32_t ha_copy;
 225         uint32_t control;
 226         uint32_t work_hba_events;
 227
 228         spin_lock_irq(phba->host->host_lock);
 229         ha_copy = phba->work_ha;
 230         phba->work_ha = 0;
 231         work_hba_events=phba->work_hba_events;
 232         spin_unlock_irq(phba->host->host_lock);
 233
 234         if (ha_copy & HA_ERATT)
 235                 lpfc_handle_eratt(phba);
 236
 237         if (ha_copy & HA_MBATT)
 238                 lpfc_sli_handle_mb_event(phba);
 239
 240         if (ha_copy & HA_LATT)
 241                 lpfc_handle_latt(phba);
 242
 243         if (work_hba_events & WORKER_DISC_TMO)
 244                 lpfc_disc_timeout_handler(phba);
 245
 246         if (work_hba_events & WORKER_ELS_TMO)
 247                 lpfc_els_timeout_handler(phba);
 248
 249         if (work_hba_events & WORKER_MBOX_TMO)
 250                 lpfc_mbox_timeout_handler(phba);
 251
 252         if (work_hba_events & WORKER_FDMI_TMO)
 253                 lpfc_fdmi_tmo_handler(phba);
 254
 255         spin_lock_irq(phba->host->host_lock);
 256         phba->work_hba_events &= ~work_hba_events;
 257         spin_unlock_irq(phba->host->host_lock);
 258
 259         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
 260                 pring = &phba->sli.ring[i];
 261                 if ((ha_copy & HA_RXATT)
 262                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
 263                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
 264                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
 265                         } else {
 266                                 lpfc_sli_handle_slow_ring_event(phba, pring,
 267                                                                 (ha_copy &
 268                                                                  HA_RXMASK));
 269                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
 270                         }
 271                         /*
 272                          * Turn on Ring interrupts
 273                          */
 274                         spin_lock_irq(phba->host->host_lock);
 275                         control = readl(phba->HCregaddr);
 276                         control |= (HC_R0INT_ENA << i);
 277                         writel(control, phba->HCregaddr);
 278                         readl(phba->HCregaddr); /* flush */
 279                         spin_unlock_irq(phba->host->host_lock);
 280                 }
 281         }
 282
 283         lpfc_work_list_done (phba);
 284
 285 }
 286
 287 static int
 288 check_work_wait_done(struct lpfc_hba *phba) {
 289
 290         spin_lock_irq(phba->host->host_lock);
 291         if (phba->work_ha ||
 292             phba->work_hba_events ||
 293             (!list_empty(&phba->work_list)) ||
 294             kthread_should_stop()) {
 295                 spin_unlock_irq(phba->host->host_lock);
 296                 return 1;
 297         } else {
 298                 spin_unlock_irq(phba->host->host_lock);
 299                 return 0;
 300         }
 301 }
 302
 303 int
 304 lpfc_do_work(void *p)
 305 {
 306         struct lpfc_hba *phba = p;
 307         int rc;
 308         DECLARE_WAIT_QUEUE_HEAD(work_waitq);
 309
 310         set_user_nice(current, -20);
 311         phba->work_wait = &work_waitq;
 312
 313         while (1) {
 314
 315                 rc = wait_event_interruptible(work_waitq,
 316                                                 check_work_wait_done(phba));
 317                 BUG_ON(rc);
 318
 319                 if (kthread_should_stop())
 320                         break;
 321
 322                 lpfc_work_done(phba);
 323
 324         }
 325         phba->work_wait = NULL;
 326         return 0;
 327 }
 328
 329 /*
 330  * This is only called to handle FC worker events. Since this a rare
 331  * occurance, we allocate a struct lpfc_work_evt structure here instead of
 332  * embedding it in the IOCB.
 333  */
 334 int
 335 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
 336                       uint32_t evt)
 337 {
 338         struct lpfc_work_evt  *evtp;
 339
 340         /*
 341          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
 342          * be queued to worker thread for processing
 343          */
 344         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
 345         if (!evtp)
 346                 return 0;
 347
 348         evtp->evt_arg1  = arg1;
 349         evtp->evt_arg2  = arg2;
 350         evtp->evt       = evt;
 351
 352         spin_lock_irq(phba->host->host_lock);
 353         list_add_tail(&evtp->evt_listp, &phba->work_list);
 354         if (phba->work_wait)
 355                 wake_up(phba->work_wait);
 356         spin_unlock_irq(phba->host->host_lock);
 357
 358         return 1;
 359 }
 360
 361 int
 362 lpfc_linkdown(struct lpfc_hba * phba)
 363 {
 364         struct lpfc_sli       *psli;
 365         struct lpfc_nodelist  *ndlp, *next_ndlp;
 366         struct list_head *listp, *node_list[7];
 367         LPFC_MBOXQ_t     *mb;
 368         int               rc, i;
 369
 370         psli = &phba->sli;
 371         /* sysfs or selective reset may call this routine to clean up */
 372         if (phba->hba_state >= LPFC_LINK_DOWN) {
 373                 if (phba->hba_state == LPFC_LINK_DOWN)
 374                         return 0;
 375
 376                 spin_lock_irq(phba->host->host_lock);
 377                 phba->hba_state = LPFC_LINK_DOWN;
 378                 spin_unlock_irq(phba->host->host_lock);
 379         }
 380
 381         fc_host_post_event(phba->host, fc_get_event_number(),
 382                         FCH_EVT_LINKDOWN, 0);
 383
 384         /* Clean up any firmware default rpi's */
 385         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 386                 lpfc_unreg_did(phba, 0xffffffff, mb);
 387                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 388                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 389                     == MBX_NOT_FINISHED) {
 390                         mempool_free( mb, phba->mbox_mem_pool);
 391                 }
 392         }
 393
 394         /* Cleanup any outstanding RSCN activity */
 395         lpfc_els_flush_rscn(phba);
 396
 397         /* Cleanup any outstanding ELS commands */
 398         lpfc_els_flush_cmd(phba);
 399
 400         /* Issue a LINK DOWN event to all nodes */
 401         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
 402         node_list[1] = &phba->fc_nlpmap_list;
 403         node_list[2] = &phba->fc_nlpunmap_list;
 404         node_list[3] = &phba->fc_prli_list;
 405         node_list[4] = &phba->fc_reglogin_list;
 406         node_list[5] = &phba->fc_adisc_list;
 407         node_list[6] = &phba->fc_plogi_list;
 408         for (i = 0; i < 7; i++) {
 409                 listp = node_list[i];
 410                 if (list_empty(listp))
 411                         continue;
 412
 413                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 414
 415                         rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 416                                              NLP_EVT_DEVICE_RECOVERY);
 417
 418                 }
 419         }
 420
 421         /* free any ndlp's on unused list */
 422         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 423                                 nlp_listp) {
 424                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 425         }
 426
 427         /* Setup myDID for link up if we are in pt2pt mode */
 428         if (phba->fc_flag & FC_PT2PT) {
 429                 phba->fc_myDID = 0;
 430                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 431                         lpfc_config_link(phba, mb);
 432                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
 433                         if (lpfc_sli_issue_mbox
 434                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
 435                             == MBX_NOT_FINISHED) {
 436                                 mempool_free( mb, phba->mbox_mem_pool);
 437                         }
 438                 }
 439                 spin_lock_irq(phba->host->host_lock);
 440                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
 441                 spin_unlock_irq(phba->host->host_lock);
 442         }
 443         spin_lock_irq(phba->host->host_lock);
 444         phba->fc_flag &= ~FC_LBIT;
 445         spin_unlock_irq(phba->host->host_lock);
 446
 447         /* Turn off discovery timer if its running */
 448         lpfc_can_disctmo(phba);
 449
 450         /* Must process IOCBs on all rings to handle ABORTed I/Os */
 451         return 0;
 452 }
 453
 454 static int
 455 lpfc_linkup(struct lpfc_hba * phba)
 456 {
 457         struct lpfc_nodelist *ndlp, *next_ndlp;
 458         struct list_head *listp, *node_list[7];
 459         int i;
 460
 461         fc_host_post_event(phba->host, fc_get_event_number(),
 462                         FCH_EVT_LINKUP, 0);
 463
 464         spin_lock_irq(phba->host->host_lock);
 465         phba->hba_state = LPFC_LINK_UP;
 466         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
 467                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
 468         phba->fc_flag |= FC_NDISC_ACTIVE;
 469         phba->fc_ns_retry = 0;
 470         spin_unlock_irq(phba->host->host_lock);
 471
 472
 473         node_list[0] = &phba->fc_plogi_list;
 474         node_list[1] = &phba->fc_adisc_list;
 475         node_list[2] = &phba->fc_reglogin_list;
 476         node_list[3] = &phba->fc_prli_list;
 477         node_list[4] = &phba->fc_nlpunmap_list;
 478         node_list[5] = &phba->fc_nlpmap_list;
 479         node_list[6] = &phba->fc_npr_list;
 480         for (i = 0; i < 7; i++) {
 481                 listp = node_list[i];
 482                 if (list_empty(listp))
 483                         continue;
 484
 485                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
 486                         if (phba->fc_flag & FC_LBIT) {
 487                                 if (ndlp->nlp_type & NLP_FABRIC) {
 488                                         /* On Linkup its safe to clean up the
 489                                          * ndlp from Fabric connections.
 490                                          */
 491                                         lpfc_nlp_list(phba, ndlp,
 492                                                         NLP_UNUSED_LIST);
 493                                 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
 494                                         /* Fail outstanding IO now since device
 495                                          * is marked for PLOGI.
 496                                          */
 497                                         lpfc_unreg_rpi(phba, ndlp);
 498                                 }
 499                         }
 500                 }
 501         }
 502
 503         /* free any ndlp's on unused list */
 504         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
 505                                 nlp_listp) {
 506                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
 507         }
 508
 509         return 0;
 510 }
 511
 512 /*
 513  * This routine handles processing a CLEAR_LA mailbox
 514  * command upon completion. It is setup in the LPFC_MBOXQ
 515  * as the completion routine when the command is
 516  * handed off to the SLI layer.
 517  */
 518 void
 519 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 520 {
 521         struct lpfc_sli *psli;
 522         MAILBOX_t *mb;
 523         uint32_t control;
 524
 525         psli = &phba->sli;
 526         mb = &pmb->mb;
 527         /* Since we don't do discovery right now, turn these off here */
 528         psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 529         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 530         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
 531
 532         /* Check for error */
 533         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
 534                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
 535                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 536                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
 537                                 "state x%x\n",
 538                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 539
 540                 phba->hba_state = LPFC_HBA_ERROR;
 541                 goto out;
 542         }
 543
 544         if (phba->fc_flag & FC_ABORT_DISCOVERY)
 545                 goto out;
 546
 547         phba->num_disc_nodes = 0;
 548         /* go thru NPR list and issue ELS PLOGIs */
 549         if (phba->fc_npr_cnt) {
 550                 lpfc_els_disc_plogi(phba);
 551         }
 552
 553         if (!phba->num_disc_nodes) {
 554                 spin_lock_irq(phba->host->host_lock);
 555                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
 556                 spin_unlock_irq(phba->host->host_lock);
 557         }
 558
 559         phba->hba_state = LPFC_HBA_READY;
 560
 561 out:
 562         /* Device Discovery completes */
 563         lpfc_printf_log(phba,
 564                          KERN_INFO,
 565                          LOG_DISCOVERY,
 566                          "%d:0225 Device Discovery completes\n",
 567                          phba->brd_no);
 568
 569         mempool_free( pmb, phba->mbox_mem_pool);
 570
 571         spin_lock_irq(phba->host->host_lock);
 572         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
 573         if (phba->fc_flag & FC_ESTABLISH_LINK) {
 574                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
 575         }
 576         spin_unlock_irq(phba->host->host_lock);
 577
 578         del_timer_sync(&phba->fc_estabtmo);
 579
 580         lpfc_can_disctmo(phba);
 581
 582         /* turn on Link Attention interrupts */
 583         spin_lock_irq(phba->host->host_lock);
 584         psli->sli_flag |= LPFC_PROCESS_LA;
 585         control = readl(phba->HCregaddr);
 586         control |= HC_LAINT_ENA;
 587         writel(control, phba->HCregaddr);
 588         readl(phba->HCregaddr); /* flush */
 589         spin_unlock_irq(phba->host->host_lock);
 590
 591         return;
 592 }
 593
 594 static void
 595 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 596 {
 597         struct lpfc_sli *psli = &phba->sli;
 598         int rc;
 599
 600         if (pmb->mb.mbxStatus)
 601                 goto out;
 602
 603         mempool_free(pmb, phba->mbox_mem_pool);
 604
 605         if (phba->fc_topology == TOPOLOGY_LOOP &&
 606                 phba->fc_flag & FC_PUBLIC_LOOP &&
 607                  !(phba->fc_flag & FC_LBIT)) {
 608                         /* Need to wait for FAN - use discovery timer
 609                          * for timeout.  hba_state is identically
 610                          * LPFC_LOCAL_CFG_LINK while waiting for FAN
 611                          */
 612                         lpfc_set_disctmo(phba);
 613                         return;
 614                 }
 615
 616         /* Start discovery by sending a FLOGI. hba_state is identically
 617          * LPFC_FLOGI while waiting for FLOGI cmpl
 618          */
 619         phba->hba_state = LPFC_FLOGI;
 620         lpfc_set_disctmo(phba);
 621         lpfc_initial_flogi(phba);
 622         return;
 623
 624 out:
 625         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 626                         "%d:0306 CONFIG_LINK mbxStatus error x%x "
 627                         "HBA state x%x\n",
 628                         phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
 629
 630         lpfc_linkdown(phba);
 631
 632         phba->hba_state = LPFC_HBA_ERROR;
 633
 634         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
 635                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
 636                         phba->brd_no, phba->hba_state);
 637
 638         lpfc_clear_la(phba, pmb);
 639         pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 640         rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 641         if (rc == MBX_NOT_FINISHED) {
 642                 mempool_free(pmb, phba->mbox_mem_pool);
 643                 lpfc_disc_flush_list(phba);
 644                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 645                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 646                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
 647                 phba->hba_state = LPFC_HBA_READY;
 648         }
 649         return;
 650 }
 651
 652 static void
 653 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 654 {
 655         struct lpfc_sli *psli = &phba->sli;
 656         MAILBOX_t *mb = &pmb->mb;
 657         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
 658
 659
 660         /* Check for error */
 661         if (mb->mbxStatus) {
 662                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
 663                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 664                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
 665                                 "hba state x%x>\n",
 666                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
 667
 668                 lpfc_linkdown(phba);
 669                 phba->hba_state = LPFC_HBA_ERROR;
 670                 goto out;
 671         }
 672
 673         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 674                sizeof (struct serv_parm));
 675         if (phba->cfg_soft_wwpn)
 676                 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 677         memcpy((uint8_t *) & phba->fc_nodename,
 678                (uint8_t *) & phba->fc_sparam.nodeName,
 679                sizeof (struct lpfc_name));
 680         memcpy((uint8_t *) & phba->fc_portname,
 681                (uint8_t *) & phba->fc_sparam.portName,
 682                sizeof (struct lpfc_name));
 683         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 684         kfree(mp);
 685         mempool_free( pmb, phba->mbox_mem_pool);
 686         return;
 687
 688 out:
 689         pmb->context1 = NULL;
 690         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 691         kfree(mp);
 692         if (phba->hba_state != LPFC_CLEAR_LA) {
 693                 lpfc_clear_la(phba, pmb);
 694                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
 695                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
 696                     == MBX_NOT_FINISHED) {
 697                         mempool_free( pmb, phba->mbox_mem_pool);
 698                         lpfc_disc_flush_list(phba);
 699                         psli->ring[(psli->ip_ring)].flag &=
 700                             ~LPFC_STOP_IOCB_EVENT;
 701                         psli->ring[(psli->fcp_ring)].flag &=
 702                             ~LPFC_STOP_IOCB_EVENT;
 703                         psli->ring[(psli->next_ring)].flag &=
 704                             ~LPFC_STOP_IOCB_EVENT;
 705                         phba->hba_state = LPFC_HBA_READY;
 706                 }
 707         } else {
 708                 mempool_free( pmb, phba->mbox_mem_pool);
 709         }
 710         return;
 711 }
 712
 713 static void
 714 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
 715 {
 716         int i;
 717         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
 718         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 719         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 720
 721         spin_lock_irq(phba->host->host_lock);
 722         switch (la->UlnkSpeed) {
 723                 case LA_1GHZ_LINK:
 724                         phba->fc_linkspeed = LA_1GHZ_LINK;
 725                         break;
 726                 case LA_2GHZ_LINK:
 727                         phba->fc_linkspeed = LA_2GHZ_LINK;
 728                         break;
 729                 case LA_4GHZ_LINK:
 730                         phba->fc_linkspeed = LA_4GHZ_LINK;
 731                         break;
 732                 default:
 733                         phba->fc_linkspeed = LA_UNKNW_LINK;
 734                         break;
 735         }
 736
 737         phba->fc_topology = la->topology;
 738
 739         if (phba->fc_topology == TOPOLOGY_LOOP) {
 740         /* Get Loop Map information */
 741
 742                 if (la->il)
 743                         phba->fc_flag |= FC_LBIT;
 744
 745                 phba->fc_myDID = la->granted_AL_PA;
 746                 i = la->un.lilpBde64.tus.f.bdeSize;
 747
 748                 if (i == 0) {
 749                         phba->alpa_map[0] = 0;
 750                 } else {
 751                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
 752                                 int numalpa, j, k;
 753                                 union {
 754                                         uint8_t pamap[16];
 755                                         struct {
 756                                                 uint32_t wd1;
 757                                                 uint32_t wd2;
 758                                                 uint32_t wd3;
 759                                                 uint32_t wd4;
 760                                         } pa;
 761                                 } un;
 762                                 numalpa = phba->alpa_map[0];
 763                                 j = 0;
 764                                 while (j < numalpa) {
 765                                         memset(un.pamap, 0, 16);
 766                                         for (k = 1; j < numalpa; k++) {
 767                                                 un.pamap[k - 1] =
 768                                                         phba->alpa_map[j + 1];
 769                                                 j++;
 770                                                 if (k == 16)
 771                                                         break;
 772                                         }
 773                                         /* Link Up Event ALPA map */
 774                                         lpfc_printf_log(phba,
 775                                                 KERN_WARNING,
 776                                                 LOG_LINK_EVENT,
 777                                                 "%d:1304 Link Up Event "
 778                                                 "ALPA map Data: x%x "
 779                                                 "x%x x%x x%x\n",
 780                                                 phba->brd_no,
 781                                                 un.pa.wd1, un.pa.wd2,
 782                                                 un.pa.wd3, un.pa.wd4);
 783                                 }
 784                         }
 785                 }
 786         } else {
 787                 phba->fc_myDID = phba->fc_pref_DID;
 788                 phba->fc_flag |= FC_LBIT;
 789         }
 790         spin_unlock_irq(phba->host->host_lock);
 791
 792         lpfc_linkup(phba);
 793         if (sparam_mbox) {
 794                 lpfc_read_sparam(phba, sparam_mbox);
 795                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
 796                 lpfc_sli_issue_mbox(phba, sparam_mbox,
 797                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 798         }
 799
 800         if (cfglink_mbox) {
 801                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
 802                 lpfc_config_link(phba, cfglink_mbox);
 803                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
 804                 lpfc_sli_issue_mbox(phba, cfglink_mbox,
 805                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
 806         }
 807 }
 808
 809 static void
 810 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
 811         uint32_t control;
 812         struct lpfc_sli *psli = &phba->sli;
 813
 814         lpfc_linkdown(phba);
 815
 816         /* turn on Link Attention interrupts - no CLEAR_LA needed */
 817         spin_lock_irq(phba->host->host_lock);
 818         psli->sli_flag |= LPFC_PROCESS_LA;
 819         control = readl(phba->HCregaddr);
 820         control |= HC_LAINT_ENA;
 821         writel(control, phba->HCregaddr);
 822         readl(phba->HCregaddr); /* flush */
 823         spin_unlock_irq(phba->host->host_lock);
 824 }
 825
 826 /*
 827  * This routine handles processing a READ_LA mailbox
 828  * command upon completion. It is setup in the LPFC_MBOXQ
 829  * as the completion routine when the command is
 830  * handed off to the SLI layer.
 831  */
 832 void
 833 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 834 {
 835         READ_LA_VAR *la;
 836         MAILBOX_t *mb = &pmb->mb;
 837         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 838
 839         /* Check for error */
 840         if (mb->mbxStatus) {
 841                 lpfc_printf_log(phba,
 842                                 KERN_INFO,
 843                                 LOG_LINK_EVENT,
 844                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
 845                                 phba->brd_no,
 846                                 mb->mbxStatus, phba->hba_state);
 847                 lpfc_mbx_issue_link_down(phba);
 848                 phba->hba_state = LPFC_HBA_ERROR;
 849                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
 850         }
 851
 852         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
 853
 854         memcpy(&phba->alpa_map[0], mp->virt, 128);
 855
 856         spin_lock_irq(phba->host->host_lock);
 857         if (la->pb)
 858                 phba->fc_flag |= FC_BYPASSED_MODE;
 859         else
 860                 phba->fc_flag &= ~FC_BYPASSED_MODE;
 861         spin_unlock_irq(phba->host->host_lock);
 862
 863         if (((phba->fc_eventTag + 1) < la->eventTag) ||
 864              (phba->fc_eventTag == la->eventTag)) {
 865                 phba->fc_stat.LinkMultiEvent++;
 866                 if (la->attType == AT_LINK_UP) {
 867                         if (phba->fc_eventTag != 0)
 868                                 lpfc_linkdown(phba);
 869                 }
 870         }
 871
 872         phba->fc_eventTag = la->eventTag;
 873
 874         if (la->attType == AT_LINK_UP) {
 875                 phba->fc_stat.LinkUp++;
 876                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 877                                 "%d:1303 Link Up Event x%x received "
 878                                 "Data: x%x x%x x%x x%x\n",
 879                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 880                                 la->granted_AL_PA, la->UlnkSpeed,
 881                                 phba->alpa_map[0]);
 882                 lpfc_mbx_process_link_up(phba, la);
 883         } else {
 884                 phba->fc_stat.LinkDown++;
 885                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 886                                 "%d:1305 Link Down Event x%x received "
 887                                 "Data: x%x x%x x%x\n",
 888                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
 889                                 phba->hba_state, phba->fc_flag);
 890                 lpfc_mbx_issue_link_down(phba);
 891         }
 892
 893 lpfc_mbx_cmpl_read_la_free_mbuf:
 894         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 895         kfree(mp);
 896         mempool_free(pmb, phba->mbox_mem_pool);
 897         return;
 898 }
 899
 900 /*
 901  * This routine handles processing a REG_LOGIN mailbox
 902  * command upon completion. It is setup in the LPFC_MBOXQ
 903  * as the completion routine when the command is
 904  * handed off to the SLI layer.
 905  */
 906 void
 907 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 908 {
 909         struct lpfc_sli *psli;
 910         MAILBOX_t *mb;
 911         struct lpfc_dmabuf *mp;
 912         struct lpfc_nodelist *ndlp;
 913
 914         psli = &phba->sli;
 915         mb = &pmb->mb;
 916
 917         ndlp = (struct lpfc_nodelist *) pmb->context2;
 918         mp = (struct lpfc_dmabuf *) (pmb->context1);
 919
 920         pmb->context1 = NULL;
 921
 922         /* Good status, call state machine */
 923         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 924         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 925         kfree(mp);
 926         mempool_free( pmb, phba->mbox_mem_pool);
 927
 928         return;
 929 }
 930
 931 /*
 932  * This routine handles processing a Fabric REG_LOGIN mailbox
 933  * command upon completion. It is setup in the LPFC_MBOXQ
 934  * as the completion routine when the command is
 935  * handed off to the SLI layer.
 936  */
 937 void
 938 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 939 {
 940         struct lpfc_sli *psli;
 941         MAILBOX_t *mb;
 942         struct lpfc_dmabuf *mp;
 943         struct lpfc_nodelist *ndlp;
 944         struct lpfc_nodelist *ndlp_fdmi;
 945
 946
 947         psli = &phba->sli;
 948         mb = &pmb->mb;
 949
 950         ndlp = (struct lpfc_nodelist *) pmb->context2;
 951         mp = (struct lpfc_dmabuf *) (pmb->context1);
 952
 953         if (mb->mbxStatus) {
 954                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 955                 kfree(mp);
 956                 mempool_free( pmb, phba->mbox_mem_pool);
 957                 mempool_free( ndlp, phba->nlp_mem_pool);
 958
 959                 /* FLOGI failed, so just use loop map to make discovery list */
 960                 lpfc_disc_list_loopmap(phba);
 961
 962                 /* Start discovery */
 963                 lpfc_disc_start(phba);
 964                 return;
 965         }
 966
 967         pmb->context1 = NULL;
 968
 969         ndlp->nlp_rpi = mb->un.varWords[0];
 970         ndlp->nlp_type |= NLP_FABRIC;
 971         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
 972         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
 973
 974         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
 975                 /* This NPort has been assigned an NPort_ID by the fabric as a
 976                  * result of the completed fabric login.  Issue a State Change
 977                  * Registration (SCR) ELS request to the fabric controller
 978                  * (SCR_DID) so that this NPort gets RSCN events from the
 979                  * fabric.
 980                  */
 981                 lpfc_issue_els_scr(phba, SCR_DID, 0);
 982
 983                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
 984                 if (!ndlp) {
 985                         /* Allocate a new node instance. If the pool is empty,
 986                          * start the discovery process and skip the Nameserver
 987                          * login process.  This is attempted again later on.
 988                          * Otherwise, issue a Port Login (PLOGI) to NameServer.
 989                          */
 990                         ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
 991                         if (!ndlp) {
 992                                 lpfc_disc_start(phba);
 993                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 994                                 kfree(mp);
 995                                 mempool_free( pmb, phba->mbox_mem_pool);
 996                                 return;
 997                         } else {
 998                                 lpfc_nlp_init(phba, ndlp, NameServer_DID);
 999                                 ndlp->nlp_type |= NLP_FABRIC;
1000                         }
1001                 }
1002                 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1003                 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1004                 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
1005                 if (phba->cfg_fdmi_on) {
1006                         ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
1007                                                                 GFP_KERNEL);
1008                         if (ndlp_fdmi) {
1009                                 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
1010                                 ndlp_fdmi->nlp_type |= NLP_FABRIC;
1011                                 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
1012                                 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
1013                         }
1014                 }
1015         }
1016
1017         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1018         kfree(mp);
1019         mempool_free( pmb, phba->mbox_mem_pool);
1020         return;
1021 }
1022
1023 /*
1024  * This routine handles processing a NameServer REG_LOGIN mailbox
1025  * command upon completion. It is setup in the LPFC_MBOXQ
1026  * as the completion routine when the command is
1027  * handed off to the SLI layer.
1028  */
1029 void
1030 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1031 {
1032         struct lpfc_sli *psli;
1033         MAILBOX_t *mb;
1034         struct lpfc_dmabuf *mp;
1035         struct lpfc_nodelist *ndlp;
1036
1037         psli = &phba->sli;
1038         mb = &pmb->mb;
1039
1040         ndlp = (struct lpfc_nodelist *) pmb->context2;
1041         mp = (struct lpfc_dmabuf *) (pmb->context1);
1042
1043         if (mb->mbxStatus) {
1044                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1045                 kfree(mp);
1046                 mempool_free( pmb, phba->mbox_mem_pool);
1047                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1048
1049                 /* RegLogin failed, so just use loop map to make discovery
1050                    list */
1051                 lpfc_disc_list_loopmap(phba);
1052
1053                 /* Start discovery */
1054                 lpfc_disc_start(phba);
1055                 return;
1056         }
1057
1058         pmb->context1 = NULL;
1059
1060         ndlp->nlp_rpi = mb->un.varWords[0];
1061         ndlp->nlp_type |= NLP_FABRIC;
1062         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1063         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1064
1065         if (phba->hba_state < LPFC_HBA_READY) {
1066                 /* Link up discovery requires Fabrib registration. */
1067                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1068                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1069                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1070         }
1071
1072         phba->fc_ns_retry = 0;
1073         /* Good status, issue CT Request to NameServer */
1074         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1075                 /* Cannot issue NameServer Query, so finish up discovery */
1076                 lpfc_disc_start(phba);
1077         }
1078
1079         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1080         kfree(mp);
1081         mempool_free( pmb, phba->mbox_mem_pool);
1082
1083         return;
1084 }
1085
1086 static void
1087 lpfc_register_remote_port(struct lpfc_hba * phba,
1088                             struct lpfc_nodelist * ndlp)
1089 {
1090         struct fc_rport *rport;
1091         struct lpfc_rport_data *rdata;
1092         struct fc_rport_identifiers rport_ids;
1093
1094         /* Remote port has reappeared. Re-register w/ FC transport */
1095         rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1096         rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1097         rport_ids.port_id = ndlp->nlp_DID;
1098         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1099
1100         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1101         if (!rport) {
1102                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1103                            "Warning: fc_remote_port_add failed\n");
1104                 return;
1105         }
1106
1107         /* initialize static port data */
1108         rport->maxframe_size = ndlp->nlp_maxframe;
1109         rport->supported_classes = ndlp->nlp_class_sup;
1110         rdata = rport->dd_data;
1111         rdata->pnode = ndlp;
1112
1113         if (ndlp->nlp_type & NLP_FCP_TARGET)
1114                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1115         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1116                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1117
1118
1119         if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
1120                 fc_remote_port_rolechg(rport, rport_ids.roles);
1121
1122         if ((rport->scsi_target_id != -1) &&
1123                 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1124                 ndlp->nlp_sid = rport->scsi_target_id;
1125         }
1126
1127         return;
1128 }
1129
1130 static void
1131 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1132                             struct lpfc_nodelist * ndlp)
1133 {
1134         struct fc_rport *rport = ndlp->rport;
1135         struct lpfc_rport_data *rdata = rport->dd_data;
1136
1137         if (rport->scsi_target_id == -1) {
1138                 ndlp->rport = NULL;
1139                 rdata->pnode = NULL;
1140         }
1141
1142         fc_remote_port_delete(rport);
1143
1144         return;
1145 }
1146
1147 int
1148 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1149 {
1150         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1151         struct lpfc_sli      *psli;
1152
1153         psli = &phba->sli;
1154         /* Sanity check to ensure we are not moving to / from the same list */
1155         if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1156                 if (list != NLP_NO_LIST)
1157                         return 0;
1158
1159         spin_lock_irq(phba->host->host_lock);
1160         switch (nlp->nlp_flag & NLP_LIST_MASK) {
1161         case NLP_NO_LIST: /* Not on any list */
1162                 break;
1163         case NLP_UNUSED_LIST:
1164                 phba->fc_unused_cnt--;
1165                 list_del(&nlp->nlp_listp);
1166                 break;
1167         case NLP_PLOGI_LIST:
1168                 phba->fc_plogi_cnt--;
1169                 list_del(&nlp->nlp_listp);
1170                 break;
1171         case NLP_ADISC_LIST:
1172                 phba->fc_adisc_cnt--;
1173                 list_del(&nlp->nlp_listp);
1174                 break;
1175         case NLP_REGLOGIN_LIST:
1176                 phba->fc_reglogin_cnt--;
1177                 list_del(&nlp->nlp_listp);
1178                 break;
1179         case NLP_PRLI_LIST:
1180                 phba->fc_prli_cnt--;
1181                 list_del(&nlp->nlp_listp);
1182                 break;
1183         case NLP_UNMAPPED_LIST:
1184                 phba->fc_unmap_cnt--;
1185                 list_del(&nlp->nlp_listp);
1186                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1187                 nlp->nlp_type &= ~NLP_FC_NODE;
1188                 phba->nport_event_cnt++;
1189                 if (nlp->rport)
1190                         rport_del = unmapped;
1191                 break;
1192         case NLP_MAPPED_LIST:
1193                 phba->fc_map_cnt--;
1194                 list_del(&nlp->nlp_listp);
1195                 phba->nport_event_cnt++;
1196                 if (nlp->rport)
1197                         rport_del = mapped;
1198                 break;
1199         case NLP_NPR_LIST:
1200                 phba->fc_npr_cnt--;
1201                 list_del(&nlp->nlp_listp);
1202                 /* Stop delay tmo if taking node off NPR list */
1203                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1204                    (list != NLP_NPR_LIST)) {
1205                         spin_unlock_irq(phba->host->host_lock);
1206                         lpfc_cancel_retry_delay_tmo(phba, nlp);
1207                         spin_lock_irq(phba->host->host_lock);
1208                 }
1209                 break;
1210         }
1211
1212         nlp->nlp_flag &= ~NLP_LIST_MASK;
1213
1214         /* Add NPort <did> to <num> list */
1215         lpfc_printf_log(phba,
1216                         KERN_INFO,
1217                         LOG_NODE,
1218                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1219                         phba->brd_no,
1220                         nlp->nlp_DID, list, nlp->nlp_flag);
1221
1222         switch (list) {
1223         case NLP_NO_LIST: /* No list, just remove it */
1224                 spin_unlock_irq(phba->host->host_lock);
1225                 lpfc_nlp_remove(phba, nlp);
1226                 spin_lock_irq(phba->host->host_lock);
1227                 /* as node removed - stop further transport calls */
1228                 rport_del = none;
1229                 break;
1230         case NLP_UNUSED_LIST:
1231                 nlp->nlp_flag |= list;
1232                 /* Put it at the end of the unused list */
1233                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1234                 phba->fc_unused_cnt++;
1235                 break;
1236         case NLP_PLOGI_LIST:
1237                 nlp->nlp_flag |= list;
1238                 /* Put it at the end of the plogi list */
1239                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1240                 phba->fc_plogi_cnt++;
1241                 break;
1242         case NLP_ADISC_LIST:
1243                 nlp->nlp_flag |= list;
1244                 /* Put it at the end of the adisc list */
1245                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1246                 phba->fc_adisc_cnt++;
1247                 break;
1248         case NLP_REGLOGIN_LIST:
1249                 nlp->nlp_flag |= list;
1250                 /* Put it at the end of the reglogin list */
1251                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1252                 phba->fc_reglogin_cnt++;
1253                 break;
1254         case NLP_PRLI_LIST:
1255                 nlp->nlp_flag |= list;
1256                 /* Put it at the end of the prli list */
1257                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1258                 phba->fc_prli_cnt++;
1259                 break;
1260         case NLP_UNMAPPED_LIST:
1261                 rport_add = unmapped;
1262                 /* ensure all vestiges of "mapped" significance are gone */
1263                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1264                 nlp->nlp_flag |= list;
1265                 /* Put it at the end of the unmap list */
1266                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1267                 phba->fc_unmap_cnt++;
1268                 phba->nport_event_cnt++;
1269                 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1270                 nlp->nlp_type |= NLP_FC_NODE;
1271                 break;
1272         case NLP_MAPPED_LIST:
1273                 rport_add = mapped;
1274                 nlp->nlp_flag |= list;
1275                 /* Put it at the end of the map list */
1276                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1277                 phba->fc_map_cnt++;
1278                 phba->nport_event_cnt++;
1279                 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1280                 break;
1281         case NLP_NPR_LIST:
1282                 nlp->nlp_flag |= list;
1283                 /* Put it at the end of the npr list */
1284                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1285                 phba->fc_npr_cnt++;
1286
1287                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1288                 break;
1289         case NLP_JUST_DQ:
1290                 break;
1291         }
1292
1293         spin_unlock_irq(phba->host->host_lock);
1294
1295         /*
1296          * We make all the calls into the transport after we have
1297          * moved the node between lists. This so that we don't
1298          * release the lock while in-between lists.
1299          */
1300
1301         /* Don't upcall midlayer if we're unloading */
1302         if (!(phba->fc_flag & FC_UNLOADING)) {
1303                 /*
1304                  * We revalidate the rport pointer as the "add" function
1305                  * may have removed the remote port.
1306                  */
1307                 if ((rport_del != none) && nlp->rport)
1308                         lpfc_unregister_remote_port(phba, nlp);
1309
1310                 if (rport_add != none) {
1311                         /*
1312                          * Tell the fc transport about the port, if we haven't
1313                          * already. If we have, and it's a scsi entity, be
1314                          * sure to unblock any attached scsi devices
1315                          */
1316                         if ((!nlp->rport) || (nlp->rport->port_state ==
1317                                         FC_PORTSTATE_BLOCKED))
1318                                 lpfc_register_remote_port(phba, nlp);
1319
1320                         /*
1321                          * if we added to Mapped list, but the remote port
1322                          * registration failed or assigned a target id outside
1323                          * our presentable range - move the node to the
1324                          * Unmapped List
1325                          */
1326                         if ((rport_add == mapped) &&
1327                             ((!nlp->rport) ||
1328                              (nlp->rport->scsi_target_id == -1) ||
1329                              (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
1330                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1331                                 spin_lock_irq(phba->host->host_lock);
1332                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1333                                 spin_unlock_irq(phba->host->host_lock);
1334                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1335                         }
1336                 }
1337         }
1338         return 0;
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->ip_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         struct lpfc_sli *psli;
1451         struct lpfc_sli_ring *pring;
1452         struct lpfc_iocbq *iocb, *next_iocb;
1453         IOCB_t *icmd;
1454         uint32_t rpi, i;
1455
1456         /*
1457          * Everything that matches on txcmplq will be returned
1458          * by firmware with a no rpi error.
1459          */
1460         psli = &phba->sli;
1461         rpi = ndlp->nlp_rpi;
1462         if (rpi) {
1463                 /* Now process each ring */
1464                 for (i = 0; i < psli->num_rings; i++) {
1465                         pring = &psli->ring[i];
1466
1467                         spin_lock_irq(phba->host->host_lock);
1468                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1469                                                 list) {
1470                                 /*
1471                                  * Check to see if iocb matches the nport we are
1472                                  * looking for
1473                                  */
1474                                 if ((lpfc_check_sli_ndlp
1475                                      (phba, pring, iocb, ndlp))) {
1476                                         /* It matches, so deque and call compl
1477                                            with an error */
1478                                         list_del(&iocb->list);
1479                                         pring->txq_cnt--;
1480                                         if (iocb->iocb_cmpl) {
1481                                                 icmd = &iocb->iocb;
1482                                                 icmd->ulpStatus =
1483                                                     IOSTAT_LOCAL_REJECT;
1484                                                 icmd->un.ulpWord[4] =
1485                                                     IOERR_SLI_ABORTED;
1486                                                 spin_unlock_irq(phba->host->
1487                                                                 host_lock);
1488                                                 (iocb->iocb_cmpl) (phba,
1489                                                                    iocb, iocb);
1490                                                 spin_lock_irq(phba->host->
1491                                                               host_lock);
1492                                         } else
1493                                                 lpfc_sli_release_iocbq(phba,
1494                                                                        iocb);
1495                                 }
1496                         }
1497                         spin_unlock_irq(phba->host->host_lock);
1498
1499                 }
1500         }
1501         return 0;
1502 }
1503
1504 /*
1505  * Free rpi associated with LPFC_NODELIST entry.
1506  * This routine is called from lpfc_freenode(), when we are removing
1507  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1508  * LOGO that completes successfully, and we are waiting to PLOGI back
1509  * to the remote NPort. In addition, it is called after we receive
1510  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1511  * we are waiting to PLOGI back to the remote NPort.
1512  */
1513 int
1514 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1515 {
1516         LPFC_MBOXQ_t *mbox;
1517         int rc;
1518
1519         if (ndlp->nlp_rpi) {
1520                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1521                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1522                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1523                         rc = lpfc_sli_issue_mbox
1524                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1525                         if (rc == MBX_NOT_FINISHED)
1526                                 mempool_free( mbox, phba->mbox_mem_pool);
1527                 }
1528                 lpfc_no_rpi(phba, ndlp);
1529                 ndlp->nlp_rpi = 0;
1530                 return 1;
1531         }
1532         return 0;
1533 }
1534
1535 /*
1536  * Free resources associated with LPFC_NODELIST entry
1537  * so it can be freed.
1538  */
1539 static int
1540 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1541 {
1542         LPFC_MBOXQ_t       *mb;
1543         LPFC_MBOXQ_t       *nextmb;
1544         struct lpfc_dmabuf *mp;
1545
1546         /* Cleanup node for NPort <nlp_DID> */
1547         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1548                         "%d:0900 Cleanup node for NPort x%x "
1549                         "Data: x%x x%x x%x\n",
1550                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1551                         ndlp->nlp_state, ndlp->nlp_rpi);
1552
1553         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1554
1555         /*
1556          * if unloading the driver - just leave the remote port in place.
1557          * The driver unload will force the attached devices to detach
1558          * and flush cache's w/o generating flush errors.
1559          */
1560         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1561                 lpfc_unregister_remote_port(phba, ndlp);
1562                 ndlp->nlp_sid = NLP_NO_SID;
1563         }
1564
1565         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1566         if ((mb = phba->sli.mbox_active)) {
1567                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1568                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1569                         mb->context2 = NULL;
1570                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1571                 }
1572         }
1573
1574         spin_lock_irq(phba->host->host_lock);
1575         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1576                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1577                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1578                         mp = (struct lpfc_dmabuf *) (mb->context1);
1579                         if (mp) {
1580                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1581                                 kfree(mp);
1582                         }
1583                         list_del(&mb->list);
1584                         mempool_free(mb, phba->mbox_mem_pool);
1585                 }
1586         }
1587         spin_unlock_irq(phba->host->host_lock);
1588
1589         lpfc_els_abort(phba,ndlp,0);
1590         spin_lock_irq(phba->host->host_lock);
1591         ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1592         spin_unlock_irq(phba->host->host_lock);
1593
1594         ndlp->nlp_last_elscmd = 0;
1595         del_timer_sync(&ndlp->nlp_delayfunc);
1596
1597         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1598                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1599
1600         lpfc_unreg_rpi(phba, ndlp);
1601
1602         return 0;
1603 }
1604
1605 /*
1606  * Check to see if we can free the nlp back to the freelist.
1607  * If we are in the middle of using the nlp in the discovery state
1608  * machine, defer the free till we reach the end of the state machine.
1609  */
1610 int
1611 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1612 {
1613
1614         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1615                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1616         }
1617
1618         if (ndlp->nlp_disc_refcnt) {
1619                 spin_lock_irq(phba->host->host_lock);
1620                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1621                 spin_unlock_irq(phba->host->host_lock);
1622         } else {
1623                 lpfc_freenode(phba, ndlp);
1624                 mempool_free( ndlp, phba->nlp_mem_pool);
1625         }
1626         return 0;
1627 }
1628
1629 static int
1630 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1631 {
1632         D_ID mydid;
1633         D_ID ndlpdid;
1634         D_ID matchdid;
1635
1636         if (did == Bcast_DID)
1637                 return 0;
1638
1639         if (ndlp->nlp_DID == 0) {
1640                 return 0;
1641         }
1642
1643         /* First check for Direct match */
1644         if (ndlp->nlp_DID == did)
1645                 return 1;
1646
1647         /* Next check for area/domain identically equals 0 match */
1648         mydid.un.word = phba->fc_myDID;
1649         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1650                 return 0;
1651         }
1652
1653         matchdid.un.word = did;
1654         ndlpdid.un.word = ndlp->nlp_DID;
1655         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1656                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1657                     (mydid.un.b.area == matchdid.un.b.area)) {
1658                         if ((ndlpdid.un.b.domain == 0) &&
1659                             (ndlpdid.un.b.area == 0)) {
1660                                 if (ndlpdid.un.b.id)
1661                                         return 1;
1662                         }
1663                         return 0;
1664                 }
1665
1666                 matchdid.un.word = ndlp->nlp_DID;
1667                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1668                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1669                         if ((matchdid.un.b.domain == 0) &&
1670                             (matchdid.un.b.area == 0)) {
1671                                 if (matchdid.un.b.id)
1672                                         return 1;
1673                         }
1674                 }
1675         }
1676         return 0;
1677 }
1678
1679 /* Search for a nodelist entry on a specific list */
1680 struct lpfc_nodelist *
1681 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1682 {
1683         struct lpfc_nodelist *ndlp, *next_ndlp;
1684         uint32_t data1;
1685
1686         spin_lock_irq(phba->host->host_lock);
1687         if (order & NLP_SEARCH_UNMAPPED) {
1688                 list_for_each_entry_safe(ndlp, next_ndlp,
1689                                          &phba->fc_nlpunmap_list, nlp_listp) {
1690                         if (lpfc_matchdid(phba, ndlp, did)) {
1691                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1692                                          ((uint32_t) ndlp->nlp_xri << 16) |
1693                                          ((uint32_t) ndlp->nlp_type << 8) |
1694                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1695                                 /* FIND node DID unmapped */
1696                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1697                                                 "%d:0929 FIND node DID unmapped"
1698                                                 " Data: x%p x%x x%x x%x\n",
1699                                                 phba->brd_no,
1700                                                 ndlp, ndlp->nlp_DID,
1701                                                 ndlp->nlp_flag, data1);
1702                                 spin_unlock_irq(phba->host->host_lock);
1703                                 return ndlp;
1704                         }
1705                 }
1706         }
1707
1708         if (order & NLP_SEARCH_MAPPED) {
1709                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1710                                         nlp_listp) {
1711                         if (lpfc_matchdid(phba, ndlp, did)) {
1712
1713                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1714                                          ((uint32_t) ndlp->nlp_xri << 16) |
1715                                          ((uint32_t) ndlp->nlp_type << 8) |
1716                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1717                                 /* FIND node DID mapped */
1718                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1719                                                 "%d:0930 FIND node DID mapped "
1720                                                 "Data: x%p x%x x%x x%x\n",
1721                                                 phba->brd_no,
1722                                                 ndlp, ndlp->nlp_DID,
1723                                                 ndlp->nlp_flag, data1);
1724                                 spin_unlock_irq(phba->host->host_lock);
1725                                 return ndlp;
1726                         }
1727                 }
1728         }
1729
1730         if (order & NLP_SEARCH_PLOGI) {
1731                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1732                                         nlp_listp) {
1733                         if (lpfc_matchdid(phba, ndlp, did)) {
1734
1735                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1736                                          ((uint32_t) ndlp->nlp_xri << 16) |
1737                                          ((uint32_t) ndlp->nlp_type << 8) |
1738                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1739                                 /* LOG change to PLOGI */
1740                                 /* FIND node DID plogi */
1741                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1742                                                 "%d:0908 FIND node DID plogi "
1743                                                 "Data: x%p x%x x%x x%x\n",
1744                                                 phba->brd_no,
1745                                                 ndlp, ndlp->nlp_DID,
1746                                                 ndlp->nlp_flag, data1);
1747                                 spin_unlock_irq(phba->host->host_lock);
1748                                 return ndlp;
1749                         }
1750                 }
1751         }
1752
1753         if (order & NLP_SEARCH_ADISC) {
1754                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1755                                         nlp_listp) {
1756                         if (lpfc_matchdid(phba, ndlp, did)) {
1757
1758                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1759                                          ((uint32_t) ndlp->nlp_xri << 16) |
1760                                          ((uint32_t) ndlp->nlp_type << 8) |
1761                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1762                                 /* LOG change to ADISC */
1763                                 /* FIND node DID adisc */
1764                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1765                                                 "%d:0931 FIND node DID adisc "
1766                                                 "Data: x%p x%x x%x x%x\n",
1767                                                 phba->brd_no,
1768                                                 ndlp, ndlp->nlp_DID,
1769                                                 ndlp->nlp_flag, data1);
1770                                 spin_unlock_irq(phba->host->host_lock);
1771                                 return ndlp;
1772                         }
1773                 }
1774         }
1775
1776         if (order & NLP_SEARCH_REGLOGIN) {
1777                 list_for_each_entry_safe(ndlp, next_ndlp,
1778                                          &phba->fc_reglogin_list, nlp_listp) {
1779                         if (lpfc_matchdid(phba, ndlp, did)) {
1780
1781                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1782                                          ((uint32_t) ndlp->nlp_xri << 16) |
1783                                          ((uint32_t) ndlp->nlp_type << 8) |
1784                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1785                                 /* LOG change to REGLOGIN */
1786                                 /* FIND node DID reglogin */
1787                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1788                                                 "%d:0901 FIND node DID reglogin"
1789                                                 " Data: x%p x%x x%x x%x\n",
1790                                                 phba->brd_no,
1791                                                 ndlp, ndlp->nlp_DID,
1792                                                 ndlp->nlp_flag, data1);
1793                                 spin_unlock_irq(phba->host->host_lock);
1794                                 return ndlp;
1795                         }
1796                 }
1797         }
1798
1799         if (order & NLP_SEARCH_PRLI) {
1800                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1801                                         nlp_listp) {
1802                         if (lpfc_matchdid(phba, ndlp, did)) {
1803
1804                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1805                                          ((uint32_t) ndlp->nlp_xri << 16) |
1806                                          ((uint32_t) ndlp->nlp_type << 8) |
1807                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1808                                 /* LOG change to PRLI */
1809                                 /* FIND node DID prli */
1810                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1811                                                 "%d:0902 FIND node DID prli "
1812                                                 "Data: x%p x%x x%x x%x\n",
1813                                                 phba->brd_no,
1814                                                 ndlp, ndlp->nlp_DID,
1815                                                 ndlp->nlp_flag, data1);
1816                                 spin_unlock_irq(phba->host->host_lock);
1817                                 return ndlp;
1818                         }
1819                 }
1820         }
1821
1822         if (order & NLP_SEARCH_NPR) {
1823                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1824                                         nlp_listp) {
1825                         if (lpfc_matchdid(phba, ndlp, did)) {
1826
1827                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1828                                          ((uint32_t) ndlp->nlp_xri << 16) |
1829                                          ((uint32_t) ndlp->nlp_type << 8) |
1830                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1831                                 /* LOG change to NPR */
1832                                 /* FIND node DID npr */
1833                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1834                                                 "%d:0903 FIND node DID npr "
1835                                                 "Data: x%p x%x x%x x%x\n",
1836                                                 phba->brd_no,
1837                                                 ndlp, ndlp->nlp_DID,
1838                                                 ndlp->nlp_flag, data1);
1839                                 spin_unlock_irq(phba->host->host_lock);
1840                                 return ndlp;
1841                         }
1842                 }
1843         }
1844
1845         if (order & NLP_SEARCH_UNUSED) {
1846                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1847                                         nlp_listp) {
1848                         if (lpfc_matchdid(phba, ndlp, did)) {
1849
1850                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1851                                          ((uint32_t) ndlp->nlp_xri << 16) |
1852                                          ((uint32_t) ndlp->nlp_type << 8) |
1853                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1854                                 /* LOG change to UNUSED */
1855                                 /* FIND node DID unused */
1856                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1857                                                 "%d:0905 FIND node DID unused "
1858                                                 "Data: x%p x%x x%x x%x\n",
1859                                                 phba->brd_no,
1860                                                 ndlp, ndlp->nlp_DID,
1861                                                 ndlp->nlp_flag, data1);
1862                                 spin_unlock_irq(phba->host->host_lock);
1863                                 return ndlp;
1864                         }
1865                 }
1866         }
1867
1868         spin_unlock_irq(phba->host->host_lock);
1869
1870         /* FIND node did <did> NOT FOUND */
1871         lpfc_printf_log(phba,
1872                         KERN_INFO,
1873                         LOG_NODE,
1874                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1875                         phba->brd_no, did, order);
1876
1877         /* no match found */
1878         return NULL;
1879 }
1880
1881 struct lpfc_nodelist *
1882 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1883 {
1884         struct lpfc_nodelist *ndlp;
1885         uint32_t flg;
1886
1887         ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1888         if (!ndlp) {
1889                 if ((phba->fc_flag & FC_RSCN_MODE) &&
1890                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1891                         return NULL;
1892                 ndlp = (struct lpfc_nodelist *)
1893                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1894                 if (!ndlp)
1895                         return NULL;
1896                 lpfc_nlp_init(phba, ndlp, did);
1897                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1898                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1899                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1900                 return ndlp;
1901         }
1902         if (phba->fc_flag & FC_RSCN_MODE) {
1903                 if (lpfc_rscn_payload_check(phba, did)) {
1904                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1905
1906                         /* Since this node is marked for discovery,
1907                          * delay timeout is not needed.
1908                          */
1909                         if (ndlp->nlp_flag & NLP_DELAY_TMO)
1910                                 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1911                 } else
1912                         ndlp = NULL;
1913         } else {
1914                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1915                 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1916                         return NULL;
1917                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1918                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1919                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1920         }
1921         return ndlp;
1922 }
1923
1924 /* Build a list of nodes to discover based on the loopmap */
1925 void
1926 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1927 {
1928         int j;
1929         uint32_t alpa, index;
1930
1931         if (phba->hba_state <= LPFC_LINK_DOWN) {
1932                 return;
1933         }
1934         if (phba->fc_topology != TOPOLOGY_LOOP) {
1935                 return;
1936         }
1937
1938         /* Check for loop map present or not */
1939         if (phba->alpa_map[0]) {
1940                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1941                         alpa = phba->alpa_map[j];
1942
1943                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1944                                 continue;
1945                         }
1946                         lpfc_setup_disc_node(phba, alpa);
1947                 }
1948         } else {
1949                 /* No alpamap, so try all alpa's */
1950                 for (j = 0; j < FC_MAXLOOP; j++) {
1951                         /* If cfg_scan_down is set, start from highest
1952                          * ALPA (0xef) to lowest (0x1).
1953                          */
1954                         if (phba->cfg_scan_down)
1955                                 index = j;
1956                         else
1957                                 index = FC_MAXLOOP - j - 1;
1958                         alpa = lpfcAlpaArray[index];
1959                         if ((phba->fc_myDID & 0xff) == alpa) {
1960                                 continue;
1961                         }
1962
1963                         lpfc_setup_disc_node(phba, alpa);
1964                 }
1965         }
1966         return;
1967 }
1968
1969 /* Start Link up / RSCN discovery on NPR list */
1970 void
1971 lpfc_disc_start(struct lpfc_hba * phba)
1972 {
1973         struct lpfc_sli *psli;
1974         LPFC_MBOXQ_t *mbox;
1975         struct lpfc_nodelist *ndlp, *next_ndlp;
1976         uint32_t did_changed, num_sent;
1977         uint32_t clear_la_pending;
1978         int rc;
1979
1980         psli = &phba->sli;
1981
1982         if (phba->hba_state <= LPFC_LINK_DOWN) {
1983                 return;
1984         }
1985         if (phba->hba_state == LPFC_CLEAR_LA)
1986                 clear_la_pending = 1;
1987         else
1988                 clear_la_pending = 0;
1989
1990         if (phba->hba_state < LPFC_HBA_READY) {
1991                 phba->hba_state = LPFC_DISC_AUTH;
1992         }
1993         lpfc_set_disctmo(phba);
1994
1995         if (phba->fc_prevDID == phba->fc_myDID) {
1996                 did_changed = 0;
1997         } else {
1998                 did_changed = 1;
1999         }
2000         phba->fc_prevDID = phba->fc_myDID;
2001         phba->num_disc_nodes = 0;
2002
2003         /* Start Discovery state <hba_state> */
2004         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2005                         "%d:0202 Start Discovery hba state x%x "
2006                         "Data: x%x x%x x%x\n",
2007                         phba->brd_no, phba->hba_state, phba->fc_flag,
2008                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2009
2010         /* If our did changed, we MUST do PLOGI */
2011         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2012                                 nlp_listp) {
2013                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2014                         if (did_changed) {
2015                                 spin_lock_irq(phba->host->host_lock);
2016                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2017                                 spin_unlock_irq(phba->host->host_lock);
2018                         }
2019                 }
2020         }
2021
2022         /* First do ADISCs - if any */
2023         num_sent = lpfc_els_disc_adisc(phba);
2024
2025         if (num_sent)
2026                 return;
2027
2028         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2029                 /* If we get here, there is nothing to ADISC */
2030                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2031                         phba->hba_state = LPFC_CLEAR_LA;
2032                         lpfc_clear_la(phba, mbox);
2033                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2034                         rc = lpfc_sli_issue_mbox(phba, mbox,
2035                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
2036                         if (rc == MBX_NOT_FINISHED) {
2037                                 mempool_free( mbox, phba->mbox_mem_pool);
2038                                 lpfc_disc_flush_list(phba);
2039                                 psli->ring[(psli->ip_ring)].flag &=
2040                                         ~LPFC_STOP_IOCB_EVENT;
2041                                 psli->ring[(psli->fcp_ring)].flag &=
2042                                         ~LPFC_STOP_IOCB_EVENT;
2043                                 psli->ring[(psli->next_ring)].flag &=
2044                                         ~LPFC_STOP_IOCB_EVENT;
2045                                 phba->hba_state = LPFC_HBA_READY;
2046                         }
2047                 }
2048         } else {
2049                 /* Next do PLOGIs - if any */
2050                 num_sent = lpfc_els_disc_plogi(phba);
2051
2052                 if (num_sent)
2053                         return;
2054
2055                 if (phba->fc_flag & FC_RSCN_MODE) {
2056                         /* Check to see if more RSCNs came in while we
2057                          * were processing this one.
2058                          */
2059                         if ((phba->fc_rscn_id_cnt == 0) &&
2060                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2061                                 spin_lock_irq(phba->host->host_lock);
2062                                 phba->fc_flag &= ~FC_RSCN_MODE;
2063                                 spin_unlock_irq(phba->host->host_lock);
2064                         } else
2065                                 lpfc_els_handle_rscn(phba);
2066                 }
2067         }
2068         return;
2069 }
2070
2071 /*
2072  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2073  *  ring the match the sppecified nodelist.
2074  */
2075 static void
2076 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2077 {
2078         struct lpfc_sli *psli;
2079         IOCB_t     *icmd;
2080         struct lpfc_iocbq    *iocb, *next_iocb;
2081         struct lpfc_sli_ring *pring;
2082         struct lpfc_dmabuf   *mp;
2083
2084         psli = &phba->sli;
2085         pring = &psli->ring[LPFC_ELS_RING];
2086
2087         /* Error matching iocb on txq or txcmplq
2088          * First check the txq.
2089          */
2090         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2091                 if (iocb->context1 != ndlp) {
2092                         continue;
2093                 }
2094                 icmd = &iocb->iocb;
2095                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2096                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2097
2098                         list_del(&iocb->list);
2099                         pring->txq_cnt--;
2100                         lpfc_els_free_iocb(phba, iocb);
2101                 }
2102         }
2103
2104         /* Next check the txcmplq */
2105         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2106                 if (iocb->context1 != ndlp) {
2107                         continue;
2108                 }
2109                 icmd = &iocb->iocb;
2110                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2111                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2112
2113                         iocb->iocb_cmpl = NULL;
2114                         /* context2 = cmd, context2->next = rsp, context3 =
2115                            bpl */
2116                         if (iocb->context2) {
2117                                 /* Free the response IOCB before handling the
2118                                    command. */
2119
2120                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2121                                 mp = list_get_first(&mp->list,
2122                                                     struct lpfc_dmabuf,
2123                                                     list);
2124                                 if (mp) {
2125                                         /* Delay before releasing rsp buffer to
2126                                          * give UNREG mbox a chance to take
2127                                          * effect.
2128                                          */
2129                                         list_add(&mp->list,
2130                                                 &phba->freebufList);
2131                                 }
2132                                 lpfc_mbuf_free(phba,
2133                                                ((struct lpfc_dmabuf *)
2134                                                 iocb->context2)->virt,
2135                                                ((struct lpfc_dmabuf *)
2136                                                 iocb->context2)->phys);
2137                                 kfree(iocb->context2);
2138                         }
2139
2140                         if (iocb->context3) {
2141                                 lpfc_mbuf_free(phba,
2142                                                ((struct lpfc_dmabuf *)
2143                                                 iocb->context3)->virt,
2144                                                ((struct lpfc_dmabuf *)
2145                                                 iocb->context3)->phys);
2146                                 kfree(iocb->context3);
2147                         }
2148                 }
2149         }
2150
2151         return;
2152 }
2153
2154 void
2155 lpfc_disc_flush_list(struct lpfc_hba * phba)
2156 {
2157         struct lpfc_nodelist *ndlp, *next_ndlp;
2158
2159         if (phba->fc_plogi_cnt) {
2160                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2161                                         nlp_listp) {
2162                         lpfc_free_tx(phba, ndlp);
2163                         lpfc_nlp_remove(phba, ndlp);
2164                 }
2165         }
2166         if (phba->fc_adisc_cnt) {
2167                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2168                                         nlp_listp) {
2169                         lpfc_free_tx(phba, ndlp);
2170                         lpfc_nlp_remove(phba, ndlp);
2171                 }
2172         }
2173         return;
2174 }
2175
2176 /*****************************************************************************/
2177 /*
2178  * NAME:     lpfc_disc_timeout
2179  *
2180  * FUNCTION: Fibre Channel driver discovery timeout routine.
2181  *
2182  * EXECUTION ENVIRONMENT: interrupt only
2183  *
2184  * CALLED FROM:
2185  *      Timer function
2186  *
2187  * RETURNS:
2188  *      none
2189  */
2190 /*****************************************************************************/
2191 void
2192 lpfc_disc_timeout(unsigned long ptr)
2193 {
2194         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2195         unsigned long flags = 0;
2196
2197         if (unlikely(!phba))
2198                 return;
2199
2200         spin_lock_irqsave(phba->host->host_lock, flags);
2201         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2202                 phba->work_hba_events |= WORKER_DISC_TMO;
2203                 if (phba->work_wait)
2204                         wake_up(phba->work_wait);
2205         }
2206         spin_unlock_irqrestore(phba->host->host_lock, flags);
2207         return;
2208 }
2209
2210 static void
2211 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2212 {
2213         struct lpfc_sli *psli;
2214         struct lpfc_nodelist *ndlp, *next_ndlp;
2215         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2216         int rc, clrlaerr = 0;
2217
2218         if (unlikely(!phba))
2219                 return;
2220
2221         if (!(phba->fc_flag & FC_DISC_TMO))
2222                 return;
2223
2224         psli = &phba->sli;
2225
2226         spin_lock_irq(phba->host->host_lock);
2227         phba->fc_flag &= ~FC_DISC_TMO;
2228         spin_unlock_irq(phba->host->host_lock);
2229
2230         switch (phba->hba_state) {
2231
2232         case LPFC_LOCAL_CFG_LINK:
2233         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2234                 /* FAN timeout */
2235                 lpfc_printf_log(phba,
2236                                  KERN_WARNING,
2237                                  LOG_DISCOVERY,
2238                                  "%d:0221 FAN timeout\n",
2239                                  phba->brd_no);
2240
2241                 /* Start discovery by sending FLOGI, clean up old rpis */
2242                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2243                                         nlp_listp) {
2244                         if (ndlp->nlp_type & NLP_FABRIC) {
2245                                 /* Clean up the ndlp on Fabric connections */
2246                                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2247                         } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2248                                 /* Fail outstanding IO now since device
2249                                  * is marked for PLOGI.
2250                                  */
2251                                 lpfc_unreg_rpi(phba, ndlp);
2252                         }
2253                 }
2254                 phba->hba_state = LPFC_FLOGI;
2255                 lpfc_set_disctmo(phba);
2256                 lpfc_initial_flogi(phba);
2257                 break;
2258
2259         case LPFC_FLOGI:
2260         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2261                 /* Initial FLOGI timeout */
2262                 lpfc_printf_log(phba,
2263                                  KERN_ERR,
2264                                  LOG_DISCOVERY,
2265                                  "%d:0222 Initial FLOGI timeout\n",
2266                                  phba->brd_no);
2267
2268                 /* Assume no Fabric and go on with discovery.
2269                  * Check for outstanding ELS FLOGI to abort.
2270                  */
2271
2272                 /* FLOGI failed, so just use loop map to make discovery list */
2273                 lpfc_disc_list_loopmap(phba);
2274
2275                 /* Start discovery */
2276                 lpfc_disc_start(phba);
2277                 break;
2278
2279         case LPFC_FABRIC_CFG_LINK:
2280         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2281            NameServer login */
2282                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2283                                 "%d:0223 Timeout while waiting for NameServer "
2284                                 "login\n", phba->brd_no);
2285
2286                 /* Next look for NameServer ndlp */
2287                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2288                 if (ndlp)
2289                         lpfc_nlp_remove(phba, ndlp);
2290                 /* Start discovery */
2291                 lpfc_disc_start(phba);
2292                 break;
2293
2294         case LPFC_NS_QRY:
2295         /* Check for wait for NameServer Rsp timeout */
2296                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2297                                 "%d:0224 NameServer Query timeout "
2298                                 "Data: x%x x%x\n",
2299                                 phba->brd_no,
2300                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2301
2302                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2303                                                                 NameServer_DID);
2304                 if (ndlp) {
2305                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2306                                 /* Try it one more time */
2307                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2308                                 if (rc == 0)
2309                                         break;
2310                         }
2311                         phba->fc_ns_retry = 0;
2312                 }
2313
2314                 /* Nothing to authenticate, so CLEAR_LA right now */
2315                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2316                 if (!clearlambox) {
2317                         clrlaerr = 1;
2318                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2319                                         "%d:0226 Device Discovery "
2320                                         "completion error\n",
2321                                         phba->brd_no);
2322                         phba->hba_state = LPFC_HBA_ERROR;
2323                         break;
2324                 }
2325
2326                 phba->hba_state = LPFC_CLEAR_LA;
2327                 lpfc_clear_la(phba, clearlambox);
2328                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2329                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2330                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2331                 if (rc == MBX_NOT_FINISHED) {
2332                         mempool_free(clearlambox, phba->mbox_mem_pool);
2333                         clrlaerr = 1;
2334                         break;
2335                 }
2336
2337                 /* Setup and issue mailbox INITIALIZE LINK command */
2338                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2339                 if (!initlinkmbox) {
2340                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2341                                         "%d:0206 Device Discovery "
2342                                         "completion error\n",
2343                                         phba->brd_no);
2344                         phba->hba_state = LPFC_HBA_ERROR;
2345                         break;
2346                 }
2347
2348                 lpfc_linkdown(phba);
2349                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2350                                phba->cfg_link_speed);
2351                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2352                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2353                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2354                 if (rc == MBX_NOT_FINISHED)
2355                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2356
2357                 break;
2358
2359         case LPFC_DISC_AUTH:
2360         /* Node Authentication timeout */
2361                 lpfc_printf_log(phba,
2362                                  KERN_ERR,
2363                                  LOG_DISCOVERY,
2364                                  "%d:0227 Node Authentication timeout\n",
2365                                  phba->brd_no);
2366                 lpfc_disc_flush_list(phba);
2367                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2368                 if (!clearlambox) {
2369                         clrlaerr = 1;
2370                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2371                                         "%d:0207 Device Discovery "
2372                                         "completion error\n",
2373                                         phba->brd_no);
2374                         phba->hba_state = LPFC_HBA_ERROR;
2375                         break;
2376                 }
2377                 phba->hba_state = LPFC_CLEAR_LA;
2378                 lpfc_clear_la(phba, clearlambox);
2379                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2380                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2381                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2382                 if (rc == MBX_NOT_FINISHED) {
2383                         mempool_free(clearlambox, phba->mbox_mem_pool);
2384                         clrlaerr = 1;
2385                 }
2386                 break;
2387
2388         case LPFC_CLEAR_LA:
2389         /* CLEAR LA timeout */
2390                 lpfc_printf_log(phba,
2391                                  KERN_ERR,
2392                                  LOG_DISCOVERY,
2393                                  "%d:0228 CLEAR LA timeout\n",
2394                                  phba->brd_no);
2395                 clrlaerr = 1;
2396                 break;
2397
2398         case LPFC_HBA_READY:
2399                 if (phba->fc_flag & FC_RSCN_MODE) {
2400                         lpfc_printf_log(phba,
2401                                         KERN_ERR,
2402                                         LOG_DISCOVERY,
2403                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2404                                         phba->brd_no,
2405                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2406
2407                         /* Cleanup any outstanding ELS commands */
2408                         lpfc_els_flush_cmd(phba);
2409
2410                         lpfc_els_flush_rscn(phba);
2411                         lpfc_disc_flush_list(phba);
2412                 }
2413                 break;
2414         }
2415
2416         if (clrlaerr) {
2417                 lpfc_disc_flush_list(phba);
2418                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2419                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2420                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2421                 phba->hba_state = LPFC_HBA_READY;
2422         }
2423
2424         return;
2425 }
2426
2427 /*
2428  * This routine handles processing a NameServer REG_LOGIN mailbox
2429  * command upon completion. It is setup in the LPFC_MBOXQ
2430  * as the completion routine when the command is
2431  * handed off to the SLI layer.
2432  */
2433 void
2434 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2435 {
2436         struct lpfc_sli *psli;
2437         MAILBOX_t *mb;
2438         struct lpfc_dmabuf *mp;
2439         struct lpfc_nodelist *ndlp;
2440
2441         psli = &phba->sli;
2442         mb = &pmb->mb;
2443
2444         ndlp = (struct lpfc_nodelist *) pmb->context2;
2445         mp = (struct lpfc_dmabuf *) (pmb->context1);
2446
2447         pmb->context1 = NULL;
2448
2449         ndlp->nlp_rpi = mb->un.varWords[0];
2450         ndlp->nlp_type |= NLP_FABRIC;
2451         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2452         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2453
2454         /* Start issuing Fabric-Device Management Interface (FDMI)
2455          * command to 0xfffffa (FDMI well known port)
2456          */
2457         if (phba->cfg_fdmi_on == 1) {
2458                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2459         } else {
2460                 /*
2461                  * Delay issuing FDMI command if fdmi-on=2
2462                  * (supporting RPA/hostnmae)
2463                  */
2464                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2465         }
2466
2467         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2468         kfree(mp);
2469         mempool_free( pmb, phba->mbox_mem_pool);
2470
2471         return;
2472 }
2473
2474 /*
2475  * This routine looks up the ndlp  lists
2476  * for the given RPI. If rpi found
2477  * it return the node list pointer
2478  * else return NULL.
2479  */
2480 struct lpfc_nodelist *
2481 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2482 {
2483         struct lpfc_nodelist *ndlp;
2484         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2485                                     &phba->fc_nlpmap_list,
2486                                     &phba->fc_plogi_list,
2487                                     &phba->fc_adisc_list,
2488                                     &phba->fc_reglogin_list};
2489         int i;
2490
2491         spin_lock_irq(phba->host->host_lock);
2492         for (i = 0; i < ARRAY_SIZE(lists); i++ )
2493                 list_for_each_entry(ndlp, lists[i], nlp_listp)
2494                         if (ndlp->nlp_rpi == rpi) {
2495                                 spin_unlock_irq(phba->host->host_lock);
2496                                 return ndlp;
2497                         }
2498         spin_unlock_irq(phba->host->host_lock);
2499         return NULL;
2500 }
2501
2502 /*
2503  * This routine looks up the ndlp  lists
2504  * for the given WWPN. If WWPN found
2505  * it return the node list pointer
2506  * else return NULL.
2507  */
2508 struct lpfc_nodelist *
2509 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2510                    struct lpfc_name * wwpn)
2511 {
2512         struct lpfc_nodelist *ndlp;
2513         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2514                                     &phba->fc_nlpmap_list,
2515                                     &phba->fc_npr_list,
2516                                     &phba->fc_plogi_list,
2517                                     &phba->fc_adisc_list,
2518                                     &phba->fc_reglogin_list,
2519                                     &phba->fc_prli_list};
2520         uint32_t search[]={NLP_SEARCH_UNMAPPED,
2521                            NLP_SEARCH_MAPPED,
2522                            NLP_SEARCH_NPR,
2523                            NLP_SEARCH_PLOGI,
2524                            NLP_SEARCH_ADISC,
2525                            NLP_SEARCH_REGLOGIN,
2526                            NLP_SEARCH_PRLI};
2527         int i;
2528
2529         spin_lock_irq(phba->host->host_lock);
2530         for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2531                 if (!(order & search[i]))
2532                         continue;
2533                 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2534                         if (memcmp(&ndlp->nlp_portname, wwpn,
2535                                    sizeof(struct lpfc_name)) == 0) {
2536                                 spin_unlock_irq(phba->host->host_lock);
2537                                 return ndlp;
2538                         }
2539                 }
2540         }
2541         spin_unlock_irq(phba->host->host_lock);
2542         return NULL;
2543 }
2544
2545 void
2546 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2547                  uint32_t did)
2548 {
2549         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2550         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2551         init_timer(&ndlp->nlp_delayfunc);
2552         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2553         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2554         ndlp->nlp_DID = did;
2555         ndlp->nlp_phba = phba;
2556         ndlp->nlp_sid = NLP_NO_SID;
2557         return;
2558 }