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_ONSTACK(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->extra_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->extra_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_wwnn) 676 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn); 677 if (phba->cfg_soft_wwpn) 678 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn); 679 memcpy((uint8_t *) & phba->fc_nodename, 680 (uint8_t *) & phba->fc_sparam.nodeName, 681 sizeof (struct lpfc_name)); 682 memcpy((uint8_t *) & phba->fc_portname, 683 (uint8_t *) & phba->fc_sparam.portName, 684 sizeof (struct lpfc_name)); 685 lpfc_mbuf_free(phba, mp->virt, mp->phys); 686 kfree(mp); 687 mempool_free( pmb, phba->mbox_mem_pool); 688 return; 689 690 out: 691 pmb->context1 = NULL; 692 lpfc_mbuf_free(phba, mp->virt, mp->phys); 693 kfree(mp); 694 if (phba->hba_state != LPFC_CLEAR_LA) { 695 lpfc_clear_la(phba, pmb); 696 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 697 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)) 698 == MBX_NOT_FINISHED) { 699 mempool_free( pmb, phba->mbox_mem_pool); 700 lpfc_disc_flush_list(phba); 701 psli->ring[(psli->extra_ring)].flag &= 702 ~LPFC_STOP_IOCB_EVENT; 703 psli->ring[(psli->fcp_ring)].flag &= 704 ~LPFC_STOP_IOCB_EVENT; 705 psli->ring[(psli->next_ring)].flag &= 706 ~LPFC_STOP_IOCB_EVENT; 707 phba->hba_state = LPFC_HBA_READY; 708 } 709 } else { 710 mempool_free( pmb, phba->mbox_mem_pool); 711 } 712 return; 713 } 714 715 static void 716 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) 717 { 718 int i; 719 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox; 720 struct lpfc_dmabuf *mp; 721 int rc; 722 723 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 724 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 725 726 spin_lock_irq(phba->host->host_lock); 727 switch (la->UlnkSpeed) { 728 case LA_1GHZ_LINK: 729 phba->fc_linkspeed = LA_1GHZ_LINK; 730 break; 731 case LA_2GHZ_LINK: 732 phba->fc_linkspeed = LA_2GHZ_LINK; 733 break; 734 case LA_4GHZ_LINK: 735 phba->fc_linkspeed = LA_4GHZ_LINK; 736 break; 737 default: 738 phba->fc_linkspeed = LA_UNKNW_LINK; 739 break; 740 } 741 742 phba->fc_topology = la->topology; 743 744 if (phba->fc_topology == TOPOLOGY_LOOP) { 745 /* Get Loop Map information */ 746 747 if (la->il) 748 phba->fc_flag |= FC_LBIT; 749 750 phba->fc_myDID = la->granted_AL_PA; 751 i = la->un.lilpBde64.tus.f.bdeSize; 752 753 if (i == 0) { 754 phba->alpa_map[0] = 0; 755 } else { 756 if (phba->cfg_log_verbose & LOG_LINK_EVENT) { 757 int numalpa, j, k; 758 union { 759 uint8_t pamap[16]; 760 struct { 761 uint32_t wd1; 762 uint32_t wd2; 763 uint32_t wd3; 764 uint32_t wd4; 765 } pa; 766 } un; 767 numalpa = phba->alpa_map[0]; 768 j = 0; 769 while (j < numalpa) { 770 memset(un.pamap, 0, 16); 771 for (k = 1; j < numalpa; k++) { 772 un.pamap[k - 1] = 773 phba->alpa_map[j + 1]; 774 j++; 775 if (k == 16) 776 break; 777 } 778 /* Link Up Event ALPA map */ 779 lpfc_printf_log(phba, 780 KERN_WARNING, 781 LOG_LINK_EVENT, 782 "%d:1304 Link Up Event " 783 "ALPA map Data: x%x " 784 "x%x x%x x%x\n", 785 phba->brd_no, 786 un.pa.wd1, un.pa.wd2, 787 un.pa.wd3, un.pa.wd4); 788 } 789 } 790 } 791 } else { 792 phba->fc_myDID = phba->fc_pref_DID; 793 phba->fc_flag |= FC_LBIT; 794 } 795 spin_unlock_irq(phba->host->host_lock); 796 797 lpfc_linkup(phba); 798 if (sparam_mbox) { 799 lpfc_read_sparam(phba, sparam_mbox); 800 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 801 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, 802 (MBX_NOWAIT | MBX_STOP_IOCB)); 803 if (rc == MBX_NOT_FINISHED) { 804 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 805 lpfc_mbuf_free(phba, mp->virt, mp->phys); 806 kfree(mp); 807 mempool_free(sparam_mbox, phba->mbox_mem_pool); 808 if (cfglink_mbox) 809 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 810 return; 811 } 812 } 813 814 if (cfglink_mbox) { 815 phba->hba_state = LPFC_LOCAL_CFG_LINK; 816 lpfc_config_link(phba, cfglink_mbox); 817 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 818 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, 819 (MBX_NOWAIT | MBX_STOP_IOCB)); 820 if (rc == MBX_NOT_FINISHED) 821 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 822 } 823 } 824 825 static void 826 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) { 827 uint32_t control; 828 struct lpfc_sli *psli = &phba->sli; 829 830 lpfc_linkdown(phba); 831 832 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 833 spin_lock_irq(phba->host->host_lock); 834 psli->sli_flag |= LPFC_PROCESS_LA; 835 control = readl(phba->HCregaddr); 836 control |= HC_LAINT_ENA; 837 writel(control, phba->HCregaddr); 838 readl(phba->HCregaddr); /* flush */ 839 spin_unlock_irq(phba->host->host_lock); 840 } 841 842 /* 843 * This routine handles processing a READ_LA mailbox 844 * command upon completion. It is setup in the LPFC_MBOXQ 845 * as the completion routine when the command is 846 * handed off to the SLI layer. 847 */ 848 void 849 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 850 { 851 READ_LA_VAR *la; 852 MAILBOX_t *mb = &pmb->mb; 853 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 854 855 /* Check for error */ 856 if (mb->mbxStatus) { 857 lpfc_printf_log(phba, 858 KERN_INFO, 859 LOG_LINK_EVENT, 860 "%d:1307 READ_LA mbox error x%x state x%x\n", 861 phba->brd_no, 862 mb->mbxStatus, phba->hba_state); 863 lpfc_mbx_issue_link_down(phba); 864 phba->hba_state = LPFC_HBA_ERROR; 865 goto lpfc_mbx_cmpl_read_la_free_mbuf; 866 } 867 868 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA; 869 870 memcpy(&phba->alpa_map[0], mp->virt, 128); 871 872 spin_lock_irq(phba->host->host_lock); 873 if (la->pb) 874 phba->fc_flag |= FC_BYPASSED_MODE; 875 else 876 phba->fc_flag &= ~FC_BYPASSED_MODE; 877 spin_unlock_irq(phba->host->host_lock); 878 879 if (((phba->fc_eventTag + 1) < la->eventTag) || 880 (phba->fc_eventTag == la->eventTag)) { 881 phba->fc_stat.LinkMultiEvent++; 882 if (la->attType == AT_LINK_UP) { 883 if (phba->fc_eventTag != 0) 884 lpfc_linkdown(phba); 885 } 886 } 887 888 phba->fc_eventTag = la->eventTag; 889 890 if (la->attType == AT_LINK_UP) { 891 phba->fc_stat.LinkUp++; 892 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 893 "%d:1303 Link Up Event x%x received " 894 "Data: x%x x%x x%x x%x\n", 895 phba->brd_no, la->eventTag, phba->fc_eventTag, 896 la->granted_AL_PA, la->UlnkSpeed, 897 phba->alpa_map[0]); 898 lpfc_mbx_process_link_up(phba, la); 899 } else { 900 phba->fc_stat.LinkDown++; 901 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 902 "%d:1305 Link Down Event x%x received " 903 "Data: x%x x%x x%x\n", 904 phba->brd_no, la->eventTag, phba->fc_eventTag, 905 phba->hba_state, phba->fc_flag); 906 lpfc_mbx_issue_link_down(phba); 907 } 908 909 lpfc_mbx_cmpl_read_la_free_mbuf: 910 lpfc_mbuf_free(phba, mp->virt, mp->phys); 911 kfree(mp); 912 mempool_free(pmb, phba->mbox_mem_pool); 913 return; 914 } 915 916 /* 917 * This routine handles processing a REG_LOGIN mailbox 918 * command upon completion. It is setup in the LPFC_MBOXQ 919 * as the completion routine when the command is 920 * handed off to the SLI layer. 921 */ 922 void 923 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 924 { 925 struct lpfc_sli *psli; 926 MAILBOX_t *mb; 927 struct lpfc_dmabuf *mp; 928 struct lpfc_nodelist *ndlp; 929 930 psli = &phba->sli; 931 mb = &pmb->mb; 932 933 ndlp = (struct lpfc_nodelist *) pmb->context2; 934 mp = (struct lpfc_dmabuf *) (pmb->context1); 935 936 pmb->context1 = NULL; 937 938 /* Good status, call state machine */ 939 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 940 lpfc_mbuf_free(phba, mp->virt, mp->phys); 941 kfree(mp); 942 mempool_free( pmb, phba->mbox_mem_pool); 943 944 return; 945 } 946 947 /* 948 * This routine handles processing a Fabric REG_LOGIN mailbox 949 * command upon completion. It is setup in the LPFC_MBOXQ 950 * as the completion routine when the command is 951 * handed off to the SLI layer. 952 */ 953 void 954 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 955 { 956 struct lpfc_sli *psli; 957 MAILBOX_t *mb; 958 struct lpfc_dmabuf *mp; 959 struct lpfc_nodelist *ndlp; 960 struct lpfc_nodelist *ndlp_fdmi; 961 962 963 psli = &phba->sli; 964 mb = &pmb->mb; 965 966 ndlp = (struct lpfc_nodelist *) pmb->context2; 967 mp = (struct lpfc_dmabuf *) (pmb->context1); 968 969 if (mb->mbxStatus) { 970 lpfc_mbuf_free(phba, mp->virt, mp->phys); 971 kfree(mp); 972 mempool_free( pmb, phba->mbox_mem_pool); 973 mempool_free( ndlp, phba->nlp_mem_pool); 974 975 /* FLOGI failed, so just use loop map to make discovery list */ 976 lpfc_disc_list_loopmap(phba); 977 978 /* Start discovery */ 979 lpfc_disc_start(phba); 980 return; 981 } 982 983 pmb->context1 = NULL; 984 985 ndlp->nlp_rpi = mb->un.varWords[0]; 986 ndlp->nlp_type |= NLP_FABRIC; 987 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; 988 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); 989 990 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) { 991 /* This NPort has been assigned an NPort_ID by the fabric as a 992 * result of the completed fabric login. Issue a State Change 993 * Registration (SCR) ELS request to the fabric controller 994 * (SCR_DID) so that this NPort gets RSCN events from the 995 * fabric. 996 */ 997 lpfc_issue_els_scr(phba, SCR_DID, 0); 998 999 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID); 1000 if (!ndlp) { 1001 /* Allocate a new node instance. If the pool is empty, 1002 * start the discovery process and skip the Nameserver 1003 * login process. This is attempted again later on. 1004 * Otherwise, issue a Port Login (PLOGI) to NameServer. 1005 */ 1006 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); 1007 if (!ndlp) { 1008 lpfc_disc_start(phba); 1009 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1010 kfree(mp); 1011 mempool_free( pmb, phba->mbox_mem_pool); 1012 return; 1013 } else { 1014 lpfc_nlp_init(phba, ndlp, NameServer_DID); 1015 ndlp->nlp_type |= NLP_FABRIC; 1016 } 1017 } 1018 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; 1019 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); 1020 lpfc_issue_els_plogi(phba, NameServer_DID, 0); 1021 if (phba->cfg_fdmi_on) { 1022 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, 1023 GFP_KERNEL); 1024 if (ndlp_fdmi) { 1025 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID); 1026 ndlp_fdmi->nlp_type |= NLP_FABRIC; 1027 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE; 1028 lpfc_issue_els_plogi(phba, FDMI_DID, 0); 1029 } 1030 } 1031 } 1032 1033 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1034 kfree(mp); 1035 mempool_free( pmb, phba->mbox_mem_pool); 1036 return; 1037 } 1038 1039 /* 1040 * This routine handles processing a NameServer REG_LOGIN mailbox 1041 * command upon completion. It is setup in the LPFC_MBOXQ 1042 * as the completion routine when the command is 1043 * handed off to the SLI layer. 1044 */ 1045 void 1046 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 1047 { 1048 struct lpfc_sli *psli; 1049 MAILBOX_t *mb; 1050 struct lpfc_dmabuf *mp; 1051 struct lpfc_nodelist *ndlp; 1052 1053 psli = &phba->sli; 1054 mb = &pmb->mb; 1055 1056 ndlp = (struct lpfc_nodelist *) pmb->context2; 1057 mp = (struct lpfc_dmabuf *) (pmb->context1); 1058 1059 if (mb->mbxStatus) { 1060 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1061 kfree(mp); 1062 mempool_free( pmb, phba->mbox_mem_pool); 1063 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); 1064 1065 /* RegLogin failed, so just use loop map to make discovery 1066 list */ 1067 lpfc_disc_list_loopmap(phba); 1068 1069 /* Start discovery */ 1070 lpfc_disc_start(phba); 1071 return; 1072 } 1073 1074 pmb->context1 = NULL; 1075 1076 ndlp->nlp_rpi = mb->un.varWords[0]; 1077 ndlp->nlp_type |= NLP_FABRIC; 1078 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; 1079 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); 1080 1081 if (phba->hba_state < LPFC_HBA_READY) { 1082 /* Link up discovery requires Fabrib registration. */ 1083 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID); 1084 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN); 1085 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID); 1086 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID); 1087 } 1088 1089 phba->fc_ns_retry = 0; 1090 /* Good status, issue CT Request to NameServer */ 1091 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) { 1092 /* Cannot issue NameServer Query, so finish up discovery */ 1093 lpfc_disc_start(phba); 1094 } 1095 1096 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1097 kfree(mp); 1098 mempool_free( pmb, phba->mbox_mem_pool); 1099 1100 return; 1101 } 1102 1103 static void 1104 lpfc_register_remote_port(struct lpfc_hba * phba, 1105 struct lpfc_nodelist * ndlp) 1106 { 1107 struct fc_rport *rport; 1108 struct lpfc_rport_data *rdata; 1109 struct fc_rport_identifiers rport_ids; 1110 1111 /* Remote port has reappeared. Re-register w/ FC transport */ 1112 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 1113 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 1114 rport_ids.port_id = ndlp->nlp_DID; 1115 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 1116 1117 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids); 1118 if (!rport) { 1119 dev_printk(KERN_WARNING, &phba->pcidev->dev, 1120 "Warning: fc_remote_port_add failed\n"); 1121 return; 1122 } 1123 1124 /* initialize static port data */ 1125 rport->maxframe_size = ndlp->nlp_maxframe; 1126 rport->supported_classes = ndlp->nlp_class_sup; 1127 rdata = rport->dd_data; 1128 rdata->pnode = ndlp; 1129 1130 if (ndlp->nlp_type & NLP_FCP_TARGET) 1131 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 1132 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1133 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1134 1135 1136 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 1137 fc_remote_port_rolechg(rport, rport_ids.roles); 1138 1139 if ((rport->scsi_target_id != -1) && 1140 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 1141 ndlp->nlp_sid = rport->scsi_target_id; 1142 } 1143 1144 return; 1145 } 1146 1147 static void 1148 lpfc_unregister_remote_port(struct lpfc_hba * phba, 1149 struct lpfc_nodelist * ndlp) 1150 { 1151 struct fc_rport *rport = ndlp->rport; 1152 struct lpfc_rport_data *rdata = rport->dd_data; 1153 1154 if (rport->scsi_target_id == -1) { 1155 ndlp->rport = NULL; 1156 rdata->pnode = NULL; 1157 } 1158 1159 fc_remote_port_delete(rport); 1160 1161 return; 1162 } 1163 1164 int 1165 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list) 1166 { 1167 enum { none, unmapped, mapped } rport_add = none, rport_del = none; 1168 struct lpfc_sli *psli; 1169 1170 psli = &phba->sli; 1171 /* Sanity check to ensure we are not moving to / from the same list */ 1172 if ((nlp->nlp_flag & NLP_LIST_MASK) == list) 1173 if (list != NLP_NO_LIST) 1174 return 0; 1175 1176 spin_lock_irq(phba->host->host_lock); 1177 switch (nlp->nlp_flag & NLP_LIST_MASK) { 1178 case NLP_NO_LIST: /* Not on any list */ 1179 break; 1180 case NLP_UNUSED_LIST: 1181 phba->fc_unused_cnt--; 1182 list_del(&nlp->nlp_listp); 1183 break; 1184 case NLP_PLOGI_LIST: 1185 phba->fc_plogi_cnt--; 1186 list_del(&nlp->nlp_listp); 1187 break; 1188 case NLP_ADISC_LIST: 1189 phba->fc_adisc_cnt--; 1190 list_del(&nlp->nlp_listp); 1191 break; 1192 case NLP_REGLOGIN_LIST: 1193 phba->fc_reglogin_cnt--; 1194 list_del(&nlp->nlp_listp); 1195 break; 1196 case NLP_PRLI_LIST: 1197 phba->fc_prli_cnt--; 1198 list_del(&nlp->nlp_listp); 1199 break; 1200 case NLP_UNMAPPED_LIST: 1201 phba->fc_unmap_cnt--; 1202 list_del(&nlp->nlp_listp); 1203 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 1204 nlp->nlp_type &= ~NLP_FC_NODE; 1205 phba->nport_event_cnt++; 1206 if (nlp->rport) 1207 rport_del = unmapped; 1208 break; 1209 case NLP_MAPPED_LIST: 1210 phba->fc_map_cnt--; 1211 list_del(&nlp->nlp_listp); 1212 phba->nport_event_cnt++; 1213 if (nlp->rport) 1214 rport_del = mapped; 1215 break; 1216 case NLP_NPR_LIST: 1217 phba->fc_npr_cnt--; 1218 list_del(&nlp->nlp_listp); 1219 /* Stop delay tmo if taking node off NPR list */ 1220 if ((nlp->nlp_flag & NLP_DELAY_TMO) && 1221 (list != NLP_NPR_LIST)) { 1222 spin_unlock_irq(phba->host->host_lock); 1223 lpfc_cancel_retry_delay_tmo(phba, nlp); 1224 spin_lock_irq(phba->host->host_lock); 1225 } 1226 break; 1227 } 1228 1229 nlp->nlp_flag &= ~NLP_LIST_MASK; 1230 1231 /* Add NPort <did> to <num> list */ 1232 lpfc_printf_log(phba, 1233 KERN_INFO, 1234 LOG_NODE, 1235 "%d:0904 Add NPort x%x to %d list Data: x%x\n", 1236 phba->brd_no, 1237 nlp->nlp_DID, list, nlp->nlp_flag); 1238 1239 switch (list) { 1240 case NLP_NO_LIST: /* No list, just remove it */ 1241 spin_unlock_irq(phba->host->host_lock); 1242 lpfc_nlp_remove(phba, nlp); 1243 spin_lock_irq(phba->host->host_lock); 1244 /* as node removed - stop further transport calls */ 1245 rport_del = none; 1246 break; 1247 case NLP_UNUSED_LIST: 1248 nlp->nlp_flag |= list; 1249 /* Put it at the end of the unused list */ 1250 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list); 1251 phba->fc_unused_cnt++; 1252 break; 1253 case NLP_PLOGI_LIST: 1254 nlp->nlp_flag |= list; 1255 /* Put it at the end of the plogi list */ 1256 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list); 1257 phba->fc_plogi_cnt++; 1258 break; 1259 case NLP_ADISC_LIST: 1260 nlp->nlp_flag |= list; 1261 /* Put it at the end of the adisc list */ 1262 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list); 1263 phba->fc_adisc_cnt++; 1264 break; 1265 case NLP_REGLOGIN_LIST: 1266 nlp->nlp_flag |= list; 1267 /* Put it at the end of the reglogin list */ 1268 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list); 1269 phba->fc_reglogin_cnt++; 1270 break; 1271 case NLP_PRLI_LIST: 1272 nlp->nlp_flag |= list; 1273 /* Put it at the end of the prli list */ 1274 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list); 1275 phba->fc_prli_cnt++; 1276 break; 1277 case NLP_UNMAPPED_LIST: 1278 rport_add = unmapped; 1279 /* ensure all vestiges of "mapped" significance are gone */ 1280 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1281 nlp->nlp_flag |= list; 1282 /* Put it at the end of the unmap list */ 1283 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list); 1284 phba->fc_unmap_cnt++; 1285 phba->nport_event_cnt++; 1286 nlp->nlp_flag &= ~NLP_NODEV_REMOVE; 1287 nlp->nlp_type |= NLP_FC_NODE; 1288 break; 1289 case NLP_MAPPED_LIST: 1290 rport_add = mapped; 1291 nlp->nlp_flag |= list; 1292 /* Put it at the end of the map list */ 1293 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list); 1294 phba->fc_map_cnt++; 1295 phba->nport_event_cnt++; 1296 nlp->nlp_flag &= ~NLP_NODEV_REMOVE; 1297 break; 1298 case NLP_NPR_LIST: 1299 nlp->nlp_flag |= list; 1300 /* Put it at the end of the npr list */ 1301 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list); 1302 phba->fc_npr_cnt++; 1303 1304 nlp->nlp_flag &= ~NLP_RCV_PLOGI; 1305 break; 1306 case NLP_JUST_DQ: 1307 break; 1308 } 1309 1310 spin_unlock_irq(phba->host->host_lock); 1311 1312 /* 1313 * We make all the calls into the transport after we have 1314 * moved the node between lists. This so that we don't 1315 * release the lock while in-between lists. 1316 */ 1317 1318 /* Don't upcall midlayer if we're unloading */ 1319 if (!(phba->fc_flag & FC_UNLOADING)) { 1320 /* 1321 * We revalidate the rport pointer as the "add" function 1322 * may have removed the remote port. 1323 */ 1324 if ((rport_del != none) && nlp->rport) 1325 lpfc_unregister_remote_port(phba, nlp); 1326 1327 if (rport_add != none) { 1328 /* 1329 * Tell the fc transport about the port, if we haven't 1330 * already. If we have, and it's a scsi entity, be 1331 * sure to unblock any attached scsi devices 1332 */ 1333 if ((!nlp->rport) || (nlp->rport->port_state == 1334 FC_PORTSTATE_BLOCKED)) 1335 lpfc_register_remote_port(phba, nlp); 1336 1337 /* 1338 * if we added to Mapped list, but the remote port 1339 * registration failed or assigned a target id outside 1340 * our presentable range - move the node to the 1341 * Unmapped List 1342 */ 1343 if ((rport_add == mapped) && 1344 ((!nlp->rport) || 1345 (nlp->rport->scsi_target_id == -1) || 1346 (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) { 1347 nlp->nlp_state = NLP_STE_UNMAPPED_NODE; 1348 spin_lock_irq(phba->host->host_lock); 1349 nlp->nlp_flag |= NLP_TGT_NO_SCSIID; 1350 spin_unlock_irq(phba->host->host_lock); 1351 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST); 1352 } 1353 } 1354 } 1355 return 0; 1356 } 1357 1358 /* 1359 * Start / ReStart rescue timer for Discovery / RSCN handling 1360 */ 1361 void 1362 lpfc_set_disctmo(struct lpfc_hba * phba) 1363 { 1364 uint32_t tmo; 1365 1366 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) { 1367 /* For FAN, timeout should be greater then edtov */ 1368 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 1369 } else { 1370 /* Normal discovery timeout should be > then ELS/CT timeout 1371 * FC spec states we need 3 * ratov for CT requests 1372 */ 1373 tmo = ((phba->fc_ratov * 3) + 3); 1374 } 1375 1376 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo); 1377 spin_lock_irq(phba->host->host_lock); 1378 phba->fc_flag |= FC_DISC_TMO; 1379 spin_unlock_irq(phba->host->host_lock); 1380 1381 /* Start Discovery Timer state <hba_state> */ 1382 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, 1383 "%d:0247 Start Discovery Timer state x%x " 1384 "Data: x%x x%lx x%x x%x\n", 1385 phba->brd_no, 1386 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo, 1387 phba->fc_plogi_cnt, phba->fc_adisc_cnt); 1388 1389 return; 1390 } 1391 1392 /* 1393 * Cancel rescue timer for Discovery / RSCN handling 1394 */ 1395 int 1396 lpfc_can_disctmo(struct lpfc_hba * phba) 1397 { 1398 /* Turn off discovery timer if its running */ 1399 if (phba->fc_flag & FC_DISC_TMO) { 1400 spin_lock_irq(phba->host->host_lock); 1401 phba->fc_flag &= ~FC_DISC_TMO; 1402 spin_unlock_irq(phba->host->host_lock); 1403 del_timer_sync(&phba->fc_disctmo); 1404 phba->work_hba_events &= ~WORKER_DISC_TMO; 1405 } 1406 1407 /* Cancel Discovery Timer state <hba_state> */ 1408 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, 1409 "%d:0248 Cancel Discovery Timer state x%x " 1410 "Data: x%x x%x x%x\n", 1411 phba->brd_no, phba->hba_state, phba->fc_flag, 1412 phba->fc_plogi_cnt, phba->fc_adisc_cnt); 1413 1414 return 0; 1415 } 1416 1417 /* 1418 * Check specified ring for outstanding IOCB on the SLI queue 1419 * Return true if iocb matches the specified nport 1420 */ 1421 int 1422 lpfc_check_sli_ndlp(struct lpfc_hba * phba, 1423 struct lpfc_sli_ring * pring, 1424 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp) 1425 { 1426 struct lpfc_sli *psli; 1427 IOCB_t *icmd; 1428 1429 psli = &phba->sli; 1430 icmd = &iocb->iocb; 1431 if (pring->ringno == LPFC_ELS_RING) { 1432 switch (icmd->ulpCommand) { 1433 case CMD_GEN_REQUEST64_CR: 1434 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) 1435 return 1; 1436 case CMD_ELS_REQUEST64_CR: 1437 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 1438 return 1; 1439 case CMD_XMIT_ELS_RSP64_CX: 1440 if (iocb->context1 == (uint8_t *) ndlp) 1441 return 1; 1442 } 1443 } else if (pring->ringno == psli->extra_ring) { 1444 1445 } else if (pring->ringno == psli->fcp_ring) { 1446 /* Skip match check if waiting to relogin to FCP target */ 1447 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 1448 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 1449 return 0; 1450 } 1451 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 1452 return 1; 1453 } 1454 } else if (pring->ringno == psli->next_ring) { 1455 1456 } 1457 return 0; 1458 } 1459 1460 /* 1461 * Free resources / clean up outstanding I/Os 1462 * associated with nlp_rpi in the LPFC_NODELIST entry. 1463 */ 1464 static int 1465 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) 1466 { 1467 struct lpfc_sli *psli; 1468 struct lpfc_sli_ring *pring; 1469 struct lpfc_iocbq *iocb, *next_iocb; 1470 IOCB_t *icmd; 1471 uint32_t rpi, i; 1472 1473 /* 1474 * Everything that matches on txcmplq will be returned 1475 * by firmware with a no rpi error. 1476 */ 1477 psli = &phba->sli; 1478 rpi = ndlp->nlp_rpi; 1479 if (rpi) { 1480 /* Now process each ring */ 1481 for (i = 0; i < psli->num_rings; i++) { 1482 pring = &psli->ring[i]; 1483 1484 spin_lock_irq(phba->host->host_lock); 1485 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 1486 list) { 1487 /* 1488 * Check to see if iocb matches the nport we are 1489 * looking for 1490 */ 1491 if ((lpfc_check_sli_ndlp 1492 (phba, pring, iocb, ndlp))) { 1493 /* It matches, so deque and call compl 1494 with an error */ 1495 list_del(&iocb->list); 1496 pring->txq_cnt--; 1497 if (iocb->iocb_cmpl) { 1498 icmd = &iocb->iocb; 1499 icmd->ulpStatus = 1500 IOSTAT_LOCAL_REJECT; 1501 icmd->un.ulpWord[4] = 1502 IOERR_SLI_ABORTED; 1503 spin_unlock_irq(phba->host-> 1504 host_lock); 1505 (iocb->iocb_cmpl) (phba, 1506 iocb, iocb); 1507 spin_lock_irq(phba->host-> 1508 host_lock); 1509 } else 1510 lpfc_sli_release_iocbq(phba, 1511 iocb); 1512 } 1513 } 1514 spin_unlock_irq(phba->host->host_lock); 1515 1516 } 1517 } 1518 return 0; 1519 } 1520 1521 /* 1522 * Free rpi associated with LPFC_NODELIST entry. 1523 * This routine is called from lpfc_freenode(), when we are removing 1524 * a LPFC_NODELIST entry. It is also called if the driver initiates a 1525 * LOGO that completes successfully, and we are waiting to PLOGI back 1526 * to the remote NPort. In addition, it is called after we receive 1527 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 1528 * we are waiting to PLOGI back to the remote NPort. 1529 */ 1530 int 1531 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) 1532 { 1533 LPFC_MBOXQ_t *mbox; 1534 int rc; 1535 1536 if (ndlp->nlp_rpi) { 1537 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { 1538 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox); 1539 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl; 1540 rc = lpfc_sli_issue_mbox 1541 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); 1542 if (rc == MBX_NOT_FINISHED) 1543 mempool_free( mbox, phba->mbox_mem_pool); 1544 } 1545 lpfc_no_rpi(phba, ndlp); 1546 ndlp->nlp_rpi = 0; 1547 return 1; 1548 } 1549 return 0; 1550 } 1551 1552 /* 1553 * Free resources associated with LPFC_NODELIST entry 1554 * so it can be freed. 1555 */ 1556 static int 1557 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) 1558 { 1559 LPFC_MBOXQ_t *mb; 1560 LPFC_MBOXQ_t *nextmb; 1561 struct lpfc_dmabuf *mp; 1562 1563 /* Cleanup node for NPort <nlp_DID> */ 1564 lpfc_printf_log(phba, KERN_INFO, LOG_NODE, 1565 "%d:0900 Cleanup node for NPort x%x " 1566 "Data: x%x x%x x%x\n", 1567 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, 1568 ndlp->nlp_state, ndlp->nlp_rpi); 1569 1570 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ); 1571 1572 /* 1573 * if unloading the driver - just leave the remote port in place. 1574 * The driver unload will force the attached devices to detach 1575 * and flush cache's w/o generating flush errors. 1576 */ 1577 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) { 1578 lpfc_unregister_remote_port(phba, ndlp); 1579 ndlp->nlp_sid = NLP_NO_SID; 1580 } 1581 1582 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1583 if ((mb = phba->sli.mbox_active)) { 1584 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && 1585 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1586 mb->context2 = NULL; 1587 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1588 } 1589 } 1590 1591 spin_lock_irq(phba->host->host_lock); 1592 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1593 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && 1594 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1595 mp = (struct lpfc_dmabuf *) (mb->context1); 1596 if (mp) { 1597 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1598 kfree(mp); 1599 } 1600 list_del(&mb->list); 1601 mempool_free(mb, phba->mbox_mem_pool); 1602 } 1603 } 1604 spin_unlock_irq(phba->host->host_lock); 1605 1606 lpfc_els_abort(phba,ndlp,0); 1607 spin_lock_irq(phba->host->host_lock); 1608 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 1609 spin_unlock_irq(phba->host->host_lock); 1610 1611 ndlp->nlp_last_elscmd = 0; 1612 del_timer_sync(&ndlp->nlp_delayfunc); 1613 1614 if (!list_empty(&ndlp->els_retry_evt.evt_listp)) 1615 list_del_init(&ndlp->els_retry_evt.evt_listp); 1616 1617 lpfc_unreg_rpi(phba, ndlp); 1618 1619 return 0; 1620 } 1621 1622 /* 1623 * Check to see if we can free the nlp back to the freelist. 1624 * If we are in the middle of using the nlp in the discovery state 1625 * machine, defer the free till we reach the end of the state machine. 1626 */ 1627 int 1628 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) 1629 { 1630 1631 if (ndlp->nlp_flag & NLP_DELAY_TMO) { 1632 lpfc_cancel_retry_delay_tmo(phba, ndlp); 1633 } 1634 1635 if (ndlp->nlp_disc_refcnt) { 1636 spin_lock_irq(phba->host->host_lock); 1637 ndlp->nlp_flag |= NLP_DELAY_REMOVE; 1638 spin_unlock_irq(phba->host->host_lock); 1639 } else { 1640 lpfc_freenode(phba, ndlp); 1641 mempool_free( ndlp, phba->nlp_mem_pool); 1642 } 1643 return 0; 1644 } 1645 1646 static int 1647 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did) 1648 { 1649 D_ID mydid; 1650 D_ID ndlpdid; 1651 D_ID matchdid; 1652 1653 if (did == Bcast_DID) 1654 return 0; 1655 1656 if (ndlp->nlp_DID == 0) { 1657 return 0; 1658 } 1659 1660 /* First check for Direct match */ 1661 if (ndlp->nlp_DID == did) 1662 return 1; 1663 1664 /* Next check for area/domain identically equals 0 match */ 1665 mydid.un.word = phba->fc_myDID; 1666 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 1667 return 0; 1668 } 1669 1670 matchdid.un.word = did; 1671 ndlpdid.un.word = ndlp->nlp_DID; 1672 if (matchdid.un.b.id == ndlpdid.un.b.id) { 1673 if ((mydid.un.b.domain == matchdid.un.b.domain) && 1674 (mydid.un.b.area == matchdid.un.b.area)) { 1675 if ((ndlpdid.un.b.domain == 0) && 1676 (ndlpdid.un.b.area == 0)) { 1677 if (ndlpdid.un.b.id) 1678 return 1; 1679 } 1680 return 0; 1681 } 1682 1683 matchdid.un.word = ndlp->nlp_DID; 1684 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 1685 (mydid.un.b.area == ndlpdid.un.b.area)) { 1686 if ((matchdid.un.b.domain == 0) && 1687 (matchdid.un.b.area == 0)) { 1688 if (matchdid.un.b.id) 1689 return 1; 1690 } 1691 } 1692 } 1693 return 0; 1694 } 1695 1696 /* Search for a nodelist entry on a specific list */ 1697 struct lpfc_nodelist * 1698 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) 1699 { 1700 struct lpfc_nodelist *ndlp; 1701 struct list_head *lists[]={&phba->fc_nlpunmap_list, 1702 &phba->fc_nlpmap_list, 1703 &phba->fc_plogi_list, 1704 &phba->fc_adisc_list, 1705 &phba->fc_reglogin_list, 1706 &phba->fc_prli_list, 1707 &phba->fc_npr_list, 1708 &phba->fc_unused_list}; 1709 uint32_t search[]={NLP_SEARCH_UNMAPPED, 1710 NLP_SEARCH_MAPPED, 1711 NLP_SEARCH_PLOGI, 1712 NLP_SEARCH_ADISC, 1713 NLP_SEARCH_REGLOGIN, 1714 NLP_SEARCH_PRLI, 1715 NLP_SEARCH_NPR, 1716 NLP_SEARCH_UNUSED}; 1717 int i; 1718 uint32_t data1; 1719 1720 spin_lock_irq(phba->host->host_lock); 1721 for (i = 0; i < ARRAY_SIZE(lists); i++ ) { 1722 if (!(order & search[i])) 1723 continue; 1724 list_for_each_entry(ndlp, lists[i], nlp_listp) { 1725 if (lpfc_matchdid(phba, ndlp, did)) { 1726 data1 = (((uint32_t) ndlp->nlp_state << 24) | 1727 ((uint32_t) ndlp->nlp_xri << 16) | 1728 ((uint32_t) ndlp->nlp_type << 8) | 1729 ((uint32_t) ndlp->nlp_rpi & 0xff)); 1730 lpfc_printf_log(phba, KERN_INFO, LOG_NODE, 1731 "%d:0929 FIND node DID " 1732 " Data: x%p x%x x%x x%x\n", 1733 phba->brd_no, 1734 ndlp, ndlp->nlp_DID, 1735 ndlp->nlp_flag, data1); 1736 spin_unlock_irq(phba->host->host_lock); 1737 return ndlp; 1738 } 1739 } 1740 } 1741 spin_unlock_irq(phba->host->host_lock); 1742 1743 /* FIND node did <did> NOT FOUND */ 1744 lpfc_printf_log(phba, KERN_INFO, LOG_NODE, 1745 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n", 1746 phba->brd_no, did, order); 1747 return NULL; 1748 } 1749 1750 struct lpfc_nodelist * 1751 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did) 1752 { 1753 struct lpfc_nodelist *ndlp; 1754 uint32_t flg; 1755 1756 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did); 1757 if (!ndlp) { 1758 if ((phba->fc_flag & FC_RSCN_MODE) && 1759 ((lpfc_rscn_payload_check(phba, did) == 0))) 1760 return NULL; 1761 ndlp = (struct lpfc_nodelist *) 1762 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 1763 if (!ndlp) 1764 return NULL; 1765 lpfc_nlp_init(phba, ndlp, did); 1766 ndlp->nlp_state = NLP_STE_NPR_NODE; 1767 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); 1768 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 1769 return ndlp; 1770 } 1771 if (phba->fc_flag & FC_RSCN_MODE) { 1772 if (lpfc_rscn_payload_check(phba, did)) { 1773 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 1774 1775 /* Since this node is marked for discovery, 1776 * delay timeout is not needed. 1777 */ 1778 if (ndlp->nlp_flag & NLP_DELAY_TMO) 1779 lpfc_cancel_retry_delay_tmo(phba, ndlp); 1780 } else 1781 ndlp = NULL; 1782 } else { 1783 flg = ndlp->nlp_flag & NLP_LIST_MASK; 1784 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST)) 1785 return NULL; 1786 ndlp->nlp_state = NLP_STE_NPR_NODE; 1787 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); 1788 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 1789 } 1790 return ndlp; 1791 } 1792 1793 /* Build a list of nodes to discover based on the loopmap */ 1794 void 1795 lpfc_disc_list_loopmap(struct lpfc_hba * phba) 1796 { 1797 int j; 1798 uint32_t alpa, index; 1799 1800 if (phba->hba_state <= LPFC_LINK_DOWN) { 1801 return; 1802 } 1803 if (phba->fc_topology != TOPOLOGY_LOOP) { 1804 return; 1805 } 1806 1807 /* Check for loop map present or not */ 1808 if (phba->alpa_map[0]) { 1809 for (j = 1; j <= phba->alpa_map[0]; j++) { 1810 alpa = phba->alpa_map[j]; 1811 1812 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) { 1813 continue; 1814 } 1815 lpfc_setup_disc_node(phba, alpa); 1816 } 1817 } else { 1818 /* No alpamap, so try all alpa's */ 1819 for (j = 0; j < FC_MAXLOOP; j++) { 1820 /* If cfg_scan_down is set, start from highest 1821 * ALPA (0xef) to lowest (0x1). 1822 */ 1823 if (phba->cfg_scan_down) 1824 index = j; 1825 else 1826 index = FC_MAXLOOP - j - 1; 1827 alpa = lpfcAlpaArray[index]; 1828 if ((phba->fc_myDID & 0xff) == alpa) { 1829 continue; 1830 } 1831 1832 lpfc_setup_disc_node(phba, alpa); 1833 } 1834 } 1835 return; 1836 } 1837 1838 /* Start Link up / RSCN discovery on NPR list */ 1839 void 1840 lpfc_disc_start(struct lpfc_hba * phba) 1841 { 1842 struct lpfc_sli *psli; 1843 LPFC_MBOXQ_t *mbox; 1844 struct lpfc_nodelist *ndlp, *next_ndlp; 1845 uint32_t did_changed, num_sent; 1846 uint32_t clear_la_pending; 1847 int rc; 1848 1849 psli = &phba->sli; 1850 1851 if (phba->hba_state <= LPFC_LINK_DOWN) { 1852 return; 1853 } 1854 if (phba->hba_state == LPFC_CLEAR_LA) 1855 clear_la_pending = 1; 1856 else 1857 clear_la_pending = 0; 1858 1859 if (phba->hba_state < LPFC_HBA_READY) { 1860 phba->hba_state = LPFC_DISC_AUTH; 1861 } 1862 lpfc_set_disctmo(phba); 1863 1864 if (phba->fc_prevDID == phba->fc_myDID) { 1865 did_changed = 0; 1866 } else { 1867 did_changed = 1; 1868 } 1869 phba->fc_prevDID = phba->fc_myDID; 1870 phba->num_disc_nodes = 0; 1871 1872 /* Start Discovery state <hba_state> */ 1873 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, 1874 "%d:0202 Start Discovery hba state x%x " 1875 "Data: x%x x%x x%x\n", 1876 phba->brd_no, phba->hba_state, phba->fc_flag, 1877 phba->fc_plogi_cnt, phba->fc_adisc_cnt); 1878 1879 /* If our did changed, we MUST do PLOGI */ 1880 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, 1881 nlp_listp) { 1882 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1883 if (did_changed) { 1884 spin_lock_irq(phba->host->host_lock); 1885 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1886 spin_unlock_irq(phba->host->host_lock); 1887 } 1888 } 1889 } 1890 1891 /* First do ADISCs - if any */ 1892 num_sent = lpfc_els_disc_adisc(phba); 1893 1894 if (num_sent) 1895 return; 1896 1897 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) { 1898 /* If we get here, there is nothing to ADISC */ 1899 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { 1900 phba->hba_state = LPFC_CLEAR_LA; 1901 lpfc_clear_la(phba, mbox); 1902 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 1903 rc = lpfc_sli_issue_mbox(phba, mbox, 1904 (MBX_NOWAIT | MBX_STOP_IOCB)); 1905 if (rc == MBX_NOT_FINISHED) { 1906 mempool_free( mbox, phba->mbox_mem_pool); 1907 lpfc_disc_flush_list(phba); 1908 psli->ring[(psli->extra_ring)].flag &= 1909 ~LPFC_STOP_IOCB_EVENT; 1910 psli->ring[(psli->fcp_ring)].flag &= 1911 ~LPFC_STOP_IOCB_EVENT; 1912 psli->ring[(psli->next_ring)].flag &= 1913 ~LPFC_STOP_IOCB_EVENT; 1914 phba->hba_state = LPFC_HBA_READY; 1915 } 1916 } 1917 } else { 1918 /* Next do PLOGIs - if any */ 1919 num_sent = lpfc_els_disc_plogi(phba); 1920 1921 if (num_sent) 1922 return; 1923 1924 if (phba->fc_flag & FC_RSCN_MODE) { 1925 /* Check to see if more RSCNs came in while we 1926 * were processing this one. 1927 */ 1928 if ((phba->fc_rscn_id_cnt == 0) && 1929 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { 1930 spin_lock_irq(phba->host->host_lock); 1931 phba->fc_flag &= ~FC_RSCN_MODE; 1932 spin_unlock_irq(phba->host->host_lock); 1933 } else 1934 lpfc_els_handle_rscn(phba); 1935 } 1936 } 1937 return; 1938 } 1939 1940 /* 1941 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 1942 * ring the match the sppecified nodelist. 1943 */ 1944 static void 1945 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) 1946 { 1947 struct lpfc_sli *psli; 1948 IOCB_t *icmd; 1949 struct lpfc_iocbq *iocb, *next_iocb; 1950 struct lpfc_sli_ring *pring; 1951 struct lpfc_dmabuf *mp; 1952 1953 psli = &phba->sli; 1954 pring = &psli->ring[LPFC_ELS_RING]; 1955 1956 /* Error matching iocb on txq or txcmplq 1957 * First check the txq. 1958 */ 1959 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 1960 if (iocb->context1 != ndlp) { 1961 continue; 1962 } 1963 icmd = &iocb->iocb; 1964 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 1965 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 1966 1967 list_del(&iocb->list); 1968 pring->txq_cnt--; 1969 lpfc_els_free_iocb(phba, iocb); 1970 } 1971 } 1972 1973 /* Next check the txcmplq */ 1974 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 1975 if (iocb->context1 != ndlp) { 1976 continue; 1977 } 1978 icmd = &iocb->iocb; 1979 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 1980 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 1981 1982 iocb->iocb_cmpl = NULL; 1983 /* context2 = cmd, context2->next = rsp, context3 = 1984 bpl */ 1985 if (iocb->context2) { 1986 /* Free the response IOCB before handling the 1987 command. */ 1988 1989 mp = (struct lpfc_dmabuf *) (iocb->context2); 1990 mp = list_get_first(&mp->list, 1991 struct lpfc_dmabuf, 1992 list); 1993 if (mp) { 1994 /* Delay before releasing rsp buffer to 1995 * give UNREG mbox a chance to take 1996 * effect. 1997 */ 1998 list_add(&mp->list, 1999 &phba->freebufList); 2000 } 2001 lpfc_mbuf_free(phba, 2002 ((struct lpfc_dmabuf *) 2003 iocb->context2)->virt, 2004 ((struct lpfc_dmabuf *) 2005 iocb->context2)->phys); 2006 kfree(iocb->context2); 2007 } 2008 2009 if (iocb->context3) { 2010 lpfc_mbuf_free(phba, 2011 ((struct lpfc_dmabuf *) 2012 iocb->context3)->virt, 2013 ((struct lpfc_dmabuf *) 2014 iocb->context3)->phys); 2015 kfree(iocb->context3); 2016 } 2017 } 2018 } 2019 2020 return; 2021 } 2022 2023 void 2024 lpfc_disc_flush_list(struct lpfc_hba * phba) 2025 { 2026 struct lpfc_nodelist *ndlp, *next_ndlp; 2027 2028 if (phba->fc_plogi_cnt) { 2029 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list, 2030 nlp_listp) { 2031 lpfc_free_tx(phba, ndlp); 2032 lpfc_nlp_remove(phba, ndlp); 2033 } 2034 } 2035 if (phba->fc_adisc_cnt) { 2036 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, 2037 nlp_listp) { 2038 lpfc_free_tx(phba, ndlp); 2039 lpfc_nlp_remove(phba, ndlp); 2040 } 2041 } 2042 return; 2043 } 2044 2045 /*****************************************************************************/ 2046 /* 2047 * NAME: lpfc_disc_timeout 2048 * 2049 * FUNCTION: Fibre Channel driver discovery timeout routine. 2050 * 2051 * EXECUTION ENVIRONMENT: interrupt only 2052 * 2053 * CALLED FROM: 2054 * Timer function 2055 * 2056 * RETURNS: 2057 * none 2058 */ 2059 /*****************************************************************************/ 2060 void 2061 lpfc_disc_timeout(unsigned long ptr) 2062 { 2063 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2064 unsigned long flags = 0; 2065 2066 if (unlikely(!phba)) 2067 return; 2068 2069 spin_lock_irqsave(phba->host->host_lock, flags); 2070 if (!(phba->work_hba_events & WORKER_DISC_TMO)) { 2071 phba->work_hba_events |= WORKER_DISC_TMO; 2072 if (phba->work_wait) 2073 wake_up(phba->work_wait); 2074 } 2075 spin_unlock_irqrestore(phba->host->host_lock, flags); 2076 return; 2077 } 2078 2079 static void 2080 lpfc_disc_timeout_handler(struct lpfc_hba *phba) 2081 { 2082 struct lpfc_sli *psli; 2083 struct lpfc_nodelist *ndlp, *next_ndlp; 2084 LPFC_MBOXQ_t *clearlambox, *initlinkmbox; 2085 int rc, clrlaerr = 0; 2086 2087 if (unlikely(!phba)) 2088 return; 2089 2090 if (!(phba->fc_flag & FC_DISC_TMO)) 2091 return; 2092 2093 psli = &phba->sli; 2094 2095 spin_lock_irq(phba->host->host_lock); 2096 phba->fc_flag &= ~FC_DISC_TMO; 2097 spin_unlock_irq(phba->host->host_lock); 2098 2099 switch (phba->hba_state) { 2100 2101 case LPFC_LOCAL_CFG_LINK: 2102 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */ 2103 /* FAN timeout */ 2104 lpfc_printf_log(phba, 2105 KERN_WARNING, 2106 LOG_DISCOVERY, 2107 "%d:0221 FAN timeout\n", 2108 phba->brd_no); 2109 2110 /* Start discovery by sending FLOGI, clean up old rpis */ 2111 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, 2112 nlp_listp) { 2113 if (ndlp->nlp_type & NLP_FABRIC) { 2114 /* Clean up the ndlp on Fabric connections */ 2115 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); 2116 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 2117 /* Fail outstanding IO now since device 2118 * is marked for PLOGI. 2119 */ 2120 lpfc_unreg_rpi(phba, ndlp); 2121 } 2122 } 2123 phba->hba_state = LPFC_FLOGI; 2124 lpfc_set_disctmo(phba); 2125 lpfc_initial_flogi(phba); 2126 break; 2127 2128 case LPFC_FLOGI: 2129 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 2130 /* Initial FLOGI timeout */ 2131 lpfc_printf_log(phba, 2132 KERN_ERR, 2133 LOG_DISCOVERY, 2134 "%d:0222 Initial FLOGI timeout\n", 2135 phba->brd_no); 2136 2137 /* Assume no Fabric and go on with discovery. 2138 * Check for outstanding ELS FLOGI to abort. 2139 */ 2140 2141 /* FLOGI failed, so just use loop map to make discovery list */ 2142 lpfc_disc_list_loopmap(phba); 2143 2144 /* Start discovery */ 2145 lpfc_disc_start(phba); 2146 break; 2147 2148 case LPFC_FABRIC_CFG_LINK: 2149 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 2150 NameServer login */ 2151 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2152 "%d:0223 Timeout while waiting for NameServer " 2153 "login\n", phba->brd_no); 2154 2155 /* Next look for NameServer ndlp */ 2156 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID); 2157 if (ndlp) 2158 lpfc_nlp_remove(phba, ndlp); 2159 /* Start discovery */ 2160 lpfc_disc_start(phba); 2161 break; 2162 2163 case LPFC_NS_QRY: 2164 /* Check for wait for NameServer Rsp timeout */ 2165 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2166 "%d:0224 NameServer Query timeout " 2167 "Data: x%x x%x\n", 2168 phba->brd_no, 2169 phba->fc_ns_retry, LPFC_MAX_NS_RETRY); 2170 2171 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, 2172 NameServer_DID); 2173 if (ndlp) { 2174 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) { 2175 /* Try it one more time */ 2176 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT); 2177 if (rc == 0) 2178 break; 2179 } 2180 phba->fc_ns_retry = 0; 2181 } 2182 2183 /* Nothing to authenticate, so CLEAR_LA right now */ 2184 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2185 if (!clearlambox) { 2186 clrlaerr = 1; 2187 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2188 "%d:0226 Device Discovery " 2189 "completion error\n", 2190 phba->brd_no); 2191 phba->hba_state = LPFC_HBA_ERROR; 2192 break; 2193 } 2194 2195 phba->hba_state = LPFC_CLEAR_LA; 2196 lpfc_clear_la(phba, clearlambox); 2197 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 2198 rc = lpfc_sli_issue_mbox(phba, clearlambox, 2199 (MBX_NOWAIT | MBX_STOP_IOCB)); 2200 if (rc == MBX_NOT_FINISHED) { 2201 mempool_free(clearlambox, phba->mbox_mem_pool); 2202 clrlaerr = 1; 2203 break; 2204 } 2205 2206 /* Setup and issue mailbox INITIALIZE LINK command */ 2207 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2208 if (!initlinkmbox) { 2209 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2210 "%d:0206 Device Discovery " 2211 "completion error\n", 2212 phba->brd_no); 2213 phba->hba_state = LPFC_HBA_ERROR; 2214 break; 2215 } 2216 2217 lpfc_linkdown(phba); 2218 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 2219 phba->cfg_link_speed); 2220 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0; 2221 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, 2222 (MBX_NOWAIT | MBX_STOP_IOCB)); 2223 if (rc == MBX_NOT_FINISHED) 2224 mempool_free(initlinkmbox, phba->mbox_mem_pool); 2225 2226 break; 2227 2228 case LPFC_DISC_AUTH: 2229 /* Node Authentication timeout */ 2230 lpfc_printf_log(phba, 2231 KERN_ERR, 2232 LOG_DISCOVERY, 2233 "%d:0227 Node Authentication timeout\n", 2234 phba->brd_no); 2235 lpfc_disc_flush_list(phba); 2236 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2237 if (!clearlambox) { 2238 clrlaerr = 1; 2239 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2240 "%d:0207 Device Discovery " 2241 "completion error\n", 2242 phba->brd_no); 2243 phba->hba_state = LPFC_HBA_ERROR; 2244 break; 2245 } 2246 phba->hba_state = LPFC_CLEAR_LA; 2247 lpfc_clear_la(phba, clearlambox); 2248 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 2249 rc = lpfc_sli_issue_mbox(phba, clearlambox, 2250 (MBX_NOWAIT | MBX_STOP_IOCB)); 2251 if (rc == MBX_NOT_FINISHED) { 2252 mempool_free(clearlambox, phba->mbox_mem_pool); 2253 clrlaerr = 1; 2254 } 2255 break; 2256 2257 case LPFC_CLEAR_LA: 2258 /* CLEAR LA timeout */ 2259 lpfc_printf_log(phba, 2260 KERN_ERR, 2261 LOG_DISCOVERY, 2262 "%d:0228 CLEAR LA timeout\n", 2263 phba->brd_no); 2264 clrlaerr = 1; 2265 break; 2266 2267 case LPFC_HBA_READY: 2268 if (phba->fc_flag & FC_RSCN_MODE) { 2269 lpfc_printf_log(phba, 2270 KERN_ERR, 2271 LOG_DISCOVERY, 2272 "%d:0231 RSCN timeout Data: x%x x%x\n", 2273 phba->brd_no, 2274 phba->fc_ns_retry, LPFC_MAX_NS_RETRY); 2275 2276 /* Cleanup any outstanding ELS commands */ 2277 lpfc_els_flush_cmd(phba); 2278 2279 lpfc_els_flush_rscn(phba); 2280 lpfc_disc_flush_list(phba); 2281 } 2282 break; 2283 } 2284 2285 if (clrlaerr) { 2286 lpfc_disc_flush_list(phba); 2287 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 2288 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 2289 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 2290 phba->hba_state = LPFC_HBA_READY; 2291 } 2292 2293 return; 2294 } 2295 2296 /* 2297 * This routine handles processing a NameServer REG_LOGIN mailbox 2298 * command upon completion. It is setup in the LPFC_MBOXQ 2299 * as the completion routine when the command is 2300 * handed off to the SLI layer. 2301 */ 2302 void 2303 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 2304 { 2305 struct lpfc_sli *psli; 2306 MAILBOX_t *mb; 2307 struct lpfc_dmabuf *mp; 2308 struct lpfc_nodelist *ndlp; 2309 2310 psli = &phba->sli; 2311 mb = &pmb->mb; 2312 2313 ndlp = (struct lpfc_nodelist *) pmb->context2; 2314 mp = (struct lpfc_dmabuf *) (pmb->context1); 2315 2316 pmb->context1 = NULL; 2317 2318 ndlp->nlp_rpi = mb->un.varWords[0]; 2319 ndlp->nlp_type |= NLP_FABRIC; 2320 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; 2321 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); 2322 2323 /* Start issuing Fabric-Device Management Interface (FDMI) 2324 * command to 0xfffffa (FDMI well known port) 2325 */ 2326 if (phba->cfg_fdmi_on == 1) { 2327 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA); 2328 } else { 2329 /* 2330 * Delay issuing FDMI command if fdmi-on=2 2331 * (supporting RPA/hostnmae) 2332 */ 2333 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60); 2334 } 2335 2336 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2337 kfree(mp); 2338 mempool_free( pmb, phba->mbox_mem_pool); 2339 2340 return; 2341 } 2342 2343 /* 2344 * This routine looks up the ndlp lists 2345 * for the given RPI. If rpi found 2346 * it return the node list pointer 2347 * else return NULL. 2348 */ 2349 struct lpfc_nodelist * 2350 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi) 2351 { 2352 struct lpfc_nodelist *ndlp; 2353 struct list_head * lists[]={&phba->fc_nlpunmap_list, 2354 &phba->fc_nlpmap_list, 2355 &phba->fc_plogi_list, 2356 &phba->fc_adisc_list, 2357 &phba->fc_reglogin_list}; 2358 int i; 2359 2360 spin_lock_irq(phba->host->host_lock); 2361 for (i = 0; i < ARRAY_SIZE(lists); i++ ) 2362 list_for_each_entry(ndlp, lists[i], nlp_listp) 2363 if (ndlp->nlp_rpi == rpi) { 2364 spin_unlock_irq(phba->host->host_lock); 2365 return ndlp; 2366 } 2367 spin_unlock_irq(phba->host->host_lock); 2368 return NULL; 2369 } 2370 2371 /* 2372 * This routine looks up the ndlp lists 2373 * for the given WWPN. If WWPN found 2374 * it return the node list pointer 2375 * else return NULL. 2376 */ 2377 struct lpfc_nodelist * 2378 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order, 2379 struct lpfc_name * wwpn) 2380 { 2381 struct lpfc_nodelist *ndlp; 2382 struct list_head * lists[]={&phba->fc_nlpunmap_list, 2383 &phba->fc_nlpmap_list, 2384 &phba->fc_npr_list, 2385 &phba->fc_plogi_list, 2386 &phba->fc_adisc_list, 2387 &phba->fc_reglogin_list, 2388 &phba->fc_prli_list}; 2389 uint32_t search[]={NLP_SEARCH_UNMAPPED, 2390 NLP_SEARCH_MAPPED, 2391 NLP_SEARCH_NPR, 2392 NLP_SEARCH_PLOGI, 2393 NLP_SEARCH_ADISC, 2394 NLP_SEARCH_REGLOGIN, 2395 NLP_SEARCH_PRLI}; 2396 int i; 2397 2398 spin_lock_irq(phba->host->host_lock); 2399 for (i = 0; i < ARRAY_SIZE(lists); i++ ) { 2400 if (!(order & search[i])) 2401 continue; 2402 list_for_each_entry(ndlp, lists[i], nlp_listp) { 2403 if (memcmp(&ndlp->nlp_portname, wwpn, 2404 sizeof(struct lpfc_name)) == 0) { 2405 spin_unlock_irq(phba->host->host_lock); 2406 return ndlp; 2407 } 2408 } 2409 } 2410 spin_unlock_irq(phba->host->host_lock); 2411 return NULL; 2412 } 2413 2414 void 2415 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, 2416 uint32_t did) 2417 { 2418 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 2419 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 2420 init_timer(&ndlp->nlp_delayfunc); 2421 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 2422 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 2423 ndlp->nlp_DID = did; 2424 ndlp->nlp_phba = phba; 2425 ndlp->nlp_sid = NLP_NO_SID; 2426 return; 2427 } 2428