1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 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_hw4.h" 33 #include "lpfc_hw.h" 34 #include "lpfc_nl.h" 35 #include "lpfc_disc.h" 36 #include "lpfc_sli.h" 37 #include "lpfc_sli4.h" 38 #include "lpfc_scsi.h" 39 #include "lpfc.h" 40 #include "lpfc_logmsg.h" 41 #include "lpfc_crtn.h" 42 #include "lpfc_vport.h" 43 #include "lpfc_debugfs.h" 44 45 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 46 static uint8_t lpfcAlpaArray[] = { 47 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 48 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 49 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 50 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 51 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 52 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 53 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 54 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 55 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 56 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 57 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 58 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 59 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 60 }; 61 62 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 63 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 64 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 65 66 void 67 lpfc_terminate_rport_io(struct fc_rport *rport) 68 { 69 struct lpfc_rport_data *rdata; 70 struct lpfc_nodelist * ndlp; 71 struct lpfc_hba *phba; 72 73 rdata = rport->dd_data; 74 ndlp = rdata->pnode; 75 76 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 77 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 78 printk(KERN_ERR "Cannot find remote node" 79 " to terminate I/O Data x%x\n", 80 rport->port_id); 81 return; 82 } 83 84 phba = ndlp->phba; 85 86 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 87 "rport terminate: sid:x%x did:x%x flg:x%x", 88 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 89 90 if (ndlp->nlp_sid != NLP_NO_SID) { 91 lpfc_sli_abort_iocb(ndlp->vport, 92 &phba->sli.ring[phba->sli.fcp_ring], 93 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 94 } 95 } 96 97 /* 98 * This function will be called when dev_loss_tmo fire. 99 */ 100 void 101 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 102 { 103 struct lpfc_rport_data *rdata; 104 struct lpfc_nodelist * ndlp; 105 struct lpfc_vport *vport; 106 struct lpfc_hba *phba; 107 struct lpfc_work_evt *evtp; 108 int put_node; 109 int put_rport; 110 111 rdata = rport->dd_data; 112 ndlp = rdata->pnode; 113 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 114 return; 115 116 vport = ndlp->vport; 117 phba = vport->phba; 118 119 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 120 "rport devlosscb: sid:x%x did:x%x flg:x%x", 121 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 122 123 /* Don't defer this if we are in the process of deleting the vport 124 * or unloading the driver. The unload will cleanup the node 125 * appropriately we just need to cleanup the ndlp rport info here. 126 */ 127 if (vport->load_flag & FC_UNLOADING) { 128 put_node = rdata->pnode != NULL; 129 put_rport = ndlp->rport != NULL; 130 rdata->pnode = NULL; 131 ndlp->rport = NULL; 132 if (put_node) 133 lpfc_nlp_put(ndlp); 134 if (put_rport) 135 put_device(&rport->dev); 136 return; 137 } 138 139 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 140 return; 141 142 evtp = &ndlp->dev_loss_evt; 143 144 if (!list_empty(&evtp->evt_listp)) 145 return; 146 147 spin_lock_irq(&phba->hbalock); 148 /* We need to hold the node by incrementing the reference 149 * count until this queued work is done 150 */ 151 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 152 if (evtp->evt_arg1) { 153 evtp->evt = LPFC_EVT_DEV_LOSS; 154 list_add_tail(&evtp->evt_listp, &phba->work_list); 155 lpfc_worker_wake_up(phba); 156 } 157 spin_unlock_irq(&phba->hbalock); 158 159 return; 160 } 161 162 /* 163 * This function is called from the worker thread when dev_loss_tmo 164 * expire. 165 */ 166 static void 167 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 168 { 169 struct lpfc_rport_data *rdata; 170 struct fc_rport *rport; 171 struct lpfc_vport *vport; 172 struct lpfc_hba *phba; 173 uint8_t *name; 174 int put_node; 175 int put_rport; 176 int warn_on = 0; 177 178 rport = ndlp->rport; 179 180 if (!rport) 181 return; 182 183 rdata = rport->dd_data; 184 name = (uint8_t *) &ndlp->nlp_portname; 185 vport = ndlp->vport; 186 phba = vport->phba; 187 188 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 189 "rport devlosstmo:did:x%x type:x%x id:x%x", 190 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 191 192 /* Don't defer this if we are in the process of deleting the vport 193 * or unloading the driver. The unload will cleanup the node 194 * appropriately we just need to cleanup the ndlp rport info here. 195 */ 196 if (vport->load_flag & FC_UNLOADING) { 197 if (ndlp->nlp_sid != NLP_NO_SID) { 198 /* flush the target */ 199 lpfc_sli_abort_iocb(vport, 200 &phba->sli.ring[phba->sli.fcp_ring], 201 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 202 } 203 put_node = rdata->pnode != NULL; 204 put_rport = ndlp->rport != NULL; 205 rdata->pnode = NULL; 206 ndlp->rport = NULL; 207 if (put_node) 208 lpfc_nlp_put(ndlp); 209 if (put_rport) 210 put_device(&rport->dev); 211 return; 212 } 213 214 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 215 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 216 "0284 Devloss timeout Ignored on " 217 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 218 "NPort x%x\n", 219 *name, *(name+1), *(name+2), *(name+3), 220 *(name+4), *(name+5), *(name+6), *(name+7), 221 ndlp->nlp_DID); 222 return; 223 } 224 225 if (ndlp->nlp_type & NLP_FABRIC) { 226 /* We will clean up these Nodes in linkup */ 227 put_node = rdata->pnode != NULL; 228 put_rport = ndlp->rport != NULL; 229 rdata->pnode = NULL; 230 ndlp->rport = NULL; 231 if (put_node) 232 lpfc_nlp_put(ndlp); 233 if (put_rport) 234 put_device(&rport->dev); 235 return; 236 } 237 238 if (ndlp->nlp_sid != NLP_NO_SID) { 239 warn_on = 1; 240 /* flush the target */ 241 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 242 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 243 } 244 245 if (warn_on) { 246 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 247 "0203 Devloss timeout on " 248 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 249 "NPort x%06x Data: x%x x%x x%x\n", 250 *name, *(name+1), *(name+2), *(name+3), 251 *(name+4), *(name+5), *(name+6), *(name+7), 252 ndlp->nlp_DID, ndlp->nlp_flag, 253 ndlp->nlp_state, ndlp->nlp_rpi); 254 } else { 255 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 256 "0204 Devloss timeout on " 257 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 258 "NPort x%06x Data: x%x x%x x%x\n", 259 *name, *(name+1), *(name+2), *(name+3), 260 *(name+4), *(name+5), *(name+6), *(name+7), 261 ndlp->nlp_DID, ndlp->nlp_flag, 262 ndlp->nlp_state, ndlp->nlp_rpi); 263 } 264 265 put_node = rdata->pnode != NULL; 266 put_rport = ndlp->rport != NULL; 267 rdata->pnode = NULL; 268 ndlp->rport = NULL; 269 if (put_node) 270 lpfc_nlp_put(ndlp); 271 if (put_rport) 272 put_device(&rport->dev); 273 274 if (!(vport->load_flag & FC_UNLOADING) && 275 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 276 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 277 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)) 278 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 279 280 lpfc_unregister_unused_fcf(phba); 281 } 282 283 /** 284 * lpfc_alloc_fast_evt - Allocates data structure for posting event 285 * @phba: Pointer to hba context object. 286 * 287 * This function is called from the functions which need to post 288 * events from interrupt context. This function allocates data 289 * structure required for posting event. It also keeps track of 290 * number of events pending and prevent event storm when there are 291 * too many events. 292 **/ 293 struct lpfc_fast_path_event * 294 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 295 struct lpfc_fast_path_event *ret; 296 297 /* If there are lot of fast event do not exhaust memory due to this */ 298 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 299 return NULL; 300 301 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 302 GFP_ATOMIC); 303 if (ret) { 304 atomic_inc(&phba->fast_event_count); 305 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 306 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 307 } 308 return ret; 309 } 310 311 /** 312 * lpfc_free_fast_evt - Frees event data structure 313 * @phba: Pointer to hba context object. 314 * @evt: Event object which need to be freed. 315 * 316 * This function frees the data structure required for posting 317 * events. 318 **/ 319 void 320 lpfc_free_fast_evt(struct lpfc_hba *phba, 321 struct lpfc_fast_path_event *evt) { 322 323 atomic_dec(&phba->fast_event_count); 324 kfree(evt); 325 } 326 327 /** 328 * lpfc_send_fastpath_evt - Posts events generated from fast path 329 * @phba: Pointer to hba context object. 330 * @evtp: Event data structure. 331 * 332 * This function is called from worker thread, when the interrupt 333 * context need to post an event. This function posts the event 334 * to fc transport netlink interface. 335 **/ 336 static void 337 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 338 struct lpfc_work_evt *evtp) 339 { 340 unsigned long evt_category, evt_sub_category; 341 struct lpfc_fast_path_event *fast_evt_data; 342 char *evt_data; 343 uint32_t evt_data_size; 344 struct Scsi_Host *shost; 345 346 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 347 work_evt); 348 349 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 350 evt_sub_category = (unsigned long) fast_evt_data->un. 351 fabric_evt.subcategory; 352 shost = lpfc_shost_from_vport(fast_evt_data->vport); 353 if (evt_category == FC_REG_FABRIC_EVENT) { 354 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 355 evt_data = (char *) &fast_evt_data->un.read_check_error; 356 evt_data_size = sizeof(fast_evt_data->un. 357 read_check_error); 358 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 359 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 360 evt_data = (char *) &fast_evt_data->un.fabric_evt; 361 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 362 } else { 363 lpfc_free_fast_evt(phba, fast_evt_data); 364 return; 365 } 366 } else if (evt_category == FC_REG_SCSI_EVENT) { 367 switch (evt_sub_category) { 368 case LPFC_EVENT_QFULL: 369 case LPFC_EVENT_DEVBSY: 370 evt_data = (char *) &fast_evt_data->un.scsi_evt; 371 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 372 break; 373 case LPFC_EVENT_CHECK_COND: 374 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 375 evt_data_size = sizeof(fast_evt_data->un. 376 check_cond_evt); 377 break; 378 case LPFC_EVENT_VARQUEDEPTH: 379 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 380 evt_data_size = sizeof(fast_evt_data->un. 381 queue_depth_evt); 382 break; 383 default: 384 lpfc_free_fast_evt(phba, fast_evt_data); 385 return; 386 } 387 } else { 388 lpfc_free_fast_evt(phba, fast_evt_data); 389 return; 390 } 391 392 fc_host_post_vendor_event(shost, 393 fc_get_event_number(), 394 evt_data_size, 395 evt_data, 396 LPFC_NL_VENDOR_ID); 397 398 lpfc_free_fast_evt(phba, fast_evt_data); 399 return; 400 } 401 402 static void 403 lpfc_work_list_done(struct lpfc_hba *phba) 404 { 405 struct lpfc_work_evt *evtp = NULL; 406 struct lpfc_nodelist *ndlp; 407 int free_evt; 408 409 spin_lock_irq(&phba->hbalock); 410 while (!list_empty(&phba->work_list)) { 411 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 412 evt_listp); 413 spin_unlock_irq(&phba->hbalock); 414 free_evt = 1; 415 switch (evtp->evt) { 416 case LPFC_EVT_ELS_RETRY: 417 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 418 lpfc_els_retry_delay_handler(ndlp); 419 free_evt = 0; /* evt is part of ndlp */ 420 /* decrement the node reference count held 421 * for this queued work 422 */ 423 lpfc_nlp_put(ndlp); 424 break; 425 case LPFC_EVT_DEV_LOSS: 426 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 427 lpfc_dev_loss_tmo_handler(ndlp); 428 free_evt = 0; 429 /* decrement the node reference count held for 430 * this queued work 431 */ 432 lpfc_nlp_put(ndlp); 433 break; 434 case LPFC_EVT_ONLINE: 435 if (phba->link_state < LPFC_LINK_DOWN) 436 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 437 else 438 *(int *) (evtp->evt_arg1) = 0; 439 complete((struct completion *)(evtp->evt_arg2)); 440 break; 441 case LPFC_EVT_OFFLINE_PREP: 442 if (phba->link_state >= LPFC_LINK_DOWN) 443 lpfc_offline_prep(phba); 444 *(int *)(evtp->evt_arg1) = 0; 445 complete((struct completion *)(evtp->evt_arg2)); 446 break; 447 case LPFC_EVT_OFFLINE: 448 lpfc_offline(phba); 449 lpfc_sli_brdrestart(phba); 450 *(int *)(evtp->evt_arg1) = 451 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 452 lpfc_unblock_mgmt_io(phba); 453 complete((struct completion *)(evtp->evt_arg2)); 454 break; 455 case LPFC_EVT_WARM_START: 456 lpfc_offline(phba); 457 lpfc_reset_barrier(phba); 458 lpfc_sli_brdreset(phba); 459 lpfc_hba_down_post(phba); 460 *(int *)(evtp->evt_arg1) = 461 lpfc_sli_brdready(phba, HS_MBRDY); 462 lpfc_unblock_mgmt_io(phba); 463 complete((struct completion *)(evtp->evt_arg2)); 464 break; 465 case LPFC_EVT_KILL: 466 lpfc_offline(phba); 467 *(int *)(evtp->evt_arg1) 468 = (phba->pport->stopped) 469 ? 0 : lpfc_sli_brdkill(phba); 470 lpfc_unblock_mgmt_io(phba); 471 complete((struct completion *)(evtp->evt_arg2)); 472 break; 473 case LPFC_EVT_FASTPATH_MGMT_EVT: 474 lpfc_send_fastpath_evt(phba, evtp); 475 free_evt = 0; 476 break; 477 } 478 if (free_evt) 479 kfree(evtp); 480 spin_lock_irq(&phba->hbalock); 481 } 482 spin_unlock_irq(&phba->hbalock); 483 484 } 485 486 static void 487 lpfc_work_done(struct lpfc_hba *phba) 488 { 489 struct lpfc_sli_ring *pring; 490 uint32_t ha_copy, status, control, work_port_events; 491 struct lpfc_vport **vports; 492 struct lpfc_vport *vport; 493 int i; 494 495 spin_lock_irq(&phba->hbalock); 496 ha_copy = phba->work_ha; 497 phba->work_ha = 0; 498 spin_unlock_irq(&phba->hbalock); 499 500 /* First, try to post the next mailbox command to SLI4 device */ 501 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 502 lpfc_sli4_post_async_mbox(phba); 503 504 if (ha_copy & HA_ERATT) 505 /* Handle the error attention event */ 506 lpfc_handle_eratt(phba); 507 508 if (ha_copy & HA_MBATT) 509 lpfc_sli_handle_mb_event(phba); 510 511 if (ha_copy & HA_LATT) 512 lpfc_handle_latt(phba); 513 514 /* Process SLI4 events */ 515 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 516 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 517 lpfc_sli4_fcp_xri_abort_event_proc(phba); 518 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 519 lpfc_sli4_els_xri_abort_event_proc(phba); 520 if (phba->hba_flag & ASYNC_EVENT) 521 lpfc_sli4_async_event_proc(phba); 522 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 523 spin_lock_irq(&phba->hbalock); 524 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 525 spin_unlock_irq(&phba->hbalock); 526 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 527 } 528 } 529 530 vports = lpfc_create_vport_work_array(phba); 531 if (vports != NULL) 532 for (i = 0; i <= phba->max_vports; i++) { 533 /* 534 * We could have no vports in array if unloading, so if 535 * this happens then just use the pport 536 */ 537 if (vports[i] == NULL && i == 0) 538 vport = phba->pport; 539 else 540 vport = vports[i]; 541 if (vport == NULL) 542 break; 543 spin_lock_irq(&vport->work_port_lock); 544 work_port_events = vport->work_port_events; 545 vport->work_port_events &= ~work_port_events; 546 spin_unlock_irq(&vport->work_port_lock); 547 if (work_port_events & WORKER_DISC_TMO) 548 lpfc_disc_timeout_handler(vport); 549 if (work_port_events & WORKER_ELS_TMO) 550 lpfc_els_timeout_handler(vport); 551 if (work_port_events & WORKER_HB_TMO) 552 lpfc_hb_timeout_handler(phba); 553 if (work_port_events & WORKER_MBOX_TMO) 554 lpfc_mbox_timeout_handler(phba); 555 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 556 lpfc_unblock_fabric_iocbs(phba); 557 if (work_port_events & WORKER_FDMI_TMO) 558 lpfc_fdmi_timeout_handler(vport); 559 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 560 lpfc_ramp_down_queue_handler(phba); 561 if (work_port_events & WORKER_RAMP_UP_QUEUE) 562 lpfc_ramp_up_queue_handler(phba); 563 } 564 lpfc_destroy_vport_work_array(phba, vports); 565 566 pring = &phba->sli.ring[LPFC_ELS_RING]; 567 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 568 status >>= (4*LPFC_ELS_RING); 569 if ((status & HA_RXMASK) || 570 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 571 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 572 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 573 pring->flag |= LPFC_DEFERRED_RING_EVENT; 574 /* Set the lpfc data pending flag */ 575 set_bit(LPFC_DATA_READY, &phba->data_flags); 576 } else { 577 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 578 lpfc_sli_handle_slow_ring_event(phba, pring, 579 (status & 580 HA_RXMASK)); 581 } 582 /* 583 * Turn on Ring interrupts 584 */ 585 if (phba->sli_rev <= LPFC_SLI_REV3) { 586 spin_lock_irq(&phba->hbalock); 587 control = readl(phba->HCregaddr); 588 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 589 lpfc_debugfs_slow_ring_trc(phba, 590 "WRK Enable ring: cntl:x%x hacopy:x%x", 591 control, ha_copy, 0); 592 593 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 594 writel(control, phba->HCregaddr); 595 readl(phba->HCregaddr); /* flush */ 596 } else { 597 lpfc_debugfs_slow_ring_trc(phba, 598 "WRK Ring ok: cntl:x%x hacopy:x%x", 599 control, ha_copy, 0); 600 } 601 spin_unlock_irq(&phba->hbalock); 602 } 603 } 604 lpfc_work_list_done(phba); 605 } 606 607 int 608 lpfc_do_work(void *p) 609 { 610 struct lpfc_hba *phba = p; 611 int rc; 612 613 set_user_nice(current, -20); 614 phba->data_flags = 0; 615 616 while (!kthread_should_stop()) { 617 /* wait and check worker queue activities */ 618 rc = wait_event_interruptible(phba->work_waitq, 619 (test_and_clear_bit(LPFC_DATA_READY, 620 &phba->data_flags) 621 || kthread_should_stop())); 622 /* Signal wakeup shall terminate the worker thread */ 623 if (rc) { 624 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 625 "0433 Wakeup on signal: rc=x%x\n", rc); 626 break; 627 } 628 629 /* Attend pending lpfc data processing */ 630 lpfc_work_done(phba); 631 } 632 phba->worker_thread = NULL; 633 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 634 "0432 Worker thread stopped.\n"); 635 return 0; 636 } 637 638 /* 639 * This is only called to handle FC worker events. Since this a rare 640 * occurance, we allocate a struct lpfc_work_evt structure here instead of 641 * embedding it in the IOCB. 642 */ 643 int 644 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 645 uint32_t evt) 646 { 647 struct lpfc_work_evt *evtp; 648 unsigned long flags; 649 650 /* 651 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 652 * be queued to worker thread for processing 653 */ 654 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 655 if (!evtp) 656 return 0; 657 658 evtp->evt_arg1 = arg1; 659 evtp->evt_arg2 = arg2; 660 evtp->evt = evt; 661 662 spin_lock_irqsave(&phba->hbalock, flags); 663 list_add_tail(&evtp->evt_listp, &phba->work_list); 664 spin_unlock_irqrestore(&phba->hbalock, flags); 665 666 lpfc_worker_wake_up(phba); 667 668 return 1; 669 } 670 671 void 672 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 673 { 674 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 675 struct lpfc_hba *phba = vport->phba; 676 struct lpfc_nodelist *ndlp, *next_ndlp; 677 int rc; 678 679 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 680 if (!NLP_CHK_NODE_ACT(ndlp)) 681 continue; 682 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 683 continue; 684 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 685 ((vport->port_type == LPFC_NPIV_PORT) && 686 (ndlp->nlp_DID == NameServer_DID))) 687 lpfc_unreg_rpi(vport, ndlp); 688 689 /* Leave Fabric nodes alone on link down */ 690 if ((phba->sli_rev < LPFC_SLI_REV4) && 691 (!remove && ndlp->nlp_type & NLP_FABRIC)) 692 continue; 693 rc = lpfc_disc_state_machine(vport, ndlp, NULL, 694 remove 695 ? NLP_EVT_DEVICE_RM 696 : NLP_EVT_DEVICE_RECOVERY); 697 } 698 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 699 lpfc_mbx_unreg_vpi(vport); 700 spin_lock_irq(shost->host_lock); 701 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 702 spin_unlock_irq(shost->host_lock); 703 } 704 } 705 706 void 707 lpfc_port_link_failure(struct lpfc_vport *vport) 708 { 709 /* Cleanup any outstanding received buffers */ 710 lpfc_cleanup_rcv_buffers(vport); 711 712 /* Cleanup any outstanding RSCN activity */ 713 lpfc_els_flush_rscn(vport); 714 715 /* Cleanup any outstanding ELS commands */ 716 lpfc_els_flush_cmd(vport); 717 718 lpfc_cleanup_rpis(vport, 0); 719 720 /* Turn off discovery timer if its running */ 721 lpfc_can_disctmo(vport); 722 } 723 724 void 725 lpfc_linkdown_port(struct lpfc_vport *vport) 726 { 727 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 728 729 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 730 731 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 732 "Link Down: state:x%x rtry:x%x flg:x%x", 733 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 734 735 lpfc_port_link_failure(vport); 736 737 } 738 739 int 740 lpfc_linkdown(struct lpfc_hba *phba) 741 { 742 struct lpfc_vport *vport = phba->pport; 743 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 744 struct lpfc_vport **vports; 745 LPFC_MBOXQ_t *mb; 746 int i; 747 748 if (phba->link_state == LPFC_LINK_DOWN) 749 return 0; 750 751 /* Block all SCSI stack I/Os */ 752 lpfc_scsi_dev_block(phba); 753 754 spin_lock_irq(&phba->hbalock); 755 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED); 756 if (phba->link_state > LPFC_LINK_DOWN) { 757 phba->link_state = LPFC_LINK_DOWN; 758 phba->pport->fc_flag &= ~FC_LBIT; 759 } 760 spin_unlock_irq(&phba->hbalock); 761 vports = lpfc_create_vport_work_array(phba); 762 if (vports != NULL) 763 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 764 /* Issue a LINK DOWN event to all nodes */ 765 lpfc_linkdown_port(vports[i]); 766 } 767 lpfc_destroy_vport_work_array(phba, vports); 768 /* Clean up any firmware default rpi's */ 769 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 770 if (mb) { 771 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb); 772 mb->vport = vport; 773 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 774 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 775 == MBX_NOT_FINISHED) { 776 mempool_free(mb, phba->mbox_mem_pool); 777 } 778 } 779 780 /* Setup myDID for link up if we are in pt2pt mode */ 781 if (phba->pport->fc_flag & FC_PT2PT) { 782 phba->pport->fc_myDID = 0; 783 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 784 if (mb) { 785 lpfc_config_link(phba, mb); 786 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 787 mb->vport = vport; 788 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 789 == MBX_NOT_FINISHED) { 790 mempool_free(mb, phba->mbox_mem_pool); 791 } 792 } 793 spin_lock_irq(shost->host_lock); 794 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 795 spin_unlock_irq(shost->host_lock); 796 } 797 798 return 0; 799 } 800 801 static void 802 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 803 { 804 struct lpfc_nodelist *ndlp; 805 806 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 807 if (!NLP_CHK_NODE_ACT(ndlp)) 808 continue; 809 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 810 continue; 811 if (ndlp->nlp_type & NLP_FABRIC) { 812 /* On Linkup its safe to clean up the ndlp 813 * from Fabric connections. 814 */ 815 if (ndlp->nlp_DID != Fabric_DID) 816 lpfc_unreg_rpi(vport, ndlp); 817 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 818 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 819 /* Fail outstanding IO now since device is 820 * marked for PLOGI. 821 */ 822 lpfc_unreg_rpi(vport, ndlp); 823 } 824 } 825 } 826 827 static void 828 lpfc_linkup_port(struct lpfc_vport *vport) 829 { 830 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 831 struct lpfc_hba *phba = vport->phba; 832 833 if ((vport->load_flag & FC_UNLOADING) != 0) 834 return; 835 836 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 837 "Link Up: top:x%x speed:x%x flg:x%x", 838 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 839 840 /* If NPIV is not enabled, only bring the physical port up */ 841 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 842 (vport != phba->pport)) 843 return; 844 845 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 846 847 spin_lock_irq(shost->host_lock); 848 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 849 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 850 vport->fc_flag |= FC_NDISC_ACTIVE; 851 vport->fc_ns_retry = 0; 852 spin_unlock_irq(shost->host_lock); 853 854 if (vport->fc_flag & FC_LBIT) 855 lpfc_linkup_cleanup_nodes(vport); 856 857 } 858 859 static int 860 lpfc_linkup(struct lpfc_hba *phba) 861 { 862 struct lpfc_vport **vports; 863 int i; 864 865 phba->link_state = LPFC_LINK_UP; 866 867 /* Unblock fabric iocbs if they are blocked */ 868 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 869 del_timer_sync(&phba->fabric_block_timer); 870 871 vports = lpfc_create_vport_work_array(phba); 872 if (vports != NULL) 873 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 874 lpfc_linkup_port(vports[i]); 875 lpfc_destroy_vport_work_array(phba, vports); 876 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 877 (phba->sli_rev < LPFC_SLI_REV4)) 878 lpfc_issue_clear_la(phba, phba->pport); 879 880 return 0; 881 } 882 883 /* 884 * This routine handles processing a CLEAR_LA mailbox 885 * command upon completion. It is setup in the LPFC_MBOXQ 886 * as the completion routine when the command is 887 * handed off to the SLI layer. 888 */ 889 static void 890 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 891 { 892 struct lpfc_vport *vport = pmb->vport; 893 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 894 struct lpfc_sli *psli = &phba->sli; 895 MAILBOX_t *mb = &pmb->u.mb; 896 uint32_t control; 897 898 /* Since we don't do discovery right now, turn these off here */ 899 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 900 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 901 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 902 903 /* Check for error */ 904 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 905 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 906 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 907 "0320 CLEAR_LA mbxStatus error x%x hba " 908 "state x%x\n", 909 mb->mbxStatus, vport->port_state); 910 phba->link_state = LPFC_HBA_ERROR; 911 goto out; 912 } 913 914 if (vport->port_type == LPFC_PHYSICAL_PORT) 915 phba->link_state = LPFC_HBA_READY; 916 917 spin_lock_irq(&phba->hbalock); 918 psli->sli_flag |= LPFC_PROCESS_LA; 919 control = readl(phba->HCregaddr); 920 control |= HC_LAINT_ENA; 921 writel(control, phba->HCregaddr); 922 readl(phba->HCregaddr); /* flush */ 923 spin_unlock_irq(&phba->hbalock); 924 mempool_free(pmb, phba->mbox_mem_pool); 925 return; 926 927 out: 928 /* Device Discovery completes */ 929 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 930 "0225 Device Discovery completes\n"); 931 mempool_free(pmb, phba->mbox_mem_pool); 932 933 spin_lock_irq(shost->host_lock); 934 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 935 spin_unlock_irq(shost->host_lock); 936 937 lpfc_can_disctmo(vport); 938 939 /* turn on Link Attention interrupts */ 940 941 spin_lock_irq(&phba->hbalock); 942 psli->sli_flag |= LPFC_PROCESS_LA; 943 control = readl(phba->HCregaddr); 944 control |= HC_LAINT_ENA; 945 writel(control, phba->HCregaddr); 946 readl(phba->HCregaddr); /* flush */ 947 spin_unlock_irq(&phba->hbalock); 948 949 return; 950 } 951 952 953 static void 954 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 955 { 956 struct lpfc_vport *vport = pmb->vport; 957 958 if (pmb->u.mb.mbxStatus) 959 goto out; 960 961 mempool_free(pmb, phba->mbox_mem_pool); 962 963 if (phba->fc_topology == TOPOLOGY_LOOP && 964 vport->fc_flag & FC_PUBLIC_LOOP && 965 !(vport->fc_flag & FC_LBIT)) { 966 /* Need to wait for FAN - use discovery timer 967 * for timeout. port_state is identically 968 * LPFC_LOCAL_CFG_LINK while waiting for FAN 969 */ 970 lpfc_set_disctmo(vport); 971 return; 972 } 973 974 /* Start discovery by sending a FLOGI. port_state is identically 975 * LPFC_FLOGI while waiting for FLOGI cmpl 976 */ 977 if (vport->port_state != LPFC_FLOGI) { 978 lpfc_initial_flogi(vport); 979 } 980 return; 981 982 out: 983 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 984 "0306 CONFIG_LINK mbxStatus error x%x " 985 "HBA state x%x\n", 986 pmb->u.mb.mbxStatus, vport->port_state); 987 mempool_free(pmb, phba->mbox_mem_pool); 988 989 lpfc_linkdown(phba); 990 991 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 992 "0200 CONFIG_LINK bad hba state x%x\n", 993 vport->port_state); 994 995 lpfc_issue_clear_la(phba, vport); 996 return; 997 } 998 999 static void 1000 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1001 { 1002 struct lpfc_vport *vport = mboxq->vport; 1003 unsigned long flags; 1004 1005 if (mboxq->u.mb.mbxStatus) { 1006 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1007 "2017 REG_FCFI mbxStatus error x%x " 1008 "HBA state x%x\n", 1009 mboxq->u.mb.mbxStatus, vport->port_state); 1010 mempool_free(mboxq, phba->mbox_mem_pool); 1011 return; 1012 } 1013 1014 /* Start FCoE discovery by sending a FLOGI. */ 1015 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1016 /* Set the FCFI registered flag */ 1017 spin_lock_irqsave(&phba->hbalock, flags); 1018 phba->fcf.fcf_flag |= FCF_REGISTERED; 1019 spin_unlock_irqrestore(&phba->hbalock, flags); 1020 /* If there is a pending FCoE event, restart FCF table scan. */ 1021 if (lpfc_check_pending_fcoe_event(phba, 1)) { 1022 mempool_free(mboxq, phba->mbox_mem_pool); 1023 return; 1024 } 1025 spin_lock_irqsave(&phba->hbalock, flags); 1026 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE); 1027 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1028 spin_unlock_irqrestore(&phba->hbalock, flags); 1029 if (vport->port_state != LPFC_FLOGI) 1030 lpfc_initial_flogi(vport); 1031 1032 mempool_free(mboxq, phba->mbox_mem_pool); 1033 return; 1034 } 1035 1036 /** 1037 * lpfc_fab_name_match - Check if the fcf fabric name match. 1038 * @fab_name: pointer to fabric name. 1039 * @new_fcf_record: pointer to fcf record. 1040 * 1041 * This routine compare the fcf record's fabric name with provided 1042 * fabric name. If the fabric name are identical this function 1043 * returns 1 else return 0. 1044 **/ 1045 static uint32_t 1046 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1047 { 1048 if ((fab_name[0] == 1049 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) && 1050 (fab_name[1] == 1051 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) && 1052 (fab_name[2] == 1053 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) && 1054 (fab_name[3] == 1055 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) && 1056 (fab_name[4] == 1057 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) && 1058 (fab_name[5] == 1059 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) && 1060 (fab_name[6] == 1061 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) && 1062 (fab_name[7] == 1063 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))) 1064 return 1; 1065 else 1066 return 0; 1067 } 1068 1069 /** 1070 * lpfc_sw_name_match - Check if the fcf switch name match. 1071 * @fab_name: pointer to fabric name. 1072 * @new_fcf_record: pointer to fcf record. 1073 * 1074 * This routine compare the fcf record's switch name with provided 1075 * switch name. If the switch name are identical this function 1076 * returns 1 else return 0. 1077 **/ 1078 static uint32_t 1079 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1080 { 1081 if ((sw_name[0] == 1082 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) && 1083 (sw_name[1] == 1084 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) && 1085 (sw_name[2] == 1086 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) && 1087 (sw_name[3] == 1088 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) && 1089 (sw_name[4] == 1090 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) && 1091 (sw_name[5] == 1092 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) && 1093 (sw_name[6] == 1094 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) && 1095 (sw_name[7] == 1096 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))) 1097 return 1; 1098 else 1099 return 0; 1100 } 1101 1102 /** 1103 * lpfc_mac_addr_match - Check if the fcf mac address match. 1104 * @phba: pointer to lpfc hba data structure. 1105 * @new_fcf_record: pointer to fcf record. 1106 * 1107 * This routine compare the fcf record's mac address with HBA's 1108 * FCF mac address. If the mac addresses are identical this function 1109 * returns 1 else return 0. 1110 **/ 1111 static uint32_t 1112 lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record) 1113 { 1114 if ((phba->fcf.mac_addr[0] == 1115 bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) && 1116 (phba->fcf.mac_addr[1] == 1117 bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) && 1118 (phba->fcf.mac_addr[2] == 1119 bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) && 1120 (phba->fcf.mac_addr[3] == 1121 bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) && 1122 (phba->fcf.mac_addr[4] == 1123 bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) && 1124 (phba->fcf.mac_addr[5] == 1125 bf_get(lpfc_fcf_record_mac_5, new_fcf_record))) 1126 return 1; 1127 else 1128 return 0; 1129 } 1130 1131 /** 1132 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1133 * @phba: pointer to lpfc hba data structure. 1134 * @new_fcf_record: pointer to fcf record. 1135 * 1136 * This routine copies the FCF information from the FCF 1137 * record to lpfc_hba data structure. 1138 **/ 1139 static void 1140 lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record) 1141 { 1142 phba->fcf.fabric_name[0] = 1143 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1144 phba->fcf.fabric_name[1] = 1145 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1146 phba->fcf.fabric_name[2] = 1147 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1148 phba->fcf.fabric_name[3] = 1149 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1150 phba->fcf.fabric_name[4] = 1151 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1152 phba->fcf.fabric_name[5] = 1153 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1154 phba->fcf.fabric_name[6] = 1155 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1156 phba->fcf.fabric_name[7] = 1157 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1158 phba->fcf.mac_addr[0] = 1159 bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1160 phba->fcf.mac_addr[1] = 1161 bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1162 phba->fcf.mac_addr[2] = 1163 bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1164 phba->fcf.mac_addr[3] = 1165 bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1166 phba->fcf.mac_addr[4] = 1167 bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1168 phba->fcf.mac_addr[5] = 1169 bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1170 phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1171 phba->fcf.priority = new_fcf_record->fip_priority; 1172 phba->fcf.switch_name[0] = 1173 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1174 phba->fcf.switch_name[1] = 1175 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1176 phba->fcf.switch_name[2] = 1177 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1178 phba->fcf.switch_name[3] = 1179 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1180 phba->fcf.switch_name[4] = 1181 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1182 phba->fcf.switch_name[5] = 1183 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1184 phba->fcf.switch_name[6] = 1185 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1186 phba->fcf.switch_name[7] = 1187 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1188 } 1189 1190 /** 1191 * lpfc_register_fcf - Register the FCF with hba. 1192 * @phba: pointer to lpfc hba data structure. 1193 * 1194 * This routine issues a register fcfi mailbox command to register 1195 * the fcf with HBA. 1196 **/ 1197 static void 1198 lpfc_register_fcf(struct lpfc_hba *phba) 1199 { 1200 LPFC_MBOXQ_t *fcf_mbxq; 1201 int rc; 1202 unsigned long flags; 1203 1204 spin_lock_irqsave(&phba->hbalock, flags); 1205 1206 /* If the FCF is not availabe do nothing. */ 1207 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1208 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1209 spin_unlock_irqrestore(&phba->hbalock, flags); 1210 return; 1211 } 1212 1213 /* The FCF is already registered, start discovery */ 1214 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1215 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE); 1216 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1217 spin_unlock_irqrestore(&phba->hbalock, flags); 1218 if (phba->pport->port_state != LPFC_FLOGI) 1219 lpfc_initial_flogi(phba->pport); 1220 return; 1221 } 1222 spin_unlock_irqrestore(&phba->hbalock, flags); 1223 1224 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, 1225 GFP_KERNEL); 1226 if (!fcf_mbxq) { 1227 spin_lock_irqsave(&phba->hbalock, flags); 1228 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1229 spin_unlock_irqrestore(&phba->hbalock, flags); 1230 return; 1231 } 1232 1233 lpfc_reg_fcfi(phba, fcf_mbxq); 1234 fcf_mbxq->vport = phba->pport; 1235 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1236 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1237 if (rc == MBX_NOT_FINISHED) { 1238 spin_lock_irqsave(&phba->hbalock, flags); 1239 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1240 spin_unlock_irqrestore(&phba->hbalock, flags); 1241 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1242 } 1243 1244 return; 1245 } 1246 1247 /** 1248 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1249 * @phba: pointer to lpfc hba data structure. 1250 * @new_fcf_record: pointer to fcf record. 1251 * @boot_flag: Indicates if this record used by boot bios. 1252 * @addr_mode: The address mode to be used by this FCF 1253 * 1254 * This routine compare the fcf record with connect list obtained from the 1255 * config region to decide if this FCF can be used for SAN discovery. It returns 1256 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1257 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1258 * is used by boot bios and addr_mode will indicate the addressing mode to be 1259 * used for this FCF when the function returns. 1260 * If the FCF record need to be used with a particular vlan id, the vlan is 1261 * set in the vlan_id on return of the function. If not VLAN tagging need to 1262 * be used with the FCF vlan_id will be set to 0xFFFF; 1263 **/ 1264 static int 1265 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1266 struct fcf_record *new_fcf_record, 1267 uint32_t *boot_flag, uint32_t *addr_mode, 1268 uint16_t *vlan_id) 1269 { 1270 struct lpfc_fcf_conn_entry *conn_entry; 1271 int i, j, fcf_vlan_id = 0; 1272 1273 /* Find the lowest VLAN id in the FCF record */ 1274 for (i = 0; i < 512; i++) { 1275 if (new_fcf_record->vlan_bitmap[i]) { 1276 fcf_vlan_id = i * 8; 1277 j = 0; 1278 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1279 j++; 1280 fcf_vlan_id++; 1281 } 1282 break; 1283 } 1284 } 1285 1286 /* If FCF not available return 0 */ 1287 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1288 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record)) 1289 return 0; 1290 1291 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1292 *boot_flag = 0; 1293 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1294 new_fcf_record); 1295 if (phba->valid_vlan) 1296 *vlan_id = phba->vlan_id; 1297 else 1298 *vlan_id = 0xFFFF; 1299 return 1; 1300 } 1301 1302 /* 1303 * If there are no FCF connection table entry, driver connect to all 1304 * FCFs. 1305 */ 1306 if (list_empty(&phba->fcf_conn_rec_list)) { 1307 *boot_flag = 0; 1308 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1309 new_fcf_record); 1310 1311 /* 1312 * When there are no FCF connect entries, use driver's default 1313 * addressing mode - FPMA. 1314 */ 1315 if (*addr_mode & LPFC_FCF_FPMA) 1316 *addr_mode = LPFC_FCF_FPMA; 1317 1318 /* If FCF record report a vlan id use that vlan id */ 1319 if (fcf_vlan_id) 1320 *vlan_id = fcf_vlan_id; 1321 else 1322 *vlan_id = 0xFFFF; 1323 return 1; 1324 } 1325 1326 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) { 1327 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1328 continue; 1329 1330 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1331 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1332 new_fcf_record)) 1333 continue; 1334 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1335 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1336 new_fcf_record)) 1337 continue; 1338 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1339 /* 1340 * If the vlan bit map does not have the bit set for the 1341 * vlan id to be used, then it is not a match. 1342 */ 1343 if (!(new_fcf_record->vlan_bitmap 1344 [conn_entry->conn_rec.vlan_tag / 8] & 1345 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1346 continue; 1347 } 1348 1349 /* 1350 * If connection record does not support any addressing mode, 1351 * skip the FCF record. 1352 */ 1353 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1354 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1355 continue; 1356 1357 /* 1358 * Check if the connection record specifies a required 1359 * addressing mode. 1360 */ 1361 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1362 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1363 1364 /* 1365 * If SPMA required but FCF not support this continue. 1366 */ 1367 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1368 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1369 new_fcf_record) & LPFC_FCF_SPMA)) 1370 continue; 1371 1372 /* 1373 * If FPMA required but FCF not support this continue. 1374 */ 1375 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1376 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1377 new_fcf_record) & LPFC_FCF_FPMA)) 1378 continue; 1379 } 1380 1381 /* 1382 * This fcf record matches filtering criteria. 1383 */ 1384 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1385 *boot_flag = 1; 1386 else 1387 *boot_flag = 0; 1388 1389 /* 1390 * If user did not specify any addressing mode, or if the 1391 * prefered addressing mode specified by user is not supported 1392 * by FCF, allow fabric to pick the addressing mode. 1393 */ 1394 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1395 new_fcf_record); 1396 /* 1397 * If the user specified a required address mode, assign that 1398 * address mode 1399 */ 1400 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1401 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1402 *addr_mode = (conn_entry->conn_rec.flags & 1403 FCFCNCT_AM_SPMA) ? 1404 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1405 /* 1406 * If the user specified a prefered address mode, use the 1407 * addr mode only if FCF support the addr_mode. 1408 */ 1409 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1410 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1411 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1412 (*addr_mode & LPFC_FCF_SPMA)) 1413 *addr_mode = LPFC_FCF_SPMA; 1414 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1415 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1416 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1417 (*addr_mode & LPFC_FCF_FPMA)) 1418 *addr_mode = LPFC_FCF_FPMA; 1419 1420 /* If matching connect list has a vlan id, use it */ 1421 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1422 *vlan_id = conn_entry->conn_rec.vlan_tag; 1423 /* 1424 * If no vlan id is specified in connect list, use the vlan id 1425 * in the FCF record 1426 */ 1427 else if (fcf_vlan_id) 1428 *vlan_id = fcf_vlan_id; 1429 else 1430 *vlan_id = 0xFFFF; 1431 1432 return 1; 1433 } 1434 1435 return 0; 1436 } 1437 1438 /** 1439 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1440 * @phba: pointer to lpfc hba data structure. 1441 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1442 * 1443 * This function check if there is any fcoe event pending while driver 1444 * scan FCF entries. If there is any pending event, it will restart the 1445 * FCF saning and return 1 else return 0. 1446 */ 1447 int 1448 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1449 { 1450 LPFC_MBOXQ_t *mbox; 1451 int rc; 1452 /* 1453 * If the Link is up and no FCoE events while in the 1454 * FCF discovery, no need to restart FCF discovery. 1455 */ 1456 if ((phba->link_state >= LPFC_LINK_UP) && 1457 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1458 return 0; 1459 1460 spin_lock_irq(&phba->hbalock); 1461 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1462 spin_unlock_irq(&phba->hbalock); 1463 1464 if (phba->link_state >= LPFC_LINK_UP) 1465 lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST); 1466 else { 1467 /* 1468 * Do not continue FCF discovery and clear FCF_DISC_INPROGRESS 1469 * flag 1470 */ 1471 spin_lock_irq(&phba->hbalock); 1472 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1473 spin_unlock_irq(&phba->hbalock); 1474 } 1475 1476 if (unreg_fcf) { 1477 spin_lock_irq(&phba->hbalock); 1478 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1479 spin_unlock_irq(&phba->hbalock); 1480 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1481 if (!mbox) { 1482 lpfc_printf_log(phba, KERN_ERR, 1483 LOG_DISCOVERY|LOG_MBOX, 1484 "2610 UNREG_FCFI mbox allocation failed\n"); 1485 return 1; 1486 } 1487 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 1488 mbox->vport = phba->pport; 1489 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 1490 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1491 if (rc == MBX_NOT_FINISHED) { 1492 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 1493 "2611 UNREG_FCFI issue mbox failed\n"); 1494 mempool_free(mbox, phba->mbox_mem_pool); 1495 } 1496 } 1497 1498 return 1; 1499 } 1500 1501 /** 1502 * lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox. 1503 * @phba: pointer to lpfc hba data structure. 1504 * @mboxq: pointer to mailbox object. 1505 * 1506 * This function iterate through all the fcf records available in 1507 * HBA and choose the optimal FCF record for discovery. After finding 1508 * the FCF for discovery it register the FCF record and kick start 1509 * discovery. 1510 * If FCF_IN_USE flag is set in currently used FCF, the routine try to 1511 * use a FCF record which match fabric name and mac address of the 1512 * currently used FCF record. 1513 * If the driver support only one FCF, it will try to use the FCF record 1514 * used by BOOT_BIOS. 1515 */ 1516 void 1517 lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1518 { 1519 void *virt_addr; 1520 dma_addr_t phys_addr; 1521 uint8_t *bytep; 1522 struct lpfc_mbx_sge sge; 1523 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1524 uint32_t shdr_status, shdr_add_status; 1525 union lpfc_sli4_cfg_shdr *shdr; 1526 struct fcf_record *new_fcf_record; 1527 int rc; 1528 uint32_t boot_flag, addr_mode; 1529 uint32_t next_fcf_index; 1530 unsigned long flags; 1531 uint16_t vlan_id; 1532 1533 /* If there is pending FCoE event restart FCF table scan */ 1534 if (lpfc_check_pending_fcoe_event(phba, 0)) { 1535 lpfc_sli4_mbox_cmd_free(phba, mboxq); 1536 return; 1537 } 1538 1539 /* Get the first SGE entry from the non-embedded DMA memory. This 1540 * routine only uses a single SGE. 1541 */ 1542 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1543 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); 1544 if (unlikely(!mboxq->sge_array)) { 1545 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1546 "2524 Failed to get the non-embedded SGE " 1547 "virtual address\n"); 1548 goto out; 1549 } 1550 virt_addr = mboxq->sge_array->addr[0]; 1551 1552 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1553 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1554 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 1555 &shdr->response); 1556 /* 1557 * The FCF Record was read and there is no reason for the driver 1558 * to maintain the FCF record data or memory. Instead, just need 1559 * to book keeping the FCFIs can be used. 1560 */ 1561 if (shdr_status || shdr_add_status) { 1562 if (shdr_status == STATUS_FCF_TABLE_EMPTY) { 1563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1564 "2726 READ_FCF_RECORD Indicates empty " 1565 "FCF table.\n"); 1566 } else { 1567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1568 "2521 READ_FCF_RECORD mailbox failed " 1569 "with status x%x add_status x%x, mbx\n", 1570 shdr_status, shdr_add_status); 1571 } 1572 goto out; 1573 } 1574 /* Interpreting the returned information of FCF records */ 1575 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1576 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1577 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1578 next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1579 1580 new_fcf_record = (struct fcf_record *)(virt_addr + 1581 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1582 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1583 sizeof(struct fcf_record)); 1584 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); 1585 1586 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, 1587 &boot_flag, &addr_mode, 1588 &vlan_id); 1589 /* 1590 * If the fcf record does not match with connect list entries 1591 * read the next entry. 1592 */ 1593 if (!rc) 1594 goto read_next_fcf; 1595 /* 1596 * If this is not the first FCF discovery of the HBA, use last 1597 * FCF record for the discovery. 1598 */ 1599 spin_lock_irqsave(&phba->hbalock, flags); 1600 if (phba->fcf.fcf_flag & FCF_IN_USE) { 1601 if (lpfc_fab_name_match(phba->fcf.fabric_name, 1602 new_fcf_record) && 1603 lpfc_sw_name_match(phba->fcf.switch_name, 1604 new_fcf_record) && 1605 lpfc_mac_addr_match(phba, new_fcf_record)) { 1606 phba->fcf.fcf_flag |= FCF_AVAILABLE; 1607 spin_unlock_irqrestore(&phba->hbalock, flags); 1608 goto out; 1609 } 1610 spin_unlock_irqrestore(&phba->hbalock, flags); 1611 goto read_next_fcf; 1612 } 1613 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 1614 /* 1615 * If the current FCF record does not have boot flag 1616 * set and new fcf record has boot flag set, use the 1617 * new fcf record. 1618 */ 1619 if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) { 1620 /* Use this FCF record */ 1621 lpfc_copy_fcf_record(phba, new_fcf_record); 1622 phba->fcf.addr_mode = addr_mode; 1623 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE; 1624 if (vlan_id != 0xFFFF) { 1625 phba->fcf.fcf_flag |= FCF_VALID_VLAN; 1626 phba->fcf.vlan_id = vlan_id; 1627 } 1628 spin_unlock_irqrestore(&phba->hbalock, flags); 1629 goto read_next_fcf; 1630 } 1631 /* 1632 * If the current FCF record has boot flag set and the 1633 * new FCF record does not have boot flag, read the next 1634 * FCF record. 1635 */ 1636 if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) { 1637 spin_unlock_irqrestore(&phba->hbalock, flags); 1638 goto read_next_fcf; 1639 } 1640 /* 1641 * If there is a record with lower priority value for 1642 * the current FCF, use that record. 1643 */ 1644 if (lpfc_fab_name_match(phba->fcf.fabric_name, 1645 new_fcf_record) && 1646 (new_fcf_record->fip_priority < phba->fcf.priority)) { 1647 /* Use this FCF record */ 1648 lpfc_copy_fcf_record(phba, new_fcf_record); 1649 phba->fcf.addr_mode = addr_mode; 1650 if (vlan_id != 0xFFFF) { 1651 phba->fcf.fcf_flag |= FCF_VALID_VLAN; 1652 phba->fcf.vlan_id = vlan_id; 1653 } 1654 spin_unlock_irqrestore(&phba->hbalock, flags); 1655 goto read_next_fcf; 1656 } 1657 spin_unlock_irqrestore(&phba->hbalock, flags); 1658 goto read_next_fcf; 1659 } 1660 /* 1661 * This is the first available FCF record, use this 1662 * record. 1663 */ 1664 lpfc_copy_fcf_record(phba, new_fcf_record); 1665 phba->fcf.addr_mode = addr_mode; 1666 if (boot_flag) 1667 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE; 1668 phba->fcf.fcf_flag |= FCF_AVAILABLE; 1669 if (vlan_id != 0xFFFF) { 1670 phba->fcf.fcf_flag |= FCF_VALID_VLAN; 1671 phba->fcf.vlan_id = vlan_id; 1672 } 1673 spin_unlock_irqrestore(&phba->hbalock, flags); 1674 goto read_next_fcf; 1675 1676 read_next_fcf: 1677 lpfc_sli4_mbox_cmd_free(phba, mboxq); 1678 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) 1679 lpfc_register_fcf(phba); 1680 else 1681 lpfc_sli4_read_fcf_record(phba, next_fcf_index); 1682 return; 1683 1684 out: 1685 lpfc_sli4_mbox_cmd_free(phba, mboxq); 1686 lpfc_register_fcf(phba); 1687 1688 return; 1689 } 1690 1691 /** 1692 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 1693 * @phba: pointer to lpfc hba data structure. 1694 * @mboxq: pointer to mailbox data structure. 1695 * 1696 * This function handles completion of init vpi mailbox command. 1697 */ 1698 static void 1699 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1700 { 1701 struct lpfc_vport *vport = mboxq->vport; 1702 if (mboxq->u.mb.mbxStatus) { 1703 lpfc_printf_vlog(vport, KERN_ERR, 1704 LOG_MBOX, 1705 "2609 Init VPI mailbox failed 0x%x\n", 1706 mboxq->u.mb.mbxStatus); 1707 mempool_free(mboxq, phba->mbox_mem_pool); 1708 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1709 return; 1710 } 1711 spin_lock_irq(&phba->hbalock); 1712 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 1713 spin_unlock_irq(&phba->hbalock); 1714 1715 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 1716 lpfc_initial_fdisc(vport); 1717 else { 1718 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 1719 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1720 "2606 No NPIV Fabric support\n"); 1721 } 1722 return; 1723 } 1724 1725 /** 1726 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 1727 * @phba: pointer to lpfc hba data structure. 1728 * 1729 * This function loops through the list of vports on the @phba and issues an 1730 * FDISC if possible. 1731 */ 1732 void 1733 lpfc_start_fdiscs(struct lpfc_hba *phba) 1734 { 1735 struct lpfc_vport **vports; 1736 int i; 1737 LPFC_MBOXQ_t *mboxq; 1738 int rc; 1739 1740 vports = lpfc_create_vport_work_array(phba); 1741 if (vports != NULL) { 1742 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1743 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 1744 continue; 1745 /* There are no vpi for this vport */ 1746 if (vports[i]->vpi > phba->max_vpi) { 1747 lpfc_vport_set_state(vports[i], 1748 FC_VPORT_FAILED); 1749 continue; 1750 } 1751 if (phba->fc_topology == TOPOLOGY_LOOP) { 1752 lpfc_vport_set_state(vports[i], 1753 FC_VPORT_LINKDOWN); 1754 continue; 1755 } 1756 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 1757 mboxq = mempool_alloc(phba->mbox_mem_pool, 1758 GFP_KERNEL); 1759 if (!mboxq) { 1760 lpfc_printf_vlog(vports[i], KERN_ERR, 1761 LOG_MBOX, "2607 Failed to allocate " 1762 "init_vpi mailbox\n"); 1763 continue; 1764 } 1765 lpfc_init_vpi(phba, mboxq, vports[i]->vpi); 1766 mboxq->vport = vports[i]; 1767 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 1768 rc = lpfc_sli_issue_mbox(phba, mboxq, 1769 MBX_NOWAIT); 1770 if (rc == MBX_NOT_FINISHED) { 1771 lpfc_printf_vlog(vports[i], KERN_ERR, 1772 LOG_MBOX, "2608 Failed to issue " 1773 "init_vpi mailbox\n"); 1774 mempool_free(mboxq, 1775 phba->mbox_mem_pool); 1776 } 1777 continue; 1778 } 1779 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 1780 lpfc_initial_fdisc(vports[i]); 1781 else { 1782 lpfc_vport_set_state(vports[i], 1783 FC_VPORT_NO_FABRIC_SUPP); 1784 lpfc_printf_vlog(vports[i], KERN_ERR, 1785 LOG_ELS, 1786 "0259 No NPIV " 1787 "Fabric support\n"); 1788 } 1789 } 1790 } 1791 lpfc_destroy_vport_work_array(phba, vports); 1792 } 1793 1794 void 1795 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1796 { 1797 struct lpfc_dmabuf *dmabuf = mboxq->context1; 1798 struct lpfc_vport *vport = mboxq->vport; 1799 1800 if (mboxq->u.mb.mbxStatus) { 1801 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1802 "2018 REG_VFI mbxStatus error x%x " 1803 "HBA state x%x\n", 1804 mboxq->u.mb.mbxStatus, vport->port_state); 1805 if (phba->fc_topology == TOPOLOGY_LOOP) { 1806 /* FLOGI failed, use loop map to make discovery list */ 1807 lpfc_disc_list_loopmap(vport); 1808 /* Start discovery */ 1809 lpfc_disc_start(vport); 1810 goto fail_free_mem; 1811 } 1812 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1813 goto fail_free_mem; 1814 } 1815 /* The VPI is implicitly registered when the VFI is registered */ 1816 vport->vpi_state |= LPFC_VPI_REGISTERED; 1817 1818 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 1819 lpfc_start_fdiscs(phba); 1820 lpfc_do_scr_ns_plogi(phba, vport); 1821 } 1822 1823 fail_free_mem: 1824 mempool_free(mboxq, phba->mbox_mem_pool); 1825 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 1826 kfree(dmabuf); 1827 return; 1828 } 1829 1830 static void 1831 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1832 { 1833 MAILBOX_t *mb = &pmb->u.mb; 1834 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 1835 struct lpfc_vport *vport = pmb->vport; 1836 1837 1838 /* Check for error */ 1839 if (mb->mbxStatus) { 1840 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 1841 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1842 "0319 READ_SPARAM mbxStatus error x%x " 1843 "hba state x%x>\n", 1844 mb->mbxStatus, vport->port_state); 1845 lpfc_linkdown(phba); 1846 goto out; 1847 } 1848 1849 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 1850 sizeof (struct serv_parm)); 1851 if (phba->cfg_soft_wwnn) 1852 u64_to_wwn(phba->cfg_soft_wwnn, 1853 vport->fc_sparam.nodeName.u.wwn); 1854 if (phba->cfg_soft_wwpn) 1855 u64_to_wwn(phba->cfg_soft_wwpn, 1856 vport->fc_sparam.portName.u.wwn); 1857 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 1858 sizeof(vport->fc_nodename)); 1859 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 1860 sizeof(vport->fc_portname)); 1861 if (vport->port_type == LPFC_PHYSICAL_PORT) { 1862 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 1863 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 1864 } 1865 1866 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1867 kfree(mp); 1868 mempool_free(pmb, phba->mbox_mem_pool); 1869 return; 1870 1871 out: 1872 pmb->context1 = NULL; 1873 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1874 kfree(mp); 1875 lpfc_issue_clear_la(phba, vport); 1876 mempool_free(pmb, phba->mbox_mem_pool); 1877 return; 1878 } 1879 1880 static void 1881 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) 1882 { 1883 struct lpfc_vport *vport = phba->pport; 1884 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 1885 int i; 1886 struct lpfc_dmabuf *mp; 1887 int rc; 1888 struct fcf_record *fcf_record; 1889 1890 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1891 1892 spin_lock_irq(&phba->hbalock); 1893 switch (la->UlnkSpeed) { 1894 case LA_1GHZ_LINK: 1895 phba->fc_linkspeed = LA_1GHZ_LINK; 1896 break; 1897 case LA_2GHZ_LINK: 1898 phba->fc_linkspeed = LA_2GHZ_LINK; 1899 break; 1900 case LA_4GHZ_LINK: 1901 phba->fc_linkspeed = LA_4GHZ_LINK; 1902 break; 1903 case LA_8GHZ_LINK: 1904 phba->fc_linkspeed = LA_8GHZ_LINK; 1905 break; 1906 case LA_10GHZ_LINK: 1907 phba->fc_linkspeed = LA_10GHZ_LINK; 1908 break; 1909 default: 1910 phba->fc_linkspeed = LA_UNKNW_LINK; 1911 break; 1912 } 1913 1914 phba->fc_topology = la->topology; 1915 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 1916 1917 if (phba->fc_topology == TOPOLOGY_LOOP) { 1918 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 1919 1920 /* if npiv is enabled and this adapter supports npiv log 1921 * a message that npiv is not supported in this topology 1922 */ 1923 if (phba->cfg_enable_npiv && phba->max_vpi) 1924 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1925 "1309 Link Up Event npiv not supported in loop " 1926 "topology\n"); 1927 /* Get Loop Map information */ 1928 if (la->il) 1929 vport->fc_flag |= FC_LBIT; 1930 1931 vport->fc_myDID = la->granted_AL_PA; 1932 i = la->un.lilpBde64.tus.f.bdeSize; 1933 1934 if (i == 0) { 1935 phba->alpa_map[0] = 0; 1936 } else { 1937 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 1938 int numalpa, j, k; 1939 union { 1940 uint8_t pamap[16]; 1941 struct { 1942 uint32_t wd1; 1943 uint32_t wd2; 1944 uint32_t wd3; 1945 uint32_t wd4; 1946 } pa; 1947 } un; 1948 numalpa = phba->alpa_map[0]; 1949 j = 0; 1950 while (j < numalpa) { 1951 memset(un.pamap, 0, 16); 1952 for (k = 1; j < numalpa; k++) { 1953 un.pamap[k - 1] = 1954 phba->alpa_map[j + 1]; 1955 j++; 1956 if (k == 16) 1957 break; 1958 } 1959 /* Link Up Event ALPA map */ 1960 lpfc_printf_log(phba, 1961 KERN_WARNING, 1962 LOG_LINK_EVENT, 1963 "1304 Link Up Event " 1964 "ALPA map Data: x%x " 1965 "x%x x%x x%x\n", 1966 un.pa.wd1, un.pa.wd2, 1967 un.pa.wd3, un.pa.wd4); 1968 } 1969 } 1970 } 1971 } else { 1972 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 1973 if (phba->max_vpi && phba->cfg_enable_npiv && 1974 (phba->sli_rev == 3)) 1975 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 1976 } 1977 vport->fc_myDID = phba->fc_pref_DID; 1978 vport->fc_flag |= FC_LBIT; 1979 } 1980 spin_unlock_irq(&phba->hbalock); 1981 1982 lpfc_linkup(phba); 1983 if (sparam_mbox) { 1984 lpfc_read_sparam(phba, sparam_mbox, 0); 1985 sparam_mbox->vport = vport; 1986 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1987 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 1988 if (rc == MBX_NOT_FINISHED) { 1989 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 1990 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1991 kfree(mp); 1992 mempool_free(sparam_mbox, phba->mbox_mem_pool); 1993 goto out; 1994 } 1995 } 1996 1997 if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) { 1998 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1999 if (!cfglink_mbox) 2000 goto out; 2001 vport->port_state = LPFC_LOCAL_CFG_LINK; 2002 lpfc_config_link(phba, cfglink_mbox); 2003 cfglink_mbox->vport = vport; 2004 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 2005 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 2006 if (rc == MBX_NOT_FINISHED) { 2007 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 2008 goto out; 2009 } 2010 } else { 2011 vport->port_state = LPFC_VPORT_UNKNOWN; 2012 /* 2013 * Add the driver's default FCF record at FCF index 0 now. This 2014 * is phase 1 implementation that support FCF index 0 and driver 2015 * defaults. 2016 */ 2017 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 2018 fcf_record = kzalloc(sizeof(struct fcf_record), 2019 GFP_KERNEL); 2020 if (unlikely(!fcf_record)) { 2021 lpfc_printf_log(phba, KERN_ERR, 2022 LOG_MBOX | LOG_SLI, 2023 "2554 Could not allocate memmory for " 2024 "fcf record\n"); 2025 rc = -ENODEV; 2026 goto out; 2027 } 2028 2029 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 2030 LPFC_FCOE_FCF_DEF_INDEX); 2031 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 2032 if (unlikely(rc)) { 2033 lpfc_printf_log(phba, KERN_ERR, 2034 LOG_MBOX | LOG_SLI, 2035 "2013 Could not manually add FCF " 2036 "record 0, status %d\n", rc); 2037 rc = -ENODEV; 2038 kfree(fcf_record); 2039 goto out; 2040 } 2041 kfree(fcf_record); 2042 } 2043 /* 2044 * The driver is expected to do FIP/FCF. Call the port 2045 * and get the FCF Table. 2046 */ 2047 spin_lock_irq(&phba->hbalock); 2048 if (phba->hba_flag & FCF_DISC_INPROGRESS) { 2049 spin_unlock_irq(&phba->hbalock); 2050 return; 2051 } 2052 spin_unlock_irq(&phba->hbalock); 2053 rc = lpfc_sli4_read_fcf_record(phba, 2054 LPFC_FCOE_FCF_GET_FIRST); 2055 if (rc) 2056 goto out; 2057 } 2058 2059 return; 2060 out: 2061 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2062 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2063 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 2064 vport->port_state, sparam_mbox, cfglink_mbox); 2065 lpfc_issue_clear_la(phba, vport); 2066 return; 2067 } 2068 2069 static void 2070 lpfc_enable_la(struct lpfc_hba *phba) 2071 { 2072 uint32_t control; 2073 struct lpfc_sli *psli = &phba->sli; 2074 spin_lock_irq(&phba->hbalock); 2075 psli->sli_flag |= LPFC_PROCESS_LA; 2076 if (phba->sli_rev <= LPFC_SLI_REV3) { 2077 control = readl(phba->HCregaddr); 2078 control |= HC_LAINT_ENA; 2079 writel(control, phba->HCregaddr); 2080 readl(phba->HCregaddr); /* flush */ 2081 } 2082 spin_unlock_irq(&phba->hbalock); 2083 } 2084 2085 static void 2086 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 2087 { 2088 lpfc_linkdown(phba); 2089 lpfc_enable_la(phba); 2090 lpfc_unregister_unused_fcf(phba); 2091 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 2092 } 2093 2094 2095 /* 2096 * This routine handles processing a READ_LA mailbox 2097 * command upon completion. It is setup in the LPFC_MBOXQ 2098 * as the completion routine when the command is 2099 * handed off to the SLI layer. 2100 */ 2101 void 2102 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2103 { 2104 struct lpfc_vport *vport = pmb->vport; 2105 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2106 READ_LA_VAR *la; 2107 MAILBOX_t *mb = &pmb->u.mb; 2108 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2109 2110 /* Unblock ELS traffic */ 2111 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2112 /* Check for error */ 2113 if (mb->mbxStatus) { 2114 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 2115 "1307 READ_LA mbox error x%x state x%x\n", 2116 mb->mbxStatus, vport->port_state); 2117 lpfc_mbx_issue_link_down(phba); 2118 phba->link_state = LPFC_HBA_ERROR; 2119 goto lpfc_mbx_cmpl_read_la_free_mbuf; 2120 } 2121 2122 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2123 2124 memcpy(&phba->alpa_map[0], mp->virt, 128); 2125 2126 spin_lock_irq(shost->host_lock); 2127 if (la->pb) 2128 vport->fc_flag |= FC_BYPASSED_MODE; 2129 else 2130 vport->fc_flag &= ~FC_BYPASSED_MODE; 2131 spin_unlock_irq(shost->host_lock); 2132 2133 if ((phba->fc_eventTag < la->eventTag) || 2134 (phba->fc_eventTag == la->eventTag)) { 2135 phba->fc_stat.LinkMultiEvent++; 2136 if (la->attType == AT_LINK_UP) 2137 if (phba->fc_eventTag != 0) 2138 lpfc_linkdown(phba); 2139 } 2140 2141 phba->fc_eventTag = la->eventTag; 2142 if (la->mm) 2143 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 2144 else 2145 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 2146 2147 phba->link_events++; 2148 if (la->attType == AT_LINK_UP && (!la->mm)) { 2149 phba->fc_stat.LinkUp++; 2150 if (phba->link_flag & LS_LOOPBACK_MODE) { 2151 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2152 "1306 Link Up Event in loop back mode " 2153 "x%x received Data: x%x x%x x%x x%x\n", 2154 la->eventTag, phba->fc_eventTag, 2155 la->granted_AL_PA, la->UlnkSpeed, 2156 phba->alpa_map[0]); 2157 } else { 2158 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2159 "1303 Link Up Event x%x received " 2160 "Data: x%x x%x x%x x%x x%x x%x %d\n", 2161 la->eventTag, phba->fc_eventTag, 2162 la->granted_AL_PA, la->UlnkSpeed, 2163 phba->alpa_map[0], 2164 la->mm, la->fa, 2165 phba->wait_4_mlo_maint_flg); 2166 } 2167 lpfc_mbx_process_link_up(phba, la); 2168 } else if (la->attType == AT_LINK_DOWN) { 2169 phba->fc_stat.LinkDown++; 2170 if (phba->link_flag & LS_LOOPBACK_MODE) { 2171 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2172 "1308 Link Down Event in loop back mode " 2173 "x%x received " 2174 "Data: x%x x%x x%x\n", 2175 la->eventTag, phba->fc_eventTag, 2176 phba->pport->port_state, vport->fc_flag); 2177 } 2178 else { 2179 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2180 "1305 Link Down Event x%x received " 2181 "Data: x%x x%x x%x x%x x%x\n", 2182 la->eventTag, phba->fc_eventTag, 2183 phba->pport->port_state, vport->fc_flag, 2184 la->mm, la->fa); 2185 } 2186 lpfc_mbx_issue_link_down(phba); 2187 } 2188 if (la->mm && la->attType == AT_LINK_UP) { 2189 if (phba->link_state != LPFC_LINK_DOWN) { 2190 phba->fc_stat.LinkDown++; 2191 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2192 "1312 Link Down Event x%x received " 2193 "Data: x%x x%x x%x\n", 2194 la->eventTag, phba->fc_eventTag, 2195 phba->pport->port_state, vport->fc_flag); 2196 lpfc_mbx_issue_link_down(phba); 2197 } else 2198 lpfc_enable_la(phba); 2199 2200 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2201 "1310 Menlo Maint Mode Link up Event x%x rcvd " 2202 "Data: x%x x%x x%x\n", 2203 la->eventTag, phba->fc_eventTag, 2204 phba->pport->port_state, vport->fc_flag); 2205 /* 2206 * The cmnd that triggered this will be waiting for this 2207 * signal. 2208 */ 2209 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 2210 if (phba->wait_4_mlo_maint_flg) { 2211 phba->wait_4_mlo_maint_flg = 0; 2212 wake_up_interruptible(&phba->wait_4_mlo_m_q); 2213 } 2214 } 2215 2216 if (la->fa) { 2217 if (la->mm) 2218 lpfc_issue_clear_la(phba, vport); 2219 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 2220 "1311 fa %d\n", la->fa); 2221 } 2222 2223 lpfc_mbx_cmpl_read_la_free_mbuf: 2224 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2225 kfree(mp); 2226 mempool_free(pmb, phba->mbox_mem_pool); 2227 return; 2228 } 2229 2230 /* 2231 * This routine handles processing a REG_LOGIN mailbox 2232 * command upon completion. It is setup in the LPFC_MBOXQ 2233 * as the completion routine when the command is 2234 * handed off to the SLI layer. 2235 */ 2236 void 2237 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2238 { 2239 struct lpfc_vport *vport = pmb->vport; 2240 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2241 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 2242 2243 pmb->context1 = NULL; 2244 2245 /* Good status, call state machine */ 2246 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 2247 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2248 kfree(mp); 2249 mempool_free(pmb, phba->mbox_mem_pool); 2250 /* decrement the node reference count held for this callback 2251 * function. 2252 */ 2253 lpfc_nlp_put(ndlp); 2254 2255 return; 2256 } 2257 2258 static void 2259 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2260 { 2261 MAILBOX_t *mb = &pmb->u.mb; 2262 struct lpfc_vport *vport = pmb->vport; 2263 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2264 2265 switch (mb->mbxStatus) { 2266 case 0x0011: 2267 case 0x0020: 2268 case 0x9700: 2269 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 2270 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 2271 mb->mbxStatus); 2272 break; 2273 } 2274 spin_lock_irq(&phba->hbalock); 2275 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 2276 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2277 spin_unlock_irq(&phba->hbalock); 2278 vport->unreg_vpi_cmpl = VPORT_OK; 2279 mempool_free(pmb, phba->mbox_mem_pool); 2280 /* 2281 * This shost reference might have been taken at the beginning of 2282 * lpfc_vport_delete() 2283 */ 2284 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 2285 scsi_host_put(shost); 2286 } 2287 2288 int 2289 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 2290 { 2291 struct lpfc_hba *phba = vport->phba; 2292 LPFC_MBOXQ_t *mbox; 2293 int rc; 2294 2295 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2296 if (!mbox) 2297 return 1; 2298 2299 lpfc_unreg_vpi(phba, vport->vpi, mbox); 2300 mbox->vport = vport; 2301 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 2302 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 2303 if (rc == MBX_NOT_FINISHED) { 2304 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 2305 "1800 Could not issue unreg_vpi\n"); 2306 mempool_free(mbox, phba->mbox_mem_pool); 2307 vport->unreg_vpi_cmpl = VPORT_ERROR; 2308 return rc; 2309 } 2310 return 0; 2311 } 2312 2313 static void 2314 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2315 { 2316 struct lpfc_vport *vport = pmb->vport; 2317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2318 MAILBOX_t *mb = &pmb->u.mb; 2319 2320 switch (mb->mbxStatus) { 2321 case 0x0011: 2322 case 0x9601: 2323 case 0x9602: 2324 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 2325 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 2326 mb->mbxStatus); 2327 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2328 spin_lock_irq(shost->host_lock); 2329 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2330 spin_unlock_irq(shost->host_lock); 2331 vport->fc_myDID = 0; 2332 goto out; 2333 } 2334 2335 vport->vpi_state |= LPFC_VPI_REGISTERED; 2336 vport->num_disc_nodes = 0; 2337 /* go thru NPR list and issue ELS PLOGIs */ 2338 if (vport->fc_npr_cnt) 2339 lpfc_els_disc_plogi(vport); 2340 2341 if (!vport->num_disc_nodes) { 2342 spin_lock_irq(shost->host_lock); 2343 vport->fc_flag &= ~FC_NDISC_ACTIVE; 2344 spin_unlock_irq(shost->host_lock); 2345 lpfc_can_disctmo(vport); 2346 } 2347 vport->port_state = LPFC_VPORT_READY; 2348 2349 out: 2350 mempool_free(pmb, phba->mbox_mem_pool); 2351 return; 2352 } 2353 2354 /** 2355 * lpfc_create_static_vport - Read HBA config region to create static vports. 2356 * @phba: pointer to lpfc hba data structure. 2357 * 2358 * This routine issue a DUMP mailbox command for config region 22 to get 2359 * the list of static vports to be created. The function create vports 2360 * based on the information returned from the HBA. 2361 **/ 2362 void 2363 lpfc_create_static_vport(struct lpfc_hba *phba) 2364 { 2365 LPFC_MBOXQ_t *pmb = NULL; 2366 MAILBOX_t *mb; 2367 struct static_vport_info *vport_info; 2368 int rc = 0, i; 2369 struct fc_vport_identifiers vport_id; 2370 struct fc_vport *new_fc_vport; 2371 struct Scsi_Host *shost; 2372 struct lpfc_vport *vport; 2373 uint16_t offset = 0; 2374 uint8_t *vport_buff; 2375 struct lpfc_dmabuf *mp; 2376 uint32_t byte_count = 0; 2377 2378 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2379 if (!pmb) { 2380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2381 "0542 lpfc_create_static_vport failed to" 2382 " allocate mailbox memory\n"); 2383 return; 2384 } 2385 2386 mb = &pmb->u.mb; 2387 2388 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 2389 if (!vport_info) { 2390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2391 "0543 lpfc_create_static_vport failed to" 2392 " allocate vport_info\n"); 2393 mempool_free(pmb, phba->mbox_mem_pool); 2394 return; 2395 } 2396 2397 vport_buff = (uint8_t *) vport_info; 2398 do { 2399 if (lpfc_dump_static_vport(phba, pmb, offset)) 2400 goto out; 2401 2402 pmb->vport = phba->pport; 2403 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO); 2404 2405 if ((rc != MBX_SUCCESS) || mb->mbxStatus) { 2406 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2407 "0544 lpfc_create_static_vport failed to" 2408 " issue dump mailbox command ret 0x%x " 2409 "status 0x%x\n", 2410 rc, mb->mbxStatus); 2411 goto out; 2412 } 2413 2414 if (phba->sli_rev == LPFC_SLI_REV4) { 2415 byte_count = pmb->u.mqe.un.mb_words[5]; 2416 mp = (struct lpfc_dmabuf *) pmb->context2; 2417 if (byte_count > sizeof(struct static_vport_info) - 2418 offset) 2419 byte_count = sizeof(struct static_vport_info) 2420 - offset; 2421 memcpy(vport_buff + offset, mp->virt, byte_count); 2422 offset += byte_count; 2423 } else { 2424 if (mb->un.varDmp.word_cnt > 2425 sizeof(struct static_vport_info) - offset) 2426 mb->un.varDmp.word_cnt = 2427 sizeof(struct static_vport_info) 2428 - offset; 2429 byte_count = mb->un.varDmp.word_cnt; 2430 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 2431 vport_buff + offset, 2432 byte_count); 2433 2434 offset += byte_count; 2435 } 2436 2437 } while (byte_count && 2438 offset < sizeof(struct static_vport_info)); 2439 2440 2441 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 2442 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 2443 != VPORT_INFO_REV)) { 2444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2445 "0545 lpfc_create_static_vport bad" 2446 " information header 0x%x 0x%x\n", 2447 le32_to_cpu(vport_info->signature), 2448 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 2449 2450 goto out; 2451 } 2452 2453 shost = lpfc_shost_from_vport(phba->pport); 2454 2455 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 2456 memset(&vport_id, 0, sizeof(vport_id)); 2457 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 2458 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 2459 if (!vport_id.port_name || !vport_id.node_name) 2460 continue; 2461 2462 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 2463 vport_id.vport_type = FC_PORTTYPE_NPIV; 2464 vport_id.disable = false; 2465 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 2466 2467 if (!new_fc_vport) { 2468 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2469 "0546 lpfc_create_static_vport failed to" 2470 " create vport\n"); 2471 continue; 2472 } 2473 2474 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 2475 vport->vport_flag |= STATIC_VPORT; 2476 } 2477 2478 out: 2479 kfree(vport_info); 2480 if (rc != MBX_TIMEOUT) { 2481 if (pmb->context2) { 2482 mp = (struct lpfc_dmabuf *) pmb->context2; 2483 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2484 kfree(mp); 2485 } 2486 mempool_free(pmb, phba->mbox_mem_pool); 2487 } 2488 2489 return; 2490 } 2491 2492 /* 2493 * This routine handles processing a Fabric REG_LOGIN mailbox 2494 * command upon completion. It is setup in the LPFC_MBOXQ 2495 * as the completion routine when the command is 2496 * handed off to the SLI layer. 2497 */ 2498 void 2499 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2500 { 2501 struct lpfc_vport *vport = pmb->vport; 2502 MAILBOX_t *mb = &pmb->u.mb; 2503 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2504 struct lpfc_nodelist *ndlp; 2505 2506 ndlp = (struct lpfc_nodelist *) pmb->context2; 2507 pmb->context1 = NULL; 2508 pmb->context2 = NULL; 2509 if (mb->mbxStatus) { 2510 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2511 "0258 Register Fabric login error: 0x%x\n", 2512 mb->mbxStatus); 2513 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2514 kfree(mp); 2515 mempool_free(pmb, phba->mbox_mem_pool); 2516 2517 if (phba->fc_topology == TOPOLOGY_LOOP) { 2518 /* FLOGI failed, use loop map to make discovery list */ 2519 lpfc_disc_list_loopmap(vport); 2520 2521 /* Start discovery */ 2522 lpfc_disc_start(vport); 2523 /* Decrement the reference count to ndlp after the 2524 * reference to the ndlp are done. 2525 */ 2526 lpfc_nlp_put(ndlp); 2527 return; 2528 } 2529 2530 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2531 /* Decrement the reference count to ndlp after the reference 2532 * to the ndlp are done. 2533 */ 2534 lpfc_nlp_put(ndlp); 2535 return; 2536 } 2537 2538 ndlp->nlp_rpi = mb->un.varWords[0]; 2539 ndlp->nlp_flag |= NLP_RPI_VALID; 2540 ndlp->nlp_type |= NLP_FABRIC; 2541 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2542 2543 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2544 lpfc_start_fdiscs(phba); 2545 lpfc_do_scr_ns_plogi(phba, vport); 2546 } 2547 2548 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2549 kfree(mp); 2550 mempool_free(pmb, phba->mbox_mem_pool); 2551 2552 /* Drop the reference count from the mbox at the end after 2553 * all the current reference to the ndlp have been done. 2554 */ 2555 lpfc_nlp_put(ndlp); 2556 return; 2557 } 2558 2559 /* 2560 * This routine handles processing a NameServer REG_LOGIN mailbox 2561 * command upon completion. It is setup in the LPFC_MBOXQ 2562 * as the completion routine when the command is 2563 * handed off to the SLI layer. 2564 */ 2565 void 2566 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2567 { 2568 MAILBOX_t *mb = &pmb->u.mb; 2569 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2570 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 2571 struct lpfc_vport *vport = pmb->vport; 2572 2573 if (mb->mbxStatus) { 2574 out: 2575 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2576 "0260 Register NameServer error: 0x%x\n", 2577 mb->mbxStatus); 2578 /* decrement the node reference count held for this 2579 * callback function. 2580 */ 2581 lpfc_nlp_put(ndlp); 2582 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2583 kfree(mp); 2584 mempool_free(pmb, phba->mbox_mem_pool); 2585 2586 /* If no other thread is using the ndlp, free it */ 2587 lpfc_nlp_not_used(ndlp); 2588 2589 if (phba->fc_topology == TOPOLOGY_LOOP) { 2590 /* 2591 * RegLogin failed, use loop map to make discovery 2592 * list 2593 */ 2594 lpfc_disc_list_loopmap(vport); 2595 2596 /* Start discovery */ 2597 lpfc_disc_start(vport); 2598 return; 2599 } 2600 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2601 return; 2602 } 2603 2604 pmb->context1 = NULL; 2605 2606 ndlp->nlp_rpi = mb->un.varWords[0]; 2607 ndlp->nlp_flag |= NLP_RPI_VALID; 2608 ndlp->nlp_type |= NLP_FABRIC; 2609 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2610 2611 if (vport->port_state < LPFC_VPORT_READY) { 2612 /* Link up discovery requires Fabric registration. */ 2613 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */ 2614 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 2615 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 2616 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 2617 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 2618 2619 /* Issue SCR just before NameServer GID_FT Query */ 2620 lpfc_issue_els_scr(vport, SCR_DID, 0); 2621 } 2622 2623 vport->fc_ns_retry = 0; 2624 /* Good status, issue CT Request to NameServer */ 2625 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 2626 /* Cannot issue NameServer Query, so finish up discovery */ 2627 goto out; 2628 } 2629 2630 /* decrement the node reference count held for this 2631 * callback function. 2632 */ 2633 lpfc_nlp_put(ndlp); 2634 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2635 kfree(mp); 2636 mempool_free(pmb, phba->mbox_mem_pool); 2637 2638 return; 2639 } 2640 2641 static void 2642 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2643 { 2644 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2645 struct fc_rport *rport; 2646 struct lpfc_rport_data *rdata; 2647 struct fc_rport_identifiers rport_ids; 2648 struct lpfc_hba *phba = vport->phba; 2649 2650 /* Remote port has reappeared. Re-register w/ FC transport */ 2651 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 2652 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 2653 rport_ids.port_id = ndlp->nlp_DID; 2654 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 2655 2656 /* 2657 * We leave our node pointer in rport->dd_data when we unregister a 2658 * FCP target port. But fc_remote_port_add zeros the space to which 2659 * rport->dd_data points. So, if we're reusing a previously 2660 * registered port, drop the reference that we took the last time we 2661 * registered the port. 2662 */ 2663 if (ndlp->rport && ndlp->rport->dd_data && 2664 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) 2665 lpfc_nlp_put(ndlp); 2666 2667 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 2668 "rport add: did:x%x flg:x%x type x%x", 2669 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 2670 2671 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 2672 if (!rport || !get_device(&rport->dev)) { 2673 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2674 "Warning: fc_remote_port_add failed\n"); 2675 return; 2676 } 2677 2678 /* initialize static port data */ 2679 rport->maxframe_size = ndlp->nlp_maxframe; 2680 rport->supported_classes = ndlp->nlp_class_sup; 2681 rdata = rport->dd_data; 2682 rdata->pnode = lpfc_nlp_get(ndlp); 2683 2684 if (ndlp->nlp_type & NLP_FCP_TARGET) 2685 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 2686 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 2687 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 2688 2689 2690 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 2691 fc_remote_port_rolechg(rport, rport_ids.roles); 2692 2693 if ((rport->scsi_target_id != -1) && 2694 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 2695 ndlp->nlp_sid = rport->scsi_target_id; 2696 } 2697 return; 2698 } 2699 2700 static void 2701 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 2702 { 2703 struct fc_rport *rport = ndlp->rport; 2704 2705 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 2706 "rport delete: did:x%x flg:x%x type x%x", 2707 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 2708 2709 fc_remote_port_delete(rport); 2710 2711 return; 2712 } 2713 2714 static void 2715 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 2716 { 2717 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2718 2719 spin_lock_irq(shost->host_lock); 2720 switch (state) { 2721 case NLP_STE_UNUSED_NODE: 2722 vport->fc_unused_cnt += count; 2723 break; 2724 case NLP_STE_PLOGI_ISSUE: 2725 vport->fc_plogi_cnt += count; 2726 break; 2727 case NLP_STE_ADISC_ISSUE: 2728 vport->fc_adisc_cnt += count; 2729 break; 2730 case NLP_STE_REG_LOGIN_ISSUE: 2731 vport->fc_reglogin_cnt += count; 2732 break; 2733 case NLP_STE_PRLI_ISSUE: 2734 vport->fc_prli_cnt += count; 2735 break; 2736 case NLP_STE_UNMAPPED_NODE: 2737 vport->fc_unmap_cnt += count; 2738 break; 2739 case NLP_STE_MAPPED_NODE: 2740 vport->fc_map_cnt += count; 2741 break; 2742 case NLP_STE_NPR_NODE: 2743 vport->fc_npr_cnt += count; 2744 break; 2745 } 2746 spin_unlock_irq(shost->host_lock); 2747 } 2748 2749 static void 2750 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2751 int old_state, int new_state) 2752 { 2753 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2754 2755 if (new_state == NLP_STE_UNMAPPED_NODE) { 2756 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 2757 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 2758 ndlp->nlp_type |= NLP_FC_NODE; 2759 } 2760 if (new_state == NLP_STE_MAPPED_NODE) 2761 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 2762 if (new_state == NLP_STE_NPR_NODE) 2763 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 2764 2765 /* Transport interface */ 2766 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 2767 old_state == NLP_STE_UNMAPPED_NODE)) { 2768 vport->phba->nport_event_cnt++; 2769 lpfc_unregister_remote_port(ndlp); 2770 } 2771 2772 if (new_state == NLP_STE_MAPPED_NODE || 2773 new_state == NLP_STE_UNMAPPED_NODE) { 2774 vport->phba->nport_event_cnt++; 2775 /* 2776 * Tell the fc transport about the port, if we haven't 2777 * already. If we have, and it's a scsi entity, be 2778 * sure to unblock any attached scsi devices 2779 */ 2780 lpfc_register_remote_port(vport, ndlp); 2781 } 2782 if ((new_state == NLP_STE_MAPPED_NODE) && 2783 (vport->stat_data_enabled)) { 2784 /* 2785 * A new target is discovered, if there is no buffer for 2786 * statistical data collection allocate buffer. 2787 */ 2788 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 2789 sizeof(struct lpfc_scsicmd_bkt), 2790 GFP_KERNEL); 2791 2792 if (!ndlp->lat_data) 2793 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 2794 "0286 lpfc_nlp_state_cleanup failed to " 2795 "allocate statistical data buffer DID " 2796 "0x%x\n", ndlp->nlp_DID); 2797 } 2798 /* 2799 * if we added to Mapped list, but the remote port 2800 * registration failed or assigned a target id outside 2801 * our presentable range - move the node to the 2802 * Unmapped List 2803 */ 2804 if (new_state == NLP_STE_MAPPED_NODE && 2805 (!ndlp->rport || 2806 ndlp->rport->scsi_target_id == -1 || 2807 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 2808 spin_lock_irq(shost->host_lock); 2809 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 2810 spin_unlock_irq(shost->host_lock); 2811 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2812 } 2813 } 2814 2815 static char * 2816 lpfc_nlp_state_name(char *buffer, size_t size, int state) 2817 { 2818 static char *states[] = { 2819 [NLP_STE_UNUSED_NODE] = "UNUSED", 2820 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 2821 [NLP_STE_ADISC_ISSUE] = "ADISC", 2822 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 2823 [NLP_STE_PRLI_ISSUE] = "PRLI", 2824 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 2825 [NLP_STE_MAPPED_NODE] = "MAPPED", 2826 [NLP_STE_NPR_NODE] = "NPR", 2827 }; 2828 2829 if (state < NLP_STE_MAX_STATE && states[state]) 2830 strlcpy(buffer, states[state], size); 2831 else 2832 snprintf(buffer, size, "unknown (%d)", state); 2833 return buffer; 2834 } 2835 2836 void 2837 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2838 int state) 2839 { 2840 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2841 int old_state = ndlp->nlp_state; 2842 char name1[16], name2[16]; 2843 2844 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 2845 "0904 NPort state transition x%06x, %s -> %s\n", 2846 ndlp->nlp_DID, 2847 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 2848 lpfc_nlp_state_name(name2, sizeof(name2), state)); 2849 2850 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2851 "node statechg did:x%x old:%d ste:%d", 2852 ndlp->nlp_DID, old_state, state); 2853 2854 if (old_state == NLP_STE_NPR_NODE && 2855 state != NLP_STE_NPR_NODE) 2856 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2857 if (old_state == NLP_STE_UNMAPPED_NODE) { 2858 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 2859 ndlp->nlp_type &= ~NLP_FC_NODE; 2860 } 2861 2862 if (list_empty(&ndlp->nlp_listp)) { 2863 spin_lock_irq(shost->host_lock); 2864 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 2865 spin_unlock_irq(shost->host_lock); 2866 } else if (old_state) 2867 lpfc_nlp_counters(vport, old_state, -1); 2868 2869 ndlp->nlp_state = state; 2870 lpfc_nlp_counters(vport, state, 1); 2871 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 2872 } 2873 2874 void 2875 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2876 { 2877 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2878 2879 if (list_empty(&ndlp->nlp_listp)) { 2880 spin_lock_irq(shost->host_lock); 2881 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 2882 spin_unlock_irq(shost->host_lock); 2883 } 2884 } 2885 2886 void 2887 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2888 { 2889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2890 2891 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2892 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 2893 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 2894 spin_lock_irq(shost->host_lock); 2895 list_del_init(&ndlp->nlp_listp); 2896 spin_unlock_irq(shost->host_lock); 2897 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 2898 NLP_STE_UNUSED_NODE); 2899 } 2900 2901 static void 2902 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2903 { 2904 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2905 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 2906 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 2907 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 2908 NLP_STE_UNUSED_NODE); 2909 } 2910 /** 2911 * lpfc_initialize_node - Initialize all fields of node object 2912 * @vport: Pointer to Virtual Port object. 2913 * @ndlp: Pointer to FC node object. 2914 * @did: FC_ID of the node. 2915 * 2916 * This function is always called when node object need to be initialized. 2917 * It initializes all the fields of the node object. Although the reference 2918 * to phba from @ndlp can be obtained indirectly through it's reference to 2919 * @vport, a direct reference to phba is taken here by @ndlp. This is due 2920 * to the life-span of the @ndlp might go beyond the existence of @vport as 2921 * the final release of ndlp is determined by its reference count. And, the 2922 * operation on @ndlp needs the reference to phba. 2923 **/ 2924 static inline void 2925 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2926 uint32_t did) 2927 { 2928 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 2929 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 2930 init_timer(&ndlp->nlp_delayfunc); 2931 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 2932 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 2933 ndlp->nlp_DID = did; 2934 ndlp->vport = vport; 2935 ndlp->phba = vport->phba; 2936 ndlp->nlp_sid = NLP_NO_SID; 2937 kref_init(&ndlp->kref); 2938 NLP_INT_NODE_ACT(ndlp); 2939 atomic_set(&ndlp->cmd_pending, 0); 2940 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; 2941 } 2942 2943 struct lpfc_nodelist * 2944 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2945 int state) 2946 { 2947 struct lpfc_hba *phba = vport->phba; 2948 uint32_t did; 2949 unsigned long flags; 2950 2951 if (!ndlp) 2952 return NULL; 2953 2954 spin_lock_irqsave(&phba->ndlp_lock, flags); 2955 /* The ndlp should not be in memory free mode */ 2956 if (NLP_CHK_FREE_REQ(ndlp)) { 2957 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2958 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 2959 "0277 lpfc_enable_node: ndlp:x%p " 2960 "usgmap:x%x refcnt:%d\n", 2961 (void *)ndlp, ndlp->nlp_usg_map, 2962 atomic_read(&ndlp->kref.refcount)); 2963 return NULL; 2964 } 2965 /* The ndlp should not already be in active mode */ 2966 if (NLP_CHK_NODE_ACT(ndlp)) { 2967 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2968 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 2969 "0278 lpfc_enable_node: ndlp:x%p " 2970 "usgmap:x%x refcnt:%d\n", 2971 (void *)ndlp, ndlp->nlp_usg_map, 2972 atomic_read(&ndlp->kref.refcount)); 2973 return NULL; 2974 } 2975 2976 /* Keep the original DID */ 2977 did = ndlp->nlp_DID; 2978 2979 /* re-initialize ndlp except of ndlp linked list pointer */ 2980 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 2981 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 2982 lpfc_initialize_node(vport, ndlp, did); 2983 2984 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2985 2986 if (state != NLP_STE_UNUSED_NODE) 2987 lpfc_nlp_set_state(vport, ndlp, state); 2988 2989 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2990 "node enable: did:x%x", 2991 ndlp->nlp_DID, 0, 0); 2992 return ndlp; 2993 } 2994 2995 void 2996 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2997 { 2998 /* 2999 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 3000 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 3001 * the ndlp from the vport. The ndlp marked as UNUSED on the list 3002 * until ALL other outstanding threads have completed. We check 3003 * that the ndlp not already in the UNUSED state before we proceed. 3004 */ 3005 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3006 return; 3007 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 3008 lpfc_nlp_put(ndlp); 3009 return; 3010 } 3011 3012 /* 3013 * Start / ReStart rescue timer for Discovery / RSCN handling 3014 */ 3015 void 3016 lpfc_set_disctmo(struct lpfc_vport *vport) 3017 { 3018 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3019 struct lpfc_hba *phba = vport->phba; 3020 uint32_t tmo; 3021 3022 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 3023 /* For FAN, timeout should be greater than edtov */ 3024 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 3025 } else { 3026 /* Normal discovery timeout should be > than ELS/CT timeout 3027 * FC spec states we need 3 * ratov for CT requests 3028 */ 3029 tmo = ((phba->fc_ratov * 3) + 3); 3030 } 3031 3032 3033 if (!timer_pending(&vport->fc_disctmo)) { 3034 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3035 "set disc timer: tmo:x%x state:x%x flg:x%x", 3036 tmo, vport->port_state, vport->fc_flag); 3037 } 3038 3039 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo); 3040 spin_lock_irq(shost->host_lock); 3041 vport->fc_flag |= FC_DISC_TMO; 3042 spin_unlock_irq(shost->host_lock); 3043 3044 /* Start Discovery Timer state <hba_state> */ 3045 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3046 "0247 Start Discovery Timer state x%x " 3047 "Data: x%x x%lx x%x x%x\n", 3048 vport->port_state, tmo, 3049 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 3050 vport->fc_adisc_cnt); 3051 3052 return; 3053 } 3054 3055 /* 3056 * Cancel rescue timer for Discovery / RSCN handling 3057 */ 3058 int 3059 lpfc_can_disctmo(struct lpfc_vport *vport) 3060 { 3061 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3062 unsigned long iflags; 3063 3064 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3065 "can disc timer: state:x%x rtry:x%x flg:x%x", 3066 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 3067 3068 /* Turn off discovery timer if its running */ 3069 if (vport->fc_flag & FC_DISC_TMO) { 3070 spin_lock_irqsave(shost->host_lock, iflags); 3071 vport->fc_flag &= ~FC_DISC_TMO; 3072 spin_unlock_irqrestore(shost->host_lock, iflags); 3073 del_timer_sync(&vport->fc_disctmo); 3074 spin_lock_irqsave(&vport->work_port_lock, iflags); 3075 vport->work_port_events &= ~WORKER_DISC_TMO; 3076 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 3077 } 3078 3079 /* Cancel Discovery Timer state <hba_state> */ 3080 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3081 "0248 Cancel Discovery Timer state x%x " 3082 "Data: x%x x%x x%x\n", 3083 vport->port_state, vport->fc_flag, 3084 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 3085 return 0; 3086 } 3087 3088 /* 3089 * Check specified ring for outstanding IOCB on the SLI queue 3090 * Return true if iocb matches the specified nport 3091 */ 3092 int 3093 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 3094 struct lpfc_sli_ring *pring, 3095 struct lpfc_iocbq *iocb, 3096 struct lpfc_nodelist *ndlp) 3097 { 3098 struct lpfc_sli *psli = &phba->sli; 3099 IOCB_t *icmd = &iocb->iocb; 3100 struct lpfc_vport *vport = ndlp->vport; 3101 3102 if (iocb->vport != vport) 3103 return 0; 3104 3105 if (pring->ringno == LPFC_ELS_RING) { 3106 switch (icmd->ulpCommand) { 3107 case CMD_GEN_REQUEST64_CR: 3108 if (iocb->context_un.ndlp == ndlp) 3109 return 1; 3110 case CMD_ELS_REQUEST64_CR: 3111 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 3112 return 1; 3113 case CMD_XMIT_ELS_RSP64_CX: 3114 if (iocb->context1 == (uint8_t *) ndlp) 3115 return 1; 3116 } 3117 } else if (pring->ringno == psli->extra_ring) { 3118 3119 } else if (pring->ringno == psli->fcp_ring) { 3120 /* Skip match check if waiting to relogin to FCP target */ 3121 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 3122 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 3123 return 0; 3124 } 3125 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 3126 return 1; 3127 } 3128 } else if (pring->ringno == psli->next_ring) { 3129 3130 } 3131 return 0; 3132 } 3133 3134 /* 3135 * Free resources / clean up outstanding I/Os 3136 * associated with nlp_rpi in the LPFC_NODELIST entry. 3137 */ 3138 static int 3139 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 3140 { 3141 LIST_HEAD(completions); 3142 struct lpfc_sli *psli; 3143 struct lpfc_sli_ring *pring; 3144 struct lpfc_iocbq *iocb, *next_iocb; 3145 uint32_t i; 3146 3147 lpfc_fabric_abort_nport(ndlp); 3148 3149 /* 3150 * Everything that matches on txcmplq will be returned 3151 * by firmware with a no rpi error. 3152 */ 3153 psli = &phba->sli; 3154 if (ndlp->nlp_flag & NLP_RPI_VALID) { 3155 /* Now process each ring */ 3156 for (i = 0; i < psli->num_rings; i++) { 3157 pring = &psli->ring[i]; 3158 3159 spin_lock_irq(&phba->hbalock); 3160 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 3161 list) { 3162 /* 3163 * Check to see if iocb matches the nport we are 3164 * looking for 3165 */ 3166 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 3167 ndlp))) { 3168 /* It matches, so deque and call compl 3169 with an error */ 3170 list_move_tail(&iocb->list, 3171 &completions); 3172 pring->txq_cnt--; 3173 } 3174 } 3175 spin_unlock_irq(&phba->hbalock); 3176 } 3177 } 3178 3179 /* Cancel all the IOCBs from the completions list */ 3180 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 3181 IOERR_SLI_ABORTED); 3182 3183 return 0; 3184 } 3185 3186 /* 3187 * Free rpi associated with LPFC_NODELIST entry. 3188 * This routine is called from lpfc_freenode(), when we are removing 3189 * a LPFC_NODELIST entry. It is also called if the driver initiates a 3190 * LOGO that completes successfully, and we are waiting to PLOGI back 3191 * to the remote NPort. In addition, it is called after we receive 3192 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 3193 * we are waiting to PLOGI back to the remote NPort. 3194 */ 3195 int 3196 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3197 { 3198 struct lpfc_hba *phba = vport->phba; 3199 LPFC_MBOXQ_t *mbox; 3200 int rc; 3201 3202 if (ndlp->nlp_flag & NLP_RPI_VALID) { 3203 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3204 if (mbox) { 3205 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox); 3206 mbox->vport = vport; 3207 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3208 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3209 if (rc == MBX_NOT_FINISHED) 3210 mempool_free(mbox, phba->mbox_mem_pool); 3211 } 3212 lpfc_no_rpi(phba, ndlp); 3213 ndlp->nlp_rpi = 0; 3214 ndlp->nlp_flag &= ~NLP_RPI_VALID; 3215 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3216 return 1; 3217 } 3218 return 0; 3219 } 3220 3221 void 3222 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 3223 { 3224 struct lpfc_hba *phba = vport->phba; 3225 LPFC_MBOXQ_t *mbox; 3226 int rc; 3227 3228 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3229 if (mbox) { 3230 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox); 3231 mbox->vport = vport; 3232 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3233 mbox->context1 = NULL; 3234 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 3235 if (rc != MBX_TIMEOUT) 3236 mempool_free(mbox, phba->mbox_mem_pool); 3237 3238 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 3239 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3240 "1836 Could not issue " 3241 "unreg_login(all_rpis) status %d\n", rc); 3242 } 3243 } 3244 3245 void 3246 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 3247 { 3248 struct lpfc_hba *phba = vport->phba; 3249 LPFC_MBOXQ_t *mbox; 3250 int rc; 3251 3252 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3253 if (mbox) { 3254 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox); 3255 mbox->vport = vport; 3256 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3257 mbox->context1 = NULL; 3258 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 3259 if (rc != MBX_TIMEOUT) 3260 mempool_free(mbox, phba->mbox_mem_pool); 3261 3262 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 3263 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3264 "1815 Could not issue " 3265 "unreg_did (default rpis) status %d\n", 3266 rc); 3267 } 3268 } 3269 3270 /* 3271 * Free resources associated with LPFC_NODELIST entry 3272 * so it can be freed. 3273 */ 3274 static int 3275 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3276 { 3277 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3278 struct lpfc_hba *phba = vport->phba; 3279 LPFC_MBOXQ_t *mb, *nextmb; 3280 struct lpfc_dmabuf *mp; 3281 3282 /* Cleanup node for NPort <nlp_DID> */ 3283 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3284 "0900 Cleanup node for NPort x%x " 3285 "Data: x%x x%x x%x\n", 3286 ndlp->nlp_DID, ndlp->nlp_flag, 3287 ndlp->nlp_state, ndlp->nlp_rpi); 3288 if (NLP_CHK_FREE_REQ(ndlp)) { 3289 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 3290 "0280 lpfc_cleanup_node: ndlp:x%p " 3291 "usgmap:x%x refcnt:%d\n", 3292 (void *)ndlp, ndlp->nlp_usg_map, 3293 atomic_read(&ndlp->kref.refcount)); 3294 lpfc_dequeue_node(vport, ndlp); 3295 } else { 3296 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 3297 "0281 lpfc_cleanup_node: ndlp:x%p " 3298 "usgmap:x%x refcnt:%d\n", 3299 (void *)ndlp, ndlp->nlp_usg_map, 3300 atomic_read(&ndlp->kref.refcount)); 3301 lpfc_disable_node(vport, ndlp); 3302 } 3303 3304 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 3305 if ((mb = phba->sli.mbox_active)) { 3306 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 3307 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 3308 mb->context2 = NULL; 3309 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3310 } 3311 } 3312 3313 spin_lock_irq(&phba->hbalock); 3314 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 3315 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 3316 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 3317 mp = (struct lpfc_dmabuf *) (mb->context1); 3318 if (mp) { 3319 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 3320 kfree(mp); 3321 } 3322 list_del(&mb->list); 3323 mempool_free(mb, phba->mbox_mem_pool); 3324 /* We shall not invoke the lpfc_nlp_put to decrement 3325 * the ndlp reference count as we are in the process 3326 * of lpfc_nlp_release. 3327 */ 3328 } 3329 } 3330 spin_unlock_irq(&phba->hbalock); 3331 3332 lpfc_els_abort(phba, ndlp); 3333 3334 spin_lock_irq(shost->host_lock); 3335 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 3336 spin_unlock_irq(shost->host_lock); 3337 3338 ndlp->nlp_last_elscmd = 0; 3339 del_timer_sync(&ndlp->nlp_delayfunc); 3340 3341 list_del_init(&ndlp->els_retry_evt.evt_listp); 3342 list_del_init(&ndlp->dev_loss_evt.evt_listp); 3343 3344 lpfc_unreg_rpi(vport, ndlp); 3345 3346 return 0; 3347 } 3348 3349 /* 3350 * Check to see if we can free the nlp back to the freelist. 3351 * If we are in the middle of using the nlp in the discovery state 3352 * machine, defer the free till we reach the end of the state machine. 3353 */ 3354 static void 3355 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3356 { 3357 struct lpfc_hba *phba = vport->phba; 3358 struct lpfc_rport_data *rdata; 3359 LPFC_MBOXQ_t *mbox; 3360 int rc; 3361 3362 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3363 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 3364 !(ndlp->nlp_flag & NLP_RPI_VALID)) { 3365 /* For this case we need to cleanup the default rpi 3366 * allocated by the firmware. 3367 */ 3368 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 3369 != NULL) { 3370 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 3371 (uint8_t *) &vport->fc_sparam, mbox, 0); 3372 if (rc) { 3373 mempool_free(mbox, phba->mbox_mem_pool); 3374 } 3375 else { 3376 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 3377 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 3378 mbox->vport = vport; 3379 mbox->context2 = NULL; 3380 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3381 if (rc == MBX_NOT_FINISHED) { 3382 mempool_free(mbox, phba->mbox_mem_pool); 3383 } 3384 } 3385 } 3386 } 3387 lpfc_cleanup_node(vport, ndlp); 3388 3389 /* 3390 * We can get here with a non-NULL ndlp->rport because when we 3391 * unregister a rport we don't break the rport/node linkage. So if we 3392 * do, make sure we don't leaving any dangling pointers behind. 3393 */ 3394 if (ndlp->rport) { 3395 rdata = ndlp->rport->dd_data; 3396 rdata->pnode = NULL; 3397 ndlp->rport = NULL; 3398 } 3399 } 3400 3401 static int 3402 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3403 uint32_t did) 3404 { 3405 D_ID mydid, ndlpdid, matchdid; 3406 3407 if (did == Bcast_DID) 3408 return 0; 3409 3410 /* First check for Direct match */ 3411 if (ndlp->nlp_DID == did) 3412 return 1; 3413 3414 /* Next check for area/domain identically equals 0 match */ 3415 mydid.un.word = vport->fc_myDID; 3416 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 3417 return 0; 3418 } 3419 3420 matchdid.un.word = did; 3421 ndlpdid.un.word = ndlp->nlp_DID; 3422 if (matchdid.un.b.id == ndlpdid.un.b.id) { 3423 if ((mydid.un.b.domain == matchdid.un.b.domain) && 3424 (mydid.un.b.area == matchdid.un.b.area)) { 3425 if ((ndlpdid.un.b.domain == 0) && 3426 (ndlpdid.un.b.area == 0)) { 3427 if (ndlpdid.un.b.id) 3428 return 1; 3429 } 3430 return 0; 3431 } 3432 3433 matchdid.un.word = ndlp->nlp_DID; 3434 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 3435 (mydid.un.b.area == ndlpdid.un.b.area)) { 3436 if ((matchdid.un.b.domain == 0) && 3437 (matchdid.un.b.area == 0)) { 3438 if (matchdid.un.b.id) 3439 return 1; 3440 } 3441 } 3442 } 3443 return 0; 3444 } 3445 3446 /* Search for a nodelist entry */ 3447 static struct lpfc_nodelist * 3448 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 3449 { 3450 struct lpfc_nodelist *ndlp; 3451 uint32_t data1; 3452 3453 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3454 if (lpfc_matchdid(vport, ndlp, did)) { 3455 data1 = (((uint32_t) ndlp->nlp_state << 24) | 3456 ((uint32_t) ndlp->nlp_xri << 16) | 3457 ((uint32_t) ndlp->nlp_type << 8) | 3458 ((uint32_t) ndlp->nlp_rpi & 0xff)); 3459 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3460 "0929 FIND node DID " 3461 "Data: x%p x%x x%x x%x\n", 3462 ndlp, ndlp->nlp_DID, 3463 ndlp->nlp_flag, data1); 3464 return ndlp; 3465 } 3466 } 3467 3468 /* FIND node did <did> NOT FOUND */ 3469 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3470 "0932 FIND node did x%x NOT FOUND.\n", did); 3471 return NULL; 3472 } 3473 3474 struct lpfc_nodelist * 3475 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 3476 { 3477 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3478 struct lpfc_nodelist *ndlp; 3479 3480 spin_lock_irq(shost->host_lock); 3481 ndlp = __lpfc_findnode_did(vport, did); 3482 spin_unlock_irq(shost->host_lock); 3483 return ndlp; 3484 } 3485 3486 struct lpfc_nodelist * 3487 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 3488 { 3489 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3490 struct lpfc_nodelist *ndlp; 3491 3492 ndlp = lpfc_findnode_did(vport, did); 3493 if (!ndlp) { 3494 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 3495 lpfc_rscn_payload_check(vport, did) == 0) 3496 return NULL; 3497 ndlp = (struct lpfc_nodelist *) 3498 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 3499 if (!ndlp) 3500 return NULL; 3501 lpfc_nlp_init(vport, ndlp, did); 3502 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 3503 spin_lock_irq(shost->host_lock); 3504 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3505 spin_unlock_irq(shost->host_lock); 3506 return ndlp; 3507 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3508 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 3509 if (!ndlp) 3510 return NULL; 3511 spin_lock_irq(shost->host_lock); 3512 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3513 spin_unlock_irq(shost->host_lock); 3514 return ndlp; 3515 } 3516 3517 if ((vport->fc_flag & FC_RSCN_MODE) && 3518 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 3519 if (lpfc_rscn_payload_check(vport, did)) { 3520 /* If we've already recieved a PLOGI from this NPort 3521 * we don't need to try to discover it again. 3522 */ 3523 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 3524 return NULL; 3525 3526 /* Since this node is marked for discovery, 3527 * delay timeout is not needed. 3528 */ 3529 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3530 spin_lock_irq(shost->host_lock); 3531 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3532 spin_unlock_irq(shost->host_lock); 3533 } else 3534 ndlp = NULL; 3535 } else { 3536 /* If we've already recieved a PLOGI from this NPort, 3537 * or we are already in the process of discovery on it, 3538 * we don't need to try to discover it again. 3539 */ 3540 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 3541 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 3542 ndlp->nlp_flag & NLP_RCV_PLOGI) 3543 return NULL; 3544 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 3545 spin_lock_irq(shost->host_lock); 3546 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3547 spin_unlock_irq(shost->host_lock); 3548 } 3549 return ndlp; 3550 } 3551 3552 /* Build a list of nodes to discover based on the loopmap */ 3553 void 3554 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 3555 { 3556 struct lpfc_hba *phba = vport->phba; 3557 int j; 3558 uint32_t alpa, index; 3559 3560 if (!lpfc_is_link_up(phba)) 3561 return; 3562 3563 if (phba->fc_topology != TOPOLOGY_LOOP) 3564 return; 3565 3566 /* Check for loop map present or not */ 3567 if (phba->alpa_map[0]) { 3568 for (j = 1; j <= phba->alpa_map[0]; j++) { 3569 alpa = phba->alpa_map[j]; 3570 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 3571 continue; 3572 lpfc_setup_disc_node(vport, alpa); 3573 } 3574 } else { 3575 /* No alpamap, so try all alpa's */ 3576 for (j = 0; j < FC_MAXLOOP; j++) { 3577 /* If cfg_scan_down is set, start from highest 3578 * ALPA (0xef) to lowest (0x1). 3579 */ 3580 if (vport->cfg_scan_down) 3581 index = j; 3582 else 3583 index = FC_MAXLOOP - j - 1; 3584 alpa = lpfcAlpaArray[index]; 3585 if ((vport->fc_myDID & 0xff) == alpa) 3586 continue; 3587 lpfc_setup_disc_node(vport, alpa); 3588 } 3589 } 3590 return; 3591 } 3592 3593 void 3594 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 3595 { 3596 LPFC_MBOXQ_t *mbox; 3597 struct lpfc_sli *psli = &phba->sli; 3598 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 3599 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 3600 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 3601 int rc; 3602 3603 /* 3604 * if it's not a physical port or if we already send 3605 * clear_la then don't send it. 3606 */ 3607 if ((phba->link_state >= LPFC_CLEAR_LA) || 3608 (vport->port_type != LPFC_PHYSICAL_PORT) || 3609 (phba->sli_rev == LPFC_SLI_REV4)) 3610 return; 3611 3612 /* Link up discovery */ 3613 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 3614 phba->link_state = LPFC_CLEAR_LA; 3615 lpfc_clear_la(phba, mbox); 3616 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 3617 mbox->vport = vport; 3618 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3619 if (rc == MBX_NOT_FINISHED) { 3620 mempool_free(mbox, phba->mbox_mem_pool); 3621 lpfc_disc_flush_list(vport); 3622 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 3623 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 3624 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 3625 phba->link_state = LPFC_HBA_ERROR; 3626 } 3627 } 3628 } 3629 3630 /* Reg_vpi to tell firmware to resume normal operations */ 3631 void 3632 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 3633 { 3634 LPFC_MBOXQ_t *regvpimbox; 3635 3636 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3637 if (regvpimbox) { 3638 lpfc_reg_vpi(vport, regvpimbox); 3639 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 3640 regvpimbox->vport = vport; 3641 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 3642 == MBX_NOT_FINISHED) { 3643 mempool_free(regvpimbox, phba->mbox_mem_pool); 3644 } 3645 } 3646 } 3647 3648 /* Start Link up / RSCN discovery on NPR nodes */ 3649 void 3650 lpfc_disc_start(struct lpfc_vport *vport) 3651 { 3652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3653 struct lpfc_hba *phba = vport->phba; 3654 uint32_t num_sent; 3655 uint32_t clear_la_pending; 3656 int did_changed; 3657 3658 if (!lpfc_is_link_up(phba)) 3659 return; 3660 3661 if (phba->link_state == LPFC_CLEAR_LA) 3662 clear_la_pending = 1; 3663 else 3664 clear_la_pending = 0; 3665 3666 if (vport->port_state < LPFC_VPORT_READY) 3667 vport->port_state = LPFC_DISC_AUTH; 3668 3669 lpfc_set_disctmo(vport); 3670 3671 if (vport->fc_prevDID == vport->fc_myDID) 3672 did_changed = 0; 3673 else 3674 did_changed = 1; 3675 3676 vport->fc_prevDID = vport->fc_myDID; 3677 vport->num_disc_nodes = 0; 3678 3679 /* Start Discovery state <hba_state> */ 3680 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3681 "0202 Start Discovery hba state x%x " 3682 "Data: x%x x%x x%x\n", 3683 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 3684 vport->fc_adisc_cnt); 3685 3686 /* First do ADISCs - if any */ 3687 num_sent = lpfc_els_disc_adisc(vport); 3688 3689 if (num_sent) 3690 return; 3691 3692 /* 3693 * For SLI3, cmpl_reg_vpi will set port_state to READY, and 3694 * continue discovery. 3695 */ 3696 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 3697 !(vport->fc_flag & FC_PT2PT) && 3698 !(vport->fc_flag & FC_RSCN_MODE) && 3699 (phba->sli_rev < LPFC_SLI_REV4)) { 3700 lpfc_issue_reg_vpi(phba, vport); 3701 return; 3702 } 3703 3704 /* 3705 * For SLI2, we need to set port_state to READY and continue 3706 * discovery. 3707 */ 3708 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 3709 /* If we get here, there is nothing to ADISC */ 3710 if (vport->port_type == LPFC_PHYSICAL_PORT) 3711 lpfc_issue_clear_la(phba, vport); 3712 3713 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 3714 vport->num_disc_nodes = 0; 3715 /* go thru NPR nodes and issue ELS PLOGIs */ 3716 if (vport->fc_npr_cnt) 3717 lpfc_els_disc_plogi(vport); 3718 3719 if (!vport->num_disc_nodes) { 3720 spin_lock_irq(shost->host_lock); 3721 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3722 spin_unlock_irq(shost->host_lock); 3723 lpfc_can_disctmo(vport); 3724 } 3725 } 3726 vport->port_state = LPFC_VPORT_READY; 3727 } else { 3728 /* Next do PLOGIs - if any */ 3729 num_sent = lpfc_els_disc_plogi(vport); 3730 3731 if (num_sent) 3732 return; 3733 3734 if (vport->fc_flag & FC_RSCN_MODE) { 3735 /* Check to see if more RSCNs came in while we 3736 * were processing this one. 3737 */ 3738 if ((vport->fc_rscn_id_cnt == 0) && 3739 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 3740 spin_lock_irq(shost->host_lock); 3741 vport->fc_flag &= ~FC_RSCN_MODE; 3742 spin_unlock_irq(shost->host_lock); 3743 lpfc_can_disctmo(vport); 3744 } else 3745 lpfc_els_handle_rscn(vport); 3746 } 3747 } 3748 return; 3749 } 3750 3751 /* 3752 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 3753 * ring the match the sppecified nodelist. 3754 */ 3755 static void 3756 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 3757 { 3758 LIST_HEAD(completions); 3759 struct lpfc_sli *psli; 3760 IOCB_t *icmd; 3761 struct lpfc_iocbq *iocb, *next_iocb; 3762 struct lpfc_sli_ring *pring; 3763 3764 psli = &phba->sli; 3765 pring = &psli->ring[LPFC_ELS_RING]; 3766 3767 /* Error matching iocb on txq or txcmplq 3768 * First check the txq. 3769 */ 3770 spin_lock_irq(&phba->hbalock); 3771 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 3772 if (iocb->context1 != ndlp) { 3773 continue; 3774 } 3775 icmd = &iocb->iocb; 3776 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 3777 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 3778 3779 list_move_tail(&iocb->list, &completions); 3780 pring->txq_cnt--; 3781 } 3782 } 3783 3784 /* Next check the txcmplq */ 3785 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 3786 if (iocb->context1 != ndlp) { 3787 continue; 3788 } 3789 icmd = &iocb->iocb; 3790 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 3791 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 3792 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 3793 } 3794 } 3795 spin_unlock_irq(&phba->hbalock); 3796 3797 /* Cancel all the IOCBs from the completions list */ 3798 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 3799 IOERR_SLI_ABORTED); 3800 } 3801 3802 static void 3803 lpfc_disc_flush_list(struct lpfc_vport *vport) 3804 { 3805 struct lpfc_nodelist *ndlp, *next_ndlp; 3806 struct lpfc_hba *phba = vport->phba; 3807 3808 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 3809 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 3810 nlp_listp) { 3811 if (!NLP_CHK_NODE_ACT(ndlp)) 3812 continue; 3813 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 3814 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 3815 lpfc_free_tx(phba, ndlp); 3816 } 3817 } 3818 } 3819 } 3820 3821 void 3822 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 3823 { 3824 lpfc_els_flush_rscn(vport); 3825 lpfc_els_flush_cmd(vport); 3826 lpfc_disc_flush_list(vport); 3827 } 3828 3829 /*****************************************************************************/ 3830 /* 3831 * NAME: lpfc_disc_timeout 3832 * 3833 * FUNCTION: Fibre Channel driver discovery timeout routine. 3834 * 3835 * EXECUTION ENVIRONMENT: interrupt only 3836 * 3837 * CALLED FROM: 3838 * Timer function 3839 * 3840 * RETURNS: 3841 * none 3842 */ 3843 /*****************************************************************************/ 3844 void 3845 lpfc_disc_timeout(unsigned long ptr) 3846 { 3847 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 3848 struct lpfc_hba *phba = vport->phba; 3849 uint32_t tmo_posted; 3850 unsigned long flags = 0; 3851 3852 if (unlikely(!phba)) 3853 return; 3854 3855 spin_lock_irqsave(&vport->work_port_lock, flags); 3856 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 3857 if (!tmo_posted) 3858 vport->work_port_events |= WORKER_DISC_TMO; 3859 spin_unlock_irqrestore(&vport->work_port_lock, flags); 3860 3861 if (!tmo_posted) 3862 lpfc_worker_wake_up(phba); 3863 return; 3864 } 3865 3866 static void 3867 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 3868 { 3869 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3870 struct lpfc_hba *phba = vport->phba; 3871 struct lpfc_sli *psli = &phba->sli; 3872 struct lpfc_nodelist *ndlp, *next_ndlp; 3873 LPFC_MBOXQ_t *initlinkmbox; 3874 int rc, clrlaerr = 0; 3875 3876 if (!(vport->fc_flag & FC_DISC_TMO)) 3877 return; 3878 3879 spin_lock_irq(shost->host_lock); 3880 vport->fc_flag &= ~FC_DISC_TMO; 3881 spin_unlock_irq(shost->host_lock); 3882 3883 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3884 "disc timeout: state:x%x rtry:x%x flg:x%x", 3885 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 3886 3887 switch (vport->port_state) { 3888 3889 case LPFC_LOCAL_CFG_LINK: 3890 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 3891 * FAN 3892 */ 3893 /* FAN timeout */ 3894 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 3895 "0221 FAN timeout\n"); 3896 /* Start discovery by sending FLOGI, clean up old rpis */ 3897 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 3898 nlp_listp) { 3899 if (!NLP_CHK_NODE_ACT(ndlp)) 3900 continue; 3901 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 3902 continue; 3903 if (ndlp->nlp_type & NLP_FABRIC) { 3904 /* Clean up the ndlp on Fabric connections */ 3905 lpfc_drop_node(vport, ndlp); 3906 3907 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 3908 /* Fail outstanding IO now since device 3909 * is marked for PLOGI. 3910 */ 3911 lpfc_unreg_rpi(vport, ndlp); 3912 } 3913 } 3914 if (vport->port_state != LPFC_FLOGI) { 3915 lpfc_initial_flogi(vport); 3916 return; 3917 } 3918 break; 3919 3920 case LPFC_FDISC: 3921 case LPFC_FLOGI: 3922 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 3923 /* Initial FLOGI timeout */ 3924 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3925 "0222 Initial %s timeout\n", 3926 vport->vpi ? "FDISC" : "FLOGI"); 3927 3928 /* Assume no Fabric and go on with discovery. 3929 * Check for outstanding ELS FLOGI to abort. 3930 */ 3931 3932 /* FLOGI failed, so just use loop map to make discovery list */ 3933 lpfc_disc_list_loopmap(vport); 3934 3935 /* Start discovery */ 3936 lpfc_disc_start(vport); 3937 break; 3938 3939 case LPFC_FABRIC_CFG_LINK: 3940 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 3941 NameServer login */ 3942 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3943 "0223 Timeout while waiting for " 3944 "NameServer login\n"); 3945 /* Next look for NameServer ndlp */ 3946 ndlp = lpfc_findnode_did(vport, NameServer_DID); 3947 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 3948 lpfc_els_abort(phba, ndlp); 3949 3950 /* ReStart discovery */ 3951 goto restart_disc; 3952 3953 case LPFC_NS_QRY: 3954 /* Check for wait for NameServer Rsp timeout */ 3955 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3956 "0224 NameServer Query timeout " 3957 "Data: x%x x%x\n", 3958 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 3959 3960 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 3961 /* Try it one more time */ 3962 vport->fc_ns_retry++; 3963 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 3964 vport->fc_ns_retry, 0); 3965 if (rc == 0) 3966 break; 3967 } 3968 vport->fc_ns_retry = 0; 3969 3970 restart_disc: 3971 /* 3972 * Discovery is over. 3973 * set port_state to PORT_READY if SLI2. 3974 * cmpl_reg_vpi will set port_state to READY for SLI3. 3975 */ 3976 if (phba->sli_rev < LPFC_SLI_REV4) { 3977 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3978 lpfc_issue_reg_vpi(phba, vport); 3979 else { /* NPIV Not enabled */ 3980 lpfc_issue_clear_la(phba, vport); 3981 vport->port_state = LPFC_VPORT_READY; 3982 } 3983 } 3984 3985 /* Setup and issue mailbox INITIALIZE LINK command */ 3986 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3987 if (!initlinkmbox) { 3988 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3989 "0206 Device Discovery " 3990 "completion error\n"); 3991 phba->link_state = LPFC_HBA_ERROR; 3992 break; 3993 } 3994 3995 lpfc_linkdown(phba); 3996 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 3997 phba->cfg_link_speed); 3998 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 3999 initlinkmbox->vport = vport; 4000 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4001 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 4002 lpfc_set_loopback_flag(phba); 4003 if (rc == MBX_NOT_FINISHED) 4004 mempool_free(initlinkmbox, phba->mbox_mem_pool); 4005 4006 break; 4007 4008 case LPFC_DISC_AUTH: 4009 /* Node Authentication timeout */ 4010 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 4011 "0227 Node Authentication timeout\n"); 4012 lpfc_disc_flush_list(vport); 4013 4014 /* 4015 * set port_state to PORT_READY if SLI2. 4016 * cmpl_reg_vpi will set port_state to READY for SLI3. 4017 */ 4018 if (phba->sli_rev < LPFC_SLI_REV4) { 4019 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 4020 lpfc_issue_reg_vpi(phba, vport); 4021 else { /* NPIV Not enabled */ 4022 lpfc_issue_clear_la(phba, vport); 4023 vport->port_state = LPFC_VPORT_READY; 4024 } 4025 } 4026 break; 4027 4028 case LPFC_VPORT_READY: 4029 if (vport->fc_flag & FC_RSCN_MODE) { 4030 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 4031 "0231 RSCN timeout Data: x%x " 4032 "x%x\n", 4033 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 4034 4035 /* Cleanup any outstanding ELS commands */ 4036 lpfc_els_flush_cmd(vport); 4037 4038 lpfc_els_flush_rscn(vport); 4039 lpfc_disc_flush_list(vport); 4040 } 4041 break; 4042 4043 default: 4044 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 4045 "0273 Unexpected discovery timeout, " 4046 "vport State x%x\n", vport->port_state); 4047 break; 4048 } 4049 4050 switch (phba->link_state) { 4051 case LPFC_CLEAR_LA: 4052 /* CLEAR LA timeout */ 4053 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 4054 "0228 CLEAR LA timeout\n"); 4055 clrlaerr = 1; 4056 break; 4057 4058 case LPFC_LINK_UP: 4059 lpfc_issue_clear_la(phba, vport); 4060 /* Drop thru */ 4061 case LPFC_LINK_UNKNOWN: 4062 case LPFC_WARM_START: 4063 case LPFC_INIT_START: 4064 case LPFC_INIT_MBX_CMDS: 4065 case LPFC_LINK_DOWN: 4066 case LPFC_HBA_ERROR: 4067 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 4068 "0230 Unexpected timeout, hba link " 4069 "state x%x\n", phba->link_state); 4070 clrlaerr = 1; 4071 break; 4072 4073 case LPFC_HBA_READY: 4074 break; 4075 } 4076 4077 if (clrlaerr) { 4078 lpfc_disc_flush_list(vport); 4079 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 4080 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 4081 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 4082 vport->port_state = LPFC_VPORT_READY; 4083 } 4084 4085 return; 4086 } 4087 4088 /* 4089 * This routine handles processing a NameServer REG_LOGIN mailbox 4090 * command upon completion. It is setup in the LPFC_MBOXQ 4091 * as the completion routine when the command is 4092 * handed off to the SLI layer. 4093 */ 4094 void 4095 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4096 { 4097 MAILBOX_t *mb = &pmb->u.mb; 4098 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 4099 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 4100 struct lpfc_vport *vport = pmb->vport; 4101 4102 pmb->context1 = NULL; 4103 4104 ndlp->nlp_rpi = mb->un.varWords[0]; 4105 ndlp->nlp_flag |= NLP_RPI_VALID; 4106 ndlp->nlp_type |= NLP_FABRIC; 4107 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4108 4109 /* 4110 * Start issuing Fabric-Device Management Interface (FDMI) command to 4111 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if 4112 * fdmi-on=2 (supporting RPA/hostnmae) 4113 */ 4114 4115 if (vport->cfg_fdmi_on == 1) 4116 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA); 4117 else 4118 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60); 4119 4120 /* decrement the node reference count held for this callback 4121 * function. 4122 */ 4123 lpfc_nlp_put(ndlp); 4124 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4125 kfree(mp); 4126 mempool_free(pmb, phba->mbox_mem_pool); 4127 4128 return; 4129 } 4130 4131 static int 4132 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 4133 { 4134 uint16_t *rpi = param; 4135 4136 return ndlp->nlp_rpi == *rpi; 4137 } 4138 4139 static int 4140 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 4141 { 4142 return memcmp(&ndlp->nlp_portname, param, 4143 sizeof(ndlp->nlp_portname)) == 0; 4144 } 4145 4146 static struct lpfc_nodelist * 4147 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 4148 { 4149 struct lpfc_nodelist *ndlp; 4150 4151 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4152 if (filter(ndlp, param)) 4153 return ndlp; 4154 } 4155 return NULL; 4156 } 4157 4158 /* 4159 * This routine looks up the ndlp lists for the given RPI. If rpi found it 4160 * returns the node list element pointer else return NULL. 4161 */ 4162 struct lpfc_nodelist * 4163 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 4164 { 4165 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 4166 } 4167 4168 /* 4169 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 4170 * returns the node element list pointer else return NULL. 4171 */ 4172 struct lpfc_nodelist * 4173 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 4174 { 4175 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4176 struct lpfc_nodelist *ndlp; 4177 4178 spin_lock_irq(shost->host_lock); 4179 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 4180 spin_unlock_irq(shost->host_lock); 4181 return ndlp; 4182 } 4183 4184 void 4185 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4186 uint32_t did) 4187 { 4188 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 4189 4190 lpfc_initialize_node(vport, ndlp, did); 4191 INIT_LIST_HEAD(&ndlp->nlp_listp); 4192 4193 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4194 "node init: did:x%x", 4195 ndlp->nlp_DID, 0, 0); 4196 4197 return; 4198 } 4199 4200 /* This routine releases all resources associated with a specifc NPort's ndlp 4201 * and mempool_free's the nodelist. 4202 */ 4203 static void 4204 lpfc_nlp_release(struct kref *kref) 4205 { 4206 struct lpfc_hba *phba; 4207 unsigned long flags; 4208 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 4209 kref); 4210 4211 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4212 "node release: did:x%x flg:x%x type:x%x", 4213 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4214 4215 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4216 "0279 lpfc_nlp_release: ndlp:x%p " 4217 "usgmap:x%x refcnt:%d\n", 4218 (void *)ndlp, ndlp->nlp_usg_map, 4219 atomic_read(&ndlp->kref.refcount)); 4220 4221 /* remove ndlp from action. */ 4222 lpfc_nlp_remove(ndlp->vport, ndlp); 4223 4224 /* clear the ndlp active flag for all release cases */ 4225 phba = ndlp->phba; 4226 spin_lock_irqsave(&phba->ndlp_lock, flags); 4227 NLP_CLR_NODE_ACT(ndlp); 4228 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4229 4230 /* free ndlp memory for final ndlp release */ 4231 if (NLP_CHK_FREE_REQ(ndlp)) { 4232 kfree(ndlp->lat_data); 4233 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 4234 } 4235 } 4236 4237 /* This routine bumps the reference count for a ndlp structure to ensure 4238 * that one discovery thread won't free a ndlp while another discovery thread 4239 * is using it. 4240 */ 4241 struct lpfc_nodelist * 4242 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 4243 { 4244 struct lpfc_hba *phba; 4245 unsigned long flags; 4246 4247 if (ndlp) { 4248 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4249 "node get: did:x%x flg:x%x refcnt:x%x", 4250 ndlp->nlp_DID, ndlp->nlp_flag, 4251 atomic_read(&ndlp->kref.refcount)); 4252 /* The check of ndlp usage to prevent incrementing the 4253 * ndlp reference count that is in the process of being 4254 * released. 4255 */ 4256 phba = ndlp->phba; 4257 spin_lock_irqsave(&phba->ndlp_lock, flags); 4258 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 4259 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4260 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 4261 "0276 lpfc_nlp_get: ndlp:x%p " 4262 "usgmap:x%x refcnt:%d\n", 4263 (void *)ndlp, ndlp->nlp_usg_map, 4264 atomic_read(&ndlp->kref.refcount)); 4265 return NULL; 4266 } else 4267 kref_get(&ndlp->kref); 4268 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4269 } 4270 return ndlp; 4271 } 4272 4273 /* This routine decrements the reference count for a ndlp structure. If the 4274 * count goes to 0, this indicates the the associated nodelist should be 4275 * freed. Returning 1 indicates the ndlp resource has been released; on the 4276 * other hand, returning 0 indicates the ndlp resource has not been released 4277 * yet. 4278 */ 4279 int 4280 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 4281 { 4282 struct lpfc_hba *phba; 4283 unsigned long flags; 4284 4285 if (!ndlp) 4286 return 1; 4287 4288 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4289 "node put: did:x%x flg:x%x refcnt:x%x", 4290 ndlp->nlp_DID, ndlp->nlp_flag, 4291 atomic_read(&ndlp->kref.refcount)); 4292 phba = ndlp->phba; 4293 spin_lock_irqsave(&phba->ndlp_lock, flags); 4294 /* Check the ndlp memory free acknowledge flag to avoid the 4295 * possible race condition that kref_put got invoked again 4296 * after previous one has done ndlp memory free. 4297 */ 4298 if (NLP_CHK_FREE_ACK(ndlp)) { 4299 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4300 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 4301 "0274 lpfc_nlp_put: ndlp:x%p " 4302 "usgmap:x%x refcnt:%d\n", 4303 (void *)ndlp, ndlp->nlp_usg_map, 4304 atomic_read(&ndlp->kref.refcount)); 4305 return 1; 4306 } 4307 /* Check the ndlp inactivate log flag to avoid the possible 4308 * race condition that kref_put got invoked again after ndlp 4309 * is already in inactivating state. 4310 */ 4311 if (NLP_CHK_IACT_REQ(ndlp)) { 4312 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4313 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 4314 "0275 lpfc_nlp_put: ndlp:x%p " 4315 "usgmap:x%x refcnt:%d\n", 4316 (void *)ndlp, ndlp->nlp_usg_map, 4317 atomic_read(&ndlp->kref.refcount)); 4318 return 1; 4319 } 4320 /* For last put, mark the ndlp usage flags to make sure no 4321 * other kref_get and kref_put on the same ndlp shall get 4322 * in between the process when the final kref_put has been 4323 * invoked on this ndlp. 4324 */ 4325 if (atomic_read(&ndlp->kref.refcount) == 1) { 4326 /* Indicate ndlp is put to inactive state. */ 4327 NLP_SET_IACT_REQ(ndlp); 4328 /* Acknowledge ndlp memory free has been seen. */ 4329 if (NLP_CHK_FREE_REQ(ndlp)) 4330 NLP_SET_FREE_ACK(ndlp); 4331 } 4332 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4333 /* Note, the kref_put returns 1 when decrementing a reference 4334 * count that was 1, it invokes the release callback function, 4335 * but it still left the reference count as 1 (not actually 4336 * performs the last decrementation). Otherwise, it actually 4337 * decrements the reference count and returns 0. 4338 */ 4339 return kref_put(&ndlp->kref, lpfc_nlp_release); 4340 } 4341 4342 /* This routine free's the specified nodelist if it is not in use 4343 * by any other discovery thread. This routine returns 1 if the 4344 * ndlp has been freed. A return value of 0 indicates the ndlp is 4345 * not yet been released. 4346 */ 4347 int 4348 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 4349 { 4350 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4351 "node not used: did:x%x flg:x%x refcnt:x%x", 4352 ndlp->nlp_DID, ndlp->nlp_flag, 4353 atomic_read(&ndlp->kref.refcount)); 4354 if (atomic_read(&ndlp->kref.refcount) == 1) 4355 if (lpfc_nlp_put(ndlp)) 4356 return 1; 4357 return 0; 4358 } 4359 4360 /** 4361 * lpfc_fcf_inuse - Check if FCF can be unregistered. 4362 * @phba: Pointer to hba context object. 4363 * 4364 * This function iterate through all FC nodes associated 4365 * will all vports to check if there is any node with 4366 * fc_rports associated with it. If there is an fc_rport 4367 * associated with the node, then the node is either in 4368 * discovered state or its devloss_timer is pending. 4369 */ 4370 static int 4371 lpfc_fcf_inuse(struct lpfc_hba *phba) 4372 { 4373 struct lpfc_vport **vports; 4374 int i, ret = 0; 4375 struct lpfc_nodelist *ndlp; 4376 struct Scsi_Host *shost; 4377 4378 vports = lpfc_create_vport_work_array(phba); 4379 4380 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4381 shost = lpfc_shost_from_vport(vports[i]); 4382 spin_lock_irq(shost->host_lock); 4383 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4384 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 4385 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 4386 ret = 1; 4387 spin_unlock_irq(shost->host_lock); 4388 goto out; 4389 } else { 4390 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 4391 "2624 RPI %x DID %x flg %x still " 4392 "logged in\n", 4393 ndlp->nlp_rpi, ndlp->nlp_DID, 4394 ndlp->nlp_flag); 4395 if (ndlp->nlp_flag & NLP_RPI_VALID) 4396 ret = 1; 4397 } 4398 } 4399 spin_unlock_irq(shost->host_lock); 4400 } 4401 out: 4402 lpfc_destroy_vport_work_array(phba, vports); 4403 return ret; 4404 } 4405 4406 /** 4407 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 4408 * @phba: Pointer to hba context object. 4409 * @mboxq: Pointer to mailbox object. 4410 * 4411 * This function frees memory associated with the mailbox command. 4412 */ 4413 static void 4414 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 4415 { 4416 struct lpfc_vport *vport = mboxq->vport; 4417 4418 if (mboxq->u.mb.mbxStatus) { 4419 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4420 "2555 UNREG_VFI mbxStatus error x%x " 4421 "HBA state x%x\n", 4422 mboxq->u.mb.mbxStatus, vport->port_state); 4423 } 4424 mempool_free(mboxq, phba->mbox_mem_pool); 4425 return; 4426 } 4427 4428 /** 4429 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 4430 * @phba: Pointer to hba context object. 4431 * @mboxq: Pointer to mailbox object. 4432 * 4433 * This function frees memory associated with the mailbox command. 4434 */ 4435 static void 4436 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 4437 { 4438 struct lpfc_vport *vport = mboxq->vport; 4439 4440 if (mboxq->u.mb.mbxStatus) { 4441 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4442 "2550 UNREG_FCFI mbxStatus error x%x " 4443 "HBA state x%x\n", 4444 mboxq->u.mb.mbxStatus, vport->port_state); 4445 } 4446 mempool_free(mboxq, phba->mbox_mem_pool); 4447 return; 4448 } 4449 4450 /** 4451 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 4452 * @phba: Pointer to hba context object. 4453 * 4454 * This function check if there are any connected remote port for the FCF and 4455 * if all the devices are disconnected, this function unregister FCFI. 4456 * This function also tries to use another FCF for discovery. 4457 */ 4458 void 4459 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 4460 { 4461 LPFC_MBOXQ_t *mbox; 4462 int rc; 4463 struct lpfc_vport **vports; 4464 int i; 4465 4466 spin_lock_irq(&phba->hbalock); 4467 /* 4468 * If HBA is not running in FIP mode or 4469 * If HBA does not support FCoE or 4470 * If FCF is not registered. 4471 * do nothing. 4472 */ 4473 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) || 4474 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 4475 (!(phba->hba_flag & HBA_FIP_SUPPORT))) { 4476 spin_unlock_irq(&phba->hbalock); 4477 return; 4478 } 4479 spin_unlock_irq(&phba->hbalock); 4480 4481 if (lpfc_fcf_inuse(phba)) 4482 return; 4483 4484 /* At this point, all discovery is aborted */ 4485 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 4486 4487 /* Unregister VPIs */ 4488 vports = lpfc_create_vport_work_array(phba); 4489 if (vports && 4490 (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 4491 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4492 lpfc_mbx_unreg_vpi(vports[i]); 4493 spin_lock_irq(&phba->hbalock); 4494 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 4495 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 4496 spin_unlock_irq(&phba->hbalock); 4497 } 4498 lpfc_destroy_vport_work_array(phba, vports); 4499 4500 /* Unregister VFI */ 4501 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4502 if (!mbox) { 4503 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4504 "2556 UNREG_VFI mbox allocation failed" 4505 "HBA state x%x\n", 4506 phba->pport->port_state); 4507 return; 4508 } 4509 4510 lpfc_unreg_vfi(mbox, phba->pport); 4511 mbox->vport = phba->pport; 4512 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl; 4513 4514 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4515 if (rc == MBX_NOT_FINISHED) { 4516 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4517 "2557 UNREG_VFI issue mbox failed rc x%x " 4518 "HBA state x%x\n", 4519 rc, phba->pport->port_state); 4520 mempool_free(mbox, phba->mbox_mem_pool); 4521 return; 4522 } 4523 4524 /* Unregister FCF */ 4525 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4526 if (!mbox) { 4527 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4528 "2551 UNREG_FCFI mbox allocation failed" 4529 "HBA state x%x\n", 4530 phba->pport->port_state); 4531 return; 4532 } 4533 4534 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 4535 mbox->vport = phba->pport; 4536 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 4537 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4538 4539 if (rc == MBX_NOT_FINISHED) { 4540 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4541 "2552 UNREG_FCFI issue mbox failed rc x%x " 4542 "HBA state x%x\n", 4543 rc, phba->pport->port_state); 4544 mempool_free(mbox, phba->mbox_mem_pool); 4545 return; 4546 } 4547 4548 spin_lock_irq(&phba->hbalock); 4549 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED | 4550 FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE | 4551 FCF_VALID_VLAN); 4552 spin_unlock_irq(&phba->hbalock); 4553 4554 /* 4555 * If driver is not unloading, check if there is any other 4556 * FCF record that can be used for discovery. 4557 */ 4558 if ((phba->pport->load_flag & FC_UNLOADING) || 4559 (phba->link_state < LPFC_LINK_UP)) 4560 return; 4561 4562 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST); 4563 4564 if (rc) 4565 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4566 "2553 lpfc_unregister_unused_fcf failed to read FCF" 4567 " record HBA state x%x\n", 4568 phba->pport->port_state); 4569 } 4570 4571 /** 4572 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 4573 * @phba: Pointer to hba context object. 4574 * @buff: Buffer containing the FCF connection table as in the config 4575 * region. 4576 * This function create driver data structure for the FCF connection 4577 * record table read from config region 23. 4578 */ 4579 static void 4580 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 4581 uint8_t *buff) 4582 { 4583 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4584 struct lpfc_fcf_conn_hdr *conn_hdr; 4585 struct lpfc_fcf_conn_rec *conn_rec; 4586 uint32_t record_count; 4587 int i; 4588 4589 /* Free the current connect table */ 4590 list_for_each_entry_safe(conn_entry, next_conn_entry, 4591 &phba->fcf_conn_rec_list, list) { 4592 list_del_init(&conn_entry->list); 4593 kfree(conn_entry); 4594 } 4595 4596 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 4597 record_count = conn_hdr->length * sizeof(uint32_t)/ 4598 sizeof(struct lpfc_fcf_conn_rec); 4599 4600 conn_rec = (struct lpfc_fcf_conn_rec *) 4601 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 4602 4603 for (i = 0; i < record_count; i++) { 4604 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 4605 continue; 4606 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 4607 GFP_KERNEL); 4608 if (!conn_entry) { 4609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4610 "2566 Failed to allocate connection" 4611 " table entry\n"); 4612 return; 4613 } 4614 4615 memcpy(&conn_entry->conn_rec, &conn_rec[i], 4616 sizeof(struct lpfc_fcf_conn_rec)); 4617 conn_entry->conn_rec.vlan_tag = 4618 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF; 4619 conn_entry->conn_rec.flags = 4620 le16_to_cpu(conn_entry->conn_rec.flags); 4621 list_add_tail(&conn_entry->list, 4622 &phba->fcf_conn_rec_list); 4623 } 4624 } 4625 4626 /** 4627 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 4628 * @phba: Pointer to hba context object. 4629 * @buff: Buffer containing the FCoE parameter data structure. 4630 * 4631 * This function update driver data structure with config 4632 * parameters read from config region 23. 4633 */ 4634 static void 4635 lpfc_read_fcoe_param(struct lpfc_hba *phba, 4636 uint8_t *buff) 4637 { 4638 struct lpfc_fip_param_hdr *fcoe_param_hdr; 4639 struct lpfc_fcoe_params *fcoe_param; 4640 4641 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 4642 buff; 4643 fcoe_param = (struct lpfc_fcoe_params *) 4644 (buff + sizeof(struct lpfc_fip_param_hdr)); 4645 4646 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 4647 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 4648 return; 4649 4650 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 4651 phba->valid_vlan = 1; 4652 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 4653 0xFFF; 4654 } 4655 4656 phba->fc_map[0] = fcoe_param->fc_map[0]; 4657 phba->fc_map[1] = fcoe_param->fc_map[1]; 4658 phba->fc_map[2] = fcoe_param->fc_map[2]; 4659 return; 4660 } 4661 4662 /** 4663 * lpfc_get_rec_conf23 - Get a record type in config region data. 4664 * @buff: Buffer containing config region 23 data. 4665 * @size: Size of the data buffer. 4666 * @rec_type: Record type to be searched. 4667 * 4668 * This function searches config region data to find the begining 4669 * of the record specified by record_type. If record found, this 4670 * function return pointer to the record else return NULL. 4671 */ 4672 static uint8_t * 4673 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 4674 { 4675 uint32_t offset = 0, rec_length; 4676 4677 if ((buff[0] == LPFC_REGION23_LAST_REC) || 4678 (size < sizeof(uint32_t))) 4679 return NULL; 4680 4681 rec_length = buff[offset + 1]; 4682 4683 /* 4684 * One TLV record has one word header and number of data words 4685 * specified in the rec_length field of the record header. 4686 */ 4687 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 4688 <= size) { 4689 if (buff[offset] == rec_type) 4690 return &buff[offset]; 4691 4692 if (buff[offset] == LPFC_REGION23_LAST_REC) 4693 return NULL; 4694 4695 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 4696 rec_length = buff[offset + 1]; 4697 } 4698 return NULL; 4699 } 4700 4701 /** 4702 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 4703 * @phba: Pointer to lpfc_hba data structure. 4704 * @buff: Buffer containing config region 23 data. 4705 * @size: Size of the data buffer. 4706 * 4707 * This fuction parse the FCoE config parameters in config region 23 and 4708 * populate driver data structure with the parameters. 4709 */ 4710 void 4711 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 4712 uint8_t *buff, 4713 uint32_t size) 4714 { 4715 uint32_t offset = 0, rec_length; 4716 uint8_t *rec_ptr; 4717 4718 /* 4719 * If data size is less than 2 words signature and version cannot be 4720 * verified. 4721 */ 4722 if (size < 2*sizeof(uint32_t)) 4723 return; 4724 4725 /* Check the region signature first */ 4726 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 4727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4728 "2567 Config region 23 has bad signature\n"); 4729 return; 4730 } 4731 4732 offset += 4; 4733 4734 /* Check the data structure version */ 4735 if (buff[offset] != LPFC_REGION23_VERSION) { 4736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4737 "2568 Config region 23 has bad version\n"); 4738 return; 4739 } 4740 offset += 4; 4741 4742 rec_length = buff[offset + 1]; 4743 4744 /* Read FCoE param record */ 4745 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 4746 size - offset, FCOE_PARAM_TYPE); 4747 if (rec_ptr) 4748 lpfc_read_fcoe_param(phba, rec_ptr); 4749 4750 /* Read FCF connection table */ 4751 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 4752 size - offset, FCOE_CONN_TBL_TYPE); 4753 if (rec_ptr) 4754 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 4755 4756 } 4757