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 if (phba->hba_flag & HBA_RECEIVE_BUFFER) 529 lpfc_sli4_handle_received_buffer(phba); 530 } 531 532 vports = lpfc_create_vport_work_array(phba); 533 if (vports != NULL) 534 for (i = 0; i <= phba->max_vports; i++) { 535 /* 536 * We could have no vports in array if unloading, so if 537 * this happens then just use the pport 538 */ 539 if (vports[i] == NULL && i == 0) 540 vport = phba->pport; 541 else 542 vport = vports[i]; 543 if (vport == NULL) 544 break; 545 spin_lock_irq(&vport->work_port_lock); 546 work_port_events = vport->work_port_events; 547 vport->work_port_events &= ~work_port_events; 548 spin_unlock_irq(&vport->work_port_lock); 549 if (work_port_events & WORKER_DISC_TMO) 550 lpfc_disc_timeout_handler(vport); 551 if (work_port_events & WORKER_ELS_TMO) 552 lpfc_els_timeout_handler(vport); 553 if (work_port_events & WORKER_HB_TMO) 554 lpfc_hb_timeout_handler(phba); 555 if (work_port_events & WORKER_MBOX_TMO) 556 lpfc_mbox_timeout_handler(phba); 557 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 558 lpfc_unblock_fabric_iocbs(phba); 559 if (work_port_events & WORKER_FDMI_TMO) 560 lpfc_fdmi_timeout_handler(vport); 561 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 562 lpfc_ramp_down_queue_handler(phba); 563 if (work_port_events & WORKER_RAMP_UP_QUEUE) 564 lpfc_ramp_up_queue_handler(phba); 565 } 566 lpfc_destroy_vport_work_array(phba, vports); 567 568 pring = &phba->sli.ring[LPFC_ELS_RING]; 569 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 570 status >>= (4*LPFC_ELS_RING); 571 if ((status & HA_RXMASK) 572 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) { 573 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 574 pring->flag |= LPFC_DEFERRED_RING_EVENT; 575 /* Set the lpfc data pending flag */ 576 set_bit(LPFC_DATA_READY, &phba->data_flags); 577 } else { 578 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 579 lpfc_sli_handle_slow_ring_event(phba, pring, 580 (status & 581 HA_RXMASK)); 582 } 583 /* 584 * Turn on Ring interrupts 585 */ 586 if (phba->sli_rev <= LPFC_SLI_REV3) { 587 spin_lock_irq(&phba->hbalock); 588 control = readl(phba->HCregaddr); 589 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 590 lpfc_debugfs_slow_ring_trc(phba, 591 "WRK Enable ring: cntl:x%x hacopy:x%x", 592 control, ha_copy, 0); 593 594 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 595 writel(control, phba->HCregaddr); 596 readl(phba->HCregaddr); /* flush */ 597 } else { 598 lpfc_debugfs_slow_ring_trc(phba, 599 "WRK Ring ok: cntl:x%x hacopy:x%x", 600 control, ha_copy, 0); 601 } 602 spin_unlock_irq(&phba->hbalock); 603 } 604 } 605 lpfc_work_list_done(phba); 606 } 607 608 int 609 lpfc_do_work(void *p) 610 { 611 struct lpfc_hba *phba = p; 612 int rc; 613 614 set_user_nice(current, -20); 615 phba->data_flags = 0; 616 617 while (!kthread_should_stop()) { 618 /* wait and check worker queue activities */ 619 rc = wait_event_interruptible(phba->work_waitq, 620 (test_and_clear_bit(LPFC_DATA_READY, 621 &phba->data_flags) 622 || kthread_should_stop())); 623 /* Signal wakeup shall terminate the worker thread */ 624 if (rc) { 625 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 626 "0433 Wakeup on signal: rc=x%x\n", rc); 627 break; 628 } 629 630 /* Attend pending lpfc data processing */ 631 lpfc_work_done(phba); 632 } 633 phba->worker_thread = NULL; 634 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 635 "0432 Worker thread stopped.\n"); 636 return 0; 637 } 638 639 /* 640 * This is only called to handle FC worker events. Since this a rare 641 * occurance, we allocate a struct lpfc_work_evt structure here instead of 642 * embedding it in the IOCB. 643 */ 644 int 645 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 646 uint32_t evt) 647 { 648 struct lpfc_work_evt *evtp; 649 unsigned long flags; 650 651 /* 652 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 653 * be queued to worker thread for processing 654 */ 655 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 656 if (!evtp) 657 return 0; 658 659 evtp->evt_arg1 = arg1; 660 evtp->evt_arg2 = arg2; 661 evtp->evt = evt; 662 663 spin_lock_irqsave(&phba->hbalock, flags); 664 list_add_tail(&evtp->evt_listp, &phba->work_list); 665 spin_unlock_irqrestore(&phba->hbalock, flags); 666 667 lpfc_worker_wake_up(phba); 668 669 return 1; 670 } 671 672 void 673 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 674 { 675 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 676 struct lpfc_hba *phba = vport->phba; 677 struct lpfc_nodelist *ndlp, *next_ndlp; 678 int rc; 679 680 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 681 if (!NLP_CHK_NODE_ACT(ndlp)) 682 continue; 683 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 684 continue; 685 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 686 ((vport->port_type == LPFC_NPIV_PORT) && 687 (ndlp->nlp_DID == NameServer_DID))) 688 lpfc_unreg_rpi(vport, ndlp); 689 690 /* Leave Fabric nodes alone on link down */ 691 if (!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 RSCN activity */ 710 lpfc_els_flush_rscn(vport); 711 712 /* Cleanup any outstanding ELS commands */ 713 lpfc_els_flush_cmd(vport); 714 715 lpfc_cleanup_rpis(vport, 0); 716 717 /* Turn off discovery timer if its running */ 718 lpfc_can_disctmo(vport); 719 } 720 721 void 722 lpfc_linkdown_port(struct lpfc_vport *vport) 723 { 724 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 725 726 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 727 728 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 729 "Link Down: state:x%x rtry:x%x flg:x%x", 730 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 731 732 lpfc_port_link_failure(vport); 733 734 } 735 736 int 737 lpfc_linkdown(struct lpfc_hba *phba) 738 { 739 struct lpfc_vport *vport = phba->pport; 740 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 741 struct lpfc_vport **vports; 742 LPFC_MBOXQ_t *mb; 743 int i; 744 745 if (phba->link_state == LPFC_LINK_DOWN) 746 return 0; 747 spin_lock_irq(&phba->hbalock); 748 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED); 749 if (phba->link_state > LPFC_LINK_DOWN) { 750 phba->link_state = LPFC_LINK_DOWN; 751 phba->pport->fc_flag &= ~FC_LBIT; 752 } 753 spin_unlock_irq(&phba->hbalock); 754 vports = lpfc_create_vport_work_array(phba); 755 if (vports != NULL) 756 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 757 /* Issue a LINK DOWN event to all nodes */ 758 lpfc_linkdown_port(vports[i]); 759 } 760 lpfc_destroy_vport_work_array(phba, vports); 761 /* Clean up any firmware default rpi's */ 762 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 763 if (mb) { 764 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb); 765 mb->vport = vport; 766 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 767 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 768 == MBX_NOT_FINISHED) { 769 mempool_free(mb, phba->mbox_mem_pool); 770 } 771 } 772 773 /* Setup myDID for link up if we are in pt2pt mode */ 774 if (phba->pport->fc_flag & FC_PT2PT) { 775 phba->pport->fc_myDID = 0; 776 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 777 if (mb) { 778 lpfc_config_link(phba, mb); 779 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 780 mb->vport = vport; 781 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 782 == MBX_NOT_FINISHED) { 783 mempool_free(mb, phba->mbox_mem_pool); 784 } 785 } 786 spin_lock_irq(shost->host_lock); 787 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 788 spin_unlock_irq(shost->host_lock); 789 } 790 791 return 0; 792 } 793 794 static void 795 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 796 { 797 struct lpfc_nodelist *ndlp; 798 799 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 800 if (!NLP_CHK_NODE_ACT(ndlp)) 801 continue; 802 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 803 continue; 804 if (ndlp->nlp_type & NLP_FABRIC) { 805 /* On Linkup its safe to clean up the ndlp 806 * from Fabric connections. 807 */ 808 if (ndlp->nlp_DID != Fabric_DID) 809 lpfc_unreg_rpi(vport, ndlp); 810 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 811 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 812 /* Fail outstanding IO now since device is 813 * marked for PLOGI. 814 */ 815 lpfc_unreg_rpi(vport, ndlp); 816 } 817 } 818 } 819 820 static void 821 lpfc_linkup_port(struct lpfc_vport *vport) 822 { 823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 824 struct lpfc_hba *phba = vport->phba; 825 826 if ((vport->load_flag & FC_UNLOADING) != 0) 827 return; 828 829 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 830 "Link Up: top:x%x speed:x%x flg:x%x", 831 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 832 833 /* If NPIV is not enabled, only bring the physical port up */ 834 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 835 (vport != phba->pport)) 836 return; 837 838 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 839 840 spin_lock_irq(shost->host_lock); 841 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 842 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 843 vport->fc_flag |= FC_NDISC_ACTIVE; 844 vport->fc_ns_retry = 0; 845 spin_unlock_irq(shost->host_lock); 846 847 if (vport->fc_flag & FC_LBIT) 848 lpfc_linkup_cleanup_nodes(vport); 849 850 } 851 852 static int 853 lpfc_linkup(struct lpfc_hba *phba) 854 { 855 struct lpfc_vport **vports; 856 int i; 857 858 phba->link_state = LPFC_LINK_UP; 859 860 /* Unblock fabric iocbs if they are blocked */ 861 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 862 del_timer_sync(&phba->fabric_block_timer); 863 864 vports = lpfc_create_vport_work_array(phba); 865 if (vports != NULL) 866 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 867 lpfc_linkup_port(vports[i]); 868 lpfc_destroy_vport_work_array(phba, vports); 869 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 870 (phba->sli_rev < LPFC_SLI_REV4)) 871 lpfc_issue_clear_la(phba, phba->pport); 872 873 return 0; 874 } 875 876 /* 877 * This routine handles processing a CLEAR_LA mailbox 878 * command upon completion. It is setup in the LPFC_MBOXQ 879 * as the completion routine when the command is 880 * handed off to the SLI layer. 881 */ 882 static void 883 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 884 { 885 struct lpfc_vport *vport = pmb->vport; 886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 887 struct lpfc_sli *psli = &phba->sli; 888 MAILBOX_t *mb = &pmb->u.mb; 889 uint32_t control; 890 891 /* Since we don't do discovery right now, turn these off here */ 892 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 893 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 894 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 895 896 /* Check for error */ 897 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 898 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 899 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 900 "0320 CLEAR_LA mbxStatus error x%x hba " 901 "state x%x\n", 902 mb->mbxStatus, vport->port_state); 903 phba->link_state = LPFC_HBA_ERROR; 904 goto out; 905 } 906 907 if (vport->port_type == LPFC_PHYSICAL_PORT) 908 phba->link_state = LPFC_HBA_READY; 909 910 spin_lock_irq(&phba->hbalock); 911 psli->sli_flag |= LPFC_PROCESS_LA; 912 control = readl(phba->HCregaddr); 913 control |= HC_LAINT_ENA; 914 writel(control, phba->HCregaddr); 915 readl(phba->HCregaddr); /* flush */ 916 spin_unlock_irq(&phba->hbalock); 917 mempool_free(pmb, phba->mbox_mem_pool); 918 return; 919 920 out: 921 /* Device Discovery completes */ 922 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 923 "0225 Device Discovery completes\n"); 924 mempool_free(pmb, phba->mbox_mem_pool); 925 926 spin_lock_irq(shost->host_lock); 927 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 928 spin_unlock_irq(shost->host_lock); 929 930 lpfc_can_disctmo(vport); 931 932 /* turn on Link Attention interrupts */ 933 934 spin_lock_irq(&phba->hbalock); 935 psli->sli_flag |= LPFC_PROCESS_LA; 936 control = readl(phba->HCregaddr); 937 control |= HC_LAINT_ENA; 938 writel(control, phba->HCregaddr); 939 readl(phba->HCregaddr); /* flush */ 940 spin_unlock_irq(&phba->hbalock); 941 942 return; 943 } 944 945 946 static void 947 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 948 { 949 struct lpfc_vport *vport = pmb->vport; 950 951 if (pmb->u.mb.mbxStatus) 952 goto out; 953 954 mempool_free(pmb, phba->mbox_mem_pool); 955 956 if (phba->fc_topology == TOPOLOGY_LOOP && 957 vport->fc_flag & FC_PUBLIC_LOOP && 958 !(vport->fc_flag & FC_LBIT)) { 959 /* Need to wait for FAN - use discovery timer 960 * for timeout. port_state is identically 961 * LPFC_LOCAL_CFG_LINK while waiting for FAN 962 */ 963 lpfc_set_disctmo(vport); 964 return; 965 } 966 967 /* Start discovery by sending a FLOGI. port_state is identically 968 * LPFC_FLOGI while waiting for FLOGI cmpl 969 */ 970 if (vport->port_state != LPFC_FLOGI) { 971 lpfc_initial_flogi(vport); 972 } 973 return; 974 975 out: 976 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 977 "0306 CONFIG_LINK mbxStatus error x%x " 978 "HBA state x%x\n", 979 pmb->u.mb.mbxStatus, vport->port_state); 980 mempool_free(pmb, phba->mbox_mem_pool); 981 982 lpfc_linkdown(phba); 983 984 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 985 "0200 CONFIG_LINK bad hba state x%x\n", 986 vport->port_state); 987 988 lpfc_issue_clear_la(phba, vport); 989 return; 990 } 991 992 static void 993 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 994 { 995 struct lpfc_vport *vport = mboxq->vport; 996 unsigned long flags; 997 998 if (mboxq->u.mb.mbxStatus) { 999 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1000 "2017 REG_FCFI mbxStatus error x%x " 1001 "HBA state x%x\n", 1002 mboxq->u.mb.mbxStatus, vport->port_state); 1003 mempool_free(mboxq, phba->mbox_mem_pool); 1004 return; 1005 } 1006 1007 /* Start FCoE discovery by sending a FLOGI. */ 1008 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1009 /* Set the FCFI registered flag */ 1010 spin_lock_irqsave(&phba->hbalock, flags); 1011 phba->fcf.fcf_flag |= FCF_REGISTERED; 1012 spin_unlock_irqrestore(&phba->hbalock, flags); 1013 /* If there is a pending FCoE event, restart FCF table scan. */ 1014 if (lpfc_check_pending_fcoe_event(phba, 1)) { 1015 mempool_free(mboxq, phba->mbox_mem_pool); 1016 return; 1017 } 1018 if (vport->port_state != LPFC_FLOGI) { 1019 spin_lock_irqsave(&phba->hbalock, flags); 1020 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE); 1021 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1022 spin_unlock_irqrestore(&phba->hbalock, flags); 1023 lpfc_initial_flogi(vport); 1024 } 1025 1026 mempool_free(mboxq, phba->mbox_mem_pool); 1027 return; 1028 } 1029 1030 /** 1031 * lpfc_fab_name_match - Check if the fcf fabric name match. 1032 * @fab_name: pointer to fabric name. 1033 * @new_fcf_record: pointer to fcf record. 1034 * 1035 * This routine compare the fcf record's fabric name with provided 1036 * fabric name. If the fabric name are identical this function 1037 * returns 1 else return 0. 1038 **/ 1039 static uint32_t 1040 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1041 { 1042 if ((fab_name[0] == 1043 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) && 1044 (fab_name[1] == 1045 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) && 1046 (fab_name[2] == 1047 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) && 1048 (fab_name[3] == 1049 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) && 1050 (fab_name[4] == 1051 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) && 1052 (fab_name[5] == 1053 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) && 1054 (fab_name[6] == 1055 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) && 1056 (fab_name[7] == 1057 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))) 1058 return 1; 1059 else 1060 return 0; 1061 } 1062 1063 /** 1064 * lpfc_sw_name_match - Check if the fcf switch name match. 1065 * @fab_name: pointer to fabric name. 1066 * @new_fcf_record: pointer to fcf record. 1067 * 1068 * This routine compare the fcf record's switch name with provided 1069 * switch name. If the switch name are identical this function 1070 * returns 1 else return 0. 1071 **/ 1072 static uint32_t 1073 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1074 { 1075 if ((sw_name[0] == 1076 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) && 1077 (sw_name[1] == 1078 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) && 1079 (sw_name[2] == 1080 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) && 1081 (sw_name[3] == 1082 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) && 1083 (sw_name[4] == 1084 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) && 1085 (sw_name[5] == 1086 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) && 1087 (sw_name[6] == 1088 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) && 1089 (sw_name[7] == 1090 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))) 1091 return 1; 1092 else 1093 return 0; 1094 } 1095 1096 /** 1097 * lpfc_mac_addr_match - Check if the fcf mac address match. 1098 * @phba: pointer to lpfc hba data structure. 1099 * @new_fcf_record: pointer to fcf record. 1100 * 1101 * This routine compare the fcf record's mac address with HBA's 1102 * FCF mac address. If the mac addresses are identical this function 1103 * returns 1 else return 0. 1104 **/ 1105 static uint32_t 1106 lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record) 1107 { 1108 if ((phba->fcf.mac_addr[0] == 1109 bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) && 1110 (phba->fcf.mac_addr[1] == 1111 bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) && 1112 (phba->fcf.mac_addr[2] == 1113 bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) && 1114 (phba->fcf.mac_addr[3] == 1115 bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) && 1116 (phba->fcf.mac_addr[4] == 1117 bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) && 1118 (phba->fcf.mac_addr[5] == 1119 bf_get(lpfc_fcf_record_mac_5, new_fcf_record))) 1120 return 1; 1121 else 1122 return 0; 1123 } 1124 1125 /** 1126 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1127 * @phba: pointer to lpfc hba data structure. 1128 * @new_fcf_record: pointer to fcf record. 1129 * 1130 * This routine copies the FCF information from the FCF 1131 * record to lpfc_hba data structure. 1132 **/ 1133 static void 1134 lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record) 1135 { 1136 phba->fcf.fabric_name[0] = 1137 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1138 phba->fcf.fabric_name[1] = 1139 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1140 phba->fcf.fabric_name[2] = 1141 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1142 phba->fcf.fabric_name[3] = 1143 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1144 phba->fcf.fabric_name[4] = 1145 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1146 phba->fcf.fabric_name[5] = 1147 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1148 phba->fcf.fabric_name[6] = 1149 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1150 phba->fcf.fabric_name[7] = 1151 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1152 phba->fcf.mac_addr[0] = 1153 bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1154 phba->fcf.mac_addr[1] = 1155 bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1156 phba->fcf.mac_addr[2] = 1157 bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1158 phba->fcf.mac_addr[3] = 1159 bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1160 phba->fcf.mac_addr[4] = 1161 bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1162 phba->fcf.mac_addr[5] = 1163 bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1164 phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1165 phba->fcf.priority = new_fcf_record->fip_priority; 1166 phba->fcf.switch_name[0] = 1167 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1168 phba->fcf.switch_name[1] = 1169 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1170 phba->fcf.switch_name[2] = 1171 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1172 phba->fcf.switch_name[3] = 1173 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1174 phba->fcf.switch_name[4] = 1175 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1176 phba->fcf.switch_name[5] = 1177 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1178 phba->fcf.switch_name[6] = 1179 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1180 phba->fcf.switch_name[7] = 1181 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1182 } 1183 1184 /** 1185 * lpfc_register_fcf - Register the FCF with hba. 1186 * @phba: pointer to lpfc hba data structure. 1187 * 1188 * This routine issues a register fcfi mailbox command to register 1189 * the fcf with HBA. 1190 **/ 1191 static void 1192 lpfc_register_fcf(struct lpfc_hba *phba) 1193 { 1194 LPFC_MBOXQ_t *fcf_mbxq; 1195 int rc; 1196 unsigned long flags; 1197 1198 spin_lock_irqsave(&phba->hbalock, flags); 1199 1200 /* If the FCF is not availabe do nothing. */ 1201 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1202 spin_unlock_irqrestore(&phba->hbalock, flags); 1203 return; 1204 } 1205 1206 /* The FCF is already registered, start discovery */ 1207 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1208 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE); 1209 phba->hba_flag &= ~FCF_DISC_INPROGRESS; 1210 spin_unlock_irqrestore(&phba->hbalock, flags); 1211 if (phba->pport->port_state != LPFC_FLOGI) 1212 lpfc_initial_flogi(phba->pport); 1213 return; 1214 } 1215 spin_unlock_irqrestore(&phba->hbalock, flags); 1216 1217 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, 1218 GFP_KERNEL); 1219 if (!fcf_mbxq) 1220 return; 1221 1222 lpfc_reg_fcfi(phba, fcf_mbxq); 1223 fcf_mbxq->vport = phba->pport; 1224 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1225 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1226 if (rc == MBX_NOT_FINISHED) 1227 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1228 1229 return; 1230 } 1231 1232 /** 1233 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1234 * @phba: pointer to lpfc hba data structure. 1235 * @new_fcf_record: pointer to fcf record. 1236 * @boot_flag: Indicates if this record used by boot bios. 1237 * @addr_mode: The address mode to be used by this FCF 1238 * 1239 * This routine compare the fcf record with connect list obtained from the 1240 * config region to decide if this FCF can be used for SAN discovery. It returns 1241 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1242 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1243 * is used by boot bios and addr_mode will indicate the addressing mode to be 1244 * used for this FCF when the function returns. 1245 * If the FCF record need to be used with a particular vlan id, the vlan is 1246 * set in the vlan_id on return of the function. If not VLAN tagging need to 1247 * be used with the FCF vlan_id will be set to 0xFFFF; 1248 **/ 1249 static int 1250 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1251 struct fcf_record *new_fcf_record, 1252 uint32_t *boot_flag, uint32_t *addr_mode, 1253 uint16_t *vlan_id) 1254 { 1255 struct lpfc_fcf_conn_entry *conn_entry; 1256 1257 /* If FCF not available return 0 */ 1258 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1259 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record)) 1260 return 0; 1261 1262 if (!phba->cfg_enable_fip) { 1263 *boot_flag = 0; 1264 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1265 new_fcf_record); 1266 if (phba->valid_vlan) 1267 *vlan_id = phba->vlan_id; 1268 else 1269 *vlan_id = 0xFFFF; 1270 return 1; 1271 } 1272 1273 /* 1274 * If there are no FCF connection table entry, driver connect to all 1275 * FCFs. 1276 */ 1277 if (list_empty(&phba->fcf_conn_rec_list)) { 1278 *boot_flag = 0; 1279 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1280 new_fcf_record); 1281 1282 /* 1283 * When there are no FCF connect entries, use driver's default 1284 * addressing mode - FPMA. 1285 */ 1286 if (*addr_mode & LPFC_FCF_FPMA) 1287 *addr_mode = LPFC_FCF_FPMA; 1288 1289 *vlan_id = 0xFFFF; 1290 return 1; 1291 } 1292 1293 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) { 1294 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1295 continue; 1296 1297 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1298 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1299 new_fcf_record)) 1300 continue; 1301 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1302 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1303 new_fcf_record)) 1304 continue; 1305 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1306 /* 1307 * If the vlan bit map does not have the bit set for the 1308 * vlan id to be used, then it is not a match. 1309 */ 1310 if (!(new_fcf_record->vlan_bitmap 1311 [conn_entry->conn_rec.vlan_tag / 8] & 1312 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1313 continue; 1314 } 1315 1316 /* 1317 * If connection record does not support any addressing mode, 1318 * skip the FCF record. 1319 */ 1320 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1321 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1322 continue; 1323 1324 /* 1325 * Check if the connection record specifies a required 1326 * addressing mode. 1327 */ 1328 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1329 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1330 1331 /* 1332 * If SPMA required but FCF not support this continue. 1333 */ 1334 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1335 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1336 new_fcf_record) & LPFC_FCF_SPMA)) 1337 continue; 1338 1339 /* 1340 * If FPMA required but FCF not support this continue. 1341 */ 1342 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1343 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1344 new_fcf_record) & LPFC_FCF_FPMA)) 1345 continue; 1346 } 1347 1348 /* 1349 * This fcf record matches filtering criteria. 1350 */ 1351 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1352 *boot_flag = 1; 1353 else 1354 *boot_flag = 0; 1355 1356 /* 1357 * If user did not specify any addressing mode, or if the 1358 * prefered addressing mode specified by user is not supported 1359 * by FCF, allow fabric to pick the addressing mode. 1360 */ 1361 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1362 new_fcf_record); 1363 /* 1364 * If the user specified a required address mode, assign that 1365 * address mode 1366 */ 1367 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1368 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1369 *addr_mode = (conn_entry->conn_rec.flags & 1370 FCFCNCT_AM_SPMA) ? 1371 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1372 /* 1373 * If the user specified a prefered address mode, use the 1374 * addr mode only if FCF support the addr_mode. 1375 */ 1376 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1377 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1378 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1379 (*addr_mode & LPFC_FCF_SPMA)) 1380 *addr_mode = LPFC_FCF_SPMA; 1381 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1382 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1383 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1384 (*addr_mode & LPFC_FCF_FPMA)) 1385 *addr_mode = LPFC_FCF_FPMA; 1386 1387 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1388 *vlan_id = conn_entry->conn_rec.vlan_tag; 1389 else 1390 *vlan_id = 0xFFFF; 1391 1392 return 1; 1393 } 1394 1395 return 0; 1396 } 1397 1398 /** 1399 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1400 * @phba: pointer to lpfc hba data structure. 1401 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1402 * 1403 * This function check if there is any fcoe event pending while driver 1404 * scan FCF entries. If there is any pending event, it will restart the 1405 * FCF saning and return 1 else return 0. 1406 */ 1407 int 1408 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1409 { 1410 LPFC_MBOXQ_t *mbox; 1411 int rc; 1412 /* 1413 * If the Link is up and no FCoE events while in the 1414 * FCF discovery, no need to restart FCF discovery. 1415 */ 1416 if ((phba->link_state >= LPFC_LINK_UP) && 1417 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1418 return 0; 1419 1420 spin_lock_irq(&phba->hbalock); 1421 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1422 spin_unlock_irq(&phba->hbalock); 1423 1424 if (phba->link_state >= LPFC_LINK_UP) 1425 lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST); 1426 1427 if (unreg_fcf) { 1428 spin_lock_irq(&phba->hbalock); 1429 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1430 spin_unlock_irq(&phba->hbalock); 1431 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1432 if (!mbox) { 1433 lpfc_printf_log(phba, KERN_ERR, 1434 LOG_DISCOVERY|LOG_MBOX, 1435 "2610 UNREG_FCFI mbox allocation failed\n"); 1436 return 1; 1437 } 1438 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 1439 mbox->vport = phba->pport; 1440 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 1441 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1442 if (rc == MBX_NOT_FINISHED) { 1443 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 1444 "2611 UNREG_FCFI issue mbox failed\n"); 1445 mempool_free(mbox, phba->mbox_mem_pool); 1446 } 1447 } 1448 1449 return 1; 1450 } 1451 1452 /** 1453 * lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox. 1454 * @phba: pointer to lpfc hba data structure. 1455 * @mboxq: pointer to mailbox object. 1456 * 1457 * This function iterate through all the fcf records available in 1458 * HBA and choose the optimal FCF record for discovery. After finding 1459 * the FCF for discovery it register the FCF record and kick start 1460 * discovery. 1461 * If FCF_IN_USE flag is set in currently used FCF, the routine try to 1462 * use a FCF record which match fabric name and mac address of the 1463 * currently used FCF record. 1464 * If the driver support only one FCF, it will try to use the FCF record 1465 * used by BOOT_BIOS. 1466 */ 1467 void 1468 lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1469 { 1470 void *virt_addr; 1471 dma_addr_t phys_addr; 1472 uint8_t *bytep; 1473 struct lpfc_mbx_sge sge; 1474 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1475 uint32_t shdr_status, shdr_add_status; 1476 union lpfc_sli4_cfg_shdr *shdr; 1477 struct fcf_record *new_fcf_record; 1478 int rc; 1479 uint32_t boot_flag, addr_mode; 1480 uint32_t next_fcf_index; 1481 unsigned long flags; 1482 uint16_t vlan_id; 1483 1484 /* If there is pending FCoE event restart FCF table scan */ 1485 if (lpfc_check_pending_fcoe_event(phba, 0)) { 1486 lpfc_sli4_mbox_cmd_free(phba, mboxq); 1487 return; 1488 } 1489 1490 /* Get the first SGE entry from the non-embedded DMA memory. This 1491 * routine only uses a single SGE. 1492 */ 1493 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1494 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); 1495 if (unlikely(!mboxq->sge_array)) { 1496 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1497 "2524 Failed to get the non-embedded SGE " 1498 "virtual address\n"); 1499 goto out; 1500 } 1501 virt_addr = mboxq->sge_array->addr[0]; 1502 1503 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1504 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1505 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 1506 &shdr->response); 1507 /* 1508 * The FCF Record was read and there is no reason for the driver 1509 * to maintain the FCF record data or memory. Instead, just need 1510 * to book keeping the FCFIs can be used. 1511 */ 1512 if (shdr_status || shdr_add_status) { 1513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1514 "2521 READ_FCF_RECORD mailbox failed " 1515 "with status x%x add_status x%x, mbx\n", 1516 shdr_status, shdr_add_status); 1517 goto out; 1518 } 1519 /* Interpreting the returned information of FCF records */ 1520 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1521 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1522 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1523 next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1524 1525 new_fcf_record = (struct fcf_record *)(virt_addr + 1526 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1527 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1528 sizeof(struct fcf_record)); 1529 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); 1530 1531 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, 1532 &boot_flag, &addr_mode, 1533 &vlan_id); 1534 /* 1535 * If the fcf record does not match with connect list entries 1536 * read the next entry. 1537 */ 1538 if (!rc) 1539 goto read_next_fcf; 1540 /* 1541 * If this is not the first FCF discovery of the HBA, use last 1542 * FCF record for the discovery. 1543 */ 1544 spin_lock_irqsave(&phba->hbalock, flags); 1545 if (phba->fcf.fcf_flag & FCF_IN_USE) { 1546 if (lpfc_fab_name_match(phba->fcf.fabric_name, 1547 new_fcf_record) && 1548 lpfc_sw_name_match(phba->fcf.switch_name, 1549 new_fcf_record) && 1550 lpfc_mac_addr_match(phba, new_fcf_record)) { 1551 phba->fcf.fcf_flag |= FCF_AVAILABLE; 1552 spin_unlock_irqrestore(&phba->hbalock, flags); 1553 goto out; 1554 } 1555 spin_unlock_irqrestore(&phba->hbalock, flags); 1556 goto read_next_fcf; 1557 } 1558 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 1559 /* 1560 * If the current FCF record does not have boot flag 1561 * set and new fcf record has boot flag set, use the 1562 * new fcf record. 1563 */ 1564 if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) { 1565 /* Use this FCF record */ 1566 lpfc_copy_fcf_record(phba, new_fcf_record); 1567 phba->fcf.addr_mode = addr_mode; 1568 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE; 1569 if (vlan_id != 0xFFFF) { 1570 phba->fcf.fcf_flag |= FCF_VALID_VLAN; 1571 phba->fcf.vlan_id = vlan_id; 1572 } 1573 spin_unlock_irqrestore(&phba->hbalock, flags); 1574 goto read_next_fcf; 1575 } 1576 /* 1577 * If the current FCF record has boot flag set and the 1578 * new FCF record does not have boot flag, read the next 1579 * FCF record. 1580 */ 1581 if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) { 1582 spin_unlock_irqrestore(&phba->hbalock, flags); 1583 goto read_next_fcf; 1584 } 1585 /* 1586 * If there is a record with lower priority value for 1587 * the current FCF, use that record. 1588 */ 1589 if (lpfc_fab_name_match(phba->fcf.fabric_name, 1590 new_fcf_record) && 1591 (new_fcf_record->fip_priority < phba->fcf.priority)) { 1592 /* Use this FCF record */ 1593 lpfc_copy_fcf_record(phba, new_fcf_record); 1594 phba->fcf.addr_mode = addr_mode; 1595 if (vlan_id != 0xFFFF) { 1596 phba->fcf.fcf_flag |= FCF_VALID_VLAN; 1597 phba->fcf.vlan_id = vlan_id; 1598 } 1599 spin_unlock_irqrestore(&phba->hbalock, flags); 1600 goto read_next_fcf; 1601 } 1602 spin_unlock_irqrestore(&phba->hbalock, flags); 1603 goto read_next_fcf; 1604 } 1605 /* 1606 * This is the first available FCF record, use this 1607 * record. 1608 */ 1609 lpfc_copy_fcf_record(phba, new_fcf_record); 1610 phba->fcf.addr_mode = addr_mode; 1611 if (boot_flag) 1612 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE; 1613 phba->fcf.fcf_flag |= FCF_AVAILABLE; 1614 if (vlan_id != 0xFFFF) { 1615 phba->fcf.fcf_flag |= FCF_VALID_VLAN; 1616 phba->fcf.vlan_id = vlan_id; 1617 } 1618 spin_unlock_irqrestore(&phba->hbalock, flags); 1619 goto read_next_fcf; 1620 1621 read_next_fcf: 1622 lpfc_sli4_mbox_cmd_free(phba, mboxq); 1623 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) 1624 lpfc_register_fcf(phba); 1625 else 1626 lpfc_sli4_read_fcf_record(phba, next_fcf_index); 1627 return; 1628 1629 out: 1630 lpfc_sli4_mbox_cmd_free(phba, mboxq); 1631 lpfc_register_fcf(phba); 1632 1633 return; 1634 } 1635 1636 /** 1637 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 1638 * @phba: pointer to lpfc hba data structure. 1639 * @mboxq: pointer to mailbox data structure. 1640 * 1641 * This function handles completion of init vpi mailbox command. 1642 */ 1643 static void 1644 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1645 { 1646 struct lpfc_vport *vport = mboxq->vport; 1647 if (mboxq->u.mb.mbxStatus) { 1648 lpfc_printf_vlog(vport, KERN_ERR, 1649 LOG_MBOX, 1650 "2609 Init VPI mailbox failed 0x%x\n", 1651 mboxq->u.mb.mbxStatus); 1652 mempool_free(mboxq, phba->mbox_mem_pool); 1653 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1654 return; 1655 } 1656 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 1657 1658 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 1659 lpfc_initial_fdisc(vport); 1660 else { 1661 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 1662 lpfc_printf_vlog(vport, KERN_ERR, 1663 LOG_ELS, 1664 "2606 No NPIV Fabric support\n"); 1665 } 1666 return; 1667 } 1668 1669 /** 1670 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 1671 * @phba: pointer to lpfc hba data structure. 1672 * 1673 * This function loops through the list of vports on the @phba and issues an 1674 * FDISC if possible. 1675 */ 1676 void 1677 lpfc_start_fdiscs(struct lpfc_hba *phba) 1678 { 1679 struct lpfc_vport **vports; 1680 int i; 1681 LPFC_MBOXQ_t *mboxq; 1682 int rc; 1683 1684 vports = lpfc_create_vport_work_array(phba); 1685 if (vports != NULL) { 1686 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1687 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 1688 continue; 1689 /* There are no vpi for this vport */ 1690 if (vports[i]->vpi > phba->max_vpi) { 1691 lpfc_vport_set_state(vports[i], 1692 FC_VPORT_FAILED); 1693 continue; 1694 } 1695 if (phba->fc_topology == TOPOLOGY_LOOP) { 1696 lpfc_vport_set_state(vports[i], 1697 FC_VPORT_LINKDOWN); 1698 continue; 1699 } 1700 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 1701 mboxq = mempool_alloc(phba->mbox_mem_pool, 1702 GFP_KERNEL); 1703 if (!mboxq) { 1704 lpfc_printf_vlog(vports[i], KERN_ERR, 1705 LOG_MBOX, "2607 Failed to allocate " 1706 "init_vpi mailbox\n"); 1707 continue; 1708 } 1709 lpfc_init_vpi(phba, mboxq, vports[i]->vpi); 1710 mboxq->vport = vports[i]; 1711 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 1712 rc = lpfc_sli_issue_mbox(phba, mboxq, 1713 MBX_NOWAIT); 1714 if (rc == MBX_NOT_FINISHED) { 1715 lpfc_printf_vlog(vports[i], KERN_ERR, 1716 LOG_MBOX, "2608 Failed to issue " 1717 "init_vpi mailbox\n"); 1718 mempool_free(mboxq, 1719 phba->mbox_mem_pool); 1720 } 1721 continue; 1722 } 1723 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 1724 lpfc_initial_fdisc(vports[i]); 1725 else { 1726 lpfc_vport_set_state(vports[i], 1727 FC_VPORT_NO_FABRIC_SUPP); 1728 lpfc_printf_vlog(vports[i], KERN_ERR, 1729 LOG_ELS, 1730 "0259 No NPIV " 1731 "Fabric support\n"); 1732 } 1733 } 1734 } 1735 lpfc_destroy_vport_work_array(phba, vports); 1736 } 1737 1738 void 1739 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1740 { 1741 struct lpfc_dmabuf *dmabuf = mboxq->context1; 1742 struct lpfc_vport *vport = mboxq->vport; 1743 1744 if (mboxq->u.mb.mbxStatus) { 1745 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1746 "2018 REG_VFI mbxStatus error x%x " 1747 "HBA state x%x\n", 1748 mboxq->u.mb.mbxStatus, vport->port_state); 1749 if (phba->fc_topology == TOPOLOGY_LOOP) { 1750 /* FLOGI failed, use loop map to make discovery list */ 1751 lpfc_disc_list_loopmap(vport); 1752 /* Start discovery */ 1753 lpfc_disc_start(vport); 1754 goto fail_free_mem; 1755 } 1756 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1757 goto fail_free_mem; 1758 } 1759 /* Mark the vport has registered with its VFI */ 1760 vport->vfi_state |= LPFC_VFI_REGISTERED; 1761 1762 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 1763 lpfc_start_fdiscs(phba); 1764 lpfc_do_scr_ns_plogi(phba, vport); 1765 } 1766 1767 fail_free_mem: 1768 mempool_free(mboxq, phba->mbox_mem_pool); 1769 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 1770 kfree(dmabuf); 1771 return; 1772 } 1773 1774 static void 1775 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1776 { 1777 MAILBOX_t *mb = &pmb->u.mb; 1778 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 1779 struct lpfc_vport *vport = pmb->vport; 1780 1781 1782 /* Check for error */ 1783 if (mb->mbxStatus) { 1784 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 1785 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1786 "0319 READ_SPARAM mbxStatus error x%x " 1787 "hba state x%x>\n", 1788 mb->mbxStatus, vport->port_state); 1789 lpfc_linkdown(phba); 1790 goto out; 1791 } 1792 1793 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 1794 sizeof (struct serv_parm)); 1795 if (phba->cfg_soft_wwnn) 1796 u64_to_wwn(phba->cfg_soft_wwnn, 1797 vport->fc_sparam.nodeName.u.wwn); 1798 if (phba->cfg_soft_wwpn) 1799 u64_to_wwn(phba->cfg_soft_wwpn, 1800 vport->fc_sparam.portName.u.wwn); 1801 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 1802 sizeof(vport->fc_nodename)); 1803 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 1804 sizeof(vport->fc_portname)); 1805 if (vport->port_type == LPFC_PHYSICAL_PORT) { 1806 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 1807 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 1808 } 1809 1810 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1811 kfree(mp); 1812 mempool_free(pmb, phba->mbox_mem_pool); 1813 return; 1814 1815 out: 1816 pmb->context1 = NULL; 1817 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1818 kfree(mp); 1819 lpfc_issue_clear_la(phba, vport); 1820 mempool_free(pmb, phba->mbox_mem_pool); 1821 return; 1822 } 1823 1824 static void 1825 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) 1826 { 1827 struct lpfc_vport *vport = phba->pport; 1828 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 1829 int i; 1830 struct lpfc_dmabuf *mp; 1831 int rc; 1832 struct fcf_record *fcf_record; 1833 1834 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1835 1836 spin_lock_irq(&phba->hbalock); 1837 switch (la->UlnkSpeed) { 1838 case LA_1GHZ_LINK: 1839 phba->fc_linkspeed = LA_1GHZ_LINK; 1840 break; 1841 case LA_2GHZ_LINK: 1842 phba->fc_linkspeed = LA_2GHZ_LINK; 1843 break; 1844 case LA_4GHZ_LINK: 1845 phba->fc_linkspeed = LA_4GHZ_LINK; 1846 break; 1847 case LA_8GHZ_LINK: 1848 phba->fc_linkspeed = LA_8GHZ_LINK; 1849 break; 1850 case LA_10GHZ_LINK: 1851 phba->fc_linkspeed = LA_10GHZ_LINK; 1852 break; 1853 default: 1854 phba->fc_linkspeed = LA_UNKNW_LINK; 1855 break; 1856 } 1857 1858 phba->fc_topology = la->topology; 1859 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 1860 1861 if (phba->fc_topology == TOPOLOGY_LOOP) { 1862 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 1863 1864 if (phba->cfg_enable_npiv) 1865 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1866 "1309 Link Up Event npiv not supported in loop " 1867 "topology\n"); 1868 /* Get Loop Map information */ 1869 if (la->il) 1870 vport->fc_flag |= FC_LBIT; 1871 1872 vport->fc_myDID = la->granted_AL_PA; 1873 i = la->un.lilpBde64.tus.f.bdeSize; 1874 1875 if (i == 0) { 1876 phba->alpa_map[0] = 0; 1877 } else { 1878 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 1879 int numalpa, j, k; 1880 union { 1881 uint8_t pamap[16]; 1882 struct { 1883 uint32_t wd1; 1884 uint32_t wd2; 1885 uint32_t wd3; 1886 uint32_t wd4; 1887 } pa; 1888 } un; 1889 numalpa = phba->alpa_map[0]; 1890 j = 0; 1891 while (j < numalpa) { 1892 memset(un.pamap, 0, 16); 1893 for (k = 1; j < numalpa; k++) { 1894 un.pamap[k - 1] = 1895 phba->alpa_map[j + 1]; 1896 j++; 1897 if (k == 16) 1898 break; 1899 } 1900 /* Link Up Event ALPA map */ 1901 lpfc_printf_log(phba, 1902 KERN_WARNING, 1903 LOG_LINK_EVENT, 1904 "1304 Link Up Event " 1905 "ALPA map Data: x%x " 1906 "x%x x%x x%x\n", 1907 un.pa.wd1, un.pa.wd2, 1908 un.pa.wd3, un.pa.wd4); 1909 } 1910 } 1911 } 1912 } else { 1913 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 1914 if (phba->max_vpi && phba->cfg_enable_npiv && 1915 (phba->sli_rev == 3)) 1916 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 1917 } 1918 vport->fc_myDID = phba->fc_pref_DID; 1919 vport->fc_flag |= FC_LBIT; 1920 } 1921 spin_unlock_irq(&phba->hbalock); 1922 1923 lpfc_linkup(phba); 1924 if (sparam_mbox) { 1925 lpfc_read_sparam(phba, sparam_mbox, 0); 1926 sparam_mbox->vport = vport; 1927 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1928 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 1929 if (rc == MBX_NOT_FINISHED) { 1930 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 1931 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1932 kfree(mp); 1933 mempool_free(sparam_mbox, phba->mbox_mem_pool); 1934 goto out; 1935 } 1936 } 1937 1938 if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) { 1939 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1940 if (!cfglink_mbox) 1941 goto out; 1942 vport->port_state = LPFC_LOCAL_CFG_LINK; 1943 lpfc_config_link(phba, cfglink_mbox); 1944 cfglink_mbox->vport = vport; 1945 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 1946 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 1947 if (rc == MBX_NOT_FINISHED) { 1948 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 1949 goto out; 1950 } 1951 } else { 1952 vport->port_state = LPFC_VPORT_UNKNOWN; 1953 /* 1954 * Add the driver's default FCF record at FCF index 0 now. This 1955 * is phase 1 implementation that support FCF index 0 and driver 1956 * defaults. 1957 */ 1958 if (phba->cfg_enable_fip == 0) { 1959 fcf_record = kzalloc(sizeof(struct fcf_record), 1960 GFP_KERNEL); 1961 if (unlikely(!fcf_record)) { 1962 lpfc_printf_log(phba, KERN_ERR, 1963 LOG_MBOX | LOG_SLI, 1964 "2554 Could not allocate memmory for " 1965 "fcf record\n"); 1966 rc = -ENODEV; 1967 goto out; 1968 } 1969 1970 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 1971 LPFC_FCOE_FCF_DEF_INDEX); 1972 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 1973 if (unlikely(rc)) { 1974 lpfc_printf_log(phba, KERN_ERR, 1975 LOG_MBOX | LOG_SLI, 1976 "2013 Could not manually add FCF " 1977 "record 0, status %d\n", rc); 1978 rc = -ENODEV; 1979 kfree(fcf_record); 1980 goto out; 1981 } 1982 kfree(fcf_record); 1983 } 1984 /* 1985 * The driver is expected to do FIP/FCF. Call the port 1986 * and get the FCF Table. 1987 */ 1988 spin_lock_irq(&phba->hbalock); 1989 if (phba->hba_flag & FCF_DISC_INPROGRESS) { 1990 spin_unlock_irq(&phba->hbalock); 1991 return; 1992 } 1993 spin_unlock_irq(&phba->hbalock); 1994 rc = lpfc_sli4_read_fcf_record(phba, 1995 LPFC_FCOE_FCF_GET_FIRST); 1996 if (rc) 1997 goto out; 1998 } 1999 2000 return; 2001 out: 2002 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2003 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2004 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 2005 vport->port_state, sparam_mbox, cfglink_mbox); 2006 lpfc_issue_clear_la(phba, vport); 2007 return; 2008 } 2009 2010 static void 2011 lpfc_enable_la(struct lpfc_hba *phba) 2012 { 2013 uint32_t control; 2014 struct lpfc_sli *psli = &phba->sli; 2015 spin_lock_irq(&phba->hbalock); 2016 psli->sli_flag |= LPFC_PROCESS_LA; 2017 if (phba->sli_rev <= LPFC_SLI_REV3) { 2018 control = readl(phba->HCregaddr); 2019 control |= HC_LAINT_ENA; 2020 writel(control, phba->HCregaddr); 2021 readl(phba->HCregaddr); /* flush */ 2022 } 2023 spin_unlock_irq(&phba->hbalock); 2024 } 2025 2026 static void 2027 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 2028 { 2029 lpfc_linkdown(phba); 2030 lpfc_enable_la(phba); 2031 lpfc_unregister_unused_fcf(phba); 2032 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 2033 } 2034 2035 2036 /* 2037 * This routine handles processing a READ_LA mailbox 2038 * command upon completion. It is setup in the LPFC_MBOXQ 2039 * as the completion routine when the command is 2040 * handed off to the SLI layer. 2041 */ 2042 void 2043 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2044 { 2045 struct lpfc_vport *vport = pmb->vport; 2046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2047 READ_LA_VAR *la; 2048 MAILBOX_t *mb = &pmb->u.mb; 2049 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2050 2051 /* Unblock ELS traffic */ 2052 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2053 /* Check for error */ 2054 if (mb->mbxStatus) { 2055 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 2056 "1307 READ_LA mbox error x%x state x%x\n", 2057 mb->mbxStatus, vport->port_state); 2058 lpfc_mbx_issue_link_down(phba); 2059 phba->link_state = LPFC_HBA_ERROR; 2060 goto lpfc_mbx_cmpl_read_la_free_mbuf; 2061 } 2062 2063 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2064 2065 memcpy(&phba->alpa_map[0], mp->virt, 128); 2066 2067 spin_lock_irq(shost->host_lock); 2068 if (la->pb) 2069 vport->fc_flag |= FC_BYPASSED_MODE; 2070 else 2071 vport->fc_flag &= ~FC_BYPASSED_MODE; 2072 spin_unlock_irq(shost->host_lock); 2073 2074 if ((phba->fc_eventTag < la->eventTag) || 2075 (phba->fc_eventTag == la->eventTag)) { 2076 phba->fc_stat.LinkMultiEvent++; 2077 if (la->attType == AT_LINK_UP) 2078 if (phba->fc_eventTag != 0) 2079 lpfc_linkdown(phba); 2080 } 2081 2082 phba->fc_eventTag = la->eventTag; 2083 if (la->mm) 2084 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 2085 else 2086 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 2087 2088 if (la->attType == AT_LINK_UP && (!la->mm)) { 2089 phba->fc_stat.LinkUp++; 2090 if (phba->link_flag & LS_LOOPBACK_MODE) { 2091 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2092 "1306 Link Up Event in loop back mode " 2093 "x%x received Data: x%x x%x x%x x%x\n", 2094 la->eventTag, phba->fc_eventTag, 2095 la->granted_AL_PA, la->UlnkSpeed, 2096 phba->alpa_map[0]); 2097 } else { 2098 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2099 "1303 Link Up Event x%x received " 2100 "Data: x%x x%x x%x x%x x%x x%x %d\n", 2101 la->eventTag, phba->fc_eventTag, 2102 la->granted_AL_PA, la->UlnkSpeed, 2103 phba->alpa_map[0], 2104 la->mm, la->fa, 2105 phba->wait_4_mlo_maint_flg); 2106 } 2107 lpfc_mbx_process_link_up(phba, la); 2108 } else if (la->attType == AT_LINK_DOWN) { 2109 phba->fc_stat.LinkDown++; 2110 if (phba->link_flag & LS_LOOPBACK_MODE) { 2111 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2112 "1308 Link Down Event in loop back mode " 2113 "x%x received " 2114 "Data: x%x x%x x%x\n", 2115 la->eventTag, phba->fc_eventTag, 2116 phba->pport->port_state, vport->fc_flag); 2117 } 2118 else { 2119 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2120 "1305 Link Down Event x%x received " 2121 "Data: x%x x%x x%x x%x x%x\n", 2122 la->eventTag, phba->fc_eventTag, 2123 phba->pport->port_state, vport->fc_flag, 2124 la->mm, la->fa); 2125 } 2126 lpfc_mbx_issue_link_down(phba); 2127 } 2128 if (la->mm && la->attType == AT_LINK_UP) { 2129 if (phba->link_state != LPFC_LINK_DOWN) { 2130 phba->fc_stat.LinkDown++; 2131 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2132 "1312 Link Down Event x%x received " 2133 "Data: x%x x%x x%x\n", 2134 la->eventTag, phba->fc_eventTag, 2135 phba->pport->port_state, vport->fc_flag); 2136 lpfc_mbx_issue_link_down(phba); 2137 } else 2138 lpfc_enable_la(phba); 2139 2140 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2141 "1310 Menlo Maint Mode Link up Event x%x rcvd " 2142 "Data: x%x x%x x%x\n", 2143 la->eventTag, phba->fc_eventTag, 2144 phba->pport->port_state, vport->fc_flag); 2145 /* 2146 * The cmnd that triggered this will be waiting for this 2147 * signal. 2148 */ 2149 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 2150 if (phba->wait_4_mlo_maint_flg) { 2151 phba->wait_4_mlo_maint_flg = 0; 2152 wake_up_interruptible(&phba->wait_4_mlo_m_q); 2153 } 2154 } 2155 2156 if (la->fa) { 2157 if (la->mm) 2158 lpfc_issue_clear_la(phba, vport); 2159 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 2160 "1311 fa %d\n", la->fa); 2161 } 2162 2163 lpfc_mbx_cmpl_read_la_free_mbuf: 2164 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2165 kfree(mp); 2166 mempool_free(pmb, phba->mbox_mem_pool); 2167 return; 2168 } 2169 2170 /* 2171 * This routine handles processing a REG_LOGIN mailbox 2172 * command upon completion. It is setup in the LPFC_MBOXQ 2173 * as the completion routine when the command is 2174 * handed off to the SLI layer. 2175 */ 2176 void 2177 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2178 { 2179 struct lpfc_vport *vport = pmb->vport; 2180 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2181 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 2182 2183 pmb->context1 = NULL; 2184 2185 /* Good status, call state machine */ 2186 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 2187 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2188 kfree(mp); 2189 mempool_free(pmb, phba->mbox_mem_pool); 2190 /* decrement the node reference count held for this callback 2191 * function. 2192 */ 2193 lpfc_nlp_put(ndlp); 2194 2195 return; 2196 } 2197 2198 static void 2199 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2200 { 2201 MAILBOX_t *mb = &pmb->u.mb; 2202 struct lpfc_vport *vport = pmb->vport; 2203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2204 2205 switch (mb->mbxStatus) { 2206 case 0x0011: 2207 case 0x0020: 2208 case 0x9700: 2209 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 2210 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 2211 mb->mbxStatus); 2212 break; 2213 } 2214 vport->unreg_vpi_cmpl = VPORT_OK; 2215 mempool_free(pmb, phba->mbox_mem_pool); 2216 /* 2217 * This shost reference might have been taken at the beginning of 2218 * lpfc_vport_delete() 2219 */ 2220 if (vport->load_flag & FC_UNLOADING) 2221 scsi_host_put(shost); 2222 } 2223 2224 int 2225 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 2226 { 2227 struct lpfc_hba *phba = vport->phba; 2228 LPFC_MBOXQ_t *mbox; 2229 int rc; 2230 2231 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2232 if (!mbox) 2233 return 1; 2234 2235 lpfc_unreg_vpi(phba, vport->vpi, mbox); 2236 mbox->vport = vport; 2237 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 2238 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 2239 if (rc == MBX_NOT_FINISHED) { 2240 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 2241 "1800 Could not issue unreg_vpi\n"); 2242 mempool_free(mbox, phba->mbox_mem_pool); 2243 vport->unreg_vpi_cmpl = VPORT_ERROR; 2244 return rc; 2245 } 2246 return 0; 2247 } 2248 2249 static void 2250 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2251 { 2252 struct lpfc_vport *vport = pmb->vport; 2253 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2254 MAILBOX_t *mb = &pmb->u.mb; 2255 2256 switch (mb->mbxStatus) { 2257 case 0x0011: 2258 case 0x9601: 2259 case 0x9602: 2260 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 2261 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 2262 mb->mbxStatus); 2263 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2264 spin_lock_irq(shost->host_lock); 2265 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2266 spin_unlock_irq(shost->host_lock); 2267 vport->fc_myDID = 0; 2268 goto out; 2269 } 2270 2271 vport->num_disc_nodes = 0; 2272 /* go thru NPR list and issue ELS PLOGIs */ 2273 if (vport->fc_npr_cnt) 2274 lpfc_els_disc_plogi(vport); 2275 2276 if (!vport->num_disc_nodes) { 2277 spin_lock_irq(shost->host_lock); 2278 vport->fc_flag &= ~FC_NDISC_ACTIVE; 2279 spin_unlock_irq(shost->host_lock); 2280 lpfc_can_disctmo(vport); 2281 } 2282 vport->port_state = LPFC_VPORT_READY; 2283 2284 out: 2285 mempool_free(pmb, phba->mbox_mem_pool); 2286 return; 2287 } 2288 2289 /** 2290 * lpfc_create_static_vport - Read HBA config region to create static vports. 2291 * @phba: pointer to lpfc hba data structure. 2292 * 2293 * This routine issue a DUMP mailbox command for config region 22 to get 2294 * the list of static vports to be created. The function create vports 2295 * based on the information returned from the HBA. 2296 **/ 2297 void 2298 lpfc_create_static_vport(struct lpfc_hba *phba) 2299 { 2300 LPFC_MBOXQ_t *pmb = NULL; 2301 MAILBOX_t *mb; 2302 struct static_vport_info *vport_info; 2303 int rc = 0, i; 2304 struct fc_vport_identifiers vport_id; 2305 struct fc_vport *new_fc_vport; 2306 struct Scsi_Host *shost; 2307 struct lpfc_vport *vport; 2308 uint16_t offset = 0; 2309 uint8_t *vport_buff; 2310 struct lpfc_dmabuf *mp; 2311 uint32_t byte_count = 0; 2312 2313 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2314 if (!pmb) { 2315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2316 "0542 lpfc_create_static_vport failed to" 2317 " allocate mailbox memory\n"); 2318 return; 2319 } 2320 2321 mb = &pmb->u.mb; 2322 2323 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 2324 if (!vport_info) { 2325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2326 "0543 lpfc_create_static_vport failed to" 2327 " allocate vport_info\n"); 2328 mempool_free(pmb, phba->mbox_mem_pool); 2329 return; 2330 } 2331 2332 vport_buff = (uint8_t *) vport_info; 2333 do { 2334 if (lpfc_dump_static_vport(phba, pmb, offset)) 2335 goto out; 2336 2337 pmb->vport = phba->pport; 2338 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO); 2339 2340 if ((rc != MBX_SUCCESS) || mb->mbxStatus) { 2341 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2342 "0544 lpfc_create_static_vport failed to" 2343 " issue dump mailbox command ret 0x%x " 2344 "status 0x%x\n", 2345 rc, mb->mbxStatus); 2346 goto out; 2347 } 2348 2349 if (phba->sli_rev == LPFC_SLI_REV4) { 2350 byte_count = pmb->u.mqe.un.mb_words[5]; 2351 mp = (struct lpfc_dmabuf *) pmb->context2; 2352 if (byte_count > sizeof(struct static_vport_info) - 2353 offset) 2354 byte_count = sizeof(struct static_vport_info) 2355 - offset; 2356 memcpy(vport_buff + offset, mp->virt, byte_count); 2357 offset += byte_count; 2358 } else { 2359 if (mb->un.varDmp.word_cnt > 2360 sizeof(struct static_vport_info) - offset) 2361 mb->un.varDmp.word_cnt = 2362 sizeof(struct static_vport_info) 2363 - offset; 2364 byte_count = mb->un.varDmp.word_cnt; 2365 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 2366 vport_buff + offset, 2367 byte_count); 2368 2369 offset += byte_count; 2370 } 2371 2372 } while (byte_count && 2373 offset < sizeof(struct static_vport_info)); 2374 2375 2376 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 2377 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 2378 != VPORT_INFO_REV)) { 2379 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2380 "0545 lpfc_create_static_vport bad" 2381 " information header 0x%x 0x%x\n", 2382 le32_to_cpu(vport_info->signature), 2383 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 2384 2385 goto out; 2386 } 2387 2388 shost = lpfc_shost_from_vport(phba->pport); 2389 2390 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 2391 memset(&vport_id, 0, sizeof(vport_id)); 2392 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 2393 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 2394 if (!vport_id.port_name || !vport_id.node_name) 2395 continue; 2396 2397 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 2398 vport_id.vport_type = FC_PORTTYPE_NPIV; 2399 vport_id.disable = false; 2400 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 2401 2402 if (!new_fc_vport) { 2403 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2404 "0546 lpfc_create_static_vport failed to" 2405 " create vport\n"); 2406 continue; 2407 } 2408 2409 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 2410 vport->vport_flag |= STATIC_VPORT; 2411 } 2412 2413 out: 2414 kfree(vport_info); 2415 if (rc != MBX_TIMEOUT) { 2416 if (pmb->context2) { 2417 mp = (struct lpfc_dmabuf *) pmb->context2; 2418 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2419 kfree(mp); 2420 } 2421 mempool_free(pmb, phba->mbox_mem_pool); 2422 } 2423 2424 return; 2425 } 2426 2427 /* 2428 * This routine handles processing a Fabric REG_LOGIN mailbox 2429 * command upon completion. It is setup in the LPFC_MBOXQ 2430 * as the completion routine when the command is 2431 * handed off to the SLI layer. 2432 */ 2433 void 2434 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2435 { 2436 struct lpfc_vport *vport = pmb->vport; 2437 MAILBOX_t *mb = &pmb->u.mb; 2438 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2439 struct lpfc_nodelist *ndlp; 2440 2441 ndlp = (struct lpfc_nodelist *) pmb->context2; 2442 pmb->context1 = NULL; 2443 pmb->context2 = NULL; 2444 if (mb->mbxStatus) { 2445 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2446 "0258 Register Fabric login error: 0x%x\n", 2447 mb->mbxStatus); 2448 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2449 kfree(mp); 2450 mempool_free(pmb, phba->mbox_mem_pool); 2451 2452 if (phba->fc_topology == TOPOLOGY_LOOP) { 2453 /* FLOGI failed, use loop map to make discovery list */ 2454 lpfc_disc_list_loopmap(vport); 2455 2456 /* Start discovery */ 2457 lpfc_disc_start(vport); 2458 /* Decrement the reference count to ndlp after the 2459 * reference to the ndlp are done. 2460 */ 2461 lpfc_nlp_put(ndlp); 2462 return; 2463 } 2464 2465 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2466 /* Decrement the reference count to ndlp after the reference 2467 * to the ndlp are done. 2468 */ 2469 lpfc_nlp_put(ndlp); 2470 return; 2471 } 2472 2473 ndlp->nlp_rpi = mb->un.varWords[0]; 2474 ndlp->nlp_flag |= NLP_RPI_VALID; 2475 ndlp->nlp_type |= NLP_FABRIC; 2476 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2477 2478 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2479 lpfc_start_fdiscs(phba); 2480 lpfc_do_scr_ns_plogi(phba, vport); 2481 } 2482 2483 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2484 kfree(mp); 2485 mempool_free(pmb, phba->mbox_mem_pool); 2486 2487 /* Drop the reference count from the mbox at the end after 2488 * all the current reference to the ndlp have been done. 2489 */ 2490 lpfc_nlp_put(ndlp); 2491 return; 2492 } 2493 2494 /* 2495 * This routine handles processing a NameServer REG_LOGIN mailbox 2496 * command upon completion. It is setup in the LPFC_MBOXQ 2497 * as the completion routine when the command is 2498 * handed off to the SLI layer. 2499 */ 2500 void 2501 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2502 { 2503 MAILBOX_t *mb = &pmb->u.mb; 2504 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 2505 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 2506 struct lpfc_vport *vport = pmb->vport; 2507 2508 if (mb->mbxStatus) { 2509 out: 2510 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2511 "0260 Register NameServer error: 0x%x\n", 2512 mb->mbxStatus); 2513 /* decrement the node reference count held for this 2514 * callback function. 2515 */ 2516 lpfc_nlp_put(ndlp); 2517 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2518 kfree(mp); 2519 mempool_free(pmb, phba->mbox_mem_pool); 2520 2521 /* If no other thread is using the ndlp, free it */ 2522 lpfc_nlp_not_used(ndlp); 2523 2524 if (phba->fc_topology == TOPOLOGY_LOOP) { 2525 /* 2526 * RegLogin failed, use loop map to make discovery 2527 * list 2528 */ 2529 lpfc_disc_list_loopmap(vport); 2530 2531 /* Start discovery */ 2532 lpfc_disc_start(vport); 2533 return; 2534 } 2535 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2536 return; 2537 } 2538 2539 pmb->context1 = NULL; 2540 2541 ndlp->nlp_rpi = mb->un.varWords[0]; 2542 ndlp->nlp_flag |= NLP_RPI_VALID; 2543 ndlp->nlp_type |= NLP_FABRIC; 2544 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2545 2546 if (vport->port_state < LPFC_VPORT_READY) { 2547 /* Link up discovery requires Fabric registration. */ 2548 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */ 2549 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 2550 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 2551 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 2552 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 2553 2554 /* Issue SCR just before NameServer GID_FT Query */ 2555 lpfc_issue_els_scr(vport, SCR_DID, 0); 2556 } 2557 2558 vport->fc_ns_retry = 0; 2559 /* Good status, issue CT Request to NameServer */ 2560 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 2561 /* Cannot issue NameServer Query, so finish up discovery */ 2562 goto out; 2563 } 2564 2565 /* decrement the node reference count held for this 2566 * callback function. 2567 */ 2568 lpfc_nlp_put(ndlp); 2569 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2570 kfree(mp); 2571 mempool_free(pmb, phba->mbox_mem_pool); 2572 2573 return; 2574 } 2575 2576 static void 2577 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2578 { 2579 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2580 struct fc_rport *rport; 2581 struct lpfc_rport_data *rdata; 2582 struct fc_rport_identifiers rport_ids; 2583 struct lpfc_hba *phba = vport->phba; 2584 2585 /* Remote port has reappeared. Re-register w/ FC transport */ 2586 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 2587 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 2588 rport_ids.port_id = ndlp->nlp_DID; 2589 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 2590 2591 /* 2592 * We leave our node pointer in rport->dd_data when we unregister a 2593 * FCP target port. But fc_remote_port_add zeros the space to which 2594 * rport->dd_data points. So, if we're reusing a previously 2595 * registered port, drop the reference that we took the last time we 2596 * registered the port. 2597 */ 2598 if (ndlp->rport && ndlp->rport->dd_data && 2599 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) 2600 lpfc_nlp_put(ndlp); 2601 2602 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 2603 "rport add: did:x%x flg:x%x type x%x", 2604 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 2605 2606 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 2607 if (!rport || !get_device(&rport->dev)) { 2608 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2609 "Warning: fc_remote_port_add failed\n"); 2610 return; 2611 } 2612 2613 /* initialize static port data */ 2614 rport->maxframe_size = ndlp->nlp_maxframe; 2615 rport->supported_classes = ndlp->nlp_class_sup; 2616 rdata = rport->dd_data; 2617 rdata->pnode = lpfc_nlp_get(ndlp); 2618 2619 if (ndlp->nlp_type & NLP_FCP_TARGET) 2620 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 2621 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 2622 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 2623 2624 2625 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 2626 fc_remote_port_rolechg(rport, rport_ids.roles); 2627 2628 if ((rport->scsi_target_id != -1) && 2629 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 2630 ndlp->nlp_sid = rport->scsi_target_id; 2631 } 2632 return; 2633 } 2634 2635 static void 2636 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 2637 { 2638 struct fc_rport *rport = ndlp->rport; 2639 2640 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 2641 "rport delete: did:x%x flg:x%x type x%x", 2642 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 2643 2644 fc_remote_port_delete(rport); 2645 2646 return; 2647 } 2648 2649 static void 2650 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 2651 { 2652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2653 2654 spin_lock_irq(shost->host_lock); 2655 switch (state) { 2656 case NLP_STE_UNUSED_NODE: 2657 vport->fc_unused_cnt += count; 2658 break; 2659 case NLP_STE_PLOGI_ISSUE: 2660 vport->fc_plogi_cnt += count; 2661 break; 2662 case NLP_STE_ADISC_ISSUE: 2663 vport->fc_adisc_cnt += count; 2664 break; 2665 case NLP_STE_REG_LOGIN_ISSUE: 2666 vport->fc_reglogin_cnt += count; 2667 break; 2668 case NLP_STE_PRLI_ISSUE: 2669 vport->fc_prli_cnt += count; 2670 break; 2671 case NLP_STE_UNMAPPED_NODE: 2672 vport->fc_unmap_cnt += count; 2673 break; 2674 case NLP_STE_MAPPED_NODE: 2675 vport->fc_map_cnt += count; 2676 break; 2677 case NLP_STE_NPR_NODE: 2678 vport->fc_npr_cnt += count; 2679 break; 2680 } 2681 spin_unlock_irq(shost->host_lock); 2682 } 2683 2684 static void 2685 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2686 int old_state, int new_state) 2687 { 2688 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2689 2690 if (new_state == NLP_STE_UNMAPPED_NODE) { 2691 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 2692 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 2693 ndlp->nlp_type |= NLP_FC_NODE; 2694 } 2695 if (new_state == NLP_STE_MAPPED_NODE) 2696 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 2697 if (new_state == NLP_STE_NPR_NODE) 2698 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 2699 2700 /* Transport interface */ 2701 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 2702 old_state == NLP_STE_UNMAPPED_NODE)) { 2703 vport->phba->nport_event_cnt++; 2704 lpfc_unregister_remote_port(ndlp); 2705 } 2706 2707 if (new_state == NLP_STE_MAPPED_NODE || 2708 new_state == NLP_STE_UNMAPPED_NODE) { 2709 vport->phba->nport_event_cnt++; 2710 /* 2711 * Tell the fc transport about the port, if we haven't 2712 * already. If we have, and it's a scsi entity, be 2713 * sure to unblock any attached scsi devices 2714 */ 2715 lpfc_register_remote_port(vport, ndlp); 2716 } 2717 if ((new_state == NLP_STE_MAPPED_NODE) && 2718 (vport->stat_data_enabled)) { 2719 /* 2720 * A new target is discovered, if there is no buffer for 2721 * statistical data collection allocate buffer. 2722 */ 2723 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 2724 sizeof(struct lpfc_scsicmd_bkt), 2725 GFP_KERNEL); 2726 2727 if (!ndlp->lat_data) 2728 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 2729 "0286 lpfc_nlp_state_cleanup failed to " 2730 "allocate statistical data buffer DID " 2731 "0x%x\n", ndlp->nlp_DID); 2732 } 2733 /* 2734 * if we added to Mapped list, but the remote port 2735 * registration failed or assigned a target id outside 2736 * our presentable range - move the node to the 2737 * Unmapped List 2738 */ 2739 if (new_state == NLP_STE_MAPPED_NODE && 2740 (!ndlp->rport || 2741 ndlp->rport->scsi_target_id == -1 || 2742 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 2743 spin_lock_irq(shost->host_lock); 2744 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 2745 spin_unlock_irq(shost->host_lock); 2746 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2747 } 2748 } 2749 2750 static char * 2751 lpfc_nlp_state_name(char *buffer, size_t size, int state) 2752 { 2753 static char *states[] = { 2754 [NLP_STE_UNUSED_NODE] = "UNUSED", 2755 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 2756 [NLP_STE_ADISC_ISSUE] = "ADISC", 2757 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 2758 [NLP_STE_PRLI_ISSUE] = "PRLI", 2759 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 2760 [NLP_STE_MAPPED_NODE] = "MAPPED", 2761 [NLP_STE_NPR_NODE] = "NPR", 2762 }; 2763 2764 if (state < NLP_STE_MAX_STATE && states[state]) 2765 strlcpy(buffer, states[state], size); 2766 else 2767 snprintf(buffer, size, "unknown (%d)", state); 2768 return buffer; 2769 } 2770 2771 void 2772 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2773 int state) 2774 { 2775 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2776 int old_state = ndlp->nlp_state; 2777 char name1[16], name2[16]; 2778 2779 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 2780 "0904 NPort state transition x%06x, %s -> %s\n", 2781 ndlp->nlp_DID, 2782 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 2783 lpfc_nlp_state_name(name2, sizeof(name2), state)); 2784 2785 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2786 "node statechg did:x%x old:%d ste:%d", 2787 ndlp->nlp_DID, old_state, state); 2788 2789 if (old_state == NLP_STE_NPR_NODE && 2790 state != NLP_STE_NPR_NODE) 2791 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2792 if (old_state == NLP_STE_UNMAPPED_NODE) { 2793 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 2794 ndlp->nlp_type &= ~NLP_FC_NODE; 2795 } 2796 2797 if (list_empty(&ndlp->nlp_listp)) { 2798 spin_lock_irq(shost->host_lock); 2799 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 2800 spin_unlock_irq(shost->host_lock); 2801 } else if (old_state) 2802 lpfc_nlp_counters(vport, old_state, -1); 2803 2804 ndlp->nlp_state = state; 2805 lpfc_nlp_counters(vport, state, 1); 2806 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 2807 } 2808 2809 void 2810 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2811 { 2812 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2813 2814 if (list_empty(&ndlp->nlp_listp)) { 2815 spin_lock_irq(shost->host_lock); 2816 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 2817 spin_unlock_irq(shost->host_lock); 2818 } 2819 } 2820 2821 void 2822 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2823 { 2824 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2825 2826 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2827 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 2828 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 2829 spin_lock_irq(shost->host_lock); 2830 list_del_init(&ndlp->nlp_listp); 2831 spin_unlock_irq(shost->host_lock); 2832 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 2833 NLP_STE_UNUSED_NODE); 2834 } 2835 2836 static void 2837 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2838 { 2839 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2840 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 2841 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 2842 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 2843 NLP_STE_UNUSED_NODE); 2844 } 2845 /** 2846 * lpfc_initialize_node - Initialize all fields of node object 2847 * @vport: Pointer to Virtual Port object. 2848 * @ndlp: Pointer to FC node object. 2849 * @did: FC_ID of the node. 2850 * 2851 * This function is always called when node object need to be initialized. 2852 * It initializes all the fields of the node object. Although the reference 2853 * to phba from @ndlp can be obtained indirectly through it's reference to 2854 * @vport, a direct reference to phba is taken here by @ndlp. This is due 2855 * to the life-span of the @ndlp might go beyond the existence of @vport as 2856 * the final release of ndlp is determined by its reference count. And, the 2857 * operation on @ndlp needs the reference to phba. 2858 **/ 2859 static inline void 2860 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2861 uint32_t did) 2862 { 2863 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 2864 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 2865 init_timer(&ndlp->nlp_delayfunc); 2866 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 2867 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 2868 ndlp->nlp_DID = did; 2869 ndlp->vport = vport; 2870 ndlp->phba = vport->phba; 2871 ndlp->nlp_sid = NLP_NO_SID; 2872 kref_init(&ndlp->kref); 2873 NLP_INT_NODE_ACT(ndlp); 2874 atomic_set(&ndlp->cmd_pending, 0); 2875 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; 2876 } 2877 2878 struct lpfc_nodelist * 2879 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2880 int state) 2881 { 2882 struct lpfc_hba *phba = vport->phba; 2883 uint32_t did; 2884 unsigned long flags; 2885 2886 if (!ndlp) 2887 return NULL; 2888 2889 spin_lock_irqsave(&phba->ndlp_lock, flags); 2890 /* The ndlp should not be in memory free mode */ 2891 if (NLP_CHK_FREE_REQ(ndlp)) { 2892 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2893 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 2894 "0277 lpfc_enable_node: ndlp:x%p " 2895 "usgmap:x%x refcnt:%d\n", 2896 (void *)ndlp, ndlp->nlp_usg_map, 2897 atomic_read(&ndlp->kref.refcount)); 2898 return NULL; 2899 } 2900 /* The ndlp should not already be in active mode */ 2901 if (NLP_CHK_NODE_ACT(ndlp)) { 2902 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2903 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 2904 "0278 lpfc_enable_node: ndlp:x%p " 2905 "usgmap:x%x refcnt:%d\n", 2906 (void *)ndlp, ndlp->nlp_usg_map, 2907 atomic_read(&ndlp->kref.refcount)); 2908 return NULL; 2909 } 2910 2911 /* Keep the original DID */ 2912 did = ndlp->nlp_DID; 2913 2914 /* re-initialize ndlp except of ndlp linked list pointer */ 2915 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 2916 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 2917 lpfc_initialize_node(vport, ndlp, did); 2918 2919 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2920 2921 if (state != NLP_STE_UNUSED_NODE) 2922 lpfc_nlp_set_state(vport, ndlp, state); 2923 2924 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 2925 "node enable: did:x%x", 2926 ndlp->nlp_DID, 0, 0); 2927 return ndlp; 2928 } 2929 2930 void 2931 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 2932 { 2933 /* 2934 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 2935 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 2936 * the ndlp from the vport. The ndlp marked as UNUSED on the list 2937 * until ALL other outstanding threads have completed. We check 2938 * that the ndlp not already in the UNUSED state before we proceed. 2939 */ 2940 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2941 return; 2942 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 2943 lpfc_nlp_put(ndlp); 2944 return; 2945 } 2946 2947 /* 2948 * Start / ReStart rescue timer for Discovery / RSCN handling 2949 */ 2950 void 2951 lpfc_set_disctmo(struct lpfc_vport *vport) 2952 { 2953 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2954 struct lpfc_hba *phba = vport->phba; 2955 uint32_t tmo; 2956 2957 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 2958 /* For FAN, timeout should be greater than edtov */ 2959 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 2960 } else { 2961 /* Normal discovery timeout should be > than ELS/CT timeout 2962 * FC spec states we need 3 * ratov for CT requests 2963 */ 2964 tmo = ((phba->fc_ratov * 3) + 3); 2965 } 2966 2967 2968 if (!timer_pending(&vport->fc_disctmo)) { 2969 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 2970 "set disc timer: tmo:x%x state:x%x flg:x%x", 2971 tmo, vport->port_state, vport->fc_flag); 2972 } 2973 2974 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo); 2975 spin_lock_irq(shost->host_lock); 2976 vport->fc_flag |= FC_DISC_TMO; 2977 spin_unlock_irq(shost->host_lock); 2978 2979 /* Start Discovery Timer state <hba_state> */ 2980 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2981 "0247 Start Discovery Timer state x%x " 2982 "Data: x%x x%lx x%x x%x\n", 2983 vport->port_state, tmo, 2984 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 2985 vport->fc_adisc_cnt); 2986 2987 return; 2988 } 2989 2990 /* 2991 * Cancel rescue timer for Discovery / RSCN handling 2992 */ 2993 int 2994 lpfc_can_disctmo(struct lpfc_vport *vport) 2995 { 2996 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2997 unsigned long iflags; 2998 2999 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3000 "can disc timer: state:x%x rtry:x%x flg:x%x", 3001 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 3002 3003 /* Turn off discovery timer if its running */ 3004 if (vport->fc_flag & FC_DISC_TMO) { 3005 spin_lock_irqsave(shost->host_lock, iflags); 3006 vport->fc_flag &= ~FC_DISC_TMO; 3007 spin_unlock_irqrestore(shost->host_lock, iflags); 3008 del_timer_sync(&vport->fc_disctmo); 3009 spin_lock_irqsave(&vport->work_port_lock, iflags); 3010 vport->work_port_events &= ~WORKER_DISC_TMO; 3011 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 3012 } 3013 3014 /* Cancel Discovery Timer state <hba_state> */ 3015 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3016 "0248 Cancel Discovery Timer state x%x " 3017 "Data: x%x x%x x%x\n", 3018 vport->port_state, vport->fc_flag, 3019 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 3020 return 0; 3021 } 3022 3023 /* 3024 * Check specified ring for outstanding IOCB on the SLI queue 3025 * Return true if iocb matches the specified nport 3026 */ 3027 int 3028 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 3029 struct lpfc_sli_ring *pring, 3030 struct lpfc_iocbq *iocb, 3031 struct lpfc_nodelist *ndlp) 3032 { 3033 struct lpfc_sli *psli = &phba->sli; 3034 IOCB_t *icmd = &iocb->iocb; 3035 struct lpfc_vport *vport = ndlp->vport; 3036 3037 if (iocb->vport != vport) 3038 return 0; 3039 3040 if (pring->ringno == LPFC_ELS_RING) { 3041 switch (icmd->ulpCommand) { 3042 case CMD_GEN_REQUEST64_CR: 3043 if (iocb->context_un.ndlp == ndlp) 3044 return 1; 3045 case CMD_ELS_REQUEST64_CR: 3046 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 3047 return 1; 3048 case CMD_XMIT_ELS_RSP64_CX: 3049 if (iocb->context1 == (uint8_t *) ndlp) 3050 return 1; 3051 } 3052 } else if (pring->ringno == psli->extra_ring) { 3053 3054 } else if (pring->ringno == psli->fcp_ring) { 3055 /* Skip match check if waiting to relogin to FCP target */ 3056 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 3057 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 3058 return 0; 3059 } 3060 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 3061 return 1; 3062 } 3063 } else if (pring->ringno == psli->next_ring) { 3064 3065 } 3066 return 0; 3067 } 3068 3069 /* 3070 * Free resources / clean up outstanding I/Os 3071 * associated with nlp_rpi in the LPFC_NODELIST entry. 3072 */ 3073 static int 3074 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 3075 { 3076 LIST_HEAD(completions); 3077 struct lpfc_sli *psli; 3078 struct lpfc_sli_ring *pring; 3079 struct lpfc_iocbq *iocb, *next_iocb; 3080 uint32_t rpi, i; 3081 3082 lpfc_fabric_abort_nport(ndlp); 3083 3084 /* 3085 * Everything that matches on txcmplq will be returned 3086 * by firmware with a no rpi error. 3087 */ 3088 psli = &phba->sli; 3089 rpi = ndlp->nlp_rpi; 3090 if (ndlp->nlp_flag & NLP_RPI_VALID) { 3091 /* Now process each ring */ 3092 for (i = 0; i < psli->num_rings; i++) { 3093 pring = &psli->ring[i]; 3094 3095 spin_lock_irq(&phba->hbalock); 3096 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 3097 list) { 3098 /* 3099 * Check to see if iocb matches the nport we are 3100 * looking for 3101 */ 3102 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 3103 ndlp))) { 3104 /* It matches, so deque and call compl 3105 with an error */ 3106 list_move_tail(&iocb->list, 3107 &completions); 3108 pring->txq_cnt--; 3109 } 3110 } 3111 spin_unlock_irq(&phba->hbalock); 3112 } 3113 } 3114 3115 /* Cancel all the IOCBs from the completions list */ 3116 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 3117 IOERR_SLI_ABORTED); 3118 3119 return 0; 3120 } 3121 3122 /* 3123 * Free rpi associated with LPFC_NODELIST entry. 3124 * This routine is called from lpfc_freenode(), when we are removing 3125 * a LPFC_NODELIST entry. It is also called if the driver initiates a 3126 * LOGO that completes successfully, and we are waiting to PLOGI back 3127 * to the remote NPort. In addition, it is called after we receive 3128 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 3129 * we are waiting to PLOGI back to the remote NPort. 3130 */ 3131 int 3132 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3133 { 3134 struct lpfc_hba *phba = vport->phba; 3135 LPFC_MBOXQ_t *mbox; 3136 int rc; 3137 3138 if (ndlp->nlp_flag & NLP_RPI_VALID) { 3139 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3140 if (mbox) { 3141 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox); 3142 mbox->vport = vport; 3143 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3144 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3145 if (rc == MBX_NOT_FINISHED) 3146 mempool_free(mbox, phba->mbox_mem_pool); 3147 } 3148 lpfc_no_rpi(phba, ndlp); 3149 ndlp->nlp_rpi = 0; 3150 ndlp->nlp_flag &= ~NLP_RPI_VALID; 3151 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3152 return 1; 3153 } 3154 return 0; 3155 } 3156 3157 void 3158 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 3159 { 3160 struct lpfc_hba *phba = vport->phba; 3161 LPFC_MBOXQ_t *mbox; 3162 int rc; 3163 3164 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3165 if (mbox) { 3166 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox); 3167 mbox->vport = vport; 3168 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3169 mbox->context1 = NULL; 3170 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 3171 if (rc != MBX_TIMEOUT) 3172 mempool_free(mbox, phba->mbox_mem_pool); 3173 3174 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 3175 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3176 "1836 Could not issue " 3177 "unreg_login(all_rpis) status %d\n", rc); 3178 } 3179 } 3180 3181 void 3182 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 3183 { 3184 struct lpfc_hba *phba = vport->phba; 3185 LPFC_MBOXQ_t *mbox; 3186 int rc; 3187 3188 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3189 if (mbox) { 3190 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox); 3191 mbox->vport = vport; 3192 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3193 mbox->context1 = NULL; 3194 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 3195 if (rc != MBX_TIMEOUT) 3196 mempool_free(mbox, phba->mbox_mem_pool); 3197 3198 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 3199 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3200 "1815 Could not issue " 3201 "unreg_did (default rpis) status %d\n", 3202 rc); 3203 } 3204 } 3205 3206 /* 3207 * Free resources associated with LPFC_NODELIST entry 3208 * so it can be freed. 3209 */ 3210 static int 3211 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3212 { 3213 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3214 struct lpfc_hba *phba = vport->phba; 3215 LPFC_MBOXQ_t *mb, *nextmb; 3216 struct lpfc_dmabuf *mp; 3217 3218 /* Cleanup node for NPort <nlp_DID> */ 3219 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3220 "0900 Cleanup node for NPort x%x " 3221 "Data: x%x x%x x%x\n", 3222 ndlp->nlp_DID, ndlp->nlp_flag, 3223 ndlp->nlp_state, ndlp->nlp_rpi); 3224 if (NLP_CHK_FREE_REQ(ndlp)) { 3225 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 3226 "0280 lpfc_cleanup_node: ndlp:x%p " 3227 "usgmap:x%x refcnt:%d\n", 3228 (void *)ndlp, ndlp->nlp_usg_map, 3229 atomic_read(&ndlp->kref.refcount)); 3230 lpfc_dequeue_node(vport, ndlp); 3231 } else { 3232 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 3233 "0281 lpfc_cleanup_node: ndlp:x%p " 3234 "usgmap:x%x refcnt:%d\n", 3235 (void *)ndlp, ndlp->nlp_usg_map, 3236 atomic_read(&ndlp->kref.refcount)); 3237 lpfc_disable_node(vport, ndlp); 3238 } 3239 3240 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 3241 if ((mb = phba->sli.mbox_active)) { 3242 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 3243 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 3244 mb->context2 = NULL; 3245 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3246 } 3247 } 3248 3249 spin_lock_irq(&phba->hbalock); 3250 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 3251 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 3252 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 3253 mp = (struct lpfc_dmabuf *) (mb->context1); 3254 if (mp) { 3255 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 3256 kfree(mp); 3257 } 3258 list_del(&mb->list); 3259 mempool_free(mb, phba->mbox_mem_pool); 3260 /* We shall not invoke the lpfc_nlp_put to decrement 3261 * the ndlp reference count as we are in the process 3262 * of lpfc_nlp_release. 3263 */ 3264 } 3265 } 3266 spin_unlock_irq(&phba->hbalock); 3267 3268 lpfc_els_abort(phba, ndlp); 3269 3270 spin_lock_irq(shost->host_lock); 3271 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 3272 spin_unlock_irq(shost->host_lock); 3273 3274 ndlp->nlp_last_elscmd = 0; 3275 del_timer_sync(&ndlp->nlp_delayfunc); 3276 3277 list_del_init(&ndlp->els_retry_evt.evt_listp); 3278 list_del_init(&ndlp->dev_loss_evt.evt_listp); 3279 3280 lpfc_unreg_rpi(vport, ndlp); 3281 3282 return 0; 3283 } 3284 3285 /* 3286 * Check to see if we can free the nlp back to the freelist. 3287 * If we are in the middle of using the nlp in the discovery state 3288 * machine, defer the free till we reach the end of the state machine. 3289 */ 3290 static void 3291 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3292 { 3293 struct lpfc_hba *phba = vport->phba; 3294 struct lpfc_rport_data *rdata; 3295 LPFC_MBOXQ_t *mbox; 3296 int rc; 3297 3298 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3299 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 3300 !(ndlp->nlp_flag & NLP_RPI_VALID)) { 3301 /* For this case we need to cleanup the default rpi 3302 * allocated by the firmware. 3303 */ 3304 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 3305 != NULL) { 3306 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 3307 (uint8_t *) &vport->fc_sparam, mbox, 0); 3308 if (rc) { 3309 mempool_free(mbox, phba->mbox_mem_pool); 3310 } 3311 else { 3312 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 3313 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 3314 mbox->vport = vport; 3315 mbox->context2 = NULL; 3316 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3317 if (rc == MBX_NOT_FINISHED) { 3318 mempool_free(mbox, phba->mbox_mem_pool); 3319 } 3320 } 3321 } 3322 } 3323 lpfc_cleanup_node(vport, ndlp); 3324 3325 /* 3326 * We can get here with a non-NULL ndlp->rport because when we 3327 * unregister a rport we don't break the rport/node linkage. So if we 3328 * do, make sure we don't leaving any dangling pointers behind. 3329 */ 3330 if (ndlp->rport) { 3331 rdata = ndlp->rport->dd_data; 3332 rdata->pnode = NULL; 3333 ndlp->rport = NULL; 3334 } 3335 } 3336 3337 static int 3338 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3339 uint32_t did) 3340 { 3341 D_ID mydid, ndlpdid, matchdid; 3342 3343 if (did == Bcast_DID) 3344 return 0; 3345 3346 /* First check for Direct match */ 3347 if (ndlp->nlp_DID == did) 3348 return 1; 3349 3350 /* Next check for area/domain identically equals 0 match */ 3351 mydid.un.word = vport->fc_myDID; 3352 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 3353 return 0; 3354 } 3355 3356 matchdid.un.word = did; 3357 ndlpdid.un.word = ndlp->nlp_DID; 3358 if (matchdid.un.b.id == ndlpdid.un.b.id) { 3359 if ((mydid.un.b.domain == matchdid.un.b.domain) && 3360 (mydid.un.b.area == matchdid.un.b.area)) { 3361 if ((ndlpdid.un.b.domain == 0) && 3362 (ndlpdid.un.b.area == 0)) { 3363 if (ndlpdid.un.b.id) 3364 return 1; 3365 } 3366 return 0; 3367 } 3368 3369 matchdid.un.word = ndlp->nlp_DID; 3370 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 3371 (mydid.un.b.area == ndlpdid.un.b.area)) { 3372 if ((matchdid.un.b.domain == 0) && 3373 (matchdid.un.b.area == 0)) { 3374 if (matchdid.un.b.id) 3375 return 1; 3376 } 3377 } 3378 } 3379 return 0; 3380 } 3381 3382 /* Search for a nodelist entry */ 3383 static struct lpfc_nodelist * 3384 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 3385 { 3386 struct lpfc_nodelist *ndlp; 3387 uint32_t data1; 3388 3389 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3390 if (lpfc_matchdid(vport, ndlp, did)) { 3391 data1 = (((uint32_t) ndlp->nlp_state << 24) | 3392 ((uint32_t) ndlp->nlp_xri << 16) | 3393 ((uint32_t) ndlp->nlp_type << 8) | 3394 ((uint32_t) ndlp->nlp_rpi & 0xff)); 3395 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3396 "0929 FIND node DID " 3397 "Data: x%p x%x x%x x%x\n", 3398 ndlp, ndlp->nlp_DID, 3399 ndlp->nlp_flag, data1); 3400 return ndlp; 3401 } 3402 } 3403 3404 /* FIND node did <did> NOT FOUND */ 3405 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3406 "0932 FIND node did x%x NOT FOUND.\n", did); 3407 return NULL; 3408 } 3409 3410 struct lpfc_nodelist * 3411 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 3412 { 3413 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3414 struct lpfc_nodelist *ndlp; 3415 3416 spin_lock_irq(shost->host_lock); 3417 ndlp = __lpfc_findnode_did(vport, did); 3418 spin_unlock_irq(shost->host_lock); 3419 return ndlp; 3420 } 3421 3422 struct lpfc_nodelist * 3423 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 3424 { 3425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3426 struct lpfc_nodelist *ndlp; 3427 3428 ndlp = lpfc_findnode_did(vport, did); 3429 if (!ndlp) { 3430 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 3431 lpfc_rscn_payload_check(vport, did) == 0) 3432 return NULL; 3433 ndlp = (struct lpfc_nodelist *) 3434 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 3435 if (!ndlp) 3436 return NULL; 3437 lpfc_nlp_init(vport, ndlp, did); 3438 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 3439 spin_lock_irq(shost->host_lock); 3440 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3441 spin_unlock_irq(shost->host_lock); 3442 return ndlp; 3443 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3444 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 3445 if (!ndlp) 3446 return NULL; 3447 spin_lock_irq(shost->host_lock); 3448 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3449 spin_unlock_irq(shost->host_lock); 3450 return ndlp; 3451 } 3452 3453 if ((vport->fc_flag & FC_RSCN_MODE) && 3454 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 3455 if (lpfc_rscn_payload_check(vport, did)) { 3456 /* If we've already recieved a PLOGI from this NPort 3457 * we don't need to try to discover it again. 3458 */ 3459 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 3460 return NULL; 3461 3462 /* Since this node is marked for discovery, 3463 * delay timeout is not needed. 3464 */ 3465 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3466 spin_lock_irq(shost->host_lock); 3467 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3468 spin_unlock_irq(shost->host_lock); 3469 } else 3470 ndlp = NULL; 3471 } else { 3472 /* If we've already recieved a PLOGI from this NPort, 3473 * or we are already in the process of discovery on it, 3474 * we don't need to try to discover it again. 3475 */ 3476 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 3477 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 3478 ndlp->nlp_flag & NLP_RCV_PLOGI) 3479 return NULL; 3480 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 3481 spin_lock_irq(shost->host_lock); 3482 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 3483 spin_unlock_irq(shost->host_lock); 3484 } 3485 return ndlp; 3486 } 3487 3488 /* Build a list of nodes to discover based on the loopmap */ 3489 void 3490 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 3491 { 3492 struct lpfc_hba *phba = vport->phba; 3493 int j; 3494 uint32_t alpa, index; 3495 3496 if (!lpfc_is_link_up(phba)) 3497 return; 3498 3499 if (phba->fc_topology != TOPOLOGY_LOOP) 3500 return; 3501 3502 /* Check for loop map present or not */ 3503 if (phba->alpa_map[0]) { 3504 for (j = 1; j <= phba->alpa_map[0]; j++) { 3505 alpa = phba->alpa_map[j]; 3506 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 3507 continue; 3508 lpfc_setup_disc_node(vport, alpa); 3509 } 3510 } else { 3511 /* No alpamap, so try all alpa's */ 3512 for (j = 0; j < FC_MAXLOOP; j++) { 3513 /* If cfg_scan_down is set, start from highest 3514 * ALPA (0xef) to lowest (0x1). 3515 */ 3516 if (vport->cfg_scan_down) 3517 index = j; 3518 else 3519 index = FC_MAXLOOP - j - 1; 3520 alpa = lpfcAlpaArray[index]; 3521 if ((vport->fc_myDID & 0xff) == alpa) 3522 continue; 3523 lpfc_setup_disc_node(vport, alpa); 3524 } 3525 } 3526 return; 3527 } 3528 3529 void 3530 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 3531 { 3532 LPFC_MBOXQ_t *mbox; 3533 struct lpfc_sli *psli = &phba->sli; 3534 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 3535 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 3536 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 3537 int rc; 3538 3539 /* 3540 * if it's not a physical port or if we already send 3541 * clear_la then don't send it. 3542 */ 3543 if ((phba->link_state >= LPFC_CLEAR_LA) || 3544 (vport->port_type != LPFC_PHYSICAL_PORT) || 3545 (phba->sli_rev == LPFC_SLI_REV4)) 3546 return; 3547 3548 /* Link up discovery */ 3549 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 3550 phba->link_state = LPFC_CLEAR_LA; 3551 lpfc_clear_la(phba, mbox); 3552 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 3553 mbox->vport = vport; 3554 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3555 if (rc == MBX_NOT_FINISHED) { 3556 mempool_free(mbox, phba->mbox_mem_pool); 3557 lpfc_disc_flush_list(vport); 3558 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 3559 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 3560 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 3561 phba->link_state = LPFC_HBA_ERROR; 3562 } 3563 } 3564 } 3565 3566 /* Reg_vpi to tell firmware to resume normal operations */ 3567 void 3568 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 3569 { 3570 LPFC_MBOXQ_t *regvpimbox; 3571 3572 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3573 if (regvpimbox) { 3574 lpfc_reg_vpi(vport, regvpimbox); 3575 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 3576 regvpimbox->vport = vport; 3577 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 3578 == MBX_NOT_FINISHED) { 3579 mempool_free(regvpimbox, phba->mbox_mem_pool); 3580 } 3581 } 3582 } 3583 3584 /* Start Link up / RSCN discovery on NPR nodes */ 3585 void 3586 lpfc_disc_start(struct lpfc_vport *vport) 3587 { 3588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3589 struct lpfc_hba *phba = vport->phba; 3590 uint32_t num_sent; 3591 uint32_t clear_la_pending; 3592 int did_changed; 3593 3594 if (!lpfc_is_link_up(phba)) 3595 return; 3596 3597 if (phba->link_state == LPFC_CLEAR_LA) 3598 clear_la_pending = 1; 3599 else 3600 clear_la_pending = 0; 3601 3602 if (vport->port_state < LPFC_VPORT_READY) 3603 vport->port_state = LPFC_DISC_AUTH; 3604 3605 lpfc_set_disctmo(vport); 3606 3607 if (vport->fc_prevDID == vport->fc_myDID) 3608 did_changed = 0; 3609 else 3610 did_changed = 1; 3611 3612 vport->fc_prevDID = vport->fc_myDID; 3613 vport->num_disc_nodes = 0; 3614 3615 /* Start Discovery state <hba_state> */ 3616 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3617 "0202 Start Discovery hba state x%x " 3618 "Data: x%x x%x x%x\n", 3619 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 3620 vport->fc_adisc_cnt); 3621 3622 /* First do ADISCs - if any */ 3623 num_sent = lpfc_els_disc_adisc(vport); 3624 3625 if (num_sent) 3626 return; 3627 3628 /* 3629 * For SLI3, cmpl_reg_vpi will set port_state to READY, and 3630 * continue discovery. 3631 */ 3632 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 3633 !(vport->fc_flag & FC_PT2PT) && 3634 !(vport->fc_flag & FC_RSCN_MODE) && 3635 (phba->sli_rev < LPFC_SLI_REV4)) { 3636 lpfc_issue_reg_vpi(phba, vport); 3637 return; 3638 } 3639 3640 /* 3641 * For SLI2, we need to set port_state to READY and continue 3642 * discovery. 3643 */ 3644 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 3645 /* If we get here, there is nothing to ADISC */ 3646 if (vport->port_type == LPFC_PHYSICAL_PORT) 3647 lpfc_issue_clear_la(phba, vport); 3648 3649 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 3650 vport->num_disc_nodes = 0; 3651 /* go thru NPR nodes and issue ELS PLOGIs */ 3652 if (vport->fc_npr_cnt) 3653 lpfc_els_disc_plogi(vport); 3654 3655 if (!vport->num_disc_nodes) { 3656 spin_lock_irq(shost->host_lock); 3657 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3658 spin_unlock_irq(shost->host_lock); 3659 lpfc_can_disctmo(vport); 3660 } 3661 } 3662 vport->port_state = LPFC_VPORT_READY; 3663 } else { 3664 /* Next do PLOGIs - if any */ 3665 num_sent = lpfc_els_disc_plogi(vport); 3666 3667 if (num_sent) 3668 return; 3669 3670 if (vport->fc_flag & FC_RSCN_MODE) { 3671 /* Check to see if more RSCNs came in while we 3672 * were processing this one. 3673 */ 3674 if ((vport->fc_rscn_id_cnt == 0) && 3675 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 3676 spin_lock_irq(shost->host_lock); 3677 vport->fc_flag &= ~FC_RSCN_MODE; 3678 spin_unlock_irq(shost->host_lock); 3679 lpfc_can_disctmo(vport); 3680 } else 3681 lpfc_els_handle_rscn(vport); 3682 } 3683 } 3684 return; 3685 } 3686 3687 /* 3688 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 3689 * ring the match the sppecified nodelist. 3690 */ 3691 static void 3692 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 3693 { 3694 LIST_HEAD(completions); 3695 struct lpfc_sli *psli; 3696 IOCB_t *icmd; 3697 struct lpfc_iocbq *iocb, *next_iocb; 3698 struct lpfc_sli_ring *pring; 3699 3700 psli = &phba->sli; 3701 pring = &psli->ring[LPFC_ELS_RING]; 3702 3703 /* Error matching iocb on txq or txcmplq 3704 * First check the txq. 3705 */ 3706 spin_lock_irq(&phba->hbalock); 3707 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 3708 if (iocb->context1 != ndlp) { 3709 continue; 3710 } 3711 icmd = &iocb->iocb; 3712 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 3713 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 3714 3715 list_move_tail(&iocb->list, &completions); 3716 pring->txq_cnt--; 3717 } 3718 } 3719 3720 /* Next check the txcmplq */ 3721 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 3722 if (iocb->context1 != ndlp) { 3723 continue; 3724 } 3725 icmd = &iocb->iocb; 3726 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 3727 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 3728 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 3729 } 3730 } 3731 spin_unlock_irq(&phba->hbalock); 3732 3733 /* Cancel all the IOCBs from the completions list */ 3734 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 3735 IOERR_SLI_ABORTED); 3736 } 3737 3738 static void 3739 lpfc_disc_flush_list(struct lpfc_vport *vport) 3740 { 3741 struct lpfc_nodelist *ndlp, *next_ndlp; 3742 struct lpfc_hba *phba = vport->phba; 3743 3744 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 3745 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 3746 nlp_listp) { 3747 if (!NLP_CHK_NODE_ACT(ndlp)) 3748 continue; 3749 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 3750 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 3751 lpfc_free_tx(phba, ndlp); 3752 } 3753 } 3754 } 3755 } 3756 3757 void 3758 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 3759 { 3760 lpfc_els_flush_rscn(vport); 3761 lpfc_els_flush_cmd(vport); 3762 lpfc_disc_flush_list(vport); 3763 } 3764 3765 /*****************************************************************************/ 3766 /* 3767 * NAME: lpfc_disc_timeout 3768 * 3769 * FUNCTION: Fibre Channel driver discovery timeout routine. 3770 * 3771 * EXECUTION ENVIRONMENT: interrupt only 3772 * 3773 * CALLED FROM: 3774 * Timer function 3775 * 3776 * RETURNS: 3777 * none 3778 */ 3779 /*****************************************************************************/ 3780 void 3781 lpfc_disc_timeout(unsigned long ptr) 3782 { 3783 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 3784 struct lpfc_hba *phba = vport->phba; 3785 uint32_t tmo_posted; 3786 unsigned long flags = 0; 3787 3788 if (unlikely(!phba)) 3789 return; 3790 3791 spin_lock_irqsave(&vport->work_port_lock, flags); 3792 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 3793 if (!tmo_posted) 3794 vport->work_port_events |= WORKER_DISC_TMO; 3795 spin_unlock_irqrestore(&vport->work_port_lock, flags); 3796 3797 if (!tmo_posted) 3798 lpfc_worker_wake_up(phba); 3799 return; 3800 } 3801 3802 static void 3803 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 3804 { 3805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3806 struct lpfc_hba *phba = vport->phba; 3807 struct lpfc_sli *psli = &phba->sli; 3808 struct lpfc_nodelist *ndlp, *next_ndlp; 3809 LPFC_MBOXQ_t *initlinkmbox; 3810 int rc, clrlaerr = 0; 3811 3812 if (!(vport->fc_flag & FC_DISC_TMO)) 3813 return; 3814 3815 spin_lock_irq(shost->host_lock); 3816 vport->fc_flag &= ~FC_DISC_TMO; 3817 spin_unlock_irq(shost->host_lock); 3818 3819 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 3820 "disc timeout: state:x%x rtry:x%x flg:x%x", 3821 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 3822 3823 switch (vport->port_state) { 3824 3825 case LPFC_LOCAL_CFG_LINK: 3826 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 3827 * FAN 3828 */ 3829 /* FAN timeout */ 3830 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 3831 "0221 FAN timeout\n"); 3832 /* Start discovery by sending FLOGI, clean up old rpis */ 3833 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 3834 nlp_listp) { 3835 if (!NLP_CHK_NODE_ACT(ndlp)) 3836 continue; 3837 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 3838 continue; 3839 if (ndlp->nlp_type & NLP_FABRIC) { 3840 /* Clean up the ndlp on Fabric connections */ 3841 lpfc_drop_node(vport, ndlp); 3842 3843 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 3844 /* Fail outstanding IO now since device 3845 * is marked for PLOGI. 3846 */ 3847 lpfc_unreg_rpi(vport, ndlp); 3848 } 3849 } 3850 if (vport->port_state != LPFC_FLOGI) { 3851 lpfc_initial_flogi(vport); 3852 return; 3853 } 3854 break; 3855 3856 case LPFC_FDISC: 3857 case LPFC_FLOGI: 3858 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 3859 /* Initial FLOGI timeout */ 3860 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3861 "0222 Initial %s timeout\n", 3862 vport->vpi ? "FDISC" : "FLOGI"); 3863 3864 /* Assume no Fabric and go on with discovery. 3865 * Check for outstanding ELS FLOGI to abort. 3866 */ 3867 3868 /* FLOGI failed, so just use loop map to make discovery list */ 3869 lpfc_disc_list_loopmap(vport); 3870 3871 /* Start discovery */ 3872 lpfc_disc_start(vport); 3873 break; 3874 3875 case LPFC_FABRIC_CFG_LINK: 3876 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 3877 NameServer login */ 3878 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3879 "0223 Timeout while waiting for " 3880 "NameServer login\n"); 3881 /* Next look for NameServer ndlp */ 3882 ndlp = lpfc_findnode_did(vport, NameServer_DID); 3883 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 3884 lpfc_els_abort(phba, ndlp); 3885 3886 /* ReStart discovery */ 3887 goto restart_disc; 3888 3889 case LPFC_NS_QRY: 3890 /* Check for wait for NameServer Rsp timeout */ 3891 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3892 "0224 NameServer Query timeout " 3893 "Data: x%x x%x\n", 3894 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 3895 3896 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 3897 /* Try it one more time */ 3898 vport->fc_ns_retry++; 3899 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 3900 vport->fc_ns_retry, 0); 3901 if (rc == 0) 3902 break; 3903 } 3904 vport->fc_ns_retry = 0; 3905 3906 restart_disc: 3907 /* 3908 * Discovery is over. 3909 * set port_state to PORT_READY if SLI2. 3910 * cmpl_reg_vpi will set port_state to READY for SLI3. 3911 */ 3912 if (phba->sli_rev < LPFC_SLI_REV4) { 3913 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3914 lpfc_issue_reg_vpi(phba, vport); 3915 else { /* NPIV Not enabled */ 3916 lpfc_issue_clear_la(phba, vport); 3917 vport->port_state = LPFC_VPORT_READY; 3918 } 3919 } 3920 3921 /* Setup and issue mailbox INITIALIZE LINK command */ 3922 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3923 if (!initlinkmbox) { 3924 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3925 "0206 Device Discovery " 3926 "completion error\n"); 3927 phba->link_state = LPFC_HBA_ERROR; 3928 break; 3929 } 3930 3931 lpfc_linkdown(phba); 3932 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 3933 phba->cfg_link_speed); 3934 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 3935 initlinkmbox->vport = vport; 3936 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 3937 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 3938 lpfc_set_loopback_flag(phba); 3939 if (rc == MBX_NOT_FINISHED) 3940 mempool_free(initlinkmbox, phba->mbox_mem_pool); 3941 3942 break; 3943 3944 case LPFC_DISC_AUTH: 3945 /* Node Authentication timeout */ 3946 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3947 "0227 Node Authentication timeout\n"); 3948 lpfc_disc_flush_list(vport); 3949 3950 /* 3951 * set port_state to PORT_READY if SLI2. 3952 * cmpl_reg_vpi will set port_state to READY for SLI3. 3953 */ 3954 if (phba->sli_rev < LPFC_SLI_REV4) { 3955 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3956 lpfc_issue_reg_vpi(phba, vport); 3957 else { /* NPIV Not enabled */ 3958 lpfc_issue_clear_la(phba, vport); 3959 vport->port_state = LPFC_VPORT_READY; 3960 } 3961 } 3962 break; 3963 3964 case LPFC_VPORT_READY: 3965 if (vport->fc_flag & FC_RSCN_MODE) { 3966 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3967 "0231 RSCN timeout Data: x%x " 3968 "x%x\n", 3969 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 3970 3971 /* Cleanup any outstanding ELS commands */ 3972 lpfc_els_flush_cmd(vport); 3973 3974 lpfc_els_flush_rscn(vport); 3975 lpfc_disc_flush_list(vport); 3976 } 3977 break; 3978 3979 default: 3980 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3981 "0273 Unexpected discovery timeout, " 3982 "vport State x%x\n", vport->port_state); 3983 break; 3984 } 3985 3986 switch (phba->link_state) { 3987 case LPFC_CLEAR_LA: 3988 /* CLEAR LA timeout */ 3989 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 3990 "0228 CLEAR LA timeout\n"); 3991 clrlaerr = 1; 3992 break; 3993 3994 case LPFC_LINK_UP: 3995 lpfc_issue_clear_la(phba, vport); 3996 /* Drop thru */ 3997 case LPFC_LINK_UNKNOWN: 3998 case LPFC_WARM_START: 3999 case LPFC_INIT_START: 4000 case LPFC_INIT_MBX_CMDS: 4001 case LPFC_LINK_DOWN: 4002 case LPFC_HBA_ERROR: 4003 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 4004 "0230 Unexpected timeout, hba link " 4005 "state x%x\n", phba->link_state); 4006 clrlaerr = 1; 4007 break; 4008 4009 case LPFC_HBA_READY: 4010 break; 4011 } 4012 4013 if (clrlaerr) { 4014 lpfc_disc_flush_list(vport); 4015 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 4016 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 4017 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 4018 vport->port_state = LPFC_VPORT_READY; 4019 } 4020 4021 return; 4022 } 4023 4024 /* 4025 * This routine handles processing a NameServer REG_LOGIN mailbox 4026 * command upon completion. It is setup in the LPFC_MBOXQ 4027 * as the completion routine when the command is 4028 * handed off to the SLI layer. 4029 */ 4030 void 4031 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4032 { 4033 MAILBOX_t *mb = &pmb->u.mb; 4034 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 4035 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 4036 struct lpfc_vport *vport = pmb->vport; 4037 4038 pmb->context1 = NULL; 4039 4040 ndlp->nlp_rpi = mb->un.varWords[0]; 4041 ndlp->nlp_flag |= NLP_RPI_VALID; 4042 ndlp->nlp_type |= NLP_FABRIC; 4043 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4044 4045 /* 4046 * Start issuing Fabric-Device Management Interface (FDMI) command to 4047 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if 4048 * fdmi-on=2 (supporting RPA/hostnmae) 4049 */ 4050 4051 if (vport->cfg_fdmi_on == 1) 4052 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA); 4053 else 4054 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60); 4055 4056 /* decrement the node reference count held for this callback 4057 * function. 4058 */ 4059 lpfc_nlp_put(ndlp); 4060 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4061 kfree(mp); 4062 mempool_free(pmb, phba->mbox_mem_pool); 4063 4064 return; 4065 } 4066 4067 static int 4068 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 4069 { 4070 uint16_t *rpi = param; 4071 4072 return ndlp->nlp_rpi == *rpi; 4073 } 4074 4075 static int 4076 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 4077 { 4078 return memcmp(&ndlp->nlp_portname, param, 4079 sizeof(ndlp->nlp_portname)) == 0; 4080 } 4081 4082 static struct lpfc_nodelist * 4083 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 4084 { 4085 struct lpfc_nodelist *ndlp; 4086 4087 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4088 if (filter(ndlp, param)) 4089 return ndlp; 4090 } 4091 return NULL; 4092 } 4093 4094 /* 4095 * This routine looks up the ndlp lists for the given RPI. If rpi found it 4096 * returns the node list element pointer else return NULL. 4097 */ 4098 struct lpfc_nodelist * 4099 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 4100 { 4101 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 4102 } 4103 4104 /* 4105 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 4106 * returns the node element list pointer else return NULL. 4107 */ 4108 struct lpfc_nodelist * 4109 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 4110 { 4111 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4112 struct lpfc_nodelist *ndlp; 4113 4114 spin_lock_irq(shost->host_lock); 4115 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 4116 spin_unlock_irq(shost->host_lock); 4117 return ndlp; 4118 } 4119 4120 void 4121 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4122 uint32_t did) 4123 { 4124 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 4125 4126 lpfc_initialize_node(vport, ndlp, did); 4127 INIT_LIST_HEAD(&ndlp->nlp_listp); 4128 4129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4130 "node init: did:x%x", 4131 ndlp->nlp_DID, 0, 0); 4132 4133 return; 4134 } 4135 4136 /* This routine releases all resources associated with a specifc NPort's ndlp 4137 * and mempool_free's the nodelist. 4138 */ 4139 static void 4140 lpfc_nlp_release(struct kref *kref) 4141 { 4142 struct lpfc_hba *phba; 4143 unsigned long flags; 4144 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 4145 kref); 4146 4147 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4148 "node release: did:x%x flg:x%x type:x%x", 4149 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4150 4151 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4152 "0279 lpfc_nlp_release: ndlp:x%p " 4153 "usgmap:x%x refcnt:%d\n", 4154 (void *)ndlp, ndlp->nlp_usg_map, 4155 atomic_read(&ndlp->kref.refcount)); 4156 4157 /* remove ndlp from action. */ 4158 lpfc_nlp_remove(ndlp->vport, ndlp); 4159 4160 /* clear the ndlp active flag for all release cases */ 4161 phba = ndlp->phba; 4162 spin_lock_irqsave(&phba->ndlp_lock, flags); 4163 NLP_CLR_NODE_ACT(ndlp); 4164 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4165 4166 /* free ndlp memory for final ndlp release */ 4167 if (NLP_CHK_FREE_REQ(ndlp)) { 4168 kfree(ndlp->lat_data); 4169 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 4170 } 4171 } 4172 4173 /* This routine bumps the reference count for a ndlp structure to ensure 4174 * that one discovery thread won't free a ndlp while another discovery thread 4175 * is using it. 4176 */ 4177 struct lpfc_nodelist * 4178 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 4179 { 4180 struct lpfc_hba *phba; 4181 unsigned long flags; 4182 4183 if (ndlp) { 4184 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4185 "node get: did:x%x flg:x%x refcnt:x%x", 4186 ndlp->nlp_DID, ndlp->nlp_flag, 4187 atomic_read(&ndlp->kref.refcount)); 4188 /* The check of ndlp usage to prevent incrementing the 4189 * ndlp reference count that is in the process of being 4190 * released. 4191 */ 4192 phba = ndlp->phba; 4193 spin_lock_irqsave(&phba->ndlp_lock, flags); 4194 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 4195 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4196 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 4197 "0276 lpfc_nlp_get: ndlp:x%p " 4198 "usgmap:x%x refcnt:%d\n", 4199 (void *)ndlp, ndlp->nlp_usg_map, 4200 atomic_read(&ndlp->kref.refcount)); 4201 return NULL; 4202 } else 4203 kref_get(&ndlp->kref); 4204 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4205 } 4206 return ndlp; 4207 } 4208 4209 /* This routine decrements the reference count for a ndlp structure. If the 4210 * count goes to 0, this indicates the the associated nodelist should be 4211 * freed. Returning 1 indicates the ndlp resource has been released; on the 4212 * other hand, returning 0 indicates the ndlp resource has not been released 4213 * yet. 4214 */ 4215 int 4216 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 4217 { 4218 struct lpfc_hba *phba; 4219 unsigned long flags; 4220 4221 if (!ndlp) 4222 return 1; 4223 4224 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4225 "node put: did:x%x flg:x%x refcnt:x%x", 4226 ndlp->nlp_DID, ndlp->nlp_flag, 4227 atomic_read(&ndlp->kref.refcount)); 4228 phba = ndlp->phba; 4229 spin_lock_irqsave(&phba->ndlp_lock, flags); 4230 /* Check the ndlp memory free acknowledge flag to avoid the 4231 * possible race condition that kref_put got invoked again 4232 * after previous one has done ndlp memory free. 4233 */ 4234 if (NLP_CHK_FREE_ACK(ndlp)) { 4235 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4236 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 4237 "0274 lpfc_nlp_put: ndlp:x%p " 4238 "usgmap:x%x refcnt:%d\n", 4239 (void *)ndlp, ndlp->nlp_usg_map, 4240 atomic_read(&ndlp->kref.refcount)); 4241 return 1; 4242 } 4243 /* Check the ndlp inactivate log flag to avoid the possible 4244 * race condition that kref_put got invoked again after ndlp 4245 * is already in inactivating state. 4246 */ 4247 if (NLP_CHK_IACT_REQ(ndlp)) { 4248 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4249 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 4250 "0275 lpfc_nlp_put: ndlp:x%p " 4251 "usgmap:x%x refcnt:%d\n", 4252 (void *)ndlp, ndlp->nlp_usg_map, 4253 atomic_read(&ndlp->kref.refcount)); 4254 return 1; 4255 } 4256 /* For last put, mark the ndlp usage flags to make sure no 4257 * other kref_get and kref_put on the same ndlp shall get 4258 * in between the process when the final kref_put has been 4259 * invoked on this ndlp. 4260 */ 4261 if (atomic_read(&ndlp->kref.refcount) == 1) { 4262 /* Indicate ndlp is put to inactive state. */ 4263 NLP_SET_IACT_REQ(ndlp); 4264 /* Acknowledge ndlp memory free has been seen. */ 4265 if (NLP_CHK_FREE_REQ(ndlp)) 4266 NLP_SET_FREE_ACK(ndlp); 4267 } 4268 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4269 /* Note, the kref_put returns 1 when decrementing a reference 4270 * count that was 1, it invokes the release callback function, 4271 * but it still left the reference count as 1 (not actually 4272 * performs the last decrementation). Otherwise, it actually 4273 * decrements the reference count and returns 0. 4274 */ 4275 return kref_put(&ndlp->kref, lpfc_nlp_release); 4276 } 4277 4278 /* This routine free's the specified nodelist if it is not in use 4279 * by any other discovery thread. This routine returns 1 if the 4280 * ndlp has been freed. A return value of 0 indicates the ndlp is 4281 * not yet been released. 4282 */ 4283 int 4284 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 4285 { 4286 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 4287 "node not used: did:x%x flg:x%x refcnt:x%x", 4288 ndlp->nlp_DID, ndlp->nlp_flag, 4289 atomic_read(&ndlp->kref.refcount)); 4290 if (atomic_read(&ndlp->kref.refcount) == 1) 4291 if (lpfc_nlp_put(ndlp)) 4292 return 1; 4293 return 0; 4294 } 4295 4296 /** 4297 * lpfc_fcf_inuse - Check if FCF can be unregistered. 4298 * @phba: Pointer to hba context object. 4299 * 4300 * This function iterate through all FC nodes associated 4301 * will all vports to check if there is any node with 4302 * fc_rports associated with it. If there is an fc_rport 4303 * associated with the node, then the node is either in 4304 * discovered state or its devloss_timer is pending. 4305 */ 4306 static int 4307 lpfc_fcf_inuse(struct lpfc_hba *phba) 4308 { 4309 struct lpfc_vport **vports; 4310 int i, ret = 0; 4311 struct lpfc_nodelist *ndlp; 4312 struct Scsi_Host *shost; 4313 4314 vports = lpfc_create_vport_work_array(phba); 4315 4316 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4317 shost = lpfc_shost_from_vport(vports[i]); 4318 spin_lock_irq(shost->host_lock); 4319 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4320 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 4321 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 4322 ret = 1; 4323 spin_unlock_irq(shost->host_lock); 4324 goto out; 4325 } 4326 } 4327 spin_unlock_irq(shost->host_lock); 4328 } 4329 out: 4330 lpfc_destroy_vport_work_array(phba, vports); 4331 return ret; 4332 } 4333 4334 /** 4335 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 4336 * @phba: Pointer to hba context object. 4337 * @mboxq: Pointer to mailbox object. 4338 * 4339 * This function frees memory associated with the mailbox command. 4340 */ 4341 static void 4342 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 4343 { 4344 struct lpfc_vport *vport = mboxq->vport; 4345 4346 if (mboxq->u.mb.mbxStatus) { 4347 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4348 "2555 UNREG_VFI mbxStatus error x%x " 4349 "HBA state x%x\n", 4350 mboxq->u.mb.mbxStatus, vport->port_state); 4351 } 4352 mempool_free(mboxq, phba->mbox_mem_pool); 4353 return; 4354 } 4355 4356 /** 4357 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 4358 * @phba: Pointer to hba context object. 4359 * @mboxq: Pointer to mailbox object. 4360 * 4361 * This function frees memory associated with the mailbox command. 4362 */ 4363 static void 4364 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 4365 { 4366 struct lpfc_vport *vport = mboxq->vport; 4367 4368 if (mboxq->u.mb.mbxStatus) { 4369 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4370 "2550 UNREG_FCFI mbxStatus error x%x " 4371 "HBA state x%x\n", 4372 mboxq->u.mb.mbxStatus, vport->port_state); 4373 } 4374 mempool_free(mboxq, phba->mbox_mem_pool); 4375 return; 4376 } 4377 4378 /** 4379 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 4380 * @phba: Pointer to hba context object. 4381 * 4382 * This function check if there are any connected remote port for the FCF and 4383 * if all the devices are disconnected, this function unregister FCFI. 4384 * This function also tries to use another FCF for discovery. 4385 */ 4386 void 4387 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 4388 { 4389 LPFC_MBOXQ_t *mbox; 4390 int rc; 4391 struct lpfc_vport **vports; 4392 int i; 4393 4394 spin_lock_irq(&phba->hbalock); 4395 /* 4396 * If HBA is not running in FIP mode or 4397 * If HBA does not support FCoE or 4398 * If FCF is not registered. 4399 * do nothing. 4400 */ 4401 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) || 4402 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 4403 (phba->cfg_enable_fip == 0)) { 4404 spin_unlock_irq(&phba->hbalock); 4405 return; 4406 } 4407 spin_unlock_irq(&phba->hbalock); 4408 4409 if (lpfc_fcf_inuse(phba)) 4410 return; 4411 4412 4413 /* Unregister VPIs */ 4414 vports = lpfc_create_vport_work_array(phba); 4415 if (vports && 4416 (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 4417 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4418 lpfc_mbx_unreg_vpi(vports[i]); 4419 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 4420 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED; 4421 } 4422 lpfc_destroy_vport_work_array(phba, vports); 4423 4424 /* Unregister VFI */ 4425 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4426 if (!mbox) { 4427 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4428 "2556 UNREG_VFI mbox allocation failed" 4429 "HBA state x%x\n", 4430 phba->pport->port_state); 4431 return; 4432 } 4433 4434 lpfc_unreg_vfi(mbox, phba->pport->vfi); 4435 mbox->vport = phba->pport; 4436 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl; 4437 4438 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4439 if (rc == MBX_NOT_FINISHED) { 4440 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4441 "2557 UNREG_VFI issue mbox failed rc x%x " 4442 "HBA state x%x\n", 4443 rc, phba->pport->port_state); 4444 mempool_free(mbox, phba->mbox_mem_pool); 4445 return; 4446 } 4447 4448 /* Unregister FCF */ 4449 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4450 if (!mbox) { 4451 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4452 "2551 UNREG_FCFI mbox allocation failed" 4453 "HBA state x%x\n", 4454 phba->pport->port_state); 4455 return; 4456 } 4457 4458 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 4459 mbox->vport = phba->pport; 4460 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 4461 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4462 4463 if (rc == MBX_NOT_FINISHED) { 4464 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4465 "2552 UNREG_FCFI issue mbox failed rc x%x " 4466 "HBA state x%x\n", 4467 rc, phba->pport->port_state); 4468 mempool_free(mbox, phba->mbox_mem_pool); 4469 return; 4470 } 4471 4472 spin_lock_irq(&phba->hbalock); 4473 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED | 4474 FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE | 4475 FCF_VALID_VLAN); 4476 spin_unlock_irq(&phba->hbalock); 4477 4478 /* 4479 * If driver is not unloading, check if there is any other 4480 * FCF record that can be used for discovery. 4481 */ 4482 if ((phba->pport->load_flag & FC_UNLOADING) || 4483 (phba->link_state < LPFC_LINK_UP)) 4484 return; 4485 4486 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST); 4487 4488 if (rc) 4489 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 4490 "2553 lpfc_unregister_unused_fcf failed to read FCF" 4491 " record HBA state x%x\n", 4492 phba->pport->port_state); 4493 } 4494 4495 /** 4496 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 4497 * @phba: Pointer to hba context object. 4498 * @buff: Buffer containing the FCF connection table as in the config 4499 * region. 4500 * This function create driver data structure for the FCF connection 4501 * record table read from config region 23. 4502 */ 4503 static void 4504 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 4505 uint8_t *buff) 4506 { 4507 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4508 struct lpfc_fcf_conn_hdr *conn_hdr; 4509 struct lpfc_fcf_conn_rec *conn_rec; 4510 uint32_t record_count; 4511 int i; 4512 4513 /* Free the current connect table */ 4514 list_for_each_entry_safe(conn_entry, next_conn_entry, 4515 &phba->fcf_conn_rec_list, list) 4516 kfree(conn_entry); 4517 4518 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 4519 record_count = conn_hdr->length * sizeof(uint32_t)/ 4520 sizeof(struct lpfc_fcf_conn_rec); 4521 4522 conn_rec = (struct lpfc_fcf_conn_rec *) 4523 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 4524 4525 for (i = 0; i < record_count; i++) { 4526 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 4527 continue; 4528 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 4529 GFP_KERNEL); 4530 if (!conn_entry) { 4531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4532 "2566 Failed to allocate connection" 4533 " table entry\n"); 4534 return; 4535 } 4536 4537 memcpy(&conn_entry->conn_rec, &conn_rec[i], 4538 sizeof(struct lpfc_fcf_conn_rec)); 4539 conn_entry->conn_rec.vlan_tag = 4540 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF; 4541 conn_entry->conn_rec.flags = 4542 le16_to_cpu(conn_entry->conn_rec.flags); 4543 list_add_tail(&conn_entry->list, 4544 &phba->fcf_conn_rec_list); 4545 } 4546 } 4547 4548 /** 4549 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 4550 * @phba: Pointer to hba context object. 4551 * @buff: Buffer containing the FCoE parameter data structure. 4552 * 4553 * This function update driver data structure with config 4554 * parameters read from config region 23. 4555 */ 4556 static void 4557 lpfc_read_fcoe_param(struct lpfc_hba *phba, 4558 uint8_t *buff) 4559 { 4560 struct lpfc_fip_param_hdr *fcoe_param_hdr; 4561 struct lpfc_fcoe_params *fcoe_param; 4562 4563 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 4564 buff; 4565 fcoe_param = (struct lpfc_fcoe_params *) 4566 (buff + sizeof(struct lpfc_fip_param_hdr)); 4567 4568 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 4569 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 4570 return; 4571 4572 if (bf_get(lpfc_fip_param_hdr_fipp_mode, fcoe_param_hdr) == 4573 FIPP_MODE_ON) 4574 phba->cfg_enable_fip = 1; 4575 4576 if (bf_get(lpfc_fip_param_hdr_fipp_mode, fcoe_param_hdr) == 4577 FIPP_MODE_OFF) 4578 phba->cfg_enable_fip = 0; 4579 4580 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 4581 phba->valid_vlan = 1; 4582 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 4583 0xFFF; 4584 } 4585 4586 phba->fc_map[0] = fcoe_param->fc_map[0]; 4587 phba->fc_map[1] = fcoe_param->fc_map[1]; 4588 phba->fc_map[2] = fcoe_param->fc_map[2]; 4589 return; 4590 } 4591 4592 /** 4593 * lpfc_get_rec_conf23 - Get a record type in config region data. 4594 * @buff: Buffer containing config region 23 data. 4595 * @size: Size of the data buffer. 4596 * @rec_type: Record type to be searched. 4597 * 4598 * This function searches config region data to find the begining 4599 * of the record specified by record_type. If record found, this 4600 * function return pointer to the record else return NULL. 4601 */ 4602 static uint8_t * 4603 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 4604 { 4605 uint32_t offset = 0, rec_length; 4606 4607 if ((buff[0] == LPFC_REGION23_LAST_REC) || 4608 (size < sizeof(uint32_t))) 4609 return NULL; 4610 4611 rec_length = buff[offset + 1]; 4612 4613 /* 4614 * One TLV record has one word header and number of data words 4615 * specified in the rec_length field of the record header. 4616 */ 4617 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 4618 <= size) { 4619 if (buff[offset] == rec_type) 4620 return &buff[offset]; 4621 4622 if (buff[offset] == LPFC_REGION23_LAST_REC) 4623 return NULL; 4624 4625 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 4626 rec_length = buff[offset + 1]; 4627 } 4628 return NULL; 4629 } 4630 4631 /** 4632 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 4633 * @phba: Pointer to lpfc_hba data structure. 4634 * @buff: Buffer containing config region 23 data. 4635 * @size: Size of the data buffer. 4636 * 4637 * This fuction parse the FCoE config parameters in config region 23 and 4638 * populate driver data structure with the parameters. 4639 */ 4640 void 4641 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 4642 uint8_t *buff, 4643 uint32_t size) 4644 { 4645 uint32_t offset = 0, rec_length; 4646 uint8_t *rec_ptr; 4647 4648 /* 4649 * If data size is less than 2 words signature and version cannot be 4650 * verified. 4651 */ 4652 if (size < 2*sizeof(uint32_t)) 4653 return; 4654 4655 /* Check the region signature first */ 4656 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 4657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4658 "2567 Config region 23 has bad signature\n"); 4659 return; 4660 } 4661 4662 offset += 4; 4663 4664 /* Check the data structure version */ 4665 if (buff[offset] != LPFC_REGION23_VERSION) { 4666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4667 "2568 Config region 23 has bad version\n"); 4668 return; 4669 } 4670 offset += 4; 4671 4672 rec_length = buff[offset + 1]; 4673 4674 /* Read FCoE param record */ 4675 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 4676 size - offset, FCOE_PARAM_TYPE); 4677 if (rec_ptr) 4678 lpfc_read_fcoe_param(phba, rec_ptr); 4679 4680 /* Read FCF connection table */ 4681 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 4682 size - offset, FCOE_CONN_TBL_TYPE); 4683 if (rec_ptr) 4684 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 4685 4686 } 4687