1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2020 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24#include <linux/blkdev.h> 25#include <linux/delay.h> 26#include <linux/slab.h> 27#include <linux/pci.h> 28#include <linux/kthread.h> 29#include <linux/interrupt.h> 30#include <linux/lockdep.h> 31#include <linux/utsname.h> 32 33#include <scsi/scsi.h> 34#include <scsi/scsi_device.h> 35#include <scsi/scsi_host.h> 36#include <scsi/scsi_transport_fc.h> 37#include <scsi/fc/fc_fs.h> 38 39#include "lpfc_hw4.h" 40#include "lpfc_hw.h" 41#include "lpfc_nl.h" 42#include "lpfc_disc.h" 43#include "lpfc_sli.h" 44#include "lpfc_sli4.h" 45#include "lpfc.h" 46#include "lpfc_scsi.h" 47#include "lpfc_nvme.h" 48#include "lpfc_logmsg.h" 49#include "lpfc_crtn.h" 50#include "lpfc_vport.h" 51#include "lpfc_debugfs.h" 52 53/* AlpaArray for assignment of scsid for scan-down and bind_method */ 54static uint8_t lpfcAlpaArray[] = { 55 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 56 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 57 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 58 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 59 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 60 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 61 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 62 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 63 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 64 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 65 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 66 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 67 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 68}; 69 70static void lpfc_disc_timeout_handler(struct lpfc_vport *); 71static void lpfc_disc_flush_list(struct lpfc_vport *vport); 72static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 73static int lpfc_fcf_inuse(struct lpfc_hba *); 74static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *); 75 76void 77lpfc_terminate_rport_io(struct fc_rport *rport) 78{ 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105} 106 107/* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110void 111lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112{ 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 unsigned long iflags; 122 123 rdata = rport->dd_data; 124 ndlp = rdata->pnode; 125 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 126 return; 127 128 vport = ndlp->vport; 129 phba = vport->phba; 130 131 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 132 "rport devlosscb: sid:x%x did:x%x flg:x%x", 133 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 134 135 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 136 "3181 dev_loss_callbk x%06x, rport x%px flg x%x\n", 137 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 138 139 /* Don't defer this if we are in the process of deleting the vport 140 * or unloading the driver. The unload will cleanup the node 141 * appropriately we just need to cleanup the ndlp rport info here. 142 */ 143 if (vport->load_flag & FC_UNLOADING) { 144 put_node = rdata->pnode != NULL; 145 put_rport = ndlp->rport != NULL; 146 rdata->pnode = NULL; 147 ndlp->rport = NULL; 148 if (put_node) 149 lpfc_nlp_put(ndlp); 150 if (put_rport) 151 put_device(&rport->dev); 152 return; 153 } 154 155 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 156 return; 157 158 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 159 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 160 "6789 rport name %llx != node port name %llx", 161 rport->port_name, 162 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 163 164 evtp = &ndlp->dev_loss_evt; 165 166 if (!list_empty(&evtp->evt_listp)) { 167 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 168 "6790 rport name %llx dev_loss_evt pending", 169 rport->port_name); 170 return; 171 } 172 173 shost = lpfc_shost_from_vport(vport); 174 spin_lock_irqsave(shost->host_lock, iflags); 175 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 176 spin_unlock_irqrestore(shost->host_lock, iflags); 177 178 /* We need to hold the node by incrementing the reference 179 * count until this queued work is done 180 */ 181 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 182 183 spin_lock_irqsave(&phba->hbalock, iflags); 184 if (evtp->evt_arg1) { 185 evtp->evt = LPFC_EVT_DEV_LOSS; 186 list_add_tail(&evtp->evt_listp, &phba->work_list); 187 lpfc_worker_wake_up(phba); 188 } 189 spin_unlock_irqrestore(&phba->hbalock, iflags); 190 191 return; 192} 193 194/** 195 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 196 * @ndlp: Pointer to remote node object. 197 * 198 * This function is called from the worker thread when devloss timeout timer 199 * expires. For SLI4 host, this routine shall return 1 when at lease one 200 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 201 * routine shall return 0 when there is no remote node is still in use of FCF 202 * when devloss timeout happened to this @ndlp. 203 **/ 204static int 205lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 206{ 207 struct lpfc_rport_data *rdata; 208 struct fc_rport *rport; 209 struct lpfc_vport *vport; 210 struct lpfc_hba *phba; 211 struct Scsi_Host *shost; 212 uint8_t *name; 213 int put_node; 214 int warn_on = 0; 215 int fcf_inuse = 0; 216 unsigned long iflags; 217 218 rport = ndlp->rport; 219 vport = ndlp->vport; 220 shost = lpfc_shost_from_vport(vport); 221 222 spin_lock_irqsave(shost->host_lock, iflags); 223 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 224 spin_unlock_irqrestore(shost->host_lock, iflags); 225 226 if (!rport) 227 return fcf_inuse; 228 229 name = (uint8_t *) &ndlp->nlp_portname; 230 phba = vport->phba; 231 232 if (phba->sli_rev == LPFC_SLI_REV4) 233 fcf_inuse = lpfc_fcf_inuse(phba); 234 235 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 236 "rport devlosstmo:did:x%x type:x%x id:x%x", 237 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 238 239 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 240 "3182 dev_loss_tmo_handler x%06x, rport x%px flg x%x\n", 241 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 242 243 /* 244 * lpfc_nlp_remove if reached with dangling rport drops the 245 * reference. To make sure that does not happen clear rport 246 * pointer in ndlp before lpfc_nlp_put. 247 */ 248 rdata = rport->dd_data; 249 250 /* Don't defer this if we are in the process of deleting the vport 251 * or unloading the driver. The unload will cleanup the node 252 * appropriately we just need to cleanup the ndlp rport info here. 253 */ 254 if (vport->load_flag & FC_UNLOADING) { 255 if (ndlp->nlp_sid != NLP_NO_SID) { 256 /* flush the target */ 257 lpfc_sli_abort_iocb(vport, 258 &phba->sli.sli3_ring[LPFC_FCP_RING], 259 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 260 } 261 put_node = rdata->pnode != NULL; 262 rdata->pnode = NULL; 263 ndlp->rport = NULL; 264 if (put_node) 265 lpfc_nlp_put(ndlp); 266 put_device(&rport->dev); 267 268 return fcf_inuse; 269 } 270 271 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 272 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 273 "0284 Devloss timeout Ignored on " 274 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 275 "NPort x%x\n", 276 *name, *(name+1), *(name+2), *(name+3), 277 *(name+4), *(name+5), *(name+6), *(name+7), 278 ndlp->nlp_DID); 279 return fcf_inuse; 280 } 281 282 put_node = rdata->pnode != NULL; 283 rdata->pnode = NULL; 284 ndlp->rport = NULL; 285 if (put_node) 286 lpfc_nlp_put(ndlp); 287 put_device(&rport->dev); 288 289 if (ndlp->nlp_type & NLP_FABRIC) 290 return fcf_inuse; 291 292 if (ndlp->nlp_sid != NLP_NO_SID) { 293 warn_on = 1; 294 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 295 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 296 } 297 298 if (warn_on) { 299 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 300 "0203 Devloss timeout on " 301 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 302 "NPort x%06x Data: x%x x%x x%x\n", 303 *name, *(name+1), *(name+2), *(name+3), 304 *(name+4), *(name+5), *(name+6), *(name+7), 305 ndlp->nlp_DID, ndlp->nlp_flag, 306 ndlp->nlp_state, ndlp->nlp_rpi); 307 } else { 308 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT, 309 "0204 Devloss timeout on " 310 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 311 "NPort x%06x Data: x%x x%x x%x\n", 312 *name, *(name+1), *(name+2), *(name+3), 313 *(name+4), *(name+5), *(name+6), *(name+7), 314 ndlp->nlp_DID, ndlp->nlp_flag, 315 ndlp->nlp_state, ndlp->nlp_rpi); 316 } 317 318 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 319 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 320 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 321 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 322 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 323 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 324 325 return fcf_inuse; 326} 327 328/** 329 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 330 * @phba: Pointer to hba context object. 331 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 332 * @nlp_did: remote node identifer with devloss timeout. 333 * 334 * This function is called from the worker thread after invoking devloss 335 * timeout handler and releasing the reference count for the ndlp with 336 * which the devloss timeout was handled for SLI4 host. For the devloss 337 * timeout of the last remote node which had been in use of FCF, when this 338 * routine is invoked, it shall be guaranteed that none of the remote are 339 * in-use of FCF. When devloss timeout to the last remote using the FCF, 340 * if the FIP engine is neither in FCF table scan process nor roundrobin 341 * failover process, the in-use FCF shall be unregistered. If the FIP 342 * engine is in FCF discovery process, the devloss timeout state shall 343 * be set for either the FCF table scan process or roundrobin failover 344 * process to unregister the in-use FCF. 345 **/ 346static void 347lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 348 uint32_t nlp_did) 349{ 350 /* If devloss timeout happened to a remote node when FCF had no 351 * longer been in-use, do nothing. 352 */ 353 if (!fcf_inuse) 354 return; 355 356 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 357 spin_lock_irq(&phba->hbalock); 358 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 359 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 360 spin_unlock_irq(&phba->hbalock); 361 return; 362 } 363 phba->hba_flag |= HBA_DEVLOSS_TMO; 364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 365 "2847 Last remote node (x%x) using " 366 "FCF devloss tmo\n", nlp_did); 367 } 368 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 369 spin_unlock_irq(&phba->hbalock); 370 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 371 "2868 Devloss tmo to FCF rediscovery " 372 "in progress\n"); 373 return; 374 } 375 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 376 spin_unlock_irq(&phba->hbalock); 377 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 378 "2869 Devloss tmo to idle FIP engine, " 379 "unreg in-use FCF and rescan.\n"); 380 /* Unregister in-use FCF and rescan */ 381 lpfc_unregister_fcf_rescan(phba); 382 return; 383 } 384 spin_unlock_irq(&phba->hbalock); 385 if (phba->hba_flag & FCF_TS_INPROG) 386 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 387 "2870 FCF table scan in progress\n"); 388 if (phba->hba_flag & FCF_RR_INPROG) 389 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 390 "2871 FLOGI roundrobin FCF failover " 391 "in progress\n"); 392 } 393 lpfc_unregister_unused_fcf(phba); 394} 395 396/** 397 * lpfc_alloc_fast_evt - Allocates data structure for posting event 398 * @phba: Pointer to hba context object. 399 * 400 * This function is called from the functions which need to post 401 * events from interrupt context. This function allocates data 402 * structure required for posting event. It also keeps track of 403 * number of events pending and prevent event storm when there are 404 * too many events. 405 **/ 406struct lpfc_fast_path_event * 407lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 408 struct lpfc_fast_path_event *ret; 409 410 /* If there are lot of fast event do not exhaust memory due to this */ 411 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 412 return NULL; 413 414 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 415 GFP_ATOMIC); 416 if (ret) { 417 atomic_inc(&phba->fast_event_count); 418 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 419 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 420 } 421 return ret; 422} 423 424/** 425 * lpfc_free_fast_evt - Frees event data structure 426 * @phba: Pointer to hba context object. 427 * @evt: Event object which need to be freed. 428 * 429 * This function frees the data structure required for posting 430 * events. 431 **/ 432void 433lpfc_free_fast_evt(struct lpfc_hba *phba, 434 struct lpfc_fast_path_event *evt) { 435 436 atomic_dec(&phba->fast_event_count); 437 kfree(evt); 438} 439 440/** 441 * lpfc_send_fastpath_evt - Posts events generated from fast path 442 * @phba: Pointer to hba context object. 443 * @evtp: Event data structure. 444 * 445 * This function is called from worker thread, when the interrupt 446 * context need to post an event. This function posts the event 447 * to fc transport netlink interface. 448 **/ 449static void 450lpfc_send_fastpath_evt(struct lpfc_hba *phba, 451 struct lpfc_work_evt *evtp) 452{ 453 unsigned long evt_category, evt_sub_category; 454 struct lpfc_fast_path_event *fast_evt_data; 455 char *evt_data; 456 uint32_t evt_data_size; 457 struct Scsi_Host *shost; 458 459 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 460 work_evt); 461 462 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 463 evt_sub_category = (unsigned long) fast_evt_data->un. 464 fabric_evt.subcategory; 465 shost = lpfc_shost_from_vport(fast_evt_data->vport); 466 if (evt_category == FC_REG_FABRIC_EVENT) { 467 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 468 evt_data = (char *) &fast_evt_data->un.read_check_error; 469 evt_data_size = sizeof(fast_evt_data->un. 470 read_check_error); 471 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 472 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 473 evt_data = (char *) &fast_evt_data->un.fabric_evt; 474 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 475 } else { 476 lpfc_free_fast_evt(phba, fast_evt_data); 477 return; 478 } 479 } else if (evt_category == FC_REG_SCSI_EVENT) { 480 switch (evt_sub_category) { 481 case LPFC_EVENT_QFULL: 482 case LPFC_EVENT_DEVBSY: 483 evt_data = (char *) &fast_evt_data->un.scsi_evt; 484 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 485 break; 486 case LPFC_EVENT_CHECK_COND: 487 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 488 evt_data_size = sizeof(fast_evt_data->un. 489 check_cond_evt); 490 break; 491 case LPFC_EVENT_VARQUEDEPTH: 492 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 493 evt_data_size = sizeof(fast_evt_data->un. 494 queue_depth_evt); 495 break; 496 default: 497 lpfc_free_fast_evt(phba, fast_evt_data); 498 return; 499 } 500 } else { 501 lpfc_free_fast_evt(phba, fast_evt_data); 502 return; 503 } 504 505 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 506 fc_host_post_vendor_event(shost, 507 fc_get_event_number(), 508 evt_data_size, 509 evt_data, 510 LPFC_NL_VENDOR_ID); 511 512 lpfc_free_fast_evt(phba, fast_evt_data); 513 return; 514} 515 516static void 517lpfc_work_list_done(struct lpfc_hba *phba) 518{ 519 struct lpfc_work_evt *evtp = NULL; 520 struct lpfc_nodelist *ndlp; 521 int free_evt; 522 int fcf_inuse; 523 uint32_t nlp_did; 524 525 spin_lock_irq(&phba->hbalock); 526 while (!list_empty(&phba->work_list)) { 527 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 528 evt_listp); 529 spin_unlock_irq(&phba->hbalock); 530 free_evt = 1; 531 switch (evtp->evt) { 532 case LPFC_EVT_ELS_RETRY: 533 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 534 lpfc_els_retry_delay_handler(ndlp); 535 free_evt = 0; /* evt is part of ndlp */ 536 /* decrement the node reference count held 537 * for this queued work 538 */ 539 lpfc_nlp_put(ndlp); 540 break; 541 case LPFC_EVT_DEV_LOSS: 542 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 543 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 544 free_evt = 0; 545 /* decrement the node reference count held for 546 * this queued work 547 */ 548 nlp_did = ndlp->nlp_DID; 549 lpfc_nlp_put(ndlp); 550 if (phba->sli_rev == LPFC_SLI_REV4) 551 lpfc_sli4_post_dev_loss_tmo_handler(phba, 552 fcf_inuse, 553 nlp_did); 554 break; 555 case LPFC_EVT_RECOVER_PORT: 556 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 557 lpfc_sli_abts_recover_port(ndlp->vport, ndlp); 558 free_evt = 0; 559 /* decrement the node reference count held for 560 * this queued work 561 */ 562 lpfc_nlp_put(ndlp); 563 break; 564 case LPFC_EVT_ONLINE: 565 if (phba->link_state < LPFC_LINK_DOWN) 566 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 567 else 568 *(int *) (evtp->evt_arg1) = 0; 569 complete((struct completion *)(evtp->evt_arg2)); 570 break; 571 case LPFC_EVT_OFFLINE_PREP: 572 if (phba->link_state >= LPFC_LINK_DOWN) 573 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 574 *(int *)(evtp->evt_arg1) = 0; 575 complete((struct completion *)(evtp->evt_arg2)); 576 break; 577 case LPFC_EVT_OFFLINE: 578 lpfc_offline(phba); 579 lpfc_sli_brdrestart(phba); 580 *(int *)(evtp->evt_arg1) = 581 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 582 lpfc_unblock_mgmt_io(phba); 583 complete((struct completion *)(evtp->evt_arg2)); 584 break; 585 case LPFC_EVT_WARM_START: 586 lpfc_offline(phba); 587 lpfc_reset_barrier(phba); 588 lpfc_sli_brdreset(phba); 589 lpfc_hba_down_post(phba); 590 *(int *)(evtp->evt_arg1) = 591 lpfc_sli_brdready(phba, HS_MBRDY); 592 lpfc_unblock_mgmt_io(phba); 593 complete((struct completion *)(evtp->evt_arg2)); 594 break; 595 case LPFC_EVT_KILL: 596 lpfc_offline(phba); 597 *(int *)(evtp->evt_arg1) 598 = (phba->pport->stopped) 599 ? 0 : lpfc_sli_brdkill(phba); 600 lpfc_unblock_mgmt_io(phba); 601 complete((struct completion *)(evtp->evt_arg2)); 602 break; 603 case LPFC_EVT_FASTPATH_MGMT_EVT: 604 lpfc_send_fastpath_evt(phba, evtp); 605 free_evt = 0; 606 break; 607 case LPFC_EVT_RESET_HBA: 608 if (!(phba->pport->load_flag & FC_UNLOADING)) 609 lpfc_reset_hba(phba); 610 break; 611 } 612 if (free_evt) 613 kfree(evtp); 614 spin_lock_irq(&phba->hbalock); 615 } 616 spin_unlock_irq(&phba->hbalock); 617 618} 619 620static void 621lpfc_work_done(struct lpfc_hba *phba) 622{ 623 struct lpfc_sli_ring *pring; 624 uint32_t ha_copy, status, control, work_port_events; 625 struct lpfc_vport **vports; 626 struct lpfc_vport *vport; 627 int i; 628 629 spin_lock_irq(&phba->hbalock); 630 ha_copy = phba->work_ha; 631 phba->work_ha = 0; 632 spin_unlock_irq(&phba->hbalock); 633 634 /* First, try to post the next mailbox command to SLI4 device */ 635 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 636 lpfc_sli4_post_async_mbox(phba); 637 638 if (ha_copy & HA_ERATT) { 639 /* Handle the error attention event */ 640 lpfc_handle_eratt(phba); 641 642 if (phba->fw_dump_cmpl) { 643 complete(phba->fw_dump_cmpl); 644 phba->fw_dump_cmpl = NULL; 645 } 646 } 647 648 if (ha_copy & HA_MBATT) 649 lpfc_sli_handle_mb_event(phba); 650 651 if (ha_copy & HA_LATT) 652 lpfc_handle_latt(phba); 653 654 /* Process SLI4 events */ 655 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 656 if (phba->hba_flag & HBA_RRQ_ACTIVE) 657 lpfc_handle_rrq_active(phba); 658 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 659 lpfc_sli4_els_xri_abort_event_proc(phba); 660 if (phba->hba_flag & ASYNC_EVENT) 661 lpfc_sli4_async_event_proc(phba); 662 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 663 spin_lock_irq(&phba->hbalock); 664 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 665 spin_unlock_irq(&phba->hbalock); 666 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 667 } 668 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 669 lpfc_sli4_fcf_redisc_event_proc(phba); 670 } 671 672 vports = lpfc_create_vport_work_array(phba); 673 if (vports != NULL) 674 for (i = 0; i <= phba->max_vports; i++) { 675 /* 676 * We could have no vports in array if unloading, so if 677 * this happens then just use the pport 678 */ 679 if (vports[i] == NULL && i == 0) 680 vport = phba->pport; 681 else 682 vport = vports[i]; 683 if (vport == NULL) 684 break; 685 spin_lock_irq(&vport->work_port_lock); 686 work_port_events = vport->work_port_events; 687 vport->work_port_events &= ~work_port_events; 688 spin_unlock_irq(&vport->work_port_lock); 689 if (work_port_events & WORKER_DISC_TMO) 690 lpfc_disc_timeout_handler(vport); 691 if (work_port_events & WORKER_ELS_TMO) 692 lpfc_els_timeout_handler(vport); 693 if (work_port_events & WORKER_HB_TMO) 694 lpfc_hb_timeout_handler(phba); 695 if (work_port_events & WORKER_MBOX_TMO) 696 lpfc_mbox_timeout_handler(phba); 697 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 698 lpfc_unblock_fabric_iocbs(phba); 699 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 700 lpfc_ramp_down_queue_handler(phba); 701 if (work_port_events & WORKER_DELAYED_DISC_TMO) 702 lpfc_delayed_disc_timeout_handler(vport); 703 } 704 lpfc_destroy_vport_work_array(phba, vports); 705 706 pring = lpfc_phba_elsring(phba); 707 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 708 status >>= (4*LPFC_ELS_RING); 709 if (pring && (status & HA_RXMASK || 710 pring->flag & LPFC_DEFERRED_RING_EVENT || 711 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 712 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 713 pring->flag |= LPFC_DEFERRED_RING_EVENT; 714 /* Preserve legacy behavior. */ 715 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 716 set_bit(LPFC_DATA_READY, &phba->data_flags); 717 } else { 718 /* Driver could have abort request completed in queue 719 * when link goes down. Allow for this transition. 720 */ 721 if (phba->link_state >= LPFC_LINK_DOWN || 722 phba->link_flag & LS_MDS_LOOPBACK) { 723 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 724 lpfc_sli_handle_slow_ring_event(phba, pring, 725 (status & 726 HA_RXMASK)); 727 } 728 } 729 if (phba->sli_rev == LPFC_SLI_REV4) 730 lpfc_drain_txq(phba); 731 /* 732 * Turn on Ring interrupts 733 */ 734 if (phba->sli_rev <= LPFC_SLI_REV3) { 735 spin_lock_irq(&phba->hbalock); 736 control = readl(phba->HCregaddr); 737 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 738 lpfc_debugfs_slow_ring_trc(phba, 739 "WRK Enable ring: cntl:x%x hacopy:x%x", 740 control, ha_copy, 0); 741 742 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 743 writel(control, phba->HCregaddr); 744 readl(phba->HCregaddr); /* flush */ 745 } else { 746 lpfc_debugfs_slow_ring_trc(phba, 747 "WRK Ring ok: cntl:x%x hacopy:x%x", 748 control, ha_copy, 0); 749 } 750 spin_unlock_irq(&phba->hbalock); 751 } 752 } 753 lpfc_work_list_done(phba); 754} 755 756int 757lpfc_do_work(void *p) 758{ 759 struct lpfc_hba *phba = p; 760 int rc; 761 762 set_user_nice(current, MIN_NICE); 763 current->flags |= PF_NOFREEZE; 764 phba->data_flags = 0; 765 766 while (!kthread_should_stop()) { 767 /* wait and check worker queue activities */ 768 rc = wait_event_interruptible(phba->work_waitq, 769 (test_and_clear_bit(LPFC_DATA_READY, 770 &phba->data_flags) 771 || kthread_should_stop())); 772 /* Signal wakeup shall terminate the worker thread */ 773 if (rc) { 774 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 775 "0433 Wakeup on signal: rc=x%x\n", rc); 776 break; 777 } 778 779 /* Attend pending lpfc data processing */ 780 lpfc_work_done(phba); 781 } 782 phba->worker_thread = NULL; 783 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 784 "0432 Worker thread stopped.\n"); 785 return 0; 786} 787 788/* 789 * This is only called to handle FC worker events. Since this a rare 790 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 791 * embedding it in the IOCB. 792 */ 793int 794lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 795 uint32_t evt) 796{ 797 struct lpfc_work_evt *evtp; 798 unsigned long flags; 799 800 /* 801 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 802 * be queued to worker thread for processing 803 */ 804 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 805 if (!evtp) 806 return 0; 807 808 evtp->evt_arg1 = arg1; 809 evtp->evt_arg2 = arg2; 810 evtp->evt = evt; 811 812 spin_lock_irqsave(&phba->hbalock, flags); 813 list_add_tail(&evtp->evt_listp, &phba->work_list); 814 spin_unlock_irqrestore(&phba->hbalock, flags); 815 816 lpfc_worker_wake_up(phba); 817 818 return 1; 819} 820 821void 822lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 823{ 824 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 825 struct lpfc_hba *phba = vport->phba; 826 struct lpfc_nodelist *ndlp, *next_ndlp; 827 828 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 829 if (!NLP_CHK_NODE_ACT(ndlp)) 830 continue; 831 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 832 continue; 833 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 834 ((vport->port_type == LPFC_NPIV_PORT) && 835 (ndlp->nlp_DID == NameServer_DID))) 836 lpfc_unreg_rpi(vport, ndlp); 837 838 /* Leave Fabric nodes alone on link down */ 839 if ((phba->sli_rev < LPFC_SLI_REV4) && 840 (!remove && ndlp->nlp_type & NLP_FABRIC)) 841 continue; 842 843 /* Notify transport of connectivity loss to trigger cleanup. */ 844 if (phba->nvmet_support && 845 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 846 lpfc_nvmet_invalidate_host(phba, ndlp); 847 848 lpfc_disc_state_machine(vport, ndlp, NULL, 849 remove 850 ? NLP_EVT_DEVICE_RM 851 : NLP_EVT_DEVICE_RECOVERY); 852 } 853 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 854 if (phba->sli_rev == LPFC_SLI_REV4) 855 lpfc_sli4_unreg_all_rpis(vport); 856 lpfc_mbx_unreg_vpi(vport); 857 spin_lock_irq(shost->host_lock); 858 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 859 spin_unlock_irq(shost->host_lock); 860 } 861} 862 863void 864lpfc_port_link_failure(struct lpfc_vport *vport) 865{ 866 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 867 868 /* Cleanup any outstanding received buffers */ 869 lpfc_cleanup_rcv_buffers(vport); 870 871 /* Cleanup any outstanding RSCN activity */ 872 lpfc_els_flush_rscn(vport); 873 874 /* Cleanup any outstanding ELS commands */ 875 lpfc_els_flush_cmd(vport); 876 877 lpfc_cleanup_rpis(vport, 0); 878 879 /* Turn off discovery timer if its running */ 880 lpfc_can_disctmo(vport); 881} 882 883void 884lpfc_linkdown_port(struct lpfc_vport *vport) 885{ 886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 887 888 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 889 fc_host_post_event(shost, fc_get_event_number(), 890 FCH_EVT_LINKDOWN, 0); 891 892 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 893 "Link Down: state:x%x rtry:x%x flg:x%x", 894 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 895 896 lpfc_port_link_failure(vport); 897 898 /* Stop delayed Nport discovery */ 899 spin_lock_irq(shost->host_lock); 900 vport->fc_flag &= ~FC_DISC_DELAYED; 901 spin_unlock_irq(shost->host_lock); 902 del_timer_sync(&vport->delayed_disc_tmo); 903} 904 905int 906lpfc_linkdown(struct lpfc_hba *phba) 907{ 908 struct lpfc_vport *vport = phba->pport; 909 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 910 struct lpfc_vport **vports; 911 LPFC_MBOXQ_t *mb; 912 int i; 913 914 if (phba->link_state == LPFC_LINK_DOWN) 915 return 0; 916 917 /* Block all SCSI stack I/Os */ 918 lpfc_scsi_dev_block(phba); 919 920 phba->defer_flogi_acc_flag = false; 921 922 spin_lock_irq(&phba->hbalock); 923 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 924 spin_unlock_irq(&phba->hbalock); 925 if (phba->link_state > LPFC_LINK_DOWN) { 926 phba->link_state = LPFC_LINK_DOWN; 927 if (phba->sli4_hba.conf_trunk) { 928 phba->trunk_link.link0.state = 0; 929 phba->trunk_link.link1.state = 0; 930 phba->trunk_link.link2.state = 0; 931 phba->trunk_link.link3.state = 0; 932 phba->sli4_hba.link_state.logical_speed = 933 LPFC_LINK_SPEED_UNKNOWN; 934 } 935 spin_lock_irq(shost->host_lock); 936 phba->pport->fc_flag &= ~FC_LBIT; 937 spin_unlock_irq(shost->host_lock); 938 } 939 vports = lpfc_create_vport_work_array(phba); 940 if (vports != NULL) { 941 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 942 /* Issue a LINK DOWN event to all nodes */ 943 lpfc_linkdown_port(vports[i]); 944 945 vports[i]->fc_myDID = 0; 946 947 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 948 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 949 if (phba->nvmet_support) 950 lpfc_nvmet_update_targetport(phba); 951 else 952 lpfc_nvme_update_localport(vports[i]); 953 } 954 } 955 } 956 lpfc_destroy_vport_work_array(phba, vports); 957 958 /* Clean up any SLI3 firmware default rpi's */ 959 if (phba->sli_rev > LPFC_SLI_REV3) 960 goto skip_unreg_did; 961 962 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 963 if (mb) { 964 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 965 mb->vport = vport; 966 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 967 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 968 == MBX_NOT_FINISHED) { 969 mempool_free(mb, phba->mbox_mem_pool); 970 } 971 } 972 973 skip_unreg_did: 974 /* Setup myDID for link up if we are in pt2pt mode */ 975 if (phba->pport->fc_flag & FC_PT2PT) { 976 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 977 if (mb) { 978 lpfc_config_link(phba, mb); 979 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 980 mb->vport = vport; 981 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 982 == MBX_NOT_FINISHED) { 983 mempool_free(mb, phba->mbox_mem_pool); 984 } 985 } 986 spin_lock_irq(shost->host_lock); 987 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 988 phba->pport->rcv_flogi_cnt = 0; 989 spin_unlock_irq(shost->host_lock); 990 } 991 return 0; 992} 993 994static void 995lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 996{ 997 struct lpfc_nodelist *ndlp; 998 999 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 1000 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 1001 if (!NLP_CHK_NODE_ACT(ndlp)) 1002 continue; 1003 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1004 continue; 1005 if (ndlp->nlp_type & NLP_FABRIC) { 1006 /* On Linkup its safe to clean up the ndlp 1007 * from Fabric connections. 1008 */ 1009 if (ndlp->nlp_DID != Fabric_DID) 1010 lpfc_unreg_rpi(vport, ndlp); 1011 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1012 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 1013 /* Fail outstanding IO now since device is 1014 * marked for PLOGI. 1015 */ 1016 lpfc_unreg_rpi(vport, ndlp); 1017 } 1018 } 1019} 1020 1021static void 1022lpfc_linkup_port(struct lpfc_vport *vport) 1023{ 1024 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1025 struct lpfc_hba *phba = vport->phba; 1026 1027 if ((vport->load_flag & FC_UNLOADING) != 0) 1028 return; 1029 1030 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1031 "Link Up: top:x%x speed:x%x flg:x%x", 1032 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1033 1034 /* If NPIV is not enabled, only bring the physical port up */ 1035 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1036 (vport != phba->pport)) 1037 return; 1038 1039 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1040 fc_host_post_event(shost, fc_get_event_number(), 1041 FCH_EVT_LINKUP, 0); 1042 1043 spin_lock_irq(shost->host_lock); 1044 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1045 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1046 vport->fc_flag |= FC_NDISC_ACTIVE; 1047 vport->fc_ns_retry = 0; 1048 spin_unlock_irq(shost->host_lock); 1049 1050 if (vport->fc_flag & FC_LBIT) 1051 lpfc_linkup_cleanup_nodes(vport); 1052 1053} 1054 1055static int 1056lpfc_linkup(struct lpfc_hba *phba) 1057{ 1058 struct lpfc_vport **vports; 1059 int i; 1060 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1061 1062 phba->link_state = LPFC_LINK_UP; 1063 1064 /* Unblock fabric iocbs if they are blocked */ 1065 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1066 del_timer_sync(&phba->fabric_block_timer); 1067 1068 vports = lpfc_create_vport_work_array(phba); 1069 if (vports != NULL) 1070 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1071 lpfc_linkup_port(vports[i]); 1072 lpfc_destroy_vport_work_array(phba, vports); 1073 1074 /* Clear the pport flogi counter in case the link down was 1075 * absorbed without an ACQE. No lock here - in worker thread 1076 * and discovery is synchronized. 1077 */ 1078 spin_lock_irq(shost->host_lock); 1079 phba->pport->rcv_flogi_cnt = 0; 1080 spin_unlock_irq(shost->host_lock); 1081 1082 /* reinitialize initial FLOGI flag */ 1083 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1084 phba->defer_flogi_acc_flag = false; 1085 1086 return 0; 1087} 1088 1089/* 1090 * This routine handles processing a CLEAR_LA mailbox 1091 * command upon completion. It is setup in the LPFC_MBOXQ 1092 * as the completion routine when the command is 1093 * handed off to the SLI layer. SLI3 only. 1094 */ 1095static void 1096lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1097{ 1098 struct lpfc_vport *vport = pmb->vport; 1099 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1100 struct lpfc_sli *psli = &phba->sli; 1101 MAILBOX_t *mb = &pmb->u.mb; 1102 uint32_t control; 1103 1104 /* Since we don't do discovery right now, turn these off here */ 1105 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1106 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1107 1108 /* Check for error */ 1109 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1110 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1111 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1112 "0320 CLEAR_LA mbxStatus error x%x hba " 1113 "state x%x\n", 1114 mb->mbxStatus, vport->port_state); 1115 phba->link_state = LPFC_HBA_ERROR; 1116 goto out; 1117 } 1118 1119 if (vport->port_type == LPFC_PHYSICAL_PORT) 1120 phba->link_state = LPFC_HBA_READY; 1121 1122 spin_lock_irq(&phba->hbalock); 1123 psli->sli_flag |= LPFC_PROCESS_LA; 1124 control = readl(phba->HCregaddr); 1125 control |= HC_LAINT_ENA; 1126 writel(control, phba->HCregaddr); 1127 readl(phba->HCregaddr); /* flush */ 1128 spin_unlock_irq(&phba->hbalock); 1129 mempool_free(pmb, phba->mbox_mem_pool); 1130 return; 1131 1132out: 1133 /* Device Discovery completes */ 1134 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1135 "0225 Device Discovery completes\n"); 1136 mempool_free(pmb, phba->mbox_mem_pool); 1137 1138 spin_lock_irq(shost->host_lock); 1139 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1140 spin_unlock_irq(shost->host_lock); 1141 1142 lpfc_can_disctmo(vport); 1143 1144 /* turn on Link Attention interrupts */ 1145 1146 spin_lock_irq(&phba->hbalock); 1147 psli->sli_flag |= LPFC_PROCESS_LA; 1148 control = readl(phba->HCregaddr); 1149 control |= HC_LAINT_ENA; 1150 writel(control, phba->HCregaddr); 1151 readl(phba->HCregaddr); /* flush */ 1152 spin_unlock_irq(&phba->hbalock); 1153 1154 return; 1155} 1156 1157void 1158lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1159{ 1160 struct lpfc_vport *vport = pmb->vport; 1161 LPFC_MBOXQ_t *sparam_mb; 1162 struct lpfc_dmabuf *sparam_mp; 1163 u16 status = pmb->u.mb.mbxStatus; 1164 int rc; 1165 1166 mempool_free(pmb, phba->mbox_mem_pool); 1167 1168 if (status) 1169 goto out; 1170 1171 /* don't perform discovery for SLI4 loopback diagnostic test */ 1172 if ((phba->sli_rev == LPFC_SLI_REV4) && 1173 !(phba->hba_flag & HBA_FCOE_MODE) && 1174 (phba->link_flag & LS_LOOPBACK_MODE)) 1175 return; 1176 1177 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1178 vport->fc_flag & FC_PUBLIC_LOOP && 1179 !(vport->fc_flag & FC_LBIT)) { 1180 /* Need to wait for FAN - use discovery timer 1181 * for timeout. port_state is identically 1182 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1183 */ 1184 lpfc_set_disctmo(vport); 1185 return; 1186 } 1187 1188 /* Start discovery by sending a FLOGI. port_state is identically 1189 * LPFC_FLOGI while waiting for FLOGI cmpl. 1190 */ 1191 if (vport->port_state != LPFC_FLOGI) { 1192 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if 1193 * bb-credit recovery is in place. 1194 */ 1195 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 1196 !(phba->link_flag & LS_LOOPBACK_MODE)) { 1197 sparam_mb = mempool_alloc(phba->mbox_mem_pool, 1198 GFP_KERNEL); 1199 if (!sparam_mb) 1200 goto sparam_out; 1201 1202 rc = lpfc_read_sparam(phba, sparam_mb, 0); 1203 if (rc) { 1204 mempool_free(sparam_mb, phba->mbox_mem_pool); 1205 goto sparam_out; 1206 } 1207 sparam_mb->vport = vport; 1208 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1209 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT); 1210 if (rc == MBX_NOT_FINISHED) { 1211 sparam_mp = (struct lpfc_dmabuf *) 1212 sparam_mb->ctx_buf; 1213 lpfc_mbuf_free(phba, sparam_mp->virt, 1214 sparam_mp->phys); 1215 kfree(sparam_mp); 1216 sparam_mb->ctx_buf = NULL; 1217 mempool_free(sparam_mb, phba->mbox_mem_pool); 1218 goto sparam_out; 1219 } 1220 1221 phba->hba_flag |= HBA_DEFER_FLOGI; 1222 } else { 1223 lpfc_initial_flogi(vport); 1224 } 1225 } else { 1226 if (vport->fc_flag & FC_PT2PT) 1227 lpfc_disc_start(vport); 1228 } 1229 return; 1230 1231out: 1232 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1233 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", 1234 status, vport->port_state); 1235 1236sparam_out: 1237 lpfc_linkdown(phba); 1238 1239 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1240 "0200 CONFIG_LINK bad hba state x%x\n", 1241 vport->port_state); 1242 1243 lpfc_issue_clear_la(phba, vport); 1244 return; 1245} 1246 1247/** 1248 * lpfc_sli4_clear_fcf_rr_bmask 1249 * @phba: pointer to the struct lpfc_hba for this port. 1250 * This fucnction resets the round robin bit mask and clears the 1251 * fcf priority list. The list deletions are done while holding the 1252 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1253 * from the lpfc_fcf_pri record. 1254 **/ 1255void 1256lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1257{ 1258 struct lpfc_fcf_pri *fcf_pri; 1259 struct lpfc_fcf_pri *next_fcf_pri; 1260 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1261 spin_lock_irq(&phba->hbalock); 1262 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1263 &phba->fcf.fcf_pri_list, list) { 1264 list_del_init(&fcf_pri->list); 1265 fcf_pri->fcf_rec.flag = 0; 1266 } 1267 spin_unlock_irq(&phba->hbalock); 1268} 1269static void 1270lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1271{ 1272 struct lpfc_vport *vport = mboxq->vport; 1273 1274 if (mboxq->u.mb.mbxStatus) { 1275 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1276 "2017 REG_FCFI mbxStatus error x%x " 1277 "HBA state x%x\n", mboxq->u.mb.mbxStatus, 1278 vport->port_state); 1279 goto fail_out; 1280 } 1281 1282 /* Start FCoE discovery by sending a FLOGI. */ 1283 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1284 /* Set the FCFI registered flag */ 1285 spin_lock_irq(&phba->hbalock); 1286 phba->fcf.fcf_flag |= FCF_REGISTERED; 1287 spin_unlock_irq(&phba->hbalock); 1288 1289 /* If there is a pending FCoE event, restart FCF table scan. */ 1290 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1291 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1292 goto fail_out; 1293 1294 /* Mark successful completion of FCF table scan */ 1295 spin_lock_irq(&phba->hbalock); 1296 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1297 phba->hba_flag &= ~FCF_TS_INPROG; 1298 if (vport->port_state != LPFC_FLOGI) { 1299 phba->hba_flag |= FCF_RR_INPROG; 1300 spin_unlock_irq(&phba->hbalock); 1301 lpfc_issue_init_vfi(vport); 1302 goto out; 1303 } 1304 spin_unlock_irq(&phba->hbalock); 1305 goto out; 1306 1307fail_out: 1308 spin_lock_irq(&phba->hbalock); 1309 phba->hba_flag &= ~FCF_RR_INPROG; 1310 spin_unlock_irq(&phba->hbalock); 1311out: 1312 mempool_free(mboxq, phba->mbox_mem_pool); 1313} 1314 1315/** 1316 * lpfc_fab_name_match - Check if the fcf fabric name match. 1317 * @fab_name: pointer to fabric name. 1318 * @new_fcf_record: pointer to fcf record. 1319 * 1320 * This routine compare the fcf record's fabric name with provided 1321 * fabric name. If the fabric name are identical this function 1322 * returns 1 else return 0. 1323 **/ 1324static uint32_t 1325lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1326{ 1327 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1328 return 0; 1329 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1330 return 0; 1331 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1332 return 0; 1333 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1334 return 0; 1335 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1336 return 0; 1337 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1338 return 0; 1339 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1340 return 0; 1341 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1342 return 0; 1343 return 1; 1344} 1345 1346/** 1347 * lpfc_sw_name_match - Check if the fcf switch name match. 1348 * @sw_name: pointer to switch name. 1349 * @new_fcf_record: pointer to fcf record. 1350 * 1351 * This routine compare the fcf record's switch name with provided 1352 * switch name. If the switch name are identical this function 1353 * returns 1 else return 0. 1354 **/ 1355static uint32_t 1356lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1357{ 1358 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1359 return 0; 1360 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1361 return 0; 1362 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1363 return 0; 1364 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1365 return 0; 1366 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1367 return 0; 1368 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1369 return 0; 1370 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1371 return 0; 1372 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1373 return 0; 1374 return 1; 1375} 1376 1377/** 1378 * lpfc_mac_addr_match - Check if the fcf mac address match. 1379 * @mac_addr: pointer to mac address. 1380 * @new_fcf_record: pointer to fcf record. 1381 * 1382 * This routine compare the fcf record's mac address with HBA's 1383 * FCF mac address. If the mac addresses are identical this function 1384 * returns 1 else return 0. 1385 **/ 1386static uint32_t 1387lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1388{ 1389 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1390 return 0; 1391 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1392 return 0; 1393 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1394 return 0; 1395 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1396 return 0; 1397 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1398 return 0; 1399 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1400 return 0; 1401 return 1; 1402} 1403 1404static bool 1405lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1406{ 1407 return (curr_vlan_id == new_vlan_id); 1408} 1409 1410/** 1411 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1412 * @phba: pointer to lpfc hba data structure. 1413 * @fcf_index: Index for the lpfc_fcf_record. 1414 * @new_fcf_record: pointer to hba fcf record. 1415 * 1416 * This routine updates the driver FCF priority record from the new HBA FCF 1417 * record. The hbalock is asserted held in the code path calling this 1418 * routine. 1419 **/ 1420static void 1421__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1422 struct fcf_record *new_fcf_record 1423 ) 1424{ 1425 struct lpfc_fcf_pri *fcf_pri; 1426 1427 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1428 fcf_pri->fcf_rec.fcf_index = fcf_index; 1429 /* FCF record priority */ 1430 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1431 1432} 1433 1434/** 1435 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1436 * @fcf_rec: pointer to driver fcf record. 1437 * @new_fcf_record: pointer to fcf record. 1438 * 1439 * This routine copies the FCF information from the FCF 1440 * record to lpfc_hba data structure. 1441 **/ 1442static void 1443lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1444 struct fcf_record *new_fcf_record) 1445{ 1446 /* Fabric name */ 1447 fcf_rec->fabric_name[0] = 1448 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1449 fcf_rec->fabric_name[1] = 1450 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1451 fcf_rec->fabric_name[2] = 1452 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1453 fcf_rec->fabric_name[3] = 1454 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1455 fcf_rec->fabric_name[4] = 1456 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1457 fcf_rec->fabric_name[5] = 1458 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1459 fcf_rec->fabric_name[6] = 1460 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1461 fcf_rec->fabric_name[7] = 1462 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1463 /* Mac address */ 1464 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1465 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1466 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1467 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1468 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1469 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1470 /* FCF record index */ 1471 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1472 /* FCF record priority */ 1473 fcf_rec->priority = new_fcf_record->fip_priority; 1474 /* Switch name */ 1475 fcf_rec->switch_name[0] = 1476 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1477 fcf_rec->switch_name[1] = 1478 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1479 fcf_rec->switch_name[2] = 1480 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1481 fcf_rec->switch_name[3] = 1482 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1483 fcf_rec->switch_name[4] = 1484 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1485 fcf_rec->switch_name[5] = 1486 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1487 fcf_rec->switch_name[6] = 1488 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1489 fcf_rec->switch_name[7] = 1490 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1491} 1492 1493/** 1494 * lpfc_update_fcf_record - Update driver fcf record 1495 * @phba: pointer to lpfc hba data structure. 1496 * @fcf_rec: pointer to driver fcf record. 1497 * @new_fcf_record: pointer to hba fcf record. 1498 * @addr_mode: address mode to be set to the driver fcf record. 1499 * @vlan_id: vlan tag to be set to the driver fcf record. 1500 * @flag: flag bits to be set to the driver fcf record. 1501 * 1502 * This routine updates the driver FCF record from the new HBA FCF record 1503 * together with the address mode, vlan_id, and other informations. This 1504 * routine is called with the hbalock held. 1505 **/ 1506static void 1507__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1508 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1509 uint16_t vlan_id, uint32_t flag) 1510{ 1511 lockdep_assert_held(&phba->hbalock); 1512 1513 /* Copy the fields from the HBA's FCF record */ 1514 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1515 /* Update other fields of driver FCF record */ 1516 fcf_rec->addr_mode = addr_mode; 1517 fcf_rec->vlan_id = vlan_id; 1518 fcf_rec->flag |= (flag | RECORD_VALID); 1519 __lpfc_update_fcf_record_pri(phba, 1520 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1521 new_fcf_record); 1522} 1523 1524/** 1525 * lpfc_register_fcf - Register the FCF with hba. 1526 * @phba: pointer to lpfc hba data structure. 1527 * 1528 * This routine issues a register fcfi mailbox command to register 1529 * the fcf with HBA. 1530 **/ 1531static void 1532lpfc_register_fcf(struct lpfc_hba *phba) 1533{ 1534 LPFC_MBOXQ_t *fcf_mbxq; 1535 int rc; 1536 1537 spin_lock_irq(&phba->hbalock); 1538 /* If the FCF is not available do nothing. */ 1539 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1540 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1541 spin_unlock_irq(&phba->hbalock); 1542 return; 1543 } 1544 1545 /* The FCF is already registered, start discovery */ 1546 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1547 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1548 phba->hba_flag &= ~FCF_TS_INPROG; 1549 if (phba->pport->port_state != LPFC_FLOGI && 1550 phba->pport->fc_flag & FC_FABRIC) { 1551 phba->hba_flag |= FCF_RR_INPROG; 1552 spin_unlock_irq(&phba->hbalock); 1553 lpfc_initial_flogi(phba->pport); 1554 return; 1555 } 1556 spin_unlock_irq(&phba->hbalock); 1557 return; 1558 } 1559 spin_unlock_irq(&phba->hbalock); 1560 1561 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1562 if (!fcf_mbxq) { 1563 spin_lock_irq(&phba->hbalock); 1564 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1565 spin_unlock_irq(&phba->hbalock); 1566 return; 1567 } 1568 1569 lpfc_reg_fcfi(phba, fcf_mbxq); 1570 fcf_mbxq->vport = phba->pport; 1571 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1572 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1573 if (rc == MBX_NOT_FINISHED) { 1574 spin_lock_irq(&phba->hbalock); 1575 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1576 spin_unlock_irq(&phba->hbalock); 1577 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1578 } 1579 1580 return; 1581} 1582 1583/** 1584 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1585 * @phba: pointer to lpfc hba data structure. 1586 * @new_fcf_record: pointer to fcf record. 1587 * @boot_flag: Indicates if this record used by boot bios. 1588 * @addr_mode: The address mode to be used by this FCF 1589 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1590 * 1591 * This routine compare the fcf record with connect list obtained from the 1592 * config region to decide if this FCF can be used for SAN discovery. It returns 1593 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1594 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1595 * is used by boot bios and addr_mode will indicate the addressing mode to be 1596 * used for this FCF when the function returns. 1597 * If the FCF record need to be used with a particular vlan id, the vlan is 1598 * set in the vlan_id on return of the function. If not VLAN tagging need to 1599 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1600 **/ 1601static int 1602lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1603 struct fcf_record *new_fcf_record, 1604 uint32_t *boot_flag, uint32_t *addr_mode, 1605 uint16_t *vlan_id) 1606{ 1607 struct lpfc_fcf_conn_entry *conn_entry; 1608 int i, j, fcf_vlan_id = 0; 1609 1610 /* Find the lowest VLAN id in the FCF record */ 1611 for (i = 0; i < 512; i++) { 1612 if (new_fcf_record->vlan_bitmap[i]) { 1613 fcf_vlan_id = i * 8; 1614 j = 0; 1615 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1616 j++; 1617 fcf_vlan_id++; 1618 } 1619 break; 1620 } 1621 } 1622 1623 /* FCF not valid/available or solicitation in progress */ 1624 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1625 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1626 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1627 return 0; 1628 1629 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1630 *boot_flag = 0; 1631 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1632 new_fcf_record); 1633 if (phba->valid_vlan) 1634 *vlan_id = phba->vlan_id; 1635 else 1636 *vlan_id = LPFC_FCOE_NULL_VID; 1637 return 1; 1638 } 1639 1640 /* 1641 * If there are no FCF connection table entry, driver connect to all 1642 * FCFs. 1643 */ 1644 if (list_empty(&phba->fcf_conn_rec_list)) { 1645 *boot_flag = 0; 1646 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1647 new_fcf_record); 1648 1649 /* 1650 * When there are no FCF connect entries, use driver's default 1651 * addressing mode - FPMA. 1652 */ 1653 if (*addr_mode & LPFC_FCF_FPMA) 1654 *addr_mode = LPFC_FCF_FPMA; 1655 1656 /* If FCF record report a vlan id use that vlan id */ 1657 if (fcf_vlan_id) 1658 *vlan_id = fcf_vlan_id; 1659 else 1660 *vlan_id = LPFC_FCOE_NULL_VID; 1661 return 1; 1662 } 1663 1664 list_for_each_entry(conn_entry, 1665 &phba->fcf_conn_rec_list, list) { 1666 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1667 continue; 1668 1669 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1670 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1671 new_fcf_record)) 1672 continue; 1673 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1674 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1675 new_fcf_record)) 1676 continue; 1677 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1678 /* 1679 * If the vlan bit map does not have the bit set for the 1680 * vlan id to be used, then it is not a match. 1681 */ 1682 if (!(new_fcf_record->vlan_bitmap 1683 [conn_entry->conn_rec.vlan_tag / 8] & 1684 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1685 continue; 1686 } 1687 1688 /* 1689 * If connection record does not support any addressing mode, 1690 * skip the FCF record. 1691 */ 1692 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1693 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1694 continue; 1695 1696 /* 1697 * Check if the connection record specifies a required 1698 * addressing mode. 1699 */ 1700 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1701 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1702 1703 /* 1704 * If SPMA required but FCF not support this continue. 1705 */ 1706 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1707 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1708 new_fcf_record) & LPFC_FCF_SPMA)) 1709 continue; 1710 1711 /* 1712 * If FPMA required but FCF not support this continue. 1713 */ 1714 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1715 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1716 new_fcf_record) & LPFC_FCF_FPMA)) 1717 continue; 1718 } 1719 1720 /* 1721 * This fcf record matches filtering criteria. 1722 */ 1723 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1724 *boot_flag = 1; 1725 else 1726 *boot_flag = 0; 1727 1728 /* 1729 * If user did not specify any addressing mode, or if the 1730 * preferred addressing mode specified by user is not supported 1731 * by FCF, allow fabric to pick the addressing mode. 1732 */ 1733 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1734 new_fcf_record); 1735 /* 1736 * If the user specified a required address mode, assign that 1737 * address mode 1738 */ 1739 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1740 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1741 *addr_mode = (conn_entry->conn_rec.flags & 1742 FCFCNCT_AM_SPMA) ? 1743 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1744 /* 1745 * If the user specified a preferred address mode, use the 1746 * addr mode only if FCF support the addr_mode. 1747 */ 1748 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1749 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1750 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1751 (*addr_mode & LPFC_FCF_SPMA)) 1752 *addr_mode = LPFC_FCF_SPMA; 1753 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1754 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1755 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1756 (*addr_mode & LPFC_FCF_FPMA)) 1757 *addr_mode = LPFC_FCF_FPMA; 1758 1759 /* If matching connect list has a vlan id, use it */ 1760 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1761 *vlan_id = conn_entry->conn_rec.vlan_tag; 1762 /* 1763 * If no vlan id is specified in connect list, use the vlan id 1764 * in the FCF record 1765 */ 1766 else if (fcf_vlan_id) 1767 *vlan_id = fcf_vlan_id; 1768 else 1769 *vlan_id = LPFC_FCOE_NULL_VID; 1770 1771 return 1; 1772 } 1773 1774 return 0; 1775} 1776 1777/** 1778 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1779 * @phba: pointer to lpfc hba data structure. 1780 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1781 * 1782 * This function check if there is any fcoe event pending while driver 1783 * scan FCF entries. If there is any pending event, it will restart the 1784 * FCF saning and return 1 else return 0. 1785 */ 1786int 1787lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1788{ 1789 /* 1790 * If the Link is up and no FCoE events while in the 1791 * FCF discovery, no need to restart FCF discovery. 1792 */ 1793 if ((phba->link_state >= LPFC_LINK_UP) && 1794 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1795 return 0; 1796 1797 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1798 "2768 Pending link or FCF event during current " 1799 "handling of the previous event: link_state:x%x, " 1800 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1801 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1802 phba->fcoe_eventtag); 1803 1804 spin_lock_irq(&phba->hbalock); 1805 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1806 spin_unlock_irq(&phba->hbalock); 1807 1808 if (phba->link_state >= LPFC_LINK_UP) { 1809 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1810 "2780 Restart FCF table scan due to " 1811 "pending FCF event:evt_tag_at_scan:x%x, " 1812 "evt_tag_current:x%x\n", 1813 phba->fcoe_eventtag_at_fcf_scan, 1814 phba->fcoe_eventtag); 1815 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1816 } else { 1817 /* 1818 * Do not continue FCF discovery and clear FCF_TS_INPROG 1819 * flag 1820 */ 1821 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1822 "2833 Stop FCF discovery process due to link " 1823 "state change (x%x)\n", phba->link_state); 1824 spin_lock_irq(&phba->hbalock); 1825 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1826 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1827 spin_unlock_irq(&phba->hbalock); 1828 } 1829 1830 /* Unregister the currently registered FCF if required */ 1831 if (unreg_fcf) { 1832 spin_lock_irq(&phba->hbalock); 1833 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1834 spin_unlock_irq(&phba->hbalock); 1835 lpfc_sli4_unregister_fcf(phba); 1836 } 1837 return 1; 1838} 1839 1840/** 1841 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1842 * @phba: pointer to lpfc hba data structure. 1843 * @fcf_cnt: number of eligible fcf record seen so far. 1844 * 1845 * This function makes an running random selection decision on FCF record to 1846 * use through a sequence of @fcf_cnt eligible FCF records with equal 1847 * probability. To perform integer manunipulation of random numbers with 1848 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1849 * from prandom_u32() are taken as the random random number generated. 1850 * 1851 * Returns true when outcome is for the newly read FCF record should be 1852 * chosen; otherwise, return false when outcome is for keeping the previously 1853 * chosen FCF record. 1854 **/ 1855static bool 1856lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1857{ 1858 uint32_t rand_num; 1859 1860 /* Get 16-bit uniform random number */ 1861 rand_num = 0xFFFF & prandom_u32(); 1862 1863 /* Decision with probability 1/fcf_cnt */ 1864 if ((fcf_cnt * rand_num) < 0xFFFF) 1865 return true; 1866 else 1867 return false; 1868} 1869 1870/** 1871 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1872 * @phba: pointer to lpfc hba data structure. 1873 * @mboxq: pointer to mailbox object. 1874 * @next_fcf_index: pointer to holder of next fcf index. 1875 * 1876 * This routine parses the non-embedded fcf mailbox command by performing the 1877 * necessarily error checking, non-embedded read FCF record mailbox command 1878 * SGE parsing, and endianness swapping. 1879 * 1880 * Returns the pointer to the new FCF record in the non-embedded mailbox 1881 * command DMA memory if successfully, other NULL. 1882 */ 1883static struct fcf_record * 1884lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1885 uint16_t *next_fcf_index) 1886{ 1887 void *virt_addr; 1888 struct lpfc_mbx_sge sge; 1889 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1890 uint32_t shdr_status, shdr_add_status, if_type; 1891 union lpfc_sli4_cfg_shdr *shdr; 1892 struct fcf_record *new_fcf_record; 1893 1894 /* Get the first SGE entry from the non-embedded DMA memory. This 1895 * routine only uses a single SGE. 1896 */ 1897 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1898 if (unlikely(!mboxq->sge_array)) { 1899 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 1900 "2524 Failed to get the non-embedded SGE " 1901 "virtual address\n"); 1902 return NULL; 1903 } 1904 virt_addr = mboxq->sge_array->addr[0]; 1905 1906 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1907 lpfc_sli_pcimem_bcopy(shdr, shdr, 1908 sizeof(union lpfc_sli4_cfg_shdr)); 1909 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1910 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1911 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1912 if (shdr_status || shdr_add_status) { 1913 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1914 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1915 lpfc_printf_log(phba, KERN_ERR, 1916 LOG_TRACE_EVENT, 1917 "2726 READ_FCF_RECORD Indicates empty " 1918 "FCF table.\n"); 1919 else 1920 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 1921 "2521 READ_FCF_RECORD mailbox failed " 1922 "with status x%x add_status x%x, " 1923 "mbx\n", shdr_status, shdr_add_status); 1924 return NULL; 1925 } 1926 1927 /* Interpreting the returned information of the FCF record */ 1928 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1929 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1930 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1931 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1932 new_fcf_record = (struct fcf_record *)(virt_addr + 1933 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1934 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1935 offsetof(struct fcf_record, vlan_bitmap)); 1936 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1937 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1938 1939 return new_fcf_record; 1940} 1941 1942/** 1943 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1944 * @phba: pointer to lpfc hba data structure. 1945 * @fcf_record: pointer to the fcf record. 1946 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1947 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1948 * 1949 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1950 * enabled. 1951 **/ 1952static void 1953lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1954 struct fcf_record *fcf_record, 1955 uint16_t vlan_id, 1956 uint16_t next_fcf_index) 1957{ 1958 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1959 "2764 READ_FCF_RECORD:\n" 1960 "\tFCF_Index : x%x\n" 1961 "\tFCF_Avail : x%x\n" 1962 "\tFCF_Valid : x%x\n" 1963 "\tFCF_SOL : x%x\n" 1964 "\tFIP_Priority : x%x\n" 1965 "\tMAC_Provider : x%x\n" 1966 "\tLowest VLANID : x%x\n" 1967 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1968 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1969 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1970 "\tNext_FCF_Index: x%x\n", 1971 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1972 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1973 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1974 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1975 fcf_record->fip_priority, 1976 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1977 vlan_id, 1978 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1979 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1980 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1981 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1982 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1983 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1984 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1985 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1986 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1987 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1988 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1989 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1990 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1991 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1992 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1993 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1994 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1995 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1996 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1997 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1998 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1999 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 2000 next_fcf_index); 2001} 2002 2003/** 2004 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 2005 * @phba: pointer to lpfc hba data structure. 2006 * @fcf_rec: pointer to an existing FCF record. 2007 * @new_fcf_record: pointer to a new FCF record. 2008 * @new_vlan_id: vlan id from the new FCF record. 2009 * 2010 * This function performs matching test of a new FCF record against an existing 2011 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 2012 * will not be used as part of the FCF record matching criteria. 2013 * 2014 * Returns true if all the fields matching, otherwise returns false. 2015 */ 2016static bool 2017lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 2018 struct lpfc_fcf_rec *fcf_rec, 2019 struct fcf_record *new_fcf_record, 2020 uint16_t new_vlan_id) 2021{ 2022 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 2023 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 2024 return false; 2025 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 2026 return false; 2027 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 2028 return false; 2029 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 2030 return false; 2031 if (fcf_rec->priority != new_fcf_record->fip_priority) 2032 return false; 2033 return true; 2034} 2035 2036/** 2037 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 2038 * @vport: Pointer to vport object. 2039 * @fcf_index: index to next fcf. 2040 * 2041 * This function processing the roundrobin fcf failover to next fcf index. 2042 * When this function is invoked, there will be a current fcf registered 2043 * for flogi. 2044 * Return: 0 for continue retrying flogi on currently registered fcf; 2045 * 1 for stop flogi on currently registered fcf; 2046 */ 2047int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 2048{ 2049 struct lpfc_hba *phba = vport->phba; 2050 int rc; 2051 2052 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2053 spin_lock_irq(&phba->hbalock); 2054 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2055 spin_unlock_irq(&phba->hbalock); 2056 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2057 "2872 Devloss tmo with no eligible " 2058 "FCF, unregister in-use FCF (x%x) " 2059 "and rescan FCF table\n", 2060 phba->fcf.current_rec.fcf_indx); 2061 lpfc_unregister_fcf_rescan(phba); 2062 goto stop_flogi_current_fcf; 2063 } 2064 /* Mark the end to FLOGI roundrobin failover */ 2065 phba->hba_flag &= ~FCF_RR_INPROG; 2066 /* Allow action to new fcf asynchronous event */ 2067 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2068 spin_unlock_irq(&phba->hbalock); 2069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2070 "2865 No FCF available, stop roundrobin FCF " 2071 "failover and change port state:x%x/x%x\n", 2072 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2073 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2074 2075 if (!phba->fcf.fcf_redisc_attempted) { 2076 lpfc_unregister_fcf(phba); 2077 2078 rc = lpfc_sli4_redisc_fcf_table(phba); 2079 if (!rc) { 2080 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2081 "3195 Rediscover FCF table\n"); 2082 phba->fcf.fcf_redisc_attempted = 1; 2083 lpfc_sli4_clear_fcf_rr_bmask(phba); 2084 } else { 2085 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2086 "3196 Rediscover FCF table " 2087 "failed. Status:x%x\n", rc); 2088 } 2089 } else { 2090 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2091 "3197 Already rediscover FCF table " 2092 "attempted. No more retry\n"); 2093 } 2094 goto stop_flogi_current_fcf; 2095 } else { 2096 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2097 "2794 Try FLOGI roundrobin FCF failover to " 2098 "(x%x)\n", fcf_index); 2099 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2100 if (rc) 2101 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2102 "2761 FLOGI roundrobin FCF failover " 2103 "failed (rc:x%x) to read FCF (x%x)\n", 2104 rc, phba->fcf.current_rec.fcf_indx); 2105 else 2106 goto stop_flogi_current_fcf; 2107 } 2108 return 0; 2109 2110stop_flogi_current_fcf: 2111 lpfc_can_disctmo(vport); 2112 return 1; 2113} 2114 2115/** 2116 * lpfc_sli4_fcf_pri_list_del 2117 * @phba: pointer to lpfc hba data structure. 2118 * @fcf_index: the index of the fcf record to delete 2119 * This routine checks the on list flag of the fcf_index to be deleted. 2120 * If it is one the list then it is removed from the list, and the flag 2121 * is cleared. This routine grab the hbalock before removing the fcf 2122 * record from the list. 2123 **/ 2124static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2125 uint16_t fcf_index) 2126{ 2127 struct lpfc_fcf_pri *new_fcf_pri; 2128 2129 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2130 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2131 "3058 deleting idx x%x pri x%x flg x%x\n", 2132 fcf_index, new_fcf_pri->fcf_rec.priority, 2133 new_fcf_pri->fcf_rec.flag); 2134 spin_lock_irq(&phba->hbalock); 2135 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2136 if (phba->fcf.current_rec.priority == 2137 new_fcf_pri->fcf_rec.priority) 2138 phba->fcf.eligible_fcf_cnt--; 2139 list_del_init(&new_fcf_pri->list); 2140 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2141 } 2142 spin_unlock_irq(&phba->hbalock); 2143} 2144 2145/** 2146 * lpfc_sli4_set_fcf_flogi_fail 2147 * @phba: pointer to lpfc hba data structure. 2148 * @fcf_index: the index of the fcf record to update 2149 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2150 * flag so the the round robin slection for the particular priority level 2151 * will try a different fcf record that does not have this bit set. 2152 * If the fcf record is re-read for any reason this flag is cleared brfore 2153 * adding it to the priority list. 2154 **/ 2155void 2156lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2157{ 2158 struct lpfc_fcf_pri *new_fcf_pri; 2159 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2160 spin_lock_irq(&phba->hbalock); 2161 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2162 spin_unlock_irq(&phba->hbalock); 2163} 2164 2165/** 2166 * lpfc_sli4_fcf_pri_list_add 2167 * @phba: pointer to lpfc hba data structure. 2168 * @fcf_index: the index of the fcf record to add 2169 * @new_fcf_record: pointer to a new FCF record. 2170 * This routine checks the priority of the fcf_index to be added. 2171 * If it is a lower priority than the current head of the fcf_pri list 2172 * then it is added to the list in the right order. 2173 * If it is the same priority as the current head of the list then it 2174 * is added to the head of the list and its bit in the rr_bmask is set. 2175 * If the fcf_index to be added is of a higher priority than the current 2176 * head of the list then the rr_bmask is cleared, its bit is set in the 2177 * rr_bmask and it is added to the head of the list. 2178 * returns: 2179 * 0=success 1=failure 2180 **/ 2181static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2182 uint16_t fcf_index, 2183 struct fcf_record *new_fcf_record) 2184{ 2185 uint16_t current_fcf_pri; 2186 uint16_t last_index; 2187 struct lpfc_fcf_pri *fcf_pri; 2188 struct lpfc_fcf_pri *next_fcf_pri; 2189 struct lpfc_fcf_pri *new_fcf_pri; 2190 int ret; 2191 2192 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2193 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2194 "3059 adding idx x%x pri x%x flg x%x\n", 2195 fcf_index, new_fcf_record->fip_priority, 2196 new_fcf_pri->fcf_rec.flag); 2197 spin_lock_irq(&phba->hbalock); 2198 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2199 list_del_init(&new_fcf_pri->list); 2200 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2201 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2202 if (list_empty(&phba->fcf.fcf_pri_list)) { 2203 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2204 ret = lpfc_sli4_fcf_rr_index_set(phba, 2205 new_fcf_pri->fcf_rec.fcf_index); 2206 goto out; 2207 } 2208 2209 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2210 LPFC_SLI4_FCF_TBL_INDX_MAX); 2211 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2212 ret = 0; /* Empty rr list */ 2213 goto out; 2214 } 2215 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2216 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2217 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2218 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2219 memset(phba->fcf.fcf_rr_bmask, 0, 2220 sizeof(*phba->fcf.fcf_rr_bmask)); 2221 /* fcfs_at_this_priority_level = 1; */ 2222 phba->fcf.eligible_fcf_cnt = 1; 2223 } else 2224 /* fcfs_at_this_priority_level++; */ 2225 phba->fcf.eligible_fcf_cnt++; 2226 ret = lpfc_sli4_fcf_rr_index_set(phba, 2227 new_fcf_pri->fcf_rec.fcf_index); 2228 goto out; 2229 } 2230 2231 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2232 &phba->fcf.fcf_pri_list, list) { 2233 if (new_fcf_pri->fcf_rec.priority <= 2234 fcf_pri->fcf_rec.priority) { 2235 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2236 list_add(&new_fcf_pri->list, 2237 &phba->fcf.fcf_pri_list); 2238 else 2239 list_add(&new_fcf_pri->list, 2240 &((struct lpfc_fcf_pri *) 2241 fcf_pri->list.prev)->list); 2242 ret = 0; 2243 goto out; 2244 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2245 || new_fcf_pri->fcf_rec.priority < 2246 next_fcf_pri->fcf_rec.priority) { 2247 list_add(&new_fcf_pri->list, &fcf_pri->list); 2248 ret = 0; 2249 goto out; 2250 } 2251 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2252 continue; 2253 2254 } 2255 ret = 1; 2256out: 2257 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2258 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2259 spin_unlock_irq(&phba->hbalock); 2260 return ret; 2261} 2262 2263/** 2264 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2265 * @phba: pointer to lpfc hba data structure. 2266 * @mboxq: pointer to mailbox object. 2267 * 2268 * This function iterates through all the fcf records available in 2269 * HBA and chooses the optimal FCF record for discovery. After finding 2270 * the FCF for discovery it registers the FCF record and kicks start 2271 * discovery. 2272 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2273 * use an FCF record which matches fabric name and mac address of the 2274 * currently used FCF record. 2275 * If the driver supports only one FCF, it will try to use the FCF record 2276 * used by BOOT_BIOS. 2277 */ 2278void 2279lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2280{ 2281 struct fcf_record *new_fcf_record; 2282 uint32_t boot_flag, addr_mode; 2283 uint16_t fcf_index, next_fcf_index; 2284 struct lpfc_fcf_rec *fcf_rec = NULL; 2285 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2286 bool select_new_fcf; 2287 int rc; 2288 2289 /* If there is pending FCoE event restart FCF table scan */ 2290 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2291 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2292 return; 2293 } 2294 2295 /* Parse the FCF record from the non-embedded mailbox command */ 2296 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2297 &next_fcf_index); 2298 if (!new_fcf_record) { 2299 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2300 "2765 Mailbox command READ_FCF_RECORD " 2301 "failed to retrieve a FCF record.\n"); 2302 /* Let next new FCF event trigger fast failover */ 2303 spin_lock_irq(&phba->hbalock); 2304 phba->hba_flag &= ~FCF_TS_INPROG; 2305 spin_unlock_irq(&phba->hbalock); 2306 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2307 return; 2308 } 2309 2310 /* Check the FCF record against the connection list */ 2311 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2312 &addr_mode, &vlan_id); 2313 2314 /* Log the FCF record information if turned on */ 2315 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2316 next_fcf_index); 2317 2318 /* 2319 * If the fcf record does not match with connect list entries 2320 * read the next entry; otherwise, this is an eligible FCF 2321 * record for roundrobin FCF failover. 2322 */ 2323 if (!rc) { 2324 lpfc_sli4_fcf_pri_list_del(phba, 2325 bf_get(lpfc_fcf_record_fcf_index, 2326 new_fcf_record)); 2327 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2328 "2781 FCF (x%x) failed connection " 2329 "list check: (x%x/x%x/%x)\n", 2330 bf_get(lpfc_fcf_record_fcf_index, 2331 new_fcf_record), 2332 bf_get(lpfc_fcf_record_fcf_avail, 2333 new_fcf_record), 2334 bf_get(lpfc_fcf_record_fcf_valid, 2335 new_fcf_record), 2336 bf_get(lpfc_fcf_record_fcf_sol, 2337 new_fcf_record)); 2338 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2339 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2340 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2341 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2342 phba->fcf.current_rec.fcf_indx) { 2343 lpfc_printf_log(phba, KERN_ERR, 2344 LOG_TRACE_EVENT, 2345 "2862 FCF (x%x) matches property " 2346 "of in-use FCF (x%x)\n", 2347 bf_get(lpfc_fcf_record_fcf_index, 2348 new_fcf_record), 2349 phba->fcf.current_rec.fcf_indx); 2350 goto read_next_fcf; 2351 } 2352 /* 2353 * In case the current in-use FCF record becomes 2354 * invalid/unavailable during FCF discovery that 2355 * was not triggered by fast FCF failover process, 2356 * treat it as fast FCF failover. 2357 */ 2358 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2359 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2360 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2361 "2835 Invalid in-use FCF " 2362 "(x%x), enter FCF failover " 2363 "table scan.\n", 2364 phba->fcf.current_rec.fcf_indx); 2365 spin_lock_irq(&phba->hbalock); 2366 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2367 spin_unlock_irq(&phba->hbalock); 2368 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2369 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2370 LPFC_FCOE_FCF_GET_FIRST); 2371 return; 2372 } 2373 } 2374 goto read_next_fcf; 2375 } else { 2376 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2377 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2378 new_fcf_record); 2379 if (rc) 2380 goto read_next_fcf; 2381 } 2382 2383 /* 2384 * If this is not the first FCF discovery of the HBA, use last 2385 * FCF record for the discovery. The condition that a rescan 2386 * matches the in-use FCF record: fabric name, switch name, mac 2387 * address, and vlan_id. 2388 */ 2389 spin_lock_irq(&phba->hbalock); 2390 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2391 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2392 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2393 new_fcf_record, vlan_id)) { 2394 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2395 phba->fcf.current_rec.fcf_indx) { 2396 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2397 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2398 /* Stop FCF redisc wait timer */ 2399 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2400 phba); 2401 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2402 /* Fast failover, mark completed */ 2403 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2404 spin_unlock_irq(&phba->hbalock); 2405 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2406 "2836 New FCF matches in-use " 2407 "FCF (x%x), port_state:x%x, " 2408 "fc_flag:x%x\n", 2409 phba->fcf.current_rec.fcf_indx, 2410 phba->pport->port_state, 2411 phba->pport->fc_flag); 2412 goto out; 2413 } else 2414 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2415 "2863 New FCF (x%x) matches " 2416 "property of in-use FCF (x%x)\n", 2417 bf_get(lpfc_fcf_record_fcf_index, 2418 new_fcf_record), 2419 phba->fcf.current_rec.fcf_indx); 2420 } 2421 /* 2422 * Read next FCF record from HBA searching for the matching 2423 * with in-use record only if not during the fast failover 2424 * period. In case of fast failover period, it shall try to 2425 * determine whether the FCF record just read should be the 2426 * next candidate. 2427 */ 2428 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2429 spin_unlock_irq(&phba->hbalock); 2430 goto read_next_fcf; 2431 } 2432 } 2433 /* 2434 * Update on failover FCF record only if it's in FCF fast-failover 2435 * period; otherwise, update on current FCF record. 2436 */ 2437 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2438 fcf_rec = &phba->fcf.failover_rec; 2439 else 2440 fcf_rec = &phba->fcf.current_rec; 2441 2442 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2443 /* 2444 * If the driver FCF record does not have boot flag 2445 * set and new hba fcf record has boot flag set, use 2446 * the new hba fcf record. 2447 */ 2448 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2449 /* Choose this FCF record */ 2450 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2451 "2837 Update current FCF record " 2452 "(x%x) with new FCF record (x%x)\n", 2453 fcf_rec->fcf_indx, 2454 bf_get(lpfc_fcf_record_fcf_index, 2455 new_fcf_record)); 2456 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2457 addr_mode, vlan_id, BOOT_ENABLE); 2458 spin_unlock_irq(&phba->hbalock); 2459 goto read_next_fcf; 2460 } 2461 /* 2462 * If the driver FCF record has boot flag set and the 2463 * new hba FCF record does not have boot flag, read 2464 * the next FCF record. 2465 */ 2466 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2467 spin_unlock_irq(&phba->hbalock); 2468 goto read_next_fcf; 2469 } 2470 /* 2471 * If the new hba FCF record has lower priority value 2472 * than the driver FCF record, use the new record. 2473 */ 2474 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2475 /* Choose the new FCF record with lower priority */ 2476 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2477 "2838 Update current FCF record " 2478 "(x%x) with new FCF record (x%x)\n", 2479 fcf_rec->fcf_indx, 2480 bf_get(lpfc_fcf_record_fcf_index, 2481 new_fcf_record)); 2482 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2483 addr_mode, vlan_id, 0); 2484 /* Reset running random FCF selection count */ 2485 phba->fcf.eligible_fcf_cnt = 1; 2486 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2487 /* Update running random FCF selection count */ 2488 phba->fcf.eligible_fcf_cnt++; 2489 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2490 phba->fcf.eligible_fcf_cnt); 2491 if (select_new_fcf) { 2492 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2493 "2839 Update current FCF record " 2494 "(x%x) with new FCF record (x%x)\n", 2495 fcf_rec->fcf_indx, 2496 bf_get(lpfc_fcf_record_fcf_index, 2497 new_fcf_record)); 2498 /* Choose the new FCF by random selection */ 2499 __lpfc_update_fcf_record(phba, fcf_rec, 2500 new_fcf_record, 2501 addr_mode, vlan_id, 0); 2502 } 2503 } 2504 spin_unlock_irq(&phba->hbalock); 2505 goto read_next_fcf; 2506 } 2507 /* 2508 * This is the first suitable FCF record, choose this record for 2509 * initial best-fit FCF. 2510 */ 2511 if (fcf_rec) { 2512 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2513 "2840 Update initial FCF candidate " 2514 "with FCF (x%x)\n", 2515 bf_get(lpfc_fcf_record_fcf_index, 2516 new_fcf_record)); 2517 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2518 addr_mode, vlan_id, (boot_flag ? 2519 BOOT_ENABLE : 0)); 2520 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2521 /* Setup initial running random FCF selection count */ 2522 phba->fcf.eligible_fcf_cnt = 1; 2523 } 2524 spin_unlock_irq(&phba->hbalock); 2525 goto read_next_fcf; 2526 2527read_next_fcf: 2528 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2529 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2530 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2531 /* 2532 * Case of FCF fast failover scan 2533 */ 2534 2535 /* 2536 * It has not found any suitable FCF record, cancel 2537 * FCF scan inprogress, and do nothing 2538 */ 2539 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2540 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2541 "2782 No suitable FCF found: " 2542 "(x%x/x%x)\n", 2543 phba->fcoe_eventtag_at_fcf_scan, 2544 bf_get(lpfc_fcf_record_fcf_index, 2545 new_fcf_record)); 2546 spin_lock_irq(&phba->hbalock); 2547 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2548 phba->hba_flag &= ~FCF_TS_INPROG; 2549 spin_unlock_irq(&phba->hbalock); 2550 /* Unregister in-use FCF and rescan */ 2551 lpfc_printf_log(phba, KERN_INFO, 2552 LOG_FIP, 2553 "2864 On devloss tmo " 2554 "unreg in-use FCF and " 2555 "rescan FCF table\n"); 2556 lpfc_unregister_fcf_rescan(phba); 2557 return; 2558 } 2559 /* 2560 * Let next new FCF event trigger fast failover 2561 */ 2562 phba->hba_flag &= ~FCF_TS_INPROG; 2563 spin_unlock_irq(&phba->hbalock); 2564 return; 2565 } 2566 /* 2567 * It has found a suitable FCF record that is not 2568 * the same as in-use FCF record, unregister the 2569 * in-use FCF record, replace the in-use FCF record 2570 * with the new FCF record, mark FCF fast failover 2571 * completed, and then start register the new FCF 2572 * record. 2573 */ 2574 2575 /* Unregister the current in-use FCF record */ 2576 lpfc_unregister_fcf(phba); 2577 2578 /* Replace in-use record with the new record */ 2579 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2580 "2842 Replace in-use FCF (x%x) " 2581 "with failover FCF (x%x)\n", 2582 phba->fcf.current_rec.fcf_indx, 2583 phba->fcf.failover_rec.fcf_indx); 2584 memcpy(&phba->fcf.current_rec, 2585 &phba->fcf.failover_rec, 2586 sizeof(struct lpfc_fcf_rec)); 2587 /* 2588 * Mark the fast FCF failover rediscovery completed 2589 * and the start of the first round of the roundrobin 2590 * FCF failover. 2591 */ 2592 spin_lock_irq(&phba->hbalock); 2593 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2594 spin_unlock_irq(&phba->hbalock); 2595 /* Register to the new FCF record */ 2596 lpfc_register_fcf(phba); 2597 } else { 2598 /* 2599 * In case of transaction period to fast FCF failover, 2600 * do nothing when search to the end of the FCF table. 2601 */ 2602 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2603 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2604 return; 2605 2606 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2607 phba->fcf.fcf_flag & FCF_IN_USE) { 2608 /* 2609 * In case the current in-use FCF record no 2610 * longer existed during FCF discovery that 2611 * was not triggered by fast FCF failover 2612 * process, treat it as fast FCF failover. 2613 */ 2614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2615 "2841 In-use FCF record (x%x) " 2616 "not reported, entering fast " 2617 "FCF failover mode scanning.\n", 2618 phba->fcf.current_rec.fcf_indx); 2619 spin_lock_irq(&phba->hbalock); 2620 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2621 spin_unlock_irq(&phba->hbalock); 2622 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2623 LPFC_FCOE_FCF_GET_FIRST); 2624 return; 2625 } 2626 /* Register to the new FCF record */ 2627 lpfc_register_fcf(phba); 2628 } 2629 } else 2630 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2631 return; 2632 2633out: 2634 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2635 lpfc_register_fcf(phba); 2636 2637 return; 2638} 2639 2640/** 2641 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2642 * @phba: pointer to lpfc hba data structure. 2643 * @mboxq: pointer to mailbox object. 2644 * 2645 * This is the callback function for FLOGI failure roundrobin FCF failover 2646 * read FCF record mailbox command from the eligible FCF record bmask for 2647 * performing the failover. If the FCF read back is not valid/available, it 2648 * fails through to retrying FLOGI to the currently registered FCF again. 2649 * Otherwise, if the FCF read back is valid and available, it will set the 2650 * newly read FCF record to the failover FCF record, unregister currently 2651 * registered FCF record, copy the failover FCF record to the current 2652 * FCF record, and then register the current FCF record before proceeding 2653 * to trying FLOGI on the new failover FCF. 2654 */ 2655void 2656lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2657{ 2658 struct fcf_record *new_fcf_record; 2659 uint32_t boot_flag, addr_mode; 2660 uint16_t next_fcf_index, fcf_index; 2661 uint16_t current_fcf_index; 2662 uint16_t vlan_id; 2663 int rc; 2664 2665 /* If link state is not up, stop the roundrobin failover process */ 2666 if (phba->link_state < LPFC_LINK_UP) { 2667 spin_lock_irq(&phba->hbalock); 2668 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2669 phba->hba_flag &= ~FCF_RR_INPROG; 2670 spin_unlock_irq(&phba->hbalock); 2671 goto out; 2672 } 2673 2674 /* Parse the FCF record from the non-embedded mailbox command */ 2675 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2676 &next_fcf_index); 2677 if (!new_fcf_record) { 2678 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2679 "2766 Mailbox command READ_FCF_RECORD " 2680 "failed to retrieve a FCF record. " 2681 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2682 phba->fcf.fcf_flag); 2683 lpfc_unregister_fcf_rescan(phba); 2684 goto out; 2685 } 2686 2687 /* Get the needed parameters from FCF record */ 2688 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2689 &addr_mode, &vlan_id); 2690 2691 /* Log the FCF record information if turned on */ 2692 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2693 next_fcf_index); 2694 2695 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2696 if (!rc) { 2697 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2698 "2848 Remove ineligible FCF (x%x) from " 2699 "from roundrobin bmask\n", fcf_index); 2700 /* Clear roundrobin bmask bit for ineligible FCF */ 2701 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2702 /* Perform next round of roundrobin FCF failover */ 2703 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2704 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2705 if (rc) 2706 goto out; 2707 goto error_out; 2708 } 2709 2710 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2711 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2712 "2760 Perform FLOGI roundrobin FCF failover: " 2713 "FCF (x%x) back to FCF (x%x)\n", 2714 phba->fcf.current_rec.fcf_indx, fcf_index); 2715 /* Wait 500 ms before retrying FLOGI to current FCF */ 2716 msleep(500); 2717 lpfc_issue_init_vfi(phba->pport); 2718 goto out; 2719 } 2720 2721 /* Upload new FCF record to the failover FCF record */ 2722 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2723 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2724 phba->fcf.failover_rec.fcf_indx, fcf_index); 2725 spin_lock_irq(&phba->hbalock); 2726 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2727 new_fcf_record, addr_mode, vlan_id, 2728 (boot_flag ? BOOT_ENABLE : 0)); 2729 spin_unlock_irq(&phba->hbalock); 2730 2731 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2732 2733 /* Unregister the current in-use FCF record */ 2734 lpfc_unregister_fcf(phba); 2735 2736 /* Replace in-use record with the new record */ 2737 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2738 sizeof(struct lpfc_fcf_rec)); 2739 2740 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2741 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2742 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2743 2744error_out: 2745 lpfc_register_fcf(phba); 2746out: 2747 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2748} 2749 2750/** 2751 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2752 * @phba: pointer to lpfc hba data structure. 2753 * @mboxq: pointer to mailbox object. 2754 * 2755 * This is the callback function of read FCF record mailbox command for 2756 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2757 * failover when a new FCF event happened. If the FCF read back is 2758 * valid/available and it passes the connection list check, it updates 2759 * the bmask for the eligible FCF record for roundrobin failover. 2760 */ 2761void 2762lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2763{ 2764 struct fcf_record *new_fcf_record; 2765 uint32_t boot_flag, addr_mode; 2766 uint16_t fcf_index, next_fcf_index; 2767 uint16_t vlan_id; 2768 int rc; 2769 2770 /* If link state is not up, no need to proceed */ 2771 if (phba->link_state < LPFC_LINK_UP) 2772 goto out; 2773 2774 /* If FCF discovery period is over, no need to proceed */ 2775 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2776 goto out; 2777 2778 /* Parse the FCF record from the non-embedded mailbox command */ 2779 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2780 &next_fcf_index); 2781 if (!new_fcf_record) { 2782 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2783 "2767 Mailbox command READ_FCF_RECORD " 2784 "failed to retrieve a FCF record.\n"); 2785 goto out; 2786 } 2787 2788 /* Check the connection list for eligibility */ 2789 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2790 &addr_mode, &vlan_id); 2791 2792 /* Log the FCF record information if turned on */ 2793 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2794 next_fcf_index); 2795 2796 if (!rc) 2797 goto out; 2798 2799 /* Update the eligible FCF record index bmask */ 2800 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2801 2802 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2803 2804out: 2805 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2806} 2807 2808/** 2809 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2810 * @phba: pointer to lpfc hba data structure. 2811 * @mboxq: pointer to mailbox data structure. 2812 * 2813 * This function handles completion of init vfi mailbox command. 2814 */ 2815static void 2816lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2817{ 2818 struct lpfc_vport *vport = mboxq->vport; 2819 2820 /* 2821 * VFI not supported on interface type 0, just do the flogi 2822 * Also continue if the VFI is in use - just use the same one. 2823 */ 2824 if (mboxq->u.mb.mbxStatus && 2825 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2826 LPFC_SLI_INTF_IF_TYPE_0) && 2827 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2828 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2829 "2891 Init VFI mailbox failed 0x%x\n", 2830 mboxq->u.mb.mbxStatus); 2831 mempool_free(mboxq, phba->mbox_mem_pool); 2832 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2833 return; 2834 } 2835 2836 lpfc_initial_flogi(vport); 2837 mempool_free(mboxq, phba->mbox_mem_pool); 2838 return; 2839} 2840 2841/** 2842 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2843 * @vport: pointer to lpfc_vport data structure. 2844 * 2845 * This function issue a init_vfi mailbox command to initialize the VFI and 2846 * VPI for the physical port. 2847 */ 2848void 2849lpfc_issue_init_vfi(struct lpfc_vport *vport) 2850{ 2851 LPFC_MBOXQ_t *mboxq; 2852 int rc; 2853 struct lpfc_hba *phba = vport->phba; 2854 2855 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2856 if (!mboxq) { 2857 lpfc_printf_vlog(vport, KERN_ERR, 2858 LOG_TRACE_EVENT, "2892 Failed to allocate " 2859 "init_vfi mailbox\n"); 2860 return; 2861 } 2862 lpfc_init_vfi(mboxq, vport); 2863 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2864 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2865 if (rc == MBX_NOT_FINISHED) { 2866 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2867 "2893 Failed to issue init_vfi mailbox\n"); 2868 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2869 } 2870} 2871 2872/** 2873 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2874 * @phba: pointer to lpfc hba data structure. 2875 * @mboxq: pointer to mailbox data structure. 2876 * 2877 * This function handles completion of init vpi mailbox command. 2878 */ 2879void 2880lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2881{ 2882 struct lpfc_vport *vport = mboxq->vport; 2883 struct lpfc_nodelist *ndlp; 2884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2885 2886 if (mboxq->u.mb.mbxStatus) { 2887 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2888 "2609 Init VPI mailbox failed 0x%x\n", 2889 mboxq->u.mb.mbxStatus); 2890 mempool_free(mboxq, phba->mbox_mem_pool); 2891 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2892 return; 2893 } 2894 spin_lock_irq(shost->host_lock); 2895 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2896 spin_unlock_irq(shost->host_lock); 2897 2898 /* If this port is physical port or FDISC is done, do reg_vpi */ 2899 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2900 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2901 if (!ndlp) 2902 lpfc_printf_vlog(vport, KERN_ERR, 2903 LOG_TRACE_EVENT, 2904 "2731 Cannot find fabric " 2905 "controller node\n"); 2906 else 2907 lpfc_register_new_vport(phba, vport, ndlp); 2908 mempool_free(mboxq, phba->mbox_mem_pool); 2909 return; 2910 } 2911 2912 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2913 lpfc_initial_fdisc(vport); 2914 else { 2915 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2916 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2917 "2606 No NPIV Fabric support\n"); 2918 } 2919 mempool_free(mboxq, phba->mbox_mem_pool); 2920 return; 2921} 2922 2923/** 2924 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2925 * @vport: pointer to lpfc_vport data structure. 2926 * 2927 * This function issue a init_vpi mailbox command to initialize 2928 * VPI for the vport. 2929 */ 2930void 2931lpfc_issue_init_vpi(struct lpfc_vport *vport) 2932{ 2933 LPFC_MBOXQ_t *mboxq; 2934 int rc, vpi; 2935 2936 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2937 vpi = lpfc_alloc_vpi(vport->phba); 2938 if (!vpi) { 2939 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2940 "3303 Failed to obtain vport vpi\n"); 2941 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2942 return; 2943 } 2944 vport->vpi = vpi; 2945 } 2946 2947 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2948 if (!mboxq) { 2949 lpfc_printf_vlog(vport, KERN_ERR, 2950 LOG_TRACE_EVENT, "2607 Failed to allocate " 2951 "init_vpi mailbox\n"); 2952 return; 2953 } 2954 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2955 mboxq->vport = vport; 2956 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2957 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2958 if (rc == MBX_NOT_FINISHED) { 2959 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 2960 "2608 Failed to issue init_vpi mailbox\n"); 2961 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2962 } 2963} 2964 2965/** 2966 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2967 * @phba: pointer to lpfc hba data structure. 2968 * 2969 * This function loops through the list of vports on the @phba and issues an 2970 * FDISC if possible. 2971 */ 2972void 2973lpfc_start_fdiscs(struct lpfc_hba *phba) 2974{ 2975 struct lpfc_vport **vports; 2976 int i; 2977 2978 vports = lpfc_create_vport_work_array(phba); 2979 if (vports != NULL) { 2980 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2981 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2982 continue; 2983 /* There are no vpi for this vport */ 2984 if (vports[i]->vpi > phba->max_vpi) { 2985 lpfc_vport_set_state(vports[i], 2986 FC_VPORT_FAILED); 2987 continue; 2988 } 2989 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2990 lpfc_vport_set_state(vports[i], 2991 FC_VPORT_LINKDOWN); 2992 continue; 2993 } 2994 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2995 lpfc_issue_init_vpi(vports[i]); 2996 continue; 2997 } 2998 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2999 lpfc_initial_fdisc(vports[i]); 3000 else { 3001 lpfc_vport_set_state(vports[i], 3002 FC_VPORT_NO_FABRIC_SUPP); 3003 lpfc_printf_vlog(vports[i], KERN_ERR, 3004 LOG_TRACE_EVENT, 3005 "0259 No NPIV " 3006 "Fabric support\n"); 3007 } 3008 } 3009 } 3010 lpfc_destroy_vport_work_array(phba, vports); 3011} 3012 3013void 3014lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3015{ 3016 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 3017 struct lpfc_vport *vport = mboxq->vport; 3018 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3019 3020 /* 3021 * VFI not supported for interface type 0, so ignore any mailbox 3022 * error (except VFI in use) and continue with the discovery. 3023 */ 3024 if (mboxq->u.mb.mbxStatus && 3025 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3026 LPFC_SLI_INTF_IF_TYPE_0) && 3027 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3028 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3029 "2018 REG_VFI mbxStatus error x%x " 3030 "HBA state x%x\n", 3031 mboxq->u.mb.mbxStatus, vport->port_state); 3032 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3033 /* FLOGI failed, use loop map to make discovery list */ 3034 lpfc_disc_list_loopmap(vport); 3035 /* Start discovery */ 3036 lpfc_disc_start(vport); 3037 goto out_free_mem; 3038 } 3039 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3040 goto out_free_mem; 3041 } 3042 3043 /* If the VFI is already registered, there is nothing else to do 3044 * Unless this was a VFI update and we are in PT2PT mode, then 3045 * we should drop through to set the port state to ready. 3046 */ 3047 if (vport->fc_flag & FC_VFI_REGISTERED) 3048 if (!(phba->sli_rev == LPFC_SLI_REV4 && 3049 vport->fc_flag & FC_PT2PT)) 3050 goto out_free_mem; 3051 3052 /* The VPI is implicitly registered when the VFI is registered */ 3053 spin_lock_irq(shost->host_lock); 3054 vport->vpi_state |= LPFC_VPI_REGISTERED; 3055 vport->fc_flag |= FC_VFI_REGISTERED; 3056 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3057 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3058 spin_unlock_irq(shost->host_lock); 3059 3060 /* In case SLI4 FC loopback test, we are ready */ 3061 if ((phba->sli_rev == LPFC_SLI_REV4) && 3062 (phba->link_flag & LS_LOOPBACK_MODE)) { 3063 phba->link_state = LPFC_HBA_READY; 3064 goto out_free_mem; 3065 } 3066 3067 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3068 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3069 "alpacnt:%d LinkState:%x topology:%x\n", 3070 vport->port_state, vport->fc_flag, vport->fc_myDID, 3071 vport->phba->alpa_map[0], 3072 phba->link_state, phba->fc_topology); 3073 3074 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3075 /* 3076 * For private loop or for NPort pt2pt, 3077 * just start discovery and we are done. 3078 */ 3079 if ((vport->fc_flag & FC_PT2PT) || 3080 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3081 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3082 3083 /* Use loop map to make discovery list */ 3084 lpfc_disc_list_loopmap(vport); 3085 /* Start discovery */ 3086 if (vport->fc_flag & FC_PT2PT) 3087 vport->port_state = LPFC_VPORT_READY; 3088 else 3089 lpfc_disc_start(vport); 3090 } else { 3091 lpfc_start_fdiscs(phba); 3092 lpfc_do_scr_ns_plogi(phba, vport); 3093 } 3094 } 3095 3096out_free_mem: 3097 mempool_free(mboxq, phba->mbox_mem_pool); 3098 if (dmabuf) { 3099 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3100 kfree(dmabuf); 3101 } 3102 return; 3103} 3104 3105static void 3106lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3107{ 3108 MAILBOX_t *mb = &pmb->u.mb; 3109 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3110 struct lpfc_vport *vport = pmb->vport; 3111 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3112 struct serv_parm *sp = &vport->fc_sparam; 3113 uint32_t ed_tov; 3114 3115 /* Check for error */ 3116 if (mb->mbxStatus) { 3117 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3118 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3119 "0319 READ_SPARAM mbxStatus error x%x " 3120 "hba state x%x>\n", 3121 mb->mbxStatus, vport->port_state); 3122 lpfc_linkdown(phba); 3123 goto out; 3124 } 3125 3126 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3127 sizeof (struct serv_parm)); 3128 3129 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3130 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3131 ed_tov = (ed_tov + 999999) / 1000000; 3132 3133 phba->fc_edtov = ed_tov; 3134 phba->fc_ratov = (2 * ed_tov) / 1000; 3135 if (phba->fc_ratov < FF_DEF_RATOV) { 3136 /* RA_TOV should be atleast 10sec for initial flogi */ 3137 phba->fc_ratov = FF_DEF_RATOV; 3138 } 3139 3140 lpfc_update_vport_wwn(vport); 3141 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3142 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3143 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3144 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3145 } 3146 3147 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3148 kfree(mp); 3149 mempool_free(pmb, phba->mbox_mem_pool); 3150 3151 /* Check if sending the FLOGI is being deferred to after we get 3152 * up to date CSPs from MBX_READ_SPARAM. 3153 */ 3154 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3155 lpfc_initial_flogi(vport); 3156 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3157 } 3158 return; 3159 3160out: 3161 pmb->ctx_buf = NULL; 3162 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3163 kfree(mp); 3164 lpfc_issue_clear_la(phba, vport); 3165 mempool_free(pmb, phba->mbox_mem_pool); 3166 return; 3167} 3168 3169static void 3170lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3171{ 3172 struct lpfc_vport *vport = phba->pport; 3173 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3174 struct Scsi_Host *shost; 3175 int i; 3176 struct lpfc_dmabuf *mp; 3177 int rc; 3178 struct fcf_record *fcf_record; 3179 uint32_t fc_flags = 0; 3180 unsigned long iflags; 3181 3182 spin_lock_irqsave(&phba->hbalock, iflags); 3183 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3184 3185 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3186 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3187 case LPFC_LINK_SPEED_1GHZ: 3188 case LPFC_LINK_SPEED_2GHZ: 3189 case LPFC_LINK_SPEED_4GHZ: 3190 case LPFC_LINK_SPEED_8GHZ: 3191 case LPFC_LINK_SPEED_10GHZ: 3192 case LPFC_LINK_SPEED_16GHZ: 3193 case LPFC_LINK_SPEED_32GHZ: 3194 case LPFC_LINK_SPEED_64GHZ: 3195 case LPFC_LINK_SPEED_128GHZ: 3196 break; 3197 default: 3198 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3199 break; 3200 } 3201 } 3202 3203 if (phba->fc_topology && 3204 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3205 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3206 "3314 Toplogy changed was 0x%x is 0x%x\n", 3207 phba->fc_topology, 3208 bf_get(lpfc_mbx_read_top_topology, la)); 3209 phba->fc_topology_changed = 1; 3210 } 3211 3212 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3213 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3214 3215 shost = lpfc_shost_from_vport(vport); 3216 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3217 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3218 3219 /* if npiv is enabled and this adapter supports npiv log 3220 * a message that npiv is not supported in this topology 3221 */ 3222 if (phba->cfg_enable_npiv && phba->max_vpi) 3223 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3224 "1309 Link Up Event npiv not supported in loop " 3225 "topology\n"); 3226 /* Get Loop Map information */ 3227 if (bf_get(lpfc_mbx_read_top_il, la)) 3228 fc_flags |= FC_LBIT; 3229 3230 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3231 i = la->lilpBde64.tus.f.bdeSize; 3232 3233 if (i == 0) { 3234 phba->alpa_map[0] = 0; 3235 } else { 3236 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3237 int numalpa, j, k; 3238 union { 3239 uint8_t pamap[16]; 3240 struct { 3241 uint32_t wd1; 3242 uint32_t wd2; 3243 uint32_t wd3; 3244 uint32_t wd4; 3245 } pa; 3246 } un; 3247 numalpa = phba->alpa_map[0]; 3248 j = 0; 3249 while (j < numalpa) { 3250 memset(un.pamap, 0, 16); 3251 for (k = 1; j < numalpa; k++) { 3252 un.pamap[k - 1] = 3253 phba->alpa_map[j + 1]; 3254 j++; 3255 if (k == 16) 3256 break; 3257 } 3258 /* Link Up Event ALPA map */ 3259 lpfc_printf_log(phba, 3260 KERN_WARNING, 3261 LOG_LINK_EVENT, 3262 "1304 Link Up Event " 3263 "ALPA map Data: x%x " 3264 "x%x x%x x%x\n", 3265 un.pa.wd1, un.pa.wd2, 3266 un.pa.wd3, un.pa.wd4); 3267 } 3268 } 3269 } 3270 } else { 3271 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3272 if (phba->max_vpi && phba->cfg_enable_npiv && 3273 (phba->sli_rev >= LPFC_SLI_REV3)) 3274 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3275 } 3276 vport->fc_myDID = phba->fc_pref_DID; 3277 fc_flags |= FC_LBIT; 3278 } 3279 spin_unlock_irqrestore(&phba->hbalock, iflags); 3280 3281 if (fc_flags) { 3282 spin_lock_irqsave(shost->host_lock, iflags); 3283 vport->fc_flag |= fc_flags; 3284 spin_unlock_irqrestore(shost->host_lock, iflags); 3285 } 3286 3287 lpfc_linkup(phba); 3288 sparam_mbox = NULL; 3289 3290 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3291 if (!sparam_mbox) 3292 goto out; 3293 3294 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3295 if (rc) { 3296 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3297 goto out; 3298 } 3299 sparam_mbox->vport = vport; 3300 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3301 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3302 if (rc == MBX_NOT_FINISHED) { 3303 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3304 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3305 kfree(mp); 3306 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3307 goto out; 3308 } 3309 3310 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3311 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3312 if (!cfglink_mbox) 3313 goto out; 3314 vport->port_state = LPFC_LOCAL_CFG_LINK; 3315 lpfc_config_link(phba, cfglink_mbox); 3316 cfglink_mbox->vport = vport; 3317 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3318 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3319 if (rc == MBX_NOT_FINISHED) { 3320 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3321 goto out; 3322 } 3323 } else { 3324 vport->port_state = LPFC_VPORT_UNKNOWN; 3325 /* 3326 * Add the driver's default FCF record at FCF index 0 now. This 3327 * is phase 1 implementation that support FCF index 0 and driver 3328 * defaults. 3329 */ 3330 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3331 fcf_record = kzalloc(sizeof(struct fcf_record), 3332 GFP_KERNEL); 3333 if (unlikely(!fcf_record)) { 3334 lpfc_printf_log(phba, KERN_ERR, 3335 LOG_TRACE_EVENT, 3336 "2554 Could not allocate memory for " 3337 "fcf record\n"); 3338 rc = -ENODEV; 3339 goto out; 3340 } 3341 3342 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3343 LPFC_FCOE_FCF_DEF_INDEX); 3344 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3345 if (unlikely(rc)) { 3346 lpfc_printf_log(phba, KERN_ERR, 3347 LOG_TRACE_EVENT, 3348 "2013 Could not manually add FCF " 3349 "record 0, status %d\n", rc); 3350 rc = -ENODEV; 3351 kfree(fcf_record); 3352 goto out; 3353 } 3354 kfree(fcf_record); 3355 } 3356 /* 3357 * The driver is expected to do FIP/FCF. Call the port 3358 * and get the FCF Table. 3359 */ 3360 spin_lock_irqsave(&phba->hbalock, iflags); 3361 if (phba->hba_flag & FCF_TS_INPROG) { 3362 spin_unlock_irqrestore(&phba->hbalock, iflags); 3363 return; 3364 } 3365 /* This is the initial FCF discovery scan */ 3366 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3367 spin_unlock_irqrestore(&phba->hbalock, iflags); 3368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3369 "2778 Start FCF table scan at linkup\n"); 3370 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3371 LPFC_FCOE_FCF_GET_FIRST); 3372 if (rc) { 3373 spin_lock_irqsave(&phba->hbalock, iflags); 3374 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3375 spin_unlock_irqrestore(&phba->hbalock, iflags); 3376 goto out; 3377 } 3378 /* Reset FCF roundrobin bmask for new discovery */ 3379 lpfc_sli4_clear_fcf_rr_bmask(phba); 3380 } 3381 3382 /* Prepare for LINK up registrations */ 3383 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3384 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3385 init_utsname()->nodename); 3386 return; 3387out: 3388 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3389 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3390 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3391 vport->port_state, sparam_mbox, cfglink_mbox); 3392 lpfc_issue_clear_la(phba, vport); 3393 return; 3394} 3395 3396static void 3397lpfc_enable_la(struct lpfc_hba *phba) 3398{ 3399 uint32_t control; 3400 struct lpfc_sli *psli = &phba->sli; 3401 spin_lock_irq(&phba->hbalock); 3402 psli->sli_flag |= LPFC_PROCESS_LA; 3403 if (phba->sli_rev <= LPFC_SLI_REV3) { 3404 control = readl(phba->HCregaddr); 3405 control |= HC_LAINT_ENA; 3406 writel(control, phba->HCregaddr); 3407 readl(phba->HCregaddr); /* flush */ 3408 } 3409 spin_unlock_irq(&phba->hbalock); 3410} 3411 3412static void 3413lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3414{ 3415 lpfc_linkdown(phba); 3416 lpfc_enable_la(phba); 3417 lpfc_unregister_unused_fcf(phba); 3418 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3419} 3420 3421 3422/* 3423 * This routine handles processing a READ_TOPOLOGY mailbox 3424 * command upon completion. It is setup in the LPFC_MBOXQ 3425 * as the completion routine when the command is 3426 * handed off to the SLI layer. SLI4 only. 3427 */ 3428void 3429lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3430{ 3431 struct lpfc_vport *vport = pmb->vport; 3432 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3433 struct lpfc_mbx_read_top *la; 3434 struct lpfc_sli_ring *pring; 3435 MAILBOX_t *mb = &pmb->u.mb; 3436 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3437 uint8_t attn_type; 3438 unsigned long iflags; 3439 3440 /* Unblock ELS traffic */ 3441 pring = lpfc_phba_elsring(phba); 3442 if (pring) 3443 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3444 3445 /* Check for error */ 3446 if (mb->mbxStatus) { 3447 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3448 "1307 READ_LA mbox error x%x state x%x\n", 3449 mb->mbxStatus, vport->port_state); 3450 lpfc_mbx_issue_link_down(phba); 3451 phba->link_state = LPFC_HBA_ERROR; 3452 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3453 } 3454 3455 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3456 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3457 3458 memcpy(&phba->alpa_map[0], mp->virt, 128); 3459 3460 spin_lock_irqsave(shost->host_lock, iflags); 3461 if (bf_get(lpfc_mbx_read_top_pb, la)) 3462 vport->fc_flag |= FC_BYPASSED_MODE; 3463 else 3464 vport->fc_flag &= ~FC_BYPASSED_MODE; 3465 spin_unlock_irqrestore(shost->host_lock, iflags); 3466 3467 if (phba->fc_eventTag <= la->eventTag) { 3468 phba->fc_stat.LinkMultiEvent++; 3469 if (attn_type == LPFC_ATT_LINK_UP) 3470 if (phba->fc_eventTag != 0) 3471 lpfc_linkdown(phba); 3472 } 3473 3474 phba->fc_eventTag = la->eventTag; 3475 if (phba->sli_rev < LPFC_SLI_REV4) { 3476 spin_lock_irqsave(&phba->hbalock, iflags); 3477 if (bf_get(lpfc_mbx_read_top_mm, la)) 3478 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3479 else 3480 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3481 spin_unlock_irqrestore(&phba->hbalock, iflags); 3482 } 3483 3484 phba->link_events++; 3485 if ((attn_type == LPFC_ATT_LINK_UP) && 3486 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3487 phba->fc_stat.LinkUp++; 3488 if (phba->link_flag & LS_LOOPBACK_MODE) { 3489 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3490 "1306 Link Up Event in loop back mode " 3491 "x%x received Data: x%x x%x x%x x%x\n", 3492 la->eventTag, phba->fc_eventTag, 3493 bf_get(lpfc_mbx_read_top_alpa_granted, 3494 la), 3495 bf_get(lpfc_mbx_read_top_link_spd, la), 3496 phba->alpa_map[0]); 3497 } else { 3498 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3499 "1303 Link Up Event x%x received " 3500 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3501 la->eventTag, phba->fc_eventTag, 3502 bf_get(lpfc_mbx_read_top_alpa_granted, 3503 la), 3504 bf_get(lpfc_mbx_read_top_link_spd, la), 3505 phba->alpa_map[0], 3506 bf_get(lpfc_mbx_read_top_mm, la), 3507 bf_get(lpfc_mbx_read_top_fa, la), 3508 phba->wait_4_mlo_maint_flg); 3509 } 3510 lpfc_mbx_process_link_up(phba, la); 3511 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3512 attn_type == LPFC_ATT_UNEXP_WWPN) { 3513 phba->fc_stat.LinkDown++; 3514 if (phba->link_flag & LS_LOOPBACK_MODE) 3515 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3516 "1308 Link Down Event in loop back mode " 3517 "x%x received " 3518 "Data: x%x x%x x%x\n", 3519 la->eventTag, phba->fc_eventTag, 3520 phba->pport->port_state, vport->fc_flag); 3521 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3522 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3523 "1313 Link Down Unexpected FA WWPN Event x%x " 3524 "received Data: x%x x%x x%x x%x x%x\n", 3525 la->eventTag, phba->fc_eventTag, 3526 phba->pport->port_state, vport->fc_flag, 3527 bf_get(lpfc_mbx_read_top_mm, la), 3528 bf_get(lpfc_mbx_read_top_fa, la)); 3529 else 3530 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3531 "1305 Link Down Event x%x received " 3532 "Data: x%x x%x x%x x%x x%x\n", 3533 la->eventTag, phba->fc_eventTag, 3534 phba->pport->port_state, vport->fc_flag, 3535 bf_get(lpfc_mbx_read_top_mm, la), 3536 bf_get(lpfc_mbx_read_top_fa, la)); 3537 lpfc_mbx_issue_link_down(phba); 3538 } 3539 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3540 attn_type == LPFC_ATT_LINK_UP) { 3541 if (phba->link_state != LPFC_LINK_DOWN) { 3542 phba->fc_stat.LinkDown++; 3543 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3544 "1312 Link Down Event x%x received " 3545 "Data: x%x x%x x%x\n", 3546 la->eventTag, phba->fc_eventTag, 3547 phba->pport->port_state, vport->fc_flag); 3548 lpfc_mbx_issue_link_down(phba); 3549 } else 3550 lpfc_enable_la(phba); 3551 3552 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3553 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3554 "Data: x%x x%x x%x\n", 3555 la->eventTag, phba->fc_eventTag, 3556 phba->pport->port_state, vport->fc_flag); 3557 /* 3558 * The cmnd that triggered this will be waiting for this 3559 * signal. 3560 */ 3561 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3562 if (phba->wait_4_mlo_maint_flg) { 3563 phba->wait_4_mlo_maint_flg = 0; 3564 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3565 } 3566 } 3567 3568 if ((phba->sli_rev < LPFC_SLI_REV4) && 3569 bf_get(lpfc_mbx_read_top_fa, la)) { 3570 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3571 lpfc_issue_clear_la(phba, vport); 3572 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3573 "1311 fa %d\n", 3574 bf_get(lpfc_mbx_read_top_fa, la)); 3575 } 3576 3577lpfc_mbx_cmpl_read_topology_free_mbuf: 3578 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3579 kfree(mp); 3580 mempool_free(pmb, phba->mbox_mem_pool); 3581 return; 3582} 3583 3584/* 3585 * This routine handles processing a REG_LOGIN mailbox 3586 * command upon completion. It is setup in the LPFC_MBOXQ 3587 * as the completion routine when the command is 3588 * handed off to the SLI layer. 3589 */ 3590void 3591lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3592{ 3593 struct lpfc_vport *vport = pmb->vport; 3594 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3595 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3596 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3597 3598 pmb->ctx_buf = NULL; 3599 pmb->ctx_ndlp = NULL; 3600 3601 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3602 "0002 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 3603 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3604 kref_read(&ndlp->kref), 3605 ndlp->nlp_usg_map, ndlp); 3606 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3607 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3608 3609 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3610 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3611 /* We rcvd a rscn after issuing this 3612 * mbox reg login, we may have cycled 3613 * back through the state and be 3614 * back at reg login state so this 3615 * mbox needs to be ignored becase 3616 * there is another reg login in 3617 * process. 3618 */ 3619 spin_lock_irq(shost->host_lock); 3620 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3621 spin_unlock_irq(shost->host_lock); 3622 3623 /* 3624 * We cannot leave the RPI registered because 3625 * if we go thru discovery again for this ndlp 3626 * a subsequent REG_RPI will fail. 3627 */ 3628 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3629 lpfc_unreg_rpi(vport, ndlp); 3630 } 3631 3632 /* Call state machine */ 3633 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3634 3635 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3636 kfree(mp); 3637 mempool_free(pmb, phba->mbox_mem_pool); 3638 /* decrement the node reference count held for this callback 3639 * function. 3640 */ 3641 lpfc_nlp_put(ndlp); 3642 3643 return; 3644} 3645 3646static void 3647lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3648{ 3649 MAILBOX_t *mb = &pmb->u.mb; 3650 struct lpfc_vport *vport = pmb->vport; 3651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3652 3653 switch (mb->mbxStatus) { 3654 case 0x0011: 3655 case 0x0020: 3656 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3657 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3658 mb->mbxStatus); 3659 break; 3660 /* If VPI is busy, reset the HBA */ 3661 case 0x9700: 3662 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3663 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3664 vport->vpi, mb->mbxStatus); 3665 if (!(phba->pport->load_flag & FC_UNLOADING)) 3666 lpfc_workq_post_event(phba, NULL, NULL, 3667 LPFC_EVT_RESET_HBA); 3668 } 3669 spin_lock_irq(shost->host_lock); 3670 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3671 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3672 spin_unlock_irq(shost->host_lock); 3673 vport->unreg_vpi_cmpl = VPORT_OK; 3674 mempool_free(pmb, phba->mbox_mem_pool); 3675 lpfc_cleanup_vports_rrqs(vport, NULL); 3676 /* 3677 * This shost reference might have been taken at the beginning of 3678 * lpfc_vport_delete() 3679 */ 3680 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3681 scsi_host_put(shost); 3682} 3683 3684int 3685lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3686{ 3687 struct lpfc_hba *phba = vport->phba; 3688 LPFC_MBOXQ_t *mbox; 3689 int rc; 3690 3691 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3692 if (!mbox) 3693 return 1; 3694 3695 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3696 mbox->vport = vport; 3697 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3698 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3699 if (rc == MBX_NOT_FINISHED) { 3700 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3701 "1800 Could not issue unreg_vpi\n"); 3702 mempool_free(mbox, phba->mbox_mem_pool); 3703 vport->unreg_vpi_cmpl = VPORT_ERROR; 3704 return rc; 3705 } 3706 return 0; 3707} 3708 3709static void 3710lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3711{ 3712 struct lpfc_vport *vport = pmb->vport; 3713 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3714 MAILBOX_t *mb = &pmb->u.mb; 3715 3716 switch (mb->mbxStatus) { 3717 case 0x0011: 3718 case 0x9601: 3719 case 0x9602: 3720 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3721 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3722 mb->mbxStatus); 3723 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3724 spin_lock_irq(shost->host_lock); 3725 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3726 spin_unlock_irq(shost->host_lock); 3727 vport->fc_myDID = 0; 3728 3729 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3730 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3731 if (phba->nvmet_support) 3732 lpfc_nvmet_update_targetport(phba); 3733 else 3734 lpfc_nvme_update_localport(vport); 3735 } 3736 goto out; 3737 } 3738 3739 spin_lock_irq(shost->host_lock); 3740 vport->vpi_state |= LPFC_VPI_REGISTERED; 3741 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3742 spin_unlock_irq(shost->host_lock); 3743 vport->num_disc_nodes = 0; 3744 /* go thru NPR list and issue ELS PLOGIs */ 3745 if (vport->fc_npr_cnt) 3746 lpfc_els_disc_plogi(vport); 3747 3748 if (!vport->num_disc_nodes) { 3749 spin_lock_irq(shost->host_lock); 3750 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3751 spin_unlock_irq(shost->host_lock); 3752 lpfc_can_disctmo(vport); 3753 } 3754 vport->port_state = LPFC_VPORT_READY; 3755 3756out: 3757 mempool_free(pmb, phba->mbox_mem_pool); 3758 return; 3759} 3760 3761/** 3762 * lpfc_create_static_vport - Read HBA config region to create static vports. 3763 * @phba: pointer to lpfc hba data structure. 3764 * 3765 * This routine issue a DUMP mailbox command for config region 22 to get 3766 * the list of static vports to be created. The function create vports 3767 * based on the information returned from the HBA. 3768 **/ 3769void 3770lpfc_create_static_vport(struct lpfc_hba *phba) 3771{ 3772 LPFC_MBOXQ_t *pmb = NULL; 3773 MAILBOX_t *mb; 3774 struct static_vport_info *vport_info; 3775 int mbx_wait_rc = 0, i; 3776 struct fc_vport_identifiers vport_id; 3777 struct fc_vport *new_fc_vport; 3778 struct Scsi_Host *shost; 3779 struct lpfc_vport *vport; 3780 uint16_t offset = 0; 3781 uint8_t *vport_buff; 3782 struct lpfc_dmabuf *mp; 3783 uint32_t byte_count = 0; 3784 3785 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3786 if (!pmb) { 3787 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 3788 "0542 lpfc_create_static_vport failed to" 3789 " allocate mailbox memory\n"); 3790 return; 3791 } 3792 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3793 mb = &pmb->u.mb; 3794 3795 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3796 if (!vport_info) { 3797 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 3798 "0543 lpfc_create_static_vport failed to" 3799 " allocate vport_info\n"); 3800 mempool_free(pmb, phba->mbox_mem_pool); 3801 return; 3802 } 3803 3804 vport_buff = (uint8_t *) vport_info; 3805 do { 3806 /* free dma buffer from previous round */ 3807 if (pmb->ctx_buf) { 3808 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3809 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3810 kfree(mp); 3811 } 3812 if (lpfc_dump_static_vport(phba, pmb, offset)) 3813 goto out; 3814 3815 pmb->vport = phba->pport; 3816 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3817 LPFC_MBOX_TMO); 3818 3819 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3820 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3821 "0544 lpfc_create_static_vport failed to" 3822 " issue dump mailbox command ret 0x%x " 3823 "status 0x%x\n", 3824 mbx_wait_rc, mb->mbxStatus); 3825 goto out; 3826 } 3827 3828 if (phba->sli_rev == LPFC_SLI_REV4) { 3829 byte_count = pmb->u.mqe.un.mb_words[5]; 3830 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3831 if (byte_count > sizeof(struct static_vport_info) - 3832 offset) 3833 byte_count = sizeof(struct static_vport_info) 3834 - offset; 3835 memcpy(vport_buff + offset, mp->virt, byte_count); 3836 offset += byte_count; 3837 } else { 3838 if (mb->un.varDmp.word_cnt > 3839 sizeof(struct static_vport_info) - offset) 3840 mb->un.varDmp.word_cnt = 3841 sizeof(struct static_vport_info) 3842 - offset; 3843 byte_count = mb->un.varDmp.word_cnt; 3844 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3845 vport_buff + offset, 3846 byte_count); 3847 3848 offset += byte_count; 3849 } 3850 3851 } while (byte_count && 3852 offset < sizeof(struct static_vport_info)); 3853 3854 3855 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3856 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3857 != VPORT_INFO_REV)) { 3858 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 3859 "0545 lpfc_create_static_vport bad" 3860 " information header 0x%x 0x%x\n", 3861 le32_to_cpu(vport_info->signature), 3862 le32_to_cpu(vport_info->rev) & 3863 VPORT_INFO_REV_MASK); 3864 3865 goto out; 3866 } 3867 3868 shost = lpfc_shost_from_vport(phba->pport); 3869 3870 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3871 memset(&vport_id, 0, sizeof(vport_id)); 3872 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3873 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3874 if (!vport_id.port_name || !vport_id.node_name) 3875 continue; 3876 3877 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3878 vport_id.vport_type = FC_PORTTYPE_NPIV; 3879 vport_id.disable = false; 3880 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3881 3882 if (!new_fc_vport) { 3883 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3884 "0546 lpfc_create_static_vport failed to" 3885 " create vport\n"); 3886 continue; 3887 } 3888 3889 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3890 vport->vport_flag |= STATIC_VPORT; 3891 } 3892 3893out: 3894 kfree(vport_info); 3895 if (mbx_wait_rc != MBX_TIMEOUT) { 3896 if (pmb->ctx_buf) { 3897 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3898 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3899 kfree(mp); 3900 } 3901 mempool_free(pmb, phba->mbox_mem_pool); 3902 } 3903 3904 return; 3905} 3906 3907/* 3908 * This routine handles processing a Fabric REG_LOGIN mailbox 3909 * command upon completion. It is setup in the LPFC_MBOXQ 3910 * as the completion routine when the command is 3911 * handed off to the SLI layer. 3912 */ 3913void 3914lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3915{ 3916 struct lpfc_vport *vport = pmb->vport; 3917 MAILBOX_t *mb = &pmb->u.mb; 3918 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3919 struct lpfc_nodelist *ndlp; 3920 struct Scsi_Host *shost; 3921 3922 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3923 pmb->ctx_ndlp = NULL; 3924 pmb->ctx_buf = NULL; 3925 3926 if (mb->mbxStatus) { 3927 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3928 "0258 Register Fabric login error: 0x%x\n", 3929 mb->mbxStatus); 3930 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3931 kfree(mp); 3932 mempool_free(pmb, phba->mbox_mem_pool); 3933 3934 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3935 /* FLOGI failed, use loop map to make discovery list */ 3936 lpfc_disc_list_loopmap(vport); 3937 3938 /* Start discovery */ 3939 lpfc_disc_start(vport); 3940 /* Decrement the reference count to ndlp after the 3941 * reference to the ndlp are done. 3942 */ 3943 lpfc_nlp_put(ndlp); 3944 return; 3945 } 3946 3947 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3948 /* Decrement the reference count to ndlp after the reference 3949 * to the ndlp are done. 3950 */ 3951 lpfc_nlp_put(ndlp); 3952 return; 3953 } 3954 3955 if (phba->sli_rev < LPFC_SLI_REV4) 3956 ndlp->nlp_rpi = mb->un.varWords[0]; 3957 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3958 ndlp->nlp_type |= NLP_FABRIC; 3959 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3960 3961 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3962 /* when physical port receive logo donot start 3963 * vport discovery */ 3964 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3965 lpfc_start_fdiscs(phba); 3966 else { 3967 shost = lpfc_shost_from_vport(vport); 3968 spin_lock_irq(shost->host_lock); 3969 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3970 spin_unlock_irq(shost->host_lock); 3971 } 3972 lpfc_do_scr_ns_plogi(phba, vport); 3973 } 3974 3975 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3976 kfree(mp); 3977 mempool_free(pmb, phba->mbox_mem_pool); 3978 3979 /* Drop the reference count from the mbox at the end after 3980 * all the current reference to the ndlp have been done. 3981 */ 3982 lpfc_nlp_put(ndlp); 3983 return; 3984} 3985 3986 /* 3987 * This routine will issue a GID_FT for each FC4 Type supported 3988 * by the driver. ALL GID_FTs must complete before discovery is started. 3989 */ 3990int 3991lpfc_issue_gidft(struct lpfc_vport *vport) 3992{ 3993 /* Good status, issue CT Request to NameServer */ 3994 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3995 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3996 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3997 /* Cannot issue NameServer FCP Query, so finish up 3998 * discovery 3999 */ 4000 lpfc_printf_vlog(vport, KERN_ERR, 4001 LOG_TRACE_EVENT, 4002 "0604 %s FC TYPE %x %s\n", 4003 "Failed to issue GID_FT to ", 4004 FC_TYPE_FCP, 4005 "Finishing discovery."); 4006 return 0; 4007 } 4008 vport->gidft_inp++; 4009 } 4010 4011 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4012 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 4013 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 4014 /* Cannot issue NameServer NVME Query, so finish up 4015 * discovery 4016 */ 4017 lpfc_printf_vlog(vport, KERN_ERR, 4018 LOG_TRACE_EVENT, 4019 "0605 %s FC_TYPE %x %s %d\n", 4020 "Failed to issue GID_FT to ", 4021 FC_TYPE_NVME, 4022 "Finishing discovery: gidftinp ", 4023 vport->gidft_inp); 4024 if (vport->gidft_inp == 0) 4025 return 0; 4026 } else 4027 vport->gidft_inp++; 4028 } 4029 return vport->gidft_inp; 4030} 4031 4032/** 4033 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 4034 * @vport: The virtual port for which this call is being executed. 4035 * 4036 * This routine will issue a GID_PT to get a list of all N_Ports 4037 * 4038 * Return value : 4039 * 0 - Failure to issue a GID_PT 4040 * 1 - GID_PT issued 4041 **/ 4042int 4043lpfc_issue_gidpt(struct lpfc_vport *vport) 4044{ 4045 /* Good status, issue CT Request to NameServer */ 4046 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4047 /* Cannot issue NameServer FCP Query, so finish up 4048 * discovery 4049 */ 4050 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4051 "0606 %s Port TYPE %x %s\n", 4052 "Failed to issue GID_PT to ", 4053 GID_PT_N_PORT, 4054 "Finishing discovery."); 4055 return 0; 4056 } 4057 vport->gidft_inp++; 4058 return 1; 4059} 4060 4061/* 4062 * This routine handles processing a NameServer REG_LOGIN mailbox 4063 * command upon completion. It is setup in the LPFC_MBOXQ 4064 * as the completion routine when the command is 4065 * handed off to the SLI layer. 4066 */ 4067void 4068lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4069{ 4070 MAILBOX_t *mb = &pmb->u.mb; 4071 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4072 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4073 struct lpfc_vport *vport = pmb->vport; 4074 4075 pmb->ctx_buf = NULL; 4076 pmb->ctx_ndlp = NULL; 4077 vport->gidft_inp = 0; 4078 4079 if (mb->mbxStatus) { 4080 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4081 "0260 Register NameServer error: 0x%x\n", 4082 mb->mbxStatus); 4083 4084out: 4085 /* decrement the node reference count held for this 4086 * callback function. 4087 */ 4088 lpfc_nlp_put(ndlp); 4089 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4090 kfree(mp); 4091 mempool_free(pmb, phba->mbox_mem_pool); 4092 4093 /* If no other thread is using the ndlp, free it */ 4094 lpfc_nlp_not_used(ndlp); 4095 4096 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4097 /* 4098 * RegLogin failed, use loop map to make discovery 4099 * list 4100 */ 4101 lpfc_disc_list_loopmap(vport); 4102 4103 /* Start discovery */ 4104 lpfc_disc_start(vport); 4105 return; 4106 } 4107 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4108 return; 4109 } 4110 4111 if (phba->sli_rev < LPFC_SLI_REV4) 4112 ndlp->nlp_rpi = mb->un.varWords[0]; 4113 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4114 ndlp->nlp_type |= NLP_FABRIC; 4115 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4116 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4117 "0003 rpi:%x DID:%x flg:%x %d map%x x%px\n", 4118 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4119 kref_read(&ndlp->kref), 4120 ndlp->nlp_usg_map, ndlp); 4121 4122 if (vport->port_state < LPFC_VPORT_READY) { 4123 /* Link up discovery requires Fabric registration. */ 4124 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4125 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4126 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4127 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4128 4129 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4130 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4131 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4132 4133 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4134 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4135 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4136 FC_TYPE_NVME); 4137 4138 /* Issue SCR just before NameServer GID_FT Query */ 4139 lpfc_issue_els_scr(vport, 0); 4140 4141 lpfc_issue_els_rdf(vport, 0); 4142 } 4143 4144 vport->fc_ns_retry = 0; 4145 if (lpfc_issue_gidft(vport) == 0) 4146 goto out; 4147 4148 /* 4149 * At this point in time we may need to wait for multiple 4150 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4151 * 4152 * decrement the node reference count held for this 4153 * callback function. 4154 */ 4155 lpfc_nlp_put(ndlp); 4156 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4157 kfree(mp); 4158 mempool_free(pmb, phba->mbox_mem_pool); 4159 4160 return; 4161} 4162 4163static void 4164lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4165{ 4166 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4167 struct fc_rport *rport; 4168 struct lpfc_rport_data *rdata; 4169 struct fc_rport_identifiers rport_ids; 4170 struct lpfc_hba *phba = vport->phba; 4171 4172 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4173 return; 4174 4175 /* Remote port has reappeared. Re-register w/ FC transport */ 4176 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4177 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4178 rport_ids.port_id = ndlp->nlp_DID; 4179 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4180 4181 /* 4182 * We leave our node pointer in rport->dd_data when we unregister a 4183 * FCP target port. But fc_remote_port_add zeros the space to which 4184 * rport->dd_data points. So, if we're reusing a previously 4185 * registered port, drop the reference that we took the last time we 4186 * registered the port. 4187 */ 4188 rport = ndlp->rport; 4189 if (rport) { 4190 rdata = rport->dd_data; 4191 /* break the link before dropping the ref */ 4192 ndlp->rport = NULL; 4193 if (rdata) { 4194 if (rdata->pnode == ndlp) 4195 lpfc_nlp_put(ndlp); 4196 rdata->pnode = NULL; 4197 } 4198 /* drop reference for earlier registeration */ 4199 put_device(&rport->dev); 4200 } 4201 4202 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4203 "rport add: did:x%x flg:x%x type x%x", 4204 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4205 4206 /* Don't add the remote port if unloading. */ 4207 if (vport->load_flag & FC_UNLOADING) 4208 return; 4209 4210 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4211 if (!rport || !get_device(&rport->dev)) { 4212 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4213 "Warning: fc_remote_port_add failed\n"); 4214 return; 4215 } 4216 4217 /* initialize static port data */ 4218 rport->maxframe_size = ndlp->nlp_maxframe; 4219 rport->supported_classes = ndlp->nlp_class_sup; 4220 rdata = rport->dd_data; 4221 rdata->pnode = lpfc_nlp_get(ndlp); 4222 4223 if (ndlp->nlp_type & NLP_FCP_TARGET) 4224 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4225 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4226 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4227 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4228 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4229 if (ndlp->nlp_type & NLP_NVME_TARGET) 4230 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4231 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4232 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4233 4234 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4235 fc_remote_port_rolechg(rport, rport_ids.roles); 4236 4237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4238 "3183 rport register x%06x, rport x%px role x%x\n", 4239 ndlp->nlp_DID, rport, rport_ids.roles); 4240 4241 if ((rport->scsi_target_id != -1) && 4242 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4243 ndlp->nlp_sid = rport->scsi_target_id; 4244 } 4245 return; 4246} 4247 4248static void 4249lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4250{ 4251 struct fc_rport *rport = ndlp->rport; 4252 struct lpfc_vport *vport = ndlp->vport; 4253 4254 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4255 return; 4256 4257 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4258 "rport delete: did:x%x flg:x%x type x%x", 4259 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4260 4261 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4262 "3184 rport unregister x%06x, rport x%px\n", 4263 ndlp->nlp_DID, rport); 4264 4265 fc_remote_port_delete(rport); 4266 4267 return; 4268} 4269 4270static void 4271lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4272{ 4273 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4274 unsigned long iflags; 4275 4276 spin_lock_irqsave(shost->host_lock, iflags); 4277 switch (state) { 4278 case NLP_STE_UNUSED_NODE: 4279 vport->fc_unused_cnt += count; 4280 break; 4281 case NLP_STE_PLOGI_ISSUE: 4282 vport->fc_plogi_cnt += count; 4283 break; 4284 case NLP_STE_ADISC_ISSUE: 4285 vport->fc_adisc_cnt += count; 4286 break; 4287 case NLP_STE_REG_LOGIN_ISSUE: 4288 vport->fc_reglogin_cnt += count; 4289 break; 4290 case NLP_STE_PRLI_ISSUE: 4291 vport->fc_prli_cnt += count; 4292 break; 4293 case NLP_STE_UNMAPPED_NODE: 4294 vport->fc_unmap_cnt += count; 4295 break; 4296 case NLP_STE_MAPPED_NODE: 4297 vport->fc_map_cnt += count; 4298 break; 4299 case NLP_STE_NPR_NODE: 4300 if (vport->fc_npr_cnt == 0 && count == -1) 4301 vport->fc_npr_cnt = 0; 4302 else 4303 vport->fc_npr_cnt += count; 4304 break; 4305 } 4306 spin_unlock_irqrestore(shost->host_lock, iflags); 4307} 4308 4309static void 4310lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4311 int old_state, int new_state) 4312{ 4313 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4314 4315 if (new_state == NLP_STE_UNMAPPED_NODE) { 4316 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4317 ndlp->nlp_type |= NLP_FC_NODE; 4318 } 4319 if (new_state == NLP_STE_MAPPED_NODE) 4320 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4321 if (new_state == NLP_STE_NPR_NODE) 4322 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4323 4324 /* FCP and NVME Transport interface */ 4325 if ((old_state == NLP_STE_MAPPED_NODE || 4326 old_state == NLP_STE_UNMAPPED_NODE)) { 4327 if (ndlp->rport) { 4328 vport->phba->nport_event_cnt++; 4329 lpfc_unregister_remote_port(ndlp); 4330 } 4331 4332 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4333 vport->phba->nport_event_cnt++; 4334 if (vport->phba->nvmet_support == 0) { 4335 /* Start devloss if target. */ 4336 if (ndlp->nlp_type & NLP_NVME_TARGET) 4337 lpfc_nvme_unregister_port(vport, ndlp); 4338 } else { 4339 /* NVMET has no upcall. */ 4340 lpfc_nlp_put(ndlp); 4341 } 4342 } 4343 } 4344 4345 /* FCP and NVME Transport interfaces */ 4346 4347 if (new_state == NLP_STE_MAPPED_NODE || 4348 new_state == NLP_STE_UNMAPPED_NODE) { 4349 if (ndlp->nlp_fc4_type || 4350 ndlp->nlp_DID == Fabric_DID || 4351 ndlp->nlp_DID == NameServer_DID || 4352 ndlp->nlp_DID == FDMI_DID) { 4353 vport->phba->nport_event_cnt++; 4354 /* 4355 * Tell the fc transport about the port, if we haven't 4356 * already. If we have, and it's a scsi entity, be 4357 */ 4358 lpfc_register_remote_port(vport, ndlp); 4359 } 4360 /* Notify the NVME transport of this new rport. */ 4361 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4362 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4363 if (vport->phba->nvmet_support == 0) { 4364 /* Register this rport with the transport. 4365 * Only NVME Target Rports are registered with 4366 * the transport. 4367 */ 4368 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4369 vport->phba->nport_event_cnt++; 4370 lpfc_nvme_register_port(vport, ndlp); 4371 } 4372 } else { 4373 /* Just take an NDLP ref count since the 4374 * target does not register rports. 4375 */ 4376 lpfc_nlp_get(ndlp); 4377 } 4378 } 4379 } 4380 4381 if ((new_state == NLP_STE_MAPPED_NODE) && 4382 (vport->stat_data_enabled)) { 4383 /* 4384 * A new target is discovered, if there is no buffer for 4385 * statistical data collection allocate buffer. 4386 */ 4387 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4388 sizeof(struct lpfc_scsicmd_bkt), 4389 GFP_KERNEL); 4390 4391 if (!ndlp->lat_data) 4392 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4393 "0286 lpfc_nlp_state_cleanup failed to " 4394 "allocate statistical data buffer DID " 4395 "0x%x\n", ndlp->nlp_DID); 4396 } 4397 /* 4398 * If the node just added to Mapped list was an FCP target, 4399 * but the remote port registration failed or assigned a target 4400 * id outside the presentable range - move the node to the 4401 * Unmapped List. 4402 */ 4403 if ((new_state == NLP_STE_MAPPED_NODE) && 4404 (ndlp->nlp_type & NLP_FCP_TARGET) && 4405 (!ndlp->rport || 4406 ndlp->rport->scsi_target_id == -1 || 4407 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4408 spin_lock_irq(shost->host_lock); 4409 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4410 spin_unlock_irq(shost->host_lock); 4411 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4412 } 4413} 4414 4415static char * 4416lpfc_nlp_state_name(char *buffer, size_t size, int state) 4417{ 4418 static char *states[] = { 4419 [NLP_STE_UNUSED_NODE] = "UNUSED", 4420 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4421 [NLP_STE_ADISC_ISSUE] = "ADISC", 4422 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4423 [NLP_STE_PRLI_ISSUE] = "PRLI", 4424 [NLP_STE_LOGO_ISSUE] = "LOGO", 4425 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4426 [NLP_STE_MAPPED_NODE] = "MAPPED", 4427 [NLP_STE_NPR_NODE] = "NPR", 4428 }; 4429 4430 if (state < NLP_STE_MAX_STATE && states[state]) 4431 strlcpy(buffer, states[state], size); 4432 else 4433 snprintf(buffer, size, "unknown (%d)", state); 4434 return buffer; 4435} 4436 4437void 4438lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4439 int state) 4440{ 4441 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4442 int old_state = ndlp->nlp_state; 4443 char name1[16], name2[16]; 4444 4445 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4446 "0904 NPort state transition x%06x, %s -> %s\n", 4447 ndlp->nlp_DID, 4448 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4449 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4450 4451 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4452 "node statechg did:x%x old:%d ste:%d", 4453 ndlp->nlp_DID, old_state, state); 4454 4455 if (old_state == NLP_STE_NPR_NODE && 4456 state != NLP_STE_NPR_NODE) 4457 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4458 if (old_state == NLP_STE_UNMAPPED_NODE) { 4459 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4460 ndlp->nlp_type &= ~NLP_FC_NODE; 4461 } 4462 4463 if (list_empty(&ndlp->nlp_listp)) { 4464 spin_lock_irq(shost->host_lock); 4465 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4466 spin_unlock_irq(shost->host_lock); 4467 } else if (old_state) 4468 lpfc_nlp_counters(vport, old_state, -1); 4469 4470 ndlp->nlp_state = state; 4471 lpfc_nlp_counters(vport, state, 1); 4472 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4473} 4474 4475void 4476lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4477{ 4478 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4479 4480 if (list_empty(&ndlp->nlp_listp)) { 4481 spin_lock_irq(shost->host_lock); 4482 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4483 spin_unlock_irq(shost->host_lock); 4484 } 4485} 4486 4487void 4488lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4489{ 4490 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4491 4492 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4493 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4494 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4495 spin_lock_irq(shost->host_lock); 4496 list_del_init(&ndlp->nlp_listp); 4497 spin_unlock_irq(shost->host_lock); 4498 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4499 NLP_STE_UNUSED_NODE); 4500} 4501 4502static void 4503lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4504{ 4505 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4506 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4507 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4508 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4509 NLP_STE_UNUSED_NODE); 4510} 4511/** 4512 * lpfc_initialize_node - Initialize all fields of node object 4513 * @vport: Pointer to Virtual Port object. 4514 * @ndlp: Pointer to FC node object. 4515 * @did: FC_ID of the node. 4516 * 4517 * This function is always called when node object need to be initialized. 4518 * It initializes all the fields of the node object. Although the reference 4519 * to phba from @ndlp can be obtained indirectly through it's reference to 4520 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4521 * to the life-span of the @ndlp might go beyond the existence of @vport as 4522 * the final release of ndlp is determined by its reference count. And, the 4523 * operation on @ndlp needs the reference to phba. 4524 **/ 4525static inline void 4526lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4527 uint32_t did) 4528{ 4529 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4530 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4531 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4532 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp); 4533 4534 ndlp->nlp_DID = did; 4535 ndlp->vport = vport; 4536 ndlp->phba = vport->phba; 4537 ndlp->nlp_sid = NLP_NO_SID; 4538 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4539 kref_init(&ndlp->kref); 4540 NLP_INT_NODE_ACT(ndlp); 4541 atomic_set(&ndlp->cmd_pending, 0); 4542 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4543 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4544} 4545 4546struct lpfc_nodelist * 4547lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4548 int state) 4549{ 4550 struct lpfc_hba *phba = vport->phba; 4551 uint32_t did, flag; 4552 unsigned long flags; 4553 unsigned long *active_rrqs_xri_bitmap = NULL; 4554 int rpi = LPFC_RPI_ALLOC_ERROR; 4555 uint32_t defer_did = 0; 4556 4557 if (!ndlp) 4558 return NULL; 4559 4560 if (phba->sli_rev == LPFC_SLI_REV4) { 4561 if (ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR) 4562 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4563 else 4564 rpi = ndlp->nlp_rpi; 4565 4566 if (rpi == LPFC_RPI_ALLOC_ERROR) { 4567 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4568 "0359 %s: ndlp:x%px " 4569 "usgmap:x%x refcnt:%d FAILED RPI " 4570 " ALLOC\n", 4571 __func__, 4572 (void *)ndlp, ndlp->nlp_usg_map, 4573 kref_read(&ndlp->kref)); 4574 return NULL; 4575 } 4576 } 4577 4578 spin_lock_irqsave(&phba->ndlp_lock, flags); 4579 /* The ndlp should not be in memory free mode */ 4580 if (NLP_CHK_FREE_REQ(ndlp)) { 4581 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4582 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4583 "0277 %s: ndlp:x%px " 4584 "usgmap:x%x refcnt:%d\n", 4585 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4586 kref_read(&ndlp->kref)); 4587 goto free_rpi; 4588 } 4589 /* The ndlp should not already be in active mode */ 4590 if (NLP_CHK_NODE_ACT(ndlp)) { 4591 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4592 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4593 "0278 %s: ndlp:x%px " 4594 "usgmap:x%x refcnt:%d\n", 4595 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4596 kref_read(&ndlp->kref)); 4597 goto free_rpi; 4598 } 4599 4600 /* First preserve the orginal DID, xri_bitmap and some flags */ 4601 did = ndlp->nlp_DID; 4602 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4603 if (flag & NLP_UNREG_INP) 4604 defer_did = ndlp->nlp_defer_did; 4605 if (phba->sli_rev == LPFC_SLI_REV4) 4606 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4607 4608 /* Zero ndlp except of ndlp linked list pointer */ 4609 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4610 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4611 4612 /* Next reinitialize and restore saved objects */ 4613 lpfc_initialize_node(vport, ndlp, did); 4614 ndlp->nlp_flag |= flag; 4615 if (flag & NLP_UNREG_INP) 4616 ndlp->nlp_defer_did = defer_did; 4617 if (phba->sli_rev == LPFC_SLI_REV4) 4618 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4619 4620 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4621 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4622 ndlp->nlp_rpi = rpi; 4623 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4624 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4625 "map:%x x%px\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4626 ndlp->nlp_flag, 4627 kref_read(&ndlp->kref), 4628 ndlp->nlp_usg_map, ndlp); 4629 } 4630 4631 4632 if (state != NLP_STE_UNUSED_NODE) 4633 lpfc_nlp_set_state(vport, ndlp, state); 4634 else 4635 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4636 "0013 rpi:%x DID:%x flg:%x refcnt:%d " 4637 "map:%x x%px STATE=UNUSED\n", 4638 ndlp->nlp_rpi, ndlp->nlp_DID, 4639 ndlp->nlp_flag, 4640 kref_read(&ndlp->kref), 4641 ndlp->nlp_usg_map, ndlp); 4642 4643 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4644 "node enable: did:x%x", 4645 ndlp->nlp_DID, 0, 0); 4646 return ndlp; 4647 4648free_rpi: 4649 if (phba->sli_rev == LPFC_SLI_REV4) { 4650 lpfc_sli4_free_rpi(vport->phba, rpi); 4651 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4652 } 4653 return NULL; 4654} 4655 4656void 4657lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4658{ 4659 /* 4660 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4661 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4662 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4663 * until ALL other outstanding threads have completed. We check 4664 * that the ndlp not already in the UNUSED state before we proceed. 4665 */ 4666 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4667 return; 4668 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4669 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4670 lpfc_cleanup_vports_rrqs(vport, ndlp); 4671 lpfc_unreg_rpi(vport, ndlp); 4672 } 4673 4674 lpfc_nlp_put(ndlp); 4675 return; 4676} 4677 4678/* 4679 * Start / ReStart rescue timer for Discovery / RSCN handling 4680 */ 4681void 4682lpfc_set_disctmo(struct lpfc_vport *vport) 4683{ 4684 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4685 struct lpfc_hba *phba = vport->phba; 4686 uint32_t tmo; 4687 4688 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4689 /* For FAN, timeout should be greater than edtov */ 4690 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4691 } else { 4692 /* Normal discovery timeout should be > than ELS/CT timeout 4693 * FC spec states we need 3 * ratov for CT requests 4694 */ 4695 tmo = ((phba->fc_ratov * 3) + 3); 4696 } 4697 4698 4699 if (!timer_pending(&vport->fc_disctmo)) { 4700 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4701 "set disc timer: tmo:x%x state:x%x flg:x%x", 4702 tmo, vport->port_state, vport->fc_flag); 4703 } 4704 4705 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4706 spin_lock_irq(shost->host_lock); 4707 vport->fc_flag |= FC_DISC_TMO; 4708 spin_unlock_irq(shost->host_lock); 4709 4710 /* Start Discovery Timer state <hba_state> */ 4711 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4712 "0247 Start Discovery Timer state x%x " 4713 "Data: x%x x%lx x%x x%x\n", 4714 vport->port_state, tmo, 4715 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4716 vport->fc_adisc_cnt); 4717 4718 return; 4719} 4720 4721/* 4722 * Cancel rescue timer for Discovery / RSCN handling 4723 */ 4724int 4725lpfc_can_disctmo(struct lpfc_vport *vport) 4726{ 4727 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4728 unsigned long iflags; 4729 4730 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4731 "can disc timer: state:x%x rtry:x%x flg:x%x", 4732 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4733 4734 /* Turn off discovery timer if its running */ 4735 if (vport->fc_flag & FC_DISC_TMO) { 4736 spin_lock_irqsave(shost->host_lock, iflags); 4737 vport->fc_flag &= ~FC_DISC_TMO; 4738 spin_unlock_irqrestore(shost->host_lock, iflags); 4739 del_timer_sync(&vport->fc_disctmo); 4740 spin_lock_irqsave(&vport->work_port_lock, iflags); 4741 vport->work_port_events &= ~WORKER_DISC_TMO; 4742 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4743 } 4744 4745 /* Cancel Discovery Timer state <hba_state> */ 4746 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4747 "0248 Cancel Discovery Timer state x%x " 4748 "Data: x%x x%x x%x\n", 4749 vport->port_state, vport->fc_flag, 4750 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4751 return 0; 4752} 4753 4754/* 4755 * Check specified ring for outstanding IOCB on the SLI queue 4756 * Return true if iocb matches the specified nport 4757 */ 4758int 4759lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4760 struct lpfc_sli_ring *pring, 4761 struct lpfc_iocbq *iocb, 4762 struct lpfc_nodelist *ndlp) 4763{ 4764 IOCB_t *icmd = &iocb->iocb; 4765 struct lpfc_vport *vport = ndlp->vport; 4766 4767 if (iocb->vport != vport) 4768 return 0; 4769 4770 if (pring->ringno == LPFC_ELS_RING) { 4771 switch (icmd->ulpCommand) { 4772 case CMD_GEN_REQUEST64_CR: 4773 if (iocb->context_un.ndlp == ndlp) 4774 return 1; 4775 fallthrough; 4776 case CMD_ELS_REQUEST64_CR: 4777 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4778 return 1; 4779 fallthrough; 4780 case CMD_XMIT_ELS_RSP64_CX: 4781 if (iocb->context1 == (uint8_t *) ndlp) 4782 return 1; 4783 } 4784 } else if (pring->ringno == LPFC_FCP_RING) { 4785 /* Skip match check if waiting to relogin to FCP target */ 4786 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4787 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4788 return 0; 4789 } 4790 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4791 return 1; 4792 } 4793 } 4794 return 0; 4795} 4796 4797static void 4798__lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4799 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4800 struct list_head *dequeue_list) 4801{ 4802 struct lpfc_iocbq *iocb, *next_iocb; 4803 4804 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4805 /* Check to see if iocb matches the nport */ 4806 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4807 /* match, dequeue */ 4808 list_move_tail(&iocb->list, dequeue_list); 4809 } 4810} 4811 4812static void 4813lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4814 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4815{ 4816 struct lpfc_sli *psli = &phba->sli; 4817 uint32_t i; 4818 4819 spin_lock_irq(&phba->hbalock); 4820 for (i = 0; i < psli->num_rings; i++) 4821 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4822 dequeue_list); 4823 spin_unlock_irq(&phba->hbalock); 4824} 4825 4826static void 4827lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4828 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4829{ 4830 struct lpfc_sli_ring *pring; 4831 struct lpfc_queue *qp = NULL; 4832 4833 spin_lock_irq(&phba->hbalock); 4834 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4835 pring = qp->pring; 4836 if (!pring) 4837 continue; 4838 spin_lock(&pring->ring_lock); 4839 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4840 spin_unlock(&pring->ring_lock); 4841 } 4842 spin_unlock_irq(&phba->hbalock); 4843} 4844 4845/* 4846 * Free resources / clean up outstanding I/Os 4847 * associated with nlp_rpi in the LPFC_NODELIST entry. 4848 */ 4849static int 4850lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4851{ 4852 LIST_HEAD(completions); 4853 4854 lpfc_fabric_abort_nport(ndlp); 4855 4856 /* 4857 * Everything that matches on txcmplq will be returned 4858 * by firmware with a no rpi error. 4859 */ 4860 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4861 if (phba->sli_rev != LPFC_SLI_REV4) 4862 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4863 else 4864 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4865 } 4866 4867 /* Cancel all the IOCBs from the completions list */ 4868 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4869 IOERR_SLI_ABORTED); 4870 4871 return 0; 4872} 4873 4874/** 4875 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4876 * @phba: Pointer to HBA context object. 4877 * @pmb: Pointer to mailbox object. 4878 * 4879 * This function will issue an ELS LOGO command after completing 4880 * the UNREG_RPI. 4881 **/ 4882static void 4883lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4884{ 4885 struct lpfc_vport *vport = pmb->vport; 4886 struct lpfc_nodelist *ndlp; 4887 4888 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4889 if (!ndlp) 4890 return; 4891 lpfc_issue_els_logo(vport, ndlp, 0); 4892 mempool_free(pmb, phba->mbox_mem_pool); 4893 4894 /* Check to see if there are any deferred events to process */ 4895 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4896 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4897 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4898 "1434 UNREG cmpl deferred logo x%x " 4899 "on NPort x%x Data: x%x x%px\n", 4900 ndlp->nlp_rpi, ndlp->nlp_DID, 4901 ndlp->nlp_defer_did, ndlp); 4902 4903 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4904 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4905 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4906 } else { 4907 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 4908 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 4909 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 4910 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4911 } 4912 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4913 } 4914} 4915 4916/* 4917 * Sets the mailbox completion handler to be used for the 4918 * unreg_rpi command. The handler varies based on the state of 4919 * the port and what will be happening to the rpi next. 4920 */ 4921static void 4922lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 4923 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 4924{ 4925 unsigned long iflags; 4926 4927 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4928 mbox->ctx_ndlp = ndlp; 4929 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4930 4931 } else if (phba->sli_rev == LPFC_SLI_REV4 && 4932 (!(vport->load_flag & FC_UNLOADING)) && 4933 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 4934 LPFC_SLI_INTF_IF_TYPE_2) && 4935 (kref_read(&ndlp->kref) > 0)) { 4936 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4937 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 4938 } else { 4939 if (vport->load_flag & FC_UNLOADING) { 4940 if (phba->sli_rev == LPFC_SLI_REV4) { 4941 spin_lock_irqsave(&vport->phba->ndlp_lock, 4942 iflags); 4943 ndlp->nlp_flag |= NLP_RELEASE_RPI; 4944 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 4945 iflags); 4946 } 4947 lpfc_nlp_get(ndlp); 4948 } 4949 mbox->ctx_ndlp = ndlp; 4950 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4951 } 4952} 4953 4954/* 4955 * Free rpi associated with LPFC_NODELIST entry. 4956 * This routine is called from lpfc_freenode(), when we are removing 4957 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4958 * LOGO that completes successfully, and we are waiting to PLOGI back 4959 * to the remote NPort. In addition, it is called after we receive 4960 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4961 * we are waiting to PLOGI back to the remote NPort. 4962 */ 4963int 4964lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4965{ 4966 struct lpfc_hba *phba = vport->phba; 4967 LPFC_MBOXQ_t *mbox; 4968 int rc, acc_plogi = 1; 4969 uint16_t rpi; 4970 4971 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4972 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4973 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4974 lpfc_printf_vlog(vport, KERN_INFO, 4975 LOG_NODE | LOG_DISCOVERY, 4976 "3366 RPI x%x needs to be " 4977 "unregistered nlp_flag x%x " 4978 "did x%x\n", 4979 ndlp->nlp_rpi, ndlp->nlp_flag, 4980 ndlp->nlp_DID); 4981 4982 /* If there is already an UNREG in progress for this ndlp, 4983 * no need to queue up another one. 4984 */ 4985 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4986 lpfc_printf_vlog(vport, KERN_INFO, 4987 LOG_NODE | LOG_DISCOVERY, 4988 "1436 unreg_rpi SKIP UNREG x%x on " 4989 "NPort x%x deferred x%x flg x%x " 4990 "Data: x%px\n", 4991 ndlp->nlp_rpi, ndlp->nlp_DID, 4992 ndlp->nlp_defer_did, 4993 ndlp->nlp_flag, ndlp); 4994 goto out; 4995 } 4996 4997 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4998 if (mbox) { 4999 /* SLI4 ports require the physical rpi value. */ 5000 rpi = ndlp->nlp_rpi; 5001 if (phba->sli_rev == LPFC_SLI_REV4) 5002 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 5003 5004 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 5005 mbox->vport = vport; 5006 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 5007 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 5008 /* 5009 * accept PLOGIs after unreg_rpi_cmpl 5010 */ 5011 acc_plogi = 0; 5012 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 5013 Fabric_DID_MASK) && 5014 (!(vport->fc_flag & FC_OFFLINE_MODE))) 5015 ndlp->nlp_flag |= NLP_UNREG_INP; 5016 5017 lpfc_printf_vlog(vport, KERN_INFO, 5018 LOG_NODE | LOG_DISCOVERY, 5019 "1433 unreg_rpi UNREG x%x on " 5020 "NPort x%x deferred flg x%x " 5021 "Data:x%px\n", 5022 ndlp->nlp_rpi, ndlp->nlp_DID, 5023 ndlp->nlp_flag, ndlp); 5024 5025 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5026 if (rc == MBX_NOT_FINISHED) { 5027 mempool_free(mbox, phba->mbox_mem_pool); 5028 acc_plogi = 1; 5029 } 5030 } else { 5031 lpfc_printf_vlog(vport, KERN_INFO, 5032 LOG_NODE | LOG_DISCOVERY, 5033 "1444 Failed to allocate mempool " 5034 "unreg_rpi UNREG x%x, " 5035 "DID x%x, flag x%x, " 5036 "ndlp x%px\n", 5037 ndlp->nlp_rpi, ndlp->nlp_DID, 5038 ndlp->nlp_flag, ndlp); 5039 5040 /* Because mempool_alloc failed, we 5041 * will issue a LOGO here and keep the rpi alive if 5042 * not unloading. 5043 */ 5044 if (!(vport->load_flag & FC_UNLOADING)) { 5045 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5046 lpfc_issue_els_logo(vport, ndlp, 0); 5047 ndlp->nlp_prev_state = ndlp->nlp_state; 5048 lpfc_nlp_set_state(vport, ndlp, 5049 NLP_STE_NPR_NODE); 5050 } 5051 5052 return 1; 5053 } 5054 lpfc_no_rpi(phba, ndlp); 5055out: 5056 if (phba->sli_rev != LPFC_SLI_REV4) 5057 ndlp->nlp_rpi = 0; 5058 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 5059 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 5060 if (acc_plogi) 5061 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5062 return 1; 5063 } 5064 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5065 return 0; 5066} 5067 5068/** 5069 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 5070 * @phba: pointer to lpfc hba data structure. 5071 * 5072 * This routine is invoked to unregister all the currently registered RPIs 5073 * to the HBA. 5074 **/ 5075void 5076lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5077{ 5078 struct lpfc_vport **vports; 5079 struct lpfc_nodelist *ndlp; 5080 struct Scsi_Host *shost; 5081 int i; 5082 5083 vports = lpfc_create_vport_work_array(phba); 5084 if (!vports) { 5085 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5086 "2884 Vport array allocation failed \n"); 5087 return; 5088 } 5089 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5090 shost = lpfc_shost_from_vport(vports[i]); 5091 spin_lock_irq(shost->host_lock); 5092 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5093 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5094 /* The mempool_alloc might sleep */ 5095 spin_unlock_irq(shost->host_lock); 5096 lpfc_unreg_rpi(vports[i], ndlp); 5097 spin_lock_irq(shost->host_lock); 5098 } 5099 } 5100 spin_unlock_irq(shost->host_lock); 5101 } 5102 lpfc_destroy_vport_work_array(phba, vports); 5103} 5104 5105void 5106lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5107{ 5108 struct lpfc_hba *phba = vport->phba; 5109 LPFC_MBOXQ_t *mbox; 5110 int rc; 5111 5112 if (phba->sli_rev == LPFC_SLI_REV4) { 5113 lpfc_sli4_unreg_all_rpis(vport); 5114 return; 5115 } 5116 5117 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5118 if (mbox) { 5119 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5120 mbox); 5121 mbox->vport = vport; 5122 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5123 mbox->ctx_ndlp = NULL; 5124 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5125 if (rc != MBX_TIMEOUT) 5126 mempool_free(mbox, phba->mbox_mem_pool); 5127 5128 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5129 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5130 "1836 Could not issue " 5131 "unreg_login(all_rpis) status %d\n", 5132 rc); 5133 } 5134} 5135 5136void 5137lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5138{ 5139 struct lpfc_hba *phba = vport->phba; 5140 LPFC_MBOXQ_t *mbox; 5141 int rc; 5142 5143 /* Unreg DID is an SLI3 operation. */ 5144 if (phba->sli_rev > LPFC_SLI_REV3) 5145 return; 5146 5147 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5148 if (mbox) { 5149 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5150 mbox); 5151 mbox->vport = vport; 5152 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5153 mbox->ctx_ndlp = NULL; 5154 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5155 if (rc != MBX_TIMEOUT) 5156 mempool_free(mbox, phba->mbox_mem_pool); 5157 5158 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5159 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5160 "1815 Could not issue " 5161 "unreg_did (default rpis) status %d\n", 5162 rc); 5163 } 5164} 5165 5166/* 5167 * Free resources associated with LPFC_NODELIST entry 5168 * so it can be freed. 5169 */ 5170static int 5171lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5172{ 5173 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5174 struct lpfc_hba *phba = vport->phba; 5175 LPFC_MBOXQ_t *mb, *nextmb; 5176 struct lpfc_dmabuf *mp; 5177 unsigned long iflags; 5178 5179 /* Cleanup node for NPort <nlp_DID> */ 5180 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5181 "0900 Cleanup node for NPort x%x " 5182 "Data: x%x x%x x%x\n", 5183 ndlp->nlp_DID, ndlp->nlp_flag, 5184 ndlp->nlp_state, ndlp->nlp_rpi); 5185 if (NLP_CHK_FREE_REQ(ndlp)) { 5186 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5187 "0280 %s: ndlp:x%px " 5188 "usgmap:x%x refcnt:%d\n", 5189 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5190 kref_read(&ndlp->kref)); 5191 lpfc_dequeue_node(vport, ndlp); 5192 } else { 5193 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5194 "0281 %s: ndlp:x%px " 5195 "usgmap:x%x refcnt:%d\n", 5196 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5197 kref_read(&ndlp->kref)); 5198 lpfc_disable_node(vport, ndlp); 5199 } 5200 5201 5202 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5203 5204 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5205 if ((mb = phba->sli.mbox_active)) { 5206 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5207 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5208 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5209 mb->ctx_ndlp = NULL; 5210 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5211 } 5212 } 5213 5214 spin_lock_irq(&phba->hbalock); 5215 /* Cleanup REG_LOGIN completions which are not yet processed */ 5216 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5217 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5218 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5219 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5220 continue; 5221 5222 mb->ctx_ndlp = NULL; 5223 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5224 } 5225 5226 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5227 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5228 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5229 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5230 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5231 if (mp) { 5232 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5233 kfree(mp); 5234 } 5235 list_del(&mb->list); 5236 mempool_free(mb, phba->mbox_mem_pool); 5237 /* We shall not invoke the lpfc_nlp_put to decrement 5238 * the ndlp reference count as we are in the process 5239 * of lpfc_nlp_release. 5240 */ 5241 } 5242 } 5243 spin_unlock_irq(&phba->hbalock); 5244 5245 lpfc_els_abort(phba, ndlp); 5246 5247 spin_lock_irq(shost->host_lock); 5248 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5249 spin_unlock_irq(shost->host_lock); 5250 5251 ndlp->nlp_last_elscmd = 0; 5252 del_timer_sync(&ndlp->nlp_delayfunc); 5253 5254 list_del_init(&ndlp->els_retry_evt.evt_listp); 5255 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5256 list_del_init(&ndlp->recovery_evt.evt_listp); 5257 lpfc_cleanup_vports_rrqs(vport, ndlp); 5258 if (phba->sli_rev == LPFC_SLI_REV4) 5259 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5260 if (!lpfc_unreg_rpi(vport, ndlp)) { 5261 /* Clean up unregistered and non freed rpis */ 5262 if ((ndlp->nlp_flag & NLP_RELEASE_RPI) && 5263 !(ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)) { 5264 lpfc_sli4_free_rpi(vport->phba, 5265 ndlp->nlp_rpi); 5266 spin_lock_irqsave(&vport->phba->ndlp_lock, 5267 iflags); 5268 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5269 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5270 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 5271 iflags); 5272 } 5273 } 5274 return 0; 5275} 5276 5277/* 5278 * Check to see if we can free the nlp back to the freelist. 5279 * If we are in the middle of using the nlp in the discovery state 5280 * machine, defer the free till we reach the end of the state machine. 5281 */ 5282static void 5283lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5284{ 5285 struct lpfc_hba *phba = vport->phba; 5286 struct lpfc_rport_data *rdata; 5287 struct fc_rport *rport; 5288 LPFC_MBOXQ_t *mbox; 5289 int rc; 5290 5291 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5292 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5293 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5294 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5295 phba->sli_rev != LPFC_SLI_REV4) { 5296 /* For this case we need to cleanup the default rpi 5297 * allocated by the firmware. 5298 */ 5299 lpfc_printf_vlog(vport, KERN_INFO, 5300 LOG_NODE | LOG_DISCOVERY, 5301 "0005 Cleanup Default rpi:x%x DID:x%x flg:x%x " 5302 "ref %d map:x%x ndlp x%px\n", 5303 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5304 kref_read(&ndlp->kref), 5305 ndlp->nlp_usg_map, ndlp); 5306 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5307 != NULL) { 5308 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5309 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5310 if (rc) { 5311 mempool_free(mbox, phba->mbox_mem_pool); 5312 } 5313 else { 5314 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5315 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5316 mbox->vport = vport; 5317 mbox->ctx_ndlp = ndlp; 5318 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5319 if (rc == MBX_NOT_FINISHED) { 5320 mempool_free(mbox, phba->mbox_mem_pool); 5321 } 5322 } 5323 } 5324 } 5325 lpfc_cleanup_node(vport, ndlp); 5326 5327 /* 5328 * ndlp->rport must be set to NULL before it reaches here 5329 * i.e. break rport/node link before doing lpfc_nlp_put for 5330 * registered rport and then drop the reference of rport. 5331 */ 5332 if (ndlp->rport) { 5333 /* 5334 * extra lpfc_nlp_put dropped the reference of ndlp 5335 * for registered rport so need to cleanup rport 5336 */ 5337 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5338 "0940 removed node x%px DID x%x " 5339 "rpi %d rport not null x%px\n", 5340 ndlp, ndlp->nlp_DID, ndlp->nlp_rpi, 5341 ndlp->rport); 5342 rport = ndlp->rport; 5343 rdata = rport->dd_data; 5344 rdata->pnode = NULL; 5345 ndlp->rport = NULL; 5346 put_device(&rport->dev); 5347 } 5348} 5349 5350static int 5351lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5352 uint32_t did) 5353{ 5354 D_ID mydid, ndlpdid, matchdid; 5355 5356 if (did == Bcast_DID) 5357 return 0; 5358 5359 /* First check for Direct match */ 5360 if (ndlp->nlp_DID == did) 5361 return 1; 5362 5363 /* Next check for area/domain identically equals 0 match */ 5364 mydid.un.word = vport->fc_myDID; 5365 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5366 return 0; 5367 } 5368 5369 matchdid.un.word = did; 5370 ndlpdid.un.word = ndlp->nlp_DID; 5371 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5372 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5373 (mydid.un.b.area == matchdid.un.b.area)) { 5374 /* This code is supposed to match the ID 5375 * for a private loop device that is 5376 * connect to fl_port. But we need to 5377 * check that the port did not just go 5378 * from pt2pt to fabric or we could end 5379 * up matching ndlp->nlp_DID 000001 to 5380 * fabric DID 0x20101 5381 */ 5382 if ((ndlpdid.un.b.domain == 0) && 5383 (ndlpdid.un.b.area == 0)) { 5384 if (ndlpdid.un.b.id && 5385 vport->phba->fc_topology == 5386 LPFC_TOPOLOGY_LOOP) 5387 return 1; 5388 } 5389 return 0; 5390 } 5391 5392 matchdid.un.word = ndlp->nlp_DID; 5393 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5394 (mydid.un.b.area == ndlpdid.un.b.area)) { 5395 if ((matchdid.un.b.domain == 0) && 5396 (matchdid.un.b.area == 0)) { 5397 if (matchdid.un.b.id) 5398 return 1; 5399 } 5400 } 5401 } 5402 return 0; 5403} 5404 5405/* Search for a nodelist entry */ 5406static struct lpfc_nodelist * 5407__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5408{ 5409 struct lpfc_nodelist *ndlp; 5410 uint32_t data1; 5411 5412 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5413 if (lpfc_matchdid(vport, ndlp, did)) { 5414 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5415 ((uint32_t)ndlp->nlp_xri << 16) | 5416 ((uint32_t)ndlp->nlp_type << 8) | 5417 ((uint32_t)ndlp->nlp_usg_map & 0xff)); 5418 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5419 "0929 FIND node DID " 5420 "Data: x%px x%x x%x x%x x%x x%px\n", 5421 ndlp, ndlp->nlp_DID, 5422 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5423 ndlp->active_rrqs_xri_bitmap); 5424 return ndlp; 5425 } 5426 } 5427 5428 /* FIND node did <did> NOT FOUND */ 5429 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5430 "0932 FIND node did x%x NOT FOUND.\n", did); 5431 return NULL; 5432} 5433 5434struct lpfc_nodelist * 5435lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5436{ 5437 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5438 struct lpfc_nodelist *ndlp; 5439 unsigned long iflags; 5440 5441 spin_lock_irqsave(shost->host_lock, iflags); 5442 ndlp = __lpfc_findnode_did(vport, did); 5443 spin_unlock_irqrestore(shost->host_lock, iflags); 5444 return ndlp; 5445} 5446 5447struct lpfc_nodelist * 5448lpfc_findnode_mapped(struct lpfc_vport *vport) 5449{ 5450 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5451 struct lpfc_nodelist *ndlp; 5452 uint32_t data1; 5453 unsigned long iflags; 5454 5455 spin_lock_irqsave(shost->host_lock, iflags); 5456 5457 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5458 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5459 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5460 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5461 ((uint32_t)ndlp->nlp_xri << 16) | 5462 ((uint32_t)ndlp->nlp_type << 8) | 5463 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5464 spin_unlock_irqrestore(shost->host_lock, iflags); 5465 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5466 "2025 FIND node DID " 5467 "Data: x%px x%x x%x x%x x%px\n", 5468 ndlp, ndlp->nlp_DID, 5469 ndlp->nlp_flag, data1, 5470 ndlp->active_rrqs_xri_bitmap); 5471 return ndlp; 5472 } 5473 } 5474 spin_unlock_irqrestore(shost->host_lock, iflags); 5475 5476 /* FIND node did <did> NOT FOUND */ 5477 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5478 "2026 FIND mapped did NOT FOUND.\n"); 5479 return NULL; 5480} 5481 5482struct lpfc_nodelist * 5483lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5484{ 5485 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5486 struct lpfc_nodelist *ndlp; 5487 5488 ndlp = lpfc_findnode_did(vport, did); 5489 if (!ndlp) { 5490 if (vport->phba->nvmet_support) 5491 return NULL; 5492 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5493 lpfc_rscn_payload_check(vport, did) == 0) 5494 return NULL; 5495 ndlp = lpfc_nlp_init(vport, did); 5496 if (!ndlp) 5497 return NULL; 5498 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5499 5500 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5501 "6453 Setup New Node 2B_DISC x%x " 5502 "Data:x%x x%x x%x\n", 5503 ndlp->nlp_DID, ndlp->nlp_flag, 5504 ndlp->nlp_state, vport->fc_flag); 5505 5506 spin_lock_irq(shost->host_lock); 5507 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5508 spin_unlock_irq(shost->host_lock); 5509 return ndlp; 5510 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5511 if (vport->phba->nvmet_support) 5512 return NULL; 5513 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5514 if (!ndlp) { 5515 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 5516 "0014 Could not enable ndlp\n"); 5517 return NULL; 5518 } 5519 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5520 "6454 Setup Enabled Node 2B_DISC x%x " 5521 "Data:x%x x%x x%x\n", 5522 ndlp->nlp_DID, ndlp->nlp_flag, 5523 ndlp->nlp_state, vport->fc_flag); 5524 5525 spin_lock_irq(shost->host_lock); 5526 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5527 spin_unlock_irq(shost->host_lock); 5528 return ndlp; 5529 } 5530 5531 /* The NVME Target does not want to actively manage an rport. 5532 * The goal is to allow the target to reset its state and clear 5533 * pending IO in preparation for the initiator to recover. 5534 */ 5535 if ((vport->fc_flag & FC_RSCN_MODE) && 5536 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5537 if (lpfc_rscn_payload_check(vport, did)) { 5538 5539 /* Since this node is marked for discovery, 5540 * delay timeout is not needed. 5541 */ 5542 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5543 5544 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5545 "6455 Setup RSCN Node 2B_DISC x%x " 5546 "Data:x%x x%x x%x\n", 5547 ndlp->nlp_DID, ndlp->nlp_flag, 5548 ndlp->nlp_state, vport->fc_flag); 5549 5550 /* NVME Target mode waits until rport is known to be 5551 * impacted by the RSCN before it transitions. No 5552 * active management - just go to NPR provided the 5553 * node had a valid login. 5554 */ 5555 if (vport->phba->nvmet_support) 5556 return ndlp; 5557 5558 /* If we've already received a PLOGI from this NPort 5559 * we don't need to try to discover it again. 5560 */ 5561 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5562 !(ndlp->nlp_type & 5563 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5564 return NULL; 5565 5566 ndlp->nlp_prev_state = ndlp->nlp_state; 5567 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5568 5569 spin_lock_irq(shost->host_lock); 5570 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5571 spin_unlock_irq(shost->host_lock); 5572 } else { 5573 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5574 "6456 Skip Setup RSCN Node x%x " 5575 "Data:x%x x%x x%x\n", 5576 ndlp->nlp_DID, ndlp->nlp_flag, 5577 ndlp->nlp_state, vport->fc_flag); 5578 ndlp = NULL; 5579 } 5580 } else { 5581 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5582 "6457 Setup Active Node 2B_DISC x%x " 5583 "Data:x%x x%x x%x\n", 5584 ndlp->nlp_DID, ndlp->nlp_flag, 5585 ndlp->nlp_state, vport->fc_flag); 5586 5587 /* If the initiator received a PLOGI from this NPort or if the 5588 * initiator is already in the process of discovery on it, 5589 * there's no need to try to discover it again. 5590 */ 5591 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5592 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5593 (!vport->phba->nvmet_support && 5594 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5595 return NULL; 5596 5597 if (vport->phba->nvmet_support) 5598 return ndlp; 5599 5600 /* Moving to NPR state clears unsolicited flags and 5601 * allows for rediscovery 5602 */ 5603 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5604 5605 spin_lock_irq(shost->host_lock); 5606 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5607 spin_unlock_irq(shost->host_lock); 5608 } 5609 return ndlp; 5610} 5611 5612/* Build a list of nodes to discover based on the loopmap */ 5613void 5614lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5615{ 5616 struct lpfc_hba *phba = vport->phba; 5617 int j; 5618 uint32_t alpa, index; 5619 5620 if (!lpfc_is_link_up(phba)) 5621 return; 5622 5623 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5624 return; 5625 5626 /* Check for loop map present or not */ 5627 if (phba->alpa_map[0]) { 5628 for (j = 1; j <= phba->alpa_map[0]; j++) { 5629 alpa = phba->alpa_map[j]; 5630 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5631 continue; 5632 lpfc_setup_disc_node(vport, alpa); 5633 } 5634 } else { 5635 /* No alpamap, so try all alpa's */ 5636 for (j = 0; j < FC_MAXLOOP; j++) { 5637 /* If cfg_scan_down is set, start from highest 5638 * ALPA (0xef) to lowest (0x1). 5639 */ 5640 if (vport->cfg_scan_down) 5641 index = j; 5642 else 5643 index = FC_MAXLOOP - j - 1; 5644 alpa = lpfcAlpaArray[index]; 5645 if ((vport->fc_myDID & 0xff) == alpa) 5646 continue; 5647 lpfc_setup_disc_node(vport, alpa); 5648 } 5649 } 5650 return; 5651} 5652 5653/* SLI3 only */ 5654void 5655lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5656{ 5657 LPFC_MBOXQ_t *mbox; 5658 struct lpfc_sli *psli = &phba->sli; 5659 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5660 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5661 int rc; 5662 5663 /* 5664 * if it's not a physical port or if we already send 5665 * clear_la then don't send it. 5666 */ 5667 if ((phba->link_state >= LPFC_CLEAR_LA) || 5668 (vport->port_type != LPFC_PHYSICAL_PORT) || 5669 (phba->sli_rev == LPFC_SLI_REV4)) 5670 return; 5671 5672 /* Link up discovery */ 5673 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5674 phba->link_state = LPFC_CLEAR_LA; 5675 lpfc_clear_la(phba, mbox); 5676 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5677 mbox->vport = vport; 5678 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5679 if (rc == MBX_NOT_FINISHED) { 5680 mempool_free(mbox, phba->mbox_mem_pool); 5681 lpfc_disc_flush_list(vport); 5682 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5683 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5684 phba->link_state = LPFC_HBA_ERROR; 5685 } 5686 } 5687} 5688 5689/* Reg_vpi to tell firmware to resume normal operations */ 5690void 5691lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5692{ 5693 LPFC_MBOXQ_t *regvpimbox; 5694 5695 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5696 if (regvpimbox) { 5697 lpfc_reg_vpi(vport, regvpimbox); 5698 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5699 regvpimbox->vport = vport; 5700 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5701 == MBX_NOT_FINISHED) { 5702 mempool_free(regvpimbox, phba->mbox_mem_pool); 5703 } 5704 } 5705} 5706 5707/* Start Link up / RSCN discovery on NPR nodes */ 5708void 5709lpfc_disc_start(struct lpfc_vport *vport) 5710{ 5711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5712 struct lpfc_hba *phba = vport->phba; 5713 uint32_t num_sent; 5714 uint32_t clear_la_pending; 5715 5716 if (!lpfc_is_link_up(phba)) { 5717 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5718 "3315 Link is not up %x\n", 5719 phba->link_state); 5720 return; 5721 } 5722 5723 if (phba->link_state == LPFC_CLEAR_LA) 5724 clear_la_pending = 1; 5725 else 5726 clear_la_pending = 0; 5727 5728 if (vport->port_state < LPFC_VPORT_READY) 5729 vport->port_state = LPFC_DISC_AUTH; 5730 5731 lpfc_set_disctmo(vport); 5732 5733 vport->fc_prevDID = vport->fc_myDID; 5734 vport->num_disc_nodes = 0; 5735 5736 /* Start Discovery state <hba_state> */ 5737 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5738 "0202 Start Discovery port state x%x " 5739 "flg x%x Data: x%x x%x x%x\n", 5740 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5741 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5742 5743 /* First do ADISCs - if any */ 5744 num_sent = lpfc_els_disc_adisc(vport); 5745 5746 if (num_sent) 5747 return; 5748 5749 /* Register the VPI for SLI3, NPIV only. */ 5750 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5751 !(vport->fc_flag & FC_PT2PT) && 5752 !(vport->fc_flag & FC_RSCN_MODE) && 5753 (phba->sli_rev < LPFC_SLI_REV4)) { 5754 lpfc_issue_clear_la(phba, vport); 5755 lpfc_issue_reg_vpi(phba, vport); 5756 return; 5757 } 5758 5759 /* 5760 * For SLI2, we need to set port_state to READY and continue 5761 * discovery. 5762 */ 5763 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5764 /* If we get here, there is nothing to ADISC */ 5765 lpfc_issue_clear_la(phba, vport); 5766 5767 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5768 vport->num_disc_nodes = 0; 5769 /* go thru NPR nodes and issue ELS PLOGIs */ 5770 if (vport->fc_npr_cnt) 5771 lpfc_els_disc_plogi(vport); 5772 5773 if (!vport->num_disc_nodes) { 5774 spin_lock_irq(shost->host_lock); 5775 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5776 spin_unlock_irq(shost->host_lock); 5777 lpfc_can_disctmo(vport); 5778 } 5779 } 5780 vport->port_state = LPFC_VPORT_READY; 5781 } else { 5782 /* Next do PLOGIs - if any */ 5783 num_sent = lpfc_els_disc_plogi(vport); 5784 5785 if (num_sent) 5786 return; 5787 5788 if (vport->fc_flag & FC_RSCN_MODE) { 5789 /* Check to see if more RSCNs came in while we 5790 * were processing this one. 5791 */ 5792 if ((vport->fc_rscn_id_cnt == 0) && 5793 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5794 spin_lock_irq(shost->host_lock); 5795 vport->fc_flag &= ~FC_RSCN_MODE; 5796 spin_unlock_irq(shost->host_lock); 5797 lpfc_can_disctmo(vport); 5798 } else 5799 lpfc_els_handle_rscn(vport); 5800 } 5801 } 5802 return; 5803} 5804 5805/* 5806 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5807 * ring the match the sppecified nodelist. 5808 */ 5809static void 5810lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5811{ 5812 LIST_HEAD(completions); 5813 IOCB_t *icmd; 5814 struct lpfc_iocbq *iocb, *next_iocb; 5815 struct lpfc_sli_ring *pring; 5816 5817 pring = lpfc_phba_elsring(phba); 5818 if (unlikely(!pring)) 5819 return; 5820 5821 /* Error matching iocb on txq or txcmplq 5822 * First check the txq. 5823 */ 5824 spin_lock_irq(&phba->hbalock); 5825 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5826 if (iocb->context1 != ndlp) { 5827 continue; 5828 } 5829 icmd = &iocb->iocb; 5830 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5831 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5832 5833 list_move_tail(&iocb->list, &completions); 5834 } 5835 } 5836 5837 /* Next check the txcmplq */ 5838 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5839 if (iocb->context1 != ndlp) { 5840 continue; 5841 } 5842 icmd = &iocb->iocb; 5843 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5844 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5845 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5846 } 5847 } 5848 spin_unlock_irq(&phba->hbalock); 5849 5850 /* Cancel all the IOCBs from the completions list */ 5851 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5852 IOERR_SLI_ABORTED); 5853} 5854 5855static void 5856lpfc_disc_flush_list(struct lpfc_vport *vport) 5857{ 5858 struct lpfc_nodelist *ndlp, *next_ndlp; 5859 struct lpfc_hba *phba = vport->phba; 5860 5861 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5862 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5863 nlp_listp) { 5864 if (!NLP_CHK_NODE_ACT(ndlp)) 5865 continue; 5866 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5867 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5868 lpfc_free_tx(phba, ndlp); 5869 } 5870 } 5871 } 5872} 5873 5874void 5875lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5876{ 5877 lpfc_els_flush_rscn(vport); 5878 lpfc_els_flush_cmd(vport); 5879 lpfc_disc_flush_list(vport); 5880} 5881 5882/*****************************************************************************/ 5883/* 5884 * NAME: lpfc_disc_timeout 5885 * 5886 * FUNCTION: Fibre Channel driver discovery timeout routine. 5887 * 5888 * EXECUTION ENVIRONMENT: interrupt only 5889 * 5890 * CALLED FROM: 5891 * Timer function 5892 * 5893 * RETURNS: 5894 * none 5895 */ 5896/*****************************************************************************/ 5897void 5898lpfc_disc_timeout(struct timer_list *t) 5899{ 5900 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5901 struct lpfc_hba *phba = vport->phba; 5902 uint32_t tmo_posted; 5903 unsigned long flags = 0; 5904 5905 if (unlikely(!phba)) 5906 return; 5907 5908 spin_lock_irqsave(&vport->work_port_lock, flags); 5909 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5910 if (!tmo_posted) 5911 vport->work_port_events |= WORKER_DISC_TMO; 5912 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5913 5914 if (!tmo_posted) 5915 lpfc_worker_wake_up(phba); 5916 return; 5917} 5918 5919static void 5920lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5921{ 5922 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5923 struct lpfc_hba *phba = vport->phba; 5924 struct lpfc_sli *psli = &phba->sli; 5925 struct lpfc_nodelist *ndlp, *next_ndlp; 5926 LPFC_MBOXQ_t *initlinkmbox; 5927 int rc, clrlaerr = 0; 5928 5929 if (!(vport->fc_flag & FC_DISC_TMO)) 5930 return; 5931 5932 spin_lock_irq(shost->host_lock); 5933 vport->fc_flag &= ~FC_DISC_TMO; 5934 spin_unlock_irq(shost->host_lock); 5935 5936 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5937 "disc timeout: state:x%x rtry:x%x flg:x%x", 5938 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5939 5940 switch (vport->port_state) { 5941 5942 case LPFC_LOCAL_CFG_LINK: 5943 /* 5944 * port_state is identically LPFC_LOCAL_CFG_LINK while 5945 * waiting for FAN timeout 5946 */ 5947 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5948 "0221 FAN timeout\n"); 5949 5950 /* Start discovery by sending FLOGI, clean up old rpis */ 5951 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5952 nlp_listp) { 5953 if (!NLP_CHK_NODE_ACT(ndlp)) 5954 continue; 5955 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5956 continue; 5957 if (ndlp->nlp_type & NLP_FABRIC) { 5958 /* Clean up the ndlp on Fabric connections */ 5959 lpfc_drop_node(vport, ndlp); 5960 5961 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5962 /* Fail outstanding IO now since device 5963 * is marked for PLOGI. 5964 */ 5965 lpfc_unreg_rpi(vport, ndlp); 5966 } 5967 } 5968 if (vport->port_state != LPFC_FLOGI) { 5969 if (phba->sli_rev <= LPFC_SLI_REV3) 5970 lpfc_initial_flogi(vport); 5971 else 5972 lpfc_issue_init_vfi(vport); 5973 return; 5974 } 5975 break; 5976 5977 case LPFC_FDISC: 5978 case LPFC_FLOGI: 5979 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5980 /* Initial FLOGI timeout */ 5981 lpfc_printf_vlog(vport, KERN_ERR, 5982 LOG_TRACE_EVENT, 5983 "0222 Initial %s timeout\n", 5984 vport->vpi ? "FDISC" : "FLOGI"); 5985 5986 /* Assume no Fabric and go on with discovery. 5987 * Check for outstanding ELS FLOGI to abort. 5988 */ 5989 5990 /* FLOGI failed, so just use loop map to make discovery list */ 5991 lpfc_disc_list_loopmap(vport); 5992 5993 /* Start discovery */ 5994 lpfc_disc_start(vport); 5995 break; 5996 5997 case LPFC_FABRIC_CFG_LINK: 5998 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5999 NameServer login */ 6000 lpfc_printf_vlog(vport, KERN_ERR, 6001 LOG_TRACE_EVENT, 6002 "0223 Timeout while waiting for " 6003 "NameServer login\n"); 6004 /* Next look for NameServer ndlp */ 6005 ndlp = lpfc_findnode_did(vport, NameServer_DID); 6006 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 6007 lpfc_els_abort(phba, ndlp); 6008 6009 /* ReStart discovery */ 6010 goto restart_disc; 6011 6012 case LPFC_NS_QRY: 6013 /* Check for wait for NameServer Rsp timeout */ 6014 lpfc_printf_vlog(vport, KERN_ERR, 6015 LOG_TRACE_EVENT, 6016 "0224 NameServer Query timeout " 6017 "Data: x%x x%x\n", 6018 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6019 6020 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 6021 /* Try it one more time */ 6022 vport->fc_ns_retry++; 6023 vport->gidft_inp = 0; 6024 rc = lpfc_issue_gidft(vport); 6025 if (rc == 0) 6026 break; 6027 } 6028 vport->fc_ns_retry = 0; 6029 6030restart_disc: 6031 /* 6032 * Discovery is over. 6033 * set port_state to PORT_READY if SLI2. 6034 * cmpl_reg_vpi will set port_state to READY for SLI3. 6035 */ 6036 if (phba->sli_rev < LPFC_SLI_REV4) { 6037 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6038 lpfc_issue_reg_vpi(phba, vport); 6039 else { 6040 lpfc_issue_clear_la(phba, vport); 6041 vport->port_state = LPFC_VPORT_READY; 6042 } 6043 } 6044 6045 /* Setup and issue mailbox INITIALIZE LINK command */ 6046 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6047 if (!initlinkmbox) { 6048 lpfc_printf_vlog(vport, KERN_ERR, 6049 LOG_TRACE_EVENT, 6050 "0206 Device Discovery " 6051 "completion error\n"); 6052 phba->link_state = LPFC_HBA_ERROR; 6053 break; 6054 } 6055 6056 lpfc_linkdown(phba); 6057 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 6058 phba->cfg_link_speed); 6059 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 6060 initlinkmbox->vport = vport; 6061 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 6062 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 6063 lpfc_set_loopback_flag(phba); 6064 if (rc == MBX_NOT_FINISHED) 6065 mempool_free(initlinkmbox, phba->mbox_mem_pool); 6066 6067 break; 6068 6069 case LPFC_DISC_AUTH: 6070 /* Node Authentication timeout */ 6071 lpfc_printf_vlog(vport, KERN_ERR, 6072 LOG_TRACE_EVENT, 6073 "0227 Node Authentication timeout\n"); 6074 lpfc_disc_flush_list(vport); 6075 6076 /* 6077 * set port_state to PORT_READY if SLI2. 6078 * cmpl_reg_vpi will set port_state to READY for SLI3. 6079 */ 6080 if (phba->sli_rev < LPFC_SLI_REV4) { 6081 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6082 lpfc_issue_reg_vpi(phba, vport); 6083 else { /* NPIV Not enabled */ 6084 lpfc_issue_clear_la(phba, vport); 6085 vport->port_state = LPFC_VPORT_READY; 6086 } 6087 } 6088 break; 6089 6090 case LPFC_VPORT_READY: 6091 if (vport->fc_flag & FC_RSCN_MODE) { 6092 lpfc_printf_vlog(vport, KERN_ERR, 6093 LOG_TRACE_EVENT, 6094 "0231 RSCN timeout Data: x%x " 6095 "x%x\n", 6096 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6097 6098 /* Cleanup any outstanding ELS commands */ 6099 lpfc_els_flush_cmd(vport); 6100 6101 lpfc_els_flush_rscn(vport); 6102 lpfc_disc_flush_list(vport); 6103 } 6104 break; 6105 6106 default: 6107 lpfc_printf_vlog(vport, KERN_ERR, 6108 LOG_TRACE_EVENT, 6109 "0273 Unexpected discovery timeout, " 6110 "vport State x%x\n", vport->port_state); 6111 break; 6112 } 6113 6114 switch (phba->link_state) { 6115 case LPFC_CLEAR_LA: 6116 /* CLEAR LA timeout */ 6117 lpfc_printf_vlog(vport, KERN_ERR, 6118 LOG_TRACE_EVENT, 6119 "0228 CLEAR LA timeout\n"); 6120 clrlaerr = 1; 6121 break; 6122 6123 case LPFC_LINK_UP: 6124 lpfc_issue_clear_la(phba, vport); 6125 fallthrough; 6126 case LPFC_LINK_UNKNOWN: 6127 case LPFC_WARM_START: 6128 case LPFC_INIT_START: 6129 case LPFC_INIT_MBX_CMDS: 6130 case LPFC_LINK_DOWN: 6131 case LPFC_HBA_ERROR: 6132 lpfc_printf_vlog(vport, KERN_ERR, 6133 LOG_TRACE_EVENT, 6134 "0230 Unexpected timeout, hba link " 6135 "state x%x\n", phba->link_state); 6136 clrlaerr = 1; 6137 break; 6138 6139 case LPFC_HBA_READY: 6140 break; 6141 } 6142 6143 if (clrlaerr) { 6144 lpfc_disc_flush_list(vport); 6145 if (phba->sli_rev != LPFC_SLI_REV4) { 6146 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6147 ~LPFC_STOP_IOCB_EVENT; 6148 psli->sli3_ring[LPFC_FCP_RING].flag &= 6149 ~LPFC_STOP_IOCB_EVENT; 6150 } 6151 vport->port_state = LPFC_VPORT_READY; 6152 } 6153 return; 6154} 6155 6156/* 6157 * This routine handles processing a NameServer REG_LOGIN mailbox 6158 * command upon completion. It is setup in the LPFC_MBOXQ 6159 * as the completion routine when the command is 6160 * handed off to the SLI layer. 6161 */ 6162void 6163lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6164{ 6165 MAILBOX_t *mb = &pmb->u.mb; 6166 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 6167 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6168 struct lpfc_vport *vport = pmb->vport; 6169 6170 pmb->ctx_buf = NULL; 6171 pmb->ctx_ndlp = NULL; 6172 6173 if (phba->sli_rev < LPFC_SLI_REV4) 6174 ndlp->nlp_rpi = mb->un.varWords[0]; 6175 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6176 ndlp->nlp_type |= NLP_FABRIC; 6177 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6178 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6179 "0004 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 6180 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6181 kref_read(&ndlp->kref), 6182 ndlp->nlp_usg_map, ndlp); 6183 /* 6184 * Start issuing Fabric-Device Management Interface (FDMI) command to 6185 * 0xfffffa (FDMI well known port). 6186 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6187 * DPRT -> RPRT (vports) 6188 */ 6189 if (vport->port_type == LPFC_PHYSICAL_PORT) 6190 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6191 else 6192 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6193 6194 6195 /* decrement the node reference count held for this callback 6196 * function. 6197 */ 6198 lpfc_nlp_put(ndlp); 6199 lpfc_mbuf_free(phba, mp->virt, mp->phys); 6200 kfree(mp); 6201 mempool_free(pmb, phba->mbox_mem_pool); 6202 6203 return; 6204} 6205 6206static int 6207lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6208{ 6209 uint16_t *rpi = param; 6210 6211 /* check for active node */ 6212 if (!NLP_CHK_NODE_ACT(ndlp)) 6213 return 0; 6214 6215 return ndlp->nlp_rpi == *rpi; 6216} 6217 6218static int 6219lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6220{ 6221 return memcmp(&ndlp->nlp_portname, param, 6222 sizeof(ndlp->nlp_portname)) == 0; 6223} 6224 6225static struct lpfc_nodelist * 6226__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6227{ 6228 struct lpfc_nodelist *ndlp; 6229 6230 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6231 if (filter(ndlp, param)) { 6232 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6233 "3185 FIND node filter %ps DID " 6234 "ndlp x%px did x%x flg x%x st x%x " 6235 "xri x%x type x%x rpi x%x\n", 6236 filter, ndlp, ndlp->nlp_DID, 6237 ndlp->nlp_flag, ndlp->nlp_state, 6238 ndlp->nlp_xri, ndlp->nlp_type, 6239 ndlp->nlp_rpi); 6240 return ndlp; 6241 } 6242 } 6243 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6244 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6245 return NULL; 6246} 6247 6248/* 6249 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6250 * returns the node list element pointer else return NULL. 6251 */ 6252struct lpfc_nodelist * 6253__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6254{ 6255 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6256} 6257 6258/* 6259 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6260 * returns the node element list pointer else return NULL. 6261 */ 6262struct lpfc_nodelist * 6263lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6264{ 6265 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6266 struct lpfc_nodelist *ndlp; 6267 6268 spin_lock_irq(shost->host_lock); 6269 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6270 spin_unlock_irq(shost->host_lock); 6271 return ndlp; 6272} 6273 6274/* 6275 * This routine looks up the ndlp lists for the given RPI. If the rpi 6276 * is found, the routine returns the node element list pointer else 6277 * return NULL. 6278 */ 6279struct lpfc_nodelist * 6280lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6281{ 6282 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6283 struct lpfc_nodelist *ndlp; 6284 unsigned long flags; 6285 6286 spin_lock_irqsave(shost->host_lock, flags); 6287 ndlp = __lpfc_findnode_rpi(vport, rpi); 6288 spin_unlock_irqrestore(shost->host_lock, flags); 6289 return ndlp; 6290} 6291 6292/** 6293 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6294 * @phba: pointer to lpfc hba data structure. 6295 * @vpi: the physical host virtual N_Port identifier. 6296 * 6297 * This routine finds a vport on a HBA (referred by @phba) through a 6298 * @vpi. The function walks the HBA's vport list and returns the address 6299 * of the vport with the matching @vpi. 6300 * 6301 * Return code 6302 * NULL - No vport with the matching @vpi found 6303 * Otherwise - Address to the vport with the matching @vpi. 6304 **/ 6305struct lpfc_vport * 6306lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6307{ 6308 struct lpfc_vport *vport; 6309 unsigned long flags; 6310 int i = 0; 6311 6312 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6313 if (vpi > 0) { 6314 /* 6315 * Translate the physical vpi to the logical vpi. The 6316 * vport stores the logical vpi. 6317 */ 6318 for (i = 0; i < phba->max_vpi; i++) { 6319 if (vpi == phba->vpi_ids[i]) 6320 break; 6321 } 6322 6323 if (i >= phba->max_vpi) { 6324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6325 "2936 Could not find Vport mapped " 6326 "to vpi %d\n", vpi); 6327 return NULL; 6328 } 6329 } 6330 6331 spin_lock_irqsave(&phba->port_list_lock, flags); 6332 list_for_each_entry(vport, &phba->port_list, listentry) { 6333 if (vport->vpi == i) { 6334 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6335 return vport; 6336 } 6337 } 6338 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6339 return NULL; 6340} 6341 6342struct lpfc_nodelist * 6343lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6344{ 6345 struct lpfc_nodelist *ndlp; 6346 int rpi = LPFC_RPI_ALLOC_ERROR; 6347 6348 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6349 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6350 if (rpi == LPFC_RPI_ALLOC_ERROR) 6351 return NULL; 6352 } 6353 6354 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6355 if (!ndlp) { 6356 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6357 lpfc_sli4_free_rpi(vport->phba, rpi); 6358 return NULL; 6359 } 6360 6361 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6362 6363 lpfc_initialize_node(vport, ndlp, did); 6364 INIT_LIST_HEAD(&ndlp->nlp_listp); 6365 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6366 ndlp->nlp_rpi = rpi; 6367 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6368 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6369 "flg:x%x refcnt:%d map:x%x\n", 6370 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6371 ndlp->nlp_flag, kref_read(&ndlp->kref), 6372 ndlp->nlp_usg_map); 6373 6374 ndlp->active_rrqs_xri_bitmap = 6375 mempool_alloc(vport->phba->active_rrq_pool, 6376 GFP_KERNEL); 6377 if (ndlp->active_rrqs_xri_bitmap) 6378 memset(ndlp->active_rrqs_xri_bitmap, 0, 6379 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6380 } 6381 6382 6383 6384 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6385 "node init: did:x%x", 6386 ndlp->nlp_DID, 0, 0); 6387 6388 return ndlp; 6389} 6390 6391/* This routine releases all resources associated with a specifc NPort's ndlp 6392 * and mempool_free's the nodelist. 6393 */ 6394static void 6395lpfc_nlp_release(struct kref *kref) 6396{ 6397 struct lpfc_hba *phba; 6398 unsigned long flags; 6399 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6400 kref); 6401 6402 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6403 "node release: did:x%x flg:x%x type:x%x", 6404 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6405 6406 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6407 "0279 %s: ndlp:x%px did %x " 6408 "usgmap:x%x refcnt:%d rpi:%x\n", 6409 __func__, 6410 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6411 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6412 6413 /* remove ndlp from action. */ 6414 lpfc_nlp_remove(ndlp->vport, ndlp); 6415 6416 /* clear the ndlp active flag for all release cases */ 6417 phba = ndlp->phba; 6418 spin_lock_irqsave(&phba->ndlp_lock, flags); 6419 NLP_CLR_NODE_ACT(ndlp); 6420 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6421 6422 /* free ndlp memory for final ndlp release */ 6423 if (NLP_CHK_FREE_REQ(ndlp)) { 6424 kfree(ndlp->lat_data); 6425 if (phba->sli_rev == LPFC_SLI_REV4) 6426 mempool_free(ndlp->active_rrqs_xri_bitmap, 6427 ndlp->phba->active_rrq_pool); 6428 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6429 } 6430} 6431 6432/* This routine bumps the reference count for a ndlp structure to ensure 6433 * that one discovery thread won't free a ndlp while another discovery thread 6434 * is using it. 6435 */ 6436struct lpfc_nodelist * 6437lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6438{ 6439 struct lpfc_hba *phba; 6440 unsigned long flags; 6441 6442 if (ndlp) { 6443 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6444 "node get: did:x%x flg:x%x refcnt:x%x", 6445 ndlp->nlp_DID, ndlp->nlp_flag, 6446 kref_read(&ndlp->kref)); 6447 /* The check of ndlp usage to prevent incrementing the 6448 * ndlp reference count that is in the process of being 6449 * released. 6450 */ 6451 phba = ndlp->phba; 6452 spin_lock_irqsave(&phba->ndlp_lock, flags); 6453 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6454 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6455 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6456 "0276 %s: ndlp:x%px " 6457 "usgmap:x%x refcnt:%d\n", 6458 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6459 kref_read(&ndlp->kref)); 6460 return NULL; 6461 } else 6462 kref_get(&ndlp->kref); 6463 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6464 } 6465 return ndlp; 6466} 6467 6468/* This routine decrements the reference count for a ndlp structure. If the 6469 * count goes to 0, this indicates the the associated nodelist should be 6470 * freed. Returning 1 indicates the ndlp resource has been released; on the 6471 * other hand, returning 0 indicates the ndlp resource has not been released 6472 * yet. 6473 */ 6474int 6475lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6476{ 6477 struct lpfc_hba *phba; 6478 unsigned long flags; 6479 6480 if (!ndlp) 6481 return 1; 6482 6483 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6484 "node put: did:x%x flg:x%x refcnt:x%x", 6485 ndlp->nlp_DID, ndlp->nlp_flag, 6486 kref_read(&ndlp->kref)); 6487 phba = ndlp->phba; 6488 spin_lock_irqsave(&phba->ndlp_lock, flags); 6489 /* Check the ndlp memory free acknowledge flag to avoid the 6490 * possible race condition that kref_put got invoked again 6491 * after previous one has done ndlp memory free. 6492 */ 6493 if (NLP_CHK_FREE_ACK(ndlp)) { 6494 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6495 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6496 "0274 %s: ndlp:x%px " 6497 "usgmap:x%x refcnt:%d\n", 6498 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6499 kref_read(&ndlp->kref)); 6500 return 1; 6501 } 6502 /* Check the ndlp inactivate log flag to avoid the possible 6503 * race condition that kref_put got invoked again after ndlp 6504 * is already in inactivating state. 6505 */ 6506 if (NLP_CHK_IACT_REQ(ndlp)) { 6507 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6508 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6509 "0275 %s: ndlp:x%px " 6510 "usgmap:x%x refcnt:%d\n", 6511 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6512 kref_read(&ndlp->kref)); 6513 return 1; 6514 } 6515 /* For last put, mark the ndlp usage flags to make sure no 6516 * other kref_get and kref_put on the same ndlp shall get 6517 * in between the process when the final kref_put has been 6518 * invoked on this ndlp. 6519 */ 6520 if (kref_read(&ndlp->kref) == 1) { 6521 /* Indicate ndlp is put to inactive state. */ 6522 NLP_SET_IACT_REQ(ndlp); 6523 /* Acknowledge ndlp memory free has been seen. */ 6524 if (NLP_CHK_FREE_REQ(ndlp)) 6525 NLP_SET_FREE_ACK(ndlp); 6526 } 6527 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6528 /* Note, the kref_put returns 1 when decrementing a reference 6529 * count that was 1, it invokes the release callback function, 6530 * but it still left the reference count as 1 (not actually 6531 * performs the last decrementation). Otherwise, it actually 6532 * decrements the reference count and returns 0. 6533 */ 6534 return kref_put(&ndlp->kref, lpfc_nlp_release); 6535} 6536 6537/* This routine free's the specified nodelist if it is not in use 6538 * by any other discovery thread. This routine returns 1 if the 6539 * ndlp has been freed. A return value of 0 indicates the ndlp is 6540 * not yet been released. 6541 */ 6542int 6543lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6544{ 6545 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6546 "node not used: did:x%x flg:x%x refcnt:x%x", 6547 ndlp->nlp_DID, ndlp->nlp_flag, 6548 kref_read(&ndlp->kref)); 6549 if (kref_read(&ndlp->kref) == 1) 6550 if (lpfc_nlp_put(ndlp)) 6551 return 1; 6552 return 0; 6553} 6554 6555/** 6556 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6557 * @phba: Pointer to hba context object. 6558 * 6559 * This function iterate through all FC nodes associated 6560 * will all vports to check if there is any node with 6561 * fc_rports associated with it. If there is an fc_rport 6562 * associated with the node, then the node is either in 6563 * discovered state or its devloss_timer is pending. 6564 */ 6565static int 6566lpfc_fcf_inuse(struct lpfc_hba *phba) 6567{ 6568 struct lpfc_vport **vports; 6569 int i, ret = 0; 6570 struct lpfc_nodelist *ndlp; 6571 struct Scsi_Host *shost; 6572 6573 vports = lpfc_create_vport_work_array(phba); 6574 6575 /* If driver cannot allocate memory, indicate fcf is in use */ 6576 if (!vports) 6577 return 1; 6578 6579 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6580 shost = lpfc_shost_from_vport(vports[i]); 6581 spin_lock_irq(shost->host_lock); 6582 /* 6583 * IF the CVL_RCVD bit is not set then we have sent the 6584 * flogi. 6585 * If dev_loss fires while we are waiting we do not want to 6586 * unreg the fcf. 6587 */ 6588 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6589 spin_unlock_irq(shost->host_lock); 6590 ret = 1; 6591 goto out; 6592 } 6593 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6594 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6595 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6596 ret = 1; 6597 spin_unlock_irq(shost->host_lock); 6598 goto out; 6599 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6600 ret = 1; 6601 lpfc_printf_log(phba, KERN_INFO, 6602 LOG_NODE | LOG_DISCOVERY, 6603 "2624 RPI %x DID %x flag %x " 6604 "still logged in\n", 6605 ndlp->nlp_rpi, ndlp->nlp_DID, 6606 ndlp->nlp_flag); 6607 } 6608 } 6609 spin_unlock_irq(shost->host_lock); 6610 } 6611out: 6612 lpfc_destroy_vport_work_array(phba, vports); 6613 return ret; 6614} 6615 6616/** 6617 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6618 * @phba: Pointer to hba context object. 6619 * @mboxq: Pointer to mailbox object. 6620 * 6621 * This function frees memory associated with the mailbox command. 6622 */ 6623void 6624lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6625{ 6626 struct lpfc_vport *vport = mboxq->vport; 6627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6628 6629 if (mboxq->u.mb.mbxStatus) { 6630 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6631 "2555 UNREG_VFI mbxStatus error x%x " 6632 "HBA state x%x\n", 6633 mboxq->u.mb.mbxStatus, vport->port_state); 6634 } 6635 spin_lock_irq(shost->host_lock); 6636 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6637 spin_unlock_irq(shost->host_lock); 6638 mempool_free(mboxq, phba->mbox_mem_pool); 6639 return; 6640} 6641 6642/** 6643 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6644 * @phba: Pointer to hba context object. 6645 * @mboxq: Pointer to mailbox object. 6646 * 6647 * This function frees memory associated with the mailbox command. 6648 */ 6649static void 6650lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6651{ 6652 struct lpfc_vport *vport = mboxq->vport; 6653 6654 if (mboxq->u.mb.mbxStatus) { 6655 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6656 "2550 UNREG_FCFI mbxStatus error x%x " 6657 "HBA state x%x\n", 6658 mboxq->u.mb.mbxStatus, vport->port_state); 6659 } 6660 mempool_free(mboxq, phba->mbox_mem_pool); 6661 return; 6662} 6663 6664/** 6665 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6666 * @phba: Pointer to hba context object. 6667 * 6668 * This function prepare the HBA for unregistering the currently registered 6669 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6670 * VFIs. 6671 */ 6672int 6673lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6674{ 6675 struct lpfc_vport **vports; 6676 struct lpfc_nodelist *ndlp; 6677 struct Scsi_Host *shost; 6678 int i = 0, rc; 6679 6680 /* Unregister RPIs */ 6681 if (lpfc_fcf_inuse(phba)) 6682 lpfc_unreg_hba_rpis(phba); 6683 6684 /* At this point, all discovery is aborted */ 6685 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6686 6687 /* Unregister VPIs */ 6688 vports = lpfc_create_vport_work_array(phba); 6689 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6690 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6691 /* Stop FLOGI/FDISC retries */ 6692 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6693 if (ndlp) 6694 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6695 lpfc_cleanup_pending_mbox(vports[i]); 6696 if (phba->sli_rev == LPFC_SLI_REV4) 6697 lpfc_sli4_unreg_all_rpis(vports[i]); 6698 lpfc_mbx_unreg_vpi(vports[i]); 6699 shost = lpfc_shost_from_vport(vports[i]); 6700 spin_lock_irq(shost->host_lock); 6701 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6702 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6703 spin_unlock_irq(shost->host_lock); 6704 } 6705 lpfc_destroy_vport_work_array(phba, vports); 6706 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6707 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6708 if (ndlp) 6709 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6710 lpfc_cleanup_pending_mbox(phba->pport); 6711 if (phba->sli_rev == LPFC_SLI_REV4) 6712 lpfc_sli4_unreg_all_rpis(phba->pport); 6713 lpfc_mbx_unreg_vpi(phba->pport); 6714 shost = lpfc_shost_from_vport(phba->pport); 6715 spin_lock_irq(shost->host_lock); 6716 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6717 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6718 spin_unlock_irq(shost->host_lock); 6719 } 6720 6721 /* Cleanup any outstanding ELS commands */ 6722 lpfc_els_flush_all_cmd(phba); 6723 6724 /* Unregister the physical port VFI */ 6725 rc = lpfc_issue_unreg_vfi(phba->pport); 6726 return rc; 6727} 6728 6729/** 6730 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6731 * @phba: Pointer to hba context object. 6732 * 6733 * This function issues synchronous unregister FCF mailbox command to HBA to 6734 * unregister the currently registered FCF record. The driver does not reset 6735 * the driver FCF usage state flags. 6736 * 6737 * Return 0 if successfully issued, none-zero otherwise. 6738 */ 6739int 6740lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6741{ 6742 LPFC_MBOXQ_t *mbox; 6743 int rc; 6744 6745 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6746 if (!mbox) { 6747 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6748 "2551 UNREG_FCFI mbox allocation failed" 6749 "HBA state x%x\n", phba->pport->port_state); 6750 return -ENOMEM; 6751 } 6752 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6753 mbox->vport = phba->pport; 6754 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6755 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6756 6757 if (rc == MBX_NOT_FINISHED) { 6758 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6759 "2552 Unregister FCFI command failed rc x%x " 6760 "HBA state x%x\n", 6761 rc, phba->pport->port_state); 6762 return -EINVAL; 6763 } 6764 return 0; 6765} 6766 6767/** 6768 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6769 * @phba: Pointer to hba context object. 6770 * 6771 * This function unregisters the currently reigstered FCF. This function 6772 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6773 */ 6774void 6775lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6776{ 6777 int rc; 6778 6779 /* Preparation for unregistering fcf */ 6780 rc = lpfc_unregister_fcf_prep(phba); 6781 if (rc) { 6782 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6783 "2748 Failed to prepare for unregistering " 6784 "HBA's FCF record: rc=%d\n", rc); 6785 return; 6786 } 6787 6788 /* Now, unregister FCF record and reset HBA FCF state */ 6789 rc = lpfc_sli4_unregister_fcf(phba); 6790 if (rc) 6791 return; 6792 /* Reset HBA FCF states after successful unregister FCF */ 6793 phba->fcf.fcf_flag = 0; 6794 phba->fcf.current_rec.flag = 0; 6795 6796 /* 6797 * If driver is not unloading, check if there is any other 6798 * FCF record that can be used for discovery. 6799 */ 6800 if ((phba->pport->load_flag & FC_UNLOADING) || 6801 (phba->link_state < LPFC_LINK_UP)) 6802 return; 6803 6804 /* This is considered as the initial FCF discovery scan */ 6805 spin_lock_irq(&phba->hbalock); 6806 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6807 spin_unlock_irq(&phba->hbalock); 6808 6809 /* Reset FCF roundrobin bmask for new discovery */ 6810 lpfc_sli4_clear_fcf_rr_bmask(phba); 6811 6812 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6813 6814 if (rc) { 6815 spin_lock_irq(&phba->hbalock); 6816 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6817 spin_unlock_irq(&phba->hbalock); 6818 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6819 "2553 lpfc_unregister_unused_fcf failed " 6820 "to read FCF record HBA state x%x\n", 6821 phba->pport->port_state); 6822 } 6823} 6824 6825/** 6826 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6827 * @phba: Pointer to hba context object. 6828 * 6829 * This function just unregisters the currently reigstered FCF. It does not 6830 * try to find another FCF for discovery. 6831 */ 6832void 6833lpfc_unregister_fcf(struct lpfc_hba *phba) 6834{ 6835 int rc; 6836 6837 /* Preparation for unregistering fcf */ 6838 rc = lpfc_unregister_fcf_prep(phba); 6839 if (rc) { 6840 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6841 "2749 Failed to prepare for unregistering " 6842 "HBA's FCF record: rc=%d\n", rc); 6843 return; 6844 } 6845 6846 /* Now, unregister FCF record and reset HBA FCF state */ 6847 rc = lpfc_sli4_unregister_fcf(phba); 6848 if (rc) 6849 return; 6850 /* Set proper HBA FCF states after successful unregister FCF */ 6851 spin_lock_irq(&phba->hbalock); 6852 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6853 spin_unlock_irq(&phba->hbalock); 6854} 6855 6856/** 6857 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6858 * @phba: Pointer to hba context object. 6859 * 6860 * This function check if there are any connected remote port for the FCF and 6861 * if all the devices are disconnected, this function unregister FCFI. 6862 * This function also tries to use another FCF for discovery. 6863 */ 6864void 6865lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6866{ 6867 /* 6868 * If HBA is not running in FIP mode, if HBA does not support 6869 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6870 * registered, do nothing. 6871 */ 6872 spin_lock_irq(&phba->hbalock); 6873 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6874 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6875 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6876 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6877 (phba->pport->port_state == LPFC_FLOGI)) { 6878 spin_unlock_irq(&phba->hbalock); 6879 return; 6880 } 6881 spin_unlock_irq(&phba->hbalock); 6882 6883 if (lpfc_fcf_inuse(phba)) 6884 return; 6885 6886 lpfc_unregister_fcf_rescan(phba); 6887} 6888 6889/** 6890 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6891 * @phba: Pointer to hba context object. 6892 * @buff: Buffer containing the FCF connection table as in the config 6893 * region. 6894 * This function create driver data structure for the FCF connection 6895 * record table read from config region 23. 6896 */ 6897static void 6898lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6899 uint8_t *buff) 6900{ 6901 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6902 struct lpfc_fcf_conn_hdr *conn_hdr; 6903 struct lpfc_fcf_conn_rec *conn_rec; 6904 uint32_t record_count; 6905 int i; 6906 6907 /* Free the current connect table */ 6908 list_for_each_entry_safe(conn_entry, next_conn_entry, 6909 &phba->fcf_conn_rec_list, list) { 6910 list_del_init(&conn_entry->list); 6911 kfree(conn_entry); 6912 } 6913 6914 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6915 record_count = conn_hdr->length * sizeof(uint32_t)/ 6916 sizeof(struct lpfc_fcf_conn_rec); 6917 6918 conn_rec = (struct lpfc_fcf_conn_rec *) 6919 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6920 6921 for (i = 0; i < record_count; i++) { 6922 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6923 continue; 6924 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6925 GFP_KERNEL); 6926 if (!conn_entry) { 6927 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6928 "2566 Failed to allocate connection" 6929 " table entry\n"); 6930 return; 6931 } 6932 6933 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6934 sizeof(struct lpfc_fcf_conn_rec)); 6935 list_add_tail(&conn_entry->list, 6936 &phba->fcf_conn_rec_list); 6937 } 6938 6939 if (!list_empty(&phba->fcf_conn_rec_list)) { 6940 i = 0; 6941 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6942 list) { 6943 conn_rec = &conn_entry->conn_rec; 6944 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6945 "3345 FCF connection list rec[%02d]: " 6946 "flags:x%04x, vtag:x%04x, " 6947 "fabric_name:x%02x:%02x:%02x:%02x:" 6948 "%02x:%02x:%02x:%02x, " 6949 "switch_name:x%02x:%02x:%02x:%02x:" 6950 "%02x:%02x:%02x:%02x\n", i++, 6951 conn_rec->flags, conn_rec->vlan_tag, 6952 conn_rec->fabric_name[0], 6953 conn_rec->fabric_name[1], 6954 conn_rec->fabric_name[2], 6955 conn_rec->fabric_name[3], 6956 conn_rec->fabric_name[4], 6957 conn_rec->fabric_name[5], 6958 conn_rec->fabric_name[6], 6959 conn_rec->fabric_name[7], 6960 conn_rec->switch_name[0], 6961 conn_rec->switch_name[1], 6962 conn_rec->switch_name[2], 6963 conn_rec->switch_name[3], 6964 conn_rec->switch_name[4], 6965 conn_rec->switch_name[5], 6966 conn_rec->switch_name[6], 6967 conn_rec->switch_name[7]); 6968 } 6969 } 6970} 6971 6972/** 6973 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6974 * @phba: Pointer to hba context object. 6975 * @buff: Buffer containing the FCoE parameter data structure. 6976 * 6977 * This function update driver data structure with config 6978 * parameters read from config region 23. 6979 */ 6980static void 6981lpfc_read_fcoe_param(struct lpfc_hba *phba, 6982 uint8_t *buff) 6983{ 6984 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6985 struct lpfc_fcoe_params *fcoe_param; 6986 6987 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6988 buff; 6989 fcoe_param = (struct lpfc_fcoe_params *) 6990 (buff + sizeof(struct lpfc_fip_param_hdr)); 6991 6992 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6993 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6994 return; 6995 6996 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6997 phba->valid_vlan = 1; 6998 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6999 0xFFF; 7000 } 7001 7002 phba->fc_map[0] = fcoe_param->fc_map[0]; 7003 phba->fc_map[1] = fcoe_param->fc_map[1]; 7004 phba->fc_map[2] = fcoe_param->fc_map[2]; 7005 return; 7006} 7007 7008/** 7009 * lpfc_get_rec_conf23 - Get a record type in config region data. 7010 * @buff: Buffer containing config region 23 data. 7011 * @size: Size of the data buffer. 7012 * @rec_type: Record type to be searched. 7013 * 7014 * This function searches config region data to find the beginning 7015 * of the record specified by record_type. If record found, this 7016 * function return pointer to the record else return NULL. 7017 */ 7018static uint8_t * 7019lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 7020{ 7021 uint32_t offset = 0, rec_length; 7022 7023 if ((buff[0] == LPFC_REGION23_LAST_REC) || 7024 (size < sizeof(uint32_t))) 7025 return NULL; 7026 7027 rec_length = buff[offset + 1]; 7028 7029 /* 7030 * One TLV record has one word header and number of data words 7031 * specified in the rec_length field of the record header. 7032 */ 7033 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 7034 <= size) { 7035 if (buff[offset] == rec_type) 7036 return &buff[offset]; 7037 7038 if (buff[offset] == LPFC_REGION23_LAST_REC) 7039 return NULL; 7040 7041 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 7042 rec_length = buff[offset + 1]; 7043 } 7044 return NULL; 7045} 7046 7047/** 7048 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 7049 * @phba: Pointer to lpfc_hba data structure. 7050 * @buff: Buffer containing config region 23 data. 7051 * @size: Size of the data buffer. 7052 * 7053 * This function parses the FCoE config parameters in config region 23 and 7054 * populate driver data structure with the parameters. 7055 */ 7056void 7057lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 7058 uint8_t *buff, 7059 uint32_t size) 7060{ 7061 uint32_t offset = 0; 7062 uint8_t *rec_ptr; 7063 7064 /* 7065 * If data size is less than 2 words signature and version cannot be 7066 * verified. 7067 */ 7068 if (size < 2*sizeof(uint32_t)) 7069 return; 7070 7071 /* Check the region signature first */ 7072 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 7073 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7074 "2567 Config region 23 has bad signature\n"); 7075 return; 7076 } 7077 7078 offset += 4; 7079 7080 /* Check the data structure version */ 7081 if (buff[offset] != LPFC_REGION23_VERSION) { 7082 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7083 "2568 Config region 23 has bad version\n"); 7084 return; 7085 } 7086 offset += 4; 7087 7088 /* Read FCoE param record */ 7089 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7090 size - offset, FCOE_PARAM_TYPE); 7091 if (rec_ptr) 7092 lpfc_read_fcoe_param(phba, rec_ptr); 7093 7094 /* Read FCF connection table */ 7095 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7096 size - offset, FCOE_CONN_TBL_TYPE); 7097 if (rec_ptr) 7098 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7099 7100} 7101