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