1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * 5 * ���Broadcom��� refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24#include <linux/blkdev.h> 25#include <linux/delay.h> 26#include <linux/slab.h> 27#include <linux/pci.h> 28#include <linux/kthread.h> 29#include <linux/interrupt.h> 30#include <linux/lockdep.h> 31#include <linux/utsname.h> 32 33#include <scsi/scsi.h> 34#include <scsi/scsi_device.h> 35#include <scsi/scsi_host.h> 36#include <scsi/scsi_transport_fc.h> 37#include <scsi/fc/fc_fs.h> 38 39#include "lpfc_hw4.h" 40#include "lpfc_hw.h" 41#include "lpfc_nl.h" 42#include "lpfc_disc.h" 43#include "lpfc_sli.h" 44#include "lpfc_sli4.h" 45#include "lpfc.h" 46#include "lpfc_scsi.h" 47#include "lpfc_nvme.h" 48#include "lpfc_logmsg.h" 49#include "lpfc_crtn.h" 50#include "lpfc_vport.h" 51#include "lpfc_debugfs.h" 52 53/* AlpaArray for assignment of scsid for scan-down and bind_method */ 54static uint8_t lpfcAlpaArray[] = { 55 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 56 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 57 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 58 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 59 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 60 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 61 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 62 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 63 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 64 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 65 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 66 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 67 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 68}; 69 70static void lpfc_disc_timeout_handler(struct lpfc_vport *); 71static void lpfc_disc_flush_list(struct lpfc_vport *vport); 72static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 73static int lpfc_fcf_inuse(struct lpfc_hba *); 74static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *); 75static void lpfc_check_inactive_vmid(struct lpfc_hba *phba); 76static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba); 77 78static int 79lpfc_valid_xpt_node(struct lpfc_nodelist *ndlp) 80{ 81 if (ndlp->nlp_fc4_type || 82 ndlp->nlp_type & NLP_FABRIC) 83 return 1; 84 return 0; 85} 86/* The source of a terminate rport I/O is either a dev_loss_tmo 87 * event or a call to fc_remove_host. While the rport should be 88 * valid during these downcalls, the transport can call twice 89 * in a single event. This routine provides somoe protection 90 * as the NDLP isn't really free, just released to the pool. 91 */ 92static int 93lpfc_rport_invalid(struct fc_rport *rport) 94{ 95 struct lpfc_rport_data *rdata; 96 struct lpfc_nodelist *ndlp; 97 98 if (!rport) { 99 pr_err("**** %s: NULL rport, exit.\n", __func__); 100 return -EINVAL; 101 } 102 103 rdata = rport->dd_data; 104 if (!rdata) { 105 pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n", 106 __func__, rport, rport->scsi_target_id); 107 return -EINVAL; 108 } 109 110 ndlp = rdata->pnode; 111 if (!rdata->pnode) { 112 pr_info("**** %s: NULL ndlp on rport x%px SID x%x\n", 113 __func__, rport, rport->scsi_target_id); 114 return -EINVAL; 115 } 116 117 if (!ndlp->vport) { 118 pr_err("**** %s: Null vport on ndlp x%px, DID x%x rport x%px " 119 "SID x%x\n", __func__, ndlp, ndlp->nlp_DID, rport, 120 rport->scsi_target_id); 121 return -EINVAL; 122 } 123 return 0; 124} 125 126void 127lpfc_terminate_rport_io(struct fc_rport *rport) 128{ 129 struct lpfc_rport_data *rdata; 130 struct lpfc_nodelist *ndlp; 131 struct lpfc_vport *vport; 132 133 if (lpfc_rport_invalid(rport)) 134 return; 135 136 rdata = rport->dd_data; 137 ndlp = rdata->pnode; 138 vport = ndlp->vport; 139 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 140 "rport terminate: sid:x%x did:x%x flg:x%x", 141 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 142 143 if (ndlp->nlp_sid != NLP_NO_SID) 144 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 145} 146 147/* 148 * This function will be called when dev_loss_tmo fire. 149 */ 150void 151lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 152{ 153 struct lpfc_nodelist *ndlp; 154 struct lpfc_vport *vport; 155 struct lpfc_hba *phba; 156 struct lpfc_work_evt *evtp; 157 unsigned long iflags; 158 159 ndlp = ((struct lpfc_rport_data *)rport->dd_data)->pnode; 160 if (!ndlp) 161 return; 162 163 vport = ndlp->vport; 164 phba = vport->phba; 165 166 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 167 "rport devlosscb: sid:x%x did:x%x flg:x%x", 168 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 169 170 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 171 "3181 dev_loss_callbk x%06x, rport x%px flg x%x " 172 "load_flag x%lx refcnt %u state %d xpt x%x\n", 173 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag, 174 vport->load_flag, kref_read(&ndlp->kref), 175 ndlp->nlp_state, ndlp->fc4_xpt_flags); 176 177 /* Don't schedule a worker thread event if the vport is going down. */ 178 if (test_bit(FC_UNLOADING, &vport->load_flag)) { 179 spin_lock_irqsave(&ndlp->lock, iflags); 180 ndlp->rport = NULL; 181 182 /* The scsi_transport is done with the rport so lpfc cannot 183 * call to unregister. Remove the scsi transport reference 184 * and clean up the SCSI transport node details. 185 */ 186 if (ndlp->fc4_xpt_flags & (NLP_XPT_REGD | SCSI_XPT_REGD)) { 187 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; 188 189 /* NVME transport-registered rports need the 190 * NLP_XPT_REGD flag to complete an unregister. 191 */ 192 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) 193 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; 194 spin_unlock_irqrestore(&ndlp->lock, iflags); 195 lpfc_nlp_put(ndlp); 196 spin_lock_irqsave(&ndlp->lock, iflags); 197 } 198 199 /* Only 1 thread can drop the initial node reference. If 200 * another thread has set NLP_DROPPED, this thread is done. 201 */ 202 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD) && 203 !(ndlp->nlp_flag & NLP_DROPPED)) { 204 ndlp->nlp_flag |= NLP_DROPPED; 205 spin_unlock_irqrestore(&ndlp->lock, iflags); 206 lpfc_nlp_put(ndlp); 207 return; 208 } 209 210 spin_unlock_irqrestore(&ndlp->lock, iflags); 211 return; 212 } 213 214 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 215 return; 216 217 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 218 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 219 "6789 rport name %llx != node port name %llx", 220 rport->port_name, 221 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 222 223 evtp = &ndlp->dev_loss_evt; 224 225 if (!list_empty(&evtp->evt_listp)) { 226 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 227 "6790 rport name %llx dev_loss_evt pending\n", 228 rport->port_name); 229 return; 230 } 231 232 spin_lock_irqsave(&ndlp->lock, iflags); 233 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 234 235 /* If there is a PLOGI in progress, and we are in a 236 * NLP_NPR_2B_DISC state, don't turn off the flag. 237 */ 238 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 239 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 240 241 /* 242 * The backend does not expect any more calls associated with this 243 * rport. Remove the association between rport and ndlp. 244 */ 245 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; 246 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; 247 ndlp->rport = NULL; 248 spin_unlock_irqrestore(&ndlp->lock, iflags); 249 250 if (phba->worker_thread) { 251 /* We need to hold the node by incrementing the reference 252 * count until this queued work is done 253 */ 254 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 255 256 spin_lock_irqsave(&phba->hbalock, iflags); 257 if (evtp->evt_arg1) { 258 evtp->evt = LPFC_EVT_DEV_LOSS; 259 list_add_tail(&evtp->evt_listp, &phba->work_list); 260 spin_unlock_irqrestore(&phba->hbalock, iflags); 261 lpfc_worker_wake_up(phba); 262 return; 263 } 264 spin_unlock_irqrestore(&phba->hbalock, iflags); 265 } else { 266 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 267 "3188 worker thread is stopped %s x%06x, " 268 " rport x%px flg x%x load_flag x%lx refcnt " 269 "%d\n", __func__, ndlp->nlp_DID, 270 ndlp->rport, ndlp->nlp_flag, 271 vport->load_flag, kref_read(&ndlp->kref)); 272 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) { 273 spin_lock_irqsave(&ndlp->lock, iflags); 274 /* Node is in dev loss. No further transaction. */ 275 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 276 spin_unlock_irqrestore(&ndlp->lock, iflags); 277 lpfc_disc_state_machine(vport, ndlp, NULL, 278 NLP_EVT_DEVICE_RM); 279 } 280 } 281} 282 283/** 284 * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport 285 * @vport: Pointer to vport context object. 286 * 287 * This function checks for idle VMID entries related to a particular vport. If 288 * found unused/idle, free them accordingly. 289 **/ 290static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport) 291{ 292 u16 keep; 293 u32 difftime = 0, r, bucket; 294 u64 *lta; 295 int cpu; 296 struct lpfc_vmid *vmp; 297 298 write_lock(&vport->vmid_lock); 299 300 if (!vport->cur_vmid_cnt) 301 goto out; 302 303 /* iterate through the table */ 304 hash_for_each(vport->hash_table, bucket, vmp, hnode) { 305 keep = 0; 306 if (vmp->flag & LPFC_VMID_REGISTERED) { 307 /* check if the particular VMID is in use */ 308 /* for all available per cpu variable */ 309 for_each_possible_cpu(cpu) { 310 /* if last access time is less than timeout */ 311 lta = per_cpu_ptr(vmp->last_io_time, cpu); 312 if (!lta) 313 continue; 314 difftime = (jiffies) - (*lta); 315 if ((vport->vmid_inactivity_timeout * 316 JIFFIES_PER_HR) > difftime) { 317 keep = 1; 318 break; 319 } 320 } 321 322 /* if none of the cpus have been used by the vm, */ 323 /* remove the entry if already registered */ 324 if (!keep) { 325 /* mark the entry for deregistration */ 326 vmp->flag = LPFC_VMID_DE_REGISTER; 327 write_unlock(&vport->vmid_lock); 328 if (vport->vmid_priority_tagging) 329 r = lpfc_vmid_uvem(vport, vmp, false); 330 else 331 r = lpfc_vmid_cmd(vport, 332 SLI_CTAS_DAPP_IDENT, 333 vmp); 334 335 /* decrement number of active vms and mark */ 336 /* entry in slot as free */ 337 write_lock(&vport->vmid_lock); 338 if (!r) { 339 struct lpfc_vmid *ht = vmp; 340 341 vport->cur_vmid_cnt--; 342 ht->flag = LPFC_VMID_SLOT_FREE; 343 free_percpu(ht->last_io_time); 344 ht->last_io_time = NULL; 345 hash_del(&ht->hnode); 346 } 347 } 348 } 349 } 350 out: 351 write_unlock(&vport->vmid_lock); 352} 353 354/** 355 * lpfc_check_inactive_vmid - VMID inactivity checker 356 * @phba: Pointer to hba context object. 357 * 358 * This function is called from the worker thread to determine if an entry in 359 * the VMID table can be released since there was no I/O activity seen from that 360 * particular VM for the specified time. When this happens, the entry in the 361 * table is released and also the resources on the switch cleared. 362 **/ 363 364static void lpfc_check_inactive_vmid(struct lpfc_hba *phba) 365{ 366 struct lpfc_vport *vport; 367 struct lpfc_vport **vports; 368 int i; 369 370 vports = lpfc_create_vport_work_array(phba); 371 if (!vports) 372 return; 373 374 for (i = 0; i <= phba->max_vports; i++) { 375 if ((!vports[i]) && (i == 0)) 376 vport = phba->pport; 377 else 378 vport = vports[i]; 379 if (!vport) 380 break; 381 382 lpfc_check_inactive_vmid_one(vport); 383 } 384 lpfc_destroy_vport_work_array(phba, vports); 385} 386 387/** 388 * lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss 389 * @vport: Pointer to vport object. 390 * @ndlp: Pointer to remote node object. 391 * 392 * If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of 393 * node during dev_loss_tmo processing, then this function restores the nlp_put 394 * kref decrement from lpfc_dev_loss_tmo_handler. 395 **/ 396void 397lpfc_check_nlp_post_devloss(struct lpfc_vport *vport, 398 struct lpfc_nodelist *ndlp) 399{ 400 unsigned long iflags; 401 402 spin_lock_irqsave(&ndlp->lock, iflags); 403 if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) { 404 ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS; 405 spin_unlock_irqrestore(&ndlp->lock, iflags); 406 lpfc_nlp_get(ndlp); 407 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE, 408 "8438 Devloss timeout reversed on DID x%x " 409 "refcnt %d ndlp %p flag x%x " 410 "port_state = x%x\n", 411 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp, 412 ndlp->nlp_flag, vport->port_state); 413 return; 414 } 415 spin_unlock_irqrestore(&ndlp->lock, iflags); 416} 417 418/** 419 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 420 * @ndlp: Pointer to remote node object. 421 * 422 * This function is called from the worker thread when devloss timeout timer 423 * expires. For SLI4 host, this routine shall return 1 when at lease one 424 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 425 * routine shall return 0 when there is no remote node is still in use of FCF 426 * when devloss timeout happened to this @ndlp. 427 **/ 428static int 429lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 430{ 431 struct lpfc_vport *vport; 432 struct lpfc_hba *phba; 433 uint8_t *name; 434 int warn_on = 0; 435 int fcf_inuse = 0; 436 bool recovering = false; 437 struct fc_vport *fc_vport = NULL; 438 unsigned long iflags; 439 440 vport = ndlp->vport; 441 name = (uint8_t *)&ndlp->nlp_portname; 442 phba = vport->phba; 443 444 if (phba->sli_rev == LPFC_SLI_REV4) 445 fcf_inuse = lpfc_fcf_inuse(phba); 446 447 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 448 "rport devlosstmo:did:x%x type:x%x id:x%x", 449 ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid); 450 451 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 452 "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n", 453 __func__, ndlp->nlp_DID, ndlp->nlp_flag, 454 ndlp->fc4_xpt_flags, kref_read(&ndlp->kref)); 455 456 /* If the driver is recovering the rport, ignore devloss. */ 457 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 458 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 459 "0284 Devloss timeout Ignored on " 460 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 461 "NPort x%x\n", 462 *name, *(name+1), *(name+2), *(name+3), 463 *(name+4), *(name+5), *(name+6), *(name+7), 464 ndlp->nlp_DID); 465 466 spin_lock_irqsave(&ndlp->lock, iflags); 467 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 468 spin_unlock_irqrestore(&ndlp->lock, iflags); 469 return fcf_inuse; 470 } 471 472 /* Fabric nodes are done. */ 473 if (ndlp->nlp_type & NLP_FABRIC) { 474 spin_lock_irqsave(&ndlp->lock, iflags); 475 476 /* The driver has to account for a race between any fabric 477 * node that's in recovery when dev_loss_tmo expires. When this 478 * happens, the driver has to allow node recovery. 479 */ 480 switch (ndlp->nlp_DID) { 481 case Fabric_DID: 482 fc_vport = vport->fc_vport; 483 if (fc_vport) { 484 /* NPIV path. */ 485 if (fc_vport->vport_state == 486 FC_VPORT_INITIALIZING) 487 recovering = true; 488 } else { 489 /* Physical port path. */ 490 if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) 491 recovering = true; 492 } 493 break; 494 case Fabric_Cntl_DID: 495 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 496 recovering = true; 497 break; 498 case FDMI_DID: 499 fallthrough; 500 case NameServer_DID: 501 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 502 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) 503 recovering = true; 504 break; 505 default: 506 /* Ensure the nlp_DID at least has the correct prefix. 507 * The fabric domain controller's last three nibbles 508 * vary so we handle it in the default case. 509 */ 510 if (ndlp->nlp_DID & Fabric_DID_MASK) { 511 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 512 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) 513 recovering = true; 514 } 515 break; 516 } 517 spin_unlock_irqrestore(&ndlp->lock, iflags); 518 519 /* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing 520 * the following lpfc_nlp_put is necessary after fabric node is 521 * recovered. 522 */ 523 if (recovering) { 524 lpfc_printf_vlog(vport, KERN_INFO, 525 LOG_DISCOVERY | LOG_NODE, 526 "8436 Devloss timeout marked on " 527 "DID x%x refcnt %d ndlp %p " 528 "flag x%x port_state = x%x\n", 529 ndlp->nlp_DID, kref_read(&ndlp->kref), 530 ndlp, ndlp->nlp_flag, 531 vport->port_state); 532 spin_lock_irqsave(&ndlp->lock, iflags); 533 ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS; 534 spin_unlock_irqrestore(&ndlp->lock, iflags); 535 } else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 536 /* Fabric node fully recovered before this dev_loss_tmo 537 * queue work is processed. Thus, ignore the 538 * dev_loss_tmo event. 539 */ 540 lpfc_printf_vlog(vport, KERN_INFO, 541 LOG_DISCOVERY | LOG_NODE, 542 "8437 Devloss timeout ignored on " 543 "DID x%x refcnt %d ndlp %p " 544 "flag x%x port_state = x%x\n", 545 ndlp->nlp_DID, kref_read(&ndlp->kref), 546 ndlp, ndlp->nlp_flag, 547 vport->port_state); 548 return fcf_inuse; 549 } 550 551 spin_lock_irqsave(&ndlp->lock, iflags); 552 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 553 spin_unlock_irqrestore(&ndlp->lock, iflags); 554 lpfc_nlp_put(ndlp); 555 return fcf_inuse; 556 } 557 558 if (ndlp->nlp_sid != NLP_NO_SID) { 559 warn_on = 1; 560 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 561 } 562 563 if (warn_on) { 564 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 565 "0203 Devloss timeout on " 566 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 567 "NPort x%06x Data: x%x x%x x%x refcnt %d\n", 568 *name, *(name+1), *(name+2), *(name+3), 569 *(name+4), *(name+5), *(name+6), *(name+7), 570 ndlp->nlp_DID, ndlp->nlp_flag, 571 ndlp->nlp_state, ndlp->nlp_rpi, 572 kref_read(&ndlp->kref)); 573 } else { 574 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT, 575 "0204 Devloss timeout on " 576 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 577 "NPort x%06x Data: x%x x%x x%x\n", 578 *name, *(name+1), *(name+2), *(name+3), 579 *(name+4), *(name+5), *(name+6), *(name+7), 580 ndlp->nlp_DID, ndlp->nlp_flag, 581 ndlp->nlp_state, ndlp->nlp_rpi); 582 } 583 spin_lock_irqsave(&ndlp->lock, iflags); 584 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 585 spin_unlock_irqrestore(&ndlp->lock, iflags); 586 587 /* If we are devloss, but we are in the process of rediscovering the 588 * ndlp, don't issue a NLP_EVT_DEVICE_RM event. 589 */ 590 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 591 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) { 592 return fcf_inuse; 593 } 594 595 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) 596 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 597 598 return fcf_inuse; 599} 600 601static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba) 602{ 603 struct lpfc_vport *vport; 604 struct lpfc_vport **vports; 605 int i; 606 607 vports = lpfc_create_vport_work_array(phba); 608 if (!vports) 609 return; 610 611 for (i = 0; i <= phba->max_vports; i++) { 612 if ((!vports[i]) && (i == 0)) 613 vport = phba->pport; 614 else 615 vport = vports[i]; 616 if (!vport) 617 break; 618 619 if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) { 620 if (!lpfc_issue_els_qfpa(vport)) 621 vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA; 622 } 623 } 624 lpfc_destroy_vport_work_array(phba, vports); 625} 626 627/** 628 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 629 * @phba: Pointer to hba context object. 630 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 631 * @nlp_did: remote node identifer with devloss timeout. 632 * 633 * This function is called from the worker thread after invoking devloss 634 * timeout handler and releasing the reference count for the ndlp with 635 * which the devloss timeout was handled for SLI4 host. For the devloss 636 * timeout of the last remote node which had been in use of FCF, when this 637 * routine is invoked, it shall be guaranteed that none of the remote are 638 * in-use of FCF. When devloss timeout to the last remote using the FCF, 639 * if the FIP engine is neither in FCF table scan process nor roundrobin 640 * failover process, the in-use FCF shall be unregistered. If the FIP 641 * engine is in FCF discovery process, the devloss timeout state shall 642 * be set for either the FCF table scan process or roundrobin failover 643 * process to unregister the in-use FCF. 644 **/ 645static void 646lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 647 uint32_t nlp_did) 648{ 649 /* If devloss timeout happened to a remote node when FCF had no 650 * longer been in-use, do nothing. 651 */ 652 if (!fcf_inuse) 653 return; 654 655 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 656 spin_lock_irq(&phba->hbalock); 657 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 658 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 659 spin_unlock_irq(&phba->hbalock); 660 return; 661 } 662 phba->hba_flag |= HBA_DEVLOSS_TMO; 663 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 664 "2847 Last remote node (x%x) using " 665 "FCF devloss tmo\n", nlp_did); 666 } 667 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 668 spin_unlock_irq(&phba->hbalock); 669 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 670 "2868 Devloss tmo to FCF rediscovery " 671 "in progress\n"); 672 return; 673 } 674 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 675 spin_unlock_irq(&phba->hbalock); 676 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 677 "2869 Devloss tmo to idle FIP engine, " 678 "unreg in-use FCF and rescan.\n"); 679 /* Unregister in-use FCF and rescan */ 680 lpfc_unregister_fcf_rescan(phba); 681 return; 682 } 683 spin_unlock_irq(&phba->hbalock); 684 if (phba->hba_flag & FCF_TS_INPROG) 685 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 686 "2870 FCF table scan in progress\n"); 687 if (phba->hba_flag & FCF_RR_INPROG) 688 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 689 "2871 FLOGI roundrobin FCF failover " 690 "in progress\n"); 691 } 692 lpfc_unregister_unused_fcf(phba); 693} 694 695/** 696 * lpfc_alloc_fast_evt - Allocates data structure for posting event 697 * @phba: Pointer to hba context object. 698 * 699 * This function is called from the functions which need to post 700 * events from interrupt context. This function allocates data 701 * structure required for posting event. It also keeps track of 702 * number of events pending and prevent event storm when there are 703 * too many events. 704 **/ 705struct lpfc_fast_path_event * 706lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 707 struct lpfc_fast_path_event *ret; 708 709 /* If there are lot of fast event do not exhaust memory due to this */ 710 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 711 return NULL; 712 713 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 714 GFP_ATOMIC); 715 if (ret) { 716 atomic_inc(&phba->fast_event_count); 717 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 718 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 719 } 720 return ret; 721} 722 723/** 724 * lpfc_free_fast_evt - Frees event data structure 725 * @phba: Pointer to hba context object. 726 * @evt: Event object which need to be freed. 727 * 728 * This function frees the data structure required for posting 729 * events. 730 **/ 731void 732lpfc_free_fast_evt(struct lpfc_hba *phba, 733 struct lpfc_fast_path_event *evt) { 734 735 atomic_dec(&phba->fast_event_count); 736 kfree(evt); 737} 738 739/** 740 * lpfc_send_fastpath_evt - Posts events generated from fast path 741 * @phba: Pointer to hba context object. 742 * @evtp: Event data structure. 743 * 744 * This function is called from worker thread, when the interrupt 745 * context need to post an event. This function posts the event 746 * to fc transport netlink interface. 747 **/ 748static void 749lpfc_send_fastpath_evt(struct lpfc_hba *phba, 750 struct lpfc_work_evt *evtp) 751{ 752 unsigned long evt_category, evt_sub_category; 753 struct lpfc_fast_path_event *fast_evt_data; 754 char *evt_data; 755 uint32_t evt_data_size; 756 struct Scsi_Host *shost; 757 758 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 759 work_evt); 760 761 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 762 evt_sub_category = (unsigned long) fast_evt_data->un. 763 fabric_evt.subcategory; 764 shost = lpfc_shost_from_vport(fast_evt_data->vport); 765 if (evt_category == FC_REG_FABRIC_EVENT) { 766 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 767 evt_data = (char *) &fast_evt_data->un.read_check_error; 768 evt_data_size = sizeof(fast_evt_data->un. 769 read_check_error); 770 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 771 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 772 evt_data = (char *) &fast_evt_data->un.fabric_evt; 773 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 774 } else { 775 lpfc_free_fast_evt(phba, fast_evt_data); 776 return; 777 } 778 } else if (evt_category == FC_REG_SCSI_EVENT) { 779 switch (evt_sub_category) { 780 case LPFC_EVENT_QFULL: 781 case LPFC_EVENT_DEVBSY: 782 evt_data = (char *) &fast_evt_data->un.scsi_evt; 783 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 784 break; 785 case LPFC_EVENT_CHECK_COND: 786 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 787 evt_data_size = sizeof(fast_evt_data->un. 788 check_cond_evt); 789 break; 790 case LPFC_EVENT_VARQUEDEPTH: 791 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 792 evt_data_size = sizeof(fast_evt_data->un. 793 queue_depth_evt); 794 break; 795 default: 796 lpfc_free_fast_evt(phba, fast_evt_data); 797 return; 798 } 799 } else { 800 lpfc_free_fast_evt(phba, fast_evt_data); 801 return; 802 } 803 804 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 805 fc_host_post_vendor_event(shost, 806 fc_get_event_number(), 807 evt_data_size, 808 evt_data, 809 LPFC_NL_VENDOR_ID); 810 811 lpfc_free_fast_evt(phba, fast_evt_data); 812 return; 813} 814 815static void 816lpfc_work_list_done(struct lpfc_hba *phba) 817{ 818 struct lpfc_work_evt *evtp = NULL; 819 struct lpfc_nodelist *ndlp; 820 int free_evt; 821 int fcf_inuse; 822 uint32_t nlp_did; 823 bool hba_pci_err; 824 825 spin_lock_irq(&phba->hbalock); 826 while (!list_empty(&phba->work_list)) { 827 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 828 evt_listp); 829 spin_unlock_irq(&phba->hbalock); 830 hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags); 831 free_evt = 1; 832 switch (evtp->evt) { 833 case LPFC_EVT_ELS_RETRY: 834 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 835 if (!hba_pci_err) { 836 lpfc_els_retry_delay_handler(ndlp); 837 free_evt = 0; /* evt is part of ndlp */ 838 } 839 /* decrement the node reference count held 840 * for this queued work 841 */ 842 lpfc_nlp_put(ndlp); 843 break; 844 case LPFC_EVT_DEV_LOSS: 845 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 846 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 847 free_evt = 0; 848 /* decrement the node reference count held for 849 * this queued work 850 */ 851 nlp_did = ndlp->nlp_DID; 852 lpfc_nlp_put(ndlp); 853 if (phba->sli_rev == LPFC_SLI_REV4) 854 lpfc_sli4_post_dev_loss_tmo_handler(phba, 855 fcf_inuse, 856 nlp_did); 857 break; 858 case LPFC_EVT_RECOVER_PORT: 859 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 860 if (!hba_pci_err) { 861 lpfc_sli_abts_recover_port(ndlp->vport, ndlp); 862 free_evt = 0; 863 } 864 /* decrement the node reference count held for 865 * this queued work 866 */ 867 lpfc_nlp_put(ndlp); 868 break; 869 case LPFC_EVT_ONLINE: 870 if (phba->link_state < LPFC_LINK_DOWN) 871 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 872 else 873 *(int *) (evtp->evt_arg1) = 0; 874 complete((struct completion *)(evtp->evt_arg2)); 875 break; 876 case LPFC_EVT_OFFLINE_PREP: 877 if (phba->link_state >= LPFC_LINK_DOWN) 878 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 879 *(int *)(evtp->evt_arg1) = 0; 880 complete((struct completion *)(evtp->evt_arg2)); 881 break; 882 case LPFC_EVT_OFFLINE: 883 lpfc_offline(phba); 884 lpfc_sli_brdrestart(phba); 885 *(int *)(evtp->evt_arg1) = 886 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 887 lpfc_unblock_mgmt_io(phba); 888 complete((struct completion *)(evtp->evt_arg2)); 889 break; 890 case LPFC_EVT_WARM_START: 891 lpfc_offline(phba); 892 lpfc_reset_barrier(phba); 893 lpfc_sli_brdreset(phba); 894 lpfc_hba_down_post(phba); 895 *(int *)(evtp->evt_arg1) = 896 lpfc_sli_brdready(phba, HS_MBRDY); 897 lpfc_unblock_mgmt_io(phba); 898 complete((struct completion *)(evtp->evt_arg2)); 899 break; 900 case LPFC_EVT_KILL: 901 lpfc_offline(phba); 902 *(int *)(evtp->evt_arg1) 903 = (phba->pport->stopped) 904 ? 0 : lpfc_sli_brdkill(phba); 905 lpfc_unblock_mgmt_io(phba); 906 complete((struct completion *)(evtp->evt_arg2)); 907 break; 908 case LPFC_EVT_FASTPATH_MGMT_EVT: 909 lpfc_send_fastpath_evt(phba, evtp); 910 free_evt = 0; 911 break; 912 case LPFC_EVT_RESET_HBA: 913 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) 914 lpfc_reset_hba(phba); 915 break; 916 } 917 if (free_evt) 918 kfree(evtp); 919 spin_lock_irq(&phba->hbalock); 920 } 921 spin_unlock_irq(&phba->hbalock); 922 923} 924 925static void 926lpfc_work_done(struct lpfc_hba *phba) 927{ 928 struct lpfc_sli_ring *pring; 929 uint32_t ha_copy, status, control, work_port_events; 930 struct lpfc_vport **vports; 931 struct lpfc_vport *vport; 932 int i; 933 bool hba_pci_err; 934 935 hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags); 936 spin_lock_irq(&phba->hbalock); 937 ha_copy = phba->work_ha; 938 phba->work_ha = 0; 939 spin_unlock_irq(&phba->hbalock); 940 if (hba_pci_err) 941 ha_copy = 0; 942 943 /* First, try to post the next mailbox command to SLI4 device */ 944 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC && !hba_pci_err) 945 lpfc_sli4_post_async_mbox(phba); 946 947 if (ha_copy & HA_ERATT) { 948 /* Handle the error attention event */ 949 lpfc_handle_eratt(phba); 950 951 if (phba->fw_dump_cmpl) { 952 complete(phba->fw_dump_cmpl); 953 phba->fw_dump_cmpl = NULL; 954 } 955 } 956 957 if (ha_copy & HA_MBATT) 958 lpfc_sli_handle_mb_event(phba); 959 960 if (ha_copy & HA_LATT) 961 lpfc_handle_latt(phba); 962 963 /* Handle VMID Events */ 964 if (lpfc_is_vmid_enabled(phba) && !hba_pci_err) { 965 if (phba->pport->work_port_events & 966 WORKER_CHECK_VMID_ISSUE_QFPA) { 967 lpfc_check_vmid_qfpa_issue(phba); 968 phba->pport->work_port_events &= 969 ~WORKER_CHECK_VMID_ISSUE_QFPA; 970 } 971 if (phba->pport->work_port_events & 972 WORKER_CHECK_INACTIVE_VMID) { 973 lpfc_check_inactive_vmid(phba); 974 phba->pport->work_port_events &= 975 ~WORKER_CHECK_INACTIVE_VMID; 976 } 977 } 978 979 /* Process SLI4 events */ 980 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 981 if (phba->hba_flag & HBA_RRQ_ACTIVE) 982 lpfc_handle_rrq_active(phba); 983 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 984 lpfc_sli4_els_xri_abort_event_proc(phba); 985 if (phba->hba_flag & ASYNC_EVENT) 986 lpfc_sli4_async_event_proc(phba); 987 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 988 spin_lock_irq(&phba->hbalock); 989 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 990 spin_unlock_irq(&phba->hbalock); 991 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 992 } 993 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 994 lpfc_sli4_fcf_redisc_event_proc(phba); 995 } 996 997 vports = lpfc_create_vport_work_array(phba); 998 if (vports != NULL) 999 for (i = 0; i <= phba->max_vports; i++) { 1000 /* 1001 * We could have no vports in array if unloading, so if 1002 * this happens then just use the pport 1003 */ 1004 if (vports[i] == NULL && i == 0) 1005 vport = phba->pport; 1006 else 1007 vport = vports[i]; 1008 if (vport == NULL) 1009 break; 1010 spin_lock_irq(&vport->work_port_lock); 1011 work_port_events = vport->work_port_events; 1012 vport->work_port_events &= ~work_port_events; 1013 spin_unlock_irq(&vport->work_port_lock); 1014 if (hba_pci_err) 1015 continue; 1016 if (work_port_events & WORKER_DISC_TMO) 1017 lpfc_disc_timeout_handler(vport); 1018 if (work_port_events & WORKER_ELS_TMO) 1019 lpfc_els_timeout_handler(vport); 1020 if (work_port_events & WORKER_HB_TMO) 1021 lpfc_hb_timeout_handler(phba); 1022 if (work_port_events & WORKER_MBOX_TMO) 1023 lpfc_mbox_timeout_handler(phba); 1024 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 1025 lpfc_unblock_fabric_iocbs(phba); 1026 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 1027 lpfc_ramp_down_queue_handler(phba); 1028 if (work_port_events & WORKER_DELAYED_DISC_TMO) 1029 lpfc_delayed_disc_timeout_handler(vport); 1030 } 1031 lpfc_destroy_vport_work_array(phba, vports); 1032 1033 pring = lpfc_phba_elsring(phba); 1034 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 1035 status >>= (4*LPFC_ELS_RING); 1036 if (pring && (status & HA_RXMASK || 1037 pring->flag & LPFC_DEFERRED_RING_EVENT || 1038 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 1039 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 1040 pring->flag |= LPFC_DEFERRED_RING_EVENT; 1041 /* Preserve legacy behavior. */ 1042 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 1043 set_bit(LPFC_DATA_READY, &phba->data_flags); 1044 } else { 1045 /* Driver could have abort request completed in queue 1046 * when link goes down. Allow for this transition. 1047 */ 1048 if (phba->link_state >= LPFC_LINK_DOWN || 1049 phba->link_flag & LS_MDS_LOOPBACK) { 1050 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 1051 lpfc_sli_handle_slow_ring_event(phba, pring, 1052 (status & 1053 HA_RXMASK)); 1054 } 1055 } 1056 if (phba->sli_rev == LPFC_SLI_REV4) 1057 lpfc_drain_txq(phba); 1058 /* 1059 * Turn on Ring interrupts 1060 */ 1061 if (phba->sli_rev <= LPFC_SLI_REV3) { 1062 spin_lock_irq(&phba->hbalock); 1063 control = readl(phba->HCregaddr); 1064 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 1065 lpfc_debugfs_slow_ring_trc(phba, 1066 "WRK Enable ring: cntl:x%x hacopy:x%x", 1067 control, ha_copy, 0); 1068 1069 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 1070 writel(control, phba->HCregaddr); 1071 readl(phba->HCregaddr); /* flush */ 1072 } else { 1073 lpfc_debugfs_slow_ring_trc(phba, 1074 "WRK Ring ok: cntl:x%x hacopy:x%x", 1075 control, ha_copy, 0); 1076 } 1077 spin_unlock_irq(&phba->hbalock); 1078 } 1079 } 1080 lpfc_work_list_done(phba); 1081} 1082 1083int 1084lpfc_do_work(void *p) 1085{ 1086 struct lpfc_hba *phba = p; 1087 int rc; 1088 1089 set_user_nice(current, MIN_NICE); 1090 current->flags |= PF_NOFREEZE; 1091 phba->data_flags = 0; 1092 1093 while (!kthread_should_stop()) { 1094 /* wait and check worker queue activities */ 1095 rc = wait_event_interruptible(phba->work_waitq, 1096 (test_and_clear_bit(LPFC_DATA_READY, 1097 &phba->data_flags) 1098 || kthread_should_stop())); 1099 /* Signal wakeup shall terminate the worker thread */ 1100 if (rc) { 1101 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 1102 "0433 Wakeup on signal: rc=x%x\n", rc); 1103 break; 1104 } 1105 1106 /* Attend pending lpfc data processing */ 1107 lpfc_work_done(phba); 1108 } 1109 phba->worker_thread = NULL; 1110 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 1111 "0432 Worker thread stopped.\n"); 1112 return 0; 1113} 1114 1115/* 1116 * This is only called to handle FC worker events. Since this a rare 1117 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 1118 * embedding it in the IOCB. 1119 */ 1120int 1121lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 1122 uint32_t evt) 1123{ 1124 struct lpfc_work_evt *evtp; 1125 unsigned long flags; 1126 1127 /* 1128 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 1129 * be queued to worker thread for processing 1130 */ 1131 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 1132 if (!evtp) 1133 return 0; 1134 1135 evtp->evt_arg1 = arg1; 1136 evtp->evt_arg2 = arg2; 1137 evtp->evt = evt; 1138 1139 spin_lock_irqsave(&phba->hbalock, flags); 1140 list_add_tail(&evtp->evt_listp, &phba->work_list); 1141 spin_unlock_irqrestore(&phba->hbalock, flags); 1142 1143 lpfc_worker_wake_up(phba); 1144 1145 return 1; 1146} 1147 1148void 1149lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 1150{ 1151 struct lpfc_hba *phba = vport->phba; 1152 struct lpfc_nodelist *ndlp, *next_ndlp; 1153 1154 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1155 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 1156 ((vport->port_type == LPFC_NPIV_PORT) && 1157 ((ndlp->nlp_DID == NameServer_DID) || 1158 (ndlp->nlp_DID == FDMI_DID) || 1159 (ndlp->nlp_DID == Fabric_Cntl_DID)))) 1160 lpfc_unreg_rpi(vport, ndlp); 1161 1162 /* Leave Fabric nodes alone on link down */ 1163 if ((phba->sli_rev < LPFC_SLI_REV4) && 1164 (!remove && ndlp->nlp_type & NLP_FABRIC)) 1165 continue; 1166 1167 /* Notify transport of connectivity loss to trigger cleanup. */ 1168 if (phba->nvmet_support && 1169 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 1170 lpfc_nvmet_invalidate_host(phba, ndlp); 1171 1172 lpfc_disc_state_machine(vport, ndlp, NULL, 1173 remove 1174 ? NLP_EVT_DEVICE_RM 1175 : NLP_EVT_DEVICE_RECOVERY); 1176 } 1177 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 1178 if (phba->sli_rev == LPFC_SLI_REV4) 1179 lpfc_sli4_unreg_all_rpis(vport); 1180 lpfc_mbx_unreg_vpi(vport); 1181 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 1182 } 1183} 1184 1185void 1186lpfc_port_link_failure(struct lpfc_vport *vport) 1187{ 1188 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 1189 1190 /* Cleanup any outstanding received buffers */ 1191 lpfc_cleanup_rcv_buffers(vport); 1192 1193 /* Cleanup any outstanding RSCN activity */ 1194 lpfc_els_flush_rscn(vport); 1195 1196 /* Cleanup any outstanding ELS commands */ 1197 lpfc_els_flush_cmd(vport); 1198 1199 lpfc_cleanup_rpis(vport, 0); 1200 1201 /* Turn off discovery timer if its running */ 1202 lpfc_can_disctmo(vport); 1203} 1204 1205void 1206lpfc_linkdown_port(struct lpfc_vport *vport) 1207{ 1208 struct lpfc_hba *phba = vport->phba; 1209 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1210 1211 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1212 fc_host_post_event(shost, fc_get_event_number(), 1213 FCH_EVT_LINKDOWN, 0); 1214 1215 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1216 "Link Down: state:x%x rtry:x%x flg:x%x", 1217 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 1218 1219 lpfc_port_link_failure(vport); 1220 1221 /* Stop delayed Nport discovery */ 1222 clear_bit(FC_DISC_DELAYED, &vport->fc_flag); 1223 del_timer_sync(&vport->delayed_disc_tmo); 1224 1225 if (phba->sli_rev == LPFC_SLI_REV4 && 1226 vport->port_type == LPFC_PHYSICAL_PORT && 1227 phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) { 1228 /* Assume success on link up */ 1229 phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC; 1230 } 1231} 1232 1233int 1234lpfc_linkdown(struct lpfc_hba *phba) 1235{ 1236 struct lpfc_vport *vport = phba->pport; 1237 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1238 struct lpfc_vport **vports; 1239 LPFC_MBOXQ_t *mb; 1240 int i; 1241 int offline; 1242 1243 if (phba->link_state == LPFC_LINK_DOWN) 1244 return 0; 1245 1246 /* Block all SCSI stack I/Os */ 1247 lpfc_scsi_dev_block(phba); 1248 offline = pci_channel_offline(phba->pcidev); 1249 1250 phba->defer_flogi_acc_flag = false; 1251 1252 /* Clear external loopback plug detected flag */ 1253 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 1254 1255 spin_lock_irq(&phba->hbalock); 1256 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1257 spin_unlock_irq(&phba->hbalock); 1258 if (phba->link_state > LPFC_LINK_DOWN) { 1259 phba->link_state = LPFC_LINK_DOWN; 1260 if (phba->sli4_hba.conf_trunk) { 1261 phba->trunk_link.link0.state = 0; 1262 phba->trunk_link.link1.state = 0; 1263 phba->trunk_link.link2.state = 0; 1264 phba->trunk_link.link3.state = 0; 1265 phba->trunk_link.phy_lnk_speed = 1266 LPFC_LINK_SPEED_UNKNOWN; 1267 phba->sli4_hba.link_state.logical_speed = 1268 LPFC_LINK_SPEED_UNKNOWN; 1269 } 1270 clear_bit(FC_LBIT, &phba->pport->fc_flag); 1271 } 1272 vports = lpfc_create_vport_work_array(phba); 1273 if (vports != NULL) { 1274 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1275 /* Issue a LINK DOWN event to all nodes */ 1276 lpfc_linkdown_port(vports[i]); 1277 1278 vports[i]->fc_myDID = 0; 1279 1280 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1281 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1282 if (phba->nvmet_support) 1283 lpfc_nvmet_update_targetport(phba); 1284 else 1285 lpfc_nvme_update_localport(vports[i]); 1286 } 1287 } 1288 } 1289 lpfc_destroy_vport_work_array(phba, vports); 1290 1291 /* Clean up any SLI3 firmware default rpi's */ 1292 if (phba->sli_rev > LPFC_SLI_REV3 || offline) 1293 goto skip_unreg_did; 1294 1295 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1296 if (mb) { 1297 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 1298 mb->vport = vport; 1299 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1300 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1301 == MBX_NOT_FINISHED) { 1302 mempool_free(mb, phba->mbox_mem_pool); 1303 } 1304 } 1305 1306 skip_unreg_did: 1307 /* Setup myDID for link up if we are in pt2pt mode */ 1308 if (test_bit(FC_PT2PT, &phba->pport->fc_flag)) { 1309 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1310 if (mb) { 1311 lpfc_config_link(phba, mb); 1312 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1313 mb->vport = vport; 1314 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1315 == MBX_NOT_FINISHED) { 1316 mempool_free(mb, phba->mbox_mem_pool); 1317 } 1318 } 1319 clear_bit(FC_PT2PT, &phba->pport->fc_flag); 1320 clear_bit(FC_PT2PT_PLOGI, &phba->pport->fc_flag); 1321 spin_lock_irq(shost->host_lock); 1322 phba->pport->rcv_flogi_cnt = 0; 1323 spin_unlock_irq(shost->host_lock); 1324 } 1325 return 0; 1326} 1327 1328static void 1329lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 1330{ 1331 struct lpfc_nodelist *ndlp; 1332 1333 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 1334 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 1335 1336 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1337 continue; 1338 if (ndlp->nlp_type & NLP_FABRIC) { 1339 /* On Linkup its safe to clean up the ndlp 1340 * from Fabric connections. 1341 */ 1342 if (ndlp->nlp_DID != Fabric_DID) 1343 lpfc_unreg_rpi(vport, ndlp); 1344 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1345 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 1346 /* Fail outstanding IO now since device is 1347 * marked for PLOGI. 1348 */ 1349 lpfc_unreg_rpi(vport, ndlp); 1350 } 1351 } 1352} 1353 1354static void 1355lpfc_linkup_port(struct lpfc_vport *vport) 1356{ 1357 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1358 struct lpfc_hba *phba = vport->phba; 1359 1360 if (test_bit(FC_UNLOADING, &vport->load_flag)) 1361 return; 1362 1363 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1364 "Link Up: top:x%x speed:x%x flg:x%x", 1365 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1366 1367 /* If NPIV is not enabled, only bring the physical port up */ 1368 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1369 (vport != phba->pport)) 1370 return; 1371 1372 if (phba->defer_flogi_acc_flag) { 1373 clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); 1374 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 1375 clear_bit(FC_NLP_MORE, &vport->fc_flag); 1376 clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 1377 } else { 1378 clear_bit(FC_PT2PT, &vport->fc_flag); 1379 clear_bit(FC_PT2PT_PLOGI, &vport->fc_flag); 1380 clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); 1381 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 1382 clear_bit(FC_NLP_MORE, &vport->fc_flag); 1383 clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); 1384 } 1385 set_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 1386 1387 spin_lock_irq(shost->host_lock); 1388 vport->fc_ns_retry = 0; 1389 spin_unlock_irq(shost->host_lock); 1390 lpfc_setup_fdmi_mask(vport); 1391 1392 lpfc_linkup_cleanup_nodes(vport); 1393} 1394 1395static int 1396lpfc_linkup(struct lpfc_hba *phba) 1397{ 1398 struct lpfc_vport **vports; 1399 int i; 1400 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1401 1402 phba->link_state = LPFC_LINK_UP; 1403 1404 /* Unblock fabric iocbs if they are blocked */ 1405 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1406 del_timer_sync(&phba->fabric_block_timer); 1407 1408 vports = lpfc_create_vport_work_array(phba); 1409 if (vports != NULL) 1410 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1411 lpfc_linkup_port(vports[i]); 1412 lpfc_destroy_vport_work_array(phba, vports); 1413 1414 /* Clear the pport flogi counter in case the link down was 1415 * absorbed without an ACQE. No lock here - in worker thread 1416 * and discovery is synchronized. 1417 */ 1418 spin_lock_irq(shost->host_lock); 1419 phba->pport->rcv_flogi_cnt = 0; 1420 spin_unlock_irq(shost->host_lock); 1421 1422 /* reinitialize initial HBA flag */ 1423 phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_RHBA_CMPL); 1424 1425 return 0; 1426} 1427 1428/* 1429 * This routine handles processing a CLEAR_LA mailbox 1430 * command upon completion. It is setup in the LPFC_MBOXQ 1431 * as the completion routine when the command is 1432 * handed off to the SLI layer. SLI3 only. 1433 */ 1434static void 1435lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1436{ 1437 struct lpfc_vport *vport = pmb->vport; 1438 struct lpfc_sli *psli = &phba->sli; 1439 MAILBOX_t *mb = &pmb->u.mb; 1440 uint32_t control; 1441 1442 /* Since we don't do discovery right now, turn these off here */ 1443 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1444 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1445 1446 /* Check for error */ 1447 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1448 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1449 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1450 "0320 CLEAR_LA mbxStatus error x%x hba " 1451 "state x%x\n", 1452 mb->mbxStatus, vport->port_state); 1453 phba->link_state = LPFC_HBA_ERROR; 1454 goto out; 1455 } 1456 1457 if (vport->port_type == LPFC_PHYSICAL_PORT) 1458 phba->link_state = LPFC_HBA_READY; 1459 1460 spin_lock_irq(&phba->hbalock); 1461 psli->sli_flag |= LPFC_PROCESS_LA; 1462 control = readl(phba->HCregaddr); 1463 control |= HC_LAINT_ENA; 1464 writel(control, phba->HCregaddr); 1465 readl(phba->HCregaddr); /* flush */ 1466 spin_unlock_irq(&phba->hbalock); 1467 mempool_free(pmb, phba->mbox_mem_pool); 1468 return; 1469 1470out: 1471 /* Device Discovery completes */ 1472 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1473 "0225 Device Discovery completes\n"); 1474 mempool_free(pmb, phba->mbox_mem_pool); 1475 1476 clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); 1477 1478 lpfc_can_disctmo(vport); 1479 1480 /* turn on Link Attention interrupts */ 1481 1482 spin_lock_irq(&phba->hbalock); 1483 psli->sli_flag |= LPFC_PROCESS_LA; 1484 control = readl(phba->HCregaddr); 1485 control |= HC_LAINT_ENA; 1486 writel(control, phba->HCregaddr); 1487 readl(phba->HCregaddr); /* flush */ 1488 spin_unlock_irq(&phba->hbalock); 1489 1490 return; 1491} 1492 1493void 1494lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1495{ 1496 struct lpfc_vport *vport = pmb->vport; 1497 LPFC_MBOXQ_t *sparam_mb; 1498 u16 status = pmb->u.mb.mbxStatus; 1499 int rc; 1500 1501 mempool_free(pmb, phba->mbox_mem_pool); 1502 1503 if (status) 1504 goto out; 1505 1506 /* don't perform discovery for SLI4 loopback diagnostic test */ 1507 if ((phba->sli_rev == LPFC_SLI_REV4) && 1508 !(phba->hba_flag & HBA_FCOE_MODE) && 1509 (phba->link_flag & LS_LOOPBACK_MODE)) 1510 return; 1511 1512 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1513 test_bit(FC_PUBLIC_LOOP, &vport->fc_flag) && 1514 !test_bit(FC_LBIT, &vport->fc_flag)) { 1515 /* Need to wait for FAN - use discovery timer 1516 * for timeout. port_state is identically 1517 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1518 */ 1519 lpfc_set_disctmo(vport); 1520 return; 1521 } 1522 1523 /* Start discovery by sending a FLOGI. port_state is identically 1524 * LPFC_FLOGI while waiting for FLOGI cmpl. 1525 */ 1526 if (vport->port_state != LPFC_FLOGI) { 1527 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if 1528 * bb-credit recovery is in place. 1529 */ 1530 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 1531 !(phba->link_flag & LS_LOOPBACK_MODE)) { 1532 sparam_mb = mempool_alloc(phba->mbox_mem_pool, 1533 GFP_KERNEL); 1534 if (!sparam_mb) 1535 goto sparam_out; 1536 1537 rc = lpfc_read_sparam(phba, sparam_mb, 0); 1538 if (rc) { 1539 mempool_free(sparam_mb, phba->mbox_mem_pool); 1540 goto sparam_out; 1541 } 1542 sparam_mb->vport = vport; 1543 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1544 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT); 1545 if (rc == MBX_NOT_FINISHED) { 1546 lpfc_mbox_rsrc_cleanup(phba, sparam_mb, 1547 MBOX_THD_UNLOCKED); 1548 goto sparam_out; 1549 } 1550 1551 phba->hba_flag |= HBA_DEFER_FLOGI; 1552 } else { 1553 lpfc_initial_flogi(vport); 1554 } 1555 } else { 1556 if (test_bit(FC_PT2PT, &vport->fc_flag)) 1557 lpfc_disc_start(vport); 1558 } 1559 return; 1560 1561out: 1562 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1563 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", 1564 status, vport->port_state); 1565 1566sparam_out: 1567 lpfc_linkdown(phba); 1568 1569 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1570 "0200 CONFIG_LINK bad hba state x%x\n", 1571 vport->port_state); 1572 1573 lpfc_issue_clear_la(phba, vport); 1574 return; 1575} 1576 1577/** 1578 * lpfc_sli4_clear_fcf_rr_bmask 1579 * @phba: pointer to the struct lpfc_hba for this port. 1580 * This fucnction resets the round robin bit mask and clears the 1581 * fcf priority list. The list deletions are done while holding the 1582 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1583 * from the lpfc_fcf_pri record. 1584 **/ 1585void 1586lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1587{ 1588 struct lpfc_fcf_pri *fcf_pri; 1589 struct lpfc_fcf_pri *next_fcf_pri; 1590 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1591 spin_lock_irq(&phba->hbalock); 1592 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1593 &phba->fcf.fcf_pri_list, list) { 1594 list_del_init(&fcf_pri->list); 1595 fcf_pri->fcf_rec.flag = 0; 1596 } 1597 spin_unlock_irq(&phba->hbalock); 1598} 1599static void 1600lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1601{ 1602 struct lpfc_vport *vport = mboxq->vport; 1603 1604 if (mboxq->u.mb.mbxStatus) { 1605 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1606 "2017 REG_FCFI mbxStatus error x%x " 1607 "HBA state x%x\n", mboxq->u.mb.mbxStatus, 1608 vport->port_state); 1609 goto fail_out; 1610 } 1611 1612 /* Start FCoE discovery by sending a FLOGI. */ 1613 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1614 /* Set the FCFI registered flag */ 1615 spin_lock_irq(&phba->hbalock); 1616 phba->fcf.fcf_flag |= FCF_REGISTERED; 1617 spin_unlock_irq(&phba->hbalock); 1618 1619 /* If there is a pending FCoE event, restart FCF table scan. */ 1620 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1621 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1622 goto fail_out; 1623 1624 /* Mark successful completion of FCF table scan */ 1625 spin_lock_irq(&phba->hbalock); 1626 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1627 phba->hba_flag &= ~FCF_TS_INPROG; 1628 if (vport->port_state != LPFC_FLOGI) { 1629 phba->hba_flag |= FCF_RR_INPROG; 1630 spin_unlock_irq(&phba->hbalock); 1631 lpfc_issue_init_vfi(vport); 1632 goto out; 1633 } 1634 spin_unlock_irq(&phba->hbalock); 1635 goto out; 1636 1637fail_out: 1638 spin_lock_irq(&phba->hbalock); 1639 phba->hba_flag &= ~FCF_RR_INPROG; 1640 spin_unlock_irq(&phba->hbalock); 1641out: 1642 mempool_free(mboxq, phba->mbox_mem_pool); 1643} 1644 1645/** 1646 * lpfc_fab_name_match - Check if the fcf fabric name match. 1647 * @fab_name: pointer to fabric name. 1648 * @new_fcf_record: pointer to fcf record. 1649 * 1650 * This routine compare the fcf record's fabric name with provided 1651 * fabric name. If the fabric name are identical this function 1652 * returns 1 else return 0. 1653 **/ 1654static uint32_t 1655lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1656{ 1657 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1658 return 0; 1659 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1660 return 0; 1661 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1662 return 0; 1663 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1664 return 0; 1665 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1666 return 0; 1667 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1668 return 0; 1669 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1670 return 0; 1671 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1672 return 0; 1673 return 1; 1674} 1675 1676/** 1677 * lpfc_sw_name_match - Check if the fcf switch name match. 1678 * @sw_name: pointer to switch name. 1679 * @new_fcf_record: pointer to fcf record. 1680 * 1681 * This routine compare the fcf record's switch name with provided 1682 * switch name. If the switch name are identical this function 1683 * returns 1 else return 0. 1684 **/ 1685static uint32_t 1686lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1687{ 1688 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1689 return 0; 1690 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1691 return 0; 1692 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1693 return 0; 1694 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1695 return 0; 1696 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1697 return 0; 1698 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1699 return 0; 1700 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1701 return 0; 1702 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1703 return 0; 1704 return 1; 1705} 1706 1707/** 1708 * lpfc_mac_addr_match - Check if the fcf mac address match. 1709 * @mac_addr: pointer to mac address. 1710 * @new_fcf_record: pointer to fcf record. 1711 * 1712 * This routine compare the fcf record's mac address with HBA's 1713 * FCF mac address. If the mac addresses are identical this function 1714 * returns 1 else return 0. 1715 **/ 1716static uint32_t 1717lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1718{ 1719 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1720 return 0; 1721 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1722 return 0; 1723 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1724 return 0; 1725 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1726 return 0; 1727 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1728 return 0; 1729 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1730 return 0; 1731 return 1; 1732} 1733 1734static bool 1735lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1736{ 1737 return (curr_vlan_id == new_vlan_id); 1738} 1739 1740/** 1741 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1742 * @phba: pointer to lpfc hba data structure. 1743 * @fcf_index: Index for the lpfc_fcf_record. 1744 * @new_fcf_record: pointer to hba fcf record. 1745 * 1746 * This routine updates the driver FCF priority record from the new HBA FCF 1747 * record. The hbalock is asserted held in the code path calling this 1748 * routine. 1749 **/ 1750static void 1751__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1752 struct fcf_record *new_fcf_record 1753 ) 1754{ 1755 struct lpfc_fcf_pri *fcf_pri; 1756 1757 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1758 fcf_pri->fcf_rec.fcf_index = fcf_index; 1759 /* FCF record priority */ 1760 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1761 1762} 1763 1764/** 1765 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1766 * @fcf_rec: pointer to driver fcf record. 1767 * @new_fcf_record: pointer to fcf record. 1768 * 1769 * This routine copies the FCF information from the FCF 1770 * record to lpfc_hba data structure. 1771 **/ 1772static void 1773lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1774 struct fcf_record *new_fcf_record) 1775{ 1776 /* Fabric name */ 1777 fcf_rec->fabric_name[0] = 1778 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1779 fcf_rec->fabric_name[1] = 1780 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1781 fcf_rec->fabric_name[2] = 1782 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1783 fcf_rec->fabric_name[3] = 1784 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1785 fcf_rec->fabric_name[4] = 1786 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1787 fcf_rec->fabric_name[5] = 1788 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1789 fcf_rec->fabric_name[6] = 1790 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1791 fcf_rec->fabric_name[7] = 1792 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1793 /* Mac address */ 1794 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1795 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1796 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1797 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1798 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1799 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1800 /* FCF record index */ 1801 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1802 /* FCF record priority */ 1803 fcf_rec->priority = new_fcf_record->fip_priority; 1804 /* Switch name */ 1805 fcf_rec->switch_name[0] = 1806 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1807 fcf_rec->switch_name[1] = 1808 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1809 fcf_rec->switch_name[2] = 1810 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1811 fcf_rec->switch_name[3] = 1812 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1813 fcf_rec->switch_name[4] = 1814 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1815 fcf_rec->switch_name[5] = 1816 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1817 fcf_rec->switch_name[6] = 1818 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1819 fcf_rec->switch_name[7] = 1820 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1821} 1822 1823/** 1824 * __lpfc_update_fcf_record - Update driver fcf record 1825 * @phba: pointer to lpfc hba data structure. 1826 * @fcf_rec: pointer to driver fcf record. 1827 * @new_fcf_record: pointer to hba fcf record. 1828 * @addr_mode: address mode to be set to the driver fcf record. 1829 * @vlan_id: vlan tag to be set to the driver fcf record. 1830 * @flag: flag bits to be set to the driver fcf record. 1831 * 1832 * This routine updates the driver FCF record from the new HBA FCF record 1833 * together with the address mode, vlan_id, and other informations. This 1834 * routine is called with the hbalock held. 1835 **/ 1836static void 1837__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1838 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1839 uint16_t vlan_id, uint32_t flag) 1840{ 1841 lockdep_assert_held(&phba->hbalock); 1842 1843 /* Copy the fields from the HBA's FCF record */ 1844 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1845 /* Update other fields of driver FCF record */ 1846 fcf_rec->addr_mode = addr_mode; 1847 fcf_rec->vlan_id = vlan_id; 1848 fcf_rec->flag |= (flag | RECORD_VALID); 1849 __lpfc_update_fcf_record_pri(phba, 1850 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1851 new_fcf_record); 1852} 1853 1854/** 1855 * lpfc_register_fcf - Register the FCF with hba. 1856 * @phba: pointer to lpfc hba data structure. 1857 * 1858 * This routine issues a register fcfi mailbox command to register 1859 * the fcf with HBA. 1860 **/ 1861static void 1862lpfc_register_fcf(struct lpfc_hba *phba) 1863{ 1864 LPFC_MBOXQ_t *fcf_mbxq; 1865 int rc; 1866 1867 spin_lock_irq(&phba->hbalock); 1868 /* If the FCF is not available do nothing. */ 1869 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1870 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1871 spin_unlock_irq(&phba->hbalock); 1872 return; 1873 } 1874 1875 /* The FCF is already registered, start discovery */ 1876 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1877 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1878 phba->hba_flag &= ~FCF_TS_INPROG; 1879 if (phba->pport->port_state != LPFC_FLOGI && 1880 test_bit(FC_FABRIC, &phba->pport->fc_flag)) { 1881 phba->hba_flag |= FCF_RR_INPROG; 1882 spin_unlock_irq(&phba->hbalock); 1883 lpfc_initial_flogi(phba->pport); 1884 return; 1885 } 1886 spin_unlock_irq(&phba->hbalock); 1887 return; 1888 } 1889 spin_unlock_irq(&phba->hbalock); 1890 1891 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1892 if (!fcf_mbxq) { 1893 spin_lock_irq(&phba->hbalock); 1894 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1895 spin_unlock_irq(&phba->hbalock); 1896 return; 1897 } 1898 1899 lpfc_reg_fcfi(phba, fcf_mbxq); 1900 fcf_mbxq->vport = phba->pport; 1901 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1902 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1903 if (rc == MBX_NOT_FINISHED) { 1904 spin_lock_irq(&phba->hbalock); 1905 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1906 spin_unlock_irq(&phba->hbalock); 1907 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1908 } 1909 1910 return; 1911} 1912 1913/** 1914 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1915 * @phba: pointer to lpfc hba data structure. 1916 * @new_fcf_record: pointer to fcf record. 1917 * @boot_flag: Indicates if this record used by boot bios. 1918 * @addr_mode: The address mode to be used by this FCF 1919 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1920 * 1921 * This routine compare the fcf record with connect list obtained from the 1922 * config region to decide if this FCF can be used for SAN discovery. It returns 1923 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1924 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1925 * is used by boot bios and addr_mode will indicate the addressing mode to be 1926 * used for this FCF when the function returns. 1927 * If the FCF record need to be used with a particular vlan id, the vlan is 1928 * set in the vlan_id on return of the function. If not VLAN tagging need to 1929 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1930 **/ 1931static int 1932lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1933 struct fcf_record *new_fcf_record, 1934 uint32_t *boot_flag, uint32_t *addr_mode, 1935 uint16_t *vlan_id) 1936{ 1937 struct lpfc_fcf_conn_entry *conn_entry; 1938 int i, j, fcf_vlan_id = 0; 1939 1940 /* Find the lowest VLAN id in the FCF record */ 1941 for (i = 0; i < 512; i++) { 1942 if (new_fcf_record->vlan_bitmap[i]) { 1943 fcf_vlan_id = i * 8; 1944 j = 0; 1945 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1946 j++; 1947 fcf_vlan_id++; 1948 } 1949 break; 1950 } 1951 } 1952 1953 /* FCF not valid/available or solicitation in progress */ 1954 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1955 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1956 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1957 return 0; 1958 1959 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1960 *boot_flag = 0; 1961 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1962 new_fcf_record); 1963 if (phba->valid_vlan) 1964 *vlan_id = phba->vlan_id; 1965 else 1966 *vlan_id = LPFC_FCOE_NULL_VID; 1967 return 1; 1968 } 1969 1970 /* 1971 * If there are no FCF connection table entry, driver connect to all 1972 * FCFs. 1973 */ 1974 if (list_empty(&phba->fcf_conn_rec_list)) { 1975 *boot_flag = 0; 1976 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1977 new_fcf_record); 1978 1979 /* 1980 * When there are no FCF connect entries, use driver's default 1981 * addressing mode - FPMA. 1982 */ 1983 if (*addr_mode & LPFC_FCF_FPMA) 1984 *addr_mode = LPFC_FCF_FPMA; 1985 1986 /* If FCF record report a vlan id use that vlan id */ 1987 if (fcf_vlan_id) 1988 *vlan_id = fcf_vlan_id; 1989 else 1990 *vlan_id = LPFC_FCOE_NULL_VID; 1991 return 1; 1992 } 1993 1994 list_for_each_entry(conn_entry, 1995 &phba->fcf_conn_rec_list, list) { 1996 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1997 continue; 1998 1999 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 2000 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 2001 new_fcf_record)) 2002 continue; 2003 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 2004 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 2005 new_fcf_record)) 2006 continue; 2007 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 2008 /* 2009 * If the vlan bit map does not have the bit set for the 2010 * vlan id to be used, then it is not a match. 2011 */ 2012 if (!(new_fcf_record->vlan_bitmap 2013 [conn_entry->conn_rec.vlan_tag / 8] & 2014 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 2015 continue; 2016 } 2017 2018 /* 2019 * If connection record does not support any addressing mode, 2020 * skip the FCF record. 2021 */ 2022 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 2023 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 2024 continue; 2025 2026 /* 2027 * Check if the connection record specifies a required 2028 * addressing mode. 2029 */ 2030 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2031 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 2032 2033 /* 2034 * If SPMA required but FCF not support this continue. 2035 */ 2036 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2037 !(bf_get(lpfc_fcf_record_mac_addr_prov, 2038 new_fcf_record) & LPFC_FCF_SPMA)) 2039 continue; 2040 2041 /* 2042 * If FPMA required but FCF not support this continue. 2043 */ 2044 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2045 !(bf_get(lpfc_fcf_record_mac_addr_prov, 2046 new_fcf_record) & LPFC_FCF_FPMA)) 2047 continue; 2048 } 2049 2050 /* 2051 * This fcf record matches filtering criteria. 2052 */ 2053 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 2054 *boot_flag = 1; 2055 else 2056 *boot_flag = 0; 2057 2058 /* 2059 * If user did not specify any addressing mode, or if the 2060 * preferred addressing mode specified by user is not supported 2061 * by FCF, allow fabric to pick the addressing mode. 2062 */ 2063 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 2064 new_fcf_record); 2065 /* 2066 * If the user specified a required address mode, assign that 2067 * address mode 2068 */ 2069 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2070 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 2071 *addr_mode = (conn_entry->conn_rec.flags & 2072 FCFCNCT_AM_SPMA) ? 2073 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 2074 /* 2075 * If the user specified a preferred address mode, use the 2076 * addr mode only if FCF support the addr_mode. 2077 */ 2078 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2079 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2080 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2081 (*addr_mode & LPFC_FCF_SPMA)) 2082 *addr_mode = LPFC_FCF_SPMA; 2083 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2084 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2085 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2086 (*addr_mode & LPFC_FCF_FPMA)) 2087 *addr_mode = LPFC_FCF_FPMA; 2088 2089 /* If matching connect list has a vlan id, use it */ 2090 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 2091 *vlan_id = conn_entry->conn_rec.vlan_tag; 2092 /* 2093 * If no vlan id is specified in connect list, use the vlan id 2094 * in the FCF record 2095 */ 2096 else if (fcf_vlan_id) 2097 *vlan_id = fcf_vlan_id; 2098 else 2099 *vlan_id = LPFC_FCOE_NULL_VID; 2100 2101 return 1; 2102 } 2103 2104 return 0; 2105} 2106 2107/** 2108 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 2109 * @phba: pointer to lpfc hba data structure. 2110 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 2111 * 2112 * This function check if there is any fcoe event pending while driver 2113 * scan FCF entries. If there is any pending event, it will restart the 2114 * FCF saning and return 1 else return 0. 2115 */ 2116int 2117lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 2118{ 2119 /* 2120 * If the Link is up and no FCoE events while in the 2121 * FCF discovery, no need to restart FCF discovery. 2122 */ 2123 if ((phba->link_state >= LPFC_LINK_UP) && 2124 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 2125 return 0; 2126 2127 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2128 "2768 Pending link or FCF event during current " 2129 "handling of the previous event: link_state:x%x, " 2130 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 2131 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 2132 phba->fcoe_eventtag); 2133 2134 spin_lock_irq(&phba->hbalock); 2135 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 2136 spin_unlock_irq(&phba->hbalock); 2137 2138 if (phba->link_state >= LPFC_LINK_UP) { 2139 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2140 "2780 Restart FCF table scan due to " 2141 "pending FCF event:evt_tag_at_scan:x%x, " 2142 "evt_tag_current:x%x\n", 2143 phba->fcoe_eventtag_at_fcf_scan, 2144 phba->fcoe_eventtag); 2145 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 2146 } else { 2147 /* 2148 * Do not continue FCF discovery and clear FCF_TS_INPROG 2149 * flag 2150 */ 2151 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2152 "2833 Stop FCF discovery process due to link " 2153 "state change (x%x)\n", phba->link_state); 2154 spin_lock_irq(&phba->hbalock); 2155 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 2156 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 2157 spin_unlock_irq(&phba->hbalock); 2158 } 2159 2160 /* Unregister the currently registered FCF if required */ 2161 if (unreg_fcf) { 2162 spin_lock_irq(&phba->hbalock); 2163 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 2164 spin_unlock_irq(&phba->hbalock); 2165 lpfc_sli4_unregister_fcf(phba); 2166 } 2167 return 1; 2168} 2169 2170/** 2171 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 2172 * @phba: pointer to lpfc hba data structure. 2173 * @fcf_cnt: number of eligible fcf record seen so far. 2174 * 2175 * This function makes an running random selection decision on FCF record to 2176 * use through a sequence of @fcf_cnt eligible FCF records with equal 2177 * probability. To perform integer manunipulation of random numbers with 2178 * size unit32_t, a 16-bit random number returned from get_random_u16() is 2179 * taken as the random random number generated. 2180 * 2181 * Returns true when outcome is for the newly read FCF record should be 2182 * chosen; otherwise, return false when outcome is for keeping the previously 2183 * chosen FCF record. 2184 **/ 2185static bool 2186lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 2187{ 2188 uint32_t rand_num; 2189 2190 /* Get 16-bit uniform random number */ 2191 rand_num = get_random_u16(); 2192 2193 /* Decision with probability 1/fcf_cnt */ 2194 if ((fcf_cnt * rand_num) < 0xFFFF) 2195 return true; 2196 else 2197 return false; 2198} 2199 2200/** 2201 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 2202 * @phba: pointer to lpfc hba data structure. 2203 * @mboxq: pointer to mailbox object. 2204 * @next_fcf_index: pointer to holder of next fcf index. 2205 * 2206 * This routine parses the non-embedded fcf mailbox command by performing the 2207 * necessarily error checking, non-embedded read FCF record mailbox command 2208 * SGE parsing, and endianness swapping. 2209 * 2210 * Returns the pointer to the new FCF record in the non-embedded mailbox 2211 * command DMA memory if successfully, other NULL. 2212 */ 2213static struct fcf_record * 2214lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 2215 uint16_t *next_fcf_index) 2216{ 2217 void *virt_addr; 2218 struct lpfc_mbx_sge sge; 2219 struct lpfc_mbx_read_fcf_tbl *read_fcf; 2220 uint32_t shdr_status, shdr_add_status, if_type; 2221 union lpfc_sli4_cfg_shdr *shdr; 2222 struct fcf_record *new_fcf_record; 2223 2224 /* Get the first SGE entry from the non-embedded DMA memory. This 2225 * routine only uses a single SGE. 2226 */ 2227 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 2228 if (unlikely(!mboxq->sge_array)) { 2229 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2230 "2524 Failed to get the non-embedded SGE " 2231 "virtual address\n"); 2232 return NULL; 2233 } 2234 virt_addr = mboxq->sge_array->addr[0]; 2235 2236 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 2237 lpfc_sli_pcimem_bcopy(shdr, shdr, 2238 sizeof(union lpfc_sli4_cfg_shdr)); 2239 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 2240 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2241 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 2242 if (shdr_status || shdr_add_status) { 2243 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 2244 if_type == LPFC_SLI_INTF_IF_TYPE_2) 2245 lpfc_printf_log(phba, KERN_ERR, 2246 LOG_TRACE_EVENT, 2247 "2726 READ_FCF_RECORD Indicates empty " 2248 "FCF table.\n"); 2249 else 2250 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2251 "2521 READ_FCF_RECORD mailbox failed " 2252 "with status x%x add_status x%x, " 2253 "mbx\n", shdr_status, shdr_add_status); 2254 return NULL; 2255 } 2256 2257 /* Interpreting the returned information of the FCF record */ 2258 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 2259 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 2260 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2261 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 2262 new_fcf_record = (struct fcf_record *)(virt_addr + 2263 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2264 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 2265 offsetof(struct fcf_record, vlan_bitmap)); 2266 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 2267 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 2268 2269 return new_fcf_record; 2270} 2271 2272/** 2273 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 2274 * @phba: pointer to lpfc hba data structure. 2275 * @fcf_record: pointer to the fcf record. 2276 * @vlan_id: the lowest vlan identifier associated to this fcf record. 2277 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 2278 * 2279 * This routine logs the detailed FCF record if the LOG_FIP loggin is 2280 * enabled. 2281 **/ 2282static void 2283lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 2284 struct fcf_record *fcf_record, 2285 uint16_t vlan_id, 2286 uint16_t next_fcf_index) 2287{ 2288 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2289 "2764 READ_FCF_RECORD:\n" 2290 "\tFCF_Index : x%x\n" 2291 "\tFCF_Avail : x%x\n" 2292 "\tFCF_Valid : x%x\n" 2293 "\tFCF_SOL : x%x\n" 2294 "\tFIP_Priority : x%x\n" 2295 "\tMAC_Provider : x%x\n" 2296 "\tLowest VLANID : x%x\n" 2297 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 2298 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2299 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2300 "\tNext_FCF_Index: x%x\n", 2301 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 2302 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 2303 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 2304 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 2305 fcf_record->fip_priority, 2306 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 2307 vlan_id, 2308 bf_get(lpfc_fcf_record_mac_0, fcf_record), 2309 bf_get(lpfc_fcf_record_mac_1, fcf_record), 2310 bf_get(lpfc_fcf_record_mac_2, fcf_record), 2311 bf_get(lpfc_fcf_record_mac_3, fcf_record), 2312 bf_get(lpfc_fcf_record_mac_4, fcf_record), 2313 bf_get(lpfc_fcf_record_mac_5, fcf_record), 2314 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 2315 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 2316 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 2317 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 2318 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 2319 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 2320 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 2321 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 2322 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 2323 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 2324 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 2325 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 2326 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 2327 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 2328 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 2329 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 2330 next_fcf_index); 2331} 2332 2333/** 2334 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 2335 * @phba: pointer to lpfc hba data structure. 2336 * @fcf_rec: pointer to an existing FCF record. 2337 * @new_fcf_record: pointer to a new FCF record. 2338 * @new_vlan_id: vlan id from the new FCF record. 2339 * 2340 * This function performs matching test of a new FCF record against an existing 2341 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 2342 * will not be used as part of the FCF record matching criteria. 2343 * 2344 * Returns true if all the fields matching, otherwise returns false. 2345 */ 2346static bool 2347lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 2348 struct lpfc_fcf_rec *fcf_rec, 2349 struct fcf_record *new_fcf_record, 2350 uint16_t new_vlan_id) 2351{ 2352 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 2353 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 2354 return false; 2355 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 2356 return false; 2357 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 2358 return false; 2359 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 2360 return false; 2361 if (fcf_rec->priority != new_fcf_record->fip_priority) 2362 return false; 2363 return true; 2364} 2365 2366/** 2367 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 2368 * @vport: Pointer to vport object. 2369 * @fcf_index: index to next fcf. 2370 * 2371 * This function processing the roundrobin fcf failover to next fcf index. 2372 * When this function is invoked, there will be a current fcf registered 2373 * for flogi. 2374 * Return: 0 for continue retrying flogi on currently registered fcf; 2375 * 1 for stop flogi on currently registered fcf; 2376 */ 2377int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 2378{ 2379 struct lpfc_hba *phba = vport->phba; 2380 int rc; 2381 2382 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2383 spin_lock_irq(&phba->hbalock); 2384 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2385 spin_unlock_irq(&phba->hbalock); 2386 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2387 "2872 Devloss tmo with no eligible " 2388 "FCF, unregister in-use FCF (x%x) " 2389 "and rescan FCF table\n", 2390 phba->fcf.current_rec.fcf_indx); 2391 lpfc_unregister_fcf_rescan(phba); 2392 goto stop_flogi_current_fcf; 2393 } 2394 /* Mark the end to FLOGI roundrobin failover */ 2395 phba->hba_flag &= ~FCF_RR_INPROG; 2396 /* Allow action to new fcf asynchronous event */ 2397 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2398 spin_unlock_irq(&phba->hbalock); 2399 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2400 "2865 No FCF available, stop roundrobin FCF " 2401 "failover and change port state:x%x/x%x\n", 2402 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2403 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2404 2405 if (!phba->fcf.fcf_redisc_attempted) { 2406 lpfc_unregister_fcf(phba); 2407 2408 rc = lpfc_sli4_redisc_fcf_table(phba); 2409 if (!rc) { 2410 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2411 "3195 Rediscover FCF table\n"); 2412 phba->fcf.fcf_redisc_attempted = 1; 2413 lpfc_sli4_clear_fcf_rr_bmask(phba); 2414 } else { 2415 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2416 "3196 Rediscover FCF table " 2417 "failed. Status:x%x\n", rc); 2418 } 2419 } else { 2420 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2421 "3197 Already rediscover FCF table " 2422 "attempted. No more retry\n"); 2423 } 2424 goto stop_flogi_current_fcf; 2425 } else { 2426 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2427 "2794 Try FLOGI roundrobin FCF failover to " 2428 "(x%x)\n", fcf_index); 2429 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2430 if (rc) 2431 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2432 "2761 FLOGI roundrobin FCF failover " 2433 "failed (rc:x%x) to read FCF (x%x)\n", 2434 rc, phba->fcf.current_rec.fcf_indx); 2435 else 2436 goto stop_flogi_current_fcf; 2437 } 2438 return 0; 2439 2440stop_flogi_current_fcf: 2441 lpfc_can_disctmo(vport); 2442 return 1; 2443} 2444 2445/** 2446 * lpfc_sli4_fcf_pri_list_del 2447 * @phba: pointer to lpfc hba data structure. 2448 * @fcf_index: the index of the fcf record to delete 2449 * This routine checks the on list flag of the fcf_index to be deleted. 2450 * If it is one the list then it is removed from the list, and the flag 2451 * is cleared. This routine grab the hbalock before removing the fcf 2452 * record from the list. 2453 **/ 2454static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2455 uint16_t fcf_index) 2456{ 2457 struct lpfc_fcf_pri *new_fcf_pri; 2458 2459 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2460 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2461 "3058 deleting idx x%x pri x%x flg x%x\n", 2462 fcf_index, new_fcf_pri->fcf_rec.priority, 2463 new_fcf_pri->fcf_rec.flag); 2464 spin_lock_irq(&phba->hbalock); 2465 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2466 if (phba->fcf.current_rec.priority == 2467 new_fcf_pri->fcf_rec.priority) 2468 phba->fcf.eligible_fcf_cnt--; 2469 list_del_init(&new_fcf_pri->list); 2470 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2471 } 2472 spin_unlock_irq(&phba->hbalock); 2473} 2474 2475/** 2476 * lpfc_sli4_set_fcf_flogi_fail 2477 * @phba: pointer to lpfc hba data structure. 2478 * @fcf_index: the index of the fcf record to update 2479 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2480 * flag so the round robin selection for the particular priority level 2481 * will try a different fcf record that does not have this bit set. 2482 * If the fcf record is re-read for any reason this flag is cleared brfore 2483 * adding it to the priority list. 2484 **/ 2485void 2486lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2487{ 2488 struct lpfc_fcf_pri *new_fcf_pri; 2489 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2490 spin_lock_irq(&phba->hbalock); 2491 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2492 spin_unlock_irq(&phba->hbalock); 2493} 2494 2495/** 2496 * lpfc_sli4_fcf_pri_list_add 2497 * @phba: pointer to lpfc hba data structure. 2498 * @fcf_index: the index of the fcf record to add 2499 * @new_fcf_record: pointer to a new FCF record. 2500 * This routine checks the priority of the fcf_index to be added. 2501 * If it is a lower priority than the current head of the fcf_pri list 2502 * then it is added to the list in the right order. 2503 * If it is the same priority as the current head of the list then it 2504 * is added to the head of the list and its bit in the rr_bmask is set. 2505 * If the fcf_index to be added is of a higher priority than the current 2506 * head of the list then the rr_bmask is cleared, its bit is set in the 2507 * rr_bmask and it is added to the head of the list. 2508 * returns: 2509 * 0=success 1=failure 2510 **/ 2511static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2512 uint16_t fcf_index, 2513 struct fcf_record *new_fcf_record) 2514{ 2515 uint16_t current_fcf_pri; 2516 uint16_t last_index; 2517 struct lpfc_fcf_pri *fcf_pri; 2518 struct lpfc_fcf_pri *next_fcf_pri; 2519 struct lpfc_fcf_pri *new_fcf_pri; 2520 int ret; 2521 2522 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2523 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2524 "3059 adding idx x%x pri x%x flg x%x\n", 2525 fcf_index, new_fcf_record->fip_priority, 2526 new_fcf_pri->fcf_rec.flag); 2527 spin_lock_irq(&phba->hbalock); 2528 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2529 list_del_init(&new_fcf_pri->list); 2530 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2531 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2532 if (list_empty(&phba->fcf.fcf_pri_list)) { 2533 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2534 ret = lpfc_sli4_fcf_rr_index_set(phba, 2535 new_fcf_pri->fcf_rec.fcf_index); 2536 goto out; 2537 } 2538 2539 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2540 LPFC_SLI4_FCF_TBL_INDX_MAX); 2541 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2542 ret = 0; /* Empty rr list */ 2543 goto out; 2544 } 2545 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2546 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2547 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2548 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2549 memset(phba->fcf.fcf_rr_bmask, 0, 2550 sizeof(*phba->fcf.fcf_rr_bmask)); 2551 /* fcfs_at_this_priority_level = 1; */ 2552 phba->fcf.eligible_fcf_cnt = 1; 2553 } else 2554 /* fcfs_at_this_priority_level++; */ 2555 phba->fcf.eligible_fcf_cnt++; 2556 ret = lpfc_sli4_fcf_rr_index_set(phba, 2557 new_fcf_pri->fcf_rec.fcf_index); 2558 goto out; 2559 } 2560 2561 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2562 &phba->fcf.fcf_pri_list, list) { 2563 if (new_fcf_pri->fcf_rec.priority <= 2564 fcf_pri->fcf_rec.priority) { 2565 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2566 list_add(&new_fcf_pri->list, 2567 &phba->fcf.fcf_pri_list); 2568 else 2569 list_add(&new_fcf_pri->list, 2570 &((struct lpfc_fcf_pri *) 2571 fcf_pri->list.prev)->list); 2572 ret = 0; 2573 goto out; 2574 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2575 || new_fcf_pri->fcf_rec.priority < 2576 next_fcf_pri->fcf_rec.priority) { 2577 list_add(&new_fcf_pri->list, &fcf_pri->list); 2578 ret = 0; 2579 goto out; 2580 } 2581 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2582 continue; 2583 2584 } 2585 ret = 1; 2586out: 2587 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2588 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2589 spin_unlock_irq(&phba->hbalock); 2590 return ret; 2591} 2592 2593/** 2594 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2595 * @phba: pointer to lpfc hba data structure. 2596 * @mboxq: pointer to mailbox object. 2597 * 2598 * This function iterates through all the fcf records available in 2599 * HBA and chooses the optimal FCF record for discovery. After finding 2600 * the FCF for discovery it registers the FCF record and kicks start 2601 * discovery. 2602 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2603 * use an FCF record which matches fabric name and mac address of the 2604 * currently used FCF record. 2605 * If the driver supports only one FCF, it will try to use the FCF record 2606 * used by BOOT_BIOS. 2607 */ 2608void 2609lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2610{ 2611 struct fcf_record *new_fcf_record; 2612 uint32_t boot_flag, addr_mode; 2613 uint16_t fcf_index, next_fcf_index; 2614 struct lpfc_fcf_rec *fcf_rec = NULL; 2615 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2616 bool select_new_fcf; 2617 int rc; 2618 2619 /* If there is pending FCoE event restart FCF table scan */ 2620 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2621 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2622 return; 2623 } 2624 2625 /* Parse the FCF record from the non-embedded mailbox command */ 2626 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2627 &next_fcf_index); 2628 if (!new_fcf_record) { 2629 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2630 "2765 Mailbox command READ_FCF_RECORD " 2631 "failed to retrieve a FCF record.\n"); 2632 /* Let next new FCF event trigger fast failover */ 2633 spin_lock_irq(&phba->hbalock); 2634 phba->hba_flag &= ~FCF_TS_INPROG; 2635 spin_unlock_irq(&phba->hbalock); 2636 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2637 return; 2638 } 2639 2640 /* Check the FCF record against the connection list */ 2641 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2642 &addr_mode, &vlan_id); 2643 2644 /* Log the FCF record information if turned on */ 2645 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2646 next_fcf_index); 2647 2648 /* 2649 * If the fcf record does not match with connect list entries 2650 * read the next entry; otherwise, this is an eligible FCF 2651 * record for roundrobin FCF failover. 2652 */ 2653 if (!rc) { 2654 lpfc_sli4_fcf_pri_list_del(phba, 2655 bf_get(lpfc_fcf_record_fcf_index, 2656 new_fcf_record)); 2657 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2658 "2781 FCF (x%x) failed connection " 2659 "list check: (x%x/x%x/%x)\n", 2660 bf_get(lpfc_fcf_record_fcf_index, 2661 new_fcf_record), 2662 bf_get(lpfc_fcf_record_fcf_avail, 2663 new_fcf_record), 2664 bf_get(lpfc_fcf_record_fcf_valid, 2665 new_fcf_record), 2666 bf_get(lpfc_fcf_record_fcf_sol, 2667 new_fcf_record)); 2668 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2669 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2670 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2671 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2672 phba->fcf.current_rec.fcf_indx) { 2673 lpfc_printf_log(phba, KERN_ERR, 2674 LOG_TRACE_EVENT, 2675 "2862 FCF (x%x) matches property " 2676 "of in-use FCF (x%x)\n", 2677 bf_get(lpfc_fcf_record_fcf_index, 2678 new_fcf_record), 2679 phba->fcf.current_rec.fcf_indx); 2680 goto read_next_fcf; 2681 } 2682 /* 2683 * In case the current in-use FCF record becomes 2684 * invalid/unavailable during FCF discovery that 2685 * was not triggered by fast FCF failover process, 2686 * treat it as fast FCF failover. 2687 */ 2688 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2689 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2690 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2691 "2835 Invalid in-use FCF " 2692 "(x%x), enter FCF failover " 2693 "table scan.\n", 2694 phba->fcf.current_rec.fcf_indx); 2695 spin_lock_irq(&phba->hbalock); 2696 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2697 spin_unlock_irq(&phba->hbalock); 2698 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2699 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2700 LPFC_FCOE_FCF_GET_FIRST); 2701 return; 2702 } 2703 } 2704 goto read_next_fcf; 2705 } else { 2706 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2707 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2708 new_fcf_record); 2709 if (rc) 2710 goto read_next_fcf; 2711 } 2712 2713 /* 2714 * If this is not the first FCF discovery of the HBA, use last 2715 * FCF record for the discovery. The condition that a rescan 2716 * matches the in-use FCF record: fabric name, switch name, mac 2717 * address, and vlan_id. 2718 */ 2719 spin_lock_irq(&phba->hbalock); 2720 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2721 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2722 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2723 new_fcf_record, vlan_id)) { 2724 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2725 phba->fcf.current_rec.fcf_indx) { 2726 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2727 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2728 /* Stop FCF redisc wait timer */ 2729 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2730 phba); 2731 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2732 /* Fast failover, mark completed */ 2733 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2734 spin_unlock_irq(&phba->hbalock); 2735 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2736 "2836 New FCF matches in-use " 2737 "FCF (x%x), port_state:x%x, " 2738 "fc_flag:x%lx\n", 2739 phba->fcf.current_rec.fcf_indx, 2740 phba->pport->port_state, 2741 phba->pport->fc_flag); 2742 goto out; 2743 } else 2744 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2745 "2863 New FCF (x%x) matches " 2746 "property of in-use FCF (x%x)\n", 2747 bf_get(lpfc_fcf_record_fcf_index, 2748 new_fcf_record), 2749 phba->fcf.current_rec.fcf_indx); 2750 } 2751 /* 2752 * Read next FCF record from HBA searching for the matching 2753 * with in-use record only if not during the fast failover 2754 * period. In case of fast failover period, it shall try to 2755 * determine whether the FCF record just read should be the 2756 * next candidate. 2757 */ 2758 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2759 spin_unlock_irq(&phba->hbalock); 2760 goto read_next_fcf; 2761 } 2762 } 2763 /* 2764 * Update on failover FCF record only if it's in FCF fast-failover 2765 * period; otherwise, update on current FCF record. 2766 */ 2767 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2768 fcf_rec = &phba->fcf.failover_rec; 2769 else 2770 fcf_rec = &phba->fcf.current_rec; 2771 2772 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2773 /* 2774 * If the driver FCF record does not have boot flag 2775 * set and new hba fcf record has boot flag set, use 2776 * the new hba fcf record. 2777 */ 2778 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2779 /* Choose this FCF record */ 2780 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2781 "2837 Update current FCF record " 2782 "(x%x) with new FCF record (x%x)\n", 2783 fcf_rec->fcf_indx, 2784 bf_get(lpfc_fcf_record_fcf_index, 2785 new_fcf_record)); 2786 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2787 addr_mode, vlan_id, BOOT_ENABLE); 2788 spin_unlock_irq(&phba->hbalock); 2789 goto read_next_fcf; 2790 } 2791 /* 2792 * If the driver FCF record has boot flag set and the 2793 * new hba FCF record does not have boot flag, read 2794 * the next FCF record. 2795 */ 2796 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2797 spin_unlock_irq(&phba->hbalock); 2798 goto read_next_fcf; 2799 } 2800 /* 2801 * If the new hba FCF record has lower priority value 2802 * than the driver FCF record, use the new record. 2803 */ 2804 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2805 /* Choose the new FCF record with lower priority */ 2806 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2807 "2838 Update current FCF record " 2808 "(x%x) with new FCF record (x%x)\n", 2809 fcf_rec->fcf_indx, 2810 bf_get(lpfc_fcf_record_fcf_index, 2811 new_fcf_record)); 2812 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2813 addr_mode, vlan_id, 0); 2814 /* Reset running random FCF selection count */ 2815 phba->fcf.eligible_fcf_cnt = 1; 2816 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2817 /* Update running random FCF selection count */ 2818 phba->fcf.eligible_fcf_cnt++; 2819 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2820 phba->fcf.eligible_fcf_cnt); 2821 if (select_new_fcf) { 2822 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2823 "2839 Update current FCF record " 2824 "(x%x) with new FCF record (x%x)\n", 2825 fcf_rec->fcf_indx, 2826 bf_get(lpfc_fcf_record_fcf_index, 2827 new_fcf_record)); 2828 /* Choose the new FCF by random selection */ 2829 __lpfc_update_fcf_record(phba, fcf_rec, 2830 new_fcf_record, 2831 addr_mode, vlan_id, 0); 2832 } 2833 } 2834 spin_unlock_irq(&phba->hbalock); 2835 goto read_next_fcf; 2836 } 2837 /* 2838 * This is the first suitable FCF record, choose this record for 2839 * initial best-fit FCF. 2840 */ 2841 if (fcf_rec) { 2842 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2843 "2840 Update initial FCF candidate " 2844 "with FCF (x%x)\n", 2845 bf_get(lpfc_fcf_record_fcf_index, 2846 new_fcf_record)); 2847 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2848 addr_mode, vlan_id, (boot_flag ? 2849 BOOT_ENABLE : 0)); 2850 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2851 /* Setup initial running random FCF selection count */ 2852 phba->fcf.eligible_fcf_cnt = 1; 2853 } 2854 spin_unlock_irq(&phba->hbalock); 2855 goto read_next_fcf; 2856 2857read_next_fcf: 2858 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2859 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2860 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2861 /* 2862 * Case of FCF fast failover scan 2863 */ 2864 2865 /* 2866 * It has not found any suitable FCF record, cancel 2867 * FCF scan inprogress, and do nothing 2868 */ 2869 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2870 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2871 "2782 No suitable FCF found: " 2872 "(x%x/x%x)\n", 2873 phba->fcoe_eventtag_at_fcf_scan, 2874 bf_get(lpfc_fcf_record_fcf_index, 2875 new_fcf_record)); 2876 spin_lock_irq(&phba->hbalock); 2877 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2878 phba->hba_flag &= ~FCF_TS_INPROG; 2879 spin_unlock_irq(&phba->hbalock); 2880 /* Unregister in-use FCF and rescan */ 2881 lpfc_printf_log(phba, KERN_INFO, 2882 LOG_FIP, 2883 "2864 On devloss tmo " 2884 "unreg in-use FCF and " 2885 "rescan FCF table\n"); 2886 lpfc_unregister_fcf_rescan(phba); 2887 return; 2888 } 2889 /* 2890 * Let next new FCF event trigger fast failover 2891 */ 2892 phba->hba_flag &= ~FCF_TS_INPROG; 2893 spin_unlock_irq(&phba->hbalock); 2894 return; 2895 } 2896 /* 2897 * It has found a suitable FCF record that is not 2898 * the same as in-use FCF record, unregister the 2899 * in-use FCF record, replace the in-use FCF record 2900 * with the new FCF record, mark FCF fast failover 2901 * completed, and then start register the new FCF 2902 * record. 2903 */ 2904 2905 /* Unregister the current in-use FCF record */ 2906 lpfc_unregister_fcf(phba); 2907 2908 /* Replace in-use record with the new record */ 2909 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2910 "2842 Replace in-use FCF (x%x) " 2911 "with failover FCF (x%x)\n", 2912 phba->fcf.current_rec.fcf_indx, 2913 phba->fcf.failover_rec.fcf_indx); 2914 memcpy(&phba->fcf.current_rec, 2915 &phba->fcf.failover_rec, 2916 sizeof(struct lpfc_fcf_rec)); 2917 /* 2918 * Mark the fast FCF failover rediscovery completed 2919 * and the start of the first round of the roundrobin 2920 * FCF failover. 2921 */ 2922 spin_lock_irq(&phba->hbalock); 2923 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2924 spin_unlock_irq(&phba->hbalock); 2925 /* Register to the new FCF record */ 2926 lpfc_register_fcf(phba); 2927 } else { 2928 /* 2929 * In case of transaction period to fast FCF failover, 2930 * do nothing when search to the end of the FCF table. 2931 */ 2932 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2933 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2934 return; 2935 2936 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2937 phba->fcf.fcf_flag & FCF_IN_USE) { 2938 /* 2939 * In case the current in-use FCF record no 2940 * longer existed during FCF discovery that 2941 * was not triggered by fast FCF failover 2942 * process, treat it as fast FCF failover. 2943 */ 2944 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2945 "2841 In-use FCF record (x%x) " 2946 "not reported, entering fast " 2947 "FCF failover mode scanning.\n", 2948 phba->fcf.current_rec.fcf_indx); 2949 spin_lock_irq(&phba->hbalock); 2950 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2951 spin_unlock_irq(&phba->hbalock); 2952 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2953 LPFC_FCOE_FCF_GET_FIRST); 2954 return; 2955 } 2956 /* Register to the new FCF record */ 2957 lpfc_register_fcf(phba); 2958 } 2959 } else 2960 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2961 return; 2962 2963out: 2964 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2965 lpfc_register_fcf(phba); 2966 2967 return; 2968} 2969 2970/** 2971 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2972 * @phba: pointer to lpfc hba data structure. 2973 * @mboxq: pointer to mailbox object. 2974 * 2975 * This is the callback function for FLOGI failure roundrobin FCF failover 2976 * read FCF record mailbox command from the eligible FCF record bmask for 2977 * performing the failover. If the FCF read back is not valid/available, it 2978 * fails through to retrying FLOGI to the currently registered FCF again. 2979 * Otherwise, if the FCF read back is valid and available, it will set the 2980 * newly read FCF record to the failover FCF record, unregister currently 2981 * registered FCF record, copy the failover FCF record to the current 2982 * FCF record, and then register the current FCF record before proceeding 2983 * to trying FLOGI on the new failover FCF. 2984 */ 2985void 2986lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2987{ 2988 struct fcf_record *new_fcf_record; 2989 uint32_t boot_flag, addr_mode; 2990 uint16_t next_fcf_index, fcf_index; 2991 uint16_t current_fcf_index; 2992 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2993 int rc; 2994 2995 /* If link state is not up, stop the roundrobin failover process */ 2996 if (phba->link_state < LPFC_LINK_UP) { 2997 spin_lock_irq(&phba->hbalock); 2998 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2999 phba->hba_flag &= ~FCF_RR_INPROG; 3000 spin_unlock_irq(&phba->hbalock); 3001 goto out; 3002 } 3003 3004 /* Parse the FCF record from the non-embedded mailbox command */ 3005 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 3006 &next_fcf_index); 3007 if (!new_fcf_record) { 3008 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 3009 "2766 Mailbox command READ_FCF_RECORD " 3010 "failed to retrieve a FCF record. " 3011 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 3012 phba->fcf.fcf_flag); 3013 lpfc_unregister_fcf_rescan(phba); 3014 goto out; 3015 } 3016 3017 /* Get the needed parameters from FCF record */ 3018 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 3019 &addr_mode, &vlan_id); 3020 3021 /* Log the FCF record information if turned on */ 3022 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 3023 next_fcf_index); 3024 3025 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3026 if (!rc) { 3027 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3028 "2848 Remove ineligible FCF (x%x) from " 3029 "from roundrobin bmask\n", fcf_index); 3030 /* Clear roundrobin bmask bit for ineligible FCF */ 3031 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 3032 /* Perform next round of roundrobin FCF failover */ 3033 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 3034 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 3035 if (rc) 3036 goto out; 3037 goto error_out; 3038 } 3039 3040 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 3041 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3042 "2760 Perform FLOGI roundrobin FCF failover: " 3043 "FCF (x%x) back to FCF (x%x)\n", 3044 phba->fcf.current_rec.fcf_indx, fcf_index); 3045 /* Wait 500 ms before retrying FLOGI to current FCF */ 3046 msleep(500); 3047 lpfc_issue_init_vfi(phba->pport); 3048 goto out; 3049 } 3050 3051 /* Upload new FCF record to the failover FCF record */ 3052 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3053 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 3054 phba->fcf.failover_rec.fcf_indx, fcf_index); 3055 spin_lock_irq(&phba->hbalock); 3056 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 3057 new_fcf_record, addr_mode, vlan_id, 3058 (boot_flag ? BOOT_ENABLE : 0)); 3059 spin_unlock_irq(&phba->hbalock); 3060 3061 current_fcf_index = phba->fcf.current_rec.fcf_indx; 3062 3063 /* Unregister the current in-use FCF record */ 3064 lpfc_unregister_fcf(phba); 3065 3066 /* Replace in-use record with the new record */ 3067 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 3068 sizeof(struct lpfc_fcf_rec)); 3069 3070 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3071 "2783 Perform FLOGI roundrobin FCF failover: FCF " 3072 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 3073 3074error_out: 3075 lpfc_register_fcf(phba); 3076out: 3077 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3078} 3079 3080/** 3081 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 3082 * @phba: pointer to lpfc hba data structure. 3083 * @mboxq: pointer to mailbox object. 3084 * 3085 * This is the callback function of read FCF record mailbox command for 3086 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 3087 * failover when a new FCF event happened. If the FCF read back is 3088 * valid/available and it passes the connection list check, it updates 3089 * the bmask for the eligible FCF record for roundrobin failover. 3090 */ 3091void 3092lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3093{ 3094 struct fcf_record *new_fcf_record; 3095 uint32_t boot_flag, addr_mode; 3096 uint16_t fcf_index, next_fcf_index; 3097 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 3098 int rc; 3099 3100 /* If link state is not up, no need to proceed */ 3101 if (phba->link_state < LPFC_LINK_UP) 3102 goto out; 3103 3104 /* If FCF discovery period is over, no need to proceed */ 3105 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 3106 goto out; 3107 3108 /* Parse the FCF record from the non-embedded mailbox command */ 3109 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 3110 &next_fcf_index); 3111 if (!new_fcf_record) { 3112 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3113 "2767 Mailbox command READ_FCF_RECORD " 3114 "failed to retrieve a FCF record.\n"); 3115 goto out; 3116 } 3117 3118 /* Check the connection list for eligibility */ 3119 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 3120 &addr_mode, &vlan_id); 3121 3122 /* Log the FCF record information if turned on */ 3123 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 3124 next_fcf_index); 3125 3126 if (!rc) 3127 goto out; 3128 3129 /* Update the eligible FCF record index bmask */ 3130 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3131 3132 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 3133 3134out: 3135 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3136} 3137 3138/** 3139 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 3140 * @phba: pointer to lpfc hba data structure. 3141 * @mboxq: pointer to mailbox data structure. 3142 * 3143 * This function handles completion of init vfi mailbox command. 3144 */ 3145static void 3146lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3147{ 3148 struct lpfc_vport *vport = mboxq->vport; 3149 3150 /* 3151 * VFI not supported on interface type 0, just do the flogi 3152 * Also continue if the VFI is in use - just use the same one. 3153 */ 3154 if (mboxq->u.mb.mbxStatus && 3155 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3156 LPFC_SLI_INTF_IF_TYPE_0) && 3157 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3158 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3159 "2891 Init VFI mailbox failed 0x%x\n", 3160 mboxq->u.mb.mbxStatus); 3161 mempool_free(mboxq, phba->mbox_mem_pool); 3162 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3163 return; 3164 } 3165 3166 lpfc_initial_flogi(vport); 3167 mempool_free(mboxq, phba->mbox_mem_pool); 3168 return; 3169} 3170 3171/** 3172 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 3173 * @vport: pointer to lpfc_vport data structure. 3174 * 3175 * This function issue a init_vfi mailbox command to initialize the VFI and 3176 * VPI for the physical port. 3177 */ 3178void 3179lpfc_issue_init_vfi(struct lpfc_vport *vport) 3180{ 3181 LPFC_MBOXQ_t *mboxq; 3182 int rc; 3183 struct lpfc_hba *phba = vport->phba; 3184 3185 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3186 if (!mboxq) { 3187 lpfc_printf_vlog(vport, KERN_ERR, 3188 LOG_TRACE_EVENT, "2892 Failed to allocate " 3189 "init_vfi mailbox\n"); 3190 return; 3191 } 3192 lpfc_init_vfi(mboxq, vport); 3193 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 3194 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 3195 if (rc == MBX_NOT_FINISHED) { 3196 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3197 "2893 Failed to issue init_vfi mailbox\n"); 3198 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3199 } 3200} 3201 3202/** 3203 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 3204 * @phba: pointer to lpfc hba data structure. 3205 * @mboxq: pointer to mailbox data structure. 3206 * 3207 * This function handles completion of init vpi mailbox command. 3208 */ 3209void 3210lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3211{ 3212 struct lpfc_vport *vport = mboxq->vport; 3213 struct lpfc_nodelist *ndlp; 3214 3215 if (mboxq->u.mb.mbxStatus) { 3216 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3217 "2609 Init VPI mailbox failed 0x%x\n", 3218 mboxq->u.mb.mbxStatus); 3219 mempool_free(mboxq, phba->mbox_mem_pool); 3220 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3221 return; 3222 } 3223 clear_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); 3224 3225 /* If this port is physical port or FDISC is done, do reg_vpi */ 3226 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 3227 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3228 if (!ndlp) 3229 lpfc_printf_vlog(vport, KERN_ERR, 3230 LOG_TRACE_EVENT, 3231 "2731 Cannot find fabric " 3232 "controller node\n"); 3233 else 3234 lpfc_register_new_vport(phba, vport, ndlp); 3235 mempool_free(mboxq, phba->mbox_mem_pool); 3236 return; 3237 } 3238 3239 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3240 lpfc_initial_fdisc(vport); 3241 else { 3242 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 3243 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3244 "2606 No NPIV Fabric support\n"); 3245 } 3246 mempool_free(mboxq, phba->mbox_mem_pool); 3247 return; 3248} 3249 3250/** 3251 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 3252 * @vport: pointer to lpfc_vport data structure. 3253 * 3254 * This function issue a init_vpi mailbox command to initialize 3255 * VPI for the vport. 3256 */ 3257void 3258lpfc_issue_init_vpi(struct lpfc_vport *vport) 3259{ 3260 LPFC_MBOXQ_t *mboxq; 3261 int rc, vpi; 3262 3263 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 3264 vpi = lpfc_alloc_vpi(vport->phba); 3265 if (!vpi) { 3266 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3267 "3303 Failed to obtain vport vpi\n"); 3268 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3269 return; 3270 } 3271 vport->vpi = vpi; 3272 } 3273 3274 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 3275 if (!mboxq) { 3276 lpfc_printf_vlog(vport, KERN_ERR, 3277 LOG_TRACE_EVENT, "2607 Failed to allocate " 3278 "init_vpi mailbox\n"); 3279 return; 3280 } 3281 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 3282 mboxq->vport = vport; 3283 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 3284 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 3285 if (rc == MBX_NOT_FINISHED) { 3286 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3287 "2608 Failed to issue init_vpi mailbox\n"); 3288 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3289 } 3290} 3291 3292/** 3293 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 3294 * @phba: pointer to lpfc hba data structure. 3295 * 3296 * This function loops through the list of vports on the @phba and issues an 3297 * FDISC if possible. 3298 */ 3299void 3300lpfc_start_fdiscs(struct lpfc_hba *phba) 3301{ 3302 struct lpfc_vport **vports; 3303 int i; 3304 3305 vports = lpfc_create_vport_work_array(phba); 3306 if (vports != NULL) { 3307 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3308 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 3309 continue; 3310 /* There are no vpi for this vport */ 3311 if (vports[i]->vpi > phba->max_vpi) { 3312 lpfc_vport_set_state(vports[i], 3313 FC_VPORT_FAILED); 3314 continue; 3315 } 3316 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3317 lpfc_vport_set_state(vports[i], 3318 FC_VPORT_LINKDOWN); 3319 continue; 3320 } 3321 if (test_bit(FC_VPORT_NEEDS_INIT_VPI, 3322 &vports[i]->fc_flag)) { 3323 lpfc_issue_init_vpi(vports[i]); 3324 continue; 3325 } 3326 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3327 lpfc_initial_fdisc(vports[i]); 3328 else { 3329 lpfc_vport_set_state(vports[i], 3330 FC_VPORT_NO_FABRIC_SUPP); 3331 lpfc_printf_vlog(vports[i], KERN_ERR, 3332 LOG_TRACE_EVENT, 3333 "0259 No NPIV " 3334 "Fabric support\n"); 3335 } 3336 } 3337 } 3338 lpfc_destroy_vport_work_array(phba, vports); 3339} 3340 3341void 3342lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3343{ 3344 struct lpfc_vport *vport = mboxq->vport; 3345 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3346 3347 /* 3348 * VFI not supported for interface type 0, so ignore any mailbox 3349 * error (except VFI in use) and continue with the discovery. 3350 */ 3351 if (mboxq->u.mb.mbxStatus && 3352 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3353 LPFC_SLI_INTF_IF_TYPE_0) && 3354 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3355 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3356 "2018 REG_VFI mbxStatus error x%x " 3357 "HBA state x%x\n", 3358 mboxq->u.mb.mbxStatus, vport->port_state); 3359 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3360 /* FLOGI failed, use loop map to make discovery list */ 3361 lpfc_disc_list_loopmap(vport); 3362 /* Start discovery */ 3363 lpfc_disc_start(vport); 3364 goto out_free_mem; 3365 } 3366 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3367 goto out_free_mem; 3368 } 3369 3370 /* If the VFI is already registered, there is nothing else to do 3371 * Unless this was a VFI update and we are in PT2PT mode, then 3372 * we should drop through to set the port state to ready. 3373 */ 3374 if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) 3375 if (!(phba->sli_rev == LPFC_SLI_REV4 && 3376 test_bit(FC_PT2PT, &vport->fc_flag))) 3377 goto out_free_mem; 3378 3379 /* The VPI is implicitly registered when the VFI is registered */ 3380 set_bit(FC_VFI_REGISTERED, &vport->fc_flag); 3381 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 3382 clear_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); 3383 spin_lock_irq(shost->host_lock); 3384 vport->vpi_state |= LPFC_VPI_REGISTERED; 3385 spin_unlock_irq(shost->host_lock); 3386 3387 /* In case SLI4 FC loopback test, we are ready */ 3388 if ((phba->sli_rev == LPFC_SLI_REV4) && 3389 (phba->link_flag & LS_LOOPBACK_MODE)) { 3390 phba->link_state = LPFC_HBA_READY; 3391 goto out_free_mem; 3392 } 3393 3394 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3395 "3313 cmpl reg vfi port_state:%x fc_flag:%lx " 3396 "myDid:%x alpacnt:%d LinkState:%x topology:%x\n", 3397 vport->port_state, vport->fc_flag, vport->fc_myDID, 3398 vport->phba->alpa_map[0], 3399 phba->link_state, phba->fc_topology); 3400 3401 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3402 /* 3403 * For private loop or for NPort pt2pt, 3404 * just start discovery and we are done. 3405 */ 3406 if (test_bit(FC_PT2PT, &vport->fc_flag) || 3407 (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 3408 !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))) { 3409 3410 /* Use loop map to make discovery list */ 3411 lpfc_disc_list_loopmap(vport); 3412 /* Start discovery */ 3413 if (test_bit(FC_PT2PT, &vport->fc_flag)) 3414 vport->port_state = LPFC_VPORT_READY; 3415 else 3416 lpfc_disc_start(vport); 3417 } else { 3418 lpfc_start_fdiscs(phba); 3419 lpfc_do_scr_ns_plogi(phba, vport); 3420 } 3421 } 3422 3423out_free_mem: 3424 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); 3425} 3426 3427static void 3428lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3429{ 3430 MAILBOX_t *mb = &pmb->u.mb; 3431 struct lpfc_dmabuf *mp = pmb->ctx_buf; 3432 struct lpfc_vport *vport = pmb->vport; 3433 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3434 struct serv_parm *sp = &vport->fc_sparam; 3435 uint32_t ed_tov; 3436 3437 /* Check for error */ 3438 if (mb->mbxStatus) { 3439 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3440 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3441 "0319 READ_SPARAM mbxStatus error x%x " 3442 "hba state x%x>\n", 3443 mb->mbxStatus, vport->port_state); 3444 lpfc_linkdown(phba); 3445 goto out; 3446 } 3447 3448 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3449 sizeof (struct serv_parm)); 3450 3451 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3452 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3453 ed_tov = (ed_tov + 999999) / 1000000; 3454 3455 phba->fc_edtov = ed_tov; 3456 phba->fc_ratov = (2 * ed_tov) / 1000; 3457 if (phba->fc_ratov < FF_DEF_RATOV) { 3458 /* RA_TOV should be atleast 10sec for initial flogi */ 3459 phba->fc_ratov = FF_DEF_RATOV; 3460 } 3461 3462 lpfc_update_vport_wwn(vport); 3463 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3464 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3465 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3466 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3467 } 3468 3469 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3470 3471 /* Check if sending the FLOGI is being deferred to after we get 3472 * up to date CSPs from MBX_READ_SPARAM. 3473 */ 3474 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3475 lpfc_initial_flogi(vport); 3476 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3477 } 3478 return; 3479 3480out: 3481 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3482 lpfc_issue_clear_la(phba, vport); 3483} 3484 3485static void 3486lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3487{ 3488 struct lpfc_vport *vport = phba->pport; 3489 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3490 int i; 3491 int rc; 3492 struct fcf_record *fcf_record; 3493 unsigned long iflags; 3494 3495 spin_lock_irqsave(&phba->hbalock, iflags); 3496 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3497 3498 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3499 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3500 case LPFC_LINK_SPEED_1GHZ: 3501 case LPFC_LINK_SPEED_2GHZ: 3502 case LPFC_LINK_SPEED_4GHZ: 3503 case LPFC_LINK_SPEED_8GHZ: 3504 case LPFC_LINK_SPEED_10GHZ: 3505 case LPFC_LINK_SPEED_16GHZ: 3506 case LPFC_LINK_SPEED_32GHZ: 3507 case LPFC_LINK_SPEED_64GHZ: 3508 case LPFC_LINK_SPEED_128GHZ: 3509 case LPFC_LINK_SPEED_256GHZ: 3510 break; 3511 default: 3512 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3513 break; 3514 } 3515 } 3516 3517 if (phba->fc_topology && 3518 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3519 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3520 "3314 Toplogy changed was 0x%x is 0x%x\n", 3521 phba->fc_topology, 3522 bf_get(lpfc_mbx_read_top_topology, la)); 3523 phba->fc_topology_changed = 1; 3524 } 3525 3526 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3527 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA); 3528 3529 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3530 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3531 3532 /* if npiv is enabled and this adapter supports npiv log 3533 * a message that npiv is not supported in this topology 3534 */ 3535 if (phba->cfg_enable_npiv && phba->max_vpi) 3536 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3537 "1309 Link Up Event npiv not supported in loop " 3538 "topology\n"); 3539 /* Get Loop Map information */ 3540 if (bf_get(lpfc_mbx_read_top_il, la)) 3541 set_bit(FC_LBIT, &vport->fc_flag); 3542 3543 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3544 i = la->lilpBde64.tus.f.bdeSize; 3545 3546 if (i == 0) { 3547 phba->alpa_map[0] = 0; 3548 } else { 3549 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3550 int numalpa, j, k; 3551 union { 3552 uint8_t pamap[16]; 3553 struct { 3554 uint32_t wd1; 3555 uint32_t wd2; 3556 uint32_t wd3; 3557 uint32_t wd4; 3558 } pa; 3559 } un; 3560 numalpa = phba->alpa_map[0]; 3561 j = 0; 3562 while (j < numalpa) { 3563 memset(un.pamap, 0, 16); 3564 for (k = 1; j < numalpa; k++) { 3565 un.pamap[k - 1] = 3566 phba->alpa_map[j + 1]; 3567 j++; 3568 if (k == 16) 3569 break; 3570 } 3571 /* Link Up Event ALPA map */ 3572 lpfc_printf_log(phba, 3573 KERN_WARNING, 3574 LOG_LINK_EVENT, 3575 "1304 Link Up Event " 3576 "ALPA map Data: x%x " 3577 "x%x x%x x%x\n", 3578 un.pa.wd1, un.pa.wd2, 3579 un.pa.wd3, un.pa.wd4); 3580 } 3581 } 3582 } 3583 } else { 3584 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3585 if (phba->max_vpi && phba->cfg_enable_npiv && 3586 (phba->sli_rev >= LPFC_SLI_REV3)) 3587 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3588 } 3589 vport->fc_myDID = phba->fc_pref_DID; 3590 set_bit(FC_LBIT, &vport->fc_flag); 3591 } 3592 spin_unlock_irqrestore(&phba->hbalock, iflags); 3593 3594 lpfc_linkup(phba); 3595 sparam_mbox = NULL; 3596 3597 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3598 if (!sparam_mbox) 3599 goto out; 3600 3601 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3602 if (rc) { 3603 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3604 goto out; 3605 } 3606 sparam_mbox->vport = vport; 3607 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3608 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3609 if (rc == MBX_NOT_FINISHED) { 3610 lpfc_mbox_rsrc_cleanup(phba, sparam_mbox, MBOX_THD_UNLOCKED); 3611 goto out; 3612 } 3613 3614 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3615 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3616 if (!cfglink_mbox) 3617 goto out; 3618 vport->port_state = LPFC_LOCAL_CFG_LINK; 3619 lpfc_config_link(phba, cfglink_mbox); 3620 cfglink_mbox->vport = vport; 3621 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3622 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3623 if (rc == MBX_NOT_FINISHED) { 3624 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3625 goto out; 3626 } 3627 } else { 3628 vport->port_state = LPFC_VPORT_UNKNOWN; 3629 /* 3630 * Add the driver's default FCF record at FCF index 0 now. This 3631 * is phase 1 implementation that support FCF index 0 and driver 3632 * defaults. 3633 */ 3634 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3635 fcf_record = kzalloc(sizeof(struct fcf_record), 3636 GFP_KERNEL); 3637 if (unlikely(!fcf_record)) { 3638 lpfc_printf_log(phba, KERN_ERR, 3639 LOG_TRACE_EVENT, 3640 "2554 Could not allocate memory for " 3641 "fcf record\n"); 3642 rc = -ENODEV; 3643 goto out; 3644 } 3645 3646 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3647 LPFC_FCOE_FCF_DEF_INDEX); 3648 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3649 if (unlikely(rc)) { 3650 lpfc_printf_log(phba, KERN_ERR, 3651 LOG_TRACE_EVENT, 3652 "2013 Could not manually add FCF " 3653 "record 0, status %d\n", rc); 3654 rc = -ENODEV; 3655 kfree(fcf_record); 3656 goto out; 3657 } 3658 kfree(fcf_record); 3659 } 3660 /* 3661 * The driver is expected to do FIP/FCF. Call the port 3662 * and get the FCF Table. 3663 */ 3664 spin_lock_irqsave(&phba->hbalock, iflags); 3665 if (phba->hba_flag & FCF_TS_INPROG) { 3666 spin_unlock_irqrestore(&phba->hbalock, iflags); 3667 return; 3668 } 3669 /* This is the initial FCF discovery scan */ 3670 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3671 spin_unlock_irqrestore(&phba->hbalock, iflags); 3672 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3673 "2778 Start FCF table scan at linkup\n"); 3674 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3675 LPFC_FCOE_FCF_GET_FIRST); 3676 if (rc) { 3677 spin_lock_irqsave(&phba->hbalock, iflags); 3678 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3679 spin_unlock_irqrestore(&phba->hbalock, iflags); 3680 goto out; 3681 } 3682 /* Reset FCF roundrobin bmask for new discovery */ 3683 lpfc_sli4_clear_fcf_rr_bmask(phba); 3684 } 3685 3686 /* Prepare for LINK up registrations */ 3687 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3688 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3689 init_utsname()->nodename); 3690 return; 3691out: 3692 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3693 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3694 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3695 vport->port_state, sparam_mbox, cfglink_mbox); 3696 lpfc_issue_clear_la(phba, vport); 3697 return; 3698} 3699 3700static void 3701lpfc_enable_la(struct lpfc_hba *phba) 3702{ 3703 uint32_t control; 3704 struct lpfc_sli *psli = &phba->sli; 3705 spin_lock_irq(&phba->hbalock); 3706 psli->sli_flag |= LPFC_PROCESS_LA; 3707 if (phba->sli_rev <= LPFC_SLI_REV3) { 3708 control = readl(phba->HCregaddr); 3709 control |= HC_LAINT_ENA; 3710 writel(control, phba->HCregaddr); 3711 readl(phba->HCregaddr); /* flush */ 3712 } 3713 spin_unlock_irq(&phba->hbalock); 3714} 3715 3716static void 3717lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3718{ 3719 lpfc_linkdown(phba); 3720 lpfc_enable_la(phba); 3721 lpfc_unregister_unused_fcf(phba); 3722 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3723} 3724 3725 3726/* 3727 * This routine handles processing a READ_TOPOLOGY mailbox 3728 * command upon completion. It is setup in the LPFC_MBOXQ 3729 * as the completion routine when the command is 3730 * handed off to the SLI layer. SLI4 only. 3731 */ 3732void 3733lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3734{ 3735 struct lpfc_vport *vport = pmb->vport; 3736 struct lpfc_mbx_read_top *la; 3737 struct lpfc_sli_ring *pring; 3738 MAILBOX_t *mb = &pmb->u.mb; 3739 struct lpfc_dmabuf *mp = pmb->ctx_buf; 3740 uint8_t attn_type; 3741 3742 /* Unblock ELS traffic */ 3743 pring = lpfc_phba_elsring(phba); 3744 if (pring) 3745 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3746 3747 /* Check for error */ 3748 if (mb->mbxStatus) { 3749 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3750 "1307 READ_LA mbox error x%x state x%x\n", 3751 mb->mbxStatus, vport->port_state); 3752 lpfc_mbx_issue_link_down(phba); 3753 phba->link_state = LPFC_HBA_ERROR; 3754 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3755 } 3756 3757 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3758 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3759 3760 memcpy(&phba->alpa_map[0], mp->virt, 128); 3761 3762 if (bf_get(lpfc_mbx_read_top_pb, la)) 3763 set_bit(FC_BYPASSED_MODE, &vport->fc_flag); 3764 else 3765 clear_bit(FC_BYPASSED_MODE, &vport->fc_flag); 3766 3767 if (phba->fc_eventTag <= la->eventTag) { 3768 phba->fc_stat.LinkMultiEvent++; 3769 if (attn_type == LPFC_ATT_LINK_UP) 3770 if (phba->fc_eventTag != 0) 3771 lpfc_linkdown(phba); 3772 } 3773 3774 phba->fc_eventTag = la->eventTag; 3775 phba->link_events++; 3776 if (attn_type == LPFC_ATT_LINK_UP) { 3777 phba->fc_stat.LinkUp++; 3778 if (phba->link_flag & LS_LOOPBACK_MODE) { 3779 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3780 "1306 Link Up Event in loop back mode " 3781 "x%x received Data: x%x x%x x%x x%x\n", 3782 la->eventTag, phba->fc_eventTag, 3783 bf_get(lpfc_mbx_read_top_alpa_granted, 3784 la), 3785 bf_get(lpfc_mbx_read_top_link_spd, la), 3786 phba->alpa_map[0]); 3787 } else { 3788 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3789 "1303 Link Up Event x%x received " 3790 "Data: x%x x%x x%x x%x x%x\n", 3791 la->eventTag, phba->fc_eventTag, 3792 bf_get(lpfc_mbx_read_top_alpa_granted, 3793 la), 3794 bf_get(lpfc_mbx_read_top_link_spd, la), 3795 phba->alpa_map[0], 3796 bf_get(lpfc_mbx_read_top_fa, la)); 3797 } 3798 lpfc_mbx_process_link_up(phba, la); 3799 3800 if (phba->cmf_active_mode != LPFC_CFG_OFF) 3801 lpfc_cmf_signal_init(phba); 3802 3803 if (phba->lmt & LMT_64Gb) 3804 lpfc_read_lds_params(phba); 3805 3806 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3807 attn_type == LPFC_ATT_UNEXP_WWPN) { 3808 phba->fc_stat.LinkDown++; 3809 if (phba->link_flag & LS_LOOPBACK_MODE) 3810 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3811 "1308 Link Down Event in loop back mode " 3812 "x%x received " 3813 "Data: x%x x%x x%lx\n", 3814 la->eventTag, phba->fc_eventTag, 3815 phba->pport->port_state, vport->fc_flag); 3816 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3817 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3818 "1313 Link Down Unexpected FA WWPN Event x%x " 3819 "received Data: x%x x%x x%lx x%x\n", 3820 la->eventTag, phba->fc_eventTag, 3821 phba->pport->port_state, vport->fc_flag, 3822 bf_get(lpfc_mbx_read_top_fa, la)); 3823 else 3824 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3825 "1305 Link Down Event x%x received " 3826 "Data: x%x x%x x%lx x%x\n", 3827 la->eventTag, phba->fc_eventTag, 3828 phba->pport->port_state, vport->fc_flag, 3829 bf_get(lpfc_mbx_read_top_fa, la)); 3830 lpfc_mbx_issue_link_down(phba); 3831 } 3832 3833 if ((phba->sli_rev < LPFC_SLI_REV4) && 3834 bf_get(lpfc_mbx_read_top_fa, la)) 3835 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3836 "1311 fa %d\n", 3837 bf_get(lpfc_mbx_read_top_fa, la)); 3838 3839lpfc_mbx_cmpl_read_topology_free_mbuf: 3840 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3841} 3842 3843/* 3844 * This routine handles processing a REG_LOGIN mailbox 3845 * command upon completion. It is setup in the LPFC_MBOXQ 3846 * as the completion routine when the command is 3847 * handed off to the SLI layer. 3848 */ 3849void 3850lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3851{ 3852 struct lpfc_vport *vport = pmb->vport; 3853 struct lpfc_dmabuf *mp = pmb->ctx_buf; 3854 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 3855 3856 /* The driver calls the state machine with the pmb pointer 3857 * but wants to make sure a stale ctx_buf isn't acted on. 3858 * The ctx_buf is restored later and cleaned up. 3859 */ 3860 pmb->ctx_buf = NULL; 3861 pmb->ctx_ndlp = NULL; 3862 3863 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY, 3864 "0002 rpi:%x DID:%x flg:%x %d x%px\n", 3865 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3866 kref_read(&ndlp->kref), 3867 ndlp); 3868 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3869 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3870 3871 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3872 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3873 /* We rcvd a rscn after issuing this 3874 * mbox reg login, we may have cycled 3875 * back through the state and be 3876 * back at reg login state so this 3877 * mbox needs to be ignored becase 3878 * there is another reg login in 3879 * process. 3880 */ 3881 spin_lock_irq(&ndlp->lock); 3882 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3883 spin_unlock_irq(&ndlp->lock); 3884 3885 /* 3886 * We cannot leave the RPI registered because 3887 * if we go thru discovery again for this ndlp 3888 * a subsequent REG_RPI will fail. 3889 */ 3890 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3891 lpfc_unreg_rpi(vport, ndlp); 3892 } 3893 3894 /* Call state machine */ 3895 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3896 pmb->ctx_buf = mp; 3897 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3898 3899 /* decrement the node reference count held for this callback 3900 * function. 3901 */ 3902 lpfc_nlp_put(ndlp); 3903 3904 return; 3905} 3906 3907static void 3908lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3909{ 3910 MAILBOX_t *mb = &pmb->u.mb; 3911 struct lpfc_vport *vport = pmb->vport; 3912 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3913 3914 switch (mb->mbxStatus) { 3915 case 0x0011: 3916 case 0x0020: 3917 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3918 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3919 mb->mbxStatus); 3920 break; 3921 /* If VPI is busy, reset the HBA */ 3922 case 0x9700: 3923 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3924 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3925 vport->vpi, mb->mbxStatus); 3926 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) 3927 lpfc_workq_post_event(phba, NULL, NULL, 3928 LPFC_EVT_RESET_HBA); 3929 } 3930 3931 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 3932 spin_lock_irq(shost->host_lock); 3933 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3934 spin_unlock_irq(shost->host_lock); 3935 mempool_free(pmb, phba->mbox_mem_pool); 3936 lpfc_cleanup_vports_rrqs(vport, NULL); 3937 /* 3938 * This shost reference might have been taken at the beginning of 3939 * lpfc_vport_delete() 3940 */ 3941 if (test_bit(FC_UNLOADING, &vport->load_flag) && vport != phba->pport) 3942 scsi_host_put(shost); 3943} 3944 3945int 3946lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3947{ 3948 struct lpfc_hba *phba = vport->phba; 3949 LPFC_MBOXQ_t *mbox; 3950 int rc; 3951 3952 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3953 if (!mbox) 3954 return 1; 3955 3956 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3957 mbox->vport = vport; 3958 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3959 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3960 if (rc == MBX_NOT_FINISHED) { 3961 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3962 "1800 Could not issue unreg_vpi\n"); 3963 mempool_free(mbox, phba->mbox_mem_pool); 3964 return rc; 3965 } 3966 return 0; 3967} 3968 3969static void 3970lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3971{ 3972 struct lpfc_vport *vport = pmb->vport; 3973 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3974 MAILBOX_t *mb = &pmb->u.mb; 3975 3976 switch (mb->mbxStatus) { 3977 case 0x0011: 3978 case 0x9601: 3979 case 0x9602: 3980 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3981 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3982 mb->mbxStatus); 3983 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3984 clear_bit(FC_FABRIC, &vport->fc_flag); 3985 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); 3986 vport->fc_myDID = 0; 3987 3988 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3989 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3990 if (phba->nvmet_support) 3991 lpfc_nvmet_update_targetport(phba); 3992 else 3993 lpfc_nvme_update_localport(vport); 3994 } 3995 goto out; 3996 } 3997 3998 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); 3999 spin_lock_irq(shost->host_lock); 4000 vport->vpi_state |= LPFC_VPI_REGISTERED; 4001 spin_unlock_irq(shost->host_lock); 4002 vport->num_disc_nodes = 0; 4003 /* go thru NPR list and issue ELS PLOGIs */ 4004 if (atomic_read(&vport->fc_npr_cnt)) 4005 lpfc_els_disc_plogi(vport); 4006 4007 if (!vport->num_disc_nodes) { 4008 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 4009 lpfc_can_disctmo(vport); 4010 } 4011 vport->port_state = LPFC_VPORT_READY; 4012 4013out: 4014 mempool_free(pmb, phba->mbox_mem_pool); 4015 return; 4016} 4017 4018/** 4019 * lpfc_create_static_vport - Read HBA config region to create static vports. 4020 * @phba: pointer to lpfc hba data structure. 4021 * 4022 * This routine issue a DUMP mailbox command for config region 22 to get 4023 * the list of static vports to be created. The function create vports 4024 * based on the information returned from the HBA. 4025 **/ 4026void 4027lpfc_create_static_vport(struct lpfc_hba *phba) 4028{ 4029 LPFC_MBOXQ_t *pmb = NULL; 4030 MAILBOX_t *mb; 4031 struct static_vport_info *vport_info; 4032 int mbx_wait_rc = 0, i; 4033 struct fc_vport_identifiers vport_id; 4034 struct fc_vport *new_fc_vport; 4035 struct Scsi_Host *shost; 4036 struct lpfc_vport *vport; 4037 uint16_t offset = 0; 4038 uint8_t *vport_buff; 4039 struct lpfc_dmabuf *mp; 4040 uint32_t byte_count = 0; 4041 4042 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4043 if (!pmb) { 4044 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4045 "0542 lpfc_create_static_vport failed to" 4046 " allocate mailbox memory\n"); 4047 return; 4048 } 4049 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 4050 mb = &pmb->u.mb; 4051 4052 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 4053 if (!vport_info) { 4054 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4055 "0543 lpfc_create_static_vport failed to" 4056 " allocate vport_info\n"); 4057 mempool_free(pmb, phba->mbox_mem_pool); 4058 return; 4059 } 4060 4061 vport_buff = (uint8_t *) vport_info; 4062 do { 4063 /* While loop iteration forces a free dma buffer from 4064 * the previous loop because the mbox is reused and 4065 * the dump routine is a single-use construct. 4066 */ 4067 if (pmb->ctx_buf) { 4068 mp = pmb->ctx_buf; 4069 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4070 kfree(mp); 4071 pmb->ctx_buf = NULL; 4072 } 4073 if (lpfc_dump_static_vport(phba, pmb, offset)) 4074 goto out; 4075 4076 pmb->vport = phba->pport; 4077 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 4078 LPFC_MBOX_TMO); 4079 4080 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 4081 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4082 "0544 lpfc_create_static_vport failed to" 4083 " issue dump mailbox command ret 0x%x " 4084 "status 0x%x\n", 4085 mbx_wait_rc, mb->mbxStatus); 4086 goto out; 4087 } 4088 4089 if (phba->sli_rev == LPFC_SLI_REV4) { 4090 byte_count = pmb->u.mqe.un.mb_words[5]; 4091 mp = pmb->ctx_buf; 4092 if (byte_count > sizeof(struct static_vport_info) - 4093 offset) 4094 byte_count = sizeof(struct static_vport_info) 4095 - offset; 4096 memcpy(vport_buff + offset, mp->virt, byte_count); 4097 offset += byte_count; 4098 } else { 4099 if (mb->un.varDmp.word_cnt > 4100 sizeof(struct static_vport_info) - offset) 4101 mb->un.varDmp.word_cnt = 4102 sizeof(struct static_vport_info) 4103 - offset; 4104 byte_count = mb->un.varDmp.word_cnt; 4105 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 4106 vport_buff + offset, 4107 byte_count); 4108 4109 offset += byte_count; 4110 } 4111 4112 } while (byte_count && 4113 offset < sizeof(struct static_vport_info)); 4114 4115 4116 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 4117 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 4118 != VPORT_INFO_REV)) { 4119 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4120 "0545 lpfc_create_static_vport bad" 4121 " information header 0x%x 0x%x\n", 4122 le32_to_cpu(vport_info->signature), 4123 le32_to_cpu(vport_info->rev) & 4124 VPORT_INFO_REV_MASK); 4125 4126 goto out; 4127 } 4128 4129 shost = lpfc_shost_from_vport(phba->pport); 4130 4131 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 4132 memset(&vport_id, 0, sizeof(vport_id)); 4133 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 4134 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 4135 if (!vport_id.port_name || !vport_id.node_name) 4136 continue; 4137 4138 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 4139 vport_id.vport_type = FC_PORTTYPE_NPIV; 4140 vport_id.disable = false; 4141 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 4142 4143 if (!new_fc_vport) { 4144 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4145 "0546 lpfc_create_static_vport failed to" 4146 " create vport\n"); 4147 continue; 4148 } 4149 4150 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 4151 vport->vport_flag |= STATIC_VPORT; 4152 } 4153 4154out: 4155 kfree(vport_info); 4156 if (mbx_wait_rc != MBX_TIMEOUT) 4157 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4158} 4159 4160/* 4161 * This routine handles processing a Fabric REG_LOGIN mailbox 4162 * command upon completion. It is setup in the LPFC_MBOXQ 4163 * as the completion routine when the command is 4164 * handed off to the SLI layer. 4165 */ 4166void 4167lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4168{ 4169 struct lpfc_vport *vport = pmb->vport; 4170 MAILBOX_t *mb = &pmb->u.mb; 4171 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 4172 4173 pmb->ctx_ndlp = NULL; 4174 4175 if (mb->mbxStatus) { 4176 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4177 "0258 Register Fabric login error: 0x%x\n", 4178 mb->mbxStatus); 4179 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4180 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4181 /* FLOGI failed, use loop map to make discovery list */ 4182 lpfc_disc_list_loopmap(vport); 4183 4184 /* Start discovery */ 4185 lpfc_disc_start(vport); 4186 /* Decrement the reference count to ndlp after the 4187 * reference to the ndlp are done. 4188 */ 4189 lpfc_nlp_put(ndlp); 4190 return; 4191 } 4192 4193 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4194 /* Decrement the reference count to ndlp after the reference 4195 * to the ndlp are done. 4196 */ 4197 lpfc_nlp_put(ndlp); 4198 return; 4199 } 4200 4201 if (phba->sli_rev < LPFC_SLI_REV4) 4202 ndlp->nlp_rpi = mb->un.varWords[0]; 4203 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4204 ndlp->nlp_type |= NLP_FABRIC; 4205 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4206 4207 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 4208 /* when physical port receive logo donot start 4209 * vport discovery */ 4210 if (!test_and_clear_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag)) 4211 lpfc_start_fdiscs(phba); 4212 lpfc_do_scr_ns_plogi(phba, vport); 4213 } 4214 4215 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4216 4217 /* Drop the reference count from the mbox at the end after 4218 * all the current reference to the ndlp have been done. 4219 */ 4220 lpfc_nlp_put(ndlp); 4221 return; 4222} 4223 4224 /* 4225 * This routine will issue a GID_FT for each FC4 Type supported 4226 * by the driver. ALL GID_FTs must complete before discovery is started. 4227 */ 4228int 4229lpfc_issue_gidft(struct lpfc_vport *vport) 4230{ 4231 /* Good status, issue CT Request to NameServer */ 4232 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4233 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 4234 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 4235 /* Cannot issue NameServer FCP Query, so finish up 4236 * discovery 4237 */ 4238 lpfc_printf_vlog(vport, KERN_ERR, 4239 LOG_TRACE_EVENT, 4240 "0604 %s FC TYPE %x %s\n", 4241 "Failed to issue GID_FT to ", 4242 FC_TYPE_FCP, 4243 "Finishing discovery."); 4244 return 0; 4245 } 4246 vport->gidft_inp++; 4247 } 4248 4249 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4250 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 4251 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 4252 /* Cannot issue NameServer NVME Query, so finish up 4253 * discovery 4254 */ 4255 lpfc_printf_vlog(vport, KERN_ERR, 4256 LOG_TRACE_EVENT, 4257 "0605 %s FC_TYPE %x %s %d\n", 4258 "Failed to issue GID_FT to ", 4259 FC_TYPE_NVME, 4260 "Finishing discovery: gidftinp ", 4261 vport->gidft_inp); 4262 if (vport->gidft_inp == 0) 4263 return 0; 4264 } else 4265 vport->gidft_inp++; 4266 } 4267 return vport->gidft_inp; 4268} 4269 4270/** 4271 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 4272 * @vport: The virtual port for which this call is being executed. 4273 * 4274 * This routine will issue a GID_PT to get a list of all N_Ports 4275 * 4276 * Return value : 4277 * 0 - Failure to issue a GID_PT 4278 * 1 - GID_PT issued 4279 **/ 4280int 4281lpfc_issue_gidpt(struct lpfc_vport *vport) 4282{ 4283 /* Good status, issue CT Request to NameServer */ 4284 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4285 /* Cannot issue NameServer FCP Query, so finish up 4286 * discovery 4287 */ 4288 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4289 "0606 %s Port TYPE %x %s\n", 4290 "Failed to issue GID_PT to ", 4291 GID_PT_N_PORT, 4292 "Finishing discovery."); 4293 return 0; 4294 } 4295 vport->gidft_inp++; 4296 return 1; 4297} 4298 4299/* 4300 * This routine handles processing a NameServer REG_LOGIN mailbox 4301 * command upon completion. It is setup in the LPFC_MBOXQ 4302 * as the completion routine when the command is 4303 * handed off to the SLI layer. 4304 */ 4305void 4306lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4307{ 4308 MAILBOX_t *mb = &pmb->u.mb; 4309 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 4310 struct lpfc_vport *vport = pmb->vport; 4311 int rc; 4312 4313 pmb->ctx_ndlp = NULL; 4314 vport->gidft_inp = 0; 4315 4316 if (mb->mbxStatus) { 4317 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4318 "0260 Register NameServer error: 0x%x\n", 4319 mb->mbxStatus); 4320 4321out: 4322 /* decrement the node reference count held for this 4323 * callback function. 4324 */ 4325 lpfc_nlp_put(ndlp); 4326 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4327 4328 /* If the node is not registered with the scsi or nvme 4329 * transport, remove the fabric node. The failed reg_login 4330 * is terminal and forces the removal of the last node 4331 * reference. 4332 */ 4333 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 4334 spin_lock_irq(&ndlp->lock); 4335 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 4336 spin_unlock_irq(&ndlp->lock); 4337 lpfc_nlp_put(ndlp); 4338 } 4339 4340 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4341 /* 4342 * RegLogin failed, use loop map to make discovery 4343 * list 4344 */ 4345 lpfc_disc_list_loopmap(vport); 4346 4347 /* Start discovery */ 4348 lpfc_disc_start(vport); 4349 return; 4350 } 4351 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4352 return; 4353 } 4354 4355 if (phba->sli_rev < LPFC_SLI_REV4) 4356 ndlp->nlp_rpi = mb->un.varWords[0]; 4357 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4358 ndlp->nlp_type |= NLP_FABRIC; 4359 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4360 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4361 "0003 rpi:%x DID:%x flg:%x %d x%px\n", 4362 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4363 kref_read(&ndlp->kref), 4364 ndlp); 4365 4366 if (vport->port_state < LPFC_VPORT_READY) { 4367 /* Link up discovery requires Fabric registration. */ 4368 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4369 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4370 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4371 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4372 4373 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4374 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4375 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4376 4377 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4378 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4379 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4380 FC_TYPE_NVME); 4381 4382 /* Issue SCR just before NameServer GID_FT Query */ 4383 lpfc_issue_els_scr(vport, 0); 4384 4385 /* Link was bounced or a Fabric LOGO occurred. Start EDC 4386 * with initial FW values provided the congestion mode is 4387 * not off. Note that signals may or may not be supported 4388 * by the adapter but FPIN is provided by default for 1 4389 * or both missing signals support. 4390 */ 4391 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 4392 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 4393 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 4394 rc = lpfc_issue_els_edc(vport, 0); 4395 lpfc_printf_log(phba, KERN_INFO, 4396 LOG_INIT | LOG_ELS | LOG_DISCOVERY, 4397 "4220 Issue EDC status x%x Data x%x\n", 4398 rc, phba->cgn_init_reg_signal); 4399 } else if (phba->lmt & LMT_64Gb) { 4400 /* may send link fault capability descriptor */ 4401 lpfc_issue_els_edc(vport, 0); 4402 } else { 4403 lpfc_issue_els_rdf(vport, 0); 4404 } 4405 } 4406 4407 vport->fc_ns_retry = 0; 4408 if (lpfc_issue_gidft(vport) == 0) 4409 goto out; 4410 4411 /* 4412 * At this point in time we may need to wait for multiple 4413 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4414 * 4415 * decrement the node reference count held for this 4416 * callback function. 4417 */ 4418 lpfc_nlp_put(ndlp); 4419 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4420 return; 4421} 4422 4423/* 4424 * This routine handles processing a Fabric Controller REG_LOGIN mailbox 4425 * command upon completion. It is setup in the LPFC_MBOXQ 4426 * as the completion routine when the command is handed off to the SLI layer. 4427 */ 4428void 4429lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4430{ 4431 struct lpfc_vport *vport = pmb->vport; 4432 MAILBOX_t *mb = &pmb->u.mb; 4433 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 4434 4435 pmb->ctx_ndlp = NULL; 4436 if (mb->mbxStatus) { 4437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4438 "0933 %s: Register FC login error: 0x%x\n", 4439 __func__, mb->mbxStatus); 4440 goto out; 4441 } 4442 4443 lpfc_check_nlp_post_devloss(vport, ndlp); 4444 4445 if (phba->sli_rev < LPFC_SLI_REV4) 4446 ndlp->nlp_rpi = mb->un.varWords[0]; 4447 4448 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4449 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n", 4450 __func__, ndlp->nlp_DID, ndlp->nlp_rpi, 4451 ndlp->nlp_state); 4452 4453 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4454 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 4455 ndlp->nlp_type |= NLP_FABRIC; 4456 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4457 4458 out: 4459 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4460 4461 /* Drop the reference count from the mbox at the end after 4462 * all the current reference to the ndlp have been done. 4463 */ 4464 lpfc_nlp_put(ndlp); 4465} 4466 4467static void 4468lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4469{ 4470 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4471 struct fc_rport *rport; 4472 struct lpfc_rport_data *rdata; 4473 struct fc_rport_identifiers rport_ids; 4474 struct lpfc_hba *phba = vport->phba; 4475 unsigned long flags; 4476 4477 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4478 return; 4479 4480 /* Remote port has reappeared. Re-register w/ FC transport */ 4481 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4482 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4483 rport_ids.port_id = ndlp->nlp_DID; 4484 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4485 4486 4487 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4488 "rport add: did:x%x flg:x%x type x%x", 4489 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4490 4491 /* Don't add the remote port if unloading. */ 4492 if (test_bit(FC_UNLOADING, &vport->load_flag)) 4493 return; 4494 4495 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4496 if (!rport) { 4497 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4498 "Warning: fc_remote_port_add failed\n"); 4499 return; 4500 } 4501 4502 /* Successful port add. Complete initializing node data */ 4503 rport->maxframe_size = ndlp->nlp_maxframe; 4504 rport->supported_classes = ndlp->nlp_class_sup; 4505 rdata = rport->dd_data; 4506 rdata->pnode = lpfc_nlp_get(ndlp); 4507 if (!rdata->pnode) { 4508 dev_warn(&phba->pcidev->dev, 4509 "Warning - node ref failed. Unreg rport\n"); 4510 fc_remote_port_delete(rport); 4511 ndlp->rport = NULL; 4512 return; 4513 } 4514 4515 spin_lock_irqsave(&ndlp->lock, flags); 4516 ndlp->fc4_xpt_flags |= SCSI_XPT_REGD; 4517 spin_unlock_irqrestore(&ndlp->lock, flags); 4518 4519 if (ndlp->nlp_type & NLP_FCP_TARGET) 4520 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4521 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4522 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4523 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4524 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4525 if (ndlp->nlp_type & NLP_NVME_TARGET) 4526 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4527 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4528 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4529 4530 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4531 fc_remote_port_rolechg(rport, rport_ids.roles); 4532 4533 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4534 "3183 %s rport x%px DID x%x, role x%x refcnt %d\n", 4535 __func__, rport, rport->port_id, rport->roles, 4536 kref_read(&ndlp->kref)); 4537 4538 if ((rport->scsi_target_id != -1) && 4539 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4540 ndlp->nlp_sid = rport->scsi_target_id; 4541 } 4542 4543 return; 4544} 4545 4546static void 4547lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4548{ 4549 struct fc_rport *rport = ndlp->rport; 4550 struct lpfc_vport *vport = ndlp->vport; 4551 4552 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4553 return; 4554 4555 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4556 "rport delete: did:x%x flg:x%x type x%x", 4557 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4558 4559 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4560 "3184 rport unregister x%06x, rport x%px " 4561 "xptflg x%x refcnt %d\n", 4562 ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags, 4563 kref_read(&ndlp->kref)); 4564 4565 fc_remote_port_delete(rport); 4566 lpfc_nlp_put(ndlp); 4567} 4568 4569static void 4570lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4571{ 4572 switch (state) { 4573 case NLP_STE_UNUSED_NODE: 4574 atomic_add(count, &vport->fc_unused_cnt); 4575 break; 4576 case NLP_STE_PLOGI_ISSUE: 4577 atomic_add(count, &vport->fc_plogi_cnt); 4578 break; 4579 case NLP_STE_ADISC_ISSUE: 4580 atomic_add(count, &vport->fc_adisc_cnt); 4581 break; 4582 case NLP_STE_REG_LOGIN_ISSUE: 4583 atomic_add(count, &vport->fc_reglogin_cnt); 4584 break; 4585 case NLP_STE_PRLI_ISSUE: 4586 atomic_add(count, &vport->fc_prli_cnt); 4587 break; 4588 case NLP_STE_UNMAPPED_NODE: 4589 atomic_add(count, &vport->fc_unmap_cnt); 4590 break; 4591 case NLP_STE_MAPPED_NODE: 4592 atomic_add(count, &vport->fc_map_cnt); 4593 break; 4594 case NLP_STE_NPR_NODE: 4595 if (!atomic_read(&vport->fc_npr_cnt) && count == -1) 4596 atomic_set(&vport->fc_npr_cnt, 0); 4597 else 4598 atomic_add(count, &vport->fc_npr_cnt); 4599 break; 4600 } 4601} 4602 4603/* Register a node with backend if not already done */ 4604void 4605lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4606{ 4607 unsigned long iflags; 4608 4609 lpfc_check_nlp_post_devloss(vport, ndlp); 4610 4611 spin_lock_irqsave(&ndlp->lock, iflags); 4612 if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) { 4613 /* Already registered with backend, trigger rescan */ 4614 spin_unlock_irqrestore(&ndlp->lock, iflags); 4615 4616 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD && 4617 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) { 4618 lpfc_nvme_rescan_port(vport, ndlp); 4619 } 4620 return; 4621 } 4622 4623 ndlp->fc4_xpt_flags |= NLP_XPT_REGD; 4624 spin_unlock_irqrestore(&ndlp->lock, iflags); 4625 4626 if (lpfc_valid_xpt_node(ndlp)) { 4627 vport->phba->nport_event_cnt++; 4628 /* 4629 * Tell the fc transport about the port, if we haven't 4630 * already. If we have, and it's a scsi entity, be 4631 */ 4632 lpfc_register_remote_port(vport, ndlp); 4633 } 4634 4635 /* We are done if we do not have any NVME remote node */ 4636 if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME)) 4637 return; 4638 4639 /* Notify the NVME transport of this new rport. */ 4640 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4641 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4642 if (vport->phba->nvmet_support == 0) { 4643 /* Register this rport with the transport. 4644 * Only NVME Target Rports are registered with 4645 * the transport. 4646 */ 4647 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4648 vport->phba->nport_event_cnt++; 4649 lpfc_nvme_register_port(vport, ndlp); 4650 } 4651 } else { 4652 /* Just take an NDLP ref count since the 4653 * target does not register rports. 4654 */ 4655 lpfc_nlp_get(ndlp); 4656 } 4657 } 4658} 4659 4660/* Unregister a node with backend if not already done */ 4661void 4662lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4663{ 4664 unsigned long iflags; 4665 4666 spin_lock_irqsave(&ndlp->lock, iflags); 4667 if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) { 4668 spin_unlock_irqrestore(&ndlp->lock, iflags); 4669 lpfc_printf_vlog(vport, KERN_INFO, 4670 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 4671 "0999 %s Not regd: ndlp x%px rport x%px DID " 4672 "x%x FLG x%x XPT x%x\n", 4673 __func__, ndlp, ndlp->rport, ndlp->nlp_DID, 4674 ndlp->nlp_flag, ndlp->fc4_xpt_flags); 4675 return; 4676 } 4677 4678 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; 4679 spin_unlock_irqrestore(&ndlp->lock, iflags); 4680 4681 if (ndlp->rport && 4682 ndlp->fc4_xpt_flags & SCSI_XPT_REGD) { 4683 vport->phba->nport_event_cnt++; 4684 lpfc_unregister_remote_port(ndlp); 4685 } else if (!ndlp->rport) { 4686 lpfc_printf_vlog(vport, KERN_INFO, 4687 LOG_ELS | LOG_NODE | LOG_DISCOVERY, 4688 "1999 %s NDLP in devloss x%px DID x%x FLG x%x" 4689 " XPT x%x refcnt %u\n", 4690 __func__, ndlp, ndlp->nlp_DID, ndlp->nlp_flag, 4691 ndlp->fc4_xpt_flags, 4692 kref_read(&ndlp->kref)); 4693 } 4694 4695 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) { 4696 vport->phba->nport_event_cnt++; 4697 if (vport->phba->nvmet_support == 0) { 4698 /* Start devloss if target. */ 4699 if (ndlp->nlp_type & NLP_NVME_TARGET) 4700 lpfc_nvme_unregister_port(vport, ndlp); 4701 } else { 4702 /* NVMET has no upcall. */ 4703 lpfc_nlp_put(ndlp); 4704 } 4705 } 4706 4707} 4708 4709/* 4710 * Adisc state change handling 4711 */ 4712static void 4713lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4714 int new_state) 4715{ 4716 switch (new_state) { 4717 /* 4718 * Any state to ADISC_ISSUE 4719 * Do nothing, adisc cmpl handling will trigger state changes 4720 */ 4721 case NLP_STE_ADISC_ISSUE: 4722 break; 4723 4724 /* 4725 * ADISC_ISSUE to mapped states 4726 * Trigger a registration with backend, it will be nop if 4727 * already registered 4728 */ 4729 case NLP_STE_UNMAPPED_NODE: 4730 ndlp->nlp_type |= NLP_FC_NODE; 4731 fallthrough; 4732 case NLP_STE_MAPPED_NODE: 4733 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4734 lpfc_nlp_reg_node(vport, ndlp); 4735 break; 4736 4737 /* 4738 * ADISC_ISSUE to non-mapped states 4739 * We are moving from ADISC_ISSUE to a non-mapped state because 4740 * ADISC failed, we would have skipped unregistering with 4741 * backend, attempt it now 4742 */ 4743 case NLP_STE_NPR_NODE: 4744 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4745 fallthrough; 4746 default: 4747 lpfc_nlp_unreg_node(vport, ndlp); 4748 break; 4749 } 4750 4751} 4752 4753static void 4754lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4755 int old_state, int new_state) 4756{ 4757 /* Trap ADISC changes here */ 4758 if (new_state == NLP_STE_ADISC_ISSUE || 4759 old_state == NLP_STE_ADISC_ISSUE) { 4760 lpfc_handle_adisc_state(vport, ndlp, new_state); 4761 return; 4762 } 4763 4764 if (new_state == NLP_STE_UNMAPPED_NODE) { 4765 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4766 ndlp->nlp_type |= NLP_FC_NODE; 4767 } 4768 if (new_state == NLP_STE_MAPPED_NODE) 4769 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4770 if (new_state == NLP_STE_NPR_NODE) 4771 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4772 4773 /* Reg/Unreg for FCP and NVME Transport interface */ 4774 if ((old_state == NLP_STE_MAPPED_NODE || 4775 old_state == NLP_STE_UNMAPPED_NODE)) { 4776 /* For nodes marked for ADISC, Handle unreg in ADISC cmpl 4777 * if linkup. In linkdown do unreg_node 4778 */ 4779 if (!(ndlp->nlp_flag & NLP_NPR_ADISC) || 4780 !lpfc_is_link_up(vport->phba)) 4781 lpfc_nlp_unreg_node(vport, ndlp); 4782 } 4783 4784 if (new_state == NLP_STE_MAPPED_NODE || 4785 new_state == NLP_STE_UNMAPPED_NODE) 4786 lpfc_nlp_reg_node(vport, ndlp); 4787 4788 /* 4789 * If the node just added to Mapped list was an FCP target, 4790 * but the remote port registration failed or assigned a target 4791 * id outside the presentable range - move the node to the 4792 * Unmapped List. 4793 */ 4794 if ((new_state == NLP_STE_MAPPED_NODE) && 4795 (ndlp->nlp_type & NLP_FCP_TARGET) && 4796 (!ndlp->rport || 4797 ndlp->rport->scsi_target_id == -1 || 4798 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4799 spin_lock_irq(&ndlp->lock); 4800 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4801 spin_unlock_irq(&ndlp->lock); 4802 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4803 } 4804} 4805 4806static char * 4807lpfc_nlp_state_name(char *buffer, size_t size, int state) 4808{ 4809 static char *states[] = { 4810 [NLP_STE_UNUSED_NODE] = "UNUSED", 4811 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4812 [NLP_STE_ADISC_ISSUE] = "ADISC", 4813 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4814 [NLP_STE_PRLI_ISSUE] = "PRLI", 4815 [NLP_STE_LOGO_ISSUE] = "LOGO", 4816 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4817 [NLP_STE_MAPPED_NODE] = "MAPPED", 4818 [NLP_STE_NPR_NODE] = "NPR", 4819 }; 4820 4821 if (state < NLP_STE_MAX_STATE && states[state]) 4822 strscpy(buffer, states[state], size); 4823 else 4824 snprintf(buffer, size, "unknown (%d)", state); 4825 return buffer; 4826} 4827 4828void 4829lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4830 int state) 4831{ 4832 int old_state = ndlp->nlp_state; 4833 int node_dropped = ndlp->nlp_flag & NLP_DROPPED; 4834 char name1[16], name2[16]; 4835 unsigned long iflags; 4836 4837 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4838 "0904 NPort state transition x%06x, %s -> %s\n", 4839 ndlp->nlp_DID, 4840 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4841 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4842 4843 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4844 "node statechg did:x%x old:%d ste:%d", 4845 ndlp->nlp_DID, old_state, state); 4846 4847 if (node_dropped && old_state == NLP_STE_UNUSED_NODE && 4848 state != NLP_STE_UNUSED_NODE) { 4849 ndlp->nlp_flag &= ~NLP_DROPPED; 4850 lpfc_nlp_get(ndlp); 4851 } 4852 4853 if (old_state == NLP_STE_NPR_NODE && 4854 state != NLP_STE_NPR_NODE) 4855 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4856 if (old_state == NLP_STE_UNMAPPED_NODE) { 4857 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4858 ndlp->nlp_type &= ~NLP_FC_NODE; 4859 } 4860 4861 if (list_empty(&ndlp->nlp_listp)) { 4862 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 4863 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4864 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 4865 } else if (old_state) 4866 lpfc_nlp_counters(vport, old_state, -1); 4867 4868 ndlp->nlp_state = state; 4869 lpfc_nlp_counters(vport, state, 1); 4870 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4871} 4872 4873void 4874lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4875{ 4876 unsigned long iflags; 4877 4878 if (list_empty(&ndlp->nlp_listp)) { 4879 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 4880 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4881 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 4882 } 4883} 4884 4885void 4886lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4887{ 4888 unsigned long iflags; 4889 4890 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4891 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4892 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4893 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 4894 list_del_init(&ndlp->nlp_listp); 4895 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 4896 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4897 NLP_STE_UNUSED_NODE); 4898} 4899 4900/** 4901 * lpfc_initialize_node - Initialize all fields of node object 4902 * @vport: Pointer to Virtual Port object. 4903 * @ndlp: Pointer to FC node object. 4904 * @did: FC_ID of the node. 4905 * 4906 * This function is always called when node object need to be initialized. 4907 * It initializes all the fields of the node object. Although the reference 4908 * to phba from @ndlp can be obtained indirectly through it's reference to 4909 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4910 * to the life-span of the @ndlp might go beyond the existence of @vport as 4911 * the final release of ndlp is determined by its reference count. And, the 4912 * operation on @ndlp needs the reference to phba. 4913 **/ 4914static inline void 4915lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4916 uint32_t did) 4917{ 4918 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4919 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4920 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4921 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp); 4922 4923 ndlp->nlp_DID = did; 4924 ndlp->vport = vport; 4925 ndlp->phba = vport->phba; 4926 ndlp->nlp_sid = NLP_NO_SID; 4927 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4928 kref_init(&ndlp->kref); 4929 atomic_set(&ndlp->cmd_pending, 0); 4930 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4931 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4932} 4933 4934void 4935lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4936{ 4937 /* 4938 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4939 * be used when lpfc wants to remove the "last" lpfc_nlp_put() to 4940 * release the ndlp from the vport when conditions are correct. 4941 */ 4942 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4943 return; 4944 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4945 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4946 lpfc_cleanup_vports_rrqs(vport, ndlp); 4947 lpfc_unreg_rpi(vport, ndlp); 4948 } 4949 4950 /* NLP_DROPPED means another thread already removed the initial 4951 * reference from lpfc_nlp_init. If set, don't drop it again and 4952 * introduce an imbalance. 4953 */ 4954 spin_lock_irq(&ndlp->lock); 4955 if (!(ndlp->nlp_flag & NLP_DROPPED)) { 4956 ndlp->nlp_flag |= NLP_DROPPED; 4957 spin_unlock_irq(&ndlp->lock); 4958 lpfc_nlp_put(ndlp); 4959 return; 4960 } 4961 spin_unlock_irq(&ndlp->lock); 4962} 4963 4964/* 4965 * Start / ReStart rescue timer for Discovery / RSCN handling 4966 */ 4967void 4968lpfc_set_disctmo(struct lpfc_vport *vport) 4969{ 4970 struct lpfc_hba *phba = vport->phba; 4971 uint32_t tmo; 4972 4973 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4974 /* For FAN, timeout should be greater than edtov */ 4975 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4976 } else { 4977 /* Normal discovery timeout should be > than ELS/CT timeout 4978 * FC spec states we need 3 * ratov for CT requests 4979 */ 4980 tmo = ((phba->fc_ratov * 3) + 3); 4981 } 4982 4983 4984 if (!timer_pending(&vport->fc_disctmo)) { 4985 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4986 "set disc timer: tmo:x%x state:x%x flg:x%x", 4987 tmo, vport->port_state, vport->fc_flag); 4988 } 4989 4990 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4991 set_bit(FC_DISC_TMO, &vport->fc_flag); 4992 4993 /* Start Discovery Timer state <hba_state> */ 4994 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4995 "0247 Start Discovery Timer state x%x " 4996 "Data: x%x x%lx x%x x%x\n", 4997 vport->port_state, tmo, 4998 (unsigned long)&vport->fc_disctmo, 4999 atomic_read(&vport->fc_plogi_cnt), 5000 atomic_read(&vport->fc_adisc_cnt)); 5001 5002 return; 5003} 5004 5005/* 5006 * Cancel rescue timer for Discovery / RSCN handling 5007 */ 5008int 5009lpfc_can_disctmo(struct lpfc_vport *vport) 5010{ 5011 unsigned long iflags; 5012 5013 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5014 "can disc timer: state:x%x rtry:x%x flg:x%x", 5015 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5016 5017 /* Turn off discovery timer if its running */ 5018 if (test_bit(FC_DISC_TMO, &vport->fc_flag) || 5019 timer_pending(&vport->fc_disctmo)) { 5020 clear_bit(FC_DISC_TMO, &vport->fc_flag); 5021 del_timer_sync(&vport->fc_disctmo); 5022 spin_lock_irqsave(&vport->work_port_lock, iflags); 5023 vport->work_port_events &= ~WORKER_DISC_TMO; 5024 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 5025 } 5026 5027 /* Cancel Discovery Timer state <hba_state> */ 5028 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5029 "0248 Cancel Discovery Timer state x%x " 5030 "Data: x%lx x%x x%x\n", 5031 vport->port_state, vport->fc_flag, 5032 atomic_read(&vport->fc_plogi_cnt), 5033 atomic_read(&vport->fc_adisc_cnt)); 5034 return 0; 5035} 5036 5037/* 5038 * Check specified ring for outstanding IOCB on the SLI queue 5039 * Return true if iocb matches the specified nport 5040 */ 5041int 5042lpfc_check_sli_ndlp(struct lpfc_hba *phba, 5043 struct lpfc_sli_ring *pring, 5044 struct lpfc_iocbq *iocb, 5045 struct lpfc_nodelist *ndlp) 5046{ 5047 struct lpfc_vport *vport = ndlp->vport; 5048 u8 ulp_command; 5049 u16 ulp_context; 5050 u32 remote_id; 5051 5052 if (iocb->vport != vport) 5053 return 0; 5054 5055 ulp_command = get_job_cmnd(phba, iocb); 5056 ulp_context = get_job_ulpcontext(phba, iocb); 5057 remote_id = get_job_els_rsp64_did(phba, iocb); 5058 5059 if (pring->ringno == LPFC_ELS_RING) { 5060 switch (ulp_command) { 5061 case CMD_GEN_REQUEST64_CR: 5062 if (iocb->ndlp == ndlp) 5063 return 1; 5064 fallthrough; 5065 case CMD_ELS_REQUEST64_CR: 5066 if (remote_id == ndlp->nlp_DID) 5067 return 1; 5068 fallthrough; 5069 case CMD_XMIT_ELS_RSP64_CX: 5070 if (iocb->ndlp == ndlp) 5071 return 1; 5072 } 5073 } else if (pring->ringno == LPFC_FCP_RING) { 5074 /* Skip match check if waiting to relogin to FCP target */ 5075 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 5076 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 5077 return 0; 5078 } 5079 if (ulp_context == ndlp->nlp_rpi) 5080 return 1; 5081 } 5082 return 0; 5083} 5084 5085static void 5086__lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 5087 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 5088 struct list_head *dequeue_list) 5089{ 5090 struct lpfc_iocbq *iocb, *next_iocb; 5091 5092 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5093 /* Check to see if iocb matches the nport */ 5094 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 5095 /* match, dequeue */ 5096 list_move_tail(&iocb->list, dequeue_list); 5097 } 5098} 5099 5100static void 5101lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 5102 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5103{ 5104 struct lpfc_sli *psli = &phba->sli; 5105 uint32_t i; 5106 5107 spin_lock_irq(&phba->hbalock); 5108 for (i = 0; i < psli->num_rings; i++) 5109 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 5110 dequeue_list); 5111 spin_unlock_irq(&phba->hbalock); 5112} 5113 5114static void 5115lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 5116 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5117{ 5118 struct lpfc_sli_ring *pring; 5119 struct lpfc_queue *qp = NULL; 5120 5121 spin_lock_irq(&phba->hbalock); 5122 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 5123 pring = qp->pring; 5124 if (!pring) 5125 continue; 5126 spin_lock(&pring->ring_lock); 5127 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 5128 spin_unlock(&pring->ring_lock); 5129 } 5130 spin_unlock_irq(&phba->hbalock); 5131} 5132 5133/* 5134 * Free resources / clean up outstanding I/Os 5135 * associated with nlp_rpi in the LPFC_NODELIST entry. 5136 */ 5137static int 5138lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5139{ 5140 LIST_HEAD(completions); 5141 5142 lpfc_fabric_abort_nport(ndlp); 5143 5144 /* 5145 * Everything that matches on txcmplq will be returned 5146 * by firmware with a no rpi error. 5147 */ 5148 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5149 if (phba->sli_rev != LPFC_SLI_REV4) 5150 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 5151 else 5152 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 5153 } 5154 5155 /* Cancel all the IOCBs from the completions list */ 5156 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5157 IOERR_SLI_ABORTED); 5158 5159 return 0; 5160} 5161 5162/** 5163 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 5164 * @phba: Pointer to HBA context object. 5165 * @pmb: Pointer to mailbox object. 5166 * 5167 * This function will issue an ELS LOGO command after completing 5168 * the UNREG_RPI. 5169 **/ 5170static void 5171lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5172{ 5173 struct lpfc_vport *vport = pmb->vport; 5174 struct lpfc_nodelist *ndlp; 5175 5176 ndlp = pmb->ctx_ndlp; 5177 if (!ndlp) 5178 return; 5179 lpfc_issue_els_logo(vport, ndlp, 0); 5180 5181 /* Check to see if there are any deferred events to process */ 5182 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 5183 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 5184 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5185 "1434 UNREG cmpl deferred logo x%x " 5186 "on NPort x%x Data: x%x x%px\n", 5187 ndlp->nlp_rpi, ndlp->nlp_DID, 5188 ndlp->nlp_defer_did, ndlp); 5189 5190 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5191 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 5192 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 5193 } else { 5194 /* NLP_RELEASE_RPI is only set for SLI4 ports. */ 5195 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 5196 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 5197 spin_lock_irq(&ndlp->lock); 5198 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5199 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5200 spin_unlock_irq(&ndlp->lock); 5201 } 5202 spin_lock_irq(&ndlp->lock); 5203 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5204 spin_unlock_irq(&ndlp->lock); 5205 } 5206 5207 /* The node has an outstanding reference for the unreg. Now 5208 * that the LOGO action and cleanup are finished, release 5209 * resources. 5210 */ 5211 lpfc_nlp_put(ndlp); 5212 mempool_free(pmb, phba->mbox_mem_pool); 5213} 5214 5215/* 5216 * Sets the mailbox completion handler to be used for the 5217 * unreg_rpi command. The handler varies based on the state of 5218 * the port and what will be happening to the rpi next. 5219 */ 5220static void 5221lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 5222 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 5223{ 5224 unsigned long iflags; 5225 5226 /* Driver always gets a reference on the mailbox job 5227 * in support of async jobs. 5228 */ 5229 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5230 if (!mbox->ctx_ndlp) 5231 return; 5232 5233 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 5234 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 5235 5236 } else if (phba->sli_rev == LPFC_SLI_REV4 && 5237 !test_bit(FC_UNLOADING, &vport->load_flag) && 5238 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 5239 LPFC_SLI_INTF_IF_TYPE_2) && 5240 (kref_read(&ndlp->kref) > 0)) { 5241 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 5242 } else { 5243 if (test_bit(FC_UNLOADING, &vport->load_flag)) { 5244 if (phba->sli_rev == LPFC_SLI_REV4) { 5245 spin_lock_irqsave(&ndlp->lock, iflags); 5246 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5247 spin_unlock_irqrestore(&ndlp->lock, iflags); 5248 } 5249 } 5250 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5251 } 5252} 5253 5254/* 5255 * Free rpi associated with LPFC_NODELIST entry. 5256 * This routine is called from lpfc_freenode(), when we are removing 5257 * a LPFC_NODELIST entry. It is also called if the driver initiates a 5258 * LOGO that completes successfully, and we are waiting to PLOGI back 5259 * to the remote NPort. In addition, it is called after we receive 5260 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 5261 * we are waiting to PLOGI back to the remote NPort. 5262 */ 5263int 5264lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5265{ 5266 struct lpfc_hba *phba = vport->phba; 5267 LPFC_MBOXQ_t *mbox; 5268 int rc, acc_plogi = 1; 5269 uint16_t rpi; 5270 5271 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 5272 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 5273 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 5274 lpfc_printf_vlog(vport, KERN_INFO, 5275 LOG_NODE | LOG_DISCOVERY, 5276 "3366 RPI x%x needs to be " 5277 "unregistered nlp_flag x%x " 5278 "did x%x\n", 5279 ndlp->nlp_rpi, ndlp->nlp_flag, 5280 ndlp->nlp_DID); 5281 5282 /* If there is already an UNREG in progress for this ndlp, 5283 * no need to queue up another one. 5284 */ 5285 if (ndlp->nlp_flag & NLP_UNREG_INP) { 5286 lpfc_printf_vlog(vport, KERN_INFO, 5287 LOG_NODE | LOG_DISCOVERY, 5288 "1436 unreg_rpi SKIP UNREG x%x on " 5289 "NPort x%x deferred x%x flg x%x " 5290 "Data: x%px\n", 5291 ndlp->nlp_rpi, ndlp->nlp_DID, 5292 ndlp->nlp_defer_did, 5293 ndlp->nlp_flag, ndlp); 5294 goto out; 5295 } 5296 5297 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5298 if (mbox) { 5299 /* SLI4 ports require the physical rpi value. */ 5300 rpi = ndlp->nlp_rpi; 5301 if (phba->sli_rev == LPFC_SLI_REV4) 5302 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 5303 5304 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 5305 mbox->vport = vport; 5306 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 5307 if (!mbox->ctx_ndlp) { 5308 mempool_free(mbox, phba->mbox_mem_pool); 5309 return 1; 5310 } 5311 5312 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 5313 /* 5314 * accept PLOGIs after unreg_rpi_cmpl 5315 */ 5316 acc_plogi = 0; 5317 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 5318 Fabric_DID_MASK) && 5319 (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))) 5320 ndlp->nlp_flag |= NLP_UNREG_INP; 5321 5322 lpfc_printf_vlog(vport, KERN_INFO, 5323 LOG_NODE | LOG_DISCOVERY, 5324 "1433 unreg_rpi UNREG x%x on " 5325 "NPort x%x deferred flg x%x " 5326 "Data:x%px\n", 5327 ndlp->nlp_rpi, ndlp->nlp_DID, 5328 ndlp->nlp_flag, ndlp); 5329 5330 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5331 if (rc == MBX_NOT_FINISHED) { 5332 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5333 mempool_free(mbox, phba->mbox_mem_pool); 5334 acc_plogi = 1; 5335 lpfc_nlp_put(ndlp); 5336 } 5337 } else { 5338 lpfc_printf_vlog(vport, KERN_INFO, 5339 LOG_NODE | LOG_DISCOVERY, 5340 "1444 Failed to allocate mempool " 5341 "unreg_rpi UNREG x%x, " 5342 "DID x%x, flag x%x, " 5343 "ndlp x%px\n", 5344 ndlp->nlp_rpi, ndlp->nlp_DID, 5345 ndlp->nlp_flag, ndlp); 5346 5347 /* Because mempool_alloc failed, we 5348 * will issue a LOGO here and keep the rpi alive if 5349 * not unloading. 5350 */ 5351 if (!test_bit(FC_UNLOADING, &vport->load_flag)) { 5352 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5353 lpfc_issue_els_logo(vport, ndlp, 0); 5354 ndlp->nlp_prev_state = ndlp->nlp_state; 5355 lpfc_nlp_set_state(vport, ndlp, 5356 NLP_STE_NPR_NODE); 5357 } 5358 5359 return 1; 5360 } 5361 lpfc_no_rpi(phba, ndlp); 5362out: 5363 if (phba->sli_rev != LPFC_SLI_REV4) 5364 ndlp->nlp_rpi = 0; 5365 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 5366 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 5367 if (acc_plogi) 5368 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5369 return 1; 5370 } 5371 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5372 return 0; 5373} 5374 5375/** 5376 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 5377 * @phba: pointer to lpfc hba data structure. 5378 * 5379 * This routine is invoked to unregister all the currently registered RPIs 5380 * to the HBA. 5381 **/ 5382void 5383lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5384{ 5385 struct lpfc_vport **vports; 5386 struct lpfc_nodelist *ndlp; 5387 int i; 5388 unsigned long iflags; 5389 5390 vports = lpfc_create_vport_work_array(phba); 5391 if (!vports) { 5392 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5393 "2884 Vport array allocation failed \n"); 5394 return; 5395 } 5396 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5397 spin_lock_irqsave(&vports[i]->fc_nodes_list_lock, iflags); 5398 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5399 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5400 /* The mempool_alloc might sleep */ 5401 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock, 5402 iflags); 5403 lpfc_unreg_rpi(vports[i], ndlp); 5404 spin_lock_irqsave(&vports[i]->fc_nodes_list_lock, 5405 iflags); 5406 } 5407 } 5408 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock, iflags); 5409 } 5410 lpfc_destroy_vport_work_array(phba, vports); 5411} 5412 5413void 5414lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5415{ 5416 struct lpfc_hba *phba = vport->phba; 5417 LPFC_MBOXQ_t *mbox; 5418 int rc; 5419 5420 if (phba->sli_rev == LPFC_SLI_REV4) { 5421 lpfc_sli4_unreg_all_rpis(vport); 5422 return; 5423 } 5424 5425 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5426 if (mbox) { 5427 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5428 mbox); 5429 mbox->vport = vport; 5430 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5431 mbox->ctx_ndlp = NULL; 5432 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5433 if (rc != MBX_TIMEOUT) 5434 mempool_free(mbox, phba->mbox_mem_pool); 5435 5436 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5437 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5438 "1836 Could not issue " 5439 "unreg_login(all_rpis) status %d\n", 5440 rc); 5441 } 5442} 5443 5444void 5445lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5446{ 5447 struct lpfc_hba *phba = vport->phba; 5448 LPFC_MBOXQ_t *mbox; 5449 int rc; 5450 5451 /* Unreg DID is an SLI3 operation. */ 5452 if (phba->sli_rev > LPFC_SLI_REV3) 5453 return; 5454 5455 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5456 if (mbox) { 5457 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5458 mbox); 5459 mbox->vport = vport; 5460 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5461 mbox->ctx_ndlp = NULL; 5462 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5463 if (rc != MBX_TIMEOUT) 5464 mempool_free(mbox, phba->mbox_mem_pool); 5465 5466 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5467 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5468 "1815 Could not issue " 5469 "unreg_did (default rpis) status %d\n", 5470 rc); 5471 } 5472} 5473 5474/* 5475 * Free resources associated with LPFC_NODELIST entry 5476 * so it can be freed. 5477 */ 5478static int 5479lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5480{ 5481 struct lpfc_hba *phba = vport->phba; 5482 LPFC_MBOXQ_t *mb, *nextmb; 5483 5484 /* Cleanup node for NPort <nlp_DID> */ 5485 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5486 "0900 Cleanup node for NPort x%x " 5487 "Data: x%x x%x x%x\n", 5488 ndlp->nlp_DID, ndlp->nlp_flag, 5489 ndlp->nlp_state, ndlp->nlp_rpi); 5490 lpfc_dequeue_node(vport, ndlp); 5491 5492 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5493 5494 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5495 if ((mb = phba->sli.mbox_active)) { 5496 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5497 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5498 (ndlp == mb->ctx_ndlp)) { 5499 mb->ctx_ndlp = NULL; 5500 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5501 } 5502 } 5503 5504 spin_lock_irq(&phba->hbalock); 5505 /* Cleanup REG_LOGIN completions which are not yet processed */ 5506 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5507 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5508 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5509 (ndlp != mb->ctx_ndlp)) 5510 continue; 5511 5512 mb->ctx_ndlp = NULL; 5513 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5514 } 5515 5516 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5517 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5518 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5519 (ndlp == mb->ctx_ndlp)) { 5520 list_del(&mb->list); 5521 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 5522 5523 /* Don't invoke lpfc_nlp_put. The driver is in 5524 * lpfc_nlp_release context. 5525 */ 5526 } 5527 } 5528 spin_unlock_irq(&phba->hbalock); 5529 5530 lpfc_els_abort(phba, ndlp); 5531 5532 spin_lock_irq(&ndlp->lock); 5533 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5534 spin_unlock_irq(&ndlp->lock); 5535 5536 ndlp->nlp_last_elscmd = 0; 5537 del_timer_sync(&ndlp->nlp_delayfunc); 5538 5539 list_del_init(&ndlp->els_retry_evt.evt_listp); 5540 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5541 list_del_init(&ndlp->recovery_evt.evt_listp); 5542 lpfc_cleanup_vports_rrqs(vport, ndlp); 5543 5544 if (phba->sli_rev == LPFC_SLI_REV4) 5545 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5546 5547 return 0; 5548} 5549 5550static int 5551lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5552 uint32_t did) 5553{ 5554 D_ID mydid, ndlpdid, matchdid; 5555 5556 if (did == Bcast_DID) 5557 return 0; 5558 5559 /* First check for Direct match */ 5560 if (ndlp->nlp_DID == did) 5561 return 1; 5562 5563 /* Next check for area/domain identically equals 0 match */ 5564 mydid.un.word = vport->fc_myDID; 5565 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5566 return 0; 5567 } 5568 5569 matchdid.un.word = did; 5570 ndlpdid.un.word = ndlp->nlp_DID; 5571 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5572 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5573 (mydid.un.b.area == matchdid.un.b.area)) { 5574 /* This code is supposed to match the ID 5575 * for a private loop device that is 5576 * connect to fl_port. But we need to 5577 * check that the port did not just go 5578 * from pt2pt to fabric or we could end 5579 * up matching ndlp->nlp_DID 000001 to 5580 * fabric DID 0x20101 5581 */ 5582 if ((ndlpdid.un.b.domain == 0) && 5583 (ndlpdid.un.b.area == 0)) { 5584 if (ndlpdid.un.b.id && 5585 vport->phba->fc_topology == 5586 LPFC_TOPOLOGY_LOOP) 5587 return 1; 5588 } 5589 return 0; 5590 } 5591 5592 matchdid.un.word = ndlp->nlp_DID; 5593 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5594 (mydid.un.b.area == ndlpdid.un.b.area)) { 5595 if ((matchdid.un.b.domain == 0) && 5596 (matchdid.un.b.area == 0)) { 5597 if (matchdid.un.b.id) 5598 return 1; 5599 } 5600 } 5601 } 5602 return 0; 5603} 5604 5605/* Search for a nodelist entry */ 5606static struct lpfc_nodelist * 5607__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5608{ 5609 struct lpfc_nodelist *ndlp; 5610 uint32_t data1; 5611 5612 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5613 if (lpfc_matchdid(vport, ndlp, did)) { 5614 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5615 ((uint32_t)ndlp->nlp_xri << 16) | 5616 ((uint32_t)ndlp->nlp_type << 8) 5617 ); 5618 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE_VERBOSE, 5619 "0929 FIND node DID " 5620 "Data: x%px x%x x%x x%x x%x x%px\n", 5621 ndlp, ndlp->nlp_DID, 5622 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5623 ndlp->active_rrqs_xri_bitmap); 5624 return ndlp; 5625 } 5626 } 5627 5628 /* FIND node did <did> NOT FOUND */ 5629 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5630 "0932 FIND node did x%x NOT FOUND.\n", did); 5631 return NULL; 5632} 5633 5634struct lpfc_nodelist * 5635lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5636{ 5637 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5638 struct lpfc_nodelist *ndlp; 5639 unsigned long iflags; 5640 5641 spin_lock_irqsave(shost->host_lock, iflags); 5642 ndlp = __lpfc_findnode_did(vport, did); 5643 spin_unlock_irqrestore(shost->host_lock, iflags); 5644 return ndlp; 5645} 5646 5647struct lpfc_nodelist * 5648lpfc_findnode_mapped(struct lpfc_vport *vport) 5649{ 5650 struct lpfc_nodelist *ndlp; 5651 uint32_t data1; 5652 unsigned long iflags; 5653 5654 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 5655 5656 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5657 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5658 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5659 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5660 ((uint32_t)ndlp->nlp_xri << 16) | 5661 ((uint32_t)ndlp->nlp_type << 8) | 5662 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5663 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, 5664 iflags); 5665 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE_VERBOSE, 5666 "2025 FIND node DID MAPPED " 5667 "Data: x%px x%x x%x x%x x%px\n", 5668 ndlp, ndlp->nlp_DID, 5669 ndlp->nlp_flag, data1, 5670 ndlp->active_rrqs_xri_bitmap); 5671 return ndlp; 5672 } 5673 } 5674 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 5675 5676 /* FIND node did <did> NOT FOUND */ 5677 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5678 "2026 FIND mapped did NOT FOUND.\n"); 5679 return NULL; 5680} 5681 5682struct lpfc_nodelist * 5683lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5684{ 5685 struct lpfc_nodelist *ndlp; 5686 5687 ndlp = lpfc_findnode_did(vport, did); 5688 if (!ndlp) { 5689 if (vport->phba->nvmet_support) 5690 return NULL; 5691 if (test_bit(FC_RSCN_MODE, &vport->fc_flag) && 5692 lpfc_rscn_payload_check(vport, did) == 0) 5693 return NULL; 5694 ndlp = lpfc_nlp_init(vport, did); 5695 if (!ndlp) 5696 return NULL; 5697 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5698 5699 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5700 "6453 Setup New Node 2B_DISC x%x " 5701 "Data:x%x x%x x%lx\n", 5702 ndlp->nlp_DID, ndlp->nlp_flag, 5703 ndlp->nlp_state, vport->fc_flag); 5704 5705 spin_lock_irq(&ndlp->lock); 5706 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5707 spin_unlock_irq(&ndlp->lock); 5708 return ndlp; 5709 } 5710 5711 /* The NVME Target does not want to actively manage an rport. 5712 * The goal is to allow the target to reset its state and clear 5713 * pending IO in preparation for the initiator to recover. 5714 */ 5715 if (test_bit(FC_RSCN_MODE, &vport->fc_flag) && 5716 !test_bit(FC_NDISC_ACTIVE, &vport->fc_flag)) { 5717 if (lpfc_rscn_payload_check(vport, did)) { 5718 5719 /* Since this node is marked for discovery, 5720 * delay timeout is not needed. 5721 */ 5722 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5723 5724 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5725 "6455 Setup RSCN Node 2B_DISC x%x " 5726 "Data:x%x x%x x%lx\n", 5727 ndlp->nlp_DID, ndlp->nlp_flag, 5728 ndlp->nlp_state, vport->fc_flag); 5729 5730 /* NVME Target mode waits until rport is known to be 5731 * impacted by the RSCN before it transitions. No 5732 * active management - just go to NPR provided the 5733 * node had a valid login. 5734 */ 5735 if (vport->phba->nvmet_support) 5736 return ndlp; 5737 5738 if (ndlp->nlp_state > NLP_STE_UNUSED_NODE && 5739 ndlp->nlp_state < NLP_STE_PRLI_ISSUE) { 5740 lpfc_disc_state_machine(vport, ndlp, NULL, 5741 NLP_EVT_DEVICE_RECOVERY); 5742 } 5743 5744 spin_lock_irq(&ndlp->lock); 5745 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5746 spin_unlock_irq(&ndlp->lock); 5747 } else { 5748 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5749 "6456 Skip Setup RSCN Node x%x " 5750 "Data:x%x x%x x%lx\n", 5751 ndlp->nlp_DID, ndlp->nlp_flag, 5752 ndlp->nlp_state, vport->fc_flag); 5753 ndlp = NULL; 5754 } 5755 } else { 5756 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5757 "6457 Setup Active Node 2B_DISC x%x " 5758 "Data:x%x x%x x%lx\n", 5759 ndlp->nlp_DID, ndlp->nlp_flag, 5760 ndlp->nlp_state, vport->fc_flag); 5761 5762 /* If the initiator received a PLOGI from this NPort or if the 5763 * initiator is already in the process of discovery on it, 5764 * there's no need to try to discover it again. 5765 */ 5766 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5767 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5768 (!vport->phba->nvmet_support && 5769 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5770 return NULL; 5771 5772 if (vport->phba->nvmet_support) 5773 return ndlp; 5774 5775 /* Moving to NPR state clears unsolicited flags and 5776 * allows for rediscovery 5777 */ 5778 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5779 5780 spin_lock_irq(&ndlp->lock); 5781 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5782 spin_unlock_irq(&ndlp->lock); 5783 } 5784 return ndlp; 5785} 5786 5787/* Build a list of nodes to discover based on the loopmap */ 5788void 5789lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5790{ 5791 struct lpfc_hba *phba = vport->phba; 5792 int j; 5793 uint32_t alpa, index; 5794 5795 if (!lpfc_is_link_up(phba)) 5796 return; 5797 5798 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5799 return; 5800 5801 /* Check for loop map present or not */ 5802 if (phba->alpa_map[0]) { 5803 for (j = 1; j <= phba->alpa_map[0]; j++) { 5804 alpa = phba->alpa_map[j]; 5805 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5806 continue; 5807 lpfc_setup_disc_node(vport, alpa); 5808 } 5809 } else { 5810 /* No alpamap, so try all alpa's */ 5811 for (j = 0; j < FC_MAXLOOP; j++) { 5812 /* If cfg_scan_down is set, start from highest 5813 * ALPA (0xef) to lowest (0x1). 5814 */ 5815 if (vport->cfg_scan_down) 5816 index = j; 5817 else 5818 index = FC_MAXLOOP - j - 1; 5819 alpa = lpfcAlpaArray[index]; 5820 if ((vport->fc_myDID & 0xff) == alpa) 5821 continue; 5822 lpfc_setup_disc_node(vport, alpa); 5823 } 5824 } 5825 return; 5826} 5827 5828/* SLI3 only */ 5829void 5830lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5831{ 5832 LPFC_MBOXQ_t *mbox; 5833 struct lpfc_sli *psli = &phba->sli; 5834 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5835 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5836 int rc; 5837 5838 /* 5839 * if it's not a physical port or if we already send 5840 * clear_la then don't send it. 5841 */ 5842 if ((phba->link_state >= LPFC_CLEAR_LA) || 5843 (vport->port_type != LPFC_PHYSICAL_PORT) || 5844 (phba->sli_rev == LPFC_SLI_REV4)) 5845 return; 5846 5847 /* Link up discovery */ 5848 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5849 phba->link_state = LPFC_CLEAR_LA; 5850 lpfc_clear_la(phba, mbox); 5851 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5852 mbox->vport = vport; 5853 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5854 if (rc == MBX_NOT_FINISHED) { 5855 mempool_free(mbox, phba->mbox_mem_pool); 5856 lpfc_disc_flush_list(vport); 5857 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5858 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5859 phba->link_state = LPFC_HBA_ERROR; 5860 } 5861 } 5862} 5863 5864/* Reg_vpi to tell firmware to resume normal operations */ 5865void 5866lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5867{ 5868 LPFC_MBOXQ_t *regvpimbox; 5869 5870 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5871 if (regvpimbox) { 5872 lpfc_reg_vpi(vport, regvpimbox); 5873 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5874 regvpimbox->vport = vport; 5875 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5876 == MBX_NOT_FINISHED) { 5877 mempool_free(regvpimbox, phba->mbox_mem_pool); 5878 } 5879 } 5880} 5881 5882/* Start Link up / RSCN discovery on NPR nodes */ 5883void 5884lpfc_disc_start(struct lpfc_vport *vport) 5885{ 5886 struct lpfc_hba *phba = vport->phba; 5887 uint32_t num_sent; 5888 uint32_t clear_la_pending; 5889 5890 if (!lpfc_is_link_up(phba)) { 5891 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5892 "3315 Link is not up %x\n", 5893 phba->link_state); 5894 return; 5895 } 5896 5897 if (phba->link_state == LPFC_CLEAR_LA) 5898 clear_la_pending = 1; 5899 else 5900 clear_la_pending = 0; 5901 5902 if (vport->port_state < LPFC_VPORT_READY) 5903 vport->port_state = LPFC_DISC_AUTH; 5904 5905 lpfc_set_disctmo(vport); 5906 5907 vport->fc_prevDID = vport->fc_myDID; 5908 vport->num_disc_nodes = 0; 5909 5910 /* Start Discovery state <hba_state> */ 5911 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5912 "0202 Start Discovery port state x%x " 5913 "flg x%lx Data: x%x x%x x%x\n", 5914 vport->port_state, vport->fc_flag, 5915 atomic_read(&vport->fc_plogi_cnt), 5916 atomic_read(&vport->fc_adisc_cnt), 5917 atomic_read(&vport->fc_npr_cnt)); 5918 5919 /* First do ADISCs - if any */ 5920 num_sent = lpfc_els_disc_adisc(vport); 5921 5922 if (num_sent) 5923 return; 5924 5925 /* Register the VPI for SLI3, NPIV only. */ 5926 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5927 !test_bit(FC_PT2PT, &vport->fc_flag) && 5928 !test_bit(FC_RSCN_MODE, &vport->fc_flag) && 5929 (phba->sli_rev < LPFC_SLI_REV4)) { 5930 lpfc_issue_clear_la(phba, vport); 5931 lpfc_issue_reg_vpi(phba, vport); 5932 return; 5933 } 5934 5935 /* 5936 * For SLI2, we need to set port_state to READY and continue 5937 * discovery. 5938 */ 5939 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5940 /* If we get here, there is nothing to ADISC */ 5941 lpfc_issue_clear_la(phba, vport); 5942 5943 if (!test_bit(FC_ABORT_DISCOVERY, &vport->fc_flag)) { 5944 vport->num_disc_nodes = 0; 5945 /* go thru NPR nodes and issue ELS PLOGIs */ 5946 if (atomic_read(&vport->fc_npr_cnt)) 5947 lpfc_els_disc_plogi(vport); 5948 5949 if (!vport->num_disc_nodes) { 5950 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); 5951 lpfc_can_disctmo(vport); 5952 } 5953 } 5954 vport->port_state = LPFC_VPORT_READY; 5955 } else { 5956 /* Next do PLOGIs - if any */ 5957 num_sent = lpfc_els_disc_plogi(vport); 5958 5959 if (num_sent) 5960 return; 5961 5962 if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) { 5963 /* Check to see if more RSCNs came in while we 5964 * were processing this one. 5965 */ 5966 if (vport->fc_rscn_id_cnt == 0 && 5967 !test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) { 5968 clear_bit(FC_RSCN_MODE, &vport->fc_flag); 5969 lpfc_can_disctmo(vport); 5970 } else { 5971 lpfc_els_handle_rscn(vport); 5972 } 5973 } 5974 } 5975 return; 5976} 5977 5978/* 5979 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5980 * ring the match the sppecified nodelist. 5981 */ 5982static void 5983lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5984{ 5985 LIST_HEAD(completions); 5986 struct lpfc_iocbq *iocb, *next_iocb; 5987 struct lpfc_sli_ring *pring; 5988 u32 ulp_command; 5989 5990 pring = lpfc_phba_elsring(phba); 5991 if (unlikely(!pring)) 5992 return; 5993 5994 /* Error matching iocb on txq or txcmplq 5995 * First check the txq. 5996 */ 5997 spin_lock_irq(&phba->hbalock); 5998 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5999 if (iocb->ndlp != ndlp) 6000 continue; 6001 6002 ulp_command = get_job_cmnd(phba, iocb); 6003 6004 if (ulp_command == CMD_ELS_REQUEST64_CR || 6005 ulp_command == CMD_XMIT_ELS_RSP64_CX) { 6006 6007 list_move_tail(&iocb->list, &completions); 6008 } 6009 } 6010 6011 /* Next check the txcmplq */ 6012 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 6013 if (iocb->ndlp != ndlp) 6014 continue; 6015 6016 ulp_command = get_job_cmnd(phba, iocb); 6017 6018 if (ulp_command == CMD_ELS_REQUEST64_CR || 6019 ulp_command == CMD_XMIT_ELS_RSP64_CX) { 6020 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 6021 } 6022 } 6023 spin_unlock_irq(&phba->hbalock); 6024 6025 /* Make sure HBA is alive */ 6026 lpfc_issue_hb_tmo(phba); 6027 6028 /* Cancel all the IOCBs from the completions list */ 6029 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 6030 IOERR_SLI_ABORTED); 6031} 6032 6033static void 6034lpfc_disc_flush_list(struct lpfc_vport *vport) 6035{ 6036 struct lpfc_nodelist *ndlp, *next_ndlp; 6037 struct lpfc_hba *phba = vport->phba; 6038 6039 if (atomic_read(&vport->fc_plogi_cnt) || 6040 atomic_read(&vport->fc_adisc_cnt)) { 6041 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6042 nlp_listp) { 6043 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 6044 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 6045 lpfc_free_tx(phba, ndlp); 6046 } 6047 } 6048 } 6049} 6050 6051/* 6052 * lpfc_notify_xport_npr - notifies xport of node disappearance 6053 * @vport: Pointer to Virtual Port object. 6054 * 6055 * Transitions all ndlps to NPR state. When lpfc_nlp_set_state 6056 * calls lpfc_nlp_state_cleanup, the ndlp->rport is unregistered 6057 * and transport notified that the node is gone. 6058 * Return Code: 6059 * none 6060 */ 6061static void 6062lpfc_notify_xport_npr(struct lpfc_vport *vport) 6063{ 6064 struct lpfc_nodelist *ndlp, *next_ndlp; 6065 6066 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6067 nlp_listp) { 6068 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 6069 } 6070} 6071void 6072lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 6073{ 6074 lpfc_els_flush_rscn(vport); 6075 lpfc_els_flush_cmd(vport); 6076 lpfc_disc_flush_list(vport); 6077 if (pci_channel_offline(vport->phba->pcidev)) 6078 lpfc_notify_xport_npr(vport); 6079} 6080 6081/*****************************************************************************/ 6082/* 6083 * NAME: lpfc_disc_timeout 6084 * 6085 * FUNCTION: Fibre Channel driver discovery timeout routine. 6086 * 6087 * EXECUTION ENVIRONMENT: interrupt only 6088 * 6089 * CALLED FROM: 6090 * Timer function 6091 * 6092 * RETURNS: 6093 * none 6094 */ 6095/*****************************************************************************/ 6096void 6097lpfc_disc_timeout(struct timer_list *t) 6098{ 6099 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 6100 struct lpfc_hba *phba = vport->phba; 6101 uint32_t tmo_posted; 6102 unsigned long flags = 0; 6103 6104 if (unlikely(!phba)) 6105 return; 6106 6107 spin_lock_irqsave(&vport->work_port_lock, flags); 6108 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 6109 if (!tmo_posted) 6110 vport->work_port_events |= WORKER_DISC_TMO; 6111 spin_unlock_irqrestore(&vport->work_port_lock, flags); 6112 6113 if (!tmo_posted) 6114 lpfc_worker_wake_up(phba); 6115 return; 6116} 6117 6118static void 6119lpfc_disc_timeout_handler(struct lpfc_vport *vport) 6120{ 6121 struct lpfc_hba *phba = vport->phba; 6122 struct lpfc_sli *psli = &phba->sli; 6123 struct lpfc_nodelist *ndlp, *next_ndlp; 6124 LPFC_MBOXQ_t *initlinkmbox; 6125 int rc, clrlaerr = 0; 6126 6127 if (!test_and_clear_bit(FC_DISC_TMO, &vport->fc_flag)) 6128 return; 6129 6130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 6131 "disc timeout: state:x%x rtry:x%x flg:x%x", 6132 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 6133 6134 switch (vport->port_state) { 6135 6136 case LPFC_LOCAL_CFG_LINK: 6137 /* 6138 * port_state is identically LPFC_LOCAL_CFG_LINK while 6139 * waiting for FAN timeout 6140 */ 6141 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 6142 "0221 FAN timeout\n"); 6143 6144 /* Start discovery by sending FLOGI, clean up old rpis */ 6145 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6146 nlp_listp) { 6147 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 6148 continue; 6149 if (ndlp->nlp_type & NLP_FABRIC) { 6150 /* Clean up the ndlp on Fabric connections */ 6151 lpfc_drop_node(vport, ndlp); 6152 6153 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 6154 /* Fail outstanding IO now since device 6155 * is marked for PLOGI. 6156 */ 6157 lpfc_unreg_rpi(vport, ndlp); 6158 } 6159 } 6160 if (vport->port_state != LPFC_FLOGI) { 6161 if (phba->sli_rev <= LPFC_SLI_REV3) 6162 lpfc_initial_flogi(vport); 6163 else 6164 lpfc_issue_init_vfi(vport); 6165 return; 6166 } 6167 break; 6168 6169 case LPFC_FDISC: 6170 case LPFC_FLOGI: 6171 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 6172 /* Initial FLOGI timeout */ 6173 lpfc_printf_vlog(vport, KERN_ERR, 6174 LOG_TRACE_EVENT, 6175 "0222 Initial %s timeout\n", 6176 vport->vpi ? "FDISC" : "FLOGI"); 6177 6178 /* Assume no Fabric and go on with discovery. 6179 * Check for outstanding ELS FLOGI to abort. 6180 */ 6181 6182 /* FLOGI failed, so just use loop map to make discovery list */ 6183 lpfc_disc_list_loopmap(vport); 6184 6185 /* Start discovery */ 6186 lpfc_disc_start(vport); 6187 break; 6188 6189 case LPFC_FABRIC_CFG_LINK: 6190 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 6191 NameServer login */ 6192 lpfc_printf_vlog(vport, KERN_ERR, 6193 LOG_TRACE_EVENT, 6194 "0223 Timeout while waiting for " 6195 "NameServer login\n"); 6196 /* Next look for NameServer ndlp */ 6197 ndlp = lpfc_findnode_did(vport, NameServer_DID); 6198 if (ndlp) 6199 lpfc_els_abort(phba, ndlp); 6200 6201 /* ReStart discovery */ 6202 goto restart_disc; 6203 6204 case LPFC_NS_QRY: 6205 /* Check for wait for NameServer Rsp timeout */ 6206 lpfc_printf_vlog(vport, KERN_ERR, 6207 LOG_TRACE_EVENT, 6208 "0224 NameServer Query timeout " 6209 "Data: x%x x%x\n", 6210 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6211 6212 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 6213 /* Try it one more time */ 6214 vport->fc_ns_retry++; 6215 vport->gidft_inp = 0; 6216 rc = lpfc_issue_gidft(vport); 6217 if (rc == 0) 6218 break; 6219 } 6220 vport->fc_ns_retry = 0; 6221 6222restart_disc: 6223 /* 6224 * Discovery is over. 6225 * set port_state to PORT_READY if SLI2. 6226 * cmpl_reg_vpi will set port_state to READY for SLI3. 6227 */ 6228 if (phba->sli_rev < LPFC_SLI_REV4) { 6229 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6230 lpfc_issue_reg_vpi(phba, vport); 6231 else { 6232 lpfc_issue_clear_la(phba, vport); 6233 vport->port_state = LPFC_VPORT_READY; 6234 } 6235 } 6236 6237 /* Setup and issue mailbox INITIALIZE LINK command */ 6238 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6239 if (!initlinkmbox) { 6240 lpfc_printf_vlog(vport, KERN_ERR, 6241 LOG_TRACE_EVENT, 6242 "0206 Device Discovery " 6243 "completion error\n"); 6244 phba->link_state = LPFC_HBA_ERROR; 6245 break; 6246 } 6247 6248 lpfc_linkdown(phba); 6249 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 6250 phba->cfg_link_speed); 6251 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 6252 initlinkmbox->vport = vport; 6253 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 6254 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 6255 lpfc_set_loopback_flag(phba); 6256 if (rc == MBX_NOT_FINISHED) 6257 mempool_free(initlinkmbox, phba->mbox_mem_pool); 6258 6259 break; 6260 6261 case LPFC_DISC_AUTH: 6262 /* Node Authentication timeout */ 6263 lpfc_printf_vlog(vport, KERN_ERR, 6264 LOG_TRACE_EVENT, 6265 "0227 Node Authentication timeout\n"); 6266 lpfc_disc_flush_list(vport); 6267 6268 /* 6269 * set port_state to PORT_READY if SLI2. 6270 * cmpl_reg_vpi will set port_state to READY for SLI3. 6271 */ 6272 if (phba->sli_rev < LPFC_SLI_REV4) { 6273 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6274 lpfc_issue_reg_vpi(phba, vport); 6275 else { /* NPIV Not enabled */ 6276 lpfc_issue_clear_la(phba, vport); 6277 vport->port_state = LPFC_VPORT_READY; 6278 } 6279 } 6280 break; 6281 6282 case LPFC_VPORT_READY: 6283 if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) { 6284 lpfc_printf_vlog(vport, KERN_ERR, 6285 LOG_TRACE_EVENT, 6286 "0231 RSCN timeout Data: x%x " 6287 "x%x x%x x%x\n", 6288 vport->fc_ns_retry, LPFC_MAX_NS_RETRY, 6289 vport->port_state, vport->gidft_inp); 6290 6291 /* Cleanup any outstanding ELS commands */ 6292 lpfc_els_flush_cmd(vport); 6293 6294 lpfc_els_flush_rscn(vport); 6295 lpfc_disc_flush_list(vport); 6296 } 6297 break; 6298 6299 default: 6300 lpfc_printf_vlog(vport, KERN_ERR, 6301 LOG_TRACE_EVENT, 6302 "0273 Unexpected discovery timeout, " 6303 "vport State x%x\n", vport->port_state); 6304 break; 6305 } 6306 6307 switch (phba->link_state) { 6308 case LPFC_CLEAR_LA: 6309 /* CLEAR LA timeout */ 6310 lpfc_printf_vlog(vport, KERN_ERR, 6311 LOG_TRACE_EVENT, 6312 "0228 CLEAR LA timeout\n"); 6313 clrlaerr = 1; 6314 break; 6315 6316 case LPFC_LINK_UP: 6317 lpfc_issue_clear_la(phba, vport); 6318 fallthrough; 6319 case LPFC_LINK_UNKNOWN: 6320 case LPFC_WARM_START: 6321 case LPFC_INIT_START: 6322 case LPFC_INIT_MBX_CMDS: 6323 case LPFC_LINK_DOWN: 6324 case LPFC_HBA_ERROR: 6325 lpfc_printf_vlog(vport, KERN_ERR, 6326 LOG_TRACE_EVENT, 6327 "0230 Unexpected timeout, hba link " 6328 "state x%x\n", phba->link_state); 6329 clrlaerr = 1; 6330 break; 6331 6332 case LPFC_HBA_READY: 6333 break; 6334 } 6335 6336 if (clrlaerr) { 6337 lpfc_disc_flush_list(vport); 6338 if (phba->sli_rev != LPFC_SLI_REV4) { 6339 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6340 ~LPFC_STOP_IOCB_EVENT; 6341 psli->sli3_ring[LPFC_FCP_RING].flag &= 6342 ~LPFC_STOP_IOCB_EVENT; 6343 } 6344 vport->port_state = LPFC_VPORT_READY; 6345 } 6346 return; 6347} 6348 6349/* 6350 * This routine handles processing a NameServer REG_LOGIN mailbox 6351 * command upon completion. It is setup in the LPFC_MBOXQ 6352 * as the completion routine when the command is 6353 * handed off to the SLI layer. 6354 */ 6355void 6356lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6357{ 6358 MAILBOX_t *mb = &pmb->u.mb; 6359 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 6360 struct lpfc_vport *vport = pmb->vport; 6361 6362 pmb->ctx_ndlp = NULL; 6363 6364 if (phba->sli_rev < LPFC_SLI_REV4) 6365 ndlp->nlp_rpi = mb->un.varWords[0]; 6366 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6367 ndlp->nlp_type |= NLP_FABRIC; 6368 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6369 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6370 "0004 rpi:%x DID:%x flg:%x %d x%px\n", 6371 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6372 kref_read(&ndlp->kref), 6373 ndlp); 6374 /* 6375 * Start issuing Fabric-Device Management Interface (FDMI) command to 6376 * 0xfffffa (FDMI well known port). 6377 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6378 * DPRT -> RPRT (vports) 6379 */ 6380 if (vport->port_type == LPFC_PHYSICAL_PORT) { 6381 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */ 6382 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6383 } else { 6384 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6385 } 6386 6387 6388 /* decrement the node reference count held for this callback 6389 * function. 6390 */ 6391 lpfc_nlp_put(ndlp); 6392 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 6393 return; 6394} 6395 6396static int 6397lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6398{ 6399 uint16_t *rpi = param; 6400 6401 return ndlp->nlp_rpi == *rpi; 6402} 6403 6404static int 6405lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6406{ 6407 return memcmp(&ndlp->nlp_portname, param, 6408 sizeof(ndlp->nlp_portname)) == 0; 6409} 6410 6411static struct lpfc_nodelist * 6412__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6413{ 6414 struct lpfc_nodelist *ndlp; 6415 6416 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6417 if (filter(ndlp, param)) { 6418 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE_VERBOSE, 6419 "3185 FIND node filter %ps DID " 6420 "ndlp x%px did x%x flg x%x st x%x " 6421 "xri x%x type x%x rpi x%x\n", 6422 filter, ndlp, ndlp->nlp_DID, 6423 ndlp->nlp_flag, ndlp->nlp_state, 6424 ndlp->nlp_xri, ndlp->nlp_type, 6425 ndlp->nlp_rpi); 6426 return ndlp; 6427 } 6428 } 6429 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6430 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6431 return NULL; 6432} 6433 6434/* 6435 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6436 * returns the node list element pointer else return NULL. 6437 */ 6438struct lpfc_nodelist * 6439__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6440{ 6441 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6442} 6443 6444/* 6445 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6446 * returns the node element list pointer else return NULL. 6447 */ 6448struct lpfc_nodelist * 6449lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6450{ 6451 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6452 struct lpfc_nodelist *ndlp; 6453 6454 spin_lock_irq(shost->host_lock); 6455 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6456 spin_unlock_irq(shost->host_lock); 6457 return ndlp; 6458} 6459 6460/* 6461 * This routine looks up the ndlp lists for the given RPI. If the rpi 6462 * is found, the routine returns the node element list pointer else 6463 * return NULL. 6464 */ 6465struct lpfc_nodelist * 6466lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6467{ 6468 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6469 struct lpfc_nodelist *ndlp; 6470 unsigned long flags; 6471 6472 spin_lock_irqsave(shost->host_lock, flags); 6473 ndlp = __lpfc_findnode_rpi(vport, rpi); 6474 spin_unlock_irqrestore(shost->host_lock, flags); 6475 return ndlp; 6476} 6477 6478/** 6479 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6480 * @phba: pointer to lpfc hba data structure. 6481 * @vpi: the physical host virtual N_Port identifier. 6482 * 6483 * This routine finds a vport on a HBA (referred by @phba) through a 6484 * @vpi. The function walks the HBA's vport list and returns the address 6485 * of the vport with the matching @vpi. 6486 * 6487 * Return code 6488 * NULL - No vport with the matching @vpi found 6489 * Otherwise - Address to the vport with the matching @vpi. 6490 **/ 6491struct lpfc_vport * 6492lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6493{ 6494 struct lpfc_vport *vport; 6495 unsigned long flags; 6496 int i = 0; 6497 6498 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6499 if (vpi > 0) { 6500 /* 6501 * Translate the physical vpi to the logical vpi. The 6502 * vport stores the logical vpi. 6503 */ 6504 for (i = 0; i <= phba->max_vpi; i++) { 6505 if (vpi == phba->vpi_ids[i]) 6506 break; 6507 } 6508 6509 if (i > phba->max_vpi) { 6510 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6511 "2936 Could not find Vport mapped " 6512 "to vpi %d\n", vpi); 6513 return NULL; 6514 } 6515 } 6516 6517 spin_lock_irqsave(&phba->port_list_lock, flags); 6518 list_for_each_entry(vport, &phba->port_list, listentry) { 6519 if (vport->vpi == i) { 6520 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6521 return vport; 6522 } 6523 } 6524 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6525 return NULL; 6526} 6527 6528struct lpfc_nodelist * 6529lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6530{ 6531 struct lpfc_nodelist *ndlp; 6532 int rpi = LPFC_RPI_ALLOC_ERROR; 6533 6534 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6535 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6536 if (rpi == LPFC_RPI_ALLOC_ERROR) 6537 return NULL; 6538 } 6539 6540 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6541 if (!ndlp) { 6542 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6543 lpfc_sli4_free_rpi(vport->phba, rpi); 6544 return NULL; 6545 } 6546 6547 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6548 6549 spin_lock_init(&ndlp->lock); 6550 6551 lpfc_initialize_node(vport, ndlp, did); 6552 INIT_LIST_HEAD(&ndlp->nlp_listp); 6553 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6554 ndlp->nlp_rpi = rpi; 6555 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6556 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6557 "flg:x%x refcnt:%d\n", 6558 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6559 ndlp->nlp_flag, kref_read(&ndlp->kref)); 6560 6561 ndlp->active_rrqs_xri_bitmap = 6562 mempool_alloc(vport->phba->active_rrq_pool, 6563 GFP_KERNEL); 6564 if (ndlp->active_rrqs_xri_bitmap) 6565 memset(ndlp->active_rrqs_xri_bitmap, 0, 6566 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6567 } 6568 6569 6570 6571 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6572 "node init: did:x%x", 6573 ndlp->nlp_DID, 0, 0); 6574 6575 return ndlp; 6576} 6577 6578/* This routine releases all resources associated with a specifc NPort's ndlp 6579 * and mempool_free's the nodelist. 6580 */ 6581static void 6582lpfc_nlp_release(struct kref *kref) 6583{ 6584 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6585 kref); 6586 struct lpfc_vport *vport = ndlp->vport; 6587 6588 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6589 "node release: did:x%x flg:x%x type:x%x", 6590 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6591 6592 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6593 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n", 6594 __func__, ndlp, ndlp->nlp_DID, 6595 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6596 6597 /* remove ndlp from action. */ 6598 lpfc_cancel_retry_delay_tmo(vport, ndlp); 6599 lpfc_cleanup_node(vport, ndlp); 6600 6601 /* Not all ELS transactions have registered the RPI with the port. 6602 * In these cases the rpi usage is temporary and the node is 6603 * released when the WQE is completed. Catch this case to free the 6604 * RPI to the pool. Because this node is in the release path, a lock 6605 * is unnecessary. All references are gone and the node has been 6606 * dequeued. 6607 */ 6608 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 6609 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR && 6610 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) { 6611 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 6612 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 6613 } 6614 } 6615 6616 /* The node is not freed back to memory, it is released to a pool so 6617 * the node fields need to be cleaned up. 6618 */ 6619 ndlp->vport = NULL; 6620 ndlp->nlp_state = NLP_STE_FREED_NODE; 6621 ndlp->nlp_flag = 0; 6622 ndlp->fc4_xpt_flags = 0; 6623 6624 /* free ndlp memory for final ndlp release */ 6625 if (ndlp->phba->sli_rev == LPFC_SLI_REV4) 6626 mempool_free(ndlp->active_rrqs_xri_bitmap, 6627 ndlp->phba->active_rrq_pool); 6628 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6629} 6630 6631/* This routine bumps the reference count for a ndlp structure to ensure 6632 * that one discovery thread won't free a ndlp while another discovery thread 6633 * is using it. 6634 */ 6635struct lpfc_nodelist * 6636lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6637{ 6638 unsigned long flags; 6639 6640 if (ndlp) { 6641 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6642 "node get: did:x%x flg:x%x refcnt:x%x", 6643 ndlp->nlp_DID, ndlp->nlp_flag, 6644 kref_read(&ndlp->kref)); 6645 6646 /* The check of ndlp usage to prevent incrementing the 6647 * ndlp reference count that is in the process of being 6648 * released. 6649 */ 6650 spin_lock_irqsave(&ndlp->lock, flags); 6651 if (!kref_get_unless_zero(&ndlp->kref)) { 6652 spin_unlock_irqrestore(&ndlp->lock, flags); 6653 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6654 "0276 %s: ndlp:x%px refcnt:%d\n", 6655 __func__, (void *)ndlp, kref_read(&ndlp->kref)); 6656 return NULL; 6657 } 6658 spin_unlock_irqrestore(&ndlp->lock, flags); 6659 } else { 6660 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__); 6661 } 6662 6663 return ndlp; 6664} 6665 6666/* This routine decrements the reference count for a ndlp structure. If the 6667 * count goes to 0, this indicates the associated nodelist should be freed. 6668 */ 6669int 6670lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6671{ 6672 if (ndlp) { 6673 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6674 "node put: did:x%x flg:x%x refcnt:x%x", 6675 ndlp->nlp_DID, ndlp->nlp_flag, 6676 kref_read(&ndlp->kref)); 6677 } else { 6678 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__); 6679 } 6680 6681 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0; 6682} 6683 6684/** 6685 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6686 * @phba: Pointer to hba context object. 6687 * 6688 * This function iterate through all FC nodes associated 6689 * will all vports to check if there is any node with 6690 * fc_rports associated with it. If there is an fc_rport 6691 * associated with the node, then the node is either in 6692 * discovered state or its devloss_timer is pending. 6693 */ 6694static int 6695lpfc_fcf_inuse(struct lpfc_hba *phba) 6696{ 6697 struct lpfc_vport **vports; 6698 int i, ret = 0; 6699 struct lpfc_nodelist *ndlp; 6700 unsigned long iflags; 6701 6702 vports = lpfc_create_vport_work_array(phba); 6703 6704 /* If driver cannot allocate memory, indicate fcf is in use */ 6705 if (!vports) 6706 return 1; 6707 6708 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6709 /* 6710 * IF the CVL_RCVD bit is not set then we have sent the 6711 * flogi. 6712 * If dev_loss fires while we are waiting we do not want to 6713 * unreg the fcf. 6714 */ 6715 if (!test_bit(FC_VPORT_CVL_RCVD, &vports[i]->fc_flag)) { 6716 ret = 1; 6717 goto out; 6718 } 6719 spin_lock_irqsave(&vports[i]->fc_nodes_list_lock, iflags); 6720 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6721 if (ndlp->rport && 6722 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6723 ret = 1; 6724 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock, 6725 iflags); 6726 goto out; 6727 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6728 ret = 1; 6729 lpfc_printf_log(phba, KERN_INFO, 6730 LOG_NODE | LOG_DISCOVERY, 6731 "2624 RPI %x DID %x flag %x " 6732 "still logged in\n", 6733 ndlp->nlp_rpi, ndlp->nlp_DID, 6734 ndlp->nlp_flag); 6735 } 6736 } 6737 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock, iflags); 6738 } 6739out: 6740 lpfc_destroy_vport_work_array(phba, vports); 6741 return ret; 6742} 6743 6744/** 6745 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6746 * @phba: Pointer to hba context object. 6747 * @mboxq: Pointer to mailbox object. 6748 * 6749 * This function frees memory associated with the mailbox command. 6750 */ 6751void 6752lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6753{ 6754 struct lpfc_vport *vport = mboxq->vport; 6755 6756 if (mboxq->u.mb.mbxStatus) { 6757 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6758 "2555 UNREG_VFI mbxStatus error x%x " 6759 "HBA state x%x\n", 6760 mboxq->u.mb.mbxStatus, vport->port_state); 6761 } 6762 clear_bit(FC_VFI_REGISTERED, &phba->pport->fc_flag); 6763 mempool_free(mboxq, phba->mbox_mem_pool); 6764 return; 6765} 6766 6767/** 6768 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6769 * @phba: Pointer to hba context object. 6770 * @mboxq: Pointer to mailbox object. 6771 * 6772 * This function frees memory associated with the mailbox command. 6773 */ 6774static void 6775lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6776{ 6777 struct lpfc_vport *vport = mboxq->vport; 6778 6779 if (mboxq->u.mb.mbxStatus) { 6780 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6781 "2550 UNREG_FCFI mbxStatus error x%x " 6782 "HBA state x%x\n", 6783 mboxq->u.mb.mbxStatus, vport->port_state); 6784 } 6785 mempool_free(mboxq, phba->mbox_mem_pool); 6786 return; 6787} 6788 6789/** 6790 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6791 * @phba: Pointer to hba context object. 6792 * 6793 * This function prepare the HBA for unregistering the currently registered 6794 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6795 * VFIs. 6796 */ 6797int 6798lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6799{ 6800 struct lpfc_vport **vports; 6801 struct lpfc_nodelist *ndlp; 6802 struct Scsi_Host *shost; 6803 int i = 0, rc; 6804 6805 /* Unregister RPIs */ 6806 if (lpfc_fcf_inuse(phba)) 6807 lpfc_unreg_hba_rpis(phba); 6808 6809 /* At this point, all discovery is aborted */ 6810 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6811 6812 /* Unregister VPIs */ 6813 vports = lpfc_create_vport_work_array(phba); 6814 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6815 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6816 /* Stop FLOGI/FDISC retries */ 6817 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6818 if (ndlp) 6819 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6820 lpfc_cleanup_pending_mbox(vports[i]); 6821 if (phba->sli_rev == LPFC_SLI_REV4) 6822 lpfc_sli4_unreg_all_rpis(vports[i]); 6823 lpfc_mbx_unreg_vpi(vports[i]); 6824 shost = lpfc_shost_from_vport(vports[i]); 6825 spin_lock_irq(shost->host_lock); 6826 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6827 spin_unlock_irq(shost->host_lock); 6828 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vports[i]->fc_flag); 6829 } 6830 lpfc_destroy_vport_work_array(phba, vports); 6831 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6832 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6833 if (ndlp) 6834 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6835 lpfc_cleanup_pending_mbox(phba->pport); 6836 if (phba->sli_rev == LPFC_SLI_REV4) 6837 lpfc_sli4_unreg_all_rpis(phba->pport); 6838 lpfc_mbx_unreg_vpi(phba->pport); 6839 shost = lpfc_shost_from_vport(phba->pport); 6840 spin_lock_irq(shost->host_lock); 6841 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6842 spin_unlock_irq(shost->host_lock); 6843 set_bit(FC_VPORT_NEEDS_INIT_VPI, &phba->pport->fc_flag); 6844 } 6845 6846 /* Cleanup any outstanding ELS commands */ 6847 lpfc_els_flush_all_cmd(phba); 6848 6849 /* Unregister the physical port VFI */ 6850 rc = lpfc_issue_unreg_vfi(phba->pport); 6851 return rc; 6852} 6853 6854/** 6855 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6856 * @phba: Pointer to hba context object. 6857 * 6858 * This function issues synchronous unregister FCF mailbox command to HBA to 6859 * unregister the currently registered FCF record. The driver does not reset 6860 * the driver FCF usage state flags. 6861 * 6862 * Return 0 if successfully issued, none-zero otherwise. 6863 */ 6864int 6865lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6866{ 6867 LPFC_MBOXQ_t *mbox; 6868 int rc; 6869 6870 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6871 if (!mbox) { 6872 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6873 "2551 UNREG_FCFI mbox allocation failed" 6874 "HBA state x%x\n", phba->pport->port_state); 6875 return -ENOMEM; 6876 } 6877 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6878 mbox->vport = phba->pport; 6879 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6880 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6881 6882 if (rc == MBX_NOT_FINISHED) { 6883 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6884 "2552 Unregister FCFI command failed rc x%x " 6885 "HBA state x%x\n", 6886 rc, phba->pport->port_state); 6887 return -EINVAL; 6888 } 6889 return 0; 6890} 6891 6892/** 6893 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6894 * @phba: Pointer to hba context object. 6895 * 6896 * This function unregisters the currently reigstered FCF. This function 6897 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6898 */ 6899void 6900lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6901{ 6902 int rc; 6903 6904 /* Preparation for unregistering fcf */ 6905 rc = lpfc_unregister_fcf_prep(phba); 6906 if (rc) { 6907 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6908 "2748 Failed to prepare for unregistering " 6909 "HBA's FCF record: rc=%d\n", rc); 6910 return; 6911 } 6912 6913 /* Now, unregister FCF record and reset HBA FCF state */ 6914 rc = lpfc_sli4_unregister_fcf(phba); 6915 if (rc) 6916 return; 6917 /* Reset HBA FCF states after successful unregister FCF */ 6918 spin_lock_irq(&phba->hbalock); 6919 phba->fcf.fcf_flag = 0; 6920 spin_unlock_irq(&phba->hbalock); 6921 phba->fcf.current_rec.flag = 0; 6922 6923 /* 6924 * If driver is not unloading, check if there is any other 6925 * FCF record that can be used for discovery. 6926 */ 6927 if (test_bit(FC_UNLOADING, &phba->pport->load_flag) || 6928 phba->link_state < LPFC_LINK_UP) 6929 return; 6930 6931 /* This is considered as the initial FCF discovery scan */ 6932 spin_lock_irq(&phba->hbalock); 6933 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6934 spin_unlock_irq(&phba->hbalock); 6935 6936 /* Reset FCF roundrobin bmask for new discovery */ 6937 lpfc_sli4_clear_fcf_rr_bmask(phba); 6938 6939 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6940 6941 if (rc) { 6942 spin_lock_irq(&phba->hbalock); 6943 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6944 spin_unlock_irq(&phba->hbalock); 6945 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6946 "2553 lpfc_unregister_unused_fcf failed " 6947 "to read FCF record HBA state x%x\n", 6948 phba->pport->port_state); 6949 } 6950} 6951 6952/** 6953 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6954 * @phba: Pointer to hba context object. 6955 * 6956 * This function just unregisters the currently reigstered FCF. It does not 6957 * try to find another FCF for discovery. 6958 */ 6959void 6960lpfc_unregister_fcf(struct lpfc_hba *phba) 6961{ 6962 int rc; 6963 6964 /* Preparation for unregistering fcf */ 6965 rc = lpfc_unregister_fcf_prep(phba); 6966 if (rc) { 6967 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6968 "2749 Failed to prepare for unregistering " 6969 "HBA's FCF record: rc=%d\n", rc); 6970 return; 6971 } 6972 6973 /* Now, unregister FCF record and reset HBA FCF state */ 6974 rc = lpfc_sli4_unregister_fcf(phba); 6975 if (rc) 6976 return; 6977 /* Set proper HBA FCF states after successful unregister FCF */ 6978 spin_lock_irq(&phba->hbalock); 6979 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6980 spin_unlock_irq(&phba->hbalock); 6981} 6982 6983/** 6984 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6985 * @phba: Pointer to hba context object. 6986 * 6987 * This function check if there are any connected remote port for the FCF and 6988 * if all the devices are disconnected, this function unregister FCFI. 6989 * This function also tries to use another FCF for discovery. 6990 */ 6991void 6992lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6993{ 6994 /* 6995 * If HBA is not running in FIP mode, if HBA does not support 6996 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6997 * registered, do nothing. 6998 */ 6999 spin_lock_irq(&phba->hbalock); 7000 if (!(phba->hba_flag & HBA_FCOE_MODE) || 7001 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 7002 !(phba->hba_flag & HBA_FIP_SUPPORT) || 7003 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 7004 (phba->pport->port_state == LPFC_FLOGI)) { 7005 spin_unlock_irq(&phba->hbalock); 7006 return; 7007 } 7008 spin_unlock_irq(&phba->hbalock); 7009 7010 if (lpfc_fcf_inuse(phba)) 7011 return; 7012 7013 lpfc_unregister_fcf_rescan(phba); 7014} 7015 7016/** 7017 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 7018 * @phba: Pointer to hba context object. 7019 * @buff: Buffer containing the FCF connection table as in the config 7020 * region. 7021 * This function create driver data structure for the FCF connection 7022 * record table read from config region 23. 7023 */ 7024static void 7025lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 7026 uint8_t *buff) 7027{ 7028 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 7029 struct lpfc_fcf_conn_hdr *conn_hdr; 7030 struct lpfc_fcf_conn_rec *conn_rec; 7031 uint32_t record_count; 7032 int i; 7033 7034 /* Free the current connect table */ 7035 list_for_each_entry_safe(conn_entry, next_conn_entry, 7036 &phba->fcf_conn_rec_list, list) { 7037 list_del_init(&conn_entry->list); 7038 kfree(conn_entry); 7039 } 7040 7041 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 7042 record_count = conn_hdr->length * sizeof(uint32_t)/ 7043 sizeof(struct lpfc_fcf_conn_rec); 7044 7045 conn_rec = (struct lpfc_fcf_conn_rec *) 7046 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 7047 7048 for (i = 0; i < record_count; i++) { 7049 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 7050 continue; 7051 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 7052 GFP_KERNEL); 7053 if (!conn_entry) { 7054 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7055 "2566 Failed to allocate connection" 7056 " table entry\n"); 7057 return; 7058 } 7059 7060 memcpy(&conn_entry->conn_rec, &conn_rec[i], 7061 sizeof(struct lpfc_fcf_conn_rec)); 7062 list_add_tail(&conn_entry->list, 7063 &phba->fcf_conn_rec_list); 7064 } 7065 7066 if (!list_empty(&phba->fcf_conn_rec_list)) { 7067 i = 0; 7068 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 7069 list) { 7070 conn_rec = &conn_entry->conn_rec; 7071 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7072 "3345 FCF connection list rec[%02d]: " 7073 "flags:x%04x, vtag:x%04x, " 7074 "fabric_name:x%02x:%02x:%02x:%02x:" 7075 "%02x:%02x:%02x:%02x, " 7076 "switch_name:x%02x:%02x:%02x:%02x:" 7077 "%02x:%02x:%02x:%02x\n", i++, 7078 conn_rec->flags, conn_rec->vlan_tag, 7079 conn_rec->fabric_name[0], 7080 conn_rec->fabric_name[1], 7081 conn_rec->fabric_name[2], 7082 conn_rec->fabric_name[3], 7083 conn_rec->fabric_name[4], 7084 conn_rec->fabric_name[5], 7085 conn_rec->fabric_name[6], 7086 conn_rec->fabric_name[7], 7087 conn_rec->switch_name[0], 7088 conn_rec->switch_name[1], 7089 conn_rec->switch_name[2], 7090 conn_rec->switch_name[3], 7091 conn_rec->switch_name[4], 7092 conn_rec->switch_name[5], 7093 conn_rec->switch_name[6], 7094 conn_rec->switch_name[7]); 7095 } 7096 } 7097} 7098 7099/** 7100 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 7101 * @phba: Pointer to hba context object. 7102 * @buff: Buffer containing the FCoE parameter data structure. 7103 * 7104 * This function update driver data structure with config 7105 * parameters read from config region 23. 7106 */ 7107static void 7108lpfc_read_fcoe_param(struct lpfc_hba *phba, 7109 uint8_t *buff) 7110{ 7111 struct lpfc_fip_param_hdr *fcoe_param_hdr; 7112 struct lpfc_fcoe_params *fcoe_param; 7113 7114 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 7115 buff; 7116 fcoe_param = (struct lpfc_fcoe_params *) 7117 (buff + sizeof(struct lpfc_fip_param_hdr)); 7118 7119 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 7120 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 7121 return; 7122 7123 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 7124 phba->valid_vlan = 1; 7125 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 7126 0xFFF; 7127 } 7128 7129 phba->fc_map[0] = fcoe_param->fc_map[0]; 7130 phba->fc_map[1] = fcoe_param->fc_map[1]; 7131 phba->fc_map[2] = fcoe_param->fc_map[2]; 7132 return; 7133} 7134 7135/** 7136 * lpfc_get_rec_conf23 - Get a record type in config region data. 7137 * @buff: Buffer containing config region 23 data. 7138 * @size: Size of the data buffer. 7139 * @rec_type: Record type to be searched. 7140 * 7141 * This function searches config region data to find the beginning 7142 * of the record specified by record_type. If record found, this 7143 * function return pointer to the record else return NULL. 7144 */ 7145static uint8_t * 7146lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 7147{ 7148 uint32_t offset = 0, rec_length; 7149 7150 if ((buff[0] == LPFC_REGION23_LAST_REC) || 7151 (size < sizeof(uint32_t))) 7152 return NULL; 7153 7154 rec_length = buff[offset + 1]; 7155 7156 /* 7157 * One TLV record has one word header and number of data words 7158 * specified in the rec_length field of the record header. 7159 */ 7160 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 7161 <= size) { 7162 if (buff[offset] == rec_type) 7163 return &buff[offset]; 7164 7165 if (buff[offset] == LPFC_REGION23_LAST_REC) 7166 return NULL; 7167 7168 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 7169 rec_length = buff[offset + 1]; 7170 } 7171 return NULL; 7172} 7173 7174/** 7175 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 7176 * @phba: Pointer to lpfc_hba data structure. 7177 * @buff: Buffer containing config region 23 data. 7178 * @size: Size of the data buffer. 7179 * 7180 * This function parses the FCoE config parameters in config region 23 and 7181 * populate driver data structure with the parameters. 7182 */ 7183void 7184lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 7185 uint8_t *buff, 7186 uint32_t size) 7187{ 7188 uint32_t offset = 0; 7189 uint8_t *rec_ptr; 7190 7191 /* 7192 * If data size is less than 2 words signature and version cannot be 7193 * verified. 7194 */ 7195 if (size < 2*sizeof(uint32_t)) 7196 return; 7197 7198 /* Check the region signature first */ 7199 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 7200 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7201 "2567 Config region 23 has bad signature\n"); 7202 return; 7203 } 7204 7205 offset += 4; 7206 7207 /* Check the data structure version */ 7208 if (buff[offset] != LPFC_REGION23_VERSION) { 7209 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7210 "2568 Config region 23 has bad version\n"); 7211 return; 7212 } 7213 offset += 4; 7214 7215 /* Read FCoE param record */ 7216 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7217 size - offset, FCOE_PARAM_TYPE); 7218 if (rec_ptr) 7219 lpfc_read_fcoe_param(phba, rec_ptr); 7220 7221 /* Read FCF connection table */ 7222 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7223 size - offset, FCOE_CONN_TBL_TYPE); 7224 if (rec_ptr) 7225 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7226 7227} 7228 7229/* 7230 * lpfc_error_lost_link - IO failure from link event or FW reset check. 7231 * 7232 * @vport: Pointer to lpfc_vport data structure. 7233 * @ulp_status: IO completion status. 7234 * @ulp_word4: Reason code for the ulp_status. 7235 * 7236 * This function evaluates the ulp_status and ulp_word4 values 7237 * for specific error values that indicate an internal link fault 7238 * or fw reset event for the completing IO. Callers require this 7239 * common data to decide next steps on the IO. 7240 * 7241 * Return: 7242 * false - No link or reset error occurred. 7243 * true - A link or reset error occurred. 7244 */ 7245bool 7246lpfc_error_lost_link(struct lpfc_vport *vport, u32 ulp_status, u32 ulp_word4) 7247{ 7248 /* Mask off the extra port data to get just the reason code. */ 7249 u32 rsn_code = IOERR_PARAM_MASK & ulp_word4; 7250 7251 if (ulp_status == IOSTAT_LOCAL_REJECT && 7252 (rsn_code == IOERR_SLI_ABORTED || 7253 rsn_code == IOERR_LINK_DOWN || 7254 rsn_code == IOERR_SLI_DOWN)) { 7255 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI | LOG_ELS, 7256 "0408 Report link error true: <x%x:x%x>\n", 7257 ulp_status, ulp_word4); 7258 return true; 7259 } 7260 7261 return false; 7262} 7263