1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 #include <linux/utsname.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_transport_fc.h> 37 #include <scsi/fc/fc_fs.h> 38 39 #include "lpfc_hw4.h" 40 #include "lpfc_hw.h" 41 #include "lpfc_nl.h" 42 #include "lpfc_disc.h" 43 #include "lpfc_sli.h" 44 #include "lpfc_sli4.h" 45 #include "lpfc.h" 46 #include "lpfc_scsi.h" 47 #include "lpfc_nvme.h" 48 #include "lpfc_logmsg.h" 49 #include "lpfc_crtn.h" 50 #include "lpfc_vport.h" 51 #include "lpfc_debugfs.h" 52 53 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 54 static uint8_t lpfcAlpaArray[] = { 55 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 56 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 57 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 58 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 59 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 60 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 61 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 62 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 63 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 64 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 65 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 66 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 67 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 68 }; 69 70 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 71 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 72 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 73 static int lpfc_fcf_inuse(struct lpfc_hba *); 74 static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *); 75 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba); 76 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba); 77 78 static int 79 lpfc_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 */ 92 static int 93 lpfc_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 } 125 126 void 127 lpfc_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 */ 150 void 151 lpfc_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%x refcnt %d 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 * The teardown process cleans up the node via lpfc_drop_node. 179 */ 180 if (vport->load_flag & FC_UNLOADING) { 181 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; 182 ndlp->rport = NULL; 183 184 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; 185 /* clear the NLP_XPT_REGD if the node is not registered 186 * with nvme-fc 187 */ 188 if (ndlp->fc4_xpt_flags == NLP_XPT_REGD) 189 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; 190 191 /* Remove the node reference from remote_port_add now. 192 * The driver will not call remote_port_delete. 193 */ 194 lpfc_nlp_put(ndlp); 195 return; 196 } 197 198 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 199 return; 200 201 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 202 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 203 "6789 rport name %llx != node port name %llx", 204 rport->port_name, 205 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 206 207 evtp = &ndlp->dev_loss_evt; 208 209 if (!list_empty(&evtp->evt_listp)) { 210 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 211 "6790 rport name %llx dev_loss_evt pending\n", 212 rport->port_name); 213 return; 214 } 215 216 spin_lock_irqsave(&ndlp->lock, iflags); 217 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 218 219 /* If there is a PLOGI in progress, and we are in a 220 * NLP_NPR_2B_DISC state, don't turn off the flag. 221 */ 222 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 223 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 224 225 /* 226 * The backend does not expect any more calls associated with this 227 * rport. Remove the association between rport and ndlp. 228 */ 229 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; 230 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; 231 ndlp->rport = NULL; 232 spin_unlock_irqrestore(&ndlp->lock, iflags); 233 234 if (phba->worker_thread) { 235 /* We need to hold the node by incrementing the reference 236 * count until this queued work is done 237 */ 238 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 239 240 spin_lock_irqsave(&phba->hbalock, iflags); 241 if (evtp->evt_arg1) { 242 evtp->evt = LPFC_EVT_DEV_LOSS; 243 list_add_tail(&evtp->evt_listp, &phba->work_list); 244 lpfc_worker_wake_up(phba); 245 } 246 spin_unlock_irqrestore(&phba->hbalock, iflags); 247 } else { 248 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 249 "3188 worker thread is stopped %s x%06x, " 250 " rport x%px flg x%x load_flag x%x refcnt " 251 "%d\n", __func__, ndlp->nlp_DID, 252 ndlp->rport, ndlp->nlp_flag, 253 vport->load_flag, kref_read(&ndlp->kref)); 254 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) { 255 spin_lock_irqsave(&ndlp->lock, iflags); 256 /* Node is in dev loss. No further transaction. */ 257 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 258 spin_unlock_irqrestore(&ndlp->lock, iflags); 259 lpfc_disc_state_machine(vport, ndlp, NULL, 260 NLP_EVT_DEVICE_RM); 261 } 262 263 } 264 265 return; 266 } 267 268 /** 269 * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport 270 * @vport: Pointer to vport context object. 271 * 272 * This function checks for idle VMID entries related to a particular vport. If 273 * found unused/idle, free them accordingly. 274 **/ 275 static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport) 276 { 277 u16 keep; 278 u32 difftime = 0, r, bucket; 279 u64 *lta; 280 int cpu; 281 struct lpfc_vmid *vmp; 282 283 write_lock(&vport->vmid_lock); 284 285 if (!vport->cur_vmid_cnt) 286 goto out; 287 288 /* iterate through the table */ 289 hash_for_each(vport->hash_table, bucket, vmp, hnode) { 290 keep = 0; 291 if (vmp->flag & LPFC_VMID_REGISTERED) { 292 /* check if the particular VMID is in use */ 293 /* for all available per cpu variable */ 294 for_each_possible_cpu(cpu) { 295 /* if last access time is less than timeout */ 296 lta = per_cpu_ptr(vmp->last_io_time, cpu); 297 if (!lta) 298 continue; 299 difftime = (jiffies) - (*lta); 300 if ((vport->vmid_inactivity_timeout * 301 JIFFIES_PER_HR) > difftime) { 302 keep = 1; 303 break; 304 } 305 } 306 307 /* if none of the cpus have been used by the vm, */ 308 /* remove the entry if already registered */ 309 if (!keep) { 310 /* mark the entry for deregistration */ 311 vmp->flag = LPFC_VMID_DE_REGISTER; 312 write_unlock(&vport->vmid_lock); 313 if (vport->vmid_priority_tagging) 314 r = lpfc_vmid_uvem(vport, vmp, false); 315 else 316 r = lpfc_vmid_cmd(vport, 317 SLI_CTAS_DAPP_IDENT, 318 vmp); 319 320 /* decrement number of active vms and mark */ 321 /* entry in slot as free */ 322 write_lock(&vport->vmid_lock); 323 if (!r) { 324 struct lpfc_vmid *ht = vmp; 325 326 vport->cur_vmid_cnt--; 327 ht->flag = LPFC_VMID_SLOT_FREE; 328 free_percpu(ht->last_io_time); 329 ht->last_io_time = NULL; 330 hash_del(&ht->hnode); 331 } 332 } 333 } 334 } 335 out: 336 write_unlock(&vport->vmid_lock); 337 } 338 339 /** 340 * lpfc_check_inactive_vmid - VMID inactivity checker 341 * @phba: Pointer to hba context object. 342 * 343 * This function is called from the worker thread to determine if an entry in 344 * the VMID table can be released since there was no I/O activity seen from that 345 * particular VM for the specified time. When this happens, the entry in the 346 * table is released and also the resources on the switch cleared. 347 **/ 348 349 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba) 350 { 351 struct lpfc_vport *vport; 352 struct lpfc_vport **vports; 353 int i; 354 355 vports = lpfc_create_vport_work_array(phba); 356 if (!vports) 357 return; 358 359 for (i = 0; i <= phba->max_vports; i++) { 360 if ((!vports[i]) && (i == 0)) 361 vport = phba->pport; 362 else 363 vport = vports[i]; 364 if (!vport) 365 break; 366 367 lpfc_check_inactive_vmid_one(vport); 368 } 369 lpfc_destroy_vport_work_array(phba, vports); 370 } 371 372 /** 373 * lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss 374 * @vport: Pointer to vport object. 375 * @ndlp: Pointer to remote node object. 376 * 377 * If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of 378 * node during dev_loss_tmo processing, then this function restores the nlp_put 379 * kref decrement from lpfc_dev_loss_tmo_handler. 380 **/ 381 void 382 lpfc_check_nlp_post_devloss(struct lpfc_vport *vport, 383 struct lpfc_nodelist *ndlp) 384 { 385 unsigned long iflags; 386 387 spin_lock_irqsave(&ndlp->lock, iflags); 388 if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) { 389 ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS; 390 spin_unlock_irqrestore(&ndlp->lock, iflags); 391 lpfc_nlp_get(ndlp); 392 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE, 393 "8438 Devloss timeout reversed on DID x%x " 394 "refcnt %d ndlp %p flag x%x " 395 "port_state = x%x\n", 396 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp, 397 ndlp->nlp_flag, vport->port_state); 398 spin_lock_irqsave(&ndlp->lock, iflags); 399 } 400 spin_unlock_irqrestore(&ndlp->lock, iflags); 401 } 402 403 /** 404 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 405 * @ndlp: Pointer to remote node object. 406 * 407 * This function is called from the worker thread when devloss timeout timer 408 * expires. For SLI4 host, this routine shall return 1 when at lease one 409 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 410 * routine shall return 0 when there is no remote node is still in use of FCF 411 * when devloss timeout happened to this @ndlp. 412 **/ 413 static int 414 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 415 { 416 struct lpfc_vport *vport; 417 struct lpfc_hba *phba; 418 uint8_t *name; 419 int warn_on = 0; 420 int fcf_inuse = 0; 421 bool recovering = false; 422 struct fc_vport *fc_vport = NULL; 423 unsigned long iflags; 424 425 vport = ndlp->vport; 426 name = (uint8_t *)&ndlp->nlp_portname; 427 phba = vport->phba; 428 429 spin_lock_irqsave(&ndlp->lock, iflags); 430 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 431 spin_unlock_irqrestore(&ndlp->lock, iflags); 432 433 if (phba->sli_rev == LPFC_SLI_REV4) 434 fcf_inuse = lpfc_fcf_inuse(phba); 435 436 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 437 "rport devlosstmo:did:x%x type:x%x id:x%x", 438 ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid); 439 440 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 441 "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n", 442 __func__, ndlp->nlp_DID, ndlp->nlp_flag, 443 ndlp->fc4_xpt_flags, kref_read(&ndlp->kref)); 444 445 /* If the driver is recovering the rport, ignore devloss. */ 446 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 447 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 448 "0284 Devloss timeout Ignored on " 449 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 450 "NPort x%x\n", 451 *name, *(name+1), *(name+2), *(name+3), 452 *(name+4), *(name+5), *(name+6), *(name+7), 453 ndlp->nlp_DID); 454 return fcf_inuse; 455 } 456 457 /* Fabric nodes are done. */ 458 if (ndlp->nlp_type & NLP_FABRIC) { 459 spin_lock_irqsave(&ndlp->lock, iflags); 460 /* In massive vport configuration settings, it's possible 461 * dev_loss_tmo fired during node recovery. So, check if 462 * fabric nodes are in discovery states outstanding. 463 */ 464 switch (ndlp->nlp_DID) { 465 case Fabric_DID: 466 fc_vport = vport->fc_vport; 467 if (fc_vport && 468 fc_vport->vport_state == FC_VPORT_INITIALIZING) 469 recovering = true; 470 break; 471 case Fabric_Cntl_DID: 472 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 473 recovering = true; 474 break; 475 case FDMI_DID: 476 fallthrough; 477 case NameServer_DID: 478 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 479 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) 480 recovering = true; 481 break; 482 } 483 spin_unlock_irqrestore(&ndlp->lock, iflags); 484 485 /* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing 486 * the following lpfc_nlp_put is necessary after fabric node is 487 * recovered. 488 */ 489 if (recovering) { 490 lpfc_printf_vlog(vport, KERN_INFO, 491 LOG_DISCOVERY | LOG_NODE, 492 "8436 Devloss timeout marked on " 493 "DID x%x refcnt %d ndlp %p " 494 "flag x%x port_state = x%x\n", 495 ndlp->nlp_DID, kref_read(&ndlp->kref), 496 ndlp, ndlp->nlp_flag, 497 vport->port_state); 498 spin_lock_irqsave(&ndlp->lock, iflags); 499 ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS; 500 spin_unlock_irqrestore(&ndlp->lock, iflags); 501 } else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 502 /* Fabric node fully recovered before this dev_loss_tmo 503 * queue work is processed. Thus, ignore the 504 * dev_loss_tmo event. 505 */ 506 lpfc_printf_vlog(vport, KERN_INFO, 507 LOG_DISCOVERY | LOG_NODE, 508 "8437 Devloss timeout ignored on " 509 "DID x%x refcnt %d ndlp %p " 510 "flag x%x port_state = x%x\n", 511 ndlp->nlp_DID, kref_read(&ndlp->kref), 512 ndlp, ndlp->nlp_flag, 513 vport->port_state); 514 return fcf_inuse; 515 } 516 517 lpfc_nlp_put(ndlp); 518 return fcf_inuse; 519 } 520 521 if (ndlp->nlp_sid != NLP_NO_SID) { 522 warn_on = 1; 523 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 524 } 525 526 if (warn_on) { 527 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 528 "0203 Devloss timeout on " 529 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 530 "NPort x%06x Data: x%x x%x x%x refcnt %d\n", 531 *name, *(name+1), *(name+2), *(name+3), 532 *(name+4), *(name+5), *(name+6), *(name+7), 533 ndlp->nlp_DID, ndlp->nlp_flag, 534 ndlp->nlp_state, ndlp->nlp_rpi, 535 kref_read(&ndlp->kref)); 536 } else { 537 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT, 538 "0204 Devloss timeout on " 539 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 540 "NPort x%06x Data: x%x x%x x%x\n", 541 *name, *(name+1), *(name+2), *(name+3), 542 *(name+4), *(name+5), *(name+6), *(name+7), 543 ndlp->nlp_DID, ndlp->nlp_flag, 544 ndlp->nlp_state, ndlp->nlp_rpi); 545 } 546 547 /* If we are devloss, but we are in the process of rediscovering the 548 * ndlp, don't issue a NLP_EVT_DEVICE_RM event. 549 */ 550 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 551 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) { 552 return fcf_inuse; 553 } 554 555 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) 556 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 557 558 return fcf_inuse; 559 } 560 561 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba) 562 { 563 struct lpfc_vport *vport; 564 struct lpfc_vport **vports; 565 int i; 566 567 vports = lpfc_create_vport_work_array(phba); 568 if (!vports) 569 return; 570 571 for (i = 0; i <= phba->max_vports; i++) { 572 if ((!vports[i]) && (i == 0)) 573 vport = phba->pport; 574 else 575 vport = vports[i]; 576 if (!vport) 577 break; 578 579 if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) { 580 if (!lpfc_issue_els_qfpa(vport)) 581 vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA; 582 } 583 } 584 lpfc_destroy_vport_work_array(phba, vports); 585 } 586 587 /** 588 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 589 * @phba: Pointer to hba context object. 590 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 591 * @nlp_did: remote node identifer with devloss timeout. 592 * 593 * This function is called from the worker thread after invoking devloss 594 * timeout handler and releasing the reference count for the ndlp with 595 * which the devloss timeout was handled for SLI4 host. For the devloss 596 * timeout of the last remote node which had been in use of FCF, when this 597 * routine is invoked, it shall be guaranteed that none of the remote are 598 * in-use of FCF. When devloss timeout to the last remote using the FCF, 599 * if the FIP engine is neither in FCF table scan process nor roundrobin 600 * failover process, the in-use FCF shall be unregistered. If the FIP 601 * engine is in FCF discovery process, the devloss timeout state shall 602 * be set for either the FCF table scan process or roundrobin failover 603 * process to unregister the in-use FCF. 604 **/ 605 static void 606 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 607 uint32_t nlp_did) 608 { 609 /* If devloss timeout happened to a remote node when FCF had no 610 * longer been in-use, do nothing. 611 */ 612 if (!fcf_inuse) 613 return; 614 615 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 616 spin_lock_irq(&phba->hbalock); 617 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 618 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 619 spin_unlock_irq(&phba->hbalock); 620 return; 621 } 622 phba->hba_flag |= HBA_DEVLOSS_TMO; 623 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 624 "2847 Last remote node (x%x) using " 625 "FCF devloss tmo\n", nlp_did); 626 } 627 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 628 spin_unlock_irq(&phba->hbalock); 629 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 630 "2868 Devloss tmo to FCF rediscovery " 631 "in progress\n"); 632 return; 633 } 634 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 635 spin_unlock_irq(&phba->hbalock); 636 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 637 "2869 Devloss tmo to idle FIP engine, " 638 "unreg in-use FCF and rescan.\n"); 639 /* Unregister in-use FCF and rescan */ 640 lpfc_unregister_fcf_rescan(phba); 641 return; 642 } 643 spin_unlock_irq(&phba->hbalock); 644 if (phba->hba_flag & FCF_TS_INPROG) 645 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 646 "2870 FCF table scan in progress\n"); 647 if (phba->hba_flag & FCF_RR_INPROG) 648 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 649 "2871 FLOGI roundrobin FCF failover " 650 "in progress\n"); 651 } 652 lpfc_unregister_unused_fcf(phba); 653 } 654 655 /** 656 * lpfc_alloc_fast_evt - Allocates data structure for posting event 657 * @phba: Pointer to hba context object. 658 * 659 * This function is called from the functions which need to post 660 * events from interrupt context. This function allocates data 661 * structure required for posting event. It also keeps track of 662 * number of events pending and prevent event storm when there are 663 * too many events. 664 **/ 665 struct lpfc_fast_path_event * 666 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 667 struct lpfc_fast_path_event *ret; 668 669 /* If there are lot of fast event do not exhaust memory due to this */ 670 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 671 return NULL; 672 673 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 674 GFP_ATOMIC); 675 if (ret) { 676 atomic_inc(&phba->fast_event_count); 677 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 678 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 679 } 680 return ret; 681 } 682 683 /** 684 * lpfc_free_fast_evt - Frees event data structure 685 * @phba: Pointer to hba context object. 686 * @evt: Event object which need to be freed. 687 * 688 * This function frees the data structure required for posting 689 * events. 690 **/ 691 void 692 lpfc_free_fast_evt(struct lpfc_hba *phba, 693 struct lpfc_fast_path_event *evt) { 694 695 atomic_dec(&phba->fast_event_count); 696 kfree(evt); 697 } 698 699 /** 700 * lpfc_send_fastpath_evt - Posts events generated from fast path 701 * @phba: Pointer to hba context object. 702 * @evtp: Event data structure. 703 * 704 * This function is called from worker thread, when the interrupt 705 * context need to post an event. This function posts the event 706 * to fc transport netlink interface. 707 **/ 708 static void 709 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 710 struct lpfc_work_evt *evtp) 711 { 712 unsigned long evt_category, evt_sub_category; 713 struct lpfc_fast_path_event *fast_evt_data; 714 char *evt_data; 715 uint32_t evt_data_size; 716 struct Scsi_Host *shost; 717 718 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 719 work_evt); 720 721 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 722 evt_sub_category = (unsigned long) fast_evt_data->un. 723 fabric_evt.subcategory; 724 shost = lpfc_shost_from_vport(fast_evt_data->vport); 725 if (evt_category == FC_REG_FABRIC_EVENT) { 726 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 727 evt_data = (char *) &fast_evt_data->un.read_check_error; 728 evt_data_size = sizeof(fast_evt_data->un. 729 read_check_error); 730 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 731 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 732 evt_data = (char *) &fast_evt_data->un.fabric_evt; 733 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 734 } else { 735 lpfc_free_fast_evt(phba, fast_evt_data); 736 return; 737 } 738 } else if (evt_category == FC_REG_SCSI_EVENT) { 739 switch (evt_sub_category) { 740 case LPFC_EVENT_QFULL: 741 case LPFC_EVENT_DEVBSY: 742 evt_data = (char *) &fast_evt_data->un.scsi_evt; 743 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 744 break; 745 case LPFC_EVENT_CHECK_COND: 746 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 747 evt_data_size = sizeof(fast_evt_data->un. 748 check_cond_evt); 749 break; 750 case LPFC_EVENT_VARQUEDEPTH: 751 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 752 evt_data_size = sizeof(fast_evt_data->un. 753 queue_depth_evt); 754 break; 755 default: 756 lpfc_free_fast_evt(phba, fast_evt_data); 757 return; 758 } 759 } else { 760 lpfc_free_fast_evt(phba, fast_evt_data); 761 return; 762 } 763 764 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 765 fc_host_post_vendor_event(shost, 766 fc_get_event_number(), 767 evt_data_size, 768 evt_data, 769 LPFC_NL_VENDOR_ID); 770 771 lpfc_free_fast_evt(phba, fast_evt_data); 772 return; 773 } 774 775 static void 776 lpfc_work_list_done(struct lpfc_hba *phba) 777 { 778 struct lpfc_work_evt *evtp = NULL; 779 struct lpfc_nodelist *ndlp; 780 int free_evt; 781 int fcf_inuse; 782 uint32_t nlp_did; 783 bool hba_pci_err; 784 785 spin_lock_irq(&phba->hbalock); 786 while (!list_empty(&phba->work_list)) { 787 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 788 evt_listp); 789 spin_unlock_irq(&phba->hbalock); 790 hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags); 791 free_evt = 1; 792 switch (evtp->evt) { 793 case LPFC_EVT_ELS_RETRY: 794 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 795 if (!hba_pci_err) { 796 lpfc_els_retry_delay_handler(ndlp); 797 free_evt = 0; /* evt is part of ndlp */ 798 } 799 /* decrement the node reference count held 800 * for this queued work 801 */ 802 lpfc_nlp_put(ndlp); 803 break; 804 case LPFC_EVT_DEV_LOSS: 805 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 806 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 807 free_evt = 0; 808 /* decrement the node reference count held for 809 * this queued work 810 */ 811 nlp_did = ndlp->nlp_DID; 812 lpfc_nlp_put(ndlp); 813 if (phba->sli_rev == LPFC_SLI_REV4) 814 lpfc_sli4_post_dev_loss_tmo_handler(phba, 815 fcf_inuse, 816 nlp_did); 817 break; 818 case LPFC_EVT_RECOVER_PORT: 819 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 820 if (!hba_pci_err) { 821 lpfc_sli_abts_recover_port(ndlp->vport, ndlp); 822 free_evt = 0; 823 } 824 /* decrement the node reference count held for 825 * this queued work 826 */ 827 lpfc_nlp_put(ndlp); 828 break; 829 case LPFC_EVT_ONLINE: 830 if (phba->link_state < LPFC_LINK_DOWN) 831 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 832 else 833 *(int *) (evtp->evt_arg1) = 0; 834 complete((struct completion *)(evtp->evt_arg2)); 835 break; 836 case LPFC_EVT_OFFLINE_PREP: 837 if (phba->link_state >= LPFC_LINK_DOWN) 838 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 839 *(int *)(evtp->evt_arg1) = 0; 840 complete((struct completion *)(evtp->evt_arg2)); 841 break; 842 case LPFC_EVT_OFFLINE: 843 lpfc_offline(phba); 844 lpfc_sli_brdrestart(phba); 845 *(int *)(evtp->evt_arg1) = 846 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 847 lpfc_unblock_mgmt_io(phba); 848 complete((struct completion *)(evtp->evt_arg2)); 849 break; 850 case LPFC_EVT_WARM_START: 851 lpfc_offline(phba); 852 lpfc_reset_barrier(phba); 853 lpfc_sli_brdreset(phba); 854 lpfc_hba_down_post(phba); 855 *(int *)(evtp->evt_arg1) = 856 lpfc_sli_brdready(phba, HS_MBRDY); 857 lpfc_unblock_mgmt_io(phba); 858 complete((struct completion *)(evtp->evt_arg2)); 859 break; 860 case LPFC_EVT_KILL: 861 lpfc_offline(phba); 862 *(int *)(evtp->evt_arg1) 863 = (phba->pport->stopped) 864 ? 0 : lpfc_sli_brdkill(phba); 865 lpfc_unblock_mgmt_io(phba); 866 complete((struct completion *)(evtp->evt_arg2)); 867 break; 868 case LPFC_EVT_FASTPATH_MGMT_EVT: 869 lpfc_send_fastpath_evt(phba, evtp); 870 free_evt = 0; 871 break; 872 case LPFC_EVT_RESET_HBA: 873 if (!(phba->pport->load_flag & FC_UNLOADING)) 874 lpfc_reset_hba(phba); 875 break; 876 } 877 if (free_evt) 878 kfree(evtp); 879 spin_lock_irq(&phba->hbalock); 880 } 881 spin_unlock_irq(&phba->hbalock); 882 883 } 884 885 static void 886 lpfc_work_done(struct lpfc_hba *phba) 887 { 888 struct lpfc_sli_ring *pring; 889 uint32_t ha_copy, status, control, work_port_events; 890 struct lpfc_vport **vports; 891 struct lpfc_vport *vport; 892 int i; 893 bool hba_pci_err; 894 895 hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags); 896 spin_lock_irq(&phba->hbalock); 897 ha_copy = phba->work_ha; 898 phba->work_ha = 0; 899 spin_unlock_irq(&phba->hbalock); 900 if (hba_pci_err) 901 ha_copy = 0; 902 903 /* First, try to post the next mailbox command to SLI4 device */ 904 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC && !hba_pci_err) 905 lpfc_sli4_post_async_mbox(phba); 906 907 if (ha_copy & HA_ERATT) { 908 /* Handle the error attention event */ 909 lpfc_handle_eratt(phba); 910 911 if (phba->fw_dump_cmpl) { 912 complete(phba->fw_dump_cmpl); 913 phba->fw_dump_cmpl = NULL; 914 } 915 } 916 917 if (ha_copy & HA_MBATT) 918 lpfc_sli_handle_mb_event(phba); 919 920 if (ha_copy & HA_LATT) 921 lpfc_handle_latt(phba); 922 923 /* Handle VMID Events */ 924 if (lpfc_is_vmid_enabled(phba) && !hba_pci_err) { 925 if (phba->pport->work_port_events & 926 WORKER_CHECK_VMID_ISSUE_QFPA) { 927 lpfc_check_vmid_qfpa_issue(phba); 928 phba->pport->work_port_events &= 929 ~WORKER_CHECK_VMID_ISSUE_QFPA; 930 } 931 if (phba->pport->work_port_events & 932 WORKER_CHECK_INACTIVE_VMID) { 933 lpfc_check_inactive_vmid(phba); 934 phba->pport->work_port_events &= 935 ~WORKER_CHECK_INACTIVE_VMID; 936 } 937 } 938 939 /* Process SLI4 events */ 940 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 941 if (phba->hba_flag & HBA_RRQ_ACTIVE) 942 lpfc_handle_rrq_active(phba); 943 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 944 lpfc_sli4_els_xri_abort_event_proc(phba); 945 if (phba->hba_flag & ASYNC_EVENT) 946 lpfc_sli4_async_event_proc(phba); 947 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 948 spin_lock_irq(&phba->hbalock); 949 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 950 spin_unlock_irq(&phba->hbalock); 951 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 952 } 953 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 954 lpfc_sli4_fcf_redisc_event_proc(phba); 955 } 956 957 vports = lpfc_create_vport_work_array(phba); 958 if (vports != NULL) 959 for (i = 0; i <= phba->max_vports; i++) { 960 /* 961 * We could have no vports in array if unloading, so if 962 * this happens then just use the pport 963 */ 964 if (vports[i] == NULL && i == 0) 965 vport = phba->pport; 966 else 967 vport = vports[i]; 968 if (vport == NULL) 969 break; 970 spin_lock_irq(&vport->work_port_lock); 971 work_port_events = vport->work_port_events; 972 vport->work_port_events &= ~work_port_events; 973 spin_unlock_irq(&vport->work_port_lock); 974 if (hba_pci_err) 975 continue; 976 if (work_port_events & WORKER_DISC_TMO) 977 lpfc_disc_timeout_handler(vport); 978 if (work_port_events & WORKER_ELS_TMO) 979 lpfc_els_timeout_handler(vport); 980 if (work_port_events & WORKER_HB_TMO) 981 lpfc_hb_timeout_handler(phba); 982 if (work_port_events & WORKER_MBOX_TMO) 983 lpfc_mbox_timeout_handler(phba); 984 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 985 lpfc_unblock_fabric_iocbs(phba); 986 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 987 lpfc_ramp_down_queue_handler(phba); 988 if (work_port_events & WORKER_DELAYED_DISC_TMO) 989 lpfc_delayed_disc_timeout_handler(vport); 990 } 991 lpfc_destroy_vport_work_array(phba, vports); 992 993 pring = lpfc_phba_elsring(phba); 994 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 995 status >>= (4*LPFC_ELS_RING); 996 if (pring && (status & HA_RXMASK || 997 pring->flag & LPFC_DEFERRED_RING_EVENT || 998 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 999 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 1000 pring->flag |= LPFC_DEFERRED_RING_EVENT; 1001 /* Preserve legacy behavior. */ 1002 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 1003 set_bit(LPFC_DATA_READY, &phba->data_flags); 1004 } else { 1005 /* Driver could have abort request completed in queue 1006 * when link goes down. Allow for this transition. 1007 */ 1008 if (phba->link_state >= LPFC_LINK_DOWN || 1009 phba->link_flag & LS_MDS_LOOPBACK) { 1010 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 1011 lpfc_sli_handle_slow_ring_event(phba, pring, 1012 (status & 1013 HA_RXMASK)); 1014 } 1015 } 1016 if (phba->sli_rev == LPFC_SLI_REV4) 1017 lpfc_drain_txq(phba); 1018 /* 1019 * Turn on Ring interrupts 1020 */ 1021 if (phba->sli_rev <= LPFC_SLI_REV3) { 1022 spin_lock_irq(&phba->hbalock); 1023 control = readl(phba->HCregaddr); 1024 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 1025 lpfc_debugfs_slow_ring_trc(phba, 1026 "WRK Enable ring: cntl:x%x hacopy:x%x", 1027 control, ha_copy, 0); 1028 1029 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 1030 writel(control, phba->HCregaddr); 1031 readl(phba->HCregaddr); /* flush */ 1032 } else { 1033 lpfc_debugfs_slow_ring_trc(phba, 1034 "WRK Ring ok: cntl:x%x hacopy:x%x", 1035 control, ha_copy, 0); 1036 } 1037 spin_unlock_irq(&phba->hbalock); 1038 } 1039 } 1040 lpfc_work_list_done(phba); 1041 } 1042 1043 int 1044 lpfc_do_work(void *p) 1045 { 1046 struct lpfc_hba *phba = p; 1047 int rc; 1048 1049 set_user_nice(current, MIN_NICE); 1050 current->flags |= PF_NOFREEZE; 1051 phba->data_flags = 0; 1052 1053 while (!kthread_should_stop()) { 1054 /* wait and check worker queue activities */ 1055 rc = wait_event_interruptible(phba->work_waitq, 1056 (test_and_clear_bit(LPFC_DATA_READY, 1057 &phba->data_flags) 1058 || kthread_should_stop())); 1059 /* Signal wakeup shall terminate the worker thread */ 1060 if (rc) { 1061 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 1062 "0433 Wakeup on signal: rc=x%x\n", rc); 1063 break; 1064 } 1065 1066 /* Attend pending lpfc data processing */ 1067 lpfc_work_done(phba); 1068 } 1069 phba->worker_thread = NULL; 1070 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 1071 "0432 Worker thread stopped.\n"); 1072 return 0; 1073 } 1074 1075 /* 1076 * This is only called to handle FC worker events. Since this a rare 1077 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 1078 * embedding it in the IOCB. 1079 */ 1080 int 1081 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 1082 uint32_t evt) 1083 { 1084 struct lpfc_work_evt *evtp; 1085 unsigned long flags; 1086 1087 /* 1088 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 1089 * be queued to worker thread for processing 1090 */ 1091 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 1092 if (!evtp) 1093 return 0; 1094 1095 evtp->evt_arg1 = arg1; 1096 evtp->evt_arg2 = arg2; 1097 evtp->evt = evt; 1098 1099 spin_lock_irqsave(&phba->hbalock, flags); 1100 list_add_tail(&evtp->evt_listp, &phba->work_list); 1101 spin_unlock_irqrestore(&phba->hbalock, flags); 1102 1103 lpfc_worker_wake_up(phba); 1104 1105 return 1; 1106 } 1107 1108 void 1109 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 1110 { 1111 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1112 struct lpfc_hba *phba = vport->phba; 1113 struct lpfc_nodelist *ndlp, *next_ndlp; 1114 1115 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1116 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 1117 /* It's possible the FLOGI to the fabric node never 1118 * successfully completed and never registered with the 1119 * transport. In this case there is no way to clean up 1120 * the node. 1121 */ 1122 if (ndlp->nlp_DID == Fabric_DID) { 1123 if (ndlp->nlp_prev_state == 1124 NLP_STE_UNUSED_NODE && 1125 !ndlp->fc4_xpt_flags) 1126 lpfc_nlp_put(ndlp); 1127 } 1128 continue; 1129 } 1130 1131 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 1132 ((vport->port_type == LPFC_NPIV_PORT) && 1133 ((ndlp->nlp_DID == NameServer_DID) || 1134 (ndlp->nlp_DID == FDMI_DID) || 1135 (ndlp->nlp_DID == Fabric_Cntl_DID)))) 1136 lpfc_unreg_rpi(vport, ndlp); 1137 1138 /* Leave Fabric nodes alone on link down */ 1139 if ((phba->sli_rev < LPFC_SLI_REV4) && 1140 (!remove && ndlp->nlp_type & NLP_FABRIC)) 1141 continue; 1142 1143 /* Notify transport of connectivity loss to trigger cleanup. */ 1144 if (phba->nvmet_support && 1145 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 1146 lpfc_nvmet_invalidate_host(phba, ndlp); 1147 1148 lpfc_disc_state_machine(vport, ndlp, NULL, 1149 remove 1150 ? NLP_EVT_DEVICE_RM 1151 : NLP_EVT_DEVICE_RECOVERY); 1152 } 1153 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 1154 if (phba->sli_rev == LPFC_SLI_REV4) 1155 lpfc_sli4_unreg_all_rpis(vport); 1156 lpfc_mbx_unreg_vpi(vport); 1157 spin_lock_irq(shost->host_lock); 1158 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1159 spin_unlock_irq(shost->host_lock); 1160 } 1161 } 1162 1163 void 1164 lpfc_port_link_failure(struct lpfc_vport *vport) 1165 { 1166 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 1167 1168 /* Cleanup any outstanding received buffers */ 1169 lpfc_cleanup_rcv_buffers(vport); 1170 1171 /* Cleanup any outstanding RSCN activity */ 1172 lpfc_els_flush_rscn(vport); 1173 1174 /* Cleanup any outstanding ELS commands */ 1175 lpfc_els_flush_cmd(vport); 1176 1177 lpfc_cleanup_rpis(vport, 0); 1178 1179 /* Turn off discovery timer if its running */ 1180 lpfc_can_disctmo(vport); 1181 } 1182 1183 void 1184 lpfc_linkdown_port(struct lpfc_vport *vport) 1185 { 1186 struct lpfc_hba *phba = vport->phba; 1187 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1188 1189 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1190 fc_host_post_event(shost, fc_get_event_number(), 1191 FCH_EVT_LINKDOWN, 0); 1192 1193 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1194 "Link Down: state:x%x rtry:x%x flg:x%x", 1195 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 1196 1197 lpfc_port_link_failure(vport); 1198 1199 /* Stop delayed Nport discovery */ 1200 spin_lock_irq(shost->host_lock); 1201 vport->fc_flag &= ~FC_DISC_DELAYED; 1202 spin_unlock_irq(shost->host_lock); 1203 del_timer_sync(&vport->delayed_disc_tmo); 1204 1205 if (phba->sli_rev == LPFC_SLI_REV4 && 1206 vport->port_type == LPFC_PHYSICAL_PORT && 1207 phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) { 1208 /* Assume success on link up */ 1209 phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC; 1210 } 1211 } 1212 1213 int 1214 lpfc_linkdown(struct lpfc_hba *phba) 1215 { 1216 struct lpfc_vport *vport = phba->pport; 1217 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1218 struct lpfc_vport **vports; 1219 LPFC_MBOXQ_t *mb; 1220 int i; 1221 int offline; 1222 1223 if (phba->link_state == LPFC_LINK_DOWN) 1224 return 0; 1225 1226 /* Block all SCSI stack I/Os */ 1227 lpfc_scsi_dev_block(phba); 1228 offline = pci_channel_offline(phba->pcidev); 1229 1230 phba->defer_flogi_acc_flag = false; 1231 1232 /* Clear external loopback plug detected flag */ 1233 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; 1234 1235 spin_lock_irq(&phba->hbalock); 1236 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1237 spin_unlock_irq(&phba->hbalock); 1238 if (phba->link_state > LPFC_LINK_DOWN) { 1239 phba->link_state = LPFC_LINK_DOWN; 1240 if (phba->sli4_hba.conf_trunk) { 1241 phba->trunk_link.link0.state = 0; 1242 phba->trunk_link.link1.state = 0; 1243 phba->trunk_link.link2.state = 0; 1244 phba->trunk_link.link3.state = 0; 1245 phba->sli4_hba.link_state.logical_speed = 1246 LPFC_LINK_SPEED_UNKNOWN; 1247 } 1248 spin_lock_irq(shost->host_lock); 1249 phba->pport->fc_flag &= ~FC_LBIT; 1250 spin_unlock_irq(shost->host_lock); 1251 } 1252 vports = lpfc_create_vport_work_array(phba); 1253 if (vports != NULL) { 1254 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1255 /* Issue a LINK DOWN event to all nodes */ 1256 lpfc_linkdown_port(vports[i]); 1257 1258 vports[i]->fc_myDID = 0; 1259 1260 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1261 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1262 if (phba->nvmet_support) 1263 lpfc_nvmet_update_targetport(phba); 1264 else 1265 lpfc_nvme_update_localport(vports[i]); 1266 } 1267 } 1268 } 1269 lpfc_destroy_vport_work_array(phba, vports); 1270 1271 /* Clean up any SLI3 firmware default rpi's */ 1272 if (phba->sli_rev > LPFC_SLI_REV3 || offline) 1273 goto skip_unreg_did; 1274 1275 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1276 if (mb) { 1277 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 1278 mb->vport = vport; 1279 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1280 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1281 == MBX_NOT_FINISHED) { 1282 mempool_free(mb, phba->mbox_mem_pool); 1283 } 1284 } 1285 1286 skip_unreg_did: 1287 /* Setup myDID for link up if we are in pt2pt mode */ 1288 if (phba->pport->fc_flag & FC_PT2PT) { 1289 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1290 if (mb) { 1291 lpfc_config_link(phba, mb); 1292 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1293 mb->vport = vport; 1294 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1295 == MBX_NOT_FINISHED) { 1296 mempool_free(mb, phba->mbox_mem_pool); 1297 } 1298 } 1299 spin_lock_irq(shost->host_lock); 1300 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 1301 phba->pport->rcv_flogi_cnt = 0; 1302 spin_unlock_irq(shost->host_lock); 1303 } 1304 return 0; 1305 } 1306 1307 static void 1308 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 1309 { 1310 struct lpfc_nodelist *ndlp; 1311 1312 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 1313 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 1314 1315 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1316 continue; 1317 if (ndlp->nlp_type & NLP_FABRIC) { 1318 /* On Linkup its safe to clean up the ndlp 1319 * from Fabric connections. 1320 */ 1321 if (ndlp->nlp_DID != Fabric_DID) 1322 lpfc_unreg_rpi(vport, ndlp); 1323 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1324 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 1325 /* Fail outstanding IO now since device is 1326 * marked for PLOGI. 1327 */ 1328 lpfc_unreg_rpi(vport, ndlp); 1329 } 1330 } 1331 } 1332 1333 static void 1334 lpfc_linkup_port(struct lpfc_vport *vport) 1335 { 1336 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1337 struct lpfc_hba *phba = vport->phba; 1338 1339 if ((vport->load_flag & FC_UNLOADING) != 0) 1340 return; 1341 1342 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1343 "Link Up: top:x%x speed:x%x flg:x%x", 1344 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1345 1346 /* If NPIV is not enabled, only bring the physical port up */ 1347 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1348 (vport != phba->pport)) 1349 return; 1350 1351 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1352 fc_host_post_event(shost, fc_get_event_number(), 1353 FCH_EVT_LINKUP, 0); 1354 1355 spin_lock_irq(shost->host_lock); 1356 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1357 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1358 vport->fc_flag |= FC_NDISC_ACTIVE; 1359 vport->fc_ns_retry = 0; 1360 spin_unlock_irq(shost->host_lock); 1361 lpfc_setup_fdmi_mask(vport); 1362 1363 lpfc_linkup_cleanup_nodes(vport); 1364 } 1365 1366 static int 1367 lpfc_linkup(struct lpfc_hba *phba) 1368 { 1369 struct lpfc_vport **vports; 1370 int i; 1371 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1372 1373 phba->link_state = LPFC_LINK_UP; 1374 1375 /* Unblock fabric iocbs if they are blocked */ 1376 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1377 del_timer_sync(&phba->fabric_block_timer); 1378 1379 vports = lpfc_create_vport_work_array(phba); 1380 if (vports != NULL) 1381 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1382 lpfc_linkup_port(vports[i]); 1383 lpfc_destroy_vport_work_array(phba, vports); 1384 1385 /* Clear the pport flogi counter in case the link down was 1386 * absorbed without an ACQE. No lock here - in worker thread 1387 * and discovery is synchronized. 1388 */ 1389 spin_lock_irq(shost->host_lock); 1390 phba->pport->rcv_flogi_cnt = 0; 1391 spin_unlock_irq(shost->host_lock); 1392 1393 /* reinitialize initial HBA flag */ 1394 phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_RHBA_CMPL); 1395 phba->defer_flogi_acc_flag = false; 1396 1397 return 0; 1398 } 1399 1400 /* 1401 * This routine handles processing a CLEAR_LA mailbox 1402 * command upon completion. It is setup in the LPFC_MBOXQ 1403 * as the completion routine when the command is 1404 * handed off to the SLI layer. SLI3 only. 1405 */ 1406 static void 1407 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1408 { 1409 struct lpfc_vport *vport = pmb->vport; 1410 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1411 struct lpfc_sli *psli = &phba->sli; 1412 MAILBOX_t *mb = &pmb->u.mb; 1413 uint32_t control; 1414 1415 /* Since we don't do discovery right now, turn these off here */ 1416 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1417 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1418 1419 /* Check for error */ 1420 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1421 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1422 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1423 "0320 CLEAR_LA mbxStatus error x%x hba " 1424 "state x%x\n", 1425 mb->mbxStatus, vport->port_state); 1426 phba->link_state = LPFC_HBA_ERROR; 1427 goto out; 1428 } 1429 1430 if (vport->port_type == LPFC_PHYSICAL_PORT) 1431 phba->link_state = LPFC_HBA_READY; 1432 1433 spin_lock_irq(&phba->hbalock); 1434 psli->sli_flag |= LPFC_PROCESS_LA; 1435 control = readl(phba->HCregaddr); 1436 control |= HC_LAINT_ENA; 1437 writel(control, phba->HCregaddr); 1438 readl(phba->HCregaddr); /* flush */ 1439 spin_unlock_irq(&phba->hbalock); 1440 mempool_free(pmb, phba->mbox_mem_pool); 1441 return; 1442 1443 out: 1444 /* Device Discovery completes */ 1445 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1446 "0225 Device Discovery completes\n"); 1447 mempool_free(pmb, phba->mbox_mem_pool); 1448 1449 spin_lock_irq(shost->host_lock); 1450 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1451 spin_unlock_irq(shost->host_lock); 1452 1453 lpfc_can_disctmo(vport); 1454 1455 /* turn on Link Attention interrupts */ 1456 1457 spin_lock_irq(&phba->hbalock); 1458 psli->sli_flag |= LPFC_PROCESS_LA; 1459 control = readl(phba->HCregaddr); 1460 control |= HC_LAINT_ENA; 1461 writel(control, phba->HCregaddr); 1462 readl(phba->HCregaddr); /* flush */ 1463 spin_unlock_irq(&phba->hbalock); 1464 1465 return; 1466 } 1467 1468 void 1469 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1470 { 1471 struct lpfc_vport *vport = pmb->vport; 1472 LPFC_MBOXQ_t *sparam_mb; 1473 u16 status = pmb->u.mb.mbxStatus; 1474 int rc; 1475 1476 mempool_free(pmb, phba->mbox_mem_pool); 1477 1478 if (status) 1479 goto out; 1480 1481 /* don't perform discovery for SLI4 loopback diagnostic test */ 1482 if ((phba->sli_rev == LPFC_SLI_REV4) && 1483 !(phba->hba_flag & HBA_FCOE_MODE) && 1484 (phba->link_flag & LS_LOOPBACK_MODE)) 1485 return; 1486 1487 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1488 vport->fc_flag & FC_PUBLIC_LOOP && 1489 !(vport->fc_flag & FC_LBIT)) { 1490 /* Need to wait for FAN - use discovery timer 1491 * for timeout. port_state is identically 1492 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1493 */ 1494 lpfc_set_disctmo(vport); 1495 return; 1496 } 1497 1498 /* Start discovery by sending a FLOGI. port_state is identically 1499 * LPFC_FLOGI while waiting for FLOGI cmpl. 1500 */ 1501 if (vport->port_state != LPFC_FLOGI) { 1502 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if 1503 * bb-credit recovery is in place. 1504 */ 1505 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 1506 !(phba->link_flag & LS_LOOPBACK_MODE)) { 1507 sparam_mb = mempool_alloc(phba->mbox_mem_pool, 1508 GFP_KERNEL); 1509 if (!sparam_mb) 1510 goto sparam_out; 1511 1512 rc = lpfc_read_sparam(phba, sparam_mb, 0); 1513 if (rc) { 1514 mempool_free(sparam_mb, phba->mbox_mem_pool); 1515 goto sparam_out; 1516 } 1517 sparam_mb->vport = vport; 1518 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1519 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT); 1520 if (rc == MBX_NOT_FINISHED) { 1521 lpfc_mbox_rsrc_cleanup(phba, sparam_mb, 1522 MBOX_THD_UNLOCKED); 1523 goto sparam_out; 1524 } 1525 1526 phba->hba_flag |= HBA_DEFER_FLOGI; 1527 } else { 1528 lpfc_initial_flogi(vport); 1529 } 1530 } else { 1531 if (vport->fc_flag & FC_PT2PT) 1532 lpfc_disc_start(vport); 1533 } 1534 return; 1535 1536 out: 1537 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1538 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", 1539 status, vport->port_state); 1540 1541 sparam_out: 1542 lpfc_linkdown(phba); 1543 1544 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1545 "0200 CONFIG_LINK bad hba state x%x\n", 1546 vport->port_state); 1547 1548 lpfc_issue_clear_la(phba, vport); 1549 return; 1550 } 1551 1552 /** 1553 * lpfc_sli4_clear_fcf_rr_bmask 1554 * @phba: pointer to the struct lpfc_hba for this port. 1555 * This fucnction resets the round robin bit mask and clears the 1556 * fcf priority list. The list deletions are done while holding the 1557 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1558 * from the lpfc_fcf_pri record. 1559 **/ 1560 void 1561 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1562 { 1563 struct lpfc_fcf_pri *fcf_pri; 1564 struct lpfc_fcf_pri *next_fcf_pri; 1565 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1566 spin_lock_irq(&phba->hbalock); 1567 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1568 &phba->fcf.fcf_pri_list, list) { 1569 list_del_init(&fcf_pri->list); 1570 fcf_pri->fcf_rec.flag = 0; 1571 } 1572 spin_unlock_irq(&phba->hbalock); 1573 } 1574 static void 1575 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1576 { 1577 struct lpfc_vport *vport = mboxq->vport; 1578 1579 if (mboxq->u.mb.mbxStatus) { 1580 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1581 "2017 REG_FCFI mbxStatus error x%x " 1582 "HBA state x%x\n", mboxq->u.mb.mbxStatus, 1583 vport->port_state); 1584 goto fail_out; 1585 } 1586 1587 /* Start FCoE discovery by sending a FLOGI. */ 1588 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1589 /* Set the FCFI registered flag */ 1590 spin_lock_irq(&phba->hbalock); 1591 phba->fcf.fcf_flag |= FCF_REGISTERED; 1592 spin_unlock_irq(&phba->hbalock); 1593 1594 /* If there is a pending FCoE event, restart FCF table scan. */ 1595 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1596 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1597 goto fail_out; 1598 1599 /* Mark successful completion of FCF table scan */ 1600 spin_lock_irq(&phba->hbalock); 1601 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1602 phba->hba_flag &= ~FCF_TS_INPROG; 1603 if (vport->port_state != LPFC_FLOGI) { 1604 phba->hba_flag |= FCF_RR_INPROG; 1605 spin_unlock_irq(&phba->hbalock); 1606 lpfc_issue_init_vfi(vport); 1607 goto out; 1608 } 1609 spin_unlock_irq(&phba->hbalock); 1610 goto out; 1611 1612 fail_out: 1613 spin_lock_irq(&phba->hbalock); 1614 phba->hba_flag &= ~FCF_RR_INPROG; 1615 spin_unlock_irq(&phba->hbalock); 1616 out: 1617 mempool_free(mboxq, phba->mbox_mem_pool); 1618 } 1619 1620 /** 1621 * lpfc_fab_name_match - Check if the fcf fabric name match. 1622 * @fab_name: pointer to fabric name. 1623 * @new_fcf_record: pointer to fcf record. 1624 * 1625 * This routine compare the fcf record's fabric name with provided 1626 * fabric name. If the fabric name are identical this function 1627 * returns 1 else return 0. 1628 **/ 1629 static uint32_t 1630 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1631 { 1632 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1633 return 0; 1634 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1635 return 0; 1636 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1637 return 0; 1638 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1639 return 0; 1640 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1641 return 0; 1642 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1643 return 0; 1644 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1645 return 0; 1646 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1647 return 0; 1648 return 1; 1649 } 1650 1651 /** 1652 * lpfc_sw_name_match - Check if the fcf switch name match. 1653 * @sw_name: pointer to switch name. 1654 * @new_fcf_record: pointer to fcf record. 1655 * 1656 * This routine compare the fcf record's switch name with provided 1657 * switch name. If the switch name are identical this function 1658 * returns 1 else return 0. 1659 **/ 1660 static uint32_t 1661 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1662 { 1663 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1664 return 0; 1665 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1666 return 0; 1667 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1668 return 0; 1669 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1670 return 0; 1671 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1672 return 0; 1673 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1674 return 0; 1675 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1676 return 0; 1677 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1678 return 0; 1679 return 1; 1680 } 1681 1682 /** 1683 * lpfc_mac_addr_match - Check if the fcf mac address match. 1684 * @mac_addr: pointer to mac address. 1685 * @new_fcf_record: pointer to fcf record. 1686 * 1687 * This routine compare the fcf record's mac address with HBA's 1688 * FCF mac address. If the mac addresses are identical this function 1689 * returns 1 else return 0. 1690 **/ 1691 static uint32_t 1692 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1693 { 1694 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1695 return 0; 1696 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1697 return 0; 1698 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1699 return 0; 1700 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1701 return 0; 1702 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1703 return 0; 1704 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1705 return 0; 1706 return 1; 1707 } 1708 1709 static bool 1710 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1711 { 1712 return (curr_vlan_id == new_vlan_id); 1713 } 1714 1715 /** 1716 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1717 * @phba: pointer to lpfc hba data structure. 1718 * @fcf_index: Index for the lpfc_fcf_record. 1719 * @new_fcf_record: pointer to hba fcf record. 1720 * 1721 * This routine updates the driver FCF priority record from the new HBA FCF 1722 * record. The hbalock is asserted held in the code path calling this 1723 * routine. 1724 **/ 1725 static void 1726 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1727 struct fcf_record *new_fcf_record 1728 ) 1729 { 1730 struct lpfc_fcf_pri *fcf_pri; 1731 1732 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1733 fcf_pri->fcf_rec.fcf_index = fcf_index; 1734 /* FCF record priority */ 1735 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1736 1737 } 1738 1739 /** 1740 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1741 * @fcf_rec: pointer to driver fcf record. 1742 * @new_fcf_record: pointer to fcf record. 1743 * 1744 * This routine copies the FCF information from the FCF 1745 * record to lpfc_hba data structure. 1746 **/ 1747 static void 1748 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1749 struct fcf_record *new_fcf_record) 1750 { 1751 /* Fabric name */ 1752 fcf_rec->fabric_name[0] = 1753 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1754 fcf_rec->fabric_name[1] = 1755 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1756 fcf_rec->fabric_name[2] = 1757 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1758 fcf_rec->fabric_name[3] = 1759 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1760 fcf_rec->fabric_name[4] = 1761 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1762 fcf_rec->fabric_name[5] = 1763 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1764 fcf_rec->fabric_name[6] = 1765 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1766 fcf_rec->fabric_name[7] = 1767 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1768 /* Mac address */ 1769 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1770 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1771 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1772 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1773 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1774 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1775 /* FCF record index */ 1776 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1777 /* FCF record priority */ 1778 fcf_rec->priority = new_fcf_record->fip_priority; 1779 /* Switch name */ 1780 fcf_rec->switch_name[0] = 1781 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1782 fcf_rec->switch_name[1] = 1783 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1784 fcf_rec->switch_name[2] = 1785 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1786 fcf_rec->switch_name[3] = 1787 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1788 fcf_rec->switch_name[4] = 1789 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1790 fcf_rec->switch_name[5] = 1791 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1792 fcf_rec->switch_name[6] = 1793 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1794 fcf_rec->switch_name[7] = 1795 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1796 } 1797 1798 /** 1799 * __lpfc_update_fcf_record - Update driver fcf record 1800 * @phba: pointer to lpfc hba data structure. 1801 * @fcf_rec: pointer to driver fcf record. 1802 * @new_fcf_record: pointer to hba fcf record. 1803 * @addr_mode: address mode to be set to the driver fcf record. 1804 * @vlan_id: vlan tag to be set to the driver fcf record. 1805 * @flag: flag bits to be set to the driver fcf record. 1806 * 1807 * This routine updates the driver FCF record from the new HBA FCF record 1808 * together with the address mode, vlan_id, and other informations. This 1809 * routine is called with the hbalock held. 1810 **/ 1811 static void 1812 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1813 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1814 uint16_t vlan_id, uint32_t flag) 1815 { 1816 lockdep_assert_held(&phba->hbalock); 1817 1818 /* Copy the fields from the HBA's FCF record */ 1819 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1820 /* Update other fields of driver FCF record */ 1821 fcf_rec->addr_mode = addr_mode; 1822 fcf_rec->vlan_id = vlan_id; 1823 fcf_rec->flag |= (flag | RECORD_VALID); 1824 __lpfc_update_fcf_record_pri(phba, 1825 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1826 new_fcf_record); 1827 } 1828 1829 /** 1830 * lpfc_register_fcf - Register the FCF with hba. 1831 * @phba: pointer to lpfc hba data structure. 1832 * 1833 * This routine issues a register fcfi mailbox command to register 1834 * the fcf with HBA. 1835 **/ 1836 static void 1837 lpfc_register_fcf(struct lpfc_hba *phba) 1838 { 1839 LPFC_MBOXQ_t *fcf_mbxq; 1840 int rc; 1841 1842 spin_lock_irq(&phba->hbalock); 1843 /* If the FCF is not available do nothing. */ 1844 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1845 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1846 spin_unlock_irq(&phba->hbalock); 1847 return; 1848 } 1849 1850 /* The FCF is already registered, start discovery */ 1851 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1852 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1853 phba->hba_flag &= ~FCF_TS_INPROG; 1854 if (phba->pport->port_state != LPFC_FLOGI && 1855 phba->pport->fc_flag & FC_FABRIC) { 1856 phba->hba_flag |= FCF_RR_INPROG; 1857 spin_unlock_irq(&phba->hbalock); 1858 lpfc_initial_flogi(phba->pport); 1859 return; 1860 } 1861 spin_unlock_irq(&phba->hbalock); 1862 return; 1863 } 1864 spin_unlock_irq(&phba->hbalock); 1865 1866 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1867 if (!fcf_mbxq) { 1868 spin_lock_irq(&phba->hbalock); 1869 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1870 spin_unlock_irq(&phba->hbalock); 1871 return; 1872 } 1873 1874 lpfc_reg_fcfi(phba, fcf_mbxq); 1875 fcf_mbxq->vport = phba->pport; 1876 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1877 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1878 if (rc == MBX_NOT_FINISHED) { 1879 spin_lock_irq(&phba->hbalock); 1880 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1881 spin_unlock_irq(&phba->hbalock); 1882 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1883 } 1884 1885 return; 1886 } 1887 1888 /** 1889 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1890 * @phba: pointer to lpfc hba data structure. 1891 * @new_fcf_record: pointer to fcf record. 1892 * @boot_flag: Indicates if this record used by boot bios. 1893 * @addr_mode: The address mode to be used by this FCF 1894 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1895 * 1896 * This routine compare the fcf record with connect list obtained from the 1897 * config region to decide if this FCF can be used for SAN discovery. It returns 1898 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1899 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1900 * is used by boot bios and addr_mode will indicate the addressing mode to be 1901 * used for this FCF when the function returns. 1902 * If the FCF record need to be used with a particular vlan id, the vlan is 1903 * set in the vlan_id on return of the function. If not VLAN tagging need to 1904 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1905 **/ 1906 static int 1907 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1908 struct fcf_record *new_fcf_record, 1909 uint32_t *boot_flag, uint32_t *addr_mode, 1910 uint16_t *vlan_id) 1911 { 1912 struct lpfc_fcf_conn_entry *conn_entry; 1913 int i, j, fcf_vlan_id = 0; 1914 1915 /* Find the lowest VLAN id in the FCF record */ 1916 for (i = 0; i < 512; i++) { 1917 if (new_fcf_record->vlan_bitmap[i]) { 1918 fcf_vlan_id = i * 8; 1919 j = 0; 1920 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1921 j++; 1922 fcf_vlan_id++; 1923 } 1924 break; 1925 } 1926 } 1927 1928 /* FCF not valid/available or solicitation in progress */ 1929 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1930 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1931 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1932 return 0; 1933 1934 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1935 *boot_flag = 0; 1936 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1937 new_fcf_record); 1938 if (phba->valid_vlan) 1939 *vlan_id = phba->vlan_id; 1940 else 1941 *vlan_id = LPFC_FCOE_NULL_VID; 1942 return 1; 1943 } 1944 1945 /* 1946 * If there are no FCF connection table entry, driver connect to all 1947 * FCFs. 1948 */ 1949 if (list_empty(&phba->fcf_conn_rec_list)) { 1950 *boot_flag = 0; 1951 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1952 new_fcf_record); 1953 1954 /* 1955 * When there are no FCF connect entries, use driver's default 1956 * addressing mode - FPMA. 1957 */ 1958 if (*addr_mode & LPFC_FCF_FPMA) 1959 *addr_mode = LPFC_FCF_FPMA; 1960 1961 /* If FCF record report a vlan id use that vlan id */ 1962 if (fcf_vlan_id) 1963 *vlan_id = fcf_vlan_id; 1964 else 1965 *vlan_id = LPFC_FCOE_NULL_VID; 1966 return 1; 1967 } 1968 1969 list_for_each_entry(conn_entry, 1970 &phba->fcf_conn_rec_list, list) { 1971 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1972 continue; 1973 1974 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1975 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1976 new_fcf_record)) 1977 continue; 1978 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1979 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1980 new_fcf_record)) 1981 continue; 1982 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1983 /* 1984 * If the vlan bit map does not have the bit set for the 1985 * vlan id to be used, then it is not a match. 1986 */ 1987 if (!(new_fcf_record->vlan_bitmap 1988 [conn_entry->conn_rec.vlan_tag / 8] & 1989 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1990 continue; 1991 } 1992 1993 /* 1994 * If connection record does not support any addressing mode, 1995 * skip the FCF record. 1996 */ 1997 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1998 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1999 continue; 2000 2001 /* 2002 * Check if the connection record specifies a required 2003 * addressing mode. 2004 */ 2005 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2006 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 2007 2008 /* 2009 * If SPMA required but FCF not support this continue. 2010 */ 2011 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2012 !(bf_get(lpfc_fcf_record_mac_addr_prov, 2013 new_fcf_record) & LPFC_FCF_SPMA)) 2014 continue; 2015 2016 /* 2017 * If FPMA required but FCF not support this continue. 2018 */ 2019 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2020 !(bf_get(lpfc_fcf_record_mac_addr_prov, 2021 new_fcf_record) & LPFC_FCF_FPMA)) 2022 continue; 2023 } 2024 2025 /* 2026 * This fcf record matches filtering criteria. 2027 */ 2028 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 2029 *boot_flag = 1; 2030 else 2031 *boot_flag = 0; 2032 2033 /* 2034 * If user did not specify any addressing mode, or if the 2035 * preferred addressing mode specified by user is not supported 2036 * by FCF, allow fabric to pick the addressing mode. 2037 */ 2038 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 2039 new_fcf_record); 2040 /* 2041 * If the user specified a required address mode, assign that 2042 * address mode 2043 */ 2044 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2045 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 2046 *addr_mode = (conn_entry->conn_rec.flags & 2047 FCFCNCT_AM_SPMA) ? 2048 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 2049 /* 2050 * If the user specified a preferred address mode, use the 2051 * addr mode only if FCF support the addr_mode. 2052 */ 2053 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2054 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2055 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2056 (*addr_mode & LPFC_FCF_SPMA)) 2057 *addr_mode = LPFC_FCF_SPMA; 2058 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2059 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2060 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2061 (*addr_mode & LPFC_FCF_FPMA)) 2062 *addr_mode = LPFC_FCF_FPMA; 2063 2064 /* If matching connect list has a vlan id, use it */ 2065 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 2066 *vlan_id = conn_entry->conn_rec.vlan_tag; 2067 /* 2068 * If no vlan id is specified in connect list, use the vlan id 2069 * in the FCF record 2070 */ 2071 else if (fcf_vlan_id) 2072 *vlan_id = fcf_vlan_id; 2073 else 2074 *vlan_id = LPFC_FCOE_NULL_VID; 2075 2076 return 1; 2077 } 2078 2079 return 0; 2080 } 2081 2082 /** 2083 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 2084 * @phba: pointer to lpfc hba data structure. 2085 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 2086 * 2087 * This function check if there is any fcoe event pending while driver 2088 * scan FCF entries. If there is any pending event, it will restart the 2089 * FCF saning and return 1 else return 0. 2090 */ 2091 int 2092 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 2093 { 2094 /* 2095 * If the Link is up and no FCoE events while in the 2096 * FCF discovery, no need to restart FCF discovery. 2097 */ 2098 if ((phba->link_state >= LPFC_LINK_UP) && 2099 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 2100 return 0; 2101 2102 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2103 "2768 Pending link or FCF event during current " 2104 "handling of the previous event: link_state:x%x, " 2105 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 2106 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 2107 phba->fcoe_eventtag); 2108 2109 spin_lock_irq(&phba->hbalock); 2110 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 2111 spin_unlock_irq(&phba->hbalock); 2112 2113 if (phba->link_state >= LPFC_LINK_UP) { 2114 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2115 "2780 Restart FCF table scan due to " 2116 "pending FCF event:evt_tag_at_scan:x%x, " 2117 "evt_tag_current:x%x\n", 2118 phba->fcoe_eventtag_at_fcf_scan, 2119 phba->fcoe_eventtag); 2120 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 2121 } else { 2122 /* 2123 * Do not continue FCF discovery and clear FCF_TS_INPROG 2124 * flag 2125 */ 2126 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2127 "2833 Stop FCF discovery process due to link " 2128 "state change (x%x)\n", phba->link_state); 2129 spin_lock_irq(&phba->hbalock); 2130 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 2131 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 2132 spin_unlock_irq(&phba->hbalock); 2133 } 2134 2135 /* Unregister the currently registered FCF if required */ 2136 if (unreg_fcf) { 2137 spin_lock_irq(&phba->hbalock); 2138 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 2139 spin_unlock_irq(&phba->hbalock); 2140 lpfc_sli4_unregister_fcf(phba); 2141 } 2142 return 1; 2143 } 2144 2145 /** 2146 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 2147 * @phba: pointer to lpfc hba data structure. 2148 * @fcf_cnt: number of eligible fcf record seen so far. 2149 * 2150 * This function makes an running random selection decision on FCF record to 2151 * use through a sequence of @fcf_cnt eligible FCF records with equal 2152 * probability. To perform integer manunipulation of random numbers with 2153 * size unit32_t, the lower 16 bits of the 32-bit random number returned 2154 * from prandom_u32() are taken as the random random number generated. 2155 * 2156 * Returns true when outcome is for the newly read FCF record should be 2157 * chosen; otherwise, return false when outcome is for keeping the previously 2158 * chosen FCF record. 2159 **/ 2160 static bool 2161 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 2162 { 2163 uint32_t rand_num; 2164 2165 /* Get 16-bit uniform random number */ 2166 rand_num = 0xFFFF & prandom_u32(); 2167 2168 /* Decision with probability 1/fcf_cnt */ 2169 if ((fcf_cnt * rand_num) < 0xFFFF) 2170 return true; 2171 else 2172 return false; 2173 } 2174 2175 /** 2176 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 2177 * @phba: pointer to lpfc hba data structure. 2178 * @mboxq: pointer to mailbox object. 2179 * @next_fcf_index: pointer to holder of next fcf index. 2180 * 2181 * This routine parses the non-embedded fcf mailbox command by performing the 2182 * necessarily error checking, non-embedded read FCF record mailbox command 2183 * SGE parsing, and endianness swapping. 2184 * 2185 * Returns the pointer to the new FCF record in the non-embedded mailbox 2186 * command DMA memory if successfully, other NULL. 2187 */ 2188 static struct fcf_record * 2189 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 2190 uint16_t *next_fcf_index) 2191 { 2192 void *virt_addr; 2193 struct lpfc_mbx_sge sge; 2194 struct lpfc_mbx_read_fcf_tbl *read_fcf; 2195 uint32_t shdr_status, shdr_add_status, if_type; 2196 union lpfc_sli4_cfg_shdr *shdr; 2197 struct fcf_record *new_fcf_record; 2198 2199 /* Get the first SGE entry from the non-embedded DMA memory. This 2200 * routine only uses a single SGE. 2201 */ 2202 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 2203 if (unlikely(!mboxq->sge_array)) { 2204 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2205 "2524 Failed to get the non-embedded SGE " 2206 "virtual address\n"); 2207 return NULL; 2208 } 2209 virt_addr = mboxq->sge_array->addr[0]; 2210 2211 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 2212 lpfc_sli_pcimem_bcopy(shdr, shdr, 2213 sizeof(union lpfc_sli4_cfg_shdr)); 2214 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 2215 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2216 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 2217 if (shdr_status || shdr_add_status) { 2218 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 2219 if_type == LPFC_SLI_INTF_IF_TYPE_2) 2220 lpfc_printf_log(phba, KERN_ERR, 2221 LOG_TRACE_EVENT, 2222 "2726 READ_FCF_RECORD Indicates empty " 2223 "FCF table.\n"); 2224 else 2225 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2226 "2521 READ_FCF_RECORD mailbox failed " 2227 "with status x%x add_status x%x, " 2228 "mbx\n", shdr_status, shdr_add_status); 2229 return NULL; 2230 } 2231 2232 /* Interpreting the returned information of the FCF record */ 2233 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 2234 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 2235 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2236 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 2237 new_fcf_record = (struct fcf_record *)(virt_addr + 2238 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2239 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 2240 offsetof(struct fcf_record, vlan_bitmap)); 2241 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 2242 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 2243 2244 return new_fcf_record; 2245 } 2246 2247 /** 2248 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 2249 * @phba: pointer to lpfc hba data structure. 2250 * @fcf_record: pointer to the fcf record. 2251 * @vlan_id: the lowest vlan identifier associated to this fcf record. 2252 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 2253 * 2254 * This routine logs the detailed FCF record if the LOG_FIP loggin is 2255 * enabled. 2256 **/ 2257 static void 2258 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 2259 struct fcf_record *fcf_record, 2260 uint16_t vlan_id, 2261 uint16_t next_fcf_index) 2262 { 2263 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2264 "2764 READ_FCF_RECORD:\n" 2265 "\tFCF_Index : x%x\n" 2266 "\tFCF_Avail : x%x\n" 2267 "\tFCF_Valid : x%x\n" 2268 "\tFCF_SOL : x%x\n" 2269 "\tFIP_Priority : x%x\n" 2270 "\tMAC_Provider : x%x\n" 2271 "\tLowest VLANID : x%x\n" 2272 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 2273 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2274 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2275 "\tNext_FCF_Index: x%x\n", 2276 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 2277 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 2278 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 2279 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 2280 fcf_record->fip_priority, 2281 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 2282 vlan_id, 2283 bf_get(lpfc_fcf_record_mac_0, fcf_record), 2284 bf_get(lpfc_fcf_record_mac_1, fcf_record), 2285 bf_get(lpfc_fcf_record_mac_2, fcf_record), 2286 bf_get(lpfc_fcf_record_mac_3, fcf_record), 2287 bf_get(lpfc_fcf_record_mac_4, fcf_record), 2288 bf_get(lpfc_fcf_record_mac_5, fcf_record), 2289 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 2290 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 2291 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 2292 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 2293 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 2294 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 2295 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 2296 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 2297 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 2298 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 2299 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 2300 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 2301 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 2302 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 2303 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 2304 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 2305 next_fcf_index); 2306 } 2307 2308 /** 2309 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 2310 * @phba: pointer to lpfc hba data structure. 2311 * @fcf_rec: pointer to an existing FCF record. 2312 * @new_fcf_record: pointer to a new FCF record. 2313 * @new_vlan_id: vlan id from the new FCF record. 2314 * 2315 * This function performs matching test of a new FCF record against an existing 2316 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 2317 * will not be used as part of the FCF record matching criteria. 2318 * 2319 * Returns true if all the fields matching, otherwise returns false. 2320 */ 2321 static bool 2322 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 2323 struct lpfc_fcf_rec *fcf_rec, 2324 struct fcf_record *new_fcf_record, 2325 uint16_t new_vlan_id) 2326 { 2327 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 2328 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 2329 return false; 2330 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 2331 return false; 2332 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 2333 return false; 2334 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 2335 return false; 2336 if (fcf_rec->priority != new_fcf_record->fip_priority) 2337 return false; 2338 return true; 2339 } 2340 2341 /** 2342 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 2343 * @vport: Pointer to vport object. 2344 * @fcf_index: index to next fcf. 2345 * 2346 * This function processing the roundrobin fcf failover to next fcf index. 2347 * When this function is invoked, there will be a current fcf registered 2348 * for flogi. 2349 * Return: 0 for continue retrying flogi on currently registered fcf; 2350 * 1 for stop flogi on currently registered fcf; 2351 */ 2352 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 2353 { 2354 struct lpfc_hba *phba = vport->phba; 2355 int rc; 2356 2357 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2358 spin_lock_irq(&phba->hbalock); 2359 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2360 spin_unlock_irq(&phba->hbalock); 2361 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2362 "2872 Devloss tmo with no eligible " 2363 "FCF, unregister in-use FCF (x%x) " 2364 "and rescan FCF table\n", 2365 phba->fcf.current_rec.fcf_indx); 2366 lpfc_unregister_fcf_rescan(phba); 2367 goto stop_flogi_current_fcf; 2368 } 2369 /* Mark the end to FLOGI roundrobin failover */ 2370 phba->hba_flag &= ~FCF_RR_INPROG; 2371 /* Allow action to new fcf asynchronous event */ 2372 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2373 spin_unlock_irq(&phba->hbalock); 2374 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2375 "2865 No FCF available, stop roundrobin FCF " 2376 "failover and change port state:x%x/x%x\n", 2377 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2378 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2379 2380 if (!phba->fcf.fcf_redisc_attempted) { 2381 lpfc_unregister_fcf(phba); 2382 2383 rc = lpfc_sli4_redisc_fcf_table(phba); 2384 if (!rc) { 2385 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2386 "3195 Rediscover FCF table\n"); 2387 phba->fcf.fcf_redisc_attempted = 1; 2388 lpfc_sli4_clear_fcf_rr_bmask(phba); 2389 } else { 2390 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2391 "3196 Rediscover FCF table " 2392 "failed. Status:x%x\n", rc); 2393 } 2394 } else { 2395 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2396 "3197 Already rediscover FCF table " 2397 "attempted. No more retry\n"); 2398 } 2399 goto stop_flogi_current_fcf; 2400 } else { 2401 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2402 "2794 Try FLOGI roundrobin FCF failover to " 2403 "(x%x)\n", fcf_index); 2404 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2405 if (rc) 2406 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2407 "2761 FLOGI roundrobin FCF failover " 2408 "failed (rc:x%x) to read FCF (x%x)\n", 2409 rc, phba->fcf.current_rec.fcf_indx); 2410 else 2411 goto stop_flogi_current_fcf; 2412 } 2413 return 0; 2414 2415 stop_flogi_current_fcf: 2416 lpfc_can_disctmo(vport); 2417 return 1; 2418 } 2419 2420 /** 2421 * lpfc_sli4_fcf_pri_list_del 2422 * @phba: pointer to lpfc hba data structure. 2423 * @fcf_index: the index of the fcf record to delete 2424 * This routine checks the on list flag of the fcf_index to be deleted. 2425 * If it is one the list then it is removed from the list, and the flag 2426 * is cleared. This routine grab the hbalock before removing the fcf 2427 * record from the list. 2428 **/ 2429 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2430 uint16_t fcf_index) 2431 { 2432 struct lpfc_fcf_pri *new_fcf_pri; 2433 2434 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2435 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2436 "3058 deleting idx x%x pri x%x flg x%x\n", 2437 fcf_index, new_fcf_pri->fcf_rec.priority, 2438 new_fcf_pri->fcf_rec.flag); 2439 spin_lock_irq(&phba->hbalock); 2440 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2441 if (phba->fcf.current_rec.priority == 2442 new_fcf_pri->fcf_rec.priority) 2443 phba->fcf.eligible_fcf_cnt--; 2444 list_del_init(&new_fcf_pri->list); 2445 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2446 } 2447 spin_unlock_irq(&phba->hbalock); 2448 } 2449 2450 /** 2451 * lpfc_sli4_set_fcf_flogi_fail 2452 * @phba: pointer to lpfc hba data structure. 2453 * @fcf_index: the index of the fcf record to update 2454 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2455 * flag so the the round robin slection for the particular priority level 2456 * will try a different fcf record that does not have this bit set. 2457 * If the fcf record is re-read for any reason this flag is cleared brfore 2458 * adding it to the priority list. 2459 **/ 2460 void 2461 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2462 { 2463 struct lpfc_fcf_pri *new_fcf_pri; 2464 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2465 spin_lock_irq(&phba->hbalock); 2466 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2467 spin_unlock_irq(&phba->hbalock); 2468 } 2469 2470 /** 2471 * lpfc_sli4_fcf_pri_list_add 2472 * @phba: pointer to lpfc hba data structure. 2473 * @fcf_index: the index of the fcf record to add 2474 * @new_fcf_record: pointer to a new FCF record. 2475 * This routine checks the priority of the fcf_index to be added. 2476 * If it is a lower priority than the current head of the fcf_pri list 2477 * then it is added to the list in the right order. 2478 * If it is the same priority as the current head of the list then it 2479 * is added to the head of the list and its bit in the rr_bmask is set. 2480 * If the fcf_index to be added is of a higher priority than the current 2481 * head of the list then the rr_bmask is cleared, its bit is set in the 2482 * rr_bmask and it is added to the head of the list. 2483 * returns: 2484 * 0=success 1=failure 2485 **/ 2486 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2487 uint16_t fcf_index, 2488 struct fcf_record *new_fcf_record) 2489 { 2490 uint16_t current_fcf_pri; 2491 uint16_t last_index; 2492 struct lpfc_fcf_pri *fcf_pri; 2493 struct lpfc_fcf_pri *next_fcf_pri; 2494 struct lpfc_fcf_pri *new_fcf_pri; 2495 int ret; 2496 2497 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2498 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2499 "3059 adding idx x%x pri x%x flg x%x\n", 2500 fcf_index, new_fcf_record->fip_priority, 2501 new_fcf_pri->fcf_rec.flag); 2502 spin_lock_irq(&phba->hbalock); 2503 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2504 list_del_init(&new_fcf_pri->list); 2505 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2506 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2507 if (list_empty(&phba->fcf.fcf_pri_list)) { 2508 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2509 ret = lpfc_sli4_fcf_rr_index_set(phba, 2510 new_fcf_pri->fcf_rec.fcf_index); 2511 goto out; 2512 } 2513 2514 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2515 LPFC_SLI4_FCF_TBL_INDX_MAX); 2516 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2517 ret = 0; /* Empty rr list */ 2518 goto out; 2519 } 2520 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2521 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2522 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2523 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2524 memset(phba->fcf.fcf_rr_bmask, 0, 2525 sizeof(*phba->fcf.fcf_rr_bmask)); 2526 /* fcfs_at_this_priority_level = 1; */ 2527 phba->fcf.eligible_fcf_cnt = 1; 2528 } else 2529 /* fcfs_at_this_priority_level++; */ 2530 phba->fcf.eligible_fcf_cnt++; 2531 ret = lpfc_sli4_fcf_rr_index_set(phba, 2532 new_fcf_pri->fcf_rec.fcf_index); 2533 goto out; 2534 } 2535 2536 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2537 &phba->fcf.fcf_pri_list, list) { 2538 if (new_fcf_pri->fcf_rec.priority <= 2539 fcf_pri->fcf_rec.priority) { 2540 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2541 list_add(&new_fcf_pri->list, 2542 &phba->fcf.fcf_pri_list); 2543 else 2544 list_add(&new_fcf_pri->list, 2545 &((struct lpfc_fcf_pri *) 2546 fcf_pri->list.prev)->list); 2547 ret = 0; 2548 goto out; 2549 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2550 || new_fcf_pri->fcf_rec.priority < 2551 next_fcf_pri->fcf_rec.priority) { 2552 list_add(&new_fcf_pri->list, &fcf_pri->list); 2553 ret = 0; 2554 goto out; 2555 } 2556 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2557 continue; 2558 2559 } 2560 ret = 1; 2561 out: 2562 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2563 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2564 spin_unlock_irq(&phba->hbalock); 2565 return ret; 2566 } 2567 2568 /** 2569 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2570 * @phba: pointer to lpfc hba data structure. 2571 * @mboxq: pointer to mailbox object. 2572 * 2573 * This function iterates through all the fcf records available in 2574 * HBA and chooses the optimal FCF record for discovery. After finding 2575 * the FCF for discovery it registers the FCF record and kicks start 2576 * discovery. 2577 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2578 * use an FCF record which matches fabric name and mac address of the 2579 * currently used FCF record. 2580 * If the driver supports only one FCF, it will try to use the FCF record 2581 * used by BOOT_BIOS. 2582 */ 2583 void 2584 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2585 { 2586 struct fcf_record *new_fcf_record; 2587 uint32_t boot_flag, addr_mode; 2588 uint16_t fcf_index, next_fcf_index; 2589 struct lpfc_fcf_rec *fcf_rec = NULL; 2590 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2591 bool select_new_fcf; 2592 int rc; 2593 2594 /* If there is pending FCoE event restart FCF table scan */ 2595 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2596 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2597 return; 2598 } 2599 2600 /* Parse the FCF record from the non-embedded mailbox command */ 2601 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2602 &next_fcf_index); 2603 if (!new_fcf_record) { 2604 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2605 "2765 Mailbox command READ_FCF_RECORD " 2606 "failed to retrieve a FCF record.\n"); 2607 /* Let next new FCF event trigger fast failover */ 2608 spin_lock_irq(&phba->hbalock); 2609 phba->hba_flag &= ~FCF_TS_INPROG; 2610 spin_unlock_irq(&phba->hbalock); 2611 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2612 return; 2613 } 2614 2615 /* Check the FCF record against the connection list */ 2616 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2617 &addr_mode, &vlan_id); 2618 2619 /* Log the FCF record information if turned on */ 2620 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2621 next_fcf_index); 2622 2623 /* 2624 * If the fcf record does not match with connect list entries 2625 * read the next entry; otherwise, this is an eligible FCF 2626 * record for roundrobin FCF failover. 2627 */ 2628 if (!rc) { 2629 lpfc_sli4_fcf_pri_list_del(phba, 2630 bf_get(lpfc_fcf_record_fcf_index, 2631 new_fcf_record)); 2632 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2633 "2781 FCF (x%x) failed connection " 2634 "list check: (x%x/x%x/%x)\n", 2635 bf_get(lpfc_fcf_record_fcf_index, 2636 new_fcf_record), 2637 bf_get(lpfc_fcf_record_fcf_avail, 2638 new_fcf_record), 2639 bf_get(lpfc_fcf_record_fcf_valid, 2640 new_fcf_record), 2641 bf_get(lpfc_fcf_record_fcf_sol, 2642 new_fcf_record)); 2643 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2644 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2645 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2646 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2647 phba->fcf.current_rec.fcf_indx) { 2648 lpfc_printf_log(phba, KERN_ERR, 2649 LOG_TRACE_EVENT, 2650 "2862 FCF (x%x) matches property " 2651 "of in-use FCF (x%x)\n", 2652 bf_get(lpfc_fcf_record_fcf_index, 2653 new_fcf_record), 2654 phba->fcf.current_rec.fcf_indx); 2655 goto read_next_fcf; 2656 } 2657 /* 2658 * In case the current in-use FCF record becomes 2659 * invalid/unavailable during FCF discovery that 2660 * was not triggered by fast FCF failover process, 2661 * treat it as fast FCF failover. 2662 */ 2663 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2664 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2665 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2666 "2835 Invalid in-use FCF " 2667 "(x%x), enter FCF failover " 2668 "table scan.\n", 2669 phba->fcf.current_rec.fcf_indx); 2670 spin_lock_irq(&phba->hbalock); 2671 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2672 spin_unlock_irq(&phba->hbalock); 2673 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2674 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2675 LPFC_FCOE_FCF_GET_FIRST); 2676 return; 2677 } 2678 } 2679 goto read_next_fcf; 2680 } else { 2681 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2682 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2683 new_fcf_record); 2684 if (rc) 2685 goto read_next_fcf; 2686 } 2687 2688 /* 2689 * If this is not the first FCF discovery of the HBA, use last 2690 * FCF record for the discovery. The condition that a rescan 2691 * matches the in-use FCF record: fabric name, switch name, mac 2692 * address, and vlan_id. 2693 */ 2694 spin_lock_irq(&phba->hbalock); 2695 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2696 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2697 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2698 new_fcf_record, vlan_id)) { 2699 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2700 phba->fcf.current_rec.fcf_indx) { 2701 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2702 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2703 /* Stop FCF redisc wait timer */ 2704 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2705 phba); 2706 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2707 /* Fast failover, mark completed */ 2708 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2709 spin_unlock_irq(&phba->hbalock); 2710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2711 "2836 New FCF matches in-use " 2712 "FCF (x%x), port_state:x%x, " 2713 "fc_flag:x%x\n", 2714 phba->fcf.current_rec.fcf_indx, 2715 phba->pport->port_state, 2716 phba->pport->fc_flag); 2717 goto out; 2718 } else 2719 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2720 "2863 New FCF (x%x) matches " 2721 "property of in-use FCF (x%x)\n", 2722 bf_get(lpfc_fcf_record_fcf_index, 2723 new_fcf_record), 2724 phba->fcf.current_rec.fcf_indx); 2725 } 2726 /* 2727 * Read next FCF record from HBA searching for the matching 2728 * with in-use record only if not during the fast failover 2729 * period. In case of fast failover period, it shall try to 2730 * determine whether the FCF record just read should be the 2731 * next candidate. 2732 */ 2733 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2734 spin_unlock_irq(&phba->hbalock); 2735 goto read_next_fcf; 2736 } 2737 } 2738 /* 2739 * Update on failover FCF record only if it's in FCF fast-failover 2740 * period; otherwise, update on current FCF record. 2741 */ 2742 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2743 fcf_rec = &phba->fcf.failover_rec; 2744 else 2745 fcf_rec = &phba->fcf.current_rec; 2746 2747 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2748 /* 2749 * If the driver FCF record does not have boot flag 2750 * set and new hba fcf record has boot flag set, use 2751 * the new hba fcf record. 2752 */ 2753 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2754 /* Choose this FCF record */ 2755 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2756 "2837 Update current FCF record " 2757 "(x%x) with new FCF record (x%x)\n", 2758 fcf_rec->fcf_indx, 2759 bf_get(lpfc_fcf_record_fcf_index, 2760 new_fcf_record)); 2761 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2762 addr_mode, vlan_id, BOOT_ENABLE); 2763 spin_unlock_irq(&phba->hbalock); 2764 goto read_next_fcf; 2765 } 2766 /* 2767 * If the driver FCF record has boot flag set and the 2768 * new hba FCF record does not have boot flag, read 2769 * the next FCF record. 2770 */ 2771 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2772 spin_unlock_irq(&phba->hbalock); 2773 goto read_next_fcf; 2774 } 2775 /* 2776 * If the new hba FCF record has lower priority value 2777 * than the driver FCF record, use the new record. 2778 */ 2779 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2780 /* Choose the new FCF record with lower priority */ 2781 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2782 "2838 Update current FCF record " 2783 "(x%x) with new FCF record (x%x)\n", 2784 fcf_rec->fcf_indx, 2785 bf_get(lpfc_fcf_record_fcf_index, 2786 new_fcf_record)); 2787 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2788 addr_mode, vlan_id, 0); 2789 /* Reset running random FCF selection count */ 2790 phba->fcf.eligible_fcf_cnt = 1; 2791 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2792 /* Update running random FCF selection count */ 2793 phba->fcf.eligible_fcf_cnt++; 2794 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2795 phba->fcf.eligible_fcf_cnt); 2796 if (select_new_fcf) { 2797 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2798 "2839 Update current FCF record " 2799 "(x%x) with new FCF record (x%x)\n", 2800 fcf_rec->fcf_indx, 2801 bf_get(lpfc_fcf_record_fcf_index, 2802 new_fcf_record)); 2803 /* Choose the new FCF by random selection */ 2804 __lpfc_update_fcf_record(phba, fcf_rec, 2805 new_fcf_record, 2806 addr_mode, vlan_id, 0); 2807 } 2808 } 2809 spin_unlock_irq(&phba->hbalock); 2810 goto read_next_fcf; 2811 } 2812 /* 2813 * This is the first suitable FCF record, choose this record for 2814 * initial best-fit FCF. 2815 */ 2816 if (fcf_rec) { 2817 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2818 "2840 Update initial FCF candidate " 2819 "with FCF (x%x)\n", 2820 bf_get(lpfc_fcf_record_fcf_index, 2821 new_fcf_record)); 2822 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2823 addr_mode, vlan_id, (boot_flag ? 2824 BOOT_ENABLE : 0)); 2825 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2826 /* Setup initial running random FCF selection count */ 2827 phba->fcf.eligible_fcf_cnt = 1; 2828 } 2829 spin_unlock_irq(&phba->hbalock); 2830 goto read_next_fcf; 2831 2832 read_next_fcf: 2833 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2834 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2835 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2836 /* 2837 * Case of FCF fast failover scan 2838 */ 2839 2840 /* 2841 * It has not found any suitable FCF record, cancel 2842 * FCF scan inprogress, and do nothing 2843 */ 2844 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2845 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2846 "2782 No suitable FCF found: " 2847 "(x%x/x%x)\n", 2848 phba->fcoe_eventtag_at_fcf_scan, 2849 bf_get(lpfc_fcf_record_fcf_index, 2850 new_fcf_record)); 2851 spin_lock_irq(&phba->hbalock); 2852 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2853 phba->hba_flag &= ~FCF_TS_INPROG; 2854 spin_unlock_irq(&phba->hbalock); 2855 /* Unregister in-use FCF and rescan */ 2856 lpfc_printf_log(phba, KERN_INFO, 2857 LOG_FIP, 2858 "2864 On devloss tmo " 2859 "unreg in-use FCF and " 2860 "rescan FCF table\n"); 2861 lpfc_unregister_fcf_rescan(phba); 2862 return; 2863 } 2864 /* 2865 * Let next new FCF event trigger fast failover 2866 */ 2867 phba->hba_flag &= ~FCF_TS_INPROG; 2868 spin_unlock_irq(&phba->hbalock); 2869 return; 2870 } 2871 /* 2872 * It has found a suitable FCF record that is not 2873 * the same as in-use FCF record, unregister the 2874 * in-use FCF record, replace the in-use FCF record 2875 * with the new FCF record, mark FCF fast failover 2876 * completed, and then start register the new FCF 2877 * record. 2878 */ 2879 2880 /* Unregister the current in-use FCF record */ 2881 lpfc_unregister_fcf(phba); 2882 2883 /* Replace in-use record with the new record */ 2884 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2885 "2842 Replace in-use FCF (x%x) " 2886 "with failover FCF (x%x)\n", 2887 phba->fcf.current_rec.fcf_indx, 2888 phba->fcf.failover_rec.fcf_indx); 2889 memcpy(&phba->fcf.current_rec, 2890 &phba->fcf.failover_rec, 2891 sizeof(struct lpfc_fcf_rec)); 2892 /* 2893 * Mark the fast FCF failover rediscovery completed 2894 * and the start of the first round of the roundrobin 2895 * FCF failover. 2896 */ 2897 spin_lock_irq(&phba->hbalock); 2898 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2899 spin_unlock_irq(&phba->hbalock); 2900 /* Register to the new FCF record */ 2901 lpfc_register_fcf(phba); 2902 } else { 2903 /* 2904 * In case of transaction period to fast FCF failover, 2905 * do nothing when search to the end of the FCF table. 2906 */ 2907 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2908 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2909 return; 2910 2911 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2912 phba->fcf.fcf_flag & FCF_IN_USE) { 2913 /* 2914 * In case the current in-use FCF record no 2915 * longer existed during FCF discovery that 2916 * was not triggered by fast FCF failover 2917 * process, treat it as fast FCF failover. 2918 */ 2919 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2920 "2841 In-use FCF record (x%x) " 2921 "not reported, entering fast " 2922 "FCF failover mode scanning.\n", 2923 phba->fcf.current_rec.fcf_indx); 2924 spin_lock_irq(&phba->hbalock); 2925 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2926 spin_unlock_irq(&phba->hbalock); 2927 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2928 LPFC_FCOE_FCF_GET_FIRST); 2929 return; 2930 } 2931 /* Register to the new FCF record */ 2932 lpfc_register_fcf(phba); 2933 } 2934 } else 2935 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2936 return; 2937 2938 out: 2939 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2940 lpfc_register_fcf(phba); 2941 2942 return; 2943 } 2944 2945 /** 2946 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2947 * @phba: pointer to lpfc hba data structure. 2948 * @mboxq: pointer to mailbox object. 2949 * 2950 * This is the callback function for FLOGI failure roundrobin FCF failover 2951 * read FCF record mailbox command from the eligible FCF record bmask for 2952 * performing the failover. If the FCF read back is not valid/available, it 2953 * fails through to retrying FLOGI to the currently registered FCF again. 2954 * Otherwise, if the FCF read back is valid and available, it will set the 2955 * newly read FCF record to the failover FCF record, unregister currently 2956 * registered FCF record, copy the failover FCF record to the current 2957 * FCF record, and then register the current FCF record before proceeding 2958 * to trying FLOGI on the new failover FCF. 2959 */ 2960 void 2961 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2962 { 2963 struct fcf_record *new_fcf_record; 2964 uint32_t boot_flag, addr_mode; 2965 uint16_t next_fcf_index, fcf_index; 2966 uint16_t current_fcf_index; 2967 uint16_t vlan_id; 2968 int rc; 2969 2970 /* If link state is not up, stop the roundrobin failover process */ 2971 if (phba->link_state < LPFC_LINK_UP) { 2972 spin_lock_irq(&phba->hbalock); 2973 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2974 phba->hba_flag &= ~FCF_RR_INPROG; 2975 spin_unlock_irq(&phba->hbalock); 2976 goto out; 2977 } 2978 2979 /* Parse the FCF record from the non-embedded mailbox command */ 2980 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2981 &next_fcf_index); 2982 if (!new_fcf_record) { 2983 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2984 "2766 Mailbox command READ_FCF_RECORD " 2985 "failed to retrieve a FCF record. " 2986 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2987 phba->fcf.fcf_flag); 2988 lpfc_unregister_fcf_rescan(phba); 2989 goto out; 2990 } 2991 2992 /* Get the needed parameters from FCF record */ 2993 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2994 &addr_mode, &vlan_id); 2995 2996 /* Log the FCF record information if turned on */ 2997 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2998 next_fcf_index); 2999 3000 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3001 if (!rc) { 3002 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3003 "2848 Remove ineligible FCF (x%x) from " 3004 "from roundrobin bmask\n", fcf_index); 3005 /* Clear roundrobin bmask bit for ineligible FCF */ 3006 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 3007 /* Perform next round of roundrobin FCF failover */ 3008 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 3009 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 3010 if (rc) 3011 goto out; 3012 goto error_out; 3013 } 3014 3015 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 3016 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3017 "2760 Perform FLOGI roundrobin FCF failover: " 3018 "FCF (x%x) back to FCF (x%x)\n", 3019 phba->fcf.current_rec.fcf_indx, fcf_index); 3020 /* Wait 500 ms before retrying FLOGI to current FCF */ 3021 msleep(500); 3022 lpfc_issue_init_vfi(phba->pport); 3023 goto out; 3024 } 3025 3026 /* Upload new FCF record to the failover FCF record */ 3027 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3028 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 3029 phba->fcf.failover_rec.fcf_indx, fcf_index); 3030 spin_lock_irq(&phba->hbalock); 3031 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 3032 new_fcf_record, addr_mode, vlan_id, 3033 (boot_flag ? BOOT_ENABLE : 0)); 3034 spin_unlock_irq(&phba->hbalock); 3035 3036 current_fcf_index = phba->fcf.current_rec.fcf_indx; 3037 3038 /* Unregister the current in-use FCF record */ 3039 lpfc_unregister_fcf(phba); 3040 3041 /* Replace in-use record with the new record */ 3042 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 3043 sizeof(struct lpfc_fcf_rec)); 3044 3045 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3046 "2783 Perform FLOGI roundrobin FCF failover: FCF " 3047 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 3048 3049 error_out: 3050 lpfc_register_fcf(phba); 3051 out: 3052 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3053 } 3054 3055 /** 3056 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 3057 * @phba: pointer to lpfc hba data structure. 3058 * @mboxq: pointer to mailbox object. 3059 * 3060 * This is the callback function of read FCF record mailbox command for 3061 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 3062 * failover when a new FCF event happened. If the FCF read back is 3063 * valid/available and it passes the connection list check, it updates 3064 * the bmask for the eligible FCF record for roundrobin failover. 3065 */ 3066 void 3067 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3068 { 3069 struct fcf_record *new_fcf_record; 3070 uint32_t boot_flag, addr_mode; 3071 uint16_t fcf_index, next_fcf_index; 3072 uint16_t vlan_id; 3073 int rc; 3074 3075 /* If link state is not up, no need to proceed */ 3076 if (phba->link_state < LPFC_LINK_UP) 3077 goto out; 3078 3079 /* If FCF discovery period is over, no need to proceed */ 3080 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 3081 goto out; 3082 3083 /* Parse the FCF record from the non-embedded mailbox command */ 3084 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 3085 &next_fcf_index); 3086 if (!new_fcf_record) { 3087 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3088 "2767 Mailbox command READ_FCF_RECORD " 3089 "failed to retrieve a FCF record.\n"); 3090 goto out; 3091 } 3092 3093 /* Check the connection list for eligibility */ 3094 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 3095 &addr_mode, &vlan_id); 3096 3097 /* Log the FCF record information if turned on */ 3098 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 3099 next_fcf_index); 3100 3101 if (!rc) 3102 goto out; 3103 3104 /* Update the eligible FCF record index bmask */ 3105 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3106 3107 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 3108 3109 out: 3110 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3111 } 3112 3113 /** 3114 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 3115 * @phba: pointer to lpfc hba data structure. 3116 * @mboxq: pointer to mailbox data structure. 3117 * 3118 * This function handles completion of init vfi mailbox command. 3119 */ 3120 static void 3121 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3122 { 3123 struct lpfc_vport *vport = mboxq->vport; 3124 3125 /* 3126 * VFI not supported on interface type 0, just do the flogi 3127 * Also continue if the VFI is in use - just use the same one. 3128 */ 3129 if (mboxq->u.mb.mbxStatus && 3130 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3131 LPFC_SLI_INTF_IF_TYPE_0) && 3132 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3133 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3134 "2891 Init VFI mailbox failed 0x%x\n", 3135 mboxq->u.mb.mbxStatus); 3136 mempool_free(mboxq, phba->mbox_mem_pool); 3137 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3138 return; 3139 } 3140 3141 lpfc_initial_flogi(vport); 3142 mempool_free(mboxq, phba->mbox_mem_pool); 3143 return; 3144 } 3145 3146 /** 3147 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 3148 * @vport: pointer to lpfc_vport data structure. 3149 * 3150 * This function issue a init_vfi mailbox command to initialize the VFI and 3151 * VPI for the physical port. 3152 */ 3153 void 3154 lpfc_issue_init_vfi(struct lpfc_vport *vport) 3155 { 3156 LPFC_MBOXQ_t *mboxq; 3157 int rc; 3158 struct lpfc_hba *phba = vport->phba; 3159 3160 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3161 if (!mboxq) { 3162 lpfc_printf_vlog(vport, KERN_ERR, 3163 LOG_TRACE_EVENT, "2892 Failed to allocate " 3164 "init_vfi mailbox\n"); 3165 return; 3166 } 3167 lpfc_init_vfi(mboxq, vport); 3168 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 3169 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 3170 if (rc == MBX_NOT_FINISHED) { 3171 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3172 "2893 Failed to issue init_vfi mailbox\n"); 3173 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3174 } 3175 } 3176 3177 /** 3178 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 3179 * @phba: pointer to lpfc hba data structure. 3180 * @mboxq: pointer to mailbox data structure. 3181 * 3182 * This function handles completion of init vpi mailbox command. 3183 */ 3184 void 3185 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3186 { 3187 struct lpfc_vport *vport = mboxq->vport; 3188 struct lpfc_nodelist *ndlp; 3189 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3190 3191 if (mboxq->u.mb.mbxStatus) { 3192 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3193 "2609 Init VPI mailbox failed 0x%x\n", 3194 mboxq->u.mb.mbxStatus); 3195 mempool_free(mboxq, phba->mbox_mem_pool); 3196 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3197 return; 3198 } 3199 spin_lock_irq(shost->host_lock); 3200 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3201 spin_unlock_irq(shost->host_lock); 3202 3203 /* If this port is physical port or FDISC is done, do reg_vpi */ 3204 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 3205 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3206 if (!ndlp) 3207 lpfc_printf_vlog(vport, KERN_ERR, 3208 LOG_TRACE_EVENT, 3209 "2731 Cannot find fabric " 3210 "controller node\n"); 3211 else 3212 lpfc_register_new_vport(phba, vport, ndlp); 3213 mempool_free(mboxq, phba->mbox_mem_pool); 3214 return; 3215 } 3216 3217 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3218 lpfc_initial_fdisc(vport); 3219 else { 3220 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 3221 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3222 "2606 No NPIV Fabric support\n"); 3223 } 3224 mempool_free(mboxq, phba->mbox_mem_pool); 3225 return; 3226 } 3227 3228 /** 3229 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 3230 * @vport: pointer to lpfc_vport data structure. 3231 * 3232 * This function issue a init_vpi mailbox command to initialize 3233 * VPI for the vport. 3234 */ 3235 void 3236 lpfc_issue_init_vpi(struct lpfc_vport *vport) 3237 { 3238 LPFC_MBOXQ_t *mboxq; 3239 int rc, vpi; 3240 3241 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 3242 vpi = lpfc_alloc_vpi(vport->phba); 3243 if (!vpi) { 3244 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3245 "3303 Failed to obtain vport vpi\n"); 3246 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3247 return; 3248 } 3249 vport->vpi = vpi; 3250 } 3251 3252 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 3253 if (!mboxq) { 3254 lpfc_printf_vlog(vport, KERN_ERR, 3255 LOG_TRACE_EVENT, "2607 Failed to allocate " 3256 "init_vpi mailbox\n"); 3257 return; 3258 } 3259 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 3260 mboxq->vport = vport; 3261 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 3262 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 3263 if (rc == MBX_NOT_FINISHED) { 3264 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3265 "2608 Failed to issue init_vpi mailbox\n"); 3266 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3267 } 3268 } 3269 3270 /** 3271 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 3272 * @phba: pointer to lpfc hba data structure. 3273 * 3274 * This function loops through the list of vports on the @phba and issues an 3275 * FDISC if possible. 3276 */ 3277 void 3278 lpfc_start_fdiscs(struct lpfc_hba *phba) 3279 { 3280 struct lpfc_vport **vports; 3281 int i; 3282 3283 vports = lpfc_create_vport_work_array(phba); 3284 if (vports != NULL) { 3285 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3286 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 3287 continue; 3288 /* There are no vpi for this vport */ 3289 if (vports[i]->vpi > phba->max_vpi) { 3290 lpfc_vport_set_state(vports[i], 3291 FC_VPORT_FAILED); 3292 continue; 3293 } 3294 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3295 lpfc_vport_set_state(vports[i], 3296 FC_VPORT_LINKDOWN); 3297 continue; 3298 } 3299 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 3300 lpfc_issue_init_vpi(vports[i]); 3301 continue; 3302 } 3303 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3304 lpfc_initial_fdisc(vports[i]); 3305 else { 3306 lpfc_vport_set_state(vports[i], 3307 FC_VPORT_NO_FABRIC_SUPP); 3308 lpfc_printf_vlog(vports[i], KERN_ERR, 3309 LOG_TRACE_EVENT, 3310 "0259 No NPIV " 3311 "Fabric support\n"); 3312 } 3313 } 3314 } 3315 lpfc_destroy_vport_work_array(phba, vports); 3316 } 3317 3318 void 3319 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3320 { 3321 struct lpfc_vport *vport = mboxq->vport; 3322 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3323 3324 /* 3325 * VFI not supported for interface type 0, so ignore any mailbox 3326 * error (except VFI in use) and continue with the discovery. 3327 */ 3328 if (mboxq->u.mb.mbxStatus && 3329 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3330 LPFC_SLI_INTF_IF_TYPE_0) && 3331 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3332 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3333 "2018 REG_VFI mbxStatus error x%x " 3334 "HBA state x%x\n", 3335 mboxq->u.mb.mbxStatus, vport->port_state); 3336 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3337 /* FLOGI failed, use loop map to make discovery list */ 3338 lpfc_disc_list_loopmap(vport); 3339 /* Start discovery */ 3340 lpfc_disc_start(vport); 3341 goto out_free_mem; 3342 } 3343 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3344 goto out_free_mem; 3345 } 3346 3347 /* If the VFI is already registered, there is nothing else to do 3348 * Unless this was a VFI update and we are in PT2PT mode, then 3349 * we should drop through to set the port state to ready. 3350 */ 3351 if (vport->fc_flag & FC_VFI_REGISTERED) 3352 if (!(phba->sli_rev == LPFC_SLI_REV4 && 3353 vport->fc_flag & FC_PT2PT)) 3354 goto out_free_mem; 3355 3356 /* The VPI is implicitly registered when the VFI is registered */ 3357 spin_lock_irq(shost->host_lock); 3358 vport->vpi_state |= LPFC_VPI_REGISTERED; 3359 vport->fc_flag |= FC_VFI_REGISTERED; 3360 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3361 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3362 spin_unlock_irq(shost->host_lock); 3363 3364 /* In case SLI4 FC loopback test, we are ready */ 3365 if ((phba->sli_rev == LPFC_SLI_REV4) && 3366 (phba->link_flag & LS_LOOPBACK_MODE)) { 3367 phba->link_state = LPFC_HBA_READY; 3368 goto out_free_mem; 3369 } 3370 3371 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3372 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3373 "alpacnt:%d LinkState:%x topology:%x\n", 3374 vport->port_state, vport->fc_flag, vport->fc_myDID, 3375 vport->phba->alpa_map[0], 3376 phba->link_state, phba->fc_topology); 3377 3378 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3379 /* 3380 * For private loop or for NPort pt2pt, 3381 * just start discovery and we are done. 3382 */ 3383 if ((vport->fc_flag & FC_PT2PT) || 3384 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3385 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3386 3387 /* Use loop map to make discovery list */ 3388 lpfc_disc_list_loopmap(vport); 3389 /* Start discovery */ 3390 if (vport->fc_flag & FC_PT2PT) 3391 vport->port_state = LPFC_VPORT_READY; 3392 else 3393 lpfc_disc_start(vport); 3394 } else { 3395 lpfc_start_fdiscs(phba); 3396 lpfc_do_scr_ns_plogi(phba, vport); 3397 } 3398 } 3399 3400 out_free_mem: 3401 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); 3402 } 3403 3404 static void 3405 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3406 { 3407 MAILBOX_t *mb = &pmb->u.mb; 3408 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3409 struct lpfc_vport *vport = pmb->vport; 3410 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3411 struct serv_parm *sp = &vport->fc_sparam; 3412 uint32_t ed_tov; 3413 3414 /* Check for error */ 3415 if (mb->mbxStatus) { 3416 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3417 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3418 "0319 READ_SPARAM mbxStatus error x%x " 3419 "hba state x%x>\n", 3420 mb->mbxStatus, vport->port_state); 3421 lpfc_linkdown(phba); 3422 goto out; 3423 } 3424 3425 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3426 sizeof (struct serv_parm)); 3427 3428 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3429 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3430 ed_tov = (ed_tov + 999999) / 1000000; 3431 3432 phba->fc_edtov = ed_tov; 3433 phba->fc_ratov = (2 * ed_tov) / 1000; 3434 if (phba->fc_ratov < FF_DEF_RATOV) { 3435 /* RA_TOV should be atleast 10sec for initial flogi */ 3436 phba->fc_ratov = FF_DEF_RATOV; 3437 } 3438 3439 lpfc_update_vport_wwn(vport); 3440 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3441 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3442 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3443 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3444 } 3445 3446 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3447 3448 /* Check if sending the FLOGI is being deferred to after we get 3449 * up to date CSPs from MBX_READ_SPARAM. 3450 */ 3451 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3452 lpfc_initial_flogi(vport); 3453 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3454 } 3455 return; 3456 3457 out: 3458 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3459 lpfc_issue_clear_la(phba, vport); 3460 } 3461 3462 static void 3463 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3464 { 3465 struct lpfc_vport *vport = phba->pport; 3466 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3467 struct Scsi_Host *shost; 3468 int i; 3469 int rc; 3470 struct fcf_record *fcf_record; 3471 uint32_t fc_flags = 0; 3472 unsigned long iflags; 3473 3474 spin_lock_irqsave(&phba->hbalock, iflags); 3475 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3476 3477 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3478 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3479 case LPFC_LINK_SPEED_1GHZ: 3480 case LPFC_LINK_SPEED_2GHZ: 3481 case LPFC_LINK_SPEED_4GHZ: 3482 case LPFC_LINK_SPEED_8GHZ: 3483 case LPFC_LINK_SPEED_10GHZ: 3484 case LPFC_LINK_SPEED_16GHZ: 3485 case LPFC_LINK_SPEED_32GHZ: 3486 case LPFC_LINK_SPEED_64GHZ: 3487 case LPFC_LINK_SPEED_128GHZ: 3488 case LPFC_LINK_SPEED_256GHZ: 3489 break; 3490 default: 3491 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3492 break; 3493 } 3494 } 3495 3496 if (phba->fc_topology && 3497 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3498 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3499 "3314 Toplogy changed was 0x%x is 0x%x\n", 3500 phba->fc_topology, 3501 bf_get(lpfc_mbx_read_top_topology, la)); 3502 phba->fc_topology_changed = 1; 3503 } 3504 3505 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3506 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA); 3507 3508 shost = lpfc_shost_from_vport(vport); 3509 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3510 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3511 3512 /* if npiv is enabled and this adapter supports npiv log 3513 * a message that npiv is not supported in this topology 3514 */ 3515 if (phba->cfg_enable_npiv && phba->max_vpi) 3516 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3517 "1309 Link Up Event npiv not supported in loop " 3518 "topology\n"); 3519 /* Get Loop Map information */ 3520 if (bf_get(lpfc_mbx_read_top_il, la)) 3521 fc_flags |= FC_LBIT; 3522 3523 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3524 i = la->lilpBde64.tus.f.bdeSize; 3525 3526 if (i == 0) { 3527 phba->alpa_map[0] = 0; 3528 } else { 3529 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3530 int numalpa, j, k; 3531 union { 3532 uint8_t pamap[16]; 3533 struct { 3534 uint32_t wd1; 3535 uint32_t wd2; 3536 uint32_t wd3; 3537 uint32_t wd4; 3538 } pa; 3539 } un; 3540 numalpa = phba->alpa_map[0]; 3541 j = 0; 3542 while (j < numalpa) { 3543 memset(un.pamap, 0, 16); 3544 for (k = 1; j < numalpa; k++) { 3545 un.pamap[k - 1] = 3546 phba->alpa_map[j + 1]; 3547 j++; 3548 if (k == 16) 3549 break; 3550 } 3551 /* Link Up Event ALPA map */ 3552 lpfc_printf_log(phba, 3553 KERN_WARNING, 3554 LOG_LINK_EVENT, 3555 "1304 Link Up Event " 3556 "ALPA map Data: x%x " 3557 "x%x x%x x%x\n", 3558 un.pa.wd1, un.pa.wd2, 3559 un.pa.wd3, un.pa.wd4); 3560 } 3561 } 3562 } 3563 } else { 3564 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3565 if (phba->max_vpi && phba->cfg_enable_npiv && 3566 (phba->sli_rev >= LPFC_SLI_REV3)) 3567 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3568 } 3569 vport->fc_myDID = phba->fc_pref_DID; 3570 fc_flags |= FC_LBIT; 3571 } 3572 spin_unlock_irqrestore(&phba->hbalock, iflags); 3573 3574 if (fc_flags) { 3575 spin_lock_irqsave(shost->host_lock, iflags); 3576 vport->fc_flag |= fc_flags; 3577 spin_unlock_irqrestore(shost->host_lock, iflags); 3578 } 3579 3580 lpfc_linkup(phba); 3581 sparam_mbox = NULL; 3582 3583 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3584 if (!sparam_mbox) 3585 goto out; 3586 3587 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3588 if (rc) { 3589 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3590 goto out; 3591 } 3592 sparam_mbox->vport = vport; 3593 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3594 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3595 if (rc == MBX_NOT_FINISHED) { 3596 lpfc_mbox_rsrc_cleanup(phba, sparam_mbox, MBOX_THD_UNLOCKED); 3597 goto out; 3598 } 3599 3600 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3601 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3602 if (!cfglink_mbox) 3603 goto out; 3604 vport->port_state = LPFC_LOCAL_CFG_LINK; 3605 lpfc_config_link(phba, cfglink_mbox); 3606 cfglink_mbox->vport = vport; 3607 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3608 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3609 if (rc == MBX_NOT_FINISHED) { 3610 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3611 goto out; 3612 } 3613 } else { 3614 vport->port_state = LPFC_VPORT_UNKNOWN; 3615 /* 3616 * Add the driver's default FCF record at FCF index 0 now. This 3617 * is phase 1 implementation that support FCF index 0 and driver 3618 * defaults. 3619 */ 3620 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3621 fcf_record = kzalloc(sizeof(struct fcf_record), 3622 GFP_KERNEL); 3623 if (unlikely(!fcf_record)) { 3624 lpfc_printf_log(phba, KERN_ERR, 3625 LOG_TRACE_EVENT, 3626 "2554 Could not allocate memory for " 3627 "fcf record\n"); 3628 rc = -ENODEV; 3629 goto out; 3630 } 3631 3632 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3633 LPFC_FCOE_FCF_DEF_INDEX); 3634 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3635 if (unlikely(rc)) { 3636 lpfc_printf_log(phba, KERN_ERR, 3637 LOG_TRACE_EVENT, 3638 "2013 Could not manually add FCF " 3639 "record 0, status %d\n", rc); 3640 rc = -ENODEV; 3641 kfree(fcf_record); 3642 goto out; 3643 } 3644 kfree(fcf_record); 3645 } 3646 /* 3647 * The driver is expected to do FIP/FCF. Call the port 3648 * and get the FCF Table. 3649 */ 3650 spin_lock_irqsave(&phba->hbalock, iflags); 3651 if (phba->hba_flag & FCF_TS_INPROG) { 3652 spin_unlock_irqrestore(&phba->hbalock, iflags); 3653 return; 3654 } 3655 /* This is the initial FCF discovery scan */ 3656 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3657 spin_unlock_irqrestore(&phba->hbalock, iflags); 3658 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3659 "2778 Start FCF table scan at linkup\n"); 3660 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3661 LPFC_FCOE_FCF_GET_FIRST); 3662 if (rc) { 3663 spin_lock_irqsave(&phba->hbalock, iflags); 3664 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3665 spin_unlock_irqrestore(&phba->hbalock, iflags); 3666 goto out; 3667 } 3668 /* Reset FCF roundrobin bmask for new discovery */ 3669 lpfc_sli4_clear_fcf_rr_bmask(phba); 3670 } 3671 3672 /* Prepare for LINK up registrations */ 3673 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3674 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3675 init_utsname()->nodename); 3676 return; 3677 out: 3678 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3679 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3680 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3681 vport->port_state, sparam_mbox, cfglink_mbox); 3682 lpfc_issue_clear_la(phba, vport); 3683 return; 3684 } 3685 3686 static void 3687 lpfc_enable_la(struct lpfc_hba *phba) 3688 { 3689 uint32_t control; 3690 struct lpfc_sli *psli = &phba->sli; 3691 spin_lock_irq(&phba->hbalock); 3692 psli->sli_flag |= LPFC_PROCESS_LA; 3693 if (phba->sli_rev <= LPFC_SLI_REV3) { 3694 control = readl(phba->HCregaddr); 3695 control |= HC_LAINT_ENA; 3696 writel(control, phba->HCregaddr); 3697 readl(phba->HCregaddr); /* flush */ 3698 } 3699 spin_unlock_irq(&phba->hbalock); 3700 } 3701 3702 static void 3703 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3704 { 3705 lpfc_linkdown(phba); 3706 lpfc_enable_la(phba); 3707 lpfc_unregister_unused_fcf(phba); 3708 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3709 } 3710 3711 3712 /* 3713 * This routine handles processing a READ_TOPOLOGY mailbox 3714 * command upon completion. It is setup in the LPFC_MBOXQ 3715 * as the completion routine when the command is 3716 * handed off to the SLI layer. SLI4 only. 3717 */ 3718 void 3719 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3720 { 3721 struct lpfc_vport *vport = pmb->vport; 3722 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3723 struct lpfc_mbx_read_top *la; 3724 struct lpfc_sli_ring *pring; 3725 MAILBOX_t *mb = &pmb->u.mb; 3726 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3727 uint8_t attn_type; 3728 unsigned long iflags; 3729 3730 /* Unblock ELS traffic */ 3731 pring = lpfc_phba_elsring(phba); 3732 if (pring) 3733 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3734 3735 /* Check for error */ 3736 if (mb->mbxStatus) { 3737 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3738 "1307 READ_LA mbox error x%x state x%x\n", 3739 mb->mbxStatus, vport->port_state); 3740 lpfc_mbx_issue_link_down(phba); 3741 phba->link_state = LPFC_HBA_ERROR; 3742 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3743 } 3744 3745 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3746 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3747 3748 memcpy(&phba->alpa_map[0], mp->virt, 128); 3749 3750 spin_lock_irqsave(shost->host_lock, iflags); 3751 if (bf_get(lpfc_mbx_read_top_pb, la)) 3752 vport->fc_flag |= FC_BYPASSED_MODE; 3753 else 3754 vport->fc_flag &= ~FC_BYPASSED_MODE; 3755 spin_unlock_irqrestore(shost->host_lock, iflags); 3756 3757 if (phba->fc_eventTag <= la->eventTag) { 3758 phba->fc_stat.LinkMultiEvent++; 3759 if (attn_type == LPFC_ATT_LINK_UP) 3760 if (phba->fc_eventTag != 0) 3761 lpfc_linkdown(phba); 3762 } 3763 3764 phba->fc_eventTag = la->eventTag; 3765 phba->link_events++; 3766 if (attn_type == LPFC_ATT_LINK_UP) { 3767 phba->fc_stat.LinkUp++; 3768 if (phba->link_flag & LS_LOOPBACK_MODE) { 3769 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3770 "1306 Link Up Event in loop back mode " 3771 "x%x received Data: x%x x%x x%x x%x\n", 3772 la->eventTag, phba->fc_eventTag, 3773 bf_get(lpfc_mbx_read_top_alpa_granted, 3774 la), 3775 bf_get(lpfc_mbx_read_top_link_spd, la), 3776 phba->alpa_map[0]); 3777 } else { 3778 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3779 "1303 Link Up Event x%x received " 3780 "Data: x%x x%x x%x x%x x%x\n", 3781 la->eventTag, phba->fc_eventTag, 3782 bf_get(lpfc_mbx_read_top_alpa_granted, 3783 la), 3784 bf_get(lpfc_mbx_read_top_link_spd, la), 3785 phba->alpa_map[0], 3786 bf_get(lpfc_mbx_read_top_fa, la)); 3787 } 3788 lpfc_mbx_process_link_up(phba, la); 3789 3790 if (phba->cmf_active_mode != LPFC_CFG_OFF) 3791 lpfc_cmf_signal_init(phba); 3792 3793 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3794 attn_type == LPFC_ATT_UNEXP_WWPN) { 3795 phba->fc_stat.LinkDown++; 3796 if (phba->link_flag & LS_LOOPBACK_MODE) 3797 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3798 "1308 Link Down Event in loop back mode " 3799 "x%x received " 3800 "Data: x%x x%x x%x\n", 3801 la->eventTag, phba->fc_eventTag, 3802 phba->pport->port_state, vport->fc_flag); 3803 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3804 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3805 "1313 Link Down Unexpected FA WWPN Event x%x " 3806 "received Data: x%x x%x x%x x%x\n", 3807 la->eventTag, phba->fc_eventTag, 3808 phba->pport->port_state, vport->fc_flag, 3809 bf_get(lpfc_mbx_read_top_fa, la)); 3810 else 3811 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3812 "1305 Link Down Event x%x received " 3813 "Data: x%x x%x x%x x%x\n", 3814 la->eventTag, phba->fc_eventTag, 3815 phba->pport->port_state, vport->fc_flag, 3816 bf_get(lpfc_mbx_read_top_fa, la)); 3817 lpfc_mbx_issue_link_down(phba); 3818 } 3819 3820 if ((phba->sli_rev < LPFC_SLI_REV4) && 3821 bf_get(lpfc_mbx_read_top_fa, la)) 3822 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3823 "1311 fa %d\n", 3824 bf_get(lpfc_mbx_read_top_fa, la)); 3825 3826 lpfc_mbx_cmpl_read_topology_free_mbuf: 3827 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3828 } 3829 3830 /* 3831 * This routine handles processing a REG_LOGIN mailbox 3832 * command upon completion. It is setup in the LPFC_MBOXQ 3833 * as the completion routine when the command is 3834 * handed off to the SLI layer. 3835 */ 3836 void 3837 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3838 { 3839 struct lpfc_vport *vport = pmb->vport; 3840 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3841 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3842 3843 /* The driver calls the state machine with the pmb pointer 3844 * but wants to make sure a stale ctx_buf isn't acted on. 3845 * The ctx_buf is restored later and cleaned up. 3846 */ 3847 pmb->ctx_buf = NULL; 3848 pmb->ctx_ndlp = NULL; 3849 3850 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY, 3851 "0002 rpi:%x DID:%x flg:%x %d x%px\n", 3852 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3853 kref_read(&ndlp->kref), 3854 ndlp); 3855 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3856 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3857 3858 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3859 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3860 /* We rcvd a rscn after issuing this 3861 * mbox reg login, we may have cycled 3862 * back through the state and be 3863 * back at reg login state so this 3864 * mbox needs to be ignored becase 3865 * there is another reg login in 3866 * process. 3867 */ 3868 spin_lock_irq(&ndlp->lock); 3869 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3870 spin_unlock_irq(&ndlp->lock); 3871 3872 /* 3873 * We cannot leave the RPI registered because 3874 * if we go thru discovery again for this ndlp 3875 * a subsequent REG_RPI will fail. 3876 */ 3877 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3878 lpfc_unreg_rpi(vport, ndlp); 3879 } 3880 3881 /* Call state machine */ 3882 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3883 pmb->ctx_buf = mp; 3884 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3885 3886 /* decrement the node reference count held for this callback 3887 * function. 3888 */ 3889 lpfc_nlp_put(ndlp); 3890 3891 return; 3892 } 3893 3894 static void 3895 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3896 { 3897 MAILBOX_t *mb = &pmb->u.mb; 3898 struct lpfc_vport *vport = pmb->vport; 3899 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3900 3901 switch (mb->mbxStatus) { 3902 case 0x0011: 3903 case 0x0020: 3904 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3905 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3906 mb->mbxStatus); 3907 break; 3908 /* If VPI is busy, reset the HBA */ 3909 case 0x9700: 3910 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3911 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3912 vport->vpi, mb->mbxStatus); 3913 if (!(phba->pport->load_flag & FC_UNLOADING)) 3914 lpfc_workq_post_event(phba, NULL, NULL, 3915 LPFC_EVT_RESET_HBA); 3916 } 3917 spin_lock_irq(shost->host_lock); 3918 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3919 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3920 spin_unlock_irq(shost->host_lock); 3921 mempool_free(pmb, phba->mbox_mem_pool); 3922 lpfc_cleanup_vports_rrqs(vport, NULL); 3923 /* 3924 * This shost reference might have been taken at the beginning of 3925 * lpfc_vport_delete() 3926 */ 3927 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3928 scsi_host_put(shost); 3929 } 3930 3931 int 3932 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3933 { 3934 struct lpfc_hba *phba = vport->phba; 3935 LPFC_MBOXQ_t *mbox; 3936 int rc; 3937 3938 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3939 if (!mbox) 3940 return 1; 3941 3942 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3943 mbox->vport = vport; 3944 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3945 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3946 if (rc == MBX_NOT_FINISHED) { 3947 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3948 "1800 Could not issue unreg_vpi\n"); 3949 mempool_free(mbox, phba->mbox_mem_pool); 3950 return rc; 3951 } 3952 return 0; 3953 } 3954 3955 static void 3956 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3957 { 3958 struct lpfc_vport *vport = pmb->vport; 3959 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3960 MAILBOX_t *mb = &pmb->u.mb; 3961 3962 switch (mb->mbxStatus) { 3963 case 0x0011: 3964 case 0x9601: 3965 case 0x9602: 3966 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3967 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3968 mb->mbxStatus); 3969 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3970 spin_lock_irq(shost->host_lock); 3971 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3972 spin_unlock_irq(shost->host_lock); 3973 vport->fc_myDID = 0; 3974 3975 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3976 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3977 if (phba->nvmet_support) 3978 lpfc_nvmet_update_targetport(phba); 3979 else 3980 lpfc_nvme_update_localport(vport); 3981 } 3982 goto out; 3983 } 3984 3985 spin_lock_irq(shost->host_lock); 3986 vport->vpi_state |= LPFC_VPI_REGISTERED; 3987 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3988 spin_unlock_irq(shost->host_lock); 3989 vport->num_disc_nodes = 0; 3990 /* go thru NPR list and issue ELS PLOGIs */ 3991 if (vport->fc_npr_cnt) 3992 lpfc_els_disc_plogi(vport); 3993 3994 if (!vport->num_disc_nodes) { 3995 spin_lock_irq(shost->host_lock); 3996 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3997 spin_unlock_irq(shost->host_lock); 3998 lpfc_can_disctmo(vport); 3999 } 4000 vport->port_state = LPFC_VPORT_READY; 4001 4002 out: 4003 mempool_free(pmb, phba->mbox_mem_pool); 4004 return; 4005 } 4006 4007 /** 4008 * lpfc_create_static_vport - Read HBA config region to create static vports. 4009 * @phba: pointer to lpfc hba data structure. 4010 * 4011 * This routine issue a DUMP mailbox command for config region 22 to get 4012 * the list of static vports to be created. The function create vports 4013 * based on the information returned from the HBA. 4014 **/ 4015 void 4016 lpfc_create_static_vport(struct lpfc_hba *phba) 4017 { 4018 LPFC_MBOXQ_t *pmb = NULL; 4019 MAILBOX_t *mb; 4020 struct static_vport_info *vport_info; 4021 int mbx_wait_rc = 0, i; 4022 struct fc_vport_identifiers vport_id; 4023 struct fc_vport *new_fc_vport; 4024 struct Scsi_Host *shost; 4025 struct lpfc_vport *vport; 4026 uint16_t offset = 0; 4027 uint8_t *vport_buff; 4028 struct lpfc_dmabuf *mp; 4029 uint32_t byte_count = 0; 4030 4031 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4032 if (!pmb) { 4033 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4034 "0542 lpfc_create_static_vport failed to" 4035 " allocate mailbox memory\n"); 4036 return; 4037 } 4038 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 4039 mb = &pmb->u.mb; 4040 4041 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 4042 if (!vport_info) { 4043 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4044 "0543 lpfc_create_static_vport failed to" 4045 " allocate vport_info\n"); 4046 mempool_free(pmb, phba->mbox_mem_pool); 4047 return; 4048 } 4049 4050 vport_buff = (uint8_t *) vport_info; 4051 do { 4052 /* While loop iteration forces a free dma buffer from 4053 * the previous loop because the mbox is reused and 4054 * the dump routine is a single-use construct. 4055 */ 4056 if (pmb->ctx_buf) { 4057 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 4058 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4059 kfree(mp); 4060 pmb->ctx_buf = NULL; 4061 } 4062 if (lpfc_dump_static_vport(phba, pmb, offset)) 4063 goto out; 4064 4065 pmb->vport = phba->pport; 4066 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 4067 LPFC_MBOX_TMO); 4068 4069 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 4070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4071 "0544 lpfc_create_static_vport failed to" 4072 " issue dump mailbox command ret 0x%x " 4073 "status 0x%x\n", 4074 mbx_wait_rc, mb->mbxStatus); 4075 goto out; 4076 } 4077 4078 if (phba->sli_rev == LPFC_SLI_REV4) { 4079 byte_count = pmb->u.mqe.un.mb_words[5]; 4080 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 4081 if (byte_count > sizeof(struct static_vport_info) - 4082 offset) 4083 byte_count = sizeof(struct static_vport_info) 4084 - offset; 4085 memcpy(vport_buff + offset, mp->virt, byte_count); 4086 offset += byte_count; 4087 } else { 4088 if (mb->un.varDmp.word_cnt > 4089 sizeof(struct static_vport_info) - offset) 4090 mb->un.varDmp.word_cnt = 4091 sizeof(struct static_vport_info) 4092 - offset; 4093 byte_count = mb->un.varDmp.word_cnt; 4094 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 4095 vport_buff + offset, 4096 byte_count); 4097 4098 offset += byte_count; 4099 } 4100 4101 } while (byte_count && 4102 offset < sizeof(struct static_vport_info)); 4103 4104 4105 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 4106 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 4107 != VPORT_INFO_REV)) { 4108 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4109 "0545 lpfc_create_static_vport bad" 4110 " information header 0x%x 0x%x\n", 4111 le32_to_cpu(vport_info->signature), 4112 le32_to_cpu(vport_info->rev) & 4113 VPORT_INFO_REV_MASK); 4114 4115 goto out; 4116 } 4117 4118 shost = lpfc_shost_from_vport(phba->pport); 4119 4120 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 4121 memset(&vport_id, 0, sizeof(vport_id)); 4122 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 4123 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 4124 if (!vport_id.port_name || !vport_id.node_name) 4125 continue; 4126 4127 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 4128 vport_id.vport_type = FC_PORTTYPE_NPIV; 4129 vport_id.disable = false; 4130 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 4131 4132 if (!new_fc_vport) { 4133 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4134 "0546 lpfc_create_static_vport failed to" 4135 " create vport\n"); 4136 continue; 4137 } 4138 4139 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 4140 vport->vport_flag |= STATIC_VPORT; 4141 } 4142 4143 out: 4144 kfree(vport_info); 4145 if (mbx_wait_rc != MBX_TIMEOUT) 4146 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4147 } 4148 4149 /* 4150 * This routine handles processing a Fabric REG_LOGIN mailbox 4151 * command upon completion. It is setup in the LPFC_MBOXQ 4152 * as the completion routine when the command is 4153 * handed off to the SLI layer. 4154 */ 4155 void 4156 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4157 { 4158 struct lpfc_vport *vport = pmb->vport; 4159 MAILBOX_t *mb = &pmb->u.mb; 4160 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4161 struct Scsi_Host *shost; 4162 4163 pmb->ctx_ndlp = NULL; 4164 4165 if (mb->mbxStatus) { 4166 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4167 "0258 Register Fabric login error: 0x%x\n", 4168 mb->mbxStatus); 4169 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4170 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4171 /* FLOGI failed, use loop map to make discovery list */ 4172 lpfc_disc_list_loopmap(vport); 4173 4174 /* Start discovery */ 4175 lpfc_disc_start(vport); 4176 /* Decrement the reference count to ndlp after the 4177 * reference to the ndlp are done. 4178 */ 4179 lpfc_nlp_put(ndlp); 4180 return; 4181 } 4182 4183 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4184 /* Decrement the reference count to ndlp after the reference 4185 * to the ndlp are done. 4186 */ 4187 lpfc_nlp_put(ndlp); 4188 return; 4189 } 4190 4191 if (phba->sli_rev < LPFC_SLI_REV4) 4192 ndlp->nlp_rpi = mb->un.varWords[0]; 4193 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4194 ndlp->nlp_type |= NLP_FABRIC; 4195 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4196 4197 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 4198 /* when physical port receive logo donot start 4199 * vport discovery */ 4200 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 4201 lpfc_start_fdiscs(phba); 4202 else { 4203 shost = lpfc_shost_from_vport(vport); 4204 spin_lock_irq(shost->host_lock); 4205 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 4206 spin_unlock_irq(shost->host_lock); 4207 } 4208 lpfc_do_scr_ns_plogi(phba, vport); 4209 } 4210 4211 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4212 4213 /* Drop the reference count from the mbox at the end after 4214 * all the current reference to the ndlp have been done. 4215 */ 4216 lpfc_nlp_put(ndlp); 4217 return; 4218 } 4219 4220 /* 4221 * This routine will issue a GID_FT for each FC4 Type supported 4222 * by the driver. ALL GID_FTs must complete before discovery is started. 4223 */ 4224 int 4225 lpfc_issue_gidft(struct lpfc_vport *vport) 4226 { 4227 /* Good status, issue CT Request to NameServer */ 4228 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4229 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 4230 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 4231 /* Cannot issue NameServer FCP Query, so finish up 4232 * discovery 4233 */ 4234 lpfc_printf_vlog(vport, KERN_ERR, 4235 LOG_TRACE_EVENT, 4236 "0604 %s FC TYPE %x %s\n", 4237 "Failed to issue GID_FT to ", 4238 FC_TYPE_FCP, 4239 "Finishing discovery."); 4240 return 0; 4241 } 4242 vport->gidft_inp++; 4243 } 4244 4245 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4246 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 4247 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 4248 /* Cannot issue NameServer NVME Query, so finish up 4249 * discovery 4250 */ 4251 lpfc_printf_vlog(vport, KERN_ERR, 4252 LOG_TRACE_EVENT, 4253 "0605 %s FC_TYPE %x %s %d\n", 4254 "Failed to issue GID_FT to ", 4255 FC_TYPE_NVME, 4256 "Finishing discovery: gidftinp ", 4257 vport->gidft_inp); 4258 if (vport->gidft_inp == 0) 4259 return 0; 4260 } else 4261 vport->gidft_inp++; 4262 } 4263 return vport->gidft_inp; 4264 } 4265 4266 /** 4267 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 4268 * @vport: The virtual port for which this call is being executed. 4269 * 4270 * This routine will issue a GID_PT to get a list of all N_Ports 4271 * 4272 * Return value : 4273 * 0 - Failure to issue a GID_PT 4274 * 1 - GID_PT issued 4275 **/ 4276 int 4277 lpfc_issue_gidpt(struct lpfc_vport *vport) 4278 { 4279 /* Good status, issue CT Request to NameServer */ 4280 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4281 /* Cannot issue NameServer FCP Query, so finish up 4282 * discovery 4283 */ 4284 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4285 "0606 %s Port TYPE %x %s\n", 4286 "Failed to issue GID_PT to ", 4287 GID_PT_N_PORT, 4288 "Finishing discovery."); 4289 return 0; 4290 } 4291 vport->gidft_inp++; 4292 return 1; 4293 } 4294 4295 /* 4296 * This routine handles processing a NameServer REG_LOGIN mailbox 4297 * command upon completion. It is setup in the LPFC_MBOXQ 4298 * as the completion routine when the command is 4299 * handed off to the SLI layer. 4300 */ 4301 void 4302 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4303 { 4304 MAILBOX_t *mb = &pmb->u.mb; 4305 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4306 struct lpfc_vport *vport = pmb->vport; 4307 int rc; 4308 4309 pmb->ctx_ndlp = NULL; 4310 vport->gidft_inp = 0; 4311 4312 if (mb->mbxStatus) { 4313 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4314 "0260 Register NameServer error: 0x%x\n", 4315 mb->mbxStatus); 4316 4317 out: 4318 /* decrement the node reference count held for this 4319 * callback function. 4320 */ 4321 lpfc_nlp_put(ndlp); 4322 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4323 4324 /* If the node is not registered with the scsi or nvme 4325 * transport, remove the fabric node. The failed reg_login 4326 * is terminal. 4327 */ 4328 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 4329 spin_lock_irq(&ndlp->lock); 4330 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 4331 spin_unlock_irq(&ndlp->lock); 4332 lpfc_nlp_not_used(ndlp); 4333 } 4334 4335 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4336 /* 4337 * RegLogin failed, use loop map to make discovery 4338 * list 4339 */ 4340 lpfc_disc_list_loopmap(vport); 4341 4342 /* Start discovery */ 4343 lpfc_disc_start(vport); 4344 return; 4345 } 4346 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4347 return; 4348 } 4349 4350 if (phba->sli_rev < LPFC_SLI_REV4) 4351 ndlp->nlp_rpi = mb->un.varWords[0]; 4352 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4353 ndlp->nlp_type |= NLP_FABRIC; 4354 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4355 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4356 "0003 rpi:%x DID:%x flg:%x %d x%px\n", 4357 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4358 kref_read(&ndlp->kref), 4359 ndlp); 4360 4361 if (vport->port_state < LPFC_VPORT_READY) { 4362 /* Link up discovery requires Fabric registration. */ 4363 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4364 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4365 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4366 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4367 4368 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4369 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4370 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4371 4372 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4373 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4374 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4375 FC_TYPE_NVME); 4376 4377 /* Issue SCR just before NameServer GID_FT Query */ 4378 lpfc_issue_els_scr(vport, 0); 4379 4380 /* Link was bounced or a Fabric LOGO occurred. Start EDC 4381 * with initial FW values provided the congestion mode is 4382 * not off. Note that signals may or may not be supported 4383 * by the adapter but FPIN is provided by default for 1 4384 * or both missing signals support. 4385 */ 4386 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 4387 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 4388 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 4389 rc = lpfc_issue_els_edc(vport, 0); 4390 lpfc_printf_log(phba, KERN_INFO, 4391 LOG_INIT | LOG_ELS | LOG_DISCOVERY, 4392 "4220 EDC issue error x%x, Data: x%x\n", 4393 rc, phba->cgn_init_reg_signal); 4394 } else { 4395 lpfc_issue_els_rdf(vport, 0); 4396 } 4397 } 4398 4399 vport->fc_ns_retry = 0; 4400 if (lpfc_issue_gidft(vport) == 0) 4401 goto out; 4402 4403 /* 4404 * At this point in time we may need to wait for multiple 4405 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4406 * 4407 * decrement the node reference count held for this 4408 * callback function. 4409 */ 4410 lpfc_nlp_put(ndlp); 4411 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4412 return; 4413 } 4414 4415 /* 4416 * This routine handles processing a Fabric Controller REG_LOGIN mailbox 4417 * command upon completion. It is setup in the LPFC_MBOXQ 4418 * as the completion routine when the command is handed off to the SLI layer. 4419 */ 4420 void 4421 lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4422 { 4423 struct lpfc_vport *vport = pmb->vport; 4424 MAILBOX_t *mb = &pmb->u.mb; 4425 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4426 4427 pmb->ctx_ndlp = NULL; 4428 if (mb->mbxStatus) { 4429 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4430 "0933 %s: Register FC login error: 0x%x\n", 4431 __func__, mb->mbxStatus); 4432 goto out; 4433 } 4434 4435 lpfc_check_nlp_post_devloss(vport, ndlp); 4436 4437 if (phba->sli_rev < LPFC_SLI_REV4) 4438 ndlp->nlp_rpi = mb->un.varWords[0]; 4439 4440 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4441 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n", 4442 __func__, ndlp->nlp_DID, ndlp->nlp_rpi, 4443 ndlp->nlp_state); 4444 4445 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4446 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 4447 ndlp->nlp_type |= NLP_FABRIC; 4448 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4449 4450 out: 4451 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4452 4453 /* Drop the reference count from the mbox at the end after 4454 * all the current reference to the ndlp have been done. 4455 */ 4456 lpfc_nlp_put(ndlp); 4457 } 4458 4459 static void 4460 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4461 { 4462 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4463 struct fc_rport *rport; 4464 struct lpfc_rport_data *rdata; 4465 struct fc_rport_identifiers rport_ids; 4466 struct lpfc_hba *phba = vport->phba; 4467 unsigned long flags; 4468 4469 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4470 return; 4471 4472 /* Remote port has reappeared. Re-register w/ FC transport */ 4473 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4474 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4475 rport_ids.port_id = ndlp->nlp_DID; 4476 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4477 4478 4479 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4480 "rport add: did:x%x flg:x%x type x%x", 4481 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4482 4483 /* Don't add the remote port if unloading. */ 4484 if (vport->load_flag & FC_UNLOADING) 4485 return; 4486 4487 /* 4488 * Disassociate any older association between this ndlp and rport 4489 */ 4490 if (ndlp->rport) { 4491 rdata = ndlp->rport->dd_data; 4492 rdata->pnode = NULL; 4493 } 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 4546 static void 4547 lpfc_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 4569 static void 4570 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4571 { 4572 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4573 unsigned long iflags; 4574 4575 spin_lock_irqsave(shost->host_lock, iflags); 4576 switch (state) { 4577 case NLP_STE_UNUSED_NODE: 4578 vport->fc_unused_cnt += count; 4579 break; 4580 case NLP_STE_PLOGI_ISSUE: 4581 vport->fc_plogi_cnt += count; 4582 break; 4583 case NLP_STE_ADISC_ISSUE: 4584 vport->fc_adisc_cnt += count; 4585 break; 4586 case NLP_STE_REG_LOGIN_ISSUE: 4587 vport->fc_reglogin_cnt += count; 4588 break; 4589 case NLP_STE_PRLI_ISSUE: 4590 vport->fc_prli_cnt += count; 4591 break; 4592 case NLP_STE_UNMAPPED_NODE: 4593 vport->fc_unmap_cnt += count; 4594 break; 4595 case NLP_STE_MAPPED_NODE: 4596 vport->fc_map_cnt += count; 4597 break; 4598 case NLP_STE_NPR_NODE: 4599 if (vport->fc_npr_cnt == 0 && count == -1) 4600 vport->fc_npr_cnt = 0; 4601 else 4602 vport->fc_npr_cnt += count; 4603 break; 4604 } 4605 spin_unlock_irqrestore(shost->host_lock, iflags); 4606 } 4607 4608 /* Register a node with backend if not already done */ 4609 void 4610 lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4611 { 4612 unsigned long iflags; 4613 4614 lpfc_check_nlp_post_devloss(vport, ndlp); 4615 4616 spin_lock_irqsave(&ndlp->lock, iflags); 4617 if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) { 4618 /* Already registered with backend, trigger rescan */ 4619 spin_unlock_irqrestore(&ndlp->lock, iflags); 4620 4621 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD && 4622 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) { 4623 lpfc_nvme_rescan_port(vport, ndlp); 4624 } 4625 return; 4626 } 4627 4628 ndlp->fc4_xpt_flags |= NLP_XPT_REGD; 4629 spin_unlock_irqrestore(&ndlp->lock, iflags); 4630 4631 if (lpfc_valid_xpt_node(ndlp)) { 4632 vport->phba->nport_event_cnt++; 4633 /* 4634 * Tell the fc transport about the port, if we haven't 4635 * already. If we have, and it's a scsi entity, be 4636 */ 4637 lpfc_register_remote_port(vport, ndlp); 4638 } 4639 4640 /* We are done if we do not have any NVME remote node */ 4641 if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME)) 4642 return; 4643 4644 /* Notify the NVME transport of this new rport. */ 4645 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4646 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4647 if (vport->phba->nvmet_support == 0) { 4648 /* Register this rport with the transport. 4649 * Only NVME Target Rports are registered with 4650 * the transport. 4651 */ 4652 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4653 vport->phba->nport_event_cnt++; 4654 lpfc_nvme_register_port(vport, ndlp); 4655 } 4656 } else { 4657 /* Just take an NDLP ref count since the 4658 * target does not register rports. 4659 */ 4660 lpfc_nlp_get(ndlp); 4661 } 4662 } 4663 } 4664 4665 /* Unregister a node with backend if not already done */ 4666 void 4667 lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4668 { 4669 unsigned long iflags; 4670 4671 spin_lock_irqsave(&ndlp->lock, iflags); 4672 if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) { 4673 spin_unlock_irqrestore(&ndlp->lock, iflags); 4674 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4675 "0999 %s Not regd: ndlp x%px rport x%px DID " 4676 "x%x FLG x%x XPT x%x\n", 4677 __func__, ndlp, ndlp->rport, ndlp->nlp_DID, 4678 ndlp->nlp_flag, ndlp->fc4_xpt_flags); 4679 return; 4680 } 4681 4682 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; 4683 spin_unlock_irqrestore(&ndlp->lock, iflags); 4684 4685 if (ndlp->rport && 4686 ndlp->fc4_xpt_flags & SCSI_XPT_REGD) { 4687 vport->phba->nport_event_cnt++; 4688 lpfc_unregister_remote_port(ndlp); 4689 } else if (!ndlp->rport) { 4690 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4691 "1999 %s NDLP in devloss x%px DID x%x FLG x%x" 4692 " XPT x%x refcnt %d\n", 4693 __func__, ndlp, ndlp->nlp_DID, ndlp->nlp_flag, 4694 ndlp->fc4_xpt_flags, 4695 kref_read(&ndlp->kref)); 4696 } 4697 4698 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) { 4699 vport->phba->nport_event_cnt++; 4700 if (vport->phba->nvmet_support == 0) { 4701 /* Start devloss if target. */ 4702 if (ndlp->nlp_type & NLP_NVME_TARGET) 4703 lpfc_nvme_unregister_port(vport, ndlp); 4704 } else { 4705 /* NVMET has no upcall. */ 4706 lpfc_nlp_put(ndlp); 4707 } 4708 } 4709 4710 } 4711 4712 /* 4713 * Adisc state change handling 4714 */ 4715 static void 4716 lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4717 int new_state) 4718 { 4719 switch (new_state) { 4720 /* 4721 * Any state to ADISC_ISSUE 4722 * Do nothing, adisc cmpl handling will trigger state changes 4723 */ 4724 case NLP_STE_ADISC_ISSUE: 4725 break; 4726 4727 /* 4728 * ADISC_ISSUE to mapped states 4729 * Trigger a registration with backend, it will be nop if 4730 * already registered 4731 */ 4732 case NLP_STE_UNMAPPED_NODE: 4733 ndlp->nlp_type |= NLP_FC_NODE; 4734 fallthrough; 4735 case NLP_STE_MAPPED_NODE: 4736 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4737 lpfc_nlp_reg_node(vport, ndlp); 4738 break; 4739 4740 /* 4741 * ADISC_ISSUE to non-mapped states 4742 * We are moving from ADISC_ISSUE to a non-mapped state because 4743 * ADISC failed, we would have skipped unregistering with 4744 * backend, attempt it now 4745 */ 4746 case NLP_STE_NPR_NODE: 4747 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4748 fallthrough; 4749 default: 4750 lpfc_nlp_unreg_node(vport, ndlp); 4751 break; 4752 } 4753 4754 } 4755 4756 static void 4757 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4758 int old_state, int new_state) 4759 { 4760 /* Trap ADISC changes here */ 4761 if (new_state == NLP_STE_ADISC_ISSUE || 4762 old_state == NLP_STE_ADISC_ISSUE) { 4763 lpfc_handle_adisc_state(vport, ndlp, new_state); 4764 return; 4765 } 4766 4767 if (new_state == NLP_STE_UNMAPPED_NODE) { 4768 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4769 ndlp->nlp_type |= NLP_FC_NODE; 4770 } 4771 if (new_state == NLP_STE_MAPPED_NODE) 4772 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4773 if (new_state == NLP_STE_NPR_NODE) 4774 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4775 4776 /* Reg/Unreg for FCP and NVME Transport interface */ 4777 if ((old_state == NLP_STE_MAPPED_NODE || 4778 old_state == NLP_STE_UNMAPPED_NODE)) { 4779 /* For nodes marked for ADISC, Handle unreg in ADISC cmpl 4780 * if linkup. In linkdown do unreg_node 4781 */ 4782 if (!(ndlp->nlp_flag & NLP_NPR_ADISC) || 4783 !lpfc_is_link_up(vport->phba)) 4784 lpfc_nlp_unreg_node(vport, ndlp); 4785 } 4786 4787 if (new_state == NLP_STE_MAPPED_NODE || 4788 new_state == NLP_STE_UNMAPPED_NODE) 4789 lpfc_nlp_reg_node(vport, ndlp); 4790 4791 if ((new_state == NLP_STE_MAPPED_NODE) && 4792 (vport->stat_data_enabled)) { 4793 /* 4794 * A new target is discovered, if there is no buffer for 4795 * statistical data collection allocate buffer. 4796 */ 4797 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4798 sizeof(struct lpfc_scsicmd_bkt), 4799 GFP_KERNEL); 4800 4801 if (!ndlp->lat_data) 4802 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4803 "0286 lpfc_nlp_state_cleanup failed to " 4804 "allocate statistical data buffer DID " 4805 "0x%x\n", ndlp->nlp_DID); 4806 } 4807 /* 4808 * If the node just added to Mapped list was an FCP target, 4809 * but the remote port registration failed or assigned a target 4810 * id outside the presentable range - move the node to the 4811 * Unmapped List. 4812 */ 4813 if ((new_state == NLP_STE_MAPPED_NODE) && 4814 (ndlp->nlp_type & NLP_FCP_TARGET) && 4815 (!ndlp->rport || 4816 ndlp->rport->scsi_target_id == -1 || 4817 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4818 spin_lock_irq(&ndlp->lock); 4819 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4820 spin_unlock_irq(&ndlp->lock); 4821 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4822 } 4823 } 4824 4825 static char * 4826 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4827 { 4828 static char *states[] = { 4829 [NLP_STE_UNUSED_NODE] = "UNUSED", 4830 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4831 [NLP_STE_ADISC_ISSUE] = "ADISC", 4832 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4833 [NLP_STE_PRLI_ISSUE] = "PRLI", 4834 [NLP_STE_LOGO_ISSUE] = "LOGO", 4835 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4836 [NLP_STE_MAPPED_NODE] = "MAPPED", 4837 [NLP_STE_NPR_NODE] = "NPR", 4838 }; 4839 4840 if (state < NLP_STE_MAX_STATE && states[state]) 4841 strlcpy(buffer, states[state], size); 4842 else 4843 snprintf(buffer, size, "unknown (%d)", state); 4844 return buffer; 4845 } 4846 4847 void 4848 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4849 int state) 4850 { 4851 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4852 int old_state = ndlp->nlp_state; 4853 int node_dropped = ndlp->nlp_flag & NLP_DROPPED; 4854 char name1[16], name2[16]; 4855 4856 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4857 "0904 NPort state transition x%06x, %s -> %s\n", 4858 ndlp->nlp_DID, 4859 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4860 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4861 4862 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4863 "node statechg did:x%x old:%d ste:%d", 4864 ndlp->nlp_DID, old_state, state); 4865 4866 if (node_dropped && old_state == NLP_STE_UNUSED_NODE && 4867 state != NLP_STE_UNUSED_NODE) { 4868 ndlp->nlp_flag &= ~NLP_DROPPED; 4869 lpfc_nlp_get(ndlp); 4870 } 4871 4872 if (old_state == NLP_STE_NPR_NODE && 4873 state != NLP_STE_NPR_NODE) 4874 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4875 if (old_state == NLP_STE_UNMAPPED_NODE) { 4876 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4877 ndlp->nlp_type &= ~NLP_FC_NODE; 4878 } 4879 4880 if (list_empty(&ndlp->nlp_listp)) { 4881 spin_lock_irq(shost->host_lock); 4882 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4883 spin_unlock_irq(shost->host_lock); 4884 } else if (old_state) 4885 lpfc_nlp_counters(vport, old_state, -1); 4886 4887 ndlp->nlp_state = state; 4888 lpfc_nlp_counters(vport, state, 1); 4889 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4890 } 4891 4892 void 4893 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4894 { 4895 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4896 4897 if (list_empty(&ndlp->nlp_listp)) { 4898 spin_lock_irq(shost->host_lock); 4899 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4900 spin_unlock_irq(shost->host_lock); 4901 } 4902 } 4903 4904 void 4905 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4906 { 4907 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4908 4909 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4910 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4911 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4912 spin_lock_irq(shost->host_lock); 4913 list_del_init(&ndlp->nlp_listp); 4914 spin_unlock_irq(shost->host_lock); 4915 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4916 NLP_STE_UNUSED_NODE); 4917 } 4918 4919 /** 4920 * lpfc_initialize_node - Initialize all fields of node object 4921 * @vport: Pointer to Virtual Port object. 4922 * @ndlp: Pointer to FC node object. 4923 * @did: FC_ID of the node. 4924 * 4925 * This function is always called when node object need to be initialized. 4926 * It initializes all the fields of the node object. Although the reference 4927 * to phba from @ndlp can be obtained indirectly through it's reference to 4928 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4929 * to the life-span of the @ndlp might go beyond the existence of @vport as 4930 * the final release of ndlp is determined by its reference count. And, the 4931 * operation on @ndlp needs the reference to phba. 4932 **/ 4933 static inline void 4934 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4935 uint32_t did) 4936 { 4937 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4938 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4939 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4940 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp); 4941 4942 ndlp->nlp_DID = did; 4943 ndlp->vport = vport; 4944 ndlp->phba = vport->phba; 4945 ndlp->nlp_sid = NLP_NO_SID; 4946 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4947 kref_init(&ndlp->kref); 4948 atomic_set(&ndlp->cmd_pending, 0); 4949 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4950 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4951 } 4952 4953 void 4954 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4955 { 4956 /* 4957 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4958 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4959 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4960 * until ALL other outstanding threads have completed. We check 4961 * that the ndlp not already in the UNUSED state before we proceed. 4962 */ 4963 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4964 return; 4965 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4966 ndlp->nlp_flag |= NLP_DROPPED; 4967 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4968 lpfc_cleanup_vports_rrqs(vport, ndlp); 4969 lpfc_unreg_rpi(vport, ndlp); 4970 } 4971 4972 lpfc_nlp_put(ndlp); 4973 return; 4974 } 4975 4976 /* 4977 * Start / ReStart rescue timer for Discovery / RSCN handling 4978 */ 4979 void 4980 lpfc_set_disctmo(struct lpfc_vport *vport) 4981 { 4982 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4983 struct lpfc_hba *phba = vport->phba; 4984 uint32_t tmo; 4985 4986 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4987 /* For FAN, timeout should be greater than edtov */ 4988 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4989 } else { 4990 /* Normal discovery timeout should be > than ELS/CT timeout 4991 * FC spec states we need 3 * ratov for CT requests 4992 */ 4993 tmo = ((phba->fc_ratov * 3) + 3); 4994 } 4995 4996 4997 if (!timer_pending(&vport->fc_disctmo)) { 4998 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4999 "set disc timer: tmo:x%x state:x%x flg:x%x", 5000 tmo, vport->port_state, vport->fc_flag); 5001 } 5002 5003 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 5004 spin_lock_irq(shost->host_lock); 5005 vport->fc_flag |= FC_DISC_TMO; 5006 spin_unlock_irq(shost->host_lock); 5007 5008 /* Start Discovery Timer state <hba_state> */ 5009 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5010 "0247 Start Discovery Timer state x%x " 5011 "Data: x%x x%lx x%x x%x\n", 5012 vport->port_state, tmo, 5013 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 5014 vport->fc_adisc_cnt); 5015 5016 return; 5017 } 5018 5019 /* 5020 * Cancel rescue timer for Discovery / RSCN handling 5021 */ 5022 int 5023 lpfc_can_disctmo(struct lpfc_vport *vport) 5024 { 5025 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5026 unsigned long iflags; 5027 5028 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5029 "can disc timer: state:x%x rtry:x%x flg:x%x", 5030 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5031 5032 /* Turn off discovery timer if its running */ 5033 if (vport->fc_flag & FC_DISC_TMO || 5034 timer_pending(&vport->fc_disctmo)) { 5035 spin_lock_irqsave(shost->host_lock, iflags); 5036 vport->fc_flag &= ~FC_DISC_TMO; 5037 spin_unlock_irqrestore(shost->host_lock, iflags); 5038 del_timer_sync(&vport->fc_disctmo); 5039 spin_lock_irqsave(&vport->work_port_lock, iflags); 5040 vport->work_port_events &= ~WORKER_DISC_TMO; 5041 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 5042 } 5043 5044 /* Cancel Discovery Timer state <hba_state> */ 5045 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5046 "0248 Cancel Discovery Timer state x%x " 5047 "Data: x%x x%x x%x\n", 5048 vport->port_state, vport->fc_flag, 5049 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 5050 return 0; 5051 } 5052 5053 /* 5054 * Check specified ring for outstanding IOCB on the SLI queue 5055 * Return true if iocb matches the specified nport 5056 */ 5057 int 5058 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 5059 struct lpfc_sli_ring *pring, 5060 struct lpfc_iocbq *iocb, 5061 struct lpfc_nodelist *ndlp) 5062 { 5063 struct lpfc_vport *vport = ndlp->vport; 5064 u8 ulp_command; 5065 u16 ulp_context; 5066 u32 remote_id; 5067 5068 if (iocb->vport != vport) 5069 return 0; 5070 5071 ulp_command = get_job_cmnd(phba, iocb); 5072 ulp_context = get_job_ulpcontext(phba, iocb); 5073 remote_id = get_job_els_rsp64_did(phba, iocb); 5074 5075 if (pring->ringno == LPFC_ELS_RING) { 5076 switch (ulp_command) { 5077 case CMD_GEN_REQUEST64_CR: 5078 if (iocb->ndlp == ndlp) 5079 return 1; 5080 fallthrough; 5081 case CMD_ELS_REQUEST64_CR: 5082 if (remote_id == ndlp->nlp_DID) 5083 return 1; 5084 fallthrough; 5085 case CMD_XMIT_ELS_RSP64_CX: 5086 if (iocb->ndlp == ndlp) 5087 return 1; 5088 } 5089 } else if (pring->ringno == LPFC_FCP_RING) { 5090 /* Skip match check if waiting to relogin to FCP target */ 5091 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 5092 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 5093 return 0; 5094 } 5095 if (ulp_context == ndlp->nlp_rpi) 5096 return 1; 5097 } 5098 return 0; 5099 } 5100 5101 static void 5102 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 5103 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 5104 struct list_head *dequeue_list) 5105 { 5106 struct lpfc_iocbq *iocb, *next_iocb; 5107 5108 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5109 /* Check to see if iocb matches the nport */ 5110 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 5111 /* match, dequeue */ 5112 list_move_tail(&iocb->list, dequeue_list); 5113 } 5114 } 5115 5116 static void 5117 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 5118 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5119 { 5120 struct lpfc_sli *psli = &phba->sli; 5121 uint32_t i; 5122 5123 spin_lock_irq(&phba->hbalock); 5124 for (i = 0; i < psli->num_rings; i++) 5125 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 5126 dequeue_list); 5127 spin_unlock_irq(&phba->hbalock); 5128 } 5129 5130 static void 5131 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 5132 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5133 { 5134 struct lpfc_sli_ring *pring; 5135 struct lpfc_queue *qp = NULL; 5136 5137 spin_lock_irq(&phba->hbalock); 5138 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 5139 pring = qp->pring; 5140 if (!pring) 5141 continue; 5142 spin_lock(&pring->ring_lock); 5143 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 5144 spin_unlock(&pring->ring_lock); 5145 } 5146 spin_unlock_irq(&phba->hbalock); 5147 } 5148 5149 /* 5150 * Free resources / clean up outstanding I/Os 5151 * associated with nlp_rpi in the LPFC_NODELIST entry. 5152 */ 5153 static int 5154 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5155 { 5156 LIST_HEAD(completions); 5157 5158 lpfc_fabric_abort_nport(ndlp); 5159 5160 /* 5161 * Everything that matches on txcmplq will be returned 5162 * by firmware with a no rpi error. 5163 */ 5164 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5165 if (phba->sli_rev != LPFC_SLI_REV4) 5166 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 5167 else 5168 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 5169 } 5170 5171 /* Cancel all the IOCBs from the completions list */ 5172 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5173 IOERR_SLI_ABORTED); 5174 5175 return 0; 5176 } 5177 5178 /** 5179 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 5180 * @phba: Pointer to HBA context object. 5181 * @pmb: Pointer to mailbox object. 5182 * 5183 * This function will issue an ELS LOGO command after completing 5184 * the UNREG_RPI. 5185 **/ 5186 static void 5187 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5188 { 5189 struct lpfc_vport *vport = pmb->vport; 5190 struct lpfc_nodelist *ndlp; 5191 5192 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 5193 if (!ndlp) 5194 return; 5195 lpfc_issue_els_logo(vport, ndlp, 0); 5196 5197 /* Check to see if there are any deferred events to process */ 5198 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 5199 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 5200 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5201 "1434 UNREG cmpl deferred logo x%x " 5202 "on NPort x%x Data: x%x x%px\n", 5203 ndlp->nlp_rpi, ndlp->nlp_DID, 5204 ndlp->nlp_defer_did, ndlp); 5205 5206 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5207 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 5208 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 5209 } else { 5210 /* NLP_RELEASE_RPI is only set for SLI4 ports. */ 5211 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 5212 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 5213 spin_lock_irq(&ndlp->lock); 5214 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5215 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5216 spin_unlock_irq(&ndlp->lock); 5217 } 5218 spin_lock_irq(&ndlp->lock); 5219 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5220 spin_unlock_irq(&ndlp->lock); 5221 } 5222 5223 /* The node has an outstanding reference for the unreg. Now 5224 * that the LOGO action and cleanup are finished, release 5225 * resources. 5226 */ 5227 lpfc_nlp_put(ndlp); 5228 mempool_free(pmb, phba->mbox_mem_pool); 5229 } 5230 5231 /* 5232 * Sets the mailbox completion handler to be used for the 5233 * unreg_rpi command. The handler varies based on the state of 5234 * the port and what will be happening to the rpi next. 5235 */ 5236 static void 5237 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 5238 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 5239 { 5240 unsigned long iflags; 5241 5242 /* Driver always gets a reference on the mailbox job 5243 * in support of async jobs. 5244 */ 5245 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5246 if (!mbox->ctx_ndlp) 5247 return; 5248 5249 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 5250 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 5251 5252 } else if (phba->sli_rev == LPFC_SLI_REV4 && 5253 (!(vport->load_flag & FC_UNLOADING)) && 5254 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 5255 LPFC_SLI_INTF_IF_TYPE_2) && 5256 (kref_read(&ndlp->kref) > 0)) { 5257 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 5258 } else { 5259 if (vport->load_flag & FC_UNLOADING) { 5260 if (phba->sli_rev == LPFC_SLI_REV4) { 5261 spin_lock_irqsave(&ndlp->lock, iflags); 5262 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5263 spin_unlock_irqrestore(&ndlp->lock, iflags); 5264 } 5265 } 5266 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5267 } 5268 } 5269 5270 /* 5271 * Free rpi associated with LPFC_NODELIST entry. 5272 * This routine is called from lpfc_freenode(), when we are removing 5273 * a LPFC_NODELIST entry. It is also called if the driver initiates a 5274 * LOGO that completes successfully, and we are waiting to PLOGI back 5275 * to the remote NPort. In addition, it is called after we receive 5276 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 5277 * we are waiting to PLOGI back to the remote NPort. 5278 */ 5279 int 5280 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5281 { 5282 struct lpfc_hba *phba = vport->phba; 5283 LPFC_MBOXQ_t *mbox; 5284 int rc, acc_plogi = 1; 5285 uint16_t rpi; 5286 5287 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 5288 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 5289 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 5290 lpfc_printf_vlog(vport, KERN_INFO, 5291 LOG_NODE | LOG_DISCOVERY, 5292 "3366 RPI x%x needs to be " 5293 "unregistered nlp_flag x%x " 5294 "did x%x\n", 5295 ndlp->nlp_rpi, ndlp->nlp_flag, 5296 ndlp->nlp_DID); 5297 5298 /* If there is already an UNREG in progress for this ndlp, 5299 * no need to queue up another one. 5300 */ 5301 if (ndlp->nlp_flag & NLP_UNREG_INP) { 5302 lpfc_printf_vlog(vport, KERN_INFO, 5303 LOG_NODE | LOG_DISCOVERY, 5304 "1436 unreg_rpi SKIP UNREG x%x on " 5305 "NPort x%x deferred x%x flg x%x " 5306 "Data: x%px\n", 5307 ndlp->nlp_rpi, ndlp->nlp_DID, 5308 ndlp->nlp_defer_did, 5309 ndlp->nlp_flag, ndlp); 5310 goto out; 5311 } 5312 5313 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5314 if (mbox) { 5315 /* SLI4 ports require the physical rpi value. */ 5316 rpi = ndlp->nlp_rpi; 5317 if (phba->sli_rev == LPFC_SLI_REV4) 5318 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 5319 5320 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 5321 mbox->vport = vport; 5322 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 5323 if (!mbox->ctx_ndlp) { 5324 mempool_free(mbox, phba->mbox_mem_pool); 5325 return 1; 5326 } 5327 5328 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 5329 /* 5330 * accept PLOGIs after unreg_rpi_cmpl 5331 */ 5332 acc_plogi = 0; 5333 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 5334 Fabric_DID_MASK) && 5335 (!(vport->fc_flag & FC_OFFLINE_MODE))) 5336 ndlp->nlp_flag |= NLP_UNREG_INP; 5337 5338 lpfc_printf_vlog(vport, KERN_INFO, 5339 LOG_NODE | LOG_DISCOVERY, 5340 "1433 unreg_rpi UNREG x%x on " 5341 "NPort x%x deferred flg x%x " 5342 "Data:x%px\n", 5343 ndlp->nlp_rpi, ndlp->nlp_DID, 5344 ndlp->nlp_flag, ndlp); 5345 5346 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5347 if (rc == MBX_NOT_FINISHED) { 5348 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5349 mempool_free(mbox, phba->mbox_mem_pool); 5350 acc_plogi = 1; 5351 lpfc_nlp_put(ndlp); 5352 } 5353 } else { 5354 lpfc_printf_vlog(vport, KERN_INFO, 5355 LOG_NODE | LOG_DISCOVERY, 5356 "1444 Failed to allocate mempool " 5357 "unreg_rpi UNREG x%x, " 5358 "DID x%x, flag x%x, " 5359 "ndlp x%px\n", 5360 ndlp->nlp_rpi, ndlp->nlp_DID, 5361 ndlp->nlp_flag, ndlp); 5362 5363 /* Because mempool_alloc failed, we 5364 * will issue a LOGO here and keep the rpi alive if 5365 * not unloading. 5366 */ 5367 if (!(vport->load_flag & FC_UNLOADING)) { 5368 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5369 lpfc_issue_els_logo(vport, ndlp, 0); 5370 ndlp->nlp_prev_state = ndlp->nlp_state; 5371 lpfc_nlp_set_state(vport, ndlp, 5372 NLP_STE_NPR_NODE); 5373 } 5374 5375 return 1; 5376 } 5377 lpfc_no_rpi(phba, ndlp); 5378 out: 5379 if (phba->sli_rev != LPFC_SLI_REV4) 5380 ndlp->nlp_rpi = 0; 5381 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 5382 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 5383 if (acc_plogi) 5384 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5385 return 1; 5386 } 5387 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5388 return 0; 5389 } 5390 5391 /** 5392 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 5393 * @phba: pointer to lpfc hba data structure. 5394 * 5395 * This routine is invoked to unregister all the currently registered RPIs 5396 * to the HBA. 5397 **/ 5398 void 5399 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5400 { 5401 struct lpfc_vport **vports; 5402 struct lpfc_nodelist *ndlp; 5403 struct Scsi_Host *shost; 5404 int i; 5405 5406 vports = lpfc_create_vport_work_array(phba); 5407 if (!vports) { 5408 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5409 "2884 Vport array allocation failed \n"); 5410 return; 5411 } 5412 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5413 shost = lpfc_shost_from_vport(vports[i]); 5414 spin_lock_irq(shost->host_lock); 5415 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5416 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5417 /* The mempool_alloc might sleep */ 5418 spin_unlock_irq(shost->host_lock); 5419 lpfc_unreg_rpi(vports[i], ndlp); 5420 spin_lock_irq(shost->host_lock); 5421 } 5422 } 5423 spin_unlock_irq(shost->host_lock); 5424 } 5425 lpfc_destroy_vport_work_array(phba, vports); 5426 } 5427 5428 void 5429 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5430 { 5431 struct lpfc_hba *phba = vport->phba; 5432 LPFC_MBOXQ_t *mbox; 5433 int rc; 5434 5435 if (phba->sli_rev == LPFC_SLI_REV4) { 5436 lpfc_sli4_unreg_all_rpis(vport); 5437 return; 5438 } 5439 5440 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5441 if (mbox) { 5442 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5443 mbox); 5444 mbox->vport = vport; 5445 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5446 mbox->ctx_ndlp = NULL; 5447 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5448 if (rc != MBX_TIMEOUT) 5449 mempool_free(mbox, phba->mbox_mem_pool); 5450 5451 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5452 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5453 "1836 Could not issue " 5454 "unreg_login(all_rpis) status %d\n", 5455 rc); 5456 } 5457 } 5458 5459 void 5460 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5461 { 5462 struct lpfc_hba *phba = vport->phba; 5463 LPFC_MBOXQ_t *mbox; 5464 int rc; 5465 5466 /* Unreg DID is an SLI3 operation. */ 5467 if (phba->sli_rev > LPFC_SLI_REV3) 5468 return; 5469 5470 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5471 if (mbox) { 5472 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5473 mbox); 5474 mbox->vport = vport; 5475 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5476 mbox->ctx_ndlp = NULL; 5477 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5478 if (rc != MBX_TIMEOUT) 5479 mempool_free(mbox, phba->mbox_mem_pool); 5480 5481 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5482 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5483 "1815 Could not issue " 5484 "unreg_did (default rpis) status %d\n", 5485 rc); 5486 } 5487 } 5488 5489 /* 5490 * Free resources associated with LPFC_NODELIST entry 5491 * so it can be freed. 5492 */ 5493 static int 5494 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5495 { 5496 struct lpfc_hba *phba = vport->phba; 5497 LPFC_MBOXQ_t *mb, *nextmb; 5498 5499 /* Cleanup node for NPort <nlp_DID> */ 5500 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5501 "0900 Cleanup node for NPort x%x " 5502 "Data: x%x x%x x%x\n", 5503 ndlp->nlp_DID, ndlp->nlp_flag, 5504 ndlp->nlp_state, ndlp->nlp_rpi); 5505 lpfc_dequeue_node(vport, ndlp); 5506 5507 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5508 5509 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5510 if ((mb = phba->sli.mbox_active)) { 5511 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5512 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5513 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5514 mb->ctx_ndlp = NULL; 5515 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5516 } 5517 } 5518 5519 spin_lock_irq(&phba->hbalock); 5520 /* Cleanup REG_LOGIN completions which are not yet processed */ 5521 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5522 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5523 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5524 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5525 continue; 5526 5527 mb->ctx_ndlp = NULL; 5528 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5529 } 5530 5531 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5532 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5533 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5534 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5535 list_del(&mb->list); 5536 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 5537 5538 /* Don't invoke lpfc_nlp_put. The driver is in 5539 * lpfc_nlp_release context. 5540 */ 5541 } 5542 } 5543 spin_unlock_irq(&phba->hbalock); 5544 5545 lpfc_els_abort(phba, ndlp); 5546 5547 spin_lock_irq(&ndlp->lock); 5548 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5549 spin_unlock_irq(&ndlp->lock); 5550 5551 ndlp->nlp_last_elscmd = 0; 5552 del_timer_sync(&ndlp->nlp_delayfunc); 5553 5554 list_del_init(&ndlp->els_retry_evt.evt_listp); 5555 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5556 list_del_init(&ndlp->recovery_evt.evt_listp); 5557 lpfc_cleanup_vports_rrqs(vport, ndlp); 5558 5559 if (phba->sli_rev == LPFC_SLI_REV4) 5560 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5561 5562 return 0; 5563 } 5564 5565 static int 5566 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5567 uint32_t did) 5568 { 5569 D_ID mydid, ndlpdid, matchdid; 5570 5571 if (did == Bcast_DID) 5572 return 0; 5573 5574 /* First check for Direct match */ 5575 if (ndlp->nlp_DID == did) 5576 return 1; 5577 5578 /* Next check for area/domain identically equals 0 match */ 5579 mydid.un.word = vport->fc_myDID; 5580 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5581 return 0; 5582 } 5583 5584 matchdid.un.word = did; 5585 ndlpdid.un.word = ndlp->nlp_DID; 5586 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5587 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5588 (mydid.un.b.area == matchdid.un.b.area)) { 5589 /* This code is supposed to match the ID 5590 * for a private loop device that is 5591 * connect to fl_port. But we need to 5592 * check that the port did not just go 5593 * from pt2pt to fabric or we could end 5594 * up matching ndlp->nlp_DID 000001 to 5595 * fabric DID 0x20101 5596 */ 5597 if ((ndlpdid.un.b.domain == 0) && 5598 (ndlpdid.un.b.area == 0)) { 5599 if (ndlpdid.un.b.id && 5600 vport->phba->fc_topology == 5601 LPFC_TOPOLOGY_LOOP) 5602 return 1; 5603 } 5604 return 0; 5605 } 5606 5607 matchdid.un.word = ndlp->nlp_DID; 5608 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5609 (mydid.un.b.area == ndlpdid.un.b.area)) { 5610 if ((matchdid.un.b.domain == 0) && 5611 (matchdid.un.b.area == 0)) { 5612 if (matchdid.un.b.id) 5613 return 1; 5614 } 5615 } 5616 } 5617 return 0; 5618 } 5619 5620 /* Search for a nodelist entry */ 5621 static struct lpfc_nodelist * 5622 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5623 { 5624 struct lpfc_nodelist *ndlp; 5625 uint32_t data1; 5626 5627 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5628 if (lpfc_matchdid(vport, ndlp, did)) { 5629 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5630 ((uint32_t)ndlp->nlp_xri << 16) | 5631 ((uint32_t)ndlp->nlp_type << 8) 5632 ); 5633 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5634 "0929 FIND node DID " 5635 "Data: x%px x%x x%x x%x x%x x%px\n", 5636 ndlp, ndlp->nlp_DID, 5637 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5638 ndlp->active_rrqs_xri_bitmap); 5639 return ndlp; 5640 } 5641 } 5642 5643 /* FIND node did <did> NOT FOUND */ 5644 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5645 "0932 FIND node did x%x NOT FOUND.\n", did); 5646 return NULL; 5647 } 5648 5649 struct lpfc_nodelist * 5650 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5651 { 5652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5653 struct lpfc_nodelist *ndlp; 5654 unsigned long iflags; 5655 5656 spin_lock_irqsave(shost->host_lock, iflags); 5657 ndlp = __lpfc_findnode_did(vport, did); 5658 spin_unlock_irqrestore(shost->host_lock, iflags); 5659 return ndlp; 5660 } 5661 5662 struct lpfc_nodelist * 5663 lpfc_findnode_mapped(struct lpfc_vport *vport) 5664 { 5665 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5666 struct lpfc_nodelist *ndlp; 5667 uint32_t data1; 5668 unsigned long iflags; 5669 5670 spin_lock_irqsave(shost->host_lock, iflags); 5671 5672 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5673 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5674 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5675 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5676 ((uint32_t)ndlp->nlp_xri << 16) | 5677 ((uint32_t)ndlp->nlp_type << 8) | 5678 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5679 spin_unlock_irqrestore(shost->host_lock, iflags); 5680 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5681 "2025 FIND node DID " 5682 "Data: x%px x%x x%x x%x x%px\n", 5683 ndlp, ndlp->nlp_DID, 5684 ndlp->nlp_flag, data1, 5685 ndlp->active_rrqs_xri_bitmap); 5686 return ndlp; 5687 } 5688 } 5689 spin_unlock_irqrestore(shost->host_lock, iflags); 5690 5691 /* FIND node did <did> NOT FOUND */ 5692 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5693 "2026 FIND mapped did NOT FOUND.\n"); 5694 return NULL; 5695 } 5696 5697 struct lpfc_nodelist * 5698 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5699 { 5700 struct lpfc_nodelist *ndlp; 5701 5702 ndlp = lpfc_findnode_did(vport, did); 5703 if (!ndlp) { 5704 if (vport->phba->nvmet_support) 5705 return NULL; 5706 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5707 lpfc_rscn_payload_check(vport, did) == 0) 5708 return NULL; 5709 ndlp = lpfc_nlp_init(vport, did); 5710 if (!ndlp) 5711 return NULL; 5712 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5713 5714 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5715 "6453 Setup New Node 2B_DISC x%x " 5716 "Data:x%x x%x x%x\n", 5717 ndlp->nlp_DID, ndlp->nlp_flag, 5718 ndlp->nlp_state, vport->fc_flag); 5719 5720 spin_lock_irq(&ndlp->lock); 5721 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5722 spin_unlock_irq(&ndlp->lock); 5723 return ndlp; 5724 } 5725 5726 /* The NVME Target does not want to actively manage an rport. 5727 * The goal is to allow the target to reset its state and clear 5728 * pending IO in preparation for the initiator to recover. 5729 */ 5730 if ((vport->fc_flag & FC_RSCN_MODE) && 5731 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5732 if (lpfc_rscn_payload_check(vport, did)) { 5733 5734 /* Since this node is marked for discovery, 5735 * delay timeout is not needed. 5736 */ 5737 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5738 5739 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5740 "6455 Setup RSCN Node 2B_DISC x%x " 5741 "Data:x%x x%x x%x\n", 5742 ndlp->nlp_DID, ndlp->nlp_flag, 5743 ndlp->nlp_state, vport->fc_flag); 5744 5745 /* NVME Target mode waits until rport is known to be 5746 * impacted by the RSCN before it transitions. No 5747 * active management - just go to NPR provided the 5748 * node had a valid login. 5749 */ 5750 if (vport->phba->nvmet_support) 5751 return ndlp; 5752 5753 /* If we've already received a PLOGI from this NPort 5754 * we don't need to try to discover it again. 5755 */ 5756 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5757 !(ndlp->nlp_type & 5758 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5759 return NULL; 5760 5761 ndlp->nlp_prev_state = ndlp->nlp_state; 5762 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5763 5764 spin_lock_irq(&ndlp->lock); 5765 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5766 spin_unlock_irq(&ndlp->lock); 5767 } else { 5768 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5769 "6456 Skip Setup RSCN Node x%x " 5770 "Data:x%x x%x x%x\n", 5771 ndlp->nlp_DID, ndlp->nlp_flag, 5772 ndlp->nlp_state, vport->fc_flag); 5773 ndlp = NULL; 5774 } 5775 } else { 5776 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5777 "6457 Setup Active Node 2B_DISC x%x " 5778 "Data:x%x x%x x%x\n", 5779 ndlp->nlp_DID, ndlp->nlp_flag, 5780 ndlp->nlp_state, vport->fc_flag); 5781 5782 /* If the initiator received a PLOGI from this NPort or if the 5783 * initiator is already in the process of discovery on it, 5784 * there's no need to try to discover it again. 5785 */ 5786 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5787 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5788 (!vport->phba->nvmet_support && 5789 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5790 return NULL; 5791 5792 if (vport->phba->nvmet_support) 5793 return ndlp; 5794 5795 /* Moving to NPR state clears unsolicited flags and 5796 * allows for rediscovery 5797 */ 5798 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5799 5800 spin_lock_irq(&ndlp->lock); 5801 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5802 spin_unlock_irq(&ndlp->lock); 5803 } 5804 return ndlp; 5805 } 5806 5807 /* Build a list of nodes to discover based on the loopmap */ 5808 void 5809 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5810 { 5811 struct lpfc_hba *phba = vport->phba; 5812 int j; 5813 uint32_t alpa, index; 5814 5815 if (!lpfc_is_link_up(phba)) 5816 return; 5817 5818 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5819 return; 5820 5821 /* Check for loop map present or not */ 5822 if (phba->alpa_map[0]) { 5823 for (j = 1; j <= phba->alpa_map[0]; j++) { 5824 alpa = phba->alpa_map[j]; 5825 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5826 continue; 5827 lpfc_setup_disc_node(vport, alpa); 5828 } 5829 } else { 5830 /* No alpamap, so try all alpa's */ 5831 for (j = 0; j < FC_MAXLOOP; j++) { 5832 /* If cfg_scan_down is set, start from highest 5833 * ALPA (0xef) to lowest (0x1). 5834 */ 5835 if (vport->cfg_scan_down) 5836 index = j; 5837 else 5838 index = FC_MAXLOOP - j - 1; 5839 alpa = lpfcAlpaArray[index]; 5840 if ((vport->fc_myDID & 0xff) == alpa) 5841 continue; 5842 lpfc_setup_disc_node(vport, alpa); 5843 } 5844 } 5845 return; 5846 } 5847 5848 /* SLI3 only */ 5849 void 5850 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5851 { 5852 LPFC_MBOXQ_t *mbox; 5853 struct lpfc_sli *psli = &phba->sli; 5854 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5855 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5856 int rc; 5857 5858 /* 5859 * if it's not a physical port or if we already send 5860 * clear_la then don't send it. 5861 */ 5862 if ((phba->link_state >= LPFC_CLEAR_LA) || 5863 (vport->port_type != LPFC_PHYSICAL_PORT) || 5864 (phba->sli_rev == LPFC_SLI_REV4)) 5865 return; 5866 5867 /* Link up discovery */ 5868 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5869 phba->link_state = LPFC_CLEAR_LA; 5870 lpfc_clear_la(phba, mbox); 5871 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5872 mbox->vport = vport; 5873 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5874 if (rc == MBX_NOT_FINISHED) { 5875 mempool_free(mbox, phba->mbox_mem_pool); 5876 lpfc_disc_flush_list(vport); 5877 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5878 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5879 phba->link_state = LPFC_HBA_ERROR; 5880 } 5881 } 5882 } 5883 5884 /* Reg_vpi to tell firmware to resume normal operations */ 5885 void 5886 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5887 { 5888 LPFC_MBOXQ_t *regvpimbox; 5889 5890 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5891 if (regvpimbox) { 5892 lpfc_reg_vpi(vport, regvpimbox); 5893 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5894 regvpimbox->vport = vport; 5895 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5896 == MBX_NOT_FINISHED) { 5897 mempool_free(regvpimbox, phba->mbox_mem_pool); 5898 } 5899 } 5900 } 5901 5902 /* Start Link up / RSCN discovery on NPR nodes */ 5903 void 5904 lpfc_disc_start(struct lpfc_vport *vport) 5905 { 5906 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5907 struct lpfc_hba *phba = vport->phba; 5908 uint32_t num_sent; 5909 uint32_t clear_la_pending; 5910 5911 if (!lpfc_is_link_up(phba)) { 5912 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5913 "3315 Link is not up %x\n", 5914 phba->link_state); 5915 return; 5916 } 5917 5918 if (phba->link_state == LPFC_CLEAR_LA) 5919 clear_la_pending = 1; 5920 else 5921 clear_la_pending = 0; 5922 5923 if (vport->port_state < LPFC_VPORT_READY) 5924 vport->port_state = LPFC_DISC_AUTH; 5925 5926 lpfc_set_disctmo(vport); 5927 5928 vport->fc_prevDID = vport->fc_myDID; 5929 vport->num_disc_nodes = 0; 5930 5931 /* Start Discovery state <hba_state> */ 5932 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5933 "0202 Start Discovery port state x%x " 5934 "flg x%x Data: x%x x%x x%x\n", 5935 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5936 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5937 5938 /* First do ADISCs - if any */ 5939 num_sent = lpfc_els_disc_adisc(vport); 5940 5941 if (num_sent) 5942 return; 5943 5944 /* Register the VPI for SLI3, NPIV only. */ 5945 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5946 !(vport->fc_flag & FC_PT2PT) && 5947 !(vport->fc_flag & FC_RSCN_MODE) && 5948 (phba->sli_rev < LPFC_SLI_REV4)) { 5949 lpfc_issue_clear_la(phba, vport); 5950 lpfc_issue_reg_vpi(phba, vport); 5951 return; 5952 } 5953 5954 /* 5955 * For SLI2, we need to set port_state to READY and continue 5956 * discovery. 5957 */ 5958 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5959 /* If we get here, there is nothing to ADISC */ 5960 lpfc_issue_clear_la(phba, vport); 5961 5962 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5963 vport->num_disc_nodes = 0; 5964 /* go thru NPR nodes and issue ELS PLOGIs */ 5965 if (vport->fc_npr_cnt) 5966 lpfc_els_disc_plogi(vport); 5967 5968 if (!vport->num_disc_nodes) { 5969 spin_lock_irq(shost->host_lock); 5970 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5971 spin_unlock_irq(shost->host_lock); 5972 lpfc_can_disctmo(vport); 5973 } 5974 } 5975 vport->port_state = LPFC_VPORT_READY; 5976 } else { 5977 /* Next do PLOGIs - if any */ 5978 num_sent = lpfc_els_disc_plogi(vport); 5979 5980 if (num_sent) 5981 return; 5982 5983 if (vport->fc_flag & FC_RSCN_MODE) { 5984 /* Check to see if more RSCNs came in while we 5985 * were processing this one. 5986 */ 5987 if ((vport->fc_rscn_id_cnt == 0) && 5988 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5989 spin_lock_irq(shost->host_lock); 5990 vport->fc_flag &= ~FC_RSCN_MODE; 5991 spin_unlock_irq(shost->host_lock); 5992 lpfc_can_disctmo(vport); 5993 } else 5994 lpfc_els_handle_rscn(vport); 5995 } 5996 } 5997 return; 5998 } 5999 6000 /* 6001 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 6002 * ring the match the sppecified nodelist. 6003 */ 6004 static void 6005 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 6006 { 6007 LIST_HEAD(completions); 6008 struct lpfc_iocbq *iocb, *next_iocb; 6009 struct lpfc_sli_ring *pring; 6010 u32 ulp_command; 6011 6012 pring = lpfc_phba_elsring(phba); 6013 if (unlikely(!pring)) 6014 return; 6015 6016 /* Error matching iocb on txq or txcmplq 6017 * First check the txq. 6018 */ 6019 spin_lock_irq(&phba->hbalock); 6020 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 6021 if (iocb->ndlp != ndlp) 6022 continue; 6023 6024 ulp_command = get_job_cmnd(phba, iocb); 6025 6026 if (ulp_command == CMD_ELS_REQUEST64_CR || 6027 ulp_command == CMD_XMIT_ELS_RSP64_CX) { 6028 6029 list_move_tail(&iocb->list, &completions); 6030 } 6031 } 6032 6033 /* Next check the txcmplq */ 6034 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 6035 if (iocb->ndlp != ndlp) 6036 continue; 6037 6038 ulp_command = get_job_cmnd(phba, iocb); 6039 6040 if (ulp_command == CMD_ELS_REQUEST64_CR || 6041 ulp_command == CMD_XMIT_ELS_RSP64_CX) { 6042 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 6043 } 6044 } 6045 spin_unlock_irq(&phba->hbalock); 6046 6047 /* Make sure HBA is alive */ 6048 lpfc_issue_hb_tmo(phba); 6049 6050 /* Cancel all the IOCBs from the completions list */ 6051 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 6052 IOERR_SLI_ABORTED); 6053 } 6054 6055 static void 6056 lpfc_disc_flush_list(struct lpfc_vport *vport) 6057 { 6058 struct lpfc_nodelist *ndlp, *next_ndlp; 6059 struct lpfc_hba *phba = vport->phba; 6060 6061 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 6062 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6063 nlp_listp) { 6064 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 6065 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 6066 lpfc_free_tx(phba, ndlp); 6067 } 6068 } 6069 } 6070 } 6071 6072 /* 6073 * lpfc_notify_xport_npr - notifies xport of node disappearance 6074 * @vport: Pointer to Virtual Port object. 6075 * 6076 * Transitions all ndlps to NPR state. When lpfc_nlp_set_state 6077 * calls lpfc_nlp_state_cleanup, the ndlp->rport is unregistered 6078 * and transport notified that the node is gone. 6079 * Return Code: 6080 * none 6081 */ 6082 static void 6083 lpfc_notify_xport_npr(struct lpfc_vport *vport) 6084 { 6085 struct lpfc_nodelist *ndlp, *next_ndlp; 6086 6087 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6088 nlp_listp) { 6089 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 6090 } 6091 } 6092 void 6093 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 6094 { 6095 lpfc_els_flush_rscn(vport); 6096 lpfc_els_flush_cmd(vport); 6097 lpfc_disc_flush_list(vport); 6098 if (pci_channel_offline(vport->phba->pcidev)) 6099 lpfc_notify_xport_npr(vport); 6100 } 6101 6102 /*****************************************************************************/ 6103 /* 6104 * NAME: lpfc_disc_timeout 6105 * 6106 * FUNCTION: Fibre Channel driver discovery timeout routine. 6107 * 6108 * EXECUTION ENVIRONMENT: interrupt only 6109 * 6110 * CALLED FROM: 6111 * Timer function 6112 * 6113 * RETURNS: 6114 * none 6115 */ 6116 /*****************************************************************************/ 6117 void 6118 lpfc_disc_timeout(struct timer_list *t) 6119 { 6120 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 6121 struct lpfc_hba *phba = vport->phba; 6122 uint32_t tmo_posted; 6123 unsigned long flags = 0; 6124 6125 if (unlikely(!phba)) 6126 return; 6127 6128 spin_lock_irqsave(&vport->work_port_lock, flags); 6129 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 6130 if (!tmo_posted) 6131 vport->work_port_events |= WORKER_DISC_TMO; 6132 spin_unlock_irqrestore(&vport->work_port_lock, flags); 6133 6134 if (!tmo_posted) 6135 lpfc_worker_wake_up(phba); 6136 return; 6137 } 6138 6139 static void 6140 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 6141 { 6142 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6143 struct lpfc_hba *phba = vport->phba; 6144 struct lpfc_sli *psli = &phba->sli; 6145 struct lpfc_nodelist *ndlp, *next_ndlp; 6146 LPFC_MBOXQ_t *initlinkmbox; 6147 int rc, clrlaerr = 0; 6148 6149 if (!(vport->fc_flag & FC_DISC_TMO)) 6150 return; 6151 6152 spin_lock_irq(shost->host_lock); 6153 vport->fc_flag &= ~FC_DISC_TMO; 6154 spin_unlock_irq(shost->host_lock); 6155 6156 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 6157 "disc timeout: state:x%x rtry:x%x flg:x%x", 6158 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 6159 6160 switch (vport->port_state) { 6161 6162 case LPFC_LOCAL_CFG_LINK: 6163 /* 6164 * port_state is identically LPFC_LOCAL_CFG_LINK while 6165 * waiting for FAN timeout 6166 */ 6167 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 6168 "0221 FAN timeout\n"); 6169 6170 /* Start discovery by sending FLOGI, clean up old rpis */ 6171 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6172 nlp_listp) { 6173 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 6174 continue; 6175 if (ndlp->nlp_type & NLP_FABRIC) { 6176 /* Clean up the ndlp on Fabric connections */ 6177 lpfc_drop_node(vport, ndlp); 6178 6179 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 6180 /* Fail outstanding IO now since device 6181 * is marked for PLOGI. 6182 */ 6183 lpfc_unreg_rpi(vport, ndlp); 6184 } 6185 } 6186 if (vport->port_state != LPFC_FLOGI) { 6187 if (phba->sli_rev <= LPFC_SLI_REV3) 6188 lpfc_initial_flogi(vport); 6189 else 6190 lpfc_issue_init_vfi(vport); 6191 return; 6192 } 6193 break; 6194 6195 case LPFC_FDISC: 6196 case LPFC_FLOGI: 6197 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 6198 /* Initial FLOGI timeout */ 6199 lpfc_printf_vlog(vport, KERN_ERR, 6200 LOG_TRACE_EVENT, 6201 "0222 Initial %s timeout\n", 6202 vport->vpi ? "FDISC" : "FLOGI"); 6203 6204 /* Assume no Fabric and go on with discovery. 6205 * Check for outstanding ELS FLOGI to abort. 6206 */ 6207 6208 /* FLOGI failed, so just use loop map to make discovery list */ 6209 lpfc_disc_list_loopmap(vport); 6210 6211 /* Start discovery */ 6212 lpfc_disc_start(vport); 6213 break; 6214 6215 case LPFC_FABRIC_CFG_LINK: 6216 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 6217 NameServer login */ 6218 lpfc_printf_vlog(vport, KERN_ERR, 6219 LOG_TRACE_EVENT, 6220 "0223 Timeout while waiting for " 6221 "NameServer login\n"); 6222 /* Next look for NameServer ndlp */ 6223 ndlp = lpfc_findnode_did(vport, NameServer_DID); 6224 if (ndlp) 6225 lpfc_els_abort(phba, ndlp); 6226 6227 /* ReStart discovery */ 6228 goto restart_disc; 6229 6230 case LPFC_NS_QRY: 6231 /* Check for wait for NameServer Rsp timeout */ 6232 lpfc_printf_vlog(vport, KERN_ERR, 6233 LOG_TRACE_EVENT, 6234 "0224 NameServer Query timeout " 6235 "Data: x%x x%x\n", 6236 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6237 6238 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 6239 /* Try it one more time */ 6240 vport->fc_ns_retry++; 6241 vport->gidft_inp = 0; 6242 rc = lpfc_issue_gidft(vport); 6243 if (rc == 0) 6244 break; 6245 } 6246 vport->fc_ns_retry = 0; 6247 6248 restart_disc: 6249 /* 6250 * Discovery is over. 6251 * set port_state to PORT_READY if SLI2. 6252 * cmpl_reg_vpi will set port_state to READY for SLI3. 6253 */ 6254 if (phba->sli_rev < LPFC_SLI_REV4) { 6255 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6256 lpfc_issue_reg_vpi(phba, vport); 6257 else { 6258 lpfc_issue_clear_la(phba, vport); 6259 vport->port_state = LPFC_VPORT_READY; 6260 } 6261 } 6262 6263 /* Setup and issue mailbox INITIALIZE LINK command */ 6264 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6265 if (!initlinkmbox) { 6266 lpfc_printf_vlog(vport, KERN_ERR, 6267 LOG_TRACE_EVENT, 6268 "0206 Device Discovery " 6269 "completion error\n"); 6270 phba->link_state = LPFC_HBA_ERROR; 6271 break; 6272 } 6273 6274 lpfc_linkdown(phba); 6275 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 6276 phba->cfg_link_speed); 6277 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 6278 initlinkmbox->vport = vport; 6279 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 6280 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 6281 lpfc_set_loopback_flag(phba); 6282 if (rc == MBX_NOT_FINISHED) 6283 mempool_free(initlinkmbox, phba->mbox_mem_pool); 6284 6285 break; 6286 6287 case LPFC_DISC_AUTH: 6288 /* Node Authentication timeout */ 6289 lpfc_printf_vlog(vport, KERN_ERR, 6290 LOG_TRACE_EVENT, 6291 "0227 Node Authentication timeout\n"); 6292 lpfc_disc_flush_list(vport); 6293 6294 /* 6295 * set port_state to PORT_READY if SLI2. 6296 * cmpl_reg_vpi will set port_state to READY for SLI3. 6297 */ 6298 if (phba->sli_rev < LPFC_SLI_REV4) { 6299 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6300 lpfc_issue_reg_vpi(phba, vport); 6301 else { /* NPIV Not enabled */ 6302 lpfc_issue_clear_la(phba, vport); 6303 vport->port_state = LPFC_VPORT_READY; 6304 } 6305 } 6306 break; 6307 6308 case LPFC_VPORT_READY: 6309 if (vport->fc_flag & FC_RSCN_MODE) { 6310 lpfc_printf_vlog(vport, KERN_ERR, 6311 LOG_TRACE_EVENT, 6312 "0231 RSCN timeout Data: x%x " 6313 "x%x x%x x%x\n", 6314 vport->fc_ns_retry, LPFC_MAX_NS_RETRY, 6315 vport->port_state, vport->gidft_inp); 6316 6317 /* Cleanup any outstanding ELS commands */ 6318 lpfc_els_flush_cmd(vport); 6319 6320 lpfc_els_flush_rscn(vport); 6321 lpfc_disc_flush_list(vport); 6322 } 6323 break; 6324 6325 default: 6326 lpfc_printf_vlog(vport, KERN_ERR, 6327 LOG_TRACE_EVENT, 6328 "0273 Unexpected discovery timeout, " 6329 "vport State x%x\n", vport->port_state); 6330 break; 6331 } 6332 6333 switch (phba->link_state) { 6334 case LPFC_CLEAR_LA: 6335 /* CLEAR LA timeout */ 6336 lpfc_printf_vlog(vport, KERN_ERR, 6337 LOG_TRACE_EVENT, 6338 "0228 CLEAR LA timeout\n"); 6339 clrlaerr = 1; 6340 break; 6341 6342 case LPFC_LINK_UP: 6343 lpfc_issue_clear_la(phba, vport); 6344 fallthrough; 6345 case LPFC_LINK_UNKNOWN: 6346 case LPFC_WARM_START: 6347 case LPFC_INIT_START: 6348 case LPFC_INIT_MBX_CMDS: 6349 case LPFC_LINK_DOWN: 6350 case LPFC_HBA_ERROR: 6351 lpfc_printf_vlog(vport, KERN_ERR, 6352 LOG_TRACE_EVENT, 6353 "0230 Unexpected timeout, hba link " 6354 "state x%x\n", phba->link_state); 6355 clrlaerr = 1; 6356 break; 6357 6358 case LPFC_HBA_READY: 6359 break; 6360 } 6361 6362 if (clrlaerr) { 6363 lpfc_disc_flush_list(vport); 6364 if (phba->sli_rev != LPFC_SLI_REV4) { 6365 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6366 ~LPFC_STOP_IOCB_EVENT; 6367 psli->sli3_ring[LPFC_FCP_RING].flag &= 6368 ~LPFC_STOP_IOCB_EVENT; 6369 } 6370 vport->port_state = LPFC_VPORT_READY; 6371 } 6372 return; 6373 } 6374 6375 /* 6376 * This routine handles processing a NameServer REG_LOGIN mailbox 6377 * command upon completion. It is setup in the LPFC_MBOXQ 6378 * as the completion routine when the command is 6379 * handed off to the SLI layer. 6380 */ 6381 void 6382 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6383 { 6384 MAILBOX_t *mb = &pmb->u.mb; 6385 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6386 struct lpfc_vport *vport = pmb->vport; 6387 6388 pmb->ctx_ndlp = NULL; 6389 6390 if (phba->sli_rev < LPFC_SLI_REV4) 6391 ndlp->nlp_rpi = mb->un.varWords[0]; 6392 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6393 ndlp->nlp_type |= NLP_FABRIC; 6394 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6395 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6396 "0004 rpi:%x DID:%x flg:%x %d x%px\n", 6397 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6398 kref_read(&ndlp->kref), 6399 ndlp); 6400 /* 6401 * Start issuing Fabric-Device Management Interface (FDMI) command to 6402 * 0xfffffa (FDMI well known port). 6403 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6404 * DPRT -> RPRT (vports) 6405 */ 6406 if (vport->port_type == LPFC_PHYSICAL_PORT) { 6407 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */ 6408 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6409 } else { 6410 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6411 } 6412 6413 6414 /* decrement the node reference count held for this callback 6415 * function. 6416 */ 6417 lpfc_nlp_put(ndlp); 6418 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 6419 return; 6420 } 6421 6422 static int 6423 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6424 { 6425 uint16_t *rpi = param; 6426 6427 return ndlp->nlp_rpi == *rpi; 6428 } 6429 6430 static int 6431 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6432 { 6433 return memcmp(&ndlp->nlp_portname, param, 6434 sizeof(ndlp->nlp_portname)) == 0; 6435 } 6436 6437 static struct lpfc_nodelist * 6438 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6439 { 6440 struct lpfc_nodelist *ndlp; 6441 6442 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6443 if (filter(ndlp, param)) { 6444 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6445 "3185 FIND node filter %ps DID " 6446 "ndlp x%px did x%x flg x%x st x%x " 6447 "xri x%x type x%x rpi x%x\n", 6448 filter, ndlp, ndlp->nlp_DID, 6449 ndlp->nlp_flag, ndlp->nlp_state, 6450 ndlp->nlp_xri, ndlp->nlp_type, 6451 ndlp->nlp_rpi); 6452 return ndlp; 6453 } 6454 } 6455 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6456 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6457 return NULL; 6458 } 6459 6460 /* 6461 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6462 * returns the node list element pointer else return NULL. 6463 */ 6464 struct lpfc_nodelist * 6465 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6466 { 6467 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6468 } 6469 6470 /* 6471 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6472 * returns the node element list pointer else return NULL. 6473 */ 6474 struct lpfc_nodelist * 6475 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6476 { 6477 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6478 struct lpfc_nodelist *ndlp; 6479 6480 spin_lock_irq(shost->host_lock); 6481 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6482 spin_unlock_irq(shost->host_lock); 6483 return ndlp; 6484 } 6485 6486 /* 6487 * This routine looks up the ndlp lists for the given RPI. If the rpi 6488 * is found, the routine returns the node element list pointer else 6489 * return NULL. 6490 */ 6491 struct lpfc_nodelist * 6492 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6493 { 6494 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6495 struct lpfc_nodelist *ndlp; 6496 unsigned long flags; 6497 6498 spin_lock_irqsave(shost->host_lock, flags); 6499 ndlp = __lpfc_findnode_rpi(vport, rpi); 6500 spin_unlock_irqrestore(shost->host_lock, flags); 6501 return ndlp; 6502 } 6503 6504 /** 6505 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6506 * @phba: pointer to lpfc hba data structure. 6507 * @vpi: the physical host virtual N_Port identifier. 6508 * 6509 * This routine finds a vport on a HBA (referred by @phba) through a 6510 * @vpi. The function walks the HBA's vport list and returns the address 6511 * of the vport with the matching @vpi. 6512 * 6513 * Return code 6514 * NULL - No vport with the matching @vpi found 6515 * Otherwise - Address to the vport with the matching @vpi. 6516 **/ 6517 struct lpfc_vport * 6518 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6519 { 6520 struct lpfc_vport *vport; 6521 unsigned long flags; 6522 int i = 0; 6523 6524 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6525 if (vpi > 0) { 6526 /* 6527 * Translate the physical vpi to the logical vpi. The 6528 * vport stores the logical vpi. 6529 */ 6530 for (i = 0; i <= phba->max_vpi; i++) { 6531 if (vpi == phba->vpi_ids[i]) 6532 break; 6533 } 6534 6535 if (i > phba->max_vpi) { 6536 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6537 "2936 Could not find Vport mapped " 6538 "to vpi %d\n", vpi); 6539 return NULL; 6540 } 6541 } 6542 6543 spin_lock_irqsave(&phba->port_list_lock, flags); 6544 list_for_each_entry(vport, &phba->port_list, listentry) { 6545 if (vport->vpi == i) { 6546 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6547 return vport; 6548 } 6549 } 6550 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6551 return NULL; 6552 } 6553 6554 struct lpfc_nodelist * 6555 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6556 { 6557 struct lpfc_nodelist *ndlp; 6558 int rpi = LPFC_RPI_ALLOC_ERROR; 6559 6560 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6561 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6562 if (rpi == LPFC_RPI_ALLOC_ERROR) 6563 return NULL; 6564 } 6565 6566 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6567 if (!ndlp) { 6568 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6569 lpfc_sli4_free_rpi(vport->phba, rpi); 6570 return NULL; 6571 } 6572 6573 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6574 6575 spin_lock_init(&ndlp->lock); 6576 6577 lpfc_initialize_node(vport, ndlp, did); 6578 INIT_LIST_HEAD(&ndlp->nlp_listp); 6579 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6580 ndlp->nlp_rpi = rpi; 6581 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6582 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6583 "flg:x%x refcnt:%d\n", 6584 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6585 ndlp->nlp_flag, kref_read(&ndlp->kref)); 6586 6587 ndlp->active_rrqs_xri_bitmap = 6588 mempool_alloc(vport->phba->active_rrq_pool, 6589 GFP_KERNEL); 6590 if (ndlp->active_rrqs_xri_bitmap) 6591 memset(ndlp->active_rrqs_xri_bitmap, 0, 6592 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6593 } 6594 6595 6596 6597 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6598 "node init: did:x%x", 6599 ndlp->nlp_DID, 0, 0); 6600 6601 return ndlp; 6602 } 6603 6604 /* This routine releases all resources associated with a specifc NPort's ndlp 6605 * and mempool_free's the nodelist. 6606 */ 6607 static void 6608 lpfc_nlp_release(struct kref *kref) 6609 { 6610 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6611 kref); 6612 struct lpfc_vport *vport = ndlp->vport; 6613 6614 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6615 "node release: did:x%x flg:x%x type:x%x", 6616 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6617 6618 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6619 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n", 6620 __func__, ndlp, ndlp->nlp_DID, 6621 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6622 6623 /* remove ndlp from action. */ 6624 lpfc_cancel_retry_delay_tmo(vport, ndlp); 6625 lpfc_cleanup_node(vport, ndlp); 6626 6627 /* Not all ELS transactions have registered the RPI with the port. 6628 * In these cases the rpi usage is temporary and the node is 6629 * released when the WQE is completed. Catch this case to free the 6630 * RPI to the pool. Because this node is in the release path, a lock 6631 * is unnecessary. All references are gone and the node has been 6632 * dequeued. 6633 */ 6634 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 6635 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR && 6636 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) { 6637 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 6638 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 6639 } 6640 } 6641 6642 /* The node is not freed back to memory, it is released to a pool so 6643 * the node fields need to be cleaned up. 6644 */ 6645 ndlp->vport = NULL; 6646 ndlp->nlp_state = NLP_STE_FREED_NODE; 6647 ndlp->nlp_flag = 0; 6648 ndlp->fc4_xpt_flags = 0; 6649 6650 /* free ndlp memory for final ndlp release */ 6651 kfree(ndlp->lat_data); 6652 if (ndlp->phba->sli_rev == LPFC_SLI_REV4) 6653 mempool_free(ndlp->active_rrqs_xri_bitmap, 6654 ndlp->phba->active_rrq_pool); 6655 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6656 } 6657 6658 /* This routine bumps the reference count for a ndlp structure to ensure 6659 * that one discovery thread won't free a ndlp while another discovery thread 6660 * is using it. 6661 */ 6662 struct lpfc_nodelist * 6663 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6664 { 6665 unsigned long flags; 6666 6667 if (ndlp) { 6668 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6669 "node get: did:x%x flg:x%x refcnt:x%x", 6670 ndlp->nlp_DID, ndlp->nlp_flag, 6671 kref_read(&ndlp->kref)); 6672 6673 /* The check of ndlp usage to prevent incrementing the 6674 * ndlp reference count that is in the process of being 6675 * released. 6676 */ 6677 spin_lock_irqsave(&ndlp->lock, flags); 6678 if (!kref_get_unless_zero(&ndlp->kref)) { 6679 spin_unlock_irqrestore(&ndlp->lock, flags); 6680 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6681 "0276 %s: ndlp:x%px refcnt:%d\n", 6682 __func__, (void *)ndlp, kref_read(&ndlp->kref)); 6683 return NULL; 6684 } 6685 spin_unlock_irqrestore(&ndlp->lock, flags); 6686 } else { 6687 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__); 6688 } 6689 6690 return ndlp; 6691 } 6692 6693 /* This routine decrements the reference count for a ndlp structure. If the 6694 * count goes to 0, this indicates the associated nodelist should be freed. 6695 */ 6696 int 6697 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6698 { 6699 if (ndlp) { 6700 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6701 "node put: did:x%x flg:x%x refcnt:x%x", 6702 ndlp->nlp_DID, ndlp->nlp_flag, 6703 kref_read(&ndlp->kref)); 6704 } else { 6705 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__); 6706 } 6707 6708 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0; 6709 } 6710 6711 /* This routine free's the specified nodelist if it is not in use 6712 * by any other discovery thread. This routine returns 1 if the 6713 * ndlp has been freed. A return value of 0 indicates the ndlp is 6714 * not yet been released. 6715 */ 6716 int 6717 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6718 { 6719 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6720 "node not used: did:x%x flg:x%x refcnt:x%x", 6721 ndlp->nlp_DID, ndlp->nlp_flag, 6722 kref_read(&ndlp->kref)); 6723 6724 if (kref_read(&ndlp->kref) == 1) 6725 if (lpfc_nlp_put(ndlp)) 6726 return 1; 6727 return 0; 6728 } 6729 6730 /** 6731 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6732 * @phba: Pointer to hba context object. 6733 * 6734 * This function iterate through all FC nodes associated 6735 * will all vports to check if there is any node with 6736 * fc_rports associated with it. If there is an fc_rport 6737 * associated with the node, then the node is either in 6738 * discovered state or its devloss_timer is pending. 6739 */ 6740 static int 6741 lpfc_fcf_inuse(struct lpfc_hba *phba) 6742 { 6743 struct lpfc_vport **vports; 6744 int i, ret = 0; 6745 struct lpfc_nodelist *ndlp; 6746 struct Scsi_Host *shost; 6747 6748 vports = lpfc_create_vport_work_array(phba); 6749 6750 /* If driver cannot allocate memory, indicate fcf is in use */ 6751 if (!vports) 6752 return 1; 6753 6754 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6755 shost = lpfc_shost_from_vport(vports[i]); 6756 spin_lock_irq(shost->host_lock); 6757 /* 6758 * IF the CVL_RCVD bit is not set then we have sent the 6759 * flogi. 6760 * If dev_loss fires while we are waiting we do not want to 6761 * unreg the fcf. 6762 */ 6763 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6764 spin_unlock_irq(shost->host_lock); 6765 ret = 1; 6766 goto out; 6767 } 6768 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6769 if (ndlp->rport && 6770 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6771 ret = 1; 6772 spin_unlock_irq(shost->host_lock); 6773 goto out; 6774 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6775 ret = 1; 6776 lpfc_printf_log(phba, KERN_INFO, 6777 LOG_NODE | LOG_DISCOVERY, 6778 "2624 RPI %x DID %x flag %x " 6779 "still logged in\n", 6780 ndlp->nlp_rpi, ndlp->nlp_DID, 6781 ndlp->nlp_flag); 6782 } 6783 } 6784 spin_unlock_irq(shost->host_lock); 6785 } 6786 out: 6787 lpfc_destroy_vport_work_array(phba, vports); 6788 return ret; 6789 } 6790 6791 /** 6792 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6793 * @phba: Pointer to hba context object. 6794 * @mboxq: Pointer to mailbox object. 6795 * 6796 * This function frees memory associated with the mailbox command. 6797 */ 6798 void 6799 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6800 { 6801 struct lpfc_vport *vport = mboxq->vport; 6802 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6803 6804 if (mboxq->u.mb.mbxStatus) { 6805 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6806 "2555 UNREG_VFI mbxStatus error x%x " 6807 "HBA state x%x\n", 6808 mboxq->u.mb.mbxStatus, vport->port_state); 6809 } 6810 spin_lock_irq(shost->host_lock); 6811 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6812 spin_unlock_irq(shost->host_lock); 6813 mempool_free(mboxq, phba->mbox_mem_pool); 6814 return; 6815 } 6816 6817 /** 6818 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6819 * @phba: Pointer to hba context object. 6820 * @mboxq: Pointer to mailbox object. 6821 * 6822 * This function frees memory associated with the mailbox command. 6823 */ 6824 static void 6825 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6826 { 6827 struct lpfc_vport *vport = mboxq->vport; 6828 6829 if (mboxq->u.mb.mbxStatus) { 6830 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6831 "2550 UNREG_FCFI mbxStatus error x%x " 6832 "HBA state x%x\n", 6833 mboxq->u.mb.mbxStatus, vport->port_state); 6834 } 6835 mempool_free(mboxq, phba->mbox_mem_pool); 6836 return; 6837 } 6838 6839 /** 6840 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6841 * @phba: Pointer to hba context object. 6842 * 6843 * This function prepare the HBA for unregistering the currently registered 6844 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6845 * VFIs. 6846 */ 6847 int 6848 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6849 { 6850 struct lpfc_vport **vports; 6851 struct lpfc_nodelist *ndlp; 6852 struct Scsi_Host *shost; 6853 int i = 0, rc; 6854 6855 /* Unregister RPIs */ 6856 if (lpfc_fcf_inuse(phba)) 6857 lpfc_unreg_hba_rpis(phba); 6858 6859 /* At this point, all discovery is aborted */ 6860 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6861 6862 /* Unregister VPIs */ 6863 vports = lpfc_create_vport_work_array(phba); 6864 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6865 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6866 /* Stop FLOGI/FDISC retries */ 6867 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6868 if (ndlp) 6869 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6870 lpfc_cleanup_pending_mbox(vports[i]); 6871 if (phba->sli_rev == LPFC_SLI_REV4) 6872 lpfc_sli4_unreg_all_rpis(vports[i]); 6873 lpfc_mbx_unreg_vpi(vports[i]); 6874 shost = lpfc_shost_from_vport(vports[i]); 6875 spin_lock_irq(shost->host_lock); 6876 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6877 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6878 spin_unlock_irq(shost->host_lock); 6879 } 6880 lpfc_destroy_vport_work_array(phba, vports); 6881 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6882 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6883 if (ndlp) 6884 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6885 lpfc_cleanup_pending_mbox(phba->pport); 6886 if (phba->sli_rev == LPFC_SLI_REV4) 6887 lpfc_sli4_unreg_all_rpis(phba->pport); 6888 lpfc_mbx_unreg_vpi(phba->pport); 6889 shost = lpfc_shost_from_vport(phba->pport); 6890 spin_lock_irq(shost->host_lock); 6891 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6892 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6893 spin_unlock_irq(shost->host_lock); 6894 } 6895 6896 /* Cleanup any outstanding ELS commands */ 6897 lpfc_els_flush_all_cmd(phba); 6898 6899 /* Unregister the physical port VFI */ 6900 rc = lpfc_issue_unreg_vfi(phba->pport); 6901 return rc; 6902 } 6903 6904 /** 6905 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6906 * @phba: Pointer to hba context object. 6907 * 6908 * This function issues synchronous unregister FCF mailbox command to HBA to 6909 * unregister the currently registered FCF record. The driver does not reset 6910 * the driver FCF usage state flags. 6911 * 6912 * Return 0 if successfully issued, none-zero otherwise. 6913 */ 6914 int 6915 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6916 { 6917 LPFC_MBOXQ_t *mbox; 6918 int rc; 6919 6920 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6921 if (!mbox) { 6922 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6923 "2551 UNREG_FCFI mbox allocation failed" 6924 "HBA state x%x\n", phba->pport->port_state); 6925 return -ENOMEM; 6926 } 6927 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6928 mbox->vport = phba->pport; 6929 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6930 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6931 6932 if (rc == MBX_NOT_FINISHED) { 6933 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6934 "2552 Unregister FCFI command failed rc x%x " 6935 "HBA state x%x\n", 6936 rc, phba->pport->port_state); 6937 return -EINVAL; 6938 } 6939 return 0; 6940 } 6941 6942 /** 6943 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6944 * @phba: Pointer to hba context object. 6945 * 6946 * This function unregisters the currently reigstered FCF. This function 6947 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6948 */ 6949 void 6950 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6951 { 6952 int rc; 6953 6954 /* Preparation for unregistering fcf */ 6955 rc = lpfc_unregister_fcf_prep(phba); 6956 if (rc) { 6957 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6958 "2748 Failed to prepare for unregistering " 6959 "HBA's FCF record: rc=%d\n", rc); 6960 return; 6961 } 6962 6963 /* Now, unregister FCF record and reset HBA FCF state */ 6964 rc = lpfc_sli4_unregister_fcf(phba); 6965 if (rc) 6966 return; 6967 /* Reset HBA FCF states after successful unregister FCF */ 6968 phba->fcf.fcf_flag = 0; 6969 phba->fcf.current_rec.flag = 0; 6970 6971 /* 6972 * If driver is not unloading, check if there is any other 6973 * FCF record that can be used for discovery. 6974 */ 6975 if ((phba->pport->load_flag & FC_UNLOADING) || 6976 (phba->link_state < LPFC_LINK_UP)) 6977 return; 6978 6979 /* This is considered as the initial FCF discovery scan */ 6980 spin_lock_irq(&phba->hbalock); 6981 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6982 spin_unlock_irq(&phba->hbalock); 6983 6984 /* Reset FCF roundrobin bmask for new discovery */ 6985 lpfc_sli4_clear_fcf_rr_bmask(phba); 6986 6987 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6988 6989 if (rc) { 6990 spin_lock_irq(&phba->hbalock); 6991 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6992 spin_unlock_irq(&phba->hbalock); 6993 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6994 "2553 lpfc_unregister_unused_fcf failed " 6995 "to read FCF record HBA state x%x\n", 6996 phba->pport->port_state); 6997 } 6998 } 6999 7000 /** 7001 * lpfc_unregister_fcf - Unregister the currently registered fcf record 7002 * @phba: Pointer to hba context object. 7003 * 7004 * This function just unregisters the currently reigstered FCF. It does not 7005 * try to find another FCF for discovery. 7006 */ 7007 void 7008 lpfc_unregister_fcf(struct lpfc_hba *phba) 7009 { 7010 int rc; 7011 7012 /* Preparation for unregistering fcf */ 7013 rc = lpfc_unregister_fcf_prep(phba); 7014 if (rc) { 7015 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7016 "2749 Failed to prepare for unregistering " 7017 "HBA's FCF record: rc=%d\n", rc); 7018 return; 7019 } 7020 7021 /* Now, unregister FCF record and reset HBA FCF state */ 7022 rc = lpfc_sli4_unregister_fcf(phba); 7023 if (rc) 7024 return; 7025 /* Set proper HBA FCF states after successful unregister FCF */ 7026 spin_lock_irq(&phba->hbalock); 7027 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 7028 spin_unlock_irq(&phba->hbalock); 7029 } 7030 7031 /** 7032 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 7033 * @phba: Pointer to hba context object. 7034 * 7035 * This function check if there are any connected remote port for the FCF and 7036 * if all the devices are disconnected, this function unregister FCFI. 7037 * This function also tries to use another FCF for discovery. 7038 */ 7039 void 7040 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 7041 { 7042 /* 7043 * If HBA is not running in FIP mode, if HBA does not support 7044 * FCoE, if FCF discovery is ongoing, or if FCF has not been 7045 * registered, do nothing. 7046 */ 7047 spin_lock_irq(&phba->hbalock); 7048 if (!(phba->hba_flag & HBA_FCOE_MODE) || 7049 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 7050 !(phba->hba_flag & HBA_FIP_SUPPORT) || 7051 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 7052 (phba->pport->port_state == LPFC_FLOGI)) { 7053 spin_unlock_irq(&phba->hbalock); 7054 return; 7055 } 7056 spin_unlock_irq(&phba->hbalock); 7057 7058 if (lpfc_fcf_inuse(phba)) 7059 return; 7060 7061 lpfc_unregister_fcf_rescan(phba); 7062 } 7063 7064 /** 7065 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 7066 * @phba: Pointer to hba context object. 7067 * @buff: Buffer containing the FCF connection table as in the config 7068 * region. 7069 * This function create driver data structure for the FCF connection 7070 * record table read from config region 23. 7071 */ 7072 static void 7073 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 7074 uint8_t *buff) 7075 { 7076 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 7077 struct lpfc_fcf_conn_hdr *conn_hdr; 7078 struct lpfc_fcf_conn_rec *conn_rec; 7079 uint32_t record_count; 7080 int i; 7081 7082 /* Free the current connect table */ 7083 list_for_each_entry_safe(conn_entry, next_conn_entry, 7084 &phba->fcf_conn_rec_list, list) { 7085 list_del_init(&conn_entry->list); 7086 kfree(conn_entry); 7087 } 7088 7089 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 7090 record_count = conn_hdr->length * sizeof(uint32_t)/ 7091 sizeof(struct lpfc_fcf_conn_rec); 7092 7093 conn_rec = (struct lpfc_fcf_conn_rec *) 7094 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 7095 7096 for (i = 0; i < record_count; i++) { 7097 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 7098 continue; 7099 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 7100 GFP_KERNEL); 7101 if (!conn_entry) { 7102 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7103 "2566 Failed to allocate connection" 7104 " table entry\n"); 7105 return; 7106 } 7107 7108 memcpy(&conn_entry->conn_rec, &conn_rec[i], 7109 sizeof(struct lpfc_fcf_conn_rec)); 7110 list_add_tail(&conn_entry->list, 7111 &phba->fcf_conn_rec_list); 7112 } 7113 7114 if (!list_empty(&phba->fcf_conn_rec_list)) { 7115 i = 0; 7116 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 7117 list) { 7118 conn_rec = &conn_entry->conn_rec; 7119 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7120 "3345 FCF connection list rec[%02d]: " 7121 "flags:x%04x, vtag:x%04x, " 7122 "fabric_name:x%02x:%02x:%02x:%02x:" 7123 "%02x:%02x:%02x:%02x, " 7124 "switch_name:x%02x:%02x:%02x:%02x:" 7125 "%02x:%02x:%02x:%02x\n", i++, 7126 conn_rec->flags, conn_rec->vlan_tag, 7127 conn_rec->fabric_name[0], 7128 conn_rec->fabric_name[1], 7129 conn_rec->fabric_name[2], 7130 conn_rec->fabric_name[3], 7131 conn_rec->fabric_name[4], 7132 conn_rec->fabric_name[5], 7133 conn_rec->fabric_name[6], 7134 conn_rec->fabric_name[7], 7135 conn_rec->switch_name[0], 7136 conn_rec->switch_name[1], 7137 conn_rec->switch_name[2], 7138 conn_rec->switch_name[3], 7139 conn_rec->switch_name[4], 7140 conn_rec->switch_name[5], 7141 conn_rec->switch_name[6], 7142 conn_rec->switch_name[7]); 7143 } 7144 } 7145 } 7146 7147 /** 7148 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 7149 * @phba: Pointer to hba context object. 7150 * @buff: Buffer containing the FCoE parameter data structure. 7151 * 7152 * This function update driver data structure with config 7153 * parameters read from config region 23. 7154 */ 7155 static void 7156 lpfc_read_fcoe_param(struct lpfc_hba *phba, 7157 uint8_t *buff) 7158 { 7159 struct lpfc_fip_param_hdr *fcoe_param_hdr; 7160 struct lpfc_fcoe_params *fcoe_param; 7161 7162 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 7163 buff; 7164 fcoe_param = (struct lpfc_fcoe_params *) 7165 (buff + sizeof(struct lpfc_fip_param_hdr)); 7166 7167 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 7168 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 7169 return; 7170 7171 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 7172 phba->valid_vlan = 1; 7173 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 7174 0xFFF; 7175 } 7176 7177 phba->fc_map[0] = fcoe_param->fc_map[0]; 7178 phba->fc_map[1] = fcoe_param->fc_map[1]; 7179 phba->fc_map[2] = fcoe_param->fc_map[2]; 7180 return; 7181 } 7182 7183 /** 7184 * lpfc_get_rec_conf23 - Get a record type in config region data. 7185 * @buff: Buffer containing config region 23 data. 7186 * @size: Size of the data buffer. 7187 * @rec_type: Record type to be searched. 7188 * 7189 * This function searches config region data to find the beginning 7190 * of the record specified by record_type. If record found, this 7191 * function return pointer to the record else return NULL. 7192 */ 7193 static uint8_t * 7194 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 7195 { 7196 uint32_t offset = 0, rec_length; 7197 7198 if ((buff[0] == LPFC_REGION23_LAST_REC) || 7199 (size < sizeof(uint32_t))) 7200 return NULL; 7201 7202 rec_length = buff[offset + 1]; 7203 7204 /* 7205 * One TLV record has one word header and number of data words 7206 * specified in the rec_length field of the record header. 7207 */ 7208 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 7209 <= size) { 7210 if (buff[offset] == rec_type) 7211 return &buff[offset]; 7212 7213 if (buff[offset] == LPFC_REGION23_LAST_REC) 7214 return NULL; 7215 7216 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 7217 rec_length = buff[offset + 1]; 7218 } 7219 return NULL; 7220 } 7221 7222 /** 7223 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 7224 * @phba: Pointer to lpfc_hba data structure. 7225 * @buff: Buffer containing config region 23 data. 7226 * @size: Size of the data buffer. 7227 * 7228 * This function parses the FCoE config parameters in config region 23 and 7229 * populate driver data structure with the parameters. 7230 */ 7231 void 7232 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 7233 uint8_t *buff, 7234 uint32_t size) 7235 { 7236 uint32_t offset = 0; 7237 uint8_t *rec_ptr; 7238 7239 /* 7240 * If data size is less than 2 words signature and version cannot be 7241 * verified. 7242 */ 7243 if (size < 2*sizeof(uint32_t)) 7244 return; 7245 7246 /* Check the region signature first */ 7247 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 7248 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7249 "2567 Config region 23 has bad signature\n"); 7250 return; 7251 } 7252 7253 offset += 4; 7254 7255 /* Check the data structure version */ 7256 if (buff[offset] != LPFC_REGION23_VERSION) { 7257 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7258 "2568 Config region 23 has bad version\n"); 7259 return; 7260 } 7261 offset += 4; 7262 7263 /* Read FCoE param record */ 7264 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7265 size - offset, FCOE_PARAM_TYPE); 7266 if (rec_ptr) 7267 lpfc_read_fcoe_param(phba, rec_ptr); 7268 7269 /* Read FCF connection table */ 7270 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7271 size - offset, FCOE_CONN_TBL_TYPE); 7272 if (rec_ptr) 7273 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7274 7275 } 7276