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->trunk_link.phy_lnk_speed = 1246 LPFC_LINK_SPEED_UNKNOWN; 1247 phba->sli4_hba.link_state.logical_speed = 1248 LPFC_LINK_SPEED_UNKNOWN; 1249 } 1250 spin_lock_irq(shost->host_lock); 1251 phba->pport->fc_flag &= ~FC_LBIT; 1252 spin_unlock_irq(shost->host_lock); 1253 } 1254 vports = lpfc_create_vport_work_array(phba); 1255 if (vports != NULL) { 1256 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1257 /* Issue a LINK DOWN event to all nodes */ 1258 lpfc_linkdown_port(vports[i]); 1259 1260 vports[i]->fc_myDID = 0; 1261 1262 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1263 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1264 if (phba->nvmet_support) 1265 lpfc_nvmet_update_targetport(phba); 1266 else 1267 lpfc_nvme_update_localport(vports[i]); 1268 } 1269 } 1270 } 1271 lpfc_destroy_vport_work_array(phba, vports); 1272 1273 /* Clean up any SLI3 firmware default rpi's */ 1274 if (phba->sli_rev > LPFC_SLI_REV3 || offline) 1275 goto skip_unreg_did; 1276 1277 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1278 if (mb) { 1279 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 1280 mb->vport = vport; 1281 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1282 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1283 == MBX_NOT_FINISHED) { 1284 mempool_free(mb, phba->mbox_mem_pool); 1285 } 1286 } 1287 1288 skip_unreg_did: 1289 /* Setup myDID for link up if we are in pt2pt mode */ 1290 if (phba->pport->fc_flag & FC_PT2PT) { 1291 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1292 if (mb) { 1293 lpfc_config_link(phba, mb); 1294 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1295 mb->vport = vport; 1296 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1297 == MBX_NOT_FINISHED) { 1298 mempool_free(mb, phba->mbox_mem_pool); 1299 } 1300 } 1301 spin_lock_irq(shost->host_lock); 1302 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 1303 phba->pport->rcv_flogi_cnt = 0; 1304 spin_unlock_irq(shost->host_lock); 1305 } 1306 return 0; 1307 } 1308 1309 static void 1310 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 1311 { 1312 struct lpfc_nodelist *ndlp; 1313 1314 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 1315 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 1316 1317 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1318 continue; 1319 if (ndlp->nlp_type & NLP_FABRIC) { 1320 /* On Linkup its safe to clean up the ndlp 1321 * from Fabric connections. 1322 */ 1323 if (ndlp->nlp_DID != Fabric_DID) 1324 lpfc_unreg_rpi(vport, ndlp); 1325 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1326 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 1327 /* Fail outstanding IO now since device is 1328 * marked for PLOGI. 1329 */ 1330 lpfc_unreg_rpi(vport, ndlp); 1331 } 1332 } 1333 } 1334 1335 static void 1336 lpfc_linkup_port(struct lpfc_vport *vport) 1337 { 1338 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1339 struct lpfc_hba *phba = vport->phba; 1340 1341 if ((vport->load_flag & FC_UNLOADING) != 0) 1342 return; 1343 1344 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1345 "Link Up: top:x%x speed:x%x flg:x%x", 1346 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1347 1348 /* If NPIV is not enabled, only bring the physical port up */ 1349 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1350 (vport != phba->pport)) 1351 return; 1352 1353 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1354 fc_host_post_event(shost, fc_get_event_number(), 1355 FCH_EVT_LINKUP, 0); 1356 1357 spin_lock_irq(shost->host_lock); 1358 if (phba->defer_flogi_acc_flag) 1359 vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_RSCN_MODE | 1360 FC_NLP_MORE | FC_RSCN_DISCOVERY); 1361 else 1362 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | 1363 FC_ABORT_DISCOVERY | FC_RSCN_MODE | 1364 FC_NLP_MORE | FC_RSCN_DISCOVERY); 1365 vport->fc_flag |= FC_NDISC_ACTIVE; 1366 vport->fc_ns_retry = 0; 1367 spin_unlock_irq(shost->host_lock); 1368 lpfc_setup_fdmi_mask(vport); 1369 1370 lpfc_linkup_cleanup_nodes(vport); 1371 } 1372 1373 static int 1374 lpfc_linkup(struct lpfc_hba *phba) 1375 { 1376 struct lpfc_vport **vports; 1377 int i; 1378 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1379 1380 phba->link_state = LPFC_LINK_UP; 1381 1382 /* Unblock fabric iocbs if they are blocked */ 1383 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1384 del_timer_sync(&phba->fabric_block_timer); 1385 1386 vports = lpfc_create_vport_work_array(phba); 1387 if (vports != NULL) 1388 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1389 lpfc_linkup_port(vports[i]); 1390 lpfc_destroy_vport_work_array(phba, vports); 1391 1392 /* Clear the pport flogi counter in case the link down was 1393 * absorbed without an ACQE. No lock here - in worker thread 1394 * and discovery is synchronized. 1395 */ 1396 spin_lock_irq(shost->host_lock); 1397 phba->pport->rcv_flogi_cnt = 0; 1398 spin_unlock_irq(shost->host_lock); 1399 1400 /* reinitialize initial HBA flag */ 1401 phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_RHBA_CMPL); 1402 1403 return 0; 1404 } 1405 1406 /* 1407 * This routine handles processing a CLEAR_LA mailbox 1408 * command upon completion. It is setup in the LPFC_MBOXQ 1409 * as the completion routine when the command is 1410 * handed off to the SLI layer. SLI3 only. 1411 */ 1412 static void 1413 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1414 { 1415 struct lpfc_vport *vport = pmb->vport; 1416 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1417 struct lpfc_sli *psli = &phba->sli; 1418 MAILBOX_t *mb = &pmb->u.mb; 1419 uint32_t control; 1420 1421 /* Since we don't do discovery right now, turn these off here */ 1422 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1423 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1424 1425 /* Check for error */ 1426 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1427 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1428 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1429 "0320 CLEAR_LA mbxStatus error x%x hba " 1430 "state x%x\n", 1431 mb->mbxStatus, vport->port_state); 1432 phba->link_state = LPFC_HBA_ERROR; 1433 goto out; 1434 } 1435 1436 if (vport->port_type == LPFC_PHYSICAL_PORT) 1437 phba->link_state = LPFC_HBA_READY; 1438 1439 spin_lock_irq(&phba->hbalock); 1440 psli->sli_flag |= LPFC_PROCESS_LA; 1441 control = readl(phba->HCregaddr); 1442 control |= HC_LAINT_ENA; 1443 writel(control, phba->HCregaddr); 1444 readl(phba->HCregaddr); /* flush */ 1445 spin_unlock_irq(&phba->hbalock); 1446 mempool_free(pmb, phba->mbox_mem_pool); 1447 return; 1448 1449 out: 1450 /* Device Discovery completes */ 1451 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1452 "0225 Device Discovery completes\n"); 1453 mempool_free(pmb, phba->mbox_mem_pool); 1454 1455 spin_lock_irq(shost->host_lock); 1456 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1457 spin_unlock_irq(shost->host_lock); 1458 1459 lpfc_can_disctmo(vport); 1460 1461 /* turn on Link Attention interrupts */ 1462 1463 spin_lock_irq(&phba->hbalock); 1464 psli->sli_flag |= LPFC_PROCESS_LA; 1465 control = readl(phba->HCregaddr); 1466 control |= HC_LAINT_ENA; 1467 writel(control, phba->HCregaddr); 1468 readl(phba->HCregaddr); /* flush */ 1469 spin_unlock_irq(&phba->hbalock); 1470 1471 return; 1472 } 1473 1474 void 1475 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1476 { 1477 struct lpfc_vport *vport = pmb->vport; 1478 LPFC_MBOXQ_t *sparam_mb; 1479 u16 status = pmb->u.mb.mbxStatus; 1480 int rc; 1481 1482 mempool_free(pmb, phba->mbox_mem_pool); 1483 1484 if (status) 1485 goto out; 1486 1487 /* don't perform discovery for SLI4 loopback diagnostic test */ 1488 if ((phba->sli_rev == LPFC_SLI_REV4) && 1489 !(phba->hba_flag & HBA_FCOE_MODE) && 1490 (phba->link_flag & LS_LOOPBACK_MODE)) 1491 return; 1492 1493 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1494 vport->fc_flag & FC_PUBLIC_LOOP && 1495 !(vport->fc_flag & FC_LBIT)) { 1496 /* Need to wait for FAN - use discovery timer 1497 * for timeout. port_state is identically 1498 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1499 */ 1500 lpfc_set_disctmo(vport); 1501 return; 1502 } 1503 1504 /* Start discovery by sending a FLOGI. port_state is identically 1505 * LPFC_FLOGI while waiting for FLOGI cmpl. 1506 */ 1507 if (vport->port_state != LPFC_FLOGI) { 1508 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if 1509 * bb-credit recovery is in place. 1510 */ 1511 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 1512 !(phba->link_flag & LS_LOOPBACK_MODE)) { 1513 sparam_mb = mempool_alloc(phba->mbox_mem_pool, 1514 GFP_KERNEL); 1515 if (!sparam_mb) 1516 goto sparam_out; 1517 1518 rc = lpfc_read_sparam(phba, sparam_mb, 0); 1519 if (rc) { 1520 mempool_free(sparam_mb, phba->mbox_mem_pool); 1521 goto sparam_out; 1522 } 1523 sparam_mb->vport = vport; 1524 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1525 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT); 1526 if (rc == MBX_NOT_FINISHED) { 1527 lpfc_mbox_rsrc_cleanup(phba, sparam_mb, 1528 MBOX_THD_UNLOCKED); 1529 goto sparam_out; 1530 } 1531 1532 phba->hba_flag |= HBA_DEFER_FLOGI; 1533 } else { 1534 lpfc_initial_flogi(vport); 1535 } 1536 } else { 1537 if (vport->fc_flag & FC_PT2PT) 1538 lpfc_disc_start(vport); 1539 } 1540 return; 1541 1542 out: 1543 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1544 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", 1545 status, vport->port_state); 1546 1547 sparam_out: 1548 lpfc_linkdown(phba); 1549 1550 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1551 "0200 CONFIG_LINK bad hba state x%x\n", 1552 vport->port_state); 1553 1554 lpfc_issue_clear_la(phba, vport); 1555 return; 1556 } 1557 1558 /** 1559 * lpfc_sli4_clear_fcf_rr_bmask 1560 * @phba: pointer to the struct lpfc_hba for this port. 1561 * This fucnction resets the round robin bit mask and clears the 1562 * fcf priority list. The list deletions are done while holding the 1563 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1564 * from the lpfc_fcf_pri record. 1565 **/ 1566 void 1567 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1568 { 1569 struct lpfc_fcf_pri *fcf_pri; 1570 struct lpfc_fcf_pri *next_fcf_pri; 1571 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1572 spin_lock_irq(&phba->hbalock); 1573 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1574 &phba->fcf.fcf_pri_list, list) { 1575 list_del_init(&fcf_pri->list); 1576 fcf_pri->fcf_rec.flag = 0; 1577 } 1578 spin_unlock_irq(&phba->hbalock); 1579 } 1580 static void 1581 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1582 { 1583 struct lpfc_vport *vport = mboxq->vport; 1584 1585 if (mboxq->u.mb.mbxStatus) { 1586 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1587 "2017 REG_FCFI mbxStatus error x%x " 1588 "HBA state x%x\n", mboxq->u.mb.mbxStatus, 1589 vport->port_state); 1590 goto fail_out; 1591 } 1592 1593 /* Start FCoE discovery by sending a FLOGI. */ 1594 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1595 /* Set the FCFI registered flag */ 1596 spin_lock_irq(&phba->hbalock); 1597 phba->fcf.fcf_flag |= FCF_REGISTERED; 1598 spin_unlock_irq(&phba->hbalock); 1599 1600 /* If there is a pending FCoE event, restart FCF table scan. */ 1601 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1602 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1603 goto fail_out; 1604 1605 /* Mark successful completion of FCF table scan */ 1606 spin_lock_irq(&phba->hbalock); 1607 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1608 phba->hba_flag &= ~FCF_TS_INPROG; 1609 if (vport->port_state != LPFC_FLOGI) { 1610 phba->hba_flag |= FCF_RR_INPROG; 1611 spin_unlock_irq(&phba->hbalock); 1612 lpfc_issue_init_vfi(vport); 1613 goto out; 1614 } 1615 spin_unlock_irq(&phba->hbalock); 1616 goto out; 1617 1618 fail_out: 1619 spin_lock_irq(&phba->hbalock); 1620 phba->hba_flag &= ~FCF_RR_INPROG; 1621 spin_unlock_irq(&phba->hbalock); 1622 out: 1623 mempool_free(mboxq, phba->mbox_mem_pool); 1624 } 1625 1626 /** 1627 * lpfc_fab_name_match - Check if the fcf fabric name match. 1628 * @fab_name: pointer to fabric name. 1629 * @new_fcf_record: pointer to fcf record. 1630 * 1631 * This routine compare the fcf record's fabric name with provided 1632 * fabric name. If the fabric name are identical this function 1633 * returns 1 else return 0. 1634 **/ 1635 static uint32_t 1636 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1637 { 1638 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1639 return 0; 1640 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1641 return 0; 1642 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1643 return 0; 1644 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1645 return 0; 1646 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1647 return 0; 1648 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1649 return 0; 1650 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1651 return 0; 1652 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1653 return 0; 1654 return 1; 1655 } 1656 1657 /** 1658 * lpfc_sw_name_match - Check if the fcf switch name match. 1659 * @sw_name: pointer to switch name. 1660 * @new_fcf_record: pointer to fcf record. 1661 * 1662 * This routine compare the fcf record's switch name with provided 1663 * switch name. If the switch name are identical this function 1664 * returns 1 else return 0. 1665 **/ 1666 static uint32_t 1667 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1668 { 1669 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1670 return 0; 1671 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1672 return 0; 1673 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1674 return 0; 1675 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1676 return 0; 1677 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1678 return 0; 1679 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1680 return 0; 1681 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1682 return 0; 1683 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1684 return 0; 1685 return 1; 1686 } 1687 1688 /** 1689 * lpfc_mac_addr_match - Check if the fcf mac address match. 1690 * @mac_addr: pointer to mac address. 1691 * @new_fcf_record: pointer to fcf record. 1692 * 1693 * This routine compare the fcf record's mac address with HBA's 1694 * FCF mac address. If the mac addresses are identical this function 1695 * returns 1 else return 0. 1696 **/ 1697 static uint32_t 1698 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1699 { 1700 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1701 return 0; 1702 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1703 return 0; 1704 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1705 return 0; 1706 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1707 return 0; 1708 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1709 return 0; 1710 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1711 return 0; 1712 return 1; 1713 } 1714 1715 static bool 1716 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1717 { 1718 return (curr_vlan_id == new_vlan_id); 1719 } 1720 1721 /** 1722 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1723 * @phba: pointer to lpfc hba data structure. 1724 * @fcf_index: Index for the lpfc_fcf_record. 1725 * @new_fcf_record: pointer to hba fcf record. 1726 * 1727 * This routine updates the driver FCF priority record from the new HBA FCF 1728 * record. The hbalock is asserted held in the code path calling this 1729 * routine. 1730 **/ 1731 static void 1732 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1733 struct fcf_record *new_fcf_record 1734 ) 1735 { 1736 struct lpfc_fcf_pri *fcf_pri; 1737 1738 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1739 fcf_pri->fcf_rec.fcf_index = fcf_index; 1740 /* FCF record priority */ 1741 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1742 1743 } 1744 1745 /** 1746 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1747 * @fcf_rec: pointer to driver fcf record. 1748 * @new_fcf_record: pointer to fcf record. 1749 * 1750 * This routine copies the FCF information from the FCF 1751 * record to lpfc_hba data structure. 1752 **/ 1753 static void 1754 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1755 struct fcf_record *new_fcf_record) 1756 { 1757 /* Fabric name */ 1758 fcf_rec->fabric_name[0] = 1759 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1760 fcf_rec->fabric_name[1] = 1761 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1762 fcf_rec->fabric_name[2] = 1763 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1764 fcf_rec->fabric_name[3] = 1765 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1766 fcf_rec->fabric_name[4] = 1767 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1768 fcf_rec->fabric_name[5] = 1769 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1770 fcf_rec->fabric_name[6] = 1771 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1772 fcf_rec->fabric_name[7] = 1773 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1774 /* Mac address */ 1775 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1776 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1777 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1778 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1779 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1780 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1781 /* FCF record index */ 1782 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1783 /* FCF record priority */ 1784 fcf_rec->priority = new_fcf_record->fip_priority; 1785 /* Switch name */ 1786 fcf_rec->switch_name[0] = 1787 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1788 fcf_rec->switch_name[1] = 1789 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1790 fcf_rec->switch_name[2] = 1791 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1792 fcf_rec->switch_name[3] = 1793 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1794 fcf_rec->switch_name[4] = 1795 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1796 fcf_rec->switch_name[5] = 1797 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1798 fcf_rec->switch_name[6] = 1799 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1800 fcf_rec->switch_name[7] = 1801 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1802 } 1803 1804 /** 1805 * __lpfc_update_fcf_record - Update driver fcf record 1806 * @phba: pointer to lpfc hba data structure. 1807 * @fcf_rec: pointer to driver fcf record. 1808 * @new_fcf_record: pointer to hba fcf record. 1809 * @addr_mode: address mode to be set to the driver fcf record. 1810 * @vlan_id: vlan tag to be set to the driver fcf record. 1811 * @flag: flag bits to be set to the driver fcf record. 1812 * 1813 * This routine updates the driver FCF record from the new HBA FCF record 1814 * together with the address mode, vlan_id, and other informations. This 1815 * routine is called with the hbalock held. 1816 **/ 1817 static void 1818 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1819 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1820 uint16_t vlan_id, uint32_t flag) 1821 { 1822 lockdep_assert_held(&phba->hbalock); 1823 1824 /* Copy the fields from the HBA's FCF record */ 1825 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1826 /* Update other fields of driver FCF record */ 1827 fcf_rec->addr_mode = addr_mode; 1828 fcf_rec->vlan_id = vlan_id; 1829 fcf_rec->flag |= (flag | RECORD_VALID); 1830 __lpfc_update_fcf_record_pri(phba, 1831 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1832 new_fcf_record); 1833 } 1834 1835 /** 1836 * lpfc_register_fcf - Register the FCF with hba. 1837 * @phba: pointer to lpfc hba data structure. 1838 * 1839 * This routine issues a register fcfi mailbox command to register 1840 * the fcf with HBA. 1841 **/ 1842 static void 1843 lpfc_register_fcf(struct lpfc_hba *phba) 1844 { 1845 LPFC_MBOXQ_t *fcf_mbxq; 1846 int rc; 1847 1848 spin_lock_irq(&phba->hbalock); 1849 /* If the FCF is not available do nothing. */ 1850 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1851 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1852 spin_unlock_irq(&phba->hbalock); 1853 return; 1854 } 1855 1856 /* The FCF is already registered, start discovery */ 1857 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1858 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1859 phba->hba_flag &= ~FCF_TS_INPROG; 1860 if (phba->pport->port_state != LPFC_FLOGI && 1861 phba->pport->fc_flag & FC_FABRIC) { 1862 phba->hba_flag |= FCF_RR_INPROG; 1863 spin_unlock_irq(&phba->hbalock); 1864 lpfc_initial_flogi(phba->pport); 1865 return; 1866 } 1867 spin_unlock_irq(&phba->hbalock); 1868 return; 1869 } 1870 spin_unlock_irq(&phba->hbalock); 1871 1872 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1873 if (!fcf_mbxq) { 1874 spin_lock_irq(&phba->hbalock); 1875 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1876 spin_unlock_irq(&phba->hbalock); 1877 return; 1878 } 1879 1880 lpfc_reg_fcfi(phba, fcf_mbxq); 1881 fcf_mbxq->vport = phba->pport; 1882 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1883 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1884 if (rc == MBX_NOT_FINISHED) { 1885 spin_lock_irq(&phba->hbalock); 1886 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1887 spin_unlock_irq(&phba->hbalock); 1888 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1889 } 1890 1891 return; 1892 } 1893 1894 /** 1895 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1896 * @phba: pointer to lpfc hba data structure. 1897 * @new_fcf_record: pointer to fcf record. 1898 * @boot_flag: Indicates if this record used by boot bios. 1899 * @addr_mode: The address mode to be used by this FCF 1900 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1901 * 1902 * This routine compare the fcf record with connect list obtained from the 1903 * config region to decide if this FCF can be used for SAN discovery. It returns 1904 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1905 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1906 * is used by boot bios and addr_mode will indicate the addressing mode to be 1907 * used for this FCF when the function returns. 1908 * If the FCF record need to be used with a particular vlan id, the vlan is 1909 * set in the vlan_id on return of the function. If not VLAN tagging need to 1910 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1911 **/ 1912 static int 1913 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1914 struct fcf_record *new_fcf_record, 1915 uint32_t *boot_flag, uint32_t *addr_mode, 1916 uint16_t *vlan_id) 1917 { 1918 struct lpfc_fcf_conn_entry *conn_entry; 1919 int i, j, fcf_vlan_id = 0; 1920 1921 /* Find the lowest VLAN id in the FCF record */ 1922 for (i = 0; i < 512; i++) { 1923 if (new_fcf_record->vlan_bitmap[i]) { 1924 fcf_vlan_id = i * 8; 1925 j = 0; 1926 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1927 j++; 1928 fcf_vlan_id++; 1929 } 1930 break; 1931 } 1932 } 1933 1934 /* FCF not valid/available or solicitation in progress */ 1935 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1936 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1937 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1938 return 0; 1939 1940 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1941 *boot_flag = 0; 1942 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1943 new_fcf_record); 1944 if (phba->valid_vlan) 1945 *vlan_id = phba->vlan_id; 1946 else 1947 *vlan_id = LPFC_FCOE_NULL_VID; 1948 return 1; 1949 } 1950 1951 /* 1952 * If there are no FCF connection table entry, driver connect to all 1953 * FCFs. 1954 */ 1955 if (list_empty(&phba->fcf_conn_rec_list)) { 1956 *boot_flag = 0; 1957 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1958 new_fcf_record); 1959 1960 /* 1961 * When there are no FCF connect entries, use driver's default 1962 * addressing mode - FPMA. 1963 */ 1964 if (*addr_mode & LPFC_FCF_FPMA) 1965 *addr_mode = LPFC_FCF_FPMA; 1966 1967 /* If FCF record report a vlan id use that vlan id */ 1968 if (fcf_vlan_id) 1969 *vlan_id = fcf_vlan_id; 1970 else 1971 *vlan_id = LPFC_FCOE_NULL_VID; 1972 return 1; 1973 } 1974 1975 list_for_each_entry(conn_entry, 1976 &phba->fcf_conn_rec_list, list) { 1977 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1978 continue; 1979 1980 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1981 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1982 new_fcf_record)) 1983 continue; 1984 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1985 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1986 new_fcf_record)) 1987 continue; 1988 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1989 /* 1990 * If the vlan bit map does not have the bit set for the 1991 * vlan id to be used, then it is not a match. 1992 */ 1993 if (!(new_fcf_record->vlan_bitmap 1994 [conn_entry->conn_rec.vlan_tag / 8] & 1995 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1996 continue; 1997 } 1998 1999 /* 2000 * If connection record does not support any addressing mode, 2001 * skip the FCF record. 2002 */ 2003 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 2004 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 2005 continue; 2006 2007 /* 2008 * Check if the connection record specifies a required 2009 * addressing mode. 2010 */ 2011 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2012 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 2013 2014 /* 2015 * If SPMA required but FCF not support this continue. 2016 */ 2017 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2018 !(bf_get(lpfc_fcf_record_mac_addr_prov, 2019 new_fcf_record) & LPFC_FCF_SPMA)) 2020 continue; 2021 2022 /* 2023 * If FPMA required but FCF not support this continue. 2024 */ 2025 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2026 !(bf_get(lpfc_fcf_record_mac_addr_prov, 2027 new_fcf_record) & LPFC_FCF_FPMA)) 2028 continue; 2029 } 2030 2031 /* 2032 * This fcf record matches filtering criteria. 2033 */ 2034 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 2035 *boot_flag = 1; 2036 else 2037 *boot_flag = 0; 2038 2039 /* 2040 * If user did not specify any addressing mode, or if the 2041 * preferred addressing mode specified by user is not supported 2042 * by FCF, allow fabric to pick the addressing mode. 2043 */ 2044 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 2045 new_fcf_record); 2046 /* 2047 * If the user specified a required address mode, assign that 2048 * address mode 2049 */ 2050 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2051 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 2052 *addr_mode = (conn_entry->conn_rec.flags & 2053 FCFCNCT_AM_SPMA) ? 2054 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 2055 /* 2056 * If the user specified a preferred address mode, use the 2057 * addr mode only if FCF support the addr_mode. 2058 */ 2059 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2060 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2061 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2062 (*addr_mode & LPFC_FCF_SPMA)) 2063 *addr_mode = LPFC_FCF_SPMA; 2064 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2065 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2066 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2067 (*addr_mode & LPFC_FCF_FPMA)) 2068 *addr_mode = LPFC_FCF_FPMA; 2069 2070 /* If matching connect list has a vlan id, use it */ 2071 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 2072 *vlan_id = conn_entry->conn_rec.vlan_tag; 2073 /* 2074 * If no vlan id is specified in connect list, use the vlan id 2075 * in the FCF record 2076 */ 2077 else if (fcf_vlan_id) 2078 *vlan_id = fcf_vlan_id; 2079 else 2080 *vlan_id = LPFC_FCOE_NULL_VID; 2081 2082 return 1; 2083 } 2084 2085 return 0; 2086 } 2087 2088 /** 2089 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 2090 * @phba: pointer to lpfc hba data structure. 2091 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 2092 * 2093 * This function check if there is any fcoe event pending while driver 2094 * scan FCF entries. If there is any pending event, it will restart the 2095 * FCF saning and return 1 else return 0. 2096 */ 2097 int 2098 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 2099 { 2100 /* 2101 * If the Link is up and no FCoE events while in the 2102 * FCF discovery, no need to restart FCF discovery. 2103 */ 2104 if ((phba->link_state >= LPFC_LINK_UP) && 2105 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 2106 return 0; 2107 2108 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2109 "2768 Pending link or FCF event during current " 2110 "handling of the previous event: link_state:x%x, " 2111 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 2112 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 2113 phba->fcoe_eventtag); 2114 2115 spin_lock_irq(&phba->hbalock); 2116 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 2117 spin_unlock_irq(&phba->hbalock); 2118 2119 if (phba->link_state >= LPFC_LINK_UP) { 2120 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2121 "2780 Restart FCF table scan due to " 2122 "pending FCF event:evt_tag_at_scan:x%x, " 2123 "evt_tag_current:x%x\n", 2124 phba->fcoe_eventtag_at_fcf_scan, 2125 phba->fcoe_eventtag); 2126 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 2127 } else { 2128 /* 2129 * Do not continue FCF discovery and clear FCF_TS_INPROG 2130 * flag 2131 */ 2132 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2133 "2833 Stop FCF discovery process due to link " 2134 "state change (x%x)\n", phba->link_state); 2135 spin_lock_irq(&phba->hbalock); 2136 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 2137 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 2138 spin_unlock_irq(&phba->hbalock); 2139 } 2140 2141 /* Unregister the currently registered FCF if required */ 2142 if (unreg_fcf) { 2143 spin_lock_irq(&phba->hbalock); 2144 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 2145 spin_unlock_irq(&phba->hbalock); 2146 lpfc_sli4_unregister_fcf(phba); 2147 } 2148 return 1; 2149 } 2150 2151 /** 2152 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 2153 * @phba: pointer to lpfc hba data structure. 2154 * @fcf_cnt: number of eligible fcf record seen so far. 2155 * 2156 * This function makes an running random selection decision on FCF record to 2157 * use through a sequence of @fcf_cnt eligible FCF records with equal 2158 * probability. To perform integer manunipulation of random numbers with 2159 * size unit32_t, a 16-bit random number returned from get_random_u16() is 2160 * taken as the random random number generated. 2161 * 2162 * Returns true when outcome is for the newly read FCF record should be 2163 * chosen; otherwise, return false when outcome is for keeping the previously 2164 * chosen FCF record. 2165 **/ 2166 static bool 2167 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 2168 { 2169 uint32_t rand_num; 2170 2171 /* Get 16-bit uniform random number */ 2172 rand_num = get_random_u16(); 2173 2174 /* Decision with probability 1/fcf_cnt */ 2175 if ((fcf_cnt * rand_num) < 0xFFFF) 2176 return true; 2177 else 2178 return false; 2179 } 2180 2181 /** 2182 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 2183 * @phba: pointer to lpfc hba data structure. 2184 * @mboxq: pointer to mailbox object. 2185 * @next_fcf_index: pointer to holder of next fcf index. 2186 * 2187 * This routine parses the non-embedded fcf mailbox command by performing the 2188 * necessarily error checking, non-embedded read FCF record mailbox command 2189 * SGE parsing, and endianness swapping. 2190 * 2191 * Returns the pointer to the new FCF record in the non-embedded mailbox 2192 * command DMA memory if successfully, other NULL. 2193 */ 2194 static struct fcf_record * 2195 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 2196 uint16_t *next_fcf_index) 2197 { 2198 void *virt_addr; 2199 struct lpfc_mbx_sge sge; 2200 struct lpfc_mbx_read_fcf_tbl *read_fcf; 2201 uint32_t shdr_status, shdr_add_status, if_type; 2202 union lpfc_sli4_cfg_shdr *shdr; 2203 struct fcf_record *new_fcf_record; 2204 2205 /* Get the first SGE entry from the non-embedded DMA memory. This 2206 * routine only uses a single SGE. 2207 */ 2208 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 2209 if (unlikely(!mboxq->sge_array)) { 2210 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2211 "2524 Failed to get the non-embedded SGE " 2212 "virtual address\n"); 2213 return NULL; 2214 } 2215 virt_addr = mboxq->sge_array->addr[0]; 2216 2217 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 2218 lpfc_sli_pcimem_bcopy(shdr, shdr, 2219 sizeof(union lpfc_sli4_cfg_shdr)); 2220 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 2221 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2222 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 2223 if (shdr_status || shdr_add_status) { 2224 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 2225 if_type == LPFC_SLI_INTF_IF_TYPE_2) 2226 lpfc_printf_log(phba, KERN_ERR, 2227 LOG_TRACE_EVENT, 2228 "2726 READ_FCF_RECORD Indicates empty " 2229 "FCF table.\n"); 2230 else 2231 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2232 "2521 READ_FCF_RECORD mailbox failed " 2233 "with status x%x add_status x%x, " 2234 "mbx\n", shdr_status, shdr_add_status); 2235 return NULL; 2236 } 2237 2238 /* Interpreting the returned information of the FCF record */ 2239 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 2240 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 2241 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2242 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 2243 new_fcf_record = (struct fcf_record *)(virt_addr + 2244 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2245 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 2246 offsetof(struct fcf_record, vlan_bitmap)); 2247 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 2248 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 2249 2250 return new_fcf_record; 2251 } 2252 2253 /** 2254 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 2255 * @phba: pointer to lpfc hba data structure. 2256 * @fcf_record: pointer to the fcf record. 2257 * @vlan_id: the lowest vlan identifier associated to this fcf record. 2258 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 2259 * 2260 * This routine logs the detailed FCF record if the LOG_FIP loggin is 2261 * enabled. 2262 **/ 2263 static void 2264 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 2265 struct fcf_record *fcf_record, 2266 uint16_t vlan_id, 2267 uint16_t next_fcf_index) 2268 { 2269 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2270 "2764 READ_FCF_RECORD:\n" 2271 "\tFCF_Index : x%x\n" 2272 "\tFCF_Avail : x%x\n" 2273 "\tFCF_Valid : x%x\n" 2274 "\tFCF_SOL : x%x\n" 2275 "\tFIP_Priority : x%x\n" 2276 "\tMAC_Provider : x%x\n" 2277 "\tLowest VLANID : x%x\n" 2278 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 2279 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2280 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2281 "\tNext_FCF_Index: x%x\n", 2282 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 2283 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 2284 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 2285 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 2286 fcf_record->fip_priority, 2287 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 2288 vlan_id, 2289 bf_get(lpfc_fcf_record_mac_0, fcf_record), 2290 bf_get(lpfc_fcf_record_mac_1, fcf_record), 2291 bf_get(lpfc_fcf_record_mac_2, fcf_record), 2292 bf_get(lpfc_fcf_record_mac_3, fcf_record), 2293 bf_get(lpfc_fcf_record_mac_4, fcf_record), 2294 bf_get(lpfc_fcf_record_mac_5, fcf_record), 2295 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 2296 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 2297 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 2298 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 2299 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 2300 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 2301 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 2302 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 2303 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 2304 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 2305 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 2306 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 2307 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 2308 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 2309 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 2310 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 2311 next_fcf_index); 2312 } 2313 2314 /** 2315 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 2316 * @phba: pointer to lpfc hba data structure. 2317 * @fcf_rec: pointer to an existing FCF record. 2318 * @new_fcf_record: pointer to a new FCF record. 2319 * @new_vlan_id: vlan id from the new FCF record. 2320 * 2321 * This function performs matching test of a new FCF record against an existing 2322 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 2323 * will not be used as part of the FCF record matching criteria. 2324 * 2325 * Returns true if all the fields matching, otherwise returns false. 2326 */ 2327 static bool 2328 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 2329 struct lpfc_fcf_rec *fcf_rec, 2330 struct fcf_record *new_fcf_record, 2331 uint16_t new_vlan_id) 2332 { 2333 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 2334 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 2335 return false; 2336 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 2337 return false; 2338 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 2339 return false; 2340 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 2341 return false; 2342 if (fcf_rec->priority != new_fcf_record->fip_priority) 2343 return false; 2344 return true; 2345 } 2346 2347 /** 2348 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 2349 * @vport: Pointer to vport object. 2350 * @fcf_index: index to next fcf. 2351 * 2352 * This function processing the roundrobin fcf failover to next fcf index. 2353 * When this function is invoked, there will be a current fcf registered 2354 * for flogi. 2355 * Return: 0 for continue retrying flogi on currently registered fcf; 2356 * 1 for stop flogi on currently registered fcf; 2357 */ 2358 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 2359 { 2360 struct lpfc_hba *phba = vport->phba; 2361 int rc; 2362 2363 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2364 spin_lock_irq(&phba->hbalock); 2365 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2366 spin_unlock_irq(&phba->hbalock); 2367 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2368 "2872 Devloss tmo with no eligible " 2369 "FCF, unregister in-use FCF (x%x) " 2370 "and rescan FCF table\n", 2371 phba->fcf.current_rec.fcf_indx); 2372 lpfc_unregister_fcf_rescan(phba); 2373 goto stop_flogi_current_fcf; 2374 } 2375 /* Mark the end to FLOGI roundrobin failover */ 2376 phba->hba_flag &= ~FCF_RR_INPROG; 2377 /* Allow action to new fcf asynchronous event */ 2378 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2379 spin_unlock_irq(&phba->hbalock); 2380 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2381 "2865 No FCF available, stop roundrobin FCF " 2382 "failover and change port state:x%x/x%x\n", 2383 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2384 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2385 2386 if (!phba->fcf.fcf_redisc_attempted) { 2387 lpfc_unregister_fcf(phba); 2388 2389 rc = lpfc_sli4_redisc_fcf_table(phba); 2390 if (!rc) { 2391 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2392 "3195 Rediscover FCF table\n"); 2393 phba->fcf.fcf_redisc_attempted = 1; 2394 lpfc_sli4_clear_fcf_rr_bmask(phba); 2395 } else { 2396 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2397 "3196 Rediscover FCF table " 2398 "failed. Status:x%x\n", rc); 2399 } 2400 } else { 2401 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2402 "3197 Already rediscover FCF table " 2403 "attempted. No more retry\n"); 2404 } 2405 goto stop_flogi_current_fcf; 2406 } else { 2407 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2408 "2794 Try FLOGI roundrobin FCF failover to " 2409 "(x%x)\n", fcf_index); 2410 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2411 if (rc) 2412 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2413 "2761 FLOGI roundrobin FCF failover " 2414 "failed (rc:x%x) to read FCF (x%x)\n", 2415 rc, phba->fcf.current_rec.fcf_indx); 2416 else 2417 goto stop_flogi_current_fcf; 2418 } 2419 return 0; 2420 2421 stop_flogi_current_fcf: 2422 lpfc_can_disctmo(vport); 2423 return 1; 2424 } 2425 2426 /** 2427 * lpfc_sli4_fcf_pri_list_del 2428 * @phba: pointer to lpfc hba data structure. 2429 * @fcf_index: the index of the fcf record to delete 2430 * This routine checks the on list flag of the fcf_index to be deleted. 2431 * If it is one the list then it is removed from the list, and the flag 2432 * is cleared. This routine grab the hbalock before removing the fcf 2433 * record from the list. 2434 **/ 2435 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2436 uint16_t fcf_index) 2437 { 2438 struct lpfc_fcf_pri *new_fcf_pri; 2439 2440 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2441 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2442 "3058 deleting idx x%x pri x%x flg x%x\n", 2443 fcf_index, new_fcf_pri->fcf_rec.priority, 2444 new_fcf_pri->fcf_rec.flag); 2445 spin_lock_irq(&phba->hbalock); 2446 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2447 if (phba->fcf.current_rec.priority == 2448 new_fcf_pri->fcf_rec.priority) 2449 phba->fcf.eligible_fcf_cnt--; 2450 list_del_init(&new_fcf_pri->list); 2451 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2452 } 2453 spin_unlock_irq(&phba->hbalock); 2454 } 2455 2456 /** 2457 * lpfc_sli4_set_fcf_flogi_fail 2458 * @phba: pointer to lpfc hba data structure. 2459 * @fcf_index: the index of the fcf record to update 2460 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2461 * flag so the the round robin slection for the particular priority level 2462 * will try a different fcf record that does not have this bit set. 2463 * If the fcf record is re-read for any reason this flag is cleared brfore 2464 * adding it to the priority list. 2465 **/ 2466 void 2467 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2468 { 2469 struct lpfc_fcf_pri *new_fcf_pri; 2470 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2471 spin_lock_irq(&phba->hbalock); 2472 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2473 spin_unlock_irq(&phba->hbalock); 2474 } 2475 2476 /** 2477 * lpfc_sli4_fcf_pri_list_add 2478 * @phba: pointer to lpfc hba data structure. 2479 * @fcf_index: the index of the fcf record to add 2480 * @new_fcf_record: pointer to a new FCF record. 2481 * This routine checks the priority of the fcf_index to be added. 2482 * If it is a lower priority than the current head of the fcf_pri list 2483 * then it is added to the list in the right order. 2484 * If it is the same priority as the current head of the list then it 2485 * is added to the head of the list and its bit in the rr_bmask is set. 2486 * If the fcf_index to be added is of a higher priority than the current 2487 * head of the list then the rr_bmask is cleared, its bit is set in the 2488 * rr_bmask and it is added to the head of the list. 2489 * returns: 2490 * 0=success 1=failure 2491 **/ 2492 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2493 uint16_t fcf_index, 2494 struct fcf_record *new_fcf_record) 2495 { 2496 uint16_t current_fcf_pri; 2497 uint16_t last_index; 2498 struct lpfc_fcf_pri *fcf_pri; 2499 struct lpfc_fcf_pri *next_fcf_pri; 2500 struct lpfc_fcf_pri *new_fcf_pri; 2501 int ret; 2502 2503 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2504 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2505 "3059 adding idx x%x pri x%x flg x%x\n", 2506 fcf_index, new_fcf_record->fip_priority, 2507 new_fcf_pri->fcf_rec.flag); 2508 spin_lock_irq(&phba->hbalock); 2509 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2510 list_del_init(&new_fcf_pri->list); 2511 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2512 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2513 if (list_empty(&phba->fcf.fcf_pri_list)) { 2514 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2515 ret = lpfc_sli4_fcf_rr_index_set(phba, 2516 new_fcf_pri->fcf_rec.fcf_index); 2517 goto out; 2518 } 2519 2520 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2521 LPFC_SLI4_FCF_TBL_INDX_MAX); 2522 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2523 ret = 0; /* Empty rr list */ 2524 goto out; 2525 } 2526 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2527 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2528 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2529 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2530 memset(phba->fcf.fcf_rr_bmask, 0, 2531 sizeof(*phba->fcf.fcf_rr_bmask)); 2532 /* fcfs_at_this_priority_level = 1; */ 2533 phba->fcf.eligible_fcf_cnt = 1; 2534 } else 2535 /* fcfs_at_this_priority_level++; */ 2536 phba->fcf.eligible_fcf_cnt++; 2537 ret = lpfc_sli4_fcf_rr_index_set(phba, 2538 new_fcf_pri->fcf_rec.fcf_index); 2539 goto out; 2540 } 2541 2542 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2543 &phba->fcf.fcf_pri_list, list) { 2544 if (new_fcf_pri->fcf_rec.priority <= 2545 fcf_pri->fcf_rec.priority) { 2546 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2547 list_add(&new_fcf_pri->list, 2548 &phba->fcf.fcf_pri_list); 2549 else 2550 list_add(&new_fcf_pri->list, 2551 &((struct lpfc_fcf_pri *) 2552 fcf_pri->list.prev)->list); 2553 ret = 0; 2554 goto out; 2555 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2556 || new_fcf_pri->fcf_rec.priority < 2557 next_fcf_pri->fcf_rec.priority) { 2558 list_add(&new_fcf_pri->list, &fcf_pri->list); 2559 ret = 0; 2560 goto out; 2561 } 2562 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2563 continue; 2564 2565 } 2566 ret = 1; 2567 out: 2568 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2569 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2570 spin_unlock_irq(&phba->hbalock); 2571 return ret; 2572 } 2573 2574 /** 2575 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2576 * @phba: pointer to lpfc hba data structure. 2577 * @mboxq: pointer to mailbox object. 2578 * 2579 * This function iterates through all the fcf records available in 2580 * HBA and chooses the optimal FCF record for discovery. After finding 2581 * the FCF for discovery it registers the FCF record and kicks start 2582 * discovery. 2583 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2584 * use an FCF record which matches fabric name and mac address of the 2585 * currently used FCF record. 2586 * If the driver supports only one FCF, it will try to use the FCF record 2587 * used by BOOT_BIOS. 2588 */ 2589 void 2590 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2591 { 2592 struct fcf_record *new_fcf_record; 2593 uint32_t boot_flag, addr_mode; 2594 uint16_t fcf_index, next_fcf_index; 2595 struct lpfc_fcf_rec *fcf_rec = NULL; 2596 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2597 bool select_new_fcf; 2598 int rc; 2599 2600 /* If there is pending FCoE event restart FCF table scan */ 2601 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2602 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2603 return; 2604 } 2605 2606 /* Parse the FCF record from the non-embedded mailbox command */ 2607 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2608 &next_fcf_index); 2609 if (!new_fcf_record) { 2610 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2611 "2765 Mailbox command READ_FCF_RECORD " 2612 "failed to retrieve a FCF record.\n"); 2613 /* Let next new FCF event trigger fast failover */ 2614 spin_lock_irq(&phba->hbalock); 2615 phba->hba_flag &= ~FCF_TS_INPROG; 2616 spin_unlock_irq(&phba->hbalock); 2617 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2618 return; 2619 } 2620 2621 /* Check the FCF record against the connection list */ 2622 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2623 &addr_mode, &vlan_id); 2624 2625 /* Log the FCF record information if turned on */ 2626 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2627 next_fcf_index); 2628 2629 /* 2630 * If the fcf record does not match with connect list entries 2631 * read the next entry; otherwise, this is an eligible FCF 2632 * record for roundrobin FCF failover. 2633 */ 2634 if (!rc) { 2635 lpfc_sli4_fcf_pri_list_del(phba, 2636 bf_get(lpfc_fcf_record_fcf_index, 2637 new_fcf_record)); 2638 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2639 "2781 FCF (x%x) failed connection " 2640 "list check: (x%x/x%x/%x)\n", 2641 bf_get(lpfc_fcf_record_fcf_index, 2642 new_fcf_record), 2643 bf_get(lpfc_fcf_record_fcf_avail, 2644 new_fcf_record), 2645 bf_get(lpfc_fcf_record_fcf_valid, 2646 new_fcf_record), 2647 bf_get(lpfc_fcf_record_fcf_sol, 2648 new_fcf_record)); 2649 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2650 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2651 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2652 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2653 phba->fcf.current_rec.fcf_indx) { 2654 lpfc_printf_log(phba, KERN_ERR, 2655 LOG_TRACE_EVENT, 2656 "2862 FCF (x%x) matches property " 2657 "of in-use FCF (x%x)\n", 2658 bf_get(lpfc_fcf_record_fcf_index, 2659 new_fcf_record), 2660 phba->fcf.current_rec.fcf_indx); 2661 goto read_next_fcf; 2662 } 2663 /* 2664 * In case the current in-use FCF record becomes 2665 * invalid/unavailable during FCF discovery that 2666 * was not triggered by fast FCF failover process, 2667 * treat it as fast FCF failover. 2668 */ 2669 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2670 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2671 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2672 "2835 Invalid in-use FCF " 2673 "(x%x), enter FCF failover " 2674 "table scan.\n", 2675 phba->fcf.current_rec.fcf_indx); 2676 spin_lock_irq(&phba->hbalock); 2677 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2678 spin_unlock_irq(&phba->hbalock); 2679 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2680 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2681 LPFC_FCOE_FCF_GET_FIRST); 2682 return; 2683 } 2684 } 2685 goto read_next_fcf; 2686 } else { 2687 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2688 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2689 new_fcf_record); 2690 if (rc) 2691 goto read_next_fcf; 2692 } 2693 2694 /* 2695 * If this is not the first FCF discovery of the HBA, use last 2696 * FCF record for the discovery. The condition that a rescan 2697 * matches the in-use FCF record: fabric name, switch name, mac 2698 * address, and vlan_id. 2699 */ 2700 spin_lock_irq(&phba->hbalock); 2701 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2702 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2703 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2704 new_fcf_record, vlan_id)) { 2705 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2706 phba->fcf.current_rec.fcf_indx) { 2707 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2708 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2709 /* Stop FCF redisc wait timer */ 2710 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2711 phba); 2712 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2713 /* Fast failover, mark completed */ 2714 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2715 spin_unlock_irq(&phba->hbalock); 2716 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2717 "2836 New FCF matches in-use " 2718 "FCF (x%x), port_state:x%x, " 2719 "fc_flag:x%x\n", 2720 phba->fcf.current_rec.fcf_indx, 2721 phba->pport->port_state, 2722 phba->pport->fc_flag); 2723 goto out; 2724 } else 2725 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2726 "2863 New FCF (x%x) matches " 2727 "property of in-use FCF (x%x)\n", 2728 bf_get(lpfc_fcf_record_fcf_index, 2729 new_fcf_record), 2730 phba->fcf.current_rec.fcf_indx); 2731 } 2732 /* 2733 * Read next FCF record from HBA searching for the matching 2734 * with in-use record only if not during the fast failover 2735 * period. In case of fast failover period, it shall try to 2736 * determine whether the FCF record just read should be the 2737 * next candidate. 2738 */ 2739 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2740 spin_unlock_irq(&phba->hbalock); 2741 goto read_next_fcf; 2742 } 2743 } 2744 /* 2745 * Update on failover FCF record only if it's in FCF fast-failover 2746 * period; otherwise, update on current FCF record. 2747 */ 2748 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2749 fcf_rec = &phba->fcf.failover_rec; 2750 else 2751 fcf_rec = &phba->fcf.current_rec; 2752 2753 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2754 /* 2755 * If the driver FCF record does not have boot flag 2756 * set and new hba fcf record has boot flag set, use 2757 * the new hba fcf record. 2758 */ 2759 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2760 /* Choose this FCF record */ 2761 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2762 "2837 Update current FCF record " 2763 "(x%x) with new FCF record (x%x)\n", 2764 fcf_rec->fcf_indx, 2765 bf_get(lpfc_fcf_record_fcf_index, 2766 new_fcf_record)); 2767 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2768 addr_mode, vlan_id, BOOT_ENABLE); 2769 spin_unlock_irq(&phba->hbalock); 2770 goto read_next_fcf; 2771 } 2772 /* 2773 * If the driver FCF record has boot flag set and the 2774 * new hba FCF record does not have boot flag, read 2775 * the next FCF record. 2776 */ 2777 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2778 spin_unlock_irq(&phba->hbalock); 2779 goto read_next_fcf; 2780 } 2781 /* 2782 * If the new hba FCF record has lower priority value 2783 * than the driver FCF record, use the new record. 2784 */ 2785 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2786 /* Choose the new FCF record with lower priority */ 2787 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2788 "2838 Update current FCF record " 2789 "(x%x) with new FCF record (x%x)\n", 2790 fcf_rec->fcf_indx, 2791 bf_get(lpfc_fcf_record_fcf_index, 2792 new_fcf_record)); 2793 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2794 addr_mode, vlan_id, 0); 2795 /* Reset running random FCF selection count */ 2796 phba->fcf.eligible_fcf_cnt = 1; 2797 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2798 /* Update running random FCF selection count */ 2799 phba->fcf.eligible_fcf_cnt++; 2800 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2801 phba->fcf.eligible_fcf_cnt); 2802 if (select_new_fcf) { 2803 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2804 "2839 Update current FCF record " 2805 "(x%x) with new FCF record (x%x)\n", 2806 fcf_rec->fcf_indx, 2807 bf_get(lpfc_fcf_record_fcf_index, 2808 new_fcf_record)); 2809 /* Choose the new FCF by random selection */ 2810 __lpfc_update_fcf_record(phba, fcf_rec, 2811 new_fcf_record, 2812 addr_mode, vlan_id, 0); 2813 } 2814 } 2815 spin_unlock_irq(&phba->hbalock); 2816 goto read_next_fcf; 2817 } 2818 /* 2819 * This is the first suitable FCF record, choose this record for 2820 * initial best-fit FCF. 2821 */ 2822 if (fcf_rec) { 2823 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2824 "2840 Update initial FCF candidate " 2825 "with FCF (x%x)\n", 2826 bf_get(lpfc_fcf_record_fcf_index, 2827 new_fcf_record)); 2828 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2829 addr_mode, vlan_id, (boot_flag ? 2830 BOOT_ENABLE : 0)); 2831 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2832 /* Setup initial running random FCF selection count */ 2833 phba->fcf.eligible_fcf_cnt = 1; 2834 } 2835 spin_unlock_irq(&phba->hbalock); 2836 goto read_next_fcf; 2837 2838 read_next_fcf: 2839 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2840 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2841 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2842 /* 2843 * Case of FCF fast failover scan 2844 */ 2845 2846 /* 2847 * It has not found any suitable FCF record, cancel 2848 * FCF scan inprogress, and do nothing 2849 */ 2850 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2851 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2852 "2782 No suitable FCF found: " 2853 "(x%x/x%x)\n", 2854 phba->fcoe_eventtag_at_fcf_scan, 2855 bf_get(lpfc_fcf_record_fcf_index, 2856 new_fcf_record)); 2857 spin_lock_irq(&phba->hbalock); 2858 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2859 phba->hba_flag &= ~FCF_TS_INPROG; 2860 spin_unlock_irq(&phba->hbalock); 2861 /* Unregister in-use FCF and rescan */ 2862 lpfc_printf_log(phba, KERN_INFO, 2863 LOG_FIP, 2864 "2864 On devloss tmo " 2865 "unreg in-use FCF and " 2866 "rescan FCF table\n"); 2867 lpfc_unregister_fcf_rescan(phba); 2868 return; 2869 } 2870 /* 2871 * Let next new FCF event trigger fast failover 2872 */ 2873 phba->hba_flag &= ~FCF_TS_INPROG; 2874 spin_unlock_irq(&phba->hbalock); 2875 return; 2876 } 2877 /* 2878 * It has found a suitable FCF record that is not 2879 * the same as in-use FCF record, unregister the 2880 * in-use FCF record, replace the in-use FCF record 2881 * with the new FCF record, mark FCF fast failover 2882 * completed, and then start register the new FCF 2883 * record. 2884 */ 2885 2886 /* Unregister the current in-use FCF record */ 2887 lpfc_unregister_fcf(phba); 2888 2889 /* Replace in-use record with the new record */ 2890 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2891 "2842 Replace in-use FCF (x%x) " 2892 "with failover FCF (x%x)\n", 2893 phba->fcf.current_rec.fcf_indx, 2894 phba->fcf.failover_rec.fcf_indx); 2895 memcpy(&phba->fcf.current_rec, 2896 &phba->fcf.failover_rec, 2897 sizeof(struct lpfc_fcf_rec)); 2898 /* 2899 * Mark the fast FCF failover rediscovery completed 2900 * and the start of the first round of the roundrobin 2901 * FCF failover. 2902 */ 2903 spin_lock_irq(&phba->hbalock); 2904 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2905 spin_unlock_irq(&phba->hbalock); 2906 /* Register to the new FCF record */ 2907 lpfc_register_fcf(phba); 2908 } else { 2909 /* 2910 * In case of transaction period to fast FCF failover, 2911 * do nothing when search to the end of the FCF table. 2912 */ 2913 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2914 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2915 return; 2916 2917 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2918 phba->fcf.fcf_flag & FCF_IN_USE) { 2919 /* 2920 * In case the current in-use FCF record no 2921 * longer existed during FCF discovery that 2922 * was not triggered by fast FCF failover 2923 * process, treat it as fast FCF failover. 2924 */ 2925 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2926 "2841 In-use FCF record (x%x) " 2927 "not reported, entering fast " 2928 "FCF failover mode scanning.\n", 2929 phba->fcf.current_rec.fcf_indx); 2930 spin_lock_irq(&phba->hbalock); 2931 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2932 spin_unlock_irq(&phba->hbalock); 2933 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2934 LPFC_FCOE_FCF_GET_FIRST); 2935 return; 2936 } 2937 /* Register to the new FCF record */ 2938 lpfc_register_fcf(phba); 2939 } 2940 } else 2941 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2942 return; 2943 2944 out: 2945 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2946 lpfc_register_fcf(phba); 2947 2948 return; 2949 } 2950 2951 /** 2952 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2953 * @phba: pointer to lpfc hba data structure. 2954 * @mboxq: pointer to mailbox object. 2955 * 2956 * This is the callback function for FLOGI failure roundrobin FCF failover 2957 * read FCF record mailbox command from the eligible FCF record bmask for 2958 * performing the failover. If the FCF read back is not valid/available, it 2959 * fails through to retrying FLOGI to the currently registered FCF again. 2960 * Otherwise, if the FCF read back is valid and available, it will set the 2961 * newly read FCF record to the failover FCF record, unregister currently 2962 * registered FCF record, copy the failover FCF record to the current 2963 * FCF record, and then register the current FCF record before proceeding 2964 * to trying FLOGI on the new failover FCF. 2965 */ 2966 void 2967 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2968 { 2969 struct fcf_record *new_fcf_record; 2970 uint32_t boot_flag, addr_mode; 2971 uint16_t next_fcf_index, fcf_index; 2972 uint16_t current_fcf_index; 2973 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2974 int rc; 2975 2976 /* If link state is not up, stop the roundrobin failover process */ 2977 if (phba->link_state < LPFC_LINK_UP) { 2978 spin_lock_irq(&phba->hbalock); 2979 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2980 phba->hba_flag &= ~FCF_RR_INPROG; 2981 spin_unlock_irq(&phba->hbalock); 2982 goto out; 2983 } 2984 2985 /* Parse the FCF record from the non-embedded mailbox command */ 2986 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2987 &next_fcf_index); 2988 if (!new_fcf_record) { 2989 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2990 "2766 Mailbox command READ_FCF_RECORD " 2991 "failed to retrieve a FCF record. " 2992 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2993 phba->fcf.fcf_flag); 2994 lpfc_unregister_fcf_rescan(phba); 2995 goto out; 2996 } 2997 2998 /* Get the needed parameters from FCF record */ 2999 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 3000 &addr_mode, &vlan_id); 3001 3002 /* Log the FCF record information if turned on */ 3003 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 3004 next_fcf_index); 3005 3006 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3007 if (!rc) { 3008 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3009 "2848 Remove ineligible FCF (x%x) from " 3010 "from roundrobin bmask\n", fcf_index); 3011 /* Clear roundrobin bmask bit for ineligible FCF */ 3012 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 3013 /* Perform next round of roundrobin FCF failover */ 3014 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 3015 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 3016 if (rc) 3017 goto out; 3018 goto error_out; 3019 } 3020 3021 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 3022 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3023 "2760 Perform FLOGI roundrobin FCF failover: " 3024 "FCF (x%x) back to FCF (x%x)\n", 3025 phba->fcf.current_rec.fcf_indx, fcf_index); 3026 /* Wait 500 ms before retrying FLOGI to current FCF */ 3027 msleep(500); 3028 lpfc_issue_init_vfi(phba->pport); 3029 goto out; 3030 } 3031 3032 /* Upload new FCF record to the failover FCF record */ 3033 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3034 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 3035 phba->fcf.failover_rec.fcf_indx, fcf_index); 3036 spin_lock_irq(&phba->hbalock); 3037 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 3038 new_fcf_record, addr_mode, vlan_id, 3039 (boot_flag ? BOOT_ENABLE : 0)); 3040 spin_unlock_irq(&phba->hbalock); 3041 3042 current_fcf_index = phba->fcf.current_rec.fcf_indx; 3043 3044 /* Unregister the current in-use FCF record */ 3045 lpfc_unregister_fcf(phba); 3046 3047 /* Replace in-use record with the new record */ 3048 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 3049 sizeof(struct lpfc_fcf_rec)); 3050 3051 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3052 "2783 Perform FLOGI roundrobin FCF failover: FCF " 3053 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 3054 3055 error_out: 3056 lpfc_register_fcf(phba); 3057 out: 3058 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3059 } 3060 3061 /** 3062 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 3063 * @phba: pointer to lpfc hba data structure. 3064 * @mboxq: pointer to mailbox object. 3065 * 3066 * This is the callback function of read FCF record mailbox command for 3067 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 3068 * failover when a new FCF event happened. If the FCF read back is 3069 * valid/available and it passes the connection list check, it updates 3070 * the bmask for the eligible FCF record for roundrobin failover. 3071 */ 3072 void 3073 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3074 { 3075 struct fcf_record *new_fcf_record; 3076 uint32_t boot_flag, addr_mode; 3077 uint16_t fcf_index, next_fcf_index; 3078 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 3079 int rc; 3080 3081 /* If link state is not up, no need to proceed */ 3082 if (phba->link_state < LPFC_LINK_UP) 3083 goto out; 3084 3085 /* If FCF discovery period is over, no need to proceed */ 3086 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 3087 goto out; 3088 3089 /* Parse the FCF record from the non-embedded mailbox command */ 3090 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 3091 &next_fcf_index); 3092 if (!new_fcf_record) { 3093 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3094 "2767 Mailbox command READ_FCF_RECORD " 3095 "failed to retrieve a FCF record.\n"); 3096 goto out; 3097 } 3098 3099 /* Check the connection list for eligibility */ 3100 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 3101 &addr_mode, &vlan_id); 3102 3103 /* Log the FCF record information if turned on */ 3104 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 3105 next_fcf_index); 3106 3107 if (!rc) 3108 goto out; 3109 3110 /* Update the eligible FCF record index bmask */ 3111 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3112 3113 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 3114 3115 out: 3116 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3117 } 3118 3119 /** 3120 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 3121 * @phba: pointer to lpfc hba data structure. 3122 * @mboxq: pointer to mailbox data structure. 3123 * 3124 * This function handles completion of init vfi mailbox command. 3125 */ 3126 static void 3127 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3128 { 3129 struct lpfc_vport *vport = mboxq->vport; 3130 3131 /* 3132 * VFI not supported on interface type 0, just do the flogi 3133 * Also continue if the VFI is in use - just use the same one. 3134 */ 3135 if (mboxq->u.mb.mbxStatus && 3136 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3137 LPFC_SLI_INTF_IF_TYPE_0) && 3138 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3139 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3140 "2891 Init VFI mailbox failed 0x%x\n", 3141 mboxq->u.mb.mbxStatus); 3142 mempool_free(mboxq, phba->mbox_mem_pool); 3143 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3144 return; 3145 } 3146 3147 lpfc_initial_flogi(vport); 3148 mempool_free(mboxq, phba->mbox_mem_pool); 3149 return; 3150 } 3151 3152 /** 3153 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 3154 * @vport: pointer to lpfc_vport data structure. 3155 * 3156 * This function issue a init_vfi mailbox command to initialize the VFI and 3157 * VPI for the physical port. 3158 */ 3159 void 3160 lpfc_issue_init_vfi(struct lpfc_vport *vport) 3161 { 3162 LPFC_MBOXQ_t *mboxq; 3163 int rc; 3164 struct lpfc_hba *phba = vport->phba; 3165 3166 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3167 if (!mboxq) { 3168 lpfc_printf_vlog(vport, KERN_ERR, 3169 LOG_TRACE_EVENT, "2892 Failed to allocate " 3170 "init_vfi mailbox\n"); 3171 return; 3172 } 3173 lpfc_init_vfi(mboxq, vport); 3174 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 3175 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 3176 if (rc == MBX_NOT_FINISHED) { 3177 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3178 "2893 Failed to issue init_vfi mailbox\n"); 3179 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3180 } 3181 } 3182 3183 /** 3184 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 3185 * @phba: pointer to lpfc hba data structure. 3186 * @mboxq: pointer to mailbox data structure. 3187 * 3188 * This function handles completion of init vpi mailbox command. 3189 */ 3190 void 3191 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3192 { 3193 struct lpfc_vport *vport = mboxq->vport; 3194 struct lpfc_nodelist *ndlp; 3195 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3196 3197 if (mboxq->u.mb.mbxStatus) { 3198 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3199 "2609 Init VPI mailbox failed 0x%x\n", 3200 mboxq->u.mb.mbxStatus); 3201 mempool_free(mboxq, phba->mbox_mem_pool); 3202 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3203 return; 3204 } 3205 spin_lock_irq(shost->host_lock); 3206 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3207 spin_unlock_irq(shost->host_lock); 3208 3209 /* If this port is physical port or FDISC is done, do reg_vpi */ 3210 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 3211 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3212 if (!ndlp) 3213 lpfc_printf_vlog(vport, KERN_ERR, 3214 LOG_TRACE_EVENT, 3215 "2731 Cannot find fabric " 3216 "controller node\n"); 3217 else 3218 lpfc_register_new_vport(phba, vport, ndlp); 3219 mempool_free(mboxq, phba->mbox_mem_pool); 3220 return; 3221 } 3222 3223 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3224 lpfc_initial_fdisc(vport); 3225 else { 3226 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 3227 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3228 "2606 No NPIV Fabric support\n"); 3229 } 3230 mempool_free(mboxq, phba->mbox_mem_pool); 3231 return; 3232 } 3233 3234 /** 3235 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 3236 * @vport: pointer to lpfc_vport data structure. 3237 * 3238 * This function issue a init_vpi mailbox command to initialize 3239 * VPI for the vport. 3240 */ 3241 void 3242 lpfc_issue_init_vpi(struct lpfc_vport *vport) 3243 { 3244 LPFC_MBOXQ_t *mboxq; 3245 int rc, vpi; 3246 3247 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 3248 vpi = lpfc_alloc_vpi(vport->phba); 3249 if (!vpi) { 3250 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3251 "3303 Failed to obtain vport vpi\n"); 3252 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3253 return; 3254 } 3255 vport->vpi = vpi; 3256 } 3257 3258 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 3259 if (!mboxq) { 3260 lpfc_printf_vlog(vport, KERN_ERR, 3261 LOG_TRACE_EVENT, "2607 Failed to allocate " 3262 "init_vpi mailbox\n"); 3263 return; 3264 } 3265 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 3266 mboxq->vport = vport; 3267 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 3268 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 3269 if (rc == MBX_NOT_FINISHED) { 3270 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3271 "2608 Failed to issue init_vpi mailbox\n"); 3272 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3273 } 3274 } 3275 3276 /** 3277 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 3278 * @phba: pointer to lpfc hba data structure. 3279 * 3280 * This function loops through the list of vports on the @phba and issues an 3281 * FDISC if possible. 3282 */ 3283 void 3284 lpfc_start_fdiscs(struct lpfc_hba *phba) 3285 { 3286 struct lpfc_vport **vports; 3287 int i; 3288 3289 vports = lpfc_create_vport_work_array(phba); 3290 if (vports != NULL) { 3291 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3292 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 3293 continue; 3294 /* There are no vpi for this vport */ 3295 if (vports[i]->vpi > phba->max_vpi) { 3296 lpfc_vport_set_state(vports[i], 3297 FC_VPORT_FAILED); 3298 continue; 3299 } 3300 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3301 lpfc_vport_set_state(vports[i], 3302 FC_VPORT_LINKDOWN); 3303 continue; 3304 } 3305 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 3306 lpfc_issue_init_vpi(vports[i]); 3307 continue; 3308 } 3309 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3310 lpfc_initial_fdisc(vports[i]); 3311 else { 3312 lpfc_vport_set_state(vports[i], 3313 FC_VPORT_NO_FABRIC_SUPP); 3314 lpfc_printf_vlog(vports[i], KERN_ERR, 3315 LOG_TRACE_EVENT, 3316 "0259 No NPIV " 3317 "Fabric support\n"); 3318 } 3319 } 3320 } 3321 lpfc_destroy_vport_work_array(phba, vports); 3322 } 3323 3324 void 3325 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3326 { 3327 struct lpfc_vport *vport = mboxq->vport; 3328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3329 3330 /* 3331 * VFI not supported for interface type 0, so ignore any mailbox 3332 * error (except VFI in use) and continue with the discovery. 3333 */ 3334 if (mboxq->u.mb.mbxStatus && 3335 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3336 LPFC_SLI_INTF_IF_TYPE_0) && 3337 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3338 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3339 "2018 REG_VFI mbxStatus error x%x " 3340 "HBA state x%x\n", 3341 mboxq->u.mb.mbxStatus, vport->port_state); 3342 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3343 /* FLOGI failed, use loop map to make discovery list */ 3344 lpfc_disc_list_loopmap(vport); 3345 /* Start discovery */ 3346 lpfc_disc_start(vport); 3347 goto out_free_mem; 3348 } 3349 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3350 goto out_free_mem; 3351 } 3352 3353 /* If the VFI is already registered, there is nothing else to do 3354 * Unless this was a VFI update and we are in PT2PT mode, then 3355 * we should drop through to set the port state to ready. 3356 */ 3357 if (vport->fc_flag & FC_VFI_REGISTERED) 3358 if (!(phba->sli_rev == LPFC_SLI_REV4 && 3359 vport->fc_flag & FC_PT2PT)) 3360 goto out_free_mem; 3361 3362 /* The VPI is implicitly registered when the VFI is registered */ 3363 spin_lock_irq(shost->host_lock); 3364 vport->vpi_state |= LPFC_VPI_REGISTERED; 3365 vport->fc_flag |= FC_VFI_REGISTERED; 3366 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3367 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3368 spin_unlock_irq(shost->host_lock); 3369 3370 /* In case SLI4 FC loopback test, we are ready */ 3371 if ((phba->sli_rev == LPFC_SLI_REV4) && 3372 (phba->link_flag & LS_LOOPBACK_MODE)) { 3373 phba->link_state = LPFC_HBA_READY; 3374 goto out_free_mem; 3375 } 3376 3377 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3378 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3379 "alpacnt:%d LinkState:%x topology:%x\n", 3380 vport->port_state, vport->fc_flag, vport->fc_myDID, 3381 vport->phba->alpa_map[0], 3382 phba->link_state, phba->fc_topology); 3383 3384 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3385 /* 3386 * For private loop or for NPort pt2pt, 3387 * just start discovery and we are done. 3388 */ 3389 if ((vport->fc_flag & FC_PT2PT) || 3390 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3391 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3392 3393 /* Use loop map to make discovery list */ 3394 lpfc_disc_list_loopmap(vport); 3395 /* Start discovery */ 3396 if (vport->fc_flag & FC_PT2PT) 3397 vport->port_state = LPFC_VPORT_READY; 3398 else 3399 lpfc_disc_start(vport); 3400 } else { 3401 lpfc_start_fdiscs(phba); 3402 lpfc_do_scr_ns_plogi(phba, vport); 3403 } 3404 } 3405 3406 out_free_mem: 3407 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); 3408 } 3409 3410 static void 3411 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3412 { 3413 MAILBOX_t *mb = &pmb->u.mb; 3414 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3415 struct lpfc_vport *vport = pmb->vport; 3416 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3417 struct serv_parm *sp = &vport->fc_sparam; 3418 uint32_t ed_tov; 3419 3420 /* Check for error */ 3421 if (mb->mbxStatus) { 3422 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3423 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3424 "0319 READ_SPARAM mbxStatus error x%x " 3425 "hba state x%x>\n", 3426 mb->mbxStatus, vport->port_state); 3427 lpfc_linkdown(phba); 3428 goto out; 3429 } 3430 3431 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3432 sizeof (struct serv_parm)); 3433 3434 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3435 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3436 ed_tov = (ed_tov + 999999) / 1000000; 3437 3438 phba->fc_edtov = ed_tov; 3439 phba->fc_ratov = (2 * ed_tov) / 1000; 3440 if (phba->fc_ratov < FF_DEF_RATOV) { 3441 /* RA_TOV should be atleast 10sec for initial flogi */ 3442 phba->fc_ratov = FF_DEF_RATOV; 3443 } 3444 3445 lpfc_update_vport_wwn(vport); 3446 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3447 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3448 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3449 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3450 } 3451 3452 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3453 3454 /* Check if sending the FLOGI is being deferred to after we get 3455 * up to date CSPs from MBX_READ_SPARAM. 3456 */ 3457 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3458 lpfc_initial_flogi(vport); 3459 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3460 } 3461 return; 3462 3463 out: 3464 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3465 lpfc_issue_clear_la(phba, vport); 3466 } 3467 3468 static void 3469 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3470 { 3471 struct lpfc_vport *vport = phba->pport; 3472 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3473 struct Scsi_Host *shost; 3474 int i; 3475 int rc; 3476 struct fcf_record *fcf_record; 3477 uint32_t fc_flags = 0; 3478 unsigned long iflags; 3479 3480 spin_lock_irqsave(&phba->hbalock, iflags); 3481 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3482 3483 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3484 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3485 case LPFC_LINK_SPEED_1GHZ: 3486 case LPFC_LINK_SPEED_2GHZ: 3487 case LPFC_LINK_SPEED_4GHZ: 3488 case LPFC_LINK_SPEED_8GHZ: 3489 case LPFC_LINK_SPEED_10GHZ: 3490 case LPFC_LINK_SPEED_16GHZ: 3491 case LPFC_LINK_SPEED_32GHZ: 3492 case LPFC_LINK_SPEED_64GHZ: 3493 case LPFC_LINK_SPEED_128GHZ: 3494 case LPFC_LINK_SPEED_256GHZ: 3495 break; 3496 default: 3497 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3498 break; 3499 } 3500 } 3501 3502 if (phba->fc_topology && 3503 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3504 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3505 "3314 Toplogy changed was 0x%x is 0x%x\n", 3506 phba->fc_topology, 3507 bf_get(lpfc_mbx_read_top_topology, la)); 3508 phba->fc_topology_changed = 1; 3509 } 3510 3511 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3512 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA); 3513 3514 shost = lpfc_shost_from_vport(vport); 3515 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3516 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3517 3518 /* if npiv is enabled and this adapter supports npiv log 3519 * a message that npiv is not supported in this topology 3520 */ 3521 if (phba->cfg_enable_npiv && phba->max_vpi) 3522 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3523 "1309 Link Up Event npiv not supported in loop " 3524 "topology\n"); 3525 /* Get Loop Map information */ 3526 if (bf_get(lpfc_mbx_read_top_il, la)) 3527 fc_flags |= FC_LBIT; 3528 3529 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3530 i = la->lilpBde64.tus.f.bdeSize; 3531 3532 if (i == 0) { 3533 phba->alpa_map[0] = 0; 3534 } else { 3535 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3536 int numalpa, j, k; 3537 union { 3538 uint8_t pamap[16]; 3539 struct { 3540 uint32_t wd1; 3541 uint32_t wd2; 3542 uint32_t wd3; 3543 uint32_t wd4; 3544 } pa; 3545 } un; 3546 numalpa = phba->alpa_map[0]; 3547 j = 0; 3548 while (j < numalpa) { 3549 memset(un.pamap, 0, 16); 3550 for (k = 1; j < numalpa; k++) { 3551 un.pamap[k - 1] = 3552 phba->alpa_map[j + 1]; 3553 j++; 3554 if (k == 16) 3555 break; 3556 } 3557 /* Link Up Event ALPA map */ 3558 lpfc_printf_log(phba, 3559 KERN_WARNING, 3560 LOG_LINK_EVENT, 3561 "1304 Link Up Event " 3562 "ALPA map Data: x%x " 3563 "x%x x%x x%x\n", 3564 un.pa.wd1, un.pa.wd2, 3565 un.pa.wd3, un.pa.wd4); 3566 } 3567 } 3568 } 3569 } else { 3570 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3571 if (phba->max_vpi && phba->cfg_enable_npiv && 3572 (phba->sli_rev >= LPFC_SLI_REV3)) 3573 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3574 } 3575 vport->fc_myDID = phba->fc_pref_DID; 3576 fc_flags |= FC_LBIT; 3577 } 3578 spin_unlock_irqrestore(&phba->hbalock, iflags); 3579 3580 if (fc_flags) { 3581 spin_lock_irqsave(shost->host_lock, iflags); 3582 vport->fc_flag |= fc_flags; 3583 spin_unlock_irqrestore(shost->host_lock, iflags); 3584 } 3585 3586 lpfc_linkup(phba); 3587 sparam_mbox = NULL; 3588 3589 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3590 if (!sparam_mbox) 3591 goto out; 3592 3593 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3594 if (rc) { 3595 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3596 goto out; 3597 } 3598 sparam_mbox->vport = vport; 3599 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3600 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3601 if (rc == MBX_NOT_FINISHED) { 3602 lpfc_mbox_rsrc_cleanup(phba, sparam_mbox, MBOX_THD_UNLOCKED); 3603 goto out; 3604 } 3605 3606 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3607 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3608 if (!cfglink_mbox) 3609 goto out; 3610 vport->port_state = LPFC_LOCAL_CFG_LINK; 3611 lpfc_config_link(phba, cfglink_mbox); 3612 cfglink_mbox->vport = vport; 3613 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3614 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3615 if (rc == MBX_NOT_FINISHED) { 3616 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3617 goto out; 3618 } 3619 } else { 3620 vport->port_state = LPFC_VPORT_UNKNOWN; 3621 /* 3622 * Add the driver's default FCF record at FCF index 0 now. This 3623 * is phase 1 implementation that support FCF index 0 and driver 3624 * defaults. 3625 */ 3626 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3627 fcf_record = kzalloc(sizeof(struct fcf_record), 3628 GFP_KERNEL); 3629 if (unlikely(!fcf_record)) { 3630 lpfc_printf_log(phba, KERN_ERR, 3631 LOG_TRACE_EVENT, 3632 "2554 Could not allocate memory for " 3633 "fcf record\n"); 3634 rc = -ENODEV; 3635 goto out; 3636 } 3637 3638 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3639 LPFC_FCOE_FCF_DEF_INDEX); 3640 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3641 if (unlikely(rc)) { 3642 lpfc_printf_log(phba, KERN_ERR, 3643 LOG_TRACE_EVENT, 3644 "2013 Could not manually add FCF " 3645 "record 0, status %d\n", rc); 3646 rc = -ENODEV; 3647 kfree(fcf_record); 3648 goto out; 3649 } 3650 kfree(fcf_record); 3651 } 3652 /* 3653 * The driver is expected to do FIP/FCF. Call the port 3654 * and get the FCF Table. 3655 */ 3656 spin_lock_irqsave(&phba->hbalock, iflags); 3657 if (phba->hba_flag & FCF_TS_INPROG) { 3658 spin_unlock_irqrestore(&phba->hbalock, iflags); 3659 return; 3660 } 3661 /* This is the initial FCF discovery scan */ 3662 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3663 spin_unlock_irqrestore(&phba->hbalock, iflags); 3664 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3665 "2778 Start FCF table scan at linkup\n"); 3666 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3667 LPFC_FCOE_FCF_GET_FIRST); 3668 if (rc) { 3669 spin_lock_irqsave(&phba->hbalock, iflags); 3670 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3671 spin_unlock_irqrestore(&phba->hbalock, iflags); 3672 goto out; 3673 } 3674 /* Reset FCF roundrobin bmask for new discovery */ 3675 lpfc_sli4_clear_fcf_rr_bmask(phba); 3676 } 3677 3678 /* Prepare for LINK up registrations */ 3679 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3680 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3681 init_utsname()->nodename); 3682 return; 3683 out: 3684 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3685 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3686 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3687 vport->port_state, sparam_mbox, cfglink_mbox); 3688 lpfc_issue_clear_la(phba, vport); 3689 return; 3690 } 3691 3692 static void 3693 lpfc_enable_la(struct lpfc_hba *phba) 3694 { 3695 uint32_t control; 3696 struct lpfc_sli *psli = &phba->sli; 3697 spin_lock_irq(&phba->hbalock); 3698 psli->sli_flag |= LPFC_PROCESS_LA; 3699 if (phba->sli_rev <= LPFC_SLI_REV3) { 3700 control = readl(phba->HCregaddr); 3701 control |= HC_LAINT_ENA; 3702 writel(control, phba->HCregaddr); 3703 readl(phba->HCregaddr); /* flush */ 3704 } 3705 spin_unlock_irq(&phba->hbalock); 3706 } 3707 3708 static void 3709 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3710 { 3711 lpfc_linkdown(phba); 3712 lpfc_enable_la(phba); 3713 lpfc_unregister_unused_fcf(phba); 3714 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3715 } 3716 3717 3718 /* 3719 * This routine handles processing a READ_TOPOLOGY mailbox 3720 * command upon completion. It is setup in the LPFC_MBOXQ 3721 * as the completion routine when the command is 3722 * handed off to the SLI layer. SLI4 only. 3723 */ 3724 void 3725 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3726 { 3727 struct lpfc_vport *vport = pmb->vport; 3728 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3729 struct lpfc_mbx_read_top *la; 3730 struct lpfc_sli_ring *pring; 3731 MAILBOX_t *mb = &pmb->u.mb; 3732 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3733 uint8_t attn_type; 3734 unsigned long iflags; 3735 3736 /* Unblock ELS traffic */ 3737 pring = lpfc_phba_elsring(phba); 3738 if (pring) 3739 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3740 3741 /* Check for error */ 3742 if (mb->mbxStatus) { 3743 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3744 "1307 READ_LA mbox error x%x state x%x\n", 3745 mb->mbxStatus, vport->port_state); 3746 lpfc_mbx_issue_link_down(phba); 3747 phba->link_state = LPFC_HBA_ERROR; 3748 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3749 } 3750 3751 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3752 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3753 3754 memcpy(&phba->alpa_map[0], mp->virt, 128); 3755 3756 spin_lock_irqsave(shost->host_lock, iflags); 3757 if (bf_get(lpfc_mbx_read_top_pb, la)) 3758 vport->fc_flag |= FC_BYPASSED_MODE; 3759 else 3760 vport->fc_flag &= ~FC_BYPASSED_MODE; 3761 spin_unlock_irqrestore(shost->host_lock, iflags); 3762 3763 if (phba->fc_eventTag <= la->eventTag) { 3764 phba->fc_stat.LinkMultiEvent++; 3765 if (attn_type == LPFC_ATT_LINK_UP) 3766 if (phba->fc_eventTag != 0) 3767 lpfc_linkdown(phba); 3768 } 3769 3770 phba->fc_eventTag = la->eventTag; 3771 phba->link_events++; 3772 if (attn_type == LPFC_ATT_LINK_UP) { 3773 phba->fc_stat.LinkUp++; 3774 if (phba->link_flag & LS_LOOPBACK_MODE) { 3775 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3776 "1306 Link Up Event in loop back mode " 3777 "x%x received Data: x%x x%x x%x x%x\n", 3778 la->eventTag, phba->fc_eventTag, 3779 bf_get(lpfc_mbx_read_top_alpa_granted, 3780 la), 3781 bf_get(lpfc_mbx_read_top_link_spd, la), 3782 phba->alpa_map[0]); 3783 } else { 3784 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3785 "1303 Link Up Event x%x received " 3786 "Data: x%x x%x x%x x%x x%x\n", 3787 la->eventTag, phba->fc_eventTag, 3788 bf_get(lpfc_mbx_read_top_alpa_granted, 3789 la), 3790 bf_get(lpfc_mbx_read_top_link_spd, la), 3791 phba->alpa_map[0], 3792 bf_get(lpfc_mbx_read_top_fa, la)); 3793 } 3794 lpfc_mbx_process_link_up(phba, la); 3795 3796 if (phba->cmf_active_mode != LPFC_CFG_OFF) 3797 lpfc_cmf_signal_init(phba); 3798 3799 if (phba->lmt & LMT_64Gb) 3800 lpfc_read_lds_params(phba); 3801 3802 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3803 attn_type == LPFC_ATT_UNEXP_WWPN) { 3804 phba->fc_stat.LinkDown++; 3805 if (phba->link_flag & LS_LOOPBACK_MODE) 3806 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3807 "1308 Link Down Event in loop back mode " 3808 "x%x received " 3809 "Data: x%x x%x x%x\n", 3810 la->eventTag, phba->fc_eventTag, 3811 phba->pport->port_state, vport->fc_flag); 3812 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3813 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3814 "1313 Link Down Unexpected FA WWPN Event x%x " 3815 "received Data: x%x x%x x%x x%x\n", 3816 la->eventTag, phba->fc_eventTag, 3817 phba->pport->port_state, vport->fc_flag, 3818 bf_get(lpfc_mbx_read_top_fa, la)); 3819 else 3820 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3821 "1305 Link Down Event x%x received " 3822 "Data: x%x x%x x%x x%x\n", 3823 la->eventTag, phba->fc_eventTag, 3824 phba->pport->port_state, vport->fc_flag, 3825 bf_get(lpfc_mbx_read_top_fa, la)); 3826 lpfc_mbx_issue_link_down(phba); 3827 } 3828 3829 if ((phba->sli_rev < LPFC_SLI_REV4) && 3830 bf_get(lpfc_mbx_read_top_fa, la)) 3831 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3832 "1311 fa %d\n", 3833 bf_get(lpfc_mbx_read_top_fa, la)); 3834 3835 lpfc_mbx_cmpl_read_topology_free_mbuf: 3836 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3837 } 3838 3839 /* 3840 * This routine handles processing a REG_LOGIN mailbox 3841 * command upon completion. It is setup in the LPFC_MBOXQ 3842 * as the completion routine when the command is 3843 * handed off to the SLI layer. 3844 */ 3845 void 3846 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3847 { 3848 struct lpfc_vport *vport = pmb->vport; 3849 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3850 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3851 3852 /* The driver calls the state machine with the pmb pointer 3853 * but wants to make sure a stale ctx_buf isn't acted on. 3854 * The ctx_buf is restored later and cleaned up. 3855 */ 3856 pmb->ctx_buf = NULL; 3857 pmb->ctx_ndlp = NULL; 3858 3859 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY, 3860 "0002 rpi:%x DID:%x flg:%x %d x%px\n", 3861 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3862 kref_read(&ndlp->kref), 3863 ndlp); 3864 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3865 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3866 3867 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3868 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3869 /* We rcvd a rscn after issuing this 3870 * mbox reg login, we may have cycled 3871 * back through the state and be 3872 * back at reg login state so this 3873 * mbox needs to be ignored becase 3874 * there is another reg login in 3875 * process. 3876 */ 3877 spin_lock_irq(&ndlp->lock); 3878 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3879 spin_unlock_irq(&ndlp->lock); 3880 3881 /* 3882 * We cannot leave the RPI registered because 3883 * if we go thru discovery again for this ndlp 3884 * a subsequent REG_RPI will fail. 3885 */ 3886 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3887 lpfc_unreg_rpi(vport, ndlp); 3888 } 3889 3890 /* Call state machine */ 3891 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3892 pmb->ctx_buf = mp; 3893 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 3894 3895 /* decrement the node reference count held for this callback 3896 * function. 3897 */ 3898 lpfc_nlp_put(ndlp); 3899 3900 return; 3901 } 3902 3903 static void 3904 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3905 { 3906 MAILBOX_t *mb = &pmb->u.mb; 3907 struct lpfc_vport *vport = pmb->vport; 3908 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3909 3910 switch (mb->mbxStatus) { 3911 case 0x0011: 3912 case 0x0020: 3913 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3914 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3915 mb->mbxStatus); 3916 break; 3917 /* If VPI is busy, reset the HBA */ 3918 case 0x9700: 3919 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3920 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3921 vport->vpi, mb->mbxStatus); 3922 if (!(phba->pport->load_flag & FC_UNLOADING)) 3923 lpfc_workq_post_event(phba, NULL, NULL, 3924 LPFC_EVT_RESET_HBA); 3925 } 3926 spin_lock_irq(shost->host_lock); 3927 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3928 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3929 spin_unlock_irq(shost->host_lock); 3930 mempool_free(pmb, phba->mbox_mem_pool); 3931 lpfc_cleanup_vports_rrqs(vport, NULL); 3932 /* 3933 * This shost reference might have been taken at the beginning of 3934 * lpfc_vport_delete() 3935 */ 3936 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3937 scsi_host_put(shost); 3938 } 3939 3940 int 3941 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3942 { 3943 struct lpfc_hba *phba = vport->phba; 3944 LPFC_MBOXQ_t *mbox; 3945 int rc; 3946 3947 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3948 if (!mbox) 3949 return 1; 3950 3951 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3952 mbox->vport = vport; 3953 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3954 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3955 if (rc == MBX_NOT_FINISHED) { 3956 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3957 "1800 Could not issue unreg_vpi\n"); 3958 mempool_free(mbox, phba->mbox_mem_pool); 3959 return rc; 3960 } 3961 return 0; 3962 } 3963 3964 static void 3965 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3966 { 3967 struct lpfc_vport *vport = pmb->vport; 3968 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3969 MAILBOX_t *mb = &pmb->u.mb; 3970 3971 switch (mb->mbxStatus) { 3972 case 0x0011: 3973 case 0x9601: 3974 case 0x9602: 3975 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3976 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3977 mb->mbxStatus); 3978 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3979 spin_lock_irq(shost->host_lock); 3980 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3981 spin_unlock_irq(shost->host_lock); 3982 vport->fc_myDID = 0; 3983 3984 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3985 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3986 if (phba->nvmet_support) 3987 lpfc_nvmet_update_targetport(phba); 3988 else 3989 lpfc_nvme_update_localport(vport); 3990 } 3991 goto out; 3992 } 3993 3994 spin_lock_irq(shost->host_lock); 3995 vport->vpi_state |= LPFC_VPI_REGISTERED; 3996 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3997 spin_unlock_irq(shost->host_lock); 3998 vport->num_disc_nodes = 0; 3999 /* go thru NPR list and issue ELS PLOGIs */ 4000 if (vport->fc_npr_cnt) 4001 lpfc_els_disc_plogi(vport); 4002 4003 if (!vport->num_disc_nodes) { 4004 spin_lock_irq(shost->host_lock); 4005 vport->fc_flag &= ~FC_NDISC_ACTIVE; 4006 spin_unlock_irq(shost->host_lock); 4007 lpfc_can_disctmo(vport); 4008 } 4009 vport->port_state = LPFC_VPORT_READY; 4010 4011 out: 4012 mempool_free(pmb, phba->mbox_mem_pool); 4013 return; 4014 } 4015 4016 /** 4017 * lpfc_create_static_vport - Read HBA config region to create static vports. 4018 * @phba: pointer to lpfc hba data structure. 4019 * 4020 * This routine issue a DUMP mailbox command for config region 22 to get 4021 * the list of static vports to be created. The function create vports 4022 * based on the information returned from the HBA. 4023 **/ 4024 void 4025 lpfc_create_static_vport(struct lpfc_hba *phba) 4026 { 4027 LPFC_MBOXQ_t *pmb = NULL; 4028 MAILBOX_t *mb; 4029 struct static_vport_info *vport_info; 4030 int mbx_wait_rc = 0, i; 4031 struct fc_vport_identifiers vport_id; 4032 struct fc_vport *new_fc_vport; 4033 struct Scsi_Host *shost; 4034 struct lpfc_vport *vport; 4035 uint16_t offset = 0; 4036 uint8_t *vport_buff; 4037 struct lpfc_dmabuf *mp; 4038 uint32_t byte_count = 0; 4039 4040 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4041 if (!pmb) { 4042 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4043 "0542 lpfc_create_static_vport failed to" 4044 " allocate mailbox memory\n"); 4045 return; 4046 } 4047 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 4048 mb = &pmb->u.mb; 4049 4050 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 4051 if (!vport_info) { 4052 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4053 "0543 lpfc_create_static_vport failed to" 4054 " allocate vport_info\n"); 4055 mempool_free(pmb, phba->mbox_mem_pool); 4056 return; 4057 } 4058 4059 vport_buff = (uint8_t *) vport_info; 4060 do { 4061 /* While loop iteration forces a free dma buffer from 4062 * the previous loop because the mbox is reused and 4063 * the dump routine is a single-use construct. 4064 */ 4065 if (pmb->ctx_buf) { 4066 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 4067 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4068 kfree(mp); 4069 pmb->ctx_buf = NULL; 4070 } 4071 if (lpfc_dump_static_vport(phba, pmb, offset)) 4072 goto out; 4073 4074 pmb->vport = phba->pport; 4075 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 4076 LPFC_MBOX_TMO); 4077 4078 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 4079 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4080 "0544 lpfc_create_static_vport failed to" 4081 " issue dump mailbox command ret 0x%x " 4082 "status 0x%x\n", 4083 mbx_wait_rc, mb->mbxStatus); 4084 goto out; 4085 } 4086 4087 if (phba->sli_rev == LPFC_SLI_REV4) { 4088 byte_count = pmb->u.mqe.un.mb_words[5]; 4089 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 4090 if (byte_count > sizeof(struct static_vport_info) - 4091 offset) 4092 byte_count = sizeof(struct static_vport_info) 4093 - offset; 4094 memcpy(vport_buff + offset, mp->virt, byte_count); 4095 offset += byte_count; 4096 } else { 4097 if (mb->un.varDmp.word_cnt > 4098 sizeof(struct static_vport_info) - offset) 4099 mb->un.varDmp.word_cnt = 4100 sizeof(struct static_vport_info) 4101 - offset; 4102 byte_count = mb->un.varDmp.word_cnt; 4103 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 4104 vport_buff + offset, 4105 byte_count); 4106 4107 offset += byte_count; 4108 } 4109 4110 } while (byte_count && 4111 offset < sizeof(struct static_vport_info)); 4112 4113 4114 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 4115 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 4116 != VPORT_INFO_REV)) { 4117 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4118 "0545 lpfc_create_static_vport bad" 4119 " information header 0x%x 0x%x\n", 4120 le32_to_cpu(vport_info->signature), 4121 le32_to_cpu(vport_info->rev) & 4122 VPORT_INFO_REV_MASK); 4123 4124 goto out; 4125 } 4126 4127 shost = lpfc_shost_from_vport(phba->pport); 4128 4129 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 4130 memset(&vport_id, 0, sizeof(vport_id)); 4131 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 4132 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 4133 if (!vport_id.port_name || !vport_id.node_name) 4134 continue; 4135 4136 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 4137 vport_id.vport_type = FC_PORTTYPE_NPIV; 4138 vport_id.disable = false; 4139 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 4140 4141 if (!new_fc_vport) { 4142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4143 "0546 lpfc_create_static_vport failed to" 4144 " create vport\n"); 4145 continue; 4146 } 4147 4148 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 4149 vport->vport_flag |= STATIC_VPORT; 4150 } 4151 4152 out: 4153 kfree(vport_info); 4154 if (mbx_wait_rc != MBX_TIMEOUT) 4155 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4156 } 4157 4158 /* 4159 * This routine handles processing a Fabric REG_LOGIN mailbox 4160 * command upon completion. It is setup in the LPFC_MBOXQ 4161 * as the completion routine when the command is 4162 * handed off to the SLI layer. 4163 */ 4164 void 4165 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4166 { 4167 struct lpfc_vport *vport = pmb->vport; 4168 MAILBOX_t *mb = &pmb->u.mb; 4169 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4170 struct Scsi_Host *shost; 4171 4172 pmb->ctx_ndlp = NULL; 4173 4174 if (mb->mbxStatus) { 4175 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4176 "0258 Register Fabric login error: 0x%x\n", 4177 mb->mbxStatus); 4178 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4179 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4180 /* FLOGI failed, use loop map to make discovery list */ 4181 lpfc_disc_list_loopmap(vport); 4182 4183 /* Start discovery */ 4184 lpfc_disc_start(vport); 4185 /* Decrement the reference count to ndlp after the 4186 * reference to the ndlp are done. 4187 */ 4188 lpfc_nlp_put(ndlp); 4189 return; 4190 } 4191 4192 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4193 /* Decrement the reference count to ndlp after the reference 4194 * to the ndlp are done. 4195 */ 4196 lpfc_nlp_put(ndlp); 4197 return; 4198 } 4199 4200 if (phba->sli_rev < LPFC_SLI_REV4) 4201 ndlp->nlp_rpi = mb->un.varWords[0]; 4202 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4203 ndlp->nlp_type |= NLP_FABRIC; 4204 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4205 4206 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 4207 /* when physical port receive logo donot start 4208 * vport discovery */ 4209 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 4210 lpfc_start_fdiscs(phba); 4211 else { 4212 shost = lpfc_shost_from_vport(vport); 4213 spin_lock_irq(shost->host_lock); 4214 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 4215 spin_unlock_irq(shost->host_lock); 4216 } 4217 lpfc_do_scr_ns_plogi(phba, vport); 4218 } 4219 4220 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4221 4222 /* Drop the reference count from the mbox at the end after 4223 * all the current reference to the ndlp have been done. 4224 */ 4225 lpfc_nlp_put(ndlp); 4226 return; 4227 } 4228 4229 /* 4230 * This routine will issue a GID_FT for each FC4 Type supported 4231 * by the driver. ALL GID_FTs must complete before discovery is started. 4232 */ 4233 int 4234 lpfc_issue_gidft(struct lpfc_vport *vport) 4235 { 4236 /* Good status, issue CT Request to NameServer */ 4237 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4238 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 4239 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 4240 /* Cannot issue NameServer FCP Query, so finish up 4241 * discovery 4242 */ 4243 lpfc_printf_vlog(vport, KERN_ERR, 4244 LOG_TRACE_EVENT, 4245 "0604 %s FC TYPE %x %s\n", 4246 "Failed to issue GID_FT to ", 4247 FC_TYPE_FCP, 4248 "Finishing discovery."); 4249 return 0; 4250 } 4251 vport->gidft_inp++; 4252 } 4253 4254 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4255 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 4256 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 4257 /* Cannot issue NameServer NVME Query, so finish up 4258 * discovery 4259 */ 4260 lpfc_printf_vlog(vport, KERN_ERR, 4261 LOG_TRACE_EVENT, 4262 "0605 %s FC_TYPE %x %s %d\n", 4263 "Failed to issue GID_FT to ", 4264 FC_TYPE_NVME, 4265 "Finishing discovery: gidftinp ", 4266 vport->gidft_inp); 4267 if (vport->gidft_inp == 0) 4268 return 0; 4269 } else 4270 vport->gidft_inp++; 4271 } 4272 return vport->gidft_inp; 4273 } 4274 4275 /** 4276 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 4277 * @vport: The virtual port for which this call is being executed. 4278 * 4279 * This routine will issue a GID_PT to get a list of all N_Ports 4280 * 4281 * Return value : 4282 * 0 - Failure to issue a GID_PT 4283 * 1 - GID_PT issued 4284 **/ 4285 int 4286 lpfc_issue_gidpt(struct lpfc_vport *vport) 4287 { 4288 /* Good status, issue CT Request to NameServer */ 4289 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4290 /* Cannot issue NameServer FCP Query, so finish up 4291 * discovery 4292 */ 4293 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4294 "0606 %s Port TYPE %x %s\n", 4295 "Failed to issue GID_PT to ", 4296 GID_PT_N_PORT, 4297 "Finishing discovery."); 4298 return 0; 4299 } 4300 vport->gidft_inp++; 4301 return 1; 4302 } 4303 4304 /* 4305 * This routine handles processing a NameServer REG_LOGIN mailbox 4306 * command upon completion. It is setup in the LPFC_MBOXQ 4307 * as the completion routine when the command is 4308 * handed off to the SLI layer. 4309 */ 4310 void 4311 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4312 { 4313 MAILBOX_t *mb = &pmb->u.mb; 4314 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4315 struct lpfc_vport *vport = pmb->vport; 4316 int rc; 4317 4318 pmb->ctx_ndlp = NULL; 4319 vport->gidft_inp = 0; 4320 4321 if (mb->mbxStatus) { 4322 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4323 "0260 Register NameServer error: 0x%x\n", 4324 mb->mbxStatus); 4325 4326 out: 4327 /* decrement the node reference count held for this 4328 * callback function. 4329 */ 4330 lpfc_nlp_put(ndlp); 4331 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4332 4333 /* If the node is not registered with the scsi or nvme 4334 * transport, remove the fabric node. The failed reg_login 4335 * is terminal. 4336 */ 4337 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 4338 spin_lock_irq(&ndlp->lock); 4339 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 4340 spin_unlock_irq(&ndlp->lock); 4341 lpfc_nlp_not_used(ndlp); 4342 } 4343 4344 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4345 /* 4346 * RegLogin failed, use loop map to make discovery 4347 * list 4348 */ 4349 lpfc_disc_list_loopmap(vport); 4350 4351 /* Start discovery */ 4352 lpfc_disc_start(vport); 4353 return; 4354 } 4355 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4356 return; 4357 } 4358 4359 if (phba->sli_rev < LPFC_SLI_REV4) 4360 ndlp->nlp_rpi = mb->un.varWords[0]; 4361 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4362 ndlp->nlp_type |= NLP_FABRIC; 4363 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4364 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4365 "0003 rpi:%x DID:%x flg:%x %d x%px\n", 4366 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4367 kref_read(&ndlp->kref), 4368 ndlp); 4369 4370 if (vport->port_state < LPFC_VPORT_READY) { 4371 /* Link up discovery requires Fabric registration. */ 4372 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4373 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4374 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4375 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4376 4377 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4378 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4379 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4380 4381 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4382 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4383 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4384 FC_TYPE_NVME); 4385 4386 /* Issue SCR just before NameServer GID_FT Query */ 4387 lpfc_issue_els_scr(vport, 0); 4388 4389 /* Link was bounced or a Fabric LOGO occurred. Start EDC 4390 * with initial FW values provided the congestion mode is 4391 * not off. Note that signals may or may not be supported 4392 * by the adapter but FPIN is provided by default for 1 4393 * or both missing signals support. 4394 */ 4395 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 4396 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 4397 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 4398 rc = lpfc_issue_els_edc(vport, 0); 4399 lpfc_printf_log(phba, KERN_INFO, 4400 LOG_INIT | LOG_ELS | LOG_DISCOVERY, 4401 "4220 Issue EDC status x%x Data x%x\n", 4402 rc, phba->cgn_init_reg_signal); 4403 } else if (phba->lmt & LMT_64Gb) { 4404 /* may send link fault capability descriptor */ 4405 lpfc_issue_els_edc(vport, 0); 4406 } else { 4407 lpfc_issue_els_rdf(vport, 0); 4408 } 4409 } 4410 4411 vport->fc_ns_retry = 0; 4412 if (lpfc_issue_gidft(vport) == 0) 4413 goto out; 4414 4415 /* 4416 * At this point in time we may need to wait for multiple 4417 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4418 * 4419 * decrement the node reference count held for this 4420 * callback function. 4421 */ 4422 lpfc_nlp_put(ndlp); 4423 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4424 return; 4425 } 4426 4427 /* 4428 * This routine handles processing a Fabric Controller REG_LOGIN mailbox 4429 * command upon completion. It is setup in the LPFC_MBOXQ 4430 * as the completion routine when the command is handed off to the SLI layer. 4431 */ 4432 void 4433 lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4434 { 4435 struct lpfc_vport *vport = pmb->vport; 4436 MAILBOX_t *mb = &pmb->u.mb; 4437 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4438 4439 pmb->ctx_ndlp = NULL; 4440 if (mb->mbxStatus) { 4441 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4442 "0933 %s: Register FC login error: 0x%x\n", 4443 __func__, mb->mbxStatus); 4444 goto out; 4445 } 4446 4447 lpfc_check_nlp_post_devloss(vport, ndlp); 4448 4449 if (phba->sli_rev < LPFC_SLI_REV4) 4450 ndlp->nlp_rpi = mb->un.varWords[0]; 4451 4452 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4453 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n", 4454 __func__, ndlp->nlp_DID, ndlp->nlp_rpi, 4455 ndlp->nlp_state); 4456 4457 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4458 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 4459 ndlp->nlp_type |= NLP_FABRIC; 4460 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4461 4462 out: 4463 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 4464 4465 /* Drop the reference count from the mbox at the end after 4466 * all the current reference to the ndlp have been done. 4467 */ 4468 lpfc_nlp_put(ndlp); 4469 } 4470 4471 static void 4472 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4473 { 4474 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4475 struct fc_rport *rport; 4476 struct lpfc_rport_data *rdata; 4477 struct fc_rport_identifiers rport_ids; 4478 struct lpfc_hba *phba = vport->phba; 4479 unsigned long flags; 4480 4481 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4482 return; 4483 4484 /* Remote port has reappeared. Re-register w/ FC transport */ 4485 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4486 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4487 rport_ids.port_id = ndlp->nlp_DID; 4488 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4489 4490 4491 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4492 "rport add: did:x%x flg:x%x type x%x", 4493 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4494 4495 /* Don't add the remote port if unloading. */ 4496 if (vport->load_flag & FC_UNLOADING) 4497 return; 4498 4499 /* 4500 * Disassociate any older association between this ndlp and rport 4501 */ 4502 if (ndlp->rport) { 4503 rdata = ndlp->rport->dd_data; 4504 rdata->pnode = NULL; 4505 } 4506 4507 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4508 if (!rport) { 4509 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4510 "Warning: fc_remote_port_add failed\n"); 4511 return; 4512 } 4513 4514 /* Successful port add. Complete initializing node data */ 4515 rport->maxframe_size = ndlp->nlp_maxframe; 4516 rport->supported_classes = ndlp->nlp_class_sup; 4517 rdata = rport->dd_data; 4518 rdata->pnode = lpfc_nlp_get(ndlp); 4519 if (!rdata->pnode) { 4520 dev_warn(&phba->pcidev->dev, 4521 "Warning - node ref failed. Unreg rport\n"); 4522 fc_remote_port_delete(rport); 4523 ndlp->rport = NULL; 4524 return; 4525 } 4526 4527 spin_lock_irqsave(&ndlp->lock, flags); 4528 ndlp->fc4_xpt_flags |= SCSI_XPT_REGD; 4529 spin_unlock_irqrestore(&ndlp->lock, flags); 4530 4531 if (ndlp->nlp_type & NLP_FCP_TARGET) 4532 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4533 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4534 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4535 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4536 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4537 if (ndlp->nlp_type & NLP_NVME_TARGET) 4538 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4539 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4540 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4541 4542 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4543 fc_remote_port_rolechg(rport, rport_ids.roles); 4544 4545 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4546 "3183 %s rport x%px DID x%x, role x%x refcnt %d\n", 4547 __func__, rport, rport->port_id, rport->roles, 4548 kref_read(&ndlp->kref)); 4549 4550 if ((rport->scsi_target_id != -1) && 4551 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4552 ndlp->nlp_sid = rport->scsi_target_id; 4553 } 4554 4555 return; 4556 } 4557 4558 static void 4559 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4560 { 4561 struct fc_rport *rport = ndlp->rport; 4562 struct lpfc_vport *vport = ndlp->vport; 4563 4564 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4565 return; 4566 4567 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4568 "rport delete: did:x%x flg:x%x type x%x", 4569 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4570 4571 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4572 "3184 rport unregister x%06x, rport x%px " 4573 "xptflg x%x refcnt %d\n", 4574 ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags, 4575 kref_read(&ndlp->kref)); 4576 4577 fc_remote_port_delete(rport); 4578 lpfc_nlp_put(ndlp); 4579 } 4580 4581 static void 4582 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4583 { 4584 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4585 unsigned long iflags; 4586 4587 spin_lock_irqsave(shost->host_lock, iflags); 4588 switch (state) { 4589 case NLP_STE_UNUSED_NODE: 4590 vport->fc_unused_cnt += count; 4591 break; 4592 case NLP_STE_PLOGI_ISSUE: 4593 vport->fc_plogi_cnt += count; 4594 break; 4595 case NLP_STE_ADISC_ISSUE: 4596 vport->fc_adisc_cnt += count; 4597 break; 4598 case NLP_STE_REG_LOGIN_ISSUE: 4599 vport->fc_reglogin_cnt += count; 4600 break; 4601 case NLP_STE_PRLI_ISSUE: 4602 vport->fc_prli_cnt += count; 4603 break; 4604 case NLP_STE_UNMAPPED_NODE: 4605 vport->fc_unmap_cnt += count; 4606 break; 4607 case NLP_STE_MAPPED_NODE: 4608 vport->fc_map_cnt += count; 4609 break; 4610 case NLP_STE_NPR_NODE: 4611 if (vport->fc_npr_cnt == 0 && count == -1) 4612 vport->fc_npr_cnt = 0; 4613 else 4614 vport->fc_npr_cnt += count; 4615 break; 4616 } 4617 spin_unlock_irqrestore(shost->host_lock, iflags); 4618 } 4619 4620 /* Register a node with backend if not already done */ 4621 void 4622 lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4623 { 4624 unsigned long iflags; 4625 4626 lpfc_check_nlp_post_devloss(vport, ndlp); 4627 4628 spin_lock_irqsave(&ndlp->lock, iflags); 4629 if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) { 4630 /* Already registered with backend, trigger rescan */ 4631 spin_unlock_irqrestore(&ndlp->lock, iflags); 4632 4633 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD && 4634 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) { 4635 lpfc_nvme_rescan_port(vport, ndlp); 4636 } 4637 return; 4638 } 4639 4640 ndlp->fc4_xpt_flags |= NLP_XPT_REGD; 4641 spin_unlock_irqrestore(&ndlp->lock, iflags); 4642 4643 if (lpfc_valid_xpt_node(ndlp)) { 4644 vport->phba->nport_event_cnt++; 4645 /* 4646 * Tell the fc transport about the port, if we haven't 4647 * already. If we have, and it's a scsi entity, be 4648 */ 4649 lpfc_register_remote_port(vport, ndlp); 4650 } 4651 4652 /* We are done if we do not have any NVME remote node */ 4653 if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME)) 4654 return; 4655 4656 /* Notify the NVME transport of this new rport. */ 4657 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4658 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4659 if (vport->phba->nvmet_support == 0) { 4660 /* Register this rport with the transport. 4661 * Only NVME Target Rports are registered with 4662 * the transport. 4663 */ 4664 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4665 vport->phba->nport_event_cnt++; 4666 lpfc_nvme_register_port(vport, ndlp); 4667 } 4668 } else { 4669 /* Just take an NDLP ref count since the 4670 * target does not register rports. 4671 */ 4672 lpfc_nlp_get(ndlp); 4673 } 4674 } 4675 } 4676 4677 /* Unregister a node with backend if not already done */ 4678 void 4679 lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4680 { 4681 unsigned long iflags; 4682 4683 spin_lock_irqsave(&ndlp->lock, iflags); 4684 if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) { 4685 spin_unlock_irqrestore(&ndlp->lock, iflags); 4686 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4687 "0999 %s Not regd: ndlp x%px rport x%px DID " 4688 "x%x FLG x%x XPT x%x\n", 4689 __func__, ndlp, ndlp->rport, ndlp->nlp_DID, 4690 ndlp->nlp_flag, ndlp->fc4_xpt_flags); 4691 return; 4692 } 4693 4694 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; 4695 spin_unlock_irqrestore(&ndlp->lock, iflags); 4696 4697 if (ndlp->rport && 4698 ndlp->fc4_xpt_flags & SCSI_XPT_REGD) { 4699 vport->phba->nport_event_cnt++; 4700 lpfc_unregister_remote_port(ndlp); 4701 } else if (!ndlp->rport) { 4702 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4703 "1999 %s NDLP in devloss x%px DID x%x FLG x%x" 4704 " XPT x%x refcnt %d\n", 4705 __func__, ndlp, ndlp->nlp_DID, ndlp->nlp_flag, 4706 ndlp->fc4_xpt_flags, 4707 kref_read(&ndlp->kref)); 4708 } 4709 4710 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) { 4711 vport->phba->nport_event_cnt++; 4712 if (vport->phba->nvmet_support == 0) { 4713 /* Start devloss if target. */ 4714 if (ndlp->nlp_type & NLP_NVME_TARGET) 4715 lpfc_nvme_unregister_port(vport, ndlp); 4716 } else { 4717 /* NVMET has no upcall. */ 4718 lpfc_nlp_put(ndlp); 4719 } 4720 } 4721 4722 } 4723 4724 /* 4725 * Adisc state change handling 4726 */ 4727 static void 4728 lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4729 int new_state) 4730 { 4731 switch (new_state) { 4732 /* 4733 * Any state to ADISC_ISSUE 4734 * Do nothing, adisc cmpl handling will trigger state changes 4735 */ 4736 case NLP_STE_ADISC_ISSUE: 4737 break; 4738 4739 /* 4740 * ADISC_ISSUE to mapped states 4741 * Trigger a registration with backend, it will be nop if 4742 * already registered 4743 */ 4744 case NLP_STE_UNMAPPED_NODE: 4745 ndlp->nlp_type |= NLP_FC_NODE; 4746 fallthrough; 4747 case NLP_STE_MAPPED_NODE: 4748 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4749 lpfc_nlp_reg_node(vport, ndlp); 4750 break; 4751 4752 /* 4753 * ADISC_ISSUE to non-mapped states 4754 * We are moving from ADISC_ISSUE to a non-mapped state because 4755 * ADISC failed, we would have skipped unregistering with 4756 * backend, attempt it now 4757 */ 4758 case NLP_STE_NPR_NODE: 4759 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4760 fallthrough; 4761 default: 4762 lpfc_nlp_unreg_node(vport, ndlp); 4763 break; 4764 } 4765 4766 } 4767 4768 static void 4769 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4770 int old_state, int new_state) 4771 { 4772 /* Trap ADISC changes here */ 4773 if (new_state == NLP_STE_ADISC_ISSUE || 4774 old_state == NLP_STE_ADISC_ISSUE) { 4775 lpfc_handle_adisc_state(vport, ndlp, new_state); 4776 return; 4777 } 4778 4779 if (new_state == NLP_STE_UNMAPPED_NODE) { 4780 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4781 ndlp->nlp_type |= NLP_FC_NODE; 4782 } 4783 if (new_state == NLP_STE_MAPPED_NODE) 4784 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4785 if (new_state == NLP_STE_NPR_NODE) 4786 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4787 4788 /* Reg/Unreg for FCP and NVME Transport interface */ 4789 if ((old_state == NLP_STE_MAPPED_NODE || 4790 old_state == NLP_STE_UNMAPPED_NODE)) { 4791 /* For nodes marked for ADISC, Handle unreg in ADISC cmpl 4792 * if linkup. In linkdown do unreg_node 4793 */ 4794 if (!(ndlp->nlp_flag & NLP_NPR_ADISC) || 4795 !lpfc_is_link_up(vport->phba)) 4796 lpfc_nlp_unreg_node(vport, ndlp); 4797 } 4798 4799 if (new_state == NLP_STE_MAPPED_NODE || 4800 new_state == NLP_STE_UNMAPPED_NODE) 4801 lpfc_nlp_reg_node(vport, ndlp); 4802 4803 /* 4804 * If the node just added to Mapped list was an FCP target, 4805 * but the remote port registration failed or assigned a target 4806 * id outside the presentable range - move the node to the 4807 * Unmapped List. 4808 */ 4809 if ((new_state == NLP_STE_MAPPED_NODE) && 4810 (ndlp->nlp_type & NLP_FCP_TARGET) && 4811 (!ndlp->rport || 4812 ndlp->rport->scsi_target_id == -1 || 4813 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4814 spin_lock_irq(&ndlp->lock); 4815 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4816 spin_unlock_irq(&ndlp->lock); 4817 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4818 } 4819 } 4820 4821 static char * 4822 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4823 { 4824 static char *states[] = { 4825 [NLP_STE_UNUSED_NODE] = "UNUSED", 4826 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4827 [NLP_STE_ADISC_ISSUE] = "ADISC", 4828 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4829 [NLP_STE_PRLI_ISSUE] = "PRLI", 4830 [NLP_STE_LOGO_ISSUE] = "LOGO", 4831 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4832 [NLP_STE_MAPPED_NODE] = "MAPPED", 4833 [NLP_STE_NPR_NODE] = "NPR", 4834 }; 4835 4836 if (state < NLP_STE_MAX_STATE && states[state]) 4837 strlcpy(buffer, states[state], size); 4838 else 4839 snprintf(buffer, size, "unknown (%d)", state); 4840 return buffer; 4841 } 4842 4843 void 4844 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4845 int state) 4846 { 4847 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4848 int old_state = ndlp->nlp_state; 4849 int node_dropped = ndlp->nlp_flag & NLP_DROPPED; 4850 char name1[16], name2[16]; 4851 4852 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4853 "0904 NPort state transition x%06x, %s -> %s\n", 4854 ndlp->nlp_DID, 4855 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4856 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4857 4858 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4859 "node statechg did:x%x old:%d ste:%d", 4860 ndlp->nlp_DID, old_state, state); 4861 4862 if (node_dropped && old_state == NLP_STE_UNUSED_NODE && 4863 state != NLP_STE_UNUSED_NODE) { 4864 ndlp->nlp_flag &= ~NLP_DROPPED; 4865 lpfc_nlp_get(ndlp); 4866 } 4867 4868 if (old_state == NLP_STE_NPR_NODE && 4869 state != NLP_STE_NPR_NODE) 4870 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4871 if (old_state == NLP_STE_UNMAPPED_NODE) { 4872 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4873 ndlp->nlp_type &= ~NLP_FC_NODE; 4874 } 4875 4876 if (list_empty(&ndlp->nlp_listp)) { 4877 spin_lock_irq(shost->host_lock); 4878 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4879 spin_unlock_irq(shost->host_lock); 4880 } else if (old_state) 4881 lpfc_nlp_counters(vport, old_state, -1); 4882 4883 ndlp->nlp_state = state; 4884 lpfc_nlp_counters(vport, state, 1); 4885 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4886 } 4887 4888 void 4889 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4890 { 4891 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4892 4893 if (list_empty(&ndlp->nlp_listp)) { 4894 spin_lock_irq(shost->host_lock); 4895 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4896 spin_unlock_irq(shost->host_lock); 4897 } 4898 } 4899 4900 void 4901 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4902 { 4903 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4904 4905 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4906 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4907 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4908 spin_lock_irq(shost->host_lock); 4909 list_del_init(&ndlp->nlp_listp); 4910 spin_unlock_irq(shost->host_lock); 4911 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4912 NLP_STE_UNUSED_NODE); 4913 } 4914 4915 /** 4916 * lpfc_initialize_node - Initialize all fields of node object 4917 * @vport: Pointer to Virtual Port object. 4918 * @ndlp: Pointer to FC node object. 4919 * @did: FC_ID of the node. 4920 * 4921 * This function is always called when node object need to be initialized. 4922 * It initializes all the fields of the node object. Although the reference 4923 * to phba from @ndlp can be obtained indirectly through it's reference to 4924 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4925 * to the life-span of the @ndlp might go beyond the existence of @vport as 4926 * the final release of ndlp is determined by its reference count. And, the 4927 * operation on @ndlp needs the reference to phba. 4928 **/ 4929 static inline void 4930 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4931 uint32_t did) 4932 { 4933 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4934 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4935 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4936 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp); 4937 4938 ndlp->nlp_DID = did; 4939 ndlp->vport = vport; 4940 ndlp->phba = vport->phba; 4941 ndlp->nlp_sid = NLP_NO_SID; 4942 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4943 kref_init(&ndlp->kref); 4944 atomic_set(&ndlp->cmd_pending, 0); 4945 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4946 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4947 } 4948 4949 void 4950 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4951 { 4952 /* 4953 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4954 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4955 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4956 * until ALL other outstanding threads have completed. We check 4957 * that the ndlp not already in the UNUSED state before we proceed. 4958 */ 4959 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4960 return; 4961 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4962 ndlp->nlp_flag |= NLP_DROPPED; 4963 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4964 lpfc_cleanup_vports_rrqs(vport, ndlp); 4965 lpfc_unreg_rpi(vport, ndlp); 4966 } 4967 4968 lpfc_nlp_put(ndlp); 4969 return; 4970 } 4971 4972 /* 4973 * Start / ReStart rescue timer for Discovery / RSCN handling 4974 */ 4975 void 4976 lpfc_set_disctmo(struct lpfc_vport *vport) 4977 { 4978 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4979 struct lpfc_hba *phba = vport->phba; 4980 uint32_t tmo; 4981 4982 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4983 /* For FAN, timeout should be greater than edtov */ 4984 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4985 } else { 4986 /* Normal discovery timeout should be > than ELS/CT timeout 4987 * FC spec states we need 3 * ratov for CT requests 4988 */ 4989 tmo = ((phba->fc_ratov * 3) + 3); 4990 } 4991 4992 4993 if (!timer_pending(&vport->fc_disctmo)) { 4994 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4995 "set disc timer: tmo:x%x state:x%x flg:x%x", 4996 tmo, vport->port_state, vport->fc_flag); 4997 } 4998 4999 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 5000 spin_lock_irq(shost->host_lock); 5001 vport->fc_flag |= FC_DISC_TMO; 5002 spin_unlock_irq(shost->host_lock); 5003 5004 /* Start Discovery Timer state <hba_state> */ 5005 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5006 "0247 Start Discovery Timer state x%x " 5007 "Data: x%x x%lx x%x x%x\n", 5008 vport->port_state, tmo, 5009 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 5010 vport->fc_adisc_cnt); 5011 5012 return; 5013 } 5014 5015 /* 5016 * Cancel rescue timer for Discovery / RSCN handling 5017 */ 5018 int 5019 lpfc_can_disctmo(struct lpfc_vport *vport) 5020 { 5021 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5022 unsigned long iflags; 5023 5024 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5025 "can disc timer: state:x%x rtry:x%x flg:x%x", 5026 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5027 5028 /* Turn off discovery timer if its running */ 5029 if (vport->fc_flag & FC_DISC_TMO || 5030 timer_pending(&vport->fc_disctmo)) { 5031 spin_lock_irqsave(shost->host_lock, iflags); 5032 vport->fc_flag &= ~FC_DISC_TMO; 5033 spin_unlock_irqrestore(shost->host_lock, iflags); 5034 del_timer_sync(&vport->fc_disctmo); 5035 spin_lock_irqsave(&vport->work_port_lock, iflags); 5036 vport->work_port_events &= ~WORKER_DISC_TMO; 5037 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 5038 } 5039 5040 /* Cancel Discovery Timer state <hba_state> */ 5041 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5042 "0248 Cancel Discovery Timer state x%x " 5043 "Data: x%x x%x x%x\n", 5044 vport->port_state, vport->fc_flag, 5045 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 5046 return 0; 5047 } 5048 5049 /* 5050 * Check specified ring for outstanding IOCB on the SLI queue 5051 * Return true if iocb matches the specified nport 5052 */ 5053 int 5054 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 5055 struct lpfc_sli_ring *pring, 5056 struct lpfc_iocbq *iocb, 5057 struct lpfc_nodelist *ndlp) 5058 { 5059 struct lpfc_vport *vport = ndlp->vport; 5060 u8 ulp_command; 5061 u16 ulp_context; 5062 u32 remote_id; 5063 5064 if (iocb->vport != vport) 5065 return 0; 5066 5067 ulp_command = get_job_cmnd(phba, iocb); 5068 ulp_context = get_job_ulpcontext(phba, iocb); 5069 remote_id = get_job_els_rsp64_did(phba, iocb); 5070 5071 if (pring->ringno == LPFC_ELS_RING) { 5072 switch (ulp_command) { 5073 case CMD_GEN_REQUEST64_CR: 5074 if (iocb->ndlp == ndlp) 5075 return 1; 5076 fallthrough; 5077 case CMD_ELS_REQUEST64_CR: 5078 if (remote_id == ndlp->nlp_DID) 5079 return 1; 5080 fallthrough; 5081 case CMD_XMIT_ELS_RSP64_CX: 5082 if (iocb->ndlp == ndlp) 5083 return 1; 5084 } 5085 } else if (pring->ringno == LPFC_FCP_RING) { 5086 /* Skip match check if waiting to relogin to FCP target */ 5087 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 5088 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 5089 return 0; 5090 } 5091 if (ulp_context == ndlp->nlp_rpi) 5092 return 1; 5093 } 5094 return 0; 5095 } 5096 5097 static void 5098 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 5099 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 5100 struct list_head *dequeue_list) 5101 { 5102 struct lpfc_iocbq *iocb, *next_iocb; 5103 5104 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5105 /* Check to see if iocb matches the nport */ 5106 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 5107 /* match, dequeue */ 5108 list_move_tail(&iocb->list, dequeue_list); 5109 } 5110 } 5111 5112 static void 5113 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 5114 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5115 { 5116 struct lpfc_sli *psli = &phba->sli; 5117 uint32_t i; 5118 5119 spin_lock_irq(&phba->hbalock); 5120 for (i = 0; i < psli->num_rings; i++) 5121 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 5122 dequeue_list); 5123 spin_unlock_irq(&phba->hbalock); 5124 } 5125 5126 static void 5127 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 5128 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5129 { 5130 struct lpfc_sli_ring *pring; 5131 struct lpfc_queue *qp = NULL; 5132 5133 spin_lock_irq(&phba->hbalock); 5134 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 5135 pring = qp->pring; 5136 if (!pring) 5137 continue; 5138 spin_lock(&pring->ring_lock); 5139 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 5140 spin_unlock(&pring->ring_lock); 5141 } 5142 spin_unlock_irq(&phba->hbalock); 5143 } 5144 5145 /* 5146 * Free resources / clean up outstanding I/Os 5147 * associated with nlp_rpi in the LPFC_NODELIST entry. 5148 */ 5149 static int 5150 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5151 { 5152 LIST_HEAD(completions); 5153 5154 lpfc_fabric_abort_nport(ndlp); 5155 5156 /* 5157 * Everything that matches on txcmplq will be returned 5158 * by firmware with a no rpi error. 5159 */ 5160 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5161 if (phba->sli_rev != LPFC_SLI_REV4) 5162 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 5163 else 5164 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 5165 } 5166 5167 /* Cancel all the IOCBs from the completions list */ 5168 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5169 IOERR_SLI_ABORTED); 5170 5171 return 0; 5172 } 5173 5174 /** 5175 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 5176 * @phba: Pointer to HBA context object. 5177 * @pmb: Pointer to mailbox object. 5178 * 5179 * This function will issue an ELS LOGO command after completing 5180 * the UNREG_RPI. 5181 **/ 5182 static void 5183 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5184 { 5185 struct lpfc_vport *vport = pmb->vport; 5186 struct lpfc_nodelist *ndlp; 5187 5188 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 5189 if (!ndlp) 5190 return; 5191 lpfc_issue_els_logo(vport, ndlp, 0); 5192 5193 /* Check to see if there are any deferred events to process */ 5194 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 5195 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 5196 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5197 "1434 UNREG cmpl deferred logo x%x " 5198 "on NPort x%x Data: x%x x%px\n", 5199 ndlp->nlp_rpi, ndlp->nlp_DID, 5200 ndlp->nlp_defer_did, ndlp); 5201 5202 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5203 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 5204 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 5205 } else { 5206 /* NLP_RELEASE_RPI is only set for SLI4 ports. */ 5207 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 5208 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 5209 spin_lock_irq(&ndlp->lock); 5210 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5211 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5212 spin_unlock_irq(&ndlp->lock); 5213 } 5214 spin_lock_irq(&ndlp->lock); 5215 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5216 spin_unlock_irq(&ndlp->lock); 5217 } 5218 5219 /* The node has an outstanding reference for the unreg. Now 5220 * that the LOGO action and cleanup are finished, release 5221 * resources. 5222 */ 5223 lpfc_nlp_put(ndlp); 5224 mempool_free(pmb, phba->mbox_mem_pool); 5225 } 5226 5227 /* 5228 * Sets the mailbox completion handler to be used for the 5229 * unreg_rpi command. The handler varies based on the state of 5230 * the port and what will be happening to the rpi next. 5231 */ 5232 static void 5233 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 5234 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 5235 { 5236 unsigned long iflags; 5237 5238 /* Driver always gets a reference on the mailbox job 5239 * in support of async jobs. 5240 */ 5241 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5242 if (!mbox->ctx_ndlp) 5243 return; 5244 5245 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 5246 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 5247 5248 } else if (phba->sli_rev == LPFC_SLI_REV4 && 5249 (!(vport->load_flag & FC_UNLOADING)) && 5250 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 5251 LPFC_SLI_INTF_IF_TYPE_2) && 5252 (kref_read(&ndlp->kref) > 0)) { 5253 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 5254 } else { 5255 if (vport->load_flag & FC_UNLOADING) { 5256 if (phba->sli_rev == LPFC_SLI_REV4) { 5257 spin_lock_irqsave(&ndlp->lock, iflags); 5258 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5259 spin_unlock_irqrestore(&ndlp->lock, iflags); 5260 } 5261 } 5262 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5263 } 5264 } 5265 5266 /* 5267 * Free rpi associated with LPFC_NODELIST entry. 5268 * This routine is called from lpfc_freenode(), when we are removing 5269 * a LPFC_NODELIST entry. It is also called if the driver initiates a 5270 * LOGO that completes successfully, and we are waiting to PLOGI back 5271 * to the remote NPort. In addition, it is called after we receive 5272 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 5273 * we are waiting to PLOGI back to the remote NPort. 5274 */ 5275 int 5276 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5277 { 5278 struct lpfc_hba *phba = vport->phba; 5279 LPFC_MBOXQ_t *mbox; 5280 int rc, acc_plogi = 1; 5281 uint16_t rpi; 5282 5283 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 5284 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 5285 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 5286 lpfc_printf_vlog(vport, KERN_INFO, 5287 LOG_NODE | LOG_DISCOVERY, 5288 "3366 RPI x%x needs to be " 5289 "unregistered nlp_flag x%x " 5290 "did x%x\n", 5291 ndlp->nlp_rpi, ndlp->nlp_flag, 5292 ndlp->nlp_DID); 5293 5294 /* If there is already an UNREG in progress for this ndlp, 5295 * no need to queue up another one. 5296 */ 5297 if (ndlp->nlp_flag & NLP_UNREG_INP) { 5298 lpfc_printf_vlog(vport, KERN_INFO, 5299 LOG_NODE | LOG_DISCOVERY, 5300 "1436 unreg_rpi SKIP UNREG x%x on " 5301 "NPort x%x deferred x%x flg x%x " 5302 "Data: x%px\n", 5303 ndlp->nlp_rpi, ndlp->nlp_DID, 5304 ndlp->nlp_defer_did, 5305 ndlp->nlp_flag, ndlp); 5306 goto out; 5307 } 5308 5309 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5310 if (mbox) { 5311 /* SLI4 ports require the physical rpi value. */ 5312 rpi = ndlp->nlp_rpi; 5313 if (phba->sli_rev == LPFC_SLI_REV4) 5314 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 5315 5316 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 5317 mbox->vport = vport; 5318 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 5319 if (!mbox->ctx_ndlp) { 5320 mempool_free(mbox, phba->mbox_mem_pool); 5321 return 1; 5322 } 5323 5324 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 5325 /* 5326 * accept PLOGIs after unreg_rpi_cmpl 5327 */ 5328 acc_plogi = 0; 5329 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 5330 Fabric_DID_MASK) && 5331 (!(vport->fc_flag & FC_OFFLINE_MODE))) 5332 ndlp->nlp_flag |= NLP_UNREG_INP; 5333 5334 lpfc_printf_vlog(vport, KERN_INFO, 5335 LOG_NODE | LOG_DISCOVERY, 5336 "1433 unreg_rpi UNREG x%x on " 5337 "NPort x%x deferred flg x%x " 5338 "Data:x%px\n", 5339 ndlp->nlp_rpi, ndlp->nlp_DID, 5340 ndlp->nlp_flag, ndlp); 5341 5342 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5343 if (rc == MBX_NOT_FINISHED) { 5344 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5345 mempool_free(mbox, phba->mbox_mem_pool); 5346 acc_plogi = 1; 5347 lpfc_nlp_put(ndlp); 5348 } 5349 } else { 5350 lpfc_printf_vlog(vport, KERN_INFO, 5351 LOG_NODE | LOG_DISCOVERY, 5352 "1444 Failed to allocate mempool " 5353 "unreg_rpi UNREG x%x, " 5354 "DID x%x, flag x%x, " 5355 "ndlp x%px\n", 5356 ndlp->nlp_rpi, ndlp->nlp_DID, 5357 ndlp->nlp_flag, ndlp); 5358 5359 /* Because mempool_alloc failed, we 5360 * will issue a LOGO here and keep the rpi alive if 5361 * not unloading. 5362 */ 5363 if (!(vport->load_flag & FC_UNLOADING)) { 5364 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5365 lpfc_issue_els_logo(vport, ndlp, 0); 5366 ndlp->nlp_prev_state = ndlp->nlp_state; 5367 lpfc_nlp_set_state(vport, ndlp, 5368 NLP_STE_NPR_NODE); 5369 } 5370 5371 return 1; 5372 } 5373 lpfc_no_rpi(phba, ndlp); 5374 out: 5375 if (phba->sli_rev != LPFC_SLI_REV4) 5376 ndlp->nlp_rpi = 0; 5377 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 5378 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 5379 if (acc_plogi) 5380 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5381 return 1; 5382 } 5383 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5384 return 0; 5385 } 5386 5387 /** 5388 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 5389 * @phba: pointer to lpfc hba data structure. 5390 * 5391 * This routine is invoked to unregister all the currently registered RPIs 5392 * to the HBA. 5393 **/ 5394 void 5395 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5396 { 5397 struct lpfc_vport **vports; 5398 struct lpfc_nodelist *ndlp; 5399 struct Scsi_Host *shost; 5400 int i; 5401 5402 vports = lpfc_create_vport_work_array(phba); 5403 if (!vports) { 5404 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5405 "2884 Vport array allocation failed \n"); 5406 return; 5407 } 5408 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5409 shost = lpfc_shost_from_vport(vports[i]); 5410 spin_lock_irq(shost->host_lock); 5411 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5412 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5413 /* The mempool_alloc might sleep */ 5414 spin_unlock_irq(shost->host_lock); 5415 lpfc_unreg_rpi(vports[i], ndlp); 5416 spin_lock_irq(shost->host_lock); 5417 } 5418 } 5419 spin_unlock_irq(shost->host_lock); 5420 } 5421 lpfc_destroy_vport_work_array(phba, vports); 5422 } 5423 5424 void 5425 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5426 { 5427 struct lpfc_hba *phba = vport->phba; 5428 LPFC_MBOXQ_t *mbox; 5429 int rc; 5430 5431 if (phba->sli_rev == LPFC_SLI_REV4) { 5432 lpfc_sli4_unreg_all_rpis(vport); 5433 return; 5434 } 5435 5436 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5437 if (mbox) { 5438 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5439 mbox); 5440 mbox->vport = vport; 5441 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5442 mbox->ctx_ndlp = NULL; 5443 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5444 if (rc != MBX_TIMEOUT) 5445 mempool_free(mbox, phba->mbox_mem_pool); 5446 5447 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5448 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5449 "1836 Could not issue " 5450 "unreg_login(all_rpis) status %d\n", 5451 rc); 5452 } 5453 } 5454 5455 void 5456 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5457 { 5458 struct lpfc_hba *phba = vport->phba; 5459 LPFC_MBOXQ_t *mbox; 5460 int rc; 5461 5462 /* Unreg DID is an SLI3 operation. */ 5463 if (phba->sli_rev > LPFC_SLI_REV3) 5464 return; 5465 5466 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5467 if (mbox) { 5468 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5469 mbox); 5470 mbox->vport = vport; 5471 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5472 mbox->ctx_ndlp = NULL; 5473 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5474 if (rc != MBX_TIMEOUT) 5475 mempool_free(mbox, phba->mbox_mem_pool); 5476 5477 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5478 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5479 "1815 Could not issue " 5480 "unreg_did (default rpis) status %d\n", 5481 rc); 5482 } 5483 } 5484 5485 /* 5486 * Free resources associated with LPFC_NODELIST entry 5487 * so it can be freed. 5488 */ 5489 static int 5490 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5491 { 5492 struct lpfc_hba *phba = vport->phba; 5493 LPFC_MBOXQ_t *mb, *nextmb; 5494 5495 /* Cleanup node for NPort <nlp_DID> */ 5496 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5497 "0900 Cleanup node for NPort x%x " 5498 "Data: x%x x%x x%x\n", 5499 ndlp->nlp_DID, ndlp->nlp_flag, 5500 ndlp->nlp_state, ndlp->nlp_rpi); 5501 lpfc_dequeue_node(vport, ndlp); 5502 5503 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5504 5505 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5506 if ((mb = phba->sli.mbox_active)) { 5507 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5508 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5509 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5510 mb->ctx_ndlp = NULL; 5511 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5512 } 5513 } 5514 5515 spin_lock_irq(&phba->hbalock); 5516 /* Cleanup REG_LOGIN completions which are not yet processed */ 5517 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5518 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5519 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5520 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5521 continue; 5522 5523 mb->ctx_ndlp = NULL; 5524 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5525 } 5526 5527 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5528 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5529 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5530 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5531 list_del(&mb->list); 5532 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED); 5533 5534 /* Don't invoke lpfc_nlp_put. The driver is in 5535 * lpfc_nlp_release context. 5536 */ 5537 } 5538 } 5539 spin_unlock_irq(&phba->hbalock); 5540 5541 lpfc_els_abort(phba, ndlp); 5542 5543 spin_lock_irq(&ndlp->lock); 5544 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5545 spin_unlock_irq(&ndlp->lock); 5546 5547 ndlp->nlp_last_elscmd = 0; 5548 del_timer_sync(&ndlp->nlp_delayfunc); 5549 5550 list_del_init(&ndlp->els_retry_evt.evt_listp); 5551 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5552 list_del_init(&ndlp->recovery_evt.evt_listp); 5553 lpfc_cleanup_vports_rrqs(vport, ndlp); 5554 5555 if (phba->sli_rev == LPFC_SLI_REV4) 5556 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5557 5558 return 0; 5559 } 5560 5561 static int 5562 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5563 uint32_t did) 5564 { 5565 D_ID mydid, ndlpdid, matchdid; 5566 5567 if (did == Bcast_DID) 5568 return 0; 5569 5570 /* First check for Direct match */ 5571 if (ndlp->nlp_DID == did) 5572 return 1; 5573 5574 /* Next check for area/domain identically equals 0 match */ 5575 mydid.un.word = vport->fc_myDID; 5576 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5577 return 0; 5578 } 5579 5580 matchdid.un.word = did; 5581 ndlpdid.un.word = ndlp->nlp_DID; 5582 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5583 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5584 (mydid.un.b.area == matchdid.un.b.area)) { 5585 /* This code is supposed to match the ID 5586 * for a private loop device that is 5587 * connect to fl_port. But we need to 5588 * check that the port did not just go 5589 * from pt2pt to fabric or we could end 5590 * up matching ndlp->nlp_DID 000001 to 5591 * fabric DID 0x20101 5592 */ 5593 if ((ndlpdid.un.b.domain == 0) && 5594 (ndlpdid.un.b.area == 0)) { 5595 if (ndlpdid.un.b.id && 5596 vport->phba->fc_topology == 5597 LPFC_TOPOLOGY_LOOP) 5598 return 1; 5599 } 5600 return 0; 5601 } 5602 5603 matchdid.un.word = ndlp->nlp_DID; 5604 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5605 (mydid.un.b.area == ndlpdid.un.b.area)) { 5606 if ((matchdid.un.b.domain == 0) && 5607 (matchdid.un.b.area == 0)) { 5608 if (matchdid.un.b.id) 5609 return 1; 5610 } 5611 } 5612 } 5613 return 0; 5614 } 5615 5616 /* Search for a nodelist entry */ 5617 static struct lpfc_nodelist * 5618 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5619 { 5620 struct lpfc_nodelist *ndlp; 5621 uint32_t data1; 5622 5623 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5624 if (lpfc_matchdid(vport, ndlp, did)) { 5625 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5626 ((uint32_t)ndlp->nlp_xri << 16) | 5627 ((uint32_t)ndlp->nlp_type << 8) 5628 ); 5629 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5630 "0929 FIND node DID " 5631 "Data: x%px x%x x%x x%x x%x x%px\n", 5632 ndlp, ndlp->nlp_DID, 5633 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5634 ndlp->active_rrqs_xri_bitmap); 5635 return ndlp; 5636 } 5637 } 5638 5639 /* FIND node did <did> NOT FOUND */ 5640 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5641 "0932 FIND node did x%x NOT FOUND.\n", did); 5642 return NULL; 5643 } 5644 5645 struct lpfc_nodelist * 5646 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5647 { 5648 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5649 struct lpfc_nodelist *ndlp; 5650 unsigned long iflags; 5651 5652 spin_lock_irqsave(shost->host_lock, iflags); 5653 ndlp = __lpfc_findnode_did(vport, did); 5654 spin_unlock_irqrestore(shost->host_lock, iflags); 5655 return ndlp; 5656 } 5657 5658 struct lpfc_nodelist * 5659 lpfc_findnode_mapped(struct lpfc_vport *vport) 5660 { 5661 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5662 struct lpfc_nodelist *ndlp; 5663 uint32_t data1; 5664 unsigned long iflags; 5665 5666 spin_lock_irqsave(shost->host_lock, iflags); 5667 5668 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5669 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5670 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5671 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5672 ((uint32_t)ndlp->nlp_xri << 16) | 5673 ((uint32_t)ndlp->nlp_type << 8) | 5674 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5675 spin_unlock_irqrestore(shost->host_lock, iflags); 5676 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5677 "2025 FIND node DID " 5678 "Data: x%px x%x x%x x%x x%px\n", 5679 ndlp, ndlp->nlp_DID, 5680 ndlp->nlp_flag, data1, 5681 ndlp->active_rrqs_xri_bitmap); 5682 return ndlp; 5683 } 5684 } 5685 spin_unlock_irqrestore(shost->host_lock, iflags); 5686 5687 /* FIND node did <did> NOT FOUND */ 5688 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5689 "2026 FIND mapped did NOT FOUND.\n"); 5690 return NULL; 5691 } 5692 5693 struct lpfc_nodelist * 5694 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5695 { 5696 struct lpfc_nodelist *ndlp; 5697 5698 ndlp = lpfc_findnode_did(vport, did); 5699 if (!ndlp) { 5700 if (vport->phba->nvmet_support) 5701 return NULL; 5702 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5703 lpfc_rscn_payload_check(vport, did) == 0) 5704 return NULL; 5705 ndlp = lpfc_nlp_init(vport, did); 5706 if (!ndlp) 5707 return NULL; 5708 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5709 5710 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5711 "6453 Setup New Node 2B_DISC x%x " 5712 "Data:x%x x%x x%x\n", 5713 ndlp->nlp_DID, ndlp->nlp_flag, 5714 ndlp->nlp_state, vport->fc_flag); 5715 5716 spin_lock_irq(&ndlp->lock); 5717 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5718 spin_unlock_irq(&ndlp->lock); 5719 return ndlp; 5720 } 5721 5722 /* The NVME Target does not want to actively manage an rport. 5723 * The goal is to allow the target to reset its state and clear 5724 * pending IO in preparation for the initiator to recover. 5725 */ 5726 if ((vport->fc_flag & FC_RSCN_MODE) && 5727 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5728 if (lpfc_rscn_payload_check(vport, did)) { 5729 5730 /* Since this node is marked for discovery, 5731 * delay timeout is not needed. 5732 */ 5733 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5734 5735 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5736 "6455 Setup RSCN Node 2B_DISC x%x " 5737 "Data:x%x x%x x%x\n", 5738 ndlp->nlp_DID, ndlp->nlp_flag, 5739 ndlp->nlp_state, vport->fc_flag); 5740 5741 /* NVME Target mode waits until rport is known to be 5742 * impacted by the RSCN before it transitions. No 5743 * active management - just go to NPR provided the 5744 * node had a valid login. 5745 */ 5746 if (vport->phba->nvmet_support) 5747 return ndlp; 5748 5749 /* If we've already received a PLOGI from this NPort 5750 * we don't need to try to discover it again. 5751 */ 5752 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5753 !(ndlp->nlp_type & 5754 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5755 return NULL; 5756 5757 ndlp->nlp_prev_state = ndlp->nlp_state; 5758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5759 5760 spin_lock_irq(&ndlp->lock); 5761 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5762 spin_unlock_irq(&ndlp->lock); 5763 } else { 5764 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5765 "6456 Skip Setup RSCN Node x%x " 5766 "Data:x%x x%x x%x\n", 5767 ndlp->nlp_DID, ndlp->nlp_flag, 5768 ndlp->nlp_state, vport->fc_flag); 5769 ndlp = NULL; 5770 } 5771 } else { 5772 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5773 "6457 Setup Active Node 2B_DISC x%x " 5774 "Data:x%x x%x x%x\n", 5775 ndlp->nlp_DID, ndlp->nlp_flag, 5776 ndlp->nlp_state, vport->fc_flag); 5777 5778 /* If the initiator received a PLOGI from this NPort or if the 5779 * initiator is already in the process of discovery on it, 5780 * there's no need to try to discover it again. 5781 */ 5782 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5783 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5784 (!vport->phba->nvmet_support && 5785 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5786 return NULL; 5787 5788 if (vport->phba->nvmet_support) 5789 return ndlp; 5790 5791 /* Moving to NPR state clears unsolicited flags and 5792 * allows for rediscovery 5793 */ 5794 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5795 5796 spin_lock_irq(&ndlp->lock); 5797 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5798 spin_unlock_irq(&ndlp->lock); 5799 } 5800 return ndlp; 5801 } 5802 5803 /* Build a list of nodes to discover based on the loopmap */ 5804 void 5805 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5806 { 5807 struct lpfc_hba *phba = vport->phba; 5808 int j; 5809 uint32_t alpa, index; 5810 5811 if (!lpfc_is_link_up(phba)) 5812 return; 5813 5814 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5815 return; 5816 5817 /* Check for loop map present or not */ 5818 if (phba->alpa_map[0]) { 5819 for (j = 1; j <= phba->alpa_map[0]; j++) { 5820 alpa = phba->alpa_map[j]; 5821 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5822 continue; 5823 lpfc_setup_disc_node(vport, alpa); 5824 } 5825 } else { 5826 /* No alpamap, so try all alpa's */ 5827 for (j = 0; j < FC_MAXLOOP; j++) { 5828 /* If cfg_scan_down is set, start from highest 5829 * ALPA (0xef) to lowest (0x1). 5830 */ 5831 if (vport->cfg_scan_down) 5832 index = j; 5833 else 5834 index = FC_MAXLOOP - j - 1; 5835 alpa = lpfcAlpaArray[index]; 5836 if ((vport->fc_myDID & 0xff) == alpa) 5837 continue; 5838 lpfc_setup_disc_node(vport, alpa); 5839 } 5840 } 5841 return; 5842 } 5843 5844 /* SLI3 only */ 5845 void 5846 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5847 { 5848 LPFC_MBOXQ_t *mbox; 5849 struct lpfc_sli *psli = &phba->sli; 5850 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5851 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5852 int rc; 5853 5854 /* 5855 * if it's not a physical port or if we already send 5856 * clear_la then don't send it. 5857 */ 5858 if ((phba->link_state >= LPFC_CLEAR_LA) || 5859 (vport->port_type != LPFC_PHYSICAL_PORT) || 5860 (phba->sli_rev == LPFC_SLI_REV4)) 5861 return; 5862 5863 /* Link up discovery */ 5864 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5865 phba->link_state = LPFC_CLEAR_LA; 5866 lpfc_clear_la(phba, mbox); 5867 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5868 mbox->vport = vport; 5869 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5870 if (rc == MBX_NOT_FINISHED) { 5871 mempool_free(mbox, phba->mbox_mem_pool); 5872 lpfc_disc_flush_list(vport); 5873 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5874 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5875 phba->link_state = LPFC_HBA_ERROR; 5876 } 5877 } 5878 } 5879 5880 /* Reg_vpi to tell firmware to resume normal operations */ 5881 void 5882 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5883 { 5884 LPFC_MBOXQ_t *regvpimbox; 5885 5886 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5887 if (regvpimbox) { 5888 lpfc_reg_vpi(vport, regvpimbox); 5889 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5890 regvpimbox->vport = vport; 5891 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5892 == MBX_NOT_FINISHED) { 5893 mempool_free(regvpimbox, phba->mbox_mem_pool); 5894 } 5895 } 5896 } 5897 5898 /* Start Link up / RSCN discovery on NPR nodes */ 5899 void 5900 lpfc_disc_start(struct lpfc_vport *vport) 5901 { 5902 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5903 struct lpfc_hba *phba = vport->phba; 5904 uint32_t num_sent; 5905 uint32_t clear_la_pending; 5906 5907 if (!lpfc_is_link_up(phba)) { 5908 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5909 "3315 Link is not up %x\n", 5910 phba->link_state); 5911 return; 5912 } 5913 5914 if (phba->link_state == LPFC_CLEAR_LA) 5915 clear_la_pending = 1; 5916 else 5917 clear_la_pending = 0; 5918 5919 if (vport->port_state < LPFC_VPORT_READY) 5920 vport->port_state = LPFC_DISC_AUTH; 5921 5922 lpfc_set_disctmo(vport); 5923 5924 vport->fc_prevDID = vport->fc_myDID; 5925 vport->num_disc_nodes = 0; 5926 5927 /* Start Discovery state <hba_state> */ 5928 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5929 "0202 Start Discovery port state x%x " 5930 "flg x%x Data: x%x x%x x%x\n", 5931 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5932 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5933 5934 /* First do ADISCs - if any */ 5935 num_sent = lpfc_els_disc_adisc(vport); 5936 5937 if (num_sent) 5938 return; 5939 5940 /* Register the VPI for SLI3, NPIV only. */ 5941 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5942 !(vport->fc_flag & FC_PT2PT) && 5943 !(vport->fc_flag & FC_RSCN_MODE) && 5944 (phba->sli_rev < LPFC_SLI_REV4)) { 5945 lpfc_issue_clear_la(phba, vport); 5946 lpfc_issue_reg_vpi(phba, vport); 5947 return; 5948 } 5949 5950 /* 5951 * For SLI2, we need to set port_state to READY and continue 5952 * discovery. 5953 */ 5954 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5955 /* If we get here, there is nothing to ADISC */ 5956 lpfc_issue_clear_la(phba, vport); 5957 5958 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5959 vport->num_disc_nodes = 0; 5960 /* go thru NPR nodes and issue ELS PLOGIs */ 5961 if (vport->fc_npr_cnt) 5962 lpfc_els_disc_plogi(vport); 5963 5964 if (!vport->num_disc_nodes) { 5965 spin_lock_irq(shost->host_lock); 5966 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5967 spin_unlock_irq(shost->host_lock); 5968 lpfc_can_disctmo(vport); 5969 } 5970 } 5971 vport->port_state = LPFC_VPORT_READY; 5972 } else { 5973 /* Next do PLOGIs - if any */ 5974 num_sent = lpfc_els_disc_plogi(vport); 5975 5976 if (num_sent) 5977 return; 5978 5979 if (vport->fc_flag & FC_RSCN_MODE) { 5980 /* Check to see if more RSCNs came in while we 5981 * were processing this one. 5982 */ 5983 if ((vport->fc_rscn_id_cnt == 0) && 5984 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5985 spin_lock_irq(shost->host_lock); 5986 vport->fc_flag &= ~FC_RSCN_MODE; 5987 spin_unlock_irq(shost->host_lock); 5988 lpfc_can_disctmo(vport); 5989 } else 5990 lpfc_els_handle_rscn(vport); 5991 } 5992 } 5993 return; 5994 } 5995 5996 /* 5997 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5998 * ring the match the sppecified nodelist. 5999 */ 6000 static void 6001 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 6002 { 6003 LIST_HEAD(completions); 6004 struct lpfc_iocbq *iocb, *next_iocb; 6005 struct lpfc_sli_ring *pring; 6006 u32 ulp_command; 6007 6008 pring = lpfc_phba_elsring(phba); 6009 if (unlikely(!pring)) 6010 return; 6011 6012 /* Error matching iocb on txq or txcmplq 6013 * First check the txq. 6014 */ 6015 spin_lock_irq(&phba->hbalock); 6016 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 6017 if (iocb->ndlp != ndlp) 6018 continue; 6019 6020 ulp_command = get_job_cmnd(phba, iocb); 6021 6022 if (ulp_command == CMD_ELS_REQUEST64_CR || 6023 ulp_command == CMD_XMIT_ELS_RSP64_CX) { 6024 6025 list_move_tail(&iocb->list, &completions); 6026 } 6027 } 6028 6029 /* Next check the txcmplq */ 6030 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 6031 if (iocb->ndlp != ndlp) 6032 continue; 6033 6034 ulp_command = get_job_cmnd(phba, iocb); 6035 6036 if (ulp_command == CMD_ELS_REQUEST64_CR || 6037 ulp_command == CMD_XMIT_ELS_RSP64_CX) { 6038 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 6039 } 6040 } 6041 spin_unlock_irq(&phba->hbalock); 6042 6043 /* Make sure HBA is alive */ 6044 lpfc_issue_hb_tmo(phba); 6045 6046 /* Cancel all the IOCBs from the completions list */ 6047 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 6048 IOERR_SLI_ABORTED); 6049 } 6050 6051 static void 6052 lpfc_disc_flush_list(struct lpfc_vport *vport) 6053 { 6054 struct lpfc_nodelist *ndlp, *next_ndlp; 6055 struct lpfc_hba *phba = vport->phba; 6056 6057 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 6058 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6059 nlp_listp) { 6060 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 6061 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 6062 lpfc_free_tx(phba, ndlp); 6063 } 6064 } 6065 } 6066 } 6067 6068 /* 6069 * lpfc_notify_xport_npr - notifies xport of node disappearance 6070 * @vport: Pointer to Virtual Port object. 6071 * 6072 * Transitions all ndlps to NPR state. When lpfc_nlp_set_state 6073 * calls lpfc_nlp_state_cleanup, the ndlp->rport is unregistered 6074 * and transport notified that the node is gone. 6075 * Return Code: 6076 * none 6077 */ 6078 static void 6079 lpfc_notify_xport_npr(struct lpfc_vport *vport) 6080 { 6081 struct lpfc_nodelist *ndlp, *next_ndlp; 6082 6083 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6084 nlp_listp) { 6085 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 6086 } 6087 } 6088 void 6089 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 6090 { 6091 lpfc_els_flush_rscn(vport); 6092 lpfc_els_flush_cmd(vport); 6093 lpfc_disc_flush_list(vport); 6094 if (pci_channel_offline(vport->phba->pcidev)) 6095 lpfc_notify_xport_npr(vport); 6096 } 6097 6098 /*****************************************************************************/ 6099 /* 6100 * NAME: lpfc_disc_timeout 6101 * 6102 * FUNCTION: Fibre Channel driver discovery timeout routine. 6103 * 6104 * EXECUTION ENVIRONMENT: interrupt only 6105 * 6106 * CALLED FROM: 6107 * Timer function 6108 * 6109 * RETURNS: 6110 * none 6111 */ 6112 /*****************************************************************************/ 6113 void 6114 lpfc_disc_timeout(struct timer_list *t) 6115 { 6116 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 6117 struct lpfc_hba *phba = vport->phba; 6118 uint32_t tmo_posted; 6119 unsigned long flags = 0; 6120 6121 if (unlikely(!phba)) 6122 return; 6123 6124 spin_lock_irqsave(&vport->work_port_lock, flags); 6125 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 6126 if (!tmo_posted) 6127 vport->work_port_events |= WORKER_DISC_TMO; 6128 spin_unlock_irqrestore(&vport->work_port_lock, flags); 6129 6130 if (!tmo_posted) 6131 lpfc_worker_wake_up(phba); 6132 return; 6133 } 6134 6135 static void 6136 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 6137 { 6138 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6139 struct lpfc_hba *phba = vport->phba; 6140 struct lpfc_sli *psli = &phba->sli; 6141 struct lpfc_nodelist *ndlp, *next_ndlp; 6142 LPFC_MBOXQ_t *initlinkmbox; 6143 int rc, clrlaerr = 0; 6144 6145 if (!(vport->fc_flag & FC_DISC_TMO)) 6146 return; 6147 6148 spin_lock_irq(shost->host_lock); 6149 vport->fc_flag &= ~FC_DISC_TMO; 6150 spin_unlock_irq(shost->host_lock); 6151 6152 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 6153 "disc timeout: state:x%x rtry:x%x flg:x%x", 6154 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 6155 6156 switch (vport->port_state) { 6157 6158 case LPFC_LOCAL_CFG_LINK: 6159 /* 6160 * port_state is identically LPFC_LOCAL_CFG_LINK while 6161 * waiting for FAN timeout 6162 */ 6163 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 6164 "0221 FAN timeout\n"); 6165 6166 /* Start discovery by sending FLOGI, clean up old rpis */ 6167 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6168 nlp_listp) { 6169 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 6170 continue; 6171 if (ndlp->nlp_type & NLP_FABRIC) { 6172 /* Clean up the ndlp on Fabric connections */ 6173 lpfc_drop_node(vport, ndlp); 6174 6175 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 6176 /* Fail outstanding IO now since device 6177 * is marked for PLOGI. 6178 */ 6179 lpfc_unreg_rpi(vport, ndlp); 6180 } 6181 } 6182 if (vport->port_state != LPFC_FLOGI) { 6183 if (phba->sli_rev <= LPFC_SLI_REV3) 6184 lpfc_initial_flogi(vport); 6185 else 6186 lpfc_issue_init_vfi(vport); 6187 return; 6188 } 6189 break; 6190 6191 case LPFC_FDISC: 6192 case LPFC_FLOGI: 6193 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 6194 /* Initial FLOGI timeout */ 6195 lpfc_printf_vlog(vport, KERN_ERR, 6196 LOG_TRACE_EVENT, 6197 "0222 Initial %s timeout\n", 6198 vport->vpi ? "FDISC" : "FLOGI"); 6199 6200 /* Assume no Fabric and go on with discovery. 6201 * Check for outstanding ELS FLOGI to abort. 6202 */ 6203 6204 /* FLOGI failed, so just use loop map to make discovery list */ 6205 lpfc_disc_list_loopmap(vport); 6206 6207 /* Start discovery */ 6208 lpfc_disc_start(vport); 6209 break; 6210 6211 case LPFC_FABRIC_CFG_LINK: 6212 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 6213 NameServer login */ 6214 lpfc_printf_vlog(vport, KERN_ERR, 6215 LOG_TRACE_EVENT, 6216 "0223 Timeout while waiting for " 6217 "NameServer login\n"); 6218 /* Next look for NameServer ndlp */ 6219 ndlp = lpfc_findnode_did(vport, NameServer_DID); 6220 if (ndlp) 6221 lpfc_els_abort(phba, ndlp); 6222 6223 /* ReStart discovery */ 6224 goto restart_disc; 6225 6226 case LPFC_NS_QRY: 6227 /* Check for wait for NameServer Rsp timeout */ 6228 lpfc_printf_vlog(vport, KERN_ERR, 6229 LOG_TRACE_EVENT, 6230 "0224 NameServer Query timeout " 6231 "Data: x%x x%x\n", 6232 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6233 6234 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 6235 /* Try it one more time */ 6236 vport->fc_ns_retry++; 6237 vport->gidft_inp = 0; 6238 rc = lpfc_issue_gidft(vport); 6239 if (rc == 0) 6240 break; 6241 } 6242 vport->fc_ns_retry = 0; 6243 6244 restart_disc: 6245 /* 6246 * Discovery is over. 6247 * set port_state to PORT_READY if SLI2. 6248 * cmpl_reg_vpi will set port_state to READY for SLI3. 6249 */ 6250 if (phba->sli_rev < LPFC_SLI_REV4) { 6251 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6252 lpfc_issue_reg_vpi(phba, vport); 6253 else { 6254 lpfc_issue_clear_la(phba, vport); 6255 vport->port_state = LPFC_VPORT_READY; 6256 } 6257 } 6258 6259 /* Setup and issue mailbox INITIALIZE LINK command */ 6260 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6261 if (!initlinkmbox) { 6262 lpfc_printf_vlog(vport, KERN_ERR, 6263 LOG_TRACE_EVENT, 6264 "0206 Device Discovery " 6265 "completion error\n"); 6266 phba->link_state = LPFC_HBA_ERROR; 6267 break; 6268 } 6269 6270 lpfc_linkdown(phba); 6271 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 6272 phba->cfg_link_speed); 6273 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 6274 initlinkmbox->vport = vport; 6275 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 6276 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 6277 lpfc_set_loopback_flag(phba); 6278 if (rc == MBX_NOT_FINISHED) 6279 mempool_free(initlinkmbox, phba->mbox_mem_pool); 6280 6281 break; 6282 6283 case LPFC_DISC_AUTH: 6284 /* Node Authentication timeout */ 6285 lpfc_printf_vlog(vport, KERN_ERR, 6286 LOG_TRACE_EVENT, 6287 "0227 Node Authentication timeout\n"); 6288 lpfc_disc_flush_list(vport); 6289 6290 /* 6291 * set port_state to PORT_READY if SLI2. 6292 * cmpl_reg_vpi will set port_state to READY for SLI3. 6293 */ 6294 if (phba->sli_rev < LPFC_SLI_REV4) { 6295 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6296 lpfc_issue_reg_vpi(phba, vport); 6297 else { /* NPIV Not enabled */ 6298 lpfc_issue_clear_la(phba, vport); 6299 vport->port_state = LPFC_VPORT_READY; 6300 } 6301 } 6302 break; 6303 6304 case LPFC_VPORT_READY: 6305 if (vport->fc_flag & FC_RSCN_MODE) { 6306 lpfc_printf_vlog(vport, KERN_ERR, 6307 LOG_TRACE_EVENT, 6308 "0231 RSCN timeout Data: x%x " 6309 "x%x x%x x%x\n", 6310 vport->fc_ns_retry, LPFC_MAX_NS_RETRY, 6311 vport->port_state, vport->gidft_inp); 6312 6313 /* Cleanup any outstanding ELS commands */ 6314 lpfc_els_flush_cmd(vport); 6315 6316 lpfc_els_flush_rscn(vport); 6317 lpfc_disc_flush_list(vport); 6318 } 6319 break; 6320 6321 default: 6322 lpfc_printf_vlog(vport, KERN_ERR, 6323 LOG_TRACE_EVENT, 6324 "0273 Unexpected discovery timeout, " 6325 "vport State x%x\n", vport->port_state); 6326 break; 6327 } 6328 6329 switch (phba->link_state) { 6330 case LPFC_CLEAR_LA: 6331 /* CLEAR LA timeout */ 6332 lpfc_printf_vlog(vport, KERN_ERR, 6333 LOG_TRACE_EVENT, 6334 "0228 CLEAR LA timeout\n"); 6335 clrlaerr = 1; 6336 break; 6337 6338 case LPFC_LINK_UP: 6339 lpfc_issue_clear_la(phba, vport); 6340 fallthrough; 6341 case LPFC_LINK_UNKNOWN: 6342 case LPFC_WARM_START: 6343 case LPFC_INIT_START: 6344 case LPFC_INIT_MBX_CMDS: 6345 case LPFC_LINK_DOWN: 6346 case LPFC_HBA_ERROR: 6347 lpfc_printf_vlog(vport, KERN_ERR, 6348 LOG_TRACE_EVENT, 6349 "0230 Unexpected timeout, hba link " 6350 "state x%x\n", phba->link_state); 6351 clrlaerr = 1; 6352 break; 6353 6354 case LPFC_HBA_READY: 6355 break; 6356 } 6357 6358 if (clrlaerr) { 6359 lpfc_disc_flush_list(vport); 6360 if (phba->sli_rev != LPFC_SLI_REV4) { 6361 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6362 ~LPFC_STOP_IOCB_EVENT; 6363 psli->sli3_ring[LPFC_FCP_RING].flag &= 6364 ~LPFC_STOP_IOCB_EVENT; 6365 } 6366 vport->port_state = LPFC_VPORT_READY; 6367 } 6368 return; 6369 } 6370 6371 /* 6372 * This routine handles processing a NameServer REG_LOGIN mailbox 6373 * command upon completion. It is setup in the LPFC_MBOXQ 6374 * as the completion routine when the command is 6375 * handed off to the SLI layer. 6376 */ 6377 void 6378 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6379 { 6380 MAILBOX_t *mb = &pmb->u.mb; 6381 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6382 struct lpfc_vport *vport = pmb->vport; 6383 6384 pmb->ctx_ndlp = NULL; 6385 6386 if (phba->sli_rev < LPFC_SLI_REV4) 6387 ndlp->nlp_rpi = mb->un.varWords[0]; 6388 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6389 ndlp->nlp_type |= NLP_FABRIC; 6390 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6391 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6392 "0004 rpi:%x DID:%x flg:%x %d x%px\n", 6393 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6394 kref_read(&ndlp->kref), 6395 ndlp); 6396 /* 6397 * Start issuing Fabric-Device Management Interface (FDMI) command to 6398 * 0xfffffa (FDMI well known port). 6399 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6400 * DPRT -> RPRT (vports) 6401 */ 6402 if (vport->port_type == LPFC_PHYSICAL_PORT) { 6403 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */ 6404 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6405 } else { 6406 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6407 } 6408 6409 6410 /* decrement the node reference count held for this callback 6411 * function. 6412 */ 6413 lpfc_nlp_put(ndlp); 6414 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); 6415 return; 6416 } 6417 6418 static int 6419 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6420 { 6421 uint16_t *rpi = param; 6422 6423 return ndlp->nlp_rpi == *rpi; 6424 } 6425 6426 static int 6427 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6428 { 6429 return memcmp(&ndlp->nlp_portname, param, 6430 sizeof(ndlp->nlp_portname)) == 0; 6431 } 6432 6433 static struct lpfc_nodelist * 6434 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6435 { 6436 struct lpfc_nodelist *ndlp; 6437 6438 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6439 if (filter(ndlp, param)) { 6440 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6441 "3185 FIND node filter %ps DID " 6442 "ndlp x%px did x%x flg x%x st x%x " 6443 "xri x%x type x%x rpi x%x\n", 6444 filter, ndlp, ndlp->nlp_DID, 6445 ndlp->nlp_flag, ndlp->nlp_state, 6446 ndlp->nlp_xri, ndlp->nlp_type, 6447 ndlp->nlp_rpi); 6448 return ndlp; 6449 } 6450 } 6451 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6452 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6453 return NULL; 6454 } 6455 6456 /* 6457 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6458 * returns the node list element pointer else return NULL. 6459 */ 6460 struct lpfc_nodelist * 6461 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6462 { 6463 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6464 } 6465 6466 /* 6467 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6468 * returns the node element list pointer else return NULL. 6469 */ 6470 struct lpfc_nodelist * 6471 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6472 { 6473 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6474 struct lpfc_nodelist *ndlp; 6475 6476 spin_lock_irq(shost->host_lock); 6477 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6478 spin_unlock_irq(shost->host_lock); 6479 return ndlp; 6480 } 6481 6482 /* 6483 * This routine looks up the ndlp lists for the given RPI. If the rpi 6484 * is found, the routine returns the node element list pointer else 6485 * return NULL. 6486 */ 6487 struct lpfc_nodelist * 6488 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6489 { 6490 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6491 struct lpfc_nodelist *ndlp; 6492 unsigned long flags; 6493 6494 spin_lock_irqsave(shost->host_lock, flags); 6495 ndlp = __lpfc_findnode_rpi(vport, rpi); 6496 spin_unlock_irqrestore(shost->host_lock, flags); 6497 return ndlp; 6498 } 6499 6500 /** 6501 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6502 * @phba: pointer to lpfc hba data structure. 6503 * @vpi: the physical host virtual N_Port identifier. 6504 * 6505 * This routine finds a vport on a HBA (referred by @phba) through a 6506 * @vpi. The function walks the HBA's vport list and returns the address 6507 * of the vport with the matching @vpi. 6508 * 6509 * Return code 6510 * NULL - No vport with the matching @vpi found 6511 * Otherwise - Address to the vport with the matching @vpi. 6512 **/ 6513 struct lpfc_vport * 6514 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6515 { 6516 struct lpfc_vport *vport; 6517 unsigned long flags; 6518 int i = 0; 6519 6520 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6521 if (vpi > 0) { 6522 /* 6523 * Translate the physical vpi to the logical vpi. The 6524 * vport stores the logical vpi. 6525 */ 6526 for (i = 0; i <= phba->max_vpi; i++) { 6527 if (vpi == phba->vpi_ids[i]) 6528 break; 6529 } 6530 6531 if (i > phba->max_vpi) { 6532 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6533 "2936 Could not find Vport mapped " 6534 "to vpi %d\n", vpi); 6535 return NULL; 6536 } 6537 } 6538 6539 spin_lock_irqsave(&phba->port_list_lock, flags); 6540 list_for_each_entry(vport, &phba->port_list, listentry) { 6541 if (vport->vpi == i) { 6542 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6543 return vport; 6544 } 6545 } 6546 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6547 return NULL; 6548 } 6549 6550 struct lpfc_nodelist * 6551 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6552 { 6553 struct lpfc_nodelist *ndlp; 6554 int rpi = LPFC_RPI_ALLOC_ERROR; 6555 6556 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6557 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6558 if (rpi == LPFC_RPI_ALLOC_ERROR) 6559 return NULL; 6560 } 6561 6562 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6563 if (!ndlp) { 6564 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6565 lpfc_sli4_free_rpi(vport->phba, rpi); 6566 return NULL; 6567 } 6568 6569 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6570 6571 spin_lock_init(&ndlp->lock); 6572 6573 lpfc_initialize_node(vport, ndlp, did); 6574 INIT_LIST_HEAD(&ndlp->nlp_listp); 6575 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6576 ndlp->nlp_rpi = rpi; 6577 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6578 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6579 "flg:x%x refcnt:%d\n", 6580 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6581 ndlp->nlp_flag, kref_read(&ndlp->kref)); 6582 6583 ndlp->active_rrqs_xri_bitmap = 6584 mempool_alloc(vport->phba->active_rrq_pool, 6585 GFP_KERNEL); 6586 if (ndlp->active_rrqs_xri_bitmap) 6587 memset(ndlp->active_rrqs_xri_bitmap, 0, 6588 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6589 } 6590 6591 6592 6593 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6594 "node init: did:x%x", 6595 ndlp->nlp_DID, 0, 0); 6596 6597 return ndlp; 6598 } 6599 6600 /* This routine releases all resources associated with a specifc NPort's ndlp 6601 * and mempool_free's the nodelist. 6602 */ 6603 static void 6604 lpfc_nlp_release(struct kref *kref) 6605 { 6606 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6607 kref); 6608 struct lpfc_vport *vport = ndlp->vport; 6609 6610 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6611 "node release: did:x%x flg:x%x type:x%x", 6612 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6613 6614 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6615 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n", 6616 __func__, ndlp, ndlp->nlp_DID, 6617 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6618 6619 /* remove ndlp from action. */ 6620 lpfc_cancel_retry_delay_tmo(vport, ndlp); 6621 lpfc_cleanup_node(vport, ndlp); 6622 6623 /* Not all ELS transactions have registered the RPI with the port. 6624 * In these cases the rpi usage is temporary and the node is 6625 * released when the WQE is completed. Catch this case to free the 6626 * RPI to the pool. Because this node is in the release path, a lock 6627 * is unnecessary. All references are gone and the node has been 6628 * dequeued. 6629 */ 6630 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 6631 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR && 6632 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) { 6633 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 6634 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 6635 } 6636 } 6637 6638 /* The node is not freed back to memory, it is released to a pool so 6639 * the node fields need to be cleaned up. 6640 */ 6641 ndlp->vport = NULL; 6642 ndlp->nlp_state = NLP_STE_FREED_NODE; 6643 ndlp->nlp_flag = 0; 6644 ndlp->fc4_xpt_flags = 0; 6645 6646 /* free ndlp memory for final ndlp release */ 6647 if (ndlp->phba->sli_rev == LPFC_SLI_REV4) 6648 mempool_free(ndlp->active_rrqs_xri_bitmap, 6649 ndlp->phba->active_rrq_pool); 6650 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6651 } 6652 6653 /* This routine bumps the reference count for a ndlp structure to ensure 6654 * that one discovery thread won't free a ndlp while another discovery thread 6655 * is using it. 6656 */ 6657 struct lpfc_nodelist * 6658 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6659 { 6660 unsigned long flags; 6661 6662 if (ndlp) { 6663 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6664 "node get: did:x%x flg:x%x refcnt:x%x", 6665 ndlp->nlp_DID, ndlp->nlp_flag, 6666 kref_read(&ndlp->kref)); 6667 6668 /* The check of ndlp usage to prevent incrementing the 6669 * ndlp reference count that is in the process of being 6670 * released. 6671 */ 6672 spin_lock_irqsave(&ndlp->lock, flags); 6673 if (!kref_get_unless_zero(&ndlp->kref)) { 6674 spin_unlock_irqrestore(&ndlp->lock, flags); 6675 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6676 "0276 %s: ndlp:x%px refcnt:%d\n", 6677 __func__, (void *)ndlp, kref_read(&ndlp->kref)); 6678 return NULL; 6679 } 6680 spin_unlock_irqrestore(&ndlp->lock, flags); 6681 } else { 6682 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__); 6683 } 6684 6685 return ndlp; 6686 } 6687 6688 /* This routine decrements the reference count for a ndlp structure. If the 6689 * count goes to 0, this indicates the associated nodelist should be freed. 6690 */ 6691 int 6692 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6693 { 6694 if (ndlp) { 6695 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6696 "node put: did:x%x flg:x%x refcnt:x%x", 6697 ndlp->nlp_DID, ndlp->nlp_flag, 6698 kref_read(&ndlp->kref)); 6699 } else { 6700 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__); 6701 } 6702 6703 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0; 6704 } 6705 6706 /* This routine free's the specified nodelist if it is not in use 6707 * by any other discovery thread. This routine returns 1 if the 6708 * ndlp has been freed. A return value of 0 indicates the ndlp is 6709 * not yet been released. 6710 */ 6711 int 6712 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6713 { 6714 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6715 "node not used: did:x%x flg:x%x refcnt:x%x", 6716 ndlp->nlp_DID, ndlp->nlp_flag, 6717 kref_read(&ndlp->kref)); 6718 6719 if (kref_read(&ndlp->kref) == 1) 6720 if (lpfc_nlp_put(ndlp)) 6721 return 1; 6722 return 0; 6723 } 6724 6725 /** 6726 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6727 * @phba: Pointer to hba context object. 6728 * 6729 * This function iterate through all FC nodes associated 6730 * will all vports to check if there is any node with 6731 * fc_rports associated with it. If there is an fc_rport 6732 * associated with the node, then the node is either in 6733 * discovered state or its devloss_timer is pending. 6734 */ 6735 static int 6736 lpfc_fcf_inuse(struct lpfc_hba *phba) 6737 { 6738 struct lpfc_vport **vports; 6739 int i, ret = 0; 6740 struct lpfc_nodelist *ndlp; 6741 struct Scsi_Host *shost; 6742 6743 vports = lpfc_create_vport_work_array(phba); 6744 6745 /* If driver cannot allocate memory, indicate fcf is in use */ 6746 if (!vports) 6747 return 1; 6748 6749 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6750 shost = lpfc_shost_from_vport(vports[i]); 6751 spin_lock_irq(shost->host_lock); 6752 /* 6753 * IF the CVL_RCVD bit is not set then we have sent the 6754 * flogi. 6755 * If dev_loss fires while we are waiting we do not want to 6756 * unreg the fcf. 6757 */ 6758 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6759 spin_unlock_irq(shost->host_lock); 6760 ret = 1; 6761 goto out; 6762 } 6763 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6764 if (ndlp->rport && 6765 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6766 ret = 1; 6767 spin_unlock_irq(shost->host_lock); 6768 goto out; 6769 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6770 ret = 1; 6771 lpfc_printf_log(phba, KERN_INFO, 6772 LOG_NODE | LOG_DISCOVERY, 6773 "2624 RPI %x DID %x flag %x " 6774 "still logged in\n", 6775 ndlp->nlp_rpi, ndlp->nlp_DID, 6776 ndlp->nlp_flag); 6777 } 6778 } 6779 spin_unlock_irq(shost->host_lock); 6780 } 6781 out: 6782 lpfc_destroy_vport_work_array(phba, vports); 6783 return ret; 6784 } 6785 6786 /** 6787 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6788 * @phba: Pointer to hba context object. 6789 * @mboxq: Pointer to mailbox object. 6790 * 6791 * This function frees memory associated with the mailbox command. 6792 */ 6793 void 6794 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6795 { 6796 struct lpfc_vport *vport = mboxq->vport; 6797 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6798 6799 if (mboxq->u.mb.mbxStatus) { 6800 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6801 "2555 UNREG_VFI mbxStatus error x%x " 6802 "HBA state x%x\n", 6803 mboxq->u.mb.mbxStatus, vport->port_state); 6804 } 6805 spin_lock_irq(shost->host_lock); 6806 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6807 spin_unlock_irq(shost->host_lock); 6808 mempool_free(mboxq, phba->mbox_mem_pool); 6809 return; 6810 } 6811 6812 /** 6813 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6814 * @phba: Pointer to hba context object. 6815 * @mboxq: Pointer to mailbox object. 6816 * 6817 * This function frees memory associated with the mailbox command. 6818 */ 6819 static void 6820 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6821 { 6822 struct lpfc_vport *vport = mboxq->vport; 6823 6824 if (mboxq->u.mb.mbxStatus) { 6825 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6826 "2550 UNREG_FCFI mbxStatus error x%x " 6827 "HBA state x%x\n", 6828 mboxq->u.mb.mbxStatus, vport->port_state); 6829 } 6830 mempool_free(mboxq, phba->mbox_mem_pool); 6831 return; 6832 } 6833 6834 /** 6835 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6836 * @phba: Pointer to hba context object. 6837 * 6838 * This function prepare the HBA for unregistering the currently registered 6839 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6840 * VFIs. 6841 */ 6842 int 6843 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6844 { 6845 struct lpfc_vport **vports; 6846 struct lpfc_nodelist *ndlp; 6847 struct Scsi_Host *shost; 6848 int i = 0, rc; 6849 6850 /* Unregister RPIs */ 6851 if (lpfc_fcf_inuse(phba)) 6852 lpfc_unreg_hba_rpis(phba); 6853 6854 /* At this point, all discovery is aborted */ 6855 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6856 6857 /* Unregister VPIs */ 6858 vports = lpfc_create_vport_work_array(phba); 6859 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6860 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6861 /* Stop FLOGI/FDISC retries */ 6862 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6863 if (ndlp) 6864 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6865 lpfc_cleanup_pending_mbox(vports[i]); 6866 if (phba->sli_rev == LPFC_SLI_REV4) 6867 lpfc_sli4_unreg_all_rpis(vports[i]); 6868 lpfc_mbx_unreg_vpi(vports[i]); 6869 shost = lpfc_shost_from_vport(vports[i]); 6870 spin_lock_irq(shost->host_lock); 6871 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6872 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6873 spin_unlock_irq(shost->host_lock); 6874 } 6875 lpfc_destroy_vport_work_array(phba, vports); 6876 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6877 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6878 if (ndlp) 6879 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6880 lpfc_cleanup_pending_mbox(phba->pport); 6881 if (phba->sli_rev == LPFC_SLI_REV4) 6882 lpfc_sli4_unreg_all_rpis(phba->pport); 6883 lpfc_mbx_unreg_vpi(phba->pport); 6884 shost = lpfc_shost_from_vport(phba->pport); 6885 spin_lock_irq(shost->host_lock); 6886 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6887 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6888 spin_unlock_irq(shost->host_lock); 6889 } 6890 6891 /* Cleanup any outstanding ELS commands */ 6892 lpfc_els_flush_all_cmd(phba); 6893 6894 /* Unregister the physical port VFI */ 6895 rc = lpfc_issue_unreg_vfi(phba->pport); 6896 return rc; 6897 } 6898 6899 /** 6900 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6901 * @phba: Pointer to hba context object. 6902 * 6903 * This function issues synchronous unregister FCF mailbox command to HBA to 6904 * unregister the currently registered FCF record. The driver does not reset 6905 * the driver FCF usage state flags. 6906 * 6907 * Return 0 if successfully issued, none-zero otherwise. 6908 */ 6909 int 6910 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6911 { 6912 LPFC_MBOXQ_t *mbox; 6913 int rc; 6914 6915 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6916 if (!mbox) { 6917 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6918 "2551 UNREG_FCFI mbox allocation failed" 6919 "HBA state x%x\n", phba->pport->port_state); 6920 return -ENOMEM; 6921 } 6922 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6923 mbox->vport = phba->pport; 6924 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6925 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6926 6927 if (rc == MBX_NOT_FINISHED) { 6928 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6929 "2552 Unregister FCFI command failed rc x%x " 6930 "HBA state x%x\n", 6931 rc, phba->pport->port_state); 6932 return -EINVAL; 6933 } 6934 return 0; 6935 } 6936 6937 /** 6938 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6939 * @phba: Pointer to hba context object. 6940 * 6941 * This function unregisters the currently reigstered FCF. This function 6942 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6943 */ 6944 void 6945 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6946 { 6947 int rc; 6948 6949 /* Preparation for unregistering fcf */ 6950 rc = lpfc_unregister_fcf_prep(phba); 6951 if (rc) { 6952 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6953 "2748 Failed to prepare for unregistering " 6954 "HBA's FCF record: rc=%d\n", rc); 6955 return; 6956 } 6957 6958 /* Now, unregister FCF record and reset HBA FCF state */ 6959 rc = lpfc_sli4_unregister_fcf(phba); 6960 if (rc) 6961 return; 6962 /* Reset HBA FCF states after successful unregister FCF */ 6963 phba->fcf.fcf_flag = 0; 6964 phba->fcf.current_rec.flag = 0; 6965 6966 /* 6967 * If driver is not unloading, check if there is any other 6968 * FCF record that can be used for discovery. 6969 */ 6970 if ((phba->pport->load_flag & FC_UNLOADING) || 6971 (phba->link_state < LPFC_LINK_UP)) 6972 return; 6973 6974 /* This is considered as the initial FCF discovery scan */ 6975 spin_lock_irq(&phba->hbalock); 6976 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6977 spin_unlock_irq(&phba->hbalock); 6978 6979 /* Reset FCF roundrobin bmask for new discovery */ 6980 lpfc_sli4_clear_fcf_rr_bmask(phba); 6981 6982 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6983 6984 if (rc) { 6985 spin_lock_irq(&phba->hbalock); 6986 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6987 spin_unlock_irq(&phba->hbalock); 6988 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6989 "2553 lpfc_unregister_unused_fcf failed " 6990 "to read FCF record HBA state x%x\n", 6991 phba->pport->port_state); 6992 } 6993 } 6994 6995 /** 6996 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6997 * @phba: Pointer to hba context object. 6998 * 6999 * This function just unregisters the currently reigstered FCF. It does not 7000 * try to find another FCF for discovery. 7001 */ 7002 void 7003 lpfc_unregister_fcf(struct lpfc_hba *phba) 7004 { 7005 int rc; 7006 7007 /* Preparation for unregistering fcf */ 7008 rc = lpfc_unregister_fcf_prep(phba); 7009 if (rc) { 7010 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7011 "2749 Failed to prepare for unregistering " 7012 "HBA's FCF record: rc=%d\n", rc); 7013 return; 7014 } 7015 7016 /* Now, unregister FCF record and reset HBA FCF state */ 7017 rc = lpfc_sli4_unregister_fcf(phba); 7018 if (rc) 7019 return; 7020 /* Set proper HBA FCF states after successful unregister FCF */ 7021 spin_lock_irq(&phba->hbalock); 7022 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 7023 spin_unlock_irq(&phba->hbalock); 7024 } 7025 7026 /** 7027 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 7028 * @phba: Pointer to hba context object. 7029 * 7030 * This function check if there are any connected remote port for the FCF and 7031 * if all the devices are disconnected, this function unregister FCFI. 7032 * This function also tries to use another FCF for discovery. 7033 */ 7034 void 7035 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 7036 { 7037 /* 7038 * If HBA is not running in FIP mode, if HBA does not support 7039 * FCoE, if FCF discovery is ongoing, or if FCF has not been 7040 * registered, do nothing. 7041 */ 7042 spin_lock_irq(&phba->hbalock); 7043 if (!(phba->hba_flag & HBA_FCOE_MODE) || 7044 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 7045 !(phba->hba_flag & HBA_FIP_SUPPORT) || 7046 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 7047 (phba->pport->port_state == LPFC_FLOGI)) { 7048 spin_unlock_irq(&phba->hbalock); 7049 return; 7050 } 7051 spin_unlock_irq(&phba->hbalock); 7052 7053 if (lpfc_fcf_inuse(phba)) 7054 return; 7055 7056 lpfc_unregister_fcf_rescan(phba); 7057 } 7058 7059 /** 7060 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 7061 * @phba: Pointer to hba context object. 7062 * @buff: Buffer containing the FCF connection table as in the config 7063 * region. 7064 * This function create driver data structure for the FCF connection 7065 * record table read from config region 23. 7066 */ 7067 static void 7068 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 7069 uint8_t *buff) 7070 { 7071 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 7072 struct lpfc_fcf_conn_hdr *conn_hdr; 7073 struct lpfc_fcf_conn_rec *conn_rec; 7074 uint32_t record_count; 7075 int i; 7076 7077 /* Free the current connect table */ 7078 list_for_each_entry_safe(conn_entry, next_conn_entry, 7079 &phba->fcf_conn_rec_list, list) { 7080 list_del_init(&conn_entry->list); 7081 kfree(conn_entry); 7082 } 7083 7084 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 7085 record_count = conn_hdr->length * sizeof(uint32_t)/ 7086 sizeof(struct lpfc_fcf_conn_rec); 7087 7088 conn_rec = (struct lpfc_fcf_conn_rec *) 7089 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 7090 7091 for (i = 0; i < record_count; i++) { 7092 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 7093 continue; 7094 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 7095 GFP_KERNEL); 7096 if (!conn_entry) { 7097 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7098 "2566 Failed to allocate connection" 7099 " table entry\n"); 7100 return; 7101 } 7102 7103 memcpy(&conn_entry->conn_rec, &conn_rec[i], 7104 sizeof(struct lpfc_fcf_conn_rec)); 7105 list_add_tail(&conn_entry->list, 7106 &phba->fcf_conn_rec_list); 7107 } 7108 7109 if (!list_empty(&phba->fcf_conn_rec_list)) { 7110 i = 0; 7111 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 7112 list) { 7113 conn_rec = &conn_entry->conn_rec; 7114 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7115 "3345 FCF connection list rec[%02d]: " 7116 "flags:x%04x, vtag:x%04x, " 7117 "fabric_name:x%02x:%02x:%02x:%02x:" 7118 "%02x:%02x:%02x:%02x, " 7119 "switch_name:x%02x:%02x:%02x:%02x:" 7120 "%02x:%02x:%02x:%02x\n", i++, 7121 conn_rec->flags, conn_rec->vlan_tag, 7122 conn_rec->fabric_name[0], 7123 conn_rec->fabric_name[1], 7124 conn_rec->fabric_name[2], 7125 conn_rec->fabric_name[3], 7126 conn_rec->fabric_name[4], 7127 conn_rec->fabric_name[5], 7128 conn_rec->fabric_name[6], 7129 conn_rec->fabric_name[7], 7130 conn_rec->switch_name[0], 7131 conn_rec->switch_name[1], 7132 conn_rec->switch_name[2], 7133 conn_rec->switch_name[3], 7134 conn_rec->switch_name[4], 7135 conn_rec->switch_name[5], 7136 conn_rec->switch_name[6], 7137 conn_rec->switch_name[7]); 7138 } 7139 } 7140 } 7141 7142 /** 7143 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 7144 * @phba: Pointer to hba context object. 7145 * @buff: Buffer containing the FCoE parameter data structure. 7146 * 7147 * This function update driver data structure with config 7148 * parameters read from config region 23. 7149 */ 7150 static void 7151 lpfc_read_fcoe_param(struct lpfc_hba *phba, 7152 uint8_t *buff) 7153 { 7154 struct lpfc_fip_param_hdr *fcoe_param_hdr; 7155 struct lpfc_fcoe_params *fcoe_param; 7156 7157 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 7158 buff; 7159 fcoe_param = (struct lpfc_fcoe_params *) 7160 (buff + sizeof(struct lpfc_fip_param_hdr)); 7161 7162 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 7163 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 7164 return; 7165 7166 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 7167 phba->valid_vlan = 1; 7168 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 7169 0xFFF; 7170 } 7171 7172 phba->fc_map[0] = fcoe_param->fc_map[0]; 7173 phba->fc_map[1] = fcoe_param->fc_map[1]; 7174 phba->fc_map[2] = fcoe_param->fc_map[2]; 7175 return; 7176 } 7177 7178 /** 7179 * lpfc_get_rec_conf23 - Get a record type in config region data. 7180 * @buff: Buffer containing config region 23 data. 7181 * @size: Size of the data buffer. 7182 * @rec_type: Record type to be searched. 7183 * 7184 * This function searches config region data to find the beginning 7185 * of the record specified by record_type. If record found, this 7186 * function return pointer to the record else return NULL. 7187 */ 7188 static uint8_t * 7189 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 7190 { 7191 uint32_t offset = 0, rec_length; 7192 7193 if ((buff[0] == LPFC_REGION23_LAST_REC) || 7194 (size < sizeof(uint32_t))) 7195 return NULL; 7196 7197 rec_length = buff[offset + 1]; 7198 7199 /* 7200 * One TLV record has one word header and number of data words 7201 * specified in the rec_length field of the record header. 7202 */ 7203 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 7204 <= size) { 7205 if (buff[offset] == rec_type) 7206 return &buff[offset]; 7207 7208 if (buff[offset] == LPFC_REGION23_LAST_REC) 7209 return NULL; 7210 7211 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 7212 rec_length = buff[offset + 1]; 7213 } 7214 return NULL; 7215 } 7216 7217 /** 7218 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 7219 * @phba: Pointer to lpfc_hba data structure. 7220 * @buff: Buffer containing config region 23 data. 7221 * @size: Size of the data buffer. 7222 * 7223 * This function parses the FCoE config parameters in config region 23 and 7224 * populate driver data structure with the parameters. 7225 */ 7226 void 7227 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 7228 uint8_t *buff, 7229 uint32_t size) 7230 { 7231 uint32_t offset = 0; 7232 uint8_t *rec_ptr; 7233 7234 /* 7235 * If data size is less than 2 words signature and version cannot be 7236 * verified. 7237 */ 7238 if (size < 2*sizeof(uint32_t)) 7239 return; 7240 7241 /* Check the region signature first */ 7242 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 7243 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7244 "2567 Config region 23 has bad signature\n"); 7245 return; 7246 } 7247 7248 offset += 4; 7249 7250 /* Check the data structure version */ 7251 if (buff[offset] != LPFC_REGION23_VERSION) { 7252 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7253 "2568 Config region 23 has bad version\n"); 7254 return; 7255 } 7256 offset += 4; 7257 7258 /* Read FCoE param record */ 7259 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7260 size - offset, FCOE_PARAM_TYPE); 7261 if (rec_ptr) 7262 lpfc_read_fcoe_param(phba, rec_ptr); 7263 7264 /* Read FCF connection table */ 7265 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7266 size - offset, FCOE_CONN_TBL_TYPE); 7267 if (rec_ptr) 7268 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7269 7270 } 7271