1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2021 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_err("**** %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\n", 173 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag, 174 vport->load_flag, kref_read(&ndlp->kref)); 175 176 /* Don't schedule a worker thread event if the vport is going down. 177 * The teardown process cleans up the node via lpfc_drop_node. 178 */ 179 if (vport->load_flag & FC_UNLOADING) { 180 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; 181 ndlp->rport = NULL; 182 183 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; 184 185 /* Remove the node reference from remote_port_add now. 186 * The driver will not call remote_port_delete. 187 */ 188 lpfc_nlp_put(ndlp); 189 return; 190 } 191 192 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 193 return; 194 195 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 196 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 197 "6789 rport name %llx != node port name %llx", 198 rport->port_name, 199 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 200 201 evtp = &ndlp->dev_loss_evt; 202 203 if (!list_empty(&evtp->evt_listp)) { 204 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 205 "6790 rport name %llx dev_loss_evt pending\n", 206 rport->port_name); 207 return; 208 } 209 210 spin_lock_irqsave(&ndlp->lock, iflags); 211 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 212 213 /* If there is a PLOGI in progress, and we are in a 214 * NLP_NPR_2B_DISC state, don't turn off the flag. 215 */ 216 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) 217 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 218 219 /* 220 * The backend does not expect any more calls associated with this 221 * rport. Remove the association between rport and ndlp. 222 */ 223 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; 224 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; 225 ndlp->rport = NULL; 226 spin_unlock_irqrestore(&ndlp->lock, iflags); 227 228 /* We need to hold the node by incrementing the reference 229 * count until this queued work is done 230 */ 231 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 232 233 spin_lock_irqsave(&phba->hbalock, iflags); 234 if (evtp->evt_arg1) { 235 evtp->evt = LPFC_EVT_DEV_LOSS; 236 list_add_tail(&evtp->evt_listp, &phba->work_list); 237 lpfc_worker_wake_up(phba); 238 } 239 spin_unlock_irqrestore(&phba->hbalock, iflags); 240 241 return; 242 } 243 244 /** 245 * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport 246 * @vport: Pointer to vport context object. 247 * 248 * This function checks for idle VMID entries related to a particular vport. If 249 * found unused/idle, free them accordingly. 250 **/ 251 static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport) 252 { 253 u16 keep; 254 u32 difftime = 0, r, bucket; 255 u64 *lta; 256 int cpu; 257 struct lpfc_vmid *vmp; 258 259 write_lock(&vport->vmid_lock); 260 261 if (!vport->cur_vmid_cnt) 262 goto out; 263 264 /* iterate through the table */ 265 hash_for_each(vport->hash_table, bucket, vmp, hnode) { 266 keep = 0; 267 if (vmp->flag & LPFC_VMID_REGISTERED) { 268 /* check if the particular VMID is in use */ 269 /* for all available per cpu variable */ 270 for_each_possible_cpu(cpu) { 271 /* if last access time is less than timeout */ 272 lta = per_cpu_ptr(vmp->last_io_time, cpu); 273 if (!lta) 274 continue; 275 difftime = (jiffies) - (*lta); 276 if ((vport->vmid_inactivity_timeout * 277 JIFFIES_PER_HR) > difftime) { 278 keep = 1; 279 break; 280 } 281 } 282 283 /* if none of the cpus have been used by the vm, */ 284 /* remove the entry if already registered */ 285 if (!keep) { 286 /* mark the entry for deregistration */ 287 vmp->flag = LPFC_VMID_DE_REGISTER; 288 write_unlock(&vport->vmid_lock); 289 if (vport->vmid_priority_tagging) 290 r = lpfc_vmid_uvem(vport, vmp, false); 291 else 292 r = lpfc_vmid_cmd(vport, 293 SLI_CTAS_DAPP_IDENT, 294 vmp); 295 296 /* decrement number of active vms and mark */ 297 /* entry in slot as free */ 298 write_lock(&vport->vmid_lock); 299 if (!r) { 300 struct lpfc_vmid *ht = vmp; 301 302 vport->cur_vmid_cnt--; 303 ht->flag = LPFC_VMID_SLOT_FREE; 304 free_percpu(ht->last_io_time); 305 ht->last_io_time = NULL; 306 hash_del(&ht->hnode); 307 } 308 } 309 } 310 } 311 out: 312 write_unlock(&vport->vmid_lock); 313 } 314 315 /** 316 * lpfc_check_inactive_vmid - VMID inactivity checker 317 * @phba: Pointer to hba context object. 318 * 319 * This function is called from the worker thread to determine if an entry in 320 * the VMID table can be released since there was no I/O activity seen from that 321 * particular VM for the specified time. When this happens, the entry in the 322 * table is released and also the resources on the switch cleared. 323 **/ 324 325 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba) 326 { 327 struct lpfc_vport *vport; 328 struct lpfc_vport **vports; 329 int i; 330 331 vports = lpfc_create_vport_work_array(phba); 332 if (!vports) 333 return; 334 335 for (i = 0; i <= phba->max_vports; i++) { 336 if ((!vports[i]) && (i == 0)) 337 vport = phba->pport; 338 else 339 vport = vports[i]; 340 if (!vport) 341 break; 342 343 lpfc_check_inactive_vmid_one(vport); 344 } 345 lpfc_destroy_vport_work_array(phba, vports); 346 } 347 348 /** 349 * lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss 350 * @vport: Pointer to vport object. 351 * @ndlp: Pointer to remote node object. 352 * 353 * If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of 354 * node during dev_loss_tmo processing, then this function restores the nlp_put 355 * kref decrement from lpfc_dev_loss_tmo_handler. 356 **/ 357 void 358 lpfc_check_nlp_post_devloss(struct lpfc_vport *vport, 359 struct lpfc_nodelist *ndlp) 360 { 361 unsigned long iflags; 362 363 spin_lock_irqsave(&ndlp->lock, iflags); 364 if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) { 365 ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS; 366 spin_unlock_irqrestore(&ndlp->lock, iflags); 367 lpfc_nlp_get(ndlp); 368 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE, 369 "8438 Devloss timeout reversed on DID x%x " 370 "refcnt %d ndlp %p flag x%x " 371 "port_state = x%x\n", 372 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp, 373 ndlp->nlp_flag, vport->port_state); 374 spin_lock_irqsave(&ndlp->lock, iflags); 375 } 376 spin_unlock_irqrestore(&ndlp->lock, iflags); 377 } 378 379 /** 380 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 381 * @ndlp: Pointer to remote node object. 382 * 383 * This function is called from the worker thread when devloss timeout timer 384 * expires. For SLI4 host, this routine shall return 1 when at lease one 385 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 386 * routine shall return 0 when there is no remote node is still in use of FCF 387 * when devloss timeout happened to this @ndlp. 388 **/ 389 static int 390 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 391 { 392 struct lpfc_vport *vport; 393 struct lpfc_hba *phba; 394 uint8_t *name; 395 int warn_on = 0; 396 int fcf_inuse = 0; 397 bool recovering = false; 398 struct fc_vport *fc_vport = NULL; 399 unsigned long iflags; 400 401 vport = ndlp->vport; 402 name = (uint8_t *)&ndlp->nlp_portname; 403 phba = vport->phba; 404 405 spin_lock_irqsave(&ndlp->lock, iflags); 406 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 407 spin_unlock_irqrestore(&ndlp->lock, iflags); 408 409 if (phba->sli_rev == LPFC_SLI_REV4) 410 fcf_inuse = lpfc_fcf_inuse(phba); 411 412 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 413 "rport devlosstmo:did:x%x type:x%x id:x%x", 414 ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid); 415 416 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 417 "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n", 418 __func__, ndlp->nlp_DID, ndlp->nlp_flag, 419 ndlp->fc4_xpt_flags, kref_read(&ndlp->kref)); 420 421 /* If the driver is recovering the rport, ignore devloss. */ 422 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 423 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 424 "0284 Devloss timeout Ignored on " 425 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 426 "NPort x%x\n", 427 *name, *(name+1), *(name+2), *(name+3), 428 *(name+4), *(name+5), *(name+6), *(name+7), 429 ndlp->nlp_DID); 430 return fcf_inuse; 431 } 432 433 /* Fabric nodes are done. */ 434 if (ndlp->nlp_type & NLP_FABRIC) { 435 spin_lock_irqsave(&ndlp->lock, iflags); 436 /* In massive vport configuration settings, it's possible 437 * dev_loss_tmo fired during node recovery. So, check if 438 * fabric nodes are in discovery states outstanding. 439 */ 440 switch (ndlp->nlp_DID) { 441 case Fabric_DID: 442 fc_vport = vport->fc_vport; 443 if (fc_vport && 444 fc_vport->vport_state == FC_VPORT_INITIALIZING) 445 recovering = true; 446 break; 447 case Fabric_Cntl_DID: 448 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 449 recovering = true; 450 break; 451 case FDMI_DID: 452 fallthrough; 453 case NameServer_DID: 454 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 455 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) 456 recovering = true; 457 break; 458 } 459 spin_unlock_irqrestore(&ndlp->lock, iflags); 460 461 /* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing 462 * the following lpfc_nlp_put is necessary after fabric node is 463 * recovered. 464 */ 465 if (recovering) { 466 lpfc_printf_vlog(vport, KERN_INFO, 467 LOG_DISCOVERY | LOG_NODE, 468 "8436 Devloss timeout marked on " 469 "DID x%x refcnt %d ndlp %p " 470 "flag x%x port_state = x%x\n", 471 ndlp->nlp_DID, kref_read(&ndlp->kref), 472 ndlp, ndlp->nlp_flag, 473 vport->port_state); 474 spin_lock_irqsave(&ndlp->lock, iflags); 475 ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS; 476 spin_unlock_irqrestore(&ndlp->lock, iflags); 477 } else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { 478 /* Fabric node fully recovered before this dev_loss_tmo 479 * queue work is processed. Thus, ignore the 480 * dev_loss_tmo event. 481 */ 482 lpfc_printf_vlog(vport, KERN_INFO, 483 LOG_DISCOVERY | LOG_NODE, 484 "8437 Devloss timeout ignored on " 485 "DID x%x refcnt %d ndlp %p " 486 "flag x%x port_state = x%x\n", 487 ndlp->nlp_DID, kref_read(&ndlp->kref), 488 ndlp, ndlp->nlp_flag, 489 vport->port_state); 490 return fcf_inuse; 491 } 492 493 lpfc_nlp_put(ndlp); 494 return fcf_inuse; 495 } 496 497 if (ndlp->nlp_sid != NLP_NO_SID) { 498 warn_on = 1; 499 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); 500 } 501 502 if (warn_on) { 503 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 504 "0203 Devloss timeout on " 505 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 506 "NPort x%06x Data: x%x x%x x%x\n", 507 *name, *(name+1), *(name+2), *(name+3), 508 *(name+4), *(name+5), *(name+6), *(name+7), 509 ndlp->nlp_DID, ndlp->nlp_flag, 510 ndlp->nlp_state, ndlp->nlp_rpi); 511 } else { 512 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT, 513 "0204 Devloss timeout on " 514 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 515 "NPort x%06x Data: x%x x%x x%x\n", 516 *name, *(name+1), *(name+2), *(name+3), 517 *(name+4), *(name+5), *(name+6), *(name+7), 518 ndlp->nlp_DID, ndlp->nlp_flag, 519 ndlp->nlp_state, ndlp->nlp_rpi); 520 } 521 522 /* If we are devloss, but we are in the process of rediscovering the 523 * ndlp, don't issue a NLP_EVT_DEVICE_RM event. 524 */ 525 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && 526 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) { 527 return fcf_inuse; 528 } 529 530 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) 531 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 532 533 return fcf_inuse; 534 } 535 536 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba) 537 { 538 struct lpfc_vport *vport; 539 struct lpfc_vport **vports; 540 int i; 541 542 vports = lpfc_create_vport_work_array(phba); 543 if (!vports) 544 return; 545 546 for (i = 0; i <= phba->max_vports; i++) { 547 if ((!vports[i]) && (i == 0)) 548 vport = phba->pport; 549 else 550 vport = vports[i]; 551 if (!vport) 552 break; 553 554 if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) { 555 if (!lpfc_issue_els_qfpa(vport)) 556 vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA; 557 } 558 } 559 lpfc_destroy_vport_work_array(phba, vports); 560 } 561 562 /** 563 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 564 * @phba: Pointer to hba context object. 565 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 566 * @nlp_did: remote node identifer with devloss timeout. 567 * 568 * This function is called from the worker thread after invoking devloss 569 * timeout handler and releasing the reference count for the ndlp with 570 * which the devloss timeout was handled for SLI4 host. For the devloss 571 * timeout of the last remote node which had been in use of FCF, when this 572 * routine is invoked, it shall be guaranteed that none of the remote are 573 * in-use of FCF. When devloss timeout to the last remote using the FCF, 574 * if the FIP engine is neither in FCF table scan process nor roundrobin 575 * failover process, the in-use FCF shall be unregistered. If the FIP 576 * engine is in FCF discovery process, the devloss timeout state shall 577 * be set for either the FCF table scan process or roundrobin failover 578 * process to unregister the in-use FCF. 579 **/ 580 static void 581 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 582 uint32_t nlp_did) 583 { 584 /* If devloss timeout happened to a remote node when FCF had no 585 * longer been in-use, do nothing. 586 */ 587 if (!fcf_inuse) 588 return; 589 590 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 591 spin_lock_irq(&phba->hbalock); 592 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 593 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 594 spin_unlock_irq(&phba->hbalock); 595 return; 596 } 597 phba->hba_flag |= HBA_DEVLOSS_TMO; 598 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 599 "2847 Last remote node (x%x) using " 600 "FCF devloss tmo\n", nlp_did); 601 } 602 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 603 spin_unlock_irq(&phba->hbalock); 604 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 605 "2868 Devloss tmo to FCF rediscovery " 606 "in progress\n"); 607 return; 608 } 609 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 610 spin_unlock_irq(&phba->hbalock); 611 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 612 "2869 Devloss tmo to idle FIP engine, " 613 "unreg in-use FCF and rescan.\n"); 614 /* Unregister in-use FCF and rescan */ 615 lpfc_unregister_fcf_rescan(phba); 616 return; 617 } 618 spin_unlock_irq(&phba->hbalock); 619 if (phba->hba_flag & FCF_TS_INPROG) 620 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 621 "2870 FCF table scan in progress\n"); 622 if (phba->hba_flag & FCF_RR_INPROG) 623 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 624 "2871 FLOGI roundrobin FCF failover " 625 "in progress\n"); 626 } 627 lpfc_unregister_unused_fcf(phba); 628 } 629 630 /** 631 * lpfc_alloc_fast_evt - Allocates data structure for posting event 632 * @phba: Pointer to hba context object. 633 * 634 * This function is called from the functions which need to post 635 * events from interrupt context. This function allocates data 636 * structure required for posting event. It also keeps track of 637 * number of events pending and prevent event storm when there are 638 * too many events. 639 **/ 640 struct lpfc_fast_path_event * 641 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 642 struct lpfc_fast_path_event *ret; 643 644 /* If there are lot of fast event do not exhaust memory due to this */ 645 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 646 return NULL; 647 648 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 649 GFP_ATOMIC); 650 if (ret) { 651 atomic_inc(&phba->fast_event_count); 652 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 653 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 654 } 655 return ret; 656 } 657 658 /** 659 * lpfc_free_fast_evt - Frees event data structure 660 * @phba: Pointer to hba context object. 661 * @evt: Event object which need to be freed. 662 * 663 * This function frees the data structure required for posting 664 * events. 665 **/ 666 void 667 lpfc_free_fast_evt(struct lpfc_hba *phba, 668 struct lpfc_fast_path_event *evt) { 669 670 atomic_dec(&phba->fast_event_count); 671 kfree(evt); 672 } 673 674 /** 675 * lpfc_send_fastpath_evt - Posts events generated from fast path 676 * @phba: Pointer to hba context object. 677 * @evtp: Event data structure. 678 * 679 * This function is called from worker thread, when the interrupt 680 * context need to post an event. This function posts the event 681 * to fc transport netlink interface. 682 **/ 683 static void 684 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 685 struct lpfc_work_evt *evtp) 686 { 687 unsigned long evt_category, evt_sub_category; 688 struct lpfc_fast_path_event *fast_evt_data; 689 char *evt_data; 690 uint32_t evt_data_size; 691 struct Scsi_Host *shost; 692 693 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 694 work_evt); 695 696 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 697 evt_sub_category = (unsigned long) fast_evt_data->un. 698 fabric_evt.subcategory; 699 shost = lpfc_shost_from_vport(fast_evt_data->vport); 700 if (evt_category == FC_REG_FABRIC_EVENT) { 701 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 702 evt_data = (char *) &fast_evt_data->un.read_check_error; 703 evt_data_size = sizeof(fast_evt_data->un. 704 read_check_error); 705 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 706 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 707 evt_data = (char *) &fast_evt_data->un.fabric_evt; 708 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 709 } else { 710 lpfc_free_fast_evt(phba, fast_evt_data); 711 return; 712 } 713 } else if (evt_category == FC_REG_SCSI_EVENT) { 714 switch (evt_sub_category) { 715 case LPFC_EVENT_QFULL: 716 case LPFC_EVENT_DEVBSY: 717 evt_data = (char *) &fast_evt_data->un.scsi_evt; 718 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 719 break; 720 case LPFC_EVENT_CHECK_COND: 721 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 722 evt_data_size = sizeof(fast_evt_data->un. 723 check_cond_evt); 724 break; 725 case LPFC_EVENT_VARQUEDEPTH: 726 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 727 evt_data_size = sizeof(fast_evt_data->un. 728 queue_depth_evt); 729 break; 730 default: 731 lpfc_free_fast_evt(phba, fast_evt_data); 732 return; 733 } 734 } else { 735 lpfc_free_fast_evt(phba, fast_evt_data); 736 return; 737 } 738 739 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 740 fc_host_post_vendor_event(shost, 741 fc_get_event_number(), 742 evt_data_size, 743 evt_data, 744 LPFC_NL_VENDOR_ID); 745 746 lpfc_free_fast_evt(phba, fast_evt_data); 747 return; 748 } 749 750 static void 751 lpfc_work_list_done(struct lpfc_hba *phba) 752 { 753 struct lpfc_work_evt *evtp = NULL; 754 struct lpfc_nodelist *ndlp; 755 int free_evt; 756 int fcf_inuse; 757 uint32_t nlp_did; 758 759 spin_lock_irq(&phba->hbalock); 760 while (!list_empty(&phba->work_list)) { 761 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 762 evt_listp); 763 spin_unlock_irq(&phba->hbalock); 764 free_evt = 1; 765 switch (evtp->evt) { 766 case LPFC_EVT_ELS_RETRY: 767 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 768 lpfc_els_retry_delay_handler(ndlp); 769 free_evt = 0; /* evt is part of ndlp */ 770 /* decrement the node reference count held 771 * for this queued work 772 */ 773 lpfc_nlp_put(ndlp); 774 break; 775 case LPFC_EVT_DEV_LOSS: 776 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 777 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 778 free_evt = 0; 779 /* decrement the node reference count held for 780 * this queued work 781 */ 782 nlp_did = ndlp->nlp_DID; 783 lpfc_nlp_put(ndlp); 784 if (phba->sli_rev == LPFC_SLI_REV4) 785 lpfc_sli4_post_dev_loss_tmo_handler(phba, 786 fcf_inuse, 787 nlp_did); 788 break; 789 case LPFC_EVT_RECOVER_PORT: 790 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 791 lpfc_sli_abts_recover_port(ndlp->vport, ndlp); 792 free_evt = 0; 793 /* decrement the node reference count held for 794 * this queued work 795 */ 796 lpfc_nlp_put(ndlp); 797 break; 798 case LPFC_EVT_ONLINE: 799 if (phba->link_state < LPFC_LINK_DOWN) 800 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 801 else 802 *(int *) (evtp->evt_arg1) = 0; 803 complete((struct completion *)(evtp->evt_arg2)); 804 break; 805 case LPFC_EVT_OFFLINE_PREP: 806 if (phba->link_state >= LPFC_LINK_DOWN) 807 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 808 *(int *)(evtp->evt_arg1) = 0; 809 complete((struct completion *)(evtp->evt_arg2)); 810 break; 811 case LPFC_EVT_OFFLINE: 812 lpfc_offline(phba); 813 lpfc_sli_brdrestart(phba); 814 *(int *)(evtp->evt_arg1) = 815 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 816 lpfc_unblock_mgmt_io(phba); 817 complete((struct completion *)(evtp->evt_arg2)); 818 break; 819 case LPFC_EVT_WARM_START: 820 lpfc_offline(phba); 821 lpfc_reset_barrier(phba); 822 lpfc_sli_brdreset(phba); 823 lpfc_hba_down_post(phba); 824 *(int *)(evtp->evt_arg1) = 825 lpfc_sli_brdready(phba, HS_MBRDY); 826 lpfc_unblock_mgmt_io(phba); 827 complete((struct completion *)(evtp->evt_arg2)); 828 break; 829 case LPFC_EVT_KILL: 830 lpfc_offline(phba); 831 *(int *)(evtp->evt_arg1) 832 = (phba->pport->stopped) 833 ? 0 : lpfc_sli_brdkill(phba); 834 lpfc_unblock_mgmt_io(phba); 835 complete((struct completion *)(evtp->evt_arg2)); 836 break; 837 case LPFC_EVT_FASTPATH_MGMT_EVT: 838 lpfc_send_fastpath_evt(phba, evtp); 839 free_evt = 0; 840 break; 841 case LPFC_EVT_RESET_HBA: 842 if (!(phba->pport->load_flag & FC_UNLOADING)) 843 lpfc_reset_hba(phba); 844 break; 845 } 846 if (free_evt) 847 kfree(evtp); 848 spin_lock_irq(&phba->hbalock); 849 } 850 spin_unlock_irq(&phba->hbalock); 851 852 } 853 854 static void 855 lpfc_work_done(struct lpfc_hba *phba) 856 { 857 struct lpfc_sli_ring *pring; 858 uint32_t ha_copy, status, control, work_port_events; 859 struct lpfc_vport **vports; 860 struct lpfc_vport *vport; 861 int i; 862 863 spin_lock_irq(&phba->hbalock); 864 ha_copy = phba->work_ha; 865 phba->work_ha = 0; 866 spin_unlock_irq(&phba->hbalock); 867 868 /* First, try to post the next mailbox command to SLI4 device */ 869 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 870 lpfc_sli4_post_async_mbox(phba); 871 872 if (ha_copy & HA_ERATT) 873 /* Handle the error attention event */ 874 lpfc_handle_eratt(phba); 875 876 if (ha_copy & HA_MBATT) 877 lpfc_sli_handle_mb_event(phba); 878 879 if (ha_copy & HA_LATT) 880 lpfc_handle_latt(phba); 881 882 /* Handle VMID Events */ 883 if (lpfc_is_vmid_enabled(phba)) { 884 if (phba->pport->work_port_events & 885 WORKER_CHECK_VMID_ISSUE_QFPA) { 886 lpfc_check_vmid_qfpa_issue(phba); 887 phba->pport->work_port_events &= 888 ~WORKER_CHECK_VMID_ISSUE_QFPA; 889 } 890 if (phba->pport->work_port_events & 891 WORKER_CHECK_INACTIVE_VMID) { 892 lpfc_check_inactive_vmid(phba); 893 phba->pport->work_port_events &= 894 ~WORKER_CHECK_INACTIVE_VMID; 895 } 896 } 897 898 /* Process SLI4 events */ 899 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 900 if (phba->hba_flag & HBA_RRQ_ACTIVE) 901 lpfc_handle_rrq_active(phba); 902 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 903 lpfc_sli4_els_xri_abort_event_proc(phba); 904 if (phba->hba_flag & ASYNC_EVENT) 905 lpfc_sli4_async_event_proc(phba); 906 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 907 spin_lock_irq(&phba->hbalock); 908 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 909 spin_unlock_irq(&phba->hbalock); 910 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 911 } 912 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 913 lpfc_sli4_fcf_redisc_event_proc(phba); 914 } 915 916 vports = lpfc_create_vport_work_array(phba); 917 if (vports != NULL) 918 for (i = 0; i <= phba->max_vports; i++) { 919 /* 920 * We could have no vports in array if unloading, so if 921 * this happens then just use the pport 922 */ 923 if (vports[i] == NULL && i == 0) 924 vport = phba->pport; 925 else 926 vport = vports[i]; 927 if (vport == NULL) 928 break; 929 spin_lock_irq(&vport->work_port_lock); 930 work_port_events = vport->work_port_events; 931 vport->work_port_events &= ~work_port_events; 932 spin_unlock_irq(&vport->work_port_lock); 933 if (work_port_events & WORKER_DISC_TMO) 934 lpfc_disc_timeout_handler(vport); 935 if (work_port_events & WORKER_ELS_TMO) 936 lpfc_els_timeout_handler(vport); 937 if (work_port_events & WORKER_HB_TMO) 938 lpfc_hb_timeout_handler(phba); 939 if (work_port_events & WORKER_MBOX_TMO) 940 lpfc_mbox_timeout_handler(phba); 941 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 942 lpfc_unblock_fabric_iocbs(phba); 943 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 944 lpfc_ramp_down_queue_handler(phba); 945 if (work_port_events & WORKER_DELAYED_DISC_TMO) 946 lpfc_delayed_disc_timeout_handler(vport); 947 } 948 lpfc_destroy_vport_work_array(phba, vports); 949 950 pring = lpfc_phba_elsring(phba); 951 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 952 status >>= (4*LPFC_ELS_RING); 953 if (pring && (status & HA_RXMASK || 954 pring->flag & LPFC_DEFERRED_RING_EVENT || 955 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 956 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 957 pring->flag |= LPFC_DEFERRED_RING_EVENT; 958 /* Preserve legacy behavior. */ 959 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 960 set_bit(LPFC_DATA_READY, &phba->data_flags); 961 } else { 962 /* Driver could have abort request completed in queue 963 * when link goes down. Allow for this transition. 964 */ 965 if (phba->link_state >= LPFC_LINK_DOWN || 966 phba->link_flag & LS_MDS_LOOPBACK) { 967 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 968 lpfc_sli_handle_slow_ring_event(phba, pring, 969 (status & 970 HA_RXMASK)); 971 } 972 } 973 if (phba->sli_rev == LPFC_SLI_REV4) 974 lpfc_drain_txq(phba); 975 /* 976 * Turn on Ring interrupts 977 */ 978 if (phba->sli_rev <= LPFC_SLI_REV3) { 979 spin_lock_irq(&phba->hbalock); 980 control = readl(phba->HCregaddr); 981 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 982 lpfc_debugfs_slow_ring_trc(phba, 983 "WRK Enable ring: cntl:x%x hacopy:x%x", 984 control, ha_copy, 0); 985 986 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 987 writel(control, phba->HCregaddr); 988 readl(phba->HCregaddr); /* flush */ 989 } else { 990 lpfc_debugfs_slow_ring_trc(phba, 991 "WRK Ring ok: cntl:x%x hacopy:x%x", 992 control, ha_copy, 0); 993 } 994 spin_unlock_irq(&phba->hbalock); 995 } 996 } 997 lpfc_work_list_done(phba); 998 } 999 1000 int 1001 lpfc_do_work(void *p) 1002 { 1003 struct lpfc_hba *phba = p; 1004 int rc; 1005 1006 set_user_nice(current, MIN_NICE); 1007 current->flags |= PF_NOFREEZE; 1008 phba->data_flags = 0; 1009 1010 while (!kthread_should_stop()) { 1011 /* wait and check worker queue activities */ 1012 rc = wait_event_interruptible(phba->work_waitq, 1013 (test_and_clear_bit(LPFC_DATA_READY, 1014 &phba->data_flags) 1015 || kthread_should_stop())); 1016 /* Signal wakeup shall terminate the worker thread */ 1017 if (rc) { 1018 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 1019 "0433 Wakeup on signal: rc=x%x\n", rc); 1020 break; 1021 } 1022 1023 /* Attend pending lpfc data processing */ 1024 lpfc_work_done(phba); 1025 } 1026 phba->worker_thread = NULL; 1027 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 1028 "0432 Worker thread stopped.\n"); 1029 return 0; 1030 } 1031 1032 /* 1033 * This is only called to handle FC worker events. Since this a rare 1034 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 1035 * embedding it in the IOCB. 1036 */ 1037 int 1038 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 1039 uint32_t evt) 1040 { 1041 struct lpfc_work_evt *evtp; 1042 unsigned long flags; 1043 1044 /* 1045 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 1046 * be queued to worker thread for processing 1047 */ 1048 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 1049 if (!evtp) 1050 return 0; 1051 1052 evtp->evt_arg1 = arg1; 1053 evtp->evt_arg2 = arg2; 1054 evtp->evt = evt; 1055 1056 spin_lock_irqsave(&phba->hbalock, flags); 1057 list_add_tail(&evtp->evt_listp, &phba->work_list); 1058 spin_unlock_irqrestore(&phba->hbalock, flags); 1059 1060 lpfc_worker_wake_up(phba); 1061 1062 return 1; 1063 } 1064 1065 void 1066 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 1067 { 1068 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1069 struct lpfc_hba *phba = vport->phba; 1070 struct lpfc_nodelist *ndlp, *next_ndlp; 1071 1072 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1073 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 1074 /* It's possible the FLOGI to the fabric node never 1075 * successfully completed and never registered with the 1076 * transport. In this case there is no way to clean up 1077 * the node. 1078 */ 1079 if (ndlp->nlp_DID == Fabric_DID) { 1080 if (ndlp->nlp_prev_state == 1081 NLP_STE_UNUSED_NODE && 1082 !ndlp->fc4_xpt_flags) 1083 lpfc_nlp_put(ndlp); 1084 } 1085 continue; 1086 } 1087 1088 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 1089 ((vport->port_type == LPFC_NPIV_PORT) && 1090 ((ndlp->nlp_DID == NameServer_DID) || 1091 (ndlp->nlp_DID == FDMI_DID) || 1092 (ndlp->nlp_DID == Fabric_Cntl_DID)))) 1093 lpfc_unreg_rpi(vport, ndlp); 1094 1095 /* Leave Fabric nodes alone on link down */ 1096 if ((phba->sli_rev < LPFC_SLI_REV4) && 1097 (!remove && ndlp->nlp_type & NLP_FABRIC)) 1098 continue; 1099 1100 /* Notify transport of connectivity loss to trigger cleanup. */ 1101 if (phba->nvmet_support && 1102 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 1103 lpfc_nvmet_invalidate_host(phba, ndlp); 1104 1105 lpfc_disc_state_machine(vport, ndlp, NULL, 1106 remove 1107 ? NLP_EVT_DEVICE_RM 1108 : NLP_EVT_DEVICE_RECOVERY); 1109 } 1110 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 1111 if (phba->sli_rev == LPFC_SLI_REV4) 1112 lpfc_sli4_unreg_all_rpis(vport); 1113 lpfc_mbx_unreg_vpi(vport); 1114 spin_lock_irq(shost->host_lock); 1115 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1116 spin_unlock_irq(shost->host_lock); 1117 } 1118 } 1119 1120 void 1121 lpfc_port_link_failure(struct lpfc_vport *vport) 1122 { 1123 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 1124 1125 /* Cleanup any outstanding received buffers */ 1126 lpfc_cleanup_rcv_buffers(vport); 1127 1128 /* Cleanup any outstanding RSCN activity */ 1129 lpfc_els_flush_rscn(vport); 1130 1131 /* Cleanup any outstanding ELS commands */ 1132 lpfc_els_flush_cmd(vport); 1133 1134 lpfc_cleanup_rpis(vport, 0); 1135 1136 /* Turn off discovery timer if its running */ 1137 lpfc_can_disctmo(vport); 1138 } 1139 1140 void 1141 lpfc_linkdown_port(struct lpfc_vport *vport) 1142 { 1143 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1144 1145 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1146 fc_host_post_event(shost, fc_get_event_number(), 1147 FCH_EVT_LINKDOWN, 0); 1148 1149 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1150 "Link Down: state:x%x rtry:x%x flg:x%x", 1151 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 1152 1153 lpfc_port_link_failure(vport); 1154 1155 /* Stop delayed Nport discovery */ 1156 spin_lock_irq(shost->host_lock); 1157 vport->fc_flag &= ~FC_DISC_DELAYED; 1158 spin_unlock_irq(shost->host_lock); 1159 del_timer_sync(&vport->delayed_disc_tmo); 1160 } 1161 1162 int 1163 lpfc_linkdown(struct lpfc_hba *phba) 1164 { 1165 struct lpfc_vport *vport = phba->pport; 1166 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1167 struct lpfc_vport **vports; 1168 LPFC_MBOXQ_t *mb; 1169 int i; 1170 1171 if (phba->link_state == LPFC_LINK_DOWN) 1172 return 0; 1173 1174 /* Block all SCSI stack I/Os */ 1175 lpfc_scsi_dev_block(phba); 1176 1177 phba->defer_flogi_acc_flag = false; 1178 1179 spin_lock_irq(&phba->hbalock); 1180 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1181 spin_unlock_irq(&phba->hbalock); 1182 if (phba->link_state > LPFC_LINK_DOWN) { 1183 phba->link_state = LPFC_LINK_DOWN; 1184 if (phba->sli4_hba.conf_trunk) { 1185 phba->trunk_link.link0.state = 0; 1186 phba->trunk_link.link1.state = 0; 1187 phba->trunk_link.link2.state = 0; 1188 phba->trunk_link.link3.state = 0; 1189 phba->sli4_hba.link_state.logical_speed = 1190 LPFC_LINK_SPEED_UNKNOWN; 1191 } 1192 spin_lock_irq(shost->host_lock); 1193 phba->pport->fc_flag &= ~FC_LBIT; 1194 spin_unlock_irq(shost->host_lock); 1195 } 1196 vports = lpfc_create_vport_work_array(phba); 1197 if (vports != NULL) { 1198 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1199 /* Issue a LINK DOWN event to all nodes */ 1200 lpfc_linkdown_port(vports[i]); 1201 1202 vports[i]->fc_myDID = 0; 1203 1204 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 1205 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 1206 if (phba->nvmet_support) 1207 lpfc_nvmet_update_targetport(phba); 1208 else 1209 lpfc_nvme_update_localport(vports[i]); 1210 } 1211 } 1212 } 1213 lpfc_destroy_vport_work_array(phba, vports); 1214 1215 /* Clean up any SLI3 firmware default rpi's */ 1216 if (phba->sli_rev > LPFC_SLI_REV3) 1217 goto skip_unreg_did; 1218 1219 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1220 if (mb) { 1221 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 1222 mb->vport = vport; 1223 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1224 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1225 == MBX_NOT_FINISHED) { 1226 mempool_free(mb, phba->mbox_mem_pool); 1227 } 1228 } 1229 1230 skip_unreg_did: 1231 /* Setup myDID for link up if we are in pt2pt mode */ 1232 if (phba->pport->fc_flag & FC_PT2PT) { 1233 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1234 if (mb) { 1235 lpfc_config_link(phba, mb); 1236 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1237 mb->vport = vport; 1238 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 1239 == MBX_NOT_FINISHED) { 1240 mempool_free(mb, phba->mbox_mem_pool); 1241 } 1242 } 1243 spin_lock_irq(shost->host_lock); 1244 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 1245 phba->pport->rcv_flogi_cnt = 0; 1246 spin_unlock_irq(shost->host_lock); 1247 } 1248 return 0; 1249 } 1250 1251 static void 1252 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 1253 { 1254 struct lpfc_nodelist *ndlp; 1255 1256 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 1257 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 1258 1259 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1260 continue; 1261 if (ndlp->nlp_type & NLP_FABRIC) { 1262 /* On Linkup its safe to clean up the ndlp 1263 * from Fabric connections. 1264 */ 1265 if (ndlp->nlp_DID != Fabric_DID) 1266 lpfc_unreg_rpi(vport, ndlp); 1267 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1268 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 1269 /* Fail outstanding IO now since device is 1270 * marked for PLOGI. 1271 */ 1272 lpfc_unreg_rpi(vport, ndlp); 1273 } 1274 } 1275 } 1276 1277 static void 1278 lpfc_linkup_port(struct lpfc_vport *vport) 1279 { 1280 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1281 struct lpfc_hba *phba = vport->phba; 1282 1283 if ((vport->load_flag & FC_UNLOADING) != 0) 1284 return; 1285 1286 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1287 "Link Up: top:x%x speed:x%x flg:x%x", 1288 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1289 1290 /* If NPIV is not enabled, only bring the physical port up */ 1291 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1292 (vport != phba->pport)) 1293 return; 1294 1295 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1296 fc_host_post_event(shost, fc_get_event_number(), 1297 FCH_EVT_LINKUP, 0); 1298 1299 spin_lock_irq(shost->host_lock); 1300 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1301 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1302 vport->fc_flag |= FC_NDISC_ACTIVE; 1303 vport->fc_ns_retry = 0; 1304 spin_unlock_irq(shost->host_lock); 1305 1306 lpfc_linkup_cleanup_nodes(vport); 1307 } 1308 1309 static int 1310 lpfc_linkup(struct lpfc_hba *phba) 1311 { 1312 struct lpfc_vport **vports; 1313 int i; 1314 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1315 1316 phba->link_state = LPFC_LINK_UP; 1317 1318 /* Unblock fabric iocbs if they are blocked */ 1319 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1320 del_timer_sync(&phba->fabric_block_timer); 1321 1322 vports = lpfc_create_vport_work_array(phba); 1323 if (vports != NULL) 1324 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1325 lpfc_linkup_port(vports[i]); 1326 lpfc_destroy_vport_work_array(phba, vports); 1327 1328 /* Clear the pport flogi counter in case the link down was 1329 * absorbed without an ACQE. No lock here - in worker thread 1330 * and discovery is synchronized. 1331 */ 1332 spin_lock_irq(shost->host_lock); 1333 phba->pport->rcv_flogi_cnt = 0; 1334 spin_unlock_irq(shost->host_lock); 1335 1336 /* reinitialize initial FLOGI flag */ 1337 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1338 phba->defer_flogi_acc_flag = false; 1339 1340 return 0; 1341 } 1342 1343 /* 1344 * This routine handles processing a CLEAR_LA mailbox 1345 * command upon completion. It is setup in the LPFC_MBOXQ 1346 * as the completion routine when the command is 1347 * handed off to the SLI layer. SLI3 only. 1348 */ 1349 static void 1350 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1351 { 1352 struct lpfc_vport *vport = pmb->vport; 1353 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1354 struct lpfc_sli *psli = &phba->sli; 1355 MAILBOX_t *mb = &pmb->u.mb; 1356 uint32_t control; 1357 1358 /* Since we don't do discovery right now, turn these off here */ 1359 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1360 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1361 1362 /* Check for error */ 1363 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1364 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1365 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1366 "0320 CLEAR_LA mbxStatus error x%x hba " 1367 "state x%x\n", 1368 mb->mbxStatus, vport->port_state); 1369 phba->link_state = LPFC_HBA_ERROR; 1370 goto out; 1371 } 1372 1373 if (vport->port_type == LPFC_PHYSICAL_PORT) 1374 phba->link_state = LPFC_HBA_READY; 1375 1376 spin_lock_irq(&phba->hbalock); 1377 psli->sli_flag |= LPFC_PROCESS_LA; 1378 control = readl(phba->HCregaddr); 1379 control |= HC_LAINT_ENA; 1380 writel(control, phba->HCregaddr); 1381 readl(phba->HCregaddr); /* flush */ 1382 spin_unlock_irq(&phba->hbalock); 1383 mempool_free(pmb, phba->mbox_mem_pool); 1384 return; 1385 1386 out: 1387 /* Device Discovery completes */ 1388 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1389 "0225 Device Discovery completes\n"); 1390 mempool_free(pmb, phba->mbox_mem_pool); 1391 1392 spin_lock_irq(shost->host_lock); 1393 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1394 spin_unlock_irq(shost->host_lock); 1395 1396 lpfc_can_disctmo(vport); 1397 1398 /* turn on Link Attention interrupts */ 1399 1400 spin_lock_irq(&phba->hbalock); 1401 psli->sli_flag |= LPFC_PROCESS_LA; 1402 control = readl(phba->HCregaddr); 1403 control |= HC_LAINT_ENA; 1404 writel(control, phba->HCregaddr); 1405 readl(phba->HCregaddr); /* flush */ 1406 spin_unlock_irq(&phba->hbalock); 1407 1408 return; 1409 } 1410 1411 void 1412 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1413 { 1414 struct lpfc_vport *vport = pmb->vport; 1415 LPFC_MBOXQ_t *sparam_mb; 1416 struct lpfc_dmabuf *sparam_mp; 1417 u16 status = pmb->u.mb.mbxStatus; 1418 int rc; 1419 1420 mempool_free(pmb, phba->mbox_mem_pool); 1421 1422 if (status) 1423 goto out; 1424 1425 /* don't perform discovery for SLI4 loopback diagnostic test */ 1426 if ((phba->sli_rev == LPFC_SLI_REV4) && 1427 !(phba->hba_flag & HBA_FCOE_MODE) && 1428 (phba->link_flag & LS_LOOPBACK_MODE)) 1429 return; 1430 1431 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1432 vport->fc_flag & FC_PUBLIC_LOOP && 1433 !(vport->fc_flag & FC_LBIT)) { 1434 /* Need to wait for FAN - use discovery timer 1435 * for timeout. port_state is identically 1436 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1437 */ 1438 lpfc_set_disctmo(vport); 1439 return; 1440 } 1441 1442 /* Start discovery by sending a FLOGI. port_state is identically 1443 * LPFC_FLOGI while waiting for FLOGI cmpl. 1444 */ 1445 if (vport->port_state != LPFC_FLOGI) { 1446 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if 1447 * bb-credit recovery is in place. 1448 */ 1449 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 1450 !(phba->link_flag & LS_LOOPBACK_MODE)) { 1451 sparam_mb = mempool_alloc(phba->mbox_mem_pool, 1452 GFP_KERNEL); 1453 if (!sparam_mb) 1454 goto sparam_out; 1455 1456 rc = lpfc_read_sparam(phba, sparam_mb, 0); 1457 if (rc) { 1458 mempool_free(sparam_mb, phba->mbox_mem_pool); 1459 goto sparam_out; 1460 } 1461 sparam_mb->vport = vport; 1462 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 1463 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT); 1464 if (rc == MBX_NOT_FINISHED) { 1465 sparam_mp = (struct lpfc_dmabuf *) 1466 sparam_mb->ctx_buf; 1467 lpfc_mbuf_free(phba, sparam_mp->virt, 1468 sparam_mp->phys); 1469 kfree(sparam_mp); 1470 sparam_mb->ctx_buf = NULL; 1471 mempool_free(sparam_mb, phba->mbox_mem_pool); 1472 goto sparam_out; 1473 } 1474 1475 phba->hba_flag |= HBA_DEFER_FLOGI; 1476 } else { 1477 lpfc_initial_flogi(vport); 1478 } 1479 } else { 1480 if (vport->fc_flag & FC_PT2PT) 1481 lpfc_disc_start(vport); 1482 } 1483 return; 1484 1485 out: 1486 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1487 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", 1488 status, vport->port_state); 1489 1490 sparam_out: 1491 lpfc_linkdown(phba); 1492 1493 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1494 "0200 CONFIG_LINK bad hba state x%x\n", 1495 vport->port_state); 1496 1497 lpfc_issue_clear_la(phba, vport); 1498 return; 1499 } 1500 1501 /** 1502 * lpfc_sli4_clear_fcf_rr_bmask 1503 * @phba: pointer to the struct lpfc_hba for this port. 1504 * This fucnction resets the round robin bit mask and clears the 1505 * fcf priority list. The list deletions are done while holding the 1506 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1507 * from the lpfc_fcf_pri record. 1508 **/ 1509 void 1510 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1511 { 1512 struct lpfc_fcf_pri *fcf_pri; 1513 struct lpfc_fcf_pri *next_fcf_pri; 1514 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1515 spin_lock_irq(&phba->hbalock); 1516 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1517 &phba->fcf.fcf_pri_list, list) { 1518 list_del_init(&fcf_pri->list); 1519 fcf_pri->fcf_rec.flag = 0; 1520 } 1521 spin_unlock_irq(&phba->hbalock); 1522 } 1523 static void 1524 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1525 { 1526 struct lpfc_vport *vport = mboxq->vport; 1527 1528 if (mboxq->u.mb.mbxStatus) { 1529 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1530 "2017 REG_FCFI mbxStatus error x%x " 1531 "HBA state x%x\n", mboxq->u.mb.mbxStatus, 1532 vport->port_state); 1533 goto fail_out; 1534 } 1535 1536 /* Start FCoE discovery by sending a FLOGI. */ 1537 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1538 /* Set the FCFI registered flag */ 1539 spin_lock_irq(&phba->hbalock); 1540 phba->fcf.fcf_flag |= FCF_REGISTERED; 1541 spin_unlock_irq(&phba->hbalock); 1542 1543 /* If there is a pending FCoE event, restart FCF table scan. */ 1544 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1545 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1546 goto fail_out; 1547 1548 /* Mark successful completion of FCF table scan */ 1549 spin_lock_irq(&phba->hbalock); 1550 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1551 phba->hba_flag &= ~FCF_TS_INPROG; 1552 if (vport->port_state != LPFC_FLOGI) { 1553 phba->hba_flag |= FCF_RR_INPROG; 1554 spin_unlock_irq(&phba->hbalock); 1555 lpfc_issue_init_vfi(vport); 1556 goto out; 1557 } 1558 spin_unlock_irq(&phba->hbalock); 1559 goto out; 1560 1561 fail_out: 1562 spin_lock_irq(&phba->hbalock); 1563 phba->hba_flag &= ~FCF_RR_INPROG; 1564 spin_unlock_irq(&phba->hbalock); 1565 out: 1566 mempool_free(mboxq, phba->mbox_mem_pool); 1567 } 1568 1569 /** 1570 * lpfc_fab_name_match - Check if the fcf fabric name match. 1571 * @fab_name: pointer to fabric name. 1572 * @new_fcf_record: pointer to fcf record. 1573 * 1574 * This routine compare the fcf record's fabric name with provided 1575 * fabric name. If the fabric name are identical this function 1576 * returns 1 else return 0. 1577 **/ 1578 static uint32_t 1579 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1580 { 1581 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1582 return 0; 1583 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1584 return 0; 1585 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1586 return 0; 1587 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1588 return 0; 1589 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1590 return 0; 1591 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1592 return 0; 1593 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1594 return 0; 1595 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1596 return 0; 1597 return 1; 1598 } 1599 1600 /** 1601 * lpfc_sw_name_match - Check if the fcf switch name match. 1602 * @sw_name: pointer to switch name. 1603 * @new_fcf_record: pointer to fcf record. 1604 * 1605 * This routine compare the fcf record's switch name with provided 1606 * switch name. If the switch name are identical this function 1607 * returns 1 else return 0. 1608 **/ 1609 static uint32_t 1610 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1611 { 1612 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1613 return 0; 1614 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1615 return 0; 1616 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1617 return 0; 1618 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1619 return 0; 1620 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1621 return 0; 1622 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1623 return 0; 1624 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1625 return 0; 1626 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1627 return 0; 1628 return 1; 1629 } 1630 1631 /** 1632 * lpfc_mac_addr_match - Check if the fcf mac address match. 1633 * @mac_addr: pointer to mac address. 1634 * @new_fcf_record: pointer to fcf record. 1635 * 1636 * This routine compare the fcf record's mac address with HBA's 1637 * FCF mac address. If the mac addresses are identical this function 1638 * returns 1 else return 0. 1639 **/ 1640 static uint32_t 1641 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1642 { 1643 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1644 return 0; 1645 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1646 return 0; 1647 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1648 return 0; 1649 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1650 return 0; 1651 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1652 return 0; 1653 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1654 return 0; 1655 return 1; 1656 } 1657 1658 static bool 1659 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1660 { 1661 return (curr_vlan_id == new_vlan_id); 1662 } 1663 1664 /** 1665 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1666 * @phba: pointer to lpfc hba data structure. 1667 * @fcf_index: Index for the lpfc_fcf_record. 1668 * @new_fcf_record: pointer to hba fcf record. 1669 * 1670 * This routine updates the driver FCF priority record from the new HBA FCF 1671 * record. The hbalock is asserted held in the code path calling this 1672 * routine. 1673 **/ 1674 static void 1675 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1676 struct fcf_record *new_fcf_record 1677 ) 1678 { 1679 struct lpfc_fcf_pri *fcf_pri; 1680 1681 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1682 fcf_pri->fcf_rec.fcf_index = fcf_index; 1683 /* FCF record priority */ 1684 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1685 1686 } 1687 1688 /** 1689 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1690 * @fcf_rec: pointer to driver fcf record. 1691 * @new_fcf_record: pointer to fcf record. 1692 * 1693 * This routine copies the FCF information from the FCF 1694 * record to lpfc_hba data structure. 1695 **/ 1696 static void 1697 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1698 struct fcf_record *new_fcf_record) 1699 { 1700 /* Fabric name */ 1701 fcf_rec->fabric_name[0] = 1702 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1703 fcf_rec->fabric_name[1] = 1704 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1705 fcf_rec->fabric_name[2] = 1706 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1707 fcf_rec->fabric_name[3] = 1708 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1709 fcf_rec->fabric_name[4] = 1710 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1711 fcf_rec->fabric_name[5] = 1712 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1713 fcf_rec->fabric_name[6] = 1714 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1715 fcf_rec->fabric_name[7] = 1716 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1717 /* Mac address */ 1718 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1719 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1720 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1721 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1722 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1723 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1724 /* FCF record index */ 1725 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1726 /* FCF record priority */ 1727 fcf_rec->priority = new_fcf_record->fip_priority; 1728 /* Switch name */ 1729 fcf_rec->switch_name[0] = 1730 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1731 fcf_rec->switch_name[1] = 1732 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1733 fcf_rec->switch_name[2] = 1734 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1735 fcf_rec->switch_name[3] = 1736 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1737 fcf_rec->switch_name[4] = 1738 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1739 fcf_rec->switch_name[5] = 1740 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1741 fcf_rec->switch_name[6] = 1742 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1743 fcf_rec->switch_name[7] = 1744 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1745 } 1746 1747 /** 1748 * __lpfc_update_fcf_record - Update driver fcf record 1749 * @phba: pointer to lpfc hba data structure. 1750 * @fcf_rec: pointer to driver fcf record. 1751 * @new_fcf_record: pointer to hba fcf record. 1752 * @addr_mode: address mode to be set to the driver fcf record. 1753 * @vlan_id: vlan tag to be set to the driver fcf record. 1754 * @flag: flag bits to be set to the driver fcf record. 1755 * 1756 * This routine updates the driver FCF record from the new HBA FCF record 1757 * together with the address mode, vlan_id, and other informations. This 1758 * routine is called with the hbalock held. 1759 **/ 1760 static void 1761 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1762 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1763 uint16_t vlan_id, uint32_t flag) 1764 { 1765 lockdep_assert_held(&phba->hbalock); 1766 1767 /* Copy the fields from the HBA's FCF record */ 1768 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1769 /* Update other fields of driver FCF record */ 1770 fcf_rec->addr_mode = addr_mode; 1771 fcf_rec->vlan_id = vlan_id; 1772 fcf_rec->flag |= (flag | RECORD_VALID); 1773 __lpfc_update_fcf_record_pri(phba, 1774 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1775 new_fcf_record); 1776 } 1777 1778 /** 1779 * lpfc_register_fcf - Register the FCF with hba. 1780 * @phba: pointer to lpfc hba data structure. 1781 * 1782 * This routine issues a register fcfi mailbox command to register 1783 * the fcf with HBA. 1784 **/ 1785 static void 1786 lpfc_register_fcf(struct lpfc_hba *phba) 1787 { 1788 LPFC_MBOXQ_t *fcf_mbxq; 1789 int rc; 1790 1791 spin_lock_irq(&phba->hbalock); 1792 /* If the FCF is not available do nothing. */ 1793 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1794 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1795 spin_unlock_irq(&phba->hbalock); 1796 return; 1797 } 1798 1799 /* The FCF is already registered, start discovery */ 1800 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1801 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1802 phba->hba_flag &= ~FCF_TS_INPROG; 1803 if (phba->pport->port_state != LPFC_FLOGI && 1804 phba->pport->fc_flag & FC_FABRIC) { 1805 phba->hba_flag |= FCF_RR_INPROG; 1806 spin_unlock_irq(&phba->hbalock); 1807 lpfc_initial_flogi(phba->pport); 1808 return; 1809 } 1810 spin_unlock_irq(&phba->hbalock); 1811 return; 1812 } 1813 spin_unlock_irq(&phba->hbalock); 1814 1815 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1816 if (!fcf_mbxq) { 1817 spin_lock_irq(&phba->hbalock); 1818 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1819 spin_unlock_irq(&phba->hbalock); 1820 return; 1821 } 1822 1823 lpfc_reg_fcfi(phba, fcf_mbxq); 1824 fcf_mbxq->vport = phba->pport; 1825 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1826 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1827 if (rc == MBX_NOT_FINISHED) { 1828 spin_lock_irq(&phba->hbalock); 1829 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1830 spin_unlock_irq(&phba->hbalock); 1831 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1832 } 1833 1834 return; 1835 } 1836 1837 /** 1838 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1839 * @phba: pointer to lpfc hba data structure. 1840 * @new_fcf_record: pointer to fcf record. 1841 * @boot_flag: Indicates if this record used by boot bios. 1842 * @addr_mode: The address mode to be used by this FCF 1843 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1844 * 1845 * This routine compare the fcf record with connect list obtained from the 1846 * config region to decide if this FCF can be used for SAN discovery. It returns 1847 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1848 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1849 * is used by boot bios and addr_mode will indicate the addressing mode to be 1850 * used for this FCF when the function returns. 1851 * If the FCF record need to be used with a particular vlan id, the vlan is 1852 * set in the vlan_id on return of the function. If not VLAN tagging need to 1853 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1854 **/ 1855 static int 1856 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1857 struct fcf_record *new_fcf_record, 1858 uint32_t *boot_flag, uint32_t *addr_mode, 1859 uint16_t *vlan_id) 1860 { 1861 struct lpfc_fcf_conn_entry *conn_entry; 1862 int i, j, fcf_vlan_id = 0; 1863 1864 /* Find the lowest VLAN id in the FCF record */ 1865 for (i = 0; i < 512; i++) { 1866 if (new_fcf_record->vlan_bitmap[i]) { 1867 fcf_vlan_id = i * 8; 1868 j = 0; 1869 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1870 j++; 1871 fcf_vlan_id++; 1872 } 1873 break; 1874 } 1875 } 1876 1877 /* FCF not valid/available or solicitation in progress */ 1878 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1879 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1880 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1881 return 0; 1882 1883 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1884 *boot_flag = 0; 1885 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1886 new_fcf_record); 1887 if (phba->valid_vlan) 1888 *vlan_id = phba->vlan_id; 1889 else 1890 *vlan_id = LPFC_FCOE_NULL_VID; 1891 return 1; 1892 } 1893 1894 /* 1895 * If there are no FCF connection table entry, driver connect to all 1896 * FCFs. 1897 */ 1898 if (list_empty(&phba->fcf_conn_rec_list)) { 1899 *boot_flag = 0; 1900 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1901 new_fcf_record); 1902 1903 /* 1904 * When there are no FCF connect entries, use driver's default 1905 * addressing mode - FPMA. 1906 */ 1907 if (*addr_mode & LPFC_FCF_FPMA) 1908 *addr_mode = LPFC_FCF_FPMA; 1909 1910 /* If FCF record report a vlan id use that vlan id */ 1911 if (fcf_vlan_id) 1912 *vlan_id = fcf_vlan_id; 1913 else 1914 *vlan_id = LPFC_FCOE_NULL_VID; 1915 return 1; 1916 } 1917 1918 list_for_each_entry(conn_entry, 1919 &phba->fcf_conn_rec_list, list) { 1920 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1921 continue; 1922 1923 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1924 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1925 new_fcf_record)) 1926 continue; 1927 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1928 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1929 new_fcf_record)) 1930 continue; 1931 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1932 /* 1933 * If the vlan bit map does not have the bit set for the 1934 * vlan id to be used, then it is not a match. 1935 */ 1936 if (!(new_fcf_record->vlan_bitmap 1937 [conn_entry->conn_rec.vlan_tag / 8] & 1938 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1939 continue; 1940 } 1941 1942 /* 1943 * If connection record does not support any addressing mode, 1944 * skip the FCF record. 1945 */ 1946 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1947 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1948 continue; 1949 1950 /* 1951 * Check if the connection record specifies a required 1952 * addressing mode. 1953 */ 1954 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1955 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1956 1957 /* 1958 * If SPMA required but FCF not support this continue. 1959 */ 1960 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1961 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1962 new_fcf_record) & LPFC_FCF_SPMA)) 1963 continue; 1964 1965 /* 1966 * If FPMA required but FCF not support this continue. 1967 */ 1968 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1969 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1970 new_fcf_record) & LPFC_FCF_FPMA)) 1971 continue; 1972 } 1973 1974 /* 1975 * This fcf record matches filtering criteria. 1976 */ 1977 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1978 *boot_flag = 1; 1979 else 1980 *boot_flag = 0; 1981 1982 /* 1983 * If user did not specify any addressing mode, or if the 1984 * preferred addressing mode specified by user is not supported 1985 * by FCF, allow fabric to pick the addressing mode. 1986 */ 1987 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1988 new_fcf_record); 1989 /* 1990 * If the user specified a required address mode, assign that 1991 * address mode 1992 */ 1993 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1994 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1995 *addr_mode = (conn_entry->conn_rec.flags & 1996 FCFCNCT_AM_SPMA) ? 1997 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1998 /* 1999 * If the user specified a preferred address mode, use the 2000 * addr mode only if FCF support the addr_mode. 2001 */ 2002 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2003 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2004 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2005 (*addr_mode & LPFC_FCF_SPMA)) 2006 *addr_mode = LPFC_FCF_SPMA; 2007 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 2008 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 2009 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 2010 (*addr_mode & LPFC_FCF_FPMA)) 2011 *addr_mode = LPFC_FCF_FPMA; 2012 2013 /* If matching connect list has a vlan id, use it */ 2014 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 2015 *vlan_id = conn_entry->conn_rec.vlan_tag; 2016 /* 2017 * If no vlan id is specified in connect list, use the vlan id 2018 * in the FCF record 2019 */ 2020 else if (fcf_vlan_id) 2021 *vlan_id = fcf_vlan_id; 2022 else 2023 *vlan_id = LPFC_FCOE_NULL_VID; 2024 2025 return 1; 2026 } 2027 2028 return 0; 2029 } 2030 2031 /** 2032 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 2033 * @phba: pointer to lpfc hba data structure. 2034 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 2035 * 2036 * This function check if there is any fcoe event pending while driver 2037 * scan FCF entries. If there is any pending event, it will restart the 2038 * FCF saning and return 1 else return 0. 2039 */ 2040 int 2041 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 2042 { 2043 /* 2044 * If the Link is up and no FCoE events while in the 2045 * FCF discovery, no need to restart FCF discovery. 2046 */ 2047 if ((phba->link_state >= LPFC_LINK_UP) && 2048 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 2049 return 0; 2050 2051 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2052 "2768 Pending link or FCF event during current " 2053 "handling of the previous event: link_state:x%x, " 2054 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 2055 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 2056 phba->fcoe_eventtag); 2057 2058 spin_lock_irq(&phba->hbalock); 2059 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 2060 spin_unlock_irq(&phba->hbalock); 2061 2062 if (phba->link_state >= LPFC_LINK_UP) { 2063 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2064 "2780 Restart FCF table scan due to " 2065 "pending FCF event:evt_tag_at_scan:x%x, " 2066 "evt_tag_current:x%x\n", 2067 phba->fcoe_eventtag_at_fcf_scan, 2068 phba->fcoe_eventtag); 2069 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 2070 } else { 2071 /* 2072 * Do not continue FCF discovery and clear FCF_TS_INPROG 2073 * flag 2074 */ 2075 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 2076 "2833 Stop FCF discovery process due to link " 2077 "state change (x%x)\n", phba->link_state); 2078 spin_lock_irq(&phba->hbalock); 2079 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 2080 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 2081 spin_unlock_irq(&phba->hbalock); 2082 } 2083 2084 /* Unregister the currently registered FCF if required */ 2085 if (unreg_fcf) { 2086 spin_lock_irq(&phba->hbalock); 2087 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 2088 spin_unlock_irq(&phba->hbalock); 2089 lpfc_sli4_unregister_fcf(phba); 2090 } 2091 return 1; 2092 } 2093 2094 /** 2095 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 2096 * @phba: pointer to lpfc hba data structure. 2097 * @fcf_cnt: number of eligible fcf record seen so far. 2098 * 2099 * This function makes an running random selection decision on FCF record to 2100 * use through a sequence of @fcf_cnt eligible FCF records with equal 2101 * probability. To perform integer manunipulation of random numbers with 2102 * size unit32_t, the lower 16 bits of the 32-bit random number returned 2103 * from prandom_u32() are taken as the random random number generated. 2104 * 2105 * Returns true when outcome is for the newly read FCF record should be 2106 * chosen; otherwise, return false when outcome is for keeping the previously 2107 * chosen FCF record. 2108 **/ 2109 static bool 2110 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 2111 { 2112 uint32_t rand_num; 2113 2114 /* Get 16-bit uniform random number */ 2115 rand_num = 0xFFFF & prandom_u32(); 2116 2117 /* Decision with probability 1/fcf_cnt */ 2118 if ((fcf_cnt * rand_num) < 0xFFFF) 2119 return true; 2120 else 2121 return false; 2122 } 2123 2124 /** 2125 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 2126 * @phba: pointer to lpfc hba data structure. 2127 * @mboxq: pointer to mailbox object. 2128 * @next_fcf_index: pointer to holder of next fcf index. 2129 * 2130 * This routine parses the non-embedded fcf mailbox command by performing the 2131 * necessarily error checking, non-embedded read FCF record mailbox command 2132 * SGE parsing, and endianness swapping. 2133 * 2134 * Returns the pointer to the new FCF record in the non-embedded mailbox 2135 * command DMA memory if successfully, other NULL. 2136 */ 2137 static struct fcf_record * 2138 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 2139 uint16_t *next_fcf_index) 2140 { 2141 void *virt_addr; 2142 struct lpfc_mbx_sge sge; 2143 struct lpfc_mbx_read_fcf_tbl *read_fcf; 2144 uint32_t shdr_status, shdr_add_status, if_type; 2145 union lpfc_sli4_cfg_shdr *shdr; 2146 struct fcf_record *new_fcf_record; 2147 2148 /* Get the first SGE entry from the non-embedded DMA memory. This 2149 * routine only uses a single SGE. 2150 */ 2151 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 2152 if (unlikely(!mboxq->sge_array)) { 2153 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2154 "2524 Failed to get the non-embedded SGE " 2155 "virtual address\n"); 2156 return NULL; 2157 } 2158 virt_addr = mboxq->sge_array->addr[0]; 2159 2160 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 2161 lpfc_sli_pcimem_bcopy(shdr, shdr, 2162 sizeof(union lpfc_sli4_cfg_shdr)); 2163 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 2164 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 2165 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 2166 if (shdr_status || shdr_add_status) { 2167 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 2168 if_type == LPFC_SLI_INTF_IF_TYPE_2) 2169 lpfc_printf_log(phba, KERN_ERR, 2170 LOG_TRACE_EVENT, 2171 "2726 READ_FCF_RECORD Indicates empty " 2172 "FCF table.\n"); 2173 else 2174 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2175 "2521 READ_FCF_RECORD mailbox failed " 2176 "with status x%x add_status x%x, " 2177 "mbx\n", shdr_status, shdr_add_status); 2178 return NULL; 2179 } 2180 2181 /* Interpreting the returned information of the FCF record */ 2182 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 2183 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 2184 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2185 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 2186 new_fcf_record = (struct fcf_record *)(virt_addr + 2187 sizeof(struct lpfc_mbx_read_fcf_tbl)); 2188 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 2189 offsetof(struct fcf_record, vlan_bitmap)); 2190 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 2191 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 2192 2193 return new_fcf_record; 2194 } 2195 2196 /** 2197 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 2198 * @phba: pointer to lpfc hba data structure. 2199 * @fcf_record: pointer to the fcf record. 2200 * @vlan_id: the lowest vlan identifier associated to this fcf record. 2201 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 2202 * 2203 * This routine logs the detailed FCF record if the LOG_FIP loggin is 2204 * enabled. 2205 **/ 2206 static void 2207 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 2208 struct fcf_record *fcf_record, 2209 uint16_t vlan_id, 2210 uint16_t next_fcf_index) 2211 { 2212 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2213 "2764 READ_FCF_RECORD:\n" 2214 "\tFCF_Index : x%x\n" 2215 "\tFCF_Avail : x%x\n" 2216 "\tFCF_Valid : x%x\n" 2217 "\tFCF_SOL : x%x\n" 2218 "\tFIP_Priority : x%x\n" 2219 "\tMAC_Provider : x%x\n" 2220 "\tLowest VLANID : x%x\n" 2221 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 2222 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2223 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 2224 "\tNext_FCF_Index: x%x\n", 2225 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 2226 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 2227 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 2228 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 2229 fcf_record->fip_priority, 2230 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 2231 vlan_id, 2232 bf_get(lpfc_fcf_record_mac_0, fcf_record), 2233 bf_get(lpfc_fcf_record_mac_1, fcf_record), 2234 bf_get(lpfc_fcf_record_mac_2, fcf_record), 2235 bf_get(lpfc_fcf_record_mac_3, fcf_record), 2236 bf_get(lpfc_fcf_record_mac_4, fcf_record), 2237 bf_get(lpfc_fcf_record_mac_5, fcf_record), 2238 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 2239 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 2240 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 2241 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 2242 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 2243 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 2244 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 2245 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 2246 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 2247 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 2248 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 2249 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 2250 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 2251 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 2252 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 2253 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 2254 next_fcf_index); 2255 } 2256 2257 /** 2258 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 2259 * @phba: pointer to lpfc hba data structure. 2260 * @fcf_rec: pointer to an existing FCF record. 2261 * @new_fcf_record: pointer to a new FCF record. 2262 * @new_vlan_id: vlan id from the new FCF record. 2263 * 2264 * This function performs matching test of a new FCF record against an existing 2265 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 2266 * will not be used as part of the FCF record matching criteria. 2267 * 2268 * Returns true if all the fields matching, otherwise returns false. 2269 */ 2270 static bool 2271 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 2272 struct lpfc_fcf_rec *fcf_rec, 2273 struct fcf_record *new_fcf_record, 2274 uint16_t new_vlan_id) 2275 { 2276 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 2277 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 2278 return false; 2279 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 2280 return false; 2281 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 2282 return false; 2283 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 2284 return false; 2285 if (fcf_rec->priority != new_fcf_record->fip_priority) 2286 return false; 2287 return true; 2288 } 2289 2290 /** 2291 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 2292 * @vport: Pointer to vport object. 2293 * @fcf_index: index to next fcf. 2294 * 2295 * This function processing the roundrobin fcf failover to next fcf index. 2296 * When this function is invoked, there will be a current fcf registered 2297 * for flogi. 2298 * Return: 0 for continue retrying flogi on currently registered fcf; 2299 * 1 for stop flogi on currently registered fcf; 2300 */ 2301 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 2302 { 2303 struct lpfc_hba *phba = vport->phba; 2304 int rc; 2305 2306 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2307 spin_lock_irq(&phba->hbalock); 2308 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2309 spin_unlock_irq(&phba->hbalock); 2310 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2311 "2872 Devloss tmo with no eligible " 2312 "FCF, unregister in-use FCF (x%x) " 2313 "and rescan FCF table\n", 2314 phba->fcf.current_rec.fcf_indx); 2315 lpfc_unregister_fcf_rescan(phba); 2316 goto stop_flogi_current_fcf; 2317 } 2318 /* Mark the end to FLOGI roundrobin failover */ 2319 phba->hba_flag &= ~FCF_RR_INPROG; 2320 /* Allow action to new fcf asynchronous event */ 2321 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2322 spin_unlock_irq(&phba->hbalock); 2323 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2324 "2865 No FCF available, stop roundrobin FCF " 2325 "failover and change port state:x%x/x%x\n", 2326 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2327 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2328 2329 if (!phba->fcf.fcf_redisc_attempted) { 2330 lpfc_unregister_fcf(phba); 2331 2332 rc = lpfc_sli4_redisc_fcf_table(phba); 2333 if (!rc) { 2334 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2335 "3195 Rediscover FCF table\n"); 2336 phba->fcf.fcf_redisc_attempted = 1; 2337 lpfc_sli4_clear_fcf_rr_bmask(phba); 2338 } else { 2339 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2340 "3196 Rediscover FCF table " 2341 "failed. Status:x%x\n", rc); 2342 } 2343 } else { 2344 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2345 "3197 Already rediscover FCF table " 2346 "attempted. No more retry\n"); 2347 } 2348 goto stop_flogi_current_fcf; 2349 } else { 2350 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2351 "2794 Try FLOGI roundrobin FCF failover to " 2352 "(x%x)\n", fcf_index); 2353 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2354 if (rc) 2355 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2356 "2761 FLOGI roundrobin FCF failover " 2357 "failed (rc:x%x) to read FCF (x%x)\n", 2358 rc, phba->fcf.current_rec.fcf_indx); 2359 else 2360 goto stop_flogi_current_fcf; 2361 } 2362 return 0; 2363 2364 stop_flogi_current_fcf: 2365 lpfc_can_disctmo(vport); 2366 return 1; 2367 } 2368 2369 /** 2370 * lpfc_sli4_fcf_pri_list_del 2371 * @phba: pointer to lpfc hba data structure. 2372 * @fcf_index: the index of the fcf record to delete 2373 * This routine checks the on list flag of the fcf_index to be deleted. 2374 * If it is one the list then it is removed from the list, and the flag 2375 * is cleared. This routine grab the hbalock before removing the fcf 2376 * record from the list. 2377 **/ 2378 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2379 uint16_t fcf_index) 2380 { 2381 struct lpfc_fcf_pri *new_fcf_pri; 2382 2383 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2385 "3058 deleting idx x%x pri x%x flg x%x\n", 2386 fcf_index, new_fcf_pri->fcf_rec.priority, 2387 new_fcf_pri->fcf_rec.flag); 2388 spin_lock_irq(&phba->hbalock); 2389 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2390 if (phba->fcf.current_rec.priority == 2391 new_fcf_pri->fcf_rec.priority) 2392 phba->fcf.eligible_fcf_cnt--; 2393 list_del_init(&new_fcf_pri->list); 2394 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2395 } 2396 spin_unlock_irq(&phba->hbalock); 2397 } 2398 2399 /** 2400 * lpfc_sli4_set_fcf_flogi_fail 2401 * @phba: pointer to lpfc hba data structure. 2402 * @fcf_index: the index of the fcf record to update 2403 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2404 * flag so the the round robin slection for the particular priority level 2405 * will try a different fcf record that does not have this bit set. 2406 * If the fcf record is re-read for any reason this flag is cleared brfore 2407 * adding it to the priority list. 2408 **/ 2409 void 2410 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2411 { 2412 struct lpfc_fcf_pri *new_fcf_pri; 2413 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2414 spin_lock_irq(&phba->hbalock); 2415 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2416 spin_unlock_irq(&phba->hbalock); 2417 } 2418 2419 /** 2420 * lpfc_sli4_fcf_pri_list_add 2421 * @phba: pointer to lpfc hba data structure. 2422 * @fcf_index: the index of the fcf record to add 2423 * @new_fcf_record: pointer to a new FCF record. 2424 * This routine checks the priority of the fcf_index to be added. 2425 * If it is a lower priority than the current head of the fcf_pri list 2426 * then it is added to the list in the right order. 2427 * If it is the same priority as the current head of the list then it 2428 * is added to the head of the list and its bit in the rr_bmask is set. 2429 * If the fcf_index to be added is of a higher priority than the current 2430 * head of the list then the rr_bmask is cleared, its bit is set in the 2431 * rr_bmask and it is added to the head of the list. 2432 * returns: 2433 * 0=success 1=failure 2434 **/ 2435 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2436 uint16_t fcf_index, 2437 struct fcf_record *new_fcf_record) 2438 { 2439 uint16_t current_fcf_pri; 2440 uint16_t last_index; 2441 struct lpfc_fcf_pri *fcf_pri; 2442 struct lpfc_fcf_pri *next_fcf_pri; 2443 struct lpfc_fcf_pri *new_fcf_pri; 2444 int ret; 2445 2446 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2447 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2448 "3059 adding idx x%x pri x%x flg x%x\n", 2449 fcf_index, new_fcf_record->fip_priority, 2450 new_fcf_pri->fcf_rec.flag); 2451 spin_lock_irq(&phba->hbalock); 2452 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2453 list_del_init(&new_fcf_pri->list); 2454 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2455 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2456 if (list_empty(&phba->fcf.fcf_pri_list)) { 2457 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2458 ret = lpfc_sli4_fcf_rr_index_set(phba, 2459 new_fcf_pri->fcf_rec.fcf_index); 2460 goto out; 2461 } 2462 2463 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2464 LPFC_SLI4_FCF_TBL_INDX_MAX); 2465 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2466 ret = 0; /* Empty rr list */ 2467 goto out; 2468 } 2469 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2470 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2471 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2472 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2473 memset(phba->fcf.fcf_rr_bmask, 0, 2474 sizeof(*phba->fcf.fcf_rr_bmask)); 2475 /* fcfs_at_this_priority_level = 1; */ 2476 phba->fcf.eligible_fcf_cnt = 1; 2477 } else 2478 /* fcfs_at_this_priority_level++; */ 2479 phba->fcf.eligible_fcf_cnt++; 2480 ret = lpfc_sli4_fcf_rr_index_set(phba, 2481 new_fcf_pri->fcf_rec.fcf_index); 2482 goto out; 2483 } 2484 2485 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2486 &phba->fcf.fcf_pri_list, list) { 2487 if (new_fcf_pri->fcf_rec.priority <= 2488 fcf_pri->fcf_rec.priority) { 2489 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2490 list_add(&new_fcf_pri->list, 2491 &phba->fcf.fcf_pri_list); 2492 else 2493 list_add(&new_fcf_pri->list, 2494 &((struct lpfc_fcf_pri *) 2495 fcf_pri->list.prev)->list); 2496 ret = 0; 2497 goto out; 2498 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2499 || new_fcf_pri->fcf_rec.priority < 2500 next_fcf_pri->fcf_rec.priority) { 2501 list_add(&new_fcf_pri->list, &fcf_pri->list); 2502 ret = 0; 2503 goto out; 2504 } 2505 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2506 continue; 2507 2508 } 2509 ret = 1; 2510 out: 2511 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2512 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2513 spin_unlock_irq(&phba->hbalock); 2514 return ret; 2515 } 2516 2517 /** 2518 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2519 * @phba: pointer to lpfc hba data structure. 2520 * @mboxq: pointer to mailbox object. 2521 * 2522 * This function iterates through all the fcf records available in 2523 * HBA and chooses the optimal FCF record for discovery. After finding 2524 * the FCF for discovery it registers the FCF record and kicks start 2525 * discovery. 2526 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2527 * use an FCF record which matches fabric name and mac address of the 2528 * currently used FCF record. 2529 * If the driver supports only one FCF, it will try to use the FCF record 2530 * used by BOOT_BIOS. 2531 */ 2532 void 2533 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2534 { 2535 struct fcf_record *new_fcf_record; 2536 uint32_t boot_flag, addr_mode; 2537 uint16_t fcf_index, next_fcf_index; 2538 struct lpfc_fcf_rec *fcf_rec = NULL; 2539 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2540 bool select_new_fcf; 2541 int rc; 2542 2543 /* If there is pending FCoE event restart FCF table scan */ 2544 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2545 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2546 return; 2547 } 2548 2549 /* Parse the FCF record from the non-embedded mailbox command */ 2550 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2551 &next_fcf_index); 2552 if (!new_fcf_record) { 2553 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2554 "2765 Mailbox command READ_FCF_RECORD " 2555 "failed to retrieve a FCF record.\n"); 2556 /* Let next new FCF event trigger fast failover */ 2557 spin_lock_irq(&phba->hbalock); 2558 phba->hba_flag &= ~FCF_TS_INPROG; 2559 spin_unlock_irq(&phba->hbalock); 2560 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2561 return; 2562 } 2563 2564 /* Check the FCF record against the connection list */ 2565 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2566 &addr_mode, &vlan_id); 2567 2568 /* Log the FCF record information if turned on */ 2569 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2570 next_fcf_index); 2571 2572 /* 2573 * If the fcf record does not match with connect list entries 2574 * read the next entry; otherwise, this is an eligible FCF 2575 * record for roundrobin FCF failover. 2576 */ 2577 if (!rc) { 2578 lpfc_sli4_fcf_pri_list_del(phba, 2579 bf_get(lpfc_fcf_record_fcf_index, 2580 new_fcf_record)); 2581 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2582 "2781 FCF (x%x) failed connection " 2583 "list check: (x%x/x%x/%x)\n", 2584 bf_get(lpfc_fcf_record_fcf_index, 2585 new_fcf_record), 2586 bf_get(lpfc_fcf_record_fcf_avail, 2587 new_fcf_record), 2588 bf_get(lpfc_fcf_record_fcf_valid, 2589 new_fcf_record), 2590 bf_get(lpfc_fcf_record_fcf_sol, 2591 new_fcf_record)); 2592 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2593 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2594 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2595 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2596 phba->fcf.current_rec.fcf_indx) { 2597 lpfc_printf_log(phba, KERN_ERR, 2598 LOG_TRACE_EVENT, 2599 "2862 FCF (x%x) matches property " 2600 "of in-use FCF (x%x)\n", 2601 bf_get(lpfc_fcf_record_fcf_index, 2602 new_fcf_record), 2603 phba->fcf.current_rec.fcf_indx); 2604 goto read_next_fcf; 2605 } 2606 /* 2607 * In case the current in-use FCF record becomes 2608 * invalid/unavailable during FCF discovery that 2609 * was not triggered by fast FCF failover process, 2610 * treat it as fast FCF failover. 2611 */ 2612 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2613 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2614 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2615 "2835 Invalid in-use FCF " 2616 "(x%x), enter FCF failover " 2617 "table scan.\n", 2618 phba->fcf.current_rec.fcf_indx); 2619 spin_lock_irq(&phba->hbalock); 2620 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2621 spin_unlock_irq(&phba->hbalock); 2622 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2623 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2624 LPFC_FCOE_FCF_GET_FIRST); 2625 return; 2626 } 2627 } 2628 goto read_next_fcf; 2629 } else { 2630 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2631 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2632 new_fcf_record); 2633 if (rc) 2634 goto read_next_fcf; 2635 } 2636 2637 /* 2638 * If this is not the first FCF discovery of the HBA, use last 2639 * FCF record for the discovery. The condition that a rescan 2640 * matches the in-use FCF record: fabric name, switch name, mac 2641 * address, and vlan_id. 2642 */ 2643 spin_lock_irq(&phba->hbalock); 2644 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2645 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2646 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2647 new_fcf_record, vlan_id)) { 2648 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2649 phba->fcf.current_rec.fcf_indx) { 2650 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2651 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2652 /* Stop FCF redisc wait timer */ 2653 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2654 phba); 2655 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2656 /* Fast failover, mark completed */ 2657 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2658 spin_unlock_irq(&phba->hbalock); 2659 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2660 "2836 New FCF matches in-use " 2661 "FCF (x%x), port_state:x%x, " 2662 "fc_flag:x%x\n", 2663 phba->fcf.current_rec.fcf_indx, 2664 phba->pport->port_state, 2665 phba->pport->fc_flag); 2666 goto out; 2667 } else 2668 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 2669 "2863 New FCF (x%x) matches " 2670 "property of in-use FCF (x%x)\n", 2671 bf_get(lpfc_fcf_record_fcf_index, 2672 new_fcf_record), 2673 phba->fcf.current_rec.fcf_indx); 2674 } 2675 /* 2676 * Read next FCF record from HBA searching for the matching 2677 * with in-use record only if not during the fast failover 2678 * period. In case of fast failover period, it shall try to 2679 * determine whether the FCF record just read should be the 2680 * next candidate. 2681 */ 2682 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2683 spin_unlock_irq(&phba->hbalock); 2684 goto read_next_fcf; 2685 } 2686 } 2687 /* 2688 * Update on failover FCF record only if it's in FCF fast-failover 2689 * period; otherwise, update on current FCF record. 2690 */ 2691 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2692 fcf_rec = &phba->fcf.failover_rec; 2693 else 2694 fcf_rec = &phba->fcf.current_rec; 2695 2696 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2697 /* 2698 * If the driver FCF record does not have boot flag 2699 * set and new hba fcf record has boot flag set, use 2700 * the new hba fcf record. 2701 */ 2702 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2703 /* Choose this FCF record */ 2704 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2705 "2837 Update current FCF record " 2706 "(x%x) with new FCF record (x%x)\n", 2707 fcf_rec->fcf_indx, 2708 bf_get(lpfc_fcf_record_fcf_index, 2709 new_fcf_record)); 2710 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2711 addr_mode, vlan_id, BOOT_ENABLE); 2712 spin_unlock_irq(&phba->hbalock); 2713 goto read_next_fcf; 2714 } 2715 /* 2716 * If the driver FCF record has boot flag set and the 2717 * new hba FCF record does not have boot flag, read 2718 * the next FCF record. 2719 */ 2720 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2721 spin_unlock_irq(&phba->hbalock); 2722 goto read_next_fcf; 2723 } 2724 /* 2725 * If the new hba FCF record has lower priority value 2726 * than the driver FCF record, use the new record. 2727 */ 2728 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2729 /* Choose the new FCF record with lower priority */ 2730 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2731 "2838 Update current FCF record " 2732 "(x%x) with new FCF record (x%x)\n", 2733 fcf_rec->fcf_indx, 2734 bf_get(lpfc_fcf_record_fcf_index, 2735 new_fcf_record)); 2736 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2737 addr_mode, vlan_id, 0); 2738 /* Reset running random FCF selection count */ 2739 phba->fcf.eligible_fcf_cnt = 1; 2740 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2741 /* Update running random FCF selection count */ 2742 phba->fcf.eligible_fcf_cnt++; 2743 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2744 phba->fcf.eligible_fcf_cnt); 2745 if (select_new_fcf) { 2746 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2747 "2839 Update current FCF record " 2748 "(x%x) with new FCF record (x%x)\n", 2749 fcf_rec->fcf_indx, 2750 bf_get(lpfc_fcf_record_fcf_index, 2751 new_fcf_record)); 2752 /* Choose the new FCF by random selection */ 2753 __lpfc_update_fcf_record(phba, fcf_rec, 2754 new_fcf_record, 2755 addr_mode, vlan_id, 0); 2756 } 2757 } 2758 spin_unlock_irq(&phba->hbalock); 2759 goto read_next_fcf; 2760 } 2761 /* 2762 * This is the first suitable FCF record, choose this record for 2763 * initial best-fit FCF. 2764 */ 2765 if (fcf_rec) { 2766 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2767 "2840 Update initial FCF candidate " 2768 "with FCF (x%x)\n", 2769 bf_get(lpfc_fcf_record_fcf_index, 2770 new_fcf_record)); 2771 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2772 addr_mode, vlan_id, (boot_flag ? 2773 BOOT_ENABLE : 0)); 2774 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2775 /* Setup initial running random FCF selection count */ 2776 phba->fcf.eligible_fcf_cnt = 1; 2777 } 2778 spin_unlock_irq(&phba->hbalock); 2779 goto read_next_fcf; 2780 2781 read_next_fcf: 2782 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2783 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2784 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2785 /* 2786 * Case of FCF fast failover scan 2787 */ 2788 2789 /* 2790 * It has not found any suitable FCF record, cancel 2791 * FCF scan inprogress, and do nothing 2792 */ 2793 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2794 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2795 "2782 No suitable FCF found: " 2796 "(x%x/x%x)\n", 2797 phba->fcoe_eventtag_at_fcf_scan, 2798 bf_get(lpfc_fcf_record_fcf_index, 2799 new_fcf_record)); 2800 spin_lock_irq(&phba->hbalock); 2801 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2802 phba->hba_flag &= ~FCF_TS_INPROG; 2803 spin_unlock_irq(&phba->hbalock); 2804 /* Unregister in-use FCF and rescan */ 2805 lpfc_printf_log(phba, KERN_INFO, 2806 LOG_FIP, 2807 "2864 On devloss tmo " 2808 "unreg in-use FCF and " 2809 "rescan FCF table\n"); 2810 lpfc_unregister_fcf_rescan(phba); 2811 return; 2812 } 2813 /* 2814 * Let next new FCF event trigger fast failover 2815 */ 2816 phba->hba_flag &= ~FCF_TS_INPROG; 2817 spin_unlock_irq(&phba->hbalock); 2818 return; 2819 } 2820 /* 2821 * It has found a suitable FCF record that is not 2822 * the same as in-use FCF record, unregister the 2823 * in-use FCF record, replace the in-use FCF record 2824 * with the new FCF record, mark FCF fast failover 2825 * completed, and then start register the new FCF 2826 * record. 2827 */ 2828 2829 /* Unregister the current in-use FCF record */ 2830 lpfc_unregister_fcf(phba); 2831 2832 /* Replace in-use record with the new record */ 2833 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2834 "2842 Replace in-use FCF (x%x) " 2835 "with failover FCF (x%x)\n", 2836 phba->fcf.current_rec.fcf_indx, 2837 phba->fcf.failover_rec.fcf_indx); 2838 memcpy(&phba->fcf.current_rec, 2839 &phba->fcf.failover_rec, 2840 sizeof(struct lpfc_fcf_rec)); 2841 /* 2842 * Mark the fast FCF failover rediscovery completed 2843 * and the start of the first round of the roundrobin 2844 * FCF failover. 2845 */ 2846 spin_lock_irq(&phba->hbalock); 2847 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2848 spin_unlock_irq(&phba->hbalock); 2849 /* Register to the new FCF record */ 2850 lpfc_register_fcf(phba); 2851 } else { 2852 /* 2853 * In case of transaction period to fast FCF failover, 2854 * do nothing when search to the end of the FCF table. 2855 */ 2856 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2857 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2858 return; 2859 2860 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2861 phba->fcf.fcf_flag & FCF_IN_USE) { 2862 /* 2863 * In case the current in-use FCF record no 2864 * longer existed during FCF discovery that 2865 * was not triggered by fast FCF failover 2866 * process, treat it as fast FCF failover. 2867 */ 2868 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2869 "2841 In-use FCF record (x%x) " 2870 "not reported, entering fast " 2871 "FCF failover mode scanning.\n", 2872 phba->fcf.current_rec.fcf_indx); 2873 spin_lock_irq(&phba->hbalock); 2874 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2875 spin_unlock_irq(&phba->hbalock); 2876 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2877 LPFC_FCOE_FCF_GET_FIRST); 2878 return; 2879 } 2880 /* Register to the new FCF record */ 2881 lpfc_register_fcf(phba); 2882 } 2883 } else 2884 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2885 return; 2886 2887 out: 2888 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2889 lpfc_register_fcf(phba); 2890 2891 return; 2892 } 2893 2894 /** 2895 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2896 * @phba: pointer to lpfc hba data structure. 2897 * @mboxq: pointer to mailbox object. 2898 * 2899 * This is the callback function for FLOGI failure roundrobin FCF failover 2900 * read FCF record mailbox command from the eligible FCF record bmask for 2901 * performing the failover. If the FCF read back is not valid/available, it 2902 * fails through to retrying FLOGI to the currently registered FCF again. 2903 * Otherwise, if the FCF read back is valid and available, it will set the 2904 * newly read FCF record to the failover FCF record, unregister currently 2905 * registered FCF record, copy the failover FCF record to the current 2906 * FCF record, and then register the current FCF record before proceeding 2907 * to trying FLOGI on the new failover FCF. 2908 */ 2909 void 2910 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2911 { 2912 struct fcf_record *new_fcf_record; 2913 uint32_t boot_flag, addr_mode; 2914 uint16_t next_fcf_index, fcf_index; 2915 uint16_t current_fcf_index; 2916 uint16_t vlan_id; 2917 int rc; 2918 2919 /* If link state is not up, stop the roundrobin failover process */ 2920 if (phba->link_state < LPFC_LINK_UP) { 2921 spin_lock_irq(&phba->hbalock); 2922 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2923 phba->hba_flag &= ~FCF_RR_INPROG; 2924 spin_unlock_irq(&phba->hbalock); 2925 goto out; 2926 } 2927 2928 /* Parse the FCF record from the non-embedded mailbox command */ 2929 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2930 &next_fcf_index); 2931 if (!new_fcf_record) { 2932 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2933 "2766 Mailbox command READ_FCF_RECORD " 2934 "failed to retrieve a FCF record. " 2935 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2936 phba->fcf.fcf_flag); 2937 lpfc_unregister_fcf_rescan(phba); 2938 goto out; 2939 } 2940 2941 /* Get the needed parameters from FCF record */ 2942 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2943 &addr_mode, &vlan_id); 2944 2945 /* Log the FCF record information if turned on */ 2946 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2947 next_fcf_index); 2948 2949 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2950 if (!rc) { 2951 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2952 "2848 Remove ineligible FCF (x%x) from " 2953 "from roundrobin bmask\n", fcf_index); 2954 /* Clear roundrobin bmask bit for ineligible FCF */ 2955 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2956 /* Perform next round of roundrobin FCF failover */ 2957 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2958 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2959 if (rc) 2960 goto out; 2961 goto error_out; 2962 } 2963 2964 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2965 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2966 "2760 Perform FLOGI roundrobin FCF failover: " 2967 "FCF (x%x) back to FCF (x%x)\n", 2968 phba->fcf.current_rec.fcf_indx, fcf_index); 2969 /* Wait 500 ms before retrying FLOGI to current FCF */ 2970 msleep(500); 2971 lpfc_issue_init_vfi(phba->pport); 2972 goto out; 2973 } 2974 2975 /* Upload new FCF record to the failover FCF record */ 2976 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2977 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2978 phba->fcf.failover_rec.fcf_indx, fcf_index); 2979 spin_lock_irq(&phba->hbalock); 2980 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2981 new_fcf_record, addr_mode, vlan_id, 2982 (boot_flag ? BOOT_ENABLE : 0)); 2983 spin_unlock_irq(&phba->hbalock); 2984 2985 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2986 2987 /* Unregister the current in-use FCF record */ 2988 lpfc_unregister_fcf(phba); 2989 2990 /* Replace in-use record with the new record */ 2991 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2992 sizeof(struct lpfc_fcf_rec)); 2993 2994 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2995 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2996 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2997 2998 error_out: 2999 lpfc_register_fcf(phba); 3000 out: 3001 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3002 } 3003 3004 /** 3005 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 3006 * @phba: pointer to lpfc hba data structure. 3007 * @mboxq: pointer to mailbox object. 3008 * 3009 * This is the callback function of read FCF record mailbox command for 3010 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 3011 * failover when a new FCF event happened. If the FCF read back is 3012 * valid/available and it passes the connection list check, it updates 3013 * the bmask for the eligible FCF record for roundrobin failover. 3014 */ 3015 void 3016 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3017 { 3018 struct fcf_record *new_fcf_record; 3019 uint32_t boot_flag, addr_mode; 3020 uint16_t fcf_index, next_fcf_index; 3021 uint16_t vlan_id; 3022 int rc; 3023 3024 /* If link state is not up, no need to proceed */ 3025 if (phba->link_state < LPFC_LINK_UP) 3026 goto out; 3027 3028 /* If FCF discovery period is over, no need to proceed */ 3029 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 3030 goto out; 3031 3032 /* Parse the FCF record from the non-embedded mailbox command */ 3033 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 3034 &next_fcf_index); 3035 if (!new_fcf_record) { 3036 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3037 "2767 Mailbox command READ_FCF_RECORD " 3038 "failed to retrieve a FCF record.\n"); 3039 goto out; 3040 } 3041 3042 /* Check the connection list for eligibility */ 3043 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 3044 &addr_mode, &vlan_id); 3045 3046 /* Log the FCF record information if turned on */ 3047 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 3048 next_fcf_index); 3049 3050 if (!rc) 3051 goto out; 3052 3053 /* Update the eligible FCF record index bmask */ 3054 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 3055 3056 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 3057 3058 out: 3059 lpfc_sli4_mbox_cmd_free(phba, mboxq); 3060 } 3061 3062 /** 3063 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 3064 * @phba: pointer to lpfc hba data structure. 3065 * @mboxq: pointer to mailbox data structure. 3066 * 3067 * This function handles completion of init vfi mailbox command. 3068 */ 3069 static void 3070 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3071 { 3072 struct lpfc_vport *vport = mboxq->vport; 3073 3074 /* 3075 * VFI not supported on interface type 0, just do the flogi 3076 * Also continue if the VFI is in use - just use the same one. 3077 */ 3078 if (mboxq->u.mb.mbxStatus && 3079 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3080 LPFC_SLI_INTF_IF_TYPE_0) && 3081 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3082 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3083 "2891 Init VFI mailbox failed 0x%x\n", 3084 mboxq->u.mb.mbxStatus); 3085 mempool_free(mboxq, phba->mbox_mem_pool); 3086 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3087 return; 3088 } 3089 3090 lpfc_initial_flogi(vport); 3091 mempool_free(mboxq, phba->mbox_mem_pool); 3092 return; 3093 } 3094 3095 /** 3096 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 3097 * @vport: pointer to lpfc_vport data structure. 3098 * 3099 * This function issue a init_vfi mailbox command to initialize the VFI and 3100 * VPI for the physical port. 3101 */ 3102 void 3103 lpfc_issue_init_vfi(struct lpfc_vport *vport) 3104 { 3105 LPFC_MBOXQ_t *mboxq; 3106 int rc; 3107 struct lpfc_hba *phba = vport->phba; 3108 3109 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3110 if (!mboxq) { 3111 lpfc_printf_vlog(vport, KERN_ERR, 3112 LOG_TRACE_EVENT, "2892 Failed to allocate " 3113 "init_vfi mailbox\n"); 3114 return; 3115 } 3116 lpfc_init_vfi(mboxq, vport); 3117 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 3118 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 3119 if (rc == MBX_NOT_FINISHED) { 3120 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3121 "2893 Failed to issue init_vfi mailbox\n"); 3122 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3123 } 3124 } 3125 3126 /** 3127 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 3128 * @phba: pointer to lpfc hba data structure. 3129 * @mboxq: pointer to mailbox data structure. 3130 * 3131 * This function handles completion of init vpi mailbox command. 3132 */ 3133 void 3134 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3135 { 3136 struct lpfc_vport *vport = mboxq->vport; 3137 struct lpfc_nodelist *ndlp; 3138 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3139 3140 if (mboxq->u.mb.mbxStatus) { 3141 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3142 "2609 Init VPI mailbox failed 0x%x\n", 3143 mboxq->u.mb.mbxStatus); 3144 mempool_free(mboxq, phba->mbox_mem_pool); 3145 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3146 return; 3147 } 3148 spin_lock_irq(shost->host_lock); 3149 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3150 spin_unlock_irq(shost->host_lock); 3151 3152 /* If this port is physical port or FDISC is done, do reg_vpi */ 3153 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 3154 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3155 if (!ndlp) 3156 lpfc_printf_vlog(vport, KERN_ERR, 3157 LOG_TRACE_EVENT, 3158 "2731 Cannot find fabric " 3159 "controller node\n"); 3160 else 3161 lpfc_register_new_vport(phba, vport, ndlp); 3162 mempool_free(mboxq, phba->mbox_mem_pool); 3163 return; 3164 } 3165 3166 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3167 lpfc_initial_fdisc(vport); 3168 else { 3169 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 3170 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3171 "2606 No NPIV Fabric support\n"); 3172 } 3173 mempool_free(mboxq, phba->mbox_mem_pool); 3174 return; 3175 } 3176 3177 /** 3178 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 3179 * @vport: pointer to lpfc_vport data structure. 3180 * 3181 * This function issue a init_vpi mailbox command to initialize 3182 * VPI for the vport. 3183 */ 3184 void 3185 lpfc_issue_init_vpi(struct lpfc_vport *vport) 3186 { 3187 LPFC_MBOXQ_t *mboxq; 3188 int rc, vpi; 3189 3190 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 3191 vpi = lpfc_alloc_vpi(vport->phba); 3192 if (!vpi) { 3193 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3194 "3303 Failed to obtain vport vpi\n"); 3195 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3196 return; 3197 } 3198 vport->vpi = vpi; 3199 } 3200 3201 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 3202 if (!mboxq) { 3203 lpfc_printf_vlog(vport, KERN_ERR, 3204 LOG_TRACE_EVENT, "2607 Failed to allocate " 3205 "init_vpi mailbox\n"); 3206 return; 3207 } 3208 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 3209 mboxq->vport = vport; 3210 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 3211 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 3212 if (rc == MBX_NOT_FINISHED) { 3213 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3214 "2608 Failed to issue init_vpi mailbox\n"); 3215 mempool_free(mboxq, vport->phba->mbox_mem_pool); 3216 } 3217 } 3218 3219 /** 3220 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 3221 * @phba: pointer to lpfc hba data structure. 3222 * 3223 * This function loops through the list of vports on the @phba and issues an 3224 * FDISC if possible. 3225 */ 3226 void 3227 lpfc_start_fdiscs(struct lpfc_hba *phba) 3228 { 3229 struct lpfc_vport **vports; 3230 int i; 3231 3232 vports = lpfc_create_vport_work_array(phba); 3233 if (vports != NULL) { 3234 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3235 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 3236 continue; 3237 /* There are no vpi for this vport */ 3238 if (vports[i]->vpi > phba->max_vpi) { 3239 lpfc_vport_set_state(vports[i], 3240 FC_VPORT_FAILED); 3241 continue; 3242 } 3243 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3244 lpfc_vport_set_state(vports[i], 3245 FC_VPORT_LINKDOWN); 3246 continue; 3247 } 3248 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 3249 lpfc_issue_init_vpi(vports[i]); 3250 continue; 3251 } 3252 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 3253 lpfc_initial_fdisc(vports[i]); 3254 else { 3255 lpfc_vport_set_state(vports[i], 3256 FC_VPORT_NO_FABRIC_SUPP); 3257 lpfc_printf_vlog(vports[i], KERN_ERR, 3258 LOG_TRACE_EVENT, 3259 "0259 No NPIV " 3260 "Fabric support\n"); 3261 } 3262 } 3263 } 3264 lpfc_destroy_vport_work_array(phba, vports); 3265 } 3266 3267 void 3268 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 3269 { 3270 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 3271 struct lpfc_vport *vport = mboxq->vport; 3272 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3273 3274 /* 3275 * VFI not supported for interface type 0, so ignore any mailbox 3276 * error (except VFI in use) and continue with the discovery. 3277 */ 3278 if (mboxq->u.mb.mbxStatus && 3279 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3280 LPFC_SLI_INTF_IF_TYPE_0) && 3281 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 3282 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3283 "2018 REG_VFI mbxStatus error x%x " 3284 "HBA state x%x\n", 3285 mboxq->u.mb.mbxStatus, vport->port_state); 3286 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3287 /* FLOGI failed, use loop map to make discovery list */ 3288 lpfc_disc_list_loopmap(vport); 3289 /* Start discovery */ 3290 lpfc_disc_start(vport); 3291 goto out_free_mem; 3292 } 3293 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3294 goto out_free_mem; 3295 } 3296 3297 /* If the VFI is already registered, there is nothing else to do 3298 * Unless this was a VFI update and we are in PT2PT mode, then 3299 * we should drop through to set the port state to ready. 3300 */ 3301 if (vport->fc_flag & FC_VFI_REGISTERED) 3302 if (!(phba->sli_rev == LPFC_SLI_REV4 && 3303 vport->fc_flag & FC_PT2PT)) 3304 goto out_free_mem; 3305 3306 /* The VPI is implicitly registered when the VFI is registered */ 3307 spin_lock_irq(shost->host_lock); 3308 vport->vpi_state |= LPFC_VPI_REGISTERED; 3309 vport->fc_flag |= FC_VFI_REGISTERED; 3310 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3311 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3312 spin_unlock_irq(shost->host_lock); 3313 3314 /* In case SLI4 FC loopback test, we are ready */ 3315 if ((phba->sli_rev == LPFC_SLI_REV4) && 3316 (phba->link_flag & LS_LOOPBACK_MODE)) { 3317 phba->link_state = LPFC_HBA_READY; 3318 goto out_free_mem; 3319 } 3320 3321 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3322 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3323 "alpacnt:%d LinkState:%x topology:%x\n", 3324 vport->port_state, vport->fc_flag, vport->fc_myDID, 3325 vport->phba->alpa_map[0], 3326 phba->link_state, phba->fc_topology); 3327 3328 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3329 /* 3330 * For private loop or for NPort pt2pt, 3331 * just start discovery and we are done. 3332 */ 3333 if ((vport->fc_flag & FC_PT2PT) || 3334 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3335 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3336 3337 /* Use loop map to make discovery list */ 3338 lpfc_disc_list_loopmap(vport); 3339 /* Start discovery */ 3340 if (vport->fc_flag & FC_PT2PT) 3341 vport->port_state = LPFC_VPORT_READY; 3342 else 3343 lpfc_disc_start(vport); 3344 } else { 3345 lpfc_start_fdiscs(phba); 3346 lpfc_do_scr_ns_plogi(phba, vport); 3347 } 3348 } 3349 3350 out_free_mem: 3351 mempool_free(mboxq, phba->mbox_mem_pool); 3352 if (dmabuf) { 3353 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3354 kfree(dmabuf); 3355 } 3356 return; 3357 } 3358 3359 static void 3360 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3361 { 3362 MAILBOX_t *mb = &pmb->u.mb; 3363 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3364 struct lpfc_vport *vport = pmb->vport; 3365 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3366 struct serv_parm *sp = &vport->fc_sparam; 3367 uint32_t ed_tov; 3368 3369 /* Check for error */ 3370 if (mb->mbxStatus) { 3371 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3372 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3373 "0319 READ_SPARAM mbxStatus error x%x " 3374 "hba state x%x>\n", 3375 mb->mbxStatus, vport->port_state); 3376 lpfc_linkdown(phba); 3377 goto out; 3378 } 3379 3380 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3381 sizeof (struct serv_parm)); 3382 3383 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3384 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3385 ed_tov = (ed_tov + 999999) / 1000000; 3386 3387 phba->fc_edtov = ed_tov; 3388 phba->fc_ratov = (2 * ed_tov) / 1000; 3389 if (phba->fc_ratov < FF_DEF_RATOV) { 3390 /* RA_TOV should be atleast 10sec for initial flogi */ 3391 phba->fc_ratov = FF_DEF_RATOV; 3392 } 3393 3394 lpfc_update_vport_wwn(vport); 3395 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3396 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3397 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3398 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3399 } 3400 3401 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3402 kfree(mp); 3403 mempool_free(pmb, phba->mbox_mem_pool); 3404 3405 /* Check if sending the FLOGI is being deferred to after we get 3406 * up to date CSPs from MBX_READ_SPARAM. 3407 */ 3408 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3409 lpfc_initial_flogi(vport); 3410 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3411 } 3412 return; 3413 3414 out: 3415 pmb->ctx_buf = NULL; 3416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3417 kfree(mp); 3418 lpfc_issue_clear_la(phba, vport); 3419 mempool_free(pmb, phba->mbox_mem_pool); 3420 return; 3421 } 3422 3423 static void 3424 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3425 { 3426 struct lpfc_vport *vport = phba->pport; 3427 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3428 struct Scsi_Host *shost; 3429 int i; 3430 struct lpfc_dmabuf *mp; 3431 int rc; 3432 struct fcf_record *fcf_record; 3433 uint32_t fc_flags = 0; 3434 unsigned long iflags; 3435 3436 spin_lock_irqsave(&phba->hbalock, iflags); 3437 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3438 3439 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3440 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3441 case LPFC_LINK_SPEED_1GHZ: 3442 case LPFC_LINK_SPEED_2GHZ: 3443 case LPFC_LINK_SPEED_4GHZ: 3444 case LPFC_LINK_SPEED_8GHZ: 3445 case LPFC_LINK_SPEED_10GHZ: 3446 case LPFC_LINK_SPEED_16GHZ: 3447 case LPFC_LINK_SPEED_32GHZ: 3448 case LPFC_LINK_SPEED_64GHZ: 3449 case LPFC_LINK_SPEED_128GHZ: 3450 case LPFC_LINK_SPEED_256GHZ: 3451 break; 3452 default: 3453 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3454 break; 3455 } 3456 } 3457 3458 if (phba->fc_topology && 3459 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3460 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3461 "3314 Toplogy changed was 0x%x is 0x%x\n", 3462 phba->fc_topology, 3463 bf_get(lpfc_mbx_read_top_topology, la)); 3464 phba->fc_topology_changed = 1; 3465 } 3466 3467 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3468 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA); 3469 3470 shost = lpfc_shost_from_vport(vport); 3471 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3472 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3473 3474 /* if npiv is enabled and this adapter supports npiv log 3475 * a message that npiv is not supported in this topology 3476 */ 3477 if (phba->cfg_enable_npiv && phba->max_vpi) 3478 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3479 "1309 Link Up Event npiv not supported in loop " 3480 "topology\n"); 3481 /* Get Loop Map information */ 3482 if (bf_get(lpfc_mbx_read_top_il, la)) 3483 fc_flags |= FC_LBIT; 3484 3485 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3486 i = la->lilpBde64.tus.f.bdeSize; 3487 3488 if (i == 0) { 3489 phba->alpa_map[0] = 0; 3490 } else { 3491 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3492 int numalpa, j, k; 3493 union { 3494 uint8_t pamap[16]; 3495 struct { 3496 uint32_t wd1; 3497 uint32_t wd2; 3498 uint32_t wd3; 3499 uint32_t wd4; 3500 } pa; 3501 } un; 3502 numalpa = phba->alpa_map[0]; 3503 j = 0; 3504 while (j < numalpa) { 3505 memset(un.pamap, 0, 16); 3506 for (k = 1; j < numalpa; k++) { 3507 un.pamap[k - 1] = 3508 phba->alpa_map[j + 1]; 3509 j++; 3510 if (k == 16) 3511 break; 3512 } 3513 /* Link Up Event ALPA map */ 3514 lpfc_printf_log(phba, 3515 KERN_WARNING, 3516 LOG_LINK_EVENT, 3517 "1304 Link Up Event " 3518 "ALPA map Data: x%x " 3519 "x%x x%x x%x\n", 3520 un.pa.wd1, un.pa.wd2, 3521 un.pa.wd3, un.pa.wd4); 3522 } 3523 } 3524 } 3525 } else { 3526 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3527 if (phba->max_vpi && phba->cfg_enable_npiv && 3528 (phba->sli_rev >= LPFC_SLI_REV3)) 3529 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3530 } 3531 vport->fc_myDID = phba->fc_pref_DID; 3532 fc_flags |= FC_LBIT; 3533 } 3534 spin_unlock_irqrestore(&phba->hbalock, iflags); 3535 3536 if (fc_flags) { 3537 spin_lock_irqsave(shost->host_lock, iflags); 3538 vport->fc_flag |= fc_flags; 3539 spin_unlock_irqrestore(shost->host_lock, iflags); 3540 } 3541 3542 lpfc_linkup(phba); 3543 sparam_mbox = NULL; 3544 3545 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3546 if (!sparam_mbox) 3547 goto out; 3548 3549 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3550 if (rc) { 3551 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3552 goto out; 3553 } 3554 sparam_mbox->vport = vport; 3555 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3556 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3557 if (rc == MBX_NOT_FINISHED) { 3558 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3559 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3560 kfree(mp); 3561 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3562 goto out; 3563 } 3564 3565 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3566 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3567 if (!cfglink_mbox) 3568 goto out; 3569 vport->port_state = LPFC_LOCAL_CFG_LINK; 3570 lpfc_config_link(phba, cfglink_mbox); 3571 cfglink_mbox->vport = vport; 3572 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3573 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3574 if (rc == MBX_NOT_FINISHED) { 3575 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3576 goto out; 3577 } 3578 } else { 3579 vport->port_state = LPFC_VPORT_UNKNOWN; 3580 /* 3581 * Add the driver's default FCF record at FCF index 0 now. This 3582 * is phase 1 implementation that support FCF index 0 and driver 3583 * defaults. 3584 */ 3585 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3586 fcf_record = kzalloc(sizeof(struct fcf_record), 3587 GFP_KERNEL); 3588 if (unlikely(!fcf_record)) { 3589 lpfc_printf_log(phba, KERN_ERR, 3590 LOG_TRACE_EVENT, 3591 "2554 Could not allocate memory for " 3592 "fcf record\n"); 3593 rc = -ENODEV; 3594 goto out; 3595 } 3596 3597 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3598 LPFC_FCOE_FCF_DEF_INDEX); 3599 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3600 if (unlikely(rc)) { 3601 lpfc_printf_log(phba, KERN_ERR, 3602 LOG_TRACE_EVENT, 3603 "2013 Could not manually add FCF " 3604 "record 0, status %d\n", rc); 3605 rc = -ENODEV; 3606 kfree(fcf_record); 3607 goto out; 3608 } 3609 kfree(fcf_record); 3610 } 3611 /* 3612 * The driver is expected to do FIP/FCF. Call the port 3613 * and get the FCF Table. 3614 */ 3615 spin_lock_irqsave(&phba->hbalock, iflags); 3616 if (phba->hba_flag & FCF_TS_INPROG) { 3617 spin_unlock_irqrestore(&phba->hbalock, iflags); 3618 return; 3619 } 3620 /* This is the initial FCF discovery scan */ 3621 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3622 spin_unlock_irqrestore(&phba->hbalock, iflags); 3623 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3624 "2778 Start FCF table scan at linkup\n"); 3625 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3626 LPFC_FCOE_FCF_GET_FIRST); 3627 if (rc) { 3628 spin_lock_irqsave(&phba->hbalock, iflags); 3629 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3630 spin_unlock_irqrestore(&phba->hbalock, iflags); 3631 goto out; 3632 } 3633 /* Reset FCF roundrobin bmask for new discovery */ 3634 lpfc_sli4_clear_fcf_rr_bmask(phba); 3635 } 3636 3637 /* Prepare for LINK up registrations */ 3638 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3639 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3640 init_utsname()->nodename); 3641 return; 3642 out: 3643 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3644 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3645 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3646 vport->port_state, sparam_mbox, cfglink_mbox); 3647 lpfc_issue_clear_la(phba, vport); 3648 return; 3649 } 3650 3651 static void 3652 lpfc_enable_la(struct lpfc_hba *phba) 3653 { 3654 uint32_t control; 3655 struct lpfc_sli *psli = &phba->sli; 3656 spin_lock_irq(&phba->hbalock); 3657 psli->sli_flag |= LPFC_PROCESS_LA; 3658 if (phba->sli_rev <= LPFC_SLI_REV3) { 3659 control = readl(phba->HCregaddr); 3660 control |= HC_LAINT_ENA; 3661 writel(control, phba->HCregaddr); 3662 readl(phba->HCregaddr); /* flush */ 3663 } 3664 spin_unlock_irq(&phba->hbalock); 3665 } 3666 3667 static void 3668 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3669 { 3670 lpfc_linkdown(phba); 3671 lpfc_enable_la(phba); 3672 lpfc_unregister_unused_fcf(phba); 3673 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3674 } 3675 3676 3677 /* 3678 * This routine handles processing a READ_TOPOLOGY mailbox 3679 * command upon completion. It is setup in the LPFC_MBOXQ 3680 * as the completion routine when the command is 3681 * handed off to the SLI layer. SLI4 only. 3682 */ 3683 void 3684 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3685 { 3686 struct lpfc_vport *vport = pmb->vport; 3687 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3688 struct lpfc_mbx_read_top *la; 3689 struct lpfc_sli_ring *pring; 3690 MAILBOX_t *mb = &pmb->u.mb; 3691 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3692 uint8_t attn_type; 3693 unsigned long iflags; 3694 3695 /* Unblock ELS traffic */ 3696 pring = lpfc_phba_elsring(phba); 3697 if (pring) 3698 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3699 3700 /* Check for error */ 3701 if (mb->mbxStatus) { 3702 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3703 "1307 READ_LA mbox error x%x state x%x\n", 3704 mb->mbxStatus, vport->port_state); 3705 lpfc_mbx_issue_link_down(phba); 3706 phba->link_state = LPFC_HBA_ERROR; 3707 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3708 } 3709 3710 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3711 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3712 3713 memcpy(&phba->alpa_map[0], mp->virt, 128); 3714 3715 spin_lock_irqsave(shost->host_lock, iflags); 3716 if (bf_get(lpfc_mbx_read_top_pb, la)) 3717 vport->fc_flag |= FC_BYPASSED_MODE; 3718 else 3719 vport->fc_flag &= ~FC_BYPASSED_MODE; 3720 spin_unlock_irqrestore(shost->host_lock, iflags); 3721 3722 if (phba->fc_eventTag <= la->eventTag) { 3723 phba->fc_stat.LinkMultiEvent++; 3724 if (attn_type == LPFC_ATT_LINK_UP) 3725 if (phba->fc_eventTag != 0) 3726 lpfc_linkdown(phba); 3727 } 3728 3729 phba->fc_eventTag = la->eventTag; 3730 if (phba->sli_rev < LPFC_SLI_REV4) { 3731 spin_lock_irqsave(&phba->hbalock, iflags); 3732 if (bf_get(lpfc_mbx_read_top_mm, la)) 3733 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3734 else 3735 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3736 spin_unlock_irqrestore(&phba->hbalock, iflags); 3737 } 3738 3739 phba->link_events++; 3740 if ((attn_type == LPFC_ATT_LINK_UP) && 3741 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3742 phba->fc_stat.LinkUp++; 3743 if (phba->link_flag & LS_LOOPBACK_MODE) { 3744 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3745 "1306 Link Up Event in loop back mode " 3746 "x%x received Data: x%x x%x x%x x%x\n", 3747 la->eventTag, phba->fc_eventTag, 3748 bf_get(lpfc_mbx_read_top_alpa_granted, 3749 la), 3750 bf_get(lpfc_mbx_read_top_link_spd, la), 3751 phba->alpa_map[0]); 3752 } else { 3753 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3754 "1303 Link Up Event x%x received " 3755 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3756 la->eventTag, phba->fc_eventTag, 3757 bf_get(lpfc_mbx_read_top_alpa_granted, 3758 la), 3759 bf_get(lpfc_mbx_read_top_link_spd, la), 3760 phba->alpa_map[0], 3761 bf_get(lpfc_mbx_read_top_mm, la), 3762 bf_get(lpfc_mbx_read_top_fa, la), 3763 phba->wait_4_mlo_maint_flg); 3764 } 3765 lpfc_mbx_process_link_up(phba, la); 3766 3767 if (phba->cmf_active_mode != LPFC_CFG_OFF) 3768 lpfc_cmf_signal_init(phba); 3769 3770 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3771 attn_type == LPFC_ATT_UNEXP_WWPN) { 3772 phba->fc_stat.LinkDown++; 3773 if (phba->link_flag & LS_LOOPBACK_MODE) 3774 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3775 "1308 Link Down Event in loop back mode " 3776 "x%x received " 3777 "Data: x%x x%x x%x\n", 3778 la->eventTag, phba->fc_eventTag, 3779 phba->pport->port_state, vport->fc_flag); 3780 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3781 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3782 "1313 Link Down Unexpected FA WWPN Event x%x " 3783 "received Data: x%x x%x x%x x%x x%x\n", 3784 la->eventTag, phba->fc_eventTag, 3785 phba->pport->port_state, vport->fc_flag, 3786 bf_get(lpfc_mbx_read_top_mm, la), 3787 bf_get(lpfc_mbx_read_top_fa, la)); 3788 else 3789 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3790 "1305 Link Down Event x%x received " 3791 "Data: x%x x%x x%x x%x x%x\n", 3792 la->eventTag, phba->fc_eventTag, 3793 phba->pport->port_state, vport->fc_flag, 3794 bf_get(lpfc_mbx_read_top_mm, la), 3795 bf_get(lpfc_mbx_read_top_fa, la)); 3796 lpfc_mbx_issue_link_down(phba); 3797 } 3798 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3799 attn_type == LPFC_ATT_LINK_UP) { 3800 if (phba->link_state != LPFC_LINK_DOWN) { 3801 phba->fc_stat.LinkDown++; 3802 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3803 "1312 Link Down Event x%x received " 3804 "Data: x%x x%x x%x\n", 3805 la->eventTag, phba->fc_eventTag, 3806 phba->pport->port_state, vport->fc_flag); 3807 lpfc_mbx_issue_link_down(phba); 3808 } else 3809 lpfc_enable_la(phba); 3810 3811 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3812 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3813 "Data: x%x x%x x%x\n", 3814 la->eventTag, phba->fc_eventTag, 3815 phba->pport->port_state, vport->fc_flag); 3816 /* 3817 * The cmnd that triggered this will be waiting for this 3818 * signal. 3819 */ 3820 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3821 if (phba->wait_4_mlo_maint_flg) { 3822 phba->wait_4_mlo_maint_flg = 0; 3823 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3824 } 3825 } 3826 3827 if ((phba->sli_rev < LPFC_SLI_REV4) && 3828 bf_get(lpfc_mbx_read_top_fa, la)) { 3829 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3830 lpfc_issue_clear_la(phba, vport); 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 3836 lpfc_mbx_cmpl_read_topology_free_mbuf: 3837 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3838 kfree(mp); 3839 mempool_free(pmb, phba->mbox_mem_pool); 3840 return; 3841 } 3842 3843 /* 3844 * This routine handles processing a REG_LOGIN mailbox 3845 * command upon completion. It is setup in the LPFC_MBOXQ 3846 * as the completion routine when the command is 3847 * handed off to the SLI layer. 3848 */ 3849 void 3850 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3851 { 3852 struct lpfc_vport *vport = pmb->vport; 3853 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3854 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 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 3893 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3894 kfree(mp); 3895 mempool_free(pmb, phba->mbox_mem_pool); 3896 /* decrement the node reference count held for this callback 3897 * function. 3898 */ 3899 lpfc_nlp_put(ndlp); 3900 3901 return; 3902 } 3903 3904 static void 3905 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3906 { 3907 MAILBOX_t *mb = &pmb->u.mb; 3908 struct lpfc_vport *vport = pmb->vport; 3909 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3910 3911 switch (mb->mbxStatus) { 3912 case 0x0011: 3913 case 0x0020: 3914 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3915 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3916 mb->mbxStatus); 3917 break; 3918 /* If VPI is busy, reset the HBA */ 3919 case 0x9700: 3920 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3921 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3922 vport->vpi, mb->mbxStatus); 3923 if (!(phba->pport->load_flag & FC_UNLOADING)) 3924 lpfc_workq_post_event(phba, NULL, NULL, 3925 LPFC_EVT_RESET_HBA); 3926 } 3927 spin_lock_irq(shost->host_lock); 3928 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3929 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3930 spin_unlock_irq(shost->host_lock); 3931 vport->unreg_vpi_cmpl = VPORT_OK; 3932 mempool_free(pmb, phba->mbox_mem_pool); 3933 lpfc_cleanup_vports_rrqs(vport, NULL); 3934 /* 3935 * This shost reference might have been taken at the beginning of 3936 * lpfc_vport_delete() 3937 */ 3938 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3939 scsi_host_put(shost); 3940 } 3941 3942 int 3943 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3944 { 3945 struct lpfc_hba *phba = vport->phba; 3946 LPFC_MBOXQ_t *mbox; 3947 int rc; 3948 3949 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3950 if (!mbox) 3951 return 1; 3952 3953 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3954 mbox->vport = vport; 3955 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3956 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3957 if (rc == MBX_NOT_FINISHED) { 3958 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 3959 "1800 Could not issue unreg_vpi\n"); 3960 mempool_free(mbox, phba->mbox_mem_pool); 3961 vport->unreg_vpi_cmpl = VPORT_ERROR; 3962 return rc; 3963 } 3964 return 0; 3965 } 3966 3967 static void 3968 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3969 { 3970 struct lpfc_vport *vport = pmb->vport; 3971 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3972 MAILBOX_t *mb = &pmb->u.mb; 3973 3974 switch (mb->mbxStatus) { 3975 case 0x0011: 3976 case 0x9601: 3977 case 0x9602: 3978 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3979 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3980 mb->mbxStatus); 3981 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3982 spin_lock_irq(shost->host_lock); 3983 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3984 spin_unlock_irq(shost->host_lock); 3985 vport->fc_myDID = 0; 3986 3987 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3988 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3989 if (phba->nvmet_support) 3990 lpfc_nvmet_update_targetport(phba); 3991 else 3992 lpfc_nvme_update_localport(vport); 3993 } 3994 goto out; 3995 } 3996 3997 spin_lock_irq(shost->host_lock); 3998 vport->vpi_state |= LPFC_VPI_REGISTERED; 3999 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 4000 spin_unlock_irq(shost->host_lock); 4001 vport->num_disc_nodes = 0; 4002 /* go thru NPR list and issue ELS PLOGIs */ 4003 if (vport->fc_npr_cnt) 4004 lpfc_els_disc_plogi(vport); 4005 4006 if (!vport->num_disc_nodes) { 4007 spin_lock_irq(shost->host_lock); 4008 vport->fc_flag &= ~FC_NDISC_ACTIVE; 4009 spin_unlock_irq(shost->host_lock); 4010 lpfc_can_disctmo(vport); 4011 } 4012 vport->port_state = LPFC_VPORT_READY; 4013 4014 out: 4015 mempool_free(pmb, phba->mbox_mem_pool); 4016 return; 4017 } 4018 4019 /** 4020 * lpfc_create_static_vport - Read HBA config region to create static vports. 4021 * @phba: pointer to lpfc hba data structure. 4022 * 4023 * This routine issue a DUMP mailbox command for config region 22 to get 4024 * the list of static vports to be created. The function create vports 4025 * based on the information returned from the HBA. 4026 **/ 4027 void 4028 lpfc_create_static_vport(struct lpfc_hba *phba) 4029 { 4030 LPFC_MBOXQ_t *pmb = NULL; 4031 MAILBOX_t *mb; 4032 struct static_vport_info *vport_info; 4033 int mbx_wait_rc = 0, i; 4034 struct fc_vport_identifiers vport_id; 4035 struct fc_vport *new_fc_vport; 4036 struct Scsi_Host *shost; 4037 struct lpfc_vport *vport; 4038 uint16_t offset = 0; 4039 uint8_t *vport_buff; 4040 struct lpfc_dmabuf *mp; 4041 uint32_t byte_count = 0; 4042 4043 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4044 if (!pmb) { 4045 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4046 "0542 lpfc_create_static_vport failed to" 4047 " allocate mailbox memory\n"); 4048 return; 4049 } 4050 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 4051 mb = &pmb->u.mb; 4052 4053 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 4054 if (!vport_info) { 4055 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4056 "0543 lpfc_create_static_vport failed to" 4057 " allocate vport_info\n"); 4058 mempool_free(pmb, phba->mbox_mem_pool); 4059 return; 4060 } 4061 4062 vport_buff = (uint8_t *) vport_info; 4063 do { 4064 /* free dma buffer from previous round */ 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 } 4070 if (lpfc_dump_static_vport(phba, pmb, offset)) 4071 goto out; 4072 4073 pmb->vport = phba->pport; 4074 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 4075 LPFC_MBOX_TMO); 4076 4077 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 4078 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4079 "0544 lpfc_create_static_vport failed to" 4080 " issue dump mailbox command ret 0x%x " 4081 "status 0x%x\n", 4082 mbx_wait_rc, mb->mbxStatus); 4083 goto out; 4084 } 4085 4086 if (phba->sli_rev == LPFC_SLI_REV4) { 4087 byte_count = pmb->u.mqe.un.mb_words[5]; 4088 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 4089 if (byte_count > sizeof(struct static_vport_info) - 4090 offset) 4091 byte_count = sizeof(struct static_vport_info) 4092 - offset; 4093 memcpy(vport_buff + offset, mp->virt, byte_count); 4094 offset += byte_count; 4095 } else { 4096 if (mb->un.varDmp.word_cnt > 4097 sizeof(struct static_vport_info) - offset) 4098 mb->un.varDmp.word_cnt = 4099 sizeof(struct static_vport_info) 4100 - offset; 4101 byte_count = mb->un.varDmp.word_cnt; 4102 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 4103 vport_buff + offset, 4104 byte_count); 4105 4106 offset += byte_count; 4107 } 4108 4109 } while (byte_count && 4110 offset < sizeof(struct static_vport_info)); 4111 4112 4113 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 4114 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 4115 != VPORT_INFO_REV)) { 4116 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 4117 "0545 lpfc_create_static_vport bad" 4118 " information header 0x%x 0x%x\n", 4119 le32_to_cpu(vport_info->signature), 4120 le32_to_cpu(vport_info->rev) & 4121 VPORT_INFO_REV_MASK); 4122 4123 goto out; 4124 } 4125 4126 shost = lpfc_shost_from_vport(phba->pport); 4127 4128 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 4129 memset(&vport_id, 0, sizeof(vport_id)); 4130 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 4131 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 4132 if (!vport_id.port_name || !vport_id.node_name) 4133 continue; 4134 4135 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 4136 vport_id.vport_type = FC_PORTTYPE_NPIV; 4137 vport_id.disable = false; 4138 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 4139 4140 if (!new_fc_vport) { 4141 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4142 "0546 lpfc_create_static_vport failed to" 4143 " create vport\n"); 4144 continue; 4145 } 4146 4147 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 4148 vport->vport_flag |= STATIC_VPORT; 4149 } 4150 4151 out: 4152 kfree(vport_info); 4153 if (mbx_wait_rc != MBX_TIMEOUT) { 4154 if (pmb->ctx_buf) { 4155 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 4156 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4157 kfree(mp); 4158 } 4159 mempool_free(pmb, phba->mbox_mem_pool); 4160 } 4161 4162 return; 4163 } 4164 4165 /* 4166 * This routine handles processing a Fabric REG_LOGIN mailbox 4167 * command upon completion. It is setup in the LPFC_MBOXQ 4168 * as the completion routine when the command is 4169 * handed off to the SLI layer. 4170 */ 4171 void 4172 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4173 { 4174 struct lpfc_vport *vport = pmb->vport; 4175 MAILBOX_t *mb = &pmb->u.mb; 4176 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4177 struct lpfc_nodelist *ndlp; 4178 struct Scsi_Host *shost; 4179 4180 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4181 pmb->ctx_ndlp = NULL; 4182 pmb->ctx_buf = NULL; 4183 4184 if (mb->mbxStatus) { 4185 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4186 "0258 Register Fabric login error: 0x%x\n", 4187 mb->mbxStatus); 4188 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4189 kfree(mp); 4190 mempool_free(pmb, phba->mbox_mem_pool); 4191 4192 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4193 /* FLOGI failed, use loop map to make discovery list */ 4194 lpfc_disc_list_loopmap(vport); 4195 4196 /* Start discovery */ 4197 lpfc_disc_start(vport); 4198 /* Decrement the reference count to ndlp after the 4199 * reference to the ndlp are done. 4200 */ 4201 lpfc_nlp_put(ndlp); 4202 return; 4203 } 4204 4205 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4206 /* Decrement the reference count to ndlp after the reference 4207 * to the ndlp are done. 4208 */ 4209 lpfc_nlp_put(ndlp); 4210 return; 4211 } 4212 4213 if (phba->sli_rev < LPFC_SLI_REV4) 4214 ndlp->nlp_rpi = mb->un.varWords[0]; 4215 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4216 ndlp->nlp_type |= NLP_FABRIC; 4217 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4218 4219 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 4220 /* when physical port receive logo donot start 4221 * vport discovery */ 4222 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 4223 lpfc_start_fdiscs(phba); 4224 else { 4225 shost = lpfc_shost_from_vport(vport); 4226 spin_lock_irq(shost->host_lock); 4227 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 4228 spin_unlock_irq(shost->host_lock); 4229 } 4230 lpfc_do_scr_ns_plogi(phba, vport); 4231 } 4232 4233 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4234 kfree(mp); 4235 mempool_free(pmb, phba->mbox_mem_pool); 4236 4237 /* Drop the reference count from the mbox at the end after 4238 * all the current reference to the ndlp have been done. 4239 */ 4240 lpfc_nlp_put(ndlp); 4241 return; 4242 } 4243 4244 /* 4245 * This routine will issue a GID_FT for each FC4 Type supported 4246 * by the driver. ALL GID_FTs must complete before discovery is started. 4247 */ 4248 int 4249 lpfc_issue_gidft(struct lpfc_vport *vport) 4250 { 4251 /* Good status, issue CT Request to NameServer */ 4252 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4253 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 4254 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 4255 /* Cannot issue NameServer FCP Query, so finish up 4256 * discovery 4257 */ 4258 lpfc_printf_vlog(vport, KERN_ERR, 4259 LOG_TRACE_EVENT, 4260 "0604 %s FC TYPE %x %s\n", 4261 "Failed to issue GID_FT to ", 4262 FC_TYPE_FCP, 4263 "Finishing discovery."); 4264 return 0; 4265 } 4266 vport->gidft_inp++; 4267 } 4268 4269 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4270 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 4271 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 4272 /* Cannot issue NameServer NVME Query, so finish up 4273 * discovery 4274 */ 4275 lpfc_printf_vlog(vport, KERN_ERR, 4276 LOG_TRACE_EVENT, 4277 "0605 %s FC_TYPE %x %s %d\n", 4278 "Failed to issue GID_FT to ", 4279 FC_TYPE_NVME, 4280 "Finishing discovery: gidftinp ", 4281 vport->gidft_inp); 4282 if (vport->gidft_inp == 0) 4283 return 0; 4284 } else 4285 vport->gidft_inp++; 4286 } 4287 return vport->gidft_inp; 4288 } 4289 4290 /** 4291 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 4292 * @vport: The virtual port for which this call is being executed. 4293 * 4294 * This routine will issue a GID_PT to get a list of all N_Ports 4295 * 4296 * Return value : 4297 * 0 - Failure to issue a GID_PT 4298 * 1 - GID_PT issued 4299 **/ 4300 int 4301 lpfc_issue_gidpt(struct lpfc_vport *vport) 4302 { 4303 /* Good status, issue CT Request to NameServer */ 4304 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4305 /* Cannot issue NameServer FCP Query, so finish up 4306 * discovery 4307 */ 4308 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4309 "0606 %s Port TYPE %x %s\n", 4310 "Failed to issue GID_PT to ", 4311 GID_PT_N_PORT, 4312 "Finishing discovery."); 4313 return 0; 4314 } 4315 vport->gidft_inp++; 4316 return 1; 4317 } 4318 4319 /* 4320 * This routine handles processing a NameServer REG_LOGIN mailbox 4321 * command upon completion. It is setup in the LPFC_MBOXQ 4322 * as the completion routine when the command is 4323 * handed off to the SLI layer. 4324 */ 4325 void 4326 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4327 { 4328 MAILBOX_t *mb = &pmb->u.mb; 4329 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4330 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4331 struct lpfc_vport *vport = pmb->vport; 4332 int rc; 4333 4334 pmb->ctx_buf = NULL; 4335 pmb->ctx_ndlp = NULL; 4336 vport->gidft_inp = 0; 4337 4338 if (mb->mbxStatus) { 4339 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4340 "0260 Register NameServer error: 0x%x\n", 4341 mb->mbxStatus); 4342 4343 out: 4344 /* decrement the node reference count held for this 4345 * callback function. 4346 */ 4347 lpfc_nlp_put(ndlp); 4348 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4349 kfree(mp); 4350 mempool_free(pmb, phba->mbox_mem_pool); 4351 4352 /* If the node is not registered with the scsi or nvme 4353 * transport, remove the fabric node. The failed reg_login 4354 * is terminal. 4355 */ 4356 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { 4357 spin_lock_irq(&ndlp->lock); 4358 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 4359 spin_unlock_irq(&ndlp->lock); 4360 lpfc_nlp_not_used(ndlp); 4361 } 4362 4363 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4364 /* 4365 * RegLogin failed, use loop map to make discovery 4366 * list 4367 */ 4368 lpfc_disc_list_loopmap(vport); 4369 4370 /* Start discovery */ 4371 lpfc_disc_start(vport); 4372 return; 4373 } 4374 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4375 return; 4376 } 4377 4378 if (phba->sli_rev < LPFC_SLI_REV4) 4379 ndlp->nlp_rpi = mb->un.varWords[0]; 4380 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4381 ndlp->nlp_type |= NLP_FABRIC; 4382 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4383 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4384 "0003 rpi:%x DID:%x flg:%x %d x%px\n", 4385 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4386 kref_read(&ndlp->kref), 4387 ndlp); 4388 4389 if (vport->port_state < LPFC_VPORT_READY) { 4390 /* Link up discovery requires Fabric registration. */ 4391 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4392 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4393 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4394 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4395 4396 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4397 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4398 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4399 4400 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4401 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4402 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4403 FC_TYPE_NVME); 4404 4405 /* Issue SCR just before NameServer GID_FT Query */ 4406 lpfc_issue_els_scr(vport, 0); 4407 4408 /* Link was bounced or a Fabric LOGO occurred. Start EDC 4409 * with initial FW values provided the congestion mode is 4410 * not off. Note that signals may or may not be supported 4411 * by the adapter but FPIN is provided by default for 1 4412 * or both missing signals support. 4413 */ 4414 if (phba->cmf_active_mode != LPFC_CFG_OFF) { 4415 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; 4416 phba->cgn_reg_signal = phba->cgn_init_reg_signal; 4417 rc = lpfc_issue_els_edc(vport, 0); 4418 lpfc_printf_log(phba, KERN_INFO, 4419 LOG_INIT | LOG_ELS | LOG_DISCOVERY, 4420 "4220 EDC issue error x%x, Data: x%x\n", 4421 rc, phba->cgn_init_reg_signal); 4422 } else { 4423 lpfc_issue_els_rdf(vport, 0); 4424 } 4425 } 4426 4427 vport->fc_ns_retry = 0; 4428 if (lpfc_issue_gidft(vport) == 0) 4429 goto out; 4430 4431 /* 4432 * At this point in time we may need to wait for multiple 4433 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4434 * 4435 * decrement the node reference count held for this 4436 * callback function. 4437 */ 4438 lpfc_nlp_put(ndlp); 4439 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4440 kfree(mp); 4441 mempool_free(pmb, phba->mbox_mem_pool); 4442 4443 return; 4444 } 4445 4446 /* 4447 * This routine handles processing a Fabric Controller REG_LOGIN mailbox 4448 * command upon completion. It is setup in the LPFC_MBOXQ 4449 * as the completion routine when the command is handed off to the SLI layer. 4450 */ 4451 void 4452 lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4453 { 4454 struct lpfc_vport *vport = pmb->vport; 4455 MAILBOX_t *mb = &pmb->u.mb; 4456 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4457 struct lpfc_nodelist *ndlp; 4458 4459 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4460 pmb->ctx_ndlp = NULL; 4461 pmb->ctx_buf = NULL; 4462 4463 if (mb->mbxStatus) { 4464 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4465 "0933 %s: Register FC login error: 0x%x\n", 4466 __func__, mb->mbxStatus); 4467 goto out; 4468 } 4469 4470 lpfc_check_nlp_post_devloss(vport, ndlp); 4471 4472 if (phba->sli_rev < LPFC_SLI_REV4) 4473 ndlp->nlp_rpi = mb->un.varWords[0]; 4474 4475 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4476 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n", 4477 __func__, ndlp->nlp_DID, ndlp->nlp_rpi, 4478 ndlp->nlp_state); 4479 4480 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4481 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 4482 ndlp->nlp_type |= NLP_FABRIC; 4483 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4484 4485 out: 4486 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4487 kfree(mp); 4488 mempool_free(pmb, phba->mbox_mem_pool); 4489 4490 /* Drop the reference count from the mbox at the end after 4491 * all the current reference to the ndlp have been done. 4492 */ 4493 lpfc_nlp_put(ndlp); 4494 } 4495 4496 static void 4497 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4498 { 4499 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4500 struct fc_rport *rport; 4501 struct lpfc_rport_data *rdata; 4502 struct fc_rport_identifiers rport_ids; 4503 struct lpfc_hba *phba = vport->phba; 4504 unsigned long flags; 4505 4506 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4507 return; 4508 4509 /* Remote port has reappeared. Re-register w/ FC transport */ 4510 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4511 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4512 rport_ids.port_id = ndlp->nlp_DID; 4513 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4514 4515 4516 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4517 "rport add: did:x%x flg:x%x type x%x", 4518 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4519 4520 /* Don't add the remote port if unloading. */ 4521 if (vport->load_flag & FC_UNLOADING) 4522 return; 4523 4524 /* 4525 * Disassociate any older association between this ndlp and rport 4526 */ 4527 if (ndlp->rport) { 4528 rdata = ndlp->rport->dd_data; 4529 rdata->pnode = NULL; 4530 } 4531 4532 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4533 if (!rport) { 4534 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4535 "Warning: fc_remote_port_add failed\n"); 4536 return; 4537 } 4538 4539 /* Successful port add. Complete initializing node data */ 4540 rport->maxframe_size = ndlp->nlp_maxframe; 4541 rport->supported_classes = ndlp->nlp_class_sup; 4542 rdata = rport->dd_data; 4543 rdata->pnode = lpfc_nlp_get(ndlp); 4544 if (!rdata->pnode) { 4545 dev_warn(&phba->pcidev->dev, 4546 "Warning - node ref failed. Unreg rport\n"); 4547 fc_remote_port_delete(rport); 4548 ndlp->rport = NULL; 4549 return; 4550 } 4551 4552 spin_lock_irqsave(&ndlp->lock, flags); 4553 ndlp->fc4_xpt_flags |= SCSI_XPT_REGD; 4554 spin_unlock_irqrestore(&ndlp->lock, flags); 4555 4556 if (ndlp->nlp_type & NLP_FCP_TARGET) 4557 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4558 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4559 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4560 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4561 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4562 if (ndlp->nlp_type & NLP_NVME_TARGET) 4563 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4564 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4565 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4566 4567 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4568 fc_remote_port_rolechg(rport, rport_ids.roles); 4569 4570 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4571 "3183 %s rport x%px DID x%x, role x%x refcnt %d\n", 4572 __func__, rport, rport->port_id, rport->roles, 4573 kref_read(&ndlp->kref)); 4574 4575 if ((rport->scsi_target_id != -1) && 4576 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4577 ndlp->nlp_sid = rport->scsi_target_id; 4578 } 4579 4580 return; 4581 } 4582 4583 static void 4584 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4585 { 4586 struct fc_rport *rport = ndlp->rport; 4587 struct lpfc_vport *vport = ndlp->vport; 4588 4589 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4590 return; 4591 4592 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4593 "rport delete: did:x%x flg:x%x type x%x", 4594 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4595 4596 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4597 "3184 rport unregister x%06x, rport x%px " 4598 "xptflg x%x refcnt %d\n", 4599 ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags, 4600 kref_read(&ndlp->kref)); 4601 4602 fc_remote_port_delete(rport); 4603 lpfc_nlp_put(ndlp); 4604 } 4605 4606 static void 4607 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4608 { 4609 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4610 unsigned long iflags; 4611 4612 spin_lock_irqsave(shost->host_lock, iflags); 4613 switch (state) { 4614 case NLP_STE_UNUSED_NODE: 4615 vport->fc_unused_cnt += count; 4616 break; 4617 case NLP_STE_PLOGI_ISSUE: 4618 vport->fc_plogi_cnt += count; 4619 break; 4620 case NLP_STE_ADISC_ISSUE: 4621 vport->fc_adisc_cnt += count; 4622 break; 4623 case NLP_STE_REG_LOGIN_ISSUE: 4624 vport->fc_reglogin_cnt += count; 4625 break; 4626 case NLP_STE_PRLI_ISSUE: 4627 vport->fc_prli_cnt += count; 4628 break; 4629 case NLP_STE_UNMAPPED_NODE: 4630 vport->fc_unmap_cnt += count; 4631 break; 4632 case NLP_STE_MAPPED_NODE: 4633 vport->fc_map_cnt += count; 4634 break; 4635 case NLP_STE_NPR_NODE: 4636 if (vport->fc_npr_cnt == 0 && count == -1) 4637 vport->fc_npr_cnt = 0; 4638 else 4639 vport->fc_npr_cnt += count; 4640 break; 4641 } 4642 spin_unlock_irqrestore(shost->host_lock, iflags); 4643 } 4644 4645 /* Register a node with backend if not already done */ 4646 void 4647 lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4648 { 4649 unsigned long iflags; 4650 4651 lpfc_check_nlp_post_devloss(vport, ndlp); 4652 4653 spin_lock_irqsave(&ndlp->lock, iflags); 4654 if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) { 4655 /* Already registered with backend, trigger rescan */ 4656 spin_unlock_irqrestore(&ndlp->lock, iflags); 4657 4658 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD && 4659 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) { 4660 lpfc_nvme_rescan_port(vport, ndlp); 4661 } 4662 return; 4663 } 4664 4665 ndlp->fc4_xpt_flags |= NLP_XPT_REGD; 4666 spin_unlock_irqrestore(&ndlp->lock, iflags); 4667 4668 if (lpfc_valid_xpt_node(ndlp)) { 4669 vport->phba->nport_event_cnt++; 4670 /* 4671 * Tell the fc transport about the port, if we haven't 4672 * already. If we have, and it's a scsi entity, be 4673 */ 4674 lpfc_register_remote_port(vport, ndlp); 4675 } 4676 4677 /* We are done if we do not have any NVME remote node */ 4678 if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME)) 4679 return; 4680 4681 /* Notify the NVME transport of this new rport. */ 4682 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4683 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4684 if (vport->phba->nvmet_support == 0) { 4685 /* Register this rport with the transport. 4686 * Only NVME Target Rports are registered with 4687 * the transport. 4688 */ 4689 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4690 vport->phba->nport_event_cnt++; 4691 lpfc_nvme_register_port(vport, ndlp); 4692 } 4693 } else { 4694 /* Just take an NDLP ref count since the 4695 * target does not register rports. 4696 */ 4697 lpfc_nlp_get(ndlp); 4698 } 4699 } 4700 } 4701 4702 /* Unregister a node with backend if not already done */ 4703 void 4704 lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4705 { 4706 unsigned long iflags; 4707 4708 spin_lock_irqsave(&ndlp->lock, iflags); 4709 if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) { 4710 spin_unlock_irqrestore(&ndlp->lock, iflags); 4711 return; 4712 } 4713 4714 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; 4715 spin_unlock_irqrestore(&ndlp->lock, iflags); 4716 4717 if (ndlp->rport && 4718 ndlp->fc4_xpt_flags & SCSI_XPT_REGD) { 4719 vport->phba->nport_event_cnt++; 4720 lpfc_unregister_remote_port(ndlp); 4721 } 4722 4723 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) { 4724 vport->phba->nport_event_cnt++; 4725 if (vport->phba->nvmet_support == 0) { 4726 /* Start devloss if target. */ 4727 if (ndlp->nlp_type & NLP_NVME_TARGET) 4728 lpfc_nvme_unregister_port(vport, ndlp); 4729 } else { 4730 /* NVMET has no upcall. */ 4731 lpfc_nlp_put(ndlp); 4732 } 4733 } 4734 4735 } 4736 4737 /* 4738 * Adisc state change handling 4739 */ 4740 static void 4741 lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4742 int new_state) 4743 { 4744 switch (new_state) { 4745 /* 4746 * Any state to ADISC_ISSUE 4747 * Do nothing, adisc cmpl handling will trigger state changes 4748 */ 4749 case NLP_STE_ADISC_ISSUE: 4750 break; 4751 4752 /* 4753 * ADISC_ISSUE to mapped states 4754 * Trigger a registration with backend, it will be nop if 4755 * already registered 4756 */ 4757 case NLP_STE_UNMAPPED_NODE: 4758 ndlp->nlp_type |= NLP_FC_NODE; 4759 fallthrough; 4760 case NLP_STE_MAPPED_NODE: 4761 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4762 lpfc_nlp_reg_node(vport, ndlp); 4763 break; 4764 4765 /* 4766 * ADISC_ISSUE to non-mapped states 4767 * We are moving from ADISC_ISSUE to a non-mapped state because 4768 * ADISC failed, we would have skipped unregistering with 4769 * backend, attempt it now 4770 */ 4771 case NLP_STE_NPR_NODE: 4772 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4773 fallthrough; 4774 default: 4775 lpfc_nlp_unreg_node(vport, ndlp); 4776 break; 4777 } 4778 4779 } 4780 4781 static void 4782 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4783 int old_state, int new_state) 4784 { 4785 /* Trap ADISC changes here */ 4786 if (new_state == NLP_STE_ADISC_ISSUE || 4787 old_state == NLP_STE_ADISC_ISSUE) { 4788 lpfc_handle_adisc_state(vport, ndlp, new_state); 4789 return; 4790 } 4791 4792 if (new_state == NLP_STE_UNMAPPED_NODE) { 4793 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4794 ndlp->nlp_type |= NLP_FC_NODE; 4795 } 4796 if (new_state == NLP_STE_MAPPED_NODE) 4797 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4798 if (new_state == NLP_STE_NPR_NODE) 4799 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4800 4801 /* Reg/Unreg for FCP and NVME Transport interface */ 4802 if ((old_state == NLP_STE_MAPPED_NODE || 4803 old_state == NLP_STE_UNMAPPED_NODE)) { 4804 /* For nodes marked for ADISC, Handle unreg in ADISC cmpl 4805 * if linkup. In linkdown do unreg_node 4806 */ 4807 if (!(ndlp->nlp_flag & NLP_NPR_ADISC) || 4808 !lpfc_is_link_up(vport->phba)) 4809 lpfc_nlp_unreg_node(vport, ndlp); 4810 } 4811 4812 if (new_state == NLP_STE_MAPPED_NODE || 4813 new_state == NLP_STE_UNMAPPED_NODE) 4814 lpfc_nlp_reg_node(vport, ndlp); 4815 4816 if ((new_state == NLP_STE_MAPPED_NODE) && 4817 (vport->stat_data_enabled)) { 4818 /* 4819 * A new target is discovered, if there is no buffer for 4820 * statistical data collection allocate buffer. 4821 */ 4822 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4823 sizeof(struct lpfc_scsicmd_bkt), 4824 GFP_KERNEL); 4825 4826 if (!ndlp->lat_data) 4827 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 4828 "0286 lpfc_nlp_state_cleanup failed to " 4829 "allocate statistical data buffer DID " 4830 "0x%x\n", ndlp->nlp_DID); 4831 } 4832 /* 4833 * If the node just added to Mapped list was an FCP target, 4834 * but the remote port registration failed or assigned a target 4835 * id outside the presentable range - move the node to the 4836 * Unmapped List. 4837 */ 4838 if ((new_state == NLP_STE_MAPPED_NODE) && 4839 (ndlp->nlp_type & NLP_FCP_TARGET) && 4840 (!ndlp->rport || 4841 ndlp->rport->scsi_target_id == -1 || 4842 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4843 spin_lock_irq(&ndlp->lock); 4844 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4845 spin_unlock_irq(&ndlp->lock); 4846 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4847 } 4848 } 4849 4850 static char * 4851 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4852 { 4853 static char *states[] = { 4854 [NLP_STE_UNUSED_NODE] = "UNUSED", 4855 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4856 [NLP_STE_ADISC_ISSUE] = "ADISC", 4857 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4858 [NLP_STE_PRLI_ISSUE] = "PRLI", 4859 [NLP_STE_LOGO_ISSUE] = "LOGO", 4860 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4861 [NLP_STE_MAPPED_NODE] = "MAPPED", 4862 [NLP_STE_NPR_NODE] = "NPR", 4863 }; 4864 4865 if (state < NLP_STE_MAX_STATE && states[state]) 4866 strlcpy(buffer, states[state], size); 4867 else 4868 snprintf(buffer, size, "unknown (%d)", state); 4869 return buffer; 4870 } 4871 4872 void 4873 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4874 int state) 4875 { 4876 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4877 int old_state = ndlp->nlp_state; 4878 int node_dropped = ndlp->nlp_flag & NLP_DROPPED; 4879 char name1[16], name2[16]; 4880 4881 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4882 "0904 NPort state transition x%06x, %s -> %s\n", 4883 ndlp->nlp_DID, 4884 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4885 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4886 4887 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4888 "node statechg did:x%x old:%d ste:%d", 4889 ndlp->nlp_DID, old_state, state); 4890 4891 if (node_dropped && old_state == NLP_STE_UNUSED_NODE && 4892 state != NLP_STE_UNUSED_NODE) { 4893 ndlp->nlp_flag &= ~NLP_DROPPED; 4894 lpfc_nlp_get(ndlp); 4895 } 4896 4897 if (old_state == NLP_STE_NPR_NODE && 4898 state != NLP_STE_NPR_NODE) 4899 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4900 if (old_state == NLP_STE_UNMAPPED_NODE) { 4901 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4902 ndlp->nlp_type &= ~NLP_FC_NODE; 4903 } 4904 4905 if (list_empty(&ndlp->nlp_listp)) { 4906 spin_lock_irq(shost->host_lock); 4907 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4908 spin_unlock_irq(shost->host_lock); 4909 } else if (old_state) 4910 lpfc_nlp_counters(vport, old_state, -1); 4911 4912 ndlp->nlp_state = state; 4913 lpfc_nlp_counters(vport, state, 1); 4914 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4915 } 4916 4917 void 4918 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4919 { 4920 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4921 4922 if (list_empty(&ndlp->nlp_listp)) { 4923 spin_lock_irq(shost->host_lock); 4924 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4925 spin_unlock_irq(shost->host_lock); 4926 } 4927 } 4928 4929 void 4930 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4931 { 4932 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4933 4934 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4935 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4936 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4937 spin_lock_irq(shost->host_lock); 4938 list_del_init(&ndlp->nlp_listp); 4939 spin_unlock_irq(shost->host_lock); 4940 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4941 NLP_STE_UNUSED_NODE); 4942 } 4943 4944 /** 4945 * lpfc_initialize_node - Initialize all fields of node object 4946 * @vport: Pointer to Virtual Port object. 4947 * @ndlp: Pointer to FC node object. 4948 * @did: FC_ID of the node. 4949 * 4950 * This function is always called when node object need to be initialized. 4951 * It initializes all the fields of the node object. Although the reference 4952 * to phba from @ndlp can be obtained indirectly through it's reference to 4953 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4954 * to the life-span of the @ndlp might go beyond the existence of @vport as 4955 * the final release of ndlp is determined by its reference count. And, the 4956 * operation on @ndlp needs the reference to phba. 4957 **/ 4958 static inline void 4959 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4960 uint32_t did) 4961 { 4962 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4963 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4964 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4965 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp); 4966 4967 ndlp->nlp_DID = did; 4968 ndlp->vport = vport; 4969 ndlp->phba = vport->phba; 4970 ndlp->nlp_sid = NLP_NO_SID; 4971 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4972 kref_init(&ndlp->kref); 4973 atomic_set(&ndlp->cmd_pending, 0); 4974 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4975 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4976 } 4977 4978 void 4979 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4980 { 4981 /* 4982 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4983 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4984 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4985 * until ALL other outstanding threads have completed. We check 4986 * that the ndlp not already in the UNUSED state before we proceed. 4987 */ 4988 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4989 return; 4990 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4991 ndlp->nlp_flag |= NLP_DROPPED; 4992 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4993 lpfc_cleanup_vports_rrqs(vport, ndlp); 4994 lpfc_unreg_rpi(vport, ndlp); 4995 } 4996 4997 lpfc_nlp_put(ndlp); 4998 return; 4999 } 5000 5001 /* 5002 * Start / ReStart rescue timer for Discovery / RSCN handling 5003 */ 5004 void 5005 lpfc_set_disctmo(struct lpfc_vport *vport) 5006 { 5007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5008 struct lpfc_hba *phba = vport->phba; 5009 uint32_t tmo; 5010 5011 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 5012 /* For FAN, timeout should be greater than edtov */ 5013 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 5014 } else { 5015 /* Normal discovery timeout should be > than ELS/CT timeout 5016 * FC spec states we need 3 * ratov for CT requests 5017 */ 5018 tmo = ((phba->fc_ratov * 3) + 3); 5019 } 5020 5021 5022 if (!timer_pending(&vport->fc_disctmo)) { 5023 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5024 "set disc timer: tmo:x%x state:x%x flg:x%x", 5025 tmo, vport->port_state, vport->fc_flag); 5026 } 5027 5028 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 5029 spin_lock_irq(shost->host_lock); 5030 vport->fc_flag |= FC_DISC_TMO; 5031 spin_unlock_irq(shost->host_lock); 5032 5033 /* Start Discovery Timer state <hba_state> */ 5034 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5035 "0247 Start Discovery Timer state x%x " 5036 "Data: x%x x%lx x%x x%x\n", 5037 vport->port_state, tmo, 5038 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 5039 vport->fc_adisc_cnt); 5040 5041 return; 5042 } 5043 5044 /* 5045 * Cancel rescue timer for Discovery / RSCN handling 5046 */ 5047 int 5048 lpfc_can_disctmo(struct lpfc_vport *vport) 5049 { 5050 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5051 unsigned long iflags; 5052 5053 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5054 "can disc timer: state:x%x rtry:x%x flg:x%x", 5055 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5056 5057 /* Turn off discovery timer if its running */ 5058 if (vport->fc_flag & FC_DISC_TMO) { 5059 spin_lock_irqsave(shost->host_lock, iflags); 5060 vport->fc_flag &= ~FC_DISC_TMO; 5061 spin_unlock_irqrestore(shost->host_lock, iflags); 5062 del_timer_sync(&vport->fc_disctmo); 5063 spin_lock_irqsave(&vport->work_port_lock, iflags); 5064 vport->work_port_events &= ~WORKER_DISC_TMO; 5065 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 5066 } 5067 5068 /* Cancel Discovery Timer state <hba_state> */ 5069 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5070 "0248 Cancel Discovery Timer state x%x " 5071 "Data: x%x x%x x%x\n", 5072 vport->port_state, vport->fc_flag, 5073 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 5074 return 0; 5075 } 5076 5077 /* 5078 * Check specified ring for outstanding IOCB on the SLI queue 5079 * Return true if iocb matches the specified nport 5080 */ 5081 int 5082 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 5083 struct lpfc_sli_ring *pring, 5084 struct lpfc_iocbq *iocb, 5085 struct lpfc_nodelist *ndlp) 5086 { 5087 IOCB_t *icmd = &iocb->iocb; 5088 struct lpfc_vport *vport = ndlp->vport; 5089 5090 if (iocb->vport != vport) 5091 return 0; 5092 5093 if (pring->ringno == LPFC_ELS_RING) { 5094 switch (icmd->ulpCommand) { 5095 case CMD_GEN_REQUEST64_CR: 5096 if (iocb->context_un.ndlp == ndlp) 5097 return 1; 5098 fallthrough; 5099 case CMD_ELS_REQUEST64_CR: 5100 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 5101 return 1; 5102 fallthrough; 5103 case CMD_XMIT_ELS_RSP64_CX: 5104 if (iocb->context1 == (uint8_t *) ndlp) 5105 return 1; 5106 } 5107 } else if (pring->ringno == LPFC_FCP_RING) { 5108 /* Skip match check if waiting to relogin to FCP target */ 5109 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 5110 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 5111 return 0; 5112 } 5113 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 5114 return 1; 5115 } 5116 } 5117 return 0; 5118 } 5119 5120 static void 5121 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 5122 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 5123 struct list_head *dequeue_list) 5124 { 5125 struct lpfc_iocbq *iocb, *next_iocb; 5126 5127 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5128 /* Check to see if iocb matches the nport */ 5129 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 5130 /* match, dequeue */ 5131 list_move_tail(&iocb->list, dequeue_list); 5132 } 5133 } 5134 5135 static void 5136 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 5137 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5138 { 5139 struct lpfc_sli *psli = &phba->sli; 5140 uint32_t i; 5141 5142 spin_lock_irq(&phba->hbalock); 5143 for (i = 0; i < psli->num_rings; i++) 5144 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 5145 dequeue_list); 5146 spin_unlock_irq(&phba->hbalock); 5147 } 5148 5149 static void 5150 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 5151 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 5152 { 5153 struct lpfc_sli_ring *pring; 5154 struct lpfc_queue *qp = NULL; 5155 5156 spin_lock_irq(&phba->hbalock); 5157 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 5158 pring = qp->pring; 5159 if (!pring) 5160 continue; 5161 spin_lock(&pring->ring_lock); 5162 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 5163 spin_unlock(&pring->ring_lock); 5164 } 5165 spin_unlock_irq(&phba->hbalock); 5166 } 5167 5168 /* 5169 * Free resources / clean up outstanding I/Os 5170 * associated with nlp_rpi in the LPFC_NODELIST entry. 5171 */ 5172 static int 5173 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5174 { 5175 LIST_HEAD(completions); 5176 5177 lpfc_fabric_abort_nport(ndlp); 5178 5179 /* 5180 * Everything that matches on txcmplq will be returned 5181 * by firmware with a no rpi error. 5182 */ 5183 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5184 if (phba->sli_rev != LPFC_SLI_REV4) 5185 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 5186 else 5187 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 5188 } 5189 5190 /* Cancel all the IOCBs from the completions list */ 5191 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5192 IOERR_SLI_ABORTED); 5193 5194 return 0; 5195 } 5196 5197 /** 5198 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 5199 * @phba: Pointer to HBA context object. 5200 * @pmb: Pointer to mailbox object. 5201 * 5202 * This function will issue an ELS LOGO command after completing 5203 * the UNREG_RPI. 5204 **/ 5205 static void 5206 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5207 { 5208 struct lpfc_vport *vport = pmb->vport; 5209 struct lpfc_nodelist *ndlp; 5210 5211 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 5212 if (!ndlp) 5213 return; 5214 lpfc_issue_els_logo(vport, ndlp, 0); 5215 mempool_free(pmb, phba->mbox_mem_pool); 5216 5217 /* Check to see if there are any deferred events to process */ 5218 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 5219 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 5220 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5221 "1434 UNREG cmpl deferred logo x%x " 5222 "on NPort x%x Data: x%x x%px\n", 5223 ndlp->nlp_rpi, ndlp->nlp_DID, 5224 ndlp->nlp_defer_did, ndlp); 5225 5226 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5227 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 5228 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 5229 } else { 5230 /* NLP_RELEASE_RPI is only set for SLI4 ports. */ 5231 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 5232 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 5233 spin_lock_irq(&ndlp->lock); 5234 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5235 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5236 spin_unlock_irq(&ndlp->lock); 5237 } 5238 spin_lock_irq(&ndlp->lock); 5239 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5240 spin_unlock_irq(&ndlp->lock); 5241 } 5242 } 5243 5244 /* 5245 * Sets the mailbox completion handler to be used for the 5246 * unreg_rpi command. The handler varies based on the state of 5247 * the port and what will be happening to the rpi next. 5248 */ 5249 static void 5250 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 5251 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 5252 { 5253 unsigned long iflags; 5254 5255 /* Driver always gets a reference on the mailbox job 5256 * in support of async jobs. 5257 */ 5258 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 5259 if (!mbox->ctx_ndlp) 5260 return; 5261 5262 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 5263 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 5264 5265 } else if (phba->sli_rev == LPFC_SLI_REV4 && 5266 (!(vport->load_flag & FC_UNLOADING)) && 5267 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 5268 LPFC_SLI_INTF_IF_TYPE_2) && 5269 (kref_read(&ndlp->kref) > 0)) { 5270 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 5271 } else { 5272 if (vport->load_flag & FC_UNLOADING) { 5273 if (phba->sli_rev == LPFC_SLI_REV4) { 5274 spin_lock_irqsave(&ndlp->lock, iflags); 5275 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5276 spin_unlock_irqrestore(&ndlp->lock, iflags); 5277 } 5278 } 5279 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5280 } 5281 } 5282 5283 /* 5284 * Free rpi associated with LPFC_NODELIST entry. 5285 * This routine is called from lpfc_freenode(), when we are removing 5286 * a LPFC_NODELIST entry. It is also called if the driver initiates a 5287 * LOGO that completes successfully, and we are waiting to PLOGI back 5288 * to the remote NPort. In addition, it is called after we receive 5289 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 5290 * we are waiting to PLOGI back to the remote NPort. 5291 */ 5292 int 5293 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5294 { 5295 struct lpfc_hba *phba = vport->phba; 5296 LPFC_MBOXQ_t *mbox; 5297 int rc, acc_plogi = 1; 5298 uint16_t rpi; 5299 5300 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 5301 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 5302 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 5303 lpfc_printf_vlog(vport, KERN_INFO, 5304 LOG_NODE | LOG_DISCOVERY, 5305 "3366 RPI x%x needs to be " 5306 "unregistered nlp_flag x%x " 5307 "did x%x\n", 5308 ndlp->nlp_rpi, ndlp->nlp_flag, 5309 ndlp->nlp_DID); 5310 5311 /* If there is already an UNREG in progress for this ndlp, 5312 * no need to queue up another one. 5313 */ 5314 if (ndlp->nlp_flag & NLP_UNREG_INP) { 5315 lpfc_printf_vlog(vport, KERN_INFO, 5316 LOG_NODE | LOG_DISCOVERY, 5317 "1436 unreg_rpi SKIP UNREG x%x on " 5318 "NPort x%x deferred x%x flg x%x " 5319 "Data: x%px\n", 5320 ndlp->nlp_rpi, ndlp->nlp_DID, 5321 ndlp->nlp_defer_did, 5322 ndlp->nlp_flag, ndlp); 5323 goto out; 5324 } 5325 5326 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5327 if (mbox) { 5328 /* SLI4 ports require the physical rpi value. */ 5329 rpi = ndlp->nlp_rpi; 5330 if (phba->sli_rev == LPFC_SLI_REV4) 5331 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 5332 5333 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 5334 mbox->vport = vport; 5335 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 5336 if (!mbox->ctx_ndlp) { 5337 mempool_free(mbox, phba->mbox_mem_pool); 5338 return 1; 5339 } 5340 5341 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 5342 /* 5343 * accept PLOGIs after unreg_rpi_cmpl 5344 */ 5345 acc_plogi = 0; 5346 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 5347 Fabric_DID_MASK) && 5348 (!(vport->fc_flag & FC_OFFLINE_MODE))) 5349 ndlp->nlp_flag |= NLP_UNREG_INP; 5350 5351 lpfc_printf_vlog(vport, KERN_INFO, 5352 LOG_NODE | LOG_DISCOVERY, 5353 "1433 unreg_rpi UNREG x%x on " 5354 "NPort x%x deferred flg x%x " 5355 "Data:x%px\n", 5356 ndlp->nlp_rpi, ndlp->nlp_DID, 5357 ndlp->nlp_flag, ndlp); 5358 5359 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5360 if (rc == MBX_NOT_FINISHED) { 5361 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5362 mempool_free(mbox, phba->mbox_mem_pool); 5363 acc_plogi = 1; 5364 } 5365 } else { 5366 lpfc_printf_vlog(vport, KERN_INFO, 5367 LOG_NODE | LOG_DISCOVERY, 5368 "1444 Failed to allocate mempool " 5369 "unreg_rpi UNREG x%x, " 5370 "DID x%x, flag x%x, " 5371 "ndlp x%px\n", 5372 ndlp->nlp_rpi, ndlp->nlp_DID, 5373 ndlp->nlp_flag, ndlp); 5374 5375 /* Because mempool_alloc failed, we 5376 * will issue a LOGO here and keep the rpi alive if 5377 * not unloading. 5378 */ 5379 if (!(vport->load_flag & FC_UNLOADING)) { 5380 ndlp->nlp_flag &= ~NLP_UNREG_INP; 5381 lpfc_issue_els_logo(vport, ndlp, 0); 5382 ndlp->nlp_prev_state = ndlp->nlp_state; 5383 lpfc_nlp_set_state(vport, ndlp, 5384 NLP_STE_NPR_NODE); 5385 } 5386 5387 return 1; 5388 } 5389 lpfc_no_rpi(phba, ndlp); 5390 out: 5391 if (phba->sli_rev != LPFC_SLI_REV4) 5392 ndlp->nlp_rpi = 0; 5393 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 5394 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 5395 if (acc_plogi) 5396 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5397 return 1; 5398 } 5399 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 5400 return 0; 5401 } 5402 5403 /** 5404 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 5405 * @phba: pointer to lpfc hba data structure. 5406 * 5407 * This routine is invoked to unregister all the currently registered RPIs 5408 * to the HBA. 5409 **/ 5410 void 5411 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5412 { 5413 struct lpfc_vport **vports; 5414 struct lpfc_nodelist *ndlp; 5415 struct Scsi_Host *shost; 5416 int i; 5417 5418 vports = lpfc_create_vport_work_array(phba); 5419 if (!vports) { 5420 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 5421 "2884 Vport array allocation failed \n"); 5422 return; 5423 } 5424 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5425 shost = lpfc_shost_from_vport(vports[i]); 5426 spin_lock_irq(shost->host_lock); 5427 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5428 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5429 /* The mempool_alloc might sleep */ 5430 spin_unlock_irq(shost->host_lock); 5431 lpfc_unreg_rpi(vports[i], ndlp); 5432 spin_lock_irq(shost->host_lock); 5433 } 5434 } 5435 spin_unlock_irq(shost->host_lock); 5436 } 5437 lpfc_destroy_vport_work_array(phba, vports); 5438 } 5439 5440 void 5441 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5442 { 5443 struct lpfc_hba *phba = vport->phba; 5444 LPFC_MBOXQ_t *mbox; 5445 int rc; 5446 5447 if (phba->sli_rev == LPFC_SLI_REV4) { 5448 lpfc_sli4_unreg_all_rpis(vport); 5449 return; 5450 } 5451 5452 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5453 if (mbox) { 5454 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5455 mbox); 5456 mbox->vport = vport; 5457 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5458 mbox->ctx_ndlp = NULL; 5459 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5460 if (rc != MBX_TIMEOUT) 5461 mempool_free(mbox, phba->mbox_mem_pool); 5462 5463 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5464 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5465 "1836 Could not issue " 5466 "unreg_login(all_rpis) status %d\n", 5467 rc); 5468 } 5469 } 5470 5471 void 5472 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5473 { 5474 struct lpfc_hba *phba = vport->phba; 5475 LPFC_MBOXQ_t *mbox; 5476 int rc; 5477 5478 /* Unreg DID is an SLI3 operation. */ 5479 if (phba->sli_rev > LPFC_SLI_REV3) 5480 return; 5481 5482 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5483 if (mbox) { 5484 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5485 mbox); 5486 mbox->vport = vport; 5487 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5488 mbox->ctx_ndlp = NULL; 5489 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5490 if (rc != MBX_TIMEOUT) 5491 mempool_free(mbox, phba->mbox_mem_pool); 5492 5493 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5494 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 5495 "1815 Could not issue " 5496 "unreg_did (default rpis) status %d\n", 5497 rc); 5498 } 5499 } 5500 5501 /* 5502 * Free resources associated with LPFC_NODELIST entry 5503 * so it can be freed. 5504 */ 5505 static int 5506 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5507 { 5508 struct lpfc_hba *phba = vport->phba; 5509 LPFC_MBOXQ_t *mb, *nextmb; 5510 struct lpfc_dmabuf *mp; 5511 5512 /* Cleanup node for NPort <nlp_DID> */ 5513 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5514 "0900 Cleanup node for NPort x%x " 5515 "Data: x%x x%x x%x\n", 5516 ndlp->nlp_DID, ndlp->nlp_flag, 5517 ndlp->nlp_state, ndlp->nlp_rpi); 5518 lpfc_dequeue_node(vport, ndlp); 5519 5520 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5521 5522 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5523 if ((mb = phba->sli.mbox_active)) { 5524 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5525 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5526 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5527 mb->ctx_ndlp = NULL; 5528 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5529 } 5530 } 5531 5532 spin_lock_irq(&phba->hbalock); 5533 /* Cleanup REG_LOGIN completions which are not yet processed */ 5534 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5535 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5536 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5537 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5538 continue; 5539 5540 mb->ctx_ndlp = NULL; 5541 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5542 } 5543 5544 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5545 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5546 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5547 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5548 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5549 if (mp) { 5550 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5551 kfree(mp); 5552 } 5553 list_del(&mb->list); 5554 mempool_free(mb, phba->mbox_mem_pool); 5555 /* We shall not invoke the lpfc_nlp_put to decrement 5556 * the ndlp reference count as we are in the process 5557 * of lpfc_nlp_release. 5558 */ 5559 } 5560 } 5561 spin_unlock_irq(&phba->hbalock); 5562 5563 lpfc_els_abort(phba, ndlp); 5564 5565 spin_lock_irq(&ndlp->lock); 5566 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5567 spin_unlock_irq(&ndlp->lock); 5568 5569 ndlp->nlp_last_elscmd = 0; 5570 del_timer_sync(&ndlp->nlp_delayfunc); 5571 5572 list_del_init(&ndlp->els_retry_evt.evt_listp); 5573 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5574 list_del_init(&ndlp->recovery_evt.evt_listp); 5575 lpfc_cleanup_vports_rrqs(vport, ndlp); 5576 5577 if (phba->sli_rev == LPFC_SLI_REV4) 5578 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5579 5580 return 0; 5581 } 5582 5583 static int 5584 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5585 uint32_t did) 5586 { 5587 D_ID mydid, ndlpdid, matchdid; 5588 5589 if (did == Bcast_DID) 5590 return 0; 5591 5592 /* First check for Direct match */ 5593 if (ndlp->nlp_DID == did) 5594 return 1; 5595 5596 /* Next check for area/domain identically equals 0 match */ 5597 mydid.un.word = vport->fc_myDID; 5598 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5599 return 0; 5600 } 5601 5602 matchdid.un.word = did; 5603 ndlpdid.un.word = ndlp->nlp_DID; 5604 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5605 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5606 (mydid.un.b.area == matchdid.un.b.area)) { 5607 /* This code is supposed to match the ID 5608 * for a private loop device that is 5609 * connect to fl_port. But we need to 5610 * check that the port did not just go 5611 * from pt2pt to fabric or we could end 5612 * up matching ndlp->nlp_DID 000001 to 5613 * fabric DID 0x20101 5614 */ 5615 if ((ndlpdid.un.b.domain == 0) && 5616 (ndlpdid.un.b.area == 0)) { 5617 if (ndlpdid.un.b.id && 5618 vport->phba->fc_topology == 5619 LPFC_TOPOLOGY_LOOP) 5620 return 1; 5621 } 5622 return 0; 5623 } 5624 5625 matchdid.un.word = ndlp->nlp_DID; 5626 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5627 (mydid.un.b.area == ndlpdid.un.b.area)) { 5628 if ((matchdid.un.b.domain == 0) && 5629 (matchdid.un.b.area == 0)) { 5630 if (matchdid.un.b.id) 5631 return 1; 5632 } 5633 } 5634 } 5635 return 0; 5636 } 5637 5638 /* Search for a nodelist entry */ 5639 static struct lpfc_nodelist * 5640 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5641 { 5642 struct lpfc_nodelist *ndlp; 5643 uint32_t data1; 5644 5645 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5646 if (lpfc_matchdid(vport, ndlp, did)) { 5647 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5648 ((uint32_t)ndlp->nlp_xri << 16) | 5649 ((uint32_t)ndlp->nlp_type << 8) 5650 ); 5651 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5652 "0929 FIND node DID " 5653 "Data: x%px x%x x%x x%x x%x x%px\n", 5654 ndlp, ndlp->nlp_DID, 5655 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5656 ndlp->active_rrqs_xri_bitmap); 5657 return ndlp; 5658 } 5659 } 5660 5661 /* FIND node did <did> NOT FOUND */ 5662 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5663 "0932 FIND node did x%x NOT FOUND.\n", did); 5664 return NULL; 5665 } 5666 5667 struct lpfc_nodelist * 5668 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5669 { 5670 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5671 struct lpfc_nodelist *ndlp; 5672 unsigned long iflags; 5673 5674 spin_lock_irqsave(shost->host_lock, iflags); 5675 ndlp = __lpfc_findnode_did(vport, did); 5676 spin_unlock_irqrestore(shost->host_lock, iflags); 5677 return ndlp; 5678 } 5679 5680 struct lpfc_nodelist * 5681 lpfc_findnode_mapped(struct lpfc_vport *vport) 5682 { 5683 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5684 struct lpfc_nodelist *ndlp; 5685 uint32_t data1; 5686 unsigned long iflags; 5687 5688 spin_lock_irqsave(shost->host_lock, iflags); 5689 5690 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5691 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5692 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5693 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5694 ((uint32_t)ndlp->nlp_xri << 16) | 5695 ((uint32_t)ndlp->nlp_type << 8) | 5696 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5697 spin_unlock_irqrestore(shost->host_lock, iflags); 5698 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5699 "2025 FIND node DID " 5700 "Data: x%px x%x x%x x%x x%px\n", 5701 ndlp, ndlp->nlp_DID, 5702 ndlp->nlp_flag, data1, 5703 ndlp->active_rrqs_xri_bitmap); 5704 return ndlp; 5705 } 5706 } 5707 spin_unlock_irqrestore(shost->host_lock, iflags); 5708 5709 /* FIND node did <did> NOT FOUND */ 5710 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5711 "2026 FIND mapped did NOT FOUND.\n"); 5712 return NULL; 5713 } 5714 5715 struct lpfc_nodelist * 5716 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5717 { 5718 struct lpfc_nodelist *ndlp; 5719 5720 ndlp = lpfc_findnode_did(vport, did); 5721 if (!ndlp) { 5722 if (vport->phba->nvmet_support) 5723 return NULL; 5724 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5725 lpfc_rscn_payload_check(vport, did) == 0) 5726 return NULL; 5727 ndlp = lpfc_nlp_init(vport, did); 5728 if (!ndlp) 5729 return NULL; 5730 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5731 5732 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5733 "6453 Setup New Node 2B_DISC x%x " 5734 "Data:x%x x%x x%x\n", 5735 ndlp->nlp_DID, ndlp->nlp_flag, 5736 ndlp->nlp_state, vport->fc_flag); 5737 5738 spin_lock_irq(&ndlp->lock); 5739 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5740 spin_unlock_irq(&ndlp->lock); 5741 return ndlp; 5742 } 5743 5744 /* The NVME Target does not want to actively manage an rport. 5745 * The goal is to allow the target to reset its state and clear 5746 * pending IO in preparation for the initiator to recover. 5747 */ 5748 if ((vport->fc_flag & FC_RSCN_MODE) && 5749 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5750 if (lpfc_rscn_payload_check(vport, did)) { 5751 5752 /* Since this node is marked for discovery, 5753 * delay timeout is not needed. 5754 */ 5755 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5756 5757 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5758 "6455 Setup RSCN Node 2B_DISC x%x " 5759 "Data:x%x x%x x%x\n", 5760 ndlp->nlp_DID, ndlp->nlp_flag, 5761 ndlp->nlp_state, vport->fc_flag); 5762 5763 /* NVME Target mode waits until rport is known to be 5764 * impacted by the RSCN before it transitions. No 5765 * active management - just go to NPR provided the 5766 * node had a valid login. 5767 */ 5768 if (vport->phba->nvmet_support) 5769 return ndlp; 5770 5771 /* If we've already received a PLOGI from this NPort 5772 * we don't need to try to discover it again. 5773 */ 5774 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5775 !(ndlp->nlp_type & 5776 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5777 return NULL; 5778 5779 ndlp->nlp_prev_state = ndlp->nlp_state; 5780 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5781 5782 spin_lock_irq(&ndlp->lock); 5783 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5784 spin_unlock_irq(&ndlp->lock); 5785 } else { 5786 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5787 "6456 Skip Setup RSCN Node x%x " 5788 "Data:x%x x%x x%x\n", 5789 ndlp->nlp_DID, ndlp->nlp_flag, 5790 ndlp->nlp_state, vport->fc_flag); 5791 ndlp = NULL; 5792 } 5793 } else { 5794 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5795 "6457 Setup Active Node 2B_DISC x%x " 5796 "Data:x%x x%x x%x\n", 5797 ndlp->nlp_DID, ndlp->nlp_flag, 5798 ndlp->nlp_state, vport->fc_flag); 5799 5800 /* If the initiator received a PLOGI from this NPort or if the 5801 * initiator is already in the process of discovery on it, 5802 * there's no need to try to discover it again. 5803 */ 5804 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5805 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5806 (!vport->phba->nvmet_support && 5807 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5808 return NULL; 5809 5810 if (vport->phba->nvmet_support) 5811 return ndlp; 5812 5813 /* Moving to NPR state clears unsolicited flags and 5814 * allows for rediscovery 5815 */ 5816 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5817 5818 spin_lock_irq(&ndlp->lock); 5819 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5820 spin_unlock_irq(&ndlp->lock); 5821 } 5822 return ndlp; 5823 } 5824 5825 /* Build a list of nodes to discover based on the loopmap */ 5826 void 5827 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5828 { 5829 struct lpfc_hba *phba = vport->phba; 5830 int j; 5831 uint32_t alpa, index; 5832 5833 if (!lpfc_is_link_up(phba)) 5834 return; 5835 5836 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5837 return; 5838 5839 /* Check for loop map present or not */ 5840 if (phba->alpa_map[0]) { 5841 for (j = 1; j <= phba->alpa_map[0]; j++) { 5842 alpa = phba->alpa_map[j]; 5843 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5844 continue; 5845 lpfc_setup_disc_node(vport, alpa); 5846 } 5847 } else { 5848 /* No alpamap, so try all alpa's */ 5849 for (j = 0; j < FC_MAXLOOP; j++) { 5850 /* If cfg_scan_down is set, start from highest 5851 * ALPA (0xef) to lowest (0x1). 5852 */ 5853 if (vport->cfg_scan_down) 5854 index = j; 5855 else 5856 index = FC_MAXLOOP - j - 1; 5857 alpa = lpfcAlpaArray[index]; 5858 if ((vport->fc_myDID & 0xff) == alpa) 5859 continue; 5860 lpfc_setup_disc_node(vport, alpa); 5861 } 5862 } 5863 return; 5864 } 5865 5866 /* SLI3 only */ 5867 void 5868 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5869 { 5870 LPFC_MBOXQ_t *mbox; 5871 struct lpfc_sli *psli = &phba->sli; 5872 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5873 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5874 int rc; 5875 5876 /* 5877 * if it's not a physical port or if we already send 5878 * clear_la then don't send it. 5879 */ 5880 if ((phba->link_state >= LPFC_CLEAR_LA) || 5881 (vport->port_type != LPFC_PHYSICAL_PORT) || 5882 (phba->sli_rev == LPFC_SLI_REV4)) 5883 return; 5884 5885 /* Link up discovery */ 5886 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5887 phba->link_state = LPFC_CLEAR_LA; 5888 lpfc_clear_la(phba, mbox); 5889 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5890 mbox->vport = vport; 5891 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5892 if (rc == MBX_NOT_FINISHED) { 5893 mempool_free(mbox, phba->mbox_mem_pool); 5894 lpfc_disc_flush_list(vport); 5895 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5896 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5897 phba->link_state = LPFC_HBA_ERROR; 5898 } 5899 } 5900 } 5901 5902 /* Reg_vpi to tell firmware to resume normal operations */ 5903 void 5904 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5905 { 5906 LPFC_MBOXQ_t *regvpimbox; 5907 5908 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5909 if (regvpimbox) { 5910 lpfc_reg_vpi(vport, regvpimbox); 5911 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5912 regvpimbox->vport = vport; 5913 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5914 == MBX_NOT_FINISHED) { 5915 mempool_free(regvpimbox, phba->mbox_mem_pool); 5916 } 5917 } 5918 } 5919 5920 /* Start Link up / RSCN discovery on NPR nodes */ 5921 void 5922 lpfc_disc_start(struct lpfc_vport *vport) 5923 { 5924 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5925 struct lpfc_hba *phba = vport->phba; 5926 uint32_t num_sent; 5927 uint32_t clear_la_pending; 5928 5929 if (!lpfc_is_link_up(phba)) { 5930 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5931 "3315 Link is not up %x\n", 5932 phba->link_state); 5933 return; 5934 } 5935 5936 if (phba->link_state == LPFC_CLEAR_LA) 5937 clear_la_pending = 1; 5938 else 5939 clear_la_pending = 0; 5940 5941 if (vport->port_state < LPFC_VPORT_READY) 5942 vport->port_state = LPFC_DISC_AUTH; 5943 5944 lpfc_set_disctmo(vport); 5945 5946 vport->fc_prevDID = vport->fc_myDID; 5947 vport->num_disc_nodes = 0; 5948 5949 /* Start Discovery state <hba_state> */ 5950 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5951 "0202 Start Discovery port state x%x " 5952 "flg x%x Data: x%x x%x x%x\n", 5953 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5954 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5955 5956 /* First do ADISCs - if any */ 5957 num_sent = lpfc_els_disc_adisc(vport); 5958 5959 if (num_sent) 5960 return; 5961 5962 /* Register the VPI for SLI3, NPIV only. */ 5963 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5964 !(vport->fc_flag & FC_PT2PT) && 5965 !(vport->fc_flag & FC_RSCN_MODE) && 5966 (phba->sli_rev < LPFC_SLI_REV4)) { 5967 lpfc_issue_clear_la(phba, vport); 5968 lpfc_issue_reg_vpi(phba, vport); 5969 return; 5970 } 5971 5972 /* 5973 * For SLI2, we need to set port_state to READY and continue 5974 * discovery. 5975 */ 5976 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5977 /* If we get here, there is nothing to ADISC */ 5978 lpfc_issue_clear_la(phba, vport); 5979 5980 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5981 vport->num_disc_nodes = 0; 5982 /* go thru NPR nodes and issue ELS PLOGIs */ 5983 if (vport->fc_npr_cnt) 5984 lpfc_els_disc_plogi(vport); 5985 5986 if (!vport->num_disc_nodes) { 5987 spin_lock_irq(shost->host_lock); 5988 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5989 spin_unlock_irq(shost->host_lock); 5990 lpfc_can_disctmo(vport); 5991 } 5992 } 5993 vport->port_state = LPFC_VPORT_READY; 5994 } else { 5995 /* Next do PLOGIs - if any */ 5996 num_sent = lpfc_els_disc_plogi(vport); 5997 5998 if (num_sent) 5999 return; 6000 6001 if (vport->fc_flag & FC_RSCN_MODE) { 6002 /* Check to see if more RSCNs came in while we 6003 * were processing this one. 6004 */ 6005 if ((vport->fc_rscn_id_cnt == 0) && 6006 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 6007 spin_lock_irq(shost->host_lock); 6008 vport->fc_flag &= ~FC_RSCN_MODE; 6009 spin_unlock_irq(shost->host_lock); 6010 lpfc_can_disctmo(vport); 6011 } else 6012 lpfc_els_handle_rscn(vport); 6013 } 6014 } 6015 return; 6016 } 6017 6018 /* 6019 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 6020 * ring the match the sppecified nodelist. 6021 */ 6022 static void 6023 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 6024 { 6025 LIST_HEAD(completions); 6026 IOCB_t *icmd; 6027 struct lpfc_iocbq *iocb, *next_iocb; 6028 struct lpfc_sli_ring *pring; 6029 6030 pring = lpfc_phba_elsring(phba); 6031 if (unlikely(!pring)) 6032 return; 6033 6034 /* Error matching iocb on txq or txcmplq 6035 * First check the txq. 6036 */ 6037 spin_lock_irq(&phba->hbalock); 6038 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 6039 if (iocb->context1 != ndlp) { 6040 continue; 6041 } 6042 icmd = &iocb->iocb; 6043 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 6044 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 6045 6046 list_move_tail(&iocb->list, &completions); 6047 } 6048 } 6049 6050 /* Next check the txcmplq */ 6051 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 6052 if (iocb->context1 != ndlp) { 6053 continue; 6054 } 6055 icmd = &iocb->iocb; 6056 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 6057 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 6058 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); 6059 } 6060 } 6061 spin_unlock_irq(&phba->hbalock); 6062 6063 /* Make sure HBA is alive */ 6064 lpfc_issue_hb_tmo(phba); 6065 6066 /* Cancel all the IOCBs from the completions list */ 6067 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 6068 IOERR_SLI_ABORTED); 6069 } 6070 6071 static void 6072 lpfc_disc_flush_list(struct lpfc_vport *vport) 6073 { 6074 struct lpfc_nodelist *ndlp, *next_ndlp; 6075 struct lpfc_hba *phba = vport->phba; 6076 6077 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 6078 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6079 nlp_listp) { 6080 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 6081 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 6082 lpfc_free_tx(phba, ndlp); 6083 } 6084 } 6085 } 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 } 6095 6096 /*****************************************************************************/ 6097 /* 6098 * NAME: lpfc_disc_timeout 6099 * 6100 * FUNCTION: Fibre Channel driver discovery timeout routine. 6101 * 6102 * EXECUTION ENVIRONMENT: interrupt only 6103 * 6104 * CALLED FROM: 6105 * Timer function 6106 * 6107 * RETURNS: 6108 * none 6109 */ 6110 /*****************************************************************************/ 6111 void 6112 lpfc_disc_timeout(struct timer_list *t) 6113 { 6114 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 6115 struct lpfc_hba *phba = vport->phba; 6116 uint32_t tmo_posted; 6117 unsigned long flags = 0; 6118 6119 if (unlikely(!phba)) 6120 return; 6121 6122 spin_lock_irqsave(&vport->work_port_lock, flags); 6123 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 6124 if (!tmo_posted) 6125 vport->work_port_events |= WORKER_DISC_TMO; 6126 spin_unlock_irqrestore(&vport->work_port_lock, flags); 6127 6128 if (!tmo_posted) 6129 lpfc_worker_wake_up(phba); 6130 return; 6131 } 6132 6133 static void 6134 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 6135 { 6136 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6137 struct lpfc_hba *phba = vport->phba; 6138 struct lpfc_sli *psli = &phba->sli; 6139 struct lpfc_nodelist *ndlp, *next_ndlp; 6140 LPFC_MBOXQ_t *initlinkmbox; 6141 int rc, clrlaerr = 0; 6142 6143 if (!(vport->fc_flag & FC_DISC_TMO)) 6144 return; 6145 6146 spin_lock_irq(shost->host_lock); 6147 vport->fc_flag &= ~FC_DISC_TMO; 6148 spin_unlock_irq(shost->host_lock); 6149 6150 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 6151 "disc timeout: state:x%x rtry:x%x flg:x%x", 6152 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 6153 6154 switch (vport->port_state) { 6155 6156 case LPFC_LOCAL_CFG_LINK: 6157 /* 6158 * port_state is identically LPFC_LOCAL_CFG_LINK while 6159 * waiting for FAN timeout 6160 */ 6161 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 6162 "0221 FAN timeout\n"); 6163 6164 /* Start discovery by sending FLOGI, clean up old rpis */ 6165 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 6166 nlp_listp) { 6167 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 6168 continue; 6169 if (ndlp->nlp_type & NLP_FABRIC) { 6170 /* Clean up the ndlp on Fabric connections */ 6171 lpfc_drop_node(vport, ndlp); 6172 6173 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 6174 /* Fail outstanding IO now since device 6175 * is marked for PLOGI. 6176 */ 6177 lpfc_unreg_rpi(vport, ndlp); 6178 } 6179 } 6180 if (vport->port_state != LPFC_FLOGI) { 6181 if (phba->sli_rev <= LPFC_SLI_REV3) 6182 lpfc_initial_flogi(vport); 6183 else 6184 lpfc_issue_init_vfi(vport); 6185 return; 6186 } 6187 break; 6188 6189 case LPFC_FDISC: 6190 case LPFC_FLOGI: 6191 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 6192 /* Initial FLOGI timeout */ 6193 lpfc_printf_vlog(vport, KERN_ERR, 6194 LOG_TRACE_EVENT, 6195 "0222 Initial %s timeout\n", 6196 vport->vpi ? "FDISC" : "FLOGI"); 6197 6198 /* Assume no Fabric and go on with discovery. 6199 * Check for outstanding ELS FLOGI to abort. 6200 */ 6201 6202 /* FLOGI failed, so just use loop map to make discovery list */ 6203 lpfc_disc_list_loopmap(vport); 6204 6205 /* Start discovery */ 6206 lpfc_disc_start(vport); 6207 break; 6208 6209 case LPFC_FABRIC_CFG_LINK: 6210 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 6211 NameServer login */ 6212 lpfc_printf_vlog(vport, KERN_ERR, 6213 LOG_TRACE_EVENT, 6214 "0223 Timeout while waiting for " 6215 "NameServer login\n"); 6216 /* Next look for NameServer ndlp */ 6217 ndlp = lpfc_findnode_did(vport, NameServer_DID); 6218 if (ndlp) 6219 lpfc_els_abort(phba, ndlp); 6220 6221 /* ReStart discovery */ 6222 goto restart_disc; 6223 6224 case LPFC_NS_QRY: 6225 /* Check for wait for NameServer Rsp timeout */ 6226 lpfc_printf_vlog(vport, KERN_ERR, 6227 LOG_TRACE_EVENT, 6228 "0224 NameServer Query timeout " 6229 "Data: x%x x%x\n", 6230 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6231 6232 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 6233 /* Try it one more time */ 6234 vport->fc_ns_retry++; 6235 vport->gidft_inp = 0; 6236 rc = lpfc_issue_gidft(vport); 6237 if (rc == 0) 6238 break; 6239 } 6240 vport->fc_ns_retry = 0; 6241 6242 restart_disc: 6243 /* 6244 * Discovery is over. 6245 * set port_state to PORT_READY if SLI2. 6246 * cmpl_reg_vpi will set port_state to READY for SLI3. 6247 */ 6248 if (phba->sli_rev < LPFC_SLI_REV4) { 6249 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6250 lpfc_issue_reg_vpi(phba, vport); 6251 else { 6252 lpfc_issue_clear_la(phba, vport); 6253 vport->port_state = LPFC_VPORT_READY; 6254 } 6255 } 6256 6257 /* Setup and issue mailbox INITIALIZE LINK command */ 6258 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6259 if (!initlinkmbox) { 6260 lpfc_printf_vlog(vport, KERN_ERR, 6261 LOG_TRACE_EVENT, 6262 "0206 Device Discovery " 6263 "completion error\n"); 6264 phba->link_state = LPFC_HBA_ERROR; 6265 break; 6266 } 6267 6268 lpfc_linkdown(phba); 6269 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 6270 phba->cfg_link_speed); 6271 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 6272 initlinkmbox->vport = vport; 6273 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 6274 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 6275 lpfc_set_loopback_flag(phba); 6276 if (rc == MBX_NOT_FINISHED) 6277 mempool_free(initlinkmbox, phba->mbox_mem_pool); 6278 6279 break; 6280 6281 case LPFC_DISC_AUTH: 6282 /* Node Authentication timeout */ 6283 lpfc_printf_vlog(vport, KERN_ERR, 6284 LOG_TRACE_EVENT, 6285 "0227 Node Authentication timeout\n"); 6286 lpfc_disc_flush_list(vport); 6287 6288 /* 6289 * set port_state to PORT_READY if SLI2. 6290 * cmpl_reg_vpi will set port_state to READY for SLI3. 6291 */ 6292 if (phba->sli_rev < LPFC_SLI_REV4) { 6293 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6294 lpfc_issue_reg_vpi(phba, vport); 6295 else { /* NPIV Not enabled */ 6296 lpfc_issue_clear_la(phba, vport); 6297 vport->port_state = LPFC_VPORT_READY; 6298 } 6299 } 6300 break; 6301 6302 case LPFC_VPORT_READY: 6303 if (vport->fc_flag & FC_RSCN_MODE) { 6304 lpfc_printf_vlog(vport, KERN_ERR, 6305 LOG_TRACE_EVENT, 6306 "0231 RSCN timeout Data: x%x " 6307 "x%x\n", 6308 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6309 6310 /* Cleanup any outstanding ELS commands */ 6311 lpfc_els_flush_cmd(vport); 6312 6313 lpfc_els_flush_rscn(vport); 6314 lpfc_disc_flush_list(vport); 6315 } 6316 break; 6317 6318 default: 6319 lpfc_printf_vlog(vport, KERN_ERR, 6320 LOG_TRACE_EVENT, 6321 "0273 Unexpected discovery timeout, " 6322 "vport State x%x\n", vport->port_state); 6323 break; 6324 } 6325 6326 switch (phba->link_state) { 6327 case LPFC_CLEAR_LA: 6328 /* CLEAR LA timeout */ 6329 lpfc_printf_vlog(vport, KERN_ERR, 6330 LOG_TRACE_EVENT, 6331 "0228 CLEAR LA timeout\n"); 6332 clrlaerr = 1; 6333 break; 6334 6335 case LPFC_LINK_UP: 6336 lpfc_issue_clear_la(phba, vport); 6337 fallthrough; 6338 case LPFC_LINK_UNKNOWN: 6339 case LPFC_WARM_START: 6340 case LPFC_INIT_START: 6341 case LPFC_INIT_MBX_CMDS: 6342 case LPFC_LINK_DOWN: 6343 case LPFC_HBA_ERROR: 6344 lpfc_printf_vlog(vport, KERN_ERR, 6345 LOG_TRACE_EVENT, 6346 "0230 Unexpected timeout, hba link " 6347 "state x%x\n", phba->link_state); 6348 clrlaerr = 1; 6349 break; 6350 6351 case LPFC_HBA_READY: 6352 break; 6353 } 6354 6355 if (clrlaerr) { 6356 lpfc_disc_flush_list(vport); 6357 if (phba->sli_rev != LPFC_SLI_REV4) { 6358 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6359 ~LPFC_STOP_IOCB_EVENT; 6360 psli->sli3_ring[LPFC_FCP_RING].flag &= 6361 ~LPFC_STOP_IOCB_EVENT; 6362 } 6363 vport->port_state = LPFC_VPORT_READY; 6364 } 6365 return; 6366 } 6367 6368 /* 6369 * This routine handles processing a NameServer REG_LOGIN mailbox 6370 * command upon completion. It is setup in the LPFC_MBOXQ 6371 * as the completion routine when the command is 6372 * handed off to the SLI layer. 6373 */ 6374 void 6375 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6376 { 6377 MAILBOX_t *mb = &pmb->u.mb; 6378 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 6379 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6380 struct lpfc_vport *vport = pmb->vport; 6381 6382 pmb->ctx_buf = NULL; 6383 pmb->ctx_ndlp = NULL; 6384 6385 if (phba->sli_rev < LPFC_SLI_REV4) 6386 ndlp->nlp_rpi = mb->un.varWords[0]; 6387 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6388 ndlp->nlp_type |= NLP_FABRIC; 6389 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6390 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6391 "0004 rpi:%x DID:%x flg:%x %d x%px\n", 6392 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6393 kref_read(&ndlp->kref), 6394 ndlp); 6395 /* 6396 * Start issuing Fabric-Device Management Interface (FDMI) command to 6397 * 0xfffffa (FDMI well known port). 6398 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6399 * DPRT -> RPRT (vports) 6400 */ 6401 if (vport->port_type == LPFC_PHYSICAL_PORT) { 6402 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */ 6403 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6404 } else { 6405 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6406 } 6407 6408 6409 /* decrement the node reference count held for this callback 6410 * function. 6411 */ 6412 lpfc_nlp_put(ndlp); 6413 lpfc_mbuf_free(phba, mp->virt, mp->phys); 6414 kfree(mp); 6415 mempool_free(pmb, phba->mbox_mem_pool); 6416 6417 return; 6418 } 6419 6420 static int 6421 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6422 { 6423 uint16_t *rpi = param; 6424 6425 return ndlp->nlp_rpi == *rpi; 6426 } 6427 6428 static int 6429 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6430 { 6431 return memcmp(&ndlp->nlp_portname, param, 6432 sizeof(ndlp->nlp_portname)) == 0; 6433 } 6434 6435 static struct lpfc_nodelist * 6436 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6437 { 6438 struct lpfc_nodelist *ndlp; 6439 6440 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6441 if (filter(ndlp, param)) { 6442 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6443 "3185 FIND node filter %ps DID " 6444 "ndlp x%px did x%x flg x%x st x%x " 6445 "xri x%x type x%x rpi x%x\n", 6446 filter, ndlp, ndlp->nlp_DID, 6447 ndlp->nlp_flag, ndlp->nlp_state, 6448 ndlp->nlp_xri, ndlp->nlp_type, 6449 ndlp->nlp_rpi); 6450 return ndlp; 6451 } 6452 } 6453 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6454 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6455 return NULL; 6456 } 6457 6458 /* 6459 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6460 * returns the node list element pointer else return NULL. 6461 */ 6462 struct lpfc_nodelist * 6463 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6464 { 6465 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6466 } 6467 6468 /* 6469 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6470 * returns the node element list pointer else return NULL. 6471 */ 6472 struct lpfc_nodelist * 6473 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6474 { 6475 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6476 struct lpfc_nodelist *ndlp; 6477 6478 spin_lock_irq(shost->host_lock); 6479 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6480 spin_unlock_irq(shost->host_lock); 6481 return ndlp; 6482 } 6483 6484 /* 6485 * This routine looks up the ndlp lists for the given RPI. If the rpi 6486 * is found, the routine returns the node element list pointer else 6487 * return NULL. 6488 */ 6489 struct lpfc_nodelist * 6490 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6491 { 6492 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6493 struct lpfc_nodelist *ndlp; 6494 unsigned long flags; 6495 6496 spin_lock_irqsave(shost->host_lock, flags); 6497 ndlp = __lpfc_findnode_rpi(vport, rpi); 6498 spin_unlock_irqrestore(shost->host_lock, flags); 6499 return ndlp; 6500 } 6501 6502 /** 6503 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6504 * @phba: pointer to lpfc hba data structure. 6505 * @vpi: the physical host virtual N_Port identifier. 6506 * 6507 * This routine finds a vport on a HBA (referred by @phba) through a 6508 * @vpi. The function walks the HBA's vport list and returns the address 6509 * of the vport with the matching @vpi. 6510 * 6511 * Return code 6512 * NULL - No vport with the matching @vpi found 6513 * Otherwise - Address to the vport with the matching @vpi. 6514 **/ 6515 struct lpfc_vport * 6516 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6517 { 6518 struct lpfc_vport *vport; 6519 unsigned long flags; 6520 int i = 0; 6521 6522 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6523 if (vpi > 0) { 6524 /* 6525 * Translate the physical vpi to the logical vpi. The 6526 * vport stores the logical vpi. 6527 */ 6528 for (i = 0; i <= phba->max_vpi; i++) { 6529 if (vpi == phba->vpi_ids[i]) 6530 break; 6531 } 6532 6533 if (i > phba->max_vpi) { 6534 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6535 "2936 Could not find Vport mapped " 6536 "to vpi %d\n", vpi); 6537 return NULL; 6538 } 6539 } 6540 6541 spin_lock_irqsave(&phba->port_list_lock, flags); 6542 list_for_each_entry(vport, &phba->port_list, listentry) { 6543 if (vport->vpi == i) { 6544 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6545 return vport; 6546 } 6547 } 6548 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6549 return NULL; 6550 } 6551 6552 struct lpfc_nodelist * 6553 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6554 { 6555 struct lpfc_nodelist *ndlp; 6556 int rpi = LPFC_RPI_ALLOC_ERROR; 6557 6558 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6559 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6560 if (rpi == LPFC_RPI_ALLOC_ERROR) 6561 return NULL; 6562 } 6563 6564 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6565 if (!ndlp) { 6566 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6567 lpfc_sli4_free_rpi(vport->phba, rpi); 6568 return NULL; 6569 } 6570 6571 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6572 6573 spin_lock_init(&ndlp->lock); 6574 6575 lpfc_initialize_node(vport, ndlp, did); 6576 INIT_LIST_HEAD(&ndlp->nlp_listp); 6577 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6578 ndlp->nlp_rpi = rpi; 6579 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6580 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6581 "flg:x%x refcnt:%d\n", 6582 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6583 ndlp->nlp_flag, kref_read(&ndlp->kref)); 6584 6585 ndlp->active_rrqs_xri_bitmap = 6586 mempool_alloc(vport->phba->active_rrq_pool, 6587 GFP_KERNEL); 6588 if (ndlp->active_rrqs_xri_bitmap) 6589 memset(ndlp->active_rrqs_xri_bitmap, 0, 6590 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6591 } 6592 6593 6594 6595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6596 "node init: did:x%x", 6597 ndlp->nlp_DID, 0, 0); 6598 6599 return ndlp; 6600 } 6601 6602 /* This routine releases all resources associated with a specifc NPort's ndlp 6603 * and mempool_free's the nodelist. 6604 */ 6605 static void 6606 lpfc_nlp_release(struct kref *kref) 6607 { 6608 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6609 kref); 6610 struct lpfc_vport *vport = ndlp->vport; 6611 6612 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6613 "node release: did:x%x flg:x%x type:x%x", 6614 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6615 6616 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6617 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n", 6618 __func__, ndlp, ndlp->nlp_DID, 6619 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6620 6621 /* remove ndlp from action. */ 6622 lpfc_cancel_retry_delay_tmo(vport, ndlp); 6623 lpfc_cleanup_node(vport, ndlp); 6624 6625 /* Not all ELS transactions have registered the RPI with the port. 6626 * In these cases the rpi usage is temporary and the node is 6627 * released when the WQE is completed. Catch this case to free the 6628 * RPI to the pool. Because this node is in the release path, a lock 6629 * is unnecessary. All references are gone and the node has been 6630 * dequeued. 6631 */ 6632 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 6633 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR && 6634 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) { 6635 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 6636 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 6637 } 6638 } 6639 6640 /* The node is not freed back to memory, it is released to a pool so 6641 * the node fields need to be cleaned up. 6642 */ 6643 ndlp->vport = NULL; 6644 ndlp->nlp_state = NLP_STE_FREED_NODE; 6645 ndlp->nlp_flag = 0; 6646 ndlp->fc4_xpt_flags = 0; 6647 6648 /* free ndlp memory for final ndlp release */ 6649 kfree(ndlp->lat_data); 6650 if (ndlp->phba->sli_rev == LPFC_SLI_REV4) 6651 mempool_free(ndlp->active_rrqs_xri_bitmap, 6652 ndlp->phba->active_rrq_pool); 6653 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6654 } 6655 6656 /* This routine bumps the reference count for a ndlp structure to ensure 6657 * that one discovery thread won't free a ndlp while another discovery thread 6658 * is using it. 6659 */ 6660 struct lpfc_nodelist * 6661 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6662 { 6663 unsigned long flags; 6664 6665 if (ndlp) { 6666 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6667 "node get: did:x%x flg:x%x refcnt:x%x", 6668 ndlp->nlp_DID, ndlp->nlp_flag, 6669 kref_read(&ndlp->kref)); 6670 6671 /* The check of ndlp usage to prevent incrementing the 6672 * ndlp reference count that is in the process of being 6673 * released. 6674 */ 6675 spin_lock_irqsave(&ndlp->lock, flags); 6676 if (!kref_get_unless_zero(&ndlp->kref)) { 6677 spin_unlock_irqrestore(&ndlp->lock, flags); 6678 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6679 "0276 %s: ndlp:x%px refcnt:%d\n", 6680 __func__, (void *)ndlp, kref_read(&ndlp->kref)); 6681 return NULL; 6682 } 6683 spin_unlock_irqrestore(&ndlp->lock, flags); 6684 } else { 6685 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__); 6686 } 6687 6688 return ndlp; 6689 } 6690 6691 /* This routine decrements the reference count for a ndlp structure. If the 6692 * count goes to 0, this indicates the associated nodelist should be freed. 6693 */ 6694 int 6695 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6696 { 6697 if (ndlp) { 6698 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6699 "node put: did:x%x flg:x%x refcnt:x%x", 6700 ndlp->nlp_DID, ndlp->nlp_flag, 6701 kref_read(&ndlp->kref)); 6702 } else { 6703 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__); 6704 } 6705 6706 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0; 6707 } 6708 6709 /* This routine free's the specified nodelist if it is not in use 6710 * by any other discovery thread. This routine returns 1 if the 6711 * ndlp has been freed. A return value of 0 indicates the ndlp is 6712 * not yet been released. 6713 */ 6714 int 6715 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6716 { 6717 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6718 "node not used: did:x%x flg:x%x refcnt:x%x", 6719 ndlp->nlp_DID, ndlp->nlp_flag, 6720 kref_read(&ndlp->kref)); 6721 6722 if (kref_read(&ndlp->kref) == 1) 6723 if (lpfc_nlp_put(ndlp)) 6724 return 1; 6725 return 0; 6726 } 6727 6728 /** 6729 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6730 * @phba: Pointer to hba context object. 6731 * 6732 * This function iterate through all FC nodes associated 6733 * will all vports to check if there is any node with 6734 * fc_rports associated with it. If there is an fc_rport 6735 * associated with the node, then the node is either in 6736 * discovered state or its devloss_timer is pending. 6737 */ 6738 static int 6739 lpfc_fcf_inuse(struct lpfc_hba *phba) 6740 { 6741 struct lpfc_vport **vports; 6742 int i, ret = 0; 6743 struct lpfc_nodelist *ndlp; 6744 struct Scsi_Host *shost; 6745 6746 vports = lpfc_create_vport_work_array(phba); 6747 6748 /* If driver cannot allocate memory, indicate fcf is in use */ 6749 if (!vports) 6750 return 1; 6751 6752 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6753 shost = lpfc_shost_from_vport(vports[i]); 6754 spin_lock_irq(shost->host_lock); 6755 /* 6756 * IF the CVL_RCVD bit is not set then we have sent the 6757 * flogi. 6758 * If dev_loss fires while we are waiting we do not want to 6759 * unreg the fcf. 6760 */ 6761 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6762 spin_unlock_irq(shost->host_lock); 6763 ret = 1; 6764 goto out; 6765 } 6766 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6767 if (ndlp->rport && 6768 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6769 ret = 1; 6770 spin_unlock_irq(shost->host_lock); 6771 goto out; 6772 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6773 ret = 1; 6774 lpfc_printf_log(phba, KERN_INFO, 6775 LOG_NODE | LOG_DISCOVERY, 6776 "2624 RPI %x DID %x flag %x " 6777 "still logged in\n", 6778 ndlp->nlp_rpi, ndlp->nlp_DID, 6779 ndlp->nlp_flag); 6780 } 6781 } 6782 spin_unlock_irq(shost->host_lock); 6783 } 6784 out: 6785 lpfc_destroy_vport_work_array(phba, vports); 6786 return ret; 6787 } 6788 6789 /** 6790 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6791 * @phba: Pointer to hba context object. 6792 * @mboxq: Pointer to mailbox object. 6793 * 6794 * This function frees memory associated with the mailbox command. 6795 */ 6796 void 6797 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6798 { 6799 struct lpfc_vport *vport = mboxq->vport; 6800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6801 6802 if (mboxq->u.mb.mbxStatus) { 6803 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6804 "2555 UNREG_VFI mbxStatus error x%x " 6805 "HBA state x%x\n", 6806 mboxq->u.mb.mbxStatus, vport->port_state); 6807 } 6808 spin_lock_irq(shost->host_lock); 6809 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6810 spin_unlock_irq(shost->host_lock); 6811 mempool_free(mboxq, phba->mbox_mem_pool); 6812 return; 6813 } 6814 6815 /** 6816 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6817 * @phba: Pointer to hba context object. 6818 * @mboxq: Pointer to mailbox object. 6819 * 6820 * This function frees memory associated with the mailbox command. 6821 */ 6822 static void 6823 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6824 { 6825 struct lpfc_vport *vport = mboxq->vport; 6826 6827 if (mboxq->u.mb.mbxStatus) { 6828 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6829 "2550 UNREG_FCFI mbxStatus error x%x " 6830 "HBA state x%x\n", 6831 mboxq->u.mb.mbxStatus, vport->port_state); 6832 } 6833 mempool_free(mboxq, phba->mbox_mem_pool); 6834 return; 6835 } 6836 6837 /** 6838 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6839 * @phba: Pointer to hba context object. 6840 * 6841 * This function prepare the HBA for unregistering the currently registered 6842 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6843 * VFIs. 6844 */ 6845 int 6846 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6847 { 6848 struct lpfc_vport **vports; 6849 struct lpfc_nodelist *ndlp; 6850 struct Scsi_Host *shost; 6851 int i = 0, rc; 6852 6853 /* Unregister RPIs */ 6854 if (lpfc_fcf_inuse(phba)) 6855 lpfc_unreg_hba_rpis(phba); 6856 6857 /* At this point, all discovery is aborted */ 6858 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6859 6860 /* Unregister VPIs */ 6861 vports = lpfc_create_vport_work_array(phba); 6862 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6863 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6864 /* Stop FLOGI/FDISC retries */ 6865 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6866 if (ndlp) 6867 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6868 lpfc_cleanup_pending_mbox(vports[i]); 6869 if (phba->sli_rev == LPFC_SLI_REV4) 6870 lpfc_sli4_unreg_all_rpis(vports[i]); 6871 lpfc_mbx_unreg_vpi(vports[i]); 6872 shost = lpfc_shost_from_vport(vports[i]); 6873 spin_lock_irq(shost->host_lock); 6874 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6875 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6876 spin_unlock_irq(shost->host_lock); 6877 } 6878 lpfc_destroy_vport_work_array(phba, vports); 6879 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6880 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6881 if (ndlp) 6882 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6883 lpfc_cleanup_pending_mbox(phba->pport); 6884 if (phba->sli_rev == LPFC_SLI_REV4) 6885 lpfc_sli4_unreg_all_rpis(phba->pport); 6886 lpfc_mbx_unreg_vpi(phba->pport); 6887 shost = lpfc_shost_from_vport(phba->pport); 6888 spin_lock_irq(shost->host_lock); 6889 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6890 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6891 spin_unlock_irq(shost->host_lock); 6892 } 6893 6894 /* Cleanup any outstanding ELS commands */ 6895 lpfc_els_flush_all_cmd(phba); 6896 6897 /* Unregister the physical port VFI */ 6898 rc = lpfc_issue_unreg_vfi(phba->pport); 6899 return rc; 6900 } 6901 6902 /** 6903 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6904 * @phba: Pointer to hba context object. 6905 * 6906 * This function issues synchronous unregister FCF mailbox command to HBA to 6907 * unregister the currently registered FCF record. The driver does not reset 6908 * the driver FCF usage state flags. 6909 * 6910 * Return 0 if successfully issued, none-zero otherwise. 6911 */ 6912 int 6913 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6914 { 6915 LPFC_MBOXQ_t *mbox; 6916 int rc; 6917 6918 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6919 if (!mbox) { 6920 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6921 "2551 UNREG_FCFI mbox allocation failed" 6922 "HBA state x%x\n", phba->pport->port_state); 6923 return -ENOMEM; 6924 } 6925 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6926 mbox->vport = phba->pport; 6927 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6928 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6929 6930 if (rc == MBX_NOT_FINISHED) { 6931 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6932 "2552 Unregister FCFI command failed rc x%x " 6933 "HBA state x%x\n", 6934 rc, phba->pport->port_state); 6935 return -EINVAL; 6936 } 6937 return 0; 6938 } 6939 6940 /** 6941 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6942 * @phba: Pointer to hba context object. 6943 * 6944 * This function unregisters the currently reigstered FCF. This function 6945 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6946 */ 6947 void 6948 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6949 { 6950 int rc; 6951 6952 /* Preparation for unregistering fcf */ 6953 rc = lpfc_unregister_fcf_prep(phba); 6954 if (rc) { 6955 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6956 "2748 Failed to prepare for unregistering " 6957 "HBA's FCF record: rc=%d\n", rc); 6958 return; 6959 } 6960 6961 /* Now, unregister FCF record and reset HBA FCF state */ 6962 rc = lpfc_sli4_unregister_fcf(phba); 6963 if (rc) 6964 return; 6965 /* Reset HBA FCF states after successful unregister FCF */ 6966 phba->fcf.fcf_flag = 0; 6967 phba->fcf.current_rec.flag = 0; 6968 6969 /* 6970 * If driver is not unloading, check if there is any other 6971 * FCF record that can be used for discovery. 6972 */ 6973 if ((phba->pport->load_flag & FC_UNLOADING) || 6974 (phba->link_state < LPFC_LINK_UP)) 6975 return; 6976 6977 /* This is considered as the initial FCF discovery scan */ 6978 spin_lock_irq(&phba->hbalock); 6979 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6980 spin_unlock_irq(&phba->hbalock); 6981 6982 /* Reset FCF roundrobin bmask for new discovery */ 6983 lpfc_sli4_clear_fcf_rr_bmask(phba); 6984 6985 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6986 6987 if (rc) { 6988 spin_lock_irq(&phba->hbalock); 6989 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6990 spin_unlock_irq(&phba->hbalock); 6991 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 6992 "2553 lpfc_unregister_unused_fcf failed " 6993 "to read FCF record HBA state x%x\n", 6994 phba->pport->port_state); 6995 } 6996 } 6997 6998 /** 6999 * lpfc_unregister_fcf - Unregister the currently registered fcf record 7000 * @phba: Pointer to hba context object. 7001 * 7002 * This function just unregisters the currently reigstered FCF. It does not 7003 * try to find another FCF for discovery. 7004 */ 7005 void 7006 lpfc_unregister_fcf(struct lpfc_hba *phba) 7007 { 7008 int rc; 7009 7010 /* Preparation for unregistering fcf */ 7011 rc = lpfc_unregister_fcf_prep(phba); 7012 if (rc) { 7013 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7014 "2749 Failed to prepare for unregistering " 7015 "HBA's FCF record: rc=%d\n", rc); 7016 return; 7017 } 7018 7019 /* Now, unregister FCF record and reset HBA FCF state */ 7020 rc = lpfc_sli4_unregister_fcf(phba); 7021 if (rc) 7022 return; 7023 /* Set proper HBA FCF states after successful unregister FCF */ 7024 spin_lock_irq(&phba->hbalock); 7025 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 7026 spin_unlock_irq(&phba->hbalock); 7027 } 7028 7029 /** 7030 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 7031 * @phba: Pointer to hba context object. 7032 * 7033 * This function check if there are any connected remote port for the FCF and 7034 * if all the devices are disconnected, this function unregister FCFI. 7035 * This function also tries to use another FCF for discovery. 7036 */ 7037 void 7038 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 7039 { 7040 /* 7041 * If HBA is not running in FIP mode, if HBA does not support 7042 * FCoE, if FCF discovery is ongoing, or if FCF has not been 7043 * registered, do nothing. 7044 */ 7045 spin_lock_irq(&phba->hbalock); 7046 if (!(phba->hba_flag & HBA_FCOE_MODE) || 7047 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 7048 !(phba->hba_flag & HBA_FIP_SUPPORT) || 7049 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 7050 (phba->pport->port_state == LPFC_FLOGI)) { 7051 spin_unlock_irq(&phba->hbalock); 7052 return; 7053 } 7054 spin_unlock_irq(&phba->hbalock); 7055 7056 if (lpfc_fcf_inuse(phba)) 7057 return; 7058 7059 lpfc_unregister_fcf_rescan(phba); 7060 } 7061 7062 /** 7063 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 7064 * @phba: Pointer to hba context object. 7065 * @buff: Buffer containing the FCF connection table as in the config 7066 * region. 7067 * This function create driver data structure for the FCF connection 7068 * record table read from config region 23. 7069 */ 7070 static void 7071 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 7072 uint8_t *buff) 7073 { 7074 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 7075 struct lpfc_fcf_conn_hdr *conn_hdr; 7076 struct lpfc_fcf_conn_rec *conn_rec; 7077 uint32_t record_count; 7078 int i; 7079 7080 /* Free the current connect table */ 7081 list_for_each_entry_safe(conn_entry, next_conn_entry, 7082 &phba->fcf_conn_rec_list, list) { 7083 list_del_init(&conn_entry->list); 7084 kfree(conn_entry); 7085 } 7086 7087 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 7088 record_count = conn_hdr->length * sizeof(uint32_t)/ 7089 sizeof(struct lpfc_fcf_conn_rec); 7090 7091 conn_rec = (struct lpfc_fcf_conn_rec *) 7092 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 7093 7094 for (i = 0; i < record_count; i++) { 7095 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 7096 continue; 7097 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 7098 GFP_KERNEL); 7099 if (!conn_entry) { 7100 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7101 "2566 Failed to allocate connection" 7102 " table entry\n"); 7103 return; 7104 } 7105 7106 memcpy(&conn_entry->conn_rec, &conn_rec[i], 7107 sizeof(struct lpfc_fcf_conn_rec)); 7108 list_add_tail(&conn_entry->list, 7109 &phba->fcf_conn_rec_list); 7110 } 7111 7112 if (!list_empty(&phba->fcf_conn_rec_list)) { 7113 i = 0; 7114 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 7115 list) { 7116 conn_rec = &conn_entry->conn_rec; 7117 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7118 "3345 FCF connection list rec[%02d]: " 7119 "flags:x%04x, vtag:x%04x, " 7120 "fabric_name:x%02x:%02x:%02x:%02x:" 7121 "%02x:%02x:%02x:%02x, " 7122 "switch_name:x%02x:%02x:%02x:%02x:" 7123 "%02x:%02x:%02x:%02x\n", i++, 7124 conn_rec->flags, conn_rec->vlan_tag, 7125 conn_rec->fabric_name[0], 7126 conn_rec->fabric_name[1], 7127 conn_rec->fabric_name[2], 7128 conn_rec->fabric_name[3], 7129 conn_rec->fabric_name[4], 7130 conn_rec->fabric_name[5], 7131 conn_rec->fabric_name[6], 7132 conn_rec->fabric_name[7], 7133 conn_rec->switch_name[0], 7134 conn_rec->switch_name[1], 7135 conn_rec->switch_name[2], 7136 conn_rec->switch_name[3], 7137 conn_rec->switch_name[4], 7138 conn_rec->switch_name[5], 7139 conn_rec->switch_name[6], 7140 conn_rec->switch_name[7]); 7141 } 7142 } 7143 } 7144 7145 /** 7146 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 7147 * @phba: Pointer to hba context object. 7148 * @buff: Buffer containing the FCoE parameter data structure. 7149 * 7150 * This function update driver data structure with config 7151 * parameters read from config region 23. 7152 */ 7153 static void 7154 lpfc_read_fcoe_param(struct lpfc_hba *phba, 7155 uint8_t *buff) 7156 { 7157 struct lpfc_fip_param_hdr *fcoe_param_hdr; 7158 struct lpfc_fcoe_params *fcoe_param; 7159 7160 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 7161 buff; 7162 fcoe_param = (struct lpfc_fcoe_params *) 7163 (buff + sizeof(struct lpfc_fip_param_hdr)); 7164 7165 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 7166 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 7167 return; 7168 7169 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 7170 phba->valid_vlan = 1; 7171 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 7172 0xFFF; 7173 } 7174 7175 phba->fc_map[0] = fcoe_param->fc_map[0]; 7176 phba->fc_map[1] = fcoe_param->fc_map[1]; 7177 phba->fc_map[2] = fcoe_param->fc_map[2]; 7178 return; 7179 } 7180 7181 /** 7182 * lpfc_get_rec_conf23 - Get a record type in config region data. 7183 * @buff: Buffer containing config region 23 data. 7184 * @size: Size of the data buffer. 7185 * @rec_type: Record type to be searched. 7186 * 7187 * This function searches config region data to find the beginning 7188 * of the record specified by record_type. If record found, this 7189 * function return pointer to the record else return NULL. 7190 */ 7191 static uint8_t * 7192 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 7193 { 7194 uint32_t offset = 0, rec_length; 7195 7196 if ((buff[0] == LPFC_REGION23_LAST_REC) || 7197 (size < sizeof(uint32_t))) 7198 return NULL; 7199 7200 rec_length = buff[offset + 1]; 7201 7202 /* 7203 * One TLV record has one word header and number of data words 7204 * specified in the rec_length field of the record header. 7205 */ 7206 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 7207 <= size) { 7208 if (buff[offset] == rec_type) 7209 return &buff[offset]; 7210 7211 if (buff[offset] == LPFC_REGION23_LAST_REC) 7212 return NULL; 7213 7214 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 7215 rec_length = buff[offset + 1]; 7216 } 7217 return NULL; 7218 } 7219 7220 /** 7221 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 7222 * @phba: Pointer to lpfc_hba data structure. 7223 * @buff: Buffer containing config region 23 data. 7224 * @size: Size of the data buffer. 7225 * 7226 * This function parses the FCoE config parameters in config region 23 and 7227 * populate driver data structure with the parameters. 7228 */ 7229 void 7230 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 7231 uint8_t *buff, 7232 uint32_t size) 7233 { 7234 uint32_t offset = 0; 7235 uint8_t *rec_ptr; 7236 7237 /* 7238 * If data size is less than 2 words signature and version cannot be 7239 * verified. 7240 */ 7241 if (size < 2*sizeof(uint32_t)) 7242 return; 7243 7244 /* Check the region signature first */ 7245 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 7246 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7247 "2567 Config region 23 has bad signature\n"); 7248 return; 7249 } 7250 7251 offset += 4; 7252 7253 /* Check the data structure version */ 7254 if (buff[offset] != LPFC_REGION23_VERSION) { 7255 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 7256 "2568 Config region 23 has bad version\n"); 7257 return; 7258 } 7259 offset += 4; 7260 7261 /* Read FCoE param record */ 7262 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7263 size - offset, FCOE_PARAM_TYPE); 7264 if (rec_ptr) 7265 lpfc_read_fcoe_param(phba, rec_ptr); 7266 7267 /* Read FCF connection table */ 7268 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7269 size - offset, FCOE_CONN_TBL_TYPE); 7270 if (rec_ptr) 7271 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7272 7273 } 7274