1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 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 <linux/nvme-fc-driver.h> 40 41 #include "lpfc_hw4.h" 42 #include "lpfc_hw.h" 43 #include "lpfc_nl.h" 44 #include "lpfc_disc.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc.h" 48 #include "lpfc_scsi.h" 49 #include "lpfc_nvme.h" 50 #include "lpfc_logmsg.h" 51 #include "lpfc_crtn.h" 52 #include "lpfc_vport.h" 53 #include "lpfc_debugfs.h" 54 55 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 56 static uint8_t lpfcAlpaArray[] = { 57 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 58 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 59 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 60 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 61 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 62 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 63 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 64 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 65 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 66 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 67 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 68 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 69 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 70 }; 71 72 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 73 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 74 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 75 static int lpfc_fcf_inuse(struct lpfc_hba *); 76 77 void 78 lpfc_terminate_rport_io(struct fc_rport *rport) 79 { 80 struct lpfc_rport_data *rdata; 81 struct lpfc_nodelist * ndlp; 82 struct lpfc_hba *phba; 83 84 rdata = rport->dd_data; 85 ndlp = rdata->pnode; 86 87 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 88 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 89 printk(KERN_ERR "Cannot find remote node" 90 " to terminate I/O Data x%x\n", 91 rport->port_id); 92 return; 93 } 94 95 phba = ndlp->phba; 96 97 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 98 "rport terminate: sid:x%x did:x%x flg:x%x", 99 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 100 101 if (ndlp->nlp_sid != NLP_NO_SID) { 102 lpfc_sli_abort_iocb(ndlp->vport, 103 &phba->sli.sli3_ring[LPFC_FCP_RING], 104 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 105 } 106 } 107 108 /* 109 * This function will be called when dev_loss_tmo fire. 110 */ 111 void 112 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 113 { 114 struct lpfc_rport_data *rdata; 115 struct lpfc_nodelist * ndlp; 116 struct lpfc_vport *vport; 117 struct Scsi_Host *shost; 118 struct lpfc_hba *phba; 119 struct lpfc_work_evt *evtp; 120 int put_node; 121 int put_rport; 122 unsigned long iflags; 123 124 rdata = rport->dd_data; 125 ndlp = rdata->pnode; 126 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 127 return; 128 129 vport = ndlp->vport; 130 phba = vport->phba; 131 132 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 133 "rport devlosscb: sid:x%x did:x%x flg:x%x", 134 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 135 136 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 137 "3181 dev_loss_callbk x%06x, rport x%px flg x%x\n", 138 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 139 140 /* Don't defer this if we are in the process of deleting the vport 141 * or unloading the driver. The unload will cleanup the node 142 * appropriately we just need to cleanup the ndlp rport info here. 143 */ 144 if (vport->load_flag & FC_UNLOADING) { 145 put_node = rdata->pnode != NULL; 146 put_rport = ndlp->rport != NULL; 147 rdata->pnode = NULL; 148 ndlp->rport = NULL; 149 if (put_node) 150 lpfc_nlp_put(ndlp); 151 if (put_rport) 152 put_device(&rport->dev); 153 return; 154 } 155 156 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 157 return; 158 159 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 160 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 161 "6789 rport name %llx != node port name %llx", 162 rport->port_name, 163 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 164 165 evtp = &ndlp->dev_loss_evt; 166 167 if (!list_empty(&evtp->evt_listp)) { 168 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 169 "6790 rport name %llx dev_loss_evt pending", 170 rport->port_name); 171 return; 172 } 173 174 shost = lpfc_shost_from_vport(vport); 175 spin_lock_irqsave(shost->host_lock, iflags); 176 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 177 spin_unlock_irqrestore(shost->host_lock, iflags); 178 179 /* We need to hold the node by incrementing the reference 180 * count until this queued work is done 181 */ 182 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 183 184 spin_lock_irqsave(&phba->hbalock, iflags); 185 if (evtp->evt_arg1) { 186 evtp->evt = LPFC_EVT_DEV_LOSS; 187 list_add_tail(&evtp->evt_listp, &phba->work_list); 188 lpfc_worker_wake_up(phba); 189 } 190 spin_unlock_irqrestore(&phba->hbalock, iflags); 191 192 return; 193 } 194 195 /** 196 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 197 * @ndlp: Pointer to remote node object. 198 * 199 * This function is called from the worker thread when devloss timeout timer 200 * expires. For SLI4 host, this routine shall return 1 when at lease one 201 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 202 * routine shall return 0 when there is no remote node is still in use of FCF 203 * when devloss timeout happened to this @ndlp. 204 **/ 205 static int 206 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 207 { 208 struct lpfc_rport_data *rdata; 209 struct fc_rport *rport; 210 struct lpfc_vport *vport; 211 struct lpfc_hba *phba; 212 struct Scsi_Host *shost; 213 uint8_t *name; 214 int put_node; 215 int warn_on = 0; 216 int fcf_inuse = 0; 217 unsigned long iflags; 218 219 rport = ndlp->rport; 220 vport = ndlp->vport; 221 shost = lpfc_shost_from_vport(vport); 222 223 spin_lock_irqsave(shost->host_lock, iflags); 224 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 225 spin_unlock_irqrestore(shost->host_lock, iflags); 226 227 if (!rport) 228 return fcf_inuse; 229 230 name = (uint8_t *) &ndlp->nlp_portname; 231 phba = vport->phba; 232 233 if (phba->sli_rev == LPFC_SLI_REV4) 234 fcf_inuse = lpfc_fcf_inuse(phba); 235 236 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 237 "rport devlosstmo:did:x%x type:x%x id:x%x", 238 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 239 240 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 241 "3182 dev_loss_tmo_handler x%06x, rport x%px flg x%x\n", 242 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 243 244 /* 245 * lpfc_nlp_remove if reached with dangling rport drops the 246 * reference. To make sure that does not happen clear rport 247 * pointer in ndlp before lpfc_nlp_put. 248 */ 249 rdata = rport->dd_data; 250 251 /* Don't defer this if we are in the process of deleting the vport 252 * or unloading the driver. The unload will cleanup the node 253 * appropriately we just need to cleanup the ndlp rport info here. 254 */ 255 if (vport->load_flag & FC_UNLOADING) { 256 if (ndlp->nlp_sid != NLP_NO_SID) { 257 /* flush the target */ 258 lpfc_sli_abort_iocb(vport, 259 &phba->sli.sli3_ring[LPFC_FCP_RING], 260 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 261 } 262 put_node = rdata->pnode != NULL; 263 rdata->pnode = NULL; 264 ndlp->rport = NULL; 265 if (put_node) 266 lpfc_nlp_put(ndlp); 267 put_device(&rport->dev); 268 269 return fcf_inuse; 270 } 271 272 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 273 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 274 "0284 Devloss timeout Ignored on " 275 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 276 "NPort x%x\n", 277 *name, *(name+1), *(name+2), *(name+3), 278 *(name+4), *(name+5), *(name+6), *(name+7), 279 ndlp->nlp_DID); 280 return fcf_inuse; 281 } 282 283 put_node = rdata->pnode != NULL; 284 rdata->pnode = NULL; 285 ndlp->rport = NULL; 286 if (put_node) 287 lpfc_nlp_put(ndlp); 288 put_device(&rport->dev); 289 290 if (ndlp->nlp_type & NLP_FABRIC) 291 return fcf_inuse; 292 293 if (ndlp->nlp_sid != NLP_NO_SID) { 294 warn_on = 1; 295 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 296 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 297 } 298 299 if (warn_on) { 300 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 301 "0203 Devloss timeout on " 302 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 303 "NPort x%06x Data: x%x x%x x%x\n", 304 *name, *(name+1), *(name+2), *(name+3), 305 *(name+4), *(name+5), *(name+6), *(name+7), 306 ndlp->nlp_DID, ndlp->nlp_flag, 307 ndlp->nlp_state, ndlp->nlp_rpi); 308 } else { 309 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 310 "0204 Devloss timeout on " 311 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 312 "NPort x%06x Data: x%x x%x x%x\n", 313 *name, *(name+1), *(name+2), *(name+3), 314 *(name+4), *(name+5), *(name+6), *(name+7), 315 ndlp->nlp_DID, ndlp->nlp_flag, 316 ndlp->nlp_state, ndlp->nlp_rpi); 317 } 318 319 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 320 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 321 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 322 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 323 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 324 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 325 326 return fcf_inuse; 327 } 328 329 /** 330 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 331 * @phba: Pointer to hba context object. 332 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 333 * @nlp_did: remote node identifer with devloss timeout. 334 * 335 * This function is called from the worker thread after invoking devloss 336 * timeout handler and releasing the reference count for the ndlp with 337 * which the devloss timeout was handled for SLI4 host. For the devloss 338 * timeout of the last remote node which had been in use of FCF, when this 339 * routine is invoked, it shall be guaranteed that none of the remote are 340 * in-use of FCF. When devloss timeout to the last remote using the FCF, 341 * if the FIP engine is neither in FCF table scan process nor roundrobin 342 * failover process, the in-use FCF shall be unregistered. If the FIP 343 * engine is in FCF discovery process, the devloss timeout state shall 344 * be set for either the FCF table scan process or roundrobin failover 345 * process to unregister the in-use FCF. 346 **/ 347 static void 348 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 349 uint32_t nlp_did) 350 { 351 /* If devloss timeout happened to a remote node when FCF had no 352 * longer been in-use, do nothing. 353 */ 354 if (!fcf_inuse) 355 return; 356 357 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 358 spin_lock_irq(&phba->hbalock); 359 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 360 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 361 spin_unlock_irq(&phba->hbalock); 362 return; 363 } 364 phba->hba_flag |= HBA_DEVLOSS_TMO; 365 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 366 "2847 Last remote node (x%x) using " 367 "FCF devloss tmo\n", nlp_did); 368 } 369 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 370 spin_unlock_irq(&phba->hbalock); 371 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 372 "2868 Devloss tmo to FCF rediscovery " 373 "in progress\n"); 374 return; 375 } 376 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 377 spin_unlock_irq(&phba->hbalock); 378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 379 "2869 Devloss tmo to idle FIP engine, " 380 "unreg in-use FCF and rescan.\n"); 381 /* Unregister in-use FCF and rescan */ 382 lpfc_unregister_fcf_rescan(phba); 383 return; 384 } 385 spin_unlock_irq(&phba->hbalock); 386 if (phba->hba_flag & FCF_TS_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2870 FCF table scan in progress\n"); 389 if (phba->hba_flag & FCF_RR_INPROG) 390 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 391 "2871 FLOGI roundrobin FCF failover " 392 "in progress\n"); 393 } 394 lpfc_unregister_unused_fcf(phba); 395 } 396 397 /** 398 * lpfc_alloc_fast_evt - Allocates data structure for posting event 399 * @phba: Pointer to hba context object. 400 * 401 * This function is called from the functions which need to post 402 * events from interrupt context. This function allocates data 403 * structure required for posting event. It also keeps track of 404 * number of events pending and prevent event storm when there are 405 * too many events. 406 **/ 407 struct lpfc_fast_path_event * 408 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 409 struct lpfc_fast_path_event *ret; 410 411 /* If there are lot of fast event do not exhaust memory due to this */ 412 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 413 return NULL; 414 415 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 416 GFP_ATOMIC); 417 if (ret) { 418 atomic_inc(&phba->fast_event_count); 419 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 420 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 421 } 422 return ret; 423 } 424 425 /** 426 * lpfc_free_fast_evt - Frees event data structure 427 * @phba: Pointer to hba context object. 428 * @evt: Event object which need to be freed. 429 * 430 * This function frees the data structure required for posting 431 * events. 432 **/ 433 void 434 lpfc_free_fast_evt(struct lpfc_hba *phba, 435 struct lpfc_fast_path_event *evt) { 436 437 atomic_dec(&phba->fast_event_count); 438 kfree(evt); 439 } 440 441 /** 442 * lpfc_send_fastpath_evt - Posts events generated from fast path 443 * @phba: Pointer to hba context object. 444 * @evtp: Event data structure. 445 * 446 * This function is called from worker thread, when the interrupt 447 * context need to post an event. This function posts the event 448 * to fc transport netlink interface. 449 **/ 450 static void 451 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 452 struct lpfc_work_evt *evtp) 453 { 454 unsigned long evt_category, evt_sub_category; 455 struct lpfc_fast_path_event *fast_evt_data; 456 char *evt_data; 457 uint32_t evt_data_size; 458 struct Scsi_Host *shost; 459 460 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 461 work_evt); 462 463 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 464 evt_sub_category = (unsigned long) fast_evt_data->un. 465 fabric_evt.subcategory; 466 shost = lpfc_shost_from_vport(fast_evt_data->vport); 467 if (evt_category == FC_REG_FABRIC_EVENT) { 468 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 469 evt_data = (char *) &fast_evt_data->un.read_check_error; 470 evt_data_size = sizeof(fast_evt_data->un. 471 read_check_error); 472 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 473 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 474 evt_data = (char *) &fast_evt_data->un.fabric_evt; 475 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 476 } else { 477 lpfc_free_fast_evt(phba, fast_evt_data); 478 return; 479 } 480 } else if (evt_category == FC_REG_SCSI_EVENT) { 481 switch (evt_sub_category) { 482 case LPFC_EVENT_QFULL: 483 case LPFC_EVENT_DEVBSY: 484 evt_data = (char *) &fast_evt_data->un.scsi_evt; 485 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 486 break; 487 case LPFC_EVENT_CHECK_COND: 488 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 489 evt_data_size = sizeof(fast_evt_data->un. 490 check_cond_evt); 491 break; 492 case LPFC_EVENT_VARQUEDEPTH: 493 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 494 evt_data_size = sizeof(fast_evt_data->un. 495 queue_depth_evt); 496 break; 497 default: 498 lpfc_free_fast_evt(phba, fast_evt_data); 499 return; 500 } 501 } else { 502 lpfc_free_fast_evt(phba, fast_evt_data); 503 return; 504 } 505 506 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 507 fc_host_post_vendor_event(shost, 508 fc_get_event_number(), 509 evt_data_size, 510 evt_data, 511 LPFC_NL_VENDOR_ID); 512 513 lpfc_free_fast_evt(phba, fast_evt_data); 514 return; 515 } 516 517 static void 518 lpfc_work_list_done(struct lpfc_hba *phba) 519 { 520 struct lpfc_work_evt *evtp = NULL; 521 struct lpfc_nodelist *ndlp; 522 int free_evt; 523 int fcf_inuse; 524 uint32_t nlp_did; 525 526 spin_lock_irq(&phba->hbalock); 527 while (!list_empty(&phba->work_list)) { 528 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 529 evt_listp); 530 spin_unlock_irq(&phba->hbalock); 531 free_evt = 1; 532 switch (evtp->evt) { 533 case LPFC_EVT_ELS_RETRY: 534 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 535 lpfc_els_retry_delay_handler(ndlp); 536 free_evt = 0; /* evt is part of ndlp */ 537 /* decrement the node reference count held 538 * for this queued work 539 */ 540 lpfc_nlp_put(ndlp); 541 break; 542 case LPFC_EVT_DEV_LOSS: 543 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 544 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 545 free_evt = 0; 546 /* decrement the node reference count held for 547 * this queued work 548 */ 549 nlp_did = ndlp->nlp_DID; 550 lpfc_nlp_put(ndlp); 551 if (phba->sli_rev == LPFC_SLI_REV4) 552 lpfc_sli4_post_dev_loss_tmo_handler(phba, 553 fcf_inuse, 554 nlp_did); 555 break; 556 case LPFC_EVT_ONLINE: 557 if (phba->link_state < LPFC_LINK_DOWN) 558 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 559 else 560 *(int *) (evtp->evt_arg1) = 0; 561 complete((struct completion *)(evtp->evt_arg2)); 562 break; 563 case LPFC_EVT_OFFLINE_PREP: 564 if (phba->link_state >= LPFC_LINK_DOWN) 565 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 566 *(int *)(evtp->evt_arg1) = 0; 567 complete((struct completion *)(evtp->evt_arg2)); 568 break; 569 case LPFC_EVT_OFFLINE: 570 lpfc_offline(phba); 571 lpfc_sli_brdrestart(phba); 572 *(int *)(evtp->evt_arg1) = 573 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 574 lpfc_unblock_mgmt_io(phba); 575 complete((struct completion *)(evtp->evt_arg2)); 576 break; 577 case LPFC_EVT_WARM_START: 578 lpfc_offline(phba); 579 lpfc_reset_barrier(phba); 580 lpfc_sli_brdreset(phba); 581 lpfc_hba_down_post(phba); 582 *(int *)(evtp->evt_arg1) = 583 lpfc_sli_brdready(phba, HS_MBRDY); 584 lpfc_unblock_mgmt_io(phba); 585 complete((struct completion *)(evtp->evt_arg2)); 586 break; 587 case LPFC_EVT_KILL: 588 lpfc_offline(phba); 589 *(int *)(evtp->evt_arg1) 590 = (phba->pport->stopped) 591 ? 0 : lpfc_sli_brdkill(phba); 592 lpfc_unblock_mgmt_io(phba); 593 complete((struct completion *)(evtp->evt_arg2)); 594 break; 595 case LPFC_EVT_FASTPATH_MGMT_EVT: 596 lpfc_send_fastpath_evt(phba, evtp); 597 free_evt = 0; 598 break; 599 case LPFC_EVT_RESET_HBA: 600 if (!(phba->pport->load_flag & FC_UNLOADING)) 601 lpfc_reset_hba(phba); 602 break; 603 } 604 if (free_evt) 605 kfree(evtp); 606 spin_lock_irq(&phba->hbalock); 607 } 608 spin_unlock_irq(&phba->hbalock); 609 610 } 611 612 static void 613 lpfc_work_done(struct lpfc_hba *phba) 614 { 615 struct lpfc_sli_ring *pring; 616 uint32_t ha_copy, status, control, work_port_events; 617 struct lpfc_vport **vports; 618 struct lpfc_vport *vport; 619 int i; 620 621 spin_lock_irq(&phba->hbalock); 622 ha_copy = phba->work_ha; 623 phba->work_ha = 0; 624 spin_unlock_irq(&phba->hbalock); 625 626 /* First, try to post the next mailbox command to SLI4 device */ 627 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 628 lpfc_sli4_post_async_mbox(phba); 629 630 if (ha_copy & HA_ERATT) 631 /* Handle the error attention event */ 632 lpfc_handle_eratt(phba); 633 634 if (ha_copy & HA_MBATT) 635 lpfc_sli_handle_mb_event(phba); 636 637 if (ha_copy & HA_LATT) 638 lpfc_handle_latt(phba); 639 640 /* Process SLI4 events */ 641 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 642 if (phba->hba_flag & HBA_RRQ_ACTIVE) 643 lpfc_handle_rrq_active(phba); 644 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 645 lpfc_sli4_els_xri_abort_event_proc(phba); 646 if (phba->hba_flag & ASYNC_EVENT) 647 lpfc_sli4_async_event_proc(phba); 648 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 649 spin_lock_irq(&phba->hbalock); 650 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 651 spin_unlock_irq(&phba->hbalock); 652 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 653 } 654 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 655 lpfc_sli4_fcf_redisc_event_proc(phba); 656 } 657 658 vports = lpfc_create_vport_work_array(phba); 659 if (vports != NULL) 660 for (i = 0; i <= phba->max_vports; i++) { 661 /* 662 * We could have no vports in array if unloading, so if 663 * this happens then just use the pport 664 */ 665 if (vports[i] == NULL && i == 0) 666 vport = phba->pport; 667 else 668 vport = vports[i]; 669 if (vport == NULL) 670 break; 671 spin_lock_irq(&vport->work_port_lock); 672 work_port_events = vport->work_port_events; 673 vport->work_port_events &= ~work_port_events; 674 spin_unlock_irq(&vport->work_port_lock); 675 if (work_port_events & WORKER_DISC_TMO) 676 lpfc_disc_timeout_handler(vport); 677 if (work_port_events & WORKER_ELS_TMO) 678 lpfc_els_timeout_handler(vport); 679 if (work_port_events & WORKER_HB_TMO) 680 lpfc_hb_timeout_handler(phba); 681 if (work_port_events & WORKER_MBOX_TMO) 682 lpfc_mbox_timeout_handler(phba); 683 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 684 lpfc_unblock_fabric_iocbs(phba); 685 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 686 lpfc_ramp_down_queue_handler(phba); 687 if (work_port_events & WORKER_DELAYED_DISC_TMO) 688 lpfc_delayed_disc_timeout_handler(vport); 689 } 690 lpfc_destroy_vport_work_array(phba, vports); 691 692 pring = lpfc_phba_elsring(phba); 693 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 694 status >>= (4*LPFC_ELS_RING); 695 if (pring && (status & HA_RXMASK || 696 pring->flag & LPFC_DEFERRED_RING_EVENT || 697 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 698 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 699 pring->flag |= LPFC_DEFERRED_RING_EVENT; 700 /* Preserve legacy behavior. */ 701 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 702 set_bit(LPFC_DATA_READY, &phba->data_flags); 703 } else { 704 /* Driver could have abort request completed in queue 705 * when link goes down. Allow for this transition. 706 */ 707 if (phba->link_state >= LPFC_LINK_DOWN || 708 phba->link_flag & LS_MDS_LOOPBACK) { 709 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 710 lpfc_sli_handle_slow_ring_event(phba, pring, 711 (status & 712 HA_RXMASK)); 713 } 714 } 715 if (phba->sli_rev == LPFC_SLI_REV4) 716 lpfc_drain_txq(phba); 717 /* 718 * Turn on Ring interrupts 719 */ 720 if (phba->sli_rev <= LPFC_SLI_REV3) { 721 spin_lock_irq(&phba->hbalock); 722 control = readl(phba->HCregaddr); 723 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 724 lpfc_debugfs_slow_ring_trc(phba, 725 "WRK Enable ring: cntl:x%x hacopy:x%x", 726 control, ha_copy, 0); 727 728 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 729 writel(control, phba->HCregaddr); 730 readl(phba->HCregaddr); /* flush */ 731 } else { 732 lpfc_debugfs_slow_ring_trc(phba, 733 "WRK Ring ok: cntl:x%x hacopy:x%x", 734 control, ha_copy, 0); 735 } 736 spin_unlock_irq(&phba->hbalock); 737 } 738 } 739 lpfc_work_list_done(phba); 740 } 741 742 int 743 lpfc_do_work(void *p) 744 { 745 struct lpfc_hba *phba = p; 746 int rc; 747 748 set_user_nice(current, MIN_NICE); 749 current->flags |= PF_NOFREEZE; 750 phba->data_flags = 0; 751 752 while (!kthread_should_stop()) { 753 /* wait and check worker queue activities */ 754 rc = wait_event_interruptible(phba->work_waitq, 755 (test_and_clear_bit(LPFC_DATA_READY, 756 &phba->data_flags) 757 || kthread_should_stop())); 758 /* Signal wakeup shall terminate the worker thread */ 759 if (rc) { 760 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 761 "0433 Wakeup on signal: rc=x%x\n", rc); 762 break; 763 } 764 765 /* Attend pending lpfc data processing */ 766 lpfc_work_done(phba); 767 } 768 phba->worker_thread = NULL; 769 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 770 "0432 Worker thread stopped.\n"); 771 return 0; 772 } 773 774 /* 775 * This is only called to handle FC worker events. Since this a rare 776 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 777 * embedding it in the IOCB. 778 */ 779 int 780 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 781 uint32_t evt) 782 { 783 struct lpfc_work_evt *evtp; 784 unsigned long flags; 785 786 /* 787 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 788 * be queued to worker thread for processing 789 */ 790 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 791 if (!evtp) 792 return 0; 793 794 evtp->evt_arg1 = arg1; 795 evtp->evt_arg2 = arg2; 796 evtp->evt = evt; 797 798 spin_lock_irqsave(&phba->hbalock, flags); 799 list_add_tail(&evtp->evt_listp, &phba->work_list); 800 spin_unlock_irqrestore(&phba->hbalock, flags); 801 802 lpfc_worker_wake_up(phba); 803 804 return 1; 805 } 806 807 void 808 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 809 { 810 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 811 struct lpfc_hba *phba = vport->phba; 812 struct lpfc_nodelist *ndlp, *next_ndlp; 813 814 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 815 if (!NLP_CHK_NODE_ACT(ndlp)) 816 continue; 817 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 818 continue; 819 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 820 ((vport->port_type == LPFC_NPIV_PORT) && 821 (ndlp->nlp_DID == NameServer_DID))) 822 lpfc_unreg_rpi(vport, ndlp); 823 824 /* Leave Fabric nodes alone on link down */ 825 if ((phba->sli_rev < LPFC_SLI_REV4) && 826 (!remove && ndlp->nlp_type & NLP_FABRIC)) 827 continue; 828 lpfc_disc_state_machine(vport, ndlp, NULL, 829 remove 830 ? NLP_EVT_DEVICE_RM 831 : NLP_EVT_DEVICE_RECOVERY); 832 } 833 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 834 if (phba->sli_rev == LPFC_SLI_REV4) 835 lpfc_sli4_unreg_all_rpis(vport); 836 lpfc_mbx_unreg_vpi(vport); 837 spin_lock_irq(shost->host_lock); 838 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 839 spin_unlock_irq(shost->host_lock); 840 } 841 } 842 843 void 844 lpfc_port_link_failure(struct lpfc_vport *vport) 845 { 846 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 847 848 /* Cleanup any outstanding received buffers */ 849 lpfc_cleanup_rcv_buffers(vport); 850 851 /* Cleanup any outstanding RSCN activity */ 852 lpfc_els_flush_rscn(vport); 853 854 /* Cleanup any outstanding ELS commands */ 855 lpfc_els_flush_cmd(vport); 856 857 lpfc_cleanup_rpis(vport, 0); 858 859 /* Turn off discovery timer if its running */ 860 lpfc_can_disctmo(vport); 861 } 862 863 void 864 lpfc_linkdown_port(struct lpfc_vport *vport) 865 { 866 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 867 868 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 869 fc_host_post_event(shost, fc_get_event_number(), 870 FCH_EVT_LINKDOWN, 0); 871 872 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 873 "Link Down: state:x%x rtry:x%x flg:x%x", 874 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 875 876 lpfc_port_link_failure(vport); 877 878 /* Stop delayed Nport discovery */ 879 spin_lock_irq(shost->host_lock); 880 vport->fc_flag &= ~FC_DISC_DELAYED; 881 spin_unlock_irq(shost->host_lock); 882 del_timer_sync(&vport->delayed_disc_tmo); 883 } 884 885 int 886 lpfc_linkdown(struct lpfc_hba *phba) 887 { 888 struct lpfc_vport *vport = phba->pport; 889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 890 struct lpfc_vport **vports; 891 LPFC_MBOXQ_t *mb; 892 int i; 893 894 if (phba->link_state == LPFC_LINK_DOWN) 895 return 0; 896 897 /* Block all SCSI stack I/Os */ 898 lpfc_scsi_dev_block(phba); 899 900 phba->defer_flogi_acc_flag = false; 901 902 spin_lock_irq(&phba->hbalock); 903 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 904 spin_unlock_irq(&phba->hbalock); 905 if (phba->link_state > LPFC_LINK_DOWN) { 906 phba->link_state = LPFC_LINK_DOWN; 907 if (phba->sli4_hba.conf_trunk) { 908 phba->trunk_link.link0.state = 0; 909 phba->trunk_link.link1.state = 0; 910 phba->trunk_link.link2.state = 0; 911 phba->trunk_link.link3.state = 0; 912 phba->sli4_hba.link_state.logical_speed = 913 LPFC_LINK_SPEED_UNKNOWN; 914 } 915 spin_lock_irq(shost->host_lock); 916 phba->pport->fc_flag &= ~FC_LBIT; 917 spin_unlock_irq(shost->host_lock); 918 } 919 vports = lpfc_create_vport_work_array(phba); 920 if (vports != NULL) { 921 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 922 /* Issue a LINK DOWN event to all nodes */ 923 lpfc_linkdown_port(vports[i]); 924 925 vports[i]->fc_myDID = 0; 926 927 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 928 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 929 if (phba->nvmet_support) 930 lpfc_nvmet_update_targetport(phba); 931 else 932 lpfc_nvme_update_localport(vports[i]); 933 } 934 } 935 } 936 lpfc_destroy_vport_work_array(phba, vports); 937 938 /* Clean up any SLI3 firmware default rpi's */ 939 if (phba->sli_rev > LPFC_SLI_REV3) 940 goto skip_unreg_did; 941 942 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 943 if (mb) { 944 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 945 mb->vport = vport; 946 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 947 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 948 == MBX_NOT_FINISHED) { 949 mempool_free(mb, phba->mbox_mem_pool); 950 } 951 } 952 953 skip_unreg_did: 954 /* Setup myDID for link up if we are in pt2pt mode */ 955 if (phba->pport->fc_flag & FC_PT2PT) { 956 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 957 if (mb) { 958 lpfc_config_link(phba, mb); 959 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 960 mb->vport = vport; 961 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 962 == MBX_NOT_FINISHED) { 963 mempool_free(mb, phba->mbox_mem_pool); 964 } 965 } 966 spin_lock_irq(shost->host_lock); 967 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 968 phba->pport->rcv_flogi_cnt = 0; 969 spin_unlock_irq(shost->host_lock); 970 } 971 return 0; 972 } 973 974 static void 975 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 976 { 977 struct lpfc_nodelist *ndlp; 978 979 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 980 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 981 if (!NLP_CHK_NODE_ACT(ndlp)) 982 continue; 983 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 984 continue; 985 if (ndlp->nlp_type & NLP_FABRIC) { 986 /* On Linkup its safe to clean up the ndlp 987 * from Fabric connections. 988 */ 989 if (ndlp->nlp_DID != Fabric_DID) 990 lpfc_unreg_rpi(vport, ndlp); 991 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 992 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 993 /* Fail outstanding IO now since device is 994 * marked for PLOGI. 995 */ 996 lpfc_unreg_rpi(vport, ndlp); 997 } 998 } 999 } 1000 1001 static void 1002 lpfc_linkup_port(struct lpfc_vport *vport) 1003 { 1004 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1005 struct lpfc_hba *phba = vport->phba; 1006 1007 if ((vport->load_flag & FC_UNLOADING) != 0) 1008 return; 1009 1010 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1011 "Link Up: top:x%x speed:x%x flg:x%x", 1012 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1013 1014 /* If NPIV is not enabled, only bring the physical port up */ 1015 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1016 (vport != phba->pport)) 1017 return; 1018 1019 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1020 fc_host_post_event(shost, fc_get_event_number(), 1021 FCH_EVT_LINKUP, 0); 1022 1023 spin_lock_irq(shost->host_lock); 1024 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1025 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1026 vport->fc_flag |= FC_NDISC_ACTIVE; 1027 vport->fc_ns_retry = 0; 1028 spin_unlock_irq(shost->host_lock); 1029 1030 if (vport->fc_flag & FC_LBIT) 1031 lpfc_linkup_cleanup_nodes(vport); 1032 1033 } 1034 1035 static int 1036 lpfc_linkup(struct lpfc_hba *phba) 1037 { 1038 struct lpfc_vport **vports; 1039 int i; 1040 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1041 1042 phba->link_state = LPFC_LINK_UP; 1043 1044 /* Unblock fabric iocbs if they are blocked */ 1045 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1046 del_timer_sync(&phba->fabric_block_timer); 1047 1048 vports = lpfc_create_vport_work_array(phba); 1049 if (vports != NULL) 1050 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1051 lpfc_linkup_port(vports[i]); 1052 lpfc_destroy_vport_work_array(phba, vports); 1053 1054 /* Clear the pport flogi counter in case the link down was 1055 * absorbed without an ACQE. No lock here - in worker thread 1056 * and discovery is synchronized. 1057 */ 1058 spin_lock_irq(shost->host_lock); 1059 phba->pport->rcv_flogi_cnt = 0; 1060 spin_unlock_irq(shost->host_lock); 1061 1062 /* reinitialize initial FLOGI flag */ 1063 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1064 phba->defer_flogi_acc_flag = false; 1065 1066 return 0; 1067 } 1068 1069 /* 1070 * This routine handles processing a CLEAR_LA mailbox 1071 * command upon completion. It is setup in the LPFC_MBOXQ 1072 * as the completion routine when the command is 1073 * handed off to the SLI layer. SLI3 only. 1074 */ 1075 static void 1076 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1077 { 1078 struct lpfc_vport *vport = pmb->vport; 1079 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1080 struct lpfc_sli *psli = &phba->sli; 1081 MAILBOX_t *mb = &pmb->u.mb; 1082 uint32_t control; 1083 1084 /* Since we don't do discovery right now, turn these off here */ 1085 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1086 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1087 1088 /* Check for error */ 1089 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1090 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1091 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1092 "0320 CLEAR_LA mbxStatus error x%x hba " 1093 "state x%x\n", 1094 mb->mbxStatus, vport->port_state); 1095 phba->link_state = LPFC_HBA_ERROR; 1096 goto out; 1097 } 1098 1099 if (vport->port_type == LPFC_PHYSICAL_PORT) 1100 phba->link_state = LPFC_HBA_READY; 1101 1102 spin_lock_irq(&phba->hbalock); 1103 psli->sli_flag |= LPFC_PROCESS_LA; 1104 control = readl(phba->HCregaddr); 1105 control |= HC_LAINT_ENA; 1106 writel(control, phba->HCregaddr); 1107 readl(phba->HCregaddr); /* flush */ 1108 spin_unlock_irq(&phba->hbalock); 1109 mempool_free(pmb, phba->mbox_mem_pool); 1110 return; 1111 1112 out: 1113 /* Device Discovery completes */ 1114 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1115 "0225 Device Discovery completes\n"); 1116 mempool_free(pmb, phba->mbox_mem_pool); 1117 1118 spin_lock_irq(shost->host_lock); 1119 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1120 spin_unlock_irq(shost->host_lock); 1121 1122 lpfc_can_disctmo(vport); 1123 1124 /* turn on Link Attention interrupts */ 1125 1126 spin_lock_irq(&phba->hbalock); 1127 psli->sli_flag |= LPFC_PROCESS_LA; 1128 control = readl(phba->HCregaddr); 1129 control |= HC_LAINT_ENA; 1130 writel(control, phba->HCregaddr); 1131 readl(phba->HCregaddr); /* flush */ 1132 spin_unlock_irq(&phba->hbalock); 1133 1134 return; 1135 } 1136 1137 1138 void 1139 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1140 { 1141 struct lpfc_vport *vport = pmb->vport; 1142 1143 if (pmb->u.mb.mbxStatus) 1144 goto out; 1145 1146 mempool_free(pmb, phba->mbox_mem_pool); 1147 1148 /* don't perform discovery for SLI4 loopback diagnostic test */ 1149 if ((phba->sli_rev == LPFC_SLI_REV4) && 1150 !(phba->hba_flag & HBA_FCOE_MODE) && 1151 (phba->link_flag & LS_LOOPBACK_MODE)) 1152 return; 1153 1154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1155 vport->fc_flag & FC_PUBLIC_LOOP && 1156 !(vport->fc_flag & FC_LBIT)) { 1157 /* Need to wait for FAN - use discovery timer 1158 * for timeout. port_state is identically 1159 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1160 */ 1161 lpfc_set_disctmo(vport); 1162 return; 1163 } 1164 1165 /* Start discovery by sending a FLOGI. port_state is identically 1166 * LPFC_FLOGI while waiting for FLOGI cmpl 1167 */ 1168 if (vport->port_state != LPFC_FLOGI) 1169 lpfc_initial_flogi(vport); 1170 else if (vport->fc_flag & FC_PT2PT) 1171 lpfc_disc_start(vport); 1172 1173 return; 1174 1175 out: 1176 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1177 "0306 CONFIG_LINK mbxStatus error x%x " 1178 "HBA state x%x\n", 1179 pmb->u.mb.mbxStatus, vport->port_state); 1180 mempool_free(pmb, phba->mbox_mem_pool); 1181 1182 lpfc_linkdown(phba); 1183 1184 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1185 "0200 CONFIG_LINK bad hba state x%x\n", 1186 vport->port_state); 1187 1188 lpfc_issue_clear_la(phba, vport); 1189 return; 1190 } 1191 1192 /** 1193 * lpfc_sli4_clear_fcf_rr_bmask 1194 * @phba pointer to the struct lpfc_hba for this port. 1195 * This fucnction resets the round robin bit mask and clears the 1196 * fcf priority list. The list deletions are done while holding the 1197 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1198 * from the lpfc_fcf_pri record. 1199 **/ 1200 void 1201 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1202 { 1203 struct lpfc_fcf_pri *fcf_pri; 1204 struct lpfc_fcf_pri *next_fcf_pri; 1205 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1206 spin_lock_irq(&phba->hbalock); 1207 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1208 &phba->fcf.fcf_pri_list, list) { 1209 list_del_init(&fcf_pri->list); 1210 fcf_pri->fcf_rec.flag = 0; 1211 } 1212 spin_unlock_irq(&phba->hbalock); 1213 } 1214 static void 1215 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1216 { 1217 struct lpfc_vport *vport = mboxq->vport; 1218 1219 if (mboxq->u.mb.mbxStatus) { 1220 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1221 "2017 REG_FCFI mbxStatus error x%x " 1222 "HBA state x%x\n", 1223 mboxq->u.mb.mbxStatus, vport->port_state); 1224 goto fail_out; 1225 } 1226 1227 /* Start FCoE discovery by sending a FLOGI. */ 1228 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1229 /* Set the FCFI registered flag */ 1230 spin_lock_irq(&phba->hbalock); 1231 phba->fcf.fcf_flag |= FCF_REGISTERED; 1232 spin_unlock_irq(&phba->hbalock); 1233 1234 /* If there is a pending FCoE event, restart FCF table scan. */ 1235 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1236 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1237 goto fail_out; 1238 1239 /* Mark successful completion of FCF table scan */ 1240 spin_lock_irq(&phba->hbalock); 1241 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1242 phba->hba_flag &= ~FCF_TS_INPROG; 1243 if (vport->port_state != LPFC_FLOGI) { 1244 phba->hba_flag |= FCF_RR_INPROG; 1245 spin_unlock_irq(&phba->hbalock); 1246 lpfc_issue_init_vfi(vport); 1247 goto out; 1248 } 1249 spin_unlock_irq(&phba->hbalock); 1250 goto out; 1251 1252 fail_out: 1253 spin_lock_irq(&phba->hbalock); 1254 phba->hba_flag &= ~FCF_RR_INPROG; 1255 spin_unlock_irq(&phba->hbalock); 1256 out: 1257 mempool_free(mboxq, phba->mbox_mem_pool); 1258 } 1259 1260 /** 1261 * lpfc_fab_name_match - Check if the fcf fabric name match. 1262 * @fab_name: pointer to fabric name. 1263 * @new_fcf_record: pointer to fcf record. 1264 * 1265 * This routine compare the fcf record's fabric name with provided 1266 * fabric name. If the fabric name are identical this function 1267 * returns 1 else return 0. 1268 **/ 1269 static uint32_t 1270 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1271 { 1272 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1273 return 0; 1274 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1275 return 0; 1276 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1277 return 0; 1278 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1279 return 0; 1280 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1281 return 0; 1282 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1283 return 0; 1284 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1285 return 0; 1286 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1287 return 0; 1288 return 1; 1289 } 1290 1291 /** 1292 * lpfc_sw_name_match - Check if the fcf switch name match. 1293 * @fab_name: pointer to fabric name. 1294 * @new_fcf_record: pointer to fcf record. 1295 * 1296 * This routine compare the fcf record's switch name with provided 1297 * switch name. If the switch name are identical this function 1298 * returns 1 else return 0. 1299 **/ 1300 static uint32_t 1301 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1302 { 1303 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1304 return 0; 1305 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1306 return 0; 1307 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1308 return 0; 1309 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1310 return 0; 1311 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1312 return 0; 1313 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1314 return 0; 1315 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1316 return 0; 1317 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1318 return 0; 1319 return 1; 1320 } 1321 1322 /** 1323 * lpfc_mac_addr_match - Check if the fcf mac address match. 1324 * @mac_addr: pointer to mac address. 1325 * @new_fcf_record: pointer to fcf record. 1326 * 1327 * This routine compare the fcf record's mac address with HBA's 1328 * FCF mac address. If the mac addresses are identical this function 1329 * returns 1 else return 0. 1330 **/ 1331 static uint32_t 1332 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1333 { 1334 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1335 return 0; 1336 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1337 return 0; 1338 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1339 return 0; 1340 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1341 return 0; 1342 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1343 return 0; 1344 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1345 return 0; 1346 return 1; 1347 } 1348 1349 static bool 1350 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1351 { 1352 return (curr_vlan_id == new_vlan_id); 1353 } 1354 1355 /** 1356 * lpfc_update_fcf_record - Update driver fcf record 1357 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1358 * @phba: pointer to lpfc hba data structure. 1359 * @fcf_index: Index for the lpfc_fcf_record. 1360 * @new_fcf_record: pointer to hba fcf record. 1361 * 1362 * This routine updates the driver FCF priority record from the new HBA FCF 1363 * record. This routine is called with the host lock held. 1364 **/ 1365 static void 1366 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1367 struct fcf_record *new_fcf_record 1368 ) 1369 { 1370 struct lpfc_fcf_pri *fcf_pri; 1371 1372 lockdep_assert_held(&phba->hbalock); 1373 1374 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1375 fcf_pri->fcf_rec.fcf_index = fcf_index; 1376 /* FCF record priority */ 1377 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1378 1379 } 1380 1381 /** 1382 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1383 * @fcf: pointer to driver fcf record. 1384 * @new_fcf_record: pointer to fcf record. 1385 * 1386 * This routine copies the FCF information from the FCF 1387 * record to lpfc_hba data structure. 1388 **/ 1389 static void 1390 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1391 struct fcf_record *new_fcf_record) 1392 { 1393 /* Fabric name */ 1394 fcf_rec->fabric_name[0] = 1395 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1396 fcf_rec->fabric_name[1] = 1397 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1398 fcf_rec->fabric_name[2] = 1399 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1400 fcf_rec->fabric_name[3] = 1401 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1402 fcf_rec->fabric_name[4] = 1403 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1404 fcf_rec->fabric_name[5] = 1405 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1406 fcf_rec->fabric_name[6] = 1407 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1408 fcf_rec->fabric_name[7] = 1409 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1410 /* Mac address */ 1411 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1412 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1413 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1414 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1415 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1416 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1417 /* FCF record index */ 1418 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1419 /* FCF record priority */ 1420 fcf_rec->priority = new_fcf_record->fip_priority; 1421 /* Switch name */ 1422 fcf_rec->switch_name[0] = 1423 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1424 fcf_rec->switch_name[1] = 1425 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1426 fcf_rec->switch_name[2] = 1427 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1428 fcf_rec->switch_name[3] = 1429 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1430 fcf_rec->switch_name[4] = 1431 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1432 fcf_rec->switch_name[5] = 1433 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1434 fcf_rec->switch_name[6] = 1435 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1436 fcf_rec->switch_name[7] = 1437 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1438 } 1439 1440 /** 1441 * lpfc_update_fcf_record - Update driver fcf record 1442 * @phba: pointer to lpfc hba data structure. 1443 * @fcf_rec: pointer to driver fcf record. 1444 * @new_fcf_record: pointer to hba fcf record. 1445 * @addr_mode: address mode to be set to the driver fcf record. 1446 * @vlan_id: vlan tag to be set to the driver fcf record. 1447 * @flag: flag bits to be set to the driver fcf record. 1448 * 1449 * This routine updates the driver FCF record from the new HBA FCF record 1450 * together with the address mode, vlan_id, and other informations. This 1451 * routine is called with the host lock held. 1452 **/ 1453 static void 1454 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1455 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1456 uint16_t vlan_id, uint32_t flag) 1457 { 1458 lockdep_assert_held(&phba->hbalock); 1459 1460 /* Copy the fields from the HBA's FCF record */ 1461 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1462 /* Update other fields of driver FCF record */ 1463 fcf_rec->addr_mode = addr_mode; 1464 fcf_rec->vlan_id = vlan_id; 1465 fcf_rec->flag |= (flag | RECORD_VALID); 1466 __lpfc_update_fcf_record_pri(phba, 1467 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1468 new_fcf_record); 1469 } 1470 1471 /** 1472 * lpfc_register_fcf - Register the FCF with hba. 1473 * @phba: pointer to lpfc hba data structure. 1474 * 1475 * This routine issues a register fcfi mailbox command to register 1476 * the fcf with HBA. 1477 **/ 1478 static void 1479 lpfc_register_fcf(struct lpfc_hba *phba) 1480 { 1481 LPFC_MBOXQ_t *fcf_mbxq; 1482 int rc; 1483 1484 spin_lock_irq(&phba->hbalock); 1485 /* If the FCF is not available do nothing. */ 1486 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1487 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1488 spin_unlock_irq(&phba->hbalock); 1489 return; 1490 } 1491 1492 /* The FCF is already registered, start discovery */ 1493 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1494 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1495 phba->hba_flag &= ~FCF_TS_INPROG; 1496 if (phba->pport->port_state != LPFC_FLOGI && 1497 phba->pport->fc_flag & FC_FABRIC) { 1498 phba->hba_flag |= FCF_RR_INPROG; 1499 spin_unlock_irq(&phba->hbalock); 1500 lpfc_initial_flogi(phba->pport); 1501 return; 1502 } 1503 spin_unlock_irq(&phba->hbalock); 1504 return; 1505 } 1506 spin_unlock_irq(&phba->hbalock); 1507 1508 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1509 if (!fcf_mbxq) { 1510 spin_lock_irq(&phba->hbalock); 1511 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1512 spin_unlock_irq(&phba->hbalock); 1513 return; 1514 } 1515 1516 lpfc_reg_fcfi(phba, fcf_mbxq); 1517 fcf_mbxq->vport = phba->pport; 1518 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1519 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1520 if (rc == MBX_NOT_FINISHED) { 1521 spin_lock_irq(&phba->hbalock); 1522 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1523 spin_unlock_irq(&phba->hbalock); 1524 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1525 } 1526 1527 return; 1528 } 1529 1530 /** 1531 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1532 * @phba: pointer to lpfc hba data structure. 1533 * @new_fcf_record: pointer to fcf record. 1534 * @boot_flag: Indicates if this record used by boot bios. 1535 * @addr_mode: The address mode to be used by this FCF 1536 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1537 * 1538 * This routine compare the fcf record with connect list obtained from the 1539 * config region to decide if this FCF can be used for SAN discovery. It returns 1540 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1541 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1542 * is used by boot bios and addr_mode will indicate the addressing mode to be 1543 * used for this FCF when the function returns. 1544 * If the FCF record need to be used with a particular vlan id, the vlan is 1545 * set in the vlan_id on return of the function. If not VLAN tagging need to 1546 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1547 **/ 1548 static int 1549 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1550 struct fcf_record *new_fcf_record, 1551 uint32_t *boot_flag, uint32_t *addr_mode, 1552 uint16_t *vlan_id) 1553 { 1554 struct lpfc_fcf_conn_entry *conn_entry; 1555 int i, j, fcf_vlan_id = 0; 1556 1557 /* Find the lowest VLAN id in the FCF record */ 1558 for (i = 0; i < 512; i++) { 1559 if (new_fcf_record->vlan_bitmap[i]) { 1560 fcf_vlan_id = i * 8; 1561 j = 0; 1562 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1563 j++; 1564 fcf_vlan_id++; 1565 } 1566 break; 1567 } 1568 } 1569 1570 /* FCF not valid/available or solicitation in progress */ 1571 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1572 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1573 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1574 return 0; 1575 1576 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1577 *boot_flag = 0; 1578 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1579 new_fcf_record); 1580 if (phba->valid_vlan) 1581 *vlan_id = phba->vlan_id; 1582 else 1583 *vlan_id = LPFC_FCOE_NULL_VID; 1584 return 1; 1585 } 1586 1587 /* 1588 * If there are no FCF connection table entry, driver connect to all 1589 * FCFs. 1590 */ 1591 if (list_empty(&phba->fcf_conn_rec_list)) { 1592 *boot_flag = 0; 1593 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1594 new_fcf_record); 1595 1596 /* 1597 * When there are no FCF connect entries, use driver's default 1598 * addressing mode - FPMA. 1599 */ 1600 if (*addr_mode & LPFC_FCF_FPMA) 1601 *addr_mode = LPFC_FCF_FPMA; 1602 1603 /* If FCF record report a vlan id use that vlan id */ 1604 if (fcf_vlan_id) 1605 *vlan_id = fcf_vlan_id; 1606 else 1607 *vlan_id = LPFC_FCOE_NULL_VID; 1608 return 1; 1609 } 1610 1611 list_for_each_entry(conn_entry, 1612 &phba->fcf_conn_rec_list, list) { 1613 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1614 continue; 1615 1616 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1617 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1618 new_fcf_record)) 1619 continue; 1620 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1621 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1622 new_fcf_record)) 1623 continue; 1624 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1625 /* 1626 * If the vlan bit map does not have the bit set for the 1627 * vlan id to be used, then it is not a match. 1628 */ 1629 if (!(new_fcf_record->vlan_bitmap 1630 [conn_entry->conn_rec.vlan_tag / 8] & 1631 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1632 continue; 1633 } 1634 1635 /* 1636 * If connection record does not support any addressing mode, 1637 * skip the FCF record. 1638 */ 1639 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1640 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1641 continue; 1642 1643 /* 1644 * Check if the connection record specifies a required 1645 * addressing mode. 1646 */ 1647 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1648 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1649 1650 /* 1651 * If SPMA required but FCF not support this continue. 1652 */ 1653 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1654 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1655 new_fcf_record) & LPFC_FCF_SPMA)) 1656 continue; 1657 1658 /* 1659 * If FPMA required but FCF not support this continue. 1660 */ 1661 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1662 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1663 new_fcf_record) & LPFC_FCF_FPMA)) 1664 continue; 1665 } 1666 1667 /* 1668 * This fcf record matches filtering criteria. 1669 */ 1670 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1671 *boot_flag = 1; 1672 else 1673 *boot_flag = 0; 1674 1675 /* 1676 * If user did not specify any addressing mode, or if the 1677 * preferred addressing mode specified by user is not supported 1678 * by FCF, allow fabric to pick the addressing mode. 1679 */ 1680 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1681 new_fcf_record); 1682 /* 1683 * If the user specified a required address mode, assign that 1684 * address mode 1685 */ 1686 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1687 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1688 *addr_mode = (conn_entry->conn_rec.flags & 1689 FCFCNCT_AM_SPMA) ? 1690 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1691 /* 1692 * If the user specified a preferred address mode, use the 1693 * addr mode only if FCF support the addr_mode. 1694 */ 1695 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1696 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1697 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1698 (*addr_mode & LPFC_FCF_SPMA)) 1699 *addr_mode = LPFC_FCF_SPMA; 1700 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1701 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1702 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1703 (*addr_mode & LPFC_FCF_FPMA)) 1704 *addr_mode = LPFC_FCF_FPMA; 1705 1706 /* If matching connect list has a vlan id, use it */ 1707 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1708 *vlan_id = conn_entry->conn_rec.vlan_tag; 1709 /* 1710 * If no vlan id is specified in connect list, use the vlan id 1711 * in the FCF record 1712 */ 1713 else if (fcf_vlan_id) 1714 *vlan_id = fcf_vlan_id; 1715 else 1716 *vlan_id = LPFC_FCOE_NULL_VID; 1717 1718 return 1; 1719 } 1720 1721 return 0; 1722 } 1723 1724 /** 1725 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1726 * @phba: pointer to lpfc hba data structure. 1727 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1728 * 1729 * This function check if there is any fcoe event pending while driver 1730 * scan FCF entries. If there is any pending event, it will restart the 1731 * FCF saning and return 1 else return 0. 1732 */ 1733 int 1734 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1735 { 1736 /* 1737 * If the Link is up and no FCoE events while in the 1738 * FCF discovery, no need to restart FCF discovery. 1739 */ 1740 if ((phba->link_state >= LPFC_LINK_UP) && 1741 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1742 return 0; 1743 1744 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1745 "2768 Pending link or FCF event during current " 1746 "handling of the previous event: link_state:x%x, " 1747 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1748 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1749 phba->fcoe_eventtag); 1750 1751 spin_lock_irq(&phba->hbalock); 1752 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1753 spin_unlock_irq(&phba->hbalock); 1754 1755 if (phba->link_state >= LPFC_LINK_UP) { 1756 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1757 "2780 Restart FCF table scan due to " 1758 "pending FCF event:evt_tag_at_scan:x%x, " 1759 "evt_tag_current:x%x\n", 1760 phba->fcoe_eventtag_at_fcf_scan, 1761 phba->fcoe_eventtag); 1762 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1763 } else { 1764 /* 1765 * Do not continue FCF discovery and clear FCF_TS_INPROG 1766 * flag 1767 */ 1768 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1769 "2833 Stop FCF discovery process due to link " 1770 "state change (x%x)\n", phba->link_state); 1771 spin_lock_irq(&phba->hbalock); 1772 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1773 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1774 spin_unlock_irq(&phba->hbalock); 1775 } 1776 1777 /* Unregister the currently registered FCF if required */ 1778 if (unreg_fcf) { 1779 spin_lock_irq(&phba->hbalock); 1780 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1781 spin_unlock_irq(&phba->hbalock); 1782 lpfc_sli4_unregister_fcf(phba); 1783 } 1784 return 1; 1785 } 1786 1787 /** 1788 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1789 * @phba: pointer to lpfc hba data structure. 1790 * @fcf_cnt: number of eligible fcf record seen so far. 1791 * 1792 * This function makes an running random selection decision on FCF record to 1793 * use through a sequence of @fcf_cnt eligible FCF records with equal 1794 * probability. To perform integer manunipulation of random numbers with 1795 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1796 * from prandom_u32() are taken as the random random number generated. 1797 * 1798 * Returns true when outcome is for the newly read FCF record should be 1799 * chosen; otherwise, return false when outcome is for keeping the previously 1800 * chosen FCF record. 1801 **/ 1802 static bool 1803 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1804 { 1805 uint32_t rand_num; 1806 1807 /* Get 16-bit uniform random number */ 1808 rand_num = 0xFFFF & prandom_u32(); 1809 1810 /* Decision with probability 1/fcf_cnt */ 1811 if ((fcf_cnt * rand_num) < 0xFFFF) 1812 return true; 1813 else 1814 return false; 1815 } 1816 1817 /** 1818 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1819 * @phba: pointer to lpfc hba data structure. 1820 * @mboxq: pointer to mailbox object. 1821 * @next_fcf_index: pointer to holder of next fcf index. 1822 * 1823 * This routine parses the non-embedded fcf mailbox command by performing the 1824 * necessarily error checking, non-embedded read FCF record mailbox command 1825 * SGE parsing, and endianness swapping. 1826 * 1827 * Returns the pointer to the new FCF record in the non-embedded mailbox 1828 * command DMA memory if successfully, other NULL. 1829 */ 1830 static struct fcf_record * 1831 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1832 uint16_t *next_fcf_index) 1833 { 1834 void *virt_addr; 1835 struct lpfc_mbx_sge sge; 1836 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1837 uint32_t shdr_status, shdr_add_status, if_type; 1838 union lpfc_sli4_cfg_shdr *shdr; 1839 struct fcf_record *new_fcf_record; 1840 1841 /* Get the first SGE entry from the non-embedded DMA memory. This 1842 * routine only uses a single SGE. 1843 */ 1844 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1845 if (unlikely(!mboxq->sge_array)) { 1846 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1847 "2524 Failed to get the non-embedded SGE " 1848 "virtual address\n"); 1849 return NULL; 1850 } 1851 virt_addr = mboxq->sge_array->addr[0]; 1852 1853 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1854 lpfc_sli_pcimem_bcopy(shdr, shdr, 1855 sizeof(union lpfc_sli4_cfg_shdr)); 1856 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1857 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1858 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1859 if (shdr_status || shdr_add_status) { 1860 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1861 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1862 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1863 "2726 READ_FCF_RECORD Indicates empty " 1864 "FCF table.\n"); 1865 else 1866 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1867 "2521 READ_FCF_RECORD mailbox failed " 1868 "with status x%x add_status x%x, " 1869 "mbx\n", shdr_status, shdr_add_status); 1870 return NULL; 1871 } 1872 1873 /* Interpreting the returned information of the FCF record */ 1874 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1875 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1876 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1877 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1878 new_fcf_record = (struct fcf_record *)(virt_addr + 1879 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1880 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1881 offsetof(struct fcf_record, vlan_bitmap)); 1882 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1883 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1884 1885 return new_fcf_record; 1886 } 1887 1888 /** 1889 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1890 * @phba: pointer to lpfc hba data structure. 1891 * @fcf_record: pointer to the fcf record. 1892 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1893 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1894 * 1895 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1896 * enabled. 1897 **/ 1898 static void 1899 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1900 struct fcf_record *fcf_record, 1901 uint16_t vlan_id, 1902 uint16_t next_fcf_index) 1903 { 1904 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1905 "2764 READ_FCF_RECORD:\n" 1906 "\tFCF_Index : x%x\n" 1907 "\tFCF_Avail : x%x\n" 1908 "\tFCF_Valid : x%x\n" 1909 "\tFCF_SOL : x%x\n" 1910 "\tFIP_Priority : x%x\n" 1911 "\tMAC_Provider : x%x\n" 1912 "\tLowest VLANID : x%x\n" 1913 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1914 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1915 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1916 "\tNext_FCF_Index: x%x\n", 1917 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1918 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1919 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1920 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1921 fcf_record->fip_priority, 1922 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1923 vlan_id, 1924 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1925 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1926 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1927 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1928 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1929 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1930 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1931 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1932 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1933 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1934 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1935 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1936 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1937 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1938 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1939 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1940 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1941 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1942 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1943 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1944 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1945 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1946 next_fcf_index); 1947 } 1948 1949 /** 1950 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1951 * @phba: pointer to lpfc hba data structure. 1952 * @fcf_rec: pointer to an existing FCF record. 1953 * @new_fcf_record: pointer to a new FCF record. 1954 * @new_vlan_id: vlan id from the new FCF record. 1955 * 1956 * This function performs matching test of a new FCF record against an existing 1957 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1958 * will not be used as part of the FCF record matching criteria. 1959 * 1960 * Returns true if all the fields matching, otherwise returns false. 1961 */ 1962 static bool 1963 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1964 struct lpfc_fcf_rec *fcf_rec, 1965 struct fcf_record *new_fcf_record, 1966 uint16_t new_vlan_id) 1967 { 1968 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1969 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1970 return false; 1971 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1972 return false; 1973 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1974 return false; 1975 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1976 return false; 1977 if (fcf_rec->priority != new_fcf_record->fip_priority) 1978 return false; 1979 return true; 1980 } 1981 1982 /** 1983 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1984 * @vport: Pointer to vport object. 1985 * @fcf_index: index to next fcf. 1986 * 1987 * This function processing the roundrobin fcf failover to next fcf index. 1988 * When this function is invoked, there will be a current fcf registered 1989 * for flogi. 1990 * Return: 0 for continue retrying flogi on currently registered fcf; 1991 * 1 for stop flogi on currently registered fcf; 1992 */ 1993 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1994 { 1995 struct lpfc_hba *phba = vport->phba; 1996 int rc; 1997 1998 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1999 spin_lock_irq(&phba->hbalock); 2000 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2001 spin_unlock_irq(&phba->hbalock); 2002 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2003 "2872 Devloss tmo with no eligible " 2004 "FCF, unregister in-use FCF (x%x) " 2005 "and rescan FCF table\n", 2006 phba->fcf.current_rec.fcf_indx); 2007 lpfc_unregister_fcf_rescan(phba); 2008 goto stop_flogi_current_fcf; 2009 } 2010 /* Mark the end to FLOGI roundrobin failover */ 2011 phba->hba_flag &= ~FCF_RR_INPROG; 2012 /* Allow action to new fcf asynchronous event */ 2013 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2014 spin_unlock_irq(&phba->hbalock); 2015 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2016 "2865 No FCF available, stop roundrobin FCF " 2017 "failover and change port state:x%x/x%x\n", 2018 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2019 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2020 2021 if (!phba->fcf.fcf_redisc_attempted) { 2022 lpfc_unregister_fcf(phba); 2023 2024 rc = lpfc_sli4_redisc_fcf_table(phba); 2025 if (!rc) { 2026 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2027 "3195 Rediscover FCF table\n"); 2028 phba->fcf.fcf_redisc_attempted = 1; 2029 lpfc_sli4_clear_fcf_rr_bmask(phba); 2030 } else { 2031 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2032 "3196 Rediscover FCF table " 2033 "failed. Status:x%x\n", rc); 2034 } 2035 } else { 2036 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2037 "3197 Already rediscover FCF table " 2038 "attempted. No more retry\n"); 2039 } 2040 goto stop_flogi_current_fcf; 2041 } else { 2042 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2043 "2794 Try FLOGI roundrobin FCF failover to " 2044 "(x%x)\n", fcf_index); 2045 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2046 if (rc) 2047 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2048 "2761 FLOGI roundrobin FCF failover " 2049 "failed (rc:x%x) to read FCF (x%x)\n", 2050 rc, phba->fcf.current_rec.fcf_indx); 2051 else 2052 goto stop_flogi_current_fcf; 2053 } 2054 return 0; 2055 2056 stop_flogi_current_fcf: 2057 lpfc_can_disctmo(vport); 2058 return 1; 2059 } 2060 2061 /** 2062 * lpfc_sli4_fcf_pri_list_del 2063 * @phba: pointer to lpfc hba data structure. 2064 * @fcf_index the index of the fcf record to delete 2065 * This routine checks the on list flag of the fcf_index to be deleted. 2066 * If it is one the list then it is removed from the list, and the flag 2067 * is cleared. This routine grab the hbalock before removing the fcf 2068 * record from the list. 2069 **/ 2070 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2071 uint16_t fcf_index) 2072 { 2073 struct lpfc_fcf_pri *new_fcf_pri; 2074 2075 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2076 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2077 "3058 deleting idx x%x pri x%x flg x%x\n", 2078 fcf_index, new_fcf_pri->fcf_rec.priority, 2079 new_fcf_pri->fcf_rec.flag); 2080 spin_lock_irq(&phba->hbalock); 2081 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2082 if (phba->fcf.current_rec.priority == 2083 new_fcf_pri->fcf_rec.priority) 2084 phba->fcf.eligible_fcf_cnt--; 2085 list_del_init(&new_fcf_pri->list); 2086 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2087 } 2088 spin_unlock_irq(&phba->hbalock); 2089 } 2090 2091 /** 2092 * lpfc_sli4_set_fcf_flogi_fail 2093 * @phba: pointer to lpfc hba data structure. 2094 * @fcf_index the index of the fcf record to update 2095 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2096 * flag so the the round robin slection for the particular priority level 2097 * will try a different fcf record that does not have this bit set. 2098 * If the fcf record is re-read for any reason this flag is cleared brfore 2099 * adding it to the priority list. 2100 **/ 2101 void 2102 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2103 { 2104 struct lpfc_fcf_pri *new_fcf_pri; 2105 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2106 spin_lock_irq(&phba->hbalock); 2107 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2108 spin_unlock_irq(&phba->hbalock); 2109 } 2110 2111 /** 2112 * lpfc_sli4_fcf_pri_list_add 2113 * @phba: pointer to lpfc hba data structure. 2114 * @fcf_index the index of the fcf record to add 2115 * This routine checks the priority of the fcf_index to be added. 2116 * If it is a lower priority than the current head of the fcf_pri list 2117 * then it is added to the list in the right order. 2118 * If it is the same priority as the current head of the list then it 2119 * is added to the head of the list and its bit in the rr_bmask is set. 2120 * If the fcf_index to be added is of a higher priority than the current 2121 * head of the list then the rr_bmask is cleared, its bit is set in the 2122 * rr_bmask and it is added to the head of the list. 2123 * returns: 2124 * 0=success 1=failure 2125 **/ 2126 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2127 uint16_t fcf_index, 2128 struct fcf_record *new_fcf_record) 2129 { 2130 uint16_t current_fcf_pri; 2131 uint16_t last_index; 2132 struct lpfc_fcf_pri *fcf_pri; 2133 struct lpfc_fcf_pri *next_fcf_pri; 2134 struct lpfc_fcf_pri *new_fcf_pri; 2135 int ret; 2136 2137 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2138 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2139 "3059 adding idx x%x pri x%x flg x%x\n", 2140 fcf_index, new_fcf_record->fip_priority, 2141 new_fcf_pri->fcf_rec.flag); 2142 spin_lock_irq(&phba->hbalock); 2143 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2144 list_del_init(&new_fcf_pri->list); 2145 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2146 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2147 if (list_empty(&phba->fcf.fcf_pri_list)) { 2148 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2149 ret = lpfc_sli4_fcf_rr_index_set(phba, 2150 new_fcf_pri->fcf_rec.fcf_index); 2151 goto out; 2152 } 2153 2154 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2155 LPFC_SLI4_FCF_TBL_INDX_MAX); 2156 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2157 ret = 0; /* Empty rr list */ 2158 goto out; 2159 } 2160 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2161 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2162 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2163 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2164 memset(phba->fcf.fcf_rr_bmask, 0, 2165 sizeof(*phba->fcf.fcf_rr_bmask)); 2166 /* fcfs_at_this_priority_level = 1; */ 2167 phba->fcf.eligible_fcf_cnt = 1; 2168 } else 2169 /* fcfs_at_this_priority_level++; */ 2170 phba->fcf.eligible_fcf_cnt++; 2171 ret = lpfc_sli4_fcf_rr_index_set(phba, 2172 new_fcf_pri->fcf_rec.fcf_index); 2173 goto out; 2174 } 2175 2176 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2177 &phba->fcf.fcf_pri_list, list) { 2178 if (new_fcf_pri->fcf_rec.priority <= 2179 fcf_pri->fcf_rec.priority) { 2180 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2181 list_add(&new_fcf_pri->list, 2182 &phba->fcf.fcf_pri_list); 2183 else 2184 list_add(&new_fcf_pri->list, 2185 &((struct lpfc_fcf_pri *) 2186 fcf_pri->list.prev)->list); 2187 ret = 0; 2188 goto out; 2189 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2190 || new_fcf_pri->fcf_rec.priority < 2191 next_fcf_pri->fcf_rec.priority) { 2192 list_add(&new_fcf_pri->list, &fcf_pri->list); 2193 ret = 0; 2194 goto out; 2195 } 2196 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2197 continue; 2198 2199 } 2200 ret = 1; 2201 out: 2202 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2203 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2204 spin_unlock_irq(&phba->hbalock); 2205 return ret; 2206 } 2207 2208 /** 2209 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2210 * @phba: pointer to lpfc hba data structure. 2211 * @mboxq: pointer to mailbox object. 2212 * 2213 * This function iterates through all the fcf records available in 2214 * HBA and chooses the optimal FCF record for discovery. After finding 2215 * the FCF for discovery it registers the FCF record and kicks start 2216 * discovery. 2217 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2218 * use an FCF record which matches fabric name and mac address of the 2219 * currently used FCF record. 2220 * If the driver supports only one FCF, it will try to use the FCF record 2221 * used by BOOT_BIOS. 2222 */ 2223 void 2224 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2225 { 2226 struct fcf_record *new_fcf_record; 2227 uint32_t boot_flag, addr_mode; 2228 uint16_t fcf_index, next_fcf_index; 2229 struct lpfc_fcf_rec *fcf_rec = NULL; 2230 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2231 bool select_new_fcf; 2232 int rc; 2233 2234 /* If there is pending FCoE event restart FCF table scan */ 2235 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2236 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2237 return; 2238 } 2239 2240 /* Parse the FCF record from the non-embedded mailbox command */ 2241 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2242 &next_fcf_index); 2243 if (!new_fcf_record) { 2244 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2245 "2765 Mailbox command READ_FCF_RECORD " 2246 "failed to retrieve a FCF record.\n"); 2247 /* Let next new FCF event trigger fast failover */ 2248 spin_lock_irq(&phba->hbalock); 2249 phba->hba_flag &= ~FCF_TS_INPROG; 2250 spin_unlock_irq(&phba->hbalock); 2251 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2252 return; 2253 } 2254 2255 /* Check the FCF record against the connection list */ 2256 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2257 &addr_mode, &vlan_id); 2258 2259 /* Log the FCF record information if turned on */ 2260 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2261 next_fcf_index); 2262 2263 /* 2264 * If the fcf record does not match with connect list entries 2265 * read the next entry; otherwise, this is an eligible FCF 2266 * record for roundrobin FCF failover. 2267 */ 2268 if (!rc) { 2269 lpfc_sli4_fcf_pri_list_del(phba, 2270 bf_get(lpfc_fcf_record_fcf_index, 2271 new_fcf_record)); 2272 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2273 "2781 FCF (x%x) failed connection " 2274 "list check: (x%x/x%x/%x)\n", 2275 bf_get(lpfc_fcf_record_fcf_index, 2276 new_fcf_record), 2277 bf_get(lpfc_fcf_record_fcf_avail, 2278 new_fcf_record), 2279 bf_get(lpfc_fcf_record_fcf_valid, 2280 new_fcf_record), 2281 bf_get(lpfc_fcf_record_fcf_sol, 2282 new_fcf_record)); 2283 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2284 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2285 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2286 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2287 phba->fcf.current_rec.fcf_indx) { 2288 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2289 "2862 FCF (x%x) matches property " 2290 "of in-use FCF (x%x)\n", 2291 bf_get(lpfc_fcf_record_fcf_index, 2292 new_fcf_record), 2293 phba->fcf.current_rec.fcf_indx); 2294 goto read_next_fcf; 2295 } 2296 /* 2297 * In case the current in-use FCF record becomes 2298 * invalid/unavailable during FCF discovery that 2299 * was not triggered by fast FCF failover process, 2300 * treat it as fast FCF failover. 2301 */ 2302 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2303 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2304 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2305 "2835 Invalid in-use FCF " 2306 "(x%x), enter FCF failover " 2307 "table scan.\n", 2308 phba->fcf.current_rec.fcf_indx); 2309 spin_lock_irq(&phba->hbalock); 2310 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2311 spin_unlock_irq(&phba->hbalock); 2312 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2313 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2314 LPFC_FCOE_FCF_GET_FIRST); 2315 return; 2316 } 2317 } 2318 goto read_next_fcf; 2319 } else { 2320 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2321 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2322 new_fcf_record); 2323 if (rc) 2324 goto read_next_fcf; 2325 } 2326 2327 /* 2328 * If this is not the first FCF discovery of the HBA, use last 2329 * FCF record for the discovery. The condition that a rescan 2330 * matches the in-use FCF record: fabric name, switch name, mac 2331 * address, and vlan_id. 2332 */ 2333 spin_lock_irq(&phba->hbalock); 2334 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2335 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2336 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2337 new_fcf_record, vlan_id)) { 2338 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2339 phba->fcf.current_rec.fcf_indx) { 2340 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2341 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2342 /* Stop FCF redisc wait timer */ 2343 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2344 phba); 2345 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2346 /* Fast failover, mark completed */ 2347 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2348 spin_unlock_irq(&phba->hbalock); 2349 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2350 "2836 New FCF matches in-use " 2351 "FCF (x%x), port_state:x%x, " 2352 "fc_flag:x%x\n", 2353 phba->fcf.current_rec.fcf_indx, 2354 phba->pport->port_state, 2355 phba->pport->fc_flag); 2356 goto out; 2357 } else 2358 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2359 "2863 New FCF (x%x) matches " 2360 "property of in-use FCF (x%x)\n", 2361 bf_get(lpfc_fcf_record_fcf_index, 2362 new_fcf_record), 2363 phba->fcf.current_rec.fcf_indx); 2364 } 2365 /* 2366 * Read next FCF record from HBA searching for the matching 2367 * with in-use record only if not during the fast failover 2368 * period. In case of fast failover period, it shall try to 2369 * determine whether the FCF record just read should be the 2370 * next candidate. 2371 */ 2372 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2373 spin_unlock_irq(&phba->hbalock); 2374 goto read_next_fcf; 2375 } 2376 } 2377 /* 2378 * Update on failover FCF record only if it's in FCF fast-failover 2379 * period; otherwise, update on current FCF record. 2380 */ 2381 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2382 fcf_rec = &phba->fcf.failover_rec; 2383 else 2384 fcf_rec = &phba->fcf.current_rec; 2385 2386 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2387 /* 2388 * If the driver FCF record does not have boot flag 2389 * set and new hba fcf record has boot flag set, use 2390 * the new hba fcf record. 2391 */ 2392 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2393 /* Choose this FCF record */ 2394 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2395 "2837 Update current FCF record " 2396 "(x%x) with new FCF record (x%x)\n", 2397 fcf_rec->fcf_indx, 2398 bf_get(lpfc_fcf_record_fcf_index, 2399 new_fcf_record)); 2400 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2401 addr_mode, vlan_id, BOOT_ENABLE); 2402 spin_unlock_irq(&phba->hbalock); 2403 goto read_next_fcf; 2404 } 2405 /* 2406 * If the driver FCF record has boot flag set and the 2407 * new hba FCF record does not have boot flag, read 2408 * the next FCF record. 2409 */ 2410 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2411 spin_unlock_irq(&phba->hbalock); 2412 goto read_next_fcf; 2413 } 2414 /* 2415 * If the new hba FCF record has lower priority value 2416 * than the driver FCF record, use the new record. 2417 */ 2418 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2419 /* Choose the new FCF record with lower priority */ 2420 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2421 "2838 Update current FCF record " 2422 "(x%x) with new FCF record (x%x)\n", 2423 fcf_rec->fcf_indx, 2424 bf_get(lpfc_fcf_record_fcf_index, 2425 new_fcf_record)); 2426 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2427 addr_mode, vlan_id, 0); 2428 /* Reset running random FCF selection count */ 2429 phba->fcf.eligible_fcf_cnt = 1; 2430 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2431 /* Update running random FCF selection count */ 2432 phba->fcf.eligible_fcf_cnt++; 2433 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2434 phba->fcf.eligible_fcf_cnt); 2435 if (select_new_fcf) { 2436 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2437 "2839 Update current FCF record " 2438 "(x%x) with new FCF record (x%x)\n", 2439 fcf_rec->fcf_indx, 2440 bf_get(lpfc_fcf_record_fcf_index, 2441 new_fcf_record)); 2442 /* Choose the new FCF by random selection */ 2443 __lpfc_update_fcf_record(phba, fcf_rec, 2444 new_fcf_record, 2445 addr_mode, vlan_id, 0); 2446 } 2447 } 2448 spin_unlock_irq(&phba->hbalock); 2449 goto read_next_fcf; 2450 } 2451 /* 2452 * This is the first suitable FCF record, choose this record for 2453 * initial best-fit FCF. 2454 */ 2455 if (fcf_rec) { 2456 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2457 "2840 Update initial FCF candidate " 2458 "with FCF (x%x)\n", 2459 bf_get(lpfc_fcf_record_fcf_index, 2460 new_fcf_record)); 2461 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2462 addr_mode, vlan_id, (boot_flag ? 2463 BOOT_ENABLE : 0)); 2464 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2465 /* Setup initial running random FCF selection count */ 2466 phba->fcf.eligible_fcf_cnt = 1; 2467 } 2468 spin_unlock_irq(&phba->hbalock); 2469 goto read_next_fcf; 2470 2471 read_next_fcf: 2472 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2473 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2474 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2475 /* 2476 * Case of FCF fast failover scan 2477 */ 2478 2479 /* 2480 * It has not found any suitable FCF record, cancel 2481 * FCF scan inprogress, and do nothing 2482 */ 2483 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2484 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2485 "2782 No suitable FCF found: " 2486 "(x%x/x%x)\n", 2487 phba->fcoe_eventtag_at_fcf_scan, 2488 bf_get(lpfc_fcf_record_fcf_index, 2489 new_fcf_record)); 2490 spin_lock_irq(&phba->hbalock); 2491 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2492 phba->hba_flag &= ~FCF_TS_INPROG; 2493 spin_unlock_irq(&phba->hbalock); 2494 /* Unregister in-use FCF and rescan */ 2495 lpfc_printf_log(phba, KERN_INFO, 2496 LOG_FIP, 2497 "2864 On devloss tmo " 2498 "unreg in-use FCF and " 2499 "rescan FCF table\n"); 2500 lpfc_unregister_fcf_rescan(phba); 2501 return; 2502 } 2503 /* 2504 * Let next new FCF event trigger fast failover 2505 */ 2506 phba->hba_flag &= ~FCF_TS_INPROG; 2507 spin_unlock_irq(&phba->hbalock); 2508 return; 2509 } 2510 /* 2511 * It has found a suitable FCF record that is not 2512 * the same as in-use FCF record, unregister the 2513 * in-use FCF record, replace the in-use FCF record 2514 * with the new FCF record, mark FCF fast failover 2515 * completed, and then start register the new FCF 2516 * record. 2517 */ 2518 2519 /* Unregister the current in-use FCF record */ 2520 lpfc_unregister_fcf(phba); 2521 2522 /* Replace in-use record with the new record */ 2523 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2524 "2842 Replace in-use FCF (x%x) " 2525 "with failover FCF (x%x)\n", 2526 phba->fcf.current_rec.fcf_indx, 2527 phba->fcf.failover_rec.fcf_indx); 2528 memcpy(&phba->fcf.current_rec, 2529 &phba->fcf.failover_rec, 2530 sizeof(struct lpfc_fcf_rec)); 2531 /* 2532 * Mark the fast FCF failover rediscovery completed 2533 * and the start of the first round of the roundrobin 2534 * FCF failover. 2535 */ 2536 spin_lock_irq(&phba->hbalock); 2537 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2538 spin_unlock_irq(&phba->hbalock); 2539 /* Register to the new FCF record */ 2540 lpfc_register_fcf(phba); 2541 } else { 2542 /* 2543 * In case of transaction period to fast FCF failover, 2544 * do nothing when search to the end of the FCF table. 2545 */ 2546 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2547 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2548 return; 2549 2550 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2551 phba->fcf.fcf_flag & FCF_IN_USE) { 2552 /* 2553 * In case the current in-use FCF record no 2554 * longer existed during FCF discovery that 2555 * was not triggered by fast FCF failover 2556 * process, treat it as fast FCF failover. 2557 */ 2558 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2559 "2841 In-use FCF record (x%x) " 2560 "not reported, entering fast " 2561 "FCF failover mode scanning.\n", 2562 phba->fcf.current_rec.fcf_indx); 2563 spin_lock_irq(&phba->hbalock); 2564 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2565 spin_unlock_irq(&phba->hbalock); 2566 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2567 LPFC_FCOE_FCF_GET_FIRST); 2568 return; 2569 } 2570 /* Register to the new FCF record */ 2571 lpfc_register_fcf(phba); 2572 } 2573 } else 2574 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2575 return; 2576 2577 out: 2578 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2579 lpfc_register_fcf(phba); 2580 2581 return; 2582 } 2583 2584 /** 2585 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2586 * @phba: pointer to lpfc hba data structure. 2587 * @mboxq: pointer to mailbox object. 2588 * 2589 * This is the callback function for FLOGI failure roundrobin FCF failover 2590 * read FCF record mailbox command from the eligible FCF record bmask for 2591 * performing the failover. If the FCF read back is not valid/available, it 2592 * fails through to retrying FLOGI to the currently registered FCF again. 2593 * Otherwise, if the FCF read back is valid and available, it will set the 2594 * newly read FCF record to the failover FCF record, unregister currently 2595 * registered FCF record, copy the failover FCF record to the current 2596 * FCF record, and then register the current FCF record before proceeding 2597 * to trying FLOGI on the new failover FCF. 2598 */ 2599 void 2600 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2601 { 2602 struct fcf_record *new_fcf_record; 2603 uint32_t boot_flag, addr_mode; 2604 uint16_t next_fcf_index, fcf_index; 2605 uint16_t current_fcf_index; 2606 uint16_t vlan_id; 2607 int rc; 2608 2609 /* If link state is not up, stop the roundrobin failover process */ 2610 if (phba->link_state < LPFC_LINK_UP) { 2611 spin_lock_irq(&phba->hbalock); 2612 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2613 phba->hba_flag &= ~FCF_RR_INPROG; 2614 spin_unlock_irq(&phba->hbalock); 2615 goto out; 2616 } 2617 2618 /* Parse the FCF record from the non-embedded mailbox command */ 2619 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2620 &next_fcf_index); 2621 if (!new_fcf_record) { 2622 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2623 "2766 Mailbox command READ_FCF_RECORD " 2624 "failed to retrieve a FCF record. " 2625 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2626 phba->fcf.fcf_flag); 2627 lpfc_unregister_fcf_rescan(phba); 2628 goto out; 2629 } 2630 2631 /* Get the needed parameters from FCF record */ 2632 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2633 &addr_mode, &vlan_id); 2634 2635 /* Log the FCF record information if turned on */ 2636 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2637 next_fcf_index); 2638 2639 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2640 if (!rc) { 2641 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2642 "2848 Remove ineligible FCF (x%x) from " 2643 "from roundrobin bmask\n", fcf_index); 2644 /* Clear roundrobin bmask bit for ineligible FCF */ 2645 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2646 /* Perform next round of roundrobin FCF failover */ 2647 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2648 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2649 if (rc) 2650 goto out; 2651 goto error_out; 2652 } 2653 2654 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2655 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2656 "2760 Perform FLOGI roundrobin FCF failover: " 2657 "FCF (x%x) back to FCF (x%x)\n", 2658 phba->fcf.current_rec.fcf_indx, fcf_index); 2659 /* Wait 500 ms before retrying FLOGI to current FCF */ 2660 msleep(500); 2661 lpfc_issue_init_vfi(phba->pport); 2662 goto out; 2663 } 2664 2665 /* Upload new FCF record to the failover FCF record */ 2666 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2667 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2668 phba->fcf.failover_rec.fcf_indx, fcf_index); 2669 spin_lock_irq(&phba->hbalock); 2670 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2671 new_fcf_record, addr_mode, vlan_id, 2672 (boot_flag ? BOOT_ENABLE : 0)); 2673 spin_unlock_irq(&phba->hbalock); 2674 2675 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2676 2677 /* Unregister the current in-use FCF record */ 2678 lpfc_unregister_fcf(phba); 2679 2680 /* Replace in-use record with the new record */ 2681 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2682 sizeof(struct lpfc_fcf_rec)); 2683 2684 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2685 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2686 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2687 2688 error_out: 2689 lpfc_register_fcf(phba); 2690 out: 2691 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2692 } 2693 2694 /** 2695 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2696 * @phba: pointer to lpfc hba data structure. 2697 * @mboxq: pointer to mailbox object. 2698 * 2699 * This is the callback function of read FCF record mailbox command for 2700 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2701 * failover when a new FCF event happened. If the FCF read back is 2702 * valid/available and it passes the connection list check, it updates 2703 * the bmask for the eligible FCF record for roundrobin failover. 2704 */ 2705 void 2706 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2707 { 2708 struct fcf_record *new_fcf_record; 2709 uint32_t boot_flag, addr_mode; 2710 uint16_t fcf_index, next_fcf_index; 2711 uint16_t vlan_id; 2712 int rc; 2713 2714 /* If link state is not up, no need to proceed */ 2715 if (phba->link_state < LPFC_LINK_UP) 2716 goto out; 2717 2718 /* If FCF discovery period is over, no need to proceed */ 2719 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2720 goto out; 2721 2722 /* Parse the FCF record from the non-embedded mailbox command */ 2723 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2724 &next_fcf_index); 2725 if (!new_fcf_record) { 2726 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2727 "2767 Mailbox command READ_FCF_RECORD " 2728 "failed to retrieve a FCF record.\n"); 2729 goto out; 2730 } 2731 2732 /* Check the connection list for eligibility */ 2733 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2734 &addr_mode, &vlan_id); 2735 2736 /* Log the FCF record information if turned on */ 2737 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2738 next_fcf_index); 2739 2740 if (!rc) 2741 goto out; 2742 2743 /* Update the eligible FCF record index bmask */ 2744 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2745 2746 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2747 2748 out: 2749 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2750 } 2751 2752 /** 2753 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2754 * @phba: pointer to lpfc hba data structure. 2755 * @mboxq: pointer to mailbox data structure. 2756 * 2757 * This function handles completion of init vfi mailbox command. 2758 */ 2759 static void 2760 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2761 { 2762 struct lpfc_vport *vport = mboxq->vport; 2763 2764 /* 2765 * VFI not supported on interface type 0, just do the flogi 2766 * Also continue if the VFI is in use - just use the same one. 2767 */ 2768 if (mboxq->u.mb.mbxStatus && 2769 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2770 LPFC_SLI_INTF_IF_TYPE_0) && 2771 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2772 lpfc_printf_vlog(vport, KERN_ERR, 2773 LOG_MBOX, 2774 "2891 Init VFI mailbox failed 0x%x\n", 2775 mboxq->u.mb.mbxStatus); 2776 mempool_free(mboxq, phba->mbox_mem_pool); 2777 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2778 return; 2779 } 2780 2781 lpfc_initial_flogi(vport); 2782 mempool_free(mboxq, phba->mbox_mem_pool); 2783 return; 2784 } 2785 2786 /** 2787 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2788 * @vport: pointer to lpfc_vport data structure. 2789 * 2790 * This function issue a init_vfi mailbox command to initialize the VFI and 2791 * VPI for the physical port. 2792 */ 2793 void 2794 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2795 { 2796 LPFC_MBOXQ_t *mboxq; 2797 int rc; 2798 struct lpfc_hba *phba = vport->phba; 2799 2800 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2801 if (!mboxq) { 2802 lpfc_printf_vlog(vport, KERN_ERR, 2803 LOG_MBOX, "2892 Failed to allocate " 2804 "init_vfi mailbox\n"); 2805 return; 2806 } 2807 lpfc_init_vfi(mboxq, vport); 2808 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2809 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2810 if (rc == MBX_NOT_FINISHED) { 2811 lpfc_printf_vlog(vport, KERN_ERR, 2812 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2813 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2814 } 2815 } 2816 2817 /** 2818 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2819 * @phba: pointer to lpfc hba data structure. 2820 * @mboxq: pointer to mailbox data structure. 2821 * 2822 * This function handles completion of init vpi mailbox command. 2823 */ 2824 void 2825 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2826 { 2827 struct lpfc_vport *vport = mboxq->vport; 2828 struct lpfc_nodelist *ndlp; 2829 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2830 2831 if (mboxq->u.mb.mbxStatus) { 2832 lpfc_printf_vlog(vport, KERN_ERR, 2833 LOG_MBOX, 2834 "2609 Init VPI mailbox failed 0x%x\n", 2835 mboxq->u.mb.mbxStatus); 2836 mempool_free(mboxq, phba->mbox_mem_pool); 2837 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2838 return; 2839 } 2840 spin_lock_irq(shost->host_lock); 2841 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2842 spin_unlock_irq(shost->host_lock); 2843 2844 /* If this port is physical port or FDISC is done, do reg_vpi */ 2845 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2846 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2847 if (!ndlp) 2848 lpfc_printf_vlog(vport, KERN_ERR, 2849 LOG_DISCOVERY, 2850 "2731 Cannot find fabric " 2851 "controller node\n"); 2852 else 2853 lpfc_register_new_vport(phba, vport, ndlp); 2854 mempool_free(mboxq, phba->mbox_mem_pool); 2855 return; 2856 } 2857 2858 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2859 lpfc_initial_fdisc(vport); 2860 else { 2861 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2862 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2863 "2606 No NPIV Fabric support\n"); 2864 } 2865 mempool_free(mboxq, phba->mbox_mem_pool); 2866 return; 2867 } 2868 2869 /** 2870 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2871 * @vport: pointer to lpfc_vport data structure. 2872 * 2873 * This function issue a init_vpi mailbox command to initialize 2874 * VPI for the vport. 2875 */ 2876 void 2877 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2878 { 2879 LPFC_MBOXQ_t *mboxq; 2880 int rc, vpi; 2881 2882 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2883 vpi = lpfc_alloc_vpi(vport->phba); 2884 if (!vpi) { 2885 lpfc_printf_vlog(vport, KERN_ERR, 2886 LOG_MBOX, 2887 "3303 Failed to obtain vport vpi\n"); 2888 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2889 return; 2890 } 2891 vport->vpi = vpi; 2892 } 2893 2894 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2895 if (!mboxq) { 2896 lpfc_printf_vlog(vport, KERN_ERR, 2897 LOG_MBOX, "2607 Failed to allocate " 2898 "init_vpi mailbox\n"); 2899 return; 2900 } 2901 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2902 mboxq->vport = vport; 2903 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2904 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2905 if (rc == MBX_NOT_FINISHED) { 2906 lpfc_printf_vlog(vport, KERN_ERR, 2907 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2908 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2909 } 2910 } 2911 2912 /** 2913 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2914 * @phba: pointer to lpfc hba data structure. 2915 * 2916 * This function loops through the list of vports on the @phba and issues an 2917 * FDISC if possible. 2918 */ 2919 void 2920 lpfc_start_fdiscs(struct lpfc_hba *phba) 2921 { 2922 struct lpfc_vport **vports; 2923 int i; 2924 2925 vports = lpfc_create_vport_work_array(phba); 2926 if (vports != NULL) { 2927 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2928 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2929 continue; 2930 /* There are no vpi for this vport */ 2931 if (vports[i]->vpi > phba->max_vpi) { 2932 lpfc_vport_set_state(vports[i], 2933 FC_VPORT_FAILED); 2934 continue; 2935 } 2936 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2937 lpfc_vport_set_state(vports[i], 2938 FC_VPORT_LINKDOWN); 2939 continue; 2940 } 2941 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2942 lpfc_issue_init_vpi(vports[i]); 2943 continue; 2944 } 2945 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2946 lpfc_initial_fdisc(vports[i]); 2947 else { 2948 lpfc_vport_set_state(vports[i], 2949 FC_VPORT_NO_FABRIC_SUPP); 2950 lpfc_printf_vlog(vports[i], KERN_ERR, 2951 LOG_ELS, 2952 "0259 No NPIV " 2953 "Fabric support\n"); 2954 } 2955 } 2956 } 2957 lpfc_destroy_vport_work_array(phba, vports); 2958 } 2959 2960 void 2961 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2962 { 2963 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 2964 struct lpfc_vport *vport = mboxq->vport; 2965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2966 2967 /* 2968 * VFI not supported for interface type 0, so ignore any mailbox 2969 * error (except VFI in use) and continue with the discovery. 2970 */ 2971 if (mboxq->u.mb.mbxStatus && 2972 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2973 LPFC_SLI_INTF_IF_TYPE_0) && 2974 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2975 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2976 "2018 REG_VFI mbxStatus error x%x " 2977 "HBA state x%x\n", 2978 mboxq->u.mb.mbxStatus, vport->port_state); 2979 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2980 /* FLOGI failed, use loop map to make discovery list */ 2981 lpfc_disc_list_loopmap(vport); 2982 /* Start discovery */ 2983 lpfc_disc_start(vport); 2984 goto out_free_mem; 2985 } 2986 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2987 goto out_free_mem; 2988 } 2989 2990 /* If the VFI is already registered, there is nothing else to do 2991 * Unless this was a VFI update and we are in PT2PT mode, then 2992 * we should drop through to set the port state to ready. 2993 */ 2994 if (vport->fc_flag & FC_VFI_REGISTERED) 2995 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2996 vport->fc_flag & FC_PT2PT)) 2997 goto out_free_mem; 2998 2999 /* The VPI is implicitly registered when the VFI is registered */ 3000 spin_lock_irq(shost->host_lock); 3001 vport->vpi_state |= LPFC_VPI_REGISTERED; 3002 vport->fc_flag |= FC_VFI_REGISTERED; 3003 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3004 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3005 spin_unlock_irq(shost->host_lock); 3006 3007 /* In case SLI4 FC loopback test, we are ready */ 3008 if ((phba->sli_rev == LPFC_SLI_REV4) && 3009 (phba->link_flag & LS_LOOPBACK_MODE)) { 3010 phba->link_state = LPFC_HBA_READY; 3011 goto out_free_mem; 3012 } 3013 3014 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3015 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3016 "alpacnt:%d LinkState:%x topology:%x\n", 3017 vport->port_state, vport->fc_flag, vport->fc_myDID, 3018 vport->phba->alpa_map[0], 3019 phba->link_state, phba->fc_topology); 3020 3021 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3022 /* 3023 * For private loop or for NPort pt2pt, 3024 * just start discovery and we are done. 3025 */ 3026 if ((vport->fc_flag & FC_PT2PT) || 3027 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3028 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3029 3030 /* Use loop map to make discovery list */ 3031 lpfc_disc_list_loopmap(vport); 3032 /* Start discovery */ 3033 if (vport->fc_flag & FC_PT2PT) 3034 vport->port_state = LPFC_VPORT_READY; 3035 else 3036 lpfc_disc_start(vport); 3037 } else { 3038 lpfc_start_fdiscs(phba); 3039 lpfc_do_scr_ns_plogi(phba, vport); 3040 } 3041 } 3042 3043 out_free_mem: 3044 mempool_free(mboxq, phba->mbox_mem_pool); 3045 if (dmabuf) { 3046 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3047 kfree(dmabuf); 3048 } 3049 return; 3050 } 3051 3052 static void 3053 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3054 { 3055 MAILBOX_t *mb = &pmb->u.mb; 3056 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3057 struct lpfc_vport *vport = pmb->vport; 3058 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3059 struct serv_parm *sp = &vport->fc_sparam; 3060 uint32_t ed_tov; 3061 3062 /* Check for error */ 3063 if (mb->mbxStatus) { 3064 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3065 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3066 "0319 READ_SPARAM mbxStatus error x%x " 3067 "hba state x%x>\n", 3068 mb->mbxStatus, vport->port_state); 3069 lpfc_linkdown(phba); 3070 goto out; 3071 } 3072 3073 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3074 sizeof (struct serv_parm)); 3075 3076 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3077 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3078 ed_tov = (ed_tov + 999999) / 1000000; 3079 3080 phba->fc_edtov = ed_tov; 3081 phba->fc_ratov = (2 * ed_tov) / 1000; 3082 if (phba->fc_ratov < FF_DEF_RATOV) { 3083 /* RA_TOV should be atleast 10sec for initial flogi */ 3084 phba->fc_ratov = FF_DEF_RATOV; 3085 } 3086 3087 lpfc_update_vport_wwn(vport); 3088 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3089 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3090 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3091 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3092 } 3093 3094 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3095 kfree(mp); 3096 mempool_free(pmb, phba->mbox_mem_pool); 3097 return; 3098 3099 out: 3100 pmb->ctx_buf = NULL; 3101 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3102 kfree(mp); 3103 lpfc_issue_clear_la(phba, vport); 3104 mempool_free(pmb, phba->mbox_mem_pool); 3105 return; 3106 } 3107 3108 static void 3109 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3110 { 3111 struct lpfc_vport *vport = phba->pport; 3112 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3113 struct Scsi_Host *shost; 3114 int i; 3115 struct lpfc_dmabuf *mp; 3116 int rc; 3117 struct fcf_record *fcf_record; 3118 uint32_t fc_flags = 0; 3119 unsigned long iflags; 3120 3121 spin_lock_irqsave(&phba->hbalock, iflags); 3122 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3123 3124 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3125 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3126 case LPFC_LINK_SPEED_1GHZ: 3127 case LPFC_LINK_SPEED_2GHZ: 3128 case LPFC_LINK_SPEED_4GHZ: 3129 case LPFC_LINK_SPEED_8GHZ: 3130 case LPFC_LINK_SPEED_10GHZ: 3131 case LPFC_LINK_SPEED_16GHZ: 3132 case LPFC_LINK_SPEED_32GHZ: 3133 case LPFC_LINK_SPEED_64GHZ: 3134 case LPFC_LINK_SPEED_128GHZ: 3135 break; 3136 default: 3137 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3138 break; 3139 } 3140 } 3141 3142 if (phba->fc_topology && 3143 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3144 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3145 "3314 Toplogy changed was 0x%x is 0x%x\n", 3146 phba->fc_topology, 3147 bf_get(lpfc_mbx_read_top_topology, la)); 3148 phba->fc_topology_changed = 1; 3149 } 3150 3151 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3152 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3153 3154 shost = lpfc_shost_from_vport(vport); 3155 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3156 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3157 3158 /* if npiv is enabled and this adapter supports npiv log 3159 * a message that npiv is not supported in this topology 3160 */ 3161 if (phba->cfg_enable_npiv && phba->max_vpi) 3162 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3163 "1309 Link Up Event npiv not supported in loop " 3164 "topology\n"); 3165 /* Get Loop Map information */ 3166 if (bf_get(lpfc_mbx_read_top_il, la)) 3167 fc_flags |= FC_LBIT; 3168 3169 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3170 i = la->lilpBde64.tus.f.bdeSize; 3171 3172 if (i == 0) { 3173 phba->alpa_map[0] = 0; 3174 } else { 3175 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3176 int numalpa, j, k; 3177 union { 3178 uint8_t pamap[16]; 3179 struct { 3180 uint32_t wd1; 3181 uint32_t wd2; 3182 uint32_t wd3; 3183 uint32_t wd4; 3184 } pa; 3185 } un; 3186 numalpa = phba->alpa_map[0]; 3187 j = 0; 3188 while (j < numalpa) { 3189 memset(un.pamap, 0, 16); 3190 for (k = 1; j < numalpa; k++) { 3191 un.pamap[k - 1] = 3192 phba->alpa_map[j + 1]; 3193 j++; 3194 if (k == 16) 3195 break; 3196 } 3197 /* Link Up Event ALPA map */ 3198 lpfc_printf_log(phba, 3199 KERN_WARNING, 3200 LOG_LINK_EVENT, 3201 "1304 Link Up Event " 3202 "ALPA map Data: x%x " 3203 "x%x x%x x%x\n", 3204 un.pa.wd1, un.pa.wd2, 3205 un.pa.wd3, un.pa.wd4); 3206 } 3207 } 3208 } 3209 } else { 3210 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3211 if (phba->max_vpi && phba->cfg_enable_npiv && 3212 (phba->sli_rev >= LPFC_SLI_REV3)) 3213 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3214 } 3215 vport->fc_myDID = phba->fc_pref_DID; 3216 fc_flags |= FC_LBIT; 3217 } 3218 spin_unlock_irqrestore(&phba->hbalock, iflags); 3219 3220 if (fc_flags) { 3221 spin_lock_irqsave(shost->host_lock, iflags); 3222 vport->fc_flag |= fc_flags; 3223 spin_unlock_irqrestore(shost->host_lock, iflags); 3224 } 3225 3226 lpfc_linkup(phba); 3227 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3228 if (!sparam_mbox) 3229 goto out; 3230 3231 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3232 if (rc) { 3233 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3234 goto out; 3235 } 3236 sparam_mbox->vport = vport; 3237 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3238 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3239 if (rc == MBX_NOT_FINISHED) { 3240 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3241 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3242 kfree(mp); 3243 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3244 goto out; 3245 } 3246 3247 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3248 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3249 if (!cfglink_mbox) 3250 goto out; 3251 vport->port_state = LPFC_LOCAL_CFG_LINK; 3252 lpfc_config_link(phba, cfglink_mbox); 3253 cfglink_mbox->vport = vport; 3254 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3255 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3256 if (rc == MBX_NOT_FINISHED) { 3257 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3258 goto out; 3259 } 3260 } else { 3261 vport->port_state = LPFC_VPORT_UNKNOWN; 3262 /* 3263 * Add the driver's default FCF record at FCF index 0 now. This 3264 * is phase 1 implementation that support FCF index 0 and driver 3265 * defaults. 3266 */ 3267 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3268 fcf_record = kzalloc(sizeof(struct fcf_record), 3269 GFP_KERNEL); 3270 if (unlikely(!fcf_record)) { 3271 lpfc_printf_log(phba, KERN_ERR, 3272 LOG_MBOX | LOG_SLI, 3273 "2554 Could not allocate memory for " 3274 "fcf record\n"); 3275 rc = -ENODEV; 3276 goto out; 3277 } 3278 3279 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3280 LPFC_FCOE_FCF_DEF_INDEX); 3281 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3282 if (unlikely(rc)) { 3283 lpfc_printf_log(phba, KERN_ERR, 3284 LOG_MBOX | LOG_SLI, 3285 "2013 Could not manually add FCF " 3286 "record 0, status %d\n", rc); 3287 rc = -ENODEV; 3288 kfree(fcf_record); 3289 goto out; 3290 } 3291 kfree(fcf_record); 3292 } 3293 /* 3294 * The driver is expected to do FIP/FCF. Call the port 3295 * and get the FCF Table. 3296 */ 3297 spin_lock_irqsave(&phba->hbalock, iflags); 3298 if (phba->hba_flag & FCF_TS_INPROG) { 3299 spin_unlock_irqrestore(&phba->hbalock, iflags); 3300 return; 3301 } 3302 /* This is the initial FCF discovery scan */ 3303 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3304 spin_unlock_irqrestore(&phba->hbalock, iflags); 3305 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3306 "2778 Start FCF table scan at linkup\n"); 3307 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3308 LPFC_FCOE_FCF_GET_FIRST); 3309 if (rc) { 3310 spin_lock_irqsave(&phba->hbalock, iflags); 3311 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3312 spin_unlock_irqrestore(&phba->hbalock, iflags); 3313 goto out; 3314 } 3315 /* Reset FCF roundrobin bmask for new discovery */ 3316 lpfc_sli4_clear_fcf_rr_bmask(phba); 3317 } 3318 3319 /* Prepare for LINK up registrations */ 3320 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3321 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3322 init_utsname()->nodename); 3323 return; 3324 out: 3325 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3326 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3327 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3328 vport->port_state, sparam_mbox, cfglink_mbox); 3329 lpfc_issue_clear_la(phba, vport); 3330 return; 3331 } 3332 3333 static void 3334 lpfc_enable_la(struct lpfc_hba *phba) 3335 { 3336 uint32_t control; 3337 struct lpfc_sli *psli = &phba->sli; 3338 spin_lock_irq(&phba->hbalock); 3339 psli->sli_flag |= LPFC_PROCESS_LA; 3340 if (phba->sli_rev <= LPFC_SLI_REV3) { 3341 control = readl(phba->HCregaddr); 3342 control |= HC_LAINT_ENA; 3343 writel(control, phba->HCregaddr); 3344 readl(phba->HCregaddr); /* flush */ 3345 } 3346 spin_unlock_irq(&phba->hbalock); 3347 } 3348 3349 static void 3350 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3351 { 3352 lpfc_linkdown(phba); 3353 lpfc_enable_la(phba); 3354 lpfc_unregister_unused_fcf(phba); 3355 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3356 } 3357 3358 3359 /* 3360 * This routine handles processing a READ_TOPOLOGY mailbox 3361 * command upon completion. It is setup in the LPFC_MBOXQ 3362 * as the completion routine when the command is 3363 * handed off to the SLI layer. SLI4 only. 3364 */ 3365 void 3366 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3367 { 3368 struct lpfc_vport *vport = pmb->vport; 3369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3370 struct lpfc_mbx_read_top *la; 3371 struct lpfc_sli_ring *pring; 3372 MAILBOX_t *mb = &pmb->u.mb; 3373 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3374 uint8_t attn_type; 3375 unsigned long iflags; 3376 3377 /* Unblock ELS traffic */ 3378 pring = lpfc_phba_elsring(phba); 3379 if (pring) 3380 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3381 3382 /* Check for error */ 3383 if (mb->mbxStatus) { 3384 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3385 "1307 READ_LA mbox error x%x state x%x\n", 3386 mb->mbxStatus, vport->port_state); 3387 lpfc_mbx_issue_link_down(phba); 3388 phba->link_state = LPFC_HBA_ERROR; 3389 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3390 } 3391 3392 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3393 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3394 3395 memcpy(&phba->alpa_map[0], mp->virt, 128); 3396 3397 spin_lock_irqsave(shost->host_lock, iflags); 3398 if (bf_get(lpfc_mbx_read_top_pb, la)) 3399 vport->fc_flag |= FC_BYPASSED_MODE; 3400 else 3401 vport->fc_flag &= ~FC_BYPASSED_MODE; 3402 spin_unlock_irqrestore(shost->host_lock, iflags); 3403 3404 if (phba->fc_eventTag <= la->eventTag) { 3405 phba->fc_stat.LinkMultiEvent++; 3406 if (attn_type == LPFC_ATT_LINK_UP) 3407 if (phba->fc_eventTag != 0) 3408 lpfc_linkdown(phba); 3409 } 3410 3411 phba->fc_eventTag = la->eventTag; 3412 if (phba->sli_rev < LPFC_SLI_REV4) { 3413 spin_lock_irqsave(&phba->hbalock, iflags); 3414 if (bf_get(lpfc_mbx_read_top_mm, la)) 3415 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3416 else 3417 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3418 spin_unlock_irqrestore(&phba->hbalock, iflags); 3419 } 3420 3421 phba->link_events++; 3422 if ((attn_type == LPFC_ATT_LINK_UP) && 3423 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3424 phba->fc_stat.LinkUp++; 3425 if (phba->link_flag & LS_LOOPBACK_MODE) { 3426 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3427 "1306 Link Up Event in loop back mode " 3428 "x%x received Data: x%x x%x x%x x%x\n", 3429 la->eventTag, phba->fc_eventTag, 3430 bf_get(lpfc_mbx_read_top_alpa_granted, 3431 la), 3432 bf_get(lpfc_mbx_read_top_link_spd, la), 3433 phba->alpa_map[0]); 3434 } else { 3435 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3436 "1303 Link Up Event x%x received " 3437 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3438 la->eventTag, phba->fc_eventTag, 3439 bf_get(lpfc_mbx_read_top_alpa_granted, 3440 la), 3441 bf_get(lpfc_mbx_read_top_link_spd, la), 3442 phba->alpa_map[0], 3443 bf_get(lpfc_mbx_read_top_mm, la), 3444 bf_get(lpfc_mbx_read_top_fa, la), 3445 phba->wait_4_mlo_maint_flg); 3446 } 3447 lpfc_mbx_process_link_up(phba, la); 3448 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3449 attn_type == LPFC_ATT_UNEXP_WWPN) { 3450 phba->fc_stat.LinkDown++; 3451 if (phba->link_flag & LS_LOOPBACK_MODE) 3452 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3453 "1308 Link Down Event in loop back mode " 3454 "x%x received " 3455 "Data: x%x x%x x%x\n", 3456 la->eventTag, phba->fc_eventTag, 3457 phba->pport->port_state, vport->fc_flag); 3458 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3459 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3460 "1313 Link Down Unexpected FA WWPN Event x%x " 3461 "received Data: x%x x%x x%x x%x x%x\n", 3462 la->eventTag, phba->fc_eventTag, 3463 phba->pport->port_state, vport->fc_flag, 3464 bf_get(lpfc_mbx_read_top_mm, la), 3465 bf_get(lpfc_mbx_read_top_fa, la)); 3466 else 3467 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3468 "1305 Link Down Event x%x received " 3469 "Data: x%x x%x x%x x%x x%x\n", 3470 la->eventTag, phba->fc_eventTag, 3471 phba->pport->port_state, vport->fc_flag, 3472 bf_get(lpfc_mbx_read_top_mm, la), 3473 bf_get(lpfc_mbx_read_top_fa, la)); 3474 lpfc_mbx_issue_link_down(phba); 3475 } 3476 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3477 attn_type == LPFC_ATT_LINK_UP) { 3478 if (phba->link_state != LPFC_LINK_DOWN) { 3479 phba->fc_stat.LinkDown++; 3480 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3481 "1312 Link Down Event x%x received " 3482 "Data: x%x x%x x%x\n", 3483 la->eventTag, phba->fc_eventTag, 3484 phba->pport->port_state, vport->fc_flag); 3485 lpfc_mbx_issue_link_down(phba); 3486 } else 3487 lpfc_enable_la(phba); 3488 3489 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3490 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3491 "Data: x%x x%x x%x\n", 3492 la->eventTag, phba->fc_eventTag, 3493 phba->pport->port_state, vport->fc_flag); 3494 /* 3495 * The cmnd that triggered this will be waiting for this 3496 * signal. 3497 */ 3498 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3499 if (phba->wait_4_mlo_maint_flg) { 3500 phba->wait_4_mlo_maint_flg = 0; 3501 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3502 } 3503 } 3504 3505 if ((phba->sli_rev < LPFC_SLI_REV4) && 3506 bf_get(lpfc_mbx_read_top_fa, la)) { 3507 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3508 lpfc_issue_clear_la(phba, vport); 3509 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3510 "1311 fa %d\n", 3511 bf_get(lpfc_mbx_read_top_fa, la)); 3512 } 3513 3514 lpfc_mbx_cmpl_read_topology_free_mbuf: 3515 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3516 kfree(mp); 3517 mempool_free(pmb, phba->mbox_mem_pool); 3518 return; 3519 } 3520 3521 /* 3522 * This routine handles processing a REG_LOGIN mailbox 3523 * command upon completion. It is setup in the LPFC_MBOXQ 3524 * as the completion routine when the command is 3525 * handed off to the SLI layer. 3526 */ 3527 void 3528 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3529 { 3530 struct lpfc_vport *vport = pmb->vport; 3531 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3532 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3533 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3534 3535 pmb->ctx_buf = NULL; 3536 pmb->ctx_ndlp = NULL; 3537 3538 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3539 "0002 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 3540 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3541 kref_read(&ndlp->kref), 3542 ndlp->nlp_usg_map, ndlp); 3543 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3544 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3545 3546 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3547 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3548 /* We rcvd a rscn after issuing this 3549 * mbox reg login, we may have cycled 3550 * back through the state and be 3551 * back at reg login state so this 3552 * mbox needs to be ignored becase 3553 * there is another reg login in 3554 * process. 3555 */ 3556 spin_lock_irq(shost->host_lock); 3557 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3558 spin_unlock_irq(shost->host_lock); 3559 3560 /* 3561 * We cannot leave the RPI registered because 3562 * if we go thru discovery again for this ndlp 3563 * a subsequent REG_RPI will fail. 3564 */ 3565 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3566 lpfc_unreg_rpi(vport, ndlp); 3567 } 3568 3569 /* Call state machine */ 3570 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3571 3572 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3573 kfree(mp); 3574 mempool_free(pmb, phba->mbox_mem_pool); 3575 /* decrement the node reference count held for this callback 3576 * function. 3577 */ 3578 lpfc_nlp_put(ndlp); 3579 3580 return; 3581 } 3582 3583 static void 3584 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3585 { 3586 MAILBOX_t *mb = &pmb->u.mb; 3587 struct lpfc_vport *vport = pmb->vport; 3588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3589 3590 switch (mb->mbxStatus) { 3591 case 0x0011: 3592 case 0x0020: 3593 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3594 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3595 mb->mbxStatus); 3596 break; 3597 /* If VPI is busy, reset the HBA */ 3598 case 0x9700: 3599 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3600 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3601 vport->vpi, mb->mbxStatus); 3602 if (!(phba->pport->load_flag & FC_UNLOADING)) 3603 lpfc_workq_post_event(phba, NULL, NULL, 3604 LPFC_EVT_RESET_HBA); 3605 } 3606 spin_lock_irq(shost->host_lock); 3607 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3608 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3609 spin_unlock_irq(shost->host_lock); 3610 vport->unreg_vpi_cmpl = VPORT_OK; 3611 mempool_free(pmb, phba->mbox_mem_pool); 3612 lpfc_cleanup_vports_rrqs(vport, NULL); 3613 /* 3614 * This shost reference might have been taken at the beginning of 3615 * lpfc_vport_delete() 3616 */ 3617 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3618 scsi_host_put(shost); 3619 } 3620 3621 int 3622 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3623 { 3624 struct lpfc_hba *phba = vport->phba; 3625 LPFC_MBOXQ_t *mbox; 3626 int rc; 3627 3628 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3629 if (!mbox) 3630 return 1; 3631 3632 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3633 mbox->vport = vport; 3634 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3635 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3636 if (rc == MBX_NOT_FINISHED) { 3637 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3638 "1800 Could not issue unreg_vpi\n"); 3639 mempool_free(mbox, phba->mbox_mem_pool); 3640 vport->unreg_vpi_cmpl = VPORT_ERROR; 3641 return rc; 3642 } 3643 return 0; 3644 } 3645 3646 static void 3647 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3648 { 3649 struct lpfc_vport *vport = pmb->vport; 3650 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3651 MAILBOX_t *mb = &pmb->u.mb; 3652 3653 switch (mb->mbxStatus) { 3654 case 0x0011: 3655 case 0x9601: 3656 case 0x9602: 3657 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3658 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3659 mb->mbxStatus); 3660 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3661 spin_lock_irq(shost->host_lock); 3662 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3663 spin_unlock_irq(shost->host_lock); 3664 vport->fc_myDID = 0; 3665 3666 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3667 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3668 if (phba->nvmet_support) 3669 lpfc_nvmet_update_targetport(phba); 3670 else 3671 lpfc_nvme_update_localport(vport); 3672 } 3673 goto out; 3674 } 3675 3676 spin_lock_irq(shost->host_lock); 3677 vport->vpi_state |= LPFC_VPI_REGISTERED; 3678 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3679 spin_unlock_irq(shost->host_lock); 3680 vport->num_disc_nodes = 0; 3681 /* go thru NPR list and issue ELS PLOGIs */ 3682 if (vport->fc_npr_cnt) 3683 lpfc_els_disc_plogi(vport); 3684 3685 if (!vport->num_disc_nodes) { 3686 spin_lock_irq(shost->host_lock); 3687 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3688 spin_unlock_irq(shost->host_lock); 3689 lpfc_can_disctmo(vport); 3690 } 3691 vport->port_state = LPFC_VPORT_READY; 3692 3693 out: 3694 mempool_free(pmb, phba->mbox_mem_pool); 3695 return; 3696 } 3697 3698 /** 3699 * lpfc_create_static_vport - Read HBA config region to create static vports. 3700 * @phba: pointer to lpfc hba data structure. 3701 * 3702 * This routine issue a DUMP mailbox command for config region 22 to get 3703 * the list of static vports to be created. The function create vports 3704 * based on the information returned from the HBA. 3705 **/ 3706 void 3707 lpfc_create_static_vport(struct lpfc_hba *phba) 3708 { 3709 LPFC_MBOXQ_t *pmb = NULL; 3710 MAILBOX_t *mb; 3711 struct static_vport_info *vport_info; 3712 int mbx_wait_rc = 0, i; 3713 struct fc_vport_identifiers vport_id; 3714 struct fc_vport *new_fc_vport; 3715 struct Scsi_Host *shost; 3716 struct lpfc_vport *vport; 3717 uint16_t offset = 0; 3718 uint8_t *vport_buff; 3719 struct lpfc_dmabuf *mp; 3720 uint32_t byte_count = 0; 3721 3722 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3723 if (!pmb) { 3724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3725 "0542 lpfc_create_static_vport failed to" 3726 " allocate mailbox memory\n"); 3727 return; 3728 } 3729 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3730 mb = &pmb->u.mb; 3731 3732 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3733 if (!vport_info) { 3734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3735 "0543 lpfc_create_static_vport failed to" 3736 " allocate vport_info\n"); 3737 mempool_free(pmb, phba->mbox_mem_pool); 3738 return; 3739 } 3740 3741 vport_buff = (uint8_t *) vport_info; 3742 do { 3743 /* free dma buffer from previous round */ 3744 if (pmb->ctx_buf) { 3745 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3746 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3747 kfree(mp); 3748 } 3749 if (lpfc_dump_static_vport(phba, pmb, offset)) 3750 goto out; 3751 3752 pmb->vport = phba->pport; 3753 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3754 LPFC_MBOX_TMO); 3755 3756 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3757 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3758 "0544 lpfc_create_static_vport failed to" 3759 " issue dump mailbox command ret 0x%x " 3760 "status 0x%x\n", 3761 mbx_wait_rc, mb->mbxStatus); 3762 goto out; 3763 } 3764 3765 if (phba->sli_rev == LPFC_SLI_REV4) { 3766 byte_count = pmb->u.mqe.un.mb_words[5]; 3767 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3768 if (byte_count > sizeof(struct static_vport_info) - 3769 offset) 3770 byte_count = sizeof(struct static_vport_info) 3771 - offset; 3772 memcpy(vport_buff + offset, mp->virt, byte_count); 3773 offset += byte_count; 3774 } else { 3775 if (mb->un.varDmp.word_cnt > 3776 sizeof(struct static_vport_info) - offset) 3777 mb->un.varDmp.word_cnt = 3778 sizeof(struct static_vport_info) 3779 - offset; 3780 byte_count = mb->un.varDmp.word_cnt; 3781 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3782 vport_buff + offset, 3783 byte_count); 3784 3785 offset += byte_count; 3786 } 3787 3788 } while (byte_count && 3789 offset < sizeof(struct static_vport_info)); 3790 3791 3792 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3793 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3794 != VPORT_INFO_REV)) { 3795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3796 "0545 lpfc_create_static_vport bad" 3797 " information header 0x%x 0x%x\n", 3798 le32_to_cpu(vport_info->signature), 3799 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3800 3801 goto out; 3802 } 3803 3804 shost = lpfc_shost_from_vport(phba->pport); 3805 3806 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3807 memset(&vport_id, 0, sizeof(vport_id)); 3808 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3809 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3810 if (!vport_id.port_name || !vport_id.node_name) 3811 continue; 3812 3813 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3814 vport_id.vport_type = FC_PORTTYPE_NPIV; 3815 vport_id.disable = false; 3816 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3817 3818 if (!new_fc_vport) { 3819 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3820 "0546 lpfc_create_static_vport failed to" 3821 " create vport\n"); 3822 continue; 3823 } 3824 3825 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3826 vport->vport_flag |= STATIC_VPORT; 3827 } 3828 3829 out: 3830 kfree(vport_info); 3831 if (mbx_wait_rc != MBX_TIMEOUT) { 3832 if (pmb->ctx_buf) { 3833 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3834 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3835 kfree(mp); 3836 } 3837 mempool_free(pmb, phba->mbox_mem_pool); 3838 } 3839 3840 return; 3841 } 3842 3843 /* 3844 * This routine handles processing a Fabric 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_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3851 { 3852 struct lpfc_vport *vport = pmb->vport; 3853 MAILBOX_t *mb = &pmb->u.mb; 3854 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3855 struct lpfc_nodelist *ndlp; 3856 struct Scsi_Host *shost; 3857 3858 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3859 pmb->ctx_ndlp = NULL; 3860 pmb->ctx_buf = NULL; 3861 3862 if (mb->mbxStatus) { 3863 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3864 "0258 Register Fabric login error: 0x%x\n", 3865 mb->mbxStatus); 3866 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3867 kfree(mp); 3868 mempool_free(pmb, phba->mbox_mem_pool); 3869 3870 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3871 /* FLOGI failed, use loop map to make discovery list */ 3872 lpfc_disc_list_loopmap(vport); 3873 3874 /* Start discovery */ 3875 lpfc_disc_start(vport); 3876 /* Decrement the reference count to ndlp after the 3877 * reference to the ndlp are done. 3878 */ 3879 lpfc_nlp_put(ndlp); 3880 return; 3881 } 3882 3883 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3884 /* Decrement the reference count to ndlp after the reference 3885 * to the ndlp are done. 3886 */ 3887 lpfc_nlp_put(ndlp); 3888 return; 3889 } 3890 3891 if (phba->sli_rev < LPFC_SLI_REV4) 3892 ndlp->nlp_rpi = mb->un.varWords[0]; 3893 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3894 ndlp->nlp_type |= NLP_FABRIC; 3895 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3896 3897 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3898 /* when physical port receive logo donot start 3899 * vport discovery */ 3900 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3901 lpfc_start_fdiscs(phba); 3902 else { 3903 shost = lpfc_shost_from_vport(vport); 3904 spin_lock_irq(shost->host_lock); 3905 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3906 spin_unlock_irq(shost->host_lock); 3907 } 3908 lpfc_do_scr_ns_plogi(phba, vport); 3909 } 3910 3911 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3912 kfree(mp); 3913 mempool_free(pmb, phba->mbox_mem_pool); 3914 3915 /* Drop the reference count from the mbox at the end after 3916 * all the current reference to the ndlp have been done. 3917 */ 3918 lpfc_nlp_put(ndlp); 3919 return; 3920 } 3921 3922 /* 3923 * This routine will issue a GID_FT for each FC4 Type supported 3924 * by the driver. ALL GID_FTs must complete before discovery is started. 3925 */ 3926 int 3927 lpfc_issue_gidft(struct lpfc_vport *vport) 3928 { 3929 /* Good status, issue CT Request to NameServer */ 3930 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3931 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3932 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3933 /* Cannot issue NameServer FCP Query, so finish up 3934 * discovery 3935 */ 3936 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3937 "0604 %s FC TYPE %x %s\n", 3938 "Failed to issue GID_FT to ", 3939 FC_TYPE_FCP, 3940 "Finishing discovery."); 3941 return 0; 3942 } 3943 vport->gidft_inp++; 3944 } 3945 3946 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3947 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3948 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3949 /* Cannot issue NameServer NVME Query, so finish up 3950 * discovery 3951 */ 3952 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3953 "0605 %s FC_TYPE %x %s %d\n", 3954 "Failed to issue GID_FT to ", 3955 FC_TYPE_NVME, 3956 "Finishing discovery: gidftinp ", 3957 vport->gidft_inp); 3958 if (vport->gidft_inp == 0) 3959 return 0; 3960 } else 3961 vport->gidft_inp++; 3962 } 3963 return vport->gidft_inp; 3964 } 3965 3966 /** 3967 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 3968 * @vport: The virtual port for which this call is being executed. 3969 * 3970 * This routine will issue a GID_PT to get a list of all N_Ports 3971 * 3972 * Return value : 3973 * 0 - Failure to issue a GID_PT 3974 * 1 - GID_PT issued 3975 **/ 3976 int 3977 lpfc_issue_gidpt(struct lpfc_vport *vport) 3978 { 3979 /* Good status, issue CT Request to NameServer */ 3980 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 3981 /* Cannot issue NameServer FCP Query, so finish up 3982 * discovery 3983 */ 3984 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3985 "0606 %s Port TYPE %x %s\n", 3986 "Failed to issue GID_PT to ", 3987 GID_PT_N_PORT, 3988 "Finishing discovery."); 3989 return 0; 3990 } 3991 vport->gidft_inp++; 3992 return 1; 3993 } 3994 3995 /* 3996 * This routine handles processing a NameServer REG_LOGIN mailbox 3997 * command upon completion. It is setup in the LPFC_MBOXQ 3998 * as the completion routine when the command is 3999 * handed off to the SLI layer. 4000 */ 4001 void 4002 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4003 { 4004 MAILBOX_t *mb = &pmb->u.mb; 4005 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4006 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4007 struct lpfc_vport *vport = pmb->vport; 4008 4009 pmb->ctx_buf = NULL; 4010 pmb->ctx_ndlp = NULL; 4011 vport->gidft_inp = 0; 4012 4013 if (mb->mbxStatus) { 4014 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4015 "0260 Register NameServer error: 0x%x\n", 4016 mb->mbxStatus); 4017 4018 out: 4019 /* decrement the node reference count held for this 4020 * callback function. 4021 */ 4022 lpfc_nlp_put(ndlp); 4023 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4024 kfree(mp); 4025 mempool_free(pmb, phba->mbox_mem_pool); 4026 4027 /* If no other thread is using the ndlp, free it */ 4028 lpfc_nlp_not_used(ndlp); 4029 4030 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4031 /* 4032 * RegLogin failed, use loop map to make discovery 4033 * list 4034 */ 4035 lpfc_disc_list_loopmap(vport); 4036 4037 /* Start discovery */ 4038 lpfc_disc_start(vport); 4039 return; 4040 } 4041 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4042 return; 4043 } 4044 4045 if (phba->sli_rev < LPFC_SLI_REV4) 4046 ndlp->nlp_rpi = mb->un.varWords[0]; 4047 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4048 ndlp->nlp_type |= NLP_FABRIC; 4049 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4050 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4051 "0003 rpi:%x DID:%x flg:%x %d map%x x%px\n", 4052 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4053 kref_read(&ndlp->kref), 4054 ndlp->nlp_usg_map, ndlp); 4055 4056 if (vport->port_state < LPFC_VPORT_READY) { 4057 /* Link up discovery requires Fabric registration. */ 4058 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4059 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4060 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4061 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4062 4063 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4064 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4065 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4066 4067 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4068 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4069 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4070 FC_TYPE_NVME); 4071 4072 /* Issue SCR just before NameServer GID_FT Query */ 4073 lpfc_issue_els_scr(vport, SCR_DID, 0); 4074 } 4075 4076 vport->fc_ns_retry = 0; 4077 if (lpfc_issue_gidft(vport) == 0) 4078 goto out; 4079 4080 /* 4081 * At this point in time we may need to wait for multiple 4082 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4083 * 4084 * decrement the node reference count held for this 4085 * callback function. 4086 */ 4087 lpfc_nlp_put(ndlp); 4088 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4089 kfree(mp); 4090 mempool_free(pmb, phba->mbox_mem_pool); 4091 4092 return; 4093 } 4094 4095 static void 4096 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4097 { 4098 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4099 struct fc_rport *rport; 4100 struct lpfc_rport_data *rdata; 4101 struct fc_rport_identifiers rport_ids; 4102 struct lpfc_hba *phba = vport->phba; 4103 4104 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4105 return; 4106 4107 /* Remote port has reappeared. Re-register w/ FC transport */ 4108 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4109 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4110 rport_ids.port_id = ndlp->nlp_DID; 4111 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4112 4113 /* 4114 * We leave our node pointer in rport->dd_data when we unregister a 4115 * FCP target port. But fc_remote_port_add zeros the space to which 4116 * rport->dd_data points. So, if we're reusing a previously 4117 * registered port, drop the reference that we took the last time we 4118 * registered the port. 4119 */ 4120 rport = ndlp->rport; 4121 if (rport) { 4122 rdata = rport->dd_data; 4123 /* break the link before dropping the ref */ 4124 ndlp->rport = NULL; 4125 if (rdata) { 4126 if (rdata->pnode == ndlp) 4127 lpfc_nlp_put(ndlp); 4128 rdata->pnode = NULL; 4129 } 4130 /* drop reference for earlier registeration */ 4131 put_device(&rport->dev); 4132 } 4133 4134 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4135 "rport add: did:x%x flg:x%x type x%x", 4136 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4137 4138 /* Don't add the remote port if unloading. */ 4139 if (vport->load_flag & FC_UNLOADING) 4140 return; 4141 4142 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4143 if (!rport || !get_device(&rport->dev)) { 4144 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4145 "Warning: fc_remote_port_add failed\n"); 4146 return; 4147 } 4148 4149 /* initialize static port data */ 4150 rport->maxframe_size = ndlp->nlp_maxframe; 4151 rport->supported_classes = ndlp->nlp_class_sup; 4152 rdata = rport->dd_data; 4153 rdata->pnode = lpfc_nlp_get(ndlp); 4154 4155 if (ndlp->nlp_type & NLP_FCP_TARGET) 4156 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4157 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4158 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4159 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4160 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4161 if (ndlp->nlp_type & NLP_NVME_TARGET) 4162 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4163 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4164 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4165 4166 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4167 fc_remote_port_rolechg(rport, rport_ids.roles); 4168 4169 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4170 "3183 rport register x%06x, rport x%px role x%x\n", 4171 ndlp->nlp_DID, rport, rport_ids.roles); 4172 4173 if ((rport->scsi_target_id != -1) && 4174 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4175 ndlp->nlp_sid = rport->scsi_target_id; 4176 } 4177 return; 4178 } 4179 4180 static void 4181 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4182 { 4183 struct fc_rport *rport = ndlp->rport; 4184 struct lpfc_vport *vport = ndlp->vport; 4185 4186 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4187 return; 4188 4189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4190 "rport delete: did:x%x flg:x%x type x%x", 4191 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4192 4193 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4194 "3184 rport unregister x%06x, rport x%px\n", 4195 ndlp->nlp_DID, rport); 4196 4197 fc_remote_port_delete(rport); 4198 4199 return; 4200 } 4201 4202 static void 4203 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4204 { 4205 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4206 unsigned long iflags; 4207 4208 spin_lock_irqsave(shost->host_lock, iflags); 4209 switch (state) { 4210 case NLP_STE_UNUSED_NODE: 4211 vport->fc_unused_cnt += count; 4212 break; 4213 case NLP_STE_PLOGI_ISSUE: 4214 vport->fc_plogi_cnt += count; 4215 break; 4216 case NLP_STE_ADISC_ISSUE: 4217 vport->fc_adisc_cnt += count; 4218 break; 4219 case NLP_STE_REG_LOGIN_ISSUE: 4220 vport->fc_reglogin_cnt += count; 4221 break; 4222 case NLP_STE_PRLI_ISSUE: 4223 vport->fc_prli_cnt += count; 4224 break; 4225 case NLP_STE_UNMAPPED_NODE: 4226 vport->fc_unmap_cnt += count; 4227 break; 4228 case NLP_STE_MAPPED_NODE: 4229 vport->fc_map_cnt += count; 4230 break; 4231 case NLP_STE_NPR_NODE: 4232 if (vport->fc_npr_cnt == 0 && count == -1) 4233 vport->fc_npr_cnt = 0; 4234 else 4235 vport->fc_npr_cnt += count; 4236 break; 4237 } 4238 spin_unlock_irqrestore(shost->host_lock, iflags); 4239 } 4240 4241 static void 4242 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4243 int old_state, int new_state) 4244 { 4245 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4246 4247 if (new_state == NLP_STE_UNMAPPED_NODE) { 4248 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4249 ndlp->nlp_type |= NLP_FC_NODE; 4250 } 4251 if (new_state == NLP_STE_MAPPED_NODE) 4252 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4253 if (new_state == NLP_STE_NPR_NODE) 4254 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4255 4256 /* FCP and NVME Transport interface */ 4257 if ((old_state == NLP_STE_MAPPED_NODE || 4258 old_state == NLP_STE_UNMAPPED_NODE)) { 4259 if (ndlp->rport) { 4260 vport->phba->nport_event_cnt++; 4261 lpfc_unregister_remote_port(ndlp); 4262 } 4263 4264 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4265 vport->phba->nport_event_cnt++; 4266 if (vport->phba->nvmet_support == 0) { 4267 /* Start devloss if target. */ 4268 if (ndlp->nlp_type & NLP_NVME_TARGET) 4269 lpfc_nvme_unregister_port(vport, ndlp); 4270 } else { 4271 /* NVMET has no upcall. */ 4272 lpfc_nlp_put(ndlp); 4273 } 4274 } 4275 } 4276 4277 /* FCP and NVME Transport interfaces */ 4278 4279 if (new_state == NLP_STE_MAPPED_NODE || 4280 new_state == NLP_STE_UNMAPPED_NODE) { 4281 if (ndlp->nlp_fc4_type || 4282 ndlp->nlp_DID == Fabric_DID || 4283 ndlp->nlp_DID == NameServer_DID || 4284 ndlp->nlp_DID == FDMI_DID) { 4285 vport->phba->nport_event_cnt++; 4286 /* 4287 * Tell the fc transport about the port, if we haven't 4288 * already. If we have, and it's a scsi entity, be 4289 */ 4290 lpfc_register_remote_port(vport, ndlp); 4291 } 4292 /* Notify the NVME transport of this new rport. */ 4293 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4294 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4295 if (vport->phba->nvmet_support == 0) { 4296 /* Register this rport with the transport. 4297 * Only NVME Target Rports are registered with 4298 * the transport. 4299 */ 4300 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4301 vport->phba->nport_event_cnt++; 4302 lpfc_nvme_register_port(vport, ndlp); 4303 } 4304 } else { 4305 /* Just take an NDLP ref count since the 4306 * target does not register rports. 4307 */ 4308 lpfc_nlp_get(ndlp); 4309 } 4310 } 4311 } 4312 4313 if ((new_state == NLP_STE_MAPPED_NODE) && 4314 (vport->stat_data_enabled)) { 4315 /* 4316 * A new target is discovered, if there is no buffer for 4317 * statistical data collection allocate buffer. 4318 */ 4319 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4320 sizeof(struct lpfc_scsicmd_bkt), 4321 GFP_KERNEL); 4322 4323 if (!ndlp->lat_data) 4324 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4325 "0286 lpfc_nlp_state_cleanup failed to " 4326 "allocate statistical data buffer DID " 4327 "0x%x\n", ndlp->nlp_DID); 4328 } 4329 /* 4330 * If the node just added to Mapped list was an FCP target, 4331 * but the remote port registration failed or assigned a target 4332 * id outside the presentable range - move the node to the 4333 * Unmapped List. 4334 */ 4335 if ((new_state == NLP_STE_MAPPED_NODE) && 4336 (ndlp->nlp_type & NLP_FCP_TARGET) && 4337 (!ndlp->rport || 4338 ndlp->rport->scsi_target_id == -1 || 4339 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4340 spin_lock_irq(shost->host_lock); 4341 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4342 spin_unlock_irq(shost->host_lock); 4343 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4344 } 4345 } 4346 4347 static char * 4348 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4349 { 4350 static char *states[] = { 4351 [NLP_STE_UNUSED_NODE] = "UNUSED", 4352 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4353 [NLP_STE_ADISC_ISSUE] = "ADISC", 4354 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4355 [NLP_STE_PRLI_ISSUE] = "PRLI", 4356 [NLP_STE_LOGO_ISSUE] = "LOGO", 4357 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4358 [NLP_STE_MAPPED_NODE] = "MAPPED", 4359 [NLP_STE_NPR_NODE] = "NPR", 4360 }; 4361 4362 if (state < NLP_STE_MAX_STATE && states[state]) 4363 strlcpy(buffer, states[state], size); 4364 else 4365 snprintf(buffer, size, "unknown (%d)", state); 4366 return buffer; 4367 } 4368 4369 void 4370 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4371 int state) 4372 { 4373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4374 int old_state = ndlp->nlp_state; 4375 char name1[16], name2[16]; 4376 4377 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4378 "0904 NPort state transition x%06x, %s -> %s\n", 4379 ndlp->nlp_DID, 4380 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4381 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4382 4383 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4384 "node statechg did:x%x old:%d ste:%d", 4385 ndlp->nlp_DID, old_state, state); 4386 4387 if (old_state == NLP_STE_NPR_NODE && 4388 state != NLP_STE_NPR_NODE) 4389 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4390 if (old_state == NLP_STE_UNMAPPED_NODE) { 4391 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4392 ndlp->nlp_type &= ~NLP_FC_NODE; 4393 } 4394 4395 if (list_empty(&ndlp->nlp_listp)) { 4396 spin_lock_irq(shost->host_lock); 4397 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4398 spin_unlock_irq(shost->host_lock); 4399 } else if (old_state) 4400 lpfc_nlp_counters(vport, old_state, -1); 4401 4402 ndlp->nlp_state = state; 4403 lpfc_nlp_counters(vport, state, 1); 4404 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4405 } 4406 4407 void 4408 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4409 { 4410 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4411 4412 if (list_empty(&ndlp->nlp_listp)) { 4413 spin_lock_irq(shost->host_lock); 4414 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4415 spin_unlock_irq(shost->host_lock); 4416 } 4417 } 4418 4419 void 4420 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4421 { 4422 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4423 4424 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4425 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4426 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4427 spin_lock_irq(shost->host_lock); 4428 list_del_init(&ndlp->nlp_listp); 4429 spin_unlock_irq(shost->host_lock); 4430 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4431 NLP_STE_UNUSED_NODE); 4432 } 4433 4434 static void 4435 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4436 { 4437 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4438 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4439 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4440 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4441 NLP_STE_UNUSED_NODE); 4442 } 4443 /** 4444 * lpfc_initialize_node - Initialize all fields of node object 4445 * @vport: Pointer to Virtual Port object. 4446 * @ndlp: Pointer to FC node object. 4447 * @did: FC_ID of the node. 4448 * 4449 * This function is always called when node object need to be initialized. 4450 * It initializes all the fields of the node object. Although the reference 4451 * to phba from @ndlp can be obtained indirectly through it's reference to 4452 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4453 * to the life-span of the @ndlp might go beyond the existence of @vport as 4454 * the final release of ndlp is determined by its reference count. And, the 4455 * operation on @ndlp needs the reference to phba. 4456 **/ 4457 static inline void 4458 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4459 uint32_t did) 4460 { 4461 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4462 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4463 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4464 ndlp->nlp_DID = did; 4465 ndlp->vport = vport; 4466 ndlp->phba = vport->phba; 4467 ndlp->nlp_sid = NLP_NO_SID; 4468 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4469 kref_init(&ndlp->kref); 4470 NLP_INT_NODE_ACT(ndlp); 4471 atomic_set(&ndlp->cmd_pending, 0); 4472 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4473 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4474 } 4475 4476 struct lpfc_nodelist * 4477 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4478 int state) 4479 { 4480 struct lpfc_hba *phba = vport->phba; 4481 uint32_t did, flag; 4482 unsigned long flags; 4483 unsigned long *active_rrqs_xri_bitmap = NULL; 4484 int rpi = LPFC_RPI_ALLOC_ERROR; 4485 uint32_t defer_did = 0; 4486 4487 if (!ndlp) 4488 return NULL; 4489 4490 if (phba->sli_rev == LPFC_SLI_REV4) { 4491 if (ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR) 4492 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4493 else 4494 rpi = ndlp->nlp_rpi; 4495 4496 if (rpi == LPFC_RPI_ALLOC_ERROR) { 4497 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4498 "0359 %s: ndlp:x%px " 4499 "usgmap:x%x refcnt:%d FAILED RPI " 4500 " ALLOC\n", 4501 __func__, 4502 (void *)ndlp, ndlp->nlp_usg_map, 4503 kref_read(&ndlp->kref)); 4504 return NULL; 4505 } 4506 } 4507 4508 spin_lock_irqsave(&phba->ndlp_lock, flags); 4509 /* The ndlp should not be in memory free mode */ 4510 if (NLP_CHK_FREE_REQ(ndlp)) { 4511 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4512 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4513 "0277 %s: ndlp:x%px " 4514 "usgmap:x%x refcnt:%d\n", 4515 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4516 kref_read(&ndlp->kref)); 4517 goto free_rpi; 4518 } 4519 /* The ndlp should not already be in active mode */ 4520 if (NLP_CHK_NODE_ACT(ndlp)) { 4521 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4522 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4523 "0278 %s: ndlp:x%px " 4524 "usgmap:x%x refcnt:%d\n", 4525 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4526 kref_read(&ndlp->kref)); 4527 goto free_rpi; 4528 } 4529 4530 /* First preserve the orginal DID, xri_bitmap and some flags */ 4531 did = ndlp->nlp_DID; 4532 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4533 if (flag & NLP_UNREG_INP) 4534 defer_did = ndlp->nlp_defer_did; 4535 if (phba->sli_rev == LPFC_SLI_REV4) 4536 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4537 4538 /* Zero ndlp except of ndlp linked list pointer */ 4539 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4540 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4541 4542 /* Next reinitialize and restore saved objects */ 4543 lpfc_initialize_node(vport, ndlp, did); 4544 ndlp->nlp_flag |= flag; 4545 if (flag & NLP_UNREG_INP) 4546 ndlp->nlp_defer_did = defer_did; 4547 if (phba->sli_rev == LPFC_SLI_REV4) 4548 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4549 4550 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4551 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4552 ndlp->nlp_rpi = rpi; 4553 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4554 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4555 "map:%x x%px\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4556 ndlp->nlp_flag, 4557 kref_read(&ndlp->kref), 4558 ndlp->nlp_usg_map, ndlp); 4559 } 4560 4561 4562 if (state != NLP_STE_UNUSED_NODE) 4563 lpfc_nlp_set_state(vport, ndlp, state); 4564 else 4565 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4566 "0013 rpi:%x DID:%x flg:%x refcnt:%d " 4567 "map:%x x%px STATE=UNUSED\n", 4568 ndlp->nlp_rpi, ndlp->nlp_DID, 4569 ndlp->nlp_flag, 4570 kref_read(&ndlp->kref), 4571 ndlp->nlp_usg_map, ndlp); 4572 4573 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4574 "node enable: did:x%x", 4575 ndlp->nlp_DID, 0, 0); 4576 return ndlp; 4577 4578 free_rpi: 4579 if (phba->sli_rev == LPFC_SLI_REV4) { 4580 lpfc_sli4_free_rpi(vport->phba, rpi); 4581 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4582 } 4583 return NULL; 4584 } 4585 4586 void 4587 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4588 { 4589 /* 4590 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4591 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4592 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4593 * until ALL other outstanding threads have completed. We check 4594 * that the ndlp not already in the UNUSED state before we proceed. 4595 */ 4596 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4597 return; 4598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4599 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4600 lpfc_cleanup_vports_rrqs(vport, ndlp); 4601 lpfc_unreg_rpi(vport, ndlp); 4602 } 4603 4604 lpfc_nlp_put(ndlp); 4605 return; 4606 } 4607 4608 /* 4609 * Start / ReStart rescue timer for Discovery / RSCN handling 4610 */ 4611 void 4612 lpfc_set_disctmo(struct lpfc_vport *vport) 4613 { 4614 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4615 struct lpfc_hba *phba = vport->phba; 4616 uint32_t tmo; 4617 4618 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4619 /* For FAN, timeout should be greater than edtov */ 4620 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4621 } else { 4622 /* Normal discovery timeout should be > than ELS/CT timeout 4623 * FC spec states we need 3 * ratov for CT requests 4624 */ 4625 tmo = ((phba->fc_ratov * 3) + 3); 4626 } 4627 4628 4629 if (!timer_pending(&vport->fc_disctmo)) { 4630 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4631 "set disc timer: tmo:x%x state:x%x flg:x%x", 4632 tmo, vport->port_state, vport->fc_flag); 4633 } 4634 4635 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4636 spin_lock_irq(shost->host_lock); 4637 vport->fc_flag |= FC_DISC_TMO; 4638 spin_unlock_irq(shost->host_lock); 4639 4640 /* Start Discovery Timer state <hba_state> */ 4641 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4642 "0247 Start Discovery Timer state x%x " 4643 "Data: x%x x%lx x%x x%x\n", 4644 vport->port_state, tmo, 4645 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4646 vport->fc_adisc_cnt); 4647 4648 return; 4649 } 4650 4651 /* 4652 * Cancel rescue timer for Discovery / RSCN handling 4653 */ 4654 int 4655 lpfc_can_disctmo(struct lpfc_vport *vport) 4656 { 4657 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4658 unsigned long iflags; 4659 4660 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4661 "can disc timer: state:x%x rtry:x%x flg:x%x", 4662 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4663 4664 /* Turn off discovery timer if its running */ 4665 if (vport->fc_flag & FC_DISC_TMO) { 4666 spin_lock_irqsave(shost->host_lock, iflags); 4667 vport->fc_flag &= ~FC_DISC_TMO; 4668 spin_unlock_irqrestore(shost->host_lock, iflags); 4669 del_timer_sync(&vport->fc_disctmo); 4670 spin_lock_irqsave(&vport->work_port_lock, iflags); 4671 vport->work_port_events &= ~WORKER_DISC_TMO; 4672 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4673 } 4674 4675 /* Cancel Discovery Timer state <hba_state> */ 4676 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4677 "0248 Cancel Discovery Timer state x%x " 4678 "Data: x%x x%x x%x\n", 4679 vport->port_state, vport->fc_flag, 4680 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4681 return 0; 4682 } 4683 4684 /* 4685 * Check specified ring for outstanding IOCB on the SLI queue 4686 * Return true if iocb matches the specified nport 4687 */ 4688 int 4689 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4690 struct lpfc_sli_ring *pring, 4691 struct lpfc_iocbq *iocb, 4692 struct lpfc_nodelist *ndlp) 4693 { 4694 IOCB_t *icmd = &iocb->iocb; 4695 struct lpfc_vport *vport = ndlp->vport; 4696 4697 if (iocb->vport != vport) 4698 return 0; 4699 4700 if (pring->ringno == LPFC_ELS_RING) { 4701 switch (icmd->ulpCommand) { 4702 case CMD_GEN_REQUEST64_CR: 4703 if (iocb->context_un.ndlp == ndlp) 4704 return 1; 4705 /* fall through */ 4706 case CMD_ELS_REQUEST64_CR: 4707 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4708 return 1; 4709 /* fall through */ 4710 case CMD_XMIT_ELS_RSP64_CX: 4711 if (iocb->context1 == (uint8_t *) ndlp) 4712 return 1; 4713 /* fall through */ 4714 } 4715 } else if (pring->ringno == LPFC_FCP_RING) { 4716 /* Skip match check if waiting to relogin to FCP target */ 4717 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4718 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4719 return 0; 4720 } 4721 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4722 return 1; 4723 } 4724 } 4725 return 0; 4726 } 4727 4728 static void 4729 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4730 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4731 struct list_head *dequeue_list) 4732 { 4733 struct lpfc_iocbq *iocb, *next_iocb; 4734 4735 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4736 /* Check to see if iocb matches the nport */ 4737 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4738 /* match, dequeue */ 4739 list_move_tail(&iocb->list, dequeue_list); 4740 } 4741 } 4742 4743 static void 4744 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4745 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4746 { 4747 struct lpfc_sli *psli = &phba->sli; 4748 uint32_t i; 4749 4750 spin_lock_irq(&phba->hbalock); 4751 for (i = 0; i < psli->num_rings; i++) 4752 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4753 dequeue_list); 4754 spin_unlock_irq(&phba->hbalock); 4755 } 4756 4757 static void 4758 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4759 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4760 { 4761 struct lpfc_sli_ring *pring; 4762 struct lpfc_queue *qp = NULL; 4763 4764 spin_lock_irq(&phba->hbalock); 4765 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4766 pring = qp->pring; 4767 if (!pring) 4768 continue; 4769 spin_lock(&pring->ring_lock); 4770 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4771 spin_unlock(&pring->ring_lock); 4772 } 4773 spin_unlock_irq(&phba->hbalock); 4774 } 4775 4776 /* 4777 * Free resources / clean up outstanding I/Os 4778 * associated with nlp_rpi in the LPFC_NODELIST entry. 4779 */ 4780 static int 4781 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4782 { 4783 LIST_HEAD(completions); 4784 4785 lpfc_fabric_abort_nport(ndlp); 4786 4787 /* 4788 * Everything that matches on txcmplq will be returned 4789 * by firmware with a no rpi error. 4790 */ 4791 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4792 if (phba->sli_rev != LPFC_SLI_REV4) 4793 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4794 else 4795 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4796 } 4797 4798 /* Cancel all the IOCBs from the completions list */ 4799 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4800 IOERR_SLI_ABORTED); 4801 4802 return 0; 4803 } 4804 4805 /** 4806 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4807 * @phba: Pointer to HBA context object. 4808 * @pmb: Pointer to mailbox object. 4809 * 4810 * This function will issue an ELS LOGO command after completing 4811 * the UNREG_RPI. 4812 **/ 4813 static void 4814 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4815 { 4816 struct lpfc_vport *vport = pmb->vport; 4817 struct lpfc_nodelist *ndlp; 4818 4819 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4820 if (!ndlp) 4821 return; 4822 lpfc_issue_els_logo(vport, ndlp, 0); 4823 mempool_free(pmb, phba->mbox_mem_pool); 4824 4825 /* Check to see if there are any deferred events to process */ 4826 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4827 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4828 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4829 "1434 UNREG cmpl deferred logo x%x " 4830 "on NPort x%x Data: x%x x%px\n", 4831 ndlp->nlp_rpi, ndlp->nlp_DID, 4832 ndlp->nlp_defer_did, ndlp); 4833 4834 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4835 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4836 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4837 } else { 4838 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 4839 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 4840 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 4841 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4842 } 4843 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4844 } 4845 } 4846 4847 /* 4848 * Sets the mailbox completion handler to be used for the 4849 * unreg_rpi command. The handler varies based on the state of 4850 * the port and what will be happening to the rpi next. 4851 */ 4852 static void 4853 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 4854 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 4855 { 4856 unsigned long iflags; 4857 4858 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4859 mbox->ctx_ndlp = ndlp; 4860 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4861 4862 } else if (phba->sli_rev == LPFC_SLI_REV4 && 4863 (!(vport->load_flag & FC_UNLOADING)) && 4864 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 4865 LPFC_SLI_INTF_IF_TYPE_2) && 4866 (kref_read(&ndlp->kref) > 0)) { 4867 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4868 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 4869 } else { 4870 if (vport->load_flag & FC_UNLOADING) { 4871 if (phba->sli_rev == LPFC_SLI_REV4) { 4872 spin_lock_irqsave(&vport->phba->ndlp_lock, 4873 iflags); 4874 ndlp->nlp_flag |= NLP_RELEASE_RPI; 4875 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 4876 iflags); 4877 } 4878 lpfc_nlp_get(ndlp); 4879 } 4880 mbox->ctx_ndlp = ndlp; 4881 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4882 } 4883 } 4884 4885 /* 4886 * Free rpi associated with LPFC_NODELIST entry. 4887 * This routine is called from lpfc_freenode(), when we are removing 4888 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4889 * LOGO that completes successfully, and we are waiting to PLOGI back 4890 * to the remote NPort. In addition, it is called after we receive 4891 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4892 * we are waiting to PLOGI back to the remote NPort. 4893 */ 4894 int 4895 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4896 { 4897 struct lpfc_hba *phba = vport->phba; 4898 LPFC_MBOXQ_t *mbox; 4899 int rc, acc_plogi = 1; 4900 uint16_t rpi; 4901 4902 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4903 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4904 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4905 lpfc_printf_vlog(vport, KERN_INFO, 4906 LOG_NODE | LOG_DISCOVERY, 4907 "3366 RPI x%x needs to be " 4908 "unregistered nlp_flag x%x " 4909 "did x%x\n", 4910 ndlp->nlp_rpi, ndlp->nlp_flag, 4911 ndlp->nlp_DID); 4912 4913 /* If there is already an UNREG in progress for this ndlp, 4914 * no need to queue up another one. 4915 */ 4916 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4917 lpfc_printf_vlog(vport, KERN_INFO, 4918 LOG_NODE | LOG_DISCOVERY, 4919 "1436 unreg_rpi SKIP UNREG x%x on " 4920 "NPort x%x deferred x%x flg x%x " 4921 "Data: x%px\n", 4922 ndlp->nlp_rpi, ndlp->nlp_DID, 4923 ndlp->nlp_defer_did, 4924 ndlp->nlp_flag, ndlp); 4925 goto out; 4926 } 4927 4928 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4929 if (mbox) { 4930 /* SLI4 ports require the physical rpi value. */ 4931 rpi = ndlp->nlp_rpi; 4932 if (phba->sli_rev == LPFC_SLI_REV4) 4933 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4934 4935 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4936 mbox->vport = vport; 4937 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 4938 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 4939 /* 4940 * accept PLOGIs after unreg_rpi_cmpl 4941 */ 4942 acc_plogi = 0; 4943 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 4944 Fabric_DID_MASK) && 4945 (!(vport->fc_flag & FC_OFFLINE_MODE))) 4946 ndlp->nlp_flag |= NLP_UNREG_INP; 4947 4948 lpfc_printf_vlog(vport, KERN_INFO, 4949 LOG_NODE | LOG_DISCOVERY, 4950 "1433 unreg_rpi UNREG x%x on " 4951 "NPort x%x deferred flg x%x " 4952 "Data:x%px\n", 4953 ndlp->nlp_rpi, ndlp->nlp_DID, 4954 ndlp->nlp_flag, ndlp); 4955 4956 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4957 if (rc == MBX_NOT_FINISHED) { 4958 mempool_free(mbox, phba->mbox_mem_pool); 4959 acc_plogi = 1; 4960 } 4961 } 4962 lpfc_no_rpi(phba, ndlp); 4963 out: 4964 if (phba->sli_rev != LPFC_SLI_REV4) 4965 ndlp->nlp_rpi = 0; 4966 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4967 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4968 if (acc_plogi) 4969 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4970 return 1; 4971 } 4972 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4973 return 0; 4974 } 4975 4976 /** 4977 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4978 * @phba: pointer to lpfc hba data structure. 4979 * 4980 * This routine is invoked to unregister all the currently registered RPIs 4981 * to the HBA. 4982 **/ 4983 void 4984 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4985 { 4986 struct lpfc_vport **vports; 4987 struct lpfc_nodelist *ndlp; 4988 struct Scsi_Host *shost; 4989 int i; 4990 4991 vports = lpfc_create_vport_work_array(phba); 4992 if (!vports) { 4993 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4994 "2884 Vport array allocation failed \n"); 4995 return; 4996 } 4997 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4998 shost = lpfc_shost_from_vport(vports[i]); 4999 spin_lock_irq(shost->host_lock); 5000 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5001 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5002 /* The mempool_alloc might sleep */ 5003 spin_unlock_irq(shost->host_lock); 5004 lpfc_unreg_rpi(vports[i], ndlp); 5005 spin_lock_irq(shost->host_lock); 5006 } 5007 } 5008 spin_unlock_irq(shost->host_lock); 5009 } 5010 lpfc_destroy_vport_work_array(phba, vports); 5011 } 5012 5013 void 5014 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5015 { 5016 struct lpfc_hba *phba = vport->phba; 5017 LPFC_MBOXQ_t *mbox; 5018 int rc; 5019 5020 if (phba->sli_rev == LPFC_SLI_REV4) { 5021 lpfc_sli4_unreg_all_rpis(vport); 5022 return; 5023 } 5024 5025 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5026 if (mbox) { 5027 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5028 mbox); 5029 mbox->vport = vport; 5030 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5031 mbox->ctx_ndlp = NULL; 5032 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5033 if (rc != MBX_TIMEOUT) 5034 mempool_free(mbox, phba->mbox_mem_pool); 5035 5036 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5037 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5038 "1836 Could not issue " 5039 "unreg_login(all_rpis) status %d\n", rc); 5040 } 5041 } 5042 5043 void 5044 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5045 { 5046 struct lpfc_hba *phba = vport->phba; 5047 LPFC_MBOXQ_t *mbox; 5048 int rc; 5049 5050 /* Unreg DID is an SLI3 operation. */ 5051 if (phba->sli_rev > LPFC_SLI_REV3) 5052 return; 5053 5054 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5055 if (mbox) { 5056 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5057 mbox); 5058 mbox->vport = vport; 5059 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5060 mbox->ctx_ndlp = NULL; 5061 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5062 if (rc != MBX_TIMEOUT) 5063 mempool_free(mbox, phba->mbox_mem_pool); 5064 5065 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5066 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5067 "1815 Could not issue " 5068 "unreg_did (default rpis) status %d\n", 5069 rc); 5070 } 5071 } 5072 5073 /* 5074 * Free resources associated with LPFC_NODELIST entry 5075 * so it can be freed. 5076 */ 5077 static int 5078 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5079 { 5080 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5081 struct lpfc_hba *phba = vport->phba; 5082 LPFC_MBOXQ_t *mb, *nextmb; 5083 struct lpfc_dmabuf *mp; 5084 unsigned long iflags; 5085 5086 /* Cleanup node for NPort <nlp_DID> */ 5087 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5088 "0900 Cleanup node for NPort x%x " 5089 "Data: x%x x%x x%x\n", 5090 ndlp->nlp_DID, ndlp->nlp_flag, 5091 ndlp->nlp_state, ndlp->nlp_rpi); 5092 if (NLP_CHK_FREE_REQ(ndlp)) { 5093 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5094 "0280 %s: ndlp:x%px " 5095 "usgmap:x%x refcnt:%d\n", 5096 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5097 kref_read(&ndlp->kref)); 5098 lpfc_dequeue_node(vport, ndlp); 5099 } else { 5100 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5101 "0281 %s: ndlp:x%px " 5102 "usgmap:x%x refcnt:%d\n", 5103 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5104 kref_read(&ndlp->kref)); 5105 lpfc_disable_node(vport, ndlp); 5106 } 5107 5108 5109 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5110 5111 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5112 if ((mb = phba->sli.mbox_active)) { 5113 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5114 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5115 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5116 mb->ctx_ndlp = NULL; 5117 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5118 } 5119 } 5120 5121 spin_lock_irq(&phba->hbalock); 5122 /* Cleanup REG_LOGIN completions which are not yet processed */ 5123 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5124 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5125 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5126 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5127 continue; 5128 5129 mb->ctx_ndlp = NULL; 5130 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5131 } 5132 5133 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5134 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5135 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5136 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5137 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5138 if (mp) { 5139 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5140 kfree(mp); 5141 } 5142 list_del(&mb->list); 5143 mempool_free(mb, phba->mbox_mem_pool); 5144 /* We shall not invoke the lpfc_nlp_put to decrement 5145 * the ndlp reference count as we are in the process 5146 * of lpfc_nlp_release. 5147 */ 5148 } 5149 } 5150 spin_unlock_irq(&phba->hbalock); 5151 5152 lpfc_els_abort(phba, ndlp); 5153 5154 spin_lock_irq(shost->host_lock); 5155 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5156 spin_unlock_irq(shost->host_lock); 5157 5158 ndlp->nlp_last_elscmd = 0; 5159 del_timer_sync(&ndlp->nlp_delayfunc); 5160 5161 list_del_init(&ndlp->els_retry_evt.evt_listp); 5162 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5163 lpfc_cleanup_vports_rrqs(vport, ndlp); 5164 if (phba->sli_rev == LPFC_SLI_REV4) 5165 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5166 if (!lpfc_unreg_rpi(vport, ndlp)) { 5167 /* Clean up unregistered and non freed rpis */ 5168 if ((ndlp->nlp_flag & NLP_RELEASE_RPI) && 5169 !(ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)) { 5170 lpfc_sli4_free_rpi(vport->phba, 5171 ndlp->nlp_rpi); 5172 spin_lock_irqsave(&vport->phba->ndlp_lock, 5173 iflags); 5174 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5175 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5176 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 5177 iflags); 5178 } 5179 } 5180 return 0; 5181 } 5182 5183 /* 5184 * Check to see if we can free the nlp back to the freelist. 5185 * If we are in the middle of using the nlp in the discovery state 5186 * machine, defer the free till we reach the end of the state machine. 5187 */ 5188 static void 5189 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5190 { 5191 struct lpfc_hba *phba = vport->phba; 5192 struct lpfc_rport_data *rdata; 5193 struct fc_rport *rport; 5194 LPFC_MBOXQ_t *mbox; 5195 int rc; 5196 5197 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5198 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5199 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5200 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5201 phba->sli_rev != LPFC_SLI_REV4) { 5202 /* For this case we need to cleanup the default rpi 5203 * allocated by the firmware. 5204 */ 5205 lpfc_printf_vlog(vport, KERN_INFO, 5206 LOG_NODE | LOG_DISCOVERY, 5207 "0005 Cleanup Default rpi:x%x DID:x%x flg:x%x " 5208 "ref %d map:x%x ndlp x%px\n", 5209 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5210 kref_read(&ndlp->kref), 5211 ndlp->nlp_usg_map, ndlp); 5212 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5213 != NULL) { 5214 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5215 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5216 if (rc) { 5217 mempool_free(mbox, phba->mbox_mem_pool); 5218 } 5219 else { 5220 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5221 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5222 mbox->vport = vport; 5223 mbox->ctx_ndlp = ndlp; 5224 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5225 if (rc == MBX_NOT_FINISHED) { 5226 mempool_free(mbox, phba->mbox_mem_pool); 5227 } 5228 } 5229 } 5230 } 5231 lpfc_cleanup_node(vport, ndlp); 5232 5233 /* 5234 * ndlp->rport must be set to NULL before it reaches here 5235 * i.e. break rport/node link before doing lpfc_nlp_put for 5236 * registered rport and then drop the reference of rport. 5237 */ 5238 if (ndlp->rport) { 5239 /* 5240 * extra lpfc_nlp_put dropped the reference of ndlp 5241 * for registered rport so need to cleanup rport 5242 */ 5243 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5244 "0940 removed node x%px DID x%x " 5245 "rpi %d rport not null x%px\n", 5246 ndlp, ndlp->nlp_DID, ndlp->nlp_rpi, 5247 ndlp->rport); 5248 rport = ndlp->rport; 5249 rdata = rport->dd_data; 5250 rdata->pnode = NULL; 5251 ndlp->rport = NULL; 5252 put_device(&rport->dev); 5253 } 5254 } 5255 5256 static int 5257 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5258 uint32_t did) 5259 { 5260 D_ID mydid, ndlpdid, matchdid; 5261 5262 if (did == Bcast_DID) 5263 return 0; 5264 5265 /* First check for Direct match */ 5266 if (ndlp->nlp_DID == did) 5267 return 1; 5268 5269 /* Next check for area/domain identically equals 0 match */ 5270 mydid.un.word = vport->fc_myDID; 5271 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5272 return 0; 5273 } 5274 5275 matchdid.un.word = did; 5276 ndlpdid.un.word = ndlp->nlp_DID; 5277 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5278 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5279 (mydid.un.b.area == matchdid.un.b.area)) { 5280 /* This code is supposed to match the ID 5281 * for a private loop device that is 5282 * connect to fl_port. But we need to 5283 * check that the port did not just go 5284 * from pt2pt to fabric or we could end 5285 * up matching ndlp->nlp_DID 000001 to 5286 * fabric DID 0x20101 5287 */ 5288 if ((ndlpdid.un.b.domain == 0) && 5289 (ndlpdid.un.b.area == 0)) { 5290 if (ndlpdid.un.b.id && 5291 vport->phba->fc_topology == 5292 LPFC_TOPOLOGY_LOOP) 5293 return 1; 5294 } 5295 return 0; 5296 } 5297 5298 matchdid.un.word = ndlp->nlp_DID; 5299 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5300 (mydid.un.b.area == ndlpdid.un.b.area)) { 5301 if ((matchdid.un.b.domain == 0) && 5302 (matchdid.un.b.area == 0)) { 5303 if (matchdid.un.b.id) 5304 return 1; 5305 } 5306 } 5307 } 5308 return 0; 5309 } 5310 5311 /* Search for a nodelist entry */ 5312 static struct lpfc_nodelist * 5313 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5314 { 5315 struct lpfc_nodelist *ndlp; 5316 uint32_t data1; 5317 5318 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5319 if (lpfc_matchdid(vport, ndlp, did)) { 5320 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5321 ((uint32_t)ndlp->nlp_xri << 16) | 5322 ((uint32_t)ndlp->nlp_type << 8) | 5323 ((uint32_t)ndlp->nlp_usg_map & 0xff)); 5324 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5325 "0929 FIND node DID " 5326 "Data: x%px x%x x%x x%x x%x x%px\n", 5327 ndlp, ndlp->nlp_DID, 5328 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5329 ndlp->active_rrqs_xri_bitmap); 5330 return ndlp; 5331 } 5332 } 5333 5334 /* FIND node did <did> NOT FOUND */ 5335 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5336 "0932 FIND node did x%x NOT FOUND.\n", did); 5337 return NULL; 5338 } 5339 5340 struct lpfc_nodelist * 5341 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5342 { 5343 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5344 struct lpfc_nodelist *ndlp; 5345 unsigned long iflags; 5346 5347 spin_lock_irqsave(shost->host_lock, iflags); 5348 ndlp = __lpfc_findnode_did(vport, did); 5349 spin_unlock_irqrestore(shost->host_lock, iflags); 5350 return ndlp; 5351 } 5352 5353 struct lpfc_nodelist * 5354 lpfc_findnode_mapped(struct lpfc_vport *vport) 5355 { 5356 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5357 struct lpfc_nodelist *ndlp; 5358 uint32_t data1; 5359 unsigned long iflags; 5360 5361 spin_lock_irqsave(shost->host_lock, iflags); 5362 5363 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5364 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5365 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5366 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5367 ((uint32_t)ndlp->nlp_xri << 16) | 5368 ((uint32_t)ndlp->nlp_type << 8) | 5369 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5370 spin_unlock_irqrestore(shost->host_lock, iflags); 5371 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5372 "2025 FIND node DID " 5373 "Data: x%px x%x x%x x%x x%px\n", 5374 ndlp, ndlp->nlp_DID, 5375 ndlp->nlp_flag, data1, 5376 ndlp->active_rrqs_xri_bitmap); 5377 return ndlp; 5378 } 5379 } 5380 spin_unlock_irqrestore(shost->host_lock, iflags); 5381 5382 /* FIND node did <did> NOT FOUND */ 5383 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5384 "2026 FIND mapped did NOT FOUND.\n"); 5385 return NULL; 5386 } 5387 5388 struct lpfc_nodelist * 5389 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5390 { 5391 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5392 struct lpfc_nodelist *ndlp; 5393 5394 ndlp = lpfc_findnode_did(vport, did); 5395 if (!ndlp) { 5396 if (vport->phba->nvmet_support) 5397 return NULL; 5398 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5399 lpfc_rscn_payload_check(vport, did) == 0) 5400 return NULL; 5401 ndlp = lpfc_nlp_init(vport, did); 5402 if (!ndlp) 5403 return NULL; 5404 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5405 5406 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5407 "6453 Setup New Node 2B_DISC x%x " 5408 "Data:x%x x%x x%x\n", 5409 ndlp->nlp_DID, ndlp->nlp_flag, 5410 ndlp->nlp_state, vport->fc_flag); 5411 5412 spin_lock_irq(shost->host_lock); 5413 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5414 spin_unlock_irq(shost->host_lock); 5415 return ndlp; 5416 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5417 if (vport->phba->nvmet_support) 5418 return NULL; 5419 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5420 if (!ndlp) { 5421 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 5422 "0014 Could not enable ndlp\n"); 5423 return NULL; 5424 } 5425 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5426 "6454 Setup Enabled Node 2B_DISC x%x " 5427 "Data:x%x x%x x%x\n", 5428 ndlp->nlp_DID, ndlp->nlp_flag, 5429 ndlp->nlp_state, vport->fc_flag); 5430 5431 spin_lock_irq(shost->host_lock); 5432 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5433 spin_unlock_irq(shost->host_lock); 5434 return ndlp; 5435 } 5436 5437 /* The NVME Target does not want to actively manage an rport. 5438 * The goal is to allow the target to reset its state and clear 5439 * pending IO in preparation for the initiator to recover. 5440 */ 5441 if ((vport->fc_flag & FC_RSCN_MODE) && 5442 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5443 if (lpfc_rscn_payload_check(vport, did)) { 5444 5445 /* Since this node is marked for discovery, 5446 * delay timeout is not needed. 5447 */ 5448 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5449 5450 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5451 "6455 Setup RSCN Node 2B_DISC x%x " 5452 "Data:x%x x%x x%x\n", 5453 ndlp->nlp_DID, ndlp->nlp_flag, 5454 ndlp->nlp_state, vport->fc_flag); 5455 5456 /* NVME Target mode waits until rport is known to be 5457 * impacted by the RSCN before it transitions. No 5458 * active management - just go to NPR provided the 5459 * node had a valid login. 5460 */ 5461 if (vport->phba->nvmet_support) 5462 return ndlp; 5463 5464 /* If we've already received a PLOGI from this NPort 5465 * we don't need to try to discover it again. 5466 */ 5467 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5468 !(ndlp->nlp_type & 5469 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5470 return NULL; 5471 5472 ndlp->nlp_prev_state = ndlp->nlp_state; 5473 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5474 5475 spin_lock_irq(shost->host_lock); 5476 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5477 spin_unlock_irq(shost->host_lock); 5478 } else { 5479 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5480 "6456 Skip Setup RSCN Node x%x " 5481 "Data:x%x x%x x%x\n", 5482 ndlp->nlp_DID, ndlp->nlp_flag, 5483 ndlp->nlp_state, vport->fc_flag); 5484 ndlp = NULL; 5485 } 5486 } else { 5487 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5488 "6457 Setup Active Node 2B_DISC x%x " 5489 "Data:x%x x%x x%x\n", 5490 ndlp->nlp_DID, ndlp->nlp_flag, 5491 ndlp->nlp_state, vport->fc_flag); 5492 5493 /* If the initiator received a PLOGI from this NPort or if the 5494 * initiator is already in the process of discovery on it, 5495 * there's no need to try to discover it again. 5496 */ 5497 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5498 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5499 (!vport->phba->nvmet_support && 5500 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5501 return NULL; 5502 5503 if (vport->phba->nvmet_support) 5504 return ndlp; 5505 5506 /* Moving to NPR state clears unsolicited flags and 5507 * allows for rediscovery 5508 */ 5509 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5510 5511 spin_lock_irq(shost->host_lock); 5512 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5513 spin_unlock_irq(shost->host_lock); 5514 } 5515 return ndlp; 5516 } 5517 5518 /* Build a list of nodes to discover based on the loopmap */ 5519 void 5520 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5521 { 5522 struct lpfc_hba *phba = vport->phba; 5523 int j; 5524 uint32_t alpa, index; 5525 5526 if (!lpfc_is_link_up(phba)) 5527 return; 5528 5529 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5530 return; 5531 5532 /* Check for loop map present or not */ 5533 if (phba->alpa_map[0]) { 5534 for (j = 1; j <= phba->alpa_map[0]; j++) { 5535 alpa = phba->alpa_map[j]; 5536 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5537 continue; 5538 lpfc_setup_disc_node(vport, alpa); 5539 } 5540 } else { 5541 /* No alpamap, so try all alpa's */ 5542 for (j = 0; j < FC_MAXLOOP; j++) { 5543 /* If cfg_scan_down is set, start from highest 5544 * ALPA (0xef) to lowest (0x1). 5545 */ 5546 if (vport->cfg_scan_down) 5547 index = j; 5548 else 5549 index = FC_MAXLOOP - j - 1; 5550 alpa = lpfcAlpaArray[index]; 5551 if ((vport->fc_myDID & 0xff) == alpa) 5552 continue; 5553 lpfc_setup_disc_node(vport, alpa); 5554 } 5555 } 5556 return; 5557 } 5558 5559 /* SLI3 only */ 5560 void 5561 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5562 { 5563 LPFC_MBOXQ_t *mbox; 5564 struct lpfc_sli *psli = &phba->sli; 5565 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5566 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5567 int rc; 5568 5569 /* 5570 * if it's not a physical port or if we already send 5571 * clear_la then don't send it. 5572 */ 5573 if ((phba->link_state >= LPFC_CLEAR_LA) || 5574 (vport->port_type != LPFC_PHYSICAL_PORT) || 5575 (phba->sli_rev == LPFC_SLI_REV4)) 5576 return; 5577 5578 /* Link up discovery */ 5579 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5580 phba->link_state = LPFC_CLEAR_LA; 5581 lpfc_clear_la(phba, mbox); 5582 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5583 mbox->vport = vport; 5584 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5585 if (rc == MBX_NOT_FINISHED) { 5586 mempool_free(mbox, phba->mbox_mem_pool); 5587 lpfc_disc_flush_list(vport); 5588 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5589 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5590 phba->link_state = LPFC_HBA_ERROR; 5591 } 5592 } 5593 } 5594 5595 /* Reg_vpi to tell firmware to resume normal operations */ 5596 void 5597 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5598 { 5599 LPFC_MBOXQ_t *regvpimbox; 5600 5601 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5602 if (regvpimbox) { 5603 lpfc_reg_vpi(vport, regvpimbox); 5604 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5605 regvpimbox->vport = vport; 5606 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5607 == MBX_NOT_FINISHED) { 5608 mempool_free(regvpimbox, phba->mbox_mem_pool); 5609 } 5610 } 5611 } 5612 5613 /* Start Link up / RSCN discovery on NPR nodes */ 5614 void 5615 lpfc_disc_start(struct lpfc_vport *vport) 5616 { 5617 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5618 struct lpfc_hba *phba = vport->phba; 5619 uint32_t num_sent; 5620 uint32_t clear_la_pending; 5621 5622 if (!lpfc_is_link_up(phba)) { 5623 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5624 "3315 Link is not up %x\n", 5625 phba->link_state); 5626 return; 5627 } 5628 5629 if (phba->link_state == LPFC_CLEAR_LA) 5630 clear_la_pending = 1; 5631 else 5632 clear_la_pending = 0; 5633 5634 if (vport->port_state < LPFC_VPORT_READY) 5635 vport->port_state = LPFC_DISC_AUTH; 5636 5637 lpfc_set_disctmo(vport); 5638 5639 vport->fc_prevDID = vport->fc_myDID; 5640 vport->num_disc_nodes = 0; 5641 5642 /* Start Discovery state <hba_state> */ 5643 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5644 "0202 Start Discovery port state x%x " 5645 "flg x%x Data: x%x x%x x%x\n", 5646 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5647 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5648 5649 /* First do ADISCs - if any */ 5650 num_sent = lpfc_els_disc_adisc(vport); 5651 5652 if (num_sent) 5653 return; 5654 5655 /* Register the VPI for SLI3, NPIV only. */ 5656 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5657 !(vport->fc_flag & FC_PT2PT) && 5658 !(vport->fc_flag & FC_RSCN_MODE) && 5659 (phba->sli_rev < LPFC_SLI_REV4)) { 5660 lpfc_issue_clear_la(phba, vport); 5661 lpfc_issue_reg_vpi(phba, vport); 5662 return; 5663 } 5664 5665 /* 5666 * For SLI2, we need to set port_state to READY and continue 5667 * discovery. 5668 */ 5669 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5670 /* If we get here, there is nothing to ADISC */ 5671 lpfc_issue_clear_la(phba, vport); 5672 5673 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5674 vport->num_disc_nodes = 0; 5675 /* go thru NPR nodes and issue ELS PLOGIs */ 5676 if (vport->fc_npr_cnt) 5677 lpfc_els_disc_plogi(vport); 5678 5679 if (!vport->num_disc_nodes) { 5680 spin_lock_irq(shost->host_lock); 5681 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5682 spin_unlock_irq(shost->host_lock); 5683 lpfc_can_disctmo(vport); 5684 } 5685 } 5686 vport->port_state = LPFC_VPORT_READY; 5687 } else { 5688 /* Next do PLOGIs - if any */ 5689 num_sent = lpfc_els_disc_plogi(vport); 5690 5691 if (num_sent) 5692 return; 5693 5694 if (vport->fc_flag & FC_RSCN_MODE) { 5695 /* Check to see if more RSCNs came in while we 5696 * were processing this one. 5697 */ 5698 if ((vport->fc_rscn_id_cnt == 0) && 5699 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5700 spin_lock_irq(shost->host_lock); 5701 vport->fc_flag &= ~FC_RSCN_MODE; 5702 spin_unlock_irq(shost->host_lock); 5703 lpfc_can_disctmo(vport); 5704 } else 5705 lpfc_els_handle_rscn(vport); 5706 } 5707 } 5708 return; 5709 } 5710 5711 /* 5712 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5713 * ring the match the sppecified nodelist. 5714 */ 5715 static void 5716 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5717 { 5718 LIST_HEAD(completions); 5719 IOCB_t *icmd; 5720 struct lpfc_iocbq *iocb, *next_iocb; 5721 struct lpfc_sli_ring *pring; 5722 5723 pring = lpfc_phba_elsring(phba); 5724 if (unlikely(!pring)) 5725 return; 5726 5727 /* Error matching iocb on txq or txcmplq 5728 * First check the txq. 5729 */ 5730 spin_lock_irq(&phba->hbalock); 5731 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5732 if (iocb->context1 != ndlp) { 5733 continue; 5734 } 5735 icmd = &iocb->iocb; 5736 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5737 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5738 5739 list_move_tail(&iocb->list, &completions); 5740 } 5741 } 5742 5743 /* Next check the txcmplq */ 5744 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5745 if (iocb->context1 != ndlp) { 5746 continue; 5747 } 5748 icmd = &iocb->iocb; 5749 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5750 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5751 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5752 } 5753 } 5754 spin_unlock_irq(&phba->hbalock); 5755 5756 /* Cancel all the IOCBs from the completions list */ 5757 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5758 IOERR_SLI_ABORTED); 5759 } 5760 5761 static void 5762 lpfc_disc_flush_list(struct lpfc_vport *vport) 5763 { 5764 struct lpfc_nodelist *ndlp, *next_ndlp; 5765 struct lpfc_hba *phba = vport->phba; 5766 5767 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5768 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5769 nlp_listp) { 5770 if (!NLP_CHK_NODE_ACT(ndlp)) 5771 continue; 5772 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5773 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5774 lpfc_free_tx(phba, ndlp); 5775 } 5776 } 5777 } 5778 } 5779 5780 void 5781 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5782 { 5783 lpfc_els_flush_rscn(vport); 5784 lpfc_els_flush_cmd(vport); 5785 lpfc_disc_flush_list(vport); 5786 } 5787 5788 /*****************************************************************************/ 5789 /* 5790 * NAME: lpfc_disc_timeout 5791 * 5792 * FUNCTION: Fibre Channel driver discovery timeout routine. 5793 * 5794 * EXECUTION ENVIRONMENT: interrupt only 5795 * 5796 * CALLED FROM: 5797 * Timer function 5798 * 5799 * RETURNS: 5800 * none 5801 */ 5802 /*****************************************************************************/ 5803 void 5804 lpfc_disc_timeout(struct timer_list *t) 5805 { 5806 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5807 struct lpfc_hba *phba = vport->phba; 5808 uint32_t tmo_posted; 5809 unsigned long flags = 0; 5810 5811 if (unlikely(!phba)) 5812 return; 5813 5814 spin_lock_irqsave(&vport->work_port_lock, flags); 5815 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5816 if (!tmo_posted) 5817 vport->work_port_events |= WORKER_DISC_TMO; 5818 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5819 5820 if (!tmo_posted) 5821 lpfc_worker_wake_up(phba); 5822 return; 5823 } 5824 5825 static void 5826 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5827 { 5828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5829 struct lpfc_hba *phba = vport->phba; 5830 struct lpfc_sli *psli = &phba->sli; 5831 struct lpfc_nodelist *ndlp, *next_ndlp; 5832 LPFC_MBOXQ_t *initlinkmbox; 5833 int rc, clrlaerr = 0; 5834 5835 if (!(vport->fc_flag & FC_DISC_TMO)) 5836 return; 5837 5838 spin_lock_irq(shost->host_lock); 5839 vport->fc_flag &= ~FC_DISC_TMO; 5840 spin_unlock_irq(shost->host_lock); 5841 5842 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5843 "disc timeout: state:x%x rtry:x%x flg:x%x", 5844 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5845 5846 switch (vport->port_state) { 5847 5848 case LPFC_LOCAL_CFG_LINK: 5849 /* 5850 * port_state is identically LPFC_LOCAL_CFG_LINK while 5851 * waiting for FAN timeout 5852 */ 5853 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5854 "0221 FAN timeout\n"); 5855 5856 /* Start discovery by sending FLOGI, clean up old rpis */ 5857 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5858 nlp_listp) { 5859 if (!NLP_CHK_NODE_ACT(ndlp)) 5860 continue; 5861 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5862 continue; 5863 if (ndlp->nlp_type & NLP_FABRIC) { 5864 /* Clean up the ndlp on Fabric connections */ 5865 lpfc_drop_node(vport, ndlp); 5866 5867 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5868 /* Fail outstanding IO now since device 5869 * is marked for PLOGI. 5870 */ 5871 lpfc_unreg_rpi(vport, ndlp); 5872 } 5873 } 5874 if (vport->port_state != LPFC_FLOGI) { 5875 if (phba->sli_rev <= LPFC_SLI_REV3) 5876 lpfc_initial_flogi(vport); 5877 else 5878 lpfc_issue_init_vfi(vport); 5879 return; 5880 } 5881 break; 5882 5883 case LPFC_FDISC: 5884 case LPFC_FLOGI: 5885 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5886 /* Initial FLOGI timeout */ 5887 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5888 "0222 Initial %s timeout\n", 5889 vport->vpi ? "FDISC" : "FLOGI"); 5890 5891 /* Assume no Fabric and go on with discovery. 5892 * Check for outstanding ELS FLOGI to abort. 5893 */ 5894 5895 /* FLOGI failed, so just use loop map to make discovery list */ 5896 lpfc_disc_list_loopmap(vport); 5897 5898 /* Start discovery */ 5899 lpfc_disc_start(vport); 5900 break; 5901 5902 case LPFC_FABRIC_CFG_LINK: 5903 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5904 NameServer login */ 5905 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5906 "0223 Timeout while waiting for " 5907 "NameServer login\n"); 5908 /* Next look for NameServer ndlp */ 5909 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5910 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5911 lpfc_els_abort(phba, ndlp); 5912 5913 /* ReStart discovery */ 5914 goto restart_disc; 5915 5916 case LPFC_NS_QRY: 5917 /* Check for wait for NameServer Rsp timeout */ 5918 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5919 "0224 NameServer Query timeout " 5920 "Data: x%x x%x\n", 5921 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5922 5923 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5924 /* Try it one more time */ 5925 vport->fc_ns_retry++; 5926 vport->gidft_inp = 0; 5927 rc = lpfc_issue_gidft(vport); 5928 if (rc == 0) 5929 break; 5930 } 5931 vport->fc_ns_retry = 0; 5932 5933 restart_disc: 5934 /* 5935 * Discovery is over. 5936 * set port_state to PORT_READY if SLI2. 5937 * cmpl_reg_vpi will set port_state to READY for SLI3. 5938 */ 5939 if (phba->sli_rev < LPFC_SLI_REV4) { 5940 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5941 lpfc_issue_reg_vpi(phba, vport); 5942 else { 5943 lpfc_issue_clear_la(phba, vport); 5944 vport->port_state = LPFC_VPORT_READY; 5945 } 5946 } 5947 5948 /* Setup and issue mailbox INITIALIZE LINK command */ 5949 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5950 if (!initlinkmbox) { 5951 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5952 "0206 Device Discovery " 5953 "completion error\n"); 5954 phba->link_state = LPFC_HBA_ERROR; 5955 break; 5956 } 5957 5958 lpfc_linkdown(phba); 5959 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5960 phba->cfg_link_speed); 5961 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5962 initlinkmbox->vport = vport; 5963 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5964 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5965 lpfc_set_loopback_flag(phba); 5966 if (rc == MBX_NOT_FINISHED) 5967 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5968 5969 break; 5970 5971 case LPFC_DISC_AUTH: 5972 /* Node Authentication timeout */ 5973 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5974 "0227 Node Authentication timeout\n"); 5975 lpfc_disc_flush_list(vport); 5976 5977 /* 5978 * set port_state to PORT_READY if SLI2. 5979 * cmpl_reg_vpi will set port_state to READY for SLI3. 5980 */ 5981 if (phba->sli_rev < LPFC_SLI_REV4) { 5982 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5983 lpfc_issue_reg_vpi(phba, vport); 5984 else { /* NPIV Not enabled */ 5985 lpfc_issue_clear_la(phba, vport); 5986 vport->port_state = LPFC_VPORT_READY; 5987 } 5988 } 5989 break; 5990 5991 case LPFC_VPORT_READY: 5992 if (vport->fc_flag & FC_RSCN_MODE) { 5993 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5994 "0231 RSCN timeout Data: x%x " 5995 "x%x\n", 5996 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5997 5998 /* Cleanup any outstanding ELS commands */ 5999 lpfc_els_flush_cmd(vport); 6000 6001 lpfc_els_flush_rscn(vport); 6002 lpfc_disc_flush_list(vport); 6003 } 6004 break; 6005 6006 default: 6007 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6008 "0273 Unexpected discovery timeout, " 6009 "vport State x%x\n", vport->port_state); 6010 break; 6011 } 6012 6013 switch (phba->link_state) { 6014 case LPFC_CLEAR_LA: 6015 /* CLEAR LA timeout */ 6016 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6017 "0228 CLEAR LA timeout\n"); 6018 clrlaerr = 1; 6019 break; 6020 6021 case LPFC_LINK_UP: 6022 lpfc_issue_clear_la(phba, vport); 6023 /* fall through */ 6024 case LPFC_LINK_UNKNOWN: 6025 case LPFC_WARM_START: 6026 case LPFC_INIT_START: 6027 case LPFC_INIT_MBX_CMDS: 6028 case LPFC_LINK_DOWN: 6029 case LPFC_HBA_ERROR: 6030 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6031 "0230 Unexpected timeout, hba link " 6032 "state x%x\n", phba->link_state); 6033 clrlaerr = 1; 6034 break; 6035 6036 case LPFC_HBA_READY: 6037 break; 6038 } 6039 6040 if (clrlaerr) { 6041 lpfc_disc_flush_list(vport); 6042 if (phba->sli_rev != LPFC_SLI_REV4) { 6043 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6044 ~LPFC_STOP_IOCB_EVENT; 6045 psli->sli3_ring[LPFC_FCP_RING].flag &= 6046 ~LPFC_STOP_IOCB_EVENT; 6047 } 6048 vport->port_state = LPFC_VPORT_READY; 6049 } 6050 return; 6051 } 6052 6053 /* 6054 * This routine handles processing a NameServer REG_LOGIN mailbox 6055 * command upon completion. It is setup in the LPFC_MBOXQ 6056 * as the completion routine when the command is 6057 * handed off to the SLI layer. 6058 */ 6059 void 6060 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6061 { 6062 MAILBOX_t *mb = &pmb->u.mb; 6063 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 6064 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6065 struct lpfc_vport *vport = pmb->vport; 6066 6067 pmb->ctx_buf = NULL; 6068 pmb->ctx_ndlp = NULL; 6069 6070 if (phba->sli_rev < LPFC_SLI_REV4) 6071 ndlp->nlp_rpi = mb->un.varWords[0]; 6072 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6073 ndlp->nlp_type |= NLP_FABRIC; 6074 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6075 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6076 "0004 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 6077 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6078 kref_read(&ndlp->kref), 6079 ndlp->nlp_usg_map, ndlp); 6080 /* 6081 * Start issuing Fabric-Device Management Interface (FDMI) command to 6082 * 0xfffffa (FDMI well known port). 6083 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6084 * DPRT -> RPRT (vports) 6085 */ 6086 if (vport->port_type == LPFC_PHYSICAL_PORT) 6087 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6088 else 6089 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6090 6091 6092 /* decrement the node reference count held for this callback 6093 * function. 6094 */ 6095 lpfc_nlp_put(ndlp); 6096 lpfc_mbuf_free(phba, mp->virt, mp->phys); 6097 kfree(mp); 6098 mempool_free(pmb, phba->mbox_mem_pool); 6099 6100 return; 6101 } 6102 6103 static int 6104 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6105 { 6106 uint16_t *rpi = param; 6107 6108 /* check for active node */ 6109 if (!NLP_CHK_NODE_ACT(ndlp)) 6110 return 0; 6111 6112 return ndlp->nlp_rpi == *rpi; 6113 } 6114 6115 static int 6116 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6117 { 6118 return memcmp(&ndlp->nlp_portname, param, 6119 sizeof(ndlp->nlp_portname)) == 0; 6120 } 6121 6122 static struct lpfc_nodelist * 6123 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6124 { 6125 struct lpfc_nodelist *ndlp; 6126 6127 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6128 if (filter(ndlp, param)) { 6129 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6130 "3185 FIND node filter %ps DID " 6131 "ndlp x%px did x%x flg x%x st x%x " 6132 "xri x%x type x%x rpi x%x\n", 6133 filter, ndlp, ndlp->nlp_DID, 6134 ndlp->nlp_flag, ndlp->nlp_state, 6135 ndlp->nlp_xri, ndlp->nlp_type, 6136 ndlp->nlp_rpi); 6137 return ndlp; 6138 } 6139 } 6140 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6141 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6142 return NULL; 6143 } 6144 6145 /* 6146 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6147 * returns the node list element pointer else return NULL. 6148 */ 6149 struct lpfc_nodelist * 6150 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6151 { 6152 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6153 } 6154 6155 /* 6156 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6157 * returns the node element list pointer else return NULL. 6158 */ 6159 struct lpfc_nodelist * 6160 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6161 { 6162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6163 struct lpfc_nodelist *ndlp; 6164 6165 spin_lock_irq(shost->host_lock); 6166 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6167 spin_unlock_irq(shost->host_lock); 6168 return ndlp; 6169 } 6170 6171 /* 6172 * This routine looks up the ndlp lists for the given RPI. If the rpi 6173 * is found, the routine returns the node element list pointer else 6174 * return NULL. 6175 */ 6176 struct lpfc_nodelist * 6177 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6178 { 6179 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6180 struct lpfc_nodelist *ndlp; 6181 unsigned long flags; 6182 6183 spin_lock_irqsave(shost->host_lock, flags); 6184 ndlp = __lpfc_findnode_rpi(vport, rpi); 6185 spin_unlock_irqrestore(shost->host_lock, flags); 6186 return ndlp; 6187 } 6188 6189 /** 6190 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6191 * @phba: pointer to lpfc hba data structure. 6192 * @vpi: the physical host virtual N_Port identifier. 6193 * 6194 * This routine finds a vport on a HBA (referred by @phba) through a 6195 * @vpi. The function walks the HBA's vport list and returns the address 6196 * of the vport with the matching @vpi. 6197 * 6198 * Return code 6199 * NULL - No vport with the matching @vpi found 6200 * Otherwise - Address to the vport with the matching @vpi. 6201 **/ 6202 struct lpfc_vport * 6203 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6204 { 6205 struct lpfc_vport *vport; 6206 unsigned long flags; 6207 int i = 0; 6208 6209 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6210 if (vpi > 0) { 6211 /* 6212 * Translate the physical vpi to the logical vpi. The 6213 * vport stores the logical vpi. 6214 */ 6215 for (i = 0; i < phba->max_vpi; i++) { 6216 if (vpi == phba->vpi_ids[i]) 6217 break; 6218 } 6219 6220 if (i >= phba->max_vpi) { 6221 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 6222 "2936 Could not find Vport mapped " 6223 "to vpi %d\n", vpi); 6224 return NULL; 6225 } 6226 } 6227 6228 spin_lock_irqsave(&phba->port_list_lock, flags); 6229 list_for_each_entry(vport, &phba->port_list, listentry) { 6230 if (vport->vpi == i) { 6231 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6232 return vport; 6233 } 6234 } 6235 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6236 return NULL; 6237 } 6238 6239 struct lpfc_nodelist * 6240 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6241 { 6242 struct lpfc_nodelist *ndlp; 6243 int rpi = LPFC_RPI_ALLOC_ERROR; 6244 6245 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6246 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6247 if (rpi == LPFC_RPI_ALLOC_ERROR) 6248 return NULL; 6249 } 6250 6251 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6252 if (!ndlp) { 6253 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6254 lpfc_sli4_free_rpi(vport->phba, rpi); 6255 return NULL; 6256 } 6257 6258 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6259 6260 lpfc_initialize_node(vport, ndlp, did); 6261 INIT_LIST_HEAD(&ndlp->nlp_listp); 6262 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6263 ndlp->nlp_rpi = rpi; 6264 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6265 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6266 "flg:x%x refcnt:%d map:x%x\n", 6267 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6268 ndlp->nlp_flag, kref_read(&ndlp->kref), 6269 ndlp->nlp_usg_map); 6270 6271 ndlp->active_rrqs_xri_bitmap = 6272 mempool_alloc(vport->phba->active_rrq_pool, 6273 GFP_KERNEL); 6274 if (ndlp->active_rrqs_xri_bitmap) 6275 memset(ndlp->active_rrqs_xri_bitmap, 0, 6276 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6277 } 6278 6279 6280 6281 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6282 "node init: did:x%x", 6283 ndlp->nlp_DID, 0, 0); 6284 6285 return ndlp; 6286 } 6287 6288 /* This routine releases all resources associated with a specifc NPort's ndlp 6289 * and mempool_free's the nodelist. 6290 */ 6291 static void 6292 lpfc_nlp_release(struct kref *kref) 6293 { 6294 struct lpfc_hba *phba; 6295 unsigned long flags; 6296 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6297 kref); 6298 6299 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6300 "node release: did:x%x flg:x%x type:x%x", 6301 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6302 6303 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6304 "0279 %s: ndlp:x%px did %x " 6305 "usgmap:x%x refcnt:%d rpi:%x\n", 6306 __func__, 6307 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6308 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6309 6310 /* remove ndlp from action. */ 6311 lpfc_nlp_remove(ndlp->vport, ndlp); 6312 6313 /* clear the ndlp active flag for all release cases */ 6314 phba = ndlp->phba; 6315 spin_lock_irqsave(&phba->ndlp_lock, flags); 6316 NLP_CLR_NODE_ACT(ndlp); 6317 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6318 6319 /* free ndlp memory for final ndlp release */ 6320 if (NLP_CHK_FREE_REQ(ndlp)) { 6321 kfree(ndlp->lat_data); 6322 if (phba->sli_rev == LPFC_SLI_REV4) 6323 mempool_free(ndlp->active_rrqs_xri_bitmap, 6324 ndlp->phba->active_rrq_pool); 6325 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6326 } 6327 } 6328 6329 /* This routine bumps the reference count for a ndlp structure to ensure 6330 * that one discovery thread won't free a ndlp while another discovery thread 6331 * is using it. 6332 */ 6333 struct lpfc_nodelist * 6334 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6335 { 6336 struct lpfc_hba *phba; 6337 unsigned long flags; 6338 6339 if (ndlp) { 6340 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6341 "node get: did:x%x flg:x%x refcnt:x%x", 6342 ndlp->nlp_DID, ndlp->nlp_flag, 6343 kref_read(&ndlp->kref)); 6344 /* The check of ndlp usage to prevent incrementing the 6345 * ndlp reference count that is in the process of being 6346 * released. 6347 */ 6348 phba = ndlp->phba; 6349 spin_lock_irqsave(&phba->ndlp_lock, flags); 6350 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6351 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6352 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6353 "0276 %s: ndlp:x%px " 6354 "usgmap:x%x refcnt:%d\n", 6355 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6356 kref_read(&ndlp->kref)); 6357 return NULL; 6358 } else 6359 kref_get(&ndlp->kref); 6360 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6361 } 6362 return ndlp; 6363 } 6364 6365 /* This routine decrements the reference count for a ndlp structure. If the 6366 * count goes to 0, this indicates the the associated nodelist should be 6367 * freed. Returning 1 indicates the ndlp resource has been released; on the 6368 * other hand, returning 0 indicates the ndlp resource has not been released 6369 * yet. 6370 */ 6371 int 6372 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6373 { 6374 struct lpfc_hba *phba; 6375 unsigned long flags; 6376 6377 if (!ndlp) 6378 return 1; 6379 6380 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6381 "node put: did:x%x flg:x%x refcnt:x%x", 6382 ndlp->nlp_DID, ndlp->nlp_flag, 6383 kref_read(&ndlp->kref)); 6384 phba = ndlp->phba; 6385 spin_lock_irqsave(&phba->ndlp_lock, flags); 6386 /* Check the ndlp memory free acknowledge flag to avoid the 6387 * possible race condition that kref_put got invoked again 6388 * after previous one has done ndlp memory free. 6389 */ 6390 if (NLP_CHK_FREE_ACK(ndlp)) { 6391 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6392 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6393 "0274 %s: ndlp:x%px " 6394 "usgmap:x%x refcnt:%d\n", 6395 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6396 kref_read(&ndlp->kref)); 6397 return 1; 6398 } 6399 /* Check the ndlp inactivate log flag to avoid the possible 6400 * race condition that kref_put got invoked again after ndlp 6401 * is already in inactivating state. 6402 */ 6403 if (NLP_CHK_IACT_REQ(ndlp)) { 6404 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6405 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6406 "0275 %s: ndlp:x%px " 6407 "usgmap:x%x refcnt:%d\n", 6408 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6409 kref_read(&ndlp->kref)); 6410 return 1; 6411 } 6412 /* For last put, mark the ndlp usage flags to make sure no 6413 * other kref_get and kref_put on the same ndlp shall get 6414 * in between the process when the final kref_put has been 6415 * invoked on this ndlp. 6416 */ 6417 if (kref_read(&ndlp->kref) == 1) { 6418 /* Indicate ndlp is put to inactive state. */ 6419 NLP_SET_IACT_REQ(ndlp); 6420 /* Acknowledge ndlp memory free has been seen. */ 6421 if (NLP_CHK_FREE_REQ(ndlp)) 6422 NLP_SET_FREE_ACK(ndlp); 6423 } 6424 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6425 /* Note, the kref_put returns 1 when decrementing a reference 6426 * count that was 1, it invokes the release callback function, 6427 * but it still left the reference count as 1 (not actually 6428 * performs the last decrementation). Otherwise, it actually 6429 * decrements the reference count and returns 0. 6430 */ 6431 return kref_put(&ndlp->kref, lpfc_nlp_release); 6432 } 6433 6434 /* This routine free's the specified nodelist if it is not in use 6435 * by any other discovery thread. This routine returns 1 if the 6436 * ndlp has been freed. A return value of 0 indicates the ndlp is 6437 * not yet been released. 6438 */ 6439 int 6440 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6441 { 6442 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6443 "node not used: did:x%x flg:x%x refcnt:x%x", 6444 ndlp->nlp_DID, ndlp->nlp_flag, 6445 kref_read(&ndlp->kref)); 6446 if (kref_read(&ndlp->kref) == 1) 6447 if (lpfc_nlp_put(ndlp)) 6448 return 1; 6449 return 0; 6450 } 6451 6452 /** 6453 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6454 * @phba: Pointer to hba context object. 6455 * 6456 * This function iterate through all FC nodes associated 6457 * will all vports to check if there is any node with 6458 * fc_rports associated with it. If there is an fc_rport 6459 * associated with the node, then the node is either in 6460 * discovered state or its devloss_timer is pending. 6461 */ 6462 static int 6463 lpfc_fcf_inuse(struct lpfc_hba *phba) 6464 { 6465 struct lpfc_vport **vports; 6466 int i, ret = 0; 6467 struct lpfc_nodelist *ndlp; 6468 struct Scsi_Host *shost; 6469 6470 vports = lpfc_create_vport_work_array(phba); 6471 6472 /* If driver cannot allocate memory, indicate fcf is in use */ 6473 if (!vports) 6474 return 1; 6475 6476 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6477 shost = lpfc_shost_from_vport(vports[i]); 6478 spin_lock_irq(shost->host_lock); 6479 /* 6480 * IF the CVL_RCVD bit is not set then we have sent the 6481 * flogi. 6482 * If dev_loss fires while we are waiting we do not want to 6483 * unreg the fcf. 6484 */ 6485 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6486 spin_unlock_irq(shost->host_lock); 6487 ret = 1; 6488 goto out; 6489 } 6490 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6491 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6492 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6493 ret = 1; 6494 spin_unlock_irq(shost->host_lock); 6495 goto out; 6496 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6497 ret = 1; 6498 lpfc_printf_log(phba, KERN_INFO, 6499 LOG_NODE | LOG_DISCOVERY, 6500 "2624 RPI %x DID %x flag %x " 6501 "still logged in\n", 6502 ndlp->nlp_rpi, ndlp->nlp_DID, 6503 ndlp->nlp_flag); 6504 } 6505 } 6506 spin_unlock_irq(shost->host_lock); 6507 } 6508 out: 6509 lpfc_destroy_vport_work_array(phba, vports); 6510 return ret; 6511 } 6512 6513 /** 6514 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6515 * @phba: Pointer to hba context object. 6516 * @mboxq: Pointer to mailbox object. 6517 * 6518 * This function frees memory associated with the mailbox command. 6519 */ 6520 void 6521 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6522 { 6523 struct lpfc_vport *vport = mboxq->vport; 6524 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6525 6526 if (mboxq->u.mb.mbxStatus) { 6527 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6528 "2555 UNREG_VFI mbxStatus error x%x " 6529 "HBA state x%x\n", 6530 mboxq->u.mb.mbxStatus, vport->port_state); 6531 } 6532 spin_lock_irq(shost->host_lock); 6533 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6534 spin_unlock_irq(shost->host_lock); 6535 mempool_free(mboxq, phba->mbox_mem_pool); 6536 return; 6537 } 6538 6539 /** 6540 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6541 * @phba: Pointer to hba context object. 6542 * @mboxq: Pointer to mailbox object. 6543 * 6544 * This function frees memory associated with the mailbox command. 6545 */ 6546 static void 6547 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6548 { 6549 struct lpfc_vport *vport = mboxq->vport; 6550 6551 if (mboxq->u.mb.mbxStatus) { 6552 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6553 "2550 UNREG_FCFI mbxStatus error x%x " 6554 "HBA state x%x\n", 6555 mboxq->u.mb.mbxStatus, vport->port_state); 6556 } 6557 mempool_free(mboxq, phba->mbox_mem_pool); 6558 return; 6559 } 6560 6561 /** 6562 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6563 * @phba: Pointer to hba context object. 6564 * 6565 * This function prepare the HBA for unregistering the currently registered 6566 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6567 * VFIs. 6568 */ 6569 int 6570 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6571 { 6572 struct lpfc_vport **vports; 6573 struct lpfc_nodelist *ndlp; 6574 struct Scsi_Host *shost; 6575 int i = 0, rc; 6576 6577 /* Unregister RPIs */ 6578 if (lpfc_fcf_inuse(phba)) 6579 lpfc_unreg_hba_rpis(phba); 6580 6581 /* At this point, all discovery is aborted */ 6582 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6583 6584 /* Unregister VPIs */ 6585 vports = lpfc_create_vport_work_array(phba); 6586 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6587 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6588 /* Stop FLOGI/FDISC retries */ 6589 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6590 if (ndlp) 6591 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6592 lpfc_cleanup_pending_mbox(vports[i]); 6593 if (phba->sli_rev == LPFC_SLI_REV4) 6594 lpfc_sli4_unreg_all_rpis(vports[i]); 6595 lpfc_mbx_unreg_vpi(vports[i]); 6596 shost = lpfc_shost_from_vport(vports[i]); 6597 spin_lock_irq(shost->host_lock); 6598 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6599 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6600 spin_unlock_irq(shost->host_lock); 6601 } 6602 lpfc_destroy_vport_work_array(phba, vports); 6603 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6604 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6605 if (ndlp) 6606 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6607 lpfc_cleanup_pending_mbox(phba->pport); 6608 if (phba->sli_rev == LPFC_SLI_REV4) 6609 lpfc_sli4_unreg_all_rpis(phba->pport); 6610 lpfc_mbx_unreg_vpi(phba->pport); 6611 shost = lpfc_shost_from_vport(phba->pport); 6612 spin_lock_irq(shost->host_lock); 6613 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6614 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6615 spin_unlock_irq(shost->host_lock); 6616 } 6617 6618 /* Cleanup any outstanding ELS commands */ 6619 lpfc_els_flush_all_cmd(phba); 6620 6621 /* Unregister the physical port VFI */ 6622 rc = lpfc_issue_unreg_vfi(phba->pport); 6623 return rc; 6624 } 6625 6626 /** 6627 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6628 * @phba: Pointer to hba context object. 6629 * 6630 * This function issues synchronous unregister FCF mailbox command to HBA to 6631 * unregister the currently registered FCF record. The driver does not reset 6632 * the driver FCF usage state flags. 6633 * 6634 * Return 0 if successfully issued, none-zero otherwise. 6635 */ 6636 int 6637 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6638 { 6639 LPFC_MBOXQ_t *mbox; 6640 int rc; 6641 6642 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6643 if (!mbox) { 6644 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6645 "2551 UNREG_FCFI mbox allocation failed" 6646 "HBA state x%x\n", phba->pport->port_state); 6647 return -ENOMEM; 6648 } 6649 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6650 mbox->vport = phba->pport; 6651 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6652 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6653 6654 if (rc == MBX_NOT_FINISHED) { 6655 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6656 "2552 Unregister FCFI command failed rc x%x " 6657 "HBA state x%x\n", 6658 rc, phba->pport->port_state); 6659 return -EINVAL; 6660 } 6661 return 0; 6662 } 6663 6664 /** 6665 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6666 * @phba: Pointer to hba context object. 6667 * 6668 * This function unregisters the currently reigstered FCF. This function 6669 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6670 */ 6671 void 6672 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6673 { 6674 int rc; 6675 6676 /* Preparation for unregistering fcf */ 6677 rc = lpfc_unregister_fcf_prep(phba); 6678 if (rc) { 6679 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6680 "2748 Failed to prepare for unregistering " 6681 "HBA's FCF record: rc=%d\n", rc); 6682 return; 6683 } 6684 6685 /* Now, unregister FCF record and reset HBA FCF state */ 6686 rc = lpfc_sli4_unregister_fcf(phba); 6687 if (rc) 6688 return; 6689 /* Reset HBA FCF states after successful unregister FCF */ 6690 phba->fcf.fcf_flag = 0; 6691 phba->fcf.current_rec.flag = 0; 6692 6693 /* 6694 * If driver is not unloading, check if there is any other 6695 * FCF record that can be used for discovery. 6696 */ 6697 if ((phba->pport->load_flag & FC_UNLOADING) || 6698 (phba->link_state < LPFC_LINK_UP)) 6699 return; 6700 6701 /* This is considered as the initial FCF discovery scan */ 6702 spin_lock_irq(&phba->hbalock); 6703 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6704 spin_unlock_irq(&phba->hbalock); 6705 6706 /* Reset FCF roundrobin bmask for new discovery */ 6707 lpfc_sli4_clear_fcf_rr_bmask(phba); 6708 6709 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6710 6711 if (rc) { 6712 spin_lock_irq(&phba->hbalock); 6713 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6714 spin_unlock_irq(&phba->hbalock); 6715 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6716 "2553 lpfc_unregister_unused_fcf failed " 6717 "to read FCF record HBA state x%x\n", 6718 phba->pport->port_state); 6719 } 6720 } 6721 6722 /** 6723 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6724 * @phba: Pointer to hba context object. 6725 * 6726 * This function just unregisters the currently reigstered FCF. It does not 6727 * try to find another FCF for discovery. 6728 */ 6729 void 6730 lpfc_unregister_fcf(struct lpfc_hba *phba) 6731 { 6732 int rc; 6733 6734 /* Preparation for unregistering fcf */ 6735 rc = lpfc_unregister_fcf_prep(phba); 6736 if (rc) { 6737 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6738 "2749 Failed to prepare for unregistering " 6739 "HBA's FCF record: rc=%d\n", rc); 6740 return; 6741 } 6742 6743 /* Now, unregister FCF record and reset HBA FCF state */ 6744 rc = lpfc_sli4_unregister_fcf(phba); 6745 if (rc) 6746 return; 6747 /* Set proper HBA FCF states after successful unregister FCF */ 6748 spin_lock_irq(&phba->hbalock); 6749 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6750 spin_unlock_irq(&phba->hbalock); 6751 } 6752 6753 /** 6754 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6755 * @phba: Pointer to hba context object. 6756 * 6757 * This function check if there are any connected remote port for the FCF and 6758 * if all the devices are disconnected, this function unregister FCFI. 6759 * This function also tries to use another FCF for discovery. 6760 */ 6761 void 6762 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6763 { 6764 /* 6765 * If HBA is not running in FIP mode, if HBA does not support 6766 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6767 * registered, do nothing. 6768 */ 6769 spin_lock_irq(&phba->hbalock); 6770 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6771 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6772 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6773 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6774 (phba->pport->port_state == LPFC_FLOGI)) { 6775 spin_unlock_irq(&phba->hbalock); 6776 return; 6777 } 6778 spin_unlock_irq(&phba->hbalock); 6779 6780 if (lpfc_fcf_inuse(phba)) 6781 return; 6782 6783 lpfc_unregister_fcf_rescan(phba); 6784 } 6785 6786 /** 6787 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6788 * @phba: Pointer to hba context object. 6789 * @buff: Buffer containing the FCF connection table as in the config 6790 * region. 6791 * This function create driver data structure for the FCF connection 6792 * record table read from config region 23. 6793 */ 6794 static void 6795 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6796 uint8_t *buff) 6797 { 6798 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6799 struct lpfc_fcf_conn_hdr *conn_hdr; 6800 struct lpfc_fcf_conn_rec *conn_rec; 6801 uint32_t record_count; 6802 int i; 6803 6804 /* Free the current connect table */ 6805 list_for_each_entry_safe(conn_entry, next_conn_entry, 6806 &phba->fcf_conn_rec_list, list) { 6807 list_del_init(&conn_entry->list); 6808 kfree(conn_entry); 6809 } 6810 6811 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6812 record_count = conn_hdr->length * sizeof(uint32_t)/ 6813 sizeof(struct lpfc_fcf_conn_rec); 6814 6815 conn_rec = (struct lpfc_fcf_conn_rec *) 6816 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6817 6818 for (i = 0; i < record_count; i++) { 6819 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6820 continue; 6821 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6822 GFP_KERNEL); 6823 if (!conn_entry) { 6824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6825 "2566 Failed to allocate connection" 6826 " table entry\n"); 6827 return; 6828 } 6829 6830 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6831 sizeof(struct lpfc_fcf_conn_rec)); 6832 list_add_tail(&conn_entry->list, 6833 &phba->fcf_conn_rec_list); 6834 } 6835 6836 if (!list_empty(&phba->fcf_conn_rec_list)) { 6837 i = 0; 6838 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6839 list) { 6840 conn_rec = &conn_entry->conn_rec; 6841 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6842 "3345 FCF connection list rec[%02d]: " 6843 "flags:x%04x, vtag:x%04x, " 6844 "fabric_name:x%02x:%02x:%02x:%02x:" 6845 "%02x:%02x:%02x:%02x, " 6846 "switch_name:x%02x:%02x:%02x:%02x:" 6847 "%02x:%02x:%02x:%02x\n", i++, 6848 conn_rec->flags, conn_rec->vlan_tag, 6849 conn_rec->fabric_name[0], 6850 conn_rec->fabric_name[1], 6851 conn_rec->fabric_name[2], 6852 conn_rec->fabric_name[3], 6853 conn_rec->fabric_name[4], 6854 conn_rec->fabric_name[5], 6855 conn_rec->fabric_name[6], 6856 conn_rec->fabric_name[7], 6857 conn_rec->switch_name[0], 6858 conn_rec->switch_name[1], 6859 conn_rec->switch_name[2], 6860 conn_rec->switch_name[3], 6861 conn_rec->switch_name[4], 6862 conn_rec->switch_name[5], 6863 conn_rec->switch_name[6], 6864 conn_rec->switch_name[7]); 6865 } 6866 } 6867 } 6868 6869 /** 6870 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6871 * @phba: Pointer to hba context object. 6872 * @buff: Buffer containing the FCoE parameter data structure. 6873 * 6874 * This function update driver data structure with config 6875 * parameters read from config region 23. 6876 */ 6877 static void 6878 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6879 uint8_t *buff) 6880 { 6881 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6882 struct lpfc_fcoe_params *fcoe_param; 6883 6884 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6885 buff; 6886 fcoe_param = (struct lpfc_fcoe_params *) 6887 (buff + sizeof(struct lpfc_fip_param_hdr)); 6888 6889 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6890 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6891 return; 6892 6893 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6894 phba->valid_vlan = 1; 6895 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6896 0xFFF; 6897 } 6898 6899 phba->fc_map[0] = fcoe_param->fc_map[0]; 6900 phba->fc_map[1] = fcoe_param->fc_map[1]; 6901 phba->fc_map[2] = fcoe_param->fc_map[2]; 6902 return; 6903 } 6904 6905 /** 6906 * lpfc_get_rec_conf23 - Get a record type in config region data. 6907 * @buff: Buffer containing config region 23 data. 6908 * @size: Size of the data buffer. 6909 * @rec_type: Record type to be searched. 6910 * 6911 * This function searches config region data to find the beginning 6912 * of the record specified by record_type. If record found, this 6913 * function return pointer to the record else return NULL. 6914 */ 6915 static uint8_t * 6916 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6917 { 6918 uint32_t offset = 0, rec_length; 6919 6920 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6921 (size < sizeof(uint32_t))) 6922 return NULL; 6923 6924 rec_length = buff[offset + 1]; 6925 6926 /* 6927 * One TLV record has one word header and number of data words 6928 * specified in the rec_length field of the record header. 6929 */ 6930 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6931 <= size) { 6932 if (buff[offset] == rec_type) 6933 return &buff[offset]; 6934 6935 if (buff[offset] == LPFC_REGION23_LAST_REC) 6936 return NULL; 6937 6938 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6939 rec_length = buff[offset + 1]; 6940 } 6941 return NULL; 6942 } 6943 6944 /** 6945 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6946 * @phba: Pointer to lpfc_hba data structure. 6947 * @buff: Buffer containing config region 23 data. 6948 * @size: Size of the data buffer. 6949 * 6950 * This function parses the FCoE config parameters in config region 23 and 6951 * populate driver data structure with the parameters. 6952 */ 6953 void 6954 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6955 uint8_t *buff, 6956 uint32_t size) 6957 { 6958 uint32_t offset = 0; 6959 uint8_t *rec_ptr; 6960 6961 /* 6962 * If data size is less than 2 words signature and version cannot be 6963 * verified. 6964 */ 6965 if (size < 2*sizeof(uint32_t)) 6966 return; 6967 6968 /* Check the region signature first */ 6969 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6971 "2567 Config region 23 has bad signature\n"); 6972 return; 6973 } 6974 6975 offset += 4; 6976 6977 /* Check the data structure version */ 6978 if (buff[offset] != LPFC_REGION23_VERSION) { 6979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6980 "2568 Config region 23 has bad version\n"); 6981 return; 6982 } 6983 offset += 4; 6984 6985 /* Read FCoE param record */ 6986 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6987 size - offset, FCOE_PARAM_TYPE); 6988 if (rec_ptr) 6989 lpfc_read_fcoe_param(phba, rec_ptr); 6990 6991 /* Read FCF connection table */ 6992 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6993 size - offset, FCOE_CONN_TBL_TYPE); 6994 if (rec_ptr) 6995 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6996 6997 } 6998