1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2020 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 #include <linux/utsname.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_transport_fc.h> 37 #include <scsi/fc/fc_fs.h> 38 39 #include "lpfc_hw4.h" 40 #include "lpfc_hw.h" 41 #include "lpfc_nl.h" 42 #include "lpfc_disc.h" 43 #include "lpfc_sli.h" 44 #include "lpfc_sli4.h" 45 #include "lpfc.h" 46 #include "lpfc_scsi.h" 47 #include "lpfc_nvme.h" 48 #include "lpfc_logmsg.h" 49 #include "lpfc_crtn.h" 50 #include "lpfc_vport.h" 51 #include "lpfc_debugfs.h" 52 53 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 54 static uint8_t lpfcAlpaArray[] = { 55 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 56 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 57 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 58 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 59 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 60 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 61 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 62 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 63 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 64 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 65 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 66 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 67 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 68 }; 69 70 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 71 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 72 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 73 static int lpfc_fcf_inuse(struct lpfc_hba *); 74 75 void 76 lpfc_terminate_rport_io(struct fc_rport *rport) 77 { 78 struct lpfc_rport_data *rdata; 79 struct lpfc_nodelist * ndlp; 80 struct lpfc_hba *phba; 81 82 rdata = rport->dd_data; 83 ndlp = rdata->pnode; 84 85 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 86 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 87 printk(KERN_ERR "Cannot find remote node" 88 " to terminate I/O Data x%x\n", 89 rport->port_id); 90 return; 91 } 92 93 phba = ndlp->phba; 94 95 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 96 "rport terminate: sid:x%x did:x%x flg:x%x", 97 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 98 99 if (ndlp->nlp_sid != NLP_NO_SID) { 100 lpfc_sli_abort_iocb(ndlp->vport, 101 &phba->sli.sli3_ring[LPFC_FCP_RING], 102 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 103 } 104 } 105 106 /* 107 * This function will be called when dev_loss_tmo fire. 108 */ 109 void 110 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 111 { 112 struct lpfc_rport_data *rdata; 113 struct lpfc_nodelist * ndlp; 114 struct lpfc_vport *vport; 115 struct Scsi_Host *shost; 116 struct lpfc_hba *phba; 117 struct lpfc_work_evt *evtp; 118 int put_node; 119 int put_rport; 120 unsigned long iflags; 121 122 rdata = rport->dd_data; 123 ndlp = rdata->pnode; 124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 125 return; 126 127 vport = ndlp->vport; 128 phba = vport->phba; 129 130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 131 "rport devlosscb: sid:x%x did:x%x flg:x%x", 132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 133 134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 135 "3181 dev_loss_callbk x%06x, rport x%px flg x%x\n", 136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 137 138 /* Don't defer this if we are in the process of deleting the vport 139 * or unloading the driver. The unload will cleanup the node 140 * appropriately we just need to cleanup the ndlp rport info here. 141 */ 142 if (vport->load_flag & FC_UNLOADING) { 143 put_node = rdata->pnode != NULL; 144 put_rport = ndlp->rport != NULL; 145 rdata->pnode = NULL; 146 ndlp->rport = NULL; 147 if (put_node) 148 lpfc_nlp_put(ndlp); 149 if (put_rport) 150 put_device(&rport->dev); 151 return; 152 } 153 154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 155 return; 156 157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 159 "6789 rport name %llx != node port name %llx", 160 rport->port_name, 161 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 162 163 evtp = &ndlp->dev_loss_evt; 164 165 if (!list_empty(&evtp->evt_listp)) { 166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 167 "6790 rport name %llx dev_loss_evt pending", 168 rport->port_name); 169 return; 170 } 171 172 shost = lpfc_shost_from_vport(vport); 173 spin_lock_irqsave(shost->host_lock, iflags); 174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 175 spin_unlock_irqrestore(shost->host_lock, iflags); 176 177 /* We need to hold the node by incrementing the reference 178 * count until this queued work is done 179 */ 180 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 181 182 spin_lock_irqsave(&phba->hbalock, iflags); 183 if (evtp->evt_arg1) { 184 evtp->evt = LPFC_EVT_DEV_LOSS; 185 list_add_tail(&evtp->evt_listp, &phba->work_list); 186 lpfc_worker_wake_up(phba); 187 } 188 spin_unlock_irqrestore(&phba->hbalock, iflags); 189 190 return; 191 } 192 193 /** 194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 195 * @ndlp: Pointer to remote node object. 196 * 197 * This function is called from the worker thread when devloss timeout timer 198 * expires. For SLI4 host, this routine shall return 1 when at lease one 199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 200 * routine shall return 0 when there is no remote node is still in use of FCF 201 * when devloss timeout happened to this @ndlp. 202 **/ 203 static int 204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 205 { 206 struct lpfc_rport_data *rdata; 207 struct fc_rport *rport; 208 struct lpfc_vport *vport; 209 struct lpfc_hba *phba; 210 struct Scsi_Host *shost; 211 uint8_t *name; 212 int put_node; 213 int warn_on = 0; 214 int fcf_inuse = 0; 215 unsigned long iflags; 216 217 rport = ndlp->rport; 218 vport = ndlp->vport; 219 shost = lpfc_shost_from_vport(vport); 220 221 spin_lock_irqsave(shost->host_lock, iflags); 222 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 223 spin_unlock_irqrestore(shost->host_lock, iflags); 224 225 if (!rport) 226 return fcf_inuse; 227 228 name = (uint8_t *) &ndlp->nlp_portname; 229 phba = vport->phba; 230 231 if (phba->sli_rev == LPFC_SLI_REV4) 232 fcf_inuse = lpfc_fcf_inuse(phba); 233 234 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 235 "rport devlosstmo:did:x%x type:x%x id:x%x", 236 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 237 238 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 239 "3182 dev_loss_tmo_handler x%06x, rport x%px flg x%x\n", 240 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 241 242 /* 243 * lpfc_nlp_remove if reached with dangling rport drops the 244 * reference. To make sure that does not happen clear rport 245 * pointer in ndlp before lpfc_nlp_put. 246 */ 247 rdata = rport->dd_data; 248 249 /* Don't defer this if we are in the process of deleting the vport 250 * or unloading the driver. The unload will cleanup the node 251 * appropriately we just need to cleanup the ndlp rport info here. 252 */ 253 if (vport->load_flag & FC_UNLOADING) { 254 if (ndlp->nlp_sid != NLP_NO_SID) { 255 /* flush the target */ 256 lpfc_sli_abort_iocb(vport, 257 &phba->sli.sli3_ring[LPFC_FCP_RING], 258 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 259 } 260 put_node = rdata->pnode != NULL; 261 rdata->pnode = NULL; 262 ndlp->rport = NULL; 263 if (put_node) 264 lpfc_nlp_put(ndlp); 265 put_device(&rport->dev); 266 267 return fcf_inuse; 268 } 269 270 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 271 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 272 "0284 Devloss timeout Ignored on " 273 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 274 "NPort x%x\n", 275 *name, *(name+1), *(name+2), *(name+3), 276 *(name+4), *(name+5), *(name+6), *(name+7), 277 ndlp->nlp_DID); 278 return fcf_inuse; 279 } 280 281 put_node = rdata->pnode != NULL; 282 rdata->pnode = NULL; 283 ndlp->rport = NULL; 284 if (put_node) 285 lpfc_nlp_put(ndlp); 286 put_device(&rport->dev); 287 288 if (ndlp->nlp_type & NLP_FABRIC) 289 return fcf_inuse; 290 291 if (ndlp->nlp_sid != NLP_NO_SID) { 292 warn_on = 1; 293 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 294 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 295 } 296 297 if (warn_on) { 298 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 299 "0203 Devloss timeout on " 300 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 301 "NPort x%06x Data: x%x x%x x%x\n", 302 *name, *(name+1), *(name+2), *(name+3), 303 *(name+4), *(name+5), *(name+6), *(name+7), 304 ndlp->nlp_DID, ndlp->nlp_flag, 305 ndlp->nlp_state, ndlp->nlp_rpi); 306 } else { 307 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 308 "0204 Devloss timeout on " 309 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 310 "NPort x%06x Data: x%x x%x x%x\n", 311 *name, *(name+1), *(name+2), *(name+3), 312 *(name+4), *(name+5), *(name+6), *(name+7), 313 ndlp->nlp_DID, ndlp->nlp_flag, 314 ndlp->nlp_state, ndlp->nlp_rpi); 315 } 316 317 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 318 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 319 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 320 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 321 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 322 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 323 324 return fcf_inuse; 325 } 326 327 /** 328 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 329 * @phba: Pointer to hba context object. 330 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 331 * @nlp_did: remote node identifer with devloss timeout. 332 * 333 * This function is called from the worker thread after invoking devloss 334 * timeout handler and releasing the reference count for the ndlp with 335 * which the devloss timeout was handled for SLI4 host. For the devloss 336 * timeout of the last remote node which had been in use of FCF, when this 337 * routine is invoked, it shall be guaranteed that none of the remote are 338 * in-use of FCF. When devloss timeout to the last remote using the FCF, 339 * if the FIP engine is neither in FCF table scan process nor roundrobin 340 * failover process, the in-use FCF shall be unregistered. If the FIP 341 * engine is in FCF discovery process, the devloss timeout state shall 342 * be set for either the FCF table scan process or roundrobin failover 343 * process to unregister the in-use FCF. 344 **/ 345 static void 346 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 347 uint32_t nlp_did) 348 { 349 /* If devloss timeout happened to a remote node when FCF had no 350 * longer been in-use, do nothing. 351 */ 352 if (!fcf_inuse) 353 return; 354 355 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 356 spin_lock_irq(&phba->hbalock); 357 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 358 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 359 spin_unlock_irq(&phba->hbalock); 360 return; 361 } 362 phba->hba_flag |= HBA_DEVLOSS_TMO; 363 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 364 "2847 Last remote node (x%x) using " 365 "FCF devloss tmo\n", nlp_did); 366 } 367 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 368 spin_unlock_irq(&phba->hbalock); 369 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 370 "2868 Devloss tmo to FCF rediscovery " 371 "in progress\n"); 372 return; 373 } 374 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 375 spin_unlock_irq(&phba->hbalock); 376 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 377 "2869 Devloss tmo to idle FIP engine, " 378 "unreg in-use FCF and rescan.\n"); 379 /* Unregister in-use FCF and rescan */ 380 lpfc_unregister_fcf_rescan(phba); 381 return; 382 } 383 spin_unlock_irq(&phba->hbalock); 384 if (phba->hba_flag & FCF_TS_INPROG) 385 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 386 "2870 FCF table scan in progress\n"); 387 if (phba->hba_flag & FCF_RR_INPROG) 388 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 389 "2871 FLOGI roundrobin FCF failover " 390 "in progress\n"); 391 } 392 lpfc_unregister_unused_fcf(phba); 393 } 394 395 /** 396 * lpfc_alloc_fast_evt - Allocates data structure for posting event 397 * @phba: Pointer to hba context object. 398 * 399 * This function is called from the functions which need to post 400 * events from interrupt context. This function allocates data 401 * structure required for posting event. It also keeps track of 402 * number of events pending and prevent event storm when there are 403 * too many events. 404 **/ 405 struct lpfc_fast_path_event * 406 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 407 struct lpfc_fast_path_event *ret; 408 409 /* If there are lot of fast event do not exhaust memory due to this */ 410 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 411 return NULL; 412 413 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 414 GFP_ATOMIC); 415 if (ret) { 416 atomic_inc(&phba->fast_event_count); 417 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 418 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 419 } 420 return ret; 421 } 422 423 /** 424 * lpfc_free_fast_evt - Frees event data structure 425 * @phba: Pointer to hba context object. 426 * @evt: Event object which need to be freed. 427 * 428 * This function frees the data structure required for posting 429 * events. 430 **/ 431 void 432 lpfc_free_fast_evt(struct lpfc_hba *phba, 433 struct lpfc_fast_path_event *evt) { 434 435 atomic_dec(&phba->fast_event_count); 436 kfree(evt); 437 } 438 439 /** 440 * lpfc_send_fastpath_evt - Posts events generated from fast path 441 * @phba: Pointer to hba context object. 442 * @evtp: Event data structure. 443 * 444 * This function is called from worker thread, when the interrupt 445 * context need to post an event. This function posts the event 446 * to fc transport netlink interface. 447 **/ 448 static void 449 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 450 struct lpfc_work_evt *evtp) 451 { 452 unsigned long evt_category, evt_sub_category; 453 struct lpfc_fast_path_event *fast_evt_data; 454 char *evt_data; 455 uint32_t evt_data_size; 456 struct Scsi_Host *shost; 457 458 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 459 work_evt); 460 461 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 462 evt_sub_category = (unsigned long) fast_evt_data->un. 463 fabric_evt.subcategory; 464 shost = lpfc_shost_from_vport(fast_evt_data->vport); 465 if (evt_category == FC_REG_FABRIC_EVENT) { 466 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 467 evt_data = (char *) &fast_evt_data->un.read_check_error; 468 evt_data_size = sizeof(fast_evt_data->un. 469 read_check_error); 470 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 471 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 472 evt_data = (char *) &fast_evt_data->un.fabric_evt; 473 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 474 } else { 475 lpfc_free_fast_evt(phba, fast_evt_data); 476 return; 477 } 478 } else if (evt_category == FC_REG_SCSI_EVENT) { 479 switch (evt_sub_category) { 480 case LPFC_EVENT_QFULL: 481 case LPFC_EVENT_DEVBSY: 482 evt_data = (char *) &fast_evt_data->un.scsi_evt; 483 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 484 break; 485 case LPFC_EVENT_CHECK_COND: 486 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 487 evt_data_size = sizeof(fast_evt_data->un. 488 check_cond_evt); 489 break; 490 case LPFC_EVENT_VARQUEDEPTH: 491 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 492 evt_data_size = sizeof(fast_evt_data->un. 493 queue_depth_evt); 494 break; 495 default: 496 lpfc_free_fast_evt(phba, fast_evt_data); 497 return; 498 } 499 } else { 500 lpfc_free_fast_evt(phba, fast_evt_data); 501 return; 502 } 503 504 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 505 fc_host_post_vendor_event(shost, 506 fc_get_event_number(), 507 evt_data_size, 508 evt_data, 509 LPFC_NL_VENDOR_ID); 510 511 lpfc_free_fast_evt(phba, fast_evt_data); 512 return; 513 } 514 515 static void 516 lpfc_work_list_done(struct lpfc_hba *phba) 517 { 518 struct lpfc_work_evt *evtp = NULL; 519 struct lpfc_nodelist *ndlp; 520 int free_evt; 521 int fcf_inuse; 522 uint32_t nlp_did; 523 524 spin_lock_irq(&phba->hbalock); 525 while (!list_empty(&phba->work_list)) { 526 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 527 evt_listp); 528 spin_unlock_irq(&phba->hbalock); 529 free_evt = 1; 530 switch (evtp->evt) { 531 case LPFC_EVT_ELS_RETRY: 532 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 533 lpfc_els_retry_delay_handler(ndlp); 534 free_evt = 0; /* evt is part of ndlp */ 535 /* decrement the node reference count held 536 * for this queued work 537 */ 538 lpfc_nlp_put(ndlp); 539 break; 540 case LPFC_EVT_DEV_LOSS: 541 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 542 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 543 free_evt = 0; 544 /* decrement the node reference count held for 545 * this queued work 546 */ 547 nlp_did = ndlp->nlp_DID; 548 lpfc_nlp_put(ndlp); 549 if (phba->sli_rev == LPFC_SLI_REV4) 550 lpfc_sli4_post_dev_loss_tmo_handler(phba, 551 fcf_inuse, 552 nlp_did); 553 break; 554 case LPFC_EVT_ONLINE: 555 if (phba->link_state < LPFC_LINK_DOWN) 556 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 557 else 558 *(int *) (evtp->evt_arg1) = 0; 559 complete((struct completion *)(evtp->evt_arg2)); 560 break; 561 case LPFC_EVT_OFFLINE_PREP: 562 if (phba->link_state >= LPFC_LINK_DOWN) 563 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 564 *(int *)(evtp->evt_arg1) = 0; 565 complete((struct completion *)(evtp->evt_arg2)); 566 break; 567 case LPFC_EVT_OFFLINE: 568 lpfc_offline(phba); 569 lpfc_sli_brdrestart(phba); 570 *(int *)(evtp->evt_arg1) = 571 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 572 lpfc_unblock_mgmt_io(phba); 573 complete((struct completion *)(evtp->evt_arg2)); 574 break; 575 case LPFC_EVT_WARM_START: 576 lpfc_offline(phba); 577 lpfc_reset_barrier(phba); 578 lpfc_sli_brdreset(phba); 579 lpfc_hba_down_post(phba); 580 *(int *)(evtp->evt_arg1) = 581 lpfc_sli_brdready(phba, HS_MBRDY); 582 lpfc_unblock_mgmt_io(phba); 583 complete((struct completion *)(evtp->evt_arg2)); 584 break; 585 case LPFC_EVT_KILL: 586 lpfc_offline(phba); 587 *(int *)(evtp->evt_arg1) 588 = (phba->pport->stopped) 589 ? 0 : lpfc_sli_brdkill(phba); 590 lpfc_unblock_mgmt_io(phba); 591 complete((struct completion *)(evtp->evt_arg2)); 592 break; 593 case LPFC_EVT_FASTPATH_MGMT_EVT: 594 lpfc_send_fastpath_evt(phba, evtp); 595 free_evt = 0; 596 break; 597 case LPFC_EVT_RESET_HBA: 598 if (!(phba->pport->load_flag & FC_UNLOADING)) 599 lpfc_reset_hba(phba); 600 break; 601 } 602 if (free_evt) 603 kfree(evtp); 604 spin_lock_irq(&phba->hbalock); 605 } 606 spin_unlock_irq(&phba->hbalock); 607 608 } 609 610 static void 611 lpfc_work_done(struct lpfc_hba *phba) 612 { 613 struct lpfc_sli_ring *pring; 614 uint32_t ha_copy, status, control, work_port_events; 615 struct lpfc_vport **vports; 616 struct lpfc_vport *vport; 617 int i; 618 619 spin_lock_irq(&phba->hbalock); 620 ha_copy = phba->work_ha; 621 phba->work_ha = 0; 622 spin_unlock_irq(&phba->hbalock); 623 624 /* First, try to post the next mailbox command to SLI4 device */ 625 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 626 lpfc_sli4_post_async_mbox(phba); 627 628 if (ha_copy & HA_ERATT) 629 /* Handle the error attention event */ 630 lpfc_handle_eratt(phba); 631 632 if (ha_copy & HA_MBATT) 633 lpfc_sli_handle_mb_event(phba); 634 635 if (ha_copy & HA_LATT) 636 lpfc_handle_latt(phba); 637 638 /* Process SLI4 events */ 639 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 640 if (phba->hba_flag & HBA_RRQ_ACTIVE) 641 lpfc_handle_rrq_active(phba); 642 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 643 lpfc_sli4_els_xri_abort_event_proc(phba); 644 if (phba->hba_flag & ASYNC_EVENT) 645 lpfc_sli4_async_event_proc(phba); 646 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 647 spin_lock_irq(&phba->hbalock); 648 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 649 spin_unlock_irq(&phba->hbalock); 650 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 651 } 652 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 653 lpfc_sli4_fcf_redisc_event_proc(phba); 654 } 655 656 vports = lpfc_create_vport_work_array(phba); 657 if (vports != NULL) 658 for (i = 0; i <= phba->max_vports; i++) { 659 /* 660 * We could have no vports in array if unloading, so if 661 * this happens then just use the pport 662 */ 663 if (vports[i] == NULL && i == 0) 664 vport = phba->pport; 665 else 666 vport = vports[i]; 667 if (vport == NULL) 668 break; 669 spin_lock_irq(&vport->work_port_lock); 670 work_port_events = vport->work_port_events; 671 vport->work_port_events &= ~work_port_events; 672 spin_unlock_irq(&vport->work_port_lock); 673 if (work_port_events & WORKER_DISC_TMO) 674 lpfc_disc_timeout_handler(vport); 675 if (work_port_events & WORKER_ELS_TMO) 676 lpfc_els_timeout_handler(vport); 677 if (work_port_events & WORKER_HB_TMO) 678 lpfc_hb_timeout_handler(phba); 679 if (work_port_events & WORKER_MBOX_TMO) 680 lpfc_mbox_timeout_handler(phba); 681 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 682 lpfc_unblock_fabric_iocbs(phba); 683 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 684 lpfc_ramp_down_queue_handler(phba); 685 if (work_port_events & WORKER_DELAYED_DISC_TMO) 686 lpfc_delayed_disc_timeout_handler(vport); 687 } 688 lpfc_destroy_vport_work_array(phba, vports); 689 690 pring = lpfc_phba_elsring(phba); 691 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 692 status >>= (4*LPFC_ELS_RING); 693 if (pring && (status & HA_RXMASK || 694 pring->flag & LPFC_DEFERRED_RING_EVENT || 695 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 696 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 697 pring->flag |= LPFC_DEFERRED_RING_EVENT; 698 /* Preserve legacy behavior. */ 699 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 700 set_bit(LPFC_DATA_READY, &phba->data_flags); 701 } else { 702 /* Driver could have abort request completed in queue 703 * when link goes down. Allow for this transition. 704 */ 705 if (phba->link_state >= LPFC_LINK_DOWN || 706 phba->link_flag & LS_MDS_LOOPBACK) { 707 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 708 lpfc_sli_handle_slow_ring_event(phba, pring, 709 (status & 710 HA_RXMASK)); 711 } 712 } 713 if (phba->sli_rev == LPFC_SLI_REV4) 714 lpfc_drain_txq(phba); 715 /* 716 * Turn on Ring interrupts 717 */ 718 if (phba->sli_rev <= LPFC_SLI_REV3) { 719 spin_lock_irq(&phba->hbalock); 720 control = readl(phba->HCregaddr); 721 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 722 lpfc_debugfs_slow_ring_trc(phba, 723 "WRK Enable ring: cntl:x%x hacopy:x%x", 724 control, ha_copy, 0); 725 726 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 727 writel(control, phba->HCregaddr); 728 readl(phba->HCregaddr); /* flush */ 729 } else { 730 lpfc_debugfs_slow_ring_trc(phba, 731 "WRK Ring ok: cntl:x%x hacopy:x%x", 732 control, ha_copy, 0); 733 } 734 spin_unlock_irq(&phba->hbalock); 735 } 736 } 737 lpfc_work_list_done(phba); 738 } 739 740 int 741 lpfc_do_work(void *p) 742 { 743 struct lpfc_hba *phba = p; 744 int rc; 745 746 set_user_nice(current, MIN_NICE); 747 current->flags |= PF_NOFREEZE; 748 phba->data_flags = 0; 749 750 while (!kthread_should_stop()) { 751 /* wait and check worker queue activities */ 752 rc = wait_event_interruptible(phba->work_waitq, 753 (test_and_clear_bit(LPFC_DATA_READY, 754 &phba->data_flags) 755 || kthread_should_stop())); 756 /* Signal wakeup shall terminate the worker thread */ 757 if (rc) { 758 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 759 "0433 Wakeup on signal: rc=x%x\n", rc); 760 break; 761 } 762 763 /* Attend pending lpfc data processing */ 764 lpfc_work_done(phba); 765 } 766 phba->worker_thread = NULL; 767 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 768 "0432 Worker thread stopped.\n"); 769 return 0; 770 } 771 772 /* 773 * This is only called to handle FC worker events. Since this a rare 774 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 775 * embedding it in the IOCB. 776 */ 777 int 778 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 779 uint32_t evt) 780 { 781 struct lpfc_work_evt *evtp; 782 unsigned long flags; 783 784 /* 785 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 786 * be queued to worker thread for processing 787 */ 788 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 789 if (!evtp) 790 return 0; 791 792 evtp->evt_arg1 = arg1; 793 evtp->evt_arg2 = arg2; 794 evtp->evt = evt; 795 796 spin_lock_irqsave(&phba->hbalock, flags); 797 list_add_tail(&evtp->evt_listp, &phba->work_list); 798 spin_unlock_irqrestore(&phba->hbalock, flags); 799 800 lpfc_worker_wake_up(phba); 801 802 return 1; 803 } 804 805 void 806 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 807 { 808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 809 struct lpfc_hba *phba = vport->phba; 810 struct lpfc_nodelist *ndlp, *next_ndlp; 811 812 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 813 if (!NLP_CHK_NODE_ACT(ndlp)) 814 continue; 815 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 816 continue; 817 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 818 ((vport->port_type == LPFC_NPIV_PORT) && 819 (ndlp->nlp_DID == NameServer_DID))) 820 lpfc_unreg_rpi(vport, ndlp); 821 822 /* Leave Fabric nodes alone on link down */ 823 if ((phba->sli_rev < LPFC_SLI_REV4) && 824 (!remove && ndlp->nlp_type & NLP_FABRIC)) 825 continue; 826 827 /* Notify transport of connectivity loss to trigger cleanup. */ 828 if (phba->nvmet_support && 829 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 830 lpfc_nvmet_invalidate_host(phba, ndlp); 831 832 lpfc_disc_state_machine(vport, ndlp, NULL, 833 remove 834 ? NLP_EVT_DEVICE_RM 835 : NLP_EVT_DEVICE_RECOVERY); 836 } 837 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 838 if (phba->sli_rev == LPFC_SLI_REV4) 839 lpfc_sli4_unreg_all_rpis(vport); 840 lpfc_mbx_unreg_vpi(vport); 841 spin_lock_irq(shost->host_lock); 842 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 843 spin_unlock_irq(shost->host_lock); 844 } 845 } 846 847 void 848 lpfc_port_link_failure(struct lpfc_vport *vport) 849 { 850 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 851 852 /* Cleanup any outstanding received buffers */ 853 lpfc_cleanup_rcv_buffers(vport); 854 855 /* Cleanup any outstanding RSCN activity */ 856 lpfc_els_flush_rscn(vport); 857 858 /* Cleanup any outstanding ELS commands */ 859 lpfc_els_flush_cmd(vport); 860 861 lpfc_cleanup_rpis(vport, 0); 862 863 /* Turn off discovery timer if its running */ 864 lpfc_can_disctmo(vport); 865 } 866 867 void 868 lpfc_linkdown_port(struct lpfc_vport *vport) 869 { 870 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 871 872 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 873 fc_host_post_event(shost, fc_get_event_number(), 874 FCH_EVT_LINKDOWN, 0); 875 876 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 877 "Link Down: state:x%x rtry:x%x flg:x%x", 878 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 879 880 lpfc_port_link_failure(vport); 881 882 /* Stop delayed Nport discovery */ 883 spin_lock_irq(shost->host_lock); 884 vport->fc_flag &= ~FC_DISC_DELAYED; 885 spin_unlock_irq(shost->host_lock); 886 del_timer_sync(&vport->delayed_disc_tmo); 887 } 888 889 int 890 lpfc_linkdown(struct lpfc_hba *phba) 891 { 892 struct lpfc_vport *vport = phba->pport; 893 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 894 struct lpfc_vport **vports; 895 LPFC_MBOXQ_t *mb; 896 int i; 897 898 if (phba->link_state == LPFC_LINK_DOWN) 899 return 0; 900 901 /* Block all SCSI stack I/Os */ 902 lpfc_scsi_dev_block(phba); 903 904 phba->defer_flogi_acc_flag = false; 905 906 spin_lock_irq(&phba->hbalock); 907 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 908 spin_unlock_irq(&phba->hbalock); 909 if (phba->link_state > LPFC_LINK_DOWN) { 910 phba->link_state = LPFC_LINK_DOWN; 911 if (phba->sli4_hba.conf_trunk) { 912 phba->trunk_link.link0.state = 0; 913 phba->trunk_link.link1.state = 0; 914 phba->trunk_link.link2.state = 0; 915 phba->trunk_link.link3.state = 0; 916 phba->sli4_hba.link_state.logical_speed = 917 LPFC_LINK_SPEED_UNKNOWN; 918 } 919 spin_lock_irq(shost->host_lock); 920 phba->pport->fc_flag &= ~FC_LBIT; 921 spin_unlock_irq(shost->host_lock); 922 } 923 vports = lpfc_create_vport_work_array(phba); 924 if (vports != NULL) { 925 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 926 /* Issue a LINK DOWN event to all nodes */ 927 lpfc_linkdown_port(vports[i]); 928 929 vports[i]->fc_myDID = 0; 930 931 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 932 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 933 if (phba->nvmet_support) 934 lpfc_nvmet_update_targetport(phba); 935 else 936 lpfc_nvme_update_localport(vports[i]); 937 } 938 } 939 } 940 lpfc_destroy_vport_work_array(phba, vports); 941 942 /* Clean up any SLI3 firmware default rpi's */ 943 if (phba->sli_rev > LPFC_SLI_REV3) 944 goto skip_unreg_did; 945 946 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 947 if (mb) { 948 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 949 mb->vport = vport; 950 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 951 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 952 == MBX_NOT_FINISHED) { 953 mempool_free(mb, phba->mbox_mem_pool); 954 } 955 } 956 957 skip_unreg_did: 958 /* Setup myDID for link up if we are in pt2pt mode */ 959 if (phba->pport->fc_flag & FC_PT2PT) { 960 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 961 if (mb) { 962 lpfc_config_link(phba, mb); 963 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 964 mb->vport = vport; 965 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 966 == MBX_NOT_FINISHED) { 967 mempool_free(mb, phba->mbox_mem_pool); 968 } 969 } 970 spin_lock_irq(shost->host_lock); 971 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 972 phba->pport->rcv_flogi_cnt = 0; 973 spin_unlock_irq(shost->host_lock); 974 } 975 return 0; 976 } 977 978 static void 979 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 980 { 981 struct lpfc_nodelist *ndlp; 982 983 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 984 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 985 if (!NLP_CHK_NODE_ACT(ndlp)) 986 continue; 987 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 988 continue; 989 if (ndlp->nlp_type & NLP_FABRIC) { 990 /* On Linkup its safe to clean up the ndlp 991 * from Fabric connections. 992 */ 993 if (ndlp->nlp_DID != Fabric_DID) 994 lpfc_unreg_rpi(vport, ndlp); 995 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 996 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 997 /* Fail outstanding IO now since device is 998 * marked for PLOGI. 999 */ 1000 lpfc_unreg_rpi(vport, ndlp); 1001 } 1002 } 1003 } 1004 1005 static void 1006 lpfc_linkup_port(struct lpfc_vport *vport) 1007 { 1008 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1009 struct lpfc_hba *phba = vport->phba; 1010 1011 if ((vport->load_flag & FC_UNLOADING) != 0) 1012 return; 1013 1014 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1015 "Link Up: top:x%x speed:x%x flg:x%x", 1016 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1017 1018 /* If NPIV is not enabled, only bring the physical port up */ 1019 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1020 (vport != phba->pport)) 1021 return; 1022 1023 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1024 fc_host_post_event(shost, fc_get_event_number(), 1025 FCH_EVT_LINKUP, 0); 1026 1027 spin_lock_irq(shost->host_lock); 1028 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1029 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1030 vport->fc_flag |= FC_NDISC_ACTIVE; 1031 vport->fc_ns_retry = 0; 1032 spin_unlock_irq(shost->host_lock); 1033 1034 if (vport->fc_flag & FC_LBIT) 1035 lpfc_linkup_cleanup_nodes(vport); 1036 1037 } 1038 1039 static int 1040 lpfc_linkup(struct lpfc_hba *phba) 1041 { 1042 struct lpfc_vport **vports; 1043 int i; 1044 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1045 1046 phba->link_state = LPFC_LINK_UP; 1047 1048 /* Unblock fabric iocbs if they are blocked */ 1049 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1050 del_timer_sync(&phba->fabric_block_timer); 1051 1052 vports = lpfc_create_vport_work_array(phba); 1053 if (vports != NULL) 1054 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1055 lpfc_linkup_port(vports[i]); 1056 lpfc_destroy_vport_work_array(phba, vports); 1057 1058 /* Clear the pport flogi counter in case the link down was 1059 * absorbed without an ACQE. No lock here - in worker thread 1060 * and discovery is synchronized. 1061 */ 1062 spin_lock_irq(shost->host_lock); 1063 phba->pport->rcv_flogi_cnt = 0; 1064 spin_unlock_irq(shost->host_lock); 1065 1066 /* reinitialize initial FLOGI flag */ 1067 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1068 phba->defer_flogi_acc_flag = false; 1069 1070 return 0; 1071 } 1072 1073 /* 1074 * This routine handles processing a CLEAR_LA mailbox 1075 * command upon completion. It is setup in the LPFC_MBOXQ 1076 * as the completion routine when the command is 1077 * handed off to the SLI layer. SLI3 only. 1078 */ 1079 static void 1080 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1081 { 1082 struct lpfc_vport *vport = pmb->vport; 1083 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1084 struct lpfc_sli *psli = &phba->sli; 1085 MAILBOX_t *mb = &pmb->u.mb; 1086 uint32_t control; 1087 1088 /* Since we don't do discovery right now, turn these off here */ 1089 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1090 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1091 1092 /* Check for error */ 1093 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1094 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1095 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1096 "0320 CLEAR_LA mbxStatus error x%x hba " 1097 "state x%x\n", 1098 mb->mbxStatus, vport->port_state); 1099 phba->link_state = LPFC_HBA_ERROR; 1100 goto out; 1101 } 1102 1103 if (vport->port_type == LPFC_PHYSICAL_PORT) 1104 phba->link_state = LPFC_HBA_READY; 1105 1106 spin_lock_irq(&phba->hbalock); 1107 psli->sli_flag |= LPFC_PROCESS_LA; 1108 control = readl(phba->HCregaddr); 1109 control |= HC_LAINT_ENA; 1110 writel(control, phba->HCregaddr); 1111 readl(phba->HCregaddr); /* flush */ 1112 spin_unlock_irq(&phba->hbalock); 1113 mempool_free(pmb, phba->mbox_mem_pool); 1114 return; 1115 1116 out: 1117 /* Device Discovery completes */ 1118 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1119 "0225 Device Discovery completes\n"); 1120 mempool_free(pmb, phba->mbox_mem_pool); 1121 1122 spin_lock_irq(shost->host_lock); 1123 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1124 spin_unlock_irq(shost->host_lock); 1125 1126 lpfc_can_disctmo(vport); 1127 1128 /* turn on Link Attention interrupts */ 1129 1130 spin_lock_irq(&phba->hbalock); 1131 psli->sli_flag |= LPFC_PROCESS_LA; 1132 control = readl(phba->HCregaddr); 1133 control |= HC_LAINT_ENA; 1134 writel(control, phba->HCregaddr); 1135 readl(phba->HCregaddr); /* flush */ 1136 spin_unlock_irq(&phba->hbalock); 1137 1138 return; 1139 } 1140 1141 1142 void 1143 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1144 { 1145 struct lpfc_vport *vport = pmb->vport; 1146 1147 if (pmb->u.mb.mbxStatus) 1148 goto out; 1149 1150 mempool_free(pmb, phba->mbox_mem_pool); 1151 1152 /* don't perform discovery for SLI4 loopback diagnostic test */ 1153 if ((phba->sli_rev == LPFC_SLI_REV4) && 1154 !(phba->hba_flag & HBA_FCOE_MODE) && 1155 (phba->link_flag & LS_LOOPBACK_MODE)) 1156 return; 1157 1158 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1159 vport->fc_flag & FC_PUBLIC_LOOP && 1160 !(vport->fc_flag & FC_LBIT)) { 1161 /* Need to wait for FAN - use discovery timer 1162 * for timeout. port_state is identically 1163 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1164 */ 1165 lpfc_set_disctmo(vport); 1166 return; 1167 } 1168 1169 /* Start discovery by sending a FLOGI. port_state is identically 1170 * LPFC_FLOGI while waiting for FLOGI cmpl. Check if sending 1171 * the FLOGI is being deferred till after MBX_READ_SPARAM completes. 1172 */ 1173 if (vport->port_state != LPFC_FLOGI) { 1174 if (!(phba->hba_flag & HBA_DEFER_FLOGI)) 1175 lpfc_initial_flogi(vport); 1176 } else { 1177 if (vport->fc_flag & FC_PT2PT) 1178 lpfc_disc_start(vport); 1179 } 1180 return; 1181 1182 out: 1183 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1184 "0306 CONFIG_LINK mbxStatus error x%x " 1185 "HBA state x%x\n", 1186 pmb->u.mb.mbxStatus, vport->port_state); 1187 mempool_free(pmb, phba->mbox_mem_pool); 1188 1189 lpfc_linkdown(phba); 1190 1191 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1192 "0200 CONFIG_LINK bad hba state x%x\n", 1193 vport->port_state); 1194 1195 lpfc_issue_clear_la(phba, vport); 1196 return; 1197 } 1198 1199 /** 1200 * lpfc_sli4_clear_fcf_rr_bmask 1201 * @phba pointer to the struct lpfc_hba for this port. 1202 * This fucnction resets the round robin bit mask and clears the 1203 * fcf priority list. The list deletions are done while holding the 1204 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1205 * from the lpfc_fcf_pri record. 1206 **/ 1207 void 1208 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1209 { 1210 struct lpfc_fcf_pri *fcf_pri; 1211 struct lpfc_fcf_pri *next_fcf_pri; 1212 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1213 spin_lock_irq(&phba->hbalock); 1214 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1215 &phba->fcf.fcf_pri_list, list) { 1216 list_del_init(&fcf_pri->list); 1217 fcf_pri->fcf_rec.flag = 0; 1218 } 1219 spin_unlock_irq(&phba->hbalock); 1220 } 1221 static void 1222 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1223 { 1224 struct lpfc_vport *vport = mboxq->vport; 1225 1226 if (mboxq->u.mb.mbxStatus) { 1227 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1228 "2017 REG_FCFI mbxStatus error x%x " 1229 "HBA state x%x\n", 1230 mboxq->u.mb.mbxStatus, vport->port_state); 1231 goto fail_out; 1232 } 1233 1234 /* Start FCoE discovery by sending a FLOGI. */ 1235 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1236 /* Set the FCFI registered flag */ 1237 spin_lock_irq(&phba->hbalock); 1238 phba->fcf.fcf_flag |= FCF_REGISTERED; 1239 spin_unlock_irq(&phba->hbalock); 1240 1241 /* If there is a pending FCoE event, restart FCF table scan. */ 1242 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1243 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1244 goto fail_out; 1245 1246 /* Mark successful completion of FCF table scan */ 1247 spin_lock_irq(&phba->hbalock); 1248 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1249 phba->hba_flag &= ~FCF_TS_INPROG; 1250 if (vport->port_state != LPFC_FLOGI) { 1251 phba->hba_flag |= FCF_RR_INPROG; 1252 spin_unlock_irq(&phba->hbalock); 1253 lpfc_issue_init_vfi(vport); 1254 goto out; 1255 } 1256 spin_unlock_irq(&phba->hbalock); 1257 goto out; 1258 1259 fail_out: 1260 spin_lock_irq(&phba->hbalock); 1261 phba->hba_flag &= ~FCF_RR_INPROG; 1262 spin_unlock_irq(&phba->hbalock); 1263 out: 1264 mempool_free(mboxq, phba->mbox_mem_pool); 1265 } 1266 1267 /** 1268 * lpfc_fab_name_match - Check if the fcf fabric name match. 1269 * @fab_name: pointer to fabric name. 1270 * @new_fcf_record: pointer to fcf record. 1271 * 1272 * This routine compare the fcf record's fabric name with provided 1273 * fabric name. If the fabric name are identical this function 1274 * returns 1 else return 0. 1275 **/ 1276 static uint32_t 1277 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1278 { 1279 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1280 return 0; 1281 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1282 return 0; 1283 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1284 return 0; 1285 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1286 return 0; 1287 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1288 return 0; 1289 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1290 return 0; 1291 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1292 return 0; 1293 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1294 return 0; 1295 return 1; 1296 } 1297 1298 /** 1299 * lpfc_sw_name_match - Check if the fcf switch name match. 1300 * @fab_name: pointer to fabric name. 1301 * @new_fcf_record: pointer to fcf record. 1302 * 1303 * This routine compare the fcf record's switch name with provided 1304 * switch name. If the switch name are identical this function 1305 * returns 1 else return 0. 1306 **/ 1307 static uint32_t 1308 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1309 { 1310 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1311 return 0; 1312 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1313 return 0; 1314 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1315 return 0; 1316 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1317 return 0; 1318 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1319 return 0; 1320 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1321 return 0; 1322 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1323 return 0; 1324 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1325 return 0; 1326 return 1; 1327 } 1328 1329 /** 1330 * lpfc_mac_addr_match - Check if the fcf mac address match. 1331 * @mac_addr: pointer to mac address. 1332 * @new_fcf_record: pointer to fcf record. 1333 * 1334 * This routine compare the fcf record's mac address with HBA's 1335 * FCF mac address. If the mac addresses are identical this function 1336 * returns 1 else return 0. 1337 **/ 1338 static uint32_t 1339 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1340 { 1341 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1342 return 0; 1343 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1344 return 0; 1345 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1346 return 0; 1347 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1348 return 0; 1349 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1350 return 0; 1351 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1352 return 0; 1353 return 1; 1354 } 1355 1356 static bool 1357 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1358 { 1359 return (curr_vlan_id == new_vlan_id); 1360 } 1361 1362 /** 1363 * lpfc_update_fcf_record - Update driver fcf record 1364 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1365 * @phba: pointer to lpfc hba data structure. 1366 * @fcf_index: Index for the lpfc_fcf_record. 1367 * @new_fcf_record: pointer to hba fcf record. 1368 * 1369 * This routine updates the driver FCF priority record from the new HBA FCF 1370 * record. This routine is called with the host lock held. 1371 **/ 1372 static void 1373 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1374 struct fcf_record *new_fcf_record 1375 ) 1376 { 1377 struct lpfc_fcf_pri *fcf_pri; 1378 1379 lockdep_assert_held(&phba->hbalock); 1380 1381 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1382 fcf_pri->fcf_rec.fcf_index = fcf_index; 1383 /* FCF record priority */ 1384 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1385 1386 } 1387 1388 /** 1389 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1390 * @fcf: pointer to driver fcf record. 1391 * @new_fcf_record: pointer to fcf record. 1392 * 1393 * This routine copies the FCF information from the FCF 1394 * record to lpfc_hba data structure. 1395 **/ 1396 static void 1397 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1398 struct fcf_record *new_fcf_record) 1399 { 1400 /* Fabric name */ 1401 fcf_rec->fabric_name[0] = 1402 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1403 fcf_rec->fabric_name[1] = 1404 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1405 fcf_rec->fabric_name[2] = 1406 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1407 fcf_rec->fabric_name[3] = 1408 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1409 fcf_rec->fabric_name[4] = 1410 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1411 fcf_rec->fabric_name[5] = 1412 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1413 fcf_rec->fabric_name[6] = 1414 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1415 fcf_rec->fabric_name[7] = 1416 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1417 /* Mac address */ 1418 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1419 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1420 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1421 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1422 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1423 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1424 /* FCF record index */ 1425 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1426 /* FCF record priority */ 1427 fcf_rec->priority = new_fcf_record->fip_priority; 1428 /* Switch name */ 1429 fcf_rec->switch_name[0] = 1430 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1431 fcf_rec->switch_name[1] = 1432 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1433 fcf_rec->switch_name[2] = 1434 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1435 fcf_rec->switch_name[3] = 1436 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1437 fcf_rec->switch_name[4] = 1438 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1439 fcf_rec->switch_name[5] = 1440 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1441 fcf_rec->switch_name[6] = 1442 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1443 fcf_rec->switch_name[7] = 1444 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1445 } 1446 1447 /** 1448 * lpfc_update_fcf_record - Update driver fcf record 1449 * @phba: pointer to lpfc hba data structure. 1450 * @fcf_rec: pointer to driver fcf record. 1451 * @new_fcf_record: pointer to hba fcf record. 1452 * @addr_mode: address mode to be set to the driver fcf record. 1453 * @vlan_id: vlan tag to be set to the driver fcf record. 1454 * @flag: flag bits to be set to the driver fcf record. 1455 * 1456 * This routine updates the driver FCF record from the new HBA FCF record 1457 * together with the address mode, vlan_id, and other informations. This 1458 * routine is called with the host lock held. 1459 **/ 1460 static void 1461 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1462 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1463 uint16_t vlan_id, uint32_t flag) 1464 { 1465 lockdep_assert_held(&phba->hbalock); 1466 1467 /* Copy the fields from the HBA's FCF record */ 1468 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1469 /* Update other fields of driver FCF record */ 1470 fcf_rec->addr_mode = addr_mode; 1471 fcf_rec->vlan_id = vlan_id; 1472 fcf_rec->flag |= (flag | RECORD_VALID); 1473 __lpfc_update_fcf_record_pri(phba, 1474 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1475 new_fcf_record); 1476 } 1477 1478 /** 1479 * lpfc_register_fcf - Register the FCF with hba. 1480 * @phba: pointer to lpfc hba data structure. 1481 * 1482 * This routine issues a register fcfi mailbox command to register 1483 * the fcf with HBA. 1484 **/ 1485 static void 1486 lpfc_register_fcf(struct lpfc_hba *phba) 1487 { 1488 LPFC_MBOXQ_t *fcf_mbxq; 1489 int rc; 1490 1491 spin_lock_irq(&phba->hbalock); 1492 /* If the FCF is not available do nothing. */ 1493 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1494 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1495 spin_unlock_irq(&phba->hbalock); 1496 return; 1497 } 1498 1499 /* The FCF is already registered, start discovery */ 1500 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1501 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1502 phba->hba_flag &= ~FCF_TS_INPROG; 1503 if (phba->pport->port_state != LPFC_FLOGI && 1504 phba->pport->fc_flag & FC_FABRIC) { 1505 phba->hba_flag |= FCF_RR_INPROG; 1506 spin_unlock_irq(&phba->hbalock); 1507 lpfc_initial_flogi(phba->pport); 1508 return; 1509 } 1510 spin_unlock_irq(&phba->hbalock); 1511 return; 1512 } 1513 spin_unlock_irq(&phba->hbalock); 1514 1515 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1516 if (!fcf_mbxq) { 1517 spin_lock_irq(&phba->hbalock); 1518 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1519 spin_unlock_irq(&phba->hbalock); 1520 return; 1521 } 1522 1523 lpfc_reg_fcfi(phba, fcf_mbxq); 1524 fcf_mbxq->vport = phba->pport; 1525 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1526 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1527 if (rc == MBX_NOT_FINISHED) { 1528 spin_lock_irq(&phba->hbalock); 1529 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1530 spin_unlock_irq(&phba->hbalock); 1531 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1532 } 1533 1534 return; 1535 } 1536 1537 /** 1538 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1539 * @phba: pointer to lpfc hba data structure. 1540 * @new_fcf_record: pointer to fcf record. 1541 * @boot_flag: Indicates if this record used by boot bios. 1542 * @addr_mode: The address mode to be used by this FCF 1543 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1544 * 1545 * This routine compare the fcf record with connect list obtained from the 1546 * config region to decide if this FCF can be used for SAN discovery. It returns 1547 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1548 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1549 * is used by boot bios and addr_mode will indicate the addressing mode to be 1550 * used for this FCF when the function returns. 1551 * If the FCF record need to be used with a particular vlan id, the vlan is 1552 * set in the vlan_id on return of the function. If not VLAN tagging need to 1553 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1554 **/ 1555 static int 1556 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1557 struct fcf_record *new_fcf_record, 1558 uint32_t *boot_flag, uint32_t *addr_mode, 1559 uint16_t *vlan_id) 1560 { 1561 struct lpfc_fcf_conn_entry *conn_entry; 1562 int i, j, fcf_vlan_id = 0; 1563 1564 /* Find the lowest VLAN id in the FCF record */ 1565 for (i = 0; i < 512; i++) { 1566 if (new_fcf_record->vlan_bitmap[i]) { 1567 fcf_vlan_id = i * 8; 1568 j = 0; 1569 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1570 j++; 1571 fcf_vlan_id++; 1572 } 1573 break; 1574 } 1575 } 1576 1577 /* FCF not valid/available or solicitation in progress */ 1578 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1579 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1580 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1581 return 0; 1582 1583 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1584 *boot_flag = 0; 1585 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1586 new_fcf_record); 1587 if (phba->valid_vlan) 1588 *vlan_id = phba->vlan_id; 1589 else 1590 *vlan_id = LPFC_FCOE_NULL_VID; 1591 return 1; 1592 } 1593 1594 /* 1595 * If there are no FCF connection table entry, driver connect to all 1596 * FCFs. 1597 */ 1598 if (list_empty(&phba->fcf_conn_rec_list)) { 1599 *boot_flag = 0; 1600 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1601 new_fcf_record); 1602 1603 /* 1604 * When there are no FCF connect entries, use driver's default 1605 * addressing mode - FPMA. 1606 */ 1607 if (*addr_mode & LPFC_FCF_FPMA) 1608 *addr_mode = LPFC_FCF_FPMA; 1609 1610 /* If FCF record report a vlan id use that vlan id */ 1611 if (fcf_vlan_id) 1612 *vlan_id = fcf_vlan_id; 1613 else 1614 *vlan_id = LPFC_FCOE_NULL_VID; 1615 return 1; 1616 } 1617 1618 list_for_each_entry(conn_entry, 1619 &phba->fcf_conn_rec_list, list) { 1620 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1621 continue; 1622 1623 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1624 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1625 new_fcf_record)) 1626 continue; 1627 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1628 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1629 new_fcf_record)) 1630 continue; 1631 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1632 /* 1633 * If the vlan bit map does not have the bit set for the 1634 * vlan id to be used, then it is not a match. 1635 */ 1636 if (!(new_fcf_record->vlan_bitmap 1637 [conn_entry->conn_rec.vlan_tag / 8] & 1638 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1639 continue; 1640 } 1641 1642 /* 1643 * If connection record does not support any addressing mode, 1644 * skip the FCF record. 1645 */ 1646 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1647 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1648 continue; 1649 1650 /* 1651 * Check if the connection record specifies a required 1652 * addressing mode. 1653 */ 1654 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1655 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1656 1657 /* 1658 * If SPMA required but FCF not support this continue. 1659 */ 1660 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1661 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1662 new_fcf_record) & LPFC_FCF_SPMA)) 1663 continue; 1664 1665 /* 1666 * If FPMA required but FCF not support this continue. 1667 */ 1668 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1669 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1670 new_fcf_record) & LPFC_FCF_FPMA)) 1671 continue; 1672 } 1673 1674 /* 1675 * This fcf record matches filtering criteria. 1676 */ 1677 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1678 *boot_flag = 1; 1679 else 1680 *boot_flag = 0; 1681 1682 /* 1683 * If user did not specify any addressing mode, or if the 1684 * preferred addressing mode specified by user is not supported 1685 * by FCF, allow fabric to pick the addressing mode. 1686 */ 1687 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1688 new_fcf_record); 1689 /* 1690 * If the user specified a required address mode, assign that 1691 * address mode 1692 */ 1693 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1694 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1695 *addr_mode = (conn_entry->conn_rec.flags & 1696 FCFCNCT_AM_SPMA) ? 1697 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1698 /* 1699 * If the user specified a preferred address mode, use the 1700 * addr mode only if FCF support the addr_mode. 1701 */ 1702 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1703 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1704 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1705 (*addr_mode & LPFC_FCF_SPMA)) 1706 *addr_mode = LPFC_FCF_SPMA; 1707 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1708 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1709 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1710 (*addr_mode & LPFC_FCF_FPMA)) 1711 *addr_mode = LPFC_FCF_FPMA; 1712 1713 /* If matching connect list has a vlan id, use it */ 1714 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1715 *vlan_id = conn_entry->conn_rec.vlan_tag; 1716 /* 1717 * If no vlan id is specified in connect list, use the vlan id 1718 * in the FCF record 1719 */ 1720 else if (fcf_vlan_id) 1721 *vlan_id = fcf_vlan_id; 1722 else 1723 *vlan_id = LPFC_FCOE_NULL_VID; 1724 1725 return 1; 1726 } 1727 1728 return 0; 1729 } 1730 1731 /** 1732 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1733 * @phba: pointer to lpfc hba data structure. 1734 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1735 * 1736 * This function check if there is any fcoe event pending while driver 1737 * scan FCF entries. If there is any pending event, it will restart the 1738 * FCF saning and return 1 else return 0. 1739 */ 1740 int 1741 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1742 { 1743 /* 1744 * If the Link is up and no FCoE events while in the 1745 * FCF discovery, no need to restart FCF discovery. 1746 */ 1747 if ((phba->link_state >= LPFC_LINK_UP) && 1748 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1749 return 0; 1750 1751 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1752 "2768 Pending link or FCF event during current " 1753 "handling of the previous event: link_state:x%x, " 1754 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1755 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1756 phba->fcoe_eventtag); 1757 1758 spin_lock_irq(&phba->hbalock); 1759 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1760 spin_unlock_irq(&phba->hbalock); 1761 1762 if (phba->link_state >= LPFC_LINK_UP) { 1763 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1764 "2780 Restart FCF table scan due to " 1765 "pending FCF event:evt_tag_at_scan:x%x, " 1766 "evt_tag_current:x%x\n", 1767 phba->fcoe_eventtag_at_fcf_scan, 1768 phba->fcoe_eventtag); 1769 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1770 } else { 1771 /* 1772 * Do not continue FCF discovery and clear FCF_TS_INPROG 1773 * flag 1774 */ 1775 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1776 "2833 Stop FCF discovery process due to link " 1777 "state change (x%x)\n", phba->link_state); 1778 spin_lock_irq(&phba->hbalock); 1779 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1780 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1781 spin_unlock_irq(&phba->hbalock); 1782 } 1783 1784 /* Unregister the currently registered FCF if required */ 1785 if (unreg_fcf) { 1786 spin_lock_irq(&phba->hbalock); 1787 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1788 spin_unlock_irq(&phba->hbalock); 1789 lpfc_sli4_unregister_fcf(phba); 1790 } 1791 return 1; 1792 } 1793 1794 /** 1795 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1796 * @phba: pointer to lpfc hba data structure. 1797 * @fcf_cnt: number of eligible fcf record seen so far. 1798 * 1799 * This function makes an running random selection decision on FCF record to 1800 * use through a sequence of @fcf_cnt eligible FCF records with equal 1801 * probability. To perform integer manunipulation of random numbers with 1802 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1803 * from prandom_u32() are taken as the random random number generated. 1804 * 1805 * Returns true when outcome is for the newly read FCF record should be 1806 * chosen; otherwise, return false when outcome is for keeping the previously 1807 * chosen FCF record. 1808 **/ 1809 static bool 1810 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1811 { 1812 uint32_t rand_num; 1813 1814 /* Get 16-bit uniform random number */ 1815 rand_num = 0xFFFF & prandom_u32(); 1816 1817 /* Decision with probability 1/fcf_cnt */ 1818 if ((fcf_cnt * rand_num) < 0xFFFF) 1819 return true; 1820 else 1821 return false; 1822 } 1823 1824 /** 1825 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1826 * @phba: pointer to lpfc hba data structure. 1827 * @mboxq: pointer to mailbox object. 1828 * @next_fcf_index: pointer to holder of next fcf index. 1829 * 1830 * This routine parses the non-embedded fcf mailbox command by performing the 1831 * necessarily error checking, non-embedded read FCF record mailbox command 1832 * SGE parsing, and endianness swapping. 1833 * 1834 * Returns the pointer to the new FCF record in the non-embedded mailbox 1835 * command DMA memory if successfully, other NULL. 1836 */ 1837 static struct fcf_record * 1838 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1839 uint16_t *next_fcf_index) 1840 { 1841 void *virt_addr; 1842 struct lpfc_mbx_sge sge; 1843 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1844 uint32_t shdr_status, shdr_add_status, if_type; 1845 union lpfc_sli4_cfg_shdr *shdr; 1846 struct fcf_record *new_fcf_record; 1847 1848 /* Get the first SGE entry from the non-embedded DMA memory. This 1849 * routine only uses a single SGE. 1850 */ 1851 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1852 if (unlikely(!mboxq->sge_array)) { 1853 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1854 "2524 Failed to get the non-embedded SGE " 1855 "virtual address\n"); 1856 return NULL; 1857 } 1858 virt_addr = mboxq->sge_array->addr[0]; 1859 1860 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1861 lpfc_sli_pcimem_bcopy(shdr, shdr, 1862 sizeof(union lpfc_sli4_cfg_shdr)); 1863 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1864 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1865 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1866 if (shdr_status || shdr_add_status) { 1867 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1868 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1869 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1870 "2726 READ_FCF_RECORD Indicates empty " 1871 "FCF table.\n"); 1872 else 1873 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1874 "2521 READ_FCF_RECORD mailbox failed " 1875 "with status x%x add_status x%x, " 1876 "mbx\n", shdr_status, shdr_add_status); 1877 return NULL; 1878 } 1879 1880 /* Interpreting the returned information of the FCF record */ 1881 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1882 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1883 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1884 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1885 new_fcf_record = (struct fcf_record *)(virt_addr + 1886 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1887 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1888 offsetof(struct fcf_record, vlan_bitmap)); 1889 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1890 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1891 1892 return new_fcf_record; 1893 } 1894 1895 /** 1896 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1897 * @phba: pointer to lpfc hba data structure. 1898 * @fcf_record: pointer to the fcf record. 1899 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1900 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1901 * 1902 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1903 * enabled. 1904 **/ 1905 static void 1906 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1907 struct fcf_record *fcf_record, 1908 uint16_t vlan_id, 1909 uint16_t next_fcf_index) 1910 { 1911 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1912 "2764 READ_FCF_RECORD:\n" 1913 "\tFCF_Index : x%x\n" 1914 "\tFCF_Avail : x%x\n" 1915 "\tFCF_Valid : x%x\n" 1916 "\tFCF_SOL : x%x\n" 1917 "\tFIP_Priority : x%x\n" 1918 "\tMAC_Provider : x%x\n" 1919 "\tLowest VLANID : x%x\n" 1920 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1921 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1922 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1923 "\tNext_FCF_Index: x%x\n", 1924 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1925 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1926 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1927 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1928 fcf_record->fip_priority, 1929 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1930 vlan_id, 1931 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1932 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1933 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1934 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1935 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1936 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1937 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1938 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1939 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1940 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1941 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1942 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1943 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1944 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1945 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1946 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1947 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1948 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1949 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1950 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1951 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1952 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1953 next_fcf_index); 1954 } 1955 1956 /** 1957 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1958 * @phba: pointer to lpfc hba data structure. 1959 * @fcf_rec: pointer to an existing FCF record. 1960 * @new_fcf_record: pointer to a new FCF record. 1961 * @new_vlan_id: vlan id from the new FCF record. 1962 * 1963 * This function performs matching test of a new FCF record against an existing 1964 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1965 * will not be used as part of the FCF record matching criteria. 1966 * 1967 * Returns true if all the fields matching, otherwise returns false. 1968 */ 1969 static bool 1970 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1971 struct lpfc_fcf_rec *fcf_rec, 1972 struct fcf_record *new_fcf_record, 1973 uint16_t new_vlan_id) 1974 { 1975 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1976 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1977 return false; 1978 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1979 return false; 1980 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1981 return false; 1982 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1983 return false; 1984 if (fcf_rec->priority != new_fcf_record->fip_priority) 1985 return false; 1986 return true; 1987 } 1988 1989 /** 1990 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1991 * @vport: Pointer to vport object. 1992 * @fcf_index: index to next fcf. 1993 * 1994 * This function processing the roundrobin fcf failover to next fcf index. 1995 * When this function is invoked, there will be a current fcf registered 1996 * for flogi. 1997 * Return: 0 for continue retrying flogi on currently registered fcf; 1998 * 1 for stop flogi on currently registered fcf; 1999 */ 2000 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 2001 { 2002 struct lpfc_hba *phba = vport->phba; 2003 int rc; 2004 2005 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2006 spin_lock_irq(&phba->hbalock); 2007 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2008 spin_unlock_irq(&phba->hbalock); 2009 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2010 "2872 Devloss tmo with no eligible " 2011 "FCF, unregister in-use FCF (x%x) " 2012 "and rescan FCF table\n", 2013 phba->fcf.current_rec.fcf_indx); 2014 lpfc_unregister_fcf_rescan(phba); 2015 goto stop_flogi_current_fcf; 2016 } 2017 /* Mark the end to FLOGI roundrobin failover */ 2018 phba->hba_flag &= ~FCF_RR_INPROG; 2019 /* Allow action to new fcf asynchronous event */ 2020 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2021 spin_unlock_irq(&phba->hbalock); 2022 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2023 "2865 No FCF available, stop roundrobin FCF " 2024 "failover and change port state:x%x/x%x\n", 2025 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2026 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2027 2028 if (!phba->fcf.fcf_redisc_attempted) { 2029 lpfc_unregister_fcf(phba); 2030 2031 rc = lpfc_sli4_redisc_fcf_table(phba); 2032 if (!rc) { 2033 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2034 "3195 Rediscover FCF table\n"); 2035 phba->fcf.fcf_redisc_attempted = 1; 2036 lpfc_sli4_clear_fcf_rr_bmask(phba); 2037 } else { 2038 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2039 "3196 Rediscover FCF table " 2040 "failed. Status:x%x\n", rc); 2041 } 2042 } else { 2043 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2044 "3197 Already rediscover FCF table " 2045 "attempted. No more retry\n"); 2046 } 2047 goto stop_flogi_current_fcf; 2048 } else { 2049 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2050 "2794 Try FLOGI roundrobin FCF failover to " 2051 "(x%x)\n", fcf_index); 2052 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2053 if (rc) 2054 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2055 "2761 FLOGI roundrobin FCF failover " 2056 "failed (rc:x%x) to read FCF (x%x)\n", 2057 rc, phba->fcf.current_rec.fcf_indx); 2058 else 2059 goto stop_flogi_current_fcf; 2060 } 2061 return 0; 2062 2063 stop_flogi_current_fcf: 2064 lpfc_can_disctmo(vport); 2065 return 1; 2066 } 2067 2068 /** 2069 * lpfc_sli4_fcf_pri_list_del 2070 * @phba: pointer to lpfc hba data structure. 2071 * @fcf_index the index of the fcf record to delete 2072 * This routine checks the on list flag of the fcf_index to be deleted. 2073 * If it is one the list then it is removed from the list, and the flag 2074 * is cleared. This routine grab the hbalock before removing the fcf 2075 * record from the list. 2076 **/ 2077 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2078 uint16_t fcf_index) 2079 { 2080 struct lpfc_fcf_pri *new_fcf_pri; 2081 2082 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2083 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2084 "3058 deleting idx x%x pri x%x flg x%x\n", 2085 fcf_index, new_fcf_pri->fcf_rec.priority, 2086 new_fcf_pri->fcf_rec.flag); 2087 spin_lock_irq(&phba->hbalock); 2088 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2089 if (phba->fcf.current_rec.priority == 2090 new_fcf_pri->fcf_rec.priority) 2091 phba->fcf.eligible_fcf_cnt--; 2092 list_del_init(&new_fcf_pri->list); 2093 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2094 } 2095 spin_unlock_irq(&phba->hbalock); 2096 } 2097 2098 /** 2099 * lpfc_sli4_set_fcf_flogi_fail 2100 * @phba: pointer to lpfc hba data structure. 2101 * @fcf_index the index of the fcf record to update 2102 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2103 * flag so the the round robin slection for the particular priority level 2104 * will try a different fcf record that does not have this bit set. 2105 * If the fcf record is re-read for any reason this flag is cleared brfore 2106 * adding it to the priority list. 2107 **/ 2108 void 2109 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2110 { 2111 struct lpfc_fcf_pri *new_fcf_pri; 2112 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2113 spin_lock_irq(&phba->hbalock); 2114 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2115 spin_unlock_irq(&phba->hbalock); 2116 } 2117 2118 /** 2119 * lpfc_sli4_fcf_pri_list_add 2120 * @phba: pointer to lpfc hba data structure. 2121 * @fcf_index the index of the fcf record to add 2122 * This routine checks the priority of the fcf_index to be added. 2123 * If it is a lower priority than the current head of the fcf_pri list 2124 * then it is added to the list in the right order. 2125 * If it is the same priority as the current head of the list then it 2126 * is added to the head of the list and its bit in the rr_bmask is set. 2127 * If the fcf_index to be added is of a higher priority than the current 2128 * head of the list then the rr_bmask is cleared, its bit is set in the 2129 * rr_bmask and it is added to the head of the list. 2130 * returns: 2131 * 0=success 1=failure 2132 **/ 2133 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2134 uint16_t fcf_index, 2135 struct fcf_record *new_fcf_record) 2136 { 2137 uint16_t current_fcf_pri; 2138 uint16_t last_index; 2139 struct lpfc_fcf_pri *fcf_pri; 2140 struct lpfc_fcf_pri *next_fcf_pri; 2141 struct lpfc_fcf_pri *new_fcf_pri; 2142 int ret; 2143 2144 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2145 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2146 "3059 adding idx x%x pri x%x flg x%x\n", 2147 fcf_index, new_fcf_record->fip_priority, 2148 new_fcf_pri->fcf_rec.flag); 2149 spin_lock_irq(&phba->hbalock); 2150 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2151 list_del_init(&new_fcf_pri->list); 2152 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2153 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2154 if (list_empty(&phba->fcf.fcf_pri_list)) { 2155 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2156 ret = lpfc_sli4_fcf_rr_index_set(phba, 2157 new_fcf_pri->fcf_rec.fcf_index); 2158 goto out; 2159 } 2160 2161 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2162 LPFC_SLI4_FCF_TBL_INDX_MAX); 2163 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2164 ret = 0; /* Empty rr list */ 2165 goto out; 2166 } 2167 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2168 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2169 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2170 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2171 memset(phba->fcf.fcf_rr_bmask, 0, 2172 sizeof(*phba->fcf.fcf_rr_bmask)); 2173 /* fcfs_at_this_priority_level = 1; */ 2174 phba->fcf.eligible_fcf_cnt = 1; 2175 } else 2176 /* fcfs_at_this_priority_level++; */ 2177 phba->fcf.eligible_fcf_cnt++; 2178 ret = lpfc_sli4_fcf_rr_index_set(phba, 2179 new_fcf_pri->fcf_rec.fcf_index); 2180 goto out; 2181 } 2182 2183 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2184 &phba->fcf.fcf_pri_list, list) { 2185 if (new_fcf_pri->fcf_rec.priority <= 2186 fcf_pri->fcf_rec.priority) { 2187 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2188 list_add(&new_fcf_pri->list, 2189 &phba->fcf.fcf_pri_list); 2190 else 2191 list_add(&new_fcf_pri->list, 2192 &((struct lpfc_fcf_pri *) 2193 fcf_pri->list.prev)->list); 2194 ret = 0; 2195 goto out; 2196 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2197 || new_fcf_pri->fcf_rec.priority < 2198 next_fcf_pri->fcf_rec.priority) { 2199 list_add(&new_fcf_pri->list, &fcf_pri->list); 2200 ret = 0; 2201 goto out; 2202 } 2203 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2204 continue; 2205 2206 } 2207 ret = 1; 2208 out: 2209 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2210 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2211 spin_unlock_irq(&phba->hbalock); 2212 return ret; 2213 } 2214 2215 /** 2216 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2217 * @phba: pointer to lpfc hba data structure. 2218 * @mboxq: pointer to mailbox object. 2219 * 2220 * This function iterates through all the fcf records available in 2221 * HBA and chooses the optimal FCF record for discovery. After finding 2222 * the FCF for discovery it registers the FCF record and kicks start 2223 * discovery. 2224 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2225 * use an FCF record which matches fabric name and mac address of the 2226 * currently used FCF record. 2227 * If the driver supports only one FCF, it will try to use the FCF record 2228 * used by BOOT_BIOS. 2229 */ 2230 void 2231 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2232 { 2233 struct fcf_record *new_fcf_record; 2234 uint32_t boot_flag, addr_mode; 2235 uint16_t fcf_index, next_fcf_index; 2236 struct lpfc_fcf_rec *fcf_rec = NULL; 2237 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2238 bool select_new_fcf; 2239 int rc; 2240 2241 /* If there is pending FCoE event restart FCF table scan */ 2242 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2243 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2244 return; 2245 } 2246 2247 /* Parse the FCF record from the non-embedded mailbox command */ 2248 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2249 &next_fcf_index); 2250 if (!new_fcf_record) { 2251 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2252 "2765 Mailbox command READ_FCF_RECORD " 2253 "failed to retrieve a FCF record.\n"); 2254 /* Let next new FCF event trigger fast failover */ 2255 spin_lock_irq(&phba->hbalock); 2256 phba->hba_flag &= ~FCF_TS_INPROG; 2257 spin_unlock_irq(&phba->hbalock); 2258 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2259 return; 2260 } 2261 2262 /* Check the FCF record against the connection list */ 2263 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2264 &addr_mode, &vlan_id); 2265 2266 /* Log the FCF record information if turned on */ 2267 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2268 next_fcf_index); 2269 2270 /* 2271 * If the fcf record does not match with connect list entries 2272 * read the next entry; otherwise, this is an eligible FCF 2273 * record for roundrobin FCF failover. 2274 */ 2275 if (!rc) { 2276 lpfc_sli4_fcf_pri_list_del(phba, 2277 bf_get(lpfc_fcf_record_fcf_index, 2278 new_fcf_record)); 2279 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2280 "2781 FCF (x%x) failed connection " 2281 "list check: (x%x/x%x/%x)\n", 2282 bf_get(lpfc_fcf_record_fcf_index, 2283 new_fcf_record), 2284 bf_get(lpfc_fcf_record_fcf_avail, 2285 new_fcf_record), 2286 bf_get(lpfc_fcf_record_fcf_valid, 2287 new_fcf_record), 2288 bf_get(lpfc_fcf_record_fcf_sol, 2289 new_fcf_record)); 2290 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2291 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2292 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2293 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2294 phba->fcf.current_rec.fcf_indx) { 2295 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2296 "2862 FCF (x%x) matches property " 2297 "of in-use FCF (x%x)\n", 2298 bf_get(lpfc_fcf_record_fcf_index, 2299 new_fcf_record), 2300 phba->fcf.current_rec.fcf_indx); 2301 goto read_next_fcf; 2302 } 2303 /* 2304 * In case the current in-use FCF record becomes 2305 * invalid/unavailable during FCF discovery that 2306 * was not triggered by fast FCF failover process, 2307 * treat it as fast FCF failover. 2308 */ 2309 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2310 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2311 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2312 "2835 Invalid in-use FCF " 2313 "(x%x), enter FCF failover " 2314 "table scan.\n", 2315 phba->fcf.current_rec.fcf_indx); 2316 spin_lock_irq(&phba->hbalock); 2317 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2318 spin_unlock_irq(&phba->hbalock); 2319 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2320 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2321 LPFC_FCOE_FCF_GET_FIRST); 2322 return; 2323 } 2324 } 2325 goto read_next_fcf; 2326 } else { 2327 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2328 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2329 new_fcf_record); 2330 if (rc) 2331 goto read_next_fcf; 2332 } 2333 2334 /* 2335 * If this is not the first FCF discovery of the HBA, use last 2336 * FCF record for the discovery. The condition that a rescan 2337 * matches the in-use FCF record: fabric name, switch name, mac 2338 * address, and vlan_id. 2339 */ 2340 spin_lock_irq(&phba->hbalock); 2341 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2342 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2343 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2344 new_fcf_record, vlan_id)) { 2345 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2346 phba->fcf.current_rec.fcf_indx) { 2347 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2348 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2349 /* Stop FCF redisc wait timer */ 2350 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2351 phba); 2352 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2353 /* Fast failover, mark completed */ 2354 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2355 spin_unlock_irq(&phba->hbalock); 2356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2357 "2836 New FCF matches in-use " 2358 "FCF (x%x), port_state:x%x, " 2359 "fc_flag:x%x\n", 2360 phba->fcf.current_rec.fcf_indx, 2361 phba->pport->port_state, 2362 phba->pport->fc_flag); 2363 goto out; 2364 } else 2365 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2366 "2863 New FCF (x%x) matches " 2367 "property of in-use FCF (x%x)\n", 2368 bf_get(lpfc_fcf_record_fcf_index, 2369 new_fcf_record), 2370 phba->fcf.current_rec.fcf_indx); 2371 } 2372 /* 2373 * Read next FCF record from HBA searching for the matching 2374 * with in-use record only if not during the fast failover 2375 * period. In case of fast failover period, it shall try to 2376 * determine whether the FCF record just read should be the 2377 * next candidate. 2378 */ 2379 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2380 spin_unlock_irq(&phba->hbalock); 2381 goto read_next_fcf; 2382 } 2383 } 2384 /* 2385 * Update on failover FCF record only if it's in FCF fast-failover 2386 * period; otherwise, update on current FCF record. 2387 */ 2388 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2389 fcf_rec = &phba->fcf.failover_rec; 2390 else 2391 fcf_rec = &phba->fcf.current_rec; 2392 2393 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2394 /* 2395 * If the driver FCF record does not have boot flag 2396 * set and new hba fcf record has boot flag set, use 2397 * the new hba fcf record. 2398 */ 2399 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2400 /* Choose this FCF record */ 2401 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2402 "2837 Update current FCF record " 2403 "(x%x) with new FCF record (x%x)\n", 2404 fcf_rec->fcf_indx, 2405 bf_get(lpfc_fcf_record_fcf_index, 2406 new_fcf_record)); 2407 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2408 addr_mode, vlan_id, BOOT_ENABLE); 2409 spin_unlock_irq(&phba->hbalock); 2410 goto read_next_fcf; 2411 } 2412 /* 2413 * If the driver FCF record has boot flag set and the 2414 * new hba FCF record does not have boot flag, read 2415 * the next FCF record. 2416 */ 2417 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2418 spin_unlock_irq(&phba->hbalock); 2419 goto read_next_fcf; 2420 } 2421 /* 2422 * If the new hba FCF record has lower priority value 2423 * than the driver FCF record, use the new record. 2424 */ 2425 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2426 /* Choose the new FCF record with lower priority */ 2427 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2428 "2838 Update current FCF record " 2429 "(x%x) with new FCF record (x%x)\n", 2430 fcf_rec->fcf_indx, 2431 bf_get(lpfc_fcf_record_fcf_index, 2432 new_fcf_record)); 2433 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2434 addr_mode, vlan_id, 0); 2435 /* Reset running random FCF selection count */ 2436 phba->fcf.eligible_fcf_cnt = 1; 2437 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2438 /* Update running random FCF selection count */ 2439 phba->fcf.eligible_fcf_cnt++; 2440 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2441 phba->fcf.eligible_fcf_cnt); 2442 if (select_new_fcf) { 2443 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2444 "2839 Update current FCF record " 2445 "(x%x) with new FCF record (x%x)\n", 2446 fcf_rec->fcf_indx, 2447 bf_get(lpfc_fcf_record_fcf_index, 2448 new_fcf_record)); 2449 /* Choose the new FCF by random selection */ 2450 __lpfc_update_fcf_record(phba, fcf_rec, 2451 new_fcf_record, 2452 addr_mode, vlan_id, 0); 2453 } 2454 } 2455 spin_unlock_irq(&phba->hbalock); 2456 goto read_next_fcf; 2457 } 2458 /* 2459 * This is the first suitable FCF record, choose this record for 2460 * initial best-fit FCF. 2461 */ 2462 if (fcf_rec) { 2463 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2464 "2840 Update initial FCF candidate " 2465 "with FCF (x%x)\n", 2466 bf_get(lpfc_fcf_record_fcf_index, 2467 new_fcf_record)); 2468 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2469 addr_mode, vlan_id, (boot_flag ? 2470 BOOT_ENABLE : 0)); 2471 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2472 /* Setup initial running random FCF selection count */ 2473 phba->fcf.eligible_fcf_cnt = 1; 2474 } 2475 spin_unlock_irq(&phba->hbalock); 2476 goto read_next_fcf; 2477 2478 read_next_fcf: 2479 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2480 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2481 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2482 /* 2483 * Case of FCF fast failover scan 2484 */ 2485 2486 /* 2487 * It has not found any suitable FCF record, cancel 2488 * FCF scan inprogress, and do nothing 2489 */ 2490 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2491 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2492 "2782 No suitable FCF found: " 2493 "(x%x/x%x)\n", 2494 phba->fcoe_eventtag_at_fcf_scan, 2495 bf_get(lpfc_fcf_record_fcf_index, 2496 new_fcf_record)); 2497 spin_lock_irq(&phba->hbalock); 2498 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2499 phba->hba_flag &= ~FCF_TS_INPROG; 2500 spin_unlock_irq(&phba->hbalock); 2501 /* Unregister in-use FCF and rescan */ 2502 lpfc_printf_log(phba, KERN_INFO, 2503 LOG_FIP, 2504 "2864 On devloss tmo " 2505 "unreg in-use FCF and " 2506 "rescan FCF table\n"); 2507 lpfc_unregister_fcf_rescan(phba); 2508 return; 2509 } 2510 /* 2511 * Let next new FCF event trigger fast failover 2512 */ 2513 phba->hba_flag &= ~FCF_TS_INPROG; 2514 spin_unlock_irq(&phba->hbalock); 2515 return; 2516 } 2517 /* 2518 * It has found a suitable FCF record that is not 2519 * the same as in-use FCF record, unregister the 2520 * in-use FCF record, replace the in-use FCF record 2521 * with the new FCF record, mark FCF fast failover 2522 * completed, and then start register the new FCF 2523 * record. 2524 */ 2525 2526 /* Unregister the current in-use FCF record */ 2527 lpfc_unregister_fcf(phba); 2528 2529 /* Replace in-use record with the new record */ 2530 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2531 "2842 Replace in-use FCF (x%x) " 2532 "with failover FCF (x%x)\n", 2533 phba->fcf.current_rec.fcf_indx, 2534 phba->fcf.failover_rec.fcf_indx); 2535 memcpy(&phba->fcf.current_rec, 2536 &phba->fcf.failover_rec, 2537 sizeof(struct lpfc_fcf_rec)); 2538 /* 2539 * Mark the fast FCF failover rediscovery completed 2540 * and the start of the first round of the roundrobin 2541 * FCF failover. 2542 */ 2543 spin_lock_irq(&phba->hbalock); 2544 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2545 spin_unlock_irq(&phba->hbalock); 2546 /* Register to the new FCF record */ 2547 lpfc_register_fcf(phba); 2548 } else { 2549 /* 2550 * In case of transaction period to fast FCF failover, 2551 * do nothing when search to the end of the FCF table. 2552 */ 2553 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2554 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2555 return; 2556 2557 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2558 phba->fcf.fcf_flag & FCF_IN_USE) { 2559 /* 2560 * In case the current in-use FCF record no 2561 * longer existed during FCF discovery that 2562 * was not triggered by fast FCF failover 2563 * process, treat it as fast FCF failover. 2564 */ 2565 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2566 "2841 In-use FCF record (x%x) " 2567 "not reported, entering fast " 2568 "FCF failover mode scanning.\n", 2569 phba->fcf.current_rec.fcf_indx); 2570 spin_lock_irq(&phba->hbalock); 2571 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2572 spin_unlock_irq(&phba->hbalock); 2573 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2574 LPFC_FCOE_FCF_GET_FIRST); 2575 return; 2576 } 2577 /* Register to the new FCF record */ 2578 lpfc_register_fcf(phba); 2579 } 2580 } else 2581 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2582 return; 2583 2584 out: 2585 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2586 lpfc_register_fcf(phba); 2587 2588 return; 2589 } 2590 2591 /** 2592 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2593 * @phba: pointer to lpfc hba data structure. 2594 * @mboxq: pointer to mailbox object. 2595 * 2596 * This is the callback function for FLOGI failure roundrobin FCF failover 2597 * read FCF record mailbox command from the eligible FCF record bmask for 2598 * performing the failover. If the FCF read back is not valid/available, it 2599 * fails through to retrying FLOGI to the currently registered FCF again. 2600 * Otherwise, if the FCF read back is valid and available, it will set the 2601 * newly read FCF record to the failover FCF record, unregister currently 2602 * registered FCF record, copy the failover FCF record to the current 2603 * FCF record, and then register the current FCF record before proceeding 2604 * to trying FLOGI on the new failover FCF. 2605 */ 2606 void 2607 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2608 { 2609 struct fcf_record *new_fcf_record; 2610 uint32_t boot_flag, addr_mode; 2611 uint16_t next_fcf_index, fcf_index; 2612 uint16_t current_fcf_index; 2613 uint16_t vlan_id; 2614 int rc; 2615 2616 /* If link state is not up, stop the roundrobin failover process */ 2617 if (phba->link_state < LPFC_LINK_UP) { 2618 spin_lock_irq(&phba->hbalock); 2619 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2620 phba->hba_flag &= ~FCF_RR_INPROG; 2621 spin_unlock_irq(&phba->hbalock); 2622 goto out; 2623 } 2624 2625 /* Parse the FCF record from the non-embedded mailbox command */ 2626 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2627 &next_fcf_index); 2628 if (!new_fcf_record) { 2629 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2630 "2766 Mailbox command READ_FCF_RECORD " 2631 "failed to retrieve a FCF record. " 2632 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2633 phba->fcf.fcf_flag); 2634 lpfc_unregister_fcf_rescan(phba); 2635 goto out; 2636 } 2637 2638 /* Get the needed parameters from FCF record */ 2639 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2640 &addr_mode, &vlan_id); 2641 2642 /* Log the FCF record information if turned on */ 2643 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2644 next_fcf_index); 2645 2646 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2647 if (!rc) { 2648 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2649 "2848 Remove ineligible FCF (x%x) from " 2650 "from roundrobin bmask\n", fcf_index); 2651 /* Clear roundrobin bmask bit for ineligible FCF */ 2652 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2653 /* Perform next round of roundrobin FCF failover */ 2654 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2655 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2656 if (rc) 2657 goto out; 2658 goto error_out; 2659 } 2660 2661 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2662 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2663 "2760 Perform FLOGI roundrobin FCF failover: " 2664 "FCF (x%x) back to FCF (x%x)\n", 2665 phba->fcf.current_rec.fcf_indx, fcf_index); 2666 /* Wait 500 ms before retrying FLOGI to current FCF */ 2667 msleep(500); 2668 lpfc_issue_init_vfi(phba->pport); 2669 goto out; 2670 } 2671 2672 /* Upload new FCF record to the failover FCF record */ 2673 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2674 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2675 phba->fcf.failover_rec.fcf_indx, fcf_index); 2676 spin_lock_irq(&phba->hbalock); 2677 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2678 new_fcf_record, addr_mode, vlan_id, 2679 (boot_flag ? BOOT_ENABLE : 0)); 2680 spin_unlock_irq(&phba->hbalock); 2681 2682 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2683 2684 /* Unregister the current in-use FCF record */ 2685 lpfc_unregister_fcf(phba); 2686 2687 /* Replace in-use record with the new record */ 2688 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2689 sizeof(struct lpfc_fcf_rec)); 2690 2691 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2692 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2693 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2694 2695 error_out: 2696 lpfc_register_fcf(phba); 2697 out: 2698 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2699 } 2700 2701 /** 2702 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2703 * @phba: pointer to lpfc hba data structure. 2704 * @mboxq: pointer to mailbox object. 2705 * 2706 * This is the callback function of read FCF record mailbox command for 2707 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2708 * failover when a new FCF event happened. If the FCF read back is 2709 * valid/available and it passes the connection list check, it updates 2710 * the bmask for the eligible FCF record for roundrobin failover. 2711 */ 2712 void 2713 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2714 { 2715 struct fcf_record *new_fcf_record; 2716 uint32_t boot_flag, addr_mode; 2717 uint16_t fcf_index, next_fcf_index; 2718 uint16_t vlan_id; 2719 int rc; 2720 2721 /* If link state is not up, no need to proceed */ 2722 if (phba->link_state < LPFC_LINK_UP) 2723 goto out; 2724 2725 /* If FCF discovery period is over, no need to proceed */ 2726 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2727 goto out; 2728 2729 /* Parse the FCF record from the non-embedded mailbox command */ 2730 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2731 &next_fcf_index); 2732 if (!new_fcf_record) { 2733 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2734 "2767 Mailbox command READ_FCF_RECORD " 2735 "failed to retrieve a FCF record.\n"); 2736 goto out; 2737 } 2738 2739 /* Check the connection list for eligibility */ 2740 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2741 &addr_mode, &vlan_id); 2742 2743 /* Log the FCF record information if turned on */ 2744 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2745 next_fcf_index); 2746 2747 if (!rc) 2748 goto out; 2749 2750 /* Update the eligible FCF record index bmask */ 2751 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2752 2753 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2754 2755 out: 2756 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2757 } 2758 2759 /** 2760 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2761 * @phba: pointer to lpfc hba data structure. 2762 * @mboxq: pointer to mailbox data structure. 2763 * 2764 * This function handles completion of init vfi mailbox command. 2765 */ 2766 static void 2767 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2768 { 2769 struct lpfc_vport *vport = mboxq->vport; 2770 2771 /* 2772 * VFI not supported on interface type 0, just do the flogi 2773 * Also continue if the VFI is in use - just use the same one. 2774 */ 2775 if (mboxq->u.mb.mbxStatus && 2776 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2777 LPFC_SLI_INTF_IF_TYPE_0) && 2778 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2779 lpfc_printf_vlog(vport, KERN_ERR, 2780 LOG_MBOX, 2781 "2891 Init VFI mailbox failed 0x%x\n", 2782 mboxq->u.mb.mbxStatus); 2783 mempool_free(mboxq, phba->mbox_mem_pool); 2784 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2785 return; 2786 } 2787 2788 lpfc_initial_flogi(vport); 2789 mempool_free(mboxq, phba->mbox_mem_pool); 2790 return; 2791 } 2792 2793 /** 2794 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2795 * @vport: pointer to lpfc_vport data structure. 2796 * 2797 * This function issue a init_vfi mailbox command to initialize the VFI and 2798 * VPI for the physical port. 2799 */ 2800 void 2801 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2802 { 2803 LPFC_MBOXQ_t *mboxq; 2804 int rc; 2805 struct lpfc_hba *phba = vport->phba; 2806 2807 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2808 if (!mboxq) { 2809 lpfc_printf_vlog(vport, KERN_ERR, 2810 LOG_MBOX, "2892 Failed to allocate " 2811 "init_vfi mailbox\n"); 2812 return; 2813 } 2814 lpfc_init_vfi(mboxq, vport); 2815 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2816 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2817 if (rc == MBX_NOT_FINISHED) { 2818 lpfc_printf_vlog(vport, KERN_ERR, 2819 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2820 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2821 } 2822 } 2823 2824 /** 2825 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2826 * @phba: pointer to lpfc hba data structure. 2827 * @mboxq: pointer to mailbox data structure. 2828 * 2829 * This function handles completion of init vpi mailbox command. 2830 */ 2831 void 2832 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2833 { 2834 struct lpfc_vport *vport = mboxq->vport; 2835 struct lpfc_nodelist *ndlp; 2836 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2837 2838 if (mboxq->u.mb.mbxStatus) { 2839 lpfc_printf_vlog(vport, KERN_ERR, 2840 LOG_MBOX, 2841 "2609 Init VPI mailbox failed 0x%x\n", 2842 mboxq->u.mb.mbxStatus); 2843 mempool_free(mboxq, phba->mbox_mem_pool); 2844 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2845 return; 2846 } 2847 spin_lock_irq(shost->host_lock); 2848 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2849 spin_unlock_irq(shost->host_lock); 2850 2851 /* If this port is physical port or FDISC is done, do reg_vpi */ 2852 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2853 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2854 if (!ndlp) 2855 lpfc_printf_vlog(vport, KERN_ERR, 2856 LOG_DISCOVERY, 2857 "2731 Cannot find fabric " 2858 "controller node\n"); 2859 else 2860 lpfc_register_new_vport(phba, vport, ndlp); 2861 mempool_free(mboxq, phba->mbox_mem_pool); 2862 return; 2863 } 2864 2865 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2866 lpfc_initial_fdisc(vport); 2867 else { 2868 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2869 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2870 "2606 No NPIV Fabric support\n"); 2871 } 2872 mempool_free(mboxq, phba->mbox_mem_pool); 2873 return; 2874 } 2875 2876 /** 2877 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2878 * @vport: pointer to lpfc_vport data structure. 2879 * 2880 * This function issue a init_vpi mailbox command to initialize 2881 * VPI for the vport. 2882 */ 2883 void 2884 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2885 { 2886 LPFC_MBOXQ_t *mboxq; 2887 int rc, vpi; 2888 2889 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2890 vpi = lpfc_alloc_vpi(vport->phba); 2891 if (!vpi) { 2892 lpfc_printf_vlog(vport, KERN_ERR, 2893 LOG_MBOX, 2894 "3303 Failed to obtain vport vpi\n"); 2895 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2896 return; 2897 } 2898 vport->vpi = vpi; 2899 } 2900 2901 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2902 if (!mboxq) { 2903 lpfc_printf_vlog(vport, KERN_ERR, 2904 LOG_MBOX, "2607 Failed to allocate " 2905 "init_vpi mailbox\n"); 2906 return; 2907 } 2908 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2909 mboxq->vport = vport; 2910 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2911 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2912 if (rc == MBX_NOT_FINISHED) { 2913 lpfc_printf_vlog(vport, KERN_ERR, 2914 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2915 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2916 } 2917 } 2918 2919 /** 2920 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2921 * @phba: pointer to lpfc hba data structure. 2922 * 2923 * This function loops through the list of vports on the @phba and issues an 2924 * FDISC if possible. 2925 */ 2926 void 2927 lpfc_start_fdiscs(struct lpfc_hba *phba) 2928 { 2929 struct lpfc_vport **vports; 2930 int i; 2931 2932 vports = lpfc_create_vport_work_array(phba); 2933 if (vports != NULL) { 2934 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2935 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2936 continue; 2937 /* There are no vpi for this vport */ 2938 if (vports[i]->vpi > phba->max_vpi) { 2939 lpfc_vport_set_state(vports[i], 2940 FC_VPORT_FAILED); 2941 continue; 2942 } 2943 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2944 lpfc_vport_set_state(vports[i], 2945 FC_VPORT_LINKDOWN); 2946 continue; 2947 } 2948 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2949 lpfc_issue_init_vpi(vports[i]); 2950 continue; 2951 } 2952 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2953 lpfc_initial_fdisc(vports[i]); 2954 else { 2955 lpfc_vport_set_state(vports[i], 2956 FC_VPORT_NO_FABRIC_SUPP); 2957 lpfc_printf_vlog(vports[i], KERN_ERR, 2958 LOG_ELS, 2959 "0259 No NPIV " 2960 "Fabric support\n"); 2961 } 2962 } 2963 } 2964 lpfc_destroy_vport_work_array(phba, vports); 2965 } 2966 2967 void 2968 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2969 { 2970 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 2971 struct lpfc_vport *vport = mboxq->vport; 2972 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2973 2974 /* 2975 * VFI not supported for interface type 0, so ignore any mailbox 2976 * error (except VFI in use) and continue with the discovery. 2977 */ 2978 if (mboxq->u.mb.mbxStatus && 2979 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2980 LPFC_SLI_INTF_IF_TYPE_0) && 2981 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2982 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2983 "2018 REG_VFI mbxStatus error x%x " 2984 "HBA state x%x\n", 2985 mboxq->u.mb.mbxStatus, vport->port_state); 2986 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2987 /* FLOGI failed, use loop map to make discovery list */ 2988 lpfc_disc_list_loopmap(vport); 2989 /* Start discovery */ 2990 lpfc_disc_start(vport); 2991 goto out_free_mem; 2992 } 2993 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2994 goto out_free_mem; 2995 } 2996 2997 /* If the VFI is already registered, there is nothing else to do 2998 * Unless this was a VFI update and we are in PT2PT mode, then 2999 * we should drop through to set the port state to ready. 3000 */ 3001 if (vport->fc_flag & FC_VFI_REGISTERED) 3002 if (!(phba->sli_rev == LPFC_SLI_REV4 && 3003 vport->fc_flag & FC_PT2PT)) 3004 goto out_free_mem; 3005 3006 /* The VPI is implicitly registered when the VFI is registered */ 3007 spin_lock_irq(shost->host_lock); 3008 vport->vpi_state |= LPFC_VPI_REGISTERED; 3009 vport->fc_flag |= FC_VFI_REGISTERED; 3010 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3011 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3012 spin_unlock_irq(shost->host_lock); 3013 3014 /* In case SLI4 FC loopback test, we are ready */ 3015 if ((phba->sli_rev == LPFC_SLI_REV4) && 3016 (phba->link_flag & LS_LOOPBACK_MODE)) { 3017 phba->link_state = LPFC_HBA_READY; 3018 goto out_free_mem; 3019 } 3020 3021 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3022 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3023 "alpacnt:%d LinkState:%x topology:%x\n", 3024 vport->port_state, vport->fc_flag, vport->fc_myDID, 3025 vport->phba->alpa_map[0], 3026 phba->link_state, phba->fc_topology); 3027 3028 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3029 /* 3030 * For private loop or for NPort pt2pt, 3031 * just start discovery and we are done. 3032 */ 3033 if ((vport->fc_flag & FC_PT2PT) || 3034 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3035 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3036 3037 /* Use loop map to make discovery list */ 3038 lpfc_disc_list_loopmap(vport); 3039 /* Start discovery */ 3040 if (vport->fc_flag & FC_PT2PT) 3041 vport->port_state = LPFC_VPORT_READY; 3042 else 3043 lpfc_disc_start(vport); 3044 } else { 3045 lpfc_start_fdiscs(phba); 3046 lpfc_do_scr_ns_plogi(phba, vport); 3047 } 3048 } 3049 3050 out_free_mem: 3051 mempool_free(mboxq, phba->mbox_mem_pool); 3052 if (dmabuf) { 3053 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3054 kfree(dmabuf); 3055 } 3056 return; 3057 } 3058 3059 static void 3060 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3061 { 3062 MAILBOX_t *mb = &pmb->u.mb; 3063 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3064 struct lpfc_vport *vport = pmb->vport; 3065 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3066 struct serv_parm *sp = &vport->fc_sparam; 3067 uint32_t ed_tov; 3068 3069 /* Check for error */ 3070 if (mb->mbxStatus) { 3071 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3072 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3073 "0319 READ_SPARAM mbxStatus error x%x " 3074 "hba state x%x>\n", 3075 mb->mbxStatus, vport->port_state); 3076 lpfc_linkdown(phba); 3077 goto out; 3078 } 3079 3080 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3081 sizeof (struct serv_parm)); 3082 3083 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3084 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3085 ed_tov = (ed_tov + 999999) / 1000000; 3086 3087 phba->fc_edtov = ed_tov; 3088 phba->fc_ratov = (2 * ed_tov) / 1000; 3089 if (phba->fc_ratov < FF_DEF_RATOV) { 3090 /* RA_TOV should be atleast 10sec for initial flogi */ 3091 phba->fc_ratov = FF_DEF_RATOV; 3092 } 3093 3094 lpfc_update_vport_wwn(vport); 3095 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3096 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3097 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3098 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3099 } 3100 3101 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3102 kfree(mp); 3103 mempool_free(pmb, phba->mbox_mem_pool); 3104 3105 /* Check if sending the FLOGI is being deferred to after we get 3106 * up to date CSPs from MBX_READ_SPARAM. 3107 */ 3108 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3109 lpfc_initial_flogi(vport); 3110 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3111 } 3112 return; 3113 3114 out: 3115 pmb->ctx_buf = NULL; 3116 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3117 kfree(mp); 3118 lpfc_issue_clear_la(phba, vport); 3119 mempool_free(pmb, phba->mbox_mem_pool); 3120 return; 3121 } 3122 3123 static void 3124 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3125 { 3126 struct lpfc_vport *vport = phba->pport; 3127 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3128 struct Scsi_Host *shost; 3129 int i; 3130 struct lpfc_dmabuf *mp; 3131 int rc; 3132 struct fcf_record *fcf_record; 3133 uint32_t fc_flags = 0; 3134 unsigned long iflags; 3135 3136 spin_lock_irqsave(&phba->hbalock, iflags); 3137 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3138 3139 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3140 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3141 case LPFC_LINK_SPEED_1GHZ: 3142 case LPFC_LINK_SPEED_2GHZ: 3143 case LPFC_LINK_SPEED_4GHZ: 3144 case LPFC_LINK_SPEED_8GHZ: 3145 case LPFC_LINK_SPEED_10GHZ: 3146 case LPFC_LINK_SPEED_16GHZ: 3147 case LPFC_LINK_SPEED_32GHZ: 3148 case LPFC_LINK_SPEED_64GHZ: 3149 case LPFC_LINK_SPEED_128GHZ: 3150 break; 3151 default: 3152 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3153 break; 3154 } 3155 } 3156 3157 if (phba->fc_topology && 3158 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3159 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3160 "3314 Toplogy changed was 0x%x is 0x%x\n", 3161 phba->fc_topology, 3162 bf_get(lpfc_mbx_read_top_topology, la)); 3163 phba->fc_topology_changed = 1; 3164 } 3165 3166 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3167 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3168 3169 shost = lpfc_shost_from_vport(vport); 3170 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3171 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3172 3173 /* if npiv is enabled and this adapter supports npiv log 3174 * a message that npiv is not supported in this topology 3175 */ 3176 if (phba->cfg_enable_npiv && phba->max_vpi) 3177 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3178 "1309 Link Up Event npiv not supported in loop " 3179 "topology\n"); 3180 /* Get Loop Map information */ 3181 if (bf_get(lpfc_mbx_read_top_il, la)) 3182 fc_flags |= FC_LBIT; 3183 3184 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3185 i = la->lilpBde64.tus.f.bdeSize; 3186 3187 if (i == 0) { 3188 phba->alpa_map[0] = 0; 3189 } else { 3190 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3191 int numalpa, j, k; 3192 union { 3193 uint8_t pamap[16]; 3194 struct { 3195 uint32_t wd1; 3196 uint32_t wd2; 3197 uint32_t wd3; 3198 uint32_t wd4; 3199 } pa; 3200 } un; 3201 numalpa = phba->alpa_map[0]; 3202 j = 0; 3203 while (j < numalpa) { 3204 memset(un.pamap, 0, 16); 3205 for (k = 1; j < numalpa; k++) { 3206 un.pamap[k - 1] = 3207 phba->alpa_map[j + 1]; 3208 j++; 3209 if (k == 16) 3210 break; 3211 } 3212 /* Link Up Event ALPA map */ 3213 lpfc_printf_log(phba, 3214 KERN_WARNING, 3215 LOG_LINK_EVENT, 3216 "1304 Link Up Event " 3217 "ALPA map Data: x%x " 3218 "x%x x%x x%x\n", 3219 un.pa.wd1, un.pa.wd2, 3220 un.pa.wd3, un.pa.wd4); 3221 } 3222 } 3223 } 3224 } else { 3225 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3226 if (phba->max_vpi && phba->cfg_enable_npiv && 3227 (phba->sli_rev >= LPFC_SLI_REV3)) 3228 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3229 } 3230 vport->fc_myDID = phba->fc_pref_DID; 3231 fc_flags |= FC_LBIT; 3232 } 3233 spin_unlock_irqrestore(&phba->hbalock, iflags); 3234 3235 if (fc_flags) { 3236 spin_lock_irqsave(shost->host_lock, iflags); 3237 vport->fc_flag |= fc_flags; 3238 spin_unlock_irqrestore(shost->host_lock, iflags); 3239 } 3240 3241 lpfc_linkup(phba); 3242 sparam_mbox = NULL; 3243 3244 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3245 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3246 if (!cfglink_mbox) 3247 goto out; 3248 vport->port_state = LPFC_LOCAL_CFG_LINK; 3249 lpfc_config_link(phba, cfglink_mbox); 3250 cfglink_mbox->vport = vport; 3251 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3252 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3253 if (rc == MBX_NOT_FINISHED) { 3254 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3255 goto out; 3256 } 3257 } 3258 3259 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3260 if (!sparam_mbox) 3261 goto out; 3262 3263 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3264 if (rc) { 3265 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3266 goto out; 3267 } 3268 sparam_mbox->vport = vport; 3269 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3270 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3271 if (rc == MBX_NOT_FINISHED) { 3272 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3273 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3274 kfree(mp); 3275 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3276 goto out; 3277 } 3278 3279 if (phba->hba_flag & HBA_FCOE_MODE) { 3280 vport->port_state = LPFC_VPORT_UNKNOWN; 3281 /* 3282 * Add the driver's default FCF record at FCF index 0 now. This 3283 * is phase 1 implementation that support FCF index 0 and driver 3284 * defaults. 3285 */ 3286 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3287 fcf_record = kzalloc(sizeof(struct fcf_record), 3288 GFP_KERNEL); 3289 if (unlikely(!fcf_record)) { 3290 lpfc_printf_log(phba, KERN_ERR, 3291 LOG_MBOX | LOG_SLI, 3292 "2554 Could not allocate memory for " 3293 "fcf record\n"); 3294 rc = -ENODEV; 3295 goto out; 3296 } 3297 3298 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3299 LPFC_FCOE_FCF_DEF_INDEX); 3300 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3301 if (unlikely(rc)) { 3302 lpfc_printf_log(phba, KERN_ERR, 3303 LOG_MBOX | LOG_SLI, 3304 "2013 Could not manually add FCF " 3305 "record 0, status %d\n", rc); 3306 rc = -ENODEV; 3307 kfree(fcf_record); 3308 goto out; 3309 } 3310 kfree(fcf_record); 3311 } 3312 /* 3313 * The driver is expected to do FIP/FCF. Call the port 3314 * and get the FCF Table. 3315 */ 3316 spin_lock_irqsave(&phba->hbalock, iflags); 3317 if (phba->hba_flag & FCF_TS_INPROG) { 3318 spin_unlock_irqrestore(&phba->hbalock, iflags); 3319 return; 3320 } 3321 /* This is the initial FCF discovery scan */ 3322 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3323 spin_unlock_irqrestore(&phba->hbalock, iflags); 3324 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3325 "2778 Start FCF table scan at linkup\n"); 3326 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3327 LPFC_FCOE_FCF_GET_FIRST); 3328 if (rc) { 3329 spin_lock_irqsave(&phba->hbalock, iflags); 3330 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3331 spin_unlock_irqrestore(&phba->hbalock, iflags); 3332 goto out; 3333 } 3334 /* Reset FCF roundrobin bmask for new discovery */ 3335 lpfc_sli4_clear_fcf_rr_bmask(phba); 3336 } else { 3337 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 3338 !(phba->link_flag & LS_LOOPBACK_MODE)) 3339 phba->hba_flag |= HBA_DEFER_FLOGI; 3340 } 3341 3342 /* Prepare for LINK up registrations */ 3343 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3344 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3345 init_utsname()->nodename); 3346 return; 3347 out: 3348 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3349 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3350 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3351 vport->port_state, sparam_mbox, cfglink_mbox); 3352 lpfc_issue_clear_la(phba, vport); 3353 return; 3354 } 3355 3356 static void 3357 lpfc_enable_la(struct lpfc_hba *phba) 3358 { 3359 uint32_t control; 3360 struct lpfc_sli *psli = &phba->sli; 3361 spin_lock_irq(&phba->hbalock); 3362 psli->sli_flag |= LPFC_PROCESS_LA; 3363 if (phba->sli_rev <= LPFC_SLI_REV3) { 3364 control = readl(phba->HCregaddr); 3365 control |= HC_LAINT_ENA; 3366 writel(control, phba->HCregaddr); 3367 readl(phba->HCregaddr); /* flush */ 3368 } 3369 spin_unlock_irq(&phba->hbalock); 3370 } 3371 3372 static void 3373 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3374 { 3375 lpfc_linkdown(phba); 3376 lpfc_enable_la(phba); 3377 lpfc_unregister_unused_fcf(phba); 3378 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3379 } 3380 3381 3382 /* 3383 * This routine handles processing a READ_TOPOLOGY mailbox 3384 * command upon completion. It is setup in the LPFC_MBOXQ 3385 * as the completion routine when the command is 3386 * handed off to the SLI layer. SLI4 only. 3387 */ 3388 void 3389 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3390 { 3391 struct lpfc_vport *vport = pmb->vport; 3392 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3393 struct lpfc_mbx_read_top *la; 3394 struct lpfc_sli_ring *pring; 3395 MAILBOX_t *mb = &pmb->u.mb; 3396 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3397 uint8_t attn_type; 3398 unsigned long iflags; 3399 3400 /* Unblock ELS traffic */ 3401 pring = lpfc_phba_elsring(phba); 3402 if (pring) 3403 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3404 3405 /* Check for error */ 3406 if (mb->mbxStatus) { 3407 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3408 "1307 READ_LA mbox error x%x state x%x\n", 3409 mb->mbxStatus, vport->port_state); 3410 lpfc_mbx_issue_link_down(phba); 3411 phba->link_state = LPFC_HBA_ERROR; 3412 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3413 } 3414 3415 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3416 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3417 3418 memcpy(&phba->alpa_map[0], mp->virt, 128); 3419 3420 spin_lock_irqsave(shost->host_lock, iflags); 3421 if (bf_get(lpfc_mbx_read_top_pb, la)) 3422 vport->fc_flag |= FC_BYPASSED_MODE; 3423 else 3424 vport->fc_flag &= ~FC_BYPASSED_MODE; 3425 spin_unlock_irqrestore(shost->host_lock, iflags); 3426 3427 if (phba->fc_eventTag <= la->eventTag) { 3428 phba->fc_stat.LinkMultiEvent++; 3429 if (attn_type == LPFC_ATT_LINK_UP) 3430 if (phba->fc_eventTag != 0) 3431 lpfc_linkdown(phba); 3432 } 3433 3434 phba->fc_eventTag = la->eventTag; 3435 if (phba->sli_rev < LPFC_SLI_REV4) { 3436 spin_lock_irqsave(&phba->hbalock, iflags); 3437 if (bf_get(lpfc_mbx_read_top_mm, la)) 3438 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3439 else 3440 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3441 spin_unlock_irqrestore(&phba->hbalock, iflags); 3442 } 3443 3444 phba->link_events++; 3445 if ((attn_type == LPFC_ATT_LINK_UP) && 3446 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3447 phba->fc_stat.LinkUp++; 3448 if (phba->link_flag & LS_LOOPBACK_MODE) { 3449 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3450 "1306 Link Up Event in loop back mode " 3451 "x%x received Data: x%x x%x x%x x%x\n", 3452 la->eventTag, phba->fc_eventTag, 3453 bf_get(lpfc_mbx_read_top_alpa_granted, 3454 la), 3455 bf_get(lpfc_mbx_read_top_link_spd, la), 3456 phba->alpa_map[0]); 3457 } else { 3458 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3459 "1303 Link Up Event x%x received " 3460 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3461 la->eventTag, phba->fc_eventTag, 3462 bf_get(lpfc_mbx_read_top_alpa_granted, 3463 la), 3464 bf_get(lpfc_mbx_read_top_link_spd, la), 3465 phba->alpa_map[0], 3466 bf_get(lpfc_mbx_read_top_mm, la), 3467 bf_get(lpfc_mbx_read_top_fa, la), 3468 phba->wait_4_mlo_maint_flg); 3469 } 3470 lpfc_mbx_process_link_up(phba, la); 3471 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3472 attn_type == LPFC_ATT_UNEXP_WWPN) { 3473 phba->fc_stat.LinkDown++; 3474 if (phba->link_flag & LS_LOOPBACK_MODE) 3475 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3476 "1308 Link Down Event in loop back mode " 3477 "x%x received " 3478 "Data: x%x x%x x%x\n", 3479 la->eventTag, phba->fc_eventTag, 3480 phba->pport->port_state, vport->fc_flag); 3481 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3482 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3483 "1313 Link Down Unexpected FA WWPN Event x%x " 3484 "received Data: x%x x%x x%x x%x x%x\n", 3485 la->eventTag, phba->fc_eventTag, 3486 phba->pport->port_state, vport->fc_flag, 3487 bf_get(lpfc_mbx_read_top_mm, la), 3488 bf_get(lpfc_mbx_read_top_fa, la)); 3489 else 3490 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3491 "1305 Link Down Event x%x received " 3492 "Data: x%x x%x x%x x%x x%x\n", 3493 la->eventTag, phba->fc_eventTag, 3494 phba->pport->port_state, vport->fc_flag, 3495 bf_get(lpfc_mbx_read_top_mm, la), 3496 bf_get(lpfc_mbx_read_top_fa, la)); 3497 lpfc_mbx_issue_link_down(phba); 3498 } 3499 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3500 attn_type == LPFC_ATT_LINK_UP) { 3501 if (phba->link_state != LPFC_LINK_DOWN) { 3502 phba->fc_stat.LinkDown++; 3503 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3504 "1312 Link Down Event x%x received " 3505 "Data: x%x x%x x%x\n", 3506 la->eventTag, phba->fc_eventTag, 3507 phba->pport->port_state, vport->fc_flag); 3508 lpfc_mbx_issue_link_down(phba); 3509 } else 3510 lpfc_enable_la(phba); 3511 3512 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3513 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3514 "Data: x%x x%x x%x\n", 3515 la->eventTag, phba->fc_eventTag, 3516 phba->pport->port_state, vport->fc_flag); 3517 /* 3518 * The cmnd that triggered this will be waiting for this 3519 * signal. 3520 */ 3521 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3522 if (phba->wait_4_mlo_maint_flg) { 3523 phba->wait_4_mlo_maint_flg = 0; 3524 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3525 } 3526 } 3527 3528 if ((phba->sli_rev < LPFC_SLI_REV4) && 3529 bf_get(lpfc_mbx_read_top_fa, la)) { 3530 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3531 lpfc_issue_clear_la(phba, vport); 3532 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3533 "1311 fa %d\n", 3534 bf_get(lpfc_mbx_read_top_fa, la)); 3535 } 3536 3537 lpfc_mbx_cmpl_read_topology_free_mbuf: 3538 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3539 kfree(mp); 3540 mempool_free(pmb, phba->mbox_mem_pool); 3541 return; 3542 } 3543 3544 /* 3545 * This routine handles processing a REG_LOGIN mailbox 3546 * command upon completion. It is setup in the LPFC_MBOXQ 3547 * as the completion routine when the command is 3548 * handed off to the SLI layer. 3549 */ 3550 void 3551 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3552 { 3553 struct lpfc_vport *vport = pmb->vport; 3554 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3555 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3556 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3557 3558 pmb->ctx_buf = NULL; 3559 pmb->ctx_ndlp = NULL; 3560 3561 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3562 "0002 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 3563 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3564 kref_read(&ndlp->kref), 3565 ndlp->nlp_usg_map, ndlp); 3566 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3567 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3568 3569 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3570 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3571 /* We rcvd a rscn after issuing this 3572 * mbox reg login, we may have cycled 3573 * back through the state and be 3574 * back at reg login state so this 3575 * mbox needs to be ignored becase 3576 * there is another reg login in 3577 * process. 3578 */ 3579 spin_lock_irq(shost->host_lock); 3580 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3581 spin_unlock_irq(shost->host_lock); 3582 3583 /* 3584 * We cannot leave the RPI registered because 3585 * if we go thru discovery again for this ndlp 3586 * a subsequent REG_RPI will fail. 3587 */ 3588 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3589 lpfc_unreg_rpi(vport, ndlp); 3590 } 3591 3592 /* Call state machine */ 3593 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3594 3595 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3596 kfree(mp); 3597 mempool_free(pmb, phba->mbox_mem_pool); 3598 /* decrement the node reference count held for this callback 3599 * function. 3600 */ 3601 lpfc_nlp_put(ndlp); 3602 3603 return; 3604 } 3605 3606 static void 3607 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3608 { 3609 MAILBOX_t *mb = &pmb->u.mb; 3610 struct lpfc_vport *vport = pmb->vport; 3611 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3612 3613 switch (mb->mbxStatus) { 3614 case 0x0011: 3615 case 0x0020: 3616 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3617 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3618 mb->mbxStatus); 3619 break; 3620 /* If VPI is busy, reset the HBA */ 3621 case 0x9700: 3622 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3623 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3624 vport->vpi, mb->mbxStatus); 3625 if (!(phba->pport->load_flag & FC_UNLOADING)) 3626 lpfc_workq_post_event(phba, NULL, NULL, 3627 LPFC_EVT_RESET_HBA); 3628 } 3629 spin_lock_irq(shost->host_lock); 3630 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3631 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3632 spin_unlock_irq(shost->host_lock); 3633 vport->unreg_vpi_cmpl = VPORT_OK; 3634 mempool_free(pmb, phba->mbox_mem_pool); 3635 lpfc_cleanup_vports_rrqs(vport, NULL); 3636 /* 3637 * This shost reference might have been taken at the beginning of 3638 * lpfc_vport_delete() 3639 */ 3640 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3641 scsi_host_put(shost); 3642 } 3643 3644 int 3645 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3646 { 3647 struct lpfc_hba *phba = vport->phba; 3648 LPFC_MBOXQ_t *mbox; 3649 int rc; 3650 3651 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3652 if (!mbox) 3653 return 1; 3654 3655 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3656 mbox->vport = vport; 3657 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3658 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3659 if (rc == MBX_NOT_FINISHED) { 3660 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3661 "1800 Could not issue unreg_vpi\n"); 3662 mempool_free(mbox, phba->mbox_mem_pool); 3663 vport->unreg_vpi_cmpl = VPORT_ERROR; 3664 return rc; 3665 } 3666 return 0; 3667 } 3668 3669 static void 3670 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3671 { 3672 struct lpfc_vport *vport = pmb->vport; 3673 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3674 MAILBOX_t *mb = &pmb->u.mb; 3675 3676 switch (mb->mbxStatus) { 3677 case 0x0011: 3678 case 0x9601: 3679 case 0x9602: 3680 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3681 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3682 mb->mbxStatus); 3683 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3684 spin_lock_irq(shost->host_lock); 3685 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3686 spin_unlock_irq(shost->host_lock); 3687 vport->fc_myDID = 0; 3688 3689 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3690 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3691 if (phba->nvmet_support) 3692 lpfc_nvmet_update_targetport(phba); 3693 else 3694 lpfc_nvme_update_localport(vport); 3695 } 3696 goto out; 3697 } 3698 3699 spin_lock_irq(shost->host_lock); 3700 vport->vpi_state |= LPFC_VPI_REGISTERED; 3701 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3702 spin_unlock_irq(shost->host_lock); 3703 vport->num_disc_nodes = 0; 3704 /* go thru NPR list and issue ELS PLOGIs */ 3705 if (vport->fc_npr_cnt) 3706 lpfc_els_disc_plogi(vport); 3707 3708 if (!vport->num_disc_nodes) { 3709 spin_lock_irq(shost->host_lock); 3710 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3711 spin_unlock_irq(shost->host_lock); 3712 lpfc_can_disctmo(vport); 3713 } 3714 vport->port_state = LPFC_VPORT_READY; 3715 3716 out: 3717 mempool_free(pmb, phba->mbox_mem_pool); 3718 return; 3719 } 3720 3721 /** 3722 * lpfc_create_static_vport - Read HBA config region to create static vports. 3723 * @phba: pointer to lpfc hba data structure. 3724 * 3725 * This routine issue a DUMP mailbox command for config region 22 to get 3726 * the list of static vports to be created. The function create vports 3727 * based on the information returned from the HBA. 3728 **/ 3729 void 3730 lpfc_create_static_vport(struct lpfc_hba *phba) 3731 { 3732 LPFC_MBOXQ_t *pmb = NULL; 3733 MAILBOX_t *mb; 3734 struct static_vport_info *vport_info; 3735 int mbx_wait_rc = 0, i; 3736 struct fc_vport_identifiers vport_id; 3737 struct fc_vport *new_fc_vport; 3738 struct Scsi_Host *shost; 3739 struct lpfc_vport *vport; 3740 uint16_t offset = 0; 3741 uint8_t *vport_buff; 3742 struct lpfc_dmabuf *mp; 3743 uint32_t byte_count = 0; 3744 3745 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3746 if (!pmb) { 3747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3748 "0542 lpfc_create_static_vport failed to" 3749 " allocate mailbox memory\n"); 3750 return; 3751 } 3752 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3753 mb = &pmb->u.mb; 3754 3755 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3756 if (!vport_info) { 3757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3758 "0543 lpfc_create_static_vport failed to" 3759 " allocate vport_info\n"); 3760 mempool_free(pmb, phba->mbox_mem_pool); 3761 return; 3762 } 3763 3764 vport_buff = (uint8_t *) vport_info; 3765 do { 3766 /* free dma buffer from previous round */ 3767 if (pmb->ctx_buf) { 3768 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3769 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3770 kfree(mp); 3771 } 3772 if (lpfc_dump_static_vport(phba, pmb, offset)) 3773 goto out; 3774 3775 pmb->vport = phba->pport; 3776 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3777 LPFC_MBOX_TMO); 3778 3779 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3780 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3781 "0544 lpfc_create_static_vport failed to" 3782 " issue dump mailbox command ret 0x%x " 3783 "status 0x%x\n", 3784 mbx_wait_rc, mb->mbxStatus); 3785 goto out; 3786 } 3787 3788 if (phba->sli_rev == LPFC_SLI_REV4) { 3789 byte_count = pmb->u.mqe.un.mb_words[5]; 3790 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3791 if (byte_count > sizeof(struct static_vport_info) - 3792 offset) 3793 byte_count = sizeof(struct static_vport_info) 3794 - offset; 3795 memcpy(vport_buff + offset, mp->virt, byte_count); 3796 offset += byte_count; 3797 } else { 3798 if (mb->un.varDmp.word_cnt > 3799 sizeof(struct static_vport_info) - offset) 3800 mb->un.varDmp.word_cnt = 3801 sizeof(struct static_vport_info) 3802 - offset; 3803 byte_count = mb->un.varDmp.word_cnt; 3804 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3805 vport_buff + offset, 3806 byte_count); 3807 3808 offset += byte_count; 3809 } 3810 3811 } while (byte_count && 3812 offset < sizeof(struct static_vport_info)); 3813 3814 3815 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3816 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3817 != VPORT_INFO_REV)) { 3818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3819 "0545 lpfc_create_static_vport bad" 3820 " information header 0x%x 0x%x\n", 3821 le32_to_cpu(vport_info->signature), 3822 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3823 3824 goto out; 3825 } 3826 3827 shost = lpfc_shost_from_vport(phba->pport); 3828 3829 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3830 memset(&vport_id, 0, sizeof(vport_id)); 3831 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3832 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3833 if (!vport_id.port_name || !vport_id.node_name) 3834 continue; 3835 3836 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3837 vport_id.vport_type = FC_PORTTYPE_NPIV; 3838 vport_id.disable = false; 3839 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3840 3841 if (!new_fc_vport) { 3842 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3843 "0546 lpfc_create_static_vport failed to" 3844 " create vport\n"); 3845 continue; 3846 } 3847 3848 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3849 vport->vport_flag |= STATIC_VPORT; 3850 } 3851 3852 out: 3853 kfree(vport_info); 3854 if (mbx_wait_rc != MBX_TIMEOUT) { 3855 if (pmb->ctx_buf) { 3856 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3857 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3858 kfree(mp); 3859 } 3860 mempool_free(pmb, phba->mbox_mem_pool); 3861 } 3862 3863 return; 3864 } 3865 3866 /* 3867 * This routine handles processing a Fabric REG_LOGIN mailbox 3868 * command upon completion. It is setup in the LPFC_MBOXQ 3869 * as the completion routine when the command is 3870 * handed off to the SLI layer. 3871 */ 3872 void 3873 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3874 { 3875 struct lpfc_vport *vport = pmb->vport; 3876 MAILBOX_t *mb = &pmb->u.mb; 3877 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3878 struct lpfc_nodelist *ndlp; 3879 struct Scsi_Host *shost; 3880 3881 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3882 pmb->ctx_ndlp = NULL; 3883 pmb->ctx_buf = NULL; 3884 3885 if (mb->mbxStatus) { 3886 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3887 "0258 Register Fabric login error: 0x%x\n", 3888 mb->mbxStatus); 3889 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3890 kfree(mp); 3891 mempool_free(pmb, phba->mbox_mem_pool); 3892 3893 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3894 /* FLOGI failed, use loop map to make discovery list */ 3895 lpfc_disc_list_loopmap(vport); 3896 3897 /* Start discovery */ 3898 lpfc_disc_start(vport); 3899 /* Decrement the reference count to ndlp after the 3900 * reference to the ndlp are done. 3901 */ 3902 lpfc_nlp_put(ndlp); 3903 return; 3904 } 3905 3906 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3907 /* Decrement the reference count to ndlp after the reference 3908 * to the ndlp are done. 3909 */ 3910 lpfc_nlp_put(ndlp); 3911 return; 3912 } 3913 3914 if (phba->sli_rev < LPFC_SLI_REV4) 3915 ndlp->nlp_rpi = mb->un.varWords[0]; 3916 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3917 ndlp->nlp_type |= NLP_FABRIC; 3918 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3919 3920 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3921 /* when physical port receive logo donot start 3922 * vport discovery */ 3923 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3924 lpfc_start_fdiscs(phba); 3925 else { 3926 shost = lpfc_shost_from_vport(vport); 3927 spin_lock_irq(shost->host_lock); 3928 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3929 spin_unlock_irq(shost->host_lock); 3930 } 3931 lpfc_do_scr_ns_plogi(phba, vport); 3932 } 3933 3934 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3935 kfree(mp); 3936 mempool_free(pmb, phba->mbox_mem_pool); 3937 3938 /* Drop the reference count from the mbox at the end after 3939 * all the current reference to the ndlp have been done. 3940 */ 3941 lpfc_nlp_put(ndlp); 3942 return; 3943 } 3944 3945 /* 3946 * This routine will issue a GID_FT for each FC4 Type supported 3947 * by the driver. ALL GID_FTs must complete before discovery is started. 3948 */ 3949 int 3950 lpfc_issue_gidft(struct lpfc_vport *vport) 3951 { 3952 /* Good status, issue CT Request to NameServer */ 3953 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3954 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3955 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3956 /* Cannot issue NameServer FCP Query, so finish up 3957 * discovery 3958 */ 3959 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3960 "0604 %s FC TYPE %x %s\n", 3961 "Failed to issue GID_FT to ", 3962 FC_TYPE_FCP, 3963 "Finishing discovery."); 3964 return 0; 3965 } 3966 vport->gidft_inp++; 3967 } 3968 3969 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3970 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3971 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3972 /* Cannot issue NameServer NVME Query, so finish up 3973 * discovery 3974 */ 3975 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3976 "0605 %s FC_TYPE %x %s %d\n", 3977 "Failed to issue GID_FT to ", 3978 FC_TYPE_NVME, 3979 "Finishing discovery: gidftinp ", 3980 vport->gidft_inp); 3981 if (vport->gidft_inp == 0) 3982 return 0; 3983 } else 3984 vport->gidft_inp++; 3985 } 3986 return vport->gidft_inp; 3987 } 3988 3989 /** 3990 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 3991 * @vport: The virtual port for which this call is being executed. 3992 * 3993 * This routine will issue a GID_PT to get a list of all N_Ports 3994 * 3995 * Return value : 3996 * 0 - Failure to issue a GID_PT 3997 * 1 - GID_PT issued 3998 **/ 3999 int 4000 lpfc_issue_gidpt(struct lpfc_vport *vport) 4001 { 4002 /* Good status, issue CT Request to NameServer */ 4003 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4004 /* Cannot issue NameServer FCP Query, so finish up 4005 * discovery 4006 */ 4007 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 4008 "0606 %s Port TYPE %x %s\n", 4009 "Failed to issue GID_PT to ", 4010 GID_PT_N_PORT, 4011 "Finishing discovery."); 4012 return 0; 4013 } 4014 vport->gidft_inp++; 4015 return 1; 4016 } 4017 4018 /* 4019 * This routine handles processing a NameServer REG_LOGIN mailbox 4020 * command upon completion. It is setup in the LPFC_MBOXQ 4021 * as the completion routine when the command is 4022 * handed off to the SLI layer. 4023 */ 4024 void 4025 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4026 { 4027 MAILBOX_t *mb = &pmb->u.mb; 4028 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4029 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4030 struct lpfc_vport *vport = pmb->vport; 4031 4032 pmb->ctx_buf = NULL; 4033 pmb->ctx_ndlp = NULL; 4034 vport->gidft_inp = 0; 4035 4036 if (mb->mbxStatus) { 4037 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4038 "0260 Register NameServer error: 0x%x\n", 4039 mb->mbxStatus); 4040 4041 out: 4042 /* decrement the node reference count held for this 4043 * callback function. 4044 */ 4045 lpfc_nlp_put(ndlp); 4046 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4047 kfree(mp); 4048 mempool_free(pmb, phba->mbox_mem_pool); 4049 4050 /* If no other thread is using the ndlp, free it */ 4051 lpfc_nlp_not_used(ndlp); 4052 4053 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4054 /* 4055 * RegLogin failed, use loop map to make discovery 4056 * list 4057 */ 4058 lpfc_disc_list_loopmap(vport); 4059 4060 /* Start discovery */ 4061 lpfc_disc_start(vport); 4062 return; 4063 } 4064 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4065 return; 4066 } 4067 4068 if (phba->sli_rev < LPFC_SLI_REV4) 4069 ndlp->nlp_rpi = mb->un.varWords[0]; 4070 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4071 ndlp->nlp_type |= NLP_FABRIC; 4072 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4073 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4074 "0003 rpi:%x DID:%x flg:%x %d map%x x%px\n", 4075 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4076 kref_read(&ndlp->kref), 4077 ndlp->nlp_usg_map, ndlp); 4078 4079 if (vport->port_state < LPFC_VPORT_READY) { 4080 /* Link up discovery requires Fabric registration. */ 4081 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4082 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4083 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4084 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4085 4086 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4087 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4088 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4089 4090 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4091 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4092 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4093 FC_TYPE_NVME); 4094 4095 /* Issue SCR just before NameServer GID_FT Query */ 4096 lpfc_issue_els_scr(vport, 0); 4097 4098 lpfc_issue_els_rdf(vport, 0); 4099 } 4100 4101 vport->fc_ns_retry = 0; 4102 if (lpfc_issue_gidft(vport) == 0) 4103 goto out; 4104 4105 /* 4106 * At this point in time we may need to wait for multiple 4107 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4108 * 4109 * decrement the node reference count held for this 4110 * callback function. 4111 */ 4112 lpfc_nlp_put(ndlp); 4113 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4114 kfree(mp); 4115 mempool_free(pmb, phba->mbox_mem_pool); 4116 4117 return; 4118 } 4119 4120 static void 4121 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4122 { 4123 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4124 struct fc_rport *rport; 4125 struct lpfc_rport_data *rdata; 4126 struct fc_rport_identifiers rport_ids; 4127 struct lpfc_hba *phba = vport->phba; 4128 4129 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4130 return; 4131 4132 /* Remote port has reappeared. Re-register w/ FC transport */ 4133 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4134 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4135 rport_ids.port_id = ndlp->nlp_DID; 4136 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4137 4138 /* 4139 * We leave our node pointer in rport->dd_data when we unregister a 4140 * FCP target port. But fc_remote_port_add zeros the space to which 4141 * rport->dd_data points. So, if we're reusing a previously 4142 * registered port, drop the reference that we took the last time we 4143 * registered the port. 4144 */ 4145 rport = ndlp->rport; 4146 if (rport) { 4147 rdata = rport->dd_data; 4148 /* break the link before dropping the ref */ 4149 ndlp->rport = NULL; 4150 if (rdata) { 4151 if (rdata->pnode == ndlp) 4152 lpfc_nlp_put(ndlp); 4153 rdata->pnode = NULL; 4154 } 4155 /* drop reference for earlier registeration */ 4156 put_device(&rport->dev); 4157 } 4158 4159 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4160 "rport add: did:x%x flg:x%x type x%x", 4161 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4162 4163 /* Don't add the remote port if unloading. */ 4164 if (vport->load_flag & FC_UNLOADING) 4165 return; 4166 4167 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4168 if (!rport || !get_device(&rport->dev)) { 4169 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4170 "Warning: fc_remote_port_add failed\n"); 4171 return; 4172 } 4173 4174 /* initialize static port data */ 4175 rport->maxframe_size = ndlp->nlp_maxframe; 4176 rport->supported_classes = ndlp->nlp_class_sup; 4177 rdata = rport->dd_data; 4178 rdata->pnode = lpfc_nlp_get(ndlp); 4179 4180 if (ndlp->nlp_type & NLP_FCP_TARGET) 4181 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4182 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4183 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4184 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4185 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4186 if (ndlp->nlp_type & NLP_NVME_TARGET) 4187 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4188 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4189 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4190 4191 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4192 fc_remote_port_rolechg(rport, rport_ids.roles); 4193 4194 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4195 "3183 rport register x%06x, rport x%px role x%x\n", 4196 ndlp->nlp_DID, rport, rport_ids.roles); 4197 4198 if ((rport->scsi_target_id != -1) && 4199 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4200 ndlp->nlp_sid = rport->scsi_target_id; 4201 } 4202 return; 4203 } 4204 4205 static void 4206 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4207 { 4208 struct fc_rport *rport = ndlp->rport; 4209 struct lpfc_vport *vport = ndlp->vport; 4210 4211 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4212 return; 4213 4214 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4215 "rport delete: did:x%x flg:x%x type x%x", 4216 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4217 4218 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4219 "3184 rport unregister x%06x, rport x%px\n", 4220 ndlp->nlp_DID, rport); 4221 4222 fc_remote_port_delete(rport); 4223 4224 return; 4225 } 4226 4227 static void 4228 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4229 { 4230 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4231 unsigned long iflags; 4232 4233 spin_lock_irqsave(shost->host_lock, iflags); 4234 switch (state) { 4235 case NLP_STE_UNUSED_NODE: 4236 vport->fc_unused_cnt += count; 4237 break; 4238 case NLP_STE_PLOGI_ISSUE: 4239 vport->fc_plogi_cnt += count; 4240 break; 4241 case NLP_STE_ADISC_ISSUE: 4242 vport->fc_adisc_cnt += count; 4243 break; 4244 case NLP_STE_REG_LOGIN_ISSUE: 4245 vport->fc_reglogin_cnt += count; 4246 break; 4247 case NLP_STE_PRLI_ISSUE: 4248 vport->fc_prli_cnt += count; 4249 break; 4250 case NLP_STE_UNMAPPED_NODE: 4251 vport->fc_unmap_cnt += count; 4252 break; 4253 case NLP_STE_MAPPED_NODE: 4254 vport->fc_map_cnt += count; 4255 break; 4256 case NLP_STE_NPR_NODE: 4257 if (vport->fc_npr_cnt == 0 && count == -1) 4258 vport->fc_npr_cnt = 0; 4259 else 4260 vport->fc_npr_cnt += count; 4261 break; 4262 } 4263 spin_unlock_irqrestore(shost->host_lock, iflags); 4264 } 4265 4266 static void 4267 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4268 int old_state, int new_state) 4269 { 4270 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4271 4272 if (new_state == NLP_STE_UNMAPPED_NODE) { 4273 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4274 ndlp->nlp_type |= NLP_FC_NODE; 4275 } 4276 if (new_state == NLP_STE_MAPPED_NODE) 4277 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4278 if (new_state == NLP_STE_NPR_NODE) 4279 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4280 4281 /* FCP and NVME Transport interface */ 4282 if ((old_state == NLP_STE_MAPPED_NODE || 4283 old_state == NLP_STE_UNMAPPED_NODE)) { 4284 if (ndlp->rport) { 4285 vport->phba->nport_event_cnt++; 4286 lpfc_unregister_remote_port(ndlp); 4287 } 4288 4289 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4290 vport->phba->nport_event_cnt++; 4291 if (vport->phba->nvmet_support == 0) { 4292 /* Start devloss if target. */ 4293 if (ndlp->nlp_type & NLP_NVME_TARGET) 4294 lpfc_nvme_unregister_port(vport, ndlp); 4295 } else { 4296 /* NVMET has no upcall. */ 4297 lpfc_nlp_put(ndlp); 4298 } 4299 } 4300 } 4301 4302 /* FCP and NVME Transport interfaces */ 4303 4304 if (new_state == NLP_STE_MAPPED_NODE || 4305 new_state == NLP_STE_UNMAPPED_NODE) { 4306 if (ndlp->nlp_fc4_type || 4307 ndlp->nlp_DID == Fabric_DID || 4308 ndlp->nlp_DID == NameServer_DID || 4309 ndlp->nlp_DID == FDMI_DID) { 4310 vport->phba->nport_event_cnt++; 4311 /* 4312 * Tell the fc transport about the port, if we haven't 4313 * already. If we have, and it's a scsi entity, be 4314 */ 4315 lpfc_register_remote_port(vport, ndlp); 4316 } 4317 /* Notify the NVME transport of this new rport. */ 4318 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4319 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4320 if (vport->phba->nvmet_support == 0) { 4321 /* Register this rport with the transport. 4322 * Only NVME Target Rports are registered with 4323 * the transport. 4324 */ 4325 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4326 vport->phba->nport_event_cnt++; 4327 lpfc_nvme_register_port(vport, ndlp); 4328 } 4329 } else { 4330 /* Just take an NDLP ref count since the 4331 * target does not register rports. 4332 */ 4333 lpfc_nlp_get(ndlp); 4334 } 4335 } 4336 } 4337 4338 if ((new_state == NLP_STE_MAPPED_NODE) && 4339 (vport->stat_data_enabled)) { 4340 /* 4341 * A new target is discovered, if there is no buffer for 4342 * statistical data collection allocate buffer. 4343 */ 4344 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4345 sizeof(struct lpfc_scsicmd_bkt), 4346 GFP_KERNEL); 4347 4348 if (!ndlp->lat_data) 4349 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4350 "0286 lpfc_nlp_state_cleanup failed to " 4351 "allocate statistical data buffer DID " 4352 "0x%x\n", ndlp->nlp_DID); 4353 } 4354 /* 4355 * If the node just added to Mapped list was an FCP target, 4356 * but the remote port registration failed or assigned a target 4357 * id outside the presentable range - move the node to the 4358 * Unmapped List. 4359 */ 4360 if ((new_state == NLP_STE_MAPPED_NODE) && 4361 (ndlp->nlp_type & NLP_FCP_TARGET) && 4362 (!ndlp->rport || 4363 ndlp->rport->scsi_target_id == -1 || 4364 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4365 spin_lock_irq(shost->host_lock); 4366 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4367 spin_unlock_irq(shost->host_lock); 4368 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4369 } 4370 } 4371 4372 static char * 4373 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4374 { 4375 static char *states[] = { 4376 [NLP_STE_UNUSED_NODE] = "UNUSED", 4377 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4378 [NLP_STE_ADISC_ISSUE] = "ADISC", 4379 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4380 [NLP_STE_PRLI_ISSUE] = "PRLI", 4381 [NLP_STE_LOGO_ISSUE] = "LOGO", 4382 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4383 [NLP_STE_MAPPED_NODE] = "MAPPED", 4384 [NLP_STE_NPR_NODE] = "NPR", 4385 }; 4386 4387 if (state < NLP_STE_MAX_STATE && states[state]) 4388 strlcpy(buffer, states[state], size); 4389 else 4390 snprintf(buffer, size, "unknown (%d)", state); 4391 return buffer; 4392 } 4393 4394 void 4395 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4396 int state) 4397 { 4398 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4399 int old_state = ndlp->nlp_state; 4400 char name1[16], name2[16]; 4401 4402 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4403 "0904 NPort state transition x%06x, %s -> %s\n", 4404 ndlp->nlp_DID, 4405 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4406 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4407 4408 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4409 "node statechg did:x%x old:%d ste:%d", 4410 ndlp->nlp_DID, old_state, state); 4411 4412 if (old_state == NLP_STE_NPR_NODE && 4413 state != NLP_STE_NPR_NODE) 4414 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4415 if (old_state == NLP_STE_UNMAPPED_NODE) { 4416 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4417 ndlp->nlp_type &= ~NLP_FC_NODE; 4418 } 4419 4420 if (list_empty(&ndlp->nlp_listp)) { 4421 spin_lock_irq(shost->host_lock); 4422 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4423 spin_unlock_irq(shost->host_lock); 4424 } else if (old_state) 4425 lpfc_nlp_counters(vport, old_state, -1); 4426 4427 ndlp->nlp_state = state; 4428 lpfc_nlp_counters(vport, state, 1); 4429 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4430 } 4431 4432 void 4433 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4434 { 4435 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4436 4437 if (list_empty(&ndlp->nlp_listp)) { 4438 spin_lock_irq(shost->host_lock); 4439 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4440 spin_unlock_irq(shost->host_lock); 4441 } 4442 } 4443 4444 void 4445 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4446 { 4447 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4448 4449 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4450 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4451 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4452 spin_lock_irq(shost->host_lock); 4453 list_del_init(&ndlp->nlp_listp); 4454 spin_unlock_irq(shost->host_lock); 4455 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4456 NLP_STE_UNUSED_NODE); 4457 } 4458 4459 static void 4460 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4461 { 4462 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4463 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4464 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4465 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4466 NLP_STE_UNUSED_NODE); 4467 } 4468 /** 4469 * lpfc_initialize_node - Initialize all fields of node object 4470 * @vport: Pointer to Virtual Port object. 4471 * @ndlp: Pointer to FC node object. 4472 * @did: FC_ID of the node. 4473 * 4474 * This function is always called when node object need to be initialized. 4475 * It initializes all the fields of the node object. Although the reference 4476 * to phba from @ndlp can be obtained indirectly through it's reference to 4477 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4478 * to the life-span of the @ndlp might go beyond the existence of @vport as 4479 * the final release of ndlp is determined by its reference count. And, the 4480 * operation on @ndlp needs the reference to phba. 4481 **/ 4482 static inline void 4483 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4484 uint32_t did) 4485 { 4486 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4487 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4488 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4489 ndlp->nlp_DID = did; 4490 ndlp->vport = vport; 4491 ndlp->phba = vport->phba; 4492 ndlp->nlp_sid = NLP_NO_SID; 4493 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4494 kref_init(&ndlp->kref); 4495 NLP_INT_NODE_ACT(ndlp); 4496 atomic_set(&ndlp->cmd_pending, 0); 4497 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4498 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4499 } 4500 4501 struct lpfc_nodelist * 4502 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4503 int state) 4504 { 4505 struct lpfc_hba *phba = vport->phba; 4506 uint32_t did, flag; 4507 unsigned long flags; 4508 unsigned long *active_rrqs_xri_bitmap = NULL; 4509 int rpi = LPFC_RPI_ALLOC_ERROR; 4510 uint32_t defer_did = 0; 4511 4512 if (!ndlp) 4513 return NULL; 4514 4515 if (phba->sli_rev == LPFC_SLI_REV4) { 4516 if (ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR) 4517 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4518 else 4519 rpi = ndlp->nlp_rpi; 4520 4521 if (rpi == LPFC_RPI_ALLOC_ERROR) { 4522 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4523 "0359 %s: ndlp:x%px " 4524 "usgmap:x%x refcnt:%d FAILED RPI " 4525 " ALLOC\n", 4526 __func__, 4527 (void *)ndlp, ndlp->nlp_usg_map, 4528 kref_read(&ndlp->kref)); 4529 return NULL; 4530 } 4531 } 4532 4533 spin_lock_irqsave(&phba->ndlp_lock, flags); 4534 /* The ndlp should not be in memory free mode */ 4535 if (NLP_CHK_FREE_REQ(ndlp)) { 4536 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4537 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4538 "0277 %s: ndlp:x%px " 4539 "usgmap:x%x refcnt:%d\n", 4540 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4541 kref_read(&ndlp->kref)); 4542 goto free_rpi; 4543 } 4544 /* The ndlp should not already be in active mode */ 4545 if (NLP_CHK_NODE_ACT(ndlp)) { 4546 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4547 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4548 "0278 %s: ndlp:x%px " 4549 "usgmap:x%x refcnt:%d\n", 4550 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4551 kref_read(&ndlp->kref)); 4552 goto free_rpi; 4553 } 4554 4555 /* First preserve the orginal DID, xri_bitmap and some flags */ 4556 did = ndlp->nlp_DID; 4557 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4558 if (flag & NLP_UNREG_INP) 4559 defer_did = ndlp->nlp_defer_did; 4560 if (phba->sli_rev == LPFC_SLI_REV4) 4561 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4562 4563 /* Zero ndlp except of ndlp linked list pointer */ 4564 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4565 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4566 4567 /* Next reinitialize and restore saved objects */ 4568 lpfc_initialize_node(vport, ndlp, did); 4569 ndlp->nlp_flag |= flag; 4570 if (flag & NLP_UNREG_INP) 4571 ndlp->nlp_defer_did = defer_did; 4572 if (phba->sli_rev == LPFC_SLI_REV4) 4573 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4574 4575 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4576 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4577 ndlp->nlp_rpi = rpi; 4578 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4579 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4580 "map:%x x%px\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4581 ndlp->nlp_flag, 4582 kref_read(&ndlp->kref), 4583 ndlp->nlp_usg_map, ndlp); 4584 } 4585 4586 4587 if (state != NLP_STE_UNUSED_NODE) 4588 lpfc_nlp_set_state(vport, ndlp, state); 4589 else 4590 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4591 "0013 rpi:%x DID:%x flg:%x refcnt:%d " 4592 "map:%x x%px STATE=UNUSED\n", 4593 ndlp->nlp_rpi, ndlp->nlp_DID, 4594 ndlp->nlp_flag, 4595 kref_read(&ndlp->kref), 4596 ndlp->nlp_usg_map, ndlp); 4597 4598 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4599 "node enable: did:x%x", 4600 ndlp->nlp_DID, 0, 0); 4601 return ndlp; 4602 4603 free_rpi: 4604 if (phba->sli_rev == LPFC_SLI_REV4) { 4605 lpfc_sli4_free_rpi(vport->phba, rpi); 4606 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4607 } 4608 return NULL; 4609 } 4610 4611 void 4612 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4613 { 4614 /* 4615 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4616 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4617 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4618 * until ALL other outstanding threads have completed. We check 4619 * that the ndlp not already in the UNUSED state before we proceed. 4620 */ 4621 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4622 return; 4623 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4624 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4625 lpfc_cleanup_vports_rrqs(vport, ndlp); 4626 lpfc_unreg_rpi(vport, ndlp); 4627 } 4628 4629 lpfc_nlp_put(ndlp); 4630 return; 4631 } 4632 4633 /* 4634 * Start / ReStart rescue timer for Discovery / RSCN handling 4635 */ 4636 void 4637 lpfc_set_disctmo(struct lpfc_vport *vport) 4638 { 4639 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4640 struct lpfc_hba *phba = vport->phba; 4641 uint32_t tmo; 4642 4643 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4644 /* For FAN, timeout should be greater than edtov */ 4645 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4646 } else { 4647 /* Normal discovery timeout should be > than ELS/CT timeout 4648 * FC spec states we need 3 * ratov for CT requests 4649 */ 4650 tmo = ((phba->fc_ratov * 3) + 3); 4651 } 4652 4653 4654 if (!timer_pending(&vport->fc_disctmo)) { 4655 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4656 "set disc timer: tmo:x%x state:x%x flg:x%x", 4657 tmo, vport->port_state, vport->fc_flag); 4658 } 4659 4660 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4661 spin_lock_irq(shost->host_lock); 4662 vport->fc_flag |= FC_DISC_TMO; 4663 spin_unlock_irq(shost->host_lock); 4664 4665 /* Start Discovery Timer state <hba_state> */ 4666 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4667 "0247 Start Discovery Timer state x%x " 4668 "Data: x%x x%lx x%x x%x\n", 4669 vport->port_state, tmo, 4670 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4671 vport->fc_adisc_cnt); 4672 4673 return; 4674 } 4675 4676 /* 4677 * Cancel rescue timer for Discovery / RSCN handling 4678 */ 4679 int 4680 lpfc_can_disctmo(struct lpfc_vport *vport) 4681 { 4682 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4683 unsigned long iflags; 4684 4685 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4686 "can disc timer: state:x%x rtry:x%x flg:x%x", 4687 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4688 4689 /* Turn off discovery timer if its running */ 4690 if (vport->fc_flag & FC_DISC_TMO) { 4691 spin_lock_irqsave(shost->host_lock, iflags); 4692 vport->fc_flag &= ~FC_DISC_TMO; 4693 spin_unlock_irqrestore(shost->host_lock, iflags); 4694 del_timer_sync(&vport->fc_disctmo); 4695 spin_lock_irqsave(&vport->work_port_lock, iflags); 4696 vport->work_port_events &= ~WORKER_DISC_TMO; 4697 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4698 } 4699 4700 /* Cancel Discovery Timer state <hba_state> */ 4701 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4702 "0248 Cancel Discovery Timer state x%x " 4703 "Data: x%x x%x x%x\n", 4704 vport->port_state, vport->fc_flag, 4705 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4706 return 0; 4707 } 4708 4709 /* 4710 * Check specified ring for outstanding IOCB on the SLI queue 4711 * Return true if iocb matches the specified nport 4712 */ 4713 int 4714 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4715 struct lpfc_sli_ring *pring, 4716 struct lpfc_iocbq *iocb, 4717 struct lpfc_nodelist *ndlp) 4718 { 4719 IOCB_t *icmd = &iocb->iocb; 4720 struct lpfc_vport *vport = ndlp->vport; 4721 4722 if (iocb->vport != vport) 4723 return 0; 4724 4725 if (pring->ringno == LPFC_ELS_RING) { 4726 switch (icmd->ulpCommand) { 4727 case CMD_GEN_REQUEST64_CR: 4728 if (iocb->context_un.ndlp == ndlp) 4729 return 1; 4730 /* fall through */ 4731 case CMD_ELS_REQUEST64_CR: 4732 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4733 return 1; 4734 /* fall through */ 4735 case CMD_XMIT_ELS_RSP64_CX: 4736 if (iocb->context1 == (uint8_t *) ndlp) 4737 return 1; 4738 /* fall through */ 4739 } 4740 } else if (pring->ringno == LPFC_FCP_RING) { 4741 /* Skip match check if waiting to relogin to FCP target */ 4742 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4743 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4744 return 0; 4745 } 4746 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4747 return 1; 4748 } 4749 } 4750 return 0; 4751 } 4752 4753 static void 4754 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4755 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4756 struct list_head *dequeue_list) 4757 { 4758 struct lpfc_iocbq *iocb, *next_iocb; 4759 4760 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4761 /* Check to see if iocb matches the nport */ 4762 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4763 /* match, dequeue */ 4764 list_move_tail(&iocb->list, dequeue_list); 4765 } 4766 } 4767 4768 static void 4769 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4770 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4771 { 4772 struct lpfc_sli *psli = &phba->sli; 4773 uint32_t i; 4774 4775 spin_lock_irq(&phba->hbalock); 4776 for (i = 0; i < psli->num_rings; i++) 4777 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4778 dequeue_list); 4779 spin_unlock_irq(&phba->hbalock); 4780 } 4781 4782 static void 4783 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4784 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4785 { 4786 struct lpfc_sli_ring *pring; 4787 struct lpfc_queue *qp = NULL; 4788 4789 spin_lock_irq(&phba->hbalock); 4790 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4791 pring = qp->pring; 4792 if (!pring) 4793 continue; 4794 spin_lock(&pring->ring_lock); 4795 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4796 spin_unlock(&pring->ring_lock); 4797 } 4798 spin_unlock_irq(&phba->hbalock); 4799 } 4800 4801 /* 4802 * Free resources / clean up outstanding I/Os 4803 * associated with nlp_rpi in the LPFC_NODELIST entry. 4804 */ 4805 static int 4806 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4807 { 4808 LIST_HEAD(completions); 4809 4810 lpfc_fabric_abort_nport(ndlp); 4811 4812 /* 4813 * Everything that matches on txcmplq will be returned 4814 * by firmware with a no rpi error. 4815 */ 4816 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4817 if (phba->sli_rev != LPFC_SLI_REV4) 4818 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4819 else 4820 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4821 } 4822 4823 /* Cancel all the IOCBs from the completions list */ 4824 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4825 IOERR_SLI_ABORTED); 4826 4827 return 0; 4828 } 4829 4830 /** 4831 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4832 * @phba: Pointer to HBA context object. 4833 * @pmb: Pointer to mailbox object. 4834 * 4835 * This function will issue an ELS LOGO command after completing 4836 * the UNREG_RPI. 4837 **/ 4838 static void 4839 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4840 { 4841 struct lpfc_vport *vport = pmb->vport; 4842 struct lpfc_nodelist *ndlp; 4843 4844 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4845 if (!ndlp) 4846 return; 4847 lpfc_issue_els_logo(vport, ndlp, 0); 4848 mempool_free(pmb, phba->mbox_mem_pool); 4849 4850 /* Check to see if there are any deferred events to process */ 4851 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4852 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4853 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4854 "1434 UNREG cmpl deferred logo x%x " 4855 "on NPort x%x Data: x%x x%px\n", 4856 ndlp->nlp_rpi, ndlp->nlp_DID, 4857 ndlp->nlp_defer_did, ndlp); 4858 4859 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4860 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4861 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4862 } else { 4863 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 4864 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 4865 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 4866 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4867 } 4868 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4869 } 4870 } 4871 4872 /* 4873 * Sets the mailbox completion handler to be used for the 4874 * unreg_rpi command. The handler varies based on the state of 4875 * the port and what will be happening to the rpi next. 4876 */ 4877 static void 4878 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 4879 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 4880 { 4881 unsigned long iflags; 4882 4883 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4884 mbox->ctx_ndlp = ndlp; 4885 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4886 4887 } else if (phba->sli_rev == LPFC_SLI_REV4 && 4888 (!(vport->load_flag & FC_UNLOADING)) && 4889 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 4890 LPFC_SLI_INTF_IF_TYPE_2) && 4891 (kref_read(&ndlp->kref) > 0)) { 4892 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4893 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 4894 } else { 4895 if (vport->load_flag & FC_UNLOADING) { 4896 if (phba->sli_rev == LPFC_SLI_REV4) { 4897 spin_lock_irqsave(&vport->phba->ndlp_lock, 4898 iflags); 4899 ndlp->nlp_flag |= NLP_RELEASE_RPI; 4900 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 4901 iflags); 4902 } 4903 lpfc_nlp_get(ndlp); 4904 } 4905 mbox->ctx_ndlp = ndlp; 4906 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4907 } 4908 } 4909 4910 /* 4911 * Free rpi associated with LPFC_NODELIST entry. 4912 * This routine is called from lpfc_freenode(), when we are removing 4913 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4914 * LOGO that completes successfully, and we are waiting to PLOGI back 4915 * to the remote NPort. In addition, it is called after we receive 4916 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4917 * we are waiting to PLOGI back to the remote NPort. 4918 */ 4919 int 4920 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4921 { 4922 struct lpfc_hba *phba = vport->phba; 4923 LPFC_MBOXQ_t *mbox; 4924 int rc, acc_plogi = 1; 4925 uint16_t rpi; 4926 4927 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4928 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4929 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4930 lpfc_printf_vlog(vport, KERN_INFO, 4931 LOG_NODE | LOG_DISCOVERY, 4932 "3366 RPI x%x needs to be " 4933 "unregistered nlp_flag x%x " 4934 "did x%x\n", 4935 ndlp->nlp_rpi, ndlp->nlp_flag, 4936 ndlp->nlp_DID); 4937 4938 /* If there is already an UNREG in progress for this ndlp, 4939 * no need to queue up another one. 4940 */ 4941 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4942 lpfc_printf_vlog(vport, KERN_INFO, 4943 LOG_NODE | LOG_DISCOVERY, 4944 "1436 unreg_rpi SKIP UNREG x%x on " 4945 "NPort x%x deferred x%x flg x%x " 4946 "Data: x%px\n", 4947 ndlp->nlp_rpi, ndlp->nlp_DID, 4948 ndlp->nlp_defer_did, 4949 ndlp->nlp_flag, ndlp); 4950 goto out; 4951 } 4952 4953 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4954 if (mbox) { 4955 /* SLI4 ports require the physical rpi value. */ 4956 rpi = ndlp->nlp_rpi; 4957 if (phba->sli_rev == LPFC_SLI_REV4) 4958 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4959 4960 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4961 mbox->vport = vport; 4962 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 4963 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 4964 /* 4965 * accept PLOGIs after unreg_rpi_cmpl 4966 */ 4967 acc_plogi = 0; 4968 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 4969 Fabric_DID_MASK) && 4970 (!(vport->fc_flag & FC_OFFLINE_MODE))) 4971 ndlp->nlp_flag |= NLP_UNREG_INP; 4972 4973 lpfc_printf_vlog(vport, KERN_INFO, 4974 LOG_NODE | LOG_DISCOVERY, 4975 "1433 unreg_rpi UNREG x%x on " 4976 "NPort x%x deferred flg x%x " 4977 "Data:x%px\n", 4978 ndlp->nlp_rpi, ndlp->nlp_DID, 4979 ndlp->nlp_flag, ndlp); 4980 4981 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4982 if (rc == MBX_NOT_FINISHED) { 4983 mempool_free(mbox, phba->mbox_mem_pool); 4984 acc_plogi = 1; 4985 } 4986 } 4987 lpfc_no_rpi(phba, ndlp); 4988 out: 4989 if (phba->sli_rev != LPFC_SLI_REV4) 4990 ndlp->nlp_rpi = 0; 4991 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4992 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4993 if (acc_plogi) 4994 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4995 return 1; 4996 } 4997 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4998 return 0; 4999 } 5000 5001 /** 5002 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 5003 * @phba: pointer to lpfc hba data structure. 5004 * 5005 * This routine is invoked to unregister all the currently registered RPIs 5006 * to the HBA. 5007 **/ 5008 void 5009 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5010 { 5011 struct lpfc_vport **vports; 5012 struct lpfc_nodelist *ndlp; 5013 struct Scsi_Host *shost; 5014 int i; 5015 5016 vports = lpfc_create_vport_work_array(phba); 5017 if (!vports) { 5018 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 5019 "2884 Vport array allocation failed \n"); 5020 return; 5021 } 5022 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5023 shost = lpfc_shost_from_vport(vports[i]); 5024 spin_lock_irq(shost->host_lock); 5025 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5026 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5027 /* The mempool_alloc might sleep */ 5028 spin_unlock_irq(shost->host_lock); 5029 lpfc_unreg_rpi(vports[i], ndlp); 5030 spin_lock_irq(shost->host_lock); 5031 } 5032 } 5033 spin_unlock_irq(shost->host_lock); 5034 } 5035 lpfc_destroy_vport_work_array(phba, vports); 5036 } 5037 5038 void 5039 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5040 { 5041 struct lpfc_hba *phba = vport->phba; 5042 LPFC_MBOXQ_t *mbox; 5043 int rc; 5044 5045 if (phba->sli_rev == LPFC_SLI_REV4) { 5046 lpfc_sli4_unreg_all_rpis(vport); 5047 return; 5048 } 5049 5050 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5051 if (mbox) { 5052 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5053 mbox); 5054 mbox->vport = vport; 5055 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5056 mbox->ctx_ndlp = NULL; 5057 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5058 if (rc != MBX_TIMEOUT) 5059 mempool_free(mbox, phba->mbox_mem_pool); 5060 5061 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5062 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5063 "1836 Could not issue " 5064 "unreg_login(all_rpis) status %d\n", rc); 5065 } 5066 } 5067 5068 void 5069 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5070 { 5071 struct lpfc_hba *phba = vport->phba; 5072 LPFC_MBOXQ_t *mbox; 5073 int rc; 5074 5075 /* Unreg DID is an SLI3 operation. */ 5076 if (phba->sli_rev > LPFC_SLI_REV3) 5077 return; 5078 5079 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5080 if (mbox) { 5081 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5082 mbox); 5083 mbox->vport = vport; 5084 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5085 mbox->ctx_ndlp = NULL; 5086 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5087 if (rc != MBX_TIMEOUT) 5088 mempool_free(mbox, phba->mbox_mem_pool); 5089 5090 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5091 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5092 "1815 Could not issue " 5093 "unreg_did (default rpis) status %d\n", 5094 rc); 5095 } 5096 } 5097 5098 /* 5099 * Free resources associated with LPFC_NODELIST entry 5100 * so it can be freed. 5101 */ 5102 static int 5103 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5104 { 5105 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5106 struct lpfc_hba *phba = vport->phba; 5107 LPFC_MBOXQ_t *mb, *nextmb; 5108 struct lpfc_dmabuf *mp; 5109 unsigned long iflags; 5110 5111 /* Cleanup node for NPort <nlp_DID> */ 5112 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5113 "0900 Cleanup node for NPort x%x " 5114 "Data: x%x x%x x%x\n", 5115 ndlp->nlp_DID, ndlp->nlp_flag, 5116 ndlp->nlp_state, ndlp->nlp_rpi); 5117 if (NLP_CHK_FREE_REQ(ndlp)) { 5118 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5119 "0280 %s: ndlp:x%px " 5120 "usgmap:x%x refcnt:%d\n", 5121 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5122 kref_read(&ndlp->kref)); 5123 lpfc_dequeue_node(vport, ndlp); 5124 } else { 5125 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5126 "0281 %s: ndlp:x%px " 5127 "usgmap:x%x refcnt:%d\n", 5128 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5129 kref_read(&ndlp->kref)); 5130 lpfc_disable_node(vport, ndlp); 5131 } 5132 5133 5134 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5135 5136 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5137 if ((mb = phba->sli.mbox_active)) { 5138 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5139 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5140 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5141 mb->ctx_ndlp = NULL; 5142 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5143 } 5144 } 5145 5146 spin_lock_irq(&phba->hbalock); 5147 /* Cleanup REG_LOGIN completions which are not yet processed */ 5148 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5149 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5150 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5151 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5152 continue; 5153 5154 mb->ctx_ndlp = NULL; 5155 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5156 } 5157 5158 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5159 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5160 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5161 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5162 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5163 if (mp) { 5164 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5165 kfree(mp); 5166 } 5167 list_del(&mb->list); 5168 mempool_free(mb, phba->mbox_mem_pool); 5169 /* We shall not invoke the lpfc_nlp_put to decrement 5170 * the ndlp reference count as we are in the process 5171 * of lpfc_nlp_release. 5172 */ 5173 } 5174 } 5175 spin_unlock_irq(&phba->hbalock); 5176 5177 lpfc_els_abort(phba, ndlp); 5178 5179 spin_lock_irq(shost->host_lock); 5180 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5181 spin_unlock_irq(shost->host_lock); 5182 5183 ndlp->nlp_last_elscmd = 0; 5184 del_timer_sync(&ndlp->nlp_delayfunc); 5185 5186 list_del_init(&ndlp->els_retry_evt.evt_listp); 5187 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5188 lpfc_cleanup_vports_rrqs(vport, ndlp); 5189 if (phba->sli_rev == LPFC_SLI_REV4) 5190 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5191 if (!lpfc_unreg_rpi(vport, ndlp)) { 5192 /* Clean up unregistered and non freed rpis */ 5193 if ((ndlp->nlp_flag & NLP_RELEASE_RPI) && 5194 !(ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)) { 5195 lpfc_sli4_free_rpi(vport->phba, 5196 ndlp->nlp_rpi); 5197 spin_lock_irqsave(&vport->phba->ndlp_lock, 5198 iflags); 5199 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5200 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5201 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 5202 iflags); 5203 } 5204 } 5205 return 0; 5206 } 5207 5208 /* 5209 * Check to see if we can free the nlp back to the freelist. 5210 * If we are in the middle of using the nlp in the discovery state 5211 * machine, defer the free till we reach the end of the state machine. 5212 */ 5213 static void 5214 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5215 { 5216 struct lpfc_hba *phba = vport->phba; 5217 struct lpfc_rport_data *rdata; 5218 struct fc_rport *rport; 5219 LPFC_MBOXQ_t *mbox; 5220 int rc; 5221 5222 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5223 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5224 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5225 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5226 phba->sli_rev != LPFC_SLI_REV4) { 5227 /* For this case we need to cleanup the default rpi 5228 * allocated by the firmware. 5229 */ 5230 lpfc_printf_vlog(vport, KERN_INFO, 5231 LOG_NODE | LOG_DISCOVERY, 5232 "0005 Cleanup Default rpi:x%x DID:x%x flg:x%x " 5233 "ref %d map:x%x ndlp x%px\n", 5234 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5235 kref_read(&ndlp->kref), 5236 ndlp->nlp_usg_map, ndlp); 5237 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5238 != NULL) { 5239 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5240 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5241 if (rc) { 5242 mempool_free(mbox, phba->mbox_mem_pool); 5243 } 5244 else { 5245 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5246 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5247 mbox->vport = vport; 5248 mbox->ctx_ndlp = ndlp; 5249 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5250 if (rc == MBX_NOT_FINISHED) { 5251 mempool_free(mbox, phba->mbox_mem_pool); 5252 } 5253 } 5254 } 5255 } 5256 lpfc_cleanup_node(vport, ndlp); 5257 5258 /* 5259 * ndlp->rport must be set to NULL before it reaches here 5260 * i.e. break rport/node link before doing lpfc_nlp_put for 5261 * registered rport and then drop the reference of rport. 5262 */ 5263 if (ndlp->rport) { 5264 /* 5265 * extra lpfc_nlp_put dropped the reference of ndlp 5266 * for registered rport so need to cleanup rport 5267 */ 5268 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5269 "0940 removed node x%px DID x%x " 5270 "rpi %d rport not null x%px\n", 5271 ndlp, ndlp->nlp_DID, ndlp->nlp_rpi, 5272 ndlp->rport); 5273 rport = ndlp->rport; 5274 rdata = rport->dd_data; 5275 rdata->pnode = NULL; 5276 ndlp->rport = NULL; 5277 put_device(&rport->dev); 5278 } 5279 } 5280 5281 static int 5282 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5283 uint32_t did) 5284 { 5285 D_ID mydid, ndlpdid, matchdid; 5286 5287 if (did == Bcast_DID) 5288 return 0; 5289 5290 /* First check for Direct match */ 5291 if (ndlp->nlp_DID == did) 5292 return 1; 5293 5294 /* Next check for area/domain identically equals 0 match */ 5295 mydid.un.word = vport->fc_myDID; 5296 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5297 return 0; 5298 } 5299 5300 matchdid.un.word = did; 5301 ndlpdid.un.word = ndlp->nlp_DID; 5302 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5303 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5304 (mydid.un.b.area == matchdid.un.b.area)) { 5305 /* This code is supposed to match the ID 5306 * for a private loop device that is 5307 * connect to fl_port. But we need to 5308 * check that the port did not just go 5309 * from pt2pt to fabric or we could end 5310 * up matching ndlp->nlp_DID 000001 to 5311 * fabric DID 0x20101 5312 */ 5313 if ((ndlpdid.un.b.domain == 0) && 5314 (ndlpdid.un.b.area == 0)) { 5315 if (ndlpdid.un.b.id && 5316 vport->phba->fc_topology == 5317 LPFC_TOPOLOGY_LOOP) 5318 return 1; 5319 } 5320 return 0; 5321 } 5322 5323 matchdid.un.word = ndlp->nlp_DID; 5324 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5325 (mydid.un.b.area == ndlpdid.un.b.area)) { 5326 if ((matchdid.un.b.domain == 0) && 5327 (matchdid.un.b.area == 0)) { 5328 if (matchdid.un.b.id) 5329 return 1; 5330 } 5331 } 5332 } 5333 return 0; 5334 } 5335 5336 /* Search for a nodelist entry */ 5337 static struct lpfc_nodelist * 5338 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5339 { 5340 struct lpfc_nodelist *ndlp; 5341 uint32_t data1; 5342 5343 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5344 if (lpfc_matchdid(vport, ndlp, did)) { 5345 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5346 ((uint32_t)ndlp->nlp_xri << 16) | 5347 ((uint32_t)ndlp->nlp_type << 8) | 5348 ((uint32_t)ndlp->nlp_usg_map & 0xff)); 5349 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5350 "0929 FIND node DID " 5351 "Data: x%px x%x x%x x%x x%x x%px\n", 5352 ndlp, ndlp->nlp_DID, 5353 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5354 ndlp->active_rrqs_xri_bitmap); 5355 return ndlp; 5356 } 5357 } 5358 5359 /* FIND node did <did> NOT FOUND */ 5360 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5361 "0932 FIND node did x%x NOT FOUND.\n", did); 5362 return NULL; 5363 } 5364 5365 struct lpfc_nodelist * 5366 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5367 { 5368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5369 struct lpfc_nodelist *ndlp; 5370 unsigned long iflags; 5371 5372 spin_lock_irqsave(shost->host_lock, iflags); 5373 ndlp = __lpfc_findnode_did(vport, did); 5374 spin_unlock_irqrestore(shost->host_lock, iflags); 5375 return ndlp; 5376 } 5377 5378 struct lpfc_nodelist * 5379 lpfc_findnode_mapped(struct lpfc_vport *vport) 5380 { 5381 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5382 struct lpfc_nodelist *ndlp; 5383 uint32_t data1; 5384 unsigned long iflags; 5385 5386 spin_lock_irqsave(shost->host_lock, iflags); 5387 5388 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5389 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5390 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5391 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5392 ((uint32_t)ndlp->nlp_xri << 16) | 5393 ((uint32_t)ndlp->nlp_type << 8) | 5394 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5395 spin_unlock_irqrestore(shost->host_lock, iflags); 5396 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5397 "2025 FIND node DID " 5398 "Data: x%px x%x x%x x%x x%px\n", 5399 ndlp, ndlp->nlp_DID, 5400 ndlp->nlp_flag, data1, 5401 ndlp->active_rrqs_xri_bitmap); 5402 return ndlp; 5403 } 5404 } 5405 spin_unlock_irqrestore(shost->host_lock, iflags); 5406 5407 /* FIND node did <did> NOT FOUND */ 5408 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5409 "2026 FIND mapped did NOT FOUND.\n"); 5410 return NULL; 5411 } 5412 5413 struct lpfc_nodelist * 5414 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5415 { 5416 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5417 struct lpfc_nodelist *ndlp; 5418 5419 ndlp = lpfc_findnode_did(vport, did); 5420 if (!ndlp) { 5421 if (vport->phba->nvmet_support) 5422 return NULL; 5423 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5424 lpfc_rscn_payload_check(vport, did) == 0) 5425 return NULL; 5426 ndlp = lpfc_nlp_init(vport, did); 5427 if (!ndlp) 5428 return NULL; 5429 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5430 5431 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5432 "6453 Setup New Node 2B_DISC x%x " 5433 "Data:x%x x%x x%x\n", 5434 ndlp->nlp_DID, ndlp->nlp_flag, 5435 ndlp->nlp_state, vport->fc_flag); 5436 5437 spin_lock_irq(shost->host_lock); 5438 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5439 spin_unlock_irq(shost->host_lock); 5440 return ndlp; 5441 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5442 if (vport->phba->nvmet_support) 5443 return NULL; 5444 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5445 if (!ndlp) { 5446 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 5447 "0014 Could not enable ndlp\n"); 5448 return NULL; 5449 } 5450 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5451 "6454 Setup Enabled 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 spin_lock_irq(shost->host_lock); 5457 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5458 spin_unlock_irq(shost->host_lock); 5459 return ndlp; 5460 } 5461 5462 /* The NVME Target does not want to actively manage an rport. 5463 * The goal is to allow the target to reset its state and clear 5464 * pending IO in preparation for the initiator to recover. 5465 */ 5466 if ((vport->fc_flag & FC_RSCN_MODE) && 5467 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5468 if (lpfc_rscn_payload_check(vport, did)) { 5469 5470 /* Since this node is marked for discovery, 5471 * delay timeout is not needed. 5472 */ 5473 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5474 5475 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5476 "6455 Setup RSCN Node 2B_DISC x%x " 5477 "Data:x%x x%x x%x\n", 5478 ndlp->nlp_DID, ndlp->nlp_flag, 5479 ndlp->nlp_state, vport->fc_flag); 5480 5481 /* NVME Target mode waits until rport is known to be 5482 * impacted by the RSCN before it transitions. No 5483 * active management - just go to NPR provided the 5484 * node had a valid login. 5485 */ 5486 if (vport->phba->nvmet_support) 5487 return ndlp; 5488 5489 /* If we've already received a PLOGI from this NPort 5490 * we don't need to try to discover it again. 5491 */ 5492 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5493 !(ndlp->nlp_type & 5494 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5495 return NULL; 5496 5497 ndlp->nlp_prev_state = ndlp->nlp_state; 5498 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5499 5500 spin_lock_irq(shost->host_lock); 5501 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5502 spin_unlock_irq(shost->host_lock); 5503 } else { 5504 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5505 "6456 Skip Setup RSCN Node x%x " 5506 "Data:x%x x%x x%x\n", 5507 ndlp->nlp_DID, ndlp->nlp_flag, 5508 ndlp->nlp_state, vport->fc_flag); 5509 ndlp = NULL; 5510 } 5511 } else { 5512 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5513 "6457 Setup Active Node 2B_DISC x%x " 5514 "Data:x%x x%x x%x\n", 5515 ndlp->nlp_DID, ndlp->nlp_flag, 5516 ndlp->nlp_state, vport->fc_flag); 5517 5518 /* If the initiator received a PLOGI from this NPort or if the 5519 * initiator is already in the process of discovery on it, 5520 * there's no need to try to discover it again. 5521 */ 5522 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5523 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5524 (!vport->phba->nvmet_support && 5525 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5526 return NULL; 5527 5528 if (vport->phba->nvmet_support) 5529 return ndlp; 5530 5531 /* Moving to NPR state clears unsolicited flags and 5532 * allows for rediscovery 5533 */ 5534 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5535 5536 spin_lock_irq(shost->host_lock); 5537 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5538 spin_unlock_irq(shost->host_lock); 5539 } 5540 return ndlp; 5541 } 5542 5543 /* Build a list of nodes to discover based on the loopmap */ 5544 void 5545 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5546 { 5547 struct lpfc_hba *phba = vport->phba; 5548 int j; 5549 uint32_t alpa, index; 5550 5551 if (!lpfc_is_link_up(phba)) 5552 return; 5553 5554 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5555 return; 5556 5557 /* Check for loop map present or not */ 5558 if (phba->alpa_map[0]) { 5559 for (j = 1; j <= phba->alpa_map[0]; j++) { 5560 alpa = phba->alpa_map[j]; 5561 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5562 continue; 5563 lpfc_setup_disc_node(vport, alpa); 5564 } 5565 } else { 5566 /* No alpamap, so try all alpa's */ 5567 for (j = 0; j < FC_MAXLOOP; j++) { 5568 /* If cfg_scan_down is set, start from highest 5569 * ALPA (0xef) to lowest (0x1). 5570 */ 5571 if (vport->cfg_scan_down) 5572 index = j; 5573 else 5574 index = FC_MAXLOOP - j - 1; 5575 alpa = lpfcAlpaArray[index]; 5576 if ((vport->fc_myDID & 0xff) == alpa) 5577 continue; 5578 lpfc_setup_disc_node(vport, alpa); 5579 } 5580 } 5581 return; 5582 } 5583 5584 /* SLI3 only */ 5585 void 5586 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5587 { 5588 LPFC_MBOXQ_t *mbox; 5589 struct lpfc_sli *psli = &phba->sli; 5590 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5591 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5592 int rc; 5593 5594 /* 5595 * if it's not a physical port or if we already send 5596 * clear_la then don't send it. 5597 */ 5598 if ((phba->link_state >= LPFC_CLEAR_LA) || 5599 (vport->port_type != LPFC_PHYSICAL_PORT) || 5600 (phba->sli_rev == LPFC_SLI_REV4)) 5601 return; 5602 5603 /* Link up discovery */ 5604 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5605 phba->link_state = LPFC_CLEAR_LA; 5606 lpfc_clear_la(phba, mbox); 5607 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5608 mbox->vport = vport; 5609 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5610 if (rc == MBX_NOT_FINISHED) { 5611 mempool_free(mbox, phba->mbox_mem_pool); 5612 lpfc_disc_flush_list(vport); 5613 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5614 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5615 phba->link_state = LPFC_HBA_ERROR; 5616 } 5617 } 5618 } 5619 5620 /* Reg_vpi to tell firmware to resume normal operations */ 5621 void 5622 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5623 { 5624 LPFC_MBOXQ_t *regvpimbox; 5625 5626 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5627 if (regvpimbox) { 5628 lpfc_reg_vpi(vport, regvpimbox); 5629 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5630 regvpimbox->vport = vport; 5631 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5632 == MBX_NOT_FINISHED) { 5633 mempool_free(regvpimbox, phba->mbox_mem_pool); 5634 } 5635 } 5636 } 5637 5638 /* Start Link up / RSCN discovery on NPR nodes */ 5639 void 5640 lpfc_disc_start(struct lpfc_vport *vport) 5641 { 5642 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5643 struct lpfc_hba *phba = vport->phba; 5644 uint32_t num_sent; 5645 uint32_t clear_la_pending; 5646 5647 if (!lpfc_is_link_up(phba)) { 5648 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5649 "3315 Link is not up %x\n", 5650 phba->link_state); 5651 return; 5652 } 5653 5654 if (phba->link_state == LPFC_CLEAR_LA) 5655 clear_la_pending = 1; 5656 else 5657 clear_la_pending = 0; 5658 5659 if (vport->port_state < LPFC_VPORT_READY) 5660 vport->port_state = LPFC_DISC_AUTH; 5661 5662 lpfc_set_disctmo(vport); 5663 5664 vport->fc_prevDID = vport->fc_myDID; 5665 vport->num_disc_nodes = 0; 5666 5667 /* Start Discovery state <hba_state> */ 5668 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5669 "0202 Start Discovery port state x%x " 5670 "flg x%x Data: x%x x%x x%x\n", 5671 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5672 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5673 5674 /* First do ADISCs - if any */ 5675 num_sent = lpfc_els_disc_adisc(vport); 5676 5677 if (num_sent) 5678 return; 5679 5680 /* Register the VPI for SLI3, NPIV only. */ 5681 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5682 !(vport->fc_flag & FC_PT2PT) && 5683 !(vport->fc_flag & FC_RSCN_MODE) && 5684 (phba->sli_rev < LPFC_SLI_REV4)) { 5685 lpfc_issue_clear_la(phba, vport); 5686 lpfc_issue_reg_vpi(phba, vport); 5687 return; 5688 } 5689 5690 /* 5691 * For SLI2, we need to set port_state to READY and continue 5692 * discovery. 5693 */ 5694 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5695 /* If we get here, there is nothing to ADISC */ 5696 lpfc_issue_clear_la(phba, vport); 5697 5698 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5699 vport->num_disc_nodes = 0; 5700 /* go thru NPR nodes and issue ELS PLOGIs */ 5701 if (vport->fc_npr_cnt) 5702 lpfc_els_disc_plogi(vport); 5703 5704 if (!vport->num_disc_nodes) { 5705 spin_lock_irq(shost->host_lock); 5706 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5707 spin_unlock_irq(shost->host_lock); 5708 lpfc_can_disctmo(vport); 5709 } 5710 } 5711 vport->port_state = LPFC_VPORT_READY; 5712 } else { 5713 /* Next do PLOGIs - if any */ 5714 num_sent = lpfc_els_disc_plogi(vport); 5715 5716 if (num_sent) 5717 return; 5718 5719 if (vport->fc_flag & FC_RSCN_MODE) { 5720 /* Check to see if more RSCNs came in while we 5721 * were processing this one. 5722 */ 5723 if ((vport->fc_rscn_id_cnt == 0) && 5724 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5725 spin_lock_irq(shost->host_lock); 5726 vport->fc_flag &= ~FC_RSCN_MODE; 5727 spin_unlock_irq(shost->host_lock); 5728 lpfc_can_disctmo(vport); 5729 } else 5730 lpfc_els_handle_rscn(vport); 5731 } 5732 } 5733 return; 5734 } 5735 5736 /* 5737 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5738 * ring the match the sppecified nodelist. 5739 */ 5740 static void 5741 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5742 { 5743 LIST_HEAD(completions); 5744 IOCB_t *icmd; 5745 struct lpfc_iocbq *iocb, *next_iocb; 5746 struct lpfc_sli_ring *pring; 5747 5748 pring = lpfc_phba_elsring(phba); 5749 if (unlikely(!pring)) 5750 return; 5751 5752 /* Error matching iocb on txq or txcmplq 5753 * First check the txq. 5754 */ 5755 spin_lock_irq(&phba->hbalock); 5756 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5757 if (iocb->context1 != ndlp) { 5758 continue; 5759 } 5760 icmd = &iocb->iocb; 5761 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5762 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5763 5764 list_move_tail(&iocb->list, &completions); 5765 } 5766 } 5767 5768 /* Next check the txcmplq */ 5769 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5770 if (iocb->context1 != ndlp) { 5771 continue; 5772 } 5773 icmd = &iocb->iocb; 5774 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5775 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5776 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5777 } 5778 } 5779 spin_unlock_irq(&phba->hbalock); 5780 5781 /* Cancel all the IOCBs from the completions list */ 5782 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5783 IOERR_SLI_ABORTED); 5784 } 5785 5786 static void 5787 lpfc_disc_flush_list(struct lpfc_vport *vport) 5788 { 5789 struct lpfc_nodelist *ndlp, *next_ndlp; 5790 struct lpfc_hba *phba = vport->phba; 5791 5792 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5793 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5794 nlp_listp) { 5795 if (!NLP_CHK_NODE_ACT(ndlp)) 5796 continue; 5797 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5798 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5799 lpfc_free_tx(phba, ndlp); 5800 } 5801 } 5802 } 5803 } 5804 5805 void 5806 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5807 { 5808 lpfc_els_flush_rscn(vport); 5809 lpfc_els_flush_cmd(vport); 5810 lpfc_disc_flush_list(vport); 5811 } 5812 5813 /*****************************************************************************/ 5814 /* 5815 * NAME: lpfc_disc_timeout 5816 * 5817 * FUNCTION: Fibre Channel driver discovery timeout routine. 5818 * 5819 * EXECUTION ENVIRONMENT: interrupt only 5820 * 5821 * CALLED FROM: 5822 * Timer function 5823 * 5824 * RETURNS: 5825 * none 5826 */ 5827 /*****************************************************************************/ 5828 void 5829 lpfc_disc_timeout(struct timer_list *t) 5830 { 5831 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5832 struct lpfc_hba *phba = vport->phba; 5833 uint32_t tmo_posted; 5834 unsigned long flags = 0; 5835 5836 if (unlikely(!phba)) 5837 return; 5838 5839 spin_lock_irqsave(&vport->work_port_lock, flags); 5840 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5841 if (!tmo_posted) 5842 vport->work_port_events |= WORKER_DISC_TMO; 5843 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5844 5845 if (!tmo_posted) 5846 lpfc_worker_wake_up(phba); 5847 return; 5848 } 5849 5850 static void 5851 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5852 { 5853 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5854 struct lpfc_hba *phba = vport->phba; 5855 struct lpfc_sli *psli = &phba->sli; 5856 struct lpfc_nodelist *ndlp, *next_ndlp; 5857 LPFC_MBOXQ_t *initlinkmbox; 5858 int rc, clrlaerr = 0; 5859 5860 if (!(vport->fc_flag & FC_DISC_TMO)) 5861 return; 5862 5863 spin_lock_irq(shost->host_lock); 5864 vport->fc_flag &= ~FC_DISC_TMO; 5865 spin_unlock_irq(shost->host_lock); 5866 5867 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5868 "disc timeout: state:x%x rtry:x%x flg:x%x", 5869 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5870 5871 switch (vport->port_state) { 5872 5873 case LPFC_LOCAL_CFG_LINK: 5874 /* 5875 * port_state is identically LPFC_LOCAL_CFG_LINK while 5876 * waiting for FAN timeout 5877 */ 5878 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5879 "0221 FAN timeout\n"); 5880 5881 /* Start discovery by sending FLOGI, clean up old rpis */ 5882 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5883 nlp_listp) { 5884 if (!NLP_CHK_NODE_ACT(ndlp)) 5885 continue; 5886 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5887 continue; 5888 if (ndlp->nlp_type & NLP_FABRIC) { 5889 /* Clean up the ndlp on Fabric connections */ 5890 lpfc_drop_node(vport, ndlp); 5891 5892 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5893 /* Fail outstanding IO now since device 5894 * is marked for PLOGI. 5895 */ 5896 lpfc_unreg_rpi(vport, ndlp); 5897 } 5898 } 5899 if (vport->port_state != LPFC_FLOGI) { 5900 if (phba->sli_rev <= LPFC_SLI_REV3) 5901 lpfc_initial_flogi(vport); 5902 else 5903 lpfc_issue_init_vfi(vport); 5904 return; 5905 } 5906 break; 5907 5908 case LPFC_FDISC: 5909 case LPFC_FLOGI: 5910 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5911 /* Initial FLOGI timeout */ 5912 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5913 "0222 Initial %s timeout\n", 5914 vport->vpi ? "FDISC" : "FLOGI"); 5915 5916 /* Assume no Fabric and go on with discovery. 5917 * Check for outstanding ELS FLOGI to abort. 5918 */ 5919 5920 /* FLOGI failed, so just use loop map to make discovery list */ 5921 lpfc_disc_list_loopmap(vport); 5922 5923 /* Start discovery */ 5924 lpfc_disc_start(vport); 5925 break; 5926 5927 case LPFC_FABRIC_CFG_LINK: 5928 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5929 NameServer login */ 5930 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5931 "0223 Timeout while waiting for " 5932 "NameServer login\n"); 5933 /* Next look for NameServer ndlp */ 5934 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5935 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5936 lpfc_els_abort(phba, ndlp); 5937 5938 /* ReStart discovery */ 5939 goto restart_disc; 5940 5941 case LPFC_NS_QRY: 5942 /* Check for wait for NameServer Rsp timeout */ 5943 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5944 "0224 NameServer Query timeout " 5945 "Data: x%x x%x\n", 5946 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5947 5948 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5949 /* Try it one more time */ 5950 vport->fc_ns_retry++; 5951 vport->gidft_inp = 0; 5952 rc = lpfc_issue_gidft(vport); 5953 if (rc == 0) 5954 break; 5955 } 5956 vport->fc_ns_retry = 0; 5957 5958 restart_disc: 5959 /* 5960 * Discovery is over. 5961 * set port_state to PORT_READY if SLI2. 5962 * cmpl_reg_vpi will set port_state to READY for SLI3. 5963 */ 5964 if (phba->sli_rev < LPFC_SLI_REV4) { 5965 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5966 lpfc_issue_reg_vpi(phba, vport); 5967 else { 5968 lpfc_issue_clear_la(phba, vport); 5969 vport->port_state = LPFC_VPORT_READY; 5970 } 5971 } 5972 5973 /* Setup and issue mailbox INITIALIZE LINK command */ 5974 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5975 if (!initlinkmbox) { 5976 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5977 "0206 Device Discovery " 5978 "completion error\n"); 5979 phba->link_state = LPFC_HBA_ERROR; 5980 break; 5981 } 5982 5983 lpfc_linkdown(phba); 5984 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5985 phba->cfg_link_speed); 5986 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5987 initlinkmbox->vport = vport; 5988 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5989 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5990 lpfc_set_loopback_flag(phba); 5991 if (rc == MBX_NOT_FINISHED) 5992 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5993 5994 break; 5995 5996 case LPFC_DISC_AUTH: 5997 /* Node Authentication timeout */ 5998 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5999 "0227 Node Authentication timeout\n"); 6000 lpfc_disc_flush_list(vport); 6001 6002 /* 6003 * set port_state to PORT_READY if SLI2. 6004 * cmpl_reg_vpi will set port_state to READY for SLI3. 6005 */ 6006 if (phba->sli_rev < LPFC_SLI_REV4) { 6007 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6008 lpfc_issue_reg_vpi(phba, vport); 6009 else { /* NPIV Not enabled */ 6010 lpfc_issue_clear_la(phba, vport); 6011 vport->port_state = LPFC_VPORT_READY; 6012 } 6013 } 6014 break; 6015 6016 case LPFC_VPORT_READY: 6017 if (vport->fc_flag & FC_RSCN_MODE) { 6018 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6019 "0231 RSCN timeout Data: x%x " 6020 "x%x\n", 6021 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6022 6023 /* Cleanup any outstanding ELS commands */ 6024 lpfc_els_flush_cmd(vport); 6025 6026 lpfc_els_flush_rscn(vport); 6027 lpfc_disc_flush_list(vport); 6028 } 6029 break; 6030 6031 default: 6032 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6033 "0273 Unexpected discovery timeout, " 6034 "vport State x%x\n", vport->port_state); 6035 break; 6036 } 6037 6038 switch (phba->link_state) { 6039 case LPFC_CLEAR_LA: 6040 /* CLEAR LA timeout */ 6041 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6042 "0228 CLEAR LA timeout\n"); 6043 clrlaerr = 1; 6044 break; 6045 6046 case LPFC_LINK_UP: 6047 lpfc_issue_clear_la(phba, vport); 6048 /* fall through */ 6049 case LPFC_LINK_UNKNOWN: 6050 case LPFC_WARM_START: 6051 case LPFC_INIT_START: 6052 case LPFC_INIT_MBX_CMDS: 6053 case LPFC_LINK_DOWN: 6054 case LPFC_HBA_ERROR: 6055 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6056 "0230 Unexpected timeout, hba link " 6057 "state x%x\n", phba->link_state); 6058 clrlaerr = 1; 6059 break; 6060 6061 case LPFC_HBA_READY: 6062 break; 6063 } 6064 6065 if (clrlaerr) { 6066 lpfc_disc_flush_list(vport); 6067 if (phba->sli_rev != LPFC_SLI_REV4) { 6068 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6069 ~LPFC_STOP_IOCB_EVENT; 6070 psli->sli3_ring[LPFC_FCP_RING].flag &= 6071 ~LPFC_STOP_IOCB_EVENT; 6072 } 6073 vport->port_state = LPFC_VPORT_READY; 6074 } 6075 return; 6076 } 6077 6078 /* 6079 * This routine handles processing a NameServer REG_LOGIN mailbox 6080 * command upon completion. It is setup in the LPFC_MBOXQ 6081 * as the completion routine when the command is 6082 * handed off to the SLI layer. 6083 */ 6084 void 6085 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6086 { 6087 MAILBOX_t *mb = &pmb->u.mb; 6088 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 6089 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6090 struct lpfc_vport *vport = pmb->vport; 6091 6092 pmb->ctx_buf = NULL; 6093 pmb->ctx_ndlp = NULL; 6094 6095 if (phba->sli_rev < LPFC_SLI_REV4) 6096 ndlp->nlp_rpi = mb->un.varWords[0]; 6097 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6098 ndlp->nlp_type |= NLP_FABRIC; 6099 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6100 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6101 "0004 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 6102 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6103 kref_read(&ndlp->kref), 6104 ndlp->nlp_usg_map, ndlp); 6105 /* 6106 * Start issuing Fabric-Device Management Interface (FDMI) command to 6107 * 0xfffffa (FDMI well known port). 6108 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6109 * DPRT -> RPRT (vports) 6110 */ 6111 if (vport->port_type == LPFC_PHYSICAL_PORT) 6112 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6113 else 6114 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6115 6116 6117 /* decrement the node reference count held for this callback 6118 * function. 6119 */ 6120 lpfc_nlp_put(ndlp); 6121 lpfc_mbuf_free(phba, mp->virt, mp->phys); 6122 kfree(mp); 6123 mempool_free(pmb, phba->mbox_mem_pool); 6124 6125 return; 6126 } 6127 6128 static int 6129 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6130 { 6131 uint16_t *rpi = param; 6132 6133 /* check for active node */ 6134 if (!NLP_CHK_NODE_ACT(ndlp)) 6135 return 0; 6136 6137 return ndlp->nlp_rpi == *rpi; 6138 } 6139 6140 static int 6141 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6142 { 6143 return memcmp(&ndlp->nlp_portname, param, 6144 sizeof(ndlp->nlp_portname)) == 0; 6145 } 6146 6147 static struct lpfc_nodelist * 6148 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6149 { 6150 struct lpfc_nodelist *ndlp; 6151 6152 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6153 if (filter(ndlp, param)) { 6154 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6155 "3185 FIND node filter %ps DID " 6156 "ndlp x%px did x%x flg x%x st x%x " 6157 "xri x%x type x%x rpi x%x\n", 6158 filter, ndlp, ndlp->nlp_DID, 6159 ndlp->nlp_flag, ndlp->nlp_state, 6160 ndlp->nlp_xri, ndlp->nlp_type, 6161 ndlp->nlp_rpi); 6162 return ndlp; 6163 } 6164 } 6165 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6166 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6167 return NULL; 6168 } 6169 6170 /* 6171 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6172 * returns the node list element pointer else return NULL. 6173 */ 6174 struct lpfc_nodelist * 6175 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6176 { 6177 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6178 } 6179 6180 /* 6181 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6182 * returns the node element list pointer else return NULL. 6183 */ 6184 struct lpfc_nodelist * 6185 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6186 { 6187 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6188 struct lpfc_nodelist *ndlp; 6189 6190 spin_lock_irq(shost->host_lock); 6191 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6192 spin_unlock_irq(shost->host_lock); 6193 return ndlp; 6194 } 6195 6196 /* 6197 * This routine looks up the ndlp lists for the given RPI. If the rpi 6198 * is found, the routine returns the node element list pointer else 6199 * return NULL. 6200 */ 6201 struct lpfc_nodelist * 6202 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6203 { 6204 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6205 struct lpfc_nodelist *ndlp; 6206 unsigned long flags; 6207 6208 spin_lock_irqsave(shost->host_lock, flags); 6209 ndlp = __lpfc_findnode_rpi(vport, rpi); 6210 spin_unlock_irqrestore(shost->host_lock, flags); 6211 return ndlp; 6212 } 6213 6214 /** 6215 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6216 * @phba: pointer to lpfc hba data structure. 6217 * @vpi: the physical host virtual N_Port identifier. 6218 * 6219 * This routine finds a vport on a HBA (referred by @phba) through a 6220 * @vpi. The function walks the HBA's vport list and returns the address 6221 * of the vport with the matching @vpi. 6222 * 6223 * Return code 6224 * NULL - No vport with the matching @vpi found 6225 * Otherwise - Address to the vport with the matching @vpi. 6226 **/ 6227 struct lpfc_vport * 6228 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6229 { 6230 struct lpfc_vport *vport; 6231 unsigned long flags; 6232 int i = 0; 6233 6234 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6235 if (vpi > 0) { 6236 /* 6237 * Translate the physical vpi to the logical vpi. The 6238 * vport stores the logical vpi. 6239 */ 6240 for (i = 0; i < phba->max_vpi; i++) { 6241 if (vpi == phba->vpi_ids[i]) 6242 break; 6243 } 6244 6245 if (i >= phba->max_vpi) { 6246 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 6247 "2936 Could not find Vport mapped " 6248 "to vpi %d\n", vpi); 6249 return NULL; 6250 } 6251 } 6252 6253 spin_lock_irqsave(&phba->port_list_lock, flags); 6254 list_for_each_entry(vport, &phba->port_list, listentry) { 6255 if (vport->vpi == i) { 6256 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6257 return vport; 6258 } 6259 } 6260 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6261 return NULL; 6262 } 6263 6264 struct lpfc_nodelist * 6265 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6266 { 6267 struct lpfc_nodelist *ndlp; 6268 int rpi = LPFC_RPI_ALLOC_ERROR; 6269 6270 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6271 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6272 if (rpi == LPFC_RPI_ALLOC_ERROR) 6273 return NULL; 6274 } 6275 6276 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6277 if (!ndlp) { 6278 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6279 lpfc_sli4_free_rpi(vport->phba, rpi); 6280 return NULL; 6281 } 6282 6283 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6284 6285 lpfc_initialize_node(vport, ndlp, did); 6286 INIT_LIST_HEAD(&ndlp->nlp_listp); 6287 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6288 ndlp->nlp_rpi = rpi; 6289 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6290 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6291 "flg:x%x refcnt:%d map:x%x\n", 6292 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6293 ndlp->nlp_flag, kref_read(&ndlp->kref), 6294 ndlp->nlp_usg_map); 6295 6296 ndlp->active_rrqs_xri_bitmap = 6297 mempool_alloc(vport->phba->active_rrq_pool, 6298 GFP_KERNEL); 6299 if (ndlp->active_rrqs_xri_bitmap) 6300 memset(ndlp->active_rrqs_xri_bitmap, 0, 6301 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6302 } 6303 6304 6305 6306 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6307 "node init: did:x%x", 6308 ndlp->nlp_DID, 0, 0); 6309 6310 return ndlp; 6311 } 6312 6313 /* This routine releases all resources associated with a specifc NPort's ndlp 6314 * and mempool_free's the nodelist. 6315 */ 6316 static void 6317 lpfc_nlp_release(struct kref *kref) 6318 { 6319 struct lpfc_hba *phba; 6320 unsigned long flags; 6321 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6322 kref); 6323 6324 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6325 "node release: did:x%x flg:x%x type:x%x", 6326 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6327 6328 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6329 "0279 %s: ndlp:x%px did %x " 6330 "usgmap:x%x refcnt:%d rpi:%x\n", 6331 __func__, 6332 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6333 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6334 6335 /* remove ndlp from action. */ 6336 lpfc_nlp_remove(ndlp->vport, ndlp); 6337 6338 /* clear the ndlp active flag for all release cases */ 6339 phba = ndlp->phba; 6340 spin_lock_irqsave(&phba->ndlp_lock, flags); 6341 NLP_CLR_NODE_ACT(ndlp); 6342 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6343 6344 /* free ndlp memory for final ndlp release */ 6345 if (NLP_CHK_FREE_REQ(ndlp)) { 6346 kfree(ndlp->lat_data); 6347 if (phba->sli_rev == LPFC_SLI_REV4) 6348 mempool_free(ndlp->active_rrqs_xri_bitmap, 6349 ndlp->phba->active_rrq_pool); 6350 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6351 } 6352 } 6353 6354 /* This routine bumps the reference count for a ndlp structure to ensure 6355 * that one discovery thread won't free a ndlp while another discovery thread 6356 * is using it. 6357 */ 6358 struct lpfc_nodelist * 6359 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6360 { 6361 struct lpfc_hba *phba; 6362 unsigned long flags; 6363 6364 if (ndlp) { 6365 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6366 "node get: did:x%x flg:x%x refcnt:x%x", 6367 ndlp->nlp_DID, ndlp->nlp_flag, 6368 kref_read(&ndlp->kref)); 6369 /* The check of ndlp usage to prevent incrementing the 6370 * ndlp reference count that is in the process of being 6371 * released. 6372 */ 6373 phba = ndlp->phba; 6374 spin_lock_irqsave(&phba->ndlp_lock, flags); 6375 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6376 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6377 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6378 "0276 %s: ndlp:x%px " 6379 "usgmap:x%x refcnt:%d\n", 6380 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6381 kref_read(&ndlp->kref)); 6382 return NULL; 6383 } else 6384 kref_get(&ndlp->kref); 6385 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6386 } 6387 return ndlp; 6388 } 6389 6390 /* This routine decrements the reference count for a ndlp structure. If the 6391 * count goes to 0, this indicates the the associated nodelist should be 6392 * freed. Returning 1 indicates the ndlp resource has been released; on the 6393 * other hand, returning 0 indicates the ndlp resource has not been released 6394 * yet. 6395 */ 6396 int 6397 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6398 { 6399 struct lpfc_hba *phba; 6400 unsigned long flags; 6401 6402 if (!ndlp) 6403 return 1; 6404 6405 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6406 "node put: did:x%x flg:x%x refcnt:x%x", 6407 ndlp->nlp_DID, ndlp->nlp_flag, 6408 kref_read(&ndlp->kref)); 6409 phba = ndlp->phba; 6410 spin_lock_irqsave(&phba->ndlp_lock, flags); 6411 /* Check the ndlp memory free acknowledge flag to avoid the 6412 * possible race condition that kref_put got invoked again 6413 * after previous one has done ndlp memory free. 6414 */ 6415 if (NLP_CHK_FREE_ACK(ndlp)) { 6416 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6417 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6418 "0274 %s: ndlp:x%px " 6419 "usgmap:x%x refcnt:%d\n", 6420 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6421 kref_read(&ndlp->kref)); 6422 return 1; 6423 } 6424 /* Check the ndlp inactivate log flag to avoid the possible 6425 * race condition that kref_put got invoked again after ndlp 6426 * is already in inactivating state. 6427 */ 6428 if (NLP_CHK_IACT_REQ(ndlp)) { 6429 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6430 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6431 "0275 %s: ndlp:x%px " 6432 "usgmap:x%x refcnt:%d\n", 6433 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6434 kref_read(&ndlp->kref)); 6435 return 1; 6436 } 6437 /* For last put, mark the ndlp usage flags to make sure no 6438 * other kref_get and kref_put on the same ndlp shall get 6439 * in between the process when the final kref_put has been 6440 * invoked on this ndlp. 6441 */ 6442 if (kref_read(&ndlp->kref) == 1) { 6443 /* Indicate ndlp is put to inactive state. */ 6444 NLP_SET_IACT_REQ(ndlp); 6445 /* Acknowledge ndlp memory free has been seen. */ 6446 if (NLP_CHK_FREE_REQ(ndlp)) 6447 NLP_SET_FREE_ACK(ndlp); 6448 } 6449 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6450 /* Note, the kref_put returns 1 when decrementing a reference 6451 * count that was 1, it invokes the release callback function, 6452 * but it still left the reference count as 1 (not actually 6453 * performs the last decrementation). Otherwise, it actually 6454 * decrements the reference count and returns 0. 6455 */ 6456 return kref_put(&ndlp->kref, lpfc_nlp_release); 6457 } 6458 6459 /* This routine free's the specified nodelist if it is not in use 6460 * by any other discovery thread. This routine returns 1 if the 6461 * ndlp has been freed. A return value of 0 indicates the ndlp is 6462 * not yet been released. 6463 */ 6464 int 6465 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6466 { 6467 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6468 "node not used: did:x%x flg:x%x refcnt:x%x", 6469 ndlp->nlp_DID, ndlp->nlp_flag, 6470 kref_read(&ndlp->kref)); 6471 if (kref_read(&ndlp->kref) == 1) 6472 if (lpfc_nlp_put(ndlp)) 6473 return 1; 6474 return 0; 6475 } 6476 6477 /** 6478 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6479 * @phba: Pointer to hba context object. 6480 * 6481 * This function iterate through all FC nodes associated 6482 * will all vports to check if there is any node with 6483 * fc_rports associated with it. If there is an fc_rport 6484 * associated with the node, then the node is either in 6485 * discovered state or its devloss_timer is pending. 6486 */ 6487 static int 6488 lpfc_fcf_inuse(struct lpfc_hba *phba) 6489 { 6490 struct lpfc_vport **vports; 6491 int i, ret = 0; 6492 struct lpfc_nodelist *ndlp; 6493 struct Scsi_Host *shost; 6494 6495 vports = lpfc_create_vport_work_array(phba); 6496 6497 /* If driver cannot allocate memory, indicate fcf is in use */ 6498 if (!vports) 6499 return 1; 6500 6501 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6502 shost = lpfc_shost_from_vport(vports[i]); 6503 spin_lock_irq(shost->host_lock); 6504 /* 6505 * IF the CVL_RCVD bit is not set then we have sent the 6506 * flogi. 6507 * If dev_loss fires while we are waiting we do not want to 6508 * unreg the fcf. 6509 */ 6510 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6511 spin_unlock_irq(shost->host_lock); 6512 ret = 1; 6513 goto out; 6514 } 6515 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6516 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6517 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6518 ret = 1; 6519 spin_unlock_irq(shost->host_lock); 6520 goto out; 6521 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6522 ret = 1; 6523 lpfc_printf_log(phba, KERN_INFO, 6524 LOG_NODE | LOG_DISCOVERY, 6525 "2624 RPI %x DID %x flag %x " 6526 "still logged in\n", 6527 ndlp->nlp_rpi, ndlp->nlp_DID, 6528 ndlp->nlp_flag); 6529 } 6530 } 6531 spin_unlock_irq(shost->host_lock); 6532 } 6533 out: 6534 lpfc_destroy_vport_work_array(phba, vports); 6535 return ret; 6536 } 6537 6538 /** 6539 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6540 * @phba: Pointer to hba context object. 6541 * @mboxq: Pointer to mailbox object. 6542 * 6543 * This function frees memory associated with the mailbox command. 6544 */ 6545 void 6546 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6547 { 6548 struct lpfc_vport *vport = mboxq->vport; 6549 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6550 6551 if (mboxq->u.mb.mbxStatus) { 6552 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6553 "2555 UNREG_VFI mbxStatus error x%x " 6554 "HBA state x%x\n", 6555 mboxq->u.mb.mbxStatus, vport->port_state); 6556 } 6557 spin_lock_irq(shost->host_lock); 6558 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6559 spin_unlock_irq(shost->host_lock); 6560 mempool_free(mboxq, phba->mbox_mem_pool); 6561 return; 6562 } 6563 6564 /** 6565 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6566 * @phba: Pointer to hba context object. 6567 * @mboxq: Pointer to mailbox object. 6568 * 6569 * This function frees memory associated with the mailbox command. 6570 */ 6571 static void 6572 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6573 { 6574 struct lpfc_vport *vport = mboxq->vport; 6575 6576 if (mboxq->u.mb.mbxStatus) { 6577 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6578 "2550 UNREG_FCFI mbxStatus error x%x " 6579 "HBA state x%x\n", 6580 mboxq->u.mb.mbxStatus, vport->port_state); 6581 } 6582 mempool_free(mboxq, phba->mbox_mem_pool); 6583 return; 6584 } 6585 6586 /** 6587 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6588 * @phba: Pointer to hba context object. 6589 * 6590 * This function prepare the HBA for unregistering the currently registered 6591 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6592 * VFIs. 6593 */ 6594 int 6595 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6596 { 6597 struct lpfc_vport **vports; 6598 struct lpfc_nodelist *ndlp; 6599 struct Scsi_Host *shost; 6600 int i = 0, rc; 6601 6602 /* Unregister RPIs */ 6603 if (lpfc_fcf_inuse(phba)) 6604 lpfc_unreg_hba_rpis(phba); 6605 6606 /* At this point, all discovery is aborted */ 6607 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6608 6609 /* Unregister VPIs */ 6610 vports = lpfc_create_vport_work_array(phba); 6611 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6612 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6613 /* Stop FLOGI/FDISC retries */ 6614 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6615 if (ndlp) 6616 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6617 lpfc_cleanup_pending_mbox(vports[i]); 6618 if (phba->sli_rev == LPFC_SLI_REV4) 6619 lpfc_sli4_unreg_all_rpis(vports[i]); 6620 lpfc_mbx_unreg_vpi(vports[i]); 6621 shost = lpfc_shost_from_vport(vports[i]); 6622 spin_lock_irq(shost->host_lock); 6623 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6624 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6625 spin_unlock_irq(shost->host_lock); 6626 } 6627 lpfc_destroy_vport_work_array(phba, vports); 6628 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6629 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6630 if (ndlp) 6631 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6632 lpfc_cleanup_pending_mbox(phba->pport); 6633 if (phba->sli_rev == LPFC_SLI_REV4) 6634 lpfc_sli4_unreg_all_rpis(phba->pport); 6635 lpfc_mbx_unreg_vpi(phba->pport); 6636 shost = lpfc_shost_from_vport(phba->pport); 6637 spin_lock_irq(shost->host_lock); 6638 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6639 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6640 spin_unlock_irq(shost->host_lock); 6641 } 6642 6643 /* Cleanup any outstanding ELS commands */ 6644 lpfc_els_flush_all_cmd(phba); 6645 6646 /* Unregister the physical port VFI */ 6647 rc = lpfc_issue_unreg_vfi(phba->pport); 6648 return rc; 6649 } 6650 6651 /** 6652 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6653 * @phba: Pointer to hba context object. 6654 * 6655 * This function issues synchronous unregister FCF mailbox command to HBA to 6656 * unregister the currently registered FCF record. The driver does not reset 6657 * the driver FCF usage state flags. 6658 * 6659 * Return 0 if successfully issued, none-zero otherwise. 6660 */ 6661 int 6662 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6663 { 6664 LPFC_MBOXQ_t *mbox; 6665 int rc; 6666 6667 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6668 if (!mbox) { 6669 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6670 "2551 UNREG_FCFI mbox allocation failed" 6671 "HBA state x%x\n", phba->pport->port_state); 6672 return -ENOMEM; 6673 } 6674 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6675 mbox->vport = phba->pport; 6676 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6677 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6678 6679 if (rc == MBX_NOT_FINISHED) { 6680 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6681 "2552 Unregister FCFI command failed rc x%x " 6682 "HBA state x%x\n", 6683 rc, phba->pport->port_state); 6684 return -EINVAL; 6685 } 6686 return 0; 6687 } 6688 6689 /** 6690 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6691 * @phba: Pointer to hba context object. 6692 * 6693 * This function unregisters the currently reigstered FCF. This function 6694 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6695 */ 6696 void 6697 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6698 { 6699 int rc; 6700 6701 /* Preparation for unregistering fcf */ 6702 rc = lpfc_unregister_fcf_prep(phba); 6703 if (rc) { 6704 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6705 "2748 Failed to prepare for unregistering " 6706 "HBA's FCF record: rc=%d\n", rc); 6707 return; 6708 } 6709 6710 /* Now, unregister FCF record and reset HBA FCF state */ 6711 rc = lpfc_sli4_unregister_fcf(phba); 6712 if (rc) 6713 return; 6714 /* Reset HBA FCF states after successful unregister FCF */ 6715 phba->fcf.fcf_flag = 0; 6716 phba->fcf.current_rec.flag = 0; 6717 6718 /* 6719 * If driver is not unloading, check if there is any other 6720 * FCF record that can be used for discovery. 6721 */ 6722 if ((phba->pport->load_flag & FC_UNLOADING) || 6723 (phba->link_state < LPFC_LINK_UP)) 6724 return; 6725 6726 /* This is considered as the initial FCF discovery scan */ 6727 spin_lock_irq(&phba->hbalock); 6728 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6729 spin_unlock_irq(&phba->hbalock); 6730 6731 /* Reset FCF roundrobin bmask for new discovery */ 6732 lpfc_sli4_clear_fcf_rr_bmask(phba); 6733 6734 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6735 6736 if (rc) { 6737 spin_lock_irq(&phba->hbalock); 6738 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6739 spin_unlock_irq(&phba->hbalock); 6740 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6741 "2553 lpfc_unregister_unused_fcf failed " 6742 "to read FCF record HBA state x%x\n", 6743 phba->pport->port_state); 6744 } 6745 } 6746 6747 /** 6748 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6749 * @phba: Pointer to hba context object. 6750 * 6751 * This function just unregisters the currently reigstered FCF. It does not 6752 * try to find another FCF for discovery. 6753 */ 6754 void 6755 lpfc_unregister_fcf(struct lpfc_hba *phba) 6756 { 6757 int rc; 6758 6759 /* Preparation for unregistering fcf */ 6760 rc = lpfc_unregister_fcf_prep(phba); 6761 if (rc) { 6762 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6763 "2749 Failed to prepare for unregistering " 6764 "HBA's FCF record: rc=%d\n", rc); 6765 return; 6766 } 6767 6768 /* Now, unregister FCF record and reset HBA FCF state */ 6769 rc = lpfc_sli4_unregister_fcf(phba); 6770 if (rc) 6771 return; 6772 /* Set proper HBA FCF states after successful unregister FCF */ 6773 spin_lock_irq(&phba->hbalock); 6774 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6775 spin_unlock_irq(&phba->hbalock); 6776 } 6777 6778 /** 6779 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6780 * @phba: Pointer to hba context object. 6781 * 6782 * This function check if there are any connected remote port for the FCF and 6783 * if all the devices are disconnected, this function unregister FCFI. 6784 * This function also tries to use another FCF for discovery. 6785 */ 6786 void 6787 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6788 { 6789 /* 6790 * If HBA is not running in FIP mode, if HBA does not support 6791 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6792 * registered, do nothing. 6793 */ 6794 spin_lock_irq(&phba->hbalock); 6795 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6796 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6797 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6798 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6799 (phba->pport->port_state == LPFC_FLOGI)) { 6800 spin_unlock_irq(&phba->hbalock); 6801 return; 6802 } 6803 spin_unlock_irq(&phba->hbalock); 6804 6805 if (lpfc_fcf_inuse(phba)) 6806 return; 6807 6808 lpfc_unregister_fcf_rescan(phba); 6809 } 6810 6811 /** 6812 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6813 * @phba: Pointer to hba context object. 6814 * @buff: Buffer containing the FCF connection table as in the config 6815 * region. 6816 * This function create driver data structure for the FCF connection 6817 * record table read from config region 23. 6818 */ 6819 static void 6820 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6821 uint8_t *buff) 6822 { 6823 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6824 struct lpfc_fcf_conn_hdr *conn_hdr; 6825 struct lpfc_fcf_conn_rec *conn_rec; 6826 uint32_t record_count; 6827 int i; 6828 6829 /* Free the current connect table */ 6830 list_for_each_entry_safe(conn_entry, next_conn_entry, 6831 &phba->fcf_conn_rec_list, list) { 6832 list_del_init(&conn_entry->list); 6833 kfree(conn_entry); 6834 } 6835 6836 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6837 record_count = conn_hdr->length * sizeof(uint32_t)/ 6838 sizeof(struct lpfc_fcf_conn_rec); 6839 6840 conn_rec = (struct lpfc_fcf_conn_rec *) 6841 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6842 6843 for (i = 0; i < record_count; i++) { 6844 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6845 continue; 6846 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6847 GFP_KERNEL); 6848 if (!conn_entry) { 6849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6850 "2566 Failed to allocate connection" 6851 " table entry\n"); 6852 return; 6853 } 6854 6855 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6856 sizeof(struct lpfc_fcf_conn_rec)); 6857 list_add_tail(&conn_entry->list, 6858 &phba->fcf_conn_rec_list); 6859 } 6860 6861 if (!list_empty(&phba->fcf_conn_rec_list)) { 6862 i = 0; 6863 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6864 list) { 6865 conn_rec = &conn_entry->conn_rec; 6866 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6867 "3345 FCF connection list rec[%02d]: " 6868 "flags:x%04x, vtag:x%04x, " 6869 "fabric_name:x%02x:%02x:%02x:%02x:" 6870 "%02x:%02x:%02x:%02x, " 6871 "switch_name:x%02x:%02x:%02x:%02x:" 6872 "%02x:%02x:%02x:%02x\n", i++, 6873 conn_rec->flags, conn_rec->vlan_tag, 6874 conn_rec->fabric_name[0], 6875 conn_rec->fabric_name[1], 6876 conn_rec->fabric_name[2], 6877 conn_rec->fabric_name[3], 6878 conn_rec->fabric_name[4], 6879 conn_rec->fabric_name[5], 6880 conn_rec->fabric_name[6], 6881 conn_rec->fabric_name[7], 6882 conn_rec->switch_name[0], 6883 conn_rec->switch_name[1], 6884 conn_rec->switch_name[2], 6885 conn_rec->switch_name[3], 6886 conn_rec->switch_name[4], 6887 conn_rec->switch_name[5], 6888 conn_rec->switch_name[6], 6889 conn_rec->switch_name[7]); 6890 } 6891 } 6892 } 6893 6894 /** 6895 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6896 * @phba: Pointer to hba context object. 6897 * @buff: Buffer containing the FCoE parameter data structure. 6898 * 6899 * This function update driver data structure with config 6900 * parameters read from config region 23. 6901 */ 6902 static void 6903 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6904 uint8_t *buff) 6905 { 6906 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6907 struct lpfc_fcoe_params *fcoe_param; 6908 6909 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6910 buff; 6911 fcoe_param = (struct lpfc_fcoe_params *) 6912 (buff + sizeof(struct lpfc_fip_param_hdr)); 6913 6914 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6915 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6916 return; 6917 6918 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6919 phba->valid_vlan = 1; 6920 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6921 0xFFF; 6922 } 6923 6924 phba->fc_map[0] = fcoe_param->fc_map[0]; 6925 phba->fc_map[1] = fcoe_param->fc_map[1]; 6926 phba->fc_map[2] = fcoe_param->fc_map[2]; 6927 return; 6928 } 6929 6930 /** 6931 * lpfc_get_rec_conf23 - Get a record type in config region data. 6932 * @buff: Buffer containing config region 23 data. 6933 * @size: Size of the data buffer. 6934 * @rec_type: Record type to be searched. 6935 * 6936 * This function searches config region data to find the beginning 6937 * of the record specified by record_type. If record found, this 6938 * function return pointer to the record else return NULL. 6939 */ 6940 static uint8_t * 6941 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6942 { 6943 uint32_t offset = 0, rec_length; 6944 6945 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6946 (size < sizeof(uint32_t))) 6947 return NULL; 6948 6949 rec_length = buff[offset + 1]; 6950 6951 /* 6952 * One TLV record has one word header and number of data words 6953 * specified in the rec_length field of the record header. 6954 */ 6955 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6956 <= size) { 6957 if (buff[offset] == rec_type) 6958 return &buff[offset]; 6959 6960 if (buff[offset] == LPFC_REGION23_LAST_REC) 6961 return NULL; 6962 6963 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6964 rec_length = buff[offset + 1]; 6965 } 6966 return NULL; 6967 } 6968 6969 /** 6970 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6971 * @phba: Pointer to lpfc_hba data structure. 6972 * @buff: Buffer containing config region 23 data. 6973 * @size: Size of the data buffer. 6974 * 6975 * This function parses the FCoE config parameters in config region 23 and 6976 * populate driver data structure with the parameters. 6977 */ 6978 void 6979 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6980 uint8_t *buff, 6981 uint32_t size) 6982 { 6983 uint32_t offset = 0; 6984 uint8_t *rec_ptr; 6985 6986 /* 6987 * If data size is less than 2 words signature and version cannot be 6988 * verified. 6989 */ 6990 if (size < 2*sizeof(uint32_t)) 6991 return; 6992 6993 /* Check the region signature first */ 6994 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6996 "2567 Config region 23 has bad signature\n"); 6997 return; 6998 } 6999 7000 offset += 4; 7001 7002 /* Check the data structure version */ 7003 if (buff[offset] != LPFC_REGION23_VERSION) { 7004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7005 "2568 Config region 23 has bad version\n"); 7006 return; 7007 } 7008 offset += 4; 7009 7010 /* Read FCoE param record */ 7011 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7012 size - offset, FCOE_PARAM_TYPE); 7013 if (rec_ptr) 7014 lpfc_read_fcoe_param(phba, rec_ptr); 7015 7016 /* Read FCF connection table */ 7017 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7018 size - offset, FCOE_CONN_TBL_TYPE); 7019 if (rec_ptr) 7020 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7021 7022 } 7023