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 <linux/nvme-fc-driver.h> 40 41 #include "lpfc_hw4.h" 42 #include "lpfc_hw.h" 43 #include "lpfc_nl.h" 44 #include "lpfc_disc.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc.h" 48 #include "lpfc_scsi.h" 49 #include "lpfc_nvme.h" 50 #include "lpfc_logmsg.h" 51 #include "lpfc_crtn.h" 52 #include "lpfc_vport.h" 53 #include "lpfc_debugfs.h" 54 55 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 56 static uint8_t lpfcAlpaArray[] = { 57 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 58 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 59 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 60 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 61 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 62 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 63 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 64 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 65 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 66 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 67 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 68 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 69 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 70 }; 71 72 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 73 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 74 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 75 static int lpfc_fcf_inuse(struct lpfc_hba *); 76 77 void 78 lpfc_terminate_rport_io(struct fc_rport *rport) 79 { 80 struct lpfc_rport_data *rdata; 81 struct lpfc_nodelist * ndlp; 82 struct lpfc_hba *phba; 83 84 rdata = rport->dd_data; 85 ndlp = rdata->pnode; 86 87 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 88 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 89 printk(KERN_ERR "Cannot find remote node" 90 " to terminate I/O Data x%x\n", 91 rport->port_id); 92 return; 93 } 94 95 phba = ndlp->phba; 96 97 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 98 "rport terminate: sid:x%x did:x%x flg:x%x", 99 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 100 101 if (ndlp->nlp_sid != NLP_NO_SID) { 102 lpfc_sli_abort_iocb(ndlp->vport, 103 &phba->sli.sli3_ring[LPFC_FCP_RING], 104 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 105 } 106 } 107 108 /* 109 * This function will be called when dev_loss_tmo fire. 110 */ 111 void 112 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 113 { 114 struct lpfc_rport_data *rdata; 115 struct lpfc_nodelist * ndlp; 116 struct lpfc_vport *vport; 117 struct Scsi_Host *shost; 118 struct lpfc_hba *phba; 119 struct lpfc_work_evt *evtp; 120 int put_node; 121 int put_rport; 122 unsigned long iflags; 123 124 rdata = rport->dd_data; 125 ndlp = rdata->pnode; 126 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 127 return; 128 129 vport = ndlp->vport; 130 phba = vport->phba; 131 132 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 133 "rport devlosscb: sid:x%x did:x%x flg:x%x", 134 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 135 136 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 137 "3181 dev_loss_callbk x%06x, rport x%px flg x%x\n", 138 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 139 140 /* Don't defer this if we are in the process of deleting the vport 141 * or unloading the driver. The unload will cleanup the node 142 * appropriately we just need to cleanup the ndlp rport info here. 143 */ 144 if (vport->load_flag & FC_UNLOADING) { 145 put_node = rdata->pnode != NULL; 146 put_rport = ndlp->rport != NULL; 147 rdata->pnode = NULL; 148 ndlp->rport = NULL; 149 if (put_node) 150 lpfc_nlp_put(ndlp); 151 if (put_rport) 152 put_device(&rport->dev); 153 return; 154 } 155 156 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 157 return; 158 159 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 160 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 161 "6789 rport name %llx != node port name %llx", 162 rport->port_name, 163 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 164 165 evtp = &ndlp->dev_loss_evt; 166 167 if (!list_empty(&evtp->evt_listp)) { 168 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 169 "6790 rport name %llx dev_loss_evt pending", 170 rport->port_name); 171 return; 172 } 173 174 shost = lpfc_shost_from_vport(vport); 175 spin_lock_irqsave(shost->host_lock, iflags); 176 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 177 spin_unlock_irqrestore(shost->host_lock, iflags); 178 179 /* We need to hold the node by incrementing the reference 180 * count until this queued work is done 181 */ 182 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 183 184 spin_lock_irqsave(&phba->hbalock, iflags); 185 if (evtp->evt_arg1) { 186 evtp->evt = LPFC_EVT_DEV_LOSS; 187 list_add_tail(&evtp->evt_listp, &phba->work_list); 188 lpfc_worker_wake_up(phba); 189 } 190 spin_unlock_irqrestore(&phba->hbalock, iflags); 191 192 return; 193 } 194 195 /** 196 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 197 * @ndlp: Pointer to remote node object. 198 * 199 * This function is called from the worker thread when devloss timeout timer 200 * expires. For SLI4 host, this routine shall return 1 when at lease one 201 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 202 * routine shall return 0 when there is no remote node is still in use of FCF 203 * when devloss timeout happened to this @ndlp. 204 **/ 205 static int 206 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 207 { 208 struct lpfc_rport_data *rdata; 209 struct fc_rport *rport; 210 struct lpfc_vport *vport; 211 struct lpfc_hba *phba; 212 struct Scsi_Host *shost; 213 uint8_t *name; 214 int put_node; 215 int warn_on = 0; 216 int fcf_inuse = 0; 217 unsigned long iflags; 218 219 rport = ndlp->rport; 220 vport = ndlp->vport; 221 shost = lpfc_shost_from_vport(vport); 222 223 spin_lock_irqsave(shost->host_lock, iflags); 224 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 225 spin_unlock_irqrestore(shost->host_lock, iflags); 226 227 if (!rport) 228 return fcf_inuse; 229 230 name = (uint8_t *) &ndlp->nlp_portname; 231 phba = vport->phba; 232 233 if (phba->sli_rev == LPFC_SLI_REV4) 234 fcf_inuse = lpfc_fcf_inuse(phba); 235 236 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 237 "rport devlosstmo:did:x%x type:x%x id:x%x", 238 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 239 240 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 241 "3182 dev_loss_tmo_handler x%06x, rport x%px flg x%x\n", 242 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 243 244 /* 245 * lpfc_nlp_remove if reached with dangling rport drops the 246 * reference. To make sure that does not happen clear rport 247 * pointer in ndlp before lpfc_nlp_put. 248 */ 249 rdata = rport->dd_data; 250 251 /* Don't defer this if we are in the process of deleting the vport 252 * or unloading the driver. The unload will cleanup the node 253 * appropriately we just need to cleanup the ndlp rport info here. 254 */ 255 if (vport->load_flag & FC_UNLOADING) { 256 if (ndlp->nlp_sid != NLP_NO_SID) { 257 /* flush the target */ 258 lpfc_sli_abort_iocb(vport, 259 &phba->sli.sli3_ring[LPFC_FCP_RING], 260 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 261 } 262 put_node = rdata->pnode != NULL; 263 rdata->pnode = NULL; 264 ndlp->rport = NULL; 265 if (put_node) 266 lpfc_nlp_put(ndlp); 267 put_device(&rport->dev); 268 269 return fcf_inuse; 270 } 271 272 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 273 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 274 "0284 Devloss timeout Ignored on " 275 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 276 "NPort x%x\n", 277 *name, *(name+1), *(name+2), *(name+3), 278 *(name+4), *(name+5), *(name+6), *(name+7), 279 ndlp->nlp_DID); 280 return fcf_inuse; 281 } 282 283 put_node = rdata->pnode != NULL; 284 rdata->pnode = NULL; 285 ndlp->rport = NULL; 286 if (put_node) 287 lpfc_nlp_put(ndlp); 288 put_device(&rport->dev); 289 290 if (ndlp->nlp_type & NLP_FABRIC) 291 return fcf_inuse; 292 293 if (ndlp->nlp_sid != NLP_NO_SID) { 294 warn_on = 1; 295 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 296 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 297 } 298 299 if (warn_on) { 300 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 301 "0203 Devloss timeout on " 302 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 303 "NPort x%06x Data: x%x x%x x%x\n", 304 *name, *(name+1), *(name+2), *(name+3), 305 *(name+4), *(name+5), *(name+6), *(name+7), 306 ndlp->nlp_DID, ndlp->nlp_flag, 307 ndlp->nlp_state, ndlp->nlp_rpi); 308 } else { 309 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 310 "0204 Devloss timeout on " 311 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 312 "NPort x%06x Data: x%x x%x x%x\n", 313 *name, *(name+1), *(name+2), *(name+3), 314 *(name+4), *(name+5), *(name+6), *(name+7), 315 ndlp->nlp_DID, ndlp->nlp_flag, 316 ndlp->nlp_state, ndlp->nlp_rpi); 317 } 318 319 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 320 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 321 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 322 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 323 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 324 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 325 326 return fcf_inuse; 327 } 328 329 /** 330 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 331 * @phba: Pointer to hba context object. 332 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 333 * @nlp_did: remote node identifer with devloss timeout. 334 * 335 * This function is called from the worker thread after invoking devloss 336 * timeout handler and releasing the reference count for the ndlp with 337 * which the devloss timeout was handled for SLI4 host. For the devloss 338 * timeout of the last remote node which had been in use of FCF, when this 339 * routine is invoked, it shall be guaranteed that none of the remote are 340 * in-use of FCF. When devloss timeout to the last remote using the FCF, 341 * if the FIP engine is neither in FCF table scan process nor roundrobin 342 * failover process, the in-use FCF shall be unregistered. If the FIP 343 * engine is in FCF discovery process, the devloss timeout state shall 344 * be set for either the FCF table scan process or roundrobin failover 345 * process to unregister the in-use FCF. 346 **/ 347 static void 348 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 349 uint32_t nlp_did) 350 { 351 /* If devloss timeout happened to a remote node when FCF had no 352 * longer been in-use, do nothing. 353 */ 354 if (!fcf_inuse) 355 return; 356 357 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 358 spin_lock_irq(&phba->hbalock); 359 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 360 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 361 spin_unlock_irq(&phba->hbalock); 362 return; 363 } 364 phba->hba_flag |= HBA_DEVLOSS_TMO; 365 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 366 "2847 Last remote node (x%x) using " 367 "FCF devloss tmo\n", nlp_did); 368 } 369 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 370 spin_unlock_irq(&phba->hbalock); 371 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 372 "2868 Devloss tmo to FCF rediscovery " 373 "in progress\n"); 374 return; 375 } 376 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 377 spin_unlock_irq(&phba->hbalock); 378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 379 "2869 Devloss tmo to idle FIP engine, " 380 "unreg in-use FCF and rescan.\n"); 381 /* Unregister in-use FCF and rescan */ 382 lpfc_unregister_fcf_rescan(phba); 383 return; 384 } 385 spin_unlock_irq(&phba->hbalock); 386 if (phba->hba_flag & FCF_TS_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2870 FCF table scan in progress\n"); 389 if (phba->hba_flag & FCF_RR_INPROG) 390 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 391 "2871 FLOGI roundrobin FCF failover " 392 "in progress\n"); 393 } 394 lpfc_unregister_unused_fcf(phba); 395 } 396 397 /** 398 * lpfc_alloc_fast_evt - Allocates data structure for posting event 399 * @phba: Pointer to hba context object. 400 * 401 * This function is called from the functions which need to post 402 * events from interrupt context. This function allocates data 403 * structure required for posting event. It also keeps track of 404 * number of events pending and prevent event storm when there are 405 * too many events. 406 **/ 407 struct lpfc_fast_path_event * 408 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 409 struct lpfc_fast_path_event *ret; 410 411 /* If there are lot of fast event do not exhaust memory due to this */ 412 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 413 return NULL; 414 415 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 416 GFP_ATOMIC); 417 if (ret) { 418 atomic_inc(&phba->fast_event_count); 419 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 420 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 421 } 422 return ret; 423 } 424 425 /** 426 * lpfc_free_fast_evt - Frees event data structure 427 * @phba: Pointer to hba context object. 428 * @evt: Event object which need to be freed. 429 * 430 * This function frees the data structure required for posting 431 * events. 432 **/ 433 void 434 lpfc_free_fast_evt(struct lpfc_hba *phba, 435 struct lpfc_fast_path_event *evt) { 436 437 atomic_dec(&phba->fast_event_count); 438 kfree(evt); 439 } 440 441 /** 442 * lpfc_send_fastpath_evt - Posts events generated from fast path 443 * @phba: Pointer to hba context object. 444 * @evtp: Event data structure. 445 * 446 * This function is called from worker thread, when the interrupt 447 * context need to post an event. This function posts the event 448 * to fc transport netlink interface. 449 **/ 450 static void 451 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 452 struct lpfc_work_evt *evtp) 453 { 454 unsigned long evt_category, evt_sub_category; 455 struct lpfc_fast_path_event *fast_evt_data; 456 char *evt_data; 457 uint32_t evt_data_size; 458 struct Scsi_Host *shost; 459 460 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 461 work_evt); 462 463 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 464 evt_sub_category = (unsigned long) fast_evt_data->un. 465 fabric_evt.subcategory; 466 shost = lpfc_shost_from_vport(fast_evt_data->vport); 467 if (evt_category == FC_REG_FABRIC_EVENT) { 468 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 469 evt_data = (char *) &fast_evt_data->un.read_check_error; 470 evt_data_size = sizeof(fast_evt_data->un. 471 read_check_error); 472 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 473 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 474 evt_data = (char *) &fast_evt_data->un.fabric_evt; 475 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 476 } else { 477 lpfc_free_fast_evt(phba, fast_evt_data); 478 return; 479 } 480 } else if (evt_category == FC_REG_SCSI_EVENT) { 481 switch (evt_sub_category) { 482 case LPFC_EVENT_QFULL: 483 case LPFC_EVENT_DEVBSY: 484 evt_data = (char *) &fast_evt_data->un.scsi_evt; 485 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 486 break; 487 case LPFC_EVENT_CHECK_COND: 488 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 489 evt_data_size = sizeof(fast_evt_data->un. 490 check_cond_evt); 491 break; 492 case LPFC_EVENT_VARQUEDEPTH: 493 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 494 evt_data_size = sizeof(fast_evt_data->un. 495 queue_depth_evt); 496 break; 497 default: 498 lpfc_free_fast_evt(phba, fast_evt_data); 499 return; 500 } 501 } else { 502 lpfc_free_fast_evt(phba, fast_evt_data); 503 return; 504 } 505 506 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 507 fc_host_post_vendor_event(shost, 508 fc_get_event_number(), 509 evt_data_size, 510 evt_data, 511 LPFC_NL_VENDOR_ID); 512 513 lpfc_free_fast_evt(phba, fast_evt_data); 514 return; 515 } 516 517 static void 518 lpfc_work_list_done(struct lpfc_hba *phba) 519 { 520 struct lpfc_work_evt *evtp = NULL; 521 struct lpfc_nodelist *ndlp; 522 int free_evt; 523 int fcf_inuse; 524 uint32_t nlp_did; 525 526 spin_lock_irq(&phba->hbalock); 527 while (!list_empty(&phba->work_list)) { 528 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 529 evt_listp); 530 spin_unlock_irq(&phba->hbalock); 531 free_evt = 1; 532 switch (evtp->evt) { 533 case LPFC_EVT_ELS_RETRY: 534 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 535 lpfc_els_retry_delay_handler(ndlp); 536 free_evt = 0; /* evt is part of ndlp */ 537 /* decrement the node reference count held 538 * for this queued work 539 */ 540 lpfc_nlp_put(ndlp); 541 break; 542 case LPFC_EVT_DEV_LOSS: 543 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 544 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 545 free_evt = 0; 546 /* decrement the node reference count held for 547 * this queued work 548 */ 549 nlp_did = ndlp->nlp_DID; 550 lpfc_nlp_put(ndlp); 551 if (phba->sli_rev == LPFC_SLI_REV4) 552 lpfc_sli4_post_dev_loss_tmo_handler(phba, 553 fcf_inuse, 554 nlp_did); 555 break; 556 case LPFC_EVT_ONLINE: 557 if (phba->link_state < LPFC_LINK_DOWN) 558 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 559 else 560 *(int *) (evtp->evt_arg1) = 0; 561 complete((struct completion *)(evtp->evt_arg2)); 562 break; 563 case LPFC_EVT_OFFLINE_PREP: 564 if (phba->link_state >= LPFC_LINK_DOWN) 565 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 566 *(int *)(evtp->evt_arg1) = 0; 567 complete((struct completion *)(evtp->evt_arg2)); 568 break; 569 case LPFC_EVT_OFFLINE: 570 lpfc_offline(phba); 571 lpfc_sli_brdrestart(phba); 572 *(int *)(evtp->evt_arg1) = 573 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 574 lpfc_unblock_mgmt_io(phba); 575 complete((struct completion *)(evtp->evt_arg2)); 576 break; 577 case LPFC_EVT_WARM_START: 578 lpfc_offline(phba); 579 lpfc_reset_barrier(phba); 580 lpfc_sli_brdreset(phba); 581 lpfc_hba_down_post(phba); 582 *(int *)(evtp->evt_arg1) = 583 lpfc_sli_brdready(phba, HS_MBRDY); 584 lpfc_unblock_mgmt_io(phba); 585 complete((struct completion *)(evtp->evt_arg2)); 586 break; 587 case LPFC_EVT_KILL: 588 lpfc_offline(phba); 589 *(int *)(evtp->evt_arg1) 590 = (phba->pport->stopped) 591 ? 0 : lpfc_sli_brdkill(phba); 592 lpfc_unblock_mgmt_io(phba); 593 complete((struct completion *)(evtp->evt_arg2)); 594 break; 595 case LPFC_EVT_FASTPATH_MGMT_EVT: 596 lpfc_send_fastpath_evt(phba, evtp); 597 free_evt = 0; 598 break; 599 case LPFC_EVT_RESET_HBA: 600 if (!(phba->pport->load_flag & FC_UNLOADING)) 601 lpfc_reset_hba(phba); 602 break; 603 } 604 if (free_evt) 605 kfree(evtp); 606 spin_lock_irq(&phba->hbalock); 607 } 608 spin_unlock_irq(&phba->hbalock); 609 610 } 611 612 static void 613 lpfc_work_done(struct lpfc_hba *phba) 614 { 615 struct lpfc_sli_ring *pring; 616 uint32_t ha_copy, status, control, work_port_events; 617 struct lpfc_vport **vports; 618 struct lpfc_vport *vport; 619 int i; 620 621 spin_lock_irq(&phba->hbalock); 622 ha_copy = phba->work_ha; 623 phba->work_ha = 0; 624 spin_unlock_irq(&phba->hbalock); 625 626 /* First, try to post the next mailbox command to SLI4 device */ 627 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 628 lpfc_sli4_post_async_mbox(phba); 629 630 if (ha_copy & HA_ERATT) 631 /* Handle the error attention event */ 632 lpfc_handle_eratt(phba); 633 634 if (ha_copy & HA_MBATT) 635 lpfc_sli_handle_mb_event(phba); 636 637 if (ha_copy & HA_LATT) 638 lpfc_handle_latt(phba); 639 640 /* Process SLI4 events */ 641 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 642 if (phba->hba_flag & HBA_RRQ_ACTIVE) 643 lpfc_handle_rrq_active(phba); 644 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 645 lpfc_sli4_els_xri_abort_event_proc(phba); 646 if (phba->hba_flag & ASYNC_EVENT) 647 lpfc_sli4_async_event_proc(phba); 648 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 649 spin_lock_irq(&phba->hbalock); 650 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 651 spin_unlock_irq(&phba->hbalock); 652 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 653 } 654 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 655 lpfc_sli4_fcf_redisc_event_proc(phba); 656 } 657 658 vports = lpfc_create_vport_work_array(phba); 659 if (vports != NULL) 660 for (i = 0; i <= phba->max_vports; i++) { 661 /* 662 * We could have no vports in array if unloading, so if 663 * this happens then just use the pport 664 */ 665 if (vports[i] == NULL && i == 0) 666 vport = phba->pport; 667 else 668 vport = vports[i]; 669 if (vport == NULL) 670 break; 671 spin_lock_irq(&vport->work_port_lock); 672 work_port_events = vport->work_port_events; 673 vport->work_port_events &= ~work_port_events; 674 spin_unlock_irq(&vport->work_port_lock); 675 if (work_port_events & WORKER_DISC_TMO) 676 lpfc_disc_timeout_handler(vport); 677 if (work_port_events & WORKER_ELS_TMO) 678 lpfc_els_timeout_handler(vport); 679 if (work_port_events & WORKER_HB_TMO) 680 lpfc_hb_timeout_handler(phba); 681 if (work_port_events & WORKER_MBOX_TMO) 682 lpfc_mbox_timeout_handler(phba); 683 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 684 lpfc_unblock_fabric_iocbs(phba); 685 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 686 lpfc_ramp_down_queue_handler(phba); 687 if (work_port_events & WORKER_DELAYED_DISC_TMO) 688 lpfc_delayed_disc_timeout_handler(vport); 689 } 690 lpfc_destroy_vport_work_array(phba, vports); 691 692 pring = lpfc_phba_elsring(phba); 693 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 694 status >>= (4*LPFC_ELS_RING); 695 if (pring && (status & HA_RXMASK || 696 pring->flag & LPFC_DEFERRED_RING_EVENT || 697 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 698 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 699 pring->flag |= LPFC_DEFERRED_RING_EVENT; 700 /* Preserve legacy behavior. */ 701 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 702 set_bit(LPFC_DATA_READY, &phba->data_flags); 703 } else { 704 /* Driver could have abort request completed in queue 705 * when link goes down. Allow for this transition. 706 */ 707 if (phba->link_state >= LPFC_LINK_DOWN || 708 phba->link_flag & LS_MDS_LOOPBACK) { 709 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 710 lpfc_sli_handle_slow_ring_event(phba, pring, 711 (status & 712 HA_RXMASK)); 713 } 714 } 715 if (phba->sli_rev == LPFC_SLI_REV4) 716 lpfc_drain_txq(phba); 717 /* 718 * Turn on Ring interrupts 719 */ 720 if (phba->sli_rev <= LPFC_SLI_REV3) { 721 spin_lock_irq(&phba->hbalock); 722 control = readl(phba->HCregaddr); 723 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 724 lpfc_debugfs_slow_ring_trc(phba, 725 "WRK Enable ring: cntl:x%x hacopy:x%x", 726 control, ha_copy, 0); 727 728 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 729 writel(control, phba->HCregaddr); 730 readl(phba->HCregaddr); /* flush */ 731 } else { 732 lpfc_debugfs_slow_ring_trc(phba, 733 "WRK Ring ok: cntl:x%x hacopy:x%x", 734 control, ha_copy, 0); 735 } 736 spin_unlock_irq(&phba->hbalock); 737 } 738 } 739 lpfc_work_list_done(phba); 740 } 741 742 int 743 lpfc_do_work(void *p) 744 { 745 struct lpfc_hba *phba = p; 746 int rc; 747 748 set_user_nice(current, MIN_NICE); 749 current->flags |= PF_NOFREEZE; 750 phba->data_flags = 0; 751 752 while (!kthread_should_stop()) { 753 /* wait and check worker queue activities */ 754 rc = wait_event_interruptible(phba->work_waitq, 755 (test_and_clear_bit(LPFC_DATA_READY, 756 &phba->data_flags) 757 || kthread_should_stop())); 758 /* Signal wakeup shall terminate the worker thread */ 759 if (rc) { 760 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 761 "0433 Wakeup on signal: rc=x%x\n", rc); 762 break; 763 } 764 765 /* Attend pending lpfc data processing */ 766 lpfc_work_done(phba); 767 } 768 phba->worker_thread = NULL; 769 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 770 "0432 Worker thread stopped.\n"); 771 return 0; 772 } 773 774 /* 775 * This is only called to handle FC worker events. Since this a rare 776 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 777 * embedding it in the IOCB. 778 */ 779 int 780 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 781 uint32_t evt) 782 { 783 struct lpfc_work_evt *evtp; 784 unsigned long flags; 785 786 /* 787 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 788 * be queued to worker thread for processing 789 */ 790 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 791 if (!evtp) 792 return 0; 793 794 evtp->evt_arg1 = arg1; 795 evtp->evt_arg2 = arg2; 796 evtp->evt = evt; 797 798 spin_lock_irqsave(&phba->hbalock, flags); 799 list_add_tail(&evtp->evt_listp, &phba->work_list); 800 spin_unlock_irqrestore(&phba->hbalock, flags); 801 802 lpfc_worker_wake_up(phba); 803 804 return 1; 805 } 806 807 void 808 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 809 { 810 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 811 struct lpfc_hba *phba = vport->phba; 812 struct lpfc_nodelist *ndlp, *next_ndlp; 813 814 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 815 if (!NLP_CHK_NODE_ACT(ndlp)) 816 continue; 817 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 818 continue; 819 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 820 ((vport->port_type == LPFC_NPIV_PORT) && 821 (ndlp->nlp_DID == NameServer_DID))) 822 lpfc_unreg_rpi(vport, ndlp); 823 824 /* Leave Fabric nodes alone on link down */ 825 if ((phba->sli_rev < LPFC_SLI_REV4) && 826 (!remove && ndlp->nlp_type & NLP_FABRIC)) 827 continue; 828 lpfc_disc_state_machine(vport, ndlp, NULL, 829 remove 830 ? NLP_EVT_DEVICE_RM 831 : NLP_EVT_DEVICE_RECOVERY); 832 } 833 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 834 if (phba->sli_rev == LPFC_SLI_REV4) 835 lpfc_sli4_unreg_all_rpis(vport); 836 lpfc_mbx_unreg_vpi(vport); 837 spin_lock_irq(shost->host_lock); 838 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 839 spin_unlock_irq(shost->host_lock); 840 } 841 } 842 843 void 844 lpfc_port_link_failure(struct lpfc_vport *vport) 845 { 846 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 847 848 /* Cleanup any outstanding received buffers */ 849 lpfc_cleanup_rcv_buffers(vport); 850 851 /* Cleanup any outstanding RSCN activity */ 852 lpfc_els_flush_rscn(vport); 853 854 /* Cleanup any outstanding ELS commands */ 855 lpfc_els_flush_cmd(vport); 856 857 lpfc_cleanup_rpis(vport, 0); 858 859 /* Turn off discovery timer if its running */ 860 lpfc_can_disctmo(vport); 861 } 862 863 void 864 lpfc_linkdown_port(struct lpfc_vport *vport) 865 { 866 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 867 868 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 869 fc_host_post_event(shost, fc_get_event_number(), 870 FCH_EVT_LINKDOWN, 0); 871 872 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 873 "Link Down: state:x%x rtry:x%x flg:x%x", 874 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 875 876 lpfc_port_link_failure(vport); 877 878 /* Stop delayed Nport discovery */ 879 spin_lock_irq(shost->host_lock); 880 vport->fc_flag &= ~FC_DISC_DELAYED; 881 spin_unlock_irq(shost->host_lock); 882 del_timer_sync(&vport->delayed_disc_tmo); 883 } 884 885 int 886 lpfc_linkdown(struct lpfc_hba *phba) 887 { 888 struct lpfc_vport *vport = phba->pport; 889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 890 struct lpfc_vport **vports; 891 LPFC_MBOXQ_t *mb; 892 int i; 893 894 if (phba->link_state == LPFC_LINK_DOWN) 895 return 0; 896 897 /* Block all SCSI stack I/Os */ 898 lpfc_scsi_dev_block(phba); 899 900 phba->defer_flogi_acc_flag = false; 901 902 spin_lock_irq(&phba->hbalock); 903 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 904 spin_unlock_irq(&phba->hbalock); 905 if (phba->link_state > LPFC_LINK_DOWN) { 906 phba->link_state = LPFC_LINK_DOWN; 907 if (phba->sli4_hba.conf_trunk) { 908 phba->trunk_link.link0.state = 0; 909 phba->trunk_link.link1.state = 0; 910 phba->trunk_link.link2.state = 0; 911 phba->trunk_link.link3.state = 0; 912 phba->sli4_hba.link_state.logical_speed = 913 LPFC_LINK_SPEED_UNKNOWN; 914 } 915 spin_lock_irq(shost->host_lock); 916 phba->pport->fc_flag &= ~FC_LBIT; 917 spin_unlock_irq(shost->host_lock); 918 } 919 vports = lpfc_create_vport_work_array(phba); 920 if (vports != NULL) { 921 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 922 /* Issue a LINK DOWN event to all nodes */ 923 lpfc_linkdown_port(vports[i]); 924 925 vports[i]->fc_myDID = 0; 926 927 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 928 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 929 if (phba->nvmet_support) 930 lpfc_nvmet_update_targetport(phba); 931 else 932 lpfc_nvme_update_localport(vports[i]); 933 } 934 } 935 } 936 lpfc_destroy_vport_work_array(phba, vports); 937 938 /* Clean up any SLI3 firmware default rpi's */ 939 if (phba->sli_rev > LPFC_SLI_REV3) 940 goto skip_unreg_did; 941 942 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 943 if (mb) { 944 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 945 mb->vport = vport; 946 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 947 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 948 == MBX_NOT_FINISHED) { 949 mempool_free(mb, phba->mbox_mem_pool); 950 } 951 } 952 953 skip_unreg_did: 954 /* Setup myDID for link up if we are in pt2pt mode */ 955 if (phba->pport->fc_flag & FC_PT2PT) { 956 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 957 if (mb) { 958 lpfc_config_link(phba, mb); 959 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 960 mb->vport = vport; 961 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 962 == MBX_NOT_FINISHED) { 963 mempool_free(mb, phba->mbox_mem_pool); 964 } 965 } 966 spin_lock_irq(shost->host_lock); 967 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 968 phba->pport->rcv_flogi_cnt = 0; 969 spin_unlock_irq(shost->host_lock); 970 } 971 return 0; 972 } 973 974 static void 975 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 976 { 977 struct lpfc_nodelist *ndlp; 978 979 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 980 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 981 if (!NLP_CHK_NODE_ACT(ndlp)) 982 continue; 983 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 984 continue; 985 if (ndlp->nlp_type & NLP_FABRIC) { 986 /* On Linkup its safe to clean up the ndlp 987 * from Fabric connections. 988 */ 989 if (ndlp->nlp_DID != Fabric_DID) 990 lpfc_unreg_rpi(vport, ndlp); 991 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 992 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 993 /* Fail outstanding IO now since device is 994 * marked for PLOGI. 995 */ 996 lpfc_unreg_rpi(vport, ndlp); 997 } 998 } 999 } 1000 1001 static void 1002 lpfc_linkup_port(struct lpfc_vport *vport) 1003 { 1004 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1005 struct lpfc_hba *phba = vport->phba; 1006 1007 if ((vport->load_flag & FC_UNLOADING) != 0) 1008 return; 1009 1010 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1011 "Link Up: top:x%x speed:x%x flg:x%x", 1012 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1013 1014 /* If NPIV is not enabled, only bring the physical port up */ 1015 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1016 (vport != phba->pport)) 1017 return; 1018 1019 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1020 fc_host_post_event(shost, fc_get_event_number(), 1021 FCH_EVT_LINKUP, 0); 1022 1023 spin_lock_irq(shost->host_lock); 1024 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1025 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1026 vport->fc_flag |= FC_NDISC_ACTIVE; 1027 vport->fc_ns_retry = 0; 1028 spin_unlock_irq(shost->host_lock); 1029 1030 if (vport->fc_flag & FC_LBIT) 1031 lpfc_linkup_cleanup_nodes(vport); 1032 1033 } 1034 1035 static int 1036 lpfc_linkup(struct lpfc_hba *phba) 1037 { 1038 struct lpfc_vport **vports; 1039 int i; 1040 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1041 1042 phba->link_state = LPFC_LINK_UP; 1043 1044 /* Unblock fabric iocbs if they are blocked */ 1045 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1046 del_timer_sync(&phba->fabric_block_timer); 1047 1048 vports = lpfc_create_vport_work_array(phba); 1049 if (vports != NULL) 1050 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1051 lpfc_linkup_port(vports[i]); 1052 lpfc_destroy_vport_work_array(phba, vports); 1053 1054 /* Clear the pport flogi counter in case the link down was 1055 * absorbed without an ACQE. No lock here - in worker thread 1056 * and discovery is synchronized. 1057 */ 1058 spin_lock_irq(shost->host_lock); 1059 phba->pport->rcv_flogi_cnt = 0; 1060 spin_unlock_irq(shost->host_lock); 1061 1062 /* reinitialize initial FLOGI flag */ 1063 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1064 phba->defer_flogi_acc_flag = false; 1065 1066 return 0; 1067 } 1068 1069 /* 1070 * This routine handles processing a CLEAR_LA mailbox 1071 * command upon completion. It is setup in the LPFC_MBOXQ 1072 * as the completion routine when the command is 1073 * handed off to the SLI layer. SLI3 only. 1074 */ 1075 static void 1076 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1077 { 1078 struct lpfc_vport *vport = pmb->vport; 1079 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1080 struct lpfc_sli *psli = &phba->sli; 1081 MAILBOX_t *mb = &pmb->u.mb; 1082 uint32_t control; 1083 1084 /* Since we don't do discovery right now, turn these off here */ 1085 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1086 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1087 1088 /* Check for error */ 1089 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1090 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1091 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1092 "0320 CLEAR_LA mbxStatus error x%x hba " 1093 "state x%x\n", 1094 mb->mbxStatus, vport->port_state); 1095 phba->link_state = LPFC_HBA_ERROR; 1096 goto out; 1097 } 1098 1099 if (vport->port_type == LPFC_PHYSICAL_PORT) 1100 phba->link_state = LPFC_HBA_READY; 1101 1102 spin_lock_irq(&phba->hbalock); 1103 psli->sli_flag |= LPFC_PROCESS_LA; 1104 control = readl(phba->HCregaddr); 1105 control |= HC_LAINT_ENA; 1106 writel(control, phba->HCregaddr); 1107 readl(phba->HCregaddr); /* flush */ 1108 spin_unlock_irq(&phba->hbalock); 1109 mempool_free(pmb, phba->mbox_mem_pool); 1110 return; 1111 1112 out: 1113 /* Device Discovery completes */ 1114 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1115 "0225 Device Discovery completes\n"); 1116 mempool_free(pmb, phba->mbox_mem_pool); 1117 1118 spin_lock_irq(shost->host_lock); 1119 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1120 spin_unlock_irq(shost->host_lock); 1121 1122 lpfc_can_disctmo(vport); 1123 1124 /* turn on Link Attention interrupts */ 1125 1126 spin_lock_irq(&phba->hbalock); 1127 psli->sli_flag |= LPFC_PROCESS_LA; 1128 control = readl(phba->HCregaddr); 1129 control |= HC_LAINT_ENA; 1130 writel(control, phba->HCregaddr); 1131 readl(phba->HCregaddr); /* flush */ 1132 spin_unlock_irq(&phba->hbalock); 1133 1134 return; 1135 } 1136 1137 1138 void 1139 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1140 { 1141 struct lpfc_vport *vport = pmb->vport; 1142 1143 if (pmb->u.mb.mbxStatus) 1144 goto out; 1145 1146 mempool_free(pmb, phba->mbox_mem_pool); 1147 1148 /* don't perform discovery for SLI4 loopback diagnostic test */ 1149 if ((phba->sli_rev == LPFC_SLI_REV4) && 1150 !(phba->hba_flag & HBA_FCOE_MODE) && 1151 (phba->link_flag & LS_LOOPBACK_MODE)) 1152 return; 1153 1154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1155 vport->fc_flag & FC_PUBLIC_LOOP && 1156 !(vport->fc_flag & FC_LBIT)) { 1157 /* Need to wait for FAN - use discovery timer 1158 * for timeout. port_state is identically 1159 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1160 */ 1161 lpfc_set_disctmo(vport); 1162 return; 1163 } 1164 1165 /* Start discovery by sending a FLOGI. port_state is identically 1166 * LPFC_FLOGI while waiting for FLOGI cmpl. Check if sending 1167 * the FLOGI is being deferred till after MBX_READ_SPARAM completes. 1168 */ 1169 if (vport->port_state != LPFC_FLOGI) { 1170 if (!(phba->hba_flag & HBA_DEFER_FLOGI)) 1171 lpfc_initial_flogi(vport); 1172 } else { 1173 if (vport->fc_flag & FC_PT2PT) 1174 lpfc_disc_start(vport); 1175 } 1176 return; 1177 1178 out: 1179 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1180 "0306 CONFIG_LINK mbxStatus error x%x " 1181 "HBA state x%x\n", 1182 pmb->u.mb.mbxStatus, vport->port_state); 1183 mempool_free(pmb, phba->mbox_mem_pool); 1184 1185 lpfc_linkdown(phba); 1186 1187 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1188 "0200 CONFIG_LINK bad hba state x%x\n", 1189 vport->port_state); 1190 1191 lpfc_issue_clear_la(phba, vport); 1192 return; 1193 } 1194 1195 /** 1196 * lpfc_sli4_clear_fcf_rr_bmask 1197 * @phba pointer to the struct lpfc_hba for this port. 1198 * This fucnction resets the round robin bit mask and clears the 1199 * fcf priority list. The list deletions are done while holding the 1200 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1201 * from the lpfc_fcf_pri record. 1202 **/ 1203 void 1204 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1205 { 1206 struct lpfc_fcf_pri *fcf_pri; 1207 struct lpfc_fcf_pri *next_fcf_pri; 1208 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1209 spin_lock_irq(&phba->hbalock); 1210 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1211 &phba->fcf.fcf_pri_list, list) { 1212 list_del_init(&fcf_pri->list); 1213 fcf_pri->fcf_rec.flag = 0; 1214 } 1215 spin_unlock_irq(&phba->hbalock); 1216 } 1217 static void 1218 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1219 { 1220 struct lpfc_vport *vport = mboxq->vport; 1221 1222 if (mboxq->u.mb.mbxStatus) { 1223 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1224 "2017 REG_FCFI mbxStatus error x%x " 1225 "HBA state x%x\n", 1226 mboxq->u.mb.mbxStatus, vport->port_state); 1227 goto fail_out; 1228 } 1229 1230 /* Start FCoE discovery by sending a FLOGI. */ 1231 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1232 /* Set the FCFI registered flag */ 1233 spin_lock_irq(&phba->hbalock); 1234 phba->fcf.fcf_flag |= FCF_REGISTERED; 1235 spin_unlock_irq(&phba->hbalock); 1236 1237 /* If there is a pending FCoE event, restart FCF table scan. */ 1238 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1239 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1240 goto fail_out; 1241 1242 /* Mark successful completion of FCF table scan */ 1243 spin_lock_irq(&phba->hbalock); 1244 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1245 phba->hba_flag &= ~FCF_TS_INPROG; 1246 if (vport->port_state != LPFC_FLOGI) { 1247 phba->hba_flag |= FCF_RR_INPROG; 1248 spin_unlock_irq(&phba->hbalock); 1249 lpfc_issue_init_vfi(vport); 1250 goto out; 1251 } 1252 spin_unlock_irq(&phba->hbalock); 1253 goto out; 1254 1255 fail_out: 1256 spin_lock_irq(&phba->hbalock); 1257 phba->hba_flag &= ~FCF_RR_INPROG; 1258 spin_unlock_irq(&phba->hbalock); 1259 out: 1260 mempool_free(mboxq, phba->mbox_mem_pool); 1261 } 1262 1263 /** 1264 * lpfc_fab_name_match - Check if the fcf fabric name match. 1265 * @fab_name: pointer to fabric name. 1266 * @new_fcf_record: pointer to fcf record. 1267 * 1268 * This routine compare the fcf record's fabric name with provided 1269 * fabric name. If the fabric name are identical this function 1270 * returns 1 else return 0. 1271 **/ 1272 static uint32_t 1273 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1274 { 1275 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1276 return 0; 1277 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1278 return 0; 1279 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1280 return 0; 1281 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1282 return 0; 1283 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1284 return 0; 1285 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1286 return 0; 1287 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1288 return 0; 1289 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1290 return 0; 1291 return 1; 1292 } 1293 1294 /** 1295 * lpfc_sw_name_match - Check if the fcf switch name match. 1296 * @fab_name: pointer to fabric name. 1297 * @new_fcf_record: pointer to fcf record. 1298 * 1299 * This routine compare the fcf record's switch name with provided 1300 * switch name. If the switch name are identical this function 1301 * returns 1 else return 0. 1302 **/ 1303 static uint32_t 1304 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1305 { 1306 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1307 return 0; 1308 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1309 return 0; 1310 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1311 return 0; 1312 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1313 return 0; 1314 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1315 return 0; 1316 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1317 return 0; 1318 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1319 return 0; 1320 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1321 return 0; 1322 return 1; 1323 } 1324 1325 /** 1326 * lpfc_mac_addr_match - Check if the fcf mac address match. 1327 * @mac_addr: pointer to mac address. 1328 * @new_fcf_record: pointer to fcf record. 1329 * 1330 * This routine compare the fcf record's mac address with HBA's 1331 * FCF mac address. If the mac addresses are identical this function 1332 * returns 1 else return 0. 1333 **/ 1334 static uint32_t 1335 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1336 { 1337 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1338 return 0; 1339 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1340 return 0; 1341 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1342 return 0; 1343 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1344 return 0; 1345 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1346 return 0; 1347 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1348 return 0; 1349 return 1; 1350 } 1351 1352 static bool 1353 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1354 { 1355 return (curr_vlan_id == new_vlan_id); 1356 } 1357 1358 /** 1359 * lpfc_update_fcf_record - Update driver fcf record 1360 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1361 * @phba: pointer to lpfc hba data structure. 1362 * @fcf_index: Index for the lpfc_fcf_record. 1363 * @new_fcf_record: pointer to hba fcf record. 1364 * 1365 * This routine updates the driver FCF priority record from the new HBA FCF 1366 * record. This routine is called with the host lock held. 1367 **/ 1368 static void 1369 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1370 struct fcf_record *new_fcf_record 1371 ) 1372 { 1373 struct lpfc_fcf_pri *fcf_pri; 1374 1375 lockdep_assert_held(&phba->hbalock); 1376 1377 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1378 fcf_pri->fcf_rec.fcf_index = fcf_index; 1379 /* FCF record priority */ 1380 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1381 1382 } 1383 1384 /** 1385 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1386 * @fcf: pointer to driver fcf record. 1387 * @new_fcf_record: pointer to fcf record. 1388 * 1389 * This routine copies the FCF information from the FCF 1390 * record to lpfc_hba data structure. 1391 **/ 1392 static void 1393 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1394 struct fcf_record *new_fcf_record) 1395 { 1396 /* Fabric name */ 1397 fcf_rec->fabric_name[0] = 1398 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1399 fcf_rec->fabric_name[1] = 1400 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1401 fcf_rec->fabric_name[2] = 1402 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1403 fcf_rec->fabric_name[3] = 1404 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1405 fcf_rec->fabric_name[4] = 1406 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1407 fcf_rec->fabric_name[5] = 1408 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1409 fcf_rec->fabric_name[6] = 1410 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1411 fcf_rec->fabric_name[7] = 1412 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1413 /* Mac address */ 1414 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1415 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1416 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1417 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1418 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1419 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1420 /* FCF record index */ 1421 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1422 /* FCF record priority */ 1423 fcf_rec->priority = new_fcf_record->fip_priority; 1424 /* Switch name */ 1425 fcf_rec->switch_name[0] = 1426 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1427 fcf_rec->switch_name[1] = 1428 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1429 fcf_rec->switch_name[2] = 1430 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1431 fcf_rec->switch_name[3] = 1432 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1433 fcf_rec->switch_name[4] = 1434 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1435 fcf_rec->switch_name[5] = 1436 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1437 fcf_rec->switch_name[6] = 1438 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1439 fcf_rec->switch_name[7] = 1440 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1441 } 1442 1443 /** 1444 * lpfc_update_fcf_record - Update driver fcf record 1445 * @phba: pointer to lpfc hba data structure. 1446 * @fcf_rec: pointer to driver fcf record. 1447 * @new_fcf_record: pointer to hba fcf record. 1448 * @addr_mode: address mode to be set to the driver fcf record. 1449 * @vlan_id: vlan tag to be set to the driver fcf record. 1450 * @flag: flag bits to be set to the driver fcf record. 1451 * 1452 * This routine updates the driver FCF record from the new HBA FCF record 1453 * together with the address mode, vlan_id, and other informations. This 1454 * routine is called with the host lock held. 1455 **/ 1456 static void 1457 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1458 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1459 uint16_t vlan_id, uint32_t flag) 1460 { 1461 lockdep_assert_held(&phba->hbalock); 1462 1463 /* Copy the fields from the HBA's FCF record */ 1464 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1465 /* Update other fields of driver FCF record */ 1466 fcf_rec->addr_mode = addr_mode; 1467 fcf_rec->vlan_id = vlan_id; 1468 fcf_rec->flag |= (flag | RECORD_VALID); 1469 __lpfc_update_fcf_record_pri(phba, 1470 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1471 new_fcf_record); 1472 } 1473 1474 /** 1475 * lpfc_register_fcf - Register the FCF with hba. 1476 * @phba: pointer to lpfc hba data structure. 1477 * 1478 * This routine issues a register fcfi mailbox command to register 1479 * the fcf with HBA. 1480 **/ 1481 static void 1482 lpfc_register_fcf(struct lpfc_hba *phba) 1483 { 1484 LPFC_MBOXQ_t *fcf_mbxq; 1485 int rc; 1486 1487 spin_lock_irq(&phba->hbalock); 1488 /* If the FCF is not available do nothing. */ 1489 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1490 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1491 spin_unlock_irq(&phba->hbalock); 1492 return; 1493 } 1494 1495 /* The FCF is already registered, start discovery */ 1496 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1497 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1498 phba->hba_flag &= ~FCF_TS_INPROG; 1499 if (phba->pport->port_state != LPFC_FLOGI && 1500 phba->pport->fc_flag & FC_FABRIC) { 1501 phba->hba_flag |= FCF_RR_INPROG; 1502 spin_unlock_irq(&phba->hbalock); 1503 lpfc_initial_flogi(phba->pport); 1504 return; 1505 } 1506 spin_unlock_irq(&phba->hbalock); 1507 return; 1508 } 1509 spin_unlock_irq(&phba->hbalock); 1510 1511 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1512 if (!fcf_mbxq) { 1513 spin_lock_irq(&phba->hbalock); 1514 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1515 spin_unlock_irq(&phba->hbalock); 1516 return; 1517 } 1518 1519 lpfc_reg_fcfi(phba, fcf_mbxq); 1520 fcf_mbxq->vport = phba->pport; 1521 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1522 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1523 if (rc == MBX_NOT_FINISHED) { 1524 spin_lock_irq(&phba->hbalock); 1525 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1526 spin_unlock_irq(&phba->hbalock); 1527 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1528 } 1529 1530 return; 1531 } 1532 1533 /** 1534 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1535 * @phba: pointer to lpfc hba data structure. 1536 * @new_fcf_record: pointer to fcf record. 1537 * @boot_flag: Indicates if this record used by boot bios. 1538 * @addr_mode: The address mode to be used by this FCF 1539 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1540 * 1541 * This routine compare the fcf record with connect list obtained from the 1542 * config region to decide if this FCF can be used for SAN discovery. It returns 1543 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1544 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1545 * is used by boot bios and addr_mode will indicate the addressing mode to be 1546 * used for this FCF when the function returns. 1547 * If the FCF record need to be used with a particular vlan id, the vlan is 1548 * set in the vlan_id on return of the function. If not VLAN tagging need to 1549 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1550 **/ 1551 static int 1552 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1553 struct fcf_record *new_fcf_record, 1554 uint32_t *boot_flag, uint32_t *addr_mode, 1555 uint16_t *vlan_id) 1556 { 1557 struct lpfc_fcf_conn_entry *conn_entry; 1558 int i, j, fcf_vlan_id = 0; 1559 1560 /* Find the lowest VLAN id in the FCF record */ 1561 for (i = 0; i < 512; i++) { 1562 if (new_fcf_record->vlan_bitmap[i]) { 1563 fcf_vlan_id = i * 8; 1564 j = 0; 1565 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1566 j++; 1567 fcf_vlan_id++; 1568 } 1569 break; 1570 } 1571 } 1572 1573 /* FCF not valid/available or solicitation in progress */ 1574 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1575 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1576 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1577 return 0; 1578 1579 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1580 *boot_flag = 0; 1581 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1582 new_fcf_record); 1583 if (phba->valid_vlan) 1584 *vlan_id = phba->vlan_id; 1585 else 1586 *vlan_id = LPFC_FCOE_NULL_VID; 1587 return 1; 1588 } 1589 1590 /* 1591 * If there are no FCF connection table entry, driver connect to all 1592 * FCFs. 1593 */ 1594 if (list_empty(&phba->fcf_conn_rec_list)) { 1595 *boot_flag = 0; 1596 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1597 new_fcf_record); 1598 1599 /* 1600 * When there are no FCF connect entries, use driver's default 1601 * addressing mode - FPMA. 1602 */ 1603 if (*addr_mode & LPFC_FCF_FPMA) 1604 *addr_mode = LPFC_FCF_FPMA; 1605 1606 /* If FCF record report a vlan id use that vlan id */ 1607 if (fcf_vlan_id) 1608 *vlan_id = fcf_vlan_id; 1609 else 1610 *vlan_id = LPFC_FCOE_NULL_VID; 1611 return 1; 1612 } 1613 1614 list_for_each_entry(conn_entry, 1615 &phba->fcf_conn_rec_list, list) { 1616 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1617 continue; 1618 1619 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1620 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1621 new_fcf_record)) 1622 continue; 1623 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1624 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1625 new_fcf_record)) 1626 continue; 1627 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1628 /* 1629 * If the vlan bit map does not have the bit set for the 1630 * vlan id to be used, then it is not a match. 1631 */ 1632 if (!(new_fcf_record->vlan_bitmap 1633 [conn_entry->conn_rec.vlan_tag / 8] & 1634 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1635 continue; 1636 } 1637 1638 /* 1639 * If connection record does not support any addressing mode, 1640 * skip the FCF record. 1641 */ 1642 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1643 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1644 continue; 1645 1646 /* 1647 * Check if the connection record specifies a required 1648 * addressing mode. 1649 */ 1650 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1651 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1652 1653 /* 1654 * If SPMA required but FCF not support this continue. 1655 */ 1656 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1657 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1658 new_fcf_record) & LPFC_FCF_SPMA)) 1659 continue; 1660 1661 /* 1662 * If FPMA required but FCF not support this continue. 1663 */ 1664 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1665 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1666 new_fcf_record) & LPFC_FCF_FPMA)) 1667 continue; 1668 } 1669 1670 /* 1671 * This fcf record matches filtering criteria. 1672 */ 1673 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1674 *boot_flag = 1; 1675 else 1676 *boot_flag = 0; 1677 1678 /* 1679 * If user did not specify any addressing mode, or if the 1680 * preferred addressing mode specified by user is not supported 1681 * by FCF, allow fabric to pick the addressing mode. 1682 */ 1683 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1684 new_fcf_record); 1685 /* 1686 * If the user specified a required address mode, assign that 1687 * address mode 1688 */ 1689 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1690 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1691 *addr_mode = (conn_entry->conn_rec.flags & 1692 FCFCNCT_AM_SPMA) ? 1693 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1694 /* 1695 * If the user specified a preferred address mode, use the 1696 * addr mode only if FCF support the addr_mode. 1697 */ 1698 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1699 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1700 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1701 (*addr_mode & LPFC_FCF_SPMA)) 1702 *addr_mode = LPFC_FCF_SPMA; 1703 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1704 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1705 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1706 (*addr_mode & LPFC_FCF_FPMA)) 1707 *addr_mode = LPFC_FCF_FPMA; 1708 1709 /* If matching connect list has a vlan id, use it */ 1710 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1711 *vlan_id = conn_entry->conn_rec.vlan_tag; 1712 /* 1713 * If no vlan id is specified in connect list, use the vlan id 1714 * in the FCF record 1715 */ 1716 else if (fcf_vlan_id) 1717 *vlan_id = fcf_vlan_id; 1718 else 1719 *vlan_id = LPFC_FCOE_NULL_VID; 1720 1721 return 1; 1722 } 1723 1724 return 0; 1725 } 1726 1727 /** 1728 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1729 * @phba: pointer to lpfc hba data structure. 1730 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1731 * 1732 * This function check if there is any fcoe event pending while driver 1733 * scan FCF entries. If there is any pending event, it will restart the 1734 * FCF saning and return 1 else return 0. 1735 */ 1736 int 1737 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1738 { 1739 /* 1740 * If the Link is up and no FCoE events while in the 1741 * FCF discovery, no need to restart FCF discovery. 1742 */ 1743 if ((phba->link_state >= LPFC_LINK_UP) && 1744 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1745 return 0; 1746 1747 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1748 "2768 Pending link or FCF event during current " 1749 "handling of the previous event: link_state:x%x, " 1750 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1751 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1752 phba->fcoe_eventtag); 1753 1754 spin_lock_irq(&phba->hbalock); 1755 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1756 spin_unlock_irq(&phba->hbalock); 1757 1758 if (phba->link_state >= LPFC_LINK_UP) { 1759 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1760 "2780 Restart FCF table scan due to " 1761 "pending FCF event:evt_tag_at_scan:x%x, " 1762 "evt_tag_current:x%x\n", 1763 phba->fcoe_eventtag_at_fcf_scan, 1764 phba->fcoe_eventtag); 1765 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1766 } else { 1767 /* 1768 * Do not continue FCF discovery and clear FCF_TS_INPROG 1769 * flag 1770 */ 1771 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1772 "2833 Stop FCF discovery process due to link " 1773 "state change (x%x)\n", phba->link_state); 1774 spin_lock_irq(&phba->hbalock); 1775 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1776 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1777 spin_unlock_irq(&phba->hbalock); 1778 } 1779 1780 /* Unregister the currently registered FCF if required */ 1781 if (unreg_fcf) { 1782 spin_lock_irq(&phba->hbalock); 1783 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1784 spin_unlock_irq(&phba->hbalock); 1785 lpfc_sli4_unregister_fcf(phba); 1786 } 1787 return 1; 1788 } 1789 1790 /** 1791 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1792 * @phba: pointer to lpfc hba data structure. 1793 * @fcf_cnt: number of eligible fcf record seen so far. 1794 * 1795 * This function makes an running random selection decision on FCF record to 1796 * use through a sequence of @fcf_cnt eligible FCF records with equal 1797 * probability. To perform integer manunipulation of random numbers with 1798 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1799 * from prandom_u32() are taken as the random random number generated. 1800 * 1801 * Returns true when outcome is for the newly read FCF record should be 1802 * chosen; otherwise, return false when outcome is for keeping the previously 1803 * chosen FCF record. 1804 **/ 1805 static bool 1806 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1807 { 1808 uint32_t rand_num; 1809 1810 /* Get 16-bit uniform random number */ 1811 rand_num = 0xFFFF & prandom_u32(); 1812 1813 /* Decision with probability 1/fcf_cnt */ 1814 if ((fcf_cnt * rand_num) < 0xFFFF) 1815 return true; 1816 else 1817 return false; 1818 } 1819 1820 /** 1821 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1822 * @phba: pointer to lpfc hba data structure. 1823 * @mboxq: pointer to mailbox object. 1824 * @next_fcf_index: pointer to holder of next fcf index. 1825 * 1826 * This routine parses the non-embedded fcf mailbox command by performing the 1827 * necessarily error checking, non-embedded read FCF record mailbox command 1828 * SGE parsing, and endianness swapping. 1829 * 1830 * Returns the pointer to the new FCF record in the non-embedded mailbox 1831 * command DMA memory if successfully, other NULL. 1832 */ 1833 static struct fcf_record * 1834 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1835 uint16_t *next_fcf_index) 1836 { 1837 void *virt_addr; 1838 struct lpfc_mbx_sge sge; 1839 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1840 uint32_t shdr_status, shdr_add_status, if_type; 1841 union lpfc_sli4_cfg_shdr *shdr; 1842 struct fcf_record *new_fcf_record; 1843 1844 /* Get the first SGE entry from the non-embedded DMA memory. This 1845 * routine only uses a single SGE. 1846 */ 1847 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1848 if (unlikely(!mboxq->sge_array)) { 1849 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1850 "2524 Failed to get the non-embedded SGE " 1851 "virtual address\n"); 1852 return NULL; 1853 } 1854 virt_addr = mboxq->sge_array->addr[0]; 1855 1856 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1857 lpfc_sli_pcimem_bcopy(shdr, shdr, 1858 sizeof(union lpfc_sli4_cfg_shdr)); 1859 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1860 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1861 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1862 if (shdr_status || shdr_add_status) { 1863 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1864 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1865 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1866 "2726 READ_FCF_RECORD Indicates empty " 1867 "FCF table.\n"); 1868 else 1869 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1870 "2521 READ_FCF_RECORD mailbox failed " 1871 "with status x%x add_status x%x, " 1872 "mbx\n", shdr_status, shdr_add_status); 1873 return NULL; 1874 } 1875 1876 /* Interpreting the returned information of the FCF record */ 1877 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1878 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1879 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1880 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1881 new_fcf_record = (struct fcf_record *)(virt_addr + 1882 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1883 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1884 offsetof(struct fcf_record, vlan_bitmap)); 1885 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1886 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1887 1888 return new_fcf_record; 1889 } 1890 1891 /** 1892 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1893 * @phba: pointer to lpfc hba data structure. 1894 * @fcf_record: pointer to the fcf record. 1895 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1896 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1897 * 1898 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1899 * enabled. 1900 **/ 1901 static void 1902 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1903 struct fcf_record *fcf_record, 1904 uint16_t vlan_id, 1905 uint16_t next_fcf_index) 1906 { 1907 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1908 "2764 READ_FCF_RECORD:\n" 1909 "\tFCF_Index : x%x\n" 1910 "\tFCF_Avail : x%x\n" 1911 "\tFCF_Valid : x%x\n" 1912 "\tFCF_SOL : x%x\n" 1913 "\tFIP_Priority : x%x\n" 1914 "\tMAC_Provider : x%x\n" 1915 "\tLowest VLANID : x%x\n" 1916 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1917 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1918 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1919 "\tNext_FCF_Index: x%x\n", 1920 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1921 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1922 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1923 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1924 fcf_record->fip_priority, 1925 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1926 vlan_id, 1927 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1928 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1929 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1930 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1931 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1932 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1933 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1934 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1935 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1936 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1937 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1938 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1939 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1940 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1941 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1942 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1943 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1944 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1945 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1946 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1947 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1948 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1949 next_fcf_index); 1950 } 1951 1952 /** 1953 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1954 * @phba: pointer to lpfc hba data structure. 1955 * @fcf_rec: pointer to an existing FCF record. 1956 * @new_fcf_record: pointer to a new FCF record. 1957 * @new_vlan_id: vlan id from the new FCF record. 1958 * 1959 * This function performs matching test of a new FCF record against an existing 1960 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1961 * will not be used as part of the FCF record matching criteria. 1962 * 1963 * Returns true if all the fields matching, otherwise returns false. 1964 */ 1965 static bool 1966 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1967 struct lpfc_fcf_rec *fcf_rec, 1968 struct fcf_record *new_fcf_record, 1969 uint16_t new_vlan_id) 1970 { 1971 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1972 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1973 return false; 1974 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1975 return false; 1976 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1977 return false; 1978 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1979 return false; 1980 if (fcf_rec->priority != new_fcf_record->fip_priority) 1981 return false; 1982 return true; 1983 } 1984 1985 /** 1986 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1987 * @vport: Pointer to vport object. 1988 * @fcf_index: index to next fcf. 1989 * 1990 * This function processing the roundrobin fcf failover to next fcf index. 1991 * When this function is invoked, there will be a current fcf registered 1992 * for flogi. 1993 * Return: 0 for continue retrying flogi on currently registered fcf; 1994 * 1 for stop flogi on currently registered fcf; 1995 */ 1996 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1997 { 1998 struct lpfc_hba *phba = vport->phba; 1999 int rc; 2000 2001 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2002 spin_lock_irq(&phba->hbalock); 2003 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2004 spin_unlock_irq(&phba->hbalock); 2005 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2006 "2872 Devloss tmo with no eligible " 2007 "FCF, unregister in-use FCF (x%x) " 2008 "and rescan FCF table\n", 2009 phba->fcf.current_rec.fcf_indx); 2010 lpfc_unregister_fcf_rescan(phba); 2011 goto stop_flogi_current_fcf; 2012 } 2013 /* Mark the end to FLOGI roundrobin failover */ 2014 phba->hba_flag &= ~FCF_RR_INPROG; 2015 /* Allow action to new fcf asynchronous event */ 2016 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2017 spin_unlock_irq(&phba->hbalock); 2018 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2019 "2865 No FCF available, stop roundrobin FCF " 2020 "failover and change port state:x%x/x%x\n", 2021 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2022 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2023 2024 if (!phba->fcf.fcf_redisc_attempted) { 2025 lpfc_unregister_fcf(phba); 2026 2027 rc = lpfc_sli4_redisc_fcf_table(phba); 2028 if (!rc) { 2029 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2030 "3195 Rediscover FCF table\n"); 2031 phba->fcf.fcf_redisc_attempted = 1; 2032 lpfc_sli4_clear_fcf_rr_bmask(phba); 2033 } else { 2034 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2035 "3196 Rediscover FCF table " 2036 "failed. Status:x%x\n", rc); 2037 } 2038 } else { 2039 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2040 "3197 Already rediscover FCF table " 2041 "attempted. No more retry\n"); 2042 } 2043 goto stop_flogi_current_fcf; 2044 } else { 2045 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2046 "2794 Try FLOGI roundrobin FCF failover to " 2047 "(x%x)\n", fcf_index); 2048 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2049 if (rc) 2050 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2051 "2761 FLOGI roundrobin FCF failover " 2052 "failed (rc:x%x) to read FCF (x%x)\n", 2053 rc, phba->fcf.current_rec.fcf_indx); 2054 else 2055 goto stop_flogi_current_fcf; 2056 } 2057 return 0; 2058 2059 stop_flogi_current_fcf: 2060 lpfc_can_disctmo(vport); 2061 return 1; 2062 } 2063 2064 /** 2065 * lpfc_sli4_fcf_pri_list_del 2066 * @phba: pointer to lpfc hba data structure. 2067 * @fcf_index the index of the fcf record to delete 2068 * This routine checks the on list flag of the fcf_index to be deleted. 2069 * If it is one the list then it is removed from the list, and the flag 2070 * is cleared. This routine grab the hbalock before removing the fcf 2071 * record from the list. 2072 **/ 2073 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2074 uint16_t fcf_index) 2075 { 2076 struct lpfc_fcf_pri *new_fcf_pri; 2077 2078 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2079 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2080 "3058 deleting idx x%x pri x%x flg x%x\n", 2081 fcf_index, new_fcf_pri->fcf_rec.priority, 2082 new_fcf_pri->fcf_rec.flag); 2083 spin_lock_irq(&phba->hbalock); 2084 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2085 if (phba->fcf.current_rec.priority == 2086 new_fcf_pri->fcf_rec.priority) 2087 phba->fcf.eligible_fcf_cnt--; 2088 list_del_init(&new_fcf_pri->list); 2089 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2090 } 2091 spin_unlock_irq(&phba->hbalock); 2092 } 2093 2094 /** 2095 * lpfc_sli4_set_fcf_flogi_fail 2096 * @phba: pointer to lpfc hba data structure. 2097 * @fcf_index the index of the fcf record to update 2098 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2099 * flag so the the round robin slection for the particular priority level 2100 * will try a different fcf record that does not have this bit set. 2101 * If the fcf record is re-read for any reason this flag is cleared brfore 2102 * adding it to the priority list. 2103 **/ 2104 void 2105 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2106 { 2107 struct lpfc_fcf_pri *new_fcf_pri; 2108 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2109 spin_lock_irq(&phba->hbalock); 2110 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2111 spin_unlock_irq(&phba->hbalock); 2112 } 2113 2114 /** 2115 * lpfc_sli4_fcf_pri_list_add 2116 * @phba: pointer to lpfc hba data structure. 2117 * @fcf_index the index of the fcf record to add 2118 * This routine checks the priority of the fcf_index to be added. 2119 * If it is a lower priority than the current head of the fcf_pri list 2120 * then it is added to the list in the right order. 2121 * If it is the same priority as the current head of the list then it 2122 * is added to the head of the list and its bit in the rr_bmask is set. 2123 * If the fcf_index to be added is of a higher priority than the current 2124 * head of the list then the rr_bmask is cleared, its bit is set in the 2125 * rr_bmask and it is added to the head of the list. 2126 * returns: 2127 * 0=success 1=failure 2128 **/ 2129 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2130 uint16_t fcf_index, 2131 struct fcf_record *new_fcf_record) 2132 { 2133 uint16_t current_fcf_pri; 2134 uint16_t last_index; 2135 struct lpfc_fcf_pri *fcf_pri; 2136 struct lpfc_fcf_pri *next_fcf_pri; 2137 struct lpfc_fcf_pri *new_fcf_pri; 2138 int ret; 2139 2140 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2141 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2142 "3059 adding idx x%x pri x%x flg x%x\n", 2143 fcf_index, new_fcf_record->fip_priority, 2144 new_fcf_pri->fcf_rec.flag); 2145 spin_lock_irq(&phba->hbalock); 2146 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2147 list_del_init(&new_fcf_pri->list); 2148 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2149 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2150 if (list_empty(&phba->fcf.fcf_pri_list)) { 2151 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2152 ret = lpfc_sli4_fcf_rr_index_set(phba, 2153 new_fcf_pri->fcf_rec.fcf_index); 2154 goto out; 2155 } 2156 2157 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2158 LPFC_SLI4_FCF_TBL_INDX_MAX); 2159 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2160 ret = 0; /* Empty rr list */ 2161 goto out; 2162 } 2163 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2164 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2165 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2166 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2167 memset(phba->fcf.fcf_rr_bmask, 0, 2168 sizeof(*phba->fcf.fcf_rr_bmask)); 2169 /* fcfs_at_this_priority_level = 1; */ 2170 phba->fcf.eligible_fcf_cnt = 1; 2171 } else 2172 /* fcfs_at_this_priority_level++; */ 2173 phba->fcf.eligible_fcf_cnt++; 2174 ret = lpfc_sli4_fcf_rr_index_set(phba, 2175 new_fcf_pri->fcf_rec.fcf_index); 2176 goto out; 2177 } 2178 2179 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2180 &phba->fcf.fcf_pri_list, list) { 2181 if (new_fcf_pri->fcf_rec.priority <= 2182 fcf_pri->fcf_rec.priority) { 2183 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2184 list_add(&new_fcf_pri->list, 2185 &phba->fcf.fcf_pri_list); 2186 else 2187 list_add(&new_fcf_pri->list, 2188 &((struct lpfc_fcf_pri *) 2189 fcf_pri->list.prev)->list); 2190 ret = 0; 2191 goto out; 2192 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2193 || new_fcf_pri->fcf_rec.priority < 2194 next_fcf_pri->fcf_rec.priority) { 2195 list_add(&new_fcf_pri->list, &fcf_pri->list); 2196 ret = 0; 2197 goto out; 2198 } 2199 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2200 continue; 2201 2202 } 2203 ret = 1; 2204 out: 2205 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2206 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2207 spin_unlock_irq(&phba->hbalock); 2208 return ret; 2209 } 2210 2211 /** 2212 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2213 * @phba: pointer to lpfc hba data structure. 2214 * @mboxq: pointer to mailbox object. 2215 * 2216 * This function iterates through all the fcf records available in 2217 * HBA and chooses the optimal FCF record for discovery. After finding 2218 * the FCF for discovery it registers the FCF record and kicks start 2219 * discovery. 2220 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2221 * use an FCF record which matches fabric name and mac address of the 2222 * currently used FCF record. 2223 * If the driver supports only one FCF, it will try to use the FCF record 2224 * used by BOOT_BIOS. 2225 */ 2226 void 2227 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2228 { 2229 struct fcf_record *new_fcf_record; 2230 uint32_t boot_flag, addr_mode; 2231 uint16_t fcf_index, next_fcf_index; 2232 struct lpfc_fcf_rec *fcf_rec = NULL; 2233 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2234 bool select_new_fcf; 2235 int rc; 2236 2237 /* If there is pending FCoE event restart FCF table scan */ 2238 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2239 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2240 return; 2241 } 2242 2243 /* Parse the FCF record from the non-embedded mailbox command */ 2244 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2245 &next_fcf_index); 2246 if (!new_fcf_record) { 2247 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2248 "2765 Mailbox command READ_FCF_RECORD " 2249 "failed to retrieve a FCF record.\n"); 2250 /* Let next new FCF event trigger fast failover */ 2251 spin_lock_irq(&phba->hbalock); 2252 phba->hba_flag &= ~FCF_TS_INPROG; 2253 spin_unlock_irq(&phba->hbalock); 2254 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2255 return; 2256 } 2257 2258 /* Check the FCF record against the connection list */ 2259 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2260 &addr_mode, &vlan_id); 2261 2262 /* Log the FCF record information if turned on */ 2263 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2264 next_fcf_index); 2265 2266 /* 2267 * If the fcf record does not match with connect list entries 2268 * read the next entry; otherwise, this is an eligible FCF 2269 * record for roundrobin FCF failover. 2270 */ 2271 if (!rc) { 2272 lpfc_sli4_fcf_pri_list_del(phba, 2273 bf_get(lpfc_fcf_record_fcf_index, 2274 new_fcf_record)); 2275 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2276 "2781 FCF (x%x) failed connection " 2277 "list check: (x%x/x%x/%x)\n", 2278 bf_get(lpfc_fcf_record_fcf_index, 2279 new_fcf_record), 2280 bf_get(lpfc_fcf_record_fcf_avail, 2281 new_fcf_record), 2282 bf_get(lpfc_fcf_record_fcf_valid, 2283 new_fcf_record), 2284 bf_get(lpfc_fcf_record_fcf_sol, 2285 new_fcf_record)); 2286 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2287 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2288 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2289 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2290 phba->fcf.current_rec.fcf_indx) { 2291 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2292 "2862 FCF (x%x) matches property " 2293 "of in-use FCF (x%x)\n", 2294 bf_get(lpfc_fcf_record_fcf_index, 2295 new_fcf_record), 2296 phba->fcf.current_rec.fcf_indx); 2297 goto read_next_fcf; 2298 } 2299 /* 2300 * In case the current in-use FCF record becomes 2301 * invalid/unavailable during FCF discovery that 2302 * was not triggered by fast FCF failover process, 2303 * treat it as fast FCF failover. 2304 */ 2305 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2306 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2307 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2308 "2835 Invalid in-use FCF " 2309 "(x%x), enter FCF failover " 2310 "table scan.\n", 2311 phba->fcf.current_rec.fcf_indx); 2312 spin_lock_irq(&phba->hbalock); 2313 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2314 spin_unlock_irq(&phba->hbalock); 2315 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2316 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2317 LPFC_FCOE_FCF_GET_FIRST); 2318 return; 2319 } 2320 } 2321 goto read_next_fcf; 2322 } else { 2323 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2324 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2325 new_fcf_record); 2326 if (rc) 2327 goto read_next_fcf; 2328 } 2329 2330 /* 2331 * If this is not the first FCF discovery of the HBA, use last 2332 * FCF record for the discovery. The condition that a rescan 2333 * matches the in-use FCF record: fabric name, switch name, mac 2334 * address, and vlan_id. 2335 */ 2336 spin_lock_irq(&phba->hbalock); 2337 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2338 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2339 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2340 new_fcf_record, vlan_id)) { 2341 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2342 phba->fcf.current_rec.fcf_indx) { 2343 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2344 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2345 /* Stop FCF redisc wait timer */ 2346 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2347 phba); 2348 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2349 /* Fast failover, mark completed */ 2350 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2351 spin_unlock_irq(&phba->hbalock); 2352 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2353 "2836 New FCF matches in-use " 2354 "FCF (x%x), port_state:x%x, " 2355 "fc_flag:x%x\n", 2356 phba->fcf.current_rec.fcf_indx, 2357 phba->pport->port_state, 2358 phba->pport->fc_flag); 2359 goto out; 2360 } else 2361 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2362 "2863 New FCF (x%x) matches " 2363 "property of in-use FCF (x%x)\n", 2364 bf_get(lpfc_fcf_record_fcf_index, 2365 new_fcf_record), 2366 phba->fcf.current_rec.fcf_indx); 2367 } 2368 /* 2369 * Read next FCF record from HBA searching for the matching 2370 * with in-use record only if not during the fast failover 2371 * period. In case of fast failover period, it shall try to 2372 * determine whether the FCF record just read should be the 2373 * next candidate. 2374 */ 2375 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2376 spin_unlock_irq(&phba->hbalock); 2377 goto read_next_fcf; 2378 } 2379 } 2380 /* 2381 * Update on failover FCF record only if it's in FCF fast-failover 2382 * period; otherwise, update on current FCF record. 2383 */ 2384 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2385 fcf_rec = &phba->fcf.failover_rec; 2386 else 2387 fcf_rec = &phba->fcf.current_rec; 2388 2389 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2390 /* 2391 * If the driver FCF record does not have boot flag 2392 * set and new hba fcf record has boot flag set, use 2393 * the new hba fcf record. 2394 */ 2395 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2396 /* Choose this FCF record */ 2397 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2398 "2837 Update current FCF record " 2399 "(x%x) with new FCF record (x%x)\n", 2400 fcf_rec->fcf_indx, 2401 bf_get(lpfc_fcf_record_fcf_index, 2402 new_fcf_record)); 2403 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2404 addr_mode, vlan_id, BOOT_ENABLE); 2405 spin_unlock_irq(&phba->hbalock); 2406 goto read_next_fcf; 2407 } 2408 /* 2409 * If the driver FCF record has boot flag set and the 2410 * new hba FCF record does not have boot flag, read 2411 * the next FCF record. 2412 */ 2413 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2414 spin_unlock_irq(&phba->hbalock); 2415 goto read_next_fcf; 2416 } 2417 /* 2418 * If the new hba FCF record has lower priority value 2419 * than the driver FCF record, use the new record. 2420 */ 2421 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2422 /* Choose the new FCF record with lower priority */ 2423 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2424 "2838 Update current FCF record " 2425 "(x%x) with new FCF record (x%x)\n", 2426 fcf_rec->fcf_indx, 2427 bf_get(lpfc_fcf_record_fcf_index, 2428 new_fcf_record)); 2429 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2430 addr_mode, vlan_id, 0); 2431 /* Reset running random FCF selection count */ 2432 phba->fcf.eligible_fcf_cnt = 1; 2433 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2434 /* Update running random FCF selection count */ 2435 phba->fcf.eligible_fcf_cnt++; 2436 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2437 phba->fcf.eligible_fcf_cnt); 2438 if (select_new_fcf) { 2439 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2440 "2839 Update current FCF record " 2441 "(x%x) with new FCF record (x%x)\n", 2442 fcf_rec->fcf_indx, 2443 bf_get(lpfc_fcf_record_fcf_index, 2444 new_fcf_record)); 2445 /* Choose the new FCF by random selection */ 2446 __lpfc_update_fcf_record(phba, fcf_rec, 2447 new_fcf_record, 2448 addr_mode, vlan_id, 0); 2449 } 2450 } 2451 spin_unlock_irq(&phba->hbalock); 2452 goto read_next_fcf; 2453 } 2454 /* 2455 * This is the first suitable FCF record, choose this record for 2456 * initial best-fit FCF. 2457 */ 2458 if (fcf_rec) { 2459 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2460 "2840 Update initial FCF candidate " 2461 "with FCF (x%x)\n", 2462 bf_get(lpfc_fcf_record_fcf_index, 2463 new_fcf_record)); 2464 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2465 addr_mode, vlan_id, (boot_flag ? 2466 BOOT_ENABLE : 0)); 2467 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2468 /* Setup initial running random FCF selection count */ 2469 phba->fcf.eligible_fcf_cnt = 1; 2470 } 2471 spin_unlock_irq(&phba->hbalock); 2472 goto read_next_fcf; 2473 2474 read_next_fcf: 2475 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2476 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2477 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2478 /* 2479 * Case of FCF fast failover scan 2480 */ 2481 2482 /* 2483 * It has not found any suitable FCF record, cancel 2484 * FCF scan inprogress, and do nothing 2485 */ 2486 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2487 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2488 "2782 No suitable FCF found: " 2489 "(x%x/x%x)\n", 2490 phba->fcoe_eventtag_at_fcf_scan, 2491 bf_get(lpfc_fcf_record_fcf_index, 2492 new_fcf_record)); 2493 spin_lock_irq(&phba->hbalock); 2494 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2495 phba->hba_flag &= ~FCF_TS_INPROG; 2496 spin_unlock_irq(&phba->hbalock); 2497 /* Unregister in-use FCF and rescan */ 2498 lpfc_printf_log(phba, KERN_INFO, 2499 LOG_FIP, 2500 "2864 On devloss tmo " 2501 "unreg in-use FCF and " 2502 "rescan FCF table\n"); 2503 lpfc_unregister_fcf_rescan(phba); 2504 return; 2505 } 2506 /* 2507 * Let next new FCF event trigger fast failover 2508 */ 2509 phba->hba_flag &= ~FCF_TS_INPROG; 2510 spin_unlock_irq(&phba->hbalock); 2511 return; 2512 } 2513 /* 2514 * It has found a suitable FCF record that is not 2515 * the same as in-use FCF record, unregister the 2516 * in-use FCF record, replace the in-use FCF record 2517 * with the new FCF record, mark FCF fast failover 2518 * completed, and then start register the new FCF 2519 * record. 2520 */ 2521 2522 /* Unregister the current in-use FCF record */ 2523 lpfc_unregister_fcf(phba); 2524 2525 /* Replace in-use record with the new record */ 2526 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2527 "2842 Replace in-use FCF (x%x) " 2528 "with failover FCF (x%x)\n", 2529 phba->fcf.current_rec.fcf_indx, 2530 phba->fcf.failover_rec.fcf_indx); 2531 memcpy(&phba->fcf.current_rec, 2532 &phba->fcf.failover_rec, 2533 sizeof(struct lpfc_fcf_rec)); 2534 /* 2535 * Mark the fast FCF failover rediscovery completed 2536 * and the start of the first round of the roundrobin 2537 * FCF failover. 2538 */ 2539 spin_lock_irq(&phba->hbalock); 2540 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2541 spin_unlock_irq(&phba->hbalock); 2542 /* Register to the new FCF record */ 2543 lpfc_register_fcf(phba); 2544 } else { 2545 /* 2546 * In case of transaction period to fast FCF failover, 2547 * do nothing when search to the end of the FCF table. 2548 */ 2549 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2550 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2551 return; 2552 2553 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2554 phba->fcf.fcf_flag & FCF_IN_USE) { 2555 /* 2556 * In case the current in-use FCF record no 2557 * longer existed during FCF discovery that 2558 * was not triggered by fast FCF failover 2559 * process, treat it as fast FCF failover. 2560 */ 2561 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2562 "2841 In-use FCF record (x%x) " 2563 "not reported, entering fast " 2564 "FCF failover mode scanning.\n", 2565 phba->fcf.current_rec.fcf_indx); 2566 spin_lock_irq(&phba->hbalock); 2567 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2568 spin_unlock_irq(&phba->hbalock); 2569 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2570 LPFC_FCOE_FCF_GET_FIRST); 2571 return; 2572 } 2573 /* Register to the new FCF record */ 2574 lpfc_register_fcf(phba); 2575 } 2576 } else 2577 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2578 return; 2579 2580 out: 2581 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2582 lpfc_register_fcf(phba); 2583 2584 return; 2585 } 2586 2587 /** 2588 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2589 * @phba: pointer to lpfc hba data structure. 2590 * @mboxq: pointer to mailbox object. 2591 * 2592 * This is the callback function for FLOGI failure roundrobin FCF failover 2593 * read FCF record mailbox command from the eligible FCF record bmask for 2594 * performing the failover. If the FCF read back is not valid/available, it 2595 * fails through to retrying FLOGI to the currently registered FCF again. 2596 * Otherwise, if the FCF read back is valid and available, it will set the 2597 * newly read FCF record to the failover FCF record, unregister currently 2598 * registered FCF record, copy the failover FCF record to the current 2599 * FCF record, and then register the current FCF record before proceeding 2600 * to trying FLOGI on the new failover FCF. 2601 */ 2602 void 2603 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2604 { 2605 struct fcf_record *new_fcf_record; 2606 uint32_t boot_flag, addr_mode; 2607 uint16_t next_fcf_index, fcf_index; 2608 uint16_t current_fcf_index; 2609 uint16_t vlan_id; 2610 int rc; 2611 2612 /* If link state is not up, stop the roundrobin failover process */ 2613 if (phba->link_state < LPFC_LINK_UP) { 2614 spin_lock_irq(&phba->hbalock); 2615 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2616 phba->hba_flag &= ~FCF_RR_INPROG; 2617 spin_unlock_irq(&phba->hbalock); 2618 goto out; 2619 } 2620 2621 /* Parse the FCF record from the non-embedded mailbox command */ 2622 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2623 &next_fcf_index); 2624 if (!new_fcf_record) { 2625 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2626 "2766 Mailbox command READ_FCF_RECORD " 2627 "failed to retrieve a FCF record. " 2628 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2629 phba->fcf.fcf_flag); 2630 lpfc_unregister_fcf_rescan(phba); 2631 goto out; 2632 } 2633 2634 /* Get the needed parameters from FCF record */ 2635 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2636 &addr_mode, &vlan_id); 2637 2638 /* Log the FCF record information if turned on */ 2639 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2640 next_fcf_index); 2641 2642 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2643 if (!rc) { 2644 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2645 "2848 Remove ineligible FCF (x%x) from " 2646 "from roundrobin bmask\n", fcf_index); 2647 /* Clear roundrobin bmask bit for ineligible FCF */ 2648 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2649 /* Perform next round of roundrobin FCF failover */ 2650 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2651 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2652 if (rc) 2653 goto out; 2654 goto error_out; 2655 } 2656 2657 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2658 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2659 "2760 Perform FLOGI roundrobin FCF failover: " 2660 "FCF (x%x) back to FCF (x%x)\n", 2661 phba->fcf.current_rec.fcf_indx, fcf_index); 2662 /* Wait 500 ms before retrying FLOGI to current FCF */ 2663 msleep(500); 2664 lpfc_issue_init_vfi(phba->pport); 2665 goto out; 2666 } 2667 2668 /* Upload new FCF record to the failover FCF record */ 2669 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2670 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2671 phba->fcf.failover_rec.fcf_indx, fcf_index); 2672 spin_lock_irq(&phba->hbalock); 2673 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2674 new_fcf_record, addr_mode, vlan_id, 2675 (boot_flag ? BOOT_ENABLE : 0)); 2676 spin_unlock_irq(&phba->hbalock); 2677 2678 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2679 2680 /* Unregister the current in-use FCF record */ 2681 lpfc_unregister_fcf(phba); 2682 2683 /* Replace in-use record with the new record */ 2684 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2685 sizeof(struct lpfc_fcf_rec)); 2686 2687 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2688 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2689 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2690 2691 error_out: 2692 lpfc_register_fcf(phba); 2693 out: 2694 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2695 } 2696 2697 /** 2698 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2699 * @phba: pointer to lpfc hba data structure. 2700 * @mboxq: pointer to mailbox object. 2701 * 2702 * This is the callback function of read FCF record mailbox command for 2703 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2704 * failover when a new FCF event happened. If the FCF read back is 2705 * valid/available and it passes the connection list check, it updates 2706 * the bmask for the eligible FCF record for roundrobin failover. 2707 */ 2708 void 2709 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2710 { 2711 struct fcf_record *new_fcf_record; 2712 uint32_t boot_flag, addr_mode; 2713 uint16_t fcf_index, next_fcf_index; 2714 uint16_t vlan_id; 2715 int rc; 2716 2717 /* If link state is not up, no need to proceed */ 2718 if (phba->link_state < LPFC_LINK_UP) 2719 goto out; 2720 2721 /* If FCF discovery period is over, no need to proceed */ 2722 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2723 goto out; 2724 2725 /* Parse the FCF record from the non-embedded mailbox command */ 2726 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2727 &next_fcf_index); 2728 if (!new_fcf_record) { 2729 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2730 "2767 Mailbox command READ_FCF_RECORD " 2731 "failed to retrieve a FCF record.\n"); 2732 goto out; 2733 } 2734 2735 /* Check the connection list for eligibility */ 2736 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2737 &addr_mode, &vlan_id); 2738 2739 /* Log the FCF record information if turned on */ 2740 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2741 next_fcf_index); 2742 2743 if (!rc) 2744 goto out; 2745 2746 /* Update the eligible FCF record index bmask */ 2747 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2748 2749 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2750 2751 out: 2752 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2753 } 2754 2755 /** 2756 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2757 * @phba: pointer to lpfc hba data structure. 2758 * @mboxq: pointer to mailbox data structure. 2759 * 2760 * This function handles completion of init vfi mailbox command. 2761 */ 2762 static void 2763 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2764 { 2765 struct lpfc_vport *vport = mboxq->vport; 2766 2767 /* 2768 * VFI not supported on interface type 0, just do the flogi 2769 * Also continue if the VFI is in use - just use the same one. 2770 */ 2771 if (mboxq->u.mb.mbxStatus && 2772 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2773 LPFC_SLI_INTF_IF_TYPE_0) && 2774 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2775 lpfc_printf_vlog(vport, KERN_ERR, 2776 LOG_MBOX, 2777 "2891 Init VFI mailbox failed 0x%x\n", 2778 mboxq->u.mb.mbxStatus); 2779 mempool_free(mboxq, phba->mbox_mem_pool); 2780 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2781 return; 2782 } 2783 2784 lpfc_initial_flogi(vport); 2785 mempool_free(mboxq, phba->mbox_mem_pool); 2786 return; 2787 } 2788 2789 /** 2790 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2791 * @vport: pointer to lpfc_vport data structure. 2792 * 2793 * This function issue a init_vfi mailbox command to initialize the VFI and 2794 * VPI for the physical port. 2795 */ 2796 void 2797 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2798 { 2799 LPFC_MBOXQ_t *mboxq; 2800 int rc; 2801 struct lpfc_hba *phba = vport->phba; 2802 2803 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2804 if (!mboxq) { 2805 lpfc_printf_vlog(vport, KERN_ERR, 2806 LOG_MBOX, "2892 Failed to allocate " 2807 "init_vfi mailbox\n"); 2808 return; 2809 } 2810 lpfc_init_vfi(mboxq, vport); 2811 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2812 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2813 if (rc == MBX_NOT_FINISHED) { 2814 lpfc_printf_vlog(vport, KERN_ERR, 2815 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2816 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2817 } 2818 } 2819 2820 /** 2821 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2822 * @phba: pointer to lpfc hba data structure. 2823 * @mboxq: pointer to mailbox data structure. 2824 * 2825 * This function handles completion of init vpi mailbox command. 2826 */ 2827 void 2828 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2829 { 2830 struct lpfc_vport *vport = mboxq->vport; 2831 struct lpfc_nodelist *ndlp; 2832 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2833 2834 if (mboxq->u.mb.mbxStatus) { 2835 lpfc_printf_vlog(vport, KERN_ERR, 2836 LOG_MBOX, 2837 "2609 Init VPI mailbox failed 0x%x\n", 2838 mboxq->u.mb.mbxStatus); 2839 mempool_free(mboxq, phba->mbox_mem_pool); 2840 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2841 return; 2842 } 2843 spin_lock_irq(shost->host_lock); 2844 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2845 spin_unlock_irq(shost->host_lock); 2846 2847 /* If this port is physical port or FDISC is done, do reg_vpi */ 2848 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2849 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2850 if (!ndlp) 2851 lpfc_printf_vlog(vport, KERN_ERR, 2852 LOG_DISCOVERY, 2853 "2731 Cannot find fabric " 2854 "controller node\n"); 2855 else 2856 lpfc_register_new_vport(phba, vport, ndlp); 2857 mempool_free(mboxq, phba->mbox_mem_pool); 2858 return; 2859 } 2860 2861 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2862 lpfc_initial_fdisc(vport); 2863 else { 2864 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2865 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2866 "2606 No NPIV Fabric support\n"); 2867 } 2868 mempool_free(mboxq, phba->mbox_mem_pool); 2869 return; 2870 } 2871 2872 /** 2873 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2874 * @vport: pointer to lpfc_vport data structure. 2875 * 2876 * This function issue a init_vpi mailbox command to initialize 2877 * VPI for the vport. 2878 */ 2879 void 2880 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2881 { 2882 LPFC_MBOXQ_t *mboxq; 2883 int rc, vpi; 2884 2885 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2886 vpi = lpfc_alloc_vpi(vport->phba); 2887 if (!vpi) { 2888 lpfc_printf_vlog(vport, KERN_ERR, 2889 LOG_MBOX, 2890 "3303 Failed to obtain vport vpi\n"); 2891 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2892 return; 2893 } 2894 vport->vpi = vpi; 2895 } 2896 2897 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2898 if (!mboxq) { 2899 lpfc_printf_vlog(vport, KERN_ERR, 2900 LOG_MBOX, "2607 Failed to allocate " 2901 "init_vpi mailbox\n"); 2902 return; 2903 } 2904 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2905 mboxq->vport = vport; 2906 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2907 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2908 if (rc == MBX_NOT_FINISHED) { 2909 lpfc_printf_vlog(vport, KERN_ERR, 2910 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2911 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2912 } 2913 } 2914 2915 /** 2916 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2917 * @phba: pointer to lpfc hba data structure. 2918 * 2919 * This function loops through the list of vports on the @phba and issues an 2920 * FDISC if possible. 2921 */ 2922 void 2923 lpfc_start_fdiscs(struct lpfc_hba *phba) 2924 { 2925 struct lpfc_vport **vports; 2926 int i; 2927 2928 vports = lpfc_create_vport_work_array(phba); 2929 if (vports != NULL) { 2930 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2931 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2932 continue; 2933 /* There are no vpi for this vport */ 2934 if (vports[i]->vpi > phba->max_vpi) { 2935 lpfc_vport_set_state(vports[i], 2936 FC_VPORT_FAILED); 2937 continue; 2938 } 2939 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2940 lpfc_vport_set_state(vports[i], 2941 FC_VPORT_LINKDOWN); 2942 continue; 2943 } 2944 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2945 lpfc_issue_init_vpi(vports[i]); 2946 continue; 2947 } 2948 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2949 lpfc_initial_fdisc(vports[i]); 2950 else { 2951 lpfc_vport_set_state(vports[i], 2952 FC_VPORT_NO_FABRIC_SUPP); 2953 lpfc_printf_vlog(vports[i], KERN_ERR, 2954 LOG_ELS, 2955 "0259 No NPIV " 2956 "Fabric support\n"); 2957 } 2958 } 2959 } 2960 lpfc_destroy_vport_work_array(phba, vports); 2961 } 2962 2963 void 2964 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2965 { 2966 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 2967 struct lpfc_vport *vport = mboxq->vport; 2968 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2969 2970 /* 2971 * VFI not supported for interface type 0, so ignore any mailbox 2972 * error (except VFI in use) and continue with the discovery. 2973 */ 2974 if (mboxq->u.mb.mbxStatus && 2975 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2976 LPFC_SLI_INTF_IF_TYPE_0) && 2977 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2978 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2979 "2018 REG_VFI mbxStatus error x%x " 2980 "HBA state x%x\n", 2981 mboxq->u.mb.mbxStatus, vport->port_state); 2982 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2983 /* FLOGI failed, use loop map to make discovery list */ 2984 lpfc_disc_list_loopmap(vport); 2985 /* Start discovery */ 2986 lpfc_disc_start(vport); 2987 goto out_free_mem; 2988 } 2989 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2990 goto out_free_mem; 2991 } 2992 2993 /* If the VFI is already registered, there is nothing else to do 2994 * Unless this was a VFI update and we are in PT2PT mode, then 2995 * we should drop through to set the port state to ready. 2996 */ 2997 if (vport->fc_flag & FC_VFI_REGISTERED) 2998 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2999 vport->fc_flag & FC_PT2PT)) 3000 goto out_free_mem; 3001 3002 /* The VPI is implicitly registered when the VFI is registered */ 3003 spin_lock_irq(shost->host_lock); 3004 vport->vpi_state |= LPFC_VPI_REGISTERED; 3005 vport->fc_flag |= FC_VFI_REGISTERED; 3006 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3007 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3008 spin_unlock_irq(shost->host_lock); 3009 3010 /* In case SLI4 FC loopback test, we are ready */ 3011 if ((phba->sli_rev == LPFC_SLI_REV4) && 3012 (phba->link_flag & LS_LOOPBACK_MODE)) { 3013 phba->link_state = LPFC_HBA_READY; 3014 goto out_free_mem; 3015 } 3016 3017 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3018 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3019 "alpacnt:%d LinkState:%x topology:%x\n", 3020 vport->port_state, vport->fc_flag, vport->fc_myDID, 3021 vport->phba->alpa_map[0], 3022 phba->link_state, phba->fc_topology); 3023 3024 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3025 /* 3026 * For private loop or for NPort pt2pt, 3027 * just start discovery and we are done. 3028 */ 3029 if ((vport->fc_flag & FC_PT2PT) || 3030 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3031 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3032 3033 /* Use loop map to make discovery list */ 3034 lpfc_disc_list_loopmap(vport); 3035 /* Start discovery */ 3036 if (vport->fc_flag & FC_PT2PT) 3037 vport->port_state = LPFC_VPORT_READY; 3038 else 3039 lpfc_disc_start(vport); 3040 } else { 3041 lpfc_start_fdiscs(phba); 3042 lpfc_do_scr_ns_plogi(phba, vport); 3043 } 3044 } 3045 3046 out_free_mem: 3047 mempool_free(mboxq, phba->mbox_mem_pool); 3048 if (dmabuf) { 3049 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3050 kfree(dmabuf); 3051 } 3052 return; 3053 } 3054 3055 static void 3056 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3057 { 3058 MAILBOX_t *mb = &pmb->u.mb; 3059 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3060 struct lpfc_vport *vport = pmb->vport; 3061 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3062 struct serv_parm *sp = &vport->fc_sparam; 3063 uint32_t ed_tov; 3064 3065 /* Check for error */ 3066 if (mb->mbxStatus) { 3067 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3068 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3069 "0319 READ_SPARAM mbxStatus error x%x " 3070 "hba state x%x>\n", 3071 mb->mbxStatus, vport->port_state); 3072 lpfc_linkdown(phba); 3073 goto out; 3074 } 3075 3076 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3077 sizeof (struct serv_parm)); 3078 3079 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3080 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3081 ed_tov = (ed_tov + 999999) / 1000000; 3082 3083 phba->fc_edtov = ed_tov; 3084 phba->fc_ratov = (2 * ed_tov) / 1000; 3085 if (phba->fc_ratov < FF_DEF_RATOV) { 3086 /* RA_TOV should be atleast 10sec for initial flogi */ 3087 phba->fc_ratov = FF_DEF_RATOV; 3088 } 3089 3090 lpfc_update_vport_wwn(vport); 3091 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3092 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3093 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3094 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3095 } 3096 3097 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3098 kfree(mp); 3099 mempool_free(pmb, phba->mbox_mem_pool); 3100 3101 /* Check if sending the FLOGI is being deferred to after we get 3102 * up to date CSPs from MBX_READ_SPARAM. 3103 */ 3104 if (phba->hba_flag & HBA_DEFER_FLOGI) { 3105 lpfc_initial_flogi(vport); 3106 phba->hba_flag &= ~HBA_DEFER_FLOGI; 3107 } 3108 return; 3109 3110 out: 3111 pmb->ctx_buf = NULL; 3112 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3113 kfree(mp); 3114 lpfc_issue_clear_la(phba, vport); 3115 mempool_free(pmb, phba->mbox_mem_pool); 3116 return; 3117 } 3118 3119 static void 3120 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3121 { 3122 struct lpfc_vport *vport = phba->pport; 3123 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3124 struct Scsi_Host *shost; 3125 int i; 3126 struct lpfc_dmabuf *mp; 3127 int rc; 3128 struct fcf_record *fcf_record; 3129 uint32_t fc_flags = 0; 3130 unsigned long iflags; 3131 3132 spin_lock_irqsave(&phba->hbalock, iflags); 3133 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3134 3135 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3136 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3137 case LPFC_LINK_SPEED_1GHZ: 3138 case LPFC_LINK_SPEED_2GHZ: 3139 case LPFC_LINK_SPEED_4GHZ: 3140 case LPFC_LINK_SPEED_8GHZ: 3141 case LPFC_LINK_SPEED_10GHZ: 3142 case LPFC_LINK_SPEED_16GHZ: 3143 case LPFC_LINK_SPEED_32GHZ: 3144 case LPFC_LINK_SPEED_64GHZ: 3145 case LPFC_LINK_SPEED_128GHZ: 3146 break; 3147 default: 3148 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3149 break; 3150 } 3151 } 3152 3153 if (phba->fc_topology && 3154 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3155 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3156 "3314 Toplogy changed was 0x%x is 0x%x\n", 3157 phba->fc_topology, 3158 bf_get(lpfc_mbx_read_top_topology, la)); 3159 phba->fc_topology_changed = 1; 3160 } 3161 3162 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3163 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3164 3165 shost = lpfc_shost_from_vport(vport); 3166 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3167 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3168 3169 /* if npiv is enabled and this adapter supports npiv log 3170 * a message that npiv is not supported in this topology 3171 */ 3172 if (phba->cfg_enable_npiv && phba->max_vpi) 3173 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3174 "1309 Link Up Event npiv not supported in loop " 3175 "topology\n"); 3176 /* Get Loop Map information */ 3177 if (bf_get(lpfc_mbx_read_top_il, la)) 3178 fc_flags |= FC_LBIT; 3179 3180 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3181 i = la->lilpBde64.tus.f.bdeSize; 3182 3183 if (i == 0) { 3184 phba->alpa_map[0] = 0; 3185 } else { 3186 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3187 int numalpa, j, k; 3188 union { 3189 uint8_t pamap[16]; 3190 struct { 3191 uint32_t wd1; 3192 uint32_t wd2; 3193 uint32_t wd3; 3194 uint32_t wd4; 3195 } pa; 3196 } un; 3197 numalpa = phba->alpa_map[0]; 3198 j = 0; 3199 while (j < numalpa) { 3200 memset(un.pamap, 0, 16); 3201 for (k = 1; j < numalpa; k++) { 3202 un.pamap[k - 1] = 3203 phba->alpa_map[j + 1]; 3204 j++; 3205 if (k == 16) 3206 break; 3207 } 3208 /* Link Up Event ALPA map */ 3209 lpfc_printf_log(phba, 3210 KERN_WARNING, 3211 LOG_LINK_EVENT, 3212 "1304 Link Up Event " 3213 "ALPA map Data: x%x " 3214 "x%x x%x x%x\n", 3215 un.pa.wd1, un.pa.wd2, 3216 un.pa.wd3, un.pa.wd4); 3217 } 3218 } 3219 } 3220 } else { 3221 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3222 if (phba->max_vpi && phba->cfg_enable_npiv && 3223 (phba->sli_rev >= LPFC_SLI_REV3)) 3224 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3225 } 3226 vport->fc_myDID = phba->fc_pref_DID; 3227 fc_flags |= FC_LBIT; 3228 } 3229 spin_unlock_irqrestore(&phba->hbalock, iflags); 3230 3231 if (fc_flags) { 3232 spin_lock_irqsave(shost->host_lock, iflags); 3233 vport->fc_flag |= fc_flags; 3234 spin_unlock_irqrestore(shost->host_lock, iflags); 3235 } 3236 3237 lpfc_linkup(phba); 3238 sparam_mbox = NULL; 3239 3240 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3241 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3242 if (!cfglink_mbox) 3243 goto out; 3244 vport->port_state = LPFC_LOCAL_CFG_LINK; 3245 lpfc_config_link(phba, cfglink_mbox); 3246 cfglink_mbox->vport = vport; 3247 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3248 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3249 if (rc == MBX_NOT_FINISHED) { 3250 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3251 goto out; 3252 } 3253 } 3254 3255 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3256 if (!sparam_mbox) 3257 goto out; 3258 3259 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3260 if (rc) { 3261 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3262 goto out; 3263 } 3264 sparam_mbox->vport = vport; 3265 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3266 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3267 if (rc == MBX_NOT_FINISHED) { 3268 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3269 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3270 kfree(mp); 3271 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3272 goto out; 3273 } 3274 3275 if (phba->hba_flag & HBA_FCOE_MODE) { 3276 vport->port_state = LPFC_VPORT_UNKNOWN; 3277 /* 3278 * Add the driver's default FCF record at FCF index 0 now. This 3279 * is phase 1 implementation that support FCF index 0 and driver 3280 * defaults. 3281 */ 3282 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3283 fcf_record = kzalloc(sizeof(struct fcf_record), 3284 GFP_KERNEL); 3285 if (unlikely(!fcf_record)) { 3286 lpfc_printf_log(phba, KERN_ERR, 3287 LOG_MBOX | LOG_SLI, 3288 "2554 Could not allocate memory for " 3289 "fcf record\n"); 3290 rc = -ENODEV; 3291 goto out; 3292 } 3293 3294 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3295 LPFC_FCOE_FCF_DEF_INDEX); 3296 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3297 if (unlikely(rc)) { 3298 lpfc_printf_log(phba, KERN_ERR, 3299 LOG_MBOX | LOG_SLI, 3300 "2013 Could not manually add FCF " 3301 "record 0, status %d\n", rc); 3302 rc = -ENODEV; 3303 kfree(fcf_record); 3304 goto out; 3305 } 3306 kfree(fcf_record); 3307 } 3308 /* 3309 * The driver is expected to do FIP/FCF. Call the port 3310 * and get the FCF Table. 3311 */ 3312 spin_lock_irqsave(&phba->hbalock, iflags); 3313 if (phba->hba_flag & FCF_TS_INPROG) { 3314 spin_unlock_irqrestore(&phba->hbalock, iflags); 3315 return; 3316 } 3317 /* This is the initial FCF discovery scan */ 3318 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3319 spin_unlock_irqrestore(&phba->hbalock, iflags); 3320 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3321 "2778 Start FCF table scan at linkup\n"); 3322 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3323 LPFC_FCOE_FCF_GET_FIRST); 3324 if (rc) { 3325 spin_lock_irqsave(&phba->hbalock, iflags); 3326 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3327 spin_unlock_irqrestore(&phba->hbalock, iflags); 3328 goto out; 3329 } 3330 /* Reset FCF roundrobin bmask for new discovery */ 3331 lpfc_sli4_clear_fcf_rr_bmask(phba); 3332 } else { 3333 if (phba->bbcredit_support && phba->cfg_enable_bbcr && 3334 !(phba->link_flag & LS_LOOPBACK_MODE)) 3335 phba->hba_flag |= HBA_DEFER_FLOGI; 3336 } 3337 3338 /* Prepare for LINK up registrations */ 3339 memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); 3340 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", 3341 init_utsname()->nodename); 3342 return; 3343 out: 3344 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3345 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3346 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3347 vport->port_state, sparam_mbox, cfglink_mbox); 3348 lpfc_issue_clear_la(phba, vport); 3349 return; 3350 } 3351 3352 static void 3353 lpfc_enable_la(struct lpfc_hba *phba) 3354 { 3355 uint32_t control; 3356 struct lpfc_sli *psli = &phba->sli; 3357 spin_lock_irq(&phba->hbalock); 3358 psli->sli_flag |= LPFC_PROCESS_LA; 3359 if (phba->sli_rev <= LPFC_SLI_REV3) { 3360 control = readl(phba->HCregaddr); 3361 control |= HC_LAINT_ENA; 3362 writel(control, phba->HCregaddr); 3363 readl(phba->HCregaddr); /* flush */ 3364 } 3365 spin_unlock_irq(&phba->hbalock); 3366 } 3367 3368 static void 3369 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3370 { 3371 lpfc_linkdown(phba); 3372 lpfc_enable_la(phba); 3373 lpfc_unregister_unused_fcf(phba); 3374 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3375 } 3376 3377 3378 /* 3379 * This routine handles processing a READ_TOPOLOGY mailbox 3380 * command upon completion. It is setup in the LPFC_MBOXQ 3381 * as the completion routine when the command is 3382 * handed off to the SLI layer. SLI4 only. 3383 */ 3384 void 3385 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3386 { 3387 struct lpfc_vport *vport = pmb->vport; 3388 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3389 struct lpfc_mbx_read_top *la; 3390 struct lpfc_sli_ring *pring; 3391 MAILBOX_t *mb = &pmb->u.mb; 3392 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3393 uint8_t attn_type; 3394 unsigned long iflags; 3395 3396 /* Unblock ELS traffic */ 3397 pring = lpfc_phba_elsring(phba); 3398 if (pring) 3399 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3400 3401 /* Check for error */ 3402 if (mb->mbxStatus) { 3403 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3404 "1307 READ_LA mbox error x%x state x%x\n", 3405 mb->mbxStatus, vport->port_state); 3406 lpfc_mbx_issue_link_down(phba); 3407 phba->link_state = LPFC_HBA_ERROR; 3408 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3409 } 3410 3411 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3412 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3413 3414 memcpy(&phba->alpa_map[0], mp->virt, 128); 3415 3416 spin_lock_irqsave(shost->host_lock, iflags); 3417 if (bf_get(lpfc_mbx_read_top_pb, la)) 3418 vport->fc_flag |= FC_BYPASSED_MODE; 3419 else 3420 vport->fc_flag &= ~FC_BYPASSED_MODE; 3421 spin_unlock_irqrestore(shost->host_lock, iflags); 3422 3423 if (phba->fc_eventTag <= la->eventTag) { 3424 phba->fc_stat.LinkMultiEvent++; 3425 if (attn_type == LPFC_ATT_LINK_UP) 3426 if (phba->fc_eventTag != 0) 3427 lpfc_linkdown(phba); 3428 } 3429 3430 phba->fc_eventTag = la->eventTag; 3431 if (phba->sli_rev < LPFC_SLI_REV4) { 3432 spin_lock_irqsave(&phba->hbalock, iflags); 3433 if (bf_get(lpfc_mbx_read_top_mm, la)) 3434 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3435 else 3436 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3437 spin_unlock_irqrestore(&phba->hbalock, iflags); 3438 } 3439 3440 phba->link_events++; 3441 if ((attn_type == LPFC_ATT_LINK_UP) && 3442 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3443 phba->fc_stat.LinkUp++; 3444 if (phba->link_flag & LS_LOOPBACK_MODE) { 3445 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3446 "1306 Link Up Event in loop back mode " 3447 "x%x received Data: x%x x%x x%x x%x\n", 3448 la->eventTag, phba->fc_eventTag, 3449 bf_get(lpfc_mbx_read_top_alpa_granted, 3450 la), 3451 bf_get(lpfc_mbx_read_top_link_spd, la), 3452 phba->alpa_map[0]); 3453 } else { 3454 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3455 "1303 Link Up Event x%x received " 3456 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3457 la->eventTag, phba->fc_eventTag, 3458 bf_get(lpfc_mbx_read_top_alpa_granted, 3459 la), 3460 bf_get(lpfc_mbx_read_top_link_spd, la), 3461 phba->alpa_map[0], 3462 bf_get(lpfc_mbx_read_top_mm, la), 3463 bf_get(lpfc_mbx_read_top_fa, la), 3464 phba->wait_4_mlo_maint_flg); 3465 } 3466 lpfc_mbx_process_link_up(phba, la); 3467 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3468 attn_type == LPFC_ATT_UNEXP_WWPN) { 3469 phba->fc_stat.LinkDown++; 3470 if (phba->link_flag & LS_LOOPBACK_MODE) 3471 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3472 "1308 Link Down Event in loop back mode " 3473 "x%x received " 3474 "Data: x%x x%x x%x\n", 3475 la->eventTag, phba->fc_eventTag, 3476 phba->pport->port_state, vport->fc_flag); 3477 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3478 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3479 "1313 Link Down Unexpected FA WWPN Event x%x " 3480 "received Data: x%x x%x x%x x%x x%x\n", 3481 la->eventTag, phba->fc_eventTag, 3482 phba->pport->port_state, vport->fc_flag, 3483 bf_get(lpfc_mbx_read_top_mm, la), 3484 bf_get(lpfc_mbx_read_top_fa, la)); 3485 else 3486 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3487 "1305 Link Down Event x%x received " 3488 "Data: x%x x%x x%x x%x x%x\n", 3489 la->eventTag, phba->fc_eventTag, 3490 phba->pport->port_state, vport->fc_flag, 3491 bf_get(lpfc_mbx_read_top_mm, la), 3492 bf_get(lpfc_mbx_read_top_fa, la)); 3493 lpfc_mbx_issue_link_down(phba); 3494 } 3495 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3496 attn_type == LPFC_ATT_LINK_UP) { 3497 if (phba->link_state != LPFC_LINK_DOWN) { 3498 phba->fc_stat.LinkDown++; 3499 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3500 "1312 Link Down Event x%x received " 3501 "Data: x%x x%x x%x\n", 3502 la->eventTag, phba->fc_eventTag, 3503 phba->pport->port_state, vport->fc_flag); 3504 lpfc_mbx_issue_link_down(phba); 3505 } else 3506 lpfc_enable_la(phba); 3507 3508 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3509 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3510 "Data: x%x x%x x%x\n", 3511 la->eventTag, phba->fc_eventTag, 3512 phba->pport->port_state, vport->fc_flag); 3513 /* 3514 * The cmnd that triggered this will be waiting for this 3515 * signal. 3516 */ 3517 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3518 if (phba->wait_4_mlo_maint_flg) { 3519 phba->wait_4_mlo_maint_flg = 0; 3520 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3521 } 3522 } 3523 3524 if ((phba->sli_rev < LPFC_SLI_REV4) && 3525 bf_get(lpfc_mbx_read_top_fa, la)) { 3526 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3527 lpfc_issue_clear_la(phba, vport); 3528 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3529 "1311 fa %d\n", 3530 bf_get(lpfc_mbx_read_top_fa, la)); 3531 } 3532 3533 lpfc_mbx_cmpl_read_topology_free_mbuf: 3534 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3535 kfree(mp); 3536 mempool_free(pmb, phba->mbox_mem_pool); 3537 return; 3538 } 3539 3540 /* 3541 * This routine handles processing a REG_LOGIN mailbox 3542 * command upon completion. It is setup in the LPFC_MBOXQ 3543 * as the completion routine when the command is 3544 * handed off to the SLI layer. 3545 */ 3546 void 3547 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3548 { 3549 struct lpfc_vport *vport = pmb->vport; 3550 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3551 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3552 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3553 3554 pmb->ctx_buf = NULL; 3555 pmb->ctx_ndlp = NULL; 3556 3557 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3558 "0002 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 3559 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3560 kref_read(&ndlp->kref), 3561 ndlp->nlp_usg_map, ndlp); 3562 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3563 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3564 3565 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3566 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3567 /* We rcvd a rscn after issuing this 3568 * mbox reg login, we may have cycled 3569 * back through the state and be 3570 * back at reg login state so this 3571 * mbox needs to be ignored becase 3572 * there is another reg login in 3573 * process. 3574 */ 3575 spin_lock_irq(shost->host_lock); 3576 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3577 spin_unlock_irq(shost->host_lock); 3578 3579 /* 3580 * We cannot leave the RPI registered because 3581 * if we go thru discovery again for this ndlp 3582 * a subsequent REG_RPI will fail. 3583 */ 3584 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3585 lpfc_unreg_rpi(vport, ndlp); 3586 } 3587 3588 /* Call state machine */ 3589 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3590 3591 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3592 kfree(mp); 3593 mempool_free(pmb, phba->mbox_mem_pool); 3594 /* decrement the node reference count held for this callback 3595 * function. 3596 */ 3597 lpfc_nlp_put(ndlp); 3598 3599 return; 3600 } 3601 3602 static void 3603 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3604 { 3605 MAILBOX_t *mb = &pmb->u.mb; 3606 struct lpfc_vport *vport = pmb->vport; 3607 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3608 3609 switch (mb->mbxStatus) { 3610 case 0x0011: 3611 case 0x0020: 3612 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3613 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3614 mb->mbxStatus); 3615 break; 3616 /* If VPI is busy, reset the HBA */ 3617 case 0x9700: 3618 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3619 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3620 vport->vpi, mb->mbxStatus); 3621 if (!(phba->pport->load_flag & FC_UNLOADING)) 3622 lpfc_workq_post_event(phba, NULL, NULL, 3623 LPFC_EVT_RESET_HBA); 3624 } 3625 spin_lock_irq(shost->host_lock); 3626 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3627 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3628 spin_unlock_irq(shost->host_lock); 3629 vport->unreg_vpi_cmpl = VPORT_OK; 3630 mempool_free(pmb, phba->mbox_mem_pool); 3631 lpfc_cleanup_vports_rrqs(vport, NULL); 3632 /* 3633 * This shost reference might have been taken at the beginning of 3634 * lpfc_vport_delete() 3635 */ 3636 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3637 scsi_host_put(shost); 3638 } 3639 3640 int 3641 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3642 { 3643 struct lpfc_hba *phba = vport->phba; 3644 LPFC_MBOXQ_t *mbox; 3645 int rc; 3646 3647 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3648 if (!mbox) 3649 return 1; 3650 3651 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3652 mbox->vport = vport; 3653 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3654 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3655 if (rc == MBX_NOT_FINISHED) { 3656 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3657 "1800 Could not issue unreg_vpi\n"); 3658 mempool_free(mbox, phba->mbox_mem_pool); 3659 vport->unreg_vpi_cmpl = VPORT_ERROR; 3660 return rc; 3661 } 3662 return 0; 3663 } 3664 3665 static void 3666 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3667 { 3668 struct lpfc_vport *vport = pmb->vport; 3669 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3670 MAILBOX_t *mb = &pmb->u.mb; 3671 3672 switch (mb->mbxStatus) { 3673 case 0x0011: 3674 case 0x9601: 3675 case 0x9602: 3676 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3677 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3678 mb->mbxStatus); 3679 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3680 spin_lock_irq(shost->host_lock); 3681 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3682 spin_unlock_irq(shost->host_lock); 3683 vport->fc_myDID = 0; 3684 3685 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3686 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3687 if (phba->nvmet_support) 3688 lpfc_nvmet_update_targetport(phba); 3689 else 3690 lpfc_nvme_update_localport(vport); 3691 } 3692 goto out; 3693 } 3694 3695 spin_lock_irq(shost->host_lock); 3696 vport->vpi_state |= LPFC_VPI_REGISTERED; 3697 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3698 spin_unlock_irq(shost->host_lock); 3699 vport->num_disc_nodes = 0; 3700 /* go thru NPR list and issue ELS PLOGIs */ 3701 if (vport->fc_npr_cnt) 3702 lpfc_els_disc_plogi(vport); 3703 3704 if (!vport->num_disc_nodes) { 3705 spin_lock_irq(shost->host_lock); 3706 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3707 spin_unlock_irq(shost->host_lock); 3708 lpfc_can_disctmo(vport); 3709 } 3710 vport->port_state = LPFC_VPORT_READY; 3711 3712 out: 3713 mempool_free(pmb, phba->mbox_mem_pool); 3714 return; 3715 } 3716 3717 /** 3718 * lpfc_create_static_vport - Read HBA config region to create static vports. 3719 * @phba: pointer to lpfc hba data structure. 3720 * 3721 * This routine issue a DUMP mailbox command for config region 22 to get 3722 * the list of static vports to be created. The function create vports 3723 * based on the information returned from the HBA. 3724 **/ 3725 void 3726 lpfc_create_static_vport(struct lpfc_hba *phba) 3727 { 3728 LPFC_MBOXQ_t *pmb = NULL; 3729 MAILBOX_t *mb; 3730 struct static_vport_info *vport_info; 3731 int mbx_wait_rc = 0, i; 3732 struct fc_vport_identifiers vport_id; 3733 struct fc_vport *new_fc_vport; 3734 struct Scsi_Host *shost; 3735 struct lpfc_vport *vport; 3736 uint16_t offset = 0; 3737 uint8_t *vport_buff; 3738 struct lpfc_dmabuf *mp; 3739 uint32_t byte_count = 0; 3740 3741 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3742 if (!pmb) { 3743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3744 "0542 lpfc_create_static_vport failed to" 3745 " allocate mailbox memory\n"); 3746 return; 3747 } 3748 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3749 mb = &pmb->u.mb; 3750 3751 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3752 if (!vport_info) { 3753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3754 "0543 lpfc_create_static_vport failed to" 3755 " allocate vport_info\n"); 3756 mempool_free(pmb, phba->mbox_mem_pool); 3757 return; 3758 } 3759 3760 vport_buff = (uint8_t *) vport_info; 3761 do { 3762 /* free dma buffer from previous round */ 3763 if (pmb->ctx_buf) { 3764 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3765 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3766 kfree(mp); 3767 } 3768 if (lpfc_dump_static_vport(phba, pmb, offset)) 3769 goto out; 3770 3771 pmb->vport = phba->pport; 3772 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3773 LPFC_MBOX_TMO); 3774 3775 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3776 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3777 "0544 lpfc_create_static_vport failed to" 3778 " issue dump mailbox command ret 0x%x " 3779 "status 0x%x\n", 3780 mbx_wait_rc, mb->mbxStatus); 3781 goto out; 3782 } 3783 3784 if (phba->sli_rev == LPFC_SLI_REV4) { 3785 byte_count = pmb->u.mqe.un.mb_words[5]; 3786 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3787 if (byte_count > sizeof(struct static_vport_info) - 3788 offset) 3789 byte_count = sizeof(struct static_vport_info) 3790 - offset; 3791 memcpy(vport_buff + offset, mp->virt, byte_count); 3792 offset += byte_count; 3793 } else { 3794 if (mb->un.varDmp.word_cnt > 3795 sizeof(struct static_vport_info) - offset) 3796 mb->un.varDmp.word_cnt = 3797 sizeof(struct static_vport_info) 3798 - offset; 3799 byte_count = mb->un.varDmp.word_cnt; 3800 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3801 vport_buff + offset, 3802 byte_count); 3803 3804 offset += byte_count; 3805 } 3806 3807 } while (byte_count && 3808 offset < sizeof(struct static_vport_info)); 3809 3810 3811 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3812 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3813 != VPORT_INFO_REV)) { 3814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3815 "0545 lpfc_create_static_vport bad" 3816 " information header 0x%x 0x%x\n", 3817 le32_to_cpu(vport_info->signature), 3818 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3819 3820 goto out; 3821 } 3822 3823 shost = lpfc_shost_from_vport(phba->pport); 3824 3825 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3826 memset(&vport_id, 0, sizeof(vport_id)); 3827 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3828 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3829 if (!vport_id.port_name || !vport_id.node_name) 3830 continue; 3831 3832 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3833 vport_id.vport_type = FC_PORTTYPE_NPIV; 3834 vport_id.disable = false; 3835 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3836 3837 if (!new_fc_vport) { 3838 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3839 "0546 lpfc_create_static_vport failed to" 3840 " create vport\n"); 3841 continue; 3842 } 3843 3844 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3845 vport->vport_flag |= STATIC_VPORT; 3846 } 3847 3848 out: 3849 kfree(vport_info); 3850 if (mbx_wait_rc != MBX_TIMEOUT) { 3851 if (pmb->ctx_buf) { 3852 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3853 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3854 kfree(mp); 3855 } 3856 mempool_free(pmb, phba->mbox_mem_pool); 3857 } 3858 3859 return; 3860 } 3861 3862 /* 3863 * This routine handles processing a Fabric REG_LOGIN mailbox 3864 * command upon completion. It is setup in the LPFC_MBOXQ 3865 * as the completion routine when the command is 3866 * handed off to the SLI layer. 3867 */ 3868 void 3869 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3870 { 3871 struct lpfc_vport *vport = pmb->vport; 3872 MAILBOX_t *mb = &pmb->u.mb; 3873 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3874 struct lpfc_nodelist *ndlp; 3875 struct Scsi_Host *shost; 3876 3877 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3878 pmb->ctx_ndlp = NULL; 3879 pmb->ctx_buf = NULL; 3880 3881 if (mb->mbxStatus) { 3882 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3883 "0258 Register Fabric login error: 0x%x\n", 3884 mb->mbxStatus); 3885 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3886 kfree(mp); 3887 mempool_free(pmb, phba->mbox_mem_pool); 3888 3889 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3890 /* FLOGI failed, use loop map to make discovery list */ 3891 lpfc_disc_list_loopmap(vport); 3892 3893 /* Start discovery */ 3894 lpfc_disc_start(vport); 3895 /* Decrement the reference count to ndlp after the 3896 * reference to the ndlp are done. 3897 */ 3898 lpfc_nlp_put(ndlp); 3899 return; 3900 } 3901 3902 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3903 /* Decrement the reference count to ndlp after the reference 3904 * to the ndlp are done. 3905 */ 3906 lpfc_nlp_put(ndlp); 3907 return; 3908 } 3909 3910 if (phba->sli_rev < LPFC_SLI_REV4) 3911 ndlp->nlp_rpi = mb->un.varWords[0]; 3912 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3913 ndlp->nlp_type |= NLP_FABRIC; 3914 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3915 3916 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3917 /* when physical port receive logo donot start 3918 * vport discovery */ 3919 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3920 lpfc_start_fdiscs(phba); 3921 else { 3922 shost = lpfc_shost_from_vport(vport); 3923 spin_lock_irq(shost->host_lock); 3924 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3925 spin_unlock_irq(shost->host_lock); 3926 } 3927 lpfc_do_scr_ns_plogi(phba, vport); 3928 } 3929 3930 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3931 kfree(mp); 3932 mempool_free(pmb, phba->mbox_mem_pool); 3933 3934 /* Drop the reference count from the mbox at the end after 3935 * all the current reference to the ndlp have been done. 3936 */ 3937 lpfc_nlp_put(ndlp); 3938 return; 3939 } 3940 3941 /* 3942 * This routine will issue a GID_FT for each FC4 Type supported 3943 * by the driver. ALL GID_FTs must complete before discovery is started. 3944 */ 3945 int 3946 lpfc_issue_gidft(struct lpfc_vport *vport) 3947 { 3948 /* Good status, issue CT Request to NameServer */ 3949 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3950 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3951 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3952 /* Cannot issue NameServer FCP Query, so finish up 3953 * discovery 3954 */ 3955 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3956 "0604 %s FC TYPE %x %s\n", 3957 "Failed to issue GID_FT to ", 3958 FC_TYPE_FCP, 3959 "Finishing discovery."); 3960 return 0; 3961 } 3962 vport->gidft_inp++; 3963 } 3964 3965 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3966 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3967 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3968 /* Cannot issue NameServer NVME Query, so finish up 3969 * discovery 3970 */ 3971 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3972 "0605 %s FC_TYPE %x %s %d\n", 3973 "Failed to issue GID_FT to ", 3974 FC_TYPE_NVME, 3975 "Finishing discovery: gidftinp ", 3976 vport->gidft_inp); 3977 if (vport->gidft_inp == 0) 3978 return 0; 3979 } else 3980 vport->gidft_inp++; 3981 } 3982 return vport->gidft_inp; 3983 } 3984 3985 /** 3986 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 3987 * @vport: The virtual port for which this call is being executed. 3988 * 3989 * This routine will issue a GID_PT to get a list of all N_Ports 3990 * 3991 * Return value : 3992 * 0 - Failure to issue a GID_PT 3993 * 1 - GID_PT issued 3994 **/ 3995 int 3996 lpfc_issue_gidpt(struct lpfc_vport *vport) 3997 { 3998 /* Good status, issue CT Request to NameServer */ 3999 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 4000 /* Cannot issue NameServer FCP Query, so finish up 4001 * discovery 4002 */ 4003 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 4004 "0606 %s Port TYPE %x %s\n", 4005 "Failed to issue GID_PT to ", 4006 GID_PT_N_PORT, 4007 "Finishing discovery."); 4008 return 0; 4009 } 4010 vport->gidft_inp++; 4011 return 1; 4012 } 4013 4014 /* 4015 * This routine handles processing a NameServer REG_LOGIN mailbox 4016 * command upon completion. It is setup in the LPFC_MBOXQ 4017 * as the completion routine when the command is 4018 * handed off to the SLI layer. 4019 */ 4020 void 4021 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4022 { 4023 MAILBOX_t *mb = &pmb->u.mb; 4024 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4025 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4026 struct lpfc_vport *vport = pmb->vport; 4027 4028 pmb->ctx_buf = NULL; 4029 pmb->ctx_ndlp = NULL; 4030 vport->gidft_inp = 0; 4031 4032 if (mb->mbxStatus) { 4033 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4034 "0260 Register NameServer error: 0x%x\n", 4035 mb->mbxStatus); 4036 4037 out: 4038 /* decrement the node reference count held for this 4039 * callback function. 4040 */ 4041 lpfc_nlp_put(ndlp); 4042 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4043 kfree(mp); 4044 mempool_free(pmb, phba->mbox_mem_pool); 4045 4046 /* If no other thread is using the ndlp, free it */ 4047 lpfc_nlp_not_used(ndlp); 4048 4049 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4050 /* 4051 * RegLogin failed, use loop map to make discovery 4052 * list 4053 */ 4054 lpfc_disc_list_loopmap(vport); 4055 4056 /* Start discovery */ 4057 lpfc_disc_start(vport); 4058 return; 4059 } 4060 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4061 return; 4062 } 4063 4064 if (phba->sli_rev < LPFC_SLI_REV4) 4065 ndlp->nlp_rpi = mb->un.varWords[0]; 4066 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4067 ndlp->nlp_type |= NLP_FABRIC; 4068 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4069 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4070 "0003 rpi:%x DID:%x flg:%x %d map%x x%px\n", 4071 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4072 kref_read(&ndlp->kref), 4073 ndlp->nlp_usg_map, ndlp); 4074 4075 if (vport->port_state < LPFC_VPORT_READY) { 4076 /* Link up discovery requires Fabric registration. */ 4077 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4078 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4079 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4080 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4081 4082 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4083 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4084 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4085 4086 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4087 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4088 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4089 FC_TYPE_NVME); 4090 4091 /* Issue SCR just before NameServer GID_FT Query */ 4092 lpfc_issue_els_scr(vport, 0); 4093 4094 lpfc_issue_els_rdf(vport, 0); 4095 } 4096 4097 vport->fc_ns_retry = 0; 4098 if (lpfc_issue_gidft(vport) == 0) 4099 goto out; 4100 4101 /* 4102 * At this point in time we may need to wait for multiple 4103 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4104 * 4105 * decrement the node reference count held for this 4106 * callback function. 4107 */ 4108 lpfc_nlp_put(ndlp); 4109 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4110 kfree(mp); 4111 mempool_free(pmb, phba->mbox_mem_pool); 4112 4113 return; 4114 } 4115 4116 static void 4117 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4118 { 4119 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4120 struct fc_rport *rport; 4121 struct lpfc_rport_data *rdata; 4122 struct fc_rport_identifiers rport_ids; 4123 struct lpfc_hba *phba = vport->phba; 4124 4125 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4126 return; 4127 4128 /* Remote port has reappeared. Re-register w/ FC transport */ 4129 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4130 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4131 rport_ids.port_id = ndlp->nlp_DID; 4132 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4133 4134 /* 4135 * We leave our node pointer in rport->dd_data when we unregister a 4136 * FCP target port. But fc_remote_port_add zeros the space to which 4137 * rport->dd_data points. So, if we're reusing a previously 4138 * registered port, drop the reference that we took the last time we 4139 * registered the port. 4140 */ 4141 rport = ndlp->rport; 4142 if (rport) { 4143 rdata = rport->dd_data; 4144 /* break the link before dropping the ref */ 4145 ndlp->rport = NULL; 4146 if (rdata) { 4147 if (rdata->pnode == ndlp) 4148 lpfc_nlp_put(ndlp); 4149 rdata->pnode = NULL; 4150 } 4151 /* drop reference for earlier registeration */ 4152 put_device(&rport->dev); 4153 } 4154 4155 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4156 "rport add: did:x%x flg:x%x type x%x", 4157 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4158 4159 /* Don't add the remote port if unloading. */ 4160 if (vport->load_flag & FC_UNLOADING) 4161 return; 4162 4163 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4164 if (!rport || !get_device(&rport->dev)) { 4165 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4166 "Warning: fc_remote_port_add failed\n"); 4167 return; 4168 } 4169 4170 /* initialize static port data */ 4171 rport->maxframe_size = ndlp->nlp_maxframe; 4172 rport->supported_classes = ndlp->nlp_class_sup; 4173 rdata = rport->dd_data; 4174 rdata->pnode = lpfc_nlp_get(ndlp); 4175 4176 if (ndlp->nlp_type & NLP_FCP_TARGET) 4177 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4178 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4179 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4180 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4181 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4182 if (ndlp->nlp_type & NLP_NVME_TARGET) 4183 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4184 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4185 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4186 4187 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4188 fc_remote_port_rolechg(rport, rport_ids.roles); 4189 4190 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4191 "3183 rport register x%06x, rport x%px role x%x\n", 4192 ndlp->nlp_DID, rport, rport_ids.roles); 4193 4194 if ((rport->scsi_target_id != -1) && 4195 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4196 ndlp->nlp_sid = rport->scsi_target_id; 4197 } 4198 return; 4199 } 4200 4201 static void 4202 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4203 { 4204 struct fc_rport *rport = ndlp->rport; 4205 struct lpfc_vport *vport = ndlp->vport; 4206 4207 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4208 return; 4209 4210 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4211 "rport delete: did:x%x flg:x%x type x%x", 4212 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4213 4214 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4215 "3184 rport unregister x%06x, rport x%px\n", 4216 ndlp->nlp_DID, rport); 4217 4218 fc_remote_port_delete(rport); 4219 4220 return; 4221 } 4222 4223 static void 4224 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4225 { 4226 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4227 unsigned long iflags; 4228 4229 spin_lock_irqsave(shost->host_lock, iflags); 4230 switch (state) { 4231 case NLP_STE_UNUSED_NODE: 4232 vport->fc_unused_cnt += count; 4233 break; 4234 case NLP_STE_PLOGI_ISSUE: 4235 vport->fc_plogi_cnt += count; 4236 break; 4237 case NLP_STE_ADISC_ISSUE: 4238 vport->fc_adisc_cnt += count; 4239 break; 4240 case NLP_STE_REG_LOGIN_ISSUE: 4241 vport->fc_reglogin_cnt += count; 4242 break; 4243 case NLP_STE_PRLI_ISSUE: 4244 vport->fc_prli_cnt += count; 4245 break; 4246 case NLP_STE_UNMAPPED_NODE: 4247 vport->fc_unmap_cnt += count; 4248 break; 4249 case NLP_STE_MAPPED_NODE: 4250 vport->fc_map_cnt += count; 4251 break; 4252 case NLP_STE_NPR_NODE: 4253 if (vport->fc_npr_cnt == 0 && count == -1) 4254 vport->fc_npr_cnt = 0; 4255 else 4256 vport->fc_npr_cnt += count; 4257 break; 4258 } 4259 spin_unlock_irqrestore(shost->host_lock, iflags); 4260 } 4261 4262 static void 4263 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4264 int old_state, int new_state) 4265 { 4266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4267 4268 if (new_state == NLP_STE_UNMAPPED_NODE) { 4269 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4270 ndlp->nlp_type |= NLP_FC_NODE; 4271 } 4272 if (new_state == NLP_STE_MAPPED_NODE) 4273 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4274 if (new_state == NLP_STE_NPR_NODE) 4275 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4276 4277 /* FCP and NVME Transport interface */ 4278 if ((old_state == NLP_STE_MAPPED_NODE || 4279 old_state == NLP_STE_UNMAPPED_NODE)) { 4280 if (ndlp->rport) { 4281 vport->phba->nport_event_cnt++; 4282 lpfc_unregister_remote_port(ndlp); 4283 } 4284 4285 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4286 vport->phba->nport_event_cnt++; 4287 if (vport->phba->nvmet_support == 0) { 4288 /* Start devloss if target. */ 4289 if (ndlp->nlp_type & NLP_NVME_TARGET) 4290 lpfc_nvme_unregister_port(vport, ndlp); 4291 } else { 4292 /* NVMET has no upcall. */ 4293 lpfc_nlp_put(ndlp); 4294 } 4295 } 4296 } 4297 4298 /* FCP and NVME Transport interfaces */ 4299 4300 if (new_state == NLP_STE_MAPPED_NODE || 4301 new_state == NLP_STE_UNMAPPED_NODE) { 4302 if (ndlp->nlp_fc4_type || 4303 ndlp->nlp_DID == Fabric_DID || 4304 ndlp->nlp_DID == NameServer_DID || 4305 ndlp->nlp_DID == FDMI_DID) { 4306 vport->phba->nport_event_cnt++; 4307 /* 4308 * Tell the fc transport about the port, if we haven't 4309 * already. If we have, and it's a scsi entity, be 4310 */ 4311 lpfc_register_remote_port(vport, ndlp); 4312 } 4313 /* Notify the NVME transport of this new rport. */ 4314 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4315 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4316 if (vport->phba->nvmet_support == 0) { 4317 /* Register this rport with the transport. 4318 * Only NVME Target Rports are registered with 4319 * the transport. 4320 */ 4321 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4322 vport->phba->nport_event_cnt++; 4323 lpfc_nvme_register_port(vport, ndlp); 4324 } 4325 } else { 4326 /* Just take an NDLP ref count since the 4327 * target does not register rports. 4328 */ 4329 lpfc_nlp_get(ndlp); 4330 } 4331 } 4332 } 4333 4334 if ((new_state == NLP_STE_MAPPED_NODE) && 4335 (vport->stat_data_enabled)) { 4336 /* 4337 * A new target is discovered, if there is no buffer for 4338 * statistical data collection allocate buffer. 4339 */ 4340 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4341 sizeof(struct lpfc_scsicmd_bkt), 4342 GFP_KERNEL); 4343 4344 if (!ndlp->lat_data) 4345 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4346 "0286 lpfc_nlp_state_cleanup failed to " 4347 "allocate statistical data buffer DID " 4348 "0x%x\n", ndlp->nlp_DID); 4349 } 4350 /* 4351 * If the node just added to Mapped list was an FCP target, 4352 * but the remote port registration failed or assigned a target 4353 * id outside the presentable range - move the node to the 4354 * Unmapped List. 4355 */ 4356 if ((new_state == NLP_STE_MAPPED_NODE) && 4357 (ndlp->nlp_type & NLP_FCP_TARGET) && 4358 (!ndlp->rport || 4359 ndlp->rport->scsi_target_id == -1 || 4360 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4361 spin_lock_irq(shost->host_lock); 4362 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4363 spin_unlock_irq(shost->host_lock); 4364 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4365 } 4366 } 4367 4368 static char * 4369 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4370 { 4371 static char *states[] = { 4372 [NLP_STE_UNUSED_NODE] = "UNUSED", 4373 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4374 [NLP_STE_ADISC_ISSUE] = "ADISC", 4375 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4376 [NLP_STE_PRLI_ISSUE] = "PRLI", 4377 [NLP_STE_LOGO_ISSUE] = "LOGO", 4378 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4379 [NLP_STE_MAPPED_NODE] = "MAPPED", 4380 [NLP_STE_NPR_NODE] = "NPR", 4381 }; 4382 4383 if (state < NLP_STE_MAX_STATE && states[state]) 4384 strlcpy(buffer, states[state], size); 4385 else 4386 snprintf(buffer, size, "unknown (%d)", state); 4387 return buffer; 4388 } 4389 4390 void 4391 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4392 int state) 4393 { 4394 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4395 int old_state = ndlp->nlp_state; 4396 char name1[16], name2[16]; 4397 4398 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4399 "0904 NPort state transition x%06x, %s -> %s\n", 4400 ndlp->nlp_DID, 4401 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4402 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4403 4404 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4405 "node statechg did:x%x old:%d ste:%d", 4406 ndlp->nlp_DID, old_state, state); 4407 4408 if (old_state == NLP_STE_NPR_NODE && 4409 state != NLP_STE_NPR_NODE) 4410 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4411 if (old_state == NLP_STE_UNMAPPED_NODE) { 4412 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4413 ndlp->nlp_type &= ~NLP_FC_NODE; 4414 } 4415 4416 if (list_empty(&ndlp->nlp_listp)) { 4417 spin_lock_irq(shost->host_lock); 4418 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4419 spin_unlock_irq(shost->host_lock); 4420 } else if (old_state) 4421 lpfc_nlp_counters(vport, old_state, -1); 4422 4423 ndlp->nlp_state = state; 4424 lpfc_nlp_counters(vport, state, 1); 4425 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4426 } 4427 4428 void 4429 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4430 { 4431 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4432 4433 if (list_empty(&ndlp->nlp_listp)) { 4434 spin_lock_irq(shost->host_lock); 4435 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4436 spin_unlock_irq(shost->host_lock); 4437 } 4438 } 4439 4440 void 4441 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4442 { 4443 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4444 4445 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4446 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4447 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4448 spin_lock_irq(shost->host_lock); 4449 list_del_init(&ndlp->nlp_listp); 4450 spin_unlock_irq(shost->host_lock); 4451 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4452 NLP_STE_UNUSED_NODE); 4453 } 4454 4455 static void 4456 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4457 { 4458 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4459 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4460 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4461 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4462 NLP_STE_UNUSED_NODE); 4463 } 4464 /** 4465 * lpfc_initialize_node - Initialize all fields of node object 4466 * @vport: Pointer to Virtual Port object. 4467 * @ndlp: Pointer to FC node object. 4468 * @did: FC_ID of the node. 4469 * 4470 * This function is always called when node object need to be initialized. 4471 * It initializes all the fields of the node object. Although the reference 4472 * to phba from @ndlp can be obtained indirectly through it's reference to 4473 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4474 * to the life-span of the @ndlp might go beyond the existence of @vport as 4475 * the final release of ndlp is determined by its reference count. And, the 4476 * operation on @ndlp needs the reference to phba. 4477 **/ 4478 static inline void 4479 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4480 uint32_t did) 4481 { 4482 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4483 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4484 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4485 ndlp->nlp_DID = did; 4486 ndlp->vport = vport; 4487 ndlp->phba = vport->phba; 4488 ndlp->nlp_sid = NLP_NO_SID; 4489 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4490 kref_init(&ndlp->kref); 4491 NLP_INT_NODE_ACT(ndlp); 4492 atomic_set(&ndlp->cmd_pending, 0); 4493 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4494 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4495 } 4496 4497 struct lpfc_nodelist * 4498 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4499 int state) 4500 { 4501 struct lpfc_hba *phba = vport->phba; 4502 uint32_t did, flag; 4503 unsigned long flags; 4504 unsigned long *active_rrqs_xri_bitmap = NULL; 4505 int rpi = LPFC_RPI_ALLOC_ERROR; 4506 uint32_t defer_did = 0; 4507 4508 if (!ndlp) 4509 return NULL; 4510 4511 if (phba->sli_rev == LPFC_SLI_REV4) { 4512 if (ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR) 4513 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4514 else 4515 rpi = ndlp->nlp_rpi; 4516 4517 if (rpi == LPFC_RPI_ALLOC_ERROR) { 4518 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4519 "0359 %s: ndlp:x%px " 4520 "usgmap:x%x refcnt:%d FAILED RPI " 4521 " ALLOC\n", 4522 __func__, 4523 (void *)ndlp, ndlp->nlp_usg_map, 4524 kref_read(&ndlp->kref)); 4525 return NULL; 4526 } 4527 } 4528 4529 spin_lock_irqsave(&phba->ndlp_lock, flags); 4530 /* The ndlp should not be in memory free mode */ 4531 if (NLP_CHK_FREE_REQ(ndlp)) { 4532 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4533 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4534 "0277 %s: ndlp:x%px " 4535 "usgmap:x%x refcnt:%d\n", 4536 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4537 kref_read(&ndlp->kref)); 4538 goto free_rpi; 4539 } 4540 /* The ndlp should not already be in active mode */ 4541 if (NLP_CHK_NODE_ACT(ndlp)) { 4542 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4543 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4544 "0278 %s: ndlp:x%px " 4545 "usgmap:x%x refcnt:%d\n", 4546 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4547 kref_read(&ndlp->kref)); 4548 goto free_rpi; 4549 } 4550 4551 /* First preserve the orginal DID, xri_bitmap and some flags */ 4552 did = ndlp->nlp_DID; 4553 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4554 if (flag & NLP_UNREG_INP) 4555 defer_did = ndlp->nlp_defer_did; 4556 if (phba->sli_rev == LPFC_SLI_REV4) 4557 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4558 4559 /* Zero ndlp except of ndlp linked list pointer */ 4560 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4561 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4562 4563 /* Next reinitialize and restore saved objects */ 4564 lpfc_initialize_node(vport, ndlp, did); 4565 ndlp->nlp_flag |= flag; 4566 if (flag & NLP_UNREG_INP) 4567 ndlp->nlp_defer_did = defer_did; 4568 if (phba->sli_rev == LPFC_SLI_REV4) 4569 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4570 4571 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4572 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4573 ndlp->nlp_rpi = rpi; 4574 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4575 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4576 "map:%x x%px\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4577 ndlp->nlp_flag, 4578 kref_read(&ndlp->kref), 4579 ndlp->nlp_usg_map, ndlp); 4580 } 4581 4582 4583 if (state != NLP_STE_UNUSED_NODE) 4584 lpfc_nlp_set_state(vport, ndlp, state); 4585 else 4586 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4587 "0013 rpi:%x DID:%x flg:%x refcnt:%d " 4588 "map:%x x%px STATE=UNUSED\n", 4589 ndlp->nlp_rpi, ndlp->nlp_DID, 4590 ndlp->nlp_flag, 4591 kref_read(&ndlp->kref), 4592 ndlp->nlp_usg_map, ndlp); 4593 4594 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4595 "node enable: did:x%x", 4596 ndlp->nlp_DID, 0, 0); 4597 return ndlp; 4598 4599 free_rpi: 4600 if (phba->sli_rev == LPFC_SLI_REV4) { 4601 lpfc_sli4_free_rpi(vport->phba, rpi); 4602 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4603 } 4604 return NULL; 4605 } 4606 4607 void 4608 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4609 { 4610 /* 4611 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4612 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4613 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4614 * until ALL other outstanding threads have completed. We check 4615 * that the ndlp not already in the UNUSED state before we proceed. 4616 */ 4617 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4618 return; 4619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4620 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4621 lpfc_cleanup_vports_rrqs(vport, ndlp); 4622 lpfc_unreg_rpi(vport, ndlp); 4623 } 4624 4625 lpfc_nlp_put(ndlp); 4626 return; 4627 } 4628 4629 /* 4630 * Start / ReStart rescue timer for Discovery / RSCN handling 4631 */ 4632 void 4633 lpfc_set_disctmo(struct lpfc_vport *vport) 4634 { 4635 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4636 struct lpfc_hba *phba = vport->phba; 4637 uint32_t tmo; 4638 4639 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4640 /* For FAN, timeout should be greater than edtov */ 4641 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4642 } else { 4643 /* Normal discovery timeout should be > than ELS/CT timeout 4644 * FC spec states we need 3 * ratov for CT requests 4645 */ 4646 tmo = ((phba->fc_ratov * 3) + 3); 4647 } 4648 4649 4650 if (!timer_pending(&vport->fc_disctmo)) { 4651 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4652 "set disc timer: tmo:x%x state:x%x flg:x%x", 4653 tmo, vport->port_state, vport->fc_flag); 4654 } 4655 4656 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4657 spin_lock_irq(shost->host_lock); 4658 vport->fc_flag |= FC_DISC_TMO; 4659 spin_unlock_irq(shost->host_lock); 4660 4661 /* Start Discovery Timer state <hba_state> */ 4662 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4663 "0247 Start Discovery Timer state x%x " 4664 "Data: x%x x%lx x%x x%x\n", 4665 vport->port_state, tmo, 4666 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4667 vport->fc_adisc_cnt); 4668 4669 return; 4670 } 4671 4672 /* 4673 * Cancel rescue timer for Discovery / RSCN handling 4674 */ 4675 int 4676 lpfc_can_disctmo(struct lpfc_vport *vport) 4677 { 4678 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4679 unsigned long iflags; 4680 4681 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4682 "can disc timer: state:x%x rtry:x%x flg:x%x", 4683 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4684 4685 /* Turn off discovery timer if its running */ 4686 if (vport->fc_flag & FC_DISC_TMO) { 4687 spin_lock_irqsave(shost->host_lock, iflags); 4688 vport->fc_flag &= ~FC_DISC_TMO; 4689 spin_unlock_irqrestore(shost->host_lock, iflags); 4690 del_timer_sync(&vport->fc_disctmo); 4691 spin_lock_irqsave(&vport->work_port_lock, iflags); 4692 vport->work_port_events &= ~WORKER_DISC_TMO; 4693 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4694 } 4695 4696 /* Cancel Discovery Timer state <hba_state> */ 4697 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4698 "0248 Cancel Discovery Timer state x%x " 4699 "Data: x%x x%x x%x\n", 4700 vport->port_state, vport->fc_flag, 4701 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4702 return 0; 4703 } 4704 4705 /* 4706 * Check specified ring for outstanding IOCB on the SLI queue 4707 * Return true if iocb matches the specified nport 4708 */ 4709 int 4710 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4711 struct lpfc_sli_ring *pring, 4712 struct lpfc_iocbq *iocb, 4713 struct lpfc_nodelist *ndlp) 4714 { 4715 IOCB_t *icmd = &iocb->iocb; 4716 struct lpfc_vport *vport = ndlp->vport; 4717 4718 if (iocb->vport != vport) 4719 return 0; 4720 4721 if (pring->ringno == LPFC_ELS_RING) { 4722 switch (icmd->ulpCommand) { 4723 case CMD_GEN_REQUEST64_CR: 4724 if (iocb->context_un.ndlp == ndlp) 4725 return 1; 4726 /* fall through */ 4727 case CMD_ELS_REQUEST64_CR: 4728 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4729 return 1; 4730 /* fall through */ 4731 case CMD_XMIT_ELS_RSP64_CX: 4732 if (iocb->context1 == (uint8_t *) ndlp) 4733 return 1; 4734 /* fall through */ 4735 } 4736 } else if (pring->ringno == LPFC_FCP_RING) { 4737 /* Skip match check if waiting to relogin to FCP target */ 4738 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4739 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4740 return 0; 4741 } 4742 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4743 return 1; 4744 } 4745 } 4746 return 0; 4747 } 4748 4749 static void 4750 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4751 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4752 struct list_head *dequeue_list) 4753 { 4754 struct lpfc_iocbq *iocb, *next_iocb; 4755 4756 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4757 /* Check to see if iocb matches the nport */ 4758 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4759 /* match, dequeue */ 4760 list_move_tail(&iocb->list, dequeue_list); 4761 } 4762 } 4763 4764 static void 4765 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4766 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4767 { 4768 struct lpfc_sli *psli = &phba->sli; 4769 uint32_t i; 4770 4771 spin_lock_irq(&phba->hbalock); 4772 for (i = 0; i < psli->num_rings; i++) 4773 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4774 dequeue_list); 4775 spin_unlock_irq(&phba->hbalock); 4776 } 4777 4778 static void 4779 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4780 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4781 { 4782 struct lpfc_sli_ring *pring; 4783 struct lpfc_queue *qp = NULL; 4784 4785 spin_lock_irq(&phba->hbalock); 4786 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4787 pring = qp->pring; 4788 if (!pring) 4789 continue; 4790 spin_lock(&pring->ring_lock); 4791 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4792 spin_unlock(&pring->ring_lock); 4793 } 4794 spin_unlock_irq(&phba->hbalock); 4795 } 4796 4797 /* 4798 * Free resources / clean up outstanding I/Os 4799 * associated with nlp_rpi in the LPFC_NODELIST entry. 4800 */ 4801 static int 4802 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4803 { 4804 LIST_HEAD(completions); 4805 4806 lpfc_fabric_abort_nport(ndlp); 4807 4808 /* 4809 * Everything that matches on txcmplq will be returned 4810 * by firmware with a no rpi error. 4811 */ 4812 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4813 if (phba->sli_rev != LPFC_SLI_REV4) 4814 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4815 else 4816 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4817 } 4818 4819 /* Cancel all the IOCBs from the completions list */ 4820 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4821 IOERR_SLI_ABORTED); 4822 4823 return 0; 4824 } 4825 4826 /** 4827 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4828 * @phba: Pointer to HBA context object. 4829 * @pmb: Pointer to mailbox object. 4830 * 4831 * This function will issue an ELS LOGO command after completing 4832 * the UNREG_RPI. 4833 **/ 4834 static void 4835 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4836 { 4837 struct lpfc_vport *vport = pmb->vport; 4838 struct lpfc_nodelist *ndlp; 4839 4840 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4841 if (!ndlp) 4842 return; 4843 lpfc_issue_els_logo(vport, ndlp, 0); 4844 mempool_free(pmb, phba->mbox_mem_pool); 4845 4846 /* Check to see if there are any deferred events to process */ 4847 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4848 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4849 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4850 "1434 UNREG cmpl deferred logo x%x " 4851 "on NPort x%x Data: x%x x%px\n", 4852 ndlp->nlp_rpi, ndlp->nlp_DID, 4853 ndlp->nlp_defer_did, ndlp); 4854 4855 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4856 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4857 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4858 } else { 4859 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 4860 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 4861 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 4862 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4863 } 4864 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4865 } 4866 } 4867 4868 /* 4869 * Sets the mailbox completion handler to be used for the 4870 * unreg_rpi command. The handler varies based on the state of 4871 * the port and what will be happening to the rpi next. 4872 */ 4873 static void 4874 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 4875 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 4876 { 4877 unsigned long iflags; 4878 4879 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4880 mbox->ctx_ndlp = ndlp; 4881 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4882 4883 } else if (phba->sli_rev == LPFC_SLI_REV4 && 4884 (!(vport->load_flag & FC_UNLOADING)) && 4885 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 4886 LPFC_SLI_INTF_IF_TYPE_2) && 4887 (kref_read(&ndlp->kref) > 0)) { 4888 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4889 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 4890 } else { 4891 if (vport->load_flag & FC_UNLOADING) { 4892 if (phba->sli_rev == LPFC_SLI_REV4) { 4893 spin_lock_irqsave(&vport->phba->ndlp_lock, 4894 iflags); 4895 ndlp->nlp_flag |= NLP_RELEASE_RPI; 4896 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 4897 iflags); 4898 } 4899 lpfc_nlp_get(ndlp); 4900 } 4901 mbox->ctx_ndlp = ndlp; 4902 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4903 } 4904 } 4905 4906 /* 4907 * Free rpi associated with LPFC_NODELIST entry. 4908 * This routine is called from lpfc_freenode(), when we are removing 4909 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4910 * LOGO that completes successfully, and we are waiting to PLOGI back 4911 * to the remote NPort. In addition, it is called after we receive 4912 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4913 * we are waiting to PLOGI back to the remote NPort. 4914 */ 4915 int 4916 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4917 { 4918 struct lpfc_hba *phba = vport->phba; 4919 LPFC_MBOXQ_t *mbox; 4920 int rc, acc_plogi = 1; 4921 uint16_t rpi; 4922 4923 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4924 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4925 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4926 lpfc_printf_vlog(vport, KERN_INFO, 4927 LOG_NODE | LOG_DISCOVERY, 4928 "3366 RPI x%x needs to be " 4929 "unregistered nlp_flag x%x " 4930 "did x%x\n", 4931 ndlp->nlp_rpi, ndlp->nlp_flag, 4932 ndlp->nlp_DID); 4933 4934 /* If there is already an UNREG in progress for this ndlp, 4935 * no need to queue up another one. 4936 */ 4937 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4938 lpfc_printf_vlog(vport, KERN_INFO, 4939 LOG_NODE | LOG_DISCOVERY, 4940 "1436 unreg_rpi SKIP UNREG x%x on " 4941 "NPort x%x deferred x%x flg x%x " 4942 "Data: x%px\n", 4943 ndlp->nlp_rpi, ndlp->nlp_DID, 4944 ndlp->nlp_defer_did, 4945 ndlp->nlp_flag, ndlp); 4946 goto out; 4947 } 4948 4949 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4950 if (mbox) { 4951 /* SLI4 ports require the physical rpi value. */ 4952 rpi = ndlp->nlp_rpi; 4953 if (phba->sli_rev == LPFC_SLI_REV4) 4954 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4955 4956 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4957 mbox->vport = vport; 4958 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 4959 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 4960 /* 4961 * accept PLOGIs after unreg_rpi_cmpl 4962 */ 4963 acc_plogi = 0; 4964 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 4965 Fabric_DID_MASK) && 4966 (!(vport->fc_flag & FC_OFFLINE_MODE))) 4967 ndlp->nlp_flag |= NLP_UNREG_INP; 4968 4969 lpfc_printf_vlog(vport, KERN_INFO, 4970 LOG_NODE | LOG_DISCOVERY, 4971 "1433 unreg_rpi UNREG x%x on " 4972 "NPort x%x deferred flg x%x " 4973 "Data:x%px\n", 4974 ndlp->nlp_rpi, ndlp->nlp_DID, 4975 ndlp->nlp_flag, ndlp); 4976 4977 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4978 if (rc == MBX_NOT_FINISHED) { 4979 mempool_free(mbox, phba->mbox_mem_pool); 4980 acc_plogi = 1; 4981 } 4982 } 4983 lpfc_no_rpi(phba, ndlp); 4984 out: 4985 if (phba->sli_rev != LPFC_SLI_REV4) 4986 ndlp->nlp_rpi = 0; 4987 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4988 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4989 if (acc_plogi) 4990 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4991 return 1; 4992 } 4993 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4994 return 0; 4995 } 4996 4997 /** 4998 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4999 * @phba: pointer to lpfc hba data structure. 5000 * 5001 * This routine is invoked to unregister all the currently registered RPIs 5002 * to the HBA. 5003 **/ 5004 void 5005 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 5006 { 5007 struct lpfc_vport **vports; 5008 struct lpfc_nodelist *ndlp; 5009 struct Scsi_Host *shost; 5010 int i; 5011 5012 vports = lpfc_create_vport_work_array(phba); 5013 if (!vports) { 5014 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 5015 "2884 Vport array allocation failed \n"); 5016 return; 5017 } 5018 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5019 shost = lpfc_shost_from_vport(vports[i]); 5020 spin_lock_irq(shost->host_lock); 5021 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5022 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5023 /* The mempool_alloc might sleep */ 5024 spin_unlock_irq(shost->host_lock); 5025 lpfc_unreg_rpi(vports[i], ndlp); 5026 spin_lock_irq(shost->host_lock); 5027 } 5028 } 5029 spin_unlock_irq(shost->host_lock); 5030 } 5031 lpfc_destroy_vport_work_array(phba, vports); 5032 } 5033 5034 void 5035 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5036 { 5037 struct lpfc_hba *phba = vport->phba; 5038 LPFC_MBOXQ_t *mbox; 5039 int rc; 5040 5041 if (phba->sli_rev == LPFC_SLI_REV4) { 5042 lpfc_sli4_unreg_all_rpis(vport); 5043 return; 5044 } 5045 5046 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5047 if (mbox) { 5048 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5049 mbox); 5050 mbox->vport = vport; 5051 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5052 mbox->ctx_ndlp = NULL; 5053 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5054 if (rc != MBX_TIMEOUT) 5055 mempool_free(mbox, phba->mbox_mem_pool); 5056 5057 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5058 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5059 "1836 Could not issue " 5060 "unreg_login(all_rpis) status %d\n", rc); 5061 } 5062 } 5063 5064 void 5065 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5066 { 5067 struct lpfc_hba *phba = vport->phba; 5068 LPFC_MBOXQ_t *mbox; 5069 int rc; 5070 5071 /* Unreg DID is an SLI3 operation. */ 5072 if (phba->sli_rev > LPFC_SLI_REV3) 5073 return; 5074 5075 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5076 if (mbox) { 5077 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5078 mbox); 5079 mbox->vport = vport; 5080 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5081 mbox->ctx_ndlp = NULL; 5082 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5083 if (rc != MBX_TIMEOUT) 5084 mempool_free(mbox, phba->mbox_mem_pool); 5085 5086 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5087 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5088 "1815 Could not issue " 5089 "unreg_did (default rpis) status %d\n", 5090 rc); 5091 } 5092 } 5093 5094 /* 5095 * Free resources associated with LPFC_NODELIST entry 5096 * so it can be freed. 5097 */ 5098 static int 5099 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5100 { 5101 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5102 struct lpfc_hba *phba = vport->phba; 5103 LPFC_MBOXQ_t *mb, *nextmb; 5104 struct lpfc_dmabuf *mp; 5105 unsigned long iflags; 5106 5107 /* Cleanup node for NPort <nlp_DID> */ 5108 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5109 "0900 Cleanup node for NPort x%x " 5110 "Data: x%x x%x x%x\n", 5111 ndlp->nlp_DID, ndlp->nlp_flag, 5112 ndlp->nlp_state, ndlp->nlp_rpi); 5113 if (NLP_CHK_FREE_REQ(ndlp)) { 5114 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5115 "0280 %s: ndlp:x%px " 5116 "usgmap:x%x refcnt:%d\n", 5117 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5118 kref_read(&ndlp->kref)); 5119 lpfc_dequeue_node(vport, ndlp); 5120 } else { 5121 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5122 "0281 %s: ndlp:x%px " 5123 "usgmap:x%x refcnt:%d\n", 5124 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5125 kref_read(&ndlp->kref)); 5126 lpfc_disable_node(vport, ndlp); 5127 } 5128 5129 5130 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5131 5132 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5133 if ((mb = phba->sli.mbox_active)) { 5134 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5135 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5136 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5137 mb->ctx_ndlp = NULL; 5138 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5139 } 5140 } 5141 5142 spin_lock_irq(&phba->hbalock); 5143 /* Cleanup REG_LOGIN completions which are not yet processed */ 5144 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5145 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5146 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5147 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5148 continue; 5149 5150 mb->ctx_ndlp = NULL; 5151 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5152 } 5153 5154 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5155 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5156 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5157 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5158 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5159 if (mp) { 5160 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5161 kfree(mp); 5162 } 5163 list_del(&mb->list); 5164 mempool_free(mb, phba->mbox_mem_pool); 5165 /* We shall not invoke the lpfc_nlp_put to decrement 5166 * the ndlp reference count as we are in the process 5167 * of lpfc_nlp_release. 5168 */ 5169 } 5170 } 5171 spin_unlock_irq(&phba->hbalock); 5172 5173 lpfc_els_abort(phba, ndlp); 5174 5175 spin_lock_irq(shost->host_lock); 5176 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5177 spin_unlock_irq(shost->host_lock); 5178 5179 ndlp->nlp_last_elscmd = 0; 5180 del_timer_sync(&ndlp->nlp_delayfunc); 5181 5182 list_del_init(&ndlp->els_retry_evt.evt_listp); 5183 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5184 lpfc_cleanup_vports_rrqs(vport, ndlp); 5185 if (phba->sli_rev == LPFC_SLI_REV4) 5186 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5187 if (!lpfc_unreg_rpi(vport, ndlp)) { 5188 /* Clean up unregistered and non freed rpis */ 5189 if ((ndlp->nlp_flag & NLP_RELEASE_RPI) && 5190 !(ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)) { 5191 lpfc_sli4_free_rpi(vport->phba, 5192 ndlp->nlp_rpi); 5193 spin_lock_irqsave(&vport->phba->ndlp_lock, 5194 iflags); 5195 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5196 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5197 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 5198 iflags); 5199 } 5200 } 5201 return 0; 5202 } 5203 5204 /* 5205 * Check to see if we can free the nlp back to the freelist. 5206 * If we are in the middle of using the nlp in the discovery state 5207 * machine, defer the free till we reach the end of the state machine. 5208 */ 5209 static void 5210 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5211 { 5212 struct lpfc_hba *phba = vport->phba; 5213 struct lpfc_rport_data *rdata; 5214 struct fc_rport *rport; 5215 LPFC_MBOXQ_t *mbox; 5216 int rc; 5217 5218 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5219 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5220 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5221 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5222 phba->sli_rev != LPFC_SLI_REV4) { 5223 /* For this case we need to cleanup the default rpi 5224 * allocated by the firmware. 5225 */ 5226 lpfc_printf_vlog(vport, KERN_INFO, 5227 LOG_NODE | LOG_DISCOVERY, 5228 "0005 Cleanup Default rpi:x%x DID:x%x flg:x%x " 5229 "ref %d map:x%x ndlp x%px\n", 5230 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5231 kref_read(&ndlp->kref), 5232 ndlp->nlp_usg_map, ndlp); 5233 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5234 != NULL) { 5235 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5236 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5237 if (rc) { 5238 mempool_free(mbox, phba->mbox_mem_pool); 5239 } 5240 else { 5241 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5242 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5243 mbox->vport = vport; 5244 mbox->ctx_ndlp = ndlp; 5245 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5246 if (rc == MBX_NOT_FINISHED) { 5247 mempool_free(mbox, phba->mbox_mem_pool); 5248 } 5249 } 5250 } 5251 } 5252 lpfc_cleanup_node(vport, ndlp); 5253 5254 /* 5255 * ndlp->rport must be set to NULL before it reaches here 5256 * i.e. break rport/node link before doing lpfc_nlp_put for 5257 * registered rport and then drop the reference of rport. 5258 */ 5259 if (ndlp->rport) { 5260 /* 5261 * extra lpfc_nlp_put dropped the reference of ndlp 5262 * for registered rport so need to cleanup rport 5263 */ 5264 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5265 "0940 removed node x%px DID x%x " 5266 "rpi %d rport not null x%px\n", 5267 ndlp, ndlp->nlp_DID, ndlp->nlp_rpi, 5268 ndlp->rport); 5269 rport = ndlp->rport; 5270 rdata = rport->dd_data; 5271 rdata->pnode = NULL; 5272 ndlp->rport = NULL; 5273 put_device(&rport->dev); 5274 } 5275 } 5276 5277 static int 5278 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5279 uint32_t did) 5280 { 5281 D_ID mydid, ndlpdid, matchdid; 5282 5283 if (did == Bcast_DID) 5284 return 0; 5285 5286 /* First check for Direct match */ 5287 if (ndlp->nlp_DID == did) 5288 return 1; 5289 5290 /* Next check for area/domain identically equals 0 match */ 5291 mydid.un.word = vport->fc_myDID; 5292 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5293 return 0; 5294 } 5295 5296 matchdid.un.word = did; 5297 ndlpdid.un.word = ndlp->nlp_DID; 5298 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5299 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5300 (mydid.un.b.area == matchdid.un.b.area)) { 5301 /* This code is supposed to match the ID 5302 * for a private loop device that is 5303 * connect to fl_port. But we need to 5304 * check that the port did not just go 5305 * from pt2pt to fabric or we could end 5306 * up matching ndlp->nlp_DID 000001 to 5307 * fabric DID 0x20101 5308 */ 5309 if ((ndlpdid.un.b.domain == 0) && 5310 (ndlpdid.un.b.area == 0)) { 5311 if (ndlpdid.un.b.id && 5312 vport->phba->fc_topology == 5313 LPFC_TOPOLOGY_LOOP) 5314 return 1; 5315 } 5316 return 0; 5317 } 5318 5319 matchdid.un.word = ndlp->nlp_DID; 5320 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5321 (mydid.un.b.area == ndlpdid.un.b.area)) { 5322 if ((matchdid.un.b.domain == 0) && 5323 (matchdid.un.b.area == 0)) { 5324 if (matchdid.un.b.id) 5325 return 1; 5326 } 5327 } 5328 } 5329 return 0; 5330 } 5331 5332 /* Search for a nodelist entry */ 5333 static struct lpfc_nodelist * 5334 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5335 { 5336 struct lpfc_nodelist *ndlp; 5337 uint32_t data1; 5338 5339 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5340 if (lpfc_matchdid(vport, ndlp, did)) { 5341 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5342 ((uint32_t)ndlp->nlp_xri << 16) | 5343 ((uint32_t)ndlp->nlp_type << 8) | 5344 ((uint32_t)ndlp->nlp_usg_map & 0xff)); 5345 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5346 "0929 FIND node DID " 5347 "Data: x%px x%x x%x x%x x%x x%px\n", 5348 ndlp, ndlp->nlp_DID, 5349 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5350 ndlp->active_rrqs_xri_bitmap); 5351 return ndlp; 5352 } 5353 } 5354 5355 /* FIND node did <did> NOT FOUND */ 5356 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5357 "0932 FIND node did x%x NOT FOUND.\n", did); 5358 return NULL; 5359 } 5360 5361 struct lpfc_nodelist * 5362 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5363 { 5364 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5365 struct lpfc_nodelist *ndlp; 5366 unsigned long iflags; 5367 5368 spin_lock_irqsave(shost->host_lock, iflags); 5369 ndlp = __lpfc_findnode_did(vport, did); 5370 spin_unlock_irqrestore(shost->host_lock, iflags); 5371 return ndlp; 5372 } 5373 5374 struct lpfc_nodelist * 5375 lpfc_findnode_mapped(struct lpfc_vport *vport) 5376 { 5377 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5378 struct lpfc_nodelist *ndlp; 5379 uint32_t data1; 5380 unsigned long iflags; 5381 5382 spin_lock_irqsave(shost->host_lock, iflags); 5383 5384 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5385 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5386 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5387 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5388 ((uint32_t)ndlp->nlp_xri << 16) | 5389 ((uint32_t)ndlp->nlp_type << 8) | 5390 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5391 spin_unlock_irqrestore(shost->host_lock, iflags); 5392 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5393 "2025 FIND node DID " 5394 "Data: x%px x%x x%x x%x x%px\n", 5395 ndlp, ndlp->nlp_DID, 5396 ndlp->nlp_flag, data1, 5397 ndlp->active_rrqs_xri_bitmap); 5398 return ndlp; 5399 } 5400 } 5401 spin_unlock_irqrestore(shost->host_lock, iflags); 5402 5403 /* FIND node did <did> NOT FOUND */ 5404 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5405 "2026 FIND mapped did NOT FOUND.\n"); 5406 return NULL; 5407 } 5408 5409 struct lpfc_nodelist * 5410 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5411 { 5412 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5413 struct lpfc_nodelist *ndlp; 5414 5415 ndlp = lpfc_findnode_did(vport, did); 5416 if (!ndlp) { 5417 if (vport->phba->nvmet_support) 5418 return NULL; 5419 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5420 lpfc_rscn_payload_check(vport, did) == 0) 5421 return NULL; 5422 ndlp = lpfc_nlp_init(vport, did); 5423 if (!ndlp) 5424 return NULL; 5425 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5426 5427 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5428 "6453 Setup New Node 2B_DISC x%x " 5429 "Data:x%x x%x x%x\n", 5430 ndlp->nlp_DID, ndlp->nlp_flag, 5431 ndlp->nlp_state, vport->fc_flag); 5432 5433 spin_lock_irq(shost->host_lock); 5434 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5435 spin_unlock_irq(shost->host_lock); 5436 return ndlp; 5437 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5438 if (vport->phba->nvmet_support) 5439 return NULL; 5440 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5441 if (!ndlp) { 5442 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 5443 "0014 Could not enable ndlp\n"); 5444 return NULL; 5445 } 5446 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5447 "6454 Setup Enabled Node 2B_DISC x%x " 5448 "Data:x%x x%x x%x\n", 5449 ndlp->nlp_DID, ndlp->nlp_flag, 5450 ndlp->nlp_state, vport->fc_flag); 5451 5452 spin_lock_irq(shost->host_lock); 5453 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5454 spin_unlock_irq(shost->host_lock); 5455 return ndlp; 5456 } 5457 5458 /* The NVME Target does not want to actively manage an rport. 5459 * The goal is to allow the target to reset its state and clear 5460 * pending IO in preparation for the initiator to recover. 5461 */ 5462 if ((vport->fc_flag & FC_RSCN_MODE) && 5463 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5464 if (lpfc_rscn_payload_check(vport, did)) { 5465 5466 /* Since this node is marked for discovery, 5467 * delay timeout is not needed. 5468 */ 5469 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5470 5471 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5472 "6455 Setup RSCN Node 2B_DISC x%x " 5473 "Data:x%x x%x x%x\n", 5474 ndlp->nlp_DID, ndlp->nlp_flag, 5475 ndlp->nlp_state, vport->fc_flag); 5476 5477 /* NVME Target mode waits until rport is known to be 5478 * impacted by the RSCN before it transitions. No 5479 * active management - just go to NPR provided the 5480 * node had a valid login. 5481 */ 5482 if (vport->phba->nvmet_support) 5483 return ndlp; 5484 5485 /* If we've already received a PLOGI from this NPort 5486 * we don't need to try to discover it again. 5487 */ 5488 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5489 !(ndlp->nlp_type & 5490 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5491 return NULL; 5492 5493 ndlp->nlp_prev_state = ndlp->nlp_state; 5494 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5495 5496 spin_lock_irq(shost->host_lock); 5497 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5498 spin_unlock_irq(shost->host_lock); 5499 } else { 5500 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5501 "6456 Skip Setup RSCN Node x%x " 5502 "Data:x%x x%x x%x\n", 5503 ndlp->nlp_DID, ndlp->nlp_flag, 5504 ndlp->nlp_state, vport->fc_flag); 5505 ndlp = NULL; 5506 } 5507 } else { 5508 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5509 "6457 Setup Active Node 2B_DISC x%x " 5510 "Data:x%x x%x x%x\n", 5511 ndlp->nlp_DID, ndlp->nlp_flag, 5512 ndlp->nlp_state, vport->fc_flag); 5513 5514 /* If the initiator received a PLOGI from this NPort or if the 5515 * initiator is already in the process of discovery on it, 5516 * there's no need to try to discover it again. 5517 */ 5518 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5519 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5520 (!vport->phba->nvmet_support && 5521 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5522 return NULL; 5523 5524 if (vport->phba->nvmet_support) 5525 return ndlp; 5526 5527 /* Moving to NPR state clears unsolicited flags and 5528 * allows for rediscovery 5529 */ 5530 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5531 5532 spin_lock_irq(shost->host_lock); 5533 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5534 spin_unlock_irq(shost->host_lock); 5535 } 5536 return ndlp; 5537 } 5538 5539 /* Build a list of nodes to discover based on the loopmap */ 5540 void 5541 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5542 { 5543 struct lpfc_hba *phba = vport->phba; 5544 int j; 5545 uint32_t alpa, index; 5546 5547 if (!lpfc_is_link_up(phba)) 5548 return; 5549 5550 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5551 return; 5552 5553 /* Check for loop map present or not */ 5554 if (phba->alpa_map[0]) { 5555 for (j = 1; j <= phba->alpa_map[0]; j++) { 5556 alpa = phba->alpa_map[j]; 5557 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5558 continue; 5559 lpfc_setup_disc_node(vport, alpa); 5560 } 5561 } else { 5562 /* No alpamap, so try all alpa's */ 5563 for (j = 0; j < FC_MAXLOOP; j++) { 5564 /* If cfg_scan_down is set, start from highest 5565 * ALPA (0xef) to lowest (0x1). 5566 */ 5567 if (vport->cfg_scan_down) 5568 index = j; 5569 else 5570 index = FC_MAXLOOP - j - 1; 5571 alpa = lpfcAlpaArray[index]; 5572 if ((vport->fc_myDID & 0xff) == alpa) 5573 continue; 5574 lpfc_setup_disc_node(vport, alpa); 5575 } 5576 } 5577 return; 5578 } 5579 5580 /* SLI3 only */ 5581 void 5582 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5583 { 5584 LPFC_MBOXQ_t *mbox; 5585 struct lpfc_sli *psli = &phba->sli; 5586 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5587 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5588 int rc; 5589 5590 /* 5591 * if it's not a physical port or if we already send 5592 * clear_la then don't send it. 5593 */ 5594 if ((phba->link_state >= LPFC_CLEAR_LA) || 5595 (vport->port_type != LPFC_PHYSICAL_PORT) || 5596 (phba->sli_rev == LPFC_SLI_REV4)) 5597 return; 5598 5599 /* Link up discovery */ 5600 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5601 phba->link_state = LPFC_CLEAR_LA; 5602 lpfc_clear_la(phba, mbox); 5603 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5604 mbox->vport = vport; 5605 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5606 if (rc == MBX_NOT_FINISHED) { 5607 mempool_free(mbox, phba->mbox_mem_pool); 5608 lpfc_disc_flush_list(vport); 5609 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5610 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5611 phba->link_state = LPFC_HBA_ERROR; 5612 } 5613 } 5614 } 5615 5616 /* Reg_vpi to tell firmware to resume normal operations */ 5617 void 5618 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5619 { 5620 LPFC_MBOXQ_t *regvpimbox; 5621 5622 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5623 if (regvpimbox) { 5624 lpfc_reg_vpi(vport, regvpimbox); 5625 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5626 regvpimbox->vport = vport; 5627 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5628 == MBX_NOT_FINISHED) { 5629 mempool_free(regvpimbox, phba->mbox_mem_pool); 5630 } 5631 } 5632 } 5633 5634 /* Start Link up / RSCN discovery on NPR nodes */ 5635 void 5636 lpfc_disc_start(struct lpfc_vport *vport) 5637 { 5638 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5639 struct lpfc_hba *phba = vport->phba; 5640 uint32_t num_sent; 5641 uint32_t clear_la_pending; 5642 5643 if (!lpfc_is_link_up(phba)) { 5644 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5645 "3315 Link is not up %x\n", 5646 phba->link_state); 5647 return; 5648 } 5649 5650 if (phba->link_state == LPFC_CLEAR_LA) 5651 clear_la_pending = 1; 5652 else 5653 clear_la_pending = 0; 5654 5655 if (vport->port_state < LPFC_VPORT_READY) 5656 vport->port_state = LPFC_DISC_AUTH; 5657 5658 lpfc_set_disctmo(vport); 5659 5660 vport->fc_prevDID = vport->fc_myDID; 5661 vport->num_disc_nodes = 0; 5662 5663 /* Start Discovery state <hba_state> */ 5664 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5665 "0202 Start Discovery port state x%x " 5666 "flg x%x Data: x%x x%x x%x\n", 5667 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5668 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5669 5670 /* First do ADISCs - if any */ 5671 num_sent = lpfc_els_disc_adisc(vport); 5672 5673 if (num_sent) 5674 return; 5675 5676 /* Register the VPI for SLI3, NPIV only. */ 5677 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5678 !(vport->fc_flag & FC_PT2PT) && 5679 !(vport->fc_flag & FC_RSCN_MODE) && 5680 (phba->sli_rev < LPFC_SLI_REV4)) { 5681 lpfc_issue_clear_la(phba, vport); 5682 lpfc_issue_reg_vpi(phba, vport); 5683 return; 5684 } 5685 5686 /* 5687 * For SLI2, we need to set port_state to READY and continue 5688 * discovery. 5689 */ 5690 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5691 /* If we get here, there is nothing to ADISC */ 5692 lpfc_issue_clear_la(phba, vport); 5693 5694 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5695 vport->num_disc_nodes = 0; 5696 /* go thru NPR nodes and issue ELS PLOGIs */ 5697 if (vport->fc_npr_cnt) 5698 lpfc_els_disc_plogi(vport); 5699 5700 if (!vport->num_disc_nodes) { 5701 spin_lock_irq(shost->host_lock); 5702 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5703 spin_unlock_irq(shost->host_lock); 5704 lpfc_can_disctmo(vport); 5705 } 5706 } 5707 vport->port_state = LPFC_VPORT_READY; 5708 } else { 5709 /* Next do PLOGIs - if any */ 5710 num_sent = lpfc_els_disc_plogi(vport); 5711 5712 if (num_sent) 5713 return; 5714 5715 if (vport->fc_flag & FC_RSCN_MODE) { 5716 /* Check to see if more RSCNs came in while we 5717 * were processing this one. 5718 */ 5719 if ((vport->fc_rscn_id_cnt == 0) && 5720 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5721 spin_lock_irq(shost->host_lock); 5722 vport->fc_flag &= ~FC_RSCN_MODE; 5723 spin_unlock_irq(shost->host_lock); 5724 lpfc_can_disctmo(vport); 5725 } else 5726 lpfc_els_handle_rscn(vport); 5727 } 5728 } 5729 return; 5730 } 5731 5732 /* 5733 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5734 * ring the match the sppecified nodelist. 5735 */ 5736 static void 5737 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5738 { 5739 LIST_HEAD(completions); 5740 IOCB_t *icmd; 5741 struct lpfc_iocbq *iocb, *next_iocb; 5742 struct lpfc_sli_ring *pring; 5743 5744 pring = lpfc_phba_elsring(phba); 5745 if (unlikely(!pring)) 5746 return; 5747 5748 /* Error matching iocb on txq or txcmplq 5749 * First check the txq. 5750 */ 5751 spin_lock_irq(&phba->hbalock); 5752 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5753 if (iocb->context1 != ndlp) { 5754 continue; 5755 } 5756 icmd = &iocb->iocb; 5757 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5758 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5759 5760 list_move_tail(&iocb->list, &completions); 5761 } 5762 } 5763 5764 /* Next check the txcmplq */ 5765 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5766 if (iocb->context1 != ndlp) { 5767 continue; 5768 } 5769 icmd = &iocb->iocb; 5770 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5771 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5772 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5773 } 5774 } 5775 spin_unlock_irq(&phba->hbalock); 5776 5777 /* Cancel all the IOCBs from the completions list */ 5778 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5779 IOERR_SLI_ABORTED); 5780 } 5781 5782 static void 5783 lpfc_disc_flush_list(struct lpfc_vport *vport) 5784 { 5785 struct lpfc_nodelist *ndlp, *next_ndlp; 5786 struct lpfc_hba *phba = vport->phba; 5787 5788 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5789 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5790 nlp_listp) { 5791 if (!NLP_CHK_NODE_ACT(ndlp)) 5792 continue; 5793 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5794 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5795 lpfc_free_tx(phba, ndlp); 5796 } 5797 } 5798 } 5799 } 5800 5801 void 5802 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5803 { 5804 lpfc_els_flush_rscn(vport); 5805 lpfc_els_flush_cmd(vport); 5806 lpfc_disc_flush_list(vport); 5807 } 5808 5809 /*****************************************************************************/ 5810 /* 5811 * NAME: lpfc_disc_timeout 5812 * 5813 * FUNCTION: Fibre Channel driver discovery timeout routine. 5814 * 5815 * EXECUTION ENVIRONMENT: interrupt only 5816 * 5817 * CALLED FROM: 5818 * Timer function 5819 * 5820 * RETURNS: 5821 * none 5822 */ 5823 /*****************************************************************************/ 5824 void 5825 lpfc_disc_timeout(struct timer_list *t) 5826 { 5827 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5828 struct lpfc_hba *phba = vport->phba; 5829 uint32_t tmo_posted; 5830 unsigned long flags = 0; 5831 5832 if (unlikely(!phba)) 5833 return; 5834 5835 spin_lock_irqsave(&vport->work_port_lock, flags); 5836 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5837 if (!tmo_posted) 5838 vport->work_port_events |= WORKER_DISC_TMO; 5839 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5840 5841 if (!tmo_posted) 5842 lpfc_worker_wake_up(phba); 5843 return; 5844 } 5845 5846 static void 5847 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5848 { 5849 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5850 struct lpfc_hba *phba = vport->phba; 5851 struct lpfc_sli *psli = &phba->sli; 5852 struct lpfc_nodelist *ndlp, *next_ndlp; 5853 LPFC_MBOXQ_t *initlinkmbox; 5854 int rc, clrlaerr = 0; 5855 5856 if (!(vport->fc_flag & FC_DISC_TMO)) 5857 return; 5858 5859 spin_lock_irq(shost->host_lock); 5860 vport->fc_flag &= ~FC_DISC_TMO; 5861 spin_unlock_irq(shost->host_lock); 5862 5863 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5864 "disc timeout: state:x%x rtry:x%x flg:x%x", 5865 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5866 5867 switch (vport->port_state) { 5868 5869 case LPFC_LOCAL_CFG_LINK: 5870 /* 5871 * port_state is identically LPFC_LOCAL_CFG_LINK while 5872 * waiting for FAN timeout 5873 */ 5874 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5875 "0221 FAN timeout\n"); 5876 5877 /* Start discovery by sending FLOGI, clean up old rpis */ 5878 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5879 nlp_listp) { 5880 if (!NLP_CHK_NODE_ACT(ndlp)) 5881 continue; 5882 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5883 continue; 5884 if (ndlp->nlp_type & NLP_FABRIC) { 5885 /* Clean up the ndlp on Fabric connections */ 5886 lpfc_drop_node(vport, ndlp); 5887 5888 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5889 /* Fail outstanding IO now since device 5890 * is marked for PLOGI. 5891 */ 5892 lpfc_unreg_rpi(vport, ndlp); 5893 } 5894 } 5895 if (vport->port_state != LPFC_FLOGI) { 5896 if (phba->sli_rev <= LPFC_SLI_REV3) 5897 lpfc_initial_flogi(vport); 5898 else 5899 lpfc_issue_init_vfi(vport); 5900 return; 5901 } 5902 break; 5903 5904 case LPFC_FDISC: 5905 case LPFC_FLOGI: 5906 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5907 /* Initial FLOGI timeout */ 5908 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5909 "0222 Initial %s timeout\n", 5910 vport->vpi ? "FDISC" : "FLOGI"); 5911 5912 /* Assume no Fabric and go on with discovery. 5913 * Check for outstanding ELS FLOGI to abort. 5914 */ 5915 5916 /* FLOGI failed, so just use loop map to make discovery list */ 5917 lpfc_disc_list_loopmap(vport); 5918 5919 /* Start discovery */ 5920 lpfc_disc_start(vport); 5921 break; 5922 5923 case LPFC_FABRIC_CFG_LINK: 5924 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5925 NameServer login */ 5926 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5927 "0223 Timeout while waiting for " 5928 "NameServer login\n"); 5929 /* Next look for NameServer ndlp */ 5930 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5931 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5932 lpfc_els_abort(phba, ndlp); 5933 5934 /* ReStart discovery */ 5935 goto restart_disc; 5936 5937 case LPFC_NS_QRY: 5938 /* Check for wait for NameServer Rsp timeout */ 5939 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5940 "0224 NameServer Query timeout " 5941 "Data: x%x x%x\n", 5942 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5943 5944 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5945 /* Try it one more time */ 5946 vport->fc_ns_retry++; 5947 vport->gidft_inp = 0; 5948 rc = lpfc_issue_gidft(vport); 5949 if (rc == 0) 5950 break; 5951 } 5952 vport->fc_ns_retry = 0; 5953 5954 restart_disc: 5955 /* 5956 * Discovery is over. 5957 * set port_state to PORT_READY if SLI2. 5958 * cmpl_reg_vpi will set port_state to READY for SLI3. 5959 */ 5960 if (phba->sli_rev < LPFC_SLI_REV4) { 5961 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5962 lpfc_issue_reg_vpi(phba, vport); 5963 else { 5964 lpfc_issue_clear_la(phba, vport); 5965 vport->port_state = LPFC_VPORT_READY; 5966 } 5967 } 5968 5969 /* Setup and issue mailbox INITIALIZE LINK command */ 5970 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5971 if (!initlinkmbox) { 5972 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5973 "0206 Device Discovery " 5974 "completion error\n"); 5975 phba->link_state = LPFC_HBA_ERROR; 5976 break; 5977 } 5978 5979 lpfc_linkdown(phba); 5980 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5981 phba->cfg_link_speed); 5982 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5983 initlinkmbox->vport = vport; 5984 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5985 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5986 lpfc_set_loopback_flag(phba); 5987 if (rc == MBX_NOT_FINISHED) 5988 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5989 5990 break; 5991 5992 case LPFC_DISC_AUTH: 5993 /* Node Authentication timeout */ 5994 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5995 "0227 Node Authentication timeout\n"); 5996 lpfc_disc_flush_list(vport); 5997 5998 /* 5999 * set port_state to PORT_READY if SLI2. 6000 * cmpl_reg_vpi will set port_state to READY for SLI3. 6001 */ 6002 if (phba->sli_rev < LPFC_SLI_REV4) { 6003 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 6004 lpfc_issue_reg_vpi(phba, vport); 6005 else { /* NPIV Not enabled */ 6006 lpfc_issue_clear_la(phba, vport); 6007 vport->port_state = LPFC_VPORT_READY; 6008 } 6009 } 6010 break; 6011 6012 case LPFC_VPORT_READY: 6013 if (vport->fc_flag & FC_RSCN_MODE) { 6014 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6015 "0231 RSCN timeout Data: x%x " 6016 "x%x\n", 6017 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 6018 6019 /* Cleanup any outstanding ELS commands */ 6020 lpfc_els_flush_cmd(vport); 6021 6022 lpfc_els_flush_rscn(vport); 6023 lpfc_disc_flush_list(vport); 6024 } 6025 break; 6026 6027 default: 6028 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6029 "0273 Unexpected discovery timeout, " 6030 "vport State x%x\n", vport->port_state); 6031 break; 6032 } 6033 6034 switch (phba->link_state) { 6035 case LPFC_CLEAR_LA: 6036 /* CLEAR LA timeout */ 6037 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6038 "0228 CLEAR LA timeout\n"); 6039 clrlaerr = 1; 6040 break; 6041 6042 case LPFC_LINK_UP: 6043 lpfc_issue_clear_la(phba, vport); 6044 /* fall through */ 6045 case LPFC_LINK_UNKNOWN: 6046 case LPFC_WARM_START: 6047 case LPFC_INIT_START: 6048 case LPFC_INIT_MBX_CMDS: 6049 case LPFC_LINK_DOWN: 6050 case LPFC_HBA_ERROR: 6051 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6052 "0230 Unexpected timeout, hba link " 6053 "state x%x\n", phba->link_state); 6054 clrlaerr = 1; 6055 break; 6056 6057 case LPFC_HBA_READY: 6058 break; 6059 } 6060 6061 if (clrlaerr) { 6062 lpfc_disc_flush_list(vport); 6063 if (phba->sli_rev != LPFC_SLI_REV4) { 6064 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6065 ~LPFC_STOP_IOCB_EVENT; 6066 psli->sli3_ring[LPFC_FCP_RING].flag &= 6067 ~LPFC_STOP_IOCB_EVENT; 6068 } 6069 vport->port_state = LPFC_VPORT_READY; 6070 } 6071 return; 6072 } 6073 6074 /* 6075 * This routine handles processing a NameServer REG_LOGIN mailbox 6076 * command upon completion. It is setup in the LPFC_MBOXQ 6077 * as the completion routine when the command is 6078 * handed off to the SLI layer. 6079 */ 6080 void 6081 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6082 { 6083 MAILBOX_t *mb = &pmb->u.mb; 6084 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 6085 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6086 struct lpfc_vport *vport = pmb->vport; 6087 6088 pmb->ctx_buf = NULL; 6089 pmb->ctx_ndlp = NULL; 6090 6091 if (phba->sli_rev < LPFC_SLI_REV4) 6092 ndlp->nlp_rpi = mb->un.varWords[0]; 6093 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6094 ndlp->nlp_type |= NLP_FABRIC; 6095 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6096 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6097 "0004 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 6098 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6099 kref_read(&ndlp->kref), 6100 ndlp->nlp_usg_map, ndlp); 6101 /* 6102 * Start issuing Fabric-Device Management Interface (FDMI) command to 6103 * 0xfffffa (FDMI well known port). 6104 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6105 * DPRT -> RPRT (vports) 6106 */ 6107 if (vport->port_type == LPFC_PHYSICAL_PORT) 6108 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6109 else 6110 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6111 6112 6113 /* decrement the node reference count held for this callback 6114 * function. 6115 */ 6116 lpfc_nlp_put(ndlp); 6117 lpfc_mbuf_free(phba, mp->virt, mp->phys); 6118 kfree(mp); 6119 mempool_free(pmb, phba->mbox_mem_pool); 6120 6121 return; 6122 } 6123 6124 static int 6125 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6126 { 6127 uint16_t *rpi = param; 6128 6129 /* check for active node */ 6130 if (!NLP_CHK_NODE_ACT(ndlp)) 6131 return 0; 6132 6133 return ndlp->nlp_rpi == *rpi; 6134 } 6135 6136 static int 6137 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6138 { 6139 return memcmp(&ndlp->nlp_portname, param, 6140 sizeof(ndlp->nlp_portname)) == 0; 6141 } 6142 6143 static struct lpfc_nodelist * 6144 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6145 { 6146 struct lpfc_nodelist *ndlp; 6147 6148 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6149 if (filter(ndlp, param)) { 6150 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6151 "3185 FIND node filter %ps DID " 6152 "ndlp x%px did x%x flg x%x st x%x " 6153 "xri x%x type x%x rpi x%x\n", 6154 filter, ndlp, ndlp->nlp_DID, 6155 ndlp->nlp_flag, ndlp->nlp_state, 6156 ndlp->nlp_xri, ndlp->nlp_type, 6157 ndlp->nlp_rpi); 6158 return ndlp; 6159 } 6160 } 6161 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6162 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6163 return NULL; 6164 } 6165 6166 /* 6167 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6168 * returns the node list element pointer else return NULL. 6169 */ 6170 struct lpfc_nodelist * 6171 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6172 { 6173 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6174 } 6175 6176 /* 6177 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6178 * returns the node element list pointer else return NULL. 6179 */ 6180 struct lpfc_nodelist * 6181 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6182 { 6183 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6184 struct lpfc_nodelist *ndlp; 6185 6186 spin_lock_irq(shost->host_lock); 6187 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6188 spin_unlock_irq(shost->host_lock); 6189 return ndlp; 6190 } 6191 6192 /* 6193 * This routine looks up the ndlp lists for the given RPI. If the rpi 6194 * is found, the routine returns the node element list pointer else 6195 * return NULL. 6196 */ 6197 struct lpfc_nodelist * 6198 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6199 { 6200 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6201 struct lpfc_nodelist *ndlp; 6202 unsigned long flags; 6203 6204 spin_lock_irqsave(shost->host_lock, flags); 6205 ndlp = __lpfc_findnode_rpi(vport, rpi); 6206 spin_unlock_irqrestore(shost->host_lock, flags); 6207 return ndlp; 6208 } 6209 6210 /** 6211 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6212 * @phba: pointer to lpfc hba data structure. 6213 * @vpi: the physical host virtual N_Port identifier. 6214 * 6215 * This routine finds a vport on a HBA (referred by @phba) through a 6216 * @vpi. The function walks the HBA's vport list and returns the address 6217 * of the vport with the matching @vpi. 6218 * 6219 * Return code 6220 * NULL - No vport with the matching @vpi found 6221 * Otherwise - Address to the vport with the matching @vpi. 6222 **/ 6223 struct lpfc_vport * 6224 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6225 { 6226 struct lpfc_vport *vport; 6227 unsigned long flags; 6228 int i = 0; 6229 6230 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6231 if (vpi > 0) { 6232 /* 6233 * Translate the physical vpi to the logical vpi. The 6234 * vport stores the logical vpi. 6235 */ 6236 for (i = 0; i < phba->max_vpi; i++) { 6237 if (vpi == phba->vpi_ids[i]) 6238 break; 6239 } 6240 6241 if (i >= phba->max_vpi) { 6242 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 6243 "2936 Could not find Vport mapped " 6244 "to vpi %d\n", vpi); 6245 return NULL; 6246 } 6247 } 6248 6249 spin_lock_irqsave(&phba->port_list_lock, flags); 6250 list_for_each_entry(vport, &phba->port_list, listentry) { 6251 if (vport->vpi == i) { 6252 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6253 return vport; 6254 } 6255 } 6256 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6257 return NULL; 6258 } 6259 6260 struct lpfc_nodelist * 6261 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6262 { 6263 struct lpfc_nodelist *ndlp; 6264 int rpi = LPFC_RPI_ALLOC_ERROR; 6265 6266 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6267 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6268 if (rpi == LPFC_RPI_ALLOC_ERROR) 6269 return NULL; 6270 } 6271 6272 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6273 if (!ndlp) { 6274 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6275 lpfc_sli4_free_rpi(vport->phba, rpi); 6276 return NULL; 6277 } 6278 6279 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6280 6281 lpfc_initialize_node(vport, ndlp, did); 6282 INIT_LIST_HEAD(&ndlp->nlp_listp); 6283 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6284 ndlp->nlp_rpi = rpi; 6285 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6286 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6287 "flg:x%x refcnt:%d map:x%x\n", 6288 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6289 ndlp->nlp_flag, kref_read(&ndlp->kref), 6290 ndlp->nlp_usg_map); 6291 6292 ndlp->active_rrqs_xri_bitmap = 6293 mempool_alloc(vport->phba->active_rrq_pool, 6294 GFP_KERNEL); 6295 if (ndlp->active_rrqs_xri_bitmap) 6296 memset(ndlp->active_rrqs_xri_bitmap, 0, 6297 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6298 } 6299 6300 6301 6302 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6303 "node init: did:x%x", 6304 ndlp->nlp_DID, 0, 0); 6305 6306 return ndlp; 6307 } 6308 6309 /* This routine releases all resources associated with a specifc NPort's ndlp 6310 * and mempool_free's the nodelist. 6311 */ 6312 static void 6313 lpfc_nlp_release(struct kref *kref) 6314 { 6315 struct lpfc_hba *phba; 6316 unsigned long flags; 6317 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6318 kref); 6319 6320 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6321 "node release: did:x%x flg:x%x type:x%x", 6322 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6323 6324 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6325 "0279 %s: ndlp:x%px did %x " 6326 "usgmap:x%x refcnt:%d rpi:%x\n", 6327 __func__, 6328 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6329 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6330 6331 /* remove ndlp from action. */ 6332 lpfc_nlp_remove(ndlp->vport, ndlp); 6333 6334 /* clear the ndlp active flag for all release cases */ 6335 phba = ndlp->phba; 6336 spin_lock_irqsave(&phba->ndlp_lock, flags); 6337 NLP_CLR_NODE_ACT(ndlp); 6338 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6339 6340 /* free ndlp memory for final ndlp release */ 6341 if (NLP_CHK_FREE_REQ(ndlp)) { 6342 kfree(ndlp->lat_data); 6343 if (phba->sli_rev == LPFC_SLI_REV4) 6344 mempool_free(ndlp->active_rrqs_xri_bitmap, 6345 ndlp->phba->active_rrq_pool); 6346 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6347 } 6348 } 6349 6350 /* This routine bumps the reference count for a ndlp structure to ensure 6351 * that one discovery thread won't free a ndlp while another discovery thread 6352 * is using it. 6353 */ 6354 struct lpfc_nodelist * 6355 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6356 { 6357 struct lpfc_hba *phba; 6358 unsigned long flags; 6359 6360 if (ndlp) { 6361 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6362 "node get: did:x%x flg:x%x refcnt:x%x", 6363 ndlp->nlp_DID, ndlp->nlp_flag, 6364 kref_read(&ndlp->kref)); 6365 /* The check of ndlp usage to prevent incrementing the 6366 * ndlp reference count that is in the process of being 6367 * released. 6368 */ 6369 phba = ndlp->phba; 6370 spin_lock_irqsave(&phba->ndlp_lock, flags); 6371 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6372 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6373 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6374 "0276 %s: ndlp:x%px " 6375 "usgmap:x%x refcnt:%d\n", 6376 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6377 kref_read(&ndlp->kref)); 6378 return NULL; 6379 } else 6380 kref_get(&ndlp->kref); 6381 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6382 } 6383 return ndlp; 6384 } 6385 6386 /* This routine decrements the reference count for a ndlp structure. If the 6387 * count goes to 0, this indicates the the associated nodelist should be 6388 * freed. Returning 1 indicates the ndlp resource has been released; on the 6389 * other hand, returning 0 indicates the ndlp resource has not been released 6390 * yet. 6391 */ 6392 int 6393 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6394 { 6395 struct lpfc_hba *phba; 6396 unsigned long flags; 6397 6398 if (!ndlp) 6399 return 1; 6400 6401 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6402 "node put: did:x%x flg:x%x refcnt:x%x", 6403 ndlp->nlp_DID, ndlp->nlp_flag, 6404 kref_read(&ndlp->kref)); 6405 phba = ndlp->phba; 6406 spin_lock_irqsave(&phba->ndlp_lock, flags); 6407 /* Check the ndlp memory free acknowledge flag to avoid the 6408 * possible race condition that kref_put got invoked again 6409 * after previous one has done ndlp memory free. 6410 */ 6411 if (NLP_CHK_FREE_ACK(ndlp)) { 6412 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6413 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6414 "0274 %s: ndlp:x%px " 6415 "usgmap:x%x refcnt:%d\n", 6416 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6417 kref_read(&ndlp->kref)); 6418 return 1; 6419 } 6420 /* Check the ndlp inactivate log flag to avoid the possible 6421 * race condition that kref_put got invoked again after ndlp 6422 * is already in inactivating state. 6423 */ 6424 if (NLP_CHK_IACT_REQ(ndlp)) { 6425 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6426 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6427 "0275 %s: ndlp:x%px " 6428 "usgmap:x%x refcnt:%d\n", 6429 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6430 kref_read(&ndlp->kref)); 6431 return 1; 6432 } 6433 /* For last put, mark the ndlp usage flags to make sure no 6434 * other kref_get and kref_put on the same ndlp shall get 6435 * in between the process when the final kref_put has been 6436 * invoked on this ndlp. 6437 */ 6438 if (kref_read(&ndlp->kref) == 1) { 6439 /* Indicate ndlp is put to inactive state. */ 6440 NLP_SET_IACT_REQ(ndlp); 6441 /* Acknowledge ndlp memory free has been seen. */ 6442 if (NLP_CHK_FREE_REQ(ndlp)) 6443 NLP_SET_FREE_ACK(ndlp); 6444 } 6445 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6446 /* Note, the kref_put returns 1 when decrementing a reference 6447 * count that was 1, it invokes the release callback function, 6448 * but it still left the reference count as 1 (not actually 6449 * performs the last decrementation). Otherwise, it actually 6450 * decrements the reference count and returns 0. 6451 */ 6452 return kref_put(&ndlp->kref, lpfc_nlp_release); 6453 } 6454 6455 /* This routine free's the specified nodelist if it is not in use 6456 * by any other discovery thread. This routine returns 1 if the 6457 * ndlp has been freed. A return value of 0 indicates the ndlp is 6458 * not yet been released. 6459 */ 6460 int 6461 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6462 { 6463 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6464 "node not used: did:x%x flg:x%x refcnt:x%x", 6465 ndlp->nlp_DID, ndlp->nlp_flag, 6466 kref_read(&ndlp->kref)); 6467 if (kref_read(&ndlp->kref) == 1) 6468 if (lpfc_nlp_put(ndlp)) 6469 return 1; 6470 return 0; 6471 } 6472 6473 /** 6474 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6475 * @phba: Pointer to hba context object. 6476 * 6477 * This function iterate through all FC nodes associated 6478 * will all vports to check if there is any node with 6479 * fc_rports associated with it. If there is an fc_rport 6480 * associated with the node, then the node is either in 6481 * discovered state or its devloss_timer is pending. 6482 */ 6483 static int 6484 lpfc_fcf_inuse(struct lpfc_hba *phba) 6485 { 6486 struct lpfc_vport **vports; 6487 int i, ret = 0; 6488 struct lpfc_nodelist *ndlp; 6489 struct Scsi_Host *shost; 6490 6491 vports = lpfc_create_vport_work_array(phba); 6492 6493 /* If driver cannot allocate memory, indicate fcf is in use */ 6494 if (!vports) 6495 return 1; 6496 6497 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6498 shost = lpfc_shost_from_vport(vports[i]); 6499 spin_lock_irq(shost->host_lock); 6500 /* 6501 * IF the CVL_RCVD bit is not set then we have sent the 6502 * flogi. 6503 * If dev_loss fires while we are waiting we do not want to 6504 * unreg the fcf. 6505 */ 6506 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6507 spin_unlock_irq(shost->host_lock); 6508 ret = 1; 6509 goto out; 6510 } 6511 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6512 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6513 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6514 ret = 1; 6515 spin_unlock_irq(shost->host_lock); 6516 goto out; 6517 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6518 ret = 1; 6519 lpfc_printf_log(phba, KERN_INFO, 6520 LOG_NODE | LOG_DISCOVERY, 6521 "2624 RPI %x DID %x flag %x " 6522 "still logged in\n", 6523 ndlp->nlp_rpi, ndlp->nlp_DID, 6524 ndlp->nlp_flag); 6525 } 6526 } 6527 spin_unlock_irq(shost->host_lock); 6528 } 6529 out: 6530 lpfc_destroy_vport_work_array(phba, vports); 6531 return ret; 6532 } 6533 6534 /** 6535 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6536 * @phba: Pointer to hba context object. 6537 * @mboxq: Pointer to mailbox object. 6538 * 6539 * This function frees memory associated with the mailbox command. 6540 */ 6541 void 6542 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6543 { 6544 struct lpfc_vport *vport = mboxq->vport; 6545 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6546 6547 if (mboxq->u.mb.mbxStatus) { 6548 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6549 "2555 UNREG_VFI mbxStatus error x%x " 6550 "HBA state x%x\n", 6551 mboxq->u.mb.mbxStatus, vport->port_state); 6552 } 6553 spin_lock_irq(shost->host_lock); 6554 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6555 spin_unlock_irq(shost->host_lock); 6556 mempool_free(mboxq, phba->mbox_mem_pool); 6557 return; 6558 } 6559 6560 /** 6561 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6562 * @phba: Pointer to hba context object. 6563 * @mboxq: Pointer to mailbox object. 6564 * 6565 * This function frees memory associated with the mailbox command. 6566 */ 6567 static void 6568 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6569 { 6570 struct lpfc_vport *vport = mboxq->vport; 6571 6572 if (mboxq->u.mb.mbxStatus) { 6573 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6574 "2550 UNREG_FCFI mbxStatus error x%x " 6575 "HBA state x%x\n", 6576 mboxq->u.mb.mbxStatus, vport->port_state); 6577 } 6578 mempool_free(mboxq, phba->mbox_mem_pool); 6579 return; 6580 } 6581 6582 /** 6583 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6584 * @phba: Pointer to hba context object. 6585 * 6586 * This function prepare the HBA for unregistering the currently registered 6587 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6588 * VFIs. 6589 */ 6590 int 6591 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6592 { 6593 struct lpfc_vport **vports; 6594 struct lpfc_nodelist *ndlp; 6595 struct Scsi_Host *shost; 6596 int i = 0, rc; 6597 6598 /* Unregister RPIs */ 6599 if (lpfc_fcf_inuse(phba)) 6600 lpfc_unreg_hba_rpis(phba); 6601 6602 /* At this point, all discovery is aborted */ 6603 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6604 6605 /* Unregister VPIs */ 6606 vports = lpfc_create_vport_work_array(phba); 6607 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6608 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6609 /* Stop FLOGI/FDISC retries */ 6610 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6611 if (ndlp) 6612 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6613 lpfc_cleanup_pending_mbox(vports[i]); 6614 if (phba->sli_rev == LPFC_SLI_REV4) 6615 lpfc_sli4_unreg_all_rpis(vports[i]); 6616 lpfc_mbx_unreg_vpi(vports[i]); 6617 shost = lpfc_shost_from_vport(vports[i]); 6618 spin_lock_irq(shost->host_lock); 6619 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6620 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6621 spin_unlock_irq(shost->host_lock); 6622 } 6623 lpfc_destroy_vport_work_array(phba, vports); 6624 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6625 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6626 if (ndlp) 6627 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6628 lpfc_cleanup_pending_mbox(phba->pport); 6629 if (phba->sli_rev == LPFC_SLI_REV4) 6630 lpfc_sli4_unreg_all_rpis(phba->pport); 6631 lpfc_mbx_unreg_vpi(phba->pport); 6632 shost = lpfc_shost_from_vport(phba->pport); 6633 spin_lock_irq(shost->host_lock); 6634 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6635 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6636 spin_unlock_irq(shost->host_lock); 6637 } 6638 6639 /* Cleanup any outstanding ELS commands */ 6640 lpfc_els_flush_all_cmd(phba); 6641 6642 /* Unregister the physical port VFI */ 6643 rc = lpfc_issue_unreg_vfi(phba->pport); 6644 return rc; 6645 } 6646 6647 /** 6648 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6649 * @phba: Pointer to hba context object. 6650 * 6651 * This function issues synchronous unregister FCF mailbox command to HBA to 6652 * unregister the currently registered FCF record. The driver does not reset 6653 * the driver FCF usage state flags. 6654 * 6655 * Return 0 if successfully issued, none-zero otherwise. 6656 */ 6657 int 6658 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6659 { 6660 LPFC_MBOXQ_t *mbox; 6661 int rc; 6662 6663 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6664 if (!mbox) { 6665 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6666 "2551 UNREG_FCFI mbox allocation failed" 6667 "HBA state x%x\n", phba->pport->port_state); 6668 return -ENOMEM; 6669 } 6670 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6671 mbox->vport = phba->pport; 6672 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6673 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6674 6675 if (rc == MBX_NOT_FINISHED) { 6676 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6677 "2552 Unregister FCFI command failed rc x%x " 6678 "HBA state x%x\n", 6679 rc, phba->pport->port_state); 6680 return -EINVAL; 6681 } 6682 return 0; 6683 } 6684 6685 /** 6686 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6687 * @phba: Pointer to hba context object. 6688 * 6689 * This function unregisters the currently reigstered FCF. This function 6690 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6691 */ 6692 void 6693 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6694 { 6695 int rc; 6696 6697 /* Preparation for unregistering fcf */ 6698 rc = lpfc_unregister_fcf_prep(phba); 6699 if (rc) { 6700 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6701 "2748 Failed to prepare for unregistering " 6702 "HBA's FCF record: rc=%d\n", rc); 6703 return; 6704 } 6705 6706 /* Now, unregister FCF record and reset HBA FCF state */ 6707 rc = lpfc_sli4_unregister_fcf(phba); 6708 if (rc) 6709 return; 6710 /* Reset HBA FCF states after successful unregister FCF */ 6711 phba->fcf.fcf_flag = 0; 6712 phba->fcf.current_rec.flag = 0; 6713 6714 /* 6715 * If driver is not unloading, check if there is any other 6716 * FCF record that can be used for discovery. 6717 */ 6718 if ((phba->pport->load_flag & FC_UNLOADING) || 6719 (phba->link_state < LPFC_LINK_UP)) 6720 return; 6721 6722 /* This is considered as the initial FCF discovery scan */ 6723 spin_lock_irq(&phba->hbalock); 6724 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6725 spin_unlock_irq(&phba->hbalock); 6726 6727 /* Reset FCF roundrobin bmask for new discovery */ 6728 lpfc_sli4_clear_fcf_rr_bmask(phba); 6729 6730 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6731 6732 if (rc) { 6733 spin_lock_irq(&phba->hbalock); 6734 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6735 spin_unlock_irq(&phba->hbalock); 6736 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6737 "2553 lpfc_unregister_unused_fcf failed " 6738 "to read FCF record HBA state x%x\n", 6739 phba->pport->port_state); 6740 } 6741 } 6742 6743 /** 6744 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6745 * @phba: Pointer to hba context object. 6746 * 6747 * This function just unregisters the currently reigstered FCF. It does not 6748 * try to find another FCF for discovery. 6749 */ 6750 void 6751 lpfc_unregister_fcf(struct lpfc_hba *phba) 6752 { 6753 int rc; 6754 6755 /* Preparation for unregistering fcf */ 6756 rc = lpfc_unregister_fcf_prep(phba); 6757 if (rc) { 6758 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6759 "2749 Failed to prepare for unregistering " 6760 "HBA's FCF record: rc=%d\n", rc); 6761 return; 6762 } 6763 6764 /* Now, unregister FCF record and reset HBA FCF state */ 6765 rc = lpfc_sli4_unregister_fcf(phba); 6766 if (rc) 6767 return; 6768 /* Set proper HBA FCF states after successful unregister FCF */ 6769 spin_lock_irq(&phba->hbalock); 6770 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6771 spin_unlock_irq(&phba->hbalock); 6772 } 6773 6774 /** 6775 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6776 * @phba: Pointer to hba context object. 6777 * 6778 * This function check if there are any connected remote port for the FCF and 6779 * if all the devices are disconnected, this function unregister FCFI. 6780 * This function also tries to use another FCF for discovery. 6781 */ 6782 void 6783 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6784 { 6785 /* 6786 * If HBA is not running in FIP mode, if HBA does not support 6787 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6788 * registered, do nothing. 6789 */ 6790 spin_lock_irq(&phba->hbalock); 6791 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6792 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6793 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6794 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6795 (phba->pport->port_state == LPFC_FLOGI)) { 6796 spin_unlock_irq(&phba->hbalock); 6797 return; 6798 } 6799 spin_unlock_irq(&phba->hbalock); 6800 6801 if (lpfc_fcf_inuse(phba)) 6802 return; 6803 6804 lpfc_unregister_fcf_rescan(phba); 6805 } 6806 6807 /** 6808 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6809 * @phba: Pointer to hba context object. 6810 * @buff: Buffer containing the FCF connection table as in the config 6811 * region. 6812 * This function create driver data structure for the FCF connection 6813 * record table read from config region 23. 6814 */ 6815 static void 6816 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6817 uint8_t *buff) 6818 { 6819 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6820 struct lpfc_fcf_conn_hdr *conn_hdr; 6821 struct lpfc_fcf_conn_rec *conn_rec; 6822 uint32_t record_count; 6823 int i; 6824 6825 /* Free the current connect table */ 6826 list_for_each_entry_safe(conn_entry, next_conn_entry, 6827 &phba->fcf_conn_rec_list, list) { 6828 list_del_init(&conn_entry->list); 6829 kfree(conn_entry); 6830 } 6831 6832 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6833 record_count = conn_hdr->length * sizeof(uint32_t)/ 6834 sizeof(struct lpfc_fcf_conn_rec); 6835 6836 conn_rec = (struct lpfc_fcf_conn_rec *) 6837 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6838 6839 for (i = 0; i < record_count; i++) { 6840 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6841 continue; 6842 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6843 GFP_KERNEL); 6844 if (!conn_entry) { 6845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6846 "2566 Failed to allocate connection" 6847 " table entry\n"); 6848 return; 6849 } 6850 6851 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6852 sizeof(struct lpfc_fcf_conn_rec)); 6853 list_add_tail(&conn_entry->list, 6854 &phba->fcf_conn_rec_list); 6855 } 6856 6857 if (!list_empty(&phba->fcf_conn_rec_list)) { 6858 i = 0; 6859 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6860 list) { 6861 conn_rec = &conn_entry->conn_rec; 6862 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6863 "3345 FCF connection list rec[%02d]: " 6864 "flags:x%04x, vtag:x%04x, " 6865 "fabric_name:x%02x:%02x:%02x:%02x:" 6866 "%02x:%02x:%02x:%02x, " 6867 "switch_name:x%02x:%02x:%02x:%02x:" 6868 "%02x:%02x:%02x:%02x\n", i++, 6869 conn_rec->flags, conn_rec->vlan_tag, 6870 conn_rec->fabric_name[0], 6871 conn_rec->fabric_name[1], 6872 conn_rec->fabric_name[2], 6873 conn_rec->fabric_name[3], 6874 conn_rec->fabric_name[4], 6875 conn_rec->fabric_name[5], 6876 conn_rec->fabric_name[6], 6877 conn_rec->fabric_name[7], 6878 conn_rec->switch_name[0], 6879 conn_rec->switch_name[1], 6880 conn_rec->switch_name[2], 6881 conn_rec->switch_name[3], 6882 conn_rec->switch_name[4], 6883 conn_rec->switch_name[5], 6884 conn_rec->switch_name[6], 6885 conn_rec->switch_name[7]); 6886 } 6887 } 6888 } 6889 6890 /** 6891 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6892 * @phba: Pointer to hba context object. 6893 * @buff: Buffer containing the FCoE parameter data structure. 6894 * 6895 * This function update driver data structure with config 6896 * parameters read from config region 23. 6897 */ 6898 static void 6899 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6900 uint8_t *buff) 6901 { 6902 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6903 struct lpfc_fcoe_params *fcoe_param; 6904 6905 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6906 buff; 6907 fcoe_param = (struct lpfc_fcoe_params *) 6908 (buff + sizeof(struct lpfc_fip_param_hdr)); 6909 6910 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6911 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6912 return; 6913 6914 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6915 phba->valid_vlan = 1; 6916 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6917 0xFFF; 6918 } 6919 6920 phba->fc_map[0] = fcoe_param->fc_map[0]; 6921 phba->fc_map[1] = fcoe_param->fc_map[1]; 6922 phba->fc_map[2] = fcoe_param->fc_map[2]; 6923 return; 6924 } 6925 6926 /** 6927 * lpfc_get_rec_conf23 - Get a record type in config region data. 6928 * @buff: Buffer containing config region 23 data. 6929 * @size: Size of the data buffer. 6930 * @rec_type: Record type to be searched. 6931 * 6932 * This function searches config region data to find the beginning 6933 * of the record specified by record_type. If record found, this 6934 * function return pointer to the record else return NULL. 6935 */ 6936 static uint8_t * 6937 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6938 { 6939 uint32_t offset = 0, rec_length; 6940 6941 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6942 (size < sizeof(uint32_t))) 6943 return NULL; 6944 6945 rec_length = buff[offset + 1]; 6946 6947 /* 6948 * One TLV record has one word header and number of data words 6949 * specified in the rec_length field of the record header. 6950 */ 6951 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6952 <= size) { 6953 if (buff[offset] == rec_type) 6954 return &buff[offset]; 6955 6956 if (buff[offset] == LPFC_REGION23_LAST_REC) 6957 return NULL; 6958 6959 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6960 rec_length = buff[offset + 1]; 6961 } 6962 return NULL; 6963 } 6964 6965 /** 6966 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6967 * @phba: Pointer to lpfc_hba data structure. 6968 * @buff: Buffer containing config region 23 data. 6969 * @size: Size of the data buffer. 6970 * 6971 * This function parses the FCoE config parameters in config region 23 and 6972 * populate driver data structure with the parameters. 6973 */ 6974 void 6975 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6976 uint8_t *buff, 6977 uint32_t size) 6978 { 6979 uint32_t offset = 0; 6980 uint8_t *rec_ptr; 6981 6982 /* 6983 * If data size is less than 2 words signature and version cannot be 6984 * verified. 6985 */ 6986 if (size < 2*sizeof(uint32_t)) 6987 return; 6988 6989 /* Check the region signature first */ 6990 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6992 "2567 Config region 23 has bad signature\n"); 6993 return; 6994 } 6995 6996 offset += 4; 6997 6998 /* Check the data structure version */ 6999 if (buff[offset] != LPFC_REGION23_VERSION) { 7000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7001 "2568 Config region 23 has bad version\n"); 7002 return; 7003 } 7004 offset += 4; 7005 7006 /* Read FCoE param record */ 7007 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7008 size - offset, FCOE_PARAM_TYPE); 7009 if (rec_ptr) 7010 lpfc_read_fcoe_param(phba, rec_ptr); 7011 7012 /* Read FCF connection table */ 7013 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 7014 size - offset, FCOE_CONN_TBL_TYPE); 7015 if (rec_ptr) 7016 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 7017 7018 } 7019