1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 #include <scsi/fc/fc_fs.h> 37 38 #include <linux/nvme-fc-driver.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_crtn.h" 51 #include "lpfc_vport.h" 52 #include "lpfc_debugfs.h" 53 54 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 55 static uint8_t lpfcAlpaArray[] = { 56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 69 }; 70 71 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 72 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 74 static int lpfc_fcf_inuse(struct lpfc_hba *); 75 76 void 77 lpfc_terminate_rport_io(struct fc_rport *rport) 78 { 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105 } 106 107 /* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110 void 111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112 { 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 unsigned long iflags; 122 123 rdata = rport->dd_data; 124 ndlp = rdata->pnode; 125 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 126 return; 127 128 vport = ndlp->vport; 129 phba = vport->phba; 130 131 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 132 "rport devlosscb: sid:x%x did:x%x flg:x%x", 133 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 134 135 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 136 "3181 dev_loss_callbk x%06x, rport x%px flg x%x\n", 137 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 138 139 /* Don't defer this if we are in the process of deleting the vport 140 * or unloading the driver. The unload will cleanup the node 141 * appropriately we just need to cleanup the ndlp rport info here. 142 */ 143 if (vport->load_flag & FC_UNLOADING) { 144 put_node = rdata->pnode != NULL; 145 put_rport = ndlp->rport != NULL; 146 rdata->pnode = NULL; 147 ndlp->rport = NULL; 148 if (put_node) 149 lpfc_nlp_put(ndlp); 150 if (put_rport) 151 put_device(&rport->dev); 152 return; 153 } 154 155 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 156 return; 157 158 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 159 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 160 "6789 rport name %llx != node port name %llx", 161 rport->port_name, 162 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 163 164 evtp = &ndlp->dev_loss_evt; 165 166 if (!list_empty(&evtp->evt_listp)) { 167 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 168 "6790 rport name %llx dev_loss_evt pending", 169 rport->port_name); 170 return; 171 } 172 173 shost = lpfc_shost_from_vport(vport); 174 spin_lock_irqsave(shost->host_lock, iflags); 175 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 176 spin_unlock_irqrestore(shost->host_lock, iflags); 177 178 /* We need to hold the node by incrementing the reference 179 * count until this queued work is done 180 */ 181 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 182 183 spin_lock_irqsave(&phba->hbalock, iflags); 184 if (evtp->evt_arg1) { 185 evtp->evt = LPFC_EVT_DEV_LOSS; 186 list_add_tail(&evtp->evt_listp, &phba->work_list); 187 lpfc_worker_wake_up(phba); 188 } 189 spin_unlock_irqrestore(&phba->hbalock, iflags); 190 191 return; 192 } 193 194 /** 195 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 196 * @ndlp: Pointer to remote node object. 197 * 198 * This function is called from the worker thread when devloss timeout timer 199 * expires. For SLI4 host, this routine shall return 1 when at lease one 200 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 201 * routine shall return 0 when there is no remote node is still in use of FCF 202 * when devloss timeout happened to this @ndlp. 203 **/ 204 static int 205 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 206 { 207 struct lpfc_rport_data *rdata; 208 struct fc_rport *rport; 209 struct lpfc_vport *vport; 210 struct lpfc_hba *phba; 211 struct Scsi_Host *shost; 212 uint8_t *name; 213 int put_node; 214 int warn_on = 0; 215 int fcf_inuse = 0; 216 unsigned long iflags; 217 218 rport = ndlp->rport; 219 vport = ndlp->vport; 220 shost = lpfc_shost_from_vport(vport); 221 222 spin_lock_irqsave(shost->host_lock, iflags); 223 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 224 spin_unlock_irqrestore(shost->host_lock, iflags); 225 226 if (!rport) 227 return fcf_inuse; 228 229 name = (uint8_t *) &ndlp->nlp_portname; 230 phba = vport->phba; 231 232 if (phba->sli_rev == LPFC_SLI_REV4) 233 fcf_inuse = lpfc_fcf_inuse(phba); 234 235 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 236 "rport devlosstmo:did:x%x type:x%x id:x%x", 237 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 238 239 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 240 "3182 dev_loss_tmo_handler x%06x, rport x%px flg x%x\n", 241 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 242 243 /* 244 * lpfc_nlp_remove if reached with dangling rport drops the 245 * reference. To make sure that does not happen clear rport 246 * pointer in ndlp before lpfc_nlp_put. 247 */ 248 rdata = rport->dd_data; 249 250 /* Don't defer this if we are in the process of deleting the vport 251 * or unloading the driver. The unload will cleanup the node 252 * appropriately we just need to cleanup the ndlp rport info here. 253 */ 254 if (vport->load_flag & FC_UNLOADING) { 255 if (ndlp->nlp_sid != NLP_NO_SID) { 256 /* flush the target */ 257 lpfc_sli_abort_iocb(vport, 258 &phba->sli.sli3_ring[LPFC_FCP_RING], 259 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 260 } 261 put_node = rdata->pnode != NULL; 262 rdata->pnode = NULL; 263 ndlp->rport = NULL; 264 if (put_node) 265 lpfc_nlp_put(ndlp); 266 put_device(&rport->dev); 267 268 return fcf_inuse; 269 } 270 271 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 272 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 273 "0284 Devloss timeout Ignored on " 274 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 275 "NPort x%x\n", 276 *name, *(name+1), *(name+2), *(name+3), 277 *(name+4), *(name+5), *(name+6), *(name+7), 278 ndlp->nlp_DID); 279 return fcf_inuse; 280 } 281 282 put_node = rdata->pnode != NULL; 283 rdata->pnode = NULL; 284 ndlp->rport = NULL; 285 if (put_node) 286 lpfc_nlp_put(ndlp); 287 put_device(&rport->dev); 288 289 if (ndlp->nlp_type & NLP_FABRIC) 290 return fcf_inuse; 291 292 if (ndlp->nlp_sid != NLP_NO_SID) { 293 warn_on = 1; 294 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 295 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 296 } 297 298 if (warn_on) { 299 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 300 "0203 Devloss timeout on " 301 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 302 "NPort x%06x Data: x%x x%x x%x\n", 303 *name, *(name+1), *(name+2), *(name+3), 304 *(name+4), *(name+5), *(name+6), *(name+7), 305 ndlp->nlp_DID, ndlp->nlp_flag, 306 ndlp->nlp_state, ndlp->nlp_rpi); 307 } else { 308 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 309 "0204 Devloss timeout on " 310 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 311 "NPort x%06x Data: x%x x%x x%x\n", 312 *name, *(name+1), *(name+2), *(name+3), 313 *(name+4), *(name+5), *(name+6), *(name+7), 314 ndlp->nlp_DID, ndlp->nlp_flag, 315 ndlp->nlp_state, ndlp->nlp_rpi); 316 } 317 318 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 319 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 320 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 321 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 322 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 323 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 324 325 return fcf_inuse; 326 } 327 328 /** 329 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 330 * @phba: Pointer to hba context object. 331 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 332 * @nlp_did: remote node identifer with devloss timeout. 333 * 334 * This function is called from the worker thread after invoking devloss 335 * timeout handler and releasing the reference count for the ndlp with 336 * which the devloss timeout was handled for SLI4 host. For the devloss 337 * timeout of the last remote node which had been in use of FCF, when this 338 * routine is invoked, it shall be guaranteed that none of the remote are 339 * in-use of FCF. When devloss timeout to the last remote using the FCF, 340 * if the FIP engine is neither in FCF table scan process nor roundrobin 341 * failover process, the in-use FCF shall be unregistered. If the FIP 342 * engine is in FCF discovery process, the devloss timeout state shall 343 * be set for either the FCF table scan process or roundrobin failover 344 * process to unregister the in-use FCF. 345 **/ 346 static void 347 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 348 uint32_t nlp_did) 349 { 350 /* If devloss timeout happened to a remote node when FCF had no 351 * longer been in-use, do nothing. 352 */ 353 if (!fcf_inuse) 354 return; 355 356 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 357 spin_lock_irq(&phba->hbalock); 358 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 359 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 360 spin_unlock_irq(&phba->hbalock); 361 return; 362 } 363 phba->hba_flag |= HBA_DEVLOSS_TMO; 364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 365 "2847 Last remote node (x%x) using " 366 "FCF devloss tmo\n", nlp_did); 367 } 368 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 369 spin_unlock_irq(&phba->hbalock); 370 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 371 "2868 Devloss tmo to FCF rediscovery " 372 "in progress\n"); 373 return; 374 } 375 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 376 spin_unlock_irq(&phba->hbalock); 377 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 378 "2869 Devloss tmo to idle FIP engine, " 379 "unreg in-use FCF and rescan.\n"); 380 /* Unregister in-use FCF and rescan */ 381 lpfc_unregister_fcf_rescan(phba); 382 return; 383 } 384 spin_unlock_irq(&phba->hbalock); 385 if (phba->hba_flag & FCF_TS_INPROG) 386 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 387 "2870 FCF table scan in progress\n"); 388 if (phba->hba_flag & FCF_RR_INPROG) 389 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 390 "2871 FLOGI roundrobin FCF failover " 391 "in progress\n"); 392 } 393 lpfc_unregister_unused_fcf(phba); 394 } 395 396 /** 397 * lpfc_alloc_fast_evt - Allocates data structure for posting event 398 * @phba: Pointer to hba context object. 399 * 400 * This function is called from the functions which need to post 401 * events from interrupt context. This function allocates data 402 * structure required for posting event. It also keeps track of 403 * number of events pending and prevent event storm when there are 404 * too many events. 405 **/ 406 struct lpfc_fast_path_event * 407 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 408 struct lpfc_fast_path_event *ret; 409 410 /* If there are lot of fast event do not exhaust memory due to this */ 411 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 412 return NULL; 413 414 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 415 GFP_ATOMIC); 416 if (ret) { 417 atomic_inc(&phba->fast_event_count); 418 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 419 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 420 } 421 return ret; 422 } 423 424 /** 425 * lpfc_free_fast_evt - Frees event data structure 426 * @phba: Pointer to hba context object. 427 * @evt: Event object which need to be freed. 428 * 429 * This function frees the data structure required for posting 430 * events. 431 **/ 432 void 433 lpfc_free_fast_evt(struct lpfc_hba *phba, 434 struct lpfc_fast_path_event *evt) { 435 436 atomic_dec(&phba->fast_event_count); 437 kfree(evt); 438 } 439 440 /** 441 * lpfc_send_fastpath_evt - Posts events generated from fast path 442 * @phba: Pointer to hba context object. 443 * @evtp: Event data structure. 444 * 445 * This function is called from worker thread, when the interrupt 446 * context need to post an event. This function posts the event 447 * to fc transport netlink interface. 448 **/ 449 static void 450 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 451 struct lpfc_work_evt *evtp) 452 { 453 unsigned long evt_category, evt_sub_category; 454 struct lpfc_fast_path_event *fast_evt_data; 455 char *evt_data; 456 uint32_t evt_data_size; 457 struct Scsi_Host *shost; 458 459 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 460 work_evt); 461 462 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 463 evt_sub_category = (unsigned long) fast_evt_data->un. 464 fabric_evt.subcategory; 465 shost = lpfc_shost_from_vport(fast_evt_data->vport); 466 if (evt_category == FC_REG_FABRIC_EVENT) { 467 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 468 evt_data = (char *) &fast_evt_data->un.read_check_error; 469 evt_data_size = sizeof(fast_evt_data->un. 470 read_check_error); 471 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 472 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 473 evt_data = (char *) &fast_evt_data->un.fabric_evt; 474 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 475 } else { 476 lpfc_free_fast_evt(phba, fast_evt_data); 477 return; 478 } 479 } else if (evt_category == FC_REG_SCSI_EVENT) { 480 switch (evt_sub_category) { 481 case LPFC_EVENT_QFULL: 482 case LPFC_EVENT_DEVBSY: 483 evt_data = (char *) &fast_evt_data->un.scsi_evt; 484 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 485 break; 486 case LPFC_EVENT_CHECK_COND: 487 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 488 evt_data_size = sizeof(fast_evt_data->un. 489 check_cond_evt); 490 break; 491 case LPFC_EVENT_VARQUEDEPTH: 492 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 493 evt_data_size = sizeof(fast_evt_data->un. 494 queue_depth_evt); 495 break; 496 default: 497 lpfc_free_fast_evt(phba, fast_evt_data); 498 return; 499 } 500 } else { 501 lpfc_free_fast_evt(phba, fast_evt_data); 502 return; 503 } 504 505 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 506 fc_host_post_vendor_event(shost, 507 fc_get_event_number(), 508 evt_data_size, 509 evt_data, 510 LPFC_NL_VENDOR_ID); 511 512 lpfc_free_fast_evt(phba, fast_evt_data); 513 return; 514 } 515 516 static void 517 lpfc_work_list_done(struct lpfc_hba *phba) 518 { 519 struct lpfc_work_evt *evtp = NULL; 520 struct lpfc_nodelist *ndlp; 521 int free_evt; 522 int fcf_inuse; 523 uint32_t nlp_did; 524 525 spin_lock_irq(&phba->hbalock); 526 while (!list_empty(&phba->work_list)) { 527 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 528 evt_listp); 529 spin_unlock_irq(&phba->hbalock); 530 free_evt = 1; 531 switch (evtp->evt) { 532 case LPFC_EVT_ELS_RETRY: 533 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 534 lpfc_els_retry_delay_handler(ndlp); 535 free_evt = 0; /* evt is part of ndlp */ 536 /* decrement the node reference count held 537 * for this queued work 538 */ 539 lpfc_nlp_put(ndlp); 540 break; 541 case LPFC_EVT_DEV_LOSS: 542 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 543 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 544 free_evt = 0; 545 /* decrement the node reference count held for 546 * this queued work 547 */ 548 nlp_did = ndlp->nlp_DID; 549 lpfc_nlp_put(ndlp); 550 if (phba->sli_rev == LPFC_SLI_REV4) 551 lpfc_sli4_post_dev_loss_tmo_handler(phba, 552 fcf_inuse, 553 nlp_did); 554 break; 555 case LPFC_EVT_ONLINE: 556 if (phba->link_state < LPFC_LINK_DOWN) 557 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 558 else 559 *(int *) (evtp->evt_arg1) = 0; 560 complete((struct completion *)(evtp->evt_arg2)); 561 break; 562 case LPFC_EVT_OFFLINE_PREP: 563 if (phba->link_state >= LPFC_LINK_DOWN) 564 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 565 *(int *)(evtp->evt_arg1) = 0; 566 complete((struct completion *)(evtp->evt_arg2)); 567 break; 568 case LPFC_EVT_OFFLINE: 569 lpfc_offline(phba); 570 lpfc_sli_brdrestart(phba); 571 *(int *)(evtp->evt_arg1) = 572 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 573 lpfc_unblock_mgmt_io(phba); 574 complete((struct completion *)(evtp->evt_arg2)); 575 break; 576 case LPFC_EVT_WARM_START: 577 lpfc_offline(phba); 578 lpfc_reset_barrier(phba); 579 lpfc_sli_brdreset(phba); 580 lpfc_hba_down_post(phba); 581 *(int *)(evtp->evt_arg1) = 582 lpfc_sli_brdready(phba, HS_MBRDY); 583 lpfc_unblock_mgmt_io(phba); 584 complete((struct completion *)(evtp->evt_arg2)); 585 break; 586 case LPFC_EVT_KILL: 587 lpfc_offline(phba); 588 *(int *)(evtp->evt_arg1) 589 = (phba->pport->stopped) 590 ? 0 : lpfc_sli_brdkill(phba); 591 lpfc_unblock_mgmt_io(phba); 592 complete((struct completion *)(evtp->evt_arg2)); 593 break; 594 case LPFC_EVT_FASTPATH_MGMT_EVT: 595 lpfc_send_fastpath_evt(phba, evtp); 596 free_evt = 0; 597 break; 598 case LPFC_EVT_RESET_HBA: 599 if (!(phba->pport->load_flag & FC_UNLOADING)) 600 lpfc_reset_hba(phba); 601 break; 602 } 603 if (free_evt) 604 kfree(evtp); 605 spin_lock_irq(&phba->hbalock); 606 } 607 spin_unlock_irq(&phba->hbalock); 608 609 } 610 611 static void 612 lpfc_work_done(struct lpfc_hba *phba) 613 { 614 struct lpfc_sli_ring *pring; 615 uint32_t ha_copy, status, control, work_port_events; 616 struct lpfc_vport **vports; 617 struct lpfc_vport *vport; 618 int i; 619 620 spin_lock_irq(&phba->hbalock); 621 ha_copy = phba->work_ha; 622 phba->work_ha = 0; 623 spin_unlock_irq(&phba->hbalock); 624 625 /* First, try to post the next mailbox command to SLI4 device */ 626 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 627 lpfc_sli4_post_async_mbox(phba); 628 629 if (ha_copy & HA_ERATT) 630 /* Handle the error attention event */ 631 lpfc_handle_eratt(phba); 632 633 if (ha_copy & HA_MBATT) 634 lpfc_sli_handle_mb_event(phba); 635 636 if (ha_copy & HA_LATT) 637 lpfc_handle_latt(phba); 638 639 /* Process SLI4 events */ 640 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 641 if (phba->hba_flag & HBA_RRQ_ACTIVE) 642 lpfc_handle_rrq_active(phba); 643 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 644 lpfc_sli4_els_xri_abort_event_proc(phba); 645 if (phba->hba_flag & ASYNC_EVENT) 646 lpfc_sli4_async_event_proc(phba); 647 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 648 spin_lock_irq(&phba->hbalock); 649 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 650 spin_unlock_irq(&phba->hbalock); 651 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 652 } 653 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 654 lpfc_sli4_fcf_redisc_event_proc(phba); 655 } 656 657 vports = lpfc_create_vport_work_array(phba); 658 if (vports != NULL) 659 for (i = 0; i <= phba->max_vports; i++) { 660 /* 661 * We could have no vports in array if unloading, so if 662 * this happens then just use the pport 663 */ 664 if (vports[i] == NULL && i == 0) 665 vport = phba->pport; 666 else 667 vport = vports[i]; 668 if (vport == NULL) 669 break; 670 spin_lock_irq(&vport->work_port_lock); 671 work_port_events = vport->work_port_events; 672 vport->work_port_events &= ~work_port_events; 673 spin_unlock_irq(&vport->work_port_lock); 674 if (work_port_events & WORKER_DISC_TMO) 675 lpfc_disc_timeout_handler(vport); 676 if (work_port_events & WORKER_ELS_TMO) 677 lpfc_els_timeout_handler(vport); 678 if (work_port_events & WORKER_HB_TMO) 679 lpfc_hb_timeout_handler(phba); 680 if (work_port_events & WORKER_MBOX_TMO) 681 lpfc_mbox_timeout_handler(phba); 682 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 683 lpfc_unblock_fabric_iocbs(phba); 684 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 685 lpfc_ramp_down_queue_handler(phba); 686 if (work_port_events & WORKER_DELAYED_DISC_TMO) 687 lpfc_delayed_disc_timeout_handler(vport); 688 } 689 lpfc_destroy_vport_work_array(phba, vports); 690 691 pring = lpfc_phba_elsring(phba); 692 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 693 status >>= (4*LPFC_ELS_RING); 694 if (pring && (status & HA_RXMASK || 695 pring->flag & LPFC_DEFERRED_RING_EVENT || 696 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 697 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 698 pring->flag |= LPFC_DEFERRED_RING_EVENT; 699 /* Preserve legacy behavior. */ 700 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 701 set_bit(LPFC_DATA_READY, &phba->data_flags); 702 } else { 703 /* Driver could have abort request completed in queue 704 * when link goes down. Allow for this transition. 705 */ 706 if (phba->link_state >= LPFC_LINK_DOWN || 707 phba->link_flag & LS_MDS_LOOPBACK) { 708 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 709 lpfc_sli_handle_slow_ring_event(phba, pring, 710 (status & 711 HA_RXMASK)); 712 } 713 } 714 if (phba->sli_rev == LPFC_SLI_REV4) 715 lpfc_drain_txq(phba); 716 /* 717 * Turn on Ring interrupts 718 */ 719 if (phba->sli_rev <= LPFC_SLI_REV3) { 720 spin_lock_irq(&phba->hbalock); 721 control = readl(phba->HCregaddr); 722 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 723 lpfc_debugfs_slow_ring_trc(phba, 724 "WRK Enable ring: cntl:x%x hacopy:x%x", 725 control, ha_copy, 0); 726 727 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 728 writel(control, phba->HCregaddr); 729 readl(phba->HCregaddr); /* flush */ 730 } else { 731 lpfc_debugfs_slow_ring_trc(phba, 732 "WRK Ring ok: cntl:x%x hacopy:x%x", 733 control, ha_copy, 0); 734 } 735 spin_unlock_irq(&phba->hbalock); 736 } 737 } 738 lpfc_work_list_done(phba); 739 } 740 741 int 742 lpfc_do_work(void *p) 743 { 744 struct lpfc_hba *phba = p; 745 int rc; 746 747 set_user_nice(current, MIN_NICE); 748 current->flags |= PF_NOFREEZE; 749 phba->data_flags = 0; 750 751 while (!kthread_should_stop()) { 752 /* wait and check worker queue activities */ 753 rc = wait_event_interruptible(phba->work_waitq, 754 (test_and_clear_bit(LPFC_DATA_READY, 755 &phba->data_flags) 756 || kthread_should_stop())); 757 /* Signal wakeup shall terminate the worker thread */ 758 if (rc) { 759 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 760 "0433 Wakeup on signal: rc=x%x\n", rc); 761 break; 762 } 763 764 /* Attend pending lpfc data processing */ 765 lpfc_work_done(phba); 766 } 767 phba->worker_thread = NULL; 768 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 769 "0432 Worker thread stopped.\n"); 770 return 0; 771 } 772 773 /* 774 * This is only called to handle FC worker events. Since this a rare 775 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 776 * embedding it in the IOCB. 777 */ 778 int 779 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 780 uint32_t evt) 781 { 782 struct lpfc_work_evt *evtp; 783 unsigned long flags; 784 785 /* 786 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 787 * be queued to worker thread for processing 788 */ 789 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 790 if (!evtp) 791 return 0; 792 793 evtp->evt_arg1 = arg1; 794 evtp->evt_arg2 = arg2; 795 evtp->evt = evt; 796 797 spin_lock_irqsave(&phba->hbalock, flags); 798 list_add_tail(&evtp->evt_listp, &phba->work_list); 799 spin_unlock_irqrestore(&phba->hbalock, flags); 800 801 lpfc_worker_wake_up(phba); 802 803 return 1; 804 } 805 806 void 807 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 808 { 809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 810 struct lpfc_hba *phba = vport->phba; 811 struct lpfc_nodelist *ndlp, *next_ndlp; 812 813 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 814 if (!NLP_CHK_NODE_ACT(ndlp)) 815 continue; 816 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 817 continue; 818 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 819 ((vport->port_type == LPFC_NPIV_PORT) && 820 (ndlp->nlp_DID == NameServer_DID))) 821 lpfc_unreg_rpi(vport, ndlp); 822 823 /* Leave Fabric nodes alone on link down */ 824 if ((phba->sli_rev < LPFC_SLI_REV4) && 825 (!remove && ndlp->nlp_type & NLP_FABRIC)) 826 continue; 827 lpfc_disc_state_machine(vport, ndlp, NULL, 828 remove 829 ? NLP_EVT_DEVICE_RM 830 : NLP_EVT_DEVICE_RECOVERY); 831 } 832 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 833 if (phba->sli_rev == LPFC_SLI_REV4) 834 lpfc_sli4_unreg_all_rpis(vport); 835 lpfc_mbx_unreg_vpi(vport); 836 spin_lock_irq(shost->host_lock); 837 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 838 spin_unlock_irq(shost->host_lock); 839 } 840 } 841 842 void 843 lpfc_port_link_failure(struct lpfc_vport *vport) 844 { 845 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 846 847 /* Cleanup any outstanding received buffers */ 848 lpfc_cleanup_rcv_buffers(vport); 849 850 /* Cleanup any outstanding RSCN activity */ 851 lpfc_els_flush_rscn(vport); 852 853 /* Cleanup any outstanding ELS commands */ 854 lpfc_els_flush_cmd(vport); 855 856 lpfc_cleanup_rpis(vport, 0); 857 858 /* Turn off discovery timer if its running */ 859 lpfc_can_disctmo(vport); 860 } 861 862 void 863 lpfc_linkdown_port(struct lpfc_vport *vport) 864 { 865 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 866 867 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 868 fc_host_post_event(shost, fc_get_event_number(), 869 FCH_EVT_LINKDOWN, 0); 870 871 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 872 "Link Down: state:x%x rtry:x%x flg:x%x", 873 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 874 875 lpfc_port_link_failure(vport); 876 877 /* Stop delayed Nport discovery */ 878 spin_lock_irq(shost->host_lock); 879 vport->fc_flag &= ~FC_DISC_DELAYED; 880 spin_unlock_irq(shost->host_lock); 881 del_timer_sync(&vport->delayed_disc_tmo); 882 } 883 884 int 885 lpfc_linkdown(struct lpfc_hba *phba) 886 { 887 struct lpfc_vport *vport = phba->pport; 888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 889 struct lpfc_vport **vports; 890 LPFC_MBOXQ_t *mb; 891 int i; 892 893 if (phba->link_state == LPFC_LINK_DOWN) 894 return 0; 895 896 /* Block all SCSI stack I/Os */ 897 lpfc_scsi_dev_block(phba); 898 899 phba->defer_flogi_acc_flag = false; 900 901 spin_lock_irq(&phba->hbalock); 902 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 903 spin_unlock_irq(&phba->hbalock); 904 if (phba->link_state > LPFC_LINK_DOWN) { 905 phba->link_state = LPFC_LINK_DOWN; 906 if (phba->sli4_hba.conf_trunk) { 907 phba->trunk_link.link0.state = 0; 908 phba->trunk_link.link1.state = 0; 909 phba->trunk_link.link2.state = 0; 910 phba->trunk_link.link3.state = 0; 911 phba->sli4_hba.link_state.logical_speed = 912 LPFC_LINK_SPEED_UNKNOWN; 913 } 914 spin_lock_irq(shost->host_lock); 915 phba->pport->fc_flag &= ~FC_LBIT; 916 spin_unlock_irq(shost->host_lock); 917 } 918 vports = lpfc_create_vport_work_array(phba); 919 if (vports != NULL) { 920 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 921 /* Issue a LINK DOWN event to all nodes */ 922 lpfc_linkdown_port(vports[i]); 923 924 vports[i]->fc_myDID = 0; 925 926 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 927 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 928 if (phba->nvmet_support) 929 lpfc_nvmet_update_targetport(phba); 930 else 931 lpfc_nvme_update_localport(vports[i]); 932 } 933 } 934 } 935 lpfc_destroy_vport_work_array(phba, vports); 936 937 /* Clean up any SLI3 firmware default rpi's */ 938 if (phba->sli_rev > LPFC_SLI_REV3) 939 goto skip_unreg_did; 940 941 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 942 if (mb) { 943 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 944 mb->vport = vport; 945 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 946 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 947 == MBX_NOT_FINISHED) { 948 mempool_free(mb, phba->mbox_mem_pool); 949 } 950 } 951 952 skip_unreg_did: 953 /* Setup myDID for link up if we are in pt2pt mode */ 954 if (phba->pport->fc_flag & FC_PT2PT) { 955 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 956 if (mb) { 957 lpfc_config_link(phba, mb); 958 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 959 mb->vport = vport; 960 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 961 == MBX_NOT_FINISHED) { 962 mempool_free(mb, phba->mbox_mem_pool); 963 } 964 } 965 spin_lock_irq(shost->host_lock); 966 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 967 phba->pport->rcv_flogi_cnt = 0; 968 spin_unlock_irq(shost->host_lock); 969 } 970 return 0; 971 } 972 973 static void 974 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 975 { 976 struct lpfc_nodelist *ndlp; 977 978 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 979 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 980 if (!NLP_CHK_NODE_ACT(ndlp)) 981 continue; 982 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 983 continue; 984 if (ndlp->nlp_type & NLP_FABRIC) { 985 /* On Linkup its safe to clean up the ndlp 986 * from Fabric connections. 987 */ 988 if (ndlp->nlp_DID != Fabric_DID) 989 lpfc_unreg_rpi(vport, ndlp); 990 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 991 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 992 /* Fail outstanding IO now since device is 993 * marked for PLOGI. 994 */ 995 lpfc_unreg_rpi(vport, ndlp); 996 } 997 } 998 } 999 1000 static void 1001 lpfc_linkup_port(struct lpfc_vport *vport) 1002 { 1003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1004 struct lpfc_hba *phba = vport->phba; 1005 1006 if ((vport->load_flag & FC_UNLOADING) != 0) 1007 return; 1008 1009 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1010 "Link Up: top:x%x speed:x%x flg:x%x", 1011 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1012 1013 /* If NPIV is not enabled, only bring the physical port up */ 1014 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1015 (vport != phba->pport)) 1016 return; 1017 1018 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1019 fc_host_post_event(shost, fc_get_event_number(), 1020 FCH_EVT_LINKUP, 0); 1021 1022 spin_lock_irq(shost->host_lock); 1023 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1024 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1025 vport->fc_flag |= FC_NDISC_ACTIVE; 1026 vport->fc_ns_retry = 0; 1027 spin_unlock_irq(shost->host_lock); 1028 1029 if (vport->fc_flag & FC_LBIT) 1030 lpfc_linkup_cleanup_nodes(vport); 1031 1032 } 1033 1034 static int 1035 lpfc_linkup(struct lpfc_hba *phba) 1036 { 1037 struct lpfc_vport **vports; 1038 int i; 1039 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1040 1041 phba->link_state = LPFC_LINK_UP; 1042 1043 /* Unblock fabric iocbs if they are blocked */ 1044 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1045 del_timer_sync(&phba->fabric_block_timer); 1046 1047 vports = lpfc_create_vport_work_array(phba); 1048 if (vports != NULL) 1049 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1050 lpfc_linkup_port(vports[i]); 1051 lpfc_destroy_vport_work_array(phba, vports); 1052 1053 /* Clear the pport flogi counter in case the link down was 1054 * absorbed without an ACQE. No lock here - in worker thread 1055 * and discovery is synchronized. 1056 */ 1057 spin_lock_irq(shost->host_lock); 1058 phba->pport->rcv_flogi_cnt = 0; 1059 spin_unlock_irq(shost->host_lock); 1060 1061 /* reinitialize initial FLOGI flag */ 1062 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1063 phba->defer_flogi_acc_flag = false; 1064 1065 return 0; 1066 } 1067 1068 /* 1069 * This routine handles processing a CLEAR_LA mailbox 1070 * command upon completion. It is setup in the LPFC_MBOXQ 1071 * as the completion routine when the command is 1072 * handed off to the SLI layer. SLI3 only. 1073 */ 1074 static void 1075 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1076 { 1077 struct lpfc_vport *vport = pmb->vport; 1078 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1079 struct lpfc_sli *psli = &phba->sli; 1080 MAILBOX_t *mb = &pmb->u.mb; 1081 uint32_t control; 1082 1083 /* Since we don't do discovery right now, turn these off here */ 1084 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1085 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1086 1087 /* Check for error */ 1088 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1089 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1090 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1091 "0320 CLEAR_LA mbxStatus error x%x hba " 1092 "state x%x\n", 1093 mb->mbxStatus, vport->port_state); 1094 phba->link_state = LPFC_HBA_ERROR; 1095 goto out; 1096 } 1097 1098 if (vport->port_type == LPFC_PHYSICAL_PORT) 1099 phba->link_state = LPFC_HBA_READY; 1100 1101 spin_lock_irq(&phba->hbalock); 1102 psli->sli_flag |= LPFC_PROCESS_LA; 1103 control = readl(phba->HCregaddr); 1104 control |= HC_LAINT_ENA; 1105 writel(control, phba->HCregaddr); 1106 readl(phba->HCregaddr); /* flush */ 1107 spin_unlock_irq(&phba->hbalock); 1108 mempool_free(pmb, phba->mbox_mem_pool); 1109 return; 1110 1111 out: 1112 /* Device Discovery completes */ 1113 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1114 "0225 Device Discovery completes\n"); 1115 mempool_free(pmb, phba->mbox_mem_pool); 1116 1117 spin_lock_irq(shost->host_lock); 1118 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1119 spin_unlock_irq(shost->host_lock); 1120 1121 lpfc_can_disctmo(vport); 1122 1123 /* turn on Link Attention interrupts */ 1124 1125 spin_lock_irq(&phba->hbalock); 1126 psli->sli_flag |= LPFC_PROCESS_LA; 1127 control = readl(phba->HCregaddr); 1128 control |= HC_LAINT_ENA; 1129 writel(control, phba->HCregaddr); 1130 readl(phba->HCregaddr); /* flush */ 1131 spin_unlock_irq(&phba->hbalock); 1132 1133 return; 1134 } 1135 1136 1137 void 1138 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1139 { 1140 struct lpfc_vport *vport = pmb->vport; 1141 1142 if (pmb->u.mb.mbxStatus) 1143 goto out; 1144 1145 mempool_free(pmb, phba->mbox_mem_pool); 1146 1147 /* don't perform discovery for SLI4 loopback diagnostic test */ 1148 if ((phba->sli_rev == LPFC_SLI_REV4) && 1149 !(phba->hba_flag & HBA_FCOE_MODE) && 1150 (phba->link_flag & LS_LOOPBACK_MODE)) 1151 return; 1152 1153 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1154 vport->fc_flag & FC_PUBLIC_LOOP && 1155 !(vport->fc_flag & FC_LBIT)) { 1156 /* Need to wait for FAN - use discovery timer 1157 * for timeout. port_state is identically 1158 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1159 */ 1160 lpfc_set_disctmo(vport); 1161 return; 1162 } 1163 1164 /* Start discovery by sending a FLOGI. port_state is identically 1165 * LPFC_FLOGI while waiting for FLOGI cmpl 1166 */ 1167 if (vport->port_state != LPFC_FLOGI) 1168 lpfc_initial_flogi(vport); 1169 else if (vport->fc_flag & FC_PT2PT) 1170 lpfc_disc_start(vport); 1171 1172 return; 1173 1174 out: 1175 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1176 "0306 CONFIG_LINK mbxStatus error x%x " 1177 "HBA state x%x\n", 1178 pmb->u.mb.mbxStatus, vport->port_state); 1179 mempool_free(pmb, phba->mbox_mem_pool); 1180 1181 lpfc_linkdown(phba); 1182 1183 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1184 "0200 CONFIG_LINK bad hba state x%x\n", 1185 vport->port_state); 1186 1187 lpfc_issue_clear_la(phba, vport); 1188 return; 1189 } 1190 1191 /** 1192 * lpfc_sli4_clear_fcf_rr_bmask 1193 * @phba pointer to the struct lpfc_hba for this port. 1194 * This fucnction resets the round robin bit mask and clears the 1195 * fcf priority list. The list deletions are done while holding the 1196 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1197 * from the lpfc_fcf_pri record. 1198 **/ 1199 void 1200 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1201 { 1202 struct lpfc_fcf_pri *fcf_pri; 1203 struct lpfc_fcf_pri *next_fcf_pri; 1204 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1205 spin_lock_irq(&phba->hbalock); 1206 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1207 &phba->fcf.fcf_pri_list, list) { 1208 list_del_init(&fcf_pri->list); 1209 fcf_pri->fcf_rec.flag = 0; 1210 } 1211 spin_unlock_irq(&phba->hbalock); 1212 } 1213 static void 1214 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1215 { 1216 struct lpfc_vport *vport = mboxq->vport; 1217 1218 if (mboxq->u.mb.mbxStatus) { 1219 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1220 "2017 REG_FCFI mbxStatus error x%x " 1221 "HBA state x%x\n", 1222 mboxq->u.mb.mbxStatus, vport->port_state); 1223 goto fail_out; 1224 } 1225 1226 /* Start FCoE discovery by sending a FLOGI. */ 1227 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1228 /* Set the FCFI registered flag */ 1229 spin_lock_irq(&phba->hbalock); 1230 phba->fcf.fcf_flag |= FCF_REGISTERED; 1231 spin_unlock_irq(&phba->hbalock); 1232 1233 /* If there is a pending FCoE event, restart FCF table scan. */ 1234 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1235 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1236 goto fail_out; 1237 1238 /* Mark successful completion of FCF table scan */ 1239 spin_lock_irq(&phba->hbalock); 1240 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1241 phba->hba_flag &= ~FCF_TS_INPROG; 1242 if (vport->port_state != LPFC_FLOGI) { 1243 phba->hba_flag |= FCF_RR_INPROG; 1244 spin_unlock_irq(&phba->hbalock); 1245 lpfc_issue_init_vfi(vport); 1246 goto out; 1247 } 1248 spin_unlock_irq(&phba->hbalock); 1249 goto out; 1250 1251 fail_out: 1252 spin_lock_irq(&phba->hbalock); 1253 phba->hba_flag &= ~FCF_RR_INPROG; 1254 spin_unlock_irq(&phba->hbalock); 1255 out: 1256 mempool_free(mboxq, phba->mbox_mem_pool); 1257 } 1258 1259 /** 1260 * lpfc_fab_name_match - Check if the fcf fabric name match. 1261 * @fab_name: pointer to fabric name. 1262 * @new_fcf_record: pointer to fcf record. 1263 * 1264 * This routine compare the fcf record's fabric name with provided 1265 * fabric name. If the fabric name are identical this function 1266 * returns 1 else return 0. 1267 **/ 1268 static uint32_t 1269 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1270 { 1271 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1272 return 0; 1273 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1274 return 0; 1275 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1276 return 0; 1277 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1278 return 0; 1279 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1280 return 0; 1281 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1282 return 0; 1283 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1284 return 0; 1285 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1286 return 0; 1287 return 1; 1288 } 1289 1290 /** 1291 * lpfc_sw_name_match - Check if the fcf switch name match. 1292 * @fab_name: pointer to fabric name. 1293 * @new_fcf_record: pointer to fcf record. 1294 * 1295 * This routine compare the fcf record's switch name with provided 1296 * switch name. If the switch name are identical this function 1297 * returns 1 else return 0. 1298 **/ 1299 static uint32_t 1300 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1301 { 1302 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1303 return 0; 1304 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1305 return 0; 1306 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1307 return 0; 1308 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1309 return 0; 1310 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1311 return 0; 1312 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1313 return 0; 1314 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1315 return 0; 1316 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1317 return 0; 1318 return 1; 1319 } 1320 1321 /** 1322 * lpfc_mac_addr_match - Check if the fcf mac address match. 1323 * @mac_addr: pointer to mac address. 1324 * @new_fcf_record: pointer to fcf record. 1325 * 1326 * This routine compare the fcf record's mac address with HBA's 1327 * FCF mac address. If the mac addresses are identical this function 1328 * returns 1 else return 0. 1329 **/ 1330 static uint32_t 1331 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1332 { 1333 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1334 return 0; 1335 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1336 return 0; 1337 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1338 return 0; 1339 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1340 return 0; 1341 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1342 return 0; 1343 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1344 return 0; 1345 return 1; 1346 } 1347 1348 static bool 1349 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1350 { 1351 return (curr_vlan_id == new_vlan_id); 1352 } 1353 1354 /** 1355 * lpfc_update_fcf_record - Update driver fcf record 1356 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1357 * @phba: pointer to lpfc hba data structure. 1358 * @fcf_index: Index for the lpfc_fcf_record. 1359 * @new_fcf_record: pointer to hba fcf record. 1360 * 1361 * This routine updates the driver FCF priority record from the new HBA FCF 1362 * record. This routine is called with the host lock held. 1363 **/ 1364 static void 1365 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1366 struct fcf_record *new_fcf_record 1367 ) 1368 { 1369 struct lpfc_fcf_pri *fcf_pri; 1370 1371 lockdep_assert_held(&phba->hbalock); 1372 1373 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1374 fcf_pri->fcf_rec.fcf_index = fcf_index; 1375 /* FCF record priority */ 1376 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1377 1378 } 1379 1380 /** 1381 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1382 * @fcf: pointer to driver fcf record. 1383 * @new_fcf_record: pointer to fcf record. 1384 * 1385 * This routine copies the FCF information from the FCF 1386 * record to lpfc_hba data structure. 1387 **/ 1388 static void 1389 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1390 struct fcf_record *new_fcf_record) 1391 { 1392 /* Fabric name */ 1393 fcf_rec->fabric_name[0] = 1394 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1395 fcf_rec->fabric_name[1] = 1396 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1397 fcf_rec->fabric_name[2] = 1398 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1399 fcf_rec->fabric_name[3] = 1400 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1401 fcf_rec->fabric_name[4] = 1402 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1403 fcf_rec->fabric_name[5] = 1404 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1405 fcf_rec->fabric_name[6] = 1406 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1407 fcf_rec->fabric_name[7] = 1408 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1409 /* Mac address */ 1410 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1411 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1412 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1413 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1414 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1415 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1416 /* FCF record index */ 1417 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1418 /* FCF record priority */ 1419 fcf_rec->priority = new_fcf_record->fip_priority; 1420 /* Switch name */ 1421 fcf_rec->switch_name[0] = 1422 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1423 fcf_rec->switch_name[1] = 1424 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1425 fcf_rec->switch_name[2] = 1426 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1427 fcf_rec->switch_name[3] = 1428 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1429 fcf_rec->switch_name[4] = 1430 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1431 fcf_rec->switch_name[5] = 1432 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1433 fcf_rec->switch_name[6] = 1434 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1435 fcf_rec->switch_name[7] = 1436 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1437 } 1438 1439 /** 1440 * lpfc_update_fcf_record - Update driver fcf record 1441 * @phba: pointer to lpfc hba data structure. 1442 * @fcf_rec: pointer to driver fcf record. 1443 * @new_fcf_record: pointer to hba fcf record. 1444 * @addr_mode: address mode to be set to the driver fcf record. 1445 * @vlan_id: vlan tag to be set to the driver fcf record. 1446 * @flag: flag bits to be set to the driver fcf record. 1447 * 1448 * This routine updates the driver FCF record from the new HBA FCF record 1449 * together with the address mode, vlan_id, and other informations. This 1450 * routine is called with the host lock held. 1451 **/ 1452 static void 1453 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1454 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1455 uint16_t vlan_id, uint32_t flag) 1456 { 1457 lockdep_assert_held(&phba->hbalock); 1458 1459 /* Copy the fields from the HBA's FCF record */ 1460 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1461 /* Update other fields of driver FCF record */ 1462 fcf_rec->addr_mode = addr_mode; 1463 fcf_rec->vlan_id = vlan_id; 1464 fcf_rec->flag |= (flag | RECORD_VALID); 1465 __lpfc_update_fcf_record_pri(phba, 1466 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1467 new_fcf_record); 1468 } 1469 1470 /** 1471 * lpfc_register_fcf - Register the FCF with hba. 1472 * @phba: pointer to lpfc hba data structure. 1473 * 1474 * This routine issues a register fcfi mailbox command to register 1475 * the fcf with HBA. 1476 **/ 1477 static void 1478 lpfc_register_fcf(struct lpfc_hba *phba) 1479 { 1480 LPFC_MBOXQ_t *fcf_mbxq; 1481 int rc; 1482 1483 spin_lock_irq(&phba->hbalock); 1484 /* If the FCF is not available do nothing. */ 1485 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1486 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1487 spin_unlock_irq(&phba->hbalock); 1488 return; 1489 } 1490 1491 /* The FCF is already registered, start discovery */ 1492 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1493 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1494 phba->hba_flag &= ~FCF_TS_INPROG; 1495 if (phba->pport->port_state != LPFC_FLOGI && 1496 phba->pport->fc_flag & FC_FABRIC) { 1497 phba->hba_flag |= FCF_RR_INPROG; 1498 spin_unlock_irq(&phba->hbalock); 1499 lpfc_initial_flogi(phba->pport); 1500 return; 1501 } 1502 spin_unlock_irq(&phba->hbalock); 1503 return; 1504 } 1505 spin_unlock_irq(&phba->hbalock); 1506 1507 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1508 if (!fcf_mbxq) { 1509 spin_lock_irq(&phba->hbalock); 1510 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1511 spin_unlock_irq(&phba->hbalock); 1512 return; 1513 } 1514 1515 lpfc_reg_fcfi(phba, fcf_mbxq); 1516 fcf_mbxq->vport = phba->pport; 1517 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1518 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1519 if (rc == MBX_NOT_FINISHED) { 1520 spin_lock_irq(&phba->hbalock); 1521 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1522 spin_unlock_irq(&phba->hbalock); 1523 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1524 } 1525 1526 return; 1527 } 1528 1529 /** 1530 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1531 * @phba: pointer to lpfc hba data structure. 1532 * @new_fcf_record: pointer to fcf record. 1533 * @boot_flag: Indicates if this record used by boot bios. 1534 * @addr_mode: The address mode to be used by this FCF 1535 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1536 * 1537 * This routine compare the fcf record with connect list obtained from the 1538 * config region to decide if this FCF can be used for SAN discovery. It returns 1539 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1540 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1541 * is used by boot bios and addr_mode will indicate the addressing mode to be 1542 * used for this FCF when the function returns. 1543 * If the FCF record need to be used with a particular vlan id, the vlan is 1544 * set in the vlan_id on return of the function. If not VLAN tagging need to 1545 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1546 **/ 1547 static int 1548 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1549 struct fcf_record *new_fcf_record, 1550 uint32_t *boot_flag, uint32_t *addr_mode, 1551 uint16_t *vlan_id) 1552 { 1553 struct lpfc_fcf_conn_entry *conn_entry; 1554 int i, j, fcf_vlan_id = 0; 1555 1556 /* Find the lowest VLAN id in the FCF record */ 1557 for (i = 0; i < 512; i++) { 1558 if (new_fcf_record->vlan_bitmap[i]) { 1559 fcf_vlan_id = i * 8; 1560 j = 0; 1561 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1562 j++; 1563 fcf_vlan_id++; 1564 } 1565 break; 1566 } 1567 } 1568 1569 /* FCF not valid/available or solicitation in progress */ 1570 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1571 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1572 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1573 return 0; 1574 1575 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1576 *boot_flag = 0; 1577 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1578 new_fcf_record); 1579 if (phba->valid_vlan) 1580 *vlan_id = phba->vlan_id; 1581 else 1582 *vlan_id = LPFC_FCOE_NULL_VID; 1583 return 1; 1584 } 1585 1586 /* 1587 * If there are no FCF connection table entry, driver connect to all 1588 * FCFs. 1589 */ 1590 if (list_empty(&phba->fcf_conn_rec_list)) { 1591 *boot_flag = 0; 1592 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1593 new_fcf_record); 1594 1595 /* 1596 * When there are no FCF connect entries, use driver's default 1597 * addressing mode - FPMA. 1598 */ 1599 if (*addr_mode & LPFC_FCF_FPMA) 1600 *addr_mode = LPFC_FCF_FPMA; 1601 1602 /* If FCF record report a vlan id use that vlan id */ 1603 if (fcf_vlan_id) 1604 *vlan_id = fcf_vlan_id; 1605 else 1606 *vlan_id = LPFC_FCOE_NULL_VID; 1607 return 1; 1608 } 1609 1610 list_for_each_entry(conn_entry, 1611 &phba->fcf_conn_rec_list, list) { 1612 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1613 continue; 1614 1615 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1616 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1617 new_fcf_record)) 1618 continue; 1619 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1620 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1621 new_fcf_record)) 1622 continue; 1623 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1624 /* 1625 * If the vlan bit map does not have the bit set for the 1626 * vlan id to be used, then it is not a match. 1627 */ 1628 if (!(new_fcf_record->vlan_bitmap 1629 [conn_entry->conn_rec.vlan_tag / 8] & 1630 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1631 continue; 1632 } 1633 1634 /* 1635 * If connection record does not support any addressing mode, 1636 * skip the FCF record. 1637 */ 1638 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1639 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1640 continue; 1641 1642 /* 1643 * Check if the connection record specifies a required 1644 * addressing mode. 1645 */ 1646 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1647 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1648 1649 /* 1650 * If SPMA required but FCF not support this continue. 1651 */ 1652 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1653 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1654 new_fcf_record) & LPFC_FCF_SPMA)) 1655 continue; 1656 1657 /* 1658 * If FPMA required but FCF not support this continue. 1659 */ 1660 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1661 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1662 new_fcf_record) & LPFC_FCF_FPMA)) 1663 continue; 1664 } 1665 1666 /* 1667 * This fcf record matches filtering criteria. 1668 */ 1669 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1670 *boot_flag = 1; 1671 else 1672 *boot_flag = 0; 1673 1674 /* 1675 * If user did not specify any addressing mode, or if the 1676 * preferred addressing mode specified by user is not supported 1677 * by FCF, allow fabric to pick the addressing mode. 1678 */ 1679 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1680 new_fcf_record); 1681 /* 1682 * If the user specified a required address mode, assign that 1683 * address mode 1684 */ 1685 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1686 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1687 *addr_mode = (conn_entry->conn_rec.flags & 1688 FCFCNCT_AM_SPMA) ? 1689 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1690 /* 1691 * If the user specified a preferred address mode, use the 1692 * addr mode only if FCF support the addr_mode. 1693 */ 1694 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1695 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1696 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1697 (*addr_mode & LPFC_FCF_SPMA)) 1698 *addr_mode = LPFC_FCF_SPMA; 1699 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1700 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1701 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1702 (*addr_mode & LPFC_FCF_FPMA)) 1703 *addr_mode = LPFC_FCF_FPMA; 1704 1705 /* If matching connect list has a vlan id, use it */ 1706 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1707 *vlan_id = conn_entry->conn_rec.vlan_tag; 1708 /* 1709 * If no vlan id is specified in connect list, use the vlan id 1710 * in the FCF record 1711 */ 1712 else if (fcf_vlan_id) 1713 *vlan_id = fcf_vlan_id; 1714 else 1715 *vlan_id = LPFC_FCOE_NULL_VID; 1716 1717 return 1; 1718 } 1719 1720 return 0; 1721 } 1722 1723 /** 1724 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1725 * @phba: pointer to lpfc hba data structure. 1726 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1727 * 1728 * This function check if there is any fcoe event pending while driver 1729 * scan FCF entries. If there is any pending event, it will restart the 1730 * FCF saning and return 1 else return 0. 1731 */ 1732 int 1733 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1734 { 1735 /* 1736 * If the Link is up and no FCoE events while in the 1737 * FCF discovery, no need to restart FCF discovery. 1738 */ 1739 if ((phba->link_state >= LPFC_LINK_UP) && 1740 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1741 return 0; 1742 1743 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1744 "2768 Pending link or FCF event during current " 1745 "handling of the previous event: link_state:x%x, " 1746 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1747 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1748 phba->fcoe_eventtag); 1749 1750 spin_lock_irq(&phba->hbalock); 1751 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1752 spin_unlock_irq(&phba->hbalock); 1753 1754 if (phba->link_state >= LPFC_LINK_UP) { 1755 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1756 "2780 Restart FCF table scan due to " 1757 "pending FCF event:evt_tag_at_scan:x%x, " 1758 "evt_tag_current:x%x\n", 1759 phba->fcoe_eventtag_at_fcf_scan, 1760 phba->fcoe_eventtag); 1761 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1762 } else { 1763 /* 1764 * Do not continue FCF discovery and clear FCF_TS_INPROG 1765 * flag 1766 */ 1767 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1768 "2833 Stop FCF discovery process due to link " 1769 "state change (x%x)\n", phba->link_state); 1770 spin_lock_irq(&phba->hbalock); 1771 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1772 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1773 spin_unlock_irq(&phba->hbalock); 1774 } 1775 1776 /* Unregister the currently registered FCF if required */ 1777 if (unreg_fcf) { 1778 spin_lock_irq(&phba->hbalock); 1779 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1780 spin_unlock_irq(&phba->hbalock); 1781 lpfc_sli4_unregister_fcf(phba); 1782 } 1783 return 1; 1784 } 1785 1786 /** 1787 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1788 * @phba: pointer to lpfc hba data structure. 1789 * @fcf_cnt: number of eligible fcf record seen so far. 1790 * 1791 * This function makes an running random selection decision on FCF record to 1792 * use through a sequence of @fcf_cnt eligible FCF records with equal 1793 * probability. To perform integer manunipulation of random numbers with 1794 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1795 * from prandom_u32() are taken as the random random number generated. 1796 * 1797 * Returns true when outcome is for the newly read FCF record should be 1798 * chosen; otherwise, return false when outcome is for keeping the previously 1799 * chosen FCF record. 1800 **/ 1801 static bool 1802 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1803 { 1804 uint32_t rand_num; 1805 1806 /* Get 16-bit uniform random number */ 1807 rand_num = 0xFFFF & prandom_u32(); 1808 1809 /* Decision with probability 1/fcf_cnt */ 1810 if ((fcf_cnt * rand_num) < 0xFFFF) 1811 return true; 1812 else 1813 return false; 1814 } 1815 1816 /** 1817 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1818 * @phba: pointer to lpfc hba data structure. 1819 * @mboxq: pointer to mailbox object. 1820 * @next_fcf_index: pointer to holder of next fcf index. 1821 * 1822 * This routine parses the non-embedded fcf mailbox command by performing the 1823 * necessarily error checking, non-embedded read FCF record mailbox command 1824 * SGE parsing, and endianness swapping. 1825 * 1826 * Returns the pointer to the new FCF record in the non-embedded mailbox 1827 * command DMA memory if successfully, other NULL. 1828 */ 1829 static struct fcf_record * 1830 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1831 uint16_t *next_fcf_index) 1832 { 1833 void *virt_addr; 1834 struct lpfc_mbx_sge sge; 1835 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1836 uint32_t shdr_status, shdr_add_status, if_type; 1837 union lpfc_sli4_cfg_shdr *shdr; 1838 struct fcf_record *new_fcf_record; 1839 1840 /* Get the first SGE entry from the non-embedded DMA memory. This 1841 * routine only uses a single SGE. 1842 */ 1843 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1844 if (unlikely(!mboxq->sge_array)) { 1845 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1846 "2524 Failed to get the non-embedded SGE " 1847 "virtual address\n"); 1848 return NULL; 1849 } 1850 virt_addr = mboxq->sge_array->addr[0]; 1851 1852 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1853 lpfc_sli_pcimem_bcopy(shdr, shdr, 1854 sizeof(union lpfc_sli4_cfg_shdr)); 1855 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1856 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1857 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1858 if (shdr_status || shdr_add_status) { 1859 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1860 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1861 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1862 "2726 READ_FCF_RECORD Indicates empty " 1863 "FCF table.\n"); 1864 else 1865 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1866 "2521 READ_FCF_RECORD mailbox failed " 1867 "with status x%x add_status x%x, " 1868 "mbx\n", shdr_status, shdr_add_status); 1869 return NULL; 1870 } 1871 1872 /* Interpreting the returned information of the FCF record */ 1873 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1874 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1875 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1876 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1877 new_fcf_record = (struct fcf_record *)(virt_addr + 1878 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1879 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1880 offsetof(struct fcf_record, vlan_bitmap)); 1881 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1882 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1883 1884 return new_fcf_record; 1885 } 1886 1887 /** 1888 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1889 * @phba: pointer to lpfc hba data structure. 1890 * @fcf_record: pointer to the fcf record. 1891 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1892 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1893 * 1894 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1895 * enabled. 1896 **/ 1897 static void 1898 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1899 struct fcf_record *fcf_record, 1900 uint16_t vlan_id, 1901 uint16_t next_fcf_index) 1902 { 1903 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1904 "2764 READ_FCF_RECORD:\n" 1905 "\tFCF_Index : x%x\n" 1906 "\tFCF_Avail : x%x\n" 1907 "\tFCF_Valid : x%x\n" 1908 "\tFCF_SOL : x%x\n" 1909 "\tFIP_Priority : x%x\n" 1910 "\tMAC_Provider : x%x\n" 1911 "\tLowest VLANID : x%x\n" 1912 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1913 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1914 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1915 "\tNext_FCF_Index: x%x\n", 1916 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1917 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1918 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1919 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1920 fcf_record->fip_priority, 1921 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1922 vlan_id, 1923 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1924 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1925 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1926 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1927 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1928 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1929 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1930 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1931 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1932 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1933 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1934 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1935 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1936 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1937 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1938 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1939 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1940 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1941 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1942 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1943 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1944 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1945 next_fcf_index); 1946 } 1947 1948 /** 1949 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1950 * @phba: pointer to lpfc hba data structure. 1951 * @fcf_rec: pointer to an existing FCF record. 1952 * @new_fcf_record: pointer to a new FCF record. 1953 * @new_vlan_id: vlan id from the new FCF record. 1954 * 1955 * This function performs matching test of a new FCF record against an existing 1956 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1957 * will not be used as part of the FCF record matching criteria. 1958 * 1959 * Returns true if all the fields matching, otherwise returns false. 1960 */ 1961 static bool 1962 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1963 struct lpfc_fcf_rec *fcf_rec, 1964 struct fcf_record *new_fcf_record, 1965 uint16_t new_vlan_id) 1966 { 1967 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1968 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1969 return false; 1970 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1971 return false; 1972 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1973 return false; 1974 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1975 return false; 1976 if (fcf_rec->priority != new_fcf_record->fip_priority) 1977 return false; 1978 return true; 1979 } 1980 1981 /** 1982 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1983 * @vport: Pointer to vport object. 1984 * @fcf_index: index to next fcf. 1985 * 1986 * This function processing the roundrobin fcf failover to next fcf index. 1987 * When this function is invoked, there will be a current fcf registered 1988 * for flogi. 1989 * Return: 0 for continue retrying flogi on currently registered fcf; 1990 * 1 for stop flogi on currently registered fcf; 1991 */ 1992 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1993 { 1994 struct lpfc_hba *phba = vport->phba; 1995 int rc; 1996 1997 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1998 spin_lock_irq(&phba->hbalock); 1999 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2000 spin_unlock_irq(&phba->hbalock); 2001 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2002 "2872 Devloss tmo with no eligible " 2003 "FCF, unregister in-use FCF (x%x) " 2004 "and rescan FCF table\n", 2005 phba->fcf.current_rec.fcf_indx); 2006 lpfc_unregister_fcf_rescan(phba); 2007 goto stop_flogi_current_fcf; 2008 } 2009 /* Mark the end to FLOGI roundrobin failover */ 2010 phba->hba_flag &= ~FCF_RR_INPROG; 2011 /* Allow action to new fcf asynchronous event */ 2012 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2013 spin_unlock_irq(&phba->hbalock); 2014 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2015 "2865 No FCF available, stop roundrobin FCF " 2016 "failover and change port state:x%x/x%x\n", 2017 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2018 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2019 2020 if (!phba->fcf.fcf_redisc_attempted) { 2021 lpfc_unregister_fcf(phba); 2022 2023 rc = lpfc_sli4_redisc_fcf_table(phba); 2024 if (!rc) { 2025 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2026 "3195 Rediscover FCF table\n"); 2027 phba->fcf.fcf_redisc_attempted = 1; 2028 lpfc_sli4_clear_fcf_rr_bmask(phba); 2029 } else { 2030 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2031 "3196 Rediscover FCF table " 2032 "failed. Status:x%x\n", rc); 2033 } 2034 } else { 2035 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2036 "3197 Already rediscover FCF table " 2037 "attempted. No more retry\n"); 2038 } 2039 goto stop_flogi_current_fcf; 2040 } else { 2041 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2042 "2794 Try FLOGI roundrobin FCF failover to " 2043 "(x%x)\n", fcf_index); 2044 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2045 if (rc) 2046 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2047 "2761 FLOGI roundrobin FCF failover " 2048 "failed (rc:x%x) to read FCF (x%x)\n", 2049 rc, phba->fcf.current_rec.fcf_indx); 2050 else 2051 goto stop_flogi_current_fcf; 2052 } 2053 return 0; 2054 2055 stop_flogi_current_fcf: 2056 lpfc_can_disctmo(vport); 2057 return 1; 2058 } 2059 2060 /** 2061 * lpfc_sli4_fcf_pri_list_del 2062 * @phba: pointer to lpfc hba data structure. 2063 * @fcf_index the index of the fcf record to delete 2064 * This routine checks the on list flag of the fcf_index to be deleted. 2065 * If it is one the list then it is removed from the list, and the flag 2066 * is cleared. This routine grab the hbalock before removing the fcf 2067 * record from the list. 2068 **/ 2069 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2070 uint16_t fcf_index) 2071 { 2072 struct lpfc_fcf_pri *new_fcf_pri; 2073 2074 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2075 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2076 "3058 deleting idx x%x pri x%x flg x%x\n", 2077 fcf_index, new_fcf_pri->fcf_rec.priority, 2078 new_fcf_pri->fcf_rec.flag); 2079 spin_lock_irq(&phba->hbalock); 2080 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2081 if (phba->fcf.current_rec.priority == 2082 new_fcf_pri->fcf_rec.priority) 2083 phba->fcf.eligible_fcf_cnt--; 2084 list_del_init(&new_fcf_pri->list); 2085 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2086 } 2087 spin_unlock_irq(&phba->hbalock); 2088 } 2089 2090 /** 2091 * lpfc_sli4_set_fcf_flogi_fail 2092 * @phba: pointer to lpfc hba data structure. 2093 * @fcf_index the index of the fcf record to update 2094 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2095 * flag so the the round robin slection for the particular priority level 2096 * will try a different fcf record that does not have this bit set. 2097 * If the fcf record is re-read for any reason this flag is cleared brfore 2098 * adding it to the priority list. 2099 **/ 2100 void 2101 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2102 { 2103 struct lpfc_fcf_pri *new_fcf_pri; 2104 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2105 spin_lock_irq(&phba->hbalock); 2106 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2107 spin_unlock_irq(&phba->hbalock); 2108 } 2109 2110 /** 2111 * lpfc_sli4_fcf_pri_list_add 2112 * @phba: pointer to lpfc hba data structure. 2113 * @fcf_index the index of the fcf record to add 2114 * This routine checks the priority of the fcf_index to be added. 2115 * If it is a lower priority than the current head of the fcf_pri list 2116 * then it is added to the list in the right order. 2117 * If it is the same priority as the current head of the list then it 2118 * is added to the head of the list and its bit in the rr_bmask is set. 2119 * If the fcf_index to be added is of a higher priority than the current 2120 * head of the list then the rr_bmask is cleared, its bit is set in the 2121 * rr_bmask and it is added to the head of the list. 2122 * returns: 2123 * 0=success 1=failure 2124 **/ 2125 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2126 uint16_t fcf_index, 2127 struct fcf_record *new_fcf_record) 2128 { 2129 uint16_t current_fcf_pri; 2130 uint16_t last_index; 2131 struct lpfc_fcf_pri *fcf_pri; 2132 struct lpfc_fcf_pri *next_fcf_pri; 2133 struct lpfc_fcf_pri *new_fcf_pri; 2134 int ret; 2135 2136 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2137 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2138 "3059 adding idx x%x pri x%x flg x%x\n", 2139 fcf_index, new_fcf_record->fip_priority, 2140 new_fcf_pri->fcf_rec.flag); 2141 spin_lock_irq(&phba->hbalock); 2142 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2143 list_del_init(&new_fcf_pri->list); 2144 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2145 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2146 if (list_empty(&phba->fcf.fcf_pri_list)) { 2147 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2148 ret = lpfc_sli4_fcf_rr_index_set(phba, 2149 new_fcf_pri->fcf_rec.fcf_index); 2150 goto out; 2151 } 2152 2153 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2154 LPFC_SLI4_FCF_TBL_INDX_MAX); 2155 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2156 ret = 0; /* Empty rr list */ 2157 goto out; 2158 } 2159 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2160 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2161 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2162 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2163 memset(phba->fcf.fcf_rr_bmask, 0, 2164 sizeof(*phba->fcf.fcf_rr_bmask)); 2165 /* fcfs_at_this_priority_level = 1; */ 2166 phba->fcf.eligible_fcf_cnt = 1; 2167 } else 2168 /* fcfs_at_this_priority_level++; */ 2169 phba->fcf.eligible_fcf_cnt++; 2170 ret = lpfc_sli4_fcf_rr_index_set(phba, 2171 new_fcf_pri->fcf_rec.fcf_index); 2172 goto out; 2173 } 2174 2175 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2176 &phba->fcf.fcf_pri_list, list) { 2177 if (new_fcf_pri->fcf_rec.priority <= 2178 fcf_pri->fcf_rec.priority) { 2179 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2180 list_add(&new_fcf_pri->list, 2181 &phba->fcf.fcf_pri_list); 2182 else 2183 list_add(&new_fcf_pri->list, 2184 &((struct lpfc_fcf_pri *) 2185 fcf_pri->list.prev)->list); 2186 ret = 0; 2187 goto out; 2188 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2189 || new_fcf_pri->fcf_rec.priority < 2190 next_fcf_pri->fcf_rec.priority) { 2191 list_add(&new_fcf_pri->list, &fcf_pri->list); 2192 ret = 0; 2193 goto out; 2194 } 2195 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2196 continue; 2197 2198 } 2199 ret = 1; 2200 out: 2201 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2202 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2203 spin_unlock_irq(&phba->hbalock); 2204 return ret; 2205 } 2206 2207 /** 2208 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2209 * @phba: pointer to lpfc hba data structure. 2210 * @mboxq: pointer to mailbox object. 2211 * 2212 * This function iterates through all the fcf records available in 2213 * HBA and chooses the optimal FCF record for discovery. After finding 2214 * the FCF for discovery it registers the FCF record and kicks start 2215 * discovery. 2216 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2217 * use an FCF record which matches fabric name and mac address of the 2218 * currently used FCF record. 2219 * If the driver supports only one FCF, it will try to use the FCF record 2220 * used by BOOT_BIOS. 2221 */ 2222 void 2223 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2224 { 2225 struct fcf_record *new_fcf_record; 2226 uint32_t boot_flag, addr_mode; 2227 uint16_t fcf_index, next_fcf_index; 2228 struct lpfc_fcf_rec *fcf_rec = NULL; 2229 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2230 bool select_new_fcf; 2231 int rc; 2232 2233 /* If there is pending FCoE event restart FCF table scan */ 2234 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2235 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2236 return; 2237 } 2238 2239 /* Parse the FCF record from the non-embedded mailbox command */ 2240 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2241 &next_fcf_index); 2242 if (!new_fcf_record) { 2243 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2244 "2765 Mailbox command READ_FCF_RECORD " 2245 "failed to retrieve a FCF record.\n"); 2246 /* Let next new FCF event trigger fast failover */ 2247 spin_lock_irq(&phba->hbalock); 2248 phba->hba_flag &= ~FCF_TS_INPROG; 2249 spin_unlock_irq(&phba->hbalock); 2250 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2251 return; 2252 } 2253 2254 /* Check the FCF record against the connection list */ 2255 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2256 &addr_mode, &vlan_id); 2257 2258 /* Log the FCF record information if turned on */ 2259 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2260 next_fcf_index); 2261 2262 /* 2263 * If the fcf record does not match with connect list entries 2264 * read the next entry; otherwise, this is an eligible FCF 2265 * record for roundrobin FCF failover. 2266 */ 2267 if (!rc) { 2268 lpfc_sli4_fcf_pri_list_del(phba, 2269 bf_get(lpfc_fcf_record_fcf_index, 2270 new_fcf_record)); 2271 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2272 "2781 FCF (x%x) failed connection " 2273 "list check: (x%x/x%x/%x)\n", 2274 bf_get(lpfc_fcf_record_fcf_index, 2275 new_fcf_record), 2276 bf_get(lpfc_fcf_record_fcf_avail, 2277 new_fcf_record), 2278 bf_get(lpfc_fcf_record_fcf_valid, 2279 new_fcf_record), 2280 bf_get(lpfc_fcf_record_fcf_sol, 2281 new_fcf_record)); 2282 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2283 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2284 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2285 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2286 phba->fcf.current_rec.fcf_indx) { 2287 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2288 "2862 FCF (x%x) matches property " 2289 "of in-use FCF (x%x)\n", 2290 bf_get(lpfc_fcf_record_fcf_index, 2291 new_fcf_record), 2292 phba->fcf.current_rec.fcf_indx); 2293 goto read_next_fcf; 2294 } 2295 /* 2296 * In case the current in-use FCF record becomes 2297 * invalid/unavailable during FCF discovery that 2298 * was not triggered by fast FCF failover process, 2299 * treat it as fast FCF failover. 2300 */ 2301 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2302 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2303 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2304 "2835 Invalid in-use FCF " 2305 "(x%x), enter FCF failover " 2306 "table scan.\n", 2307 phba->fcf.current_rec.fcf_indx); 2308 spin_lock_irq(&phba->hbalock); 2309 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2310 spin_unlock_irq(&phba->hbalock); 2311 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2312 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2313 LPFC_FCOE_FCF_GET_FIRST); 2314 return; 2315 } 2316 } 2317 goto read_next_fcf; 2318 } else { 2319 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2320 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2321 new_fcf_record); 2322 if (rc) 2323 goto read_next_fcf; 2324 } 2325 2326 /* 2327 * If this is not the first FCF discovery of the HBA, use last 2328 * FCF record for the discovery. The condition that a rescan 2329 * matches the in-use FCF record: fabric name, switch name, mac 2330 * address, and vlan_id. 2331 */ 2332 spin_lock_irq(&phba->hbalock); 2333 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2334 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2335 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2336 new_fcf_record, vlan_id)) { 2337 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2338 phba->fcf.current_rec.fcf_indx) { 2339 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2340 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2341 /* Stop FCF redisc wait timer */ 2342 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2343 phba); 2344 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2345 /* Fast failover, mark completed */ 2346 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2347 spin_unlock_irq(&phba->hbalock); 2348 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2349 "2836 New FCF matches in-use " 2350 "FCF (x%x), port_state:x%x, " 2351 "fc_flag:x%x\n", 2352 phba->fcf.current_rec.fcf_indx, 2353 phba->pport->port_state, 2354 phba->pport->fc_flag); 2355 goto out; 2356 } else 2357 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2358 "2863 New FCF (x%x) matches " 2359 "property of in-use FCF (x%x)\n", 2360 bf_get(lpfc_fcf_record_fcf_index, 2361 new_fcf_record), 2362 phba->fcf.current_rec.fcf_indx); 2363 } 2364 /* 2365 * Read next FCF record from HBA searching for the matching 2366 * with in-use record only if not during the fast failover 2367 * period. In case of fast failover period, it shall try to 2368 * determine whether the FCF record just read should be the 2369 * next candidate. 2370 */ 2371 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2372 spin_unlock_irq(&phba->hbalock); 2373 goto read_next_fcf; 2374 } 2375 } 2376 /* 2377 * Update on failover FCF record only if it's in FCF fast-failover 2378 * period; otherwise, update on current FCF record. 2379 */ 2380 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2381 fcf_rec = &phba->fcf.failover_rec; 2382 else 2383 fcf_rec = &phba->fcf.current_rec; 2384 2385 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2386 /* 2387 * If the driver FCF record does not have boot flag 2388 * set and new hba fcf record has boot flag set, use 2389 * the new hba fcf record. 2390 */ 2391 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2392 /* Choose this FCF record */ 2393 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2394 "2837 Update current FCF record " 2395 "(x%x) with new FCF record (x%x)\n", 2396 fcf_rec->fcf_indx, 2397 bf_get(lpfc_fcf_record_fcf_index, 2398 new_fcf_record)); 2399 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2400 addr_mode, vlan_id, BOOT_ENABLE); 2401 spin_unlock_irq(&phba->hbalock); 2402 goto read_next_fcf; 2403 } 2404 /* 2405 * If the driver FCF record has boot flag set and the 2406 * new hba FCF record does not have boot flag, read 2407 * the next FCF record. 2408 */ 2409 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2410 spin_unlock_irq(&phba->hbalock); 2411 goto read_next_fcf; 2412 } 2413 /* 2414 * If the new hba FCF record has lower priority value 2415 * than the driver FCF record, use the new record. 2416 */ 2417 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2418 /* Choose the new FCF record with lower priority */ 2419 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2420 "2838 Update current FCF record " 2421 "(x%x) with new FCF record (x%x)\n", 2422 fcf_rec->fcf_indx, 2423 bf_get(lpfc_fcf_record_fcf_index, 2424 new_fcf_record)); 2425 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2426 addr_mode, vlan_id, 0); 2427 /* Reset running random FCF selection count */ 2428 phba->fcf.eligible_fcf_cnt = 1; 2429 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2430 /* Update running random FCF selection count */ 2431 phba->fcf.eligible_fcf_cnt++; 2432 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2433 phba->fcf.eligible_fcf_cnt); 2434 if (select_new_fcf) { 2435 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2436 "2839 Update current FCF record " 2437 "(x%x) with new FCF record (x%x)\n", 2438 fcf_rec->fcf_indx, 2439 bf_get(lpfc_fcf_record_fcf_index, 2440 new_fcf_record)); 2441 /* Choose the new FCF by random selection */ 2442 __lpfc_update_fcf_record(phba, fcf_rec, 2443 new_fcf_record, 2444 addr_mode, vlan_id, 0); 2445 } 2446 } 2447 spin_unlock_irq(&phba->hbalock); 2448 goto read_next_fcf; 2449 } 2450 /* 2451 * This is the first suitable FCF record, choose this record for 2452 * initial best-fit FCF. 2453 */ 2454 if (fcf_rec) { 2455 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2456 "2840 Update initial FCF candidate " 2457 "with FCF (x%x)\n", 2458 bf_get(lpfc_fcf_record_fcf_index, 2459 new_fcf_record)); 2460 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2461 addr_mode, vlan_id, (boot_flag ? 2462 BOOT_ENABLE : 0)); 2463 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2464 /* Setup initial running random FCF selection count */ 2465 phba->fcf.eligible_fcf_cnt = 1; 2466 } 2467 spin_unlock_irq(&phba->hbalock); 2468 goto read_next_fcf; 2469 2470 read_next_fcf: 2471 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2472 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2473 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2474 /* 2475 * Case of FCF fast failover scan 2476 */ 2477 2478 /* 2479 * It has not found any suitable FCF record, cancel 2480 * FCF scan inprogress, and do nothing 2481 */ 2482 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2483 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2484 "2782 No suitable FCF found: " 2485 "(x%x/x%x)\n", 2486 phba->fcoe_eventtag_at_fcf_scan, 2487 bf_get(lpfc_fcf_record_fcf_index, 2488 new_fcf_record)); 2489 spin_lock_irq(&phba->hbalock); 2490 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2491 phba->hba_flag &= ~FCF_TS_INPROG; 2492 spin_unlock_irq(&phba->hbalock); 2493 /* Unregister in-use FCF and rescan */ 2494 lpfc_printf_log(phba, KERN_INFO, 2495 LOG_FIP, 2496 "2864 On devloss tmo " 2497 "unreg in-use FCF and " 2498 "rescan FCF table\n"); 2499 lpfc_unregister_fcf_rescan(phba); 2500 return; 2501 } 2502 /* 2503 * Let next new FCF event trigger fast failover 2504 */ 2505 phba->hba_flag &= ~FCF_TS_INPROG; 2506 spin_unlock_irq(&phba->hbalock); 2507 return; 2508 } 2509 /* 2510 * It has found a suitable FCF record that is not 2511 * the same as in-use FCF record, unregister the 2512 * in-use FCF record, replace the in-use FCF record 2513 * with the new FCF record, mark FCF fast failover 2514 * completed, and then start register the new FCF 2515 * record. 2516 */ 2517 2518 /* Unregister the current in-use FCF record */ 2519 lpfc_unregister_fcf(phba); 2520 2521 /* Replace in-use record with the new record */ 2522 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2523 "2842 Replace in-use FCF (x%x) " 2524 "with failover FCF (x%x)\n", 2525 phba->fcf.current_rec.fcf_indx, 2526 phba->fcf.failover_rec.fcf_indx); 2527 memcpy(&phba->fcf.current_rec, 2528 &phba->fcf.failover_rec, 2529 sizeof(struct lpfc_fcf_rec)); 2530 /* 2531 * Mark the fast FCF failover rediscovery completed 2532 * and the start of the first round of the roundrobin 2533 * FCF failover. 2534 */ 2535 spin_lock_irq(&phba->hbalock); 2536 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2537 spin_unlock_irq(&phba->hbalock); 2538 /* Register to the new FCF record */ 2539 lpfc_register_fcf(phba); 2540 } else { 2541 /* 2542 * In case of transaction period to fast FCF failover, 2543 * do nothing when search to the end of the FCF table. 2544 */ 2545 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2546 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2547 return; 2548 2549 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2550 phba->fcf.fcf_flag & FCF_IN_USE) { 2551 /* 2552 * In case the current in-use FCF record no 2553 * longer existed during FCF discovery that 2554 * was not triggered by fast FCF failover 2555 * process, treat it as fast FCF failover. 2556 */ 2557 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2558 "2841 In-use FCF record (x%x) " 2559 "not reported, entering fast " 2560 "FCF failover mode scanning.\n", 2561 phba->fcf.current_rec.fcf_indx); 2562 spin_lock_irq(&phba->hbalock); 2563 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2564 spin_unlock_irq(&phba->hbalock); 2565 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2566 LPFC_FCOE_FCF_GET_FIRST); 2567 return; 2568 } 2569 /* Register to the new FCF record */ 2570 lpfc_register_fcf(phba); 2571 } 2572 } else 2573 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2574 return; 2575 2576 out: 2577 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2578 lpfc_register_fcf(phba); 2579 2580 return; 2581 } 2582 2583 /** 2584 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2585 * @phba: pointer to lpfc hba data structure. 2586 * @mboxq: pointer to mailbox object. 2587 * 2588 * This is the callback function for FLOGI failure roundrobin FCF failover 2589 * read FCF record mailbox command from the eligible FCF record bmask for 2590 * performing the failover. If the FCF read back is not valid/available, it 2591 * fails through to retrying FLOGI to the currently registered FCF again. 2592 * Otherwise, if the FCF read back is valid and available, it will set the 2593 * newly read FCF record to the failover FCF record, unregister currently 2594 * registered FCF record, copy the failover FCF record to the current 2595 * FCF record, and then register the current FCF record before proceeding 2596 * to trying FLOGI on the new failover FCF. 2597 */ 2598 void 2599 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2600 { 2601 struct fcf_record *new_fcf_record; 2602 uint32_t boot_flag, addr_mode; 2603 uint16_t next_fcf_index, fcf_index; 2604 uint16_t current_fcf_index; 2605 uint16_t vlan_id; 2606 int rc; 2607 2608 /* If link state is not up, stop the roundrobin failover process */ 2609 if (phba->link_state < LPFC_LINK_UP) { 2610 spin_lock_irq(&phba->hbalock); 2611 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2612 phba->hba_flag &= ~FCF_RR_INPROG; 2613 spin_unlock_irq(&phba->hbalock); 2614 goto out; 2615 } 2616 2617 /* Parse the FCF record from the non-embedded mailbox command */ 2618 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2619 &next_fcf_index); 2620 if (!new_fcf_record) { 2621 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2622 "2766 Mailbox command READ_FCF_RECORD " 2623 "failed to retrieve a FCF record. " 2624 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2625 phba->fcf.fcf_flag); 2626 lpfc_unregister_fcf_rescan(phba); 2627 goto out; 2628 } 2629 2630 /* Get the needed parameters from FCF record */ 2631 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2632 &addr_mode, &vlan_id); 2633 2634 /* Log the FCF record information if turned on */ 2635 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2636 next_fcf_index); 2637 2638 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2639 if (!rc) { 2640 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2641 "2848 Remove ineligible FCF (x%x) from " 2642 "from roundrobin bmask\n", fcf_index); 2643 /* Clear roundrobin bmask bit for ineligible FCF */ 2644 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2645 /* Perform next round of roundrobin FCF failover */ 2646 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2647 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2648 if (rc) 2649 goto out; 2650 goto error_out; 2651 } 2652 2653 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2654 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2655 "2760 Perform FLOGI roundrobin FCF failover: " 2656 "FCF (x%x) back to FCF (x%x)\n", 2657 phba->fcf.current_rec.fcf_indx, fcf_index); 2658 /* Wait 500 ms before retrying FLOGI to current FCF */ 2659 msleep(500); 2660 lpfc_issue_init_vfi(phba->pport); 2661 goto out; 2662 } 2663 2664 /* Upload new FCF record to the failover FCF record */ 2665 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2666 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2667 phba->fcf.failover_rec.fcf_indx, fcf_index); 2668 spin_lock_irq(&phba->hbalock); 2669 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2670 new_fcf_record, addr_mode, vlan_id, 2671 (boot_flag ? BOOT_ENABLE : 0)); 2672 spin_unlock_irq(&phba->hbalock); 2673 2674 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2675 2676 /* Unregister the current in-use FCF record */ 2677 lpfc_unregister_fcf(phba); 2678 2679 /* Replace in-use record with the new record */ 2680 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2681 sizeof(struct lpfc_fcf_rec)); 2682 2683 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2684 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2685 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2686 2687 error_out: 2688 lpfc_register_fcf(phba); 2689 out: 2690 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2691 } 2692 2693 /** 2694 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2695 * @phba: pointer to lpfc hba data structure. 2696 * @mboxq: pointer to mailbox object. 2697 * 2698 * This is the callback function of read FCF record mailbox command for 2699 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2700 * failover when a new FCF event happened. If the FCF read back is 2701 * valid/available and it passes the connection list check, it updates 2702 * the bmask for the eligible FCF record for roundrobin failover. 2703 */ 2704 void 2705 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2706 { 2707 struct fcf_record *new_fcf_record; 2708 uint32_t boot_flag, addr_mode; 2709 uint16_t fcf_index, next_fcf_index; 2710 uint16_t vlan_id; 2711 int rc; 2712 2713 /* If link state is not up, no need to proceed */ 2714 if (phba->link_state < LPFC_LINK_UP) 2715 goto out; 2716 2717 /* If FCF discovery period is over, no need to proceed */ 2718 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2719 goto out; 2720 2721 /* Parse the FCF record from the non-embedded mailbox command */ 2722 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2723 &next_fcf_index); 2724 if (!new_fcf_record) { 2725 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2726 "2767 Mailbox command READ_FCF_RECORD " 2727 "failed to retrieve a FCF record.\n"); 2728 goto out; 2729 } 2730 2731 /* Check the connection list for eligibility */ 2732 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2733 &addr_mode, &vlan_id); 2734 2735 /* Log the FCF record information if turned on */ 2736 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2737 next_fcf_index); 2738 2739 if (!rc) 2740 goto out; 2741 2742 /* Update the eligible FCF record index bmask */ 2743 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2744 2745 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2746 2747 out: 2748 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2749 } 2750 2751 /** 2752 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2753 * @phba: pointer to lpfc hba data structure. 2754 * @mboxq: pointer to mailbox data structure. 2755 * 2756 * This function handles completion of init vfi mailbox command. 2757 */ 2758 static void 2759 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2760 { 2761 struct lpfc_vport *vport = mboxq->vport; 2762 2763 /* 2764 * VFI not supported on interface type 0, just do the flogi 2765 * Also continue if the VFI is in use - just use the same one. 2766 */ 2767 if (mboxq->u.mb.mbxStatus && 2768 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2769 LPFC_SLI_INTF_IF_TYPE_0) && 2770 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2771 lpfc_printf_vlog(vport, KERN_ERR, 2772 LOG_MBOX, 2773 "2891 Init VFI mailbox failed 0x%x\n", 2774 mboxq->u.mb.mbxStatus); 2775 mempool_free(mboxq, phba->mbox_mem_pool); 2776 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2777 return; 2778 } 2779 2780 lpfc_initial_flogi(vport); 2781 mempool_free(mboxq, phba->mbox_mem_pool); 2782 return; 2783 } 2784 2785 /** 2786 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2787 * @vport: pointer to lpfc_vport data structure. 2788 * 2789 * This function issue a init_vfi mailbox command to initialize the VFI and 2790 * VPI for the physical port. 2791 */ 2792 void 2793 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2794 { 2795 LPFC_MBOXQ_t *mboxq; 2796 int rc; 2797 struct lpfc_hba *phba = vport->phba; 2798 2799 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2800 if (!mboxq) { 2801 lpfc_printf_vlog(vport, KERN_ERR, 2802 LOG_MBOX, "2892 Failed to allocate " 2803 "init_vfi mailbox\n"); 2804 return; 2805 } 2806 lpfc_init_vfi(mboxq, vport); 2807 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2808 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2809 if (rc == MBX_NOT_FINISHED) { 2810 lpfc_printf_vlog(vport, KERN_ERR, 2811 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2812 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2813 } 2814 } 2815 2816 /** 2817 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2818 * @phba: pointer to lpfc hba data structure. 2819 * @mboxq: pointer to mailbox data structure. 2820 * 2821 * This function handles completion of init vpi mailbox command. 2822 */ 2823 void 2824 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2825 { 2826 struct lpfc_vport *vport = mboxq->vport; 2827 struct lpfc_nodelist *ndlp; 2828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2829 2830 if (mboxq->u.mb.mbxStatus) { 2831 lpfc_printf_vlog(vport, KERN_ERR, 2832 LOG_MBOX, 2833 "2609 Init VPI mailbox failed 0x%x\n", 2834 mboxq->u.mb.mbxStatus); 2835 mempool_free(mboxq, phba->mbox_mem_pool); 2836 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2837 return; 2838 } 2839 spin_lock_irq(shost->host_lock); 2840 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2841 spin_unlock_irq(shost->host_lock); 2842 2843 /* If this port is physical port or FDISC is done, do reg_vpi */ 2844 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2845 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2846 if (!ndlp) 2847 lpfc_printf_vlog(vport, KERN_ERR, 2848 LOG_DISCOVERY, 2849 "2731 Cannot find fabric " 2850 "controller node\n"); 2851 else 2852 lpfc_register_new_vport(phba, vport, ndlp); 2853 mempool_free(mboxq, phba->mbox_mem_pool); 2854 return; 2855 } 2856 2857 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2858 lpfc_initial_fdisc(vport); 2859 else { 2860 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2861 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2862 "2606 No NPIV Fabric support\n"); 2863 } 2864 mempool_free(mboxq, phba->mbox_mem_pool); 2865 return; 2866 } 2867 2868 /** 2869 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2870 * @vport: pointer to lpfc_vport data structure. 2871 * 2872 * This function issue a init_vpi mailbox command to initialize 2873 * VPI for the vport. 2874 */ 2875 void 2876 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2877 { 2878 LPFC_MBOXQ_t *mboxq; 2879 int rc, vpi; 2880 2881 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2882 vpi = lpfc_alloc_vpi(vport->phba); 2883 if (!vpi) { 2884 lpfc_printf_vlog(vport, KERN_ERR, 2885 LOG_MBOX, 2886 "3303 Failed to obtain vport vpi\n"); 2887 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2888 return; 2889 } 2890 vport->vpi = vpi; 2891 } 2892 2893 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2894 if (!mboxq) { 2895 lpfc_printf_vlog(vport, KERN_ERR, 2896 LOG_MBOX, "2607 Failed to allocate " 2897 "init_vpi mailbox\n"); 2898 return; 2899 } 2900 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2901 mboxq->vport = vport; 2902 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2903 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2904 if (rc == MBX_NOT_FINISHED) { 2905 lpfc_printf_vlog(vport, KERN_ERR, 2906 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2907 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2908 } 2909 } 2910 2911 /** 2912 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2913 * @phba: pointer to lpfc hba data structure. 2914 * 2915 * This function loops through the list of vports on the @phba and issues an 2916 * FDISC if possible. 2917 */ 2918 void 2919 lpfc_start_fdiscs(struct lpfc_hba *phba) 2920 { 2921 struct lpfc_vport **vports; 2922 int i; 2923 2924 vports = lpfc_create_vport_work_array(phba); 2925 if (vports != NULL) { 2926 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2927 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2928 continue; 2929 /* There are no vpi for this vport */ 2930 if (vports[i]->vpi > phba->max_vpi) { 2931 lpfc_vport_set_state(vports[i], 2932 FC_VPORT_FAILED); 2933 continue; 2934 } 2935 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2936 lpfc_vport_set_state(vports[i], 2937 FC_VPORT_LINKDOWN); 2938 continue; 2939 } 2940 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2941 lpfc_issue_init_vpi(vports[i]); 2942 continue; 2943 } 2944 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2945 lpfc_initial_fdisc(vports[i]); 2946 else { 2947 lpfc_vport_set_state(vports[i], 2948 FC_VPORT_NO_FABRIC_SUPP); 2949 lpfc_printf_vlog(vports[i], KERN_ERR, 2950 LOG_ELS, 2951 "0259 No NPIV " 2952 "Fabric support\n"); 2953 } 2954 } 2955 } 2956 lpfc_destroy_vport_work_array(phba, vports); 2957 } 2958 2959 void 2960 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2961 { 2962 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 2963 struct lpfc_vport *vport = mboxq->vport; 2964 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2965 2966 /* 2967 * VFI not supported for interface type 0, so ignore any mailbox 2968 * error (except VFI in use) and continue with the discovery. 2969 */ 2970 if (mboxq->u.mb.mbxStatus && 2971 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2972 LPFC_SLI_INTF_IF_TYPE_0) && 2973 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2974 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2975 "2018 REG_VFI mbxStatus error x%x " 2976 "HBA state x%x\n", 2977 mboxq->u.mb.mbxStatus, vport->port_state); 2978 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2979 /* FLOGI failed, use loop map to make discovery list */ 2980 lpfc_disc_list_loopmap(vport); 2981 /* Start discovery */ 2982 lpfc_disc_start(vport); 2983 goto out_free_mem; 2984 } 2985 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2986 goto out_free_mem; 2987 } 2988 2989 /* If the VFI is already registered, there is nothing else to do 2990 * Unless this was a VFI update and we are in PT2PT mode, then 2991 * we should drop through to set the port state to ready. 2992 */ 2993 if (vport->fc_flag & FC_VFI_REGISTERED) 2994 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2995 vport->fc_flag & FC_PT2PT)) 2996 goto out_free_mem; 2997 2998 /* The VPI is implicitly registered when the VFI is registered */ 2999 spin_lock_irq(shost->host_lock); 3000 vport->vpi_state |= LPFC_VPI_REGISTERED; 3001 vport->fc_flag |= FC_VFI_REGISTERED; 3002 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3003 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3004 spin_unlock_irq(shost->host_lock); 3005 3006 /* In case SLI4 FC loopback test, we are ready */ 3007 if ((phba->sli_rev == LPFC_SLI_REV4) && 3008 (phba->link_flag & LS_LOOPBACK_MODE)) { 3009 phba->link_state = LPFC_HBA_READY; 3010 goto out_free_mem; 3011 } 3012 3013 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3014 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3015 "alpacnt:%d LinkState:%x topology:%x\n", 3016 vport->port_state, vport->fc_flag, vport->fc_myDID, 3017 vport->phba->alpa_map[0], 3018 phba->link_state, phba->fc_topology); 3019 3020 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3021 /* 3022 * For private loop or for NPort pt2pt, 3023 * just start discovery and we are done. 3024 */ 3025 if ((vport->fc_flag & FC_PT2PT) || 3026 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3027 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3028 3029 /* Use loop map to make discovery list */ 3030 lpfc_disc_list_loopmap(vport); 3031 /* Start discovery */ 3032 if (vport->fc_flag & FC_PT2PT) 3033 vport->port_state = LPFC_VPORT_READY; 3034 else 3035 lpfc_disc_start(vport); 3036 } else { 3037 lpfc_start_fdiscs(phba); 3038 lpfc_do_scr_ns_plogi(phba, vport); 3039 } 3040 } 3041 3042 out_free_mem: 3043 mempool_free(mboxq, phba->mbox_mem_pool); 3044 if (dmabuf) { 3045 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3046 kfree(dmabuf); 3047 } 3048 return; 3049 } 3050 3051 static void 3052 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3053 { 3054 MAILBOX_t *mb = &pmb->u.mb; 3055 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3056 struct lpfc_vport *vport = pmb->vport; 3057 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3058 struct serv_parm *sp = &vport->fc_sparam; 3059 uint32_t ed_tov; 3060 3061 /* Check for error */ 3062 if (mb->mbxStatus) { 3063 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3064 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3065 "0319 READ_SPARAM mbxStatus error x%x " 3066 "hba state x%x>\n", 3067 mb->mbxStatus, vport->port_state); 3068 lpfc_linkdown(phba); 3069 goto out; 3070 } 3071 3072 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3073 sizeof (struct serv_parm)); 3074 3075 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3076 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3077 ed_tov = (ed_tov + 999999) / 1000000; 3078 3079 phba->fc_edtov = ed_tov; 3080 phba->fc_ratov = (2 * ed_tov) / 1000; 3081 if (phba->fc_ratov < FF_DEF_RATOV) { 3082 /* RA_TOV should be atleast 10sec for initial flogi */ 3083 phba->fc_ratov = FF_DEF_RATOV; 3084 } 3085 3086 lpfc_update_vport_wwn(vport); 3087 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3088 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3089 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3090 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3091 } 3092 3093 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3094 kfree(mp); 3095 mempool_free(pmb, phba->mbox_mem_pool); 3096 return; 3097 3098 out: 3099 pmb->ctx_buf = NULL; 3100 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3101 kfree(mp); 3102 lpfc_issue_clear_la(phba, vport); 3103 mempool_free(pmb, phba->mbox_mem_pool); 3104 return; 3105 } 3106 3107 static void 3108 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3109 { 3110 struct lpfc_vport *vport = phba->pport; 3111 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3112 struct Scsi_Host *shost; 3113 int i; 3114 struct lpfc_dmabuf *mp; 3115 int rc; 3116 struct fcf_record *fcf_record; 3117 uint32_t fc_flags = 0; 3118 unsigned long iflags; 3119 3120 spin_lock_irqsave(&phba->hbalock, iflags); 3121 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3122 3123 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3124 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3125 case LPFC_LINK_SPEED_1GHZ: 3126 case LPFC_LINK_SPEED_2GHZ: 3127 case LPFC_LINK_SPEED_4GHZ: 3128 case LPFC_LINK_SPEED_8GHZ: 3129 case LPFC_LINK_SPEED_10GHZ: 3130 case LPFC_LINK_SPEED_16GHZ: 3131 case LPFC_LINK_SPEED_32GHZ: 3132 case LPFC_LINK_SPEED_64GHZ: 3133 case LPFC_LINK_SPEED_128GHZ: 3134 break; 3135 default: 3136 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3137 break; 3138 } 3139 } 3140 3141 if (phba->fc_topology && 3142 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3143 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3144 "3314 Toplogy changed was 0x%x is 0x%x\n", 3145 phba->fc_topology, 3146 bf_get(lpfc_mbx_read_top_topology, la)); 3147 phba->fc_topology_changed = 1; 3148 } 3149 3150 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3151 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3152 3153 shost = lpfc_shost_from_vport(vport); 3154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3155 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3156 3157 /* if npiv is enabled and this adapter supports npiv log 3158 * a message that npiv is not supported in this topology 3159 */ 3160 if (phba->cfg_enable_npiv && phba->max_vpi) 3161 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3162 "1309 Link Up Event npiv not supported in loop " 3163 "topology\n"); 3164 /* Get Loop Map information */ 3165 if (bf_get(lpfc_mbx_read_top_il, la)) 3166 fc_flags |= FC_LBIT; 3167 3168 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3169 i = la->lilpBde64.tus.f.bdeSize; 3170 3171 if (i == 0) { 3172 phba->alpa_map[0] = 0; 3173 } else { 3174 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3175 int numalpa, j, k; 3176 union { 3177 uint8_t pamap[16]; 3178 struct { 3179 uint32_t wd1; 3180 uint32_t wd2; 3181 uint32_t wd3; 3182 uint32_t wd4; 3183 } pa; 3184 } un; 3185 numalpa = phba->alpa_map[0]; 3186 j = 0; 3187 while (j < numalpa) { 3188 memset(un.pamap, 0, 16); 3189 for (k = 1; j < numalpa; k++) { 3190 un.pamap[k - 1] = 3191 phba->alpa_map[j + 1]; 3192 j++; 3193 if (k == 16) 3194 break; 3195 } 3196 /* Link Up Event ALPA map */ 3197 lpfc_printf_log(phba, 3198 KERN_WARNING, 3199 LOG_LINK_EVENT, 3200 "1304 Link Up Event " 3201 "ALPA map Data: x%x " 3202 "x%x x%x x%x\n", 3203 un.pa.wd1, un.pa.wd2, 3204 un.pa.wd3, un.pa.wd4); 3205 } 3206 } 3207 } 3208 } else { 3209 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3210 if (phba->max_vpi && phba->cfg_enable_npiv && 3211 (phba->sli_rev >= LPFC_SLI_REV3)) 3212 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3213 } 3214 vport->fc_myDID = phba->fc_pref_DID; 3215 fc_flags |= FC_LBIT; 3216 } 3217 spin_unlock_irqrestore(&phba->hbalock, iflags); 3218 3219 if (fc_flags) { 3220 spin_lock_irqsave(shost->host_lock, iflags); 3221 vport->fc_flag |= fc_flags; 3222 spin_unlock_irqrestore(shost->host_lock, iflags); 3223 } 3224 3225 lpfc_linkup(phba); 3226 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3227 if (!sparam_mbox) 3228 goto out; 3229 3230 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3231 if (rc) { 3232 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3233 goto out; 3234 } 3235 sparam_mbox->vport = vport; 3236 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3237 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3238 if (rc == MBX_NOT_FINISHED) { 3239 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3240 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3241 kfree(mp); 3242 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3243 goto out; 3244 } 3245 3246 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3247 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3248 if (!cfglink_mbox) 3249 goto out; 3250 vport->port_state = LPFC_LOCAL_CFG_LINK; 3251 lpfc_config_link(phba, cfglink_mbox); 3252 cfglink_mbox->vport = vport; 3253 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3254 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3255 if (rc == MBX_NOT_FINISHED) { 3256 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3257 goto out; 3258 } 3259 } else { 3260 vport->port_state = LPFC_VPORT_UNKNOWN; 3261 /* 3262 * Add the driver's default FCF record at FCF index 0 now. This 3263 * is phase 1 implementation that support FCF index 0 and driver 3264 * defaults. 3265 */ 3266 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3267 fcf_record = kzalloc(sizeof(struct fcf_record), 3268 GFP_KERNEL); 3269 if (unlikely(!fcf_record)) { 3270 lpfc_printf_log(phba, KERN_ERR, 3271 LOG_MBOX | LOG_SLI, 3272 "2554 Could not allocate memory for " 3273 "fcf record\n"); 3274 rc = -ENODEV; 3275 goto out; 3276 } 3277 3278 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3279 LPFC_FCOE_FCF_DEF_INDEX); 3280 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3281 if (unlikely(rc)) { 3282 lpfc_printf_log(phba, KERN_ERR, 3283 LOG_MBOX | LOG_SLI, 3284 "2013 Could not manually add FCF " 3285 "record 0, status %d\n", rc); 3286 rc = -ENODEV; 3287 kfree(fcf_record); 3288 goto out; 3289 } 3290 kfree(fcf_record); 3291 } 3292 /* 3293 * The driver is expected to do FIP/FCF. Call the port 3294 * and get the FCF Table. 3295 */ 3296 spin_lock_irqsave(&phba->hbalock, iflags); 3297 if (phba->hba_flag & FCF_TS_INPROG) { 3298 spin_unlock_irqrestore(&phba->hbalock, iflags); 3299 return; 3300 } 3301 /* This is the initial FCF discovery scan */ 3302 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3303 spin_unlock_irqrestore(&phba->hbalock, iflags); 3304 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3305 "2778 Start FCF table scan at linkup\n"); 3306 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3307 LPFC_FCOE_FCF_GET_FIRST); 3308 if (rc) { 3309 spin_lock_irqsave(&phba->hbalock, iflags); 3310 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3311 spin_unlock_irqrestore(&phba->hbalock, iflags); 3312 goto out; 3313 } 3314 /* Reset FCF roundrobin bmask for new discovery */ 3315 lpfc_sli4_clear_fcf_rr_bmask(phba); 3316 } 3317 3318 return; 3319 out: 3320 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3321 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3322 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", 3323 vport->port_state, sparam_mbox, cfglink_mbox); 3324 lpfc_issue_clear_la(phba, vport); 3325 return; 3326 } 3327 3328 static void 3329 lpfc_enable_la(struct lpfc_hba *phba) 3330 { 3331 uint32_t control; 3332 struct lpfc_sli *psli = &phba->sli; 3333 spin_lock_irq(&phba->hbalock); 3334 psli->sli_flag |= LPFC_PROCESS_LA; 3335 if (phba->sli_rev <= LPFC_SLI_REV3) { 3336 control = readl(phba->HCregaddr); 3337 control |= HC_LAINT_ENA; 3338 writel(control, phba->HCregaddr); 3339 readl(phba->HCregaddr); /* flush */ 3340 } 3341 spin_unlock_irq(&phba->hbalock); 3342 } 3343 3344 static void 3345 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3346 { 3347 lpfc_linkdown(phba); 3348 lpfc_enable_la(phba); 3349 lpfc_unregister_unused_fcf(phba); 3350 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3351 } 3352 3353 3354 /* 3355 * This routine handles processing a READ_TOPOLOGY mailbox 3356 * command upon completion. It is setup in the LPFC_MBOXQ 3357 * as the completion routine when the command is 3358 * handed off to the SLI layer. SLI4 only. 3359 */ 3360 void 3361 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3362 { 3363 struct lpfc_vport *vport = pmb->vport; 3364 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3365 struct lpfc_mbx_read_top *la; 3366 struct lpfc_sli_ring *pring; 3367 MAILBOX_t *mb = &pmb->u.mb; 3368 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3369 uint8_t attn_type; 3370 unsigned long iflags; 3371 3372 /* Unblock ELS traffic */ 3373 pring = lpfc_phba_elsring(phba); 3374 if (pring) 3375 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3376 3377 /* Check for error */ 3378 if (mb->mbxStatus) { 3379 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3380 "1307 READ_LA mbox error x%x state x%x\n", 3381 mb->mbxStatus, vport->port_state); 3382 lpfc_mbx_issue_link_down(phba); 3383 phba->link_state = LPFC_HBA_ERROR; 3384 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3385 } 3386 3387 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3388 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3389 3390 memcpy(&phba->alpa_map[0], mp->virt, 128); 3391 3392 spin_lock_irqsave(shost->host_lock, iflags); 3393 if (bf_get(lpfc_mbx_read_top_pb, la)) 3394 vport->fc_flag |= FC_BYPASSED_MODE; 3395 else 3396 vport->fc_flag &= ~FC_BYPASSED_MODE; 3397 spin_unlock_irqrestore(shost->host_lock, iflags); 3398 3399 if (phba->fc_eventTag <= la->eventTag) { 3400 phba->fc_stat.LinkMultiEvent++; 3401 if (attn_type == LPFC_ATT_LINK_UP) 3402 if (phba->fc_eventTag != 0) 3403 lpfc_linkdown(phba); 3404 } 3405 3406 phba->fc_eventTag = la->eventTag; 3407 if (phba->sli_rev < LPFC_SLI_REV4) { 3408 spin_lock_irqsave(&phba->hbalock, iflags); 3409 if (bf_get(lpfc_mbx_read_top_mm, la)) 3410 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3411 else 3412 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3413 spin_unlock_irqrestore(&phba->hbalock, iflags); 3414 } 3415 3416 phba->link_events++; 3417 if ((attn_type == LPFC_ATT_LINK_UP) && 3418 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3419 phba->fc_stat.LinkUp++; 3420 if (phba->link_flag & LS_LOOPBACK_MODE) { 3421 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3422 "1306 Link Up Event in loop back mode " 3423 "x%x received Data: x%x x%x x%x x%x\n", 3424 la->eventTag, phba->fc_eventTag, 3425 bf_get(lpfc_mbx_read_top_alpa_granted, 3426 la), 3427 bf_get(lpfc_mbx_read_top_link_spd, la), 3428 phba->alpa_map[0]); 3429 } else { 3430 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3431 "1303 Link Up Event x%x received " 3432 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3433 la->eventTag, phba->fc_eventTag, 3434 bf_get(lpfc_mbx_read_top_alpa_granted, 3435 la), 3436 bf_get(lpfc_mbx_read_top_link_spd, la), 3437 phba->alpa_map[0], 3438 bf_get(lpfc_mbx_read_top_mm, la), 3439 bf_get(lpfc_mbx_read_top_fa, la), 3440 phba->wait_4_mlo_maint_flg); 3441 } 3442 lpfc_mbx_process_link_up(phba, la); 3443 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3444 attn_type == LPFC_ATT_UNEXP_WWPN) { 3445 phba->fc_stat.LinkDown++; 3446 if (phba->link_flag & LS_LOOPBACK_MODE) 3447 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3448 "1308 Link Down Event in loop back mode " 3449 "x%x received " 3450 "Data: x%x x%x x%x\n", 3451 la->eventTag, phba->fc_eventTag, 3452 phba->pport->port_state, vport->fc_flag); 3453 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3454 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3455 "1313 Link Down Unexpected FA WWPN Event x%x " 3456 "received Data: x%x x%x x%x x%x x%x\n", 3457 la->eventTag, phba->fc_eventTag, 3458 phba->pport->port_state, vport->fc_flag, 3459 bf_get(lpfc_mbx_read_top_mm, la), 3460 bf_get(lpfc_mbx_read_top_fa, la)); 3461 else 3462 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3463 "1305 Link Down Event x%x received " 3464 "Data: x%x x%x x%x x%x x%x\n", 3465 la->eventTag, phba->fc_eventTag, 3466 phba->pport->port_state, vport->fc_flag, 3467 bf_get(lpfc_mbx_read_top_mm, la), 3468 bf_get(lpfc_mbx_read_top_fa, la)); 3469 lpfc_mbx_issue_link_down(phba); 3470 } 3471 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3472 attn_type == LPFC_ATT_LINK_UP) { 3473 if (phba->link_state != LPFC_LINK_DOWN) { 3474 phba->fc_stat.LinkDown++; 3475 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3476 "1312 Link Down Event x%x received " 3477 "Data: x%x x%x x%x\n", 3478 la->eventTag, phba->fc_eventTag, 3479 phba->pport->port_state, vport->fc_flag); 3480 lpfc_mbx_issue_link_down(phba); 3481 } else 3482 lpfc_enable_la(phba); 3483 3484 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3485 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3486 "Data: x%x x%x x%x\n", 3487 la->eventTag, phba->fc_eventTag, 3488 phba->pport->port_state, vport->fc_flag); 3489 /* 3490 * The cmnd that triggered this will be waiting for this 3491 * signal. 3492 */ 3493 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3494 if (phba->wait_4_mlo_maint_flg) { 3495 phba->wait_4_mlo_maint_flg = 0; 3496 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3497 } 3498 } 3499 3500 if ((phba->sli_rev < LPFC_SLI_REV4) && 3501 bf_get(lpfc_mbx_read_top_fa, la)) { 3502 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3503 lpfc_issue_clear_la(phba, vport); 3504 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3505 "1311 fa %d\n", 3506 bf_get(lpfc_mbx_read_top_fa, la)); 3507 } 3508 3509 lpfc_mbx_cmpl_read_topology_free_mbuf: 3510 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3511 kfree(mp); 3512 mempool_free(pmb, phba->mbox_mem_pool); 3513 return; 3514 } 3515 3516 /* 3517 * This routine handles processing a REG_LOGIN mailbox 3518 * command upon completion. It is setup in the LPFC_MBOXQ 3519 * as the completion routine when the command is 3520 * handed off to the SLI layer. 3521 */ 3522 void 3523 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3524 { 3525 struct lpfc_vport *vport = pmb->vport; 3526 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3527 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3528 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3529 3530 pmb->ctx_buf = NULL; 3531 pmb->ctx_ndlp = NULL; 3532 3533 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3534 "0002 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 3535 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3536 kref_read(&ndlp->kref), 3537 ndlp->nlp_usg_map, ndlp); 3538 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3539 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3540 3541 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3542 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3543 /* We rcvd a rscn after issuing this 3544 * mbox reg login, we may have cycled 3545 * back through the state and be 3546 * back at reg login state so this 3547 * mbox needs to be ignored becase 3548 * there is another reg login in 3549 * process. 3550 */ 3551 spin_lock_irq(shost->host_lock); 3552 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3553 spin_unlock_irq(shost->host_lock); 3554 3555 /* 3556 * We cannot leave the RPI registered because 3557 * if we go thru discovery again for this ndlp 3558 * a subsequent REG_RPI will fail. 3559 */ 3560 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3561 lpfc_unreg_rpi(vport, ndlp); 3562 } 3563 3564 /* Call state machine */ 3565 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3566 3567 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3568 kfree(mp); 3569 mempool_free(pmb, phba->mbox_mem_pool); 3570 /* decrement the node reference count held for this callback 3571 * function. 3572 */ 3573 lpfc_nlp_put(ndlp); 3574 3575 return; 3576 } 3577 3578 static void 3579 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3580 { 3581 MAILBOX_t *mb = &pmb->u.mb; 3582 struct lpfc_vport *vport = pmb->vport; 3583 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3584 3585 switch (mb->mbxStatus) { 3586 case 0x0011: 3587 case 0x0020: 3588 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3589 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3590 mb->mbxStatus); 3591 break; 3592 /* If VPI is busy, reset the HBA */ 3593 case 0x9700: 3594 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3595 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3596 vport->vpi, mb->mbxStatus); 3597 if (!(phba->pport->load_flag & FC_UNLOADING)) 3598 lpfc_workq_post_event(phba, NULL, NULL, 3599 LPFC_EVT_RESET_HBA); 3600 } 3601 spin_lock_irq(shost->host_lock); 3602 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3603 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3604 spin_unlock_irq(shost->host_lock); 3605 vport->unreg_vpi_cmpl = VPORT_OK; 3606 mempool_free(pmb, phba->mbox_mem_pool); 3607 lpfc_cleanup_vports_rrqs(vport, NULL); 3608 /* 3609 * This shost reference might have been taken at the beginning of 3610 * lpfc_vport_delete() 3611 */ 3612 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3613 scsi_host_put(shost); 3614 } 3615 3616 int 3617 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3618 { 3619 struct lpfc_hba *phba = vport->phba; 3620 LPFC_MBOXQ_t *mbox; 3621 int rc; 3622 3623 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3624 if (!mbox) 3625 return 1; 3626 3627 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3628 mbox->vport = vport; 3629 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3630 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3631 if (rc == MBX_NOT_FINISHED) { 3632 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3633 "1800 Could not issue unreg_vpi\n"); 3634 mempool_free(mbox, phba->mbox_mem_pool); 3635 vport->unreg_vpi_cmpl = VPORT_ERROR; 3636 return rc; 3637 } 3638 return 0; 3639 } 3640 3641 static void 3642 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3643 { 3644 struct lpfc_vport *vport = pmb->vport; 3645 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3646 MAILBOX_t *mb = &pmb->u.mb; 3647 3648 switch (mb->mbxStatus) { 3649 case 0x0011: 3650 case 0x9601: 3651 case 0x9602: 3652 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3653 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3654 mb->mbxStatus); 3655 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3656 spin_lock_irq(shost->host_lock); 3657 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3658 spin_unlock_irq(shost->host_lock); 3659 vport->fc_myDID = 0; 3660 3661 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3662 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3663 if (phba->nvmet_support) 3664 lpfc_nvmet_update_targetport(phba); 3665 else 3666 lpfc_nvme_update_localport(vport); 3667 } 3668 goto out; 3669 } 3670 3671 spin_lock_irq(shost->host_lock); 3672 vport->vpi_state |= LPFC_VPI_REGISTERED; 3673 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3674 spin_unlock_irq(shost->host_lock); 3675 vport->num_disc_nodes = 0; 3676 /* go thru NPR list and issue ELS PLOGIs */ 3677 if (vport->fc_npr_cnt) 3678 lpfc_els_disc_plogi(vport); 3679 3680 if (!vport->num_disc_nodes) { 3681 spin_lock_irq(shost->host_lock); 3682 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3683 spin_unlock_irq(shost->host_lock); 3684 lpfc_can_disctmo(vport); 3685 } 3686 vport->port_state = LPFC_VPORT_READY; 3687 3688 out: 3689 mempool_free(pmb, phba->mbox_mem_pool); 3690 return; 3691 } 3692 3693 /** 3694 * lpfc_create_static_vport - Read HBA config region to create static vports. 3695 * @phba: pointer to lpfc hba data structure. 3696 * 3697 * This routine issue a DUMP mailbox command for config region 22 to get 3698 * the list of static vports to be created. The function create vports 3699 * based on the information returned from the HBA. 3700 **/ 3701 void 3702 lpfc_create_static_vport(struct lpfc_hba *phba) 3703 { 3704 LPFC_MBOXQ_t *pmb = NULL; 3705 MAILBOX_t *mb; 3706 struct static_vport_info *vport_info; 3707 int mbx_wait_rc = 0, i; 3708 struct fc_vport_identifiers vport_id; 3709 struct fc_vport *new_fc_vport; 3710 struct Scsi_Host *shost; 3711 struct lpfc_vport *vport; 3712 uint16_t offset = 0; 3713 uint8_t *vport_buff; 3714 struct lpfc_dmabuf *mp; 3715 uint32_t byte_count = 0; 3716 3717 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3718 if (!pmb) { 3719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3720 "0542 lpfc_create_static_vport failed to" 3721 " allocate mailbox memory\n"); 3722 return; 3723 } 3724 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3725 mb = &pmb->u.mb; 3726 3727 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3728 if (!vport_info) { 3729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3730 "0543 lpfc_create_static_vport failed to" 3731 " allocate vport_info\n"); 3732 mempool_free(pmb, phba->mbox_mem_pool); 3733 return; 3734 } 3735 3736 vport_buff = (uint8_t *) vport_info; 3737 do { 3738 /* free dma buffer from previous round */ 3739 if (pmb->ctx_buf) { 3740 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3741 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3742 kfree(mp); 3743 } 3744 if (lpfc_dump_static_vport(phba, pmb, offset)) 3745 goto out; 3746 3747 pmb->vport = phba->pport; 3748 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3749 LPFC_MBOX_TMO); 3750 3751 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3752 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3753 "0544 lpfc_create_static_vport failed to" 3754 " issue dump mailbox command ret 0x%x " 3755 "status 0x%x\n", 3756 mbx_wait_rc, mb->mbxStatus); 3757 goto out; 3758 } 3759 3760 if (phba->sli_rev == LPFC_SLI_REV4) { 3761 byte_count = pmb->u.mqe.un.mb_words[5]; 3762 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3763 if (byte_count > sizeof(struct static_vport_info) - 3764 offset) 3765 byte_count = sizeof(struct static_vport_info) 3766 - offset; 3767 memcpy(vport_buff + offset, mp->virt, byte_count); 3768 offset += byte_count; 3769 } else { 3770 if (mb->un.varDmp.word_cnt > 3771 sizeof(struct static_vport_info) - offset) 3772 mb->un.varDmp.word_cnt = 3773 sizeof(struct static_vport_info) 3774 - offset; 3775 byte_count = mb->un.varDmp.word_cnt; 3776 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3777 vport_buff + offset, 3778 byte_count); 3779 3780 offset += byte_count; 3781 } 3782 3783 } while (byte_count && 3784 offset < sizeof(struct static_vport_info)); 3785 3786 3787 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3788 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3789 != VPORT_INFO_REV)) { 3790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3791 "0545 lpfc_create_static_vport bad" 3792 " information header 0x%x 0x%x\n", 3793 le32_to_cpu(vport_info->signature), 3794 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3795 3796 goto out; 3797 } 3798 3799 shost = lpfc_shost_from_vport(phba->pport); 3800 3801 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3802 memset(&vport_id, 0, sizeof(vport_id)); 3803 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3804 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3805 if (!vport_id.port_name || !vport_id.node_name) 3806 continue; 3807 3808 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3809 vport_id.vport_type = FC_PORTTYPE_NPIV; 3810 vport_id.disable = false; 3811 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3812 3813 if (!new_fc_vport) { 3814 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3815 "0546 lpfc_create_static_vport failed to" 3816 " create vport\n"); 3817 continue; 3818 } 3819 3820 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3821 vport->vport_flag |= STATIC_VPORT; 3822 } 3823 3824 out: 3825 kfree(vport_info); 3826 if (mbx_wait_rc != MBX_TIMEOUT) { 3827 if (pmb->ctx_buf) { 3828 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3829 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3830 kfree(mp); 3831 } 3832 mempool_free(pmb, phba->mbox_mem_pool); 3833 } 3834 3835 return; 3836 } 3837 3838 /* 3839 * This routine handles processing a Fabric REG_LOGIN mailbox 3840 * command upon completion. It is setup in the LPFC_MBOXQ 3841 * as the completion routine when the command is 3842 * handed off to the SLI layer. 3843 */ 3844 void 3845 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3846 { 3847 struct lpfc_vport *vport = pmb->vport; 3848 MAILBOX_t *mb = &pmb->u.mb; 3849 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3850 struct lpfc_nodelist *ndlp; 3851 struct Scsi_Host *shost; 3852 3853 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3854 pmb->ctx_ndlp = NULL; 3855 pmb->ctx_buf = NULL; 3856 3857 if (mb->mbxStatus) { 3858 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3859 "0258 Register Fabric login error: 0x%x\n", 3860 mb->mbxStatus); 3861 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3862 kfree(mp); 3863 mempool_free(pmb, phba->mbox_mem_pool); 3864 3865 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3866 /* FLOGI failed, use loop map to make discovery list */ 3867 lpfc_disc_list_loopmap(vport); 3868 3869 /* Start discovery */ 3870 lpfc_disc_start(vport); 3871 /* Decrement the reference count to ndlp after the 3872 * reference to the ndlp are done. 3873 */ 3874 lpfc_nlp_put(ndlp); 3875 return; 3876 } 3877 3878 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3879 /* Decrement the reference count to ndlp after the reference 3880 * to the ndlp are done. 3881 */ 3882 lpfc_nlp_put(ndlp); 3883 return; 3884 } 3885 3886 if (phba->sli_rev < LPFC_SLI_REV4) 3887 ndlp->nlp_rpi = mb->un.varWords[0]; 3888 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3889 ndlp->nlp_type |= NLP_FABRIC; 3890 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3891 3892 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3893 /* when physical port receive logo donot start 3894 * vport discovery */ 3895 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3896 lpfc_start_fdiscs(phba); 3897 else { 3898 shost = lpfc_shost_from_vport(vport); 3899 spin_lock_irq(shost->host_lock); 3900 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3901 spin_unlock_irq(shost->host_lock); 3902 } 3903 lpfc_do_scr_ns_plogi(phba, vport); 3904 } 3905 3906 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3907 kfree(mp); 3908 mempool_free(pmb, phba->mbox_mem_pool); 3909 3910 /* Drop the reference count from the mbox at the end after 3911 * all the current reference to the ndlp have been done. 3912 */ 3913 lpfc_nlp_put(ndlp); 3914 return; 3915 } 3916 3917 /* 3918 * This routine will issue a GID_FT for each FC4 Type supported 3919 * by the driver. ALL GID_FTs must complete before discovery is started. 3920 */ 3921 int 3922 lpfc_issue_gidft(struct lpfc_vport *vport) 3923 { 3924 /* Good status, issue CT Request to NameServer */ 3925 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3926 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3927 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3928 /* Cannot issue NameServer FCP Query, so finish up 3929 * discovery 3930 */ 3931 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3932 "0604 %s FC TYPE %x %s\n", 3933 "Failed to issue GID_FT to ", 3934 FC_TYPE_FCP, 3935 "Finishing discovery."); 3936 return 0; 3937 } 3938 vport->gidft_inp++; 3939 } 3940 3941 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3942 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3943 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3944 /* Cannot issue NameServer NVME Query, so finish up 3945 * discovery 3946 */ 3947 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3948 "0605 %s FC_TYPE %x %s %d\n", 3949 "Failed to issue GID_FT to ", 3950 FC_TYPE_NVME, 3951 "Finishing discovery: gidftinp ", 3952 vport->gidft_inp); 3953 if (vport->gidft_inp == 0) 3954 return 0; 3955 } else 3956 vport->gidft_inp++; 3957 } 3958 return vport->gidft_inp; 3959 } 3960 3961 /** 3962 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 3963 * @vport: The virtual port for which this call is being executed. 3964 * 3965 * This routine will issue a GID_PT to get a list of all N_Ports 3966 * 3967 * Return value : 3968 * 0 - Failure to issue a GID_PT 3969 * 1 - GID_PT issued 3970 **/ 3971 int 3972 lpfc_issue_gidpt(struct lpfc_vport *vport) 3973 { 3974 /* Good status, issue CT Request to NameServer */ 3975 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 3976 /* Cannot issue NameServer FCP Query, so finish up 3977 * discovery 3978 */ 3979 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3980 "0606 %s Port TYPE %x %s\n", 3981 "Failed to issue GID_PT to ", 3982 GID_PT_N_PORT, 3983 "Finishing discovery."); 3984 return 0; 3985 } 3986 vport->gidft_inp++; 3987 return 1; 3988 } 3989 3990 /* 3991 * This routine handles processing a NameServer REG_LOGIN mailbox 3992 * command upon completion. It is setup in the LPFC_MBOXQ 3993 * as the completion routine when the command is 3994 * handed off to the SLI layer. 3995 */ 3996 void 3997 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3998 { 3999 MAILBOX_t *mb = &pmb->u.mb; 4000 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4001 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4002 struct lpfc_vport *vport = pmb->vport; 4003 4004 pmb->ctx_buf = NULL; 4005 pmb->ctx_ndlp = NULL; 4006 vport->gidft_inp = 0; 4007 4008 if (mb->mbxStatus) { 4009 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4010 "0260 Register NameServer error: 0x%x\n", 4011 mb->mbxStatus); 4012 4013 out: 4014 /* decrement the node reference count held for this 4015 * callback function. 4016 */ 4017 lpfc_nlp_put(ndlp); 4018 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4019 kfree(mp); 4020 mempool_free(pmb, phba->mbox_mem_pool); 4021 4022 /* If no other thread is using the ndlp, free it */ 4023 lpfc_nlp_not_used(ndlp); 4024 4025 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4026 /* 4027 * RegLogin failed, use loop map to make discovery 4028 * list 4029 */ 4030 lpfc_disc_list_loopmap(vport); 4031 4032 /* Start discovery */ 4033 lpfc_disc_start(vport); 4034 return; 4035 } 4036 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4037 return; 4038 } 4039 4040 if (phba->sli_rev < LPFC_SLI_REV4) 4041 ndlp->nlp_rpi = mb->un.varWords[0]; 4042 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4043 ndlp->nlp_type |= NLP_FABRIC; 4044 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4045 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 4046 "0003 rpi:%x DID:%x flg:%x %d map%x x%px\n", 4047 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4048 kref_read(&ndlp->kref), 4049 ndlp->nlp_usg_map, ndlp); 4050 4051 if (vport->port_state < LPFC_VPORT_READY) { 4052 /* Link up discovery requires Fabric registration. */ 4053 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4054 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4055 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4056 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4057 4058 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4059 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4060 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4061 4062 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4063 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4064 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4065 FC_TYPE_NVME); 4066 4067 /* Issue SCR just before NameServer GID_FT Query */ 4068 lpfc_issue_els_scr(vport, SCR_DID, 0); 4069 } 4070 4071 vport->fc_ns_retry = 0; 4072 if (lpfc_issue_gidft(vport) == 0) 4073 goto out; 4074 4075 /* 4076 * At this point in time we may need to wait for multiple 4077 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4078 * 4079 * decrement the node reference count held for this 4080 * callback function. 4081 */ 4082 lpfc_nlp_put(ndlp); 4083 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4084 kfree(mp); 4085 mempool_free(pmb, phba->mbox_mem_pool); 4086 4087 return; 4088 } 4089 4090 static void 4091 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4092 { 4093 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4094 struct fc_rport *rport; 4095 struct lpfc_rport_data *rdata; 4096 struct fc_rport_identifiers rport_ids; 4097 struct lpfc_hba *phba = vport->phba; 4098 4099 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4100 return; 4101 4102 /* Remote port has reappeared. Re-register w/ FC transport */ 4103 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4104 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4105 rport_ids.port_id = ndlp->nlp_DID; 4106 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4107 4108 /* 4109 * We leave our node pointer in rport->dd_data when we unregister a 4110 * FCP target port. But fc_remote_port_add zeros the space to which 4111 * rport->dd_data points. So, if we're reusing a previously 4112 * registered port, drop the reference that we took the last time we 4113 * registered the port. 4114 */ 4115 rport = ndlp->rport; 4116 if (rport) { 4117 rdata = rport->dd_data; 4118 /* break the link before dropping the ref */ 4119 ndlp->rport = NULL; 4120 if (rdata) { 4121 if (rdata->pnode == ndlp) 4122 lpfc_nlp_put(ndlp); 4123 rdata->pnode = NULL; 4124 } 4125 /* drop reference for earlier registeration */ 4126 put_device(&rport->dev); 4127 } 4128 4129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4130 "rport add: did:x%x flg:x%x type x%x", 4131 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4132 4133 /* Don't add the remote port if unloading. */ 4134 if (vport->load_flag & FC_UNLOADING) 4135 return; 4136 4137 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4138 if (!rport || !get_device(&rport->dev)) { 4139 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4140 "Warning: fc_remote_port_add failed\n"); 4141 return; 4142 } 4143 4144 /* initialize static port data */ 4145 rport->maxframe_size = ndlp->nlp_maxframe; 4146 rport->supported_classes = ndlp->nlp_class_sup; 4147 rdata = rport->dd_data; 4148 rdata->pnode = lpfc_nlp_get(ndlp); 4149 4150 if (ndlp->nlp_type & NLP_FCP_TARGET) 4151 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; 4152 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4153 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; 4154 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 4155 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; 4156 if (ndlp->nlp_type & NLP_NVME_TARGET) 4157 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; 4158 if (ndlp->nlp_type & NLP_NVME_DISCOVERY) 4159 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; 4160 4161 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4162 fc_remote_port_rolechg(rport, rport_ids.roles); 4163 4164 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4165 "3183 rport register x%06x, rport x%px role x%x\n", 4166 ndlp->nlp_DID, rport, rport_ids.roles); 4167 4168 if ((rport->scsi_target_id != -1) && 4169 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4170 ndlp->nlp_sid = rport->scsi_target_id; 4171 } 4172 return; 4173 } 4174 4175 static void 4176 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4177 { 4178 struct fc_rport *rport = ndlp->rport; 4179 struct lpfc_vport *vport = ndlp->vport; 4180 4181 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4182 return; 4183 4184 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4185 "rport delete: did:x%x flg:x%x type x%x", 4186 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4187 4188 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4189 "3184 rport unregister x%06x, rport x%px\n", 4190 ndlp->nlp_DID, rport); 4191 4192 fc_remote_port_delete(rport); 4193 4194 return; 4195 } 4196 4197 static void 4198 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4199 { 4200 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4201 unsigned long iflags; 4202 4203 spin_lock_irqsave(shost->host_lock, iflags); 4204 switch (state) { 4205 case NLP_STE_UNUSED_NODE: 4206 vport->fc_unused_cnt += count; 4207 break; 4208 case NLP_STE_PLOGI_ISSUE: 4209 vport->fc_plogi_cnt += count; 4210 break; 4211 case NLP_STE_ADISC_ISSUE: 4212 vport->fc_adisc_cnt += count; 4213 break; 4214 case NLP_STE_REG_LOGIN_ISSUE: 4215 vport->fc_reglogin_cnt += count; 4216 break; 4217 case NLP_STE_PRLI_ISSUE: 4218 vport->fc_prli_cnt += count; 4219 break; 4220 case NLP_STE_UNMAPPED_NODE: 4221 vport->fc_unmap_cnt += count; 4222 break; 4223 case NLP_STE_MAPPED_NODE: 4224 vport->fc_map_cnt += count; 4225 break; 4226 case NLP_STE_NPR_NODE: 4227 if (vport->fc_npr_cnt == 0 && count == -1) 4228 vport->fc_npr_cnt = 0; 4229 else 4230 vport->fc_npr_cnt += count; 4231 break; 4232 } 4233 spin_unlock_irqrestore(shost->host_lock, iflags); 4234 } 4235 4236 static void 4237 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4238 int old_state, int new_state) 4239 { 4240 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4241 4242 if (new_state == NLP_STE_UNMAPPED_NODE) { 4243 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4244 ndlp->nlp_type |= NLP_FC_NODE; 4245 } 4246 if (new_state == NLP_STE_MAPPED_NODE) 4247 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4248 if (new_state == NLP_STE_NPR_NODE) 4249 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4250 4251 /* FCP and NVME Transport interface */ 4252 if ((old_state == NLP_STE_MAPPED_NODE || 4253 old_state == NLP_STE_UNMAPPED_NODE)) { 4254 if (ndlp->rport) { 4255 vport->phba->nport_event_cnt++; 4256 lpfc_unregister_remote_port(ndlp); 4257 } 4258 4259 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4260 vport->phba->nport_event_cnt++; 4261 if (vport->phba->nvmet_support == 0) { 4262 /* Start devloss if target. */ 4263 if (ndlp->nlp_type & NLP_NVME_TARGET) 4264 lpfc_nvme_unregister_port(vport, ndlp); 4265 } else { 4266 /* NVMET has no upcall. */ 4267 lpfc_nlp_put(ndlp); 4268 } 4269 } 4270 } 4271 4272 /* FCP and NVME Transport interfaces */ 4273 4274 if (new_state == NLP_STE_MAPPED_NODE || 4275 new_state == NLP_STE_UNMAPPED_NODE) { 4276 if (ndlp->nlp_fc4_type || 4277 ndlp->nlp_DID == Fabric_DID || 4278 ndlp->nlp_DID == NameServer_DID || 4279 ndlp->nlp_DID == FDMI_DID) { 4280 vport->phba->nport_event_cnt++; 4281 /* 4282 * Tell the fc transport about the port, if we haven't 4283 * already. If we have, and it's a scsi entity, be 4284 */ 4285 lpfc_register_remote_port(vport, ndlp); 4286 } 4287 /* Notify the NVME transport of this new rport. */ 4288 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4289 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4290 if (vport->phba->nvmet_support == 0) { 4291 /* Register this rport with the transport. 4292 * Only NVME Target Rports are registered with 4293 * the transport. 4294 */ 4295 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4296 vport->phba->nport_event_cnt++; 4297 lpfc_nvme_register_port(vport, ndlp); 4298 } 4299 } else { 4300 /* Just take an NDLP ref count since the 4301 * target does not register rports. 4302 */ 4303 lpfc_nlp_get(ndlp); 4304 } 4305 } 4306 } 4307 4308 if ((new_state == NLP_STE_MAPPED_NODE) && 4309 (vport->stat_data_enabled)) { 4310 /* 4311 * A new target is discovered, if there is no buffer for 4312 * statistical data collection allocate buffer. 4313 */ 4314 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4315 sizeof(struct lpfc_scsicmd_bkt), 4316 GFP_KERNEL); 4317 4318 if (!ndlp->lat_data) 4319 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4320 "0286 lpfc_nlp_state_cleanup failed to " 4321 "allocate statistical data buffer DID " 4322 "0x%x\n", ndlp->nlp_DID); 4323 } 4324 /* 4325 * If the node just added to Mapped list was an FCP target, 4326 * but the remote port registration failed or assigned a target 4327 * id outside the presentable range - move the node to the 4328 * Unmapped List. 4329 */ 4330 if ((new_state == NLP_STE_MAPPED_NODE) && 4331 (ndlp->nlp_type & NLP_FCP_TARGET) && 4332 (!ndlp->rport || 4333 ndlp->rport->scsi_target_id == -1 || 4334 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4335 spin_lock_irq(shost->host_lock); 4336 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4337 spin_unlock_irq(shost->host_lock); 4338 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4339 } 4340 } 4341 4342 static char * 4343 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4344 { 4345 static char *states[] = { 4346 [NLP_STE_UNUSED_NODE] = "UNUSED", 4347 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4348 [NLP_STE_ADISC_ISSUE] = "ADISC", 4349 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4350 [NLP_STE_PRLI_ISSUE] = "PRLI", 4351 [NLP_STE_LOGO_ISSUE] = "LOGO", 4352 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4353 [NLP_STE_MAPPED_NODE] = "MAPPED", 4354 [NLP_STE_NPR_NODE] = "NPR", 4355 }; 4356 4357 if (state < NLP_STE_MAX_STATE && states[state]) 4358 strlcpy(buffer, states[state], size); 4359 else 4360 snprintf(buffer, size, "unknown (%d)", state); 4361 return buffer; 4362 } 4363 4364 void 4365 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4366 int state) 4367 { 4368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4369 int old_state = ndlp->nlp_state; 4370 char name1[16], name2[16]; 4371 4372 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4373 "0904 NPort state transition x%06x, %s -> %s\n", 4374 ndlp->nlp_DID, 4375 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4376 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4377 4378 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4379 "node statechg did:x%x old:%d ste:%d", 4380 ndlp->nlp_DID, old_state, state); 4381 4382 if (old_state == NLP_STE_NPR_NODE && 4383 state != NLP_STE_NPR_NODE) 4384 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4385 if (old_state == NLP_STE_UNMAPPED_NODE) { 4386 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4387 ndlp->nlp_type &= ~NLP_FC_NODE; 4388 } 4389 4390 if (list_empty(&ndlp->nlp_listp)) { 4391 spin_lock_irq(shost->host_lock); 4392 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4393 spin_unlock_irq(shost->host_lock); 4394 } else if (old_state) 4395 lpfc_nlp_counters(vport, old_state, -1); 4396 4397 ndlp->nlp_state = state; 4398 lpfc_nlp_counters(vport, state, 1); 4399 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4400 } 4401 4402 void 4403 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4404 { 4405 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4406 4407 if (list_empty(&ndlp->nlp_listp)) { 4408 spin_lock_irq(shost->host_lock); 4409 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4410 spin_unlock_irq(shost->host_lock); 4411 } 4412 } 4413 4414 void 4415 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4416 { 4417 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4418 4419 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4420 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4421 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4422 spin_lock_irq(shost->host_lock); 4423 list_del_init(&ndlp->nlp_listp); 4424 spin_unlock_irq(shost->host_lock); 4425 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4426 NLP_STE_UNUSED_NODE); 4427 } 4428 4429 static void 4430 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4431 { 4432 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4433 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4434 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4435 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4436 NLP_STE_UNUSED_NODE); 4437 } 4438 /** 4439 * lpfc_initialize_node - Initialize all fields of node object 4440 * @vport: Pointer to Virtual Port object. 4441 * @ndlp: Pointer to FC node object. 4442 * @did: FC_ID of the node. 4443 * 4444 * This function is always called when node object need to be initialized. 4445 * It initializes all the fields of the node object. Although the reference 4446 * to phba from @ndlp can be obtained indirectly through it's reference to 4447 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4448 * to the life-span of the @ndlp might go beyond the existence of @vport as 4449 * the final release of ndlp is determined by its reference count. And, the 4450 * operation on @ndlp needs the reference to phba. 4451 **/ 4452 static inline void 4453 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4454 uint32_t did) 4455 { 4456 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4457 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4458 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4459 ndlp->nlp_DID = did; 4460 ndlp->vport = vport; 4461 ndlp->phba = vport->phba; 4462 ndlp->nlp_sid = NLP_NO_SID; 4463 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4464 kref_init(&ndlp->kref); 4465 NLP_INT_NODE_ACT(ndlp); 4466 atomic_set(&ndlp->cmd_pending, 0); 4467 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4468 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4469 } 4470 4471 struct lpfc_nodelist * 4472 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4473 int state) 4474 { 4475 struct lpfc_hba *phba = vport->phba; 4476 uint32_t did, flag; 4477 unsigned long flags; 4478 unsigned long *active_rrqs_xri_bitmap = NULL; 4479 int rpi = LPFC_RPI_ALLOC_ERROR; 4480 uint32_t defer_did = 0; 4481 4482 if (!ndlp) 4483 return NULL; 4484 4485 if (phba->sli_rev == LPFC_SLI_REV4) { 4486 if (ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR) 4487 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4488 else 4489 rpi = ndlp->nlp_rpi; 4490 4491 if (rpi == LPFC_RPI_ALLOC_ERROR) { 4492 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4493 "0359 %s: ndlp:x%px " 4494 "usgmap:x%x refcnt:%d FAILED RPI " 4495 " ALLOC\n", 4496 __func__, 4497 (void *)ndlp, ndlp->nlp_usg_map, 4498 kref_read(&ndlp->kref)); 4499 return NULL; 4500 } 4501 } 4502 4503 spin_lock_irqsave(&phba->ndlp_lock, flags); 4504 /* The ndlp should not be in memory free mode */ 4505 if (NLP_CHK_FREE_REQ(ndlp)) { 4506 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4507 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4508 "0277 %s: ndlp:x%px " 4509 "usgmap:x%x refcnt:%d\n", 4510 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4511 kref_read(&ndlp->kref)); 4512 goto free_rpi; 4513 } 4514 /* The ndlp should not already be in active mode */ 4515 if (NLP_CHK_NODE_ACT(ndlp)) { 4516 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4517 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4518 "0278 %s: ndlp:x%px " 4519 "usgmap:x%x refcnt:%d\n", 4520 __func__, (void *)ndlp, ndlp->nlp_usg_map, 4521 kref_read(&ndlp->kref)); 4522 goto free_rpi; 4523 } 4524 4525 /* First preserve the orginal DID, xri_bitmap and some flags */ 4526 did = ndlp->nlp_DID; 4527 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4528 if (flag & NLP_UNREG_INP) 4529 defer_did = ndlp->nlp_defer_did; 4530 if (phba->sli_rev == LPFC_SLI_REV4) 4531 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4532 4533 /* Zero ndlp except of ndlp linked list pointer */ 4534 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4535 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4536 4537 /* Next reinitialize and restore saved objects */ 4538 lpfc_initialize_node(vport, ndlp, did); 4539 ndlp->nlp_flag |= flag; 4540 if (flag & NLP_UNREG_INP) 4541 ndlp->nlp_defer_did = defer_did; 4542 if (phba->sli_rev == LPFC_SLI_REV4) 4543 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4544 4545 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4546 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4547 ndlp->nlp_rpi = rpi; 4548 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4549 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4550 "map:%x x%px\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4551 ndlp->nlp_flag, 4552 kref_read(&ndlp->kref), 4553 ndlp->nlp_usg_map, ndlp); 4554 } 4555 4556 4557 if (state != NLP_STE_UNUSED_NODE) 4558 lpfc_nlp_set_state(vport, ndlp, state); 4559 else 4560 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4561 "0013 rpi:%x DID:%x flg:%x refcnt:%d " 4562 "map:%x x%px STATE=UNUSED\n", 4563 ndlp->nlp_rpi, ndlp->nlp_DID, 4564 ndlp->nlp_flag, 4565 kref_read(&ndlp->kref), 4566 ndlp->nlp_usg_map, ndlp); 4567 4568 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4569 "node enable: did:x%x", 4570 ndlp->nlp_DID, 0, 0); 4571 return ndlp; 4572 4573 free_rpi: 4574 if (phba->sli_rev == LPFC_SLI_REV4) { 4575 lpfc_sli4_free_rpi(vport->phba, rpi); 4576 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4577 } 4578 return NULL; 4579 } 4580 4581 void 4582 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4583 { 4584 /* 4585 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4586 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4587 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4588 * until ALL other outstanding threads have completed. We check 4589 * that the ndlp not already in the UNUSED state before we proceed. 4590 */ 4591 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4592 return; 4593 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4594 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4595 lpfc_cleanup_vports_rrqs(vport, ndlp); 4596 lpfc_unreg_rpi(vport, ndlp); 4597 } 4598 4599 lpfc_nlp_put(ndlp); 4600 return; 4601 } 4602 4603 /* 4604 * Start / ReStart rescue timer for Discovery / RSCN handling 4605 */ 4606 void 4607 lpfc_set_disctmo(struct lpfc_vport *vport) 4608 { 4609 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4610 struct lpfc_hba *phba = vport->phba; 4611 uint32_t tmo; 4612 4613 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4614 /* For FAN, timeout should be greater than edtov */ 4615 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4616 } else { 4617 /* Normal discovery timeout should be > than ELS/CT timeout 4618 * FC spec states we need 3 * ratov for CT requests 4619 */ 4620 tmo = ((phba->fc_ratov * 3) + 3); 4621 } 4622 4623 4624 if (!timer_pending(&vport->fc_disctmo)) { 4625 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4626 "set disc timer: tmo:x%x state:x%x flg:x%x", 4627 tmo, vport->port_state, vport->fc_flag); 4628 } 4629 4630 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4631 spin_lock_irq(shost->host_lock); 4632 vport->fc_flag |= FC_DISC_TMO; 4633 spin_unlock_irq(shost->host_lock); 4634 4635 /* Start Discovery Timer state <hba_state> */ 4636 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4637 "0247 Start Discovery Timer state x%x " 4638 "Data: x%x x%lx x%x x%x\n", 4639 vport->port_state, tmo, 4640 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4641 vport->fc_adisc_cnt); 4642 4643 return; 4644 } 4645 4646 /* 4647 * Cancel rescue timer for Discovery / RSCN handling 4648 */ 4649 int 4650 lpfc_can_disctmo(struct lpfc_vport *vport) 4651 { 4652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4653 unsigned long iflags; 4654 4655 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4656 "can disc timer: state:x%x rtry:x%x flg:x%x", 4657 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4658 4659 /* Turn off discovery timer if its running */ 4660 if (vport->fc_flag & FC_DISC_TMO) { 4661 spin_lock_irqsave(shost->host_lock, iflags); 4662 vport->fc_flag &= ~FC_DISC_TMO; 4663 spin_unlock_irqrestore(shost->host_lock, iflags); 4664 del_timer_sync(&vport->fc_disctmo); 4665 spin_lock_irqsave(&vport->work_port_lock, iflags); 4666 vport->work_port_events &= ~WORKER_DISC_TMO; 4667 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4668 } 4669 4670 /* Cancel Discovery Timer state <hba_state> */ 4671 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4672 "0248 Cancel Discovery Timer state x%x " 4673 "Data: x%x x%x x%x\n", 4674 vport->port_state, vport->fc_flag, 4675 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4676 return 0; 4677 } 4678 4679 /* 4680 * Check specified ring for outstanding IOCB on the SLI queue 4681 * Return true if iocb matches the specified nport 4682 */ 4683 int 4684 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4685 struct lpfc_sli_ring *pring, 4686 struct lpfc_iocbq *iocb, 4687 struct lpfc_nodelist *ndlp) 4688 { 4689 IOCB_t *icmd = &iocb->iocb; 4690 struct lpfc_vport *vport = ndlp->vport; 4691 4692 if (iocb->vport != vport) 4693 return 0; 4694 4695 if (pring->ringno == LPFC_ELS_RING) { 4696 switch (icmd->ulpCommand) { 4697 case CMD_GEN_REQUEST64_CR: 4698 if (iocb->context_un.ndlp == ndlp) 4699 return 1; 4700 /* fall through */ 4701 case CMD_ELS_REQUEST64_CR: 4702 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4703 return 1; 4704 /* fall through */ 4705 case CMD_XMIT_ELS_RSP64_CX: 4706 if (iocb->context1 == (uint8_t *) ndlp) 4707 return 1; 4708 /* fall through */ 4709 } 4710 } else if (pring->ringno == LPFC_FCP_RING) { 4711 /* Skip match check if waiting to relogin to FCP target */ 4712 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4713 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4714 return 0; 4715 } 4716 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4717 return 1; 4718 } 4719 } 4720 return 0; 4721 } 4722 4723 static void 4724 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4725 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4726 struct list_head *dequeue_list) 4727 { 4728 struct lpfc_iocbq *iocb, *next_iocb; 4729 4730 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4731 /* Check to see if iocb matches the nport */ 4732 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4733 /* match, dequeue */ 4734 list_move_tail(&iocb->list, dequeue_list); 4735 } 4736 } 4737 4738 static void 4739 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4740 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4741 { 4742 struct lpfc_sli *psli = &phba->sli; 4743 uint32_t i; 4744 4745 spin_lock_irq(&phba->hbalock); 4746 for (i = 0; i < psli->num_rings; i++) 4747 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4748 dequeue_list); 4749 spin_unlock_irq(&phba->hbalock); 4750 } 4751 4752 static void 4753 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4754 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4755 { 4756 struct lpfc_sli_ring *pring; 4757 struct lpfc_queue *qp = NULL; 4758 4759 spin_lock_irq(&phba->hbalock); 4760 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4761 pring = qp->pring; 4762 if (!pring) 4763 continue; 4764 spin_lock(&pring->ring_lock); 4765 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4766 spin_unlock(&pring->ring_lock); 4767 } 4768 spin_unlock_irq(&phba->hbalock); 4769 } 4770 4771 /* 4772 * Free resources / clean up outstanding I/Os 4773 * associated with nlp_rpi in the LPFC_NODELIST entry. 4774 */ 4775 static int 4776 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4777 { 4778 LIST_HEAD(completions); 4779 4780 lpfc_fabric_abort_nport(ndlp); 4781 4782 /* 4783 * Everything that matches on txcmplq will be returned 4784 * by firmware with a no rpi error. 4785 */ 4786 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4787 if (phba->sli_rev != LPFC_SLI_REV4) 4788 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4789 else 4790 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4791 } 4792 4793 /* Cancel all the IOCBs from the completions list */ 4794 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4795 IOERR_SLI_ABORTED); 4796 4797 return 0; 4798 } 4799 4800 /** 4801 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4802 * @phba: Pointer to HBA context object. 4803 * @pmb: Pointer to mailbox object. 4804 * 4805 * This function will issue an ELS LOGO command after completing 4806 * the UNREG_RPI. 4807 **/ 4808 static void 4809 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4810 { 4811 struct lpfc_vport *vport = pmb->vport; 4812 struct lpfc_nodelist *ndlp; 4813 4814 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4815 if (!ndlp) 4816 return; 4817 lpfc_issue_els_logo(vport, ndlp, 0); 4818 mempool_free(pmb, phba->mbox_mem_pool); 4819 4820 /* Check to see if there are any deferred events to process */ 4821 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4822 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4823 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4824 "1434 UNREG cmpl deferred logo x%x " 4825 "on NPort x%x Data: x%x x%px\n", 4826 ndlp->nlp_rpi, ndlp->nlp_DID, 4827 ndlp->nlp_defer_did, ndlp); 4828 4829 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4830 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4831 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4832 } else { 4833 if (ndlp->nlp_flag & NLP_RELEASE_RPI) { 4834 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); 4835 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 4836 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 4837 } 4838 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4839 } 4840 } 4841 4842 /* 4843 * Sets the mailbox completion handler to be used for the 4844 * unreg_rpi command. The handler varies based on the state of 4845 * the port and what will be happening to the rpi next. 4846 */ 4847 static void 4848 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, 4849 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) 4850 { 4851 unsigned long iflags; 4852 4853 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4854 mbox->ctx_ndlp = ndlp; 4855 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4856 4857 } else if (phba->sli_rev == LPFC_SLI_REV4 && 4858 (!(vport->load_flag & FC_UNLOADING)) && 4859 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 4860 LPFC_SLI_INTF_IF_TYPE_2) && 4861 (kref_read(&ndlp->kref) > 0)) { 4862 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4863 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; 4864 } else { 4865 if (vport->load_flag & FC_UNLOADING) { 4866 if (phba->sli_rev == LPFC_SLI_REV4) { 4867 spin_lock_irqsave(&vport->phba->ndlp_lock, 4868 iflags); 4869 ndlp->nlp_flag |= NLP_RELEASE_RPI; 4870 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 4871 iflags); 4872 } 4873 lpfc_nlp_get(ndlp); 4874 } 4875 mbox->ctx_ndlp = ndlp; 4876 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4877 } 4878 } 4879 4880 /* 4881 * Free rpi associated with LPFC_NODELIST entry. 4882 * This routine is called from lpfc_freenode(), when we are removing 4883 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4884 * LOGO that completes successfully, and we are waiting to PLOGI back 4885 * to the remote NPort. In addition, it is called after we receive 4886 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4887 * we are waiting to PLOGI back to the remote NPort. 4888 */ 4889 int 4890 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4891 { 4892 struct lpfc_hba *phba = vport->phba; 4893 LPFC_MBOXQ_t *mbox; 4894 int rc, acc_plogi = 1; 4895 uint16_t rpi; 4896 4897 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4898 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4899 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4900 lpfc_printf_vlog(vport, KERN_INFO, 4901 LOG_NODE | LOG_DISCOVERY, 4902 "3366 RPI x%x needs to be " 4903 "unregistered nlp_flag x%x " 4904 "did x%x\n", 4905 ndlp->nlp_rpi, ndlp->nlp_flag, 4906 ndlp->nlp_DID); 4907 4908 /* If there is already an UNREG in progress for this ndlp, 4909 * no need to queue up another one. 4910 */ 4911 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4912 lpfc_printf_vlog(vport, KERN_INFO, 4913 LOG_NODE | LOG_DISCOVERY, 4914 "1436 unreg_rpi SKIP UNREG x%x on " 4915 "NPort x%x deferred x%x flg x%x " 4916 "Data: x%px\n", 4917 ndlp->nlp_rpi, ndlp->nlp_DID, 4918 ndlp->nlp_defer_did, 4919 ndlp->nlp_flag, ndlp); 4920 goto out; 4921 } 4922 4923 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4924 if (mbox) { 4925 /* SLI4 ports require the physical rpi value. */ 4926 rpi = ndlp->nlp_rpi; 4927 if (phba->sli_rev == LPFC_SLI_REV4) 4928 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4929 4930 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4931 mbox->vport = vport; 4932 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); 4933 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) 4934 /* 4935 * accept PLOGIs after unreg_rpi_cmpl 4936 */ 4937 acc_plogi = 0; 4938 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 4939 Fabric_DID_MASK) && 4940 (!(vport->fc_flag & FC_OFFLINE_MODE))) 4941 ndlp->nlp_flag |= NLP_UNREG_INP; 4942 4943 lpfc_printf_vlog(vport, KERN_INFO, 4944 LOG_NODE | LOG_DISCOVERY, 4945 "1433 unreg_rpi UNREG x%x on " 4946 "NPort x%x deferred flg x%x " 4947 "Data:x%px\n", 4948 ndlp->nlp_rpi, ndlp->nlp_DID, 4949 ndlp->nlp_flag, ndlp); 4950 4951 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4952 if (rc == MBX_NOT_FINISHED) { 4953 mempool_free(mbox, phba->mbox_mem_pool); 4954 acc_plogi = 1; 4955 } 4956 } 4957 lpfc_no_rpi(phba, ndlp); 4958 out: 4959 if (phba->sli_rev != LPFC_SLI_REV4) 4960 ndlp->nlp_rpi = 0; 4961 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4962 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4963 if (acc_plogi) 4964 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4965 return 1; 4966 } 4967 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4968 return 0; 4969 } 4970 4971 /** 4972 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4973 * @phba: pointer to lpfc hba data structure. 4974 * 4975 * This routine is invoked to unregister all the currently registered RPIs 4976 * to the HBA. 4977 **/ 4978 void 4979 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4980 { 4981 struct lpfc_vport **vports; 4982 struct lpfc_nodelist *ndlp; 4983 struct Scsi_Host *shost; 4984 int i; 4985 4986 vports = lpfc_create_vport_work_array(phba); 4987 if (!vports) { 4988 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4989 "2884 Vport array allocation failed \n"); 4990 return; 4991 } 4992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4993 shost = lpfc_shost_from_vport(vports[i]); 4994 spin_lock_irq(shost->host_lock); 4995 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4996 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4997 /* The mempool_alloc might sleep */ 4998 spin_unlock_irq(shost->host_lock); 4999 lpfc_unreg_rpi(vports[i], ndlp); 5000 spin_lock_irq(shost->host_lock); 5001 } 5002 } 5003 spin_unlock_irq(shost->host_lock); 5004 } 5005 lpfc_destroy_vport_work_array(phba, vports); 5006 } 5007 5008 void 5009 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 5010 { 5011 struct lpfc_hba *phba = vport->phba; 5012 LPFC_MBOXQ_t *mbox; 5013 int rc; 5014 5015 if (phba->sli_rev == LPFC_SLI_REV4) { 5016 lpfc_sli4_unreg_all_rpis(vport); 5017 return; 5018 } 5019 5020 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5021 if (mbox) { 5022 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 5023 mbox); 5024 mbox->vport = vport; 5025 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5026 mbox->ctx_ndlp = NULL; 5027 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5028 if (rc != MBX_TIMEOUT) 5029 mempool_free(mbox, phba->mbox_mem_pool); 5030 5031 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5032 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5033 "1836 Could not issue " 5034 "unreg_login(all_rpis) status %d\n", rc); 5035 } 5036 } 5037 5038 void 5039 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 5040 { 5041 struct lpfc_hba *phba = vport->phba; 5042 LPFC_MBOXQ_t *mbox; 5043 int rc; 5044 5045 /* Unreg DID is an SLI3 operation. */ 5046 if (phba->sli_rev > LPFC_SLI_REV3) 5047 return; 5048 5049 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5050 if (mbox) { 5051 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 5052 mbox); 5053 mbox->vport = vport; 5054 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5055 mbox->ctx_ndlp = NULL; 5056 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 5057 if (rc != MBX_TIMEOUT) 5058 mempool_free(mbox, phba->mbox_mem_pool); 5059 5060 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5061 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5062 "1815 Could not issue " 5063 "unreg_did (default rpis) status %d\n", 5064 rc); 5065 } 5066 } 5067 5068 /* 5069 * Free resources associated with LPFC_NODELIST entry 5070 * so it can be freed. 5071 */ 5072 static int 5073 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5074 { 5075 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5076 struct lpfc_hba *phba = vport->phba; 5077 LPFC_MBOXQ_t *mb, *nextmb; 5078 struct lpfc_dmabuf *mp; 5079 unsigned long iflags; 5080 5081 /* Cleanup node for NPort <nlp_DID> */ 5082 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5083 "0900 Cleanup node for NPort x%x " 5084 "Data: x%x x%x x%x\n", 5085 ndlp->nlp_DID, ndlp->nlp_flag, 5086 ndlp->nlp_state, ndlp->nlp_rpi); 5087 if (NLP_CHK_FREE_REQ(ndlp)) { 5088 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5089 "0280 %s: ndlp:x%px " 5090 "usgmap:x%x refcnt:%d\n", 5091 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5092 kref_read(&ndlp->kref)); 5093 lpfc_dequeue_node(vport, ndlp); 5094 } else { 5095 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5096 "0281 %s: ndlp:x%px " 5097 "usgmap:x%x refcnt:%d\n", 5098 __func__, (void *)ndlp, ndlp->nlp_usg_map, 5099 kref_read(&ndlp->kref)); 5100 lpfc_disable_node(vport, ndlp); 5101 } 5102 5103 5104 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5105 5106 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5107 if ((mb = phba->sli.mbox_active)) { 5108 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5109 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5110 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5111 mb->ctx_ndlp = NULL; 5112 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5113 } 5114 } 5115 5116 spin_lock_irq(&phba->hbalock); 5117 /* Cleanup REG_LOGIN completions which are not yet processed */ 5118 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5119 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5120 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5121 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5122 continue; 5123 5124 mb->ctx_ndlp = NULL; 5125 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5126 } 5127 5128 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5129 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5130 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5131 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5132 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5133 if (mp) { 5134 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5135 kfree(mp); 5136 } 5137 list_del(&mb->list); 5138 mempool_free(mb, phba->mbox_mem_pool); 5139 /* We shall not invoke the lpfc_nlp_put to decrement 5140 * the ndlp reference count as we are in the process 5141 * of lpfc_nlp_release. 5142 */ 5143 } 5144 } 5145 spin_unlock_irq(&phba->hbalock); 5146 5147 lpfc_els_abort(phba, ndlp); 5148 5149 spin_lock_irq(shost->host_lock); 5150 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5151 spin_unlock_irq(shost->host_lock); 5152 5153 ndlp->nlp_last_elscmd = 0; 5154 del_timer_sync(&ndlp->nlp_delayfunc); 5155 5156 list_del_init(&ndlp->els_retry_evt.evt_listp); 5157 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5158 lpfc_cleanup_vports_rrqs(vport, ndlp); 5159 if (phba->sli_rev == LPFC_SLI_REV4) 5160 ndlp->nlp_flag |= NLP_RELEASE_RPI; 5161 if (!lpfc_unreg_rpi(vport, ndlp)) { 5162 /* Clean up unregistered and non freed rpis */ 5163 if ((ndlp->nlp_flag & NLP_RELEASE_RPI) && 5164 !(ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)) { 5165 lpfc_sli4_free_rpi(vport->phba, 5166 ndlp->nlp_rpi); 5167 spin_lock_irqsave(&vport->phba->ndlp_lock, 5168 iflags); 5169 ndlp->nlp_flag &= ~NLP_RELEASE_RPI; 5170 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 5171 spin_unlock_irqrestore(&vport->phba->ndlp_lock, 5172 iflags); 5173 } 5174 } 5175 return 0; 5176 } 5177 5178 /* 5179 * Check to see if we can free the nlp back to the freelist. 5180 * If we are in the middle of using the nlp in the discovery state 5181 * machine, defer the free till we reach the end of the state machine. 5182 */ 5183 static void 5184 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5185 { 5186 struct lpfc_hba *phba = vport->phba; 5187 struct lpfc_rport_data *rdata; 5188 struct fc_rport *rport; 5189 LPFC_MBOXQ_t *mbox; 5190 int rc; 5191 5192 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5193 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5194 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5195 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5196 phba->sli_rev != LPFC_SLI_REV4) { 5197 /* For this case we need to cleanup the default rpi 5198 * allocated by the firmware. 5199 */ 5200 lpfc_printf_vlog(vport, KERN_INFO, 5201 LOG_NODE | LOG_DISCOVERY, 5202 "0005 Cleanup Default rpi:x%x DID:x%x flg:x%x " 5203 "ref %d map:x%x ndlp x%px\n", 5204 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5205 kref_read(&ndlp->kref), 5206 ndlp->nlp_usg_map, ndlp); 5207 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5208 != NULL) { 5209 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5210 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5211 if (rc) { 5212 mempool_free(mbox, phba->mbox_mem_pool); 5213 } 5214 else { 5215 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5216 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5217 mbox->vport = vport; 5218 mbox->ctx_ndlp = ndlp; 5219 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5220 if (rc == MBX_NOT_FINISHED) { 5221 mempool_free(mbox, phba->mbox_mem_pool); 5222 } 5223 } 5224 } 5225 } 5226 lpfc_cleanup_node(vport, ndlp); 5227 5228 /* 5229 * ndlp->rport must be set to NULL before it reaches here 5230 * i.e. break rport/node link before doing lpfc_nlp_put for 5231 * registered rport and then drop the reference of rport. 5232 */ 5233 if (ndlp->rport) { 5234 /* 5235 * extra lpfc_nlp_put dropped the reference of ndlp 5236 * for registered rport so need to cleanup rport 5237 */ 5238 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5239 "0940 removed node x%px DID x%x " 5240 "rpi %d rport not null x%px\n", 5241 ndlp, ndlp->nlp_DID, ndlp->nlp_rpi, 5242 ndlp->rport); 5243 rport = ndlp->rport; 5244 rdata = rport->dd_data; 5245 rdata->pnode = NULL; 5246 ndlp->rport = NULL; 5247 put_device(&rport->dev); 5248 } 5249 } 5250 5251 static int 5252 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5253 uint32_t did) 5254 { 5255 D_ID mydid, ndlpdid, matchdid; 5256 5257 if (did == Bcast_DID) 5258 return 0; 5259 5260 /* First check for Direct match */ 5261 if (ndlp->nlp_DID == did) 5262 return 1; 5263 5264 /* Next check for area/domain identically equals 0 match */ 5265 mydid.un.word = vport->fc_myDID; 5266 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5267 return 0; 5268 } 5269 5270 matchdid.un.word = did; 5271 ndlpdid.un.word = ndlp->nlp_DID; 5272 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5273 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5274 (mydid.un.b.area == matchdid.un.b.area)) { 5275 /* This code is supposed to match the ID 5276 * for a private loop device that is 5277 * connect to fl_port. But we need to 5278 * check that the port did not just go 5279 * from pt2pt to fabric or we could end 5280 * up matching ndlp->nlp_DID 000001 to 5281 * fabric DID 0x20101 5282 */ 5283 if ((ndlpdid.un.b.domain == 0) && 5284 (ndlpdid.un.b.area == 0)) { 5285 if (ndlpdid.un.b.id && 5286 vport->phba->fc_topology == 5287 LPFC_TOPOLOGY_LOOP) 5288 return 1; 5289 } 5290 return 0; 5291 } 5292 5293 matchdid.un.word = ndlp->nlp_DID; 5294 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5295 (mydid.un.b.area == ndlpdid.un.b.area)) { 5296 if ((matchdid.un.b.domain == 0) && 5297 (matchdid.un.b.area == 0)) { 5298 if (matchdid.un.b.id) 5299 return 1; 5300 } 5301 } 5302 } 5303 return 0; 5304 } 5305 5306 /* Search for a nodelist entry */ 5307 static struct lpfc_nodelist * 5308 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5309 { 5310 struct lpfc_nodelist *ndlp; 5311 uint32_t data1; 5312 5313 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5314 if (lpfc_matchdid(vport, ndlp, did)) { 5315 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5316 ((uint32_t)ndlp->nlp_xri << 16) | 5317 ((uint32_t)ndlp->nlp_type << 8) | 5318 ((uint32_t)ndlp->nlp_usg_map & 0xff)); 5319 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5320 "0929 FIND node DID " 5321 "Data: x%px x%x x%x x%x x%x x%px\n", 5322 ndlp, ndlp->nlp_DID, 5323 ndlp->nlp_flag, data1, ndlp->nlp_rpi, 5324 ndlp->active_rrqs_xri_bitmap); 5325 return ndlp; 5326 } 5327 } 5328 5329 /* FIND node did <did> NOT FOUND */ 5330 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5331 "0932 FIND node did x%x NOT FOUND.\n", did); 5332 return NULL; 5333 } 5334 5335 struct lpfc_nodelist * 5336 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5337 { 5338 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5339 struct lpfc_nodelist *ndlp; 5340 unsigned long iflags; 5341 5342 spin_lock_irqsave(shost->host_lock, iflags); 5343 ndlp = __lpfc_findnode_did(vport, did); 5344 spin_unlock_irqrestore(shost->host_lock, iflags); 5345 return ndlp; 5346 } 5347 5348 struct lpfc_nodelist * 5349 lpfc_findnode_mapped(struct lpfc_vport *vport) 5350 { 5351 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5352 struct lpfc_nodelist *ndlp; 5353 uint32_t data1; 5354 unsigned long iflags; 5355 5356 spin_lock_irqsave(shost->host_lock, iflags); 5357 5358 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5359 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 5360 ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 5361 data1 = (((uint32_t)ndlp->nlp_state << 24) | 5362 ((uint32_t)ndlp->nlp_xri << 16) | 5363 ((uint32_t)ndlp->nlp_type << 8) | 5364 ((uint32_t)ndlp->nlp_rpi & 0xff)); 5365 spin_unlock_irqrestore(shost->host_lock, iflags); 5366 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5367 "2025 FIND node DID " 5368 "Data: x%px x%x x%x x%x x%px\n", 5369 ndlp, ndlp->nlp_DID, 5370 ndlp->nlp_flag, data1, 5371 ndlp->active_rrqs_xri_bitmap); 5372 return ndlp; 5373 } 5374 } 5375 spin_unlock_irqrestore(shost->host_lock, iflags); 5376 5377 /* FIND node did <did> NOT FOUND */ 5378 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5379 "2026 FIND mapped did NOT FOUND.\n"); 5380 return NULL; 5381 } 5382 5383 struct lpfc_nodelist * 5384 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5385 { 5386 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5387 struct lpfc_nodelist *ndlp; 5388 5389 ndlp = lpfc_findnode_did(vport, did); 5390 if (!ndlp) { 5391 if (vport->phba->nvmet_support) 5392 return NULL; 5393 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5394 lpfc_rscn_payload_check(vport, did) == 0) 5395 return NULL; 5396 ndlp = lpfc_nlp_init(vport, did); 5397 if (!ndlp) 5398 return NULL; 5399 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5400 5401 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5402 "6453 Setup New Node 2B_DISC x%x " 5403 "Data:x%x x%x x%x\n", 5404 ndlp->nlp_DID, ndlp->nlp_flag, 5405 ndlp->nlp_state, vport->fc_flag); 5406 5407 spin_lock_irq(shost->host_lock); 5408 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5409 spin_unlock_irq(shost->host_lock); 5410 return ndlp; 5411 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5412 if (vport->phba->nvmet_support) 5413 return NULL; 5414 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5415 if (!ndlp) { 5416 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, 5417 "0014 Could not enable ndlp\n"); 5418 return NULL; 5419 } 5420 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5421 "6454 Setup Enabled Node 2B_DISC x%x " 5422 "Data:x%x x%x x%x\n", 5423 ndlp->nlp_DID, ndlp->nlp_flag, 5424 ndlp->nlp_state, vport->fc_flag); 5425 5426 spin_lock_irq(shost->host_lock); 5427 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5428 spin_unlock_irq(shost->host_lock); 5429 return ndlp; 5430 } 5431 5432 /* The NVME Target does not want to actively manage an rport. 5433 * The goal is to allow the target to reset its state and clear 5434 * pending IO in preparation for the initiator to recover. 5435 */ 5436 if ((vport->fc_flag & FC_RSCN_MODE) && 5437 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5438 if (lpfc_rscn_payload_check(vport, did)) { 5439 5440 /* Since this node is marked for discovery, 5441 * delay timeout is not needed. 5442 */ 5443 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5444 5445 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5446 "6455 Setup RSCN Node 2B_DISC x%x " 5447 "Data:x%x x%x x%x\n", 5448 ndlp->nlp_DID, ndlp->nlp_flag, 5449 ndlp->nlp_state, vport->fc_flag); 5450 5451 /* NVME Target mode waits until rport is known to be 5452 * impacted by the RSCN before it transitions. No 5453 * active management - just go to NPR provided the 5454 * node had a valid login. 5455 */ 5456 if (vport->phba->nvmet_support) 5457 return ndlp; 5458 5459 /* If we've already received a PLOGI from this NPort 5460 * we don't need to try to discover it again. 5461 */ 5462 if (ndlp->nlp_flag & NLP_RCV_PLOGI && 5463 !(ndlp->nlp_type & 5464 (NLP_FCP_TARGET | NLP_NVME_TARGET))) 5465 return NULL; 5466 5467 ndlp->nlp_prev_state = ndlp->nlp_state; 5468 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5469 5470 spin_lock_irq(shost->host_lock); 5471 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5472 spin_unlock_irq(shost->host_lock); 5473 } else { 5474 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5475 "6456 Skip Setup RSCN Node x%x " 5476 "Data:x%x x%x x%x\n", 5477 ndlp->nlp_DID, ndlp->nlp_flag, 5478 ndlp->nlp_state, vport->fc_flag); 5479 ndlp = NULL; 5480 } 5481 } else { 5482 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5483 "6457 Setup Active Node 2B_DISC x%x " 5484 "Data:x%x x%x x%x\n", 5485 ndlp->nlp_DID, ndlp->nlp_flag, 5486 ndlp->nlp_state, vport->fc_flag); 5487 5488 /* If the initiator received a PLOGI from this NPort or if the 5489 * initiator is already in the process of discovery on it, 5490 * there's no need to try to discover it again. 5491 */ 5492 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5493 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5494 (!vport->phba->nvmet_support && 5495 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5496 return NULL; 5497 5498 if (vport->phba->nvmet_support) 5499 return ndlp; 5500 5501 /* Moving to NPR state clears unsolicited flags and 5502 * allows for rediscovery 5503 */ 5504 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5505 5506 spin_lock_irq(shost->host_lock); 5507 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5508 spin_unlock_irq(shost->host_lock); 5509 } 5510 return ndlp; 5511 } 5512 5513 /* Build a list of nodes to discover based on the loopmap */ 5514 void 5515 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5516 { 5517 struct lpfc_hba *phba = vport->phba; 5518 int j; 5519 uint32_t alpa, index; 5520 5521 if (!lpfc_is_link_up(phba)) 5522 return; 5523 5524 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5525 return; 5526 5527 /* Check for loop map present or not */ 5528 if (phba->alpa_map[0]) { 5529 for (j = 1; j <= phba->alpa_map[0]; j++) { 5530 alpa = phba->alpa_map[j]; 5531 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5532 continue; 5533 lpfc_setup_disc_node(vport, alpa); 5534 } 5535 } else { 5536 /* No alpamap, so try all alpa's */ 5537 for (j = 0; j < FC_MAXLOOP; j++) { 5538 /* If cfg_scan_down is set, start from highest 5539 * ALPA (0xef) to lowest (0x1). 5540 */ 5541 if (vport->cfg_scan_down) 5542 index = j; 5543 else 5544 index = FC_MAXLOOP - j - 1; 5545 alpa = lpfcAlpaArray[index]; 5546 if ((vport->fc_myDID & 0xff) == alpa) 5547 continue; 5548 lpfc_setup_disc_node(vport, alpa); 5549 } 5550 } 5551 return; 5552 } 5553 5554 /* SLI3 only */ 5555 void 5556 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5557 { 5558 LPFC_MBOXQ_t *mbox; 5559 struct lpfc_sli *psli = &phba->sli; 5560 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5561 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5562 int rc; 5563 5564 /* 5565 * if it's not a physical port or if we already send 5566 * clear_la then don't send it. 5567 */ 5568 if ((phba->link_state >= LPFC_CLEAR_LA) || 5569 (vport->port_type != LPFC_PHYSICAL_PORT) || 5570 (phba->sli_rev == LPFC_SLI_REV4)) 5571 return; 5572 5573 /* Link up discovery */ 5574 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5575 phba->link_state = LPFC_CLEAR_LA; 5576 lpfc_clear_la(phba, mbox); 5577 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5578 mbox->vport = vport; 5579 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5580 if (rc == MBX_NOT_FINISHED) { 5581 mempool_free(mbox, phba->mbox_mem_pool); 5582 lpfc_disc_flush_list(vport); 5583 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5584 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5585 phba->link_state = LPFC_HBA_ERROR; 5586 } 5587 } 5588 } 5589 5590 /* Reg_vpi to tell firmware to resume normal operations */ 5591 void 5592 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5593 { 5594 LPFC_MBOXQ_t *regvpimbox; 5595 5596 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5597 if (regvpimbox) { 5598 lpfc_reg_vpi(vport, regvpimbox); 5599 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5600 regvpimbox->vport = vport; 5601 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5602 == MBX_NOT_FINISHED) { 5603 mempool_free(regvpimbox, phba->mbox_mem_pool); 5604 } 5605 } 5606 } 5607 5608 /* Start Link up / RSCN discovery on NPR nodes */ 5609 void 5610 lpfc_disc_start(struct lpfc_vport *vport) 5611 { 5612 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5613 struct lpfc_hba *phba = vport->phba; 5614 uint32_t num_sent; 5615 uint32_t clear_la_pending; 5616 5617 if (!lpfc_is_link_up(phba)) { 5618 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5619 "3315 Link is not up %x\n", 5620 phba->link_state); 5621 return; 5622 } 5623 5624 if (phba->link_state == LPFC_CLEAR_LA) 5625 clear_la_pending = 1; 5626 else 5627 clear_la_pending = 0; 5628 5629 if (vport->port_state < LPFC_VPORT_READY) 5630 vport->port_state = LPFC_DISC_AUTH; 5631 5632 lpfc_set_disctmo(vport); 5633 5634 vport->fc_prevDID = vport->fc_myDID; 5635 vport->num_disc_nodes = 0; 5636 5637 /* Start Discovery state <hba_state> */ 5638 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5639 "0202 Start Discovery port state x%x " 5640 "flg x%x Data: x%x x%x x%x\n", 5641 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5642 vport->fc_adisc_cnt, vport->fc_npr_cnt); 5643 5644 /* First do ADISCs - if any */ 5645 num_sent = lpfc_els_disc_adisc(vport); 5646 5647 if (num_sent) 5648 return; 5649 5650 /* Register the VPI for SLI3, NPIV only. */ 5651 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5652 !(vport->fc_flag & FC_PT2PT) && 5653 !(vport->fc_flag & FC_RSCN_MODE) && 5654 (phba->sli_rev < LPFC_SLI_REV4)) { 5655 lpfc_issue_clear_la(phba, vport); 5656 lpfc_issue_reg_vpi(phba, vport); 5657 return; 5658 } 5659 5660 /* 5661 * For SLI2, we need to set port_state to READY and continue 5662 * discovery. 5663 */ 5664 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5665 /* If we get here, there is nothing to ADISC */ 5666 lpfc_issue_clear_la(phba, vport); 5667 5668 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5669 vport->num_disc_nodes = 0; 5670 /* go thru NPR nodes and issue ELS PLOGIs */ 5671 if (vport->fc_npr_cnt) 5672 lpfc_els_disc_plogi(vport); 5673 5674 if (!vport->num_disc_nodes) { 5675 spin_lock_irq(shost->host_lock); 5676 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5677 spin_unlock_irq(shost->host_lock); 5678 lpfc_can_disctmo(vport); 5679 } 5680 } 5681 vport->port_state = LPFC_VPORT_READY; 5682 } else { 5683 /* Next do PLOGIs - if any */ 5684 num_sent = lpfc_els_disc_plogi(vport); 5685 5686 if (num_sent) 5687 return; 5688 5689 if (vport->fc_flag & FC_RSCN_MODE) { 5690 /* Check to see if more RSCNs came in while we 5691 * were processing this one. 5692 */ 5693 if ((vport->fc_rscn_id_cnt == 0) && 5694 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5695 spin_lock_irq(shost->host_lock); 5696 vport->fc_flag &= ~FC_RSCN_MODE; 5697 spin_unlock_irq(shost->host_lock); 5698 lpfc_can_disctmo(vport); 5699 } else 5700 lpfc_els_handle_rscn(vport); 5701 } 5702 } 5703 return; 5704 } 5705 5706 /* 5707 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5708 * ring the match the sppecified nodelist. 5709 */ 5710 static void 5711 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5712 { 5713 LIST_HEAD(completions); 5714 IOCB_t *icmd; 5715 struct lpfc_iocbq *iocb, *next_iocb; 5716 struct lpfc_sli_ring *pring; 5717 5718 pring = lpfc_phba_elsring(phba); 5719 if (unlikely(!pring)) 5720 return; 5721 5722 /* Error matching iocb on txq or txcmplq 5723 * First check the txq. 5724 */ 5725 spin_lock_irq(&phba->hbalock); 5726 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5727 if (iocb->context1 != ndlp) { 5728 continue; 5729 } 5730 icmd = &iocb->iocb; 5731 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5732 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5733 5734 list_move_tail(&iocb->list, &completions); 5735 } 5736 } 5737 5738 /* Next check the txcmplq */ 5739 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5740 if (iocb->context1 != ndlp) { 5741 continue; 5742 } 5743 icmd = &iocb->iocb; 5744 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5745 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5746 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5747 } 5748 } 5749 spin_unlock_irq(&phba->hbalock); 5750 5751 /* Cancel all the IOCBs from the completions list */ 5752 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5753 IOERR_SLI_ABORTED); 5754 } 5755 5756 static void 5757 lpfc_disc_flush_list(struct lpfc_vport *vport) 5758 { 5759 struct lpfc_nodelist *ndlp, *next_ndlp; 5760 struct lpfc_hba *phba = vport->phba; 5761 5762 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5763 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5764 nlp_listp) { 5765 if (!NLP_CHK_NODE_ACT(ndlp)) 5766 continue; 5767 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5768 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5769 lpfc_free_tx(phba, ndlp); 5770 } 5771 } 5772 } 5773 } 5774 5775 void 5776 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5777 { 5778 lpfc_els_flush_rscn(vport); 5779 lpfc_els_flush_cmd(vport); 5780 lpfc_disc_flush_list(vport); 5781 } 5782 5783 /*****************************************************************************/ 5784 /* 5785 * NAME: lpfc_disc_timeout 5786 * 5787 * FUNCTION: Fibre Channel driver discovery timeout routine. 5788 * 5789 * EXECUTION ENVIRONMENT: interrupt only 5790 * 5791 * CALLED FROM: 5792 * Timer function 5793 * 5794 * RETURNS: 5795 * none 5796 */ 5797 /*****************************************************************************/ 5798 void 5799 lpfc_disc_timeout(struct timer_list *t) 5800 { 5801 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5802 struct lpfc_hba *phba = vport->phba; 5803 uint32_t tmo_posted; 5804 unsigned long flags = 0; 5805 5806 if (unlikely(!phba)) 5807 return; 5808 5809 spin_lock_irqsave(&vport->work_port_lock, flags); 5810 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5811 if (!tmo_posted) 5812 vport->work_port_events |= WORKER_DISC_TMO; 5813 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5814 5815 if (!tmo_posted) 5816 lpfc_worker_wake_up(phba); 5817 return; 5818 } 5819 5820 static void 5821 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5822 { 5823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5824 struct lpfc_hba *phba = vport->phba; 5825 struct lpfc_sli *psli = &phba->sli; 5826 struct lpfc_nodelist *ndlp, *next_ndlp; 5827 LPFC_MBOXQ_t *initlinkmbox; 5828 int rc, clrlaerr = 0; 5829 5830 if (!(vport->fc_flag & FC_DISC_TMO)) 5831 return; 5832 5833 spin_lock_irq(shost->host_lock); 5834 vport->fc_flag &= ~FC_DISC_TMO; 5835 spin_unlock_irq(shost->host_lock); 5836 5837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5838 "disc timeout: state:x%x rtry:x%x flg:x%x", 5839 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5840 5841 switch (vport->port_state) { 5842 5843 case LPFC_LOCAL_CFG_LINK: 5844 /* 5845 * port_state is identically LPFC_LOCAL_CFG_LINK while 5846 * waiting for FAN timeout 5847 */ 5848 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5849 "0221 FAN timeout\n"); 5850 5851 /* Start discovery by sending FLOGI, clean up old rpis */ 5852 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5853 nlp_listp) { 5854 if (!NLP_CHK_NODE_ACT(ndlp)) 5855 continue; 5856 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5857 continue; 5858 if (ndlp->nlp_type & NLP_FABRIC) { 5859 /* Clean up the ndlp on Fabric connections */ 5860 lpfc_drop_node(vport, ndlp); 5861 5862 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5863 /* Fail outstanding IO now since device 5864 * is marked for PLOGI. 5865 */ 5866 lpfc_unreg_rpi(vport, ndlp); 5867 } 5868 } 5869 if (vport->port_state != LPFC_FLOGI) { 5870 if (phba->sli_rev <= LPFC_SLI_REV3) 5871 lpfc_initial_flogi(vport); 5872 else 5873 lpfc_issue_init_vfi(vport); 5874 return; 5875 } 5876 break; 5877 5878 case LPFC_FDISC: 5879 case LPFC_FLOGI: 5880 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5881 /* Initial FLOGI timeout */ 5882 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5883 "0222 Initial %s timeout\n", 5884 vport->vpi ? "FDISC" : "FLOGI"); 5885 5886 /* Assume no Fabric and go on with discovery. 5887 * Check for outstanding ELS FLOGI to abort. 5888 */ 5889 5890 /* FLOGI failed, so just use loop map to make discovery list */ 5891 lpfc_disc_list_loopmap(vport); 5892 5893 /* Start discovery */ 5894 lpfc_disc_start(vport); 5895 break; 5896 5897 case LPFC_FABRIC_CFG_LINK: 5898 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5899 NameServer login */ 5900 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5901 "0223 Timeout while waiting for " 5902 "NameServer login\n"); 5903 /* Next look for NameServer ndlp */ 5904 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5905 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5906 lpfc_els_abort(phba, ndlp); 5907 5908 /* ReStart discovery */ 5909 goto restart_disc; 5910 5911 case LPFC_NS_QRY: 5912 /* Check for wait for NameServer Rsp timeout */ 5913 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5914 "0224 NameServer Query timeout " 5915 "Data: x%x x%x\n", 5916 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5917 5918 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5919 /* Try it one more time */ 5920 vport->fc_ns_retry++; 5921 vport->gidft_inp = 0; 5922 rc = lpfc_issue_gidft(vport); 5923 if (rc == 0) 5924 break; 5925 } 5926 vport->fc_ns_retry = 0; 5927 5928 restart_disc: 5929 /* 5930 * Discovery is over. 5931 * set port_state to PORT_READY if SLI2. 5932 * cmpl_reg_vpi will set port_state to READY for SLI3. 5933 */ 5934 if (phba->sli_rev < LPFC_SLI_REV4) { 5935 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5936 lpfc_issue_reg_vpi(phba, vport); 5937 else { 5938 lpfc_issue_clear_la(phba, vport); 5939 vport->port_state = LPFC_VPORT_READY; 5940 } 5941 } 5942 5943 /* Setup and issue mailbox INITIALIZE LINK command */ 5944 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5945 if (!initlinkmbox) { 5946 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5947 "0206 Device Discovery " 5948 "completion error\n"); 5949 phba->link_state = LPFC_HBA_ERROR; 5950 break; 5951 } 5952 5953 lpfc_linkdown(phba); 5954 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5955 phba->cfg_link_speed); 5956 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5957 initlinkmbox->vport = vport; 5958 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5959 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5960 lpfc_set_loopback_flag(phba); 5961 if (rc == MBX_NOT_FINISHED) 5962 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5963 5964 break; 5965 5966 case LPFC_DISC_AUTH: 5967 /* Node Authentication timeout */ 5968 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5969 "0227 Node Authentication timeout\n"); 5970 lpfc_disc_flush_list(vport); 5971 5972 /* 5973 * set port_state to PORT_READY if SLI2. 5974 * cmpl_reg_vpi will set port_state to READY for SLI3. 5975 */ 5976 if (phba->sli_rev < LPFC_SLI_REV4) { 5977 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5978 lpfc_issue_reg_vpi(phba, vport); 5979 else { /* NPIV Not enabled */ 5980 lpfc_issue_clear_la(phba, vport); 5981 vport->port_state = LPFC_VPORT_READY; 5982 } 5983 } 5984 break; 5985 5986 case LPFC_VPORT_READY: 5987 if (vport->fc_flag & FC_RSCN_MODE) { 5988 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5989 "0231 RSCN timeout Data: x%x " 5990 "x%x\n", 5991 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5992 5993 /* Cleanup any outstanding ELS commands */ 5994 lpfc_els_flush_cmd(vport); 5995 5996 lpfc_els_flush_rscn(vport); 5997 lpfc_disc_flush_list(vport); 5998 } 5999 break; 6000 6001 default: 6002 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6003 "0273 Unexpected discovery timeout, " 6004 "vport State x%x\n", vport->port_state); 6005 break; 6006 } 6007 6008 switch (phba->link_state) { 6009 case LPFC_CLEAR_LA: 6010 /* CLEAR LA timeout */ 6011 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6012 "0228 CLEAR LA timeout\n"); 6013 clrlaerr = 1; 6014 break; 6015 6016 case LPFC_LINK_UP: 6017 lpfc_issue_clear_la(phba, vport); 6018 /* fall through */ 6019 case LPFC_LINK_UNKNOWN: 6020 case LPFC_WARM_START: 6021 case LPFC_INIT_START: 6022 case LPFC_INIT_MBX_CMDS: 6023 case LPFC_LINK_DOWN: 6024 case LPFC_HBA_ERROR: 6025 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 6026 "0230 Unexpected timeout, hba link " 6027 "state x%x\n", phba->link_state); 6028 clrlaerr = 1; 6029 break; 6030 6031 case LPFC_HBA_READY: 6032 break; 6033 } 6034 6035 if (clrlaerr) { 6036 lpfc_disc_flush_list(vport); 6037 if (phba->sli_rev != LPFC_SLI_REV4) { 6038 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 6039 ~LPFC_STOP_IOCB_EVENT; 6040 psli->sli3_ring[LPFC_FCP_RING].flag &= 6041 ~LPFC_STOP_IOCB_EVENT; 6042 } 6043 vport->port_state = LPFC_VPORT_READY; 6044 } 6045 return; 6046 } 6047 6048 /* 6049 * This routine handles processing a NameServer REG_LOGIN mailbox 6050 * command upon completion. It is setup in the LPFC_MBOXQ 6051 * as the completion routine when the command is 6052 * handed off to the SLI layer. 6053 */ 6054 void 6055 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 6056 { 6057 MAILBOX_t *mb = &pmb->u.mb; 6058 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 6059 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 6060 struct lpfc_vport *vport = pmb->vport; 6061 6062 pmb->ctx_buf = NULL; 6063 pmb->ctx_ndlp = NULL; 6064 6065 if (phba->sli_rev < LPFC_SLI_REV4) 6066 ndlp->nlp_rpi = mb->un.varWords[0]; 6067 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 6068 ndlp->nlp_type |= NLP_FABRIC; 6069 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 6070 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6071 "0004 rpi:%x DID:%x flg:%x %d map:%x x%px\n", 6072 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 6073 kref_read(&ndlp->kref), 6074 ndlp->nlp_usg_map, ndlp); 6075 /* 6076 * Start issuing Fabric-Device Management Interface (FDMI) command to 6077 * 0xfffffa (FDMI well known port). 6078 * DHBA -> DPRT -> RHBA -> RPA (physical port) 6079 * DPRT -> RPRT (vports) 6080 */ 6081 if (vport->port_type == LPFC_PHYSICAL_PORT) 6082 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 6083 else 6084 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 6085 6086 6087 /* decrement the node reference count held for this callback 6088 * function. 6089 */ 6090 lpfc_nlp_put(ndlp); 6091 lpfc_mbuf_free(phba, mp->virt, mp->phys); 6092 kfree(mp); 6093 mempool_free(pmb, phba->mbox_mem_pool); 6094 6095 return; 6096 } 6097 6098 static int 6099 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 6100 { 6101 uint16_t *rpi = param; 6102 6103 /* check for active node */ 6104 if (!NLP_CHK_NODE_ACT(ndlp)) 6105 return 0; 6106 6107 return ndlp->nlp_rpi == *rpi; 6108 } 6109 6110 static int 6111 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 6112 { 6113 return memcmp(&ndlp->nlp_portname, param, 6114 sizeof(ndlp->nlp_portname)) == 0; 6115 } 6116 6117 static struct lpfc_nodelist * 6118 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 6119 { 6120 struct lpfc_nodelist *ndlp; 6121 6122 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6123 if (filter(ndlp, param)) { 6124 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6125 "3185 FIND node filter %ps DID " 6126 "ndlp x%px did x%x flg x%x st x%x " 6127 "xri x%x type x%x rpi x%x\n", 6128 filter, ndlp, ndlp->nlp_DID, 6129 ndlp->nlp_flag, ndlp->nlp_state, 6130 ndlp->nlp_xri, ndlp->nlp_type, 6131 ndlp->nlp_rpi); 6132 return ndlp; 6133 } 6134 } 6135 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6136 "3186 FIND node filter %ps NOT FOUND.\n", filter); 6137 return NULL; 6138 } 6139 6140 /* 6141 * This routine looks up the ndlp lists for the given RPI. If rpi found it 6142 * returns the node list element pointer else return NULL. 6143 */ 6144 struct lpfc_nodelist * 6145 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6146 { 6147 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 6148 } 6149 6150 /* 6151 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 6152 * returns the node element list pointer else return NULL. 6153 */ 6154 struct lpfc_nodelist * 6155 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6156 { 6157 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6158 struct lpfc_nodelist *ndlp; 6159 6160 spin_lock_irq(shost->host_lock); 6161 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6162 spin_unlock_irq(shost->host_lock); 6163 return ndlp; 6164 } 6165 6166 /* 6167 * This routine looks up the ndlp lists for the given RPI. If the rpi 6168 * is found, the routine returns the node element list pointer else 6169 * return NULL. 6170 */ 6171 struct lpfc_nodelist * 6172 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6173 { 6174 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6175 struct lpfc_nodelist *ndlp; 6176 unsigned long flags; 6177 6178 spin_lock_irqsave(shost->host_lock, flags); 6179 ndlp = __lpfc_findnode_rpi(vport, rpi); 6180 spin_unlock_irqrestore(shost->host_lock, flags); 6181 return ndlp; 6182 } 6183 6184 /** 6185 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6186 * @phba: pointer to lpfc hba data structure. 6187 * @vpi: the physical host virtual N_Port identifier. 6188 * 6189 * This routine finds a vport on a HBA (referred by @phba) through a 6190 * @vpi. The function walks the HBA's vport list and returns the address 6191 * of the vport with the matching @vpi. 6192 * 6193 * Return code 6194 * NULL - No vport with the matching @vpi found 6195 * Otherwise - Address to the vport with the matching @vpi. 6196 **/ 6197 struct lpfc_vport * 6198 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6199 { 6200 struct lpfc_vport *vport; 6201 unsigned long flags; 6202 int i = 0; 6203 6204 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6205 if (vpi > 0) { 6206 /* 6207 * Translate the physical vpi to the logical vpi. The 6208 * vport stores the logical vpi. 6209 */ 6210 for (i = 0; i < phba->max_vpi; i++) { 6211 if (vpi == phba->vpi_ids[i]) 6212 break; 6213 } 6214 6215 if (i >= phba->max_vpi) { 6216 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 6217 "2936 Could not find Vport mapped " 6218 "to vpi %d\n", vpi); 6219 return NULL; 6220 } 6221 } 6222 6223 spin_lock_irqsave(&phba->port_list_lock, flags); 6224 list_for_each_entry(vport, &phba->port_list, listentry) { 6225 if (vport->vpi == i) { 6226 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6227 return vport; 6228 } 6229 } 6230 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6231 return NULL; 6232 } 6233 6234 struct lpfc_nodelist * 6235 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6236 { 6237 struct lpfc_nodelist *ndlp; 6238 int rpi = LPFC_RPI_ALLOC_ERROR; 6239 6240 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6241 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6242 if (rpi == LPFC_RPI_ALLOC_ERROR) 6243 return NULL; 6244 } 6245 6246 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6247 if (!ndlp) { 6248 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6249 lpfc_sli4_free_rpi(vport->phba, rpi); 6250 return NULL; 6251 } 6252 6253 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6254 6255 lpfc_initialize_node(vport, ndlp, did); 6256 INIT_LIST_HEAD(&ndlp->nlp_listp); 6257 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6258 ndlp->nlp_rpi = rpi; 6259 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, 6260 "0007 Init New ndlp x%px, rpi:x%x DID:%x " 6261 "flg:x%x refcnt:%d map:x%x\n", 6262 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, 6263 ndlp->nlp_flag, kref_read(&ndlp->kref), 6264 ndlp->nlp_usg_map); 6265 6266 ndlp->active_rrqs_xri_bitmap = 6267 mempool_alloc(vport->phba->active_rrq_pool, 6268 GFP_KERNEL); 6269 if (ndlp->active_rrqs_xri_bitmap) 6270 memset(ndlp->active_rrqs_xri_bitmap, 0, 6271 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6272 } 6273 6274 6275 6276 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6277 "node init: did:x%x", 6278 ndlp->nlp_DID, 0, 0); 6279 6280 return ndlp; 6281 } 6282 6283 /* This routine releases all resources associated with a specifc NPort's ndlp 6284 * and mempool_free's the nodelist. 6285 */ 6286 static void 6287 lpfc_nlp_release(struct kref *kref) 6288 { 6289 struct lpfc_hba *phba; 6290 unsigned long flags; 6291 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6292 kref); 6293 6294 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6295 "node release: did:x%x flg:x%x type:x%x", 6296 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6297 6298 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6299 "0279 %s: ndlp:x%px did %x " 6300 "usgmap:x%x refcnt:%d rpi:%x\n", 6301 __func__, 6302 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6303 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6304 6305 /* remove ndlp from action. */ 6306 lpfc_nlp_remove(ndlp->vport, ndlp); 6307 6308 /* clear the ndlp active flag for all release cases */ 6309 phba = ndlp->phba; 6310 spin_lock_irqsave(&phba->ndlp_lock, flags); 6311 NLP_CLR_NODE_ACT(ndlp); 6312 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6313 6314 /* free ndlp memory for final ndlp release */ 6315 if (NLP_CHK_FREE_REQ(ndlp)) { 6316 kfree(ndlp->lat_data); 6317 if (phba->sli_rev == LPFC_SLI_REV4) 6318 mempool_free(ndlp->active_rrqs_xri_bitmap, 6319 ndlp->phba->active_rrq_pool); 6320 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6321 } 6322 } 6323 6324 /* This routine bumps the reference count for a ndlp structure to ensure 6325 * that one discovery thread won't free a ndlp while another discovery thread 6326 * is using it. 6327 */ 6328 struct lpfc_nodelist * 6329 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6330 { 6331 struct lpfc_hba *phba; 6332 unsigned long flags; 6333 6334 if (ndlp) { 6335 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6336 "node get: did:x%x flg:x%x refcnt:x%x", 6337 ndlp->nlp_DID, ndlp->nlp_flag, 6338 kref_read(&ndlp->kref)); 6339 /* The check of ndlp usage to prevent incrementing the 6340 * ndlp reference count that is in the process of being 6341 * released. 6342 */ 6343 phba = ndlp->phba; 6344 spin_lock_irqsave(&phba->ndlp_lock, flags); 6345 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6346 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6347 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6348 "0276 %s: ndlp:x%px " 6349 "usgmap:x%x refcnt:%d\n", 6350 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6351 kref_read(&ndlp->kref)); 6352 return NULL; 6353 } else 6354 kref_get(&ndlp->kref); 6355 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6356 } 6357 return ndlp; 6358 } 6359 6360 /* This routine decrements the reference count for a ndlp structure. If the 6361 * count goes to 0, this indicates the the associated nodelist should be 6362 * freed. Returning 1 indicates the ndlp resource has been released; on the 6363 * other hand, returning 0 indicates the ndlp resource has not been released 6364 * yet. 6365 */ 6366 int 6367 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6368 { 6369 struct lpfc_hba *phba; 6370 unsigned long flags; 6371 6372 if (!ndlp) 6373 return 1; 6374 6375 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6376 "node put: did:x%x flg:x%x refcnt:x%x", 6377 ndlp->nlp_DID, ndlp->nlp_flag, 6378 kref_read(&ndlp->kref)); 6379 phba = ndlp->phba; 6380 spin_lock_irqsave(&phba->ndlp_lock, flags); 6381 /* Check the ndlp memory free acknowledge flag to avoid the 6382 * possible race condition that kref_put got invoked again 6383 * after previous one has done ndlp memory free. 6384 */ 6385 if (NLP_CHK_FREE_ACK(ndlp)) { 6386 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6387 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6388 "0274 %s: ndlp:x%px " 6389 "usgmap:x%x refcnt:%d\n", 6390 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6391 kref_read(&ndlp->kref)); 6392 return 1; 6393 } 6394 /* Check the ndlp inactivate log flag to avoid the possible 6395 * race condition that kref_put got invoked again after ndlp 6396 * is already in inactivating state. 6397 */ 6398 if (NLP_CHK_IACT_REQ(ndlp)) { 6399 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6400 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6401 "0275 %s: ndlp:x%px " 6402 "usgmap:x%x refcnt:%d\n", 6403 __func__, (void *)ndlp, ndlp->nlp_usg_map, 6404 kref_read(&ndlp->kref)); 6405 return 1; 6406 } 6407 /* For last put, mark the ndlp usage flags to make sure no 6408 * other kref_get and kref_put on the same ndlp shall get 6409 * in between the process when the final kref_put has been 6410 * invoked on this ndlp. 6411 */ 6412 if (kref_read(&ndlp->kref) == 1) { 6413 /* Indicate ndlp is put to inactive state. */ 6414 NLP_SET_IACT_REQ(ndlp); 6415 /* Acknowledge ndlp memory free has been seen. */ 6416 if (NLP_CHK_FREE_REQ(ndlp)) 6417 NLP_SET_FREE_ACK(ndlp); 6418 } 6419 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6420 /* Note, the kref_put returns 1 when decrementing a reference 6421 * count that was 1, it invokes the release callback function, 6422 * but it still left the reference count as 1 (not actually 6423 * performs the last decrementation). Otherwise, it actually 6424 * decrements the reference count and returns 0. 6425 */ 6426 return kref_put(&ndlp->kref, lpfc_nlp_release); 6427 } 6428 6429 /* This routine free's the specified nodelist if it is not in use 6430 * by any other discovery thread. This routine returns 1 if the 6431 * ndlp has been freed. A return value of 0 indicates the ndlp is 6432 * not yet been released. 6433 */ 6434 int 6435 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6436 { 6437 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6438 "node not used: did:x%x flg:x%x refcnt:x%x", 6439 ndlp->nlp_DID, ndlp->nlp_flag, 6440 kref_read(&ndlp->kref)); 6441 if (kref_read(&ndlp->kref) == 1) 6442 if (lpfc_nlp_put(ndlp)) 6443 return 1; 6444 return 0; 6445 } 6446 6447 /** 6448 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6449 * @phba: Pointer to hba context object. 6450 * 6451 * This function iterate through all FC nodes associated 6452 * will all vports to check if there is any node with 6453 * fc_rports associated with it. If there is an fc_rport 6454 * associated with the node, then the node is either in 6455 * discovered state or its devloss_timer is pending. 6456 */ 6457 static int 6458 lpfc_fcf_inuse(struct lpfc_hba *phba) 6459 { 6460 struct lpfc_vport **vports; 6461 int i, ret = 0; 6462 struct lpfc_nodelist *ndlp; 6463 struct Scsi_Host *shost; 6464 6465 vports = lpfc_create_vport_work_array(phba); 6466 6467 /* If driver cannot allocate memory, indicate fcf is in use */ 6468 if (!vports) 6469 return 1; 6470 6471 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6472 shost = lpfc_shost_from_vport(vports[i]); 6473 spin_lock_irq(shost->host_lock); 6474 /* 6475 * IF the CVL_RCVD bit is not set then we have sent the 6476 * flogi. 6477 * If dev_loss fires while we are waiting we do not want to 6478 * unreg the fcf. 6479 */ 6480 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6481 spin_unlock_irq(shost->host_lock); 6482 ret = 1; 6483 goto out; 6484 } 6485 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6486 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6487 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6488 ret = 1; 6489 spin_unlock_irq(shost->host_lock); 6490 goto out; 6491 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6492 ret = 1; 6493 lpfc_printf_log(phba, KERN_INFO, 6494 LOG_NODE | LOG_DISCOVERY, 6495 "2624 RPI %x DID %x flag %x " 6496 "still logged in\n", 6497 ndlp->nlp_rpi, ndlp->nlp_DID, 6498 ndlp->nlp_flag); 6499 } 6500 } 6501 spin_unlock_irq(shost->host_lock); 6502 } 6503 out: 6504 lpfc_destroy_vport_work_array(phba, vports); 6505 return ret; 6506 } 6507 6508 /** 6509 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6510 * @phba: Pointer to hba context object. 6511 * @mboxq: Pointer to mailbox object. 6512 * 6513 * This function frees memory associated with the mailbox command. 6514 */ 6515 void 6516 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6517 { 6518 struct lpfc_vport *vport = mboxq->vport; 6519 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6520 6521 if (mboxq->u.mb.mbxStatus) { 6522 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6523 "2555 UNREG_VFI mbxStatus error x%x " 6524 "HBA state x%x\n", 6525 mboxq->u.mb.mbxStatus, vport->port_state); 6526 } 6527 spin_lock_irq(shost->host_lock); 6528 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6529 spin_unlock_irq(shost->host_lock); 6530 mempool_free(mboxq, phba->mbox_mem_pool); 6531 return; 6532 } 6533 6534 /** 6535 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 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 static void 6542 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6543 { 6544 struct lpfc_vport *vport = mboxq->vport; 6545 6546 if (mboxq->u.mb.mbxStatus) { 6547 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6548 "2550 UNREG_FCFI mbxStatus error x%x " 6549 "HBA state x%x\n", 6550 mboxq->u.mb.mbxStatus, vport->port_state); 6551 } 6552 mempool_free(mboxq, phba->mbox_mem_pool); 6553 return; 6554 } 6555 6556 /** 6557 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6558 * @phba: Pointer to hba context object. 6559 * 6560 * This function prepare the HBA for unregistering the currently registered 6561 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6562 * VFIs. 6563 */ 6564 int 6565 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6566 { 6567 struct lpfc_vport **vports; 6568 struct lpfc_nodelist *ndlp; 6569 struct Scsi_Host *shost; 6570 int i = 0, rc; 6571 6572 /* Unregister RPIs */ 6573 if (lpfc_fcf_inuse(phba)) 6574 lpfc_unreg_hba_rpis(phba); 6575 6576 /* At this point, all discovery is aborted */ 6577 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6578 6579 /* Unregister VPIs */ 6580 vports = lpfc_create_vport_work_array(phba); 6581 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6582 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6583 /* Stop FLOGI/FDISC retries */ 6584 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6585 if (ndlp) 6586 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6587 lpfc_cleanup_pending_mbox(vports[i]); 6588 if (phba->sli_rev == LPFC_SLI_REV4) 6589 lpfc_sli4_unreg_all_rpis(vports[i]); 6590 lpfc_mbx_unreg_vpi(vports[i]); 6591 shost = lpfc_shost_from_vport(vports[i]); 6592 spin_lock_irq(shost->host_lock); 6593 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6594 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6595 spin_unlock_irq(shost->host_lock); 6596 } 6597 lpfc_destroy_vport_work_array(phba, vports); 6598 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6599 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6600 if (ndlp) 6601 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6602 lpfc_cleanup_pending_mbox(phba->pport); 6603 if (phba->sli_rev == LPFC_SLI_REV4) 6604 lpfc_sli4_unreg_all_rpis(phba->pport); 6605 lpfc_mbx_unreg_vpi(phba->pport); 6606 shost = lpfc_shost_from_vport(phba->pport); 6607 spin_lock_irq(shost->host_lock); 6608 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6609 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6610 spin_unlock_irq(shost->host_lock); 6611 } 6612 6613 /* Cleanup any outstanding ELS commands */ 6614 lpfc_els_flush_all_cmd(phba); 6615 6616 /* Unregister the physical port VFI */ 6617 rc = lpfc_issue_unreg_vfi(phba->pport); 6618 return rc; 6619 } 6620 6621 /** 6622 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6623 * @phba: Pointer to hba context object. 6624 * 6625 * This function issues synchronous unregister FCF mailbox command to HBA to 6626 * unregister the currently registered FCF record. The driver does not reset 6627 * the driver FCF usage state flags. 6628 * 6629 * Return 0 if successfully issued, none-zero otherwise. 6630 */ 6631 int 6632 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6633 { 6634 LPFC_MBOXQ_t *mbox; 6635 int rc; 6636 6637 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6638 if (!mbox) { 6639 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6640 "2551 UNREG_FCFI mbox allocation failed" 6641 "HBA state x%x\n", phba->pport->port_state); 6642 return -ENOMEM; 6643 } 6644 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6645 mbox->vport = phba->pport; 6646 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6647 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6648 6649 if (rc == MBX_NOT_FINISHED) { 6650 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6651 "2552 Unregister FCFI command failed rc x%x " 6652 "HBA state x%x\n", 6653 rc, phba->pport->port_state); 6654 return -EINVAL; 6655 } 6656 return 0; 6657 } 6658 6659 /** 6660 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6661 * @phba: Pointer to hba context object. 6662 * 6663 * This function unregisters the currently reigstered FCF. This function 6664 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6665 */ 6666 void 6667 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6668 { 6669 int rc; 6670 6671 /* Preparation for unregistering fcf */ 6672 rc = lpfc_unregister_fcf_prep(phba); 6673 if (rc) { 6674 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6675 "2748 Failed to prepare for unregistering " 6676 "HBA's FCF record: rc=%d\n", rc); 6677 return; 6678 } 6679 6680 /* Now, unregister FCF record and reset HBA FCF state */ 6681 rc = lpfc_sli4_unregister_fcf(phba); 6682 if (rc) 6683 return; 6684 /* Reset HBA FCF states after successful unregister FCF */ 6685 phba->fcf.fcf_flag = 0; 6686 phba->fcf.current_rec.flag = 0; 6687 6688 /* 6689 * If driver is not unloading, check if there is any other 6690 * FCF record that can be used for discovery. 6691 */ 6692 if ((phba->pport->load_flag & FC_UNLOADING) || 6693 (phba->link_state < LPFC_LINK_UP)) 6694 return; 6695 6696 /* This is considered as the initial FCF discovery scan */ 6697 spin_lock_irq(&phba->hbalock); 6698 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6699 spin_unlock_irq(&phba->hbalock); 6700 6701 /* Reset FCF roundrobin bmask for new discovery */ 6702 lpfc_sli4_clear_fcf_rr_bmask(phba); 6703 6704 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6705 6706 if (rc) { 6707 spin_lock_irq(&phba->hbalock); 6708 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6709 spin_unlock_irq(&phba->hbalock); 6710 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6711 "2553 lpfc_unregister_unused_fcf failed " 6712 "to read FCF record HBA state x%x\n", 6713 phba->pport->port_state); 6714 } 6715 } 6716 6717 /** 6718 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6719 * @phba: Pointer to hba context object. 6720 * 6721 * This function just unregisters the currently reigstered FCF. It does not 6722 * try to find another FCF for discovery. 6723 */ 6724 void 6725 lpfc_unregister_fcf(struct lpfc_hba *phba) 6726 { 6727 int rc; 6728 6729 /* Preparation for unregistering fcf */ 6730 rc = lpfc_unregister_fcf_prep(phba); 6731 if (rc) { 6732 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6733 "2749 Failed to prepare for unregistering " 6734 "HBA's FCF record: rc=%d\n", rc); 6735 return; 6736 } 6737 6738 /* Now, unregister FCF record and reset HBA FCF state */ 6739 rc = lpfc_sli4_unregister_fcf(phba); 6740 if (rc) 6741 return; 6742 /* Set proper HBA FCF states after successful unregister FCF */ 6743 spin_lock_irq(&phba->hbalock); 6744 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6745 spin_unlock_irq(&phba->hbalock); 6746 } 6747 6748 /** 6749 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6750 * @phba: Pointer to hba context object. 6751 * 6752 * This function check if there are any connected remote port for the FCF and 6753 * if all the devices are disconnected, this function unregister FCFI. 6754 * This function also tries to use another FCF for discovery. 6755 */ 6756 void 6757 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6758 { 6759 /* 6760 * If HBA is not running in FIP mode, if HBA does not support 6761 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6762 * registered, do nothing. 6763 */ 6764 spin_lock_irq(&phba->hbalock); 6765 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6766 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6767 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6768 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6769 (phba->pport->port_state == LPFC_FLOGI)) { 6770 spin_unlock_irq(&phba->hbalock); 6771 return; 6772 } 6773 spin_unlock_irq(&phba->hbalock); 6774 6775 if (lpfc_fcf_inuse(phba)) 6776 return; 6777 6778 lpfc_unregister_fcf_rescan(phba); 6779 } 6780 6781 /** 6782 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6783 * @phba: Pointer to hba context object. 6784 * @buff: Buffer containing the FCF connection table as in the config 6785 * region. 6786 * This function create driver data structure for the FCF connection 6787 * record table read from config region 23. 6788 */ 6789 static void 6790 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6791 uint8_t *buff) 6792 { 6793 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6794 struct lpfc_fcf_conn_hdr *conn_hdr; 6795 struct lpfc_fcf_conn_rec *conn_rec; 6796 uint32_t record_count; 6797 int i; 6798 6799 /* Free the current connect table */ 6800 list_for_each_entry_safe(conn_entry, next_conn_entry, 6801 &phba->fcf_conn_rec_list, list) { 6802 list_del_init(&conn_entry->list); 6803 kfree(conn_entry); 6804 } 6805 6806 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6807 record_count = conn_hdr->length * sizeof(uint32_t)/ 6808 sizeof(struct lpfc_fcf_conn_rec); 6809 6810 conn_rec = (struct lpfc_fcf_conn_rec *) 6811 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6812 6813 for (i = 0; i < record_count; i++) { 6814 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6815 continue; 6816 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6817 GFP_KERNEL); 6818 if (!conn_entry) { 6819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6820 "2566 Failed to allocate connection" 6821 " table entry\n"); 6822 return; 6823 } 6824 6825 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6826 sizeof(struct lpfc_fcf_conn_rec)); 6827 list_add_tail(&conn_entry->list, 6828 &phba->fcf_conn_rec_list); 6829 } 6830 6831 if (!list_empty(&phba->fcf_conn_rec_list)) { 6832 i = 0; 6833 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6834 list) { 6835 conn_rec = &conn_entry->conn_rec; 6836 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6837 "3345 FCF connection list rec[%02d]: " 6838 "flags:x%04x, vtag:x%04x, " 6839 "fabric_name:x%02x:%02x:%02x:%02x:" 6840 "%02x:%02x:%02x:%02x, " 6841 "switch_name:x%02x:%02x:%02x:%02x:" 6842 "%02x:%02x:%02x:%02x\n", i++, 6843 conn_rec->flags, conn_rec->vlan_tag, 6844 conn_rec->fabric_name[0], 6845 conn_rec->fabric_name[1], 6846 conn_rec->fabric_name[2], 6847 conn_rec->fabric_name[3], 6848 conn_rec->fabric_name[4], 6849 conn_rec->fabric_name[5], 6850 conn_rec->fabric_name[6], 6851 conn_rec->fabric_name[7], 6852 conn_rec->switch_name[0], 6853 conn_rec->switch_name[1], 6854 conn_rec->switch_name[2], 6855 conn_rec->switch_name[3], 6856 conn_rec->switch_name[4], 6857 conn_rec->switch_name[5], 6858 conn_rec->switch_name[6], 6859 conn_rec->switch_name[7]); 6860 } 6861 } 6862 } 6863 6864 /** 6865 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6866 * @phba: Pointer to hba context object. 6867 * @buff: Buffer containing the FCoE parameter data structure. 6868 * 6869 * This function update driver data structure with config 6870 * parameters read from config region 23. 6871 */ 6872 static void 6873 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6874 uint8_t *buff) 6875 { 6876 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6877 struct lpfc_fcoe_params *fcoe_param; 6878 6879 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6880 buff; 6881 fcoe_param = (struct lpfc_fcoe_params *) 6882 (buff + sizeof(struct lpfc_fip_param_hdr)); 6883 6884 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6885 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6886 return; 6887 6888 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6889 phba->valid_vlan = 1; 6890 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6891 0xFFF; 6892 } 6893 6894 phba->fc_map[0] = fcoe_param->fc_map[0]; 6895 phba->fc_map[1] = fcoe_param->fc_map[1]; 6896 phba->fc_map[2] = fcoe_param->fc_map[2]; 6897 return; 6898 } 6899 6900 /** 6901 * lpfc_get_rec_conf23 - Get a record type in config region data. 6902 * @buff: Buffer containing config region 23 data. 6903 * @size: Size of the data buffer. 6904 * @rec_type: Record type to be searched. 6905 * 6906 * This function searches config region data to find the beginning 6907 * of the record specified by record_type. If record found, this 6908 * function return pointer to the record else return NULL. 6909 */ 6910 static uint8_t * 6911 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6912 { 6913 uint32_t offset = 0, rec_length; 6914 6915 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6916 (size < sizeof(uint32_t))) 6917 return NULL; 6918 6919 rec_length = buff[offset + 1]; 6920 6921 /* 6922 * One TLV record has one word header and number of data words 6923 * specified in the rec_length field of the record header. 6924 */ 6925 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6926 <= size) { 6927 if (buff[offset] == rec_type) 6928 return &buff[offset]; 6929 6930 if (buff[offset] == LPFC_REGION23_LAST_REC) 6931 return NULL; 6932 6933 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6934 rec_length = buff[offset + 1]; 6935 } 6936 return NULL; 6937 } 6938 6939 /** 6940 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6941 * @phba: Pointer to lpfc_hba data structure. 6942 * @buff: Buffer containing config region 23 data. 6943 * @size: Size of the data buffer. 6944 * 6945 * This function parses the FCoE config parameters in config region 23 and 6946 * populate driver data structure with the parameters. 6947 */ 6948 void 6949 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6950 uint8_t *buff, 6951 uint32_t size) 6952 { 6953 uint32_t offset = 0; 6954 uint8_t *rec_ptr; 6955 6956 /* 6957 * If data size is less than 2 words signature and version cannot be 6958 * verified. 6959 */ 6960 if (size < 2*sizeof(uint32_t)) 6961 return; 6962 6963 /* Check the region signature first */ 6964 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6966 "2567 Config region 23 has bad signature\n"); 6967 return; 6968 } 6969 6970 offset += 4; 6971 6972 /* Check the data structure version */ 6973 if (buff[offset] != LPFC_REGION23_VERSION) { 6974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6975 "2568 Config region 23 has bad version\n"); 6976 return; 6977 } 6978 offset += 4; 6979 6980 /* Read FCoE param record */ 6981 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6982 size - offset, FCOE_PARAM_TYPE); 6983 if (rec_ptr) 6984 lpfc_read_fcoe_param(phba, rec_ptr); 6985 6986 /* Read FCF connection table */ 6987 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6988 size - offset, FCOE_CONN_TBL_TYPE); 6989 if (rec_ptr) 6990 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6991 6992 } 6993