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