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