1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited 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 (!(vport->load_flag & FC_UNLOADING) && 317 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 318 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 319 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 320 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 321 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 322 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 323 324 return fcf_inuse; 325 } 326 327 /** 328 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 329 * @phba: Pointer to hba context object. 330 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 331 * @nlp_did: remote node identifer with devloss timeout. 332 * 333 * This function is called from the worker thread after invoking devloss 334 * timeout handler and releasing the reference count for the ndlp with 335 * which the devloss timeout was handled for SLI4 host. For the devloss 336 * timeout of the last remote node which had been in use of FCF, when this 337 * routine is invoked, it shall be guaranteed that none of the remote are 338 * in-use of FCF. When devloss timeout to the last remote using the FCF, 339 * if the FIP engine is neither in FCF table scan process nor roundrobin 340 * failover process, the in-use FCF shall be unregistered. If the FIP 341 * engine is in FCF discovery process, the devloss timeout state shall 342 * be set for either the FCF table scan process or roundrobin failover 343 * process to unregister the in-use FCF. 344 **/ 345 static void 346 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 347 uint32_t nlp_did) 348 { 349 /* If devloss timeout happened to a remote node when FCF had no 350 * longer been in-use, do nothing. 351 */ 352 if (!fcf_inuse) 353 return; 354 355 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 356 spin_lock_irq(&phba->hbalock); 357 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 358 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 359 spin_unlock_irq(&phba->hbalock); 360 return; 361 } 362 phba->hba_flag |= HBA_DEVLOSS_TMO; 363 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 364 "2847 Last remote node (x%x) using " 365 "FCF devloss tmo\n", nlp_did); 366 } 367 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 368 spin_unlock_irq(&phba->hbalock); 369 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 370 "2868 Devloss tmo to FCF rediscovery " 371 "in progress\n"); 372 return; 373 } 374 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 375 spin_unlock_irq(&phba->hbalock); 376 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 377 "2869 Devloss tmo to idle FIP engine, " 378 "unreg in-use FCF and rescan.\n"); 379 /* Unregister in-use FCF and rescan */ 380 lpfc_unregister_fcf_rescan(phba); 381 return; 382 } 383 spin_unlock_irq(&phba->hbalock); 384 if (phba->hba_flag & FCF_TS_INPROG) 385 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 386 "2870 FCF table scan in progress\n"); 387 if (phba->hba_flag & FCF_RR_INPROG) 388 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 389 "2871 FLOGI roundrobin FCF failover " 390 "in progress\n"); 391 } 392 lpfc_unregister_unused_fcf(phba); 393 } 394 395 /** 396 * lpfc_alloc_fast_evt - Allocates data structure for posting event 397 * @phba: Pointer to hba context object. 398 * 399 * This function is called from the functions which need to post 400 * events from interrupt context. This function allocates data 401 * structure required for posting event. It also keeps track of 402 * number of events pending and prevent event storm when there are 403 * too many events. 404 **/ 405 struct lpfc_fast_path_event * 406 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 407 struct lpfc_fast_path_event *ret; 408 409 /* If there are lot of fast event do not exhaust memory due to this */ 410 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 411 return NULL; 412 413 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 414 GFP_ATOMIC); 415 if (ret) { 416 atomic_inc(&phba->fast_event_count); 417 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 418 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 419 } 420 return ret; 421 } 422 423 /** 424 * lpfc_free_fast_evt - Frees event data structure 425 * @phba: Pointer to hba context object. 426 * @evt: Event object which need to be freed. 427 * 428 * This function frees the data structure required for posting 429 * events. 430 **/ 431 void 432 lpfc_free_fast_evt(struct lpfc_hba *phba, 433 struct lpfc_fast_path_event *evt) { 434 435 atomic_dec(&phba->fast_event_count); 436 kfree(evt); 437 } 438 439 /** 440 * lpfc_send_fastpath_evt - Posts events generated from fast path 441 * @phba: Pointer to hba context object. 442 * @evtp: Event data structure. 443 * 444 * This function is called from worker thread, when the interrupt 445 * context need to post an event. This function posts the event 446 * to fc transport netlink interface. 447 **/ 448 static void 449 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 450 struct lpfc_work_evt *evtp) 451 { 452 unsigned long evt_category, evt_sub_category; 453 struct lpfc_fast_path_event *fast_evt_data; 454 char *evt_data; 455 uint32_t evt_data_size; 456 struct Scsi_Host *shost; 457 458 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 459 work_evt); 460 461 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 462 evt_sub_category = (unsigned long) fast_evt_data->un. 463 fabric_evt.subcategory; 464 shost = lpfc_shost_from_vport(fast_evt_data->vport); 465 if (evt_category == FC_REG_FABRIC_EVENT) { 466 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 467 evt_data = (char *) &fast_evt_data->un.read_check_error; 468 evt_data_size = sizeof(fast_evt_data->un. 469 read_check_error); 470 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 471 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 472 evt_data = (char *) &fast_evt_data->un.fabric_evt; 473 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 474 } else { 475 lpfc_free_fast_evt(phba, fast_evt_data); 476 return; 477 } 478 } else if (evt_category == FC_REG_SCSI_EVENT) { 479 switch (evt_sub_category) { 480 case LPFC_EVENT_QFULL: 481 case LPFC_EVENT_DEVBSY: 482 evt_data = (char *) &fast_evt_data->un.scsi_evt; 483 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 484 break; 485 case LPFC_EVENT_CHECK_COND: 486 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 487 evt_data_size = sizeof(fast_evt_data->un. 488 check_cond_evt); 489 break; 490 case LPFC_EVENT_VARQUEDEPTH: 491 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 492 evt_data_size = sizeof(fast_evt_data->un. 493 queue_depth_evt); 494 break; 495 default: 496 lpfc_free_fast_evt(phba, fast_evt_data); 497 return; 498 } 499 } else { 500 lpfc_free_fast_evt(phba, fast_evt_data); 501 return; 502 } 503 504 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 505 fc_host_post_vendor_event(shost, 506 fc_get_event_number(), 507 evt_data_size, 508 evt_data, 509 LPFC_NL_VENDOR_ID); 510 511 lpfc_free_fast_evt(phba, fast_evt_data); 512 return; 513 } 514 515 static void 516 lpfc_work_list_done(struct lpfc_hba *phba) 517 { 518 struct lpfc_work_evt *evtp = NULL; 519 struct lpfc_nodelist *ndlp; 520 int free_evt; 521 int fcf_inuse; 522 uint32_t nlp_did; 523 524 spin_lock_irq(&phba->hbalock); 525 while (!list_empty(&phba->work_list)) { 526 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 527 evt_listp); 528 spin_unlock_irq(&phba->hbalock); 529 free_evt = 1; 530 switch (evtp->evt) { 531 case LPFC_EVT_ELS_RETRY: 532 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 533 lpfc_els_retry_delay_handler(ndlp); 534 free_evt = 0; /* evt is part of ndlp */ 535 /* decrement the node reference count held 536 * for this queued work 537 */ 538 lpfc_nlp_put(ndlp); 539 break; 540 case LPFC_EVT_DEV_LOSS: 541 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 542 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 543 free_evt = 0; 544 /* decrement the node reference count held for 545 * this queued work 546 */ 547 nlp_did = ndlp->nlp_DID; 548 lpfc_nlp_put(ndlp); 549 if (phba->sli_rev == LPFC_SLI_REV4) 550 lpfc_sli4_post_dev_loss_tmo_handler(phba, 551 fcf_inuse, 552 nlp_did); 553 break; 554 case LPFC_EVT_ONLINE: 555 if (phba->link_state < LPFC_LINK_DOWN) 556 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 557 else 558 *(int *) (evtp->evt_arg1) = 0; 559 complete((struct completion *)(evtp->evt_arg2)); 560 break; 561 case LPFC_EVT_OFFLINE_PREP: 562 if (phba->link_state >= LPFC_LINK_DOWN) 563 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 564 *(int *)(evtp->evt_arg1) = 0; 565 complete((struct completion *)(evtp->evt_arg2)); 566 break; 567 case LPFC_EVT_OFFLINE: 568 lpfc_offline(phba); 569 lpfc_sli_brdrestart(phba); 570 *(int *)(evtp->evt_arg1) = 571 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 572 lpfc_unblock_mgmt_io(phba); 573 complete((struct completion *)(evtp->evt_arg2)); 574 break; 575 case LPFC_EVT_WARM_START: 576 lpfc_offline(phba); 577 lpfc_reset_barrier(phba); 578 lpfc_sli_brdreset(phba); 579 lpfc_hba_down_post(phba); 580 *(int *)(evtp->evt_arg1) = 581 lpfc_sli_brdready(phba, HS_MBRDY); 582 lpfc_unblock_mgmt_io(phba); 583 complete((struct completion *)(evtp->evt_arg2)); 584 break; 585 case LPFC_EVT_KILL: 586 lpfc_offline(phba); 587 *(int *)(evtp->evt_arg1) 588 = (phba->pport->stopped) 589 ? 0 : lpfc_sli_brdkill(phba); 590 lpfc_unblock_mgmt_io(phba); 591 complete((struct completion *)(evtp->evt_arg2)); 592 break; 593 case LPFC_EVT_FASTPATH_MGMT_EVT: 594 lpfc_send_fastpath_evt(phba, evtp); 595 free_evt = 0; 596 break; 597 case LPFC_EVT_RESET_HBA: 598 if (!(phba->pport->load_flag & FC_UNLOADING)) 599 lpfc_reset_hba(phba); 600 break; 601 } 602 if (free_evt) 603 kfree(evtp); 604 spin_lock_irq(&phba->hbalock); 605 } 606 spin_unlock_irq(&phba->hbalock); 607 608 } 609 610 static void 611 lpfc_work_done(struct lpfc_hba *phba) 612 { 613 struct lpfc_sli_ring *pring; 614 uint32_t ha_copy, status, control, work_port_events; 615 struct lpfc_vport **vports; 616 struct lpfc_vport *vport; 617 int i; 618 619 spin_lock_irq(&phba->hbalock); 620 ha_copy = phba->work_ha; 621 phba->work_ha = 0; 622 spin_unlock_irq(&phba->hbalock); 623 624 /* First, try to post the next mailbox command to SLI4 device */ 625 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 626 lpfc_sli4_post_async_mbox(phba); 627 628 if (ha_copy & HA_ERATT) 629 /* Handle the error attention event */ 630 lpfc_handle_eratt(phba); 631 632 if (ha_copy & HA_MBATT) 633 lpfc_sli_handle_mb_event(phba); 634 635 if (ha_copy & HA_LATT) 636 lpfc_handle_latt(phba); 637 638 /* Process SLI4 events */ 639 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 640 if (phba->hba_flag & HBA_RRQ_ACTIVE) 641 lpfc_handle_rrq_active(phba); 642 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 643 lpfc_sli4_fcp_xri_abort_event_proc(phba); 644 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 645 lpfc_sli4_els_xri_abort_event_proc(phba); 646 if (phba->hba_flag & ASYNC_EVENT) 647 lpfc_sli4_async_event_proc(phba); 648 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 649 spin_lock_irq(&phba->hbalock); 650 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 651 spin_unlock_irq(&phba->hbalock); 652 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 653 } 654 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 655 lpfc_sli4_fcf_redisc_event_proc(phba); 656 } 657 658 vports = lpfc_create_vport_work_array(phba); 659 if (vports != NULL) 660 for (i = 0; i <= phba->max_vports; i++) { 661 /* 662 * We could have no vports in array if unloading, so if 663 * this happens then just use the pport 664 */ 665 if (vports[i] == NULL && i == 0) 666 vport = phba->pport; 667 else 668 vport = vports[i]; 669 if (vport == NULL) 670 break; 671 spin_lock_irq(&vport->work_port_lock); 672 work_port_events = vport->work_port_events; 673 vport->work_port_events &= ~work_port_events; 674 spin_unlock_irq(&vport->work_port_lock); 675 if (work_port_events & WORKER_DISC_TMO) 676 lpfc_disc_timeout_handler(vport); 677 if (work_port_events & WORKER_ELS_TMO) 678 lpfc_els_timeout_handler(vport); 679 if (work_port_events & WORKER_HB_TMO) 680 lpfc_hb_timeout_handler(phba); 681 if (work_port_events & WORKER_MBOX_TMO) 682 lpfc_mbox_timeout_handler(phba); 683 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 684 lpfc_unblock_fabric_iocbs(phba); 685 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 686 lpfc_ramp_down_queue_handler(phba); 687 if (work_port_events & WORKER_DELAYED_DISC_TMO) 688 lpfc_delayed_disc_timeout_handler(vport); 689 } 690 lpfc_destroy_vport_work_array(phba, vports); 691 692 pring = lpfc_phba_elsring(phba); 693 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 694 status >>= (4*LPFC_ELS_RING); 695 if ((status & HA_RXMASK) || 696 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 697 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 698 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 699 pring->flag |= LPFC_DEFERRED_RING_EVENT; 700 /* Set the lpfc data pending flag */ 701 set_bit(LPFC_DATA_READY, &phba->data_flags); 702 } else { 703 if (phba->link_state >= LPFC_LINK_UP) { 704 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 705 lpfc_sli_handle_slow_ring_event(phba, pring, 706 (status & 707 HA_RXMASK)); 708 } 709 } 710 if ((phba->sli_rev == LPFC_SLI_REV4) && 711 (!list_empty(&pring->txq))) 712 lpfc_drain_txq(phba); 713 /* 714 * Turn on Ring interrupts 715 */ 716 if (phba->sli_rev <= LPFC_SLI_REV3) { 717 spin_lock_irq(&phba->hbalock); 718 control = readl(phba->HCregaddr); 719 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 720 lpfc_debugfs_slow_ring_trc(phba, 721 "WRK Enable ring: cntl:x%x hacopy:x%x", 722 control, ha_copy, 0); 723 724 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 725 writel(control, phba->HCregaddr); 726 readl(phba->HCregaddr); /* flush */ 727 } else { 728 lpfc_debugfs_slow_ring_trc(phba, 729 "WRK Ring ok: cntl:x%x hacopy:x%x", 730 control, ha_copy, 0); 731 } 732 spin_unlock_irq(&phba->hbalock); 733 } 734 } 735 lpfc_work_list_done(phba); 736 } 737 738 int 739 lpfc_do_work(void *p) 740 { 741 struct lpfc_hba *phba = p; 742 int rc; 743 744 set_user_nice(current, MIN_NICE); 745 current->flags |= PF_NOFREEZE; 746 phba->data_flags = 0; 747 748 while (!kthread_should_stop()) { 749 /* wait and check worker queue activities */ 750 rc = wait_event_interruptible(phba->work_waitq, 751 (test_and_clear_bit(LPFC_DATA_READY, 752 &phba->data_flags) 753 || kthread_should_stop())); 754 /* Signal wakeup shall terminate the worker thread */ 755 if (rc) { 756 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 757 "0433 Wakeup on signal: rc=x%x\n", rc); 758 break; 759 } 760 761 /* Attend pending lpfc data processing */ 762 lpfc_work_done(phba); 763 } 764 phba->worker_thread = NULL; 765 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 766 "0432 Worker thread stopped.\n"); 767 return 0; 768 } 769 770 /* 771 * This is only called to handle FC worker events. Since this a rare 772 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 773 * embedding it in the IOCB. 774 */ 775 int 776 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 777 uint32_t evt) 778 { 779 struct lpfc_work_evt *evtp; 780 unsigned long flags; 781 782 /* 783 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 784 * be queued to worker thread for processing 785 */ 786 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 787 if (!evtp) 788 return 0; 789 790 evtp->evt_arg1 = arg1; 791 evtp->evt_arg2 = arg2; 792 evtp->evt = evt; 793 794 spin_lock_irqsave(&phba->hbalock, flags); 795 list_add_tail(&evtp->evt_listp, &phba->work_list); 796 spin_unlock_irqrestore(&phba->hbalock, flags); 797 798 lpfc_worker_wake_up(phba); 799 800 return 1; 801 } 802 803 void 804 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 805 { 806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 807 struct lpfc_hba *phba = vport->phba; 808 struct lpfc_nodelist *ndlp, *next_ndlp; 809 810 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 811 if (!NLP_CHK_NODE_ACT(ndlp)) 812 continue; 813 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 814 continue; 815 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 816 ((vport->port_type == LPFC_NPIV_PORT) && 817 (ndlp->nlp_DID == NameServer_DID))) 818 lpfc_unreg_rpi(vport, ndlp); 819 820 /* Leave Fabric nodes alone on link down */ 821 if ((phba->sli_rev < LPFC_SLI_REV4) && 822 (!remove && ndlp->nlp_type & NLP_FABRIC)) 823 continue; 824 lpfc_disc_state_machine(vport, ndlp, NULL, 825 remove 826 ? NLP_EVT_DEVICE_RM 827 : NLP_EVT_DEVICE_RECOVERY); 828 } 829 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 830 if (phba->sli_rev == LPFC_SLI_REV4) 831 lpfc_sli4_unreg_all_rpis(vport); 832 lpfc_mbx_unreg_vpi(vport); 833 spin_lock_irq(shost->host_lock); 834 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 835 spin_unlock_irq(shost->host_lock); 836 } 837 } 838 839 void 840 lpfc_port_link_failure(struct lpfc_vport *vport) 841 { 842 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 843 844 /* Cleanup any outstanding received buffers */ 845 lpfc_cleanup_rcv_buffers(vport); 846 847 /* Cleanup any outstanding RSCN activity */ 848 lpfc_els_flush_rscn(vport); 849 850 /* Cleanup any outstanding ELS commands */ 851 lpfc_els_flush_cmd(vport); 852 853 lpfc_cleanup_rpis(vport, 0); 854 855 /* Turn off discovery timer if its running */ 856 lpfc_can_disctmo(vport); 857 } 858 859 void 860 lpfc_linkdown_port(struct lpfc_vport *vport) 861 { 862 struct lpfc_hba *phba = vport->phba; 863 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 864 865 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 866 fc_host_post_event(shost, fc_get_event_number(), 867 FCH_EVT_LINKDOWN, 0); 868 869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 870 "Link Down: state:x%x rtry:x%x flg:x%x", 871 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 872 873 lpfc_port_link_failure(vport); 874 875 /* Stop delayed Nport discovery */ 876 spin_lock_irq(shost->host_lock); 877 vport->fc_flag &= ~FC_DISC_DELAYED; 878 spin_unlock_irq(shost->host_lock); 879 del_timer_sync(&vport->delayed_disc_tmo); 880 } 881 882 int 883 lpfc_linkdown(struct lpfc_hba *phba) 884 { 885 struct lpfc_vport *vport = phba->pport; 886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 887 struct lpfc_vport **vports; 888 LPFC_MBOXQ_t *mb; 889 int i; 890 891 if (phba->link_state == LPFC_LINK_DOWN) 892 return 0; 893 894 /* Block all SCSI stack I/Os */ 895 lpfc_scsi_dev_block(phba); 896 897 spin_lock_irq(&phba->hbalock); 898 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 899 spin_unlock_irq(&phba->hbalock); 900 if (phba->link_state > LPFC_LINK_DOWN) { 901 phba->link_state = LPFC_LINK_DOWN; 902 spin_lock_irq(shost->host_lock); 903 phba->pport->fc_flag &= ~FC_LBIT; 904 spin_unlock_irq(shost->host_lock); 905 } 906 vports = lpfc_create_vport_work_array(phba); 907 if (vports != NULL) { 908 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 909 /* Issue a LINK DOWN event to all nodes */ 910 lpfc_linkdown_port(vports[i]); 911 912 vports[i]->fc_myDID = 0; 913 914 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 915 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 916 if (phba->nvmet_support) 917 lpfc_nvmet_update_targetport(phba); 918 else 919 lpfc_nvme_update_localport(vports[i]); 920 } 921 } 922 } 923 lpfc_destroy_vport_work_array(phba, vports); 924 /* Clean up any firmware default rpi's */ 925 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 926 if (mb) { 927 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 928 mb->vport = vport; 929 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 930 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 931 == MBX_NOT_FINISHED) { 932 mempool_free(mb, phba->mbox_mem_pool); 933 } 934 } 935 936 /* Setup myDID for link up if we are in pt2pt mode */ 937 if (phba->pport->fc_flag & FC_PT2PT) { 938 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 939 if (mb) { 940 lpfc_config_link(phba, mb); 941 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 942 mb->vport = vport; 943 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 944 == MBX_NOT_FINISHED) { 945 mempool_free(mb, phba->mbox_mem_pool); 946 } 947 } 948 spin_lock_irq(shost->host_lock); 949 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 950 spin_unlock_irq(shost->host_lock); 951 } 952 return 0; 953 } 954 955 static void 956 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 957 { 958 struct lpfc_nodelist *ndlp; 959 960 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 961 if (!NLP_CHK_NODE_ACT(ndlp)) 962 continue; 963 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 964 continue; 965 if (ndlp->nlp_type & NLP_FABRIC) { 966 /* On Linkup its safe to clean up the ndlp 967 * from Fabric connections. 968 */ 969 if (ndlp->nlp_DID != Fabric_DID) 970 lpfc_unreg_rpi(vport, ndlp); 971 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 972 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 973 /* Fail outstanding IO now since device is 974 * marked for PLOGI. 975 */ 976 lpfc_unreg_rpi(vport, ndlp); 977 } 978 } 979 } 980 981 static void 982 lpfc_linkup_port(struct lpfc_vport *vport) 983 { 984 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 985 struct lpfc_hba *phba = vport->phba; 986 987 if ((vport->load_flag & FC_UNLOADING) != 0) 988 return; 989 990 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 991 "Link Up: top:x%x speed:x%x flg:x%x", 992 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 993 994 /* If NPIV is not enabled, only bring the physical port up */ 995 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 996 (vport != phba->pport)) 997 return; 998 999 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1000 fc_host_post_event(shost, fc_get_event_number(), 1001 FCH_EVT_LINKUP, 0); 1002 1003 spin_lock_irq(shost->host_lock); 1004 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1005 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1006 vport->fc_flag |= FC_NDISC_ACTIVE; 1007 vport->fc_ns_retry = 0; 1008 spin_unlock_irq(shost->host_lock); 1009 1010 if (vport->fc_flag & FC_LBIT) 1011 lpfc_linkup_cleanup_nodes(vport); 1012 1013 } 1014 1015 static int 1016 lpfc_linkup(struct lpfc_hba *phba) 1017 { 1018 struct lpfc_vport **vports; 1019 int i; 1020 1021 phba->link_state = LPFC_LINK_UP; 1022 1023 /* Unblock fabric iocbs if they are blocked */ 1024 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1025 del_timer_sync(&phba->fabric_block_timer); 1026 1027 vports = lpfc_create_vport_work_array(phba); 1028 if (vports != NULL) 1029 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1030 lpfc_linkup_port(vports[i]); 1031 lpfc_destroy_vport_work_array(phba, vports); 1032 1033 return 0; 1034 } 1035 1036 /* 1037 * This routine handles processing a CLEAR_LA mailbox 1038 * command upon completion. It is setup in the LPFC_MBOXQ 1039 * as the completion routine when the command is 1040 * handed off to the SLI layer. SLI3 only. 1041 */ 1042 static void 1043 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1044 { 1045 struct lpfc_vport *vport = pmb->vport; 1046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1047 struct lpfc_sli *psli = &phba->sli; 1048 MAILBOX_t *mb = &pmb->u.mb; 1049 uint32_t control; 1050 1051 /* Since we don't do discovery right now, turn these off here */ 1052 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1053 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1054 1055 /* Check for error */ 1056 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1057 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1058 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1059 "0320 CLEAR_LA mbxStatus error x%x hba " 1060 "state x%x\n", 1061 mb->mbxStatus, vport->port_state); 1062 phba->link_state = LPFC_HBA_ERROR; 1063 goto out; 1064 } 1065 1066 if (vport->port_type == LPFC_PHYSICAL_PORT) 1067 phba->link_state = LPFC_HBA_READY; 1068 1069 spin_lock_irq(&phba->hbalock); 1070 psli->sli_flag |= LPFC_PROCESS_LA; 1071 control = readl(phba->HCregaddr); 1072 control |= HC_LAINT_ENA; 1073 writel(control, phba->HCregaddr); 1074 readl(phba->HCregaddr); /* flush */ 1075 spin_unlock_irq(&phba->hbalock); 1076 mempool_free(pmb, phba->mbox_mem_pool); 1077 return; 1078 1079 out: 1080 /* Device Discovery completes */ 1081 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1082 "0225 Device Discovery completes\n"); 1083 mempool_free(pmb, phba->mbox_mem_pool); 1084 1085 spin_lock_irq(shost->host_lock); 1086 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1087 spin_unlock_irq(shost->host_lock); 1088 1089 lpfc_can_disctmo(vport); 1090 1091 /* turn on Link Attention interrupts */ 1092 1093 spin_lock_irq(&phba->hbalock); 1094 psli->sli_flag |= LPFC_PROCESS_LA; 1095 control = readl(phba->HCregaddr); 1096 control |= HC_LAINT_ENA; 1097 writel(control, phba->HCregaddr); 1098 readl(phba->HCregaddr); /* flush */ 1099 spin_unlock_irq(&phba->hbalock); 1100 1101 return; 1102 } 1103 1104 1105 void 1106 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1107 { 1108 struct lpfc_vport *vport = pmb->vport; 1109 1110 if (pmb->u.mb.mbxStatus) 1111 goto out; 1112 1113 mempool_free(pmb, phba->mbox_mem_pool); 1114 1115 /* don't perform discovery for SLI4 loopback diagnostic test */ 1116 if ((phba->sli_rev == LPFC_SLI_REV4) && 1117 !(phba->hba_flag & HBA_FCOE_MODE) && 1118 (phba->link_flag & LS_LOOPBACK_MODE)) 1119 return; 1120 1121 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1122 vport->fc_flag & FC_PUBLIC_LOOP && 1123 !(vport->fc_flag & FC_LBIT)) { 1124 /* Need to wait for FAN - use discovery timer 1125 * for timeout. port_state is identically 1126 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1127 */ 1128 lpfc_set_disctmo(vport); 1129 return; 1130 } 1131 1132 /* Start discovery by sending a FLOGI. port_state is identically 1133 * LPFC_FLOGI while waiting for FLOGI cmpl 1134 */ 1135 if (vport->port_state != LPFC_FLOGI) 1136 lpfc_initial_flogi(vport); 1137 else if (vport->fc_flag & FC_PT2PT) 1138 lpfc_disc_start(vport); 1139 return; 1140 1141 out: 1142 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1143 "0306 CONFIG_LINK mbxStatus error x%x " 1144 "HBA state x%x\n", 1145 pmb->u.mb.mbxStatus, vport->port_state); 1146 mempool_free(pmb, phba->mbox_mem_pool); 1147 1148 lpfc_linkdown(phba); 1149 1150 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1151 "0200 CONFIG_LINK bad hba state x%x\n", 1152 vport->port_state); 1153 1154 lpfc_issue_clear_la(phba, vport); 1155 return; 1156 } 1157 1158 /** 1159 * lpfc_sli4_clear_fcf_rr_bmask 1160 * @phba pointer to the struct lpfc_hba for this port. 1161 * This fucnction resets the round robin bit mask and clears the 1162 * fcf priority list. The list deletions are done while holding the 1163 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1164 * from the lpfc_fcf_pri record. 1165 **/ 1166 void 1167 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1168 { 1169 struct lpfc_fcf_pri *fcf_pri; 1170 struct lpfc_fcf_pri *next_fcf_pri; 1171 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1172 spin_lock_irq(&phba->hbalock); 1173 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1174 &phba->fcf.fcf_pri_list, list) { 1175 list_del_init(&fcf_pri->list); 1176 fcf_pri->fcf_rec.flag = 0; 1177 } 1178 spin_unlock_irq(&phba->hbalock); 1179 } 1180 static void 1181 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1182 { 1183 struct lpfc_vport *vport = mboxq->vport; 1184 1185 if (mboxq->u.mb.mbxStatus) { 1186 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1187 "2017 REG_FCFI mbxStatus error x%x " 1188 "HBA state x%x\n", 1189 mboxq->u.mb.mbxStatus, vport->port_state); 1190 goto fail_out; 1191 } 1192 1193 /* Start FCoE discovery by sending a FLOGI. */ 1194 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1195 /* Set the FCFI registered flag */ 1196 spin_lock_irq(&phba->hbalock); 1197 phba->fcf.fcf_flag |= FCF_REGISTERED; 1198 spin_unlock_irq(&phba->hbalock); 1199 1200 /* If there is a pending FCoE event, restart FCF table scan. */ 1201 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1202 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1203 goto fail_out; 1204 1205 /* Mark successful completion of FCF table scan */ 1206 spin_lock_irq(&phba->hbalock); 1207 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1208 phba->hba_flag &= ~FCF_TS_INPROG; 1209 if (vport->port_state != LPFC_FLOGI) { 1210 phba->hba_flag |= FCF_RR_INPROG; 1211 spin_unlock_irq(&phba->hbalock); 1212 lpfc_issue_init_vfi(vport); 1213 goto out; 1214 } 1215 spin_unlock_irq(&phba->hbalock); 1216 goto out; 1217 1218 fail_out: 1219 spin_lock_irq(&phba->hbalock); 1220 phba->hba_flag &= ~FCF_RR_INPROG; 1221 spin_unlock_irq(&phba->hbalock); 1222 out: 1223 mempool_free(mboxq, phba->mbox_mem_pool); 1224 } 1225 1226 /** 1227 * lpfc_fab_name_match - Check if the fcf fabric name match. 1228 * @fab_name: pointer to fabric name. 1229 * @new_fcf_record: pointer to fcf record. 1230 * 1231 * This routine compare the fcf record's fabric name with provided 1232 * fabric name. If the fabric name are identical this function 1233 * returns 1 else return 0. 1234 **/ 1235 static uint32_t 1236 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1237 { 1238 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1239 return 0; 1240 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1241 return 0; 1242 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1243 return 0; 1244 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1245 return 0; 1246 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1247 return 0; 1248 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1249 return 0; 1250 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1251 return 0; 1252 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1253 return 0; 1254 return 1; 1255 } 1256 1257 /** 1258 * lpfc_sw_name_match - Check if the fcf switch name match. 1259 * @fab_name: pointer to fabric name. 1260 * @new_fcf_record: pointer to fcf record. 1261 * 1262 * This routine compare the fcf record's switch name with provided 1263 * switch name. If the switch name are identical this function 1264 * returns 1 else return 0. 1265 **/ 1266 static uint32_t 1267 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1268 { 1269 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1270 return 0; 1271 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1272 return 0; 1273 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1274 return 0; 1275 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1276 return 0; 1277 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1278 return 0; 1279 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1280 return 0; 1281 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1282 return 0; 1283 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1284 return 0; 1285 return 1; 1286 } 1287 1288 /** 1289 * lpfc_mac_addr_match - Check if the fcf mac address match. 1290 * @mac_addr: pointer to mac address. 1291 * @new_fcf_record: pointer to fcf record. 1292 * 1293 * This routine compare the fcf record's mac address with HBA's 1294 * FCF mac address. If the mac addresses are identical this function 1295 * returns 1 else return 0. 1296 **/ 1297 static uint32_t 1298 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1299 { 1300 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1301 return 0; 1302 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1303 return 0; 1304 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1305 return 0; 1306 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1307 return 0; 1308 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1309 return 0; 1310 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1311 return 0; 1312 return 1; 1313 } 1314 1315 static bool 1316 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1317 { 1318 return (curr_vlan_id == new_vlan_id); 1319 } 1320 1321 /** 1322 * lpfc_update_fcf_record - Update driver fcf record 1323 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1324 * @phba: pointer to lpfc hba data structure. 1325 * @fcf_index: Index for the lpfc_fcf_record. 1326 * @new_fcf_record: pointer to hba fcf record. 1327 * 1328 * This routine updates the driver FCF priority record from the new HBA FCF 1329 * record. This routine is called with the host lock held. 1330 **/ 1331 static void 1332 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1333 struct fcf_record *new_fcf_record 1334 ) 1335 { 1336 struct lpfc_fcf_pri *fcf_pri; 1337 1338 lockdep_assert_held(&phba->hbalock); 1339 1340 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1341 fcf_pri->fcf_rec.fcf_index = fcf_index; 1342 /* FCF record priority */ 1343 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1344 1345 } 1346 1347 /** 1348 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1349 * @fcf: pointer to driver fcf record. 1350 * @new_fcf_record: pointer to fcf record. 1351 * 1352 * This routine copies the FCF information from the FCF 1353 * record to lpfc_hba data structure. 1354 **/ 1355 static void 1356 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1357 struct fcf_record *new_fcf_record) 1358 { 1359 /* Fabric name */ 1360 fcf_rec->fabric_name[0] = 1361 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1362 fcf_rec->fabric_name[1] = 1363 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1364 fcf_rec->fabric_name[2] = 1365 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1366 fcf_rec->fabric_name[3] = 1367 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1368 fcf_rec->fabric_name[4] = 1369 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1370 fcf_rec->fabric_name[5] = 1371 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1372 fcf_rec->fabric_name[6] = 1373 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1374 fcf_rec->fabric_name[7] = 1375 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1376 /* Mac address */ 1377 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1378 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1379 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1380 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1381 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1382 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1383 /* FCF record index */ 1384 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1385 /* FCF record priority */ 1386 fcf_rec->priority = new_fcf_record->fip_priority; 1387 /* Switch name */ 1388 fcf_rec->switch_name[0] = 1389 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1390 fcf_rec->switch_name[1] = 1391 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1392 fcf_rec->switch_name[2] = 1393 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1394 fcf_rec->switch_name[3] = 1395 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1396 fcf_rec->switch_name[4] = 1397 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1398 fcf_rec->switch_name[5] = 1399 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1400 fcf_rec->switch_name[6] = 1401 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1402 fcf_rec->switch_name[7] = 1403 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1404 } 1405 1406 /** 1407 * lpfc_update_fcf_record - Update driver fcf record 1408 * @phba: pointer to lpfc hba data structure. 1409 * @fcf_rec: pointer to driver fcf record. 1410 * @new_fcf_record: pointer to hba fcf record. 1411 * @addr_mode: address mode to be set to the driver fcf record. 1412 * @vlan_id: vlan tag to be set to the driver fcf record. 1413 * @flag: flag bits to be set to the driver fcf record. 1414 * 1415 * This routine updates the driver FCF record from the new HBA FCF record 1416 * together with the address mode, vlan_id, and other informations. This 1417 * routine is called with the host lock held. 1418 **/ 1419 static void 1420 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1421 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1422 uint16_t vlan_id, uint32_t flag) 1423 { 1424 lockdep_assert_held(&phba->hbalock); 1425 1426 /* Copy the fields from the HBA's FCF record */ 1427 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1428 /* Update other fields of driver FCF record */ 1429 fcf_rec->addr_mode = addr_mode; 1430 fcf_rec->vlan_id = vlan_id; 1431 fcf_rec->flag |= (flag | RECORD_VALID); 1432 __lpfc_update_fcf_record_pri(phba, 1433 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1434 new_fcf_record); 1435 } 1436 1437 /** 1438 * lpfc_register_fcf - Register the FCF with hba. 1439 * @phba: pointer to lpfc hba data structure. 1440 * 1441 * This routine issues a register fcfi mailbox command to register 1442 * the fcf with HBA. 1443 **/ 1444 static void 1445 lpfc_register_fcf(struct lpfc_hba *phba) 1446 { 1447 LPFC_MBOXQ_t *fcf_mbxq; 1448 int rc; 1449 1450 spin_lock_irq(&phba->hbalock); 1451 /* If the FCF is not available do nothing. */ 1452 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1453 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1454 spin_unlock_irq(&phba->hbalock); 1455 return; 1456 } 1457 1458 /* The FCF is already registered, start discovery */ 1459 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1460 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1461 phba->hba_flag &= ~FCF_TS_INPROG; 1462 if (phba->pport->port_state != LPFC_FLOGI && 1463 phba->pport->fc_flag & FC_FABRIC) { 1464 phba->hba_flag |= FCF_RR_INPROG; 1465 spin_unlock_irq(&phba->hbalock); 1466 lpfc_initial_flogi(phba->pport); 1467 return; 1468 } 1469 spin_unlock_irq(&phba->hbalock); 1470 return; 1471 } 1472 spin_unlock_irq(&phba->hbalock); 1473 1474 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1475 if (!fcf_mbxq) { 1476 spin_lock_irq(&phba->hbalock); 1477 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1478 spin_unlock_irq(&phba->hbalock); 1479 return; 1480 } 1481 1482 lpfc_reg_fcfi(phba, fcf_mbxq); 1483 fcf_mbxq->vport = phba->pport; 1484 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1485 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1486 if (rc == MBX_NOT_FINISHED) { 1487 spin_lock_irq(&phba->hbalock); 1488 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1489 spin_unlock_irq(&phba->hbalock); 1490 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1491 } 1492 1493 return; 1494 } 1495 1496 /** 1497 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1498 * @phba: pointer to lpfc hba data structure. 1499 * @new_fcf_record: pointer to fcf record. 1500 * @boot_flag: Indicates if this record used by boot bios. 1501 * @addr_mode: The address mode to be used by this FCF 1502 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1503 * 1504 * This routine compare the fcf record with connect list obtained from the 1505 * config region to decide if this FCF can be used for SAN discovery. It returns 1506 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1507 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1508 * is used by boot bios and addr_mode will indicate the addressing mode to be 1509 * used for this FCF when the function returns. 1510 * If the FCF record need to be used with a particular vlan id, the vlan is 1511 * set in the vlan_id on return of the function. If not VLAN tagging need to 1512 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1513 **/ 1514 static int 1515 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1516 struct fcf_record *new_fcf_record, 1517 uint32_t *boot_flag, uint32_t *addr_mode, 1518 uint16_t *vlan_id) 1519 { 1520 struct lpfc_fcf_conn_entry *conn_entry; 1521 int i, j, fcf_vlan_id = 0; 1522 1523 /* Find the lowest VLAN id in the FCF record */ 1524 for (i = 0; i < 512; i++) { 1525 if (new_fcf_record->vlan_bitmap[i]) { 1526 fcf_vlan_id = i * 8; 1527 j = 0; 1528 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1529 j++; 1530 fcf_vlan_id++; 1531 } 1532 break; 1533 } 1534 } 1535 1536 /* FCF not valid/available or solicitation in progress */ 1537 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1538 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1539 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1540 return 0; 1541 1542 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1543 *boot_flag = 0; 1544 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1545 new_fcf_record); 1546 if (phba->valid_vlan) 1547 *vlan_id = phba->vlan_id; 1548 else 1549 *vlan_id = LPFC_FCOE_NULL_VID; 1550 return 1; 1551 } 1552 1553 /* 1554 * If there are no FCF connection table entry, driver connect to all 1555 * FCFs. 1556 */ 1557 if (list_empty(&phba->fcf_conn_rec_list)) { 1558 *boot_flag = 0; 1559 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1560 new_fcf_record); 1561 1562 /* 1563 * When there are no FCF connect entries, use driver's default 1564 * addressing mode - FPMA. 1565 */ 1566 if (*addr_mode & LPFC_FCF_FPMA) 1567 *addr_mode = LPFC_FCF_FPMA; 1568 1569 /* If FCF record report a vlan id use that vlan id */ 1570 if (fcf_vlan_id) 1571 *vlan_id = fcf_vlan_id; 1572 else 1573 *vlan_id = LPFC_FCOE_NULL_VID; 1574 return 1; 1575 } 1576 1577 list_for_each_entry(conn_entry, 1578 &phba->fcf_conn_rec_list, list) { 1579 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1580 continue; 1581 1582 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1583 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1584 new_fcf_record)) 1585 continue; 1586 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1587 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1588 new_fcf_record)) 1589 continue; 1590 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1591 /* 1592 * If the vlan bit map does not have the bit set for the 1593 * vlan id to be used, then it is not a match. 1594 */ 1595 if (!(new_fcf_record->vlan_bitmap 1596 [conn_entry->conn_rec.vlan_tag / 8] & 1597 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1598 continue; 1599 } 1600 1601 /* 1602 * If connection record does not support any addressing mode, 1603 * skip the FCF record. 1604 */ 1605 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1606 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1607 continue; 1608 1609 /* 1610 * Check if the connection record specifies a required 1611 * addressing mode. 1612 */ 1613 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1614 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1615 1616 /* 1617 * If SPMA required but FCF not support this continue. 1618 */ 1619 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1620 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1621 new_fcf_record) & LPFC_FCF_SPMA)) 1622 continue; 1623 1624 /* 1625 * If FPMA required but FCF not support this continue. 1626 */ 1627 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1628 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1629 new_fcf_record) & LPFC_FCF_FPMA)) 1630 continue; 1631 } 1632 1633 /* 1634 * This fcf record matches filtering criteria. 1635 */ 1636 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1637 *boot_flag = 1; 1638 else 1639 *boot_flag = 0; 1640 1641 /* 1642 * If user did not specify any addressing mode, or if the 1643 * preferred addressing mode specified by user is not supported 1644 * by FCF, allow fabric to pick the addressing mode. 1645 */ 1646 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1647 new_fcf_record); 1648 /* 1649 * If the user specified a required address mode, assign that 1650 * address mode 1651 */ 1652 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1653 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1654 *addr_mode = (conn_entry->conn_rec.flags & 1655 FCFCNCT_AM_SPMA) ? 1656 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1657 /* 1658 * If the user specified a preferred address mode, use the 1659 * addr mode only if FCF support the addr_mode. 1660 */ 1661 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1662 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1663 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1664 (*addr_mode & LPFC_FCF_SPMA)) 1665 *addr_mode = LPFC_FCF_SPMA; 1666 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1667 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1668 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1669 (*addr_mode & LPFC_FCF_FPMA)) 1670 *addr_mode = LPFC_FCF_FPMA; 1671 1672 /* If matching connect list has a vlan id, use it */ 1673 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1674 *vlan_id = conn_entry->conn_rec.vlan_tag; 1675 /* 1676 * If no vlan id is specified in connect list, use the vlan id 1677 * in the FCF record 1678 */ 1679 else if (fcf_vlan_id) 1680 *vlan_id = fcf_vlan_id; 1681 else 1682 *vlan_id = LPFC_FCOE_NULL_VID; 1683 1684 return 1; 1685 } 1686 1687 return 0; 1688 } 1689 1690 /** 1691 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1692 * @phba: pointer to lpfc hba data structure. 1693 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1694 * 1695 * This function check if there is any fcoe event pending while driver 1696 * scan FCF entries. If there is any pending event, it will restart the 1697 * FCF saning and return 1 else return 0. 1698 */ 1699 int 1700 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1701 { 1702 /* 1703 * If the Link is up and no FCoE events while in the 1704 * FCF discovery, no need to restart FCF discovery. 1705 */ 1706 if ((phba->link_state >= LPFC_LINK_UP) && 1707 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1708 return 0; 1709 1710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1711 "2768 Pending link or FCF event during current " 1712 "handling of the previous event: link_state:x%x, " 1713 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1714 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1715 phba->fcoe_eventtag); 1716 1717 spin_lock_irq(&phba->hbalock); 1718 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1719 spin_unlock_irq(&phba->hbalock); 1720 1721 if (phba->link_state >= LPFC_LINK_UP) { 1722 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1723 "2780 Restart FCF table scan due to " 1724 "pending FCF event:evt_tag_at_scan:x%x, " 1725 "evt_tag_current:x%x\n", 1726 phba->fcoe_eventtag_at_fcf_scan, 1727 phba->fcoe_eventtag); 1728 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1729 } else { 1730 /* 1731 * Do not continue FCF discovery and clear FCF_TS_INPROG 1732 * flag 1733 */ 1734 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1735 "2833 Stop FCF discovery process due to link " 1736 "state change (x%x)\n", phba->link_state); 1737 spin_lock_irq(&phba->hbalock); 1738 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1739 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1740 spin_unlock_irq(&phba->hbalock); 1741 } 1742 1743 /* Unregister the currently registered FCF if required */ 1744 if (unreg_fcf) { 1745 spin_lock_irq(&phba->hbalock); 1746 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1747 spin_unlock_irq(&phba->hbalock); 1748 lpfc_sli4_unregister_fcf(phba); 1749 } 1750 return 1; 1751 } 1752 1753 /** 1754 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1755 * @phba: pointer to lpfc hba data structure. 1756 * @fcf_cnt: number of eligible fcf record seen so far. 1757 * 1758 * This function makes an running random selection decision on FCF record to 1759 * use through a sequence of @fcf_cnt eligible FCF records with equal 1760 * probability. To perform integer manunipulation of random numbers with 1761 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1762 * from prandom_u32() are taken as the random random number generated. 1763 * 1764 * Returns true when outcome is for the newly read FCF record should be 1765 * chosen; otherwise, return false when outcome is for keeping the previously 1766 * chosen FCF record. 1767 **/ 1768 static bool 1769 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1770 { 1771 uint32_t rand_num; 1772 1773 /* Get 16-bit uniform random number */ 1774 rand_num = 0xFFFF & prandom_u32(); 1775 1776 /* Decision with probability 1/fcf_cnt */ 1777 if ((fcf_cnt * rand_num) < 0xFFFF) 1778 return true; 1779 else 1780 return false; 1781 } 1782 1783 /** 1784 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1785 * @phba: pointer to lpfc hba data structure. 1786 * @mboxq: pointer to mailbox object. 1787 * @next_fcf_index: pointer to holder of next fcf index. 1788 * 1789 * This routine parses the non-embedded fcf mailbox command by performing the 1790 * necessarily error checking, non-embedded read FCF record mailbox command 1791 * SGE parsing, and endianness swapping. 1792 * 1793 * Returns the pointer to the new FCF record in the non-embedded mailbox 1794 * command DMA memory if successfully, other NULL. 1795 */ 1796 static struct fcf_record * 1797 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1798 uint16_t *next_fcf_index) 1799 { 1800 void *virt_addr; 1801 struct lpfc_mbx_sge sge; 1802 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1803 uint32_t shdr_status, shdr_add_status, if_type; 1804 union lpfc_sli4_cfg_shdr *shdr; 1805 struct fcf_record *new_fcf_record; 1806 1807 /* Get the first SGE entry from the non-embedded DMA memory. This 1808 * routine only uses a single SGE. 1809 */ 1810 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1811 if (unlikely(!mboxq->sge_array)) { 1812 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1813 "2524 Failed to get the non-embedded SGE " 1814 "virtual address\n"); 1815 return NULL; 1816 } 1817 virt_addr = mboxq->sge_array->addr[0]; 1818 1819 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1820 lpfc_sli_pcimem_bcopy(shdr, shdr, 1821 sizeof(union lpfc_sli4_cfg_shdr)); 1822 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1823 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1824 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1825 if (shdr_status || shdr_add_status) { 1826 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1827 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1828 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1829 "2726 READ_FCF_RECORD Indicates empty " 1830 "FCF table.\n"); 1831 else 1832 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1833 "2521 READ_FCF_RECORD mailbox failed " 1834 "with status x%x add_status x%x, " 1835 "mbx\n", shdr_status, shdr_add_status); 1836 return NULL; 1837 } 1838 1839 /* Interpreting the returned information of the FCF record */ 1840 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1841 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1842 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1843 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1844 new_fcf_record = (struct fcf_record *)(virt_addr + 1845 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1846 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1847 offsetof(struct fcf_record, vlan_bitmap)); 1848 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1849 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1850 1851 return new_fcf_record; 1852 } 1853 1854 /** 1855 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1856 * @phba: pointer to lpfc hba data structure. 1857 * @fcf_record: pointer to the fcf record. 1858 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1859 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1860 * 1861 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1862 * enabled. 1863 **/ 1864 static void 1865 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1866 struct fcf_record *fcf_record, 1867 uint16_t vlan_id, 1868 uint16_t next_fcf_index) 1869 { 1870 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1871 "2764 READ_FCF_RECORD:\n" 1872 "\tFCF_Index : x%x\n" 1873 "\tFCF_Avail : x%x\n" 1874 "\tFCF_Valid : x%x\n" 1875 "\tFCF_SOL : x%x\n" 1876 "\tFIP_Priority : x%x\n" 1877 "\tMAC_Provider : x%x\n" 1878 "\tLowest VLANID : x%x\n" 1879 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1880 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1881 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1882 "\tNext_FCF_Index: x%x\n", 1883 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1884 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1885 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1886 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1887 fcf_record->fip_priority, 1888 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1889 vlan_id, 1890 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1891 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1892 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1893 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1894 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1895 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1896 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1897 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1898 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1899 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1900 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1901 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1902 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1903 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1904 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1905 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1906 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1907 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1908 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1909 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1910 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1911 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1912 next_fcf_index); 1913 } 1914 1915 /** 1916 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1917 * @phba: pointer to lpfc hba data structure. 1918 * @fcf_rec: pointer to an existing FCF record. 1919 * @new_fcf_record: pointer to a new FCF record. 1920 * @new_vlan_id: vlan id from the new FCF record. 1921 * 1922 * This function performs matching test of a new FCF record against an existing 1923 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1924 * will not be used as part of the FCF record matching criteria. 1925 * 1926 * Returns true if all the fields matching, otherwise returns false. 1927 */ 1928 static bool 1929 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1930 struct lpfc_fcf_rec *fcf_rec, 1931 struct fcf_record *new_fcf_record, 1932 uint16_t new_vlan_id) 1933 { 1934 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1935 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1936 return false; 1937 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1938 return false; 1939 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1940 return false; 1941 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1942 return false; 1943 if (fcf_rec->priority != new_fcf_record->fip_priority) 1944 return false; 1945 return true; 1946 } 1947 1948 /** 1949 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1950 * @vport: Pointer to vport object. 1951 * @fcf_index: index to next fcf. 1952 * 1953 * This function processing the roundrobin fcf failover to next fcf index. 1954 * When this function is invoked, there will be a current fcf registered 1955 * for flogi. 1956 * Return: 0 for continue retrying flogi on currently registered fcf; 1957 * 1 for stop flogi on currently registered fcf; 1958 */ 1959 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1960 { 1961 struct lpfc_hba *phba = vport->phba; 1962 int rc; 1963 1964 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1965 spin_lock_irq(&phba->hbalock); 1966 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1967 spin_unlock_irq(&phba->hbalock); 1968 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1969 "2872 Devloss tmo with no eligible " 1970 "FCF, unregister in-use FCF (x%x) " 1971 "and rescan FCF table\n", 1972 phba->fcf.current_rec.fcf_indx); 1973 lpfc_unregister_fcf_rescan(phba); 1974 goto stop_flogi_current_fcf; 1975 } 1976 /* Mark the end to FLOGI roundrobin failover */ 1977 phba->hba_flag &= ~FCF_RR_INPROG; 1978 /* Allow action to new fcf asynchronous event */ 1979 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1980 spin_unlock_irq(&phba->hbalock); 1981 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1982 "2865 No FCF available, stop roundrobin FCF " 1983 "failover and change port state:x%x/x%x\n", 1984 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1985 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1986 goto stop_flogi_current_fcf; 1987 } else { 1988 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1989 "2794 Try FLOGI roundrobin FCF failover to " 1990 "(x%x)\n", fcf_index); 1991 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1992 if (rc) 1993 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1994 "2761 FLOGI roundrobin FCF failover " 1995 "failed (rc:x%x) to read FCF (x%x)\n", 1996 rc, phba->fcf.current_rec.fcf_indx); 1997 else 1998 goto stop_flogi_current_fcf; 1999 } 2000 return 0; 2001 2002 stop_flogi_current_fcf: 2003 lpfc_can_disctmo(vport); 2004 return 1; 2005 } 2006 2007 /** 2008 * lpfc_sli4_fcf_pri_list_del 2009 * @phba: pointer to lpfc hba data structure. 2010 * @fcf_index the index of the fcf record to delete 2011 * This routine checks the on list flag of the fcf_index to be deleted. 2012 * If it is one the list then it is removed from the list, and the flag 2013 * is cleared. This routine grab the hbalock before removing the fcf 2014 * record from the list. 2015 **/ 2016 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2017 uint16_t fcf_index) 2018 { 2019 struct lpfc_fcf_pri *new_fcf_pri; 2020 2021 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2022 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2023 "3058 deleting idx x%x pri x%x flg x%x\n", 2024 fcf_index, new_fcf_pri->fcf_rec.priority, 2025 new_fcf_pri->fcf_rec.flag); 2026 spin_lock_irq(&phba->hbalock); 2027 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2028 if (phba->fcf.current_rec.priority == 2029 new_fcf_pri->fcf_rec.priority) 2030 phba->fcf.eligible_fcf_cnt--; 2031 list_del_init(&new_fcf_pri->list); 2032 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2033 } 2034 spin_unlock_irq(&phba->hbalock); 2035 } 2036 2037 /** 2038 * lpfc_sli4_set_fcf_flogi_fail 2039 * @phba: pointer to lpfc hba data structure. 2040 * @fcf_index the index of the fcf record to update 2041 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2042 * flag so the the round robin slection for the particular priority level 2043 * will try a different fcf record that does not have this bit set. 2044 * If the fcf record is re-read for any reason this flag is cleared brfore 2045 * adding it to the priority list. 2046 **/ 2047 void 2048 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2049 { 2050 struct lpfc_fcf_pri *new_fcf_pri; 2051 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2052 spin_lock_irq(&phba->hbalock); 2053 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2054 spin_unlock_irq(&phba->hbalock); 2055 } 2056 2057 /** 2058 * lpfc_sli4_fcf_pri_list_add 2059 * @phba: pointer to lpfc hba data structure. 2060 * @fcf_index the index of the fcf record to add 2061 * This routine checks the priority of the fcf_index to be added. 2062 * If it is a lower priority than the current head of the fcf_pri list 2063 * then it is added to the list in the right order. 2064 * If it is the same priority as the current head of the list then it 2065 * is added to the head of the list and its bit in the rr_bmask is set. 2066 * If the fcf_index to be added is of a higher priority than the current 2067 * head of the list then the rr_bmask is cleared, its bit is set in the 2068 * rr_bmask and it is added to the head of the list. 2069 * returns: 2070 * 0=success 1=failure 2071 **/ 2072 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2073 uint16_t fcf_index, 2074 struct fcf_record *new_fcf_record) 2075 { 2076 uint16_t current_fcf_pri; 2077 uint16_t last_index; 2078 struct lpfc_fcf_pri *fcf_pri; 2079 struct lpfc_fcf_pri *next_fcf_pri; 2080 struct lpfc_fcf_pri *new_fcf_pri; 2081 int ret; 2082 2083 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2084 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2085 "3059 adding idx x%x pri x%x flg x%x\n", 2086 fcf_index, new_fcf_record->fip_priority, 2087 new_fcf_pri->fcf_rec.flag); 2088 spin_lock_irq(&phba->hbalock); 2089 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2090 list_del_init(&new_fcf_pri->list); 2091 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2092 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2093 if (list_empty(&phba->fcf.fcf_pri_list)) { 2094 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2095 ret = lpfc_sli4_fcf_rr_index_set(phba, 2096 new_fcf_pri->fcf_rec.fcf_index); 2097 goto out; 2098 } 2099 2100 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2101 LPFC_SLI4_FCF_TBL_INDX_MAX); 2102 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2103 ret = 0; /* Empty rr list */ 2104 goto out; 2105 } 2106 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2107 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2108 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2109 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2110 memset(phba->fcf.fcf_rr_bmask, 0, 2111 sizeof(*phba->fcf.fcf_rr_bmask)); 2112 /* fcfs_at_this_priority_level = 1; */ 2113 phba->fcf.eligible_fcf_cnt = 1; 2114 } else 2115 /* fcfs_at_this_priority_level++; */ 2116 phba->fcf.eligible_fcf_cnt++; 2117 ret = lpfc_sli4_fcf_rr_index_set(phba, 2118 new_fcf_pri->fcf_rec.fcf_index); 2119 goto out; 2120 } 2121 2122 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2123 &phba->fcf.fcf_pri_list, list) { 2124 if (new_fcf_pri->fcf_rec.priority <= 2125 fcf_pri->fcf_rec.priority) { 2126 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2127 list_add(&new_fcf_pri->list, 2128 &phba->fcf.fcf_pri_list); 2129 else 2130 list_add(&new_fcf_pri->list, 2131 &((struct lpfc_fcf_pri *) 2132 fcf_pri->list.prev)->list); 2133 ret = 0; 2134 goto out; 2135 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2136 || new_fcf_pri->fcf_rec.priority < 2137 next_fcf_pri->fcf_rec.priority) { 2138 list_add(&new_fcf_pri->list, &fcf_pri->list); 2139 ret = 0; 2140 goto out; 2141 } 2142 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2143 continue; 2144 2145 } 2146 ret = 1; 2147 out: 2148 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2149 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2150 spin_unlock_irq(&phba->hbalock); 2151 return ret; 2152 } 2153 2154 /** 2155 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2156 * @phba: pointer to lpfc hba data structure. 2157 * @mboxq: pointer to mailbox object. 2158 * 2159 * This function iterates through all the fcf records available in 2160 * HBA and chooses the optimal FCF record for discovery. After finding 2161 * the FCF for discovery it registers the FCF record and kicks start 2162 * discovery. 2163 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2164 * use an FCF record which matches fabric name and mac address of the 2165 * currently used FCF record. 2166 * If the driver supports only one FCF, it will try to use the FCF record 2167 * used by BOOT_BIOS. 2168 */ 2169 void 2170 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2171 { 2172 struct fcf_record *new_fcf_record; 2173 uint32_t boot_flag, addr_mode; 2174 uint16_t fcf_index, next_fcf_index; 2175 struct lpfc_fcf_rec *fcf_rec = NULL; 2176 uint16_t vlan_id; 2177 bool select_new_fcf; 2178 int rc; 2179 2180 /* If there is pending FCoE event restart FCF table scan */ 2181 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2182 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2183 return; 2184 } 2185 2186 /* Parse the FCF record from the non-embedded mailbox command */ 2187 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2188 &next_fcf_index); 2189 if (!new_fcf_record) { 2190 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2191 "2765 Mailbox command READ_FCF_RECORD " 2192 "failed to retrieve a FCF record.\n"); 2193 /* Let next new FCF event trigger fast failover */ 2194 spin_lock_irq(&phba->hbalock); 2195 phba->hba_flag &= ~FCF_TS_INPROG; 2196 spin_unlock_irq(&phba->hbalock); 2197 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2198 return; 2199 } 2200 2201 /* Check the FCF record against the connection list */ 2202 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2203 &addr_mode, &vlan_id); 2204 2205 /* Log the FCF record information if turned on */ 2206 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2207 next_fcf_index); 2208 2209 /* 2210 * If the fcf record does not match with connect list entries 2211 * read the next entry; otherwise, this is an eligible FCF 2212 * record for roundrobin FCF failover. 2213 */ 2214 if (!rc) { 2215 lpfc_sli4_fcf_pri_list_del(phba, 2216 bf_get(lpfc_fcf_record_fcf_index, 2217 new_fcf_record)); 2218 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2219 "2781 FCF (x%x) failed connection " 2220 "list check: (x%x/x%x/%x)\n", 2221 bf_get(lpfc_fcf_record_fcf_index, 2222 new_fcf_record), 2223 bf_get(lpfc_fcf_record_fcf_avail, 2224 new_fcf_record), 2225 bf_get(lpfc_fcf_record_fcf_valid, 2226 new_fcf_record), 2227 bf_get(lpfc_fcf_record_fcf_sol, 2228 new_fcf_record)); 2229 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2230 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2231 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2232 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2233 phba->fcf.current_rec.fcf_indx) { 2234 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2235 "2862 FCF (x%x) matches property " 2236 "of in-use FCF (x%x)\n", 2237 bf_get(lpfc_fcf_record_fcf_index, 2238 new_fcf_record), 2239 phba->fcf.current_rec.fcf_indx); 2240 goto read_next_fcf; 2241 } 2242 /* 2243 * In case the current in-use FCF record becomes 2244 * invalid/unavailable during FCF discovery that 2245 * was not triggered by fast FCF failover process, 2246 * treat it as fast FCF failover. 2247 */ 2248 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2249 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2250 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2251 "2835 Invalid in-use FCF " 2252 "(x%x), enter FCF failover " 2253 "table scan.\n", 2254 phba->fcf.current_rec.fcf_indx); 2255 spin_lock_irq(&phba->hbalock); 2256 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2257 spin_unlock_irq(&phba->hbalock); 2258 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2259 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2260 LPFC_FCOE_FCF_GET_FIRST); 2261 return; 2262 } 2263 } 2264 goto read_next_fcf; 2265 } else { 2266 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2267 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2268 new_fcf_record); 2269 if (rc) 2270 goto read_next_fcf; 2271 } 2272 2273 /* 2274 * If this is not the first FCF discovery of the HBA, use last 2275 * FCF record for the discovery. The condition that a rescan 2276 * matches the in-use FCF record: fabric name, switch name, mac 2277 * address, and vlan_id. 2278 */ 2279 spin_lock_irq(&phba->hbalock); 2280 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2281 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2282 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2283 new_fcf_record, vlan_id)) { 2284 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2285 phba->fcf.current_rec.fcf_indx) { 2286 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2287 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2288 /* Stop FCF redisc wait timer */ 2289 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2290 phba); 2291 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2292 /* Fast failover, mark completed */ 2293 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2294 spin_unlock_irq(&phba->hbalock); 2295 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2296 "2836 New FCF matches in-use " 2297 "FCF (x%x), port_state:x%x, " 2298 "fc_flag:x%x\n", 2299 phba->fcf.current_rec.fcf_indx, 2300 phba->pport->port_state, 2301 phba->pport->fc_flag); 2302 goto out; 2303 } else 2304 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2305 "2863 New FCF (x%x) matches " 2306 "property of in-use FCF (x%x)\n", 2307 bf_get(lpfc_fcf_record_fcf_index, 2308 new_fcf_record), 2309 phba->fcf.current_rec.fcf_indx); 2310 } 2311 /* 2312 * Read next FCF record from HBA searching for the matching 2313 * with in-use record only if not during the fast failover 2314 * period. In case of fast failover period, it shall try to 2315 * determine whether the FCF record just read should be the 2316 * next candidate. 2317 */ 2318 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2319 spin_unlock_irq(&phba->hbalock); 2320 goto read_next_fcf; 2321 } 2322 } 2323 /* 2324 * Update on failover FCF record only if it's in FCF fast-failover 2325 * period; otherwise, update on current FCF record. 2326 */ 2327 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2328 fcf_rec = &phba->fcf.failover_rec; 2329 else 2330 fcf_rec = &phba->fcf.current_rec; 2331 2332 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2333 /* 2334 * If the driver FCF record does not have boot flag 2335 * set and new hba fcf record has boot flag set, use 2336 * the new hba fcf record. 2337 */ 2338 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2339 /* Choose this FCF record */ 2340 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2341 "2837 Update current FCF record " 2342 "(x%x) with new FCF record (x%x)\n", 2343 fcf_rec->fcf_indx, 2344 bf_get(lpfc_fcf_record_fcf_index, 2345 new_fcf_record)); 2346 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2347 addr_mode, vlan_id, BOOT_ENABLE); 2348 spin_unlock_irq(&phba->hbalock); 2349 goto read_next_fcf; 2350 } 2351 /* 2352 * If the driver FCF record has boot flag set and the 2353 * new hba FCF record does not have boot flag, read 2354 * the next FCF record. 2355 */ 2356 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2357 spin_unlock_irq(&phba->hbalock); 2358 goto read_next_fcf; 2359 } 2360 /* 2361 * If the new hba FCF record has lower priority value 2362 * than the driver FCF record, use the new record. 2363 */ 2364 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2365 /* Choose the new FCF record with lower priority */ 2366 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2367 "2838 Update current FCF record " 2368 "(x%x) with new FCF record (x%x)\n", 2369 fcf_rec->fcf_indx, 2370 bf_get(lpfc_fcf_record_fcf_index, 2371 new_fcf_record)); 2372 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2373 addr_mode, vlan_id, 0); 2374 /* Reset running random FCF selection count */ 2375 phba->fcf.eligible_fcf_cnt = 1; 2376 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2377 /* Update running random FCF selection count */ 2378 phba->fcf.eligible_fcf_cnt++; 2379 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2380 phba->fcf.eligible_fcf_cnt); 2381 if (select_new_fcf) { 2382 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2383 "2839 Update current FCF record " 2384 "(x%x) with new FCF record (x%x)\n", 2385 fcf_rec->fcf_indx, 2386 bf_get(lpfc_fcf_record_fcf_index, 2387 new_fcf_record)); 2388 /* Choose the new FCF by random selection */ 2389 __lpfc_update_fcf_record(phba, fcf_rec, 2390 new_fcf_record, 2391 addr_mode, vlan_id, 0); 2392 } 2393 } 2394 spin_unlock_irq(&phba->hbalock); 2395 goto read_next_fcf; 2396 } 2397 /* 2398 * This is the first suitable FCF record, choose this record for 2399 * initial best-fit FCF. 2400 */ 2401 if (fcf_rec) { 2402 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2403 "2840 Update initial FCF candidate " 2404 "with FCF (x%x)\n", 2405 bf_get(lpfc_fcf_record_fcf_index, 2406 new_fcf_record)); 2407 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2408 addr_mode, vlan_id, (boot_flag ? 2409 BOOT_ENABLE : 0)); 2410 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2411 /* Setup initial running random FCF selection count */ 2412 phba->fcf.eligible_fcf_cnt = 1; 2413 } 2414 spin_unlock_irq(&phba->hbalock); 2415 goto read_next_fcf; 2416 2417 read_next_fcf: 2418 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2419 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2420 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2421 /* 2422 * Case of FCF fast failover scan 2423 */ 2424 2425 /* 2426 * It has not found any suitable FCF record, cancel 2427 * FCF scan inprogress, and do nothing 2428 */ 2429 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2430 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2431 "2782 No suitable FCF found: " 2432 "(x%x/x%x)\n", 2433 phba->fcoe_eventtag_at_fcf_scan, 2434 bf_get(lpfc_fcf_record_fcf_index, 2435 new_fcf_record)); 2436 spin_lock_irq(&phba->hbalock); 2437 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2438 phba->hba_flag &= ~FCF_TS_INPROG; 2439 spin_unlock_irq(&phba->hbalock); 2440 /* Unregister in-use FCF and rescan */ 2441 lpfc_printf_log(phba, KERN_INFO, 2442 LOG_FIP, 2443 "2864 On devloss tmo " 2444 "unreg in-use FCF and " 2445 "rescan FCF table\n"); 2446 lpfc_unregister_fcf_rescan(phba); 2447 return; 2448 } 2449 /* 2450 * Let next new FCF event trigger fast failover 2451 */ 2452 phba->hba_flag &= ~FCF_TS_INPROG; 2453 spin_unlock_irq(&phba->hbalock); 2454 return; 2455 } 2456 /* 2457 * It has found a suitable FCF record that is not 2458 * the same as in-use FCF record, unregister the 2459 * in-use FCF record, replace the in-use FCF record 2460 * with the new FCF record, mark FCF fast failover 2461 * completed, and then start register the new FCF 2462 * record. 2463 */ 2464 2465 /* Unregister the current in-use FCF record */ 2466 lpfc_unregister_fcf(phba); 2467 2468 /* Replace in-use record with the new record */ 2469 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2470 "2842 Replace in-use FCF (x%x) " 2471 "with failover FCF (x%x)\n", 2472 phba->fcf.current_rec.fcf_indx, 2473 phba->fcf.failover_rec.fcf_indx); 2474 memcpy(&phba->fcf.current_rec, 2475 &phba->fcf.failover_rec, 2476 sizeof(struct lpfc_fcf_rec)); 2477 /* 2478 * Mark the fast FCF failover rediscovery completed 2479 * and the start of the first round of the roundrobin 2480 * FCF failover. 2481 */ 2482 spin_lock_irq(&phba->hbalock); 2483 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2484 spin_unlock_irq(&phba->hbalock); 2485 /* Register to the new FCF record */ 2486 lpfc_register_fcf(phba); 2487 } else { 2488 /* 2489 * In case of transaction period to fast FCF failover, 2490 * do nothing when search to the end of the FCF table. 2491 */ 2492 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2493 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2494 return; 2495 2496 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2497 phba->fcf.fcf_flag & FCF_IN_USE) { 2498 /* 2499 * In case the current in-use FCF record no 2500 * longer existed during FCF discovery that 2501 * was not triggered by fast FCF failover 2502 * process, treat it as fast FCF failover. 2503 */ 2504 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2505 "2841 In-use FCF record (x%x) " 2506 "not reported, entering fast " 2507 "FCF failover mode scanning.\n", 2508 phba->fcf.current_rec.fcf_indx); 2509 spin_lock_irq(&phba->hbalock); 2510 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2511 spin_unlock_irq(&phba->hbalock); 2512 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2513 LPFC_FCOE_FCF_GET_FIRST); 2514 return; 2515 } 2516 /* Register to the new FCF record */ 2517 lpfc_register_fcf(phba); 2518 } 2519 } else 2520 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2521 return; 2522 2523 out: 2524 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2525 lpfc_register_fcf(phba); 2526 2527 return; 2528 } 2529 2530 /** 2531 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2532 * @phba: pointer to lpfc hba data structure. 2533 * @mboxq: pointer to mailbox object. 2534 * 2535 * This is the callback function for FLOGI failure roundrobin FCF failover 2536 * read FCF record mailbox command from the eligible FCF record bmask for 2537 * performing the failover. If the FCF read back is not valid/available, it 2538 * fails through to retrying FLOGI to the currently registered FCF again. 2539 * Otherwise, if the FCF read back is valid and available, it will set the 2540 * newly read FCF record to the failover FCF record, unregister currently 2541 * registered FCF record, copy the failover FCF record to the current 2542 * FCF record, and then register the current FCF record before proceeding 2543 * to trying FLOGI on the new failover FCF. 2544 */ 2545 void 2546 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2547 { 2548 struct fcf_record *new_fcf_record; 2549 uint32_t boot_flag, addr_mode; 2550 uint16_t next_fcf_index, fcf_index; 2551 uint16_t current_fcf_index; 2552 uint16_t vlan_id; 2553 int rc; 2554 2555 /* If link state is not up, stop the roundrobin failover process */ 2556 if (phba->link_state < LPFC_LINK_UP) { 2557 spin_lock_irq(&phba->hbalock); 2558 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2559 phba->hba_flag &= ~FCF_RR_INPROG; 2560 spin_unlock_irq(&phba->hbalock); 2561 goto out; 2562 } 2563 2564 /* Parse the FCF record from the non-embedded mailbox command */ 2565 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2566 &next_fcf_index); 2567 if (!new_fcf_record) { 2568 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2569 "2766 Mailbox command READ_FCF_RECORD " 2570 "failed to retrieve a FCF record. " 2571 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2572 phba->fcf.fcf_flag); 2573 lpfc_unregister_fcf_rescan(phba); 2574 goto out; 2575 } 2576 2577 /* Get the needed parameters from FCF record */ 2578 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2579 &addr_mode, &vlan_id); 2580 2581 /* Log the FCF record information if turned on */ 2582 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2583 next_fcf_index); 2584 2585 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2586 if (!rc) { 2587 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2588 "2848 Remove ineligible FCF (x%x) from " 2589 "from roundrobin bmask\n", fcf_index); 2590 /* Clear roundrobin bmask bit for ineligible FCF */ 2591 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2592 /* Perform next round of roundrobin FCF failover */ 2593 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2594 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2595 if (rc) 2596 goto out; 2597 goto error_out; 2598 } 2599 2600 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2601 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2602 "2760 Perform FLOGI roundrobin FCF failover: " 2603 "FCF (x%x) back to FCF (x%x)\n", 2604 phba->fcf.current_rec.fcf_indx, fcf_index); 2605 /* Wait 500 ms before retrying FLOGI to current FCF */ 2606 msleep(500); 2607 lpfc_issue_init_vfi(phba->pport); 2608 goto out; 2609 } 2610 2611 /* Upload new FCF record to the failover FCF record */ 2612 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2613 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2614 phba->fcf.failover_rec.fcf_indx, fcf_index); 2615 spin_lock_irq(&phba->hbalock); 2616 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2617 new_fcf_record, addr_mode, vlan_id, 2618 (boot_flag ? BOOT_ENABLE : 0)); 2619 spin_unlock_irq(&phba->hbalock); 2620 2621 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2622 2623 /* Unregister the current in-use FCF record */ 2624 lpfc_unregister_fcf(phba); 2625 2626 /* Replace in-use record with the new record */ 2627 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2628 sizeof(struct lpfc_fcf_rec)); 2629 2630 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2631 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2632 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2633 2634 error_out: 2635 lpfc_register_fcf(phba); 2636 out: 2637 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2638 } 2639 2640 /** 2641 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2642 * @phba: pointer to lpfc hba data structure. 2643 * @mboxq: pointer to mailbox object. 2644 * 2645 * This is the callback function of read FCF record mailbox command for 2646 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2647 * failover when a new FCF event happened. If the FCF read back is 2648 * valid/available and it passes the connection list check, it updates 2649 * the bmask for the eligible FCF record for roundrobin failover. 2650 */ 2651 void 2652 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2653 { 2654 struct fcf_record *new_fcf_record; 2655 uint32_t boot_flag, addr_mode; 2656 uint16_t fcf_index, next_fcf_index; 2657 uint16_t vlan_id; 2658 int rc; 2659 2660 /* If link state is not up, no need to proceed */ 2661 if (phba->link_state < LPFC_LINK_UP) 2662 goto out; 2663 2664 /* If FCF discovery period is over, no need to proceed */ 2665 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2666 goto out; 2667 2668 /* Parse the FCF record from the non-embedded mailbox command */ 2669 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2670 &next_fcf_index); 2671 if (!new_fcf_record) { 2672 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2673 "2767 Mailbox command READ_FCF_RECORD " 2674 "failed to retrieve a FCF record.\n"); 2675 goto out; 2676 } 2677 2678 /* Check the connection list for eligibility */ 2679 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2680 &addr_mode, &vlan_id); 2681 2682 /* Log the FCF record information if turned on */ 2683 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2684 next_fcf_index); 2685 2686 if (!rc) 2687 goto out; 2688 2689 /* Update the eligible FCF record index bmask */ 2690 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2691 2692 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2693 2694 out: 2695 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2696 } 2697 2698 /** 2699 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2700 * @phba: pointer to lpfc hba data structure. 2701 * @mboxq: pointer to mailbox data structure. 2702 * 2703 * This function handles completion of init vfi mailbox command. 2704 */ 2705 static void 2706 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2707 { 2708 struct lpfc_vport *vport = mboxq->vport; 2709 2710 /* 2711 * VFI not supported on interface type 0, just do the flogi 2712 * Also continue if the VFI is in use - just use the same one. 2713 */ 2714 if (mboxq->u.mb.mbxStatus && 2715 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2716 LPFC_SLI_INTF_IF_TYPE_0) && 2717 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2718 lpfc_printf_vlog(vport, KERN_ERR, 2719 LOG_MBOX, 2720 "2891 Init VFI mailbox failed 0x%x\n", 2721 mboxq->u.mb.mbxStatus); 2722 mempool_free(mboxq, phba->mbox_mem_pool); 2723 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2724 return; 2725 } 2726 2727 lpfc_initial_flogi(vport); 2728 mempool_free(mboxq, phba->mbox_mem_pool); 2729 return; 2730 } 2731 2732 /** 2733 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2734 * @vport: pointer to lpfc_vport data structure. 2735 * 2736 * This function issue a init_vfi mailbox command to initialize the VFI and 2737 * VPI for the physical port. 2738 */ 2739 void 2740 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2741 { 2742 LPFC_MBOXQ_t *mboxq; 2743 int rc; 2744 struct lpfc_hba *phba = vport->phba; 2745 2746 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2747 if (!mboxq) { 2748 lpfc_printf_vlog(vport, KERN_ERR, 2749 LOG_MBOX, "2892 Failed to allocate " 2750 "init_vfi mailbox\n"); 2751 return; 2752 } 2753 lpfc_init_vfi(mboxq, vport); 2754 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2755 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2756 if (rc == MBX_NOT_FINISHED) { 2757 lpfc_printf_vlog(vport, KERN_ERR, 2758 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2759 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2760 } 2761 } 2762 2763 /** 2764 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2765 * @phba: pointer to lpfc hba data structure. 2766 * @mboxq: pointer to mailbox data structure. 2767 * 2768 * This function handles completion of init vpi mailbox command. 2769 */ 2770 void 2771 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2772 { 2773 struct lpfc_vport *vport = mboxq->vport; 2774 struct lpfc_nodelist *ndlp; 2775 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2776 2777 if (mboxq->u.mb.mbxStatus) { 2778 lpfc_printf_vlog(vport, KERN_ERR, 2779 LOG_MBOX, 2780 "2609 Init VPI mailbox failed 0x%x\n", 2781 mboxq->u.mb.mbxStatus); 2782 mempool_free(mboxq, phba->mbox_mem_pool); 2783 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2784 return; 2785 } 2786 spin_lock_irq(shost->host_lock); 2787 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2788 spin_unlock_irq(shost->host_lock); 2789 2790 /* If this port is physical port or FDISC is done, do reg_vpi */ 2791 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2792 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2793 if (!ndlp) 2794 lpfc_printf_vlog(vport, KERN_ERR, 2795 LOG_DISCOVERY, 2796 "2731 Cannot find fabric " 2797 "controller node\n"); 2798 else 2799 lpfc_register_new_vport(phba, vport, ndlp); 2800 mempool_free(mboxq, phba->mbox_mem_pool); 2801 return; 2802 } 2803 2804 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2805 lpfc_initial_fdisc(vport); 2806 else { 2807 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2808 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2809 "2606 No NPIV Fabric support\n"); 2810 } 2811 mempool_free(mboxq, phba->mbox_mem_pool); 2812 return; 2813 } 2814 2815 /** 2816 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2817 * @vport: pointer to lpfc_vport data structure. 2818 * 2819 * This function issue a init_vpi mailbox command to initialize 2820 * VPI for the vport. 2821 */ 2822 void 2823 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2824 { 2825 LPFC_MBOXQ_t *mboxq; 2826 int rc, vpi; 2827 2828 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2829 vpi = lpfc_alloc_vpi(vport->phba); 2830 if (!vpi) { 2831 lpfc_printf_vlog(vport, KERN_ERR, 2832 LOG_MBOX, 2833 "3303 Failed to obtain vport vpi\n"); 2834 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2835 return; 2836 } 2837 vport->vpi = vpi; 2838 } 2839 2840 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2841 if (!mboxq) { 2842 lpfc_printf_vlog(vport, KERN_ERR, 2843 LOG_MBOX, "2607 Failed to allocate " 2844 "init_vpi mailbox\n"); 2845 return; 2846 } 2847 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2848 mboxq->vport = vport; 2849 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2850 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2851 if (rc == MBX_NOT_FINISHED) { 2852 lpfc_printf_vlog(vport, KERN_ERR, 2853 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2854 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2855 } 2856 } 2857 2858 /** 2859 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2860 * @phba: pointer to lpfc hba data structure. 2861 * 2862 * This function loops through the list of vports on the @phba and issues an 2863 * FDISC if possible. 2864 */ 2865 void 2866 lpfc_start_fdiscs(struct lpfc_hba *phba) 2867 { 2868 struct lpfc_vport **vports; 2869 int i; 2870 2871 vports = lpfc_create_vport_work_array(phba); 2872 if (vports != NULL) { 2873 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2874 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2875 continue; 2876 /* There are no vpi for this vport */ 2877 if (vports[i]->vpi > phba->max_vpi) { 2878 lpfc_vport_set_state(vports[i], 2879 FC_VPORT_FAILED); 2880 continue; 2881 } 2882 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2883 lpfc_vport_set_state(vports[i], 2884 FC_VPORT_LINKDOWN); 2885 continue; 2886 } 2887 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2888 lpfc_issue_init_vpi(vports[i]); 2889 continue; 2890 } 2891 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2892 lpfc_initial_fdisc(vports[i]); 2893 else { 2894 lpfc_vport_set_state(vports[i], 2895 FC_VPORT_NO_FABRIC_SUPP); 2896 lpfc_printf_vlog(vports[i], KERN_ERR, 2897 LOG_ELS, 2898 "0259 No NPIV " 2899 "Fabric support\n"); 2900 } 2901 } 2902 } 2903 lpfc_destroy_vport_work_array(phba, vports); 2904 } 2905 2906 void 2907 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2908 { 2909 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2910 struct lpfc_vport *vport = mboxq->vport; 2911 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2912 2913 /* 2914 * VFI not supported for interface type 0, so ignore any mailbox 2915 * error (except VFI in use) and continue with the discovery. 2916 */ 2917 if (mboxq->u.mb.mbxStatus && 2918 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2919 LPFC_SLI_INTF_IF_TYPE_0) && 2920 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2921 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2922 "2018 REG_VFI mbxStatus error x%x " 2923 "HBA state x%x\n", 2924 mboxq->u.mb.mbxStatus, vport->port_state); 2925 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2926 /* FLOGI failed, use loop map to make discovery list */ 2927 lpfc_disc_list_loopmap(vport); 2928 /* Start discovery */ 2929 lpfc_disc_start(vport); 2930 goto out_free_mem; 2931 } 2932 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2933 goto out_free_mem; 2934 } 2935 2936 /* If the VFI is already registered, there is nothing else to do 2937 * Unless this was a VFI update and we are in PT2PT mode, then 2938 * we should drop through to set the port state to ready. 2939 */ 2940 if (vport->fc_flag & FC_VFI_REGISTERED) 2941 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2942 vport->fc_flag & FC_PT2PT)) 2943 goto out_free_mem; 2944 2945 /* The VPI is implicitly registered when the VFI is registered */ 2946 spin_lock_irq(shost->host_lock); 2947 vport->vpi_state |= LPFC_VPI_REGISTERED; 2948 vport->fc_flag |= FC_VFI_REGISTERED; 2949 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2950 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2951 spin_unlock_irq(shost->host_lock); 2952 2953 /* In case SLI4 FC loopback test, we are ready */ 2954 if ((phba->sli_rev == LPFC_SLI_REV4) && 2955 (phba->link_flag & LS_LOOPBACK_MODE)) { 2956 phba->link_state = LPFC_HBA_READY; 2957 goto out_free_mem; 2958 } 2959 2960 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2961 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2962 "alpacnt:%d LinkState:%x topology:%x\n", 2963 vport->port_state, vport->fc_flag, vport->fc_myDID, 2964 vport->phba->alpa_map[0], 2965 phba->link_state, phba->fc_topology); 2966 2967 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2968 /* 2969 * For private loop or for NPort pt2pt, 2970 * just start discovery and we are done. 2971 */ 2972 if ((vport->fc_flag & FC_PT2PT) || 2973 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2974 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2975 2976 /* Use loop map to make discovery list */ 2977 lpfc_disc_list_loopmap(vport); 2978 /* Start discovery */ 2979 if (vport->fc_flag & FC_PT2PT) 2980 vport->port_state = LPFC_VPORT_READY; 2981 else 2982 lpfc_disc_start(vport); 2983 } else { 2984 lpfc_start_fdiscs(phba); 2985 lpfc_do_scr_ns_plogi(phba, vport); 2986 } 2987 } 2988 2989 out_free_mem: 2990 mempool_free(mboxq, phba->mbox_mem_pool); 2991 if (dmabuf) { 2992 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2993 kfree(dmabuf); 2994 } 2995 return; 2996 } 2997 2998 static void 2999 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3000 { 3001 MAILBOX_t *mb = &pmb->u.mb; 3002 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 3003 struct lpfc_vport *vport = pmb->vport; 3004 struct serv_parm *sp = &vport->fc_sparam; 3005 uint32_t ed_tov; 3006 3007 /* Check for error */ 3008 if (mb->mbxStatus) { 3009 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3010 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3011 "0319 READ_SPARAM mbxStatus error x%x " 3012 "hba state x%x>\n", 3013 mb->mbxStatus, vport->port_state); 3014 lpfc_linkdown(phba); 3015 goto out; 3016 } 3017 3018 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3019 sizeof (struct serv_parm)); 3020 3021 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3022 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3023 ed_tov = (ed_tov + 999999) / 1000000; 3024 3025 phba->fc_edtov = ed_tov; 3026 phba->fc_ratov = (2 * ed_tov) / 1000; 3027 if (phba->fc_ratov < FF_DEF_RATOV) { 3028 /* RA_TOV should be atleast 10sec for initial flogi */ 3029 phba->fc_ratov = FF_DEF_RATOV; 3030 } 3031 3032 lpfc_update_vport_wwn(vport); 3033 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3034 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3035 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3036 } 3037 3038 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3039 kfree(mp); 3040 mempool_free(pmb, phba->mbox_mem_pool); 3041 return; 3042 3043 out: 3044 pmb->context1 = NULL; 3045 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3046 kfree(mp); 3047 lpfc_issue_clear_la(phba, vport); 3048 mempool_free(pmb, phba->mbox_mem_pool); 3049 return; 3050 } 3051 3052 static void 3053 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3054 { 3055 struct lpfc_vport *vport = phba->pport; 3056 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3057 struct Scsi_Host *shost; 3058 int i; 3059 struct lpfc_dmabuf *mp; 3060 int rc; 3061 struct fcf_record *fcf_record; 3062 uint32_t fc_flags = 0; 3063 3064 spin_lock_irq(&phba->hbalock); 3065 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3066 3067 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3068 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3069 case LPFC_LINK_SPEED_1GHZ: 3070 case LPFC_LINK_SPEED_2GHZ: 3071 case LPFC_LINK_SPEED_4GHZ: 3072 case LPFC_LINK_SPEED_8GHZ: 3073 case LPFC_LINK_SPEED_10GHZ: 3074 case LPFC_LINK_SPEED_16GHZ: 3075 case LPFC_LINK_SPEED_32GHZ: 3076 break; 3077 default: 3078 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3079 break; 3080 } 3081 } 3082 3083 if (phba->fc_topology && 3084 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3085 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3086 "3314 Toplogy changed was 0x%x is 0x%x\n", 3087 phba->fc_topology, 3088 bf_get(lpfc_mbx_read_top_topology, la)); 3089 phba->fc_topology_changed = 1; 3090 } 3091 3092 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3093 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3094 3095 shost = lpfc_shost_from_vport(vport); 3096 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3097 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3098 3099 /* if npiv is enabled and this adapter supports npiv log 3100 * a message that npiv is not supported in this topology 3101 */ 3102 if (phba->cfg_enable_npiv && phba->max_vpi) 3103 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3104 "1309 Link Up Event npiv not supported in loop " 3105 "topology\n"); 3106 /* Get Loop Map information */ 3107 if (bf_get(lpfc_mbx_read_top_il, la)) 3108 fc_flags |= FC_LBIT; 3109 3110 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3111 i = la->lilpBde64.tus.f.bdeSize; 3112 3113 if (i == 0) { 3114 phba->alpa_map[0] = 0; 3115 } else { 3116 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3117 int numalpa, j, k; 3118 union { 3119 uint8_t pamap[16]; 3120 struct { 3121 uint32_t wd1; 3122 uint32_t wd2; 3123 uint32_t wd3; 3124 uint32_t wd4; 3125 } pa; 3126 } un; 3127 numalpa = phba->alpa_map[0]; 3128 j = 0; 3129 while (j < numalpa) { 3130 memset(un.pamap, 0, 16); 3131 for (k = 1; j < numalpa; k++) { 3132 un.pamap[k - 1] = 3133 phba->alpa_map[j + 1]; 3134 j++; 3135 if (k == 16) 3136 break; 3137 } 3138 /* Link Up Event ALPA map */ 3139 lpfc_printf_log(phba, 3140 KERN_WARNING, 3141 LOG_LINK_EVENT, 3142 "1304 Link Up Event " 3143 "ALPA map Data: x%x " 3144 "x%x x%x x%x\n", 3145 un.pa.wd1, un.pa.wd2, 3146 un.pa.wd3, un.pa.wd4); 3147 } 3148 } 3149 } 3150 } else { 3151 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3152 if (phba->max_vpi && phba->cfg_enable_npiv && 3153 (phba->sli_rev >= LPFC_SLI_REV3)) 3154 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3155 } 3156 vport->fc_myDID = phba->fc_pref_DID; 3157 fc_flags |= FC_LBIT; 3158 } 3159 spin_unlock_irq(&phba->hbalock); 3160 3161 if (fc_flags) { 3162 spin_lock_irq(shost->host_lock); 3163 vport->fc_flag |= fc_flags; 3164 spin_unlock_irq(shost->host_lock); 3165 } 3166 3167 lpfc_linkup(phba); 3168 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3169 if (!sparam_mbox) 3170 goto out; 3171 3172 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3173 if (rc) { 3174 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3175 goto out; 3176 } 3177 sparam_mbox->vport = vport; 3178 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3179 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3180 if (rc == MBX_NOT_FINISHED) { 3181 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3182 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3183 kfree(mp); 3184 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3185 goto out; 3186 } 3187 3188 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3189 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3190 if (!cfglink_mbox) 3191 goto out; 3192 vport->port_state = LPFC_LOCAL_CFG_LINK; 3193 lpfc_config_link(phba, cfglink_mbox); 3194 cfglink_mbox->vport = vport; 3195 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3196 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3197 if (rc == MBX_NOT_FINISHED) { 3198 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3199 goto out; 3200 } 3201 } else { 3202 vport->port_state = LPFC_VPORT_UNKNOWN; 3203 /* 3204 * Add the driver's default FCF record at FCF index 0 now. This 3205 * is phase 1 implementation that support FCF index 0 and driver 3206 * defaults. 3207 */ 3208 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3209 fcf_record = kzalloc(sizeof(struct fcf_record), 3210 GFP_KERNEL); 3211 if (unlikely(!fcf_record)) { 3212 lpfc_printf_log(phba, KERN_ERR, 3213 LOG_MBOX | LOG_SLI, 3214 "2554 Could not allocate memory for " 3215 "fcf record\n"); 3216 rc = -ENODEV; 3217 goto out; 3218 } 3219 3220 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3221 LPFC_FCOE_FCF_DEF_INDEX); 3222 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3223 if (unlikely(rc)) { 3224 lpfc_printf_log(phba, KERN_ERR, 3225 LOG_MBOX | LOG_SLI, 3226 "2013 Could not manually add FCF " 3227 "record 0, status %d\n", rc); 3228 rc = -ENODEV; 3229 kfree(fcf_record); 3230 goto out; 3231 } 3232 kfree(fcf_record); 3233 } 3234 /* 3235 * The driver is expected to do FIP/FCF. Call the port 3236 * and get the FCF Table. 3237 */ 3238 spin_lock_irq(&phba->hbalock); 3239 if (phba->hba_flag & FCF_TS_INPROG) { 3240 spin_unlock_irq(&phba->hbalock); 3241 return; 3242 } 3243 /* This is the initial FCF discovery scan */ 3244 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3245 spin_unlock_irq(&phba->hbalock); 3246 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3247 "2778 Start FCF table scan at linkup\n"); 3248 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3249 LPFC_FCOE_FCF_GET_FIRST); 3250 if (rc) { 3251 spin_lock_irq(&phba->hbalock); 3252 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3253 spin_unlock_irq(&phba->hbalock); 3254 goto out; 3255 } 3256 /* Reset FCF roundrobin bmask for new discovery */ 3257 lpfc_sli4_clear_fcf_rr_bmask(phba); 3258 } 3259 3260 return; 3261 out: 3262 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3263 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3264 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3265 vport->port_state, sparam_mbox, cfglink_mbox); 3266 lpfc_issue_clear_la(phba, vport); 3267 return; 3268 } 3269 3270 static void 3271 lpfc_enable_la(struct lpfc_hba *phba) 3272 { 3273 uint32_t control; 3274 struct lpfc_sli *psli = &phba->sli; 3275 spin_lock_irq(&phba->hbalock); 3276 psli->sli_flag |= LPFC_PROCESS_LA; 3277 if (phba->sli_rev <= LPFC_SLI_REV3) { 3278 control = readl(phba->HCregaddr); 3279 control |= HC_LAINT_ENA; 3280 writel(control, phba->HCregaddr); 3281 readl(phba->HCregaddr); /* flush */ 3282 } 3283 spin_unlock_irq(&phba->hbalock); 3284 } 3285 3286 static void 3287 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3288 { 3289 lpfc_linkdown(phba); 3290 lpfc_enable_la(phba); 3291 lpfc_unregister_unused_fcf(phba); 3292 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3293 } 3294 3295 3296 /* 3297 * This routine handles processing a READ_TOPOLOGY mailbox 3298 * command upon completion. It is setup in the LPFC_MBOXQ 3299 * as the completion routine when the command is 3300 * handed off to the SLI layer. SLI4 only. 3301 */ 3302 void 3303 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3304 { 3305 struct lpfc_vport *vport = pmb->vport; 3306 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3307 struct lpfc_mbx_read_top *la; 3308 struct lpfc_sli_ring *pring; 3309 MAILBOX_t *mb = &pmb->u.mb; 3310 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3311 3312 /* Unblock ELS traffic */ 3313 pring = lpfc_phba_elsring(phba); 3314 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3315 3316 /* Check for error */ 3317 if (mb->mbxStatus) { 3318 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3319 "1307 READ_LA mbox error x%x state x%x\n", 3320 mb->mbxStatus, vport->port_state); 3321 lpfc_mbx_issue_link_down(phba); 3322 phba->link_state = LPFC_HBA_ERROR; 3323 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3324 } 3325 3326 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3327 3328 memcpy(&phba->alpa_map[0], mp->virt, 128); 3329 3330 spin_lock_irq(shost->host_lock); 3331 if (bf_get(lpfc_mbx_read_top_pb, la)) 3332 vport->fc_flag |= FC_BYPASSED_MODE; 3333 else 3334 vport->fc_flag &= ~FC_BYPASSED_MODE; 3335 spin_unlock_irq(shost->host_lock); 3336 3337 if (phba->fc_eventTag <= la->eventTag) { 3338 phba->fc_stat.LinkMultiEvent++; 3339 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3340 if (phba->fc_eventTag != 0) 3341 lpfc_linkdown(phba); 3342 } 3343 3344 phba->fc_eventTag = la->eventTag; 3345 if (phba->sli_rev < LPFC_SLI_REV4) { 3346 spin_lock_irq(&phba->hbalock); 3347 if (bf_get(lpfc_mbx_read_top_mm, la)) 3348 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3349 else 3350 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3351 spin_unlock_irq(&phba->hbalock); 3352 } 3353 3354 phba->link_events++; 3355 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3356 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3357 phba->fc_stat.LinkUp++; 3358 if (phba->link_flag & LS_LOOPBACK_MODE) { 3359 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3360 "1306 Link Up Event in loop back mode " 3361 "x%x received Data: x%x x%x x%x x%x\n", 3362 la->eventTag, phba->fc_eventTag, 3363 bf_get(lpfc_mbx_read_top_alpa_granted, 3364 la), 3365 bf_get(lpfc_mbx_read_top_link_spd, la), 3366 phba->alpa_map[0]); 3367 } else { 3368 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3369 "1303 Link Up Event x%x received " 3370 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3371 la->eventTag, phba->fc_eventTag, 3372 bf_get(lpfc_mbx_read_top_alpa_granted, 3373 la), 3374 bf_get(lpfc_mbx_read_top_link_spd, la), 3375 phba->alpa_map[0], 3376 bf_get(lpfc_mbx_read_top_mm, la), 3377 bf_get(lpfc_mbx_read_top_fa, la), 3378 phba->wait_4_mlo_maint_flg); 3379 } 3380 lpfc_mbx_process_link_up(phba, la); 3381 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3382 LPFC_ATT_LINK_DOWN) { 3383 phba->fc_stat.LinkDown++; 3384 if (phba->link_flag & LS_LOOPBACK_MODE) 3385 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3386 "1308 Link Down Event in loop back mode " 3387 "x%x received " 3388 "Data: x%x x%x x%x\n", 3389 la->eventTag, phba->fc_eventTag, 3390 phba->pport->port_state, vport->fc_flag); 3391 else 3392 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3393 "1305 Link Down Event x%x received " 3394 "Data: x%x x%x x%x x%x x%x\n", 3395 la->eventTag, phba->fc_eventTag, 3396 phba->pport->port_state, vport->fc_flag, 3397 bf_get(lpfc_mbx_read_top_mm, la), 3398 bf_get(lpfc_mbx_read_top_fa, la)); 3399 lpfc_mbx_issue_link_down(phba); 3400 } 3401 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) && 3402 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) { 3403 if (phba->link_state != LPFC_LINK_DOWN) { 3404 phba->fc_stat.LinkDown++; 3405 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3406 "1312 Link Down Event x%x received " 3407 "Data: x%x x%x x%x\n", 3408 la->eventTag, phba->fc_eventTag, 3409 phba->pport->port_state, vport->fc_flag); 3410 lpfc_mbx_issue_link_down(phba); 3411 } else 3412 lpfc_enable_la(phba); 3413 3414 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3415 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3416 "Data: x%x x%x x%x\n", 3417 la->eventTag, phba->fc_eventTag, 3418 phba->pport->port_state, vport->fc_flag); 3419 /* 3420 * The cmnd that triggered this will be waiting for this 3421 * signal. 3422 */ 3423 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3424 if (phba->wait_4_mlo_maint_flg) { 3425 phba->wait_4_mlo_maint_flg = 0; 3426 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3427 } 3428 } 3429 3430 if ((phba->sli_rev < LPFC_SLI_REV4) && 3431 bf_get(lpfc_mbx_read_top_fa, la)) { 3432 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3433 lpfc_issue_clear_la(phba, vport); 3434 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3435 "1311 fa %d\n", 3436 bf_get(lpfc_mbx_read_top_fa, la)); 3437 } 3438 3439 lpfc_mbx_cmpl_read_topology_free_mbuf: 3440 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3441 kfree(mp); 3442 mempool_free(pmb, phba->mbox_mem_pool); 3443 return; 3444 } 3445 3446 /* 3447 * This routine handles processing a REG_LOGIN mailbox 3448 * command upon completion. It is setup in the LPFC_MBOXQ 3449 * as the completion routine when the command is 3450 * handed off to the SLI layer. 3451 */ 3452 void 3453 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3454 { 3455 struct lpfc_vport *vport = pmb->vport; 3456 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3457 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3458 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3459 3460 pmb->context1 = NULL; 3461 pmb->context2 = NULL; 3462 3463 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3464 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3465 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3466 kref_read(&ndlp->kref), 3467 ndlp->nlp_usg_map, ndlp); 3468 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3469 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3470 3471 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3472 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3473 /* We rcvd a rscn after issuing this 3474 * mbox reg login, we may have cycled 3475 * back through the state and be 3476 * back at reg login state so this 3477 * mbox needs to be ignored becase 3478 * there is another reg login in 3479 * process. 3480 */ 3481 spin_lock_irq(shost->host_lock); 3482 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3483 spin_unlock_irq(shost->host_lock); 3484 3485 /* 3486 * We cannot leave the RPI registered because 3487 * if we go thru discovery again for this ndlp 3488 * a subsequent REG_RPI will fail. 3489 */ 3490 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3491 lpfc_unreg_rpi(vport, ndlp); 3492 } 3493 3494 /* Call state machine */ 3495 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3496 3497 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3498 kfree(mp); 3499 mempool_free(pmb, phba->mbox_mem_pool); 3500 /* decrement the node reference count held for this callback 3501 * function. 3502 */ 3503 lpfc_nlp_put(ndlp); 3504 3505 return; 3506 } 3507 3508 static void 3509 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3510 { 3511 MAILBOX_t *mb = &pmb->u.mb; 3512 struct lpfc_vport *vport = pmb->vport; 3513 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3514 3515 switch (mb->mbxStatus) { 3516 case 0x0011: 3517 case 0x0020: 3518 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3519 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3520 mb->mbxStatus); 3521 break; 3522 /* If VPI is busy, reset the HBA */ 3523 case 0x9700: 3524 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3525 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3526 vport->vpi, mb->mbxStatus); 3527 if (!(phba->pport->load_flag & FC_UNLOADING)) 3528 lpfc_workq_post_event(phba, NULL, NULL, 3529 LPFC_EVT_RESET_HBA); 3530 } 3531 spin_lock_irq(shost->host_lock); 3532 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3533 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3534 spin_unlock_irq(shost->host_lock); 3535 vport->unreg_vpi_cmpl = VPORT_OK; 3536 mempool_free(pmb, phba->mbox_mem_pool); 3537 lpfc_cleanup_vports_rrqs(vport, NULL); 3538 /* 3539 * This shost reference might have been taken at the beginning of 3540 * lpfc_vport_delete() 3541 */ 3542 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3543 scsi_host_put(shost); 3544 } 3545 3546 int 3547 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3548 { 3549 struct lpfc_hba *phba = vport->phba; 3550 LPFC_MBOXQ_t *mbox; 3551 int rc; 3552 3553 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3554 if (!mbox) 3555 return 1; 3556 3557 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3558 mbox->vport = vport; 3559 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3560 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3561 if (rc == MBX_NOT_FINISHED) { 3562 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3563 "1800 Could not issue unreg_vpi\n"); 3564 mempool_free(mbox, phba->mbox_mem_pool); 3565 vport->unreg_vpi_cmpl = VPORT_ERROR; 3566 return rc; 3567 } 3568 return 0; 3569 } 3570 3571 static void 3572 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3573 { 3574 struct lpfc_vport *vport = pmb->vport; 3575 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3576 MAILBOX_t *mb = &pmb->u.mb; 3577 3578 switch (mb->mbxStatus) { 3579 case 0x0011: 3580 case 0x9601: 3581 case 0x9602: 3582 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3583 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3584 mb->mbxStatus); 3585 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3586 spin_lock_irq(shost->host_lock); 3587 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3588 spin_unlock_irq(shost->host_lock); 3589 vport->fc_myDID = 0; 3590 3591 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3592 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3593 if (phba->nvmet_support) 3594 lpfc_nvmet_update_targetport(phba); 3595 else 3596 lpfc_nvme_update_localport(vport); 3597 } 3598 goto out; 3599 } 3600 3601 spin_lock_irq(shost->host_lock); 3602 vport->vpi_state |= LPFC_VPI_REGISTERED; 3603 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3604 spin_unlock_irq(shost->host_lock); 3605 vport->num_disc_nodes = 0; 3606 /* go thru NPR list and issue ELS PLOGIs */ 3607 if (vport->fc_npr_cnt) 3608 lpfc_els_disc_plogi(vport); 3609 3610 if (!vport->num_disc_nodes) { 3611 spin_lock_irq(shost->host_lock); 3612 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3613 spin_unlock_irq(shost->host_lock); 3614 lpfc_can_disctmo(vport); 3615 } 3616 vport->port_state = LPFC_VPORT_READY; 3617 3618 out: 3619 mempool_free(pmb, phba->mbox_mem_pool); 3620 return; 3621 } 3622 3623 /** 3624 * lpfc_create_static_vport - Read HBA config region to create static vports. 3625 * @phba: pointer to lpfc hba data structure. 3626 * 3627 * This routine issue a DUMP mailbox command for config region 22 to get 3628 * the list of static vports to be created. The function create vports 3629 * based on the information returned from the HBA. 3630 **/ 3631 void 3632 lpfc_create_static_vport(struct lpfc_hba *phba) 3633 { 3634 LPFC_MBOXQ_t *pmb = NULL; 3635 MAILBOX_t *mb; 3636 struct static_vport_info *vport_info; 3637 int mbx_wait_rc = 0, i; 3638 struct fc_vport_identifiers vport_id; 3639 struct fc_vport *new_fc_vport; 3640 struct Scsi_Host *shost; 3641 struct lpfc_vport *vport; 3642 uint16_t offset = 0; 3643 uint8_t *vport_buff; 3644 struct lpfc_dmabuf *mp; 3645 uint32_t byte_count = 0; 3646 3647 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3648 if (!pmb) { 3649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3650 "0542 lpfc_create_static_vport failed to" 3651 " allocate mailbox memory\n"); 3652 return; 3653 } 3654 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3655 mb = &pmb->u.mb; 3656 3657 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3658 if (!vport_info) { 3659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3660 "0543 lpfc_create_static_vport failed to" 3661 " allocate vport_info\n"); 3662 mempool_free(pmb, phba->mbox_mem_pool); 3663 return; 3664 } 3665 3666 vport_buff = (uint8_t *) vport_info; 3667 do { 3668 /* free dma buffer from previous round */ 3669 if (pmb->context1) { 3670 mp = (struct lpfc_dmabuf *)pmb->context1; 3671 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3672 kfree(mp); 3673 } 3674 if (lpfc_dump_static_vport(phba, pmb, offset)) 3675 goto out; 3676 3677 pmb->vport = phba->pport; 3678 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3679 LPFC_MBOX_TMO); 3680 3681 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3682 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3683 "0544 lpfc_create_static_vport failed to" 3684 " issue dump mailbox command ret 0x%x " 3685 "status 0x%x\n", 3686 mbx_wait_rc, mb->mbxStatus); 3687 goto out; 3688 } 3689 3690 if (phba->sli_rev == LPFC_SLI_REV4) { 3691 byte_count = pmb->u.mqe.un.mb_words[5]; 3692 mp = (struct lpfc_dmabuf *)pmb->context1; 3693 if (byte_count > sizeof(struct static_vport_info) - 3694 offset) 3695 byte_count = sizeof(struct static_vport_info) 3696 - offset; 3697 memcpy(vport_buff + offset, mp->virt, byte_count); 3698 offset += byte_count; 3699 } else { 3700 if (mb->un.varDmp.word_cnt > 3701 sizeof(struct static_vport_info) - offset) 3702 mb->un.varDmp.word_cnt = 3703 sizeof(struct static_vport_info) 3704 - offset; 3705 byte_count = mb->un.varDmp.word_cnt; 3706 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3707 vport_buff + offset, 3708 byte_count); 3709 3710 offset += byte_count; 3711 } 3712 3713 } while (byte_count && 3714 offset < sizeof(struct static_vport_info)); 3715 3716 3717 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3718 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3719 != VPORT_INFO_REV)) { 3720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3721 "0545 lpfc_create_static_vport bad" 3722 " information header 0x%x 0x%x\n", 3723 le32_to_cpu(vport_info->signature), 3724 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3725 3726 goto out; 3727 } 3728 3729 shost = lpfc_shost_from_vport(phba->pport); 3730 3731 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3732 memset(&vport_id, 0, sizeof(vport_id)); 3733 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3734 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3735 if (!vport_id.port_name || !vport_id.node_name) 3736 continue; 3737 3738 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3739 vport_id.vport_type = FC_PORTTYPE_NPIV; 3740 vport_id.disable = false; 3741 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3742 3743 if (!new_fc_vport) { 3744 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3745 "0546 lpfc_create_static_vport failed to" 3746 " create vport\n"); 3747 continue; 3748 } 3749 3750 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3751 vport->vport_flag |= STATIC_VPORT; 3752 } 3753 3754 out: 3755 kfree(vport_info); 3756 if (mbx_wait_rc != MBX_TIMEOUT) { 3757 if (pmb->context1) { 3758 mp = (struct lpfc_dmabuf *)pmb->context1; 3759 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3760 kfree(mp); 3761 } 3762 mempool_free(pmb, phba->mbox_mem_pool); 3763 } 3764 3765 return; 3766 } 3767 3768 /* 3769 * This routine handles processing a Fabric REG_LOGIN mailbox 3770 * command upon completion. It is setup in the LPFC_MBOXQ 3771 * as the completion routine when the command is 3772 * handed off to the SLI layer. 3773 */ 3774 void 3775 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3776 { 3777 struct lpfc_vport *vport = pmb->vport; 3778 MAILBOX_t *mb = &pmb->u.mb; 3779 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3780 struct lpfc_nodelist *ndlp; 3781 struct Scsi_Host *shost; 3782 3783 ndlp = (struct lpfc_nodelist *) pmb->context2; 3784 pmb->context1 = NULL; 3785 pmb->context2 = NULL; 3786 3787 if (mb->mbxStatus) { 3788 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3789 "0258 Register Fabric login error: 0x%x\n", 3790 mb->mbxStatus); 3791 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3792 kfree(mp); 3793 mempool_free(pmb, phba->mbox_mem_pool); 3794 3795 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3796 /* FLOGI failed, use loop map to make discovery list */ 3797 lpfc_disc_list_loopmap(vport); 3798 3799 /* Start discovery */ 3800 lpfc_disc_start(vport); 3801 /* Decrement the reference count to ndlp after the 3802 * reference to the ndlp are done. 3803 */ 3804 lpfc_nlp_put(ndlp); 3805 return; 3806 } 3807 3808 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3809 /* Decrement the reference count to ndlp after the reference 3810 * to the ndlp are done. 3811 */ 3812 lpfc_nlp_put(ndlp); 3813 return; 3814 } 3815 3816 if (phba->sli_rev < LPFC_SLI_REV4) 3817 ndlp->nlp_rpi = mb->un.varWords[0]; 3818 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3819 ndlp->nlp_type |= NLP_FABRIC; 3820 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3821 3822 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3823 /* when physical port receive logo donot start 3824 * vport discovery */ 3825 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3826 lpfc_start_fdiscs(phba); 3827 else { 3828 shost = lpfc_shost_from_vport(vport); 3829 spin_lock_irq(shost->host_lock); 3830 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3831 spin_unlock_irq(shost->host_lock); 3832 } 3833 lpfc_do_scr_ns_plogi(phba, vport); 3834 } 3835 3836 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3837 kfree(mp); 3838 mempool_free(pmb, phba->mbox_mem_pool); 3839 3840 /* Drop the reference count from the mbox at the end after 3841 * all the current reference to the ndlp have been done. 3842 */ 3843 lpfc_nlp_put(ndlp); 3844 return; 3845 } 3846 3847 /* 3848 * This routine will issue a GID_FT for each FC4 Type supported 3849 * by the driver. ALL GID_FTs must complete before discovery is started. 3850 */ 3851 int 3852 lpfc_issue_gidft(struct lpfc_vport *vport) 3853 { 3854 struct lpfc_hba *phba = vport->phba; 3855 3856 /* Good status, issue CT Request to NameServer */ 3857 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3858 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3859 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3860 /* Cannot issue NameServer FCP Query, so finish up 3861 * discovery 3862 */ 3863 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3864 "0604 %s FC TYPE %x %s\n", 3865 "Failed to issue GID_FT to ", 3866 FC_TYPE_FCP, 3867 "Finishing discovery."); 3868 return 0; 3869 } 3870 vport->gidft_inp++; 3871 } 3872 3873 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3874 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3875 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3876 /* Cannot issue NameServer NVME Query, so finish up 3877 * discovery 3878 */ 3879 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3880 "0605 %s FC_TYPE %x %s %d\n", 3881 "Failed to issue GID_FT to ", 3882 FC_TYPE_NVME, 3883 "Finishing discovery: gidftinp ", 3884 vport->gidft_inp); 3885 if (vport->gidft_inp == 0) 3886 return 0; 3887 } else 3888 vport->gidft_inp++; 3889 } 3890 return vport->gidft_inp; 3891 } 3892 3893 /* 3894 * This routine handles processing a NameServer REG_LOGIN mailbox 3895 * command upon completion. It is setup in the LPFC_MBOXQ 3896 * as the completion routine when the command is 3897 * handed off to the SLI layer. 3898 */ 3899 void 3900 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3901 { 3902 MAILBOX_t *mb = &pmb->u.mb; 3903 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3904 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3905 struct lpfc_vport *vport = pmb->vport; 3906 3907 pmb->context1 = NULL; 3908 pmb->context2 = NULL; 3909 vport->gidft_inp = 0; 3910 3911 if (mb->mbxStatus) { 3912 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3913 "0260 Register NameServer error: 0x%x\n", 3914 mb->mbxStatus); 3915 3916 out: 3917 /* decrement the node reference count held for this 3918 * callback function. 3919 */ 3920 lpfc_nlp_put(ndlp); 3921 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3922 kfree(mp); 3923 mempool_free(pmb, phba->mbox_mem_pool); 3924 3925 /* If no other thread is using the ndlp, free it */ 3926 lpfc_nlp_not_used(ndlp); 3927 3928 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3929 /* 3930 * RegLogin failed, use loop map to make discovery 3931 * list 3932 */ 3933 lpfc_disc_list_loopmap(vport); 3934 3935 /* Start discovery */ 3936 lpfc_disc_start(vport); 3937 return; 3938 } 3939 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3940 return; 3941 } 3942 3943 if (phba->sli_rev < LPFC_SLI_REV4) 3944 ndlp->nlp_rpi = mb->un.varWords[0]; 3945 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3946 ndlp->nlp_type |= NLP_FABRIC; 3947 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3948 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3949 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3950 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3951 kref_read(&ndlp->kref), 3952 ndlp->nlp_usg_map, ndlp); 3953 3954 if (vport->port_state < LPFC_VPORT_READY) { 3955 /* Link up discovery requires Fabric registration. */ 3956 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3957 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3958 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3959 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3960 3961 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3962 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 3963 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 3964 3965 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3966 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 3967 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 3968 FC_TYPE_NVME); 3969 3970 /* Issue SCR just before NameServer GID_FT Query */ 3971 lpfc_issue_els_scr(vport, SCR_DID, 0); 3972 } 3973 3974 vport->fc_ns_retry = 0; 3975 if (lpfc_issue_gidft(vport) == 0) 3976 goto out; 3977 3978 /* 3979 * At this point in time we may need to wait for multiple 3980 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 3981 * 3982 * decrement the node reference count held for this 3983 * callback function. 3984 */ 3985 lpfc_nlp_put(ndlp); 3986 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3987 kfree(mp); 3988 mempool_free(pmb, phba->mbox_mem_pool); 3989 3990 return; 3991 } 3992 3993 static void 3994 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3995 { 3996 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3997 struct fc_rport *rport; 3998 struct lpfc_rport_data *rdata; 3999 struct fc_rport_identifiers rport_ids; 4000 struct lpfc_hba *phba = vport->phba; 4001 4002 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4003 return; 4004 4005 /* Remote port has reappeared. Re-register w/ FC transport */ 4006 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4007 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4008 rport_ids.port_id = ndlp->nlp_DID; 4009 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4010 4011 /* 4012 * We leave our node pointer in rport->dd_data when we unregister a 4013 * FCP target port. But fc_remote_port_add zeros the space to which 4014 * rport->dd_data points. So, if we're reusing a previously 4015 * registered port, drop the reference that we took the last time we 4016 * registered the port. 4017 */ 4018 rport = ndlp->rport; 4019 if (rport) { 4020 rdata = rport->dd_data; 4021 /* break the link before dropping the ref */ 4022 ndlp->rport = NULL; 4023 if (rdata && rdata->pnode == ndlp) 4024 lpfc_nlp_put(ndlp); 4025 rdata->pnode = NULL; 4026 /* drop reference for earlier registeration */ 4027 put_device(&rport->dev); 4028 } 4029 4030 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4031 "rport add: did:x%x flg:x%x type x%x", 4032 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4033 4034 /* Don't add the remote port if unloading. */ 4035 if (vport->load_flag & FC_UNLOADING) 4036 return; 4037 4038 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4039 if (!rport || !get_device(&rport->dev)) { 4040 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4041 "Warning: fc_remote_port_add failed\n"); 4042 return; 4043 } 4044 4045 /* initialize static port data */ 4046 rport->maxframe_size = ndlp->nlp_maxframe; 4047 rport->supported_classes = ndlp->nlp_class_sup; 4048 rdata = rport->dd_data; 4049 rdata->pnode = lpfc_nlp_get(ndlp); 4050 4051 if (ndlp->nlp_type & NLP_FCP_TARGET) 4052 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4053 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4054 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4055 4056 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4057 fc_remote_port_rolechg(rport, rport_ids.roles); 4058 4059 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4060 "3183 rport register x%06x, rport %p role x%x\n", 4061 ndlp->nlp_DID, rport, rport_ids.roles); 4062 4063 if ((rport->scsi_target_id != -1) && 4064 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4065 ndlp->nlp_sid = rport->scsi_target_id; 4066 } 4067 return; 4068 } 4069 4070 static void 4071 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4072 { 4073 struct fc_rport *rport = ndlp->rport; 4074 struct lpfc_vport *vport = ndlp->vport; 4075 struct lpfc_hba *phba = vport->phba; 4076 4077 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4078 return; 4079 4080 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4081 "rport delete: did:x%x flg:x%x type x%x", 4082 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4083 4084 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4085 "3184 rport unregister x%06x, rport %p\n", 4086 ndlp->nlp_DID, rport); 4087 4088 fc_remote_port_delete(rport); 4089 4090 return; 4091 } 4092 4093 static void 4094 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4095 { 4096 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4097 4098 spin_lock_irq(shost->host_lock); 4099 switch (state) { 4100 case NLP_STE_UNUSED_NODE: 4101 vport->fc_unused_cnt += count; 4102 break; 4103 case NLP_STE_PLOGI_ISSUE: 4104 vport->fc_plogi_cnt += count; 4105 break; 4106 case NLP_STE_ADISC_ISSUE: 4107 vport->fc_adisc_cnt += count; 4108 break; 4109 case NLP_STE_REG_LOGIN_ISSUE: 4110 vport->fc_reglogin_cnt += count; 4111 break; 4112 case NLP_STE_PRLI_ISSUE: 4113 vport->fc_prli_cnt += count; 4114 break; 4115 case NLP_STE_UNMAPPED_NODE: 4116 vport->fc_unmap_cnt += count; 4117 break; 4118 case NLP_STE_MAPPED_NODE: 4119 vport->fc_map_cnt += count; 4120 break; 4121 case NLP_STE_NPR_NODE: 4122 if (vport->fc_npr_cnt == 0 && count == -1) 4123 vport->fc_npr_cnt = 0; 4124 else 4125 vport->fc_npr_cnt += count; 4126 break; 4127 } 4128 spin_unlock_irq(shost->host_lock); 4129 } 4130 4131 static void 4132 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4133 int old_state, int new_state) 4134 { 4135 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4136 struct lpfc_hba *phba = vport->phba; 4137 4138 if (new_state == NLP_STE_UNMAPPED_NODE) { 4139 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4140 ndlp->nlp_type |= NLP_FC_NODE; 4141 } 4142 if (new_state == NLP_STE_MAPPED_NODE) 4143 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4144 if (new_state == NLP_STE_NPR_NODE) 4145 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4146 4147 /* FCP and NVME Transport interface */ 4148 if ((old_state == NLP_STE_MAPPED_NODE || 4149 old_state == NLP_STE_UNMAPPED_NODE)) { 4150 if (ndlp->rport) { 4151 vport->phba->nport_event_cnt++; 4152 lpfc_unregister_remote_port(ndlp); 4153 } 4154 4155 /* Notify the NVME transport of this rport's loss */ 4156 if (((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4157 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) && 4158 (vport->phba->nvmet_support == 0) && 4159 ((ndlp->nlp_fc4_type & NLP_FC4_NVME) || 4160 (ndlp->nlp_DID == Fabric_DID))) { 4161 vport->phba->nport_event_cnt++; 4162 lpfc_nvme_unregister_port(vport, ndlp); 4163 } 4164 } 4165 4166 /* FCP and NVME Transport interfaces */ 4167 4168 if (new_state == NLP_STE_MAPPED_NODE || 4169 new_state == NLP_STE_UNMAPPED_NODE) { 4170 if ((ndlp->nlp_fc4_type & NLP_FC4_FCP) || 4171 (ndlp->nlp_DID == Fabric_DID)) { 4172 vport->phba->nport_event_cnt++; 4173 /* 4174 * Tell the fc transport about the port, if we haven't 4175 * already. If we have, and it's a scsi entity, be 4176 */ 4177 lpfc_register_remote_port(vport, ndlp); 4178 } 4179 /* Notify the NVME transport of this new rport. */ 4180 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4181 if (vport->phba->nvmet_support == 0) { 4182 /* Register this rport with the transport. 4183 * Initiators take the NDLP ref count in 4184 * the register. 4185 */ 4186 vport->phba->nport_event_cnt++; 4187 lpfc_nvme_register_port(vport, ndlp); 4188 } else { 4189 /* Just take an NDLP ref count since the 4190 * target does not register rports. 4191 */ 4192 lpfc_nlp_get(ndlp); 4193 } 4194 } 4195 } 4196 4197 if ((new_state == NLP_STE_MAPPED_NODE) && 4198 (vport->stat_data_enabled)) { 4199 /* 4200 * A new target is discovered, if there is no buffer for 4201 * statistical data collection allocate buffer. 4202 */ 4203 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4204 sizeof(struct lpfc_scsicmd_bkt), 4205 GFP_KERNEL); 4206 4207 if (!ndlp->lat_data) 4208 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4209 "0286 lpfc_nlp_state_cleanup failed to " 4210 "allocate statistical data buffer DID " 4211 "0x%x\n", ndlp->nlp_DID); 4212 } 4213 /* 4214 * If the node just added to Mapped list was an FCP target, 4215 * but the remote port registration failed or assigned a target 4216 * id outside the presentable range - move the node to the 4217 * Unmapped List. 4218 */ 4219 if ((new_state == NLP_STE_MAPPED_NODE) && 4220 (ndlp->nlp_type & NLP_FCP_TARGET) && 4221 (!ndlp->rport || 4222 ndlp->rport->scsi_target_id == -1 || 4223 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4224 spin_lock_irq(shost->host_lock); 4225 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4226 spin_unlock_irq(shost->host_lock); 4227 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4228 } 4229 } 4230 4231 static char * 4232 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4233 { 4234 static char *states[] = { 4235 [NLP_STE_UNUSED_NODE] = "UNUSED", 4236 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4237 [NLP_STE_ADISC_ISSUE] = "ADISC", 4238 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4239 [NLP_STE_PRLI_ISSUE] = "PRLI", 4240 [NLP_STE_LOGO_ISSUE] = "LOGO", 4241 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4242 [NLP_STE_MAPPED_NODE] = "MAPPED", 4243 [NLP_STE_NPR_NODE] = "NPR", 4244 }; 4245 4246 if (state < NLP_STE_MAX_STATE && states[state]) 4247 strlcpy(buffer, states[state], size); 4248 else 4249 snprintf(buffer, size, "unknown (%d)", state); 4250 return buffer; 4251 } 4252 4253 void 4254 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4255 int state) 4256 { 4257 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4258 int old_state = ndlp->nlp_state; 4259 char name1[16], name2[16]; 4260 4261 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4262 "0904 NPort state transition x%06x, %s -> %s\n", 4263 ndlp->nlp_DID, 4264 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4265 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4266 4267 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4268 "node statechg did:x%x old:%d ste:%d", 4269 ndlp->nlp_DID, old_state, state); 4270 4271 if (old_state == NLP_STE_NPR_NODE && 4272 state != NLP_STE_NPR_NODE) 4273 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4274 if (old_state == NLP_STE_UNMAPPED_NODE) { 4275 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4276 ndlp->nlp_type &= ~NLP_FC_NODE; 4277 } 4278 4279 if (list_empty(&ndlp->nlp_listp)) { 4280 spin_lock_irq(shost->host_lock); 4281 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4282 spin_unlock_irq(shost->host_lock); 4283 } else if (old_state) 4284 lpfc_nlp_counters(vport, old_state, -1); 4285 4286 ndlp->nlp_state = state; 4287 lpfc_nlp_counters(vport, state, 1); 4288 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4289 } 4290 4291 void 4292 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4293 { 4294 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4295 4296 if (list_empty(&ndlp->nlp_listp)) { 4297 spin_lock_irq(shost->host_lock); 4298 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4299 spin_unlock_irq(shost->host_lock); 4300 } 4301 } 4302 4303 void 4304 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4305 { 4306 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4307 4308 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4309 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4310 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4311 spin_lock_irq(shost->host_lock); 4312 list_del_init(&ndlp->nlp_listp); 4313 spin_unlock_irq(shost->host_lock); 4314 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4315 NLP_STE_UNUSED_NODE); 4316 } 4317 4318 static void 4319 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4320 { 4321 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4322 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4323 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4324 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4325 NLP_STE_UNUSED_NODE); 4326 } 4327 /** 4328 * lpfc_initialize_node - Initialize all fields of node object 4329 * @vport: Pointer to Virtual Port object. 4330 * @ndlp: Pointer to FC node object. 4331 * @did: FC_ID of the node. 4332 * 4333 * This function is always called when node object need to be initialized. 4334 * It initializes all the fields of the node object. Although the reference 4335 * to phba from @ndlp can be obtained indirectly through it's reference to 4336 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4337 * to the life-span of the @ndlp might go beyond the existence of @vport as 4338 * the final release of ndlp is determined by its reference count. And, the 4339 * operation on @ndlp needs the reference to phba. 4340 **/ 4341 static inline void 4342 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4343 uint32_t did) 4344 { 4345 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4346 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4347 init_timer(&ndlp->nlp_delayfunc); 4348 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 4349 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 4350 ndlp->nlp_DID = did; 4351 ndlp->vport = vport; 4352 ndlp->phba = vport->phba; 4353 ndlp->nlp_sid = NLP_NO_SID; 4354 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4355 kref_init(&ndlp->kref); 4356 NLP_INT_NODE_ACT(ndlp); 4357 atomic_set(&ndlp->cmd_pending, 0); 4358 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4359 } 4360 4361 struct lpfc_nodelist * 4362 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4363 int state) 4364 { 4365 struct lpfc_hba *phba = vport->phba; 4366 uint32_t did; 4367 unsigned long flags; 4368 unsigned long *active_rrqs_xri_bitmap = NULL; 4369 4370 if (!ndlp) 4371 return NULL; 4372 4373 spin_lock_irqsave(&phba->ndlp_lock, flags); 4374 /* The ndlp should not be in memory free mode */ 4375 if (NLP_CHK_FREE_REQ(ndlp)) { 4376 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4377 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4378 "0277 lpfc_enable_node: ndlp:x%p " 4379 "usgmap:x%x refcnt:%d\n", 4380 (void *)ndlp, ndlp->nlp_usg_map, 4381 kref_read(&ndlp->kref)); 4382 return NULL; 4383 } 4384 /* The ndlp should not already be in active mode */ 4385 if (NLP_CHK_NODE_ACT(ndlp)) { 4386 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4387 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4388 "0278 lpfc_enable_node: ndlp:x%p " 4389 "usgmap:x%x refcnt:%d\n", 4390 (void *)ndlp, ndlp->nlp_usg_map, 4391 kref_read(&ndlp->kref)); 4392 return NULL; 4393 } 4394 4395 /* Keep the original DID */ 4396 did = ndlp->nlp_DID; 4397 if (phba->sli_rev == LPFC_SLI_REV4) 4398 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4399 4400 /* re-initialize ndlp except of ndlp linked list pointer */ 4401 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4402 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4403 lpfc_initialize_node(vport, ndlp, did); 4404 4405 if (phba->sli_rev == LPFC_SLI_REV4) 4406 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4407 4408 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4409 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4410 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4411 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4412 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4413 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4414 ndlp->nlp_flag, 4415 kref_read(&ndlp->kref), 4416 ndlp->nlp_usg_map, ndlp); 4417 } 4418 4419 4420 if (state != NLP_STE_UNUSED_NODE) 4421 lpfc_nlp_set_state(vport, ndlp, state); 4422 4423 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4424 "node enable: did:x%x", 4425 ndlp->nlp_DID, 0, 0); 4426 return ndlp; 4427 } 4428 4429 void 4430 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4431 { 4432 /* 4433 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4434 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4435 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4436 * until ALL other outstanding threads have completed. We check 4437 * that the ndlp not already in the UNUSED state before we proceed. 4438 */ 4439 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4440 return; 4441 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4442 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4443 lpfc_cleanup_vports_rrqs(vport, ndlp); 4444 lpfc_unreg_rpi(vport, ndlp); 4445 } 4446 4447 lpfc_nlp_put(ndlp); 4448 return; 4449 } 4450 4451 /* 4452 * Start / ReStart rescue timer for Discovery / RSCN handling 4453 */ 4454 void 4455 lpfc_set_disctmo(struct lpfc_vport *vport) 4456 { 4457 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4458 struct lpfc_hba *phba = vport->phba; 4459 uint32_t tmo; 4460 4461 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4462 /* For FAN, timeout should be greater than edtov */ 4463 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4464 } else { 4465 /* Normal discovery timeout should be > than ELS/CT timeout 4466 * FC spec states we need 3 * ratov for CT requests 4467 */ 4468 tmo = ((phba->fc_ratov * 3) + 3); 4469 } 4470 4471 4472 if (!timer_pending(&vport->fc_disctmo)) { 4473 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4474 "set disc timer: tmo:x%x state:x%x flg:x%x", 4475 tmo, vport->port_state, vport->fc_flag); 4476 } 4477 4478 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4479 spin_lock_irq(shost->host_lock); 4480 vport->fc_flag |= FC_DISC_TMO; 4481 spin_unlock_irq(shost->host_lock); 4482 4483 /* Start Discovery Timer state <hba_state> */ 4484 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4485 "0247 Start Discovery Timer state x%x " 4486 "Data: x%x x%lx x%x x%x\n", 4487 vport->port_state, tmo, 4488 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4489 vport->fc_adisc_cnt); 4490 4491 return; 4492 } 4493 4494 /* 4495 * Cancel rescue timer for Discovery / RSCN handling 4496 */ 4497 int 4498 lpfc_can_disctmo(struct lpfc_vport *vport) 4499 { 4500 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4501 unsigned long iflags; 4502 4503 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4504 "can disc timer: state:x%x rtry:x%x flg:x%x", 4505 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4506 4507 /* Turn off discovery timer if its running */ 4508 if (vport->fc_flag & FC_DISC_TMO) { 4509 spin_lock_irqsave(shost->host_lock, iflags); 4510 vport->fc_flag &= ~FC_DISC_TMO; 4511 spin_unlock_irqrestore(shost->host_lock, iflags); 4512 del_timer_sync(&vport->fc_disctmo); 4513 spin_lock_irqsave(&vport->work_port_lock, iflags); 4514 vport->work_port_events &= ~WORKER_DISC_TMO; 4515 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4516 } 4517 4518 /* Cancel Discovery Timer state <hba_state> */ 4519 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4520 "0248 Cancel Discovery Timer state x%x " 4521 "Data: x%x x%x x%x\n", 4522 vport->port_state, vport->fc_flag, 4523 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4524 return 0; 4525 } 4526 4527 /* 4528 * Check specified ring for outstanding IOCB on the SLI queue 4529 * Return true if iocb matches the specified nport 4530 */ 4531 int 4532 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4533 struct lpfc_sli_ring *pring, 4534 struct lpfc_iocbq *iocb, 4535 struct lpfc_nodelist *ndlp) 4536 { 4537 IOCB_t *icmd = &iocb->iocb; 4538 struct lpfc_vport *vport = ndlp->vport; 4539 4540 if (iocb->vport != vport) 4541 return 0; 4542 4543 if (pring->ringno == LPFC_ELS_RING) { 4544 switch (icmd->ulpCommand) { 4545 case CMD_GEN_REQUEST64_CR: 4546 if (iocb->context_un.ndlp == ndlp) 4547 return 1; 4548 case CMD_ELS_REQUEST64_CR: 4549 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4550 return 1; 4551 case CMD_XMIT_ELS_RSP64_CX: 4552 if (iocb->context1 == (uint8_t *) ndlp) 4553 return 1; 4554 } 4555 } else if (pring->ringno == LPFC_FCP_RING) { 4556 /* Skip match check if waiting to relogin to FCP target */ 4557 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4558 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4559 return 0; 4560 } 4561 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4562 return 1; 4563 } 4564 } 4565 return 0; 4566 } 4567 4568 static void 4569 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4570 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4571 struct list_head *dequeue_list) 4572 { 4573 struct lpfc_iocbq *iocb, *next_iocb; 4574 4575 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4576 /* Check to see if iocb matches the nport */ 4577 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4578 /* match, dequeue */ 4579 list_move_tail(&iocb->list, dequeue_list); 4580 } 4581 } 4582 4583 static void 4584 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4585 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4586 { 4587 struct lpfc_sli *psli = &phba->sli; 4588 uint32_t i; 4589 4590 spin_lock_irq(&phba->hbalock); 4591 for (i = 0; i < psli->num_rings; i++) 4592 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4593 dequeue_list); 4594 spin_unlock_irq(&phba->hbalock); 4595 } 4596 4597 static void 4598 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4599 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4600 { 4601 struct lpfc_sli_ring *pring; 4602 struct lpfc_queue *qp = NULL; 4603 4604 spin_lock_irq(&phba->hbalock); 4605 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4606 pring = qp->pring; 4607 if (!pring) 4608 continue; 4609 spin_lock_irq(&pring->ring_lock); 4610 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4611 spin_unlock_irq(&pring->ring_lock); 4612 } 4613 spin_unlock_irq(&phba->hbalock); 4614 } 4615 4616 /* 4617 * Free resources / clean up outstanding I/Os 4618 * associated with nlp_rpi in the LPFC_NODELIST entry. 4619 */ 4620 static int 4621 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4622 { 4623 LIST_HEAD(completions); 4624 4625 lpfc_fabric_abort_nport(ndlp); 4626 4627 /* 4628 * Everything that matches on txcmplq will be returned 4629 * by firmware with a no rpi error. 4630 */ 4631 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4632 if (phba->sli_rev != LPFC_SLI_REV4) 4633 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4634 else 4635 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4636 } 4637 4638 /* Cancel all the IOCBs from the completions list */ 4639 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4640 IOERR_SLI_ABORTED); 4641 4642 return 0; 4643 } 4644 4645 /** 4646 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4647 * @phba: Pointer to HBA context object. 4648 * @pmb: Pointer to mailbox object. 4649 * 4650 * This function will issue an ELS LOGO command after completing 4651 * the UNREG_RPI. 4652 **/ 4653 static void 4654 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4655 { 4656 struct lpfc_vport *vport = pmb->vport; 4657 struct lpfc_nodelist *ndlp; 4658 4659 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4660 if (!ndlp) 4661 return; 4662 lpfc_issue_els_logo(vport, ndlp, 0); 4663 mempool_free(pmb, phba->mbox_mem_pool); 4664 } 4665 4666 /* 4667 * Free rpi associated with LPFC_NODELIST entry. 4668 * This routine is called from lpfc_freenode(), when we are removing 4669 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4670 * LOGO that completes successfully, and we are waiting to PLOGI back 4671 * to the remote NPort. In addition, it is called after we receive 4672 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4673 * we are waiting to PLOGI back to the remote NPort. 4674 */ 4675 int 4676 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4677 { 4678 struct lpfc_hba *phba = vport->phba; 4679 LPFC_MBOXQ_t *mbox; 4680 int rc, acc_plogi = 1; 4681 uint16_t rpi; 4682 4683 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4684 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4685 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4686 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4687 "3366 RPI x%x needs to be " 4688 "unregistered nlp_flag x%x " 4689 "did x%x\n", 4690 ndlp->nlp_rpi, ndlp->nlp_flag, 4691 ndlp->nlp_DID); 4692 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4693 if (mbox) { 4694 /* SLI4 ports require the physical rpi value. */ 4695 rpi = ndlp->nlp_rpi; 4696 if (phba->sli_rev == LPFC_SLI_REV4) 4697 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4698 4699 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4700 mbox->vport = vport; 4701 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4702 mbox->context1 = ndlp; 4703 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4704 } else { 4705 if (phba->sli_rev == LPFC_SLI_REV4 && 4706 (!(vport->load_flag & FC_UNLOADING)) && 4707 (bf_get(lpfc_sli_intf_if_type, 4708 &phba->sli4_hba.sli_intf) == 4709 LPFC_SLI_INTF_IF_TYPE_2) && 4710 (kref_read(&ndlp->kref) > 0)) { 4711 mbox->context1 = lpfc_nlp_get(ndlp); 4712 mbox->mbox_cmpl = 4713 lpfc_sli4_unreg_rpi_cmpl_clr; 4714 /* 4715 * accept PLOGIs after unreg_rpi_cmpl 4716 */ 4717 acc_plogi = 0; 4718 } else 4719 mbox->mbox_cmpl = 4720 lpfc_sli_def_mbox_cmpl; 4721 } 4722 4723 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4724 if (rc == MBX_NOT_FINISHED) { 4725 mempool_free(mbox, phba->mbox_mem_pool); 4726 acc_plogi = 1; 4727 } 4728 } 4729 lpfc_no_rpi(phba, ndlp); 4730 4731 if (phba->sli_rev != LPFC_SLI_REV4) 4732 ndlp->nlp_rpi = 0; 4733 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4734 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4735 if (acc_plogi) 4736 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4737 return 1; 4738 } 4739 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4740 return 0; 4741 } 4742 4743 /** 4744 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4745 * @phba: pointer to lpfc hba data structure. 4746 * 4747 * This routine is invoked to unregister all the currently registered RPIs 4748 * to the HBA. 4749 **/ 4750 void 4751 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4752 { 4753 struct lpfc_vport **vports; 4754 struct lpfc_nodelist *ndlp; 4755 struct Scsi_Host *shost; 4756 int i; 4757 4758 vports = lpfc_create_vport_work_array(phba); 4759 if (!vports) { 4760 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4761 "2884 Vport array allocation failed \n"); 4762 return; 4763 } 4764 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4765 shost = lpfc_shost_from_vport(vports[i]); 4766 spin_lock_irq(shost->host_lock); 4767 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4768 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4769 /* The mempool_alloc might sleep */ 4770 spin_unlock_irq(shost->host_lock); 4771 lpfc_unreg_rpi(vports[i], ndlp); 4772 spin_lock_irq(shost->host_lock); 4773 } 4774 } 4775 spin_unlock_irq(shost->host_lock); 4776 } 4777 lpfc_destroy_vport_work_array(phba, vports); 4778 } 4779 4780 void 4781 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4782 { 4783 struct lpfc_hba *phba = vport->phba; 4784 LPFC_MBOXQ_t *mbox; 4785 int rc; 4786 4787 if (phba->sli_rev == LPFC_SLI_REV4) { 4788 lpfc_sli4_unreg_all_rpis(vport); 4789 return; 4790 } 4791 4792 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4793 if (mbox) { 4794 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4795 mbox); 4796 mbox->vport = vport; 4797 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4798 mbox->context1 = NULL; 4799 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4800 if (rc != MBX_TIMEOUT) 4801 mempool_free(mbox, phba->mbox_mem_pool); 4802 4803 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4804 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4805 "1836 Could not issue " 4806 "unreg_login(all_rpis) status %d\n", rc); 4807 } 4808 } 4809 4810 void 4811 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4812 { 4813 struct lpfc_hba *phba = vport->phba; 4814 LPFC_MBOXQ_t *mbox; 4815 int rc; 4816 4817 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4818 if (mbox) { 4819 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4820 mbox); 4821 mbox->vport = vport; 4822 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4823 mbox->context1 = NULL; 4824 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4825 if (rc != MBX_TIMEOUT) 4826 mempool_free(mbox, phba->mbox_mem_pool); 4827 4828 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4829 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4830 "1815 Could not issue " 4831 "unreg_did (default rpis) status %d\n", 4832 rc); 4833 } 4834 } 4835 4836 /* 4837 * Free resources associated with LPFC_NODELIST entry 4838 * so it can be freed. 4839 */ 4840 static int 4841 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4842 { 4843 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4844 struct lpfc_hba *phba = vport->phba; 4845 LPFC_MBOXQ_t *mb, *nextmb; 4846 struct lpfc_dmabuf *mp; 4847 4848 /* Cleanup node for NPort <nlp_DID> */ 4849 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4850 "0900 Cleanup node for NPort x%x " 4851 "Data: x%x x%x x%x\n", 4852 ndlp->nlp_DID, ndlp->nlp_flag, 4853 ndlp->nlp_state, ndlp->nlp_rpi); 4854 if (NLP_CHK_FREE_REQ(ndlp)) { 4855 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4856 "0280 lpfc_cleanup_node: ndlp:x%p " 4857 "usgmap:x%x refcnt:%d\n", 4858 (void *)ndlp, ndlp->nlp_usg_map, 4859 kref_read(&ndlp->kref)); 4860 lpfc_dequeue_node(vport, ndlp); 4861 } else { 4862 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4863 "0281 lpfc_cleanup_node: ndlp:x%p " 4864 "usgmap:x%x refcnt:%d\n", 4865 (void *)ndlp, ndlp->nlp_usg_map, 4866 kref_read(&ndlp->kref)); 4867 lpfc_disable_node(vport, ndlp); 4868 } 4869 4870 4871 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4872 4873 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4874 if ((mb = phba->sli.mbox_active)) { 4875 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4876 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4877 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4878 mb->context2 = NULL; 4879 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4880 } 4881 } 4882 4883 spin_lock_irq(&phba->hbalock); 4884 /* Cleanup REG_LOGIN completions which are not yet processed */ 4885 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4886 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4887 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4888 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4889 continue; 4890 4891 mb->context2 = NULL; 4892 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4893 } 4894 4895 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4896 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4897 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4898 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4899 mp = (struct lpfc_dmabuf *) (mb->context1); 4900 if (mp) { 4901 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4902 kfree(mp); 4903 } 4904 list_del(&mb->list); 4905 mempool_free(mb, phba->mbox_mem_pool); 4906 /* We shall not invoke the lpfc_nlp_put to decrement 4907 * the ndlp reference count as we are in the process 4908 * of lpfc_nlp_release. 4909 */ 4910 } 4911 } 4912 spin_unlock_irq(&phba->hbalock); 4913 4914 lpfc_els_abort(phba, ndlp); 4915 4916 spin_lock_irq(shost->host_lock); 4917 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4918 spin_unlock_irq(shost->host_lock); 4919 4920 ndlp->nlp_last_elscmd = 0; 4921 del_timer_sync(&ndlp->nlp_delayfunc); 4922 4923 list_del_init(&ndlp->els_retry_evt.evt_listp); 4924 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4925 lpfc_cleanup_vports_rrqs(vport, ndlp); 4926 lpfc_unreg_rpi(vport, ndlp); 4927 4928 return 0; 4929 } 4930 4931 /* 4932 * Check to see if we can free the nlp back to the freelist. 4933 * If we are in the middle of using the nlp in the discovery state 4934 * machine, defer the free till we reach the end of the state machine. 4935 */ 4936 static void 4937 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4938 { 4939 struct lpfc_hba *phba = vport->phba; 4940 struct lpfc_rport_data *rdata; 4941 struct fc_rport *rport; 4942 LPFC_MBOXQ_t *mbox; 4943 int rc; 4944 4945 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4946 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4947 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4948 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4949 /* For this case we need to cleanup the default rpi 4950 * allocated by the firmware. 4951 */ 4952 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4953 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4954 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4955 kref_read(&ndlp->kref), 4956 ndlp->nlp_usg_map, ndlp); 4957 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4958 != NULL) { 4959 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4960 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4961 if (rc) { 4962 mempool_free(mbox, phba->mbox_mem_pool); 4963 } 4964 else { 4965 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4966 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4967 mbox->vport = vport; 4968 mbox->context2 = ndlp; 4969 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4970 if (rc == MBX_NOT_FINISHED) { 4971 mempool_free(mbox, phba->mbox_mem_pool); 4972 } 4973 } 4974 } 4975 } 4976 lpfc_cleanup_node(vport, ndlp); 4977 4978 /* 4979 * ndlp->rport must be set to NULL before it reaches here 4980 * i.e. break rport/node link before doing lpfc_nlp_put for 4981 * registered rport and then drop the reference of rport. 4982 */ 4983 if (ndlp->rport) { 4984 /* 4985 * extra lpfc_nlp_put dropped the reference of ndlp 4986 * for registered rport so need to cleanup rport 4987 */ 4988 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4989 "0940 removed node x%p DID x%x " 4990 " rport not null %p\n", 4991 ndlp, ndlp->nlp_DID, ndlp->rport); 4992 rport = ndlp->rport; 4993 rdata = rport->dd_data; 4994 rdata->pnode = NULL; 4995 ndlp->rport = NULL; 4996 put_device(&rport->dev); 4997 } 4998 } 4999 5000 static int 5001 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5002 uint32_t did) 5003 { 5004 D_ID mydid, ndlpdid, matchdid; 5005 5006 if (did == Bcast_DID) 5007 return 0; 5008 5009 /* First check for Direct match */ 5010 if (ndlp->nlp_DID == did) 5011 return 1; 5012 5013 /* Next check for area/domain identically equals 0 match */ 5014 mydid.un.word = vport->fc_myDID; 5015 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5016 return 0; 5017 } 5018 5019 matchdid.un.word = did; 5020 ndlpdid.un.word = ndlp->nlp_DID; 5021 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5022 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5023 (mydid.un.b.area == matchdid.un.b.area)) { 5024 /* This code is supposed to match the ID 5025 * for a private loop device that is 5026 * connect to fl_port. But we need to 5027 * check that the port did not just go 5028 * from pt2pt to fabric or we could end 5029 * up matching ndlp->nlp_DID 000001 to 5030 * fabric DID 0x20101 5031 */ 5032 if ((ndlpdid.un.b.domain == 0) && 5033 (ndlpdid.un.b.area == 0)) { 5034 if (ndlpdid.un.b.id && 5035 vport->phba->fc_topology == 5036 LPFC_TOPOLOGY_LOOP) 5037 return 1; 5038 } 5039 return 0; 5040 } 5041 5042 matchdid.un.word = ndlp->nlp_DID; 5043 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5044 (mydid.un.b.area == ndlpdid.un.b.area)) { 5045 if ((matchdid.un.b.domain == 0) && 5046 (matchdid.un.b.area == 0)) { 5047 if (matchdid.un.b.id) 5048 return 1; 5049 } 5050 } 5051 } 5052 return 0; 5053 } 5054 5055 /* Search for a nodelist entry */ 5056 static struct lpfc_nodelist * 5057 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5058 { 5059 struct lpfc_nodelist *ndlp; 5060 uint32_t data1; 5061 5062 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5063 if (lpfc_matchdid(vport, ndlp, did)) { 5064 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5065 ((uint32_t) ndlp->nlp_xri << 16) | 5066 ((uint32_t) ndlp->nlp_type << 8) | 5067 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5068 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5069 "0929 FIND node DID " 5070 "Data: x%p x%x x%x x%x %p\n", 5071 ndlp, ndlp->nlp_DID, 5072 ndlp->nlp_flag, data1, 5073 ndlp->active_rrqs_xri_bitmap); 5074 return ndlp; 5075 } 5076 } 5077 5078 /* FIND node did <did> NOT FOUND */ 5079 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5080 "0932 FIND node did x%x NOT FOUND.\n", did); 5081 return NULL; 5082 } 5083 5084 struct lpfc_nodelist * 5085 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5086 { 5087 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5088 struct lpfc_nodelist *ndlp; 5089 unsigned long iflags; 5090 5091 spin_lock_irqsave(shost->host_lock, iflags); 5092 ndlp = __lpfc_findnode_did(vport, did); 5093 spin_unlock_irqrestore(shost->host_lock, iflags); 5094 return ndlp; 5095 } 5096 5097 struct lpfc_nodelist * 5098 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5099 { 5100 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5101 struct lpfc_nodelist *ndlp; 5102 5103 ndlp = lpfc_findnode_did(vport, did); 5104 if (!ndlp) { 5105 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5106 lpfc_rscn_payload_check(vport, did) == 0) 5107 return NULL; 5108 ndlp = (struct lpfc_nodelist *) 5109 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 5110 if (!ndlp) 5111 return NULL; 5112 lpfc_nlp_init(vport, ndlp, did); 5113 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5114 if (vport->phba->nvmet_support) 5115 return ndlp; 5116 spin_lock_irq(shost->host_lock); 5117 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5118 spin_unlock_irq(shost->host_lock); 5119 return ndlp; 5120 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5121 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5122 if (!ndlp) 5123 return NULL; 5124 if (vport->phba->nvmet_support) 5125 return ndlp; 5126 spin_lock_irq(shost->host_lock); 5127 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5128 spin_unlock_irq(shost->host_lock); 5129 return ndlp; 5130 } 5131 5132 if ((vport->fc_flag & FC_RSCN_MODE) && 5133 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5134 if (lpfc_rscn_payload_check(vport, did)) { 5135 /* If we've already received a PLOGI from this NPort 5136 * we don't need to try to discover it again. 5137 */ 5138 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5139 return NULL; 5140 5141 /* Since this node is marked for discovery, 5142 * delay timeout is not needed. 5143 */ 5144 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5145 if (vport->phba->nvmet_support) 5146 return ndlp; 5147 spin_lock_irq(shost->host_lock); 5148 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5149 spin_unlock_irq(shost->host_lock); 5150 } else 5151 ndlp = NULL; 5152 } else { 5153 /* If we've already received a PLOGI from this NPort, 5154 * or we are already in the process of discovery on it, 5155 * we don't need to try to discover it again. 5156 */ 5157 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5158 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5159 ndlp->nlp_flag & NLP_RCV_PLOGI) 5160 return NULL; 5161 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5162 if (vport->phba->nvmet_support) 5163 return ndlp; 5164 spin_lock_irq(shost->host_lock); 5165 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5166 spin_unlock_irq(shost->host_lock); 5167 } 5168 return ndlp; 5169 } 5170 5171 /* Build a list of nodes to discover based on the loopmap */ 5172 void 5173 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5174 { 5175 struct lpfc_hba *phba = vport->phba; 5176 int j; 5177 uint32_t alpa, index; 5178 5179 if (!lpfc_is_link_up(phba)) 5180 return; 5181 5182 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5183 return; 5184 5185 /* Check for loop map present or not */ 5186 if (phba->alpa_map[0]) { 5187 for (j = 1; j <= phba->alpa_map[0]; j++) { 5188 alpa = phba->alpa_map[j]; 5189 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5190 continue; 5191 lpfc_setup_disc_node(vport, alpa); 5192 } 5193 } else { 5194 /* No alpamap, so try all alpa's */ 5195 for (j = 0; j < FC_MAXLOOP; j++) { 5196 /* If cfg_scan_down is set, start from highest 5197 * ALPA (0xef) to lowest (0x1). 5198 */ 5199 if (vport->cfg_scan_down) 5200 index = j; 5201 else 5202 index = FC_MAXLOOP - j - 1; 5203 alpa = lpfcAlpaArray[index]; 5204 if ((vport->fc_myDID & 0xff) == alpa) 5205 continue; 5206 lpfc_setup_disc_node(vport, alpa); 5207 } 5208 } 5209 return; 5210 } 5211 5212 /* SLI3 only */ 5213 void 5214 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5215 { 5216 LPFC_MBOXQ_t *mbox; 5217 struct lpfc_sli *psli = &phba->sli; 5218 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5219 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5220 int rc; 5221 5222 /* 5223 * if it's not a physical port or if we already send 5224 * clear_la then don't send it. 5225 */ 5226 if ((phba->link_state >= LPFC_CLEAR_LA) || 5227 (vport->port_type != LPFC_PHYSICAL_PORT) || 5228 (phba->sli_rev == LPFC_SLI_REV4)) 5229 return; 5230 5231 /* Link up discovery */ 5232 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5233 phba->link_state = LPFC_CLEAR_LA; 5234 lpfc_clear_la(phba, mbox); 5235 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5236 mbox->vport = vport; 5237 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5238 if (rc == MBX_NOT_FINISHED) { 5239 mempool_free(mbox, phba->mbox_mem_pool); 5240 lpfc_disc_flush_list(vport); 5241 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5242 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5243 phba->link_state = LPFC_HBA_ERROR; 5244 } 5245 } 5246 } 5247 5248 /* Reg_vpi to tell firmware to resume normal operations */ 5249 void 5250 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5251 { 5252 LPFC_MBOXQ_t *regvpimbox; 5253 5254 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5255 if (regvpimbox) { 5256 lpfc_reg_vpi(vport, regvpimbox); 5257 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5258 regvpimbox->vport = vport; 5259 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5260 == MBX_NOT_FINISHED) { 5261 mempool_free(regvpimbox, phba->mbox_mem_pool); 5262 } 5263 } 5264 } 5265 5266 /* Start Link up / RSCN discovery on NPR nodes */ 5267 void 5268 lpfc_disc_start(struct lpfc_vport *vport) 5269 { 5270 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5271 struct lpfc_hba *phba = vport->phba; 5272 uint32_t num_sent; 5273 uint32_t clear_la_pending; 5274 5275 if (!lpfc_is_link_up(phba)) { 5276 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5277 "3315 Link is not up %x\n", 5278 phba->link_state); 5279 return; 5280 } 5281 5282 if (phba->link_state == LPFC_CLEAR_LA) 5283 clear_la_pending = 1; 5284 else 5285 clear_la_pending = 0; 5286 5287 if (vport->port_state < LPFC_VPORT_READY) 5288 vport->port_state = LPFC_DISC_AUTH; 5289 5290 lpfc_set_disctmo(vport); 5291 5292 vport->fc_prevDID = vport->fc_myDID; 5293 vport->num_disc_nodes = 0; 5294 5295 /* Start Discovery state <hba_state> */ 5296 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5297 "0202 Start Discovery hba state x%x " 5298 "Data: x%x x%x x%x\n", 5299 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5300 vport->fc_adisc_cnt); 5301 5302 /* First do ADISCs - if any */ 5303 num_sent = lpfc_els_disc_adisc(vport); 5304 5305 if (num_sent) 5306 return; 5307 5308 /* Register the VPI for SLI3, NPIV only. */ 5309 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5310 !(vport->fc_flag & FC_PT2PT) && 5311 !(vport->fc_flag & FC_RSCN_MODE) && 5312 (phba->sli_rev < LPFC_SLI_REV4)) { 5313 lpfc_issue_clear_la(phba, vport); 5314 lpfc_issue_reg_vpi(phba, vport); 5315 return; 5316 } 5317 5318 /* 5319 * For SLI2, we need to set port_state to READY and continue 5320 * discovery. 5321 */ 5322 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5323 /* If we get here, there is nothing to ADISC */ 5324 lpfc_issue_clear_la(phba, vport); 5325 5326 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5327 vport->num_disc_nodes = 0; 5328 /* go thru NPR nodes and issue ELS PLOGIs */ 5329 if (vport->fc_npr_cnt) 5330 lpfc_els_disc_plogi(vport); 5331 5332 if (!vport->num_disc_nodes) { 5333 spin_lock_irq(shost->host_lock); 5334 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5335 spin_unlock_irq(shost->host_lock); 5336 lpfc_can_disctmo(vport); 5337 } 5338 } 5339 vport->port_state = LPFC_VPORT_READY; 5340 } else { 5341 /* Next do PLOGIs - if any */ 5342 num_sent = lpfc_els_disc_plogi(vport); 5343 5344 if (num_sent) 5345 return; 5346 5347 if (vport->fc_flag & FC_RSCN_MODE) { 5348 /* Check to see if more RSCNs came in while we 5349 * were processing this one. 5350 */ 5351 if ((vport->fc_rscn_id_cnt == 0) && 5352 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5353 spin_lock_irq(shost->host_lock); 5354 vport->fc_flag &= ~FC_RSCN_MODE; 5355 spin_unlock_irq(shost->host_lock); 5356 lpfc_can_disctmo(vport); 5357 } else 5358 lpfc_els_handle_rscn(vport); 5359 } 5360 } 5361 return; 5362 } 5363 5364 /* 5365 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5366 * ring the match the sppecified nodelist. 5367 */ 5368 static void 5369 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5370 { 5371 LIST_HEAD(completions); 5372 struct lpfc_sli *psli; 5373 IOCB_t *icmd; 5374 struct lpfc_iocbq *iocb, *next_iocb; 5375 struct lpfc_sli_ring *pring; 5376 5377 psli = &phba->sli; 5378 pring = lpfc_phba_elsring(phba); 5379 5380 /* Error matching iocb on txq or txcmplq 5381 * First check the txq. 5382 */ 5383 spin_lock_irq(&phba->hbalock); 5384 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5385 if (iocb->context1 != ndlp) { 5386 continue; 5387 } 5388 icmd = &iocb->iocb; 5389 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5390 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5391 5392 list_move_tail(&iocb->list, &completions); 5393 } 5394 } 5395 5396 /* Next check the txcmplq */ 5397 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5398 if (iocb->context1 != ndlp) { 5399 continue; 5400 } 5401 icmd = &iocb->iocb; 5402 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5403 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5404 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5405 } 5406 } 5407 spin_unlock_irq(&phba->hbalock); 5408 5409 /* Cancel all the IOCBs from the completions list */ 5410 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5411 IOERR_SLI_ABORTED); 5412 } 5413 5414 static void 5415 lpfc_disc_flush_list(struct lpfc_vport *vport) 5416 { 5417 struct lpfc_nodelist *ndlp, *next_ndlp; 5418 struct lpfc_hba *phba = vport->phba; 5419 5420 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5421 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5422 nlp_listp) { 5423 if (!NLP_CHK_NODE_ACT(ndlp)) 5424 continue; 5425 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5426 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5427 lpfc_free_tx(phba, ndlp); 5428 } 5429 } 5430 } 5431 } 5432 5433 void 5434 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5435 { 5436 lpfc_els_flush_rscn(vport); 5437 lpfc_els_flush_cmd(vport); 5438 lpfc_disc_flush_list(vport); 5439 } 5440 5441 /*****************************************************************************/ 5442 /* 5443 * NAME: lpfc_disc_timeout 5444 * 5445 * FUNCTION: Fibre Channel driver discovery timeout routine. 5446 * 5447 * EXECUTION ENVIRONMENT: interrupt only 5448 * 5449 * CALLED FROM: 5450 * Timer function 5451 * 5452 * RETURNS: 5453 * none 5454 */ 5455 /*****************************************************************************/ 5456 void 5457 lpfc_disc_timeout(unsigned long ptr) 5458 { 5459 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5460 struct lpfc_hba *phba = vport->phba; 5461 uint32_t tmo_posted; 5462 unsigned long flags = 0; 5463 5464 if (unlikely(!phba)) 5465 return; 5466 5467 spin_lock_irqsave(&vport->work_port_lock, flags); 5468 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5469 if (!tmo_posted) 5470 vport->work_port_events |= WORKER_DISC_TMO; 5471 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5472 5473 if (!tmo_posted) 5474 lpfc_worker_wake_up(phba); 5475 return; 5476 } 5477 5478 static void 5479 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5480 { 5481 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5482 struct lpfc_hba *phba = vport->phba; 5483 struct lpfc_sli *psli = &phba->sli; 5484 struct lpfc_nodelist *ndlp, *next_ndlp; 5485 LPFC_MBOXQ_t *initlinkmbox; 5486 int rc, clrlaerr = 0; 5487 5488 if (!(vport->fc_flag & FC_DISC_TMO)) 5489 return; 5490 5491 spin_lock_irq(shost->host_lock); 5492 vport->fc_flag &= ~FC_DISC_TMO; 5493 spin_unlock_irq(shost->host_lock); 5494 5495 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5496 "disc timeout: state:x%x rtry:x%x flg:x%x", 5497 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5498 5499 switch (vport->port_state) { 5500 5501 case LPFC_LOCAL_CFG_LINK: 5502 /* 5503 * port_state is identically LPFC_LOCAL_CFG_LINK while 5504 * waiting for FAN timeout 5505 */ 5506 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5507 "0221 FAN timeout\n"); 5508 5509 /* Start discovery by sending FLOGI, clean up old rpis */ 5510 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5511 nlp_listp) { 5512 if (!NLP_CHK_NODE_ACT(ndlp)) 5513 continue; 5514 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5515 continue; 5516 if (ndlp->nlp_type & NLP_FABRIC) { 5517 /* Clean up the ndlp on Fabric connections */ 5518 lpfc_drop_node(vport, ndlp); 5519 5520 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5521 /* Fail outstanding IO now since device 5522 * is marked for PLOGI. 5523 */ 5524 lpfc_unreg_rpi(vport, ndlp); 5525 } 5526 } 5527 if (vport->port_state != LPFC_FLOGI) { 5528 if (phba->sli_rev <= LPFC_SLI_REV3) 5529 lpfc_initial_flogi(vport); 5530 else 5531 lpfc_issue_init_vfi(vport); 5532 return; 5533 } 5534 break; 5535 5536 case LPFC_FDISC: 5537 case LPFC_FLOGI: 5538 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5539 /* Initial FLOGI timeout */ 5540 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5541 "0222 Initial %s timeout\n", 5542 vport->vpi ? "FDISC" : "FLOGI"); 5543 5544 /* Assume no Fabric and go on with discovery. 5545 * Check for outstanding ELS FLOGI to abort. 5546 */ 5547 5548 /* FLOGI failed, so just use loop map to make discovery list */ 5549 lpfc_disc_list_loopmap(vport); 5550 5551 /* Start discovery */ 5552 lpfc_disc_start(vport); 5553 break; 5554 5555 case LPFC_FABRIC_CFG_LINK: 5556 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5557 NameServer login */ 5558 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5559 "0223 Timeout while waiting for " 5560 "NameServer login\n"); 5561 /* Next look for NameServer ndlp */ 5562 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5563 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5564 lpfc_els_abort(phba, ndlp); 5565 5566 /* ReStart discovery */ 5567 goto restart_disc; 5568 5569 case LPFC_NS_QRY: 5570 /* Check for wait for NameServer Rsp timeout */ 5571 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5572 "0224 NameServer Query timeout " 5573 "Data: x%x x%x\n", 5574 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5575 5576 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5577 /* Try it one more time */ 5578 vport->fc_ns_retry++; 5579 vport->gidft_inp = 0; 5580 rc = lpfc_issue_gidft(vport); 5581 if (rc == 0) 5582 break; 5583 } 5584 vport->fc_ns_retry = 0; 5585 5586 restart_disc: 5587 /* 5588 * Discovery is over. 5589 * set port_state to PORT_READY if SLI2. 5590 * cmpl_reg_vpi will set port_state to READY for SLI3. 5591 */ 5592 if (phba->sli_rev < LPFC_SLI_REV4) { 5593 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5594 lpfc_issue_reg_vpi(phba, vport); 5595 else { 5596 lpfc_issue_clear_la(phba, vport); 5597 vport->port_state = LPFC_VPORT_READY; 5598 } 5599 } 5600 5601 /* Setup and issue mailbox INITIALIZE LINK command */ 5602 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5603 if (!initlinkmbox) { 5604 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5605 "0206 Device Discovery " 5606 "completion error\n"); 5607 phba->link_state = LPFC_HBA_ERROR; 5608 break; 5609 } 5610 5611 lpfc_linkdown(phba); 5612 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5613 phba->cfg_link_speed); 5614 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5615 initlinkmbox->vport = vport; 5616 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5617 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5618 lpfc_set_loopback_flag(phba); 5619 if (rc == MBX_NOT_FINISHED) 5620 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5621 5622 break; 5623 5624 case LPFC_DISC_AUTH: 5625 /* Node Authentication timeout */ 5626 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5627 "0227 Node Authentication timeout\n"); 5628 lpfc_disc_flush_list(vport); 5629 5630 /* 5631 * set port_state to PORT_READY if SLI2. 5632 * cmpl_reg_vpi will set port_state to READY for SLI3. 5633 */ 5634 if (phba->sli_rev < LPFC_SLI_REV4) { 5635 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5636 lpfc_issue_reg_vpi(phba, vport); 5637 else { /* NPIV Not enabled */ 5638 lpfc_issue_clear_la(phba, vport); 5639 vport->port_state = LPFC_VPORT_READY; 5640 } 5641 } 5642 break; 5643 5644 case LPFC_VPORT_READY: 5645 if (vport->fc_flag & FC_RSCN_MODE) { 5646 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5647 "0231 RSCN timeout Data: x%x " 5648 "x%x\n", 5649 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5650 5651 /* Cleanup any outstanding ELS commands */ 5652 lpfc_els_flush_cmd(vport); 5653 5654 lpfc_els_flush_rscn(vport); 5655 lpfc_disc_flush_list(vport); 5656 } 5657 break; 5658 5659 default: 5660 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5661 "0273 Unexpected discovery timeout, " 5662 "vport State x%x\n", vport->port_state); 5663 break; 5664 } 5665 5666 switch (phba->link_state) { 5667 case LPFC_CLEAR_LA: 5668 /* CLEAR LA timeout */ 5669 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5670 "0228 CLEAR LA timeout\n"); 5671 clrlaerr = 1; 5672 break; 5673 5674 case LPFC_LINK_UP: 5675 lpfc_issue_clear_la(phba, vport); 5676 /* Drop thru */ 5677 case LPFC_LINK_UNKNOWN: 5678 case LPFC_WARM_START: 5679 case LPFC_INIT_START: 5680 case LPFC_INIT_MBX_CMDS: 5681 case LPFC_LINK_DOWN: 5682 case LPFC_HBA_ERROR: 5683 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5684 "0230 Unexpected timeout, hba link " 5685 "state x%x\n", phba->link_state); 5686 clrlaerr = 1; 5687 break; 5688 5689 case LPFC_HBA_READY: 5690 break; 5691 } 5692 5693 if (clrlaerr) { 5694 lpfc_disc_flush_list(vport); 5695 if (phba->sli_rev != LPFC_SLI_REV4) { 5696 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5697 ~LPFC_STOP_IOCB_EVENT; 5698 psli->sli3_ring[LPFC_FCP_RING].flag &= 5699 ~LPFC_STOP_IOCB_EVENT; 5700 } 5701 vport->port_state = LPFC_VPORT_READY; 5702 } 5703 return; 5704 } 5705 5706 /* 5707 * This routine handles processing a NameServer REG_LOGIN mailbox 5708 * command upon completion. It is setup in the LPFC_MBOXQ 5709 * as the completion routine when the command is 5710 * handed off to the SLI layer. 5711 */ 5712 void 5713 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5714 { 5715 MAILBOX_t *mb = &pmb->u.mb; 5716 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5717 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5718 struct lpfc_vport *vport = pmb->vport; 5719 5720 pmb->context1 = NULL; 5721 pmb->context2 = NULL; 5722 5723 if (phba->sli_rev < LPFC_SLI_REV4) 5724 ndlp->nlp_rpi = mb->un.varWords[0]; 5725 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5726 ndlp->nlp_type |= NLP_FABRIC; 5727 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5728 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5729 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5730 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5731 kref_read(&ndlp->kref), 5732 ndlp->nlp_usg_map, ndlp); 5733 /* 5734 * Start issuing Fabric-Device Management Interface (FDMI) command to 5735 * 0xfffffa (FDMI well known port). 5736 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5737 * DPRT -> RPRT (vports) 5738 */ 5739 if (vport->port_type == LPFC_PHYSICAL_PORT) 5740 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5741 else 5742 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5743 5744 5745 /* decrement the node reference count held for this callback 5746 * function. 5747 */ 5748 lpfc_nlp_put(ndlp); 5749 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5750 kfree(mp); 5751 mempool_free(pmb, phba->mbox_mem_pool); 5752 5753 return; 5754 } 5755 5756 static int 5757 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5758 { 5759 uint16_t *rpi = param; 5760 5761 /* check for active node */ 5762 if (!NLP_CHK_NODE_ACT(ndlp)) 5763 return 0; 5764 5765 return ndlp->nlp_rpi == *rpi; 5766 } 5767 5768 static int 5769 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5770 { 5771 return memcmp(&ndlp->nlp_portname, param, 5772 sizeof(ndlp->nlp_portname)) == 0; 5773 } 5774 5775 static struct lpfc_nodelist * 5776 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5777 { 5778 struct lpfc_nodelist *ndlp; 5779 5780 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5781 if (filter(ndlp, param)) { 5782 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5783 "3185 FIND node filter %p DID " 5784 "Data: x%p x%x x%x\n", 5785 filter, ndlp, ndlp->nlp_DID, 5786 ndlp->nlp_flag); 5787 return ndlp; 5788 } 5789 } 5790 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5791 "3186 FIND node filter %p NOT FOUND.\n", filter); 5792 return NULL; 5793 } 5794 5795 /* 5796 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5797 * returns the node list element pointer else return NULL. 5798 */ 5799 struct lpfc_nodelist * 5800 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5801 { 5802 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5803 } 5804 5805 /* 5806 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5807 * returns the node element list pointer else return NULL. 5808 */ 5809 struct lpfc_nodelist * 5810 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5811 { 5812 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5813 struct lpfc_nodelist *ndlp; 5814 5815 spin_lock_irq(shost->host_lock); 5816 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5817 spin_unlock_irq(shost->host_lock); 5818 return ndlp; 5819 } 5820 5821 /* 5822 * This routine looks up the ndlp lists for the given RPI. If the rpi 5823 * is found, the routine returns the node element list pointer else 5824 * return NULL. 5825 */ 5826 struct lpfc_nodelist * 5827 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5828 { 5829 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5830 struct lpfc_nodelist *ndlp; 5831 5832 spin_lock_irq(shost->host_lock); 5833 ndlp = __lpfc_findnode_rpi(vport, rpi); 5834 spin_unlock_irq(shost->host_lock); 5835 return ndlp; 5836 } 5837 5838 /** 5839 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5840 * @phba: pointer to lpfc hba data structure. 5841 * @vpi: the physical host virtual N_Port identifier. 5842 * 5843 * This routine finds a vport on a HBA (referred by @phba) through a 5844 * @vpi. The function walks the HBA's vport list and returns the address 5845 * of the vport with the matching @vpi. 5846 * 5847 * Return code 5848 * NULL - No vport with the matching @vpi found 5849 * Otherwise - Address to the vport with the matching @vpi. 5850 **/ 5851 struct lpfc_vport * 5852 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5853 { 5854 struct lpfc_vport *vport; 5855 unsigned long flags; 5856 int i = 0; 5857 5858 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5859 if (vpi > 0) { 5860 /* 5861 * Translate the physical vpi to the logical vpi. The 5862 * vport stores the logical vpi. 5863 */ 5864 for (i = 0; i < phba->max_vpi; i++) { 5865 if (vpi == phba->vpi_ids[i]) 5866 break; 5867 } 5868 5869 if (i >= phba->max_vpi) { 5870 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5871 "2936 Could not find Vport mapped " 5872 "to vpi %d\n", vpi); 5873 return NULL; 5874 } 5875 } 5876 5877 spin_lock_irqsave(&phba->hbalock, flags); 5878 list_for_each_entry(vport, &phba->port_list, listentry) { 5879 if (vport->vpi == i) { 5880 spin_unlock_irqrestore(&phba->hbalock, flags); 5881 return vport; 5882 } 5883 } 5884 spin_unlock_irqrestore(&phba->hbalock, flags); 5885 return NULL; 5886 } 5887 5888 void 5889 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5890 uint32_t did) 5891 { 5892 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5893 5894 lpfc_initialize_node(vport, ndlp, did); 5895 INIT_LIST_HEAD(&ndlp->nlp_listp); 5896 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5897 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 5898 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5899 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5900 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5901 ndlp->nlp_flag, 5902 kref_read(&ndlp->kref), 5903 ndlp->nlp_usg_map, ndlp); 5904 5905 ndlp->active_rrqs_xri_bitmap = 5906 mempool_alloc(vport->phba->active_rrq_pool, 5907 GFP_KERNEL); 5908 if (ndlp->active_rrqs_xri_bitmap) 5909 memset(ndlp->active_rrqs_xri_bitmap, 0, 5910 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5911 } 5912 5913 5914 5915 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5916 "node init: did:x%x", 5917 ndlp->nlp_DID, 0, 0); 5918 5919 return; 5920 } 5921 5922 /* This routine releases all resources associated with a specifc NPort's ndlp 5923 * and mempool_free's the nodelist. 5924 */ 5925 static void 5926 lpfc_nlp_release(struct kref *kref) 5927 { 5928 struct lpfc_hba *phba; 5929 unsigned long flags; 5930 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5931 kref); 5932 5933 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5934 "node release: did:x%x flg:x%x type:x%x", 5935 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5936 5937 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5938 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5939 "usgmap:x%x refcnt:%d rpi:%x\n", 5940 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5941 kref_read(&ndlp->kref), ndlp->nlp_rpi); 5942 5943 /* remove ndlp from action. */ 5944 lpfc_nlp_remove(ndlp->vport, ndlp); 5945 5946 /* clear the ndlp active flag for all release cases */ 5947 phba = ndlp->phba; 5948 spin_lock_irqsave(&phba->ndlp_lock, flags); 5949 NLP_CLR_NODE_ACT(ndlp); 5950 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5951 if (phba->sli_rev == LPFC_SLI_REV4) 5952 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5953 5954 /* free ndlp memory for final ndlp release */ 5955 if (NLP_CHK_FREE_REQ(ndlp)) { 5956 kfree(ndlp->lat_data); 5957 if (phba->sli_rev == LPFC_SLI_REV4) 5958 mempool_free(ndlp->active_rrqs_xri_bitmap, 5959 ndlp->phba->active_rrq_pool); 5960 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5961 } 5962 } 5963 5964 /* This routine bumps the reference count for a ndlp structure to ensure 5965 * that one discovery thread won't free a ndlp while another discovery thread 5966 * is using it. 5967 */ 5968 struct lpfc_nodelist * 5969 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5970 { 5971 struct lpfc_hba *phba; 5972 unsigned long flags; 5973 5974 if (ndlp) { 5975 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5976 "node get: did:x%x flg:x%x refcnt:x%x", 5977 ndlp->nlp_DID, ndlp->nlp_flag, 5978 kref_read(&ndlp->kref)); 5979 /* The check of ndlp usage to prevent incrementing the 5980 * ndlp reference count that is in the process of being 5981 * released. 5982 */ 5983 phba = ndlp->phba; 5984 spin_lock_irqsave(&phba->ndlp_lock, flags); 5985 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5986 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5987 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5988 "0276 lpfc_nlp_get: ndlp:x%p " 5989 "usgmap:x%x refcnt:%d\n", 5990 (void *)ndlp, ndlp->nlp_usg_map, 5991 kref_read(&ndlp->kref)); 5992 return NULL; 5993 } else 5994 kref_get(&ndlp->kref); 5995 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5996 } 5997 return ndlp; 5998 } 5999 6000 /* This routine decrements the reference count for a ndlp structure. If the 6001 * count goes to 0, this indicates the the associated nodelist should be 6002 * freed. Returning 1 indicates the ndlp resource has been released; on the 6003 * other hand, returning 0 indicates the ndlp resource has not been released 6004 * yet. 6005 */ 6006 int 6007 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6008 { 6009 struct lpfc_hba *phba; 6010 unsigned long flags; 6011 6012 if (!ndlp) 6013 return 1; 6014 6015 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6016 "node put: did:x%x flg:x%x refcnt:x%x", 6017 ndlp->nlp_DID, ndlp->nlp_flag, 6018 kref_read(&ndlp->kref)); 6019 phba = ndlp->phba; 6020 spin_lock_irqsave(&phba->ndlp_lock, flags); 6021 /* Check the ndlp memory free acknowledge flag to avoid the 6022 * possible race condition that kref_put got invoked again 6023 * after previous one has done ndlp memory free. 6024 */ 6025 if (NLP_CHK_FREE_ACK(ndlp)) { 6026 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6027 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6028 "0274 lpfc_nlp_put: ndlp:x%p " 6029 "usgmap:x%x refcnt:%d\n", 6030 (void *)ndlp, ndlp->nlp_usg_map, 6031 kref_read(&ndlp->kref)); 6032 return 1; 6033 } 6034 /* Check the ndlp inactivate log flag to avoid the possible 6035 * race condition that kref_put got invoked again after ndlp 6036 * is already in inactivating state. 6037 */ 6038 if (NLP_CHK_IACT_REQ(ndlp)) { 6039 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6040 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6041 "0275 lpfc_nlp_put: ndlp:x%p " 6042 "usgmap:x%x refcnt:%d\n", 6043 (void *)ndlp, ndlp->nlp_usg_map, 6044 kref_read(&ndlp->kref)); 6045 return 1; 6046 } 6047 /* For last put, mark the ndlp usage flags to make sure no 6048 * other kref_get and kref_put on the same ndlp shall get 6049 * in between the process when the final kref_put has been 6050 * invoked on this ndlp. 6051 */ 6052 if (kref_read(&ndlp->kref) == 1) { 6053 /* Indicate ndlp is put to inactive state. */ 6054 NLP_SET_IACT_REQ(ndlp); 6055 /* Acknowledge ndlp memory free has been seen. */ 6056 if (NLP_CHK_FREE_REQ(ndlp)) 6057 NLP_SET_FREE_ACK(ndlp); 6058 } 6059 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6060 /* Note, the kref_put returns 1 when decrementing a reference 6061 * count that was 1, it invokes the release callback function, 6062 * but it still left the reference count as 1 (not actually 6063 * performs the last decrementation). Otherwise, it actually 6064 * decrements the reference count and returns 0. 6065 */ 6066 return kref_put(&ndlp->kref, lpfc_nlp_release); 6067 } 6068 6069 /* This routine free's the specified nodelist if it is not in use 6070 * by any other discovery thread. This routine returns 1 if the 6071 * ndlp has been freed. A return value of 0 indicates the ndlp is 6072 * not yet been released. 6073 */ 6074 int 6075 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6076 { 6077 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6078 "node not used: did:x%x flg:x%x refcnt:x%x", 6079 ndlp->nlp_DID, ndlp->nlp_flag, 6080 kref_read(&ndlp->kref)); 6081 if (kref_read(&ndlp->kref) == 1) 6082 if (lpfc_nlp_put(ndlp)) 6083 return 1; 6084 return 0; 6085 } 6086 6087 /** 6088 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6089 * @phba: Pointer to hba context object. 6090 * 6091 * This function iterate through all FC nodes associated 6092 * will all vports to check if there is any node with 6093 * fc_rports associated with it. If there is an fc_rport 6094 * associated with the node, then the node is either in 6095 * discovered state or its devloss_timer is pending. 6096 */ 6097 static int 6098 lpfc_fcf_inuse(struct lpfc_hba *phba) 6099 { 6100 struct lpfc_vport **vports; 6101 int i, ret = 0; 6102 struct lpfc_nodelist *ndlp; 6103 struct Scsi_Host *shost; 6104 6105 vports = lpfc_create_vport_work_array(phba); 6106 6107 /* If driver cannot allocate memory, indicate fcf is in use */ 6108 if (!vports) 6109 return 1; 6110 6111 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6112 shost = lpfc_shost_from_vport(vports[i]); 6113 spin_lock_irq(shost->host_lock); 6114 /* 6115 * IF the CVL_RCVD bit is not set then we have sent the 6116 * flogi. 6117 * If dev_loss fires while we are waiting we do not want to 6118 * unreg the fcf. 6119 */ 6120 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6121 spin_unlock_irq(shost->host_lock); 6122 ret = 1; 6123 goto out; 6124 } 6125 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6126 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6127 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6128 ret = 1; 6129 spin_unlock_irq(shost->host_lock); 6130 goto out; 6131 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6132 ret = 1; 6133 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6134 "2624 RPI %x DID %x flag %x " 6135 "still logged in\n", 6136 ndlp->nlp_rpi, ndlp->nlp_DID, 6137 ndlp->nlp_flag); 6138 } 6139 } 6140 spin_unlock_irq(shost->host_lock); 6141 } 6142 out: 6143 lpfc_destroy_vport_work_array(phba, vports); 6144 return ret; 6145 } 6146 6147 /** 6148 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6149 * @phba: Pointer to hba context object. 6150 * @mboxq: Pointer to mailbox object. 6151 * 6152 * This function frees memory associated with the mailbox command. 6153 */ 6154 void 6155 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6156 { 6157 struct lpfc_vport *vport = mboxq->vport; 6158 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6159 6160 if (mboxq->u.mb.mbxStatus) { 6161 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6162 "2555 UNREG_VFI mbxStatus error x%x " 6163 "HBA state x%x\n", 6164 mboxq->u.mb.mbxStatus, vport->port_state); 6165 } 6166 spin_lock_irq(shost->host_lock); 6167 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6168 spin_unlock_irq(shost->host_lock); 6169 mempool_free(mboxq, phba->mbox_mem_pool); 6170 return; 6171 } 6172 6173 /** 6174 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6175 * @phba: Pointer to hba context object. 6176 * @mboxq: Pointer to mailbox object. 6177 * 6178 * This function frees memory associated with the mailbox command. 6179 */ 6180 static void 6181 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6182 { 6183 struct lpfc_vport *vport = mboxq->vport; 6184 6185 if (mboxq->u.mb.mbxStatus) { 6186 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6187 "2550 UNREG_FCFI mbxStatus error x%x " 6188 "HBA state x%x\n", 6189 mboxq->u.mb.mbxStatus, vport->port_state); 6190 } 6191 mempool_free(mboxq, phba->mbox_mem_pool); 6192 return; 6193 } 6194 6195 /** 6196 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6197 * @phba: Pointer to hba context object. 6198 * 6199 * This function prepare the HBA for unregistering the currently registered 6200 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6201 * VFIs. 6202 */ 6203 int 6204 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6205 { 6206 struct lpfc_vport **vports; 6207 struct lpfc_nodelist *ndlp; 6208 struct Scsi_Host *shost; 6209 int i = 0, rc; 6210 6211 /* Unregister RPIs */ 6212 if (lpfc_fcf_inuse(phba)) 6213 lpfc_unreg_hba_rpis(phba); 6214 6215 /* At this point, all discovery is aborted */ 6216 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6217 6218 /* Unregister VPIs */ 6219 vports = lpfc_create_vport_work_array(phba); 6220 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6221 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6222 /* Stop FLOGI/FDISC retries */ 6223 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6224 if (ndlp) 6225 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6226 lpfc_cleanup_pending_mbox(vports[i]); 6227 if (phba->sli_rev == LPFC_SLI_REV4) 6228 lpfc_sli4_unreg_all_rpis(vports[i]); 6229 lpfc_mbx_unreg_vpi(vports[i]); 6230 shost = lpfc_shost_from_vport(vports[i]); 6231 spin_lock_irq(shost->host_lock); 6232 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6233 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6234 spin_unlock_irq(shost->host_lock); 6235 } 6236 lpfc_destroy_vport_work_array(phba, vports); 6237 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6238 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6239 if (ndlp) 6240 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6241 lpfc_cleanup_pending_mbox(phba->pport); 6242 if (phba->sli_rev == LPFC_SLI_REV4) 6243 lpfc_sli4_unreg_all_rpis(phba->pport); 6244 lpfc_mbx_unreg_vpi(phba->pport); 6245 shost = lpfc_shost_from_vport(phba->pport); 6246 spin_lock_irq(shost->host_lock); 6247 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6248 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6249 spin_unlock_irq(shost->host_lock); 6250 } 6251 6252 /* Cleanup any outstanding ELS commands */ 6253 lpfc_els_flush_all_cmd(phba); 6254 6255 /* Unregister the physical port VFI */ 6256 rc = lpfc_issue_unreg_vfi(phba->pport); 6257 return rc; 6258 } 6259 6260 /** 6261 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6262 * @phba: Pointer to hba context object. 6263 * 6264 * This function issues synchronous unregister FCF mailbox command to HBA to 6265 * unregister the currently registered FCF record. The driver does not reset 6266 * the driver FCF usage state flags. 6267 * 6268 * Return 0 if successfully issued, none-zero otherwise. 6269 */ 6270 int 6271 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6272 { 6273 LPFC_MBOXQ_t *mbox; 6274 int rc; 6275 6276 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6277 if (!mbox) { 6278 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6279 "2551 UNREG_FCFI mbox allocation failed" 6280 "HBA state x%x\n", phba->pport->port_state); 6281 return -ENOMEM; 6282 } 6283 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6284 mbox->vport = phba->pport; 6285 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6286 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6287 6288 if (rc == MBX_NOT_FINISHED) { 6289 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6290 "2552 Unregister FCFI command failed rc x%x " 6291 "HBA state x%x\n", 6292 rc, phba->pport->port_state); 6293 return -EINVAL; 6294 } 6295 return 0; 6296 } 6297 6298 /** 6299 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6300 * @phba: Pointer to hba context object. 6301 * 6302 * This function unregisters the currently reigstered FCF. This function 6303 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6304 */ 6305 void 6306 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6307 { 6308 int rc; 6309 6310 /* Preparation for unregistering fcf */ 6311 rc = lpfc_unregister_fcf_prep(phba); 6312 if (rc) { 6313 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6314 "2748 Failed to prepare for unregistering " 6315 "HBA's FCF record: rc=%d\n", rc); 6316 return; 6317 } 6318 6319 /* Now, unregister FCF record and reset HBA FCF state */ 6320 rc = lpfc_sli4_unregister_fcf(phba); 6321 if (rc) 6322 return; 6323 /* Reset HBA FCF states after successful unregister FCF */ 6324 phba->fcf.fcf_flag = 0; 6325 phba->fcf.current_rec.flag = 0; 6326 6327 /* 6328 * If driver is not unloading, check if there is any other 6329 * FCF record that can be used for discovery. 6330 */ 6331 if ((phba->pport->load_flag & FC_UNLOADING) || 6332 (phba->link_state < LPFC_LINK_UP)) 6333 return; 6334 6335 /* This is considered as the initial FCF discovery scan */ 6336 spin_lock_irq(&phba->hbalock); 6337 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6338 spin_unlock_irq(&phba->hbalock); 6339 6340 /* Reset FCF roundrobin bmask for new discovery */ 6341 lpfc_sli4_clear_fcf_rr_bmask(phba); 6342 6343 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6344 6345 if (rc) { 6346 spin_lock_irq(&phba->hbalock); 6347 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6348 spin_unlock_irq(&phba->hbalock); 6349 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6350 "2553 lpfc_unregister_unused_fcf failed " 6351 "to read FCF record HBA state x%x\n", 6352 phba->pport->port_state); 6353 } 6354 } 6355 6356 /** 6357 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6358 * @phba: Pointer to hba context object. 6359 * 6360 * This function just unregisters the currently reigstered FCF. It does not 6361 * try to find another FCF for discovery. 6362 */ 6363 void 6364 lpfc_unregister_fcf(struct lpfc_hba *phba) 6365 { 6366 int rc; 6367 6368 /* Preparation for unregistering fcf */ 6369 rc = lpfc_unregister_fcf_prep(phba); 6370 if (rc) { 6371 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6372 "2749 Failed to prepare for unregistering " 6373 "HBA's FCF record: rc=%d\n", rc); 6374 return; 6375 } 6376 6377 /* Now, unregister FCF record and reset HBA FCF state */ 6378 rc = lpfc_sli4_unregister_fcf(phba); 6379 if (rc) 6380 return; 6381 /* Set proper HBA FCF states after successful unregister FCF */ 6382 spin_lock_irq(&phba->hbalock); 6383 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6384 spin_unlock_irq(&phba->hbalock); 6385 } 6386 6387 /** 6388 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6389 * @phba: Pointer to hba context object. 6390 * 6391 * This function check if there are any connected remote port for the FCF and 6392 * if all the devices are disconnected, this function unregister FCFI. 6393 * This function also tries to use another FCF for discovery. 6394 */ 6395 void 6396 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6397 { 6398 /* 6399 * If HBA is not running in FIP mode, if HBA does not support 6400 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6401 * registered, do nothing. 6402 */ 6403 spin_lock_irq(&phba->hbalock); 6404 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6405 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6406 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6407 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6408 (phba->pport->port_state == LPFC_FLOGI)) { 6409 spin_unlock_irq(&phba->hbalock); 6410 return; 6411 } 6412 spin_unlock_irq(&phba->hbalock); 6413 6414 if (lpfc_fcf_inuse(phba)) 6415 return; 6416 6417 lpfc_unregister_fcf_rescan(phba); 6418 } 6419 6420 /** 6421 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6422 * @phba: Pointer to hba context object. 6423 * @buff: Buffer containing the FCF connection table as in the config 6424 * region. 6425 * This function create driver data structure for the FCF connection 6426 * record table read from config region 23. 6427 */ 6428 static void 6429 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6430 uint8_t *buff) 6431 { 6432 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6433 struct lpfc_fcf_conn_hdr *conn_hdr; 6434 struct lpfc_fcf_conn_rec *conn_rec; 6435 uint32_t record_count; 6436 int i; 6437 6438 /* Free the current connect table */ 6439 list_for_each_entry_safe(conn_entry, next_conn_entry, 6440 &phba->fcf_conn_rec_list, list) { 6441 list_del_init(&conn_entry->list); 6442 kfree(conn_entry); 6443 } 6444 6445 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6446 record_count = conn_hdr->length * sizeof(uint32_t)/ 6447 sizeof(struct lpfc_fcf_conn_rec); 6448 6449 conn_rec = (struct lpfc_fcf_conn_rec *) 6450 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6451 6452 for (i = 0; i < record_count; i++) { 6453 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6454 continue; 6455 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6456 GFP_KERNEL); 6457 if (!conn_entry) { 6458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6459 "2566 Failed to allocate connection" 6460 " table entry\n"); 6461 return; 6462 } 6463 6464 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6465 sizeof(struct lpfc_fcf_conn_rec)); 6466 list_add_tail(&conn_entry->list, 6467 &phba->fcf_conn_rec_list); 6468 } 6469 6470 if (!list_empty(&phba->fcf_conn_rec_list)) { 6471 i = 0; 6472 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6473 list) { 6474 conn_rec = &conn_entry->conn_rec; 6475 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6476 "3345 FCF connection list rec[%02d]: " 6477 "flags:x%04x, vtag:x%04x, " 6478 "fabric_name:x%02x:%02x:%02x:%02x:" 6479 "%02x:%02x:%02x:%02x, " 6480 "switch_name:x%02x:%02x:%02x:%02x:" 6481 "%02x:%02x:%02x:%02x\n", i++, 6482 conn_rec->flags, conn_rec->vlan_tag, 6483 conn_rec->fabric_name[0], 6484 conn_rec->fabric_name[1], 6485 conn_rec->fabric_name[2], 6486 conn_rec->fabric_name[3], 6487 conn_rec->fabric_name[4], 6488 conn_rec->fabric_name[5], 6489 conn_rec->fabric_name[6], 6490 conn_rec->fabric_name[7], 6491 conn_rec->switch_name[0], 6492 conn_rec->switch_name[1], 6493 conn_rec->switch_name[2], 6494 conn_rec->switch_name[3], 6495 conn_rec->switch_name[4], 6496 conn_rec->switch_name[5], 6497 conn_rec->switch_name[6], 6498 conn_rec->switch_name[7]); 6499 } 6500 } 6501 } 6502 6503 /** 6504 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6505 * @phba: Pointer to hba context object. 6506 * @buff: Buffer containing the FCoE parameter data structure. 6507 * 6508 * This function update driver data structure with config 6509 * parameters read from config region 23. 6510 */ 6511 static void 6512 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6513 uint8_t *buff) 6514 { 6515 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6516 struct lpfc_fcoe_params *fcoe_param; 6517 6518 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6519 buff; 6520 fcoe_param = (struct lpfc_fcoe_params *) 6521 (buff + sizeof(struct lpfc_fip_param_hdr)); 6522 6523 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6524 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6525 return; 6526 6527 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6528 phba->valid_vlan = 1; 6529 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6530 0xFFF; 6531 } 6532 6533 phba->fc_map[0] = fcoe_param->fc_map[0]; 6534 phba->fc_map[1] = fcoe_param->fc_map[1]; 6535 phba->fc_map[2] = fcoe_param->fc_map[2]; 6536 return; 6537 } 6538 6539 /** 6540 * lpfc_get_rec_conf23 - Get a record type in config region data. 6541 * @buff: Buffer containing config region 23 data. 6542 * @size: Size of the data buffer. 6543 * @rec_type: Record type to be searched. 6544 * 6545 * This function searches config region data to find the beginning 6546 * of the record specified by record_type. If record found, this 6547 * function return pointer to the record else return NULL. 6548 */ 6549 static uint8_t * 6550 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6551 { 6552 uint32_t offset = 0, rec_length; 6553 6554 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6555 (size < sizeof(uint32_t))) 6556 return NULL; 6557 6558 rec_length = buff[offset + 1]; 6559 6560 /* 6561 * One TLV record has one word header and number of data words 6562 * specified in the rec_length field of the record header. 6563 */ 6564 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6565 <= size) { 6566 if (buff[offset] == rec_type) 6567 return &buff[offset]; 6568 6569 if (buff[offset] == LPFC_REGION23_LAST_REC) 6570 return NULL; 6571 6572 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6573 rec_length = buff[offset + 1]; 6574 } 6575 return NULL; 6576 } 6577 6578 /** 6579 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6580 * @phba: Pointer to lpfc_hba data structure. 6581 * @buff: Buffer containing config region 23 data. 6582 * @size: Size of the data buffer. 6583 * 6584 * This function parses the FCoE config parameters in config region 23 and 6585 * populate driver data structure with the parameters. 6586 */ 6587 void 6588 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6589 uint8_t *buff, 6590 uint32_t size) 6591 { 6592 uint32_t offset = 0; 6593 uint8_t *rec_ptr; 6594 6595 /* 6596 * If data size is less than 2 words signature and version cannot be 6597 * verified. 6598 */ 6599 if (size < 2*sizeof(uint32_t)) 6600 return; 6601 6602 /* Check the region signature first */ 6603 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6605 "2567 Config region 23 has bad signature\n"); 6606 return; 6607 } 6608 6609 offset += 4; 6610 6611 /* Check the data structure version */ 6612 if (buff[offset] != LPFC_REGION23_VERSION) { 6613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6614 "2568 Config region 23 has bad version\n"); 6615 return; 6616 } 6617 offset += 4; 6618 6619 /* Read FCoE param record */ 6620 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6621 size - offset, FCOE_PARAM_TYPE); 6622 if (rec_ptr) 6623 lpfc_read_fcoe_param(phba, rec_ptr); 6624 6625 /* Read FCF connection table */ 6626 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6627 size - offset, FCOE_CONN_TBL_TYPE); 6628 if (rec_ptr) 6629 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6630 6631 } 6632