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 (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 322 323 return fcf_inuse; 324 } 325 326 /** 327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 328 * @phba: Pointer to hba context object. 329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 330 * @nlp_did: remote node identifer with devloss timeout. 331 * 332 * This function is called from the worker thread after invoking devloss 333 * timeout handler and releasing the reference count for the ndlp with 334 * which the devloss timeout was handled for SLI4 host. For the devloss 335 * timeout of the last remote node which had been in use of FCF, when this 336 * routine is invoked, it shall be guaranteed that none of the remote are 337 * in-use of FCF. When devloss timeout to the last remote using the FCF, 338 * if the FIP engine is neither in FCF table scan process nor roundrobin 339 * failover process, the in-use FCF shall be unregistered. If the FIP 340 * engine is in FCF discovery process, the devloss timeout state shall 341 * be set for either the FCF table scan process or roundrobin failover 342 * process to unregister the in-use FCF. 343 **/ 344 static void 345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 346 uint32_t nlp_did) 347 { 348 /* If devloss timeout happened to a remote node when FCF had no 349 * longer been in-use, do nothing. 350 */ 351 if (!fcf_inuse) 352 return; 353 354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 355 spin_lock_irq(&phba->hbalock); 356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 357 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 358 spin_unlock_irq(&phba->hbalock); 359 return; 360 } 361 phba->hba_flag |= HBA_DEVLOSS_TMO; 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2847 Last remote node (x%x) using " 364 "FCF devloss tmo\n", nlp_did); 365 } 366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 367 spin_unlock_irq(&phba->hbalock); 368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 369 "2868 Devloss tmo to FCF rediscovery " 370 "in progress\n"); 371 return; 372 } 373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 374 spin_unlock_irq(&phba->hbalock); 375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 376 "2869 Devloss tmo to idle FIP engine, " 377 "unreg in-use FCF and rescan.\n"); 378 /* Unregister in-use FCF and rescan */ 379 lpfc_unregister_fcf_rescan(phba); 380 return; 381 } 382 spin_unlock_irq(&phba->hbalock); 383 if (phba->hba_flag & FCF_TS_INPROG) 384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 385 "2870 FCF table scan in progress\n"); 386 if (phba->hba_flag & FCF_RR_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2871 FLOGI roundrobin FCF failover " 389 "in progress\n"); 390 } 391 lpfc_unregister_unused_fcf(phba); 392 } 393 394 /** 395 * lpfc_alloc_fast_evt - Allocates data structure for posting event 396 * @phba: Pointer to hba context object. 397 * 398 * This function is called from the functions which need to post 399 * events from interrupt context. This function allocates data 400 * structure required for posting event. It also keeps track of 401 * number of events pending and prevent event storm when there are 402 * too many events. 403 **/ 404 struct lpfc_fast_path_event * 405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 406 struct lpfc_fast_path_event *ret; 407 408 /* If there are lot of fast event do not exhaust memory due to this */ 409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 410 return NULL; 411 412 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 413 GFP_ATOMIC); 414 if (ret) { 415 atomic_inc(&phba->fast_event_count); 416 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 418 } 419 return ret; 420 } 421 422 /** 423 * lpfc_free_fast_evt - Frees event data structure 424 * @phba: Pointer to hba context object. 425 * @evt: Event object which need to be freed. 426 * 427 * This function frees the data structure required for posting 428 * events. 429 **/ 430 void 431 lpfc_free_fast_evt(struct lpfc_hba *phba, 432 struct lpfc_fast_path_event *evt) { 433 434 atomic_dec(&phba->fast_event_count); 435 kfree(evt); 436 } 437 438 /** 439 * lpfc_send_fastpath_evt - Posts events generated from fast path 440 * @phba: Pointer to hba context object. 441 * @evtp: Event data structure. 442 * 443 * This function is called from worker thread, when the interrupt 444 * context need to post an event. This function posts the event 445 * to fc transport netlink interface. 446 **/ 447 static void 448 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 449 struct lpfc_work_evt *evtp) 450 { 451 unsigned long evt_category, evt_sub_category; 452 struct lpfc_fast_path_event *fast_evt_data; 453 char *evt_data; 454 uint32_t evt_data_size; 455 struct Scsi_Host *shost; 456 457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 458 work_evt); 459 460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 461 evt_sub_category = (unsigned long) fast_evt_data->un. 462 fabric_evt.subcategory; 463 shost = lpfc_shost_from_vport(fast_evt_data->vport); 464 if (evt_category == FC_REG_FABRIC_EVENT) { 465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 466 evt_data = (char *) &fast_evt_data->un.read_check_error; 467 evt_data_size = sizeof(fast_evt_data->un. 468 read_check_error); 469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 471 evt_data = (char *) &fast_evt_data->un.fabric_evt; 472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 473 } else { 474 lpfc_free_fast_evt(phba, fast_evt_data); 475 return; 476 } 477 } else if (evt_category == FC_REG_SCSI_EVENT) { 478 switch (evt_sub_category) { 479 case LPFC_EVENT_QFULL: 480 case LPFC_EVENT_DEVBSY: 481 evt_data = (char *) &fast_evt_data->un.scsi_evt; 482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 483 break; 484 case LPFC_EVENT_CHECK_COND: 485 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 check_cond_evt); 488 break; 489 case LPFC_EVENT_VARQUEDEPTH: 490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 491 evt_data_size = sizeof(fast_evt_data->un. 492 queue_depth_evt); 493 break; 494 default: 495 lpfc_free_fast_evt(phba, fast_evt_data); 496 return; 497 } 498 } else { 499 lpfc_free_fast_evt(phba, fast_evt_data); 500 return; 501 } 502 503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 504 fc_host_post_vendor_event(shost, 505 fc_get_event_number(), 506 evt_data_size, 507 evt_data, 508 LPFC_NL_VENDOR_ID); 509 510 lpfc_free_fast_evt(phba, fast_evt_data); 511 return; 512 } 513 514 static void 515 lpfc_work_list_done(struct lpfc_hba *phba) 516 { 517 struct lpfc_work_evt *evtp = NULL; 518 struct lpfc_nodelist *ndlp; 519 int free_evt; 520 int fcf_inuse; 521 uint32_t nlp_did; 522 523 spin_lock_irq(&phba->hbalock); 524 while (!list_empty(&phba->work_list)) { 525 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 526 evt_listp); 527 spin_unlock_irq(&phba->hbalock); 528 free_evt = 1; 529 switch (evtp->evt) { 530 case LPFC_EVT_ELS_RETRY: 531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 532 lpfc_els_retry_delay_handler(ndlp); 533 free_evt = 0; /* evt is part of ndlp */ 534 /* decrement the node reference count held 535 * for this queued work 536 */ 537 lpfc_nlp_put(ndlp); 538 break; 539 case LPFC_EVT_DEV_LOSS: 540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 542 free_evt = 0; 543 /* decrement the node reference count held for 544 * this queued work 545 */ 546 nlp_did = ndlp->nlp_DID; 547 lpfc_nlp_put(ndlp); 548 if (phba->sli_rev == LPFC_SLI_REV4) 549 lpfc_sli4_post_dev_loss_tmo_handler(phba, 550 fcf_inuse, 551 nlp_did); 552 break; 553 case LPFC_EVT_ONLINE: 554 if (phba->link_state < LPFC_LINK_DOWN) 555 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 556 else 557 *(int *) (evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE_PREP: 561 if (phba->link_state >= LPFC_LINK_DOWN) 562 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 563 *(int *)(evtp->evt_arg1) = 0; 564 complete((struct completion *)(evtp->evt_arg2)); 565 break; 566 case LPFC_EVT_OFFLINE: 567 lpfc_offline(phba); 568 lpfc_sli_brdrestart(phba); 569 *(int *)(evtp->evt_arg1) = 570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 571 lpfc_unblock_mgmt_io(phba); 572 complete((struct completion *)(evtp->evt_arg2)); 573 break; 574 case LPFC_EVT_WARM_START: 575 lpfc_offline(phba); 576 lpfc_reset_barrier(phba); 577 lpfc_sli_brdreset(phba); 578 lpfc_hba_down_post(phba); 579 *(int *)(evtp->evt_arg1) = 580 lpfc_sli_brdready(phba, HS_MBRDY); 581 lpfc_unblock_mgmt_io(phba); 582 complete((struct completion *)(evtp->evt_arg2)); 583 break; 584 case LPFC_EVT_KILL: 585 lpfc_offline(phba); 586 *(int *)(evtp->evt_arg1) 587 = (phba->pport->stopped) 588 ? 0 : lpfc_sli_brdkill(phba); 589 lpfc_unblock_mgmt_io(phba); 590 complete((struct completion *)(evtp->evt_arg2)); 591 break; 592 case LPFC_EVT_FASTPATH_MGMT_EVT: 593 lpfc_send_fastpath_evt(phba, evtp); 594 free_evt = 0; 595 break; 596 case LPFC_EVT_RESET_HBA: 597 if (!(phba->pport->load_flag & FC_UNLOADING)) 598 lpfc_reset_hba(phba); 599 break; 600 } 601 if (free_evt) 602 kfree(evtp); 603 spin_lock_irq(&phba->hbalock); 604 } 605 spin_unlock_irq(&phba->hbalock); 606 607 } 608 609 static void 610 lpfc_work_done(struct lpfc_hba *phba) 611 { 612 struct lpfc_sli_ring *pring; 613 uint32_t ha_copy, status, control, work_port_events; 614 struct lpfc_vport **vports; 615 struct lpfc_vport *vport; 616 int i; 617 618 spin_lock_irq(&phba->hbalock); 619 ha_copy = phba->work_ha; 620 phba->work_ha = 0; 621 spin_unlock_irq(&phba->hbalock); 622 623 /* First, try to post the next mailbox command to SLI4 device */ 624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 625 lpfc_sli4_post_async_mbox(phba); 626 627 if (ha_copy & HA_ERATT) 628 /* Handle the error attention event */ 629 lpfc_handle_eratt(phba); 630 631 if (ha_copy & HA_MBATT) 632 lpfc_sli_handle_mb_event(phba); 633 634 if (ha_copy & HA_LATT) 635 lpfc_handle_latt(phba); 636 637 /* Process SLI4 events */ 638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 639 if (phba->hba_flag & HBA_RRQ_ACTIVE) 640 lpfc_handle_rrq_active(phba); 641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 642 lpfc_sli4_fcp_xri_abort_event_proc(phba); 643 if (phba->hba_flag & NVME_XRI_ABORT_EVENT) 644 lpfc_sli4_nvme_xri_abort_event_proc(phba); 645 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 646 lpfc_sli4_els_xri_abort_event_proc(phba); 647 if (phba->hba_flag & ASYNC_EVENT) 648 lpfc_sli4_async_event_proc(phba); 649 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 650 spin_lock_irq(&phba->hbalock); 651 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 652 spin_unlock_irq(&phba->hbalock); 653 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 654 } 655 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 656 lpfc_sli4_fcf_redisc_event_proc(phba); 657 } 658 659 vports = lpfc_create_vport_work_array(phba); 660 if (vports != NULL) 661 for (i = 0; i <= phba->max_vports; i++) { 662 /* 663 * We could have no vports in array if unloading, so if 664 * this happens then just use the pport 665 */ 666 if (vports[i] == NULL && i == 0) 667 vport = phba->pport; 668 else 669 vport = vports[i]; 670 if (vport == NULL) 671 break; 672 spin_lock_irq(&vport->work_port_lock); 673 work_port_events = vport->work_port_events; 674 vport->work_port_events &= ~work_port_events; 675 spin_unlock_irq(&vport->work_port_lock); 676 if (work_port_events & WORKER_DISC_TMO) 677 lpfc_disc_timeout_handler(vport); 678 if (work_port_events & WORKER_ELS_TMO) 679 lpfc_els_timeout_handler(vport); 680 if (work_port_events & WORKER_HB_TMO) 681 lpfc_hb_timeout_handler(phba); 682 if (work_port_events & WORKER_MBOX_TMO) 683 lpfc_mbox_timeout_handler(phba); 684 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 685 lpfc_unblock_fabric_iocbs(phba); 686 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 687 lpfc_ramp_down_queue_handler(phba); 688 if (work_port_events & WORKER_DELAYED_DISC_TMO) 689 lpfc_delayed_disc_timeout_handler(vport); 690 } 691 lpfc_destroy_vport_work_array(phba, vports); 692 693 pring = lpfc_phba_elsring(phba); 694 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 695 status >>= (4*LPFC_ELS_RING); 696 if ((status & HA_RXMASK) || 697 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 698 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 699 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 700 pring->flag |= LPFC_DEFERRED_RING_EVENT; 701 /* Set the lpfc data pending flag */ 702 set_bit(LPFC_DATA_READY, &phba->data_flags); 703 } else { 704 if (phba->link_state >= LPFC_LINK_UP) { 705 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 706 lpfc_sli_handle_slow_ring_event(phba, pring, 707 (status & 708 HA_RXMASK)); 709 } 710 } 711 if ((phba->sli_rev == LPFC_SLI_REV4) && 712 (!list_empty(&pring->txq))) 713 lpfc_drain_txq(phba); 714 /* 715 * Turn on Ring interrupts 716 */ 717 if (phba->sli_rev <= LPFC_SLI_REV3) { 718 spin_lock_irq(&phba->hbalock); 719 control = readl(phba->HCregaddr); 720 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 721 lpfc_debugfs_slow_ring_trc(phba, 722 "WRK Enable ring: cntl:x%x hacopy:x%x", 723 control, ha_copy, 0); 724 725 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 726 writel(control, phba->HCregaddr); 727 readl(phba->HCregaddr); /* flush */ 728 } else { 729 lpfc_debugfs_slow_ring_trc(phba, 730 "WRK Ring ok: cntl:x%x hacopy:x%x", 731 control, ha_copy, 0); 732 } 733 spin_unlock_irq(&phba->hbalock); 734 } 735 } 736 lpfc_work_list_done(phba); 737 } 738 739 int 740 lpfc_do_work(void *p) 741 { 742 struct lpfc_hba *phba = p; 743 int rc; 744 745 set_user_nice(current, MIN_NICE); 746 current->flags |= PF_NOFREEZE; 747 phba->data_flags = 0; 748 749 while (!kthread_should_stop()) { 750 /* wait and check worker queue activities */ 751 rc = wait_event_interruptible(phba->work_waitq, 752 (test_and_clear_bit(LPFC_DATA_READY, 753 &phba->data_flags) 754 || kthread_should_stop())); 755 /* Signal wakeup shall terminate the worker thread */ 756 if (rc) { 757 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 758 "0433 Wakeup on signal: rc=x%x\n", rc); 759 break; 760 } 761 762 /* Attend pending lpfc data processing */ 763 lpfc_work_done(phba); 764 } 765 phba->worker_thread = NULL; 766 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 767 "0432 Worker thread stopped.\n"); 768 return 0; 769 } 770 771 /* 772 * This is only called to handle FC worker events. Since this a rare 773 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 774 * embedding it in the IOCB. 775 */ 776 int 777 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 778 uint32_t evt) 779 { 780 struct lpfc_work_evt *evtp; 781 unsigned long flags; 782 783 /* 784 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 785 * be queued to worker thread for processing 786 */ 787 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 788 if (!evtp) 789 return 0; 790 791 evtp->evt_arg1 = arg1; 792 evtp->evt_arg2 = arg2; 793 evtp->evt = evt; 794 795 spin_lock_irqsave(&phba->hbalock, flags); 796 list_add_tail(&evtp->evt_listp, &phba->work_list); 797 spin_unlock_irqrestore(&phba->hbalock, flags); 798 799 lpfc_worker_wake_up(phba); 800 801 return 1; 802 } 803 804 void 805 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 806 { 807 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 808 struct lpfc_hba *phba = vport->phba; 809 struct lpfc_nodelist *ndlp, *next_ndlp; 810 811 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 812 if (!NLP_CHK_NODE_ACT(ndlp)) 813 continue; 814 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 815 continue; 816 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 817 ((vport->port_type == LPFC_NPIV_PORT) && 818 (ndlp->nlp_DID == NameServer_DID))) 819 lpfc_unreg_rpi(vport, ndlp); 820 821 /* Leave Fabric nodes alone on link down */ 822 if ((phba->sli_rev < LPFC_SLI_REV4) && 823 (!remove && ndlp->nlp_type & NLP_FABRIC)) 824 continue; 825 lpfc_disc_state_machine(vport, ndlp, NULL, 826 remove 827 ? NLP_EVT_DEVICE_RM 828 : NLP_EVT_DEVICE_RECOVERY); 829 } 830 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 831 if (phba->sli_rev == LPFC_SLI_REV4) 832 lpfc_sli4_unreg_all_rpis(vport); 833 lpfc_mbx_unreg_vpi(vport); 834 spin_lock_irq(shost->host_lock); 835 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 836 spin_unlock_irq(shost->host_lock); 837 } 838 } 839 840 void 841 lpfc_port_link_failure(struct lpfc_vport *vport) 842 { 843 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 844 845 /* Cleanup any outstanding received buffers */ 846 lpfc_cleanup_rcv_buffers(vport); 847 848 /* Cleanup any outstanding RSCN activity */ 849 lpfc_els_flush_rscn(vport); 850 851 /* Cleanup any outstanding ELS commands */ 852 lpfc_els_flush_cmd(vport); 853 854 lpfc_cleanup_rpis(vport, 0); 855 856 /* Turn off discovery timer if its running */ 857 lpfc_can_disctmo(vport); 858 } 859 860 void 861 lpfc_linkdown_port(struct lpfc_vport *vport) 862 { 863 struct lpfc_hba *phba = vport->phba; 864 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 865 866 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 867 fc_host_post_event(shost, fc_get_event_number(), 868 FCH_EVT_LINKDOWN, 0); 869 870 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 871 "Link Down: state:x%x rtry:x%x flg:x%x", 872 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 873 874 lpfc_port_link_failure(vport); 875 876 /* Stop delayed Nport discovery */ 877 spin_lock_irq(shost->host_lock); 878 vport->fc_flag &= ~FC_DISC_DELAYED; 879 spin_unlock_irq(shost->host_lock); 880 del_timer_sync(&vport->delayed_disc_tmo); 881 } 882 883 int 884 lpfc_linkdown(struct lpfc_hba *phba) 885 { 886 struct lpfc_vport *vport = phba->pport; 887 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 888 struct lpfc_vport **vports; 889 LPFC_MBOXQ_t *mb; 890 int i; 891 892 if (phba->link_state == LPFC_LINK_DOWN) 893 return 0; 894 895 /* Block all SCSI stack I/Os */ 896 lpfc_scsi_dev_block(phba); 897 898 spin_lock_irq(&phba->hbalock); 899 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 900 spin_unlock_irq(&phba->hbalock); 901 if (phba->link_state > LPFC_LINK_DOWN) { 902 phba->link_state = LPFC_LINK_DOWN; 903 spin_lock_irq(shost->host_lock); 904 phba->pport->fc_flag &= ~FC_LBIT; 905 spin_unlock_irq(shost->host_lock); 906 } 907 vports = lpfc_create_vport_work_array(phba); 908 if (vports != NULL) { 909 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 910 /* Issue a LINK DOWN event to all nodes */ 911 lpfc_linkdown_port(vports[i]); 912 913 vports[i]->fc_myDID = 0; 914 915 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 916 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 917 if (phba->nvmet_support) 918 lpfc_nvmet_update_targetport(phba); 919 else 920 lpfc_nvme_update_localport(vports[i]); 921 } 922 } 923 } 924 lpfc_destroy_vport_work_array(phba, vports); 925 /* Clean up any firmware default rpi's */ 926 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 927 if (mb) { 928 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 929 mb->vport = vport; 930 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 931 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 932 == MBX_NOT_FINISHED) { 933 mempool_free(mb, phba->mbox_mem_pool); 934 } 935 } 936 937 /* Setup myDID for link up if we are in pt2pt mode */ 938 if (phba->pport->fc_flag & FC_PT2PT) { 939 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 940 if (mb) { 941 lpfc_config_link(phba, mb); 942 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 943 mb->vport = vport; 944 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 945 == MBX_NOT_FINISHED) { 946 mempool_free(mb, phba->mbox_mem_pool); 947 } 948 } 949 spin_lock_irq(shost->host_lock); 950 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 951 spin_unlock_irq(shost->host_lock); 952 } 953 return 0; 954 } 955 956 static void 957 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 958 { 959 struct lpfc_nodelist *ndlp; 960 961 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 962 if (!NLP_CHK_NODE_ACT(ndlp)) 963 continue; 964 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 965 continue; 966 if (ndlp->nlp_type & NLP_FABRIC) { 967 /* On Linkup its safe to clean up the ndlp 968 * from Fabric connections. 969 */ 970 if (ndlp->nlp_DID != Fabric_DID) 971 lpfc_unreg_rpi(vport, ndlp); 972 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 973 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 974 /* Fail outstanding IO now since device is 975 * marked for PLOGI. 976 */ 977 lpfc_unreg_rpi(vport, ndlp); 978 } 979 } 980 } 981 982 static void 983 lpfc_linkup_port(struct lpfc_vport *vport) 984 { 985 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 986 struct lpfc_hba *phba = vport->phba; 987 988 if ((vport->load_flag & FC_UNLOADING) != 0) 989 return; 990 991 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 992 "Link Up: top:x%x speed:x%x flg:x%x", 993 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 994 995 /* If NPIV is not enabled, only bring the physical port up */ 996 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 997 (vport != phba->pport)) 998 return; 999 1000 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1001 fc_host_post_event(shost, fc_get_event_number(), 1002 FCH_EVT_LINKUP, 0); 1003 1004 spin_lock_irq(shost->host_lock); 1005 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1006 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1007 vport->fc_flag |= FC_NDISC_ACTIVE; 1008 vport->fc_ns_retry = 0; 1009 spin_unlock_irq(shost->host_lock); 1010 1011 if (vport->fc_flag & FC_LBIT) 1012 lpfc_linkup_cleanup_nodes(vport); 1013 1014 } 1015 1016 static int 1017 lpfc_linkup(struct lpfc_hba *phba) 1018 { 1019 struct lpfc_vport **vports; 1020 int i; 1021 1022 phba->link_state = LPFC_LINK_UP; 1023 1024 /* Unblock fabric iocbs if they are blocked */ 1025 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1026 del_timer_sync(&phba->fabric_block_timer); 1027 1028 vports = lpfc_create_vport_work_array(phba); 1029 if (vports != NULL) 1030 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1031 lpfc_linkup_port(vports[i]); 1032 lpfc_destroy_vport_work_array(phba, vports); 1033 1034 return 0; 1035 } 1036 1037 /* 1038 * This routine handles processing a CLEAR_LA mailbox 1039 * command upon completion. It is setup in the LPFC_MBOXQ 1040 * as the completion routine when the command is 1041 * handed off to the SLI layer. SLI3 only. 1042 */ 1043 static void 1044 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1045 { 1046 struct lpfc_vport *vport = pmb->vport; 1047 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1048 struct lpfc_sli *psli = &phba->sli; 1049 MAILBOX_t *mb = &pmb->u.mb; 1050 uint32_t control; 1051 1052 /* Since we don't do discovery right now, turn these off here */ 1053 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1054 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1055 1056 /* Check for error */ 1057 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1058 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1059 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1060 "0320 CLEAR_LA mbxStatus error x%x hba " 1061 "state x%x\n", 1062 mb->mbxStatus, vport->port_state); 1063 phba->link_state = LPFC_HBA_ERROR; 1064 goto out; 1065 } 1066 1067 if (vport->port_type == LPFC_PHYSICAL_PORT) 1068 phba->link_state = LPFC_HBA_READY; 1069 1070 spin_lock_irq(&phba->hbalock); 1071 psli->sli_flag |= LPFC_PROCESS_LA; 1072 control = readl(phba->HCregaddr); 1073 control |= HC_LAINT_ENA; 1074 writel(control, phba->HCregaddr); 1075 readl(phba->HCregaddr); /* flush */ 1076 spin_unlock_irq(&phba->hbalock); 1077 mempool_free(pmb, phba->mbox_mem_pool); 1078 return; 1079 1080 out: 1081 /* Device Discovery completes */ 1082 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1083 "0225 Device Discovery completes\n"); 1084 mempool_free(pmb, phba->mbox_mem_pool); 1085 1086 spin_lock_irq(shost->host_lock); 1087 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1088 spin_unlock_irq(shost->host_lock); 1089 1090 lpfc_can_disctmo(vport); 1091 1092 /* turn on Link Attention interrupts */ 1093 1094 spin_lock_irq(&phba->hbalock); 1095 psli->sli_flag |= LPFC_PROCESS_LA; 1096 control = readl(phba->HCregaddr); 1097 control |= HC_LAINT_ENA; 1098 writel(control, phba->HCregaddr); 1099 readl(phba->HCregaddr); /* flush */ 1100 spin_unlock_irq(&phba->hbalock); 1101 1102 return; 1103 } 1104 1105 1106 void 1107 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1108 { 1109 struct lpfc_vport *vport = pmb->vport; 1110 1111 if (pmb->u.mb.mbxStatus) 1112 goto out; 1113 1114 mempool_free(pmb, phba->mbox_mem_pool); 1115 1116 /* don't perform discovery for SLI4 loopback diagnostic test */ 1117 if ((phba->sli_rev == LPFC_SLI_REV4) && 1118 !(phba->hba_flag & HBA_FCOE_MODE) && 1119 (phba->link_flag & LS_LOOPBACK_MODE)) 1120 return; 1121 1122 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1123 vport->fc_flag & FC_PUBLIC_LOOP && 1124 !(vport->fc_flag & FC_LBIT)) { 1125 /* Need to wait for FAN - use discovery timer 1126 * for timeout. port_state is identically 1127 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1128 */ 1129 lpfc_set_disctmo(vport); 1130 return; 1131 } 1132 1133 /* Start discovery by sending a FLOGI. port_state is identically 1134 * LPFC_FLOGI while waiting for FLOGI cmpl 1135 */ 1136 if (vport->port_state != LPFC_FLOGI) 1137 lpfc_initial_flogi(vport); 1138 else if (vport->fc_flag & FC_PT2PT) 1139 lpfc_disc_start(vport); 1140 return; 1141 1142 out: 1143 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1144 "0306 CONFIG_LINK mbxStatus error x%x " 1145 "HBA state x%x\n", 1146 pmb->u.mb.mbxStatus, vport->port_state); 1147 mempool_free(pmb, phba->mbox_mem_pool); 1148 1149 lpfc_linkdown(phba); 1150 1151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1152 "0200 CONFIG_LINK bad hba state x%x\n", 1153 vport->port_state); 1154 1155 lpfc_issue_clear_la(phba, vport); 1156 return; 1157 } 1158 1159 /** 1160 * lpfc_sli4_clear_fcf_rr_bmask 1161 * @phba pointer to the struct lpfc_hba for this port. 1162 * This fucnction resets the round robin bit mask and clears the 1163 * fcf priority list. The list deletions are done while holding the 1164 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1165 * from the lpfc_fcf_pri record. 1166 **/ 1167 void 1168 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1169 { 1170 struct lpfc_fcf_pri *fcf_pri; 1171 struct lpfc_fcf_pri *next_fcf_pri; 1172 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1173 spin_lock_irq(&phba->hbalock); 1174 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1175 &phba->fcf.fcf_pri_list, list) { 1176 list_del_init(&fcf_pri->list); 1177 fcf_pri->fcf_rec.flag = 0; 1178 } 1179 spin_unlock_irq(&phba->hbalock); 1180 } 1181 static void 1182 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1183 { 1184 struct lpfc_vport *vport = mboxq->vport; 1185 1186 if (mboxq->u.mb.mbxStatus) { 1187 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1188 "2017 REG_FCFI mbxStatus error x%x " 1189 "HBA state x%x\n", 1190 mboxq->u.mb.mbxStatus, vport->port_state); 1191 goto fail_out; 1192 } 1193 1194 /* Start FCoE discovery by sending a FLOGI. */ 1195 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1196 /* Set the FCFI registered flag */ 1197 spin_lock_irq(&phba->hbalock); 1198 phba->fcf.fcf_flag |= FCF_REGISTERED; 1199 spin_unlock_irq(&phba->hbalock); 1200 1201 /* If there is a pending FCoE event, restart FCF table scan. */ 1202 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1203 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1204 goto fail_out; 1205 1206 /* Mark successful completion of FCF table scan */ 1207 spin_lock_irq(&phba->hbalock); 1208 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1209 phba->hba_flag &= ~FCF_TS_INPROG; 1210 if (vport->port_state != LPFC_FLOGI) { 1211 phba->hba_flag |= FCF_RR_INPROG; 1212 spin_unlock_irq(&phba->hbalock); 1213 lpfc_issue_init_vfi(vport); 1214 goto out; 1215 } 1216 spin_unlock_irq(&phba->hbalock); 1217 goto out; 1218 1219 fail_out: 1220 spin_lock_irq(&phba->hbalock); 1221 phba->hba_flag &= ~FCF_RR_INPROG; 1222 spin_unlock_irq(&phba->hbalock); 1223 out: 1224 mempool_free(mboxq, phba->mbox_mem_pool); 1225 } 1226 1227 /** 1228 * lpfc_fab_name_match - Check if the fcf fabric name match. 1229 * @fab_name: pointer to fabric name. 1230 * @new_fcf_record: pointer to fcf record. 1231 * 1232 * This routine compare the fcf record's fabric name with provided 1233 * fabric name. If the fabric name are identical this function 1234 * returns 1 else return 0. 1235 **/ 1236 static uint32_t 1237 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1238 { 1239 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1240 return 0; 1241 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1242 return 0; 1243 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1244 return 0; 1245 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1246 return 0; 1247 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1248 return 0; 1249 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1250 return 0; 1251 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1252 return 0; 1253 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1254 return 0; 1255 return 1; 1256 } 1257 1258 /** 1259 * lpfc_sw_name_match - Check if the fcf switch name match. 1260 * @fab_name: pointer to fabric name. 1261 * @new_fcf_record: pointer to fcf record. 1262 * 1263 * This routine compare the fcf record's switch name with provided 1264 * switch name. If the switch name are identical this function 1265 * returns 1 else return 0. 1266 **/ 1267 static uint32_t 1268 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1269 { 1270 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1271 return 0; 1272 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1273 return 0; 1274 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1275 return 0; 1276 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1277 return 0; 1278 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1279 return 0; 1280 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1281 return 0; 1282 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1283 return 0; 1284 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1285 return 0; 1286 return 1; 1287 } 1288 1289 /** 1290 * lpfc_mac_addr_match - Check if the fcf mac address match. 1291 * @mac_addr: pointer to mac address. 1292 * @new_fcf_record: pointer to fcf record. 1293 * 1294 * This routine compare the fcf record's mac address with HBA's 1295 * FCF mac address. If the mac addresses are identical this function 1296 * returns 1 else return 0. 1297 **/ 1298 static uint32_t 1299 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1300 { 1301 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1302 return 0; 1303 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1304 return 0; 1305 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1306 return 0; 1307 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1308 return 0; 1309 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1310 return 0; 1311 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1312 return 0; 1313 return 1; 1314 } 1315 1316 static bool 1317 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1318 { 1319 return (curr_vlan_id == new_vlan_id); 1320 } 1321 1322 /** 1323 * lpfc_update_fcf_record - Update driver fcf record 1324 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1325 * @phba: pointer to lpfc hba data structure. 1326 * @fcf_index: Index for the lpfc_fcf_record. 1327 * @new_fcf_record: pointer to hba fcf record. 1328 * 1329 * This routine updates the driver FCF priority record from the new HBA FCF 1330 * record. This routine is called with the host lock held. 1331 **/ 1332 static void 1333 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1334 struct fcf_record *new_fcf_record 1335 ) 1336 { 1337 struct lpfc_fcf_pri *fcf_pri; 1338 1339 lockdep_assert_held(&phba->hbalock); 1340 1341 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1342 fcf_pri->fcf_rec.fcf_index = fcf_index; 1343 /* FCF record priority */ 1344 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1345 1346 } 1347 1348 /** 1349 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1350 * @fcf: pointer to driver fcf record. 1351 * @new_fcf_record: pointer to fcf record. 1352 * 1353 * This routine copies the FCF information from the FCF 1354 * record to lpfc_hba data structure. 1355 **/ 1356 static void 1357 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1358 struct fcf_record *new_fcf_record) 1359 { 1360 /* Fabric name */ 1361 fcf_rec->fabric_name[0] = 1362 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1363 fcf_rec->fabric_name[1] = 1364 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1365 fcf_rec->fabric_name[2] = 1366 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1367 fcf_rec->fabric_name[3] = 1368 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1369 fcf_rec->fabric_name[4] = 1370 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1371 fcf_rec->fabric_name[5] = 1372 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1373 fcf_rec->fabric_name[6] = 1374 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1375 fcf_rec->fabric_name[7] = 1376 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1377 /* Mac address */ 1378 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1379 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1380 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1381 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1382 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1383 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1384 /* FCF record index */ 1385 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1386 /* FCF record priority */ 1387 fcf_rec->priority = new_fcf_record->fip_priority; 1388 /* Switch name */ 1389 fcf_rec->switch_name[0] = 1390 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1391 fcf_rec->switch_name[1] = 1392 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1393 fcf_rec->switch_name[2] = 1394 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1395 fcf_rec->switch_name[3] = 1396 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1397 fcf_rec->switch_name[4] = 1398 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1399 fcf_rec->switch_name[5] = 1400 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1401 fcf_rec->switch_name[6] = 1402 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1403 fcf_rec->switch_name[7] = 1404 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1405 } 1406 1407 /** 1408 * lpfc_update_fcf_record - Update driver fcf record 1409 * @phba: pointer to lpfc hba data structure. 1410 * @fcf_rec: pointer to driver fcf record. 1411 * @new_fcf_record: pointer to hba fcf record. 1412 * @addr_mode: address mode to be set to the driver fcf record. 1413 * @vlan_id: vlan tag to be set to the driver fcf record. 1414 * @flag: flag bits to be set to the driver fcf record. 1415 * 1416 * This routine updates the driver FCF record from the new HBA FCF record 1417 * together with the address mode, vlan_id, and other informations. This 1418 * routine is called with the host lock held. 1419 **/ 1420 static void 1421 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1422 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1423 uint16_t vlan_id, uint32_t flag) 1424 { 1425 lockdep_assert_held(&phba->hbalock); 1426 1427 /* Copy the fields from the HBA's FCF record */ 1428 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1429 /* Update other fields of driver FCF record */ 1430 fcf_rec->addr_mode = addr_mode; 1431 fcf_rec->vlan_id = vlan_id; 1432 fcf_rec->flag |= (flag | RECORD_VALID); 1433 __lpfc_update_fcf_record_pri(phba, 1434 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1435 new_fcf_record); 1436 } 1437 1438 /** 1439 * lpfc_register_fcf - Register the FCF with hba. 1440 * @phba: pointer to lpfc hba data structure. 1441 * 1442 * This routine issues a register fcfi mailbox command to register 1443 * the fcf with HBA. 1444 **/ 1445 static void 1446 lpfc_register_fcf(struct lpfc_hba *phba) 1447 { 1448 LPFC_MBOXQ_t *fcf_mbxq; 1449 int rc; 1450 1451 spin_lock_irq(&phba->hbalock); 1452 /* If the FCF is not available do nothing. */ 1453 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1454 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1455 spin_unlock_irq(&phba->hbalock); 1456 return; 1457 } 1458 1459 /* The FCF is already registered, start discovery */ 1460 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1461 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1462 phba->hba_flag &= ~FCF_TS_INPROG; 1463 if (phba->pport->port_state != LPFC_FLOGI && 1464 phba->pport->fc_flag & FC_FABRIC) { 1465 phba->hba_flag |= FCF_RR_INPROG; 1466 spin_unlock_irq(&phba->hbalock); 1467 lpfc_initial_flogi(phba->pport); 1468 return; 1469 } 1470 spin_unlock_irq(&phba->hbalock); 1471 return; 1472 } 1473 spin_unlock_irq(&phba->hbalock); 1474 1475 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1476 if (!fcf_mbxq) { 1477 spin_lock_irq(&phba->hbalock); 1478 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1479 spin_unlock_irq(&phba->hbalock); 1480 return; 1481 } 1482 1483 lpfc_reg_fcfi(phba, fcf_mbxq); 1484 fcf_mbxq->vport = phba->pport; 1485 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1486 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1487 if (rc == MBX_NOT_FINISHED) { 1488 spin_lock_irq(&phba->hbalock); 1489 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1490 spin_unlock_irq(&phba->hbalock); 1491 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1492 } 1493 1494 return; 1495 } 1496 1497 /** 1498 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1499 * @phba: pointer to lpfc hba data structure. 1500 * @new_fcf_record: pointer to fcf record. 1501 * @boot_flag: Indicates if this record used by boot bios. 1502 * @addr_mode: The address mode to be used by this FCF 1503 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1504 * 1505 * This routine compare the fcf record with connect list obtained from the 1506 * config region to decide if this FCF can be used for SAN discovery. It returns 1507 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1508 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1509 * is used by boot bios and addr_mode will indicate the addressing mode to be 1510 * used for this FCF when the function returns. 1511 * If the FCF record need to be used with a particular vlan id, the vlan is 1512 * set in the vlan_id on return of the function. If not VLAN tagging need to 1513 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1514 **/ 1515 static int 1516 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1517 struct fcf_record *new_fcf_record, 1518 uint32_t *boot_flag, uint32_t *addr_mode, 1519 uint16_t *vlan_id) 1520 { 1521 struct lpfc_fcf_conn_entry *conn_entry; 1522 int i, j, fcf_vlan_id = 0; 1523 1524 /* Find the lowest VLAN id in the FCF record */ 1525 for (i = 0; i < 512; i++) { 1526 if (new_fcf_record->vlan_bitmap[i]) { 1527 fcf_vlan_id = i * 8; 1528 j = 0; 1529 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1530 j++; 1531 fcf_vlan_id++; 1532 } 1533 break; 1534 } 1535 } 1536 1537 /* FCF not valid/available or solicitation in progress */ 1538 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1539 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1540 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1541 return 0; 1542 1543 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1544 *boot_flag = 0; 1545 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1546 new_fcf_record); 1547 if (phba->valid_vlan) 1548 *vlan_id = phba->vlan_id; 1549 else 1550 *vlan_id = LPFC_FCOE_NULL_VID; 1551 return 1; 1552 } 1553 1554 /* 1555 * If there are no FCF connection table entry, driver connect to all 1556 * FCFs. 1557 */ 1558 if (list_empty(&phba->fcf_conn_rec_list)) { 1559 *boot_flag = 0; 1560 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1561 new_fcf_record); 1562 1563 /* 1564 * When there are no FCF connect entries, use driver's default 1565 * addressing mode - FPMA. 1566 */ 1567 if (*addr_mode & LPFC_FCF_FPMA) 1568 *addr_mode = LPFC_FCF_FPMA; 1569 1570 /* If FCF record report a vlan id use that vlan id */ 1571 if (fcf_vlan_id) 1572 *vlan_id = fcf_vlan_id; 1573 else 1574 *vlan_id = LPFC_FCOE_NULL_VID; 1575 return 1; 1576 } 1577 1578 list_for_each_entry(conn_entry, 1579 &phba->fcf_conn_rec_list, list) { 1580 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1581 continue; 1582 1583 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1584 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1585 new_fcf_record)) 1586 continue; 1587 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1588 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1589 new_fcf_record)) 1590 continue; 1591 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1592 /* 1593 * If the vlan bit map does not have the bit set for the 1594 * vlan id to be used, then it is not a match. 1595 */ 1596 if (!(new_fcf_record->vlan_bitmap 1597 [conn_entry->conn_rec.vlan_tag / 8] & 1598 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1599 continue; 1600 } 1601 1602 /* 1603 * If connection record does not support any addressing mode, 1604 * skip the FCF record. 1605 */ 1606 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1607 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1608 continue; 1609 1610 /* 1611 * Check if the connection record specifies a required 1612 * addressing mode. 1613 */ 1614 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1615 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1616 1617 /* 1618 * If SPMA required but FCF not support this continue. 1619 */ 1620 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1621 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1622 new_fcf_record) & LPFC_FCF_SPMA)) 1623 continue; 1624 1625 /* 1626 * If FPMA required but FCF not support this continue. 1627 */ 1628 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1629 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1630 new_fcf_record) & LPFC_FCF_FPMA)) 1631 continue; 1632 } 1633 1634 /* 1635 * This fcf record matches filtering criteria. 1636 */ 1637 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1638 *boot_flag = 1; 1639 else 1640 *boot_flag = 0; 1641 1642 /* 1643 * If user did not specify any addressing mode, or if the 1644 * preferred addressing mode specified by user is not supported 1645 * by FCF, allow fabric to pick the addressing mode. 1646 */ 1647 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1648 new_fcf_record); 1649 /* 1650 * If the user specified a required address mode, assign that 1651 * address mode 1652 */ 1653 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1654 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1655 *addr_mode = (conn_entry->conn_rec.flags & 1656 FCFCNCT_AM_SPMA) ? 1657 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1658 /* 1659 * If the user specified a preferred address mode, use the 1660 * addr mode only if FCF support the addr_mode. 1661 */ 1662 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1663 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1664 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1665 (*addr_mode & LPFC_FCF_SPMA)) 1666 *addr_mode = LPFC_FCF_SPMA; 1667 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1668 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1669 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1670 (*addr_mode & LPFC_FCF_FPMA)) 1671 *addr_mode = LPFC_FCF_FPMA; 1672 1673 /* If matching connect list has a vlan id, use it */ 1674 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1675 *vlan_id = conn_entry->conn_rec.vlan_tag; 1676 /* 1677 * If no vlan id is specified in connect list, use the vlan id 1678 * in the FCF record 1679 */ 1680 else if (fcf_vlan_id) 1681 *vlan_id = fcf_vlan_id; 1682 else 1683 *vlan_id = LPFC_FCOE_NULL_VID; 1684 1685 return 1; 1686 } 1687 1688 return 0; 1689 } 1690 1691 /** 1692 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1693 * @phba: pointer to lpfc hba data structure. 1694 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1695 * 1696 * This function check if there is any fcoe event pending while driver 1697 * scan FCF entries. If there is any pending event, it will restart the 1698 * FCF saning and return 1 else return 0. 1699 */ 1700 int 1701 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1702 { 1703 /* 1704 * If the Link is up and no FCoE events while in the 1705 * FCF discovery, no need to restart FCF discovery. 1706 */ 1707 if ((phba->link_state >= LPFC_LINK_UP) && 1708 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1709 return 0; 1710 1711 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1712 "2768 Pending link or FCF event during current " 1713 "handling of the previous event: link_state:x%x, " 1714 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1715 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1716 phba->fcoe_eventtag); 1717 1718 spin_lock_irq(&phba->hbalock); 1719 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1720 spin_unlock_irq(&phba->hbalock); 1721 1722 if (phba->link_state >= LPFC_LINK_UP) { 1723 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1724 "2780 Restart FCF table scan due to " 1725 "pending FCF event:evt_tag_at_scan:x%x, " 1726 "evt_tag_current:x%x\n", 1727 phba->fcoe_eventtag_at_fcf_scan, 1728 phba->fcoe_eventtag); 1729 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1730 } else { 1731 /* 1732 * Do not continue FCF discovery and clear FCF_TS_INPROG 1733 * flag 1734 */ 1735 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1736 "2833 Stop FCF discovery process due to link " 1737 "state change (x%x)\n", phba->link_state); 1738 spin_lock_irq(&phba->hbalock); 1739 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1740 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1741 spin_unlock_irq(&phba->hbalock); 1742 } 1743 1744 /* Unregister the currently registered FCF if required */ 1745 if (unreg_fcf) { 1746 spin_lock_irq(&phba->hbalock); 1747 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1748 spin_unlock_irq(&phba->hbalock); 1749 lpfc_sli4_unregister_fcf(phba); 1750 } 1751 return 1; 1752 } 1753 1754 /** 1755 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1756 * @phba: pointer to lpfc hba data structure. 1757 * @fcf_cnt: number of eligible fcf record seen so far. 1758 * 1759 * This function makes an running random selection decision on FCF record to 1760 * use through a sequence of @fcf_cnt eligible FCF records with equal 1761 * probability. To perform integer manunipulation of random numbers with 1762 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1763 * from prandom_u32() are taken as the random random number generated. 1764 * 1765 * Returns true when outcome is for the newly read FCF record should be 1766 * chosen; otherwise, return false when outcome is for keeping the previously 1767 * chosen FCF record. 1768 **/ 1769 static bool 1770 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1771 { 1772 uint32_t rand_num; 1773 1774 /* Get 16-bit uniform random number */ 1775 rand_num = 0xFFFF & prandom_u32(); 1776 1777 /* Decision with probability 1/fcf_cnt */ 1778 if ((fcf_cnt * rand_num) < 0xFFFF) 1779 return true; 1780 else 1781 return false; 1782 } 1783 1784 /** 1785 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1786 * @phba: pointer to lpfc hba data structure. 1787 * @mboxq: pointer to mailbox object. 1788 * @next_fcf_index: pointer to holder of next fcf index. 1789 * 1790 * This routine parses the non-embedded fcf mailbox command by performing the 1791 * necessarily error checking, non-embedded read FCF record mailbox command 1792 * SGE parsing, and endianness swapping. 1793 * 1794 * Returns the pointer to the new FCF record in the non-embedded mailbox 1795 * command DMA memory if successfully, other NULL. 1796 */ 1797 static struct fcf_record * 1798 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1799 uint16_t *next_fcf_index) 1800 { 1801 void *virt_addr; 1802 struct lpfc_mbx_sge sge; 1803 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1804 uint32_t shdr_status, shdr_add_status, if_type; 1805 union lpfc_sli4_cfg_shdr *shdr; 1806 struct fcf_record *new_fcf_record; 1807 1808 /* Get the first SGE entry from the non-embedded DMA memory. This 1809 * routine only uses a single SGE. 1810 */ 1811 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1812 if (unlikely(!mboxq->sge_array)) { 1813 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1814 "2524 Failed to get the non-embedded SGE " 1815 "virtual address\n"); 1816 return NULL; 1817 } 1818 virt_addr = mboxq->sge_array->addr[0]; 1819 1820 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1821 lpfc_sli_pcimem_bcopy(shdr, shdr, 1822 sizeof(union lpfc_sli4_cfg_shdr)); 1823 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1824 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1825 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1826 if (shdr_status || shdr_add_status) { 1827 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1828 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1829 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1830 "2726 READ_FCF_RECORD Indicates empty " 1831 "FCF table.\n"); 1832 else 1833 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1834 "2521 READ_FCF_RECORD mailbox failed " 1835 "with status x%x add_status x%x, " 1836 "mbx\n", shdr_status, shdr_add_status); 1837 return NULL; 1838 } 1839 1840 /* Interpreting the returned information of the FCF record */ 1841 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1842 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1843 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1844 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1845 new_fcf_record = (struct fcf_record *)(virt_addr + 1846 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1847 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1848 offsetof(struct fcf_record, vlan_bitmap)); 1849 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1850 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1851 1852 return new_fcf_record; 1853 } 1854 1855 /** 1856 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1857 * @phba: pointer to lpfc hba data structure. 1858 * @fcf_record: pointer to the fcf record. 1859 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1860 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1861 * 1862 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1863 * enabled. 1864 **/ 1865 static void 1866 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1867 struct fcf_record *fcf_record, 1868 uint16_t vlan_id, 1869 uint16_t next_fcf_index) 1870 { 1871 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1872 "2764 READ_FCF_RECORD:\n" 1873 "\tFCF_Index : x%x\n" 1874 "\tFCF_Avail : x%x\n" 1875 "\tFCF_Valid : x%x\n" 1876 "\tFCF_SOL : x%x\n" 1877 "\tFIP_Priority : x%x\n" 1878 "\tMAC_Provider : x%x\n" 1879 "\tLowest VLANID : x%x\n" 1880 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1881 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1882 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1883 "\tNext_FCF_Index: x%x\n", 1884 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1885 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1886 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1887 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1888 fcf_record->fip_priority, 1889 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1890 vlan_id, 1891 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1892 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1893 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1894 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1895 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1896 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1897 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1898 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1899 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1900 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1901 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1902 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1903 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1904 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1905 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1906 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1907 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1908 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1909 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1910 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1911 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1912 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1913 next_fcf_index); 1914 } 1915 1916 /** 1917 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1918 * @phba: pointer to lpfc hba data structure. 1919 * @fcf_rec: pointer to an existing FCF record. 1920 * @new_fcf_record: pointer to a new FCF record. 1921 * @new_vlan_id: vlan id from the new FCF record. 1922 * 1923 * This function performs matching test of a new FCF record against an existing 1924 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1925 * will not be used as part of the FCF record matching criteria. 1926 * 1927 * Returns true if all the fields matching, otherwise returns false. 1928 */ 1929 static bool 1930 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1931 struct lpfc_fcf_rec *fcf_rec, 1932 struct fcf_record *new_fcf_record, 1933 uint16_t new_vlan_id) 1934 { 1935 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1936 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1937 return false; 1938 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1939 return false; 1940 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1941 return false; 1942 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1943 return false; 1944 if (fcf_rec->priority != new_fcf_record->fip_priority) 1945 return false; 1946 return true; 1947 } 1948 1949 /** 1950 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1951 * @vport: Pointer to vport object. 1952 * @fcf_index: index to next fcf. 1953 * 1954 * This function processing the roundrobin fcf failover to next fcf index. 1955 * When this function is invoked, there will be a current fcf registered 1956 * for flogi. 1957 * Return: 0 for continue retrying flogi on currently registered fcf; 1958 * 1 for stop flogi on currently registered fcf; 1959 */ 1960 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1961 { 1962 struct lpfc_hba *phba = vport->phba; 1963 int rc; 1964 1965 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1966 spin_lock_irq(&phba->hbalock); 1967 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1968 spin_unlock_irq(&phba->hbalock); 1969 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1970 "2872 Devloss tmo with no eligible " 1971 "FCF, unregister in-use FCF (x%x) " 1972 "and rescan FCF table\n", 1973 phba->fcf.current_rec.fcf_indx); 1974 lpfc_unregister_fcf_rescan(phba); 1975 goto stop_flogi_current_fcf; 1976 } 1977 /* Mark the end to FLOGI roundrobin failover */ 1978 phba->hba_flag &= ~FCF_RR_INPROG; 1979 /* Allow action to new fcf asynchronous event */ 1980 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1981 spin_unlock_irq(&phba->hbalock); 1982 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1983 "2865 No FCF available, stop roundrobin FCF " 1984 "failover and change port state:x%x/x%x\n", 1985 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1986 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1987 goto stop_flogi_current_fcf; 1988 } else { 1989 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1990 "2794 Try FLOGI roundrobin FCF failover to " 1991 "(x%x)\n", fcf_index); 1992 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1993 if (rc) 1994 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1995 "2761 FLOGI roundrobin FCF failover " 1996 "failed (rc:x%x) to read FCF (x%x)\n", 1997 rc, phba->fcf.current_rec.fcf_indx); 1998 else 1999 goto stop_flogi_current_fcf; 2000 } 2001 return 0; 2002 2003 stop_flogi_current_fcf: 2004 lpfc_can_disctmo(vport); 2005 return 1; 2006 } 2007 2008 /** 2009 * lpfc_sli4_fcf_pri_list_del 2010 * @phba: pointer to lpfc hba data structure. 2011 * @fcf_index the index of the fcf record to delete 2012 * This routine checks the on list flag of the fcf_index to be deleted. 2013 * If it is one the list then it is removed from the list, and the flag 2014 * is cleared. This routine grab the hbalock before removing the fcf 2015 * record from the list. 2016 **/ 2017 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2018 uint16_t fcf_index) 2019 { 2020 struct lpfc_fcf_pri *new_fcf_pri; 2021 2022 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2023 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2024 "3058 deleting idx x%x pri x%x flg x%x\n", 2025 fcf_index, new_fcf_pri->fcf_rec.priority, 2026 new_fcf_pri->fcf_rec.flag); 2027 spin_lock_irq(&phba->hbalock); 2028 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2029 if (phba->fcf.current_rec.priority == 2030 new_fcf_pri->fcf_rec.priority) 2031 phba->fcf.eligible_fcf_cnt--; 2032 list_del_init(&new_fcf_pri->list); 2033 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2034 } 2035 spin_unlock_irq(&phba->hbalock); 2036 } 2037 2038 /** 2039 * lpfc_sli4_set_fcf_flogi_fail 2040 * @phba: pointer to lpfc hba data structure. 2041 * @fcf_index the index of the fcf record to update 2042 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2043 * flag so the the round robin slection for the particular priority level 2044 * will try a different fcf record that does not have this bit set. 2045 * If the fcf record is re-read for any reason this flag is cleared brfore 2046 * adding it to the priority list. 2047 **/ 2048 void 2049 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2050 { 2051 struct lpfc_fcf_pri *new_fcf_pri; 2052 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2053 spin_lock_irq(&phba->hbalock); 2054 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2055 spin_unlock_irq(&phba->hbalock); 2056 } 2057 2058 /** 2059 * lpfc_sli4_fcf_pri_list_add 2060 * @phba: pointer to lpfc hba data structure. 2061 * @fcf_index the index of the fcf record to add 2062 * This routine checks the priority of the fcf_index to be added. 2063 * If it is a lower priority than the current head of the fcf_pri list 2064 * then it is added to the list in the right order. 2065 * If it is the same priority as the current head of the list then it 2066 * is added to the head of the list and its bit in the rr_bmask is set. 2067 * If the fcf_index to be added is of a higher priority than the current 2068 * head of the list then the rr_bmask is cleared, its bit is set in the 2069 * rr_bmask and it is added to the head of the list. 2070 * returns: 2071 * 0=success 1=failure 2072 **/ 2073 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2074 uint16_t fcf_index, 2075 struct fcf_record *new_fcf_record) 2076 { 2077 uint16_t current_fcf_pri; 2078 uint16_t last_index; 2079 struct lpfc_fcf_pri *fcf_pri; 2080 struct lpfc_fcf_pri *next_fcf_pri; 2081 struct lpfc_fcf_pri *new_fcf_pri; 2082 int ret; 2083 2084 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2085 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2086 "3059 adding idx x%x pri x%x flg x%x\n", 2087 fcf_index, new_fcf_record->fip_priority, 2088 new_fcf_pri->fcf_rec.flag); 2089 spin_lock_irq(&phba->hbalock); 2090 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2091 list_del_init(&new_fcf_pri->list); 2092 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2093 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2094 if (list_empty(&phba->fcf.fcf_pri_list)) { 2095 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2096 ret = lpfc_sli4_fcf_rr_index_set(phba, 2097 new_fcf_pri->fcf_rec.fcf_index); 2098 goto out; 2099 } 2100 2101 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2102 LPFC_SLI4_FCF_TBL_INDX_MAX); 2103 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2104 ret = 0; /* Empty rr list */ 2105 goto out; 2106 } 2107 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2108 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2109 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2110 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2111 memset(phba->fcf.fcf_rr_bmask, 0, 2112 sizeof(*phba->fcf.fcf_rr_bmask)); 2113 /* fcfs_at_this_priority_level = 1; */ 2114 phba->fcf.eligible_fcf_cnt = 1; 2115 } else 2116 /* fcfs_at_this_priority_level++; */ 2117 phba->fcf.eligible_fcf_cnt++; 2118 ret = lpfc_sli4_fcf_rr_index_set(phba, 2119 new_fcf_pri->fcf_rec.fcf_index); 2120 goto out; 2121 } 2122 2123 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2124 &phba->fcf.fcf_pri_list, list) { 2125 if (new_fcf_pri->fcf_rec.priority <= 2126 fcf_pri->fcf_rec.priority) { 2127 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2128 list_add(&new_fcf_pri->list, 2129 &phba->fcf.fcf_pri_list); 2130 else 2131 list_add(&new_fcf_pri->list, 2132 &((struct lpfc_fcf_pri *) 2133 fcf_pri->list.prev)->list); 2134 ret = 0; 2135 goto out; 2136 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2137 || new_fcf_pri->fcf_rec.priority < 2138 next_fcf_pri->fcf_rec.priority) { 2139 list_add(&new_fcf_pri->list, &fcf_pri->list); 2140 ret = 0; 2141 goto out; 2142 } 2143 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2144 continue; 2145 2146 } 2147 ret = 1; 2148 out: 2149 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2150 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2151 spin_unlock_irq(&phba->hbalock); 2152 return ret; 2153 } 2154 2155 /** 2156 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2157 * @phba: pointer to lpfc hba data structure. 2158 * @mboxq: pointer to mailbox object. 2159 * 2160 * This function iterates through all the fcf records available in 2161 * HBA and chooses the optimal FCF record for discovery. After finding 2162 * the FCF for discovery it registers the FCF record and kicks start 2163 * discovery. 2164 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2165 * use an FCF record which matches fabric name and mac address of the 2166 * currently used FCF record. 2167 * If the driver supports only one FCF, it will try to use the FCF record 2168 * used by BOOT_BIOS. 2169 */ 2170 void 2171 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2172 { 2173 struct fcf_record *new_fcf_record; 2174 uint32_t boot_flag, addr_mode; 2175 uint16_t fcf_index, next_fcf_index; 2176 struct lpfc_fcf_rec *fcf_rec = NULL; 2177 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2178 bool select_new_fcf; 2179 int rc; 2180 2181 /* If there is pending FCoE event restart FCF table scan */ 2182 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2183 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2184 return; 2185 } 2186 2187 /* Parse the FCF record from the non-embedded mailbox command */ 2188 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2189 &next_fcf_index); 2190 if (!new_fcf_record) { 2191 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2192 "2765 Mailbox command READ_FCF_RECORD " 2193 "failed to retrieve a FCF record.\n"); 2194 /* Let next new FCF event trigger fast failover */ 2195 spin_lock_irq(&phba->hbalock); 2196 phba->hba_flag &= ~FCF_TS_INPROG; 2197 spin_unlock_irq(&phba->hbalock); 2198 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2199 return; 2200 } 2201 2202 /* Check the FCF record against the connection list */ 2203 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2204 &addr_mode, &vlan_id); 2205 2206 /* Log the FCF record information if turned on */ 2207 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2208 next_fcf_index); 2209 2210 /* 2211 * If the fcf record does not match with connect list entries 2212 * read the next entry; otherwise, this is an eligible FCF 2213 * record for roundrobin FCF failover. 2214 */ 2215 if (!rc) { 2216 lpfc_sli4_fcf_pri_list_del(phba, 2217 bf_get(lpfc_fcf_record_fcf_index, 2218 new_fcf_record)); 2219 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2220 "2781 FCF (x%x) failed connection " 2221 "list check: (x%x/x%x/%x)\n", 2222 bf_get(lpfc_fcf_record_fcf_index, 2223 new_fcf_record), 2224 bf_get(lpfc_fcf_record_fcf_avail, 2225 new_fcf_record), 2226 bf_get(lpfc_fcf_record_fcf_valid, 2227 new_fcf_record), 2228 bf_get(lpfc_fcf_record_fcf_sol, 2229 new_fcf_record)); 2230 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2231 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2232 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2233 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2234 phba->fcf.current_rec.fcf_indx) { 2235 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2236 "2862 FCF (x%x) matches property " 2237 "of in-use FCF (x%x)\n", 2238 bf_get(lpfc_fcf_record_fcf_index, 2239 new_fcf_record), 2240 phba->fcf.current_rec.fcf_indx); 2241 goto read_next_fcf; 2242 } 2243 /* 2244 * In case the current in-use FCF record becomes 2245 * invalid/unavailable during FCF discovery that 2246 * was not triggered by fast FCF failover process, 2247 * treat it as fast FCF failover. 2248 */ 2249 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2250 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2251 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2252 "2835 Invalid in-use FCF " 2253 "(x%x), enter FCF failover " 2254 "table scan.\n", 2255 phba->fcf.current_rec.fcf_indx); 2256 spin_lock_irq(&phba->hbalock); 2257 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2258 spin_unlock_irq(&phba->hbalock); 2259 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2260 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2261 LPFC_FCOE_FCF_GET_FIRST); 2262 return; 2263 } 2264 } 2265 goto read_next_fcf; 2266 } else { 2267 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2268 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2269 new_fcf_record); 2270 if (rc) 2271 goto read_next_fcf; 2272 } 2273 2274 /* 2275 * If this is not the first FCF discovery of the HBA, use last 2276 * FCF record for the discovery. The condition that a rescan 2277 * matches the in-use FCF record: fabric name, switch name, mac 2278 * address, and vlan_id. 2279 */ 2280 spin_lock_irq(&phba->hbalock); 2281 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2282 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2283 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2284 new_fcf_record, vlan_id)) { 2285 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2286 phba->fcf.current_rec.fcf_indx) { 2287 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2288 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2289 /* Stop FCF redisc wait timer */ 2290 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2291 phba); 2292 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2293 /* Fast failover, mark completed */ 2294 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2295 spin_unlock_irq(&phba->hbalock); 2296 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2297 "2836 New FCF matches in-use " 2298 "FCF (x%x), port_state:x%x, " 2299 "fc_flag:x%x\n", 2300 phba->fcf.current_rec.fcf_indx, 2301 phba->pport->port_state, 2302 phba->pport->fc_flag); 2303 goto out; 2304 } else 2305 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2306 "2863 New FCF (x%x) matches " 2307 "property of in-use FCF (x%x)\n", 2308 bf_get(lpfc_fcf_record_fcf_index, 2309 new_fcf_record), 2310 phba->fcf.current_rec.fcf_indx); 2311 } 2312 /* 2313 * Read next FCF record from HBA searching for the matching 2314 * with in-use record only if not during the fast failover 2315 * period. In case of fast failover period, it shall try to 2316 * determine whether the FCF record just read should be the 2317 * next candidate. 2318 */ 2319 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2320 spin_unlock_irq(&phba->hbalock); 2321 goto read_next_fcf; 2322 } 2323 } 2324 /* 2325 * Update on failover FCF record only if it's in FCF fast-failover 2326 * period; otherwise, update on current FCF record. 2327 */ 2328 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2329 fcf_rec = &phba->fcf.failover_rec; 2330 else 2331 fcf_rec = &phba->fcf.current_rec; 2332 2333 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2334 /* 2335 * If the driver FCF record does not have boot flag 2336 * set and new hba fcf record has boot flag set, use 2337 * the new hba fcf record. 2338 */ 2339 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2340 /* Choose this FCF record */ 2341 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2342 "2837 Update current FCF record " 2343 "(x%x) with new FCF record (x%x)\n", 2344 fcf_rec->fcf_indx, 2345 bf_get(lpfc_fcf_record_fcf_index, 2346 new_fcf_record)); 2347 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2348 addr_mode, vlan_id, BOOT_ENABLE); 2349 spin_unlock_irq(&phba->hbalock); 2350 goto read_next_fcf; 2351 } 2352 /* 2353 * If the driver FCF record has boot flag set and the 2354 * new hba FCF record does not have boot flag, read 2355 * the next FCF record. 2356 */ 2357 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2358 spin_unlock_irq(&phba->hbalock); 2359 goto read_next_fcf; 2360 } 2361 /* 2362 * If the new hba FCF record has lower priority value 2363 * than the driver FCF record, use the new record. 2364 */ 2365 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2366 /* Choose the new FCF record with lower priority */ 2367 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2368 "2838 Update current FCF record " 2369 "(x%x) with new FCF record (x%x)\n", 2370 fcf_rec->fcf_indx, 2371 bf_get(lpfc_fcf_record_fcf_index, 2372 new_fcf_record)); 2373 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2374 addr_mode, vlan_id, 0); 2375 /* Reset running random FCF selection count */ 2376 phba->fcf.eligible_fcf_cnt = 1; 2377 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2378 /* Update running random FCF selection count */ 2379 phba->fcf.eligible_fcf_cnt++; 2380 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2381 phba->fcf.eligible_fcf_cnt); 2382 if (select_new_fcf) { 2383 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2384 "2839 Update current FCF record " 2385 "(x%x) with new FCF record (x%x)\n", 2386 fcf_rec->fcf_indx, 2387 bf_get(lpfc_fcf_record_fcf_index, 2388 new_fcf_record)); 2389 /* Choose the new FCF by random selection */ 2390 __lpfc_update_fcf_record(phba, fcf_rec, 2391 new_fcf_record, 2392 addr_mode, vlan_id, 0); 2393 } 2394 } 2395 spin_unlock_irq(&phba->hbalock); 2396 goto read_next_fcf; 2397 } 2398 /* 2399 * This is the first suitable FCF record, choose this record for 2400 * initial best-fit FCF. 2401 */ 2402 if (fcf_rec) { 2403 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2404 "2840 Update initial FCF candidate " 2405 "with FCF (x%x)\n", 2406 bf_get(lpfc_fcf_record_fcf_index, 2407 new_fcf_record)); 2408 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2409 addr_mode, vlan_id, (boot_flag ? 2410 BOOT_ENABLE : 0)); 2411 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2412 /* Setup initial running random FCF selection count */ 2413 phba->fcf.eligible_fcf_cnt = 1; 2414 } 2415 spin_unlock_irq(&phba->hbalock); 2416 goto read_next_fcf; 2417 2418 read_next_fcf: 2419 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2420 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2421 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2422 /* 2423 * Case of FCF fast failover scan 2424 */ 2425 2426 /* 2427 * It has not found any suitable FCF record, cancel 2428 * FCF scan inprogress, and do nothing 2429 */ 2430 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2431 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2432 "2782 No suitable FCF found: " 2433 "(x%x/x%x)\n", 2434 phba->fcoe_eventtag_at_fcf_scan, 2435 bf_get(lpfc_fcf_record_fcf_index, 2436 new_fcf_record)); 2437 spin_lock_irq(&phba->hbalock); 2438 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2439 phba->hba_flag &= ~FCF_TS_INPROG; 2440 spin_unlock_irq(&phba->hbalock); 2441 /* Unregister in-use FCF and rescan */ 2442 lpfc_printf_log(phba, KERN_INFO, 2443 LOG_FIP, 2444 "2864 On devloss tmo " 2445 "unreg in-use FCF and " 2446 "rescan FCF table\n"); 2447 lpfc_unregister_fcf_rescan(phba); 2448 return; 2449 } 2450 /* 2451 * Let next new FCF event trigger fast failover 2452 */ 2453 phba->hba_flag &= ~FCF_TS_INPROG; 2454 spin_unlock_irq(&phba->hbalock); 2455 return; 2456 } 2457 /* 2458 * It has found a suitable FCF record that is not 2459 * the same as in-use FCF record, unregister the 2460 * in-use FCF record, replace the in-use FCF record 2461 * with the new FCF record, mark FCF fast failover 2462 * completed, and then start register the new FCF 2463 * record. 2464 */ 2465 2466 /* Unregister the current in-use FCF record */ 2467 lpfc_unregister_fcf(phba); 2468 2469 /* Replace in-use record with the new record */ 2470 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2471 "2842 Replace in-use FCF (x%x) " 2472 "with failover FCF (x%x)\n", 2473 phba->fcf.current_rec.fcf_indx, 2474 phba->fcf.failover_rec.fcf_indx); 2475 memcpy(&phba->fcf.current_rec, 2476 &phba->fcf.failover_rec, 2477 sizeof(struct lpfc_fcf_rec)); 2478 /* 2479 * Mark the fast FCF failover rediscovery completed 2480 * and the start of the first round of the roundrobin 2481 * FCF failover. 2482 */ 2483 spin_lock_irq(&phba->hbalock); 2484 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2485 spin_unlock_irq(&phba->hbalock); 2486 /* Register to the new FCF record */ 2487 lpfc_register_fcf(phba); 2488 } else { 2489 /* 2490 * In case of transaction period to fast FCF failover, 2491 * do nothing when search to the end of the FCF table. 2492 */ 2493 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2494 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2495 return; 2496 2497 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2498 phba->fcf.fcf_flag & FCF_IN_USE) { 2499 /* 2500 * In case the current in-use FCF record no 2501 * longer existed during FCF discovery that 2502 * was not triggered by fast FCF failover 2503 * process, treat it as fast FCF failover. 2504 */ 2505 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2506 "2841 In-use FCF record (x%x) " 2507 "not reported, entering fast " 2508 "FCF failover mode scanning.\n", 2509 phba->fcf.current_rec.fcf_indx); 2510 spin_lock_irq(&phba->hbalock); 2511 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2512 spin_unlock_irq(&phba->hbalock); 2513 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2514 LPFC_FCOE_FCF_GET_FIRST); 2515 return; 2516 } 2517 /* Register to the new FCF record */ 2518 lpfc_register_fcf(phba); 2519 } 2520 } else 2521 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2522 return; 2523 2524 out: 2525 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2526 lpfc_register_fcf(phba); 2527 2528 return; 2529 } 2530 2531 /** 2532 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2533 * @phba: pointer to lpfc hba data structure. 2534 * @mboxq: pointer to mailbox object. 2535 * 2536 * This is the callback function for FLOGI failure roundrobin FCF failover 2537 * read FCF record mailbox command from the eligible FCF record bmask for 2538 * performing the failover. If the FCF read back is not valid/available, it 2539 * fails through to retrying FLOGI to the currently registered FCF again. 2540 * Otherwise, if the FCF read back is valid and available, it will set the 2541 * newly read FCF record to the failover FCF record, unregister currently 2542 * registered FCF record, copy the failover FCF record to the current 2543 * FCF record, and then register the current FCF record before proceeding 2544 * to trying FLOGI on the new failover FCF. 2545 */ 2546 void 2547 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2548 { 2549 struct fcf_record *new_fcf_record; 2550 uint32_t boot_flag, addr_mode; 2551 uint16_t next_fcf_index, fcf_index; 2552 uint16_t current_fcf_index; 2553 uint16_t vlan_id; 2554 int rc; 2555 2556 /* If link state is not up, stop the roundrobin failover process */ 2557 if (phba->link_state < LPFC_LINK_UP) { 2558 spin_lock_irq(&phba->hbalock); 2559 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2560 phba->hba_flag &= ~FCF_RR_INPROG; 2561 spin_unlock_irq(&phba->hbalock); 2562 goto out; 2563 } 2564 2565 /* Parse the FCF record from the non-embedded mailbox command */ 2566 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2567 &next_fcf_index); 2568 if (!new_fcf_record) { 2569 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2570 "2766 Mailbox command READ_FCF_RECORD " 2571 "failed to retrieve a FCF record. " 2572 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2573 phba->fcf.fcf_flag); 2574 lpfc_unregister_fcf_rescan(phba); 2575 goto out; 2576 } 2577 2578 /* Get the needed parameters from FCF record */ 2579 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2580 &addr_mode, &vlan_id); 2581 2582 /* Log the FCF record information if turned on */ 2583 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2584 next_fcf_index); 2585 2586 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2587 if (!rc) { 2588 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2589 "2848 Remove ineligible FCF (x%x) from " 2590 "from roundrobin bmask\n", fcf_index); 2591 /* Clear roundrobin bmask bit for ineligible FCF */ 2592 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2593 /* Perform next round of roundrobin FCF failover */ 2594 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2595 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2596 if (rc) 2597 goto out; 2598 goto error_out; 2599 } 2600 2601 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2602 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2603 "2760 Perform FLOGI roundrobin FCF failover: " 2604 "FCF (x%x) back to FCF (x%x)\n", 2605 phba->fcf.current_rec.fcf_indx, fcf_index); 2606 /* Wait 500 ms before retrying FLOGI to current FCF */ 2607 msleep(500); 2608 lpfc_issue_init_vfi(phba->pport); 2609 goto out; 2610 } 2611 2612 /* Upload new FCF record to the failover FCF record */ 2613 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2614 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2615 phba->fcf.failover_rec.fcf_indx, fcf_index); 2616 spin_lock_irq(&phba->hbalock); 2617 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2618 new_fcf_record, addr_mode, vlan_id, 2619 (boot_flag ? BOOT_ENABLE : 0)); 2620 spin_unlock_irq(&phba->hbalock); 2621 2622 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2623 2624 /* Unregister the current in-use FCF record */ 2625 lpfc_unregister_fcf(phba); 2626 2627 /* Replace in-use record with the new record */ 2628 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2629 sizeof(struct lpfc_fcf_rec)); 2630 2631 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2632 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2633 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2634 2635 error_out: 2636 lpfc_register_fcf(phba); 2637 out: 2638 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2639 } 2640 2641 /** 2642 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2643 * @phba: pointer to lpfc hba data structure. 2644 * @mboxq: pointer to mailbox object. 2645 * 2646 * This is the callback function of read FCF record mailbox command for 2647 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2648 * failover when a new FCF event happened. If the FCF read back is 2649 * valid/available and it passes the connection list check, it updates 2650 * the bmask for the eligible FCF record for roundrobin failover. 2651 */ 2652 void 2653 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2654 { 2655 struct fcf_record *new_fcf_record; 2656 uint32_t boot_flag, addr_mode; 2657 uint16_t fcf_index, next_fcf_index; 2658 uint16_t vlan_id; 2659 int rc; 2660 2661 /* If link state is not up, no need to proceed */ 2662 if (phba->link_state < LPFC_LINK_UP) 2663 goto out; 2664 2665 /* If FCF discovery period is over, no need to proceed */ 2666 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2667 goto out; 2668 2669 /* Parse the FCF record from the non-embedded mailbox command */ 2670 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2671 &next_fcf_index); 2672 if (!new_fcf_record) { 2673 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2674 "2767 Mailbox command READ_FCF_RECORD " 2675 "failed to retrieve a FCF record.\n"); 2676 goto out; 2677 } 2678 2679 /* Check the connection list for eligibility */ 2680 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2681 &addr_mode, &vlan_id); 2682 2683 /* Log the FCF record information if turned on */ 2684 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2685 next_fcf_index); 2686 2687 if (!rc) 2688 goto out; 2689 2690 /* Update the eligible FCF record index bmask */ 2691 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2692 2693 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2694 2695 out: 2696 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2697 } 2698 2699 /** 2700 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2701 * @phba: pointer to lpfc hba data structure. 2702 * @mboxq: pointer to mailbox data structure. 2703 * 2704 * This function handles completion of init vfi mailbox command. 2705 */ 2706 static void 2707 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2708 { 2709 struct lpfc_vport *vport = mboxq->vport; 2710 2711 /* 2712 * VFI not supported on interface type 0, just do the flogi 2713 * Also continue if the VFI is in use - just use the same one. 2714 */ 2715 if (mboxq->u.mb.mbxStatus && 2716 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2717 LPFC_SLI_INTF_IF_TYPE_0) && 2718 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2719 lpfc_printf_vlog(vport, KERN_ERR, 2720 LOG_MBOX, 2721 "2891 Init VFI mailbox failed 0x%x\n", 2722 mboxq->u.mb.mbxStatus); 2723 mempool_free(mboxq, phba->mbox_mem_pool); 2724 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2725 return; 2726 } 2727 2728 lpfc_initial_flogi(vport); 2729 mempool_free(mboxq, phba->mbox_mem_pool); 2730 return; 2731 } 2732 2733 /** 2734 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2735 * @vport: pointer to lpfc_vport data structure. 2736 * 2737 * This function issue a init_vfi mailbox command to initialize the VFI and 2738 * VPI for the physical port. 2739 */ 2740 void 2741 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2742 { 2743 LPFC_MBOXQ_t *mboxq; 2744 int rc; 2745 struct lpfc_hba *phba = vport->phba; 2746 2747 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2748 if (!mboxq) { 2749 lpfc_printf_vlog(vport, KERN_ERR, 2750 LOG_MBOX, "2892 Failed to allocate " 2751 "init_vfi mailbox\n"); 2752 return; 2753 } 2754 lpfc_init_vfi(mboxq, vport); 2755 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2756 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2757 if (rc == MBX_NOT_FINISHED) { 2758 lpfc_printf_vlog(vport, KERN_ERR, 2759 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2760 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2761 } 2762 } 2763 2764 /** 2765 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2766 * @phba: pointer to lpfc hba data structure. 2767 * @mboxq: pointer to mailbox data structure. 2768 * 2769 * This function handles completion of init vpi mailbox command. 2770 */ 2771 void 2772 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2773 { 2774 struct lpfc_vport *vport = mboxq->vport; 2775 struct lpfc_nodelist *ndlp; 2776 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2777 2778 if (mboxq->u.mb.mbxStatus) { 2779 lpfc_printf_vlog(vport, KERN_ERR, 2780 LOG_MBOX, 2781 "2609 Init VPI mailbox failed 0x%x\n", 2782 mboxq->u.mb.mbxStatus); 2783 mempool_free(mboxq, phba->mbox_mem_pool); 2784 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2785 return; 2786 } 2787 spin_lock_irq(shost->host_lock); 2788 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2789 spin_unlock_irq(shost->host_lock); 2790 2791 /* If this port is physical port or FDISC is done, do reg_vpi */ 2792 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2793 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2794 if (!ndlp) 2795 lpfc_printf_vlog(vport, KERN_ERR, 2796 LOG_DISCOVERY, 2797 "2731 Cannot find fabric " 2798 "controller node\n"); 2799 else 2800 lpfc_register_new_vport(phba, vport, ndlp); 2801 mempool_free(mboxq, phba->mbox_mem_pool); 2802 return; 2803 } 2804 2805 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2806 lpfc_initial_fdisc(vport); 2807 else { 2808 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2809 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2810 "2606 No NPIV Fabric support\n"); 2811 } 2812 mempool_free(mboxq, phba->mbox_mem_pool); 2813 return; 2814 } 2815 2816 /** 2817 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2818 * @vport: pointer to lpfc_vport data structure. 2819 * 2820 * This function issue a init_vpi mailbox command to initialize 2821 * VPI for the vport. 2822 */ 2823 void 2824 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2825 { 2826 LPFC_MBOXQ_t *mboxq; 2827 int rc, vpi; 2828 2829 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2830 vpi = lpfc_alloc_vpi(vport->phba); 2831 if (!vpi) { 2832 lpfc_printf_vlog(vport, KERN_ERR, 2833 LOG_MBOX, 2834 "3303 Failed to obtain vport vpi\n"); 2835 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2836 return; 2837 } 2838 vport->vpi = vpi; 2839 } 2840 2841 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2842 if (!mboxq) { 2843 lpfc_printf_vlog(vport, KERN_ERR, 2844 LOG_MBOX, "2607 Failed to allocate " 2845 "init_vpi mailbox\n"); 2846 return; 2847 } 2848 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2849 mboxq->vport = vport; 2850 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2851 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2852 if (rc == MBX_NOT_FINISHED) { 2853 lpfc_printf_vlog(vport, KERN_ERR, 2854 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2855 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2856 } 2857 } 2858 2859 /** 2860 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2861 * @phba: pointer to lpfc hba data structure. 2862 * 2863 * This function loops through the list of vports on the @phba and issues an 2864 * FDISC if possible. 2865 */ 2866 void 2867 lpfc_start_fdiscs(struct lpfc_hba *phba) 2868 { 2869 struct lpfc_vport **vports; 2870 int i; 2871 2872 vports = lpfc_create_vport_work_array(phba); 2873 if (vports != NULL) { 2874 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2875 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2876 continue; 2877 /* There are no vpi for this vport */ 2878 if (vports[i]->vpi > phba->max_vpi) { 2879 lpfc_vport_set_state(vports[i], 2880 FC_VPORT_FAILED); 2881 continue; 2882 } 2883 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2884 lpfc_vport_set_state(vports[i], 2885 FC_VPORT_LINKDOWN); 2886 continue; 2887 } 2888 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2889 lpfc_issue_init_vpi(vports[i]); 2890 continue; 2891 } 2892 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2893 lpfc_initial_fdisc(vports[i]); 2894 else { 2895 lpfc_vport_set_state(vports[i], 2896 FC_VPORT_NO_FABRIC_SUPP); 2897 lpfc_printf_vlog(vports[i], KERN_ERR, 2898 LOG_ELS, 2899 "0259 No NPIV " 2900 "Fabric support\n"); 2901 } 2902 } 2903 } 2904 lpfc_destroy_vport_work_array(phba, vports); 2905 } 2906 2907 void 2908 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2909 { 2910 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2911 struct lpfc_vport *vport = mboxq->vport; 2912 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2913 2914 /* 2915 * VFI not supported for interface type 0, so ignore any mailbox 2916 * error (except VFI in use) and continue with the discovery. 2917 */ 2918 if (mboxq->u.mb.mbxStatus && 2919 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2920 LPFC_SLI_INTF_IF_TYPE_0) && 2921 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2922 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2923 "2018 REG_VFI mbxStatus error x%x " 2924 "HBA state x%x\n", 2925 mboxq->u.mb.mbxStatus, vport->port_state); 2926 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2927 /* FLOGI failed, use loop map to make discovery list */ 2928 lpfc_disc_list_loopmap(vport); 2929 /* Start discovery */ 2930 lpfc_disc_start(vport); 2931 goto out_free_mem; 2932 } 2933 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2934 goto out_free_mem; 2935 } 2936 2937 /* If the VFI is already registered, there is nothing else to do 2938 * Unless this was a VFI update and we are in PT2PT mode, then 2939 * we should drop through to set the port state to ready. 2940 */ 2941 if (vport->fc_flag & FC_VFI_REGISTERED) 2942 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2943 vport->fc_flag & FC_PT2PT)) 2944 goto out_free_mem; 2945 2946 /* The VPI is implicitly registered when the VFI is registered */ 2947 spin_lock_irq(shost->host_lock); 2948 vport->vpi_state |= LPFC_VPI_REGISTERED; 2949 vport->fc_flag |= FC_VFI_REGISTERED; 2950 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2951 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2952 spin_unlock_irq(shost->host_lock); 2953 2954 /* In case SLI4 FC loopback test, we are ready */ 2955 if ((phba->sli_rev == LPFC_SLI_REV4) && 2956 (phba->link_flag & LS_LOOPBACK_MODE)) { 2957 phba->link_state = LPFC_HBA_READY; 2958 goto out_free_mem; 2959 } 2960 2961 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2962 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2963 "alpacnt:%d LinkState:%x topology:%x\n", 2964 vport->port_state, vport->fc_flag, vport->fc_myDID, 2965 vport->phba->alpa_map[0], 2966 phba->link_state, phba->fc_topology); 2967 2968 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2969 /* 2970 * For private loop or for NPort pt2pt, 2971 * just start discovery and we are done. 2972 */ 2973 if ((vport->fc_flag & FC_PT2PT) || 2974 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2975 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2976 2977 /* Use loop map to make discovery list */ 2978 lpfc_disc_list_loopmap(vport); 2979 /* Start discovery */ 2980 if (vport->fc_flag & FC_PT2PT) 2981 vport->port_state = LPFC_VPORT_READY; 2982 else 2983 lpfc_disc_start(vport); 2984 } else { 2985 lpfc_start_fdiscs(phba); 2986 lpfc_do_scr_ns_plogi(phba, vport); 2987 } 2988 } 2989 2990 out_free_mem: 2991 mempool_free(mboxq, phba->mbox_mem_pool); 2992 if (dmabuf) { 2993 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2994 kfree(dmabuf); 2995 } 2996 return; 2997 } 2998 2999 static void 3000 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3001 { 3002 MAILBOX_t *mb = &pmb->u.mb; 3003 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 3004 struct lpfc_vport *vport = pmb->vport; 3005 struct serv_parm *sp = &vport->fc_sparam; 3006 uint32_t ed_tov; 3007 3008 /* Check for error */ 3009 if (mb->mbxStatus) { 3010 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3011 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3012 "0319 READ_SPARAM mbxStatus error x%x " 3013 "hba state x%x>\n", 3014 mb->mbxStatus, vport->port_state); 3015 lpfc_linkdown(phba); 3016 goto out; 3017 } 3018 3019 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3020 sizeof (struct serv_parm)); 3021 3022 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3023 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3024 ed_tov = (ed_tov + 999999) / 1000000; 3025 3026 phba->fc_edtov = ed_tov; 3027 phba->fc_ratov = (2 * ed_tov) / 1000; 3028 if (phba->fc_ratov < FF_DEF_RATOV) { 3029 /* RA_TOV should be atleast 10sec for initial flogi */ 3030 phba->fc_ratov = FF_DEF_RATOV; 3031 } 3032 3033 lpfc_update_vport_wwn(vport); 3034 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3035 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3036 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3037 } 3038 3039 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3040 kfree(mp); 3041 mempool_free(pmb, phba->mbox_mem_pool); 3042 return; 3043 3044 out: 3045 pmb->context1 = NULL; 3046 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3047 kfree(mp); 3048 lpfc_issue_clear_la(phba, vport); 3049 mempool_free(pmb, phba->mbox_mem_pool); 3050 return; 3051 } 3052 3053 static void 3054 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3055 { 3056 struct lpfc_vport *vport = phba->pport; 3057 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3058 struct Scsi_Host *shost; 3059 int i; 3060 struct lpfc_dmabuf *mp; 3061 int rc; 3062 struct fcf_record *fcf_record; 3063 uint32_t fc_flags = 0; 3064 3065 spin_lock_irq(&phba->hbalock); 3066 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3067 3068 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3069 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3070 case LPFC_LINK_SPEED_1GHZ: 3071 case LPFC_LINK_SPEED_2GHZ: 3072 case LPFC_LINK_SPEED_4GHZ: 3073 case LPFC_LINK_SPEED_8GHZ: 3074 case LPFC_LINK_SPEED_10GHZ: 3075 case LPFC_LINK_SPEED_16GHZ: 3076 case LPFC_LINK_SPEED_32GHZ: 3077 break; 3078 default: 3079 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3080 break; 3081 } 3082 } 3083 3084 if (phba->fc_topology && 3085 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3086 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3087 "3314 Toplogy changed was 0x%x is 0x%x\n", 3088 phba->fc_topology, 3089 bf_get(lpfc_mbx_read_top_topology, la)); 3090 phba->fc_topology_changed = 1; 3091 } 3092 3093 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3094 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3095 3096 shost = lpfc_shost_from_vport(vport); 3097 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3098 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3099 3100 /* if npiv is enabled and this adapter supports npiv log 3101 * a message that npiv is not supported in this topology 3102 */ 3103 if (phba->cfg_enable_npiv && phba->max_vpi) 3104 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3105 "1309 Link Up Event npiv not supported in loop " 3106 "topology\n"); 3107 /* Get Loop Map information */ 3108 if (bf_get(lpfc_mbx_read_top_il, la)) 3109 fc_flags |= FC_LBIT; 3110 3111 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3112 i = la->lilpBde64.tus.f.bdeSize; 3113 3114 if (i == 0) { 3115 phba->alpa_map[0] = 0; 3116 } else { 3117 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3118 int numalpa, j, k; 3119 union { 3120 uint8_t pamap[16]; 3121 struct { 3122 uint32_t wd1; 3123 uint32_t wd2; 3124 uint32_t wd3; 3125 uint32_t wd4; 3126 } pa; 3127 } un; 3128 numalpa = phba->alpa_map[0]; 3129 j = 0; 3130 while (j < numalpa) { 3131 memset(un.pamap, 0, 16); 3132 for (k = 1; j < numalpa; k++) { 3133 un.pamap[k - 1] = 3134 phba->alpa_map[j + 1]; 3135 j++; 3136 if (k == 16) 3137 break; 3138 } 3139 /* Link Up Event ALPA map */ 3140 lpfc_printf_log(phba, 3141 KERN_WARNING, 3142 LOG_LINK_EVENT, 3143 "1304 Link Up Event " 3144 "ALPA map Data: x%x " 3145 "x%x x%x x%x\n", 3146 un.pa.wd1, un.pa.wd2, 3147 un.pa.wd3, un.pa.wd4); 3148 } 3149 } 3150 } 3151 } else { 3152 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3153 if (phba->max_vpi && phba->cfg_enable_npiv && 3154 (phba->sli_rev >= LPFC_SLI_REV3)) 3155 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3156 } 3157 vport->fc_myDID = phba->fc_pref_DID; 3158 fc_flags |= FC_LBIT; 3159 } 3160 spin_unlock_irq(&phba->hbalock); 3161 3162 if (fc_flags) { 3163 spin_lock_irq(shost->host_lock); 3164 vport->fc_flag |= fc_flags; 3165 spin_unlock_irq(shost->host_lock); 3166 } 3167 3168 lpfc_linkup(phba); 3169 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3170 if (!sparam_mbox) 3171 goto out; 3172 3173 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3174 if (rc) { 3175 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3176 goto out; 3177 } 3178 sparam_mbox->vport = vport; 3179 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3180 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3181 if (rc == MBX_NOT_FINISHED) { 3182 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3183 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3184 kfree(mp); 3185 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3186 goto out; 3187 } 3188 3189 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3190 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3191 if (!cfglink_mbox) 3192 goto out; 3193 vport->port_state = LPFC_LOCAL_CFG_LINK; 3194 lpfc_config_link(phba, cfglink_mbox); 3195 cfglink_mbox->vport = vport; 3196 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3197 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3198 if (rc == MBX_NOT_FINISHED) { 3199 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3200 goto out; 3201 } 3202 } else { 3203 vport->port_state = LPFC_VPORT_UNKNOWN; 3204 /* 3205 * Add the driver's default FCF record at FCF index 0 now. This 3206 * is phase 1 implementation that support FCF index 0 and driver 3207 * defaults. 3208 */ 3209 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3210 fcf_record = kzalloc(sizeof(struct fcf_record), 3211 GFP_KERNEL); 3212 if (unlikely(!fcf_record)) { 3213 lpfc_printf_log(phba, KERN_ERR, 3214 LOG_MBOX | LOG_SLI, 3215 "2554 Could not allocate memory for " 3216 "fcf record\n"); 3217 rc = -ENODEV; 3218 goto out; 3219 } 3220 3221 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3222 LPFC_FCOE_FCF_DEF_INDEX); 3223 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3224 if (unlikely(rc)) { 3225 lpfc_printf_log(phba, KERN_ERR, 3226 LOG_MBOX | LOG_SLI, 3227 "2013 Could not manually add FCF " 3228 "record 0, status %d\n", rc); 3229 rc = -ENODEV; 3230 kfree(fcf_record); 3231 goto out; 3232 } 3233 kfree(fcf_record); 3234 } 3235 /* 3236 * The driver is expected to do FIP/FCF. Call the port 3237 * and get the FCF Table. 3238 */ 3239 spin_lock_irq(&phba->hbalock); 3240 if (phba->hba_flag & FCF_TS_INPROG) { 3241 spin_unlock_irq(&phba->hbalock); 3242 return; 3243 } 3244 /* This is the initial FCF discovery scan */ 3245 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3246 spin_unlock_irq(&phba->hbalock); 3247 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3248 "2778 Start FCF table scan at linkup\n"); 3249 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3250 LPFC_FCOE_FCF_GET_FIRST); 3251 if (rc) { 3252 spin_lock_irq(&phba->hbalock); 3253 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3254 spin_unlock_irq(&phba->hbalock); 3255 goto out; 3256 } 3257 /* Reset FCF roundrobin bmask for new discovery */ 3258 lpfc_sli4_clear_fcf_rr_bmask(phba); 3259 } 3260 3261 return; 3262 out: 3263 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3264 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3265 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3266 vport->port_state, sparam_mbox, cfglink_mbox); 3267 lpfc_issue_clear_la(phba, vport); 3268 return; 3269 } 3270 3271 static void 3272 lpfc_enable_la(struct lpfc_hba *phba) 3273 { 3274 uint32_t control; 3275 struct lpfc_sli *psli = &phba->sli; 3276 spin_lock_irq(&phba->hbalock); 3277 psli->sli_flag |= LPFC_PROCESS_LA; 3278 if (phba->sli_rev <= LPFC_SLI_REV3) { 3279 control = readl(phba->HCregaddr); 3280 control |= HC_LAINT_ENA; 3281 writel(control, phba->HCregaddr); 3282 readl(phba->HCregaddr); /* flush */ 3283 } 3284 spin_unlock_irq(&phba->hbalock); 3285 } 3286 3287 static void 3288 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3289 { 3290 lpfc_linkdown(phba); 3291 lpfc_enable_la(phba); 3292 lpfc_unregister_unused_fcf(phba); 3293 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3294 } 3295 3296 3297 /* 3298 * This routine handles processing a READ_TOPOLOGY mailbox 3299 * command upon completion. It is setup in the LPFC_MBOXQ 3300 * as the completion routine when the command is 3301 * handed off to the SLI layer. SLI4 only. 3302 */ 3303 void 3304 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3305 { 3306 struct lpfc_vport *vport = pmb->vport; 3307 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3308 struct lpfc_mbx_read_top *la; 3309 struct lpfc_sli_ring *pring; 3310 MAILBOX_t *mb = &pmb->u.mb; 3311 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3312 3313 /* Unblock ELS traffic */ 3314 pring = lpfc_phba_elsring(phba); 3315 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3316 3317 /* Check for error */ 3318 if (mb->mbxStatus) { 3319 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3320 "1307 READ_LA mbox error x%x state x%x\n", 3321 mb->mbxStatus, vport->port_state); 3322 lpfc_mbx_issue_link_down(phba); 3323 phba->link_state = LPFC_HBA_ERROR; 3324 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3325 } 3326 3327 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3328 3329 memcpy(&phba->alpa_map[0], mp->virt, 128); 3330 3331 spin_lock_irq(shost->host_lock); 3332 if (bf_get(lpfc_mbx_read_top_pb, la)) 3333 vport->fc_flag |= FC_BYPASSED_MODE; 3334 else 3335 vport->fc_flag &= ~FC_BYPASSED_MODE; 3336 spin_unlock_irq(shost->host_lock); 3337 3338 if (phba->fc_eventTag <= la->eventTag) { 3339 phba->fc_stat.LinkMultiEvent++; 3340 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3341 if (phba->fc_eventTag != 0) 3342 lpfc_linkdown(phba); 3343 } 3344 3345 phba->fc_eventTag = la->eventTag; 3346 if (phba->sli_rev < LPFC_SLI_REV4) { 3347 spin_lock_irq(&phba->hbalock); 3348 if (bf_get(lpfc_mbx_read_top_mm, la)) 3349 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3350 else 3351 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3352 spin_unlock_irq(&phba->hbalock); 3353 } 3354 3355 phba->link_events++; 3356 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3357 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3358 phba->fc_stat.LinkUp++; 3359 if (phba->link_flag & LS_LOOPBACK_MODE) { 3360 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3361 "1306 Link Up Event in loop back mode " 3362 "x%x received Data: x%x x%x x%x x%x\n", 3363 la->eventTag, phba->fc_eventTag, 3364 bf_get(lpfc_mbx_read_top_alpa_granted, 3365 la), 3366 bf_get(lpfc_mbx_read_top_link_spd, la), 3367 phba->alpa_map[0]); 3368 } else { 3369 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3370 "1303 Link Up Event x%x received " 3371 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3372 la->eventTag, phba->fc_eventTag, 3373 bf_get(lpfc_mbx_read_top_alpa_granted, 3374 la), 3375 bf_get(lpfc_mbx_read_top_link_spd, la), 3376 phba->alpa_map[0], 3377 bf_get(lpfc_mbx_read_top_mm, la), 3378 bf_get(lpfc_mbx_read_top_fa, la), 3379 phba->wait_4_mlo_maint_flg); 3380 } 3381 lpfc_mbx_process_link_up(phba, la); 3382 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3383 LPFC_ATT_LINK_DOWN) { 3384 phba->fc_stat.LinkDown++; 3385 if (phba->link_flag & LS_LOOPBACK_MODE) 3386 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3387 "1308 Link Down Event in loop back mode " 3388 "x%x received " 3389 "Data: x%x x%x x%x\n", 3390 la->eventTag, phba->fc_eventTag, 3391 phba->pport->port_state, vport->fc_flag); 3392 else 3393 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3394 "1305 Link Down Event x%x received " 3395 "Data: x%x x%x x%x x%x x%x\n", 3396 la->eventTag, phba->fc_eventTag, 3397 phba->pport->port_state, vport->fc_flag, 3398 bf_get(lpfc_mbx_read_top_mm, la), 3399 bf_get(lpfc_mbx_read_top_fa, la)); 3400 lpfc_mbx_issue_link_down(phba); 3401 } 3402 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) && 3403 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) { 3404 if (phba->link_state != LPFC_LINK_DOWN) { 3405 phba->fc_stat.LinkDown++; 3406 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3407 "1312 Link Down Event x%x received " 3408 "Data: x%x x%x x%x\n", 3409 la->eventTag, phba->fc_eventTag, 3410 phba->pport->port_state, vport->fc_flag); 3411 lpfc_mbx_issue_link_down(phba); 3412 } else 3413 lpfc_enable_la(phba); 3414 3415 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3416 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3417 "Data: x%x x%x x%x\n", 3418 la->eventTag, phba->fc_eventTag, 3419 phba->pport->port_state, vport->fc_flag); 3420 /* 3421 * The cmnd that triggered this will be waiting for this 3422 * signal. 3423 */ 3424 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3425 if (phba->wait_4_mlo_maint_flg) { 3426 phba->wait_4_mlo_maint_flg = 0; 3427 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3428 } 3429 } 3430 3431 if ((phba->sli_rev < LPFC_SLI_REV4) && 3432 bf_get(lpfc_mbx_read_top_fa, la)) { 3433 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3434 lpfc_issue_clear_la(phba, vport); 3435 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3436 "1311 fa %d\n", 3437 bf_get(lpfc_mbx_read_top_fa, la)); 3438 } 3439 3440 lpfc_mbx_cmpl_read_topology_free_mbuf: 3441 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3442 kfree(mp); 3443 mempool_free(pmb, phba->mbox_mem_pool); 3444 return; 3445 } 3446 3447 /* 3448 * This routine handles processing a REG_LOGIN mailbox 3449 * command upon completion. It is setup in the LPFC_MBOXQ 3450 * as the completion routine when the command is 3451 * handed off to the SLI layer. 3452 */ 3453 void 3454 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3455 { 3456 struct lpfc_vport *vport = pmb->vport; 3457 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3458 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3459 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3460 3461 pmb->context1 = NULL; 3462 pmb->context2 = NULL; 3463 3464 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3465 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3466 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3467 kref_read(&ndlp->kref), 3468 ndlp->nlp_usg_map, ndlp); 3469 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3470 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3471 3472 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3473 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3474 /* We rcvd a rscn after issuing this 3475 * mbox reg login, we may have cycled 3476 * back through the state and be 3477 * back at reg login state so this 3478 * mbox needs to be ignored becase 3479 * there is another reg login in 3480 * process. 3481 */ 3482 spin_lock_irq(shost->host_lock); 3483 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3484 spin_unlock_irq(shost->host_lock); 3485 3486 /* 3487 * We cannot leave the RPI registered because 3488 * if we go thru discovery again for this ndlp 3489 * a subsequent REG_RPI will fail. 3490 */ 3491 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3492 lpfc_unreg_rpi(vport, ndlp); 3493 } 3494 3495 /* Call state machine */ 3496 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3497 3498 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3499 kfree(mp); 3500 mempool_free(pmb, phba->mbox_mem_pool); 3501 /* decrement the node reference count held for this callback 3502 * function. 3503 */ 3504 lpfc_nlp_put(ndlp); 3505 3506 return; 3507 } 3508 3509 static void 3510 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3511 { 3512 MAILBOX_t *mb = &pmb->u.mb; 3513 struct lpfc_vport *vport = pmb->vport; 3514 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3515 3516 switch (mb->mbxStatus) { 3517 case 0x0011: 3518 case 0x0020: 3519 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3520 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3521 mb->mbxStatus); 3522 break; 3523 /* If VPI is busy, reset the HBA */ 3524 case 0x9700: 3525 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3526 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3527 vport->vpi, mb->mbxStatus); 3528 if (!(phba->pport->load_flag & FC_UNLOADING)) 3529 lpfc_workq_post_event(phba, NULL, NULL, 3530 LPFC_EVT_RESET_HBA); 3531 } 3532 spin_lock_irq(shost->host_lock); 3533 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3534 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3535 spin_unlock_irq(shost->host_lock); 3536 vport->unreg_vpi_cmpl = VPORT_OK; 3537 mempool_free(pmb, phba->mbox_mem_pool); 3538 lpfc_cleanup_vports_rrqs(vport, NULL); 3539 /* 3540 * This shost reference might have been taken at the beginning of 3541 * lpfc_vport_delete() 3542 */ 3543 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3544 scsi_host_put(shost); 3545 } 3546 3547 int 3548 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3549 { 3550 struct lpfc_hba *phba = vport->phba; 3551 LPFC_MBOXQ_t *mbox; 3552 int rc; 3553 3554 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3555 if (!mbox) 3556 return 1; 3557 3558 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3559 mbox->vport = vport; 3560 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3561 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3562 if (rc == MBX_NOT_FINISHED) { 3563 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3564 "1800 Could not issue unreg_vpi\n"); 3565 mempool_free(mbox, phba->mbox_mem_pool); 3566 vport->unreg_vpi_cmpl = VPORT_ERROR; 3567 return rc; 3568 } 3569 return 0; 3570 } 3571 3572 static void 3573 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3574 { 3575 struct lpfc_vport *vport = pmb->vport; 3576 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3577 MAILBOX_t *mb = &pmb->u.mb; 3578 3579 switch (mb->mbxStatus) { 3580 case 0x0011: 3581 case 0x9601: 3582 case 0x9602: 3583 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3584 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3585 mb->mbxStatus); 3586 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3587 spin_lock_irq(shost->host_lock); 3588 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3589 spin_unlock_irq(shost->host_lock); 3590 vport->fc_myDID = 0; 3591 3592 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3593 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3594 if (phba->nvmet_support) 3595 lpfc_nvmet_update_targetport(phba); 3596 else 3597 lpfc_nvme_update_localport(vport); 3598 } 3599 goto out; 3600 } 3601 3602 spin_lock_irq(shost->host_lock); 3603 vport->vpi_state |= LPFC_VPI_REGISTERED; 3604 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3605 spin_unlock_irq(shost->host_lock); 3606 vport->num_disc_nodes = 0; 3607 /* go thru NPR list and issue ELS PLOGIs */ 3608 if (vport->fc_npr_cnt) 3609 lpfc_els_disc_plogi(vport); 3610 3611 if (!vport->num_disc_nodes) { 3612 spin_lock_irq(shost->host_lock); 3613 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3614 spin_unlock_irq(shost->host_lock); 3615 lpfc_can_disctmo(vport); 3616 } 3617 vport->port_state = LPFC_VPORT_READY; 3618 3619 out: 3620 mempool_free(pmb, phba->mbox_mem_pool); 3621 return; 3622 } 3623 3624 /** 3625 * lpfc_create_static_vport - Read HBA config region to create static vports. 3626 * @phba: pointer to lpfc hba data structure. 3627 * 3628 * This routine issue a DUMP mailbox command for config region 22 to get 3629 * the list of static vports to be created. The function create vports 3630 * based on the information returned from the HBA. 3631 **/ 3632 void 3633 lpfc_create_static_vport(struct lpfc_hba *phba) 3634 { 3635 LPFC_MBOXQ_t *pmb = NULL; 3636 MAILBOX_t *mb; 3637 struct static_vport_info *vport_info; 3638 int mbx_wait_rc = 0, i; 3639 struct fc_vport_identifiers vport_id; 3640 struct fc_vport *new_fc_vport; 3641 struct Scsi_Host *shost; 3642 struct lpfc_vport *vport; 3643 uint16_t offset = 0; 3644 uint8_t *vport_buff; 3645 struct lpfc_dmabuf *mp; 3646 uint32_t byte_count = 0; 3647 3648 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3649 if (!pmb) { 3650 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3651 "0542 lpfc_create_static_vport failed to" 3652 " allocate mailbox memory\n"); 3653 return; 3654 } 3655 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3656 mb = &pmb->u.mb; 3657 3658 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3659 if (!vport_info) { 3660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3661 "0543 lpfc_create_static_vport failed to" 3662 " allocate vport_info\n"); 3663 mempool_free(pmb, phba->mbox_mem_pool); 3664 return; 3665 } 3666 3667 vport_buff = (uint8_t *) vport_info; 3668 do { 3669 /* free dma buffer from previous round */ 3670 if (pmb->context1) { 3671 mp = (struct lpfc_dmabuf *)pmb->context1; 3672 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3673 kfree(mp); 3674 } 3675 if (lpfc_dump_static_vport(phba, pmb, offset)) 3676 goto out; 3677 3678 pmb->vport = phba->pport; 3679 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3680 LPFC_MBOX_TMO); 3681 3682 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3683 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3684 "0544 lpfc_create_static_vport failed to" 3685 " issue dump mailbox command ret 0x%x " 3686 "status 0x%x\n", 3687 mbx_wait_rc, mb->mbxStatus); 3688 goto out; 3689 } 3690 3691 if (phba->sli_rev == LPFC_SLI_REV4) { 3692 byte_count = pmb->u.mqe.un.mb_words[5]; 3693 mp = (struct lpfc_dmabuf *)pmb->context1; 3694 if (byte_count > sizeof(struct static_vport_info) - 3695 offset) 3696 byte_count = sizeof(struct static_vport_info) 3697 - offset; 3698 memcpy(vport_buff + offset, mp->virt, byte_count); 3699 offset += byte_count; 3700 } else { 3701 if (mb->un.varDmp.word_cnt > 3702 sizeof(struct static_vport_info) - offset) 3703 mb->un.varDmp.word_cnt = 3704 sizeof(struct static_vport_info) 3705 - offset; 3706 byte_count = mb->un.varDmp.word_cnt; 3707 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3708 vport_buff + offset, 3709 byte_count); 3710 3711 offset += byte_count; 3712 } 3713 3714 } while (byte_count && 3715 offset < sizeof(struct static_vport_info)); 3716 3717 3718 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3719 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3720 != VPORT_INFO_REV)) { 3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3722 "0545 lpfc_create_static_vport bad" 3723 " information header 0x%x 0x%x\n", 3724 le32_to_cpu(vport_info->signature), 3725 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3726 3727 goto out; 3728 } 3729 3730 shost = lpfc_shost_from_vport(phba->pport); 3731 3732 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3733 memset(&vport_id, 0, sizeof(vport_id)); 3734 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3735 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3736 if (!vport_id.port_name || !vport_id.node_name) 3737 continue; 3738 3739 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3740 vport_id.vport_type = FC_PORTTYPE_NPIV; 3741 vport_id.disable = false; 3742 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3743 3744 if (!new_fc_vport) { 3745 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3746 "0546 lpfc_create_static_vport failed to" 3747 " create vport\n"); 3748 continue; 3749 } 3750 3751 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3752 vport->vport_flag |= STATIC_VPORT; 3753 } 3754 3755 out: 3756 kfree(vport_info); 3757 if (mbx_wait_rc != MBX_TIMEOUT) { 3758 if (pmb->context1) { 3759 mp = (struct lpfc_dmabuf *)pmb->context1; 3760 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3761 kfree(mp); 3762 } 3763 mempool_free(pmb, phba->mbox_mem_pool); 3764 } 3765 3766 return; 3767 } 3768 3769 /* 3770 * This routine handles processing a Fabric REG_LOGIN mailbox 3771 * command upon completion. It is setup in the LPFC_MBOXQ 3772 * as the completion routine when the command is 3773 * handed off to the SLI layer. 3774 */ 3775 void 3776 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3777 { 3778 struct lpfc_vport *vport = pmb->vport; 3779 MAILBOX_t *mb = &pmb->u.mb; 3780 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3781 struct lpfc_nodelist *ndlp; 3782 struct Scsi_Host *shost; 3783 3784 ndlp = (struct lpfc_nodelist *) pmb->context2; 3785 pmb->context1 = NULL; 3786 pmb->context2 = NULL; 3787 3788 if (mb->mbxStatus) { 3789 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3790 "0258 Register Fabric login error: 0x%x\n", 3791 mb->mbxStatus); 3792 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3793 kfree(mp); 3794 mempool_free(pmb, phba->mbox_mem_pool); 3795 3796 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3797 /* FLOGI failed, use loop map to make discovery list */ 3798 lpfc_disc_list_loopmap(vport); 3799 3800 /* Start discovery */ 3801 lpfc_disc_start(vport); 3802 /* Decrement the reference count to ndlp after the 3803 * reference to the ndlp are done. 3804 */ 3805 lpfc_nlp_put(ndlp); 3806 return; 3807 } 3808 3809 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3810 /* Decrement the reference count to ndlp after the reference 3811 * to the ndlp are done. 3812 */ 3813 lpfc_nlp_put(ndlp); 3814 return; 3815 } 3816 3817 if (phba->sli_rev < LPFC_SLI_REV4) 3818 ndlp->nlp_rpi = mb->un.varWords[0]; 3819 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3820 ndlp->nlp_type |= NLP_FABRIC; 3821 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3822 3823 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3824 /* when physical port receive logo donot start 3825 * vport discovery */ 3826 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3827 lpfc_start_fdiscs(phba); 3828 else { 3829 shost = lpfc_shost_from_vport(vport); 3830 spin_lock_irq(shost->host_lock); 3831 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3832 spin_unlock_irq(shost->host_lock); 3833 } 3834 lpfc_do_scr_ns_plogi(phba, vport); 3835 } 3836 3837 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3838 kfree(mp); 3839 mempool_free(pmb, phba->mbox_mem_pool); 3840 3841 /* Drop the reference count from the mbox at the end after 3842 * all the current reference to the ndlp have been done. 3843 */ 3844 lpfc_nlp_put(ndlp); 3845 return; 3846 } 3847 3848 /* 3849 * This routine will issue a GID_FT for each FC4 Type supported 3850 * by the driver. ALL GID_FTs must complete before discovery is started. 3851 */ 3852 int 3853 lpfc_issue_gidft(struct lpfc_vport *vport) 3854 { 3855 struct lpfc_hba *phba = vport->phba; 3856 3857 /* Good status, issue CT Request to NameServer */ 3858 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3859 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3860 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3861 /* Cannot issue NameServer FCP Query, so finish up 3862 * discovery 3863 */ 3864 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3865 "0604 %s FC TYPE %x %s\n", 3866 "Failed to issue GID_FT to ", 3867 FC_TYPE_FCP, 3868 "Finishing discovery."); 3869 return 0; 3870 } 3871 vport->gidft_inp++; 3872 } 3873 3874 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3875 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3876 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3877 /* Cannot issue NameServer NVME Query, so finish up 3878 * discovery 3879 */ 3880 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3881 "0605 %s FC_TYPE %x %s %d\n", 3882 "Failed to issue GID_FT to ", 3883 FC_TYPE_NVME, 3884 "Finishing discovery: gidftinp ", 3885 vport->gidft_inp); 3886 if (vport->gidft_inp == 0) 3887 return 0; 3888 } else 3889 vport->gidft_inp++; 3890 } 3891 return vport->gidft_inp; 3892 } 3893 3894 /* 3895 * This routine handles processing a NameServer REG_LOGIN mailbox 3896 * command upon completion. It is setup in the LPFC_MBOXQ 3897 * as the completion routine when the command is 3898 * handed off to the SLI layer. 3899 */ 3900 void 3901 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3902 { 3903 MAILBOX_t *mb = &pmb->u.mb; 3904 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3905 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3906 struct lpfc_vport *vport = pmb->vport; 3907 3908 pmb->context1 = NULL; 3909 pmb->context2 = NULL; 3910 vport->gidft_inp = 0; 3911 3912 if (mb->mbxStatus) { 3913 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3914 "0260 Register NameServer error: 0x%x\n", 3915 mb->mbxStatus); 3916 3917 out: 3918 /* decrement the node reference count held for this 3919 * callback function. 3920 */ 3921 lpfc_nlp_put(ndlp); 3922 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3923 kfree(mp); 3924 mempool_free(pmb, phba->mbox_mem_pool); 3925 3926 /* If no other thread is using the ndlp, free it */ 3927 lpfc_nlp_not_used(ndlp); 3928 3929 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3930 /* 3931 * RegLogin failed, use loop map to make discovery 3932 * list 3933 */ 3934 lpfc_disc_list_loopmap(vport); 3935 3936 /* Start discovery */ 3937 lpfc_disc_start(vport); 3938 return; 3939 } 3940 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3941 return; 3942 } 3943 3944 if (phba->sli_rev < LPFC_SLI_REV4) 3945 ndlp->nlp_rpi = mb->un.varWords[0]; 3946 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3947 ndlp->nlp_type |= NLP_FABRIC; 3948 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3949 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3950 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3951 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3952 kref_read(&ndlp->kref), 3953 ndlp->nlp_usg_map, ndlp); 3954 3955 if (vport->port_state < LPFC_VPORT_READY) { 3956 /* Link up discovery requires Fabric registration. */ 3957 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3958 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3959 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3960 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3961 3962 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3963 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 3964 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 3965 3966 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3967 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 3968 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 3969 FC_TYPE_NVME); 3970 3971 /* Issue SCR just before NameServer GID_FT Query */ 3972 lpfc_issue_els_scr(vport, SCR_DID, 0); 3973 } 3974 3975 vport->fc_ns_retry = 0; 3976 if (lpfc_issue_gidft(vport) == 0) 3977 goto out; 3978 3979 /* 3980 * At this point in time we may need to wait for multiple 3981 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 3982 * 3983 * decrement the node reference count held for this 3984 * callback function. 3985 */ 3986 lpfc_nlp_put(ndlp); 3987 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3988 kfree(mp); 3989 mempool_free(pmb, phba->mbox_mem_pool); 3990 3991 return; 3992 } 3993 3994 static void 3995 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3996 { 3997 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3998 struct fc_rport *rport; 3999 struct lpfc_rport_data *rdata; 4000 struct fc_rport_identifiers rport_ids; 4001 struct lpfc_hba *phba = vport->phba; 4002 4003 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4004 return; 4005 4006 /* Remote port has reappeared. Re-register w/ FC transport */ 4007 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4008 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4009 rport_ids.port_id = ndlp->nlp_DID; 4010 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4011 4012 /* 4013 * We leave our node pointer in rport->dd_data when we unregister a 4014 * FCP target port. But fc_remote_port_add zeros the space to which 4015 * rport->dd_data points. So, if we're reusing a previously 4016 * registered port, drop the reference that we took the last time we 4017 * registered the port. 4018 */ 4019 rport = ndlp->rport; 4020 if (rport) { 4021 rdata = rport->dd_data; 4022 /* break the link before dropping the ref */ 4023 ndlp->rport = NULL; 4024 if (rdata) { 4025 if (rdata->pnode == ndlp) 4026 lpfc_nlp_put(ndlp); 4027 rdata->pnode = NULL; 4028 } 4029 /* drop reference for earlier registeration */ 4030 put_device(&rport->dev); 4031 } 4032 4033 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4034 "rport add: did:x%x flg:x%x type x%x", 4035 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4036 4037 /* Don't add the remote port if unloading. */ 4038 if (vport->load_flag & FC_UNLOADING) 4039 return; 4040 4041 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4042 if (!rport || !get_device(&rport->dev)) { 4043 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4044 "Warning: fc_remote_port_add failed\n"); 4045 return; 4046 } 4047 4048 /* initialize static port data */ 4049 rport->maxframe_size = ndlp->nlp_maxframe; 4050 rport->supported_classes = ndlp->nlp_class_sup; 4051 rdata = rport->dd_data; 4052 rdata->pnode = lpfc_nlp_get(ndlp); 4053 4054 if (ndlp->nlp_type & NLP_FCP_TARGET) 4055 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4056 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4057 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4058 4059 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4060 fc_remote_port_rolechg(rport, rport_ids.roles); 4061 4062 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4063 "3183 rport register x%06x, rport %p role x%x\n", 4064 ndlp->nlp_DID, rport, rport_ids.roles); 4065 4066 if ((rport->scsi_target_id != -1) && 4067 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4068 ndlp->nlp_sid = rport->scsi_target_id; 4069 } 4070 return; 4071 } 4072 4073 static void 4074 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4075 { 4076 struct fc_rport *rport = ndlp->rport; 4077 struct lpfc_vport *vport = ndlp->vport; 4078 struct lpfc_hba *phba = vport->phba; 4079 4080 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4081 return; 4082 4083 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4084 "rport delete: did:x%x flg:x%x type x%x", 4085 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4086 4087 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4088 "3184 rport unregister x%06x, rport %p\n", 4089 ndlp->nlp_DID, rport); 4090 4091 fc_remote_port_delete(rport); 4092 4093 return; 4094 } 4095 4096 static void 4097 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4098 { 4099 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4100 4101 spin_lock_irq(shost->host_lock); 4102 switch (state) { 4103 case NLP_STE_UNUSED_NODE: 4104 vport->fc_unused_cnt += count; 4105 break; 4106 case NLP_STE_PLOGI_ISSUE: 4107 vport->fc_plogi_cnt += count; 4108 break; 4109 case NLP_STE_ADISC_ISSUE: 4110 vport->fc_adisc_cnt += count; 4111 break; 4112 case NLP_STE_REG_LOGIN_ISSUE: 4113 vport->fc_reglogin_cnt += count; 4114 break; 4115 case NLP_STE_PRLI_ISSUE: 4116 vport->fc_prli_cnt += count; 4117 break; 4118 case NLP_STE_UNMAPPED_NODE: 4119 vport->fc_unmap_cnt += count; 4120 break; 4121 case NLP_STE_MAPPED_NODE: 4122 vport->fc_map_cnt += count; 4123 break; 4124 case NLP_STE_NPR_NODE: 4125 if (vport->fc_npr_cnt == 0 && count == -1) 4126 vport->fc_npr_cnt = 0; 4127 else 4128 vport->fc_npr_cnt += count; 4129 break; 4130 } 4131 spin_unlock_irq(shost->host_lock); 4132 } 4133 4134 static void 4135 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4136 int old_state, int new_state) 4137 { 4138 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4139 struct lpfc_hba *phba = vport->phba; 4140 4141 if (new_state == NLP_STE_UNMAPPED_NODE) { 4142 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4143 ndlp->nlp_type |= NLP_FC_NODE; 4144 } 4145 if (new_state == NLP_STE_MAPPED_NODE) 4146 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4147 if (new_state == NLP_STE_NPR_NODE) 4148 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4149 4150 /* FCP and NVME Transport interface */ 4151 if ((old_state == NLP_STE_MAPPED_NODE || 4152 old_state == NLP_STE_UNMAPPED_NODE)) { 4153 if (ndlp->rport) { 4154 vport->phba->nport_event_cnt++; 4155 lpfc_unregister_remote_port(ndlp); 4156 } 4157 4158 /* Notify the NVME transport of this rport's loss */ 4159 if (((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4160 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) && 4161 (vport->phba->nvmet_support == 0) && 4162 ((ndlp->nlp_fc4_type & NLP_FC4_NVME) || 4163 (ndlp->nlp_DID == Fabric_DID))) { 4164 vport->phba->nport_event_cnt++; 4165 lpfc_nvme_unregister_port(vport, ndlp); 4166 } 4167 } 4168 4169 /* FCP and NVME Transport interfaces */ 4170 4171 if (new_state == NLP_STE_MAPPED_NODE || 4172 new_state == NLP_STE_UNMAPPED_NODE) { 4173 if ((ndlp->nlp_fc4_type & NLP_FC4_FCP) || 4174 (ndlp->nlp_DID == Fabric_DID)) { 4175 vport->phba->nport_event_cnt++; 4176 /* 4177 * Tell the fc transport about the port, if we haven't 4178 * already. If we have, and it's a scsi entity, be 4179 */ 4180 lpfc_register_remote_port(vport, ndlp); 4181 } 4182 /* Notify the NVME transport of this new rport. */ 4183 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4184 if (vport->phba->nvmet_support == 0) { 4185 /* Register this rport with the transport. 4186 * Initiators take the NDLP ref count in 4187 * the register. 4188 */ 4189 vport->phba->nport_event_cnt++; 4190 lpfc_nvme_register_port(vport, ndlp); 4191 } else { 4192 /* Just take an NDLP ref count since the 4193 * target does not register rports. 4194 */ 4195 lpfc_nlp_get(ndlp); 4196 } 4197 } 4198 } 4199 4200 if ((new_state == NLP_STE_MAPPED_NODE) && 4201 (vport->stat_data_enabled)) { 4202 /* 4203 * A new target is discovered, if there is no buffer for 4204 * statistical data collection allocate buffer. 4205 */ 4206 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4207 sizeof(struct lpfc_scsicmd_bkt), 4208 GFP_KERNEL); 4209 4210 if (!ndlp->lat_data) 4211 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4212 "0286 lpfc_nlp_state_cleanup failed to " 4213 "allocate statistical data buffer DID " 4214 "0x%x\n", ndlp->nlp_DID); 4215 } 4216 /* 4217 * If the node just added to Mapped list was an FCP target, 4218 * but the remote port registration failed or assigned a target 4219 * id outside the presentable range - move the node to the 4220 * Unmapped List. 4221 */ 4222 if ((new_state == NLP_STE_MAPPED_NODE) && 4223 (ndlp->nlp_type & NLP_FCP_TARGET) && 4224 (!ndlp->rport || 4225 ndlp->rport->scsi_target_id == -1 || 4226 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4227 spin_lock_irq(shost->host_lock); 4228 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4229 spin_unlock_irq(shost->host_lock); 4230 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4231 } 4232 } 4233 4234 static char * 4235 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4236 { 4237 static char *states[] = { 4238 [NLP_STE_UNUSED_NODE] = "UNUSED", 4239 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4240 [NLP_STE_ADISC_ISSUE] = "ADISC", 4241 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4242 [NLP_STE_PRLI_ISSUE] = "PRLI", 4243 [NLP_STE_LOGO_ISSUE] = "LOGO", 4244 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4245 [NLP_STE_MAPPED_NODE] = "MAPPED", 4246 [NLP_STE_NPR_NODE] = "NPR", 4247 }; 4248 4249 if (state < NLP_STE_MAX_STATE && states[state]) 4250 strlcpy(buffer, states[state], size); 4251 else 4252 snprintf(buffer, size, "unknown (%d)", state); 4253 return buffer; 4254 } 4255 4256 void 4257 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4258 int state) 4259 { 4260 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4261 int old_state = ndlp->nlp_state; 4262 char name1[16], name2[16]; 4263 4264 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4265 "0904 NPort state transition x%06x, %s -> %s\n", 4266 ndlp->nlp_DID, 4267 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4268 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4269 4270 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4271 "node statechg did:x%x old:%d ste:%d", 4272 ndlp->nlp_DID, old_state, state); 4273 4274 if (old_state == NLP_STE_NPR_NODE && 4275 state != NLP_STE_NPR_NODE) 4276 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4277 if (old_state == NLP_STE_UNMAPPED_NODE) { 4278 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4279 ndlp->nlp_type &= ~NLP_FC_NODE; 4280 } 4281 4282 if (list_empty(&ndlp->nlp_listp)) { 4283 spin_lock_irq(shost->host_lock); 4284 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4285 spin_unlock_irq(shost->host_lock); 4286 } else if (old_state) 4287 lpfc_nlp_counters(vport, old_state, -1); 4288 4289 ndlp->nlp_state = state; 4290 lpfc_nlp_counters(vport, state, 1); 4291 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4292 } 4293 4294 void 4295 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4296 { 4297 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4298 4299 if (list_empty(&ndlp->nlp_listp)) { 4300 spin_lock_irq(shost->host_lock); 4301 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4302 spin_unlock_irq(shost->host_lock); 4303 } 4304 } 4305 4306 void 4307 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4308 { 4309 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4310 4311 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4312 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4313 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4314 spin_lock_irq(shost->host_lock); 4315 list_del_init(&ndlp->nlp_listp); 4316 spin_unlock_irq(shost->host_lock); 4317 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4318 NLP_STE_UNUSED_NODE); 4319 } 4320 4321 static void 4322 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4323 { 4324 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4325 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4326 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4327 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4328 NLP_STE_UNUSED_NODE); 4329 } 4330 /** 4331 * lpfc_initialize_node - Initialize all fields of node object 4332 * @vport: Pointer to Virtual Port object. 4333 * @ndlp: Pointer to FC node object. 4334 * @did: FC_ID of the node. 4335 * 4336 * This function is always called when node object need to be initialized. 4337 * It initializes all the fields of the node object. Although the reference 4338 * to phba from @ndlp can be obtained indirectly through it's reference to 4339 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4340 * to the life-span of the @ndlp might go beyond the existence of @vport as 4341 * the final release of ndlp is determined by its reference count. And, the 4342 * operation on @ndlp needs the reference to phba. 4343 **/ 4344 static inline void 4345 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4346 uint32_t did) 4347 { 4348 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4349 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4350 setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 4351 (unsigned long)ndlp); 4352 ndlp->nlp_DID = did; 4353 ndlp->vport = vport; 4354 ndlp->phba = vport->phba; 4355 ndlp->nlp_sid = NLP_NO_SID; 4356 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4357 kref_init(&ndlp->kref); 4358 NLP_INT_NODE_ACT(ndlp); 4359 atomic_set(&ndlp->cmd_pending, 0); 4360 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4361 } 4362 4363 struct lpfc_nodelist * 4364 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4365 int state) 4366 { 4367 struct lpfc_hba *phba = vport->phba; 4368 uint32_t did; 4369 unsigned long flags; 4370 unsigned long *active_rrqs_xri_bitmap = NULL; 4371 4372 if (!ndlp) 4373 return NULL; 4374 4375 spin_lock_irqsave(&phba->ndlp_lock, flags); 4376 /* The ndlp should not be in memory free mode */ 4377 if (NLP_CHK_FREE_REQ(ndlp)) { 4378 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4379 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4380 "0277 lpfc_enable_node: ndlp:x%p " 4381 "usgmap:x%x refcnt:%d\n", 4382 (void *)ndlp, ndlp->nlp_usg_map, 4383 kref_read(&ndlp->kref)); 4384 return NULL; 4385 } 4386 /* The ndlp should not already be in active mode */ 4387 if (NLP_CHK_NODE_ACT(ndlp)) { 4388 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4389 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4390 "0278 lpfc_enable_node: ndlp:x%p " 4391 "usgmap:x%x refcnt:%d\n", 4392 (void *)ndlp, ndlp->nlp_usg_map, 4393 kref_read(&ndlp->kref)); 4394 return NULL; 4395 } 4396 4397 /* Keep the original DID */ 4398 did = ndlp->nlp_DID; 4399 if (phba->sli_rev == LPFC_SLI_REV4) 4400 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4401 4402 /* re-initialize ndlp except of ndlp linked list pointer */ 4403 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4404 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4405 lpfc_initialize_node(vport, ndlp, did); 4406 4407 if (phba->sli_rev == LPFC_SLI_REV4) 4408 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4409 4410 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4411 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4412 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4413 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4414 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4415 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4416 ndlp->nlp_flag, 4417 kref_read(&ndlp->kref), 4418 ndlp->nlp_usg_map, ndlp); 4419 } 4420 4421 4422 if (state != NLP_STE_UNUSED_NODE) 4423 lpfc_nlp_set_state(vport, ndlp, state); 4424 4425 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4426 "node enable: did:x%x", 4427 ndlp->nlp_DID, 0, 0); 4428 return ndlp; 4429 } 4430 4431 void 4432 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4433 { 4434 /* 4435 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4436 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4437 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4438 * until ALL other outstanding threads have completed. We check 4439 * that the ndlp not already in the UNUSED state before we proceed. 4440 */ 4441 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4442 return; 4443 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4444 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4445 lpfc_cleanup_vports_rrqs(vport, ndlp); 4446 lpfc_unreg_rpi(vport, ndlp); 4447 } 4448 4449 lpfc_nlp_put(ndlp); 4450 return; 4451 } 4452 4453 /* 4454 * Start / ReStart rescue timer for Discovery / RSCN handling 4455 */ 4456 void 4457 lpfc_set_disctmo(struct lpfc_vport *vport) 4458 { 4459 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4460 struct lpfc_hba *phba = vport->phba; 4461 uint32_t tmo; 4462 4463 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4464 /* For FAN, timeout should be greater than edtov */ 4465 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4466 } else { 4467 /* Normal discovery timeout should be > than ELS/CT timeout 4468 * FC spec states we need 3 * ratov for CT requests 4469 */ 4470 tmo = ((phba->fc_ratov * 3) + 3); 4471 } 4472 4473 4474 if (!timer_pending(&vport->fc_disctmo)) { 4475 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4476 "set disc timer: tmo:x%x state:x%x flg:x%x", 4477 tmo, vport->port_state, vport->fc_flag); 4478 } 4479 4480 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4481 spin_lock_irq(shost->host_lock); 4482 vport->fc_flag |= FC_DISC_TMO; 4483 spin_unlock_irq(shost->host_lock); 4484 4485 /* Start Discovery Timer state <hba_state> */ 4486 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4487 "0247 Start Discovery Timer state x%x " 4488 "Data: x%x x%lx x%x x%x\n", 4489 vport->port_state, tmo, 4490 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4491 vport->fc_adisc_cnt); 4492 4493 return; 4494 } 4495 4496 /* 4497 * Cancel rescue timer for Discovery / RSCN handling 4498 */ 4499 int 4500 lpfc_can_disctmo(struct lpfc_vport *vport) 4501 { 4502 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4503 unsigned long iflags; 4504 4505 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4506 "can disc timer: state:x%x rtry:x%x flg:x%x", 4507 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4508 4509 /* Turn off discovery timer if its running */ 4510 if (vport->fc_flag & FC_DISC_TMO) { 4511 spin_lock_irqsave(shost->host_lock, iflags); 4512 vport->fc_flag &= ~FC_DISC_TMO; 4513 spin_unlock_irqrestore(shost->host_lock, iflags); 4514 del_timer_sync(&vport->fc_disctmo); 4515 spin_lock_irqsave(&vport->work_port_lock, iflags); 4516 vport->work_port_events &= ~WORKER_DISC_TMO; 4517 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4518 } 4519 4520 /* Cancel Discovery Timer state <hba_state> */ 4521 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4522 "0248 Cancel Discovery Timer state x%x " 4523 "Data: x%x x%x x%x\n", 4524 vport->port_state, vport->fc_flag, 4525 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4526 return 0; 4527 } 4528 4529 /* 4530 * Check specified ring for outstanding IOCB on the SLI queue 4531 * Return true if iocb matches the specified nport 4532 */ 4533 int 4534 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4535 struct lpfc_sli_ring *pring, 4536 struct lpfc_iocbq *iocb, 4537 struct lpfc_nodelist *ndlp) 4538 { 4539 IOCB_t *icmd = &iocb->iocb; 4540 struct lpfc_vport *vport = ndlp->vport; 4541 4542 if (iocb->vport != vport) 4543 return 0; 4544 4545 if (pring->ringno == LPFC_ELS_RING) { 4546 switch (icmd->ulpCommand) { 4547 case CMD_GEN_REQUEST64_CR: 4548 if (iocb->context_un.ndlp == ndlp) 4549 return 1; 4550 case CMD_ELS_REQUEST64_CR: 4551 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4552 return 1; 4553 case CMD_XMIT_ELS_RSP64_CX: 4554 if (iocb->context1 == (uint8_t *) ndlp) 4555 return 1; 4556 } 4557 } else if (pring->ringno == LPFC_FCP_RING) { 4558 /* Skip match check if waiting to relogin to FCP target */ 4559 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4560 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4561 return 0; 4562 } 4563 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4564 return 1; 4565 } 4566 } 4567 return 0; 4568 } 4569 4570 static void 4571 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4572 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4573 struct list_head *dequeue_list) 4574 { 4575 struct lpfc_iocbq *iocb, *next_iocb; 4576 4577 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4578 /* Check to see if iocb matches the nport */ 4579 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4580 /* match, dequeue */ 4581 list_move_tail(&iocb->list, dequeue_list); 4582 } 4583 } 4584 4585 static void 4586 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4587 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4588 { 4589 struct lpfc_sli *psli = &phba->sli; 4590 uint32_t i; 4591 4592 spin_lock_irq(&phba->hbalock); 4593 for (i = 0; i < psli->num_rings; i++) 4594 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4595 dequeue_list); 4596 spin_unlock_irq(&phba->hbalock); 4597 } 4598 4599 static void 4600 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4601 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4602 { 4603 struct lpfc_sli_ring *pring; 4604 struct lpfc_queue *qp = NULL; 4605 4606 spin_lock_irq(&phba->hbalock); 4607 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4608 pring = qp->pring; 4609 if (!pring) 4610 continue; 4611 spin_lock(&pring->ring_lock); 4612 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4613 spin_unlock(&pring->ring_lock); 4614 } 4615 spin_unlock_irq(&phba->hbalock); 4616 } 4617 4618 /* 4619 * Free resources / clean up outstanding I/Os 4620 * associated with nlp_rpi in the LPFC_NODELIST entry. 4621 */ 4622 static int 4623 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4624 { 4625 LIST_HEAD(completions); 4626 4627 lpfc_fabric_abort_nport(ndlp); 4628 4629 /* 4630 * Everything that matches on txcmplq will be returned 4631 * by firmware with a no rpi error. 4632 */ 4633 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4634 if (phba->sli_rev != LPFC_SLI_REV4) 4635 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4636 else 4637 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4638 } 4639 4640 /* Cancel all the IOCBs from the completions list */ 4641 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4642 IOERR_SLI_ABORTED); 4643 4644 return 0; 4645 } 4646 4647 /** 4648 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4649 * @phba: Pointer to HBA context object. 4650 * @pmb: Pointer to mailbox object. 4651 * 4652 * This function will issue an ELS LOGO command after completing 4653 * the UNREG_RPI. 4654 **/ 4655 static void 4656 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4657 { 4658 struct lpfc_vport *vport = pmb->vport; 4659 struct lpfc_nodelist *ndlp; 4660 4661 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4662 if (!ndlp) 4663 return; 4664 lpfc_issue_els_logo(vport, ndlp, 0); 4665 mempool_free(pmb, phba->mbox_mem_pool); 4666 } 4667 4668 /* 4669 * Free rpi associated with LPFC_NODELIST entry. 4670 * This routine is called from lpfc_freenode(), when we are removing 4671 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4672 * LOGO that completes successfully, and we are waiting to PLOGI back 4673 * to the remote NPort. In addition, it is called after we receive 4674 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4675 * we are waiting to PLOGI back to the remote NPort. 4676 */ 4677 int 4678 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4679 { 4680 struct lpfc_hba *phba = vport->phba; 4681 LPFC_MBOXQ_t *mbox; 4682 int rc, acc_plogi = 1; 4683 uint16_t rpi; 4684 4685 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4686 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4687 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4688 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4689 "3366 RPI x%x needs to be " 4690 "unregistered nlp_flag x%x " 4691 "did x%x\n", 4692 ndlp->nlp_rpi, ndlp->nlp_flag, 4693 ndlp->nlp_DID); 4694 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4695 if (mbox) { 4696 /* SLI4 ports require the physical rpi value. */ 4697 rpi = ndlp->nlp_rpi; 4698 if (phba->sli_rev == LPFC_SLI_REV4) 4699 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4700 4701 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4702 mbox->vport = vport; 4703 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4704 mbox->context1 = ndlp; 4705 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4706 } else { 4707 if (phba->sli_rev == LPFC_SLI_REV4 && 4708 (!(vport->load_flag & FC_UNLOADING)) && 4709 (bf_get(lpfc_sli_intf_if_type, 4710 &phba->sli4_hba.sli_intf) == 4711 LPFC_SLI_INTF_IF_TYPE_2) && 4712 (kref_read(&ndlp->kref) > 0)) { 4713 mbox->context1 = lpfc_nlp_get(ndlp); 4714 mbox->mbox_cmpl = 4715 lpfc_sli4_unreg_rpi_cmpl_clr; 4716 /* 4717 * accept PLOGIs after unreg_rpi_cmpl 4718 */ 4719 acc_plogi = 0; 4720 } else 4721 mbox->mbox_cmpl = 4722 lpfc_sli_def_mbox_cmpl; 4723 } 4724 4725 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4726 if (rc == MBX_NOT_FINISHED) { 4727 mempool_free(mbox, phba->mbox_mem_pool); 4728 acc_plogi = 1; 4729 } 4730 } 4731 lpfc_no_rpi(phba, ndlp); 4732 4733 if (phba->sli_rev != LPFC_SLI_REV4) 4734 ndlp->nlp_rpi = 0; 4735 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4736 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4737 if (acc_plogi) 4738 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4739 return 1; 4740 } 4741 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4742 return 0; 4743 } 4744 4745 /** 4746 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4747 * @phba: pointer to lpfc hba data structure. 4748 * 4749 * This routine is invoked to unregister all the currently registered RPIs 4750 * to the HBA. 4751 **/ 4752 void 4753 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4754 { 4755 struct lpfc_vport **vports; 4756 struct lpfc_nodelist *ndlp; 4757 struct Scsi_Host *shost; 4758 int i; 4759 4760 vports = lpfc_create_vport_work_array(phba); 4761 if (!vports) { 4762 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4763 "2884 Vport array allocation failed \n"); 4764 return; 4765 } 4766 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4767 shost = lpfc_shost_from_vport(vports[i]); 4768 spin_lock_irq(shost->host_lock); 4769 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4770 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4771 /* The mempool_alloc might sleep */ 4772 spin_unlock_irq(shost->host_lock); 4773 lpfc_unreg_rpi(vports[i], ndlp); 4774 spin_lock_irq(shost->host_lock); 4775 } 4776 } 4777 spin_unlock_irq(shost->host_lock); 4778 } 4779 lpfc_destroy_vport_work_array(phba, vports); 4780 } 4781 4782 void 4783 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4784 { 4785 struct lpfc_hba *phba = vport->phba; 4786 LPFC_MBOXQ_t *mbox; 4787 int rc; 4788 4789 if (phba->sli_rev == LPFC_SLI_REV4) { 4790 lpfc_sli4_unreg_all_rpis(vport); 4791 return; 4792 } 4793 4794 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4795 if (mbox) { 4796 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4797 mbox); 4798 mbox->vport = vport; 4799 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4800 mbox->context1 = NULL; 4801 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4802 if (rc != MBX_TIMEOUT) 4803 mempool_free(mbox, phba->mbox_mem_pool); 4804 4805 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4806 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4807 "1836 Could not issue " 4808 "unreg_login(all_rpis) status %d\n", rc); 4809 } 4810 } 4811 4812 void 4813 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4814 { 4815 struct lpfc_hba *phba = vport->phba; 4816 LPFC_MBOXQ_t *mbox; 4817 int rc; 4818 4819 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4820 if (mbox) { 4821 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4822 mbox); 4823 mbox->vport = vport; 4824 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4825 mbox->context1 = NULL; 4826 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4827 if (rc != MBX_TIMEOUT) 4828 mempool_free(mbox, phba->mbox_mem_pool); 4829 4830 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4831 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4832 "1815 Could not issue " 4833 "unreg_did (default rpis) status %d\n", 4834 rc); 4835 } 4836 } 4837 4838 /* 4839 * Free resources associated with LPFC_NODELIST entry 4840 * so it can be freed. 4841 */ 4842 static int 4843 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4844 { 4845 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4846 struct lpfc_hba *phba = vport->phba; 4847 LPFC_MBOXQ_t *mb, *nextmb; 4848 struct lpfc_dmabuf *mp; 4849 4850 /* Cleanup node for NPort <nlp_DID> */ 4851 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4852 "0900 Cleanup node for NPort x%x " 4853 "Data: x%x x%x x%x\n", 4854 ndlp->nlp_DID, ndlp->nlp_flag, 4855 ndlp->nlp_state, ndlp->nlp_rpi); 4856 if (NLP_CHK_FREE_REQ(ndlp)) { 4857 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4858 "0280 lpfc_cleanup_node: ndlp:x%p " 4859 "usgmap:x%x refcnt:%d\n", 4860 (void *)ndlp, ndlp->nlp_usg_map, 4861 kref_read(&ndlp->kref)); 4862 lpfc_dequeue_node(vport, ndlp); 4863 } else { 4864 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4865 "0281 lpfc_cleanup_node: ndlp:x%p " 4866 "usgmap:x%x refcnt:%d\n", 4867 (void *)ndlp, ndlp->nlp_usg_map, 4868 kref_read(&ndlp->kref)); 4869 lpfc_disable_node(vport, ndlp); 4870 } 4871 4872 4873 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4874 4875 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4876 if ((mb = phba->sli.mbox_active)) { 4877 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4878 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4879 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4880 mb->context2 = NULL; 4881 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4882 } 4883 } 4884 4885 spin_lock_irq(&phba->hbalock); 4886 /* Cleanup REG_LOGIN completions which are not yet processed */ 4887 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4888 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4889 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4890 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4891 continue; 4892 4893 mb->context2 = NULL; 4894 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4895 } 4896 4897 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4898 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4899 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4900 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4901 mp = (struct lpfc_dmabuf *) (mb->context1); 4902 if (mp) { 4903 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4904 kfree(mp); 4905 } 4906 list_del(&mb->list); 4907 mempool_free(mb, phba->mbox_mem_pool); 4908 /* We shall not invoke the lpfc_nlp_put to decrement 4909 * the ndlp reference count as we are in the process 4910 * of lpfc_nlp_release. 4911 */ 4912 } 4913 } 4914 spin_unlock_irq(&phba->hbalock); 4915 4916 lpfc_els_abort(phba, ndlp); 4917 4918 spin_lock_irq(shost->host_lock); 4919 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4920 spin_unlock_irq(shost->host_lock); 4921 4922 ndlp->nlp_last_elscmd = 0; 4923 del_timer_sync(&ndlp->nlp_delayfunc); 4924 4925 list_del_init(&ndlp->els_retry_evt.evt_listp); 4926 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4927 lpfc_cleanup_vports_rrqs(vport, ndlp); 4928 lpfc_unreg_rpi(vport, ndlp); 4929 4930 return 0; 4931 } 4932 4933 /* 4934 * Check to see if we can free the nlp back to the freelist. 4935 * If we are in the middle of using the nlp in the discovery state 4936 * machine, defer the free till we reach the end of the state machine. 4937 */ 4938 static void 4939 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4940 { 4941 struct lpfc_hba *phba = vport->phba; 4942 struct lpfc_rport_data *rdata; 4943 struct fc_rport *rport; 4944 LPFC_MBOXQ_t *mbox; 4945 int rc; 4946 4947 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4948 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4949 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4950 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4951 /* For this case we need to cleanup the default rpi 4952 * allocated by the firmware. 4953 */ 4954 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4955 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4956 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4957 kref_read(&ndlp->kref), 4958 ndlp->nlp_usg_map, ndlp); 4959 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4960 != NULL) { 4961 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4962 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4963 if (rc) { 4964 mempool_free(mbox, phba->mbox_mem_pool); 4965 } 4966 else { 4967 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4968 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4969 mbox->vport = vport; 4970 mbox->context2 = ndlp; 4971 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4972 if (rc == MBX_NOT_FINISHED) { 4973 mempool_free(mbox, phba->mbox_mem_pool); 4974 } 4975 } 4976 } 4977 } 4978 lpfc_cleanup_node(vport, ndlp); 4979 4980 /* 4981 * ndlp->rport must be set to NULL before it reaches here 4982 * i.e. break rport/node link before doing lpfc_nlp_put for 4983 * registered rport and then drop the reference of rport. 4984 */ 4985 if (ndlp->rport) { 4986 /* 4987 * extra lpfc_nlp_put dropped the reference of ndlp 4988 * for registered rport so need to cleanup rport 4989 */ 4990 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4991 "0940 removed node x%p DID x%x " 4992 " rport not null %p\n", 4993 ndlp, ndlp->nlp_DID, ndlp->rport); 4994 rport = ndlp->rport; 4995 rdata = rport->dd_data; 4996 rdata->pnode = NULL; 4997 ndlp->rport = NULL; 4998 put_device(&rport->dev); 4999 } 5000 } 5001 5002 static int 5003 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5004 uint32_t did) 5005 { 5006 D_ID mydid, ndlpdid, matchdid; 5007 5008 if (did == Bcast_DID) 5009 return 0; 5010 5011 /* First check for Direct match */ 5012 if (ndlp->nlp_DID == did) 5013 return 1; 5014 5015 /* Next check for area/domain identically equals 0 match */ 5016 mydid.un.word = vport->fc_myDID; 5017 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5018 return 0; 5019 } 5020 5021 matchdid.un.word = did; 5022 ndlpdid.un.word = ndlp->nlp_DID; 5023 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5024 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5025 (mydid.un.b.area == matchdid.un.b.area)) { 5026 /* This code is supposed to match the ID 5027 * for a private loop device that is 5028 * connect to fl_port. But we need to 5029 * check that the port did not just go 5030 * from pt2pt to fabric or we could end 5031 * up matching ndlp->nlp_DID 000001 to 5032 * fabric DID 0x20101 5033 */ 5034 if ((ndlpdid.un.b.domain == 0) && 5035 (ndlpdid.un.b.area == 0)) { 5036 if (ndlpdid.un.b.id && 5037 vport->phba->fc_topology == 5038 LPFC_TOPOLOGY_LOOP) 5039 return 1; 5040 } 5041 return 0; 5042 } 5043 5044 matchdid.un.word = ndlp->nlp_DID; 5045 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5046 (mydid.un.b.area == ndlpdid.un.b.area)) { 5047 if ((matchdid.un.b.domain == 0) && 5048 (matchdid.un.b.area == 0)) { 5049 if (matchdid.un.b.id) 5050 return 1; 5051 } 5052 } 5053 } 5054 return 0; 5055 } 5056 5057 /* Search for a nodelist entry */ 5058 static struct lpfc_nodelist * 5059 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5060 { 5061 struct lpfc_nodelist *ndlp; 5062 uint32_t data1; 5063 5064 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5065 if (lpfc_matchdid(vport, ndlp, did)) { 5066 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5067 ((uint32_t) ndlp->nlp_xri << 16) | 5068 ((uint32_t) ndlp->nlp_type << 8) | 5069 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5070 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5071 "0929 FIND node DID " 5072 "Data: x%p x%x x%x x%x %p\n", 5073 ndlp, ndlp->nlp_DID, 5074 ndlp->nlp_flag, data1, 5075 ndlp->active_rrqs_xri_bitmap); 5076 return ndlp; 5077 } 5078 } 5079 5080 /* FIND node did <did> NOT FOUND */ 5081 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5082 "0932 FIND node did x%x NOT FOUND.\n", did); 5083 return NULL; 5084 } 5085 5086 struct lpfc_nodelist * 5087 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5088 { 5089 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5090 struct lpfc_nodelist *ndlp; 5091 unsigned long iflags; 5092 5093 spin_lock_irqsave(shost->host_lock, iflags); 5094 ndlp = __lpfc_findnode_did(vport, did); 5095 spin_unlock_irqrestore(shost->host_lock, iflags); 5096 return ndlp; 5097 } 5098 5099 struct lpfc_nodelist * 5100 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5101 { 5102 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5103 struct lpfc_nodelist *ndlp; 5104 5105 ndlp = lpfc_findnode_did(vport, did); 5106 if (!ndlp) { 5107 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5108 lpfc_rscn_payload_check(vport, did) == 0) 5109 return NULL; 5110 ndlp = (struct lpfc_nodelist *) 5111 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 5112 if (!ndlp) 5113 return NULL; 5114 lpfc_nlp_init(vport, ndlp, did); 5115 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5116 if (vport->phba->nvmet_support) 5117 return ndlp; 5118 spin_lock_irq(shost->host_lock); 5119 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5120 spin_unlock_irq(shost->host_lock); 5121 return ndlp; 5122 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5123 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5124 if (!ndlp) 5125 return NULL; 5126 if (vport->phba->nvmet_support) 5127 return ndlp; 5128 spin_lock_irq(shost->host_lock); 5129 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5130 spin_unlock_irq(shost->host_lock); 5131 return ndlp; 5132 } 5133 5134 if ((vport->fc_flag & FC_RSCN_MODE) && 5135 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5136 if (lpfc_rscn_payload_check(vport, did)) { 5137 /* If we've already received a PLOGI from this NPort 5138 * we don't need to try to discover it again. 5139 */ 5140 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5141 return NULL; 5142 5143 /* Since this node is marked for discovery, 5144 * delay timeout is not needed. 5145 */ 5146 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5147 if (vport->phba->nvmet_support) 5148 return ndlp; 5149 spin_lock_irq(shost->host_lock); 5150 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5151 spin_unlock_irq(shost->host_lock); 5152 } else 5153 ndlp = NULL; 5154 } else { 5155 /* If we've already received a PLOGI from this NPort, 5156 * or we are already in the process of discovery on it, 5157 * we don't need to try to discover it again. 5158 */ 5159 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5160 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5161 ndlp->nlp_flag & NLP_RCV_PLOGI) 5162 return NULL; 5163 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5164 if (vport->phba->nvmet_support) 5165 return ndlp; 5166 spin_lock_irq(shost->host_lock); 5167 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5168 spin_unlock_irq(shost->host_lock); 5169 } 5170 return ndlp; 5171 } 5172 5173 /* Build a list of nodes to discover based on the loopmap */ 5174 void 5175 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5176 { 5177 struct lpfc_hba *phba = vport->phba; 5178 int j; 5179 uint32_t alpa, index; 5180 5181 if (!lpfc_is_link_up(phba)) 5182 return; 5183 5184 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5185 return; 5186 5187 /* Check for loop map present or not */ 5188 if (phba->alpa_map[0]) { 5189 for (j = 1; j <= phba->alpa_map[0]; j++) { 5190 alpa = phba->alpa_map[j]; 5191 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5192 continue; 5193 lpfc_setup_disc_node(vport, alpa); 5194 } 5195 } else { 5196 /* No alpamap, so try all alpa's */ 5197 for (j = 0; j < FC_MAXLOOP; j++) { 5198 /* If cfg_scan_down is set, start from highest 5199 * ALPA (0xef) to lowest (0x1). 5200 */ 5201 if (vport->cfg_scan_down) 5202 index = j; 5203 else 5204 index = FC_MAXLOOP - j - 1; 5205 alpa = lpfcAlpaArray[index]; 5206 if ((vport->fc_myDID & 0xff) == alpa) 5207 continue; 5208 lpfc_setup_disc_node(vport, alpa); 5209 } 5210 } 5211 return; 5212 } 5213 5214 /* SLI3 only */ 5215 void 5216 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5217 { 5218 LPFC_MBOXQ_t *mbox; 5219 struct lpfc_sli *psli = &phba->sli; 5220 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5221 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5222 int rc; 5223 5224 /* 5225 * if it's not a physical port or if we already send 5226 * clear_la then don't send it. 5227 */ 5228 if ((phba->link_state >= LPFC_CLEAR_LA) || 5229 (vport->port_type != LPFC_PHYSICAL_PORT) || 5230 (phba->sli_rev == LPFC_SLI_REV4)) 5231 return; 5232 5233 /* Link up discovery */ 5234 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5235 phba->link_state = LPFC_CLEAR_LA; 5236 lpfc_clear_la(phba, mbox); 5237 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5238 mbox->vport = vport; 5239 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5240 if (rc == MBX_NOT_FINISHED) { 5241 mempool_free(mbox, phba->mbox_mem_pool); 5242 lpfc_disc_flush_list(vport); 5243 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5244 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5245 phba->link_state = LPFC_HBA_ERROR; 5246 } 5247 } 5248 } 5249 5250 /* Reg_vpi to tell firmware to resume normal operations */ 5251 void 5252 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5253 { 5254 LPFC_MBOXQ_t *regvpimbox; 5255 5256 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5257 if (regvpimbox) { 5258 lpfc_reg_vpi(vport, regvpimbox); 5259 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5260 regvpimbox->vport = vport; 5261 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5262 == MBX_NOT_FINISHED) { 5263 mempool_free(regvpimbox, phba->mbox_mem_pool); 5264 } 5265 } 5266 } 5267 5268 /* Start Link up / RSCN discovery on NPR nodes */ 5269 void 5270 lpfc_disc_start(struct lpfc_vport *vport) 5271 { 5272 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5273 struct lpfc_hba *phba = vport->phba; 5274 uint32_t num_sent; 5275 uint32_t clear_la_pending; 5276 5277 if (!lpfc_is_link_up(phba)) { 5278 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5279 "3315 Link is not up %x\n", 5280 phba->link_state); 5281 return; 5282 } 5283 5284 if (phba->link_state == LPFC_CLEAR_LA) 5285 clear_la_pending = 1; 5286 else 5287 clear_la_pending = 0; 5288 5289 if (vport->port_state < LPFC_VPORT_READY) 5290 vport->port_state = LPFC_DISC_AUTH; 5291 5292 lpfc_set_disctmo(vport); 5293 5294 vport->fc_prevDID = vport->fc_myDID; 5295 vport->num_disc_nodes = 0; 5296 5297 /* Start Discovery state <hba_state> */ 5298 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5299 "0202 Start Discovery hba state x%x " 5300 "Data: x%x x%x x%x\n", 5301 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5302 vport->fc_adisc_cnt); 5303 5304 /* First do ADISCs - if any */ 5305 num_sent = lpfc_els_disc_adisc(vport); 5306 5307 if (num_sent) 5308 return; 5309 5310 /* Register the VPI for SLI3, NPIV only. */ 5311 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5312 !(vport->fc_flag & FC_PT2PT) && 5313 !(vport->fc_flag & FC_RSCN_MODE) && 5314 (phba->sli_rev < LPFC_SLI_REV4)) { 5315 lpfc_issue_clear_la(phba, vport); 5316 lpfc_issue_reg_vpi(phba, vport); 5317 return; 5318 } 5319 5320 /* 5321 * For SLI2, we need to set port_state to READY and continue 5322 * discovery. 5323 */ 5324 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5325 /* If we get here, there is nothing to ADISC */ 5326 lpfc_issue_clear_la(phba, vport); 5327 5328 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5329 vport->num_disc_nodes = 0; 5330 /* go thru NPR nodes and issue ELS PLOGIs */ 5331 if (vport->fc_npr_cnt) 5332 lpfc_els_disc_plogi(vport); 5333 5334 if (!vport->num_disc_nodes) { 5335 spin_lock_irq(shost->host_lock); 5336 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5337 spin_unlock_irq(shost->host_lock); 5338 lpfc_can_disctmo(vport); 5339 } 5340 } 5341 vport->port_state = LPFC_VPORT_READY; 5342 } else { 5343 /* Next do PLOGIs - if any */ 5344 num_sent = lpfc_els_disc_plogi(vport); 5345 5346 if (num_sent) 5347 return; 5348 5349 if (vport->fc_flag & FC_RSCN_MODE) { 5350 /* Check to see if more RSCNs came in while we 5351 * were processing this one. 5352 */ 5353 if ((vport->fc_rscn_id_cnt == 0) && 5354 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5355 spin_lock_irq(shost->host_lock); 5356 vport->fc_flag &= ~FC_RSCN_MODE; 5357 spin_unlock_irq(shost->host_lock); 5358 lpfc_can_disctmo(vport); 5359 } else 5360 lpfc_els_handle_rscn(vport); 5361 } 5362 } 5363 return; 5364 } 5365 5366 /* 5367 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5368 * ring the match the sppecified nodelist. 5369 */ 5370 static void 5371 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5372 { 5373 LIST_HEAD(completions); 5374 struct lpfc_sli *psli; 5375 IOCB_t *icmd; 5376 struct lpfc_iocbq *iocb, *next_iocb; 5377 struct lpfc_sli_ring *pring; 5378 5379 psli = &phba->sli; 5380 pring = lpfc_phba_elsring(phba); 5381 5382 /* Error matching iocb on txq or txcmplq 5383 * First check the txq. 5384 */ 5385 spin_lock_irq(&phba->hbalock); 5386 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5387 if (iocb->context1 != ndlp) { 5388 continue; 5389 } 5390 icmd = &iocb->iocb; 5391 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5392 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5393 5394 list_move_tail(&iocb->list, &completions); 5395 } 5396 } 5397 5398 /* Next check the txcmplq */ 5399 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5400 if (iocb->context1 != ndlp) { 5401 continue; 5402 } 5403 icmd = &iocb->iocb; 5404 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5405 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5406 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5407 } 5408 } 5409 spin_unlock_irq(&phba->hbalock); 5410 5411 /* Cancel all the IOCBs from the completions list */ 5412 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5413 IOERR_SLI_ABORTED); 5414 } 5415 5416 static void 5417 lpfc_disc_flush_list(struct lpfc_vport *vport) 5418 { 5419 struct lpfc_nodelist *ndlp, *next_ndlp; 5420 struct lpfc_hba *phba = vport->phba; 5421 5422 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5423 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5424 nlp_listp) { 5425 if (!NLP_CHK_NODE_ACT(ndlp)) 5426 continue; 5427 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5428 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5429 lpfc_free_tx(phba, ndlp); 5430 } 5431 } 5432 } 5433 } 5434 5435 void 5436 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5437 { 5438 lpfc_els_flush_rscn(vport); 5439 lpfc_els_flush_cmd(vport); 5440 lpfc_disc_flush_list(vport); 5441 } 5442 5443 /*****************************************************************************/ 5444 /* 5445 * NAME: lpfc_disc_timeout 5446 * 5447 * FUNCTION: Fibre Channel driver discovery timeout routine. 5448 * 5449 * EXECUTION ENVIRONMENT: interrupt only 5450 * 5451 * CALLED FROM: 5452 * Timer function 5453 * 5454 * RETURNS: 5455 * none 5456 */ 5457 /*****************************************************************************/ 5458 void 5459 lpfc_disc_timeout(unsigned long ptr) 5460 { 5461 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5462 struct lpfc_hba *phba = vport->phba; 5463 uint32_t tmo_posted; 5464 unsigned long flags = 0; 5465 5466 if (unlikely(!phba)) 5467 return; 5468 5469 spin_lock_irqsave(&vport->work_port_lock, flags); 5470 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5471 if (!tmo_posted) 5472 vport->work_port_events |= WORKER_DISC_TMO; 5473 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5474 5475 if (!tmo_posted) 5476 lpfc_worker_wake_up(phba); 5477 return; 5478 } 5479 5480 static void 5481 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5482 { 5483 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5484 struct lpfc_hba *phba = vport->phba; 5485 struct lpfc_sli *psli = &phba->sli; 5486 struct lpfc_nodelist *ndlp, *next_ndlp; 5487 LPFC_MBOXQ_t *initlinkmbox; 5488 int rc, clrlaerr = 0; 5489 5490 if (!(vport->fc_flag & FC_DISC_TMO)) 5491 return; 5492 5493 spin_lock_irq(shost->host_lock); 5494 vport->fc_flag &= ~FC_DISC_TMO; 5495 spin_unlock_irq(shost->host_lock); 5496 5497 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5498 "disc timeout: state:x%x rtry:x%x flg:x%x", 5499 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5500 5501 switch (vport->port_state) { 5502 5503 case LPFC_LOCAL_CFG_LINK: 5504 /* 5505 * port_state is identically LPFC_LOCAL_CFG_LINK while 5506 * waiting for FAN timeout 5507 */ 5508 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5509 "0221 FAN timeout\n"); 5510 5511 /* Start discovery by sending FLOGI, clean up old rpis */ 5512 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5513 nlp_listp) { 5514 if (!NLP_CHK_NODE_ACT(ndlp)) 5515 continue; 5516 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5517 continue; 5518 if (ndlp->nlp_type & NLP_FABRIC) { 5519 /* Clean up the ndlp on Fabric connections */ 5520 lpfc_drop_node(vport, ndlp); 5521 5522 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5523 /* Fail outstanding IO now since device 5524 * is marked for PLOGI. 5525 */ 5526 lpfc_unreg_rpi(vport, ndlp); 5527 } 5528 } 5529 if (vport->port_state != LPFC_FLOGI) { 5530 if (phba->sli_rev <= LPFC_SLI_REV3) 5531 lpfc_initial_flogi(vport); 5532 else 5533 lpfc_issue_init_vfi(vport); 5534 return; 5535 } 5536 break; 5537 5538 case LPFC_FDISC: 5539 case LPFC_FLOGI: 5540 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5541 /* Initial FLOGI timeout */ 5542 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5543 "0222 Initial %s timeout\n", 5544 vport->vpi ? "FDISC" : "FLOGI"); 5545 5546 /* Assume no Fabric and go on with discovery. 5547 * Check for outstanding ELS FLOGI to abort. 5548 */ 5549 5550 /* FLOGI failed, so just use loop map to make discovery list */ 5551 lpfc_disc_list_loopmap(vport); 5552 5553 /* Start discovery */ 5554 lpfc_disc_start(vport); 5555 break; 5556 5557 case LPFC_FABRIC_CFG_LINK: 5558 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5559 NameServer login */ 5560 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5561 "0223 Timeout while waiting for " 5562 "NameServer login\n"); 5563 /* Next look for NameServer ndlp */ 5564 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5565 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5566 lpfc_els_abort(phba, ndlp); 5567 5568 /* ReStart discovery */ 5569 goto restart_disc; 5570 5571 case LPFC_NS_QRY: 5572 /* Check for wait for NameServer Rsp timeout */ 5573 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5574 "0224 NameServer Query timeout " 5575 "Data: x%x x%x\n", 5576 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5577 5578 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5579 /* Try it one more time */ 5580 vport->fc_ns_retry++; 5581 vport->gidft_inp = 0; 5582 rc = lpfc_issue_gidft(vport); 5583 if (rc == 0) 5584 break; 5585 } 5586 vport->fc_ns_retry = 0; 5587 5588 restart_disc: 5589 /* 5590 * Discovery is over. 5591 * set port_state to PORT_READY if SLI2. 5592 * cmpl_reg_vpi will set port_state to READY for SLI3. 5593 */ 5594 if (phba->sli_rev < LPFC_SLI_REV4) { 5595 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5596 lpfc_issue_reg_vpi(phba, vport); 5597 else { 5598 lpfc_issue_clear_la(phba, vport); 5599 vport->port_state = LPFC_VPORT_READY; 5600 } 5601 } 5602 5603 /* Setup and issue mailbox INITIALIZE LINK command */ 5604 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5605 if (!initlinkmbox) { 5606 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5607 "0206 Device Discovery " 5608 "completion error\n"); 5609 phba->link_state = LPFC_HBA_ERROR; 5610 break; 5611 } 5612 5613 lpfc_linkdown(phba); 5614 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5615 phba->cfg_link_speed); 5616 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5617 initlinkmbox->vport = vport; 5618 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5619 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5620 lpfc_set_loopback_flag(phba); 5621 if (rc == MBX_NOT_FINISHED) 5622 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5623 5624 break; 5625 5626 case LPFC_DISC_AUTH: 5627 /* Node Authentication timeout */ 5628 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5629 "0227 Node Authentication timeout\n"); 5630 lpfc_disc_flush_list(vport); 5631 5632 /* 5633 * set port_state to PORT_READY if SLI2. 5634 * cmpl_reg_vpi will set port_state to READY for SLI3. 5635 */ 5636 if (phba->sli_rev < LPFC_SLI_REV4) { 5637 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5638 lpfc_issue_reg_vpi(phba, vport); 5639 else { /* NPIV Not enabled */ 5640 lpfc_issue_clear_la(phba, vport); 5641 vport->port_state = LPFC_VPORT_READY; 5642 } 5643 } 5644 break; 5645 5646 case LPFC_VPORT_READY: 5647 if (vport->fc_flag & FC_RSCN_MODE) { 5648 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5649 "0231 RSCN timeout Data: x%x " 5650 "x%x\n", 5651 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5652 5653 /* Cleanup any outstanding ELS commands */ 5654 lpfc_els_flush_cmd(vport); 5655 5656 lpfc_els_flush_rscn(vport); 5657 lpfc_disc_flush_list(vport); 5658 } 5659 break; 5660 5661 default: 5662 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5663 "0273 Unexpected discovery timeout, " 5664 "vport State x%x\n", vport->port_state); 5665 break; 5666 } 5667 5668 switch (phba->link_state) { 5669 case LPFC_CLEAR_LA: 5670 /* CLEAR LA timeout */ 5671 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5672 "0228 CLEAR LA timeout\n"); 5673 clrlaerr = 1; 5674 break; 5675 5676 case LPFC_LINK_UP: 5677 lpfc_issue_clear_la(phba, vport); 5678 /* Drop thru */ 5679 case LPFC_LINK_UNKNOWN: 5680 case LPFC_WARM_START: 5681 case LPFC_INIT_START: 5682 case LPFC_INIT_MBX_CMDS: 5683 case LPFC_LINK_DOWN: 5684 case LPFC_HBA_ERROR: 5685 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5686 "0230 Unexpected timeout, hba link " 5687 "state x%x\n", phba->link_state); 5688 clrlaerr = 1; 5689 break; 5690 5691 case LPFC_HBA_READY: 5692 break; 5693 } 5694 5695 if (clrlaerr) { 5696 lpfc_disc_flush_list(vport); 5697 if (phba->sli_rev != LPFC_SLI_REV4) { 5698 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5699 ~LPFC_STOP_IOCB_EVENT; 5700 psli->sli3_ring[LPFC_FCP_RING].flag &= 5701 ~LPFC_STOP_IOCB_EVENT; 5702 } 5703 vport->port_state = LPFC_VPORT_READY; 5704 } 5705 return; 5706 } 5707 5708 /* 5709 * This routine handles processing a NameServer REG_LOGIN mailbox 5710 * command upon completion. It is setup in the LPFC_MBOXQ 5711 * as the completion routine when the command is 5712 * handed off to the SLI layer. 5713 */ 5714 void 5715 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5716 { 5717 MAILBOX_t *mb = &pmb->u.mb; 5718 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5719 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5720 struct lpfc_vport *vport = pmb->vport; 5721 5722 pmb->context1 = NULL; 5723 pmb->context2 = NULL; 5724 5725 if (phba->sli_rev < LPFC_SLI_REV4) 5726 ndlp->nlp_rpi = mb->un.varWords[0]; 5727 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5728 ndlp->nlp_type |= NLP_FABRIC; 5729 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5730 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5731 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5732 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5733 kref_read(&ndlp->kref), 5734 ndlp->nlp_usg_map, ndlp); 5735 /* 5736 * Start issuing Fabric-Device Management Interface (FDMI) command to 5737 * 0xfffffa (FDMI well known port). 5738 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5739 * DPRT -> RPRT (vports) 5740 */ 5741 if (vport->port_type == LPFC_PHYSICAL_PORT) 5742 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5743 else 5744 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5745 5746 5747 /* decrement the node reference count held for this callback 5748 * function. 5749 */ 5750 lpfc_nlp_put(ndlp); 5751 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5752 kfree(mp); 5753 mempool_free(pmb, phba->mbox_mem_pool); 5754 5755 return; 5756 } 5757 5758 static int 5759 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5760 { 5761 uint16_t *rpi = param; 5762 5763 /* check for active node */ 5764 if (!NLP_CHK_NODE_ACT(ndlp)) 5765 return 0; 5766 5767 return ndlp->nlp_rpi == *rpi; 5768 } 5769 5770 static int 5771 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5772 { 5773 return memcmp(&ndlp->nlp_portname, param, 5774 sizeof(ndlp->nlp_portname)) == 0; 5775 } 5776 5777 static struct lpfc_nodelist * 5778 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5779 { 5780 struct lpfc_nodelist *ndlp; 5781 5782 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5783 if (filter(ndlp, param)) { 5784 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5785 "3185 FIND node filter %p DID " 5786 "Data: x%p x%x x%x\n", 5787 filter, ndlp, ndlp->nlp_DID, 5788 ndlp->nlp_flag); 5789 return ndlp; 5790 } 5791 } 5792 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5793 "3186 FIND node filter %p NOT FOUND.\n", filter); 5794 return NULL; 5795 } 5796 5797 /* 5798 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5799 * returns the node list element pointer else return NULL. 5800 */ 5801 struct lpfc_nodelist * 5802 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5803 { 5804 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5805 } 5806 5807 /* 5808 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5809 * returns the node element list pointer else return NULL. 5810 */ 5811 struct lpfc_nodelist * 5812 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5813 { 5814 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5815 struct lpfc_nodelist *ndlp; 5816 5817 spin_lock_irq(shost->host_lock); 5818 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5819 spin_unlock_irq(shost->host_lock); 5820 return ndlp; 5821 } 5822 5823 /* 5824 * This routine looks up the ndlp lists for the given RPI. If the rpi 5825 * is found, the routine returns the node element list pointer else 5826 * return NULL. 5827 */ 5828 struct lpfc_nodelist * 5829 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5830 { 5831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5832 struct lpfc_nodelist *ndlp; 5833 5834 spin_lock_irq(shost->host_lock); 5835 ndlp = __lpfc_findnode_rpi(vport, rpi); 5836 spin_unlock_irq(shost->host_lock); 5837 return ndlp; 5838 } 5839 5840 /** 5841 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5842 * @phba: pointer to lpfc hba data structure. 5843 * @vpi: the physical host virtual N_Port identifier. 5844 * 5845 * This routine finds a vport on a HBA (referred by @phba) through a 5846 * @vpi. The function walks the HBA's vport list and returns the address 5847 * of the vport with the matching @vpi. 5848 * 5849 * Return code 5850 * NULL - No vport with the matching @vpi found 5851 * Otherwise - Address to the vport with the matching @vpi. 5852 **/ 5853 struct lpfc_vport * 5854 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5855 { 5856 struct lpfc_vport *vport; 5857 unsigned long flags; 5858 int i = 0; 5859 5860 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5861 if (vpi > 0) { 5862 /* 5863 * Translate the physical vpi to the logical vpi. The 5864 * vport stores the logical vpi. 5865 */ 5866 for (i = 0; i < phba->max_vpi; i++) { 5867 if (vpi == phba->vpi_ids[i]) 5868 break; 5869 } 5870 5871 if (i >= phba->max_vpi) { 5872 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5873 "2936 Could not find Vport mapped " 5874 "to vpi %d\n", vpi); 5875 return NULL; 5876 } 5877 } 5878 5879 spin_lock_irqsave(&phba->hbalock, flags); 5880 list_for_each_entry(vport, &phba->port_list, listentry) { 5881 if (vport->vpi == i) { 5882 spin_unlock_irqrestore(&phba->hbalock, flags); 5883 return vport; 5884 } 5885 } 5886 spin_unlock_irqrestore(&phba->hbalock, flags); 5887 return NULL; 5888 } 5889 5890 void 5891 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5892 uint32_t did) 5893 { 5894 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5895 5896 lpfc_initialize_node(vport, ndlp, did); 5897 INIT_LIST_HEAD(&ndlp->nlp_listp); 5898 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5899 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 5900 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5901 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5902 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5903 ndlp->nlp_flag, 5904 kref_read(&ndlp->kref), 5905 ndlp->nlp_usg_map, ndlp); 5906 5907 ndlp->active_rrqs_xri_bitmap = 5908 mempool_alloc(vport->phba->active_rrq_pool, 5909 GFP_KERNEL); 5910 if (ndlp->active_rrqs_xri_bitmap) 5911 memset(ndlp->active_rrqs_xri_bitmap, 0, 5912 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5913 } 5914 5915 5916 5917 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5918 "node init: did:x%x", 5919 ndlp->nlp_DID, 0, 0); 5920 5921 return; 5922 } 5923 5924 /* This routine releases all resources associated with a specifc NPort's ndlp 5925 * and mempool_free's the nodelist. 5926 */ 5927 static void 5928 lpfc_nlp_release(struct kref *kref) 5929 { 5930 struct lpfc_hba *phba; 5931 unsigned long flags; 5932 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5933 kref); 5934 5935 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5936 "node release: did:x%x flg:x%x type:x%x", 5937 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5938 5939 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5940 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5941 "usgmap:x%x refcnt:%d rpi:%x\n", 5942 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5943 kref_read(&ndlp->kref), ndlp->nlp_rpi); 5944 5945 /* remove ndlp from action. */ 5946 lpfc_nlp_remove(ndlp->vport, ndlp); 5947 5948 /* clear the ndlp active flag for all release cases */ 5949 phba = ndlp->phba; 5950 spin_lock_irqsave(&phba->ndlp_lock, flags); 5951 NLP_CLR_NODE_ACT(ndlp); 5952 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5953 if (phba->sli_rev == LPFC_SLI_REV4) 5954 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5955 5956 /* free ndlp memory for final ndlp release */ 5957 if (NLP_CHK_FREE_REQ(ndlp)) { 5958 kfree(ndlp->lat_data); 5959 if (phba->sli_rev == LPFC_SLI_REV4) 5960 mempool_free(ndlp->active_rrqs_xri_bitmap, 5961 ndlp->phba->active_rrq_pool); 5962 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5963 } 5964 } 5965 5966 /* This routine bumps the reference count for a ndlp structure to ensure 5967 * that one discovery thread won't free a ndlp while another discovery thread 5968 * is using it. 5969 */ 5970 struct lpfc_nodelist * 5971 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5972 { 5973 struct lpfc_hba *phba; 5974 unsigned long flags; 5975 5976 if (ndlp) { 5977 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5978 "node get: did:x%x flg:x%x refcnt:x%x", 5979 ndlp->nlp_DID, ndlp->nlp_flag, 5980 kref_read(&ndlp->kref)); 5981 /* The check of ndlp usage to prevent incrementing the 5982 * ndlp reference count that is in the process of being 5983 * released. 5984 */ 5985 phba = ndlp->phba; 5986 spin_lock_irqsave(&phba->ndlp_lock, flags); 5987 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5988 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5989 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5990 "0276 lpfc_nlp_get: ndlp:x%p " 5991 "usgmap:x%x refcnt:%d\n", 5992 (void *)ndlp, ndlp->nlp_usg_map, 5993 kref_read(&ndlp->kref)); 5994 return NULL; 5995 } else 5996 kref_get(&ndlp->kref); 5997 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5998 } 5999 return ndlp; 6000 } 6001 6002 /* This routine decrements the reference count for a ndlp structure. If the 6003 * count goes to 0, this indicates the the associated nodelist should be 6004 * freed. Returning 1 indicates the ndlp resource has been released; on the 6005 * other hand, returning 0 indicates the ndlp resource has not been released 6006 * yet. 6007 */ 6008 int 6009 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6010 { 6011 struct lpfc_hba *phba; 6012 unsigned long flags; 6013 6014 if (!ndlp) 6015 return 1; 6016 6017 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6018 "node put: did:x%x flg:x%x refcnt:x%x", 6019 ndlp->nlp_DID, ndlp->nlp_flag, 6020 kref_read(&ndlp->kref)); 6021 phba = ndlp->phba; 6022 spin_lock_irqsave(&phba->ndlp_lock, flags); 6023 /* Check the ndlp memory free acknowledge flag to avoid the 6024 * possible race condition that kref_put got invoked again 6025 * after previous one has done ndlp memory free. 6026 */ 6027 if (NLP_CHK_FREE_ACK(ndlp)) { 6028 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6029 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6030 "0274 lpfc_nlp_put: ndlp:x%p " 6031 "usgmap:x%x refcnt:%d\n", 6032 (void *)ndlp, ndlp->nlp_usg_map, 6033 kref_read(&ndlp->kref)); 6034 return 1; 6035 } 6036 /* Check the ndlp inactivate log flag to avoid the possible 6037 * race condition that kref_put got invoked again after ndlp 6038 * is already in inactivating state. 6039 */ 6040 if (NLP_CHK_IACT_REQ(ndlp)) { 6041 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6042 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6043 "0275 lpfc_nlp_put: ndlp:x%p " 6044 "usgmap:x%x refcnt:%d\n", 6045 (void *)ndlp, ndlp->nlp_usg_map, 6046 kref_read(&ndlp->kref)); 6047 return 1; 6048 } 6049 /* For last put, mark the ndlp usage flags to make sure no 6050 * other kref_get and kref_put on the same ndlp shall get 6051 * in between the process when the final kref_put has been 6052 * invoked on this ndlp. 6053 */ 6054 if (kref_read(&ndlp->kref) == 1) { 6055 /* Indicate ndlp is put to inactive state. */ 6056 NLP_SET_IACT_REQ(ndlp); 6057 /* Acknowledge ndlp memory free has been seen. */ 6058 if (NLP_CHK_FREE_REQ(ndlp)) 6059 NLP_SET_FREE_ACK(ndlp); 6060 } 6061 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6062 /* Note, the kref_put returns 1 when decrementing a reference 6063 * count that was 1, it invokes the release callback function, 6064 * but it still left the reference count as 1 (not actually 6065 * performs the last decrementation). Otherwise, it actually 6066 * decrements the reference count and returns 0. 6067 */ 6068 return kref_put(&ndlp->kref, lpfc_nlp_release); 6069 } 6070 6071 /* This routine free's the specified nodelist if it is not in use 6072 * by any other discovery thread. This routine returns 1 if the 6073 * ndlp has been freed. A return value of 0 indicates the ndlp is 6074 * not yet been released. 6075 */ 6076 int 6077 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6078 { 6079 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6080 "node not used: did:x%x flg:x%x refcnt:x%x", 6081 ndlp->nlp_DID, ndlp->nlp_flag, 6082 kref_read(&ndlp->kref)); 6083 if (kref_read(&ndlp->kref) == 1) 6084 if (lpfc_nlp_put(ndlp)) 6085 return 1; 6086 return 0; 6087 } 6088 6089 /** 6090 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6091 * @phba: Pointer to hba context object. 6092 * 6093 * This function iterate through all FC nodes associated 6094 * will all vports to check if there is any node with 6095 * fc_rports associated with it. If there is an fc_rport 6096 * associated with the node, then the node is either in 6097 * discovered state or its devloss_timer is pending. 6098 */ 6099 static int 6100 lpfc_fcf_inuse(struct lpfc_hba *phba) 6101 { 6102 struct lpfc_vport **vports; 6103 int i, ret = 0; 6104 struct lpfc_nodelist *ndlp; 6105 struct Scsi_Host *shost; 6106 6107 vports = lpfc_create_vport_work_array(phba); 6108 6109 /* If driver cannot allocate memory, indicate fcf is in use */ 6110 if (!vports) 6111 return 1; 6112 6113 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6114 shost = lpfc_shost_from_vport(vports[i]); 6115 spin_lock_irq(shost->host_lock); 6116 /* 6117 * IF the CVL_RCVD bit is not set then we have sent the 6118 * flogi. 6119 * If dev_loss fires while we are waiting we do not want to 6120 * unreg the fcf. 6121 */ 6122 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6123 spin_unlock_irq(shost->host_lock); 6124 ret = 1; 6125 goto out; 6126 } 6127 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6128 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6129 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6130 ret = 1; 6131 spin_unlock_irq(shost->host_lock); 6132 goto out; 6133 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6134 ret = 1; 6135 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6136 "2624 RPI %x DID %x flag %x " 6137 "still logged in\n", 6138 ndlp->nlp_rpi, ndlp->nlp_DID, 6139 ndlp->nlp_flag); 6140 } 6141 } 6142 spin_unlock_irq(shost->host_lock); 6143 } 6144 out: 6145 lpfc_destroy_vport_work_array(phba, vports); 6146 return ret; 6147 } 6148 6149 /** 6150 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6151 * @phba: Pointer to hba context object. 6152 * @mboxq: Pointer to mailbox object. 6153 * 6154 * This function frees memory associated with the mailbox command. 6155 */ 6156 void 6157 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6158 { 6159 struct lpfc_vport *vport = mboxq->vport; 6160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6161 6162 if (mboxq->u.mb.mbxStatus) { 6163 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6164 "2555 UNREG_VFI mbxStatus error x%x " 6165 "HBA state x%x\n", 6166 mboxq->u.mb.mbxStatus, vport->port_state); 6167 } 6168 spin_lock_irq(shost->host_lock); 6169 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6170 spin_unlock_irq(shost->host_lock); 6171 mempool_free(mboxq, phba->mbox_mem_pool); 6172 return; 6173 } 6174 6175 /** 6176 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6177 * @phba: Pointer to hba context object. 6178 * @mboxq: Pointer to mailbox object. 6179 * 6180 * This function frees memory associated with the mailbox command. 6181 */ 6182 static void 6183 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6184 { 6185 struct lpfc_vport *vport = mboxq->vport; 6186 6187 if (mboxq->u.mb.mbxStatus) { 6188 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6189 "2550 UNREG_FCFI mbxStatus error x%x " 6190 "HBA state x%x\n", 6191 mboxq->u.mb.mbxStatus, vport->port_state); 6192 } 6193 mempool_free(mboxq, phba->mbox_mem_pool); 6194 return; 6195 } 6196 6197 /** 6198 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6199 * @phba: Pointer to hba context object. 6200 * 6201 * This function prepare the HBA for unregistering the currently registered 6202 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6203 * VFIs. 6204 */ 6205 int 6206 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6207 { 6208 struct lpfc_vport **vports; 6209 struct lpfc_nodelist *ndlp; 6210 struct Scsi_Host *shost; 6211 int i = 0, rc; 6212 6213 /* Unregister RPIs */ 6214 if (lpfc_fcf_inuse(phba)) 6215 lpfc_unreg_hba_rpis(phba); 6216 6217 /* At this point, all discovery is aborted */ 6218 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6219 6220 /* Unregister VPIs */ 6221 vports = lpfc_create_vport_work_array(phba); 6222 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6223 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6224 /* Stop FLOGI/FDISC retries */ 6225 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6226 if (ndlp) 6227 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6228 lpfc_cleanup_pending_mbox(vports[i]); 6229 if (phba->sli_rev == LPFC_SLI_REV4) 6230 lpfc_sli4_unreg_all_rpis(vports[i]); 6231 lpfc_mbx_unreg_vpi(vports[i]); 6232 shost = lpfc_shost_from_vport(vports[i]); 6233 spin_lock_irq(shost->host_lock); 6234 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6235 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6236 spin_unlock_irq(shost->host_lock); 6237 } 6238 lpfc_destroy_vport_work_array(phba, vports); 6239 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6240 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6241 if (ndlp) 6242 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6243 lpfc_cleanup_pending_mbox(phba->pport); 6244 if (phba->sli_rev == LPFC_SLI_REV4) 6245 lpfc_sli4_unreg_all_rpis(phba->pport); 6246 lpfc_mbx_unreg_vpi(phba->pport); 6247 shost = lpfc_shost_from_vport(phba->pport); 6248 spin_lock_irq(shost->host_lock); 6249 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6250 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6251 spin_unlock_irq(shost->host_lock); 6252 } 6253 6254 /* Cleanup any outstanding ELS commands */ 6255 lpfc_els_flush_all_cmd(phba); 6256 6257 /* Unregister the physical port VFI */ 6258 rc = lpfc_issue_unreg_vfi(phba->pport); 6259 return rc; 6260 } 6261 6262 /** 6263 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6264 * @phba: Pointer to hba context object. 6265 * 6266 * This function issues synchronous unregister FCF mailbox command to HBA to 6267 * unregister the currently registered FCF record. The driver does not reset 6268 * the driver FCF usage state flags. 6269 * 6270 * Return 0 if successfully issued, none-zero otherwise. 6271 */ 6272 int 6273 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6274 { 6275 LPFC_MBOXQ_t *mbox; 6276 int rc; 6277 6278 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6279 if (!mbox) { 6280 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6281 "2551 UNREG_FCFI mbox allocation failed" 6282 "HBA state x%x\n", phba->pport->port_state); 6283 return -ENOMEM; 6284 } 6285 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6286 mbox->vport = phba->pport; 6287 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6288 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6289 6290 if (rc == MBX_NOT_FINISHED) { 6291 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6292 "2552 Unregister FCFI command failed rc x%x " 6293 "HBA state x%x\n", 6294 rc, phba->pport->port_state); 6295 return -EINVAL; 6296 } 6297 return 0; 6298 } 6299 6300 /** 6301 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6302 * @phba: Pointer to hba context object. 6303 * 6304 * This function unregisters the currently reigstered FCF. This function 6305 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6306 */ 6307 void 6308 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6309 { 6310 int rc; 6311 6312 /* Preparation for unregistering fcf */ 6313 rc = lpfc_unregister_fcf_prep(phba); 6314 if (rc) { 6315 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6316 "2748 Failed to prepare for unregistering " 6317 "HBA's FCF record: rc=%d\n", rc); 6318 return; 6319 } 6320 6321 /* Now, unregister FCF record and reset HBA FCF state */ 6322 rc = lpfc_sli4_unregister_fcf(phba); 6323 if (rc) 6324 return; 6325 /* Reset HBA FCF states after successful unregister FCF */ 6326 phba->fcf.fcf_flag = 0; 6327 phba->fcf.current_rec.flag = 0; 6328 6329 /* 6330 * If driver is not unloading, check if there is any other 6331 * FCF record that can be used for discovery. 6332 */ 6333 if ((phba->pport->load_flag & FC_UNLOADING) || 6334 (phba->link_state < LPFC_LINK_UP)) 6335 return; 6336 6337 /* This is considered as the initial FCF discovery scan */ 6338 spin_lock_irq(&phba->hbalock); 6339 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6340 spin_unlock_irq(&phba->hbalock); 6341 6342 /* Reset FCF roundrobin bmask for new discovery */ 6343 lpfc_sli4_clear_fcf_rr_bmask(phba); 6344 6345 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6346 6347 if (rc) { 6348 spin_lock_irq(&phba->hbalock); 6349 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6350 spin_unlock_irq(&phba->hbalock); 6351 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6352 "2553 lpfc_unregister_unused_fcf failed " 6353 "to read FCF record HBA state x%x\n", 6354 phba->pport->port_state); 6355 } 6356 } 6357 6358 /** 6359 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6360 * @phba: Pointer to hba context object. 6361 * 6362 * This function just unregisters the currently reigstered FCF. It does not 6363 * try to find another FCF for discovery. 6364 */ 6365 void 6366 lpfc_unregister_fcf(struct lpfc_hba *phba) 6367 { 6368 int rc; 6369 6370 /* Preparation for unregistering fcf */ 6371 rc = lpfc_unregister_fcf_prep(phba); 6372 if (rc) { 6373 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6374 "2749 Failed to prepare for unregistering " 6375 "HBA's FCF record: rc=%d\n", rc); 6376 return; 6377 } 6378 6379 /* Now, unregister FCF record and reset HBA FCF state */ 6380 rc = lpfc_sli4_unregister_fcf(phba); 6381 if (rc) 6382 return; 6383 /* Set proper HBA FCF states after successful unregister FCF */ 6384 spin_lock_irq(&phba->hbalock); 6385 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6386 spin_unlock_irq(&phba->hbalock); 6387 } 6388 6389 /** 6390 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6391 * @phba: Pointer to hba context object. 6392 * 6393 * This function check if there are any connected remote port for the FCF and 6394 * if all the devices are disconnected, this function unregister FCFI. 6395 * This function also tries to use another FCF for discovery. 6396 */ 6397 void 6398 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6399 { 6400 /* 6401 * If HBA is not running in FIP mode, if HBA does not support 6402 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6403 * registered, do nothing. 6404 */ 6405 spin_lock_irq(&phba->hbalock); 6406 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6407 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6408 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6409 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6410 (phba->pport->port_state == LPFC_FLOGI)) { 6411 spin_unlock_irq(&phba->hbalock); 6412 return; 6413 } 6414 spin_unlock_irq(&phba->hbalock); 6415 6416 if (lpfc_fcf_inuse(phba)) 6417 return; 6418 6419 lpfc_unregister_fcf_rescan(phba); 6420 } 6421 6422 /** 6423 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6424 * @phba: Pointer to hba context object. 6425 * @buff: Buffer containing the FCF connection table as in the config 6426 * region. 6427 * This function create driver data structure for the FCF connection 6428 * record table read from config region 23. 6429 */ 6430 static void 6431 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6432 uint8_t *buff) 6433 { 6434 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6435 struct lpfc_fcf_conn_hdr *conn_hdr; 6436 struct lpfc_fcf_conn_rec *conn_rec; 6437 uint32_t record_count; 6438 int i; 6439 6440 /* Free the current connect table */ 6441 list_for_each_entry_safe(conn_entry, next_conn_entry, 6442 &phba->fcf_conn_rec_list, list) { 6443 list_del_init(&conn_entry->list); 6444 kfree(conn_entry); 6445 } 6446 6447 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6448 record_count = conn_hdr->length * sizeof(uint32_t)/ 6449 sizeof(struct lpfc_fcf_conn_rec); 6450 6451 conn_rec = (struct lpfc_fcf_conn_rec *) 6452 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6453 6454 for (i = 0; i < record_count; i++) { 6455 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6456 continue; 6457 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6458 GFP_KERNEL); 6459 if (!conn_entry) { 6460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6461 "2566 Failed to allocate connection" 6462 " table entry\n"); 6463 return; 6464 } 6465 6466 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6467 sizeof(struct lpfc_fcf_conn_rec)); 6468 list_add_tail(&conn_entry->list, 6469 &phba->fcf_conn_rec_list); 6470 } 6471 6472 if (!list_empty(&phba->fcf_conn_rec_list)) { 6473 i = 0; 6474 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6475 list) { 6476 conn_rec = &conn_entry->conn_rec; 6477 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6478 "3345 FCF connection list rec[%02d]: " 6479 "flags:x%04x, vtag:x%04x, " 6480 "fabric_name:x%02x:%02x:%02x:%02x:" 6481 "%02x:%02x:%02x:%02x, " 6482 "switch_name:x%02x:%02x:%02x:%02x:" 6483 "%02x:%02x:%02x:%02x\n", i++, 6484 conn_rec->flags, conn_rec->vlan_tag, 6485 conn_rec->fabric_name[0], 6486 conn_rec->fabric_name[1], 6487 conn_rec->fabric_name[2], 6488 conn_rec->fabric_name[3], 6489 conn_rec->fabric_name[4], 6490 conn_rec->fabric_name[5], 6491 conn_rec->fabric_name[6], 6492 conn_rec->fabric_name[7], 6493 conn_rec->switch_name[0], 6494 conn_rec->switch_name[1], 6495 conn_rec->switch_name[2], 6496 conn_rec->switch_name[3], 6497 conn_rec->switch_name[4], 6498 conn_rec->switch_name[5], 6499 conn_rec->switch_name[6], 6500 conn_rec->switch_name[7]); 6501 } 6502 } 6503 } 6504 6505 /** 6506 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6507 * @phba: Pointer to hba context object. 6508 * @buff: Buffer containing the FCoE parameter data structure. 6509 * 6510 * This function update driver data structure with config 6511 * parameters read from config region 23. 6512 */ 6513 static void 6514 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6515 uint8_t *buff) 6516 { 6517 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6518 struct lpfc_fcoe_params *fcoe_param; 6519 6520 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6521 buff; 6522 fcoe_param = (struct lpfc_fcoe_params *) 6523 (buff + sizeof(struct lpfc_fip_param_hdr)); 6524 6525 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6526 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6527 return; 6528 6529 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6530 phba->valid_vlan = 1; 6531 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6532 0xFFF; 6533 } 6534 6535 phba->fc_map[0] = fcoe_param->fc_map[0]; 6536 phba->fc_map[1] = fcoe_param->fc_map[1]; 6537 phba->fc_map[2] = fcoe_param->fc_map[2]; 6538 return; 6539 } 6540 6541 /** 6542 * lpfc_get_rec_conf23 - Get a record type in config region data. 6543 * @buff: Buffer containing config region 23 data. 6544 * @size: Size of the data buffer. 6545 * @rec_type: Record type to be searched. 6546 * 6547 * This function searches config region data to find the beginning 6548 * of the record specified by record_type. If record found, this 6549 * function return pointer to the record else return NULL. 6550 */ 6551 static uint8_t * 6552 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6553 { 6554 uint32_t offset = 0, rec_length; 6555 6556 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6557 (size < sizeof(uint32_t))) 6558 return NULL; 6559 6560 rec_length = buff[offset + 1]; 6561 6562 /* 6563 * One TLV record has one word header and number of data words 6564 * specified in the rec_length field of the record header. 6565 */ 6566 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6567 <= size) { 6568 if (buff[offset] == rec_type) 6569 return &buff[offset]; 6570 6571 if (buff[offset] == LPFC_REGION23_LAST_REC) 6572 return NULL; 6573 6574 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6575 rec_length = buff[offset + 1]; 6576 } 6577 return NULL; 6578 } 6579 6580 /** 6581 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6582 * @phba: Pointer to lpfc_hba data structure. 6583 * @buff: Buffer containing config region 23 data. 6584 * @size: Size of the data buffer. 6585 * 6586 * This function parses the FCoE config parameters in config region 23 and 6587 * populate driver data structure with the parameters. 6588 */ 6589 void 6590 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6591 uint8_t *buff, 6592 uint32_t size) 6593 { 6594 uint32_t offset = 0; 6595 uint8_t *rec_ptr; 6596 6597 /* 6598 * If data size is less than 2 words signature and version cannot be 6599 * verified. 6600 */ 6601 if (size < 2*sizeof(uint32_t)) 6602 return; 6603 6604 /* Check the region signature first */ 6605 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6607 "2567 Config region 23 has bad signature\n"); 6608 return; 6609 } 6610 6611 offset += 4; 6612 6613 /* Check the data structure version */ 6614 if (buff[offset] != LPFC_REGION23_VERSION) { 6615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6616 "2568 Config region 23 has bad version\n"); 6617 return; 6618 } 6619 offset += 4; 6620 6621 /* Read FCoE param record */ 6622 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6623 size - offset, FCOE_PARAM_TYPE); 6624 if (rec_ptr) 6625 lpfc_read_fcoe_param(phba, rec_ptr); 6626 6627 /* Read FCF connection table */ 6628 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6629 size - offset, FCOE_CONN_TBL_TYPE); 6630 if (rec_ptr) 6631 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6632 6633 } 6634