1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/slab.h> 25 #include <linux/pci.h> 26 #include <linux/kthread.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 34 #include "lpfc_hw4.h" 35 #include "lpfc_hw.h" 36 #include "lpfc_nl.h" 37 #include "lpfc_disc.h" 38 #include "lpfc_sli.h" 39 #include "lpfc_sli4.h" 40 #include "lpfc_scsi.h" 41 #include "lpfc.h" 42 #include "lpfc_logmsg.h" 43 #include "lpfc_crtn.h" 44 #include "lpfc_vport.h" 45 #include "lpfc_debugfs.h" 46 47 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 48 static uint8_t lpfcAlpaArray[] = { 49 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 50 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 51 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 52 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 53 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 54 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 55 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 56 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 57 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 58 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 59 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 60 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 61 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 62 }; 63 64 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 65 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 66 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 67 static int lpfc_fcf_inuse(struct lpfc_hba *); 68 69 void 70 lpfc_terminate_rport_io(struct fc_rport *rport) 71 { 72 struct lpfc_rport_data *rdata; 73 struct lpfc_nodelist * ndlp; 74 struct lpfc_hba *phba; 75 76 rdata = rport->dd_data; 77 ndlp = rdata->pnode; 78 79 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 80 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 81 printk(KERN_ERR "Cannot find remote node" 82 " to terminate I/O Data x%x\n", 83 rport->port_id); 84 return; 85 } 86 87 phba = ndlp->phba; 88 89 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 90 "rport terminate: sid:x%x did:x%x flg:x%x", 91 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 92 93 if (ndlp->nlp_sid != NLP_NO_SID) { 94 lpfc_sli_abort_iocb(ndlp->vport, 95 &phba->sli.ring[phba->sli.fcp_ring], 96 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 97 } 98 } 99 100 /* 101 * This function will be called when dev_loss_tmo fire. 102 */ 103 void 104 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 105 { 106 struct lpfc_rport_data *rdata; 107 struct lpfc_nodelist * ndlp; 108 struct lpfc_vport *vport; 109 struct Scsi_Host *shost; 110 struct lpfc_hba *phba; 111 struct lpfc_work_evt *evtp; 112 int put_node; 113 int put_rport; 114 115 rdata = rport->dd_data; 116 ndlp = rdata->pnode; 117 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 118 return; 119 120 vport = ndlp->vport; 121 phba = vport->phba; 122 123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 124 "rport devlosscb: sid:x%x did:x%x flg:x%x", 125 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 126 127 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 128 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 129 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 130 131 /* Don't defer this if we are in the process of deleting the vport 132 * or unloading the driver. The unload will cleanup the node 133 * appropriately we just need to cleanup the ndlp rport info here. 134 */ 135 if (vport->load_flag & FC_UNLOADING) { 136 put_node = rdata->pnode != NULL; 137 put_rport = ndlp->rport != NULL; 138 rdata->pnode = NULL; 139 ndlp->rport = NULL; 140 if (put_node) 141 lpfc_nlp_put(ndlp); 142 if (put_rport) 143 put_device(&rport->dev); 144 return; 145 } 146 147 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 148 return; 149 150 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 151 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 152 "6789 rport name %llx != node port name %llx", 153 rport->port_name, 154 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 155 156 evtp = &ndlp->dev_loss_evt; 157 158 if (!list_empty(&evtp->evt_listp)) { 159 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 160 "6790 rport name %llx dev_loss_evt pending", 161 rport->port_name); 162 return; 163 } 164 165 shost = lpfc_shost_from_vport(vport); 166 spin_lock_irq(shost->host_lock); 167 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 168 spin_unlock_irq(shost->host_lock); 169 170 /* We need to hold the node by incrementing the reference 171 * count until this queued work is done 172 */ 173 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 174 175 spin_lock_irq(&phba->hbalock); 176 if (evtp->evt_arg1) { 177 evtp->evt = LPFC_EVT_DEV_LOSS; 178 list_add_tail(&evtp->evt_listp, &phba->work_list); 179 lpfc_worker_wake_up(phba); 180 } 181 spin_unlock_irq(&phba->hbalock); 182 183 return; 184 } 185 186 /** 187 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 188 * @ndlp: Pointer to remote node object. 189 * 190 * This function is called from the worker thread when devloss timeout timer 191 * expires. For SLI4 host, this routine shall return 1 when at lease one 192 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 193 * routine shall return 0 when there is no remote node is still in use of FCF 194 * when devloss timeout happened to this @ndlp. 195 **/ 196 static int 197 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 198 { 199 struct lpfc_rport_data *rdata; 200 struct fc_rport *rport; 201 struct lpfc_vport *vport; 202 struct lpfc_hba *phba; 203 struct Scsi_Host *shost; 204 uint8_t *name; 205 int put_node; 206 int warn_on = 0; 207 int fcf_inuse = 0; 208 209 rport = ndlp->rport; 210 vport = ndlp->vport; 211 shost = lpfc_shost_from_vport(vport); 212 213 spin_lock_irq(shost->host_lock); 214 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 215 spin_unlock_irq(shost->host_lock); 216 217 if (!rport) 218 return fcf_inuse; 219 220 name = (uint8_t *) &ndlp->nlp_portname; 221 phba = vport->phba; 222 223 if (phba->sli_rev == LPFC_SLI_REV4) 224 fcf_inuse = lpfc_fcf_inuse(phba); 225 226 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 227 "rport devlosstmo:did:x%x type:x%x id:x%x", 228 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 229 230 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 231 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 232 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 233 234 /* 235 * lpfc_nlp_remove if reached with dangling rport drops the 236 * reference. To make sure that does not happen clear rport 237 * pointer in ndlp before lpfc_nlp_put. 238 */ 239 rdata = rport->dd_data; 240 241 /* Don't defer this if we are in the process of deleting the vport 242 * or unloading the driver. The unload will cleanup the node 243 * appropriately we just need to cleanup the ndlp rport info here. 244 */ 245 if (vport->load_flag & FC_UNLOADING) { 246 if (ndlp->nlp_sid != NLP_NO_SID) { 247 /* flush the target */ 248 lpfc_sli_abort_iocb(vport, 249 &phba->sli.ring[phba->sli.fcp_ring], 250 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 251 } 252 put_node = rdata->pnode != NULL; 253 rdata->pnode = NULL; 254 ndlp->rport = NULL; 255 if (put_node) 256 lpfc_nlp_put(ndlp); 257 put_device(&rport->dev); 258 259 return fcf_inuse; 260 } 261 262 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 263 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 264 "0284 Devloss timeout Ignored on " 265 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 266 "NPort x%x\n", 267 *name, *(name+1), *(name+2), *(name+3), 268 *(name+4), *(name+5), *(name+6), *(name+7), 269 ndlp->nlp_DID); 270 return fcf_inuse; 271 } 272 273 put_node = rdata->pnode != NULL; 274 rdata->pnode = NULL; 275 ndlp->rport = NULL; 276 if (put_node) 277 lpfc_nlp_put(ndlp); 278 put_device(&rport->dev); 279 280 if (ndlp->nlp_type & NLP_FABRIC) 281 return fcf_inuse; 282 283 if (ndlp->nlp_sid != NLP_NO_SID) { 284 warn_on = 1; 285 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 286 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 287 } 288 289 if (warn_on) { 290 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 291 "0203 Devloss timeout on " 292 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 293 "NPort x%06x Data: x%x x%x x%x\n", 294 *name, *(name+1), *(name+2), *(name+3), 295 *(name+4), *(name+5), *(name+6), *(name+7), 296 ndlp->nlp_DID, ndlp->nlp_flag, 297 ndlp->nlp_state, ndlp->nlp_rpi); 298 } else { 299 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 300 "0204 Devloss timeout on " 301 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 302 "NPort x%06x Data: x%x x%x x%x\n", 303 *name, *(name+1), *(name+2), *(name+3), 304 *(name+4), *(name+5), *(name+6), *(name+7), 305 ndlp->nlp_DID, ndlp->nlp_flag, 306 ndlp->nlp_state, ndlp->nlp_rpi); 307 } 308 309 if (!(vport->load_flag & FC_UNLOADING) && 310 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 311 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 312 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 313 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 314 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 315 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 316 317 return fcf_inuse; 318 } 319 320 /** 321 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 322 * @phba: Pointer to hba context object. 323 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 324 * @nlp_did: remote node identifer with devloss timeout. 325 * 326 * This function is called from the worker thread after invoking devloss 327 * timeout handler and releasing the reference count for the ndlp with 328 * which the devloss timeout was handled for SLI4 host. For the devloss 329 * timeout of the last remote node which had been in use of FCF, when this 330 * routine is invoked, it shall be guaranteed that none of the remote are 331 * in-use of FCF. When devloss timeout to the last remote using the FCF, 332 * if the FIP engine is neither in FCF table scan process nor roundrobin 333 * failover process, the in-use FCF shall be unregistered. If the FIP 334 * engine is in FCF discovery process, the devloss timeout state shall 335 * be set for either the FCF table scan process or roundrobin failover 336 * process to unregister the in-use FCF. 337 **/ 338 static void 339 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 340 uint32_t nlp_did) 341 { 342 /* If devloss timeout happened to a remote node when FCF had no 343 * longer been in-use, do nothing. 344 */ 345 if (!fcf_inuse) 346 return; 347 348 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 349 spin_lock_irq(&phba->hbalock); 350 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 351 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 352 spin_unlock_irq(&phba->hbalock); 353 return; 354 } 355 phba->hba_flag |= HBA_DEVLOSS_TMO; 356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 357 "2847 Last remote node (x%x) using " 358 "FCF devloss tmo\n", nlp_did); 359 } 360 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 361 spin_unlock_irq(&phba->hbalock); 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2868 Devloss tmo to FCF rediscovery " 364 "in progress\n"); 365 return; 366 } 367 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 368 spin_unlock_irq(&phba->hbalock); 369 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 370 "2869 Devloss tmo to idle FIP engine, " 371 "unreg in-use FCF and rescan.\n"); 372 /* Unregister in-use FCF and rescan */ 373 lpfc_unregister_fcf_rescan(phba); 374 return; 375 } 376 spin_unlock_irq(&phba->hbalock); 377 if (phba->hba_flag & FCF_TS_INPROG) 378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 379 "2870 FCF table scan in progress\n"); 380 if (phba->hba_flag & FCF_RR_INPROG) 381 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 382 "2871 FLOGI roundrobin FCF failover " 383 "in progress\n"); 384 } 385 lpfc_unregister_unused_fcf(phba); 386 } 387 388 /** 389 * lpfc_alloc_fast_evt - Allocates data structure for posting event 390 * @phba: Pointer to hba context object. 391 * 392 * This function is called from the functions which need to post 393 * events from interrupt context. This function allocates data 394 * structure required for posting event. It also keeps track of 395 * number of events pending and prevent event storm when there are 396 * too many events. 397 **/ 398 struct lpfc_fast_path_event * 399 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 400 struct lpfc_fast_path_event *ret; 401 402 /* If there are lot of fast event do not exhaust memory due to this */ 403 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 404 return NULL; 405 406 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 407 GFP_ATOMIC); 408 if (ret) { 409 atomic_inc(&phba->fast_event_count); 410 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 411 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 412 } 413 return ret; 414 } 415 416 /** 417 * lpfc_free_fast_evt - Frees event data structure 418 * @phba: Pointer to hba context object. 419 * @evt: Event object which need to be freed. 420 * 421 * This function frees the data structure required for posting 422 * events. 423 **/ 424 void 425 lpfc_free_fast_evt(struct lpfc_hba *phba, 426 struct lpfc_fast_path_event *evt) { 427 428 atomic_dec(&phba->fast_event_count); 429 kfree(evt); 430 } 431 432 /** 433 * lpfc_send_fastpath_evt - Posts events generated from fast path 434 * @phba: Pointer to hba context object. 435 * @evtp: Event data structure. 436 * 437 * This function is called from worker thread, when the interrupt 438 * context need to post an event. This function posts the event 439 * to fc transport netlink interface. 440 **/ 441 static void 442 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 443 struct lpfc_work_evt *evtp) 444 { 445 unsigned long evt_category, evt_sub_category; 446 struct lpfc_fast_path_event *fast_evt_data; 447 char *evt_data; 448 uint32_t evt_data_size; 449 struct Scsi_Host *shost; 450 451 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 452 work_evt); 453 454 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 455 evt_sub_category = (unsigned long) fast_evt_data->un. 456 fabric_evt.subcategory; 457 shost = lpfc_shost_from_vport(fast_evt_data->vport); 458 if (evt_category == FC_REG_FABRIC_EVENT) { 459 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 460 evt_data = (char *) &fast_evt_data->un.read_check_error; 461 evt_data_size = sizeof(fast_evt_data->un. 462 read_check_error); 463 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 464 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 465 evt_data = (char *) &fast_evt_data->un.fabric_evt; 466 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 467 } else { 468 lpfc_free_fast_evt(phba, fast_evt_data); 469 return; 470 } 471 } else if (evt_category == FC_REG_SCSI_EVENT) { 472 switch (evt_sub_category) { 473 case LPFC_EVENT_QFULL: 474 case LPFC_EVENT_DEVBSY: 475 evt_data = (char *) &fast_evt_data->un.scsi_evt; 476 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 477 break; 478 case LPFC_EVENT_CHECK_COND: 479 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 480 evt_data_size = sizeof(fast_evt_data->un. 481 check_cond_evt); 482 break; 483 case LPFC_EVENT_VARQUEDEPTH: 484 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 485 evt_data_size = sizeof(fast_evt_data->un. 486 queue_depth_evt); 487 break; 488 default: 489 lpfc_free_fast_evt(phba, fast_evt_data); 490 return; 491 } 492 } else { 493 lpfc_free_fast_evt(phba, fast_evt_data); 494 return; 495 } 496 497 fc_host_post_vendor_event(shost, 498 fc_get_event_number(), 499 evt_data_size, 500 evt_data, 501 LPFC_NL_VENDOR_ID); 502 503 lpfc_free_fast_evt(phba, fast_evt_data); 504 return; 505 } 506 507 static void 508 lpfc_work_list_done(struct lpfc_hba *phba) 509 { 510 struct lpfc_work_evt *evtp = NULL; 511 struct lpfc_nodelist *ndlp; 512 int free_evt; 513 int fcf_inuse; 514 uint32_t nlp_did; 515 516 spin_lock_irq(&phba->hbalock); 517 while (!list_empty(&phba->work_list)) { 518 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 519 evt_listp); 520 spin_unlock_irq(&phba->hbalock); 521 free_evt = 1; 522 switch (evtp->evt) { 523 case LPFC_EVT_ELS_RETRY: 524 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 525 lpfc_els_retry_delay_handler(ndlp); 526 free_evt = 0; /* evt is part of ndlp */ 527 /* decrement the node reference count held 528 * for this queued work 529 */ 530 lpfc_nlp_put(ndlp); 531 break; 532 case LPFC_EVT_DEV_LOSS: 533 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 534 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 535 free_evt = 0; 536 /* decrement the node reference count held for 537 * this queued work 538 */ 539 nlp_did = ndlp->nlp_DID; 540 lpfc_nlp_put(ndlp); 541 if (phba->sli_rev == LPFC_SLI_REV4) 542 lpfc_sli4_post_dev_loss_tmo_handler(phba, 543 fcf_inuse, 544 nlp_did); 545 break; 546 case LPFC_EVT_ONLINE: 547 if (phba->link_state < LPFC_LINK_DOWN) 548 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 549 else 550 *(int *) (evtp->evt_arg1) = 0; 551 complete((struct completion *)(evtp->evt_arg2)); 552 break; 553 case LPFC_EVT_OFFLINE_PREP: 554 if (phba->link_state >= LPFC_LINK_DOWN) 555 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 556 *(int *)(evtp->evt_arg1) = 0; 557 complete((struct completion *)(evtp->evt_arg2)); 558 break; 559 case LPFC_EVT_OFFLINE: 560 lpfc_offline(phba); 561 lpfc_sli_brdrestart(phba); 562 *(int *)(evtp->evt_arg1) = 563 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 564 lpfc_unblock_mgmt_io(phba); 565 complete((struct completion *)(evtp->evt_arg2)); 566 break; 567 case LPFC_EVT_WARM_START: 568 lpfc_offline(phba); 569 lpfc_reset_barrier(phba); 570 lpfc_sli_brdreset(phba); 571 lpfc_hba_down_post(phba); 572 *(int *)(evtp->evt_arg1) = 573 lpfc_sli_brdready(phba, HS_MBRDY); 574 lpfc_unblock_mgmt_io(phba); 575 complete((struct completion *)(evtp->evt_arg2)); 576 break; 577 case LPFC_EVT_KILL: 578 lpfc_offline(phba); 579 *(int *)(evtp->evt_arg1) 580 = (phba->pport->stopped) 581 ? 0 : lpfc_sli_brdkill(phba); 582 lpfc_unblock_mgmt_io(phba); 583 complete((struct completion *)(evtp->evt_arg2)); 584 break; 585 case LPFC_EVT_FASTPATH_MGMT_EVT: 586 lpfc_send_fastpath_evt(phba, evtp); 587 free_evt = 0; 588 break; 589 case LPFC_EVT_RESET_HBA: 590 if (!(phba->pport->load_flag & FC_UNLOADING)) 591 lpfc_reset_hba(phba); 592 break; 593 } 594 if (free_evt) 595 kfree(evtp); 596 spin_lock_irq(&phba->hbalock); 597 } 598 spin_unlock_irq(&phba->hbalock); 599 600 } 601 602 static void 603 lpfc_work_done(struct lpfc_hba *phba) 604 { 605 struct lpfc_sli_ring *pring; 606 uint32_t ha_copy, status, control, work_port_events; 607 struct lpfc_vport **vports; 608 struct lpfc_vport *vport; 609 int i; 610 611 spin_lock_irq(&phba->hbalock); 612 ha_copy = phba->work_ha; 613 phba->work_ha = 0; 614 spin_unlock_irq(&phba->hbalock); 615 616 /* First, try to post the next mailbox command to SLI4 device */ 617 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 618 lpfc_sli4_post_async_mbox(phba); 619 620 if (ha_copy & HA_ERATT) 621 /* Handle the error attention event */ 622 lpfc_handle_eratt(phba); 623 624 if (ha_copy & HA_MBATT) 625 lpfc_sli_handle_mb_event(phba); 626 627 if (ha_copy & HA_LATT) 628 lpfc_handle_latt(phba); 629 630 /* Process SLI4 events */ 631 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 632 if (phba->hba_flag & HBA_RRQ_ACTIVE) 633 lpfc_handle_rrq_active(phba); 634 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 635 lpfc_sli4_fcp_xri_abort_event_proc(phba); 636 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 637 lpfc_sli4_els_xri_abort_event_proc(phba); 638 if (phba->hba_flag & ASYNC_EVENT) 639 lpfc_sli4_async_event_proc(phba); 640 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 641 spin_lock_irq(&phba->hbalock); 642 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 643 spin_unlock_irq(&phba->hbalock); 644 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 645 } 646 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 647 lpfc_sli4_fcf_redisc_event_proc(phba); 648 } 649 650 vports = lpfc_create_vport_work_array(phba); 651 if (vports != NULL) 652 for (i = 0; i <= phba->max_vports; i++) { 653 /* 654 * We could have no vports in array if unloading, so if 655 * this happens then just use the pport 656 */ 657 if (vports[i] == NULL && i == 0) 658 vport = phba->pport; 659 else 660 vport = vports[i]; 661 if (vport == NULL) 662 break; 663 spin_lock_irq(&vport->work_port_lock); 664 work_port_events = vport->work_port_events; 665 vport->work_port_events &= ~work_port_events; 666 spin_unlock_irq(&vport->work_port_lock); 667 if (work_port_events & WORKER_DISC_TMO) 668 lpfc_disc_timeout_handler(vport); 669 if (work_port_events & WORKER_ELS_TMO) 670 lpfc_els_timeout_handler(vport); 671 if (work_port_events & WORKER_HB_TMO) 672 lpfc_hb_timeout_handler(phba); 673 if (work_port_events & WORKER_MBOX_TMO) 674 lpfc_mbox_timeout_handler(phba); 675 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 676 lpfc_unblock_fabric_iocbs(phba); 677 if (work_port_events & WORKER_FDMI_TMO) 678 lpfc_fdmi_timeout_handler(vport); 679 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 680 lpfc_ramp_down_queue_handler(phba); 681 if (work_port_events & WORKER_DELAYED_DISC_TMO) 682 lpfc_delayed_disc_timeout_handler(vport); 683 } 684 lpfc_destroy_vport_work_array(phba, vports); 685 686 pring = &phba->sli.ring[LPFC_ELS_RING]; 687 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 688 status >>= (4*LPFC_ELS_RING); 689 if ((status & HA_RXMASK) || 690 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 691 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 692 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 693 pring->flag |= LPFC_DEFERRED_RING_EVENT; 694 /* Set the lpfc data pending flag */ 695 set_bit(LPFC_DATA_READY, &phba->data_flags); 696 } else { 697 if (phba->link_state >= LPFC_LINK_UP) { 698 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 699 lpfc_sli_handle_slow_ring_event(phba, pring, 700 (status & 701 HA_RXMASK)); 702 } 703 } 704 if ((phba->sli_rev == LPFC_SLI_REV4) & 705 (!list_empty(&pring->txq))) 706 lpfc_drain_txq(phba); 707 /* 708 * Turn on Ring interrupts 709 */ 710 if (phba->sli_rev <= LPFC_SLI_REV3) { 711 spin_lock_irq(&phba->hbalock); 712 control = readl(phba->HCregaddr); 713 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 714 lpfc_debugfs_slow_ring_trc(phba, 715 "WRK Enable ring: cntl:x%x hacopy:x%x", 716 control, ha_copy, 0); 717 718 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 719 writel(control, phba->HCregaddr); 720 readl(phba->HCregaddr); /* flush */ 721 } else { 722 lpfc_debugfs_slow_ring_trc(phba, 723 "WRK Ring ok: cntl:x%x hacopy:x%x", 724 control, ha_copy, 0); 725 } 726 spin_unlock_irq(&phba->hbalock); 727 } 728 } 729 lpfc_work_list_done(phba); 730 } 731 732 int 733 lpfc_do_work(void *p) 734 { 735 struct lpfc_hba *phba = p; 736 int rc; 737 738 set_user_nice(current, MIN_NICE); 739 current->flags |= PF_NOFREEZE; 740 phba->data_flags = 0; 741 742 while (!kthread_should_stop()) { 743 /* wait and check worker queue activities */ 744 rc = wait_event_interruptible(phba->work_waitq, 745 (test_and_clear_bit(LPFC_DATA_READY, 746 &phba->data_flags) 747 || kthread_should_stop())); 748 /* Signal wakeup shall terminate the worker thread */ 749 if (rc) { 750 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 751 "0433 Wakeup on signal: rc=x%x\n", rc); 752 break; 753 } 754 755 /* Attend pending lpfc data processing */ 756 lpfc_work_done(phba); 757 } 758 phba->worker_thread = NULL; 759 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 760 "0432 Worker thread stopped.\n"); 761 return 0; 762 } 763 764 /* 765 * This is only called to handle FC worker events. Since this a rare 766 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 767 * embedding it in the IOCB. 768 */ 769 int 770 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 771 uint32_t evt) 772 { 773 struct lpfc_work_evt *evtp; 774 unsigned long flags; 775 776 /* 777 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 778 * be queued to worker thread for processing 779 */ 780 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 781 if (!evtp) 782 return 0; 783 784 evtp->evt_arg1 = arg1; 785 evtp->evt_arg2 = arg2; 786 evtp->evt = evt; 787 788 spin_lock_irqsave(&phba->hbalock, flags); 789 list_add_tail(&evtp->evt_listp, &phba->work_list); 790 spin_unlock_irqrestore(&phba->hbalock, flags); 791 792 lpfc_worker_wake_up(phba); 793 794 return 1; 795 } 796 797 void 798 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 799 { 800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 801 struct lpfc_hba *phba = vport->phba; 802 struct lpfc_nodelist *ndlp, *next_ndlp; 803 int rc; 804 805 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 806 if (!NLP_CHK_NODE_ACT(ndlp)) 807 continue; 808 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 809 continue; 810 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 811 ((vport->port_type == LPFC_NPIV_PORT) && 812 (ndlp->nlp_DID == NameServer_DID))) 813 lpfc_unreg_rpi(vport, ndlp); 814 815 /* Leave Fabric nodes alone on link down */ 816 if ((phba->sli_rev < LPFC_SLI_REV4) && 817 (!remove && ndlp->nlp_type & NLP_FABRIC)) 818 continue; 819 rc = lpfc_disc_state_machine(vport, ndlp, NULL, 820 remove 821 ? NLP_EVT_DEVICE_RM 822 : NLP_EVT_DEVICE_RECOVERY); 823 } 824 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 825 if (phba->sli_rev == LPFC_SLI_REV4) 826 lpfc_sli4_unreg_all_rpis(vport); 827 lpfc_mbx_unreg_vpi(vport); 828 spin_lock_irq(shost->host_lock); 829 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 830 spin_unlock_irq(shost->host_lock); 831 } 832 } 833 834 void 835 lpfc_port_link_failure(struct lpfc_vport *vport) 836 { 837 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 838 839 /* Cleanup any outstanding received buffers */ 840 lpfc_cleanup_rcv_buffers(vport); 841 842 /* Cleanup any outstanding RSCN activity */ 843 lpfc_els_flush_rscn(vport); 844 845 /* Cleanup any outstanding ELS commands */ 846 lpfc_els_flush_cmd(vport); 847 848 lpfc_cleanup_rpis(vport, 0); 849 850 /* Turn off discovery timer if its running */ 851 lpfc_can_disctmo(vport); 852 } 853 854 void 855 lpfc_linkdown_port(struct lpfc_vport *vport) 856 { 857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 858 859 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 860 861 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 862 "Link Down: state:x%x rtry:x%x flg:x%x", 863 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 864 865 lpfc_port_link_failure(vport); 866 867 /* Stop delayed Nport discovery */ 868 spin_lock_irq(shost->host_lock); 869 vport->fc_flag &= ~FC_DISC_DELAYED; 870 spin_unlock_irq(shost->host_lock); 871 del_timer_sync(&vport->delayed_disc_tmo); 872 } 873 874 int 875 lpfc_linkdown(struct lpfc_hba *phba) 876 { 877 struct lpfc_vport *vport = phba->pport; 878 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 879 struct lpfc_vport **vports; 880 LPFC_MBOXQ_t *mb; 881 int i; 882 883 if (phba->link_state == LPFC_LINK_DOWN) 884 return 0; 885 886 /* Block all SCSI stack I/Os */ 887 lpfc_scsi_dev_block(phba); 888 889 spin_lock_irq(&phba->hbalock); 890 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 891 spin_unlock_irq(&phba->hbalock); 892 if (phba->link_state > LPFC_LINK_DOWN) { 893 phba->link_state = LPFC_LINK_DOWN; 894 spin_lock_irq(shost->host_lock); 895 phba->pport->fc_flag &= ~FC_LBIT; 896 spin_unlock_irq(shost->host_lock); 897 } 898 vports = lpfc_create_vport_work_array(phba); 899 if (vports != NULL) 900 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 901 /* Issue a LINK DOWN event to all nodes */ 902 lpfc_linkdown_port(vports[i]); 903 } 904 lpfc_destroy_vport_work_array(phba, vports); 905 /* Clean up any firmware default rpi's */ 906 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 907 if (mb) { 908 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 909 mb->vport = vport; 910 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 911 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 912 == MBX_NOT_FINISHED) { 913 mempool_free(mb, phba->mbox_mem_pool); 914 } 915 } 916 917 /* Setup myDID for link up if we are in pt2pt mode */ 918 if (phba->pport->fc_flag & FC_PT2PT) { 919 phba->pport->fc_myDID = 0; 920 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 921 if (mb) { 922 lpfc_config_link(phba, mb); 923 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 924 mb->vport = vport; 925 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 926 == MBX_NOT_FINISHED) { 927 mempool_free(mb, phba->mbox_mem_pool); 928 } 929 } 930 spin_lock_irq(shost->host_lock); 931 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 932 spin_unlock_irq(shost->host_lock); 933 } 934 935 return 0; 936 } 937 938 static void 939 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 940 { 941 struct lpfc_nodelist *ndlp; 942 943 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 944 if (!NLP_CHK_NODE_ACT(ndlp)) 945 continue; 946 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 947 continue; 948 if (ndlp->nlp_type & NLP_FABRIC) { 949 /* On Linkup its safe to clean up the ndlp 950 * from Fabric connections. 951 */ 952 if (ndlp->nlp_DID != Fabric_DID) 953 lpfc_unreg_rpi(vport, ndlp); 954 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 955 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 956 /* Fail outstanding IO now since device is 957 * marked for PLOGI. 958 */ 959 lpfc_unreg_rpi(vport, ndlp); 960 } 961 } 962 } 963 964 static void 965 lpfc_linkup_port(struct lpfc_vport *vport) 966 { 967 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 968 struct lpfc_hba *phba = vport->phba; 969 970 if ((vport->load_flag & FC_UNLOADING) != 0) 971 return; 972 973 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 974 "Link Up: top:x%x speed:x%x flg:x%x", 975 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 976 977 /* If NPIV is not enabled, only bring the physical port up */ 978 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 979 (vport != phba->pport)) 980 return; 981 982 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 983 984 spin_lock_irq(shost->host_lock); 985 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 986 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 987 vport->fc_flag |= FC_NDISC_ACTIVE; 988 vport->fc_ns_retry = 0; 989 spin_unlock_irq(shost->host_lock); 990 991 if (vport->fc_flag & FC_LBIT) 992 lpfc_linkup_cleanup_nodes(vport); 993 994 } 995 996 static int 997 lpfc_linkup(struct lpfc_hba *phba) 998 { 999 struct lpfc_vport **vports; 1000 int i; 1001 1002 phba->link_state = LPFC_LINK_UP; 1003 1004 /* Unblock fabric iocbs if they are blocked */ 1005 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1006 del_timer_sync(&phba->fabric_block_timer); 1007 1008 vports = lpfc_create_vport_work_array(phba); 1009 if (vports != NULL) 1010 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1011 lpfc_linkup_port(vports[i]); 1012 lpfc_destroy_vport_work_array(phba, vports); 1013 1014 return 0; 1015 } 1016 1017 /* 1018 * This routine handles processing a CLEAR_LA mailbox 1019 * command upon completion. It is setup in the LPFC_MBOXQ 1020 * as the completion routine when the command is 1021 * handed off to the SLI layer. 1022 */ 1023 static void 1024 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1025 { 1026 struct lpfc_vport *vport = pmb->vport; 1027 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1028 struct lpfc_sli *psli = &phba->sli; 1029 MAILBOX_t *mb = &pmb->u.mb; 1030 uint32_t control; 1031 1032 /* Since we don't do discovery right now, turn these off here */ 1033 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1034 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1035 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1036 1037 /* Check for error */ 1038 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1039 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1040 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1041 "0320 CLEAR_LA mbxStatus error x%x hba " 1042 "state x%x\n", 1043 mb->mbxStatus, vport->port_state); 1044 phba->link_state = LPFC_HBA_ERROR; 1045 goto out; 1046 } 1047 1048 if (vport->port_type == LPFC_PHYSICAL_PORT) 1049 phba->link_state = LPFC_HBA_READY; 1050 1051 spin_lock_irq(&phba->hbalock); 1052 psli->sli_flag |= LPFC_PROCESS_LA; 1053 control = readl(phba->HCregaddr); 1054 control |= HC_LAINT_ENA; 1055 writel(control, phba->HCregaddr); 1056 readl(phba->HCregaddr); /* flush */ 1057 spin_unlock_irq(&phba->hbalock); 1058 mempool_free(pmb, phba->mbox_mem_pool); 1059 return; 1060 1061 out: 1062 /* Device Discovery completes */ 1063 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1064 "0225 Device Discovery completes\n"); 1065 mempool_free(pmb, phba->mbox_mem_pool); 1066 1067 spin_lock_irq(shost->host_lock); 1068 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1069 spin_unlock_irq(shost->host_lock); 1070 1071 lpfc_can_disctmo(vport); 1072 1073 /* turn on Link Attention interrupts */ 1074 1075 spin_lock_irq(&phba->hbalock); 1076 psli->sli_flag |= LPFC_PROCESS_LA; 1077 control = readl(phba->HCregaddr); 1078 control |= HC_LAINT_ENA; 1079 writel(control, phba->HCregaddr); 1080 readl(phba->HCregaddr); /* flush */ 1081 spin_unlock_irq(&phba->hbalock); 1082 1083 return; 1084 } 1085 1086 1087 static void 1088 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1089 { 1090 struct lpfc_vport *vport = pmb->vport; 1091 1092 if (pmb->u.mb.mbxStatus) 1093 goto out; 1094 1095 mempool_free(pmb, phba->mbox_mem_pool); 1096 1097 /* don't perform discovery for SLI4 loopback diagnostic test */ 1098 if ((phba->sli_rev == LPFC_SLI_REV4) && 1099 !(phba->hba_flag & HBA_FCOE_MODE) && 1100 (phba->link_flag & LS_LOOPBACK_MODE)) 1101 return; 1102 1103 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1104 vport->fc_flag & FC_PUBLIC_LOOP && 1105 !(vport->fc_flag & FC_LBIT)) { 1106 /* Need to wait for FAN - use discovery timer 1107 * for timeout. port_state is identically 1108 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1109 */ 1110 lpfc_set_disctmo(vport); 1111 return; 1112 } 1113 1114 /* Start discovery by sending a FLOGI. port_state is identically 1115 * LPFC_FLOGI while waiting for FLOGI cmpl 1116 */ 1117 if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI) 1118 lpfc_initial_flogi(vport); 1119 return; 1120 1121 out: 1122 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1123 "0306 CONFIG_LINK mbxStatus error x%x " 1124 "HBA state x%x\n", 1125 pmb->u.mb.mbxStatus, vport->port_state); 1126 mempool_free(pmb, phba->mbox_mem_pool); 1127 1128 lpfc_linkdown(phba); 1129 1130 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1131 "0200 CONFIG_LINK bad hba state x%x\n", 1132 vport->port_state); 1133 1134 lpfc_issue_clear_la(phba, vport); 1135 return; 1136 } 1137 1138 /** 1139 * lpfc_sli4_clear_fcf_rr_bmask 1140 * @phba pointer to the struct lpfc_hba for this port. 1141 * This fucnction resets the round robin bit mask and clears the 1142 * fcf priority list. The list deletions are done while holding the 1143 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1144 * from the lpfc_fcf_pri record. 1145 **/ 1146 void 1147 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1148 { 1149 struct lpfc_fcf_pri *fcf_pri; 1150 struct lpfc_fcf_pri *next_fcf_pri; 1151 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1152 spin_lock_irq(&phba->hbalock); 1153 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1154 &phba->fcf.fcf_pri_list, list) { 1155 list_del_init(&fcf_pri->list); 1156 fcf_pri->fcf_rec.flag = 0; 1157 } 1158 spin_unlock_irq(&phba->hbalock); 1159 } 1160 static void 1161 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1162 { 1163 struct lpfc_vport *vport = mboxq->vport; 1164 1165 if (mboxq->u.mb.mbxStatus) { 1166 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1167 "2017 REG_FCFI mbxStatus error x%x " 1168 "HBA state x%x\n", 1169 mboxq->u.mb.mbxStatus, vport->port_state); 1170 goto fail_out; 1171 } 1172 1173 /* Start FCoE discovery by sending a FLOGI. */ 1174 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1175 /* Set the FCFI registered flag */ 1176 spin_lock_irq(&phba->hbalock); 1177 phba->fcf.fcf_flag |= FCF_REGISTERED; 1178 spin_unlock_irq(&phba->hbalock); 1179 1180 /* If there is a pending FCoE event, restart FCF table scan. */ 1181 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1182 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1183 goto fail_out; 1184 1185 /* Mark successful completion of FCF table scan */ 1186 spin_lock_irq(&phba->hbalock); 1187 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1188 phba->hba_flag &= ~FCF_TS_INPROG; 1189 if (vport->port_state != LPFC_FLOGI) { 1190 phba->hba_flag |= FCF_RR_INPROG; 1191 spin_unlock_irq(&phba->hbalock); 1192 lpfc_issue_init_vfi(vport); 1193 goto out; 1194 } 1195 spin_unlock_irq(&phba->hbalock); 1196 goto out; 1197 1198 fail_out: 1199 spin_lock_irq(&phba->hbalock); 1200 phba->hba_flag &= ~FCF_RR_INPROG; 1201 spin_unlock_irq(&phba->hbalock); 1202 out: 1203 mempool_free(mboxq, phba->mbox_mem_pool); 1204 } 1205 1206 /** 1207 * lpfc_fab_name_match - Check if the fcf fabric name match. 1208 * @fab_name: pointer to fabric name. 1209 * @new_fcf_record: pointer to fcf record. 1210 * 1211 * This routine compare the fcf record's fabric name with provided 1212 * fabric name. If the fabric name are identical this function 1213 * returns 1 else return 0. 1214 **/ 1215 static uint32_t 1216 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1217 { 1218 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1219 return 0; 1220 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1221 return 0; 1222 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1223 return 0; 1224 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1225 return 0; 1226 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1227 return 0; 1228 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1229 return 0; 1230 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1231 return 0; 1232 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1233 return 0; 1234 return 1; 1235 } 1236 1237 /** 1238 * lpfc_sw_name_match - Check if the fcf switch name match. 1239 * @fab_name: pointer to fabric name. 1240 * @new_fcf_record: pointer to fcf record. 1241 * 1242 * This routine compare the fcf record's switch name with provided 1243 * switch name. If the switch name are identical this function 1244 * returns 1 else return 0. 1245 **/ 1246 static uint32_t 1247 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1248 { 1249 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1250 return 0; 1251 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1252 return 0; 1253 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1254 return 0; 1255 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1256 return 0; 1257 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1258 return 0; 1259 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1260 return 0; 1261 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1262 return 0; 1263 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1264 return 0; 1265 return 1; 1266 } 1267 1268 /** 1269 * lpfc_mac_addr_match - Check if the fcf mac address match. 1270 * @mac_addr: pointer to mac address. 1271 * @new_fcf_record: pointer to fcf record. 1272 * 1273 * This routine compare the fcf record's mac address with HBA's 1274 * FCF mac address. If the mac addresses are identical this function 1275 * returns 1 else return 0. 1276 **/ 1277 static uint32_t 1278 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1279 { 1280 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1281 return 0; 1282 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1283 return 0; 1284 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1285 return 0; 1286 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1287 return 0; 1288 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1289 return 0; 1290 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1291 return 0; 1292 return 1; 1293 } 1294 1295 static bool 1296 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1297 { 1298 return (curr_vlan_id == new_vlan_id); 1299 } 1300 1301 /** 1302 * lpfc_update_fcf_record - Update driver fcf record 1303 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1304 * @phba: pointer to lpfc hba data structure. 1305 * @fcf_index: Index for the lpfc_fcf_record. 1306 * @new_fcf_record: pointer to hba fcf record. 1307 * 1308 * This routine updates the driver FCF priority record from the new HBA FCF 1309 * record. This routine is called with the host lock held. 1310 **/ 1311 static void 1312 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1313 struct fcf_record *new_fcf_record 1314 ) 1315 { 1316 struct lpfc_fcf_pri *fcf_pri; 1317 1318 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1319 fcf_pri->fcf_rec.fcf_index = fcf_index; 1320 /* FCF record priority */ 1321 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1322 1323 } 1324 1325 /** 1326 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1327 * @fcf: pointer to driver fcf record. 1328 * @new_fcf_record: pointer to fcf record. 1329 * 1330 * This routine copies the FCF information from the FCF 1331 * record to lpfc_hba data structure. 1332 **/ 1333 static void 1334 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1335 struct fcf_record *new_fcf_record) 1336 { 1337 /* Fabric name */ 1338 fcf_rec->fabric_name[0] = 1339 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1340 fcf_rec->fabric_name[1] = 1341 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1342 fcf_rec->fabric_name[2] = 1343 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1344 fcf_rec->fabric_name[3] = 1345 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1346 fcf_rec->fabric_name[4] = 1347 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1348 fcf_rec->fabric_name[5] = 1349 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1350 fcf_rec->fabric_name[6] = 1351 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1352 fcf_rec->fabric_name[7] = 1353 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1354 /* Mac address */ 1355 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1356 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1357 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1358 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1359 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1360 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1361 /* FCF record index */ 1362 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1363 /* FCF record priority */ 1364 fcf_rec->priority = new_fcf_record->fip_priority; 1365 /* Switch name */ 1366 fcf_rec->switch_name[0] = 1367 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1368 fcf_rec->switch_name[1] = 1369 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1370 fcf_rec->switch_name[2] = 1371 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1372 fcf_rec->switch_name[3] = 1373 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1374 fcf_rec->switch_name[4] = 1375 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1376 fcf_rec->switch_name[5] = 1377 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1378 fcf_rec->switch_name[6] = 1379 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1380 fcf_rec->switch_name[7] = 1381 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1382 } 1383 1384 /** 1385 * lpfc_update_fcf_record - Update driver fcf record 1386 * @phba: pointer to lpfc hba data structure. 1387 * @fcf_rec: pointer to driver fcf record. 1388 * @new_fcf_record: pointer to hba fcf record. 1389 * @addr_mode: address mode to be set to the driver fcf record. 1390 * @vlan_id: vlan tag to be set to the driver fcf record. 1391 * @flag: flag bits to be set to the driver fcf record. 1392 * 1393 * This routine updates the driver FCF record from the new HBA FCF record 1394 * together with the address mode, vlan_id, and other informations. This 1395 * routine is called with the host lock held. 1396 **/ 1397 static void 1398 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1399 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1400 uint16_t vlan_id, uint32_t flag) 1401 { 1402 /* Copy the fields from the HBA's FCF record */ 1403 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1404 /* Update other fields of driver FCF record */ 1405 fcf_rec->addr_mode = addr_mode; 1406 fcf_rec->vlan_id = vlan_id; 1407 fcf_rec->flag |= (flag | RECORD_VALID); 1408 __lpfc_update_fcf_record_pri(phba, 1409 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1410 new_fcf_record); 1411 } 1412 1413 /** 1414 * lpfc_register_fcf - Register the FCF with hba. 1415 * @phba: pointer to lpfc hba data structure. 1416 * 1417 * This routine issues a register fcfi mailbox command to register 1418 * the fcf with HBA. 1419 **/ 1420 static void 1421 lpfc_register_fcf(struct lpfc_hba *phba) 1422 { 1423 LPFC_MBOXQ_t *fcf_mbxq; 1424 int rc; 1425 1426 spin_lock_irq(&phba->hbalock); 1427 /* If the FCF is not available do nothing. */ 1428 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1429 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1430 spin_unlock_irq(&phba->hbalock); 1431 return; 1432 } 1433 1434 /* The FCF is already registered, start discovery */ 1435 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1436 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1437 phba->hba_flag &= ~FCF_TS_INPROG; 1438 if (phba->pport->port_state != LPFC_FLOGI && 1439 phba->pport->fc_flag & FC_FABRIC) { 1440 phba->hba_flag |= FCF_RR_INPROG; 1441 spin_unlock_irq(&phba->hbalock); 1442 lpfc_initial_flogi(phba->pport); 1443 return; 1444 } 1445 spin_unlock_irq(&phba->hbalock); 1446 return; 1447 } 1448 spin_unlock_irq(&phba->hbalock); 1449 1450 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1451 if (!fcf_mbxq) { 1452 spin_lock_irq(&phba->hbalock); 1453 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1454 spin_unlock_irq(&phba->hbalock); 1455 return; 1456 } 1457 1458 lpfc_reg_fcfi(phba, fcf_mbxq); 1459 fcf_mbxq->vport = phba->pport; 1460 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1461 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1462 if (rc == MBX_NOT_FINISHED) { 1463 spin_lock_irq(&phba->hbalock); 1464 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1465 spin_unlock_irq(&phba->hbalock); 1466 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1467 } 1468 1469 return; 1470 } 1471 1472 /** 1473 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1474 * @phba: pointer to lpfc hba data structure. 1475 * @new_fcf_record: pointer to fcf record. 1476 * @boot_flag: Indicates if this record used by boot bios. 1477 * @addr_mode: The address mode to be used by this FCF 1478 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1479 * 1480 * This routine compare the fcf record with connect list obtained from the 1481 * config region to decide if this FCF can be used for SAN discovery. It returns 1482 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1483 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1484 * is used by boot bios and addr_mode will indicate the addressing mode to be 1485 * used for this FCF when the function returns. 1486 * If the FCF record need to be used with a particular vlan id, the vlan is 1487 * set in the vlan_id on return of the function. If not VLAN tagging need to 1488 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1489 **/ 1490 static int 1491 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1492 struct fcf_record *new_fcf_record, 1493 uint32_t *boot_flag, uint32_t *addr_mode, 1494 uint16_t *vlan_id) 1495 { 1496 struct lpfc_fcf_conn_entry *conn_entry; 1497 int i, j, fcf_vlan_id = 0; 1498 1499 /* Find the lowest VLAN id in the FCF record */ 1500 for (i = 0; i < 512; i++) { 1501 if (new_fcf_record->vlan_bitmap[i]) { 1502 fcf_vlan_id = i * 8; 1503 j = 0; 1504 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1505 j++; 1506 fcf_vlan_id++; 1507 } 1508 break; 1509 } 1510 } 1511 1512 /* FCF not valid/available or solicitation in progress */ 1513 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1514 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1515 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1516 return 0; 1517 1518 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1519 *boot_flag = 0; 1520 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1521 new_fcf_record); 1522 if (phba->valid_vlan) 1523 *vlan_id = phba->vlan_id; 1524 else 1525 *vlan_id = LPFC_FCOE_NULL_VID; 1526 return 1; 1527 } 1528 1529 /* 1530 * If there are no FCF connection table entry, driver connect to all 1531 * FCFs. 1532 */ 1533 if (list_empty(&phba->fcf_conn_rec_list)) { 1534 *boot_flag = 0; 1535 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1536 new_fcf_record); 1537 1538 /* 1539 * When there are no FCF connect entries, use driver's default 1540 * addressing mode - FPMA. 1541 */ 1542 if (*addr_mode & LPFC_FCF_FPMA) 1543 *addr_mode = LPFC_FCF_FPMA; 1544 1545 /* If FCF record report a vlan id use that vlan id */ 1546 if (fcf_vlan_id) 1547 *vlan_id = fcf_vlan_id; 1548 else 1549 *vlan_id = LPFC_FCOE_NULL_VID; 1550 return 1; 1551 } 1552 1553 list_for_each_entry(conn_entry, 1554 &phba->fcf_conn_rec_list, list) { 1555 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1556 continue; 1557 1558 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1559 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1560 new_fcf_record)) 1561 continue; 1562 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1563 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1564 new_fcf_record)) 1565 continue; 1566 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1567 /* 1568 * If the vlan bit map does not have the bit set for the 1569 * vlan id to be used, then it is not a match. 1570 */ 1571 if (!(new_fcf_record->vlan_bitmap 1572 [conn_entry->conn_rec.vlan_tag / 8] & 1573 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1574 continue; 1575 } 1576 1577 /* 1578 * If connection record does not support any addressing mode, 1579 * skip the FCF record. 1580 */ 1581 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1582 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1583 continue; 1584 1585 /* 1586 * Check if the connection record specifies a required 1587 * addressing mode. 1588 */ 1589 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1590 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1591 1592 /* 1593 * If SPMA required but FCF not support this continue. 1594 */ 1595 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1596 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1597 new_fcf_record) & LPFC_FCF_SPMA)) 1598 continue; 1599 1600 /* 1601 * If FPMA required but FCF not support this continue. 1602 */ 1603 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1604 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1605 new_fcf_record) & LPFC_FCF_FPMA)) 1606 continue; 1607 } 1608 1609 /* 1610 * This fcf record matches filtering criteria. 1611 */ 1612 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1613 *boot_flag = 1; 1614 else 1615 *boot_flag = 0; 1616 1617 /* 1618 * If user did not specify any addressing mode, or if the 1619 * preferred addressing mode specified by user is not supported 1620 * by FCF, allow fabric to pick the addressing mode. 1621 */ 1622 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1623 new_fcf_record); 1624 /* 1625 * If the user specified a required address mode, assign that 1626 * address mode 1627 */ 1628 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1629 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1630 *addr_mode = (conn_entry->conn_rec.flags & 1631 FCFCNCT_AM_SPMA) ? 1632 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1633 /* 1634 * If the user specified a preferred address mode, use the 1635 * addr mode only if FCF support the addr_mode. 1636 */ 1637 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1638 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1639 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1640 (*addr_mode & LPFC_FCF_SPMA)) 1641 *addr_mode = LPFC_FCF_SPMA; 1642 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1643 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1644 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1645 (*addr_mode & LPFC_FCF_FPMA)) 1646 *addr_mode = LPFC_FCF_FPMA; 1647 1648 /* If matching connect list has a vlan id, use it */ 1649 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1650 *vlan_id = conn_entry->conn_rec.vlan_tag; 1651 /* 1652 * If no vlan id is specified in connect list, use the vlan id 1653 * in the FCF record 1654 */ 1655 else if (fcf_vlan_id) 1656 *vlan_id = fcf_vlan_id; 1657 else 1658 *vlan_id = LPFC_FCOE_NULL_VID; 1659 1660 return 1; 1661 } 1662 1663 return 0; 1664 } 1665 1666 /** 1667 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1668 * @phba: pointer to lpfc hba data structure. 1669 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1670 * 1671 * This function check if there is any fcoe event pending while driver 1672 * scan FCF entries. If there is any pending event, it will restart the 1673 * FCF saning and return 1 else return 0. 1674 */ 1675 int 1676 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1677 { 1678 /* 1679 * If the Link is up and no FCoE events while in the 1680 * FCF discovery, no need to restart FCF discovery. 1681 */ 1682 if ((phba->link_state >= LPFC_LINK_UP) && 1683 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1684 return 0; 1685 1686 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1687 "2768 Pending link or FCF event during current " 1688 "handling of the previous event: link_state:x%x, " 1689 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1690 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1691 phba->fcoe_eventtag); 1692 1693 spin_lock_irq(&phba->hbalock); 1694 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1695 spin_unlock_irq(&phba->hbalock); 1696 1697 if (phba->link_state >= LPFC_LINK_UP) { 1698 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1699 "2780 Restart FCF table scan due to " 1700 "pending FCF event:evt_tag_at_scan:x%x, " 1701 "evt_tag_current:x%x\n", 1702 phba->fcoe_eventtag_at_fcf_scan, 1703 phba->fcoe_eventtag); 1704 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1705 } else { 1706 /* 1707 * Do not continue FCF discovery and clear FCF_TS_INPROG 1708 * flag 1709 */ 1710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1711 "2833 Stop FCF discovery process due to link " 1712 "state change (x%x)\n", phba->link_state); 1713 spin_lock_irq(&phba->hbalock); 1714 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1715 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1716 spin_unlock_irq(&phba->hbalock); 1717 } 1718 1719 /* Unregister the currently registered FCF if required */ 1720 if (unreg_fcf) { 1721 spin_lock_irq(&phba->hbalock); 1722 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1723 spin_unlock_irq(&phba->hbalock); 1724 lpfc_sli4_unregister_fcf(phba); 1725 } 1726 return 1; 1727 } 1728 1729 /** 1730 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1731 * @phba: pointer to lpfc hba data structure. 1732 * @fcf_cnt: number of eligible fcf record seen so far. 1733 * 1734 * This function makes an running random selection decision on FCF record to 1735 * use through a sequence of @fcf_cnt eligible FCF records with equal 1736 * probability. To perform integer manunipulation of random numbers with 1737 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1738 * from prandom_u32() are taken as the random random number generated. 1739 * 1740 * Returns true when outcome is for the newly read FCF record should be 1741 * chosen; otherwise, return false when outcome is for keeping the previously 1742 * chosen FCF record. 1743 **/ 1744 static bool 1745 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1746 { 1747 uint32_t rand_num; 1748 1749 /* Get 16-bit uniform random number */ 1750 rand_num = 0xFFFF & prandom_u32(); 1751 1752 /* Decision with probability 1/fcf_cnt */ 1753 if ((fcf_cnt * rand_num) < 0xFFFF) 1754 return true; 1755 else 1756 return false; 1757 } 1758 1759 /** 1760 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1761 * @phba: pointer to lpfc hba data structure. 1762 * @mboxq: pointer to mailbox object. 1763 * @next_fcf_index: pointer to holder of next fcf index. 1764 * 1765 * This routine parses the non-embedded fcf mailbox command by performing the 1766 * necessarily error checking, non-embedded read FCF record mailbox command 1767 * SGE parsing, and endianness swapping. 1768 * 1769 * Returns the pointer to the new FCF record in the non-embedded mailbox 1770 * command DMA memory if successfully, other NULL. 1771 */ 1772 static struct fcf_record * 1773 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1774 uint16_t *next_fcf_index) 1775 { 1776 void *virt_addr; 1777 dma_addr_t phys_addr; 1778 struct lpfc_mbx_sge sge; 1779 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1780 uint32_t shdr_status, shdr_add_status, if_type; 1781 union lpfc_sli4_cfg_shdr *shdr; 1782 struct fcf_record *new_fcf_record; 1783 1784 /* Get the first SGE entry from the non-embedded DMA memory. This 1785 * routine only uses a single SGE. 1786 */ 1787 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1788 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); 1789 if (unlikely(!mboxq->sge_array)) { 1790 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1791 "2524 Failed to get the non-embedded SGE " 1792 "virtual address\n"); 1793 return NULL; 1794 } 1795 virt_addr = mboxq->sge_array->addr[0]; 1796 1797 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1798 lpfc_sli_pcimem_bcopy(shdr, shdr, 1799 sizeof(union lpfc_sli4_cfg_shdr)); 1800 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1801 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1802 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1803 if (shdr_status || shdr_add_status) { 1804 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1805 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1806 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1807 "2726 READ_FCF_RECORD Indicates empty " 1808 "FCF table.\n"); 1809 else 1810 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1811 "2521 READ_FCF_RECORD mailbox failed " 1812 "with status x%x add_status x%x, " 1813 "mbx\n", shdr_status, shdr_add_status); 1814 return NULL; 1815 } 1816 1817 /* Interpreting the returned information of the FCF record */ 1818 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1819 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1820 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1821 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1822 new_fcf_record = (struct fcf_record *)(virt_addr + 1823 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1824 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1825 offsetof(struct fcf_record, vlan_bitmap)); 1826 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1827 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1828 1829 return new_fcf_record; 1830 } 1831 1832 /** 1833 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1834 * @phba: pointer to lpfc hba data structure. 1835 * @fcf_record: pointer to the fcf record. 1836 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1837 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1838 * 1839 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1840 * enabled. 1841 **/ 1842 static void 1843 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1844 struct fcf_record *fcf_record, 1845 uint16_t vlan_id, 1846 uint16_t next_fcf_index) 1847 { 1848 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1849 "2764 READ_FCF_RECORD:\n" 1850 "\tFCF_Index : x%x\n" 1851 "\tFCF_Avail : x%x\n" 1852 "\tFCF_Valid : x%x\n" 1853 "\tFCF_SOL : x%x\n" 1854 "\tFIP_Priority : x%x\n" 1855 "\tMAC_Provider : x%x\n" 1856 "\tLowest VLANID : x%x\n" 1857 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1858 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1859 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1860 "\tNext_FCF_Index: x%x\n", 1861 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1862 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1863 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1864 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1865 fcf_record->fip_priority, 1866 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1867 vlan_id, 1868 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1869 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1870 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1871 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1872 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1873 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1874 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1875 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1876 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1877 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1878 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1879 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1880 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1881 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1882 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1883 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1884 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1885 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1886 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1887 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1888 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1889 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1890 next_fcf_index); 1891 } 1892 1893 /** 1894 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1895 * @phba: pointer to lpfc hba data structure. 1896 * @fcf_rec: pointer to an existing FCF record. 1897 * @new_fcf_record: pointer to a new FCF record. 1898 * @new_vlan_id: vlan id from the new FCF record. 1899 * 1900 * This function performs matching test of a new FCF record against an existing 1901 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1902 * will not be used as part of the FCF record matching criteria. 1903 * 1904 * Returns true if all the fields matching, otherwise returns false. 1905 */ 1906 static bool 1907 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1908 struct lpfc_fcf_rec *fcf_rec, 1909 struct fcf_record *new_fcf_record, 1910 uint16_t new_vlan_id) 1911 { 1912 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1913 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1914 return false; 1915 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1916 return false; 1917 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1918 return false; 1919 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1920 return false; 1921 if (fcf_rec->priority != new_fcf_record->fip_priority) 1922 return false; 1923 return true; 1924 } 1925 1926 /** 1927 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1928 * @vport: Pointer to vport object. 1929 * @fcf_index: index to next fcf. 1930 * 1931 * This function processing the roundrobin fcf failover to next fcf index. 1932 * When this function is invoked, there will be a current fcf registered 1933 * for flogi. 1934 * Return: 0 for continue retrying flogi on currently registered fcf; 1935 * 1 for stop flogi on currently registered fcf; 1936 */ 1937 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1938 { 1939 struct lpfc_hba *phba = vport->phba; 1940 int rc; 1941 1942 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1943 spin_lock_irq(&phba->hbalock); 1944 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1945 spin_unlock_irq(&phba->hbalock); 1946 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1947 "2872 Devloss tmo with no eligible " 1948 "FCF, unregister in-use FCF (x%x) " 1949 "and rescan FCF table\n", 1950 phba->fcf.current_rec.fcf_indx); 1951 lpfc_unregister_fcf_rescan(phba); 1952 goto stop_flogi_current_fcf; 1953 } 1954 /* Mark the end to FLOGI roundrobin failover */ 1955 phba->hba_flag &= ~FCF_RR_INPROG; 1956 /* Allow action to new fcf asynchronous event */ 1957 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1958 spin_unlock_irq(&phba->hbalock); 1959 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1960 "2865 No FCF available, stop roundrobin FCF " 1961 "failover and change port state:x%x/x%x\n", 1962 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1963 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1964 goto stop_flogi_current_fcf; 1965 } else { 1966 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1967 "2794 Try FLOGI roundrobin FCF failover to " 1968 "(x%x)\n", fcf_index); 1969 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1970 if (rc) 1971 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1972 "2761 FLOGI roundrobin FCF failover " 1973 "failed (rc:x%x) to read FCF (x%x)\n", 1974 rc, phba->fcf.current_rec.fcf_indx); 1975 else 1976 goto stop_flogi_current_fcf; 1977 } 1978 return 0; 1979 1980 stop_flogi_current_fcf: 1981 lpfc_can_disctmo(vport); 1982 return 1; 1983 } 1984 1985 /** 1986 * lpfc_sli4_fcf_pri_list_del 1987 * @phba: pointer to lpfc hba data structure. 1988 * @fcf_index the index of the fcf record to delete 1989 * This routine checks the on list flag of the fcf_index to be deleted. 1990 * If it is one the list then it is removed from the list, and the flag 1991 * is cleared. This routine grab the hbalock before removing the fcf 1992 * record from the list. 1993 **/ 1994 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 1995 uint16_t fcf_index) 1996 { 1997 struct lpfc_fcf_pri *new_fcf_pri; 1998 1999 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2000 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2001 "3058 deleting idx x%x pri x%x flg x%x\n", 2002 fcf_index, new_fcf_pri->fcf_rec.priority, 2003 new_fcf_pri->fcf_rec.flag); 2004 spin_lock_irq(&phba->hbalock); 2005 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2006 if (phba->fcf.current_rec.priority == 2007 new_fcf_pri->fcf_rec.priority) 2008 phba->fcf.eligible_fcf_cnt--; 2009 list_del_init(&new_fcf_pri->list); 2010 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2011 } 2012 spin_unlock_irq(&phba->hbalock); 2013 } 2014 2015 /** 2016 * lpfc_sli4_set_fcf_flogi_fail 2017 * @phba: pointer to lpfc hba data structure. 2018 * @fcf_index the index of the fcf record to update 2019 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2020 * flag so the the round robin slection for the particular priority level 2021 * will try a different fcf record that does not have this bit set. 2022 * If the fcf record is re-read for any reason this flag is cleared brfore 2023 * adding it to the priority list. 2024 **/ 2025 void 2026 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2027 { 2028 struct lpfc_fcf_pri *new_fcf_pri; 2029 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2030 spin_lock_irq(&phba->hbalock); 2031 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2032 spin_unlock_irq(&phba->hbalock); 2033 } 2034 2035 /** 2036 * lpfc_sli4_fcf_pri_list_add 2037 * @phba: pointer to lpfc hba data structure. 2038 * @fcf_index the index of the fcf record to add 2039 * This routine checks the priority of the fcf_index to be added. 2040 * If it is a lower priority than the current head of the fcf_pri list 2041 * then it is added to the list in the right order. 2042 * If it is the same priority as the current head of the list then it 2043 * is added to the head of the list and its bit in the rr_bmask is set. 2044 * If the fcf_index to be added is of a higher priority than the current 2045 * head of the list then the rr_bmask is cleared, its bit is set in the 2046 * rr_bmask and it is added to the head of the list. 2047 * returns: 2048 * 0=success 1=failure 2049 **/ 2050 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2051 uint16_t fcf_index, 2052 struct fcf_record *new_fcf_record) 2053 { 2054 uint16_t current_fcf_pri; 2055 uint16_t last_index; 2056 struct lpfc_fcf_pri *fcf_pri; 2057 struct lpfc_fcf_pri *next_fcf_pri; 2058 struct lpfc_fcf_pri *new_fcf_pri; 2059 int ret; 2060 2061 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2062 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2063 "3059 adding idx x%x pri x%x flg x%x\n", 2064 fcf_index, new_fcf_record->fip_priority, 2065 new_fcf_pri->fcf_rec.flag); 2066 spin_lock_irq(&phba->hbalock); 2067 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2068 list_del_init(&new_fcf_pri->list); 2069 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2070 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2071 if (list_empty(&phba->fcf.fcf_pri_list)) { 2072 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2073 ret = lpfc_sli4_fcf_rr_index_set(phba, 2074 new_fcf_pri->fcf_rec.fcf_index); 2075 goto out; 2076 } 2077 2078 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2079 LPFC_SLI4_FCF_TBL_INDX_MAX); 2080 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2081 ret = 0; /* Empty rr list */ 2082 goto out; 2083 } 2084 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2085 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2086 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2087 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2088 memset(phba->fcf.fcf_rr_bmask, 0, 2089 sizeof(*phba->fcf.fcf_rr_bmask)); 2090 /* fcfs_at_this_priority_level = 1; */ 2091 phba->fcf.eligible_fcf_cnt = 1; 2092 } else 2093 /* fcfs_at_this_priority_level++; */ 2094 phba->fcf.eligible_fcf_cnt++; 2095 ret = lpfc_sli4_fcf_rr_index_set(phba, 2096 new_fcf_pri->fcf_rec.fcf_index); 2097 goto out; 2098 } 2099 2100 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2101 &phba->fcf.fcf_pri_list, list) { 2102 if (new_fcf_pri->fcf_rec.priority <= 2103 fcf_pri->fcf_rec.priority) { 2104 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2105 list_add(&new_fcf_pri->list, 2106 &phba->fcf.fcf_pri_list); 2107 else 2108 list_add(&new_fcf_pri->list, 2109 &((struct lpfc_fcf_pri *) 2110 fcf_pri->list.prev)->list); 2111 ret = 0; 2112 goto out; 2113 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2114 || new_fcf_pri->fcf_rec.priority < 2115 next_fcf_pri->fcf_rec.priority) { 2116 list_add(&new_fcf_pri->list, &fcf_pri->list); 2117 ret = 0; 2118 goto out; 2119 } 2120 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2121 continue; 2122 2123 } 2124 ret = 1; 2125 out: 2126 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2127 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2128 spin_unlock_irq(&phba->hbalock); 2129 return ret; 2130 } 2131 2132 /** 2133 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2134 * @phba: pointer to lpfc hba data structure. 2135 * @mboxq: pointer to mailbox object. 2136 * 2137 * This function iterates through all the fcf records available in 2138 * HBA and chooses the optimal FCF record for discovery. After finding 2139 * the FCF for discovery it registers the FCF record and kicks start 2140 * discovery. 2141 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2142 * use an FCF record which matches fabric name and mac address of the 2143 * currently used FCF record. 2144 * If the driver supports only one FCF, it will try to use the FCF record 2145 * used by BOOT_BIOS. 2146 */ 2147 void 2148 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2149 { 2150 struct fcf_record *new_fcf_record; 2151 uint32_t boot_flag, addr_mode; 2152 uint16_t fcf_index, next_fcf_index; 2153 struct lpfc_fcf_rec *fcf_rec = NULL; 2154 uint16_t vlan_id; 2155 bool select_new_fcf; 2156 int rc; 2157 2158 /* If there is pending FCoE event restart FCF table scan */ 2159 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2160 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2161 return; 2162 } 2163 2164 /* Parse the FCF record from the non-embedded mailbox command */ 2165 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2166 &next_fcf_index); 2167 if (!new_fcf_record) { 2168 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2169 "2765 Mailbox command READ_FCF_RECORD " 2170 "failed to retrieve a FCF record.\n"); 2171 /* Let next new FCF event trigger fast failover */ 2172 spin_lock_irq(&phba->hbalock); 2173 phba->hba_flag &= ~FCF_TS_INPROG; 2174 spin_unlock_irq(&phba->hbalock); 2175 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2176 return; 2177 } 2178 2179 /* Check the FCF record against the connection list */ 2180 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2181 &addr_mode, &vlan_id); 2182 2183 /* Log the FCF record information if turned on */ 2184 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2185 next_fcf_index); 2186 2187 /* 2188 * If the fcf record does not match with connect list entries 2189 * read the next entry; otherwise, this is an eligible FCF 2190 * record for roundrobin FCF failover. 2191 */ 2192 if (!rc) { 2193 lpfc_sli4_fcf_pri_list_del(phba, 2194 bf_get(lpfc_fcf_record_fcf_index, 2195 new_fcf_record)); 2196 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2197 "2781 FCF (x%x) failed connection " 2198 "list check: (x%x/x%x/%x)\n", 2199 bf_get(lpfc_fcf_record_fcf_index, 2200 new_fcf_record), 2201 bf_get(lpfc_fcf_record_fcf_avail, 2202 new_fcf_record), 2203 bf_get(lpfc_fcf_record_fcf_valid, 2204 new_fcf_record), 2205 bf_get(lpfc_fcf_record_fcf_sol, 2206 new_fcf_record)); 2207 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2208 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2209 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2210 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2211 phba->fcf.current_rec.fcf_indx) { 2212 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2213 "2862 FCF (x%x) matches property " 2214 "of in-use FCF (x%x)\n", 2215 bf_get(lpfc_fcf_record_fcf_index, 2216 new_fcf_record), 2217 phba->fcf.current_rec.fcf_indx); 2218 goto read_next_fcf; 2219 } 2220 /* 2221 * In case the current in-use FCF record becomes 2222 * invalid/unavailable during FCF discovery that 2223 * was not triggered by fast FCF failover process, 2224 * treat it as fast FCF failover. 2225 */ 2226 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2227 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2228 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2229 "2835 Invalid in-use FCF " 2230 "(x%x), enter FCF failover " 2231 "table scan.\n", 2232 phba->fcf.current_rec.fcf_indx); 2233 spin_lock_irq(&phba->hbalock); 2234 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2235 spin_unlock_irq(&phba->hbalock); 2236 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2237 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2238 LPFC_FCOE_FCF_GET_FIRST); 2239 return; 2240 } 2241 } 2242 goto read_next_fcf; 2243 } else { 2244 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2245 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2246 new_fcf_record); 2247 if (rc) 2248 goto read_next_fcf; 2249 } 2250 2251 /* 2252 * If this is not the first FCF discovery of the HBA, use last 2253 * FCF record for the discovery. The condition that a rescan 2254 * matches the in-use FCF record: fabric name, switch name, mac 2255 * address, and vlan_id. 2256 */ 2257 spin_lock_irq(&phba->hbalock); 2258 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2259 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2260 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2261 new_fcf_record, vlan_id)) { 2262 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2263 phba->fcf.current_rec.fcf_indx) { 2264 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2265 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2266 /* Stop FCF redisc wait timer */ 2267 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2268 phba); 2269 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2270 /* Fast failover, mark completed */ 2271 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2272 spin_unlock_irq(&phba->hbalock); 2273 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2274 "2836 New FCF matches in-use " 2275 "FCF (x%x), port_state:x%x, " 2276 "fc_flag:x%x\n", 2277 phba->fcf.current_rec.fcf_indx, 2278 phba->pport->port_state, 2279 phba->pport->fc_flag); 2280 goto out; 2281 } else 2282 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2283 "2863 New FCF (x%x) matches " 2284 "property of in-use FCF (x%x)\n", 2285 bf_get(lpfc_fcf_record_fcf_index, 2286 new_fcf_record), 2287 phba->fcf.current_rec.fcf_indx); 2288 } 2289 /* 2290 * Read next FCF record from HBA searching for the matching 2291 * with in-use record only if not during the fast failover 2292 * period. In case of fast failover period, it shall try to 2293 * determine whether the FCF record just read should be the 2294 * next candidate. 2295 */ 2296 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2297 spin_unlock_irq(&phba->hbalock); 2298 goto read_next_fcf; 2299 } 2300 } 2301 /* 2302 * Update on failover FCF record only if it's in FCF fast-failover 2303 * period; otherwise, update on current FCF record. 2304 */ 2305 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2306 fcf_rec = &phba->fcf.failover_rec; 2307 else 2308 fcf_rec = &phba->fcf.current_rec; 2309 2310 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2311 /* 2312 * If the driver FCF record does not have boot flag 2313 * set and new hba fcf record has boot flag set, use 2314 * the new hba fcf record. 2315 */ 2316 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2317 /* Choose this FCF record */ 2318 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2319 "2837 Update current FCF record " 2320 "(x%x) with new FCF record (x%x)\n", 2321 fcf_rec->fcf_indx, 2322 bf_get(lpfc_fcf_record_fcf_index, 2323 new_fcf_record)); 2324 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2325 addr_mode, vlan_id, BOOT_ENABLE); 2326 spin_unlock_irq(&phba->hbalock); 2327 goto read_next_fcf; 2328 } 2329 /* 2330 * If the driver FCF record has boot flag set and the 2331 * new hba FCF record does not have boot flag, read 2332 * the next FCF record. 2333 */ 2334 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2335 spin_unlock_irq(&phba->hbalock); 2336 goto read_next_fcf; 2337 } 2338 /* 2339 * If the new hba FCF record has lower priority value 2340 * than the driver FCF record, use the new record. 2341 */ 2342 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2343 /* Choose the new FCF record with lower priority */ 2344 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2345 "2838 Update current FCF record " 2346 "(x%x) with new FCF record (x%x)\n", 2347 fcf_rec->fcf_indx, 2348 bf_get(lpfc_fcf_record_fcf_index, 2349 new_fcf_record)); 2350 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2351 addr_mode, vlan_id, 0); 2352 /* Reset running random FCF selection count */ 2353 phba->fcf.eligible_fcf_cnt = 1; 2354 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2355 /* Update running random FCF selection count */ 2356 phba->fcf.eligible_fcf_cnt++; 2357 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2358 phba->fcf.eligible_fcf_cnt); 2359 if (select_new_fcf) { 2360 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2361 "2839 Update current FCF record " 2362 "(x%x) with new FCF record (x%x)\n", 2363 fcf_rec->fcf_indx, 2364 bf_get(lpfc_fcf_record_fcf_index, 2365 new_fcf_record)); 2366 /* Choose the new FCF by random selection */ 2367 __lpfc_update_fcf_record(phba, fcf_rec, 2368 new_fcf_record, 2369 addr_mode, vlan_id, 0); 2370 } 2371 } 2372 spin_unlock_irq(&phba->hbalock); 2373 goto read_next_fcf; 2374 } 2375 /* 2376 * This is the first suitable FCF record, choose this record for 2377 * initial best-fit FCF. 2378 */ 2379 if (fcf_rec) { 2380 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2381 "2840 Update initial FCF candidate " 2382 "with FCF (x%x)\n", 2383 bf_get(lpfc_fcf_record_fcf_index, 2384 new_fcf_record)); 2385 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2386 addr_mode, vlan_id, (boot_flag ? 2387 BOOT_ENABLE : 0)); 2388 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2389 /* Setup initial running random FCF selection count */ 2390 phba->fcf.eligible_fcf_cnt = 1; 2391 } 2392 spin_unlock_irq(&phba->hbalock); 2393 goto read_next_fcf; 2394 2395 read_next_fcf: 2396 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2397 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2398 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2399 /* 2400 * Case of FCF fast failover scan 2401 */ 2402 2403 /* 2404 * It has not found any suitable FCF record, cancel 2405 * FCF scan inprogress, and do nothing 2406 */ 2407 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2408 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2409 "2782 No suitable FCF found: " 2410 "(x%x/x%x)\n", 2411 phba->fcoe_eventtag_at_fcf_scan, 2412 bf_get(lpfc_fcf_record_fcf_index, 2413 new_fcf_record)); 2414 spin_lock_irq(&phba->hbalock); 2415 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2416 phba->hba_flag &= ~FCF_TS_INPROG; 2417 spin_unlock_irq(&phba->hbalock); 2418 /* Unregister in-use FCF and rescan */ 2419 lpfc_printf_log(phba, KERN_INFO, 2420 LOG_FIP, 2421 "2864 On devloss tmo " 2422 "unreg in-use FCF and " 2423 "rescan FCF table\n"); 2424 lpfc_unregister_fcf_rescan(phba); 2425 return; 2426 } 2427 /* 2428 * Let next new FCF event trigger fast failover 2429 */ 2430 phba->hba_flag &= ~FCF_TS_INPROG; 2431 spin_unlock_irq(&phba->hbalock); 2432 return; 2433 } 2434 /* 2435 * It has found a suitable FCF record that is not 2436 * the same as in-use FCF record, unregister the 2437 * in-use FCF record, replace the in-use FCF record 2438 * with the new FCF record, mark FCF fast failover 2439 * completed, and then start register the new FCF 2440 * record. 2441 */ 2442 2443 /* Unregister the current in-use FCF record */ 2444 lpfc_unregister_fcf(phba); 2445 2446 /* Replace in-use record with the new record */ 2447 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2448 "2842 Replace in-use FCF (x%x) " 2449 "with failover FCF (x%x)\n", 2450 phba->fcf.current_rec.fcf_indx, 2451 phba->fcf.failover_rec.fcf_indx); 2452 memcpy(&phba->fcf.current_rec, 2453 &phba->fcf.failover_rec, 2454 sizeof(struct lpfc_fcf_rec)); 2455 /* 2456 * Mark the fast FCF failover rediscovery completed 2457 * and the start of the first round of the roundrobin 2458 * FCF failover. 2459 */ 2460 spin_lock_irq(&phba->hbalock); 2461 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2462 spin_unlock_irq(&phba->hbalock); 2463 /* Register to the new FCF record */ 2464 lpfc_register_fcf(phba); 2465 } else { 2466 /* 2467 * In case of transaction period to fast FCF failover, 2468 * do nothing when search to the end of the FCF table. 2469 */ 2470 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2471 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2472 return; 2473 2474 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2475 phba->fcf.fcf_flag & FCF_IN_USE) { 2476 /* 2477 * In case the current in-use FCF record no 2478 * longer existed during FCF discovery that 2479 * was not triggered by fast FCF failover 2480 * process, treat it as fast FCF failover. 2481 */ 2482 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2483 "2841 In-use FCF record (x%x) " 2484 "not reported, entering fast " 2485 "FCF failover mode scanning.\n", 2486 phba->fcf.current_rec.fcf_indx); 2487 spin_lock_irq(&phba->hbalock); 2488 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2489 spin_unlock_irq(&phba->hbalock); 2490 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2491 LPFC_FCOE_FCF_GET_FIRST); 2492 return; 2493 } 2494 /* Register to the new FCF record */ 2495 lpfc_register_fcf(phba); 2496 } 2497 } else 2498 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2499 return; 2500 2501 out: 2502 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2503 lpfc_register_fcf(phba); 2504 2505 return; 2506 } 2507 2508 /** 2509 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2510 * @phba: pointer to lpfc hba data structure. 2511 * @mboxq: pointer to mailbox object. 2512 * 2513 * This is the callback function for FLOGI failure roundrobin FCF failover 2514 * read FCF record mailbox command from the eligible FCF record bmask for 2515 * performing the failover. If the FCF read back is not valid/available, it 2516 * fails through to retrying FLOGI to the currently registered FCF again. 2517 * Otherwise, if the FCF read back is valid and available, it will set the 2518 * newly read FCF record to the failover FCF record, unregister currently 2519 * registered FCF record, copy the failover FCF record to the current 2520 * FCF record, and then register the current FCF record before proceeding 2521 * to trying FLOGI on the new failover FCF. 2522 */ 2523 void 2524 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2525 { 2526 struct fcf_record *new_fcf_record; 2527 uint32_t boot_flag, addr_mode; 2528 uint16_t next_fcf_index, fcf_index; 2529 uint16_t current_fcf_index; 2530 uint16_t vlan_id; 2531 int rc; 2532 2533 /* If link state is not up, stop the roundrobin failover process */ 2534 if (phba->link_state < LPFC_LINK_UP) { 2535 spin_lock_irq(&phba->hbalock); 2536 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2537 phba->hba_flag &= ~FCF_RR_INPROG; 2538 spin_unlock_irq(&phba->hbalock); 2539 goto out; 2540 } 2541 2542 /* Parse the FCF record from the non-embedded mailbox command */ 2543 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2544 &next_fcf_index); 2545 if (!new_fcf_record) { 2546 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2547 "2766 Mailbox command READ_FCF_RECORD " 2548 "failed to retrieve a FCF record. " 2549 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2550 phba->fcf.fcf_flag); 2551 lpfc_unregister_fcf_rescan(phba); 2552 goto out; 2553 } 2554 2555 /* Get the needed parameters from FCF record */ 2556 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2557 &addr_mode, &vlan_id); 2558 2559 /* Log the FCF record information if turned on */ 2560 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2561 next_fcf_index); 2562 2563 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2564 if (!rc) { 2565 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2566 "2848 Remove ineligible FCF (x%x) from " 2567 "from roundrobin bmask\n", fcf_index); 2568 /* Clear roundrobin bmask bit for ineligible FCF */ 2569 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2570 /* Perform next round of roundrobin FCF failover */ 2571 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2572 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2573 if (rc) 2574 goto out; 2575 goto error_out; 2576 } 2577 2578 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2579 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2580 "2760 Perform FLOGI roundrobin FCF failover: " 2581 "FCF (x%x) back to FCF (x%x)\n", 2582 phba->fcf.current_rec.fcf_indx, fcf_index); 2583 /* Wait 500 ms before retrying FLOGI to current FCF */ 2584 msleep(500); 2585 lpfc_issue_init_vfi(phba->pport); 2586 goto out; 2587 } 2588 2589 /* Upload new FCF record to the failover FCF record */ 2590 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2591 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2592 phba->fcf.failover_rec.fcf_indx, fcf_index); 2593 spin_lock_irq(&phba->hbalock); 2594 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2595 new_fcf_record, addr_mode, vlan_id, 2596 (boot_flag ? BOOT_ENABLE : 0)); 2597 spin_unlock_irq(&phba->hbalock); 2598 2599 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2600 2601 /* Unregister the current in-use FCF record */ 2602 lpfc_unregister_fcf(phba); 2603 2604 /* Replace in-use record with the new record */ 2605 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2606 sizeof(struct lpfc_fcf_rec)); 2607 2608 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2609 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2610 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2611 2612 error_out: 2613 lpfc_register_fcf(phba); 2614 out: 2615 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2616 } 2617 2618 /** 2619 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2620 * @phba: pointer to lpfc hba data structure. 2621 * @mboxq: pointer to mailbox object. 2622 * 2623 * This is the callback function of read FCF record mailbox command for 2624 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2625 * failover when a new FCF event happened. If the FCF read back is 2626 * valid/available and it passes the connection list check, it updates 2627 * the bmask for the eligible FCF record for roundrobin failover. 2628 */ 2629 void 2630 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2631 { 2632 struct fcf_record *new_fcf_record; 2633 uint32_t boot_flag, addr_mode; 2634 uint16_t fcf_index, next_fcf_index; 2635 uint16_t vlan_id; 2636 int rc; 2637 2638 /* If link state is not up, no need to proceed */ 2639 if (phba->link_state < LPFC_LINK_UP) 2640 goto out; 2641 2642 /* If FCF discovery period is over, no need to proceed */ 2643 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2644 goto out; 2645 2646 /* Parse the FCF record from the non-embedded mailbox command */ 2647 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2648 &next_fcf_index); 2649 if (!new_fcf_record) { 2650 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2651 "2767 Mailbox command READ_FCF_RECORD " 2652 "failed to retrieve a FCF record.\n"); 2653 goto out; 2654 } 2655 2656 /* Check the connection list for eligibility */ 2657 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2658 &addr_mode, &vlan_id); 2659 2660 /* Log the FCF record information if turned on */ 2661 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2662 next_fcf_index); 2663 2664 if (!rc) 2665 goto out; 2666 2667 /* Update the eligible FCF record index bmask */ 2668 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2669 2670 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2671 2672 out: 2673 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2674 } 2675 2676 /** 2677 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2678 * @phba: pointer to lpfc hba data structure. 2679 * @mboxq: pointer to mailbox data structure. 2680 * 2681 * This function handles completion of init vfi mailbox command. 2682 */ 2683 static void 2684 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2685 { 2686 struct lpfc_vport *vport = mboxq->vport; 2687 2688 /* 2689 * VFI not supported on interface type 0, just do the flogi 2690 * Also continue if the VFI is in use - just use the same one. 2691 */ 2692 if (mboxq->u.mb.mbxStatus && 2693 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2694 LPFC_SLI_INTF_IF_TYPE_0) && 2695 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2696 lpfc_printf_vlog(vport, KERN_ERR, 2697 LOG_MBOX, 2698 "2891 Init VFI mailbox failed 0x%x\n", 2699 mboxq->u.mb.mbxStatus); 2700 mempool_free(mboxq, phba->mbox_mem_pool); 2701 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2702 return; 2703 } 2704 2705 lpfc_initial_flogi(vport); 2706 mempool_free(mboxq, phba->mbox_mem_pool); 2707 return; 2708 } 2709 2710 /** 2711 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2712 * @vport: pointer to lpfc_vport data structure. 2713 * 2714 * This function issue a init_vfi mailbox command to initialize the VFI and 2715 * VPI for the physical port. 2716 */ 2717 void 2718 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2719 { 2720 LPFC_MBOXQ_t *mboxq; 2721 int rc; 2722 struct lpfc_hba *phba = vport->phba; 2723 2724 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2725 if (!mboxq) { 2726 lpfc_printf_vlog(vport, KERN_ERR, 2727 LOG_MBOX, "2892 Failed to allocate " 2728 "init_vfi mailbox\n"); 2729 return; 2730 } 2731 lpfc_init_vfi(mboxq, vport); 2732 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2733 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2734 if (rc == MBX_NOT_FINISHED) { 2735 lpfc_printf_vlog(vport, KERN_ERR, 2736 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2737 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2738 } 2739 } 2740 2741 /** 2742 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2743 * @phba: pointer to lpfc hba data structure. 2744 * @mboxq: pointer to mailbox data structure. 2745 * 2746 * This function handles completion of init vpi mailbox command. 2747 */ 2748 void 2749 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2750 { 2751 struct lpfc_vport *vport = mboxq->vport; 2752 struct lpfc_nodelist *ndlp; 2753 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2754 2755 if (mboxq->u.mb.mbxStatus) { 2756 lpfc_printf_vlog(vport, KERN_ERR, 2757 LOG_MBOX, 2758 "2609 Init VPI mailbox failed 0x%x\n", 2759 mboxq->u.mb.mbxStatus); 2760 mempool_free(mboxq, phba->mbox_mem_pool); 2761 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2762 return; 2763 } 2764 spin_lock_irq(shost->host_lock); 2765 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2766 spin_unlock_irq(shost->host_lock); 2767 2768 /* If this port is physical port or FDISC is done, do reg_vpi */ 2769 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2770 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2771 if (!ndlp) 2772 lpfc_printf_vlog(vport, KERN_ERR, 2773 LOG_DISCOVERY, 2774 "2731 Cannot find fabric " 2775 "controller node\n"); 2776 else 2777 lpfc_register_new_vport(phba, vport, ndlp); 2778 mempool_free(mboxq, phba->mbox_mem_pool); 2779 return; 2780 } 2781 2782 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2783 lpfc_initial_fdisc(vport); 2784 else { 2785 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2786 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2787 "2606 No NPIV Fabric support\n"); 2788 } 2789 mempool_free(mboxq, phba->mbox_mem_pool); 2790 return; 2791 } 2792 2793 /** 2794 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2795 * @vport: pointer to lpfc_vport data structure. 2796 * 2797 * This function issue a init_vpi mailbox command to initialize 2798 * VPI for the vport. 2799 */ 2800 void 2801 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2802 { 2803 LPFC_MBOXQ_t *mboxq; 2804 int rc, vpi; 2805 2806 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2807 vpi = lpfc_alloc_vpi(vport->phba); 2808 if (!vpi) { 2809 lpfc_printf_vlog(vport, KERN_ERR, 2810 LOG_MBOX, 2811 "3303 Failed to obtain vport vpi\n"); 2812 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2813 return; 2814 } 2815 vport->vpi = vpi; 2816 } 2817 2818 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2819 if (!mboxq) { 2820 lpfc_printf_vlog(vport, KERN_ERR, 2821 LOG_MBOX, "2607 Failed to allocate " 2822 "init_vpi mailbox\n"); 2823 return; 2824 } 2825 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2826 mboxq->vport = vport; 2827 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2828 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2829 if (rc == MBX_NOT_FINISHED) { 2830 lpfc_printf_vlog(vport, KERN_ERR, 2831 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2832 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2833 } 2834 } 2835 2836 /** 2837 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2838 * @phba: pointer to lpfc hba data structure. 2839 * 2840 * This function loops through the list of vports on the @phba and issues an 2841 * FDISC if possible. 2842 */ 2843 void 2844 lpfc_start_fdiscs(struct lpfc_hba *phba) 2845 { 2846 struct lpfc_vport **vports; 2847 int i; 2848 2849 vports = lpfc_create_vport_work_array(phba); 2850 if (vports != NULL) { 2851 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2852 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2853 continue; 2854 /* There are no vpi for this vport */ 2855 if (vports[i]->vpi > phba->max_vpi) { 2856 lpfc_vport_set_state(vports[i], 2857 FC_VPORT_FAILED); 2858 continue; 2859 } 2860 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2861 lpfc_vport_set_state(vports[i], 2862 FC_VPORT_LINKDOWN); 2863 continue; 2864 } 2865 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2866 lpfc_issue_init_vpi(vports[i]); 2867 continue; 2868 } 2869 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2870 lpfc_initial_fdisc(vports[i]); 2871 else { 2872 lpfc_vport_set_state(vports[i], 2873 FC_VPORT_NO_FABRIC_SUPP); 2874 lpfc_printf_vlog(vports[i], KERN_ERR, 2875 LOG_ELS, 2876 "0259 No NPIV " 2877 "Fabric support\n"); 2878 } 2879 } 2880 } 2881 lpfc_destroy_vport_work_array(phba, vports); 2882 } 2883 2884 void 2885 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2886 { 2887 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2888 struct lpfc_vport *vport = mboxq->vport; 2889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2890 2891 /* 2892 * VFI not supported for interface type 0, so ignore any mailbox 2893 * error (except VFI in use) and continue with the discovery. 2894 */ 2895 if (mboxq->u.mb.mbxStatus && 2896 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2897 LPFC_SLI_INTF_IF_TYPE_0) && 2898 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2899 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2900 "2018 REG_VFI mbxStatus error x%x " 2901 "HBA state x%x\n", 2902 mboxq->u.mb.mbxStatus, vport->port_state); 2903 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2904 /* FLOGI failed, use loop map to make discovery list */ 2905 lpfc_disc_list_loopmap(vport); 2906 /* Start discovery */ 2907 lpfc_disc_start(vport); 2908 goto out_free_mem; 2909 } 2910 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2911 goto out_free_mem; 2912 } 2913 2914 /* If the VFI is already registered, there is nothing else to do 2915 * Unless this was a VFI update and we are in PT2PT mode, then 2916 * we should drop through to set the port state to ready. 2917 */ 2918 if (vport->fc_flag & FC_VFI_REGISTERED) 2919 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2920 vport->fc_flag & FC_PT2PT)) 2921 goto out_free_mem; 2922 2923 /* The VPI is implicitly registered when the VFI is registered */ 2924 spin_lock_irq(shost->host_lock); 2925 vport->vpi_state |= LPFC_VPI_REGISTERED; 2926 vport->fc_flag |= FC_VFI_REGISTERED; 2927 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2928 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2929 spin_unlock_irq(shost->host_lock); 2930 2931 /* In case SLI4 FC loopback test, we are ready */ 2932 if ((phba->sli_rev == LPFC_SLI_REV4) && 2933 (phba->link_flag & LS_LOOPBACK_MODE)) { 2934 phba->link_state = LPFC_HBA_READY; 2935 goto out_free_mem; 2936 } 2937 2938 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2939 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2940 "alpacnt:%d LinkState:%x topology:%x\n", 2941 vport->port_state, vport->fc_flag, vport->fc_myDID, 2942 vport->phba->alpa_map[0], 2943 phba->link_state, phba->fc_topology); 2944 2945 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2946 /* 2947 * For private loop or for NPort pt2pt, 2948 * just start discovery and we are done. 2949 */ 2950 if ((vport->fc_flag & FC_PT2PT) || 2951 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2952 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2953 2954 /* Use loop map to make discovery list */ 2955 lpfc_disc_list_loopmap(vport); 2956 /* Start discovery */ 2957 if (vport->fc_flag & FC_PT2PT) 2958 vport->port_state = LPFC_VPORT_READY; 2959 else 2960 lpfc_disc_start(vport); 2961 } else { 2962 lpfc_start_fdiscs(phba); 2963 lpfc_do_scr_ns_plogi(phba, vport); 2964 } 2965 } 2966 2967 out_free_mem: 2968 mempool_free(mboxq, phba->mbox_mem_pool); 2969 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2970 kfree(dmabuf); 2971 return; 2972 } 2973 2974 static void 2975 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2976 { 2977 MAILBOX_t *mb = &pmb->u.mb; 2978 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 2979 struct lpfc_vport *vport = pmb->vport; 2980 2981 2982 /* Check for error */ 2983 if (mb->mbxStatus) { 2984 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 2985 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2986 "0319 READ_SPARAM mbxStatus error x%x " 2987 "hba state x%x>\n", 2988 mb->mbxStatus, vport->port_state); 2989 lpfc_linkdown(phba); 2990 goto out; 2991 } 2992 2993 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 2994 sizeof (struct serv_parm)); 2995 lpfc_update_vport_wwn(vport); 2996 if (vport->port_type == LPFC_PHYSICAL_PORT) { 2997 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 2998 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 2999 } 3000 3001 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3002 kfree(mp); 3003 mempool_free(pmb, phba->mbox_mem_pool); 3004 return; 3005 3006 out: 3007 pmb->context1 = NULL; 3008 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3009 kfree(mp); 3010 lpfc_issue_clear_la(phba, vport); 3011 mempool_free(pmb, phba->mbox_mem_pool); 3012 return; 3013 } 3014 3015 static void 3016 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3017 { 3018 struct lpfc_vport *vport = phba->pport; 3019 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3020 struct Scsi_Host *shost; 3021 int i; 3022 struct lpfc_dmabuf *mp; 3023 int rc; 3024 struct fcf_record *fcf_record; 3025 uint32_t fc_flags = 0; 3026 3027 spin_lock_irq(&phba->hbalock); 3028 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3029 case LPFC_LINK_SPEED_1GHZ: 3030 case LPFC_LINK_SPEED_2GHZ: 3031 case LPFC_LINK_SPEED_4GHZ: 3032 case LPFC_LINK_SPEED_8GHZ: 3033 case LPFC_LINK_SPEED_10GHZ: 3034 case LPFC_LINK_SPEED_16GHZ: 3035 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3036 break; 3037 default: 3038 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3039 break; 3040 } 3041 3042 if (phba->fc_topology && 3043 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3044 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3045 "3314 Toplogy changed was 0x%x is 0x%x\n", 3046 phba->fc_topology, 3047 bf_get(lpfc_mbx_read_top_topology, la)); 3048 phba->fc_topology_changed = 1; 3049 } 3050 3051 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3052 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3053 3054 shost = lpfc_shost_from_vport(vport); 3055 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3056 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3057 3058 /* if npiv is enabled and this adapter supports npiv log 3059 * a message that npiv is not supported in this topology 3060 */ 3061 if (phba->cfg_enable_npiv && phba->max_vpi) 3062 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3063 "1309 Link Up Event npiv not supported in loop " 3064 "topology\n"); 3065 /* Get Loop Map information */ 3066 if (bf_get(lpfc_mbx_read_top_il, la)) 3067 fc_flags |= FC_LBIT; 3068 3069 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3070 i = la->lilpBde64.tus.f.bdeSize; 3071 3072 if (i == 0) { 3073 phba->alpa_map[0] = 0; 3074 } else { 3075 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3076 int numalpa, j, k; 3077 union { 3078 uint8_t pamap[16]; 3079 struct { 3080 uint32_t wd1; 3081 uint32_t wd2; 3082 uint32_t wd3; 3083 uint32_t wd4; 3084 } pa; 3085 } un; 3086 numalpa = phba->alpa_map[0]; 3087 j = 0; 3088 while (j < numalpa) { 3089 memset(un.pamap, 0, 16); 3090 for (k = 1; j < numalpa; k++) { 3091 un.pamap[k - 1] = 3092 phba->alpa_map[j + 1]; 3093 j++; 3094 if (k == 16) 3095 break; 3096 } 3097 /* Link Up Event ALPA map */ 3098 lpfc_printf_log(phba, 3099 KERN_WARNING, 3100 LOG_LINK_EVENT, 3101 "1304 Link Up Event " 3102 "ALPA map Data: x%x " 3103 "x%x x%x x%x\n", 3104 un.pa.wd1, un.pa.wd2, 3105 un.pa.wd3, un.pa.wd4); 3106 } 3107 } 3108 } 3109 } else { 3110 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3111 if (phba->max_vpi && phba->cfg_enable_npiv && 3112 (phba->sli_rev >= LPFC_SLI_REV3)) 3113 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3114 } 3115 vport->fc_myDID = phba->fc_pref_DID; 3116 fc_flags |= FC_LBIT; 3117 } 3118 spin_unlock_irq(&phba->hbalock); 3119 3120 if (fc_flags) { 3121 spin_lock_irq(shost->host_lock); 3122 vport->fc_flag |= fc_flags; 3123 spin_unlock_irq(shost->host_lock); 3124 } 3125 3126 lpfc_linkup(phba); 3127 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3128 if (!sparam_mbox) 3129 goto out; 3130 3131 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3132 if (rc) { 3133 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3134 goto out; 3135 } 3136 sparam_mbox->vport = vport; 3137 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3138 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3139 if (rc == MBX_NOT_FINISHED) { 3140 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3141 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3142 kfree(mp); 3143 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3144 goto out; 3145 } 3146 3147 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3148 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3149 if (!cfglink_mbox) 3150 goto out; 3151 vport->port_state = LPFC_LOCAL_CFG_LINK; 3152 lpfc_config_link(phba, cfglink_mbox); 3153 cfglink_mbox->vport = vport; 3154 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3155 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3156 if (rc == MBX_NOT_FINISHED) { 3157 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3158 goto out; 3159 } 3160 } else { 3161 vport->port_state = LPFC_VPORT_UNKNOWN; 3162 /* 3163 * Add the driver's default FCF record at FCF index 0 now. This 3164 * is phase 1 implementation that support FCF index 0 and driver 3165 * defaults. 3166 */ 3167 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3168 fcf_record = kzalloc(sizeof(struct fcf_record), 3169 GFP_KERNEL); 3170 if (unlikely(!fcf_record)) { 3171 lpfc_printf_log(phba, KERN_ERR, 3172 LOG_MBOX | LOG_SLI, 3173 "2554 Could not allocate memory for " 3174 "fcf record\n"); 3175 rc = -ENODEV; 3176 goto out; 3177 } 3178 3179 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3180 LPFC_FCOE_FCF_DEF_INDEX); 3181 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3182 if (unlikely(rc)) { 3183 lpfc_printf_log(phba, KERN_ERR, 3184 LOG_MBOX | LOG_SLI, 3185 "2013 Could not manually add FCF " 3186 "record 0, status %d\n", rc); 3187 rc = -ENODEV; 3188 kfree(fcf_record); 3189 goto out; 3190 } 3191 kfree(fcf_record); 3192 } 3193 /* 3194 * The driver is expected to do FIP/FCF. Call the port 3195 * and get the FCF Table. 3196 */ 3197 spin_lock_irq(&phba->hbalock); 3198 if (phba->hba_flag & FCF_TS_INPROG) { 3199 spin_unlock_irq(&phba->hbalock); 3200 return; 3201 } 3202 /* This is the initial FCF discovery scan */ 3203 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3204 spin_unlock_irq(&phba->hbalock); 3205 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3206 "2778 Start FCF table scan at linkup\n"); 3207 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3208 LPFC_FCOE_FCF_GET_FIRST); 3209 if (rc) { 3210 spin_lock_irq(&phba->hbalock); 3211 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3212 spin_unlock_irq(&phba->hbalock); 3213 goto out; 3214 } 3215 /* Reset FCF roundrobin bmask for new discovery */ 3216 lpfc_sli4_clear_fcf_rr_bmask(phba); 3217 } 3218 3219 return; 3220 out: 3221 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3222 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3223 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3224 vport->port_state, sparam_mbox, cfglink_mbox); 3225 lpfc_issue_clear_la(phba, vport); 3226 return; 3227 } 3228 3229 static void 3230 lpfc_enable_la(struct lpfc_hba *phba) 3231 { 3232 uint32_t control; 3233 struct lpfc_sli *psli = &phba->sli; 3234 spin_lock_irq(&phba->hbalock); 3235 psli->sli_flag |= LPFC_PROCESS_LA; 3236 if (phba->sli_rev <= LPFC_SLI_REV3) { 3237 control = readl(phba->HCregaddr); 3238 control |= HC_LAINT_ENA; 3239 writel(control, phba->HCregaddr); 3240 readl(phba->HCregaddr); /* flush */ 3241 } 3242 spin_unlock_irq(&phba->hbalock); 3243 } 3244 3245 static void 3246 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3247 { 3248 lpfc_linkdown(phba); 3249 lpfc_enable_la(phba); 3250 lpfc_unregister_unused_fcf(phba); 3251 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3252 } 3253 3254 3255 /* 3256 * This routine handles processing a READ_TOPOLOGY mailbox 3257 * command upon completion. It is setup in the LPFC_MBOXQ 3258 * as the completion routine when the command is 3259 * handed off to the SLI layer. 3260 */ 3261 void 3262 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3263 { 3264 struct lpfc_vport *vport = pmb->vport; 3265 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3266 struct lpfc_mbx_read_top *la; 3267 MAILBOX_t *mb = &pmb->u.mb; 3268 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3269 3270 /* Unblock ELS traffic */ 3271 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 3272 /* Check for error */ 3273 if (mb->mbxStatus) { 3274 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3275 "1307 READ_LA mbox error x%x state x%x\n", 3276 mb->mbxStatus, vport->port_state); 3277 lpfc_mbx_issue_link_down(phba); 3278 phba->link_state = LPFC_HBA_ERROR; 3279 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3280 } 3281 3282 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3283 3284 memcpy(&phba->alpa_map[0], mp->virt, 128); 3285 3286 spin_lock_irq(shost->host_lock); 3287 if (bf_get(lpfc_mbx_read_top_pb, la)) 3288 vport->fc_flag |= FC_BYPASSED_MODE; 3289 else 3290 vport->fc_flag &= ~FC_BYPASSED_MODE; 3291 spin_unlock_irq(shost->host_lock); 3292 3293 if (phba->fc_eventTag <= la->eventTag) { 3294 phba->fc_stat.LinkMultiEvent++; 3295 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3296 if (phba->fc_eventTag != 0) 3297 lpfc_linkdown(phba); 3298 } 3299 3300 phba->fc_eventTag = la->eventTag; 3301 if (phba->sli_rev < LPFC_SLI_REV4) { 3302 spin_lock_irq(&phba->hbalock); 3303 if (bf_get(lpfc_mbx_read_top_mm, la)) 3304 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3305 else 3306 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3307 spin_unlock_irq(&phba->hbalock); 3308 } 3309 3310 phba->link_events++; 3311 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3312 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3313 phba->fc_stat.LinkUp++; 3314 if (phba->link_flag & LS_LOOPBACK_MODE) { 3315 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3316 "1306 Link Up Event in loop back mode " 3317 "x%x received Data: x%x x%x x%x x%x\n", 3318 la->eventTag, phba->fc_eventTag, 3319 bf_get(lpfc_mbx_read_top_alpa_granted, 3320 la), 3321 bf_get(lpfc_mbx_read_top_link_spd, la), 3322 phba->alpa_map[0]); 3323 } else { 3324 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3325 "1303 Link Up Event x%x received " 3326 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3327 la->eventTag, phba->fc_eventTag, 3328 bf_get(lpfc_mbx_read_top_alpa_granted, 3329 la), 3330 bf_get(lpfc_mbx_read_top_link_spd, la), 3331 phba->alpa_map[0], 3332 bf_get(lpfc_mbx_read_top_mm, la), 3333 bf_get(lpfc_mbx_read_top_fa, la), 3334 phba->wait_4_mlo_maint_flg); 3335 } 3336 lpfc_mbx_process_link_up(phba, la); 3337 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3338 LPFC_ATT_LINK_DOWN) { 3339 phba->fc_stat.LinkDown++; 3340 if (phba->link_flag & LS_LOOPBACK_MODE) 3341 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3342 "1308 Link Down Event in loop back mode " 3343 "x%x received " 3344 "Data: x%x x%x x%x\n", 3345 la->eventTag, phba->fc_eventTag, 3346 phba->pport->port_state, vport->fc_flag); 3347 else 3348 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3349 "1305 Link Down Event x%x received " 3350 "Data: x%x x%x x%x x%x x%x\n", 3351 la->eventTag, phba->fc_eventTag, 3352 phba->pport->port_state, vport->fc_flag, 3353 bf_get(lpfc_mbx_read_top_mm, la), 3354 bf_get(lpfc_mbx_read_top_fa, la)); 3355 lpfc_mbx_issue_link_down(phba); 3356 } 3357 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) && 3358 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) { 3359 if (phba->link_state != LPFC_LINK_DOWN) { 3360 phba->fc_stat.LinkDown++; 3361 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3362 "1312 Link Down Event x%x received " 3363 "Data: x%x x%x x%x\n", 3364 la->eventTag, phba->fc_eventTag, 3365 phba->pport->port_state, vport->fc_flag); 3366 lpfc_mbx_issue_link_down(phba); 3367 } else 3368 lpfc_enable_la(phba); 3369 3370 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3371 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3372 "Data: x%x x%x x%x\n", 3373 la->eventTag, phba->fc_eventTag, 3374 phba->pport->port_state, vport->fc_flag); 3375 /* 3376 * The cmnd that triggered this will be waiting for this 3377 * signal. 3378 */ 3379 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3380 if (phba->wait_4_mlo_maint_flg) { 3381 phba->wait_4_mlo_maint_flg = 0; 3382 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3383 } 3384 } 3385 3386 if ((phba->sli_rev < LPFC_SLI_REV4) && 3387 bf_get(lpfc_mbx_read_top_fa, la)) { 3388 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3389 lpfc_issue_clear_la(phba, vport); 3390 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3391 "1311 fa %d\n", 3392 bf_get(lpfc_mbx_read_top_fa, la)); 3393 } 3394 3395 lpfc_mbx_cmpl_read_topology_free_mbuf: 3396 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3397 kfree(mp); 3398 mempool_free(pmb, phba->mbox_mem_pool); 3399 return; 3400 } 3401 3402 /* 3403 * This routine handles processing a REG_LOGIN mailbox 3404 * command upon completion. It is setup in the LPFC_MBOXQ 3405 * as the completion routine when the command is 3406 * handed off to the SLI layer. 3407 */ 3408 void 3409 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3410 { 3411 struct lpfc_vport *vport = pmb->vport; 3412 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3413 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3414 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3415 3416 pmb->context1 = NULL; 3417 pmb->context2 = NULL; 3418 3419 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3420 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3421 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3422 atomic_read(&ndlp->kref.refcount), 3423 ndlp->nlp_usg_map, ndlp); 3424 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3425 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3426 3427 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3428 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3429 /* We rcvd a rscn after issuing this 3430 * mbox reg login, we may have cycled 3431 * back through the state and be 3432 * back at reg login state so this 3433 * mbox needs to be ignored becase 3434 * there is another reg login in 3435 * process. 3436 */ 3437 spin_lock_irq(shost->host_lock); 3438 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3439 spin_unlock_irq(shost->host_lock); 3440 } else 3441 /* Good status, call state machine */ 3442 lpfc_disc_state_machine(vport, ndlp, pmb, 3443 NLP_EVT_CMPL_REG_LOGIN); 3444 3445 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3446 kfree(mp); 3447 mempool_free(pmb, phba->mbox_mem_pool); 3448 /* decrement the node reference count held for this callback 3449 * function. 3450 */ 3451 lpfc_nlp_put(ndlp); 3452 3453 return; 3454 } 3455 3456 static void 3457 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3458 { 3459 MAILBOX_t *mb = &pmb->u.mb; 3460 struct lpfc_vport *vport = pmb->vport; 3461 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3462 3463 switch (mb->mbxStatus) { 3464 case 0x0011: 3465 case 0x0020: 3466 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3467 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3468 mb->mbxStatus); 3469 break; 3470 /* If VPI is busy, reset the HBA */ 3471 case 0x9700: 3472 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3473 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3474 vport->vpi, mb->mbxStatus); 3475 if (!(phba->pport->load_flag & FC_UNLOADING)) 3476 lpfc_workq_post_event(phba, NULL, NULL, 3477 LPFC_EVT_RESET_HBA); 3478 } 3479 spin_lock_irq(shost->host_lock); 3480 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3481 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3482 spin_unlock_irq(shost->host_lock); 3483 vport->unreg_vpi_cmpl = VPORT_OK; 3484 mempool_free(pmb, phba->mbox_mem_pool); 3485 lpfc_cleanup_vports_rrqs(vport, NULL); 3486 /* 3487 * This shost reference might have been taken at the beginning of 3488 * lpfc_vport_delete() 3489 */ 3490 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3491 scsi_host_put(shost); 3492 } 3493 3494 int 3495 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3496 { 3497 struct lpfc_hba *phba = vport->phba; 3498 LPFC_MBOXQ_t *mbox; 3499 int rc; 3500 3501 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3502 if (!mbox) 3503 return 1; 3504 3505 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3506 mbox->vport = vport; 3507 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3508 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3509 if (rc == MBX_NOT_FINISHED) { 3510 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3511 "1800 Could not issue unreg_vpi\n"); 3512 mempool_free(mbox, phba->mbox_mem_pool); 3513 vport->unreg_vpi_cmpl = VPORT_ERROR; 3514 return rc; 3515 } 3516 return 0; 3517 } 3518 3519 static void 3520 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3521 { 3522 struct lpfc_vport *vport = pmb->vport; 3523 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3524 MAILBOX_t *mb = &pmb->u.mb; 3525 3526 switch (mb->mbxStatus) { 3527 case 0x0011: 3528 case 0x9601: 3529 case 0x9602: 3530 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3531 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3532 mb->mbxStatus); 3533 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3534 spin_lock_irq(shost->host_lock); 3535 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3536 spin_unlock_irq(shost->host_lock); 3537 vport->fc_myDID = 0; 3538 goto out; 3539 } 3540 3541 spin_lock_irq(shost->host_lock); 3542 vport->vpi_state |= LPFC_VPI_REGISTERED; 3543 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3544 spin_unlock_irq(shost->host_lock); 3545 vport->num_disc_nodes = 0; 3546 /* go thru NPR list and issue ELS PLOGIs */ 3547 if (vport->fc_npr_cnt) 3548 lpfc_els_disc_plogi(vport); 3549 3550 if (!vport->num_disc_nodes) { 3551 spin_lock_irq(shost->host_lock); 3552 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3553 spin_unlock_irq(shost->host_lock); 3554 lpfc_can_disctmo(vport); 3555 } 3556 vport->port_state = LPFC_VPORT_READY; 3557 3558 out: 3559 mempool_free(pmb, phba->mbox_mem_pool); 3560 return; 3561 } 3562 3563 /** 3564 * lpfc_create_static_vport - Read HBA config region to create static vports. 3565 * @phba: pointer to lpfc hba data structure. 3566 * 3567 * This routine issue a DUMP mailbox command for config region 22 to get 3568 * the list of static vports to be created. The function create vports 3569 * based on the information returned from the HBA. 3570 **/ 3571 void 3572 lpfc_create_static_vport(struct lpfc_hba *phba) 3573 { 3574 LPFC_MBOXQ_t *pmb = NULL; 3575 MAILBOX_t *mb; 3576 struct static_vport_info *vport_info; 3577 int mbx_wait_rc = 0, i; 3578 struct fc_vport_identifiers vport_id; 3579 struct fc_vport *new_fc_vport; 3580 struct Scsi_Host *shost; 3581 struct lpfc_vport *vport; 3582 uint16_t offset = 0; 3583 uint8_t *vport_buff; 3584 struct lpfc_dmabuf *mp; 3585 uint32_t byte_count = 0; 3586 3587 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3588 if (!pmb) { 3589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3590 "0542 lpfc_create_static_vport failed to" 3591 " allocate mailbox memory\n"); 3592 return; 3593 } 3594 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3595 mb = &pmb->u.mb; 3596 3597 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3598 if (!vport_info) { 3599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3600 "0543 lpfc_create_static_vport failed to" 3601 " allocate vport_info\n"); 3602 mempool_free(pmb, phba->mbox_mem_pool); 3603 return; 3604 } 3605 3606 vport_buff = (uint8_t *) vport_info; 3607 do { 3608 /* free dma buffer from previous round */ 3609 if (pmb->context1) { 3610 mp = (struct lpfc_dmabuf *)pmb->context1; 3611 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3612 kfree(mp); 3613 } 3614 if (lpfc_dump_static_vport(phba, pmb, offset)) 3615 goto out; 3616 3617 pmb->vport = phba->pport; 3618 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3619 LPFC_MBOX_TMO); 3620 3621 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3622 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3623 "0544 lpfc_create_static_vport failed to" 3624 " issue dump mailbox command ret 0x%x " 3625 "status 0x%x\n", 3626 mbx_wait_rc, mb->mbxStatus); 3627 goto out; 3628 } 3629 3630 if (phba->sli_rev == LPFC_SLI_REV4) { 3631 byte_count = pmb->u.mqe.un.mb_words[5]; 3632 mp = (struct lpfc_dmabuf *)pmb->context1; 3633 if (byte_count > sizeof(struct static_vport_info) - 3634 offset) 3635 byte_count = sizeof(struct static_vport_info) 3636 - offset; 3637 memcpy(vport_buff + offset, mp->virt, byte_count); 3638 offset += byte_count; 3639 } else { 3640 if (mb->un.varDmp.word_cnt > 3641 sizeof(struct static_vport_info) - offset) 3642 mb->un.varDmp.word_cnt = 3643 sizeof(struct static_vport_info) 3644 - offset; 3645 byte_count = mb->un.varDmp.word_cnt; 3646 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3647 vport_buff + offset, 3648 byte_count); 3649 3650 offset += byte_count; 3651 } 3652 3653 } while (byte_count && 3654 offset < sizeof(struct static_vport_info)); 3655 3656 3657 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3658 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3659 != VPORT_INFO_REV)) { 3660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3661 "0545 lpfc_create_static_vport bad" 3662 " information header 0x%x 0x%x\n", 3663 le32_to_cpu(vport_info->signature), 3664 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3665 3666 goto out; 3667 } 3668 3669 shost = lpfc_shost_from_vport(phba->pport); 3670 3671 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3672 memset(&vport_id, 0, sizeof(vport_id)); 3673 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3674 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3675 if (!vport_id.port_name || !vport_id.node_name) 3676 continue; 3677 3678 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3679 vport_id.vport_type = FC_PORTTYPE_NPIV; 3680 vport_id.disable = false; 3681 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3682 3683 if (!new_fc_vport) { 3684 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3685 "0546 lpfc_create_static_vport failed to" 3686 " create vport\n"); 3687 continue; 3688 } 3689 3690 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3691 vport->vport_flag |= STATIC_VPORT; 3692 } 3693 3694 out: 3695 kfree(vport_info); 3696 if (mbx_wait_rc != MBX_TIMEOUT) { 3697 if (pmb->context1) { 3698 mp = (struct lpfc_dmabuf *)pmb->context1; 3699 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3700 kfree(mp); 3701 } 3702 mempool_free(pmb, phba->mbox_mem_pool); 3703 } 3704 3705 return; 3706 } 3707 3708 /* 3709 * This routine handles processing a Fabric REG_LOGIN mailbox 3710 * command upon completion. It is setup in the LPFC_MBOXQ 3711 * as the completion routine when the command is 3712 * handed off to the SLI layer. 3713 */ 3714 void 3715 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3716 { 3717 struct lpfc_vport *vport = pmb->vport; 3718 MAILBOX_t *mb = &pmb->u.mb; 3719 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3720 struct lpfc_nodelist *ndlp; 3721 struct Scsi_Host *shost; 3722 3723 ndlp = (struct lpfc_nodelist *) pmb->context2; 3724 pmb->context1 = NULL; 3725 pmb->context2 = NULL; 3726 3727 if (mb->mbxStatus) { 3728 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3729 "0258 Register Fabric login error: 0x%x\n", 3730 mb->mbxStatus); 3731 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3732 kfree(mp); 3733 mempool_free(pmb, phba->mbox_mem_pool); 3734 3735 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3736 /* FLOGI failed, use loop map to make discovery list */ 3737 lpfc_disc_list_loopmap(vport); 3738 3739 /* Start discovery */ 3740 lpfc_disc_start(vport); 3741 /* Decrement the reference count to ndlp after the 3742 * reference to the ndlp are done. 3743 */ 3744 lpfc_nlp_put(ndlp); 3745 return; 3746 } 3747 3748 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3749 /* Decrement the reference count to ndlp after the reference 3750 * to the ndlp are done. 3751 */ 3752 lpfc_nlp_put(ndlp); 3753 return; 3754 } 3755 3756 if (phba->sli_rev < LPFC_SLI_REV4) 3757 ndlp->nlp_rpi = mb->un.varWords[0]; 3758 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3759 ndlp->nlp_type |= NLP_FABRIC; 3760 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3761 3762 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3763 /* when physical port receive logo donot start 3764 * vport discovery */ 3765 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3766 lpfc_start_fdiscs(phba); 3767 else { 3768 shost = lpfc_shost_from_vport(vport); 3769 spin_lock_irq(shost->host_lock); 3770 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3771 spin_unlock_irq(shost->host_lock); 3772 } 3773 lpfc_do_scr_ns_plogi(phba, vport); 3774 } 3775 3776 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3777 kfree(mp); 3778 mempool_free(pmb, phba->mbox_mem_pool); 3779 3780 /* Drop the reference count from the mbox at the end after 3781 * all the current reference to the ndlp have been done. 3782 */ 3783 lpfc_nlp_put(ndlp); 3784 return; 3785 } 3786 3787 /* 3788 * This routine handles processing a NameServer REG_LOGIN mailbox 3789 * command upon completion. It is setup in the LPFC_MBOXQ 3790 * as the completion routine when the command is 3791 * handed off to the SLI layer. 3792 */ 3793 void 3794 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3795 { 3796 MAILBOX_t *mb = &pmb->u.mb; 3797 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3798 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3799 struct lpfc_vport *vport = pmb->vport; 3800 3801 pmb->context1 = NULL; 3802 pmb->context2 = NULL; 3803 3804 if (mb->mbxStatus) { 3805 out: 3806 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3807 "0260 Register NameServer error: 0x%x\n", 3808 mb->mbxStatus); 3809 /* decrement the node reference count held for this 3810 * callback function. 3811 */ 3812 lpfc_nlp_put(ndlp); 3813 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3814 kfree(mp); 3815 mempool_free(pmb, phba->mbox_mem_pool); 3816 3817 /* If no other thread is using the ndlp, free it */ 3818 lpfc_nlp_not_used(ndlp); 3819 3820 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3821 /* 3822 * RegLogin failed, use loop map to make discovery 3823 * list 3824 */ 3825 lpfc_disc_list_loopmap(vport); 3826 3827 /* Start discovery */ 3828 lpfc_disc_start(vport); 3829 return; 3830 } 3831 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3832 return; 3833 } 3834 3835 if (phba->sli_rev < LPFC_SLI_REV4) 3836 ndlp->nlp_rpi = mb->un.varWords[0]; 3837 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3838 ndlp->nlp_type |= NLP_FABRIC; 3839 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3840 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3841 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3842 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3843 atomic_read(&ndlp->kref.refcount), 3844 ndlp->nlp_usg_map, ndlp); 3845 3846 if (vport->port_state < LPFC_VPORT_READY) { 3847 /* Link up discovery requires Fabric registration. */ 3848 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3849 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3850 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3851 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3852 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); 3853 3854 /* Issue SCR just before NameServer GID_FT Query */ 3855 lpfc_issue_els_scr(vport, SCR_DID, 0); 3856 } 3857 3858 vport->fc_ns_retry = 0; 3859 /* Good status, issue CT Request to NameServer */ 3860 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 3861 /* Cannot issue NameServer Query, so finish up discovery */ 3862 goto out; 3863 } 3864 3865 /* decrement the node reference count held for this 3866 * callback function. 3867 */ 3868 lpfc_nlp_put(ndlp); 3869 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3870 kfree(mp); 3871 mempool_free(pmb, phba->mbox_mem_pool); 3872 3873 return; 3874 } 3875 3876 static void 3877 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3878 { 3879 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3880 struct fc_rport *rport; 3881 struct lpfc_rport_data *rdata; 3882 struct fc_rport_identifiers rport_ids; 3883 struct lpfc_hba *phba = vport->phba; 3884 3885 /* Remote port has reappeared. Re-register w/ FC transport */ 3886 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 3887 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 3888 rport_ids.port_id = ndlp->nlp_DID; 3889 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 3890 3891 /* 3892 * We leave our node pointer in rport->dd_data when we unregister a 3893 * FCP target port. But fc_remote_port_add zeros the space to which 3894 * rport->dd_data points. So, if we're reusing a previously 3895 * registered port, drop the reference that we took the last time we 3896 * registered the port. 3897 */ 3898 rport = ndlp->rport; 3899 if (rport) { 3900 rdata = rport->dd_data; 3901 /* break the link before dropping the ref */ 3902 ndlp->rport = NULL; 3903 if (rdata && rdata->pnode == ndlp) 3904 lpfc_nlp_put(ndlp); 3905 rdata->pnode = NULL; 3906 /* drop reference for earlier registeration */ 3907 put_device(&rport->dev); 3908 } 3909 3910 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 3911 "rport add: did:x%x flg:x%x type x%x", 3912 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3913 3914 /* Don't add the remote port if unloading. */ 3915 if (vport->load_flag & FC_UNLOADING) 3916 return; 3917 3918 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 3919 if (!rport || !get_device(&rport->dev)) { 3920 dev_printk(KERN_WARNING, &phba->pcidev->dev, 3921 "Warning: fc_remote_port_add failed\n"); 3922 return; 3923 } 3924 3925 /* initialize static port data */ 3926 rport->maxframe_size = ndlp->nlp_maxframe; 3927 rport->supported_classes = ndlp->nlp_class_sup; 3928 rdata = rport->dd_data; 3929 rdata->pnode = lpfc_nlp_get(ndlp); 3930 3931 if (ndlp->nlp_type & NLP_FCP_TARGET) 3932 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 3933 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 3934 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 3935 3936 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 3937 fc_remote_port_rolechg(rport, rport_ids.roles); 3938 3939 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3940 "3183 rport register x%06x, rport %p role x%x\n", 3941 ndlp->nlp_DID, rport, rport_ids.roles); 3942 3943 if ((rport->scsi_target_id != -1) && 3944 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 3945 ndlp->nlp_sid = rport->scsi_target_id; 3946 } 3947 return; 3948 } 3949 3950 static void 3951 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 3952 { 3953 struct fc_rport *rport = ndlp->rport; 3954 3955 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 3956 "rport delete: did:x%x flg:x%x type x%x", 3957 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3958 3959 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3960 "3184 rport unregister x%06x, rport %p\n", 3961 ndlp->nlp_DID, rport); 3962 3963 fc_remote_port_delete(rport); 3964 3965 return; 3966 } 3967 3968 static void 3969 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 3970 { 3971 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3972 3973 spin_lock_irq(shost->host_lock); 3974 switch (state) { 3975 case NLP_STE_UNUSED_NODE: 3976 vport->fc_unused_cnt += count; 3977 break; 3978 case NLP_STE_PLOGI_ISSUE: 3979 vport->fc_plogi_cnt += count; 3980 break; 3981 case NLP_STE_ADISC_ISSUE: 3982 vport->fc_adisc_cnt += count; 3983 break; 3984 case NLP_STE_REG_LOGIN_ISSUE: 3985 vport->fc_reglogin_cnt += count; 3986 break; 3987 case NLP_STE_PRLI_ISSUE: 3988 vport->fc_prli_cnt += count; 3989 break; 3990 case NLP_STE_UNMAPPED_NODE: 3991 vport->fc_unmap_cnt += count; 3992 break; 3993 case NLP_STE_MAPPED_NODE: 3994 vport->fc_map_cnt += count; 3995 break; 3996 case NLP_STE_NPR_NODE: 3997 if (vport->fc_npr_cnt == 0 && count == -1) 3998 vport->fc_npr_cnt = 0; 3999 else 4000 vport->fc_npr_cnt += count; 4001 break; 4002 } 4003 spin_unlock_irq(shost->host_lock); 4004 } 4005 4006 static void 4007 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4008 int old_state, int new_state) 4009 { 4010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4011 4012 if (new_state == NLP_STE_UNMAPPED_NODE) { 4013 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4014 ndlp->nlp_type |= NLP_FC_NODE; 4015 } 4016 if (new_state == NLP_STE_MAPPED_NODE) 4017 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4018 if (new_state == NLP_STE_NPR_NODE) 4019 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4020 4021 /* Transport interface */ 4022 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 4023 old_state == NLP_STE_UNMAPPED_NODE)) { 4024 vport->phba->nport_event_cnt++; 4025 lpfc_unregister_remote_port(ndlp); 4026 } 4027 4028 if (new_state == NLP_STE_MAPPED_NODE || 4029 new_state == NLP_STE_UNMAPPED_NODE) { 4030 vport->phba->nport_event_cnt++; 4031 /* 4032 * Tell the fc transport about the port, if we haven't 4033 * already. If we have, and it's a scsi entity, be 4034 * sure to unblock any attached scsi devices 4035 */ 4036 lpfc_register_remote_port(vport, ndlp); 4037 } 4038 if ((new_state == NLP_STE_MAPPED_NODE) && 4039 (vport->stat_data_enabled)) { 4040 /* 4041 * A new target is discovered, if there is no buffer for 4042 * statistical data collection allocate buffer. 4043 */ 4044 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4045 sizeof(struct lpfc_scsicmd_bkt), 4046 GFP_KERNEL); 4047 4048 if (!ndlp->lat_data) 4049 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4050 "0286 lpfc_nlp_state_cleanup failed to " 4051 "allocate statistical data buffer DID " 4052 "0x%x\n", ndlp->nlp_DID); 4053 } 4054 /* 4055 * if we added to Mapped list, but the remote port 4056 * registration failed or assigned a target id outside 4057 * our presentable range - move the node to the 4058 * Unmapped List 4059 */ 4060 if (new_state == NLP_STE_MAPPED_NODE && 4061 (!ndlp->rport || 4062 ndlp->rport->scsi_target_id == -1 || 4063 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4064 spin_lock_irq(shost->host_lock); 4065 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4066 spin_unlock_irq(shost->host_lock); 4067 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4068 } 4069 } 4070 4071 static char * 4072 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4073 { 4074 static char *states[] = { 4075 [NLP_STE_UNUSED_NODE] = "UNUSED", 4076 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4077 [NLP_STE_ADISC_ISSUE] = "ADISC", 4078 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4079 [NLP_STE_PRLI_ISSUE] = "PRLI", 4080 [NLP_STE_LOGO_ISSUE] = "LOGO", 4081 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4082 [NLP_STE_MAPPED_NODE] = "MAPPED", 4083 [NLP_STE_NPR_NODE] = "NPR", 4084 }; 4085 4086 if (state < NLP_STE_MAX_STATE && states[state]) 4087 strlcpy(buffer, states[state], size); 4088 else 4089 snprintf(buffer, size, "unknown (%d)", state); 4090 return buffer; 4091 } 4092 4093 void 4094 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4095 int state) 4096 { 4097 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4098 int old_state = ndlp->nlp_state; 4099 char name1[16], name2[16]; 4100 4101 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4102 "0904 NPort state transition x%06x, %s -> %s\n", 4103 ndlp->nlp_DID, 4104 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4105 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4106 4107 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4108 "node statechg did:x%x old:%d ste:%d", 4109 ndlp->nlp_DID, old_state, state); 4110 4111 if (old_state == NLP_STE_NPR_NODE && 4112 state != NLP_STE_NPR_NODE) 4113 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4114 if (old_state == NLP_STE_UNMAPPED_NODE) { 4115 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4116 ndlp->nlp_type &= ~NLP_FC_NODE; 4117 } 4118 4119 if (list_empty(&ndlp->nlp_listp)) { 4120 spin_lock_irq(shost->host_lock); 4121 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4122 spin_unlock_irq(shost->host_lock); 4123 } else if (old_state) 4124 lpfc_nlp_counters(vport, old_state, -1); 4125 4126 ndlp->nlp_state = state; 4127 lpfc_nlp_counters(vport, state, 1); 4128 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4129 } 4130 4131 void 4132 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4133 { 4134 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4135 4136 if (list_empty(&ndlp->nlp_listp)) { 4137 spin_lock_irq(shost->host_lock); 4138 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4139 spin_unlock_irq(shost->host_lock); 4140 } 4141 } 4142 4143 void 4144 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4145 { 4146 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4147 4148 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4149 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4150 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4151 spin_lock_irq(shost->host_lock); 4152 list_del_init(&ndlp->nlp_listp); 4153 spin_unlock_irq(shost->host_lock); 4154 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4155 NLP_STE_UNUSED_NODE); 4156 } 4157 4158 static void 4159 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4160 { 4161 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4162 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4163 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4164 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4165 NLP_STE_UNUSED_NODE); 4166 } 4167 /** 4168 * lpfc_initialize_node - Initialize all fields of node object 4169 * @vport: Pointer to Virtual Port object. 4170 * @ndlp: Pointer to FC node object. 4171 * @did: FC_ID of the node. 4172 * 4173 * This function is always called when node object need to be initialized. 4174 * It initializes all the fields of the node object. Although the reference 4175 * to phba from @ndlp can be obtained indirectly through it's reference to 4176 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4177 * to the life-span of the @ndlp might go beyond the existence of @vport as 4178 * the final release of ndlp is determined by its reference count. And, the 4179 * operation on @ndlp needs the reference to phba. 4180 **/ 4181 static inline void 4182 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4183 uint32_t did) 4184 { 4185 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4186 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4187 init_timer(&ndlp->nlp_delayfunc); 4188 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 4189 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 4190 ndlp->nlp_DID = did; 4191 ndlp->vport = vport; 4192 ndlp->phba = vport->phba; 4193 ndlp->nlp_sid = NLP_NO_SID; 4194 kref_init(&ndlp->kref); 4195 NLP_INT_NODE_ACT(ndlp); 4196 atomic_set(&ndlp->cmd_pending, 0); 4197 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4198 } 4199 4200 struct lpfc_nodelist * 4201 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4202 int state) 4203 { 4204 struct lpfc_hba *phba = vport->phba; 4205 uint32_t did; 4206 unsigned long flags; 4207 unsigned long *active_rrqs_xri_bitmap = NULL; 4208 4209 if (!ndlp) 4210 return NULL; 4211 4212 spin_lock_irqsave(&phba->ndlp_lock, flags); 4213 /* The ndlp should not be in memory free mode */ 4214 if (NLP_CHK_FREE_REQ(ndlp)) { 4215 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4216 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4217 "0277 lpfc_enable_node: ndlp:x%p " 4218 "usgmap:x%x refcnt:%d\n", 4219 (void *)ndlp, ndlp->nlp_usg_map, 4220 atomic_read(&ndlp->kref.refcount)); 4221 return NULL; 4222 } 4223 /* The ndlp should not already be in active mode */ 4224 if (NLP_CHK_NODE_ACT(ndlp)) { 4225 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4226 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4227 "0278 lpfc_enable_node: ndlp:x%p " 4228 "usgmap:x%x refcnt:%d\n", 4229 (void *)ndlp, ndlp->nlp_usg_map, 4230 atomic_read(&ndlp->kref.refcount)); 4231 return NULL; 4232 } 4233 4234 /* Keep the original DID */ 4235 did = ndlp->nlp_DID; 4236 if (phba->sli_rev == LPFC_SLI_REV4) 4237 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4238 4239 /* re-initialize ndlp except of ndlp linked list pointer */ 4240 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4241 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4242 lpfc_initialize_node(vport, ndlp, did); 4243 4244 if (phba->sli_rev == LPFC_SLI_REV4) 4245 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4246 4247 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4248 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4249 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4250 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4251 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4252 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4253 ndlp->nlp_flag, 4254 atomic_read(&ndlp->kref.refcount), 4255 ndlp->nlp_usg_map, ndlp); 4256 } 4257 4258 4259 if (state != NLP_STE_UNUSED_NODE) 4260 lpfc_nlp_set_state(vport, ndlp, state); 4261 4262 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4263 "node enable: did:x%x", 4264 ndlp->nlp_DID, 0, 0); 4265 return ndlp; 4266 } 4267 4268 void 4269 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4270 { 4271 /* 4272 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4273 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4274 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4275 * until ALL other outstanding threads have completed. We check 4276 * that the ndlp not already in the UNUSED state before we proceed. 4277 */ 4278 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4279 return; 4280 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4281 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4282 lpfc_cleanup_vports_rrqs(vport, ndlp); 4283 lpfc_unreg_rpi(vport, ndlp); 4284 } 4285 4286 lpfc_nlp_put(ndlp); 4287 return; 4288 } 4289 4290 /* 4291 * Start / ReStart rescue timer for Discovery / RSCN handling 4292 */ 4293 void 4294 lpfc_set_disctmo(struct lpfc_vport *vport) 4295 { 4296 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4297 struct lpfc_hba *phba = vport->phba; 4298 uint32_t tmo; 4299 4300 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4301 /* For FAN, timeout should be greater than edtov */ 4302 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4303 } else { 4304 /* Normal discovery timeout should be > than ELS/CT timeout 4305 * FC spec states we need 3 * ratov for CT requests 4306 */ 4307 tmo = ((phba->fc_ratov * 3) + 3); 4308 } 4309 4310 4311 if (!timer_pending(&vport->fc_disctmo)) { 4312 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4313 "set disc timer: tmo:x%x state:x%x flg:x%x", 4314 tmo, vport->port_state, vport->fc_flag); 4315 } 4316 4317 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4318 spin_lock_irq(shost->host_lock); 4319 vport->fc_flag |= FC_DISC_TMO; 4320 spin_unlock_irq(shost->host_lock); 4321 4322 /* Start Discovery Timer state <hba_state> */ 4323 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4324 "0247 Start Discovery Timer state x%x " 4325 "Data: x%x x%lx x%x x%x\n", 4326 vport->port_state, tmo, 4327 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4328 vport->fc_adisc_cnt); 4329 4330 return; 4331 } 4332 4333 /* 4334 * Cancel rescue timer for Discovery / RSCN handling 4335 */ 4336 int 4337 lpfc_can_disctmo(struct lpfc_vport *vport) 4338 { 4339 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4340 unsigned long iflags; 4341 4342 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4343 "can disc timer: state:x%x rtry:x%x flg:x%x", 4344 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4345 4346 /* Turn off discovery timer if its running */ 4347 if (vport->fc_flag & FC_DISC_TMO) { 4348 spin_lock_irqsave(shost->host_lock, iflags); 4349 vport->fc_flag &= ~FC_DISC_TMO; 4350 spin_unlock_irqrestore(shost->host_lock, iflags); 4351 del_timer_sync(&vport->fc_disctmo); 4352 spin_lock_irqsave(&vport->work_port_lock, iflags); 4353 vport->work_port_events &= ~WORKER_DISC_TMO; 4354 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4355 } 4356 4357 /* Cancel Discovery Timer state <hba_state> */ 4358 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4359 "0248 Cancel Discovery Timer state x%x " 4360 "Data: x%x x%x x%x\n", 4361 vport->port_state, vport->fc_flag, 4362 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4363 return 0; 4364 } 4365 4366 /* 4367 * Check specified ring for outstanding IOCB on the SLI queue 4368 * Return true if iocb matches the specified nport 4369 */ 4370 int 4371 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4372 struct lpfc_sli_ring *pring, 4373 struct lpfc_iocbq *iocb, 4374 struct lpfc_nodelist *ndlp) 4375 { 4376 struct lpfc_sli *psli = &phba->sli; 4377 IOCB_t *icmd = &iocb->iocb; 4378 struct lpfc_vport *vport = ndlp->vport; 4379 4380 if (iocb->vport != vport) 4381 return 0; 4382 4383 if (pring->ringno == LPFC_ELS_RING) { 4384 switch (icmd->ulpCommand) { 4385 case CMD_GEN_REQUEST64_CR: 4386 if (iocb->context_un.ndlp == ndlp) 4387 return 1; 4388 case CMD_ELS_REQUEST64_CR: 4389 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4390 return 1; 4391 case CMD_XMIT_ELS_RSP64_CX: 4392 if (iocb->context1 == (uint8_t *) ndlp) 4393 return 1; 4394 } 4395 } else if (pring->ringno == psli->extra_ring) { 4396 4397 } else if (pring->ringno == psli->fcp_ring) { 4398 /* Skip match check if waiting to relogin to FCP target */ 4399 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4400 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4401 return 0; 4402 } 4403 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4404 return 1; 4405 } 4406 } else if (pring->ringno == psli->next_ring) { 4407 4408 } 4409 return 0; 4410 } 4411 4412 /* 4413 * Free resources / clean up outstanding I/Os 4414 * associated with nlp_rpi in the LPFC_NODELIST entry. 4415 */ 4416 static int 4417 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4418 { 4419 LIST_HEAD(completions); 4420 struct lpfc_sli *psli; 4421 struct lpfc_sli_ring *pring; 4422 struct lpfc_iocbq *iocb, *next_iocb; 4423 uint32_t i; 4424 4425 lpfc_fabric_abort_nport(ndlp); 4426 4427 /* 4428 * Everything that matches on txcmplq will be returned 4429 * by firmware with a no rpi error. 4430 */ 4431 psli = &phba->sli; 4432 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4433 /* Now process each ring */ 4434 for (i = 0; i < psli->num_rings; i++) { 4435 pring = &psli->ring[i]; 4436 4437 spin_lock_irq(&phba->hbalock); 4438 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 4439 list) { 4440 /* 4441 * Check to see if iocb matches the nport we are 4442 * looking for 4443 */ 4444 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 4445 ndlp))) { 4446 /* It matches, so deque and call compl 4447 with an error */ 4448 list_move_tail(&iocb->list, 4449 &completions); 4450 } 4451 } 4452 spin_unlock_irq(&phba->hbalock); 4453 } 4454 } 4455 4456 /* Cancel all the IOCBs from the completions list */ 4457 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4458 IOERR_SLI_ABORTED); 4459 4460 return 0; 4461 } 4462 4463 /** 4464 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4465 * @phba: Pointer to HBA context object. 4466 * @pmb: Pointer to mailbox object. 4467 * 4468 * This function will issue an ELS LOGO command after completing 4469 * the UNREG_RPI. 4470 **/ 4471 static void 4472 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4473 { 4474 struct lpfc_vport *vport = pmb->vport; 4475 struct lpfc_nodelist *ndlp; 4476 4477 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4478 if (!ndlp) 4479 return; 4480 lpfc_issue_els_logo(vport, ndlp, 0); 4481 mempool_free(pmb, phba->mbox_mem_pool); 4482 } 4483 4484 /* 4485 * Free rpi associated with LPFC_NODELIST entry. 4486 * This routine is called from lpfc_freenode(), when we are removing 4487 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4488 * LOGO that completes successfully, and we are waiting to PLOGI back 4489 * to the remote NPort. In addition, it is called after we receive 4490 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4491 * we are waiting to PLOGI back to the remote NPort. 4492 */ 4493 int 4494 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4495 { 4496 struct lpfc_hba *phba = vport->phba; 4497 LPFC_MBOXQ_t *mbox; 4498 int rc, acc_plogi = 1; 4499 uint16_t rpi; 4500 4501 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4502 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4503 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4504 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4505 "3366 RPI x%x needs to be " 4506 "unregistered nlp_flag x%x " 4507 "did x%x\n", 4508 ndlp->nlp_rpi, ndlp->nlp_flag, 4509 ndlp->nlp_DID); 4510 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4511 if (mbox) { 4512 /* SLI4 ports require the physical rpi value. */ 4513 rpi = ndlp->nlp_rpi; 4514 if (phba->sli_rev == LPFC_SLI_REV4) 4515 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4516 4517 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4518 mbox->vport = vport; 4519 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4520 mbox->context1 = ndlp; 4521 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4522 } else { 4523 if (phba->sli_rev == LPFC_SLI_REV4 && 4524 (!(vport->load_flag & FC_UNLOADING)) && 4525 (bf_get(lpfc_sli_intf_if_type, 4526 &phba->sli4_hba.sli_intf) == 4527 LPFC_SLI_INTF_IF_TYPE_2)) { 4528 mbox->context1 = lpfc_nlp_get(ndlp); 4529 mbox->mbox_cmpl = 4530 lpfc_sli4_unreg_rpi_cmpl_clr; 4531 /* 4532 * accept PLOGIs after unreg_rpi_cmpl 4533 */ 4534 acc_plogi = 0; 4535 } else 4536 mbox->mbox_cmpl = 4537 lpfc_sli_def_mbox_cmpl; 4538 } 4539 4540 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4541 if (rc == MBX_NOT_FINISHED) { 4542 mempool_free(mbox, phba->mbox_mem_pool); 4543 acc_plogi = 1; 4544 } 4545 } 4546 lpfc_no_rpi(phba, ndlp); 4547 4548 if (phba->sli_rev != LPFC_SLI_REV4) 4549 ndlp->nlp_rpi = 0; 4550 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4551 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4552 if (acc_plogi) 4553 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4554 return 1; 4555 } 4556 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4557 return 0; 4558 } 4559 4560 /** 4561 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4562 * @phba: pointer to lpfc hba data structure. 4563 * 4564 * This routine is invoked to unregister all the currently registered RPIs 4565 * to the HBA. 4566 **/ 4567 void 4568 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4569 { 4570 struct lpfc_vport **vports; 4571 struct lpfc_nodelist *ndlp; 4572 struct Scsi_Host *shost; 4573 int i; 4574 4575 vports = lpfc_create_vport_work_array(phba); 4576 if (!vports) { 4577 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4578 "2884 Vport array allocation failed \n"); 4579 return; 4580 } 4581 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4582 shost = lpfc_shost_from_vport(vports[i]); 4583 spin_lock_irq(shost->host_lock); 4584 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4585 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4586 /* The mempool_alloc might sleep */ 4587 spin_unlock_irq(shost->host_lock); 4588 lpfc_unreg_rpi(vports[i], ndlp); 4589 spin_lock_irq(shost->host_lock); 4590 } 4591 } 4592 spin_unlock_irq(shost->host_lock); 4593 } 4594 lpfc_destroy_vport_work_array(phba, vports); 4595 } 4596 4597 void 4598 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4599 { 4600 struct lpfc_hba *phba = vport->phba; 4601 LPFC_MBOXQ_t *mbox; 4602 int rc; 4603 4604 if (phba->sli_rev == LPFC_SLI_REV4) { 4605 lpfc_sli4_unreg_all_rpis(vport); 4606 return; 4607 } 4608 4609 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4610 if (mbox) { 4611 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4612 mbox); 4613 mbox->vport = vport; 4614 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4615 mbox->context1 = NULL; 4616 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4617 if (rc != MBX_TIMEOUT) 4618 mempool_free(mbox, phba->mbox_mem_pool); 4619 4620 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4621 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4622 "1836 Could not issue " 4623 "unreg_login(all_rpis) status %d\n", rc); 4624 } 4625 } 4626 4627 void 4628 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4629 { 4630 struct lpfc_hba *phba = vport->phba; 4631 LPFC_MBOXQ_t *mbox; 4632 int rc; 4633 4634 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4635 if (mbox) { 4636 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4637 mbox); 4638 mbox->vport = vport; 4639 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4640 mbox->context1 = NULL; 4641 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4642 if (rc != MBX_TIMEOUT) 4643 mempool_free(mbox, phba->mbox_mem_pool); 4644 4645 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4646 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4647 "1815 Could not issue " 4648 "unreg_did (default rpis) status %d\n", 4649 rc); 4650 } 4651 } 4652 4653 /* 4654 * Free resources associated with LPFC_NODELIST entry 4655 * so it can be freed. 4656 */ 4657 static int 4658 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4659 { 4660 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4661 struct lpfc_hba *phba = vport->phba; 4662 LPFC_MBOXQ_t *mb, *nextmb; 4663 struct lpfc_dmabuf *mp; 4664 4665 /* Cleanup node for NPort <nlp_DID> */ 4666 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4667 "0900 Cleanup node for NPort x%x " 4668 "Data: x%x x%x x%x\n", 4669 ndlp->nlp_DID, ndlp->nlp_flag, 4670 ndlp->nlp_state, ndlp->nlp_rpi); 4671 if (NLP_CHK_FREE_REQ(ndlp)) { 4672 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4673 "0280 lpfc_cleanup_node: ndlp:x%p " 4674 "usgmap:x%x refcnt:%d\n", 4675 (void *)ndlp, ndlp->nlp_usg_map, 4676 atomic_read(&ndlp->kref.refcount)); 4677 lpfc_dequeue_node(vport, ndlp); 4678 } else { 4679 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4680 "0281 lpfc_cleanup_node: ndlp:x%p " 4681 "usgmap:x%x refcnt:%d\n", 4682 (void *)ndlp, ndlp->nlp_usg_map, 4683 atomic_read(&ndlp->kref.refcount)); 4684 lpfc_disable_node(vport, ndlp); 4685 } 4686 4687 4688 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4689 4690 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4691 if ((mb = phba->sli.mbox_active)) { 4692 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4693 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4694 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4695 mb->context2 = NULL; 4696 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4697 } 4698 } 4699 4700 spin_lock_irq(&phba->hbalock); 4701 /* Cleanup REG_LOGIN completions which are not yet processed */ 4702 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4703 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4704 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4705 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4706 continue; 4707 4708 mb->context2 = NULL; 4709 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4710 } 4711 4712 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4713 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4714 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4715 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4716 mp = (struct lpfc_dmabuf *) (mb->context1); 4717 if (mp) { 4718 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4719 kfree(mp); 4720 } 4721 list_del(&mb->list); 4722 mempool_free(mb, phba->mbox_mem_pool); 4723 /* We shall not invoke the lpfc_nlp_put to decrement 4724 * the ndlp reference count as we are in the process 4725 * of lpfc_nlp_release. 4726 */ 4727 } 4728 } 4729 spin_unlock_irq(&phba->hbalock); 4730 4731 lpfc_els_abort(phba, ndlp); 4732 4733 spin_lock_irq(shost->host_lock); 4734 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4735 spin_unlock_irq(shost->host_lock); 4736 4737 ndlp->nlp_last_elscmd = 0; 4738 del_timer_sync(&ndlp->nlp_delayfunc); 4739 4740 list_del_init(&ndlp->els_retry_evt.evt_listp); 4741 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4742 lpfc_cleanup_vports_rrqs(vport, ndlp); 4743 lpfc_unreg_rpi(vport, ndlp); 4744 4745 return 0; 4746 } 4747 4748 /* 4749 * Check to see if we can free the nlp back to the freelist. 4750 * If we are in the middle of using the nlp in the discovery state 4751 * machine, defer the free till we reach the end of the state machine. 4752 */ 4753 static void 4754 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4755 { 4756 struct lpfc_hba *phba = vport->phba; 4757 struct lpfc_rport_data *rdata; 4758 struct fc_rport *rport; 4759 LPFC_MBOXQ_t *mbox; 4760 int rc; 4761 4762 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4763 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4764 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4765 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4766 /* For this case we need to cleanup the default rpi 4767 * allocated by the firmware. 4768 */ 4769 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4770 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4771 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4772 atomic_read(&ndlp->kref.refcount), 4773 ndlp->nlp_usg_map, ndlp); 4774 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4775 != NULL) { 4776 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4777 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4778 if (rc) { 4779 mempool_free(mbox, phba->mbox_mem_pool); 4780 } 4781 else { 4782 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4783 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4784 mbox->vport = vport; 4785 mbox->context2 = ndlp; 4786 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4787 if (rc == MBX_NOT_FINISHED) { 4788 mempool_free(mbox, phba->mbox_mem_pool); 4789 } 4790 } 4791 } 4792 } 4793 lpfc_cleanup_node(vport, ndlp); 4794 4795 /* 4796 * ndlp->rport must be set to NULL before it reaches here 4797 * i.e. break rport/node link before doing lpfc_nlp_put for 4798 * registered rport and then drop the reference of rport. 4799 */ 4800 if (ndlp->rport) { 4801 /* 4802 * extra lpfc_nlp_put dropped the reference of ndlp 4803 * for registered rport so need to cleanup rport 4804 */ 4805 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4806 "0940 removed node x%p DID x%x " 4807 " rport not null %p\n", 4808 ndlp, ndlp->nlp_DID, ndlp->rport); 4809 rport = ndlp->rport; 4810 rdata = rport->dd_data; 4811 rdata->pnode = NULL; 4812 ndlp->rport = NULL; 4813 put_device(&rport->dev); 4814 } 4815 } 4816 4817 static int 4818 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4819 uint32_t did) 4820 { 4821 D_ID mydid, ndlpdid, matchdid; 4822 4823 if (did == Bcast_DID) 4824 return 0; 4825 4826 /* First check for Direct match */ 4827 if (ndlp->nlp_DID == did) 4828 return 1; 4829 4830 /* Next check for area/domain identically equals 0 match */ 4831 mydid.un.word = vport->fc_myDID; 4832 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 4833 return 0; 4834 } 4835 4836 matchdid.un.word = did; 4837 ndlpdid.un.word = ndlp->nlp_DID; 4838 if (matchdid.un.b.id == ndlpdid.un.b.id) { 4839 if ((mydid.un.b.domain == matchdid.un.b.domain) && 4840 (mydid.un.b.area == matchdid.un.b.area)) { 4841 /* This code is supposed to match the ID 4842 * for a private loop device that is 4843 * connect to fl_port. But we need to 4844 * check that the port did not just go 4845 * from pt2pt to fabric or we could end 4846 * up matching ndlp->nlp_DID 000001 to 4847 * fabric DID 0x20101 4848 */ 4849 if ((ndlpdid.un.b.domain == 0) && 4850 (ndlpdid.un.b.area == 0)) { 4851 if (ndlpdid.un.b.id && 4852 vport->phba->fc_topology == 4853 LPFC_TOPOLOGY_LOOP) 4854 return 1; 4855 } 4856 return 0; 4857 } 4858 4859 matchdid.un.word = ndlp->nlp_DID; 4860 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 4861 (mydid.un.b.area == ndlpdid.un.b.area)) { 4862 if ((matchdid.un.b.domain == 0) && 4863 (matchdid.un.b.area == 0)) { 4864 if (matchdid.un.b.id) 4865 return 1; 4866 } 4867 } 4868 } 4869 return 0; 4870 } 4871 4872 /* Search for a nodelist entry */ 4873 static struct lpfc_nodelist * 4874 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4875 { 4876 struct lpfc_nodelist *ndlp; 4877 uint32_t data1; 4878 4879 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4880 if (lpfc_matchdid(vport, ndlp, did)) { 4881 data1 = (((uint32_t) ndlp->nlp_state << 24) | 4882 ((uint32_t) ndlp->nlp_xri << 16) | 4883 ((uint32_t) ndlp->nlp_type << 8) | 4884 ((uint32_t) ndlp->nlp_rpi & 0xff)); 4885 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4886 "0929 FIND node DID " 4887 "Data: x%p x%x x%x x%x %p\n", 4888 ndlp, ndlp->nlp_DID, 4889 ndlp->nlp_flag, data1, 4890 ndlp->active_rrqs_xri_bitmap); 4891 return ndlp; 4892 } 4893 } 4894 4895 /* FIND node did <did> NOT FOUND */ 4896 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4897 "0932 FIND node did x%x NOT FOUND.\n", did); 4898 return NULL; 4899 } 4900 4901 struct lpfc_nodelist * 4902 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4903 { 4904 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4905 struct lpfc_nodelist *ndlp; 4906 unsigned long iflags; 4907 4908 spin_lock_irqsave(shost->host_lock, iflags); 4909 ndlp = __lpfc_findnode_did(vport, did); 4910 spin_unlock_irqrestore(shost->host_lock, iflags); 4911 return ndlp; 4912 } 4913 4914 struct lpfc_nodelist * 4915 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 4916 { 4917 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4918 struct lpfc_nodelist *ndlp; 4919 4920 ndlp = lpfc_findnode_did(vport, did); 4921 if (!ndlp) { 4922 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 4923 lpfc_rscn_payload_check(vport, did) == 0) 4924 return NULL; 4925 ndlp = (struct lpfc_nodelist *) 4926 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 4927 if (!ndlp) 4928 return NULL; 4929 lpfc_nlp_init(vport, ndlp, did); 4930 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4931 spin_lock_irq(shost->host_lock); 4932 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4933 spin_unlock_irq(shost->host_lock); 4934 return ndlp; 4935 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4936 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 4937 if (!ndlp) 4938 return NULL; 4939 spin_lock_irq(shost->host_lock); 4940 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4941 spin_unlock_irq(shost->host_lock); 4942 return ndlp; 4943 } 4944 4945 if ((vport->fc_flag & FC_RSCN_MODE) && 4946 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 4947 if (lpfc_rscn_payload_check(vport, did)) { 4948 /* If we've already received a PLOGI from this NPort 4949 * we don't need to try to discover it again. 4950 */ 4951 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 4952 return NULL; 4953 4954 /* Since this node is marked for discovery, 4955 * delay timeout is not needed. 4956 */ 4957 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4958 spin_lock_irq(shost->host_lock); 4959 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4960 spin_unlock_irq(shost->host_lock); 4961 } else 4962 ndlp = NULL; 4963 } else { 4964 /* If we've already received a PLOGI from this NPort, 4965 * or we are already in the process of discovery on it, 4966 * we don't need to try to discover it again. 4967 */ 4968 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 4969 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 4970 ndlp->nlp_flag & NLP_RCV_PLOGI) 4971 return NULL; 4972 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4973 spin_lock_irq(shost->host_lock); 4974 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4975 spin_unlock_irq(shost->host_lock); 4976 } 4977 return ndlp; 4978 } 4979 4980 /* Build a list of nodes to discover based on the loopmap */ 4981 void 4982 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 4983 { 4984 struct lpfc_hba *phba = vport->phba; 4985 int j; 4986 uint32_t alpa, index; 4987 4988 if (!lpfc_is_link_up(phba)) 4989 return; 4990 4991 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 4992 return; 4993 4994 /* Check for loop map present or not */ 4995 if (phba->alpa_map[0]) { 4996 for (j = 1; j <= phba->alpa_map[0]; j++) { 4997 alpa = phba->alpa_map[j]; 4998 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 4999 continue; 5000 lpfc_setup_disc_node(vport, alpa); 5001 } 5002 } else { 5003 /* No alpamap, so try all alpa's */ 5004 for (j = 0; j < FC_MAXLOOP; j++) { 5005 /* If cfg_scan_down is set, start from highest 5006 * ALPA (0xef) to lowest (0x1). 5007 */ 5008 if (vport->cfg_scan_down) 5009 index = j; 5010 else 5011 index = FC_MAXLOOP - j - 1; 5012 alpa = lpfcAlpaArray[index]; 5013 if ((vport->fc_myDID & 0xff) == alpa) 5014 continue; 5015 lpfc_setup_disc_node(vport, alpa); 5016 } 5017 } 5018 return; 5019 } 5020 5021 void 5022 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5023 { 5024 LPFC_MBOXQ_t *mbox; 5025 struct lpfc_sli *psli = &phba->sli; 5026 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 5027 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 5028 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 5029 int rc; 5030 5031 /* 5032 * if it's not a physical port or if we already send 5033 * clear_la then don't send it. 5034 */ 5035 if ((phba->link_state >= LPFC_CLEAR_LA) || 5036 (vport->port_type != LPFC_PHYSICAL_PORT) || 5037 (phba->sli_rev == LPFC_SLI_REV4)) 5038 return; 5039 5040 /* Link up discovery */ 5041 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5042 phba->link_state = LPFC_CLEAR_LA; 5043 lpfc_clear_la(phba, mbox); 5044 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5045 mbox->vport = vport; 5046 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5047 if (rc == MBX_NOT_FINISHED) { 5048 mempool_free(mbox, phba->mbox_mem_pool); 5049 lpfc_disc_flush_list(vport); 5050 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5051 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5052 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5053 phba->link_state = LPFC_HBA_ERROR; 5054 } 5055 } 5056 } 5057 5058 /* Reg_vpi to tell firmware to resume normal operations */ 5059 void 5060 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5061 { 5062 LPFC_MBOXQ_t *regvpimbox; 5063 5064 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5065 if (regvpimbox) { 5066 lpfc_reg_vpi(vport, regvpimbox); 5067 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5068 regvpimbox->vport = vport; 5069 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5070 == MBX_NOT_FINISHED) { 5071 mempool_free(regvpimbox, phba->mbox_mem_pool); 5072 } 5073 } 5074 } 5075 5076 /* Start Link up / RSCN discovery on NPR nodes */ 5077 void 5078 lpfc_disc_start(struct lpfc_vport *vport) 5079 { 5080 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5081 struct lpfc_hba *phba = vport->phba; 5082 uint32_t num_sent; 5083 uint32_t clear_la_pending; 5084 5085 if (!lpfc_is_link_up(phba)) { 5086 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5087 "3315 Link is not up %x\n", 5088 phba->link_state); 5089 return; 5090 } 5091 5092 if (phba->link_state == LPFC_CLEAR_LA) 5093 clear_la_pending = 1; 5094 else 5095 clear_la_pending = 0; 5096 5097 if (vport->port_state < LPFC_VPORT_READY) 5098 vport->port_state = LPFC_DISC_AUTH; 5099 5100 lpfc_set_disctmo(vport); 5101 5102 vport->fc_prevDID = vport->fc_myDID; 5103 vport->num_disc_nodes = 0; 5104 5105 /* Start Discovery state <hba_state> */ 5106 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5107 "0202 Start Discovery hba state x%x " 5108 "Data: x%x x%x x%x\n", 5109 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5110 vport->fc_adisc_cnt); 5111 5112 /* First do ADISCs - if any */ 5113 num_sent = lpfc_els_disc_adisc(vport); 5114 5115 if (num_sent) 5116 return; 5117 5118 /* Register the VPI for SLI3, NPIV only. */ 5119 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5120 !(vport->fc_flag & FC_PT2PT) && 5121 !(vport->fc_flag & FC_RSCN_MODE) && 5122 (phba->sli_rev < LPFC_SLI_REV4)) { 5123 lpfc_issue_clear_la(phba, vport); 5124 lpfc_issue_reg_vpi(phba, vport); 5125 return; 5126 } 5127 5128 /* 5129 * For SLI2, we need to set port_state to READY and continue 5130 * discovery. 5131 */ 5132 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5133 /* If we get here, there is nothing to ADISC */ 5134 lpfc_issue_clear_la(phba, vport); 5135 5136 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5137 vport->num_disc_nodes = 0; 5138 /* go thru NPR nodes and issue ELS PLOGIs */ 5139 if (vport->fc_npr_cnt) 5140 lpfc_els_disc_plogi(vport); 5141 5142 if (!vport->num_disc_nodes) { 5143 spin_lock_irq(shost->host_lock); 5144 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5145 spin_unlock_irq(shost->host_lock); 5146 lpfc_can_disctmo(vport); 5147 } 5148 } 5149 vport->port_state = LPFC_VPORT_READY; 5150 } else { 5151 /* Next do PLOGIs - if any */ 5152 num_sent = lpfc_els_disc_plogi(vport); 5153 5154 if (num_sent) 5155 return; 5156 5157 if (vport->fc_flag & FC_RSCN_MODE) { 5158 /* Check to see if more RSCNs came in while we 5159 * were processing this one. 5160 */ 5161 if ((vport->fc_rscn_id_cnt == 0) && 5162 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5163 spin_lock_irq(shost->host_lock); 5164 vport->fc_flag &= ~FC_RSCN_MODE; 5165 spin_unlock_irq(shost->host_lock); 5166 lpfc_can_disctmo(vport); 5167 } else 5168 lpfc_els_handle_rscn(vport); 5169 } 5170 } 5171 return; 5172 } 5173 5174 /* 5175 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5176 * ring the match the sppecified nodelist. 5177 */ 5178 static void 5179 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5180 { 5181 LIST_HEAD(completions); 5182 struct lpfc_sli *psli; 5183 IOCB_t *icmd; 5184 struct lpfc_iocbq *iocb, *next_iocb; 5185 struct lpfc_sli_ring *pring; 5186 5187 psli = &phba->sli; 5188 pring = &psli->ring[LPFC_ELS_RING]; 5189 5190 /* Error matching iocb on txq or txcmplq 5191 * First check the txq. 5192 */ 5193 spin_lock_irq(&phba->hbalock); 5194 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5195 if (iocb->context1 != ndlp) { 5196 continue; 5197 } 5198 icmd = &iocb->iocb; 5199 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5200 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5201 5202 list_move_tail(&iocb->list, &completions); 5203 } 5204 } 5205 5206 /* Next check the txcmplq */ 5207 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5208 if (iocb->context1 != ndlp) { 5209 continue; 5210 } 5211 icmd = &iocb->iocb; 5212 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5213 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5214 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5215 } 5216 } 5217 spin_unlock_irq(&phba->hbalock); 5218 5219 /* Cancel all the IOCBs from the completions list */ 5220 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5221 IOERR_SLI_ABORTED); 5222 } 5223 5224 static void 5225 lpfc_disc_flush_list(struct lpfc_vport *vport) 5226 { 5227 struct lpfc_nodelist *ndlp, *next_ndlp; 5228 struct lpfc_hba *phba = vport->phba; 5229 5230 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5231 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5232 nlp_listp) { 5233 if (!NLP_CHK_NODE_ACT(ndlp)) 5234 continue; 5235 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5236 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5237 lpfc_free_tx(phba, ndlp); 5238 } 5239 } 5240 } 5241 } 5242 5243 void 5244 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5245 { 5246 lpfc_els_flush_rscn(vport); 5247 lpfc_els_flush_cmd(vport); 5248 lpfc_disc_flush_list(vport); 5249 } 5250 5251 /*****************************************************************************/ 5252 /* 5253 * NAME: lpfc_disc_timeout 5254 * 5255 * FUNCTION: Fibre Channel driver discovery timeout routine. 5256 * 5257 * EXECUTION ENVIRONMENT: interrupt only 5258 * 5259 * CALLED FROM: 5260 * Timer function 5261 * 5262 * RETURNS: 5263 * none 5264 */ 5265 /*****************************************************************************/ 5266 void 5267 lpfc_disc_timeout(unsigned long ptr) 5268 { 5269 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5270 struct lpfc_hba *phba = vport->phba; 5271 uint32_t tmo_posted; 5272 unsigned long flags = 0; 5273 5274 if (unlikely(!phba)) 5275 return; 5276 5277 spin_lock_irqsave(&vport->work_port_lock, flags); 5278 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5279 if (!tmo_posted) 5280 vport->work_port_events |= WORKER_DISC_TMO; 5281 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5282 5283 if (!tmo_posted) 5284 lpfc_worker_wake_up(phba); 5285 return; 5286 } 5287 5288 static void 5289 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5290 { 5291 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5292 struct lpfc_hba *phba = vport->phba; 5293 struct lpfc_sli *psli = &phba->sli; 5294 struct lpfc_nodelist *ndlp, *next_ndlp; 5295 LPFC_MBOXQ_t *initlinkmbox; 5296 int rc, clrlaerr = 0; 5297 5298 if (!(vport->fc_flag & FC_DISC_TMO)) 5299 return; 5300 5301 spin_lock_irq(shost->host_lock); 5302 vport->fc_flag &= ~FC_DISC_TMO; 5303 spin_unlock_irq(shost->host_lock); 5304 5305 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5306 "disc timeout: state:x%x rtry:x%x flg:x%x", 5307 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5308 5309 switch (vport->port_state) { 5310 5311 case LPFC_LOCAL_CFG_LINK: 5312 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 5313 * FAN 5314 */ 5315 /* FAN timeout */ 5316 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5317 "0221 FAN timeout\n"); 5318 /* Start discovery by sending FLOGI, clean up old rpis */ 5319 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5320 nlp_listp) { 5321 if (!NLP_CHK_NODE_ACT(ndlp)) 5322 continue; 5323 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5324 continue; 5325 if (ndlp->nlp_type & NLP_FABRIC) { 5326 /* Clean up the ndlp on Fabric connections */ 5327 lpfc_drop_node(vport, ndlp); 5328 5329 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5330 /* Fail outstanding IO now since device 5331 * is marked for PLOGI. 5332 */ 5333 lpfc_unreg_rpi(vport, ndlp); 5334 } 5335 } 5336 if (vport->port_state != LPFC_FLOGI) { 5337 if (phba->sli_rev <= LPFC_SLI_REV3) 5338 lpfc_initial_flogi(vport); 5339 else 5340 lpfc_issue_init_vfi(vport); 5341 return; 5342 } 5343 break; 5344 5345 case LPFC_FDISC: 5346 case LPFC_FLOGI: 5347 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5348 /* Initial FLOGI timeout */ 5349 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5350 "0222 Initial %s timeout\n", 5351 vport->vpi ? "FDISC" : "FLOGI"); 5352 5353 /* Assume no Fabric and go on with discovery. 5354 * Check for outstanding ELS FLOGI to abort. 5355 */ 5356 5357 /* FLOGI failed, so just use loop map to make discovery list */ 5358 lpfc_disc_list_loopmap(vport); 5359 5360 /* Start discovery */ 5361 lpfc_disc_start(vport); 5362 break; 5363 5364 case LPFC_FABRIC_CFG_LINK: 5365 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5366 NameServer login */ 5367 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5368 "0223 Timeout while waiting for " 5369 "NameServer login\n"); 5370 /* Next look for NameServer ndlp */ 5371 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5372 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5373 lpfc_els_abort(phba, ndlp); 5374 5375 /* ReStart discovery */ 5376 goto restart_disc; 5377 5378 case LPFC_NS_QRY: 5379 /* Check for wait for NameServer Rsp timeout */ 5380 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5381 "0224 NameServer Query timeout " 5382 "Data: x%x x%x\n", 5383 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5384 5385 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5386 /* Try it one more time */ 5387 vport->fc_ns_retry++; 5388 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 5389 vport->fc_ns_retry, 0); 5390 if (rc == 0) 5391 break; 5392 } 5393 vport->fc_ns_retry = 0; 5394 5395 restart_disc: 5396 /* 5397 * Discovery is over. 5398 * set port_state to PORT_READY if SLI2. 5399 * cmpl_reg_vpi will set port_state to READY for SLI3. 5400 */ 5401 if (phba->sli_rev < LPFC_SLI_REV4) { 5402 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5403 lpfc_issue_reg_vpi(phba, vport); 5404 else { 5405 lpfc_issue_clear_la(phba, vport); 5406 vport->port_state = LPFC_VPORT_READY; 5407 } 5408 } 5409 5410 /* Setup and issue mailbox INITIALIZE LINK command */ 5411 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5412 if (!initlinkmbox) { 5413 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5414 "0206 Device Discovery " 5415 "completion error\n"); 5416 phba->link_state = LPFC_HBA_ERROR; 5417 break; 5418 } 5419 5420 lpfc_linkdown(phba); 5421 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5422 phba->cfg_link_speed); 5423 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5424 initlinkmbox->vport = vport; 5425 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5426 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5427 lpfc_set_loopback_flag(phba); 5428 if (rc == MBX_NOT_FINISHED) 5429 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5430 5431 break; 5432 5433 case LPFC_DISC_AUTH: 5434 /* Node Authentication timeout */ 5435 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5436 "0227 Node Authentication timeout\n"); 5437 lpfc_disc_flush_list(vport); 5438 5439 /* 5440 * set port_state to PORT_READY if SLI2. 5441 * cmpl_reg_vpi will set port_state to READY for SLI3. 5442 */ 5443 if (phba->sli_rev < LPFC_SLI_REV4) { 5444 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5445 lpfc_issue_reg_vpi(phba, vport); 5446 else { /* NPIV Not enabled */ 5447 lpfc_issue_clear_la(phba, vport); 5448 vport->port_state = LPFC_VPORT_READY; 5449 } 5450 } 5451 break; 5452 5453 case LPFC_VPORT_READY: 5454 if (vport->fc_flag & FC_RSCN_MODE) { 5455 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5456 "0231 RSCN timeout Data: x%x " 5457 "x%x\n", 5458 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5459 5460 /* Cleanup any outstanding ELS commands */ 5461 lpfc_els_flush_cmd(vport); 5462 5463 lpfc_els_flush_rscn(vport); 5464 lpfc_disc_flush_list(vport); 5465 } 5466 break; 5467 5468 default: 5469 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5470 "0273 Unexpected discovery timeout, " 5471 "vport State x%x\n", vport->port_state); 5472 break; 5473 } 5474 5475 switch (phba->link_state) { 5476 case LPFC_CLEAR_LA: 5477 /* CLEAR LA timeout */ 5478 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5479 "0228 CLEAR LA timeout\n"); 5480 clrlaerr = 1; 5481 break; 5482 5483 case LPFC_LINK_UP: 5484 lpfc_issue_clear_la(phba, vport); 5485 /* Drop thru */ 5486 case LPFC_LINK_UNKNOWN: 5487 case LPFC_WARM_START: 5488 case LPFC_INIT_START: 5489 case LPFC_INIT_MBX_CMDS: 5490 case LPFC_LINK_DOWN: 5491 case LPFC_HBA_ERROR: 5492 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5493 "0230 Unexpected timeout, hba link " 5494 "state x%x\n", phba->link_state); 5495 clrlaerr = 1; 5496 break; 5497 5498 case LPFC_HBA_READY: 5499 break; 5500 } 5501 5502 if (clrlaerr) { 5503 lpfc_disc_flush_list(vport); 5504 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5505 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5506 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5507 vport->port_state = LPFC_VPORT_READY; 5508 } 5509 5510 return; 5511 } 5512 5513 /* 5514 * This routine handles processing a NameServer REG_LOGIN mailbox 5515 * command upon completion. It is setup in the LPFC_MBOXQ 5516 * as the completion routine when the command is 5517 * handed off to the SLI layer. 5518 */ 5519 void 5520 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5521 { 5522 MAILBOX_t *mb = &pmb->u.mb; 5523 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5524 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5525 struct lpfc_vport *vport = pmb->vport; 5526 5527 pmb->context1 = NULL; 5528 pmb->context2 = NULL; 5529 5530 if (phba->sli_rev < LPFC_SLI_REV4) 5531 ndlp->nlp_rpi = mb->un.varWords[0]; 5532 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5533 ndlp->nlp_type |= NLP_FABRIC; 5534 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5535 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5536 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5537 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5538 atomic_read(&ndlp->kref.refcount), 5539 ndlp->nlp_usg_map, ndlp); 5540 /* 5541 * Start issuing Fabric-Device Management Interface (FDMI) command to 5542 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if 5543 * fdmi-on=2 (supporting RPA/hostnmae) 5544 */ 5545 5546 if (vport->cfg_fdmi_on & LPFC_FDMI_REG_DELAY) 5547 mod_timer(&vport->fc_fdmitmo, 5548 jiffies + msecs_to_jiffies(1000 * 60)); 5549 else 5550 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA); 5551 5552 /* decrement the node reference count held for this callback 5553 * function. 5554 */ 5555 lpfc_nlp_put(ndlp); 5556 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5557 kfree(mp); 5558 mempool_free(pmb, phba->mbox_mem_pool); 5559 5560 return; 5561 } 5562 5563 static int 5564 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5565 { 5566 uint16_t *rpi = param; 5567 5568 /* check for active node */ 5569 if (!NLP_CHK_NODE_ACT(ndlp)) 5570 return 0; 5571 5572 return ndlp->nlp_rpi == *rpi; 5573 } 5574 5575 static int 5576 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5577 { 5578 return memcmp(&ndlp->nlp_portname, param, 5579 sizeof(ndlp->nlp_portname)) == 0; 5580 } 5581 5582 static struct lpfc_nodelist * 5583 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5584 { 5585 struct lpfc_nodelist *ndlp; 5586 5587 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5588 if (filter(ndlp, param)) { 5589 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5590 "3185 FIND node filter %p DID " 5591 "Data: x%p x%x x%x\n", 5592 filter, ndlp, ndlp->nlp_DID, 5593 ndlp->nlp_flag); 5594 return ndlp; 5595 } 5596 } 5597 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5598 "3186 FIND node filter %p NOT FOUND.\n", filter); 5599 return NULL; 5600 } 5601 5602 /* 5603 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5604 * returns the node list element pointer else return NULL. 5605 */ 5606 struct lpfc_nodelist * 5607 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5608 { 5609 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5610 } 5611 5612 /* 5613 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5614 * returns the node element list pointer else return NULL. 5615 */ 5616 struct lpfc_nodelist * 5617 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5618 { 5619 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5620 struct lpfc_nodelist *ndlp; 5621 5622 spin_lock_irq(shost->host_lock); 5623 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5624 spin_unlock_irq(shost->host_lock); 5625 return ndlp; 5626 } 5627 5628 /* 5629 * This routine looks up the ndlp lists for the given RPI. If the rpi 5630 * is found, the routine returns the node element list pointer else 5631 * return NULL. 5632 */ 5633 struct lpfc_nodelist * 5634 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5635 { 5636 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5637 struct lpfc_nodelist *ndlp; 5638 5639 spin_lock_irq(shost->host_lock); 5640 ndlp = __lpfc_findnode_rpi(vport, rpi); 5641 spin_unlock_irq(shost->host_lock); 5642 return ndlp; 5643 } 5644 5645 /** 5646 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5647 * @phba: pointer to lpfc hba data structure. 5648 * @vpi: the physical host virtual N_Port identifier. 5649 * 5650 * This routine finds a vport on a HBA (referred by @phba) through a 5651 * @vpi. The function walks the HBA's vport list and returns the address 5652 * of the vport with the matching @vpi. 5653 * 5654 * Return code 5655 * NULL - No vport with the matching @vpi found 5656 * Otherwise - Address to the vport with the matching @vpi. 5657 **/ 5658 struct lpfc_vport * 5659 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5660 { 5661 struct lpfc_vport *vport; 5662 unsigned long flags; 5663 int i = 0; 5664 5665 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5666 if (vpi > 0) { 5667 /* 5668 * Translate the physical vpi to the logical vpi. The 5669 * vport stores the logical vpi. 5670 */ 5671 for (i = 0; i < phba->max_vpi; i++) { 5672 if (vpi == phba->vpi_ids[i]) 5673 break; 5674 } 5675 5676 if (i >= phba->max_vpi) { 5677 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5678 "2936 Could not find Vport mapped " 5679 "to vpi %d\n", vpi); 5680 return NULL; 5681 } 5682 } 5683 5684 spin_lock_irqsave(&phba->hbalock, flags); 5685 list_for_each_entry(vport, &phba->port_list, listentry) { 5686 if (vport->vpi == i) { 5687 spin_unlock_irqrestore(&phba->hbalock, flags); 5688 return vport; 5689 } 5690 } 5691 spin_unlock_irqrestore(&phba->hbalock, flags); 5692 return NULL; 5693 } 5694 5695 void 5696 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5697 uint32_t did) 5698 { 5699 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5700 5701 lpfc_initialize_node(vport, ndlp, did); 5702 INIT_LIST_HEAD(&ndlp->nlp_listp); 5703 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5704 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 5705 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5706 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5707 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5708 ndlp->nlp_flag, 5709 atomic_read(&ndlp->kref.refcount), 5710 ndlp->nlp_usg_map, ndlp); 5711 5712 ndlp->active_rrqs_xri_bitmap = 5713 mempool_alloc(vport->phba->active_rrq_pool, 5714 GFP_KERNEL); 5715 if (ndlp->active_rrqs_xri_bitmap) 5716 memset(ndlp->active_rrqs_xri_bitmap, 0, 5717 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5718 } 5719 5720 5721 5722 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5723 "node init: did:x%x", 5724 ndlp->nlp_DID, 0, 0); 5725 5726 return; 5727 } 5728 5729 /* This routine releases all resources associated with a specifc NPort's ndlp 5730 * and mempool_free's the nodelist. 5731 */ 5732 static void 5733 lpfc_nlp_release(struct kref *kref) 5734 { 5735 struct lpfc_hba *phba; 5736 unsigned long flags; 5737 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5738 kref); 5739 5740 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5741 "node release: did:x%x flg:x%x type:x%x", 5742 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5743 5744 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5745 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5746 "usgmap:x%x refcnt:%d rpi:%x\n", 5747 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5748 atomic_read(&ndlp->kref.refcount), ndlp->nlp_rpi); 5749 5750 /* remove ndlp from action. */ 5751 lpfc_nlp_remove(ndlp->vport, ndlp); 5752 5753 /* clear the ndlp active flag for all release cases */ 5754 phba = ndlp->phba; 5755 spin_lock_irqsave(&phba->ndlp_lock, flags); 5756 NLP_CLR_NODE_ACT(ndlp); 5757 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5758 if (phba->sli_rev == LPFC_SLI_REV4) 5759 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5760 5761 /* free ndlp memory for final ndlp release */ 5762 if (NLP_CHK_FREE_REQ(ndlp)) { 5763 kfree(ndlp->lat_data); 5764 if (phba->sli_rev == LPFC_SLI_REV4) 5765 mempool_free(ndlp->active_rrqs_xri_bitmap, 5766 ndlp->phba->active_rrq_pool); 5767 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5768 } 5769 } 5770 5771 /* This routine bumps the reference count for a ndlp structure to ensure 5772 * that one discovery thread won't free a ndlp while another discovery thread 5773 * is using it. 5774 */ 5775 struct lpfc_nodelist * 5776 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5777 { 5778 struct lpfc_hba *phba; 5779 unsigned long flags; 5780 5781 if (ndlp) { 5782 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5783 "node get: did:x%x flg:x%x refcnt:x%x", 5784 ndlp->nlp_DID, ndlp->nlp_flag, 5785 atomic_read(&ndlp->kref.refcount)); 5786 /* The check of ndlp usage to prevent incrementing the 5787 * ndlp reference count that is in the process of being 5788 * released. 5789 */ 5790 phba = ndlp->phba; 5791 spin_lock_irqsave(&phba->ndlp_lock, flags); 5792 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5793 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5794 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5795 "0276 lpfc_nlp_get: ndlp:x%p " 5796 "usgmap:x%x refcnt:%d\n", 5797 (void *)ndlp, ndlp->nlp_usg_map, 5798 atomic_read(&ndlp->kref.refcount)); 5799 return NULL; 5800 } else 5801 kref_get(&ndlp->kref); 5802 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5803 } 5804 return ndlp; 5805 } 5806 5807 /* This routine decrements the reference count for a ndlp structure. If the 5808 * count goes to 0, this indicates the the associated nodelist should be 5809 * freed. Returning 1 indicates the ndlp resource has been released; on the 5810 * other hand, returning 0 indicates the ndlp resource has not been released 5811 * yet. 5812 */ 5813 int 5814 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 5815 { 5816 struct lpfc_hba *phba; 5817 unsigned long flags; 5818 5819 if (!ndlp) 5820 return 1; 5821 5822 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5823 "node put: did:x%x flg:x%x refcnt:x%x", 5824 ndlp->nlp_DID, ndlp->nlp_flag, 5825 atomic_read(&ndlp->kref.refcount)); 5826 phba = ndlp->phba; 5827 spin_lock_irqsave(&phba->ndlp_lock, flags); 5828 /* Check the ndlp memory free acknowledge flag to avoid the 5829 * possible race condition that kref_put got invoked again 5830 * after previous one has done ndlp memory free. 5831 */ 5832 if (NLP_CHK_FREE_ACK(ndlp)) { 5833 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5834 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5835 "0274 lpfc_nlp_put: ndlp:x%p " 5836 "usgmap:x%x refcnt:%d\n", 5837 (void *)ndlp, ndlp->nlp_usg_map, 5838 atomic_read(&ndlp->kref.refcount)); 5839 return 1; 5840 } 5841 /* Check the ndlp inactivate log flag to avoid the possible 5842 * race condition that kref_put got invoked again after ndlp 5843 * is already in inactivating state. 5844 */ 5845 if (NLP_CHK_IACT_REQ(ndlp)) { 5846 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5847 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5848 "0275 lpfc_nlp_put: ndlp:x%p " 5849 "usgmap:x%x refcnt:%d\n", 5850 (void *)ndlp, ndlp->nlp_usg_map, 5851 atomic_read(&ndlp->kref.refcount)); 5852 return 1; 5853 } 5854 /* For last put, mark the ndlp usage flags to make sure no 5855 * other kref_get and kref_put on the same ndlp shall get 5856 * in between the process when the final kref_put has been 5857 * invoked on this ndlp. 5858 */ 5859 if (atomic_read(&ndlp->kref.refcount) == 1) { 5860 /* Indicate ndlp is put to inactive state. */ 5861 NLP_SET_IACT_REQ(ndlp); 5862 /* Acknowledge ndlp memory free has been seen. */ 5863 if (NLP_CHK_FREE_REQ(ndlp)) 5864 NLP_SET_FREE_ACK(ndlp); 5865 } 5866 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5867 /* Note, the kref_put returns 1 when decrementing a reference 5868 * count that was 1, it invokes the release callback function, 5869 * but it still left the reference count as 1 (not actually 5870 * performs the last decrementation). Otherwise, it actually 5871 * decrements the reference count and returns 0. 5872 */ 5873 return kref_put(&ndlp->kref, lpfc_nlp_release); 5874 } 5875 5876 /* This routine free's the specified nodelist if it is not in use 5877 * by any other discovery thread. This routine returns 1 if the 5878 * ndlp has been freed. A return value of 0 indicates the ndlp is 5879 * not yet been released. 5880 */ 5881 int 5882 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 5883 { 5884 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5885 "node not used: did:x%x flg:x%x refcnt:x%x", 5886 ndlp->nlp_DID, ndlp->nlp_flag, 5887 atomic_read(&ndlp->kref.refcount)); 5888 if (atomic_read(&ndlp->kref.refcount) == 1) 5889 if (lpfc_nlp_put(ndlp)) 5890 return 1; 5891 return 0; 5892 } 5893 5894 /** 5895 * lpfc_fcf_inuse - Check if FCF can be unregistered. 5896 * @phba: Pointer to hba context object. 5897 * 5898 * This function iterate through all FC nodes associated 5899 * will all vports to check if there is any node with 5900 * fc_rports associated with it. If there is an fc_rport 5901 * associated with the node, then the node is either in 5902 * discovered state or its devloss_timer is pending. 5903 */ 5904 static int 5905 lpfc_fcf_inuse(struct lpfc_hba *phba) 5906 { 5907 struct lpfc_vport **vports; 5908 int i, ret = 0; 5909 struct lpfc_nodelist *ndlp; 5910 struct Scsi_Host *shost; 5911 5912 vports = lpfc_create_vport_work_array(phba); 5913 5914 /* If driver cannot allocate memory, indicate fcf is in use */ 5915 if (!vports) 5916 return 1; 5917 5918 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5919 shost = lpfc_shost_from_vport(vports[i]); 5920 spin_lock_irq(shost->host_lock); 5921 /* 5922 * IF the CVL_RCVD bit is not set then we have sent the 5923 * flogi. 5924 * If dev_loss fires while we are waiting we do not want to 5925 * unreg the fcf. 5926 */ 5927 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 5928 spin_unlock_irq(shost->host_lock); 5929 ret = 1; 5930 goto out; 5931 } 5932 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5933 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 5934 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 5935 ret = 1; 5936 spin_unlock_irq(shost->host_lock); 5937 goto out; 5938 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5939 ret = 1; 5940 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 5941 "2624 RPI %x DID %x flag %x " 5942 "still logged in\n", 5943 ndlp->nlp_rpi, ndlp->nlp_DID, 5944 ndlp->nlp_flag); 5945 } 5946 } 5947 spin_unlock_irq(shost->host_lock); 5948 } 5949 out: 5950 lpfc_destroy_vport_work_array(phba, vports); 5951 return ret; 5952 } 5953 5954 /** 5955 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 5956 * @phba: Pointer to hba context object. 5957 * @mboxq: Pointer to mailbox object. 5958 * 5959 * This function frees memory associated with the mailbox command. 5960 */ 5961 void 5962 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5963 { 5964 struct lpfc_vport *vport = mboxq->vport; 5965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5966 5967 if (mboxq->u.mb.mbxStatus) { 5968 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5969 "2555 UNREG_VFI mbxStatus error x%x " 5970 "HBA state x%x\n", 5971 mboxq->u.mb.mbxStatus, vport->port_state); 5972 } 5973 spin_lock_irq(shost->host_lock); 5974 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 5975 spin_unlock_irq(shost->host_lock); 5976 mempool_free(mboxq, phba->mbox_mem_pool); 5977 return; 5978 } 5979 5980 /** 5981 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 5982 * @phba: Pointer to hba context object. 5983 * @mboxq: Pointer to mailbox object. 5984 * 5985 * This function frees memory associated with the mailbox command. 5986 */ 5987 static void 5988 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5989 { 5990 struct lpfc_vport *vport = mboxq->vport; 5991 5992 if (mboxq->u.mb.mbxStatus) { 5993 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5994 "2550 UNREG_FCFI mbxStatus error x%x " 5995 "HBA state x%x\n", 5996 mboxq->u.mb.mbxStatus, vport->port_state); 5997 } 5998 mempool_free(mboxq, phba->mbox_mem_pool); 5999 return; 6000 } 6001 6002 /** 6003 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6004 * @phba: Pointer to hba context object. 6005 * 6006 * This function prepare the HBA for unregistering the currently registered 6007 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6008 * VFIs. 6009 */ 6010 int 6011 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6012 { 6013 struct lpfc_vport **vports; 6014 struct lpfc_nodelist *ndlp; 6015 struct Scsi_Host *shost; 6016 int i = 0, rc; 6017 6018 /* Unregister RPIs */ 6019 if (lpfc_fcf_inuse(phba)) 6020 lpfc_unreg_hba_rpis(phba); 6021 6022 /* At this point, all discovery is aborted */ 6023 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6024 6025 /* Unregister VPIs */ 6026 vports = lpfc_create_vport_work_array(phba); 6027 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6028 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6029 /* Stop FLOGI/FDISC retries */ 6030 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6031 if (ndlp) 6032 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6033 lpfc_cleanup_pending_mbox(vports[i]); 6034 if (phba->sli_rev == LPFC_SLI_REV4) 6035 lpfc_sli4_unreg_all_rpis(vports[i]); 6036 lpfc_mbx_unreg_vpi(vports[i]); 6037 shost = lpfc_shost_from_vport(vports[i]); 6038 spin_lock_irq(shost->host_lock); 6039 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6040 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6041 spin_unlock_irq(shost->host_lock); 6042 } 6043 lpfc_destroy_vport_work_array(phba, vports); 6044 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6045 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6046 if (ndlp) 6047 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6048 lpfc_cleanup_pending_mbox(phba->pport); 6049 if (phba->sli_rev == LPFC_SLI_REV4) 6050 lpfc_sli4_unreg_all_rpis(phba->pport); 6051 lpfc_mbx_unreg_vpi(phba->pport); 6052 shost = lpfc_shost_from_vport(phba->pport); 6053 spin_lock_irq(shost->host_lock); 6054 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6055 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6056 spin_unlock_irq(shost->host_lock); 6057 } 6058 6059 /* Cleanup any outstanding ELS commands */ 6060 lpfc_els_flush_all_cmd(phba); 6061 6062 /* Unregister the physical port VFI */ 6063 rc = lpfc_issue_unreg_vfi(phba->pport); 6064 return rc; 6065 } 6066 6067 /** 6068 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6069 * @phba: Pointer to hba context object. 6070 * 6071 * This function issues synchronous unregister FCF mailbox command to HBA to 6072 * unregister the currently registered FCF record. The driver does not reset 6073 * the driver FCF usage state flags. 6074 * 6075 * Return 0 if successfully issued, none-zero otherwise. 6076 */ 6077 int 6078 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6079 { 6080 LPFC_MBOXQ_t *mbox; 6081 int rc; 6082 6083 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6084 if (!mbox) { 6085 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6086 "2551 UNREG_FCFI mbox allocation failed" 6087 "HBA state x%x\n", phba->pport->port_state); 6088 return -ENOMEM; 6089 } 6090 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6091 mbox->vport = phba->pport; 6092 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6093 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6094 6095 if (rc == MBX_NOT_FINISHED) { 6096 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6097 "2552 Unregister FCFI command failed rc x%x " 6098 "HBA state x%x\n", 6099 rc, phba->pport->port_state); 6100 return -EINVAL; 6101 } 6102 return 0; 6103 } 6104 6105 /** 6106 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6107 * @phba: Pointer to hba context object. 6108 * 6109 * This function unregisters the currently reigstered FCF. This function 6110 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6111 */ 6112 void 6113 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6114 { 6115 int rc; 6116 6117 /* Preparation for unregistering fcf */ 6118 rc = lpfc_unregister_fcf_prep(phba); 6119 if (rc) { 6120 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6121 "2748 Failed to prepare for unregistering " 6122 "HBA's FCF record: rc=%d\n", rc); 6123 return; 6124 } 6125 6126 /* Now, unregister FCF record and reset HBA FCF state */ 6127 rc = lpfc_sli4_unregister_fcf(phba); 6128 if (rc) 6129 return; 6130 /* Reset HBA FCF states after successful unregister FCF */ 6131 phba->fcf.fcf_flag = 0; 6132 phba->fcf.current_rec.flag = 0; 6133 6134 /* 6135 * If driver is not unloading, check if there is any other 6136 * FCF record that can be used for discovery. 6137 */ 6138 if ((phba->pport->load_flag & FC_UNLOADING) || 6139 (phba->link_state < LPFC_LINK_UP)) 6140 return; 6141 6142 /* This is considered as the initial FCF discovery scan */ 6143 spin_lock_irq(&phba->hbalock); 6144 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6145 spin_unlock_irq(&phba->hbalock); 6146 6147 /* Reset FCF roundrobin bmask for new discovery */ 6148 lpfc_sli4_clear_fcf_rr_bmask(phba); 6149 6150 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6151 6152 if (rc) { 6153 spin_lock_irq(&phba->hbalock); 6154 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6155 spin_unlock_irq(&phba->hbalock); 6156 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6157 "2553 lpfc_unregister_unused_fcf failed " 6158 "to read FCF record HBA state x%x\n", 6159 phba->pport->port_state); 6160 } 6161 } 6162 6163 /** 6164 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6165 * @phba: Pointer to hba context object. 6166 * 6167 * This function just unregisters the currently reigstered FCF. It does not 6168 * try to find another FCF for discovery. 6169 */ 6170 void 6171 lpfc_unregister_fcf(struct lpfc_hba *phba) 6172 { 6173 int rc; 6174 6175 /* Preparation for unregistering fcf */ 6176 rc = lpfc_unregister_fcf_prep(phba); 6177 if (rc) { 6178 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6179 "2749 Failed to prepare for unregistering " 6180 "HBA's FCF record: rc=%d\n", rc); 6181 return; 6182 } 6183 6184 /* Now, unregister FCF record and reset HBA FCF state */ 6185 rc = lpfc_sli4_unregister_fcf(phba); 6186 if (rc) 6187 return; 6188 /* Set proper HBA FCF states after successful unregister FCF */ 6189 spin_lock_irq(&phba->hbalock); 6190 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6191 spin_unlock_irq(&phba->hbalock); 6192 } 6193 6194 /** 6195 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6196 * @phba: Pointer to hba context object. 6197 * 6198 * This function check if there are any connected remote port for the FCF and 6199 * if all the devices are disconnected, this function unregister FCFI. 6200 * This function also tries to use another FCF for discovery. 6201 */ 6202 void 6203 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6204 { 6205 /* 6206 * If HBA is not running in FIP mode, if HBA does not support 6207 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6208 * registered, do nothing. 6209 */ 6210 spin_lock_irq(&phba->hbalock); 6211 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6212 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6213 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6214 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6215 (phba->pport->port_state == LPFC_FLOGI)) { 6216 spin_unlock_irq(&phba->hbalock); 6217 return; 6218 } 6219 spin_unlock_irq(&phba->hbalock); 6220 6221 if (lpfc_fcf_inuse(phba)) 6222 return; 6223 6224 lpfc_unregister_fcf_rescan(phba); 6225 } 6226 6227 /** 6228 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6229 * @phba: Pointer to hba context object. 6230 * @buff: Buffer containing the FCF connection table as in the config 6231 * region. 6232 * This function create driver data structure for the FCF connection 6233 * record table read from config region 23. 6234 */ 6235 static void 6236 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6237 uint8_t *buff) 6238 { 6239 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6240 struct lpfc_fcf_conn_hdr *conn_hdr; 6241 struct lpfc_fcf_conn_rec *conn_rec; 6242 uint32_t record_count; 6243 int i; 6244 6245 /* Free the current connect table */ 6246 list_for_each_entry_safe(conn_entry, next_conn_entry, 6247 &phba->fcf_conn_rec_list, list) { 6248 list_del_init(&conn_entry->list); 6249 kfree(conn_entry); 6250 } 6251 6252 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6253 record_count = conn_hdr->length * sizeof(uint32_t)/ 6254 sizeof(struct lpfc_fcf_conn_rec); 6255 6256 conn_rec = (struct lpfc_fcf_conn_rec *) 6257 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6258 6259 for (i = 0; i < record_count; i++) { 6260 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6261 continue; 6262 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6263 GFP_KERNEL); 6264 if (!conn_entry) { 6265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6266 "2566 Failed to allocate connection" 6267 " table entry\n"); 6268 return; 6269 } 6270 6271 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6272 sizeof(struct lpfc_fcf_conn_rec)); 6273 list_add_tail(&conn_entry->list, 6274 &phba->fcf_conn_rec_list); 6275 } 6276 6277 if (!list_empty(&phba->fcf_conn_rec_list)) { 6278 i = 0; 6279 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6280 list) { 6281 conn_rec = &conn_entry->conn_rec; 6282 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6283 "3345 FCF connection list rec[%02d]: " 6284 "flags:x%04x, vtag:x%04x, " 6285 "fabric_name:x%02x:%02x:%02x:%02x:" 6286 "%02x:%02x:%02x:%02x, " 6287 "switch_name:x%02x:%02x:%02x:%02x:" 6288 "%02x:%02x:%02x:%02x\n", i++, 6289 conn_rec->flags, conn_rec->vlan_tag, 6290 conn_rec->fabric_name[0], 6291 conn_rec->fabric_name[1], 6292 conn_rec->fabric_name[2], 6293 conn_rec->fabric_name[3], 6294 conn_rec->fabric_name[4], 6295 conn_rec->fabric_name[5], 6296 conn_rec->fabric_name[6], 6297 conn_rec->fabric_name[7], 6298 conn_rec->switch_name[0], 6299 conn_rec->switch_name[1], 6300 conn_rec->switch_name[2], 6301 conn_rec->switch_name[3], 6302 conn_rec->switch_name[4], 6303 conn_rec->switch_name[5], 6304 conn_rec->switch_name[6], 6305 conn_rec->switch_name[7]); 6306 } 6307 } 6308 } 6309 6310 /** 6311 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6312 * @phba: Pointer to hba context object. 6313 * @buff: Buffer containing the FCoE parameter data structure. 6314 * 6315 * This function update driver data structure with config 6316 * parameters read from config region 23. 6317 */ 6318 static void 6319 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6320 uint8_t *buff) 6321 { 6322 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6323 struct lpfc_fcoe_params *fcoe_param; 6324 6325 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6326 buff; 6327 fcoe_param = (struct lpfc_fcoe_params *) 6328 (buff + sizeof(struct lpfc_fip_param_hdr)); 6329 6330 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6331 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6332 return; 6333 6334 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6335 phba->valid_vlan = 1; 6336 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6337 0xFFF; 6338 } 6339 6340 phba->fc_map[0] = fcoe_param->fc_map[0]; 6341 phba->fc_map[1] = fcoe_param->fc_map[1]; 6342 phba->fc_map[2] = fcoe_param->fc_map[2]; 6343 return; 6344 } 6345 6346 /** 6347 * lpfc_get_rec_conf23 - Get a record type in config region data. 6348 * @buff: Buffer containing config region 23 data. 6349 * @size: Size of the data buffer. 6350 * @rec_type: Record type to be searched. 6351 * 6352 * This function searches config region data to find the beginning 6353 * of the record specified by record_type. If record found, this 6354 * function return pointer to the record else return NULL. 6355 */ 6356 static uint8_t * 6357 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6358 { 6359 uint32_t offset = 0, rec_length; 6360 6361 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6362 (size < sizeof(uint32_t))) 6363 return NULL; 6364 6365 rec_length = buff[offset + 1]; 6366 6367 /* 6368 * One TLV record has one word header and number of data words 6369 * specified in the rec_length field of the record header. 6370 */ 6371 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6372 <= size) { 6373 if (buff[offset] == rec_type) 6374 return &buff[offset]; 6375 6376 if (buff[offset] == LPFC_REGION23_LAST_REC) 6377 return NULL; 6378 6379 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6380 rec_length = buff[offset + 1]; 6381 } 6382 return NULL; 6383 } 6384 6385 /** 6386 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6387 * @phba: Pointer to lpfc_hba data structure. 6388 * @buff: Buffer containing config region 23 data. 6389 * @size: Size of the data buffer. 6390 * 6391 * This function parses the FCoE config parameters in config region 23 and 6392 * populate driver data structure with the parameters. 6393 */ 6394 void 6395 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6396 uint8_t *buff, 6397 uint32_t size) 6398 { 6399 uint32_t offset = 0; 6400 uint8_t *rec_ptr; 6401 6402 /* 6403 * If data size is less than 2 words signature and version cannot be 6404 * verified. 6405 */ 6406 if (size < 2*sizeof(uint32_t)) 6407 return; 6408 6409 /* Check the region signature first */ 6410 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6412 "2567 Config region 23 has bad signature\n"); 6413 return; 6414 } 6415 6416 offset += 4; 6417 6418 /* Check the data structure version */ 6419 if (buff[offset] != LPFC_REGION23_VERSION) { 6420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6421 "2568 Config region 23 has bad version\n"); 6422 return; 6423 } 6424 offset += 4; 6425 6426 /* Read FCoE param record */ 6427 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6428 size - offset, FCOE_PARAM_TYPE); 6429 if (rec_ptr) 6430 lpfc_read_fcoe_param(phba, rec_ptr); 6431 6432 /* Read FCF connection table */ 6433 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6434 size - offset, FCOE_CONN_TBL_TYPE); 6435 if (rec_ptr) 6436 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6437 6438 } 6439