1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2011 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 lpfc_hba *phba; 110 struct lpfc_work_evt *evtp; 111 int put_node; 112 int put_rport; 113 114 rdata = rport->dd_data; 115 ndlp = rdata->pnode; 116 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 117 return; 118 119 vport = ndlp->vport; 120 phba = vport->phba; 121 122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 123 "rport devlosscb: sid:x%x did:x%x flg:x%x", 124 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 125 126 /* Don't defer this if we are in the process of deleting the vport 127 * or unloading the driver. The unload will cleanup the node 128 * appropriately we just need to cleanup the ndlp rport info here. 129 */ 130 if (vport->load_flag & FC_UNLOADING) { 131 put_node = rdata->pnode != NULL; 132 put_rport = ndlp->rport != NULL; 133 rdata->pnode = NULL; 134 ndlp->rport = NULL; 135 if (put_node) 136 lpfc_nlp_put(ndlp); 137 if (put_rport) 138 put_device(&rport->dev); 139 return; 140 } 141 142 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 143 return; 144 145 evtp = &ndlp->dev_loss_evt; 146 147 if (!list_empty(&evtp->evt_listp)) 148 return; 149 150 spin_lock_irq(&phba->hbalock); 151 /* We need to hold the node by incrementing the reference 152 * count until this queued work is done 153 */ 154 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 155 if (evtp->evt_arg1) { 156 evtp->evt = LPFC_EVT_DEV_LOSS; 157 list_add_tail(&evtp->evt_listp, &phba->work_list); 158 lpfc_worker_wake_up(phba); 159 } 160 spin_unlock_irq(&phba->hbalock); 161 162 return; 163 } 164 165 /** 166 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 167 * @ndlp: Pointer to remote node object. 168 * 169 * This function is called from the worker thread when devloss timeout timer 170 * expires. For SLI4 host, this routine shall return 1 when at lease one 171 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 172 * routine shall return 0 when there is no remote node is still in use of FCF 173 * when devloss timeout happened to this @ndlp. 174 **/ 175 static int 176 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 177 { 178 struct lpfc_rport_data *rdata; 179 struct fc_rport *rport; 180 struct lpfc_vport *vport; 181 struct lpfc_hba *phba; 182 uint8_t *name; 183 int put_node; 184 int put_rport; 185 int warn_on = 0; 186 int fcf_inuse = 0; 187 188 rport = ndlp->rport; 189 190 if (!rport) 191 return fcf_inuse; 192 193 rdata = rport->dd_data; 194 name = (uint8_t *) &ndlp->nlp_portname; 195 vport = ndlp->vport; 196 phba = vport->phba; 197 198 if (phba->sli_rev == LPFC_SLI_REV4) 199 fcf_inuse = lpfc_fcf_inuse(phba); 200 201 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 202 "rport devlosstmo:did:x%x type:x%x id:x%x", 203 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 204 205 /* Don't defer this if we are in the process of deleting the vport 206 * or unloading the driver. The unload will cleanup the node 207 * appropriately we just need to cleanup the ndlp rport info here. 208 */ 209 if (vport->load_flag & FC_UNLOADING) { 210 if (ndlp->nlp_sid != NLP_NO_SID) { 211 /* flush the target */ 212 lpfc_sli_abort_iocb(vport, 213 &phba->sli.ring[phba->sli.fcp_ring], 214 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 215 } 216 put_node = rdata->pnode != NULL; 217 put_rport = ndlp->rport != NULL; 218 rdata->pnode = NULL; 219 ndlp->rport = NULL; 220 if (put_node) 221 lpfc_nlp_put(ndlp); 222 if (put_rport) 223 put_device(&rport->dev); 224 return fcf_inuse; 225 } 226 227 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 228 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 229 "0284 Devloss timeout Ignored on " 230 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 231 "NPort x%x\n", 232 *name, *(name+1), *(name+2), *(name+3), 233 *(name+4), *(name+5), *(name+6), *(name+7), 234 ndlp->nlp_DID); 235 return fcf_inuse; 236 } 237 238 if (ndlp->nlp_type & NLP_FABRIC) { 239 /* We will clean up these Nodes in linkup */ 240 put_node = rdata->pnode != NULL; 241 put_rport = ndlp->rport != NULL; 242 rdata->pnode = NULL; 243 ndlp->rport = NULL; 244 if (put_node) 245 lpfc_nlp_put(ndlp); 246 if (put_rport) 247 put_device(&rport->dev); 248 return fcf_inuse; 249 } 250 251 if (ndlp->nlp_sid != NLP_NO_SID) { 252 warn_on = 1; 253 /* flush the target */ 254 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 255 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 256 } 257 258 if (warn_on) { 259 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 260 "0203 Devloss timeout on " 261 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 262 "NPort x%06x Data: x%x x%x x%x\n", 263 *name, *(name+1), *(name+2), *(name+3), 264 *(name+4), *(name+5), *(name+6), *(name+7), 265 ndlp->nlp_DID, ndlp->nlp_flag, 266 ndlp->nlp_state, ndlp->nlp_rpi); 267 } else { 268 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 269 "0204 Devloss timeout on " 270 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 271 "NPort x%06x Data: x%x x%x x%x\n", 272 *name, *(name+1), *(name+2), *(name+3), 273 *(name+4), *(name+5), *(name+6), *(name+7), 274 ndlp->nlp_DID, ndlp->nlp_flag, 275 ndlp->nlp_state, ndlp->nlp_rpi); 276 } 277 278 put_node = rdata->pnode != NULL; 279 put_rport = ndlp->rport != NULL; 280 rdata->pnode = NULL; 281 ndlp->rport = NULL; 282 if (put_node) 283 lpfc_nlp_put(ndlp); 284 if (put_rport) 285 put_device(&rport->dev); 286 287 if (!(vport->load_flag & FC_UNLOADING) && 288 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 289 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 290 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 291 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 292 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 293 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 294 295 return fcf_inuse; 296 } 297 298 /** 299 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 300 * @phba: Pointer to hba context object. 301 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 302 * @nlp_did: remote node identifer with devloss timeout. 303 * 304 * This function is called from the worker thread after invoking devloss 305 * timeout handler and releasing the reference count for the ndlp with 306 * which the devloss timeout was handled for SLI4 host. For the devloss 307 * timeout of the last remote node which had been in use of FCF, when this 308 * routine is invoked, it shall be guaranteed that none of the remote are 309 * in-use of FCF. When devloss timeout to the last remote using the FCF, 310 * if the FIP engine is neither in FCF table scan process nor roundrobin 311 * failover process, the in-use FCF shall be unregistered. If the FIP 312 * engine is in FCF discovery process, the devloss timeout state shall 313 * be set for either the FCF table scan process or roundrobin failover 314 * process to unregister the in-use FCF. 315 **/ 316 static void 317 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 318 uint32_t nlp_did) 319 { 320 /* If devloss timeout happened to a remote node when FCF had no 321 * longer been in-use, do nothing. 322 */ 323 if (!fcf_inuse) 324 return; 325 326 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 327 spin_lock_irq(&phba->hbalock); 328 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 329 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 330 spin_unlock_irq(&phba->hbalock); 331 return; 332 } 333 phba->hba_flag |= HBA_DEVLOSS_TMO; 334 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 335 "2847 Last remote node (x%x) using " 336 "FCF devloss tmo\n", nlp_did); 337 } 338 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 339 spin_unlock_irq(&phba->hbalock); 340 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 341 "2868 Devloss tmo to FCF rediscovery " 342 "in progress\n"); 343 return; 344 } 345 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 346 spin_unlock_irq(&phba->hbalock); 347 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 348 "2869 Devloss tmo to idle FIP engine, " 349 "unreg in-use FCF and rescan.\n"); 350 /* Unregister in-use FCF and rescan */ 351 lpfc_unregister_fcf_rescan(phba); 352 return; 353 } 354 spin_unlock_irq(&phba->hbalock); 355 if (phba->hba_flag & FCF_TS_INPROG) 356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 357 "2870 FCF table scan in progress\n"); 358 if (phba->hba_flag & FCF_RR_INPROG) 359 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 360 "2871 FLOGI roundrobin FCF failover " 361 "in progress\n"); 362 } 363 lpfc_unregister_unused_fcf(phba); 364 } 365 366 /** 367 * lpfc_alloc_fast_evt - Allocates data structure for posting event 368 * @phba: Pointer to hba context object. 369 * 370 * This function is called from the functions which need to post 371 * events from interrupt context. This function allocates data 372 * structure required for posting event. It also keeps track of 373 * number of events pending and prevent event storm when there are 374 * too many events. 375 **/ 376 struct lpfc_fast_path_event * 377 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 378 struct lpfc_fast_path_event *ret; 379 380 /* If there are lot of fast event do not exhaust memory due to this */ 381 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 382 return NULL; 383 384 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 385 GFP_ATOMIC); 386 if (ret) { 387 atomic_inc(&phba->fast_event_count); 388 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 389 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 390 } 391 return ret; 392 } 393 394 /** 395 * lpfc_free_fast_evt - Frees event data structure 396 * @phba: Pointer to hba context object. 397 * @evt: Event object which need to be freed. 398 * 399 * This function frees the data structure required for posting 400 * events. 401 **/ 402 void 403 lpfc_free_fast_evt(struct lpfc_hba *phba, 404 struct lpfc_fast_path_event *evt) { 405 406 atomic_dec(&phba->fast_event_count); 407 kfree(evt); 408 } 409 410 /** 411 * lpfc_send_fastpath_evt - Posts events generated from fast path 412 * @phba: Pointer to hba context object. 413 * @evtp: Event data structure. 414 * 415 * This function is called from worker thread, when the interrupt 416 * context need to post an event. This function posts the event 417 * to fc transport netlink interface. 418 **/ 419 static void 420 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 421 struct lpfc_work_evt *evtp) 422 { 423 unsigned long evt_category, evt_sub_category; 424 struct lpfc_fast_path_event *fast_evt_data; 425 char *evt_data; 426 uint32_t evt_data_size; 427 struct Scsi_Host *shost; 428 429 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 430 work_evt); 431 432 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 433 evt_sub_category = (unsigned long) fast_evt_data->un. 434 fabric_evt.subcategory; 435 shost = lpfc_shost_from_vport(fast_evt_data->vport); 436 if (evt_category == FC_REG_FABRIC_EVENT) { 437 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 438 evt_data = (char *) &fast_evt_data->un.read_check_error; 439 evt_data_size = sizeof(fast_evt_data->un. 440 read_check_error); 441 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 442 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 443 evt_data = (char *) &fast_evt_data->un.fabric_evt; 444 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 445 } else { 446 lpfc_free_fast_evt(phba, fast_evt_data); 447 return; 448 } 449 } else if (evt_category == FC_REG_SCSI_EVENT) { 450 switch (evt_sub_category) { 451 case LPFC_EVENT_QFULL: 452 case LPFC_EVENT_DEVBSY: 453 evt_data = (char *) &fast_evt_data->un.scsi_evt; 454 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 455 break; 456 case LPFC_EVENT_CHECK_COND: 457 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 458 evt_data_size = sizeof(fast_evt_data->un. 459 check_cond_evt); 460 break; 461 case LPFC_EVENT_VARQUEDEPTH: 462 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 463 evt_data_size = sizeof(fast_evt_data->un. 464 queue_depth_evt); 465 break; 466 default: 467 lpfc_free_fast_evt(phba, fast_evt_data); 468 return; 469 } 470 } else { 471 lpfc_free_fast_evt(phba, fast_evt_data); 472 return; 473 } 474 475 fc_host_post_vendor_event(shost, 476 fc_get_event_number(), 477 evt_data_size, 478 evt_data, 479 LPFC_NL_VENDOR_ID); 480 481 lpfc_free_fast_evt(phba, fast_evt_data); 482 return; 483 } 484 485 static void 486 lpfc_work_list_done(struct lpfc_hba *phba) 487 { 488 struct lpfc_work_evt *evtp = NULL; 489 struct lpfc_nodelist *ndlp; 490 int free_evt; 491 int fcf_inuse; 492 uint32_t nlp_did; 493 494 spin_lock_irq(&phba->hbalock); 495 while (!list_empty(&phba->work_list)) { 496 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 497 evt_listp); 498 spin_unlock_irq(&phba->hbalock); 499 free_evt = 1; 500 switch (evtp->evt) { 501 case LPFC_EVT_ELS_RETRY: 502 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 503 lpfc_els_retry_delay_handler(ndlp); 504 free_evt = 0; /* evt is part of ndlp */ 505 /* decrement the node reference count held 506 * for this queued work 507 */ 508 lpfc_nlp_put(ndlp); 509 break; 510 case LPFC_EVT_DEV_LOSS: 511 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 512 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 513 free_evt = 0; 514 /* decrement the node reference count held for 515 * this queued work 516 */ 517 nlp_did = ndlp->nlp_DID; 518 lpfc_nlp_put(ndlp); 519 if (phba->sli_rev == LPFC_SLI_REV4) 520 lpfc_sli4_post_dev_loss_tmo_handler(phba, 521 fcf_inuse, 522 nlp_did); 523 break; 524 case LPFC_EVT_ONLINE: 525 if (phba->link_state < LPFC_LINK_DOWN) 526 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 527 else 528 *(int *) (evtp->evt_arg1) = 0; 529 complete((struct completion *)(evtp->evt_arg2)); 530 break; 531 case LPFC_EVT_OFFLINE_PREP: 532 if (phba->link_state >= LPFC_LINK_DOWN) 533 lpfc_offline_prep(phba); 534 *(int *)(evtp->evt_arg1) = 0; 535 complete((struct completion *)(evtp->evt_arg2)); 536 break; 537 case LPFC_EVT_OFFLINE: 538 lpfc_offline(phba); 539 lpfc_sli_brdrestart(phba); 540 *(int *)(evtp->evt_arg1) = 541 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 542 lpfc_unblock_mgmt_io(phba); 543 complete((struct completion *)(evtp->evt_arg2)); 544 break; 545 case LPFC_EVT_WARM_START: 546 lpfc_offline(phba); 547 lpfc_reset_barrier(phba); 548 lpfc_sli_brdreset(phba); 549 lpfc_hba_down_post(phba); 550 *(int *)(evtp->evt_arg1) = 551 lpfc_sli_brdready(phba, HS_MBRDY); 552 lpfc_unblock_mgmt_io(phba); 553 complete((struct completion *)(evtp->evt_arg2)); 554 break; 555 case LPFC_EVT_KILL: 556 lpfc_offline(phba); 557 *(int *)(evtp->evt_arg1) 558 = (phba->pport->stopped) 559 ? 0 : lpfc_sli_brdkill(phba); 560 lpfc_unblock_mgmt_io(phba); 561 complete((struct completion *)(evtp->evt_arg2)); 562 break; 563 case LPFC_EVT_FASTPATH_MGMT_EVT: 564 lpfc_send_fastpath_evt(phba, evtp); 565 free_evt = 0; 566 break; 567 case LPFC_EVT_RESET_HBA: 568 if (!(phba->pport->load_flag & FC_UNLOADING)) 569 lpfc_reset_hba(phba); 570 break; 571 } 572 if (free_evt) 573 kfree(evtp); 574 spin_lock_irq(&phba->hbalock); 575 } 576 spin_unlock_irq(&phba->hbalock); 577 578 } 579 580 static void 581 lpfc_work_done(struct lpfc_hba *phba) 582 { 583 struct lpfc_sli_ring *pring; 584 uint32_t ha_copy, status, control, work_port_events; 585 struct lpfc_vport **vports; 586 struct lpfc_vport *vport; 587 int i; 588 589 spin_lock_irq(&phba->hbalock); 590 ha_copy = phba->work_ha; 591 phba->work_ha = 0; 592 spin_unlock_irq(&phba->hbalock); 593 594 /* First, try to post the next mailbox command to SLI4 device */ 595 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 596 lpfc_sli4_post_async_mbox(phba); 597 598 if (ha_copy & HA_ERATT) 599 /* Handle the error attention event */ 600 lpfc_handle_eratt(phba); 601 602 if (ha_copy & HA_MBATT) 603 lpfc_sli_handle_mb_event(phba); 604 605 if (ha_copy & HA_LATT) 606 lpfc_handle_latt(phba); 607 608 /* Process SLI4 events */ 609 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 610 if (phba->hba_flag & HBA_RRQ_ACTIVE) 611 lpfc_handle_rrq_active(phba); 612 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 613 lpfc_sli4_fcp_xri_abort_event_proc(phba); 614 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 615 lpfc_sli4_els_xri_abort_event_proc(phba); 616 if (phba->hba_flag & ASYNC_EVENT) 617 lpfc_sli4_async_event_proc(phba); 618 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 619 spin_lock_irq(&phba->hbalock); 620 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 621 spin_unlock_irq(&phba->hbalock); 622 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 623 } 624 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 625 lpfc_sli4_fcf_redisc_event_proc(phba); 626 } 627 628 vports = lpfc_create_vport_work_array(phba); 629 if (vports != NULL) 630 for (i = 0; i <= phba->max_vports; i++) { 631 /* 632 * We could have no vports in array if unloading, so if 633 * this happens then just use the pport 634 */ 635 if (vports[i] == NULL && i == 0) 636 vport = phba->pport; 637 else 638 vport = vports[i]; 639 if (vport == NULL) 640 break; 641 spin_lock_irq(&vport->work_port_lock); 642 work_port_events = vport->work_port_events; 643 vport->work_port_events &= ~work_port_events; 644 spin_unlock_irq(&vport->work_port_lock); 645 if (work_port_events & WORKER_DISC_TMO) 646 lpfc_disc_timeout_handler(vport); 647 if (work_port_events & WORKER_ELS_TMO) 648 lpfc_els_timeout_handler(vport); 649 if (work_port_events & WORKER_HB_TMO) 650 lpfc_hb_timeout_handler(phba); 651 if (work_port_events & WORKER_MBOX_TMO) 652 lpfc_mbox_timeout_handler(phba); 653 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 654 lpfc_unblock_fabric_iocbs(phba); 655 if (work_port_events & WORKER_FDMI_TMO) 656 lpfc_fdmi_timeout_handler(vport); 657 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 658 lpfc_ramp_down_queue_handler(phba); 659 if (work_port_events & WORKER_RAMP_UP_QUEUE) 660 lpfc_ramp_up_queue_handler(phba); 661 if (work_port_events & WORKER_DELAYED_DISC_TMO) 662 lpfc_delayed_disc_timeout_handler(vport); 663 } 664 lpfc_destroy_vport_work_array(phba, vports); 665 666 pring = &phba->sli.ring[LPFC_ELS_RING]; 667 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 668 status >>= (4*LPFC_ELS_RING); 669 if ((status & HA_RXMASK) || 670 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 671 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 672 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 673 pring->flag |= LPFC_DEFERRED_RING_EVENT; 674 /* Set the lpfc data pending flag */ 675 set_bit(LPFC_DATA_READY, &phba->data_flags); 676 } else { 677 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 678 lpfc_sli_handle_slow_ring_event(phba, pring, 679 (status & 680 HA_RXMASK)); 681 } 682 if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt) 683 lpfc_drain_txq(phba); 684 /* 685 * Turn on Ring interrupts 686 */ 687 if (phba->sli_rev <= LPFC_SLI_REV3) { 688 spin_lock_irq(&phba->hbalock); 689 control = readl(phba->HCregaddr); 690 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 691 lpfc_debugfs_slow_ring_trc(phba, 692 "WRK Enable ring: cntl:x%x hacopy:x%x", 693 control, ha_copy, 0); 694 695 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 696 writel(control, phba->HCregaddr); 697 readl(phba->HCregaddr); /* flush */ 698 } else { 699 lpfc_debugfs_slow_ring_trc(phba, 700 "WRK Ring ok: cntl:x%x hacopy:x%x", 701 control, ha_copy, 0); 702 } 703 spin_unlock_irq(&phba->hbalock); 704 } 705 } 706 lpfc_work_list_done(phba); 707 } 708 709 int 710 lpfc_do_work(void *p) 711 { 712 struct lpfc_hba *phba = p; 713 int rc; 714 715 set_user_nice(current, -20); 716 phba->data_flags = 0; 717 718 while (!kthread_should_stop()) { 719 /* wait and check worker queue activities */ 720 rc = wait_event_interruptible(phba->work_waitq, 721 (test_and_clear_bit(LPFC_DATA_READY, 722 &phba->data_flags) 723 || kthread_should_stop())); 724 /* Signal wakeup shall terminate the worker thread */ 725 if (rc) { 726 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 727 "0433 Wakeup on signal: rc=x%x\n", rc); 728 break; 729 } 730 731 /* Attend pending lpfc data processing */ 732 lpfc_work_done(phba); 733 } 734 phba->worker_thread = NULL; 735 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 736 "0432 Worker thread stopped.\n"); 737 return 0; 738 } 739 740 /* 741 * This is only called to handle FC worker events. Since this a rare 742 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 743 * embedding it in the IOCB. 744 */ 745 int 746 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 747 uint32_t evt) 748 { 749 struct lpfc_work_evt *evtp; 750 unsigned long flags; 751 752 /* 753 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 754 * be queued to worker thread for processing 755 */ 756 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 757 if (!evtp) 758 return 0; 759 760 evtp->evt_arg1 = arg1; 761 evtp->evt_arg2 = arg2; 762 evtp->evt = evt; 763 764 spin_lock_irqsave(&phba->hbalock, flags); 765 list_add_tail(&evtp->evt_listp, &phba->work_list); 766 spin_unlock_irqrestore(&phba->hbalock, flags); 767 768 lpfc_worker_wake_up(phba); 769 770 return 1; 771 } 772 773 void 774 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 775 { 776 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 777 struct lpfc_hba *phba = vport->phba; 778 struct lpfc_nodelist *ndlp, *next_ndlp; 779 int rc; 780 781 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 782 if (!NLP_CHK_NODE_ACT(ndlp)) 783 continue; 784 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 785 continue; 786 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 787 ((vport->port_type == LPFC_NPIV_PORT) && 788 (ndlp->nlp_DID == NameServer_DID))) 789 lpfc_unreg_rpi(vport, ndlp); 790 791 /* Leave Fabric nodes alone on link down */ 792 if ((phba->sli_rev < LPFC_SLI_REV4) && 793 (!remove && ndlp->nlp_type & NLP_FABRIC)) 794 continue; 795 rc = lpfc_disc_state_machine(vport, ndlp, NULL, 796 remove 797 ? NLP_EVT_DEVICE_RM 798 : NLP_EVT_DEVICE_RECOVERY); 799 } 800 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 801 if (phba->sli_rev == LPFC_SLI_REV4) 802 lpfc_sli4_unreg_all_rpis(vport); 803 lpfc_mbx_unreg_vpi(vport); 804 spin_lock_irq(shost->host_lock); 805 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 806 spin_unlock_irq(shost->host_lock); 807 } 808 } 809 810 void 811 lpfc_port_link_failure(struct lpfc_vport *vport) 812 { 813 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 814 815 /* Cleanup any outstanding received buffers */ 816 lpfc_cleanup_rcv_buffers(vport); 817 818 /* Cleanup any outstanding RSCN activity */ 819 lpfc_els_flush_rscn(vport); 820 821 /* Cleanup any outstanding ELS commands */ 822 lpfc_els_flush_cmd(vport); 823 824 lpfc_cleanup_rpis(vport, 0); 825 826 /* Turn off discovery timer if its running */ 827 lpfc_can_disctmo(vport); 828 } 829 830 void 831 lpfc_linkdown_port(struct lpfc_vport *vport) 832 { 833 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 834 835 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 836 837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 838 "Link Down: state:x%x rtry:x%x flg:x%x", 839 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 840 841 lpfc_port_link_failure(vport); 842 843 /* Stop delayed Nport discovery */ 844 spin_lock_irq(shost->host_lock); 845 vport->fc_flag &= ~FC_DISC_DELAYED; 846 spin_unlock_irq(shost->host_lock); 847 del_timer_sync(&vport->delayed_disc_tmo); 848 } 849 850 int 851 lpfc_linkdown(struct lpfc_hba *phba) 852 { 853 struct lpfc_vport *vport = phba->pport; 854 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 855 struct lpfc_vport **vports; 856 LPFC_MBOXQ_t *mb; 857 int i; 858 859 if (phba->link_state == LPFC_LINK_DOWN) 860 return 0; 861 862 /* Block all SCSI stack I/Os */ 863 lpfc_scsi_dev_block(phba); 864 865 spin_lock_irq(&phba->hbalock); 866 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 867 spin_unlock_irq(&phba->hbalock); 868 if (phba->link_state > LPFC_LINK_DOWN) { 869 phba->link_state = LPFC_LINK_DOWN; 870 spin_lock_irq(shost->host_lock); 871 phba->pport->fc_flag &= ~FC_LBIT; 872 spin_unlock_irq(shost->host_lock); 873 } 874 vports = lpfc_create_vport_work_array(phba); 875 if (vports != NULL) 876 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 877 /* Issue a LINK DOWN event to all nodes */ 878 lpfc_linkdown_port(vports[i]); 879 } 880 lpfc_destroy_vport_work_array(phba, vports); 881 /* Clean up any firmware default rpi's */ 882 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 883 if (mb) { 884 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 885 mb->vport = vport; 886 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 887 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 888 == MBX_NOT_FINISHED) { 889 mempool_free(mb, phba->mbox_mem_pool); 890 } 891 } 892 893 /* Setup myDID for link up if we are in pt2pt mode */ 894 if (phba->pport->fc_flag & FC_PT2PT) { 895 phba->pport->fc_myDID = 0; 896 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 897 if (mb) { 898 lpfc_config_link(phba, mb); 899 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 900 mb->vport = vport; 901 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 902 == MBX_NOT_FINISHED) { 903 mempool_free(mb, phba->mbox_mem_pool); 904 } 905 } 906 spin_lock_irq(shost->host_lock); 907 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 908 spin_unlock_irq(shost->host_lock); 909 } 910 911 return 0; 912 } 913 914 static void 915 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 916 { 917 struct lpfc_nodelist *ndlp; 918 919 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 920 if (!NLP_CHK_NODE_ACT(ndlp)) 921 continue; 922 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 923 continue; 924 if (ndlp->nlp_type & NLP_FABRIC) { 925 /* On Linkup its safe to clean up the ndlp 926 * from Fabric connections. 927 */ 928 if (ndlp->nlp_DID != Fabric_DID) 929 lpfc_unreg_rpi(vport, ndlp); 930 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 931 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 932 /* Fail outstanding IO now since device is 933 * marked for PLOGI. 934 */ 935 lpfc_unreg_rpi(vport, ndlp); 936 } 937 } 938 } 939 940 static void 941 lpfc_linkup_port(struct lpfc_vport *vport) 942 { 943 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 944 struct lpfc_hba *phba = vport->phba; 945 946 if ((vport->load_flag & FC_UNLOADING) != 0) 947 return; 948 949 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 950 "Link Up: top:x%x speed:x%x flg:x%x", 951 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 952 953 /* If NPIV is not enabled, only bring the physical port up */ 954 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 955 (vport != phba->pport)) 956 return; 957 958 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 959 960 spin_lock_irq(shost->host_lock); 961 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 962 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 963 vport->fc_flag |= FC_NDISC_ACTIVE; 964 vport->fc_ns_retry = 0; 965 spin_unlock_irq(shost->host_lock); 966 967 if (vport->fc_flag & FC_LBIT) 968 lpfc_linkup_cleanup_nodes(vport); 969 970 } 971 972 static int 973 lpfc_linkup(struct lpfc_hba *phba) 974 { 975 struct lpfc_vport **vports; 976 int i; 977 978 lpfc_cleanup_wt_rrqs(phba); 979 phba->link_state = LPFC_LINK_UP; 980 981 /* Unblock fabric iocbs if they are blocked */ 982 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 983 del_timer_sync(&phba->fabric_block_timer); 984 985 vports = lpfc_create_vport_work_array(phba); 986 if (vports != NULL) 987 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 988 lpfc_linkup_port(vports[i]); 989 lpfc_destroy_vport_work_array(phba, vports); 990 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 991 (phba->sli_rev < LPFC_SLI_REV4)) 992 lpfc_issue_clear_la(phba, phba->pport); 993 994 return 0; 995 } 996 997 /* 998 * This routine handles processing a CLEAR_LA mailbox 999 * command upon completion. It is setup in the LPFC_MBOXQ 1000 * as the completion routine when the command is 1001 * handed off to the SLI layer. 1002 */ 1003 static void 1004 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1005 { 1006 struct lpfc_vport *vport = pmb->vport; 1007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1008 struct lpfc_sli *psli = &phba->sli; 1009 MAILBOX_t *mb = &pmb->u.mb; 1010 uint32_t control; 1011 1012 /* Since we don't do discovery right now, turn these off here */ 1013 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1014 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1015 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1016 1017 /* Check for error */ 1018 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1019 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1020 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1021 "0320 CLEAR_LA mbxStatus error x%x hba " 1022 "state x%x\n", 1023 mb->mbxStatus, vport->port_state); 1024 phba->link_state = LPFC_HBA_ERROR; 1025 goto out; 1026 } 1027 1028 if (vport->port_type == LPFC_PHYSICAL_PORT) 1029 phba->link_state = LPFC_HBA_READY; 1030 1031 spin_lock_irq(&phba->hbalock); 1032 psli->sli_flag |= LPFC_PROCESS_LA; 1033 control = readl(phba->HCregaddr); 1034 control |= HC_LAINT_ENA; 1035 writel(control, phba->HCregaddr); 1036 readl(phba->HCregaddr); /* flush */ 1037 spin_unlock_irq(&phba->hbalock); 1038 mempool_free(pmb, phba->mbox_mem_pool); 1039 return; 1040 1041 out: 1042 /* Device Discovery completes */ 1043 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1044 "0225 Device Discovery completes\n"); 1045 mempool_free(pmb, phba->mbox_mem_pool); 1046 1047 spin_lock_irq(shost->host_lock); 1048 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1049 spin_unlock_irq(shost->host_lock); 1050 1051 lpfc_can_disctmo(vport); 1052 1053 /* turn on Link Attention interrupts */ 1054 1055 spin_lock_irq(&phba->hbalock); 1056 psli->sli_flag |= LPFC_PROCESS_LA; 1057 control = readl(phba->HCregaddr); 1058 control |= HC_LAINT_ENA; 1059 writel(control, phba->HCregaddr); 1060 readl(phba->HCregaddr); /* flush */ 1061 spin_unlock_irq(&phba->hbalock); 1062 1063 return; 1064 } 1065 1066 1067 static void 1068 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1069 { 1070 struct lpfc_vport *vport = pmb->vport; 1071 1072 if (pmb->u.mb.mbxStatus) 1073 goto out; 1074 1075 mempool_free(pmb, phba->mbox_mem_pool); 1076 1077 /* don't perform discovery for SLI4 loopback diagnostic test */ 1078 if ((phba->sli_rev == LPFC_SLI_REV4) && 1079 !(phba->hba_flag & HBA_FCOE_MODE) && 1080 (phba->link_flag & LS_LOOPBACK_MODE)) 1081 return; 1082 1083 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1084 vport->fc_flag & FC_PUBLIC_LOOP && 1085 !(vport->fc_flag & FC_LBIT)) { 1086 /* Need to wait for FAN - use discovery timer 1087 * for timeout. port_state is identically 1088 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1089 */ 1090 lpfc_set_disctmo(vport); 1091 return; 1092 } 1093 1094 /* Start discovery by sending a FLOGI. port_state is identically 1095 * LPFC_FLOGI while waiting for FLOGI cmpl 1096 */ 1097 if (vport->port_state != LPFC_FLOGI) 1098 lpfc_initial_flogi(vport); 1099 return; 1100 1101 out: 1102 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1103 "0306 CONFIG_LINK mbxStatus error x%x " 1104 "HBA state x%x\n", 1105 pmb->u.mb.mbxStatus, vport->port_state); 1106 mempool_free(pmb, phba->mbox_mem_pool); 1107 1108 lpfc_linkdown(phba); 1109 1110 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1111 "0200 CONFIG_LINK bad hba state x%x\n", 1112 vport->port_state); 1113 1114 lpfc_issue_clear_la(phba, vport); 1115 return; 1116 } 1117 1118 /** 1119 * lpfc_sli4_clear_fcf_rr_bmask 1120 * @phba pointer to the struct lpfc_hba for this port. 1121 * This fucnction resets the round robin bit mask and clears the 1122 * fcf priority list. The list deletions are done while holding the 1123 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1124 * from the lpfc_fcf_pri record. 1125 **/ 1126 void 1127 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1128 { 1129 struct lpfc_fcf_pri *fcf_pri; 1130 struct lpfc_fcf_pri *next_fcf_pri; 1131 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1132 spin_lock_irq(&phba->hbalock); 1133 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1134 &phba->fcf.fcf_pri_list, list) { 1135 list_del_init(&fcf_pri->list); 1136 fcf_pri->fcf_rec.flag = 0; 1137 } 1138 spin_unlock_irq(&phba->hbalock); 1139 } 1140 static void 1141 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1142 { 1143 struct lpfc_vport *vport = mboxq->vport; 1144 1145 if (mboxq->u.mb.mbxStatus) { 1146 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1147 "2017 REG_FCFI mbxStatus error x%x " 1148 "HBA state x%x\n", 1149 mboxq->u.mb.mbxStatus, vport->port_state); 1150 goto fail_out; 1151 } 1152 1153 /* Start FCoE discovery by sending a FLOGI. */ 1154 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1155 /* Set the FCFI registered flag */ 1156 spin_lock_irq(&phba->hbalock); 1157 phba->fcf.fcf_flag |= FCF_REGISTERED; 1158 spin_unlock_irq(&phba->hbalock); 1159 1160 /* If there is a pending FCoE event, restart FCF table scan. */ 1161 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1162 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1163 goto fail_out; 1164 1165 /* Mark successful completion of FCF table scan */ 1166 spin_lock_irq(&phba->hbalock); 1167 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1168 phba->hba_flag &= ~FCF_TS_INPROG; 1169 if (vport->port_state != LPFC_FLOGI) { 1170 phba->hba_flag |= FCF_RR_INPROG; 1171 spin_unlock_irq(&phba->hbalock); 1172 lpfc_issue_init_vfi(vport); 1173 goto out; 1174 } 1175 spin_unlock_irq(&phba->hbalock); 1176 goto out; 1177 1178 fail_out: 1179 spin_lock_irq(&phba->hbalock); 1180 phba->hba_flag &= ~FCF_RR_INPROG; 1181 spin_unlock_irq(&phba->hbalock); 1182 out: 1183 mempool_free(mboxq, phba->mbox_mem_pool); 1184 } 1185 1186 /** 1187 * lpfc_fab_name_match - Check if the fcf fabric name match. 1188 * @fab_name: pointer to fabric name. 1189 * @new_fcf_record: pointer to fcf record. 1190 * 1191 * This routine compare the fcf record's fabric name with provided 1192 * fabric name. If the fabric name are identical this function 1193 * returns 1 else return 0. 1194 **/ 1195 static uint32_t 1196 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1197 { 1198 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1199 return 0; 1200 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1201 return 0; 1202 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1203 return 0; 1204 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1205 return 0; 1206 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1207 return 0; 1208 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1209 return 0; 1210 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1211 return 0; 1212 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1213 return 0; 1214 return 1; 1215 } 1216 1217 /** 1218 * lpfc_sw_name_match - Check if the fcf switch name match. 1219 * @fab_name: pointer to fabric name. 1220 * @new_fcf_record: pointer to fcf record. 1221 * 1222 * This routine compare the fcf record's switch name with provided 1223 * switch name. If the switch name are identical this function 1224 * returns 1 else return 0. 1225 **/ 1226 static uint32_t 1227 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1228 { 1229 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1230 return 0; 1231 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1232 return 0; 1233 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1234 return 0; 1235 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1236 return 0; 1237 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1238 return 0; 1239 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1240 return 0; 1241 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1242 return 0; 1243 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1244 return 0; 1245 return 1; 1246 } 1247 1248 /** 1249 * lpfc_mac_addr_match - Check if the fcf mac address match. 1250 * @mac_addr: pointer to mac address. 1251 * @new_fcf_record: pointer to fcf record. 1252 * 1253 * This routine compare the fcf record's mac address with HBA's 1254 * FCF mac address. If the mac addresses are identical this function 1255 * returns 1 else return 0. 1256 **/ 1257 static uint32_t 1258 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1259 { 1260 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1261 return 0; 1262 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1263 return 0; 1264 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1265 return 0; 1266 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1267 return 0; 1268 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1269 return 0; 1270 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1271 return 0; 1272 return 1; 1273 } 1274 1275 static bool 1276 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1277 { 1278 return (curr_vlan_id == new_vlan_id); 1279 } 1280 1281 /** 1282 * lpfc_update_fcf_record - Update driver fcf record 1283 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1284 * @phba: pointer to lpfc hba data structure. 1285 * @fcf_index: Index for the lpfc_fcf_record. 1286 * @new_fcf_record: pointer to hba fcf record. 1287 * 1288 * This routine updates the driver FCF priority record from the new HBA FCF 1289 * record. This routine is called with the host lock held. 1290 **/ 1291 static void 1292 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1293 struct fcf_record *new_fcf_record 1294 ) 1295 { 1296 struct lpfc_fcf_pri *fcf_pri; 1297 1298 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1299 fcf_pri->fcf_rec.fcf_index = fcf_index; 1300 /* FCF record priority */ 1301 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1302 1303 } 1304 1305 /** 1306 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1307 * @fcf: pointer to driver fcf record. 1308 * @new_fcf_record: pointer to fcf record. 1309 * 1310 * This routine copies the FCF information from the FCF 1311 * record to lpfc_hba data structure. 1312 **/ 1313 static void 1314 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1315 struct fcf_record *new_fcf_record) 1316 { 1317 /* Fabric name */ 1318 fcf_rec->fabric_name[0] = 1319 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1320 fcf_rec->fabric_name[1] = 1321 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1322 fcf_rec->fabric_name[2] = 1323 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1324 fcf_rec->fabric_name[3] = 1325 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1326 fcf_rec->fabric_name[4] = 1327 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1328 fcf_rec->fabric_name[5] = 1329 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1330 fcf_rec->fabric_name[6] = 1331 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1332 fcf_rec->fabric_name[7] = 1333 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1334 /* Mac address */ 1335 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1336 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1337 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1338 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1339 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1340 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1341 /* FCF record index */ 1342 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1343 /* FCF record priority */ 1344 fcf_rec->priority = new_fcf_record->fip_priority; 1345 /* Switch name */ 1346 fcf_rec->switch_name[0] = 1347 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1348 fcf_rec->switch_name[1] = 1349 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1350 fcf_rec->switch_name[2] = 1351 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1352 fcf_rec->switch_name[3] = 1353 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1354 fcf_rec->switch_name[4] = 1355 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1356 fcf_rec->switch_name[5] = 1357 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1358 fcf_rec->switch_name[6] = 1359 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1360 fcf_rec->switch_name[7] = 1361 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1362 } 1363 1364 /** 1365 * lpfc_update_fcf_record - Update driver fcf record 1366 * @phba: pointer to lpfc hba data structure. 1367 * @fcf_rec: pointer to driver fcf record. 1368 * @new_fcf_record: pointer to hba fcf record. 1369 * @addr_mode: address mode to be set to the driver fcf record. 1370 * @vlan_id: vlan tag to be set to the driver fcf record. 1371 * @flag: flag bits to be set to the driver fcf record. 1372 * 1373 * This routine updates the driver FCF record from the new HBA FCF record 1374 * together with the address mode, vlan_id, and other informations. This 1375 * routine is called with the host lock held. 1376 **/ 1377 static void 1378 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1379 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1380 uint16_t vlan_id, uint32_t flag) 1381 { 1382 /* Copy the fields from the HBA's FCF record */ 1383 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1384 /* Update other fields of driver FCF record */ 1385 fcf_rec->addr_mode = addr_mode; 1386 fcf_rec->vlan_id = vlan_id; 1387 fcf_rec->flag |= (flag | RECORD_VALID); 1388 __lpfc_update_fcf_record_pri(phba, 1389 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1390 new_fcf_record); 1391 } 1392 1393 /** 1394 * lpfc_register_fcf - Register the FCF with hba. 1395 * @phba: pointer to lpfc hba data structure. 1396 * 1397 * This routine issues a register fcfi mailbox command to register 1398 * the fcf with HBA. 1399 **/ 1400 static void 1401 lpfc_register_fcf(struct lpfc_hba *phba) 1402 { 1403 LPFC_MBOXQ_t *fcf_mbxq; 1404 int rc; 1405 1406 spin_lock_irq(&phba->hbalock); 1407 /* If the FCF is not available do nothing. */ 1408 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1409 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1410 spin_unlock_irq(&phba->hbalock); 1411 return; 1412 } 1413 1414 /* The FCF is already registered, start discovery */ 1415 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1416 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1417 phba->hba_flag &= ~FCF_TS_INPROG; 1418 if (phba->pport->port_state != LPFC_FLOGI) { 1419 phba->hba_flag |= FCF_RR_INPROG; 1420 spin_unlock_irq(&phba->hbalock); 1421 lpfc_initial_flogi(phba->pport); 1422 return; 1423 } 1424 spin_unlock_irq(&phba->hbalock); 1425 return; 1426 } 1427 spin_unlock_irq(&phba->hbalock); 1428 1429 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1430 if (!fcf_mbxq) { 1431 spin_lock_irq(&phba->hbalock); 1432 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1433 spin_unlock_irq(&phba->hbalock); 1434 return; 1435 } 1436 1437 lpfc_reg_fcfi(phba, fcf_mbxq); 1438 fcf_mbxq->vport = phba->pport; 1439 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1440 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1441 if (rc == MBX_NOT_FINISHED) { 1442 spin_lock_irq(&phba->hbalock); 1443 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1444 spin_unlock_irq(&phba->hbalock); 1445 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1446 } 1447 1448 return; 1449 } 1450 1451 /** 1452 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1453 * @phba: pointer to lpfc hba data structure. 1454 * @new_fcf_record: pointer to fcf record. 1455 * @boot_flag: Indicates if this record used by boot bios. 1456 * @addr_mode: The address mode to be used by this FCF 1457 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1458 * 1459 * This routine compare the fcf record with connect list obtained from the 1460 * config region to decide if this FCF can be used for SAN discovery. It returns 1461 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1462 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1463 * is used by boot bios and addr_mode will indicate the addressing mode to be 1464 * used for this FCF when the function returns. 1465 * If the FCF record need to be used with a particular vlan id, the vlan is 1466 * set in the vlan_id on return of the function. If not VLAN tagging need to 1467 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1468 **/ 1469 static int 1470 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1471 struct fcf_record *new_fcf_record, 1472 uint32_t *boot_flag, uint32_t *addr_mode, 1473 uint16_t *vlan_id) 1474 { 1475 struct lpfc_fcf_conn_entry *conn_entry; 1476 int i, j, fcf_vlan_id = 0; 1477 1478 /* Find the lowest VLAN id in the FCF record */ 1479 for (i = 0; i < 512; i++) { 1480 if (new_fcf_record->vlan_bitmap[i]) { 1481 fcf_vlan_id = i * 8; 1482 j = 0; 1483 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1484 j++; 1485 fcf_vlan_id++; 1486 } 1487 break; 1488 } 1489 } 1490 1491 /* If FCF not available return 0 */ 1492 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1493 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record)) 1494 return 0; 1495 1496 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1497 *boot_flag = 0; 1498 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1499 new_fcf_record); 1500 if (phba->valid_vlan) 1501 *vlan_id = phba->vlan_id; 1502 else 1503 *vlan_id = LPFC_FCOE_NULL_VID; 1504 return 1; 1505 } 1506 1507 /* 1508 * If there are no FCF connection table entry, driver connect to all 1509 * FCFs. 1510 */ 1511 if (list_empty(&phba->fcf_conn_rec_list)) { 1512 *boot_flag = 0; 1513 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1514 new_fcf_record); 1515 1516 /* 1517 * When there are no FCF connect entries, use driver's default 1518 * addressing mode - FPMA. 1519 */ 1520 if (*addr_mode & LPFC_FCF_FPMA) 1521 *addr_mode = LPFC_FCF_FPMA; 1522 1523 /* If FCF record report a vlan id use that vlan id */ 1524 if (fcf_vlan_id) 1525 *vlan_id = fcf_vlan_id; 1526 else 1527 *vlan_id = LPFC_FCOE_NULL_VID; 1528 return 1; 1529 } 1530 1531 list_for_each_entry(conn_entry, 1532 &phba->fcf_conn_rec_list, list) { 1533 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1534 continue; 1535 1536 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1537 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1538 new_fcf_record)) 1539 continue; 1540 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1541 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1542 new_fcf_record)) 1543 continue; 1544 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1545 /* 1546 * If the vlan bit map does not have the bit set for the 1547 * vlan id to be used, then it is not a match. 1548 */ 1549 if (!(new_fcf_record->vlan_bitmap 1550 [conn_entry->conn_rec.vlan_tag / 8] & 1551 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1552 continue; 1553 } 1554 1555 /* 1556 * If connection record does not support any addressing mode, 1557 * skip the FCF record. 1558 */ 1559 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1560 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1561 continue; 1562 1563 /* 1564 * Check if the connection record specifies a required 1565 * addressing mode. 1566 */ 1567 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1568 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1569 1570 /* 1571 * If SPMA required but FCF not support this continue. 1572 */ 1573 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1574 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1575 new_fcf_record) & LPFC_FCF_SPMA)) 1576 continue; 1577 1578 /* 1579 * If FPMA required but FCF not support this continue. 1580 */ 1581 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1582 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1583 new_fcf_record) & LPFC_FCF_FPMA)) 1584 continue; 1585 } 1586 1587 /* 1588 * This fcf record matches filtering criteria. 1589 */ 1590 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1591 *boot_flag = 1; 1592 else 1593 *boot_flag = 0; 1594 1595 /* 1596 * If user did not specify any addressing mode, or if the 1597 * preferred addressing mode specified by user is not supported 1598 * by FCF, allow fabric to pick the addressing mode. 1599 */ 1600 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1601 new_fcf_record); 1602 /* 1603 * If the user specified a required address mode, assign that 1604 * address mode 1605 */ 1606 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1607 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1608 *addr_mode = (conn_entry->conn_rec.flags & 1609 FCFCNCT_AM_SPMA) ? 1610 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1611 /* 1612 * If the user specified a preferred address mode, use the 1613 * addr mode only if FCF support the addr_mode. 1614 */ 1615 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1616 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1617 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1618 (*addr_mode & LPFC_FCF_SPMA)) 1619 *addr_mode = LPFC_FCF_SPMA; 1620 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1621 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1622 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1623 (*addr_mode & LPFC_FCF_FPMA)) 1624 *addr_mode = LPFC_FCF_FPMA; 1625 1626 /* If matching connect list has a vlan id, use it */ 1627 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1628 *vlan_id = conn_entry->conn_rec.vlan_tag; 1629 /* 1630 * If no vlan id is specified in connect list, use the vlan id 1631 * in the FCF record 1632 */ 1633 else if (fcf_vlan_id) 1634 *vlan_id = fcf_vlan_id; 1635 else 1636 *vlan_id = LPFC_FCOE_NULL_VID; 1637 1638 return 1; 1639 } 1640 1641 return 0; 1642 } 1643 1644 /** 1645 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1646 * @phba: pointer to lpfc hba data structure. 1647 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1648 * 1649 * This function check if there is any fcoe event pending while driver 1650 * scan FCF entries. If there is any pending event, it will restart the 1651 * FCF saning and return 1 else return 0. 1652 */ 1653 int 1654 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1655 { 1656 /* 1657 * If the Link is up and no FCoE events while in the 1658 * FCF discovery, no need to restart FCF discovery. 1659 */ 1660 if ((phba->link_state >= LPFC_LINK_UP) && 1661 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1662 return 0; 1663 1664 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1665 "2768 Pending link or FCF event during current " 1666 "handling of the previous event: link_state:x%x, " 1667 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1668 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1669 phba->fcoe_eventtag); 1670 1671 spin_lock_irq(&phba->hbalock); 1672 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1673 spin_unlock_irq(&phba->hbalock); 1674 1675 if (phba->link_state >= LPFC_LINK_UP) { 1676 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1677 "2780 Restart FCF table scan due to " 1678 "pending FCF event:evt_tag_at_scan:x%x, " 1679 "evt_tag_current:x%x\n", 1680 phba->fcoe_eventtag_at_fcf_scan, 1681 phba->fcoe_eventtag); 1682 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1683 } else { 1684 /* 1685 * Do not continue FCF discovery and clear FCF_TS_INPROG 1686 * flag 1687 */ 1688 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1689 "2833 Stop FCF discovery process due to link " 1690 "state change (x%x)\n", phba->link_state); 1691 spin_lock_irq(&phba->hbalock); 1692 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1693 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1694 spin_unlock_irq(&phba->hbalock); 1695 } 1696 1697 /* Unregister the currently registered FCF if required */ 1698 if (unreg_fcf) { 1699 spin_lock_irq(&phba->hbalock); 1700 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1701 spin_unlock_irq(&phba->hbalock); 1702 lpfc_sli4_unregister_fcf(phba); 1703 } 1704 return 1; 1705 } 1706 1707 /** 1708 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1709 * @phba: pointer to lpfc hba data structure. 1710 * @fcf_cnt: number of eligible fcf record seen so far. 1711 * 1712 * This function makes an running random selection decision on FCF record to 1713 * use through a sequence of @fcf_cnt eligible FCF records with equal 1714 * probability. To perform integer manunipulation of random numbers with 1715 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1716 * from random32() are taken as the random random number generated. 1717 * 1718 * Returns true when outcome is for the newly read FCF record should be 1719 * chosen; otherwise, return false when outcome is for keeping the previously 1720 * chosen FCF record. 1721 **/ 1722 static bool 1723 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1724 { 1725 uint32_t rand_num; 1726 1727 /* Get 16-bit uniform random number */ 1728 rand_num = (0xFFFF & random32()); 1729 1730 /* Decision with probability 1/fcf_cnt */ 1731 if ((fcf_cnt * rand_num) < 0xFFFF) 1732 return true; 1733 else 1734 return false; 1735 } 1736 1737 /** 1738 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1739 * @phba: pointer to lpfc hba data structure. 1740 * @mboxq: pointer to mailbox object. 1741 * @next_fcf_index: pointer to holder of next fcf index. 1742 * 1743 * This routine parses the non-embedded fcf mailbox command by performing the 1744 * necessarily error checking, non-embedded read FCF record mailbox command 1745 * SGE parsing, and endianness swapping. 1746 * 1747 * Returns the pointer to the new FCF record in the non-embedded mailbox 1748 * command DMA memory if successfully, other NULL. 1749 */ 1750 static struct fcf_record * 1751 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1752 uint16_t *next_fcf_index) 1753 { 1754 void *virt_addr; 1755 dma_addr_t phys_addr; 1756 struct lpfc_mbx_sge sge; 1757 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1758 uint32_t shdr_status, shdr_add_status; 1759 union lpfc_sli4_cfg_shdr *shdr; 1760 struct fcf_record *new_fcf_record; 1761 1762 /* Get the first SGE entry from the non-embedded DMA memory. This 1763 * routine only uses a single SGE. 1764 */ 1765 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1766 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); 1767 if (unlikely(!mboxq->sge_array)) { 1768 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1769 "2524 Failed to get the non-embedded SGE " 1770 "virtual address\n"); 1771 return NULL; 1772 } 1773 virt_addr = mboxq->sge_array->addr[0]; 1774 1775 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1776 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1777 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1778 if (shdr_status || shdr_add_status) { 1779 if (shdr_status == STATUS_FCF_TABLE_EMPTY) 1780 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1781 "2726 READ_FCF_RECORD Indicates empty " 1782 "FCF table.\n"); 1783 else 1784 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1785 "2521 READ_FCF_RECORD mailbox failed " 1786 "with status x%x add_status x%x, " 1787 "mbx\n", shdr_status, shdr_add_status); 1788 return NULL; 1789 } 1790 1791 /* Interpreting the returned information of the FCF record */ 1792 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1793 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1794 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1795 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1796 new_fcf_record = (struct fcf_record *)(virt_addr + 1797 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1798 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1799 offsetof(struct fcf_record, vlan_bitmap)); 1800 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1801 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1802 1803 return new_fcf_record; 1804 } 1805 1806 /** 1807 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1808 * @phba: pointer to lpfc hba data structure. 1809 * @fcf_record: pointer to the fcf record. 1810 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1811 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1812 * 1813 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1814 * enabled. 1815 **/ 1816 static void 1817 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1818 struct fcf_record *fcf_record, 1819 uint16_t vlan_id, 1820 uint16_t next_fcf_index) 1821 { 1822 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1823 "2764 READ_FCF_RECORD:\n" 1824 "\tFCF_Index : x%x\n" 1825 "\tFCF_Avail : x%x\n" 1826 "\tFCF_Valid : x%x\n" 1827 "\tFIP_Priority : x%x\n" 1828 "\tMAC_Provider : x%x\n" 1829 "\tLowest VLANID : x%x\n" 1830 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1831 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1832 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1833 "\tNext_FCF_Index: x%x\n", 1834 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1835 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1836 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1837 fcf_record->fip_priority, 1838 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1839 vlan_id, 1840 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1841 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1842 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1843 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1844 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1845 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1846 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1847 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1848 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1849 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1850 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1851 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1852 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1853 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1854 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1855 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1856 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1857 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1858 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1859 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1860 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1861 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1862 next_fcf_index); 1863 } 1864 1865 /** 1866 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1867 * @phba: pointer to lpfc hba data structure. 1868 * @fcf_rec: pointer to an existing FCF record. 1869 * @new_fcf_record: pointer to a new FCF record. 1870 * @new_vlan_id: vlan id from the new FCF record. 1871 * 1872 * This function performs matching test of a new FCF record against an existing 1873 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1874 * will not be used as part of the FCF record matching criteria. 1875 * 1876 * Returns true if all the fields matching, otherwise returns false. 1877 */ 1878 static bool 1879 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1880 struct lpfc_fcf_rec *fcf_rec, 1881 struct fcf_record *new_fcf_record, 1882 uint16_t new_vlan_id) 1883 { 1884 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1885 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1886 return false; 1887 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1888 return false; 1889 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1890 return false; 1891 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1892 return false; 1893 if (fcf_rec->priority != new_fcf_record->fip_priority) 1894 return false; 1895 return true; 1896 } 1897 1898 /** 1899 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1900 * @vport: Pointer to vport object. 1901 * @fcf_index: index to next fcf. 1902 * 1903 * This function processing the roundrobin fcf failover to next fcf index. 1904 * When this function is invoked, there will be a current fcf registered 1905 * for flogi. 1906 * Return: 0 for continue retrying flogi on currently registered fcf; 1907 * 1 for stop flogi on currently registered fcf; 1908 */ 1909 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1910 { 1911 struct lpfc_hba *phba = vport->phba; 1912 int rc; 1913 1914 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1915 spin_lock_irq(&phba->hbalock); 1916 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1917 spin_unlock_irq(&phba->hbalock); 1918 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1919 "2872 Devloss tmo with no eligible " 1920 "FCF, unregister in-use FCF (x%x) " 1921 "and rescan FCF table\n", 1922 phba->fcf.current_rec.fcf_indx); 1923 lpfc_unregister_fcf_rescan(phba); 1924 goto stop_flogi_current_fcf; 1925 } 1926 /* Mark the end to FLOGI roundrobin failover */ 1927 phba->hba_flag &= ~FCF_RR_INPROG; 1928 /* Allow action to new fcf asynchronous event */ 1929 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1930 spin_unlock_irq(&phba->hbalock); 1931 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1932 "2865 No FCF available, stop roundrobin FCF " 1933 "failover and change port state:x%x/x%x\n", 1934 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1935 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1936 goto stop_flogi_current_fcf; 1937 } else { 1938 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1939 "2794 Try FLOGI roundrobin FCF failover to " 1940 "(x%x)\n", fcf_index); 1941 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1942 if (rc) 1943 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1944 "2761 FLOGI roundrobin FCF failover " 1945 "failed (rc:x%x) to read FCF (x%x)\n", 1946 rc, phba->fcf.current_rec.fcf_indx); 1947 else 1948 goto stop_flogi_current_fcf; 1949 } 1950 return 0; 1951 1952 stop_flogi_current_fcf: 1953 lpfc_can_disctmo(vport); 1954 return 1; 1955 } 1956 1957 /** 1958 * lpfc_sli4_fcf_pri_list_del 1959 * @phba: pointer to lpfc hba data structure. 1960 * @fcf_index the index of the fcf record to delete 1961 * This routine checks the on list flag of the fcf_index to be deleted. 1962 * If it is one the list then it is removed from the list, and the flag 1963 * is cleared. This routine grab the hbalock before removing the fcf 1964 * record from the list. 1965 **/ 1966 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 1967 uint16_t fcf_index) 1968 { 1969 struct lpfc_fcf_pri *new_fcf_pri; 1970 1971 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1972 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1973 "3058 deleting idx x%x pri x%x flg x%x\n", 1974 fcf_index, new_fcf_pri->fcf_rec.priority, 1975 new_fcf_pri->fcf_rec.flag); 1976 spin_lock_irq(&phba->hbalock); 1977 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 1978 if (phba->fcf.current_rec.priority == 1979 new_fcf_pri->fcf_rec.priority) 1980 phba->fcf.eligible_fcf_cnt--; 1981 list_del_init(&new_fcf_pri->list); 1982 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 1983 } 1984 spin_unlock_irq(&phba->hbalock); 1985 } 1986 1987 /** 1988 * lpfc_sli4_set_fcf_flogi_fail 1989 * @phba: pointer to lpfc hba data structure. 1990 * @fcf_index the index of the fcf record to update 1991 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 1992 * flag so the the round robin slection for the particular priority level 1993 * will try a different fcf record that does not have this bit set. 1994 * If the fcf record is re-read for any reason this flag is cleared brfore 1995 * adding it to the priority list. 1996 **/ 1997 void 1998 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 1999 { 2000 struct lpfc_fcf_pri *new_fcf_pri; 2001 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2002 spin_lock_irq(&phba->hbalock); 2003 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2004 spin_unlock_irq(&phba->hbalock); 2005 } 2006 2007 /** 2008 * lpfc_sli4_fcf_pri_list_add 2009 * @phba: pointer to lpfc hba data structure. 2010 * @fcf_index the index of the fcf record to add 2011 * This routine checks the priority of the fcf_index to be added. 2012 * If it is a lower priority than the current head of the fcf_pri list 2013 * then it is added to the list in the right order. 2014 * If it is the same priority as the current head of the list then it 2015 * is added to the head of the list and its bit in the rr_bmask is set. 2016 * If the fcf_index to be added is of a higher priority than the current 2017 * head of the list then the rr_bmask is cleared, its bit is set in the 2018 * rr_bmask and it is added to the head of the list. 2019 * returns: 2020 * 0=success 1=failure 2021 **/ 2022 int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, uint16_t fcf_index, 2023 struct fcf_record *new_fcf_record) 2024 { 2025 uint16_t current_fcf_pri; 2026 uint16_t last_index; 2027 struct lpfc_fcf_pri *fcf_pri; 2028 struct lpfc_fcf_pri *next_fcf_pri; 2029 struct lpfc_fcf_pri *new_fcf_pri; 2030 int ret; 2031 2032 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2033 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2034 "3059 adding idx x%x pri x%x flg x%x\n", 2035 fcf_index, new_fcf_record->fip_priority, 2036 new_fcf_pri->fcf_rec.flag); 2037 spin_lock_irq(&phba->hbalock); 2038 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2039 list_del_init(&new_fcf_pri->list); 2040 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2041 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2042 if (list_empty(&phba->fcf.fcf_pri_list)) { 2043 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2044 ret = lpfc_sli4_fcf_rr_index_set(phba, 2045 new_fcf_pri->fcf_rec.fcf_index); 2046 goto out; 2047 } 2048 2049 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2050 LPFC_SLI4_FCF_TBL_INDX_MAX); 2051 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2052 ret = 0; /* Empty rr list */ 2053 goto out; 2054 } 2055 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2056 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2057 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2058 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2059 memset(phba->fcf.fcf_rr_bmask, 0, 2060 sizeof(*phba->fcf.fcf_rr_bmask)); 2061 /* fcfs_at_this_priority_level = 1; */ 2062 phba->fcf.eligible_fcf_cnt = 1; 2063 } else 2064 /* fcfs_at_this_priority_level++; */ 2065 phba->fcf.eligible_fcf_cnt++; 2066 ret = lpfc_sli4_fcf_rr_index_set(phba, 2067 new_fcf_pri->fcf_rec.fcf_index); 2068 goto out; 2069 } 2070 2071 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2072 &phba->fcf.fcf_pri_list, list) { 2073 if (new_fcf_pri->fcf_rec.priority <= 2074 fcf_pri->fcf_rec.priority) { 2075 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2076 list_add(&new_fcf_pri->list, 2077 &phba->fcf.fcf_pri_list); 2078 else 2079 list_add(&new_fcf_pri->list, 2080 &((struct lpfc_fcf_pri *) 2081 fcf_pri->list.prev)->list); 2082 ret = 0; 2083 goto out; 2084 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2085 || new_fcf_pri->fcf_rec.priority < 2086 next_fcf_pri->fcf_rec.priority) { 2087 list_add(&new_fcf_pri->list, &fcf_pri->list); 2088 ret = 0; 2089 goto out; 2090 } 2091 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2092 continue; 2093 2094 } 2095 ret = 1; 2096 out: 2097 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2098 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2099 spin_unlock_irq(&phba->hbalock); 2100 return ret; 2101 } 2102 2103 /** 2104 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2105 * @phba: pointer to lpfc hba data structure. 2106 * @mboxq: pointer to mailbox object. 2107 * 2108 * This function iterates through all the fcf records available in 2109 * HBA and chooses the optimal FCF record for discovery. After finding 2110 * the FCF for discovery it registers the FCF record and kicks start 2111 * discovery. 2112 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2113 * use an FCF record which matches fabric name and mac address of the 2114 * currently used FCF record. 2115 * If the driver supports only one FCF, it will try to use the FCF record 2116 * used by BOOT_BIOS. 2117 */ 2118 void 2119 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2120 { 2121 struct fcf_record *new_fcf_record; 2122 uint32_t boot_flag, addr_mode; 2123 uint16_t fcf_index, next_fcf_index; 2124 struct lpfc_fcf_rec *fcf_rec = NULL; 2125 uint16_t vlan_id; 2126 uint32_t seed; 2127 bool select_new_fcf; 2128 int rc; 2129 2130 /* If there is pending FCoE event restart FCF table scan */ 2131 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2132 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2133 return; 2134 } 2135 2136 /* Parse the FCF record from the non-embedded mailbox command */ 2137 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2138 &next_fcf_index); 2139 if (!new_fcf_record) { 2140 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2141 "2765 Mailbox command READ_FCF_RECORD " 2142 "failed to retrieve a FCF record.\n"); 2143 /* Let next new FCF event trigger fast failover */ 2144 spin_lock_irq(&phba->hbalock); 2145 phba->hba_flag &= ~FCF_TS_INPROG; 2146 spin_unlock_irq(&phba->hbalock); 2147 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2148 return; 2149 } 2150 2151 /* Check the FCF record against the connection list */ 2152 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2153 &addr_mode, &vlan_id); 2154 2155 /* Log the FCF record information if turned on */ 2156 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2157 next_fcf_index); 2158 2159 /* 2160 * If the fcf record does not match with connect list entries 2161 * read the next entry; otherwise, this is an eligible FCF 2162 * record for roundrobin FCF failover. 2163 */ 2164 if (!rc) { 2165 lpfc_sli4_fcf_pri_list_del(phba, 2166 bf_get(lpfc_fcf_record_fcf_index, 2167 new_fcf_record)); 2168 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2169 "2781 FCF (x%x) failed connection " 2170 "list check: (x%x/x%x)\n", 2171 bf_get(lpfc_fcf_record_fcf_index, 2172 new_fcf_record), 2173 bf_get(lpfc_fcf_record_fcf_avail, 2174 new_fcf_record), 2175 bf_get(lpfc_fcf_record_fcf_valid, 2176 new_fcf_record)); 2177 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2178 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2179 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2180 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2181 phba->fcf.current_rec.fcf_indx) { 2182 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2183 "2862 FCF (x%x) matches property " 2184 "of in-use FCF (x%x)\n", 2185 bf_get(lpfc_fcf_record_fcf_index, 2186 new_fcf_record), 2187 phba->fcf.current_rec.fcf_indx); 2188 goto read_next_fcf; 2189 } 2190 /* 2191 * In case the current in-use FCF record becomes 2192 * invalid/unavailable during FCF discovery that 2193 * was not triggered by fast FCF failover process, 2194 * treat it as fast FCF failover. 2195 */ 2196 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2197 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2198 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2199 "2835 Invalid in-use FCF " 2200 "(x%x), enter FCF failover " 2201 "table scan.\n", 2202 phba->fcf.current_rec.fcf_indx); 2203 spin_lock_irq(&phba->hbalock); 2204 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2205 spin_unlock_irq(&phba->hbalock); 2206 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2207 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2208 LPFC_FCOE_FCF_GET_FIRST); 2209 return; 2210 } 2211 } 2212 goto read_next_fcf; 2213 } else { 2214 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2215 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2216 new_fcf_record); 2217 if (rc) 2218 goto read_next_fcf; 2219 } 2220 2221 /* 2222 * If this is not the first FCF discovery of the HBA, use last 2223 * FCF record for the discovery. The condition that a rescan 2224 * matches the in-use FCF record: fabric name, switch name, mac 2225 * address, and vlan_id. 2226 */ 2227 spin_lock_irq(&phba->hbalock); 2228 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2229 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2230 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2231 new_fcf_record, vlan_id)) { 2232 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2233 phba->fcf.current_rec.fcf_indx) { 2234 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2235 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2236 /* Stop FCF redisc wait timer */ 2237 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2238 phba); 2239 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2240 /* Fast failover, mark completed */ 2241 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2242 spin_unlock_irq(&phba->hbalock); 2243 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2244 "2836 New FCF matches in-use " 2245 "FCF (x%x)\n", 2246 phba->fcf.current_rec.fcf_indx); 2247 goto out; 2248 } else 2249 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2250 "2863 New FCF (x%x) matches " 2251 "property of in-use FCF (x%x)\n", 2252 bf_get(lpfc_fcf_record_fcf_index, 2253 new_fcf_record), 2254 phba->fcf.current_rec.fcf_indx); 2255 } 2256 /* 2257 * Read next FCF record from HBA searching for the matching 2258 * with in-use record only if not during the fast failover 2259 * period. In case of fast failover period, it shall try to 2260 * determine whether the FCF record just read should be the 2261 * next candidate. 2262 */ 2263 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2264 spin_unlock_irq(&phba->hbalock); 2265 goto read_next_fcf; 2266 } 2267 } 2268 /* 2269 * Update on failover FCF record only if it's in FCF fast-failover 2270 * period; otherwise, update on current FCF record. 2271 */ 2272 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2273 fcf_rec = &phba->fcf.failover_rec; 2274 else 2275 fcf_rec = &phba->fcf.current_rec; 2276 2277 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2278 /* 2279 * If the driver FCF record does not have boot flag 2280 * set and new hba fcf record has boot flag set, use 2281 * the new hba fcf record. 2282 */ 2283 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2284 /* Choose this FCF record */ 2285 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2286 "2837 Update current FCF record " 2287 "(x%x) with new FCF record (x%x)\n", 2288 fcf_rec->fcf_indx, 2289 bf_get(lpfc_fcf_record_fcf_index, 2290 new_fcf_record)); 2291 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2292 addr_mode, vlan_id, BOOT_ENABLE); 2293 spin_unlock_irq(&phba->hbalock); 2294 goto read_next_fcf; 2295 } 2296 /* 2297 * If the driver FCF record has boot flag set and the 2298 * new hba FCF record does not have boot flag, read 2299 * the next FCF record. 2300 */ 2301 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2302 spin_unlock_irq(&phba->hbalock); 2303 goto read_next_fcf; 2304 } 2305 /* 2306 * If the new hba FCF record has lower priority value 2307 * than the driver FCF record, use the new record. 2308 */ 2309 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2310 /* Choose the new FCF record with lower priority */ 2311 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2312 "2838 Update current FCF record " 2313 "(x%x) with new FCF record (x%x)\n", 2314 fcf_rec->fcf_indx, 2315 bf_get(lpfc_fcf_record_fcf_index, 2316 new_fcf_record)); 2317 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2318 addr_mode, vlan_id, 0); 2319 /* Reset running random FCF selection count */ 2320 phba->fcf.eligible_fcf_cnt = 1; 2321 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2322 /* Update running random FCF selection count */ 2323 phba->fcf.eligible_fcf_cnt++; 2324 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2325 phba->fcf.eligible_fcf_cnt); 2326 if (select_new_fcf) { 2327 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2328 "2839 Update current FCF record " 2329 "(x%x) with new FCF record (x%x)\n", 2330 fcf_rec->fcf_indx, 2331 bf_get(lpfc_fcf_record_fcf_index, 2332 new_fcf_record)); 2333 /* Choose the new FCF by random selection */ 2334 __lpfc_update_fcf_record(phba, fcf_rec, 2335 new_fcf_record, 2336 addr_mode, vlan_id, 0); 2337 } 2338 } 2339 spin_unlock_irq(&phba->hbalock); 2340 goto read_next_fcf; 2341 } 2342 /* 2343 * This is the first suitable FCF record, choose this record for 2344 * initial best-fit FCF. 2345 */ 2346 if (fcf_rec) { 2347 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2348 "2840 Update initial FCF candidate " 2349 "with FCF (x%x)\n", 2350 bf_get(lpfc_fcf_record_fcf_index, 2351 new_fcf_record)); 2352 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2353 addr_mode, vlan_id, (boot_flag ? 2354 BOOT_ENABLE : 0)); 2355 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2356 /* Setup initial running random FCF selection count */ 2357 phba->fcf.eligible_fcf_cnt = 1; 2358 /* Seeding the random number generator for random selection */ 2359 seed = (uint32_t)(0xFFFFFFFF & jiffies); 2360 srandom32(seed); 2361 } 2362 spin_unlock_irq(&phba->hbalock); 2363 goto read_next_fcf; 2364 2365 read_next_fcf: 2366 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2367 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2368 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2369 /* 2370 * Case of FCF fast failover scan 2371 */ 2372 2373 /* 2374 * It has not found any suitable FCF record, cancel 2375 * FCF scan inprogress, and do nothing 2376 */ 2377 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2378 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2379 "2782 No suitable FCF found: " 2380 "(x%x/x%x)\n", 2381 phba->fcoe_eventtag_at_fcf_scan, 2382 bf_get(lpfc_fcf_record_fcf_index, 2383 new_fcf_record)); 2384 spin_lock_irq(&phba->hbalock); 2385 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2386 phba->hba_flag &= ~FCF_TS_INPROG; 2387 spin_unlock_irq(&phba->hbalock); 2388 /* Unregister in-use FCF and rescan */ 2389 lpfc_printf_log(phba, KERN_INFO, 2390 LOG_FIP, 2391 "2864 On devloss tmo " 2392 "unreg in-use FCF and " 2393 "rescan FCF table\n"); 2394 lpfc_unregister_fcf_rescan(phba); 2395 return; 2396 } 2397 /* 2398 * Let next new FCF event trigger fast failover 2399 */ 2400 phba->hba_flag &= ~FCF_TS_INPROG; 2401 spin_unlock_irq(&phba->hbalock); 2402 return; 2403 } 2404 /* 2405 * It has found a suitable FCF record that is not 2406 * the same as in-use FCF record, unregister the 2407 * in-use FCF record, replace the in-use FCF record 2408 * with the new FCF record, mark FCF fast failover 2409 * completed, and then start register the new FCF 2410 * record. 2411 */ 2412 2413 /* Unregister the current in-use FCF record */ 2414 lpfc_unregister_fcf(phba); 2415 2416 /* Replace in-use record with the new record */ 2417 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2418 "2842 Replace in-use FCF (x%x) " 2419 "with failover FCF (x%x)\n", 2420 phba->fcf.current_rec.fcf_indx, 2421 phba->fcf.failover_rec.fcf_indx); 2422 memcpy(&phba->fcf.current_rec, 2423 &phba->fcf.failover_rec, 2424 sizeof(struct lpfc_fcf_rec)); 2425 /* 2426 * Mark the fast FCF failover rediscovery completed 2427 * and the start of the first round of the roundrobin 2428 * FCF failover. 2429 */ 2430 spin_lock_irq(&phba->hbalock); 2431 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2432 spin_unlock_irq(&phba->hbalock); 2433 /* Register to the new FCF record */ 2434 lpfc_register_fcf(phba); 2435 } else { 2436 /* 2437 * In case of transaction period to fast FCF failover, 2438 * do nothing when search to the end of the FCF table. 2439 */ 2440 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2441 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2442 return; 2443 2444 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2445 phba->fcf.fcf_flag & FCF_IN_USE) { 2446 /* 2447 * In case the current in-use FCF record no 2448 * longer existed during FCF discovery that 2449 * was not triggered by fast FCF failover 2450 * process, treat it as fast FCF failover. 2451 */ 2452 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2453 "2841 In-use FCF record (x%x) " 2454 "not reported, entering fast " 2455 "FCF failover mode scanning.\n", 2456 phba->fcf.current_rec.fcf_indx); 2457 spin_lock_irq(&phba->hbalock); 2458 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2459 spin_unlock_irq(&phba->hbalock); 2460 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2461 LPFC_FCOE_FCF_GET_FIRST); 2462 return; 2463 } 2464 /* Register to the new FCF record */ 2465 lpfc_register_fcf(phba); 2466 } 2467 } else 2468 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2469 return; 2470 2471 out: 2472 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2473 lpfc_register_fcf(phba); 2474 2475 return; 2476 } 2477 2478 /** 2479 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2480 * @phba: pointer to lpfc hba data structure. 2481 * @mboxq: pointer to mailbox object. 2482 * 2483 * This is the callback function for FLOGI failure roundrobin FCF failover 2484 * read FCF record mailbox command from the eligible FCF record bmask for 2485 * performing the failover. If the FCF read back is not valid/available, it 2486 * fails through to retrying FLOGI to the currently registered FCF again. 2487 * Otherwise, if the FCF read back is valid and available, it will set the 2488 * newly read FCF record to the failover FCF record, unregister currently 2489 * registered FCF record, copy the failover FCF record to the current 2490 * FCF record, and then register the current FCF record before proceeding 2491 * to trying FLOGI on the new failover FCF. 2492 */ 2493 void 2494 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2495 { 2496 struct fcf_record *new_fcf_record; 2497 uint32_t boot_flag, addr_mode; 2498 uint16_t next_fcf_index, fcf_index; 2499 uint16_t current_fcf_index; 2500 uint16_t vlan_id; 2501 int rc; 2502 2503 /* If link state is not up, stop the roundrobin failover process */ 2504 if (phba->link_state < LPFC_LINK_UP) { 2505 spin_lock_irq(&phba->hbalock); 2506 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2507 phba->hba_flag &= ~FCF_RR_INPROG; 2508 spin_unlock_irq(&phba->hbalock); 2509 goto out; 2510 } 2511 2512 /* Parse the FCF record from the non-embedded mailbox command */ 2513 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2514 &next_fcf_index); 2515 if (!new_fcf_record) { 2516 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2517 "2766 Mailbox command READ_FCF_RECORD " 2518 "failed to retrieve a FCF record.\n"); 2519 goto error_out; 2520 } 2521 2522 /* Get the needed parameters from FCF record */ 2523 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2524 &addr_mode, &vlan_id); 2525 2526 /* Log the FCF record information if turned on */ 2527 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2528 next_fcf_index); 2529 2530 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2531 if (!rc) { 2532 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2533 "2848 Remove ineligible FCF (x%x) from " 2534 "from roundrobin bmask\n", fcf_index); 2535 /* Clear roundrobin bmask bit for ineligible FCF */ 2536 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2537 /* Perform next round of roundrobin FCF failover */ 2538 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2539 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2540 if (rc) 2541 goto out; 2542 goto error_out; 2543 } 2544 2545 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2546 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2547 "2760 Perform FLOGI roundrobin FCF failover: " 2548 "FCF (x%x) back to FCF (x%x)\n", 2549 phba->fcf.current_rec.fcf_indx, fcf_index); 2550 /* Wait 500 ms before retrying FLOGI to current FCF */ 2551 msleep(500); 2552 lpfc_issue_init_vfi(phba->pport); 2553 goto out; 2554 } 2555 2556 /* Upload new FCF record to the failover FCF record */ 2557 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2558 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2559 phba->fcf.failover_rec.fcf_indx, fcf_index); 2560 spin_lock_irq(&phba->hbalock); 2561 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2562 new_fcf_record, addr_mode, vlan_id, 2563 (boot_flag ? BOOT_ENABLE : 0)); 2564 spin_unlock_irq(&phba->hbalock); 2565 2566 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2567 2568 /* Unregister the current in-use FCF record */ 2569 lpfc_unregister_fcf(phba); 2570 2571 /* Replace in-use record with the new record */ 2572 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2573 sizeof(struct lpfc_fcf_rec)); 2574 2575 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2576 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2577 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2578 2579 error_out: 2580 lpfc_register_fcf(phba); 2581 out: 2582 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2583 } 2584 2585 /** 2586 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2587 * @phba: pointer to lpfc hba data structure. 2588 * @mboxq: pointer to mailbox object. 2589 * 2590 * This is the callback function of read FCF record mailbox command for 2591 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2592 * failover when a new FCF event happened. If the FCF read back is 2593 * valid/available and it passes the connection list check, it updates 2594 * the bmask for the eligible FCF record for roundrobin failover. 2595 */ 2596 void 2597 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2598 { 2599 struct fcf_record *new_fcf_record; 2600 uint32_t boot_flag, addr_mode; 2601 uint16_t fcf_index, next_fcf_index; 2602 uint16_t vlan_id; 2603 int rc; 2604 2605 /* If link state is not up, no need to proceed */ 2606 if (phba->link_state < LPFC_LINK_UP) 2607 goto out; 2608 2609 /* If FCF discovery period is over, no need to proceed */ 2610 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2611 goto out; 2612 2613 /* Parse the FCF record from the non-embedded mailbox command */ 2614 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2615 &next_fcf_index); 2616 if (!new_fcf_record) { 2617 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2618 "2767 Mailbox command READ_FCF_RECORD " 2619 "failed to retrieve a FCF record.\n"); 2620 goto out; 2621 } 2622 2623 /* Check the connection list for eligibility */ 2624 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2625 &addr_mode, &vlan_id); 2626 2627 /* Log the FCF record information if turned on */ 2628 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2629 next_fcf_index); 2630 2631 if (!rc) 2632 goto out; 2633 2634 /* Update the eligible FCF record index bmask */ 2635 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2636 2637 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2638 2639 out: 2640 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2641 } 2642 2643 /** 2644 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2645 * @phba: pointer to lpfc hba data structure. 2646 * @mboxq: pointer to mailbox data structure. 2647 * 2648 * This function handles completion of init vfi mailbox command. 2649 */ 2650 void 2651 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2652 { 2653 struct lpfc_vport *vport = mboxq->vport; 2654 2655 /* 2656 * VFI not supported on interface type 0, just do the flogi 2657 * Also continue if the VFI is in use - just use the same one. 2658 */ 2659 if (mboxq->u.mb.mbxStatus && 2660 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2661 LPFC_SLI_INTF_IF_TYPE_0) && 2662 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2663 lpfc_printf_vlog(vport, KERN_ERR, 2664 LOG_MBOX, 2665 "2891 Init VFI mailbox failed 0x%x\n", 2666 mboxq->u.mb.mbxStatus); 2667 mempool_free(mboxq, phba->mbox_mem_pool); 2668 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2669 return; 2670 } 2671 2672 lpfc_initial_flogi(vport); 2673 mempool_free(mboxq, phba->mbox_mem_pool); 2674 return; 2675 } 2676 2677 /** 2678 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2679 * @vport: pointer to lpfc_vport data structure. 2680 * 2681 * This function issue a init_vfi mailbox command to initialize the VFI and 2682 * VPI for the physical port. 2683 */ 2684 void 2685 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2686 { 2687 LPFC_MBOXQ_t *mboxq; 2688 int rc; 2689 struct lpfc_hba *phba = vport->phba; 2690 2691 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2692 if (!mboxq) { 2693 lpfc_printf_vlog(vport, KERN_ERR, 2694 LOG_MBOX, "2892 Failed to allocate " 2695 "init_vfi mailbox\n"); 2696 return; 2697 } 2698 lpfc_init_vfi(mboxq, vport); 2699 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2700 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2701 if (rc == MBX_NOT_FINISHED) { 2702 lpfc_printf_vlog(vport, KERN_ERR, 2703 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2704 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2705 } 2706 } 2707 2708 /** 2709 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2710 * @phba: pointer to lpfc hba data structure. 2711 * @mboxq: pointer to mailbox data structure. 2712 * 2713 * This function handles completion of init vpi mailbox command. 2714 */ 2715 void 2716 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2717 { 2718 struct lpfc_vport *vport = mboxq->vport; 2719 struct lpfc_nodelist *ndlp; 2720 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2721 2722 if (mboxq->u.mb.mbxStatus) { 2723 lpfc_printf_vlog(vport, KERN_ERR, 2724 LOG_MBOX, 2725 "2609 Init VPI mailbox failed 0x%x\n", 2726 mboxq->u.mb.mbxStatus); 2727 mempool_free(mboxq, phba->mbox_mem_pool); 2728 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2729 return; 2730 } 2731 spin_lock_irq(shost->host_lock); 2732 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2733 spin_unlock_irq(shost->host_lock); 2734 2735 /* If this port is physical port or FDISC is done, do reg_vpi */ 2736 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2737 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2738 if (!ndlp) 2739 lpfc_printf_vlog(vport, KERN_ERR, 2740 LOG_DISCOVERY, 2741 "2731 Cannot find fabric " 2742 "controller node\n"); 2743 else 2744 lpfc_register_new_vport(phba, vport, ndlp); 2745 mempool_free(mboxq, phba->mbox_mem_pool); 2746 return; 2747 } 2748 2749 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2750 lpfc_initial_fdisc(vport); 2751 else { 2752 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2753 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2754 "2606 No NPIV Fabric support\n"); 2755 } 2756 mempool_free(mboxq, phba->mbox_mem_pool); 2757 return; 2758 } 2759 2760 /** 2761 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2762 * @vport: pointer to lpfc_vport data structure. 2763 * 2764 * This function issue a init_vpi mailbox command to initialize 2765 * VPI for the vport. 2766 */ 2767 void 2768 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2769 { 2770 LPFC_MBOXQ_t *mboxq; 2771 int rc; 2772 2773 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2774 if (!mboxq) { 2775 lpfc_printf_vlog(vport, KERN_ERR, 2776 LOG_MBOX, "2607 Failed to allocate " 2777 "init_vpi mailbox\n"); 2778 return; 2779 } 2780 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2781 mboxq->vport = vport; 2782 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2783 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2784 if (rc == MBX_NOT_FINISHED) { 2785 lpfc_printf_vlog(vport, KERN_ERR, 2786 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2787 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2788 } 2789 } 2790 2791 /** 2792 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2793 * @phba: pointer to lpfc hba data structure. 2794 * 2795 * This function loops through the list of vports on the @phba and issues an 2796 * FDISC if possible. 2797 */ 2798 void 2799 lpfc_start_fdiscs(struct lpfc_hba *phba) 2800 { 2801 struct lpfc_vport **vports; 2802 int i; 2803 2804 vports = lpfc_create_vport_work_array(phba); 2805 if (vports != NULL) { 2806 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2807 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2808 continue; 2809 /* There are no vpi for this vport */ 2810 if (vports[i]->vpi > phba->max_vpi) { 2811 lpfc_vport_set_state(vports[i], 2812 FC_VPORT_FAILED); 2813 continue; 2814 } 2815 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2816 lpfc_vport_set_state(vports[i], 2817 FC_VPORT_LINKDOWN); 2818 continue; 2819 } 2820 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2821 lpfc_issue_init_vpi(vports[i]); 2822 continue; 2823 } 2824 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2825 lpfc_initial_fdisc(vports[i]); 2826 else { 2827 lpfc_vport_set_state(vports[i], 2828 FC_VPORT_NO_FABRIC_SUPP); 2829 lpfc_printf_vlog(vports[i], KERN_ERR, 2830 LOG_ELS, 2831 "0259 No NPIV " 2832 "Fabric support\n"); 2833 } 2834 } 2835 } 2836 lpfc_destroy_vport_work_array(phba, vports); 2837 } 2838 2839 void 2840 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2841 { 2842 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2843 struct lpfc_vport *vport = mboxq->vport; 2844 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2845 2846 if (mboxq->u.mb.mbxStatus) { 2847 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2848 "2018 REG_VFI mbxStatus error x%x " 2849 "HBA state x%x\n", 2850 mboxq->u.mb.mbxStatus, vport->port_state); 2851 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2852 /* FLOGI failed, use loop map to make discovery list */ 2853 lpfc_disc_list_loopmap(vport); 2854 /* Start discovery */ 2855 lpfc_disc_start(vport); 2856 goto out_free_mem; 2857 } 2858 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2859 goto out_free_mem; 2860 } 2861 /* The VPI is implicitly registered when the VFI is registered */ 2862 spin_lock_irq(shost->host_lock); 2863 vport->vpi_state |= LPFC_VPI_REGISTERED; 2864 vport->fc_flag |= FC_VFI_REGISTERED; 2865 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2866 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2867 spin_unlock_irq(shost->host_lock); 2868 2869 /* In case SLI4 FC loopback test, we are ready */ 2870 if ((phba->sli_rev == LPFC_SLI_REV4) && 2871 (phba->link_flag & LS_LOOPBACK_MODE)) { 2872 phba->link_state = LPFC_HBA_READY; 2873 goto out_free_mem; 2874 } 2875 2876 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2877 /* For private loop just start discovery and we are done. */ 2878 if ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2879 !(vport->fc_flag & FC_PUBLIC_LOOP)) { 2880 /* Use loop map to make discovery list */ 2881 lpfc_disc_list_loopmap(vport); 2882 /* Start discovery */ 2883 lpfc_disc_start(vport); 2884 } else { 2885 lpfc_start_fdiscs(phba); 2886 lpfc_do_scr_ns_plogi(phba, vport); 2887 } 2888 } 2889 2890 out_free_mem: 2891 mempool_free(mboxq, phba->mbox_mem_pool); 2892 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2893 kfree(dmabuf); 2894 return; 2895 } 2896 2897 static void 2898 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2899 { 2900 MAILBOX_t *mb = &pmb->u.mb; 2901 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 2902 struct lpfc_vport *vport = pmb->vport; 2903 2904 2905 /* Check for error */ 2906 if (mb->mbxStatus) { 2907 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 2908 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2909 "0319 READ_SPARAM mbxStatus error x%x " 2910 "hba state x%x>\n", 2911 mb->mbxStatus, vport->port_state); 2912 lpfc_linkdown(phba); 2913 goto out; 2914 } 2915 2916 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 2917 sizeof (struct serv_parm)); 2918 lpfc_update_vport_wwn(vport); 2919 if (vport->port_type == LPFC_PHYSICAL_PORT) { 2920 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 2921 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 2922 } 2923 2924 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2925 kfree(mp); 2926 mempool_free(pmb, phba->mbox_mem_pool); 2927 return; 2928 2929 out: 2930 pmb->context1 = NULL; 2931 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2932 kfree(mp); 2933 lpfc_issue_clear_la(phba, vport); 2934 mempool_free(pmb, phba->mbox_mem_pool); 2935 return; 2936 } 2937 2938 static void 2939 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 2940 { 2941 struct lpfc_vport *vport = phba->pport; 2942 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 2943 struct Scsi_Host *shost; 2944 int i; 2945 struct lpfc_dmabuf *mp; 2946 int rc; 2947 struct fcf_record *fcf_record; 2948 2949 spin_lock_irq(&phba->hbalock); 2950 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 2951 case LPFC_LINK_SPEED_1GHZ: 2952 case LPFC_LINK_SPEED_2GHZ: 2953 case LPFC_LINK_SPEED_4GHZ: 2954 case LPFC_LINK_SPEED_8GHZ: 2955 case LPFC_LINK_SPEED_10GHZ: 2956 case LPFC_LINK_SPEED_16GHZ: 2957 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 2958 break; 2959 default: 2960 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 2961 break; 2962 } 2963 2964 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 2965 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 2966 2967 shost = lpfc_shost_from_vport(vport); 2968 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2969 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 2970 2971 /* if npiv is enabled and this adapter supports npiv log 2972 * a message that npiv is not supported in this topology 2973 */ 2974 if (phba->cfg_enable_npiv && phba->max_vpi) 2975 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 2976 "1309 Link Up Event npiv not supported in loop " 2977 "topology\n"); 2978 /* Get Loop Map information */ 2979 if (bf_get(lpfc_mbx_read_top_il, la)) { 2980 spin_lock_irq(shost->host_lock); 2981 vport->fc_flag |= FC_LBIT; 2982 spin_unlock_irq(shost->host_lock); 2983 } 2984 2985 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 2986 i = la->lilpBde64.tus.f.bdeSize; 2987 2988 if (i == 0) { 2989 phba->alpa_map[0] = 0; 2990 } else { 2991 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 2992 int numalpa, j, k; 2993 union { 2994 uint8_t pamap[16]; 2995 struct { 2996 uint32_t wd1; 2997 uint32_t wd2; 2998 uint32_t wd3; 2999 uint32_t wd4; 3000 } pa; 3001 } un; 3002 numalpa = phba->alpa_map[0]; 3003 j = 0; 3004 while (j < numalpa) { 3005 memset(un.pamap, 0, 16); 3006 for (k = 1; j < numalpa; k++) { 3007 un.pamap[k - 1] = 3008 phba->alpa_map[j + 1]; 3009 j++; 3010 if (k == 16) 3011 break; 3012 } 3013 /* Link Up Event ALPA map */ 3014 lpfc_printf_log(phba, 3015 KERN_WARNING, 3016 LOG_LINK_EVENT, 3017 "1304 Link Up Event " 3018 "ALPA map Data: x%x " 3019 "x%x x%x x%x\n", 3020 un.pa.wd1, un.pa.wd2, 3021 un.pa.wd3, un.pa.wd4); 3022 } 3023 } 3024 } 3025 } else { 3026 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3027 if (phba->max_vpi && phba->cfg_enable_npiv && 3028 (phba->sli_rev >= LPFC_SLI_REV3)) 3029 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3030 } 3031 vport->fc_myDID = phba->fc_pref_DID; 3032 spin_lock_irq(shost->host_lock); 3033 vport->fc_flag |= FC_LBIT; 3034 spin_unlock_irq(shost->host_lock); 3035 } 3036 spin_unlock_irq(&phba->hbalock); 3037 3038 lpfc_linkup(phba); 3039 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3040 if (!sparam_mbox) 3041 goto out; 3042 3043 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3044 if (rc) { 3045 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3046 goto out; 3047 } 3048 sparam_mbox->vport = vport; 3049 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3050 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3051 if (rc == MBX_NOT_FINISHED) { 3052 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3053 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3054 kfree(mp); 3055 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3056 goto out; 3057 } 3058 3059 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3060 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3061 if (!cfglink_mbox) 3062 goto out; 3063 vport->port_state = LPFC_LOCAL_CFG_LINK; 3064 lpfc_config_link(phba, cfglink_mbox); 3065 cfglink_mbox->vport = vport; 3066 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3067 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3068 if (rc == MBX_NOT_FINISHED) { 3069 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3070 goto out; 3071 } 3072 } else { 3073 vport->port_state = LPFC_VPORT_UNKNOWN; 3074 /* 3075 * Add the driver's default FCF record at FCF index 0 now. This 3076 * is phase 1 implementation that support FCF index 0 and driver 3077 * defaults. 3078 */ 3079 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3080 fcf_record = kzalloc(sizeof(struct fcf_record), 3081 GFP_KERNEL); 3082 if (unlikely(!fcf_record)) { 3083 lpfc_printf_log(phba, KERN_ERR, 3084 LOG_MBOX | LOG_SLI, 3085 "2554 Could not allocate memory for " 3086 "fcf record\n"); 3087 rc = -ENODEV; 3088 goto out; 3089 } 3090 3091 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3092 LPFC_FCOE_FCF_DEF_INDEX); 3093 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3094 if (unlikely(rc)) { 3095 lpfc_printf_log(phba, KERN_ERR, 3096 LOG_MBOX | LOG_SLI, 3097 "2013 Could not manually add FCF " 3098 "record 0, status %d\n", rc); 3099 rc = -ENODEV; 3100 kfree(fcf_record); 3101 goto out; 3102 } 3103 kfree(fcf_record); 3104 } 3105 /* 3106 * The driver is expected to do FIP/FCF. Call the port 3107 * and get the FCF Table. 3108 */ 3109 spin_lock_irq(&phba->hbalock); 3110 if (phba->hba_flag & FCF_TS_INPROG) { 3111 spin_unlock_irq(&phba->hbalock); 3112 return; 3113 } 3114 /* This is the initial FCF discovery scan */ 3115 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3116 spin_unlock_irq(&phba->hbalock); 3117 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3118 "2778 Start FCF table scan at linkup\n"); 3119 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3120 LPFC_FCOE_FCF_GET_FIRST); 3121 if (rc) { 3122 spin_lock_irq(&phba->hbalock); 3123 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3124 spin_unlock_irq(&phba->hbalock); 3125 goto out; 3126 } 3127 /* Reset FCF roundrobin bmask for new discovery */ 3128 lpfc_sli4_clear_fcf_rr_bmask(phba); 3129 } 3130 3131 return; 3132 out: 3133 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3134 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3135 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3136 vport->port_state, sparam_mbox, cfglink_mbox); 3137 lpfc_issue_clear_la(phba, vport); 3138 return; 3139 } 3140 3141 static void 3142 lpfc_enable_la(struct lpfc_hba *phba) 3143 { 3144 uint32_t control; 3145 struct lpfc_sli *psli = &phba->sli; 3146 spin_lock_irq(&phba->hbalock); 3147 psli->sli_flag |= LPFC_PROCESS_LA; 3148 if (phba->sli_rev <= LPFC_SLI_REV3) { 3149 control = readl(phba->HCregaddr); 3150 control |= HC_LAINT_ENA; 3151 writel(control, phba->HCregaddr); 3152 readl(phba->HCregaddr); /* flush */ 3153 } 3154 spin_unlock_irq(&phba->hbalock); 3155 } 3156 3157 static void 3158 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3159 { 3160 lpfc_linkdown(phba); 3161 lpfc_enable_la(phba); 3162 lpfc_unregister_unused_fcf(phba); 3163 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3164 } 3165 3166 3167 /* 3168 * This routine handles processing a READ_TOPOLOGY mailbox 3169 * command upon completion. It is setup in the LPFC_MBOXQ 3170 * as the completion routine when the command is 3171 * handed off to the SLI layer. 3172 */ 3173 void 3174 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3175 { 3176 struct lpfc_vport *vport = pmb->vport; 3177 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3178 struct lpfc_mbx_read_top *la; 3179 MAILBOX_t *mb = &pmb->u.mb; 3180 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3181 3182 /* Unblock ELS traffic */ 3183 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 3184 /* Check for error */ 3185 if (mb->mbxStatus) { 3186 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3187 "1307 READ_LA mbox error x%x state x%x\n", 3188 mb->mbxStatus, vport->port_state); 3189 lpfc_mbx_issue_link_down(phba); 3190 phba->link_state = LPFC_HBA_ERROR; 3191 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3192 } 3193 3194 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3195 3196 memcpy(&phba->alpa_map[0], mp->virt, 128); 3197 3198 spin_lock_irq(shost->host_lock); 3199 if (bf_get(lpfc_mbx_read_top_pb, la)) 3200 vport->fc_flag |= FC_BYPASSED_MODE; 3201 else 3202 vport->fc_flag &= ~FC_BYPASSED_MODE; 3203 spin_unlock_irq(shost->host_lock); 3204 3205 if ((phba->fc_eventTag < la->eventTag) || 3206 (phba->fc_eventTag == la->eventTag)) { 3207 phba->fc_stat.LinkMultiEvent++; 3208 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3209 if (phba->fc_eventTag != 0) 3210 lpfc_linkdown(phba); 3211 } 3212 3213 phba->fc_eventTag = la->eventTag; 3214 spin_lock_irq(&phba->hbalock); 3215 if (bf_get(lpfc_mbx_read_top_mm, la)) 3216 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3217 else 3218 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3219 spin_unlock_irq(&phba->hbalock); 3220 3221 phba->link_events++; 3222 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3223 (!bf_get(lpfc_mbx_read_top_mm, la))) { 3224 phba->fc_stat.LinkUp++; 3225 if (phba->link_flag & LS_LOOPBACK_MODE) { 3226 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3227 "1306 Link Up Event in loop back mode " 3228 "x%x received Data: x%x x%x x%x x%x\n", 3229 la->eventTag, phba->fc_eventTag, 3230 bf_get(lpfc_mbx_read_top_alpa_granted, 3231 la), 3232 bf_get(lpfc_mbx_read_top_link_spd, la), 3233 phba->alpa_map[0]); 3234 } else { 3235 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3236 "1303 Link Up Event x%x received " 3237 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3238 la->eventTag, phba->fc_eventTag, 3239 bf_get(lpfc_mbx_read_top_alpa_granted, 3240 la), 3241 bf_get(lpfc_mbx_read_top_link_spd, la), 3242 phba->alpa_map[0], 3243 bf_get(lpfc_mbx_read_top_mm, la), 3244 bf_get(lpfc_mbx_read_top_fa, la), 3245 phba->wait_4_mlo_maint_flg); 3246 } 3247 lpfc_mbx_process_link_up(phba, la); 3248 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3249 LPFC_ATT_LINK_DOWN) { 3250 phba->fc_stat.LinkDown++; 3251 if (phba->link_flag & LS_LOOPBACK_MODE) 3252 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3253 "1308 Link Down Event in loop back mode " 3254 "x%x received " 3255 "Data: x%x x%x x%x\n", 3256 la->eventTag, phba->fc_eventTag, 3257 phba->pport->port_state, vport->fc_flag); 3258 else 3259 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3260 "1305 Link Down Event x%x received " 3261 "Data: x%x x%x x%x x%x x%x\n", 3262 la->eventTag, phba->fc_eventTag, 3263 phba->pport->port_state, vport->fc_flag, 3264 bf_get(lpfc_mbx_read_top_mm, la), 3265 bf_get(lpfc_mbx_read_top_fa, la)); 3266 lpfc_mbx_issue_link_down(phba); 3267 } 3268 if ((bf_get(lpfc_mbx_read_top_mm, la)) && 3269 (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)) { 3270 if (phba->link_state != LPFC_LINK_DOWN) { 3271 phba->fc_stat.LinkDown++; 3272 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3273 "1312 Link Down Event x%x received " 3274 "Data: x%x x%x x%x\n", 3275 la->eventTag, phba->fc_eventTag, 3276 phba->pport->port_state, vport->fc_flag); 3277 lpfc_mbx_issue_link_down(phba); 3278 } else 3279 lpfc_enable_la(phba); 3280 3281 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3282 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3283 "Data: x%x x%x x%x\n", 3284 la->eventTag, phba->fc_eventTag, 3285 phba->pport->port_state, vport->fc_flag); 3286 /* 3287 * The cmnd that triggered this will be waiting for this 3288 * signal. 3289 */ 3290 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3291 if (phba->wait_4_mlo_maint_flg) { 3292 phba->wait_4_mlo_maint_flg = 0; 3293 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3294 } 3295 } 3296 3297 if (bf_get(lpfc_mbx_read_top_fa, la)) { 3298 if (bf_get(lpfc_mbx_read_top_mm, la)) 3299 lpfc_issue_clear_la(phba, vport); 3300 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3301 "1311 fa %d\n", 3302 bf_get(lpfc_mbx_read_top_fa, la)); 3303 } 3304 3305 lpfc_mbx_cmpl_read_topology_free_mbuf: 3306 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3307 kfree(mp); 3308 mempool_free(pmb, phba->mbox_mem_pool); 3309 return; 3310 } 3311 3312 /* 3313 * This routine handles processing a REG_LOGIN mailbox 3314 * command upon completion. It is setup in the LPFC_MBOXQ 3315 * as the completion routine when the command is 3316 * handed off to the SLI layer. 3317 */ 3318 void 3319 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3320 { 3321 struct lpfc_vport *vport = pmb->vport; 3322 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3323 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3324 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3325 3326 pmb->context1 = NULL; 3327 pmb->context2 = NULL; 3328 3329 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3330 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3331 3332 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3333 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3334 /* We rcvd a rscn after issuing this 3335 * mbox reg login, we may have cycled 3336 * back through the state and be 3337 * back at reg login state so this 3338 * mbox needs to be ignored becase 3339 * there is another reg login in 3340 * process. 3341 */ 3342 spin_lock_irq(shost->host_lock); 3343 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3344 spin_unlock_irq(shost->host_lock); 3345 } else 3346 /* Good status, call state machine */ 3347 lpfc_disc_state_machine(vport, ndlp, pmb, 3348 NLP_EVT_CMPL_REG_LOGIN); 3349 3350 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3351 kfree(mp); 3352 mempool_free(pmb, phba->mbox_mem_pool); 3353 /* decrement the node reference count held for this callback 3354 * function. 3355 */ 3356 lpfc_nlp_put(ndlp); 3357 3358 return; 3359 } 3360 3361 static void 3362 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3363 { 3364 MAILBOX_t *mb = &pmb->u.mb; 3365 struct lpfc_vport *vport = pmb->vport; 3366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3367 3368 switch (mb->mbxStatus) { 3369 case 0x0011: 3370 case 0x0020: 3371 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3372 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3373 mb->mbxStatus); 3374 break; 3375 /* If VPI is busy, reset the HBA */ 3376 case 0x9700: 3377 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3378 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3379 vport->vpi, mb->mbxStatus); 3380 if (!(phba->pport->load_flag & FC_UNLOADING)) 3381 lpfc_workq_post_event(phba, NULL, NULL, 3382 LPFC_EVT_RESET_HBA); 3383 } 3384 spin_lock_irq(shost->host_lock); 3385 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3386 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3387 spin_unlock_irq(shost->host_lock); 3388 vport->unreg_vpi_cmpl = VPORT_OK; 3389 mempool_free(pmb, phba->mbox_mem_pool); 3390 lpfc_cleanup_vports_rrqs(vport, NULL); 3391 /* 3392 * This shost reference might have been taken at the beginning of 3393 * lpfc_vport_delete() 3394 */ 3395 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3396 scsi_host_put(shost); 3397 } 3398 3399 int 3400 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3401 { 3402 struct lpfc_hba *phba = vport->phba; 3403 LPFC_MBOXQ_t *mbox; 3404 int rc; 3405 3406 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3407 if (!mbox) 3408 return 1; 3409 3410 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3411 mbox->vport = vport; 3412 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3413 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3414 if (rc == MBX_NOT_FINISHED) { 3415 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3416 "1800 Could not issue unreg_vpi\n"); 3417 mempool_free(mbox, phba->mbox_mem_pool); 3418 vport->unreg_vpi_cmpl = VPORT_ERROR; 3419 return rc; 3420 } 3421 return 0; 3422 } 3423 3424 static void 3425 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3426 { 3427 struct lpfc_vport *vport = pmb->vport; 3428 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3429 MAILBOX_t *mb = &pmb->u.mb; 3430 3431 switch (mb->mbxStatus) { 3432 case 0x0011: 3433 case 0x9601: 3434 case 0x9602: 3435 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3436 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3437 mb->mbxStatus); 3438 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3439 spin_lock_irq(shost->host_lock); 3440 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3441 spin_unlock_irq(shost->host_lock); 3442 vport->fc_myDID = 0; 3443 goto out; 3444 } 3445 3446 spin_lock_irq(shost->host_lock); 3447 vport->vpi_state |= LPFC_VPI_REGISTERED; 3448 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3449 spin_unlock_irq(shost->host_lock); 3450 vport->num_disc_nodes = 0; 3451 /* go thru NPR list and issue ELS PLOGIs */ 3452 if (vport->fc_npr_cnt) 3453 lpfc_els_disc_plogi(vport); 3454 3455 if (!vport->num_disc_nodes) { 3456 spin_lock_irq(shost->host_lock); 3457 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3458 spin_unlock_irq(shost->host_lock); 3459 lpfc_can_disctmo(vport); 3460 } 3461 vport->port_state = LPFC_VPORT_READY; 3462 3463 out: 3464 mempool_free(pmb, phba->mbox_mem_pool); 3465 return; 3466 } 3467 3468 /** 3469 * lpfc_create_static_vport - Read HBA config region to create static vports. 3470 * @phba: pointer to lpfc hba data structure. 3471 * 3472 * This routine issue a DUMP mailbox command for config region 22 to get 3473 * the list of static vports to be created. The function create vports 3474 * based on the information returned from the HBA. 3475 **/ 3476 void 3477 lpfc_create_static_vport(struct lpfc_hba *phba) 3478 { 3479 LPFC_MBOXQ_t *pmb = NULL; 3480 MAILBOX_t *mb; 3481 struct static_vport_info *vport_info; 3482 int rc = 0, i; 3483 struct fc_vport_identifiers vport_id; 3484 struct fc_vport *new_fc_vport; 3485 struct Scsi_Host *shost; 3486 struct lpfc_vport *vport; 3487 uint16_t offset = 0; 3488 uint8_t *vport_buff; 3489 struct lpfc_dmabuf *mp; 3490 uint32_t byte_count = 0; 3491 3492 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3493 if (!pmb) { 3494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3495 "0542 lpfc_create_static_vport failed to" 3496 " allocate mailbox memory\n"); 3497 return; 3498 } 3499 3500 mb = &pmb->u.mb; 3501 3502 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3503 if (!vport_info) { 3504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3505 "0543 lpfc_create_static_vport failed to" 3506 " allocate vport_info\n"); 3507 mempool_free(pmb, phba->mbox_mem_pool); 3508 return; 3509 } 3510 3511 vport_buff = (uint8_t *) vport_info; 3512 do { 3513 if (lpfc_dump_static_vport(phba, pmb, offset)) 3514 goto out; 3515 3516 pmb->vport = phba->pport; 3517 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO); 3518 3519 if ((rc != MBX_SUCCESS) || mb->mbxStatus) { 3520 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3521 "0544 lpfc_create_static_vport failed to" 3522 " issue dump mailbox command ret 0x%x " 3523 "status 0x%x\n", 3524 rc, mb->mbxStatus); 3525 goto out; 3526 } 3527 3528 if (phba->sli_rev == LPFC_SLI_REV4) { 3529 byte_count = pmb->u.mqe.un.mb_words[5]; 3530 mp = (struct lpfc_dmabuf *) pmb->context2; 3531 if (byte_count > sizeof(struct static_vport_info) - 3532 offset) 3533 byte_count = sizeof(struct static_vport_info) 3534 - offset; 3535 memcpy(vport_buff + offset, mp->virt, byte_count); 3536 offset += byte_count; 3537 } else { 3538 if (mb->un.varDmp.word_cnt > 3539 sizeof(struct static_vport_info) - offset) 3540 mb->un.varDmp.word_cnt = 3541 sizeof(struct static_vport_info) 3542 - offset; 3543 byte_count = mb->un.varDmp.word_cnt; 3544 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3545 vport_buff + offset, 3546 byte_count); 3547 3548 offset += byte_count; 3549 } 3550 3551 } while (byte_count && 3552 offset < sizeof(struct static_vport_info)); 3553 3554 3555 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3556 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3557 != VPORT_INFO_REV)) { 3558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3559 "0545 lpfc_create_static_vport bad" 3560 " information header 0x%x 0x%x\n", 3561 le32_to_cpu(vport_info->signature), 3562 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3563 3564 goto out; 3565 } 3566 3567 shost = lpfc_shost_from_vport(phba->pport); 3568 3569 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3570 memset(&vport_id, 0, sizeof(vport_id)); 3571 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3572 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3573 if (!vport_id.port_name || !vport_id.node_name) 3574 continue; 3575 3576 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3577 vport_id.vport_type = FC_PORTTYPE_NPIV; 3578 vport_id.disable = false; 3579 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3580 3581 if (!new_fc_vport) { 3582 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3583 "0546 lpfc_create_static_vport failed to" 3584 " create vport\n"); 3585 continue; 3586 } 3587 3588 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3589 vport->vport_flag |= STATIC_VPORT; 3590 } 3591 3592 out: 3593 kfree(vport_info); 3594 if (rc != MBX_TIMEOUT) { 3595 if (pmb->context2) { 3596 mp = (struct lpfc_dmabuf *) pmb->context2; 3597 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3598 kfree(mp); 3599 } 3600 mempool_free(pmb, phba->mbox_mem_pool); 3601 } 3602 3603 return; 3604 } 3605 3606 /* 3607 * This routine handles processing a Fabric REG_LOGIN mailbox 3608 * command upon completion. It is setup in the LPFC_MBOXQ 3609 * as the completion routine when the command is 3610 * handed off to the SLI layer. 3611 */ 3612 void 3613 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3614 { 3615 struct lpfc_vport *vport = pmb->vport; 3616 MAILBOX_t *mb = &pmb->u.mb; 3617 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3618 struct lpfc_nodelist *ndlp; 3619 struct Scsi_Host *shost; 3620 3621 ndlp = (struct lpfc_nodelist *) pmb->context2; 3622 pmb->context1 = NULL; 3623 pmb->context2 = NULL; 3624 3625 if (mb->mbxStatus) { 3626 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3627 "0258 Register Fabric login error: 0x%x\n", 3628 mb->mbxStatus); 3629 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3630 kfree(mp); 3631 mempool_free(pmb, phba->mbox_mem_pool); 3632 3633 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3634 /* FLOGI failed, use loop map to make discovery list */ 3635 lpfc_disc_list_loopmap(vport); 3636 3637 /* Start discovery */ 3638 lpfc_disc_start(vport); 3639 /* Decrement the reference count to ndlp after the 3640 * reference to the ndlp are done. 3641 */ 3642 lpfc_nlp_put(ndlp); 3643 return; 3644 } 3645 3646 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3647 /* Decrement the reference count to ndlp after the reference 3648 * to the ndlp are done. 3649 */ 3650 lpfc_nlp_put(ndlp); 3651 return; 3652 } 3653 3654 if (phba->sli_rev < LPFC_SLI_REV4) 3655 ndlp->nlp_rpi = mb->un.varWords[0]; 3656 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3657 ndlp->nlp_type |= NLP_FABRIC; 3658 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3659 3660 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3661 /* when physical port receive logo donot start 3662 * vport discovery */ 3663 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3664 lpfc_start_fdiscs(phba); 3665 else { 3666 shost = lpfc_shost_from_vport(vport); 3667 spin_lock_irq(shost->host_lock); 3668 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3669 spin_unlock_irq(shost->host_lock); 3670 } 3671 lpfc_do_scr_ns_plogi(phba, vport); 3672 } 3673 3674 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3675 kfree(mp); 3676 mempool_free(pmb, phba->mbox_mem_pool); 3677 3678 /* Drop the reference count from the mbox at the end after 3679 * all the current reference to the ndlp have been done. 3680 */ 3681 lpfc_nlp_put(ndlp); 3682 return; 3683 } 3684 3685 /* 3686 * This routine handles processing a NameServer REG_LOGIN mailbox 3687 * command upon completion. It is setup in the LPFC_MBOXQ 3688 * as the completion routine when the command is 3689 * handed off to the SLI layer. 3690 */ 3691 void 3692 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3693 { 3694 MAILBOX_t *mb = &pmb->u.mb; 3695 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3696 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3697 struct lpfc_vport *vport = pmb->vport; 3698 3699 pmb->context1 = NULL; 3700 pmb->context2 = NULL; 3701 3702 if (mb->mbxStatus) { 3703 out: 3704 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3705 "0260 Register NameServer error: 0x%x\n", 3706 mb->mbxStatus); 3707 /* decrement the node reference count held for this 3708 * callback function. 3709 */ 3710 lpfc_nlp_put(ndlp); 3711 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3712 kfree(mp); 3713 mempool_free(pmb, phba->mbox_mem_pool); 3714 3715 /* If no other thread is using the ndlp, free it */ 3716 lpfc_nlp_not_used(ndlp); 3717 3718 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3719 /* 3720 * RegLogin failed, use loop map to make discovery 3721 * list 3722 */ 3723 lpfc_disc_list_loopmap(vport); 3724 3725 /* Start discovery */ 3726 lpfc_disc_start(vport); 3727 return; 3728 } 3729 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3730 return; 3731 } 3732 3733 if (phba->sli_rev < LPFC_SLI_REV4) 3734 ndlp->nlp_rpi = mb->un.varWords[0]; 3735 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3736 ndlp->nlp_type |= NLP_FABRIC; 3737 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3738 3739 if (vport->port_state < LPFC_VPORT_READY) { 3740 /* Link up discovery requires Fabric registration. */ 3741 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */ 3742 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3743 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3744 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3745 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3746 3747 /* Issue SCR just before NameServer GID_FT Query */ 3748 lpfc_issue_els_scr(vport, SCR_DID, 0); 3749 } 3750 3751 vport->fc_ns_retry = 0; 3752 /* Good status, issue CT Request to NameServer */ 3753 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 3754 /* Cannot issue NameServer Query, so finish up discovery */ 3755 goto out; 3756 } 3757 3758 /* decrement the node reference count held for this 3759 * callback function. 3760 */ 3761 lpfc_nlp_put(ndlp); 3762 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3763 kfree(mp); 3764 mempool_free(pmb, phba->mbox_mem_pool); 3765 3766 return; 3767 } 3768 3769 static void 3770 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3771 { 3772 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3773 struct fc_rport *rport; 3774 struct lpfc_rport_data *rdata; 3775 struct fc_rport_identifiers rport_ids; 3776 struct lpfc_hba *phba = vport->phba; 3777 3778 /* Remote port has reappeared. Re-register w/ FC transport */ 3779 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 3780 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 3781 rport_ids.port_id = ndlp->nlp_DID; 3782 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 3783 3784 /* 3785 * We leave our node pointer in rport->dd_data when we unregister a 3786 * FCP target port. But fc_remote_port_add zeros the space to which 3787 * rport->dd_data points. So, if we're reusing a previously 3788 * registered port, drop the reference that we took the last time we 3789 * registered the port. 3790 */ 3791 if (ndlp->rport && ndlp->rport->dd_data && 3792 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) 3793 lpfc_nlp_put(ndlp); 3794 3795 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 3796 "rport add: did:x%x flg:x%x type x%x", 3797 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3798 3799 /* Don't add the remote port if unloading. */ 3800 if (vport->load_flag & FC_UNLOADING) 3801 return; 3802 3803 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 3804 if (!rport || !get_device(&rport->dev)) { 3805 dev_printk(KERN_WARNING, &phba->pcidev->dev, 3806 "Warning: fc_remote_port_add failed\n"); 3807 return; 3808 } 3809 3810 /* initialize static port data */ 3811 rport->maxframe_size = ndlp->nlp_maxframe; 3812 rport->supported_classes = ndlp->nlp_class_sup; 3813 rdata = rport->dd_data; 3814 rdata->pnode = lpfc_nlp_get(ndlp); 3815 3816 if (ndlp->nlp_type & NLP_FCP_TARGET) 3817 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 3818 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 3819 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 3820 3821 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 3822 fc_remote_port_rolechg(rport, rport_ids.roles); 3823 3824 if ((rport->scsi_target_id != -1) && 3825 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 3826 ndlp->nlp_sid = rport->scsi_target_id; 3827 } 3828 return; 3829 } 3830 3831 static void 3832 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 3833 { 3834 struct fc_rport *rport = ndlp->rport; 3835 3836 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 3837 "rport delete: did:x%x flg:x%x type x%x", 3838 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3839 3840 fc_remote_port_delete(rport); 3841 3842 return; 3843 } 3844 3845 static void 3846 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 3847 { 3848 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3849 3850 spin_lock_irq(shost->host_lock); 3851 switch (state) { 3852 case NLP_STE_UNUSED_NODE: 3853 vport->fc_unused_cnt += count; 3854 break; 3855 case NLP_STE_PLOGI_ISSUE: 3856 vport->fc_plogi_cnt += count; 3857 break; 3858 case NLP_STE_ADISC_ISSUE: 3859 vport->fc_adisc_cnt += count; 3860 break; 3861 case NLP_STE_REG_LOGIN_ISSUE: 3862 vport->fc_reglogin_cnt += count; 3863 break; 3864 case NLP_STE_PRLI_ISSUE: 3865 vport->fc_prli_cnt += count; 3866 break; 3867 case NLP_STE_UNMAPPED_NODE: 3868 vport->fc_unmap_cnt += count; 3869 break; 3870 case NLP_STE_MAPPED_NODE: 3871 vport->fc_map_cnt += count; 3872 break; 3873 case NLP_STE_NPR_NODE: 3874 vport->fc_npr_cnt += count; 3875 break; 3876 } 3877 spin_unlock_irq(shost->host_lock); 3878 } 3879 3880 static void 3881 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3882 int old_state, int new_state) 3883 { 3884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3885 3886 if (new_state == NLP_STE_UNMAPPED_NODE) { 3887 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 3888 ndlp->nlp_type |= NLP_FC_NODE; 3889 } 3890 if (new_state == NLP_STE_MAPPED_NODE) 3891 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 3892 if (new_state == NLP_STE_NPR_NODE) 3893 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 3894 3895 /* Transport interface */ 3896 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 3897 old_state == NLP_STE_UNMAPPED_NODE)) { 3898 vport->phba->nport_event_cnt++; 3899 lpfc_unregister_remote_port(ndlp); 3900 } 3901 3902 if (new_state == NLP_STE_MAPPED_NODE || 3903 new_state == NLP_STE_UNMAPPED_NODE) { 3904 vport->phba->nport_event_cnt++; 3905 /* 3906 * Tell the fc transport about the port, if we haven't 3907 * already. If we have, and it's a scsi entity, be 3908 * sure to unblock any attached scsi devices 3909 */ 3910 lpfc_register_remote_port(vport, ndlp); 3911 } 3912 if ((new_state == NLP_STE_MAPPED_NODE) && 3913 (vport->stat_data_enabled)) { 3914 /* 3915 * A new target is discovered, if there is no buffer for 3916 * statistical data collection allocate buffer. 3917 */ 3918 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 3919 sizeof(struct lpfc_scsicmd_bkt), 3920 GFP_KERNEL); 3921 3922 if (!ndlp->lat_data) 3923 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3924 "0286 lpfc_nlp_state_cleanup failed to " 3925 "allocate statistical data buffer DID " 3926 "0x%x\n", ndlp->nlp_DID); 3927 } 3928 /* 3929 * if we added to Mapped list, but the remote port 3930 * registration failed or assigned a target id outside 3931 * our presentable range - move the node to the 3932 * Unmapped List 3933 */ 3934 if (new_state == NLP_STE_MAPPED_NODE && 3935 (!ndlp->rport || 3936 ndlp->rport->scsi_target_id == -1 || 3937 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 3938 spin_lock_irq(shost->host_lock); 3939 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 3940 spin_unlock_irq(shost->host_lock); 3941 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3942 } 3943 } 3944 3945 static char * 3946 lpfc_nlp_state_name(char *buffer, size_t size, int state) 3947 { 3948 static char *states[] = { 3949 [NLP_STE_UNUSED_NODE] = "UNUSED", 3950 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 3951 [NLP_STE_ADISC_ISSUE] = "ADISC", 3952 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 3953 [NLP_STE_PRLI_ISSUE] = "PRLI", 3954 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 3955 [NLP_STE_MAPPED_NODE] = "MAPPED", 3956 [NLP_STE_NPR_NODE] = "NPR", 3957 }; 3958 3959 if (state < NLP_STE_MAX_STATE && states[state]) 3960 strlcpy(buffer, states[state], size); 3961 else 3962 snprintf(buffer, size, "unknown (%d)", state); 3963 return buffer; 3964 } 3965 3966 void 3967 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3968 int state) 3969 { 3970 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3971 int old_state = ndlp->nlp_state; 3972 char name1[16], name2[16]; 3973 3974 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3975 "0904 NPort state transition x%06x, %s -> %s\n", 3976 ndlp->nlp_DID, 3977 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 3978 lpfc_nlp_state_name(name2, sizeof(name2), state)); 3979 3980 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 3981 "node statechg did:x%x old:%d ste:%d", 3982 ndlp->nlp_DID, old_state, state); 3983 3984 if (old_state == NLP_STE_NPR_NODE && 3985 state != NLP_STE_NPR_NODE) 3986 lpfc_cancel_retry_delay_tmo(vport, ndlp); 3987 if (old_state == NLP_STE_UNMAPPED_NODE) { 3988 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 3989 ndlp->nlp_type &= ~NLP_FC_NODE; 3990 } 3991 3992 if (list_empty(&ndlp->nlp_listp)) { 3993 spin_lock_irq(shost->host_lock); 3994 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 3995 spin_unlock_irq(shost->host_lock); 3996 } else if (old_state) 3997 lpfc_nlp_counters(vport, old_state, -1); 3998 3999 ndlp->nlp_state = state; 4000 lpfc_nlp_counters(vport, state, 1); 4001 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4002 } 4003 4004 void 4005 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4006 { 4007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4008 4009 if (list_empty(&ndlp->nlp_listp)) { 4010 spin_lock_irq(shost->host_lock); 4011 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4012 spin_unlock_irq(shost->host_lock); 4013 } 4014 } 4015 4016 void 4017 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4018 { 4019 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4020 4021 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4022 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4023 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4024 spin_lock_irq(shost->host_lock); 4025 list_del_init(&ndlp->nlp_listp); 4026 spin_unlock_irq(shost->host_lock); 4027 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4028 NLP_STE_UNUSED_NODE); 4029 } 4030 4031 static void 4032 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4033 { 4034 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4035 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4036 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4037 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4038 NLP_STE_UNUSED_NODE); 4039 } 4040 /** 4041 * lpfc_initialize_node - Initialize all fields of node object 4042 * @vport: Pointer to Virtual Port object. 4043 * @ndlp: Pointer to FC node object. 4044 * @did: FC_ID of the node. 4045 * 4046 * This function is always called when node object need to be initialized. 4047 * It initializes all the fields of the node object. Although the reference 4048 * to phba from @ndlp can be obtained indirectly through it's reference to 4049 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4050 * to the life-span of the @ndlp might go beyond the existence of @vport as 4051 * the final release of ndlp is determined by its reference count. And, the 4052 * operation on @ndlp needs the reference to phba. 4053 **/ 4054 static inline void 4055 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4056 uint32_t did) 4057 { 4058 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4059 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4060 init_timer(&ndlp->nlp_delayfunc); 4061 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 4062 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 4063 ndlp->nlp_DID = did; 4064 ndlp->vport = vport; 4065 ndlp->phba = vport->phba; 4066 ndlp->nlp_sid = NLP_NO_SID; 4067 kref_init(&ndlp->kref); 4068 NLP_INT_NODE_ACT(ndlp); 4069 atomic_set(&ndlp->cmd_pending, 0); 4070 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4071 if (vport->phba->sli_rev == LPFC_SLI_REV4) 4072 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4073 } 4074 4075 struct lpfc_nodelist * 4076 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4077 int state) 4078 { 4079 struct lpfc_hba *phba = vport->phba; 4080 uint32_t did; 4081 unsigned long flags; 4082 4083 if (!ndlp) 4084 return NULL; 4085 4086 spin_lock_irqsave(&phba->ndlp_lock, flags); 4087 /* The ndlp should not be in memory free mode */ 4088 if (NLP_CHK_FREE_REQ(ndlp)) { 4089 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4090 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4091 "0277 lpfc_enable_node: ndlp:x%p " 4092 "usgmap:x%x refcnt:%d\n", 4093 (void *)ndlp, ndlp->nlp_usg_map, 4094 atomic_read(&ndlp->kref.refcount)); 4095 return NULL; 4096 } 4097 /* The ndlp should not already be in active mode */ 4098 if (NLP_CHK_NODE_ACT(ndlp)) { 4099 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4100 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4101 "0278 lpfc_enable_node: ndlp:x%p " 4102 "usgmap:x%x refcnt:%d\n", 4103 (void *)ndlp, ndlp->nlp_usg_map, 4104 atomic_read(&ndlp->kref.refcount)); 4105 return NULL; 4106 } 4107 4108 /* Keep the original DID */ 4109 did = ndlp->nlp_DID; 4110 4111 /* re-initialize ndlp except of ndlp linked list pointer */ 4112 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4113 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4114 lpfc_initialize_node(vport, ndlp, did); 4115 4116 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4117 4118 if (state != NLP_STE_UNUSED_NODE) 4119 lpfc_nlp_set_state(vport, ndlp, state); 4120 4121 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4122 "node enable: did:x%x", 4123 ndlp->nlp_DID, 0, 0); 4124 return ndlp; 4125 } 4126 4127 void 4128 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4129 { 4130 /* 4131 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4132 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4133 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4134 * until ALL other outstanding threads have completed. We check 4135 * that the ndlp not already in the UNUSED state before we proceed. 4136 */ 4137 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4138 return; 4139 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4140 if (vport->phba->sli_rev == LPFC_SLI_REV4) 4141 lpfc_cleanup_vports_rrqs(vport, ndlp); 4142 lpfc_nlp_put(ndlp); 4143 return; 4144 } 4145 4146 /* 4147 * Start / ReStart rescue timer for Discovery / RSCN handling 4148 */ 4149 void 4150 lpfc_set_disctmo(struct lpfc_vport *vport) 4151 { 4152 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4153 struct lpfc_hba *phba = vport->phba; 4154 uint32_t tmo; 4155 4156 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4157 /* For FAN, timeout should be greater than edtov */ 4158 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4159 } else { 4160 /* Normal discovery timeout should be > than ELS/CT timeout 4161 * FC spec states we need 3 * ratov for CT requests 4162 */ 4163 tmo = ((phba->fc_ratov * 3) + 3); 4164 } 4165 4166 4167 if (!timer_pending(&vport->fc_disctmo)) { 4168 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4169 "set disc timer: tmo:x%x state:x%x flg:x%x", 4170 tmo, vport->port_state, vport->fc_flag); 4171 } 4172 4173 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo); 4174 spin_lock_irq(shost->host_lock); 4175 vport->fc_flag |= FC_DISC_TMO; 4176 spin_unlock_irq(shost->host_lock); 4177 4178 /* Start Discovery Timer state <hba_state> */ 4179 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4180 "0247 Start Discovery Timer state x%x " 4181 "Data: x%x x%lx x%x x%x\n", 4182 vport->port_state, tmo, 4183 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4184 vport->fc_adisc_cnt); 4185 4186 return; 4187 } 4188 4189 /* 4190 * Cancel rescue timer for Discovery / RSCN handling 4191 */ 4192 int 4193 lpfc_can_disctmo(struct lpfc_vport *vport) 4194 { 4195 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4196 unsigned long iflags; 4197 4198 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4199 "can disc timer: state:x%x rtry:x%x flg:x%x", 4200 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4201 4202 /* Turn off discovery timer if its running */ 4203 if (vport->fc_flag & FC_DISC_TMO) { 4204 spin_lock_irqsave(shost->host_lock, iflags); 4205 vport->fc_flag &= ~FC_DISC_TMO; 4206 spin_unlock_irqrestore(shost->host_lock, iflags); 4207 del_timer_sync(&vport->fc_disctmo); 4208 spin_lock_irqsave(&vport->work_port_lock, iflags); 4209 vport->work_port_events &= ~WORKER_DISC_TMO; 4210 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4211 } 4212 4213 /* Cancel Discovery Timer state <hba_state> */ 4214 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4215 "0248 Cancel Discovery Timer state x%x " 4216 "Data: x%x x%x x%x\n", 4217 vport->port_state, vport->fc_flag, 4218 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4219 return 0; 4220 } 4221 4222 /* 4223 * Check specified ring for outstanding IOCB on the SLI queue 4224 * Return true if iocb matches the specified nport 4225 */ 4226 int 4227 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4228 struct lpfc_sli_ring *pring, 4229 struct lpfc_iocbq *iocb, 4230 struct lpfc_nodelist *ndlp) 4231 { 4232 struct lpfc_sli *psli = &phba->sli; 4233 IOCB_t *icmd = &iocb->iocb; 4234 struct lpfc_vport *vport = ndlp->vport; 4235 4236 if (iocb->vport != vport) 4237 return 0; 4238 4239 if (pring->ringno == LPFC_ELS_RING) { 4240 switch (icmd->ulpCommand) { 4241 case CMD_GEN_REQUEST64_CR: 4242 if (iocb->context_un.ndlp == ndlp) 4243 return 1; 4244 case CMD_ELS_REQUEST64_CR: 4245 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4246 return 1; 4247 case CMD_XMIT_ELS_RSP64_CX: 4248 if (iocb->context1 == (uint8_t *) ndlp) 4249 return 1; 4250 } 4251 } else if (pring->ringno == psli->extra_ring) { 4252 4253 } else if (pring->ringno == psli->fcp_ring) { 4254 /* Skip match check if waiting to relogin to FCP target */ 4255 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4256 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4257 return 0; 4258 } 4259 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4260 return 1; 4261 } 4262 } else if (pring->ringno == psli->next_ring) { 4263 4264 } 4265 return 0; 4266 } 4267 4268 /* 4269 * Free resources / clean up outstanding I/Os 4270 * associated with nlp_rpi in the LPFC_NODELIST entry. 4271 */ 4272 static int 4273 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4274 { 4275 LIST_HEAD(completions); 4276 struct lpfc_sli *psli; 4277 struct lpfc_sli_ring *pring; 4278 struct lpfc_iocbq *iocb, *next_iocb; 4279 uint32_t i; 4280 4281 lpfc_fabric_abort_nport(ndlp); 4282 4283 /* 4284 * Everything that matches on txcmplq will be returned 4285 * by firmware with a no rpi error. 4286 */ 4287 psli = &phba->sli; 4288 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4289 /* Now process each ring */ 4290 for (i = 0; i < psli->num_rings; i++) { 4291 pring = &psli->ring[i]; 4292 4293 spin_lock_irq(&phba->hbalock); 4294 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 4295 list) { 4296 /* 4297 * Check to see if iocb matches the nport we are 4298 * looking for 4299 */ 4300 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 4301 ndlp))) { 4302 /* It matches, so deque and call compl 4303 with an error */ 4304 list_move_tail(&iocb->list, 4305 &completions); 4306 pring->txq_cnt--; 4307 } 4308 } 4309 spin_unlock_irq(&phba->hbalock); 4310 } 4311 } 4312 4313 /* Cancel all the IOCBs from the completions list */ 4314 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4315 IOERR_SLI_ABORTED); 4316 4317 return 0; 4318 } 4319 4320 /* 4321 * Free rpi associated with LPFC_NODELIST entry. 4322 * This routine is called from lpfc_freenode(), when we are removing 4323 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4324 * LOGO that completes successfully, and we are waiting to PLOGI back 4325 * to the remote NPort. In addition, it is called after we receive 4326 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4327 * we are waiting to PLOGI back to the remote NPort. 4328 */ 4329 int 4330 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4331 { 4332 struct lpfc_hba *phba = vport->phba; 4333 LPFC_MBOXQ_t *mbox; 4334 int rc; 4335 uint16_t rpi; 4336 4337 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4338 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4339 if (mbox) { 4340 /* SLI4 ports require the physical rpi value. */ 4341 rpi = ndlp->nlp_rpi; 4342 if (phba->sli_rev == LPFC_SLI_REV4) 4343 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4344 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4345 mbox->vport = vport; 4346 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4347 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4348 if (rc == MBX_NOT_FINISHED) 4349 mempool_free(mbox, phba->mbox_mem_pool); 4350 } 4351 lpfc_no_rpi(phba, ndlp); 4352 4353 if (phba->sli_rev != LPFC_SLI_REV4) 4354 ndlp->nlp_rpi = 0; 4355 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4356 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4357 return 1; 4358 } 4359 return 0; 4360 } 4361 4362 /** 4363 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4364 * @phba: pointer to lpfc hba data structure. 4365 * 4366 * This routine is invoked to unregister all the currently registered RPIs 4367 * to the HBA. 4368 **/ 4369 void 4370 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4371 { 4372 struct lpfc_vport **vports; 4373 struct lpfc_nodelist *ndlp; 4374 struct Scsi_Host *shost; 4375 int i; 4376 4377 vports = lpfc_create_vport_work_array(phba); 4378 if (!vports) { 4379 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4380 "2884 Vport array allocation failed \n"); 4381 return; 4382 } 4383 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4384 shost = lpfc_shost_from_vport(vports[i]); 4385 spin_lock_irq(shost->host_lock); 4386 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4387 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4388 /* The mempool_alloc might sleep */ 4389 spin_unlock_irq(shost->host_lock); 4390 lpfc_unreg_rpi(vports[i], ndlp); 4391 spin_lock_irq(shost->host_lock); 4392 } 4393 } 4394 spin_unlock_irq(shost->host_lock); 4395 } 4396 lpfc_destroy_vport_work_array(phba, vports); 4397 } 4398 4399 void 4400 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4401 { 4402 struct lpfc_hba *phba = vport->phba; 4403 LPFC_MBOXQ_t *mbox; 4404 int rc; 4405 4406 if (phba->sli_rev == LPFC_SLI_REV4) { 4407 lpfc_sli4_unreg_all_rpis(vport); 4408 return; 4409 } 4410 4411 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4412 if (mbox) { 4413 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4414 mbox); 4415 mbox->vport = vport; 4416 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4417 mbox->context1 = NULL; 4418 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4419 if (rc != MBX_TIMEOUT) 4420 mempool_free(mbox, phba->mbox_mem_pool); 4421 4422 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4423 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4424 "1836 Could not issue " 4425 "unreg_login(all_rpis) status %d\n", rc); 4426 } 4427 } 4428 4429 void 4430 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4431 { 4432 struct lpfc_hba *phba = vport->phba; 4433 LPFC_MBOXQ_t *mbox; 4434 int rc; 4435 4436 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4437 if (mbox) { 4438 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4439 mbox); 4440 mbox->vport = vport; 4441 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4442 mbox->context1 = NULL; 4443 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4444 if (rc != MBX_TIMEOUT) 4445 mempool_free(mbox, phba->mbox_mem_pool); 4446 4447 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4448 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4449 "1815 Could not issue " 4450 "unreg_did (default rpis) status %d\n", 4451 rc); 4452 } 4453 } 4454 4455 /* 4456 * Free resources associated with LPFC_NODELIST entry 4457 * so it can be freed. 4458 */ 4459 static int 4460 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4461 { 4462 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4463 struct lpfc_hba *phba = vport->phba; 4464 LPFC_MBOXQ_t *mb, *nextmb; 4465 struct lpfc_dmabuf *mp; 4466 4467 /* Cleanup node for NPort <nlp_DID> */ 4468 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4469 "0900 Cleanup node for NPort x%x " 4470 "Data: x%x x%x x%x\n", 4471 ndlp->nlp_DID, ndlp->nlp_flag, 4472 ndlp->nlp_state, ndlp->nlp_rpi); 4473 if (NLP_CHK_FREE_REQ(ndlp)) { 4474 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4475 "0280 lpfc_cleanup_node: ndlp:x%p " 4476 "usgmap:x%x refcnt:%d\n", 4477 (void *)ndlp, ndlp->nlp_usg_map, 4478 atomic_read(&ndlp->kref.refcount)); 4479 lpfc_dequeue_node(vport, ndlp); 4480 } else { 4481 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4482 "0281 lpfc_cleanup_node: ndlp:x%p " 4483 "usgmap:x%x refcnt:%d\n", 4484 (void *)ndlp, ndlp->nlp_usg_map, 4485 atomic_read(&ndlp->kref.refcount)); 4486 lpfc_disable_node(vport, ndlp); 4487 } 4488 4489 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4490 if ((mb = phba->sli.mbox_active)) { 4491 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4492 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4493 mb->context2 = NULL; 4494 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4495 } 4496 } 4497 4498 spin_lock_irq(&phba->hbalock); 4499 /* Cleanup REG_LOGIN completions which are not yet processed */ 4500 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4501 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4502 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4503 continue; 4504 4505 mb->context2 = NULL; 4506 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4507 } 4508 4509 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4510 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4511 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4512 mp = (struct lpfc_dmabuf *) (mb->context1); 4513 if (mp) { 4514 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4515 kfree(mp); 4516 } 4517 list_del(&mb->list); 4518 mempool_free(mb, phba->mbox_mem_pool); 4519 /* We shall not invoke the lpfc_nlp_put to decrement 4520 * the ndlp reference count as we are in the process 4521 * of lpfc_nlp_release. 4522 */ 4523 } 4524 } 4525 spin_unlock_irq(&phba->hbalock); 4526 4527 lpfc_els_abort(phba, ndlp); 4528 4529 spin_lock_irq(shost->host_lock); 4530 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4531 spin_unlock_irq(shost->host_lock); 4532 4533 ndlp->nlp_last_elscmd = 0; 4534 del_timer_sync(&ndlp->nlp_delayfunc); 4535 4536 list_del_init(&ndlp->els_retry_evt.evt_listp); 4537 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4538 lpfc_cleanup_vports_rrqs(vport, ndlp); 4539 lpfc_unreg_rpi(vport, ndlp); 4540 4541 return 0; 4542 } 4543 4544 /* 4545 * Check to see if we can free the nlp back to the freelist. 4546 * If we are in the middle of using the nlp in the discovery state 4547 * machine, defer the free till we reach the end of the state machine. 4548 */ 4549 static void 4550 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4551 { 4552 struct lpfc_hba *phba = vport->phba; 4553 struct lpfc_rport_data *rdata; 4554 LPFC_MBOXQ_t *mbox; 4555 int rc; 4556 4557 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4558 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4559 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4560 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4561 /* For this case we need to cleanup the default rpi 4562 * allocated by the firmware. 4563 */ 4564 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4565 != NULL) { 4566 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4567 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4568 if (rc) { 4569 mempool_free(mbox, phba->mbox_mem_pool); 4570 } 4571 else { 4572 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4573 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4574 mbox->vport = vport; 4575 mbox->context2 = NULL; 4576 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4577 if (rc == MBX_NOT_FINISHED) { 4578 mempool_free(mbox, phba->mbox_mem_pool); 4579 } 4580 } 4581 } 4582 } 4583 lpfc_cleanup_node(vport, ndlp); 4584 4585 /* 4586 * We can get here with a non-NULL ndlp->rport because when we 4587 * unregister a rport we don't break the rport/node linkage. So if we 4588 * do, make sure we don't leaving any dangling pointers behind. 4589 */ 4590 if (ndlp->rport) { 4591 rdata = ndlp->rport->dd_data; 4592 rdata->pnode = NULL; 4593 ndlp->rport = NULL; 4594 } 4595 } 4596 4597 static int 4598 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4599 uint32_t did) 4600 { 4601 D_ID mydid, ndlpdid, matchdid; 4602 4603 if (did == Bcast_DID) 4604 return 0; 4605 4606 /* First check for Direct match */ 4607 if (ndlp->nlp_DID == did) 4608 return 1; 4609 4610 /* Next check for area/domain identically equals 0 match */ 4611 mydid.un.word = vport->fc_myDID; 4612 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 4613 return 0; 4614 } 4615 4616 matchdid.un.word = did; 4617 ndlpdid.un.word = ndlp->nlp_DID; 4618 if (matchdid.un.b.id == ndlpdid.un.b.id) { 4619 if ((mydid.un.b.domain == matchdid.un.b.domain) && 4620 (mydid.un.b.area == matchdid.un.b.area)) { 4621 if ((ndlpdid.un.b.domain == 0) && 4622 (ndlpdid.un.b.area == 0)) { 4623 if (ndlpdid.un.b.id) 4624 return 1; 4625 } 4626 return 0; 4627 } 4628 4629 matchdid.un.word = ndlp->nlp_DID; 4630 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 4631 (mydid.un.b.area == ndlpdid.un.b.area)) { 4632 if ((matchdid.un.b.domain == 0) && 4633 (matchdid.un.b.area == 0)) { 4634 if (matchdid.un.b.id) 4635 return 1; 4636 } 4637 } 4638 } 4639 return 0; 4640 } 4641 4642 /* Search for a nodelist entry */ 4643 static struct lpfc_nodelist * 4644 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4645 { 4646 struct lpfc_nodelist *ndlp; 4647 uint32_t data1; 4648 4649 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4650 if (lpfc_matchdid(vport, ndlp, did)) { 4651 data1 = (((uint32_t) ndlp->nlp_state << 24) | 4652 ((uint32_t) ndlp->nlp_xri << 16) | 4653 ((uint32_t) ndlp->nlp_type << 8) | 4654 ((uint32_t) ndlp->nlp_rpi & 0xff)); 4655 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4656 "0929 FIND node DID " 4657 "Data: x%p x%x x%x x%x\n", 4658 ndlp, ndlp->nlp_DID, 4659 ndlp->nlp_flag, data1); 4660 return ndlp; 4661 } 4662 } 4663 4664 /* FIND node did <did> NOT FOUND */ 4665 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4666 "0932 FIND node did x%x NOT FOUND.\n", did); 4667 return NULL; 4668 } 4669 4670 struct lpfc_nodelist * 4671 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4672 { 4673 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4674 struct lpfc_nodelist *ndlp; 4675 unsigned long iflags; 4676 4677 spin_lock_irqsave(shost->host_lock, iflags); 4678 ndlp = __lpfc_findnode_did(vport, did); 4679 spin_unlock_irqrestore(shost->host_lock, iflags); 4680 return ndlp; 4681 } 4682 4683 struct lpfc_nodelist * 4684 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 4685 { 4686 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4687 struct lpfc_nodelist *ndlp; 4688 4689 ndlp = lpfc_findnode_did(vport, did); 4690 if (!ndlp) { 4691 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 4692 lpfc_rscn_payload_check(vport, did) == 0) 4693 return NULL; 4694 ndlp = (struct lpfc_nodelist *) 4695 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 4696 if (!ndlp) 4697 return NULL; 4698 lpfc_nlp_init(vport, ndlp, did); 4699 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4700 spin_lock_irq(shost->host_lock); 4701 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4702 spin_unlock_irq(shost->host_lock); 4703 return ndlp; 4704 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4705 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 4706 if (!ndlp) 4707 return NULL; 4708 spin_lock_irq(shost->host_lock); 4709 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4710 spin_unlock_irq(shost->host_lock); 4711 return ndlp; 4712 } 4713 4714 if ((vport->fc_flag & FC_RSCN_MODE) && 4715 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 4716 if (lpfc_rscn_payload_check(vport, did)) { 4717 /* If we've already received a PLOGI from this NPort 4718 * we don't need to try to discover it again. 4719 */ 4720 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 4721 return NULL; 4722 4723 /* Since this node is marked for discovery, 4724 * delay timeout is not needed. 4725 */ 4726 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4727 spin_lock_irq(shost->host_lock); 4728 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4729 spin_unlock_irq(shost->host_lock); 4730 } else 4731 ndlp = NULL; 4732 } else { 4733 /* If we've already received a PLOGI from this NPort, 4734 * or we are already in the process of discovery on it, 4735 * we don't need to try to discover it again. 4736 */ 4737 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 4738 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 4739 ndlp->nlp_flag & NLP_RCV_PLOGI) 4740 return NULL; 4741 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4742 spin_lock_irq(shost->host_lock); 4743 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4744 spin_unlock_irq(shost->host_lock); 4745 } 4746 return ndlp; 4747 } 4748 4749 /* Build a list of nodes to discover based on the loopmap */ 4750 void 4751 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 4752 { 4753 struct lpfc_hba *phba = vport->phba; 4754 int j; 4755 uint32_t alpa, index; 4756 4757 if (!lpfc_is_link_up(phba)) 4758 return; 4759 4760 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 4761 return; 4762 4763 /* Check for loop map present or not */ 4764 if (phba->alpa_map[0]) { 4765 for (j = 1; j <= phba->alpa_map[0]; j++) { 4766 alpa = phba->alpa_map[j]; 4767 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 4768 continue; 4769 lpfc_setup_disc_node(vport, alpa); 4770 } 4771 } else { 4772 /* No alpamap, so try all alpa's */ 4773 for (j = 0; j < FC_MAXLOOP; j++) { 4774 /* If cfg_scan_down is set, start from highest 4775 * ALPA (0xef) to lowest (0x1). 4776 */ 4777 if (vport->cfg_scan_down) 4778 index = j; 4779 else 4780 index = FC_MAXLOOP - j - 1; 4781 alpa = lpfcAlpaArray[index]; 4782 if ((vport->fc_myDID & 0xff) == alpa) 4783 continue; 4784 lpfc_setup_disc_node(vport, alpa); 4785 } 4786 } 4787 return; 4788 } 4789 4790 void 4791 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 4792 { 4793 LPFC_MBOXQ_t *mbox; 4794 struct lpfc_sli *psli = &phba->sli; 4795 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 4796 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 4797 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 4798 int rc; 4799 4800 /* 4801 * if it's not a physical port or if we already send 4802 * clear_la then don't send it. 4803 */ 4804 if ((phba->link_state >= LPFC_CLEAR_LA) || 4805 (vport->port_type != LPFC_PHYSICAL_PORT) || 4806 (phba->sli_rev == LPFC_SLI_REV4)) 4807 return; 4808 4809 /* Link up discovery */ 4810 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 4811 phba->link_state = LPFC_CLEAR_LA; 4812 lpfc_clear_la(phba, mbox); 4813 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 4814 mbox->vport = vport; 4815 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4816 if (rc == MBX_NOT_FINISHED) { 4817 mempool_free(mbox, phba->mbox_mem_pool); 4818 lpfc_disc_flush_list(vport); 4819 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 4820 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 4821 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 4822 phba->link_state = LPFC_HBA_ERROR; 4823 } 4824 } 4825 } 4826 4827 /* Reg_vpi to tell firmware to resume normal operations */ 4828 void 4829 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 4830 { 4831 LPFC_MBOXQ_t *regvpimbox; 4832 4833 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4834 if (regvpimbox) { 4835 lpfc_reg_vpi(vport, regvpimbox); 4836 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 4837 regvpimbox->vport = vport; 4838 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 4839 == MBX_NOT_FINISHED) { 4840 mempool_free(regvpimbox, phba->mbox_mem_pool); 4841 } 4842 } 4843 } 4844 4845 /* Start Link up / RSCN discovery on NPR nodes */ 4846 void 4847 lpfc_disc_start(struct lpfc_vport *vport) 4848 { 4849 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4850 struct lpfc_hba *phba = vport->phba; 4851 uint32_t num_sent; 4852 uint32_t clear_la_pending; 4853 int did_changed; 4854 4855 if (!lpfc_is_link_up(phba)) 4856 return; 4857 4858 if (phba->link_state == LPFC_CLEAR_LA) 4859 clear_la_pending = 1; 4860 else 4861 clear_la_pending = 0; 4862 4863 if (vport->port_state < LPFC_VPORT_READY) 4864 vport->port_state = LPFC_DISC_AUTH; 4865 4866 lpfc_set_disctmo(vport); 4867 4868 if (vport->fc_prevDID == vport->fc_myDID) 4869 did_changed = 0; 4870 else 4871 did_changed = 1; 4872 4873 vport->fc_prevDID = vport->fc_myDID; 4874 vport->num_disc_nodes = 0; 4875 4876 /* Start Discovery state <hba_state> */ 4877 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4878 "0202 Start Discovery hba state x%x " 4879 "Data: x%x x%x x%x\n", 4880 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 4881 vport->fc_adisc_cnt); 4882 4883 /* First do ADISCs - if any */ 4884 num_sent = lpfc_els_disc_adisc(vport); 4885 4886 if (num_sent) 4887 return; 4888 4889 /* Register the VPI for SLI3, NON-NPIV only. */ 4890 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4891 !(vport->fc_flag & FC_PT2PT) && 4892 !(vport->fc_flag & FC_RSCN_MODE) && 4893 (phba->sli_rev < LPFC_SLI_REV4)) { 4894 lpfc_issue_reg_vpi(phba, vport); 4895 return; 4896 } 4897 4898 /* 4899 * For SLI2, we need to set port_state to READY and continue 4900 * discovery. 4901 */ 4902 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 4903 /* If we get here, there is nothing to ADISC */ 4904 if (vport->port_type == LPFC_PHYSICAL_PORT) 4905 lpfc_issue_clear_la(phba, vport); 4906 4907 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 4908 vport->num_disc_nodes = 0; 4909 /* go thru NPR nodes and issue ELS PLOGIs */ 4910 if (vport->fc_npr_cnt) 4911 lpfc_els_disc_plogi(vport); 4912 4913 if (!vport->num_disc_nodes) { 4914 spin_lock_irq(shost->host_lock); 4915 vport->fc_flag &= ~FC_NDISC_ACTIVE; 4916 spin_unlock_irq(shost->host_lock); 4917 lpfc_can_disctmo(vport); 4918 } 4919 } 4920 vport->port_state = LPFC_VPORT_READY; 4921 } else { 4922 /* Next do PLOGIs - if any */ 4923 num_sent = lpfc_els_disc_plogi(vport); 4924 4925 if (num_sent) 4926 return; 4927 4928 if (vport->fc_flag & FC_RSCN_MODE) { 4929 /* Check to see if more RSCNs came in while we 4930 * were processing this one. 4931 */ 4932 if ((vport->fc_rscn_id_cnt == 0) && 4933 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 4934 spin_lock_irq(shost->host_lock); 4935 vport->fc_flag &= ~FC_RSCN_MODE; 4936 spin_unlock_irq(shost->host_lock); 4937 lpfc_can_disctmo(vport); 4938 } else 4939 lpfc_els_handle_rscn(vport); 4940 } 4941 } 4942 return; 4943 } 4944 4945 /* 4946 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 4947 * ring the match the sppecified nodelist. 4948 */ 4949 static void 4950 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4951 { 4952 LIST_HEAD(completions); 4953 struct lpfc_sli *psli; 4954 IOCB_t *icmd; 4955 struct lpfc_iocbq *iocb, *next_iocb; 4956 struct lpfc_sli_ring *pring; 4957 4958 psli = &phba->sli; 4959 pring = &psli->ring[LPFC_ELS_RING]; 4960 4961 /* Error matching iocb on txq or txcmplq 4962 * First check the txq. 4963 */ 4964 spin_lock_irq(&phba->hbalock); 4965 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4966 if (iocb->context1 != ndlp) { 4967 continue; 4968 } 4969 icmd = &iocb->iocb; 4970 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 4971 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 4972 4973 list_move_tail(&iocb->list, &completions); 4974 pring->txq_cnt--; 4975 } 4976 } 4977 4978 /* Next check the txcmplq */ 4979 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 4980 if (iocb->context1 != ndlp) { 4981 continue; 4982 } 4983 icmd = &iocb->iocb; 4984 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 4985 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 4986 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 4987 } 4988 } 4989 spin_unlock_irq(&phba->hbalock); 4990 4991 /* Cancel all the IOCBs from the completions list */ 4992 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4993 IOERR_SLI_ABORTED); 4994 } 4995 4996 static void 4997 lpfc_disc_flush_list(struct lpfc_vport *vport) 4998 { 4999 struct lpfc_nodelist *ndlp, *next_ndlp; 5000 struct lpfc_hba *phba = vport->phba; 5001 5002 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5003 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5004 nlp_listp) { 5005 if (!NLP_CHK_NODE_ACT(ndlp)) 5006 continue; 5007 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5008 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5009 lpfc_free_tx(phba, ndlp); 5010 } 5011 } 5012 } 5013 } 5014 5015 void 5016 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5017 { 5018 lpfc_els_flush_rscn(vport); 5019 lpfc_els_flush_cmd(vport); 5020 lpfc_disc_flush_list(vport); 5021 } 5022 5023 /*****************************************************************************/ 5024 /* 5025 * NAME: lpfc_disc_timeout 5026 * 5027 * FUNCTION: Fibre Channel driver discovery timeout routine. 5028 * 5029 * EXECUTION ENVIRONMENT: interrupt only 5030 * 5031 * CALLED FROM: 5032 * Timer function 5033 * 5034 * RETURNS: 5035 * none 5036 */ 5037 /*****************************************************************************/ 5038 void 5039 lpfc_disc_timeout(unsigned long ptr) 5040 { 5041 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5042 struct lpfc_hba *phba = vport->phba; 5043 uint32_t tmo_posted; 5044 unsigned long flags = 0; 5045 5046 if (unlikely(!phba)) 5047 return; 5048 5049 spin_lock_irqsave(&vport->work_port_lock, flags); 5050 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5051 if (!tmo_posted) 5052 vport->work_port_events |= WORKER_DISC_TMO; 5053 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5054 5055 if (!tmo_posted) 5056 lpfc_worker_wake_up(phba); 5057 return; 5058 } 5059 5060 static void 5061 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5062 { 5063 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5064 struct lpfc_hba *phba = vport->phba; 5065 struct lpfc_sli *psli = &phba->sli; 5066 struct lpfc_nodelist *ndlp, *next_ndlp; 5067 LPFC_MBOXQ_t *initlinkmbox; 5068 int rc, clrlaerr = 0; 5069 5070 if (!(vport->fc_flag & FC_DISC_TMO)) 5071 return; 5072 5073 spin_lock_irq(shost->host_lock); 5074 vport->fc_flag &= ~FC_DISC_TMO; 5075 spin_unlock_irq(shost->host_lock); 5076 5077 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5078 "disc timeout: state:x%x rtry:x%x flg:x%x", 5079 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5080 5081 switch (vport->port_state) { 5082 5083 case LPFC_LOCAL_CFG_LINK: 5084 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 5085 * FAN 5086 */ 5087 /* FAN timeout */ 5088 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5089 "0221 FAN timeout\n"); 5090 /* Start discovery by sending FLOGI, clean up old rpis */ 5091 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5092 nlp_listp) { 5093 if (!NLP_CHK_NODE_ACT(ndlp)) 5094 continue; 5095 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5096 continue; 5097 if (ndlp->nlp_type & NLP_FABRIC) { 5098 /* Clean up the ndlp on Fabric connections */ 5099 lpfc_drop_node(vport, ndlp); 5100 5101 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5102 /* Fail outstanding IO now since device 5103 * is marked for PLOGI. 5104 */ 5105 lpfc_unreg_rpi(vport, ndlp); 5106 } 5107 } 5108 if (vport->port_state != LPFC_FLOGI) { 5109 if (phba->sli_rev <= LPFC_SLI_REV3) 5110 lpfc_initial_flogi(vport); 5111 else 5112 lpfc_issue_init_vfi(vport); 5113 return; 5114 } 5115 break; 5116 5117 case LPFC_FDISC: 5118 case LPFC_FLOGI: 5119 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5120 /* Initial FLOGI timeout */ 5121 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5122 "0222 Initial %s timeout\n", 5123 vport->vpi ? "FDISC" : "FLOGI"); 5124 5125 /* Assume no Fabric and go on with discovery. 5126 * Check for outstanding ELS FLOGI to abort. 5127 */ 5128 5129 /* FLOGI failed, so just use loop map to make discovery list */ 5130 lpfc_disc_list_loopmap(vport); 5131 5132 /* Start discovery */ 5133 lpfc_disc_start(vport); 5134 break; 5135 5136 case LPFC_FABRIC_CFG_LINK: 5137 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5138 NameServer login */ 5139 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5140 "0223 Timeout while waiting for " 5141 "NameServer login\n"); 5142 /* Next look for NameServer ndlp */ 5143 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5144 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5145 lpfc_els_abort(phba, ndlp); 5146 5147 /* ReStart discovery */ 5148 goto restart_disc; 5149 5150 case LPFC_NS_QRY: 5151 /* Check for wait for NameServer Rsp timeout */ 5152 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5153 "0224 NameServer Query timeout " 5154 "Data: x%x x%x\n", 5155 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5156 5157 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5158 /* Try it one more time */ 5159 vport->fc_ns_retry++; 5160 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 5161 vport->fc_ns_retry, 0); 5162 if (rc == 0) 5163 break; 5164 } 5165 vport->fc_ns_retry = 0; 5166 5167 restart_disc: 5168 /* 5169 * Discovery is over. 5170 * set port_state to PORT_READY if SLI2. 5171 * cmpl_reg_vpi will set port_state to READY for SLI3. 5172 */ 5173 if (phba->sli_rev < LPFC_SLI_REV4) { 5174 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5175 lpfc_issue_reg_vpi(phba, vport); 5176 else { 5177 lpfc_issue_clear_la(phba, vport); 5178 vport->port_state = LPFC_VPORT_READY; 5179 } 5180 } 5181 5182 /* Setup and issue mailbox INITIALIZE LINK command */ 5183 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5184 if (!initlinkmbox) { 5185 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5186 "0206 Device Discovery " 5187 "completion error\n"); 5188 phba->link_state = LPFC_HBA_ERROR; 5189 break; 5190 } 5191 5192 lpfc_linkdown(phba); 5193 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5194 phba->cfg_link_speed); 5195 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5196 initlinkmbox->vport = vport; 5197 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5198 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5199 lpfc_set_loopback_flag(phba); 5200 if (rc == MBX_NOT_FINISHED) 5201 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5202 5203 break; 5204 5205 case LPFC_DISC_AUTH: 5206 /* Node Authentication timeout */ 5207 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5208 "0227 Node Authentication timeout\n"); 5209 lpfc_disc_flush_list(vport); 5210 5211 /* 5212 * set port_state to PORT_READY if SLI2. 5213 * cmpl_reg_vpi will set port_state to READY for SLI3. 5214 */ 5215 if (phba->sli_rev < LPFC_SLI_REV4) { 5216 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5217 lpfc_issue_reg_vpi(phba, vport); 5218 else { /* NPIV Not enabled */ 5219 lpfc_issue_clear_la(phba, vport); 5220 vport->port_state = LPFC_VPORT_READY; 5221 } 5222 } 5223 break; 5224 5225 case LPFC_VPORT_READY: 5226 if (vport->fc_flag & FC_RSCN_MODE) { 5227 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5228 "0231 RSCN timeout Data: x%x " 5229 "x%x\n", 5230 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5231 5232 /* Cleanup any outstanding ELS commands */ 5233 lpfc_els_flush_cmd(vport); 5234 5235 lpfc_els_flush_rscn(vport); 5236 lpfc_disc_flush_list(vport); 5237 } 5238 break; 5239 5240 default: 5241 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5242 "0273 Unexpected discovery timeout, " 5243 "vport State x%x\n", vport->port_state); 5244 break; 5245 } 5246 5247 switch (phba->link_state) { 5248 case LPFC_CLEAR_LA: 5249 /* CLEAR LA timeout */ 5250 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5251 "0228 CLEAR LA timeout\n"); 5252 clrlaerr = 1; 5253 break; 5254 5255 case LPFC_LINK_UP: 5256 lpfc_issue_clear_la(phba, vport); 5257 /* Drop thru */ 5258 case LPFC_LINK_UNKNOWN: 5259 case LPFC_WARM_START: 5260 case LPFC_INIT_START: 5261 case LPFC_INIT_MBX_CMDS: 5262 case LPFC_LINK_DOWN: 5263 case LPFC_HBA_ERROR: 5264 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5265 "0230 Unexpected timeout, hba link " 5266 "state x%x\n", phba->link_state); 5267 clrlaerr = 1; 5268 break; 5269 5270 case LPFC_HBA_READY: 5271 break; 5272 } 5273 5274 if (clrlaerr) { 5275 lpfc_disc_flush_list(vport); 5276 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5277 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5278 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5279 vport->port_state = LPFC_VPORT_READY; 5280 } 5281 5282 return; 5283 } 5284 5285 /* 5286 * This routine handles processing a NameServer REG_LOGIN mailbox 5287 * command upon completion. It is setup in the LPFC_MBOXQ 5288 * as the completion routine when the command is 5289 * handed off to the SLI layer. 5290 */ 5291 void 5292 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5293 { 5294 MAILBOX_t *mb = &pmb->u.mb; 5295 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5296 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5297 struct lpfc_vport *vport = pmb->vport; 5298 5299 pmb->context1 = NULL; 5300 pmb->context2 = NULL; 5301 5302 if (phba->sli_rev < LPFC_SLI_REV4) 5303 ndlp->nlp_rpi = mb->un.varWords[0]; 5304 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5305 ndlp->nlp_type |= NLP_FABRIC; 5306 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5307 5308 /* 5309 * Start issuing Fabric-Device Management Interface (FDMI) command to 5310 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if 5311 * fdmi-on=2 (supporting RPA/hostnmae) 5312 */ 5313 5314 if (vport->cfg_fdmi_on == 1) 5315 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA); 5316 else 5317 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60); 5318 5319 /* decrement the node reference count held for this callback 5320 * function. 5321 */ 5322 lpfc_nlp_put(ndlp); 5323 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5324 kfree(mp); 5325 mempool_free(pmb, phba->mbox_mem_pool); 5326 5327 return; 5328 } 5329 5330 static int 5331 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5332 { 5333 uint16_t *rpi = param; 5334 5335 return ndlp->nlp_rpi == *rpi; 5336 } 5337 5338 static int 5339 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5340 { 5341 return memcmp(&ndlp->nlp_portname, param, 5342 sizeof(ndlp->nlp_portname)) == 0; 5343 } 5344 5345 static struct lpfc_nodelist * 5346 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5347 { 5348 struct lpfc_nodelist *ndlp; 5349 5350 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5351 if (filter(ndlp, param)) 5352 return ndlp; 5353 } 5354 return NULL; 5355 } 5356 5357 /* 5358 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5359 * returns the node list element pointer else return NULL. 5360 */ 5361 struct lpfc_nodelist * 5362 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5363 { 5364 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5365 } 5366 5367 /* 5368 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5369 * returns the node element list pointer else return NULL. 5370 */ 5371 struct lpfc_nodelist * 5372 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5373 { 5374 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5375 struct lpfc_nodelist *ndlp; 5376 5377 spin_lock_irq(shost->host_lock); 5378 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5379 spin_unlock_irq(shost->host_lock); 5380 return ndlp; 5381 } 5382 5383 /* 5384 * This routine looks up the ndlp lists for the given RPI. If the rpi 5385 * is found, the routine returns the node element list pointer else 5386 * return NULL. 5387 */ 5388 struct lpfc_nodelist * 5389 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5390 { 5391 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5392 struct lpfc_nodelist *ndlp; 5393 5394 spin_lock_irq(shost->host_lock); 5395 ndlp = __lpfc_findnode_rpi(vport, rpi); 5396 spin_unlock_irq(shost->host_lock); 5397 return ndlp; 5398 } 5399 5400 /** 5401 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5402 * @phba: pointer to lpfc hba data structure. 5403 * @vpi: the physical host virtual N_Port identifier. 5404 * 5405 * This routine finds a vport on a HBA (referred by @phba) through a 5406 * @vpi. The function walks the HBA's vport list and returns the address 5407 * of the vport with the matching @vpi. 5408 * 5409 * Return code 5410 * NULL - No vport with the matching @vpi found 5411 * Otherwise - Address to the vport with the matching @vpi. 5412 **/ 5413 struct lpfc_vport * 5414 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5415 { 5416 struct lpfc_vport *vport; 5417 unsigned long flags; 5418 int i = 0; 5419 5420 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5421 if (vpi > 0) { 5422 /* 5423 * Translate the physical vpi to the logical vpi. The 5424 * vport stores the logical vpi. 5425 */ 5426 for (i = 0; i < phba->max_vpi; i++) { 5427 if (vpi == phba->vpi_ids[i]) 5428 break; 5429 } 5430 5431 if (i >= phba->max_vpi) { 5432 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5433 "2936 Could not find Vport mapped " 5434 "to vpi %d\n", vpi); 5435 return NULL; 5436 } 5437 } 5438 5439 spin_lock_irqsave(&phba->hbalock, flags); 5440 list_for_each_entry(vport, &phba->port_list, listentry) { 5441 if (vport->vpi == i) { 5442 spin_unlock_irqrestore(&phba->hbalock, flags); 5443 return vport; 5444 } 5445 } 5446 spin_unlock_irqrestore(&phba->hbalock, flags); 5447 return NULL; 5448 } 5449 5450 void 5451 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5452 uint32_t did) 5453 { 5454 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5455 5456 lpfc_initialize_node(vport, ndlp, did); 5457 INIT_LIST_HEAD(&ndlp->nlp_listp); 5458 5459 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5460 "node init: did:x%x", 5461 ndlp->nlp_DID, 0, 0); 5462 5463 return; 5464 } 5465 5466 /* This routine releases all resources associated with a specifc NPort's ndlp 5467 * and mempool_free's the nodelist. 5468 */ 5469 static void 5470 lpfc_nlp_release(struct kref *kref) 5471 { 5472 struct lpfc_hba *phba; 5473 unsigned long flags; 5474 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5475 kref); 5476 5477 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5478 "node release: did:x%x flg:x%x type:x%x", 5479 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5480 5481 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5482 "0279 lpfc_nlp_release: ndlp:x%p " 5483 "usgmap:x%x refcnt:%d\n", 5484 (void *)ndlp, ndlp->nlp_usg_map, 5485 atomic_read(&ndlp->kref.refcount)); 5486 5487 /* remove ndlp from action. */ 5488 lpfc_nlp_remove(ndlp->vport, ndlp); 5489 5490 /* clear the ndlp active flag for all release cases */ 5491 phba = ndlp->phba; 5492 spin_lock_irqsave(&phba->ndlp_lock, flags); 5493 NLP_CLR_NODE_ACT(ndlp); 5494 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5495 if (phba->sli_rev == LPFC_SLI_REV4) 5496 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5497 5498 /* free ndlp memory for final ndlp release */ 5499 if (NLP_CHK_FREE_REQ(ndlp)) { 5500 kfree(ndlp->lat_data); 5501 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5502 } 5503 } 5504 5505 /* This routine bumps the reference count for a ndlp structure to ensure 5506 * that one discovery thread won't free a ndlp while another discovery thread 5507 * is using it. 5508 */ 5509 struct lpfc_nodelist * 5510 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5511 { 5512 struct lpfc_hba *phba; 5513 unsigned long flags; 5514 5515 if (ndlp) { 5516 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5517 "node get: did:x%x flg:x%x refcnt:x%x", 5518 ndlp->nlp_DID, ndlp->nlp_flag, 5519 atomic_read(&ndlp->kref.refcount)); 5520 /* The check of ndlp usage to prevent incrementing the 5521 * ndlp reference count that is in the process of being 5522 * released. 5523 */ 5524 phba = ndlp->phba; 5525 spin_lock_irqsave(&phba->ndlp_lock, flags); 5526 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5527 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5528 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5529 "0276 lpfc_nlp_get: ndlp:x%p " 5530 "usgmap:x%x refcnt:%d\n", 5531 (void *)ndlp, ndlp->nlp_usg_map, 5532 atomic_read(&ndlp->kref.refcount)); 5533 return NULL; 5534 } else 5535 kref_get(&ndlp->kref); 5536 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5537 } 5538 return ndlp; 5539 } 5540 5541 /* This routine decrements the reference count for a ndlp structure. If the 5542 * count goes to 0, this indicates the the associated nodelist should be 5543 * freed. Returning 1 indicates the ndlp resource has been released; on the 5544 * other hand, returning 0 indicates the ndlp resource has not been released 5545 * yet. 5546 */ 5547 int 5548 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 5549 { 5550 struct lpfc_hba *phba; 5551 unsigned long flags; 5552 5553 if (!ndlp) 5554 return 1; 5555 5556 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5557 "node put: did:x%x flg:x%x refcnt:x%x", 5558 ndlp->nlp_DID, ndlp->nlp_flag, 5559 atomic_read(&ndlp->kref.refcount)); 5560 phba = ndlp->phba; 5561 spin_lock_irqsave(&phba->ndlp_lock, flags); 5562 /* Check the ndlp memory free acknowledge flag to avoid the 5563 * possible race condition that kref_put got invoked again 5564 * after previous one has done ndlp memory free. 5565 */ 5566 if (NLP_CHK_FREE_ACK(ndlp)) { 5567 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5568 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5569 "0274 lpfc_nlp_put: ndlp:x%p " 5570 "usgmap:x%x refcnt:%d\n", 5571 (void *)ndlp, ndlp->nlp_usg_map, 5572 atomic_read(&ndlp->kref.refcount)); 5573 return 1; 5574 } 5575 /* Check the ndlp inactivate log flag to avoid the possible 5576 * race condition that kref_put got invoked again after ndlp 5577 * is already in inactivating state. 5578 */ 5579 if (NLP_CHK_IACT_REQ(ndlp)) { 5580 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5581 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5582 "0275 lpfc_nlp_put: ndlp:x%p " 5583 "usgmap:x%x refcnt:%d\n", 5584 (void *)ndlp, ndlp->nlp_usg_map, 5585 atomic_read(&ndlp->kref.refcount)); 5586 return 1; 5587 } 5588 /* For last put, mark the ndlp usage flags to make sure no 5589 * other kref_get and kref_put on the same ndlp shall get 5590 * in between the process when the final kref_put has been 5591 * invoked on this ndlp. 5592 */ 5593 if (atomic_read(&ndlp->kref.refcount) == 1) { 5594 /* Indicate ndlp is put to inactive state. */ 5595 NLP_SET_IACT_REQ(ndlp); 5596 /* Acknowledge ndlp memory free has been seen. */ 5597 if (NLP_CHK_FREE_REQ(ndlp)) 5598 NLP_SET_FREE_ACK(ndlp); 5599 } 5600 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5601 /* Note, the kref_put returns 1 when decrementing a reference 5602 * count that was 1, it invokes the release callback function, 5603 * but it still left the reference count as 1 (not actually 5604 * performs the last decrementation). Otherwise, it actually 5605 * decrements the reference count and returns 0. 5606 */ 5607 return kref_put(&ndlp->kref, lpfc_nlp_release); 5608 } 5609 5610 /* This routine free's the specified nodelist if it is not in use 5611 * by any other discovery thread. This routine returns 1 if the 5612 * ndlp has been freed. A return value of 0 indicates the ndlp is 5613 * not yet been released. 5614 */ 5615 int 5616 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 5617 { 5618 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5619 "node not used: did:x%x flg:x%x refcnt:x%x", 5620 ndlp->nlp_DID, ndlp->nlp_flag, 5621 atomic_read(&ndlp->kref.refcount)); 5622 if (atomic_read(&ndlp->kref.refcount) == 1) 5623 if (lpfc_nlp_put(ndlp)) 5624 return 1; 5625 return 0; 5626 } 5627 5628 /** 5629 * lpfc_fcf_inuse - Check if FCF can be unregistered. 5630 * @phba: Pointer to hba context object. 5631 * 5632 * This function iterate through all FC nodes associated 5633 * will all vports to check if there is any node with 5634 * fc_rports associated with it. If there is an fc_rport 5635 * associated with the node, then the node is either in 5636 * discovered state or its devloss_timer is pending. 5637 */ 5638 static int 5639 lpfc_fcf_inuse(struct lpfc_hba *phba) 5640 { 5641 struct lpfc_vport **vports; 5642 int i, ret = 0; 5643 struct lpfc_nodelist *ndlp; 5644 struct Scsi_Host *shost; 5645 5646 vports = lpfc_create_vport_work_array(phba); 5647 5648 /* If driver cannot allocate memory, indicate fcf is in use */ 5649 if (!vports) 5650 return 1; 5651 5652 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5653 shost = lpfc_shost_from_vport(vports[i]); 5654 spin_lock_irq(shost->host_lock); 5655 /* 5656 * IF the CVL_RCVD bit is not set then we have sent the 5657 * flogi. 5658 * If dev_loss fires while we are waiting we do not want to 5659 * unreg the fcf. 5660 */ 5661 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 5662 spin_unlock_irq(shost->host_lock); 5663 ret = 1; 5664 goto out; 5665 } 5666 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5667 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 5668 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 5669 ret = 1; 5670 spin_unlock_irq(shost->host_lock); 5671 goto out; 5672 } else { 5673 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 5674 "2624 RPI %x DID %x flg %x still " 5675 "logged in\n", 5676 ndlp->nlp_rpi, ndlp->nlp_DID, 5677 ndlp->nlp_flag); 5678 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 5679 ret = 1; 5680 } 5681 } 5682 spin_unlock_irq(shost->host_lock); 5683 } 5684 out: 5685 lpfc_destroy_vport_work_array(phba, vports); 5686 return ret; 5687 } 5688 5689 /** 5690 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 5691 * @phba: Pointer to hba context object. 5692 * @mboxq: Pointer to mailbox object. 5693 * 5694 * This function frees memory associated with the mailbox command. 5695 */ 5696 void 5697 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5698 { 5699 struct lpfc_vport *vport = mboxq->vport; 5700 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5701 5702 if (mboxq->u.mb.mbxStatus) { 5703 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5704 "2555 UNREG_VFI mbxStatus error x%x " 5705 "HBA state x%x\n", 5706 mboxq->u.mb.mbxStatus, vport->port_state); 5707 } 5708 spin_lock_irq(shost->host_lock); 5709 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 5710 spin_unlock_irq(shost->host_lock); 5711 mempool_free(mboxq, phba->mbox_mem_pool); 5712 return; 5713 } 5714 5715 /** 5716 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 5717 * @phba: Pointer to hba context object. 5718 * @mboxq: Pointer to mailbox object. 5719 * 5720 * This function frees memory associated with the mailbox command. 5721 */ 5722 static void 5723 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5724 { 5725 struct lpfc_vport *vport = mboxq->vport; 5726 5727 if (mboxq->u.mb.mbxStatus) { 5728 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5729 "2550 UNREG_FCFI mbxStatus error x%x " 5730 "HBA state x%x\n", 5731 mboxq->u.mb.mbxStatus, vport->port_state); 5732 } 5733 mempool_free(mboxq, phba->mbox_mem_pool); 5734 return; 5735 } 5736 5737 /** 5738 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 5739 * @phba: Pointer to hba context object. 5740 * 5741 * This function prepare the HBA for unregistering the currently registered 5742 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 5743 * VFIs. 5744 */ 5745 int 5746 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 5747 { 5748 struct lpfc_vport **vports; 5749 struct lpfc_nodelist *ndlp; 5750 struct Scsi_Host *shost; 5751 int i, rc; 5752 5753 /* Unregister RPIs */ 5754 if (lpfc_fcf_inuse(phba)) 5755 lpfc_unreg_hba_rpis(phba); 5756 5757 /* At this point, all discovery is aborted */ 5758 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 5759 5760 /* Unregister VPIs */ 5761 vports = lpfc_create_vport_work_array(phba); 5762 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 5763 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5764 /* Stop FLOGI/FDISC retries */ 5765 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 5766 if (ndlp) 5767 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 5768 lpfc_cleanup_pending_mbox(vports[i]); 5769 if (phba->sli_rev == LPFC_SLI_REV4) 5770 lpfc_sli4_unreg_all_rpis(vports[i]); 5771 lpfc_mbx_unreg_vpi(vports[i]); 5772 shost = lpfc_shost_from_vport(vports[i]); 5773 spin_lock_irq(shost->host_lock); 5774 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 5775 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 5776 spin_unlock_irq(shost->host_lock); 5777 } 5778 lpfc_destroy_vport_work_array(phba, vports); 5779 5780 /* Cleanup any outstanding ELS commands */ 5781 lpfc_els_flush_all_cmd(phba); 5782 5783 /* Unregister the physical port VFI */ 5784 rc = lpfc_issue_unreg_vfi(phba->pport); 5785 return rc; 5786 } 5787 5788 /** 5789 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 5790 * @phba: Pointer to hba context object. 5791 * 5792 * This function issues synchronous unregister FCF mailbox command to HBA to 5793 * unregister the currently registered FCF record. The driver does not reset 5794 * the driver FCF usage state flags. 5795 * 5796 * Return 0 if successfully issued, none-zero otherwise. 5797 */ 5798 int 5799 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 5800 { 5801 LPFC_MBOXQ_t *mbox; 5802 int rc; 5803 5804 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5805 if (!mbox) { 5806 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5807 "2551 UNREG_FCFI mbox allocation failed" 5808 "HBA state x%x\n", phba->pport->port_state); 5809 return -ENOMEM; 5810 } 5811 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 5812 mbox->vport = phba->pport; 5813 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 5814 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5815 5816 if (rc == MBX_NOT_FINISHED) { 5817 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5818 "2552 Unregister FCFI command failed rc x%x " 5819 "HBA state x%x\n", 5820 rc, phba->pport->port_state); 5821 return -EINVAL; 5822 } 5823 return 0; 5824 } 5825 5826 /** 5827 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 5828 * @phba: Pointer to hba context object. 5829 * 5830 * This function unregisters the currently reigstered FCF. This function 5831 * also tries to find another FCF for discovery by rescan the HBA FCF table. 5832 */ 5833 void 5834 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 5835 { 5836 int rc; 5837 5838 /* Preparation for unregistering fcf */ 5839 rc = lpfc_unregister_fcf_prep(phba); 5840 if (rc) { 5841 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 5842 "2748 Failed to prepare for unregistering " 5843 "HBA's FCF record: rc=%d\n", rc); 5844 return; 5845 } 5846 5847 /* Now, unregister FCF record and reset HBA FCF state */ 5848 rc = lpfc_sli4_unregister_fcf(phba); 5849 if (rc) 5850 return; 5851 /* Reset HBA FCF states after successful unregister FCF */ 5852 phba->fcf.fcf_flag = 0; 5853 phba->fcf.current_rec.flag = 0; 5854 5855 /* 5856 * If driver is not unloading, check if there is any other 5857 * FCF record that can be used for discovery. 5858 */ 5859 if ((phba->pport->load_flag & FC_UNLOADING) || 5860 (phba->link_state < LPFC_LINK_UP)) 5861 return; 5862 5863 /* This is considered as the initial FCF discovery scan */ 5864 spin_lock_irq(&phba->hbalock); 5865 phba->fcf.fcf_flag |= FCF_INIT_DISC; 5866 spin_unlock_irq(&phba->hbalock); 5867 5868 /* Reset FCF roundrobin bmask for new discovery */ 5869 lpfc_sli4_clear_fcf_rr_bmask(phba); 5870 5871 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5872 5873 if (rc) { 5874 spin_lock_irq(&phba->hbalock); 5875 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 5876 spin_unlock_irq(&phba->hbalock); 5877 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5878 "2553 lpfc_unregister_unused_fcf failed " 5879 "to read FCF record HBA state x%x\n", 5880 phba->pport->port_state); 5881 } 5882 } 5883 5884 /** 5885 * lpfc_unregister_fcf - Unregister the currently registered fcf record 5886 * @phba: Pointer to hba context object. 5887 * 5888 * This function just unregisters the currently reigstered FCF. It does not 5889 * try to find another FCF for discovery. 5890 */ 5891 void 5892 lpfc_unregister_fcf(struct lpfc_hba *phba) 5893 { 5894 int rc; 5895 5896 /* Preparation for unregistering fcf */ 5897 rc = lpfc_unregister_fcf_prep(phba); 5898 if (rc) { 5899 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 5900 "2749 Failed to prepare for unregistering " 5901 "HBA's FCF record: rc=%d\n", rc); 5902 return; 5903 } 5904 5905 /* Now, unregister FCF record and reset HBA FCF state */ 5906 rc = lpfc_sli4_unregister_fcf(phba); 5907 if (rc) 5908 return; 5909 /* Set proper HBA FCF states after successful unregister FCF */ 5910 spin_lock_irq(&phba->hbalock); 5911 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 5912 spin_unlock_irq(&phba->hbalock); 5913 } 5914 5915 /** 5916 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 5917 * @phba: Pointer to hba context object. 5918 * 5919 * This function check if there are any connected remote port for the FCF and 5920 * if all the devices are disconnected, this function unregister FCFI. 5921 * This function also tries to use another FCF for discovery. 5922 */ 5923 void 5924 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 5925 { 5926 /* 5927 * If HBA is not running in FIP mode, if HBA does not support 5928 * FCoE, if FCF discovery is ongoing, or if FCF has not been 5929 * registered, do nothing. 5930 */ 5931 spin_lock_irq(&phba->hbalock); 5932 if (!(phba->hba_flag & HBA_FCOE_MODE) || 5933 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 5934 !(phba->hba_flag & HBA_FIP_SUPPORT) || 5935 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 5936 (phba->pport->port_state == LPFC_FLOGI)) { 5937 spin_unlock_irq(&phba->hbalock); 5938 return; 5939 } 5940 spin_unlock_irq(&phba->hbalock); 5941 5942 if (lpfc_fcf_inuse(phba)) 5943 return; 5944 5945 lpfc_unregister_fcf_rescan(phba); 5946 } 5947 5948 /** 5949 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 5950 * @phba: Pointer to hba context object. 5951 * @buff: Buffer containing the FCF connection table as in the config 5952 * region. 5953 * This function create driver data structure for the FCF connection 5954 * record table read from config region 23. 5955 */ 5956 static void 5957 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 5958 uint8_t *buff) 5959 { 5960 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5961 struct lpfc_fcf_conn_hdr *conn_hdr; 5962 struct lpfc_fcf_conn_rec *conn_rec; 5963 uint32_t record_count; 5964 int i; 5965 5966 /* Free the current connect table */ 5967 list_for_each_entry_safe(conn_entry, next_conn_entry, 5968 &phba->fcf_conn_rec_list, list) { 5969 list_del_init(&conn_entry->list); 5970 kfree(conn_entry); 5971 } 5972 5973 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 5974 record_count = conn_hdr->length * sizeof(uint32_t)/ 5975 sizeof(struct lpfc_fcf_conn_rec); 5976 5977 conn_rec = (struct lpfc_fcf_conn_rec *) 5978 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 5979 5980 for (i = 0; i < record_count; i++) { 5981 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 5982 continue; 5983 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 5984 GFP_KERNEL); 5985 if (!conn_entry) { 5986 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5987 "2566 Failed to allocate connection" 5988 " table entry\n"); 5989 return; 5990 } 5991 5992 memcpy(&conn_entry->conn_rec, &conn_rec[i], 5993 sizeof(struct lpfc_fcf_conn_rec)); 5994 conn_entry->conn_rec.vlan_tag = 5995 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF; 5996 conn_entry->conn_rec.flags = 5997 le16_to_cpu(conn_entry->conn_rec.flags); 5998 list_add_tail(&conn_entry->list, 5999 &phba->fcf_conn_rec_list); 6000 } 6001 } 6002 6003 /** 6004 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6005 * @phba: Pointer to hba context object. 6006 * @buff: Buffer containing the FCoE parameter data structure. 6007 * 6008 * This function update driver data structure with config 6009 * parameters read from config region 23. 6010 */ 6011 static void 6012 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6013 uint8_t *buff) 6014 { 6015 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6016 struct lpfc_fcoe_params *fcoe_param; 6017 6018 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6019 buff; 6020 fcoe_param = (struct lpfc_fcoe_params *) 6021 (buff + sizeof(struct lpfc_fip_param_hdr)); 6022 6023 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6024 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6025 return; 6026 6027 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6028 phba->valid_vlan = 1; 6029 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6030 0xFFF; 6031 } 6032 6033 phba->fc_map[0] = fcoe_param->fc_map[0]; 6034 phba->fc_map[1] = fcoe_param->fc_map[1]; 6035 phba->fc_map[2] = fcoe_param->fc_map[2]; 6036 return; 6037 } 6038 6039 /** 6040 * lpfc_get_rec_conf23 - Get a record type in config region data. 6041 * @buff: Buffer containing config region 23 data. 6042 * @size: Size of the data buffer. 6043 * @rec_type: Record type to be searched. 6044 * 6045 * This function searches config region data to find the beginning 6046 * of the record specified by record_type. If record found, this 6047 * function return pointer to the record else return NULL. 6048 */ 6049 static uint8_t * 6050 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6051 { 6052 uint32_t offset = 0, rec_length; 6053 6054 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6055 (size < sizeof(uint32_t))) 6056 return NULL; 6057 6058 rec_length = buff[offset + 1]; 6059 6060 /* 6061 * One TLV record has one word header and number of data words 6062 * specified in the rec_length field of the record header. 6063 */ 6064 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6065 <= size) { 6066 if (buff[offset] == rec_type) 6067 return &buff[offset]; 6068 6069 if (buff[offset] == LPFC_REGION23_LAST_REC) 6070 return NULL; 6071 6072 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6073 rec_length = buff[offset + 1]; 6074 } 6075 return NULL; 6076 } 6077 6078 /** 6079 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6080 * @phba: Pointer to lpfc_hba data structure. 6081 * @buff: Buffer containing config region 23 data. 6082 * @size: Size of the data buffer. 6083 * 6084 * This function parses the FCoE config parameters in config region 23 and 6085 * populate driver data structure with the parameters. 6086 */ 6087 void 6088 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6089 uint8_t *buff, 6090 uint32_t size) 6091 { 6092 uint32_t offset = 0, rec_length; 6093 uint8_t *rec_ptr; 6094 6095 /* 6096 * If data size is less than 2 words signature and version cannot be 6097 * verified. 6098 */ 6099 if (size < 2*sizeof(uint32_t)) 6100 return; 6101 6102 /* Check the region signature first */ 6103 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6105 "2567 Config region 23 has bad signature\n"); 6106 return; 6107 } 6108 6109 offset += 4; 6110 6111 /* Check the data structure version */ 6112 if (buff[offset] != LPFC_REGION23_VERSION) { 6113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6114 "2568 Config region 23 has bad version\n"); 6115 return; 6116 } 6117 offset += 4; 6118 6119 rec_length = buff[offset + 1]; 6120 6121 /* Read FCoE param record */ 6122 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6123 size - offset, FCOE_PARAM_TYPE); 6124 if (rec_ptr) 6125 lpfc_read_fcoe_param(phba, rec_ptr); 6126 6127 /* Read FCF connection table */ 6128 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6129 size - offset, FCOE_CONN_TBL_TYPE); 6130 if (rec_ptr) 6131 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6132 6133 } 6134