1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/slab.h> 25 #include <linux/pci.h> 26 #include <linux/kthread.h> 27 #include <linux/interrupt.h> 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_device.h> 31 #include <scsi/scsi_host.h> 32 #include <scsi/scsi_transport_fc.h> 33 34 #include "lpfc_hw4.h" 35 #include "lpfc_hw.h" 36 #include "lpfc_nl.h" 37 #include "lpfc_disc.h" 38 #include "lpfc_sli.h" 39 #include "lpfc_sli4.h" 40 #include "lpfc_scsi.h" 41 #include "lpfc.h" 42 #include "lpfc_logmsg.h" 43 #include "lpfc_crtn.h" 44 #include "lpfc_vport.h" 45 #include "lpfc_debugfs.h" 46 47 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 48 static uint8_t lpfcAlpaArray[] = { 49 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 50 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 51 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 52 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 53 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 54 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 55 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 56 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 57 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 58 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 59 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 60 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 61 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 62 }; 63 64 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 65 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 66 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 67 static int lpfc_fcf_inuse(struct lpfc_hba *); 68 69 void 70 lpfc_terminate_rport_io(struct fc_rport *rport) 71 { 72 struct lpfc_rport_data *rdata; 73 struct lpfc_nodelist * ndlp; 74 struct lpfc_hba *phba; 75 76 rdata = rport->dd_data; 77 ndlp = rdata->pnode; 78 79 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 80 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 81 printk(KERN_ERR "Cannot find remote node" 82 " to terminate I/O Data x%x\n", 83 rport->port_id); 84 return; 85 } 86 87 phba = ndlp->phba; 88 89 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 90 "rport terminate: sid:x%x did:x%x flg:x%x", 91 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 92 93 if (ndlp->nlp_sid != NLP_NO_SID) { 94 lpfc_sli_abort_iocb(ndlp->vport, 95 &phba->sli.ring[phba->sli.fcp_ring], 96 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 97 } 98 } 99 100 /* 101 * This function will be called when dev_loss_tmo fire. 102 */ 103 void 104 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 105 { 106 struct lpfc_rport_data *rdata; 107 struct lpfc_nodelist * ndlp; 108 struct lpfc_vport *vport; 109 struct Scsi_Host *shost; 110 struct lpfc_hba *phba; 111 struct lpfc_work_evt *evtp; 112 int put_node; 113 int put_rport; 114 115 rdata = rport->dd_data; 116 ndlp = rdata->pnode; 117 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 118 return; 119 120 vport = ndlp->vport; 121 phba = vport->phba; 122 123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 124 "rport devlosscb: sid:x%x did:x%x flg:x%x", 125 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 126 127 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 128 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 129 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 130 131 /* Don't defer this if we are in the process of deleting the vport 132 * or unloading the driver. The unload will cleanup the node 133 * appropriately we just need to cleanup the ndlp rport info here. 134 */ 135 if (vport->load_flag & FC_UNLOADING) { 136 put_node = rdata->pnode != NULL; 137 put_rport = ndlp->rport != NULL; 138 rdata->pnode = NULL; 139 ndlp->rport = NULL; 140 if (put_node) 141 lpfc_nlp_put(ndlp); 142 if (put_rport) 143 put_device(&rport->dev); 144 return; 145 } 146 147 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 148 return; 149 150 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 151 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 152 "6789 rport name %llx != node port name %llx", 153 rport->port_name, 154 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 155 156 evtp = &ndlp->dev_loss_evt; 157 158 if (!list_empty(&evtp->evt_listp)) { 159 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 160 "6790 rport name %llx dev_loss_evt pending", 161 rport->port_name); 162 return; 163 } 164 165 shost = lpfc_shost_from_vport(vport); 166 spin_lock_irq(shost->host_lock); 167 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 168 spin_unlock_irq(shost->host_lock); 169 170 /* We need to hold the node by incrementing the reference 171 * count until this queued work is done 172 */ 173 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 174 175 spin_lock_irq(&phba->hbalock); 176 if (evtp->evt_arg1) { 177 evtp->evt = LPFC_EVT_DEV_LOSS; 178 list_add_tail(&evtp->evt_listp, &phba->work_list); 179 lpfc_worker_wake_up(phba); 180 } 181 spin_unlock_irq(&phba->hbalock); 182 183 return; 184 } 185 186 /** 187 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 188 * @ndlp: Pointer to remote node object. 189 * 190 * This function is called from the worker thread when devloss timeout timer 191 * expires. For SLI4 host, this routine shall return 1 when at lease one 192 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 193 * routine shall return 0 when there is no remote node is still in use of FCF 194 * when devloss timeout happened to this @ndlp. 195 **/ 196 static int 197 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 198 { 199 struct lpfc_rport_data *rdata; 200 struct fc_rport *rport; 201 struct lpfc_vport *vport; 202 struct lpfc_hba *phba; 203 struct Scsi_Host *shost; 204 uint8_t *name; 205 int put_node; 206 int warn_on = 0; 207 int fcf_inuse = 0; 208 209 rport = ndlp->rport; 210 vport = ndlp->vport; 211 shost = lpfc_shost_from_vport(vport); 212 213 spin_lock_irq(shost->host_lock); 214 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 215 spin_unlock_irq(shost->host_lock); 216 217 if (!rport) 218 return fcf_inuse; 219 220 name = (uint8_t *) &ndlp->nlp_portname; 221 phba = vport->phba; 222 223 if (phba->sli_rev == LPFC_SLI_REV4) 224 fcf_inuse = lpfc_fcf_inuse(phba); 225 226 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 227 "rport devlosstmo:did:x%x type:x%x id:x%x", 228 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 229 230 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 231 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 232 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 233 234 /* 235 * lpfc_nlp_remove if reached with dangling rport drops the 236 * reference. To make sure that does not happen clear rport 237 * pointer in ndlp before lpfc_nlp_put. 238 */ 239 rdata = rport->dd_data; 240 241 /* Don't defer this if we are in the process of deleting the vport 242 * or unloading the driver. The unload will cleanup the node 243 * appropriately we just need to cleanup the ndlp rport info here. 244 */ 245 if (vport->load_flag & FC_UNLOADING) { 246 if (ndlp->nlp_sid != NLP_NO_SID) { 247 /* flush the target */ 248 lpfc_sli_abort_iocb(vport, 249 &phba->sli.ring[phba->sli.fcp_ring], 250 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 251 } 252 put_node = rdata->pnode != NULL; 253 rdata->pnode = NULL; 254 ndlp->rport = NULL; 255 if (put_node) 256 lpfc_nlp_put(ndlp); 257 put_device(&rport->dev); 258 259 return fcf_inuse; 260 } 261 262 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 263 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 264 "0284 Devloss timeout Ignored on " 265 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 266 "NPort x%x\n", 267 *name, *(name+1), *(name+2), *(name+3), 268 *(name+4), *(name+5), *(name+6), *(name+7), 269 ndlp->nlp_DID); 270 return fcf_inuse; 271 } 272 273 put_node = rdata->pnode != NULL; 274 rdata->pnode = NULL; 275 ndlp->rport = NULL; 276 if (put_node) 277 lpfc_nlp_put(ndlp); 278 put_device(&rport->dev); 279 280 if (ndlp->nlp_type & NLP_FABRIC) 281 return fcf_inuse; 282 283 if (ndlp->nlp_sid != NLP_NO_SID) { 284 warn_on = 1; 285 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 286 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 287 } 288 289 if (warn_on) { 290 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 291 "0203 Devloss timeout on " 292 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 293 "NPort x%06x Data: x%x x%x x%x\n", 294 *name, *(name+1), *(name+2), *(name+3), 295 *(name+4), *(name+5), *(name+6), *(name+7), 296 ndlp->nlp_DID, ndlp->nlp_flag, 297 ndlp->nlp_state, ndlp->nlp_rpi); 298 } else { 299 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 300 "0204 Devloss timeout on " 301 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 302 "NPort x%06x Data: x%x x%x x%x\n", 303 *name, *(name+1), *(name+2), *(name+3), 304 *(name+4), *(name+5), *(name+6), *(name+7), 305 ndlp->nlp_DID, ndlp->nlp_flag, 306 ndlp->nlp_state, ndlp->nlp_rpi); 307 } 308 309 if (!(vport->load_flag & FC_UNLOADING) && 310 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 311 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 312 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 313 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 314 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 315 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 316 317 return fcf_inuse; 318 } 319 320 /** 321 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 322 * @phba: Pointer to hba context object. 323 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 324 * @nlp_did: remote node identifer with devloss timeout. 325 * 326 * This function is called from the worker thread after invoking devloss 327 * timeout handler and releasing the reference count for the ndlp with 328 * which the devloss timeout was handled for SLI4 host. For the devloss 329 * timeout of the last remote node which had been in use of FCF, when this 330 * routine is invoked, it shall be guaranteed that none of the remote are 331 * in-use of FCF. When devloss timeout to the last remote using the FCF, 332 * if the FIP engine is neither in FCF table scan process nor roundrobin 333 * failover process, the in-use FCF shall be unregistered. If the FIP 334 * engine is in FCF discovery process, the devloss timeout state shall 335 * be set for either the FCF table scan process or roundrobin failover 336 * process to unregister the in-use FCF. 337 **/ 338 static void 339 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 340 uint32_t nlp_did) 341 { 342 /* If devloss timeout happened to a remote node when FCF had no 343 * longer been in-use, do nothing. 344 */ 345 if (!fcf_inuse) 346 return; 347 348 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 349 spin_lock_irq(&phba->hbalock); 350 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 351 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 352 spin_unlock_irq(&phba->hbalock); 353 return; 354 } 355 phba->hba_flag |= HBA_DEVLOSS_TMO; 356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 357 "2847 Last remote node (x%x) using " 358 "FCF devloss tmo\n", nlp_did); 359 } 360 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 361 spin_unlock_irq(&phba->hbalock); 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2868 Devloss tmo to FCF rediscovery " 364 "in progress\n"); 365 return; 366 } 367 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 368 spin_unlock_irq(&phba->hbalock); 369 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 370 "2869 Devloss tmo to idle FIP engine, " 371 "unreg in-use FCF and rescan.\n"); 372 /* Unregister in-use FCF and rescan */ 373 lpfc_unregister_fcf_rescan(phba); 374 return; 375 } 376 spin_unlock_irq(&phba->hbalock); 377 if (phba->hba_flag & FCF_TS_INPROG) 378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 379 "2870 FCF table scan in progress\n"); 380 if (phba->hba_flag & FCF_RR_INPROG) 381 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 382 "2871 FLOGI roundrobin FCF failover " 383 "in progress\n"); 384 } 385 lpfc_unregister_unused_fcf(phba); 386 } 387 388 /** 389 * lpfc_alloc_fast_evt - Allocates data structure for posting event 390 * @phba: Pointer to hba context object. 391 * 392 * This function is called from the functions which need to post 393 * events from interrupt context. This function allocates data 394 * structure required for posting event. It also keeps track of 395 * number of events pending and prevent event storm when there are 396 * too many events. 397 **/ 398 struct lpfc_fast_path_event * 399 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 400 struct lpfc_fast_path_event *ret; 401 402 /* If there are lot of fast event do not exhaust memory due to this */ 403 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 404 return NULL; 405 406 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 407 GFP_ATOMIC); 408 if (ret) { 409 atomic_inc(&phba->fast_event_count); 410 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 411 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 412 } 413 return ret; 414 } 415 416 /** 417 * lpfc_free_fast_evt - Frees event data structure 418 * @phba: Pointer to hba context object. 419 * @evt: Event object which need to be freed. 420 * 421 * This function frees the data structure required for posting 422 * events. 423 **/ 424 void 425 lpfc_free_fast_evt(struct lpfc_hba *phba, 426 struct lpfc_fast_path_event *evt) { 427 428 atomic_dec(&phba->fast_event_count); 429 kfree(evt); 430 } 431 432 /** 433 * lpfc_send_fastpath_evt - Posts events generated from fast path 434 * @phba: Pointer to hba context object. 435 * @evtp: Event data structure. 436 * 437 * This function is called from worker thread, when the interrupt 438 * context need to post an event. This function posts the event 439 * to fc transport netlink interface. 440 **/ 441 static void 442 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 443 struct lpfc_work_evt *evtp) 444 { 445 unsigned long evt_category, evt_sub_category; 446 struct lpfc_fast_path_event *fast_evt_data; 447 char *evt_data; 448 uint32_t evt_data_size; 449 struct Scsi_Host *shost; 450 451 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 452 work_evt); 453 454 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 455 evt_sub_category = (unsigned long) fast_evt_data->un. 456 fabric_evt.subcategory; 457 shost = lpfc_shost_from_vport(fast_evt_data->vport); 458 if (evt_category == FC_REG_FABRIC_EVENT) { 459 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 460 evt_data = (char *) &fast_evt_data->un.read_check_error; 461 evt_data_size = sizeof(fast_evt_data->un. 462 read_check_error); 463 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 464 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 465 evt_data = (char *) &fast_evt_data->un.fabric_evt; 466 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 467 } else { 468 lpfc_free_fast_evt(phba, fast_evt_data); 469 return; 470 } 471 } else if (evt_category == FC_REG_SCSI_EVENT) { 472 switch (evt_sub_category) { 473 case LPFC_EVENT_QFULL: 474 case LPFC_EVENT_DEVBSY: 475 evt_data = (char *) &fast_evt_data->un.scsi_evt; 476 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 477 break; 478 case LPFC_EVENT_CHECK_COND: 479 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 480 evt_data_size = sizeof(fast_evt_data->un. 481 check_cond_evt); 482 break; 483 case LPFC_EVENT_VARQUEDEPTH: 484 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 485 evt_data_size = sizeof(fast_evt_data->un. 486 queue_depth_evt); 487 break; 488 default: 489 lpfc_free_fast_evt(phba, fast_evt_data); 490 return; 491 } 492 } else { 493 lpfc_free_fast_evt(phba, fast_evt_data); 494 return; 495 } 496 497 fc_host_post_vendor_event(shost, 498 fc_get_event_number(), 499 evt_data_size, 500 evt_data, 501 LPFC_NL_VENDOR_ID); 502 503 lpfc_free_fast_evt(phba, fast_evt_data); 504 return; 505 } 506 507 static void 508 lpfc_work_list_done(struct lpfc_hba *phba) 509 { 510 struct lpfc_work_evt *evtp = NULL; 511 struct lpfc_nodelist *ndlp; 512 int free_evt; 513 int fcf_inuse; 514 uint32_t nlp_did; 515 516 spin_lock_irq(&phba->hbalock); 517 while (!list_empty(&phba->work_list)) { 518 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 519 evt_listp); 520 spin_unlock_irq(&phba->hbalock); 521 free_evt = 1; 522 switch (evtp->evt) { 523 case LPFC_EVT_ELS_RETRY: 524 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 525 lpfc_els_retry_delay_handler(ndlp); 526 free_evt = 0; /* evt is part of ndlp */ 527 /* decrement the node reference count held 528 * for this queued work 529 */ 530 lpfc_nlp_put(ndlp); 531 break; 532 case LPFC_EVT_DEV_LOSS: 533 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 534 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 535 free_evt = 0; 536 /* decrement the node reference count held for 537 * this queued work 538 */ 539 nlp_did = ndlp->nlp_DID; 540 lpfc_nlp_put(ndlp); 541 if (phba->sli_rev == LPFC_SLI_REV4) 542 lpfc_sli4_post_dev_loss_tmo_handler(phba, 543 fcf_inuse, 544 nlp_did); 545 break; 546 case LPFC_EVT_ONLINE: 547 if (phba->link_state < LPFC_LINK_DOWN) 548 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 549 else 550 *(int *) (evtp->evt_arg1) = 0; 551 complete((struct completion *)(evtp->evt_arg2)); 552 break; 553 case LPFC_EVT_OFFLINE_PREP: 554 if (phba->link_state >= LPFC_LINK_DOWN) 555 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 556 *(int *)(evtp->evt_arg1) = 0; 557 complete((struct completion *)(evtp->evt_arg2)); 558 break; 559 case LPFC_EVT_OFFLINE: 560 lpfc_offline(phba); 561 lpfc_sli_brdrestart(phba); 562 *(int *)(evtp->evt_arg1) = 563 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 564 lpfc_unblock_mgmt_io(phba); 565 complete((struct completion *)(evtp->evt_arg2)); 566 break; 567 case LPFC_EVT_WARM_START: 568 lpfc_offline(phba); 569 lpfc_reset_barrier(phba); 570 lpfc_sli_brdreset(phba); 571 lpfc_hba_down_post(phba); 572 *(int *)(evtp->evt_arg1) = 573 lpfc_sli_brdready(phba, HS_MBRDY); 574 lpfc_unblock_mgmt_io(phba); 575 complete((struct completion *)(evtp->evt_arg2)); 576 break; 577 case LPFC_EVT_KILL: 578 lpfc_offline(phba); 579 *(int *)(evtp->evt_arg1) 580 = (phba->pport->stopped) 581 ? 0 : lpfc_sli_brdkill(phba); 582 lpfc_unblock_mgmt_io(phba); 583 complete((struct completion *)(evtp->evt_arg2)); 584 break; 585 case LPFC_EVT_FASTPATH_MGMT_EVT: 586 lpfc_send_fastpath_evt(phba, evtp); 587 free_evt = 0; 588 break; 589 case LPFC_EVT_RESET_HBA: 590 if (!(phba->pport->load_flag & FC_UNLOADING)) 591 lpfc_reset_hba(phba); 592 break; 593 } 594 if (free_evt) 595 kfree(evtp); 596 spin_lock_irq(&phba->hbalock); 597 } 598 spin_unlock_irq(&phba->hbalock); 599 600 } 601 602 static void 603 lpfc_work_done(struct lpfc_hba *phba) 604 { 605 struct lpfc_sli_ring *pring; 606 uint32_t ha_copy, status, control, work_port_events; 607 struct lpfc_vport **vports; 608 struct lpfc_vport *vport; 609 int i; 610 611 spin_lock_irq(&phba->hbalock); 612 ha_copy = phba->work_ha; 613 phba->work_ha = 0; 614 spin_unlock_irq(&phba->hbalock); 615 616 /* First, try to post the next mailbox command to SLI4 device */ 617 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 618 lpfc_sli4_post_async_mbox(phba); 619 620 if (ha_copy & HA_ERATT) 621 /* Handle the error attention event */ 622 lpfc_handle_eratt(phba); 623 624 if (ha_copy & HA_MBATT) 625 lpfc_sli_handle_mb_event(phba); 626 627 if (ha_copy & HA_LATT) 628 lpfc_handle_latt(phba); 629 630 /* Process SLI4 events */ 631 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 632 if (phba->hba_flag & HBA_RRQ_ACTIVE) 633 lpfc_handle_rrq_active(phba); 634 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 635 lpfc_sli4_fcp_xri_abort_event_proc(phba); 636 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 637 lpfc_sli4_els_xri_abort_event_proc(phba); 638 if (phba->hba_flag & ASYNC_EVENT) 639 lpfc_sli4_async_event_proc(phba); 640 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 641 spin_lock_irq(&phba->hbalock); 642 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 643 spin_unlock_irq(&phba->hbalock); 644 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 645 } 646 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 647 lpfc_sli4_fcf_redisc_event_proc(phba); 648 } 649 650 vports = lpfc_create_vport_work_array(phba); 651 if (vports != NULL) 652 for (i = 0; i <= phba->max_vports; i++) { 653 /* 654 * We could have no vports in array if unloading, so if 655 * this happens then just use the pport 656 */ 657 if (vports[i] == NULL && i == 0) 658 vport = phba->pport; 659 else 660 vport = vports[i]; 661 if (vport == NULL) 662 break; 663 spin_lock_irq(&vport->work_port_lock); 664 work_port_events = vport->work_port_events; 665 vport->work_port_events &= ~work_port_events; 666 spin_unlock_irq(&vport->work_port_lock); 667 if (work_port_events & WORKER_DISC_TMO) 668 lpfc_disc_timeout_handler(vport); 669 if (work_port_events & WORKER_ELS_TMO) 670 lpfc_els_timeout_handler(vport); 671 if (work_port_events & WORKER_HB_TMO) 672 lpfc_hb_timeout_handler(phba); 673 if (work_port_events & WORKER_MBOX_TMO) 674 lpfc_mbox_timeout_handler(phba); 675 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 676 lpfc_unblock_fabric_iocbs(phba); 677 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 678 lpfc_ramp_down_queue_handler(phba); 679 if (work_port_events & WORKER_DELAYED_DISC_TMO) 680 lpfc_delayed_disc_timeout_handler(vport); 681 } 682 lpfc_destroy_vport_work_array(phba, vports); 683 684 pring = &phba->sli.ring[LPFC_ELS_RING]; 685 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 686 status >>= (4*LPFC_ELS_RING); 687 if ((status & HA_RXMASK) || 688 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 689 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 690 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 691 pring->flag |= LPFC_DEFERRED_RING_EVENT; 692 /* Set the lpfc data pending flag */ 693 set_bit(LPFC_DATA_READY, &phba->data_flags); 694 } else { 695 if (phba->link_state >= LPFC_LINK_UP) { 696 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 697 lpfc_sli_handle_slow_ring_event(phba, pring, 698 (status & 699 HA_RXMASK)); 700 } 701 } 702 if ((phba->sli_rev == LPFC_SLI_REV4) && 703 (!list_empty(&pring->txq))) 704 lpfc_drain_txq(phba); 705 /* 706 * Turn on Ring interrupts 707 */ 708 if (phba->sli_rev <= LPFC_SLI_REV3) { 709 spin_lock_irq(&phba->hbalock); 710 control = readl(phba->HCregaddr); 711 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 712 lpfc_debugfs_slow_ring_trc(phba, 713 "WRK Enable ring: cntl:x%x hacopy:x%x", 714 control, ha_copy, 0); 715 716 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 717 writel(control, phba->HCregaddr); 718 readl(phba->HCregaddr); /* flush */ 719 } else { 720 lpfc_debugfs_slow_ring_trc(phba, 721 "WRK Ring ok: cntl:x%x hacopy:x%x", 722 control, ha_copy, 0); 723 } 724 spin_unlock_irq(&phba->hbalock); 725 } 726 } 727 lpfc_work_list_done(phba); 728 } 729 730 int 731 lpfc_do_work(void *p) 732 { 733 struct lpfc_hba *phba = p; 734 int rc; 735 736 set_user_nice(current, MIN_NICE); 737 current->flags |= PF_NOFREEZE; 738 phba->data_flags = 0; 739 740 while (!kthread_should_stop()) { 741 /* wait and check worker queue activities */ 742 rc = wait_event_interruptible(phba->work_waitq, 743 (test_and_clear_bit(LPFC_DATA_READY, 744 &phba->data_flags) 745 || kthread_should_stop())); 746 /* Signal wakeup shall terminate the worker thread */ 747 if (rc) { 748 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 749 "0433 Wakeup on signal: rc=x%x\n", rc); 750 break; 751 } 752 753 /* Attend pending lpfc data processing */ 754 lpfc_work_done(phba); 755 } 756 phba->worker_thread = NULL; 757 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 758 "0432 Worker thread stopped.\n"); 759 return 0; 760 } 761 762 /* 763 * This is only called to handle FC worker events. Since this a rare 764 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 765 * embedding it in the IOCB. 766 */ 767 int 768 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 769 uint32_t evt) 770 { 771 struct lpfc_work_evt *evtp; 772 unsigned long flags; 773 774 /* 775 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 776 * be queued to worker thread for processing 777 */ 778 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 779 if (!evtp) 780 return 0; 781 782 evtp->evt_arg1 = arg1; 783 evtp->evt_arg2 = arg2; 784 evtp->evt = evt; 785 786 spin_lock_irqsave(&phba->hbalock, flags); 787 list_add_tail(&evtp->evt_listp, &phba->work_list); 788 spin_unlock_irqrestore(&phba->hbalock, flags); 789 790 lpfc_worker_wake_up(phba); 791 792 return 1; 793 } 794 795 void 796 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 797 { 798 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 799 struct lpfc_hba *phba = vport->phba; 800 struct lpfc_nodelist *ndlp, *next_ndlp; 801 802 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 803 if (!NLP_CHK_NODE_ACT(ndlp)) 804 continue; 805 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 806 continue; 807 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 808 ((vport->port_type == LPFC_NPIV_PORT) && 809 (ndlp->nlp_DID == NameServer_DID))) 810 lpfc_unreg_rpi(vport, ndlp); 811 812 /* Leave Fabric nodes alone on link down */ 813 if ((phba->sli_rev < LPFC_SLI_REV4) && 814 (!remove && ndlp->nlp_type & NLP_FABRIC)) 815 continue; 816 lpfc_disc_state_machine(vport, ndlp, NULL, 817 remove 818 ? NLP_EVT_DEVICE_RM 819 : NLP_EVT_DEVICE_RECOVERY); 820 } 821 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 822 if (phba->sli_rev == LPFC_SLI_REV4) 823 lpfc_sli4_unreg_all_rpis(vport); 824 lpfc_mbx_unreg_vpi(vport); 825 spin_lock_irq(shost->host_lock); 826 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 827 spin_unlock_irq(shost->host_lock); 828 } 829 } 830 831 void 832 lpfc_port_link_failure(struct lpfc_vport *vport) 833 { 834 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 835 836 /* Cleanup any outstanding received buffers */ 837 lpfc_cleanup_rcv_buffers(vport); 838 839 /* Cleanup any outstanding RSCN activity */ 840 lpfc_els_flush_rscn(vport); 841 842 /* Cleanup any outstanding ELS commands */ 843 lpfc_els_flush_cmd(vport); 844 845 lpfc_cleanup_rpis(vport, 0); 846 847 /* Turn off discovery timer if its running */ 848 lpfc_can_disctmo(vport); 849 } 850 851 void 852 lpfc_linkdown_port(struct lpfc_vport *vport) 853 { 854 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 855 856 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 857 858 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 859 "Link Down: state:x%x rtry:x%x flg:x%x", 860 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 861 862 lpfc_port_link_failure(vport); 863 864 /* Stop delayed Nport discovery */ 865 spin_lock_irq(shost->host_lock); 866 vport->fc_flag &= ~FC_DISC_DELAYED; 867 spin_unlock_irq(shost->host_lock); 868 del_timer_sync(&vport->delayed_disc_tmo); 869 } 870 871 int 872 lpfc_linkdown(struct lpfc_hba *phba) 873 { 874 struct lpfc_vport *vport = phba->pport; 875 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 876 struct lpfc_vport **vports; 877 LPFC_MBOXQ_t *mb; 878 int i; 879 880 if (phba->link_state == LPFC_LINK_DOWN) 881 return 0; 882 883 /* Block all SCSI stack I/Os */ 884 lpfc_scsi_dev_block(phba); 885 886 spin_lock_irq(&phba->hbalock); 887 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 888 spin_unlock_irq(&phba->hbalock); 889 if (phba->link_state > LPFC_LINK_DOWN) { 890 phba->link_state = LPFC_LINK_DOWN; 891 spin_lock_irq(shost->host_lock); 892 phba->pport->fc_flag &= ~FC_LBIT; 893 spin_unlock_irq(shost->host_lock); 894 } 895 vports = lpfc_create_vport_work_array(phba); 896 if (vports != NULL) 897 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 898 /* Issue a LINK DOWN event to all nodes */ 899 lpfc_linkdown_port(vports[i]); 900 } 901 lpfc_destroy_vport_work_array(phba, vports); 902 /* Clean up any firmware default rpi's */ 903 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 904 if (mb) { 905 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 906 mb->vport = vport; 907 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 908 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 909 == MBX_NOT_FINISHED) { 910 mempool_free(mb, phba->mbox_mem_pool); 911 } 912 } 913 914 /* Setup myDID for link up if we are in pt2pt mode */ 915 if (phba->pport->fc_flag & FC_PT2PT) { 916 phba->pport->fc_myDID = 0; 917 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 918 if (mb) { 919 lpfc_config_link(phba, mb); 920 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 921 mb->vport = vport; 922 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 923 == MBX_NOT_FINISHED) { 924 mempool_free(mb, phba->mbox_mem_pool); 925 } 926 } 927 spin_lock_irq(shost->host_lock); 928 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 929 spin_unlock_irq(shost->host_lock); 930 } 931 932 return 0; 933 } 934 935 static void 936 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 937 { 938 struct lpfc_nodelist *ndlp; 939 940 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 941 if (!NLP_CHK_NODE_ACT(ndlp)) 942 continue; 943 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 944 continue; 945 if (ndlp->nlp_type & NLP_FABRIC) { 946 /* On Linkup its safe to clean up the ndlp 947 * from Fabric connections. 948 */ 949 if (ndlp->nlp_DID != Fabric_DID) 950 lpfc_unreg_rpi(vport, ndlp); 951 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 952 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 953 /* Fail outstanding IO now since device is 954 * marked for PLOGI. 955 */ 956 lpfc_unreg_rpi(vport, ndlp); 957 } 958 } 959 } 960 961 static void 962 lpfc_linkup_port(struct lpfc_vport *vport) 963 { 964 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 965 struct lpfc_hba *phba = vport->phba; 966 967 if ((vport->load_flag & FC_UNLOADING) != 0) 968 return; 969 970 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 971 "Link Up: top:x%x speed:x%x flg:x%x", 972 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 973 974 /* If NPIV is not enabled, only bring the physical port up */ 975 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 976 (vport != phba->pport)) 977 return; 978 979 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 980 981 spin_lock_irq(shost->host_lock); 982 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 983 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 984 vport->fc_flag |= FC_NDISC_ACTIVE; 985 vport->fc_ns_retry = 0; 986 spin_unlock_irq(shost->host_lock); 987 988 if (vport->fc_flag & FC_LBIT) 989 lpfc_linkup_cleanup_nodes(vport); 990 991 } 992 993 static int 994 lpfc_linkup(struct lpfc_hba *phba) 995 { 996 struct lpfc_vport **vports; 997 int i; 998 999 phba->link_state = LPFC_LINK_UP; 1000 1001 /* Unblock fabric iocbs if they are blocked */ 1002 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1003 del_timer_sync(&phba->fabric_block_timer); 1004 1005 vports = lpfc_create_vport_work_array(phba); 1006 if (vports != NULL) 1007 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1008 lpfc_linkup_port(vports[i]); 1009 lpfc_destroy_vport_work_array(phba, vports); 1010 1011 return 0; 1012 } 1013 1014 /* 1015 * This routine handles processing a CLEAR_LA mailbox 1016 * command upon completion. It is setup in the LPFC_MBOXQ 1017 * as the completion routine when the command is 1018 * handed off to the SLI layer. 1019 */ 1020 static void 1021 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1022 { 1023 struct lpfc_vport *vport = pmb->vport; 1024 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1025 struct lpfc_sli *psli = &phba->sli; 1026 MAILBOX_t *mb = &pmb->u.mb; 1027 uint32_t control; 1028 1029 /* Since we don't do discovery right now, turn these off here */ 1030 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1031 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1032 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1033 1034 /* Check for error */ 1035 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1036 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1037 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1038 "0320 CLEAR_LA mbxStatus error x%x hba " 1039 "state x%x\n", 1040 mb->mbxStatus, vport->port_state); 1041 phba->link_state = LPFC_HBA_ERROR; 1042 goto out; 1043 } 1044 1045 if (vport->port_type == LPFC_PHYSICAL_PORT) 1046 phba->link_state = LPFC_HBA_READY; 1047 1048 spin_lock_irq(&phba->hbalock); 1049 psli->sli_flag |= LPFC_PROCESS_LA; 1050 control = readl(phba->HCregaddr); 1051 control |= HC_LAINT_ENA; 1052 writel(control, phba->HCregaddr); 1053 readl(phba->HCregaddr); /* flush */ 1054 spin_unlock_irq(&phba->hbalock); 1055 mempool_free(pmb, phba->mbox_mem_pool); 1056 return; 1057 1058 out: 1059 /* Device Discovery completes */ 1060 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1061 "0225 Device Discovery completes\n"); 1062 mempool_free(pmb, phba->mbox_mem_pool); 1063 1064 spin_lock_irq(shost->host_lock); 1065 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1066 spin_unlock_irq(shost->host_lock); 1067 1068 lpfc_can_disctmo(vport); 1069 1070 /* turn on Link Attention interrupts */ 1071 1072 spin_lock_irq(&phba->hbalock); 1073 psli->sli_flag |= LPFC_PROCESS_LA; 1074 control = readl(phba->HCregaddr); 1075 control |= HC_LAINT_ENA; 1076 writel(control, phba->HCregaddr); 1077 readl(phba->HCregaddr); /* flush */ 1078 spin_unlock_irq(&phba->hbalock); 1079 1080 return; 1081 } 1082 1083 1084 void 1085 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1086 { 1087 struct lpfc_vport *vport = pmb->vport; 1088 1089 if (pmb->u.mb.mbxStatus) 1090 goto out; 1091 1092 mempool_free(pmb, phba->mbox_mem_pool); 1093 1094 /* don't perform discovery for SLI4 loopback diagnostic test */ 1095 if ((phba->sli_rev == LPFC_SLI_REV4) && 1096 !(phba->hba_flag & HBA_FCOE_MODE) && 1097 (phba->link_flag & LS_LOOPBACK_MODE)) 1098 return; 1099 1100 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1101 vport->fc_flag & FC_PUBLIC_LOOP && 1102 !(vport->fc_flag & FC_LBIT)) { 1103 /* Need to wait for FAN - use discovery timer 1104 * for timeout. port_state is identically 1105 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1106 */ 1107 lpfc_set_disctmo(vport); 1108 return; 1109 } 1110 1111 /* Start discovery by sending a FLOGI. port_state is identically 1112 * LPFC_FLOGI while waiting for FLOGI cmpl 1113 */ 1114 if (vport->port_state != LPFC_FLOGI) 1115 lpfc_initial_flogi(vport); 1116 else if (vport->fc_flag & FC_PT2PT) 1117 lpfc_disc_start(vport); 1118 return; 1119 1120 out: 1121 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1122 "0306 CONFIG_LINK mbxStatus error x%x " 1123 "HBA state x%x\n", 1124 pmb->u.mb.mbxStatus, vport->port_state); 1125 mempool_free(pmb, phba->mbox_mem_pool); 1126 1127 lpfc_linkdown(phba); 1128 1129 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1130 "0200 CONFIG_LINK bad hba state x%x\n", 1131 vport->port_state); 1132 1133 lpfc_issue_clear_la(phba, vport); 1134 return; 1135 } 1136 1137 /** 1138 * lpfc_sli4_clear_fcf_rr_bmask 1139 * @phba pointer to the struct lpfc_hba for this port. 1140 * This fucnction resets the round robin bit mask and clears the 1141 * fcf priority list. The list deletions are done while holding the 1142 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1143 * from the lpfc_fcf_pri record. 1144 **/ 1145 void 1146 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1147 { 1148 struct lpfc_fcf_pri *fcf_pri; 1149 struct lpfc_fcf_pri *next_fcf_pri; 1150 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1151 spin_lock_irq(&phba->hbalock); 1152 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1153 &phba->fcf.fcf_pri_list, list) { 1154 list_del_init(&fcf_pri->list); 1155 fcf_pri->fcf_rec.flag = 0; 1156 } 1157 spin_unlock_irq(&phba->hbalock); 1158 } 1159 static void 1160 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1161 { 1162 struct lpfc_vport *vport = mboxq->vport; 1163 1164 if (mboxq->u.mb.mbxStatus) { 1165 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1166 "2017 REG_FCFI mbxStatus error x%x " 1167 "HBA state x%x\n", 1168 mboxq->u.mb.mbxStatus, vport->port_state); 1169 goto fail_out; 1170 } 1171 1172 /* Start FCoE discovery by sending a FLOGI. */ 1173 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1174 /* Set the FCFI registered flag */ 1175 spin_lock_irq(&phba->hbalock); 1176 phba->fcf.fcf_flag |= FCF_REGISTERED; 1177 spin_unlock_irq(&phba->hbalock); 1178 1179 /* If there is a pending FCoE event, restart FCF table scan. */ 1180 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1181 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1182 goto fail_out; 1183 1184 /* Mark successful completion of FCF table scan */ 1185 spin_lock_irq(&phba->hbalock); 1186 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1187 phba->hba_flag &= ~FCF_TS_INPROG; 1188 if (vport->port_state != LPFC_FLOGI) { 1189 phba->hba_flag |= FCF_RR_INPROG; 1190 spin_unlock_irq(&phba->hbalock); 1191 lpfc_issue_init_vfi(vport); 1192 goto out; 1193 } 1194 spin_unlock_irq(&phba->hbalock); 1195 goto out; 1196 1197 fail_out: 1198 spin_lock_irq(&phba->hbalock); 1199 phba->hba_flag &= ~FCF_RR_INPROG; 1200 spin_unlock_irq(&phba->hbalock); 1201 out: 1202 mempool_free(mboxq, phba->mbox_mem_pool); 1203 } 1204 1205 /** 1206 * lpfc_fab_name_match - Check if the fcf fabric name match. 1207 * @fab_name: pointer to fabric name. 1208 * @new_fcf_record: pointer to fcf record. 1209 * 1210 * This routine compare the fcf record's fabric name with provided 1211 * fabric name. If the fabric name are identical this function 1212 * returns 1 else return 0. 1213 **/ 1214 static uint32_t 1215 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1216 { 1217 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1218 return 0; 1219 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1220 return 0; 1221 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1222 return 0; 1223 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1224 return 0; 1225 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1226 return 0; 1227 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1228 return 0; 1229 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1230 return 0; 1231 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1232 return 0; 1233 return 1; 1234 } 1235 1236 /** 1237 * lpfc_sw_name_match - Check if the fcf switch name match. 1238 * @fab_name: pointer to fabric name. 1239 * @new_fcf_record: pointer to fcf record. 1240 * 1241 * This routine compare the fcf record's switch name with provided 1242 * switch name. If the switch name are identical this function 1243 * returns 1 else return 0. 1244 **/ 1245 static uint32_t 1246 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1247 { 1248 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1249 return 0; 1250 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1251 return 0; 1252 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1253 return 0; 1254 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1255 return 0; 1256 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1257 return 0; 1258 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1259 return 0; 1260 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1261 return 0; 1262 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1263 return 0; 1264 return 1; 1265 } 1266 1267 /** 1268 * lpfc_mac_addr_match - Check if the fcf mac address match. 1269 * @mac_addr: pointer to mac address. 1270 * @new_fcf_record: pointer to fcf record. 1271 * 1272 * This routine compare the fcf record's mac address with HBA's 1273 * FCF mac address. If the mac addresses are identical this function 1274 * returns 1 else return 0. 1275 **/ 1276 static uint32_t 1277 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1278 { 1279 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1280 return 0; 1281 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1282 return 0; 1283 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1284 return 0; 1285 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1286 return 0; 1287 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1288 return 0; 1289 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1290 return 0; 1291 return 1; 1292 } 1293 1294 static bool 1295 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1296 { 1297 return (curr_vlan_id == new_vlan_id); 1298 } 1299 1300 /** 1301 * lpfc_update_fcf_record - Update driver fcf record 1302 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1303 * @phba: pointer to lpfc hba data structure. 1304 * @fcf_index: Index for the lpfc_fcf_record. 1305 * @new_fcf_record: pointer to hba fcf record. 1306 * 1307 * This routine updates the driver FCF priority record from the new HBA FCF 1308 * record. This routine is called with the host lock held. 1309 **/ 1310 static void 1311 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1312 struct fcf_record *new_fcf_record 1313 ) 1314 { 1315 struct lpfc_fcf_pri *fcf_pri; 1316 1317 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1318 fcf_pri->fcf_rec.fcf_index = fcf_index; 1319 /* FCF record priority */ 1320 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1321 1322 } 1323 1324 /** 1325 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1326 * @fcf: pointer to driver fcf record. 1327 * @new_fcf_record: pointer to fcf record. 1328 * 1329 * This routine copies the FCF information from the FCF 1330 * record to lpfc_hba data structure. 1331 **/ 1332 static void 1333 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1334 struct fcf_record *new_fcf_record) 1335 { 1336 /* Fabric name */ 1337 fcf_rec->fabric_name[0] = 1338 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1339 fcf_rec->fabric_name[1] = 1340 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1341 fcf_rec->fabric_name[2] = 1342 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1343 fcf_rec->fabric_name[3] = 1344 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1345 fcf_rec->fabric_name[4] = 1346 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1347 fcf_rec->fabric_name[5] = 1348 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1349 fcf_rec->fabric_name[6] = 1350 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1351 fcf_rec->fabric_name[7] = 1352 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1353 /* Mac address */ 1354 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1355 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1356 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1357 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1358 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1359 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1360 /* FCF record index */ 1361 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1362 /* FCF record priority */ 1363 fcf_rec->priority = new_fcf_record->fip_priority; 1364 /* Switch name */ 1365 fcf_rec->switch_name[0] = 1366 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1367 fcf_rec->switch_name[1] = 1368 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1369 fcf_rec->switch_name[2] = 1370 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1371 fcf_rec->switch_name[3] = 1372 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1373 fcf_rec->switch_name[4] = 1374 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1375 fcf_rec->switch_name[5] = 1376 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1377 fcf_rec->switch_name[6] = 1378 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1379 fcf_rec->switch_name[7] = 1380 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1381 } 1382 1383 /** 1384 * lpfc_update_fcf_record - Update driver fcf record 1385 * @phba: pointer to lpfc hba data structure. 1386 * @fcf_rec: pointer to driver fcf record. 1387 * @new_fcf_record: pointer to hba fcf record. 1388 * @addr_mode: address mode to be set to the driver fcf record. 1389 * @vlan_id: vlan tag to be set to the driver fcf record. 1390 * @flag: flag bits to be set to the driver fcf record. 1391 * 1392 * This routine updates the driver FCF record from the new HBA FCF record 1393 * together with the address mode, vlan_id, and other informations. This 1394 * routine is called with the host lock held. 1395 **/ 1396 static void 1397 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1398 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1399 uint16_t vlan_id, uint32_t flag) 1400 { 1401 /* Copy the fields from the HBA's FCF record */ 1402 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1403 /* Update other fields of driver FCF record */ 1404 fcf_rec->addr_mode = addr_mode; 1405 fcf_rec->vlan_id = vlan_id; 1406 fcf_rec->flag |= (flag | RECORD_VALID); 1407 __lpfc_update_fcf_record_pri(phba, 1408 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1409 new_fcf_record); 1410 } 1411 1412 /** 1413 * lpfc_register_fcf - Register the FCF with hba. 1414 * @phba: pointer to lpfc hba data structure. 1415 * 1416 * This routine issues a register fcfi mailbox command to register 1417 * the fcf with HBA. 1418 **/ 1419 static void 1420 lpfc_register_fcf(struct lpfc_hba *phba) 1421 { 1422 LPFC_MBOXQ_t *fcf_mbxq; 1423 int rc; 1424 1425 spin_lock_irq(&phba->hbalock); 1426 /* If the FCF is not available do nothing. */ 1427 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1428 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1429 spin_unlock_irq(&phba->hbalock); 1430 return; 1431 } 1432 1433 /* The FCF is already registered, start discovery */ 1434 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1435 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1436 phba->hba_flag &= ~FCF_TS_INPROG; 1437 if (phba->pport->port_state != LPFC_FLOGI && 1438 phba->pport->fc_flag & FC_FABRIC) { 1439 phba->hba_flag |= FCF_RR_INPROG; 1440 spin_unlock_irq(&phba->hbalock); 1441 lpfc_initial_flogi(phba->pport); 1442 return; 1443 } 1444 spin_unlock_irq(&phba->hbalock); 1445 return; 1446 } 1447 spin_unlock_irq(&phba->hbalock); 1448 1449 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1450 if (!fcf_mbxq) { 1451 spin_lock_irq(&phba->hbalock); 1452 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1453 spin_unlock_irq(&phba->hbalock); 1454 return; 1455 } 1456 1457 lpfc_reg_fcfi(phba, fcf_mbxq); 1458 fcf_mbxq->vport = phba->pport; 1459 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1460 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1461 if (rc == MBX_NOT_FINISHED) { 1462 spin_lock_irq(&phba->hbalock); 1463 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1464 spin_unlock_irq(&phba->hbalock); 1465 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1466 } 1467 1468 return; 1469 } 1470 1471 /** 1472 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1473 * @phba: pointer to lpfc hba data structure. 1474 * @new_fcf_record: pointer to fcf record. 1475 * @boot_flag: Indicates if this record used by boot bios. 1476 * @addr_mode: The address mode to be used by this FCF 1477 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1478 * 1479 * This routine compare the fcf record with connect list obtained from the 1480 * config region to decide if this FCF can be used for SAN discovery. It returns 1481 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1482 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1483 * is used by boot bios and addr_mode will indicate the addressing mode to be 1484 * used for this FCF when the function returns. 1485 * If the FCF record need to be used with a particular vlan id, the vlan is 1486 * set in the vlan_id on return of the function. If not VLAN tagging need to 1487 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1488 **/ 1489 static int 1490 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1491 struct fcf_record *new_fcf_record, 1492 uint32_t *boot_flag, uint32_t *addr_mode, 1493 uint16_t *vlan_id) 1494 { 1495 struct lpfc_fcf_conn_entry *conn_entry; 1496 int i, j, fcf_vlan_id = 0; 1497 1498 /* Find the lowest VLAN id in the FCF record */ 1499 for (i = 0; i < 512; i++) { 1500 if (new_fcf_record->vlan_bitmap[i]) { 1501 fcf_vlan_id = i * 8; 1502 j = 0; 1503 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1504 j++; 1505 fcf_vlan_id++; 1506 } 1507 break; 1508 } 1509 } 1510 1511 /* FCF not valid/available or solicitation in progress */ 1512 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1513 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1514 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1515 return 0; 1516 1517 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1518 *boot_flag = 0; 1519 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1520 new_fcf_record); 1521 if (phba->valid_vlan) 1522 *vlan_id = phba->vlan_id; 1523 else 1524 *vlan_id = LPFC_FCOE_NULL_VID; 1525 return 1; 1526 } 1527 1528 /* 1529 * If there are no FCF connection table entry, driver connect to all 1530 * FCFs. 1531 */ 1532 if (list_empty(&phba->fcf_conn_rec_list)) { 1533 *boot_flag = 0; 1534 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1535 new_fcf_record); 1536 1537 /* 1538 * When there are no FCF connect entries, use driver's default 1539 * addressing mode - FPMA. 1540 */ 1541 if (*addr_mode & LPFC_FCF_FPMA) 1542 *addr_mode = LPFC_FCF_FPMA; 1543 1544 /* If FCF record report a vlan id use that vlan id */ 1545 if (fcf_vlan_id) 1546 *vlan_id = fcf_vlan_id; 1547 else 1548 *vlan_id = LPFC_FCOE_NULL_VID; 1549 return 1; 1550 } 1551 1552 list_for_each_entry(conn_entry, 1553 &phba->fcf_conn_rec_list, list) { 1554 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1555 continue; 1556 1557 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1558 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1559 new_fcf_record)) 1560 continue; 1561 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1562 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1563 new_fcf_record)) 1564 continue; 1565 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1566 /* 1567 * If the vlan bit map does not have the bit set for the 1568 * vlan id to be used, then it is not a match. 1569 */ 1570 if (!(new_fcf_record->vlan_bitmap 1571 [conn_entry->conn_rec.vlan_tag / 8] & 1572 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1573 continue; 1574 } 1575 1576 /* 1577 * If connection record does not support any addressing mode, 1578 * skip the FCF record. 1579 */ 1580 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1581 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1582 continue; 1583 1584 /* 1585 * Check if the connection record specifies a required 1586 * addressing mode. 1587 */ 1588 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1589 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1590 1591 /* 1592 * If SPMA required but FCF not support this continue. 1593 */ 1594 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1595 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1596 new_fcf_record) & LPFC_FCF_SPMA)) 1597 continue; 1598 1599 /* 1600 * If FPMA required but FCF not support this continue. 1601 */ 1602 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1603 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1604 new_fcf_record) & LPFC_FCF_FPMA)) 1605 continue; 1606 } 1607 1608 /* 1609 * This fcf record matches filtering criteria. 1610 */ 1611 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1612 *boot_flag = 1; 1613 else 1614 *boot_flag = 0; 1615 1616 /* 1617 * If user did not specify any addressing mode, or if the 1618 * preferred addressing mode specified by user is not supported 1619 * by FCF, allow fabric to pick the addressing mode. 1620 */ 1621 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1622 new_fcf_record); 1623 /* 1624 * If the user specified a required address mode, assign that 1625 * address mode 1626 */ 1627 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1628 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1629 *addr_mode = (conn_entry->conn_rec.flags & 1630 FCFCNCT_AM_SPMA) ? 1631 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1632 /* 1633 * If the user specified a preferred address mode, use the 1634 * addr mode only if FCF support the addr_mode. 1635 */ 1636 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1637 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1638 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1639 (*addr_mode & LPFC_FCF_SPMA)) 1640 *addr_mode = LPFC_FCF_SPMA; 1641 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1642 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1643 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1644 (*addr_mode & LPFC_FCF_FPMA)) 1645 *addr_mode = LPFC_FCF_FPMA; 1646 1647 /* If matching connect list has a vlan id, use it */ 1648 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1649 *vlan_id = conn_entry->conn_rec.vlan_tag; 1650 /* 1651 * If no vlan id is specified in connect list, use the vlan id 1652 * in the FCF record 1653 */ 1654 else if (fcf_vlan_id) 1655 *vlan_id = fcf_vlan_id; 1656 else 1657 *vlan_id = LPFC_FCOE_NULL_VID; 1658 1659 return 1; 1660 } 1661 1662 return 0; 1663 } 1664 1665 /** 1666 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1667 * @phba: pointer to lpfc hba data structure. 1668 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1669 * 1670 * This function check if there is any fcoe event pending while driver 1671 * scan FCF entries. If there is any pending event, it will restart the 1672 * FCF saning and return 1 else return 0. 1673 */ 1674 int 1675 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1676 { 1677 /* 1678 * If the Link is up and no FCoE events while in the 1679 * FCF discovery, no need to restart FCF discovery. 1680 */ 1681 if ((phba->link_state >= LPFC_LINK_UP) && 1682 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1683 return 0; 1684 1685 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1686 "2768 Pending link or FCF event during current " 1687 "handling of the previous event: link_state:x%x, " 1688 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1689 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1690 phba->fcoe_eventtag); 1691 1692 spin_lock_irq(&phba->hbalock); 1693 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1694 spin_unlock_irq(&phba->hbalock); 1695 1696 if (phba->link_state >= LPFC_LINK_UP) { 1697 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1698 "2780 Restart FCF table scan due to " 1699 "pending FCF event:evt_tag_at_scan:x%x, " 1700 "evt_tag_current:x%x\n", 1701 phba->fcoe_eventtag_at_fcf_scan, 1702 phba->fcoe_eventtag); 1703 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1704 } else { 1705 /* 1706 * Do not continue FCF discovery and clear FCF_TS_INPROG 1707 * flag 1708 */ 1709 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1710 "2833 Stop FCF discovery process due to link " 1711 "state change (x%x)\n", phba->link_state); 1712 spin_lock_irq(&phba->hbalock); 1713 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1714 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1715 spin_unlock_irq(&phba->hbalock); 1716 } 1717 1718 /* Unregister the currently registered FCF if required */ 1719 if (unreg_fcf) { 1720 spin_lock_irq(&phba->hbalock); 1721 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1722 spin_unlock_irq(&phba->hbalock); 1723 lpfc_sli4_unregister_fcf(phba); 1724 } 1725 return 1; 1726 } 1727 1728 /** 1729 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1730 * @phba: pointer to lpfc hba data structure. 1731 * @fcf_cnt: number of eligible fcf record seen so far. 1732 * 1733 * This function makes an running random selection decision on FCF record to 1734 * use through a sequence of @fcf_cnt eligible FCF records with equal 1735 * probability. To perform integer manunipulation of random numbers with 1736 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1737 * from prandom_u32() are taken as the random random number generated. 1738 * 1739 * Returns true when outcome is for the newly read FCF record should be 1740 * chosen; otherwise, return false when outcome is for keeping the previously 1741 * chosen FCF record. 1742 **/ 1743 static bool 1744 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1745 { 1746 uint32_t rand_num; 1747 1748 /* Get 16-bit uniform random number */ 1749 rand_num = 0xFFFF & prandom_u32(); 1750 1751 /* Decision with probability 1/fcf_cnt */ 1752 if ((fcf_cnt * rand_num) < 0xFFFF) 1753 return true; 1754 else 1755 return false; 1756 } 1757 1758 /** 1759 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1760 * @phba: pointer to lpfc hba data structure. 1761 * @mboxq: pointer to mailbox object. 1762 * @next_fcf_index: pointer to holder of next fcf index. 1763 * 1764 * This routine parses the non-embedded fcf mailbox command by performing the 1765 * necessarily error checking, non-embedded read FCF record mailbox command 1766 * SGE parsing, and endianness swapping. 1767 * 1768 * Returns the pointer to the new FCF record in the non-embedded mailbox 1769 * command DMA memory if successfully, other NULL. 1770 */ 1771 static struct fcf_record * 1772 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1773 uint16_t *next_fcf_index) 1774 { 1775 void *virt_addr; 1776 struct lpfc_mbx_sge sge; 1777 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1778 uint32_t shdr_status, shdr_add_status, if_type; 1779 union lpfc_sli4_cfg_shdr *shdr; 1780 struct fcf_record *new_fcf_record; 1781 1782 /* Get the first SGE entry from the non-embedded DMA memory. This 1783 * routine only uses a single SGE. 1784 */ 1785 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1786 if (unlikely(!mboxq->sge_array)) { 1787 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1788 "2524 Failed to get the non-embedded SGE " 1789 "virtual address\n"); 1790 return NULL; 1791 } 1792 virt_addr = mboxq->sge_array->addr[0]; 1793 1794 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1795 lpfc_sli_pcimem_bcopy(shdr, shdr, 1796 sizeof(union lpfc_sli4_cfg_shdr)); 1797 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1798 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1799 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1800 if (shdr_status || shdr_add_status) { 1801 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1802 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1803 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1804 "2726 READ_FCF_RECORD Indicates empty " 1805 "FCF table.\n"); 1806 else 1807 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1808 "2521 READ_FCF_RECORD mailbox failed " 1809 "with status x%x add_status x%x, " 1810 "mbx\n", shdr_status, shdr_add_status); 1811 return NULL; 1812 } 1813 1814 /* Interpreting the returned information of the FCF record */ 1815 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1816 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1817 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1818 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1819 new_fcf_record = (struct fcf_record *)(virt_addr + 1820 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1821 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1822 offsetof(struct fcf_record, vlan_bitmap)); 1823 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1824 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1825 1826 return new_fcf_record; 1827 } 1828 1829 /** 1830 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1831 * @phba: pointer to lpfc hba data structure. 1832 * @fcf_record: pointer to the fcf record. 1833 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1834 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1835 * 1836 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1837 * enabled. 1838 **/ 1839 static void 1840 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1841 struct fcf_record *fcf_record, 1842 uint16_t vlan_id, 1843 uint16_t next_fcf_index) 1844 { 1845 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1846 "2764 READ_FCF_RECORD:\n" 1847 "\tFCF_Index : x%x\n" 1848 "\tFCF_Avail : x%x\n" 1849 "\tFCF_Valid : x%x\n" 1850 "\tFCF_SOL : x%x\n" 1851 "\tFIP_Priority : x%x\n" 1852 "\tMAC_Provider : x%x\n" 1853 "\tLowest VLANID : x%x\n" 1854 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1855 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1856 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1857 "\tNext_FCF_Index: x%x\n", 1858 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1859 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1860 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1861 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1862 fcf_record->fip_priority, 1863 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1864 vlan_id, 1865 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1866 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1867 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1868 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1869 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1870 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1871 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1872 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1873 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1874 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1875 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1876 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1877 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1878 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1879 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1880 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1881 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1882 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1883 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1884 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1885 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1886 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1887 next_fcf_index); 1888 } 1889 1890 /** 1891 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1892 * @phba: pointer to lpfc hba data structure. 1893 * @fcf_rec: pointer to an existing FCF record. 1894 * @new_fcf_record: pointer to a new FCF record. 1895 * @new_vlan_id: vlan id from the new FCF record. 1896 * 1897 * This function performs matching test of a new FCF record against an existing 1898 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1899 * will not be used as part of the FCF record matching criteria. 1900 * 1901 * Returns true if all the fields matching, otherwise returns false. 1902 */ 1903 static bool 1904 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1905 struct lpfc_fcf_rec *fcf_rec, 1906 struct fcf_record *new_fcf_record, 1907 uint16_t new_vlan_id) 1908 { 1909 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1910 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1911 return false; 1912 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1913 return false; 1914 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1915 return false; 1916 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1917 return false; 1918 if (fcf_rec->priority != new_fcf_record->fip_priority) 1919 return false; 1920 return true; 1921 } 1922 1923 /** 1924 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1925 * @vport: Pointer to vport object. 1926 * @fcf_index: index to next fcf. 1927 * 1928 * This function processing the roundrobin fcf failover to next fcf index. 1929 * When this function is invoked, there will be a current fcf registered 1930 * for flogi. 1931 * Return: 0 for continue retrying flogi on currently registered fcf; 1932 * 1 for stop flogi on currently registered fcf; 1933 */ 1934 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1935 { 1936 struct lpfc_hba *phba = vport->phba; 1937 int rc; 1938 1939 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1940 spin_lock_irq(&phba->hbalock); 1941 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1942 spin_unlock_irq(&phba->hbalock); 1943 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1944 "2872 Devloss tmo with no eligible " 1945 "FCF, unregister in-use FCF (x%x) " 1946 "and rescan FCF table\n", 1947 phba->fcf.current_rec.fcf_indx); 1948 lpfc_unregister_fcf_rescan(phba); 1949 goto stop_flogi_current_fcf; 1950 } 1951 /* Mark the end to FLOGI roundrobin failover */ 1952 phba->hba_flag &= ~FCF_RR_INPROG; 1953 /* Allow action to new fcf asynchronous event */ 1954 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1955 spin_unlock_irq(&phba->hbalock); 1956 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1957 "2865 No FCF available, stop roundrobin FCF " 1958 "failover and change port state:x%x/x%x\n", 1959 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1960 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1961 goto stop_flogi_current_fcf; 1962 } else { 1963 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1964 "2794 Try FLOGI roundrobin FCF failover to " 1965 "(x%x)\n", fcf_index); 1966 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1967 if (rc) 1968 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1969 "2761 FLOGI roundrobin FCF failover " 1970 "failed (rc:x%x) to read FCF (x%x)\n", 1971 rc, phba->fcf.current_rec.fcf_indx); 1972 else 1973 goto stop_flogi_current_fcf; 1974 } 1975 return 0; 1976 1977 stop_flogi_current_fcf: 1978 lpfc_can_disctmo(vport); 1979 return 1; 1980 } 1981 1982 /** 1983 * lpfc_sli4_fcf_pri_list_del 1984 * @phba: pointer to lpfc hba data structure. 1985 * @fcf_index the index of the fcf record to delete 1986 * This routine checks the on list flag of the fcf_index to be deleted. 1987 * If it is one the list then it is removed from the list, and the flag 1988 * is cleared. This routine grab the hbalock before removing the fcf 1989 * record from the list. 1990 **/ 1991 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 1992 uint16_t fcf_index) 1993 { 1994 struct lpfc_fcf_pri *new_fcf_pri; 1995 1996 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1997 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1998 "3058 deleting idx x%x pri x%x flg x%x\n", 1999 fcf_index, new_fcf_pri->fcf_rec.priority, 2000 new_fcf_pri->fcf_rec.flag); 2001 spin_lock_irq(&phba->hbalock); 2002 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2003 if (phba->fcf.current_rec.priority == 2004 new_fcf_pri->fcf_rec.priority) 2005 phba->fcf.eligible_fcf_cnt--; 2006 list_del_init(&new_fcf_pri->list); 2007 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2008 } 2009 spin_unlock_irq(&phba->hbalock); 2010 } 2011 2012 /** 2013 * lpfc_sli4_set_fcf_flogi_fail 2014 * @phba: pointer to lpfc hba data structure. 2015 * @fcf_index the index of the fcf record to update 2016 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2017 * flag so the the round robin slection for the particular priority level 2018 * will try a different fcf record that does not have this bit set. 2019 * If the fcf record is re-read for any reason this flag is cleared brfore 2020 * adding it to the priority list. 2021 **/ 2022 void 2023 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2024 { 2025 struct lpfc_fcf_pri *new_fcf_pri; 2026 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2027 spin_lock_irq(&phba->hbalock); 2028 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2029 spin_unlock_irq(&phba->hbalock); 2030 } 2031 2032 /** 2033 * lpfc_sli4_fcf_pri_list_add 2034 * @phba: pointer to lpfc hba data structure. 2035 * @fcf_index the index of the fcf record to add 2036 * This routine checks the priority of the fcf_index to be added. 2037 * If it is a lower priority than the current head of the fcf_pri list 2038 * then it is added to the list in the right order. 2039 * If it is the same priority as the current head of the list then it 2040 * is added to the head of the list and its bit in the rr_bmask is set. 2041 * If the fcf_index to be added is of a higher priority than the current 2042 * head of the list then the rr_bmask is cleared, its bit is set in the 2043 * rr_bmask and it is added to the head of the list. 2044 * returns: 2045 * 0=success 1=failure 2046 **/ 2047 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2048 uint16_t fcf_index, 2049 struct fcf_record *new_fcf_record) 2050 { 2051 uint16_t current_fcf_pri; 2052 uint16_t last_index; 2053 struct lpfc_fcf_pri *fcf_pri; 2054 struct lpfc_fcf_pri *next_fcf_pri; 2055 struct lpfc_fcf_pri *new_fcf_pri; 2056 int ret; 2057 2058 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2059 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2060 "3059 adding idx x%x pri x%x flg x%x\n", 2061 fcf_index, new_fcf_record->fip_priority, 2062 new_fcf_pri->fcf_rec.flag); 2063 spin_lock_irq(&phba->hbalock); 2064 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2065 list_del_init(&new_fcf_pri->list); 2066 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2067 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2068 if (list_empty(&phba->fcf.fcf_pri_list)) { 2069 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2070 ret = lpfc_sli4_fcf_rr_index_set(phba, 2071 new_fcf_pri->fcf_rec.fcf_index); 2072 goto out; 2073 } 2074 2075 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2076 LPFC_SLI4_FCF_TBL_INDX_MAX); 2077 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2078 ret = 0; /* Empty rr list */ 2079 goto out; 2080 } 2081 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2082 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2083 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2084 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2085 memset(phba->fcf.fcf_rr_bmask, 0, 2086 sizeof(*phba->fcf.fcf_rr_bmask)); 2087 /* fcfs_at_this_priority_level = 1; */ 2088 phba->fcf.eligible_fcf_cnt = 1; 2089 } else 2090 /* fcfs_at_this_priority_level++; */ 2091 phba->fcf.eligible_fcf_cnt++; 2092 ret = lpfc_sli4_fcf_rr_index_set(phba, 2093 new_fcf_pri->fcf_rec.fcf_index); 2094 goto out; 2095 } 2096 2097 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2098 &phba->fcf.fcf_pri_list, list) { 2099 if (new_fcf_pri->fcf_rec.priority <= 2100 fcf_pri->fcf_rec.priority) { 2101 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2102 list_add(&new_fcf_pri->list, 2103 &phba->fcf.fcf_pri_list); 2104 else 2105 list_add(&new_fcf_pri->list, 2106 &((struct lpfc_fcf_pri *) 2107 fcf_pri->list.prev)->list); 2108 ret = 0; 2109 goto out; 2110 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2111 || new_fcf_pri->fcf_rec.priority < 2112 next_fcf_pri->fcf_rec.priority) { 2113 list_add(&new_fcf_pri->list, &fcf_pri->list); 2114 ret = 0; 2115 goto out; 2116 } 2117 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2118 continue; 2119 2120 } 2121 ret = 1; 2122 out: 2123 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2124 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2125 spin_unlock_irq(&phba->hbalock); 2126 return ret; 2127 } 2128 2129 /** 2130 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2131 * @phba: pointer to lpfc hba data structure. 2132 * @mboxq: pointer to mailbox object. 2133 * 2134 * This function iterates through all the fcf records available in 2135 * HBA and chooses the optimal FCF record for discovery. After finding 2136 * the FCF for discovery it registers the FCF record and kicks start 2137 * discovery. 2138 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2139 * use an FCF record which matches fabric name and mac address of the 2140 * currently used FCF record. 2141 * If the driver supports only one FCF, it will try to use the FCF record 2142 * used by BOOT_BIOS. 2143 */ 2144 void 2145 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2146 { 2147 struct fcf_record *new_fcf_record; 2148 uint32_t boot_flag, addr_mode; 2149 uint16_t fcf_index, next_fcf_index; 2150 struct lpfc_fcf_rec *fcf_rec = NULL; 2151 uint16_t vlan_id; 2152 bool select_new_fcf; 2153 int rc; 2154 2155 /* If there is pending FCoE event restart FCF table scan */ 2156 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2157 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2158 return; 2159 } 2160 2161 /* Parse the FCF record from the non-embedded mailbox command */ 2162 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2163 &next_fcf_index); 2164 if (!new_fcf_record) { 2165 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2166 "2765 Mailbox command READ_FCF_RECORD " 2167 "failed to retrieve a FCF record.\n"); 2168 /* Let next new FCF event trigger fast failover */ 2169 spin_lock_irq(&phba->hbalock); 2170 phba->hba_flag &= ~FCF_TS_INPROG; 2171 spin_unlock_irq(&phba->hbalock); 2172 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2173 return; 2174 } 2175 2176 /* Check the FCF record against the connection list */ 2177 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2178 &addr_mode, &vlan_id); 2179 2180 /* Log the FCF record information if turned on */ 2181 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2182 next_fcf_index); 2183 2184 /* 2185 * If the fcf record does not match with connect list entries 2186 * read the next entry; otherwise, this is an eligible FCF 2187 * record for roundrobin FCF failover. 2188 */ 2189 if (!rc) { 2190 lpfc_sli4_fcf_pri_list_del(phba, 2191 bf_get(lpfc_fcf_record_fcf_index, 2192 new_fcf_record)); 2193 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2194 "2781 FCF (x%x) failed connection " 2195 "list check: (x%x/x%x/%x)\n", 2196 bf_get(lpfc_fcf_record_fcf_index, 2197 new_fcf_record), 2198 bf_get(lpfc_fcf_record_fcf_avail, 2199 new_fcf_record), 2200 bf_get(lpfc_fcf_record_fcf_valid, 2201 new_fcf_record), 2202 bf_get(lpfc_fcf_record_fcf_sol, 2203 new_fcf_record)); 2204 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2205 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2206 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2207 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2208 phba->fcf.current_rec.fcf_indx) { 2209 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2210 "2862 FCF (x%x) matches property " 2211 "of in-use FCF (x%x)\n", 2212 bf_get(lpfc_fcf_record_fcf_index, 2213 new_fcf_record), 2214 phba->fcf.current_rec.fcf_indx); 2215 goto read_next_fcf; 2216 } 2217 /* 2218 * In case the current in-use FCF record becomes 2219 * invalid/unavailable during FCF discovery that 2220 * was not triggered by fast FCF failover process, 2221 * treat it as fast FCF failover. 2222 */ 2223 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2224 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2225 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2226 "2835 Invalid in-use FCF " 2227 "(x%x), enter FCF failover " 2228 "table scan.\n", 2229 phba->fcf.current_rec.fcf_indx); 2230 spin_lock_irq(&phba->hbalock); 2231 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2232 spin_unlock_irq(&phba->hbalock); 2233 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2234 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2235 LPFC_FCOE_FCF_GET_FIRST); 2236 return; 2237 } 2238 } 2239 goto read_next_fcf; 2240 } else { 2241 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2242 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2243 new_fcf_record); 2244 if (rc) 2245 goto read_next_fcf; 2246 } 2247 2248 /* 2249 * If this is not the first FCF discovery of the HBA, use last 2250 * FCF record for the discovery. The condition that a rescan 2251 * matches the in-use FCF record: fabric name, switch name, mac 2252 * address, and vlan_id. 2253 */ 2254 spin_lock_irq(&phba->hbalock); 2255 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2256 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2257 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2258 new_fcf_record, vlan_id)) { 2259 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2260 phba->fcf.current_rec.fcf_indx) { 2261 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2262 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2263 /* Stop FCF redisc wait timer */ 2264 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2265 phba); 2266 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2267 /* Fast failover, mark completed */ 2268 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2269 spin_unlock_irq(&phba->hbalock); 2270 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2271 "2836 New FCF matches in-use " 2272 "FCF (x%x), port_state:x%x, " 2273 "fc_flag:x%x\n", 2274 phba->fcf.current_rec.fcf_indx, 2275 phba->pport->port_state, 2276 phba->pport->fc_flag); 2277 goto out; 2278 } else 2279 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2280 "2863 New FCF (x%x) matches " 2281 "property of in-use FCF (x%x)\n", 2282 bf_get(lpfc_fcf_record_fcf_index, 2283 new_fcf_record), 2284 phba->fcf.current_rec.fcf_indx); 2285 } 2286 /* 2287 * Read next FCF record from HBA searching for the matching 2288 * with in-use record only if not during the fast failover 2289 * period. In case of fast failover period, it shall try to 2290 * determine whether the FCF record just read should be the 2291 * next candidate. 2292 */ 2293 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2294 spin_unlock_irq(&phba->hbalock); 2295 goto read_next_fcf; 2296 } 2297 } 2298 /* 2299 * Update on failover FCF record only if it's in FCF fast-failover 2300 * period; otherwise, update on current FCF record. 2301 */ 2302 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2303 fcf_rec = &phba->fcf.failover_rec; 2304 else 2305 fcf_rec = &phba->fcf.current_rec; 2306 2307 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2308 /* 2309 * If the driver FCF record does not have boot flag 2310 * set and new hba fcf record has boot flag set, use 2311 * the new hba fcf record. 2312 */ 2313 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2314 /* Choose this FCF record */ 2315 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2316 "2837 Update current FCF record " 2317 "(x%x) with new FCF record (x%x)\n", 2318 fcf_rec->fcf_indx, 2319 bf_get(lpfc_fcf_record_fcf_index, 2320 new_fcf_record)); 2321 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2322 addr_mode, vlan_id, BOOT_ENABLE); 2323 spin_unlock_irq(&phba->hbalock); 2324 goto read_next_fcf; 2325 } 2326 /* 2327 * If the driver FCF record has boot flag set and the 2328 * new hba FCF record does not have boot flag, read 2329 * the next FCF record. 2330 */ 2331 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2332 spin_unlock_irq(&phba->hbalock); 2333 goto read_next_fcf; 2334 } 2335 /* 2336 * If the new hba FCF record has lower priority value 2337 * than the driver FCF record, use the new record. 2338 */ 2339 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2340 /* Choose the new FCF record with lower priority */ 2341 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2342 "2838 Update current FCF record " 2343 "(x%x) with new FCF record (x%x)\n", 2344 fcf_rec->fcf_indx, 2345 bf_get(lpfc_fcf_record_fcf_index, 2346 new_fcf_record)); 2347 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2348 addr_mode, vlan_id, 0); 2349 /* Reset running random FCF selection count */ 2350 phba->fcf.eligible_fcf_cnt = 1; 2351 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2352 /* Update running random FCF selection count */ 2353 phba->fcf.eligible_fcf_cnt++; 2354 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2355 phba->fcf.eligible_fcf_cnt); 2356 if (select_new_fcf) { 2357 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2358 "2839 Update current FCF record " 2359 "(x%x) with new FCF record (x%x)\n", 2360 fcf_rec->fcf_indx, 2361 bf_get(lpfc_fcf_record_fcf_index, 2362 new_fcf_record)); 2363 /* Choose the new FCF by random selection */ 2364 __lpfc_update_fcf_record(phba, fcf_rec, 2365 new_fcf_record, 2366 addr_mode, vlan_id, 0); 2367 } 2368 } 2369 spin_unlock_irq(&phba->hbalock); 2370 goto read_next_fcf; 2371 } 2372 /* 2373 * This is the first suitable FCF record, choose this record for 2374 * initial best-fit FCF. 2375 */ 2376 if (fcf_rec) { 2377 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2378 "2840 Update initial FCF candidate " 2379 "with FCF (x%x)\n", 2380 bf_get(lpfc_fcf_record_fcf_index, 2381 new_fcf_record)); 2382 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2383 addr_mode, vlan_id, (boot_flag ? 2384 BOOT_ENABLE : 0)); 2385 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2386 /* Setup initial running random FCF selection count */ 2387 phba->fcf.eligible_fcf_cnt = 1; 2388 } 2389 spin_unlock_irq(&phba->hbalock); 2390 goto read_next_fcf; 2391 2392 read_next_fcf: 2393 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2394 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2395 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2396 /* 2397 * Case of FCF fast failover scan 2398 */ 2399 2400 /* 2401 * It has not found any suitable FCF record, cancel 2402 * FCF scan inprogress, and do nothing 2403 */ 2404 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2405 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2406 "2782 No suitable FCF found: " 2407 "(x%x/x%x)\n", 2408 phba->fcoe_eventtag_at_fcf_scan, 2409 bf_get(lpfc_fcf_record_fcf_index, 2410 new_fcf_record)); 2411 spin_lock_irq(&phba->hbalock); 2412 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2413 phba->hba_flag &= ~FCF_TS_INPROG; 2414 spin_unlock_irq(&phba->hbalock); 2415 /* Unregister in-use FCF and rescan */ 2416 lpfc_printf_log(phba, KERN_INFO, 2417 LOG_FIP, 2418 "2864 On devloss tmo " 2419 "unreg in-use FCF and " 2420 "rescan FCF table\n"); 2421 lpfc_unregister_fcf_rescan(phba); 2422 return; 2423 } 2424 /* 2425 * Let next new FCF event trigger fast failover 2426 */ 2427 phba->hba_flag &= ~FCF_TS_INPROG; 2428 spin_unlock_irq(&phba->hbalock); 2429 return; 2430 } 2431 /* 2432 * It has found a suitable FCF record that is not 2433 * the same as in-use FCF record, unregister the 2434 * in-use FCF record, replace the in-use FCF record 2435 * with the new FCF record, mark FCF fast failover 2436 * completed, and then start register the new FCF 2437 * record. 2438 */ 2439 2440 /* Unregister the current in-use FCF record */ 2441 lpfc_unregister_fcf(phba); 2442 2443 /* Replace in-use record with the new record */ 2444 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2445 "2842 Replace in-use FCF (x%x) " 2446 "with failover FCF (x%x)\n", 2447 phba->fcf.current_rec.fcf_indx, 2448 phba->fcf.failover_rec.fcf_indx); 2449 memcpy(&phba->fcf.current_rec, 2450 &phba->fcf.failover_rec, 2451 sizeof(struct lpfc_fcf_rec)); 2452 /* 2453 * Mark the fast FCF failover rediscovery completed 2454 * and the start of the first round of the roundrobin 2455 * FCF failover. 2456 */ 2457 spin_lock_irq(&phba->hbalock); 2458 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2459 spin_unlock_irq(&phba->hbalock); 2460 /* Register to the new FCF record */ 2461 lpfc_register_fcf(phba); 2462 } else { 2463 /* 2464 * In case of transaction period to fast FCF failover, 2465 * do nothing when search to the end of the FCF table. 2466 */ 2467 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2468 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2469 return; 2470 2471 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2472 phba->fcf.fcf_flag & FCF_IN_USE) { 2473 /* 2474 * In case the current in-use FCF record no 2475 * longer existed during FCF discovery that 2476 * was not triggered by fast FCF failover 2477 * process, treat it as fast FCF failover. 2478 */ 2479 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2480 "2841 In-use FCF record (x%x) " 2481 "not reported, entering fast " 2482 "FCF failover mode scanning.\n", 2483 phba->fcf.current_rec.fcf_indx); 2484 spin_lock_irq(&phba->hbalock); 2485 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2486 spin_unlock_irq(&phba->hbalock); 2487 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2488 LPFC_FCOE_FCF_GET_FIRST); 2489 return; 2490 } 2491 /* Register to the new FCF record */ 2492 lpfc_register_fcf(phba); 2493 } 2494 } else 2495 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2496 return; 2497 2498 out: 2499 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2500 lpfc_register_fcf(phba); 2501 2502 return; 2503 } 2504 2505 /** 2506 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2507 * @phba: pointer to lpfc hba data structure. 2508 * @mboxq: pointer to mailbox object. 2509 * 2510 * This is the callback function for FLOGI failure roundrobin FCF failover 2511 * read FCF record mailbox command from the eligible FCF record bmask for 2512 * performing the failover. If the FCF read back is not valid/available, it 2513 * fails through to retrying FLOGI to the currently registered FCF again. 2514 * Otherwise, if the FCF read back is valid and available, it will set the 2515 * newly read FCF record to the failover FCF record, unregister currently 2516 * registered FCF record, copy the failover FCF record to the current 2517 * FCF record, and then register the current FCF record before proceeding 2518 * to trying FLOGI on the new failover FCF. 2519 */ 2520 void 2521 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2522 { 2523 struct fcf_record *new_fcf_record; 2524 uint32_t boot_flag, addr_mode; 2525 uint16_t next_fcf_index, fcf_index; 2526 uint16_t current_fcf_index; 2527 uint16_t vlan_id; 2528 int rc; 2529 2530 /* If link state is not up, stop the roundrobin failover process */ 2531 if (phba->link_state < LPFC_LINK_UP) { 2532 spin_lock_irq(&phba->hbalock); 2533 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2534 phba->hba_flag &= ~FCF_RR_INPROG; 2535 spin_unlock_irq(&phba->hbalock); 2536 goto out; 2537 } 2538 2539 /* Parse the FCF record from the non-embedded mailbox command */ 2540 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2541 &next_fcf_index); 2542 if (!new_fcf_record) { 2543 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2544 "2766 Mailbox command READ_FCF_RECORD " 2545 "failed to retrieve a FCF record. " 2546 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2547 phba->fcf.fcf_flag); 2548 lpfc_unregister_fcf_rescan(phba); 2549 goto out; 2550 } 2551 2552 /* Get the needed parameters from FCF record */ 2553 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2554 &addr_mode, &vlan_id); 2555 2556 /* Log the FCF record information if turned on */ 2557 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2558 next_fcf_index); 2559 2560 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2561 if (!rc) { 2562 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2563 "2848 Remove ineligible FCF (x%x) from " 2564 "from roundrobin bmask\n", fcf_index); 2565 /* Clear roundrobin bmask bit for ineligible FCF */ 2566 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2567 /* Perform next round of roundrobin FCF failover */ 2568 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2569 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2570 if (rc) 2571 goto out; 2572 goto error_out; 2573 } 2574 2575 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2576 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2577 "2760 Perform FLOGI roundrobin FCF failover: " 2578 "FCF (x%x) back to FCF (x%x)\n", 2579 phba->fcf.current_rec.fcf_indx, fcf_index); 2580 /* Wait 500 ms before retrying FLOGI to current FCF */ 2581 msleep(500); 2582 lpfc_issue_init_vfi(phba->pport); 2583 goto out; 2584 } 2585 2586 /* Upload new FCF record to the failover FCF record */ 2587 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2588 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2589 phba->fcf.failover_rec.fcf_indx, fcf_index); 2590 spin_lock_irq(&phba->hbalock); 2591 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2592 new_fcf_record, addr_mode, vlan_id, 2593 (boot_flag ? BOOT_ENABLE : 0)); 2594 spin_unlock_irq(&phba->hbalock); 2595 2596 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2597 2598 /* Unregister the current in-use FCF record */ 2599 lpfc_unregister_fcf(phba); 2600 2601 /* Replace in-use record with the new record */ 2602 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2603 sizeof(struct lpfc_fcf_rec)); 2604 2605 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2606 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2607 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2608 2609 error_out: 2610 lpfc_register_fcf(phba); 2611 out: 2612 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2613 } 2614 2615 /** 2616 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2617 * @phba: pointer to lpfc hba data structure. 2618 * @mboxq: pointer to mailbox object. 2619 * 2620 * This is the callback function of read FCF record mailbox command for 2621 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2622 * failover when a new FCF event happened. If the FCF read back is 2623 * valid/available and it passes the connection list check, it updates 2624 * the bmask for the eligible FCF record for roundrobin failover. 2625 */ 2626 void 2627 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2628 { 2629 struct fcf_record *new_fcf_record; 2630 uint32_t boot_flag, addr_mode; 2631 uint16_t fcf_index, next_fcf_index; 2632 uint16_t vlan_id; 2633 int rc; 2634 2635 /* If link state is not up, no need to proceed */ 2636 if (phba->link_state < LPFC_LINK_UP) 2637 goto out; 2638 2639 /* If FCF discovery period is over, no need to proceed */ 2640 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2641 goto out; 2642 2643 /* Parse the FCF record from the non-embedded mailbox command */ 2644 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2645 &next_fcf_index); 2646 if (!new_fcf_record) { 2647 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2648 "2767 Mailbox command READ_FCF_RECORD " 2649 "failed to retrieve a FCF record.\n"); 2650 goto out; 2651 } 2652 2653 /* Check the connection list for eligibility */ 2654 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2655 &addr_mode, &vlan_id); 2656 2657 /* Log the FCF record information if turned on */ 2658 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2659 next_fcf_index); 2660 2661 if (!rc) 2662 goto out; 2663 2664 /* Update the eligible FCF record index bmask */ 2665 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2666 2667 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2668 2669 out: 2670 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2671 } 2672 2673 /** 2674 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2675 * @phba: pointer to lpfc hba data structure. 2676 * @mboxq: pointer to mailbox data structure. 2677 * 2678 * This function handles completion of init vfi mailbox command. 2679 */ 2680 static void 2681 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2682 { 2683 struct lpfc_vport *vport = mboxq->vport; 2684 2685 /* 2686 * VFI not supported on interface type 0, just do the flogi 2687 * Also continue if the VFI is in use - just use the same one. 2688 */ 2689 if (mboxq->u.mb.mbxStatus && 2690 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2691 LPFC_SLI_INTF_IF_TYPE_0) && 2692 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2693 lpfc_printf_vlog(vport, KERN_ERR, 2694 LOG_MBOX, 2695 "2891 Init VFI mailbox failed 0x%x\n", 2696 mboxq->u.mb.mbxStatus); 2697 mempool_free(mboxq, phba->mbox_mem_pool); 2698 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2699 return; 2700 } 2701 2702 lpfc_initial_flogi(vport); 2703 mempool_free(mboxq, phba->mbox_mem_pool); 2704 return; 2705 } 2706 2707 /** 2708 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2709 * @vport: pointer to lpfc_vport data structure. 2710 * 2711 * This function issue a init_vfi mailbox command to initialize the VFI and 2712 * VPI for the physical port. 2713 */ 2714 void 2715 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2716 { 2717 LPFC_MBOXQ_t *mboxq; 2718 int rc; 2719 struct lpfc_hba *phba = vport->phba; 2720 2721 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2722 if (!mboxq) { 2723 lpfc_printf_vlog(vport, KERN_ERR, 2724 LOG_MBOX, "2892 Failed to allocate " 2725 "init_vfi mailbox\n"); 2726 return; 2727 } 2728 lpfc_init_vfi(mboxq, vport); 2729 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2730 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2731 if (rc == MBX_NOT_FINISHED) { 2732 lpfc_printf_vlog(vport, KERN_ERR, 2733 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2734 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2735 } 2736 } 2737 2738 /** 2739 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2740 * @phba: pointer to lpfc hba data structure. 2741 * @mboxq: pointer to mailbox data structure. 2742 * 2743 * This function handles completion of init vpi mailbox command. 2744 */ 2745 void 2746 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2747 { 2748 struct lpfc_vport *vport = mboxq->vport; 2749 struct lpfc_nodelist *ndlp; 2750 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2751 2752 if (mboxq->u.mb.mbxStatus) { 2753 lpfc_printf_vlog(vport, KERN_ERR, 2754 LOG_MBOX, 2755 "2609 Init VPI mailbox failed 0x%x\n", 2756 mboxq->u.mb.mbxStatus); 2757 mempool_free(mboxq, phba->mbox_mem_pool); 2758 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2759 return; 2760 } 2761 spin_lock_irq(shost->host_lock); 2762 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2763 spin_unlock_irq(shost->host_lock); 2764 2765 /* If this port is physical port or FDISC is done, do reg_vpi */ 2766 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2767 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2768 if (!ndlp) 2769 lpfc_printf_vlog(vport, KERN_ERR, 2770 LOG_DISCOVERY, 2771 "2731 Cannot find fabric " 2772 "controller node\n"); 2773 else 2774 lpfc_register_new_vport(phba, vport, ndlp); 2775 mempool_free(mboxq, phba->mbox_mem_pool); 2776 return; 2777 } 2778 2779 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2780 lpfc_initial_fdisc(vport); 2781 else { 2782 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2783 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2784 "2606 No NPIV Fabric support\n"); 2785 } 2786 mempool_free(mboxq, phba->mbox_mem_pool); 2787 return; 2788 } 2789 2790 /** 2791 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2792 * @vport: pointer to lpfc_vport data structure. 2793 * 2794 * This function issue a init_vpi mailbox command to initialize 2795 * VPI for the vport. 2796 */ 2797 void 2798 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2799 { 2800 LPFC_MBOXQ_t *mboxq; 2801 int rc, vpi; 2802 2803 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2804 vpi = lpfc_alloc_vpi(vport->phba); 2805 if (!vpi) { 2806 lpfc_printf_vlog(vport, KERN_ERR, 2807 LOG_MBOX, 2808 "3303 Failed to obtain vport vpi\n"); 2809 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2810 return; 2811 } 2812 vport->vpi = vpi; 2813 } 2814 2815 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2816 if (!mboxq) { 2817 lpfc_printf_vlog(vport, KERN_ERR, 2818 LOG_MBOX, "2607 Failed to allocate " 2819 "init_vpi mailbox\n"); 2820 return; 2821 } 2822 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2823 mboxq->vport = vport; 2824 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2825 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2826 if (rc == MBX_NOT_FINISHED) { 2827 lpfc_printf_vlog(vport, KERN_ERR, 2828 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2829 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2830 } 2831 } 2832 2833 /** 2834 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2835 * @phba: pointer to lpfc hba data structure. 2836 * 2837 * This function loops through the list of vports on the @phba and issues an 2838 * FDISC if possible. 2839 */ 2840 void 2841 lpfc_start_fdiscs(struct lpfc_hba *phba) 2842 { 2843 struct lpfc_vport **vports; 2844 int i; 2845 2846 vports = lpfc_create_vport_work_array(phba); 2847 if (vports != NULL) { 2848 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2849 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2850 continue; 2851 /* There are no vpi for this vport */ 2852 if (vports[i]->vpi > phba->max_vpi) { 2853 lpfc_vport_set_state(vports[i], 2854 FC_VPORT_FAILED); 2855 continue; 2856 } 2857 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2858 lpfc_vport_set_state(vports[i], 2859 FC_VPORT_LINKDOWN); 2860 continue; 2861 } 2862 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2863 lpfc_issue_init_vpi(vports[i]); 2864 continue; 2865 } 2866 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2867 lpfc_initial_fdisc(vports[i]); 2868 else { 2869 lpfc_vport_set_state(vports[i], 2870 FC_VPORT_NO_FABRIC_SUPP); 2871 lpfc_printf_vlog(vports[i], KERN_ERR, 2872 LOG_ELS, 2873 "0259 No NPIV " 2874 "Fabric support\n"); 2875 } 2876 } 2877 } 2878 lpfc_destroy_vport_work_array(phba, vports); 2879 } 2880 2881 void 2882 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2883 { 2884 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2885 struct lpfc_vport *vport = mboxq->vport; 2886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2887 2888 /* 2889 * VFI not supported for interface type 0, so ignore any mailbox 2890 * error (except VFI in use) and continue with the discovery. 2891 */ 2892 if (mboxq->u.mb.mbxStatus && 2893 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2894 LPFC_SLI_INTF_IF_TYPE_0) && 2895 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2896 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2897 "2018 REG_VFI mbxStatus error x%x " 2898 "HBA state x%x\n", 2899 mboxq->u.mb.mbxStatus, vport->port_state); 2900 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2901 /* FLOGI failed, use loop map to make discovery list */ 2902 lpfc_disc_list_loopmap(vport); 2903 /* Start discovery */ 2904 lpfc_disc_start(vport); 2905 goto out_free_mem; 2906 } 2907 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2908 goto out_free_mem; 2909 } 2910 2911 /* If the VFI is already registered, there is nothing else to do 2912 * Unless this was a VFI update and we are in PT2PT mode, then 2913 * we should drop through to set the port state to ready. 2914 */ 2915 if (vport->fc_flag & FC_VFI_REGISTERED) 2916 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2917 vport->fc_flag & FC_PT2PT)) 2918 goto out_free_mem; 2919 2920 /* The VPI is implicitly registered when the VFI is registered */ 2921 spin_lock_irq(shost->host_lock); 2922 vport->vpi_state |= LPFC_VPI_REGISTERED; 2923 vport->fc_flag |= FC_VFI_REGISTERED; 2924 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2925 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2926 spin_unlock_irq(shost->host_lock); 2927 2928 /* In case SLI4 FC loopback test, we are ready */ 2929 if ((phba->sli_rev == LPFC_SLI_REV4) && 2930 (phba->link_flag & LS_LOOPBACK_MODE)) { 2931 phba->link_state = LPFC_HBA_READY; 2932 goto out_free_mem; 2933 } 2934 2935 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2936 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2937 "alpacnt:%d LinkState:%x topology:%x\n", 2938 vport->port_state, vport->fc_flag, vport->fc_myDID, 2939 vport->phba->alpa_map[0], 2940 phba->link_state, phba->fc_topology); 2941 2942 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2943 /* 2944 * For private loop or for NPort pt2pt, 2945 * just start discovery and we are done. 2946 */ 2947 if ((vport->fc_flag & FC_PT2PT) || 2948 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2949 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2950 2951 /* Use loop map to make discovery list */ 2952 lpfc_disc_list_loopmap(vport); 2953 /* Start discovery */ 2954 if (vport->fc_flag & FC_PT2PT) 2955 vport->port_state = LPFC_VPORT_READY; 2956 else 2957 lpfc_disc_start(vport); 2958 } else { 2959 lpfc_start_fdiscs(phba); 2960 lpfc_do_scr_ns_plogi(phba, vport); 2961 } 2962 } 2963 2964 out_free_mem: 2965 mempool_free(mboxq, phba->mbox_mem_pool); 2966 if (dmabuf) { 2967 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2968 kfree(dmabuf); 2969 } 2970 return; 2971 } 2972 2973 static void 2974 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2975 { 2976 MAILBOX_t *mb = &pmb->u.mb; 2977 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 2978 struct lpfc_vport *vport = pmb->vport; 2979 struct serv_parm *sp = &vport->fc_sparam; 2980 uint32_t ed_tov; 2981 2982 /* Check for error */ 2983 if (mb->mbxStatus) { 2984 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 2985 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2986 "0319 READ_SPARAM mbxStatus error x%x " 2987 "hba state x%x>\n", 2988 mb->mbxStatus, vport->port_state); 2989 lpfc_linkdown(phba); 2990 goto out; 2991 } 2992 2993 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 2994 sizeof (struct serv_parm)); 2995 2996 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 2997 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 2998 ed_tov = (ed_tov + 999999) / 1000000; 2999 3000 phba->fc_edtov = ed_tov; 3001 phba->fc_ratov = (2 * ed_tov) / 1000; 3002 if (phba->fc_ratov < FF_DEF_RATOV) { 3003 /* RA_TOV should be atleast 10sec for initial flogi */ 3004 phba->fc_ratov = FF_DEF_RATOV; 3005 } 3006 3007 lpfc_update_vport_wwn(vport); 3008 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3009 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3010 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3011 } 3012 3013 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3014 kfree(mp); 3015 mempool_free(pmb, phba->mbox_mem_pool); 3016 return; 3017 3018 out: 3019 pmb->context1 = NULL; 3020 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3021 kfree(mp); 3022 lpfc_issue_clear_la(phba, vport); 3023 mempool_free(pmb, phba->mbox_mem_pool); 3024 return; 3025 } 3026 3027 static void 3028 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3029 { 3030 struct lpfc_vport *vport = phba->pport; 3031 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3032 struct Scsi_Host *shost; 3033 int i; 3034 struct lpfc_dmabuf *mp; 3035 int rc; 3036 struct fcf_record *fcf_record; 3037 uint32_t fc_flags = 0; 3038 3039 spin_lock_irq(&phba->hbalock); 3040 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3041 3042 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3043 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3044 case LPFC_LINK_SPEED_1GHZ: 3045 case LPFC_LINK_SPEED_2GHZ: 3046 case LPFC_LINK_SPEED_4GHZ: 3047 case LPFC_LINK_SPEED_8GHZ: 3048 case LPFC_LINK_SPEED_10GHZ: 3049 case LPFC_LINK_SPEED_16GHZ: 3050 case LPFC_LINK_SPEED_32GHZ: 3051 break; 3052 default: 3053 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3054 break; 3055 } 3056 } 3057 3058 if (phba->fc_topology && 3059 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3060 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3061 "3314 Toplogy changed was 0x%x is 0x%x\n", 3062 phba->fc_topology, 3063 bf_get(lpfc_mbx_read_top_topology, la)); 3064 phba->fc_topology_changed = 1; 3065 } 3066 3067 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3068 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3069 3070 shost = lpfc_shost_from_vport(vport); 3071 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3072 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3073 3074 /* if npiv is enabled and this adapter supports npiv log 3075 * a message that npiv is not supported in this topology 3076 */ 3077 if (phba->cfg_enable_npiv && phba->max_vpi) 3078 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3079 "1309 Link Up Event npiv not supported in loop " 3080 "topology\n"); 3081 /* Get Loop Map information */ 3082 if (bf_get(lpfc_mbx_read_top_il, la)) 3083 fc_flags |= FC_LBIT; 3084 3085 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3086 i = la->lilpBde64.tus.f.bdeSize; 3087 3088 if (i == 0) { 3089 phba->alpa_map[0] = 0; 3090 } else { 3091 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3092 int numalpa, j, k; 3093 union { 3094 uint8_t pamap[16]; 3095 struct { 3096 uint32_t wd1; 3097 uint32_t wd2; 3098 uint32_t wd3; 3099 uint32_t wd4; 3100 } pa; 3101 } un; 3102 numalpa = phba->alpa_map[0]; 3103 j = 0; 3104 while (j < numalpa) { 3105 memset(un.pamap, 0, 16); 3106 for (k = 1; j < numalpa; k++) { 3107 un.pamap[k - 1] = 3108 phba->alpa_map[j + 1]; 3109 j++; 3110 if (k == 16) 3111 break; 3112 } 3113 /* Link Up Event ALPA map */ 3114 lpfc_printf_log(phba, 3115 KERN_WARNING, 3116 LOG_LINK_EVENT, 3117 "1304 Link Up Event " 3118 "ALPA map Data: x%x " 3119 "x%x x%x x%x\n", 3120 un.pa.wd1, un.pa.wd2, 3121 un.pa.wd3, un.pa.wd4); 3122 } 3123 } 3124 } 3125 } else { 3126 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3127 if (phba->max_vpi && phba->cfg_enable_npiv && 3128 (phba->sli_rev >= LPFC_SLI_REV3)) 3129 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3130 } 3131 vport->fc_myDID = phba->fc_pref_DID; 3132 fc_flags |= FC_LBIT; 3133 } 3134 spin_unlock_irq(&phba->hbalock); 3135 3136 if (fc_flags) { 3137 spin_lock_irq(shost->host_lock); 3138 vport->fc_flag |= fc_flags; 3139 spin_unlock_irq(shost->host_lock); 3140 } 3141 3142 lpfc_linkup(phba); 3143 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3144 if (!sparam_mbox) 3145 goto out; 3146 3147 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3148 if (rc) { 3149 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3150 goto out; 3151 } 3152 sparam_mbox->vport = vport; 3153 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3154 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3155 if (rc == MBX_NOT_FINISHED) { 3156 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3157 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3158 kfree(mp); 3159 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3160 goto out; 3161 } 3162 3163 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3164 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3165 if (!cfglink_mbox) 3166 goto out; 3167 vport->port_state = LPFC_LOCAL_CFG_LINK; 3168 lpfc_config_link(phba, cfglink_mbox); 3169 cfglink_mbox->vport = vport; 3170 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3171 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3172 if (rc == MBX_NOT_FINISHED) { 3173 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3174 goto out; 3175 } 3176 } else { 3177 vport->port_state = LPFC_VPORT_UNKNOWN; 3178 /* 3179 * Add the driver's default FCF record at FCF index 0 now. This 3180 * is phase 1 implementation that support FCF index 0 and driver 3181 * defaults. 3182 */ 3183 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3184 fcf_record = kzalloc(sizeof(struct fcf_record), 3185 GFP_KERNEL); 3186 if (unlikely(!fcf_record)) { 3187 lpfc_printf_log(phba, KERN_ERR, 3188 LOG_MBOX | LOG_SLI, 3189 "2554 Could not allocate memory for " 3190 "fcf record\n"); 3191 rc = -ENODEV; 3192 goto out; 3193 } 3194 3195 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3196 LPFC_FCOE_FCF_DEF_INDEX); 3197 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3198 if (unlikely(rc)) { 3199 lpfc_printf_log(phba, KERN_ERR, 3200 LOG_MBOX | LOG_SLI, 3201 "2013 Could not manually add FCF " 3202 "record 0, status %d\n", rc); 3203 rc = -ENODEV; 3204 kfree(fcf_record); 3205 goto out; 3206 } 3207 kfree(fcf_record); 3208 } 3209 /* 3210 * The driver is expected to do FIP/FCF. Call the port 3211 * and get the FCF Table. 3212 */ 3213 spin_lock_irq(&phba->hbalock); 3214 if (phba->hba_flag & FCF_TS_INPROG) { 3215 spin_unlock_irq(&phba->hbalock); 3216 return; 3217 } 3218 /* This is the initial FCF discovery scan */ 3219 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3220 spin_unlock_irq(&phba->hbalock); 3221 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3222 "2778 Start FCF table scan at linkup\n"); 3223 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3224 LPFC_FCOE_FCF_GET_FIRST); 3225 if (rc) { 3226 spin_lock_irq(&phba->hbalock); 3227 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3228 spin_unlock_irq(&phba->hbalock); 3229 goto out; 3230 } 3231 /* Reset FCF roundrobin bmask for new discovery */ 3232 lpfc_sli4_clear_fcf_rr_bmask(phba); 3233 } 3234 3235 return; 3236 out: 3237 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3238 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3239 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3240 vport->port_state, sparam_mbox, cfglink_mbox); 3241 lpfc_issue_clear_la(phba, vport); 3242 return; 3243 } 3244 3245 static void 3246 lpfc_enable_la(struct lpfc_hba *phba) 3247 { 3248 uint32_t control; 3249 struct lpfc_sli *psli = &phba->sli; 3250 spin_lock_irq(&phba->hbalock); 3251 psli->sli_flag |= LPFC_PROCESS_LA; 3252 if (phba->sli_rev <= LPFC_SLI_REV3) { 3253 control = readl(phba->HCregaddr); 3254 control |= HC_LAINT_ENA; 3255 writel(control, phba->HCregaddr); 3256 readl(phba->HCregaddr); /* flush */ 3257 } 3258 spin_unlock_irq(&phba->hbalock); 3259 } 3260 3261 static void 3262 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3263 { 3264 lpfc_linkdown(phba); 3265 lpfc_enable_la(phba); 3266 lpfc_unregister_unused_fcf(phba); 3267 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3268 } 3269 3270 3271 /* 3272 * This routine handles processing a READ_TOPOLOGY mailbox 3273 * command upon completion. It is setup in the LPFC_MBOXQ 3274 * as the completion routine when the command is 3275 * handed off to the SLI layer. 3276 */ 3277 void 3278 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3279 { 3280 struct lpfc_vport *vport = pmb->vport; 3281 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3282 struct lpfc_mbx_read_top *la; 3283 MAILBOX_t *mb = &pmb->u.mb; 3284 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3285 3286 /* Unblock ELS traffic */ 3287 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 3288 /* Check for error */ 3289 if (mb->mbxStatus) { 3290 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3291 "1307 READ_LA mbox error x%x state x%x\n", 3292 mb->mbxStatus, vport->port_state); 3293 lpfc_mbx_issue_link_down(phba); 3294 phba->link_state = LPFC_HBA_ERROR; 3295 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3296 } 3297 3298 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3299 3300 memcpy(&phba->alpa_map[0], mp->virt, 128); 3301 3302 spin_lock_irq(shost->host_lock); 3303 if (bf_get(lpfc_mbx_read_top_pb, la)) 3304 vport->fc_flag |= FC_BYPASSED_MODE; 3305 else 3306 vport->fc_flag &= ~FC_BYPASSED_MODE; 3307 spin_unlock_irq(shost->host_lock); 3308 3309 if (phba->fc_eventTag <= la->eventTag) { 3310 phba->fc_stat.LinkMultiEvent++; 3311 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3312 if (phba->fc_eventTag != 0) 3313 lpfc_linkdown(phba); 3314 } 3315 3316 phba->fc_eventTag = la->eventTag; 3317 if (phba->sli_rev < LPFC_SLI_REV4) { 3318 spin_lock_irq(&phba->hbalock); 3319 if (bf_get(lpfc_mbx_read_top_mm, la)) 3320 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3321 else 3322 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3323 spin_unlock_irq(&phba->hbalock); 3324 } 3325 3326 phba->link_events++; 3327 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3328 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3329 phba->fc_stat.LinkUp++; 3330 if (phba->link_flag & LS_LOOPBACK_MODE) { 3331 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3332 "1306 Link Up Event in loop back mode " 3333 "x%x received Data: x%x x%x x%x x%x\n", 3334 la->eventTag, phba->fc_eventTag, 3335 bf_get(lpfc_mbx_read_top_alpa_granted, 3336 la), 3337 bf_get(lpfc_mbx_read_top_link_spd, la), 3338 phba->alpa_map[0]); 3339 } else { 3340 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3341 "1303 Link Up Event x%x received " 3342 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3343 la->eventTag, phba->fc_eventTag, 3344 bf_get(lpfc_mbx_read_top_alpa_granted, 3345 la), 3346 bf_get(lpfc_mbx_read_top_link_spd, la), 3347 phba->alpa_map[0], 3348 bf_get(lpfc_mbx_read_top_mm, la), 3349 bf_get(lpfc_mbx_read_top_fa, la), 3350 phba->wait_4_mlo_maint_flg); 3351 } 3352 lpfc_mbx_process_link_up(phba, la); 3353 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3354 LPFC_ATT_LINK_DOWN) { 3355 phba->fc_stat.LinkDown++; 3356 if (phba->link_flag & LS_LOOPBACK_MODE) 3357 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3358 "1308 Link Down Event in loop back mode " 3359 "x%x received " 3360 "Data: x%x x%x x%x\n", 3361 la->eventTag, phba->fc_eventTag, 3362 phba->pport->port_state, vport->fc_flag); 3363 else 3364 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3365 "1305 Link Down Event x%x received " 3366 "Data: x%x x%x x%x x%x x%x\n", 3367 la->eventTag, phba->fc_eventTag, 3368 phba->pport->port_state, vport->fc_flag, 3369 bf_get(lpfc_mbx_read_top_mm, la), 3370 bf_get(lpfc_mbx_read_top_fa, la)); 3371 lpfc_mbx_issue_link_down(phba); 3372 } 3373 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) && 3374 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) { 3375 if (phba->link_state != LPFC_LINK_DOWN) { 3376 phba->fc_stat.LinkDown++; 3377 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3378 "1312 Link Down Event x%x received " 3379 "Data: x%x x%x x%x\n", 3380 la->eventTag, phba->fc_eventTag, 3381 phba->pport->port_state, vport->fc_flag); 3382 lpfc_mbx_issue_link_down(phba); 3383 } else 3384 lpfc_enable_la(phba); 3385 3386 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3387 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3388 "Data: x%x x%x x%x\n", 3389 la->eventTag, phba->fc_eventTag, 3390 phba->pport->port_state, vport->fc_flag); 3391 /* 3392 * The cmnd that triggered this will be waiting for this 3393 * signal. 3394 */ 3395 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3396 if (phba->wait_4_mlo_maint_flg) { 3397 phba->wait_4_mlo_maint_flg = 0; 3398 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3399 } 3400 } 3401 3402 if ((phba->sli_rev < LPFC_SLI_REV4) && 3403 bf_get(lpfc_mbx_read_top_fa, la)) { 3404 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3405 lpfc_issue_clear_la(phba, vport); 3406 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3407 "1311 fa %d\n", 3408 bf_get(lpfc_mbx_read_top_fa, la)); 3409 } 3410 3411 lpfc_mbx_cmpl_read_topology_free_mbuf: 3412 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3413 kfree(mp); 3414 mempool_free(pmb, phba->mbox_mem_pool); 3415 return; 3416 } 3417 3418 /* 3419 * This routine handles processing a REG_LOGIN mailbox 3420 * command upon completion. It is setup in the LPFC_MBOXQ 3421 * as the completion routine when the command is 3422 * handed off to the SLI layer. 3423 */ 3424 void 3425 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3426 { 3427 struct lpfc_vport *vport = pmb->vport; 3428 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3429 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3430 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3431 3432 pmb->context1 = NULL; 3433 pmb->context2 = NULL; 3434 3435 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3436 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3437 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3438 atomic_read(&ndlp->kref.refcount), 3439 ndlp->nlp_usg_map, ndlp); 3440 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3441 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3442 3443 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3444 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3445 /* We rcvd a rscn after issuing this 3446 * mbox reg login, we may have cycled 3447 * back through the state and be 3448 * back at reg login state so this 3449 * mbox needs to be ignored becase 3450 * there is another reg login in 3451 * process. 3452 */ 3453 spin_lock_irq(shost->host_lock); 3454 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3455 spin_unlock_irq(shost->host_lock); 3456 } 3457 3458 /* Call state machine */ 3459 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3460 3461 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3462 kfree(mp); 3463 mempool_free(pmb, phba->mbox_mem_pool); 3464 /* decrement the node reference count held for this callback 3465 * function. 3466 */ 3467 lpfc_nlp_put(ndlp); 3468 3469 return; 3470 } 3471 3472 static void 3473 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3474 { 3475 MAILBOX_t *mb = &pmb->u.mb; 3476 struct lpfc_vport *vport = pmb->vport; 3477 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3478 3479 switch (mb->mbxStatus) { 3480 case 0x0011: 3481 case 0x0020: 3482 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3483 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3484 mb->mbxStatus); 3485 break; 3486 /* If VPI is busy, reset the HBA */ 3487 case 0x9700: 3488 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3489 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3490 vport->vpi, mb->mbxStatus); 3491 if (!(phba->pport->load_flag & FC_UNLOADING)) 3492 lpfc_workq_post_event(phba, NULL, NULL, 3493 LPFC_EVT_RESET_HBA); 3494 } 3495 spin_lock_irq(shost->host_lock); 3496 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3497 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3498 spin_unlock_irq(shost->host_lock); 3499 vport->unreg_vpi_cmpl = VPORT_OK; 3500 mempool_free(pmb, phba->mbox_mem_pool); 3501 lpfc_cleanup_vports_rrqs(vport, NULL); 3502 /* 3503 * This shost reference might have been taken at the beginning of 3504 * lpfc_vport_delete() 3505 */ 3506 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3507 scsi_host_put(shost); 3508 } 3509 3510 int 3511 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3512 { 3513 struct lpfc_hba *phba = vport->phba; 3514 LPFC_MBOXQ_t *mbox; 3515 int rc; 3516 3517 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3518 if (!mbox) 3519 return 1; 3520 3521 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3522 mbox->vport = vport; 3523 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3524 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3525 if (rc == MBX_NOT_FINISHED) { 3526 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3527 "1800 Could not issue unreg_vpi\n"); 3528 mempool_free(mbox, phba->mbox_mem_pool); 3529 vport->unreg_vpi_cmpl = VPORT_ERROR; 3530 return rc; 3531 } 3532 return 0; 3533 } 3534 3535 static void 3536 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3537 { 3538 struct lpfc_vport *vport = pmb->vport; 3539 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3540 MAILBOX_t *mb = &pmb->u.mb; 3541 3542 switch (mb->mbxStatus) { 3543 case 0x0011: 3544 case 0x9601: 3545 case 0x9602: 3546 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3547 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3548 mb->mbxStatus); 3549 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3550 spin_lock_irq(shost->host_lock); 3551 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3552 spin_unlock_irq(shost->host_lock); 3553 vport->fc_myDID = 0; 3554 goto out; 3555 } 3556 3557 spin_lock_irq(shost->host_lock); 3558 vport->vpi_state |= LPFC_VPI_REGISTERED; 3559 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3560 spin_unlock_irq(shost->host_lock); 3561 vport->num_disc_nodes = 0; 3562 /* go thru NPR list and issue ELS PLOGIs */ 3563 if (vport->fc_npr_cnt) 3564 lpfc_els_disc_plogi(vport); 3565 3566 if (!vport->num_disc_nodes) { 3567 spin_lock_irq(shost->host_lock); 3568 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3569 spin_unlock_irq(shost->host_lock); 3570 lpfc_can_disctmo(vport); 3571 } 3572 vport->port_state = LPFC_VPORT_READY; 3573 3574 out: 3575 mempool_free(pmb, phba->mbox_mem_pool); 3576 return; 3577 } 3578 3579 /** 3580 * lpfc_create_static_vport - Read HBA config region to create static vports. 3581 * @phba: pointer to lpfc hba data structure. 3582 * 3583 * This routine issue a DUMP mailbox command for config region 22 to get 3584 * the list of static vports to be created. The function create vports 3585 * based on the information returned from the HBA. 3586 **/ 3587 void 3588 lpfc_create_static_vport(struct lpfc_hba *phba) 3589 { 3590 LPFC_MBOXQ_t *pmb = NULL; 3591 MAILBOX_t *mb; 3592 struct static_vport_info *vport_info; 3593 int mbx_wait_rc = 0, i; 3594 struct fc_vport_identifiers vport_id; 3595 struct fc_vport *new_fc_vport; 3596 struct Scsi_Host *shost; 3597 struct lpfc_vport *vport; 3598 uint16_t offset = 0; 3599 uint8_t *vport_buff; 3600 struct lpfc_dmabuf *mp; 3601 uint32_t byte_count = 0; 3602 3603 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3604 if (!pmb) { 3605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3606 "0542 lpfc_create_static_vport failed to" 3607 " allocate mailbox memory\n"); 3608 return; 3609 } 3610 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3611 mb = &pmb->u.mb; 3612 3613 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3614 if (!vport_info) { 3615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3616 "0543 lpfc_create_static_vport failed to" 3617 " allocate vport_info\n"); 3618 mempool_free(pmb, phba->mbox_mem_pool); 3619 return; 3620 } 3621 3622 vport_buff = (uint8_t *) vport_info; 3623 do { 3624 /* free dma buffer from previous round */ 3625 if (pmb->context1) { 3626 mp = (struct lpfc_dmabuf *)pmb->context1; 3627 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3628 kfree(mp); 3629 } 3630 if (lpfc_dump_static_vport(phba, pmb, offset)) 3631 goto out; 3632 3633 pmb->vport = phba->pport; 3634 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3635 LPFC_MBOX_TMO); 3636 3637 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3638 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3639 "0544 lpfc_create_static_vport failed to" 3640 " issue dump mailbox command ret 0x%x " 3641 "status 0x%x\n", 3642 mbx_wait_rc, mb->mbxStatus); 3643 goto out; 3644 } 3645 3646 if (phba->sli_rev == LPFC_SLI_REV4) { 3647 byte_count = pmb->u.mqe.un.mb_words[5]; 3648 mp = (struct lpfc_dmabuf *)pmb->context1; 3649 if (byte_count > sizeof(struct static_vport_info) - 3650 offset) 3651 byte_count = sizeof(struct static_vport_info) 3652 - offset; 3653 memcpy(vport_buff + offset, mp->virt, byte_count); 3654 offset += byte_count; 3655 } else { 3656 if (mb->un.varDmp.word_cnt > 3657 sizeof(struct static_vport_info) - offset) 3658 mb->un.varDmp.word_cnt = 3659 sizeof(struct static_vport_info) 3660 - offset; 3661 byte_count = mb->un.varDmp.word_cnt; 3662 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3663 vport_buff + offset, 3664 byte_count); 3665 3666 offset += byte_count; 3667 } 3668 3669 } while (byte_count && 3670 offset < sizeof(struct static_vport_info)); 3671 3672 3673 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3674 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3675 != VPORT_INFO_REV)) { 3676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3677 "0545 lpfc_create_static_vport bad" 3678 " information header 0x%x 0x%x\n", 3679 le32_to_cpu(vport_info->signature), 3680 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3681 3682 goto out; 3683 } 3684 3685 shost = lpfc_shost_from_vport(phba->pport); 3686 3687 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3688 memset(&vport_id, 0, sizeof(vport_id)); 3689 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3690 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3691 if (!vport_id.port_name || !vport_id.node_name) 3692 continue; 3693 3694 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3695 vport_id.vport_type = FC_PORTTYPE_NPIV; 3696 vport_id.disable = false; 3697 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3698 3699 if (!new_fc_vport) { 3700 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3701 "0546 lpfc_create_static_vport failed to" 3702 " create vport\n"); 3703 continue; 3704 } 3705 3706 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3707 vport->vport_flag |= STATIC_VPORT; 3708 } 3709 3710 out: 3711 kfree(vport_info); 3712 if (mbx_wait_rc != MBX_TIMEOUT) { 3713 if (pmb->context1) { 3714 mp = (struct lpfc_dmabuf *)pmb->context1; 3715 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3716 kfree(mp); 3717 } 3718 mempool_free(pmb, phba->mbox_mem_pool); 3719 } 3720 3721 return; 3722 } 3723 3724 /* 3725 * This routine handles processing a Fabric REG_LOGIN mailbox 3726 * command upon completion. It is setup in the LPFC_MBOXQ 3727 * as the completion routine when the command is 3728 * handed off to the SLI layer. 3729 */ 3730 void 3731 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3732 { 3733 struct lpfc_vport *vport = pmb->vport; 3734 MAILBOX_t *mb = &pmb->u.mb; 3735 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3736 struct lpfc_nodelist *ndlp; 3737 struct Scsi_Host *shost; 3738 3739 ndlp = (struct lpfc_nodelist *) pmb->context2; 3740 pmb->context1 = NULL; 3741 pmb->context2 = NULL; 3742 3743 if (mb->mbxStatus) { 3744 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3745 "0258 Register Fabric login error: 0x%x\n", 3746 mb->mbxStatus); 3747 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3748 kfree(mp); 3749 mempool_free(pmb, phba->mbox_mem_pool); 3750 3751 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3752 /* FLOGI failed, use loop map to make discovery list */ 3753 lpfc_disc_list_loopmap(vport); 3754 3755 /* Start discovery */ 3756 lpfc_disc_start(vport); 3757 /* Decrement the reference count to ndlp after the 3758 * reference to the ndlp are done. 3759 */ 3760 lpfc_nlp_put(ndlp); 3761 return; 3762 } 3763 3764 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3765 /* Decrement the reference count to ndlp after the reference 3766 * to the ndlp are done. 3767 */ 3768 lpfc_nlp_put(ndlp); 3769 return; 3770 } 3771 3772 if (phba->sli_rev < LPFC_SLI_REV4) 3773 ndlp->nlp_rpi = mb->un.varWords[0]; 3774 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3775 ndlp->nlp_type |= NLP_FABRIC; 3776 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3777 3778 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3779 /* when physical port receive logo donot start 3780 * vport discovery */ 3781 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3782 lpfc_start_fdiscs(phba); 3783 else { 3784 shost = lpfc_shost_from_vport(vport); 3785 spin_lock_irq(shost->host_lock); 3786 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3787 spin_unlock_irq(shost->host_lock); 3788 } 3789 lpfc_do_scr_ns_plogi(phba, vport); 3790 } 3791 3792 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3793 kfree(mp); 3794 mempool_free(pmb, phba->mbox_mem_pool); 3795 3796 /* Drop the reference count from the mbox at the end after 3797 * all the current reference to the ndlp have been done. 3798 */ 3799 lpfc_nlp_put(ndlp); 3800 return; 3801 } 3802 3803 /* 3804 * This routine handles processing a NameServer REG_LOGIN mailbox 3805 * command upon completion. It is setup in the LPFC_MBOXQ 3806 * as the completion routine when the command is 3807 * handed off to the SLI layer. 3808 */ 3809 void 3810 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3811 { 3812 MAILBOX_t *mb = &pmb->u.mb; 3813 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3814 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3815 struct lpfc_vport *vport = pmb->vport; 3816 3817 pmb->context1 = NULL; 3818 pmb->context2 = NULL; 3819 3820 if (mb->mbxStatus) { 3821 out: 3822 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3823 "0260 Register NameServer error: 0x%x\n", 3824 mb->mbxStatus); 3825 /* decrement the node reference count held for this 3826 * callback function. 3827 */ 3828 lpfc_nlp_put(ndlp); 3829 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3830 kfree(mp); 3831 mempool_free(pmb, phba->mbox_mem_pool); 3832 3833 /* If no other thread is using the ndlp, free it */ 3834 lpfc_nlp_not_used(ndlp); 3835 3836 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3837 /* 3838 * RegLogin failed, use loop map to make discovery 3839 * list 3840 */ 3841 lpfc_disc_list_loopmap(vport); 3842 3843 /* Start discovery */ 3844 lpfc_disc_start(vport); 3845 return; 3846 } 3847 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3848 return; 3849 } 3850 3851 if (phba->sli_rev < LPFC_SLI_REV4) 3852 ndlp->nlp_rpi = mb->un.varWords[0]; 3853 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3854 ndlp->nlp_type |= NLP_FABRIC; 3855 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3856 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3857 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3858 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3859 atomic_read(&ndlp->kref.refcount), 3860 ndlp->nlp_usg_map, ndlp); 3861 3862 if (vport->port_state < LPFC_VPORT_READY) { 3863 /* Link up discovery requires Fabric registration. */ 3864 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3865 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3866 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3867 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3868 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); 3869 3870 /* Issue SCR just before NameServer GID_FT Query */ 3871 lpfc_issue_els_scr(vport, SCR_DID, 0); 3872 } 3873 3874 vport->fc_ns_retry = 0; 3875 /* Good status, issue CT Request to NameServer */ 3876 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 3877 /* Cannot issue NameServer Query, so finish up discovery */ 3878 goto out; 3879 } 3880 3881 /* decrement the node reference count held for this 3882 * callback function. 3883 */ 3884 lpfc_nlp_put(ndlp); 3885 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3886 kfree(mp); 3887 mempool_free(pmb, phba->mbox_mem_pool); 3888 3889 return; 3890 } 3891 3892 static void 3893 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3894 { 3895 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3896 struct fc_rport *rport; 3897 struct lpfc_rport_data *rdata; 3898 struct fc_rport_identifiers rport_ids; 3899 struct lpfc_hba *phba = vport->phba; 3900 3901 /* Remote port has reappeared. Re-register w/ FC transport */ 3902 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 3903 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 3904 rport_ids.port_id = ndlp->nlp_DID; 3905 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 3906 3907 /* 3908 * We leave our node pointer in rport->dd_data when we unregister a 3909 * FCP target port. But fc_remote_port_add zeros the space to which 3910 * rport->dd_data points. So, if we're reusing a previously 3911 * registered port, drop the reference that we took the last time we 3912 * registered the port. 3913 */ 3914 rport = ndlp->rport; 3915 if (rport) { 3916 rdata = rport->dd_data; 3917 /* break the link before dropping the ref */ 3918 ndlp->rport = NULL; 3919 if (rdata && rdata->pnode == ndlp) 3920 lpfc_nlp_put(ndlp); 3921 rdata->pnode = NULL; 3922 /* drop reference for earlier registeration */ 3923 put_device(&rport->dev); 3924 } 3925 3926 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 3927 "rport add: did:x%x flg:x%x type x%x", 3928 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3929 3930 /* Don't add the remote port if unloading. */ 3931 if (vport->load_flag & FC_UNLOADING) 3932 return; 3933 3934 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 3935 if (!rport || !get_device(&rport->dev)) { 3936 dev_printk(KERN_WARNING, &phba->pcidev->dev, 3937 "Warning: fc_remote_port_add failed\n"); 3938 return; 3939 } 3940 3941 /* initialize static port data */ 3942 rport->maxframe_size = ndlp->nlp_maxframe; 3943 rport->supported_classes = ndlp->nlp_class_sup; 3944 rdata = rport->dd_data; 3945 rdata->pnode = lpfc_nlp_get(ndlp); 3946 3947 if (ndlp->nlp_type & NLP_FCP_TARGET) 3948 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 3949 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 3950 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 3951 3952 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 3953 fc_remote_port_rolechg(rport, rport_ids.roles); 3954 3955 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3956 "3183 rport register x%06x, rport %p role x%x\n", 3957 ndlp->nlp_DID, rport, rport_ids.roles); 3958 3959 if ((rport->scsi_target_id != -1) && 3960 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 3961 ndlp->nlp_sid = rport->scsi_target_id; 3962 } 3963 return; 3964 } 3965 3966 static void 3967 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 3968 { 3969 struct fc_rport *rport = ndlp->rport; 3970 3971 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 3972 "rport delete: did:x%x flg:x%x type x%x", 3973 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3974 3975 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3976 "3184 rport unregister x%06x, rport %p\n", 3977 ndlp->nlp_DID, rport); 3978 3979 fc_remote_port_delete(rport); 3980 3981 return; 3982 } 3983 3984 static void 3985 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 3986 { 3987 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3988 3989 spin_lock_irq(shost->host_lock); 3990 switch (state) { 3991 case NLP_STE_UNUSED_NODE: 3992 vport->fc_unused_cnt += count; 3993 break; 3994 case NLP_STE_PLOGI_ISSUE: 3995 vport->fc_plogi_cnt += count; 3996 break; 3997 case NLP_STE_ADISC_ISSUE: 3998 vport->fc_adisc_cnt += count; 3999 break; 4000 case NLP_STE_REG_LOGIN_ISSUE: 4001 vport->fc_reglogin_cnt += count; 4002 break; 4003 case NLP_STE_PRLI_ISSUE: 4004 vport->fc_prli_cnt += count; 4005 break; 4006 case NLP_STE_UNMAPPED_NODE: 4007 vport->fc_unmap_cnt += count; 4008 break; 4009 case NLP_STE_MAPPED_NODE: 4010 vport->fc_map_cnt += count; 4011 break; 4012 case NLP_STE_NPR_NODE: 4013 if (vport->fc_npr_cnt == 0 && count == -1) 4014 vport->fc_npr_cnt = 0; 4015 else 4016 vport->fc_npr_cnt += count; 4017 break; 4018 } 4019 spin_unlock_irq(shost->host_lock); 4020 } 4021 4022 static void 4023 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4024 int old_state, int new_state) 4025 { 4026 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4027 4028 if (new_state == NLP_STE_UNMAPPED_NODE) { 4029 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4030 ndlp->nlp_type |= NLP_FC_NODE; 4031 } 4032 if (new_state == NLP_STE_MAPPED_NODE) 4033 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4034 if (new_state == NLP_STE_NPR_NODE) 4035 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4036 4037 /* Transport interface */ 4038 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 4039 old_state == NLP_STE_UNMAPPED_NODE)) { 4040 vport->phba->nport_event_cnt++; 4041 lpfc_unregister_remote_port(ndlp); 4042 } 4043 4044 if (new_state == NLP_STE_MAPPED_NODE || 4045 new_state == NLP_STE_UNMAPPED_NODE) { 4046 vport->phba->nport_event_cnt++; 4047 /* 4048 * Tell the fc transport about the port, if we haven't 4049 * already. If we have, and it's a scsi entity, be 4050 * sure to unblock any attached scsi devices 4051 */ 4052 lpfc_register_remote_port(vport, ndlp); 4053 } 4054 if ((new_state == NLP_STE_MAPPED_NODE) && 4055 (vport->stat_data_enabled)) { 4056 /* 4057 * A new target is discovered, if there is no buffer for 4058 * statistical data collection allocate buffer. 4059 */ 4060 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4061 sizeof(struct lpfc_scsicmd_bkt), 4062 GFP_KERNEL); 4063 4064 if (!ndlp->lat_data) 4065 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4066 "0286 lpfc_nlp_state_cleanup failed to " 4067 "allocate statistical data buffer DID " 4068 "0x%x\n", ndlp->nlp_DID); 4069 } 4070 /* 4071 * if we added to Mapped list, but the remote port 4072 * registration failed or assigned a target id outside 4073 * our presentable range - move the node to the 4074 * Unmapped List 4075 */ 4076 if (new_state == NLP_STE_MAPPED_NODE && 4077 (!ndlp->rport || 4078 ndlp->rport->scsi_target_id == -1 || 4079 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4080 spin_lock_irq(shost->host_lock); 4081 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4082 spin_unlock_irq(shost->host_lock); 4083 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4084 } 4085 } 4086 4087 static char * 4088 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4089 { 4090 static char *states[] = { 4091 [NLP_STE_UNUSED_NODE] = "UNUSED", 4092 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4093 [NLP_STE_ADISC_ISSUE] = "ADISC", 4094 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4095 [NLP_STE_PRLI_ISSUE] = "PRLI", 4096 [NLP_STE_LOGO_ISSUE] = "LOGO", 4097 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4098 [NLP_STE_MAPPED_NODE] = "MAPPED", 4099 [NLP_STE_NPR_NODE] = "NPR", 4100 }; 4101 4102 if (state < NLP_STE_MAX_STATE && states[state]) 4103 strlcpy(buffer, states[state], size); 4104 else 4105 snprintf(buffer, size, "unknown (%d)", state); 4106 return buffer; 4107 } 4108 4109 void 4110 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4111 int state) 4112 { 4113 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4114 int old_state = ndlp->nlp_state; 4115 char name1[16], name2[16]; 4116 4117 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4118 "0904 NPort state transition x%06x, %s -> %s\n", 4119 ndlp->nlp_DID, 4120 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4121 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4122 4123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4124 "node statechg did:x%x old:%d ste:%d", 4125 ndlp->nlp_DID, old_state, state); 4126 4127 if (old_state == NLP_STE_NPR_NODE && 4128 state != NLP_STE_NPR_NODE) 4129 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4130 if (old_state == NLP_STE_UNMAPPED_NODE) { 4131 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4132 ndlp->nlp_type &= ~NLP_FC_NODE; 4133 } 4134 4135 if (list_empty(&ndlp->nlp_listp)) { 4136 spin_lock_irq(shost->host_lock); 4137 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4138 spin_unlock_irq(shost->host_lock); 4139 } else if (old_state) 4140 lpfc_nlp_counters(vport, old_state, -1); 4141 4142 ndlp->nlp_state = state; 4143 lpfc_nlp_counters(vport, state, 1); 4144 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4145 } 4146 4147 void 4148 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4149 { 4150 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4151 4152 if (list_empty(&ndlp->nlp_listp)) { 4153 spin_lock_irq(shost->host_lock); 4154 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4155 spin_unlock_irq(shost->host_lock); 4156 } 4157 } 4158 4159 void 4160 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4161 { 4162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4163 4164 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4165 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4166 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4167 spin_lock_irq(shost->host_lock); 4168 list_del_init(&ndlp->nlp_listp); 4169 spin_unlock_irq(shost->host_lock); 4170 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4171 NLP_STE_UNUSED_NODE); 4172 } 4173 4174 static void 4175 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4176 { 4177 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4178 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4179 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4180 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4181 NLP_STE_UNUSED_NODE); 4182 } 4183 /** 4184 * lpfc_initialize_node - Initialize all fields of node object 4185 * @vport: Pointer to Virtual Port object. 4186 * @ndlp: Pointer to FC node object. 4187 * @did: FC_ID of the node. 4188 * 4189 * This function is always called when node object need to be initialized. 4190 * It initializes all the fields of the node object. Although the reference 4191 * to phba from @ndlp can be obtained indirectly through it's reference to 4192 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4193 * to the life-span of the @ndlp might go beyond the existence of @vport as 4194 * the final release of ndlp is determined by its reference count. And, the 4195 * operation on @ndlp needs the reference to phba. 4196 **/ 4197 static inline void 4198 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4199 uint32_t did) 4200 { 4201 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4202 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4203 init_timer(&ndlp->nlp_delayfunc); 4204 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 4205 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 4206 ndlp->nlp_DID = did; 4207 ndlp->vport = vport; 4208 ndlp->phba = vport->phba; 4209 ndlp->nlp_sid = NLP_NO_SID; 4210 kref_init(&ndlp->kref); 4211 NLP_INT_NODE_ACT(ndlp); 4212 atomic_set(&ndlp->cmd_pending, 0); 4213 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4214 } 4215 4216 struct lpfc_nodelist * 4217 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4218 int state) 4219 { 4220 struct lpfc_hba *phba = vport->phba; 4221 uint32_t did; 4222 unsigned long flags; 4223 unsigned long *active_rrqs_xri_bitmap = NULL; 4224 4225 if (!ndlp) 4226 return NULL; 4227 4228 spin_lock_irqsave(&phba->ndlp_lock, flags); 4229 /* The ndlp should not be in memory free mode */ 4230 if (NLP_CHK_FREE_REQ(ndlp)) { 4231 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4232 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4233 "0277 lpfc_enable_node: ndlp:x%p " 4234 "usgmap:x%x refcnt:%d\n", 4235 (void *)ndlp, ndlp->nlp_usg_map, 4236 atomic_read(&ndlp->kref.refcount)); 4237 return NULL; 4238 } 4239 /* The ndlp should not already be in active mode */ 4240 if (NLP_CHK_NODE_ACT(ndlp)) { 4241 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4242 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4243 "0278 lpfc_enable_node: ndlp:x%p " 4244 "usgmap:x%x refcnt:%d\n", 4245 (void *)ndlp, ndlp->nlp_usg_map, 4246 atomic_read(&ndlp->kref.refcount)); 4247 return NULL; 4248 } 4249 4250 /* Keep the original DID */ 4251 did = ndlp->nlp_DID; 4252 if (phba->sli_rev == LPFC_SLI_REV4) 4253 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4254 4255 /* re-initialize ndlp except of ndlp linked list pointer */ 4256 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4257 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4258 lpfc_initialize_node(vport, ndlp, did); 4259 4260 if (phba->sli_rev == LPFC_SLI_REV4) 4261 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4262 4263 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4264 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4265 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4266 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4267 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4268 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4269 ndlp->nlp_flag, 4270 atomic_read(&ndlp->kref.refcount), 4271 ndlp->nlp_usg_map, ndlp); 4272 } 4273 4274 4275 if (state != NLP_STE_UNUSED_NODE) 4276 lpfc_nlp_set_state(vport, ndlp, state); 4277 4278 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4279 "node enable: did:x%x", 4280 ndlp->nlp_DID, 0, 0); 4281 return ndlp; 4282 } 4283 4284 void 4285 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4286 { 4287 /* 4288 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4289 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4290 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4291 * until ALL other outstanding threads have completed. We check 4292 * that the ndlp not already in the UNUSED state before we proceed. 4293 */ 4294 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4295 return; 4296 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4297 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4298 lpfc_cleanup_vports_rrqs(vport, ndlp); 4299 lpfc_unreg_rpi(vport, ndlp); 4300 } 4301 4302 lpfc_nlp_put(ndlp); 4303 return; 4304 } 4305 4306 /* 4307 * Start / ReStart rescue timer for Discovery / RSCN handling 4308 */ 4309 void 4310 lpfc_set_disctmo(struct lpfc_vport *vport) 4311 { 4312 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4313 struct lpfc_hba *phba = vport->phba; 4314 uint32_t tmo; 4315 4316 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4317 /* For FAN, timeout should be greater than edtov */ 4318 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4319 } else { 4320 /* Normal discovery timeout should be > than ELS/CT timeout 4321 * FC spec states we need 3 * ratov for CT requests 4322 */ 4323 tmo = ((phba->fc_ratov * 3) + 3); 4324 } 4325 4326 4327 if (!timer_pending(&vport->fc_disctmo)) { 4328 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4329 "set disc timer: tmo:x%x state:x%x flg:x%x", 4330 tmo, vport->port_state, vport->fc_flag); 4331 } 4332 4333 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4334 spin_lock_irq(shost->host_lock); 4335 vport->fc_flag |= FC_DISC_TMO; 4336 spin_unlock_irq(shost->host_lock); 4337 4338 /* Start Discovery Timer state <hba_state> */ 4339 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4340 "0247 Start Discovery Timer state x%x " 4341 "Data: x%x x%lx x%x x%x\n", 4342 vport->port_state, tmo, 4343 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4344 vport->fc_adisc_cnt); 4345 4346 return; 4347 } 4348 4349 /* 4350 * Cancel rescue timer for Discovery / RSCN handling 4351 */ 4352 int 4353 lpfc_can_disctmo(struct lpfc_vport *vport) 4354 { 4355 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4356 unsigned long iflags; 4357 4358 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4359 "can disc timer: state:x%x rtry:x%x flg:x%x", 4360 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4361 4362 /* Turn off discovery timer if its running */ 4363 if (vport->fc_flag & FC_DISC_TMO) { 4364 spin_lock_irqsave(shost->host_lock, iflags); 4365 vport->fc_flag &= ~FC_DISC_TMO; 4366 spin_unlock_irqrestore(shost->host_lock, iflags); 4367 del_timer_sync(&vport->fc_disctmo); 4368 spin_lock_irqsave(&vport->work_port_lock, iflags); 4369 vport->work_port_events &= ~WORKER_DISC_TMO; 4370 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4371 } 4372 4373 /* Cancel Discovery Timer state <hba_state> */ 4374 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4375 "0248 Cancel Discovery Timer state x%x " 4376 "Data: x%x x%x x%x\n", 4377 vport->port_state, vport->fc_flag, 4378 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4379 return 0; 4380 } 4381 4382 /* 4383 * Check specified ring for outstanding IOCB on the SLI queue 4384 * Return true if iocb matches the specified nport 4385 */ 4386 int 4387 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4388 struct lpfc_sli_ring *pring, 4389 struct lpfc_iocbq *iocb, 4390 struct lpfc_nodelist *ndlp) 4391 { 4392 struct lpfc_sli *psli = &phba->sli; 4393 IOCB_t *icmd = &iocb->iocb; 4394 struct lpfc_vport *vport = ndlp->vport; 4395 4396 if (iocb->vport != vport) 4397 return 0; 4398 4399 if (pring->ringno == LPFC_ELS_RING) { 4400 switch (icmd->ulpCommand) { 4401 case CMD_GEN_REQUEST64_CR: 4402 if (iocb->context_un.ndlp == ndlp) 4403 return 1; 4404 case CMD_ELS_REQUEST64_CR: 4405 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4406 return 1; 4407 case CMD_XMIT_ELS_RSP64_CX: 4408 if (iocb->context1 == (uint8_t *) ndlp) 4409 return 1; 4410 } 4411 } else if (pring->ringno == psli->extra_ring) { 4412 4413 } else if (pring->ringno == psli->fcp_ring) { 4414 /* Skip match check if waiting to relogin to FCP target */ 4415 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4416 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4417 return 0; 4418 } 4419 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4420 return 1; 4421 } 4422 } else if (pring->ringno == psli->next_ring) { 4423 4424 } 4425 return 0; 4426 } 4427 4428 /* 4429 * Free resources / clean up outstanding I/Os 4430 * associated with nlp_rpi in the LPFC_NODELIST entry. 4431 */ 4432 static int 4433 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4434 { 4435 LIST_HEAD(completions); 4436 struct lpfc_sli *psli; 4437 struct lpfc_sli_ring *pring; 4438 struct lpfc_iocbq *iocb, *next_iocb; 4439 uint32_t i; 4440 4441 lpfc_fabric_abort_nport(ndlp); 4442 4443 /* 4444 * Everything that matches on txcmplq will be returned 4445 * by firmware with a no rpi error. 4446 */ 4447 psli = &phba->sli; 4448 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4449 /* Now process each ring */ 4450 for (i = 0; i < psli->num_rings; i++) { 4451 pring = &psli->ring[i]; 4452 4453 spin_lock_irq(&phba->hbalock); 4454 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 4455 list) { 4456 /* 4457 * Check to see if iocb matches the nport we are 4458 * looking for 4459 */ 4460 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 4461 ndlp))) { 4462 /* It matches, so deque and call compl 4463 with an error */ 4464 list_move_tail(&iocb->list, 4465 &completions); 4466 } 4467 } 4468 spin_unlock_irq(&phba->hbalock); 4469 } 4470 } 4471 4472 /* Cancel all the IOCBs from the completions list */ 4473 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4474 IOERR_SLI_ABORTED); 4475 4476 return 0; 4477 } 4478 4479 /** 4480 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4481 * @phba: Pointer to HBA context object. 4482 * @pmb: Pointer to mailbox object. 4483 * 4484 * This function will issue an ELS LOGO command after completing 4485 * the UNREG_RPI. 4486 **/ 4487 static void 4488 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4489 { 4490 struct lpfc_vport *vport = pmb->vport; 4491 struct lpfc_nodelist *ndlp; 4492 4493 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4494 if (!ndlp) 4495 return; 4496 lpfc_issue_els_logo(vport, ndlp, 0); 4497 mempool_free(pmb, phba->mbox_mem_pool); 4498 } 4499 4500 /* 4501 * Free rpi associated with LPFC_NODELIST entry. 4502 * This routine is called from lpfc_freenode(), when we are removing 4503 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4504 * LOGO that completes successfully, and we are waiting to PLOGI back 4505 * to the remote NPort. In addition, it is called after we receive 4506 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4507 * we are waiting to PLOGI back to the remote NPort. 4508 */ 4509 int 4510 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4511 { 4512 struct lpfc_hba *phba = vport->phba; 4513 LPFC_MBOXQ_t *mbox; 4514 int rc, acc_plogi = 1; 4515 uint16_t rpi; 4516 4517 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4518 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4519 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4520 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4521 "3366 RPI x%x needs to be " 4522 "unregistered nlp_flag x%x " 4523 "did x%x\n", 4524 ndlp->nlp_rpi, ndlp->nlp_flag, 4525 ndlp->nlp_DID); 4526 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4527 if (mbox) { 4528 /* SLI4 ports require the physical rpi value. */ 4529 rpi = ndlp->nlp_rpi; 4530 if (phba->sli_rev == LPFC_SLI_REV4) 4531 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4532 4533 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4534 mbox->vport = vport; 4535 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4536 mbox->context1 = ndlp; 4537 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4538 } else { 4539 if (phba->sli_rev == LPFC_SLI_REV4 && 4540 (!(vport->load_flag & FC_UNLOADING)) && 4541 (bf_get(lpfc_sli_intf_if_type, 4542 &phba->sli4_hba.sli_intf) == 4543 LPFC_SLI_INTF_IF_TYPE_2)) { 4544 mbox->context1 = lpfc_nlp_get(ndlp); 4545 mbox->mbox_cmpl = 4546 lpfc_sli4_unreg_rpi_cmpl_clr; 4547 /* 4548 * accept PLOGIs after unreg_rpi_cmpl 4549 */ 4550 acc_plogi = 0; 4551 } else 4552 mbox->mbox_cmpl = 4553 lpfc_sli_def_mbox_cmpl; 4554 } 4555 4556 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4557 if (rc == MBX_NOT_FINISHED) { 4558 mempool_free(mbox, phba->mbox_mem_pool); 4559 acc_plogi = 1; 4560 } 4561 } 4562 lpfc_no_rpi(phba, ndlp); 4563 4564 if (phba->sli_rev != LPFC_SLI_REV4) 4565 ndlp->nlp_rpi = 0; 4566 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4567 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4568 if (acc_plogi) 4569 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4570 return 1; 4571 } 4572 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4573 return 0; 4574 } 4575 4576 /** 4577 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4578 * @phba: pointer to lpfc hba data structure. 4579 * 4580 * This routine is invoked to unregister all the currently registered RPIs 4581 * to the HBA. 4582 **/ 4583 void 4584 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4585 { 4586 struct lpfc_vport **vports; 4587 struct lpfc_nodelist *ndlp; 4588 struct Scsi_Host *shost; 4589 int i; 4590 4591 vports = lpfc_create_vport_work_array(phba); 4592 if (!vports) { 4593 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4594 "2884 Vport array allocation failed \n"); 4595 return; 4596 } 4597 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4598 shost = lpfc_shost_from_vport(vports[i]); 4599 spin_lock_irq(shost->host_lock); 4600 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4601 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4602 /* The mempool_alloc might sleep */ 4603 spin_unlock_irq(shost->host_lock); 4604 lpfc_unreg_rpi(vports[i], ndlp); 4605 spin_lock_irq(shost->host_lock); 4606 } 4607 } 4608 spin_unlock_irq(shost->host_lock); 4609 } 4610 lpfc_destroy_vport_work_array(phba, vports); 4611 } 4612 4613 void 4614 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4615 { 4616 struct lpfc_hba *phba = vport->phba; 4617 LPFC_MBOXQ_t *mbox; 4618 int rc; 4619 4620 if (phba->sli_rev == LPFC_SLI_REV4) { 4621 lpfc_sli4_unreg_all_rpis(vport); 4622 return; 4623 } 4624 4625 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4626 if (mbox) { 4627 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4628 mbox); 4629 mbox->vport = vport; 4630 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4631 mbox->context1 = NULL; 4632 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4633 if (rc != MBX_TIMEOUT) 4634 mempool_free(mbox, phba->mbox_mem_pool); 4635 4636 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4637 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4638 "1836 Could not issue " 4639 "unreg_login(all_rpis) status %d\n", rc); 4640 } 4641 } 4642 4643 void 4644 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4645 { 4646 struct lpfc_hba *phba = vport->phba; 4647 LPFC_MBOXQ_t *mbox; 4648 int rc; 4649 4650 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4651 if (mbox) { 4652 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4653 mbox); 4654 mbox->vport = vport; 4655 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4656 mbox->context1 = NULL; 4657 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4658 if (rc != MBX_TIMEOUT) 4659 mempool_free(mbox, phba->mbox_mem_pool); 4660 4661 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4662 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4663 "1815 Could not issue " 4664 "unreg_did (default rpis) status %d\n", 4665 rc); 4666 } 4667 } 4668 4669 /* 4670 * Free resources associated with LPFC_NODELIST entry 4671 * so it can be freed. 4672 */ 4673 static int 4674 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4675 { 4676 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4677 struct lpfc_hba *phba = vport->phba; 4678 LPFC_MBOXQ_t *mb, *nextmb; 4679 struct lpfc_dmabuf *mp; 4680 4681 /* Cleanup node for NPort <nlp_DID> */ 4682 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4683 "0900 Cleanup node for NPort x%x " 4684 "Data: x%x x%x x%x\n", 4685 ndlp->nlp_DID, ndlp->nlp_flag, 4686 ndlp->nlp_state, ndlp->nlp_rpi); 4687 if (NLP_CHK_FREE_REQ(ndlp)) { 4688 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4689 "0280 lpfc_cleanup_node: ndlp:x%p " 4690 "usgmap:x%x refcnt:%d\n", 4691 (void *)ndlp, ndlp->nlp_usg_map, 4692 atomic_read(&ndlp->kref.refcount)); 4693 lpfc_dequeue_node(vport, ndlp); 4694 } else { 4695 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4696 "0281 lpfc_cleanup_node: ndlp:x%p " 4697 "usgmap:x%x refcnt:%d\n", 4698 (void *)ndlp, ndlp->nlp_usg_map, 4699 atomic_read(&ndlp->kref.refcount)); 4700 lpfc_disable_node(vport, ndlp); 4701 } 4702 4703 4704 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4705 4706 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4707 if ((mb = phba->sli.mbox_active)) { 4708 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4709 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4710 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4711 mb->context2 = NULL; 4712 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4713 } 4714 } 4715 4716 spin_lock_irq(&phba->hbalock); 4717 /* Cleanup REG_LOGIN completions which are not yet processed */ 4718 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4719 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4720 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4721 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4722 continue; 4723 4724 mb->context2 = NULL; 4725 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4726 } 4727 4728 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4729 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4730 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4731 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4732 mp = (struct lpfc_dmabuf *) (mb->context1); 4733 if (mp) { 4734 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4735 kfree(mp); 4736 } 4737 list_del(&mb->list); 4738 mempool_free(mb, phba->mbox_mem_pool); 4739 /* We shall not invoke the lpfc_nlp_put to decrement 4740 * the ndlp reference count as we are in the process 4741 * of lpfc_nlp_release. 4742 */ 4743 } 4744 } 4745 spin_unlock_irq(&phba->hbalock); 4746 4747 lpfc_els_abort(phba, ndlp); 4748 4749 spin_lock_irq(shost->host_lock); 4750 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4751 spin_unlock_irq(shost->host_lock); 4752 4753 ndlp->nlp_last_elscmd = 0; 4754 del_timer_sync(&ndlp->nlp_delayfunc); 4755 4756 list_del_init(&ndlp->els_retry_evt.evt_listp); 4757 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4758 lpfc_cleanup_vports_rrqs(vport, ndlp); 4759 lpfc_unreg_rpi(vport, ndlp); 4760 4761 return 0; 4762 } 4763 4764 /* 4765 * Check to see if we can free the nlp back to the freelist. 4766 * If we are in the middle of using the nlp in the discovery state 4767 * machine, defer the free till we reach the end of the state machine. 4768 */ 4769 static void 4770 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4771 { 4772 struct lpfc_hba *phba = vport->phba; 4773 struct lpfc_rport_data *rdata; 4774 struct fc_rport *rport; 4775 LPFC_MBOXQ_t *mbox; 4776 int rc; 4777 4778 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4779 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4780 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4781 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4782 /* For this case we need to cleanup the default rpi 4783 * allocated by the firmware. 4784 */ 4785 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4786 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4787 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4788 atomic_read(&ndlp->kref.refcount), 4789 ndlp->nlp_usg_map, ndlp); 4790 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4791 != NULL) { 4792 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4793 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4794 if (rc) { 4795 mempool_free(mbox, phba->mbox_mem_pool); 4796 } 4797 else { 4798 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4799 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4800 mbox->vport = vport; 4801 mbox->context2 = ndlp; 4802 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4803 if (rc == MBX_NOT_FINISHED) { 4804 mempool_free(mbox, phba->mbox_mem_pool); 4805 } 4806 } 4807 } 4808 } 4809 lpfc_cleanup_node(vport, ndlp); 4810 4811 /* 4812 * ndlp->rport must be set to NULL before it reaches here 4813 * i.e. break rport/node link before doing lpfc_nlp_put for 4814 * registered rport and then drop the reference of rport. 4815 */ 4816 if (ndlp->rport) { 4817 /* 4818 * extra lpfc_nlp_put dropped the reference of ndlp 4819 * for registered rport so need to cleanup rport 4820 */ 4821 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4822 "0940 removed node x%p DID x%x " 4823 " rport not null %p\n", 4824 ndlp, ndlp->nlp_DID, ndlp->rport); 4825 rport = ndlp->rport; 4826 rdata = rport->dd_data; 4827 rdata->pnode = NULL; 4828 ndlp->rport = NULL; 4829 put_device(&rport->dev); 4830 } 4831 } 4832 4833 static int 4834 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4835 uint32_t did) 4836 { 4837 D_ID mydid, ndlpdid, matchdid; 4838 4839 if (did == Bcast_DID) 4840 return 0; 4841 4842 /* First check for Direct match */ 4843 if (ndlp->nlp_DID == did) 4844 return 1; 4845 4846 /* Next check for area/domain identically equals 0 match */ 4847 mydid.un.word = vport->fc_myDID; 4848 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 4849 return 0; 4850 } 4851 4852 matchdid.un.word = did; 4853 ndlpdid.un.word = ndlp->nlp_DID; 4854 if (matchdid.un.b.id == ndlpdid.un.b.id) { 4855 if ((mydid.un.b.domain == matchdid.un.b.domain) && 4856 (mydid.un.b.area == matchdid.un.b.area)) { 4857 /* This code is supposed to match the ID 4858 * for a private loop device that is 4859 * connect to fl_port. But we need to 4860 * check that the port did not just go 4861 * from pt2pt to fabric or we could end 4862 * up matching ndlp->nlp_DID 000001 to 4863 * fabric DID 0x20101 4864 */ 4865 if ((ndlpdid.un.b.domain == 0) && 4866 (ndlpdid.un.b.area == 0)) { 4867 if (ndlpdid.un.b.id && 4868 vport->phba->fc_topology == 4869 LPFC_TOPOLOGY_LOOP) 4870 return 1; 4871 } 4872 return 0; 4873 } 4874 4875 matchdid.un.word = ndlp->nlp_DID; 4876 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 4877 (mydid.un.b.area == ndlpdid.un.b.area)) { 4878 if ((matchdid.un.b.domain == 0) && 4879 (matchdid.un.b.area == 0)) { 4880 if (matchdid.un.b.id) 4881 return 1; 4882 } 4883 } 4884 } 4885 return 0; 4886 } 4887 4888 /* Search for a nodelist entry */ 4889 static struct lpfc_nodelist * 4890 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4891 { 4892 struct lpfc_nodelist *ndlp; 4893 uint32_t data1; 4894 4895 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4896 if (lpfc_matchdid(vport, ndlp, did)) { 4897 data1 = (((uint32_t) ndlp->nlp_state << 24) | 4898 ((uint32_t) ndlp->nlp_xri << 16) | 4899 ((uint32_t) ndlp->nlp_type << 8) | 4900 ((uint32_t) ndlp->nlp_rpi & 0xff)); 4901 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4902 "0929 FIND node DID " 4903 "Data: x%p x%x x%x x%x %p\n", 4904 ndlp, ndlp->nlp_DID, 4905 ndlp->nlp_flag, data1, 4906 ndlp->active_rrqs_xri_bitmap); 4907 return ndlp; 4908 } 4909 } 4910 4911 /* FIND node did <did> NOT FOUND */ 4912 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4913 "0932 FIND node did x%x NOT FOUND.\n", did); 4914 return NULL; 4915 } 4916 4917 struct lpfc_nodelist * 4918 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4919 { 4920 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4921 struct lpfc_nodelist *ndlp; 4922 unsigned long iflags; 4923 4924 spin_lock_irqsave(shost->host_lock, iflags); 4925 ndlp = __lpfc_findnode_did(vport, did); 4926 spin_unlock_irqrestore(shost->host_lock, iflags); 4927 return ndlp; 4928 } 4929 4930 struct lpfc_nodelist * 4931 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 4932 { 4933 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4934 struct lpfc_nodelist *ndlp; 4935 4936 ndlp = lpfc_findnode_did(vport, did); 4937 if (!ndlp) { 4938 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 4939 lpfc_rscn_payload_check(vport, did) == 0) 4940 return NULL; 4941 ndlp = (struct lpfc_nodelist *) 4942 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 4943 if (!ndlp) 4944 return NULL; 4945 lpfc_nlp_init(vport, ndlp, did); 4946 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4947 spin_lock_irq(shost->host_lock); 4948 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4949 spin_unlock_irq(shost->host_lock); 4950 return ndlp; 4951 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4952 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 4953 if (!ndlp) 4954 return NULL; 4955 spin_lock_irq(shost->host_lock); 4956 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4957 spin_unlock_irq(shost->host_lock); 4958 return ndlp; 4959 } 4960 4961 if ((vport->fc_flag & FC_RSCN_MODE) && 4962 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 4963 if (lpfc_rscn_payload_check(vport, did)) { 4964 /* If we've already received a PLOGI from this NPort 4965 * we don't need to try to discover it again. 4966 */ 4967 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 4968 return NULL; 4969 4970 /* Since this node is marked for discovery, 4971 * delay timeout is not needed. 4972 */ 4973 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4974 spin_lock_irq(shost->host_lock); 4975 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4976 spin_unlock_irq(shost->host_lock); 4977 } else 4978 ndlp = NULL; 4979 } else { 4980 /* If we've already received a PLOGI from this NPort, 4981 * or we are already in the process of discovery on it, 4982 * we don't need to try to discover it again. 4983 */ 4984 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 4985 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 4986 ndlp->nlp_flag & NLP_RCV_PLOGI) 4987 return NULL; 4988 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4989 spin_lock_irq(shost->host_lock); 4990 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4991 spin_unlock_irq(shost->host_lock); 4992 } 4993 return ndlp; 4994 } 4995 4996 /* Build a list of nodes to discover based on the loopmap */ 4997 void 4998 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 4999 { 5000 struct lpfc_hba *phba = vport->phba; 5001 int j; 5002 uint32_t alpa, index; 5003 5004 if (!lpfc_is_link_up(phba)) 5005 return; 5006 5007 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5008 return; 5009 5010 /* Check for loop map present or not */ 5011 if (phba->alpa_map[0]) { 5012 for (j = 1; j <= phba->alpa_map[0]; j++) { 5013 alpa = phba->alpa_map[j]; 5014 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5015 continue; 5016 lpfc_setup_disc_node(vport, alpa); 5017 } 5018 } else { 5019 /* No alpamap, so try all alpa's */ 5020 for (j = 0; j < FC_MAXLOOP; j++) { 5021 /* If cfg_scan_down is set, start from highest 5022 * ALPA (0xef) to lowest (0x1). 5023 */ 5024 if (vport->cfg_scan_down) 5025 index = j; 5026 else 5027 index = FC_MAXLOOP - j - 1; 5028 alpa = lpfcAlpaArray[index]; 5029 if ((vport->fc_myDID & 0xff) == alpa) 5030 continue; 5031 lpfc_setup_disc_node(vport, alpa); 5032 } 5033 } 5034 return; 5035 } 5036 5037 void 5038 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5039 { 5040 LPFC_MBOXQ_t *mbox; 5041 struct lpfc_sli *psli = &phba->sli; 5042 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 5043 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 5044 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 5045 int rc; 5046 5047 /* 5048 * if it's not a physical port or if we already send 5049 * clear_la then don't send it. 5050 */ 5051 if ((phba->link_state >= LPFC_CLEAR_LA) || 5052 (vport->port_type != LPFC_PHYSICAL_PORT) || 5053 (phba->sli_rev == LPFC_SLI_REV4)) 5054 return; 5055 5056 /* Link up discovery */ 5057 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5058 phba->link_state = LPFC_CLEAR_LA; 5059 lpfc_clear_la(phba, mbox); 5060 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5061 mbox->vport = vport; 5062 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5063 if (rc == MBX_NOT_FINISHED) { 5064 mempool_free(mbox, phba->mbox_mem_pool); 5065 lpfc_disc_flush_list(vport); 5066 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5067 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5068 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5069 phba->link_state = LPFC_HBA_ERROR; 5070 } 5071 } 5072 } 5073 5074 /* Reg_vpi to tell firmware to resume normal operations */ 5075 void 5076 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5077 { 5078 LPFC_MBOXQ_t *regvpimbox; 5079 5080 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5081 if (regvpimbox) { 5082 lpfc_reg_vpi(vport, regvpimbox); 5083 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5084 regvpimbox->vport = vport; 5085 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5086 == MBX_NOT_FINISHED) { 5087 mempool_free(regvpimbox, phba->mbox_mem_pool); 5088 } 5089 } 5090 } 5091 5092 /* Start Link up / RSCN discovery on NPR nodes */ 5093 void 5094 lpfc_disc_start(struct lpfc_vport *vport) 5095 { 5096 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5097 struct lpfc_hba *phba = vport->phba; 5098 uint32_t num_sent; 5099 uint32_t clear_la_pending; 5100 5101 if (!lpfc_is_link_up(phba)) { 5102 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5103 "3315 Link is not up %x\n", 5104 phba->link_state); 5105 return; 5106 } 5107 5108 if (phba->link_state == LPFC_CLEAR_LA) 5109 clear_la_pending = 1; 5110 else 5111 clear_la_pending = 0; 5112 5113 if (vport->port_state < LPFC_VPORT_READY) 5114 vport->port_state = LPFC_DISC_AUTH; 5115 5116 lpfc_set_disctmo(vport); 5117 5118 vport->fc_prevDID = vport->fc_myDID; 5119 vport->num_disc_nodes = 0; 5120 5121 /* Start Discovery state <hba_state> */ 5122 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5123 "0202 Start Discovery hba state x%x " 5124 "Data: x%x x%x x%x\n", 5125 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5126 vport->fc_adisc_cnt); 5127 5128 /* First do ADISCs - if any */ 5129 num_sent = lpfc_els_disc_adisc(vport); 5130 5131 if (num_sent) 5132 return; 5133 5134 /* Register the VPI for SLI3, NPIV only. */ 5135 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5136 !(vport->fc_flag & FC_PT2PT) && 5137 !(vport->fc_flag & FC_RSCN_MODE) && 5138 (phba->sli_rev < LPFC_SLI_REV4)) { 5139 lpfc_issue_clear_la(phba, vport); 5140 lpfc_issue_reg_vpi(phba, vport); 5141 return; 5142 } 5143 5144 /* 5145 * For SLI2, we need to set port_state to READY and continue 5146 * discovery. 5147 */ 5148 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5149 /* If we get here, there is nothing to ADISC */ 5150 lpfc_issue_clear_la(phba, vport); 5151 5152 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5153 vport->num_disc_nodes = 0; 5154 /* go thru NPR nodes and issue ELS PLOGIs */ 5155 if (vport->fc_npr_cnt) 5156 lpfc_els_disc_plogi(vport); 5157 5158 if (!vport->num_disc_nodes) { 5159 spin_lock_irq(shost->host_lock); 5160 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5161 spin_unlock_irq(shost->host_lock); 5162 lpfc_can_disctmo(vport); 5163 } 5164 } 5165 vport->port_state = LPFC_VPORT_READY; 5166 } else { 5167 /* Next do PLOGIs - if any */ 5168 num_sent = lpfc_els_disc_plogi(vport); 5169 5170 if (num_sent) 5171 return; 5172 5173 if (vport->fc_flag & FC_RSCN_MODE) { 5174 /* Check to see if more RSCNs came in while we 5175 * were processing this one. 5176 */ 5177 if ((vport->fc_rscn_id_cnt == 0) && 5178 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5179 spin_lock_irq(shost->host_lock); 5180 vport->fc_flag &= ~FC_RSCN_MODE; 5181 spin_unlock_irq(shost->host_lock); 5182 lpfc_can_disctmo(vport); 5183 } else 5184 lpfc_els_handle_rscn(vport); 5185 } 5186 } 5187 return; 5188 } 5189 5190 /* 5191 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5192 * ring the match the sppecified nodelist. 5193 */ 5194 static void 5195 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5196 { 5197 LIST_HEAD(completions); 5198 struct lpfc_sli *psli; 5199 IOCB_t *icmd; 5200 struct lpfc_iocbq *iocb, *next_iocb; 5201 struct lpfc_sli_ring *pring; 5202 5203 psli = &phba->sli; 5204 pring = &psli->ring[LPFC_ELS_RING]; 5205 5206 /* Error matching iocb on txq or txcmplq 5207 * First check the txq. 5208 */ 5209 spin_lock_irq(&phba->hbalock); 5210 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5211 if (iocb->context1 != ndlp) { 5212 continue; 5213 } 5214 icmd = &iocb->iocb; 5215 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5216 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5217 5218 list_move_tail(&iocb->list, &completions); 5219 } 5220 } 5221 5222 /* Next check the txcmplq */ 5223 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5224 if (iocb->context1 != ndlp) { 5225 continue; 5226 } 5227 icmd = &iocb->iocb; 5228 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5229 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5230 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5231 } 5232 } 5233 spin_unlock_irq(&phba->hbalock); 5234 5235 /* Cancel all the IOCBs from the completions list */ 5236 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5237 IOERR_SLI_ABORTED); 5238 } 5239 5240 static void 5241 lpfc_disc_flush_list(struct lpfc_vport *vport) 5242 { 5243 struct lpfc_nodelist *ndlp, *next_ndlp; 5244 struct lpfc_hba *phba = vport->phba; 5245 5246 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5247 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5248 nlp_listp) { 5249 if (!NLP_CHK_NODE_ACT(ndlp)) 5250 continue; 5251 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5252 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5253 lpfc_free_tx(phba, ndlp); 5254 } 5255 } 5256 } 5257 } 5258 5259 void 5260 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5261 { 5262 lpfc_els_flush_rscn(vport); 5263 lpfc_els_flush_cmd(vport); 5264 lpfc_disc_flush_list(vport); 5265 } 5266 5267 /*****************************************************************************/ 5268 /* 5269 * NAME: lpfc_disc_timeout 5270 * 5271 * FUNCTION: Fibre Channel driver discovery timeout routine. 5272 * 5273 * EXECUTION ENVIRONMENT: interrupt only 5274 * 5275 * CALLED FROM: 5276 * Timer function 5277 * 5278 * RETURNS: 5279 * none 5280 */ 5281 /*****************************************************************************/ 5282 void 5283 lpfc_disc_timeout(unsigned long ptr) 5284 { 5285 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5286 struct lpfc_hba *phba = vport->phba; 5287 uint32_t tmo_posted; 5288 unsigned long flags = 0; 5289 5290 if (unlikely(!phba)) 5291 return; 5292 5293 spin_lock_irqsave(&vport->work_port_lock, flags); 5294 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5295 if (!tmo_posted) 5296 vport->work_port_events |= WORKER_DISC_TMO; 5297 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5298 5299 if (!tmo_posted) 5300 lpfc_worker_wake_up(phba); 5301 return; 5302 } 5303 5304 static void 5305 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5306 { 5307 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5308 struct lpfc_hba *phba = vport->phba; 5309 struct lpfc_sli *psli = &phba->sli; 5310 struct lpfc_nodelist *ndlp, *next_ndlp; 5311 LPFC_MBOXQ_t *initlinkmbox; 5312 int rc, clrlaerr = 0; 5313 5314 if (!(vport->fc_flag & FC_DISC_TMO)) 5315 return; 5316 5317 spin_lock_irq(shost->host_lock); 5318 vport->fc_flag &= ~FC_DISC_TMO; 5319 spin_unlock_irq(shost->host_lock); 5320 5321 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5322 "disc timeout: state:x%x rtry:x%x flg:x%x", 5323 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5324 5325 switch (vport->port_state) { 5326 5327 case LPFC_LOCAL_CFG_LINK: 5328 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 5329 * FAN 5330 */ 5331 /* FAN timeout */ 5332 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5333 "0221 FAN timeout\n"); 5334 /* Start discovery by sending FLOGI, clean up old rpis */ 5335 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5336 nlp_listp) { 5337 if (!NLP_CHK_NODE_ACT(ndlp)) 5338 continue; 5339 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5340 continue; 5341 if (ndlp->nlp_type & NLP_FABRIC) { 5342 /* Clean up the ndlp on Fabric connections */ 5343 lpfc_drop_node(vport, ndlp); 5344 5345 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5346 /* Fail outstanding IO now since device 5347 * is marked for PLOGI. 5348 */ 5349 lpfc_unreg_rpi(vport, ndlp); 5350 } 5351 } 5352 if (vport->port_state != LPFC_FLOGI) { 5353 if (phba->sli_rev <= LPFC_SLI_REV3) 5354 lpfc_initial_flogi(vport); 5355 else 5356 lpfc_issue_init_vfi(vport); 5357 return; 5358 } 5359 break; 5360 5361 case LPFC_FDISC: 5362 case LPFC_FLOGI: 5363 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5364 /* Initial FLOGI timeout */ 5365 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5366 "0222 Initial %s timeout\n", 5367 vport->vpi ? "FDISC" : "FLOGI"); 5368 5369 /* Assume no Fabric and go on with discovery. 5370 * Check for outstanding ELS FLOGI to abort. 5371 */ 5372 5373 /* FLOGI failed, so just use loop map to make discovery list */ 5374 lpfc_disc_list_loopmap(vport); 5375 5376 /* Start discovery */ 5377 lpfc_disc_start(vport); 5378 break; 5379 5380 case LPFC_FABRIC_CFG_LINK: 5381 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5382 NameServer login */ 5383 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5384 "0223 Timeout while waiting for " 5385 "NameServer login\n"); 5386 /* Next look for NameServer ndlp */ 5387 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5388 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5389 lpfc_els_abort(phba, ndlp); 5390 5391 /* ReStart discovery */ 5392 goto restart_disc; 5393 5394 case LPFC_NS_QRY: 5395 /* Check for wait for NameServer Rsp timeout */ 5396 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5397 "0224 NameServer Query timeout " 5398 "Data: x%x x%x\n", 5399 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5400 5401 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5402 /* Try it one more time */ 5403 vport->fc_ns_retry++; 5404 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 5405 vport->fc_ns_retry, 0); 5406 if (rc == 0) 5407 break; 5408 } 5409 vport->fc_ns_retry = 0; 5410 5411 restart_disc: 5412 /* 5413 * Discovery is over. 5414 * set port_state to PORT_READY if SLI2. 5415 * cmpl_reg_vpi will set port_state to READY for SLI3. 5416 */ 5417 if (phba->sli_rev < LPFC_SLI_REV4) { 5418 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5419 lpfc_issue_reg_vpi(phba, vport); 5420 else { 5421 lpfc_issue_clear_la(phba, vport); 5422 vport->port_state = LPFC_VPORT_READY; 5423 } 5424 } 5425 5426 /* Setup and issue mailbox INITIALIZE LINK command */ 5427 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5428 if (!initlinkmbox) { 5429 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5430 "0206 Device Discovery " 5431 "completion error\n"); 5432 phba->link_state = LPFC_HBA_ERROR; 5433 break; 5434 } 5435 5436 lpfc_linkdown(phba); 5437 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5438 phba->cfg_link_speed); 5439 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5440 initlinkmbox->vport = vport; 5441 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5442 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5443 lpfc_set_loopback_flag(phba); 5444 if (rc == MBX_NOT_FINISHED) 5445 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5446 5447 break; 5448 5449 case LPFC_DISC_AUTH: 5450 /* Node Authentication timeout */ 5451 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5452 "0227 Node Authentication timeout\n"); 5453 lpfc_disc_flush_list(vport); 5454 5455 /* 5456 * set port_state to PORT_READY if SLI2. 5457 * cmpl_reg_vpi will set port_state to READY for SLI3. 5458 */ 5459 if (phba->sli_rev < LPFC_SLI_REV4) { 5460 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5461 lpfc_issue_reg_vpi(phba, vport); 5462 else { /* NPIV Not enabled */ 5463 lpfc_issue_clear_la(phba, vport); 5464 vport->port_state = LPFC_VPORT_READY; 5465 } 5466 } 5467 break; 5468 5469 case LPFC_VPORT_READY: 5470 if (vport->fc_flag & FC_RSCN_MODE) { 5471 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5472 "0231 RSCN timeout Data: x%x " 5473 "x%x\n", 5474 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5475 5476 /* Cleanup any outstanding ELS commands */ 5477 lpfc_els_flush_cmd(vport); 5478 5479 lpfc_els_flush_rscn(vport); 5480 lpfc_disc_flush_list(vport); 5481 } 5482 break; 5483 5484 default: 5485 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5486 "0273 Unexpected discovery timeout, " 5487 "vport State x%x\n", vport->port_state); 5488 break; 5489 } 5490 5491 switch (phba->link_state) { 5492 case LPFC_CLEAR_LA: 5493 /* CLEAR LA timeout */ 5494 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5495 "0228 CLEAR LA timeout\n"); 5496 clrlaerr = 1; 5497 break; 5498 5499 case LPFC_LINK_UP: 5500 lpfc_issue_clear_la(phba, vport); 5501 /* Drop thru */ 5502 case LPFC_LINK_UNKNOWN: 5503 case LPFC_WARM_START: 5504 case LPFC_INIT_START: 5505 case LPFC_INIT_MBX_CMDS: 5506 case LPFC_LINK_DOWN: 5507 case LPFC_HBA_ERROR: 5508 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5509 "0230 Unexpected timeout, hba link " 5510 "state x%x\n", phba->link_state); 5511 clrlaerr = 1; 5512 break; 5513 5514 case LPFC_HBA_READY: 5515 break; 5516 } 5517 5518 if (clrlaerr) { 5519 lpfc_disc_flush_list(vport); 5520 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5521 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5522 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5523 vport->port_state = LPFC_VPORT_READY; 5524 } 5525 5526 return; 5527 } 5528 5529 /* 5530 * This routine handles processing a NameServer REG_LOGIN mailbox 5531 * command upon completion. It is setup in the LPFC_MBOXQ 5532 * as the completion routine when the command is 5533 * handed off to the SLI layer. 5534 */ 5535 void 5536 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5537 { 5538 MAILBOX_t *mb = &pmb->u.mb; 5539 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5540 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5541 struct lpfc_vport *vport = pmb->vport; 5542 5543 pmb->context1 = NULL; 5544 pmb->context2 = NULL; 5545 5546 if (phba->sli_rev < LPFC_SLI_REV4) 5547 ndlp->nlp_rpi = mb->un.varWords[0]; 5548 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5549 ndlp->nlp_type |= NLP_FABRIC; 5550 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5551 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5552 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5553 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5554 atomic_read(&ndlp->kref.refcount), 5555 ndlp->nlp_usg_map, ndlp); 5556 /* 5557 * Start issuing Fabric-Device Management Interface (FDMI) command to 5558 * 0xfffffa (FDMI well known port). 5559 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5560 * DPRT -> RPRT (vports) 5561 */ 5562 if (vport->port_type == LPFC_PHYSICAL_PORT) 5563 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5564 else 5565 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5566 5567 5568 /* decrement the node reference count held for this callback 5569 * function. 5570 */ 5571 lpfc_nlp_put(ndlp); 5572 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5573 kfree(mp); 5574 mempool_free(pmb, phba->mbox_mem_pool); 5575 5576 return; 5577 } 5578 5579 static int 5580 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5581 { 5582 uint16_t *rpi = param; 5583 5584 /* check for active node */ 5585 if (!NLP_CHK_NODE_ACT(ndlp)) 5586 return 0; 5587 5588 return ndlp->nlp_rpi == *rpi; 5589 } 5590 5591 static int 5592 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5593 { 5594 return memcmp(&ndlp->nlp_portname, param, 5595 sizeof(ndlp->nlp_portname)) == 0; 5596 } 5597 5598 static struct lpfc_nodelist * 5599 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5600 { 5601 struct lpfc_nodelist *ndlp; 5602 5603 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5604 if (filter(ndlp, param)) { 5605 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5606 "3185 FIND node filter %p DID " 5607 "Data: x%p x%x x%x\n", 5608 filter, ndlp, ndlp->nlp_DID, 5609 ndlp->nlp_flag); 5610 return ndlp; 5611 } 5612 } 5613 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5614 "3186 FIND node filter %p NOT FOUND.\n", filter); 5615 return NULL; 5616 } 5617 5618 /* 5619 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5620 * returns the node list element pointer else return NULL. 5621 */ 5622 struct lpfc_nodelist * 5623 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5624 { 5625 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5626 } 5627 5628 /* 5629 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5630 * returns the node element list pointer else return NULL. 5631 */ 5632 struct lpfc_nodelist * 5633 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5634 { 5635 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5636 struct lpfc_nodelist *ndlp; 5637 5638 spin_lock_irq(shost->host_lock); 5639 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5640 spin_unlock_irq(shost->host_lock); 5641 return ndlp; 5642 } 5643 5644 /* 5645 * This routine looks up the ndlp lists for the given RPI. If the rpi 5646 * is found, the routine returns the node element list pointer else 5647 * return NULL. 5648 */ 5649 struct lpfc_nodelist * 5650 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5651 { 5652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5653 struct lpfc_nodelist *ndlp; 5654 5655 spin_lock_irq(shost->host_lock); 5656 ndlp = __lpfc_findnode_rpi(vport, rpi); 5657 spin_unlock_irq(shost->host_lock); 5658 return ndlp; 5659 } 5660 5661 /** 5662 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5663 * @phba: pointer to lpfc hba data structure. 5664 * @vpi: the physical host virtual N_Port identifier. 5665 * 5666 * This routine finds a vport on a HBA (referred by @phba) through a 5667 * @vpi. The function walks the HBA's vport list and returns the address 5668 * of the vport with the matching @vpi. 5669 * 5670 * Return code 5671 * NULL - No vport with the matching @vpi found 5672 * Otherwise - Address to the vport with the matching @vpi. 5673 **/ 5674 struct lpfc_vport * 5675 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5676 { 5677 struct lpfc_vport *vport; 5678 unsigned long flags; 5679 int i = 0; 5680 5681 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5682 if (vpi > 0) { 5683 /* 5684 * Translate the physical vpi to the logical vpi. The 5685 * vport stores the logical vpi. 5686 */ 5687 for (i = 0; i < phba->max_vpi; i++) { 5688 if (vpi == phba->vpi_ids[i]) 5689 break; 5690 } 5691 5692 if (i >= phba->max_vpi) { 5693 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5694 "2936 Could not find Vport mapped " 5695 "to vpi %d\n", vpi); 5696 return NULL; 5697 } 5698 } 5699 5700 spin_lock_irqsave(&phba->hbalock, flags); 5701 list_for_each_entry(vport, &phba->port_list, listentry) { 5702 if (vport->vpi == i) { 5703 spin_unlock_irqrestore(&phba->hbalock, flags); 5704 return vport; 5705 } 5706 } 5707 spin_unlock_irqrestore(&phba->hbalock, flags); 5708 return NULL; 5709 } 5710 5711 void 5712 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5713 uint32_t did) 5714 { 5715 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5716 5717 lpfc_initialize_node(vport, ndlp, did); 5718 INIT_LIST_HEAD(&ndlp->nlp_listp); 5719 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5720 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 5721 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5722 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5723 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5724 ndlp->nlp_flag, 5725 atomic_read(&ndlp->kref.refcount), 5726 ndlp->nlp_usg_map, ndlp); 5727 5728 ndlp->active_rrqs_xri_bitmap = 5729 mempool_alloc(vport->phba->active_rrq_pool, 5730 GFP_KERNEL); 5731 if (ndlp->active_rrqs_xri_bitmap) 5732 memset(ndlp->active_rrqs_xri_bitmap, 0, 5733 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5734 } 5735 5736 5737 5738 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5739 "node init: did:x%x", 5740 ndlp->nlp_DID, 0, 0); 5741 5742 return; 5743 } 5744 5745 /* This routine releases all resources associated with a specifc NPort's ndlp 5746 * and mempool_free's the nodelist. 5747 */ 5748 static void 5749 lpfc_nlp_release(struct kref *kref) 5750 { 5751 struct lpfc_hba *phba; 5752 unsigned long flags; 5753 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5754 kref); 5755 5756 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5757 "node release: did:x%x flg:x%x type:x%x", 5758 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5759 5760 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5761 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5762 "usgmap:x%x refcnt:%d rpi:%x\n", 5763 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5764 atomic_read(&ndlp->kref.refcount), ndlp->nlp_rpi); 5765 5766 /* remove ndlp from action. */ 5767 lpfc_nlp_remove(ndlp->vport, ndlp); 5768 5769 /* clear the ndlp active flag for all release cases */ 5770 phba = ndlp->phba; 5771 spin_lock_irqsave(&phba->ndlp_lock, flags); 5772 NLP_CLR_NODE_ACT(ndlp); 5773 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5774 if (phba->sli_rev == LPFC_SLI_REV4) 5775 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5776 5777 /* free ndlp memory for final ndlp release */ 5778 if (NLP_CHK_FREE_REQ(ndlp)) { 5779 kfree(ndlp->lat_data); 5780 if (phba->sli_rev == LPFC_SLI_REV4) 5781 mempool_free(ndlp->active_rrqs_xri_bitmap, 5782 ndlp->phba->active_rrq_pool); 5783 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5784 } 5785 } 5786 5787 /* This routine bumps the reference count for a ndlp structure to ensure 5788 * that one discovery thread won't free a ndlp while another discovery thread 5789 * is using it. 5790 */ 5791 struct lpfc_nodelist * 5792 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5793 { 5794 struct lpfc_hba *phba; 5795 unsigned long flags; 5796 5797 if (ndlp) { 5798 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5799 "node get: did:x%x flg:x%x refcnt:x%x", 5800 ndlp->nlp_DID, ndlp->nlp_flag, 5801 atomic_read(&ndlp->kref.refcount)); 5802 /* The check of ndlp usage to prevent incrementing the 5803 * ndlp reference count that is in the process of being 5804 * released. 5805 */ 5806 phba = ndlp->phba; 5807 spin_lock_irqsave(&phba->ndlp_lock, flags); 5808 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5809 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5810 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5811 "0276 lpfc_nlp_get: ndlp:x%p " 5812 "usgmap:x%x refcnt:%d\n", 5813 (void *)ndlp, ndlp->nlp_usg_map, 5814 atomic_read(&ndlp->kref.refcount)); 5815 return NULL; 5816 } else 5817 kref_get(&ndlp->kref); 5818 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5819 } 5820 return ndlp; 5821 } 5822 5823 /* This routine decrements the reference count for a ndlp structure. If the 5824 * count goes to 0, this indicates the the associated nodelist should be 5825 * freed. Returning 1 indicates the ndlp resource has been released; on the 5826 * other hand, returning 0 indicates the ndlp resource has not been released 5827 * yet. 5828 */ 5829 int 5830 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 5831 { 5832 struct lpfc_hba *phba; 5833 unsigned long flags; 5834 5835 if (!ndlp) 5836 return 1; 5837 5838 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5839 "node put: did:x%x flg:x%x refcnt:x%x", 5840 ndlp->nlp_DID, ndlp->nlp_flag, 5841 atomic_read(&ndlp->kref.refcount)); 5842 phba = ndlp->phba; 5843 spin_lock_irqsave(&phba->ndlp_lock, flags); 5844 /* Check the ndlp memory free acknowledge flag to avoid the 5845 * possible race condition that kref_put got invoked again 5846 * after previous one has done ndlp memory free. 5847 */ 5848 if (NLP_CHK_FREE_ACK(ndlp)) { 5849 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5850 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5851 "0274 lpfc_nlp_put: ndlp:x%p " 5852 "usgmap:x%x refcnt:%d\n", 5853 (void *)ndlp, ndlp->nlp_usg_map, 5854 atomic_read(&ndlp->kref.refcount)); 5855 return 1; 5856 } 5857 /* Check the ndlp inactivate log flag to avoid the possible 5858 * race condition that kref_put got invoked again after ndlp 5859 * is already in inactivating state. 5860 */ 5861 if (NLP_CHK_IACT_REQ(ndlp)) { 5862 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5863 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5864 "0275 lpfc_nlp_put: ndlp:x%p " 5865 "usgmap:x%x refcnt:%d\n", 5866 (void *)ndlp, ndlp->nlp_usg_map, 5867 atomic_read(&ndlp->kref.refcount)); 5868 return 1; 5869 } 5870 /* For last put, mark the ndlp usage flags to make sure no 5871 * other kref_get and kref_put on the same ndlp shall get 5872 * in between the process when the final kref_put has been 5873 * invoked on this ndlp. 5874 */ 5875 if (atomic_read(&ndlp->kref.refcount) == 1) { 5876 /* Indicate ndlp is put to inactive state. */ 5877 NLP_SET_IACT_REQ(ndlp); 5878 /* Acknowledge ndlp memory free has been seen. */ 5879 if (NLP_CHK_FREE_REQ(ndlp)) 5880 NLP_SET_FREE_ACK(ndlp); 5881 } 5882 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5883 /* Note, the kref_put returns 1 when decrementing a reference 5884 * count that was 1, it invokes the release callback function, 5885 * but it still left the reference count as 1 (not actually 5886 * performs the last decrementation). Otherwise, it actually 5887 * decrements the reference count and returns 0. 5888 */ 5889 return kref_put(&ndlp->kref, lpfc_nlp_release); 5890 } 5891 5892 /* This routine free's the specified nodelist if it is not in use 5893 * by any other discovery thread. This routine returns 1 if the 5894 * ndlp has been freed. A return value of 0 indicates the ndlp is 5895 * not yet been released. 5896 */ 5897 int 5898 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 5899 { 5900 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5901 "node not used: did:x%x flg:x%x refcnt:x%x", 5902 ndlp->nlp_DID, ndlp->nlp_flag, 5903 atomic_read(&ndlp->kref.refcount)); 5904 if (atomic_read(&ndlp->kref.refcount) == 1) 5905 if (lpfc_nlp_put(ndlp)) 5906 return 1; 5907 return 0; 5908 } 5909 5910 /** 5911 * lpfc_fcf_inuse - Check if FCF can be unregistered. 5912 * @phba: Pointer to hba context object. 5913 * 5914 * This function iterate through all FC nodes associated 5915 * will all vports to check if there is any node with 5916 * fc_rports associated with it. If there is an fc_rport 5917 * associated with the node, then the node is either in 5918 * discovered state or its devloss_timer is pending. 5919 */ 5920 static int 5921 lpfc_fcf_inuse(struct lpfc_hba *phba) 5922 { 5923 struct lpfc_vport **vports; 5924 int i, ret = 0; 5925 struct lpfc_nodelist *ndlp; 5926 struct Scsi_Host *shost; 5927 5928 vports = lpfc_create_vport_work_array(phba); 5929 5930 /* If driver cannot allocate memory, indicate fcf is in use */ 5931 if (!vports) 5932 return 1; 5933 5934 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5935 shost = lpfc_shost_from_vport(vports[i]); 5936 spin_lock_irq(shost->host_lock); 5937 /* 5938 * IF the CVL_RCVD bit is not set then we have sent the 5939 * flogi. 5940 * If dev_loss fires while we are waiting we do not want to 5941 * unreg the fcf. 5942 */ 5943 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 5944 spin_unlock_irq(shost->host_lock); 5945 ret = 1; 5946 goto out; 5947 } 5948 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5949 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 5950 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 5951 ret = 1; 5952 spin_unlock_irq(shost->host_lock); 5953 goto out; 5954 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5955 ret = 1; 5956 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 5957 "2624 RPI %x DID %x flag %x " 5958 "still logged in\n", 5959 ndlp->nlp_rpi, ndlp->nlp_DID, 5960 ndlp->nlp_flag); 5961 } 5962 } 5963 spin_unlock_irq(shost->host_lock); 5964 } 5965 out: 5966 lpfc_destroy_vport_work_array(phba, vports); 5967 return ret; 5968 } 5969 5970 /** 5971 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 5972 * @phba: Pointer to hba context object. 5973 * @mboxq: Pointer to mailbox object. 5974 * 5975 * This function frees memory associated with the mailbox command. 5976 */ 5977 void 5978 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5979 { 5980 struct lpfc_vport *vport = mboxq->vport; 5981 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5982 5983 if (mboxq->u.mb.mbxStatus) { 5984 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5985 "2555 UNREG_VFI mbxStatus error x%x " 5986 "HBA state x%x\n", 5987 mboxq->u.mb.mbxStatus, vport->port_state); 5988 } 5989 spin_lock_irq(shost->host_lock); 5990 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 5991 spin_unlock_irq(shost->host_lock); 5992 mempool_free(mboxq, phba->mbox_mem_pool); 5993 return; 5994 } 5995 5996 /** 5997 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 5998 * @phba: Pointer to hba context object. 5999 * @mboxq: Pointer to mailbox object. 6000 * 6001 * This function frees memory associated with the mailbox command. 6002 */ 6003 static void 6004 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6005 { 6006 struct lpfc_vport *vport = mboxq->vport; 6007 6008 if (mboxq->u.mb.mbxStatus) { 6009 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6010 "2550 UNREG_FCFI mbxStatus error x%x " 6011 "HBA state x%x\n", 6012 mboxq->u.mb.mbxStatus, vport->port_state); 6013 } 6014 mempool_free(mboxq, phba->mbox_mem_pool); 6015 return; 6016 } 6017 6018 /** 6019 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6020 * @phba: Pointer to hba context object. 6021 * 6022 * This function prepare the HBA for unregistering the currently registered 6023 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6024 * VFIs. 6025 */ 6026 int 6027 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6028 { 6029 struct lpfc_vport **vports; 6030 struct lpfc_nodelist *ndlp; 6031 struct Scsi_Host *shost; 6032 int i = 0, rc; 6033 6034 /* Unregister RPIs */ 6035 if (lpfc_fcf_inuse(phba)) 6036 lpfc_unreg_hba_rpis(phba); 6037 6038 /* At this point, all discovery is aborted */ 6039 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6040 6041 /* Unregister VPIs */ 6042 vports = lpfc_create_vport_work_array(phba); 6043 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6044 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6045 /* Stop FLOGI/FDISC retries */ 6046 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6047 if (ndlp) 6048 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6049 lpfc_cleanup_pending_mbox(vports[i]); 6050 if (phba->sli_rev == LPFC_SLI_REV4) 6051 lpfc_sli4_unreg_all_rpis(vports[i]); 6052 lpfc_mbx_unreg_vpi(vports[i]); 6053 shost = lpfc_shost_from_vport(vports[i]); 6054 spin_lock_irq(shost->host_lock); 6055 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6056 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6057 spin_unlock_irq(shost->host_lock); 6058 } 6059 lpfc_destroy_vport_work_array(phba, vports); 6060 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6061 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6062 if (ndlp) 6063 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6064 lpfc_cleanup_pending_mbox(phba->pport); 6065 if (phba->sli_rev == LPFC_SLI_REV4) 6066 lpfc_sli4_unreg_all_rpis(phba->pport); 6067 lpfc_mbx_unreg_vpi(phba->pport); 6068 shost = lpfc_shost_from_vport(phba->pport); 6069 spin_lock_irq(shost->host_lock); 6070 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6071 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6072 spin_unlock_irq(shost->host_lock); 6073 } 6074 6075 /* Cleanup any outstanding ELS commands */ 6076 lpfc_els_flush_all_cmd(phba); 6077 6078 /* Unregister the physical port VFI */ 6079 rc = lpfc_issue_unreg_vfi(phba->pport); 6080 return rc; 6081 } 6082 6083 /** 6084 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6085 * @phba: Pointer to hba context object. 6086 * 6087 * This function issues synchronous unregister FCF mailbox command to HBA to 6088 * unregister the currently registered FCF record. The driver does not reset 6089 * the driver FCF usage state flags. 6090 * 6091 * Return 0 if successfully issued, none-zero otherwise. 6092 */ 6093 int 6094 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6095 { 6096 LPFC_MBOXQ_t *mbox; 6097 int rc; 6098 6099 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6100 if (!mbox) { 6101 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6102 "2551 UNREG_FCFI mbox allocation failed" 6103 "HBA state x%x\n", phba->pport->port_state); 6104 return -ENOMEM; 6105 } 6106 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6107 mbox->vport = phba->pport; 6108 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6109 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6110 6111 if (rc == MBX_NOT_FINISHED) { 6112 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6113 "2552 Unregister FCFI command failed rc x%x " 6114 "HBA state x%x\n", 6115 rc, phba->pport->port_state); 6116 return -EINVAL; 6117 } 6118 return 0; 6119 } 6120 6121 /** 6122 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6123 * @phba: Pointer to hba context object. 6124 * 6125 * This function unregisters the currently reigstered FCF. This function 6126 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6127 */ 6128 void 6129 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6130 { 6131 int rc; 6132 6133 /* Preparation for unregistering fcf */ 6134 rc = lpfc_unregister_fcf_prep(phba); 6135 if (rc) { 6136 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6137 "2748 Failed to prepare for unregistering " 6138 "HBA's FCF record: rc=%d\n", rc); 6139 return; 6140 } 6141 6142 /* Now, unregister FCF record and reset HBA FCF state */ 6143 rc = lpfc_sli4_unregister_fcf(phba); 6144 if (rc) 6145 return; 6146 /* Reset HBA FCF states after successful unregister FCF */ 6147 phba->fcf.fcf_flag = 0; 6148 phba->fcf.current_rec.flag = 0; 6149 6150 /* 6151 * If driver is not unloading, check if there is any other 6152 * FCF record that can be used for discovery. 6153 */ 6154 if ((phba->pport->load_flag & FC_UNLOADING) || 6155 (phba->link_state < LPFC_LINK_UP)) 6156 return; 6157 6158 /* This is considered as the initial FCF discovery scan */ 6159 spin_lock_irq(&phba->hbalock); 6160 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6161 spin_unlock_irq(&phba->hbalock); 6162 6163 /* Reset FCF roundrobin bmask for new discovery */ 6164 lpfc_sli4_clear_fcf_rr_bmask(phba); 6165 6166 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6167 6168 if (rc) { 6169 spin_lock_irq(&phba->hbalock); 6170 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6171 spin_unlock_irq(&phba->hbalock); 6172 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6173 "2553 lpfc_unregister_unused_fcf failed " 6174 "to read FCF record HBA state x%x\n", 6175 phba->pport->port_state); 6176 } 6177 } 6178 6179 /** 6180 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6181 * @phba: Pointer to hba context object. 6182 * 6183 * This function just unregisters the currently reigstered FCF. It does not 6184 * try to find another FCF for discovery. 6185 */ 6186 void 6187 lpfc_unregister_fcf(struct lpfc_hba *phba) 6188 { 6189 int rc; 6190 6191 /* Preparation for unregistering fcf */ 6192 rc = lpfc_unregister_fcf_prep(phba); 6193 if (rc) { 6194 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6195 "2749 Failed to prepare for unregistering " 6196 "HBA's FCF record: rc=%d\n", rc); 6197 return; 6198 } 6199 6200 /* Now, unregister FCF record and reset HBA FCF state */ 6201 rc = lpfc_sli4_unregister_fcf(phba); 6202 if (rc) 6203 return; 6204 /* Set proper HBA FCF states after successful unregister FCF */ 6205 spin_lock_irq(&phba->hbalock); 6206 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6207 spin_unlock_irq(&phba->hbalock); 6208 } 6209 6210 /** 6211 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6212 * @phba: Pointer to hba context object. 6213 * 6214 * This function check if there are any connected remote port for the FCF and 6215 * if all the devices are disconnected, this function unregister FCFI. 6216 * This function also tries to use another FCF for discovery. 6217 */ 6218 void 6219 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6220 { 6221 /* 6222 * If HBA is not running in FIP mode, if HBA does not support 6223 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6224 * registered, do nothing. 6225 */ 6226 spin_lock_irq(&phba->hbalock); 6227 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6228 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6229 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6230 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6231 (phba->pport->port_state == LPFC_FLOGI)) { 6232 spin_unlock_irq(&phba->hbalock); 6233 return; 6234 } 6235 spin_unlock_irq(&phba->hbalock); 6236 6237 if (lpfc_fcf_inuse(phba)) 6238 return; 6239 6240 lpfc_unregister_fcf_rescan(phba); 6241 } 6242 6243 /** 6244 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6245 * @phba: Pointer to hba context object. 6246 * @buff: Buffer containing the FCF connection table as in the config 6247 * region. 6248 * This function create driver data structure for the FCF connection 6249 * record table read from config region 23. 6250 */ 6251 static void 6252 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6253 uint8_t *buff) 6254 { 6255 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6256 struct lpfc_fcf_conn_hdr *conn_hdr; 6257 struct lpfc_fcf_conn_rec *conn_rec; 6258 uint32_t record_count; 6259 int i; 6260 6261 /* Free the current connect table */ 6262 list_for_each_entry_safe(conn_entry, next_conn_entry, 6263 &phba->fcf_conn_rec_list, list) { 6264 list_del_init(&conn_entry->list); 6265 kfree(conn_entry); 6266 } 6267 6268 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6269 record_count = conn_hdr->length * sizeof(uint32_t)/ 6270 sizeof(struct lpfc_fcf_conn_rec); 6271 6272 conn_rec = (struct lpfc_fcf_conn_rec *) 6273 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6274 6275 for (i = 0; i < record_count; i++) { 6276 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6277 continue; 6278 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6279 GFP_KERNEL); 6280 if (!conn_entry) { 6281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6282 "2566 Failed to allocate connection" 6283 " table entry\n"); 6284 return; 6285 } 6286 6287 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6288 sizeof(struct lpfc_fcf_conn_rec)); 6289 list_add_tail(&conn_entry->list, 6290 &phba->fcf_conn_rec_list); 6291 } 6292 6293 if (!list_empty(&phba->fcf_conn_rec_list)) { 6294 i = 0; 6295 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6296 list) { 6297 conn_rec = &conn_entry->conn_rec; 6298 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6299 "3345 FCF connection list rec[%02d]: " 6300 "flags:x%04x, vtag:x%04x, " 6301 "fabric_name:x%02x:%02x:%02x:%02x:" 6302 "%02x:%02x:%02x:%02x, " 6303 "switch_name:x%02x:%02x:%02x:%02x:" 6304 "%02x:%02x:%02x:%02x\n", i++, 6305 conn_rec->flags, conn_rec->vlan_tag, 6306 conn_rec->fabric_name[0], 6307 conn_rec->fabric_name[1], 6308 conn_rec->fabric_name[2], 6309 conn_rec->fabric_name[3], 6310 conn_rec->fabric_name[4], 6311 conn_rec->fabric_name[5], 6312 conn_rec->fabric_name[6], 6313 conn_rec->fabric_name[7], 6314 conn_rec->switch_name[0], 6315 conn_rec->switch_name[1], 6316 conn_rec->switch_name[2], 6317 conn_rec->switch_name[3], 6318 conn_rec->switch_name[4], 6319 conn_rec->switch_name[5], 6320 conn_rec->switch_name[6], 6321 conn_rec->switch_name[7]); 6322 } 6323 } 6324 } 6325 6326 /** 6327 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6328 * @phba: Pointer to hba context object. 6329 * @buff: Buffer containing the FCoE parameter data structure. 6330 * 6331 * This function update driver data structure with config 6332 * parameters read from config region 23. 6333 */ 6334 static void 6335 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6336 uint8_t *buff) 6337 { 6338 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6339 struct lpfc_fcoe_params *fcoe_param; 6340 6341 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6342 buff; 6343 fcoe_param = (struct lpfc_fcoe_params *) 6344 (buff + sizeof(struct lpfc_fip_param_hdr)); 6345 6346 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6347 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6348 return; 6349 6350 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6351 phba->valid_vlan = 1; 6352 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6353 0xFFF; 6354 } 6355 6356 phba->fc_map[0] = fcoe_param->fc_map[0]; 6357 phba->fc_map[1] = fcoe_param->fc_map[1]; 6358 phba->fc_map[2] = fcoe_param->fc_map[2]; 6359 return; 6360 } 6361 6362 /** 6363 * lpfc_get_rec_conf23 - Get a record type in config region data. 6364 * @buff: Buffer containing config region 23 data. 6365 * @size: Size of the data buffer. 6366 * @rec_type: Record type to be searched. 6367 * 6368 * This function searches config region data to find the beginning 6369 * of the record specified by record_type. If record found, this 6370 * function return pointer to the record else return NULL. 6371 */ 6372 static uint8_t * 6373 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6374 { 6375 uint32_t offset = 0, rec_length; 6376 6377 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6378 (size < sizeof(uint32_t))) 6379 return NULL; 6380 6381 rec_length = buff[offset + 1]; 6382 6383 /* 6384 * One TLV record has one word header and number of data words 6385 * specified in the rec_length field of the record header. 6386 */ 6387 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6388 <= size) { 6389 if (buff[offset] == rec_type) 6390 return &buff[offset]; 6391 6392 if (buff[offset] == LPFC_REGION23_LAST_REC) 6393 return NULL; 6394 6395 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6396 rec_length = buff[offset + 1]; 6397 } 6398 return NULL; 6399 } 6400 6401 /** 6402 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6403 * @phba: Pointer to lpfc_hba data structure. 6404 * @buff: Buffer containing config region 23 data. 6405 * @size: Size of the data buffer. 6406 * 6407 * This function parses the FCoE config parameters in config region 23 and 6408 * populate driver data structure with the parameters. 6409 */ 6410 void 6411 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6412 uint8_t *buff, 6413 uint32_t size) 6414 { 6415 uint32_t offset = 0; 6416 uint8_t *rec_ptr; 6417 6418 /* 6419 * If data size is less than 2 words signature and version cannot be 6420 * verified. 6421 */ 6422 if (size < 2*sizeof(uint32_t)) 6423 return; 6424 6425 /* Check the region signature first */ 6426 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6428 "2567 Config region 23 has bad signature\n"); 6429 return; 6430 } 6431 6432 offset += 4; 6433 6434 /* Check the data structure version */ 6435 if (buff[offset] != LPFC_REGION23_VERSION) { 6436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6437 "2568 Config region 23 has bad version\n"); 6438 return; 6439 } 6440 offset += 4; 6441 6442 /* Read FCoE param record */ 6443 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6444 size - offset, FCOE_PARAM_TYPE); 6445 if (rec_ptr) 6446 lpfc_read_fcoe_param(phba, rec_ptr); 6447 6448 /* Read FCF connection table */ 6449 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6450 size - offset, FCOE_CONN_TBL_TYPE); 6451 if (rec_ptr) 6452 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6453 6454 } 6455