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 #include <linux/lockdep.h> 29 30 #include <scsi/scsi.h> 31 #include <scsi/scsi_device.h> 32 #include <scsi/scsi_host.h> 33 #include <scsi/scsi_transport_fc.h> 34 35 #include "lpfc_hw4.h" 36 #include "lpfc_hw.h" 37 #include "lpfc_nl.h" 38 #include "lpfc_disc.h" 39 #include "lpfc_sli.h" 40 #include "lpfc_sli4.h" 41 #include "lpfc_scsi.h" 42 #include "lpfc.h" 43 #include "lpfc_logmsg.h" 44 #include "lpfc_crtn.h" 45 #include "lpfc_vport.h" 46 #include "lpfc_debugfs.h" 47 48 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 49 static uint8_t lpfcAlpaArray[] = { 50 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 51 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 52 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 53 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 54 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 55 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 56 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 57 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 58 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 59 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 60 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 61 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 62 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 63 }; 64 65 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 66 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 67 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 68 static int lpfc_fcf_inuse(struct lpfc_hba *); 69 70 void 71 lpfc_terminate_rport_io(struct fc_rport *rport) 72 { 73 struct lpfc_rport_data *rdata; 74 struct lpfc_nodelist * ndlp; 75 struct lpfc_hba *phba; 76 77 rdata = rport->dd_data; 78 ndlp = rdata->pnode; 79 80 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 81 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 82 printk(KERN_ERR "Cannot find remote node" 83 " to terminate I/O Data x%x\n", 84 rport->port_id); 85 return; 86 } 87 88 phba = ndlp->phba; 89 90 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 91 "rport terminate: sid:x%x did:x%x flg:x%x", 92 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 93 94 if (ndlp->nlp_sid != NLP_NO_SID) { 95 lpfc_sli_abort_iocb(ndlp->vport, 96 &phba->sli.ring[phba->sli.fcp_ring], 97 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 98 } 99 } 100 101 /* 102 * This function will be called when dev_loss_tmo fire. 103 */ 104 void 105 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 106 { 107 struct lpfc_rport_data *rdata; 108 struct lpfc_nodelist * ndlp; 109 struct lpfc_vport *vport; 110 struct Scsi_Host *shost; 111 struct lpfc_hba *phba; 112 struct lpfc_work_evt *evtp; 113 int put_node; 114 int put_rport; 115 116 rdata = rport->dd_data; 117 ndlp = rdata->pnode; 118 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 119 return; 120 121 vport = ndlp->vport; 122 phba = vport->phba; 123 124 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 125 "rport devlosscb: sid:x%x did:x%x flg:x%x", 126 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 127 128 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 129 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 130 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 131 132 /* Don't defer this if we are in the process of deleting the vport 133 * or unloading the driver. The unload will cleanup the node 134 * appropriately we just need to cleanup the ndlp rport info here. 135 */ 136 if (vport->load_flag & FC_UNLOADING) { 137 put_node = rdata->pnode != NULL; 138 put_rport = ndlp->rport != NULL; 139 rdata->pnode = NULL; 140 ndlp->rport = NULL; 141 if (put_node) 142 lpfc_nlp_put(ndlp); 143 if (put_rport) 144 put_device(&rport->dev); 145 return; 146 } 147 148 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 149 return; 150 151 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 152 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 153 "6789 rport name %llx != node port name %llx", 154 rport->port_name, 155 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 156 157 evtp = &ndlp->dev_loss_evt; 158 159 if (!list_empty(&evtp->evt_listp)) { 160 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 161 "6790 rport name %llx dev_loss_evt pending", 162 rport->port_name); 163 return; 164 } 165 166 shost = lpfc_shost_from_vport(vport); 167 spin_lock_irq(shost->host_lock); 168 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 169 spin_unlock_irq(shost->host_lock); 170 171 /* We need to hold the node by incrementing the reference 172 * count until this queued work is done 173 */ 174 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 175 176 spin_lock_irq(&phba->hbalock); 177 if (evtp->evt_arg1) { 178 evtp->evt = LPFC_EVT_DEV_LOSS; 179 list_add_tail(&evtp->evt_listp, &phba->work_list); 180 lpfc_worker_wake_up(phba); 181 } 182 spin_unlock_irq(&phba->hbalock); 183 184 return; 185 } 186 187 /** 188 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 189 * @ndlp: Pointer to remote node object. 190 * 191 * This function is called from the worker thread when devloss timeout timer 192 * expires. For SLI4 host, this routine shall return 1 when at lease one 193 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 194 * routine shall return 0 when there is no remote node is still in use of FCF 195 * when devloss timeout happened to this @ndlp. 196 **/ 197 static int 198 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 199 { 200 struct lpfc_rport_data *rdata; 201 struct fc_rport *rport; 202 struct lpfc_vport *vport; 203 struct lpfc_hba *phba; 204 struct Scsi_Host *shost; 205 uint8_t *name; 206 int put_node; 207 int warn_on = 0; 208 int fcf_inuse = 0; 209 210 rport = ndlp->rport; 211 vport = ndlp->vport; 212 shost = lpfc_shost_from_vport(vport); 213 214 spin_lock_irq(shost->host_lock); 215 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 216 spin_unlock_irq(shost->host_lock); 217 218 if (!rport) 219 return fcf_inuse; 220 221 name = (uint8_t *) &ndlp->nlp_portname; 222 phba = vport->phba; 223 224 if (phba->sli_rev == LPFC_SLI_REV4) 225 fcf_inuse = lpfc_fcf_inuse(phba); 226 227 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 228 "rport devlosstmo:did:x%x type:x%x id:x%x", 229 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 230 231 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 232 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 233 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 234 235 /* 236 * lpfc_nlp_remove if reached with dangling rport drops the 237 * reference. To make sure that does not happen clear rport 238 * pointer in ndlp before lpfc_nlp_put. 239 */ 240 rdata = rport->dd_data; 241 242 /* Don't defer this if we are in the process of deleting the vport 243 * or unloading the driver. The unload will cleanup the node 244 * appropriately we just need to cleanup the ndlp rport info here. 245 */ 246 if (vport->load_flag & FC_UNLOADING) { 247 if (ndlp->nlp_sid != NLP_NO_SID) { 248 /* flush the target */ 249 lpfc_sli_abort_iocb(vport, 250 &phba->sli.ring[phba->sli.fcp_ring], 251 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 252 } 253 put_node = rdata->pnode != NULL; 254 rdata->pnode = NULL; 255 ndlp->rport = NULL; 256 if (put_node) 257 lpfc_nlp_put(ndlp); 258 put_device(&rport->dev); 259 260 return fcf_inuse; 261 } 262 263 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 264 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 265 "0284 Devloss timeout Ignored on " 266 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 267 "NPort x%x\n", 268 *name, *(name+1), *(name+2), *(name+3), 269 *(name+4), *(name+5), *(name+6), *(name+7), 270 ndlp->nlp_DID); 271 return fcf_inuse; 272 } 273 274 put_node = rdata->pnode != NULL; 275 rdata->pnode = NULL; 276 ndlp->rport = NULL; 277 if (put_node) 278 lpfc_nlp_put(ndlp); 279 put_device(&rport->dev); 280 281 if (ndlp->nlp_type & NLP_FABRIC) 282 return fcf_inuse; 283 284 if (ndlp->nlp_sid != NLP_NO_SID) { 285 warn_on = 1; 286 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 287 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 288 } 289 290 if (warn_on) { 291 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 292 "0203 Devloss timeout on " 293 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 294 "NPort x%06x Data: x%x x%x x%x\n", 295 *name, *(name+1), *(name+2), *(name+3), 296 *(name+4), *(name+5), *(name+6), *(name+7), 297 ndlp->nlp_DID, ndlp->nlp_flag, 298 ndlp->nlp_state, ndlp->nlp_rpi); 299 } else { 300 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 301 "0204 Devloss timeout on " 302 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 303 "NPort x%06x Data: x%x x%x x%x\n", 304 *name, *(name+1), *(name+2), *(name+3), 305 *(name+4), *(name+5), *(name+6), *(name+7), 306 ndlp->nlp_DID, ndlp->nlp_flag, 307 ndlp->nlp_state, ndlp->nlp_rpi); 308 } 309 310 if (!(vport->load_flag & FC_UNLOADING) && 311 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 312 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 313 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 314 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 315 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 316 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 317 318 return fcf_inuse; 319 } 320 321 /** 322 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 323 * @phba: Pointer to hba context object. 324 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 325 * @nlp_did: remote node identifer with devloss timeout. 326 * 327 * This function is called from the worker thread after invoking devloss 328 * timeout handler and releasing the reference count for the ndlp with 329 * which the devloss timeout was handled for SLI4 host. For the devloss 330 * timeout of the last remote node which had been in use of FCF, when this 331 * routine is invoked, it shall be guaranteed that none of the remote are 332 * in-use of FCF. When devloss timeout to the last remote using the FCF, 333 * if the FIP engine is neither in FCF table scan process nor roundrobin 334 * failover process, the in-use FCF shall be unregistered. If the FIP 335 * engine is in FCF discovery process, the devloss timeout state shall 336 * be set for either the FCF table scan process or roundrobin failover 337 * process to unregister the in-use FCF. 338 **/ 339 static void 340 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 341 uint32_t nlp_did) 342 { 343 /* If devloss timeout happened to a remote node when FCF had no 344 * longer been in-use, do nothing. 345 */ 346 if (!fcf_inuse) 347 return; 348 349 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 350 spin_lock_irq(&phba->hbalock); 351 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 352 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 353 spin_unlock_irq(&phba->hbalock); 354 return; 355 } 356 phba->hba_flag |= HBA_DEVLOSS_TMO; 357 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 358 "2847 Last remote node (x%x) using " 359 "FCF devloss tmo\n", nlp_did); 360 } 361 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 362 spin_unlock_irq(&phba->hbalock); 363 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 364 "2868 Devloss tmo to FCF rediscovery " 365 "in progress\n"); 366 return; 367 } 368 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 369 spin_unlock_irq(&phba->hbalock); 370 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 371 "2869 Devloss tmo to idle FIP engine, " 372 "unreg in-use FCF and rescan.\n"); 373 /* Unregister in-use FCF and rescan */ 374 lpfc_unregister_fcf_rescan(phba); 375 return; 376 } 377 spin_unlock_irq(&phba->hbalock); 378 if (phba->hba_flag & FCF_TS_INPROG) 379 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 380 "2870 FCF table scan in progress\n"); 381 if (phba->hba_flag & FCF_RR_INPROG) 382 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 383 "2871 FLOGI roundrobin FCF failover " 384 "in progress\n"); 385 } 386 lpfc_unregister_unused_fcf(phba); 387 } 388 389 /** 390 * lpfc_alloc_fast_evt - Allocates data structure for posting event 391 * @phba: Pointer to hba context object. 392 * 393 * This function is called from the functions which need to post 394 * events from interrupt context. This function allocates data 395 * structure required for posting event. It also keeps track of 396 * number of events pending and prevent event storm when there are 397 * too many events. 398 **/ 399 struct lpfc_fast_path_event * 400 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 401 struct lpfc_fast_path_event *ret; 402 403 /* If there are lot of fast event do not exhaust memory due to this */ 404 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 405 return NULL; 406 407 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 408 GFP_ATOMIC); 409 if (ret) { 410 atomic_inc(&phba->fast_event_count); 411 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 412 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 413 } 414 return ret; 415 } 416 417 /** 418 * lpfc_free_fast_evt - Frees event data structure 419 * @phba: Pointer to hba context object. 420 * @evt: Event object which need to be freed. 421 * 422 * This function frees the data structure required for posting 423 * events. 424 **/ 425 void 426 lpfc_free_fast_evt(struct lpfc_hba *phba, 427 struct lpfc_fast_path_event *evt) { 428 429 atomic_dec(&phba->fast_event_count); 430 kfree(evt); 431 } 432 433 /** 434 * lpfc_send_fastpath_evt - Posts events generated from fast path 435 * @phba: Pointer to hba context object. 436 * @evtp: Event data structure. 437 * 438 * This function is called from worker thread, when the interrupt 439 * context need to post an event. This function posts the event 440 * to fc transport netlink interface. 441 **/ 442 static void 443 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 444 struct lpfc_work_evt *evtp) 445 { 446 unsigned long evt_category, evt_sub_category; 447 struct lpfc_fast_path_event *fast_evt_data; 448 char *evt_data; 449 uint32_t evt_data_size; 450 struct Scsi_Host *shost; 451 452 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 453 work_evt); 454 455 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 456 evt_sub_category = (unsigned long) fast_evt_data->un. 457 fabric_evt.subcategory; 458 shost = lpfc_shost_from_vport(fast_evt_data->vport); 459 if (evt_category == FC_REG_FABRIC_EVENT) { 460 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 461 evt_data = (char *) &fast_evt_data->un.read_check_error; 462 evt_data_size = sizeof(fast_evt_data->un. 463 read_check_error); 464 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 465 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 466 evt_data = (char *) &fast_evt_data->un.fabric_evt; 467 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 468 } else { 469 lpfc_free_fast_evt(phba, fast_evt_data); 470 return; 471 } 472 } else if (evt_category == FC_REG_SCSI_EVENT) { 473 switch (evt_sub_category) { 474 case LPFC_EVENT_QFULL: 475 case LPFC_EVENT_DEVBSY: 476 evt_data = (char *) &fast_evt_data->un.scsi_evt; 477 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 478 break; 479 case LPFC_EVENT_CHECK_COND: 480 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 481 evt_data_size = sizeof(fast_evt_data->un. 482 check_cond_evt); 483 break; 484 case LPFC_EVENT_VARQUEDEPTH: 485 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 queue_depth_evt); 488 break; 489 default: 490 lpfc_free_fast_evt(phba, fast_evt_data); 491 return; 492 } 493 } else { 494 lpfc_free_fast_evt(phba, fast_evt_data); 495 return; 496 } 497 498 fc_host_post_vendor_event(shost, 499 fc_get_event_number(), 500 evt_data_size, 501 evt_data, 502 LPFC_NL_VENDOR_ID); 503 504 lpfc_free_fast_evt(phba, fast_evt_data); 505 return; 506 } 507 508 static void 509 lpfc_work_list_done(struct lpfc_hba *phba) 510 { 511 struct lpfc_work_evt *evtp = NULL; 512 struct lpfc_nodelist *ndlp; 513 int free_evt; 514 int fcf_inuse; 515 uint32_t nlp_did; 516 517 spin_lock_irq(&phba->hbalock); 518 while (!list_empty(&phba->work_list)) { 519 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 520 evt_listp); 521 spin_unlock_irq(&phba->hbalock); 522 free_evt = 1; 523 switch (evtp->evt) { 524 case LPFC_EVT_ELS_RETRY: 525 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 526 lpfc_els_retry_delay_handler(ndlp); 527 free_evt = 0; /* evt is part of ndlp */ 528 /* decrement the node reference count held 529 * for this queued work 530 */ 531 lpfc_nlp_put(ndlp); 532 break; 533 case LPFC_EVT_DEV_LOSS: 534 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 535 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 536 free_evt = 0; 537 /* decrement the node reference count held for 538 * this queued work 539 */ 540 nlp_did = ndlp->nlp_DID; 541 lpfc_nlp_put(ndlp); 542 if (phba->sli_rev == LPFC_SLI_REV4) 543 lpfc_sli4_post_dev_loss_tmo_handler(phba, 544 fcf_inuse, 545 nlp_did); 546 break; 547 case LPFC_EVT_ONLINE: 548 if (phba->link_state < LPFC_LINK_DOWN) 549 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 550 else 551 *(int *) (evtp->evt_arg1) = 0; 552 complete((struct completion *)(evtp->evt_arg2)); 553 break; 554 case LPFC_EVT_OFFLINE_PREP: 555 if (phba->link_state >= LPFC_LINK_DOWN) 556 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 557 *(int *)(evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE: 561 lpfc_offline(phba); 562 lpfc_sli_brdrestart(phba); 563 *(int *)(evtp->evt_arg1) = 564 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 565 lpfc_unblock_mgmt_io(phba); 566 complete((struct completion *)(evtp->evt_arg2)); 567 break; 568 case LPFC_EVT_WARM_START: 569 lpfc_offline(phba); 570 lpfc_reset_barrier(phba); 571 lpfc_sli_brdreset(phba); 572 lpfc_hba_down_post(phba); 573 *(int *)(evtp->evt_arg1) = 574 lpfc_sli_brdready(phba, HS_MBRDY); 575 lpfc_unblock_mgmt_io(phba); 576 complete((struct completion *)(evtp->evt_arg2)); 577 break; 578 case LPFC_EVT_KILL: 579 lpfc_offline(phba); 580 *(int *)(evtp->evt_arg1) 581 = (phba->pport->stopped) 582 ? 0 : lpfc_sli_brdkill(phba); 583 lpfc_unblock_mgmt_io(phba); 584 complete((struct completion *)(evtp->evt_arg2)); 585 break; 586 case LPFC_EVT_FASTPATH_MGMT_EVT: 587 lpfc_send_fastpath_evt(phba, evtp); 588 free_evt = 0; 589 break; 590 case LPFC_EVT_RESET_HBA: 591 if (!(phba->pport->load_flag & FC_UNLOADING)) 592 lpfc_reset_hba(phba); 593 break; 594 } 595 if (free_evt) 596 kfree(evtp); 597 spin_lock_irq(&phba->hbalock); 598 } 599 spin_unlock_irq(&phba->hbalock); 600 601 } 602 603 static void 604 lpfc_work_done(struct lpfc_hba *phba) 605 { 606 struct lpfc_sli_ring *pring; 607 uint32_t ha_copy, status, control, work_port_events; 608 struct lpfc_vport **vports; 609 struct lpfc_vport *vport; 610 int i; 611 612 spin_lock_irq(&phba->hbalock); 613 ha_copy = phba->work_ha; 614 phba->work_ha = 0; 615 spin_unlock_irq(&phba->hbalock); 616 617 /* First, try to post the next mailbox command to SLI4 device */ 618 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 619 lpfc_sli4_post_async_mbox(phba); 620 621 if (ha_copy & HA_ERATT) 622 /* Handle the error attention event */ 623 lpfc_handle_eratt(phba); 624 625 if (ha_copy & HA_MBATT) 626 lpfc_sli_handle_mb_event(phba); 627 628 if (ha_copy & HA_LATT) 629 lpfc_handle_latt(phba); 630 631 /* Process SLI4 events */ 632 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 633 if (phba->hba_flag & HBA_RRQ_ACTIVE) 634 lpfc_handle_rrq_active(phba); 635 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 636 lpfc_sli4_fcp_xri_abort_event_proc(phba); 637 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 638 lpfc_sli4_els_xri_abort_event_proc(phba); 639 if (phba->hba_flag & ASYNC_EVENT) 640 lpfc_sli4_async_event_proc(phba); 641 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 642 spin_lock_irq(&phba->hbalock); 643 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 644 spin_unlock_irq(&phba->hbalock); 645 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 646 } 647 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 648 lpfc_sli4_fcf_redisc_event_proc(phba); 649 } 650 651 vports = lpfc_create_vport_work_array(phba); 652 if (vports != NULL) 653 for (i = 0; i <= phba->max_vports; i++) { 654 /* 655 * We could have no vports in array if unloading, so if 656 * this happens then just use the pport 657 */ 658 if (vports[i] == NULL && i == 0) 659 vport = phba->pport; 660 else 661 vport = vports[i]; 662 if (vport == NULL) 663 break; 664 spin_lock_irq(&vport->work_port_lock); 665 work_port_events = vport->work_port_events; 666 vport->work_port_events &= ~work_port_events; 667 spin_unlock_irq(&vport->work_port_lock); 668 if (work_port_events & WORKER_DISC_TMO) 669 lpfc_disc_timeout_handler(vport); 670 if (work_port_events & WORKER_ELS_TMO) 671 lpfc_els_timeout_handler(vport); 672 if (work_port_events & WORKER_HB_TMO) 673 lpfc_hb_timeout_handler(phba); 674 if (work_port_events & WORKER_MBOX_TMO) 675 lpfc_mbox_timeout_handler(phba); 676 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 677 lpfc_unblock_fabric_iocbs(phba); 678 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 679 lpfc_ramp_down_queue_handler(phba); 680 if (work_port_events & WORKER_DELAYED_DISC_TMO) 681 lpfc_delayed_disc_timeout_handler(vport); 682 } 683 lpfc_destroy_vport_work_array(phba, vports); 684 685 pring = &phba->sli.ring[LPFC_ELS_RING]; 686 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 687 status >>= (4*LPFC_ELS_RING); 688 if ((status & HA_RXMASK) || 689 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 690 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 691 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 692 pring->flag |= LPFC_DEFERRED_RING_EVENT; 693 /* Set the lpfc data pending flag */ 694 set_bit(LPFC_DATA_READY, &phba->data_flags); 695 } else { 696 if (phba->link_state >= LPFC_LINK_UP) { 697 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 698 lpfc_sli_handle_slow_ring_event(phba, pring, 699 (status & 700 HA_RXMASK)); 701 } 702 } 703 if ((phba->sli_rev == LPFC_SLI_REV4) && 704 (!list_empty(&pring->txq))) 705 lpfc_drain_txq(phba); 706 /* 707 * Turn on Ring interrupts 708 */ 709 if (phba->sli_rev <= LPFC_SLI_REV3) { 710 spin_lock_irq(&phba->hbalock); 711 control = readl(phba->HCregaddr); 712 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 713 lpfc_debugfs_slow_ring_trc(phba, 714 "WRK Enable ring: cntl:x%x hacopy:x%x", 715 control, ha_copy, 0); 716 717 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 718 writel(control, phba->HCregaddr); 719 readl(phba->HCregaddr); /* flush */ 720 } else { 721 lpfc_debugfs_slow_ring_trc(phba, 722 "WRK Ring ok: cntl:x%x hacopy:x%x", 723 control, ha_copy, 0); 724 } 725 spin_unlock_irq(&phba->hbalock); 726 } 727 } 728 lpfc_work_list_done(phba); 729 } 730 731 int 732 lpfc_do_work(void *p) 733 { 734 struct lpfc_hba *phba = p; 735 int rc; 736 737 set_user_nice(current, MIN_NICE); 738 current->flags |= PF_NOFREEZE; 739 phba->data_flags = 0; 740 741 while (!kthread_should_stop()) { 742 /* wait and check worker queue activities */ 743 rc = wait_event_interruptible(phba->work_waitq, 744 (test_and_clear_bit(LPFC_DATA_READY, 745 &phba->data_flags) 746 || kthread_should_stop())); 747 /* Signal wakeup shall terminate the worker thread */ 748 if (rc) { 749 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 750 "0433 Wakeup on signal: rc=x%x\n", rc); 751 break; 752 } 753 754 /* Attend pending lpfc data processing */ 755 lpfc_work_done(phba); 756 } 757 phba->worker_thread = NULL; 758 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 759 "0432 Worker thread stopped.\n"); 760 return 0; 761 } 762 763 /* 764 * This is only called to handle FC worker events. Since this a rare 765 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 766 * embedding it in the IOCB. 767 */ 768 int 769 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 770 uint32_t evt) 771 { 772 struct lpfc_work_evt *evtp; 773 unsigned long flags; 774 775 /* 776 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 777 * be queued to worker thread for processing 778 */ 779 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 780 if (!evtp) 781 return 0; 782 783 evtp->evt_arg1 = arg1; 784 evtp->evt_arg2 = arg2; 785 evtp->evt = evt; 786 787 spin_lock_irqsave(&phba->hbalock, flags); 788 list_add_tail(&evtp->evt_listp, &phba->work_list); 789 spin_unlock_irqrestore(&phba->hbalock, flags); 790 791 lpfc_worker_wake_up(phba); 792 793 return 1; 794 } 795 796 void 797 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 798 { 799 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 800 struct lpfc_hba *phba = vport->phba; 801 struct lpfc_nodelist *ndlp, *next_ndlp; 802 803 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 804 if (!NLP_CHK_NODE_ACT(ndlp)) 805 continue; 806 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 807 continue; 808 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 809 ((vport->port_type == LPFC_NPIV_PORT) && 810 (ndlp->nlp_DID == NameServer_DID))) 811 lpfc_unreg_rpi(vport, ndlp); 812 813 /* Leave Fabric nodes alone on link down */ 814 if ((phba->sli_rev < LPFC_SLI_REV4) && 815 (!remove && ndlp->nlp_type & NLP_FABRIC)) 816 continue; 817 lpfc_disc_state_machine(vport, ndlp, NULL, 818 remove 819 ? NLP_EVT_DEVICE_RM 820 : NLP_EVT_DEVICE_RECOVERY); 821 } 822 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 823 if (phba->sli_rev == LPFC_SLI_REV4) 824 lpfc_sli4_unreg_all_rpis(vport); 825 lpfc_mbx_unreg_vpi(vport); 826 spin_lock_irq(shost->host_lock); 827 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 828 spin_unlock_irq(shost->host_lock); 829 } 830 } 831 832 void 833 lpfc_port_link_failure(struct lpfc_vport *vport) 834 { 835 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 836 837 /* Cleanup any outstanding received buffers */ 838 lpfc_cleanup_rcv_buffers(vport); 839 840 /* Cleanup any outstanding RSCN activity */ 841 lpfc_els_flush_rscn(vport); 842 843 /* Cleanup any outstanding ELS commands */ 844 lpfc_els_flush_cmd(vport); 845 846 lpfc_cleanup_rpis(vport, 0); 847 848 /* Turn off discovery timer if its running */ 849 lpfc_can_disctmo(vport); 850 } 851 852 void 853 lpfc_linkdown_port(struct lpfc_vport *vport) 854 { 855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 856 857 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 858 859 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 860 "Link Down: state:x%x rtry:x%x flg:x%x", 861 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 862 863 lpfc_port_link_failure(vport); 864 865 /* Stop delayed Nport discovery */ 866 spin_lock_irq(shost->host_lock); 867 vport->fc_flag &= ~FC_DISC_DELAYED; 868 spin_unlock_irq(shost->host_lock); 869 del_timer_sync(&vport->delayed_disc_tmo); 870 } 871 872 int 873 lpfc_linkdown(struct lpfc_hba *phba) 874 { 875 struct lpfc_vport *vport = phba->pport; 876 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 877 struct lpfc_vport **vports; 878 LPFC_MBOXQ_t *mb; 879 int i; 880 881 if (phba->link_state == LPFC_LINK_DOWN) 882 return 0; 883 884 /* Block all SCSI stack I/Os */ 885 lpfc_scsi_dev_block(phba); 886 887 spin_lock_irq(&phba->hbalock); 888 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 889 spin_unlock_irq(&phba->hbalock); 890 if (phba->link_state > LPFC_LINK_DOWN) { 891 phba->link_state = LPFC_LINK_DOWN; 892 spin_lock_irq(shost->host_lock); 893 phba->pport->fc_flag &= ~FC_LBIT; 894 spin_unlock_irq(shost->host_lock); 895 } 896 vports = lpfc_create_vport_work_array(phba); 897 if (vports != NULL) 898 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 899 /* Issue a LINK DOWN event to all nodes */ 900 lpfc_linkdown_port(vports[i]); 901 } 902 lpfc_destroy_vport_work_array(phba, vports); 903 /* Clean up any firmware default rpi's */ 904 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 905 if (mb) { 906 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 907 mb->vport = vport; 908 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 909 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 910 == MBX_NOT_FINISHED) { 911 mempool_free(mb, phba->mbox_mem_pool); 912 } 913 } 914 915 /* Setup myDID for link up if we are in pt2pt mode */ 916 if (phba->pport->fc_flag & FC_PT2PT) { 917 phba->pport->fc_myDID = 0; 918 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 919 if (mb) { 920 lpfc_config_link(phba, mb); 921 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 922 mb->vport = vport; 923 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 924 == MBX_NOT_FINISHED) { 925 mempool_free(mb, phba->mbox_mem_pool); 926 } 927 } 928 spin_lock_irq(shost->host_lock); 929 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 930 spin_unlock_irq(shost->host_lock); 931 } 932 933 return 0; 934 } 935 936 static void 937 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 938 { 939 struct lpfc_nodelist *ndlp; 940 941 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 942 if (!NLP_CHK_NODE_ACT(ndlp)) 943 continue; 944 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 945 continue; 946 if (ndlp->nlp_type & NLP_FABRIC) { 947 /* On Linkup its safe to clean up the ndlp 948 * from Fabric connections. 949 */ 950 if (ndlp->nlp_DID != Fabric_DID) 951 lpfc_unreg_rpi(vport, ndlp); 952 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 953 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 954 /* Fail outstanding IO now since device is 955 * marked for PLOGI. 956 */ 957 lpfc_unreg_rpi(vport, ndlp); 958 } 959 } 960 } 961 962 static void 963 lpfc_linkup_port(struct lpfc_vport *vport) 964 { 965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 966 struct lpfc_hba *phba = vport->phba; 967 968 if ((vport->load_flag & FC_UNLOADING) != 0) 969 return; 970 971 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 972 "Link Up: top:x%x speed:x%x flg:x%x", 973 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 974 975 /* If NPIV is not enabled, only bring the physical port up */ 976 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 977 (vport != phba->pport)) 978 return; 979 980 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 981 982 spin_lock_irq(shost->host_lock); 983 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 984 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 985 vport->fc_flag |= FC_NDISC_ACTIVE; 986 vport->fc_ns_retry = 0; 987 spin_unlock_irq(shost->host_lock); 988 989 if (vport->fc_flag & FC_LBIT) 990 lpfc_linkup_cleanup_nodes(vport); 991 992 } 993 994 static int 995 lpfc_linkup(struct lpfc_hba *phba) 996 { 997 struct lpfc_vport **vports; 998 int i; 999 1000 phba->link_state = LPFC_LINK_UP; 1001 1002 /* Unblock fabric iocbs if they are blocked */ 1003 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1004 del_timer_sync(&phba->fabric_block_timer); 1005 1006 vports = lpfc_create_vport_work_array(phba); 1007 if (vports != NULL) 1008 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1009 lpfc_linkup_port(vports[i]); 1010 lpfc_destroy_vport_work_array(phba, vports); 1011 1012 return 0; 1013 } 1014 1015 /* 1016 * This routine handles processing a CLEAR_LA mailbox 1017 * command upon completion. It is setup in the LPFC_MBOXQ 1018 * as the completion routine when the command is 1019 * handed off to the SLI layer. 1020 */ 1021 static void 1022 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1023 { 1024 struct lpfc_vport *vport = pmb->vport; 1025 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1026 struct lpfc_sli *psli = &phba->sli; 1027 MAILBOX_t *mb = &pmb->u.mb; 1028 uint32_t control; 1029 1030 /* Since we don't do discovery right now, turn these off here */ 1031 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1032 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1033 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1034 1035 /* Check for error */ 1036 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1037 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1038 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1039 "0320 CLEAR_LA mbxStatus error x%x hba " 1040 "state x%x\n", 1041 mb->mbxStatus, vport->port_state); 1042 phba->link_state = LPFC_HBA_ERROR; 1043 goto out; 1044 } 1045 1046 if (vport->port_type == LPFC_PHYSICAL_PORT) 1047 phba->link_state = LPFC_HBA_READY; 1048 1049 spin_lock_irq(&phba->hbalock); 1050 psli->sli_flag |= LPFC_PROCESS_LA; 1051 control = readl(phba->HCregaddr); 1052 control |= HC_LAINT_ENA; 1053 writel(control, phba->HCregaddr); 1054 readl(phba->HCregaddr); /* flush */ 1055 spin_unlock_irq(&phba->hbalock); 1056 mempool_free(pmb, phba->mbox_mem_pool); 1057 return; 1058 1059 out: 1060 /* Device Discovery completes */ 1061 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1062 "0225 Device Discovery completes\n"); 1063 mempool_free(pmb, phba->mbox_mem_pool); 1064 1065 spin_lock_irq(shost->host_lock); 1066 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1067 spin_unlock_irq(shost->host_lock); 1068 1069 lpfc_can_disctmo(vport); 1070 1071 /* turn on Link Attention interrupts */ 1072 1073 spin_lock_irq(&phba->hbalock); 1074 psli->sli_flag |= LPFC_PROCESS_LA; 1075 control = readl(phba->HCregaddr); 1076 control |= HC_LAINT_ENA; 1077 writel(control, phba->HCregaddr); 1078 readl(phba->HCregaddr); /* flush */ 1079 spin_unlock_irq(&phba->hbalock); 1080 1081 return; 1082 } 1083 1084 1085 void 1086 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1087 { 1088 struct lpfc_vport *vport = pmb->vport; 1089 1090 if (pmb->u.mb.mbxStatus) 1091 goto out; 1092 1093 mempool_free(pmb, phba->mbox_mem_pool); 1094 1095 /* don't perform discovery for SLI4 loopback diagnostic test */ 1096 if ((phba->sli_rev == LPFC_SLI_REV4) && 1097 !(phba->hba_flag & HBA_FCOE_MODE) && 1098 (phba->link_flag & LS_LOOPBACK_MODE)) 1099 return; 1100 1101 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1102 vport->fc_flag & FC_PUBLIC_LOOP && 1103 !(vport->fc_flag & FC_LBIT)) { 1104 /* Need to wait for FAN - use discovery timer 1105 * for timeout. port_state is identically 1106 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1107 */ 1108 lpfc_set_disctmo(vport); 1109 return; 1110 } 1111 1112 /* Start discovery by sending a FLOGI. port_state is identically 1113 * LPFC_FLOGI while waiting for FLOGI cmpl 1114 */ 1115 if (vport->port_state != LPFC_FLOGI) 1116 lpfc_initial_flogi(vport); 1117 else if (vport->fc_flag & FC_PT2PT) 1118 lpfc_disc_start(vport); 1119 return; 1120 1121 out: 1122 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1123 "0306 CONFIG_LINK mbxStatus error x%x " 1124 "HBA state x%x\n", 1125 pmb->u.mb.mbxStatus, vport->port_state); 1126 mempool_free(pmb, phba->mbox_mem_pool); 1127 1128 lpfc_linkdown(phba); 1129 1130 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1131 "0200 CONFIG_LINK bad hba state x%x\n", 1132 vport->port_state); 1133 1134 lpfc_issue_clear_la(phba, vport); 1135 return; 1136 } 1137 1138 /** 1139 * lpfc_sli4_clear_fcf_rr_bmask 1140 * @phba pointer to the struct lpfc_hba for this port. 1141 * This fucnction resets the round robin bit mask and clears the 1142 * fcf priority list. The list deletions are done while holding the 1143 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1144 * from the lpfc_fcf_pri record. 1145 **/ 1146 void 1147 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1148 { 1149 struct lpfc_fcf_pri *fcf_pri; 1150 struct lpfc_fcf_pri *next_fcf_pri; 1151 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1152 spin_lock_irq(&phba->hbalock); 1153 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1154 &phba->fcf.fcf_pri_list, list) { 1155 list_del_init(&fcf_pri->list); 1156 fcf_pri->fcf_rec.flag = 0; 1157 } 1158 spin_unlock_irq(&phba->hbalock); 1159 } 1160 static void 1161 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1162 { 1163 struct lpfc_vport *vport = mboxq->vport; 1164 1165 if (mboxq->u.mb.mbxStatus) { 1166 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1167 "2017 REG_FCFI mbxStatus error x%x " 1168 "HBA state x%x\n", 1169 mboxq->u.mb.mbxStatus, vport->port_state); 1170 goto fail_out; 1171 } 1172 1173 /* Start FCoE discovery by sending a FLOGI. */ 1174 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1175 /* Set the FCFI registered flag */ 1176 spin_lock_irq(&phba->hbalock); 1177 phba->fcf.fcf_flag |= FCF_REGISTERED; 1178 spin_unlock_irq(&phba->hbalock); 1179 1180 /* If there is a pending FCoE event, restart FCF table scan. */ 1181 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1182 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1183 goto fail_out; 1184 1185 /* Mark successful completion of FCF table scan */ 1186 spin_lock_irq(&phba->hbalock); 1187 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1188 phba->hba_flag &= ~FCF_TS_INPROG; 1189 if (vport->port_state != LPFC_FLOGI) { 1190 phba->hba_flag |= FCF_RR_INPROG; 1191 spin_unlock_irq(&phba->hbalock); 1192 lpfc_issue_init_vfi(vport); 1193 goto out; 1194 } 1195 spin_unlock_irq(&phba->hbalock); 1196 goto out; 1197 1198 fail_out: 1199 spin_lock_irq(&phba->hbalock); 1200 phba->hba_flag &= ~FCF_RR_INPROG; 1201 spin_unlock_irq(&phba->hbalock); 1202 out: 1203 mempool_free(mboxq, phba->mbox_mem_pool); 1204 } 1205 1206 /** 1207 * lpfc_fab_name_match - Check if the fcf fabric name match. 1208 * @fab_name: pointer to fabric name. 1209 * @new_fcf_record: pointer to fcf record. 1210 * 1211 * This routine compare the fcf record's fabric name with provided 1212 * fabric name. If the fabric name are identical this function 1213 * returns 1 else return 0. 1214 **/ 1215 static uint32_t 1216 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1217 { 1218 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1219 return 0; 1220 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1221 return 0; 1222 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1223 return 0; 1224 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1225 return 0; 1226 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1227 return 0; 1228 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1229 return 0; 1230 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1231 return 0; 1232 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1233 return 0; 1234 return 1; 1235 } 1236 1237 /** 1238 * lpfc_sw_name_match - Check if the fcf switch name match. 1239 * @fab_name: pointer to fabric name. 1240 * @new_fcf_record: pointer to fcf record. 1241 * 1242 * This routine compare the fcf record's switch name with provided 1243 * switch name. If the switch name are identical this function 1244 * returns 1 else return 0. 1245 **/ 1246 static uint32_t 1247 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1248 { 1249 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1250 return 0; 1251 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1252 return 0; 1253 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1254 return 0; 1255 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1256 return 0; 1257 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1258 return 0; 1259 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1260 return 0; 1261 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1262 return 0; 1263 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1264 return 0; 1265 return 1; 1266 } 1267 1268 /** 1269 * lpfc_mac_addr_match - Check if the fcf mac address match. 1270 * @mac_addr: pointer to mac address. 1271 * @new_fcf_record: pointer to fcf record. 1272 * 1273 * This routine compare the fcf record's mac address with HBA's 1274 * FCF mac address. If the mac addresses are identical this function 1275 * returns 1 else return 0. 1276 **/ 1277 static uint32_t 1278 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1279 { 1280 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1281 return 0; 1282 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1283 return 0; 1284 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1285 return 0; 1286 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1287 return 0; 1288 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1289 return 0; 1290 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1291 return 0; 1292 return 1; 1293 } 1294 1295 static bool 1296 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1297 { 1298 return (curr_vlan_id == new_vlan_id); 1299 } 1300 1301 /** 1302 * lpfc_update_fcf_record - Update driver fcf record 1303 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1304 * @phba: pointer to lpfc hba data structure. 1305 * @fcf_index: Index for the lpfc_fcf_record. 1306 * @new_fcf_record: pointer to hba fcf record. 1307 * 1308 * This routine updates the driver FCF priority record from the new HBA FCF 1309 * record. This routine is called with the host lock held. 1310 **/ 1311 static void 1312 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1313 struct fcf_record *new_fcf_record 1314 ) 1315 { 1316 struct lpfc_fcf_pri *fcf_pri; 1317 1318 lockdep_assert_held(&phba->hbalock); 1319 1320 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1321 fcf_pri->fcf_rec.fcf_index = fcf_index; 1322 /* FCF record priority */ 1323 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1324 1325 } 1326 1327 /** 1328 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1329 * @fcf: pointer to driver fcf record. 1330 * @new_fcf_record: pointer to fcf record. 1331 * 1332 * This routine copies the FCF information from the FCF 1333 * record to lpfc_hba data structure. 1334 **/ 1335 static void 1336 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1337 struct fcf_record *new_fcf_record) 1338 { 1339 /* Fabric name */ 1340 fcf_rec->fabric_name[0] = 1341 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1342 fcf_rec->fabric_name[1] = 1343 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1344 fcf_rec->fabric_name[2] = 1345 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1346 fcf_rec->fabric_name[3] = 1347 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1348 fcf_rec->fabric_name[4] = 1349 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1350 fcf_rec->fabric_name[5] = 1351 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1352 fcf_rec->fabric_name[6] = 1353 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1354 fcf_rec->fabric_name[7] = 1355 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1356 /* Mac address */ 1357 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1358 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1359 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1360 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1361 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1362 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1363 /* FCF record index */ 1364 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1365 /* FCF record priority */ 1366 fcf_rec->priority = new_fcf_record->fip_priority; 1367 /* Switch name */ 1368 fcf_rec->switch_name[0] = 1369 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1370 fcf_rec->switch_name[1] = 1371 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1372 fcf_rec->switch_name[2] = 1373 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1374 fcf_rec->switch_name[3] = 1375 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1376 fcf_rec->switch_name[4] = 1377 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1378 fcf_rec->switch_name[5] = 1379 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1380 fcf_rec->switch_name[6] = 1381 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1382 fcf_rec->switch_name[7] = 1383 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1384 } 1385 1386 /** 1387 * lpfc_update_fcf_record - Update driver fcf record 1388 * @phba: pointer to lpfc hba data structure. 1389 * @fcf_rec: pointer to driver fcf record. 1390 * @new_fcf_record: pointer to hba fcf record. 1391 * @addr_mode: address mode to be set to the driver fcf record. 1392 * @vlan_id: vlan tag to be set to the driver fcf record. 1393 * @flag: flag bits to be set to the driver fcf record. 1394 * 1395 * This routine updates the driver FCF record from the new HBA FCF record 1396 * together with the address mode, vlan_id, and other informations. This 1397 * routine is called with the host lock held. 1398 **/ 1399 static void 1400 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1401 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1402 uint16_t vlan_id, uint32_t flag) 1403 { 1404 lockdep_assert_held(&phba->hbalock); 1405 1406 /* Copy the fields from the HBA's FCF record */ 1407 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1408 /* Update other fields of driver FCF record */ 1409 fcf_rec->addr_mode = addr_mode; 1410 fcf_rec->vlan_id = vlan_id; 1411 fcf_rec->flag |= (flag | RECORD_VALID); 1412 __lpfc_update_fcf_record_pri(phba, 1413 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1414 new_fcf_record); 1415 } 1416 1417 /** 1418 * lpfc_register_fcf - Register the FCF with hba. 1419 * @phba: pointer to lpfc hba data structure. 1420 * 1421 * This routine issues a register fcfi mailbox command to register 1422 * the fcf with HBA. 1423 **/ 1424 static void 1425 lpfc_register_fcf(struct lpfc_hba *phba) 1426 { 1427 LPFC_MBOXQ_t *fcf_mbxq; 1428 int rc; 1429 1430 spin_lock_irq(&phba->hbalock); 1431 /* If the FCF is not available do nothing. */ 1432 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1433 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1434 spin_unlock_irq(&phba->hbalock); 1435 return; 1436 } 1437 1438 /* The FCF is already registered, start discovery */ 1439 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1440 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1441 phba->hba_flag &= ~FCF_TS_INPROG; 1442 if (phba->pport->port_state != LPFC_FLOGI && 1443 phba->pport->fc_flag & FC_FABRIC) { 1444 phba->hba_flag |= FCF_RR_INPROG; 1445 spin_unlock_irq(&phba->hbalock); 1446 lpfc_initial_flogi(phba->pport); 1447 return; 1448 } 1449 spin_unlock_irq(&phba->hbalock); 1450 return; 1451 } 1452 spin_unlock_irq(&phba->hbalock); 1453 1454 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1455 if (!fcf_mbxq) { 1456 spin_lock_irq(&phba->hbalock); 1457 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1458 spin_unlock_irq(&phba->hbalock); 1459 return; 1460 } 1461 1462 lpfc_reg_fcfi(phba, fcf_mbxq); 1463 fcf_mbxq->vport = phba->pport; 1464 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1465 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1466 if (rc == MBX_NOT_FINISHED) { 1467 spin_lock_irq(&phba->hbalock); 1468 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1469 spin_unlock_irq(&phba->hbalock); 1470 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1471 } 1472 1473 return; 1474 } 1475 1476 /** 1477 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1478 * @phba: pointer to lpfc hba data structure. 1479 * @new_fcf_record: pointer to fcf record. 1480 * @boot_flag: Indicates if this record used by boot bios. 1481 * @addr_mode: The address mode to be used by this FCF 1482 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1483 * 1484 * This routine compare the fcf record with connect list obtained from the 1485 * config region to decide if this FCF can be used for SAN discovery. It returns 1486 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1487 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1488 * is used by boot bios and addr_mode will indicate the addressing mode to be 1489 * used for this FCF when the function returns. 1490 * If the FCF record need to be used with a particular vlan id, the vlan is 1491 * set in the vlan_id on return of the function. If not VLAN tagging need to 1492 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1493 **/ 1494 static int 1495 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1496 struct fcf_record *new_fcf_record, 1497 uint32_t *boot_flag, uint32_t *addr_mode, 1498 uint16_t *vlan_id) 1499 { 1500 struct lpfc_fcf_conn_entry *conn_entry; 1501 int i, j, fcf_vlan_id = 0; 1502 1503 /* Find the lowest VLAN id in the FCF record */ 1504 for (i = 0; i < 512; i++) { 1505 if (new_fcf_record->vlan_bitmap[i]) { 1506 fcf_vlan_id = i * 8; 1507 j = 0; 1508 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1509 j++; 1510 fcf_vlan_id++; 1511 } 1512 break; 1513 } 1514 } 1515 1516 /* FCF not valid/available or solicitation in progress */ 1517 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1518 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1519 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1520 return 0; 1521 1522 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1523 *boot_flag = 0; 1524 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1525 new_fcf_record); 1526 if (phba->valid_vlan) 1527 *vlan_id = phba->vlan_id; 1528 else 1529 *vlan_id = LPFC_FCOE_NULL_VID; 1530 return 1; 1531 } 1532 1533 /* 1534 * If there are no FCF connection table entry, driver connect to all 1535 * FCFs. 1536 */ 1537 if (list_empty(&phba->fcf_conn_rec_list)) { 1538 *boot_flag = 0; 1539 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1540 new_fcf_record); 1541 1542 /* 1543 * When there are no FCF connect entries, use driver's default 1544 * addressing mode - FPMA. 1545 */ 1546 if (*addr_mode & LPFC_FCF_FPMA) 1547 *addr_mode = LPFC_FCF_FPMA; 1548 1549 /* If FCF record report a vlan id use that vlan id */ 1550 if (fcf_vlan_id) 1551 *vlan_id = fcf_vlan_id; 1552 else 1553 *vlan_id = LPFC_FCOE_NULL_VID; 1554 return 1; 1555 } 1556 1557 list_for_each_entry(conn_entry, 1558 &phba->fcf_conn_rec_list, list) { 1559 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1560 continue; 1561 1562 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1563 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1564 new_fcf_record)) 1565 continue; 1566 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1567 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1568 new_fcf_record)) 1569 continue; 1570 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1571 /* 1572 * If the vlan bit map does not have the bit set for the 1573 * vlan id to be used, then it is not a match. 1574 */ 1575 if (!(new_fcf_record->vlan_bitmap 1576 [conn_entry->conn_rec.vlan_tag / 8] & 1577 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1578 continue; 1579 } 1580 1581 /* 1582 * If connection record does not support any addressing mode, 1583 * skip the FCF record. 1584 */ 1585 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1586 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1587 continue; 1588 1589 /* 1590 * Check if the connection record specifies a required 1591 * addressing mode. 1592 */ 1593 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1594 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1595 1596 /* 1597 * If SPMA required but FCF not support this continue. 1598 */ 1599 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1600 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1601 new_fcf_record) & LPFC_FCF_SPMA)) 1602 continue; 1603 1604 /* 1605 * If FPMA required but FCF not support this continue. 1606 */ 1607 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1608 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1609 new_fcf_record) & LPFC_FCF_FPMA)) 1610 continue; 1611 } 1612 1613 /* 1614 * This fcf record matches filtering criteria. 1615 */ 1616 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1617 *boot_flag = 1; 1618 else 1619 *boot_flag = 0; 1620 1621 /* 1622 * If user did not specify any addressing mode, or if the 1623 * preferred addressing mode specified by user is not supported 1624 * by FCF, allow fabric to pick the addressing mode. 1625 */ 1626 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1627 new_fcf_record); 1628 /* 1629 * If the user specified a required address mode, assign that 1630 * address mode 1631 */ 1632 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1633 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1634 *addr_mode = (conn_entry->conn_rec.flags & 1635 FCFCNCT_AM_SPMA) ? 1636 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1637 /* 1638 * If the user specified a preferred address mode, use the 1639 * addr mode only if FCF support the addr_mode. 1640 */ 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_SPMA)) 1645 *addr_mode = LPFC_FCF_SPMA; 1646 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1647 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1648 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1649 (*addr_mode & LPFC_FCF_FPMA)) 1650 *addr_mode = LPFC_FCF_FPMA; 1651 1652 /* If matching connect list has a vlan id, use it */ 1653 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1654 *vlan_id = conn_entry->conn_rec.vlan_tag; 1655 /* 1656 * If no vlan id is specified in connect list, use the vlan id 1657 * in the FCF record 1658 */ 1659 else if (fcf_vlan_id) 1660 *vlan_id = fcf_vlan_id; 1661 else 1662 *vlan_id = LPFC_FCOE_NULL_VID; 1663 1664 return 1; 1665 } 1666 1667 return 0; 1668 } 1669 1670 /** 1671 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1672 * @phba: pointer to lpfc hba data structure. 1673 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1674 * 1675 * This function check if there is any fcoe event pending while driver 1676 * scan FCF entries. If there is any pending event, it will restart the 1677 * FCF saning and return 1 else return 0. 1678 */ 1679 int 1680 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1681 { 1682 /* 1683 * If the Link is up and no FCoE events while in the 1684 * FCF discovery, no need to restart FCF discovery. 1685 */ 1686 if ((phba->link_state >= LPFC_LINK_UP) && 1687 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1688 return 0; 1689 1690 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1691 "2768 Pending link or FCF event during current " 1692 "handling of the previous event: link_state:x%x, " 1693 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1694 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1695 phba->fcoe_eventtag); 1696 1697 spin_lock_irq(&phba->hbalock); 1698 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1699 spin_unlock_irq(&phba->hbalock); 1700 1701 if (phba->link_state >= LPFC_LINK_UP) { 1702 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1703 "2780 Restart FCF table scan due to " 1704 "pending FCF event:evt_tag_at_scan:x%x, " 1705 "evt_tag_current:x%x\n", 1706 phba->fcoe_eventtag_at_fcf_scan, 1707 phba->fcoe_eventtag); 1708 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1709 } else { 1710 /* 1711 * Do not continue FCF discovery and clear FCF_TS_INPROG 1712 * flag 1713 */ 1714 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1715 "2833 Stop FCF discovery process due to link " 1716 "state change (x%x)\n", phba->link_state); 1717 spin_lock_irq(&phba->hbalock); 1718 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1719 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1720 spin_unlock_irq(&phba->hbalock); 1721 } 1722 1723 /* Unregister the currently registered FCF if required */ 1724 if (unreg_fcf) { 1725 spin_lock_irq(&phba->hbalock); 1726 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1727 spin_unlock_irq(&phba->hbalock); 1728 lpfc_sli4_unregister_fcf(phba); 1729 } 1730 return 1; 1731 } 1732 1733 /** 1734 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1735 * @phba: pointer to lpfc hba data structure. 1736 * @fcf_cnt: number of eligible fcf record seen so far. 1737 * 1738 * This function makes an running random selection decision on FCF record to 1739 * use through a sequence of @fcf_cnt eligible FCF records with equal 1740 * probability. To perform integer manunipulation of random numbers with 1741 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1742 * from prandom_u32() are taken as the random random number generated. 1743 * 1744 * Returns true when outcome is for the newly read FCF record should be 1745 * chosen; otherwise, return false when outcome is for keeping the previously 1746 * chosen FCF record. 1747 **/ 1748 static bool 1749 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1750 { 1751 uint32_t rand_num; 1752 1753 /* Get 16-bit uniform random number */ 1754 rand_num = 0xFFFF & prandom_u32(); 1755 1756 /* Decision with probability 1/fcf_cnt */ 1757 if ((fcf_cnt * rand_num) < 0xFFFF) 1758 return true; 1759 else 1760 return false; 1761 } 1762 1763 /** 1764 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1765 * @phba: pointer to lpfc hba data structure. 1766 * @mboxq: pointer to mailbox object. 1767 * @next_fcf_index: pointer to holder of next fcf index. 1768 * 1769 * This routine parses the non-embedded fcf mailbox command by performing the 1770 * necessarily error checking, non-embedded read FCF record mailbox command 1771 * SGE parsing, and endianness swapping. 1772 * 1773 * Returns the pointer to the new FCF record in the non-embedded mailbox 1774 * command DMA memory if successfully, other NULL. 1775 */ 1776 static struct fcf_record * 1777 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1778 uint16_t *next_fcf_index) 1779 { 1780 void *virt_addr; 1781 struct lpfc_mbx_sge sge; 1782 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1783 uint32_t shdr_status, shdr_add_status, if_type; 1784 union lpfc_sli4_cfg_shdr *shdr; 1785 struct fcf_record *new_fcf_record; 1786 1787 /* Get the first SGE entry from the non-embedded DMA memory. This 1788 * routine only uses a single SGE. 1789 */ 1790 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1791 if (unlikely(!mboxq->sge_array)) { 1792 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1793 "2524 Failed to get the non-embedded SGE " 1794 "virtual address\n"); 1795 return NULL; 1796 } 1797 virt_addr = mboxq->sge_array->addr[0]; 1798 1799 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1800 lpfc_sli_pcimem_bcopy(shdr, shdr, 1801 sizeof(union lpfc_sli4_cfg_shdr)); 1802 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1803 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1804 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1805 if (shdr_status || shdr_add_status) { 1806 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1807 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1808 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1809 "2726 READ_FCF_RECORD Indicates empty " 1810 "FCF table.\n"); 1811 else 1812 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1813 "2521 READ_FCF_RECORD mailbox failed " 1814 "with status x%x add_status x%x, " 1815 "mbx\n", shdr_status, shdr_add_status); 1816 return NULL; 1817 } 1818 1819 /* Interpreting the returned information of the FCF record */ 1820 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1821 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1822 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1823 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1824 new_fcf_record = (struct fcf_record *)(virt_addr + 1825 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1826 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1827 offsetof(struct fcf_record, vlan_bitmap)); 1828 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1829 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1830 1831 return new_fcf_record; 1832 } 1833 1834 /** 1835 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1836 * @phba: pointer to lpfc hba data structure. 1837 * @fcf_record: pointer to the fcf record. 1838 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1839 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1840 * 1841 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1842 * enabled. 1843 **/ 1844 static void 1845 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1846 struct fcf_record *fcf_record, 1847 uint16_t vlan_id, 1848 uint16_t next_fcf_index) 1849 { 1850 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1851 "2764 READ_FCF_RECORD:\n" 1852 "\tFCF_Index : x%x\n" 1853 "\tFCF_Avail : x%x\n" 1854 "\tFCF_Valid : x%x\n" 1855 "\tFCF_SOL : x%x\n" 1856 "\tFIP_Priority : x%x\n" 1857 "\tMAC_Provider : x%x\n" 1858 "\tLowest VLANID : x%x\n" 1859 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1860 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1861 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1862 "\tNext_FCF_Index: x%x\n", 1863 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1864 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1865 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1866 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1867 fcf_record->fip_priority, 1868 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1869 vlan_id, 1870 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1871 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1872 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1873 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1874 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1875 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1876 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1877 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1878 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1879 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1880 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1881 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1882 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1883 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1884 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1885 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1886 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1887 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1888 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1889 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1890 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1891 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1892 next_fcf_index); 1893 } 1894 1895 /** 1896 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1897 * @phba: pointer to lpfc hba data structure. 1898 * @fcf_rec: pointer to an existing FCF record. 1899 * @new_fcf_record: pointer to a new FCF record. 1900 * @new_vlan_id: vlan id from the new FCF record. 1901 * 1902 * This function performs matching test of a new FCF record against an existing 1903 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1904 * will not be used as part of the FCF record matching criteria. 1905 * 1906 * Returns true if all the fields matching, otherwise returns false. 1907 */ 1908 static bool 1909 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1910 struct lpfc_fcf_rec *fcf_rec, 1911 struct fcf_record *new_fcf_record, 1912 uint16_t new_vlan_id) 1913 { 1914 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1915 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1916 return false; 1917 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1918 return false; 1919 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1920 return false; 1921 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1922 return false; 1923 if (fcf_rec->priority != new_fcf_record->fip_priority) 1924 return false; 1925 return true; 1926 } 1927 1928 /** 1929 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1930 * @vport: Pointer to vport object. 1931 * @fcf_index: index to next fcf. 1932 * 1933 * This function processing the roundrobin fcf failover to next fcf index. 1934 * When this function is invoked, there will be a current fcf registered 1935 * for flogi. 1936 * Return: 0 for continue retrying flogi on currently registered fcf; 1937 * 1 for stop flogi on currently registered fcf; 1938 */ 1939 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1940 { 1941 struct lpfc_hba *phba = vport->phba; 1942 int rc; 1943 1944 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1945 spin_lock_irq(&phba->hbalock); 1946 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1947 spin_unlock_irq(&phba->hbalock); 1948 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1949 "2872 Devloss tmo with no eligible " 1950 "FCF, unregister in-use FCF (x%x) " 1951 "and rescan FCF table\n", 1952 phba->fcf.current_rec.fcf_indx); 1953 lpfc_unregister_fcf_rescan(phba); 1954 goto stop_flogi_current_fcf; 1955 } 1956 /* Mark the end to FLOGI roundrobin failover */ 1957 phba->hba_flag &= ~FCF_RR_INPROG; 1958 /* Allow action to new fcf asynchronous event */ 1959 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1960 spin_unlock_irq(&phba->hbalock); 1961 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1962 "2865 No FCF available, stop roundrobin FCF " 1963 "failover and change port state:x%x/x%x\n", 1964 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1965 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1966 goto stop_flogi_current_fcf; 1967 } else { 1968 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1969 "2794 Try FLOGI roundrobin FCF failover to " 1970 "(x%x)\n", fcf_index); 1971 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1972 if (rc) 1973 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1974 "2761 FLOGI roundrobin FCF failover " 1975 "failed (rc:x%x) to read FCF (x%x)\n", 1976 rc, phba->fcf.current_rec.fcf_indx); 1977 else 1978 goto stop_flogi_current_fcf; 1979 } 1980 return 0; 1981 1982 stop_flogi_current_fcf: 1983 lpfc_can_disctmo(vport); 1984 return 1; 1985 } 1986 1987 /** 1988 * lpfc_sli4_fcf_pri_list_del 1989 * @phba: pointer to lpfc hba data structure. 1990 * @fcf_index the index of the fcf record to delete 1991 * This routine checks the on list flag of the fcf_index to be deleted. 1992 * If it is one the list then it is removed from the list, and the flag 1993 * is cleared. This routine grab the hbalock before removing the fcf 1994 * record from the list. 1995 **/ 1996 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 1997 uint16_t fcf_index) 1998 { 1999 struct lpfc_fcf_pri *new_fcf_pri; 2000 2001 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2002 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2003 "3058 deleting idx x%x pri x%x flg x%x\n", 2004 fcf_index, new_fcf_pri->fcf_rec.priority, 2005 new_fcf_pri->fcf_rec.flag); 2006 spin_lock_irq(&phba->hbalock); 2007 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2008 if (phba->fcf.current_rec.priority == 2009 new_fcf_pri->fcf_rec.priority) 2010 phba->fcf.eligible_fcf_cnt--; 2011 list_del_init(&new_fcf_pri->list); 2012 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2013 } 2014 spin_unlock_irq(&phba->hbalock); 2015 } 2016 2017 /** 2018 * lpfc_sli4_set_fcf_flogi_fail 2019 * @phba: pointer to lpfc hba data structure. 2020 * @fcf_index the index of the fcf record to update 2021 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2022 * flag so the the round robin slection for the particular priority level 2023 * will try a different fcf record that does not have this bit set. 2024 * If the fcf record is re-read for any reason this flag is cleared brfore 2025 * adding it to the priority list. 2026 **/ 2027 void 2028 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2029 { 2030 struct lpfc_fcf_pri *new_fcf_pri; 2031 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2032 spin_lock_irq(&phba->hbalock); 2033 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2034 spin_unlock_irq(&phba->hbalock); 2035 } 2036 2037 /** 2038 * lpfc_sli4_fcf_pri_list_add 2039 * @phba: pointer to lpfc hba data structure. 2040 * @fcf_index the index of the fcf record to add 2041 * This routine checks the priority of the fcf_index to be added. 2042 * If it is a lower priority than the current head of the fcf_pri list 2043 * then it is added to the list in the right order. 2044 * If it is the same priority as the current head of the list then it 2045 * is added to the head of the list and its bit in the rr_bmask is set. 2046 * If the fcf_index to be added is of a higher priority than the current 2047 * head of the list then the rr_bmask is cleared, its bit is set in the 2048 * rr_bmask and it is added to the head of the list. 2049 * returns: 2050 * 0=success 1=failure 2051 **/ 2052 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2053 uint16_t fcf_index, 2054 struct fcf_record *new_fcf_record) 2055 { 2056 uint16_t current_fcf_pri; 2057 uint16_t last_index; 2058 struct lpfc_fcf_pri *fcf_pri; 2059 struct lpfc_fcf_pri *next_fcf_pri; 2060 struct lpfc_fcf_pri *new_fcf_pri; 2061 int ret; 2062 2063 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2064 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2065 "3059 adding idx x%x pri x%x flg x%x\n", 2066 fcf_index, new_fcf_record->fip_priority, 2067 new_fcf_pri->fcf_rec.flag); 2068 spin_lock_irq(&phba->hbalock); 2069 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2070 list_del_init(&new_fcf_pri->list); 2071 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2072 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2073 if (list_empty(&phba->fcf.fcf_pri_list)) { 2074 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2075 ret = lpfc_sli4_fcf_rr_index_set(phba, 2076 new_fcf_pri->fcf_rec.fcf_index); 2077 goto out; 2078 } 2079 2080 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2081 LPFC_SLI4_FCF_TBL_INDX_MAX); 2082 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2083 ret = 0; /* Empty rr list */ 2084 goto out; 2085 } 2086 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2087 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2088 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2089 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2090 memset(phba->fcf.fcf_rr_bmask, 0, 2091 sizeof(*phba->fcf.fcf_rr_bmask)); 2092 /* fcfs_at_this_priority_level = 1; */ 2093 phba->fcf.eligible_fcf_cnt = 1; 2094 } else 2095 /* fcfs_at_this_priority_level++; */ 2096 phba->fcf.eligible_fcf_cnt++; 2097 ret = lpfc_sli4_fcf_rr_index_set(phba, 2098 new_fcf_pri->fcf_rec.fcf_index); 2099 goto out; 2100 } 2101 2102 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2103 &phba->fcf.fcf_pri_list, list) { 2104 if (new_fcf_pri->fcf_rec.priority <= 2105 fcf_pri->fcf_rec.priority) { 2106 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2107 list_add(&new_fcf_pri->list, 2108 &phba->fcf.fcf_pri_list); 2109 else 2110 list_add(&new_fcf_pri->list, 2111 &((struct lpfc_fcf_pri *) 2112 fcf_pri->list.prev)->list); 2113 ret = 0; 2114 goto out; 2115 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2116 || new_fcf_pri->fcf_rec.priority < 2117 next_fcf_pri->fcf_rec.priority) { 2118 list_add(&new_fcf_pri->list, &fcf_pri->list); 2119 ret = 0; 2120 goto out; 2121 } 2122 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2123 continue; 2124 2125 } 2126 ret = 1; 2127 out: 2128 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2129 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2130 spin_unlock_irq(&phba->hbalock); 2131 return ret; 2132 } 2133 2134 /** 2135 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2136 * @phba: pointer to lpfc hba data structure. 2137 * @mboxq: pointer to mailbox object. 2138 * 2139 * This function iterates through all the fcf records available in 2140 * HBA and chooses the optimal FCF record for discovery. After finding 2141 * the FCF for discovery it registers the FCF record and kicks start 2142 * discovery. 2143 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2144 * use an FCF record which matches fabric name and mac address of the 2145 * currently used FCF record. 2146 * If the driver supports only one FCF, it will try to use the FCF record 2147 * used by BOOT_BIOS. 2148 */ 2149 void 2150 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2151 { 2152 struct fcf_record *new_fcf_record; 2153 uint32_t boot_flag, addr_mode; 2154 uint16_t fcf_index, next_fcf_index; 2155 struct lpfc_fcf_rec *fcf_rec = NULL; 2156 uint16_t vlan_id; 2157 bool select_new_fcf; 2158 int rc; 2159 2160 /* If there is pending FCoE event restart FCF table scan */ 2161 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2162 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2163 return; 2164 } 2165 2166 /* Parse the FCF record from the non-embedded mailbox command */ 2167 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2168 &next_fcf_index); 2169 if (!new_fcf_record) { 2170 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2171 "2765 Mailbox command READ_FCF_RECORD " 2172 "failed to retrieve a FCF record.\n"); 2173 /* Let next new FCF event trigger fast failover */ 2174 spin_lock_irq(&phba->hbalock); 2175 phba->hba_flag &= ~FCF_TS_INPROG; 2176 spin_unlock_irq(&phba->hbalock); 2177 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2178 return; 2179 } 2180 2181 /* Check the FCF record against the connection list */ 2182 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2183 &addr_mode, &vlan_id); 2184 2185 /* Log the FCF record information if turned on */ 2186 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2187 next_fcf_index); 2188 2189 /* 2190 * If the fcf record does not match with connect list entries 2191 * read the next entry; otherwise, this is an eligible FCF 2192 * record for roundrobin FCF failover. 2193 */ 2194 if (!rc) { 2195 lpfc_sli4_fcf_pri_list_del(phba, 2196 bf_get(lpfc_fcf_record_fcf_index, 2197 new_fcf_record)); 2198 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2199 "2781 FCF (x%x) failed connection " 2200 "list check: (x%x/x%x/%x)\n", 2201 bf_get(lpfc_fcf_record_fcf_index, 2202 new_fcf_record), 2203 bf_get(lpfc_fcf_record_fcf_avail, 2204 new_fcf_record), 2205 bf_get(lpfc_fcf_record_fcf_valid, 2206 new_fcf_record), 2207 bf_get(lpfc_fcf_record_fcf_sol, 2208 new_fcf_record)); 2209 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2210 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2211 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2212 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2213 phba->fcf.current_rec.fcf_indx) { 2214 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2215 "2862 FCF (x%x) matches property " 2216 "of in-use FCF (x%x)\n", 2217 bf_get(lpfc_fcf_record_fcf_index, 2218 new_fcf_record), 2219 phba->fcf.current_rec.fcf_indx); 2220 goto read_next_fcf; 2221 } 2222 /* 2223 * In case the current in-use FCF record becomes 2224 * invalid/unavailable during FCF discovery that 2225 * was not triggered by fast FCF failover process, 2226 * treat it as fast FCF failover. 2227 */ 2228 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2229 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2230 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2231 "2835 Invalid in-use FCF " 2232 "(x%x), enter FCF failover " 2233 "table scan.\n", 2234 phba->fcf.current_rec.fcf_indx); 2235 spin_lock_irq(&phba->hbalock); 2236 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2237 spin_unlock_irq(&phba->hbalock); 2238 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2239 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2240 LPFC_FCOE_FCF_GET_FIRST); 2241 return; 2242 } 2243 } 2244 goto read_next_fcf; 2245 } else { 2246 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2247 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2248 new_fcf_record); 2249 if (rc) 2250 goto read_next_fcf; 2251 } 2252 2253 /* 2254 * If this is not the first FCF discovery of the HBA, use last 2255 * FCF record for the discovery. The condition that a rescan 2256 * matches the in-use FCF record: fabric name, switch name, mac 2257 * address, and vlan_id. 2258 */ 2259 spin_lock_irq(&phba->hbalock); 2260 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2261 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2262 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2263 new_fcf_record, vlan_id)) { 2264 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2265 phba->fcf.current_rec.fcf_indx) { 2266 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2267 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2268 /* Stop FCF redisc wait timer */ 2269 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2270 phba); 2271 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2272 /* Fast failover, mark completed */ 2273 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2274 spin_unlock_irq(&phba->hbalock); 2275 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2276 "2836 New FCF matches in-use " 2277 "FCF (x%x), port_state:x%x, " 2278 "fc_flag:x%x\n", 2279 phba->fcf.current_rec.fcf_indx, 2280 phba->pport->port_state, 2281 phba->pport->fc_flag); 2282 goto out; 2283 } else 2284 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2285 "2863 New FCF (x%x) matches " 2286 "property of in-use FCF (x%x)\n", 2287 bf_get(lpfc_fcf_record_fcf_index, 2288 new_fcf_record), 2289 phba->fcf.current_rec.fcf_indx); 2290 } 2291 /* 2292 * Read next FCF record from HBA searching for the matching 2293 * with in-use record only if not during the fast failover 2294 * period. In case of fast failover period, it shall try to 2295 * determine whether the FCF record just read should be the 2296 * next candidate. 2297 */ 2298 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2299 spin_unlock_irq(&phba->hbalock); 2300 goto read_next_fcf; 2301 } 2302 } 2303 /* 2304 * Update on failover FCF record only if it's in FCF fast-failover 2305 * period; otherwise, update on current FCF record. 2306 */ 2307 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2308 fcf_rec = &phba->fcf.failover_rec; 2309 else 2310 fcf_rec = &phba->fcf.current_rec; 2311 2312 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2313 /* 2314 * If the driver FCF record does not have boot flag 2315 * set and new hba fcf record has boot flag set, use 2316 * the new hba fcf record. 2317 */ 2318 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2319 /* Choose this FCF record */ 2320 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2321 "2837 Update current FCF record " 2322 "(x%x) with new FCF record (x%x)\n", 2323 fcf_rec->fcf_indx, 2324 bf_get(lpfc_fcf_record_fcf_index, 2325 new_fcf_record)); 2326 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2327 addr_mode, vlan_id, BOOT_ENABLE); 2328 spin_unlock_irq(&phba->hbalock); 2329 goto read_next_fcf; 2330 } 2331 /* 2332 * If the driver FCF record has boot flag set and the 2333 * new hba FCF record does not have boot flag, read 2334 * the next FCF record. 2335 */ 2336 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2337 spin_unlock_irq(&phba->hbalock); 2338 goto read_next_fcf; 2339 } 2340 /* 2341 * If the new hba FCF record has lower priority value 2342 * than the driver FCF record, use the new record. 2343 */ 2344 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2345 /* Choose the new FCF record with lower priority */ 2346 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2347 "2838 Update current FCF record " 2348 "(x%x) with new FCF record (x%x)\n", 2349 fcf_rec->fcf_indx, 2350 bf_get(lpfc_fcf_record_fcf_index, 2351 new_fcf_record)); 2352 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2353 addr_mode, vlan_id, 0); 2354 /* Reset running random FCF selection count */ 2355 phba->fcf.eligible_fcf_cnt = 1; 2356 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2357 /* Update running random FCF selection count */ 2358 phba->fcf.eligible_fcf_cnt++; 2359 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2360 phba->fcf.eligible_fcf_cnt); 2361 if (select_new_fcf) { 2362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2363 "2839 Update current FCF record " 2364 "(x%x) with new FCF record (x%x)\n", 2365 fcf_rec->fcf_indx, 2366 bf_get(lpfc_fcf_record_fcf_index, 2367 new_fcf_record)); 2368 /* Choose the new FCF by random selection */ 2369 __lpfc_update_fcf_record(phba, fcf_rec, 2370 new_fcf_record, 2371 addr_mode, vlan_id, 0); 2372 } 2373 } 2374 spin_unlock_irq(&phba->hbalock); 2375 goto read_next_fcf; 2376 } 2377 /* 2378 * This is the first suitable FCF record, choose this record for 2379 * initial best-fit FCF. 2380 */ 2381 if (fcf_rec) { 2382 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2383 "2840 Update initial FCF candidate " 2384 "with FCF (x%x)\n", 2385 bf_get(lpfc_fcf_record_fcf_index, 2386 new_fcf_record)); 2387 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2388 addr_mode, vlan_id, (boot_flag ? 2389 BOOT_ENABLE : 0)); 2390 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2391 /* Setup initial running random FCF selection count */ 2392 phba->fcf.eligible_fcf_cnt = 1; 2393 } 2394 spin_unlock_irq(&phba->hbalock); 2395 goto read_next_fcf; 2396 2397 read_next_fcf: 2398 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2399 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2400 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2401 /* 2402 * Case of FCF fast failover scan 2403 */ 2404 2405 /* 2406 * It has not found any suitable FCF record, cancel 2407 * FCF scan inprogress, and do nothing 2408 */ 2409 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2410 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2411 "2782 No suitable FCF found: " 2412 "(x%x/x%x)\n", 2413 phba->fcoe_eventtag_at_fcf_scan, 2414 bf_get(lpfc_fcf_record_fcf_index, 2415 new_fcf_record)); 2416 spin_lock_irq(&phba->hbalock); 2417 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2418 phba->hba_flag &= ~FCF_TS_INPROG; 2419 spin_unlock_irq(&phba->hbalock); 2420 /* Unregister in-use FCF and rescan */ 2421 lpfc_printf_log(phba, KERN_INFO, 2422 LOG_FIP, 2423 "2864 On devloss tmo " 2424 "unreg in-use FCF and " 2425 "rescan FCF table\n"); 2426 lpfc_unregister_fcf_rescan(phba); 2427 return; 2428 } 2429 /* 2430 * Let next new FCF event trigger fast failover 2431 */ 2432 phba->hba_flag &= ~FCF_TS_INPROG; 2433 spin_unlock_irq(&phba->hbalock); 2434 return; 2435 } 2436 /* 2437 * It has found a suitable FCF record that is not 2438 * the same as in-use FCF record, unregister the 2439 * in-use FCF record, replace the in-use FCF record 2440 * with the new FCF record, mark FCF fast failover 2441 * completed, and then start register the new FCF 2442 * record. 2443 */ 2444 2445 /* Unregister the current in-use FCF record */ 2446 lpfc_unregister_fcf(phba); 2447 2448 /* Replace in-use record with the new record */ 2449 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2450 "2842 Replace in-use FCF (x%x) " 2451 "with failover FCF (x%x)\n", 2452 phba->fcf.current_rec.fcf_indx, 2453 phba->fcf.failover_rec.fcf_indx); 2454 memcpy(&phba->fcf.current_rec, 2455 &phba->fcf.failover_rec, 2456 sizeof(struct lpfc_fcf_rec)); 2457 /* 2458 * Mark the fast FCF failover rediscovery completed 2459 * and the start of the first round of the roundrobin 2460 * FCF failover. 2461 */ 2462 spin_lock_irq(&phba->hbalock); 2463 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2464 spin_unlock_irq(&phba->hbalock); 2465 /* Register to the new FCF record */ 2466 lpfc_register_fcf(phba); 2467 } else { 2468 /* 2469 * In case of transaction period to fast FCF failover, 2470 * do nothing when search to the end of the FCF table. 2471 */ 2472 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2473 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2474 return; 2475 2476 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2477 phba->fcf.fcf_flag & FCF_IN_USE) { 2478 /* 2479 * In case the current in-use FCF record no 2480 * longer existed during FCF discovery that 2481 * was not triggered by fast FCF failover 2482 * process, treat it as fast FCF failover. 2483 */ 2484 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2485 "2841 In-use FCF record (x%x) " 2486 "not reported, entering fast " 2487 "FCF failover mode scanning.\n", 2488 phba->fcf.current_rec.fcf_indx); 2489 spin_lock_irq(&phba->hbalock); 2490 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2491 spin_unlock_irq(&phba->hbalock); 2492 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2493 LPFC_FCOE_FCF_GET_FIRST); 2494 return; 2495 } 2496 /* Register to the new FCF record */ 2497 lpfc_register_fcf(phba); 2498 } 2499 } else 2500 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2501 return; 2502 2503 out: 2504 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2505 lpfc_register_fcf(phba); 2506 2507 return; 2508 } 2509 2510 /** 2511 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2512 * @phba: pointer to lpfc hba data structure. 2513 * @mboxq: pointer to mailbox object. 2514 * 2515 * This is the callback function for FLOGI failure roundrobin FCF failover 2516 * read FCF record mailbox command from the eligible FCF record bmask for 2517 * performing the failover. If the FCF read back is not valid/available, it 2518 * fails through to retrying FLOGI to the currently registered FCF again. 2519 * Otherwise, if the FCF read back is valid and available, it will set the 2520 * newly read FCF record to the failover FCF record, unregister currently 2521 * registered FCF record, copy the failover FCF record to the current 2522 * FCF record, and then register the current FCF record before proceeding 2523 * to trying FLOGI on the new failover FCF. 2524 */ 2525 void 2526 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2527 { 2528 struct fcf_record *new_fcf_record; 2529 uint32_t boot_flag, addr_mode; 2530 uint16_t next_fcf_index, fcf_index; 2531 uint16_t current_fcf_index; 2532 uint16_t vlan_id; 2533 int rc; 2534 2535 /* If link state is not up, stop the roundrobin failover process */ 2536 if (phba->link_state < LPFC_LINK_UP) { 2537 spin_lock_irq(&phba->hbalock); 2538 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2539 phba->hba_flag &= ~FCF_RR_INPROG; 2540 spin_unlock_irq(&phba->hbalock); 2541 goto out; 2542 } 2543 2544 /* Parse the FCF record from the non-embedded mailbox command */ 2545 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2546 &next_fcf_index); 2547 if (!new_fcf_record) { 2548 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2549 "2766 Mailbox command READ_FCF_RECORD " 2550 "failed to retrieve a FCF record. " 2551 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2552 phba->fcf.fcf_flag); 2553 lpfc_unregister_fcf_rescan(phba); 2554 goto out; 2555 } 2556 2557 /* Get the needed parameters from FCF record */ 2558 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2559 &addr_mode, &vlan_id); 2560 2561 /* Log the FCF record information if turned on */ 2562 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2563 next_fcf_index); 2564 2565 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2566 if (!rc) { 2567 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2568 "2848 Remove ineligible FCF (x%x) from " 2569 "from roundrobin bmask\n", fcf_index); 2570 /* Clear roundrobin bmask bit for ineligible FCF */ 2571 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2572 /* Perform next round of roundrobin FCF failover */ 2573 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2574 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2575 if (rc) 2576 goto out; 2577 goto error_out; 2578 } 2579 2580 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2581 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2582 "2760 Perform FLOGI roundrobin FCF failover: " 2583 "FCF (x%x) back to FCF (x%x)\n", 2584 phba->fcf.current_rec.fcf_indx, fcf_index); 2585 /* Wait 500 ms before retrying FLOGI to current FCF */ 2586 msleep(500); 2587 lpfc_issue_init_vfi(phba->pport); 2588 goto out; 2589 } 2590 2591 /* Upload new FCF record to the failover FCF record */ 2592 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2593 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2594 phba->fcf.failover_rec.fcf_indx, fcf_index); 2595 spin_lock_irq(&phba->hbalock); 2596 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2597 new_fcf_record, addr_mode, vlan_id, 2598 (boot_flag ? BOOT_ENABLE : 0)); 2599 spin_unlock_irq(&phba->hbalock); 2600 2601 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2602 2603 /* Unregister the current in-use FCF record */ 2604 lpfc_unregister_fcf(phba); 2605 2606 /* Replace in-use record with the new record */ 2607 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2608 sizeof(struct lpfc_fcf_rec)); 2609 2610 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2611 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2612 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2613 2614 error_out: 2615 lpfc_register_fcf(phba); 2616 out: 2617 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2618 } 2619 2620 /** 2621 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2622 * @phba: pointer to lpfc hba data structure. 2623 * @mboxq: pointer to mailbox object. 2624 * 2625 * This is the callback function of read FCF record mailbox command for 2626 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2627 * failover when a new FCF event happened. If the FCF read back is 2628 * valid/available and it passes the connection list check, it updates 2629 * the bmask for the eligible FCF record for roundrobin failover. 2630 */ 2631 void 2632 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2633 { 2634 struct fcf_record *new_fcf_record; 2635 uint32_t boot_flag, addr_mode; 2636 uint16_t fcf_index, next_fcf_index; 2637 uint16_t vlan_id; 2638 int rc; 2639 2640 /* If link state is not up, no need to proceed */ 2641 if (phba->link_state < LPFC_LINK_UP) 2642 goto out; 2643 2644 /* If FCF discovery period is over, no need to proceed */ 2645 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2646 goto out; 2647 2648 /* Parse the FCF record from the non-embedded mailbox command */ 2649 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2650 &next_fcf_index); 2651 if (!new_fcf_record) { 2652 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2653 "2767 Mailbox command READ_FCF_RECORD " 2654 "failed to retrieve a FCF record.\n"); 2655 goto out; 2656 } 2657 2658 /* Check the connection list for eligibility */ 2659 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2660 &addr_mode, &vlan_id); 2661 2662 /* Log the FCF record information if turned on */ 2663 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2664 next_fcf_index); 2665 2666 if (!rc) 2667 goto out; 2668 2669 /* Update the eligible FCF record index bmask */ 2670 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2671 2672 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2673 2674 out: 2675 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2676 } 2677 2678 /** 2679 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2680 * @phba: pointer to lpfc hba data structure. 2681 * @mboxq: pointer to mailbox data structure. 2682 * 2683 * This function handles completion of init vfi mailbox command. 2684 */ 2685 static void 2686 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2687 { 2688 struct lpfc_vport *vport = mboxq->vport; 2689 2690 /* 2691 * VFI not supported on interface type 0, just do the flogi 2692 * Also continue if the VFI is in use - just use the same one. 2693 */ 2694 if (mboxq->u.mb.mbxStatus && 2695 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2696 LPFC_SLI_INTF_IF_TYPE_0) && 2697 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2698 lpfc_printf_vlog(vport, KERN_ERR, 2699 LOG_MBOX, 2700 "2891 Init VFI mailbox failed 0x%x\n", 2701 mboxq->u.mb.mbxStatus); 2702 mempool_free(mboxq, phba->mbox_mem_pool); 2703 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2704 return; 2705 } 2706 2707 lpfc_initial_flogi(vport); 2708 mempool_free(mboxq, phba->mbox_mem_pool); 2709 return; 2710 } 2711 2712 /** 2713 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2714 * @vport: pointer to lpfc_vport data structure. 2715 * 2716 * This function issue a init_vfi mailbox command to initialize the VFI and 2717 * VPI for the physical port. 2718 */ 2719 void 2720 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2721 { 2722 LPFC_MBOXQ_t *mboxq; 2723 int rc; 2724 struct lpfc_hba *phba = vport->phba; 2725 2726 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2727 if (!mboxq) { 2728 lpfc_printf_vlog(vport, KERN_ERR, 2729 LOG_MBOX, "2892 Failed to allocate " 2730 "init_vfi mailbox\n"); 2731 return; 2732 } 2733 lpfc_init_vfi(mboxq, vport); 2734 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2735 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2736 if (rc == MBX_NOT_FINISHED) { 2737 lpfc_printf_vlog(vport, KERN_ERR, 2738 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2739 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2740 } 2741 } 2742 2743 /** 2744 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2745 * @phba: pointer to lpfc hba data structure. 2746 * @mboxq: pointer to mailbox data structure. 2747 * 2748 * This function handles completion of init vpi mailbox command. 2749 */ 2750 void 2751 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2752 { 2753 struct lpfc_vport *vport = mboxq->vport; 2754 struct lpfc_nodelist *ndlp; 2755 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2756 2757 if (mboxq->u.mb.mbxStatus) { 2758 lpfc_printf_vlog(vport, KERN_ERR, 2759 LOG_MBOX, 2760 "2609 Init VPI mailbox failed 0x%x\n", 2761 mboxq->u.mb.mbxStatus); 2762 mempool_free(mboxq, phba->mbox_mem_pool); 2763 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2764 return; 2765 } 2766 spin_lock_irq(shost->host_lock); 2767 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2768 spin_unlock_irq(shost->host_lock); 2769 2770 /* If this port is physical port or FDISC is done, do reg_vpi */ 2771 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2772 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2773 if (!ndlp) 2774 lpfc_printf_vlog(vport, KERN_ERR, 2775 LOG_DISCOVERY, 2776 "2731 Cannot find fabric " 2777 "controller node\n"); 2778 else 2779 lpfc_register_new_vport(phba, vport, ndlp); 2780 mempool_free(mboxq, phba->mbox_mem_pool); 2781 return; 2782 } 2783 2784 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2785 lpfc_initial_fdisc(vport); 2786 else { 2787 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2788 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2789 "2606 No NPIV Fabric support\n"); 2790 } 2791 mempool_free(mboxq, phba->mbox_mem_pool); 2792 return; 2793 } 2794 2795 /** 2796 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2797 * @vport: pointer to lpfc_vport data structure. 2798 * 2799 * This function issue a init_vpi mailbox command to initialize 2800 * VPI for the vport. 2801 */ 2802 void 2803 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2804 { 2805 LPFC_MBOXQ_t *mboxq; 2806 int rc, vpi; 2807 2808 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2809 vpi = lpfc_alloc_vpi(vport->phba); 2810 if (!vpi) { 2811 lpfc_printf_vlog(vport, KERN_ERR, 2812 LOG_MBOX, 2813 "3303 Failed to obtain vport vpi\n"); 2814 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2815 return; 2816 } 2817 vport->vpi = vpi; 2818 } 2819 2820 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2821 if (!mboxq) { 2822 lpfc_printf_vlog(vport, KERN_ERR, 2823 LOG_MBOX, "2607 Failed to allocate " 2824 "init_vpi mailbox\n"); 2825 return; 2826 } 2827 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2828 mboxq->vport = vport; 2829 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2830 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2831 if (rc == MBX_NOT_FINISHED) { 2832 lpfc_printf_vlog(vport, KERN_ERR, 2833 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2834 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2835 } 2836 } 2837 2838 /** 2839 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2840 * @phba: pointer to lpfc hba data structure. 2841 * 2842 * This function loops through the list of vports on the @phba and issues an 2843 * FDISC if possible. 2844 */ 2845 void 2846 lpfc_start_fdiscs(struct lpfc_hba *phba) 2847 { 2848 struct lpfc_vport **vports; 2849 int i; 2850 2851 vports = lpfc_create_vport_work_array(phba); 2852 if (vports != NULL) { 2853 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2854 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2855 continue; 2856 /* There are no vpi for this vport */ 2857 if (vports[i]->vpi > phba->max_vpi) { 2858 lpfc_vport_set_state(vports[i], 2859 FC_VPORT_FAILED); 2860 continue; 2861 } 2862 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2863 lpfc_vport_set_state(vports[i], 2864 FC_VPORT_LINKDOWN); 2865 continue; 2866 } 2867 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2868 lpfc_issue_init_vpi(vports[i]); 2869 continue; 2870 } 2871 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2872 lpfc_initial_fdisc(vports[i]); 2873 else { 2874 lpfc_vport_set_state(vports[i], 2875 FC_VPORT_NO_FABRIC_SUPP); 2876 lpfc_printf_vlog(vports[i], KERN_ERR, 2877 LOG_ELS, 2878 "0259 No NPIV " 2879 "Fabric support\n"); 2880 } 2881 } 2882 } 2883 lpfc_destroy_vport_work_array(phba, vports); 2884 } 2885 2886 void 2887 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2888 { 2889 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2890 struct lpfc_vport *vport = mboxq->vport; 2891 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2892 2893 /* 2894 * VFI not supported for interface type 0, so ignore any mailbox 2895 * error (except VFI in use) and continue with the discovery. 2896 */ 2897 if (mboxq->u.mb.mbxStatus && 2898 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2899 LPFC_SLI_INTF_IF_TYPE_0) && 2900 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2901 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2902 "2018 REG_VFI mbxStatus error x%x " 2903 "HBA state x%x\n", 2904 mboxq->u.mb.mbxStatus, vport->port_state); 2905 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2906 /* FLOGI failed, use loop map to make discovery list */ 2907 lpfc_disc_list_loopmap(vport); 2908 /* Start discovery */ 2909 lpfc_disc_start(vport); 2910 goto out_free_mem; 2911 } 2912 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2913 goto out_free_mem; 2914 } 2915 2916 /* If the VFI is already registered, there is nothing else to do 2917 * Unless this was a VFI update and we are in PT2PT mode, then 2918 * we should drop through to set the port state to ready. 2919 */ 2920 if (vport->fc_flag & FC_VFI_REGISTERED) 2921 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2922 vport->fc_flag & FC_PT2PT)) 2923 goto out_free_mem; 2924 2925 /* The VPI is implicitly registered when the VFI is registered */ 2926 spin_lock_irq(shost->host_lock); 2927 vport->vpi_state |= LPFC_VPI_REGISTERED; 2928 vport->fc_flag |= FC_VFI_REGISTERED; 2929 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2930 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2931 spin_unlock_irq(shost->host_lock); 2932 2933 /* In case SLI4 FC loopback test, we are ready */ 2934 if ((phba->sli_rev == LPFC_SLI_REV4) && 2935 (phba->link_flag & LS_LOOPBACK_MODE)) { 2936 phba->link_state = LPFC_HBA_READY; 2937 goto out_free_mem; 2938 } 2939 2940 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2941 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2942 "alpacnt:%d LinkState:%x topology:%x\n", 2943 vport->port_state, vport->fc_flag, vport->fc_myDID, 2944 vport->phba->alpa_map[0], 2945 phba->link_state, phba->fc_topology); 2946 2947 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2948 /* 2949 * For private loop or for NPort pt2pt, 2950 * just start discovery and we are done. 2951 */ 2952 if ((vport->fc_flag & FC_PT2PT) || 2953 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2954 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2955 2956 /* Use loop map to make discovery list */ 2957 lpfc_disc_list_loopmap(vport); 2958 /* Start discovery */ 2959 if (vport->fc_flag & FC_PT2PT) 2960 vport->port_state = LPFC_VPORT_READY; 2961 else 2962 lpfc_disc_start(vport); 2963 } else { 2964 lpfc_start_fdiscs(phba); 2965 lpfc_do_scr_ns_plogi(phba, vport); 2966 } 2967 } 2968 2969 out_free_mem: 2970 mempool_free(mboxq, phba->mbox_mem_pool); 2971 if (dmabuf) { 2972 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2973 kfree(dmabuf); 2974 } 2975 return; 2976 } 2977 2978 static void 2979 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2980 { 2981 MAILBOX_t *mb = &pmb->u.mb; 2982 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 2983 struct lpfc_vport *vport = pmb->vport; 2984 struct serv_parm *sp = &vport->fc_sparam; 2985 uint32_t ed_tov; 2986 2987 /* Check for error */ 2988 if (mb->mbxStatus) { 2989 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 2990 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2991 "0319 READ_SPARAM mbxStatus error x%x " 2992 "hba state x%x>\n", 2993 mb->mbxStatus, vport->port_state); 2994 lpfc_linkdown(phba); 2995 goto out; 2996 } 2997 2998 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 2999 sizeof (struct serv_parm)); 3000 3001 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3002 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3003 ed_tov = (ed_tov + 999999) / 1000000; 3004 3005 phba->fc_edtov = ed_tov; 3006 phba->fc_ratov = (2 * ed_tov) / 1000; 3007 if (phba->fc_ratov < FF_DEF_RATOV) { 3008 /* RA_TOV should be atleast 10sec for initial flogi */ 3009 phba->fc_ratov = FF_DEF_RATOV; 3010 } 3011 3012 lpfc_update_vport_wwn(vport); 3013 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3014 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3015 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3016 } 3017 3018 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3019 kfree(mp); 3020 mempool_free(pmb, phba->mbox_mem_pool); 3021 return; 3022 3023 out: 3024 pmb->context1 = NULL; 3025 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3026 kfree(mp); 3027 lpfc_issue_clear_la(phba, vport); 3028 mempool_free(pmb, phba->mbox_mem_pool); 3029 return; 3030 } 3031 3032 static void 3033 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3034 { 3035 struct lpfc_vport *vport = phba->pport; 3036 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3037 struct Scsi_Host *shost; 3038 int i; 3039 struct lpfc_dmabuf *mp; 3040 int rc; 3041 struct fcf_record *fcf_record; 3042 uint32_t fc_flags = 0; 3043 3044 spin_lock_irq(&phba->hbalock); 3045 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3046 3047 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3048 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3049 case LPFC_LINK_SPEED_1GHZ: 3050 case LPFC_LINK_SPEED_2GHZ: 3051 case LPFC_LINK_SPEED_4GHZ: 3052 case LPFC_LINK_SPEED_8GHZ: 3053 case LPFC_LINK_SPEED_10GHZ: 3054 case LPFC_LINK_SPEED_16GHZ: 3055 case LPFC_LINK_SPEED_32GHZ: 3056 break; 3057 default: 3058 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3059 break; 3060 } 3061 } 3062 3063 if (phba->fc_topology && 3064 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3065 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3066 "3314 Toplogy changed was 0x%x is 0x%x\n", 3067 phba->fc_topology, 3068 bf_get(lpfc_mbx_read_top_topology, la)); 3069 phba->fc_topology_changed = 1; 3070 } 3071 3072 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3073 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3074 3075 shost = lpfc_shost_from_vport(vport); 3076 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3077 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3078 3079 /* if npiv is enabled and this adapter supports npiv log 3080 * a message that npiv is not supported in this topology 3081 */ 3082 if (phba->cfg_enable_npiv && phba->max_vpi) 3083 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3084 "1309 Link Up Event npiv not supported in loop " 3085 "topology\n"); 3086 /* Get Loop Map information */ 3087 if (bf_get(lpfc_mbx_read_top_il, la)) 3088 fc_flags |= FC_LBIT; 3089 3090 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3091 i = la->lilpBde64.tus.f.bdeSize; 3092 3093 if (i == 0) { 3094 phba->alpa_map[0] = 0; 3095 } else { 3096 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3097 int numalpa, j, k; 3098 union { 3099 uint8_t pamap[16]; 3100 struct { 3101 uint32_t wd1; 3102 uint32_t wd2; 3103 uint32_t wd3; 3104 uint32_t wd4; 3105 } pa; 3106 } un; 3107 numalpa = phba->alpa_map[0]; 3108 j = 0; 3109 while (j < numalpa) { 3110 memset(un.pamap, 0, 16); 3111 for (k = 1; j < numalpa; k++) { 3112 un.pamap[k - 1] = 3113 phba->alpa_map[j + 1]; 3114 j++; 3115 if (k == 16) 3116 break; 3117 } 3118 /* Link Up Event ALPA map */ 3119 lpfc_printf_log(phba, 3120 KERN_WARNING, 3121 LOG_LINK_EVENT, 3122 "1304 Link Up Event " 3123 "ALPA map Data: x%x " 3124 "x%x x%x x%x\n", 3125 un.pa.wd1, un.pa.wd2, 3126 un.pa.wd3, un.pa.wd4); 3127 } 3128 } 3129 } 3130 } else { 3131 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3132 if (phba->max_vpi && phba->cfg_enable_npiv && 3133 (phba->sli_rev >= LPFC_SLI_REV3)) 3134 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3135 } 3136 vport->fc_myDID = phba->fc_pref_DID; 3137 fc_flags |= FC_LBIT; 3138 } 3139 spin_unlock_irq(&phba->hbalock); 3140 3141 if (fc_flags) { 3142 spin_lock_irq(shost->host_lock); 3143 vport->fc_flag |= fc_flags; 3144 spin_unlock_irq(shost->host_lock); 3145 } 3146 3147 lpfc_linkup(phba); 3148 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3149 if (!sparam_mbox) 3150 goto out; 3151 3152 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3153 if (rc) { 3154 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3155 goto out; 3156 } 3157 sparam_mbox->vport = vport; 3158 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3159 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3160 if (rc == MBX_NOT_FINISHED) { 3161 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3162 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3163 kfree(mp); 3164 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3165 goto out; 3166 } 3167 3168 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3169 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3170 if (!cfglink_mbox) 3171 goto out; 3172 vport->port_state = LPFC_LOCAL_CFG_LINK; 3173 lpfc_config_link(phba, cfglink_mbox); 3174 cfglink_mbox->vport = vport; 3175 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3176 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3177 if (rc == MBX_NOT_FINISHED) { 3178 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3179 goto out; 3180 } 3181 } else { 3182 vport->port_state = LPFC_VPORT_UNKNOWN; 3183 /* 3184 * Add the driver's default FCF record at FCF index 0 now. This 3185 * is phase 1 implementation that support FCF index 0 and driver 3186 * defaults. 3187 */ 3188 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3189 fcf_record = kzalloc(sizeof(struct fcf_record), 3190 GFP_KERNEL); 3191 if (unlikely(!fcf_record)) { 3192 lpfc_printf_log(phba, KERN_ERR, 3193 LOG_MBOX | LOG_SLI, 3194 "2554 Could not allocate memory for " 3195 "fcf record\n"); 3196 rc = -ENODEV; 3197 goto out; 3198 } 3199 3200 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3201 LPFC_FCOE_FCF_DEF_INDEX); 3202 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3203 if (unlikely(rc)) { 3204 lpfc_printf_log(phba, KERN_ERR, 3205 LOG_MBOX | LOG_SLI, 3206 "2013 Could not manually add FCF " 3207 "record 0, status %d\n", rc); 3208 rc = -ENODEV; 3209 kfree(fcf_record); 3210 goto out; 3211 } 3212 kfree(fcf_record); 3213 } 3214 /* 3215 * The driver is expected to do FIP/FCF. Call the port 3216 * and get the FCF Table. 3217 */ 3218 spin_lock_irq(&phba->hbalock); 3219 if (phba->hba_flag & FCF_TS_INPROG) { 3220 spin_unlock_irq(&phba->hbalock); 3221 return; 3222 } 3223 /* This is the initial FCF discovery scan */ 3224 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3225 spin_unlock_irq(&phba->hbalock); 3226 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3227 "2778 Start FCF table scan at linkup\n"); 3228 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3229 LPFC_FCOE_FCF_GET_FIRST); 3230 if (rc) { 3231 spin_lock_irq(&phba->hbalock); 3232 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3233 spin_unlock_irq(&phba->hbalock); 3234 goto out; 3235 } 3236 /* Reset FCF roundrobin bmask for new discovery */ 3237 lpfc_sli4_clear_fcf_rr_bmask(phba); 3238 } 3239 3240 return; 3241 out: 3242 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3243 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3244 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3245 vport->port_state, sparam_mbox, cfglink_mbox); 3246 lpfc_issue_clear_la(phba, vport); 3247 return; 3248 } 3249 3250 static void 3251 lpfc_enable_la(struct lpfc_hba *phba) 3252 { 3253 uint32_t control; 3254 struct lpfc_sli *psli = &phba->sli; 3255 spin_lock_irq(&phba->hbalock); 3256 psli->sli_flag |= LPFC_PROCESS_LA; 3257 if (phba->sli_rev <= LPFC_SLI_REV3) { 3258 control = readl(phba->HCregaddr); 3259 control |= HC_LAINT_ENA; 3260 writel(control, phba->HCregaddr); 3261 readl(phba->HCregaddr); /* flush */ 3262 } 3263 spin_unlock_irq(&phba->hbalock); 3264 } 3265 3266 static void 3267 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3268 { 3269 lpfc_linkdown(phba); 3270 lpfc_enable_la(phba); 3271 lpfc_unregister_unused_fcf(phba); 3272 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3273 } 3274 3275 3276 /* 3277 * This routine handles processing a READ_TOPOLOGY mailbox 3278 * command upon completion. It is setup in the LPFC_MBOXQ 3279 * as the completion routine when the command is 3280 * handed off to the SLI layer. 3281 */ 3282 void 3283 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3284 { 3285 struct lpfc_vport *vport = pmb->vport; 3286 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3287 struct lpfc_mbx_read_top *la; 3288 MAILBOX_t *mb = &pmb->u.mb; 3289 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3290 3291 /* Unblock ELS traffic */ 3292 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 3293 /* Check for error */ 3294 if (mb->mbxStatus) { 3295 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3296 "1307 READ_LA mbox error x%x state x%x\n", 3297 mb->mbxStatus, vport->port_state); 3298 lpfc_mbx_issue_link_down(phba); 3299 phba->link_state = LPFC_HBA_ERROR; 3300 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3301 } 3302 3303 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3304 3305 memcpy(&phba->alpa_map[0], mp->virt, 128); 3306 3307 spin_lock_irq(shost->host_lock); 3308 if (bf_get(lpfc_mbx_read_top_pb, la)) 3309 vport->fc_flag |= FC_BYPASSED_MODE; 3310 else 3311 vport->fc_flag &= ~FC_BYPASSED_MODE; 3312 spin_unlock_irq(shost->host_lock); 3313 3314 if (phba->fc_eventTag <= la->eventTag) { 3315 phba->fc_stat.LinkMultiEvent++; 3316 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3317 if (phba->fc_eventTag != 0) 3318 lpfc_linkdown(phba); 3319 } 3320 3321 phba->fc_eventTag = la->eventTag; 3322 if (phba->sli_rev < LPFC_SLI_REV4) { 3323 spin_lock_irq(&phba->hbalock); 3324 if (bf_get(lpfc_mbx_read_top_mm, la)) 3325 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3326 else 3327 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3328 spin_unlock_irq(&phba->hbalock); 3329 } 3330 3331 phba->link_events++; 3332 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3333 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3334 phba->fc_stat.LinkUp++; 3335 if (phba->link_flag & LS_LOOPBACK_MODE) { 3336 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3337 "1306 Link Up Event in loop back mode " 3338 "x%x received Data: x%x x%x x%x x%x\n", 3339 la->eventTag, phba->fc_eventTag, 3340 bf_get(lpfc_mbx_read_top_alpa_granted, 3341 la), 3342 bf_get(lpfc_mbx_read_top_link_spd, la), 3343 phba->alpa_map[0]); 3344 } else { 3345 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3346 "1303 Link Up Event x%x received " 3347 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3348 la->eventTag, phba->fc_eventTag, 3349 bf_get(lpfc_mbx_read_top_alpa_granted, 3350 la), 3351 bf_get(lpfc_mbx_read_top_link_spd, la), 3352 phba->alpa_map[0], 3353 bf_get(lpfc_mbx_read_top_mm, la), 3354 bf_get(lpfc_mbx_read_top_fa, la), 3355 phba->wait_4_mlo_maint_flg); 3356 } 3357 lpfc_mbx_process_link_up(phba, la); 3358 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3359 LPFC_ATT_LINK_DOWN) { 3360 phba->fc_stat.LinkDown++; 3361 if (phba->link_flag & LS_LOOPBACK_MODE) 3362 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3363 "1308 Link Down Event in loop back mode " 3364 "x%x received " 3365 "Data: x%x x%x x%x\n", 3366 la->eventTag, phba->fc_eventTag, 3367 phba->pport->port_state, vport->fc_flag); 3368 else 3369 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3370 "1305 Link Down Event x%x received " 3371 "Data: x%x x%x x%x x%x x%x\n", 3372 la->eventTag, phba->fc_eventTag, 3373 phba->pport->port_state, vport->fc_flag, 3374 bf_get(lpfc_mbx_read_top_mm, la), 3375 bf_get(lpfc_mbx_read_top_fa, la)); 3376 lpfc_mbx_issue_link_down(phba); 3377 } 3378 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) && 3379 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) { 3380 if (phba->link_state != LPFC_LINK_DOWN) { 3381 phba->fc_stat.LinkDown++; 3382 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3383 "1312 Link Down Event x%x received " 3384 "Data: x%x x%x x%x\n", 3385 la->eventTag, phba->fc_eventTag, 3386 phba->pport->port_state, vport->fc_flag); 3387 lpfc_mbx_issue_link_down(phba); 3388 } else 3389 lpfc_enable_la(phba); 3390 3391 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3392 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3393 "Data: x%x x%x x%x\n", 3394 la->eventTag, phba->fc_eventTag, 3395 phba->pport->port_state, vport->fc_flag); 3396 /* 3397 * The cmnd that triggered this will be waiting for this 3398 * signal. 3399 */ 3400 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3401 if (phba->wait_4_mlo_maint_flg) { 3402 phba->wait_4_mlo_maint_flg = 0; 3403 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3404 } 3405 } 3406 3407 if ((phba->sli_rev < LPFC_SLI_REV4) && 3408 bf_get(lpfc_mbx_read_top_fa, la)) { 3409 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3410 lpfc_issue_clear_la(phba, vport); 3411 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3412 "1311 fa %d\n", 3413 bf_get(lpfc_mbx_read_top_fa, la)); 3414 } 3415 3416 lpfc_mbx_cmpl_read_topology_free_mbuf: 3417 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3418 kfree(mp); 3419 mempool_free(pmb, phba->mbox_mem_pool); 3420 return; 3421 } 3422 3423 /* 3424 * This routine handles processing a REG_LOGIN mailbox 3425 * command upon completion. It is setup in the LPFC_MBOXQ 3426 * as the completion routine when the command is 3427 * handed off to the SLI layer. 3428 */ 3429 void 3430 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3431 { 3432 struct lpfc_vport *vport = pmb->vport; 3433 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3434 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3435 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3436 3437 pmb->context1 = NULL; 3438 pmb->context2 = NULL; 3439 3440 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3441 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3442 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3443 atomic_read(&ndlp->kref.refcount), 3444 ndlp->nlp_usg_map, ndlp); 3445 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3446 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3447 3448 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3449 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3450 /* We rcvd a rscn after issuing this 3451 * mbox reg login, we may have cycled 3452 * back through the state and be 3453 * back at reg login state so this 3454 * mbox needs to be ignored becase 3455 * there is another reg login in 3456 * process. 3457 */ 3458 spin_lock_irq(shost->host_lock); 3459 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3460 spin_unlock_irq(shost->host_lock); 3461 } 3462 3463 /* Call state machine */ 3464 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3465 3466 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3467 kfree(mp); 3468 mempool_free(pmb, phba->mbox_mem_pool); 3469 /* decrement the node reference count held for this callback 3470 * function. 3471 */ 3472 lpfc_nlp_put(ndlp); 3473 3474 return; 3475 } 3476 3477 static void 3478 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3479 { 3480 MAILBOX_t *mb = &pmb->u.mb; 3481 struct lpfc_vport *vport = pmb->vport; 3482 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3483 3484 switch (mb->mbxStatus) { 3485 case 0x0011: 3486 case 0x0020: 3487 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3488 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3489 mb->mbxStatus); 3490 break; 3491 /* If VPI is busy, reset the HBA */ 3492 case 0x9700: 3493 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3494 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3495 vport->vpi, mb->mbxStatus); 3496 if (!(phba->pport->load_flag & FC_UNLOADING)) 3497 lpfc_workq_post_event(phba, NULL, NULL, 3498 LPFC_EVT_RESET_HBA); 3499 } 3500 spin_lock_irq(shost->host_lock); 3501 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3502 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3503 spin_unlock_irq(shost->host_lock); 3504 vport->unreg_vpi_cmpl = VPORT_OK; 3505 mempool_free(pmb, phba->mbox_mem_pool); 3506 lpfc_cleanup_vports_rrqs(vport, NULL); 3507 /* 3508 * This shost reference might have been taken at the beginning of 3509 * lpfc_vport_delete() 3510 */ 3511 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3512 scsi_host_put(shost); 3513 } 3514 3515 int 3516 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3517 { 3518 struct lpfc_hba *phba = vport->phba; 3519 LPFC_MBOXQ_t *mbox; 3520 int rc; 3521 3522 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3523 if (!mbox) 3524 return 1; 3525 3526 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3527 mbox->vport = vport; 3528 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3529 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3530 if (rc == MBX_NOT_FINISHED) { 3531 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3532 "1800 Could not issue unreg_vpi\n"); 3533 mempool_free(mbox, phba->mbox_mem_pool); 3534 vport->unreg_vpi_cmpl = VPORT_ERROR; 3535 return rc; 3536 } 3537 return 0; 3538 } 3539 3540 static void 3541 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3542 { 3543 struct lpfc_vport *vport = pmb->vport; 3544 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3545 MAILBOX_t *mb = &pmb->u.mb; 3546 3547 switch (mb->mbxStatus) { 3548 case 0x0011: 3549 case 0x9601: 3550 case 0x9602: 3551 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3552 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3553 mb->mbxStatus); 3554 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3555 spin_lock_irq(shost->host_lock); 3556 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3557 spin_unlock_irq(shost->host_lock); 3558 vport->fc_myDID = 0; 3559 goto out; 3560 } 3561 3562 spin_lock_irq(shost->host_lock); 3563 vport->vpi_state |= LPFC_VPI_REGISTERED; 3564 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3565 spin_unlock_irq(shost->host_lock); 3566 vport->num_disc_nodes = 0; 3567 /* go thru NPR list and issue ELS PLOGIs */ 3568 if (vport->fc_npr_cnt) 3569 lpfc_els_disc_plogi(vport); 3570 3571 if (!vport->num_disc_nodes) { 3572 spin_lock_irq(shost->host_lock); 3573 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3574 spin_unlock_irq(shost->host_lock); 3575 lpfc_can_disctmo(vport); 3576 } 3577 vport->port_state = LPFC_VPORT_READY; 3578 3579 out: 3580 mempool_free(pmb, phba->mbox_mem_pool); 3581 return; 3582 } 3583 3584 /** 3585 * lpfc_create_static_vport - Read HBA config region to create static vports. 3586 * @phba: pointer to lpfc hba data structure. 3587 * 3588 * This routine issue a DUMP mailbox command for config region 22 to get 3589 * the list of static vports to be created. The function create vports 3590 * based on the information returned from the HBA. 3591 **/ 3592 void 3593 lpfc_create_static_vport(struct lpfc_hba *phba) 3594 { 3595 LPFC_MBOXQ_t *pmb = NULL; 3596 MAILBOX_t *mb; 3597 struct static_vport_info *vport_info; 3598 int mbx_wait_rc = 0, i; 3599 struct fc_vport_identifiers vport_id; 3600 struct fc_vport *new_fc_vport; 3601 struct Scsi_Host *shost; 3602 struct lpfc_vport *vport; 3603 uint16_t offset = 0; 3604 uint8_t *vport_buff; 3605 struct lpfc_dmabuf *mp; 3606 uint32_t byte_count = 0; 3607 3608 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3609 if (!pmb) { 3610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3611 "0542 lpfc_create_static_vport failed to" 3612 " allocate mailbox memory\n"); 3613 return; 3614 } 3615 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3616 mb = &pmb->u.mb; 3617 3618 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3619 if (!vport_info) { 3620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3621 "0543 lpfc_create_static_vport failed to" 3622 " allocate vport_info\n"); 3623 mempool_free(pmb, phba->mbox_mem_pool); 3624 return; 3625 } 3626 3627 vport_buff = (uint8_t *) vport_info; 3628 do { 3629 /* free dma buffer from previous round */ 3630 if (pmb->context1) { 3631 mp = (struct lpfc_dmabuf *)pmb->context1; 3632 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3633 kfree(mp); 3634 } 3635 if (lpfc_dump_static_vport(phba, pmb, offset)) 3636 goto out; 3637 3638 pmb->vport = phba->pport; 3639 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3640 LPFC_MBOX_TMO); 3641 3642 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3643 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3644 "0544 lpfc_create_static_vport failed to" 3645 " issue dump mailbox command ret 0x%x " 3646 "status 0x%x\n", 3647 mbx_wait_rc, mb->mbxStatus); 3648 goto out; 3649 } 3650 3651 if (phba->sli_rev == LPFC_SLI_REV4) { 3652 byte_count = pmb->u.mqe.un.mb_words[5]; 3653 mp = (struct lpfc_dmabuf *)pmb->context1; 3654 if (byte_count > sizeof(struct static_vport_info) - 3655 offset) 3656 byte_count = sizeof(struct static_vport_info) 3657 - offset; 3658 memcpy(vport_buff + offset, mp->virt, byte_count); 3659 offset += byte_count; 3660 } else { 3661 if (mb->un.varDmp.word_cnt > 3662 sizeof(struct static_vport_info) - offset) 3663 mb->un.varDmp.word_cnt = 3664 sizeof(struct static_vport_info) 3665 - offset; 3666 byte_count = mb->un.varDmp.word_cnt; 3667 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3668 vport_buff + offset, 3669 byte_count); 3670 3671 offset += byte_count; 3672 } 3673 3674 } while (byte_count && 3675 offset < sizeof(struct static_vport_info)); 3676 3677 3678 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3679 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3680 != VPORT_INFO_REV)) { 3681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3682 "0545 lpfc_create_static_vport bad" 3683 " information header 0x%x 0x%x\n", 3684 le32_to_cpu(vport_info->signature), 3685 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3686 3687 goto out; 3688 } 3689 3690 shost = lpfc_shost_from_vport(phba->pport); 3691 3692 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3693 memset(&vport_id, 0, sizeof(vport_id)); 3694 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3695 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3696 if (!vport_id.port_name || !vport_id.node_name) 3697 continue; 3698 3699 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3700 vport_id.vport_type = FC_PORTTYPE_NPIV; 3701 vport_id.disable = false; 3702 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3703 3704 if (!new_fc_vport) { 3705 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3706 "0546 lpfc_create_static_vport failed to" 3707 " create vport\n"); 3708 continue; 3709 } 3710 3711 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3712 vport->vport_flag |= STATIC_VPORT; 3713 } 3714 3715 out: 3716 kfree(vport_info); 3717 if (mbx_wait_rc != MBX_TIMEOUT) { 3718 if (pmb->context1) { 3719 mp = (struct lpfc_dmabuf *)pmb->context1; 3720 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3721 kfree(mp); 3722 } 3723 mempool_free(pmb, phba->mbox_mem_pool); 3724 } 3725 3726 return; 3727 } 3728 3729 /* 3730 * This routine handles processing a Fabric REG_LOGIN mailbox 3731 * command upon completion. It is setup in the LPFC_MBOXQ 3732 * as the completion routine when the command is 3733 * handed off to the SLI layer. 3734 */ 3735 void 3736 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3737 { 3738 struct lpfc_vport *vport = pmb->vport; 3739 MAILBOX_t *mb = &pmb->u.mb; 3740 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3741 struct lpfc_nodelist *ndlp; 3742 struct Scsi_Host *shost; 3743 3744 ndlp = (struct lpfc_nodelist *) pmb->context2; 3745 pmb->context1 = NULL; 3746 pmb->context2 = NULL; 3747 3748 if (mb->mbxStatus) { 3749 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3750 "0258 Register Fabric login error: 0x%x\n", 3751 mb->mbxStatus); 3752 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3753 kfree(mp); 3754 mempool_free(pmb, phba->mbox_mem_pool); 3755 3756 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3757 /* FLOGI failed, use loop map to make discovery list */ 3758 lpfc_disc_list_loopmap(vport); 3759 3760 /* Start discovery */ 3761 lpfc_disc_start(vport); 3762 /* Decrement the reference count to ndlp after the 3763 * reference to the ndlp are done. 3764 */ 3765 lpfc_nlp_put(ndlp); 3766 return; 3767 } 3768 3769 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3770 /* Decrement the reference count to ndlp after the reference 3771 * to the ndlp are done. 3772 */ 3773 lpfc_nlp_put(ndlp); 3774 return; 3775 } 3776 3777 if (phba->sli_rev < LPFC_SLI_REV4) 3778 ndlp->nlp_rpi = mb->un.varWords[0]; 3779 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3780 ndlp->nlp_type |= NLP_FABRIC; 3781 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3782 3783 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3784 /* when physical port receive logo donot start 3785 * vport discovery */ 3786 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3787 lpfc_start_fdiscs(phba); 3788 else { 3789 shost = lpfc_shost_from_vport(vport); 3790 spin_lock_irq(shost->host_lock); 3791 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3792 spin_unlock_irq(shost->host_lock); 3793 } 3794 lpfc_do_scr_ns_plogi(phba, vport); 3795 } 3796 3797 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3798 kfree(mp); 3799 mempool_free(pmb, phba->mbox_mem_pool); 3800 3801 /* Drop the reference count from the mbox at the end after 3802 * all the current reference to the ndlp have been done. 3803 */ 3804 lpfc_nlp_put(ndlp); 3805 return; 3806 } 3807 3808 /* 3809 * This routine handles processing a NameServer REG_LOGIN mailbox 3810 * command upon completion. It is setup in the LPFC_MBOXQ 3811 * as the completion routine when the command is 3812 * handed off to the SLI layer. 3813 */ 3814 void 3815 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3816 { 3817 MAILBOX_t *mb = &pmb->u.mb; 3818 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3819 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3820 struct lpfc_vport *vport = pmb->vport; 3821 3822 pmb->context1 = NULL; 3823 pmb->context2 = NULL; 3824 3825 if (mb->mbxStatus) { 3826 out: 3827 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3828 "0260 Register NameServer error: 0x%x\n", 3829 mb->mbxStatus); 3830 /* decrement the node reference count held for this 3831 * callback function. 3832 */ 3833 lpfc_nlp_put(ndlp); 3834 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3835 kfree(mp); 3836 mempool_free(pmb, phba->mbox_mem_pool); 3837 3838 /* If no other thread is using the ndlp, free it */ 3839 lpfc_nlp_not_used(ndlp); 3840 3841 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3842 /* 3843 * RegLogin failed, use loop map to make discovery 3844 * list 3845 */ 3846 lpfc_disc_list_loopmap(vport); 3847 3848 /* Start discovery */ 3849 lpfc_disc_start(vport); 3850 return; 3851 } 3852 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3853 return; 3854 } 3855 3856 if (phba->sli_rev < LPFC_SLI_REV4) 3857 ndlp->nlp_rpi = mb->un.varWords[0]; 3858 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3859 ndlp->nlp_type |= NLP_FABRIC; 3860 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3861 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3862 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3863 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3864 atomic_read(&ndlp->kref.refcount), 3865 ndlp->nlp_usg_map, ndlp); 3866 3867 if (vport->port_state < LPFC_VPORT_READY) { 3868 /* Link up discovery requires Fabric registration. */ 3869 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3870 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3871 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3872 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3873 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); 3874 3875 /* Issue SCR just before NameServer GID_FT Query */ 3876 lpfc_issue_els_scr(vport, SCR_DID, 0); 3877 } 3878 3879 vport->fc_ns_retry = 0; 3880 /* Good status, issue CT Request to NameServer */ 3881 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 3882 /* Cannot issue NameServer Query, so finish up discovery */ 3883 goto out; 3884 } 3885 3886 /* decrement the node reference count held for this 3887 * callback function. 3888 */ 3889 lpfc_nlp_put(ndlp); 3890 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3891 kfree(mp); 3892 mempool_free(pmb, phba->mbox_mem_pool); 3893 3894 return; 3895 } 3896 3897 static void 3898 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3899 { 3900 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3901 struct fc_rport *rport; 3902 struct lpfc_rport_data *rdata; 3903 struct fc_rport_identifiers rport_ids; 3904 struct lpfc_hba *phba = vport->phba; 3905 3906 /* Remote port has reappeared. Re-register w/ FC transport */ 3907 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 3908 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 3909 rport_ids.port_id = ndlp->nlp_DID; 3910 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 3911 3912 /* 3913 * We leave our node pointer in rport->dd_data when we unregister a 3914 * FCP target port. But fc_remote_port_add zeros the space to which 3915 * rport->dd_data points. So, if we're reusing a previously 3916 * registered port, drop the reference that we took the last time we 3917 * registered the port. 3918 */ 3919 rport = ndlp->rport; 3920 if (rport) { 3921 rdata = rport->dd_data; 3922 /* break the link before dropping the ref */ 3923 ndlp->rport = NULL; 3924 if (rdata && rdata->pnode == ndlp) 3925 lpfc_nlp_put(ndlp); 3926 rdata->pnode = NULL; 3927 /* drop reference for earlier registeration */ 3928 put_device(&rport->dev); 3929 } 3930 3931 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 3932 "rport add: did:x%x flg:x%x type x%x", 3933 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3934 3935 /* Don't add the remote port if unloading. */ 3936 if (vport->load_flag & FC_UNLOADING) 3937 return; 3938 3939 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 3940 if (!rport || !get_device(&rport->dev)) { 3941 dev_printk(KERN_WARNING, &phba->pcidev->dev, 3942 "Warning: fc_remote_port_add failed\n"); 3943 return; 3944 } 3945 3946 /* initialize static port data */ 3947 rport->maxframe_size = ndlp->nlp_maxframe; 3948 rport->supported_classes = ndlp->nlp_class_sup; 3949 rdata = rport->dd_data; 3950 rdata->pnode = lpfc_nlp_get(ndlp); 3951 3952 if (ndlp->nlp_type & NLP_FCP_TARGET) 3953 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 3954 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 3955 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 3956 3957 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 3958 fc_remote_port_rolechg(rport, rport_ids.roles); 3959 3960 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3961 "3183 rport register x%06x, rport %p role x%x\n", 3962 ndlp->nlp_DID, rport, rport_ids.roles); 3963 3964 if ((rport->scsi_target_id != -1) && 3965 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 3966 ndlp->nlp_sid = rport->scsi_target_id; 3967 } 3968 return; 3969 } 3970 3971 static void 3972 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 3973 { 3974 struct fc_rport *rport = ndlp->rport; 3975 3976 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 3977 "rport delete: did:x%x flg:x%x type x%x", 3978 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3979 3980 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3981 "3184 rport unregister x%06x, rport %p\n", 3982 ndlp->nlp_DID, rport); 3983 3984 fc_remote_port_delete(rport); 3985 3986 return; 3987 } 3988 3989 static void 3990 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 3991 { 3992 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3993 3994 spin_lock_irq(shost->host_lock); 3995 switch (state) { 3996 case NLP_STE_UNUSED_NODE: 3997 vport->fc_unused_cnt += count; 3998 break; 3999 case NLP_STE_PLOGI_ISSUE: 4000 vport->fc_plogi_cnt += count; 4001 break; 4002 case NLP_STE_ADISC_ISSUE: 4003 vport->fc_adisc_cnt += count; 4004 break; 4005 case NLP_STE_REG_LOGIN_ISSUE: 4006 vport->fc_reglogin_cnt += count; 4007 break; 4008 case NLP_STE_PRLI_ISSUE: 4009 vport->fc_prli_cnt += count; 4010 break; 4011 case NLP_STE_UNMAPPED_NODE: 4012 vport->fc_unmap_cnt += count; 4013 break; 4014 case NLP_STE_MAPPED_NODE: 4015 vport->fc_map_cnt += count; 4016 break; 4017 case NLP_STE_NPR_NODE: 4018 if (vport->fc_npr_cnt == 0 && count == -1) 4019 vport->fc_npr_cnt = 0; 4020 else 4021 vport->fc_npr_cnt += count; 4022 break; 4023 } 4024 spin_unlock_irq(shost->host_lock); 4025 } 4026 4027 static void 4028 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4029 int old_state, int new_state) 4030 { 4031 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4032 4033 if (new_state == NLP_STE_UNMAPPED_NODE) { 4034 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4035 ndlp->nlp_type |= NLP_FC_NODE; 4036 } 4037 if (new_state == NLP_STE_MAPPED_NODE) 4038 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4039 if (new_state == NLP_STE_NPR_NODE) 4040 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4041 4042 /* Transport interface */ 4043 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 4044 old_state == NLP_STE_UNMAPPED_NODE)) { 4045 vport->phba->nport_event_cnt++; 4046 lpfc_unregister_remote_port(ndlp); 4047 } 4048 4049 if (new_state == NLP_STE_MAPPED_NODE || 4050 new_state == NLP_STE_UNMAPPED_NODE) { 4051 vport->phba->nport_event_cnt++; 4052 /* 4053 * Tell the fc transport about the port, if we haven't 4054 * already. If we have, and it's a scsi entity, be 4055 * sure to unblock any attached scsi devices 4056 */ 4057 lpfc_register_remote_port(vport, ndlp); 4058 } 4059 if ((new_state == NLP_STE_MAPPED_NODE) && 4060 (vport->stat_data_enabled)) { 4061 /* 4062 * A new target is discovered, if there is no buffer for 4063 * statistical data collection allocate buffer. 4064 */ 4065 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4066 sizeof(struct lpfc_scsicmd_bkt), 4067 GFP_KERNEL); 4068 4069 if (!ndlp->lat_data) 4070 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4071 "0286 lpfc_nlp_state_cleanup failed to " 4072 "allocate statistical data buffer DID " 4073 "0x%x\n", ndlp->nlp_DID); 4074 } 4075 /* 4076 * if we added to Mapped list, but the remote port 4077 * registration failed or assigned a target id outside 4078 * our presentable range - move the node to the 4079 * Unmapped List 4080 */ 4081 if (new_state == NLP_STE_MAPPED_NODE && 4082 (!ndlp->rport || 4083 ndlp->rport->scsi_target_id == -1 || 4084 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4085 spin_lock_irq(shost->host_lock); 4086 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4087 spin_unlock_irq(shost->host_lock); 4088 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4089 } 4090 } 4091 4092 static char * 4093 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4094 { 4095 static char *states[] = { 4096 [NLP_STE_UNUSED_NODE] = "UNUSED", 4097 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4098 [NLP_STE_ADISC_ISSUE] = "ADISC", 4099 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4100 [NLP_STE_PRLI_ISSUE] = "PRLI", 4101 [NLP_STE_LOGO_ISSUE] = "LOGO", 4102 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4103 [NLP_STE_MAPPED_NODE] = "MAPPED", 4104 [NLP_STE_NPR_NODE] = "NPR", 4105 }; 4106 4107 if (state < NLP_STE_MAX_STATE && states[state]) 4108 strlcpy(buffer, states[state], size); 4109 else 4110 snprintf(buffer, size, "unknown (%d)", state); 4111 return buffer; 4112 } 4113 4114 void 4115 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4116 int state) 4117 { 4118 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4119 int old_state = ndlp->nlp_state; 4120 char name1[16], name2[16]; 4121 4122 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4123 "0904 NPort state transition x%06x, %s -> %s\n", 4124 ndlp->nlp_DID, 4125 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4126 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4127 4128 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4129 "node statechg did:x%x old:%d ste:%d", 4130 ndlp->nlp_DID, old_state, state); 4131 4132 if (old_state == NLP_STE_NPR_NODE && 4133 state != NLP_STE_NPR_NODE) 4134 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4135 if (old_state == NLP_STE_UNMAPPED_NODE) { 4136 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4137 ndlp->nlp_type &= ~NLP_FC_NODE; 4138 } 4139 4140 if (list_empty(&ndlp->nlp_listp)) { 4141 spin_lock_irq(shost->host_lock); 4142 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4143 spin_unlock_irq(shost->host_lock); 4144 } else if (old_state) 4145 lpfc_nlp_counters(vport, old_state, -1); 4146 4147 ndlp->nlp_state = state; 4148 lpfc_nlp_counters(vport, state, 1); 4149 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4150 } 4151 4152 void 4153 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4154 { 4155 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4156 4157 if (list_empty(&ndlp->nlp_listp)) { 4158 spin_lock_irq(shost->host_lock); 4159 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4160 spin_unlock_irq(shost->host_lock); 4161 } 4162 } 4163 4164 void 4165 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4166 { 4167 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4168 4169 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4170 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4171 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4172 spin_lock_irq(shost->host_lock); 4173 list_del_init(&ndlp->nlp_listp); 4174 spin_unlock_irq(shost->host_lock); 4175 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4176 NLP_STE_UNUSED_NODE); 4177 } 4178 4179 static void 4180 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4181 { 4182 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4183 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4184 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4185 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4186 NLP_STE_UNUSED_NODE); 4187 } 4188 /** 4189 * lpfc_initialize_node - Initialize all fields of node object 4190 * @vport: Pointer to Virtual Port object. 4191 * @ndlp: Pointer to FC node object. 4192 * @did: FC_ID of the node. 4193 * 4194 * This function is always called when node object need to be initialized. 4195 * It initializes all the fields of the node object. Although the reference 4196 * to phba from @ndlp can be obtained indirectly through it's reference to 4197 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4198 * to the life-span of the @ndlp might go beyond the existence of @vport as 4199 * the final release of ndlp is determined by its reference count. And, the 4200 * operation on @ndlp needs the reference to phba. 4201 **/ 4202 static inline void 4203 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4204 uint32_t did) 4205 { 4206 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4207 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4208 init_timer(&ndlp->nlp_delayfunc); 4209 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 4210 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 4211 ndlp->nlp_DID = did; 4212 ndlp->vport = vport; 4213 ndlp->phba = vport->phba; 4214 ndlp->nlp_sid = NLP_NO_SID; 4215 kref_init(&ndlp->kref); 4216 NLP_INT_NODE_ACT(ndlp); 4217 atomic_set(&ndlp->cmd_pending, 0); 4218 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4219 } 4220 4221 struct lpfc_nodelist * 4222 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4223 int state) 4224 { 4225 struct lpfc_hba *phba = vport->phba; 4226 uint32_t did; 4227 unsigned long flags; 4228 unsigned long *active_rrqs_xri_bitmap = NULL; 4229 4230 if (!ndlp) 4231 return NULL; 4232 4233 spin_lock_irqsave(&phba->ndlp_lock, flags); 4234 /* The ndlp should not be in memory free mode */ 4235 if (NLP_CHK_FREE_REQ(ndlp)) { 4236 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4237 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4238 "0277 lpfc_enable_node: ndlp:x%p " 4239 "usgmap:x%x refcnt:%d\n", 4240 (void *)ndlp, ndlp->nlp_usg_map, 4241 atomic_read(&ndlp->kref.refcount)); 4242 return NULL; 4243 } 4244 /* The ndlp should not already be in active mode */ 4245 if (NLP_CHK_NODE_ACT(ndlp)) { 4246 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4247 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4248 "0278 lpfc_enable_node: ndlp:x%p " 4249 "usgmap:x%x refcnt:%d\n", 4250 (void *)ndlp, ndlp->nlp_usg_map, 4251 atomic_read(&ndlp->kref.refcount)); 4252 return NULL; 4253 } 4254 4255 /* Keep the original DID */ 4256 did = ndlp->nlp_DID; 4257 if (phba->sli_rev == LPFC_SLI_REV4) 4258 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4259 4260 /* re-initialize ndlp except of ndlp linked list pointer */ 4261 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4262 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4263 lpfc_initialize_node(vport, ndlp, did); 4264 4265 if (phba->sli_rev == LPFC_SLI_REV4) 4266 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4267 4268 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4269 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4270 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4271 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4272 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4273 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4274 ndlp->nlp_flag, 4275 atomic_read(&ndlp->kref.refcount), 4276 ndlp->nlp_usg_map, ndlp); 4277 } 4278 4279 4280 if (state != NLP_STE_UNUSED_NODE) 4281 lpfc_nlp_set_state(vport, ndlp, state); 4282 4283 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4284 "node enable: did:x%x", 4285 ndlp->nlp_DID, 0, 0); 4286 return ndlp; 4287 } 4288 4289 void 4290 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4291 { 4292 /* 4293 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4294 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4295 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4296 * until ALL other outstanding threads have completed. We check 4297 * that the ndlp not already in the UNUSED state before we proceed. 4298 */ 4299 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4300 return; 4301 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4302 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4303 lpfc_cleanup_vports_rrqs(vport, ndlp); 4304 lpfc_unreg_rpi(vport, ndlp); 4305 } 4306 4307 lpfc_nlp_put(ndlp); 4308 return; 4309 } 4310 4311 /* 4312 * Start / ReStart rescue timer for Discovery / RSCN handling 4313 */ 4314 void 4315 lpfc_set_disctmo(struct lpfc_vport *vport) 4316 { 4317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4318 struct lpfc_hba *phba = vport->phba; 4319 uint32_t tmo; 4320 4321 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4322 /* For FAN, timeout should be greater than edtov */ 4323 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4324 } else { 4325 /* Normal discovery timeout should be > than ELS/CT timeout 4326 * FC spec states we need 3 * ratov for CT requests 4327 */ 4328 tmo = ((phba->fc_ratov * 3) + 3); 4329 } 4330 4331 4332 if (!timer_pending(&vport->fc_disctmo)) { 4333 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4334 "set disc timer: tmo:x%x state:x%x flg:x%x", 4335 tmo, vport->port_state, vport->fc_flag); 4336 } 4337 4338 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4339 spin_lock_irq(shost->host_lock); 4340 vport->fc_flag |= FC_DISC_TMO; 4341 spin_unlock_irq(shost->host_lock); 4342 4343 /* Start Discovery Timer state <hba_state> */ 4344 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4345 "0247 Start Discovery Timer state x%x " 4346 "Data: x%x x%lx x%x x%x\n", 4347 vport->port_state, tmo, 4348 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4349 vport->fc_adisc_cnt); 4350 4351 return; 4352 } 4353 4354 /* 4355 * Cancel rescue timer for Discovery / RSCN handling 4356 */ 4357 int 4358 lpfc_can_disctmo(struct lpfc_vport *vport) 4359 { 4360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4361 unsigned long iflags; 4362 4363 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4364 "can disc timer: state:x%x rtry:x%x flg:x%x", 4365 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4366 4367 /* Turn off discovery timer if its running */ 4368 if (vport->fc_flag & FC_DISC_TMO) { 4369 spin_lock_irqsave(shost->host_lock, iflags); 4370 vport->fc_flag &= ~FC_DISC_TMO; 4371 spin_unlock_irqrestore(shost->host_lock, iflags); 4372 del_timer_sync(&vport->fc_disctmo); 4373 spin_lock_irqsave(&vport->work_port_lock, iflags); 4374 vport->work_port_events &= ~WORKER_DISC_TMO; 4375 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4376 } 4377 4378 /* Cancel Discovery Timer state <hba_state> */ 4379 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4380 "0248 Cancel Discovery Timer state x%x " 4381 "Data: x%x x%x x%x\n", 4382 vport->port_state, vport->fc_flag, 4383 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4384 return 0; 4385 } 4386 4387 /* 4388 * Check specified ring for outstanding IOCB on the SLI queue 4389 * Return true if iocb matches the specified nport 4390 */ 4391 int 4392 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4393 struct lpfc_sli_ring *pring, 4394 struct lpfc_iocbq *iocb, 4395 struct lpfc_nodelist *ndlp) 4396 { 4397 struct lpfc_sli *psli = &phba->sli; 4398 IOCB_t *icmd = &iocb->iocb; 4399 struct lpfc_vport *vport = ndlp->vport; 4400 4401 if (iocb->vport != vport) 4402 return 0; 4403 4404 if (pring->ringno == LPFC_ELS_RING) { 4405 switch (icmd->ulpCommand) { 4406 case CMD_GEN_REQUEST64_CR: 4407 if (iocb->context_un.ndlp == ndlp) 4408 return 1; 4409 case CMD_ELS_REQUEST64_CR: 4410 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4411 return 1; 4412 case CMD_XMIT_ELS_RSP64_CX: 4413 if (iocb->context1 == (uint8_t *) ndlp) 4414 return 1; 4415 } 4416 } else if (pring->ringno == psli->extra_ring) { 4417 4418 } else if (pring->ringno == psli->fcp_ring) { 4419 /* Skip match check if waiting to relogin to FCP target */ 4420 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4421 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4422 return 0; 4423 } 4424 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4425 return 1; 4426 } 4427 } else if (pring->ringno == psli->next_ring) { 4428 4429 } 4430 return 0; 4431 } 4432 4433 /* 4434 * Free resources / clean up outstanding I/Os 4435 * associated with nlp_rpi in the LPFC_NODELIST entry. 4436 */ 4437 static int 4438 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4439 { 4440 LIST_HEAD(completions); 4441 struct lpfc_sli *psli; 4442 struct lpfc_sli_ring *pring; 4443 struct lpfc_iocbq *iocb, *next_iocb; 4444 uint32_t i; 4445 4446 lpfc_fabric_abort_nport(ndlp); 4447 4448 /* 4449 * Everything that matches on txcmplq will be returned 4450 * by firmware with a no rpi error. 4451 */ 4452 psli = &phba->sli; 4453 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4454 /* Now process each ring */ 4455 for (i = 0; i < psli->num_rings; i++) { 4456 pring = &psli->ring[i]; 4457 4458 spin_lock_irq(&phba->hbalock); 4459 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 4460 list) { 4461 /* 4462 * Check to see if iocb matches the nport we are 4463 * looking for 4464 */ 4465 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 4466 ndlp))) { 4467 /* It matches, so deque and call compl 4468 with an error */ 4469 list_move_tail(&iocb->list, 4470 &completions); 4471 } 4472 } 4473 spin_unlock_irq(&phba->hbalock); 4474 } 4475 } 4476 4477 /* Cancel all the IOCBs from the completions list */ 4478 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4479 IOERR_SLI_ABORTED); 4480 4481 return 0; 4482 } 4483 4484 /** 4485 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4486 * @phba: Pointer to HBA context object. 4487 * @pmb: Pointer to mailbox object. 4488 * 4489 * This function will issue an ELS LOGO command after completing 4490 * the UNREG_RPI. 4491 **/ 4492 static void 4493 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4494 { 4495 struct lpfc_vport *vport = pmb->vport; 4496 struct lpfc_nodelist *ndlp; 4497 4498 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4499 if (!ndlp) 4500 return; 4501 lpfc_issue_els_logo(vport, ndlp, 0); 4502 mempool_free(pmb, phba->mbox_mem_pool); 4503 } 4504 4505 /* 4506 * Free rpi associated with LPFC_NODELIST entry. 4507 * This routine is called from lpfc_freenode(), when we are removing 4508 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4509 * LOGO that completes successfully, and we are waiting to PLOGI back 4510 * to the remote NPort. In addition, it is called after we receive 4511 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4512 * we are waiting to PLOGI back to the remote NPort. 4513 */ 4514 int 4515 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4516 { 4517 struct lpfc_hba *phba = vport->phba; 4518 LPFC_MBOXQ_t *mbox; 4519 int rc, acc_plogi = 1; 4520 uint16_t rpi; 4521 4522 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4523 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4524 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4525 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4526 "3366 RPI x%x needs to be " 4527 "unregistered nlp_flag x%x " 4528 "did x%x\n", 4529 ndlp->nlp_rpi, ndlp->nlp_flag, 4530 ndlp->nlp_DID); 4531 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4532 if (mbox) { 4533 /* SLI4 ports require the physical rpi value. */ 4534 rpi = ndlp->nlp_rpi; 4535 if (phba->sli_rev == LPFC_SLI_REV4) 4536 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4537 4538 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4539 mbox->vport = vport; 4540 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4541 mbox->context1 = ndlp; 4542 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4543 } else { 4544 if (phba->sli_rev == LPFC_SLI_REV4 && 4545 (!(vport->load_flag & FC_UNLOADING)) && 4546 (bf_get(lpfc_sli_intf_if_type, 4547 &phba->sli4_hba.sli_intf) == 4548 LPFC_SLI_INTF_IF_TYPE_2)) { 4549 mbox->context1 = lpfc_nlp_get(ndlp); 4550 mbox->mbox_cmpl = 4551 lpfc_sli4_unreg_rpi_cmpl_clr; 4552 /* 4553 * accept PLOGIs after unreg_rpi_cmpl 4554 */ 4555 acc_plogi = 0; 4556 } else 4557 mbox->mbox_cmpl = 4558 lpfc_sli_def_mbox_cmpl; 4559 } 4560 4561 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4562 if (rc == MBX_NOT_FINISHED) { 4563 mempool_free(mbox, phba->mbox_mem_pool); 4564 acc_plogi = 1; 4565 } 4566 } 4567 lpfc_no_rpi(phba, ndlp); 4568 4569 if (phba->sli_rev != LPFC_SLI_REV4) 4570 ndlp->nlp_rpi = 0; 4571 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4572 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4573 if (acc_plogi) 4574 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4575 return 1; 4576 } 4577 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4578 return 0; 4579 } 4580 4581 /** 4582 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4583 * @phba: pointer to lpfc hba data structure. 4584 * 4585 * This routine is invoked to unregister all the currently registered RPIs 4586 * to the HBA. 4587 **/ 4588 void 4589 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4590 { 4591 struct lpfc_vport **vports; 4592 struct lpfc_nodelist *ndlp; 4593 struct Scsi_Host *shost; 4594 int i; 4595 4596 vports = lpfc_create_vport_work_array(phba); 4597 if (!vports) { 4598 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4599 "2884 Vport array allocation failed \n"); 4600 return; 4601 } 4602 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4603 shost = lpfc_shost_from_vport(vports[i]); 4604 spin_lock_irq(shost->host_lock); 4605 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4606 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4607 /* The mempool_alloc might sleep */ 4608 spin_unlock_irq(shost->host_lock); 4609 lpfc_unreg_rpi(vports[i], ndlp); 4610 spin_lock_irq(shost->host_lock); 4611 } 4612 } 4613 spin_unlock_irq(shost->host_lock); 4614 } 4615 lpfc_destroy_vport_work_array(phba, vports); 4616 } 4617 4618 void 4619 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4620 { 4621 struct lpfc_hba *phba = vport->phba; 4622 LPFC_MBOXQ_t *mbox; 4623 int rc; 4624 4625 if (phba->sli_rev == LPFC_SLI_REV4) { 4626 lpfc_sli4_unreg_all_rpis(vport); 4627 return; 4628 } 4629 4630 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4631 if (mbox) { 4632 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4633 mbox); 4634 mbox->vport = vport; 4635 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4636 mbox->context1 = NULL; 4637 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4638 if (rc != MBX_TIMEOUT) 4639 mempool_free(mbox, phba->mbox_mem_pool); 4640 4641 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4642 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4643 "1836 Could not issue " 4644 "unreg_login(all_rpis) status %d\n", rc); 4645 } 4646 } 4647 4648 void 4649 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4650 { 4651 struct lpfc_hba *phba = vport->phba; 4652 LPFC_MBOXQ_t *mbox; 4653 int rc; 4654 4655 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4656 if (mbox) { 4657 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4658 mbox); 4659 mbox->vport = vport; 4660 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4661 mbox->context1 = NULL; 4662 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4663 if (rc != MBX_TIMEOUT) 4664 mempool_free(mbox, phba->mbox_mem_pool); 4665 4666 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4667 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4668 "1815 Could not issue " 4669 "unreg_did (default rpis) status %d\n", 4670 rc); 4671 } 4672 } 4673 4674 /* 4675 * Free resources associated with LPFC_NODELIST entry 4676 * so it can be freed. 4677 */ 4678 static int 4679 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4680 { 4681 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4682 struct lpfc_hba *phba = vport->phba; 4683 LPFC_MBOXQ_t *mb, *nextmb; 4684 struct lpfc_dmabuf *mp; 4685 4686 /* Cleanup node for NPort <nlp_DID> */ 4687 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4688 "0900 Cleanup node for NPort x%x " 4689 "Data: x%x x%x x%x\n", 4690 ndlp->nlp_DID, ndlp->nlp_flag, 4691 ndlp->nlp_state, ndlp->nlp_rpi); 4692 if (NLP_CHK_FREE_REQ(ndlp)) { 4693 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4694 "0280 lpfc_cleanup_node: ndlp:x%p " 4695 "usgmap:x%x refcnt:%d\n", 4696 (void *)ndlp, ndlp->nlp_usg_map, 4697 atomic_read(&ndlp->kref.refcount)); 4698 lpfc_dequeue_node(vport, ndlp); 4699 } else { 4700 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4701 "0281 lpfc_cleanup_node: ndlp:x%p " 4702 "usgmap:x%x refcnt:%d\n", 4703 (void *)ndlp, ndlp->nlp_usg_map, 4704 atomic_read(&ndlp->kref.refcount)); 4705 lpfc_disable_node(vport, ndlp); 4706 } 4707 4708 4709 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4710 4711 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4712 if ((mb = phba->sli.mbox_active)) { 4713 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4714 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4715 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4716 mb->context2 = NULL; 4717 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4718 } 4719 } 4720 4721 spin_lock_irq(&phba->hbalock); 4722 /* Cleanup REG_LOGIN completions which are not yet processed */ 4723 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4724 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4725 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4726 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4727 continue; 4728 4729 mb->context2 = NULL; 4730 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4731 } 4732 4733 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4734 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4735 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4736 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4737 mp = (struct lpfc_dmabuf *) (mb->context1); 4738 if (mp) { 4739 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4740 kfree(mp); 4741 } 4742 list_del(&mb->list); 4743 mempool_free(mb, phba->mbox_mem_pool); 4744 /* We shall not invoke the lpfc_nlp_put to decrement 4745 * the ndlp reference count as we are in the process 4746 * of lpfc_nlp_release. 4747 */ 4748 } 4749 } 4750 spin_unlock_irq(&phba->hbalock); 4751 4752 lpfc_els_abort(phba, ndlp); 4753 4754 spin_lock_irq(shost->host_lock); 4755 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4756 spin_unlock_irq(shost->host_lock); 4757 4758 ndlp->nlp_last_elscmd = 0; 4759 del_timer_sync(&ndlp->nlp_delayfunc); 4760 4761 list_del_init(&ndlp->els_retry_evt.evt_listp); 4762 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4763 lpfc_cleanup_vports_rrqs(vport, ndlp); 4764 lpfc_unreg_rpi(vport, ndlp); 4765 4766 return 0; 4767 } 4768 4769 /* 4770 * Check to see if we can free the nlp back to the freelist. 4771 * If we are in the middle of using the nlp in the discovery state 4772 * machine, defer the free till we reach the end of the state machine. 4773 */ 4774 static void 4775 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4776 { 4777 struct lpfc_hba *phba = vport->phba; 4778 struct lpfc_rport_data *rdata; 4779 struct fc_rport *rport; 4780 LPFC_MBOXQ_t *mbox; 4781 int rc; 4782 4783 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4784 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4785 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4786 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4787 /* For this case we need to cleanup the default rpi 4788 * allocated by the firmware. 4789 */ 4790 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4791 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4792 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4793 atomic_read(&ndlp->kref.refcount), 4794 ndlp->nlp_usg_map, ndlp); 4795 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4796 != NULL) { 4797 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4798 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4799 if (rc) { 4800 mempool_free(mbox, phba->mbox_mem_pool); 4801 } 4802 else { 4803 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4804 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4805 mbox->vport = vport; 4806 mbox->context2 = ndlp; 4807 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4808 if (rc == MBX_NOT_FINISHED) { 4809 mempool_free(mbox, phba->mbox_mem_pool); 4810 } 4811 } 4812 } 4813 } 4814 lpfc_cleanup_node(vport, ndlp); 4815 4816 /* 4817 * ndlp->rport must be set to NULL before it reaches here 4818 * i.e. break rport/node link before doing lpfc_nlp_put for 4819 * registered rport and then drop the reference of rport. 4820 */ 4821 if (ndlp->rport) { 4822 /* 4823 * extra lpfc_nlp_put dropped the reference of ndlp 4824 * for registered rport so need to cleanup rport 4825 */ 4826 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4827 "0940 removed node x%p DID x%x " 4828 " rport not null %p\n", 4829 ndlp, ndlp->nlp_DID, ndlp->rport); 4830 rport = ndlp->rport; 4831 rdata = rport->dd_data; 4832 rdata->pnode = NULL; 4833 ndlp->rport = NULL; 4834 put_device(&rport->dev); 4835 } 4836 } 4837 4838 static int 4839 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4840 uint32_t did) 4841 { 4842 D_ID mydid, ndlpdid, matchdid; 4843 4844 if (did == Bcast_DID) 4845 return 0; 4846 4847 /* First check for Direct match */ 4848 if (ndlp->nlp_DID == did) 4849 return 1; 4850 4851 /* Next check for area/domain identically equals 0 match */ 4852 mydid.un.word = vport->fc_myDID; 4853 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 4854 return 0; 4855 } 4856 4857 matchdid.un.word = did; 4858 ndlpdid.un.word = ndlp->nlp_DID; 4859 if (matchdid.un.b.id == ndlpdid.un.b.id) { 4860 if ((mydid.un.b.domain == matchdid.un.b.domain) && 4861 (mydid.un.b.area == matchdid.un.b.area)) { 4862 /* This code is supposed to match the ID 4863 * for a private loop device that is 4864 * connect to fl_port. But we need to 4865 * check that the port did not just go 4866 * from pt2pt to fabric or we could end 4867 * up matching ndlp->nlp_DID 000001 to 4868 * fabric DID 0x20101 4869 */ 4870 if ((ndlpdid.un.b.domain == 0) && 4871 (ndlpdid.un.b.area == 0)) { 4872 if (ndlpdid.un.b.id && 4873 vport->phba->fc_topology == 4874 LPFC_TOPOLOGY_LOOP) 4875 return 1; 4876 } 4877 return 0; 4878 } 4879 4880 matchdid.un.word = ndlp->nlp_DID; 4881 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 4882 (mydid.un.b.area == ndlpdid.un.b.area)) { 4883 if ((matchdid.un.b.domain == 0) && 4884 (matchdid.un.b.area == 0)) { 4885 if (matchdid.un.b.id) 4886 return 1; 4887 } 4888 } 4889 } 4890 return 0; 4891 } 4892 4893 /* Search for a nodelist entry */ 4894 static struct lpfc_nodelist * 4895 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4896 { 4897 struct lpfc_nodelist *ndlp; 4898 uint32_t data1; 4899 4900 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4901 if (lpfc_matchdid(vport, ndlp, did)) { 4902 data1 = (((uint32_t) ndlp->nlp_state << 24) | 4903 ((uint32_t) ndlp->nlp_xri << 16) | 4904 ((uint32_t) ndlp->nlp_type << 8) | 4905 ((uint32_t) ndlp->nlp_rpi & 0xff)); 4906 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4907 "0929 FIND node DID " 4908 "Data: x%p x%x x%x x%x %p\n", 4909 ndlp, ndlp->nlp_DID, 4910 ndlp->nlp_flag, data1, 4911 ndlp->active_rrqs_xri_bitmap); 4912 return ndlp; 4913 } 4914 } 4915 4916 /* FIND node did <did> NOT FOUND */ 4917 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4918 "0932 FIND node did x%x NOT FOUND.\n", did); 4919 return NULL; 4920 } 4921 4922 struct lpfc_nodelist * 4923 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4924 { 4925 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4926 struct lpfc_nodelist *ndlp; 4927 unsigned long iflags; 4928 4929 spin_lock_irqsave(shost->host_lock, iflags); 4930 ndlp = __lpfc_findnode_did(vport, did); 4931 spin_unlock_irqrestore(shost->host_lock, iflags); 4932 return ndlp; 4933 } 4934 4935 struct lpfc_nodelist * 4936 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 4937 { 4938 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4939 struct lpfc_nodelist *ndlp; 4940 4941 ndlp = lpfc_findnode_did(vport, did); 4942 if (!ndlp) { 4943 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 4944 lpfc_rscn_payload_check(vport, did) == 0) 4945 return NULL; 4946 ndlp = (struct lpfc_nodelist *) 4947 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 4948 if (!ndlp) 4949 return NULL; 4950 lpfc_nlp_init(vport, ndlp, did); 4951 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4952 spin_lock_irq(shost->host_lock); 4953 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4954 spin_unlock_irq(shost->host_lock); 4955 return ndlp; 4956 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4957 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 4958 if (!ndlp) 4959 return NULL; 4960 spin_lock_irq(shost->host_lock); 4961 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4962 spin_unlock_irq(shost->host_lock); 4963 return ndlp; 4964 } 4965 4966 if ((vport->fc_flag & FC_RSCN_MODE) && 4967 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 4968 if (lpfc_rscn_payload_check(vport, did)) { 4969 /* If we've already received a PLOGI from this NPort 4970 * we don't need to try to discover it again. 4971 */ 4972 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 4973 return NULL; 4974 4975 /* Since this node is marked for discovery, 4976 * delay timeout is not needed. 4977 */ 4978 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4979 spin_lock_irq(shost->host_lock); 4980 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4981 spin_unlock_irq(shost->host_lock); 4982 } else 4983 ndlp = NULL; 4984 } else { 4985 /* If we've already received a PLOGI from this NPort, 4986 * or we are already in the process of discovery on it, 4987 * we don't need to try to discover it again. 4988 */ 4989 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 4990 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 4991 ndlp->nlp_flag & NLP_RCV_PLOGI) 4992 return NULL; 4993 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4994 spin_lock_irq(shost->host_lock); 4995 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4996 spin_unlock_irq(shost->host_lock); 4997 } 4998 return ndlp; 4999 } 5000 5001 /* Build a list of nodes to discover based on the loopmap */ 5002 void 5003 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5004 { 5005 struct lpfc_hba *phba = vport->phba; 5006 int j; 5007 uint32_t alpa, index; 5008 5009 if (!lpfc_is_link_up(phba)) 5010 return; 5011 5012 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5013 return; 5014 5015 /* Check for loop map present or not */ 5016 if (phba->alpa_map[0]) { 5017 for (j = 1; j <= phba->alpa_map[0]; j++) { 5018 alpa = phba->alpa_map[j]; 5019 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5020 continue; 5021 lpfc_setup_disc_node(vport, alpa); 5022 } 5023 } else { 5024 /* No alpamap, so try all alpa's */ 5025 for (j = 0; j < FC_MAXLOOP; j++) { 5026 /* If cfg_scan_down is set, start from highest 5027 * ALPA (0xef) to lowest (0x1). 5028 */ 5029 if (vport->cfg_scan_down) 5030 index = j; 5031 else 5032 index = FC_MAXLOOP - j - 1; 5033 alpa = lpfcAlpaArray[index]; 5034 if ((vport->fc_myDID & 0xff) == alpa) 5035 continue; 5036 lpfc_setup_disc_node(vport, alpa); 5037 } 5038 } 5039 return; 5040 } 5041 5042 void 5043 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5044 { 5045 LPFC_MBOXQ_t *mbox; 5046 struct lpfc_sli *psli = &phba->sli; 5047 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 5048 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 5049 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 5050 int rc; 5051 5052 /* 5053 * if it's not a physical port or if we already send 5054 * clear_la then don't send it. 5055 */ 5056 if ((phba->link_state >= LPFC_CLEAR_LA) || 5057 (vport->port_type != LPFC_PHYSICAL_PORT) || 5058 (phba->sli_rev == LPFC_SLI_REV4)) 5059 return; 5060 5061 /* Link up discovery */ 5062 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5063 phba->link_state = LPFC_CLEAR_LA; 5064 lpfc_clear_la(phba, mbox); 5065 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5066 mbox->vport = vport; 5067 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5068 if (rc == MBX_NOT_FINISHED) { 5069 mempool_free(mbox, phba->mbox_mem_pool); 5070 lpfc_disc_flush_list(vport); 5071 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5072 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5073 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5074 phba->link_state = LPFC_HBA_ERROR; 5075 } 5076 } 5077 } 5078 5079 /* Reg_vpi to tell firmware to resume normal operations */ 5080 void 5081 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5082 { 5083 LPFC_MBOXQ_t *regvpimbox; 5084 5085 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5086 if (regvpimbox) { 5087 lpfc_reg_vpi(vport, regvpimbox); 5088 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5089 regvpimbox->vport = vport; 5090 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5091 == MBX_NOT_FINISHED) { 5092 mempool_free(regvpimbox, phba->mbox_mem_pool); 5093 } 5094 } 5095 } 5096 5097 /* Start Link up / RSCN discovery on NPR nodes */ 5098 void 5099 lpfc_disc_start(struct lpfc_vport *vport) 5100 { 5101 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5102 struct lpfc_hba *phba = vport->phba; 5103 uint32_t num_sent; 5104 uint32_t clear_la_pending; 5105 5106 if (!lpfc_is_link_up(phba)) { 5107 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5108 "3315 Link is not up %x\n", 5109 phba->link_state); 5110 return; 5111 } 5112 5113 if (phba->link_state == LPFC_CLEAR_LA) 5114 clear_la_pending = 1; 5115 else 5116 clear_la_pending = 0; 5117 5118 if (vport->port_state < LPFC_VPORT_READY) 5119 vport->port_state = LPFC_DISC_AUTH; 5120 5121 lpfc_set_disctmo(vport); 5122 5123 vport->fc_prevDID = vport->fc_myDID; 5124 vport->num_disc_nodes = 0; 5125 5126 /* Start Discovery state <hba_state> */ 5127 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5128 "0202 Start Discovery hba state x%x " 5129 "Data: x%x x%x x%x\n", 5130 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5131 vport->fc_adisc_cnt); 5132 5133 /* First do ADISCs - if any */ 5134 num_sent = lpfc_els_disc_adisc(vport); 5135 5136 if (num_sent) 5137 return; 5138 5139 /* Register the VPI for SLI3, NPIV only. */ 5140 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5141 !(vport->fc_flag & FC_PT2PT) && 5142 !(vport->fc_flag & FC_RSCN_MODE) && 5143 (phba->sli_rev < LPFC_SLI_REV4)) { 5144 lpfc_issue_clear_la(phba, vport); 5145 lpfc_issue_reg_vpi(phba, vport); 5146 return; 5147 } 5148 5149 /* 5150 * For SLI2, we need to set port_state to READY and continue 5151 * discovery. 5152 */ 5153 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5154 /* If we get here, there is nothing to ADISC */ 5155 lpfc_issue_clear_la(phba, vport); 5156 5157 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5158 vport->num_disc_nodes = 0; 5159 /* go thru NPR nodes and issue ELS PLOGIs */ 5160 if (vport->fc_npr_cnt) 5161 lpfc_els_disc_plogi(vport); 5162 5163 if (!vport->num_disc_nodes) { 5164 spin_lock_irq(shost->host_lock); 5165 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5166 spin_unlock_irq(shost->host_lock); 5167 lpfc_can_disctmo(vport); 5168 } 5169 } 5170 vport->port_state = LPFC_VPORT_READY; 5171 } else { 5172 /* Next do PLOGIs - if any */ 5173 num_sent = lpfc_els_disc_plogi(vport); 5174 5175 if (num_sent) 5176 return; 5177 5178 if (vport->fc_flag & FC_RSCN_MODE) { 5179 /* Check to see if more RSCNs came in while we 5180 * were processing this one. 5181 */ 5182 if ((vport->fc_rscn_id_cnt == 0) && 5183 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5184 spin_lock_irq(shost->host_lock); 5185 vport->fc_flag &= ~FC_RSCN_MODE; 5186 spin_unlock_irq(shost->host_lock); 5187 lpfc_can_disctmo(vport); 5188 } else 5189 lpfc_els_handle_rscn(vport); 5190 } 5191 } 5192 return; 5193 } 5194 5195 /* 5196 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5197 * ring the match the sppecified nodelist. 5198 */ 5199 static void 5200 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5201 { 5202 LIST_HEAD(completions); 5203 struct lpfc_sli *psli; 5204 IOCB_t *icmd; 5205 struct lpfc_iocbq *iocb, *next_iocb; 5206 struct lpfc_sli_ring *pring; 5207 5208 psli = &phba->sli; 5209 pring = &psli->ring[LPFC_ELS_RING]; 5210 5211 /* Error matching iocb on txq or txcmplq 5212 * First check the txq. 5213 */ 5214 spin_lock_irq(&phba->hbalock); 5215 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5216 if (iocb->context1 != ndlp) { 5217 continue; 5218 } 5219 icmd = &iocb->iocb; 5220 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5221 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5222 5223 list_move_tail(&iocb->list, &completions); 5224 } 5225 } 5226 5227 /* Next check the txcmplq */ 5228 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5229 if (iocb->context1 != ndlp) { 5230 continue; 5231 } 5232 icmd = &iocb->iocb; 5233 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5234 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5235 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5236 } 5237 } 5238 spin_unlock_irq(&phba->hbalock); 5239 5240 /* Cancel all the IOCBs from the completions list */ 5241 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5242 IOERR_SLI_ABORTED); 5243 } 5244 5245 static void 5246 lpfc_disc_flush_list(struct lpfc_vport *vport) 5247 { 5248 struct lpfc_nodelist *ndlp, *next_ndlp; 5249 struct lpfc_hba *phba = vport->phba; 5250 5251 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5252 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5253 nlp_listp) { 5254 if (!NLP_CHK_NODE_ACT(ndlp)) 5255 continue; 5256 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5257 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5258 lpfc_free_tx(phba, ndlp); 5259 } 5260 } 5261 } 5262 } 5263 5264 void 5265 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5266 { 5267 lpfc_els_flush_rscn(vport); 5268 lpfc_els_flush_cmd(vport); 5269 lpfc_disc_flush_list(vport); 5270 } 5271 5272 /*****************************************************************************/ 5273 /* 5274 * NAME: lpfc_disc_timeout 5275 * 5276 * FUNCTION: Fibre Channel driver discovery timeout routine. 5277 * 5278 * EXECUTION ENVIRONMENT: interrupt only 5279 * 5280 * CALLED FROM: 5281 * Timer function 5282 * 5283 * RETURNS: 5284 * none 5285 */ 5286 /*****************************************************************************/ 5287 void 5288 lpfc_disc_timeout(unsigned long ptr) 5289 { 5290 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5291 struct lpfc_hba *phba = vport->phba; 5292 uint32_t tmo_posted; 5293 unsigned long flags = 0; 5294 5295 if (unlikely(!phba)) 5296 return; 5297 5298 spin_lock_irqsave(&vport->work_port_lock, flags); 5299 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5300 if (!tmo_posted) 5301 vport->work_port_events |= WORKER_DISC_TMO; 5302 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5303 5304 if (!tmo_posted) 5305 lpfc_worker_wake_up(phba); 5306 return; 5307 } 5308 5309 static void 5310 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5311 { 5312 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5313 struct lpfc_hba *phba = vport->phba; 5314 struct lpfc_sli *psli = &phba->sli; 5315 struct lpfc_nodelist *ndlp, *next_ndlp; 5316 LPFC_MBOXQ_t *initlinkmbox; 5317 int rc, clrlaerr = 0; 5318 5319 if (!(vport->fc_flag & FC_DISC_TMO)) 5320 return; 5321 5322 spin_lock_irq(shost->host_lock); 5323 vport->fc_flag &= ~FC_DISC_TMO; 5324 spin_unlock_irq(shost->host_lock); 5325 5326 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5327 "disc timeout: state:x%x rtry:x%x flg:x%x", 5328 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5329 5330 switch (vport->port_state) { 5331 5332 case LPFC_LOCAL_CFG_LINK: 5333 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 5334 * FAN 5335 */ 5336 /* FAN timeout */ 5337 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5338 "0221 FAN timeout\n"); 5339 /* Start discovery by sending FLOGI, clean up old rpis */ 5340 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5341 nlp_listp) { 5342 if (!NLP_CHK_NODE_ACT(ndlp)) 5343 continue; 5344 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5345 continue; 5346 if (ndlp->nlp_type & NLP_FABRIC) { 5347 /* Clean up the ndlp on Fabric connections */ 5348 lpfc_drop_node(vport, ndlp); 5349 5350 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5351 /* Fail outstanding IO now since device 5352 * is marked for PLOGI. 5353 */ 5354 lpfc_unreg_rpi(vport, ndlp); 5355 } 5356 } 5357 if (vport->port_state != LPFC_FLOGI) { 5358 if (phba->sli_rev <= LPFC_SLI_REV3) 5359 lpfc_initial_flogi(vport); 5360 else 5361 lpfc_issue_init_vfi(vport); 5362 return; 5363 } 5364 break; 5365 5366 case LPFC_FDISC: 5367 case LPFC_FLOGI: 5368 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5369 /* Initial FLOGI timeout */ 5370 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5371 "0222 Initial %s timeout\n", 5372 vport->vpi ? "FDISC" : "FLOGI"); 5373 5374 /* Assume no Fabric and go on with discovery. 5375 * Check for outstanding ELS FLOGI to abort. 5376 */ 5377 5378 /* FLOGI failed, so just use loop map to make discovery list */ 5379 lpfc_disc_list_loopmap(vport); 5380 5381 /* Start discovery */ 5382 lpfc_disc_start(vport); 5383 break; 5384 5385 case LPFC_FABRIC_CFG_LINK: 5386 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5387 NameServer login */ 5388 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5389 "0223 Timeout while waiting for " 5390 "NameServer login\n"); 5391 /* Next look for NameServer ndlp */ 5392 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5393 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5394 lpfc_els_abort(phba, ndlp); 5395 5396 /* ReStart discovery */ 5397 goto restart_disc; 5398 5399 case LPFC_NS_QRY: 5400 /* Check for wait for NameServer Rsp timeout */ 5401 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5402 "0224 NameServer Query timeout " 5403 "Data: x%x x%x\n", 5404 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5405 5406 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5407 /* Try it one more time */ 5408 vport->fc_ns_retry++; 5409 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 5410 vport->fc_ns_retry, 0); 5411 if (rc == 0) 5412 break; 5413 } 5414 vport->fc_ns_retry = 0; 5415 5416 restart_disc: 5417 /* 5418 * Discovery is over. 5419 * set port_state to PORT_READY if SLI2. 5420 * cmpl_reg_vpi will set port_state to READY for SLI3. 5421 */ 5422 if (phba->sli_rev < LPFC_SLI_REV4) { 5423 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5424 lpfc_issue_reg_vpi(phba, vport); 5425 else { 5426 lpfc_issue_clear_la(phba, vport); 5427 vport->port_state = LPFC_VPORT_READY; 5428 } 5429 } 5430 5431 /* Setup and issue mailbox INITIALIZE LINK command */ 5432 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5433 if (!initlinkmbox) { 5434 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5435 "0206 Device Discovery " 5436 "completion error\n"); 5437 phba->link_state = LPFC_HBA_ERROR; 5438 break; 5439 } 5440 5441 lpfc_linkdown(phba); 5442 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5443 phba->cfg_link_speed); 5444 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5445 initlinkmbox->vport = vport; 5446 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5447 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5448 lpfc_set_loopback_flag(phba); 5449 if (rc == MBX_NOT_FINISHED) 5450 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5451 5452 break; 5453 5454 case LPFC_DISC_AUTH: 5455 /* Node Authentication timeout */ 5456 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5457 "0227 Node Authentication timeout\n"); 5458 lpfc_disc_flush_list(vport); 5459 5460 /* 5461 * set port_state to PORT_READY if SLI2. 5462 * cmpl_reg_vpi will set port_state to READY for SLI3. 5463 */ 5464 if (phba->sli_rev < LPFC_SLI_REV4) { 5465 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5466 lpfc_issue_reg_vpi(phba, vport); 5467 else { /* NPIV Not enabled */ 5468 lpfc_issue_clear_la(phba, vport); 5469 vport->port_state = LPFC_VPORT_READY; 5470 } 5471 } 5472 break; 5473 5474 case LPFC_VPORT_READY: 5475 if (vport->fc_flag & FC_RSCN_MODE) { 5476 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5477 "0231 RSCN timeout Data: x%x " 5478 "x%x\n", 5479 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5480 5481 /* Cleanup any outstanding ELS commands */ 5482 lpfc_els_flush_cmd(vport); 5483 5484 lpfc_els_flush_rscn(vport); 5485 lpfc_disc_flush_list(vport); 5486 } 5487 break; 5488 5489 default: 5490 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5491 "0273 Unexpected discovery timeout, " 5492 "vport State x%x\n", vport->port_state); 5493 break; 5494 } 5495 5496 switch (phba->link_state) { 5497 case LPFC_CLEAR_LA: 5498 /* CLEAR LA timeout */ 5499 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5500 "0228 CLEAR LA timeout\n"); 5501 clrlaerr = 1; 5502 break; 5503 5504 case LPFC_LINK_UP: 5505 lpfc_issue_clear_la(phba, vport); 5506 /* Drop thru */ 5507 case LPFC_LINK_UNKNOWN: 5508 case LPFC_WARM_START: 5509 case LPFC_INIT_START: 5510 case LPFC_INIT_MBX_CMDS: 5511 case LPFC_LINK_DOWN: 5512 case LPFC_HBA_ERROR: 5513 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5514 "0230 Unexpected timeout, hba link " 5515 "state x%x\n", phba->link_state); 5516 clrlaerr = 1; 5517 break; 5518 5519 case LPFC_HBA_READY: 5520 break; 5521 } 5522 5523 if (clrlaerr) { 5524 lpfc_disc_flush_list(vport); 5525 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5526 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5527 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5528 vport->port_state = LPFC_VPORT_READY; 5529 } 5530 5531 return; 5532 } 5533 5534 /* 5535 * This routine handles processing a NameServer REG_LOGIN mailbox 5536 * command upon completion. It is setup in the LPFC_MBOXQ 5537 * as the completion routine when the command is 5538 * handed off to the SLI layer. 5539 */ 5540 void 5541 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5542 { 5543 MAILBOX_t *mb = &pmb->u.mb; 5544 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5545 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5546 struct lpfc_vport *vport = pmb->vport; 5547 5548 pmb->context1 = NULL; 5549 pmb->context2 = NULL; 5550 5551 if (phba->sli_rev < LPFC_SLI_REV4) 5552 ndlp->nlp_rpi = mb->un.varWords[0]; 5553 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5554 ndlp->nlp_type |= NLP_FABRIC; 5555 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5556 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5557 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5558 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5559 atomic_read(&ndlp->kref.refcount), 5560 ndlp->nlp_usg_map, ndlp); 5561 /* 5562 * Start issuing Fabric-Device Management Interface (FDMI) command to 5563 * 0xfffffa (FDMI well known port). 5564 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5565 * DPRT -> RPRT (vports) 5566 */ 5567 if (vport->port_type == LPFC_PHYSICAL_PORT) 5568 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5569 else 5570 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5571 5572 5573 /* decrement the node reference count held for this callback 5574 * function. 5575 */ 5576 lpfc_nlp_put(ndlp); 5577 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5578 kfree(mp); 5579 mempool_free(pmb, phba->mbox_mem_pool); 5580 5581 return; 5582 } 5583 5584 static int 5585 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5586 { 5587 uint16_t *rpi = param; 5588 5589 /* check for active node */ 5590 if (!NLP_CHK_NODE_ACT(ndlp)) 5591 return 0; 5592 5593 return ndlp->nlp_rpi == *rpi; 5594 } 5595 5596 static int 5597 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5598 { 5599 return memcmp(&ndlp->nlp_portname, param, 5600 sizeof(ndlp->nlp_portname)) == 0; 5601 } 5602 5603 static struct lpfc_nodelist * 5604 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5605 { 5606 struct lpfc_nodelist *ndlp; 5607 5608 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5609 if (filter(ndlp, param)) { 5610 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5611 "3185 FIND node filter %p DID " 5612 "Data: x%p x%x x%x\n", 5613 filter, ndlp, ndlp->nlp_DID, 5614 ndlp->nlp_flag); 5615 return ndlp; 5616 } 5617 } 5618 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5619 "3186 FIND node filter %p NOT FOUND.\n", filter); 5620 return NULL; 5621 } 5622 5623 /* 5624 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5625 * returns the node list element pointer else return NULL. 5626 */ 5627 struct lpfc_nodelist * 5628 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5629 { 5630 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5631 } 5632 5633 /* 5634 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5635 * returns the node element list pointer else return NULL. 5636 */ 5637 struct lpfc_nodelist * 5638 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5639 { 5640 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5641 struct lpfc_nodelist *ndlp; 5642 5643 spin_lock_irq(shost->host_lock); 5644 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5645 spin_unlock_irq(shost->host_lock); 5646 return ndlp; 5647 } 5648 5649 /* 5650 * This routine looks up the ndlp lists for the given RPI. If the rpi 5651 * is found, the routine returns the node element list pointer else 5652 * return NULL. 5653 */ 5654 struct lpfc_nodelist * 5655 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5656 { 5657 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5658 struct lpfc_nodelist *ndlp; 5659 5660 spin_lock_irq(shost->host_lock); 5661 ndlp = __lpfc_findnode_rpi(vport, rpi); 5662 spin_unlock_irq(shost->host_lock); 5663 return ndlp; 5664 } 5665 5666 /** 5667 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5668 * @phba: pointer to lpfc hba data structure. 5669 * @vpi: the physical host virtual N_Port identifier. 5670 * 5671 * This routine finds a vport on a HBA (referred by @phba) through a 5672 * @vpi. The function walks the HBA's vport list and returns the address 5673 * of the vport with the matching @vpi. 5674 * 5675 * Return code 5676 * NULL - No vport with the matching @vpi found 5677 * Otherwise - Address to the vport with the matching @vpi. 5678 **/ 5679 struct lpfc_vport * 5680 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5681 { 5682 struct lpfc_vport *vport; 5683 unsigned long flags; 5684 int i = 0; 5685 5686 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5687 if (vpi > 0) { 5688 /* 5689 * Translate the physical vpi to the logical vpi. The 5690 * vport stores the logical vpi. 5691 */ 5692 for (i = 0; i < phba->max_vpi; i++) { 5693 if (vpi == phba->vpi_ids[i]) 5694 break; 5695 } 5696 5697 if (i >= phba->max_vpi) { 5698 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5699 "2936 Could not find Vport mapped " 5700 "to vpi %d\n", vpi); 5701 return NULL; 5702 } 5703 } 5704 5705 spin_lock_irqsave(&phba->hbalock, flags); 5706 list_for_each_entry(vport, &phba->port_list, listentry) { 5707 if (vport->vpi == i) { 5708 spin_unlock_irqrestore(&phba->hbalock, flags); 5709 return vport; 5710 } 5711 } 5712 spin_unlock_irqrestore(&phba->hbalock, flags); 5713 return NULL; 5714 } 5715 5716 void 5717 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5718 uint32_t did) 5719 { 5720 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5721 5722 lpfc_initialize_node(vport, ndlp, did); 5723 INIT_LIST_HEAD(&ndlp->nlp_listp); 5724 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5725 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 5726 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5727 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5728 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5729 ndlp->nlp_flag, 5730 atomic_read(&ndlp->kref.refcount), 5731 ndlp->nlp_usg_map, ndlp); 5732 5733 ndlp->active_rrqs_xri_bitmap = 5734 mempool_alloc(vport->phba->active_rrq_pool, 5735 GFP_KERNEL); 5736 if (ndlp->active_rrqs_xri_bitmap) 5737 memset(ndlp->active_rrqs_xri_bitmap, 0, 5738 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5739 } 5740 5741 5742 5743 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5744 "node init: did:x%x", 5745 ndlp->nlp_DID, 0, 0); 5746 5747 return; 5748 } 5749 5750 /* This routine releases all resources associated with a specifc NPort's ndlp 5751 * and mempool_free's the nodelist. 5752 */ 5753 static void 5754 lpfc_nlp_release(struct kref *kref) 5755 { 5756 struct lpfc_hba *phba; 5757 unsigned long flags; 5758 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5759 kref); 5760 5761 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5762 "node release: did:x%x flg:x%x type:x%x", 5763 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5764 5765 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5766 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5767 "usgmap:x%x refcnt:%d rpi:%x\n", 5768 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5769 atomic_read(&ndlp->kref.refcount), ndlp->nlp_rpi); 5770 5771 /* remove ndlp from action. */ 5772 lpfc_nlp_remove(ndlp->vport, ndlp); 5773 5774 /* clear the ndlp active flag for all release cases */ 5775 phba = ndlp->phba; 5776 spin_lock_irqsave(&phba->ndlp_lock, flags); 5777 NLP_CLR_NODE_ACT(ndlp); 5778 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5779 if (phba->sli_rev == LPFC_SLI_REV4) 5780 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5781 5782 /* free ndlp memory for final ndlp release */ 5783 if (NLP_CHK_FREE_REQ(ndlp)) { 5784 kfree(ndlp->lat_data); 5785 if (phba->sli_rev == LPFC_SLI_REV4) 5786 mempool_free(ndlp->active_rrqs_xri_bitmap, 5787 ndlp->phba->active_rrq_pool); 5788 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5789 } 5790 } 5791 5792 /* This routine bumps the reference count for a ndlp structure to ensure 5793 * that one discovery thread won't free a ndlp while another discovery thread 5794 * is using it. 5795 */ 5796 struct lpfc_nodelist * 5797 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5798 { 5799 struct lpfc_hba *phba; 5800 unsigned long flags; 5801 5802 if (ndlp) { 5803 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5804 "node get: did:x%x flg:x%x refcnt:x%x", 5805 ndlp->nlp_DID, ndlp->nlp_flag, 5806 atomic_read(&ndlp->kref.refcount)); 5807 /* The check of ndlp usage to prevent incrementing the 5808 * ndlp reference count that is in the process of being 5809 * released. 5810 */ 5811 phba = ndlp->phba; 5812 spin_lock_irqsave(&phba->ndlp_lock, flags); 5813 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5814 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5815 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5816 "0276 lpfc_nlp_get: ndlp:x%p " 5817 "usgmap:x%x refcnt:%d\n", 5818 (void *)ndlp, ndlp->nlp_usg_map, 5819 atomic_read(&ndlp->kref.refcount)); 5820 return NULL; 5821 } else 5822 kref_get(&ndlp->kref); 5823 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5824 } 5825 return ndlp; 5826 } 5827 5828 /* This routine decrements the reference count for a ndlp structure. If the 5829 * count goes to 0, this indicates the the associated nodelist should be 5830 * freed. Returning 1 indicates the ndlp resource has been released; on the 5831 * other hand, returning 0 indicates the ndlp resource has not been released 5832 * yet. 5833 */ 5834 int 5835 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 5836 { 5837 struct lpfc_hba *phba; 5838 unsigned long flags; 5839 5840 if (!ndlp) 5841 return 1; 5842 5843 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5844 "node put: did:x%x flg:x%x refcnt:x%x", 5845 ndlp->nlp_DID, ndlp->nlp_flag, 5846 atomic_read(&ndlp->kref.refcount)); 5847 phba = ndlp->phba; 5848 spin_lock_irqsave(&phba->ndlp_lock, flags); 5849 /* Check the ndlp memory free acknowledge flag to avoid the 5850 * possible race condition that kref_put got invoked again 5851 * after previous one has done ndlp memory free. 5852 */ 5853 if (NLP_CHK_FREE_ACK(ndlp)) { 5854 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5855 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5856 "0274 lpfc_nlp_put: ndlp:x%p " 5857 "usgmap:x%x refcnt:%d\n", 5858 (void *)ndlp, ndlp->nlp_usg_map, 5859 atomic_read(&ndlp->kref.refcount)); 5860 return 1; 5861 } 5862 /* Check the ndlp inactivate log flag to avoid the possible 5863 * race condition that kref_put got invoked again after ndlp 5864 * is already in inactivating state. 5865 */ 5866 if (NLP_CHK_IACT_REQ(ndlp)) { 5867 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5868 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5869 "0275 lpfc_nlp_put: ndlp:x%p " 5870 "usgmap:x%x refcnt:%d\n", 5871 (void *)ndlp, ndlp->nlp_usg_map, 5872 atomic_read(&ndlp->kref.refcount)); 5873 return 1; 5874 } 5875 /* For last put, mark the ndlp usage flags to make sure no 5876 * other kref_get and kref_put on the same ndlp shall get 5877 * in between the process when the final kref_put has been 5878 * invoked on this ndlp. 5879 */ 5880 if (atomic_read(&ndlp->kref.refcount) == 1) { 5881 /* Indicate ndlp is put to inactive state. */ 5882 NLP_SET_IACT_REQ(ndlp); 5883 /* Acknowledge ndlp memory free has been seen. */ 5884 if (NLP_CHK_FREE_REQ(ndlp)) 5885 NLP_SET_FREE_ACK(ndlp); 5886 } 5887 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5888 /* Note, the kref_put returns 1 when decrementing a reference 5889 * count that was 1, it invokes the release callback function, 5890 * but it still left the reference count as 1 (not actually 5891 * performs the last decrementation). Otherwise, it actually 5892 * decrements the reference count and returns 0. 5893 */ 5894 return kref_put(&ndlp->kref, lpfc_nlp_release); 5895 } 5896 5897 /* This routine free's the specified nodelist if it is not in use 5898 * by any other discovery thread. This routine returns 1 if the 5899 * ndlp has been freed. A return value of 0 indicates the ndlp is 5900 * not yet been released. 5901 */ 5902 int 5903 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 5904 { 5905 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5906 "node not used: did:x%x flg:x%x refcnt:x%x", 5907 ndlp->nlp_DID, ndlp->nlp_flag, 5908 atomic_read(&ndlp->kref.refcount)); 5909 if (atomic_read(&ndlp->kref.refcount) == 1) 5910 if (lpfc_nlp_put(ndlp)) 5911 return 1; 5912 return 0; 5913 } 5914 5915 /** 5916 * lpfc_fcf_inuse - Check if FCF can be unregistered. 5917 * @phba: Pointer to hba context object. 5918 * 5919 * This function iterate through all FC nodes associated 5920 * will all vports to check if there is any node with 5921 * fc_rports associated with it. If there is an fc_rport 5922 * associated with the node, then the node is either in 5923 * discovered state or its devloss_timer is pending. 5924 */ 5925 static int 5926 lpfc_fcf_inuse(struct lpfc_hba *phba) 5927 { 5928 struct lpfc_vport **vports; 5929 int i, ret = 0; 5930 struct lpfc_nodelist *ndlp; 5931 struct Scsi_Host *shost; 5932 5933 vports = lpfc_create_vport_work_array(phba); 5934 5935 /* If driver cannot allocate memory, indicate fcf is in use */ 5936 if (!vports) 5937 return 1; 5938 5939 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5940 shost = lpfc_shost_from_vport(vports[i]); 5941 spin_lock_irq(shost->host_lock); 5942 /* 5943 * IF the CVL_RCVD bit is not set then we have sent the 5944 * flogi. 5945 * If dev_loss fires while we are waiting we do not want to 5946 * unreg the fcf. 5947 */ 5948 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 5949 spin_unlock_irq(shost->host_lock); 5950 ret = 1; 5951 goto out; 5952 } 5953 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5954 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 5955 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 5956 ret = 1; 5957 spin_unlock_irq(shost->host_lock); 5958 goto out; 5959 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5960 ret = 1; 5961 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 5962 "2624 RPI %x DID %x flag %x " 5963 "still logged in\n", 5964 ndlp->nlp_rpi, ndlp->nlp_DID, 5965 ndlp->nlp_flag); 5966 } 5967 } 5968 spin_unlock_irq(shost->host_lock); 5969 } 5970 out: 5971 lpfc_destroy_vport_work_array(phba, vports); 5972 return ret; 5973 } 5974 5975 /** 5976 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 5977 * @phba: Pointer to hba context object. 5978 * @mboxq: Pointer to mailbox object. 5979 * 5980 * This function frees memory associated with the mailbox command. 5981 */ 5982 void 5983 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5984 { 5985 struct lpfc_vport *vport = mboxq->vport; 5986 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5987 5988 if (mboxq->u.mb.mbxStatus) { 5989 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5990 "2555 UNREG_VFI mbxStatus error x%x " 5991 "HBA state x%x\n", 5992 mboxq->u.mb.mbxStatus, vport->port_state); 5993 } 5994 spin_lock_irq(shost->host_lock); 5995 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 5996 spin_unlock_irq(shost->host_lock); 5997 mempool_free(mboxq, phba->mbox_mem_pool); 5998 return; 5999 } 6000 6001 /** 6002 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6003 * @phba: Pointer to hba context object. 6004 * @mboxq: Pointer to mailbox object. 6005 * 6006 * This function frees memory associated with the mailbox command. 6007 */ 6008 static void 6009 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6010 { 6011 struct lpfc_vport *vport = mboxq->vport; 6012 6013 if (mboxq->u.mb.mbxStatus) { 6014 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6015 "2550 UNREG_FCFI mbxStatus error x%x " 6016 "HBA state x%x\n", 6017 mboxq->u.mb.mbxStatus, vport->port_state); 6018 } 6019 mempool_free(mboxq, phba->mbox_mem_pool); 6020 return; 6021 } 6022 6023 /** 6024 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6025 * @phba: Pointer to hba context object. 6026 * 6027 * This function prepare the HBA for unregistering the currently registered 6028 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6029 * VFIs. 6030 */ 6031 int 6032 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6033 { 6034 struct lpfc_vport **vports; 6035 struct lpfc_nodelist *ndlp; 6036 struct Scsi_Host *shost; 6037 int i = 0, rc; 6038 6039 /* Unregister RPIs */ 6040 if (lpfc_fcf_inuse(phba)) 6041 lpfc_unreg_hba_rpis(phba); 6042 6043 /* At this point, all discovery is aborted */ 6044 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6045 6046 /* Unregister VPIs */ 6047 vports = lpfc_create_vport_work_array(phba); 6048 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6049 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6050 /* Stop FLOGI/FDISC retries */ 6051 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6052 if (ndlp) 6053 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6054 lpfc_cleanup_pending_mbox(vports[i]); 6055 if (phba->sli_rev == LPFC_SLI_REV4) 6056 lpfc_sli4_unreg_all_rpis(vports[i]); 6057 lpfc_mbx_unreg_vpi(vports[i]); 6058 shost = lpfc_shost_from_vport(vports[i]); 6059 spin_lock_irq(shost->host_lock); 6060 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6061 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6062 spin_unlock_irq(shost->host_lock); 6063 } 6064 lpfc_destroy_vport_work_array(phba, vports); 6065 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6066 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6067 if (ndlp) 6068 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6069 lpfc_cleanup_pending_mbox(phba->pport); 6070 if (phba->sli_rev == LPFC_SLI_REV4) 6071 lpfc_sli4_unreg_all_rpis(phba->pport); 6072 lpfc_mbx_unreg_vpi(phba->pport); 6073 shost = lpfc_shost_from_vport(phba->pport); 6074 spin_lock_irq(shost->host_lock); 6075 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6076 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6077 spin_unlock_irq(shost->host_lock); 6078 } 6079 6080 /* Cleanup any outstanding ELS commands */ 6081 lpfc_els_flush_all_cmd(phba); 6082 6083 /* Unregister the physical port VFI */ 6084 rc = lpfc_issue_unreg_vfi(phba->pport); 6085 return rc; 6086 } 6087 6088 /** 6089 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6090 * @phba: Pointer to hba context object. 6091 * 6092 * This function issues synchronous unregister FCF mailbox command to HBA to 6093 * unregister the currently registered FCF record. The driver does not reset 6094 * the driver FCF usage state flags. 6095 * 6096 * Return 0 if successfully issued, none-zero otherwise. 6097 */ 6098 int 6099 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6100 { 6101 LPFC_MBOXQ_t *mbox; 6102 int rc; 6103 6104 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6105 if (!mbox) { 6106 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6107 "2551 UNREG_FCFI mbox allocation failed" 6108 "HBA state x%x\n", phba->pport->port_state); 6109 return -ENOMEM; 6110 } 6111 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6112 mbox->vport = phba->pport; 6113 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6114 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6115 6116 if (rc == MBX_NOT_FINISHED) { 6117 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6118 "2552 Unregister FCFI command failed rc x%x " 6119 "HBA state x%x\n", 6120 rc, phba->pport->port_state); 6121 return -EINVAL; 6122 } 6123 return 0; 6124 } 6125 6126 /** 6127 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6128 * @phba: Pointer to hba context object. 6129 * 6130 * This function unregisters the currently reigstered FCF. This function 6131 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6132 */ 6133 void 6134 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6135 { 6136 int rc; 6137 6138 /* Preparation for unregistering fcf */ 6139 rc = lpfc_unregister_fcf_prep(phba); 6140 if (rc) { 6141 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6142 "2748 Failed to prepare for unregistering " 6143 "HBA's FCF record: rc=%d\n", rc); 6144 return; 6145 } 6146 6147 /* Now, unregister FCF record and reset HBA FCF state */ 6148 rc = lpfc_sli4_unregister_fcf(phba); 6149 if (rc) 6150 return; 6151 /* Reset HBA FCF states after successful unregister FCF */ 6152 phba->fcf.fcf_flag = 0; 6153 phba->fcf.current_rec.flag = 0; 6154 6155 /* 6156 * If driver is not unloading, check if there is any other 6157 * FCF record that can be used for discovery. 6158 */ 6159 if ((phba->pport->load_flag & FC_UNLOADING) || 6160 (phba->link_state < LPFC_LINK_UP)) 6161 return; 6162 6163 /* This is considered as the initial FCF discovery scan */ 6164 spin_lock_irq(&phba->hbalock); 6165 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6166 spin_unlock_irq(&phba->hbalock); 6167 6168 /* Reset FCF roundrobin bmask for new discovery */ 6169 lpfc_sli4_clear_fcf_rr_bmask(phba); 6170 6171 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6172 6173 if (rc) { 6174 spin_lock_irq(&phba->hbalock); 6175 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6176 spin_unlock_irq(&phba->hbalock); 6177 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6178 "2553 lpfc_unregister_unused_fcf failed " 6179 "to read FCF record HBA state x%x\n", 6180 phba->pport->port_state); 6181 } 6182 } 6183 6184 /** 6185 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6186 * @phba: Pointer to hba context object. 6187 * 6188 * This function just unregisters the currently reigstered FCF. It does not 6189 * try to find another FCF for discovery. 6190 */ 6191 void 6192 lpfc_unregister_fcf(struct lpfc_hba *phba) 6193 { 6194 int rc; 6195 6196 /* Preparation for unregistering fcf */ 6197 rc = lpfc_unregister_fcf_prep(phba); 6198 if (rc) { 6199 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6200 "2749 Failed to prepare for unregistering " 6201 "HBA's FCF record: rc=%d\n", rc); 6202 return; 6203 } 6204 6205 /* Now, unregister FCF record and reset HBA FCF state */ 6206 rc = lpfc_sli4_unregister_fcf(phba); 6207 if (rc) 6208 return; 6209 /* Set proper HBA FCF states after successful unregister FCF */ 6210 spin_lock_irq(&phba->hbalock); 6211 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6212 spin_unlock_irq(&phba->hbalock); 6213 } 6214 6215 /** 6216 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6217 * @phba: Pointer to hba context object. 6218 * 6219 * This function check if there are any connected remote port for the FCF and 6220 * if all the devices are disconnected, this function unregister FCFI. 6221 * This function also tries to use another FCF for discovery. 6222 */ 6223 void 6224 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6225 { 6226 /* 6227 * If HBA is not running in FIP mode, if HBA does not support 6228 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6229 * registered, do nothing. 6230 */ 6231 spin_lock_irq(&phba->hbalock); 6232 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6233 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6234 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6235 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6236 (phba->pport->port_state == LPFC_FLOGI)) { 6237 spin_unlock_irq(&phba->hbalock); 6238 return; 6239 } 6240 spin_unlock_irq(&phba->hbalock); 6241 6242 if (lpfc_fcf_inuse(phba)) 6243 return; 6244 6245 lpfc_unregister_fcf_rescan(phba); 6246 } 6247 6248 /** 6249 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6250 * @phba: Pointer to hba context object. 6251 * @buff: Buffer containing the FCF connection table as in the config 6252 * region. 6253 * This function create driver data structure for the FCF connection 6254 * record table read from config region 23. 6255 */ 6256 static void 6257 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6258 uint8_t *buff) 6259 { 6260 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6261 struct lpfc_fcf_conn_hdr *conn_hdr; 6262 struct lpfc_fcf_conn_rec *conn_rec; 6263 uint32_t record_count; 6264 int i; 6265 6266 /* Free the current connect table */ 6267 list_for_each_entry_safe(conn_entry, next_conn_entry, 6268 &phba->fcf_conn_rec_list, list) { 6269 list_del_init(&conn_entry->list); 6270 kfree(conn_entry); 6271 } 6272 6273 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6274 record_count = conn_hdr->length * sizeof(uint32_t)/ 6275 sizeof(struct lpfc_fcf_conn_rec); 6276 6277 conn_rec = (struct lpfc_fcf_conn_rec *) 6278 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6279 6280 for (i = 0; i < record_count; i++) { 6281 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6282 continue; 6283 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6284 GFP_KERNEL); 6285 if (!conn_entry) { 6286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6287 "2566 Failed to allocate connection" 6288 " table entry\n"); 6289 return; 6290 } 6291 6292 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6293 sizeof(struct lpfc_fcf_conn_rec)); 6294 list_add_tail(&conn_entry->list, 6295 &phba->fcf_conn_rec_list); 6296 } 6297 6298 if (!list_empty(&phba->fcf_conn_rec_list)) { 6299 i = 0; 6300 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6301 list) { 6302 conn_rec = &conn_entry->conn_rec; 6303 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6304 "3345 FCF connection list rec[%02d]: " 6305 "flags:x%04x, vtag:x%04x, " 6306 "fabric_name:x%02x:%02x:%02x:%02x:" 6307 "%02x:%02x:%02x:%02x, " 6308 "switch_name:x%02x:%02x:%02x:%02x:" 6309 "%02x:%02x:%02x:%02x\n", i++, 6310 conn_rec->flags, conn_rec->vlan_tag, 6311 conn_rec->fabric_name[0], 6312 conn_rec->fabric_name[1], 6313 conn_rec->fabric_name[2], 6314 conn_rec->fabric_name[3], 6315 conn_rec->fabric_name[4], 6316 conn_rec->fabric_name[5], 6317 conn_rec->fabric_name[6], 6318 conn_rec->fabric_name[7], 6319 conn_rec->switch_name[0], 6320 conn_rec->switch_name[1], 6321 conn_rec->switch_name[2], 6322 conn_rec->switch_name[3], 6323 conn_rec->switch_name[4], 6324 conn_rec->switch_name[5], 6325 conn_rec->switch_name[6], 6326 conn_rec->switch_name[7]); 6327 } 6328 } 6329 } 6330 6331 /** 6332 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6333 * @phba: Pointer to hba context object. 6334 * @buff: Buffer containing the FCoE parameter data structure. 6335 * 6336 * This function update driver data structure with config 6337 * parameters read from config region 23. 6338 */ 6339 static void 6340 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6341 uint8_t *buff) 6342 { 6343 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6344 struct lpfc_fcoe_params *fcoe_param; 6345 6346 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6347 buff; 6348 fcoe_param = (struct lpfc_fcoe_params *) 6349 (buff + sizeof(struct lpfc_fip_param_hdr)); 6350 6351 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6352 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6353 return; 6354 6355 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6356 phba->valid_vlan = 1; 6357 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6358 0xFFF; 6359 } 6360 6361 phba->fc_map[0] = fcoe_param->fc_map[0]; 6362 phba->fc_map[1] = fcoe_param->fc_map[1]; 6363 phba->fc_map[2] = fcoe_param->fc_map[2]; 6364 return; 6365 } 6366 6367 /** 6368 * lpfc_get_rec_conf23 - Get a record type in config region data. 6369 * @buff: Buffer containing config region 23 data. 6370 * @size: Size of the data buffer. 6371 * @rec_type: Record type to be searched. 6372 * 6373 * This function searches config region data to find the beginning 6374 * of the record specified by record_type. If record found, this 6375 * function return pointer to the record else return NULL. 6376 */ 6377 static uint8_t * 6378 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6379 { 6380 uint32_t offset = 0, rec_length; 6381 6382 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6383 (size < sizeof(uint32_t))) 6384 return NULL; 6385 6386 rec_length = buff[offset + 1]; 6387 6388 /* 6389 * One TLV record has one word header and number of data words 6390 * specified in the rec_length field of the record header. 6391 */ 6392 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6393 <= size) { 6394 if (buff[offset] == rec_type) 6395 return &buff[offset]; 6396 6397 if (buff[offset] == LPFC_REGION23_LAST_REC) 6398 return NULL; 6399 6400 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6401 rec_length = buff[offset + 1]; 6402 } 6403 return NULL; 6404 } 6405 6406 /** 6407 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6408 * @phba: Pointer to lpfc_hba data structure. 6409 * @buff: Buffer containing config region 23 data. 6410 * @size: Size of the data buffer. 6411 * 6412 * This function parses the FCoE config parameters in config region 23 and 6413 * populate driver data structure with the parameters. 6414 */ 6415 void 6416 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6417 uint8_t *buff, 6418 uint32_t size) 6419 { 6420 uint32_t offset = 0; 6421 uint8_t *rec_ptr; 6422 6423 /* 6424 * If data size is less than 2 words signature and version cannot be 6425 * verified. 6426 */ 6427 if (size < 2*sizeof(uint32_t)) 6428 return; 6429 6430 /* Check the region signature first */ 6431 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6433 "2567 Config region 23 has bad signature\n"); 6434 return; 6435 } 6436 6437 offset += 4; 6438 6439 /* Check the data structure version */ 6440 if (buff[offset] != LPFC_REGION23_VERSION) { 6441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6442 "2568 Config region 23 has bad version\n"); 6443 return; 6444 } 6445 offset += 4; 6446 6447 /* Read FCoE param record */ 6448 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6449 size - offset, FCOE_PARAM_TYPE); 6450 if (rec_ptr) 6451 lpfc_read_fcoe_param(phba, rec_ptr); 6452 6453 /* Read FCF connection table */ 6454 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6455 size - offset, FCOE_CONN_TBL_TYPE); 6456 if (rec_ptr) 6457 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6458 6459 } 6460