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