1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2012 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 put_device(&rport->dev); 154 return; 155 } 156 } 157 158 evtp = &ndlp->dev_loss_evt; 159 160 if (!list_empty(&evtp->evt_listp)) 161 return; 162 163 spin_lock_irq(&phba->hbalock); 164 /* We need to hold the node by incrementing the reference 165 * count until this queued work is done 166 */ 167 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 168 if (evtp->evt_arg1) { 169 evtp->evt = LPFC_EVT_DEV_LOSS; 170 list_add_tail(&evtp->evt_listp, &phba->work_list); 171 lpfc_worker_wake_up(phba); 172 } 173 spin_unlock_irq(&phba->hbalock); 174 175 return; 176 } 177 178 /** 179 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 180 * @ndlp: Pointer to remote node object. 181 * 182 * This function is called from the worker thread when devloss timeout timer 183 * expires. For SLI4 host, this routine shall return 1 when at lease one 184 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 185 * routine shall return 0 when there is no remote node is still in use of FCF 186 * when devloss timeout happened to this @ndlp. 187 **/ 188 static int 189 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 190 { 191 struct lpfc_rport_data *rdata; 192 struct fc_rport *rport; 193 struct lpfc_vport *vport; 194 struct lpfc_hba *phba; 195 uint8_t *name; 196 int put_node; 197 int put_rport; 198 int warn_on = 0; 199 int fcf_inuse = 0; 200 201 rport = ndlp->rport; 202 203 if (!rport) 204 return fcf_inuse; 205 206 rdata = rport->dd_data; 207 name = (uint8_t *) &ndlp->nlp_portname; 208 vport = ndlp->vport; 209 phba = vport->phba; 210 211 if (phba->sli_rev == LPFC_SLI_REV4) 212 fcf_inuse = lpfc_fcf_inuse(phba); 213 214 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 215 "rport devlosstmo:did:x%x type:x%x id:x%x", 216 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 217 218 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 219 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 220 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 221 222 /* Don't defer this if we are in the process of deleting the vport 223 * or unloading the driver. The unload will cleanup the node 224 * appropriately we just need to cleanup the ndlp rport info here. 225 */ 226 if (vport->load_flag & FC_UNLOADING) { 227 if (ndlp->nlp_sid != NLP_NO_SID) { 228 /* flush the target */ 229 lpfc_sli_abort_iocb(vport, 230 &phba->sli.ring[phba->sli.fcp_ring], 231 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 232 } 233 put_node = rdata->pnode != NULL; 234 put_rport = ndlp->rport != NULL; 235 rdata->pnode = NULL; 236 ndlp->rport = NULL; 237 if (put_node) 238 lpfc_nlp_put(ndlp); 239 if (put_rport) 240 put_device(&rport->dev); 241 return fcf_inuse; 242 } 243 244 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 245 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 246 "0284 Devloss timeout Ignored on " 247 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 248 "NPort x%x\n", 249 *name, *(name+1), *(name+2), *(name+3), 250 *(name+4), *(name+5), *(name+6), *(name+7), 251 ndlp->nlp_DID); 252 return fcf_inuse; 253 } 254 255 if (ndlp->nlp_type & NLP_FABRIC) { 256 /* We will clean up these Nodes in linkup */ 257 put_node = rdata->pnode != NULL; 258 put_rport = ndlp->rport != NULL; 259 rdata->pnode = NULL; 260 ndlp->rport = NULL; 261 if (put_node) 262 lpfc_nlp_put(ndlp); 263 if (put_rport) 264 put_device(&rport->dev); 265 return fcf_inuse; 266 } 267 268 if (ndlp->nlp_sid != NLP_NO_SID) { 269 warn_on = 1; 270 /* flush the target */ 271 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 272 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 273 } 274 275 if (warn_on) { 276 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 277 "0203 Devloss timeout on " 278 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 279 "NPort x%06x Data: x%x x%x x%x\n", 280 *name, *(name+1), *(name+2), *(name+3), 281 *(name+4), *(name+5), *(name+6), *(name+7), 282 ndlp->nlp_DID, ndlp->nlp_flag, 283 ndlp->nlp_state, ndlp->nlp_rpi); 284 } else { 285 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 286 "0204 Devloss timeout on " 287 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 288 "NPort x%06x Data: x%x x%x x%x\n", 289 *name, *(name+1), *(name+2), *(name+3), 290 *(name+4), *(name+5), *(name+6), *(name+7), 291 ndlp->nlp_DID, ndlp->nlp_flag, 292 ndlp->nlp_state, ndlp->nlp_rpi); 293 } 294 295 put_node = rdata->pnode != NULL; 296 put_rport = ndlp->rport != NULL; 297 rdata->pnode = NULL; 298 ndlp->rport = NULL; 299 if (put_node) 300 lpfc_nlp_put(ndlp); 301 if (put_rport) 302 put_device(&rport->dev); 303 304 if (!(vport->load_flag & FC_UNLOADING) && 305 !(ndlp->nlp_flag & NLP_DELAY_TMO) && 306 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 307 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 308 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 309 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 310 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 311 312 return fcf_inuse; 313 } 314 315 /** 316 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 317 * @phba: Pointer to hba context object. 318 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 319 * @nlp_did: remote node identifer with devloss timeout. 320 * 321 * This function is called from the worker thread after invoking devloss 322 * timeout handler and releasing the reference count for the ndlp with 323 * which the devloss timeout was handled for SLI4 host. For the devloss 324 * timeout of the last remote node which had been in use of FCF, when this 325 * routine is invoked, it shall be guaranteed that none of the remote are 326 * in-use of FCF. When devloss timeout to the last remote using the FCF, 327 * if the FIP engine is neither in FCF table scan process nor roundrobin 328 * failover process, the in-use FCF shall be unregistered. If the FIP 329 * engine is in FCF discovery process, the devloss timeout state shall 330 * be set for either the FCF table scan process or roundrobin failover 331 * process to unregister the in-use FCF. 332 **/ 333 static void 334 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 335 uint32_t nlp_did) 336 { 337 /* If devloss timeout happened to a remote node when FCF had no 338 * longer been in-use, do nothing. 339 */ 340 if (!fcf_inuse) 341 return; 342 343 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 344 spin_lock_irq(&phba->hbalock); 345 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 346 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 347 spin_unlock_irq(&phba->hbalock); 348 return; 349 } 350 phba->hba_flag |= HBA_DEVLOSS_TMO; 351 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 352 "2847 Last remote node (x%x) using " 353 "FCF devloss tmo\n", nlp_did); 354 } 355 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 356 spin_unlock_irq(&phba->hbalock); 357 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 358 "2868 Devloss tmo to FCF rediscovery " 359 "in progress\n"); 360 return; 361 } 362 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 363 spin_unlock_irq(&phba->hbalock); 364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 365 "2869 Devloss tmo to idle FIP engine, " 366 "unreg in-use FCF and rescan.\n"); 367 /* Unregister in-use FCF and rescan */ 368 lpfc_unregister_fcf_rescan(phba); 369 return; 370 } 371 spin_unlock_irq(&phba->hbalock); 372 if (phba->hba_flag & FCF_TS_INPROG) 373 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 374 "2870 FCF table scan in progress\n"); 375 if (phba->hba_flag & FCF_RR_INPROG) 376 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 377 "2871 FLOGI roundrobin FCF failover " 378 "in progress\n"); 379 } 380 lpfc_unregister_unused_fcf(phba); 381 } 382 383 /** 384 * lpfc_alloc_fast_evt - Allocates data structure for posting event 385 * @phba: Pointer to hba context object. 386 * 387 * This function is called from the functions which need to post 388 * events from interrupt context. This function allocates data 389 * structure required for posting event. It also keeps track of 390 * number of events pending and prevent event storm when there are 391 * too many events. 392 **/ 393 struct lpfc_fast_path_event * 394 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 395 struct lpfc_fast_path_event *ret; 396 397 /* If there are lot of fast event do not exhaust memory due to this */ 398 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 399 return NULL; 400 401 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 402 GFP_ATOMIC); 403 if (ret) { 404 atomic_inc(&phba->fast_event_count); 405 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 406 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 407 } 408 return ret; 409 } 410 411 /** 412 * lpfc_free_fast_evt - Frees event data structure 413 * @phba: Pointer to hba context object. 414 * @evt: Event object which need to be freed. 415 * 416 * This function frees the data structure required for posting 417 * events. 418 **/ 419 void 420 lpfc_free_fast_evt(struct lpfc_hba *phba, 421 struct lpfc_fast_path_event *evt) { 422 423 atomic_dec(&phba->fast_event_count); 424 kfree(evt); 425 } 426 427 /** 428 * lpfc_send_fastpath_evt - Posts events generated from fast path 429 * @phba: Pointer to hba context object. 430 * @evtp: Event data structure. 431 * 432 * This function is called from worker thread, when the interrupt 433 * context need to post an event. This function posts the event 434 * to fc transport netlink interface. 435 **/ 436 static void 437 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 438 struct lpfc_work_evt *evtp) 439 { 440 unsigned long evt_category, evt_sub_category; 441 struct lpfc_fast_path_event *fast_evt_data; 442 char *evt_data; 443 uint32_t evt_data_size; 444 struct Scsi_Host *shost; 445 446 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 447 work_evt); 448 449 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 450 evt_sub_category = (unsigned long) fast_evt_data->un. 451 fabric_evt.subcategory; 452 shost = lpfc_shost_from_vport(fast_evt_data->vport); 453 if (evt_category == FC_REG_FABRIC_EVENT) { 454 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 455 evt_data = (char *) &fast_evt_data->un.read_check_error; 456 evt_data_size = sizeof(fast_evt_data->un. 457 read_check_error); 458 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 459 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 460 evt_data = (char *) &fast_evt_data->un.fabric_evt; 461 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 462 } else { 463 lpfc_free_fast_evt(phba, fast_evt_data); 464 return; 465 } 466 } else if (evt_category == FC_REG_SCSI_EVENT) { 467 switch (evt_sub_category) { 468 case LPFC_EVENT_QFULL: 469 case LPFC_EVENT_DEVBSY: 470 evt_data = (char *) &fast_evt_data->un.scsi_evt; 471 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 472 break; 473 case LPFC_EVENT_CHECK_COND: 474 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 475 evt_data_size = sizeof(fast_evt_data->un. 476 check_cond_evt); 477 break; 478 case LPFC_EVENT_VARQUEDEPTH: 479 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 480 evt_data_size = sizeof(fast_evt_data->un. 481 queue_depth_evt); 482 break; 483 default: 484 lpfc_free_fast_evt(phba, fast_evt_data); 485 return; 486 } 487 } else { 488 lpfc_free_fast_evt(phba, fast_evt_data); 489 return; 490 } 491 492 fc_host_post_vendor_event(shost, 493 fc_get_event_number(), 494 evt_data_size, 495 evt_data, 496 LPFC_NL_VENDOR_ID); 497 498 lpfc_free_fast_evt(phba, fast_evt_data); 499 return; 500 } 501 502 static void 503 lpfc_work_list_done(struct lpfc_hba *phba) 504 { 505 struct lpfc_work_evt *evtp = NULL; 506 struct lpfc_nodelist *ndlp; 507 int free_evt; 508 int fcf_inuse; 509 uint32_t nlp_did; 510 511 spin_lock_irq(&phba->hbalock); 512 while (!list_empty(&phba->work_list)) { 513 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 514 evt_listp); 515 spin_unlock_irq(&phba->hbalock); 516 free_evt = 1; 517 switch (evtp->evt) { 518 case LPFC_EVT_ELS_RETRY: 519 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 520 lpfc_els_retry_delay_handler(ndlp); 521 free_evt = 0; /* evt is part of ndlp */ 522 /* decrement the node reference count held 523 * for this queued work 524 */ 525 lpfc_nlp_put(ndlp); 526 break; 527 case LPFC_EVT_DEV_LOSS: 528 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 529 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 530 free_evt = 0; 531 /* decrement the node reference count held for 532 * this queued work 533 */ 534 nlp_did = ndlp->nlp_DID; 535 lpfc_nlp_put(ndlp); 536 if (phba->sli_rev == LPFC_SLI_REV4) 537 lpfc_sli4_post_dev_loss_tmo_handler(phba, 538 fcf_inuse, 539 nlp_did); 540 break; 541 case LPFC_EVT_ONLINE: 542 if (phba->link_state < LPFC_LINK_DOWN) 543 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 544 else 545 *(int *) (evtp->evt_arg1) = 0; 546 complete((struct completion *)(evtp->evt_arg2)); 547 break; 548 case LPFC_EVT_OFFLINE_PREP: 549 if (phba->link_state >= LPFC_LINK_DOWN) 550 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 551 *(int *)(evtp->evt_arg1) = 0; 552 complete((struct completion *)(evtp->evt_arg2)); 553 break; 554 case LPFC_EVT_OFFLINE: 555 lpfc_offline(phba); 556 lpfc_sli_brdrestart(phba); 557 *(int *)(evtp->evt_arg1) = 558 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 559 lpfc_unblock_mgmt_io(phba); 560 complete((struct completion *)(evtp->evt_arg2)); 561 break; 562 case LPFC_EVT_WARM_START: 563 lpfc_offline(phba); 564 lpfc_reset_barrier(phba); 565 lpfc_sli_brdreset(phba); 566 lpfc_hba_down_post(phba); 567 *(int *)(evtp->evt_arg1) = 568 lpfc_sli_brdready(phba, HS_MBRDY); 569 lpfc_unblock_mgmt_io(phba); 570 complete((struct completion *)(evtp->evt_arg2)); 571 break; 572 case LPFC_EVT_KILL: 573 lpfc_offline(phba); 574 *(int *)(evtp->evt_arg1) 575 = (phba->pport->stopped) 576 ? 0 : lpfc_sli_brdkill(phba); 577 lpfc_unblock_mgmt_io(phba); 578 complete((struct completion *)(evtp->evt_arg2)); 579 break; 580 case LPFC_EVT_FASTPATH_MGMT_EVT: 581 lpfc_send_fastpath_evt(phba, evtp); 582 free_evt = 0; 583 break; 584 case LPFC_EVT_RESET_HBA: 585 if (!(phba->pport->load_flag & FC_UNLOADING)) 586 lpfc_reset_hba(phba); 587 break; 588 } 589 if (free_evt) 590 kfree(evtp); 591 spin_lock_irq(&phba->hbalock); 592 } 593 spin_unlock_irq(&phba->hbalock); 594 595 } 596 597 static void 598 lpfc_work_done(struct lpfc_hba *phba) 599 { 600 struct lpfc_sli_ring *pring; 601 uint32_t ha_copy, status, control, work_port_events; 602 struct lpfc_vport **vports; 603 struct lpfc_vport *vport; 604 int i; 605 606 spin_lock_irq(&phba->hbalock); 607 ha_copy = phba->work_ha; 608 phba->work_ha = 0; 609 spin_unlock_irq(&phba->hbalock); 610 611 /* First, try to post the next mailbox command to SLI4 device */ 612 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 613 lpfc_sli4_post_async_mbox(phba); 614 615 if (ha_copy & HA_ERATT) 616 /* Handle the error attention event */ 617 lpfc_handle_eratt(phba); 618 619 if (ha_copy & HA_MBATT) 620 lpfc_sli_handle_mb_event(phba); 621 622 if (ha_copy & HA_LATT) 623 lpfc_handle_latt(phba); 624 625 /* Process SLI4 events */ 626 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 627 if (phba->hba_flag & HBA_RRQ_ACTIVE) 628 lpfc_handle_rrq_active(phba); 629 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 630 lpfc_sli4_fcp_xri_abort_event_proc(phba); 631 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 632 lpfc_sli4_els_xri_abort_event_proc(phba); 633 if (phba->hba_flag & ASYNC_EVENT) 634 lpfc_sli4_async_event_proc(phba); 635 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 636 spin_lock_irq(&phba->hbalock); 637 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 638 spin_unlock_irq(&phba->hbalock); 639 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 640 } 641 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 642 lpfc_sli4_fcf_redisc_event_proc(phba); 643 } 644 645 vports = lpfc_create_vport_work_array(phba); 646 if (vports != NULL) 647 for (i = 0; i <= phba->max_vports; i++) { 648 /* 649 * We could have no vports in array if unloading, so if 650 * this happens then just use the pport 651 */ 652 if (vports[i] == NULL && i == 0) 653 vport = phba->pport; 654 else 655 vport = vports[i]; 656 if (vport == NULL) 657 break; 658 spin_lock_irq(&vport->work_port_lock); 659 work_port_events = vport->work_port_events; 660 vport->work_port_events &= ~work_port_events; 661 spin_unlock_irq(&vport->work_port_lock); 662 if (work_port_events & WORKER_DISC_TMO) 663 lpfc_disc_timeout_handler(vport); 664 if (work_port_events & WORKER_ELS_TMO) 665 lpfc_els_timeout_handler(vport); 666 if (work_port_events & WORKER_HB_TMO) 667 lpfc_hb_timeout_handler(phba); 668 if (work_port_events & WORKER_MBOX_TMO) 669 lpfc_mbox_timeout_handler(phba); 670 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 671 lpfc_unblock_fabric_iocbs(phba); 672 if (work_port_events & WORKER_FDMI_TMO) 673 lpfc_fdmi_timeout_handler(vport); 674 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 675 lpfc_ramp_down_queue_handler(phba); 676 if (work_port_events & WORKER_RAMP_UP_QUEUE) 677 lpfc_ramp_up_queue_handler(phba); 678 if (work_port_events & WORKER_DELAYED_DISC_TMO) 679 lpfc_delayed_disc_timeout_handler(vport); 680 } 681 lpfc_destroy_vport_work_array(phba, vports); 682 683 pring = &phba->sli.ring[LPFC_ELS_RING]; 684 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 685 status >>= (4*LPFC_ELS_RING); 686 if ((status & HA_RXMASK) || 687 (pring->flag & LPFC_DEFERRED_RING_EVENT) || 688 (phba->hba_flag & HBA_SP_QUEUE_EVT)) { 689 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 690 pring->flag |= LPFC_DEFERRED_RING_EVENT; 691 /* Set the lpfc data pending flag */ 692 set_bit(LPFC_DATA_READY, &phba->data_flags); 693 } else { 694 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 695 lpfc_sli_handle_slow_ring_event(phba, pring, 696 (status & 697 HA_RXMASK)); 698 } 699 if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt) 700 lpfc_drain_txq(phba); 701 /* 702 * Turn on Ring interrupts 703 */ 704 if (phba->sli_rev <= LPFC_SLI_REV3) { 705 spin_lock_irq(&phba->hbalock); 706 control = readl(phba->HCregaddr); 707 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 708 lpfc_debugfs_slow_ring_trc(phba, 709 "WRK Enable ring: cntl:x%x hacopy:x%x", 710 control, ha_copy, 0); 711 712 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 713 writel(control, phba->HCregaddr); 714 readl(phba->HCregaddr); /* flush */ 715 } else { 716 lpfc_debugfs_slow_ring_trc(phba, 717 "WRK Ring ok: cntl:x%x hacopy:x%x", 718 control, ha_copy, 0); 719 } 720 spin_unlock_irq(&phba->hbalock); 721 } 722 } 723 lpfc_work_list_done(phba); 724 } 725 726 int 727 lpfc_do_work(void *p) 728 { 729 struct lpfc_hba *phba = p; 730 int rc; 731 732 set_user_nice(current, -20); 733 current->flags |= PF_NOFREEZE; 734 phba->data_flags = 0; 735 736 while (!kthread_should_stop()) { 737 /* wait and check worker queue activities */ 738 rc = wait_event_interruptible(phba->work_waitq, 739 (test_and_clear_bit(LPFC_DATA_READY, 740 &phba->data_flags) 741 || kthread_should_stop())); 742 /* Signal wakeup shall terminate the worker thread */ 743 if (rc) { 744 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 745 "0433 Wakeup on signal: rc=x%x\n", rc); 746 break; 747 } 748 749 /* Attend pending lpfc data processing */ 750 lpfc_work_done(phba); 751 } 752 phba->worker_thread = NULL; 753 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 754 "0432 Worker thread stopped.\n"); 755 return 0; 756 } 757 758 /* 759 * This is only called to handle FC worker events. Since this a rare 760 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 761 * embedding it in the IOCB. 762 */ 763 int 764 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 765 uint32_t evt) 766 { 767 struct lpfc_work_evt *evtp; 768 unsigned long flags; 769 770 /* 771 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 772 * be queued to worker thread for processing 773 */ 774 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 775 if (!evtp) 776 return 0; 777 778 evtp->evt_arg1 = arg1; 779 evtp->evt_arg2 = arg2; 780 evtp->evt = evt; 781 782 spin_lock_irqsave(&phba->hbalock, flags); 783 list_add_tail(&evtp->evt_listp, &phba->work_list); 784 spin_unlock_irqrestore(&phba->hbalock, flags); 785 786 lpfc_worker_wake_up(phba); 787 788 return 1; 789 } 790 791 void 792 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 793 { 794 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 795 struct lpfc_hba *phba = vport->phba; 796 struct lpfc_nodelist *ndlp, *next_ndlp; 797 int rc; 798 799 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 800 if (!NLP_CHK_NODE_ACT(ndlp)) 801 continue; 802 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 803 continue; 804 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 805 ((vport->port_type == LPFC_NPIV_PORT) && 806 (ndlp->nlp_DID == NameServer_DID))) 807 lpfc_unreg_rpi(vport, ndlp); 808 809 /* Leave Fabric nodes alone on link down */ 810 if ((phba->sli_rev < LPFC_SLI_REV4) && 811 (!remove && ndlp->nlp_type & NLP_FABRIC)) 812 continue; 813 rc = lpfc_disc_state_machine(vport, ndlp, NULL, 814 remove 815 ? NLP_EVT_DEVICE_RM 816 : NLP_EVT_DEVICE_RECOVERY); 817 } 818 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 819 if (phba->sli_rev == LPFC_SLI_REV4) 820 lpfc_sli4_unreg_all_rpis(vport); 821 lpfc_mbx_unreg_vpi(vport); 822 spin_lock_irq(shost->host_lock); 823 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 824 spin_unlock_irq(shost->host_lock); 825 } 826 } 827 828 void 829 lpfc_port_link_failure(struct lpfc_vport *vport) 830 { 831 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 832 833 /* Cleanup any outstanding received buffers */ 834 lpfc_cleanup_rcv_buffers(vport); 835 836 /* Cleanup any outstanding RSCN activity */ 837 lpfc_els_flush_rscn(vport); 838 839 /* Cleanup any outstanding ELS commands */ 840 lpfc_els_flush_cmd(vport); 841 842 lpfc_cleanup_rpis(vport, 0); 843 844 /* Turn off discovery timer if its running */ 845 lpfc_can_disctmo(vport); 846 } 847 848 void 849 lpfc_linkdown_port(struct lpfc_vport *vport) 850 { 851 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 852 853 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0); 854 855 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 856 "Link Down: state:x%x rtry:x%x flg:x%x", 857 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 858 859 lpfc_port_link_failure(vport); 860 861 /* Stop delayed Nport discovery */ 862 spin_lock_irq(shost->host_lock); 863 vport->fc_flag &= ~FC_DISC_DELAYED; 864 spin_unlock_irq(shost->host_lock); 865 del_timer_sync(&vport->delayed_disc_tmo); 866 } 867 868 int 869 lpfc_linkdown(struct lpfc_hba *phba) 870 { 871 struct lpfc_vport *vport = phba->pport; 872 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 873 struct lpfc_vport **vports; 874 LPFC_MBOXQ_t *mb; 875 int i; 876 877 if (phba->link_state == LPFC_LINK_DOWN) 878 return 0; 879 880 /* Block all SCSI stack I/Os */ 881 lpfc_scsi_dev_block(phba); 882 883 spin_lock_irq(&phba->hbalock); 884 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 885 spin_unlock_irq(&phba->hbalock); 886 if (phba->link_state > LPFC_LINK_DOWN) { 887 phba->link_state = LPFC_LINK_DOWN; 888 spin_lock_irq(shost->host_lock); 889 phba->pport->fc_flag &= ~FC_LBIT; 890 spin_unlock_irq(shost->host_lock); 891 } 892 vports = lpfc_create_vport_work_array(phba); 893 if (vports != NULL) 894 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 895 /* Issue a LINK DOWN event to all nodes */ 896 lpfc_linkdown_port(vports[i]); 897 } 898 lpfc_destroy_vport_work_array(phba, vports); 899 /* Clean up any firmware default rpi's */ 900 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 901 if (mb) { 902 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 903 mb->vport = vport; 904 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 905 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 906 == MBX_NOT_FINISHED) { 907 mempool_free(mb, phba->mbox_mem_pool); 908 } 909 } 910 911 /* Setup myDID for link up if we are in pt2pt mode */ 912 if (phba->pport->fc_flag & FC_PT2PT) { 913 phba->pport->fc_myDID = 0; 914 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 915 if (mb) { 916 lpfc_config_link(phba, mb); 917 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 918 mb->vport = vport; 919 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 920 == MBX_NOT_FINISHED) { 921 mempool_free(mb, phba->mbox_mem_pool); 922 } 923 } 924 spin_lock_irq(shost->host_lock); 925 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 926 spin_unlock_irq(shost->host_lock); 927 } 928 929 return 0; 930 } 931 932 static void 933 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 934 { 935 struct lpfc_nodelist *ndlp; 936 937 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 938 if (!NLP_CHK_NODE_ACT(ndlp)) 939 continue; 940 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 941 continue; 942 if (ndlp->nlp_type & NLP_FABRIC) { 943 /* On Linkup its safe to clean up the ndlp 944 * from Fabric connections. 945 */ 946 if (ndlp->nlp_DID != Fabric_DID) 947 lpfc_unreg_rpi(vport, ndlp); 948 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 949 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 950 /* Fail outstanding IO now since device is 951 * marked for PLOGI. 952 */ 953 lpfc_unreg_rpi(vport, ndlp); 954 } 955 } 956 } 957 958 static void 959 lpfc_linkup_port(struct lpfc_vport *vport) 960 { 961 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 962 struct lpfc_hba *phba = vport->phba; 963 964 if ((vport->load_flag & FC_UNLOADING) != 0) 965 return; 966 967 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 968 "Link Up: top:x%x speed:x%x flg:x%x", 969 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 970 971 /* If NPIV is not enabled, only bring the physical port up */ 972 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 973 (vport != phba->pport)) 974 return; 975 976 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0); 977 978 spin_lock_irq(shost->host_lock); 979 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 980 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 981 vport->fc_flag |= FC_NDISC_ACTIVE; 982 vport->fc_ns_retry = 0; 983 spin_unlock_irq(shost->host_lock); 984 985 if (vport->fc_flag & FC_LBIT) 986 lpfc_linkup_cleanup_nodes(vport); 987 988 } 989 990 static int 991 lpfc_linkup(struct lpfc_hba *phba) 992 { 993 struct lpfc_vport **vports; 994 int i; 995 996 lpfc_cleanup_wt_rrqs(phba); 997 phba->link_state = LPFC_LINK_UP; 998 999 /* Unblock fabric iocbs if they are blocked */ 1000 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1001 del_timer_sync(&phba->fabric_block_timer); 1002 1003 vports = lpfc_create_vport_work_array(phba); 1004 if (vports != NULL) 1005 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1006 lpfc_linkup_port(vports[i]); 1007 lpfc_destroy_vport_work_array(phba, vports); 1008 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1009 (phba->sli_rev < LPFC_SLI_REV4)) 1010 lpfc_issue_clear_la(phba, phba->pport); 1011 1012 return 0; 1013 } 1014 1015 /* 1016 * This routine handles processing a CLEAR_LA mailbox 1017 * command upon completion. It is setup in the LPFC_MBOXQ 1018 * as the completion routine when the command is 1019 * handed off to the SLI layer. 1020 */ 1021 static void 1022 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1023 { 1024 struct lpfc_vport *vport = pmb->vport; 1025 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1026 struct lpfc_sli *psli = &phba->sli; 1027 MAILBOX_t *mb = &pmb->u.mb; 1028 uint32_t control; 1029 1030 /* Since we don't do discovery right now, turn these off here */ 1031 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1032 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1033 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; 1034 1035 /* Check for error */ 1036 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1037 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1038 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1039 "0320 CLEAR_LA mbxStatus error x%x hba " 1040 "state x%x\n", 1041 mb->mbxStatus, vport->port_state); 1042 phba->link_state = LPFC_HBA_ERROR; 1043 goto out; 1044 } 1045 1046 if (vport->port_type == LPFC_PHYSICAL_PORT) 1047 phba->link_state = LPFC_HBA_READY; 1048 1049 spin_lock_irq(&phba->hbalock); 1050 psli->sli_flag |= LPFC_PROCESS_LA; 1051 control = readl(phba->HCregaddr); 1052 control |= HC_LAINT_ENA; 1053 writel(control, phba->HCregaddr); 1054 readl(phba->HCregaddr); /* flush */ 1055 spin_unlock_irq(&phba->hbalock); 1056 mempool_free(pmb, phba->mbox_mem_pool); 1057 return; 1058 1059 out: 1060 /* Device Discovery completes */ 1061 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1062 "0225 Device Discovery completes\n"); 1063 mempool_free(pmb, phba->mbox_mem_pool); 1064 1065 spin_lock_irq(shost->host_lock); 1066 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1067 spin_unlock_irq(shost->host_lock); 1068 1069 lpfc_can_disctmo(vport); 1070 1071 /* turn on Link Attention interrupts */ 1072 1073 spin_lock_irq(&phba->hbalock); 1074 psli->sli_flag |= LPFC_PROCESS_LA; 1075 control = readl(phba->HCregaddr); 1076 control |= HC_LAINT_ENA; 1077 writel(control, phba->HCregaddr); 1078 readl(phba->HCregaddr); /* flush */ 1079 spin_unlock_irq(&phba->hbalock); 1080 1081 return; 1082 } 1083 1084 1085 static void 1086 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1087 { 1088 struct lpfc_vport *vport = pmb->vport; 1089 1090 if (pmb->u.mb.mbxStatus) 1091 goto out; 1092 1093 mempool_free(pmb, phba->mbox_mem_pool); 1094 1095 /* don't perform discovery for SLI4 loopback diagnostic test */ 1096 if ((phba->sli_rev == LPFC_SLI_REV4) && 1097 !(phba->hba_flag & HBA_FCOE_MODE) && 1098 (phba->link_flag & LS_LOOPBACK_MODE)) 1099 return; 1100 1101 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1102 vport->fc_flag & FC_PUBLIC_LOOP && 1103 !(vport->fc_flag & FC_LBIT)) { 1104 /* Need to wait for FAN - use discovery timer 1105 * for timeout. port_state is identically 1106 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1107 */ 1108 lpfc_set_disctmo(vport); 1109 return; 1110 } 1111 1112 /* Start discovery by sending a FLOGI. port_state is identically 1113 * LPFC_FLOGI while waiting for FLOGI cmpl 1114 */ 1115 if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI) 1116 lpfc_initial_flogi(vport); 1117 return; 1118 1119 out: 1120 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1121 "0306 CONFIG_LINK mbxStatus error x%x " 1122 "HBA state x%x\n", 1123 pmb->u.mb.mbxStatus, vport->port_state); 1124 mempool_free(pmb, phba->mbox_mem_pool); 1125 1126 lpfc_linkdown(phba); 1127 1128 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1129 "0200 CONFIG_LINK bad hba state x%x\n", 1130 vport->port_state); 1131 1132 lpfc_issue_clear_la(phba, vport); 1133 return; 1134 } 1135 1136 /** 1137 * lpfc_sli4_clear_fcf_rr_bmask 1138 * @phba pointer to the struct lpfc_hba for this port. 1139 * This fucnction resets the round robin bit mask and clears the 1140 * fcf priority list. The list deletions are done while holding the 1141 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1142 * from the lpfc_fcf_pri record. 1143 **/ 1144 void 1145 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1146 { 1147 struct lpfc_fcf_pri *fcf_pri; 1148 struct lpfc_fcf_pri *next_fcf_pri; 1149 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1150 spin_lock_irq(&phba->hbalock); 1151 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1152 &phba->fcf.fcf_pri_list, list) { 1153 list_del_init(&fcf_pri->list); 1154 fcf_pri->fcf_rec.flag = 0; 1155 } 1156 spin_unlock_irq(&phba->hbalock); 1157 } 1158 static void 1159 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1160 { 1161 struct lpfc_vport *vport = mboxq->vport; 1162 1163 if (mboxq->u.mb.mbxStatus) { 1164 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1165 "2017 REG_FCFI mbxStatus error x%x " 1166 "HBA state x%x\n", 1167 mboxq->u.mb.mbxStatus, vport->port_state); 1168 goto fail_out; 1169 } 1170 1171 /* Start FCoE discovery by sending a FLOGI. */ 1172 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1173 /* Set the FCFI registered flag */ 1174 spin_lock_irq(&phba->hbalock); 1175 phba->fcf.fcf_flag |= FCF_REGISTERED; 1176 spin_unlock_irq(&phba->hbalock); 1177 1178 /* If there is a pending FCoE event, restart FCF table scan. */ 1179 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1180 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1181 goto fail_out; 1182 1183 /* Mark successful completion of FCF table scan */ 1184 spin_lock_irq(&phba->hbalock); 1185 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1186 phba->hba_flag &= ~FCF_TS_INPROG; 1187 if (vport->port_state != LPFC_FLOGI) { 1188 phba->hba_flag |= FCF_RR_INPROG; 1189 spin_unlock_irq(&phba->hbalock); 1190 lpfc_issue_init_vfi(vport); 1191 goto out; 1192 } 1193 spin_unlock_irq(&phba->hbalock); 1194 goto out; 1195 1196 fail_out: 1197 spin_lock_irq(&phba->hbalock); 1198 phba->hba_flag &= ~FCF_RR_INPROG; 1199 spin_unlock_irq(&phba->hbalock); 1200 out: 1201 mempool_free(mboxq, phba->mbox_mem_pool); 1202 } 1203 1204 /** 1205 * lpfc_fab_name_match - Check if the fcf fabric name match. 1206 * @fab_name: pointer to fabric name. 1207 * @new_fcf_record: pointer to fcf record. 1208 * 1209 * This routine compare the fcf record's fabric name with provided 1210 * fabric name. If the fabric name are identical this function 1211 * returns 1 else return 0. 1212 **/ 1213 static uint32_t 1214 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1215 { 1216 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1217 return 0; 1218 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1219 return 0; 1220 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1221 return 0; 1222 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1223 return 0; 1224 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1225 return 0; 1226 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1227 return 0; 1228 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1229 return 0; 1230 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1231 return 0; 1232 return 1; 1233 } 1234 1235 /** 1236 * lpfc_sw_name_match - Check if the fcf switch name match. 1237 * @fab_name: pointer to fabric name. 1238 * @new_fcf_record: pointer to fcf record. 1239 * 1240 * This routine compare the fcf record's switch name with provided 1241 * switch name. If the switch name are identical this function 1242 * returns 1 else return 0. 1243 **/ 1244 static uint32_t 1245 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1246 { 1247 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1248 return 0; 1249 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1250 return 0; 1251 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1252 return 0; 1253 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1254 return 0; 1255 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1256 return 0; 1257 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1258 return 0; 1259 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1260 return 0; 1261 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1262 return 0; 1263 return 1; 1264 } 1265 1266 /** 1267 * lpfc_mac_addr_match - Check if the fcf mac address match. 1268 * @mac_addr: pointer to mac address. 1269 * @new_fcf_record: pointer to fcf record. 1270 * 1271 * This routine compare the fcf record's mac address with HBA's 1272 * FCF mac address. If the mac addresses are identical this function 1273 * returns 1 else return 0. 1274 **/ 1275 static uint32_t 1276 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1277 { 1278 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1279 return 0; 1280 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1281 return 0; 1282 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1283 return 0; 1284 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1285 return 0; 1286 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1287 return 0; 1288 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1289 return 0; 1290 return 1; 1291 } 1292 1293 static bool 1294 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1295 { 1296 return (curr_vlan_id == new_vlan_id); 1297 } 1298 1299 /** 1300 * lpfc_update_fcf_record - Update driver fcf record 1301 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1302 * @phba: pointer to lpfc hba data structure. 1303 * @fcf_index: Index for the lpfc_fcf_record. 1304 * @new_fcf_record: pointer to hba fcf record. 1305 * 1306 * This routine updates the driver FCF priority record from the new HBA FCF 1307 * record. This routine is called with the host lock held. 1308 **/ 1309 static void 1310 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1311 struct fcf_record *new_fcf_record 1312 ) 1313 { 1314 struct lpfc_fcf_pri *fcf_pri; 1315 1316 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1317 fcf_pri->fcf_rec.fcf_index = fcf_index; 1318 /* FCF record priority */ 1319 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1320 1321 } 1322 1323 /** 1324 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1325 * @fcf: pointer to driver fcf record. 1326 * @new_fcf_record: pointer to fcf record. 1327 * 1328 * This routine copies the FCF information from the FCF 1329 * record to lpfc_hba data structure. 1330 **/ 1331 static void 1332 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1333 struct fcf_record *new_fcf_record) 1334 { 1335 /* Fabric name */ 1336 fcf_rec->fabric_name[0] = 1337 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1338 fcf_rec->fabric_name[1] = 1339 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1340 fcf_rec->fabric_name[2] = 1341 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1342 fcf_rec->fabric_name[3] = 1343 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1344 fcf_rec->fabric_name[4] = 1345 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1346 fcf_rec->fabric_name[5] = 1347 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1348 fcf_rec->fabric_name[6] = 1349 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1350 fcf_rec->fabric_name[7] = 1351 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1352 /* Mac address */ 1353 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1354 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1355 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1356 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1357 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1358 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1359 /* FCF record index */ 1360 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1361 /* FCF record priority */ 1362 fcf_rec->priority = new_fcf_record->fip_priority; 1363 /* Switch name */ 1364 fcf_rec->switch_name[0] = 1365 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1366 fcf_rec->switch_name[1] = 1367 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1368 fcf_rec->switch_name[2] = 1369 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1370 fcf_rec->switch_name[3] = 1371 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1372 fcf_rec->switch_name[4] = 1373 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1374 fcf_rec->switch_name[5] = 1375 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1376 fcf_rec->switch_name[6] = 1377 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1378 fcf_rec->switch_name[7] = 1379 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1380 } 1381 1382 /** 1383 * lpfc_update_fcf_record - Update driver fcf record 1384 * @phba: pointer to lpfc hba data structure. 1385 * @fcf_rec: pointer to driver fcf record. 1386 * @new_fcf_record: pointer to hba fcf record. 1387 * @addr_mode: address mode to be set to the driver fcf record. 1388 * @vlan_id: vlan tag to be set to the driver fcf record. 1389 * @flag: flag bits to be set to the driver fcf record. 1390 * 1391 * This routine updates the driver FCF record from the new HBA FCF record 1392 * together with the address mode, vlan_id, and other informations. This 1393 * routine is called with the host lock held. 1394 **/ 1395 static void 1396 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1397 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1398 uint16_t vlan_id, uint32_t flag) 1399 { 1400 /* Copy the fields from the HBA's FCF record */ 1401 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1402 /* Update other fields of driver FCF record */ 1403 fcf_rec->addr_mode = addr_mode; 1404 fcf_rec->vlan_id = vlan_id; 1405 fcf_rec->flag |= (flag | RECORD_VALID); 1406 __lpfc_update_fcf_record_pri(phba, 1407 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1408 new_fcf_record); 1409 } 1410 1411 /** 1412 * lpfc_register_fcf - Register the FCF with hba. 1413 * @phba: pointer to lpfc hba data structure. 1414 * 1415 * This routine issues a register fcfi mailbox command to register 1416 * the fcf with HBA. 1417 **/ 1418 static void 1419 lpfc_register_fcf(struct lpfc_hba *phba) 1420 { 1421 LPFC_MBOXQ_t *fcf_mbxq; 1422 int rc; 1423 1424 spin_lock_irq(&phba->hbalock); 1425 /* If the FCF is not available do nothing. */ 1426 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1427 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1428 spin_unlock_irq(&phba->hbalock); 1429 return; 1430 } 1431 1432 /* The FCF is already registered, start discovery */ 1433 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1434 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1435 phba->hba_flag &= ~FCF_TS_INPROG; 1436 if (phba->pport->port_state != LPFC_FLOGI) { 1437 phba->hba_flag |= FCF_RR_INPROG; 1438 spin_unlock_irq(&phba->hbalock); 1439 lpfc_initial_flogi(phba->pport); 1440 return; 1441 } 1442 spin_unlock_irq(&phba->hbalock); 1443 return; 1444 } 1445 spin_unlock_irq(&phba->hbalock); 1446 1447 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1448 if (!fcf_mbxq) { 1449 spin_lock_irq(&phba->hbalock); 1450 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1451 spin_unlock_irq(&phba->hbalock); 1452 return; 1453 } 1454 1455 lpfc_reg_fcfi(phba, fcf_mbxq); 1456 fcf_mbxq->vport = phba->pport; 1457 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1458 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1459 if (rc == MBX_NOT_FINISHED) { 1460 spin_lock_irq(&phba->hbalock); 1461 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1462 spin_unlock_irq(&phba->hbalock); 1463 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1464 } 1465 1466 return; 1467 } 1468 1469 /** 1470 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1471 * @phba: pointer to lpfc hba data structure. 1472 * @new_fcf_record: pointer to fcf record. 1473 * @boot_flag: Indicates if this record used by boot bios. 1474 * @addr_mode: The address mode to be used by this FCF 1475 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1476 * 1477 * This routine compare the fcf record with connect list obtained from the 1478 * config region to decide if this FCF can be used for SAN discovery. It returns 1479 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1480 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1481 * is used by boot bios and addr_mode will indicate the addressing mode to be 1482 * used for this FCF when the function returns. 1483 * If the FCF record need to be used with a particular vlan id, the vlan is 1484 * set in the vlan_id on return of the function. If not VLAN tagging need to 1485 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1486 **/ 1487 static int 1488 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1489 struct fcf_record *new_fcf_record, 1490 uint32_t *boot_flag, uint32_t *addr_mode, 1491 uint16_t *vlan_id) 1492 { 1493 struct lpfc_fcf_conn_entry *conn_entry; 1494 int i, j, fcf_vlan_id = 0; 1495 1496 /* Find the lowest VLAN id in the FCF record */ 1497 for (i = 0; i < 512; i++) { 1498 if (new_fcf_record->vlan_bitmap[i]) { 1499 fcf_vlan_id = i * 8; 1500 j = 0; 1501 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1502 j++; 1503 fcf_vlan_id++; 1504 } 1505 break; 1506 } 1507 } 1508 1509 /* FCF not valid/available or solicitation in progress */ 1510 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1511 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1512 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1513 return 0; 1514 1515 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1516 *boot_flag = 0; 1517 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1518 new_fcf_record); 1519 if (phba->valid_vlan) 1520 *vlan_id = phba->vlan_id; 1521 else 1522 *vlan_id = LPFC_FCOE_NULL_VID; 1523 return 1; 1524 } 1525 1526 /* 1527 * If there are no FCF connection table entry, driver connect to all 1528 * FCFs. 1529 */ 1530 if (list_empty(&phba->fcf_conn_rec_list)) { 1531 *boot_flag = 0; 1532 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1533 new_fcf_record); 1534 1535 /* 1536 * When there are no FCF connect entries, use driver's default 1537 * addressing mode - FPMA. 1538 */ 1539 if (*addr_mode & LPFC_FCF_FPMA) 1540 *addr_mode = LPFC_FCF_FPMA; 1541 1542 /* If FCF record report a vlan id use that vlan id */ 1543 if (fcf_vlan_id) 1544 *vlan_id = fcf_vlan_id; 1545 else 1546 *vlan_id = LPFC_FCOE_NULL_VID; 1547 return 1; 1548 } 1549 1550 list_for_each_entry(conn_entry, 1551 &phba->fcf_conn_rec_list, list) { 1552 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1553 continue; 1554 1555 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1556 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1557 new_fcf_record)) 1558 continue; 1559 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1560 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1561 new_fcf_record)) 1562 continue; 1563 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1564 /* 1565 * If the vlan bit map does not have the bit set for the 1566 * vlan id to be used, then it is not a match. 1567 */ 1568 if (!(new_fcf_record->vlan_bitmap 1569 [conn_entry->conn_rec.vlan_tag / 8] & 1570 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1571 continue; 1572 } 1573 1574 /* 1575 * If connection record does not support any addressing mode, 1576 * skip the FCF record. 1577 */ 1578 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1579 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1580 continue; 1581 1582 /* 1583 * Check if the connection record specifies a required 1584 * addressing mode. 1585 */ 1586 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1587 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1588 1589 /* 1590 * If SPMA required but FCF not support this continue. 1591 */ 1592 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1593 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1594 new_fcf_record) & LPFC_FCF_SPMA)) 1595 continue; 1596 1597 /* 1598 * If FPMA required but FCF not support this continue. 1599 */ 1600 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1601 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1602 new_fcf_record) & LPFC_FCF_FPMA)) 1603 continue; 1604 } 1605 1606 /* 1607 * This fcf record matches filtering criteria. 1608 */ 1609 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1610 *boot_flag = 1; 1611 else 1612 *boot_flag = 0; 1613 1614 /* 1615 * If user did not specify any addressing mode, or if the 1616 * preferred addressing mode specified by user is not supported 1617 * by FCF, allow fabric to pick the addressing mode. 1618 */ 1619 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1620 new_fcf_record); 1621 /* 1622 * If the user specified a required address mode, assign that 1623 * address mode 1624 */ 1625 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1626 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1627 *addr_mode = (conn_entry->conn_rec.flags & 1628 FCFCNCT_AM_SPMA) ? 1629 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1630 /* 1631 * If the user specified a preferred address mode, use the 1632 * addr mode only if FCF support the addr_mode. 1633 */ 1634 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1635 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1636 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1637 (*addr_mode & LPFC_FCF_SPMA)) 1638 *addr_mode = LPFC_FCF_SPMA; 1639 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1640 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1641 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1642 (*addr_mode & LPFC_FCF_FPMA)) 1643 *addr_mode = LPFC_FCF_FPMA; 1644 1645 /* If matching connect list has a vlan id, use it */ 1646 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1647 *vlan_id = conn_entry->conn_rec.vlan_tag; 1648 /* 1649 * If no vlan id is specified in connect list, use the vlan id 1650 * in the FCF record 1651 */ 1652 else if (fcf_vlan_id) 1653 *vlan_id = fcf_vlan_id; 1654 else 1655 *vlan_id = LPFC_FCOE_NULL_VID; 1656 1657 return 1; 1658 } 1659 1660 return 0; 1661 } 1662 1663 /** 1664 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1665 * @phba: pointer to lpfc hba data structure. 1666 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1667 * 1668 * This function check if there is any fcoe event pending while driver 1669 * scan FCF entries. If there is any pending event, it will restart the 1670 * FCF saning and return 1 else return 0. 1671 */ 1672 int 1673 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1674 { 1675 /* 1676 * If the Link is up and no FCoE events while in the 1677 * FCF discovery, no need to restart FCF discovery. 1678 */ 1679 if ((phba->link_state >= LPFC_LINK_UP) && 1680 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1681 return 0; 1682 1683 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1684 "2768 Pending link or FCF event during current " 1685 "handling of the previous event: link_state:x%x, " 1686 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1687 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1688 phba->fcoe_eventtag); 1689 1690 spin_lock_irq(&phba->hbalock); 1691 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1692 spin_unlock_irq(&phba->hbalock); 1693 1694 if (phba->link_state >= LPFC_LINK_UP) { 1695 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1696 "2780 Restart FCF table scan due to " 1697 "pending FCF event:evt_tag_at_scan:x%x, " 1698 "evt_tag_current:x%x\n", 1699 phba->fcoe_eventtag_at_fcf_scan, 1700 phba->fcoe_eventtag); 1701 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1702 } else { 1703 /* 1704 * Do not continue FCF discovery and clear FCF_TS_INPROG 1705 * flag 1706 */ 1707 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1708 "2833 Stop FCF discovery process due to link " 1709 "state change (x%x)\n", phba->link_state); 1710 spin_lock_irq(&phba->hbalock); 1711 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1712 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1713 spin_unlock_irq(&phba->hbalock); 1714 } 1715 1716 /* Unregister the currently registered FCF if required */ 1717 if (unreg_fcf) { 1718 spin_lock_irq(&phba->hbalock); 1719 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1720 spin_unlock_irq(&phba->hbalock); 1721 lpfc_sli4_unregister_fcf(phba); 1722 } 1723 return 1; 1724 } 1725 1726 /** 1727 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1728 * @phba: pointer to lpfc hba data structure. 1729 * @fcf_cnt: number of eligible fcf record seen so far. 1730 * 1731 * This function makes an running random selection decision on FCF record to 1732 * use through a sequence of @fcf_cnt eligible FCF records with equal 1733 * probability. To perform integer manunipulation of random numbers with 1734 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1735 * from random32() are taken as the random random number generated. 1736 * 1737 * Returns true when outcome is for the newly read FCF record should be 1738 * chosen; otherwise, return false when outcome is for keeping the previously 1739 * chosen FCF record. 1740 **/ 1741 static bool 1742 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1743 { 1744 uint32_t rand_num; 1745 1746 /* Get 16-bit uniform random number */ 1747 rand_num = (0xFFFF & random32()); 1748 1749 /* Decision with probability 1/fcf_cnt */ 1750 if ((fcf_cnt * rand_num) < 0xFFFF) 1751 return true; 1752 else 1753 return false; 1754 } 1755 1756 /** 1757 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1758 * @phba: pointer to lpfc hba data structure. 1759 * @mboxq: pointer to mailbox object. 1760 * @next_fcf_index: pointer to holder of next fcf index. 1761 * 1762 * This routine parses the non-embedded fcf mailbox command by performing the 1763 * necessarily error checking, non-embedded read FCF record mailbox command 1764 * SGE parsing, and endianness swapping. 1765 * 1766 * Returns the pointer to the new FCF record in the non-embedded mailbox 1767 * command DMA memory if successfully, other NULL. 1768 */ 1769 static struct fcf_record * 1770 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1771 uint16_t *next_fcf_index) 1772 { 1773 void *virt_addr; 1774 dma_addr_t phys_addr; 1775 struct lpfc_mbx_sge sge; 1776 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1777 uint32_t shdr_status, shdr_add_status; 1778 union lpfc_sli4_cfg_shdr *shdr; 1779 struct fcf_record *new_fcf_record; 1780 1781 /* Get the first SGE entry from the non-embedded DMA memory. This 1782 * routine only uses a single SGE. 1783 */ 1784 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1785 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); 1786 if (unlikely(!mboxq->sge_array)) { 1787 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1788 "2524 Failed to get the non-embedded SGE " 1789 "virtual address\n"); 1790 return NULL; 1791 } 1792 virt_addr = mboxq->sge_array->addr[0]; 1793 1794 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1795 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1796 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1797 if (shdr_status || shdr_add_status) { 1798 if (shdr_status == STATUS_FCF_TABLE_EMPTY) 1799 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1800 "2726 READ_FCF_RECORD Indicates empty " 1801 "FCF table.\n"); 1802 else 1803 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1804 "2521 READ_FCF_RECORD mailbox failed " 1805 "with status x%x add_status x%x, " 1806 "mbx\n", shdr_status, shdr_add_status); 1807 return NULL; 1808 } 1809 1810 /* Interpreting the returned information of the FCF record */ 1811 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1812 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1813 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1814 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1815 new_fcf_record = (struct fcf_record *)(virt_addr + 1816 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1817 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1818 offsetof(struct fcf_record, vlan_bitmap)); 1819 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1820 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1821 1822 return new_fcf_record; 1823 } 1824 1825 /** 1826 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1827 * @phba: pointer to lpfc hba data structure. 1828 * @fcf_record: pointer to the fcf record. 1829 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1830 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1831 * 1832 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1833 * enabled. 1834 **/ 1835 static void 1836 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1837 struct fcf_record *fcf_record, 1838 uint16_t vlan_id, 1839 uint16_t next_fcf_index) 1840 { 1841 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1842 "2764 READ_FCF_RECORD:\n" 1843 "\tFCF_Index : x%x\n" 1844 "\tFCF_Avail : x%x\n" 1845 "\tFCF_Valid : x%x\n" 1846 "\tFCF_SOL : x%x\n" 1847 "\tFIP_Priority : x%x\n" 1848 "\tMAC_Provider : x%x\n" 1849 "\tLowest VLANID : x%x\n" 1850 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1851 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1852 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1853 "\tNext_FCF_Index: x%x\n", 1854 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1855 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1856 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1857 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1858 fcf_record->fip_priority, 1859 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1860 vlan_id, 1861 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1862 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1863 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1864 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1865 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1866 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1867 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1868 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1869 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1870 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1871 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1872 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1873 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1874 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1875 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1876 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1877 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1878 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1879 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1880 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1881 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1882 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1883 next_fcf_index); 1884 } 1885 1886 /** 1887 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1888 * @phba: pointer to lpfc hba data structure. 1889 * @fcf_rec: pointer to an existing FCF record. 1890 * @new_fcf_record: pointer to a new FCF record. 1891 * @new_vlan_id: vlan id from the new FCF record. 1892 * 1893 * This function performs matching test of a new FCF record against an existing 1894 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1895 * will not be used as part of the FCF record matching criteria. 1896 * 1897 * Returns true if all the fields matching, otherwise returns false. 1898 */ 1899 static bool 1900 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1901 struct lpfc_fcf_rec *fcf_rec, 1902 struct fcf_record *new_fcf_record, 1903 uint16_t new_vlan_id) 1904 { 1905 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1906 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1907 return false; 1908 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1909 return false; 1910 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1911 return false; 1912 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1913 return false; 1914 if (fcf_rec->priority != new_fcf_record->fip_priority) 1915 return false; 1916 return true; 1917 } 1918 1919 /** 1920 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1921 * @vport: Pointer to vport object. 1922 * @fcf_index: index to next fcf. 1923 * 1924 * This function processing the roundrobin fcf failover to next fcf index. 1925 * When this function is invoked, there will be a current fcf registered 1926 * for flogi. 1927 * Return: 0 for continue retrying flogi on currently registered fcf; 1928 * 1 for stop flogi on currently registered fcf; 1929 */ 1930 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1931 { 1932 struct lpfc_hba *phba = vport->phba; 1933 int rc; 1934 1935 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1936 spin_lock_irq(&phba->hbalock); 1937 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1938 spin_unlock_irq(&phba->hbalock); 1939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1940 "2872 Devloss tmo with no eligible " 1941 "FCF, unregister in-use FCF (x%x) " 1942 "and rescan FCF table\n", 1943 phba->fcf.current_rec.fcf_indx); 1944 lpfc_unregister_fcf_rescan(phba); 1945 goto stop_flogi_current_fcf; 1946 } 1947 /* Mark the end to FLOGI roundrobin failover */ 1948 phba->hba_flag &= ~FCF_RR_INPROG; 1949 /* Allow action to new fcf asynchronous event */ 1950 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1951 spin_unlock_irq(&phba->hbalock); 1952 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1953 "2865 No FCF available, stop roundrobin FCF " 1954 "failover and change port state:x%x/x%x\n", 1955 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1956 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1957 goto stop_flogi_current_fcf; 1958 } else { 1959 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1960 "2794 Try FLOGI roundrobin FCF failover to " 1961 "(x%x)\n", fcf_index); 1962 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1963 if (rc) 1964 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1965 "2761 FLOGI roundrobin FCF failover " 1966 "failed (rc:x%x) to read FCF (x%x)\n", 1967 rc, phba->fcf.current_rec.fcf_indx); 1968 else 1969 goto stop_flogi_current_fcf; 1970 } 1971 return 0; 1972 1973 stop_flogi_current_fcf: 1974 lpfc_can_disctmo(vport); 1975 return 1; 1976 } 1977 1978 /** 1979 * lpfc_sli4_fcf_pri_list_del 1980 * @phba: pointer to lpfc hba data structure. 1981 * @fcf_index the index of the fcf record to delete 1982 * This routine checks the on list flag of the fcf_index to be deleted. 1983 * If it is one the list then it is removed from the list, and the flag 1984 * is cleared. This routine grab the hbalock before removing the fcf 1985 * record from the list. 1986 **/ 1987 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 1988 uint16_t fcf_index) 1989 { 1990 struct lpfc_fcf_pri *new_fcf_pri; 1991 1992 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1993 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1994 "3058 deleting idx x%x pri x%x flg x%x\n", 1995 fcf_index, new_fcf_pri->fcf_rec.priority, 1996 new_fcf_pri->fcf_rec.flag); 1997 spin_lock_irq(&phba->hbalock); 1998 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 1999 if (phba->fcf.current_rec.priority == 2000 new_fcf_pri->fcf_rec.priority) 2001 phba->fcf.eligible_fcf_cnt--; 2002 list_del_init(&new_fcf_pri->list); 2003 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2004 } 2005 spin_unlock_irq(&phba->hbalock); 2006 } 2007 2008 /** 2009 * lpfc_sli4_set_fcf_flogi_fail 2010 * @phba: pointer to lpfc hba data structure. 2011 * @fcf_index the index of the fcf record to update 2012 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2013 * flag so the the round robin slection for the particular priority level 2014 * will try a different fcf record that does not have this bit set. 2015 * If the fcf record is re-read for any reason this flag is cleared brfore 2016 * adding it to the priority list. 2017 **/ 2018 void 2019 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2020 { 2021 struct lpfc_fcf_pri *new_fcf_pri; 2022 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2023 spin_lock_irq(&phba->hbalock); 2024 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2025 spin_unlock_irq(&phba->hbalock); 2026 } 2027 2028 /** 2029 * lpfc_sli4_fcf_pri_list_add 2030 * @phba: pointer to lpfc hba data structure. 2031 * @fcf_index the index of the fcf record to add 2032 * This routine checks the priority of the fcf_index to be added. 2033 * If it is a lower priority than the current head of the fcf_pri list 2034 * then it is added to the list in the right order. 2035 * If it is the same priority as the current head of the list then it 2036 * is added to the head of the list and its bit in the rr_bmask is set. 2037 * If the fcf_index to be added is of a higher priority than the current 2038 * head of the list then the rr_bmask is cleared, its bit is set in the 2039 * rr_bmask and it is added to the head of the list. 2040 * returns: 2041 * 0=success 1=failure 2042 **/ 2043 int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, uint16_t fcf_index, 2044 struct fcf_record *new_fcf_record) 2045 { 2046 uint16_t current_fcf_pri; 2047 uint16_t last_index; 2048 struct lpfc_fcf_pri *fcf_pri; 2049 struct lpfc_fcf_pri *next_fcf_pri; 2050 struct lpfc_fcf_pri *new_fcf_pri; 2051 int ret; 2052 2053 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2054 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2055 "3059 adding idx x%x pri x%x flg x%x\n", 2056 fcf_index, new_fcf_record->fip_priority, 2057 new_fcf_pri->fcf_rec.flag); 2058 spin_lock_irq(&phba->hbalock); 2059 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2060 list_del_init(&new_fcf_pri->list); 2061 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2062 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2063 if (list_empty(&phba->fcf.fcf_pri_list)) { 2064 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2065 ret = lpfc_sli4_fcf_rr_index_set(phba, 2066 new_fcf_pri->fcf_rec.fcf_index); 2067 goto out; 2068 } 2069 2070 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2071 LPFC_SLI4_FCF_TBL_INDX_MAX); 2072 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2073 ret = 0; /* Empty rr list */ 2074 goto out; 2075 } 2076 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2077 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2078 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2079 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2080 memset(phba->fcf.fcf_rr_bmask, 0, 2081 sizeof(*phba->fcf.fcf_rr_bmask)); 2082 /* fcfs_at_this_priority_level = 1; */ 2083 phba->fcf.eligible_fcf_cnt = 1; 2084 } else 2085 /* fcfs_at_this_priority_level++; */ 2086 phba->fcf.eligible_fcf_cnt++; 2087 ret = lpfc_sli4_fcf_rr_index_set(phba, 2088 new_fcf_pri->fcf_rec.fcf_index); 2089 goto out; 2090 } 2091 2092 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2093 &phba->fcf.fcf_pri_list, list) { 2094 if (new_fcf_pri->fcf_rec.priority <= 2095 fcf_pri->fcf_rec.priority) { 2096 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2097 list_add(&new_fcf_pri->list, 2098 &phba->fcf.fcf_pri_list); 2099 else 2100 list_add(&new_fcf_pri->list, 2101 &((struct lpfc_fcf_pri *) 2102 fcf_pri->list.prev)->list); 2103 ret = 0; 2104 goto out; 2105 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2106 || new_fcf_pri->fcf_rec.priority < 2107 next_fcf_pri->fcf_rec.priority) { 2108 list_add(&new_fcf_pri->list, &fcf_pri->list); 2109 ret = 0; 2110 goto out; 2111 } 2112 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2113 continue; 2114 2115 } 2116 ret = 1; 2117 out: 2118 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2119 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2120 spin_unlock_irq(&phba->hbalock); 2121 return ret; 2122 } 2123 2124 /** 2125 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2126 * @phba: pointer to lpfc hba data structure. 2127 * @mboxq: pointer to mailbox object. 2128 * 2129 * This function iterates through all the fcf records available in 2130 * HBA and chooses the optimal FCF record for discovery. After finding 2131 * the FCF for discovery it registers the FCF record and kicks start 2132 * discovery. 2133 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2134 * use an FCF record which matches fabric name and mac address of the 2135 * currently used FCF record. 2136 * If the driver supports only one FCF, it will try to use the FCF record 2137 * used by BOOT_BIOS. 2138 */ 2139 void 2140 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2141 { 2142 struct fcf_record *new_fcf_record; 2143 uint32_t boot_flag, addr_mode; 2144 uint16_t fcf_index, next_fcf_index; 2145 struct lpfc_fcf_rec *fcf_rec = NULL; 2146 uint16_t vlan_id; 2147 uint32_t seed; 2148 bool select_new_fcf; 2149 int rc; 2150 2151 /* If there is pending FCoE event restart FCF table scan */ 2152 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2153 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2154 return; 2155 } 2156 2157 /* Parse the FCF record from the non-embedded mailbox command */ 2158 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2159 &next_fcf_index); 2160 if (!new_fcf_record) { 2161 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2162 "2765 Mailbox command READ_FCF_RECORD " 2163 "failed to retrieve a FCF record.\n"); 2164 /* Let next new FCF event trigger fast failover */ 2165 spin_lock_irq(&phba->hbalock); 2166 phba->hba_flag &= ~FCF_TS_INPROG; 2167 spin_unlock_irq(&phba->hbalock); 2168 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2169 return; 2170 } 2171 2172 /* Check the FCF record against the connection list */ 2173 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2174 &addr_mode, &vlan_id); 2175 2176 /* Log the FCF record information if turned on */ 2177 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2178 next_fcf_index); 2179 2180 /* 2181 * If the fcf record does not match with connect list entries 2182 * read the next entry; otherwise, this is an eligible FCF 2183 * record for roundrobin FCF failover. 2184 */ 2185 if (!rc) { 2186 lpfc_sli4_fcf_pri_list_del(phba, 2187 bf_get(lpfc_fcf_record_fcf_index, 2188 new_fcf_record)); 2189 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2190 "2781 FCF (x%x) failed connection " 2191 "list check: (x%x/x%x/%x)\n", 2192 bf_get(lpfc_fcf_record_fcf_index, 2193 new_fcf_record), 2194 bf_get(lpfc_fcf_record_fcf_avail, 2195 new_fcf_record), 2196 bf_get(lpfc_fcf_record_fcf_valid, 2197 new_fcf_record), 2198 bf_get(lpfc_fcf_record_fcf_sol, 2199 new_fcf_record)); 2200 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2201 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2202 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2203 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2204 phba->fcf.current_rec.fcf_indx) { 2205 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2206 "2862 FCF (x%x) matches property " 2207 "of in-use FCF (x%x)\n", 2208 bf_get(lpfc_fcf_record_fcf_index, 2209 new_fcf_record), 2210 phba->fcf.current_rec.fcf_indx); 2211 goto read_next_fcf; 2212 } 2213 /* 2214 * In case the current in-use FCF record becomes 2215 * invalid/unavailable during FCF discovery that 2216 * was not triggered by fast FCF failover process, 2217 * treat it as fast FCF failover. 2218 */ 2219 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2220 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2221 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2222 "2835 Invalid in-use FCF " 2223 "(x%x), enter FCF failover " 2224 "table scan.\n", 2225 phba->fcf.current_rec.fcf_indx); 2226 spin_lock_irq(&phba->hbalock); 2227 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2228 spin_unlock_irq(&phba->hbalock); 2229 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2230 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2231 LPFC_FCOE_FCF_GET_FIRST); 2232 return; 2233 } 2234 } 2235 goto read_next_fcf; 2236 } else { 2237 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2238 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2239 new_fcf_record); 2240 if (rc) 2241 goto read_next_fcf; 2242 } 2243 2244 /* 2245 * If this is not the first FCF discovery of the HBA, use last 2246 * FCF record for the discovery. The condition that a rescan 2247 * matches the in-use FCF record: fabric name, switch name, mac 2248 * address, and vlan_id. 2249 */ 2250 spin_lock_irq(&phba->hbalock); 2251 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2252 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2253 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2254 new_fcf_record, vlan_id)) { 2255 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2256 phba->fcf.current_rec.fcf_indx) { 2257 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2258 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2259 /* Stop FCF redisc wait timer */ 2260 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2261 phba); 2262 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2263 /* Fast failover, mark completed */ 2264 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2265 spin_unlock_irq(&phba->hbalock); 2266 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2267 "2836 New FCF matches in-use " 2268 "FCF (x%x)\n", 2269 phba->fcf.current_rec.fcf_indx); 2270 goto out; 2271 } else 2272 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2273 "2863 New FCF (x%x) matches " 2274 "property of in-use FCF (x%x)\n", 2275 bf_get(lpfc_fcf_record_fcf_index, 2276 new_fcf_record), 2277 phba->fcf.current_rec.fcf_indx); 2278 } 2279 /* 2280 * Read next FCF record from HBA searching for the matching 2281 * with in-use record only if not during the fast failover 2282 * period. In case of fast failover period, it shall try to 2283 * determine whether the FCF record just read should be the 2284 * next candidate. 2285 */ 2286 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2287 spin_unlock_irq(&phba->hbalock); 2288 goto read_next_fcf; 2289 } 2290 } 2291 /* 2292 * Update on failover FCF record only if it's in FCF fast-failover 2293 * period; otherwise, update on current FCF record. 2294 */ 2295 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2296 fcf_rec = &phba->fcf.failover_rec; 2297 else 2298 fcf_rec = &phba->fcf.current_rec; 2299 2300 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2301 /* 2302 * If the driver FCF record does not have boot flag 2303 * set and new hba fcf record has boot flag set, use 2304 * the new hba fcf record. 2305 */ 2306 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2307 /* Choose this FCF record */ 2308 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2309 "2837 Update current FCF record " 2310 "(x%x) with new FCF record (x%x)\n", 2311 fcf_rec->fcf_indx, 2312 bf_get(lpfc_fcf_record_fcf_index, 2313 new_fcf_record)); 2314 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2315 addr_mode, vlan_id, BOOT_ENABLE); 2316 spin_unlock_irq(&phba->hbalock); 2317 goto read_next_fcf; 2318 } 2319 /* 2320 * If the driver FCF record has boot flag set and the 2321 * new hba FCF record does not have boot flag, read 2322 * the next FCF record. 2323 */ 2324 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2325 spin_unlock_irq(&phba->hbalock); 2326 goto read_next_fcf; 2327 } 2328 /* 2329 * If the new hba FCF record has lower priority value 2330 * than the driver FCF record, use the new record. 2331 */ 2332 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2333 /* Choose the new FCF record with lower priority */ 2334 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2335 "2838 Update current FCF record " 2336 "(x%x) with new FCF record (x%x)\n", 2337 fcf_rec->fcf_indx, 2338 bf_get(lpfc_fcf_record_fcf_index, 2339 new_fcf_record)); 2340 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2341 addr_mode, vlan_id, 0); 2342 /* Reset running random FCF selection count */ 2343 phba->fcf.eligible_fcf_cnt = 1; 2344 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2345 /* Update running random FCF selection count */ 2346 phba->fcf.eligible_fcf_cnt++; 2347 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2348 phba->fcf.eligible_fcf_cnt); 2349 if (select_new_fcf) { 2350 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2351 "2839 Update current FCF record " 2352 "(x%x) with new FCF record (x%x)\n", 2353 fcf_rec->fcf_indx, 2354 bf_get(lpfc_fcf_record_fcf_index, 2355 new_fcf_record)); 2356 /* Choose the new FCF by random selection */ 2357 __lpfc_update_fcf_record(phba, fcf_rec, 2358 new_fcf_record, 2359 addr_mode, vlan_id, 0); 2360 } 2361 } 2362 spin_unlock_irq(&phba->hbalock); 2363 goto read_next_fcf; 2364 } 2365 /* 2366 * This is the first suitable FCF record, choose this record for 2367 * initial best-fit FCF. 2368 */ 2369 if (fcf_rec) { 2370 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2371 "2840 Update initial FCF candidate " 2372 "with FCF (x%x)\n", 2373 bf_get(lpfc_fcf_record_fcf_index, 2374 new_fcf_record)); 2375 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2376 addr_mode, vlan_id, (boot_flag ? 2377 BOOT_ENABLE : 0)); 2378 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2379 /* Setup initial running random FCF selection count */ 2380 phba->fcf.eligible_fcf_cnt = 1; 2381 /* Seeding the random number generator for random selection */ 2382 seed = (uint32_t)(0xFFFFFFFF & jiffies); 2383 srandom32(seed); 2384 } 2385 spin_unlock_irq(&phba->hbalock); 2386 goto read_next_fcf; 2387 2388 read_next_fcf: 2389 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2390 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2391 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2392 /* 2393 * Case of FCF fast failover scan 2394 */ 2395 2396 /* 2397 * It has not found any suitable FCF record, cancel 2398 * FCF scan inprogress, and do nothing 2399 */ 2400 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2401 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2402 "2782 No suitable FCF found: " 2403 "(x%x/x%x)\n", 2404 phba->fcoe_eventtag_at_fcf_scan, 2405 bf_get(lpfc_fcf_record_fcf_index, 2406 new_fcf_record)); 2407 spin_lock_irq(&phba->hbalock); 2408 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2409 phba->hba_flag &= ~FCF_TS_INPROG; 2410 spin_unlock_irq(&phba->hbalock); 2411 /* Unregister in-use FCF and rescan */ 2412 lpfc_printf_log(phba, KERN_INFO, 2413 LOG_FIP, 2414 "2864 On devloss tmo " 2415 "unreg in-use FCF and " 2416 "rescan FCF table\n"); 2417 lpfc_unregister_fcf_rescan(phba); 2418 return; 2419 } 2420 /* 2421 * Let next new FCF event trigger fast failover 2422 */ 2423 phba->hba_flag &= ~FCF_TS_INPROG; 2424 spin_unlock_irq(&phba->hbalock); 2425 return; 2426 } 2427 /* 2428 * It has found a suitable FCF record that is not 2429 * the same as in-use FCF record, unregister the 2430 * in-use FCF record, replace the in-use FCF record 2431 * with the new FCF record, mark FCF fast failover 2432 * completed, and then start register the new FCF 2433 * record. 2434 */ 2435 2436 /* Unregister the current in-use FCF record */ 2437 lpfc_unregister_fcf(phba); 2438 2439 /* Replace in-use record with the new record */ 2440 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2441 "2842 Replace in-use FCF (x%x) " 2442 "with failover FCF (x%x)\n", 2443 phba->fcf.current_rec.fcf_indx, 2444 phba->fcf.failover_rec.fcf_indx); 2445 memcpy(&phba->fcf.current_rec, 2446 &phba->fcf.failover_rec, 2447 sizeof(struct lpfc_fcf_rec)); 2448 /* 2449 * Mark the fast FCF failover rediscovery completed 2450 * and the start of the first round of the roundrobin 2451 * FCF failover. 2452 */ 2453 spin_lock_irq(&phba->hbalock); 2454 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2455 spin_unlock_irq(&phba->hbalock); 2456 /* Register to the new FCF record */ 2457 lpfc_register_fcf(phba); 2458 } else { 2459 /* 2460 * In case of transaction period to fast FCF failover, 2461 * do nothing when search to the end of the FCF table. 2462 */ 2463 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2464 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2465 return; 2466 2467 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2468 phba->fcf.fcf_flag & FCF_IN_USE) { 2469 /* 2470 * In case the current in-use FCF record no 2471 * longer existed during FCF discovery that 2472 * was not triggered by fast FCF failover 2473 * process, treat it as fast FCF failover. 2474 */ 2475 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2476 "2841 In-use FCF record (x%x) " 2477 "not reported, entering fast " 2478 "FCF failover mode scanning.\n", 2479 phba->fcf.current_rec.fcf_indx); 2480 spin_lock_irq(&phba->hbalock); 2481 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2482 spin_unlock_irq(&phba->hbalock); 2483 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2484 LPFC_FCOE_FCF_GET_FIRST); 2485 return; 2486 } 2487 /* Register to the new FCF record */ 2488 lpfc_register_fcf(phba); 2489 } 2490 } else 2491 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2492 return; 2493 2494 out: 2495 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2496 lpfc_register_fcf(phba); 2497 2498 return; 2499 } 2500 2501 /** 2502 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2503 * @phba: pointer to lpfc hba data structure. 2504 * @mboxq: pointer to mailbox object. 2505 * 2506 * This is the callback function for FLOGI failure roundrobin FCF failover 2507 * read FCF record mailbox command from the eligible FCF record bmask for 2508 * performing the failover. If the FCF read back is not valid/available, it 2509 * fails through to retrying FLOGI to the currently registered FCF again. 2510 * Otherwise, if the FCF read back is valid and available, it will set the 2511 * newly read FCF record to the failover FCF record, unregister currently 2512 * registered FCF record, copy the failover FCF record to the current 2513 * FCF record, and then register the current FCF record before proceeding 2514 * to trying FLOGI on the new failover FCF. 2515 */ 2516 void 2517 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2518 { 2519 struct fcf_record *new_fcf_record; 2520 uint32_t boot_flag, addr_mode; 2521 uint16_t next_fcf_index, fcf_index; 2522 uint16_t current_fcf_index; 2523 uint16_t vlan_id; 2524 int rc; 2525 2526 /* If link state is not up, stop the roundrobin failover process */ 2527 if (phba->link_state < LPFC_LINK_UP) { 2528 spin_lock_irq(&phba->hbalock); 2529 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2530 phba->hba_flag &= ~FCF_RR_INPROG; 2531 spin_unlock_irq(&phba->hbalock); 2532 goto out; 2533 } 2534 2535 /* Parse the FCF record from the non-embedded mailbox command */ 2536 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2537 &next_fcf_index); 2538 if (!new_fcf_record) { 2539 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2540 "2766 Mailbox command READ_FCF_RECORD " 2541 "failed to retrieve a FCF record.\n"); 2542 goto error_out; 2543 } 2544 2545 /* Get the needed parameters from FCF record */ 2546 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2547 &addr_mode, &vlan_id); 2548 2549 /* Log the FCF record information if turned on */ 2550 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2551 next_fcf_index); 2552 2553 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2554 if (!rc) { 2555 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2556 "2848 Remove ineligible FCF (x%x) from " 2557 "from roundrobin bmask\n", fcf_index); 2558 /* Clear roundrobin bmask bit for ineligible FCF */ 2559 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2560 /* Perform next round of roundrobin FCF failover */ 2561 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2562 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2563 if (rc) 2564 goto out; 2565 goto error_out; 2566 } 2567 2568 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2569 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2570 "2760 Perform FLOGI roundrobin FCF failover: " 2571 "FCF (x%x) back to FCF (x%x)\n", 2572 phba->fcf.current_rec.fcf_indx, fcf_index); 2573 /* Wait 500 ms before retrying FLOGI to current FCF */ 2574 msleep(500); 2575 lpfc_issue_init_vfi(phba->pport); 2576 goto out; 2577 } 2578 2579 /* Upload new FCF record to the failover FCF record */ 2580 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2581 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2582 phba->fcf.failover_rec.fcf_indx, fcf_index); 2583 spin_lock_irq(&phba->hbalock); 2584 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2585 new_fcf_record, addr_mode, vlan_id, 2586 (boot_flag ? BOOT_ENABLE : 0)); 2587 spin_unlock_irq(&phba->hbalock); 2588 2589 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2590 2591 /* Unregister the current in-use FCF record */ 2592 lpfc_unregister_fcf(phba); 2593 2594 /* Replace in-use record with the new record */ 2595 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2596 sizeof(struct lpfc_fcf_rec)); 2597 2598 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2599 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2600 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2601 2602 error_out: 2603 lpfc_register_fcf(phba); 2604 out: 2605 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2606 } 2607 2608 /** 2609 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2610 * @phba: pointer to lpfc hba data structure. 2611 * @mboxq: pointer to mailbox object. 2612 * 2613 * This is the callback function of read FCF record mailbox command for 2614 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2615 * failover when a new FCF event happened. If the FCF read back is 2616 * valid/available and it passes the connection list check, it updates 2617 * the bmask for the eligible FCF record for roundrobin failover. 2618 */ 2619 void 2620 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2621 { 2622 struct fcf_record *new_fcf_record; 2623 uint32_t boot_flag, addr_mode; 2624 uint16_t fcf_index, next_fcf_index; 2625 uint16_t vlan_id; 2626 int rc; 2627 2628 /* If link state is not up, no need to proceed */ 2629 if (phba->link_state < LPFC_LINK_UP) 2630 goto out; 2631 2632 /* If FCF discovery period is over, no need to proceed */ 2633 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2634 goto out; 2635 2636 /* Parse the FCF record from the non-embedded mailbox command */ 2637 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2638 &next_fcf_index); 2639 if (!new_fcf_record) { 2640 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2641 "2767 Mailbox command READ_FCF_RECORD " 2642 "failed to retrieve a FCF record.\n"); 2643 goto out; 2644 } 2645 2646 /* Check the connection list for eligibility */ 2647 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2648 &addr_mode, &vlan_id); 2649 2650 /* Log the FCF record information if turned on */ 2651 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2652 next_fcf_index); 2653 2654 if (!rc) 2655 goto out; 2656 2657 /* Update the eligible FCF record index bmask */ 2658 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2659 2660 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2661 2662 out: 2663 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2664 } 2665 2666 /** 2667 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2668 * @phba: pointer to lpfc hba data structure. 2669 * @mboxq: pointer to mailbox data structure. 2670 * 2671 * This function handles completion of init vfi mailbox command. 2672 */ 2673 void 2674 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2675 { 2676 struct lpfc_vport *vport = mboxq->vport; 2677 2678 /* 2679 * VFI not supported on interface type 0, just do the flogi 2680 * Also continue if the VFI is in use - just use the same one. 2681 */ 2682 if (mboxq->u.mb.mbxStatus && 2683 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2684 LPFC_SLI_INTF_IF_TYPE_0) && 2685 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2686 lpfc_printf_vlog(vport, KERN_ERR, 2687 LOG_MBOX, 2688 "2891 Init VFI mailbox failed 0x%x\n", 2689 mboxq->u.mb.mbxStatus); 2690 mempool_free(mboxq, phba->mbox_mem_pool); 2691 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2692 return; 2693 } 2694 2695 lpfc_initial_flogi(vport); 2696 mempool_free(mboxq, phba->mbox_mem_pool); 2697 return; 2698 } 2699 2700 /** 2701 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2702 * @vport: pointer to lpfc_vport data structure. 2703 * 2704 * This function issue a init_vfi mailbox command to initialize the VFI and 2705 * VPI for the physical port. 2706 */ 2707 void 2708 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2709 { 2710 LPFC_MBOXQ_t *mboxq; 2711 int rc; 2712 struct lpfc_hba *phba = vport->phba; 2713 2714 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2715 if (!mboxq) { 2716 lpfc_printf_vlog(vport, KERN_ERR, 2717 LOG_MBOX, "2892 Failed to allocate " 2718 "init_vfi mailbox\n"); 2719 return; 2720 } 2721 lpfc_init_vfi(mboxq, vport); 2722 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2723 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2724 if (rc == MBX_NOT_FINISHED) { 2725 lpfc_printf_vlog(vport, KERN_ERR, 2726 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2727 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2728 } 2729 } 2730 2731 /** 2732 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2733 * @phba: pointer to lpfc hba data structure. 2734 * @mboxq: pointer to mailbox data structure. 2735 * 2736 * This function handles completion of init vpi mailbox command. 2737 */ 2738 void 2739 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2740 { 2741 struct lpfc_vport *vport = mboxq->vport; 2742 struct lpfc_nodelist *ndlp; 2743 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2744 2745 if (mboxq->u.mb.mbxStatus) { 2746 lpfc_printf_vlog(vport, KERN_ERR, 2747 LOG_MBOX, 2748 "2609 Init VPI mailbox failed 0x%x\n", 2749 mboxq->u.mb.mbxStatus); 2750 mempool_free(mboxq, phba->mbox_mem_pool); 2751 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2752 return; 2753 } 2754 spin_lock_irq(shost->host_lock); 2755 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2756 spin_unlock_irq(shost->host_lock); 2757 2758 /* If this port is physical port or FDISC is done, do reg_vpi */ 2759 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2760 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2761 if (!ndlp) 2762 lpfc_printf_vlog(vport, KERN_ERR, 2763 LOG_DISCOVERY, 2764 "2731 Cannot find fabric " 2765 "controller node\n"); 2766 else 2767 lpfc_register_new_vport(phba, vport, ndlp); 2768 mempool_free(mboxq, phba->mbox_mem_pool); 2769 return; 2770 } 2771 2772 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2773 lpfc_initial_fdisc(vport); 2774 else { 2775 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2776 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2777 "2606 No NPIV Fabric support\n"); 2778 } 2779 mempool_free(mboxq, phba->mbox_mem_pool); 2780 return; 2781 } 2782 2783 /** 2784 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2785 * @vport: pointer to lpfc_vport data structure. 2786 * 2787 * This function issue a init_vpi mailbox command to initialize 2788 * VPI for the vport. 2789 */ 2790 void 2791 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2792 { 2793 LPFC_MBOXQ_t *mboxq; 2794 int rc; 2795 2796 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2797 if (!mboxq) { 2798 lpfc_printf_vlog(vport, KERN_ERR, 2799 LOG_MBOX, "2607 Failed to allocate " 2800 "init_vpi mailbox\n"); 2801 return; 2802 } 2803 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2804 mboxq->vport = vport; 2805 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2806 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2807 if (rc == MBX_NOT_FINISHED) { 2808 lpfc_printf_vlog(vport, KERN_ERR, 2809 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2810 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2811 } 2812 } 2813 2814 /** 2815 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2816 * @phba: pointer to lpfc hba data structure. 2817 * 2818 * This function loops through the list of vports on the @phba and issues an 2819 * FDISC if possible. 2820 */ 2821 void 2822 lpfc_start_fdiscs(struct lpfc_hba *phba) 2823 { 2824 struct lpfc_vport **vports; 2825 int i; 2826 2827 vports = lpfc_create_vport_work_array(phba); 2828 if (vports != NULL) { 2829 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2830 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2831 continue; 2832 /* There are no vpi for this vport */ 2833 if (vports[i]->vpi > phba->max_vpi) { 2834 lpfc_vport_set_state(vports[i], 2835 FC_VPORT_FAILED); 2836 continue; 2837 } 2838 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2839 lpfc_vport_set_state(vports[i], 2840 FC_VPORT_LINKDOWN); 2841 continue; 2842 } 2843 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2844 lpfc_issue_init_vpi(vports[i]); 2845 continue; 2846 } 2847 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2848 lpfc_initial_fdisc(vports[i]); 2849 else { 2850 lpfc_vport_set_state(vports[i], 2851 FC_VPORT_NO_FABRIC_SUPP); 2852 lpfc_printf_vlog(vports[i], KERN_ERR, 2853 LOG_ELS, 2854 "0259 No NPIV " 2855 "Fabric support\n"); 2856 } 2857 } 2858 } 2859 lpfc_destroy_vport_work_array(phba, vports); 2860 } 2861 2862 void 2863 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2864 { 2865 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2866 struct lpfc_vport *vport = mboxq->vport; 2867 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2868 2869 /* 2870 * VFI not supported for interface type 0, so ignore any mailbox 2871 * error (except VFI in use) and continue with the discovery. 2872 */ 2873 if (mboxq->u.mb.mbxStatus && 2874 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2875 LPFC_SLI_INTF_IF_TYPE_0) && 2876 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2877 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2878 "2018 REG_VFI mbxStatus error x%x " 2879 "HBA state x%x\n", 2880 mboxq->u.mb.mbxStatus, vport->port_state); 2881 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2882 /* FLOGI failed, use loop map to make discovery list */ 2883 lpfc_disc_list_loopmap(vport); 2884 /* Start discovery */ 2885 lpfc_disc_start(vport); 2886 goto out_free_mem; 2887 } 2888 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2889 goto out_free_mem; 2890 } 2891 /* The VPI is implicitly registered when the VFI is registered */ 2892 spin_lock_irq(shost->host_lock); 2893 vport->vpi_state |= LPFC_VPI_REGISTERED; 2894 vport->fc_flag |= FC_VFI_REGISTERED; 2895 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2896 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2897 spin_unlock_irq(shost->host_lock); 2898 2899 /* In case SLI4 FC loopback test, we are ready */ 2900 if ((phba->sli_rev == LPFC_SLI_REV4) && 2901 (phba->link_flag & LS_LOOPBACK_MODE)) { 2902 phba->link_state = LPFC_HBA_READY; 2903 goto out_free_mem; 2904 } 2905 2906 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2907 /* 2908 * For private loop or for NPort pt2pt, 2909 * just start discovery and we are done. 2910 */ 2911 if ((vport->fc_flag & FC_PT2PT) || 2912 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2913 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2914 2915 /* Use loop map to make discovery list */ 2916 lpfc_disc_list_loopmap(vport); 2917 /* Start discovery */ 2918 lpfc_disc_start(vport); 2919 } else { 2920 lpfc_start_fdiscs(phba); 2921 lpfc_do_scr_ns_plogi(phba, vport); 2922 } 2923 } 2924 2925 out_free_mem: 2926 mempool_free(mboxq, phba->mbox_mem_pool); 2927 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2928 kfree(dmabuf); 2929 return; 2930 } 2931 2932 static void 2933 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2934 { 2935 MAILBOX_t *mb = &pmb->u.mb; 2936 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 2937 struct lpfc_vport *vport = pmb->vport; 2938 2939 2940 /* Check for error */ 2941 if (mb->mbxStatus) { 2942 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 2943 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2944 "0319 READ_SPARAM mbxStatus error x%x " 2945 "hba state x%x>\n", 2946 mb->mbxStatus, vport->port_state); 2947 lpfc_linkdown(phba); 2948 goto out; 2949 } 2950 2951 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 2952 sizeof (struct serv_parm)); 2953 lpfc_update_vport_wwn(vport); 2954 if (vport->port_type == LPFC_PHYSICAL_PORT) { 2955 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 2956 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 2957 } 2958 2959 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2960 kfree(mp); 2961 mempool_free(pmb, phba->mbox_mem_pool); 2962 return; 2963 2964 out: 2965 pmb->context1 = NULL; 2966 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2967 kfree(mp); 2968 lpfc_issue_clear_la(phba, vport); 2969 mempool_free(pmb, phba->mbox_mem_pool); 2970 return; 2971 } 2972 2973 static void 2974 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 2975 { 2976 struct lpfc_vport *vport = phba->pport; 2977 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 2978 struct Scsi_Host *shost; 2979 int i; 2980 struct lpfc_dmabuf *mp; 2981 int rc; 2982 struct fcf_record *fcf_record; 2983 2984 spin_lock_irq(&phba->hbalock); 2985 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 2986 case LPFC_LINK_SPEED_1GHZ: 2987 case LPFC_LINK_SPEED_2GHZ: 2988 case LPFC_LINK_SPEED_4GHZ: 2989 case LPFC_LINK_SPEED_8GHZ: 2990 case LPFC_LINK_SPEED_10GHZ: 2991 case LPFC_LINK_SPEED_16GHZ: 2992 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 2993 break; 2994 default: 2995 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 2996 break; 2997 } 2998 2999 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3000 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3001 3002 shost = lpfc_shost_from_vport(vport); 3003 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3004 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3005 3006 /* if npiv is enabled and this adapter supports npiv log 3007 * a message that npiv is not supported in this topology 3008 */ 3009 if (phba->cfg_enable_npiv && phba->max_vpi) 3010 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3011 "1309 Link Up Event npiv not supported in loop " 3012 "topology\n"); 3013 /* Get Loop Map information */ 3014 if (bf_get(lpfc_mbx_read_top_il, la)) { 3015 spin_lock(shost->host_lock); 3016 vport->fc_flag |= FC_LBIT; 3017 spin_unlock(shost->host_lock); 3018 } 3019 3020 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3021 i = la->lilpBde64.tus.f.bdeSize; 3022 3023 if (i == 0) { 3024 phba->alpa_map[0] = 0; 3025 } else { 3026 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3027 int numalpa, j, k; 3028 union { 3029 uint8_t pamap[16]; 3030 struct { 3031 uint32_t wd1; 3032 uint32_t wd2; 3033 uint32_t wd3; 3034 uint32_t wd4; 3035 } pa; 3036 } un; 3037 numalpa = phba->alpa_map[0]; 3038 j = 0; 3039 while (j < numalpa) { 3040 memset(un.pamap, 0, 16); 3041 for (k = 1; j < numalpa; k++) { 3042 un.pamap[k - 1] = 3043 phba->alpa_map[j + 1]; 3044 j++; 3045 if (k == 16) 3046 break; 3047 } 3048 /* Link Up Event ALPA map */ 3049 lpfc_printf_log(phba, 3050 KERN_WARNING, 3051 LOG_LINK_EVENT, 3052 "1304 Link Up Event " 3053 "ALPA map Data: x%x " 3054 "x%x x%x x%x\n", 3055 un.pa.wd1, un.pa.wd2, 3056 un.pa.wd3, un.pa.wd4); 3057 } 3058 } 3059 } 3060 } else { 3061 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3062 if (phba->max_vpi && phba->cfg_enable_npiv && 3063 (phba->sli_rev >= LPFC_SLI_REV3)) 3064 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3065 } 3066 vport->fc_myDID = phba->fc_pref_DID; 3067 spin_lock(shost->host_lock); 3068 vport->fc_flag |= FC_LBIT; 3069 spin_unlock(shost->host_lock); 3070 } 3071 spin_unlock_irq(&phba->hbalock); 3072 3073 lpfc_linkup(phba); 3074 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3075 if (!sparam_mbox) 3076 goto out; 3077 3078 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3079 if (rc) { 3080 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3081 goto out; 3082 } 3083 sparam_mbox->vport = vport; 3084 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3085 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3086 if (rc == MBX_NOT_FINISHED) { 3087 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3088 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3089 kfree(mp); 3090 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3091 goto out; 3092 } 3093 3094 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3095 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3096 if (!cfglink_mbox) 3097 goto out; 3098 vport->port_state = LPFC_LOCAL_CFG_LINK; 3099 lpfc_config_link(phba, cfglink_mbox); 3100 cfglink_mbox->vport = vport; 3101 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3102 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3103 if (rc == MBX_NOT_FINISHED) { 3104 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3105 goto out; 3106 } 3107 } else { 3108 vport->port_state = LPFC_VPORT_UNKNOWN; 3109 /* 3110 * Add the driver's default FCF record at FCF index 0 now. This 3111 * is phase 1 implementation that support FCF index 0 and driver 3112 * defaults. 3113 */ 3114 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3115 fcf_record = kzalloc(sizeof(struct fcf_record), 3116 GFP_KERNEL); 3117 if (unlikely(!fcf_record)) { 3118 lpfc_printf_log(phba, KERN_ERR, 3119 LOG_MBOX | LOG_SLI, 3120 "2554 Could not allocate memory for " 3121 "fcf record\n"); 3122 rc = -ENODEV; 3123 goto out; 3124 } 3125 3126 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3127 LPFC_FCOE_FCF_DEF_INDEX); 3128 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3129 if (unlikely(rc)) { 3130 lpfc_printf_log(phba, KERN_ERR, 3131 LOG_MBOX | LOG_SLI, 3132 "2013 Could not manually add FCF " 3133 "record 0, status %d\n", rc); 3134 rc = -ENODEV; 3135 kfree(fcf_record); 3136 goto out; 3137 } 3138 kfree(fcf_record); 3139 } 3140 /* 3141 * The driver is expected to do FIP/FCF. Call the port 3142 * and get the FCF Table. 3143 */ 3144 spin_lock_irq(&phba->hbalock); 3145 if (phba->hba_flag & FCF_TS_INPROG) { 3146 spin_unlock_irq(&phba->hbalock); 3147 return; 3148 } 3149 /* This is the initial FCF discovery scan */ 3150 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3151 spin_unlock_irq(&phba->hbalock); 3152 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3153 "2778 Start FCF table scan at linkup\n"); 3154 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3155 LPFC_FCOE_FCF_GET_FIRST); 3156 if (rc) { 3157 spin_lock_irq(&phba->hbalock); 3158 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3159 spin_unlock_irq(&phba->hbalock); 3160 goto out; 3161 } 3162 /* Reset FCF roundrobin bmask for new discovery */ 3163 lpfc_sli4_clear_fcf_rr_bmask(phba); 3164 } 3165 3166 return; 3167 out: 3168 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3169 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3170 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3171 vport->port_state, sparam_mbox, cfglink_mbox); 3172 lpfc_issue_clear_la(phba, vport); 3173 return; 3174 } 3175 3176 static void 3177 lpfc_enable_la(struct lpfc_hba *phba) 3178 { 3179 uint32_t control; 3180 struct lpfc_sli *psli = &phba->sli; 3181 spin_lock_irq(&phba->hbalock); 3182 psli->sli_flag |= LPFC_PROCESS_LA; 3183 if (phba->sli_rev <= LPFC_SLI_REV3) { 3184 control = readl(phba->HCregaddr); 3185 control |= HC_LAINT_ENA; 3186 writel(control, phba->HCregaddr); 3187 readl(phba->HCregaddr); /* flush */ 3188 } 3189 spin_unlock_irq(&phba->hbalock); 3190 } 3191 3192 static void 3193 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3194 { 3195 lpfc_linkdown(phba); 3196 lpfc_enable_la(phba); 3197 lpfc_unregister_unused_fcf(phba); 3198 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3199 } 3200 3201 3202 /* 3203 * This routine handles processing a READ_TOPOLOGY mailbox 3204 * command upon completion. It is setup in the LPFC_MBOXQ 3205 * as the completion routine when the command is 3206 * handed off to the SLI layer. 3207 */ 3208 void 3209 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3210 { 3211 struct lpfc_vport *vport = pmb->vport; 3212 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3213 struct lpfc_mbx_read_top *la; 3214 MAILBOX_t *mb = &pmb->u.mb; 3215 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3216 3217 /* Unblock ELS traffic */ 3218 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 3219 /* Check for error */ 3220 if (mb->mbxStatus) { 3221 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3222 "1307 READ_LA mbox error x%x state x%x\n", 3223 mb->mbxStatus, vport->port_state); 3224 lpfc_mbx_issue_link_down(phba); 3225 phba->link_state = LPFC_HBA_ERROR; 3226 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3227 } 3228 3229 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3230 3231 memcpy(&phba->alpa_map[0], mp->virt, 128); 3232 3233 spin_lock_irq(shost->host_lock); 3234 if (bf_get(lpfc_mbx_read_top_pb, la)) 3235 vport->fc_flag |= FC_BYPASSED_MODE; 3236 else 3237 vport->fc_flag &= ~FC_BYPASSED_MODE; 3238 spin_unlock_irq(shost->host_lock); 3239 3240 if ((phba->fc_eventTag < la->eventTag) || 3241 (phba->fc_eventTag == la->eventTag)) { 3242 phba->fc_stat.LinkMultiEvent++; 3243 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) 3244 if (phba->fc_eventTag != 0) 3245 lpfc_linkdown(phba); 3246 } 3247 3248 phba->fc_eventTag = la->eventTag; 3249 spin_lock_irq(&phba->hbalock); 3250 if (bf_get(lpfc_mbx_read_top_mm, la)) 3251 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3252 else 3253 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3254 spin_unlock_irq(&phba->hbalock); 3255 3256 phba->link_events++; 3257 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && 3258 (!bf_get(lpfc_mbx_read_top_mm, la))) { 3259 phba->fc_stat.LinkUp++; 3260 if (phba->link_flag & LS_LOOPBACK_MODE) { 3261 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3262 "1306 Link Up Event in loop back mode " 3263 "x%x received Data: x%x x%x x%x x%x\n", 3264 la->eventTag, phba->fc_eventTag, 3265 bf_get(lpfc_mbx_read_top_alpa_granted, 3266 la), 3267 bf_get(lpfc_mbx_read_top_link_spd, la), 3268 phba->alpa_map[0]); 3269 } else { 3270 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3271 "1303 Link Up Event x%x received " 3272 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3273 la->eventTag, phba->fc_eventTag, 3274 bf_get(lpfc_mbx_read_top_alpa_granted, 3275 la), 3276 bf_get(lpfc_mbx_read_top_link_spd, la), 3277 phba->alpa_map[0], 3278 bf_get(lpfc_mbx_read_top_mm, la), 3279 bf_get(lpfc_mbx_read_top_fa, la), 3280 phba->wait_4_mlo_maint_flg); 3281 } 3282 lpfc_mbx_process_link_up(phba, la); 3283 } else if (bf_get(lpfc_mbx_read_top_att_type, la) == 3284 LPFC_ATT_LINK_DOWN) { 3285 phba->fc_stat.LinkDown++; 3286 if (phba->link_flag & LS_LOOPBACK_MODE) 3287 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3288 "1308 Link Down Event in loop back mode " 3289 "x%x received " 3290 "Data: x%x x%x x%x\n", 3291 la->eventTag, phba->fc_eventTag, 3292 phba->pport->port_state, vport->fc_flag); 3293 else 3294 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3295 "1305 Link Down Event x%x received " 3296 "Data: x%x x%x x%x x%x x%x\n", 3297 la->eventTag, phba->fc_eventTag, 3298 phba->pport->port_state, vport->fc_flag, 3299 bf_get(lpfc_mbx_read_top_mm, la), 3300 bf_get(lpfc_mbx_read_top_fa, la)); 3301 lpfc_mbx_issue_link_down(phba); 3302 } 3303 if ((bf_get(lpfc_mbx_read_top_mm, la)) && 3304 (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)) { 3305 if (phba->link_state != LPFC_LINK_DOWN) { 3306 phba->fc_stat.LinkDown++; 3307 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3308 "1312 Link Down Event x%x received " 3309 "Data: x%x x%x x%x\n", 3310 la->eventTag, phba->fc_eventTag, 3311 phba->pport->port_state, vport->fc_flag); 3312 lpfc_mbx_issue_link_down(phba); 3313 } else 3314 lpfc_enable_la(phba); 3315 3316 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3317 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3318 "Data: x%x x%x x%x\n", 3319 la->eventTag, phba->fc_eventTag, 3320 phba->pport->port_state, vport->fc_flag); 3321 /* 3322 * The cmnd that triggered this will be waiting for this 3323 * signal. 3324 */ 3325 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3326 if (phba->wait_4_mlo_maint_flg) { 3327 phba->wait_4_mlo_maint_flg = 0; 3328 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3329 } 3330 } 3331 3332 if (bf_get(lpfc_mbx_read_top_fa, la)) { 3333 if (bf_get(lpfc_mbx_read_top_mm, la)) 3334 lpfc_issue_clear_la(phba, vport); 3335 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3336 "1311 fa %d\n", 3337 bf_get(lpfc_mbx_read_top_fa, la)); 3338 } 3339 3340 lpfc_mbx_cmpl_read_topology_free_mbuf: 3341 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3342 kfree(mp); 3343 mempool_free(pmb, phba->mbox_mem_pool); 3344 return; 3345 } 3346 3347 /* 3348 * This routine handles processing a REG_LOGIN mailbox 3349 * command upon completion. It is setup in the LPFC_MBOXQ 3350 * as the completion routine when the command is 3351 * handed off to the SLI layer. 3352 */ 3353 void 3354 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3355 { 3356 struct lpfc_vport *vport = pmb->vport; 3357 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3358 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3359 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3360 3361 pmb->context1 = NULL; 3362 pmb->context2 = NULL; 3363 3364 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3365 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3366 3367 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3368 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3369 /* We rcvd a rscn after issuing this 3370 * mbox reg login, we may have cycled 3371 * back through the state and be 3372 * back at reg login state so this 3373 * mbox needs to be ignored becase 3374 * there is another reg login in 3375 * process. 3376 */ 3377 spin_lock_irq(shost->host_lock); 3378 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3379 spin_unlock_irq(shost->host_lock); 3380 } else 3381 /* Good status, call state machine */ 3382 lpfc_disc_state_machine(vport, ndlp, pmb, 3383 NLP_EVT_CMPL_REG_LOGIN); 3384 3385 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3386 kfree(mp); 3387 mempool_free(pmb, phba->mbox_mem_pool); 3388 /* decrement the node reference count held for this callback 3389 * function. 3390 */ 3391 lpfc_nlp_put(ndlp); 3392 3393 return; 3394 } 3395 3396 static void 3397 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3398 { 3399 MAILBOX_t *mb = &pmb->u.mb; 3400 struct lpfc_vport *vport = pmb->vport; 3401 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3402 3403 switch (mb->mbxStatus) { 3404 case 0x0011: 3405 case 0x0020: 3406 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3407 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3408 mb->mbxStatus); 3409 break; 3410 /* If VPI is busy, reset the HBA */ 3411 case 0x9700: 3412 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3413 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3414 vport->vpi, mb->mbxStatus); 3415 if (!(phba->pport->load_flag & FC_UNLOADING)) 3416 lpfc_workq_post_event(phba, NULL, NULL, 3417 LPFC_EVT_RESET_HBA); 3418 } 3419 spin_lock_irq(shost->host_lock); 3420 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3421 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3422 spin_unlock_irq(shost->host_lock); 3423 vport->unreg_vpi_cmpl = VPORT_OK; 3424 mempool_free(pmb, phba->mbox_mem_pool); 3425 lpfc_cleanup_vports_rrqs(vport, NULL); 3426 /* 3427 * This shost reference might have been taken at the beginning of 3428 * lpfc_vport_delete() 3429 */ 3430 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3431 scsi_host_put(shost); 3432 } 3433 3434 int 3435 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3436 { 3437 struct lpfc_hba *phba = vport->phba; 3438 LPFC_MBOXQ_t *mbox; 3439 int rc; 3440 3441 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3442 if (!mbox) 3443 return 1; 3444 3445 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3446 mbox->vport = vport; 3447 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3448 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3449 if (rc == MBX_NOT_FINISHED) { 3450 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3451 "1800 Could not issue unreg_vpi\n"); 3452 mempool_free(mbox, phba->mbox_mem_pool); 3453 vport->unreg_vpi_cmpl = VPORT_ERROR; 3454 return rc; 3455 } 3456 return 0; 3457 } 3458 3459 static void 3460 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3461 { 3462 struct lpfc_vport *vport = pmb->vport; 3463 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3464 MAILBOX_t *mb = &pmb->u.mb; 3465 3466 switch (mb->mbxStatus) { 3467 case 0x0011: 3468 case 0x9601: 3469 case 0x9602: 3470 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3471 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3472 mb->mbxStatus); 3473 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3474 spin_lock_irq(shost->host_lock); 3475 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3476 spin_unlock_irq(shost->host_lock); 3477 vport->fc_myDID = 0; 3478 goto out; 3479 } 3480 3481 spin_lock_irq(shost->host_lock); 3482 vport->vpi_state |= LPFC_VPI_REGISTERED; 3483 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3484 spin_unlock_irq(shost->host_lock); 3485 vport->num_disc_nodes = 0; 3486 /* go thru NPR list and issue ELS PLOGIs */ 3487 if (vport->fc_npr_cnt) 3488 lpfc_els_disc_plogi(vport); 3489 3490 if (!vport->num_disc_nodes) { 3491 spin_lock_irq(shost->host_lock); 3492 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3493 spin_unlock_irq(shost->host_lock); 3494 lpfc_can_disctmo(vport); 3495 } 3496 vport->port_state = LPFC_VPORT_READY; 3497 3498 out: 3499 mempool_free(pmb, phba->mbox_mem_pool); 3500 return; 3501 } 3502 3503 /** 3504 * lpfc_create_static_vport - Read HBA config region to create static vports. 3505 * @phba: pointer to lpfc hba data structure. 3506 * 3507 * This routine issue a DUMP mailbox command for config region 22 to get 3508 * the list of static vports to be created. The function create vports 3509 * based on the information returned from the HBA. 3510 **/ 3511 void 3512 lpfc_create_static_vport(struct lpfc_hba *phba) 3513 { 3514 LPFC_MBOXQ_t *pmb = NULL; 3515 MAILBOX_t *mb; 3516 struct static_vport_info *vport_info; 3517 int mbx_wait_rc = 0, i; 3518 struct fc_vport_identifiers vport_id; 3519 struct fc_vport *new_fc_vport; 3520 struct Scsi_Host *shost; 3521 struct lpfc_vport *vport; 3522 uint16_t offset = 0; 3523 uint8_t *vport_buff; 3524 struct lpfc_dmabuf *mp; 3525 uint32_t byte_count = 0; 3526 3527 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3528 if (!pmb) { 3529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3530 "0542 lpfc_create_static_vport failed to" 3531 " allocate mailbox memory\n"); 3532 return; 3533 } 3534 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3535 mb = &pmb->u.mb; 3536 3537 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3538 if (!vport_info) { 3539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3540 "0543 lpfc_create_static_vport failed to" 3541 " allocate vport_info\n"); 3542 mempool_free(pmb, phba->mbox_mem_pool); 3543 return; 3544 } 3545 3546 vport_buff = (uint8_t *) vport_info; 3547 do { 3548 /* free dma buffer from previous round */ 3549 if (pmb->context1) { 3550 mp = (struct lpfc_dmabuf *)pmb->context1; 3551 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3552 kfree(mp); 3553 } 3554 if (lpfc_dump_static_vport(phba, pmb, offset)) 3555 goto out; 3556 3557 pmb->vport = phba->pport; 3558 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3559 LPFC_MBOX_TMO); 3560 3561 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3562 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3563 "0544 lpfc_create_static_vport failed to" 3564 " issue dump mailbox command ret 0x%x " 3565 "status 0x%x\n", 3566 mbx_wait_rc, mb->mbxStatus); 3567 goto out; 3568 } 3569 3570 if (phba->sli_rev == LPFC_SLI_REV4) { 3571 byte_count = pmb->u.mqe.un.mb_words[5]; 3572 mp = (struct lpfc_dmabuf *)pmb->context1; 3573 if (byte_count > sizeof(struct static_vport_info) - 3574 offset) 3575 byte_count = sizeof(struct static_vport_info) 3576 - offset; 3577 memcpy(vport_buff + offset, mp->virt, byte_count); 3578 offset += byte_count; 3579 } else { 3580 if (mb->un.varDmp.word_cnt > 3581 sizeof(struct static_vport_info) - offset) 3582 mb->un.varDmp.word_cnt = 3583 sizeof(struct static_vport_info) 3584 - offset; 3585 byte_count = mb->un.varDmp.word_cnt; 3586 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3587 vport_buff + offset, 3588 byte_count); 3589 3590 offset += byte_count; 3591 } 3592 3593 } while (byte_count && 3594 offset < sizeof(struct static_vport_info)); 3595 3596 3597 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3598 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3599 != VPORT_INFO_REV)) { 3600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3601 "0545 lpfc_create_static_vport bad" 3602 " information header 0x%x 0x%x\n", 3603 le32_to_cpu(vport_info->signature), 3604 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3605 3606 goto out; 3607 } 3608 3609 shost = lpfc_shost_from_vport(phba->pport); 3610 3611 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3612 memset(&vport_id, 0, sizeof(vport_id)); 3613 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3614 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3615 if (!vport_id.port_name || !vport_id.node_name) 3616 continue; 3617 3618 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3619 vport_id.vport_type = FC_PORTTYPE_NPIV; 3620 vport_id.disable = false; 3621 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3622 3623 if (!new_fc_vport) { 3624 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3625 "0546 lpfc_create_static_vport failed to" 3626 " create vport\n"); 3627 continue; 3628 } 3629 3630 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3631 vport->vport_flag |= STATIC_VPORT; 3632 } 3633 3634 out: 3635 kfree(vport_info); 3636 if (mbx_wait_rc != MBX_TIMEOUT) { 3637 if (pmb->context1) { 3638 mp = (struct lpfc_dmabuf *)pmb->context1; 3639 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3640 kfree(mp); 3641 } 3642 mempool_free(pmb, phba->mbox_mem_pool); 3643 } 3644 3645 return; 3646 } 3647 3648 /* 3649 * This routine handles processing a Fabric REG_LOGIN mailbox 3650 * command upon completion. It is setup in the LPFC_MBOXQ 3651 * as the completion routine when the command is 3652 * handed off to the SLI layer. 3653 */ 3654 void 3655 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3656 { 3657 struct lpfc_vport *vport = pmb->vport; 3658 MAILBOX_t *mb = &pmb->u.mb; 3659 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3660 struct lpfc_nodelist *ndlp; 3661 struct Scsi_Host *shost; 3662 3663 ndlp = (struct lpfc_nodelist *) pmb->context2; 3664 pmb->context1 = NULL; 3665 pmb->context2 = NULL; 3666 3667 if (mb->mbxStatus) { 3668 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3669 "0258 Register Fabric login error: 0x%x\n", 3670 mb->mbxStatus); 3671 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3672 kfree(mp); 3673 mempool_free(pmb, phba->mbox_mem_pool); 3674 3675 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3676 /* FLOGI failed, use loop map to make discovery list */ 3677 lpfc_disc_list_loopmap(vport); 3678 3679 /* Start discovery */ 3680 lpfc_disc_start(vport); 3681 /* Decrement the reference count to ndlp after the 3682 * reference to the ndlp are done. 3683 */ 3684 lpfc_nlp_put(ndlp); 3685 return; 3686 } 3687 3688 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3689 /* Decrement the reference count to ndlp after the reference 3690 * to the ndlp are done. 3691 */ 3692 lpfc_nlp_put(ndlp); 3693 return; 3694 } 3695 3696 if (phba->sli_rev < LPFC_SLI_REV4) 3697 ndlp->nlp_rpi = mb->un.varWords[0]; 3698 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3699 ndlp->nlp_type |= NLP_FABRIC; 3700 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3701 3702 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3703 /* when physical port receive logo donot start 3704 * vport discovery */ 3705 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3706 lpfc_start_fdiscs(phba); 3707 else { 3708 shost = lpfc_shost_from_vport(vport); 3709 spin_lock_irq(shost->host_lock); 3710 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3711 spin_unlock_irq(shost->host_lock); 3712 } 3713 lpfc_do_scr_ns_plogi(phba, vport); 3714 } 3715 3716 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3717 kfree(mp); 3718 mempool_free(pmb, phba->mbox_mem_pool); 3719 3720 /* Drop the reference count from the mbox at the end after 3721 * all the current reference to the ndlp have been done. 3722 */ 3723 lpfc_nlp_put(ndlp); 3724 return; 3725 } 3726 3727 /* 3728 * This routine handles processing a NameServer REG_LOGIN mailbox 3729 * command upon completion. It is setup in the LPFC_MBOXQ 3730 * as the completion routine when the command is 3731 * handed off to the SLI layer. 3732 */ 3733 void 3734 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3735 { 3736 MAILBOX_t *mb = &pmb->u.mb; 3737 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3738 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3739 struct lpfc_vport *vport = pmb->vport; 3740 3741 pmb->context1 = NULL; 3742 pmb->context2 = NULL; 3743 3744 if (mb->mbxStatus) { 3745 out: 3746 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3747 "0260 Register NameServer error: 0x%x\n", 3748 mb->mbxStatus); 3749 /* decrement the node reference count held for this 3750 * callback function. 3751 */ 3752 lpfc_nlp_put(ndlp); 3753 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3754 kfree(mp); 3755 mempool_free(pmb, phba->mbox_mem_pool); 3756 3757 /* If no other thread is using the ndlp, free it */ 3758 lpfc_nlp_not_used(ndlp); 3759 3760 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3761 /* 3762 * RegLogin failed, use loop map to make discovery 3763 * list 3764 */ 3765 lpfc_disc_list_loopmap(vport); 3766 3767 /* Start discovery */ 3768 lpfc_disc_start(vport); 3769 return; 3770 } 3771 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3772 return; 3773 } 3774 3775 if (phba->sli_rev < LPFC_SLI_REV4) 3776 ndlp->nlp_rpi = mb->un.varWords[0]; 3777 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3778 ndlp->nlp_type |= NLP_FABRIC; 3779 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3780 3781 if (vport->port_state < LPFC_VPORT_READY) { 3782 /* Link up discovery requires Fabric registration. */ 3783 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */ 3784 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3785 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3786 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3787 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3788 3789 /* Issue SCR just before NameServer GID_FT Query */ 3790 lpfc_issue_els_scr(vport, SCR_DID, 0); 3791 } 3792 3793 vport->fc_ns_retry = 0; 3794 /* Good status, issue CT Request to NameServer */ 3795 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) { 3796 /* Cannot issue NameServer Query, so finish up discovery */ 3797 goto out; 3798 } 3799 3800 /* decrement the node reference count held for this 3801 * callback function. 3802 */ 3803 lpfc_nlp_put(ndlp); 3804 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3805 kfree(mp); 3806 mempool_free(pmb, phba->mbox_mem_pool); 3807 3808 return; 3809 } 3810 3811 static void 3812 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 3813 { 3814 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3815 struct fc_rport *rport; 3816 struct lpfc_rport_data *rdata; 3817 struct fc_rport_identifiers rport_ids; 3818 struct lpfc_hba *phba = vport->phba; 3819 3820 /* Remote port has reappeared. Re-register w/ FC transport */ 3821 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 3822 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 3823 rport_ids.port_id = ndlp->nlp_DID; 3824 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 3825 3826 /* 3827 * We leave our node pointer in rport->dd_data when we unregister a 3828 * FCP target port. But fc_remote_port_add zeros the space to which 3829 * rport->dd_data points. So, if we're reusing a previously 3830 * registered port, drop the reference that we took the last time we 3831 * registered the port. 3832 */ 3833 if (ndlp->rport && ndlp->rport->dd_data && 3834 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) 3835 lpfc_nlp_put(ndlp); 3836 3837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 3838 "rport add: did:x%x flg:x%x type x%x", 3839 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3840 3841 /* Don't add the remote port if unloading. */ 3842 if (vport->load_flag & FC_UNLOADING) 3843 return; 3844 3845 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 3846 if (!rport || !get_device(&rport->dev)) { 3847 dev_printk(KERN_WARNING, &phba->pcidev->dev, 3848 "Warning: fc_remote_port_add failed\n"); 3849 return; 3850 } 3851 3852 /* initialize static port data */ 3853 rport->maxframe_size = ndlp->nlp_maxframe; 3854 rport->supported_classes = ndlp->nlp_class_sup; 3855 rdata = rport->dd_data; 3856 rdata->pnode = lpfc_nlp_get(ndlp); 3857 3858 if (ndlp->nlp_type & NLP_FCP_TARGET) 3859 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 3860 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 3861 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 3862 3863 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 3864 fc_remote_port_rolechg(rport, rport_ids.roles); 3865 3866 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3867 "3183 rport register x%06x, rport %p role x%x\n", 3868 ndlp->nlp_DID, rport, rport_ids.roles); 3869 3870 if ((rport->scsi_target_id != -1) && 3871 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 3872 ndlp->nlp_sid = rport->scsi_target_id; 3873 } 3874 return; 3875 } 3876 3877 static void 3878 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 3879 { 3880 struct fc_rport *rport = ndlp->rport; 3881 3882 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 3883 "rport delete: did:x%x flg:x%x type x%x", 3884 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 3885 3886 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3887 "3184 rport unregister x%06x, rport %p\n", 3888 ndlp->nlp_DID, rport); 3889 3890 fc_remote_port_delete(rport); 3891 3892 return; 3893 } 3894 3895 static void 3896 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 3897 { 3898 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3899 3900 spin_lock_irq(shost->host_lock); 3901 switch (state) { 3902 case NLP_STE_UNUSED_NODE: 3903 vport->fc_unused_cnt += count; 3904 break; 3905 case NLP_STE_PLOGI_ISSUE: 3906 vport->fc_plogi_cnt += count; 3907 break; 3908 case NLP_STE_ADISC_ISSUE: 3909 vport->fc_adisc_cnt += count; 3910 break; 3911 case NLP_STE_REG_LOGIN_ISSUE: 3912 vport->fc_reglogin_cnt += count; 3913 break; 3914 case NLP_STE_PRLI_ISSUE: 3915 vport->fc_prli_cnt += count; 3916 break; 3917 case NLP_STE_UNMAPPED_NODE: 3918 vport->fc_unmap_cnt += count; 3919 break; 3920 case NLP_STE_MAPPED_NODE: 3921 vport->fc_map_cnt += count; 3922 break; 3923 case NLP_STE_NPR_NODE: 3924 vport->fc_npr_cnt += count; 3925 break; 3926 } 3927 spin_unlock_irq(shost->host_lock); 3928 } 3929 3930 static void 3931 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3932 int old_state, int new_state) 3933 { 3934 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3935 3936 if (new_state == NLP_STE_UNMAPPED_NODE) { 3937 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 3938 ndlp->nlp_type |= NLP_FC_NODE; 3939 } 3940 if (new_state == NLP_STE_MAPPED_NODE) 3941 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 3942 if (new_state == NLP_STE_NPR_NODE) 3943 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 3944 3945 /* Transport interface */ 3946 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE || 3947 old_state == NLP_STE_UNMAPPED_NODE)) { 3948 vport->phba->nport_event_cnt++; 3949 lpfc_unregister_remote_port(ndlp); 3950 } 3951 3952 if (new_state == NLP_STE_MAPPED_NODE || 3953 new_state == NLP_STE_UNMAPPED_NODE) { 3954 vport->phba->nport_event_cnt++; 3955 /* 3956 * Tell the fc transport about the port, if we haven't 3957 * already. If we have, and it's a scsi entity, be 3958 * sure to unblock any attached scsi devices 3959 */ 3960 lpfc_register_remote_port(vport, ndlp); 3961 } 3962 if ((new_state == NLP_STE_MAPPED_NODE) && 3963 (vport->stat_data_enabled)) { 3964 /* 3965 * A new target is discovered, if there is no buffer for 3966 * statistical data collection allocate buffer. 3967 */ 3968 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 3969 sizeof(struct lpfc_scsicmd_bkt), 3970 GFP_KERNEL); 3971 3972 if (!ndlp->lat_data) 3973 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3974 "0286 lpfc_nlp_state_cleanup failed to " 3975 "allocate statistical data buffer DID " 3976 "0x%x\n", ndlp->nlp_DID); 3977 } 3978 /* 3979 * if we added to Mapped list, but the remote port 3980 * registration failed or assigned a target id outside 3981 * our presentable range - move the node to the 3982 * Unmapped List 3983 */ 3984 if (new_state == NLP_STE_MAPPED_NODE && 3985 (!ndlp->rport || 3986 ndlp->rport->scsi_target_id == -1 || 3987 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 3988 spin_lock_irq(shost->host_lock); 3989 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 3990 spin_unlock_irq(shost->host_lock); 3991 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3992 } 3993 } 3994 3995 static char * 3996 lpfc_nlp_state_name(char *buffer, size_t size, int state) 3997 { 3998 static char *states[] = { 3999 [NLP_STE_UNUSED_NODE] = "UNUSED", 4000 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4001 [NLP_STE_ADISC_ISSUE] = "ADISC", 4002 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4003 [NLP_STE_PRLI_ISSUE] = "PRLI", 4004 [NLP_STE_LOGO_ISSUE] = "LOGO", 4005 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4006 [NLP_STE_MAPPED_NODE] = "MAPPED", 4007 [NLP_STE_NPR_NODE] = "NPR", 4008 }; 4009 4010 if (state < NLP_STE_MAX_STATE && states[state]) 4011 strlcpy(buffer, states[state], size); 4012 else 4013 snprintf(buffer, size, "unknown (%d)", state); 4014 return buffer; 4015 } 4016 4017 void 4018 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4019 int state) 4020 { 4021 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4022 int old_state = ndlp->nlp_state; 4023 char name1[16], name2[16]; 4024 4025 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4026 "0904 NPort state transition x%06x, %s -> %s\n", 4027 ndlp->nlp_DID, 4028 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4029 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4030 4031 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4032 "node statechg did:x%x old:%d ste:%d", 4033 ndlp->nlp_DID, old_state, state); 4034 4035 if (old_state == NLP_STE_NPR_NODE && 4036 state != NLP_STE_NPR_NODE) 4037 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4038 if (old_state == NLP_STE_UNMAPPED_NODE) { 4039 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4040 ndlp->nlp_type &= ~NLP_FC_NODE; 4041 } 4042 4043 if (list_empty(&ndlp->nlp_listp)) { 4044 spin_lock_irq(shost->host_lock); 4045 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4046 spin_unlock_irq(shost->host_lock); 4047 } else if (old_state) 4048 lpfc_nlp_counters(vport, old_state, -1); 4049 4050 ndlp->nlp_state = state; 4051 lpfc_nlp_counters(vport, state, 1); 4052 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4053 } 4054 4055 void 4056 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4057 { 4058 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4059 4060 if (list_empty(&ndlp->nlp_listp)) { 4061 spin_lock_irq(shost->host_lock); 4062 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4063 spin_unlock_irq(shost->host_lock); 4064 } 4065 } 4066 4067 void 4068 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4069 { 4070 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4071 4072 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4073 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4074 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4075 spin_lock_irq(shost->host_lock); 4076 list_del_init(&ndlp->nlp_listp); 4077 spin_unlock_irq(shost->host_lock); 4078 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4079 NLP_STE_UNUSED_NODE); 4080 } 4081 4082 static void 4083 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4084 { 4085 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4086 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4087 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4088 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4089 NLP_STE_UNUSED_NODE); 4090 } 4091 /** 4092 * lpfc_initialize_node - Initialize all fields of node object 4093 * @vport: Pointer to Virtual Port object. 4094 * @ndlp: Pointer to FC node object. 4095 * @did: FC_ID of the node. 4096 * 4097 * This function is always called when node object need to be initialized. 4098 * It initializes all the fields of the node object. Although the reference 4099 * to phba from @ndlp can be obtained indirectly through it's reference to 4100 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4101 * to the life-span of the @ndlp might go beyond the existence of @vport as 4102 * the final release of ndlp is determined by its reference count. And, the 4103 * operation on @ndlp needs the reference to phba. 4104 **/ 4105 static inline void 4106 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4107 uint32_t did) 4108 { 4109 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4110 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4111 init_timer(&ndlp->nlp_delayfunc); 4112 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; 4113 ndlp->nlp_delayfunc.data = (unsigned long)ndlp; 4114 ndlp->nlp_DID = did; 4115 ndlp->vport = vport; 4116 ndlp->phba = vport->phba; 4117 ndlp->nlp_sid = NLP_NO_SID; 4118 kref_init(&ndlp->kref); 4119 NLP_INT_NODE_ACT(ndlp); 4120 atomic_set(&ndlp->cmd_pending, 0); 4121 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4122 if (vport->phba->sli_rev == LPFC_SLI_REV4) 4123 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); 4124 } 4125 4126 struct lpfc_nodelist * 4127 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4128 int state) 4129 { 4130 struct lpfc_hba *phba = vport->phba; 4131 uint32_t did; 4132 unsigned long flags; 4133 4134 if (!ndlp) 4135 return NULL; 4136 4137 spin_lock_irqsave(&phba->ndlp_lock, flags); 4138 /* The ndlp should not be in memory free mode */ 4139 if (NLP_CHK_FREE_REQ(ndlp)) { 4140 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4141 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4142 "0277 lpfc_enable_node: ndlp:x%p " 4143 "usgmap:x%x refcnt:%d\n", 4144 (void *)ndlp, ndlp->nlp_usg_map, 4145 atomic_read(&ndlp->kref.refcount)); 4146 return NULL; 4147 } 4148 /* The ndlp should not already be in active mode */ 4149 if (NLP_CHK_NODE_ACT(ndlp)) { 4150 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4151 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4152 "0278 lpfc_enable_node: ndlp:x%p " 4153 "usgmap:x%x refcnt:%d\n", 4154 (void *)ndlp, ndlp->nlp_usg_map, 4155 atomic_read(&ndlp->kref.refcount)); 4156 return NULL; 4157 } 4158 4159 /* Keep the original DID */ 4160 did = ndlp->nlp_DID; 4161 4162 /* re-initialize ndlp except of ndlp linked list pointer */ 4163 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4164 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4165 lpfc_initialize_node(vport, ndlp, did); 4166 4167 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4168 4169 if (state != NLP_STE_UNUSED_NODE) 4170 lpfc_nlp_set_state(vport, ndlp, state); 4171 4172 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4173 "node enable: did:x%x", 4174 ndlp->nlp_DID, 0, 0); 4175 return ndlp; 4176 } 4177 4178 void 4179 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4180 { 4181 /* 4182 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4183 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4184 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4185 * until ALL other outstanding threads have completed. We check 4186 * that the ndlp not already in the UNUSED state before we proceed. 4187 */ 4188 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4189 return; 4190 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4191 if (vport->phba->sli_rev == LPFC_SLI_REV4) 4192 lpfc_cleanup_vports_rrqs(vport, ndlp); 4193 lpfc_nlp_put(ndlp); 4194 return; 4195 } 4196 4197 /* 4198 * Start / ReStart rescue timer for Discovery / RSCN handling 4199 */ 4200 void 4201 lpfc_set_disctmo(struct lpfc_vport *vport) 4202 { 4203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4204 struct lpfc_hba *phba = vport->phba; 4205 uint32_t tmo; 4206 4207 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4208 /* For FAN, timeout should be greater than edtov */ 4209 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4210 } else { 4211 /* Normal discovery timeout should be > than ELS/CT timeout 4212 * FC spec states we need 3 * ratov for CT requests 4213 */ 4214 tmo = ((phba->fc_ratov * 3) + 3); 4215 } 4216 4217 4218 if (!timer_pending(&vport->fc_disctmo)) { 4219 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4220 "set disc timer: tmo:x%x state:x%x flg:x%x", 4221 tmo, vport->port_state, vport->fc_flag); 4222 } 4223 4224 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo); 4225 spin_lock_irq(shost->host_lock); 4226 vport->fc_flag |= FC_DISC_TMO; 4227 spin_unlock_irq(shost->host_lock); 4228 4229 /* Start Discovery Timer state <hba_state> */ 4230 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4231 "0247 Start Discovery Timer state x%x " 4232 "Data: x%x x%lx x%x x%x\n", 4233 vport->port_state, tmo, 4234 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4235 vport->fc_adisc_cnt); 4236 4237 return; 4238 } 4239 4240 /* 4241 * Cancel rescue timer for Discovery / RSCN handling 4242 */ 4243 int 4244 lpfc_can_disctmo(struct lpfc_vport *vport) 4245 { 4246 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4247 unsigned long iflags; 4248 4249 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4250 "can disc timer: state:x%x rtry:x%x flg:x%x", 4251 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4252 4253 /* Turn off discovery timer if its running */ 4254 if (vport->fc_flag & FC_DISC_TMO) { 4255 spin_lock_irqsave(shost->host_lock, iflags); 4256 vport->fc_flag &= ~FC_DISC_TMO; 4257 spin_unlock_irqrestore(shost->host_lock, iflags); 4258 del_timer_sync(&vport->fc_disctmo); 4259 spin_lock_irqsave(&vport->work_port_lock, iflags); 4260 vport->work_port_events &= ~WORKER_DISC_TMO; 4261 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4262 } 4263 4264 /* Cancel Discovery Timer state <hba_state> */ 4265 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4266 "0248 Cancel Discovery Timer state x%x " 4267 "Data: x%x x%x x%x\n", 4268 vport->port_state, vport->fc_flag, 4269 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4270 return 0; 4271 } 4272 4273 /* 4274 * Check specified ring for outstanding IOCB on the SLI queue 4275 * Return true if iocb matches the specified nport 4276 */ 4277 int 4278 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4279 struct lpfc_sli_ring *pring, 4280 struct lpfc_iocbq *iocb, 4281 struct lpfc_nodelist *ndlp) 4282 { 4283 struct lpfc_sli *psli = &phba->sli; 4284 IOCB_t *icmd = &iocb->iocb; 4285 struct lpfc_vport *vport = ndlp->vport; 4286 4287 if (iocb->vport != vport) 4288 return 0; 4289 4290 if (pring->ringno == LPFC_ELS_RING) { 4291 switch (icmd->ulpCommand) { 4292 case CMD_GEN_REQUEST64_CR: 4293 if (iocb->context_un.ndlp == ndlp) 4294 return 1; 4295 case CMD_ELS_REQUEST64_CR: 4296 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4297 return 1; 4298 case CMD_XMIT_ELS_RSP64_CX: 4299 if (iocb->context1 == (uint8_t *) ndlp) 4300 return 1; 4301 } 4302 } else if (pring->ringno == psli->extra_ring) { 4303 4304 } else if (pring->ringno == psli->fcp_ring) { 4305 /* Skip match check if waiting to relogin to FCP target */ 4306 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4307 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4308 return 0; 4309 } 4310 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4311 return 1; 4312 } 4313 } else if (pring->ringno == psli->next_ring) { 4314 4315 } 4316 return 0; 4317 } 4318 4319 /* 4320 * Free resources / clean up outstanding I/Os 4321 * associated with nlp_rpi in the LPFC_NODELIST entry. 4322 */ 4323 static int 4324 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4325 { 4326 LIST_HEAD(completions); 4327 struct lpfc_sli *psli; 4328 struct lpfc_sli_ring *pring; 4329 struct lpfc_iocbq *iocb, *next_iocb; 4330 uint32_t i; 4331 4332 lpfc_fabric_abort_nport(ndlp); 4333 4334 /* 4335 * Everything that matches on txcmplq will be returned 4336 * by firmware with a no rpi error. 4337 */ 4338 psli = &phba->sli; 4339 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4340 /* Now process each ring */ 4341 for (i = 0; i < psli->num_rings; i++) { 4342 pring = &psli->ring[i]; 4343 4344 spin_lock_irq(&phba->hbalock); 4345 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, 4346 list) { 4347 /* 4348 * Check to see if iocb matches the nport we are 4349 * looking for 4350 */ 4351 if ((lpfc_check_sli_ndlp(phba, pring, iocb, 4352 ndlp))) { 4353 /* It matches, so deque and call compl 4354 with an error */ 4355 list_move_tail(&iocb->list, 4356 &completions); 4357 pring->txq_cnt--; 4358 } 4359 } 4360 spin_unlock_irq(&phba->hbalock); 4361 } 4362 } 4363 4364 /* Cancel all the IOCBs from the completions list */ 4365 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4366 IOERR_SLI_ABORTED); 4367 4368 return 0; 4369 } 4370 4371 /** 4372 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4373 * @phba: Pointer to HBA context object. 4374 * @pmb: Pointer to mailbox object. 4375 * 4376 * This function will issue an ELS LOGO command after completing 4377 * the UNREG_RPI. 4378 **/ 4379 void 4380 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4381 { 4382 struct lpfc_vport *vport = pmb->vport; 4383 struct lpfc_nodelist *ndlp; 4384 4385 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4386 if (!ndlp) 4387 return; 4388 lpfc_issue_els_logo(vport, ndlp, 0); 4389 } 4390 4391 /* 4392 * Free rpi associated with LPFC_NODELIST entry. 4393 * This routine is called from lpfc_freenode(), when we are removing 4394 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4395 * LOGO that completes successfully, and we are waiting to PLOGI back 4396 * to the remote NPort. In addition, it is called after we receive 4397 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4398 * we are waiting to PLOGI back to the remote NPort. 4399 */ 4400 int 4401 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4402 { 4403 struct lpfc_hba *phba = vport->phba; 4404 LPFC_MBOXQ_t *mbox; 4405 int rc; 4406 uint16_t rpi; 4407 4408 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4409 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4410 if (mbox) { 4411 /* SLI4 ports require the physical rpi value. */ 4412 rpi = ndlp->nlp_rpi; 4413 if (phba->sli_rev == LPFC_SLI_REV4) 4414 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4415 4416 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4417 mbox->vport = vport; 4418 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4419 mbox->context1 = ndlp; 4420 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4421 } else { 4422 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4423 } 4424 4425 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4426 if (rc == MBX_NOT_FINISHED) 4427 mempool_free(mbox, phba->mbox_mem_pool); 4428 } 4429 lpfc_no_rpi(phba, ndlp); 4430 4431 if (phba->sli_rev != LPFC_SLI_REV4) 4432 ndlp->nlp_rpi = 0; 4433 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4434 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4435 return 1; 4436 } 4437 return 0; 4438 } 4439 4440 /** 4441 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4442 * @phba: pointer to lpfc hba data structure. 4443 * 4444 * This routine is invoked to unregister all the currently registered RPIs 4445 * to the HBA. 4446 **/ 4447 void 4448 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4449 { 4450 struct lpfc_vport **vports; 4451 struct lpfc_nodelist *ndlp; 4452 struct Scsi_Host *shost; 4453 int i; 4454 4455 vports = lpfc_create_vport_work_array(phba); 4456 if (!vports) { 4457 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4458 "2884 Vport array allocation failed \n"); 4459 return; 4460 } 4461 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4462 shost = lpfc_shost_from_vport(vports[i]); 4463 spin_lock_irq(shost->host_lock); 4464 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4465 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4466 /* The mempool_alloc might sleep */ 4467 spin_unlock_irq(shost->host_lock); 4468 lpfc_unreg_rpi(vports[i], ndlp); 4469 spin_lock_irq(shost->host_lock); 4470 } 4471 } 4472 spin_unlock_irq(shost->host_lock); 4473 } 4474 lpfc_destroy_vport_work_array(phba, vports); 4475 } 4476 4477 void 4478 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4479 { 4480 struct lpfc_hba *phba = vport->phba; 4481 LPFC_MBOXQ_t *mbox; 4482 int rc; 4483 4484 if (phba->sli_rev == LPFC_SLI_REV4) { 4485 lpfc_sli4_unreg_all_rpis(vport); 4486 return; 4487 } 4488 4489 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4490 if (mbox) { 4491 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4492 mbox); 4493 mbox->vport = vport; 4494 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4495 mbox->context1 = NULL; 4496 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4497 if (rc != MBX_TIMEOUT) 4498 mempool_free(mbox, phba->mbox_mem_pool); 4499 4500 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4501 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4502 "1836 Could not issue " 4503 "unreg_login(all_rpis) status %d\n", rc); 4504 } 4505 } 4506 4507 void 4508 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4509 { 4510 struct lpfc_hba *phba = vport->phba; 4511 LPFC_MBOXQ_t *mbox; 4512 int rc; 4513 4514 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4515 if (mbox) { 4516 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4517 mbox); 4518 mbox->vport = vport; 4519 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4520 mbox->context1 = NULL; 4521 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4522 if (rc != MBX_TIMEOUT) 4523 mempool_free(mbox, phba->mbox_mem_pool); 4524 4525 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4526 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4527 "1815 Could not issue " 4528 "unreg_did (default rpis) status %d\n", 4529 rc); 4530 } 4531 } 4532 4533 /* 4534 * Free resources associated with LPFC_NODELIST entry 4535 * so it can be freed. 4536 */ 4537 static int 4538 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4539 { 4540 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4541 struct lpfc_hba *phba = vport->phba; 4542 LPFC_MBOXQ_t *mb, *nextmb; 4543 struct lpfc_dmabuf *mp; 4544 4545 /* Cleanup node for NPort <nlp_DID> */ 4546 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4547 "0900 Cleanup node for NPort x%x " 4548 "Data: x%x x%x x%x\n", 4549 ndlp->nlp_DID, ndlp->nlp_flag, 4550 ndlp->nlp_state, ndlp->nlp_rpi); 4551 if (NLP_CHK_FREE_REQ(ndlp)) { 4552 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4553 "0280 lpfc_cleanup_node: ndlp:x%p " 4554 "usgmap:x%x refcnt:%d\n", 4555 (void *)ndlp, ndlp->nlp_usg_map, 4556 atomic_read(&ndlp->kref.refcount)); 4557 lpfc_dequeue_node(vport, ndlp); 4558 } else { 4559 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4560 "0281 lpfc_cleanup_node: ndlp:x%p " 4561 "usgmap:x%x refcnt:%d\n", 4562 (void *)ndlp, ndlp->nlp_usg_map, 4563 atomic_read(&ndlp->kref.refcount)); 4564 lpfc_disable_node(vport, ndlp); 4565 } 4566 4567 4568 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4569 4570 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4571 if ((mb = phba->sli.mbox_active)) { 4572 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4573 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4574 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4575 mb->context2 = NULL; 4576 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4577 } 4578 } 4579 4580 spin_lock_irq(&phba->hbalock); 4581 /* Cleanup REG_LOGIN completions which are not yet processed */ 4582 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4583 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4584 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4585 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4586 continue; 4587 4588 mb->context2 = NULL; 4589 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4590 } 4591 4592 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4593 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4594 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4595 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4596 mp = (struct lpfc_dmabuf *) (mb->context1); 4597 if (mp) { 4598 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4599 kfree(mp); 4600 } 4601 list_del(&mb->list); 4602 mempool_free(mb, phba->mbox_mem_pool); 4603 /* We shall not invoke the lpfc_nlp_put to decrement 4604 * the ndlp reference count as we are in the process 4605 * of lpfc_nlp_release. 4606 */ 4607 } 4608 } 4609 spin_unlock_irq(&phba->hbalock); 4610 4611 lpfc_els_abort(phba, ndlp); 4612 4613 spin_lock_irq(shost->host_lock); 4614 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4615 spin_unlock_irq(shost->host_lock); 4616 4617 ndlp->nlp_last_elscmd = 0; 4618 del_timer_sync(&ndlp->nlp_delayfunc); 4619 4620 list_del_init(&ndlp->els_retry_evt.evt_listp); 4621 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4622 lpfc_cleanup_vports_rrqs(vport, ndlp); 4623 lpfc_unreg_rpi(vport, ndlp); 4624 4625 return 0; 4626 } 4627 4628 /* 4629 * Check to see if we can free the nlp back to the freelist. 4630 * If we are in the middle of using the nlp in the discovery state 4631 * machine, defer the free till we reach the end of the state machine. 4632 */ 4633 static void 4634 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4635 { 4636 struct lpfc_hba *phba = vport->phba; 4637 struct lpfc_rport_data *rdata; 4638 LPFC_MBOXQ_t *mbox; 4639 int rc; 4640 4641 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4642 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4643 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4644 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4645 /* For this case we need to cleanup the default rpi 4646 * allocated by the firmware. 4647 */ 4648 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4649 != NULL) { 4650 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4651 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4652 if (rc) { 4653 mempool_free(mbox, phba->mbox_mem_pool); 4654 } 4655 else { 4656 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4657 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4658 mbox->vport = vport; 4659 mbox->context2 = ndlp; 4660 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4661 if (rc == MBX_NOT_FINISHED) { 4662 mempool_free(mbox, phba->mbox_mem_pool); 4663 } 4664 } 4665 } 4666 } 4667 lpfc_cleanup_node(vport, ndlp); 4668 4669 /* 4670 * We can get here with a non-NULL ndlp->rport because when we 4671 * unregister a rport we don't break the rport/node linkage. So if we 4672 * do, make sure we don't leaving any dangling pointers behind. 4673 */ 4674 if (ndlp->rport) { 4675 rdata = ndlp->rport->dd_data; 4676 rdata->pnode = NULL; 4677 ndlp->rport = NULL; 4678 } 4679 } 4680 4681 static int 4682 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4683 uint32_t did) 4684 { 4685 D_ID mydid, ndlpdid, matchdid; 4686 4687 if (did == Bcast_DID) 4688 return 0; 4689 4690 /* First check for Direct match */ 4691 if (ndlp->nlp_DID == did) 4692 return 1; 4693 4694 /* Next check for area/domain identically equals 0 match */ 4695 mydid.un.word = vport->fc_myDID; 4696 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 4697 return 0; 4698 } 4699 4700 matchdid.un.word = did; 4701 ndlpdid.un.word = ndlp->nlp_DID; 4702 if (matchdid.un.b.id == ndlpdid.un.b.id) { 4703 if ((mydid.un.b.domain == matchdid.un.b.domain) && 4704 (mydid.un.b.area == matchdid.un.b.area)) { 4705 if ((ndlpdid.un.b.domain == 0) && 4706 (ndlpdid.un.b.area == 0)) { 4707 if (ndlpdid.un.b.id) 4708 return 1; 4709 } 4710 return 0; 4711 } 4712 4713 matchdid.un.word = ndlp->nlp_DID; 4714 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 4715 (mydid.un.b.area == ndlpdid.un.b.area)) { 4716 if ((matchdid.un.b.domain == 0) && 4717 (matchdid.un.b.area == 0)) { 4718 if (matchdid.un.b.id) 4719 return 1; 4720 } 4721 } 4722 } 4723 return 0; 4724 } 4725 4726 /* Search for a nodelist entry */ 4727 static struct lpfc_nodelist * 4728 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4729 { 4730 struct lpfc_nodelist *ndlp; 4731 uint32_t data1; 4732 4733 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4734 if (lpfc_matchdid(vport, ndlp, did)) { 4735 data1 = (((uint32_t) ndlp->nlp_state << 24) | 4736 ((uint32_t) ndlp->nlp_xri << 16) | 4737 ((uint32_t) ndlp->nlp_type << 8) | 4738 ((uint32_t) ndlp->nlp_rpi & 0xff)); 4739 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4740 "0929 FIND node DID " 4741 "Data: x%p x%x x%x x%x\n", 4742 ndlp, ndlp->nlp_DID, 4743 ndlp->nlp_flag, data1); 4744 return ndlp; 4745 } 4746 } 4747 4748 /* FIND node did <did> NOT FOUND */ 4749 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4750 "0932 FIND node did x%x NOT FOUND.\n", did); 4751 return NULL; 4752 } 4753 4754 struct lpfc_nodelist * 4755 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 4756 { 4757 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4758 struct lpfc_nodelist *ndlp; 4759 unsigned long iflags; 4760 4761 spin_lock_irqsave(shost->host_lock, iflags); 4762 ndlp = __lpfc_findnode_did(vport, did); 4763 spin_unlock_irqrestore(shost->host_lock, iflags); 4764 return ndlp; 4765 } 4766 4767 struct lpfc_nodelist * 4768 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 4769 { 4770 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4771 struct lpfc_nodelist *ndlp; 4772 4773 ndlp = lpfc_findnode_did(vport, did); 4774 if (!ndlp) { 4775 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 4776 lpfc_rscn_payload_check(vport, did) == 0) 4777 return NULL; 4778 ndlp = (struct lpfc_nodelist *) 4779 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 4780 if (!ndlp) 4781 return NULL; 4782 lpfc_nlp_init(vport, ndlp, did); 4783 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4784 spin_lock_irq(shost->host_lock); 4785 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4786 spin_unlock_irq(shost->host_lock); 4787 return ndlp; 4788 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4789 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 4790 if (!ndlp) 4791 return NULL; 4792 spin_lock_irq(shost->host_lock); 4793 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4794 spin_unlock_irq(shost->host_lock); 4795 return ndlp; 4796 } 4797 4798 if ((vport->fc_flag & FC_RSCN_MODE) && 4799 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 4800 if (lpfc_rscn_payload_check(vport, did)) { 4801 /* If we've already received a PLOGI from this NPort 4802 * we don't need to try to discover it again. 4803 */ 4804 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 4805 return NULL; 4806 4807 /* Since this node is marked for discovery, 4808 * delay timeout is not needed. 4809 */ 4810 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4811 spin_lock_irq(shost->host_lock); 4812 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4813 spin_unlock_irq(shost->host_lock); 4814 } else 4815 ndlp = NULL; 4816 } else { 4817 /* If we've already received a PLOGI from this NPort, 4818 * or we are already in the process of discovery on it, 4819 * we don't need to try to discover it again. 4820 */ 4821 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 4822 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 4823 ndlp->nlp_flag & NLP_RCV_PLOGI) 4824 return NULL; 4825 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 4826 spin_lock_irq(shost->host_lock); 4827 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 4828 spin_unlock_irq(shost->host_lock); 4829 } 4830 return ndlp; 4831 } 4832 4833 /* Build a list of nodes to discover based on the loopmap */ 4834 void 4835 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 4836 { 4837 struct lpfc_hba *phba = vport->phba; 4838 int j; 4839 uint32_t alpa, index; 4840 4841 if (!lpfc_is_link_up(phba)) 4842 return; 4843 4844 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 4845 return; 4846 4847 /* Check for loop map present or not */ 4848 if (phba->alpa_map[0]) { 4849 for (j = 1; j <= phba->alpa_map[0]; j++) { 4850 alpa = phba->alpa_map[j]; 4851 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 4852 continue; 4853 lpfc_setup_disc_node(vport, alpa); 4854 } 4855 } else { 4856 /* No alpamap, so try all alpa's */ 4857 for (j = 0; j < FC_MAXLOOP; j++) { 4858 /* If cfg_scan_down is set, start from highest 4859 * ALPA (0xef) to lowest (0x1). 4860 */ 4861 if (vport->cfg_scan_down) 4862 index = j; 4863 else 4864 index = FC_MAXLOOP - j - 1; 4865 alpa = lpfcAlpaArray[index]; 4866 if ((vport->fc_myDID & 0xff) == alpa) 4867 continue; 4868 lpfc_setup_disc_node(vport, alpa); 4869 } 4870 } 4871 return; 4872 } 4873 4874 void 4875 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 4876 { 4877 LPFC_MBOXQ_t *mbox; 4878 struct lpfc_sli *psli = &phba->sli; 4879 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring]; 4880 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring]; 4881 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring]; 4882 int rc; 4883 4884 /* 4885 * if it's not a physical port or if we already send 4886 * clear_la then don't send it. 4887 */ 4888 if ((phba->link_state >= LPFC_CLEAR_LA) || 4889 (vport->port_type != LPFC_PHYSICAL_PORT) || 4890 (phba->sli_rev == LPFC_SLI_REV4)) 4891 return; 4892 4893 /* Link up discovery */ 4894 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 4895 phba->link_state = LPFC_CLEAR_LA; 4896 lpfc_clear_la(phba, mbox); 4897 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 4898 mbox->vport = vport; 4899 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4900 if (rc == MBX_NOT_FINISHED) { 4901 mempool_free(mbox, phba->mbox_mem_pool); 4902 lpfc_disc_flush_list(vport); 4903 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 4904 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 4905 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 4906 phba->link_state = LPFC_HBA_ERROR; 4907 } 4908 } 4909 } 4910 4911 /* Reg_vpi to tell firmware to resume normal operations */ 4912 void 4913 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 4914 { 4915 LPFC_MBOXQ_t *regvpimbox; 4916 4917 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4918 if (regvpimbox) { 4919 lpfc_reg_vpi(vport, regvpimbox); 4920 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 4921 regvpimbox->vport = vport; 4922 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 4923 == MBX_NOT_FINISHED) { 4924 mempool_free(regvpimbox, phba->mbox_mem_pool); 4925 } 4926 } 4927 } 4928 4929 /* Start Link up / RSCN discovery on NPR nodes */ 4930 void 4931 lpfc_disc_start(struct lpfc_vport *vport) 4932 { 4933 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4934 struct lpfc_hba *phba = vport->phba; 4935 uint32_t num_sent; 4936 uint32_t clear_la_pending; 4937 int did_changed; 4938 4939 if (!lpfc_is_link_up(phba)) 4940 return; 4941 4942 if (phba->link_state == LPFC_CLEAR_LA) 4943 clear_la_pending = 1; 4944 else 4945 clear_la_pending = 0; 4946 4947 if (vport->port_state < LPFC_VPORT_READY) 4948 vport->port_state = LPFC_DISC_AUTH; 4949 4950 lpfc_set_disctmo(vport); 4951 4952 if (vport->fc_prevDID == vport->fc_myDID) 4953 did_changed = 0; 4954 else 4955 did_changed = 1; 4956 4957 vport->fc_prevDID = vport->fc_myDID; 4958 vport->num_disc_nodes = 0; 4959 4960 /* Start Discovery state <hba_state> */ 4961 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4962 "0202 Start Discovery hba state x%x " 4963 "Data: x%x x%x x%x\n", 4964 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 4965 vport->fc_adisc_cnt); 4966 4967 /* First do ADISCs - if any */ 4968 num_sent = lpfc_els_disc_adisc(vport); 4969 4970 if (num_sent) 4971 return; 4972 4973 /* Register the VPI for SLI3, NON-NPIV only. */ 4974 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 4975 !(vport->fc_flag & FC_PT2PT) && 4976 !(vport->fc_flag & FC_RSCN_MODE) && 4977 (phba->sli_rev < LPFC_SLI_REV4)) { 4978 lpfc_issue_reg_vpi(phba, vport); 4979 return; 4980 } 4981 4982 /* 4983 * For SLI2, we need to set port_state to READY and continue 4984 * discovery. 4985 */ 4986 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 4987 /* If we get here, there is nothing to ADISC */ 4988 if (vport->port_type == LPFC_PHYSICAL_PORT) 4989 lpfc_issue_clear_la(phba, vport); 4990 4991 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 4992 vport->num_disc_nodes = 0; 4993 /* go thru NPR nodes and issue ELS PLOGIs */ 4994 if (vport->fc_npr_cnt) 4995 lpfc_els_disc_plogi(vport); 4996 4997 if (!vport->num_disc_nodes) { 4998 spin_lock_irq(shost->host_lock); 4999 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5000 spin_unlock_irq(shost->host_lock); 5001 lpfc_can_disctmo(vport); 5002 } 5003 } 5004 vport->port_state = LPFC_VPORT_READY; 5005 } else { 5006 /* Next do PLOGIs - if any */ 5007 num_sent = lpfc_els_disc_plogi(vport); 5008 5009 if (num_sent) 5010 return; 5011 5012 if (vport->fc_flag & FC_RSCN_MODE) { 5013 /* Check to see if more RSCNs came in while we 5014 * were processing this one. 5015 */ 5016 if ((vport->fc_rscn_id_cnt == 0) && 5017 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5018 spin_lock_irq(shost->host_lock); 5019 vport->fc_flag &= ~FC_RSCN_MODE; 5020 spin_unlock_irq(shost->host_lock); 5021 lpfc_can_disctmo(vport); 5022 } else 5023 lpfc_els_handle_rscn(vport); 5024 } 5025 } 5026 return; 5027 } 5028 5029 /* 5030 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5031 * ring the match the sppecified nodelist. 5032 */ 5033 static void 5034 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5035 { 5036 LIST_HEAD(completions); 5037 struct lpfc_sli *psli; 5038 IOCB_t *icmd; 5039 struct lpfc_iocbq *iocb, *next_iocb; 5040 struct lpfc_sli_ring *pring; 5041 5042 psli = &phba->sli; 5043 pring = &psli->ring[LPFC_ELS_RING]; 5044 5045 /* Error matching iocb on txq or txcmplq 5046 * First check the txq. 5047 */ 5048 spin_lock_irq(&phba->hbalock); 5049 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5050 if (iocb->context1 != ndlp) { 5051 continue; 5052 } 5053 icmd = &iocb->iocb; 5054 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5055 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5056 5057 list_move_tail(&iocb->list, &completions); 5058 pring->txq_cnt--; 5059 } 5060 } 5061 5062 /* Next check the txcmplq */ 5063 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5064 if (iocb->context1 != ndlp) { 5065 continue; 5066 } 5067 icmd = &iocb->iocb; 5068 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5069 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5070 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5071 } 5072 } 5073 spin_unlock_irq(&phba->hbalock); 5074 5075 /* Cancel all the IOCBs from the completions list */ 5076 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5077 IOERR_SLI_ABORTED); 5078 } 5079 5080 static void 5081 lpfc_disc_flush_list(struct lpfc_vport *vport) 5082 { 5083 struct lpfc_nodelist *ndlp, *next_ndlp; 5084 struct lpfc_hba *phba = vport->phba; 5085 5086 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5087 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5088 nlp_listp) { 5089 if (!NLP_CHK_NODE_ACT(ndlp)) 5090 continue; 5091 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5092 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5093 lpfc_free_tx(phba, ndlp); 5094 } 5095 } 5096 } 5097 } 5098 5099 void 5100 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5101 { 5102 lpfc_els_flush_rscn(vport); 5103 lpfc_els_flush_cmd(vport); 5104 lpfc_disc_flush_list(vport); 5105 } 5106 5107 /*****************************************************************************/ 5108 /* 5109 * NAME: lpfc_disc_timeout 5110 * 5111 * FUNCTION: Fibre Channel driver discovery timeout routine. 5112 * 5113 * EXECUTION ENVIRONMENT: interrupt only 5114 * 5115 * CALLED FROM: 5116 * Timer function 5117 * 5118 * RETURNS: 5119 * none 5120 */ 5121 /*****************************************************************************/ 5122 void 5123 lpfc_disc_timeout(unsigned long ptr) 5124 { 5125 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5126 struct lpfc_hba *phba = vport->phba; 5127 uint32_t tmo_posted; 5128 unsigned long flags = 0; 5129 5130 if (unlikely(!phba)) 5131 return; 5132 5133 spin_lock_irqsave(&vport->work_port_lock, flags); 5134 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5135 if (!tmo_posted) 5136 vport->work_port_events |= WORKER_DISC_TMO; 5137 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5138 5139 if (!tmo_posted) 5140 lpfc_worker_wake_up(phba); 5141 return; 5142 } 5143 5144 static void 5145 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5146 { 5147 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5148 struct lpfc_hba *phba = vport->phba; 5149 struct lpfc_sli *psli = &phba->sli; 5150 struct lpfc_nodelist *ndlp, *next_ndlp; 5151 LPFC_MBOXQ_t *initlinkmbox; 5152 int rc, clrlaerr = 0; 5153 5154 if (!(vport->fc_flag & FC_DISC_TMO)) 5155 return; 5156 5157 spin_lock_irq(shost->host_lock); 5158 vport->fc_flag &= ~FC_DISC_TMO; 5159 spin_unlock_irq(shost->host_lock); 5160 5161 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5162 "disc timeout: state:x%x rtry:x%x flg:x%x", 5163 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5164 5165 switch (vport->port_state) { 5166 5167 case LPFC_LOCAL_CFG_LINK: 5168 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for 5169 * FAN 5170 */ 5171 /* FAN timeout */ 5172 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5173 "0221 FAN timeout\n"); 5174 /* Start discovery by sending FLOGI, clean up old rpis */ 5175 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5176 nlp_listp) { 5177 if (!NLP_CHK_NODE_ACT(ndlp)) 5178 continue; 5179 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5180 continue; 5181 if (ndlp->nlp_type & NLP_FABRIC) { 5182 /* Clean up the ndlp on Fabric connections */ 5183 lpfc_drop_node(vport, ndlp); 5184 5185 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5186 /* Fail outstanding IO now since device 5187 * is marked for PLOGI. 5188 */ 5189 lpfc_unreg_rpi(vport, ndlp); 5190 } 5191 } 5192 if (vport->port_state != LPFC_FLOGI) { 5193 if (phba->sli_rev <= LPFC_SLI_REV3) 5194 lpfc_initial_flogi(vport); 5195 else 5196 lpfc_issue_init_vfi(vport); 5197 return; 5198 } 5199 break; 5200 5201 case LPFC_FDISC: 5202 case LPFC_FLOGI: 5203 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5204 /* Initial FLOGI timeout */ 5205 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5206 "0222 Initial %s timeout\n", 5207 vport->vpi ? "FDISC" : "FLOGI"); 5208 5209 /* Assume no Fabric and go on with discovery. 5210 * Check for outstanding ELS FLOGI to abort. 5211 */ 5212 5213 /* FLOGI failed, so just use loop map to make discovery list */ 5214 lpfc_disc_list_loopmap(vport); 5215 5216 /* Start discovery */ 5217 lpfc_disc_start(vport); 5218 break; 5219 5220 case LPFC_FABRIC_CFG_LINK: 5221 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5222 NameServer login */ 5223 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5224 "0223 Timeout while waiting for " 5225 "NameServer login\n"); 5226 /* Next look for NameServer ndlp */ 5227 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5228 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5229 lpfc_els_abort(phba, ndlp); 5230 5231 /* ReStart discovery */ 5232 goto restart_disc; 5233 5234 case LPFC_NS_QRY: 5235 /* Check for wait for NameServer Rsp timeout */ 5236 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5237 "0224 NameServer Query timeout " 5238 "Data: x%x x%x\n", 5239 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5240 5241 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5242 /* Try it one more time */ 5243 vport->fc_ns_retry++; 5244 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 5245 vport->fc_ns_retry, 0); 5246 if (rc == 0) 5247 break; 5248 } 5249 vport->fc_ns_retry = 0; 5250 5251 restart_disc: 5252 /* 5253 * Discovery is over. 5254 * set port_state to PORT_READY if SLI2. 5255 * cmpl_reg_vpi will set port_state to READY for SLI3. 5256 */ 5257 if (phba->sli_rev < LPFC_SLI_REV4) { 5258 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5259 lpfc_issue_reg_vpi(phba, vport); 5260 else { 5261 lpfc_issue_clear_la(phba, vport); 5262 vport->port_state = LPFC_VPORT_READY; 5263 } 5264 } 5265 5266 /* Setup and issue mailbox INITIALIZE LINK command */ 5267 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5268 if (!initlinkmbox) { 5269 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5270 "0206 Device Discovery " 5271 "completion error\n"); 5272 phba->link_state = LPFC_HBA_ERROR; 5273 break; 5274 } 5275 5276 lpfc_linkdown(phba); 5277 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5278 phba->cfg_link_speed); 5279 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5280 initlinkmbox->vport = vport; 5281 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5282 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5283 lpfc_set_loopback_flag(phba); 5284 if (rc == MBX_NOT_FINISHED) 5285 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5286 5287 break; 5288 5289 case LPFC_DISC_AUTH: 5290 /* Node Authentication timeout */ 5291 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5292 "0227 Node Authentication timeout\n"); 5293 lpfc_disc_flush_list(vport); 5294 5295 /* 5296 * set port_state to PORT_READY if SLI2. 5297 * cmpl_reg_vpi will set port_state to READY for SLI3. 5298 */ 5299 if (phba->sli_rev < LPFC_SLI_REV4) { 5300 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5301 lpfc_issue_reg_vpi(phba, vport); 5302 else { /* NPIV Not enabled */ 5303 lpfc_issue_clear_la(phba, vport); 5304 vport->port_state = LPFC_VPORT_READY; 5305 } 5306 } 5307 break; 5308 5309 case LPFC_VPORT_READY: 5310 if (vport->fc_flag & FC_RSCN_MODE) { 5311 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5312 "0231 RSCN timeout Data: x%x " 5313 "x%x\n", 5314 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5315 5316 /* Cleanup any outstanding ELS commands */ 5317 lpfc_els_flush_cmd(vport); 5318 5319 lpfc_els_flush_rscn(vport); 5320 lpfc_disc_flush_list(vport); 5321 } 5322 break; 5323 5324 default: 5325 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5326 "0273 Unexpected discovery timeout, " 5327 "vport State x%x\n", vport->port_state); 5328 break; 5329 } 5330 5331 switch (phba->link_state) { 5332 case LPFC_CLEAR_LA: 5333 /* CLEAR LA timeout */ 5334 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5335 "0228 CLEAR LA timeout\n"); 5336 clrlaerr = 1; 5337 break; 5338 5339 case LPFC_LINK_UP: 5340 lpfc_issue_clear_la(phba, vport); 5341 /* Drop thru */ 5342 case LPFC_LINK_UNKNOWN: 5343 case LPFC_WARM_START: 5344 case LPFC_INIT_START: 5345 case LPFC_INIT_MBX_CMDS: 5346 case LPFC_LINK_DOWN: 5347 case LPFC_HBA_ERROR: 5348 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5349 "0230 Unexpected timeout, hba link " 5350 "state x%x\n", phba->link_state); 5351 clrlaerr = 1; 5352 break; 5353 5354 case LPFC_HBA_READY: 5355 break; 5356 } 5357 5358 if (clrlaerr) { 5359 lpfc_disc_flush_list(vport); 5360 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5361 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5362 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; 5363 vport->port_state = LPFC_VPORT_READY; 5364 } 5365 5366 return; 5367 } 5368 5369 /* 5370 * This routine handles processing a NameServer REG_LOGIN mailbox 5371 * command upon completion. It is setup in the LPFC_MBOXQ 5372 * as the completion routine when the command is 5373 * handed off to the SLI layer. 5374 */ 5375 void 5376 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5377 { 5378 MAILBOX_t *mb = &pmb->u.mb; 5379 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5380 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5381 struct lpfc_vport *vport = pmb->vport; 5382 5383 pmb->context1 = NULL; 5384 pmb->context2 = NULL; 5385 5386 if (phba->sli_rev < LPFC_SLI_REV4) 5387 ndlp->nlp_rpi = mb->un.varWords[0]; 5388 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5389 ndlp->nlp_type |= NLP_FABRIC; 5390 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5391 5392 /* 5393 * Start issuing Fabric-Device Management Interface (FDMI) command to 5394 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if 5395 * fdmi-on=2 (supporting RPA/hostnmae) 5396 */ 5397 5398 if (vport->cfg_fdmi_on == 1) 5399 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA); 5400 else 5401 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60); 5402 5403 /* decrement the node reference count held for this callback 5404 * function. 5405 */ 5406 lpfc_nlp_put(ndlp); 5407 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5408 kfree(mp); 5409 mempool_free(pmb, phba->mbox_mem_pool); 5410 5411 return; 5412 } 5413 5414 static int 5415 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5416 { 5417 uint16_t *rpi = param; 5418 5419 /* check for active node */ 5420 if (!NLP_CHK_NODE_ACT(ndlp)) 5421 return 0; 5422 5423 return ndlp->nlp_rpi == *rpi; 5424 } 5425 5426 static int 5427 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5428 { 5429 return memcmp(&ndlp->nlp_portname, param, 5430 sizeof(ndlp->nlp_portname)) == 0; 5431 } 5432 5433 static struct lpfc_nodelist * 5434 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5435 { 5436 struct lpfc_nodelist *ndlp; 5437 5438 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5439 if (filter(ndlp, param)) { 5440 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5441 "3185 FIND node filter %p DID " 5442 "Data: x%p x%x x%x\n", 5443 filter, ndlp, ndlp->nlp_DID, 5444 ndlp->nlp_flag); 5445 return ndlp; 5446 } 5447 } 5448 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5449 "3186 FIND node filter %p NOT FOUND.\n", filter); 5450 return NULL; 5451 } 5452 5453 /* 5454 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5455 * returns the node list element pointer else return NULL. 5456 */ 5457 struct lpfc_nodelist * 5458 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5459 { 5460 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5461 } 5462 5463 /* 5464 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5465 * returns the node element list pointer else return NULL. 5466 */ 5467 struct lpfc_nodelist * 5468 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5469 { 5470 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5471 struct lpfc_nodelist *ndlp; 5472 5473 spin_lock_irq(shost->host_lock); 5474 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5475 spin_unlock_irq(shost->host_lock); 5476 return ndlp; 5477 } 5478 5479 /* 5480 * This routine looks up the ndlp lists for the given RPI. If the rpi 5481 * is found, the routine returns the node element list pointer else 5482 * return NULL. 5483 */ 5484 struct lpfc_nodelist * 5485 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5486 { 5487 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5488 struct lpfc_nodelist *ndlp; 5489 5490 spin_lock_irq(shost->host_lock); 5491 ndlp = __lpfc_findnode_rpi(vport, rpi); 5492 spin_unlock_irq(shost->host_lock); 5493 return ndlp; 5494 } 5495 5496 /** 5497 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5498 * @phba: pointer to lpfc hba data structure. 5499 * @vpi: the physical host virtual N_Port identifier. 5500 * 5501 * This routine finds a vport on a HBA (referred by @phba) through a 5502 * @vpi. The function walks the HBA's vport list and returns the address 5503 * of the vport with the matching @vpi. 5504 * 5505 * Return code 5506 * NULL - No vport with the matching @vpi found 5507 * Otherwise - Address to the vport with the matching @vpi. 5508 **/ 5509 struct lpfc_vport * 5510 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5511 { 5512 struct lpfc_vport *vport; 5513 unsigned long flags; 5514 int i = 0; 5515 5516 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5517 if (vpi > 0) { 5518 /* 5519 * Translate the physical vpi to the logical vpi. The 5520 * vport stores the logical vpi. 5521 */ 5522 for (i = 0; i < phba->max_vpi; i++) { 5523 if (vpi == phba->vpi_ids[i]) 5524 break; 5525 } 5526 5527 if (i >= phba->max_vpi) { 5528 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5529 "2936 Could not find Vport mapped " 5530 "to vpi %d\n", vpi); 5531 return NULL; 5532 } 5533 } 5534 5535 spin_lock_irqsave(&phba->hbalock, flags); 5536 list_for_each_entry(vport, &phba->port_list, listentry) { 5537 if (vport->vpi == i) { 5538 spin_unlock_irqrestore(&phba->hbalock, flags); 5539 return vport; 5540 } 5541 } 5542 spin_unlock_irqrestore(&phba->hbalock, flags); 5543 return NULL; 5544 } 5545 5546 void 5547 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5548 uint32_t did) 5549 { 5550 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5551 5552 lpfc_initialize_node(vport, ndlp, did); 5553 INIT_LIST_HEAD(&ndlp->nlp_listp); 5554 5555 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5556 "node init: did:x%x", 5557 ndlp->nlp_DID, 0, 0); 5558 5559 return; 5560 } 5561 5562 /* This routine releases all resources associated with a specifc NPort's ndlp 5563 * and mempool_free's the nodelist. 5564 */ 5565 static void 5566 lpfc_nlp_release(struct kref *kref) 5567 { 5568 struct lpfc_hba *phba; 5569 unsigned long flags; 5570 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5571 kref); 5572 5573 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5574 "node release: did:x%x flg:x%x type:x%x", 5575 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5576 5577 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5578 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5579 "usgmap:x%x refcnt:%d\n", 5580 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5581 atomic_read(&ndlp->kref.refcount)); 5582 5583 /* remove ndlp from action. */ 5584 lpfc_nlp_remove(ndlp->vport, ndlp); 5585 5586 /* clear the ndlp active flag for all release cases */ 5587 phba = ndlp->phba; 5588 spin_lock_irqsave(&phba->ndlp_lock, flags); 5589 NLP_CLR_NODE_ACT(ndlp); 5590 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5591 if (phba->sli_rev == LPFC_SLI_REV4) 5592 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 5593 5594 /* free ndlp memory for final ndlp release */ 5595 if (NLP_CHK_FREE_REQ(ndlp)) { 5596 kfree(ndlp->lat_data); 5597 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 5598 } 5599 } 5600 5601 /* This routine bumps the reference count for a ndlp structure to ensure 5602 * that one discovery thread won't free a ndlp while another discovery thread 5603 * is using it. 5604 */ 5605 struct lpfc_nodelist * 5606 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 5607 { 5608 struct lpfc_hba *phba; 5609 unsigned long flags; 5610 5611 if (ndlp) { 5612 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5613 "node get: did:x%x flg:x%x refcnt:x%x", 5614 ndlp->nlp_DID, ndlp->nlp_flag, 5615 atomic_read(&ndlp->kref.refcount)); 5616 /* The check of ndlp usage to prevent incrementing the 5617 * ndlp reference count that is in the process of being 5618 * released. 5619 */ 5620 phba = ndlp->phba; 5621 spin_lock_irqsave(&phba->ndlp_lock, flags); 5622 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 5623 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5624 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5625 "0276 lpfc_nlp_get: ndlp:x%p " 5626 "usgmap:x%x refcnt:%d\n", 5627 (void *)ndlp, ndlp->nlp_usg_map, 5628 atomic_read(&ndlp->kref.refcount)); 5629 return NULL; 5630 } else 5631 kref_get(&ndlp->kref); 5632 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5633 } 5634 return ndlp; 5635 } 5636 5637 /* This routine decrements the reference count for a ndlp structure. If the 5638 * count goes to 0, this indicates the the associated nodelist should be 5639 * freed. Returning 1 indicates the ndlp resource has been released; on the 5640 * other hand, returning 0 indicates the ndlp resource has not been released 5641 * yet. 5642 */ 5643 int 5644 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 5645 { 5646 struct lpfc_hba *phba; 5647 unsigned long flags; 5648 5649 if (!ndlp) 5650 return 1; 5651 5652 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5653 "node put: did:x%x flg:x%x refcnt:x%x", 5654 ndlp->nlp_DID, ndlp->nlp_flag, 5655 atomic_read(&ndlp->kref.refcount)); 5656 phba = ndlp->phba; 5657 spin_lock_irqsave(&phba->ndlp_lock, flags); 5658 /* Check the ndlp memory free acknowledge flag to avoid the 5659 * possible race condition that kref_put got invoked again 5660 * after previous one has done ndlp memory free. 5661 */ 5662 if (NLP_CHK_FREE_ACK(ndlp)) { 5663 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5664 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5665 "0274 lpfc_nlp_put: ndlp:x%p " 5666 "usgmap:x%x refcnt:%d\n", 5667 (void *)ndlp, ndlp->nlp_usg_map, 5668 atomic_read(&ndlp->kref.refcount)); 5669 return 1; 5670 } 5671 /* Check the ndlp inactivate log flag to avoid the possible 5672 * race condition that kref_put got invoked again after ndlp 5673 * is already in inactivating state. 5674 */ 5675 if (NLP_CHK_IACT_REQ(ndlp)) { 5676 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5677 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 5678 "0275 lpfc_nlp_put: ndlp:x%p " 5679 "usgmap:x%x refcnt:%d\n", 5680 (void *)ndlp, ndlp->nlp_usg_map, 5681 atomic_read(&ndlp->kref.refcount)); 5682 return 1; 5683 } 5684 /* For last put, mark the ndlp usage flags to make sure no 5685 * other kref_get and kref_put on the same ndlp shall get 5686 * in between the process when the final kref_put has been 5687 * invoked on this ndlp. 5688 */ 5689 if (atomic_read(&ndlp->kref.refcount) == 1) { 5690 /* Indicate ndlp is put to inactive state. */ 5691 NLP_SET_IACT_REQ(ndlp); 5692 /* Acknowledge ndlp memory free has been seen. */ 5693 if (NLP_CHK_FREE_REQ(ndlp)) 5694 NLP_SET_FREE_ACK(ndlp); 5695 } 5696 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 5697 /* Note, the kref_put returns 1 when decrementing a reference 5698 * count that was 1, it invokes the release callback function, 5699 * but it still left the reference count as 1 (not actually 5700 * performs the last decrementation). Otherwise, it actually 5701 * decrements the reference count and returns 0. 5702 */ 5703 return kref_put(&ndlp->kref, lpfc_nlp_release); 5704 } 5705 5706 /* This routine free's the specified nodelist if it is not in use 5707 * by any other discovery thread. This routine returns 1 if the 5708 * ndlp has been freed. A return value of 0 indicates the ndlp is 5709 * not yet been released. 5710 */ 5711 int 5712 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 5713 { 5714 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5715 "node not used: did:x%x flg:x%x refcnt:x%x", 5716 ndlp->nlp_DID, ndlp->nlp_flag, 5717 atomic_read(&ndlp->kref.refcount)); 5718 if (atomic_read(&ndlp->kref.refcount) == 1) 5719 if (lpfc_nlp_put(ndlp)) 5720 return 1; 5721 return 0; 5722 } 5723 5724 /** 5725 * lpfc_fcf_inuse - Check if FCF can be unregistered. 5726 * @phba: Pointer to hba context object. 5727 * 5728 * This function iterate through all FC nodes associated 5729 * will all vports to check if there is any node with 5730 * fc_rports associated with it. If there is an fc_rport 5731 * associated with the node, then the node is either in 5732 * discovered state or its devloss_timer is pending. 5733 */ 5734 static int 5735 lpfc_fcf_inuse(struct lpfc_hba *phba) 5736 { 5737 struct lpfc_vport **vports; 5738 int i, ret = 0; 5739 struct lpfc_nodelist *ndlp; 5740 struct Scsi_Host *shost; 5741 5742 vports = lpfc_create_vport_work_array(phba); 5743 5744 /* If driver cannot allocate memory, indicate fcf is in use */ 5745 if (!vports) 5746 return 1; 5747 5748 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5749 shost = lpfc_shost_from_vport(vports[i]); 5750 spin_lock_irq(shost->host_lock); 5751 /* 5752 * IF the CVL_RCVD bit is not set then we have sent the 5753 * flogi. 5754 * If dev_loss fires while we are waiting we do not want to 5755 * unreg the fcf. 5756 */ 5757 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 5758 spin_unlock_irq(shost->host_lock); 5759 ret = 1; 5760 goto out; 5761 } 5762 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 5763 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 5764 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 5765 ret = 1; 5766 spin_unlock_irq(shost->host_lock); 5767 goto out; 5768 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 5769 ret = 1; 5770 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 5771 "2624 RPI %x DID %x flag %x " 5772 "still logged in\n", 5773 ndlp->nlp_rpi, ndlp->nlp_DID, 5774 ndlp->nlp_flag); 5775 } 5776 } 5777 spin_unlock_irq(shost->host_lock); 5778 } 5779 out: 5780 lpfc_destroy_vport_work_array(phba, vports); 5781 return ret; 5782 } 5783 5784 /** 5785 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 5786 * @phba: Pointer to hba context object. 5787 * @mboxq: Pointer to mailbox object. 5788 * 5789 * This function frees memory associated with the mailbox command. 5790 */ 5791 void 5792 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5793 { 5794 struct lpfc_vport *vport = mboxq->vport; 5795 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5796 5797 if (mboxq->u.mb.mbxStatus) { 5798 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5799 "2555 UNREG_VFI mbxStatus error x%x " 5800 "HBA state x%x\n", 5801 mboxq->u.mb.mbxStatus, vport->port_state); 5802 } 5803 spin_lock_irq(shost->host_lock); 5804 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 5805 spin_unlock_irq(shost->host_lock); 5806 mempool_free(mboxq, phba->mbox_mem_pool); 5807 return; 5808 } 5809 5810 /** 5811 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 5812 * @phba: Pointer to hba context object. 5813 * @mboxq: Pointer to mailbox object. 5814 * 5815 * This function frees memory associated with the mailbox command. 5816 */ 5817 static void 5818 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 5819 { 5820 struct lpfc_vport *vport = mboxq->vport; 5821 5822 if (mboxq->u.mb.mbxStatus) { 5823 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5824 "2550 UNREG_FCFI mbxStatus error x%x " 5825 "HBA state x%x\n", 5826 mboxq->u.mb.mbxStatus, vport->port_state); 5827 } 5828 mempool_free(mboxq, phba->mbox_mem_pool); 5829 return; 5830 } 5831 5832 /** 5833 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 5834 * @phba: Pointer to hba context object. 5835 * 5836 * This function prepare the HBA for unregistering the currently registered 5837 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 5838 * VFIs. 5839 */ 5840 int 5841 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 5842 { 5843 struct lpfc_vport **vports; 5844 struct lpfc_nodelist *ndlp; 5845 struct Scsi_Host *shost; 5846 int i, rc; 5847 5848 /* Unregister RPIs */ 5849 if (lpfc_fcf_inuse(phba)) 5850 lpfc_unreg_hba_rpis(phba); 5851 5852 /* At this point, all discovery is aborted */ 5853 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 5854 5855 /* Unregister VPIs */ 5856 vports = lpfc_create_vport_work_array(phba); 5857 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 5858 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 5859 /* Stop FLOGI/FDISC retries */ 5860 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 5861 if (ndlp) 5862 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 5863 lpfc_cleanup_pending_mbox(vports[i]); 5864 if (phba->sli_rev == LPFC_SLI_REV4) 5865 lpfc_sli4_unreg_all_rpis(vports[i]); 5866 lpfc_mbx_unreg_vpi(vports[i]); 5867 shost = lpfc_shost_from_vport(vports[i]); 5868 spin_lock_irq(shost->host_lock); 5869 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 5870 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 5871 spin_unlock_irq(shost->host_lock); 5872 } 5873 lpfc_destroy_vport_work_array(phba, vports); 5874 5875 /* Cleanup any outstanding ELS commands */ 5876 lpfc_els_flush_all_cmd(phba); 5877 5878 /* Unregister the physical port VFI */ 5879 rc = lpfc_issue_unreg_vfi(phba->pport); 5880 return rc; 5881 } 5882 5883 /** 5884 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 5885 * @phba: Pointer to hba context object. 5886 * 5887 * This function issues synchronous unregister FCF mailbox command to HBA to 5888 * unregister the currently registered FCF record. The driver does not reset 5889 * the driver FCF usage state flags. 5890 * 5891 * Return 0 if successfully issued, none-zero otherwise. 5892 */ 5893 int 5894 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 5895 { 5896 LPFC_MBOXQ_t *mbox; 5897 int rc; 5898 5899 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5900 if (!mbox) { 5901 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5902 "2551 UNREG_FCFI mbox allocation failed" 5903 "HBA state x%x\n", phba->pport->port_state); 5904 return -ENOMEM; 5905 } 5906 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 5907 mbox->vport = phba->pport; 5908 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 5909 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5910 5911 if (rc == MBX_NOT_FINISHED) { 5912 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5913 "2552 Unregister FCFI command failed rc x%x " 5914 "HBA state x%x\n", 5915 rc, phba->pport->port_state); 5916 return -EINVAL; 5917 } 5918 return 0; 5919 } 5920 5921 /** 5922 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 5923 * @phba: Pointer to hba context object. 5924 * 5925 * This function unregisters the currently reigstered FCF. This function 5926 * also tries to find another FCF for discovery by rescan the HBA FCF table. 5927 */ 5928 void 5929 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 5930 { 5931 int rc; 5932 5933 /* Preparation for unregistering fcf */ 5934 rc = lpfc_unregister_fcf_prep(phba); 5935 if (rc) { 5936 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 5937 "2748 Failed to prepare for unregistering " 5938 "HBA's FCF record: rc=%d\n", rc); 5939 return; 5940 } 5941 5942 /* Now, unregister FCF record and reset HBA FCF state */ 5943 rc = lpfc_sli4_unregister_fcf(phba); 5944 if (rc) 5945 return; 5946 /* Reset HBA FCF states after successful unregister FCF */ 5947 phba->fcf.fcf_flag = 0; 5948 phba->fcf.current_rec.flag = 0; 5949 5950 /* 5951 * If driver is not unloading, check if there is any other 5952 * FCF record that can be used for discovery. 5953 */ 5954 if ((phba->pport->load_flag & FC_UNLOADING) || 5955 (phba->link_state < LPFC_LINK_UP)) 5956 return; 5957 5958 /* This is considered as the initial FCF discovery scan */ 5959 spin_lock_irq(&phba->hbalock); 5960 phba->fcf.fcf_flag |= FCF_INIT_DISC; 5961 spin_unlock_irq(&phba->hbalock); 5962 5963 /* Reset FCF roundrobin bmask for new discovery */ 5964 lpfc_sli4_clear_fcf_rr_bmask(phba); 5965 5966 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5967 5968 if (rc) { 5969 spin_lock_irq(&phba->hbalock); 5970 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 5971 spin_unlock_irq(&phba->hbalock); 5972 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 5973 "2553 lpfc_unregister_unused_fcf failed " 5974 "to read FCF record HBA state x%x\n", 5975 phba->pport->port_state); 5976 } 5977 } 5978 5979 /** 5980 * lpfc_unregister_fcf - Unregister the currently registered fcf record 5981 * @phba: Pointer to hba context object. 5982 * 5983 * This function just unregisters the currently reigstered FCF. It does not 5984 * try to find another FCF for discovery. 5985 */ 5986 void 5987 lpfc_unregister_fcf(struct lpfc_hba *phba) 5988 { 5989 int rc; 5990 5991 /* Preparation for unregistering fcf */ 5992 rc = lpfc_unregister_fcf_prep(phba); 5993 if (rc) { 5994 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 5995 "2749 Failed to prepare for unregistering " 5996 "HBA's FCF record: rc=%d\n", rc); 5997 return; 5998 } 5999 6000 /* Now, unregister FCF record and reset HBA FCF state */ 6001 rc = lpfc_sli4_unregister_fcf(phba); 6002 if (rc) 6003 return; 6004 /* Set proper HBA FCF states after successful unregister FCF */ 6005 spin_lock_irq(&phba->hbalock); 6006 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6007 spin_unlock_irq(&phba->hbalock); 6008 } 6009 6010 /** 6011 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6012 * @phba: Pointer to hba context object. 6013 * 6014 * This function check if there are any connected remote port for the FCF and 6015 * if all the devices are disconnected, this function unregister FCFI. 6016 * This function also tries to use another FCF for discovery. 6017 */ 6018 void 6019 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6020 { 6021 /* 6022 * If HBA is not running in FIP mode, if HBA does not support 6023 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6024 * registered, do nothing. 6025 */ 6026 spin_lock_irq(&phba->hbalock); 6027 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6028 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6029 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6030 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6031 (phba->pport->port_state == LPFC_FLOGI)) { 6032 spin_unlock_irq(&phba->hbalock); 6033 return; 6034 } 6035 spin_unlock_irq(&phba->hbalock); 6036 6037 if (lpfc_fcf_inuse(phba)) 6038 return; 6039 6040 lpfc_unregister_fcf_rescan(phba); 6041 } 6042 6043 /** 6044 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6045 * @phba: Pointer to hba context object. 6046 * @buff: Buffer containing the FCF connection table as in the config 6047 * region. 6048 * This function create driver data structure for the FCF connection 6049 * record table read from config region 23. 6050 */ 6051 static void 6052 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6053 uint8_t *buff) 6054 { 6055 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6056 struct lpfc_fcf_conn_hdr *conn_hdr; 6057 struct lpfc_fcf_conn_rec *conn_rec; 6058 uint32_t record_count; 6059 int i; 6060 6061 /* Free the current connect table */ 6062 list_for_each_entry_safe(conn_entry, next_conn_entry, 6063 &phba->fcf_conn_rec_list, list) { 6064 list_del_init(&conn_entry->list); 6065 kfree(conn_entry); 6066 } 6067 6068 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6069 record_count = conn_hdr->length * sizeof(uint32_t)/ 6070 sizeof(struct lpfc_fcf_conn_rec); 6071 6072 conn_rec = (struct lpfc_fcf_conn_rec *) 6073 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6074 6075 for (i = 0; i < record_count; i++) { 6076 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6077 continue; 6078 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6079 GFP_KERNEL); 6080 if (!conn_entry) { 6081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6082 "2566 Failed to allocate connection" 6083 " table entry\n"); 6084 return; 6085 } 6086 6087 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6088 sizeof(struct lpfc_fcf_conn_rec)); 6089 conn_entry->conn_rec.vlan_tag = 6090 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF; 6091 conn_entry->conn_rec.flags = 6092 le16_to_cpu(conn_entry->conn_rec.flags); 6093 list_add_tail(&conn_entry->list, 6094 &phba->fcf_conn_rec_list); 6095 } 6096 } 6097 6098 /** 6099 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6100 * @phba: Pointer to hba context object. 6101 * @buff: Buffer containing the FCoE parameter data structure. 6102 * 6103 * This function update driver data structure with config 6104 * parameters read from config region 23. 6105 */ 6106 static void 6107 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6108 uint8_t *buff) 6109 { 6110 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6111 struct lpfc_fcoe_params *fcoe_param; 6112 6113 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6114 buff; 6115 fcoe_param = (struct lpfc_fcoe_params *) 6116 (buff + sizeof(struct lpfc_fip_param_hdr)); 6117 6118 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6119 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6120 return; 6121 6122 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6123 phba->valid_vlan = 1; 6124 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6125 0xFFF; 6126 } 6127 6128 phba->fc_map[0] = fcoe_param->fc_map[0]; 6129 phba->fc_map[1] = fcoe_param->fc_map[1]; 6130 phba->fc_map[2] = fcoe_param->fc_map[2]; 6131 return; 6132 } 6133 6134 /** 6135 * lpfc_get_rec_conf23 - Get a record type in config region data. 6136 * @buff: Buffer containing config region 23 data. 6137 * @size: Size of the data buffer. 6138 * @rec_type: Record type to be searched. 6139 * 6140 * This function searches config region data to find the beginning 6141 * of the record specified by record_type. If record found, this 6142 * function return pointer to the record else return NULL. 6143 */ 6144 static uint8_t * 6145 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6146 { 6147 uint32_t offset = 0, rec_length; 6148 6149 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6150 (size < sizeof(uint32_t))) 6151 return NULL; 6152 6153 rec_length = buff[offset + 1]; 6154 6155 /* 6156 * One TLV record has one word header and number of data words 6157 * specified in the rec_length field of the record header. 6158 */ 6159 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6160 <= size) { 6161 if (buff[offset] == rec_type) 6162 return &buff[offset]; 6163 6164 if (buff[offset] == LPFC_REGION23_LAST_REC) 6165 return NULL; 6166 6167 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6168 rec_length = buff[offset + 1]; 6169 } 6170 return NULL; 6171 } 6172 6173 /** 6174 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6175 * @phba: Pointer to lpfc_hba data structure. 6176 * @buff: Buffer containing config region 23 data. 6177 * @size: Size of the data buffer. 6178 * 6179 * This function parses the FCoE config parameters in config region 23 and 6180 * populate driver data structure with the parameters. 6181 */ 6182 void 6183 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6184 uint8_t *buff, 6185 uint32_t size) 6186 { 6187 uint32_t offset = 0, rec_length; 6188 uint8_t *rec_ptr; 6189 6190 /* 6191 * If data size is less than 2 words signature and version cannot be 6192 * verified. 6193 */ 6194 if (size < 2*sizeof(uint32_t)) 6195 return; 6196 6197 /* Check the region signature first */ 6198 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6200 "2567 Config region 23 has bad signature\n"); 6201 return; 6202 } 6203 6204 offset += 4; 6205 6206 /* Check the data structure version */ 6207 if (buff[offset] != LPFC_REGION23_VERSION) { 6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6209 "2568 Config region 23 has bad version\n"); 6210 return; 6211 } 6212 offset += 4; 6213 6214 rec_length = buff[offset + 1]; 6215 6216 /* Read FCoE param record */ 6217 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6218 size - offset, FCOE_PARAM_TYPE); 6219 if (rec_ptr) 6220 lpfc_read_fcoe_param(phba, rec_ptr); 6221 6222 /* Read FCF connection table */ 6223 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6224 size - offset, FCOE_CONN_TBL_TYPE); 6225 if (rec_ptr) 6226 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6227 6228 } 6229