1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 #include <scsi/fc/fc_fs.h> 37 38 #include <linux/nvme-fc-driver.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_crtn.h" 51 #include "lpfc_vport.h" 52 #include "lpfc_debugfs.h" 53 54 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 55 static uint8_t lpfcAlpaArray[] = { 56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 69 }; 70 71 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 72 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 74 static int lpfc_fcf_inuse(struct lpfc_hba *); 75 76 void 77 lpfc_terminate_rport_io(struct fc_rport *rport) 78 { 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105 } 106 107 /* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110 void 111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112 { 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 122 rdata = rport->dd_data; 123 ndlp = rdata->pnode; 124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 125 return; 126 127 vport = ndlp->vport; 128 phba = vport->phba; 129 130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 131 "rport devlosscb: sid:x%x did:x%x flg:x%x", 132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 133 134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 137 138 /* Don't defer this if we are in the process of deleting the vport 139 * or unloading the driver. The unload will cleanup the node 140 * appropriately we just need to cleanup the ndlp rport info here. 141 */ 142 if (vport->load_flag & FC_UNLOADING) { 143 put_node = rdata->pnode != NULL; 144 put_rport = ndlp->rport != NULL; 145 rdata->pnode = NULL; 146 ndlp->rport = NULL; 147 if (put_node) 148 lpfc_nlp_put(ndlp); 149 if (put_rport) 150 put_device(&rport->dev); 151 return; 152 } 153 154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 155 return; 156 157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 159 "6789 rport name %llx != node port name %llx", 160 rport->port_name, 161 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 162 163 evtp = &ndlp->dev_loss_evt; 164 165 if (!list_empty(&evtp->evt_listp)) { 166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 167 "6790 rport name %llx dev_loss_evt pending", 168 rport->port_name); 169 return; 170 } 171 172 shost = lpfc_shost_from_vport(vport); 173 spin_lock_irq(shost->host_lock); 174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 175 spin_unlock_irq(shost->host_lock); 176 177 /* We need to hold the node by incrementing the reference 178 * count until this queued work is done 179 */ 180 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 181 182 spin_lock_irq(&phba->hbalock); 183 if (evtp->evt_arg1) { 184 evtp->evt = LPFC_EVT_DEV_LOSS; 185 list_add_tail(&evtp->evt_listp, &phba->work_list); 186 lpfc_worker_wake_up(phba); 187 } 188 spin_unlock_irq(&phba->hbalock); 189 190 return; 191 } 192 193 /** 194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 195 * @ndlp: Pointer to remote node object. 196 * 197 * This function is called from the worker thread when devloss timeout timer 198 * expires. For SLI4 host, this routine shall return 1 when at lease one 199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 200 * routine shall return 0 when there is no remote node is still in use of FCF 201 * when devloss timeout happened to this @ndlp. 202 **/ 203 static int 204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 205 { 206 struct lpfc_rport_data *rdata; 207 struct fc_rport *rport; 208 struct lpfc_vport *vport; 209 struct lpfc_hba *phba; 210 struct Scsi_Host *shost; 211 uint8_t *name; 212 int put_node; 213 int warn_on = 0; 214 int fcf_inuse = 0; 215 216 rport = ndlp->rport; 217 vport = ndlp->vport; 218 shost = lpfc_shost_from_vport(vport); 219 220 spin_lock_irq(shost->host_lock); 221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 222 spin_unlock_irq(shost->host_lock); 223 224 if (!rport) 225 return fcf_inuse; 226 227 name = (uint8_t *) &ndlp->nlp_portname; 228 phba = vport->phba; 229 230 if (phba->sli_rev == LPFC_SLI_REV4) 231 fcf_inuse = lpfc_fcf_inuse(phba); 232 233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 234 "rport devlosstmo:did:x%x type:x%x id:x%x", 235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 236 237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 240 241 /* 242 * lpfc_nlp_remove if reached with dangling rport drops the 243 * reference. To make sure that does not happen clear rport 244 * pointer in ndlp before lpfc_nlp_put. 245 */ 246 rdata = rport->dd_data; 247 248 /* Don't defer this if we are in the process of deleting the vport 249 * or unloading the driver. The unload will cleanup the node 250 * appropriately we just need to cleanup the ndlp rport info here. 251 */ 252 if (vport->load_flag & FC_UNLOADING) { 253 if (ndlp->nlp_sid != NLP_NO_SID) { 254 /* flush the target */ 255 lpfc_sli_abort_iocb(vport, 256 &phba->sli.sli3_ring[LPFC_FCP_RING], 257 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 258 } 259 put_node = rdata->pnode != NULL; 260 rdata->pnode = NULL; 261 ndlp->rport = NULL; 262 if (put_node) 263 lpfc_nlp_put(ndlp); 264 put_device(&rport->dev); 265 266 return fcf_inuse; 267 } 268 269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 271 "0284 Devloss timeout Ignored on " 272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 273 "NPort x%x\n", 274 *name, *(name+1), *(name+2), *(name+3), 275 *(name+4), *(name+5), *(name+6), *(name+7), 276 ndlp->nlp_DID); 277 return fcf_inuse; 278 } 279 280 put_node = rdata->pnode != NULL; 281 rdata->pnode = NULL; 282 ndlp->rport = NULL; 283 if (put_node) 284 lpfc_nlp_put(ndlp); 285 put_device(&rport->dev); 286 287 if (ndlp->nlp_type & NLP_FABRIC) 288 return fcf_inuse; 289 290 if (ndlp->nlp_sid != NLP_NO_SID) { 291 warn_on = 1; 292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 293 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 294 } 295 296 if (warn_on) { 297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 298 "0203 Devloss timeout on " 299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 300 "NPort x%06x Data: x%x x%x x%x\n", 301 *name, *(name+1), *(name+2), *(name+3), 302 *(name+4), *(name+5), *(name+6), *(name+7), 303 ndlp->nlp_DID, ndlp->nlp_flag, 304 ndlp->nlp_state, ndlp->nlp_rpi); 305 } else { 306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 307 "0204 Devloss timeout on " 308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 309 "NPort x%06x Data: x%x x%x x%x\n", 310 *name, *(name+1), *(name+2), *(name+3), 311 *(name+4), *(name+5), *(name+6), *(name+7), 312 ndlp->nlp_DID, ndlp->nlp_flag, 313 ndlp->nlp_state, ndlp->nlp_rpi); 314 } 315 316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 322 323 return fcf_inuse; 324 } 325 326 /** 327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 328 * @phba: Pointer to hba context object. 329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 330 * @nlp_did: remote node identifer with devloss timeout. 331 * 332 * This function is called from the worker thread after invoking devloss 333 * timeout handler and releasing the reference count for the ndlp with 334 * which the devloss timeout was handled for SLI4 host. For the devloss 335 * timeout of the last remote node which had been in use of FCF, when this 336 * routine is invoked, it shall be guaranteed that none of the remote are 337 * in-use of FCF. When devloss timeout to the last remote using the FCF, 338 * if the FIP engine is neither in FCF table scan process nor roundrobin 339 * failover process, the in-use FCF shall be unregistered. If the FIP 340 * engine is in FCF discovery process, the devloss timeout state shall 341 * be set for either the FCF table scan process or roundrobin failover 342 * process to unregister the in-use FCF. 343 **/ 344 static void 345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 346 uint32_t nlp_did) 347 { 348 /* If devloss timeout happened to a remote node when FCF had no 349 * longer been in-use, do nothing. 350 */ 351 if (!fcf_inuse) 352 return; 353 354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 355 spin_lock_irq(&phba->hbalock); 356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 357 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 358 spin_unlock_irq(&phba->hbalock); 359 return; 360 } 361 phba->hba_flag |= HBA_DEVLOSS_TMO; 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2847 Last remote node (x%x) using " 364 "FCF devloss tmo\n", nlp_did); 365 } 366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 367 spin_unlock_irq(&phba->hbalock); 368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 369 "2868 Devloss tmo to FCF rediscovery " 370 "in progress\n"); 371 return; 372 } 373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 374 spin_unlock_irq(&phba->hbalock); 375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 376 "2869 Devloss tmo to idle FIP engine, " 377 "unreg in-use FCF and rescan.\n"); 378 /* Unregister in-use FCF and rescan */ 379 lpfc_unregister_fcf_rescan(phba); 380 return; 381 } 382 spin_unlock_irq(&phba->hbalock); 383 if (phba->hba_flag & FCF_TS_INPROG) 384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 385 "2870 FCF table scan in progress\n"); 386 if (phba->hba_flag & FCF_RR_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2871 FLOGI roundrobin FCF failover " 389 "in progress\n"); 390 } 391 lpfc_unregister_unused_fcf(phba); 392 } 393 394 /** 395 * lpfc_alloc_fast_evt - Allocates data structure for posting event 396 * @phba: Pointer to hba context object. 397 * 398 * This function is called from the functions which need to post 399 * events from interrupt context. This function allocates data 400 * structure required for posting event. It also keeps track of 401 * number of events pending and prevent event storm when there are 402 * too many events. 403 **/ 404 struct lpfc_fast_path_event * 405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 406 struct lpfc_fast_path_event *ret; 407 408 /* If there are lot of fast event do not exhaust memory due to this */ 409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 410 return NULL; 411 412 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 413 GFP_ATOMIC); 414 if (ret) { 415 atomic_inc(&phba->fast_event_count); 416 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 418 } 419 return ret; 420 } 421 422 /** 423 * lpfc_free_fast_evt - Frees event data structure 424 * @phba: Pointer to hba context object. 425 * @evt: Event object which need to be freed. 426 * 427 * This function frees the data structure required for posting 428 * events. 429 **/ 430 void 431 lpfc_free_fast_evt(struct lpfc_hba *phba, 432 struct lpfc_fast_path_event *evt) { 433 434 atomic_dec(&phba->fast_event_count); 435 kfree(evt); 436 } 437 438 /** 439 * lpfc_send_fastpath_evt - Posts events generated from fast path 440 * @phba: Pointer to hba context object. 441 * @evtp: Event data structure. 442 * 443 * This function is called from worker thread, when the interrupt 444 * context need to post an event. This function posts the event 445 * to fc transport netlink interface. 446 **/ 447 static void 448 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 449 struct lpfc_work_evt *evtp) 450 { 451 unsigned long evt_category, evt_sub_category; 452 struct lpfc_fast_path_event *fast_evt_data; 453 char *evt_data; 454 uint32_t evt_data_size; 455 struct Scsi_Host *shost; 456 457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 458 work_evt); 459 460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 461 evt_sub_category = (unsigned long) fast_evt_data->un. 462 fabric_evt.subcategory; 463 shost = lpfc_shost_from_vport(fast_evt_data->vport); 464 if (evt_category == FC_REG_FABRIC_EVENT) { 465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 466 evt_data = (char *) &fast_evt_data->un.read_check_error; 467 evt_data_size = sizeof(fast_evt_data->un. 468 read_check_error); 469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 471 evt_data = (char *) &fast_evt_data->un.fabric_evt; 472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 473 } else { 474 lpfc_free_fast_evt(phba, fast_evt_data); 475 return; 476 } 477 } else if (evt_category == FC_REG_SCSI_EVENT) { 478 switch (evt_sub_category) { 479 case LPFC_EVENT_QFULL: 480 case LPFC_EVENT_DEVBSY: 481 evt_data = (char *) &fast_evt_data->un.scsi_evt; 482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 483 break; 484 case LPFC_EVENT_CHECK_COND: 485 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 check_cond_evt); 488 break; 489 case LPFC_EVENT_VARQUEDEPTH: 490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 491 evt_data_size = sizeof(fast_evt_data->un. 492 queue_depth_evt); 493 break; 494 default: 495 lpfc_free_fast_evt(phba, fast_evt_data); 496 return; 497 } 498 } else { 499 lpfc_free_fast_evt(phba, fast_evt_data); 500 return; 501 } 502 503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 504 fc_host_post_vendor_event(shost, 505 fc_get_event_number(), 506 evt_data_size, 507 evt_data, 508 LPFC_NL_VENDOR_ID); 509 510 lpfc_free_fast_evt(phba, fast_evt_data); 511 return; 512 } 513 514 static void 515 lpfc_work_list_done(struct lpfc_hba *phba) 516 { 517 struct lpfc_work_evt *evtp = NULL; 518 struct lpfc_nodelist *ndlp; 519 int free_evt; 520 int fcf_inuse; 521 uint32_t nlp_did; 522 523 spin_lock_irq(&phba->hbalock); 524 while (!list_empty(&phba->work_list)) { 525 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 526 evt_listp); 527 spin_unlock_irq(&phba->hbalock); 528 free_evt = 1; 529 switch (evtp->evt) { 530 case LPFC_EVT_ELS_RETRY: 531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 532 lpfc_els_retry_delay_handler(ndlp); 533 free_evt = 0; /* evt is part of ndlp */ 534 /* decrement the node reference count held 535 * for this queued work 536 */ 537 lpfc_nlp_put(ndlp); 538 break; 539 case LPFC_EVT_DEV_LOSS: 540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 542 free_evt = 0; 543 /* decrement the node reference count held for 544 * this queued work 545 */ 546 nlp_did = ndlp->nlp_DID; 547 lpfc_nlp_put(ndlp); 548 if (phba->sli_rev == LPFC_SLI_REV4) 549 lpfc_sli4_post_dev_loss_tmo_handler(phba, 550 fcf_inuse, 551 nlp_did); 552 break; 553 case LPFC_EVT_ONLINE: 554 if (phba->link_state < LPFC_LINK_DOWN) 555 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 556 else 557 *(int *) (evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE_PREP: 561 if (phba->link_state >= LPFC_LINK_DOWN) 562 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 563 *(int *)(evtp->evt_arg1) = 0; 564 complete((struct completion *)(evtp->evt_arg2)); 565 break; 566 case LPFC_EVT_OFFLINE: 567 lpfc_offline(phba); 568 lpfc_sli_brdrestart(phba); 569 *(int *)(evtp->evt_arg1) = 570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 571 lpfc_unblock_mgmt_io(phba); 572 complete((struct completion *)(evtp->evt_arg2)); 573 break; 574 case LPFC_EVT_WARM_START: 575 lpfc_offline(phba); 576 lpfc_reset_barrier(phba); 577 lpfc_sli_brdreset(phba); 578 lpfc_hba_down_post(phba); 579 *(int *)(evtp->evt_arg1) = 580 lpfc_sli_brdready(phba, HS_MBRDY); 581 lpfc_unblock_mgmt_io(phba); 582 complete((struct completion *)(evtp->evt_arg2)); 583 break; 584 case LPFC_EVT_KILL: 585 lpfc_offline(phba); 586 *(int *)(evtp->evt_arg1) 587 = (phba->pport->stopped) 588 ? 0 : lpfc_sli_brdkill(phba); 589 lpfc_unblock_mgmt_io(phba); 590 complete((struct completion *)(evtp->evt_arg2)); 591 break; 592 case LPFC_EVT_FASTPATH_MGMT_EVT: 593 lpfc_send_fastpath_evt(phba, evtp); 594 free_evt = 0; 595 break; 596 case LPFC_EVT_RESET_HBA: 597 if (!(phba->pport->load_flag & FC_UNLOADING)) 598 lpfc_reset_hba(phba); 599 break; 600 } 601 if (free_evt) 602 kfree(evtp); 603 spin_lock_irq(&phba->hbalock); 604 } 605 spin_unlock_irq(&phba->hbalock); 606 607 } 608 609 static void 610 lpfc_work_done(struct lpfc_hba *phba) 611 { 612 struct lpfc_sli_ring *pring; 613 uint32_t ha_copy, status, control, work_port_events; 614 struct lpfc_vport **vports; 615 struct lpfc_vport *vport; 616 int i; 617 618 spin_lock_irq(&phba->hbalock); 619 ha_copy = phba->work_ha; 620 phba->work_ha = 0; 621 spin_unlock_irq(&phba->hbalock); 622 623 /* First, try to post the next mailbox command to SLI4 device */ 624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 625 lpfc_sli4_post_async_mbox(phba); 626 627 if (ha_copy & HA_ERATT) 628 /* Handle the error attention event */ 629 lpfc_handle_eratt(phba); 630 631 if (ha_copy & HA_MBATT) 632 lpfc_sli_handle_mb_event(phba); 633 634 if (ha_copy & HA_LATT) 635 lpfc_handle_latt(phba); 636 637 /* Process SLI4 events */ 638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 639 if (phba->hba_flag & HBA_RRQ_ACTIVE) 640 lpfc_handle_rrq_active(phba); 641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 642 lpfc_sli4_fcp_xri_abort_event_proc(phba); 643 if (phba->hba_flag & NVME_XRI_ABORT_EVENT) 644 lpfc_sli4_nvme_xri_abort_event_proc(phba); 645 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 646 lpfc_sli4_els_xri_abort_event_proc(phba); 647 if (phba->hba_flag & ASYNC_EVENT) 648 lpfc_sli4_async_event_proc(phba); 649 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 650 spin_lock_irq(&phba->hbalock); 651 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 652 spin_unlock_irq(&phba->hbalock); 653 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 654 } 655 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 656 lpfc_sli4_fcf_redisc_event_proc(phba); 657 } 658 659 vports = lpfc_create_vport_work_array(phba); 660 if (vports != NULL) 661 for (i = 0; i <= phba->max_vports; i++) { 662 /* 663 * We could have no vports in array if unloading, so if 664 * this happens then just use the pport 665 */ 666 if (vports[i] == NULL && i == 0) 667 vport = phba->pport; 668 else 669 vport = vports[i]; 670 if (vport == NULL) 671 break; 672 spin_lock_irq(&vport->work_port_lock); 673 work_port_events = vport->work_port_events; 674 vport->work_port_events &= ~work_port_events; 675 spin_unlock_irq(&vport->work_port_lock); 676 if (work_port_events & WORKER_DISC_TMO) 677 lpfc_disc_timeout_handler(vport); 678 if (work_port_events & WORKER_ELS_TMO) 679 lpfc_els_timeout_handler(vport); 680 if (work_port_events & WORKER_HB_TMO) 681 lpfc_hb_timeout_handler(phba); 682 if (work_port_events & WORKER_MBOX_TMO) 683 lpfc_mbox_timeout_handler(phba); 684 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 685 lpfc_unblock_fabric_iocbs(phba); 686 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 687 lpfc_ramp_down_queue_handler(phba); 688 if (work_port_events & WORKER_DELAYED_DISC_TMO) 689 lpfc_delayed_disc_timeout_handler(vport); 690 } 691 lpfc_destroy_vport_work_array(phba, vports); 692 693 pring = lpfc_phba_elsring(phba); 694 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 695 status >>= (4*LPFC_ELS_RING); 696 if (pring && (status & HA_RXMASK || 697 pring->flag & LPFC_DEFERRED_RING_EVENT || 698 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 699 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 700 pring->flag |= LPFC_DEFERRED_RING_EVENT; 701 /* Set the lpfc data pending flag */ 702 set_bit(LPFC_DATA_READY, &phba->data_flags); 703 } else { 704 if (phba->link_state >= LPFC_LINK_UP || 705 phba->link_flag & LS_MDS_LOOPBACK) { 706 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 707 lpfc_sli_handle_slow_ring_event(phba, pring, 708 (status & 709 HA_RXMASK)); 710 } 711 } 712 if ((phba->sli_rev == LPFC_SLI_REV4) && 713 (!list_empty(&pring->txq))) 714 lpfc_drain_txq(phba); 715 /* 716 * Turn on Ring interrupts 717 */ 718 if (phba->sli_rev <= LPFC_SLI_REV3) { 719 spin_lock_irq(&phba->hbalock); 720 control = readl(phba->HCregaddr); 721 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 722 lpfc_debugfs_slow_ring_trc(phba, 723 "WRK Enable ring: cntl:x%x hacopy:x%x", 724 control, ha_copy, 0); 725 726 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 727 writel(control, phba->HCregaddr); 728 readl(phba->HCregaddr); /* flush */ 729 } else { 730 lpfc_debugfs_slow_ring_trc(phba, 731 "WRK Ring ok: cntl:x%x hacopy:x%x", 732 control, ha_copy, 0); 733 } 734 spin_unlock_irq(&phba->hbalock); 735 } 736 } 737 lpfc_work_list_done(phba); 738 } 739 740 int 741 lpfc_do_work(void *p) 742 { 743 struct lpfc_hba *phba = p; 744 int rc; 745 746 set_user_nice(current, MIN_NICE); 747 current->flags |= PF_NOFREEZE; 748 phba->data_flags = 0; 749 750 while (!kthread_should_stop()) { 751 /* wait and check worker queue activities */ 752 rc = wait_event_interruptible(phba->work_waitq, 753 (test_and_clear_bit(LPFC_DATA_READY, 754 &phba->data_flags) 755 || kthread_should_stop())); 756 /* Signal wakeup shall terminate the worker thread */ 757 if (rc) { 758 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 759 "0433 Wakeup on signal: rc=x%x\n", rc); 760 break; 761 } 762 763 /* Attend pending lpfc data processing */ 764 lpfc_work_done(phba); 765 } 766 phba->worker_thread = NULL; 767 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 768 "0432 Worker thread stopped.\n"); 769 return 0; 770 } 771 772 /* 773 * This is only called to handle FC worker events. Since this a rare 774 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 775 * embedding it in the IOCB. 776 */ 777 int 778 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 779 uint32_t evt) 780 { 781 struct lpfc_work_evt *evtp; 782 unsigned long flags; 783 784 /* 785 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 786 * be queued to worker thread for processing 787 */ 788 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 789 if (!evtp) 790 return 0; 791 792 evtp->evt_arg1 = arg1; 793 evtp->evt_arg2 = arg2; 794 evtp->evt = evt; 795 796 spin_lock_irqsave(&phba->hbalock, flags); 797 list_add_tail(&evtp->evt_listp, &phba->work_list); 798 spin_unlock_irqrestore(&phba->hbalock, flags); 799 800 lpfc_worker_wake_up(phba); 801 802 return 1; 803 } 804 805 void 806 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 807 { 808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 809 struct lpfc_hba *phba = vport->phba; 810 struct lpfc_nodelist *ndlp, *next_ndlp; 811 812 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 813 if (!NLP_CHK_NODE_ACT(ndlp)) 814 continue; 815 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 816 continue; 817 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 818 ((vport->port_type == LPFC_NPIV_PORT) && 819 (ndlp->nlp_DID == NameServer_DID))) 820 lpfc_unreg_rpi(vport, ndlp); 821 822 /* Leave Fabric nodes alone on link down */ 823 if ((phba->sli_rev < LPFC_SLI_REV4) && 824 (!remove && ndlp->nlp_type & NLP_FABRIC)) 825 continue; 826 lpfc_disc_state_machine(vport, ndlp, NULL, 827 remove 828 ? NLP_EVT_DEVICE_RM 829 : NLP_EVT_DEVICE_RECOVERY); 830 } 831 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 832 if (phba->sli_rev == LPFC_SLI_REV4) 833 lpfc_sli4_unreg_all_rpis(vport); 834 lpfc_mbx_unreg_vpi(vport); 835 spin_lock_irq(shost->host_lock); 836 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 837 spin_unlock_irq(shost->host_lock); 838 } 839 } 840 841 void 842 lpfc_port_link_failure(struct lpfc_vport *vport) 843 { 844 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 845 846 /* Cleanup any outstanding received buffers */ 847 lpfc_cleanup_rcv_buffers(vport); 848 849 /* Cleanup any outstanding RSCN activity */ 850 lpfc_els_flush_rscn(vport); 851 852 /* Cleanup any outstanding ELS commands */ 853 lpfc_els_flush_cmd(vport); 854 855 lpfc_cleanup_rpis(vport, 0); 856 857 /* Turn off discovery timer if its running */ 858 lpfc_can_disctmo(vport); 859 } 860 861 void 862 lpfc_linkdown_port(struct lpfc_vport *vport) 863 { 864 struct lpfc_hba *phba = vport->phba; 865 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 866 867 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 868 fc_host_post_event(shost, fc_get_event_number(), 869 FCH_EVT_LINKDOWN, 0); 870 871 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 872 "Link Down: state:x%x rtry:x%x flg:x%x", 873 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 874 875 lpfc_port_link_failure(vport); 876 877 /* Stop delayed Nport discovery */ 878 spin_lock_irq(shost->host_lock); 879 vport->fc_flag &= ~FC_DISC_DELAYED; 880 spin_unlock_irq(shost->host_lock); 881 del_timer_sync(&vport->delayed_disc_tmo); 882 } 883 884 int 885 lpfc_linkdown(struct lpfc_hba *phba) 886 { 887 struct lpfc_vport *vport = phba->pport; 888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 889 struct lpfc_vport **vports; 890 LPFC_MBOXQ_t *mb; 891 int i; 892 893 if (phba->link_state == LPFC_LINK_DOWN) 894 return 0; 895 896 /* Block all SCSI stack I/Os */ 897 lpfc_scsi_dev_block(phba); 898 899 spin_lock_irq(&phba->hbalock); 900 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 901 spin_unlock_irq(&phba->hbalock); 902 if (phba->link_state > LPFC_LINK_DOWN) { 903 phba->link_state = LPFC_LINK_DOWN; 904 spin_lock_irq(shost->host_lock); 905 phba->pport->fc_flag &= ~FC_LBIT; 906 spin_unlock_irq(shost->host_lock); 907 } 908 vports = lpfc_create_vport_work_array(phba); 909 if (vports != NULL) { 910 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 911 /* Issue a LINK DOWN event to all nodes */ 912 lpfc_linkdown_port(vports[i]); 913 914 vports[i]->fc_myDID = 0; 915 916 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 917 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 918 if (phba->nvmet_support) 919 lpfc_nvmet_update_targetport(phba); 920 else 921 lpfc_nvme_update_localport(vports[i]); 922 } 923 } 924 } 925 lpfc_destroy_vport_work_array(phba, vports); 926 /* Clean up any firmware default rpi's */ 927 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 928 if (mb) { 929 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 930 mb->vport = vport; 931 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 932 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 933 == MBX_NOT_FINISHED) { 934 mempool_free(mb, phba->mbox_mem_pool); 935 } 936 } 937 938 /* Setup myDID for link up if we are in pt2pt mode */ 939 if (phba->pport->fc_flag & FC_PT2PT) { 940 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 941 if (mb) { 942 lpfc_config_link(phba, mb); 943 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 944 mb->vport = vport; 945 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 946 == MBX_NOT_FINISHED) { 947 mempool_free(mb, phba->mbox_mem_pool); 948 } 949 } 950 spin_lock_irq(shost->host_lock); 951 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 952 spin_unlock_irq(shost->host_lock); 953 } 954 return 0; 955 } 956 957 static void 958 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 959 { 960 struct lpfc_nodelist *ndlp; 961 962 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 963 if (!NLP_CHK_NODE_ACT(ndlp)) 964 continue; 965 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 966 continue; 967 if (ndlp->nlp_type & NLP_FABRIC) { 968 /* On Linkup its safe to clean up the ndlp 969 * from Fabric connections. 970 */ 971 if (ndlp->nlp_DID != Fabric_DID) 972 lpfc_unreg_rpi(vport, ndlp); 973 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 974 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 975 /* Fail outstanding IO now since device is 976 * marked for PLOGI. 977 */ 978 lpfc_unreg_rpi(vport, ndlp); 979 } 980 } 981 } 982 983 static void 984 lpfc_linkup_port(struct lpfc_vport *vport) 985 { 986 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 987 struct lpfc_hba *phba = vport->phba; 988 989 if ((vport->load_flag & FC_UNLOADING) != 0) 990 return; 991 992 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 993 "Link Up: top:x%x speed:x%x flg:x%x", 994 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 995 996 /* If NPIV is not enabled, only bring the physical port up */ 997 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 998 (vport != phba->pport)) 999 return; 1000 1001 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1002 fc_host_post_event(shost, fc_get_event_number(), 1003 FCH_EVT_LINKUP, 0); 1004 1005 spin_lock_irq(shost->host_lock); 1006 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1007 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1008 vport->fc_flag |= FC_NDISC_ACTIVE; 1009 vport->fc_ns_retry = 0; 1010 spin_unlock_irq(shost->host_lock); 1011 1012 if (vport->fc_flag & FC_LBIT) 1013 lpfc_linkup_cleanup_nodes(vport); 1014 1015 } 1016 1017 static int 1018 lpfc_linkup(struct lpfc_hba *phba) 1019 { 1020 struct lpfc_vport **vports; 1021 int i; 1022 1023 phba->link_state = LPFC_LINK_UP; 1024 1025 /* Unblock fabric iocbs if they are blocked */ 1026 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1027 del_timer_sync(&phba->fabric_block_timer); 1028 1029 vports = lpfc_create_vport_work_array(phba); 1030 if (vports != NULL) 1031 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1032 lpfc_linkup_port(vports[i]); 1033 lpfc_destroy_vport_work_array(phba, vports); 1034 1035 return 0; 1036 } 1037 1038 /* 1039 * This routine handles processing a CLEAR_LA mailbox 1040 * command upon completion. It is setup in the LPFC_MBOXQ 1041 * as the completion routine when the command is 1042 * handed off to the SLI layer. SLI3 only. 1043 */ 1044 static void 1045 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1046 { 1047 struct lpfc_vport *vport = pmb->vport; 1048 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1049 struct lpfc_sli *psli = &phba->sli; 1050 MAILBOX_t *mb = &pmb->u.mb; 1051 uint32_t control; 1052 1053 /* Since we don't do discovery right now, turn these off here */ 1054 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1055 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1056 1057 /* Check for error */ 1058 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1059 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1060 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1061 "0320 CLEAR_LA mbxStatus error x%x hba " 1062 "state x%x\n", 1063 mb->mbxStatus, vport->port_state); 1064 phba->link_state = LPFC_HBA_ERROR; 1065 goto out; 1066 } 1067 1068 if (vport->port_type == LPFC_PHYSICAL_PORT) 1069 phba->link_state = LPFC_HBA_READY; 1070 1071 spin_lock_irq(&phba->hbalock); 1072 psli->sli_flag |= LPFC_PROCESS_LA; 1073 control = readl(phba->HCregaddr); 1074 control |= HC_LAINT_ENA; 1075 writel(control, phba->HCregaddr); 1076 readl(phba->HCregaddr); /* flush */ 1077 spin_unlock_irq(&phba->hbalock); 1078 mempool_free(pmb, phba->mbox_mem_pool); 1079 return; 1080 1081 out: 1082 /* Device Discovery completes */ 1083 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1084 "0225 Device Discovery completes\n"); 1085 mempool_free(pmb, phba->mbox_mem_pool); 1086 1087 spin_lock_irq(shost->host_lock); 1088 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1089 spin_unlock_irq(shost->host_lock); 1090 1091 lpfc_can_disctmo(vport); 1092 1093 /* turn on Link Attention interrupts */ 1094 1095 spin_lock_irq(&phba->hbalock); 1096 psli->sli_flag |= LPFC_PROCESS_LA; 1097 control = readl(phba->HCregaddr); 1098 control |= HC_LAINT_ENA; 1099 writel(control, phba->HCregaddr); 1100 readl(phba->HCregaddr); /* flush */ 1101 spin_unlock_irq(&phba->hbalock); 1102 1103 return; 1104 } 1105 1106 1107 void 1108 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1109 { 1110 struct lpfc_vport *vport = pmb->vport; 1111 1112 if (pmb->u.mb.mbxStatus) 1113 goto out; 1114 1115 mempool_free(pmb, phba->mbox_mem_pool); 1116 1117 /* don't perform discovery for SLI4 loopback diagnostic test */ 1118 if ((phba->sli_rev == LPFC_SLI_REV4) && 1119 !(phba->hba_flag & HBA_FCOE_MODE) && 1120 (phba->link_flag & LS_LOOPBACK_MODE)) 1121 return; 1122 1123 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1124 vport->fc_flag & FC_PUBLIC_LOOP && 1125 !(vport->fc_flag & FC_LBIT)) { 1126 /* Need to wait for FAN - use discovery timer 1127 * for timeout. port_state is identically 1128 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1129 */ 1130 lpfc_set_disctmo(vport); 1131 return; 1132 } 1133 1134 /* Start discovery by sending a FLOGI. port_state is identically 1135 * LPFC_FLOGI while waiting for FLOGI cmpl 1136 */ 1137 if (vport->port_state != LPFC_FLOGI) 1138 lpfc_initial_flogi(vport); 1139 else if (vport->fc_flag & FC_PT2PT) 1140 lpfc_disc_start(vport); 1141 return; 1142 1143 out: 1144 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1145 "0306 CONFIG_LINK mbxStatus error x%x " 1146 "HBA state x%x\n", 1147 pmb->u.mb.mbxStatus, vport->port_state); 1148 mempool_free(pmb, phba->mbox_mem_pool); 1149 1150 lpfc_linkdown(phba); 1151 1152 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1153 "0200 CONFIG_LINK bad hba state x%x\n", 1154 vport->port_state); 1155 1156 lpfc_issue_clear_la(phba, vport); 1157 return; 1158 } 1159 1160 /** 1161 * lpfc_sli4_clear_fcf_rr_bmask 1162 * @phba pointer to the struct lpfc_hba for this port. 1163 * This fucnction resets the round robin bit mask and clears the 1164 * fcf priority list. The list deletions are done while holding the 1165 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1166 * from the lpfc_fcf_pri record. 1167 **/ 1168 void 1169 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1170 { 1171 struct lpfc_fcf_pri *fcf_pri; 1172 struct lpfc_fcf_pri *next_fcf_pri; 1173 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1174 spin_lock_irq(&phba->hbalock); 1175 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1176 &phba->fcf.fcf_pri_list, list) { 1177 list_del_init(&fcf_pri->list); 1178 fcf_pri->fcf_rec.flag = 0; 1179 } 1180 spin_unlock_irq(&phba->hbalock); 1181 } 1182 static void 1183 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1184 { 1185 struct lpfc_vport *vport = mboxq->vport; 1186 1187 if (mboxq->u.mb.mbxStatus) { 1188 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1189 "2017 REG_FCFI mbxStatus error x%x " 1190 "HBA state x%x\n", 1191 mboxq->u.mb.mbxStatus, vport->port_state); 1192 goto fail_out; 1193 } 1194 1195 /* Start FCoE discovery by sending a FLOGI. */ 1196 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1197 /* Set the FCFI registered flag */ 1198 spin_lock_irq(&phba->hbalock); 1199 phba->fcf.fcf_flag |= FCF_REGISTERED; 1200 spin_unlock_irq(&phba->hbalock); 1201 1202 /* If there is a pending FCoE event, restart FCF table scan. */ 1203 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1204 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1205 goto fail_out; 1206 1207 /* Mark successful completion of FCF table scan */ 1208 spin_lock_irq(&phba->hbalock); 1209 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1210 phba->hba_flag &= ~FCF_TS_INPROG; 1211 if (vport->port_state != LPFC_FLOGI) { 1212 phba->hba_flag |= FCF_RR_INPROG; 1213 spin_unlock_irq(&phba->hbalock); 1214 lpfc_issue_init_vfi(vport); 1215 goto out; 1216 } 1217 spin_unlock_irq(&phba->hbalock); 1218 goto out; 1219 1220 fail_out: 1221 spin_lock_irq(&phba->hbalock); 1222 phba->hba_flag &= ~FCF_RR_INPROG; 1223 spin_unlock_irq(&phba->hbalock); 1224 out: 1225 mempool_free(mboxq, phba->mbox_mem_pool); 1226 } 1227 1228 /** 1229 * lpfc_fab_name_match - Check if the fcf fabric name match. 1230 * @fab_name: pointer to fabric name. 1231 * @new_fcf_record: pointer to fcf record. 1232 * 1233 * This routine compare the fcf record's fabric name with provided 1234 * fabric name. If the fabric name are identical this function 1235 * returns 1 else return 0. 1236 **/ 1237 static uint32_t 1238 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1239 { 1240 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1241 return 0; 1242 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1243 return 0; 1244 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1245 return 0; 1246 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1247 return 0; 1248 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1249 return 0; 1250 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1251 return 0; 1252 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1253 return 0; 1254 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1255 return 0; 1256 return 1; 1257 } 1258 1259 /** 1260 * lpfc_sw_name_match - Check if the fcf switch name match. 1261 * @fab_name: pointer to fabric name. 1262 * @new_fcf_record: pointer to fcf record. 1263 * 1264 * This routine compare the fcf record's switch name with provided 1265 * switch name. If the switch name are identical this function 1266 * returns 1 else return 0. 1267 **/ 1268 static uint32_t 1269 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1270 { 1271 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1272 return 0; 1273 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1274 return 0; 1275 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1276 return 0; 1277 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1278 return 0; 1279 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1280 return 0; 1281 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1282 return 0; 1283 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1284 return 0; 1285 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1286 return 0; 1287 return 1; 1288 } 1289 1290 /** 1291 * lpfc_mac_addr_match - Check if the fcf mac address match. 1292 * @mac_addr: pointer to mac address. 1293 * @new_fcf_record: pointer to fcf record. 1294 * 1295 * This routine compare the fcf record's mac address with HBA's 1296 * FCF mac address. If the mac addresses are identical this function 1297 * returns 1 else return 0. 1298 **/ 1299 static uint32_t 1300 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1301 { 1302 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1303 return 0; 1304 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1305 return 0; 1306 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1307 return 0; 1308 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1309 return 0; 1310 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1311 return 0; 1312 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1313 return 0; 1314 return 1; 1315 } 1316 1317 static bool 1318 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1319 { 1320 return (curr_vlan_id == new_vlan_id); 1321 } 1322 1323 /** 1324 * lpfc_update_fcf_record - Update driver fcf record 1325 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1326 * @phba: pointer to lpfc hba data structure. 1327 * @fcf_index: Index for the lpfc_fcf_record. 1328 * @new_fcf_record: pointer to hba fcf record. 1329 * 1330 * This routine updates the driver FCF priority record from the new HBA FCF 1331 * record. This routine is called with the host lock held. 1332 **/ 1333 static void 1334 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1335 struct fcf_record *new_fcf_record 1336 ) 1337 { 1338 struct lpfc_fcf_pri *fcf_pri; 1339 1340 lockdep_assert_held(&phba->hbalock); 1341 1342 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1343 fcf_pri->fcf_rec.fcf_index = fcf_index; 1344 /* FCF record priority */ 1345 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1346 1347 } 1348 1349 /** 1350 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1351 * @fcf: pointer to driver fcf record. 1352 * @new_fcf_record: pointer to fcf record. 1353 * 1354 * This routine copies the FCF information from the FCF 1355 * record to lpfc_hba data structure. 1356 **/ 1357 static void 1358 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1359 struct fcf_record *new_fcf_record) 1360 { 1361 /* Fabric name */ 1362 fcf_rec->fabric_name[0] = 1363 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1364 fcf_rec->fabric_name[1] = 1365 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1366 fcf_rec->fabric_name[2] = 1367 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1368 fcf_rec->fabric_name[3] = 1369 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1370 fcf_rec->fabric_name[4] = 1371 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1372 fcf_rec->fabric_name[5] = 1373 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1374 fcf_rec->fabric_name[6] = 1375 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1376 fcf_rec->fabric_name[7] = 1377 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1378 /* Mac address */ 1379 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1380 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1381 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1382 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1383 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1384 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1385 /* FCF record index */ 1386 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1387 /* FCF record priority */ 1388 fcf_rec->priority = new_fcf_record->fip_priority; 1389 /* Switch name */ 1390 fcf_rec->switch_name[0] = 1391 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1392 fcf_rec->switch_name[1] = 1393 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1394 fcf_rec->switch_name[2] = 1395 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1396 fcf_rec->switch_name[3] = 1397 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1398 fcf_rec->switch_name[4] = 1399 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1400 fcf_rec->switch_name[5] = 1401 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1402 fcf_rec->switch_name[6] = 1403 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1404 fcf_rec->switch_name[7] = 1405 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1406 } 1407 1408 /** 1409 * lpfc_update_fcf_record - Update driver fcf record 1410 * @phba: pointer to lpfc hba data structure. 1411 * @fcf_rec: pointer to driver fcf record. 1412 * @new_fcf_record: pointer to hba fcf record. 1413 * @addr_mode: address mode to be set to the driver fcf record. 1414 * @vlan_id: vlan tag to be set to the driver fcf record. 1415 * @flag: flag bits to be set to the driver fcf record. 1416 * 1417 * This routine updates the driver FCF record from the new HBA FCF record 1418 * together with the address mode, vlan_id, and other informations. This 1419 * routine is called with the host lock held. 1420 **/ 1421 static void 1422 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1423 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1424 uint16_t vlan_id, uint32_t flag) 1425 { 1426 lockdep_assert_held(&phba->hbalock); 1427 1428 /* Copy the fields from the HBA's FCF record */ 1429 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1430 /* Update other fields of driver FCF record */ 1431 fcf_rec->addr_mode = addr_mode; 1432 fcf_rec->vlan_id = vlan_id; 1433 fcf_rec->flag |= (flag | RECORD_VALID); 1434 __lpfc_update_fcf_record_pri(phba, 1435 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1436 new_fcf_record); 1437 } 1438 1439 /** 1440 * lpfc_register_fcf - Register the FCF with hba. 1441 * @phba: pointer to lpfc hba data structure. 1442 * 1443 * This routine issues a register fcfi mailbox command to register 1444 * the fcf with HBA. 1445 **/ 1446 static void 1447 lpfc_register_fcf(struct lpfc_hba *phba) 1448 { 1449 LPFC_MBOXQ_t *fcf_mbxq; 1450 int rc; 1451 1452 spin_lock_irq(&phba->hbalock); 1453 /* If the FCF is not available do nothing. */ 1454 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1455 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1456 spin_unlock_irq(&phba->hbalock); 1457 return; 1458 } 1459 1460 /* The FCF is already registered, start discovery */ 1461 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1462 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1463 phba->hba_flag &= ~FCF_TS_INPROG; 1464 if (phba->pport->port_state != LPFC_FLOGI && 1465 phba->pport->fc_flag & FC_FABRIC) { 1466 phba->hba_flag |= FCF_RR_INPROG; 1467 spin_unlock_irq(&phba->hbalock); 1468 lpfc_initial_flogi(phba->pport); 1469 return; 1470 } 1471 spin_unlock_irq(&phba->hbalock); 1472 return; 1473 } 1474 spin_unlock_irq(&phba->hbalock); 1475 1476 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1477 if (!fcf_mbxq) { 1478 spin_lock_irq(&phba->hbalock); 1479 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1480 spin_unlock_irq(&phba->hbalock); 1481 return; 1482 } 1483 1484 lpfc_reg_fcfi(phba, fcf_mbxq); 1485 fcf_mbxq->vport = phba->pport; 1486 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1487 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1488 if (rc == MBX_NOT_FINISHED) { 1489 spin_lock_irq(&phba->hbalock); 1490 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1491 spin_unlock_irq(&phba->hbalock); 1492 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1493 } 1494 1495 return; 1496 } 1497 1498 /** 1499 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1500 * @phba: pointer to lpfc hba data structure. 1501 * @new_fcf_record: pointer to fcf record. 1502 * @boot_flag: Indicates if this record used by boot bios. 1503 * @addr_mode: The address mode to be used by this FCF 1504 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1505 * 1506 * This routine compare the fcf record with connect list obtained from the 1507 * config region to decide if this FCF can be used for SAN discovery. It returns 1508 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1509 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1510 * is used by boot bios and addr_mode will indicate the addressing mode to be 1511 * used for this FCF when the function returns. 1512 * If the FCF record need to be used with a particular vlan id, the vlan is 1513 * set in the vlan_id on return of the function. If not VLAN tagging need to 1514 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1515 **/ 1516 static int 1517 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1518 struct fcf_record *new_fcf_record, 1519 uint32_t *boot_flag, uint32_t *addr_mode, 1520 uint16_t *vlan_id) 1521 { 1522 struct lpfc_fcf_conn_entry *conn_entry; 1523 int i, j, fcf_vlan_id = 0; 1524 1525 /* Find the lowest VLAN id in the FCF record */ 1526 for (i = 0; i < 512; i++) { 1527 if (new_fcf_record->vlan_bitmap[i]) { 1528 fcf_vlan_id = i * 8; 1529 j = 0; 1530 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1531 j++; 1532 fcf_vlan_id++; 1533 } 1534 break; 1535 } 1536 } 1537 1538 /* FCF not valid/available or solicitation in progress */ 1539 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1540 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1541 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1542 return 0; 1543 1544 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1545 *boot_flag = 0; 1546 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1547 new_fcf_record); 1548 if (phba->valid_vlan) 1549 *vlan_id = phba->vlan_id; 1550 else 1551 *vlan_id = LPFC_FCOE_NULL_VID; 1552 return 1; 1553 } 1554 1555 /* 1556 * If there are no FCF connection table entry, driver connect to all 1557 * FCFs. 1558 */ 1559 if (list_empty(&phba->fcf_conn_rec_list)) { 1560 *boot_flag = 0; 1561 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1562 new_fcf_record); 1563 1564 /* 1565 * When there are no FCF connect entries, use driver's default 1566 * addressing mode - FPMA. 1567 */ 1568 if (*addr_mode & LPFC_FCF_FPMA) 1569 *addr_mode = LPFC_FCF_FPMA; 1570 1571 /* If FCF record report a vlan id use that vlan id */ 1572 if (fcf_vlan_id) 1573 *vlan_id = fcf_vlan_id; 1574 else 1575 *vlan_id = LPFC_FCOE_NULL_VID; 1576 return 1; 1577 } 1578 1579 list_for_each_entry(conn_entry, 1580 &phba->fcf_conn_rec_list, list) { 1581 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1582 continue; 1583 1584 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1585 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1586 new_fcf_record)) 1587 continue; 1588 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1589 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1590 new_fcf_record)) 1591 continue; 1592 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1593 /* 1594 * If the vlan bit map does not have the bit set for the 1595 * vlan id to be used, then it is not a match. 1596 */ 1597 if (!(new_fcf_record->vlan_bitmap 1598 [conn_entry->conn_rec.vlan_tag / 8] & 1599 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1600 continue; 1601 } 1602 1603 /* 1604 * If connection record does not support any addressing mode, 1605 * skip the FCF record. 1606 */ 1607 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1608 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1609 continue; 1610 1611 /* 1612 * Check if the connection record specifies a required 1613 * addressing mode. 1614 */ 1615 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1616 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1617 1618 /* 1619 * If SPMA required but FCF not support this continue. 1620 */ 1621 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1622 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1623 new_fcf_record) & LPFC_FCF_SPMA)) 1624 continue; 1625 1626 /* 1627 * If FPMA required but FCF not support this continue. 1628 */ 1629 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1630 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1631 new_fcf_record) & LPFC_FCF_FPMA)) 1632 continue; 1633 } 1634 1635 /* 1636 * This fcf record matches filtering criteria. 1637 */ 1638 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1639 *boot_flag = 1; 1640 else 1641 *boot_flag = 0; 1642 1643 /* 1644 * If user did not specify any addressing mode, or if the 1645 * preferred addressing mode specified by user is not supported 1646 * by FCF, allow fabric to pick the addressing mode. 1647 */ 1648 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1649 new_fcf_record); 1650 /* 1651 * If the user specified a required address mode, assign that 1652 * address mode 1653 */ 1654 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1655 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1656 *addr_mode = (conn_entry->conn_rec.flags & 1657 FCFCNCT_AM_SPMA) ? 1658 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1659 /* 1660 * If the user specified a preferred address mode, use the 1661 * addr mode only if FCF support the addr_mode. 1662 */ 1663 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1664 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1665 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1666 (*addr_mode & LPFC_FCF_SPMA)) 1667 *addr_mode = LPFC_FCF_SPMA; 1668 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1669 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1670 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1671 (*addr_mode & LPFC_FCF_FPMA)) 1672 *addr_mode = LPFC_FCF_FPMA; 1673 1674 /* If matching connect list has a vlan id, use it */ 1675 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1676 *vlan_id = conn_entry->conn_rec.vlan_tag; 1677 /* 1678 * If no vlan id is specified in connect list, use the vlan id 1679 * in the FCF record 1680 */ 1681 else if (fcf_vlan_id) 1682 *vlan_id = fcf_vlan_id; 1683 else 1684 *vlan_id = LPFC_FCOE_NULL_VID; 1685 1686 return 1; 1687 } 1688 1689 return 0; 1690 } 1691 1692 /** 1693 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1694 * @phba: pointer to lpfc hba data structure. 1695 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1696 * 1697 * This function check if there is any fcoe event pending while driver 1698 * scan FCF entries. If there is any pending event, it will restart the 1699 * FCF saning and return 1 else return 0. 1700 */ 1701 int 1702 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1703 { 1704 /* 1705 * If the Link is up and no FCoE events while in the 1706 * FCF discovery, no need to restart FCF discovery. 1707 */ 1708 if ((phba->link_state >= LPFC_LINK_UP) && 1709 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1710 return 0; 1711 1712 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1713 "2768 Pending link or FCF event during current " 1714 "handling of the previous event: link_state:x%x, " 1715 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1716 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1717 phba->fcoe_eventtag); 1718 1719 spin_lock_irq(&phba->hbalock); 1720 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1721 spin_unlock_irq(&phba->hbalock); 1722 1723 if (phba->link_state >= LPFC_LINK_UP) { 1724 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1725 "2780 Restart FCF table scan due to " 1726 "pending FCF event:evt_tag_at_scan:x%x, " 1727 "evt_tag_current:x%x\n", 1728 phba->fcoe_eventtag_at_fcf_scan, 1729 phba->fcoe_eventtag); 1730 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1731 } else { 1732 /* 1733 * Do not continue FCF discovery and clear FCF_TS_INPROG 1734 * flag 1735 */ 1736 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1737 "2833 Stop FCF discovery process due to link " 1738 "state change (x%x)\n", phba->link_state); 1739 spin_lock_irq(&phba->hbalock); 1740 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1741 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1742 spin_unlock_irq(&phba->hbalock); 1743 } 1744 1745 /* Unregister the currently registered FCF if required */ 1746 if (unreg_fcf) { 1747 spin_lock_irq(&phba->hbalock); 1748 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1749 spin_unlock_irq(&phba->hbalock); 1750 lpfc_sli4_unregister_fcf(phba); 1751 } 1752 return 1; 1753 } 1754 1755 /** 1756 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1757 * @phba: pointer to lpfc hba data structure. 1758 * @fcf_cnt: number of eligible fcf record seen so far. 1759 * 1760 * This function makes an running random selection decision on FCF record to 1761 * use through a sequence of @fcf_cnt eligible FCF records with equal 1762 * probability. To perform integer manunipulation of random numbers with 1763 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1764 * from prandom_u32() are taken as the random random number generated. 1765 * 1766 * Returns true when outcome is for the newly read FCF record should be 1767 * chosen; otherwise, return false when outcome is for keeping the previously 1768 * chosen FCF record. 1769 **/ 1770 static bool 1771 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1772 { 1773 uint32_t rand_num; 1774 1775 /* Get 16-bit uniform random number */ 1776 rand_num = 0xFFFF & prandom_u32(); 1777 1778 /* Decision with probability 1/fcf_cnt */ 1779 if ((fcf_cnt * rand_num) < 0xFFFF) 1780 return true; 1781 else 1782 return false; 1783 } 1784 1785 /** 1786 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1787 * @phba: pointer to lpfc hba data structure. 1788 * @mboxq: pointer to mailbox object. 1789 * @next_fcf_index: pointer to holder of next fcf index. 1790 * 1791 * This routine parses the non-embedded fcf mailbox command by performing the 1792 * necessarily error checking, non-embedded read FCF record mailbox command 1793 * SGE parsing, and endianness swapping. 1794 * 1795 * Returns the pointer to the new FCF record in the non-embedded mailbox 1796 * command DMA memory if successfully, other NULL. 1797 */ 1798 static struct fcf_record * 1799 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1800 uint16_t *next_fcf_index) 1801 { 1802 void *virt_addr; 1803 struct lpfc_mbx_sge sge; 1804 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1805 uint32_t shdr_status, shdr_add_status, if_type; 1806 union lpfc_sli4_cfg_shdr *shdr; 1807 struct fcf_record *new_fcf_record; 1808 1809 /* Get the first SGE entry from the non-embedded DMA memory. This 1810 * routine only uses a single SGE. 1811 */ 1812 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1813 if (unlikely(!mboxq->sge_array)) { 1814 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1815 "2524 Failed to get the non-embedded SGE " 1816 "virtual address\n"); 1817 return NULL; 1818 } 1819 virt_addr = mboxq->sge_array->addr[0]; 1820 1821 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1822 lpfc_sli_pcimem_bcopy(shdr, shdr, 1823 sizeof(union lpfc_sli4_cfg_shdr)); 1824 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1825 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1826 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1827 if (shdr_status || shdr_add_status) { 1828 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1829 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1830 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1831 "2726 READ_FCF_RECORD Indicates empty " 1832 "FCF table.\n"); 1833 else 1834 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1835 "2521 READ_FCF_RECORD mailbox failed " 1836 "with status x%x add_status x%x, " 1837 "mbx\n", shdr_status, shdr_add_status); 1838 return NULL; 1839 } 1840 1841 /* Interpreting the returned information of the FCF record */ 1842 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1843 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1844 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1845 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1846 new_fcf_record = (struct fcf_record *)(virt_addr + 1847 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1848 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1849 offsetof(struct fcf_record, vlan_bitmap)); 1850 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1851 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1852 1853 return new_fcf_record; 1854 } 1855 1856 /** 1857 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1858 * @phba: pointer to lpfc hba data structure. 1859 * @fcf_record: pointer to the fcf record. 1860 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1861 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1862 * 1863 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1864 * enabled. 1865 **/ 1866 static void 1867 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1868 struct fcf_record *fcf_record, 1869 uint16_t vlan_id, 1870 uint16_t next_fcf_index) 1871 { 1872 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1873 "2764 READ_FCF_RECORD:\n" 1874 "\tFCF_Index : x%x\n" 1875 "\tFCF_Avail : x%x\n" 1876 "\tFCF_Valid : x%x\n" 1877 "\tFCF_SOL : x%x\n" 1878 "\tFIP_Priority : x%x\n" 1879 "\tMAC_Provider : x%x\n" 1880 "\tLowest VLANID : x%x\n" 1881 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1882 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1883 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1884 "\tNext_FCF_Index: x%x\n", 1885 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1886 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1887 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1888 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1889 fcf_record->fip_priority, 1890 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1891 vlan_id, 1892 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1893 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1894 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1895 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1896 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1897 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1898 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1899 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1900 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1901 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1902 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1903 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1904 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1905 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1906 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1907 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1908 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1909 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1910 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1911 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1912 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1913 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1914 next_fcf_index); 1915 } 1916 1917 /** 1918 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1919 * @phba: pointer to lpfc hba data structure. 1920 * @fcf_rec: pointer to an existing FCF record. 1921 * @new_fcf_record: pointer to a new FCF record. 1922 * @new_vlan_id: vlan id from the new FCF record. 1923 * 1924 * This function performs matching test of a new FCF record against an existing 1925 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1926 * will not be used as part of the FCF record matching criteria. 1927 * 1928 * Returns true if all the fields matching, otherwise returns false. 1929 */ 1930 static bool 1931 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1932 struct lpfc_fcf_rec *fcf_rec, 1933 struct fcf_record *new_fcf_record, 1934 uint16_t new_vlan_id) 1935 { 1936 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1937 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1938 return false; 1939 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1940 return false; 1941 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1942 return false; 1943 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1944 return false; 1945 if (fcf_rec->priority != new_fcf_record->fip_priority) 1946 return false; 1947 return true; 1948 } 1949 1950 /** 1951 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1952 * @vport: Pointer to vport object. 1953 * @fcf_index: index to next fcf. 1954 * 1955 * This function processing the roundrobin fcf failover to next fcf index. 1956 * When this function is invoked, there will be a current fcf registered 1957 * for flogi. 1958 * Return: 0 for continue retrying flogi on currently registered fcf; 1959 * 1 for stop flogi on currently registered fcf; 1960 */ 1961 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1962 { 1963 struct lpfc_hba *phba = vport->phba; 1964 int rc; 1965 1966 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1967 spin_lock_irq(&phba->hbalock); 1968 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1969 spin_unlock_irq(&phba->hbalock); 1970 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1971 "2872 Devloss tmo with no eligible " 1972 "FCF, unregister in-use FCF (x%x) " 1973 "and rescan FCF table\n", 1974 phba->fcf.current_rec.fcf_indx); 1975 lpfc_unregister_fcf_rescan(phba); 1976 goto stop_flogi_current_fcf; 1977 } 1978 /* Mark the end to FLOGI roundrobin failover */ 1979 phba->hba_flag &= ~FCF_RR_INPROG; 1980 /* Allow action to new fcf asynchronous event */ 1981 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1982 spin_unlock_irq(&phba->hbalock); 1983 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1984 "2865 No FCF available, stop roundrobin FCF " 1985 "failover and change port state:x%x/x%x\n", 1986 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1987 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1988 goto stop_flogi_current_fcf; 1989 } else { 1990 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1991 "2794 Try FLOGI roundrobin FCF failover to " 1992 "(x%x)\n", fcf_index); 1993 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 1994 if (rc) 1995 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 1996 "2761 FLOGI roundrobin FCF failover " 1997 "failed (rc:x%x) to read FCF (x%x)\n", 1998 rc, phba->fcf.current_rec.fcf_indx); 1999 else 2000 goto stop_flogi_current_fcf; 2001 } 2002 return 0; 2003 2004 stop_flogi_current_fcf: 2005 lpfc_can_disctmo(vport); 2006 return 1; 2007 } 2008 2009 /** 2010 * lpfc_sli4_fcf_pri_list_del 2011 * @phba: pointer to lpfc hba data structure. 2012 * @fcf_index the index of the fcf record to delete 2013 * This routine checks the on list flag of the fcf_index to be deleted. 2014 * If it is one the list then it is removed from the list, and the flag 2015 * is cleared. This routine grab the hbalock before removing the fcf 2016 * record from the list. 2017 **/ 2018 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2019 uint16_t fcf_index) 2020 { 2021 struct lpfc_fcf_pri *new_fcf_pri; 2022 2023 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2024 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2025 "3058 deleting idx x%x pri x%x flg x%x\n", 2026 fcf_index, new_fcf_pri->fcf_rec.priority, 2027 new_fcf_pri->fcf_rec.flag); 2028 spin_lock_irq(&phba->hbalock); 2029 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2030 if (phba->fcf.current_rec.priority == 2031 new_fcf_pri->fcf_rec.priority) 2032 phba->fcf.eligible_fcf_cnt--; 2033 list_del_init(&new_fcf_pri->list); 2034 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2035 } 2036 spin_unlock_irq(&phba->hbalock); 2037 } 2038 2039 /** 2040 * lpfc_sli4_set_fcf_flogi_fail 2041 * @phba: pointer to lpfc hba data structure. 2042 * @fcf_index the index of the fcf record to update 2043 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2044 * flag so the the round robin slection for the particular priority level 2045 * will try a different fcf record that does not have this bit set. 2046 * If the fcf record is re-read for any reason this flag is cleared brfore 2047 * adding it to the priority list. 2048 **/ 2049 void 2050 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2051 { 2052 struct lpfc_fcf_pri *new_fcf_pri; 2053 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2054 spin_lock_irq(&phba->hbalock); 2055 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2056 spin_unlock_irq(&phba->hbalock); 2057 } 2058 2059 /** 2060 * lpfc_sli4_fcf_pri_list_add 2061 * @phba: pointer to lpfc hba data structure. 2062 * @fcf_index the index of the fcf record to add 2063 * This routine checks the priority of the fcf_index to be added. 2064 * If it is a lower priority than the current head of the fcf_pri list 2065 * then it is added to the list in the right order. 2066 * If it is the same priority as the current head of the list then it 2067 * is added to the head of the list and its bit in the rr_bmask is set. 2068 * If the fcf_index to be added is of a higher priority than the current 2069 * head of the list then the rr_bmask is cleared, its bit is set in the 2070 * rr_bmask and it is added to the head of the list. 2071 * returns: 2072 * 0=success 1=failure 2073 **/ 2074 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2075 uint16_t fcf_index, 2076 struct fcf_record *new_fcf_record) 2077 { 2078 uint16_t current_fcf_pri; 2079 uint16_t last_index; 2080 struct lpfc_fcf_pri *fcf_pri; 2081 struct lpfc_fcf_pri *next_fcf_pri; 2082 struct lpfc_fcf_pri *new_fcf_pri; 2083 int ret; 2084 2085 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2086 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2087 "3059 adding idx x%x pri x%x flg x%x\n", 2088 fcf_index, new_fcf_record->fip_priority, 2089 new_fcf_pri->fcf_rec.flag); 2090 spin_lock_irq(&phba->hbalock); 2091 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2092 list_del_init(&new_fcf_pri->list); 2093 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2094 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2095 if (list_empty(&phba->fcf.fcf_pri_list)) { 2096 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2097 ret = lpfc_sli4_fcf_rr_index_set(phba, 2098 new_fcf_pri->fcf_rec.fcf_index); 2099 goto out; 2100 } 2101 2102 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2103 LPFC_SLI4_FCF_TBL_INDX_MAX); 2104 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2105 ret = 0; /* Empty rr list */ 2106 goto out; 2107 } 2108 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2109 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2110 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2111 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2112 memset(phba->fcf.fcf_rr_bmask, 0, 2113 sizeof(*phba->fcf.fcf_rr_bmask)); 2114 /* fcfs_at_this_priority_level = 1; */ 2115 phba->fcf.eligible_fcf_cnt = 1; 2116 } else 2117 /* fcfs_at_this_priority_level++; */ 2118 phba->fcf.eligible_fcf_cnt++; 2119 ret = lpfc_sli4_fcf_rr_index_set(phba, 2120 new_fcf_pri->fcf_rec.fcf_index); 2121 goto out; 2122 } 2123 2124 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2125 &phba->fcf.fcf_pri_list, list) { 2126 if (new_fcf_pri->fcf_rec.priority <= 2127 fcf_pri->fcf_rec.priority) { 2128 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2129 list_add(&new_fcf_pri->list, 2130 &phba->fcf.fcf_pri_list); 2131 else 2132 list_add(&new_fcf_pri->list, 2133 &((struct lpfc_fcf_pri *) 2134 fcf_pri->list.prev)->list); 2135 ret = 0; 2136 goto out; 2137 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2138 || new_fcf_pri->fcf_rec.priority < 2139 next_fcf_pri->fcf_rec.priority) { 2140 list_add(&new_fcf_pri->list, &fcf_pri->list); 2141 ret = 0; 2142 goto out; 2143 } 2144 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2145 continue; 2146 2147 } 2148 ret = 1; 2149 out: 2150 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2151 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2152 spin_unlock_irq(&phba->hbalock); 2153 return ret; 2154 } 2155 2156 /** 2157 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2158 * @phba: pointer to lpfc hba data structure. 2159 * @mboxq: pointer to mailbox object. 2160 * 2161 * This function iterates through all the fcf records available in 2162 * HBA and chooses the optimal FCF record for discovery. After finding 2163 * the FCF for discovery it registers the FCF record and kicks start 2164 * discovery. 2165 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2166 * use an FCF record which matches fabric name and mac address of the 2167 * currently used FCF record. 2168 * If the driver supports only one FCF, it will try to use the FCF record 2169 * used by BOOT_BIOS. 2170 */ 2171 void 2172 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2173 { 2174 struct fcf_record *new_fcf_record; 2175 uint32_t boot_flag, addr_mode; 2176 uint16_t fcf_index, next_fcf_index; 2177 struct lpfc_fcf_rec *fcf_rec = NULL; 2178 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2179 bool select_new_fcf; 2180 int rc; 2181 2182 /* If there is pending FCoE event restart FCF table scan */ 2183 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2184 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2185 return; 2186 } 2187 2188 /* Parse the FCF record from the non-embedded mailbox command */ 2189 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2190 &next_fcf_index); 2191 if (!new_fcf_record) { 2192 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2193 "2765 Mailbox command READ_FCF_RECORD " 2194 "failed to retrieve a FCF record.\n"); 2195 /* Let next new FCF event trigger fast failover */ 2196 spin_lock_irq(&phba->hbalock); 2197 phba->hba_flag &= ~FCF_TS_INPROG; 2198 spin_unlock_irq(&phba->hbalock); 2199 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2200 return; 2201 } 2202 2203 /* Check the FCF record against the connection list */ 2204 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2205 &addr_mode, &vlan_id); 2206 2207 /* Log the FCF record information if turned on */ 2208 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2209 next_fcf_index); 2210 2211 /* 2212 * If the fcf record does not match with connect list entries 2213 * read the next entry; otherwise, this is an eligible FCF 2214 * record for roundrobin FCF failover. 2215 */ 2216 if (!rc) { 2217 lpfc_sli4_fcf_pri_list_del(phba, 2218 bf_get(lpfc_fcf_record_fcf_index, 2219 new_fcf_record)); 2220 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2221 "2781 FCF (x%x) failed connection " 2222 "list check: (x%x/x%x/%x)\n", 2223 bf_get(lpfc_fcf_record_fcf_index, 2224 new_fcf_record), 2225 bf_get(lpfc_fcf_record_fcf_avail, 2226 new_fcf_record), 2227 bf_get(lpfc_fcf_record_fcf_valid, 2228 new_fcf_record), 2229 bf_get(lpfc_fcf_record_fcf_sol, 2230 new_fcf_record)); 2231 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2232 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2233 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2234 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2235 phba->fcf.current_rec.fcf_indx) { 2236 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2237 "2862 FCF (x%x) matches property " 2238 "of in-use FCF (x%x)\n", 2239 bf_get(lpfc_fcf_record_fcf_index, 2240 new_fcf_record), 2241 phba->fcf.current_rec.fcf_indx); 2242 goto read_next_fcf; 2243 } 2244 /* 2245 * In case the current in-use FCF record becomes 2246 * invalid/unavailable during FCF discovery that 2247 * was not triggered by fast FCF failover process, 2248 * treat it as fast FCF failover. 2249 */ 2250 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2251 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2252 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2253 "2835 Invalid in-use FCF " 2254 "(x%x), enter FCF failover " 2255 "table scan.\n", 2256 phba->fcf.current_rec.fcf_indx); 2257 spin_lock_irq(&phba->hbalock); 2258 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2259 spin_unlock_irq(&phba->hbalock); 2260 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2261 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2262 LPFC_FCOE_FCF_GET_FIRST); 2263 return; 2264 } 2265 } 2266 goto read_next_fcf; 2267 } else { 2268 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2269 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2270 new_fcf_record); 2271 if (rc) 2272 goto read_next_fcf; 2273 } 2274 2275 /* 2276 * If this is not the first FCF discovery of the HBA, use last 2277 * FCF record for the discovery. The condition that a rescan 2278 * matches the in-use FCF record: fabric name, switch name, mac 2279 * address, and vlan_id. 2280 */ 2281 spin_lock_irq(&phba->hbalock); 2282 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2283 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2284 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2285 new_fcf_record, vlan_id)) { 2286 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2287 phba->fcf.current_rec.fcf_indx) { 2288 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2289 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2290 /* Stop FCF redisc wait timer */ 2291 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2292 phba); 2293 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2294 /* Fast failover, mark completed */ 2295 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2296 spin_unlock_irq(&phba->hbalock); 2297 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2298 "2836 New FCF matches in-use " 2299 "FCF (x%x), port_state:x%x, " 2300 "fc_flag:x%x\n", 2301 phba->fcf.current_rec.fcf_indx, 2302 phba->pport->port_state, 2303 phba->pport->fc_flag); 2304 goto out; 2305 } else 2306 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2307 "2863 New FCF (x%x) matches " 2308 "property of in-use FCF (x%x)\n", 2309 bf_get(lpfc_fcf_record_fcf_index, 2310 new_fcf_record), 2311 phba->fcf.current_rec.fcf_indx); 2312 } 2313 /* 2314 * Read next FCF record from HBA searching for the matching 2315 * with in-use record only if not during the fast failover 2316 * period. In case of fast failover period, it shall try to 2317 * determine whether the FCF record just read should be the 2318 * next candidate. 2319 */ 2320 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2321 spin_unlock_irq(&phba->hbalock); 2322 goto read_next_fcf; 2323 } 2324 } 2325 /* 2326 * Update on failover FCF record only if it's in FCF fast-failover 2327 * period; otherwise, update on current FCF record. 2328 */ 2329 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2330 fcf_rec = &phba->fcf.failover_rec; 2331 else 2332 fcf_rec = &phba->fcf.current_rec; 2333 2334 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2335 /* 2336 * If the driver FCF record does not have boot flag 2337 * set and new hba fcf record has boot flag set, use 2338 * the new hba fcf record. 2339 */ 2340 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2341 /* Choose this FCF record */ 2342 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2343 "2837 Update current FCF record " 2344 "(x%x) with new FCF record (x%x)\n", 2345 fcf_rec->fcf_indx, 2346 bf_get(lpfc_fcf_record_fcf_index, 2347 new_fcf_record)); 2348 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2349 addr_mode, vlan_id, BOOT_ENABLE); 2350 spin_unlock_irq(&phba->hbalock); 2351 goto read_next_fcf; 2352 } 2353 /* 2354 * If the driver FCF record has boot flag set and the 2355 * new hba FCF record does not have boot flag, read 2356 * the next FCF record. 2357 */ 2358 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2359 spin_unlock_irq(&phba->hbalock); 2360 goto read_next_fcf; 2361 } 2362 /* 2363 * If the new hba FCF record has lower priority value 2364 * than the driver FCF record, use the new record. 2365 */ 2366 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2367 /* Choose the new FCF record with lower priority */ 2368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2369 "2838 Update current FCF record " 2370 "(x%x) with new FCF record (x%x)\n", 2371 fcf_rec->fcf_indx, 2372 bf_get(lpfc_fcf_record_fcf_index, 2373 new_fcf_record)); 2374 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2375 addr_mode, vlan_id, 0); 2376 /* Reset running random FCF selection count */ 2377 phba->fcf.eligible_fcf_cnt = 1; 2378 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2379 /* Update running random FCF selection count */ 2380 phba->fcf.eligible_fcf_cnt++; 2381 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2382 phba->fcf.eligible_fcf_cnt); 2383 if (select_new_fcf) { 2384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2385 "2839 Update current FCF record " 2386 "(x%x) with new FCF record (x%x)\n", 2387 fcf_rec->fcf_indx, 2388 bf_get(lpfc_fcf_record_fcf_index, 2389 new_fcf_record)); 2390 /* Choose the new FCF by random selection */ 2391 __lpfc_update_fcf_record(phba, fcf_rec, 2392 new_fcf_record, 2393 addr_mode, vlan_id, 0); 2394 } 2395 } 2396 spin_unlock_irq(&phba->hbalock); 2397 goto read_next_fcf; 2398 } 2399 /* 2400 * This is the first suitable FCF record, choose this record for 2401 * initial best-fit FCF. 2402 */ 2403 if (fcf_rec) { 2404 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2405 "2840 Update initial FCF candidate " 2406 "with FCF (x%x)\n", 2407 bf_get(lpfc_fcf_record_fcf_index, 2408 new_fcf_record)); 2409 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2410 addr_mode, vlan_id, (boot_flag ? 2411 BOOT_ENABLE : 0)); 2412 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2413 /* Setup initial running random FCF selection count */ 2414 phba->fcf.eligible_fcf_cnt = 1; 2415 } 2416 spin_unlock_irq(&phba->hbalock); 2417 goto read_next_fcf; 2418 2419 read_next_fcf: 2420 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2421 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2422 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2423 /* 2424 * Case of FCF fast failover scan 2425 */ 2426 2427 /* 2428 * It has not found any suitable FCF record, cancel 2429 * FCF scan inprogress, and do nothing 2430 */ 2431 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2432 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2433 "2782 No suitable FCF found: " 2434 "(x%x/x%x)\n", 2435 phba->fcoe_eventtag_at_fcf_scan, 2436 bf_get(lpfc_fcf_record_fcf_index, 2437 new_fcf_record)); 2438 spin_lock_irq(&phba->hbalock); 2439 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2440 phba->hba_flag &= ~FCF_TS_INPROG; 2441 spin_unlock_irq(&phba->hbalock); 2442 /* Unregister in-use FCF and rescan */ 2443 lpfc_printf_log(phba, KERN_INFO, 2444 LOG_FIP, 2445 "2864 On devloss tmo " 2446 "unreg in-use FCF and " 2447 "rescan FCF table\n"); 2448 lpfc_unregister_fcf_rescan(phba); 2449 return; 2450 } 2451 /* 2452 * Let next new FCF event trigger fast failover 2453 */ 2454 phba->hba_flag &= ~FCF_TS_INPROG; 2455 spin_unlock_irq(&phba->hbalock); 2456 return; 2457 } 2458 /* 2459 * It has found a suitable FCF record that is not 2460 * the same as in-use FCF record, unregister the 2461 * in-use FCF record, replace the in-use FCF record 2462 * with the new FCF record, mark FCF fast failover 2463 * completed, and then start register the new FCF 2464 * record. 2465 */ 2466 2467 /* Unregister the current in-use FCF record */ 2468 lpfc_unregister_fcf(phba); 2469 2470 /* Replace in-use record with the new record */ 2471 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2472 "2842 Replace in-use FCF (x%x) " 2473 "with failover FCF (x%x)\n", 2474 phba->fcf.current_rec.fcf_indx, 2475 phba->fcf.failover_rec.fcf_indx); 2476 memcpy(&phba->fcf.current_rec, 2477 &phba->fcf.failover_rec, 2478 sizeof(struct lpfc_fcf_rec)); 2479 /* 2480 * Mark the fast FCF failover rediscovery completed 2481 * and the start of the first round of the roundrobin 2482 * FCF failover. 2483 */ 2484 spin_lock_irq(&phba->hbalock); 2485 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2486 spin_unlock_irq(&phba->hbalock); 2487 /* Register to the new FCF record */ 2488 lpfc_register_fcf(phba); 2489 } else { 2490 /* 2491 * In case of transaction period to fast FCF failover, 2492 * do nothing when search to the end of the FCF table. 2493 */ 2494 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2495 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2496 return; 2497 2498 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2499 phba->fcf.fcf_flag & FCF_IN_USE) { 2500 /* 2501 * In case the current in-use FCF record no 2502 * longer existed during FCF discovery that 2503 * was not triggered by fast FCF failover 2504 * process, treat it as fast FCF failover. 2505 */ 2506 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2507 "2841 In-use FCF record (x%x) " 2508 "not reported, entering fast " 2509 "FCF failover mode scanning.\n", 2510 phba->fcf.current_rec.fcf_indx); 2511 spin_lock_irq(&phba->hbalock); 2512 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2513 spin_unlock_irq(&phba->hbalock); 2514 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2515 LPFC_FCOE_FCF_GET_FIRST); 2516 return; 2517 } 2518 /* Register to the new FCF record */ 2519 lpfc_register_fcf(phba); 2520 } 2521 } else 2522 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2523 return; 2524 2525 out: 2526 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2527 lpfc_register_fcf(phba); 2528 2529 return; 2530 } 2531 2532 /** 2533 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2534 * @phba: pointer to lpfc hba data structure. 2535 * @mboxq: pointer to mailbox object. 2536 * 2537 * This is the callback function for FLOGI failure roundrobin FCF failover 2538 * read FCF record mailbox command from the eligible FCF record bmask for 2539 * performing the failover. If the FCF read back is not valid/available, it 2540 * fails through to retrying FLOGI to the currently registered FCF again. 2541 * Otherwise, if the FCF read back is valid and available, it will set the 2542 * newly read FCF record to the failover FCF record, unregister currently 2543 * registered FCF record, copy the failover FCF record to the current 2544 * FCF record, and then register the current FCF record before proceeding 2545 * to trying FLOGI on the new failover FCF. 2546 */ 2547 void 2548 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2549 { 2550 struct fcf_record *new_fcf_record; 2551 uint32_t boot_flag, addr_mode; 2552 uint16_t next_fcf_index, fcf_index; 2553 uint16_t current_fcf_index; 2554 uint16_t vlan_id; 2555 int rc; 2556 2557 /* If link state is not up, stop the roundrobin failover process */ 2558 if (phba->link_state < LPFC_LINK_UP) { 2559 spin_lock_irq(&phba->hbalock); 2560 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2561 phba->hba_flag &= ~FCF_RR_INPROG; 2562 spin_unlock_irq(&phba->hbalock); 2563 goto out; 2564 } 2565 2566 /* Parse the FCF record from the non-embedded mailbox command */ 2567 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2568 &next_fcf_index); 2569 if (!new_fcf_record) { 2570 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2571 "2766 Mailbox command READ_FCF_RECORD " 2572 "failed to retrieve a FCF record. " 2573 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2574 phba->fcf.fcf_flag); 2575 lpfc_unregister_fcf_rescan(phba); 2576 goto out; 2577 } 2578 2579 /* Get the needed parameters from FCF record */ 2580 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2581 &addr_mode, &vlan_id); 2582 2583 /* Log the FCF record information if turned on */ 2584 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2585 next_fcf_index); 2586 2587 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2588 if (!rc) { 2589 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2590 "2848 Remove ineligible FCF (x%x) from " 2591 "from roundrobin bmask\n", fcf_index); 2592 /* Clear roundrobin bmask bit for ineligible FCF */ 2593 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2594 /* Perform next round of roundrobin FCF failover */ 2595 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2596 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2597 if (rc) 2598 goto out; 2599 goto error_out; 2600 } 2601 2602 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2603 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2604 "2760 Perform FLOGI roundrobin FCF failover: " 2605 "FCF (x%x) back to FCF (x%x)\n", 2606 phba->fcf.current_rec.fcf_indx, fcf_index); 2607 /* Wait 500 ms before retrying FLOGI to current FCF */ 2608 msleep(500); 2609 lpfc_issue_init_vfi(phba->pport); 2610 goto out; 2611 } 2612 2613 /* Upload new FCF record to the failover FCF record */ 2614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2615 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2616 phba->fcf.failover_rec.fcf_indx, fcf_index); 2617 spin_lock_irq(&phba->hbalock); 2618 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2619 new_fcf_record, addr_mode, vlan_id, 2620 (boot_flag ? BOOT_ENABLE : 0)); 2621 spin_unlock_irq(&phba->hbalock); 2622 2623 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2624 2625 /* Unregister the current in-use FCF record */ 2626 lpfc_unregister_fcf(phba); 2627 2628 /* Replace in-use record with the new record */ 2629 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2630 sizeof(struct lpfc_fcf_rec)); 2631 2632 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2633 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2634 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2635 2636 error_out: 2637 lpfc_register_fcf(phba); 2638 out: 2639 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2640 } 2641 2642 /** 2643 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2644 * @phba: pointer to lpfc hba data structure. 2645 * @mboxq: pointer to mailbox object. 2646 * 2647 * This is the callback function of read FCF record mailbox command for 2648 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2649 * failover when a new FCF event happened. If the FCF read back is 2650 * valid/available and it passes the connection list check, it updates 2651 * the bmask for the eligible FCF record for roundrobin failover. 2652 */ 2653 void 2654 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2655 { 2656 struct fcf_record *new_fcf_record; 2657 uint32_t boot_flag, addr_mode; 2658 uint16_t fcf_index, next_fcf_index; 2659 uint16_t vlan_id; 2660 int rc; 2661 2662 /* If link state is not up, no need to proceed */ 2663 if (phba->link_state < LPFC_LINK_UP) 2664 goto out; 2665 2666 /* If FCF discovery period is over, no need to proceed */ 2667 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2668 goto out; 2669 2670 /* Parse the FCF record from the non-embedded mailbox command */ 2671 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2672 &next_fcf_index); 2673 if (!new_fcf_record) { 2674 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2675 "2767 Mailbox command READ_FCF_RECORD " 2676 "failed to retrieve a FCF record.\n"); 2677 goto out; 2678 } 2679 2680 /* Check the connection list for eligibility */ 2681 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2682 &addr_mode, &vlan_id); 2683 2684 /* Log the FCF record information if turned on */ 2685 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2686 next_fcf_index); 2687 2688 if (!rc) 2689 goto out; 2690 2691 /* Update the eligible FCF record index bmask */ 2692 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2693 2694 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2695 2696 out: 2697 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2698 } 2699 2700 /** 2701 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2702 * @phba: pointer to lpfc hba data structure. 2703 * @mboxq: pointer to mailbox data structure. 2704 * 2705 * This function handles completion of init vfi mailbox command. 2706 */ 2707 static void 2708 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2709 { 2710 struct lpfc_vport *vport = mboxq->vport; 2711 2712 /* 2713 * VFI not supported on interface type 0, just do the flogi 2714 * Also continue if the VFI is in use - just use the same one. 2715 */ 2716 if (mboxq->u.mb.mbxStatus && 2717 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2718 LPFC_SLI_INTF_IF_TYPE_0) && 2719 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2720 lpfc_printf_vlog(vport, KERN_ERR, 2721 LOG_MBOX, 2722 "2891 Init VFI mailbox failed 0x%x\n", 2723 mboxq->u.mb.mbxStatus); 2724 mempool_free(mboxq, phba->mbox_mem_pool); 2725 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2726 return; 2727 } 2728 2729 lpfc_initial_flogi(vport); 2730 mempool_free(mboxq, phba->mbox_mem_pool); 2731 return; 2732 } 2733 2734 /** 2735 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2736 * @vport: pointer to lpfc_vport data structure. 2737 * 2738 * This function issue a init_vfi mailbox command to initialize the VFI and 2739 * VPI for the physical port. 2740 */ 2741 void 2742 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2743 { 2744 LPFC_MBOXQ_t *mboxq; 2745 int rc; 2746 struct lpfc_hba *phba = vport->phba; 2747 2748 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2749 if (!mboxq) { 2750 lpfc_printf_vlog(vport, KERN_ERR, 2751 LOG_MBOX, "2892 Failed to allocate " 2752 "init_vfi mailbox\n"); 2753 return; 2754 } 2755 lpfc_init_vfi(mboxq, vport); 2756 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2757 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2758 if (rc == MBX_NOT_FINISHED) { 2759 lpfc_printf_vlog(vport, KERN_ERR, 2760 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2761 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2762 } 2763 } 2764 2765 /** 2766 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2767 * @phba: pointer to lpfc hba data structure. 2768 * @mboxq: pointer to mailbox data structure. 2769 * 2770 * This function handles completion of init vpi mailbox command. 2771 */ 2772 void 2773 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2774 { 2775 struct lpfc_vport *vport = mboxq->vport; 2776 struct lpfc_nodelist *ndlp; 2777 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2778 2779 if (mboxq->u.mb.mbxStatus) { 2780 lpfc_printf_vlog(vport, KERN_ERR, 2781 LOG_MBOX, 2782 "2609 Init VPI mailbox failed 0x%x\n", 2783 mboxq->u.mb.mbxStatus); 2784 mempool_free(mboxq, phba->mbox_mem_pool); 2785 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2786 return; 2787 } 2788 spin_lock_irq(shost->host_lock); 2789 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2790 spin_unlock_irq(shost->host_lock); 2791 2792 /* If this port is physical port or FDISC is done, do reg_vpi */ 2793 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2794 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2795 if (!ndlp) 2796 lpfc_printf_vlog(vport, KERN_ERR, 2797 LOG_DISCOVERY, 2798 "2731 Cannot find fabric " 2799 "controller node\n"); 2800 else 2801 lpfc_register_new_vport(phba, vport, ndlp); 2802 mempool_free(mboxq, phba->mbox_mem_pool); 2803 return; 2804 } 2805 2806 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2807 lpfc_initial_fdisc(vport); 2808 else { 2809 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2810 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2811 "2606 No NPIV Fabric support\n"); 2812 } 2813 mempool_free(mboxq, phba->mbox_mem_pool); 2814 return; 2815 } 2816 2817 /** 2818 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2819 * @vport: pointer to lpfc_vport data structure. 2820 * 2821 * This function issue a init_vpi mailbox command to initialize 2822 * VPI for the vport. 2823 */ 2824 void 2825 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2826 { 2827 LPFC_MBOXQ_t *mboxq; 2828 int rc, vpi; 2829 2830 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2831 vpi = lpfc_alloc_vpi(vport->phba); 2832 if (!vpi) { 2833 lpfc_printf_vlog(vport, KERN_ERR, 2834 LOG_MBOX, 2835 "3303 Failed to obtain vport vpi\n"); 2836 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2837 return; 2838 } 2839 vport->vpi = vpi; 2840 } 2841 2842 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2843 if (!mboxq) { 2844 lpfc_printf_vlog(vport, KERN_ERR, 2845 LOG_MBOX, "2607 Failed to allocate " 2846 "init_vpi mailbox\n"); 2847 return; 2848 } 2849 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2850 mboxq->vport = vport; 2851 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2852 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2853 if (rc == MBX_NOT_FINISHED) { 2854 lpfc_printf_vlog(vport, KERN_ERR, 2855 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2856 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2857 } 2858 } 2859 2860 /** 2861 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2862 * @phba: pointer to lpfc hba data structure. 2863 * 2864 * This function loops through the list of vports on the @phba and issues an 2865 * FDISC if possible. 2866 */ 2867 void 2868 lpfc_start_fdiscs(struct lpfc_hba *phba) 2869 { 2870 struct lpfc_vport **vports; 2871 int i; 2872 2873 vports = lpfc_create_vport_work_array(phba); 2874 if (vports != NULL) { 2875 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2876 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2877 continue; 2878 /* There are no vpi for this vport */ 2879 if (vports[i]->vpi > phba->max_vpi) { 2880 lpfc_vport_set_state(vports[i], 2881 FC_VPORT_FAILED); 2882 continue; 2883 } 2884 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2885 lpfc_vport_set_state(vports[i], 2886 FC_VPORT_LINKDOWN); 2887 continue; 2888 } 2889 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2890 lpfc_issue_init_vpi(vports[i]); 2891 continue; 2892 } 2893 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2894 lpfc_initial_fdisc(vports[i]); 2895 else { 2896 lpfc_vport_set_state(vports[i], 2897 FC_VPORT_NO_FABRIC_SUPP); 2898 lpfc_printf_vlog(vports[i], KERN_ERR, 2899 LOG_ELS, 2900 "0259 No NPIV " 2901 "Fabric support\n"); 2902 } 2903 } 2904 } 2905 lpfc_destroy_vport_work_array(phba, vports); 2906 } 2907 2908 void 2909 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2910 { 2911 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2912 struct lpfc_vport *vport = mboxq->vport; 2913 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2914 2915 /* 2916 * VFI not supported for interface type 0, so ignore any mailbox 2917 * error (except VFI in use) and continue with the discovery. 2918 */ 2919 if (mboxq->u.mb.mbxStatus && 2920 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2921 LPFC_SLI_INTF_IF_TYPE_0) && 2922 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2923 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2924 "2018 REG_VFI mbxStatus error x%x " 2925 "HBA state x%x\n", 2926 mboxq->u.mb.mbxStatus, vport->port_state); 2927 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2928 /* FLOGI failed, use loop map to make discovery list */ 2929 lpfc_disc_list_loopmap(vport); 2930 /* Start discovery */ 2931 lpfc_disc_start(vport); 2932 goto out_free_mem; 2933 } 2934 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2935 goto out_free_mem; 2936 } 2937 2938 /* If the VFI is already registered, there is nothing else to do 2939 * Unless this was a VFI update and we are in PT2PT mode, then 2940 * we should drop through to set the port state to ready. 2941 */ 2942 if (vport->fc_flag & FC_VFI_REGISTERED) 2943 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2944 vport->fc_flag & FC_PT2PT)) 2945 goto out_free_mem; 2946 2947 /* The VPI is implicitly registered when the VFI is registered */ 2948 spin_lock_irq(shost->host_lock); 2949 vport->vpi_state |= LPFC_VPI_REGISTERED; 2950 vport->fc_flag |= FC_VFI_REGISTERED; 2951 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2952 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2953 spin_unlock_irq(shost->host_lock); 2954 2955 /* In case SLI4 FC loopback test, we are ready */ 2956 if ((phba->sli_rev == LPFC_SLI_REV4) && 2957 (phba->link_flag & LS_LOOPBACK_MODE)) { 2958 phba->link_state = LPFC_HBA_READY; 2959 goto out_free_mem; 2960 } 2961 2962 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2963 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2964 "alpacnt:%d LinkState:%x topology:%x\n", 2965 vport->port_state, vport->fc_flag, vport->fc_myDID, 2966 vport->phba->alpa_map[0], 2967 phba->link_state, phba->fc_topology); 2968 2969 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2970 /* 2971 * For private loop or for NPort pt2pt, 2972 * just start discovery and we are done. 2973 */ 2974 if ((vport->fc_flag & FC_PT2PT) || 2975 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2976 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2977 2978 /* Use loop map to make discovery list */ 2979 lpfc_disc_list_loopmap(vport); 2980 /* Start discovery */ 2981 if (vport->fc_flag & FC_PT2PT) 2982 vport->port_state = LPFC_VPORT_READY; 2983 else 2984 lpfc_disc_start(vport); 2985 } else { 2986 lpfc_start_fdiscs(phba); 2987 lpfc_do_scr_ns_plogi(phba, vport); 2988 } 2989 } 2990 2991 out_free_mem: 2992 mempool_free(mboxq, phba->mbox_mem_pool); 2993 if (dmabuf) { 2994 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 2995 kfree(dmabuf); 2996 } 2997 return; 2998 } 2999 3000 static void 3001 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3002 { 3003 MAILBOX_t *mb = &pmb->u.mb; 3004 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 3005 struct lpfc_vport *vport = pmb->vport; 3006 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3007 struct serv_parm *sp = &vport->fc_sparam; 3008 uint32_t ed_tov; 3009 3010 /* Check for error */ 3011 if (mb->mbxStatus) { 3012 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3013 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3014 "0319 READ_SPARAM mbxStatus error x%x " 3015 "hba state x%x>\n", 3016 mb->mbxStatus, vport->port_state); 3017 lpfc_linkdown(phba); 3018 goto out; 3019 } 3020 3021 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3022 sizeof (struct serv_parm)); 3023 3024 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3025 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3026 ed_tov = (ed_tov + 999999) / 1000000; 3027 3028 phba->fc_edtov = ed_tov; 3029 phba->fc_ratov = (2 * ed_tov) / 1000; 3030 if (phba->fc_ratov < FF_DEF_RATOV) { 3031 /* RA_TOV should be atleast 10sec for initial flogi */ 3032 phba->fc_ratov = FF_DEF_RATOV; 3033 } 3034 3035 lpfc_update_vport_wwn(vport); 3036 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3037 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3038 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3039 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3040 } 3041 3042 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3043 kfree(mp); 3044 mempool_free(pmb, phba->mbox_mem_pool); 3045 return; 3046 3047 out: 3048 pmb->context1 = NULL; 3049 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3050 kfree(mp); 3051 lpfc_issue_clear_la(phba, vport); 3052 mempool_free(pmb, phba->mbox_mem_pool); 3053 return; 3054 } 3055 3056 static void 3057 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3058 { 3059 struct lpfc_vport *vport = phba->pport; 3060 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3061 struct Scsi_Host *shost; 3062 int i; 3063 struct lpfc_dmabuf *mp; 3064 int rc; 3065 struct fcf_record *fcf_record; 3066 uint32_t fc_flags = 0; 3067 3068 spin_lock_irq(&phba->hbalock); 3069 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3070 3071 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3072 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3073 case LPFC_LINK_SPEED_1GHZ: 3074 case LPFC_LINK_SPEED_2GHZ: 3075 case LPFC_LINK_SPEED_4GHZ: 3076 case LPFC_LINK_SPEED_8GHZ: 3077 case LPFC_LINK_SPEED_10GHZ: 3078 case LPFC_LINK_SPEED_16GHZ: 3079 case LPFC_LINK_SPEED_32GHZ: 3080 break; 3081 default: 3082 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3083 break; 3084 } 3085 } 3086 3087 if (phba->fc_topology && 3088 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3089 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3090 "3314 Toplogy changed was 0x%x is 0x%x\n", 3091 phba->fc_topology, 3092 bf_get(lpfc_mbx_read_top_topology, la)); 3093 phba->fc_topology_changed = 1; 3094 } 3095 3096 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3097 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3098 3099 shost = lpfc_shost_from_vport(vport); 3100 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3101 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3102 3103 /* if npiv is enabled and this adapter supports npiv log 3104 * a message that npiv is not supported in this topology 3105 */ 3106 if (phba->cfg_enable_npiv && phba->max_vpi) 3107 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3108 "1309 Link Up Event npiv not supported in loop " 3109 "topology\n"); 3110 /* Get Loop Map information */ 3111 if (bf_get(lpfc_mbx_read_top_il, la)) 3112 fc_flags |= FC_LBIT; 3113 3114 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3115 i = la->lilpBde64.tus.f.bdeSize; 3116 3117 if (i == 0) { 3118 phba->alpa_map[0] = 0; 3119 } else { 3120 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3121 int numalpa, j, k; 3122 union { 3123 uint8_t pamap[16]; 3124 struct { 3125 uint32_t wd1; 3126 uint32_t wd2; 3127 uint32_t wd3; 3128 uint32_t wd4; 3129 } pa; 3130 } un; 3131 numalpa = phba->alpa_map[0]; 3132 j = 0; 3133 while (j < numalpa) { 3134 memset(un.pamap, 0, 16); 3135 for (k = 1; j < numalpa; k++) { 3136 un.pamap[k - 1] = 3137 phba->alpa_map[j + 1]; 3138 j++; 3139 if (k == 16) 3140 break; 3141 } 3142 /* Link Up Event ALPA map */ 3143 lpfc_printf_log(phba, 3144 KERN_WARNING, 3145 LOG_LINK_EVENT, 3146 "1304 Link Up Event " 3147 "ALPA map Data: x%x " 3148 "x%x x%x x%x\n", 3149 un.pa.wd1, un.pa.wd2, 3150 un.pa.wd3, un.pa.wd4); 3151 } 3152 } 3153 } 3154 } else { 3155 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3156 if (phba->max_vpi && phba->cfg_enable_npiv && 3157 (phba->sli_rev >= LPFC_SLI_REV3)) 3158 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3159 } 3160 vport->fc_myDID = phba->fc_pref_DID; 3161 fc_flags |= FC_LBIT; 3162 } 3163 spin_unlock_irq(&phba->hbalock); 3164 3165 if (fc_flags) { 3166 spin_lock_irq(shost->host_lock); 3167 vport->fc_flag |= fc_flags; 3168 spin_unlock_irq(shost->host_lock); 3169 } 3170 3171 lpfc_linkup(phba); 3172 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3173 if (!sparam_mbox) 3174 goto out; 3175 3176 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3177 if (rc) { 3178 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3179 goto out; 3180 } 3181 sparam_mbox->vport = vport; 3182 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3183 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3184 if (rc == MBX_NOT_FINISHED) { 3185 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3186 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3187 kfree(mp); 3188 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3189 goto out; 3190 } 3191 3192 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3193 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3194 if (!cfglink_mbox) 3195 goto out; 3196 vport->port_state = LPFC_LOCAL_CFG_LINK; 3197 lpfc_config_link(phba, cfglink_mbox); 3198 cfglink_mbox->vport = vport; 3199 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3200 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3201 if (rc == MBX_NOT_FINISHED) { 3202 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3203 goto out; 3204 } 3205 } else { 3206 vport->port_state = LPFC_VPORT_UNKNOWN; 3207 /* 3208 * Add the driver's default FCF record at FCF index 0 now. This 3209 * is phase 1 implementation that support FCF index 0 and driver 3210 * defaults. 3211 */ 3212 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3213 fcf_record = kzalloc(sizeof(struct fcf_record), 3214 GFP_KERNEL); 3215 if (unlikely(!fcf_record)) { 3216 lpfc_printf_log(phba, KERN_ERR, 3217 LOG_MBOX | LOG_SLI, 3218 "2554 Could not allocate memory for " 3219 "fcf record\n"); 3220 rc = -ENODEV; 3221 goto out; 3222 } 3223 3224 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3225 LPFC_FCOE_FCF_DEF_INDEX); 3226 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3227 if (unlikely(rc)) { 3228 lpfc_printf_log(phba, KERN_ERR, 3229 LOG_MBOX | LOG_SLI, 3230 "2013 Could not manually add FCF " 3231 "record 0, status %d\n", rc); 3232 rc = -ENODEV; 3233 kfree(fcf_record); 3234 goto out; 3235 } 3236 kfree(fcf_record); 3237 } 3238 /* 3239 * The driver is expected to do FIP/FCF. Call the port 3240 * and get the FCF Table. 3241 */ 3242 spin_lock_irq(&phba->hbalock); 3243 if (phba->hba_flag & FCF_TS_INPROG) { 3244 spin_unlock_irq(&phba->hbalock); 3245 return; 3246 } 3247 /* This is the initial FCF discovery scan */ 3248 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3249 spin_unlock_irq(&phba->hbalock); 3250 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3251 "2778 Start FCF table scan at linkup\n"); 3252 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3253 LPFC_FCOE_FCF_GET_FIRST); 3254 if (rc) { 3255 spin_lock_irq(&phba->hbalock); 3256 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3257 spin_unlock_irq(&phba->hbalock); 3258 goto out; 3259 } 3260 /* Reset FCF roundrobin bmask for new discovery */ 3261 lpfc_sli4_clear_fcf_rr_bmask(phba); 3262 } 3263 3264 return; 3265 out: 3266 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3267 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3268 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3269 vport->port_state, sparam_mbox, cfglink_mbox); 3270 lpfc_issue_clear_la(phba, vport); 3271 return; 3272 } 3273 3274 static void 3275 lpfc_enable_la(struct lpfc_hba *phba) 3276 { 3277 uint32_t control; 3278 struct lpfc_sli *psli = &phba->sli; 3279 spin_lock_irq(&phba->hbalock); 3280 psli->sli_flag |= LPFC_PROCESS_LA; 3281 if (phba->sli_rev <= LPFC_SLI_REV3) { 3282 control = readl(phba->HCregaddr); 3283 control |= HC_LAINT_ENA; 3284 writel(control, phba->HCregaddr); 3285 readl(phba->HCregaddr); /* flush */ 3286 } 3287 spin_unlock_irq(&phba->hbalock); 3288 } 3289 3290 static void 3291 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3292 { 3293 lpfc_linkdown(phba); 3294 lpfc_enable_la(phba); 3295 lpfc_unregister_unused_fcf(phba); 3296 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3297 } 3298 3299 3300 /* 3301 * This routine handles processing a READ_TOPOLOGY mailbox 3302 * command upon completion. It is setup in the LPFC_MBOXQ 3303 * as the completion routine when the command is 3304 * handed off to the SLI layer. SLI4 only. 3305 */ 3306 void 3307 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3308 { 3309 struct lpfc_vport *vport = pmb->vport; 3310 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3311 struct lpfc_mbx_read_top *la; 3312 struct lpfc_sli_ring *pring; 3313 MAILBOX_t *mb = &pmb->u.mb; 3314 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3315 uint8_t attn_type; 3316 3317 /* Unblock ELS traffic */ 3318 pring = lpfc_phba_elsring(phba); 3319 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3320 3321 /* Check for error */ 3322 if (mb->mbxStatus) { 3323 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3324 "1307 READ_LA mbox error x%x state x%x\n", 3325 mb->mbxStatus, vport->port_state); 3326 lpfc_mbx_issue_link_down(phba); 3327 phba->link_state = LPFC_HBA_ERROR; 3328 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3329 } 3330 3331 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3332 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3333 3334 memcpy(&phba->alpa_map[0], mp->virt, 128); 3335 3336 spin_lock_irq(shost->host_lock); 3337 if (bf_get(lpfc_mbx_read_top_pb, la)) 3338 vport->fc_flag |= FC_BYPASSED_MODE; 3339 else 3340 vport->fc_flag &= ~FC_BYPASSED_MODE; 3341 spin_unlock_irq(shost->host_lock); 3342 3343 if (phba->fc_eventTag <= la->eventTag) { 3344 phba->fc_stat.LinkMultiEvent++; 3345 if (attn_type == LPFC_ATT_LINK_UP) 3346 if (phba->fc_eventTag != 0) 3347 lpfc_linkdown(phba); 3348 } 3349 3350 phba->fc_eventTag = la->eventTag; 3351 if (phba->sli_rev < LPFC_SLI_REV4) { 3352 spin_lock_irq(&phba->hbalock); 3353 if (bf_get(lpfc_mbx_read_top_mm, la)) 3354 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3355 else 3356 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3357 spin_unlock_irq(&phba->hbalock); 3358 } 3359 3360 phba->link_events++; 3361 if ((attn_type == LPFC_ATT_LINK_UP) && 3362 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3363 phba->fc_stat.LinkUp++; 3364 if (phba->link_flag & LS_LOOPBACK_MODE) { 3365 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3366 "1306 Link Up Event in loop back mode " 3367 "x%x received Data: x%x x%x x%x x%x\n", 3368 la->eventTag, phba->fc_eventTag, 3369 bf_get(lpfc_mbx_read_top_alpa_granted, 3370 la), 3371 bf_get(lpfc_mbx_read_top_link_spd, la), 3372 phba->alpa_map[0]); 3373 } else { 3374 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3375 "1303 Link Up Event x%x received " 3376 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3377 la->eventTag, phba->fc_eventTag, 3378 bf_get(lpfc_mbx_read_top_alpa_granted, 3379 la), 3380 bf_get(lpfc_mbx_read_top_link_spd, la), 3381 phba->alpa_map[0], 3382 bf_get(lpfc_mbx_read_top_mm, la), 3383 bf_get(lpfc_mbx_read_top_fa, la), 3384 phba->wait_4_mlo_maint_flg); 3385 } 3386 lpfc_mbx_process_link_up(phba, la); 3387 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3388 attn_type == LPFC_ATT_UNEXP_WWPN) { 3389 phba->fc_stat.LinkDown++; 3390 if (phba->link_flag & LS_LOOPBACK_MODE) 3391 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3392 "1308 Link Down Event in loop back mode " 3393 "x%x received " 3394 "Data: x%x x%x x%x\n", 3395 la->eventTag, phba->fc_eventTag, 3396 phba->pport->port_state, vport->fc_flag); 3397 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3398 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3399 "1313 Link Down UNEXP WWPN Event x%x received " 3400 "Data: x%x x%x x%x x%x x%x\n", 3401 la->eventTag, phba->fc_eventTag, 3402 phba->pport->port_state, vport->fc_flag, 3403 bf_get(lpfc_mbx_read_top_mm, la), 3404 bf_get(lpfc_mbx_read_top_fa, la)); 3405 else 3406 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3407 "1305 Link Down Event x%x received " 3408 "Data: x%x x%x x%x x%x x%x\n", 3409 la->eventTag, phba->fc_eventTag, 3410 phba->pport->port_state, vport->fc_flag, 3411 bf_get(lpfc_mbx_read_top_mm, la), 3412 bf_get(lpfc_mbx_read_top_fa, la)); 3413 lpfc_mbx_issue_link_down(phba); 3414 } 3415 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3416 attn_type == LPFC_ATT_LINK_UP) { 3417 if (phba->link_state != LPFC_LINK_DOWN) { 3418 phba->fc_stat.LinkDown++; 3419 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3420 "1312 Link Down Event x%x received " 3421 "Data: x%x x%x x%x\n", 3422 la->eventTag, phba->fc_eventTag, 3423 phba->pport->port_state, vport->fc_flag); 3424 lpfc_mbx_issue_link_down(phba); 3425 } else 3426 lpfc_enable_la(phba); 3427 3428 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3429 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3430 "Data: x%x x%x x%x\n", 3431 la->eventTag, phba->fc_eventTag, 3432 phba->pport->port_state, vport->fc_flag); 3433 /* 3434 * The cmnd that triggered this will be waiting for this 3435 * signal. 3436 */ 3437 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3438 if (phba->wait_4_mlo_maint_flg) { 3439 phba->wait_4_mlo_maint_flg = 0; 3440 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3441 } 3442 } 3443 3444 if ((phba->sli_rev < LPFC_SLI_REV4) && 3445 bf_get(lpfc_mbx_read_top_fa, la)) { 3446 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3447 lpfc_issue_clear_la(phba, vport); 3448 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3449 "1311 fa %d\n", 3450 bf_get(lpfc_mbx_read_top_fa, la)); 3451 } 3452 3453 lpfc_mbx_cmpl_read_topology_free_mbuf: 3454 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3455 kfree(mp); 3456 mempool_free(pmb, phba->mbox_mem_pool); 3457 return; 3458 } 3459 3460 /* 3461 * This routine handles processing a REG_LOGIN mailbox 3462 * command upon completion. It is setup in the LPFC_MBOXQ 3463 * as the completion routine when the command is 3464 * handed off to the SLI layer. 3465 */ 3466 void 3467 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3468 { 3469 struct lpfc_vport *vport = pmb->vport; 3470 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3471 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3472 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3473 3474 pmb->context1 = NULL; 3475 pmb->context2 = NULL; 3476 3477 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3478 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3479 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3480 kref_read(&ndlp->kref), 3481 ndlp->nlp_usg_map, ndlp); 3482 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3483 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3484 3485 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3486 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3487 /* We rcvd a rscn after issuing this 3488 * mbox reg login, we may have cycled 3489 * back through the state and be 3490 * back at reg login state so this 3491 * mbox needs to be ignored becase 3492 * there is another reg login in 3493 * process. 3494 */ 3495 spin_lock_irq(shost->host_lock); 3496 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3497 spin_unlock_irq(shost->host_lock); 3498 3499 /* 3500 * We cannot leave the RPI registered because 3501 * if we go thru discovery again for this ndlp 3502 * a subsequent REG_RPI will fail. 3503 */ 3504 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3505 lpfc_unreg_rpi(vport, ndlp); 3506 } 3507 3508 /* Call state machine */ 3509 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3510 3511 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3512 kfree(mp); 3513 mempool_free(pmb, phba->mbox_mem_pool); 3514 /* decrement the node reference count held for this callback 3515 * function. 3516 */ 3517 lpfc_nlp_put(ndlp); 3518 3519 return; 3520 } 3521 3522 static void 3523 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3524 { 3525 MAILBOX_t *mb = &pmb->u.mb; 3526 struct lpfc_vport *vport = pmb->vport; 3527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3528 3529 switch (mb->mbxStatus) { 3530 case 0x0011: 3531 case 0x0020: 3532 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3533 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3534 mb->mbxStatus); 3535 break; 3536 /* If VPI is busy, reset the HBA */ 3537 case 0x9700: 3538 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3539 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3540 vport->vpi, mb->mbxStatus); 3541 if (!(phba->pport->load_flag & FC_UNLOADING)) 3542 lpfc_workq_post_event(phba, NULL, NULL, 3543 LPFC_EVT_RESET_HBA); 3544 } 3545 spin_lock_irq(shost->host_lock); 3546 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3547 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3548 spin_unlock_irq(shost->host_lock); 3549 vport->unreg_vpi_cmpl = VPORT_OK; 3550 mempool_free(pmb, phba->mbox_mem_pool); 3551 lpfc_cleanup_vports_rrqs(vport, NULL); 3552 /* 3553 * This shost reference might have been taken at the beginning of 3554 * lpfc_vport_delete() 3555 */ 3556 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3557 scsi_host_put(shost); 3558 } 3559 3560 int 3561 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3562 { 3563 struct lpfc_hba *phba = vport->phba; 3564 LPFC_MBOXQ_t *mbox; 3565 int rc; 3566 3567 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3568 if (!mbox) 3569 return 1; 3570 3571 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3572 mbox->vport = vport; 3573 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3574 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3575 if (rc == MBX_NOT_FINISHED) { 3576 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3577 "1800 Could not issue unreg_vpi\n"); 3578 mempool_free(mbox, phba->mbox_mem_pool); 3579 vport->unreg_vpi_cmpl = VPORT_ERROR; 3580 return rc; 3581 } 3582 return 0; 3583 } 3584 3585 static void 3586 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3587 { 3588 struct lpfc_vport *vport = pmb->vport; 3589 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3590 MAILBOX_t *mb = &pmb->u.mb; 3591 3592 switch (mb->mbxStatus) { 3593 case 0x0011: 3594 case 0x9601: 3595 case 0x9602: 3596 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3597 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3598 mb->mbxStatus); 3599 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3600 spin_lock_irq(shost->host_lock); 3601 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3602 spin_unlock_irq(shost->host_lock); 3603 vport->fc_myDID = 0; 3604 3605 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3606 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3607 if (phba->nvmet_support) 3608 lpfc_nvmet_update_targetport(phba); 3609 else 3610 lpfc_nvme_update_localport(vport); 3611 } 3612 goto out; 3613 } 3614 3615 spin_lock_irq(shost->host_lock); 3616 vport->vpi_state |= LPFC_VPI_REGISTERED; 3617 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3618 spin_unlock_irq(shost->host_lock); 3619 vport->num_disc_nodes = 0; 3620 /* go thru NPR list and issue ELS PLOGIs */ 3621 if (vport->fc_npr_cnt) 3622 lpfc_els_disc_plogi(vport); 3623 3624 if (!vport->num_disc_nodes) { 3625 spin_lock_irq(shost->host_lock); 3626 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3627 spin_unlock_irq(shost->host_lock); 3628 lpfc_can_disctmo(vport); 3629 } 3630 vport->port_state = LPFC_VPORT_READY; 3631 3632 out: 3633 mempool_free(pmb, phba->mbox_mem_pool); 3634 return; 3635 } 3636 3637 /** 3638 * lpfc_create_static_vport - Read HBA config region to create static vports. 3639 * @phba: pointer to lpfc hba data structure. 3640 * 3641 * This routine issue a DUMP mailbox command for config region 22 to get 3642 * the list of static vports to be created. The function create vports 3643 * based on the information returned from the HBA. 3644 **/ 3645 void 3646 lpfc_create_static_vport(struct lpfc_hba *phba) 3647 { 3648 LPFC_MBOXQ_t *pmb = NULL; 3649 MAILBOX_t *mb; 3650 struct static_vport_info *vport_info; 3651 int mbx_wait_rc = 0, i; 3652 struct fc_vport_identifiers vport_id; 3653 struct fc_vport *new_fc_vport; 3654 struct Scsi_Host *shost; 3655 struct lpfc_vport *vport; 3656 uint16_t offset = 0; 3657 uint8_t *vport_buff; 3658 struct lpfc_dmabuf *mp; 3659 uint32_t byte_count = 0; 3660 3661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3662 if (!pmb) { 3663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3664 "0542 lpfc_create_static_vport failed to" 3665 " allocate mailbox memory\n"); 3666 return; 3667 } 3668 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3669 mb = &pmb->u.mb; 3670 3671 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3672 if (!vport_info) { 3673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3674 "0543 lpfc_create_static_vport failed to" 3675 " allocate vport_info\n"); 3676 mempool_free(pmb, phba->mbox_mem_pool); 3677 return; 3678 } 3679 3680 vport_buff = (uint8_t *) vport_info; 3681 do { 3682 /* free dma buffer from previous round */ 3683 if (pmb->context1) { 3684 mp = (struct lpfc_dmabuf *)pmb->context1; 3685 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3686 kfree(mp); 3687 } 3688 if (lpfc_dump_static_vport(phba, pmb, offset)) 3689 goto out; 3690 3691 pmb->vport = phba->pport; 3692 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3693 LPFC_MBOX_TMO); 3694 3695 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3696 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3697 "0544 lpfc_create_static_vport failed to" 3698 " issue dump mailbox command ret 0x%x " 3699 "status 0x%x\n", 3700 mbx_wait_rc, mb->mbxStatus); 3701 goto out; 3702 } 3703 3704 if (phba->sli_rev == LPFC_SLI_REV4) { 3705 byte_count = pmb->u.mqe.un.mb_words[5]; 3706 mp = (struct lpfc_dmabuf *)pmb->context1; 3707 if (byte_count > sizeof(struct static_vport_info) - 3708 offset) 3709 byte_count = sizeof(struct static_vport_info) 3710 - offset; 3711 memcpy(vport_buff + offset, mp->virt, byte_count); 3712 offset += byte_count; 3713 } else { 3714 if (mb->un.varDmp.word_cnt > 3715 sizeof(struct static_vport_info) - offset) 3716 mb->un.varDmp.word_cnt = 3717 sizeof(struct static_vport_info) 3718 - offset; 3719 byte_count = mb->un.varDmp.word_cnt; 3720 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3721 vport_buff + offset, 3722 byte_count); 3723 3724 offset += byte_count; 3725 } 3726 3727 } while (byte_count && 3728 offset < sizeof(struct static_vport_info)); 3729 3730 3731 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3732 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3733 != VPORT_INFO_REV)) { 3734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3735 "0545 lpfc_create_static_vport bad" 3736 " information header 0x%x 0x%x\n", 3737 le32_to_cpu(vport_info->signature), 3738 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3739 3740 goto out; 3741 } 3742 3743 shost = lpfc_shost_from_vport(phba->pport); 3744 3745 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3746 memset(&vport_id, 0, sizeof(vport_id)); 3747 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3748 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3749 if (!vport_id.port_name || !vport_id.node_name) 3750 continue; 3751 3752 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3753 vport_id.vport_type = FC_PORTTYPE_NPIV; 3754 vport_id.disable = false; 3755 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3756 3757 if (!new_fc_vport) { 3758 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3759 "0546 lpfc_create_static_vport failed to" 3760 " create vport\n"); 3761 continue; 3762 } 3763 3764 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3765 vport->vport_flag |= STATIC_VPORT; 3766 } 3767 3768 out: 3769 kfree(vport_info); 3770 if (mbx_wait_rc != MBX_TIMEOUT) { 3771 if (pmb->context1) { 3772 mp = (struct lpfc_dmabuf *)pmb->context1; 3773 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3774 kfree(mp); 3775 } 3776 mempool_free(pmb, phba->mbox_mem_pool); 3777 } 3778 3779 return; 3780 } 3781 3782 /* 3783 * This routine handles processing a Fabric REG_LOGIN mailbox 3784 * command upon completion. It is setup in the LPFC_MBOXQ 3785 * as the completion routine when the command is 3786 * handed off to the SLI layer. 3787 */ 3788 void 3789 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3790 { 3791 struct lpfc_vport *vport = pmb->vport; 3792 MAILBOX_t *mb = &pmb->u.mb; 3793 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3794 struct lpfc_nodelist *ndlp; 3795 struct Scsi_Host *shost; 3796 3797 ndlp = (struct lpfc_nodelist *) pmb->context2; 3798 pmb->context1 = NULL; 3799 pmb->context2 = NULL; 3800 3801 if (mb->mbxStatus) { 3802 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3803 "0258 Register Fabric login error: 0x%x\n", 3804 mb->mbxStatus); 3805 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3806 kfree(mp); 3807 mempool_free(pmb, phba->mbox_mem_pool); 3808 3809 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3810 /* FLOGI failed, use loop map to make discovery list */ 3811 lpfc_disc_list_loopmap(vport); 3812 3813 /* Start discovery */ 3814 lpfc_disc_start(vport); 3815 /* Decrement the reference count to ndlp after the 3816 * reference to the ndlp are done. 3817 */ 3818 lpfc_nlp_put(ndlp); 3819 return; 3820 } 3821 3822 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3823 /* Decrement the reference count to ndlp after the reference 3824 * to the ndlp are done. 3825 */ 3826 lpfc_nlp_put(ndlp); 3827 return; 3828 } 3829 3830 if (phba->sli_rev < LPFC_SLI_REV4) 3831 ndlp->nlp_rpi = mb->un.varWords[0]; 3832 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3833 ndlp->nlp_type |= NLP_FABRIC; 3834 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3835 3836 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3837 /* when physical port receive logo donot start 3838 * vport discovery */ 3839 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3840 lpfc_start_fdiscs(phba); 3841 else { 3842 shost = lpfc_shost_from_vport(vport); 3843 spin_lock_irq(shost->host_lock); 3844 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3845 spin_unlock_irq(shost->host_lock); 3846 } 3847 lpfc_do_scr_ns_plogi(phba, vport); 3848 } 3849 3850 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3851 kfree(mp); 3852 mempool_free(pmb, phba->mbox_mem_pool); 3853 3854 /* Drop the reference count from the mbox at the end after 3855 * all the current reference to the ndlp have been done. 3856 */ 3857 lpfc_nlp_put(ndlp); 3858 return; 3859 } 3860 3861 /* 3862 * This routine will issue a GID_FT for each FC4 Type supported 3863 * by the driver. ALL GID_FTs must complete before discovery is started. 3864 */ 3865 int 3866 lpfc_issue_gidft(struct lpfc_vport *vport) 3867 { 3868 struct lpfc_hba *phba = vport->phba; 3869 3870 /* Good status, issue CT Request to NameServer */ 3871 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3872 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3873 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3874 /* Cannot issue NameServer FCP Query, so finish up 3875 * discovery 3876 */ 3877 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3878 "0604 %s FC TYPE %x %s\n", 3879 "Failed to issue GID_FT to ", 3880 FC_TYPE_FCP, 3881 "Finishing discovery."); 3882 return 0; 3883 } 3884 vport->gidft_inp++; 3885 } 3886 3887 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3888 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3889 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3890 /* Cannot issue NameServer NVME Query, so finish up 3891 * discovery 3892 */ 3893 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3894 "0605 %s FC_TYPE %x %s %d\n", 3895 "Failed to issue GID_FT to ", 3896 FC_TYPE_NVME, 3897 "Finishing discovery: gidftinp ", 3898 vport->gidft_inp); 3899 if (vport->gidft_inp == 0) 3900 return 0; 3901 } else 3902 vport->gidft_inp++; 3903 } 3904 return vport->gidft_inp; 3905 } 3906 3907 /* 3908 * This routine handles processing a NameServer REG_LOGIN mailbox 3909 * command upon completion. It is setup in the LPFC_MBOXQ 3910 * as the completion routine when the command is 3911 * handed off to the SLI layer. 3912 */ 3913 void 3914 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3915 { 3916 MAILBOX_t *mb = &pmb->u.mb; 3917 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3918 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3919 struct lpfc_vport *vport = pmb->vport; 3920 3921 pmb->context1 = NULL; 3922 pmb->context2 = NULL; 3923 vport->gidft_inp = 0; 3924 3925 if (mb->mbxStatus) { 3926 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3927 "0260 Register NameServer error: 0x%x\n", 3928 mb->mbxStatus); 3929 3930 out: 3931 /* decrement the node reference count held for this 3932 * callback function. 3933 */ 3934 lpfc_nlp_put(ndlp); 3935 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3936 kfree(mp); 3937 mempool_free(pmb, phba->mbox_mem_pool); 3938 3939 /* If no other thread is using the ndlp, free it */ 3940 lpfc_nlp_not_used(ndlp); 3941 3942 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3943 /* 3944 * RegLogin failed, use loop map to make discovery 3945 * list 3946 */ 3947 lpfc_disc_list_loopmap(vport); 3948 3949 /* Start discovery */ 3950 lpfc_disc_start(vport); 3951 return; 3952 } 3953 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3954 return; 3955 } 3956 3957 if (phba->sli_rev < LPFC_SLI_REV4) 3958 ndlp->nlp_rpi = mb->un.varWords[0]; 3959 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3960 ndlp->nlp_type |= NLP_FABRIC; 3961 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3962 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3963 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3964 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3965 kref_read(&ndlp->kref), 3966 ndlp->nlp_usg_map, ndlp); 3967 3968 if (vport->port_state < LPFC_VPORT_READY) { 3969 /* Link up discovery requires Fabric registration. */ 3970 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3971 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3972 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3973 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3974 3975 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3976 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 3977 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 3978 3979 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3980 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 3981 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 3982 FC_TYPE_NVME); 3983 3984 /* Issue SCR just before NameServer GID_FT Query */ 3985 lpfc_issue_els_scr(vport, SCR_DID, 0); 3986 } 3987 3988 vport->fc_ns_retry = 0; 3989 if (lpfc_issue_gidft(vport) == 0) 3990 goto out; 3991 3992 /* 3993 * At this point in time we may need to wait for multiple 3994 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 3995 * 3996 * decrement the node reference count held for this 3997 * callback function. 3998 */ 3999 lpfc_nlp_put(ndlp); 4000 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4001 kfree(mp); 4002 mempool_free(pmb, phba->mbox_mem_pool); 4003 4004 return; 4005 } 4006 4007 static void 4008 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4009 { 4010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4011 struct fc_rport *rport; 4012 struct lpfc_rport_data *rdata; 4013 struct fc_rport_identifiers rport_ids; 4014 struct lpfc_hba *phba = vport->phba; 4015 4016 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4017 return; 4018 4019 /* Remote port has reappeared. Re-register w/ FC transport */ 4020 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4021 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4022 rport_ids.port_id = ndlp->nlp_DID; 4023 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4024 4025 /* 4026 * We leave our node pointer in rport->dd_data when we unregister a 4027 * FCP target port. But fc_remote_port_add zeros the space to which 4028 * rport->dd_data points. So, if we're reusing a previously 4029 * registered port, drop the reference that we took the last time we 4030 * registered the port. 4031 */ 4032 rport = ndlp->rport; 4033 if (rport) { 4034 rdata = rport->dd_data; 4035 /* break the link before dropping the ref */ 4036 ndlp->rport = NULL; 4037 if (rdata) { 4038 if (rdata->pnode == ndlp) 4039 lpfc_nlp_put(ndlp); 4040 rdata->pnode = NULL; 4041 } 4042 /* drop reference for earlier registeration */ 4043 put_device(&rport->dev); 4044 } 4045 4046 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4047 "rport add: did:x%x flg:x%x type x%x", 4048 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4049 4050 /* Don't add the remote port if unloading. */ 4051 if (vport->load_flag & FC_UNLOADING) 4052 return; 4053 4054 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4055 if (!rport || !get_device(&rport->dev)) { 4056 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4057 "Warning: fc_remote_port_add failed\n"); 4058 return; 4059 } 4060 4061 /* initialize static port data */ 4062 rport->maxframe_size = ndlp->nlp_maxframe; 4063 rport->supported_classes = ndlp->nlp_class_sup; 4064 rdata = rport->dd_data; 4065 rdata->pnode = lpfc_nlp_get(ndlp); 4066 4067 if (ndlp->nlp_type & NLP_FCP_TARGET) 4068 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4069 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4070 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4071 4072 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4073 fc_remote_port_rolechg(rport, rport_ids.roles); 4074 4075 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4076 "3183 rport register x%06x, rport %p role x%x\n", 4077 ndlp->nlp_DID, rport, rport_ids.roles); 4078 4079 if ((rport->scsi_target_id != -1) && 4080 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4081 ndlp->nlp_sid = rport->scsi_target_id; 4082 } 4083 return; 4084 } 4085 4086 static void 4087 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4088 { 4089 struct fc_rport *rport = ndlp->rport; 4090 struct lpfc_vport *vport = ndlp->vport; 4091 struct lpfc_hba *phba = vport->phba; 4092 4093 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4094 return; 4095 4096 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4097 "rport delete: did:x%x flg:x%x type x%x", 4098 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4099 4100 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4101 "3184 rport unregister x%06x, rport %p\n", 4102 ndlp->nlp_DID, rport); 4103 4104 fc_remote_port_delete(rport); 4105 4106 return; 4107 } 4108 4109 static void 4110 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4111 { 4112 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4113 4114 spin_lock_irq(shost->host_lock); 4115 switch (state) { 4116 case NLP_STE_UNUSED_NODE: 4117 vport->fc_unused_cnt += count; 4118 break; 4119 case NLP_STE_PLOGI_ISSUE: 4120 vport->fc_plogi_cnt += count; 4121 break; 4122 case NLP_STE_ADISC_ISSUE: 4123 vport->fc_adisc_cnt += count; 4124 break; 4125 case NLP_STE_REG_LOGIN_ISSUE: 4126 vport->fc_reglogin_cnt += count; 4127 break; 4128 case NLP_STE_PRLI_ISSUE: 4129 vport->fc_prli_cnt += count; 4130 break; 4131 case NLP_STE_UNMAPPED_NODE: 4132 vport->fc_unmap_cnt += count; 4133 break; 4134 case NLP_STE_MAPPED_NODE: 4135 vport->fc_map_cnt += count; 4136 break; 4137 case NLP_STE_NPR_NODE: 4138 if (vport->fc_npr_cnt == 0 && count == -1) 4139 vport->fc_npr_cnt = 0; 4140 else 4141 vport->fc_npr_cnt += count; 4142 break; 4143 } 4144 spin_unlock_irq(shost->host_lock); 4145 } 4146 4147 static void 4148 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4149 int old_state, int new_state) 4150 { 4151 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4152 4153 if (new_state == NLP_STE_UNMAPPED_NODE) { 4154 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4155 ndlp->nlp_type |= NLP_FC_NODE; 4156 } 4157 if (new_state == NLP_STE_MAPPED_NODE) 4158 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4159 if (new_state == NLP_STE_NPR_NODE) 4160 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4161 4162 /* FCP and NVME Transport interface */ 4163 if ((old_state == NLP_STE_MAPPED_NODE || 4164 old_state == NLP_STE_UNMAPPED_NODE)) { 4165 if (ndlp->rport) { 4166 vport->phba->nport_event_cnt++; 4167 lpfc_unregister_remote_port(ndlp); 4168 } 4169 4170 /* Notify the NVME transport of this rport's loss on the 4171 * Initiator. For NVME Target, should upcall transport 4172 * in the else clause when API available. 4173 */ 4174 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4175 vport->phba->nport_event_cnt++; 4176 if (vport->phba->nvmet_support == 0) 4177 lpfc_nvme_unregister_port(vport, ndlp); 4178 } 4179 } 4180 4181 /* FCP and NVME Transport interfaces */ 4182 4183 if (new_state == NLP_STE_MAPPED_NODE || 4184 new_state == NLP_STE_UNMAPPED_NODE) { 4185 if ((ndlp->nlp_fc4_type & NLP_FC4_FCP) || 4186 (ndlp->nlp_DID == Fabric_DID)) { 4187 vport->phba->nport_event_cnt++; 4188 /* 4189 * Tell the fc transport about the port, if we haven't 4190 * already. If we have, and it's a scsi entity, be 4191 */ 4192 lpfc_register_remote_port(vport, ndlp); 4193 } 4194 /* Notify the NVME transport of this new rport. */ 4195 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4196 if (vport->phba->nvmet_support == 0) { 4197 /* Register this rport with the transport. 4198 * Initiators take the NDLP ref count in 4199 * the register. 4200 */ 4201 vport->phba->nport_event_cnt++; 4202 lpfc_nvme_register_port(vport, ndlp); 4203 } else { 4204 /* Just take an NDLP ref count since the 4205 * target does not register rports. 4206 */ 4207 lpfc_nlp_get(ndlp); 4208 } 4209 } 4210 } 4211 4212 if ((new_state == NLP_STE_MAPPED_NODE) && 4213 (vport->stat_data_enabled)) { 4214 /* 4215 * A new target is discovered, if there is no buffer for 4216 * statistical data collection allocate buffer. 4217 */ 4218 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4219 sizeof(struct lpfc_scsicmd_bkt), 4220 GFP_KERNEL); 4221 4222 if (!ndlp->lat_data) 4223 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4224 "0286 lpfc_nlp_state_cleanup failed to " 4225 "allocate statistical data buffer DID " 4226 "0x%x\n", ndlp->nlp_DID); 4227 } 4228 /* 4229 * If the node just added to Mapped list was an FCP target, 4230 * but the remote port registration failed or assigned a target 4231 * id outside the presentable range - move the node to the 4232 * Unmapped List. 4233 */ 4234 if ((new_state == NLP_STE_MAPPED_NODE) && 4235 (ndlp->nlp_type & NLP_FCP_TARGET) && 4236 (!ndlp->rport || 4237 ndlp->rport->scsi_target_id == -1 || 4238 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4239 spin_lock_irq(shost->host_lock); 4240 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4241 spin_unlock_irq(shost->host_lock); 4242 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4243 } 4244 } 4245 4246 static char * 4247 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4248 { 4249 static char *states[] = { 4250 [NLP_STE_UNUSED_NODE] = "UNUSED", 4251 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4252 [NLP_STE_ADISC_ISSUE] = "ADISC", 4253 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4254 [NLP_STE_PRLI_ISSUE] = "PRLI", 4255 [NLP_STE_LOGO_ISSUE] = "LOGO", 4256 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4257 [NLP_STE_MAPPED_NODE] = "MAPPED", 4258 [NLP_STE_NPR_NODE] = "NPR", 4259 }; 4260 4261 if (state < NLP_STE_MAX_STATE && states[state]) 4262 strlcpy(buffer, states[state], size); 4263 else 4264 snprintf(buffer, size, "unknown (%d)", state); 4265 return buffer; 4266 } 4267 4268 void 4269 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4270 int state) 4271 { 4272 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4273 int old_state = ndlp->nlp_state; 4274 char name1[16], name2[16]; 4275 4276 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4277 "0904 NPort state transition x%06x, %s -> %s\n", 4278 ndlp->nlp_DID, 4279 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4280 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4281 4282 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4283 "node statechg did:x%x old:%d ste:%d", 4284 ndlp->nlp_DID, old_state, state); 4285 4286 if (old_state == NLP_STE_NPR_NODE && 4287 state != NLP_STE_NPR_NODE) 4288 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4289 if (old_state == NLP_STE_UNMAPPED_NODE) { 4290 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4291 ndlp->nlp_type &= ~NLP_FC_NODE; 4292 } 4293 4294 if (list_empty(&ndlp->nlp_listp)) { 4295 spin_lock_irq(shost->host_lock); 4296 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4297 spin_unlock_irq(shost->host_lock); 4298 } else if (old_state) 4299 lpfc_nlp_counters(vport, old_state, -1); 4300 4301 ndlp->nlp_state = state; 4302 lpfc_nlp_counters(vport, state, 1); 4303 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4304 } 4305 4306 void 4307 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4308 { 4309 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4310 4311 if (list_empty(&ndlp->nlp_listp)) { 4312 spin_lock_irq(shost->host_lock); 4313 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4314 spin_unlock_irq(shost->host_lock); 4315 } 4316 } 4317 4318 void 4319 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4320 { 4321 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4322 4323 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4324 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4325 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4326 spin_lock_irq(shost->host_lock); 4327 list_del_init(&ndlp->nlp_listp); 4328 spin_unlock_irq(shost->host_lock); 4329 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4330 NLP_STE_UNUSED_NODE); 4331 } 4332 4333 static void 4334 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4335 { 4336 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4337 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4338 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4339 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4340 NLP_STE_UNUSED_NODE); 4341 } 4342 /** 4343 * lpfc_initialize_node - Initialize all fields of node object 4344 * @vport: Pointer to Virtual Port object. 4345 * @ndlp: Pointer to FC node object. 4346 * @did: FC_ID of the node. 4347 * 4348 * This function is always called when node object need to be initialized. 4349 * It initializes all the fields of the node object. Although the reference 4350 * to phba from @ndlp can be obtained indirectly through it's reference to 4351 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4352 * to the life-span of the @ndlp might go beyond the existence of @vport as 4353 * the final release of ndlp is determined by its reference count. And, the 4354 * operation on @ndlp needs the reference to phba. 4355 **/ 4356 static inline void 4357 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4358 uint32_t did) 4359 { 4360 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4361 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4362 setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 4363 (unsigned long)ndlp); 4364 ndlp->nlp_DID = did; 4365 ndlp->vport = vport; 4366 ndlp->phba = vport->phba; 4367 ndlp->nlp_sid = NLP_NO_SID; 4368 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4369 kref_init(&ndlp->kref); 4370 NLP_INT_NODE_ACT(ndlp); 4371 atomic_set(&ndlp->cmd_pending, 0); 4372 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4373 } 4374 4375 struct lpfc_nodelist * 4376 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4377 int state) 4378 { 4379 struct lpfc_hba *phba = vport->phba; 4380 uint32_t did; 4381 unsigned long flags; 4382 unsigned long *active_rrqs_xri_bitmap = NULL; 4383 int rpi = LPFC_RPI_ALLOC_ERROR; 4384 4385 if (!ndlp) 4386 return NULL; 4387 4388 if (phba->sli_rev == LPFC_SLI_REV4) { 4389 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4390 if (rpi == LPFC_RPI_ALLOC_ERROR) 4391 return NULL; 4392 } 4393 4394 spin_lock_irqsave(&phba->ndlp_lock, flags); 4395 /* The ndlp should not be in memory free mode */ 4396 if (NLP_CHK_FREE_REQ(ndlp)) { 4397 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4398 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4399 "0277 lpfc_enable_node: ndlp:x%p " 4400 "usgmap:x%x refcnt:%d\n", 4401 (void *)ndlp, ndlp->nlp_usg_map, 4402 kref_read(&ndlp->kref)); 4403 goto free_rpi; 4404 } 4405 /* The ndlp should not already be in active mode */ 4406 if (NLP_CHK_NODE_ACT(ndlp)) { 4407 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4408 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4409 "0278 lpfc_enable_node: ndlp:x%p " 4410 "usgmap:x%x refcnt:%d\n", 4411 (void *)ndlp, ndlp->nlp_usg_map, 4412 kref_read(&ndlp->kref)); 4413 goto free_rpi; 4414 } 4415 4416 /* Keep the original DID */ 4417 did = ndlp->nlp_DID; 4418 if (phba->sli_rev == LPFC_SLI_REV4) 4419 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4420 4421 /* re-initialize ndlp except of ndlp linked list pointer */ 4422 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4423 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4424 lpfc_initialize_node(vport, ndlp, did); 4425 4426 if (phba->sli_rev == LPFC_SLI_REV4) 4427 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4428 4429 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4430 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4431 ndlp->nlp_rpi = rpi; 4432 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4433 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4434 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4435 ndlp->nlp_flag, 4436 kref_read(&ndlp->kref), 4437 ndlp->nlp_usg_map, ndlp); 4438 } 4439 4440 4441 if (state != NLP_STE_UNUSED_NODE) 4442 lpfc_nlp_set_state(vport, ndlp, state); 4443 4444 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4445 "node enable: did:x%x", 4446 ndlp->nlp_DID, 0, 0); 4447 return ndlp; 4448 4449 free_rpi: 4450 if (phba->sli_rev == LPFC_SLI_REV4) 4451 lpfc_sli4_free_rpi(vport->phba, rpi); 4452 return NULL; 4453 } 4454 4455 void 4456 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4457 { 4458 /* 4459 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4460 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4461 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4462 * until ALL other outstanding threads have completed. We check 4463 * that the ndlp not already in the UNUSED state before we proceed. 4464 */ 4465 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4466 return; 4467 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4468 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4469 lpfc_cleanup_vports_rrqs(vport, ndlp); 4470 lpfc_unreg_rpi(vport, ndlp); 4471 } 4472 4473 lpfc_nlp_put(ndlp); 4474 return; 4475 } 4476 4477 /* 4478 * Start / ReStart rescue timer for Discovery / RSCN handling 4479 */ 4480 void 4481 lpfc_set_disctmo(struct lpfc_vport *vport) 4482 { 4483 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4484 struct lpfc_hba *phba = vport->phba; 4485 uint32_t tmo; 4486 4487 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4488 /* For FAN, timeout should be greater than edtov */ 4489 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4490 } else { 4491 /* Normal discovery timeout should be > than ELS/CT timeout 4492 * FC spec states we need 3 * ratov for CT requests 4493 */ 4494 tmo = ((phba->fc_ratov * 3) + 3); 4495 } 4496 4497 4498 if (!timer_pending(&vport->fc_disctmo)) { 4499 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4500 "set disc timer: tmo:x%x state:x%x flg:x%x", 4501 tmo, vport->port_state, vport->fc_flag); 4502 } 4503 4504 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4505 spin_lock_irq(shost->host_lock); 4506 vport->fc_flag |= FC_DISC_TMO; 4507 spin_unlock_irq(shost->host_lock); 4508 4509 /* Start Discovery Timer state <hba_state> */ 4510 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4511 "0247 Start Discovery Timer state x%x " 4512 "Data: x%x x%lx x%x x%x\n", 4513 vport->port_state, tmo, 4514 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4515 vport->fc_adisc_cnt); 4516 4517 return; 4518 } 4519 4520 /* 4521 * Cancel rescue timer for Discovery / RSCN handling 4522 */ 4523 int 4524 lpfc_can_disctmo(struct lpfc_vport *vport) 4525 { 4526 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4527 unsigned long iflags; 4528 4529 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4530 "can disc timer: state:x%x rtry:x%x flg:x%x", 4531 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4532 4533 /* Turn off discovery timer if its running */ 4534 if (vport->fc_flag & FC_DISC_TMO) { 4535 spin_lock_irqsave(shost->host_lock, iflags); 4536 vport->fc_flag &= ~FC_DISC_TMO; 4537 spin_unlock_irqrestore(shost->host_lock, iflags); 4538 del_timer_sync(&vport->fc_disctmo); 4539 spin_lock_irqsave(&vport->work_port_lock, iflags); 4540 vport->work_port_events &= ~WORKER_DISC_TMO; 4541 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4542 } 4543 4544 /* Cancel Discovery Timer state <hba_state> */ 4545 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4546 "0248 Cancel Discovery Timer state x%x " 4547 "Data: x%x x%x x%x\n", 4548 vport->port_state, vport->fc_flag, 4549 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4550 return 0; 4551 } 4552 4553 /* 4554 * Check specified ring for outstanding IOCB on the SLI queue 4555 * Return true if iocb matches the specified nport 4556 */ 4557 int 4558 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4559 struct lpfc_sli_ring *pring, 4560 struct lpfc_iocbq *iocb, 4561 struct lpfc_nodelist *ndlp) 4562 { 4563 IOCB_t *icmd = &iocb->iocb; 4564 struct lpfc_vport *vport = ndlp->vport; 4565 4566 if (iocb->vport != vport) 4567 return 0; 4568 4569 if (pring->ringno == LPFC_ELS_RING) { 4570 switch (icmd->ulpCommand) { 4571 case CMD_GEN_REQUEST64_CR: 4572 if (iocb->context_un.ndlp == ndlp) 4573 return 1; 4574 case CMD_ELS_REQUEST64_CR: 4575 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4576 return 1; 4577 case CMD_XMIT_ELS_RSP64_CX: 4578 if (iocb->context1 == (uint8_t *) ndlp) 4579 return 1; 4580 } 4581 } else if (pring->ringno == LPFC_FCP_RING) { 4582 /* Skip match check if waiting to relogin to FCP target */ 4583 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4584 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4585 return 0; 4586 } 4587 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4588 return 1; 4589 } 4590 } 4591 return 0; 4592 } 4593 4594 static void 4595 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4596 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4597 struct list_head *dequeue_list) 4598 { 4599 struct lpfc_iocbq *iocb, *next_iocb; 4600 4601 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4602 /* Check to see if iocb matches the nport */ 4603 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4604 /* match, dequeue */ 4605 list_move_tail(&iocb->list, dequeue_list); 4606 } 4607 } 4608 4609 static void 4610 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4611 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4612 { 4613 struct lpfc_sli *psli = &phba->sli; 4614 uint32_t i; 4615 4616 spin_lock_irq(&phba->hbalock); 4617 for (i = 0; i < psli->num_rings; i++) 4618 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4619 dequeue_list); 4620 spin_unlock_irq(&phba->hbalock); 4621 } 4622 4623 static void 4624 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4625 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4626 { 4627 struct lpfc_sli_ring *pring; 4628 struct lpfc_queue *qp = NULL; 4629 4630 spin_lock_irq(&phba->hbalock); 4631 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4632 pring = qp->pring; 4633 if (!pring) 4634 continue; 4635 spin_lock(&pring->ring_lock); 4636 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4637 spin_unlock(&pring->ring_lock); 4638 } 4639 spin_unlock_irq(&phba->hbalock); 4640 } 4641 4642 /* 4643 * Free resources / clean up outstanding I/Os 4644 * associated with nlp_rpi in the LPFC_NODELIST entry. 4645 */ 4646 static int 4647 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4648 { 4649 LIST_HEAD(completions); 4650 4651 lpfc_fabric_abort_nport(ndlp); 4652 4653 /* 4654 * Everything that matches on txcmplq will be returned 4655 * by firmware with a no rpi error. 4656 */ 4657 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4658 if (phba->sli_rev != LPFC_SLI_REV4) 4659 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4660 else 4661 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4662 } 4663 4664 /* Cancel all the IOCBs from the completions list */ 4665 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4666 IOERR_SLI_ABORTED); 4667 4668 return 0; 4669 } 4670 4671 /** 4672 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4673 * @phba: Pointer to HBA context object. 4674 * @pmb: Pointer to mailbox object. 4675 * 4676 * This function will issue an ELS LOGO command after completing 4677 * the UNREG_RPI. 4678 **/ 4679 static void 4680 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4681 { 4682 struct lpfc_vport *vport = pmb->vport; 4683 struct lpfc_nodelist *ndlp; 4684 4685 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4686 if (!ndlp) 4687 return; 4688 lpfc_issue_els_logo(vport, ndlp, 0); 4689 mempool_free(pmb, phba->mbox_mem_pool); 4690 } 4691 4692 /* 4693 * Free rpi associated with LPFC_NODELIST entry. 4694 * This routine is called from lpfc_freenode(), when we are removing 4695 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4696 * LOGO that completes successfully, and we are waiting to PLOGI back 4697 * to the remote NPort. In addition, it is called after we receive 4698 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4699 * we are waiting to PLOGI back to the remote NPort. 4700 */ 4701 int 4702 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4703 { 4704 struct lpfc_hba *phba = vport->phba; 4705 LPFC_MBOXQ_t *mbox; 4706 int rc, acc_plogi = 1; 4707 uint16_t rpi; 4708 4709 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4710 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4711 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4712 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4713 "3366 RPI x%x needs to be " 4714 "unregistered nlp_flag x%x " 4715 "did x%x\n", 4716 ndlp->nlp_rpi, ndlp->nlp_flag, 4717 ndlp->nlp_DID); 4718 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4719 if (mbox) { 4720 /* SLI4 ports require the physical rpi value. */ 4721 rpi = ndlp->nlp_rpi; 4722 if (phba->sli_rev == LPFC_SLI_REV4) 4723 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4724 4725 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4726 mbox->vport = vport; 4727 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4728 mbox->context1 = ndlp; 4729 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4730 } else { 4731 if (phba->sli_rev == LPFC_SLI_REV4 && 4732 (!(vport->load_flag & FC_UNLOADING)) && 4733 (bf_get(lpfc_sli_intf_if_type, 4734 &phba->sli4_hba.sli_intf) == 4735 LPFC_SLI_INTF_IF_TYPE_2) && 4736 (kref_read(&ndlp->kref) > 0)) { 4737 mbox->context1 = lpfc_nlp_get(ndlp); 4738 mbox->mbox_cmpl = 4739 lpfc_sli4_unreg_rpi_cmpl_clr; 4740 /* 4741 * accept PLOGIs after unreg_rpi_cmpl 4742 */ 4743 acc_plogi = 0; 4744 } else 4745 mbox->mbox_cmpl = 4746 lpfc_sli_def_mbox_cmpl; 4747 } 4748 4749 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4750 if (rc == MBX_NOT_FINISHED) { 4751 mempool_free(mbox, phba->mbox_mem_pool); 4752 acc_plogi = 1; 4753 } 4754 } 4755 lpfc_no_rpi(phba, ndlp); 4756 4757 if (phba->sli_rev != LPFC_SLI_REV4) 4758 ndlp->nlp_rpi = 0; 4759 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4760 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4761 if (acc_plogi) 4762 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4763 return 1; 4764 } 4765 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4766 return 0; 4767 } 4768 4769 /** 4770 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4771 * @phba: pointer to lpfc hba data structure. 4772 * 4773 * This routine is invoked to unregister all the currently registered RPIs 4774 * to the HBA. 4775 **/ 4776 void 4777 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4778 { 4779 struct lpfc_vport **vports; 4780 struct lpfc_nodelist *ndlp; 4781 struct Scsi_Host *shost; 4782 int i; 4783 4784 vports = lpfc_create_vport_work_array(phba); 4785 if (!vports) { 4786 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4787 "2884 Vport array allocation failed \n"); 4788 return; 4789 } 4790 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4791 shost = lpfc_shost_from_vport(vports[i]); 4792 spin_lock_irq(shost->host_lock); 4793 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4794 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4795 /* The mempool_alloc might sleep */ 4796 spin_unlock_irq(shost->host_lock); 4797 lpfc_unreg_rpi(vports[i], ndlp); 4798 spin_lock_irq(shost->host_lock); 4799 } 4800 } 4801 spin_unlock_irq(shost->host_lock); 4802 } 4803 lpfc_destroy_vport_work_array(phba, vports); 4804 } 4805 4806 void 4807 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4808 { 4809 struct lpfc_hba *phba = vport->phba; 4810 LPFC_MBOXQ_t *mbox; 4811 int rc; 4812 4813 if (phba->sli_rev == LPFC_SLI_REV4) { 4814 lpfc_sli4_unreg_all_rpis(vport); 4815 return; 4816 } 4817 4818 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4819 if (mbox) { 4820 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4821 mbox); 4822 mbox->vport = vport; 4823 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4824 mbox->context1 = NULL; 4825 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4826 if (rc != MBX_TIMEOUT) 4827 mempool_free(mbox, phba->mbox_mem_pool); 4828 4829 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4830 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4831 "1836 Could not issue " 4832 "unreg_login(all_rpis) status %d\n", rc); 4833 } 4834 } 4835 4836 void 4837 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4838 { 4839 struct lpfc_hba *phba = vport->phba; 4840 LPFC_MBOXQ_t *mbox; 4841 int rc; 4842 4843 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4844 if (mbox) { 4845 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4846 mbox); 4847 mbox->vport = vport; 4848 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4849 mbox->context1 = NULL; 4850 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4851 if (rc != MBX_TIMEOUT) 4852 mempool_free(mbox, phba->mbox_mem_pool); 4853 4854 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4855 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4856 "1815 Could not issue " 4857 "unreg_did (default rpis) status %d\n", 4858 rc); 4859 } 4860 } 4861 4862 /* 4863 * Free resources associated with LPFC_NODELIST entry 4864 * so it can be freed. 4865 */ 4866 static int 4867 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4868 { 4869 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4870 struct lpfc_hba *phba = vport->phba; 4871 LPFC_MBOXQ_t *mb, *nextmb; 4872 struct lpfc_dmabuf *mp; 4873 4874 /* Cleanup node for NPort <nlp_DID> */ 4875 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4876 "0900 Cleanup node for NPort x%x " 4877 "Data: x%x x%x x%x\n", 4878 ndlp->nlp_DID, ndlp->nlp_flag, 4879 ndlp->nlp_state, ndlp->nlp_rpi); 4880 if (NLP_CHK_FREE_REQ(ndlp)) { 4881 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4882 "0280 lpfc_cleanup_node: ndlp:x%p " 4883 "usgmap:x%x refcnt:%d\n", 4884 (void *)ndlp, ndlp->nlp_usg_map, 4885 kref_read(&ndlp->kref)); 4886 lpfc_dequeue_node(vport, ndlp); 4887 } else { 4888 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4889 "0281 lpfc_cleanup_node: ndlp:x%p " 4890 "usgmap:x%x refcnt:%d\n", 4891 (void *)ndlp, ndlp->nlp_usg_map, 4892 kref_read(&ndlp->kref)); 4893 lpfc_disable_node(vport, ndlp); 4894 } 4895 4896 4897 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4898 4899 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4900 if ((mb = phba->sli.mbox_active)) { 4901 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4902 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4903 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4904 mb->context2 = NULL; 4905 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4906 } 4907 } 4908 4909 spin_lock_irq(&phba->hbalock); 4910 /* Cleanup REG_LOGIN completions which are not yet processed */ 4911 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4912 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4913 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4914 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4915 continue; 4916 4917 mb->context2 = NULL; 4918 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4919 } 4920 4921 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4922 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4923 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4924 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4925 mp = (struct lpfc_dmabuf *) (mb->context1); 4926 if (mp) { 4927 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4928 kfree(mp); 4929 } 4930 list_del(&mb->list); 4931 mempool_free(mb, phba->mbox_mem_pool); 4932 /* We shall not invoke the lpfc_nlp_put to decrement 4933 * the ndlp reference count as we are in the process 4934 * of lpfc_nlp_release. 4935 */ 4936 } 4937 } 4938 spin_unlock_irq(&phba->hbalock); 4939 4940 lpfc_els_abort(phba, ndlp); 4941 4942 spin_lock_irq(shost->host_lock); 4943 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4944 spin_unlock_irq(shost->host_lock); 4945 4946 ndlp->nlp_last_elscmd = 0; 4947 del_timer_sync(&ndlp->nlp_delayfunc); 4948 4949 list_del_init(&ndlp->els_retry_evt.evt_listp); 4950 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4951 lpfc_cleanup_vports_rrqs(vport, ndlp); 4952 lpfc_unreg_rpi(vport, ndlp); 4953 4954 return 0; 4955 } 4956 4957 /* 4958 * Check to see if we can free the nlp back to the freelist. 4959 * If we are in the middle of using the nlp in the discovery state 4960 * machine, defer the free till we reach the end of the state machine. 4961 */ 4962 static void 4963 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4964 { 4965 struct lpfc_hba *phba = vport->phba; 4966 struct lpfc_rport_data *rdata; 4967 struct fc_rport *rport; 4968 LPFC_MBOXQ_t *mbox; 4969 int rc; 4970 4971 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4972 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4973 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4974 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 4975 /* For this case we need to cleanup the default rpi 4976 * allocated by the firmware. 4977 */ 4978 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4979 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4980 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4981 kref_read(&ndlp->kref), 4982 ndlp->nlp_usg_map, ndlp); 4983 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4984 != NULL) { 4985 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4986 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4987 if (rc) { 4988 mempool_free(mbox, phba->mbox_mem_pool); 4989 } 4990 else { 4991 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 4992 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 4993 mbox->vport = vport; 4994 mbox->context2 = ndlp; 4995 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4996 if (rc == MBX_NOT_FINISHED) { 4997 mempool_free(mbox, phba->mbox_mem_pool); 4998 } 4999 } 5000 } 5001 } 5002 lpfc_cleanup_node(vport, ndlp); 5003 5004 /* 5005 * ndlp->rport must be set to NULL before it reaches here 5006 * i.e. break rport/node link before doing lpfc_nlp_put for 5007 * registered rport and then drop the reference of rport. 5008 */ 5009 if (ndlp->rport) { 5010 /* 5011 * extra lpfc_nlp_put dropped the reference of ndlp 5012 * for registered rport so need to cleanup rport 5013 */ 5014 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5015 "0940 removed node x%p DID x%x " 5016 " rport not null %p\n", 5017 ndlp, ndlp->nlp_DID, ndlp->rport); 5018 rport = ndlp->rport; 5019 rdata = rport->dd_data; 5020 rdata->pnode = NULL; 5021 ndlp->rport = NULL; 5022 put_device(&rport->dev); 5023 } 5024 } 5025 5026 static int 5027 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5028 uint32_t did) 5029 { 5030 D_ID mydid, ndlpdid, matchdid; 5031 5032 if (did == Bcast_DID) 5033 return 0; 5034 5035 /* First check for Direct match */ 5036 if (ndlp->nlp_DID == did) 5037 return 1; 5038 5039 /* Next check for area/domain identically equals 0 match */ 5040 mydid.un.word = vport->fc_myDID; 5041 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5042 return 0; 5043 } 5044 5045 matchdid.un.word = did; 5046 ndlpdid.un.word = ndlp->nlp_DID; 5047 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5048 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5049 (mydid.un.b.area == matchdid.un.b.area)) { 5050 /* This code is supposed to match the ID 5051 * for a private loop device that is 5052 * connect to fl_port. But we need to 5053 * check that the port did not just go 5054 * from pt2pt to fabric or we could end 5055 * up matching ndlp->nlp_DID 000001 to 5056 * fabric DID 0x20101 5057 */ 5058 if ((ndlpdid.un.b.domain == 0) && 5059 (ndlpdid.un.b.area == 0)) { 5060 if (ndlpdid.un.b.id && 5061 vport->phba->fc_topology == 5062 LPFC_TOPOLOGY_LOOP) 5063 return 1; 5064 } 5065 return 0; 5066 } 5067 5068 matchdid.un.word = ndlp->nlp_DID; 5069 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5070 (mydid.un.b.area == ndlpdid.un.b.area)) { 5071 if ((matchdid.un.b.domain == 0) && 5072 (matchdid.un.b.area == 0)) { 5073 if (matchdid.un.b.id) 5074 return 1; 5075 } 5076 } 5077 } 5078 return 0; 5079 } 5080 5081 /* Search for a nodelist entry */ 5082 static struct lpfc_nodelist * 5083 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5084 { 5085 struct lpfc_nodelist *ndlp; 5086 uint32_t data1; 5087 5088 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5089 if (lpfc_matchdid(vport, ndlp, did)) { 5090 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5091 ((uint32_t) ndlp->nlp_xri << 16) | 5092 ((uint32_t) ndlp->nlp_type << 8) | 5093 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5094 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5095 "0929 FIND node DID " 5096 "Data: x%p x%x x%x x%x %p\n", 5097 ndlp, ndlp->nlp_DID, 5098 ndlp->nlp_flag, data1, 5099 ndlp->active_rrqs_xri_bitmap); 5100 return ndlp; 5101 } 5102 } 5103 5104 /* FIND node did <did> NOT FOUND */ 5105 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5106 "0932 FIND node did x%x NOT FOUND.\n", did); 5107 return NULL; 5108 } 5109 5110 struct lpfc_nodelist * 5111 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5112 { 5113 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5114 struct lpfc_nodelist *ndlp; 5115 unsigned long iflags; 5116 5117 spin_lock_irqsave(shost->host_lock, iflags); 5118 ndlp = __lpfc_findnode_did(vport, did); 5119 spin_unlock_irqrestore(shost->host_lock, iflags); 5120 return ndlp; 5121 } 5122 5123 struct lpfc_nodelist * 5124 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5125 { 5126 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5127 struct lpfc_nodelist *ndlp; 5128 5129 ndlp = lpfc_findnode_did(vport, did); 5130 if (!ndlp) { 5131 if (vport->phba->nvmet_support) 5132 return NULL; 5133 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5134 lpfc_rscn_payload_check(vport, did) == 0) 5135 return NULL; 5136 ndlp = lpfc_nlp_init(vport, did); 5137 if (!ndlp) 5138 return NULL; 5139 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5140 spin_lock_irq(shost->host_lock); 5141 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5142 spin_unlock_irq(shost->host_lock); 5143 return ndlp; 5144 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5145 if (vport->phba->nvmet_support) 5146 return NULL; 5147 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5148 if (!ndlp) 5149 return NULL; 5150 spin_lock_irq(shost->host_lock); 5151 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5152 spin_unlock_irq(shost->host_lock); 5153 return ndlp; 5154 } 5155 5156 /* The NVME Target does not want to actively manage an rport. 5157 * The goal is to allow the target to reset its state and clear 5158 * pending IO in preparation for the initiator to recover. 5159 */ 5160 if ((vport->fc_flag & FC_RSCN_MODE) && 5161 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5162 if (lpfc_rscn_payload_check(vport, did)) { 5163 5164 /* Since this node is marked for discovery, 5165 * delay timeout is not needed. 5166 */ 5167 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5168 5169 /* NVME Target mode waits until rport is known to be 5170 * impacted by the RSCN before it transitions. No 5171 * active management - just go to NPR provided the 5172 * node had a valid login. 5173 */ 5174 if (vport->phba->nvmet_support) 5175 return ndlp; 5176 5177 /* If we've already received a PLOGI from this NPort 5178 * we don't need to try to discover it again. 5179 */ 5180 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5181 return NULL; 5182 5183 spin_lock_irq(shost->host_lock); 5184 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5185 spin_unlock_irq(shost->host_lock); 5186 } else 5187 ndlp = NULL; 5188 } else { 5189 /* If the initiator received a PLOGI from this NPort or if the 5190 * initiator is already in the process of discovery on it, 5191 * there's no need to try to discover it again. 5192 */ 5193 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5194 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5195 (!vport->phba->nvmet_support && 5196 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5197 return NULL; 5198 5199 if (vport->phba->nvmet_support) 5200 return ndlp; 5201 5202 /* Moving to NPR state clears unsolicited flags and 5203 * allows for rediscovery 5204 */ 5205 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5206 5207 spin_lock_irq(shost->host_lock); 5208 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5209 spin_unlock_irq(shost->host_lock); 5210 } 5211 return ndlp; 5212 } 5213 5214 /* Build a list of nodes to discover based on the loopmap */ 5215 void 5216 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5217 { 5218 struct lpfc_hba *phba = vport->phba; 5219 int j; 5220 uint32_t alpa, index; 5221 5222 if (!lpfc_is_link_up(phba)) 5223 return; 5224 5225 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5226 return; 5227 5228 /* Check for loop map present or not */ 5229 if (phba->alpa_map[0]) { 5230 for (j = 1; j <= phba->alpa_map[0]; j++) { 5231 alpa = phba->alpa_map[j]; 5232 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5233 continue; 5234 lpfc_setup_disc_node(vport, alpa); 5235 } 5236 } else { 5237 /* No alpamap, so try all alpa's */ 5238 for (j = 0; j < FC_MAXLOOP; j++) { 5239 /* If cfg_scan_down is set, start from highest 5240 * ALPA (0xef) to lowest (0x1). 5241 */ 5242 if (vport->cfg_scan_down) 5243 index = j; 5244 else 5245 index = FC_MAXLOOP - j - 1; 5246 alpa = lpfcAlpaArray[index]; 5247 if ((vport->fc_myDID & 0xff) == alpa) 5248 continue; 5249 lpfc_setup_disc_node(vport, alpa); 5250 } 5251 } 5252 return; 5253 } 5254 5255 /* SLI3 only */ 5256 void 5257 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5258 { 5259 LPFC_MBOXQ_t *mbox; 5260 struct lpfc_sli *psli = &phba->sli; 5261 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5262 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5263 int rc; 5264 5265 /* 5266 * if it's not a physical port or if we already send 5267 * clear_la then don't send it. 5268 */ 5269 if ((phba->link_state >= LPFC_CLEAR_LA) || 5270 (vport->port_type != LPFC_PHYSICAL_PORT) || 5271 (phba->sli_rev == LPFC_SLI_REV4)) 5272 return; 5273 5274 /* Link up discovery */ 5275 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5276 phba->link_state = LPFC_CLEAR_LA; 5277 lpfc_clear_la(phba, mbox); 5278 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5279 mbox->vport = vport; 5280 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5281 if (rc == MBX_NOT_FINISHED) { 5282 mempool_free(mbox, phba->mbox_mem_pool); 5283 lpfc_disc_flush_list(vport); 5284 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5285 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5286 phba->link_state = LPFC_HBA_ERROR; 5287 } 5288 } 5289 } 5290 5291 /* Reg_vpi to tell firmware to resume normal operations */ 5292 void 5293 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5294 { 5295 LPFC_MBOXQ_t *regvpimbox; 5296 5297 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5298 if (regvpimbox) { 5299 lpfc_reg_vpi(vport, regvpimbox); 5300 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5301 regvpimbox->vport = vport; 5302 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5303 == MBX_NOT_FINISHED) { 5304 mempool_free(regvpimbox, phba->mbox_mem_pool); 5305 } 5306 } 5307 } 5308 5309 /* Start Link up / RSCN discovery on NPR nodes */ 5310 void 5311 lpfc_disc_start(struct lpfc_vport *vport) 5312 { 5313 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5314 struct lpfc_hba *phba = vport->phba; 5315 uint32_t num_sent; 5316 uint32_t clear_la_pending; 5317 5318 if (!lpfc_is_link_up(phba)) { 5319 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5320 "3315 Link is not up %x\n", 5321 phba->link_state); 5322 return; 5323 } 5324 5325 if (phba->link_state == LPFC_CLEAR_LA) 5326 clear_la_pending = 1; 5327 else 5328 clear_la_pending = 0; 5329 5330 if (vport->port_state < LPFC_VPORT_READY) 5331 vport->port_state = LPFC_DISC_AUTH; 5332 5333 lpfc_set_disctmo(vport); 5334 5335 vport->fc_prevDID = vport->fc_myDID; 5336 vport->num_disc_nodes = 0; 5337 5338 /* Start Discovery state <hba_state> */ 5339 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5340 "0202 Start Discovery hba state x%x " 5341 "Data: x%x x%x x%x\n", 5342 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5343 vport->fc_adisc_cnt); 5344 5345 /* First do ADISCs - if any */ 5346 num_sent = lpfc_els_disc_adisc(vport); 5347 5348 if (num_sent) 5349 return; 5350 5351 /* Register the VPI for SLI3, NPIV only. */ 5352 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5353 !(vport->fc_flag & FC_PT2PT) && 5354 !(vport->fc_flag & FC_RSCN_MODE) && 5355 (phba->sli_rev < LPFC_SLI_REV4)) { 5356 lpfc_issue_clear_la(phba, vport); 5357 lpfc_issue_reg_vpi(phba, vport); 5358 return; 5359 } 5360 5361 /* 5362 * For SLI2, we need to set port_state to READY and continue 5363 * discovery. 5364 */ 5365 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5366 /* If we get here, there is nothing to ADISC */ 5367 lpfc_issue_clear_la(phba, vport); 5368 5369 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5370 vport->num_disc_nodes = 0; 5371 /* go thru NPR nodes and issue ELS PLOGIs */ 5372 if (vport->fc_npr_cnt) 5373 lpfc_els_disc_plogi(vport); 5374 5375 if (!vport->num_disc_nodes) { 5376 spin_lock_irq(shost->host_lock); 5377 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5378 spin_unlock_irq(shost->host_lock); 5379 lpfc_can_disctmo(vport); 5380 } 5381 } 5382 vport->port_state = LPFC_VPORT_READY; 5383 } else { 5384 /* Next do PLOGIs - if any */ 5385 num_sent = lpfc_els_disc_plogi(vport); 5386 5387 if (num_sent) 5388 return; 5389 5390 if (vport->fc_flag & FC_RSCN_MODE) { 5391 /* Check to see if more RSCNs came in while we 5392 * were processing this one. 5393 */ 5394 if ((vport->fc_rscn_id_cnt == 0) && 5395 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5396 spin_lock_irq(shost->host_lock); 5397 vport->fc_flag &= ~FC_RSCN_MODE; 5398 spin_unlock_irq(shost->host_lock); 5399 lpfc_can_disctmo(vport); 5400 } else 5401 lpfc_els_handle_rscn(vport); 5402 } 5403 } 5404 return; 5405 } 5406 5407 /* 5408 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5409 * ring the match the sppecified nodelist. 5410 */ 5411 static void 5412 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5413 { 5414 LIST_HEAD(completions); 5415 struct lpfc_sli *psli; 5416 IOCB_t *icmd; 5417 struct lpfc_iocbq *iocb, *next_iocb; 5418 struct lpfc_sli_ring *pring; 5419 5420 psli = &phba->sli; 5421 pring = lpfc_phba_elsring(phba); 5422 5423 /* Error matching iocb on txq or txcmplq 5424 * First check the txq. 5425 */ 5426 spin_lock_irq(&phba->hbalock); 5427 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5428 if (iocb->context1 != ndlp) { 5429 continue; 5430 } 5431 icmd = &iocb->iocb; 5432 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5433 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5434 5435 list_move_tail(&iocb->list, &completions); 5436 } 5437 } 5438 5439 /* Next check the txcmplq */ 5440 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5441 if (iocb->context1 != ndlp) { 5442 continue; 5443 } 5444 icmd = &iocb->iocb; 5445 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5446 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5447 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5448 } 5449 } 5450 spin_unlock_irq(&phba->hbalock); 5451 5452 /* Cancel all the IOCBs from the completions list */ 5453 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5454 IOERR_SLI_ABORTED); 5455 } 5456 5457 static void 5458 lpfc_disc_flush_list(struct lpfc_vport *vport) 5459 { 5460 struct lpfc_nodelist *ndlp, *next_ndlp; 5461 struct lpfc_hba *phba = vport->phba; 5462 5463 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5464 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5465 nlp_listp) { 5466 if (!NLP_CHK_NODE_ACT(ndlp)) 5467 continue; 5468 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5469 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5470 lpfc_free_tx(phba, ndlp); 5471 } 5472 } 5473 } 5474 } 5475 5476 void 5477 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5478 { 5479 lpfc_els_flush_rscn(vport); 5480 lpfc_els_flush_cmd(vport); 5481 lpfc_disc_flush_list(vport); 5482 } 5483 5484 /*****************************************************************************/ 5485 /* 5486 * NAME: lpfc_disc_timeout 5487 * 5488 * FUNCTION: Fibre Channel driver discovery timeout routine. 5489 * 5490 * EXECUTION ENVIRONMENT: interrupt only 5491 * 5492 * CALLED FROM: 5493 * Timer function 5494 * 5495 * RETURNS: 5496 * none 5497 */ 5498 /*****************************************************************************/ 5499 void 5500 lpfc_disc_timeout(unsigned long ptr) 5501 { 5502 struct lpfc_vport *vport = (struct lpfc_vport *) ptr; 5503 struct lpfc_hba *phba = vport->phba; 5504 uint32_t tmo_posted; 5505 unsigned long flags = 0; 5506 5507 if (unlikely(!phba)) 5508 return; 5509 5510 spin_lock_irqsave(&vport->work_port_lock, flags); 5511 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5512 if (!tmo_posted) 5513 vport->work_port_events |= WORKER_DISC_TMO; 5514 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5515 5516 if (!tmo_posted) 5517 lpfc_worker_wake_up(phba); 5518 return; 5519 } 5520 5521 static void 5522 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5523 { 5524 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5525 struct lpfc_hba *phba = vport->phba; 5526 struct lpfc_sli *psli = &phba->sli; 5527 struct lpfc_nodelist *ndlp, *next_ndlp; 5528 LPFC_MBOXQ_t *initlinkmbox; 5529 int rc, clrlaerr = 0; 5530 5531 if (!(vport->fc_flag & FC_DISC_TMO)) 5532 return; 5533 5534 spin_lock_irq(shost->host_lock); 5535 vport->fc_flag &= ~FC_DISC_TMO; 5536 spin_unlock_irq(shost->host_lock); 5537 5538 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5539 "disc timeout: state:x%x rtry:x%x flg:x%x", 5540 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5541 5542 switch (vport->port_state) { 5543 5544 case LPFC_LOCAL_CFG_LINK: 5545 /* 5546 * port_state is identically LPFC_LOCAL_CFG_LINK while 5547 * waiting for FAN timeout 5548 */ 5549 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5550 "0221 FAN timeout\n"); 5551 5552 /* Start discovery by sending FLOGI, clean up old rpis */ 5553 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5554 nlp_listp) { 5555 if (!NLP_CHK_NODE_ACT(ndlp)) 5556 continue; 5557 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5558 continue; 5559 if (ndlp->nlp_type & NLP_FABRIC) { 5560 /* Clean up the ndlp on Fabric connections */ 5561 lpfc_drop_node(vport, ndlp); 5562 5563 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5564 /* Fail outstanding IO now since device 5565 * is marked for PLOGI. 5566 */ 5567 lpfc_unreg_rpi(vport, ndlp); 5568 } 5569 } 5570 if (vport->port_state != LPFC_FLOGI) { 5571 if (phba->sli_rev <= LPFC_SLI_REV3) 5572 lpfc_initial_flogi(vport); 5573 else 5574 lpfc_issue_init_vfi(vport); 5575 return; 5576 } 5577 break; 5578 5579 case LPFC_FDISC: 5580 case LPFC_FLOGI: 5581 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5582 /* Initial FLOGI timeout */ 5583 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5584 "0222 Initial %s timeout\n", 5585 vport->vpi ? "FDISC" : "FLOGI"); 5586 5587 /* Assume no Fabric and go on with discovery. 5588 * Check for outstanding ELS FLOGI to abort. 5589 */ 5590 5591 /* FLOGI failed, so just use loop map to make discovery list */ 5592 lpfc_disc_list_loopmap(vport); 5593 5594 /* Start discovery */ 5595 lpfc_disc_start(vport); 5596 break; 5597 5598 case LPFC_FABRIC_CFG_LINK: 5599 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5600 NameServer login */ 5601 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5602 "0223 Timeout while waiting for " 5603 "NameServer login\n"); 5604 /* Next look for NameServer ndlp */ 5605 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5606 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5607 lpfc_els_abort(phba, ndlp); 5608 5609 /* ReStart discovery */ 5610 goto restart_disc; 5611 5612 case LPFC_NS_QRY: 5613 /* Check for wait for NameServer Rsp timeout */ 5614 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5615 "0224 NameServer Query timeout " 5616 "Data: x%x x%x\n", 5617 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5618 5619 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5620 /* Try it one more time */ 5621 vport->fc_ns_retry++; 5622 vport->gidft_inp = 0; 5623 rc = lpfc_issue_gidft(vport); 5624 if (rc == 0) 5625 break; 5626 } 5627 vport->fc_ns_retry = 0; 5628 5629 restart_disc: 5630 /* 5631 * Discovery is over. 5632 * set port_state to PORT_READY if SLI2. 5633 * cmpl_reg_vpi will set port_state to READY for SLI3. 5634 */ 5635 if (phba->sli_rev < LPFC_SLI_REV4) { 5636 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5637 lpfc_issue_reg_vpi(phba, vport); 5638 else { 5639 lpfc_issue_clear_la(phba, vport); 5640 vport->port_state = LPFC_VPORT_READY; 5641 } 5642 } 5643 5644 /* Setup and issue mailbox INITIALIZE LINK command */ 5645 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5646 if (!initlinkmbox) { 5647 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5648 "0206 Device Discovery " 5649 "completion error\n"); 5650 phba->link_state = LPFC_HBA_ERROR; 5651 break; 5652 } 5653 5654 lpfc_linkdown(phba); 5655 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5656 phba->cfg_link_speed); 5657 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5658 initlinkmbox->vport = vport; 5659 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5660 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5661 lpfc_set_loopback_flag(phba); 5662 if (rc == MBX_NOT_FINISHED) 5663 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5664 5665 break; 5666 5667 case LPFC_DISC_AUTH: 5668 /* Node Authentication timeout */ 5669 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5670 "0227 Node Authentication timeout\n"); 5671 lpfc_disc_flush_list(vport); 5672 5673 /* 5674 * set port_state to PORT_READY if SLI2. 5675 * cmpl_reg_vpi will set port_state to READY for SLI3. 5676 */ 5677 if (phba->sli_rev < LPFC_SLI_REV4) { 5678 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5679 lpfc_issue_reg_vpi(phba, vport); 5680 else { /* NPIV Not enabled */ 5681 lpfc_issue_clear_la(phba, vport); 5682 vport->port_state = LPFC_VPORT_READY; 5683 } 5684 } 5685 break; 5686 5687 case LPFC_VPORT_READY: 5688 if (vport->fc_flag & FC_RSCN_MODE) { 5689 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5690 "0231 RSCN timeout Data: x%x " 5691 "x%x\n", 5692 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5693 5694 /* Cleanup any outstanding ELS commands */ 5695 lpfc_els_flush_cmd(vport); 5696 5697 lpfc_els_flush_rscn(vport); 5698 lpfc_disc_flush_list(vport); 5699 } 5700 break; 5701 5702 default: 5703 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5704 "0273 Unexpected discovery timeout, " 5705 "vport State x%x\n", vport->port_state); 5706 break; 5707 } 5708 5709 switch (phba->link_state) { 5710 case LPFC_CLEAR_LA: 5711 /* CLEAR LA timeout */ 5712 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5713 "0228 CLEAR LA timeout\n"); 5714 clrlaerr = 1; 5715 break; 5716 5717 case LPFC_LINK_UP: 5718 lpfc_issue_clear_la(phba, vport); 5719 /* Drop thru */ 5720 case LPFC_LINK_UNKNOWN: 5721 case LPFC_WARM_START: 5722 case LPFC_INIT_START: 5723 case LPFC_INIT_MBX_CMDS: 5724 case LPFC_LINK_DOWN: 5725 case LPFC_HBA_ERROR: 5726 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5727 "0230 Unexpected timeout, hba link " 5728 "state x%x\n", phba->link_state); 5729 clrlaerr = 1; 5730 break; 5731 5732 case LPFC_HBA_READY: 5733 break; 5734 } 5735 5736 if (clrlaerr) { 5737 lpfc_disc_flush_list(vport); 5738 if (phba->sli_rev != LPFC_SLI_REV4) { 5739 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5740 ~LPFC_STOP_IOCB_EVENT; 5741 psli->sli3_ring[LPFC_FCP_RING].flag &= 5742 ~LPFC_STOP_IOCB_EVENT; 5743 } 5744 vport->port_state = LPFC_VPORT_READY; 5745 } 5746 return; 5747 } 5748 5749 /* 5750 * This routine handles processing a NameServer REG_LOGIN mailbox 5751 * command upon completion. It is setup in the LPFC_MBOXQ 5752 * as the completion routine when the command is 5753 * handed off to the SLI layer. 5754 */ 5755 void 5756 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5757 { 5758 MAILBOX_t *mb = &pmb->u.mb; 5759 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5760 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5761 struct lpfc_vport *vport = pmb->vport; 5762 5763 pmb->context1 = NULL; 5764 pmb->context2 = NULL; 5765 5766 if (phba->sli_rev < LPFC_SLI_REV4) 5767 ndlp->nlp_rpi = mb->un.varWords[0]; 5768 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5769 ndlp->nlp_type |= NLP_FABRIC; 5770 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5771 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5772 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5773 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5774 kref_read(&ndlp->kref), 5775 ndlp->nlp_usg_map, ndlp); 5776 /* 5777 * Start issuing Fabric-Device Management Interface (FDMI) command to 5778 * 0xfffffa (FDMI well known port). 5779 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5780 * DPRT -> RPRT (vports) 5781 */ 5782 if (vport->port_type == LPFC_PHYSICAL_PORT) 5783 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5784 else 5785 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5786 5787 5788 /* decrement the node reference count held for this callback 5789 * function. 5790 */ 5791 lpfc_nlp_put(ndlp); 5792 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5793 kfree(mp); 5794 mempool_free(pmb, phba->mbox_mem_pool); 5795 5796 return; 5797 } 5798 5799 static int 5800 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5801 { 5802 uint16_t *rpi = param; 5803 5804 /* check for active node */ 5805 if (!NLP_CHK_NODE_ACT(ndlp)) 5806 return 0; 5807 5808 return ndlp->nlp_rpi == *rpi; 5809 } 5810 5811 static int 5812 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5813 { 5814 return memcmp(&ndlp->nlp_portname, param, 5815 sizeof(ndlp->nlp_portname)) == 0; 5816 } 5817 5818 static struct lpfc_nodelist * 5819 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5820 { 5821 struct lpfc_nodelist *ndlp; 5822 5823 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5824 if (filter(ndlp, param)) { 5825 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5826 "3185 FIND node filter %p DID " 5827 "Data: x%p x%x x%x\n", 5828 filter, ndlp, ndlp->nlp_DID, 5829 ndlp->nlp_flag); 5830 return ndlp; 5831 } 5832 } 5833 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5834 "3186 FIND node filter %p NOT FOUND.\n", filter); 5835 return NULL; 5836 } 5837 5838 /* 5839 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5840 * returns the node list element pointer else return NULL. 5841 */ 5842 struct lpfc_nodelist * 5843 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5844 { 5845 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5846 } 5847 5848 /* 5849 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5850 * returns the node element list pointer else return NULL. 5851 */ 5852 struct lpfc_nodelist * 5853 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5854 { 5855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5856 struct lpfc_nodelist *ndlp; 5857 5858 spin_lock_irq(shost->host_lock); 5859 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5860 spin_unlock_irq(shost->host_lock); 5861 return ndlp; 5862 } 5863 5864 /* 5865 * This routine looks up the ndlp lists for the given RPI. If the rpi 5866 * is found, the routine returns the node element list pointer else 5867 * return NULL. 5868 */ 5869 struct lpfc_nodelist * 5870 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5871 { 5872 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5873 struct lpfc_nodelist *ndlp; 5874 5875 spin_lock_irq(shost->host_lock); 5876 ndlp = __lpfc_findnode_rpi(vport, rpi); 5877 spin_unlock_irq(shost->host_lock); 5878 return ndlp; 5879 } 5880 5881 /** 5882 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5883 * @phba: pointer to lpfc hba data structure. 5884 * @vpi: the physical host virtual N_Port identifier. 5885 * 5886 * This routine finds a vport on a HBA (referred by @phba) through a 5887 * @vpi. The function walks the HBA's vport list and returns the address 5888 * of the vport with the matching @vpi. 5889 * 5890 * Return code 5891 * NULL - No vport with the matching @vpi found 5892 * Otherwise - Address to the vport with the matching @vpi. 5893 **/ 5894 struct lpfc_vport * 5895 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5896 { 5897 struct lpfc_vport *vport; 5898 unsigned long flags; 5899 int i = 0; 5900 5901 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5902 if (vpi > 0) { 5903 /* 5904 * Translate the physical vpi to the logical vpi. The 5905 * vport stores the logical vpi. 5906 */ 5907 for (i = 0; i < phba->max_vpi; i++) { 5908 if (vpi == phba->vpi_ids[i]) 5909 break; 5910 } 5911 5912 if (i >= phba->max_vpi) { 5913 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5914 "2936 Could not find Vport mapped " 5915 "to vpi %d\n", vpi); 5916 return NULL; 5917 } 5918 } 5919 5920 spin_lock_irqsave(&phba->hbalock, flags); 5921 list_for_each_entry(vport, &phba->port_list, listentry) { 5922 if (vport->vpi == i) { 5923 spin_unlock_irqrestore(&phba->hbalock, flags); 5924 return vport; 5925 } 5926 } 5927 spin_unlock_irqrestore(&phba->hbalock, flags); 5928 return NULL; 5929 } 5930 5931 struct lpfc_nodelist * 5932 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 5933 { 5934 struct lpfc_nodelist *ndlp; 5935 int rpi = LPFC_RPI_ALLOC_ERROR; 5936 5937 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5938 rpi = lpfc_sli4_alloc_rpi(vport->phba); 5939 if (rpi == LPFC_RPI_ALLOC_ERROR) 5940 return NULL; 5941 } 5942 5943 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 5944 if (!ndlp) { 5945 if (vport->phba->sli_rev == LPFC_SLI_REV4) 5946 lpfc_sli4_free_rpi(vport->phba, rpi); 5947 return NULL; 5948 } 5949 5950 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5951 5952 lpfc_initialize_node(vport, ndlp, did); 5953 INIT_LIST_HEAD(&ndlp->nlp_listp); 5954 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5955 ndlp->nlp_rpi = rpi; 5956 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5957 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5958 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5959 ndlp->nlp_flag, 5960 kref_read(&ndlp->kref), 5961 ndlp->nlp_usg_map, ndlp); 5962 5963 ndlp->active_rrqs_xri_bitmap = 5964 mempool_alloc(vport->phba->active_rrq_pool, 5965 GFP_KERNEL); 5966 if (ndlp->active_rrqs_xri_bitmap) 5967 memset(ndlp->active_rrqs_xri_bitmap, 0, 5968 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5969 } 5970 5971 5972 5973 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5974 "node init: did:x%x", 5975 ndlp->nlp_DID, 0, 0); 5976 5977 return ndlp; 5978 } 5979 5980 /* This routine releases all resources associated with a specifc NPort's ndlp 5981 * and mempool_free's the nodelist. 5982 */ 5983 static void 5984 lpfc_nlp_release(struct kref *kref) 5985 { 5986 struct lpfc_hba *phba; 5987 unsigned long flags; 5988 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 5989 kref); 5990 5991 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 5992 "node release: did:x%x flg:x%x type:x%x", 5993 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 5994 5995 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 5996 "0279 lpfc_nlp_release: ndlp:x%p did %x " 5997 "usgmap:x%x refcnt:%d rpi:%x\n", 5998 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 5999 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6000 6001 /* remove ndlp from action. */ 6002 lpfc_nlp_remove(ndlp->vport, ndlp); 6003 6004 /* clear the ndlp active flag for all release cases */ 6005 phba = ndlp->phba; 6006 spin_lock_irqsave(&phba->ndlp_lock, flags); 6007 NLP_CLR_NODE_ACT(ndlp); 6008 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6009 if (phba->sli_rev == LPFC_SLI_REV4) 6010 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 6011 6012 /* free ndlp memory for final ndlp release */ 6013 if (NLP_CHK_FREE_REQ(ndlp)) { 6014 kfree(ndlp->lat_data); 6015 if (phba->sli_rev == LPFC_SLI_REV4) 6016 mempool_free(ndlp->active_rrqs_xri_bitmap, 6017 ndlp->phba->active_rrq_pool); 6018 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6019 } 6020 } 6021 6022 /* This routine bumps the reference count for a ndlp structure to ensure 6023 * that one discovery thread won't free a ndlp while another discovery thread 6024 * is using it. 6025 */ 6026 struct lpfc_nodelist * 6027 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6028 { 6029 struct lpfc_hba *phba; 6030 unsigned long flags; 6031 6032 if (ndlp) { 6033 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6034 "node get: did:x%x flg:x%x refcnt:x%x", 6035 ndlp->nlp_DID, ndlp->nlp_flag, 6036 kref_read(&ndlp->kref)); 6037 /* The check of ndlp usage to prevent incrementing the 6038 * ndlp reference count that is in the process of being 6039 * released. 6040 */ 6041 phba = ndlp->phba; 6042 spin_lock_irqsave(&phba->ndlp_lock, flags); 6043 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6044 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6045 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6046 "0276 lpfc_nlp_get: ndlp:x%p " 6047 "usgmap:x%x refcnt:%d\n", 6048 (void *)ndlp, ndlp->nlp_usg_map, 6049 kref_read(&ndlp->kref)); 6050 return NULL; 6051 } else 6052 kref_get(&ndlp->kref); 6053 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6054 } 6055 return ndlp; 6056 } 6057 6058 /* This routine decrements the reference count for a ndlp structure. If the 6059 * count goes to 0, this indicates the the associated nodelist should be 6060 * freed. Returning 1 indicates the ndlp resource has been released; on the 6061 * other hand, returning 0 indicates the ndlp resource has not been released 6062 * yet. 6063 */ 6064 int 6065 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6066 { 6067 struct lpfc_hba *phba; 6068 unsigned long flags; 6069 6070 if (!ndlp) 6071 return 1; 6072 6073 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6074 "node put: did:x%x flg:x%x refcnt:x%x", 6075 ndlp->nlp_DID, ndlp->nlp_flag, 6076 kref_read(&ndlp->kref)); 6077 phba = ndlp->phba; 6078 spin_lock_irqsave(&phba->ndlp_lock, flags); 6079 /* Check the ndlp memory free acknowledge flag to avoid the 6080 * possible race condition that kref_put got invoked again 6081 * after previous one has done ndlp memory free. 6082 */ 6083 if (NLP_CHK_FREE_ACK(ndlp)) { 6084 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6085 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6086 "0274 lpfc_nlp_put: ndlp:x%p " 6087 "usgmap:x%x refcnt:%d\n", 6088 (void *)ndlp, ndlp->nlp_usg_map, 6089 kref_read(&ndlp->kref)); 6090 return 1; 6091 } 6092 /* Check the ndlp inactivate log flag to avoid the possible 6093 * race condition that kref_put got invoked again after ndlp 6094 * is already in inactivating state. 6095 */ 6096 if (NLP_CHK_IACT_REQ(ndlp)) { 6097 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6098 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6099 "0275 lpfc_nlp_put: ndlp:x%p " 6100 "usgmap:x%x refcnt:%d\n", 6101 (void *)ndlp, ndlp->nlp_usg_map, 6102 kref_read(&ndlp->kref)); 6103 return 1; 6104 } 6105 /* For last put, mark the ndlp usage flags to make sure no 6106 * other kref_get and kref_put on the same ndlp shall get 6107 * in between the process when the final kref_put has been 6108 * invoked on this ndlp. 6109 */ 6110 if (kref_read(&ndlp->kref) == 1) { 6111 /* Indicate ndlp is put to inactive state. */ 6112 NLP_SET_IACT_REQ(ndlp); 6113 /* Acknowledge ndlp memory free has been seen. */ 6114 if (NLP_CHK_FREE_REQ(ndlp)) 6115 NLP_SET_FREE_ACK(ndlp); 6116 } 6117 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6118 /* Note, the kref_put returns 1 when decrementing a reference 6119 * count that was 1, it invokes the release callback function, 6120 * but it still left the reference count as 1 (not actually 6121 * performs the last decrementation). Otherwise, it actually 6122 * decrements the reference count and returns 0. 6123 */ 6124 return kref_put(&ndlp->kref, lpfc_nlp_release); 6125 } 6126 6127 /* This routine free's the specified nodelist if it is not in use 6128 * by any other discovery thread. This routine returns 1 if the 6129 * ndlp has been freed. A return value of 0 indicates the ndlp is 6130 * not yet been released. 6131 */ 6132 int 6133 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6134 { 6135 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6136 "node not used: did:x%x flg:x%x refcnt:x%x", 6137 ndlp->nlp_DID, ndlp->nlp_flag, 6138 kref_read(&ndlp->kref)); 6139 if (kref_read(&ndlp->kref) == 1) 6140 if (lpfc_nlp_put(ndlp)) 6141 return 1; 6142 return 0; 6143 } 6144 6145 /** 6146 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6147 * @phba: Pointer to hba context object. 6148 * 6149 * This function iterate through all FC nodes associated 6150 * will all vports to check if there is any node with 6151 * fc_rports associated with it. If there is an fc_rport 6152 * associated with the node, then the node is either in 6153 * discovered state or its devloss_timer is pending. 6154 */ 6155 static int 6156 lpfc_fcf_inuse(struct lpfc_hba *phba) 6157 { 6158 struct lpfc_vport **vports; 6159 int i, ret = 0; 6160 struct lpfc_nodelist *ndlp; 6161 struct Scsi_Host *shost; 6162 6163 vports = lpfc_create_vport_work_array(phba); 6164 6165 /* If driver cannot allocate memory, indicate fcf is in use */ 6166 if (!vports) 6167 return 1; 6168 6169 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6170 shost = lpfc_shost_from_vport(vports[i]); 6171 spin_lock_irq(shost->host_lock); 6172 /* 6173 * IF the CVL_RCVD bit is not set then we have sent the 6174 * flogi. 6175 * If dev_loss fires while we are waiting we do not want to 6176 * unreg the fcf. 6177 */ 6178 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6179 spin_unlock_irq(shost->host_lock); 6180 ret = 1; 6181 goto out; 6182 } 6183 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6184 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6185 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6186 ret = 1; 6187 spin_unlock_irq(shost->host_lock); 6188 goto out; 6189 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6190 ret = 1; 6191 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6192 "2624 RPI %x DID %x flag %x " 6193 "still logged in\n", 6194 ndlp->nlp_rpi, ndlp->nlp_DID, 6195 ndlp->nlp_flag); 6196 } 6197 } 6198 spin_unlock_irq(shost->host_lock); 6199 } 6200 out: 6201 lpfc_destroy_vport_work_array(phba, vports); 6202 return ret; 6203 } 6204 6205 /** 6206 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6207 * @phba: Pointer to hba context object. 6208 * @mboxq: Pointer to mailbox object. 6209 * 6210 * This function frees memory associated with the mailbox command. 6211 */ 6212 void 6213 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6214 { 6215 struct lpfc_vport *vport = mboxq->vport; 6216 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6217 6218 if (mboxq->u.mb.mbxStatus) { 6219 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6220 "2555 UNREG_VFI mbxStatus error x%x " 6221 "HBA state x%x\n", 6222 mboxq->u.mb.mbxStatus, vport->port_state); 6223 } 6224 spin_lock_irq(shost->host_lock); 6225 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6226 spin_unlock_irq(shost->host_lock); 6227 mempool_free(mboxq, phba->mbox_mem_pool); 6228 return; 6229 } 6230 6231 /** 6232 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6233 * @phba: Pointer to hba context object. 6234 * @mboxq: Pointer to mailbox object. 6235 * 6236 * This function frees memory associated with the mailbox command. 6237 */ 6238 static void 6239 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6240 { 6241 struct lpfc_vport *vport = mboxq->vport; 6242 6243 if (mboxq->u.mb.mbxStatus) { 6244 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6245 "2550 UNREG_FCFI mbxStatus error x%x " 6246 "HBA state x%x\n", 6247 mboxq->u.mb.mbxStatus, vport->port_state); 6248 } 6249 mempool_free(mboxq, phba->mbox_mem_pool); 6250 return; 6251 } 6252 6253 /** 6254 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6255 * @phba: Pointer to hba context object. 6256 * 6257 * This function prepare the HBA for unregistering the currently registered 6258 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6259 * VFIs. 6260 */ 6261 int 6262 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6263 { 6264 struct lpfc_vport **vports; 6265 struct lpfc_nodelist *ndlp; 6266 struct Scsi_Host *shost; 6267 int i = 0, rc; 6268 6269 /* Unregister RPIs */ 6270 if (lpfc_fcf_inuse(phba)) 6271 lpfc_unreg_hba_rpis(phba); 6272 6273 /* At this point, all discovery is aborted */ 6274 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6275 6276 /* Unregister VPIs */ 6277 vports = lpfc_create_vport_work_array(phba); 6278 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6279 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6280 /* Stop FLOGI/FDISC retries */ 6281 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6282 if (ndlp) 6283 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6284 lpfc_cleanup_pending_mbox(vports[i]); 6285 if (phba->sli_rev == LPFC_SLI_REV4) 6286 lpfc_sli4_unreg_all_rpis(vports[i]); 6287 lpfc_mbx_unreg_vpi(vports[i]); 6288 shost = lpfc_shost_from_vport(vports[i]); 6289 spin_lock_irq(shost->host_lock); 6290 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6291 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6292 spin_unlock_irq(shost->host_lock); 6293 } 6294 lpfc_destroy_vport_work_array(phba, vports); 6295 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6296 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6297 if (ndlp) 6298 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6299 lpfc_cleanup_pending_mbox(phba->pport); 6300 if (phba->sli_rev == LPFC_SLI_REV4) 6301 lpfc_sli4_unreg_all_rpis(phba->pport); 6302 lpfc_mbx_unreg_vpi(phba->pport); 6303 shost = lpfc_shost_from_vport(phba->pport); 6304 spin_lock_irq(shost->host_lock); 6305 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6306 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6307 spin_unlock_irq(shost->host_lock); 6308 } 6309 6310 /* Cleanup any outstanding ELS commands */ 6311 lpfc_els_flush_all_cmd(phba); 6312 6313 /* Unregister the physical port VFI */ 6314 rc = lpfc_issue_unreg_vfi(phba->pport); 6315 return rc; 6316 } 6317 6318 /** 6319 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6320 * @phba: Pointer to hba context object. 6321 * 6322 * This function issues synchronous unregister FCF mailbox command to HBA to 6323 * unregister the currently registered FCF record. The driver does not reset 6324 * the driver FCF usage state flags. 6325 * 6326 * Return 0 if successfully issued, none-zero otherwise. 6327 */ 6328 int 6329 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6330 { 6331 LPFC_MBOXQ_t *mbox; 6332 int rc; 6333 6334 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6335 if (!mbox) { 6336 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6337 "2551 UNREG_FCFI mbox allocation failed" 6338 "HBA state x%x\n", phba->pport->port_state); 6339 return -ENOMEM; 6340 } 6341 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6342 mbox->vport = phba->pport; 6343 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6344 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6345 6346 if (rc == MBX_NOT_FINISHED) { 6347 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6348 "2552 Unregister FCFI command failed rc x%x " 6349 "HBA state x%x\n", 6350 rc, phba->pport->port_state); 6351 return -EINVAL; 6352 } 6353 return 0; 6354 } 6355 6356 /** 6357 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6358 * @phba: Pointer to hba context object. 6359 * 6360 * This function unregisters the currently reigstered FCF. This function 6361 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6362 */ 6363 void 6364 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6365 { 6366 int rc; 6367 6368 /* Preparation for unregistering fcf */ 6369 rc = lpfc_unregister_fcf_prep(phba); 6370 if (rc) { 6371 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6372 "2748 Failed to prepare for unregistering " 6373 "HBA's FCF record: rc=%d\n", rc); 6374 return; 6375 } 6376 6377 /* Now, unregister FCF record and reset HBA FCF state */ 6378 rc = lpfc_sli4_unregister_fcf(phba); 6379 if (rc) 6380 return; 6381 /* Reset HBA FCF states after successful unregister FCF */ 6382 phba->fcf.fcf_flag = 0; 6383 phba->fcf.current_rec.flag = 0; 6384 6385 /* 6386 * If driver is not unloading, check if there is any other 6387 * FCF record that can be used for discovery. 6388 */ 6389 if ((phba->pport->load_flag & FC_UNLOADING) || 6390 (phba->link_state < LPFC_LINK_UP)) 6391 return; 6392 6393 /* This is considered as the initial FCF discovery scan */ 6394 spin_lock_irq(&phba->hbalock); 6395 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6396 spin_unlock_irq(&phba->hbalock); 6397 6398 /* Reset FCF roundrobin bmask for new discovery */ 6399 lpfc_sli4_clear_fcf_rr_bmask(phba); 6400 6401 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6402 6403 if (rc) { 6404 spin_lock_irq(&phba->hbalock); 6405 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6406 spin_unlock_irq(&phba->hbalock); 6407 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6408 "2553 lpfc_unregister_unused_fcf failed " 6409 "to read FCF record HBA state x%x\n", 6410 phba->pport->port_state); 6411 } 6412 } 6413 6414 /** 6415 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6416 * @phba: Pointer to hba context object. 6417 * 6418 * This function just unregisters the currently reigstered FCF. It does not 6419 * try to find another FCF for discovery. 6420 */ 6421 void 6422 lpfc_unregister_fcf(struct lpfc_hba *phba) 6423 { 6424 int rc; 6425 6426 /* Preparation for unregistering fcf */ 6427 rc = lpfc_unregister_fcf_prep(phba); 6428 if (rc) { 6429 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6430 "2749 Failed to prepare for unregistering " 6431 "HBA's FCF record: rc=%d\n", rc); 6432 return; 6433 } 6434 6435 /* Now, unregister FCF record and reset HBA FCF state */ 6436 rc = lpfc_sli4_unregister_fcf(phba); 6437 if (rc) 6438 return; 6439 /* Set proper HBA FCF states after successful unregister FCF */ 6440 spin_lock_irq(&phba->hbalock); 6441 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6442 spin_unlock_irq(&phba->hbalock); 6443 } 6444 6445 /** 6446 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6447 * @phba: Pointer to hba context object. 6448 * 6449 * This function check if there are any connected remote port for the FCF and 6450 * if all the devices are disconnected, this function unregister FCFI. 6451 * This function also tries to use another FCF for discovery. 6452 */ 6453 void 6454 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6455 { 6456 /* 6457 * If HBA is not running in FIP mode, if HBA does not support 6458 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6459 * registered, do nothing. 6460 */ 6461 spin_lock_irq(&phba->hbalock); 6462 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6463 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6464 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6465 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6466 (phba->pport->port_state == LPFC_FLOGI)) { 6467 spin_unlock_irq(&phba->hbalock); 6468 return; 6469 } 6470 spin_unlock_irq(&phba->hbalock); 6471 6472 if (lpfc_fcf_inuse(phba)) 6473 return; 6474 6475 lpfc_unregister_fcf_rescan(phba); 6476 } 6477 6478 /** 6479 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6480 * @phba: Pointer to hba context object. 6481 * @buff: Buffer containing the FCF connection table as in the config 6482 * region. 6483 * This function create driver data structure for the FCF connection 6484 * record table read from config region 23. 6485 */ 6486 static void 6487 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6488 uint8_t *buff) 6489 { 6490 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6491 struct lpfc_fcf_conn_hdr *conn_hdr; 6492 struct lpfc_fcf_conn_rec *conn_rec; 6493 uint32_t record_count; 6494 int i; 6495 6496 /* Free the current connect table */ 6497 list_for_each_entry_safe(conn_entry, next_conn_entry, 6498 &phba->fcf_conn_rec_list, list) { 6499 list_del_init(&conn_entry->list); 6500 kfree(conn_entry); 6501 } 6502 6503 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6504 record_count = conn_hdr->length * sizeof(uint32_t)/ 6505 sizeof(struct lpfc_fcf_conn_rec); 6506 6507 conn_rec = (struct lpfc_fcf_conn_rec *) 6508 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6509 6510 for (i = 0; i < record_count; i++) { 6511 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6512 continue; 6513 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6514 GFP_KERNEL); 6515 if (!conn_entry) { 6516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6517 "2566 Failed to allocate connection" 6518 " table entry\n"); 6519 return; 6520 } 6521 6522 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6523 sizeof(struct lpfc_fcf_conn_rec)); 6524 list_add_tail(&conn_entry->list, 6525 &phba->fcf_conn_rec_list); 6526 } 6527 6528 if (!list_empty(&phba->fcf_conn_rec_list)) { 6529 i = 0; 6530 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6531 list) { 6532 conn_rec = &conn_entry->conn_rec; 6533 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6534 "3345 FCF connection list rec[%02d]: " 6535 "flags:x%04x, vtag:x%04x, " 6536 "fabric_name:x%02x:%02x:%02x:%02x:" 6537 "%02x:%02x:%02x:%02x, " 6538 "switch_name:x%02x:%02x:%02x:%02x:" 6539 "%02x:%02x:%02x:%02x\n", i++, 6540 conn_rec->flags, conn_rec->vlan_tag, 6541 conn_rec->fabric_name[0], 6542 conn_rec->fabric_name[1], 6543 conn_rec->fabric_name[2], 6544 conn_rec->fabric_name[3], 6545 conn_rec->fabric_name[4], 6546 conn_rec->fabric_name[5], 6547 conn_rec->fabric_name[6], 6548 conn_rec->fabric_name[7], 6549 conn_rec->switch_name[0], 6550 conn_rec->switch_name[1], 6551 conn_rec->switch_name[2], 6552 conn_rec->switch_name[3], 6553 conn_rec->switch_name[4], 6554 conn_rec->switch_name[5], 6555 conn_rec->switch_name[6], 6556 conn_rec->switch_name[7]); 6557 } 6558 } 6559 } 6560 6561 /** 6562 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6563 * @phba: Pointer to hba context object. 6564 * @buff: Buffer containing the FCoE parameter data structure. 6565 * 6566 * This function update driver data structure with config 6567 * parameters read from config region 23. 6568 */ 6569 static void 6570 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6571 uint8_t *buff) 6572 { 6573 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6574 struct lpfc_fcoe_params *fcoe_param; 6575 6576 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6577 buff; 6578 fcoe_param = (struct lpfc_fcoe_params *) 6579 (buff + sizeof(struct lpfc_fip_param_hdr)); 6580 6581 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6582 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6583 return; 6584 6585 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6586 phba->valid_vlan = 1; 6587 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6588 0xFFF; 6589 } 6590 6591 phba->fc_map[0] = fcoe_param->fc_map[0]; 6592 phba->fc_map[1] = fcoe_param->fc_map[1]; 6593 phba->fc_map[2] = fcoe_param->fc_map[2]; 6594 return; 6595 } 6596 6597 /** 6598 * lpfc_get_rec_conf23 - Get a record type in config region data. 6599 * @buff: Buffer containing config region 23 data. 6600 * @size: Size of the data buffer. 6601 * @rec_type: Record type to be searched. 6602 * 6603 * This function searches config region data to find the beginning 6604 * of the record specified by record_type. If record found, this 6605 * function return pointer to the record else return NULL. 6606 */ 6607 static uint8_t * 6608 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6609 { 6610 uint32_t offset = 0, rec_length; 6611 6612 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6613 (size < sizeof(uint32_t))) 6614 return NULL; 6615 6616 rec_length = buff[offset + 1]; 6617 6618 /* 6619 * One TLV record has one word header and number of data words 6620 * specified in the rec_length field of the record header. 6621 */ 6622 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6623 <= size) { 6624 if (buff[offset] == rec_type) 6625 return &buff[offset]; 6626 6627 if (buff[offset] == LPFC_REGION23_LAST_REC) 6628 return NULL; 6629 6630 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6631 rec_length = buff[offset + 1]; 6632 } 6633 return NULL; 6634 } 6635 6636 /** 6637 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6638 * @phba: Pointer to lpfc_hba data structure. 6639 * @buff: Buffer containing config region 23 data. 6640 * @size: Size of the data buffer. 6641 * 6642 * This function parses the FCoE config parameters in config region 23 and 6643 * populate driver data structure with the parameters. 6644 */ 6645 void 6646 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6647 uint8_t *buff, 6648 uint32_t size) 6649 { 6650 uint32_t offset = 0; 6651 uint8_t *rec_ptr; 6652 6653 /* 6654 * If data size is less than 2 words signature and version cannot be 6655 * verified. 6656 */ 6657 if (size < 2*sizeof(uint32_t)) 6658 return; 6659 6660 /* Check the region signature first */ 6661 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6663 "2567 Config region 23 has bad signature\n"); 6664 return; 6665 } 6666 6667 offset += 4; 6668 6669 /* Check the data structure version */ 6670 if (buff[offset] != LPFC_REGION23_VERSION) { 6671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6672 "2568 Config region 23 has bad version\n"); 6673 return; 6674 } 6675 offset += 4; 6676 6677 /* Read FCoE param record */ 6678 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6679 size - offset, FCOE_PARAM_TYPE); 6680 if (rec_ptr) 6681 lpfc_read_fcoe_param(phba, rec_ptr); 6682 6683 /* Read FCF connection table */ 6684 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6685 size - offset, FCOE_CONN_TBL_TYPE); 6686 if (rec_ptr) 6687 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6688 6689 } 6690