1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. 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 & ELS_XRI_ABORT_EVENT) 644 lpfc_sli4_els_xri_abort_event_proc(phba); 645 if (phba->hba_flag & ASYNC_EVENT) 646 lpfc_sli4_async_event_proc(phba); 647 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 648 spin_lock_irq(&phba->hbalock); 649 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 650 spin_unlock_irq(&phba->hbalock); 651 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 652 } 653 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 654 lpfc_sli4_fcf_redisc_event_proc(phba); 655 } 656 657 vports = lpfc_create_vport_work_array(phba); 658 if (vports != NULL) 659 for (i = 0; i <= phba->max_vports; i++) { 660 /* 661 * We could have no vports in array if unloading, so if 662 * this happens then just use the pport 663 */ 664 if (vports[i] == NULL && i == 0) 665 vport = phba->pport; 666 else 667 vport = vports[i]; 668 if (vport == NULL) 669 break; 670 spin_lock_irq(&vport->work_port_lock); 671 work_port_events = vport->work_port_events; 672 vport->work_port_events &= ~work_port_events; 673 spin_unlock_irq(&vport->work_port_lock); 674 if (work_port_events & WORKER_DISC_TMO) 675 lpfc_disc_timeout_handler(vport); 676 if (work_port_events & WORKER_ELS_TMO) 677 lpfc_els_timeout_handler(vport); 678 if (work_port_events & WORKER_HB_TMO) 679 lpfc_hb_timeout_handler(phba); 680 if (work_port_events & WORKER_MBOX_TMO) 681 lpfc_mbox_timeout_handler(phba); 682 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 683 lpfc_unblock_fabric_iocbs(phba); 684 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 685 lpfc_ramp_down_queue_handler(phba); 686 if (work_port_events & WORKER_DELAYED_DISC_TMO) 687 lpfc_delayed_disc_timeout_handler(vport); 688 } 689 lpfc_destroy_vport_work_array(phba, vports); 690 691 pring = lpfc_phba_elsring(phba); 692 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 693 status >>= (4*LPFC_ELS_RING); 694 if (pring && (status & HA_RXMASK || 695 pring->flag & LPFC_DEFERRED_RING_EVENT || 696 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 697 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 698 pring->flag |= LPFC_DEFERRED_RING_EVENT; 699 /* Preserve legacy behavior. */ 700 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 701 set_bit(LPFC_DATA_READY, &phba->data_flags); 702 } else { 703 if (phba->link_state >= LPFC_LINK_UP || 704 phba->link_flag & LS_MDS_LOOPBACK) { 705 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 706 lpfc_sli_handle_slow_ring_event(phba, pring, 707 (status & 708 HA_RXMASK)); 709 } 710 } 711 if (phba->sli_rev == LPFC_SLI_REV4) 712 lpfc_drain_txq(phba); 713 /* 714 * Turn on Ring interrupts 715 */ 716 if (phba->sli_rev <= LPFC_SLI_REV3) { 717 spin_lock_irq(&phba->hbalock); 718 control = readl(phba->HCregaddr); 719 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 720 lpfc_debugfs_slow_ring_trc(phba, 721 "WRK Enable ring: cntl:x%x hacopy:x%x", 722 control, ha_copy, 0); 723 724 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 725 writel(control, phba->HCregaddr); 726 readl(phba->HCregaddr); /* flush */ 727 } else { 728 lpfc_debugfs_slow_ring_trc(phba, 729 "WRK Ring ok: cntl:x%x hacopy:x%x", 730 control, ha_copy, 0); 731 } 732 spin_unlock_irq(&phba->hbalock); 733 } 734 } 735 lpfc_work_list_done(phba); 736 } 737 738 int 739 lpfc_do_work(void *p) 740 { 741 struct lpfc_hba *phba = p; 742 int rc; 743 744 set_user_nice(current, MIN_NICE); 745 current->flags |= PF_NOFREEZE; 746 phba->data_flags = 0; 747 748 while (!kthread_should_stop()) { 749 /* wait and check worker queue activities */ 750 rc = wait_event_interruptible(phba->work_waitq, 751 (test_and_clear_bit(LPFC_DATA_READY, 752 &phba->data_flags) 753 || kthread_should_stop())); 754 /* Signal wakeup shall terminate the worker thread */ 755 if (rc) { 756 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 757 "0433 Wakeup on signal: rc=x%x\n", rc); 758 break; 759 } 760 761 /* Attend pending lpfc data processing */ 762 lpfc_work_done(phba); 763 } 764 phba->worker_thread = NULL; 765 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 766 "0432 Worker thread stopped.\n"); 767 return 0; 768 } 769 770 /* 771 * This is only called to handle FC worker events. Since this a rare 772 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 773 * embedding it in the IOCB. 774 */ 775 int 776 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 777 uint32_t evt) 778 { 779 struct lpfc_work_evt *evtp; 780 unsigned long flags; 781 782 /* 783 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 784 * be queued to worker thread for processing 785 */ 786 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 787 if (!evtp) 788 return 0; 789 790 evtp->evt_arg1 = arg1; 791 evtp->evt_arg2 = arg2; 792 evtp->evt = evt; 793 794 spin_lock_irqsave(&phba->hbalock, flags); 795 list_add_tail(&evtp->evt_listp, &phba->work_list); 796 spin_unlock_irqrestore(&phba->hbalock, flags); 797 798 lpfc_worker_wake_up(phba); 799 800 return 1; 801 } 802 803 void 804 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 805 { 806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 807 struct lpfc_hba *phba = vport->phba; 808 struct lpfc_nodelist *ndlp, *next_ndlp; 809 810 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 811 if (!NLP_CHK_NODE_ACT(ndlp)) 812 continue; 813 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 814 continue; 815 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 816 ((vport->port_type == LPFC_NPIV_PORT) && 817 (ndlp->nlp_DID == NameServer_DID))) 818 lpfc_unreg_rpi(vport, ndlp); 819 820 /* Leave Fabric nodes alone on link down */ 821 if ((phba->sli_rev < LPFC_SLI_REV4) && 822 (!remove && ndlp->nlp_type & NLP_FABRIC)) 823 continue; 824 lpfc_disc_state_machine(vport, ndlp, NULL, 825 remove 826 ? NLP_EVT_DEVICE_RM 827 : NLP_EVT_DEVICE_RECOVERY); 828 } 829 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 830 if (phba->sli_rev == LPFC_SLI_REV4) 831 lpfc_sli4_unreg_all_rpis(vport); 832 lpfc_mbx_unreg_vpi(vport); 833 spin_lock_irq(shost->host_lock); 834 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 835 spin_unlock_irq(shost->host_lock); 836 } 837 } 838 839 void 840 lpfc_port_link_failure(struct lpfc_vport *vport) 841 { 842 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 843 844 /* Cleanup any outstanding received buffers */ 845 lpfc_cleanup_rcv_buffers(vport); 846 847 /* Cleanup any outstanding RSCN activity */ 848 lpfc_els_flush_rscn(vport); 849 850 /* Cleanup any outstanding ELS commands */ 851 lpfc_els_flush_cmd(vport); 852 853 lpfc_cleanup_rpis(vport, 0); 854 855 /* Turn off discovery timer if its running */ 856 lpfc_can_disctmo(vport); 857 } 858 859 void 860 lpfc_linkdown_port(struct lpfc_vport *vport) 861 { 862 struct lpfc_hba *phba = vport->phba; 863 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 864 865 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 866 fc_host_post_event(shost, fc_get_event_number(), 867 FCH_EVT_LINKDOWN, 0); 868 869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 870 "Link Down: state:x%x rtry:x%x flg:x%x", 871 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 872 873 lpfc_port_link_failure(vport); 874 875 /* Stop delayed Nport discovery */ 876 spin_lock_irq(shost->host_lock); 877 vport->fc_flag &= ~FC_DISC_DELAYED; 878 spin_unlock_irq(shost->host_lock); 879 del_timer_sync(&vport->delayed_disc_tmo); 880 } 881 882 int 883 lpfc_linkdown(struct lpfc_hba *phba) 884 { 885 struct lpfc_vport *vport = phba->pport; 886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 887 struct lpfc_vport **vports; 888 LPFC_MBOXQ_t *mb; 889 int i; 890 891 if (phba->link_state == LPFC_LINK_DOWN) 892 return 0; 893 894 /* Block all SCSI stack I/Os */ 895 lpfc_scsi_dev_block(phba); 896 897 spin_lock_irq(&phba->hbalock); 898 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 899 spin_unlock_irq(&phba->hbalock); 900 if (phba->link_state > LPFC_LINK_DOWN) { 901 phba->link_state = LPFC_LINK_DOWN; 902 spin_lock_irq(shost->host_lock); 903 phba->pport->fc_flag &= ~FC_LBIT; 904 spin_unlock_irq(shost->host_lock); 905 } 906 vports = lpfc_create_vport_work_array(phba); 907 if (vports != NULL) { 908 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 909 /* Issue a LINK DOWN event to all nodes */ 910 lpfc_linkdown_port(vports[i]); 911 912 vports[i]->fc_myDID = 0; 913 914 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 915 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 916 if (phba->nvmet_support) 917 lpfc_nvmet_update_targetport(phba); 918 else 919 lpfc_nvme_update_localport(vports[i]); 920 } 921 } 922 } 923 lpfc_destroy_vport_work_array(phba, vports); 924 /* Clean up any firmware default rpi's */ 925 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 926 if (mb) { 927 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 928 mb->vport = vport; 929 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 930 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 931 == MBX_NOT_FINISHED) { 932 mempool_free(mb, phba->mbox_mem_pool); 933 } 934 } 935 936 /* Setup myDID for link up if we are in pt2pt mode */ 937 if (phba->pport->fc_flag & FC_PT2PT) { 938 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 939 if (mb) { 940 lpfc_config_link(phba, mb); 941 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 942 mb->vport = vport; 943 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 944 == MBX_NOT_FINISHED) { 945 mempool_free(mb, phba->mbox_mem_pool); 946 } 947 } 948 spin_lock_irq(shost->host_lock); 949 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 950 spin_unlock_irq(shost->host_lock); 951 } 952 return 0; 953 } 954 955 static void 956 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 957 { 958 struct lpfc_nodelist *ndlp; 959 960 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 961 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 962 if (!NLP_CHK_NODE_ACT(ndlp)) 963 continue; 964 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 965 continue; 966 if (ndlp->nlp_type & NLP_FABRIC) { 967 /* On Linkup its safe to clean up the ndlp 968 * from Fabric connections. 969 */ 970 if (ndlp->nlp_DID != Fabric_DID) 971 lpfc_unreg_rpi(vport, ndlp); 972 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 973 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 974 /* Fail outstanding IO now since device is 975 * marked for PLOGI. 976 */ 977 lpfc_unreg_rpi(vport, ndlp); 978 } 979 } 980 } 981 982 static void 983 lpfc_linkup_port(struct lpfc_vport *vport) 984 { 985 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 986 struct lpfc_hba *phba = vport->phba; 987 988 if ((vport->load_flag & FC_UNLOADING) != 0) 989 return; 990 991 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 992 "Link Up: top:x%x speed:x%x flg:x%x", 993 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 994 995 /* If NPIV is not enabled, only bring the physical port up */ 996 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 997 (vport != phba->pport)) 998 return; 999 1000 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1001 fc_host_post_event(shost, fc_get_event_number(), 1002 FCH_EVT_LINKUP, 0); 1003 1004 spin_lock_irq(shost->host_lock); 1005 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1006 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1007 vport->fc_flag |= FC_NDISC_ACTIVE; 1008 vport->fc_ns_retry = 0; 1009 spin_unlock_irq(shost->host_lock); 1010 1011 if (vport->fc_flag & FC_LBIT) 1012 lpfc_linkup_cleanup_nodes(vport); 1013 1014 } 1015 1016 static int 1017 lpfc_linkup(struct lpfc_hba *phba) 1018 { 1019 struct lpfc_vport **vports; 1020 int i; 1021 1022 phba->link_state = LPFC_LINK_UP; 1023 1024 /* Unblock fabric iocbs if they are blocked */ 1025 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1026 del_timer_sync(&phba->fabric_block_timer); 1027 1028 vports = lpfc_create_vport_work_array(phba); 1029 if (vports != NULL) 1030 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1031 lpfc_linkup_port(vports[i]); 1032 lpfc_destroy_vport_work_array(phba, vports); 1033 1034 return 0; 1035 } 1036 1037 /* 1038 * This routine handles processing a CLEAR_LA mailbox 1039 * command upon completion. It is setup in the LPFC_MBOXQ 1040 * as the completion routine when the command is 1041 * handed off to the SLI layer. SLI3 only. 1042 */ 1043 static void 1044 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1045 { 1046 struct lpfc_vport *vport = pmb->vport; 1047 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1048 struct lpfc_sli *psli = &phba->sli; 1049 MAILBOX_t *mb = &pmb->u.mb; 1050 uint32_t control; 1051 1052 /* Since we don't do discovery right now, turn these off here */ 1053 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1054 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1055 1056 /* Check for error */ 1057 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1058 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1059 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1060 "0320 CLEAR_LA mbxStatus error x%x hba " 1061 "state x%x\n", 1062 mb->mbxStatus, vport->port_state); 1063 phba->link_state = LPFC_HBA_ERROR; 1064 goto out; 1065 } 1066 1067 if (vport->port_type == LPFC_PHYSICAL_PORT) 1068 phba->link_state = LPFC_HBA_READY; 1069 1070 spin_lock_irq(&phba->hbalock); 1071 psli->sli_flag |= LPFC_PROCESS_LA; 1072 control = readl(phba->HCregaddr); 1073 control |= HC_LAINT_ENA; 1074 writel(control, phba->HCregaddr); 1075 readl(phba->HCregaddr); /* flush */ 1076 spin_unlock_irq(&phba->hbalock); 1077 mempool_free(pmb, phba->mbox_mem_pool); 1078 return; 1079 1080 out: 1081 /* Device Discovery completes */ 1082 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1083 "0225 Device Discovery completes\n"); 1084 mempool_free(pmb, phba->mbox_mem_pool); 1085 1086 spin_lock_irq(shost->host_lock); 1087 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1088 spin_unlock_irq(shost->host_lock); 1089 1090 lpfc_can_disctmo(vport); 1091 1092 /* turn on Link Attention interrupts */ 1093 1094 spin_lock_irq(&phba->hbalock); 1095 psli->sli_flag |= LPFC_PROCESS_LA; 1096 control = readl(phba->HCregaddr); 1097 control |= HC_LAINT_ENA; 1098 writel(control, phba->HCregaddr); 1099 readl(phba->HCregaddr); /* flush */ 1100 spin_unlock_irq(&phba->hbalock); 1101 1102 return; 1103 } 1104 1105 1106 void 1107 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1108 { 1109 struct lpfc_vport *vport = pmb->vport; 1110 uint8_t bbscn = 0; 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 if (phba->bbcredit_support && phba->cfg_enable_bbcr) { 1139 bbscn = bf_get(lpfc_bbscn_def, 1140 &phba->sli4_hba.bbscn_params); 1141 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 1142 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); 1143 } 1144 lpfc_initial_flogi(vport); 1145 } else if (vport->fc_flag & FC_PT2PT) { 1146 lpfc_disc_start(vport); 1147 } 1148 return; 1149 1150 out: 1151 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1152 "0306 CONFIG_LINK mbxStatus error x%x " 1153 "HBA state x%x\n", 1154 pmb->u.mb.mbxStatus, vport->port_state); 1155 mempool_free(pmb, phba->mbox_mem_pool); 1156 1157 lpfc_linkdown(phba); 1158 1159 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1160 "0200 CONFIG_LINK bad hba state x%x\n", 1161 vport->port_state); 1162 1163 lpfc_issue_clear_la(phba, vport); 1164 return; 1165 } 1166 1167 /** 1168 * lpfc_sli4_clear_fcf_rr_bmask 1169 * @phba pointer to the struct lpfc_hba for this port. 1170 * This fucnction resets the round robin bit mask and clears the 1171 * fcf priority list. The list deletions are done while holding the 1172 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1173 * from the lpfc_fcf_pri record. 1174 **/ 1175 void 1176 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1177 { 1178 struct lpfc_fcf_pri *fcf_pri; 1179 struct lpfc_fcf_pri *next_fcf_pri; 1180 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1181 spin_lock_irq(&phba->hbalock); 1182 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1183 &phba->fcf.fcf_pri_list, list) { 1184 list_del_init(&fcf_pri->list); 1185 fcf_pri->fcf_rec.flag = 0; 1186 } 1187 spin_unlock_irq(&phba->hbalock); 1188 } 1189 static void 1190 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1191 { 1192 struct lpfc_vport *vport = mboxq->vport; 1193 1194 if (mboxq->u.mb.mbxStatus) { 1195 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1196 "2017 REG_FCFI mbxStatus error x%x " 1197 "HBA state x%x\n", 1198 mboxq->u.mb.mbxStatus, vport->port_state); 1199 goto fail_out; 1200 } 1201 1202 /* Start FCoE discovery by sending a FLOGI. */ 1203 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1204 /* Set the FCFI registered flag */ 1205 spin_lock_irq(&phba->hbalock); 1206 phba->fcf.fcf_flag |= FCF_REGISTERED; 1207 spin_unlock_irq(&phba->hbalock); 1208 1209 /* If there is a pending FCoE event, restart FCF table scan. */ 1210 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1211 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1212 goto fail_out; 1213 1214 /* Mark successful completion of FCF table scan */ 1215 spin_lock_irq(&phba->hbalock); 1216 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1217 phba->hba_flag &= ~FCF_TS_INPROG; 1218 if (vport->port_state != LPFC_FLOGI) { 1219 phba->hba_flag |= FCF_RR_INPROG; 1220 spin_unlock_irq(&phba->hbalock); 1221 lpfc_issue_init_vfi(vport); 1222 goto out; 1223 } 1224 spin_unlock_irq(&phba->hbalock); 1225 goto out; 1226 1227 fail_out: 1228 spin_lock_irq(&phba->hbalock); 1229 phba->hba_flag &= ~FCF_RR_INPROG; 1230 spin_unlock_irq(&phba->hbalock); 1231 out: 1232 mempool_free(mboxq, phba->mbox_mem_pool); 1233 } 1234 1235 /** 1236 * lpfc_fab_name_match - Check if the fcf fabric name match. 1237 * @fab_name: pointer to fabric name. 1238 * @new_fcf_record: pointer to fcf record. 1239 * 1240 * This routine compare the fcf record's fabric name with provided 1241 * fabric name. If the fabric name are identical this function 1242 * returns 1 else return 0. 1243 **/ 1244 static uint32_t 1245 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1246 { 1247 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1248 return 0; 1249 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1250 return 0; 1251 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1252 return 0; 1253 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1254 return 0; 1255 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1256 return 0; 1257 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1258 return 0; 1259 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1260 return 0; 1261 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1262 return 0; 1263 return 1; 1264 } 1265 1266 /** 1267 * lpfc_sw_name_match - Check if the fcf switch name match. 1268 * @fab_name: pointer to fabric name. 1269 * @new_fcf_record: pointer to fcf record. 1270 * 1271 * This routine compare the fcf record's switch name with provided 1272 * switch name. If the switch name are identical this function 1273 * returns 1 else return 0. 1274 **/ 1275 static uint32_t 1276 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1277 { 1278 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1279 return 0; 1280 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1281 return 0; 1282 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1283 return 0; 1284 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1285 return 0; 1286 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1287 return 0; 1288 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1289 return 0; 1290 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1291 return 0; 1292 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1293 return 0; 1294 return 1; 1295 } 1296 1297 /** 1298 * lpfc_mac_addr_match - Check if the fcf mac address match. 1299 * @mac_addr: pointer to mac address. 1300 * @new_fcf_record: pointer to fcf record. 1301 * 1302 * This routine compare the fcf record's mac address with HBA's 1303 * FCF mac address. If the mac addresses are identical this function 1304 * returns 1 else return 0. 1305 **/ 1306 static uint32_t 1307 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1308 { 1309 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1310 return 0; 1311 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1312 return 0; 1313 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1314 return 0; 1315 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1316 return 0; 1317 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1318 return 0; 1319 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1320 return 0; 1321 return 1; 1322 } 1323 1324 static bool 1325 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1326 { 1327 return (curr_vlan_id == new_vlan_id); 1328 } 1329 1330 /** 1331 * lpfc_update_fcf_record - Update driver fcf record 1332 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1333 * @phba: pointer to lpfc hba data structure. 1334 * @fcf_index: Index for the lpfc_fcf_record. 1335 * @new_fcf_record: pointer to hba fcf record. 1336 * 1337 * This routine updates the driver FCF priority record from the new HBA FCF 1338 * record. This routine is called with the host lock held. 1339 **/ 1340 static void 1341 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1342 struct fcf_record *new_fcf_record 1343 ) 1344 { 1345 struct lpfc_fcf_pri *fcf_pri; 1346 1347 lockdep_assert_held(&phba->hbalock); 1348 1349 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1350 fcf_pri->fcf_rec.fcf_index = fcf_index; 1351 /* FCF record priority */ 1352 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1353 1354 } 1355 1356 /** 1357 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1358 * @fcf: pointer to driver fcf record. 1359 * @new_fcf_record: pointer to fcf record. 1360 * 1361 * This routine copies the FCF information from the FCF 1362 * record to lpfc_hba data structure. 1363 **/ 1364 static void 1365 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1366 struct fcf_record *new_fcf_record) 1367 { 1368 /* Fabric name */ 1369 fcf_rec->fabric_name[0] = 1370 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1371 fcf_rec->fabric_name[1] = 1372 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1373 fcf_rec->fabric_name[2] = 1374 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1375 fcf_rec->fabric_name[3] = 1376 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1377 fcf_rec->fabric_name[4] = 1378 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1379 fcf_rec->fabric_name[5] = 1380 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1381 fcf_rec->fabric_name[6] = 1382 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1383 fcf_rec->fabric_name[7] = 1384 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1385 /* Mac address */ 1386 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1387 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1388 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1389 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1390 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1391 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1392 /* FCF record index */ 1393 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1394 /* FCF record priority */ 1395 fcf_rec->priority = new_fcf_record->fip_priority; 1396 /* Switch name */ 1397 fcf_rec->switch_name[0] = 1398 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1399 fcf_rec->switch_name[1] = 1400 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1401 fcf_rec->switch_name[2] = 1402 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1403 fcf_rec->switch_name[3] = 1404 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1405 fcf_rec->switch_name[4] = 1406 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1407 fcf_rec->switch_name[5] = 1408 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1409 fcf_rec->switch_name[6] = 1410 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1411 fcf_rec->switch_name[7] = 1412 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1413 } 1414 1415 /** 1416 * lpfc_update_fcf_record - Update driver fcf record 1417 * @phba: pointer to lpfc hba data structure. 1418 * @fcf_rec: pointer to driver fcf record. 1419 * @new_fcf_record: pointer to hba fcf record. 1420 * @addr_mode: address mode to be set to the driver fcf record. 1421 * @vlan_id: vlan tag to be set to the driver fcf record. 1422 * @flag: flag bits to be set to the driver fcf record. 1423 * 1424 * This routine updates the driver FCF record from the new HBA FCF record 1425 * together with the address mode, vlan_id, and other informations. This 1426 * routine is called with the host lock held. 1427 **/ 1428 static void 1429 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1430 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1431 uint16_t vlan_id, uint32_t flag) 1432 { 1433 lockdep_assert_held(&phba->hbalock); 1434 1435 /* Copy the fields from the HBA's FCF record */ 1436 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1437 /* Update other fields of driver FCF record */ 1438 fcf_rec->addr_mode = addr_mode; 1439 fcf_rec->vlan_id = vlan_id; 1440 fcf_rec->flag |= (flag | RECORD_VALID); 1441 __lpfc_update_fcf_record_pri(phba, 1442 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1443 new_fcf_record); 1444 } 1445 1446 /** 1447 * lpfc_register_fcf - Register the FCF with hba. 1448 * @phba: pointer to lpfc hba data structure. 1449 * 1450 * This routine issues a register fcfi mailbox command to register 1451 * the fcf with HBA. 1452 **/ 1453 static void 1454 lpfc_register_fcf(struct lpfc_hba *phba) 1455 { 1456 LPFC_MBOXQ_t *fcf_mbxq; 1457 int rc; 1458 1459 spin_lock_irq(&phba->hbalock); 1460 /* If the FCF is not available do nothing. */ 1461 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1462 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1463 spin_unlock_irq(&phba->hbalock); 1464 return; 1465 } 1466 1467 /* The FCF is already registered, start discovery */ 1468 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1469 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1470 phba->hba_flag &= ~FCF_TS_INPROG; 1471 if (phba->pport->port_state != LPFC_FLOGI && 1472 phba->pport->fc_flag & FC_FABRIC) { 1473 phba->hba_flag |= FCF_RR_INPROG; 1474 spin_unlock_irq(&phba->hbalock); 1475 lpfc_initial_flogi(phba->pport); 1476 return; 1477 } 1478 spin_unlock_irq(&phba->hbalock); 1479 return; 1480 } 1481 spin_unlock_irq(&phba->hbalock); 1482 1483 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1484 if (!fcf_mbxq) { 1485 spin_lock_irq(&phba->hbalock); 1486 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1487 spin_unlock_irq(&phba->hbalock); 1488 return; 1489 } 1490 1491 lpfc_reg_fcfi(phba, fcf_mbxq); 1492 fcf_mbxq->vport = phba->pport; 1493 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1494 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1495 if (rc == MBX_NOT_FINISHED) { 1496 spin_lock_irq(&phba->hbalock); 1497 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1498 spin_unlock_irq(&phba->hbalock); 1499 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1500 } 1501 1502 return; 1503 } 1504 1505 /** 1506 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1507 * @phba: pointer to lpfc hba data structure. 1508 * @new_fcf_record: pointer to fcf record. 1509 * @boot_flag: Indicates if this record used by boot bios. 1510 * @addr_mode: The address mode to be used by this FCF 1511 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1512 * 1513 * This routine compare the fcf record with connect list obtained from the 1514 * config region to decide if this FCF can be used for SAN discovery. It returns 1515 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1516 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1517 * is used by boot bios and addr_mode will indicate the addressing mode to be 1518 * used for this FCF when the function returns. 1519 * If the FCF record need to be used with a particular vlan id, the vlan is 1520 * set in the vlan_id on return of the function. If not VLAN tagging need to 1521 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1522 **/ 1523 static int 1524 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1525 struct fcf_record *new_fcf_record, 1526 uint32_t *boot_flag, uint32_t *addr_mode, 1527 uint16_t *vlan_id) 1528 { 1529 struct lpfc_fcf_conn_entry *conn_entry; 1530 int i, j, fcf_vlan_id = 0; 1531 1532 /* Find the lowest VLAN id in the FCF record */ 1533 for (i = 0; i < 512; i++) { 1534 if (new_fcf_record->vlan_bitmap[i]) { 1535 fcf_vlan_id = i * 8; 1536 j = 0; 1537 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1538 j++; 1539 fcf_vlan_id++; 1540 } 1541 break; 1542 } 1543 } 1544 1545 /* FCF not valid/available or solicitation in progress */ 1546 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1547 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1548 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1549 return 0; 1550 1551 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1552 *boot_flag = 0; 1553 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1554 new_fcf_record); 1555 if (phba->valid_vlan) 1556 *vlan_id = phba->vlan_id; 1557 else 1558 *vlan_id = LPFC_FCOE_NULL_VID; 1559 return 1; 1560 } 1561 1562 /* 1563 * If there are no FCF connection table entry, driver connect to all 1564 * FCFs. 1565 */ 1566 if (list_empty(&phba->fcf_conn_rec_list)) { 1567 *boot_flag = 0; 1568 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1569 new_fcf_record); 1570 1571 /* 1572 * When there are no FCF connect entries, use driver's default 1573 * addressing mode - FPMA. 1574 */ 1575 if (*addr_mode & LPFC_FCF_FPMA) 1576 *addr_mode = LPFC_FCF_FPMA; 1577 1578 /* If FCF record report a vlan id use that vlan id */ 1579 if (fcf_vlan_id) 1580 *vlan_id = fcf_vlan_id; 1581 else 1582 *vlan_id = LPFC_FCOE_NULL_VID; 1583 return 1; 1584 } 1585 1586 list_for_each_entry(conn_entry, 1587 &phba->fcf_conn_rec_list, list) { 1588 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1589 continue; 1590 1591 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1592 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1593 new_fcf_record)) 1594 continue; 1595 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1596 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1597 new_fcf_record)) 1598 continue; 1599 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1600 /* 1601 * If the vlan bit map does not have the bit set for the 1602 * vlan id to be used, then it is not a match. 1603 */ 1604 if (!(new_fcf_record->vlan_bitmap 1605 [conn_entry->conn_rec.vlan_tag / 8] & 1606 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1607 continue; 1608 } 1609 1610 /* 1611 * If connection record does not support any addressing mode, 1612 * skip the FCF record. 1613 */ 1614 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1615 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1616 continue; 1617 1618 /* 1619 * Check if the connection record specifies a required 1620 * addressing mode. 1621 */ 1622 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1623 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1624 1625 /* 1626 * If SPMA required but FCF not support this continue. 1627 */ 1628 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1629 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1630 new_fcf_record) & LPFC_FCF_SPMA)) 1631 continue; 1632 1633 /* 1634 * If FPMA required but FCF not support this continue. 1635 */ 1636 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1637 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1638 new_fcf_record) & LPFC_FCF_FPMA)) 1639 continue; 1640 } 1641 1642 /* 1643 * This fcf record matches filtering criteria. 1644 */ 1645 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1646 *boot_flag = 1; 1647 else 1648 *boot_flag = 0; 1649 1650 /* 1651 * If user did not specify any addressing mode, or if the 1652 * preferred addressing mode specified by user is not supported 1653 * by FCF, allow fabric to pick the addressing mode. 1654 */ 1655 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1656 new_fcf_record); 1657 /* 1658 * If the user specified a required address mode, assign that 1659 * address mode 1660 */ 1661 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1662 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1663 *addr_mode = (conn_entry->conn_rec.flags & 1664 FCFCNCT_AM_SPMA) ? 1665 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1666 /* 1667 * If the user specified a preferred address mode, use the 1668 * addr mode only if FCF support the addr_mode. 1669 */ 1670 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1671 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1672 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1673 (*addr_mode & LPFC_FCF_SPMA)) 1674 *addr_mode = LPFC_FCF_SPMA; 1675 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1676 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1677 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1678 (*addr_mode & LPFC_FCF_FPMA)) 1679 *addr_mode = LPFC_FCF_FPMA; 1680 1681 /* If matching connect list has a vlan id, use it */ 1682 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1683 *vlan_id = conn_entry->conn_rec.vlan_tag; 1684 /* 1685 * If no vlan id is specified in connect list, use the vlan id 1686 * in the FCF record 1687 */ 1688 else if (fcf_vlan_id) 1689 *vlan_id = fcf_vlan_id; 1690 else 1691 *vlan_id = LPFC_FCOE_NULL_VID; 1692 1693 return 1; 1694 } 1695 1696 return 0; 1697 } 1698 1699 /** 1700 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1701 * @phba: pointer to lpfc hba data structure. 1702 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1703 * 1704 * This function check if there is any fcoe event pending while driver 1705 * scan FCF entries. If there is any pending event, it will restart the 1706 * FCF saning and return 1 else return 0. 1707 */ 1708 int 1709 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1710 { 1711 /* 1712 * If the Link is up and no FCoE events while in the 1713 * FCF discovery, no need to restart FCF discovery. 1714 */ 1715 if ((phba->link_state >= LPFC_LINK_UP) && 1716 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1717 return 0; 1718 1719 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1720 "2768 Pending link or FCF event during current " 1721 "handling of the previous event: link_state:x%x, " 1722 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1723 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1724 phba->fcoe_eventtag); 1725 1726 spin_lock_irq(&phba->hbalock); 1727 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1728 spin_unlock_irq(&phba->hbalock); 1729 1730 if (phba->link_state >= LPFC_LINK_UP) { 1731 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1732 "2780 Restart FCF table scan due to " 1733 "pending FCF event:evt_tag_at_scan:x%x, " 1734 "evt_tag_current:x%x\n", 1735 phba->fcoe_eventtag_at_fcf_scan, 1736 phba->fcoe_eventtag); 1737 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1738 } else { 1739 /* 1740 * Do not continue FCF discovery and clear FCF_TS_INPROG 1741 * flag 1742 */ 1743 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1744 "2833 Stop FCF discovery process due to link " 1745 "state change (x%x)\n", phba->link_state); 1746 spin_lock_irq(&phba->hbalock); 1747 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1748 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1749 spin_unlock_irq(&phba->hbalock); 1750 } 1751 1752 /* Unregister the currently registered FCF if required */ 1753 if (unreg_fcf) { 1754 spin_lock_irq(&phba->hbalock); 1755 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1756 spin_unlock_irq(&phba->hbalock); 1757 lpfc_sli4_unregister_fcf(phba); 1758 } 1759 return 1; 1760 } 1761 1762 /** 1763 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1764 * @phba: pointer to lpfc hba data structure. 1765 * @fcf_cnt: number of eligible fcf record seen so far. 1766 * 1767 * This function makes an running random selection decision on FCF record to 1768 * use through a sequence of @fcf_cnt eligible FCF records with equal 1769 * probability. To perform integer manunipulation of random numbers with 1770 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1771 * from prandom_u32() are taken as the random random number generated. 1772 * 1773 * Returns true when outcome is for the newly read FCF record should be 1774 * chosen; otherwise, return false when outcome is for keeping the previously 1775 * chosen FCF record. 1776 **/ 1777 static bool 1778 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1779 { 1780 uint32_t rand_num; 1781 1782 /* Get 16-bit uniform random number */ 1783 rand_num = 0xFFFF & prandom_u32(); 1784 1785 /* Decision with probability 1/fcf_cnt */ 1786 if ((fcf_cnt * rand_num) < 0xFFFF) 1787 return true; 1788 else 1789 return false; 1790 } 1791 1792 /** 1793 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1794 * @phba: pointer to lpfc hba data structure. 1795 * @mboxq: pointer to mailbox object. 1796 * @next_fcf_index: pointer to holder of next fcf index. 1797 * 1798 * This routine parses the non-embedded fcf mailbox command by performing the 1799 * necessarily error checking, non-embedded read FCF record mailbox command 1800 * SGE parsing, and endianness swapping. 1801 * 1802 * Returns the pointer to the new FCF record in the non-embedded mailbox 1803 * command DMA memory if successfully, other NULL. 1804 */ 1805 static struct fcf_record * 1806 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1807 uint16_t *next_fcf_index) 1808 { 1809 void *virt_addr; 1810 struct lpfc_mbx_sge sge; 1811 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1812 uint32_t shdr_status, shdr_add_status, if_type; 1813 union lpfc_sli4_cfg_shdr *shdr; 1814 struct fcf_record *new_fcf_record; 1815 1816 /* Get the first SGE entry from the non-embedded DMA memory. This 1817 * routine only uses a single SGE. 1818 */ 1819 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1820 if (unlikely(!mboxq->sge_array)) { 1821 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1822 "2524 Failed to get the non-embedded SGE " 1823 "virtual address\n"); 1824 return NULL; 1825 } 1826 virt_addr = mboxq->sge_array->addr[0]; 1827 1828 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1829 lpfc_sli_pcimem_bcopy(shdr, shdr, 1830 sizeof(union lpfc_sli4_cfg_shdr)); 1831 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1832 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1833 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1834 if (shdr_status || shdr_add_status) { 1835 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1836 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1837 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1838 "2726 READ_FCF_RECORD Indicates empty " 1839 "FCF table.\n"); 1840 else 1841 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1842 "2521 READ_FCF_RECORD mailbox failed " 1843 "with status x%x add_status x%x, " 1844 "mbx\n", shdr_status, shdr_add_status); 1845 return NULL; 1846 } 1847 1848 /* Interpreting the returned information of the FCF record */ 1849 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1850 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1851 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1852 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1853 new_fcf_record = (struct fcf_record *)(virt_addr + 1854 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1855 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1856 offsetof(struct fcf_record, vlan_bitmap)); 1857 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1858 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1859 1860 return new_fcf_record; 1861 } 1862 1863 /** 1864 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1865 * @phba: pointer to lpfc hba data structure. 1866 * @fcf_record: pointer to the fcf record. 1867 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1868 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1869 * 1870 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1871 * enabled. 1872 **/ 1873 static void 1874 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1875 struct fcf_record *fcf_record, 1876 uint16_t vlan_id, 1877 uint16_t next_fcf_index) 1878 { 1879 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1880 "2764 READ_FCF_RECORD:\n" 1881 "\tFCF_Index : x%x\n" 1882 "\tFCF_Avail : x%x\n" 1883 "\tFCF_Valid : x%x\n" 1884 "\tFCF_SOL : x%x\n" 1885 "\tFIP_Priority : x%x\n" 1886 "\tMAC_Provider : x%x\n" 1887 "\tLowest VLANID : x%x\n" 1888 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1889 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1890 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1891 "\tNext_FCF_Index: x%x\n", 1892 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1893 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1894 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1895 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1896 fcf_record->fip_priority, 1897 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1898 vlan_id, 1899 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1900 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1901 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1902 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1903 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1904 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1905 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1906 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1907 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1908 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1909 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1910 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1911 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1912 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1913 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1914 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1915 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1916 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1917 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1918 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1919 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1920 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1921 next_fcf_index); 1922 } 1923 1924 /** 1925 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1926 * @phba: pointer to lpfc hba data structure. 1927 * @fcf_rec: pointer to an existing FCF record. 1928 * @new_fcf_record: pointer to a new FCF record. 1929 * @new_vlan_id: vlan id from the new FCF record. 1930 * 1931 * This function performs matching test of a new FCF record against an existing 1932 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1933 * will not be used as part of the FCF record matching criteria. 1934 * 1935 * Returns true if all the fields matching, otherwise returns false. 1936 */ 1937 static bool 1938 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1939 struct lpfc_fcf_rec *fcf_rec, 1940 struct fcf_record *new_fcf_record, 1941 uint16_t new_vlan_id) 1942 { 1943 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1944 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1945 return false; 1946 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1947 return false; 1948 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1949 return false; 1950 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1951 return false; 1952 if (fcf_rec->priority != new_fcf_record->fip_priority) 1953 return false; 1954 return true; 1955 } 1956 1957 /** 1958 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1959 * @vport: Pointer to vport object. 1960 * @fcf_index: index to next fcf. 1961 * 1962 * This function processing the roundrobin fcf failover to next fcf index. 1963 * When this function is invoked, there will be a current fcf registered 1964 * for flogi. 1965 * Return: 0 for continue retrying flogi on currently registered fcf; 1966 * 1 for stop flogi on currently registered fcf; 1967 */ 1968 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1969 { 1970 struct lpfc_hba *phba = vport->phba; 1971 int rc; 1972 1973 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1974 spin_lock_irq(&phba->hbalock); 1975 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1976 spin_unlock_irq(&phba->hbalock); 1977 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1978 "2872 Devloss tmo with no eligible " 1979 "FCF, unregister in-use FCF (x%x) " 1980 "and rescan FCF table\n", 1981 phba->fcf.current_rec.fcf_indx); 1982 lpfc_unregister_fcf_rescan(phba); 1983 goto stop_flogi_current_fcf; 1984 } 1985 /* Mark the end to FLOGI roundrobin failover */ 1986 phba->hba_flag &= ~FCF_RR_INPROG; 1987 /* Allow action to new fcf asynchronous event */ 1988 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1989 spin_unlock_irq(&phba->hbalock); 1990 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1991 "2865 No FCF available, stop roundrobin FCF " 1992 "failover and change port state:x%x/x%x\n", 1993 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1994 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1995 goto stop_flogi_current_fcf; 1996 } else { 1997 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1998 "2794 Try FLOGI roundrobin FCF failover to " 1999 "(x%x)\n", fcf_index); 2000 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2001 if (rc) 2002 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2003 "2761 FLOGI roundrobin FCF failover " 2004 "failed (rc:x%x) to read FCF (x%x)\n", 2005 rc, phba->fcf.current_rec.fcf_indx); 2006 else 2007 goto stop_flogi_current_fcf; 2008 } 2009 return 0; 2010 2011 stop_flogi_current_fcf: 2012 lpfc_can_disctmo(vport); 2013 return 1; 2014 } 2015 2016 /** 2017 * lpfc_sli4_fcf_pri_list_del 2018 * @phba: pointer to lpfc hba data structure. 2019 * @fcf_index the index of the fcf record to delete 2020 * This routine checks the on list flag of the fcf_index to be deleted. 2021 * If it is one the list then it is removed from the list, and the flag 2022 * is cleared. This routine grab the hbalock before removing the fcf 2023 * record from the list. 2024 **/ 2025 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2026 uint16_t fcf_index) 2027 { 2028 struct lpfc_fcf_pri *new_fcf_pri; 2029 2030 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2031 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2032 "3058 deleting idx x%x pri x%x flg x%x\n", 2033 fcf_index, new_fcf_pri->fcf_rec.priority, 2034 new_fcf_pri->fcf_rec.flag); 2035 spin_lock_irq(&phba->hbalock); 2036 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2037 if (phba->fcf.current_rec.priority == 2038 new_fcf_pri->fcf_rec.priority) 2039 phba->fcf.eligible_fcf_cnt--; 2040 list_del_init(&new_fcf_pri->list); 2041 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2042 } 2043 spin_unlock_irq(&phba->hbalock); 2044 } 2045 2046 /** 2047 * lpfc_sli4_set_fcf_flogi_fail 2048 * @phba: pointer to lpfc hba data structure. 2049 * @fcf_index the index of the fcf record to update 2050 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2051 * flag so the the round robin slection for the particular priority level 2052 * will try a different fcf record that does not have this bit set. 2053 * If the fcf record is re-read for any reason this flag is cleared brfore 2054 * adding it to the priority list. 2055 **/ 2056 void 2057 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2058 { 2059 struct lpfc_fcf_pri *new_fcf_pri; 2060 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2061 spin_lock_irq(&phba->hbalock); 2062 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2063 spin_unlock_irq(&phba->hbalock); 2064 } 2065 2066 /** 2067 * lpfc_sli4_fcf_pri_list_add 2068 * @phba: pointer to lpfc hba data structure. 2069 * @fcf_index the index of the fcf record to add 2070 * This routine checks the priority of the fcf_index to be added. 2071 * If it is a lower priority than the current head of the fcf_pri list 2072 * then it is added to the list in the right order. 2073 * If it is the same priority as the current head of the list then it 2074 * is added to the head of the list and its bit in the rr_bmask is set. 2075 * If the fcf_index to be added is of a higher priority than the current 2076 * head of the list then the rr_bmask is cleared, its bit is set in the 2077 * rr_bmask and it is added to the head of the list. 2078 * returns: 2079 * 0=success 1=failure 2080 **/ 2081 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2082 uint16_t fcf_index, 2083 struct fcf_record *new_fcf_record) 2084 { 2085 uint16_t current_fcf_pri; 2086 uint16_t last_index; 2087 struct lpfc_fcf_pri *fcf_pri; 2088 struct lpfc_fcf_pri *next_fcf_pri; 2089 struct lpfc_fcf_pri *new_fcf_pri; 2090 int ret; 2091 2092 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2093 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2094 "3059 adding idx x%x pri x%x flg x%x\n", 2095 fcf_index, new_fcf_record->fip_priority, 2096 new_fcf_pri->fcf_rec.flag); 2097 spin_lock_irq(&phba->hbalock); 2098 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2099 list_del_init(&new_fcf_pri->list); 2100 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2101 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2102 if (list_empty(&phba->fcf.fcf_pri_list)) { 2103 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2104 ret = lpfc_sli4_fcf_rr_index_set(phba, 2105 new_fcf_pri->fcf_rec.fcf_index); 2106 goto out; 2107 } 2108 2109 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2110 LPFC_SLI4_FCF_TBL_INDX_MAX); 2111 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2112 ret = 0; /* Empty rr list */ 2113 goto out; 2114 } 2115 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2116 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2117 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2118 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2119 memset(phba->fcf.fcf_rr_bmask, 0, 2120 sizeof(*phba->fcf.fcf_rr_bmask)); 2121 /* fcfs_at_this_priority_level = 1; */ 2122 phba->fcf.eligible_fcf_cnt = 1; 2123 } else 2124 /* fcfs_at_this_priority_level++; */ 2125 phba->fcf.eligible_fcf_cnt++; 2126 ret = lpfc_sli4_fcf_rr_index_set(phba, 2127 new_fcf_pri->fcf_rec.fcf_index); 2128 goto out; 2129 } 2130 2131 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2132 &phba->fcf.fcf_pri_list, list) { 2133 if (new_fcf_pri->fcf_rec.priority <= 2134 fcf_pri->fcf_rec.priority) { 2135 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2136 list_add(&new_fcf_pri->list, 2137 &phba->fcf.fcf_pri_list); 2138 else 2139 list_add(&new_fcf_pri->list, 2140 &((struct lpfc_fcf_pri *) 2141 fcf_pri->list.prev)->list); 2142 ret = 0; 2143 goto out; 2144 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2145 || new_fcf_pri->fcf_rec.priority < 2146 next_fcf_pri->fcf_rec.priority) { 2147 list_add(&new_fcf_pri->list, &fcf_pri->list); 2148 ret = 0; 2149 goto out; 2150 } 2151 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2152 continue; 2153 2154 } 2155 ret = 1; 2156 out: 2157 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2158 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2159 spin_unlock_irq(&phba->hbalock); 2160 return ret; 2161 } 2162 2163 /** 2164 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2165 * @phba: pointer to lpfc hba data structure. 2166 * @mboxq: pointer to mailbox object. 2167 * 2168 * This function iterates through all the fcf records available in 2169 * HBA and chooses the optimal FCF record for discovery. After finding 2170 * the FCF for discovery it registers the FCF record and kicks start 2171 * discovery. 2172 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2173 * use an FCF record which matches fabric name and mac address of the 2174 * currently used FCF record. 2175 * If the driver supports only one FCF, it will try to use the FCF record 2176 * used by BOOT_BIOS. 2177 */ 2178 void 2179 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2180 { 2181 struct fcf_record *new_fcf_record; 2182 uint32_t boot_flag, addr_mode; 2183 uint16_t fcf_index, next_fcf_index; 2184 struct lpfc_fcf_rec *fcf_rec = NULL; 2185 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2186 bool select_new_fcf; 2187 int rc; 2188 2189 /* If there is pending FCoE event restart FCF table scan */ 2190 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2191 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2192 return; 2193 } 2194 2195 /* Parse the FCF record from the non-embedded mailbox command */ 2196 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2197 &next_fcf_index); 2198 if (!new_fcf_record) { 2199 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2200 "2765 Mailbox command READ_FCF_RECORD " 2201 "failed to retrieve a FCF record.\n"); 2202 /* Let next new FCF event trigger fast failover */ 2203 spin_lock_irq(&phba->hbalock); 2204 phba->hba_flag &= ~FCF_TS_INPROG; 2205 spin_unlock_irq(&phba->hbalock); 2206 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2207 return; 2208 } 2209 2210 /* Check the FCF record against the connection list */ 2211 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2212 &addr_mode, &vlan_id); 2213 2214 /* Log the FCF record information if turned on */ 2215 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2216 next_fcf_index); 2217 2218 /* 2219 * If the fcf record does not match with connect list entries 2220 * read the next entry; otherwise, this is an eligible FCF 2221 * record for roundrobin FCF failover. 2222 */ 2223 if (!rc) { 2224 lpfc_sli4_fcf_pri_list_del(phba, 2225 bf_get(lpfc_fcf_record_fcf_index, 2226 new_fcf_record)); 2227 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2228 "2781 FCF (x%x) failed connection " 2229 "list check: (x%x/x%x/%x)\n", 2230 bf_get(lpfc_fcf_record_fcf_index, 2231 new_fcf_record), 2232 bf_get(lpfc_fcf_record_fcf_avail, 2233 new_fcf_record), 2234 bf_get(lpfc_fcf_record_fcf_valid, 2235 new_fcf_record), 2236 bf_get(lpfc_fcf_record_fcf_sol, 2237 new_fcf_record)); 2238 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2239 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2240 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2241 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2242 phba->fcf.current_rec.fcf_indx) { 2243 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2244 "2862 FCF (x%x) matches property " 2245 "of in-use FCF (x%x)\n", 2246 bf_get(lpfc_fcf_record_fcf_index, 2247 new_fcf_record), 2248 phba->fcf.current_rec.fcf_indx); 2249 goto read_next_fcf; 2250 } 2251 /* 2252 * In case the current in-use FCF record becomes 2253 * invalid/unavailable during FCF discovery that 2254 * was not triggered by fast FCF failover process, 2255 * treat it as fast FCF failover. 2256 */ 2257 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2258 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2259 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2260 "2835 Invalid in-use FCF " 2261 "(x%x), enter FCF failover " 2262 "table scan.\n", 2263 phba->fcf.current_rec.fcf_indx); 2264 spin_lock_irq(&phba->hbalock); 2265 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2266 spin_unlock_irq(&phba->hbalock); 2267 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2268 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2269 LPFC_FCOE_FCF_GET_FIRST); 2270 return; 2271 } 2272 } 2273 goto read_next_fcf; 2274 } else { 2275 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2276 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2277 new_fcf_record); 2278 if (rc) 2279 goto read_next_fcf; 2280 } 2281 2282 /* 2283 * If this is not the first FCF discovery of the HBA, use last 2284 * FCF record for the discovery. The condition that a rescan 2285 * matches the in-use FCF record: fabric name, switch name, mac 2286 * address, and vlan_id. 2287 */ 2288 spin_lock_irq(&phba->hbalock); 2289 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2290 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2291 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2292 new_fcf_record, vlan_id)) { 2293 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2294 phba->fcf.current_rec.fcf_indx) { 2295 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2296 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2297 /* Stop FCF redisc wait timer */ 2298 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2299 phba); 2300 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2301 /* Fast failover, mark completed */ 2302 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2303 spin_unlock_irq(&phba->hbalock); 2304 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2305 "2836 New FCF matches in-use " 2306 "FCF (x%x), port_state:x%x, " 2307 "fc_flag:x%x\n", 2308 phba->fcf.current_rec.fcf_indx, 2309 phba->pport->port_state, 2310 phba->pport->fc_flag); 2311 goto out; 2312 } else 2313 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2314 "2863 New FCF (x%x) matches " 2315 "property of in-use FCF (x%x)\n", 2316 bf_get(lpfc_fcf_record_fcf_index, 2317 new_fcf_record), 2318 phba->fcf.current_rec.fcf_indx); 2319 } 2320 /* 2321 * Read next FCF record from HBA searching for the matching 2322 * with in-use record only if not during the fast failover 2323 * period. In case of fast failover period, it shall try to 2324 * determine whether the FCF record just read should be the 2325 * next candidate. 2326 */ 2327 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2328 spin_unlock_irq(&phba->hbalock); 2329 goto read_next_fcf; 2330 } 2331 } 2332 /* 2333 * Update on failover FCF record only if it's in FCF fast-failover 2334 * period; otherwise, update on current FCF record. 2335 */ 2336 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2337 fcf_rec = &phba->fcf.failover_rec; 2338 else 2339 fcf_rec = &phba->fcf.current_rec; 2340 2341 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2342 /* 2343 * If the driver FCF record does not have boot flag 2344 * set and new hba fcf record has boot flag set, use 2345 * the new hba fcf record. 2346 */ 2347 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2348 /* Choose this FCF record */ 2349 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2350 "2837 Update current FCF record " 2351 "(x%x) with new FCF record (x%x)\n", 2352 fcf_rec->fcf_indx, 2353 bf_get(lpfc_fcf_record_fcf_index, 2354 new_fcf_record)); 2355 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2356 addr_mode, vlan_id, BOOT_ENABLE); 2357 spin_unlock_irq(&phba->hbalock); 2358 goto read_next_fcf; 2359 } 2360 /* 2361 * If the driver FCF record has boot flag set and the 2362 * new hba FCF record does not have boot flag, read 2363 * the next FCF record. 2364 */ 2365 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2366 spin_unlock_irq(&phba->hbalock); 2367 goto read_next_fcf; 2368 } 2369 /* 2370 * If the new hba FCF record has lower priority value 2371 * than the driver FCF record, use the new record. 2372 */ 2373 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2374 /* Choose the new FCF record with lower priority */ 2375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2376 "2838 Update current FCF record " 2377 "(x%x) with new FCF record (x%x)\n", 2378 fcf_rec->fcf_indx, 2379 bf_get(lpfc_fcf_record_fcf_index, 2380 new_fcf_record)); 2381 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2382 addr_mode, vlan_id, 0); 2383 /* Reset running random FCF selection count */ 2384 phba->fcf.eligible_fcf_cnt = 1; 2385 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2386 /* Update running random FCF selection count */ 2387 phba->fcf.eligible_fcf_cnt++; 2388 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2389 phba->fcf.eligible_fcf_cnt); 2390 if (select_new_fcf) { 2391 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2392 "2839 Update current FCF record " 2393 "(x%x) with new FCF record (x%x)\n", 2394 fcf_rec->fcf_indx, 2395 bf_get(lpfc_fcf_record_fcf_index, 2396 new_fcf_record)); 2397 /* Choose the new FCF by random selection */ 2398 __lpfc_update_fcf_record(phba, fcf_rec, 2399 new_fcf_record, 2400 addr_mode, vlan_id, 0); 2401 } 2402 } 2403 spin_unlock_irq(&phba->hbalock); 2404 goto read_next_fcf; 2405 } 2406 /* 2407 * This is the first suitable FCF record, choose this record for 2408 * initial best-fit FCF. 2409 */ 2410 if (fcf_rec) { 2411 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2412 "2840 Update initial FCF candidate " 2413 "with FCF (x%x)\n", 2414 bf_get(lpfc_fcf_record_fcf_index, 2415 new_fcf_record)); 2416 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2417 addr_mode, vlan_id, (boot_flag ? 2418 BOOT_ENABLE : 0)); 2419 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2420 /* Setup initial running random FCF selection count */ 2421 phba->fcf.eligible_fcf_cnt = 1; 2422 } 2423 spin_unlock_irq(&phba->hbalock); 2424 goto read_next_fcf; 2425 2426 read_next_fcf: 2427 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2428 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2429 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2430 /* 2431 * Case of FCF fast failover scan 2432 */ 2433 2434 /* 2435 * It has not found any suitable FCF record, cancel 2436 * FCF scan inprogress, and do nothing 2437 */ 2438 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2439 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2440 "2782 No suitable FCF found: " 2441 "(x%x/x%x)\n", 2442 phba->fcoe_eventtag_at_fcf_scan, 2443 bf_get(lpfc_fcf_record_fcf_index, 2444 new_fcf_record)); 2445 spin_lock_irq(&phba->hbalock); 2446 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2447 phba->hba_flag &= ~FCF_TS_INPROG; 2448 spin_unlock_irq(&phba->hbalock); 2449 /* Unregister in-use FCF and rescan */ 2450 lpfc_printf_log(phba, KERN_INFO, 2451 LOG_FIP, 2452 "2864 On devloss tmo " 2453 "unreg in-use FCF and " 2454 "rescan FCF table\n"); 2455 lpfc_unregister_fcf_rescan(phba); 2456 return; 2457 } 2458 /* 2459 * Let next new FCF event trigger fast failover 2460 */ 2461 phba->hba_flag &= ~FCF_TS_INPROG; 2462 spin_unlock_irq(&phba->hbalock); 2463 return; 2464 } 2465 /* 2466 * It has found a suitable FCF record that is not 2467 * the same as in-use FCF record, unregister the 2468 * in-use FCF record, replace the in-use FCF record 2469 * with the new FCF record, mark FCF fast failover 2470 * completed, and then start register the new FCF 2471 * record. 2472 */ 2473 2474 /* Unregister the current in-use FCF record */ 2475 lpfc_unregister_fcf(phba); 2476 2477 /* Replace in-use record with the new record */ 2478 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2479 "2842 Replace in-use FCF (x%x) " 2480 "with failover FCF (x%x)\n", 2481 phba->fcf.current_rec.fcf_indx, 2482 phba->fcf.failover_rec.fcf_indx); 2483 memcpy(&phba->fcf.current_rec, 2484 &phba->fcf.failover_rec, 2485 sizeof(struct lpfc_fcf_rec)); 2486 /* 2487 * Mark the fast FCF failover rediscovery completed 2488 * and the start of the first round of the roundrobin 2489 * FCF failover. 2490 */ 2491 spin_lock_irq(&phba->hbalock); 2492 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2493 spin_unlock_irq(&phba->hbalock); 2494 /* Register to the new FCF record */ 2495 lpfc_register_fcf(phba); 2496 } else { 2497 /* 2498 * In case of transaction period to fast FCF failover, 2499 * do nothing when search to the end of the FCF table. 2500 */ 2501 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2502 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2503 return; 2504 2505 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2506 phba->fcf.fcf_flag & FCF_IN_USE) { 2507 /* 2508 * In case the current in-use FCF record no 2509 * longer existed during FCF discovery that 2510 * was not triggered by fast FCF failover 2511 * process, treat it as fast FCF failover. 2512 */ 2513 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2514 "2841 In-use FCF record (x%x) " 2515 "not reported, entering fast " 2516 "FCF failover mode scanning.\n", 2517 phba->fcf.current_rec.fcf_indx); 2518 spin_lock_irq(&phba->hbalock); 2519 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2520 spin_unlock_irq(&phba->hbalock); 2521 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2522 LPFC_FCOE_FCF_GET_FIRST); 2523 return; 2524 } 2525 /* Register to the new FCF record */ 2526 lpfc_register_fcf(phba); 2527 } 2528 } else 2529 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2530 return; 2531 2532 out: 2533 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2534 lpfc_register_fcf(phba); 2535 2536 return; 2537 } 2538 2539 /** 2540 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2541 * @phba: pointer to lpfc hba data structure. 2542 * @mboxq: pointer to mailbox object. 2543 * 2544 * This is the callback function for FLOGI failure roundrobin FCF failover 2545 * read FCF record mailbox command from the eligible FCF record bmask for 2546 * performing the failover. If the FCF read back is not valid/available, it 2547 * fails through to retrying FLOGI to the currently registered FCF again. 2548 * Otherwise, if the FCF read back is valid and available, it will set the 2549 * newly read FCF record to the failover FCF record, unregister currently 2550 * registered FCF record, copy the failover FCF record to the current 2551 * FCF record, and then register the current FCF record before proceeding 2552 * to trying FLOGI on the new failover FCF. 2553 */ 2554 void 2555 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2556 { 2557 struct fcf_record *new_fcf_record; 2558 uint32_t boot_flag, addr_mode; 2559 uint16_t next_fcf_index, fcf_index; 2560 uint16_t current_fcf_index; 2561 uint16_t vlan_id; 2562 int rc; 2563 2564 /* If link state is not up, stop the roundrobin failover process */ 2565 if (phba->link_state < LPFC_LINK_UP) { 2566 spin_lock_irq(&phba->hbalock); 2567 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2568 phba->hba_flag &= ~FCF_RR_INPROG; 2569 spin_unlock_irq(&phba->hbalock); 2570 goto out; 2571 } 2572 2573 /* Parse the FCF record from the non-embedded mailbox command */ 2574 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2575 &next_fcf_index); 2576 if (!new_fcf_record) { 2577 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2578 "2766 Mailbox command READ_FCF_RECORD " 2579 "failed to retrieve a FCF record. " 2580 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2581 phba->fcf.fcf_flag); 2582 lpfc_unregister_fcf_rescan(phba); 2583 goto out; 2584 } 2585 2586 /* Get the needed parameters from FCF record */ 2587 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2588 &addr_mode, &vlan_id); 2589 2590 /* Log the FCF record information if turned on */ 2591 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2592 next_fcf_index); 2593 2594 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2595 if (!rc) { 2596 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2597 "2848 Remove ineligible FCF (x%x) from " 2598 "from roundrobin bmask\n", fcf_index); 2599 /* Clear roundrobin bmask bit for ineligible FCF */ 2600 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2601 /* Perform next round of roundrobin FCF failover */ 2602 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2603 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2604 if (rc) 2605 goto out; 2606 goto error_out; 2607 } 2608 2609 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2610 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2611 "2760 Perform FLOGI roundrobin FCF failover: " 2612 "FCF (x%x) back to FCF (x%x)\n", 2613 phba->fcf.current_rec.fcf_indx, fcf_index); 2614 /* Wait 500 ms before retrying FLOGI to current FCF */ 2615 msleep(500); 2616 lpfc_issue_init_vfi(phba->pport); 2617 goto out; 2618 } 2619 2620 /* Upload new FCF record to the failover FCF record */ 2621 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2622 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2623 phba->fcf.failover_rec.fcf_indx, fcf_index); 2624 spin_lock_irq(&phba->hbalock); 2625 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2626 new_fcf_record, addr_mode, vlan_id, 2627 (boot_flag ? BOOT_ENABLE : 0)); 2628 spin_unlock_irq(&phba->hbalock); 2629 2630 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2631 2632 /* Unregister the current in-use FCF record */ 2633 lpfc_unregister_fcf(phba); 2634 2635 /* Replace in-use record with the new record */ 2636 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2637 sizeof(struct lpfc_fcf_rec)); 2638 2639 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2640 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2641 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2642 2643 error_out: 2644 lpfc_register_fcf(phba); 2645 out: 2646 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2647 } 2648 2649 /** 2650 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2651 * @phba: pointer to lpfc hba data structure. 2652 * @mboxq: pointer to mailbox object. 2653 * 2654 * This is the callback function of read FCF record mailbox command for 2655 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2656 * failover when a new FCF event happened. If the FCF read back is 2657 * valid/available and it passes the connection list check, it updates 2658 * the bmask for the eligible FCF record for roundrobin failover. 2659 */ 2660 void 2661 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2662 { 2663 struct fcf_record *new_fcf_record; 2664 uint32_t boot_flag, addr_mode; 2665 uint16_t fcf_index, next_fcf_index; 2666 uint16_t vlan_id; 2667 int rc; 2668 2669 /* If link state is not up, no need to proceed */ 2670 if (phba->link_state < LPFC_LINK_UP) 2671 goto out; 2672 2673 /* If FCF discovery period is over, no need to proceed */ 2674 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2675 goto out; 2676 2677 /* Parse the FCF record from the non-embedded mailbox command */ 2678 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2679 &next_fcf_index); 2680 if (!new_fcf_record) { 2681 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2682 "2767 Mailbox command READ_FCF_RECORD " 2683 "failed to retrieve a FCF record.\n"); 2684 goto out; 2685 } 2686 2687 /* Check the connection list for eligibility */ 2688 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2689 &addr_mode, &vlan_id); 2690 2691 /* Log the FCF record information if turned on */ 2692 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2693 next_fcf_index); 2694 2695 if (!rc) 2696 goto out; 2697 2698 /* Update the eligible FCF record index bmask */ 2699 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2700 2701 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2702 2703 out: 2704 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2705 } 2706 2707 /** 2708 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2709 * @phba: pointer to lpfc hba data structure. 2710 * @mboxq: pointer to mailbox data structure. 2711 * 2712 * This function handles completion of init vfi mailbox command. 2713 */ 2714 static void 2715 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2716 { 2717 struct lpfc_vport *vport = mboxq->vport; 2718 2719 /* 2720 * VFI not supported on interface type 0, just do the flogi 2721 * Also continue if the VFI is in use - just use the same one. 2722 */ 2723 if (mboxq->u.mb.mbxStatus && 2724 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2725 LPFC_SLI_INTF_IF_TYPE_0) && 2726 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2727 lpfc_printf_vlog(vport, KERN_ERR, 2728 LOG_MBOX, 2729 "2891 Init VFI mailbox failed 0x%x\n", 2730 mboxq->u.mb.mbxStatus); 2731 mempool_free(mboxq, phba->mbox_mem_pool); 2732 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2733 return; 2734 } 2735 2736 lpfc_initial_flogi(vport); 2737 mempool_free(mboxq, phba->mbox_mem_pool); 2738 return; 2739 } 2740 2741 /** 2742 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2743 * @vport: pointer to lpfc_vport data structure. 2744 * 2745 * This function issue a init_vfi mailbox command to initialize the VFI and 2746 * VPI for the physical port. 2747 */ 2748 void 2749 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2750 { 2751 LPFC_MBOXQ_t *mboxq; 2752 int rc; 2753 struct lpfc_hba *phba = vport->phba; 2754 2755 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2756 if (!mboxq) { 2757 lpfc_printf_vlog(vport, KERN_ERR, 2758 LOG_MBOX, "2892 Failed to allocate " 2759 "init_vfi mailbox\n"); 2760 return; 2761 } 2762 lpfc_init_vfi(mboxq, vport); 2763 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2764 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2765 if (rc == MBX_NOT_FINISHED) { 2766 lpfc_printf_vlog(vport, KERN_ERR, 2767 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2768 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2769 } 2770 } 2771 2772 /** 2773 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2774 * @phba: pointer to lpfc hba data structure. 2775 * @mboxq: pointer to mailbox data structure. 2776 * 2777 * This function handles completion of init vpi mailbox command. 2778 */ 2779 void 2780 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2781 { 2782 struct lpfc_vport *vport = mboxq->vport; 2783 struct lpfc_nodelist *ndlp; 2784 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2785 2786 if (mboxq->u.mb.mbxStatus) { 2787 lpfc_printf_vlog(vport, KERN_ERR, 2788 LOG_MBOX, 2789 "2609 Init VPI mailbox failed 0x%x\n", 2790 mboxq->u.mb.mbxStatus); 2791 mempool_free(mboxq, phba->mbox_mem_pool); 2792 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2793 return; 2794 } 2795 spin_lock_irq(shost->host_lock); 2796 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2797 spin_unlock_irq(shost->host_lock); 2798 2799 /* If this port is physical port or FDISC is done, do reg_vpi */ 2800 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2801 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2802 if (!ndlp) 2803 lpfc_printf_vlog(vport, KERN_ERR, 2804 LOG_DISCOVERY, 2805 "2731 Cannot find fabric " 2806 "controller node\n"); 2807 else 2808 lpfc_register_new_vport(phba, vport, ndlp); 2809 mempool_free(mboxq, phba->mbox_mem_pool); 2810 return; 2811 } 2812 2813 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2814 lpfc_initial_fdisc(vport); 2815 else { 2816 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2817 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2818 "2606 No NPIV Fabric support\n"); 2819 } 2820 mempool_free(mboxq, phba->mbox_mem_pool); 2821 return; 2822 } 2823 2824 /** 2825 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2826 * @vport: pointer to lpfc_vport data structure. 2827 * 2828 * This function issue a init_vpi mailbox command to initialize 2829 * VPI for the vport. 2830 */ 2831 void 2832 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2833 { 2834 LPFC_MBOXQ_t *mboxq; 2835 int rc, vpi; 2836 2837 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2838 vpi = lpfc_alloc_vpi(vport->phba); 2839 if (!vpi) { 2840 lpfc_printf_vlog(vport, KERN_ERR, 2841 LOG_MBOX, 2842 "3303 Failed to obtain vport vpi\n"); 2843 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2844 return; 2845 } 2846 vport->vpi = vpi; 2847 } 2848 2849 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2850 if (!mboxq) { 2851 lpfc_printf_vlog(vport, KERN_ERR, 2852 LOG_MBOX, "2607 Failed to allocate " 2853 "init_vpi mailbox\n"); 2854 return; 2855 } 2856 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2857 mboxq->vport = vport; 2858 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2859 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2860 if (rc == MBX_NOT_FINISHED) { 2861 lpfc_printf_vlog(vport, KERN_ERR, 2862 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2863 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2864 } 2865 } 2866 2867 /** 2868 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2869 * @phba: pointer to lpfc hba data structure. 2870 * 2871 * This function loops through the list of vports on the @phba and issues an 2872 * FDISC if possible. 2873 */ 2874 void 2875 lpfc_start_fdiscs(struct lpfc_hba *phba) 2876 { 2877 struct lpfc_vport **vports; 2878 int i; 2879 2880 vports = lpfc_create_vport_work_array(phba); 2881 if (vports != NULL) { 2882 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2883 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2884 continue; 2885 /* There are no vpi for this vport */ 2886 if (vports[i]->vpi > phba->max_vpi) { 2887 lpfc_vport_set_state(vports[i], 2888 FC_VPORT_FAILED); 2889 continue; 2890 } 2891 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2892 lpfc_vport_set_state(vports[i], 2893 FC_VPORT_LINKDOWN); 2894 continue; 2895 } 2896 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2897 lpfc_issue_init_vpi(vports[i]); 2898 continue; 2899 } 2900 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2901 lpfc_initial_fdisc(vports[i]); 2902 else { 2903 lpfc_vport_set_state(vports[i], 2904 FC_VPORT_NO_FABRIC_SUPP); 2905 lpfc_printf_vlog(vports[i], KERN_ERR, 2906 LOG_ELS, 2907 "0259 No NPIV " 2908 "Fabric support\n"); 2909 } 2910 } 2911 } 2912 lpfc_destroy_vport_work_array(phba, vports); 2913 } 2914 2915 void 2916 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2917 { 2918 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2919 struct lpfc_vport *vport = mboxq->vport; 2920 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2921 2922 /* 2923 * VFI not supported for interface type 0, so ignore any mailbox 2924 * error (except VFI in use) and continue with the discovery. 2925 */ 2926 if (mboxq->u.mb.mbxStatus && 2927 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2928 LPFC_SLI_INTF_IF_TYPE_0) && 2929 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2930 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2931 "2018 REG_VFI mbxStatus error x%x " 2932 "HBA state x%x\n", 2933 mboxq->u.mb.mbxStatus, vport->port_state); 2934 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2935 /* FLOGI failed, use loop map to make discovery list */ 2936 lpfc_disc_list_loopmap(vport); 2937 /* Start discovery */ 2938 lpfc_disc_start(vport); 2939 goto out_free_mem; 2940 } 2941 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2942 goto out_free_mem; 2943 } 2944 2945 /* If the VFI is already registered, there is nothing else to do 2946 * Unless this was a VFI update and we are in PT2PT mode, then 2947 * we should drop through to set the port state to ready. 2948 */ 2949 if (vport->fc_flag & FC_VFI_REGISTERED) 2950 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2951 vport->fc_flag & FC_PT2PT)) 2952 goto out_free_mem; 2953 2954 /* The VPI is implicitly registered when the VFI is registered */ 2955 spin_lock_irq(shost->host_lock); 2956 vport->vpi_state |= LPFC_VPI_REGISTERED; 2957 vport->fc_flag |= FC_VFI_REGISTERED; 2958 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2959 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2960 spin_unlock_irq(shost->host_lock); 2961 2962 /* In case SLI4 FC loopback test, we are ready */ 2963 if ((phba->sli_rev == LPFC_SLI_REV4) && 2964 (phba->link_flag & LS_LOOPBACK_MODE)) { 2965 phba->link_state = LPFC_HBA_READY; 2966 goto out_free_mem; 2967 } 2968 2969 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2970 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2971 "alpacnt:%d LinkState:%x topology:%x\n", 2972 vport->port_state, vport->fc_flag, vport->fc_myDID, 2973 vport->phba->alpa_map[0], 2974 phba->link_state, phba->fc_topology); 2975 2976 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2977 /* 2978 * For private loop or for NPort pt2pt, 2979 * just start discovery and we are done. 2980 */ 2981 if ((vport->fc_flag & FC_PT2PT) || 2982 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2983 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2984 2985 /* Use loop map to make discovery list */ 2986 lpfc_disc_list_loopmap(vport); 2987 /* Start discovery */ 2988 if (vport->fc_flag & FC_PT2PT) 2989 vport->port_state = LPFC_VPORT_READY; 2990 else 2991 lpfc_disc_start(vport); 2992 } else { 2993 lpfc_start_fdiscs(phba); 2994 lpfc_do_scr_ns_plogi(phba, vport); 2995 } 2996 } 2997 2998 out_free_mem: 2999 mempool_free(mboxq, phba->mbox_mem_pool); 3000 if (dmabuf) { 3001 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3002 kfree(dmabuf); 3003 } 3004 return; 3005 } 3006 3007 static void 3008 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3009 { 3010 MAILBOX_t *mb = &pmb->u.mb; 3011 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 3012 struct lpfc_vport *vport = pmb->vport; 3013 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3014 struct serv_parm *sp = &vport->fc_sparam; 3015 uint32_t ed_tov; 3016 3017 /* Check for error */ 3018 if (mb->mbxStatus) { 3019 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3020 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3021 "0319 READ_SPARAM mbxStatus error x%x " 3022 "hba state x%x>\n", 3023 mb->mbxStatus, vport->port_state); 3024 lpfc_linkdown(phba); 3025 goto out; 3026 } 3027 3028 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3029 sizeof (struct serv_parm)); 3030 3031 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3032 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3033 ed_tov = (ed_tov + 999999) / 1000000; 3034 3035 phba->fc_edtov = ed_tov; 3036 phba->fc_ratov = (2 * ed_tov) / 1000; 3037 if (phba->fc_ratov < FF_DEF_RATOV) { 3038 /* RA_TOV should be atleast 10sec for initial flogi */ 3039 phba->fc_ratov = FF_DEF_RATOV; 3040 } 3041 3042 lpfc_update_vport_wwn(vport); 3043 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3044 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3045 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3046 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3047 } 3048 3049 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3050 kfree(mp); 3051 mempool_free(pmb, phba->mbox_mem_pool); 3052 return; 3053 3054 out: 3055 pmb->context1 = NULL; 3056 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3057 kfree(mp); 3058 lpfc_issue_clear_la(phba, vport); 3059 mempool_free(pmb, phba->mbox_mem_pool); 3060 return; 3061 } 3062 3063 static void 3064 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3065 { 3066 struct lpfc_vport *vport = phba->pport; 3067 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3068 struct Scsi_Host *shost; 3069 int i; 3070 struct lpfc_dmabuf *mp; 3071 int rc; 3072 struct fcf_record *fcf_record; 3073 uint32_t fc_flags = 0; 3074 3075 spin_lock_irq(&phba->hbalock); 3076 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3077 3078 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3079 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3080 case LPFC_LINK_SPEED_1GHZ: 3081 case LPFC_LINK_SPEED_2GHZ: 3082 case LPFC_LINK_SPEED_4GHZ: 3083 case LPFC_LINK_SPEED_8GHZ: 3084 case LPFC_LINK_SPEED_10GHZ: 3085 case LPFC_LINK_SPEED_16GHZ: 3086 case LPFC_LINK_SPEED_32GHZ: 3087 case LPFC_LINK_SPEED_64GHZ: 3088 break; 3089 default: 3090 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3091 break; 3092 } 3093 } 3094 3095 if (phba->fc_topology && 3096 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3097 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3098 "3314 Toplogy changed was 0x%x is 0x%x\n", 3099 phba->fc_topology, 3100 bf_get(lpfc_mbx_read_top_topology, la)); 3101 phba->fc_topology_changed = 1; 3102 } 3103 3104 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3105 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3106 3107 shost = lpfc_shost_from_vport(vport); 3108 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3109 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3110 3111 /* if npiv is enabled and this adapter supports npiv log 3112 * a message that npiv is not supported in this topology 3113 */ 3114 if (phba->cfg_enable_npiv && phba->max_vpi) 3115 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3116 "1309 Link Up Event npiv not supported in loop " 3117 "topology\n"); 3118 /* Get Loop Map information */ 3119 if (bf_get(lpfc_mbx_read_top_il, la)) 3120 fc_flags |= FC_LBIT; 3121 3122 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3123 i = la->lilpBde64.tus.f.bdeSize; 3124 3125 if (i == 0) { 3126 phba->alpa_map[0] = 0; 3127 } else { 3128 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3129 int numalpa, j, k; 3130 union { 3131 uint8_t pamap[16]; 3132 struct { 3133 uint32_t wd1; 3134 uint32_t wd2; 3135 uint32_t wd3; 3136 uint32_t wd4; 3137 } pa; 3138 } un; 3139 numalpa = phba->alpa_map[0]; 3140 j = 0; 3141 while (j < numalpa) { 3142 memset(un.pamap, 0, 16); 3143 for (k = 1; j < numalpa; k++) { 3144 un.pamap[k - 1] = 3145 phba->alpa_map[j + 1]; 3146 j++; 3147 if (k == 16) 3148 break; 3149 } 3150 /* Link Up Event ALPA map */ 3151 lpfc_printf_log(phba, 3152 KERN_WARNING, 3153 LOG_LINK_EVENT, 3154 "1304 Link Up Event " 3155 "ALPA map Data: x%x " 3156 "x%x x%x x%x\n", 3157 un.pa.wd1, un.pa.wd2, 3158 un.pa.wd3, un.pa.wd4); 3159 } 3160 } 3161 } 3162 } else { 3163 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3164 if (phba->max_vpi && phba->cfg_enable_npiv && 3165 (phba->sli_rev >= LPFC_SLI_REV3)) 3166 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3167 } 3168 vport->fc_myDID = phba->fc_pref_DID; 3169 fc_flags |= FC_LBIT; 3170 } 3171 spin_unlock_irq(&phba->hbalock); 3172 3173 if (fc_flags) { 3174 spin_lock_irq(shost->host_lock); 3175 vport->fc_flag |= fc_flags; 3176 spin_unlock_irq(shost->host_lock); 3177 } 3178 3179 lpfc_linkup(phba); 3180 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3181 if (!sparam_mbox) 3182 goto out; 3183 3184 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3185 if (rc) { 3186 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3187 goto out; 3188 } 3189 sparam_mbox->vport = vport; 3190 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3191 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3192 if (rc == MBX_NOT_FINISHED) { 3193 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3194 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3195 kfree(mp); 3196 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3197 goto out; 3198 } 3199 3200 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3201 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3202 if (!cfglink_mbox) 3203 goto out; 3204 vport->port_state = LPFC_LOCAL_CFG_LINK; 3205 lpfc_config_link(phba, cfglink_mbox); 3206 cfglink_mbox->vport = vport; 3207 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3208 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3209 if (rc == MBX_NOT_FINISHED) { 3210 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3211 goto out; 3212 } 3213 } else { 3214 vport->port_state = LPFC_VPORT_UNKNOWN; 3215 /* 3216 * Add the driver's default FCF record at FCF index 0 now. This 3217 * is phase 1 implementation that support FCF index 0 and driver 3218 * defaults. 3219 */ 3220 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3221 fcf_record = kzalloc(sizeof(struct fcf_record), 3222 GFP_KERNEL); 3223 if (unlikely(!fcf_record)) { 3224 lpfc_printf_log(phba, KERN_ERR, 3225 LOG_MBOX | LOG_SLI, 3226 "2554 Could not allocate memory for " 3227 "fcf record\n"); 3228 rc = -ENODEV; 3229 goto out; 3230 } 3231 3232 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3233 LPFC_FCOE_FCF_DEF_INDEX); 3234 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3235 if (unlikely(rc)) { 3236 lpfc_printf_log(phba, KERN_ERR, 3237 LOG_MBOX | LOG_SLI, 3238 "2013 Could not manually add FCF " 3239 "record 0, status %d\n", rc); 3240 rc = -ENODEV; 3241 kfree(fcf_record); 3242 goto out; 3243 } 3244 kfree(fcf_record); 3245 } 3246 /* 3247 * The driver is expected to do FIP/FCF. Call the port 3248 * and get the FCF Table. 3249 */ 3250 spin_lock_irq(&phba->hbalock); 3251 if (phba->hba_flag & FCF_TS_INPROG) { 3252 spin_unlock_irq(&phba->hbalock); 3253 return; 3254 } 3255 /* This is the initial FCF discovery scan */ 3256 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3257 spin_unlock_irq(&phba->hbalock); 3258 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3259 "2778 Start FCF table scan at linkup\n"); 3260 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3261 LPFC_FCOE_FCF_GET_FIRST); 3262 if (rc) { 3263 spin_lock_irq(&phba->hbalock); 3264 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3265 spin_unlock_irq(&phba->hbalock); 3266 goto out; 3267 } 3268 /* Reset FCF roundrobin bmask for new discovery */ 3269 lpfc_sli4_clear_fcf_rr_bmask(phba); 3270 } 3271 3272 return; 3273 out: 3274 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3275 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3276 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3277 vport->port_state, sparam_mbox, cfglink_mbox); 3278 lpfc_issue_clear_la(phba, vport); 3279 return; 3280 } 3281 3282 static void 3283 lpfc_enable_la(struct lpfc_hba *phba) 3284 { 3285 uint32_t control; 3286 struct lpfc_sli *psli = &phba->sli; 3287 spin_lock_irq(&phba->hbalock); 3288 psli->sli_flag |= LPFC_PROCESS_LA; 3289 if (phba->sli_rev <= LPFC_SLI_REV3) { 3290 control = readl(phba->HCregaddr); 3291 control |= HC_LAINT_ENA; 3292 writel(control, phba->HCregaddr); 3293 readl(phba->HCregaddr); /* flush */ 3294 } 3295 spin_unlock_irq(&phba->hbalock); 3296 } 3297 3298 static void 3299 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3300 { 3301 lpfc_linkdown(phba); 3302 lpfc_enable_la(phba); 3303 lpfc_unregister_unused_fcf(phba); 3304 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3305 } 3306 3307 3308 /* 3309 * This routine handles processing a READ_TOPOLOGY mailbox 3310 * command upon completion. It is setup in the LPFC_MBOXQ 3311 * as the completion routine when the command is 3312 * handed off to the SLI layer. SLI4 only. 3313 */ 3314 void 3315 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3316 { 3317 struct lpfc_vport *vport = pmb->vport; 3318 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3319 struct lpfc_mbx_read_top *la; 3320 struct lpfc_sli_ring *pring; 3321 MAILBOX_t *mb = &pmb->u.mb; 3322 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3323 uint8_t attn_type; 3324 3325 /* Unblock ELS traffic */ 3326 pring = lpfc_phba_elsring(phba); 3327 if (pring) 3328 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3329 3330 /* Check for error */ 3331 if (mb->mbxStatus) { 3332 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3333 "1307 READ_LA mbox error x%x state x%x\n", 3334 mb->mbxStatus, vport->port_state); 3335 lpfc_mbx_issue_link_down(phba); 3336 phba->link_state = LPFC_HBA_ERROR; 3337 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3338 } 3339 3340 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3341 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3342 3343 memcpy(&phba->alpa_map[0], mp->virt, 128); 3344 3345 spin_lock_irq(shost->host_lock); 3346 if (bf_get(lpfc_mbx_read_top_pb, la)) 3347 vport->fc_flag |= FC_BYPASSED_MODE; 3348 else 3349 vport->fc_flag &= ~FC_BYPASSED_MODE; 3350 spin_unlock_irq(shost->host_lock); 3351 3352 if (phba->fc_eventTag <= la->eventTag) { 3353 phba->fc_stat.LinkMultiEvent++; 3354 if (attn_type == LPFC_ATT_LINK_UP) 3355 if (phba->fc_eventTag != 0) 3356 lpfc_linkdown(phba); 3357 } 3358 3359 phba->fc_eventTag = la->eventTag; 3360 if (phba->sli_rev < LPFC_SLI_REV4) { 3361 spin_lock_irq(&phba->hbalock); 3362 if (bf_get(lpfc_mbx_read_top_mm, la)) 3363 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3364 else 3365 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3366 spin_unlock_irq(&phba->hbalock); 3367 } 3368 3369 phba->link_events++; 3370 if ((attn_type == LPFC_ATT_LINK_UP) && 3371 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3372 phba->fc_stat.LinkUp++; 3373 if (phba->link_flag & LS_LOOPBACK_MODE) { 3374 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3375 "1306 Link Up Event in loop back mode " 3376 "x%x received Data: x%x x%x x%x x%x\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 } else { 3383 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3384 "1303 Link Up Event x%x received " 3385 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3386 la->eventTag, phba->fc_eventTag, 3387 bf_get(lpfc_mbx_read_top_alpa_granted, 3388 la), 3389 bf_get(lpfc_mbx_read_top_link_spd, la), 3390 phba->alpa_map[0], 3391 bf_get(lpfc_mbx_read_top_mm, la), 3392 bf_get(lpfc_mbx_read_top_fa, la), 3393 phba->wait_4_mlo_maint_flg); 3394 } 3395 lpfc_mbx_process_link_up(phba, la); 3396 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3397 attn_type == LPFC_ATT_UNEXP_WWPN) { 3398 phba->fc_stat.LinkDown++; 3399 if (phba->link_flag & LS_LOOPBACK_MODE) 3400 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3401 "1308 Link Down Event in loop back mode " 3402 "x%x received " 3403 "Data: x%x x%x x%x\n", 3404 la->eventTag, phba->fc_eventTag, 3405 phba->pport->port_state, vport->fc_flag); 3406 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3407 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3408 "1313 Link Down UNEXP WWPN Event x%x received " 3409 "Data: x%x x%x x%x x%x x%x\n", 3410 la->eventTag, phba->fc_eventTag, 3411 phba->pport->port_state, vport->fc_flag, 3412 bf_get(lpfc_mbx_read_top_mm, la), 3413 bf_get(lpfc_mbx_read_top_fa, la)); 3414 else 3415 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3416 "1305 Link Down Event x%x received " 3417 "Data: x%x x%x x%x x%x x%x\n", 3418 la->eventTag, phba->fc_eventTag, 3419 phba->pport->port_state, vport->fc_flag, 3420 bf_get(lpfc_mbx_read_top_mm, la), 3421 bf_get(lpfc_mbx_read_top_fa, la)); 3422 lpfc_mbx_issue_link_down(phba); 3423 } 3424 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3425 attn_type == LPFC_ATT_LINK_UP) { 3426 if (phba->link_state != LPFC_LINK_DOWN) { 3427 phba->fc_stat.LinkDown++; 3428 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3429 "1312 Link Down Event x%x received " 3430 "Data: x%x x%x x%x\n", 3431 la->eventTag, phba->fc_eventTag, 3432 phba->pport->port_state, vport->fc_flag); 3433 lpfc_mbx_issue_link_down(phba); 3434 } else 3435 lpfc_enable_la(phba); 3436 3437 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3438 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3439 "Data: x%x x%x x%x\n", 3440 la->eventTag, phba->fc_eventTag, 3441 phba->pport->port_state, vport->fc_flag); 3442 /* 3443 * The cmnd that triggered this will be waiting for this 3444 * signal. 3445 */ 3446 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3447 if (phba->wait_4_mlo_maint_flg) { 3448 phba->wait_4_mlo_maint_flg = 0; 3449 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3450 } 3451 } 3452 3453 if ((phba->sli_rev < LPFC_SLI_REV4) && 3454 bf_get(lpfc_mbx_read_top_fa, la)) { 3455 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3456 lpfc_issue_clear_la(phba, vport); 3457 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3458 "1311 fa %d\n", 3459 bf_get(lpfc_mbx_read_top_fa, la)); 3460 } 3461 3462 lpfc_mbx_cmpl_read_topology_free_mbuf: 3463 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3464 kfree(mp); 3465 mempool_free(pmb, phba->mbox_mem_pool); 3466 return; 3467 } 3468 3469 /* 3470 * This routine handles processing a REG_LOGIN mailbox 3471 * command upon completion. It is setup in the LPFC_MBOXQ 3472 * as the completion routine when the command is 3473 * handed off to the SLI layer. 3474 */ 3475 void 3476 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3477 { 3478 struct lpfc_vport *vport = pmb->vport; 3479 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3480 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3481 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3482 3483 pmb->context1 = NULL; 3484 pmb->context2 = NULL; 3485 3486 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3487 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3488 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3489 kref_read(&ndlp->kref), 3490 ndlp->nlp_usg_map, ndlp); 3491 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3492 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3493 3494 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3495 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3496 /* We rcvd a rscn after issuing this 3497 * mbox reg login, we may have cycled 3498 * back through the state and be 3499 * back at reg login state so this 3500 * mbox needs to be ignored becase 3501 * there is another reg login in 3502 * process. 3503 */ 3504 spin_lock_irq(shost->host_lock); 3505 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3506 spin_unlock_irq(shost->host_lock); 3507 3508 /* 3509 * We cannot leave the RPI registered because 3510 * if we go thru discovery again for this ndlp 3511 * a subsequent REG_RPI will fail. 3512 */ 3513 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3514 lpfc_unreg_rpi(vport, ndlp); 3515 } 3516 3517 /* Call state machine */ 3518 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3519 3520 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3521 kfree(mp); 3522 mempool_free(pmb, phba->mbox_mem_pool); 3523 /* decrement the node reference count held for this callback 3524 * function. 3525 */ 3526 lpfc_nlp_put(ndlp); 3527 3528 return; 3529 } 3530 3531 static void 3532 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3533 { 3534 MAILBOX_t *mb = &pmb->u.mb; 3535 struct lpfc_vport *vport = pmb->vport; 3536 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3537 3538 switch (mb->mbxStatus) { 3539 case 0x0011: 3540 case 0x0020: 3541 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3542 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3543 mb->mbxStatus); 3544 break; 3545 /* If VPI is busy, reset the HBA */ 3546 case 0x9700: 3547 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3548 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3549 vport->vpi, mb->mbxStatus); 3550 if (!(phba->pport->load_flag & FC_UNLOADING)) 3551 lpfc_workq_post_event(phba, NULL, NULL, 3552 LPFC_EVT_RESET_HBA); 3553 } 3554 spin_lock_irq(shost->host_lock); 3555 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3556 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3557 spin_unlock_irq(shost->host_lock); 3558 vport->unreg_vpi_cmpl = VPORT_OK; 3559 mempool_free(pmb, phba->mbox_mem_pool); 3560 lpfc_cleanup_vports_rrqs(vport, NULL); 3561 /* 3562 * This shost reference might have been taken at the beginning of 3563 * lpfc_vport_delete() 3564 */ 3565 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3566 scsi_host_put(shost); 3567 } 3568 3569 int 3570 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3571 { 3572 struct lpfc_hba *phba = vport->phba; 3573 LPFC_MBOXQ_t *mbox; 3574 int rc; 3575 3576 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3577 if (!mbox) 3578 return 1; 3579 3580 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3581 mbox->vport = vport; 3582 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3583 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3584 if (rc == MBX_NOT_FINISHED) { 3585 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3586 "1800 Could not issue unreg_vpi\n"); 3587 mempool_free(mbox, phba->mbox_mem_pool); 3588 vport->unreg_vpi_cmpl = VPORT_ERROR; 3589 return rc; 3590 } 3591 return 0; 3592 } 3593 3594 static void 3595 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3596 { 3597 struct lpfc_vport *vport = pmb->vport; 3598 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3599 MAILBOX_t *mb = &pmb->u.mb; 3600 3601 switch (mb->mbxStatus) { 3602 case 0x0011: 3603 case 0x9601: 3604 case 0x9602: 3605 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3606 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3607 mb->mbxStatus); 3608 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3609 spin_lock_irq(shost->host_lock); 3610 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3611 spin_unlock_irq(shost->host_lock); 3612 vport->fc_myDID = 0; 3613 3614 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3615 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3616 if (phba->nvmet_support) 3617 lpfc_nvmet_update_targetport(phba); 3618 else 3619 lpfc_nvme_update_localport(vport); 3620 } 3621 goto out; 3622 } 3623 3624 spin_lock_irq(shost->host_lock); 3625 vport->vpi_state |= LPFC_VPI_REGISTERED; 3626 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3627 spin_unlock_irq(shost->host_lock); 3628 vport->num_disc_nodes = 0; 3629 /* go thru NPR list and issue ELS PLOGIs */ 3630 if (vport->fc_npr_cnt) 3631 lpfc_els_disc_plogi(vport); 3632 3633 if (!vport->num_disc_nodes) { 3634 spin_lock_irq(shost->host_lock); 3635 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3636 spin_unlock_irq(shost->host_lock); 3637 lpfc_can_disctmo(vport); 3638 } 3639 vport->port_state = LPFC_VPORT_READY; 3640 3641 out: 3642 mempool_free(pmb, phba->mbox_mem_pool); 3643 return; 3644 } 3645 3646 /** 3647 * lpfc_create_static_vport - Read HBA config region to create static vports. 3648 * @phba: pointer to lpfc hba data structure. 3649 * 3650 * This routine issue a DUMP mailbox command for config region 22 to get 3651 * the list of static vports to be created. The function create vports 3652 * based on the information returned from the HBA. 3653 **/ 3654 void 3655 lpfc_create_static_vport(struct lpfc_hba *phba) 3656 { 3657 LPFC_MBOXQ_t *pmb = NULL; 3658 MAILBOX_t *mb; 3659 struct static_vport_info *vport_info; 3660 int mbx_wait_rc = 0, i; 3661 struct fc_vport_identifiers vport_id; 3662 struct fc_vport *new_fc_vport; 3663 struct Scsi_Host *shost; 3664 struct lpfc_vport *vport; 3665 uint16_t offset = 0; 3666 uint8_t *vport_buff; 3667 struct lpfc_dmabuf *mp; 3668 uint32_t byte_count = 0; 3669 3670 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3671 if (!pmb) { 3672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3673 "0542 lpfc_create_static_vport failed to" 3674 " allocate mailbox memory\n"); 3675 return; 3676 } 3677 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3678 mb = &pmb->u.mb; 3679 3680 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3681 if (!vport_info) { 3682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3683 "0543 lpfc_create_static_vport failed to" 3684 " allocate vport_info\n"); 3685 mempool_free(pmb, phba->mbox_mem_pool); 3686 return; 3687 } 3688 3689 vport_buff = (uint8_t *) vport_info; 3690 do { 3691 /* free dma buffer from previous round */ 3692 if (pmb->context1) { 3693 mp = (struct lpfc_dmabuf *)pmb->context1; 3694 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3695 kfree(mp); 3696 } 3697 if (lpfc_dump_static_vport(phba, pmb, offset)) 3698 goto out; 3699 3700 pmb->vport = phba->pport; 3701 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3702 LPFC_MBOX_TMO); 3703 3704 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3705 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3706 "0544 lpfc_create_static_vport failed to" 3707 " issue dump mailbox command ret 0x%x " 3708 "status 0x%x\n", 3709 mbx_wait_rc, mb->mbxStatus); 3710 goto out; 3711 } 3712 3713 if (phba->sli_rev == LPFC_SLI_REV4) { 3714 byte_count = pmb->u.mqe.un.mb_words[5]; 3715 mp = (struct lpfc_dmabuf *)pmb->context1; 3716 if (byte_count > sizeof(struct static_vport_info) - 3717 offset) 3718 byte_count = sizeof(struct static_vport_info) 3719 - offset; 3720 memcpy(vport_buff + offset, mp->virt, byte_count); 3721 offset += byte_count; 3722 } else { 3723 if (mb->un.varDmp.word_cnt > 3724 sizeof(struct static_vport_info) - offset) 3725 mb->un.varDmp.word_cnt = 3726 sizeof(struct static_vport_info) 3727 - offset; 3728 byte_count = mb->un.varDmp.word_cnt; 3729 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3730 vport_buff + offset, 3731 byte_count); 3732 3733 offset += byte_count; 3734 } 3735 3736 } while (byte_count && 3737 offset < sizeof(struct static_vport_info)); 3738 3739 3740 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3741 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3742 != VPORT_INFO_REV)) { 3743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3744 "0545 lpfc_create_static_vport bad" 3745 " information header 0x%x 0x%x\n", 3746 le32_to_cpu(vport_info->signature), 3747 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3748 3749 goto out; 3750 } 3751 3752 shost = lpfc_shost_from_vport(phba->pport); 3753 3754 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3755 memset(&vport_id, 0, sizeof(vport_id)); 3756 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3757 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3758 if (!vport_id.port_name || !vport_id.node_name) 3759 continue; 3760 3761 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3762 vport_id.vport_type = FC_PORTTYPE_NPIV; 3763 vport_id.disable = false; 3764 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3765 3766 if (!new_fc_vport) { 3767 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3768 "0546 lpfc_create_static_vport failed to" 3769 " create vport\n"); 3770 continue; 3771 } 3772 3773 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3774 vport->vport_flag |= STATIC_VPORT; 3775 } 3776 3777 out: 3778 kfree(vport_info); 3779 if (mbx_wait_rc != MBX_TIMEOUT) { 3780 if (pmb->context1) { 3781 mp = (struct lpfc_dmabuf *)pmb->context1; 3782 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3783 kfree(mp); 3784 } 3785 mempool_free(pmb, phba->mbox_mem_pool); 3786 } 3787 3788 return; 3789 } 3790 3791 /* 3792 * This routine handles processing a Fabric REG_LOGIN mailbox 3793 * command upon completion. It is setup in the LPFC_MBOXQ 3794 * as the completion routine when the command is 3795 * handed off to the SLI layer. 3796 */ 3797 void 3798 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3799 { 3800 struct lpfc_vport *vport = pmb->vport; 3801 MAILBOX_t *mb = &pmb->u.mb; 3802 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3803 struct lpfc_nodelist *ndlp; 3804 struct Scsi_Host *shost; 3805 3806 ndlp = (struct lpfc_nodelist *) pmb->context2; 3807 pmb->context1 = NULL; 3808 pmb->context2 = NULL; 3809 3810 if (mb->mbxStatus) { 3811 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3812 "0258 Register Fabric login error: 0x%x\n", 3813 mb->mbxStatus); 3814 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3815 kfree(mp); 3816 mempool_free(pmb, phba->mbox_mem_pool); 3817 3818 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3819 /* FLOGI failed, use loop map to make discovery list */ 3820 lpfc_disc_list_loopmap(vport); 3821 3822 /* Start discovery */ 3823 lpfc_disc_start(vport); 3824 /* Decrement the reference count to ndlp after the 3825 * reference to the ndlp are done. 3826 */ 3827 lpfc_nlp_put(ndlp); 3828 return; 3829 } 3830 3831 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3832 /* Decrement the reference count to ndlp after the reference 3833 * to the ndlp are done. 3834 */ 3835 lpfc_nlp_put(ndlp); 3836 return; 3837 } 3838 3839 if (phba->sli_rev < LPFC_SLI_REV4) 3840 ndlp->nlp_rpi = mb->un.varWords[0]; 3841 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3842 ndlp->nlp_type |= NLP_FABRIC; 3843 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3844 3845 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3846 /* when physical port receive logo donot start 3847 * vport discovery */ 3848 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3849 lpfc_start_fdiscs(phba); 3850 else { 3851 shost = lpfc_shost_from_vport(vport); 3852 spin_lock_irq(shost->host_lock); 3853 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3854 spin_unlock_irq(shost->host_lock); 3855 } 3856 lpfc_do_scr_ns_plogi(phba, vport); 3857 } 3858 3859 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3860 kfree(mp); 3861 mempool_free(pmb, phba->mbox_mem_pool); 3862 3863 /* Drop the reference count from the mbox at the end after 3864 * all the current reference to the ndlp have been done. 3865 */ 3866 lpfc_nlp_put(ndlp); 3867 return; 3868 } 3869 3870 /* 3871 * This routine will issue a GID_FT for each FC4 Type supported 3872 * by the driver. ALL GID_FTs must complete before discovery is started. 3873 */ 3874 int 3875 lpfc_issue_gidft(struct lpfc_vport *vport) 3876 { 3877 struct lpfc_hba *phba = vport->phba; 3878 3879 /* Good status, issue CT Request to NameServer */ 3880 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3881 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3882 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3883 /* Cannot issue NameServer FCP Query, so finish up 3884 * discovery 3885 */ 3886 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3887 "0604 %s FC TYPE %x %s\n", 3888 "Failed to issue GID_FT to ", 3889 FC_TYPE_FCP, 3890 "Finishing discovery."); 3891 return 0; 3892 } 3893 vport->gidft_inp++; 3894 } 3895 3896 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3897 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3898 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3899 /* Cannot issue NameServer NVME Query, so finish up 3900 * discovery 3901 */ 3902 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3903 "0605 %s FC_TYPE %x %s %d\n", 3904 "Failed to issue GID_FT to ", 3905 FC_TYPE_NVME, 3906 "Finishing discovery: gidftinp ", 3907 vport->gidft_inp); 3908 if (vport->gidft_inp == 0) 3909 return 0; 3910 } else 3911 vport->gidft_inp++; 3912 } 3913 return vport->gidft_inp; 3914 } 3915 3916 /* 3917 * This routine handles processing a NameServer REG_LOGIN mailbox 3918 * command upon completion. It is setup in the LPFC_MBOXQ 3919 * as the completion routine when the command is 3920 * handed off to the SLI layer. 3921 */ 3922 void 3923 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3924 { 3925 MAILBOX_t *mb = &pmb->u.mb; 3926 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3927 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3928 struct lpfc_vport *vport = pmb->vport; 3929 3930 pmb->context1 = NULL; 3931 pmb->context2 = NULL; 3932 vport->gidft_inp = 0; 3933 3934 if (mb->mbxStatus) { 3935 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3936 "0260 Register NameServer error: 0x%x\n", 3937 mb->mbxStatus); 3938 3939 out: 3940 /* decrement the node reference count held for this 3941 * callback function. 3942 */ 3943 lpfc_nlp_put(ndlp); 3944 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3945 kfree(mp); 3946 mempool_free(pmb, phba->mbox_mem_pool); 3947 3948 /* If no other thread is using the ndlp, free it */ 3949 lpfc_nlp_not_used(ndlp); 3950 3951 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3952 /* 3953 * RegLogin failed, use loop map to make discovery 3954 * list 3955 */ 3956 lpfc_disc_list_loopmap(vport); 3957 3958 /* Start discovery */ 3959 lpfc_disc_start(vport); 3960 return; 3961 } 3962 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3963 return; 3964 } 3965 3966 if (phba->sli_rev < LPFC_SLI_REV4) 3967 ndlp->nlp_rpi = mb->un.varWords[0]; 3968 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3969 ndlp->nlp_type |= NLP_FABRIC; 3970 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3971 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3972 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3973 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3974 kref_read(&ndlp->kref), 3975 ndlp->nlp_usg_map, ndlp); 3976 3977 if (vport->port_state < LPFC_VPORT_READY) { 3978 /* Link up discovery requires Fabric registration. */ 3979 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3980 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3981 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3982 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3983 3984 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3985 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 3986 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 3987 3988 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3989 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 3990 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 3991 FC_TYPE_NVME); 3992 3993 /* Issue SCR just before NameServer GID_FT Query */ 3994 lpfc_issue_els_scr(vport, SCR_DID, 0); 3995 } 3996 3997 vport->fc_ns_retry = 0; 3998 if (lpfc_issue_gidft(vport) == 0) 3999 goto out; 4000 4001 /* 4002 * At this point in time we may need to wait for multiple 4003 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4004 * 4005 * decrement the node reference count held for this 4006 * callback function. 4007 */ 4008 lpfc_nlp_put(ndlp); 4009 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4010 kfree(mp); 4011 mempool_free(pmb, phba->mbox_mem_pool); 4012 4013 return; 4014 } 4015 4016 static void 4017 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4018 { 4019 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4020 struct fc_rport *rport; 4021 struct lpfc_rport_data *rdata; 4022 struct fc_rport_identifiers rport_ids; 4023 struct lpfc_hba *phba = vport->phba; 4024 4025 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4026 return; 4027 4028 /* Remote port has reappeared. Re-register w/ FC transport */ 4029 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4030 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4031 rport_ids.port_id = ndlp->nlp_DID; 4032 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4033 4034 /* 4035 * We leave our node pointer in rport->dd_data when we unregister a 4036 * FCP target port. But fc_remote_port_add zeros the space to which 4037 * rport->dd_data points. So, if we're reusing a previously 4038 * registered port, drop the reference that we took the last time we 4039 * registered the port. 4040 */ 4041 rport = ndlp->rport; 4042 if (rport) { 4043 rdata = rport->dd_data; 4044 /* break the link before dropping the ref */ 4045 ndlp->rport = NULL; 4046 if (rdata) { 4047 if (rdata->pnode == ndlp) 4048 lpfc_nlp_put(ndlp); 4049 rdata->pnode = NULL; 4050 } 4051 /* drop reference for earlier registeration */ 4052 put_device(&rport->dev); 4053 } 4054 4055 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4056 "rport add: did:x%x flg:x%x type x%x", 4057 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4058 4059 /* Don't add the remote port if unloading. */ 4060 if (vport->load_flag & FC_UNLOADING) 4061 return; 4062 4063 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4064 if (!rport || !get_device(&rport->dev)) { 4065 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4066 "Warning: fc_remote_port_add failed\n"); 4067 return; 4068 } 4069 4070 /* initialize static port data */ 4071 rport->maxframe_size = ndlp->nlp_maxframe; 4072 rport->supported_classes = ndlp->nlp_class_sup; 4073 rdata = rport->dd_data; 4074 rdata->pnode = lpfc_nlp_get(ndlp); 4075 4076 if (ndlp->nlp_type & NLP_FCP_TARGET) 4077 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4078 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4079 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4080 4081 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4082 fc_remote_port_rolechg(rport, rport_ids.roles); 4083 4084 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4085 "3183 rport register x%06x, rport %p role x%x\n", 4086 ndlp->nlp_DID, rport, rport_ids.roles); 4087 4088 if ((rport->scsi_target_id != -1) && 4089 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4090 ndlp->nlp_sid = rport->scsi_target_id; 4091 } 4092 return; 4093 } 4094 4095 static void 4096 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4097 { 4098 struct fc_rport *rport = ndlp->rport; 4099 struct lpfc_vport *vport = ndlp->vport; 4100 struct lpfc_hba *phba = vport->phba; 4101 4102 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4103 return; 4104 4105 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4106 "rport delete: did:x%x flg:x%x type x%x", 4107 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4108 4109 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4110 "3184 rport unregister x%06x, rport %p\n", 4111 ndlp->nlp_DID, rport); 4112 4113 fc_remote_port_delete(rport); 4114 4115 return; 4116 } 4117 4118 static void 4119 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4120 { 4121 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4122 4123 spin_lock_irq(shost->host_lock); 4124 switch (state) { 4125 case NLP_STE_UNUSED_NODE: 4126 vport->fc_unused_cnt += count; 4127 break; 4128 case NLP_STE_PLOGI_ISSUE: 4129 vport->fc_plogi_cnt += count; 4130 break; 4131 case NLP_STE_ADISC_ISSUE: 4132 vport->fc_adisc_cnt += count; 4133 break; 4134 case NLP_STE_REG_LOGIN_ISSUE: 4135 vport->fc_reglogin_cnt += count; 4136 break; 4137 case NLP_STE_PRLI_ISSUE: 4138 vport->fc_prli_cnt += count; 4139 break; 4140 case NLP_STE_UNMAPPED_NODE: 4141 vport->fc_unmap_cnt += count; 4142 break; 4143 case NLP_STE_MAPPED_NODE: 4144 vport->fc_map_cnt += count; 4145 break; 4146 case NLP_STE_NPR_NODE: 4147 if (vport->fc_npr_cnt == 0 && count == -1) 4148 vport->fc_npr_cnt = 0; 4149 else 4150 vport->fc_npr_cnt += count; 4151 break; 4152 } 4153 spin_unlock_irq(shost->host_lock); 4154 } 4155 4156 static void 4157 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4158 int old_state, int new_state) 4159 { 4160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4161 4162 if (new_state == NLP_STE_UNMAPPED_NODE) { 4163 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4164 ndlp->nlp_type |= NLP_FC_NODE; 4165 } 4166 if (new_state == NLP_STE_MAPPED_NODE) 4167 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4168 if (new_state == NLP_STE_NPR_NODE) 4169 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4170 4171 /* FCP and NVME Transport interface */ 4172 if ((old_state == NLP_STE_MAPPED_NODE || 4173 old_state == NLP_STE_UNMAPPED_NODE)) { 4174 if (ndlp->rport) { 4175 vport->phba->nport_event_cnt++; 4176 lpfc_unregister_remote_port(ndlp); 4177 } 4178 4179 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4180 vport->phba->nport_event_cnt++; 4181 if (vport->phba->nvmet_support == 0) { 4182 /* Start devloss if target. */ 4183 if (ndlp->nlp_type & NLP_NVME_TARGET) 4184 lpfc_nvme_unregister_port(vport, ndlp); 4185 } else { 4186 /* NVMET has no upcall. */ 4187 lpfc_nlp_put(ndlp); 4188 } 4189 } 4190 } 4191 4192 /* FCP and NVME Transport interfaces */ 4193 4194 if (new_state == NLP_STE_MAPPED_NODE || 4195 new_state == NLP_STE_UNMAPPED_NODE) { 4196 if (ndlp->nlp_fc4_type || 4197 ndlp->nlp_DID == Fabric_DID || 4198 ndlp->nlp_DID == NameServer_DID || 4199 ndlp->nlp_DID == FDMI_DID) { 4200 vport->phba->nport_event_cnt++; 4201 /* 4202 * Tell the fc transport about the port, if we haven't 4203 * already. If we have, and it's a scsi entity, be 4204 */ 4205 lpfc_register_remote_port(vport, ndlp); 4206 } 4207 /* Notify the NVME transport of this new rport. */ 4208 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4209 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4210 if (vport->phba->nvmet_support == 0) { 4211 /* Register this rport with the transport. 4212 * Only NVME Target Rports are registered with 4213 * the transport. 4214 */ 4215 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4216 vport->phba->nport_event_cnt++; 4217 lpfc_nvme_register_port(vport, ndlp); 4218 } 4219 } else { 4220 /* Just take an NDLP ref count since the 4221 * target does not register rports. 4222 */ 4223 lpfc_nlp_get(ndlp); 4224 } 4225 } 4226 } 4227 4228 if ((new_state == NLP_STE_MAPPED_NODE) && 4229 (vport->stat_data_enabled)) { 4230 /* 4231 * A new target is discovered, if there is no buffer for 4232 * statistical data collection allocate buffer. 4233 */ 4234 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4235 sizeof(struct lpfc_scsicmd_bkt), 4236 GFP_KERNEL); 4237 4238 if (!ndlp->lat_data) 4239 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4240 "0286 lpfc_nlp_state_cleanup failed to " 4241 "allocate statistical data buffer DID " 4242 "0x%x\n", ndlp->nlp_DID); 4243 } 4244 /* 4245 * If the node just added to Mapped list was an FCP target, 4246 * but the remote port registration failed or assigned a target 4247 * id outside the presentable range - move the node to the 4248 * Unmapped List. 4249 */ 4250 if ((new_state == NLP_STE_MAPPED_NODE) && 4251 (ndlp->nlp_type & NLP_FCP_TARGET) && 4252 (!ndlp->rport || 4253 ndlp->rport->scsi_target_id == -1 || 4254 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4255 spin_lock_irq(shost->host_lock); 4256 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4257 spin_unlock_irq(shost->host_lock); 4258 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4259 } 4260 } 4261 4262 static char * 4263 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4264 { 4265 static char *states[] = { 4266 [NLP_STE_UNUSED_NODE] = "UNUSED", 4267 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4268 [NLP_STE_ADISC_ISSUE] = "ADISC", 4269 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4270 [NLP_STE_PRLI_ISSUE] = "PRLI", 4271 [NLP_STE_LOGO_ISSUE] = "LOGO", 4272 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4273 [NLP_STE_MAPPED_NODE] = "MAPPED", 4274 [NLP_STE_NPR_NODE] = "NPR", 4275 }; 4276 4277 if (state < NLP_STE_MAX_STATE && states[state]) 4278 strlcpy(buffer, states[state], size); 4279 else 4280 snprintf(buffer, size, "unknown (%d)", state); 4281 return buffer; 4282 } 4283 4284 void 4285 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4286 int state) 4287 { 4288 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4289 int old_state = ndlp->nlp_state; 4290 char name1[16], name2[16]; 4291 4292 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4293 "0904 NPort state transition x%06x, %s -> %s\n", 4294 ndlp->nlp_DID, 4295 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4296 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4297 4298 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4299 "node statechg did:x%x old:%d ste:%d", 4300 ndlp->nlp_DID, old_state, state); 4301 4302 if (old_state == NLP_STE_NPR_NODE && 4303 state != NLP_STE_NPR_NODE) 4304 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4305 if (old_state == NLP_STE_UNMAPPED_NODE) { 4306 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4307 ndlp->nlp_type &= ~NLP_FC_NODE; 4308 } 4309 4310 if (list_empty(&ndlp->nlp_listp)) { 4311 spin_lock_irq(shost->host_lock); 4312 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4313 spin_unlock_irq(shost->host_lock); 4314 } else if (old_state) 4315 lpfc_nlp_counters(vport, old_state, -1); 4316 4317 ndlp->nlp_state = state; 4318 lpfc_nlp_counters(vport, state, 1); 4319 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4320 } 4321 4322 void 4323 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4324 { 4325 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4326 4327 if (list_empty(&ndlp->nlp_listp)) { 4328 spin_lock_irq(shost->host_lock); 4329 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4330 spin_unlock_irq(shost->host_lock); 4331 } 4332 } 4333 4334 void 4335 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4336 { 4337 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4338 4339 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4340 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4341 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4342 spin_lock_irq(shost->host_lock); 4343 list_del_init(&ndlp->nlp_listp); 4344 spin_unlock_irq(shost->host_lock); 4345 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4346 NLP_STE_UNUSED_NODE); 4347 } 4348 4349 static void 4350 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4351 { 4352 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4353 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4354 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4355 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4356 NLP_STE_UNUSED_NODE); 4357 } 4358 /** 4359 * lpfc_initialize_node - Initialize all fields of node object 4360 * @vport: Pointer to Virtual Port object. 4361 * @ndlp: Pointer to FC node object. 4362 * @did: FC_ID of the node. 4363 * 4364 * This function is always called when node object need to be initialized. 4365 * It initializes all the fields of the node object. Although the reference 4366 * to phba from @ndlp can be obtained indirectly through it's reference to 4367 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4368 * to the life-span of the @ndlp might go beyond the existence of @vport as 4369 * the final release of ndlp is determined by its reference count. And, the 4370 * operation on @ndlp needs the reference to phba. 4371 **/ 4372 static inline void 4373 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4374 uint32_t did) 4375 { 4376 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4377 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4378 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4379 ndlp->nlp_DID = did; 4380 ndlp->vport = vport; 4381 ndlp->phba = vport->phba; 4382 ndlp->nlp_sid = NLP_NO_SID; 4383 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4384 kref_init(&ndlp->kref); 4385 NLP_INT_NODE_ACT(ndlp); 4386 atomic_set(&ndlp->cmd_pending, 0); 4387 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4388 } 4389 4390 struct lpfc_nodelist * 4391 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4392 int state) 4393 { 4394 struct lpfc_hba *phba = vport->phba; 4395 uint32_t did; 4396 unsigned long flags; 4397 unsigned long *active_rrqs_xri_bitmap = NULL; 4398 int rpi = LPFC_RPI_ALLOC_ERROR; 4399 4400 if (!ndlp) 4401 return NULL; 4402 4403 if (phba->sli_rev == LPFC_SLI_REV4) { 4404 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4405 if (rpi == LPFC_RPI_ALLOC_ERROR) 4406 return NULL; 4407 } 4408 4409 spin_lock_irqsave(&phba->ndlp_lock, flags); 4410 /* The ndlp should not be in memory free mode */ 4411 if (NLP_CHK_FREE_REQ(ndlp)) { 4412 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4413 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4414 "0277 lpfc_enable_node: ndlp:x%p " 4415 "usgmap:x%x refcnt:%d\n", 4416 (void *)ndlp, ndlp->nlp_usg_map, 4417 kref_read(&ndlp->kref)); 4418 goto free_rpi; 4419 } 4420 /* The ndlp should not already be in active mode */ 4421 if (NLP_CHK_NODE_ACT(ndlp)) { 4422 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4423 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4424 "0278 lpfc_enable_node: ndlp:x%p " 4425 "usgmap:x%x refcnt:%d\n", 4426 (void *)ndlp, ndlp->nlp_usg_map, 4427 kref_read(&ndlp->kref)); 4428 goto free_rpi; 4429 } 4430 4431 /* Keep the original DID */ 4432 did = ndlp->nlp_DID; 4433 if (phba->sli_rev == LPFC_SLI_REV4) 4434 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4435 4436 /* re-initialize ndlp except of ndlp linked list pointer */ 4437 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4438 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4439 lpfc_initialize_node(vport, ndlp, did); 4440 4441 if (phba->sli_rev == LPFC_SLI_REV4) 4442 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4443 4444 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4445 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4446 ndlp->nlp_rpi = rpi; 4447 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4448 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4449 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4450 ndlp->nlp_flag, 4451 kref_read(&ndlp->kref), 4452 ndlp->nlp_usg_map, ndlp); 4453 } 4454 4455 4456 if (state != NLP_STE_UNUSED_NODE) 4457 lpfc_nlp_set_state(vport, ndlp, state); 4458 4459 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4460 "node enable: did:x%x", 4461 ndlp->nlp_DID, 0, 0); 4462 return ndlp; 4463 4464 free_rpi: 4465 if (phba->sli_rev == LPFC_SLI_REV4) 4466 lpfc_sli4_free_rpi(vport->phba, rpi); 4467 return NULL; 4468 } 4469 4470 void 4471 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4472 { 4473 /* 4474 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4475 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4476 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4477 * until ALL other outstanding threads have completed. We check 4478 * that the ndlp not already in the UNUSED state before we proceed. 4479 */ 4480 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4481 return; 4482 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4483 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4484 lpfc_cleanup_vports_rrqs(vport, ndlp); 4485 lpfc_unreg_rpi(vport, ndlp); 4486 } 4487 4488 lpfc_nlp_put(ndlp); 4489 return; 4490 } 4491 4492 /* 4493 * Start / ReStart rescue timer for Discovery / RSCN handling 4494 */ 4495 void 4496 lpfc_set_disctmo(struct lpfc_vport *vport) 4497 { 4498 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4499 struct lpfc_hba *phba = vport->phba; 4500 uint32_t tmo; 4501 4502 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4503 /* For FAN, timeout should be greater than edtov */ 4504 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4505 } else { 4506 /* Normal discovery timeout should be > than ELS/CT timeout 4507 * FC spec states we need 3 * ratov for CT requests 4508 */ 4509 tmo = ((phba->fc_ratov * 3) + 3); 4510 } 4511 4512 4513 if (!timer_pending(&vport->fc_disctmo)) { 4514 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4515 "set disc timer: tmo:x%x state:x%x flg:x%x", 4516 tmo, vport->port_state, vport->fc_flag); 4517 } 4518 4519 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4520 spin_lock_irq(shost->host_lock); 4521 vport->fc_flag |= FC_DISC_TMO; 4522 spin_unlock_irq(shost->host_lock); 4523 4524 /* Start Discovery Timer state <hba_state> */ 4525 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4526 "0247 Start Discovery Timer state x%x " 4527 "Data: x%x x%lx x%x x%x\n", 4528 vport->port_state, tmo, 4529 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4530 vport->fc_adisc_cnt); 4531 4532 return; 4533 } 4534 4535 /* 4536 * Cancel rescue timer for Discovery / RSCN handling 4537 */ 4538 int 4539 lpfc_can_disctmo(struct lpfc_vport *vport) 4540 { 4541 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4542 unsigned long iflags; 4543 4544 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4545 "can disc timer: state:x%x rtry:x%x flg:x%x", 4546 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4547 4548 /* Turn off discovery timer if its running */ 4549 if (vport->fc_flag & FC_DISC_TMO) { 4550 spin_lock_irqsave(shost->host_lock, iflags); 4551 vport->fc_flag &= ~FC_DISC_TMO; 4552 spin_unlock_irqrestore(shost->host_lock, iflags); 4553 del_timer_sync(&vport->fc_disctmo); 4554 spin_lock_irqsave(&vport->work_port_lock, iflags); 4555 vport->work_port_events &= ~WORKER_DISC_TMO; 4556 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4557 } 4558 4559 /* Cancel Discovery Timer state <hba_state> */ 4560 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4561 "0248 Cancel Discovery Timer state x%x " 4562 "Data: x%x x%x x%x\n", 4563 vport->port_state, vport->fc_flag, 4564 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4565 return 0; 4566 } 4567 4568 /* 4569 * Check specified ring for outstanding IOCB on the SLI queue 4570 * Return true if iocb matches the specified nport 4571 */ 4572 int 4573 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4574 struct lpfc_sli_ring *pring, 4575 struct lpfc_iocbq *iocb, 4576 struct lpfc_nodelist *ndlp) 4577 { 4578 IOCB_t *icmd = &iocb->iocb; 4579 struct lpfc_vport *vport = ndlp->vport; 4580 4581 if (iocb->vport != vport) 4582 return 0; 4583 4584 if (pring->ringno == LPFC_ELS_RING) { 4585 switch (icmd->ulpCommand) { 4586 case CMD_GEN_REQUEST64_CR: 4587 if (iocb->context_un.ndlp == ndlp) 4588 return 1; 4589 case CMD_ELS_REQUEST64_CR: 4590 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4591 return 1; 4592 case CMD_XMIT_ELS_RSP64_CX: 4593 if (iocb->context1 == (uint8_t *) ndlp) 4594 return 1; 4595 } 4596 } else if (pring->ringno == LPFC_FCP_RING) { 4597 /* Skip match check if waiting to relogin to FCP target */ 4598 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4599 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4600 return 0; 4601 } 4602 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4603 return 1; 4604 } 4605 } 4606 return 0; 4607 } 4608 4609 static void 4610 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4611 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4612 struct list_head *dequeue_list) 4613 { 4614 struct lpfc_iocbq *iocb, *next_iocb; 4615 4616 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4617 /* Check to see if iocb matches the nport */ 4618 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4619 /* match, dequeue */ 4620 list_move_tail(&iocb->list, dequeue_list); 4621 } 4622 } 4623 4624 static void 4625 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4626 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4627 { 4628 struct lpfc_sli *psli = &phba->sli; 4629 uint32_t i; 4630 4631 spin_lock_irq(&phba->hbalock); 4632 for (i = 0; i < psli->num_rings; i++) 4633 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4634 dequeue_list); 4635 spin_unlock_irq(&phba->hbalock); 4636 } 4637 4638 static void 4639 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4640 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4641 { 4642 struct lpfc_sli_ring *pring; 4643 struct lpfc_queue *qp = NULL; 4644 4645 spin_lock_irq(&phba->hbalock); 4646 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4647 pring = qp->pring; 4648 if (!pring) 4649 continue; 4650 spin_lock(&pring->ring_lock); 4651 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4652 spin_unlock(&pring->ring_lock); 4653 } 4654 spin_unlock_irq(&phba->hbalock); 4655 } 4656 4657 /* 4658 * Free resources / clean up outstanding I/Os 4659 * associated with nlp_rpi in the LPFC_NODELIST entry. 4660 */ 4661 static int 4662 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4663 { 4664 LIST_HEAD(completions); 4665 4666 lpfc_fabric_abort_nport(ndlp); 4667 4668 /* 4669 * Everything that matches on txcmplq will be returned 4670 * by firmware with a no rpi error. 4671 */ 4672 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4673 if (phba->sli_rev != LPFC_SLI_REV4) 4674 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4675 else 4676 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4677 } 4678 4679 /* Cancel all the IOCBs from the completions list */ 4680 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4681 IOERR_SLI_ABORTED); 4682 4683 return 0; 4684 } 4685 4686 /** 4687 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4688 * @phba: Pointer to HBA context object. 4689 * @pmb: Pointer to mailbox object. 4690 * 4691 * This function will issue an ELS LOGO command after completing 4692 * the UNREG_RPI. 4693 **/ 4694 static void 4695 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4696 { 4697 struct lpfc_vport *vport = pmb->vport; 4698 struct lpfc_nodelist *ndlp; 4699 4700 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4701 if (!ndlp) 4702 return; 4703 lpfc_issue_els_logo(vport, ndlp, 0); 4704 mempool_free(pmb, phba->mbox_mem_pool); 4705 } 4706 4707 /* 4708 * Free rpi associated with LPFC_NODELIST entry. 4709 * This routine is called from lpfc_freenode(), when we are removing 4710 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4711 * LOGO that completes successfully, and we are waiting to PLOGI back 4712 * to the remote NPort. In addition, it is called after we receive 4713 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4714 * we are waiting to PLOGI back to the remote NPort. 4715 */ 4716 int 4717 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4718 { 4719 struct lpfc_hba *phba = vport->phba; 4720 LPFC_MBOXQ_t *mbox; 4721 int rc, acc_plogi = 1; 4722 uint16_t rpi; 4723 4724 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4725 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4726 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4727 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4728 "3366 RPI x%x needs to be " 4729 "unregistered nlp_flag x%x " 4730 "did x%x\n", 4731 ndlp->nlp_rpi, ndlp->nlp_flag, 4732 ndlp->nlp_DID); 4733 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4734 if (mbox) { 4735 /* SLI4 ports require the physical rpi value. */ 4736 rpi = ndlp->nlp_rpi; 4737 if (phba->sli_rev == LPFC_SLI_REV4) 4738 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4739 4740 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4741 mbox->vport = vport; 4742 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4743 mbox->context1 = ndlp; 4744 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4745 } else { 4746 if (phba->sli_rev == LPFC_SLI_REV4 && 4747 (!(vport->load_flag & FC_UNLOADING)) && 4748 (bf_get(lpfc_sli_intf_if_type, 4749 &phba->sli4_hba.sli_intf) == 4750 LPFC_SLI_INTF_IF_TYPE_2) && 4751 (kref_read(&ndlp->kref) > 0)) { 4752 mbox->context1 = lpfc_nlp_get(ndlp); 4753 mbox->mbox_cmpl = 4754 lpfc_sli4_unreg_rpi_cmpl_clr; 4755 /* 4756 * accept PLOGIs after unreg_rpi_cmpl 4757 */ 4758 acc_plogi = 0; 4759 } else 4760 mbox->mbox_cmpl = 4761 lpfc_sli_def_mbox_cmpl; 4762 } 4763 4764 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4765 if (rc == MBX_NOT_FINISHED) { 4766 mempool_free(mbox, phba->mbox_mem_pool); 4767 acc_plogi = 1; 4768 } 4769 } 4770 lpfc_no_rpi(phba, ndlp); 4771 4772 if (phba->sli_rev != LPFC_SLI_REV4) 4773 ndlp->nlp_rpi = 0; 4774 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4775 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4776 if (acc_plogi) 4777 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4778 return 1; 4779 } 4780 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4781 return 0; 4782 } 4783 4784 /** 4785 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4786 * @phba: pointer to lpfc hba data structure. 4787 * 4788 * This routine is invoked to unregister all the currently registered RPIs 4789 * to the HBA. 4790 **/ 4791 void 4792 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4793 { 4794 struct lpfc_vport **vports; 4795 struct lpfc_nodelist *ndlp; 4796 struct Scsi_Host *shost; 4797 int i; 4798 4799 vports = lpfc_create_vport_work_array(phba); 4800 if (!vports) { 4801 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4802 "2884 Vport array allocation failed \n"); 4803 return; 4804 } 4805 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4806 shost = lpfc_shost_from_vport(vports[i]); 4807 spin_lock_irq(shost->host_lock); 4808 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4809 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4810 /* The mempool_alloc might sleep */ 4811 spin_unlock_irq(shost->host_lock); 4812 lpfc_unreg_rpi(vports[i], ndlp); 4813 spin_lock_irq(shost->host_lock); 4814 } 4815 } 4816 spin_unlock_irq(shost->host_lock); 4817 } 4818 lpfc_destroy_vport_work_array(phba, vports); 4819 } 4820 4821 void 4822 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4823 { 4824 struct lpfc_hba *phba = vport->phba; 4825 LPFC_MBOXQ_t *mbox; 4826 int rc; 4827 4828 if (phba->sli_rev == LPFC_SLI_REV4) { 4829 lpfc_sli4_unreg_all_rpis(vport); 4830 return; 4831 } 4832 4833 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4834 if (mbox) { 4835 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4836 mbox); 4837 mbox->vport = vport; 4838 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4839 mbox->context1 = NULL; 4840 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4841 if (rc != MBX_TIMEOUT) 4842 mempool_free(mbox, phba->mbox_mem_pool); 4843 4844 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4845 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4846 "1836 Could not issue " 4847 "unreg_login(all_rpis) status %d\n", rc); 4848 } 4849 } 4850 4851 void 4852 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4853 { 4854 struct lpfc_hba *phba = vport->phba; 4855 LPFC_MBOXQ_t *mbox; 4856 int rc; 4857 4858 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4859 if (mbox) { 4860 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4861 mbox); 4862 mbox->vport = vport; 4863 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4864 mbox->context1 = NULL; 4865 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4866 if (rc != MBX_TIMEOUT) 4867 mempool_free(mbox, phba->mbox_mem_pool); 4868 4869 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4870 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4871 "1815 Could not issue " 4872 "unreg_did (default rpis) status %d\n", 4873 rc); 4874 } 4875 } 4876 4877 /* 4878 * Free resources associated with LPFC_NODELIST entry 4879 * so it can be freed. 4880 */ 4881 static int 4882 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4883 { 4884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4885 struct lpfc_hba *phba = vport->phba; 4886 LPFC_MBOXQ_t *mb, *nextmb; 4887 struct lpfc_dmabuf *mp; 4888 4889 /* Cleanup node for NPort <nlp_DID> */ 4890 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4891 "0900 Cleanup node for NPort x%x " 4892 "Data: x%x x%x x%x\n", 4893 ndlp->nlp_DID, ndlp->nlp_flag, 4894 ndlp->nlp_state, ndlp->nlp_rpi); 4895 if (NLP_CHK_FREE_REQ(ndlp)) { 4896 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4897 "0280 lpfc_cleanup_node: ndlp:x%p " 4898 "usgmap:x%x refcnt:%d\n", 4899 (void *)ndlp, ndlp->nlp_usg_map, 4900 kref_read(&ndlp->kref)); 4901 lpfc_dequeue_node(vport, ndlp); 4902 } else { 4903 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4904 "0281 lpfc_cleanup_node: ndlp:x%p " 4905 "usgmap:x%x refcnt:%d\n", 4906 (void *)ndlp, ndlp->nlp_usg_map, 4907 kref_read(&ndlp->kref)); 4908 lpfc_disable_node(vport, ndlp); 4909 } 4910 4911 4912 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4913 4914 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4915 if ((mb = phba->sli.mbox_active)) { 4916 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4917 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4918 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4919 mb->context2 = NULL; 4920 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4921 } 4922 } 4923 4924 spin_lock_irq(&phba->hbalock); 4925 /* Cleanup REG_LOGIN completions which are not yet processed */ 4926 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4927 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4928 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4929 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4930 continue; 4931 4932 mb->context2 = NULL; 4933 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4934 } 4935 4936 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4937 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4938 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4939 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4940 mp = (struct lpfc_dmabuf *) (mb->context1); 4941 if (mp) { 4942 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4943 kfree(mp); 4944 } 4945 list_del(&mb->list); 4946 mempool_free(mb, phba->mbox_mem_pool); 4947 /* We shall not invoke the lpfc_nlp_put to decrement 4948 * the ndlp reference count as we are in the process 4949 * of lpfc_nlp_release. 4950 */ 4951 } 4952 } 4953 spin_unlock_irq(&phba->hbalock); 4954 4955 lpfc_els_abort(phba, ndlp); 4956 4957 spin_lock_irq(shost->host_lock); 4958 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4959 spin_unlock_irq(shost->host_lock); 4960 4961 ndlp->nlp_last_elscmd = 0; 4962 del_timer_sync(&ndlp->nlp_delayfunc); 4963 4964 list_del_init(&ndlp->els_retry_evt.evt_listp); 4965 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4966 lpfc_cleanup_vports_rrqs(vport, ndlp); 4967 lpfc_unreg_rpi(vport, ndlp); 4968 4969 return 0; 4970 } 4971 4972 /* 4973 * Check to see if we can free the nlp back to the freelist. 4974 * If we are in the middle of using the nlp in the discovery state 4975 * machine, defer the free till we reach the end of the state machine. 4976 */ 4977 static void 4978 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4979 { 4980 struct lpfc_hba *phba = vport->phba; 4981 struct lpfc_rport_data *rdata; 4982 struct fc_rport *rport; 4983 LPFC_MBOXQ_t *mbox; 4984 int rc; 4985 4986 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4987 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4988 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4989 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 4990 phba->sli_rev != LPFC_SLI_REV4) { 4991 /* For this case we need to cleanup the default rpi 4992 * allocated by the firmware. 4993 */ 4994 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4995 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4996 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4997 kref_read(&ndlp->kref), 4998 ndlp->nlp_usg_map, ndlp); 4999 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5000 != NULL) { 5001 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5002 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5003 if (rc) { 5004 mempool_free(mbox, phba->mbox_mem_pool); 5005 } 5006 else { 5007 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5008 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5009 mbox->vport = vport; 5010 mbox->context2 = ndlp; 5011 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5012 if (rc == MBX_NOT_FINISHED) { 5013 mempool_free(mbox, phba->mbox_mem_pool); 5014 } 5015 } 5016 } 5017 } 5018 lpfc_cleanup_node(vport, ndlp); 5019 5020 /* 5021 * ndlp->rport must be set to NULL before it reaches here 5022 * i.e. break rport/node link before doing lpfc_nlp_put for 5023 * registered rport and then drop the reference of rport. 5024 */ 5025 if (ndlp->rport) { 5026 /* 5027 * extra lpfc_nlp_put dropped the reference of ndlp 5028 * for registered rport so need to cleanup rport 5029 */ 5030 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5031 "0940 removed node x%p DID x%x " 5032 " rport not null %p\n", 5033 ndlp, ndlp->nlp_DID, ndlp->rport); 5034 rport = ndlp->rport; 5035 rdata = rport->dd_data; 5036 rdata->pnode = NULL; 5037 ndlp->rport = NULL; 5038 put_device(&rport->dev); 5039 } 5040 } 5041 5042 static int 5043 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5044 uint32_t did) 5045 { 5046 D_ID mydid, ndlpdid, matchdid; 5047 5048 if (did == Bcast_DID) 5049 return 0; 5050 5051 /* First check for Direct match */ 5052 if (ndlp->nlp_DID == did) 5053 return 1; 5054 5055 /* Next check for area/domain identically equals 0 match */ 5056 mydid.un.word = vport->fc_myDID; 5057 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5058 return 0; 5059 } 5060 5061 matchdid.un.word = did; 5062 ndlpdid.un.word = ndlp->nlp_DID; 5063 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5064 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5065 (mydid.un.b.area == matchdid.un.b.area)) { 5066 /* This code is supposed to match the ID 5067 * for a private loop device that is 5068 * connect to fl_port. But we need to 5069 * check that the port did not just go 5070 * from pt2pt to fabric or we could end 5071 * up matching ndlp->nlp_DID 000001 to 5072 * fabric DID 0x20101 5073 */ 5074 if ((ndlpdid.un.b.domain == 0) && 5075 (ndlpdid.un.b.area == 0)) { 5076 if (ndlpdid.un.b.id && 5077 vport->phba->fc_topology == 5078 LPFC_TOPOLOGY_LOOP) 5079 return 1; 5080 } 5081 return 0; 5082 } 5083 5084 matchdid.un.word = ndlp->nlp_DID; 5085 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5086 (mydid.un.b.area == ndlpdid.un.b.area)) { 5087 if ((matchdid.un.b.domain == 0) && 5088 (matchdid.un.b.area == 0)) { 5089 if (matchdid.un.b.id) 5090 return 1; 5091 } 5092 } 5093 } 5094 return 0; 5095 } 5096 5097 /* Search for a nodelist entry */ 5098 static struct lpfc_nodelist * 5099 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5100 { 5101 struct lpfc_nodelist *ndlp; 5102 uint32_t data1; 5103 5104 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5105 if (lpfc_matchdid(vport, ndlp, did)) { 5106 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5107 ((uint32_t) ndlp->nlp_xri << 16) | 5108 ((uint32_t) ndlp->nlp_type << 8) | 5109 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5110 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5111 "0929 FIND node DID " 5112 "Data: x%p x%x x%x x%x %p\n", 5113 ndlp, ndlp->nlp_DID, 5114 ndlp->nlp_flag, data1, 5115 ndlp->active_rrqs_xri_bitmap); 5116 return ndlp; 5117 } 5118 } 5119 5120 /* FIND node did <did> NOT FOUND */ 5121 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5122 "0932 FIND node did x%x NOT FOUND.\n", did); 5123 return NULL; 5124 } 5125 5126 struct lpfc_nodelist * 5127 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5128 { 5129 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5130 struct lpfc_nodelist *ndlp; 5131 unsigned long iflags; 5132 5133 spin_lock_irqsave(shost->host_lock, iflags); 5134 ndlp = __lpfc_findnode_did(vport, did); 5135 spin_unlock_irqrestore(shost->host_lock, iflags); 5136 return ndlp; 5137 } 5138 5139 struct lpfc_nodelist * 5140 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5141 { 5142 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5143 struct lpfc_nodelist *ndlp; 5144 5145 ndlp = lpfc_findnode_did(vport, did); 5146 if (!ndlp) { 5147 if (vport->phba->nvmet_support) 5148 return NULL; 5149 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5150 lpfc_rscn_payload_check(vport, did) == 0) 5151 return NULL; 5152 ndlp = lpfc_nlp_init(vport, did); 5153 if (!ndlp) 5154 return NULL; 5155 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5156 spin_lock_irq(shost->host_lock); 5157 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5158 spin_unlock_irq(shost->host_lock); 5159 return ndlp; 5160 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5161 if (vport->phba->nvmet_support) 5162 return NULL; 5163 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5164 if (!ndlp) 5165 return NULL; 5166 spin_lock_irq(shost->host_lock); 5167 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5168 spin_unlock_irq(shost->host_lock); 5169 return ndlp; 5170 } 5171 5172 /* The NVME Target does not want to actively manage an rport. 5173 * The goal is to allow the target to reset its state and clear 5174 * pending IO in preparation for the initiator to recover. 5175 */ 5176 if ((vport->fc_flag & FC_RSCN_MODE) && 5177 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5178 if (lpfc_rscn_payload_check(vport, did)) { 5179 5180 /* Since this node is marked for discovery, 5181 * delay timeout is not needed. 5182 */ 5183 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5184 5185 /* NVME Target mode waits until rport is known to be 5186 * impacted by the RSCN before it transitions. No 5187 * active management - just go to NPR provided the 5188 * node had a valid login. 5189 */ 5190 if (vport->phba->nvmet_support) 5191 return ndlp; 5192 5193 /* If we've already received a PLOGI from this NPort 5194 * we don't need to try to discover it again. 5195 */ 5196 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5197 return NULL; 5198 5199 spin_lock_irq(shost->host_lock); 5200 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5201 spin_unlock_irq(shost->host_lock); 5202 } else 5203 ndlp = NULL; 5204 } else { 5205 /* If the initiator received a PLOGI from this NPort or if the 5206 * initiator is already in the process of discovery on it, 5207 * there's no need to try to discover it again. 5208 */ 5209 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5210 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5211 (!vport->phba->nvmet_support && 5212 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5213 return NULL; 5214 5215 if (vport->phba->nvmet_support) 5216 return ndlp; 5217 5218 /* Moving to NPR state clears unsolicited flags and 5219 * allows for rediscovery 5220 */ 5221 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5222 5223 spin_lock_irq(shost->host_lock); 5224 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5225 spin_unlock_irq(shost->host_lock); 5226 } 5227 return ndlp; 5228 } 5229 5230 /* Build a list of nodes to discover based on the loopmap */ 5231 void 5232 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5233 { 5234 struct lpfc_hba *phba = vport->phba; 5235 int j; 5236 uint32_t alpa, index; 5237 5238 if (!lpfc_is_link_up(phba)) 5239 return; 5240 5241 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5242 return; 5243 5244 /* Check for loop map present or not */ 5245 if (phba->alpa_map[0]) { 5246 for (j = 1; j <= phba->alpa_map[0]; j++) { 5247 alpa = phba->alpa_map[j]; 5248 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5249 continue; 5250 lpfc_setup_disc_node(vport, alpa); 5251 } 5252 } else { 5253 /* No alpamap, so try all alpa's */ 5254 for (j = 0; j < FC_MAXLOOP; j++) { 5255 /* If cfg_scan_down is set, start from highest 5256 * ALPA (0xef) to lowest (0x1). 5257 */ 5258 if (vport->cfg_scan_down) 5259 index = j; 5260 else 5261 index = FC_MAXLOOP - j - 1; 5262 alpa = lpfcAlpaArray[index]; 5263 if ((vport->fc_myDID & 0xff) == alpa) 5264 continue; 5265 lpfc_setup_disc_node(vport, alpa); 5266 } 5267 } 5268 return; 5269 } 5270 5271 /* SLI3 only */ 5272 void 5273 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5274 { 5275 LPFC_MBOXQ_t *mbox; 5276 struct lpfc_sli *psli = &phba->sli; 5277 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5278 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5279 int rc; 5280 5281 /* 5282 * if it's not a physical port or if we already send 5283 * clear_la then don't send it. 5284 */ 5285 if ((phba->link_state >= LPFC_CLEAR_LA) || 5286 (vport->port_type != LPFC_PHYSICAL_PORT) || 5287 (phba->sli_rev == LPFC_SLI_REV4)) 5288 return; 5289 5290 /* Link up discovery */ 5291 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5292 phba->link_state = LPFC_CLEAR_LA; 5293 lpfc_clear_la(phba, mbox); 5294 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5295 mbox->vport = vport; 5296 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5297 if (rc == MBX_NOT_FINISHED) { 5298 mempool_free(mbox, phba->mbox_mem_pool); 5299 lpfc_disc_flush_list(vport); 5300 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5301 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5302 phba->link_state = LPFC_HBA_ERROR; 5303 } 5304 } 5305 } 5306 5307 /* Reg_vpi to tell firmware to resume normal operations */ 5308 void 5309 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5310 { 5311 LPFC_MBOXQ_t *regvpimbox; 5312 5313 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5314 if (regvpimbox) { 5315 lpfc_reg_vpi(vport, regvpimbox); 5316 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5317 regvpimbox->vport = vport; 5318 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5319 == MBX_NOT_FINISHED) { 5320 mempool_free(regvpimbox, phba->mbox_mem_pool); 5321 } 5322 } 5323 } 5324 5325 /* Start Link up / RSCN discovery on NPR nodes */ 5326 void 5327 lpfc_disc_start(struct lpfc_vport *vport) 5328 { 5329 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5330 struct lpfc_hba *phba = vport->phba; 5331 uint32_t num_sent; 5332 uint32_t clear_la_pending; 5333 5334 if (!lpfc_is_link_up(phba)) { 5335 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5336 "3315 Link is not up %x\n", 5337 phba->link_state); 5338 return; 5339 } 5340 5341 if (phba->link_state == LPFC_CLEAR_LA) 5342 clear_la_pending = 1; 5343 else 5344 clear_la_pending = 0; 5345 5346 if (vport->port_state < LPFC_VPORT_READY) 5347 vport->port_state = LPFC_DISC_AUTH; 5348 5349 lpfc_set_disctmo(vport); 5350 5351 vport->fc_prevDID = vport->fc_myDID; 5352 vport->num_disc_nodes = 0; 5353 5354 /* Start Discovery state <hba_state> */ 5355 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5356 "0202 Start Discovery hba state x%x " 5357 "Data: x%x x%x x%x\n", 5358 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5359 vport->fc_adisc_cnt); 5360 5361 /* First do ADISCs - if any */ 5362 num_sent = lpfc_els_disc_adisc(vport); 5363 5364 if (num_sent) 5365 return; 5366 5367 /* Register the VPI for SLI3, NPIV only. */ 5368 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5369 !(vport->fc_flag & FC_PT2PT) && 5370 !(vport->fc_flag & FC_RSCN_MODE) && 5371 (phba->sli_rev < LPFC_SLI_REV4)) { 5372 lpfc_issue_clear_la(phba, vport); 5373 lpfc_issue_reg_vpi(phba, vport); 5374 return; 5375 } 5376 5377 /* 5378 * For SLI2, we need to set port_state to READY and continue 5379 * discovery. 5380 */ 5381 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5382 /* If we get here, there is nothing to ADISC */ 5383 lpfc_issue_clear_la(phba, vport); 5384 5385 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5386 vport->num_disc_nodes = 0; 5387 /* go thru NPR nodes and issue ELS PLOGIs */ 5388 if (vport->fc_npr_cnt) 5389 lpfc_els_disc_plogi(vport); 5390 5391 if (!vport->num_disc_nodes) { 5392 spin_lock_irq(shost->host_lock); 5393 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5394 spin_unlock_irq(shost->host_lock); 5395 lpfc_can_disctmo(vport); 5396 } 5397 } 5398 vport->port_state = LPFC_VPORT_READY; 5399 } else { 5400 /* Next do PLOGIs - if any */ 5401 num_sent = lpfc_els_disc_plogi(vport); 5402 5403 if (num_sent) 5404 return; 5405 5406 if (vport->fc_flag & FC_RSCN_MODE) { 5407 /* Check to see if more RSCNs came in while we 5408 * were processing this one. 5409 */ 5410 if ((vport->fc_rscn_id_cnt == 0) && 5411 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5412 spin_lock_irq(shost->host_lock); 5413 vport->fc_flag &= ~FC_RSCN_MODE; 5414 spin_unlock_irq(shost->host_lock); 5415 lpfc_can_disctmo(vport); 5416 } else 5417 lpfc_els_handle_rscn(vport); 5418 } 5419 } 5420 return; 5421 } 5422 5423 /* 5424 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5425 * ring the match the sppecified nodelist. 5426 */ 5427 static void 5428 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5429 { 5430 LIST_HEAD(completions); 5431 IOCB_t *icmd; 5432 struct lpfc_iocbq *iocb, *next_iocb; 5433 struct lpfc_sli_ring *pring; 5434 5435 pring = lpfc_phba_elsring(phba); 5436 if (unlikely(!pring)) 5437 return; 5438 5439 /* Error matching iocb on txq or txcmplq 5440 * First check the txq. 5441 */ 5442 spin_lock_irq(&phba->hbalock); 5443 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5444 if (iocb->context1 != ndlp) { 5445 continue; 5446 } 5447 icmd = &iocb->iocb; 5448 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5449 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5450 5451 list_move_tail(&iocb->list, &completions); 5452 } 5453 } 5454 5455 /* Next check the txcmplq */ 5456 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5457 if (iocb->context1 != ndlp) { 5458 continue; 5459 } 5460 icmd = &iocb->iocb; 5461 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5462 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5463 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5464 } 5465 } 5466 spin_unlock_irq(&phba->hbalock); 5467 5468 /* Cancel all the IOCBs from the completions list */ 5469 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5470 IOERR_SLI_ABORTED); 5471 } 5472 5473 static void 5474 lpfc_disc_flush_list(struct lpfc_vport *vport) 5475 { 5476 struct lpfc_nodelist *ndlp, *next_ndlp; 5477 struct lpfc_hba *phba = vport->phba; 5478 5479 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5480 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5481 nlp_listp) { 5482 if (!NLP_CHK_NODE_ACT(ndlp)) 5483 continue; 5484 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5485 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5486 lpfc_free_tx(phba, ndlp); 5487 } 5488 } 5489 } 5490 } 5491 5492 void 5493 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5494 { 5495 lpfc_els_flush_rscn(vport); 5496 lpfc_els_flush_cmd(vport); 5497 lpfc_disc_flush_list(vport); 5498 } 5499 5500 /*****************************************************************************/ 5501 /* 5502 * NAME: lpfc_disc_timeout 5503 * 5504 * FUNCTION: Fibre Channel driver discovery timeout routine. 5505 * 5506 * EXECUTION ENVIRONMENT: interrupt only 5507 * 5508 * CALLED FROM: 5509 * Timer function 5510 * 5511 * RETURNS: 5512 * none 5513 */ 5514 /*****************************************************************************/ 5515 void 5516 lpfc_disc_timeout(struct timer_list *t) 5517 { 5518 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5519 struct lpfc_hba *phba = vport->phba; 5520 uint32_t tmo_posted; 5521 unsigned long flags = 0; 5522 5523 if (unlikely(!phba)) 5524 return; 5525 5526 spin_lock_irqsave(&vport->work_port_lock, flags); 5527 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5528 if (!tmo_posted) 5529 vport->work_port_events |= WORKER_DISC_TMO; 5530 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5531 5532 if (!tmo_posted) 5533 lpfc_worker_wake_up(phba); 5534 return; 5535 } 5536 5537 static void 5538 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5539 { 5540 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5541 struct lpfc_hba *phba = vport->phba; 5542 struct lpfc_sli *psli = &phba->sli; 5543 struct lpfc_nodelist *ndlp, *next_ndlp; 5544 LPFC_MBOXQ_t *initlinkmbox; 5545 int rc, clrlaerr = 0; 5546 5547 if (!(vport->fc_flag & FC_DISC_TMO)) 5548 return; 5549 5550 spin_lock_irq(shost->host_lock); 5551 vport->fc_flag &= ~FC_DISC_TMO; 5552 spin_unlock_irq(shost->host_lock); 5553 5554 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5555 "disc timeout: state:x%x rtry:x%x flg:x%x", 5556 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5557 5558 switch (vport->port_state) { 5559 5560 case LPFC_LOCAL_CFG_LINK: 5561 /* 5562 * port_state is identically LPFC_LOCAL_CFG_LINK while 5563 * waiting for FAN timeout 5564 */ 5565 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5566 "0221 FAN timeout\n"); 5567 5568 /* Start discovery by sending FLOGI, clean up old rpis */ 5569 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5570 nlp_listp) { 5571 if (!NLP_CHK_NODE_ACT(ndlp)) 5572 continue; 5573 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5574 continue; 5575 if (ndlp->nlp_type & NLP_FABRIC) { 5576 /* Clean up the ndlp on Fabric connections */ 5577 lpfc_drop_node(vport, ndlp); 5578 5579 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5580 /* Fail outstanding IO now since device 5581 * is marked for PLOGI. 5582 */ 5583 lpfc_unreg_rpi(vport, ndlp); 5584 } 5585 } 5586 if (vport->port_state != LPFC_FLOGI) { 5587 if (phba->sli_rev <= LPFC_SLI_REV3) 5588 lpfc_initial_flogi(vport); 5589 else 5590 lpfc_issue_init_vfi(vport); 5591 return; 5592 } 5593 break; 5594 5595 case LPFC_FDISC: 5596 case LPFC_FLOGI: 5597 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5598 /* Initial FLOGI timeout */ 5599 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5600 "0222 Initial %s timeout\n", 5601 vport->vpi ? "FDISC" : "FLOGI"); 5602 5603 /* Assume no Fabric and go on with discovery. 5604 * Check for outstanding ELS FLOGI to abort. 5605 */ 5606 5607 /* FLOGI failed, so just use loop map to make discovery list */ 5608 lpfc_disc_list_loopmap(vport); 5609 5610 /* Start discovery */ 5611 lpfc_disc_start(vport); 5612 break; 5613 5614 case LPFC_FABRIC_CFG_LINK: 5615 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5616 NameServer login */ 5617 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5618 "0223 Timeout while waiting for " 5619 "NameServer login\n"); 5620 /* Next look for NameServer ndlp */ 5621 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5622 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5623 lpfc_els_abort(phba, ndlp); 5624 5625 /* ReStart discovery */ 5626 goto restart_disc; 5627 5628 case LPFC_NS_QRY: 5629 /* Check for wait for NameServer Rsp timeout */ 5630 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5631 "0224 NameServer Query timeout " 5632 "Data: x%x x%x\n", 5633 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5634 5635 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5636 /* Try it one more time */ 5637 vport->fc_ns_retry++; 5638 vport->gidft_inp = 0; 5639 rc = lpfc_issue_gidft(vport); 5640 if (rc == 0) 5641 break; 5642 } 5643 vport->fc_ns_retry = 0; 5644 5645 restart_disc: 5646 /* 5647 * Discovery is over. 5648 * set port_state to PORT_READY if SLI2. 5649 * cmpl_reg_vpi will set port_state to READY for SLI3. 5650 */ 5651 if (phba->sli_rev < LPFC_SLI_REV4) { 5652 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5653 lpfc_issue_reg_vpi(phba, vport); 5654 else { 5655 lpfc_issue_clear_la(phba, vport); 5656 vport->port_state = LPFC_VPORT_READY; 5657 } 5658 } 5659 5660 /* Setup and issue mailbox INITIALIZE LINK command */ 5661 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5662 if (!initlinkmbox) { 5663 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5664 "0206 Device Discovery " 5665 "completion error\n"); 5666 phba->link_state = LPFC_HBA_ERROR; 5667 break; 5668 } 5669 5670 lpfc_linkdown(phba); 5671 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5672 phba->cfg_link_speed); 5673 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5674 initlinkmbox->vport = vport; 5675 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5676 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5677 lpfc_set_loopback_flag(phba); 5678 if (rc == MBX_NOT_FINISHED) 5679 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5680 5681 break; 5682 5683 case LPFC_DISC_AUTH: 5684 /* Node Authentication timeout */ 5685 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5686 "0227 Node Authentication timeout\n"); 5687 lpfc_disc_flush_list(vport); 5688 5689 /* 5690 * set port_state to PORT_READY if SLI2. 5691 * cmpl_reg_vpi will set port_state to READY for SLI3. 5692 */ 5693 if (phba->sli_rev < LPFC_SLI_REV4) { 5694 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5695 lpfc_issue_reg_vpi(phba, vport); 5696 else { /* NPIV Not enabled */ 5697 lpfc_issue_clear_la(phba, vport); 5698 vport->port_state = LPFC_VPORT_READY; 5699 } 5700 } 5701 break; 5702 5703 case LPFC_VPORT_READY: 5704 if (vport->fc_flag & FC_RSCN_MODE) { 5705 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5706 "0231 RSCN timeout Data: x%x " 5707 "x%x\n", 5708 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5709 5710 /* Cleanup any outstanding ELS commands */ 5711 lpfc_els_flush_cmd(vport); 5712 5713 lpfc_els_flush_rscn(vport); 5714 lpfc_disc_flush_list(vport); 5715 } 5716 break; 5717 5718 default: 5719 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5720 "0273 Unexpected discovery timeout, " 5721 "vport State x%x\n", vport->port_state); 5722 break; 5723 } 5724 5725 switch (phba->link_state) { 5726 case LPFC_CLEAR_LA: 5727 /* CLEAR LA timeout */ 5728 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5729 "0228 CLEAR LA timeout\n"); 5730 clrlaerr = 1; 5731 break; 5732 5733 case LPFC_LINK_UP: 5734 lpfc_issue_clear_la(phba, vport); 5735 /* Drop thru */ 5736 case LPFC_LINK_UNKNOWN: 5737 case LPFC_WARM_START: 5738 case LPFC_INIT_START: 5739 case LPFC_INIT_MBX_CMDS: 5740 case LPFC_LINK_DOWN: 5741 case LPFC_HBA_ERROR: 5742 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5743 "0230 Unexpected timeout, hba link " 5744 "state x%x\n", phba->link_state); 5745 clrlaerr = 1; 5746 break; 5747 5748 case LPFC_HBA_READY: 5749 break; 5750 } 5751 5752 if (clrlaerr) { 5753 lpfc_disc_flush_list(vport); 5754 if (phba->sli_rev != LPFC_SLI_REV4) { 5755 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5756 ~LPFC_STOP_IOCB_EVENT; 5757 psli->sli3_ring[LPFC_FCP_RING].flag &= 5758 ~LPFC_STOP_IOCB_EVENT; 5759 } 5760 vport->port_state = LPFC_VPORT_READY; 5761 } 5762 return; 5763 } 5764 5765 /* 5766 * This routine handles processing a NameServer REG_LOGIN mailbox 5767 * command upon completion. It is setup in the LPFC_MBOXQ 5768 * as the completion routine when the command is 5769 * handed off to the SLI layer. 5770 */ 5771 void 5772 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5773 { 5774 MAILBOX_t *mb = &pmb->u.mb; 5775 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5776 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5777 struct lpfc_vport *vport = pmb->vport; 5778 5779 pmb->context1 = NULL; 5780 pmb->context2 = NULL; 5781 5782 if (phba->sli_rev < LPFC_SLI_REV4) 5783 ndlp->nlp_rpi = mb->un.varWords[0]; 5784 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5785 ndlp->nlp_type |= NLP_FABRIC; 5786 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5787 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5788 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5789 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5790 kref_read(&ndlp->kref), 5791 ndlp->nlp_usg_map, ndlp); 5792 /* 5793 * Start issuing Fabric-Device Management Interface (FDMI) command to 5794 * 0xfffffa (FDMI well known port). 5795 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5796 * DPRT -> RPRT (vports) 5797 */ 5798 if (vport->port_type == LPFC_PHYSICAL_PORT) 5799 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5800 else 5801 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5802 5803 5804 /* decrement the node reference count held for this callback 5805 * function. 5806 */ 5807 lpfc_nlp_put(ndlp); 5808 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5809 kfree(mp); 5810 mempool_free(pmb, phba->mbox_mem_pool); 5811 5812 return; 5813 } 5814 5815 static int 5816 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5817 { 5818 uint16_t *rpi = param; 5819 5820 /* check for active node */ 5821 if (!NLP_CHK_NODE_ACT(ndlp)) 5822 return 0; 5823 5824 return ndlp->nlp_rpi == *rpi; 5825 } 5826 5827 static int 5828 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5829 { 5830 return memcmp(&ndlp->nlp_portname, param, 5831 sizeof(ndlp->nlp_portname)) == 0; 5832 } 5833 5834 static struct lpfc_nodelist * 5835 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5836 { 5837 struct lpfc_nodelist *ndlp; 5838 5839 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5840 if (filter(ndlp, param)) { 5841 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5842 "3185 FIND node filter %p DID " 5843 "ndlp %p did x%x flg x%x st x%x " 5844 "xri x%x type x%x rpi x%x\n", 5845 filter, ndlp, ndlp->nlp_DID, 5846 ndlp->nlp_flag, ndlp->nlp_state, 5847 ndlp->nlp_xri, ndlp->nlp_type, 5848 ndlp->nlp_rpi); 5849 return ndlp; 5850 } 5851 } 5852 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5853 "3186 FIND node filter %p NOT FOUND.\n", filter); 5854 return NULL; 5855 } 5856 5857 /* 5858 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5859 * returns the node list element pointer else return NULL. 5860 */ 5861 struct lpfc_nodelist * 5862 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5863 { 5864 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5865 } 5866 5867 /* 5868 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5869 * returns the node element list pointer else return NULL. 5870 */ 5871 struct lpfc_nodelist * 5872 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5873 { 5874 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5875 struct lpfc_nodelist *ndlp; 5876 5877 spin_lock_irq(shost->host_lock); 5878 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5879 spin_unlock_irq(shost->host_lock); 5880 return ndlp; 5881 } 5882 5883 /* 5884 * This routine looks up the ndlp lists for the given RPI. If the rpi 5885 * is found, the routine returns the node element list pointer else 5886 * return NULL. 5887 */ 5888 struct lpfc_nodelist * 5889 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5890 { 5891 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5892 struct lpfc_nodelist *ndlp; 5893 5894 spin_lock_irq(shost->host_lock); 5895 ndlp = __lpfc_findnode_rpi(vport, rpi); 5896 spin_unlock_irq(shost->host_lock); 5897 return ndlp; 5898 } 5899 5900 /** 5901 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5902 * @phba: pointer to lpfc hba data structure. 5903 * @vpi: the physical host virtual N_Port identifier. 5904 * 5905 * This routine finds a vport on a HBA (referred by @phba) through a 5906 * @vpi. The function walks the HBA's vport list and returns the address 5907 * of the vport with the matching @vpi. 5908 * 5909 * Return code 5910 * NULL - No vport with the matching @vpi found 5911 * Otherwise - Address to the vport with the matching @vpi. 5912 **/ 5913 struct lpfc_vport * 5914 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5915 { 5916 struct lpfc_vport *vport; 5917 unsigned long flags; 5918 int i = 0; 5919 5920 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5921 if (vpi > 0) { 5922 /* 5923 * Translate the physical vpi to the logical vpi. The 5924 * vport stores the logical vpi. 5925 */ 5926 for (i = 0; i < phba->max_vpi; i++) { 5927 if (vpi == phba->vpi_ids[i]) 5928 break; 5929 } 5930 5931 if (i >= phba->max_vpi) { 5932 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5933 "2936 Could not find Vport mapped " 5934 "to vpi %d\n", vpi); 5935 return NULL; 5936 } 5937 } 5938 5939 spin_lock_irqsave(&phba->port_list_lock, flags); 5940 list_for_each_entry(vport, &phba->port_list, listentry) { 5941 if (vport->vpi == i) { 5942 spin_unlock_irqrestore(&phba->port_list_lock, flags); 5943 return vport; 5944 } 5945 } 5946 spin_unlock_irqrestore(&phba->port_list_lock, flags); 5947 return NULL; 5948 } 5949 5950 struct lpfc_nodelist * 5951 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 5952 { 5953 struct lpfc_nodelist *ndlp; 5954 int rpi = LPFC_RPI_ALLOC_ERROR; 5955 5956 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5957 rpi = lpfc_sli4_alloc_rpi(vport->phba); 5958 if (rpi == LPFC_RPI_ALLOC_ERROR) 5959 return NULL; 5960 } 5961 5962 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 5963 if (!ndlp) { 5964 if (vport->phba->sli_rev == LPFC_SLI_REV4) 5965 lpfc_sli4_free_rpi(vport->phba, rpi); 5966 return NULL; 5967 } 5968 5969 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5970 5971 lpfc_initialize_node(vport, ndlp, did); 5972 INIT_LIST_HEAD(&ndlp->nlp_listp); 5973 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5974 ndlp->nlp_rpi = rpi; 5975 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5976 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5977 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5978 ndlp->nlp_flag, 5979 kref_read(&ndlp->kref), 5980 ndlp->nlp_usg_map, ndlp); 5981 5982 ndlp->active_rrqs_xri_bitmap = 5983 mempool_alloc(vport->phba->active_rrq_pool, 5984 GFP_KERNEL); 5985 if (ndlp->active_rrqs_xri_bitmap) 5986 memset(ndlp->active_rrqs_xri_bitmap, 0, 5987 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5988 } 5989 5990 5991 5992 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5993 "node init: did:x%x", 5994 ndlp->nlp_DID, 0, 0); 5995 5996 return ndlp; 5997 } 5998 5999 /* This routine releases all resources associated with a specifc NPort's ndlp 6000 * and mempool_free's the nodelist. 6001 */ 6002 static void 6003 lpfc_nlp_release(struct kref *kref) 6004 { 6005 struct lpfc_hba *phba; 6006 unsigned long flags; 6007 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6008 kref); 6009 6010 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6011 "node release: did:x%x flg:x%x type:x%x", 6012 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6013 6014 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6015 "0279 lpfc_nlp_release: ndlp:x%p did %x " 6016 "usgmap:x%x refcnt:%d rpi:%x\n", 6017 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6018 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6019 6020 /* remove ndlp from action. */ 6021 lpfc_nlp_remove(ndlp->vport, ndlp); 6022 6023 /* clear the ndlp active flag for all release cases */ 6024 phba = ndlp->phba; 6025 spin_lock_irqsave(&phba->ndlp_lock, flags); 6026 NLP_CLR_NODE_ACT(ndlp); 6027 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6028 if (phba->sli_rev == LPFC_SLI_REV4) 6029 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 6030 6031 /* free ndlp memory for final ndlp release */ 6032 if (NLP_CHK_FREE_REQ(ndlp)) { 6033 kfree(ndlp->lat_data); 6034 if (phba->sli_rev == LPFC_SLI_REV4) 6035 mempool_free(ndlp->active_rrqs_xri_bitmap, 6036 ndlp->phba->active_rrq_pool); 6037 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6038 } 6039 } 6040 6041 /* This routine bumps the reference count for a ndlp structure to ensure 6042 * that one discovery thread won't free a ndlp while another discovery thread 6043 * is using it. 6044 */ 6045 struct lpfc_nodelist * 6046 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6047 { 6048 struct lpfc_hba *phba; 6049 unsigned long flags; 6050 6051 if (ndlp) { 6052 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6053 "node get: did:x%x flg:x%x refcnt:x%x", 6054 ndlp->nlp_DID, ndlp->nlp_flag, 6055 kref_read(&ndlp->kref)); 6056 /* The check of ndlp usage to prevent incrementing the 6057 * ndlp reference count that is in the process of being 6058 * released. 6059 */ 6060 phba = ndlp->phba; 6061 spin_lock_irqsave(&phba->ndlp_lock, flags); 6062 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6063 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6064 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6065 "0276 lpfc_nlp_get: ndlp:x%p " 6066 "usgmap:x%x refcnt:%d\n", 6067 (void *)ndlp, ndlp->nlp_usg_map, 6068 kref_read(&ndlp->kref)); 6069 return NULL; 6070 } else 6071 kref_get(&ndlp->kref); 6072 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6073 } 6074 return ndlp; 6075 } 6076 6077 /* This routine decrements the reference count for a ndlp structure. If the 6078 * count goes to 0, this indicates the the associated nodelist should be 6079 * freed. Returning 1 indicates the ndlp resource has been released; on the 6080 * other hand, returning 0 indicates the ndlp resource has not been released 6081 * yet. 6082 */ 6083 int 6084 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6085 { 6086 struct lpfc_hba *phba; 6087 unsigned long flags; 6088 6089 if (!ndlp) 6090 return 1; 6091 6092 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6093 "node put: did:x%x flg:x%x refcnt:x%x", 6094 ndlp->nlp_DID, ndlp->nlp_flag, 6095 kref_read(&ndlp->kref)); 6096 phba = ndlp->phba; 6097 spin_lock_irqsave(&phba->ndlp_lock, flags); 6098 /* Check the ndlp memory free acknowledge flag to avoid the 6099 * possible race condition that kref_put got invoked again 6100 * after previous one has done ndlp memory free. 6101 */ 6102 if (NLP_CHK_FREE_ACK(ndlp)) { 6103 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6104 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6105 "0274 lpfc_nlp_put: ndlp:x%p " 6106 "usgmap:x%x refcnt:%d\n", 6107 (void *)ndlp, ndlp->nlp_usg_map, 6108 kref_read(&ndlp->kref)); 6109 return 1; 6110 } 6111 /* Check the ndlp inactivate log flag to avoid the possible 6112 * race condition that kref_put got invoked again after ndlp 6113 * is already in inactivating state. 6114 */ 6115 if (NLP_CHK_IACT_REQ(ndlp)) { 6116 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6117 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6118 "0275 lpfc_nlp_put: ndlp:x%p " 6119 "usgmap:x%x refcnt:%d\n", 6120 (void *)ndlp, ndlp->nlp_usg_map, 6121 kref_read(&ndlp->kref)); 6122 return 1; 6123 } 6124 /* For last put, mark the ndlp usage flags to make sure no 6125 * other kref_get and kref_put on the same ndlp shall get 6126 * in between the process when the final kref_put has been 6127 * invoked on this ndlp. 6128 */ 6129 if (kref_read(&ndlp->kref) == 1) { 6130 /* Indicate ndlp is put to inactive state. */ 6131 NLP_SET_IACT_REQ(ndlp); 6132 /* Acknowledge ndlp memory free has been seen. */ 6133 if (NLP_CHK_FREE_REQ(ndlp)) 6134 NLP_SET_FREE_ACK(ndlp); 6135 } 6136 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6137 /* Note, the kref_put returns 1 when decrementing a reference 6138 * count that was 1, it invokes the release callback function, 6139 * but it still left the reference count as 1 (not actually 6140 * performs the last decrementation). Otherwise, it actually 6141 * decrements the reference count and returns 0. 6142 */ 6143 return kref_put(&ndlp->kref, lpfc_nlp_release); 6144 } 6145 6146 /* This routine free's the specified nodelist if it is not in use 6147 * by any other discovery thread. This routine returns 1 if the 6148 * ndlp has been freed. A return value of 0 indicates the ndlp is 6149 * not yet been released. 6150 */ 6151 int 6152 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6153 { 6154 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6155 "node not used: did:x%x flg:x%x refcnt:x%x", 6156 ndlp->nlp_DID, ndlp->nlp_flag, 6157 kref_read(&ndlp->kref)); 6158 if (kref_read(&ndlp->kref) == 1) 6159 if (lpfc_nlp_put(ndlp)) 6160 return 1; 6161 return 0; 6162 } 6163 6164 /** 6165 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6166 * @phba: Pointer to hba context object. 6167 * 6168 * This function iterate through all FC nodes associated 6169 * will all vports to check if there is any node with 6170 * fc_rports associated with it. If there is an fc_rport 6171 * associated with the node, then the node is either in 6172 * discovered state or its devloss_timer is pending. 6173 */ 6174 static int 6175 lpfc_fcf_inuse(struct lpfc_hba *phba) 6176 { 6177 struct lpfc_vport **vports; 6178 int i, ret = 0; 6179 struct lpfc_nodelist *ndlp; 6180 struct Scsi_Host *shost; 6181 6182 vports = lpfc_create_vport_work_array(phba); 6183 6184 /* If driver cannot allocate memory, indicate fcf is in use */ 6185 if (!vports) 6186 return 1; 6187 6188 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6189 shost = lpfc_shost_from_vport(vports[i]); 6190 spin_lock_irq(shost->host_lock); 6191 /* 6192 * IF the CVL_RCVD bit is not set then we have sent the 6193 * flogi. 6194 * If dev_loss fires while we are waiting we do not want to 6195 * unreg the fcf. 6196 */ 6197 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6198 spin_unlock_irq(shost->host_lock); 6199 ret = 1; 6200 goto out; 6201 } 6202 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6203 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6204 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6205 ret = 1; 6206 spin_unlock_irq(shost->host_lock); 6207 goto out; 6208 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6209 ret = 1; 6210 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6211 "2624 RPI %x DID %x flag %x " 6212 "still logged in\n", 6213 ndlp->nlp_rpi, ndlp->nlp_DID, 6214 ndlp->nlp_flag); 6215 } 6216 } 6217 spin_unlock_irq(shost->host_lock); 6218 } 6219 out: 6220 lpfc_destroy_vport_work_array(phba, vports); 6221 return ret; 6222 } 6223 6224 /** 6225 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6226 * @phba: Pointer to hba context object. 6227 * @mboxq: Pointer to mailbox object. 6228 * 6229 * This function frees memory associated with the mailbox command. 6230 */ 6231 void 6232 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6233 { 6234 struct lpfc_vport *vport = mboxq->vport; 6235 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6236 6237 if (mboxq->u.mb.mbxStatus) { 6238 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6239 "2555 UNREG_VFI mbxStatus error x%x " 6240 "HBA state x%x\n", 6241 mboxq->u.mb.mbxStatus, vport->port_state); 6242 } 6243 spin_lock_irq(shost->host_lock); 6244 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6245 spin_unlock_irq(shost->host_lock); 6246 mempool_free(mboxq, phba->mbox_mem_pool); 6247 return; 6248 } 6249 6250 /** 6251 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6252 * @phba: Pointer to hba context object. 6253 * @mboxq: Pointer to mailbox object. 6254 * 6255 * This function frees memory associated with the mailbox command. 6256 */ 6257 static void 6258 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6259 { 6260 struct lpfc_vport *vport = mboxq->vport; 6261 6262 if (mboxq->u.mb.mbxStatus) { 6263 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6264 "2550 UNREG_FCFI mbxStatus error x%x " 6265 "HBA state x%x\n", 6266 mboxq->u.mb.mbxStatus, vport->port_state); 6267 } 6268 mempool_free(mboxq, phba->mbox_mem_pool); 6269 return; 6270 } 6271 6272 /** 6273 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6274 * @phba: Pointer to hba context object. 6275 * 6276 * This function prepare the HBA for unregistering the currently registered 6277 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6278 * VFIs. 6279 */ 6280 int 6281 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6282 { 6283 struct lpfc_vport **vports; 6284 struct lpfc_nodelist *ndlp; 6285 struct Scsi_Host *shost; 6286 int i = 0, rc; 6287 6288 /* Unregister RPIs */ 6289 if (lpfc_fcf_inuse(phba)) 6290 lpfc_unreg_hba_rpis(phba); 6291 6292 /* At this point, all discovery is aborted */ 6293 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6294 6295 /* Unregister VPIs */ 6296 vports = lpfc_create_vport_work_array(phba); 6297 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6298 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6299 /* Stop FLOGI/FDISC retries */ 6300 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6301 if (ndlp) 6302 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6303 lpfc_cleanup_pending_mbox(vports[i]); 6304 if (phba->sli_rev == LPFC_SLI_REV4) 6305 lpfc_sli4_unreg_all_rpis(vports[i]); 6306 lpfc_mbx_unreg_vpi(vports[i]); 6307 shost = lpfc_shost_from_vport(vports[i]); 6308 spin_lock_irq(shost->host_lock); 6309 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6310 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6311 spin_unlock_irq(shost->host_lock); 6312 } 6313 lpfc_destroy_vport_work_array(phba, vports); 6314 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6315 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6316 if (ndlp) 6317 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6318 lpfc_cleanup_pending_mbox(phba->pport); 6319 if (phba->sli_rev == LPFC_SLI_REV4) 6320 lpfc_sli4_unreg_all_rpis(phba->pport); 6321 lpfc_mbx_unreg_vpi(phba->pport); 6322 shost = lpfc_shost_from_vport(phba->pport); 6323 spin_lock_irq(shost->host_lock); 6324 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6325 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6326 spin_unlock_irq(shost->host_lock); 6327 } 6328 6329 /* Cleanup any outstanding ELS commands */ 6330 lpfc_els_flush_all_cmd(phba); 6331 6332 /* Unregister the physical port VFI */ 6333 rc = lpfc_issue_unreg_vfi(phba->pport); 6334 return rc; 6335 } 6336 6337 /** 6338 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6339 * @phba: Pointer to hba context object. 6340 * 6341 * This function issues synchronous unregister FCF mailbox command to HBA to 6342 * unregister the currently registered FCF record. The driver does not reset 6343 * the driver FCF usage state flags. 6344 * 6345 * Return 0 if successfully issued, none-zero otherwise. 6346 */ 6347 int 6348 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6349 { 6350 LPFC_MBOXQ_t *mbox; 6351 int rc; 6352 6353 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6354 if (!mbox) { 6355 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6356 "2551 UNREG_FCFI mbox allocation failed" 6357 "HBA state x%x\n", phba->pport->port_state); 6358 return -ENOMEM; 6359 } 6360 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6361 mbox->vport = phba->pport; 6362 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6363 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6364 6365 if (rc == MBX_NOT_FINISHED) { 6366 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6367 "2552 Unregister FCFI command failed rc x%x " 6368 "HBA state x%x\n", 6369 rc, phba->pport->port_state); 6370 return -EINVAL; 6371 } 6372 return 0; 6373 } 6374 6375 /** 6376 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6377 * @phba: Pointer to hba context object. 6378 * 6379 * This function unregisters the currently reigstered FCF. This function 6380 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6381 */ 6382 void 6383 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6384 { 6385 int rc; 6386 6387 /* Preparation for unregistering fcf */ 6388 rc = lpfc_unregister_fcf_prep(phba); 6389 if (rc) { 6390 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6391 "2748 Failed to prepare for unregistering " 6392 "HBA's FCF record: rc=%d\n", rc); 6393 return; 6394 } 6395 6396 /* Now, unregister FCF record and reset HBA FCF state */ 6397 rc = lpfc_sli4_unregister_fcf(phba); 6398 if (rc) 6399 return; 6400 /* Reset HBA FCF states after successful unregister FCF */ 6401 phba->fcf.fcf_flag = 0; 6402 phba->fcf.current_rec.flag = 0; 6403 6404 /* 6405 * If driver is not unloading, check if there is any other 6406 * FCF record that can be used for discovery. 6407 */ 6408 if ((phba->pport->load_flag & FC_UNLOADING) || 6409 (phba->link_state < LPFC_LINK_UP)) 6410 return; 6411 6412 /* This is considered as the initial FCF discovery scan */ 6413 spin_lock_irq(&phba->hbalock); 6414 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6415 spin_unlock_irq(&phba->hbalock); 6416 6417 /* Reset FCF roundrobin bmask for new discovery */ 6418 lpfc_sli4_clear_fcf_rr_bmask(phba); 6419 6420 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6421 6422 if (rc) { 6423 spin_lock_irq(&phba->hbalock); 6424 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6425 spin_unlock_irq(&phba->hbalock); 6426 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6427 "2553 lpfc_unregister_unused_fcf failed " 6428 "to read FCF record HBA state x%x\n", 6429 phba->pport->port_state); 6430 } 6431 } 6432 6433 /** 6434 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6435 * @phba: Pointer to hba context object. 6436 * 6437 * This function just unregisters the currently reigstered FCF. It does not 6438 * try to find another FCF for discovery. 6439 */ 6440 void 6441 lpfc_unregister_fcf(struct lpfc_hba *phba) 6442 { 6443 int rc; 6444 6445 /* Preparation for unregistering fcf */ 6446 rc = lpfc_unregister_fcf_prep(phba); 6447 if (rc) { 6448 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6449 "2749 Failed to prepare for unregistering " 6450 "HBA's FCF record: rc=%d\n", rc); 6451 return; 6452 } 6453 6454 /* Now, unregister FCF record and reset HBA FCF state */ 6455 rc = lpfc_sli4_unregister_fcf(phba); 6456 if (rc) 6457 return; 6458 /* Set proper HBA FCF states after successful unregister FCF */ 6459 spin_lock_irq(&phba->hbalock); 6460 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6461 spin_unlock_irq(&phba->hbalock); 6462 } 6463 6464 /** 6465 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6466 * @phba: Pointer to hba context object. 6467 * 6468 * This function check if there are any connected remote port for the FCF and 6469 * if all the devices are disconnected, this function unregister FCFI. 6470 * This function also tries to use another FCF for discovery. 6471 */ 6472 void 6473 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6474 { 6475 /* 6476 * If HBA is not running in FIP mode, if HBA does not support 6477 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6478 * registered, do nothing. 6479 */ 6480 spin_lock_irq(&phba->hbalock); 6481 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6482 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6483 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6484 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6485 (phba->pport->port_state == LPFC_FLOGI)) { 6486 spin_unlock_irq(&phba->hbalock); 6487 return; 6488 } 6489 spin_unlock_irq(&phba->hbalock); 6490 6491 if (lpfc_fcf_inuse(phba)) 6492 return; 6493 6494 lpfc_unregister_fcf_rescan(phba); 6495 } 6496 6497 /** 6498 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6499 * @phba: Pointer to hba context object. 6500 * @buff: Buffer containing the FCF connection table as in the config 6501 * region. 6502 * This function create driver data structure for the FCF connection 6503 * record table read from config region 23. 6504 */ 6505 static void 6506 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6507 uint8_t *buff) 6508 { 6509 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6510 struct lpfc_fcf_conn_hdr *conn_hdr; 6511 struct lpfc_fcf_conn_rec *conn_rec; 6512 uint32_t record_count; 6513 int i; 6514 6515 /* Free the current connect table */ 6516 list_for_each_entry_safe(conn_entry, next_conn_entry, 6517 &phba->fcf_conn_rec_list, list) { 6518 list_del_init(&conn_entry->list); 6519 kfree(conn_entry); 6520 } 6521 6522 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6523 record_count = conn_hdr->length * sizeof(uint32_t)/ 6524 sizeof(struct lpfc_fcf_conn_rec); 6525 6526 conn_rec = (struct lpfc_fcf_conn_rec *) 6527 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6528 6529 for (i = 0; i < record_count; i++) { 6530 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6531 continue; 6532 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6533 GFP_KERNEL); 6534 if (!conn_entry) { 6535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6536 "2566 Failed to allocate connection" 6537 " table entry\n"); 6538 return; 6539 } 6540 6541 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6542 sizeof(struct lpfc_fcf_conn_rec)); 6543 list_add_tail(&conn_entry->list, 6544 &phba->fcf_conn_rec_list); 6545 } 6546 6547 if (!list_empty(&phba->fcf_conn_rec_list)) { 6548 i = 0; 6549 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6550 list) { 6551 conn_rec = &conn_entry->conn_rec; 6552 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6553 "3345 FCF connection list rec[%02d]: " 6554 "flags:x%04x, vtag:x%04x, " 6555 "fabric_name:x%02x:%02x:%02x:%02x:" 6556 "%02x:%02x:%02x:%02x, " 6557 "switch_name:x%02x:%02x:%02x:%02x:" 6558 "%02x:%02x:%02x:%02x\n", i++, 6559 conn_rec->flags, conn_rec->vlan_tag, 6560 conn_rec->fabric_name[0], 6561 conn_rec->fabric_name[1], 6562 conn_rec->fabric_name[2], 6563 conn_rec->fabric_name[3], 6564 conn_rec->fabric_name[4], 6565 conn_rec->fabric_name[5], 6566 conn_rec->fabric_name[6], 6567 conn_rec->fabric_name[7], 6568 conn_rec->switch_name[0], 6569 conn_rec->switch_name[1], 6570 conn_rec->switch_name[2], 6571 conn_rec->switch_name[3], 6572 conn_rec->switch_name[4], 6573 conn_rec->switch_name[5], 6574 conn_rec->switch_name[6], 6575 conn_rec->switch_name[7]); 6576 } 6577 } 6578 } 6579 6580 /** 6581 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6582 * @phba: Pointer to hba context object. 6583 * @buff: Buffer containing the FCoE parameter data structure. 6584 * 6585 * This function update driver data structure with config 6586 * parameters read from config region 23. 6587 */ 6588 static void 6589 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6590 uint8_t *buff) 6591 { 6592 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6593 struct lpfc_fcoe_params *fcoe_param; 6594 6595 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6596 buff; 6597 fcoe_param = (struct lpfc_fcoe_params *) 6598 (buff + sizeof(struct lpfc_fip_param_hdr)); 6599 6600 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6601 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6602 return; 6603 6604 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6605 phba->valid_vlan = 1; 6606 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6607 0xFFF; 6608 } 6609 6610 phba->fc_map[0] = fcoe_param->fc_map[0]; 6611 phba->fc_map[1] = fcoe_param->fc_map[1]; 6612 phba->fc_map[2] = fcoe_param->fc_map[2]; 6613 return; 6614 } 6615 6616 /** 6617 * lpfc_get_rec_conf23 - Get a record type in config region data. 6618 * @buff: Buffer containing config region 23 data. 6619 * @size: Size of the data buffer. 6620 * @rec_type: Record type to be searched. 6621 * 6622 * This function searches config region data to find the beginning 6623 * of the record specified by record_type. If record found, this 6624 * function return pointer to the record else return NULL. 6625 */ 6626 static uint8_t * 6627 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6628 { 6629 uint32_t offset = 0, rec_length; 6630 6631 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6632 (size < sizeof(uint32_t))) 6633 return NULL; 6634 6635 rec_length = buff[offset + 1]; 6636 6637 /* 6638 * One TLV record has one word header and number of data words 6639 * specified in the rec_length field of the record header. 6640 */ 6641 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6642 <= size) { 6643 if (buff[offset] == rec_type) 6644 return &buff[offset]; 6645 6646 if (buff[offset] == LPFC_REGION23_LAST_REC) 6647 return NULL; 6648 6649 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6650 rec_length = buff[offset + 1]; 6651 } 6652 return NULL; 6653 } 6654 6655 /** 6656 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6657 * @phba: Pointer to lpfc_hba data structure. 6658 * @buff: Buffer containing config region 23 data. 6659 * @size: Size of the data buffer. 6660 * 6661 * This function parses the FCoE config parameters in config region 23 and 6662 * populate driver data structure with the parameters. 6663 */ 6664 void 6665 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6666 uint8_t *buff, 6667 uint32_t size) 6668 { 6669 uint32_t offset = 0; 6670 uint8_t *rec_ptr; 6671 6672 /* 6673 * If data size is less than 2 words signature and version cannot be 6674 * verified. 6675 */ 6676 if (size < 2*sizeof(uint32_t)) 6677 return; 6678 6679 /* Check the region signature first */ 6680 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6682 "2567 Config region 23 has bad signature\n"); 6683 return; 6684 } 6685 6686 offset += 4; 6687 6688 /* Check the data structure version */ 6689 if (buff[offset] != LPFC_REGION23_VERSION) { 6690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6691 "2568 Config region 23 has bad version\n"); 6692 return; 6693 } 6694 offset += 4; 6695 6696 /* Read FCoE param record */ 6697 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6698 size - offset, FCOE_PARAM_TYPE); 6699 if (rec_ptr) 6700 lpfc_read_fcoe_param(phba, rec_ptr); 6701 6702 /* Read FCF connection table */ 6703 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6704 size - offset, FCOE_CONN_TBL_TYPE); 6705 if (rec_ptr) 6706 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6707 6708 } 6709