1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 #include <scsi/fc/fc_fs.h> 37 38 #include <linux/nvme-fc-driver.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_crtn.h" 51 #include "lpfc_vport.h" 52 #include "lpfc_debugfs.h" 53 54 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 55 static uint8_t lpfcAlpaArray[] = { 56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 69 }; 70 71 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 72 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 74 static int lpfc_fcf_inuse(struct lpfc_hba *); 75 76 void 77 lpfc_terminate_rport_io(struct fc_rport *rport) 78 { 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105 } 106 107 /* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110 void 111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112 { 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 122 rdata = rport->dd_data; 123 ndlp = rdata->pnode; 124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 125 return; 126 127 vport = ndlp->vport; 128 phba = vport->phba; 129 130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 131 "rport devlosscb: sid:x%x did:x%x flg:x%x", 132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 133 134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 137 138 /* Don't defer this if we are in the process of deleting the vport 139 * or unloading the driver. The unload will cleanup the node 140 * appropriately we just need to cleanup the ndlp rport info here. 141 */ 142 if (vport->load_flag & FC_UNLOADING) { 143 put_node = rdata->pnode != NULL; 144 put_rport = ndlp->rport != NULL; 145 rdata->pnode = NULL; 146 ndlp->rport = NULL; 147 if (put_node) 148 lpfc_nlp_put(ndlp); 149 if (put_rport) 150 put_device(&rport->dev); 151 return; 152 } 153 154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 155 return; 156 157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 159 "6789 rport name %llx != node port name %llx", 160 rport->port_name, 161 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 162 163 evtp = &ndlp->dev_loss_evt; 164 165 if (!list_empty(&evtp->evt_listp)) { 166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 167 "6790 rport name %llx dev_loss_evt pending", 168 rport->port_name); 169 return; 170 } 171 172 shost = lpfc_shost_from_vport(vport); 173 spin_lock_irq(shost->host_lock); 174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 175 spin_unlock_irq(shost->host_lock); 176 177 /* We need to hold the node by incrementing the reference 178 * count until this queued work is done 179 */ 180 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 181 182 spin_lock_irq(&phba->hbalock); 183 if (evtp->evt_arg1) { 184 evtp->evt = LPFC_EVT_DEV_LOSS; 185 list_add_tail(&evtp->evt_listp, &phba->work_list); 186 lpfc_worker_wake_up(phba); 187 } 188 spin_unlock_irq(&phba->hbalock); 189 190 return; 191 } 192 193 /** 194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 195 * @ndlp: Pointer to remote node object. 196 * 197 * This function is called from the worker thread when devloss timeout timer 198 * expires. For SLI4 host, this routine shall return 1 when at lease one 199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 200 * routine shall return 0 when there is no remote node is still in use of FCF 201 * when devloss timeout happened to this @ndlp. 202 **/ 203 static int 204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 205 { 206 struct lpfc_rport_data *rdata; 207 struct fc_rport *rport; 208 struct lpfc_vport *vport; 209 struct lpfc_hba *phba; 210 struct Scsi_Host *shost; 211 uint8_t *name; 212 int put_node; 213 int warn_on = 0; 214 int fcf_inuse = 0; 215 216 rport = ndlp->rport; 217 vport = ndlp->vport; 218 shost = lpfc_shost_from_vport(vport); 219 220 spin_lock_irq(shost->host_lock); 221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 222 spin_unlock_irq(shost->host_lock); 223 224 if (!rport) 225 return fcf_inuse; 226 227 name = (uint8_t *) &ndlp->nlp_portname; 228 phba = vport->phba; 229 230 if (phba->sli_rev == LPFC_SLI_REV4) 231 fcf_inuse = lpfc_fcf_inuse(phba); 232 233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 234 "rport devlosstmo:did:x%x type:x%x id:x%x", 235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 236 237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 240 241 /* 242 * lpfc_nlp_remove if reached with dangling rport drops the 243 * reference. To make sure that does not happen clear rport 244 * pointer in ndlp before lpfc_nlp_put. 245 */ 246 rdata = rport->dd_data; 247 248 /* Don't defer this if we are in the process of deleting the vport 249 * or unloading the driver. The unload will cleanup the node 250 * appropriately we just need to cleanup the ndlp rport info here. 251 */ 252 if (vport->load_flag & FC_UNLOADING) { 253 if (ndlp->nlp_sid != NLP_NO_SID) { 254 /* flush the target */ 255 lpfc_sli_abort_iocb(vport, 256 &phba->sli.sli3_ring[LPFC_FCP_RING], 257 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 258 } 259 put_node = rdata->pnode != NULL; 260 rdata->pnode = NULL; 261 ndlp->rport = NULL; 262 if (put_node) 263 lpfc_nlp_put(ndlp); 264 put_device(&rport->dev); 265 266 return fcf_inuse; 267 } 268 269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 271 "0284 Devloss timeout Ignored on " 272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 273 "NPort x%x\n", 274 *name, *(name+1), *(name+2), *(name+3), 275 *(name+4), *(name+5), *(name+6), *(name+7), 276 ndlp->nlp_DID); 277 return fcf_inuse; 278 } 279 280 put_node = rdata->pnode != NULL; 281 rdata->pnode = NULL; 282 ndlp->rport = NULL; 283 if (put_node) 284 lpfc_nlp_put(ndlp); 285 put_device(&rport->dev); 286 287 if (ndlp->nlp_type & NLP_FABRIC) 288 return fcf_inuse; 289 290 if (ndlp->nlp_sid != NLP_NO_SID) { 291 warn_on = 1; 292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 293 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 294 } 295 296 if (warn_on) { 297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 298 "0203 Devloss timeout on " 299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 300 "NPort x%06x Data: x%x x%x x%x\n", 301 *name, *(name+1), *(name+2), *(name+3), 302 *(name+4), *(name+5), *(name+6), *(name+7), 303 ndlp->nlp_DID, ndlp->nlp_flag, 304 ndlp->nlp_state, ndlp->nlp_rpi); 305 } else { 306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 307 "0204 Devloss timeout on " 308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 309 "NPort x%06x Data: x%x x%x x%x\n", 310 *name, *(name+1), *(name+2), *(name+3), 311 *(name+4), *(name+5), *(name+6), *(name+7), 312 ndlp->nlp_DID, ndlp->nlp_flag, 313 ndlp->nlp_state, ndlp->nlp_rpi); 314 } 315 316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 322 323 return fcf_inuse; 324 } 325 326 /** 327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 328 * @phba: Pointer to hba context object. 329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 330 * @nlp_did: remote node identifer with devloss timeout. 331 * 332 * This function is called from the worker thread after invoking devloss 333 * timeout handler and releasing the reference count for the ndlp with 334 * which the devloss timeout was handled for SLI4 host. For the devloss 335 * timeout of the last remote node which had been in use of FCF, when this 336 * routine is invoked, it shall be guaranteed that none of the remote are 337 * in-use of FCF. When devloss timeout to the last remote using the FCF, 338 * if the FIP engine is neither in FCF table scan process nor roundrobin 339 * failover process, the in-use FCF shall be unregistered. If the FIP 340 * engine is in FCF discovery process, the devloss timeout state shall 341 * be set for either the FCF table scan process or roundrobin failover 342 * process to unregister the in-use FCF. 343 **/ 344 static void 345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 346 uint32_t nlp_did) 347 { 348 /* If devloss timeout happened to a remote node when FCF had no 349 * longer been in-use, do nothing. 350 */ 351 if (!fcf_inuse) 352 return; 353 354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 355 spin_lock_irq(&phba->hbalock); 356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 357 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 358 spin_unlock_irq(&phba->hbalock); 359 return; 360 } 361 phba->hba_flag |= HBA_DEVLOSS_TMO; 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2847 Last remote node (x%x) using " 364 "FCF devloss tmo\n", nlp_did); 365 } 366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 367 spin_unlock_irq(&phba->hbalock); 368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 369 "2868 Devloss tmo to FCF rediscovery " 370 "in progress\n"); 371 return; 372 } 373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 374 spin_unlock_irq(&phba->hbalock); 375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 376 "2869 Devloss tmo to idle FIP engine, " 377 "unreg in-use FCF and rescan.\n"); 378 /* Unregister in-use FCF and rescan */ 379 lpfc_unregister_fcf_rescan(phba); 380 return; 381 } 382 spin_unlock_irq(&phba->hbalock); 383 if (phba->hba_flag & FCF_TS_INPROG) 384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 385 "2870 FCF table scan in progress\n"); 386 if (phba->hba_flag & FCF_RR_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2871 FLOGI roundrobin FCF failover " 389 "in progress\n"); 390 } 391 lpfc_unregister_unused_fcf(phba); 392 } 393 394 /** 395 * lpfc_alloc_fast_evt - Allocates data structure for posting event 396 * @phba: Pointer to hba context object. 397 * 398 * This function is called from the functions which need to post 399 * events from interrupt context. This function allocates data 400 * structure required for posting event. It also keeps track of 401 * number of events pending and prevent event storm when there are 402 * too many events. 403 **/ 404 struct lpfc_fast_path_event * 405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 406 struct lpfc_fast_path_event *ret; 407 408 /* If there are lot of fast event do not exhaust memory due to this */ 409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 410 return NULL; 411 412 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 413 GFP_ATOMIC); 414 if (ret) { 415 atomic_inc(&phba->fast_event_count); 416 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 418 } 419 return ret; 420 } 421 422 /** 423 * lpfc_free_fast_evt - Frees event data structure 424 * @phba: Pointer to hba context object. 425 * @evt: Event object which need to be freed. 426 * 427 * This function frees the data structure required for posting 428 * events. 429 **/ 430 void 431 lpfc_free_fast_evt(struct lpfc_hba *phba, 432 struct lpfc_fast_path_event *evt) { 433 434 atomic_dec(&phba->fast_event_count); 435 kfree(evt); 436 } 437 438 /** 439 * lpfc_send_fastpath_evt - Posts events generated from fast path 440 * @phba: Pointer to hba context object. 441 * @evtp: Event data structure. 442 * 443 * This function is called from worker thread, when the interrupt 444 * context need to post an event. This function posts the event 445 * to fc transport netlink interface. 446 **/ 447 static void 448 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 449 struct lpfc_work_evt *evtp) 450 { 451 unsigned long evt_category, evt_sub_category; 452 struct lpfc_fast_path_event *fast_evt_data; 453 char *evt_data; 454 uint32_t evt_data_size; 455 struct Scsi_Host *shost; 456 457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 458 work_evt); 459 460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 461 evt_sub_category = (unsigned long) fast_evt_data->un. 462 fabric_evt.subcategory; 463 shost = lpfc_shost_from_vport(fast_evt_data->vport); 464 if (evt_category == FC_REG_FABRIC_EVENT) { 465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 466 evt_data = (char *) &fast_evt_data->un.read_check_error; 467 evt_data_size = sizeof(fast_evt_data->un. 468 read_check_error); 469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 471 evt_data = (char *) &fast_evt_data->un.fabric_evt; 472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 473 } else { 474 lpfc_free_fast_evt(phba, fast_evt_data); 475 return; 476 } 477 } else if (evt_category == FC_REG_SCSI_EVENT) { 478 switch (evt_sub_category) { 479 case LPFC_EVENT_QFULL: 480 case LPFC_EVENT_DEVBSY: 481 evt_data = (char *) &fast_evt_data->un.scsi_evt; 482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 483 break; 484 case LPFC_EVENT_CHECK_COND: 485 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 check_cond_evt); 488 break; 489 case LPFC_EVENT_VARQUEDEPTH: 490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 491 evt_data_size = sizeof(fast_evt_data->un. 492 queue_depth_evt); 493 break; 494 default: 495 lpfc_free_fast_evt(phba, fast_evt_data); 496 return; 497 } 498 } else { 499 lpfc_free_fast_evt(phba, fast_evt_data); 500 return; 501 } 502 503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 504 fc_host_post_vendor_event(shost, 505 fc_get_event_number(), 506 evt_data_size, 507 evt_data, 508 LPFC_NL_VENDOR_ID); 509 510 lpfc_free_fast_evt(phba, fast_evt_data); 511 return; 512 } 513 514 static void 515 lpfc_work_list_done(struct lpfc_hba *phba) 516 { 517 struct lpfc_work_evt *evtp = NULL; 518 struct lpfc_nodelist *ndlp; 519 int free_evt; 520 int fcf_inuse; 521 uint32_t nlp_did; 522 523 spin_lock_irq(&phba->hbalock); 524 while (!list_empty(&phba->work_list)) { 525 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 526 evt_listp); 527 spin_unlock_irq(&phba->hbalock); 528 free_evt = 1; 529 switch (evtp->evt) { 530 case LPFC_EVT_ELS_RETRY: 531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 532 lpfc_els_retry_delay_handler(ndlp); 533 free_evt = 0; /* evt is part of ndlp */ 534 /* decrement the node reference count held 535 * for this queued work 536 */ 537 lpfc_nlp_put(ndlp); 538 break; 539 case LPFC_EVT_DEV_LOSS: 540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 542 free_evt = 0; 543 /* decrement the node reference count held for 544 * this queued work 545 */ 546 nlp_did = ndlp->nlp_DID; 547 lpfc_nlp_put(ndlp); 548 if (phba->sli_rev == LPFC_SLI_REV4) 549 lpfc_sli4_post_dev_loss_tmo_handler(phba, 550 fcf_inuse, 551 nlp_did); 552 break; 553 case LPFC_EVT_ONLINE: 554 if (phba->link_state < LPFC_LINK_DOWN) 555 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 556 else 557 *(int *) (evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE_PREP: 561 if (phba->link_state >= LPFC_LINK_DOWN) 562 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 563 *(int *)(evtp->evt_arg1) = 0; 564 complete((struct completion *)(evtp->evt_arg2)); 565 break; 566 case LPFC_EVT_OFFLINE: 567 lpfc_offline(phba); 568 lpfc_sli_brdrestart(phba); 569 *(int *)(evtp->evt_arg1) = 570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 571 lpfc_unblock_mgmt_io(phba); 572 complete((struct completion *)(evtp->evt_arg2)); 573 break; 574 case LPFC_EVT_WARM_START: 575 lpfc_offline(phba); 576 lpfc_reset_barrier(phba); 577 lpfc_sli_brdreset(phba); 578 lpfc_hba_down_post(phba); 579 *(int *)(evtp->evt_arg1) = 580 lpfc_sli_brdready(phba, HS_MBRDY); 581 lpfc_unblock_mgmt_io(phba); 582 complete((struct completion *)(evtp->evt_arg2)); 583 break; 584 case LPFC_EVT_KILL: 585 lpfc_offline(phba); 586 *(int *)(evtp->evt_arg1) 587 = (phba->pport->stopped) 588 ? 0 : lpfc_sli_brdkill(phba); 589 lpfc_unblock_mgmt_io(phba); 590 complete((struct completion *)(evtp->evt_arg2)); 591 break; 592 case LPFC_EVT_FASTPATH_MGMT_EVT: 593 lpfc_send_fastpath_evt(phba, evtp); 594 free_evt = 0; 595 break; 596 case LPFC_EVT_RESET_HBA: 597 if (!(phba->pport->load_flag & FC_UNLOADING)) 598 lpfc_reset_hba(phba); 599 break; 600 } 601 if (free_evt) 602 kfree(evtp); 603 spin_lock_irq(&phba->hbalock); 604 } 605 spin_unlock_irq(&phba->hbalock); 606 607 } 608 609 static void 610 lpfc_work_done(struct lpfc_hba *phba) 611 { 612 struct lpfc_sli_ring *pring; 613 uint32_t ha_copy, status, control, work_port_events; 614 struct lpfc_vport **vports; 615 struct lpfc_vport *vport; 616 int i; 617 618 spin_lock_irq(&phba->hbalock); 619 ha_copy = phba->work_ha; 620 phba->work_ha = 0; 621 spin_unlock_irq(&phba->hbalock); 622 623 /* First, try to post the next mailbox command to SLI4 device */ 624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 625 lpfc_sli4_post_async_mbox(phba); 626 627 if (ha_copy & HA_ERATT) 628 /* Handle the error attention event */ 629 lpfc_handle_eratt(phba); 630 631 if (ha_copy & HA_MBATT) 632 lpfc_sli_handle_mb_event(phba); 633 634 if (ha_copy & HA_LATT) 635 lpfc_handle_latt(phba); 636 637 /* Process SLI4 events */ 638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 639 if (phba->hba_flag & HBA_RRQ_ACTIVE) 640 lpfc_handle_rrq_active(phba); 641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 642 lpfc_sli4_fcp_xri_abort_event_proc(phba); 643 if (phba->hba_flag & 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 /* Set the lpfc data pending flag */ 700 set_bit(LPFC_DATA_READY, &phba->data_flags); 701 } else { 702 if (phba->link_state >= LPFC_LINK_UP || 703 phba->link_flag & LS_MDS_LOOPBACK) { 704 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 705 lpfc_sli_handle_slow_ring_event(phba, pring, 706 (status & 707 HA_RXMASK)); 708 } 709 } 710 if ((phba->sli_rev == LPFC_SLI_REV4) && 711 (!list_empty(&pring->txq))) 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 if (!NLP_CHK_NODE_ACT(ndlp)) 962 continue; 963 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 964 continue; 965 if (ndlp->nlp_type & NLP_FABRIC) { 966 /* On Linkup its safe to clean up the ndlp 967 * from Fabric connections. 968 */ 969 if (ndlp->nlp_DID != Fabric_DID) 970 lpfc_unreg_rpi(vport, ndlp); 971 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 972 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 973 /* Fail outstanding IO now since device is 974 * marked for PLOGI. 975 */ 976 lpfc_unreg_rpi(vport, ndlp); 977 } 978 } 979 } 980 981 static void 982 lpfc_linkup_port(struct lpfc_vport *vport) 983 { 984 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 985 struct lpfc_hba *phba = vport->phba; 986 987 if ((vport->load_flag & FC_UNLOADING) != 0) 988 return; 989 990 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 991 "Link Up: top:x%x speed:x%x flg:x%x", 992 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 993 994 /* If NPIV is not enabled, only bring the physical port up */ 995 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 996 (vport != phba->pport)) 997 return; 998 999 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1000 fc_host_post_event(shost, fc_get_event_number(), 1001 FCH_EVT_LINKUP, 0); 1002 1003 spin_lock_irq(shost->host_lock); 1004 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1005 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1006 vport->fc_flag |= FC_NDISC_ACTIVE; 1007 vport->fc_ns_retry = 0; 1008 spin_unlock_irq(shost->host_lock); 1009 1010 if (vport->fc_flag & FC_LBIT) 1011 lpfc_linkup_cleanup_nodes(vport); 1012 1013 } 1014 1015 static int 1016 lpfc_linkup(struct lpfc_hba *phba) 1017 { 1018 struct lpfc_vport **vports; 1019 int i; 1020 1021 phba->link_state = LPFC_LINK_UP; 1022 1023 /* Unblock fabric iocbs if they are blocked */ 1024 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1025 del_timer_sync(&phba->fabric_block_timer); 1026 1027 vports = lpfc_create_vport_work_array(phba); 1028 if (vports != NULL) 1029 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1030 lpfc_linkup_port(vports[i]); 1031 lpfc_destroy_vport_work_array(phba, vports); 1032 1033 return 0; 1034 } 1035 1036 /* 1037 * This routine handles processing a CLEAR_LA mailbox 1038 * command upon completion. It is setup in the LPFC_MBOXQ 1039 * as the completion routine when the command is 1040 * handed off to the SLI layer. SLI3 only. 1041 */ 1042 static void 1043 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1044 { 1045 struct lpfc_vport *vport = pmb->vport; 1046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1047 struct lpfc_sli *psli = &phba->sli; 1048 MAILBOX_t *mb = &pmb->u.mb; 1049 uint32_t control; 1050 1051 /* Since we don't do discovery right now, turn these off here */ 1052 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1053 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1054 1055 /* Check for error */ 1056 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1057 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1058 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1059 "0320 CLEAR_LA mbxStatus error x%x hba " 1060 "state x%x\n", 1061 mb->mbxStatus, vport->port_state); 1062 phba->link_state = LPFC_HBA_ERROR; 1063 goto out; 1064 } 1065 1066 if (vport->port_type == LPFC_PHYSICAL_PORT) 1067 phba->link_state = LPFC_HBA_READY; 1068 1069 spin_lock_irq(&phba->hbalock); 1070 psli->sli_flag |= LPFC_PROCESS_LA; 1071 control = readl(phba->HCregaddr); 1072 control |= HC_LAINT_ENA; 1073 writel(control, phba->HCregaddr); 1074 readl(phba->HCregaddr); /* flush */ 1075 spin_unlock_irq(&phba->hbalock); 1076 mempool_free(pmb, phba->mbox_mem_pool); 1077 return; 1078 1079 out: 1080 /* Device Discovery completes */ 1081 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1082 "0225 Device Discovery completes\n"); 1083 mempool_free(pmb, phba->mbox_mem_pool); 1084 1085 spin_lock_irq(shost->host_lock); 1086 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1087 spin_unlock_irq(shost->host_lock); 1088 1089 lpfc_can_disctmo(vport); 1090 1091 /* turn on Link Attention interrupts */ 1092 1093 spin_lock_irq(&phba->hbalock); 1094 psli->sli_flag |= LPFC_PROCESS_LA; 1095 control = readl(phba->HCregaddr); 1096 control |= HC_LAINT_ENA; 1097 writel(control, phba->HCregaddr); 1098 readl(phba->HCregaddr); /* flush */ 1099 spin_unlock_irq(&phba->hbalock); 1100 1101 return; 1102 } 1103 1104 1105 void 1106 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1107 { 1108 struct lpfc_vport *vport = pmb->vport; 1109 uint8_t bbscn = 0; 1110 1111 if (pmb->u.mb.mbxStatus) 1112 goto out; 1113 1114 mempool_free(pmb, phba->mbox_mem_pool); 1115 1116 /* don't perform discovery for SLI4 loopback diagnostic test */ 1117 if ((phba->sli_rev == LPFC_SLI_REV4) && 1118 !(phba->hba_flag & HBA_FCOE_MODE) && 1119 (phba->link_flag & LS_LOOPBACK_MODE)) 1120 return; 1121 1122 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1123 vport->fc_flag & FC_PUBLIC_LOOP && 1124 !(vport->fc_flag & FC_LBIT)) { 1125 /* Need to wait for FAN - use discovery timer 1126 * for timeout. port_state is identically 1127 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1128 */ 1129 lpfc_set_disctmo(vport); 1130 return; 1131 } 1132 1133 /* Start discovery by sending a FLOGI. port_state is identically 1134 * LPFC_FLOGI while waiting for FLOGI cmpl 1135 */ 1136 if (vport->port_state != LPFC_FLOGI) { 1137 if (phba->bbcredit_support && phba->cfg_enable_bbcr) { 1138 bbscn = bf_get(lpfc_bbscn_def, 1139 &phba->sli4_hba.bbscn_params); 1140 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 1141 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); 1142 } 1143 lpfc_initial_flogi(vport); 1144 } else if (vport->fc_flag & FC_PT2PT) { 1145 lpfc_disc_start(vport); 1146 } 1147 return; 1148 1149 out: 1150 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1151 "0306 CONFIG_LINK mbxStatus error x%x " 1152 "HBA state x%x\n", 1153 pmb->u.mb.mbxStatus, vport->port_state); 1154 mempool_free(pmb, phba->mbox_mem_pool); 1155 1156 lpfc_linkdown(phba); 1157 1158 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1159 "0200 CONFIG_LINK bad hba state x%x\n", 1160 vport->port_state); 1161 1162 lpfc_issue_clear_la(phba, vport); 1163 return; 1164 } 1165 1166 /** 1167 * lpfc_sli4_clear_fcf_rr_bmask 1168 * @phba pointer to the struct lpfc_hba for this port. 1169 * This fucnction resets the round robin bit mask and clears the 1170 * fcf priority list. The list deletions are done while holding the 1171 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1172 * from the lpfc_fcf_pri record. 1173 **/ 1174 void 1175 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1176 { 1177 struct lpfc_fcf_pri *fcf_pri; 1178 struct lpfc_fcf_pri *next_fcf_pri; 1179 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1180 spin_lock_irq(&phba->hbalock); 1181 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1182 &phba->fcf.fcf_pri_list, list) { 1183 list_del_init(&fcf_pri->list); 1184 fcf_pri->fcf_rec.flag = 0; 1185 } 1186 spin_unlock_irq(&phba->hbalock); 1187 } 1188 static void 1189 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1190 { 1191 struct lpfc_vport *vport = mboxq->vport; 1192 1193 if (mboxq->u.mb.mbxStatus) { 1194 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1195 "2017 REG_FCFI mbxStatus error x%x " 1196 "HBA state x%x\n", 1197 mboxq->u.mb.mbxStatus, vport->port_state); 1198 goto fail_out; 1199 } 1200 1201 /* Start FCoE discovery by sending a FLOGI. */ 1202 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1203 /* Set the FCFI registered flag */ 1204 spin_lock_irq(&phba->hbalock); 1205 phba->fcf.fcf_flag |= FCF_REGISTERED; 1206 spin_unlock_irq(&phba->hbalock); 1207 1208 /* If there is a pending FCoE event, restart FCF table scan. */ 1209 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1210 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1211 goto fail_out; 1212 1213 /* Mark successful completion of FCF table scan */ 1214 spin_lock_irq(&phba->hbalock); 1215 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1216 phba->hba_flag &= ~FCF_TS_INPROG; 1217 if (vport->port_state != LPFC_FLOGI) { 1218 phba->hba_flag |= FCF_RR_INPROG; 1219 spin_unlock_irq(&phba->hbalock); 1220 lpfc_issue_init_vfi(vport); 1221 goto out; 1222 } 1223 spin_unlock_irq(&phba->hbalock); 1224 goto out; 1225 1226 fail_out: 1227 spin_lock_irq(&phba->hbalock); 1228 phba->hba_flag &= ~FCF_RR_INPROG; 1229 spin_unlock_irq(&phba->hbalock); 1230 out: 1231 mempool_free(mboxq, phba->mbox_mem_pool); 1232 } 1233 1234 /** 1235 * lpfc_fab_name_match - Check if the fcf fabric name match. 1236 * @fab_name: pointer to fabric name. 1237 * @new_fcf_record: pointer to fcf record. 1238 * 1239 * This routine compare the fcf record's fabric name with provided 1240 * fabric name. If the fabric name are identical this function 1241 * returns 1 else return 0. 1242 **/ 1243 static uint32_t 1244 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1245 { 1246 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1247 return 0; 1248 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1249 return 0; 1250 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1251 return 0; 1252 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1253 return 0; 1254 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1255 return 0; 1256 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1257 return 0; 1258 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1259 return 0; 1260 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1261 return 0; 1262 return 1; 1263 } 1264 1265 /** 1266 * lpfc_sw_name_match - Check if the fcf switch name match. 1267 * @fab_name: pointer to fabric name. 1268 * @new_fcf_record: pointer to fcf record. 1269 * 1270 * This routine compare the fcf record's switch name with provided 1271 * switch name. If the switch name are identical this function 1272 * returns 1 else return 0. 1273 **/ 1274 static uint32_t 1275 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1276 { 1277 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1278 return 0; 1279 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1280 return 0; 1281 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1282 return 0; 1283 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1284 return 0; 1285 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1286 return 0; 1287 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1288 return 0; 1289 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1290 return 0; 1291 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1292 return 0; 1293 return 1; 1294 } 1295 1296 /** 1297 * lpfc_mac_addr_match - Check if the fcf mac address match. 1298 * @mac_addr: pointer to mac address. 1299 * @new_fcf_record: pointer to fcf record. 1300 * 1301 * This routine compare the fcf record's mac address with HBA's 1302 * FCF mac address. If the mac addresses are identical this function 1303 * returns 1 else return 0. 1304 **/ 1305 static uint32_t 1306 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1307 { 1308 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1309 return 0; 1310 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1311 return 0; 1312 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1313 return 0; 1314 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1315 return 0; 1316 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1317 return 0; 1318 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1319 return 0; 1320 return 1; 1321 } 1322 1323 static bool 1324 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1325 { 1326 return (curr_vlan_id == new_vlan_id); 1327 } 1328 1329 /** 1330 * lpfc_update_fcf_record - Update driver fcf record 1331 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1332 * @phba: pointer to lpfc hba data structure. 1333 * @fcf_index: Index for the lpfc_fcf_record. 1334 * @new_fcf_record: pointer to hba fcf record. 1335 * 1336 * This routine updates the driver FCF priority record from the new HBA FCF 1337 * record. This routine is called with the host lock held. 1338 **/ 1339 static void 1340 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1341 struct fcf_record *new_fcf_record 1342 ) 1343 { 1344 struct lpfc_fcf_pri *fcf_pri; 1345 1346 lockdep_assert_held(&phba->hbalock); 1347 1348 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1349 fcf_pri->fcf_rec.fcf_index = fcf_index; 1350 /* FCF record priority */ 1351 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1352 1353 } 1354 1355 /** 1356 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1357 * @fcf: pointer to driver fcf record. 1358 * @new_fcf_record: pointer to fcf record. 1359 * 1360 * This routine copies the FCF information from the FCF 1361 * record to lpfc_hba data structure. 1362 **/ 1363 static void 1364 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1365 struct fcf_record *new_fcf_record) 1366 { 1367 /* Fabric name */ 1368 fcf_rec->fabric_name[0] = 1369 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1370 fcf_rec->fabric_name[1] = 1371 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1372 fcf_rec->fabric_name[2] = 1373 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1374 fcf_rec->fabric_name[3] = 1375 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1376 fcf_rec->fabric_name[4] = 1377 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1378 fcf_rec->fabric_name[5] = 1379 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1380 fcf_rec->fabric_name[6] = 1381 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1382 fcf_rec->fabric_name[7] = 1383 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1384 /* Mac address */ 1385 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1386 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1387 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1388 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1389 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1390 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1391 /* FCF record index */ 1392 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1393 /* FCF record priority */ 1394 fcf_rec->priority = new_fcf_record->fip_priority; 1395 /* Switch name */ 1396 fcf_rec->switch_name[0] = 1397 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1398 fcf_rec->switch_name[1] = 1399 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1400 fcf_rec->switch_name[2] = 1401 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1402 fcf_rec->switch_name[3] = 1403 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1404 fcf_rec->switch_name[4] = 1405 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1406 fcf_rec->switch_name[5] = 1407 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1408 fcf_rec->switch_name[6] = 1409 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1410 fcf_rec->switch_name[7] = 1411 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1412 } 1413 1414 /** 1415 * lpfc_update_fcf_record - Update driver fcf record 1416 * @phba: pointer to lpfc hba data structure. 1417 * @fcf_rec: pointer to driver fcf record. 1418 * @new_fcf_record: pointer to hba fcf record. 1419 * @addr_mode: address mode to be set to the driver fcf record. 1420 * @vlan_id: vlan tag to be set to the driver fcf record. 1421 * @flag: flag bits to be set to the driver fcf record. 1422 * 1423 * This routine updates the driver FCF record from the new HBA FCF record 1424 * together with the address mode, vlan_id, and other informations. This 1425 * routine is called with the host lock held. 1426 **/ 1427 static void 1428 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1429 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1430 uint16_t vlan_id, uint32_t flag) 1431 { 1432 lockdep_assert_held(&phba->hbalock); 1433 1434 /* Copy the fields from the HBA's FCF record */ 1435 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1436 /* Update other fields of driver FCF record */ 1437 fcf_rec->addr_mode = addr_mode; 1438 fcf_rec->vlan_id = vlan_id; 1439 fcf_rec->flag |= (flag | RECORD_VALID); 1440 __lpfc_update_fcf_record_pri(phba, 1441 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1442 new_fcf_record); 1443 } 1444 1445 /** 1446 * lpfc_register_fcf - Register the FCF with hba. 1447 * @phba: pointer to lpfc hba data structure. 1448 * 1449 * This routine issues a register fcfi mailbox command to register 1450 * the fcf with HBA. 1451 **/ 1452 static void 1453 lpfc_register_fcf(struct lpfc_hba *phba) 1454 { 1455 LPFC_MBOXQ_t *fcf_mbxq; 1456 int rc; 1457 1458 spin_lock_irq(&phba->hbalock); 1459 /* If the FCF is not available do nothing. */ 1460 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1461 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1462 spin_unlock_irq(&phba->hbalock); 1463 return; 1464 } 1465 1466 /* The FCF is already registered, start discovery */ 1467 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1468 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1469 phba->hba_flag &= ~FCF_TS_INPROG; 1470 if (phba->pport->port_state != LPFC_FLOGI && 1471 phba->pport->fc_flag & FC_FABRIC) { 1472 phba->hba_flag |= FCF_RR_INPROG; 1473 spin_unlock_irq(&phba->hbalock); 1474 lpfc_initial_flogi(phba->pport); 1475 return; 1476 } 1477 spin_unlock_irq(&phba->hbalock); 1478 return; 1479 } 1480 spin_unlock_irq(&phba->hbalock); 1481 1482 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1483 if (!fcf_mbxq) { 1484 spin_lock_irq(&phba->hbalock); 1485 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1486 spin_unlock_irq(&phba->hbalock); 1487 return; 1488 } 1489 1490 lpfc_reg_fcfi(phba, fcf_mbxq); 1491 fcf_mbxq->vport = phba->pport; 1492 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1493 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1494 if (rc == MBX_NOT_FINISHED) { 1495 spin_lock_irq(&phba->hbalock); 1496 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1497 spin_unlock_irq(&phba->hbalock); 1498 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1499 } 1500 1501 return; 1502 } 1503 1504 /** 1505 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1506 * @phba: pointer to lpfc hba data structure. 1507 * @new_fcf_record: pointer to fcf record. 1508 * @boot_flag: Indicates if this record used by boot bios. 1509 * @addr_mode: The address mode to be used by this FCF 1510 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1511 * 1512 * This routine compare the fcf record with connect list obtained from the 1513 * config region to decide if this FCF can be used for SAN discovery. It returns 1514 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1515 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1516 * is used by boot bios and addr_mode will indicate the addressing mode to be 1517 * used for this FCF when the function returns. 1518 * If the FCF record need to be used with a particular vlan id, the vlan is 1519 * set in the vlan_id on return of the function. If not VLAN tagging need to 1520 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1521 **/ 1522 static int 1523 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1524 struct fcf_record *new_fcf_record, 1525 uint32_t *boot_flag, uint32_t *addr_mode, 1526 uint16_t *vlan_id) 1527 { 1528 struct lpfc_fcf_conn_entry *conn_entry; 1529 int i, j, fcf_vlan_id = 0; 1530 1531 /* Find the lowest VLAN id in the FCF record */ 1532 for (i = 0; i < 512; i++) { 1533 if (new_fcf_record->vlan_bitmap[i]) { 1534 fcf_vlan_id = i * 8; 1535 j = 0; 1536 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1537 j++; 1538 fcf_vlan_id++; 1539 } 1540 break; 1541 } 1542 } 1543 1544 /* FCF not valid/available or solicitation in progress */ 1545 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1546 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1547 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1548 return 0; 1549 1550 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1551 *boot_flag = 0; 1552 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1553 new_fcf_record); 1554 if (phba->valid_vlan) 1555 *vlan_id = phba->vlan_id; 1556 else 1557 *vlan_id = LPFC_FCOE_NULL_VID; 1558 return 1; 1559 } 1560 1561 /* 1562 * If there are no FCF connection table entry, driver connect to all 1563 * FCFs. 1564 */ 1565 if (list_empty(&phba->fcf_conn_rec_list)) { 1566 *boot_flag = 0; 1567 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1568 new_fcf_record); 1569 1570 /* 1571 * When there are no FCF connect entries, use driver's default 1572 * addressing mode - FPMA. 1573 */ 1574 if (*addr_mode & LPFC_FCF_FPMA) 1575 *addr_mode = LPFC_FCF_FPMA; 1576 1577 /* If FCF record report a vlan id use that vlan id */ 1578 if (fcf_vlan_id) 1579 *vlan_id = fcf_vlan_id; 1580 else 1581 *vlan_id = LPFC_FCOE_NULL_VID; 1582 return 1; 1583 } 1584 1585 list_for_each_entry(conn_entry, 1586 &phba->fcf_conn_rec_list, list) { 1587 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1588 continue; 1589 1590 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1591 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1592 new_fcf_record)) 1593 continue; 1594 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1595 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1596 new_fcf_record)) 1597 continue; 1598 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1599 /* 1600 * If the vlan bit map does not have the bit set for the 1601 * vlan id to be used, then it is not a match. 1602 */ 1603 if (!(new_fcf_record->vlan_bitmap 1604 [conn_entry->conn_rec.vlan_tag / 8] & 1605 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1606 continue; 1607 } 1608 1609 /* 1610 * If connection record does not support any addressing mode, 1611 * skip the FCF record. 1612 */ 1613 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1614 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1615 continue; 1616 1617 /* 1618 * Check if the connection record specifies a required 1619 * addressing mode. 1620 */ 1621 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1622 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1623 1624 /* 1625 * If SPMA required but FCF not support this continue. 1626 */ 1627 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1628 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1629 new_fcf_record) & LPFC_FCF_SPMA)) 1630 continue; 1631 1632 /* 1633 * If FPMA required but FCF not support this continue. 1634 */ 1635 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1636 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1637 new_fcf_record) & LPFC_FCF_FPMA)) 1638 continue; 1639 } 1640 1641 /* 1642 * This fcf record matches filtering criteria. 1643 */ 1644 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1645 *boot_flag = 1; 1646 else 1647 *boot_flag = 0; 1648 1649 /* 1650 * If user did not specify any addressing mode, or if the 1651 * preferred addressing mode specified by user is not supported 1652 * by FCF, allow fabric to pick the addressing mode. 1653 */ 1654 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1655 new_fcf_record); 1656 /* 1657 * If the user specified a required address mode, assign that 1658 * address mode 1659 */ 1660 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1661 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1662 *addr_mode = (conn_entry->conn_rec.flags & 1663 FCFCNCT_AM_SPMA) ? 1664 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1665 /* 1666 * If the user specified a preferred address mode, use the 1667 * addr mode only if FCF support the addr_mode. 1668 */ 1669 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1670 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1671 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1672 (*addr_mode & LPFC_FCF_SPMA)) 1673 *addr_mode = LPFC_FCF_SPMA; 1674 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1675 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1676 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1677 (*addr_mode & LPFC_FCF_FPMA)) 1678 *addr_mode = LPFC_FCF_FPMA; 1679 1680 /* If matching connect list has a vlan id, use it */ 1681 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1682 *vlan_id = conn_entry->conn_rec.vlan_tag; 1683 /* 1684 * If no vlan id is specified in connect list, use the vlan id 1685 * in the FCF record 1686 */ 1687 else if (fcf_vlan_id) 1688 *vlan_id = fcf_vlan_id; 1689 else 1690 *vlan_id = LPFC_FCOE_NULL_VID; 1691 1692 return 1; 1693 } 1694 1695 return 0; 1696 } 1697 1698 /** 1699 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1700 * @phba: pointer to lpfc hba data structure. 1701 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1702 * 1703 * This function check if there is any fcoe event pending while driver 1704 * scan FCF entries. If there is any pending event, it will restart the 1705 * FCF saning and return 1 else return 0. 1706 */ 1707 int 1708 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1709 { 1710 /* 1711 * If the Link is up and no FCoE events while in the 1712 * FCF discovery, no need to restart FCF discovery. 1713 */ 1714 if ((phba->link_state >= LPFC_LINK_UP) && 1715 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1716 return 0; 1717 1718 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1719 "2768 Pending link or FCF event during current " 1720 "handling of the previous event: link_state:x%x, " 1721 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1722 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1723 phba->fcoe_eventtag); 1724 1725 spin_lock_irq(&phba->hbalock); 1726 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1727 spin_unlock_irq(&phba->hbalock); 1728 1729 if (phba->link_state >= LPFC_LINK_UP) { 1730 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1731 "2780 Restart FCF table scan due to " 1732 "pending FCF event:evt_tag_at_scan:x%x, " 1733 "evt_tag_current:x%x\n", 1734 phba->fcoe_eventtag_at_fcf_scan, 1735 phba->fcoe_eventtag); 1736 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1737 } else { 1738 /* 1739 * Do not continue FCF discovery and clear FCF_TS_INPROG 1740 * flag 1741 */ 1742 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1743 "2833 Stop FCF discovery process due to link " 1744 "state change (x%x)\n", phba->link_state); 1745 spin_lock_irq(&phba->hbalock); 1746 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1747 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1748 spin_unlock_irq(&phba->hbalock); 1749 } 1750 1751 /* Unregister the currently registered FCF if required */ 1752 if (unreg_fcf) { 1753 spin_lock_irq(&phba->hbalock); 1754 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1755 spin_unlock_irq(&phba->hbalock); 1756 lpfc_sli4_unregister_fcf(phba); 1757 } 1758 return 1; 1759 } 1760 1761 /** 1762 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1763 * @phba: pointer to lpfc hba data structure. 1764 * @fcf_cnt: number of eligible fcf record seen so far. 1765 * 1766 * This function makes an running random selection decision on FCF record to 1767 * use through a sequence of @fcf_cnt eligible FCF records with equal 1768 * probability. To perform integer manunipulation of random numbers with 1769 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1770 * from prandom_u32() are taken as the random random number generated. 1771 * 1772 * Returns true when outcome is for the newly read FCF record should be 1773 * chosen; otherwise, return false when outcome is for keeping the previously 1774 * chosen FCF record. 1775 **/ 1776 static bool 1777 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1778 { 1779 uint32_t rand_num; 1780 1781 /* Get 16-bit uniform random number */ 1782 rand_num = 0xFFFF & prandom_u32(); 1783 1784 /* Decision with probability 1/fcf_cnt */ 1785 if ((fcf_cnt * rand_num) < 0xFFFF) 1786 return true; 1787 else 1788 return false; 1789 } 1790 1791 /** 1792 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1793 * @phba: pointer to lpfc hba data structure. 1794 * @mboxq: pointer to mailbox object. 1795 * @next_fcf_index: pointer to holder of next fcf index. 1796 * 1797 * This routine parses the non-embedded fcf mailbox command by performing the 1798 * necessarily error checking, non-embedded read FCF record mailbox command 1799 * SGE parsing, and endianness swapping. 1800 * 1801 * Returns the pointer to the new FCF record in the non-embedded mailbox 1802 * command DMA memory if successfully, other NULL. 1803 */ 1804 static struct fcf_record * 1805 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1806 uint16_t *next_fcf_index) 1807 { 1808 void *virt_addr; 1809 struct lpfc_mbx_sge sge; 1810 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1811 uint32_t shdr_status, shdr_add_status, if_type; 1812 union lpfc_sli4_cfg_shdr *shdr; 1813 struct fcf_record *new_fcf_record; 1814 1815 /* Get the first SGE entry from the non-embedded DMA memory. This 1816 * routine only uses a single SGE. 1817 */ 1818 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1819 if (unlikely(!mboxq->sge_array)) { 1820 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1821 "2524 Failed to get the non-embedded SGE " 1822 "virtual address\n"); 1823 return NULL; 1824 } 1825 virt_addr = mboxq->sge_array->addr[0]; 1826 1827 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1828 lpfc_sli_pcimem_bcopy(shdr, shdr, 1829 sizeof(union lpfc_sli4_cfg_shdr)); 1830 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1831 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1832 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1833 if (shdr_status || shdr_add_status) { 1834 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1835 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1836 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1837 "2726 READ_FCF_RECORD Indicates empty " 1838 "FCF table.\n"); 1839 else 1840 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1841 "2521 READ_FCF_RECORD mailbox failed " 1842 "with status x%x add_status x%x, " 1843 "mbx\n", shdr_status, shdr_add_status); 1844 return NULL; 1845 } 1846 1847 /* Interpreting the returned information of the FCF record */ 1848 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1849 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1850 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1851 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1852 new_fcf_record = (struct fcf_record *)(virt_addr + 1853 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1854 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1855 offsetof(struct fcf_record, vlan_bitmap)); 1856 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1857 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1858 1859 return new_fcf_record; 1860 } 1861 1862 /** 1863 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1864 * @phba: pointer to lpfc hba data structure. 1865 * @fcf_record: pointer to the fcf record. 1866 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1867 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1868 * 1869 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1870 * enabled. 1871 **/ 1872 static void 1873 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1874 struct fcf_record *fcf_record, 1875 uint16_t vlan_id, 1876 uint16_t next_fcf_index) 1877 { 1878 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1879 "2764 READ_FCF_RECORD:\n" 1880 "\tFCF_Index : x%x\n" 1881 "\tFCF_Avail : x%x\n" 1882 "\tFCF_Valid : x%x\n" 1883 "\tFCF_SOL : x%x\n" 1884 "\tFIP_Priority : x%x\n" 1885 "\tMAC_Provider : x%x\n" 1886 "\tLowest VLANID : x%x\n" 1887 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1888 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1889 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1890 "\tNext_FCF_Index: x%x\n", 1891 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1892 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1893 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1894 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1895 fcf_record->fip_priority, 1896 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1897 vlan_id, 1898 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1899 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1900 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1901 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1902 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1903 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1904 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1905 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1906 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1907 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1908 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1909 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1910 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1911 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1912 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1913 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1914 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1915 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1916 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1917 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1918 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1919 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1920 next_fcf_index); 1921 } 1922 1923 /** 1924 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1925 * @phba: pointer to lpfc hba data structure. 1926 * @fcf_rec: pointer to an existing FCF record. 1927 * @new_fcf_record: pointer to a new FCF record. 1928 * @new_vlan_id: vlan id from the new FCF record. 1929 * 1930 * This function performs matching test of a new FCF record against an existing 1931 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1932 * will not be used as part of the FCF record matching criteria. 1933 * 1934 * Returns true if all the fields matching, otherwise returns false. 1935 */ 1936 static bool 1937 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1938 struct lpfc_fcf_rec *fcf_rec, 1939 struct fcf_record *new_fcf_record, 1940 uint16_t new_vlan_id) 1941 { 1942 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1943 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1944 return false; 1945 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1946 return false; 1947 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1948 return false; 1949 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1950 return false; 1951 if (fcf_rec->priority != new_fcf_record->fip_priority) 1952 return false; 1953 return true; 1954 } 1955 1956 /** 1957 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1958 * @vport: Pointer to vport object. 1959 * @fcf_index: index to next fcf. 1960 * 1961 * This function processing the roundrobin fcf failover to next fcf index. 1962 * When this function is invoked, there will be a current fcf registered 1963 * for flogi. 1964 * Return: 0 for continue retrying flogi on currently registered fcf; 1965 * 1 for stop flogi on currently registered fcf; 1966 */ 1967 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1968 { 1969 struct lpfc_hba *phba = vport->phba; 1970 int rc; 1971 1972 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1973 spin_lock_irq(&phba->hbalock); 1974 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1975 spin_unlock_irq(&phba->hbalock); 1976 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1977 "2872 Devloss tmo with no eligible " 1978 "FCF, unregister in-use FCF (x%x) " 1979 "and rescan FCF table\n", 1980 phba->fcf.current_rec.fcf_indx); 1981 lpfc_unregister_fcf_rescan(phba); 1982 goto stop_flogi_current_fcf; 1983 } 1984 /* Mark the end to FLOGI roundrobin failover */ 1985 phba->hba_flag &= ~FCF_RR_INPROG; 1986 /* Allow action to new fcf asynchronous event */ 1987 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1988 spin_unlock_irq(&phba->hbalock); 1989 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1990 "2865 No FCF available, stop roundrobin FCF " 1991 "failover and change port state:x%x/x%x\n", 1992 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1993 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1994 goto stop_flogi_current_fcf; 1995 } else { 1996 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1997 "2794 Try FLOGI roundrobin FCF failover to " 1998 "(x%x)\n", fcf_index); 1999 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2000 if (rc) 2001 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2002 "2761 FLOGI roundrobin FCF failover " 2003 "failed (rc:x%x) to read FCF (x%x)\n", 2004 rc, phba->fcf.current_rec.fcf_indx); 2005 else 2006 goto stop_flogi_current_fcf; 2007 } 2008 return 0; 2009 2010 stop_flogi_current_fcf: 2011 lpfc_can_disctmo(vport); 2012 return 1; 2013 } 2014 2015 /** 2016 * lpfc_sli4_fcf_pri_list_del 2017 * @phba: pointer to lpfc hba data structure. 2018 * @fcf_index the index of the fcf record to delete 2019 * This routine checks the on list flag of the fcf_index to be deleted. 2020 * If it is one the list then it is removed from the list, and the flag 2021 * is cleared. This routine grab the hbalock before removing the fcf 2022 * record from the list. 2023 **/ 2024 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2025 uint16_t fcf_index) 2026 { 2027 struct lpfc_fcf_pri *new_fcf_pri; 2028 2029 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2030 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2031 "3058 deleting idx x%x pri x%x flg x%x\n", 2032 fcf_index, new_fcf_pri->fcf_rec.priority, 2033 new_fcf_pri->fcf_rec.flag); 2034 spin_lock_irq(&phba->hbalock); 2035 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2036 if (phba->fcf.current_rec.priority == 2037 new_fcf_pri->fcf_rec.priority) 2038 phba->fcf.eligible_fcf_cnt--; 2039 list_del_init(&new_fcf_pri->list); 2040 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2041 } 2042 spin_unlock_irq(&phba->hbalock); 2043 } 2044 2045 /** 2046 * lpfc_sli4_set_fcf_flogi_fail 2047 * @phba: pointer to lpfc hba data structure. 2048 * @fcf_index the index of the fcf record to update 2049 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2050 * flag so the the round robin slection for the particular priority level 2051 * will try a different fcf record that does not have this bit set. 2052 * If the fcf record is re-read for any reason this flag is cleared brfore 2053 * adding it to the priority list. 2054 **/ 2055 void 2056 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2057 { 2058 struct lpfc_fcf_pri *new_fcf_pri; 2059 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2060 spin_lock_irq(&phba->hbalock); 2061 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2062 spin_unlock_irq(&phba->hbalock); 2063 } 2064 2065 /** 2066 * lpfc_sli4_fcf_pri_list_add 2067 * @phba: pointer to lpfc hba data structure. 2068 * @fcf_index the index of the fcf record to add 2069 * This routine checks the priority of the fcf_index to be added. 2070 * If it is a lower priority than the current head of the fcf_pri list 2071 * then it is added to the list in the right order. 2072 * If it is the same priority as the current head of the list then it 2073 * is added to the head of the list and its bit in the rr_bmask is set. 2074 * If the fcf_index to be added is of a higher priority than the current 2075 * head of the list then the rr_bmask is cleared, its bit is set in the 2076 * rr_bmask and it is added to the head of the list. 2077 * returns: 2078 * 0=success 1=failure 2079 **/ 2080 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2081 uint16_t fcf_index, 2082 struct fcf_record *new_fcf_record) 2083 { 2084 uint16_t current_fcf_pri; 2085 uint16_t last_index; 2086 struct lpfc_fcf_pri *fcf_pri; 2087 struct lpfc_fcf_pri *next_fcf_pri; 2088 struct lpfc_fcf_pri *new_fcf_pri; 2089 int ret; 2090 2091 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2092 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2093 "3059 adding idx x%x pri x%x flg x%x\n", 2094 fcf_index, new_fcf_record->fip_priority, 2095 new_fcf_pri->fcf_rec.flag); 2096 spin_lock_irq(&phba->hbalock); 2097 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2098 list_del_init(&new_fcf_pri->list); 2099 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2100 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2101 if (list_empty(&phba->fcf.fcf_pri_list)) { 2102 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2103 ret = lpfc_sli4_fcf_rr_index_set(phba, 2104 new_fcf_pri->fcf_rec.fcf_index); 2105 goto out; 2106 } 2107 2108 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2109 LPFC_SLI4_FCF_TBL_INDX_MAX); 2110 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2111 ret = 0; /* Empty rr list */ 2112 goto out; 2113 } 2114 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2115 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2116 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2117 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2118 memset(phba->fcf.fcf_rr_bmask, 0, 2119 sizeof(*phba->fcf.fcf_rr_bmask)); 2120 /* fcfs_at_this_priority_level = 1; */ 2121 phba->fcf.eligible_fcf_cnt = 1; 2122 } else 2123 /* fcfs_at_this_priority_level++; */ 2124 phba->fcf.eligible_fcf_cnt++; 2125 ret = lpfc_sli4_fcf_rr_index_set(phba, 2126 new_fcf_pri->fcf_rec.fcf_index); 2127 goto out; 2128 } 2129 2130 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2131 &phba->fcf.fcf_pri_list, list) { 2132 if (new_fcf_pri->fcf_rec.priority <= 2133 fcf_pri->fcf_rec.priority) { 2134 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2135 list_add(&new_fcf_pri->list, 2136 &phba->fcf.fcf_pri_list); 2137 else 2138 list_add(&new_fcf_pri->list, 2139 &((struct lpfc_fcf_pri *) 2140 fcf_pri->list.prev)->list); 2141 ret = 0; 2142 goto out; 2143 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2144 || new_fcf_pri->fcf_rec.priority < 2145 next_fcf_pri->fcf_rec.priority) { 2146 list_add(&new_fcf_pri->list, &fcf_pri->list); 2147 ret = 0; 2148 goto out; 2149 } 2150 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2151 continue; 2152 2153 } 2154 ret = 1; 2155 out: 2156 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2157 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2158 spin_unlock_irq(&phba->hbalock); 2159 return ret; 2160 } 2161 2162 /** 2163 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2164 * @phba: pointer to lpfc hba data structure. 2165 * @mboxq: pointer to mailbox object. 2166 * 2167 * This function iterates through all the fcf records available in 2168 * HBA and chooses the optimal FCF record for discovery. After finding 2169 * the FCF for discovery it registers the FCF record and kicks start 2170 * discovery. 2171 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2172 * use an FCF record which matches fabric name and mac address of the 2173 * currently used FCF record. 2174 * If the driver supports only one FCF, it will try to use the FCF record 2175 * used by BOOT_BIOS. 2176 */ 2177 void 2178 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2179 { 2180 struct fcf_record *new_fcf_record; 2181 uint32_t boot_flag, addr_mode; 2182 uint16_t fcf_index, next_fcf_index; 2183 struct lpfc_fcf_rec *fcf_rec = NULL; 2184 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2185 bool select_new_fcf; 2186 int rc; 2187 2188 /* If there is pending FCoE event restart FCF table scan */ 2189 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2190 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2191 return; 2192 } 2193 2194 /* Parse the FCF record from the non-embedded mailbox command */ 2195 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2196 &next_fcf_index); 2197 if (!new_fcf_record) { 2198 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2199 "2765 Mailbox command READ_FCF_RECORD " 2200 "failed to retrieve a FCF record.\n"); 2201 /* Let next new FCF event trigger fast failover */ 2202 spin_lock_irq(&phba->hbalock); 2203 phba->hba_flag &= ~FCF_TS_INPROG; 2204 spin_unlock_irq(&phba->hbalock); 2205 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2206 return; 2207 } 2208 2209 /* Check the FCF record against the connection list */ 2210 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2211 &addr_mode, &vlan_id); 2212 2213 /* Log the FCF record information if turned on */ 2214 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2215 next_fcf_index); 2216 2217 /* 2218 * If the fcf record does not match with connect list entries 2219 * read the next entry; otherwise, this is an eligible FCF 2220 * record for roundrobin FCF failover. 2221 */ 2222 if (!rc) { 2223 lpfc_sli4_fcf_pri_list_del(phba, 2224 bf_get(lpfc_fcf_record_fcf_index, 2225 new_fcf_record)); 2226 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2227 "2781 FCF (x%x) failed connection " 2228 "list check: (x%x/x%x/%x)\n", 2229 bf_get(lpfc_fcf_record_fcf_index, 2230 new_fcf_record), 2231 bf_get(lpfc_fcf_record_fcf_avail, 2232 new_fcf_record), 2233 bf_get(lpfc_fcf_record_fcf_valid, 2234 new_fcf_record), 2235 bf_get(lpfc_fcf_record_fcf_sol, 2236 new_fcf_record)); 2237 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2238 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2239 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2240 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2241 phba->fcf.current_rec.fcf_indx) { 2242 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2243 "2862 FCF (x%x) matches property " 2244 "of in-use FCF (x%x)\n", 2245 bf_get(lpfc_fcf_record_fcf_index, 2246 new_fcf_record), 2247 phba->fcf.current_rec.fcf_indx); 2248 goto read_next_fcf; 2249 } 2250 /* 2251 * In case the current in-use FCF record becomes 2252 * invalid/unavailable during FCF discovery that 2253 * was not triggered by fast FCF failover process, 2254 * treat it as fast FCF failover. 2255 */ 2256 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2257 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2258 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2259 "2835 Invalid in-use FCF " 2260 "(x%x), enter FCF failover " 2261 "table scan.\n", 2262 phba->fcf.current_rec.fcf_indx); 2263 spin_lock_irq(&phba->hbalock); 2264 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2265 spin_unlock_irq(&phba->hbalock); 2266 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2267 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2268 LPFC_FCOE_FCF_GET_FIRST); 2269 return; 2270 } 2271 } 2272 goto read_next_fcf; 2273 } else { 2274 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2275 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2276 new_fcf_record); 2277 if (rc) 2278 goto read_next_fcf; 2279 } 2280 2281 /* 2282 * If this is not the first FCF discovery of the HBA, use last 2283 * FCF record for the discovery. The condition that a rescan 2284 * matches the in-use FCF record: fabric name, switch name, mac 2285 * address, and vlan_id. 2286 */ 2287 spin_lock_irq(&phba->hbalock); 2288 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2289 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2290 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2291 new_fcf_record, vlan_id)) { 2292 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2293 phba->fcf.current_rec.fcf_indx) { 2294 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2295 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2296 /* Stop FCF redisc wait timer */ 2297 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2298 phba); 2299 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2300 /* Fast failover, mark completed */ 2301 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2302 spin_unlock_irq(&phba->hbalock); 2303 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2304 "2836 New FCF matches in-use " 2305 "FCF (x%x), port_state:x%x, " 2306 "fc_flag:x%x\n", 2307 phba->fcf.current_rec.fcf_indx, 2308 phba->pport->port_state, 2309 phba->pport->fc_flag); 2310 goto out; 2311 } else 2312 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2313 "2863 New FCF (x%x) matches " 2314 "property of in-use FCF (x%x)\n", 2315 bf_get(lpfc_fcf_record_fcf_index, 2316 new_fcf_record), 2317 phba->fcf.current_rec.fcf_indx); 2318 } 2319 /* 2320 * Read next FCF record from HBA searching for the matching 2321 * with in-use record only if not during the fast failover 2322 * period. In case of fast failover period, it shall try to 2323 * determine whether the FCF record just read should be the 2324 * next candidate. 2325 */ 2326 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2327 spin_unlock_irq(&phba->hbalock); 2328 goto read_next_fcf; 2329 } 2330 } 2331 /* 2332 * Update on failover FCF record only if it's in FCF fast-failover 2333 * period; otherwise, update on current FCF record. 2334 */ 2335 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2336 fcf_rec = &phba->fcf.failover_rec; 2337 else 2338 fcf_rec = &phba->fcf.current_rec; 2339 2340 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2341 /* 2342 * If the driver FCF record does not have boot flag 2343 * set and new hba fcf record has boot flag set, use 2344 * the new hba fcf record. 2345 */ 2346 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2347 /* Choose this FCF record */ 2348 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2349 "2837 Update current FCF record " 2350 "(x%x) with new FCF record (x%x)\n", 2351 fcf_rec->fcf_indx, 2352 bf_get(lpfc_fcf_record_fcf_index, 2353 new_fcf_record)); 2354 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2355 addr_mode, vlan_id, BOOT_ENABLE); 2356 spin_unlock_irq(&phba->hbalock); 2357 goto read_next_fcf; 2358 } 2359 /* 2360 * If the driver FCF record has boot flag set and the 2361 * new hba FCF record does not have boot flag, read 2362 * the next FCF record. 2363 */ 2364 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2365 spin_unlock_irq(&phba->hbalock); 2366 goto read_next_fcf; 2367 } 2368 /* 2369 * If the new hba FCF record has lower priority value 2370 * than the driver FCF record, use the new record. 2371 */ 2372 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2373 /* Choose the new FCF record with lower priority */ 2374 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2375 "2838 Update current FCF record " 2376 "(x%x) with new FCF record (x%x)\n", 2377 fcf_rec->fcf_indx, 2378 bf_get(lpfc_fcf_record_fcf_index, 2379 new_fcf_record)); 2380 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2381 addr_mode, vlan_id, 0); 2382 /* Reset running random FCF selection count */ 2383 phba->fcf.eligible_fcf_cnt = 1; 2384 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2385 /* Update running random FCF selection count */ 2386 phba->fcf.eligible_fcf_cnt++; 2387 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2388 phba->fcf.eligible_fcf_cnt); 2389 if (select_new_fcf) { 2390 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2391 "2839 Update current FCF record " 2392 "(x%x) with new FCF record (x%x)\n", 2393 fcf_rec->fcf_indx, 2394 bf_get(lpfc_fcf_record_fcf_index, 2395 new_fcf_record)); 2396 /* Choose the new FCF by random selection */ 2397 __lpfc_update_fcf_record(phba, fcf_rec, 2398 new_fcf_record, 2399 addr_mode, vlan_id, 0); 2400 } 2401 } 2402 spin_unlock_irq(&phba->hbalock); 2403 goto read_next_fcf; 2404 } 2405 /* 2406 * This is the first suitable FCF record, choose this record for 2407 * initial best-fit FCF. 2408 */ 2409 if (fcf_rec) { 2410 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2411 "2840 Update initial FCF candidate " 2412 "with FCF (x%x)\n", 2413 bf_get(lpfc_fcf_record_fcf_index, 2414 new_fcf_record)); 2415 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2416 addr_mode, vlan_id, (boot_flag ? 2417 BOOT_ENABLE : 0)); 2418 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2419 /* Setup initial running random FCF selection count */ 2420 phba->fcf.eligible_fcf_cnt = 1; 2421 } 2422 spin_unlock_irq(&phba->hbalock); 2423 goto read_next_fcf; 2424 2425 read_next_fcf: 2426 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2427 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2428 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2429 /* 2430 * Case of FCF fast failover scan 2431 */ 2432 2433 /* 2434 * It has not found any suitable FCF record, cancel 2435 * FCF scan inprogress, and do nothing 2436 */ 2437 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2438 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2439 "2782 No suitable FCF found: " 2440 "(x%x/x%x)\n", 2441 phba->fcoe_eventtag_at_fcf_scan, 2442 bf_get(lpfc_fcf_record_fcf_index, 2443 new_fcf_record)); 2444 spin_lock_irq(&phba->hbalock); 2445 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2446 phba->hba_flag &= ~FCF_TS_INPROG; 2447 spin_unlock_irq(&phba->hbalock); 2448 /* Unregister in-use FCF and rescan */ 2449 lpfc_printf_log(phba, KERN_INFO, 2450 LOG_FIP, 2451 "2864 On devloss tmo " 2452 "unreg in-use FCF and " 2453 "rescan FCF table\n"); 2454 lpfc_unregister_fcf_rescan(phba); 2455 return; 2456 } 2457 /* 2458 * Let next new FCF event trigger fast failover 2459 */ 2460 phba->hba_flag &= ~FCF_TS_INPROG; 2461 spin_unlock_irq(&phba->hbalock); 2462 return; 2463 } 2464 /* 2465 * It has found a suitable FCF record that is not 2466 * the same as in-use FCF record, unregister the 2467 * in-use FCF record, replace the in-use FCF record 2468 * with the new FCF record, mark FCF fast failover 2469 * completed, and then start register the new FCF 2470 * record. 2471 */ 2472 2473 /* Unregister the current in-use FCF record */ 2474 lpfc_unregister_fcf(phba); 2475 2476 /* Replace in-use record with the new record */ 2477 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2478 "2842 Replace in-use FCF (x%x) " 2479 "with failover FCF (x%x)\n", 2480 phba->fcf.current_rec.fcf_indx, 2481 phba->fcf.failover_rec.fcf_indx); 2482 memcpy(&phba->fcf.current_rec, 2483 &phba->fcf.failover_rec, 2484 sizeof(struct lpfc_fcf_rec)); 2485 /* 2486 * Mark the fast FCF failover rediscovery completed 2487 * and the start of the first round of the roundrobin 2488 * FCF failover. 2489 */ 2490 spin_lock_irq(&phba->hbalock); 2491 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2492 spin_unlock_irq(&phba->hbalock); 2493 /* Register to the new FCF record */ 2494 lpfc_register_fcf(phba); 2495 } else { 2496 /* 2497 * In case of transaction period to fast FCF failover, 2498 * do nothing when search to the end of the FCF table. 2499 */ 2500 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2501 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2502 return; 2503 2504 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2505 phba->fcf.fcf_flag & FCF_IN_USE) { 2506 /* 2507 * In case the current in-use FCF record no 2508 * longer existed during FCF discovery that 2509 * was not triggered by fast FCF failover 2510 * process, treat it as fast FCF failover. 2511 */ 2512 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2513 "2841 In-use FCF record (x%x) " 2514 "not reported, entering fast " 2515 "FCF failover mode scanning.\n", 2516 phba->fcf.current_rec.fcf_indx); 2517 spin_lock_irq(&phba->hbalock); 2518 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2519 spin_unlock_irq(&phba->hbalock); 2520 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2521 LPFC_FCOE_FCF_GET_FIRST); 2522 return; 2523 } 2524 /* Register to the new FCF record */ 2525 lpfc_register_fcf(phba); 2526 } 2527 } else 2528 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2529 return; 2530 2531 out: 2532 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2533 lpfc_register_fcf(phba); 2534 2535 return; 2536 } 2537 2538 /** 2539 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2540 * @phba: pointer to lpfc hba data structure. 2541 * @mboxq: pointer to mailbox object. 2542 * 2543 * This is the callback function for FLOGI failure roundrobin FCF failover 2544 * read FCF record mailbox command from the eligible FCF record bmask for 2545 * performing the failover. If the FCF read back is not valid/available, it 2546 * fails through to retrying FLOGI to the currently registered FCF again. 2547 * Otherwise, if the FCF read back is valid and available, it will set the 2548 * newly read FCF record to the failover FCF record, unregister currently 2549 * registered FCF record, copy the failover FCF record to the current 2550 * FCF record, and then register the current FCF record before proceeding 2551 * to trying FLOGI on the new failover FCF. 2552 */ 2553 void 2554 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2555 { 2556 struct fcf_record *new_fcf_record; 2557 uint32_t boot_flag, addr_mode; 2558 uint16_t next_fcf_index, fcf_index; 2559 uint16_t current_fcf_index; 2560 uint16_t vlan_id; 2561 int rc; 2562 2563 /* If link state is not up, stop the roundrobin failover process */ 2564 if (phba->link_state < LPFC_LINK_UP) { 2565 spin_lock_irq(&phba->hbalock); 2566 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2567 phba->hba_flag &= ~FCF_RR_INPROG; 2568 spin_unlock_irq(&phba->hbalock); 2569 goto out; 2570 } 2571 2572 /* Parse the FCF record from the non-embedded mailbox command */ 2573 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2574 &next_fcf_index); 2575 if (!new_fcf_record) { 2576 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2577 "2766 Mailbox command READ_FCF_RECORD " 2578 "failed to retrieve a FCF record. " 2579 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2580 phba->fcf.fcf_flag); 2581 lpfc_unregister_fcf_rescan(phba); 2582 goto out; 2583 } 2584 2585 /* Get the needed parameters from FCF record */ 2586 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2587 &addr_mode, &vlan_id); 2588 2589 /* Log the FCF record information if turned on */ 2590 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2591 next_fcf_index); 2592 2593 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2594 if (!rc) { 2595 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2596 "2848 Remove ineligible FCF (x%x) from " 2597 "from roundrobin bmask\n", fcf_index); 2598 /* Clear roundrobin bmask bit for ineligible FCF */ 2599 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2600 /* Perform next round of roundrobin FCF failover */ 2601 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2602 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2603 if (rc) 2604 goto out; 2605 goto error_out; 2606 } 2607 2608 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2609 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2610 "2760 Perform FLOGI roundrobin FCF failover: " 2611 "FCF (x%x) back to FCF (x%x)\n", 2612 phba->fcf.current_rec.fcf_indx, fcf_index); 2613 /* Wait 500 ms before retrying FLOGI to current FCF */ 2614 msleep(500); 2615 lpfc_issue_init_vfi(phba->pport); 2616 goto out; 2617 } 2618 2619 /* Upload new FCF record to the failover FCF record */ 2620 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2621 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2622 phba->fcf.failover_rec.fcf_indx, fcf_index); 2623 spin_lock_irq(&phba->hbalock); 2624 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2625 new_fcf_record, addr_mode, vlan_id, 2626 (boot_flag ? BOOT_ENABLE : 0)); 2627 spin_unlock_irq(&phba->hbalock); 2628 2629 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2630 2631 /* Unregister the current in-use FCF record */ 2632 lpfc_unregister_fcf(phba); 2633 2634 /* Replace in-use record with the new record */ 2635 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2636 sizeof(struct lpfc_fcf_rec)); 2637 2638 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2639 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2640 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2641 2642 error_out: 2643 lpfc_register_fcf(phba); 2644 out: 2645 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2646 } 2647 2648 /** 2649 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2650 * @phba: pointer to lpfc hba data structure. 2651 * @mboxq: pointer to mailbox object. 2652 * 2653 * This is the callback function of read FCF record mailbox command for 2654 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2655 * failover when a new FCF event happened. If the FCF read back is 2656 * valid/available and it passes the connection list check, it updates 2657 * the bmask for the eligible FCF record for roundrobin failover. 2658 */ 2659 void 2660 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2661 { 2662 struct fcf_record *new_fcf_record; 2663 uint32_t boot_flag, addr_mode; 2664 uint16_t fcf_index, next_fcf_index; 2665 uint16_t vlan_id; 2666 int rc; 2667 2668 /* If link state is not up, no need to proceed */ 2669 if (phba->link_state < LPFC_LINK_UP) 2670 goto out; 2671 2672 /* If FCF discovery period is over, no need to proceed */ 2673 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2674 goto out; 2675 2676 /* Parse the FCF record from the non-embedded mailbox command */ 2677 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2678 &next_fcf_index); 2679 if (!new_fcf_record) { 2680 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2681 "2767 Mailbox command READ_FCF_RECORD " 2682 "failed to retrieve a FCF record.\n"); 2683 goto out; 2684 } 2685 2686 /* Check the connection list for eligibility */ 2687 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2688 &addr_mode, &vlan_id); 2689 2690 /* Log the FCF record information if turned on */ 2691 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2692 next_fcf_index); 2693 2694 if (!rc) 2695 goto out; 2696 2697 /* Update the eligible FCF record index bmask */ 2698 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2699 2700 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2701 2702 out: 2703 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2704 } 2705 2706 /** 2707 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2708 * @phba: pointer to lpfc hba data structure. 2709 * @mboxq: pointer to mailbox data structure. 2710 * 2711 * This function handles completion of init vfi mailbox command. 2712 */ 2713 static void 2714 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2715 { 2716 struct lpfc_vport *vport = mboxq->vport; 2717 2718 /* 2719 * VFI not supported on interface type 0, just do the flogi 2720 * Also continue if the VFI is in use - just use the same one. 2721 */ 2722 if (mboxq->u.mb.mbxStatus && 2723 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2724 LPFC_SLI_INTF_IF_TYPE_0) && 2725 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2726 lpfc_printf_vlog(vport, KERN_ERR, 2727 LOG_MBOX, 2728 "2891 Init VFI mailbox failed 0x%x\n", 2729 mboxq->u.mb.mbxStatus); 2730 mempool_free(mboxq, phba->mbox_mem_pool); 2731 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2732 return; 2733 } 2734 2735 lpfc_initial_flogi(vport); 2736 mempool_free(mboxq, phba->mbox_mem_pool); 2737 return; 2738 } 2739 2740 /** 2741 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2742 * @vport: pointer to lpfc_vport data structure. 2743 * 2744 * This function issue a init_vfi mailbox command to initialize the VFI and 2745 * VPI for the physical port. 2746 */ 2747 void 2748 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2749 { 2750 LPFC_MBOXQ_t *mboxq; 2751 int rc; 2752 struct lpfc_hba *phba = vport->phba; 2753 2754 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2755 if (!mboxq) { 2756 lpfc_printf_vlog(vport, KERN_ERR, 2757 LOG_MBOX, "2892 Failed to allocate " 2758 "init_vfi mailbox\n"); 2759 return; 2760 } 2761 lpfc_init_vfi(mboxq, vport); 2762 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2763 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2764 if (rc == MBX_NOT_FINISHED) { 2765 lpfc_printf_vlog(vport, KERN_ERR, 2766 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2767 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2768 } 2769 } 2770 2771 /** 2772 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2773 * @phba: pointer to lpfc hba data structure. 2774 * @mboxq: pointer to mailbox data structure. 2775 * 2776 * This function handles completion of init vpi mailbox command. 2777 */ 2778 void 2779 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2780 { 2781 struct lpfc_vport *vport = mboxq->vport; 2782 struct lpfc_nodelist *ndlp; 2783 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2784 2785 if (mboxq->u.mb.mbxStatus) { 2786 lpfc_printf_vlog(vport, KERN_ERR, 2787 LOG_MBOX, 2788 "2609 Init VPI mailbox failed 0x%x\n", 2789 mboxq->u.mb.mbxStatus); 2790 mempool_free(mboxq, phba->mbox_mem_pool); 2791 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2792 return; 2793 } 2794 spin_lock_irq(shost->host_lock); 2795 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2796 spin_unlock_irq(shost->host_lock); 2797 2798 /* If this port is physical port or FDISC is done, do reg_vpi */ 2799 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2800 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2801 if (!ndlp) 2802 lpfc_printf_vlog(vport, KERN_ERR, 2803 LOG_DISCOVERY, 2804 "2731 Cannot find fabric " 2805 "controller node\n"); 2806 else 2807 lpfc_register_new_vport(phba, vport, ndlp); 2808 mempool_free(mboxq, phba->mbox_mem_pool); 2809 return; 2810 } 2811 2812 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2813 lpfc_initial_fdisc(vport); 2814 else { 2815 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2816 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2817 "2606 No NPIV Fabric support\n"); 2818 } 2819 mempool_free(mboxq, phba->mbox_mem_pool); 2820 return; 2821 } 2822 2823 /** 2824 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2825 * @vport: pointer to lpfc_vport data structure. 2826 * 2827 * This function issue a init_vpi mailbox command to initialize 2828 * VPI for the vport. 2829 */ 2830 void 2831 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2832 { 2833 LPFC_MBOXQ_t *mboxq; 2834 int rc, vpi; 2835 2836 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2837 vpi = lpfc_alloc_vpi(vport->phba); 2838 if (!vpi) { 2839 lpfc_printf_vlog(vport, KERN_ERR, 2840 LOG_MBOX, 2841 "3303 Failed to obtain vport vpi\n"); 2842 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2843 return; 2844 } 2845 vport->vpi = vpi; 2846 } 2847 2848 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2849 if (!mboxq) { 2850 lpfc_printf_vlog(vport, KERN_ERR, 2851 LOG_MBOX, "2607 Failed to allocate " 2852 "init_vpi mailbox\n"); 2853 return; 2854 } 2855 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2856 mboxq->vport = vport; 2857 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2858 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2859 if (rc == MBX_NOT_FINISHED) { 2860 lpfc_printf_vlog(vport, KERN_ERR, 2861 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2862 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2863 } 2864 } 2865 2866 /** 2867 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2868 * @phba: pointer to lpfc hba data structure. 2869 * 2870 * This function loops through the list of vports on the @phba and issues an 2871 * FDISC if possible. 2872 */ 2873 void 2874 lpfc_start_fdiscs(struct lpfc_hba *phba) 2875 { 2876 struct lpfc_vport **vports; 2877 int i; 2878 2879 vports = lpfc_create_vport_work_array(phba); 2880 if (vports != NULL) { 2881 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2882 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2883 continue; 2884 /* There are no vpi for this vport */ 2885 if (vports[i]->vpi > phba->max_vpi) { 2886 lpfc_vport_set_state(vports[i], 2887 FC_VPORT_FAILED); 2888 continue; 2889 } 2890 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2891 lpfc_vport_set_state(vports[i], 2892 FC_VPORT_LINKDOWN); 2893 continue; 2894 } 2895 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2896 lpfc_issue_init_vpi(vports[i]); 2897 continue; 2898 } 2899 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2900 lpfc_initial_fdisc(vports[i]); 2901 else { 2902 lpfc_vport_set_state(vports[i], 2903 FC_VPORT_NO_FABRIC_SUPP); 2904 lpfc_printf_vlog(vports[i], KERN_ERR, 2905 LOG_ELS, 2906 "0259 No NPIV " 2907 "Fabric support\n"); 2908 } 2909 } 2910 } 2911 lpfc_destroy_vport_work_array(phba, vports); 2912 } 2913 2914 void 2915 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2916 { 2917 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2918 struct lpfc_vport *vport = mboxq->vport; 2919 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2920 2921 /* 2922 * VFI not supported for interface type 0, so ignore any mailbox 2923 * error (except VFI in use) and continue with the discovery. 2924 */ 2925 if (mboxq->u.mb.mbxStatus && 2926 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2927 LPFC_SLI_INTF_IF_TYPE_0) && 2928 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2929 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2930 "2018 REG_VFI mbxStatus error x%x " 2931 "HBA state x%x\n", 2932 mboxq->u.mb.mbxStatus, vport->port_state); 2933 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2934 /* FLOGI failed, use loop map to make discovery list */ 2935 lpfc_disc_list_loopmap(vport); 2936 /* Start discovery */ 2937 lpfc_disc_start(vport); 2938 goto out_free_mem; 2939 } 2940 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2941 goto out_free_mem; 2942 } 2943 2944 /* If the VFI is already registered, there is nothing else to do 2945 * Unless this was a VFI update and we are in PT2PT mode, then 2946 * we should drop through to set the port state to ready. 2947 */ 2948 if (vport->fc_flag & FC_VFI_REGISTERED) 2949 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2950 vport->fc_flag & FC_PT2PT)) 2951 goto out_free_mem; 2952 2953 /* The VPI is implicitly registered when the VFI is registered */ 2954 spin_lock_irq(shost->host_lock); 2955 vport->vpi_state |= LPFC_VPI_REGISTERED; 2956 vport->fc_flag |= FC_VFI_REGISTERED; 2957 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2958 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2959 spin_unlock_irq(shost->host_lock); 2960 2961 /* In case SLI4 FC loopback test, we are ready */ 2962 if ((phba->sli_rev == LPFC_SLI_REV4) && 2963 (phba->link_flag & LS_LOOPBACK_MODE)) { 2964 phba->link_state = LPFC_HBA_READY; 2965 goto out_free_mem; 2966 } 2967 2968 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2969 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2970 "alpacnt:%d LinkState:%x topology:%x\n", 2971 vport->port_state, vport->fc_flag, vport->fc_myDID, 2972 vport->phba->alpa_map[0], 2973 phba->link_state, phba->fc_topology); 2974 2975 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2976 /* 2977 * For private loop or for NPort pt2pt, 2978 * just start discovery and we are done. 2979 */ 2980 if ((vport->fc_flag & FC_PT2PT) || 2981 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2982 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2983 2984 /* Use loop map to make discovery list */ 2985 lpfc_disc_list_loopmap(vport); 2986 /* Start discovery */ 2987 if (vport->fc_flag & FC_PT2PT) 2988 vport->port_state = LPFC_VPORT_READY; 2989 else 2990 lpfc_disc_start(vport); 2991 } else { 2992 lpfc_start_fdiscs(phba); 2993 lpfc_do_scr_ns_plogi(phba, vport); 2994 } 2995 } 2996 2997 out_free_mem: 2998 mempool_free(mboxq, phba->mbox_mem_pool); 2999 if (dmabuf) { 3000 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3001 kfree(dmabuf); 3002 } 3003 return; 3004 } 3005 3006 static void 3007 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3008 { 3009 MAILBOX_t *mb = &pmb->u.mb; 3010 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 3011 struct lpfc_vport *vport = pmb->vport; 3012 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3013 struct serv_parm *sp = &vport->fc_sparam; 3014 uint32_t ed_tov; 3015 3016 /* Check for error */ 3017 if (mb->mbxStatus) { 3018 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3019 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3020 "0319 READ_SPARAM mbxStatus error x%x " 3021 "hba state x%x>\n", 3022 mb->mbxStatus, vport->port_state); 3023 lpfc_linkdown(phba); 3024 goto out; 3025 } 3026 3027 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3028 sizeof (struct serv_parm)); 3029 3030 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3031 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3032 ed_tov = (ed_tov + 999999) / 1000000; 3033 3034 phba->fc_edtov = ed_tov; 3035 phba->fc_ratov = (2 * ed_tov) / 1000; 3036 if (phba->fc_ratov < FF_DEF_RATOV) { 3037 /* RA_TOV should be atleast 10sec for initial flogi */ 3038 phba->fc_ratov = FF_DEF_RATOV; 3039 } 3040 3041 lpfc_update_vport_wwn(vport); 3042 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3043 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3044 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3045 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3046 } 3047 3048 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3049 kfree(mp); 3050 mempool_free(pmb, phba->mbox_mem_pool); 3051 return; 3052 3053 out: 3054 pmb->context1 = NULL; 3055 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3056 kfree(mp); 3057 lpfc_issue_clear_la(phba, vport); 3058 mempool_free(pmb, phba->mbox_mem_pool); 3059 return; 3060 } 3061 3062 static void 3063 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3064 { 3065 struct lpfc_vport *vport = phba->pport; 3066 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3067 struct Scsi_Host *shost; 3068 int i; 3069 struct lpfc_dmabuf *mp; 3070 int rc; 3071 struct fcf_record *fcf_record; 3072 uint32_t fc_flags = 0; 3073 3074 spin_lock_irq(&phba->hbalock); 3075 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3076 3077 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3078 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3079 case LPFC_LINK_SPEED_1GHZ: 3080 case LPFC_LINK_SPEED_2GHZ: 3081 case LPFC_LINK_SPEED_4GHZ: 3082 case LPFC_LINK_SPEED_8GHZ: 3083 case LPFC_LINK_SPEED_10GHZ: 3084 case LPFC_LINK_SPEED_16GHZ: 3085 case LPFC_LINK_SPEED_32GHZ: 3086 break; 3087 default: 3088 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3089 break; 3090 } 3091 } 3092 3093 if (phba->fc_topology && 3094 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3095 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3096 "3314 Toplogy changed was 0x%x is 0x%x\n", 3097 phba->fc_topology, 3098 bf_get(lpfc_mbx_read_top_topology, la)); 3099 phba->fc_topology_changed = 1; 3100 } 3101 3102 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3103 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3104 3105 shost = lpfc_shost_from_vport(vport); 3106 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3107 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3108 3109 /* if npiv is enabled and this adapter supports npiv log 3110 * a message that npiv is not supported in this topology 3111 */ 3112 if (phba->cfg_enable_npiv && phba->max_vpi) 3113 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3114 "1309 Link Up Event npiv not supported in loop " 3115 "topology\n"); 3116 /* Get Loop Map information */ 3117 if (bf_get(lpfc_mbx_read_top_il, la)) 3118 fc_flags |= FC_LBIT; 3119 3120 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3121 i = la->lilpBde64.tus.f.bdeSize; 3122 3123 if (i == 0) { 3124 phba->alpa_map[0] = 0; 3125 } else { 3126 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3127 int numalpa, j, k; 3128 union { 3129 uint8_t pamap[16]; 3130 struct { 3131 uint32_t wd1; 3132 uint32_t wd2; 3133 uint32_t wd3; 3134 uint32_t wd4; 3135 } pa; 3136 } un; 3137 numalpa = phba->alpa_map[0]; 3138 j = 0; 3139 while (j < numalpa) { 3140 memset(un.pamap, 0, 16); 3141 for (k = 1; j < numalpa; k++) { 3142 un.pamap[k - 1] = 3143 phba->alpa_map[j + 1]; 3144 j++; 3145 if (k == 16) 3146 break; 3147 } 3148 /* Link Up Event ALPA map */ 3149 lpfc_printf_log(phba, 3150 KERN_WARNING, 3151 LOG_LINK_EVENT, 3152 "1304 Link Up Event " 3153 "ALPA map Data: x%x " 3154 "x%x x%x x%x\n", 3155 un.pa.wd1, un.pa.wd2, 3156 un.pa.wd3, un.pa.wd4); 3157 } 3158 } 3159 } 3160 } else { 3161 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3162 if (phba->max_vpi && phba->cfg_enable_npiv && 3163 (phba->sli_rev >= LPFC_SLI_REV3)) 3164 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3165 } 3166 vport->fc_myDID = phba->fc_pref_DID; 3167 fc_flags |= FC_LBIT; 3168 } 3169 spin_unlock_irq(&phba->hbalock); 3170 3171 if (fc_flags) { 3172 spin_lock_irq(shost->host_lock); 3173 vport->fc_flag |= fc_flags; 3174 spin_unlock_irq(shost->host_lock); 3175 } 3176 3177 lpfc_linkup(phba); 3178 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3179 if (!sparam_mbox) 3180 goto out; 3181 3182 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3183 if (rc) { 3184 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3185 goto out; 3186 } 3187 sparam_mbox->vport = vport; 3188 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3189 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3190 if (rc == MBX_NOT_FINISHED) { 3191 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3192 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3193 kfree(mp); 3194 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3195 goto out; 3196 } 3197 3198 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3199 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3200 if (!cfglink_mbox) 3201 goto out; 3202 vport->port_state = LPFC_LOCAL_CFG_LINK; 3203 lpfc_config_link(phba, cfglink_mbox); 3204 cfglink_mbox->vport = vport; 3205 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3206 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3207 if (rc == MBX_NOT_FINISHED) { 3208 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3209 goto out; 3210 } 3211 } else { 3212 vport->port_state = LPFC_VPORT_UNKNOWN; 3213 /* 3214 * Add the driver's default FCF record at FCF index 0 now. This 3215 * is phase 1 implementation that support FCF index 0 and driver 3216 * defaults. 3217 */ 3218 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3219 fcf_record = kzalloc(sizeof(struct fcf_record), 3220 GFP_KERNEL); 3221 if (unlikely(!fcf_record)) { 3222 lpfc_printf_log(phba, KERN_ERR, 3223 LOG_MBOX | LOG_SLI, 3224 "2554 Could not allocate memory for " 3225 "fcf record\n"); 3226 rc = -ENODEV; 3227 goto out; 3228 } 3229 3230 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3231 LPFC_FCOE_FCF_DEF_INDEX); 3232 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3233 if (unlikely(rc)) { 3234 lpfc_printf_log(phba, KERN_ERR, 3235 LOG_MBOX | LOG_SLI, 3236 "2013 Could not manually add FCF " 3237 "record 0, status %d\n", rc); 3238 rc = -ENODEV; 3239 kfree(fcf_record); 3240 goto out; 3241 } 3242 kfree(fcf_record); 3243 } 3244 /* 3245 * The driver is expected to do FIP/FCF. Call the port 3246 * and get the FCF Table. 3247 */ 3248 spin_lock_irq(&phba->hbalock); 3249 if (phba->hba_flag & FCF_TS_INPROG) { 3250 spin_unlock_irq(&phba->hbalock); 3251 return; 3252 } 3253 /* This is the initial FCF discovery scan */ 3254 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3255 spin_unlock_irq(&phba->hbalock); 3256 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3257 "2778 Start FCF table scan at linkup\n"); 3258 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3259 LPFC_FCOE_FCF_GET_FIRST); 3260 if (rc) { 3261 spin_lock_irq(&phba->hbalock); 3262 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3263 spin_unlock_irq(&phba->hbalock); 3264 goto out; 3265 } 3266 /* Reset FCF roundrobin bmask for new discovery */ 3267 lpfc_sli4_clear_fcf_rr_bmask(phba); 3268 } 3269 3270 return; 3271 out: 3272 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3273 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3274 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3275 vport->port_state, sparam_mbox, cfglink_mbox); 3276 lpfc_issue_clear_la(phba, vport); 3277 return; 3278 } 3279 3280 static void 3281 lpfc_enable_la(struct lpfc_hba *phba) 3282 { 3283 uint32_t control; 3284 struct lpfc_sli *psli = &phba->sli; 3285 spin_lock_irq(&phba->hbalock); 3286 psli->sli_flag |= LPFC_PROCESS_LA; 3287 if (phba->sli_rev <= LPFC_SLI_REV3) { 3288 control = readl(phba->HCregaddr); 3289 control |= HC_LAINT_ENA; 3290 writel(control, phba->HCregaddr); 3291 readl(phba->HCregaddr); /* flush */ 3292 } 3293 spin_unlock_irq(&phba->hbalock); 3294 } 3295 3296 static void 3297 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3298 { 3299 lpfc_linkdown(phba); 3300 lpfc_enable_la(phba); 3301 lpfc_unregister_unused_fcf(phba); 3302 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3303 } 3304 3305 3306 /* 3307 * This routine handles processing a READ_TOPOLOGY mailbox 3308 * command upon completion. It is setup in the LPFC_MBOXQ 3309 * as the completion routine when the command is 3310 * handed off to the SLI layer. SLI4 only. 3311 */ 3312 void 3313 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3314 { 3315 struct lpfc_vport *vport = pmb->vport; 3316 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3317 struct lpfc_mbx_read_top *la; 3318 struct lpfc_sli_ring *pring; 3319 MAILBOX_t *mb = &pmb->u.mb; 3320 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3321 uint8_t attn_type; 3322 3323 /* Unblock ELS traffic */ 3324 pring = lpfc_phba_elsring(phba); 3325 if (pring) 3326 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3327 3328 /* Check for error */ 3329 if (mb->mbxStatus) { 3330 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3331 "1307 READ_LA mbox error x%x state x%x\n", 3332 mb->mbxStatus, vport->port_state); 3333 lpfc_mbx_issue_link_down(phba); 3334 phba->link_state = LPFC_HBA_ERROR; 3335 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3336 } 3337 3338 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3339 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3340 3341 memcpy(&phba->alpa_map[0], mp->virt, 128); 3342 3343 spin_lock_irq(shost->host_lock); 3344 if (bf_get(lpfc_mbx_read_top_pb, la)) 3345 vport->fc_flag |= FC_BYPASSED_MODE; 3346 else 3347 vport->fc_flag &= ~FC_BYPASSED_MODE; 3348 spin_unlock_irq(shost->host_lock); 3349 3350 if (phba->fc_eventTag <= la->eventTag) { 3351 phba->fc_stat.LinkMultiEvent++; 3352 if (attn_type == LPFC_ATT_LINK_UP) 3353 if (phba->fc_eventTag != 0) 3354 lpfc_linkdown(phba); 3355 } 3356 3357 phba->fc_eventTag = la->eventTag; 3358 if (phba->sli_rev < LPFC_SLI_REV4) { 3359 spin_lock_irq(&phba->hbalock); 3360 if (bf_get(lpfc_mbx_read_top_mm, la)) 3361 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3362 else 3363 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3364 spin_unlock_irq(&phba->hbalock); 3365 } 3366 3367 phba->link_events++; 3368 if ((attn_type == LPFC_ATT_LINK_UP) && 3369 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3370 phba->fc_stat.LinkUp++; 3371 if (phba->link_flag & LS_LOOPBACK_MODE) { 3372 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3373 "1306 Link Up Event in loop back mode " 3374 "x%x received Data: x%x x%x x%x x%x\n", 3375 la->eventTag, phba->fc_eventTag, 3376 bf_get(lpfc_mbx_read_top_alpa_granted, 3377 la), 3378 bf_get(lpfc_mbx_read_top_link_spd, la), 3379 phba->alpa_map[0]); 3380 } else { 3381 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3382 "1303 Link Up Event x%x received " 3383 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3384 la->eventTag, phba->fc_eventTag, 3385 bf_get(lpfc_mbx_read_top_alpa_granted, 3386 la), 3387 bf_get(lpfc_mbx_read_top_link_spd, la), 3388 phba->alpa_map[0], 3389 bf_get(lpfc_mbx_read_top_mm, la), 3390 bf_get(lpfc_mbx_read_top_fa, la), 3391 phba->wait_4_mlo_maint_flg); 3392 } 3393 lpfc_mbx_process_link_up(phba, la); 3394 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3395 attn_type == LPFC_ATT_UNEXP_WWPN) { 3396 phba->fc_stat.LinkDown++; 3397 if (phba->link_flag & LS_LOOPBACK_MODE) 3398 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3399 "1308 Link Down Event in loop back mode " 3400 "x%x received " 3401 "Data: x%x x%x x%x\n", 3402 la->eventTag, phba->fc_eventTag, 3403 phba->pport->port_state, vport->fc_flag); 3404 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3405 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3406 "1313 Link Down UNEXP WWPN Event x%x received " 3407 "Data: x%x x%x x%x x%x x%x\n", 3408 la->eventTag, phba->fc_eventTag, 3409 phba->pport->port_state, vport->fc_flag, 3410 bf_get(lpfc_mbx_read_top_mm, la), 3411 bf_get(lpfc_mbx_read_top_fa, la)); 3412 else 3413 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3414 "1305 Link Down Event x%x received " 3415 "Data: x%x x%x x%x x%x x%x\n", 3416 la->eventTag, phba->fc_eventTag, 3417 phba->pport->port_state, vport->fc_flag, 3418 bf_get(lpfc_mbx_read_top_mm, la), 3419 bf_get(lpfc_mbx_read_top_fa, la)); 3420 lpfc_mbx_issue_link_down(phba); 3421 } 3422 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3423 attn_type == LPFC_ATT_LINK_UP) { 3424 if (phba->link_state != LPFC_LINK_DOWN) { 3425 phba->fc_stat.LinkDown++; 3426 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3427 "1312 Link Down Event x%x received " 3428 "Data: x%x x%x x%x\n", 3429 la->eventTag, phba->fc_eventTag, 3430 phba->pport->port_state, vport->fc_flag); 3431 lpfc_mbx_issue_link_down(phba); 3432 } else 3433 lpfc_enable_la(phba); 3434 3435 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3436 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3437 "Data: x%x x%x x%x\n", 3438 la->eventTag, phba->fc_eventTag, 3439 phba->pport->port_state, vport->fc_flag); 3440 /* 3441 * The cmnd that triggered this will be waiting for this 3442 * signal. 3443 */ 3444 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3445 if (phba->wait_4_mlo_maint_flg) { 3446 phba->wait_4_mlo_maint_flg = 0; 3447 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3448 } 3449 } 3450 3451 if ((phba->sli_rev < LPFC_SLI_REV4) && 3452 bf_get(lpfc_mbx_read_top_fa, la)) { 3453 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3454 lpfc_issue_clear_la(phba, vport); 3455 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3456 "1311 fa %d\n", 3457 bf_get(lpfc_mbx_read_top_fa, la)); 3458 } 3459 3460 lpfc_mbx_cmpl_read_topology_free_mbuf: 3461 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3462 kfree(mp); 3463 mempool_free(pmb, phba->mbox_mem_pool); 3464 return; 3465 } 3466 3467 /* 3468 * This routine handles processing a REG_LOGIN mailbox 3469 * command upon completion. It is setup in the LPFC_MBOXQ 3470 * as the completion routine when the command is 3471 * handed off to the SLI layer. 3472 */ 3473 void 3474 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3475 { 3476 struct lpfc_vport *vport = pmb->vport; 3477 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3478 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3479 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3480 3481 pmb->context1 = NULL; 3482 pmb->context2 = NULL; 3483 3484 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3485 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3486 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3487 kref_read(&ndlp->kref), 3488 ndlp->nlp_usg_map, ndlp); 3489 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3490 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3491 3492 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3493 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3494 /* We rcvd a rscn after issuing this 3495 * mbox reg login, we may have cycled 3496 * back through the state and be 3497 * back at reg login state so this 3498 * mbox needs to be ignored becase 3499 * there is another reg login in 3500 * process. 3501 */ 3502 spin_lock_irq(shost->host_lock); 3503 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3504 spin_unlock_irq(shost->host_lock); 3505 3506 /* 3507 * We cannot leave the RPI registered because 3508 * if we go thru discovery again for this ndlp 3509 * a subsequent REG_RPI will fail. 3510 */ 3511 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3512 lpfc_unreg_rpi(vport, ndlp); 3513 } 3514 3515 /* Call state machine */ 3516 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3517 3518 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3519 kfree(mp); 3520 mempool_free(pmb, phba->mbox_mem_pool); 3521 /* decrement the node reference count held for this callback 3522 * function. 3523 */ 3524 lpfc_nlp_put(ndlp); 3525 3526 return; 3527 } 3528 3529 static void 3530 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3531 { 3532 MAILBOX_t *mb = &pmb->u.mb; 3533 struct lpfc_vport *vport = pmb->vport; 3534 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3535 3536 switch (mb->mbxStatus) { 3537 case 0x0011: 3538 case 0x0020: 3539 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3540 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3541 mb->mbxStatus); 3542 break; 3543 /* If VPI is busy, reset the HBA */ 3544 case 0x9700: 3545 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3546 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3547 vport->vpi, mb->mbxStatus); 3548 if (!(phba->pport->load_flag & FC_UNLOADING)) 3549 lpfc_workq_post_event(phba, NULL, NULL, 3550 LPFC_EVT_RESET_HBA); 3551 } 3552 spin_lock_irq(shost->host_lock); 3553 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3554 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3555 spin_unlock_irq(shost->host_lock); 3556 vport->unreg_vpi_cmpl = VPORT_OK; 3557 mempool_free(pmb, phba->mbox_mem_pool); 3558 lpfc_cleanup_vports_rrqs(vport, NULL); 3559 /* 3560 * This shost reference might have been taken at the beginning of 3561 * lpfc_vport_delete() 3562 */ 3563 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3564 scsi_host_put(shost); 3565 } 3566 3567 int 3568 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3569 { 3570 struct lpfc_hba *phba = vport->phba; 3571 LPFC_MBOXQ_t *mbox; 3572 int rc; 3573 3574 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3575 if (!mbox) 3576 return 1; 3577 3578 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3579 mbox->vport = vport; 3580 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3581 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3582 if (rc == MBX_NOT_FINISHED) { 3583 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3584 "1800 Could not issue unreg_vpi\n"); 3585 mempool_free(mbox, phba->mbox_mem_pool); 3586 vport->unreg_vpi_cmpl = VPORT_ERROR; 3587 return rc; 3588 } 3589 return 0; 3590 } 3591 3592 static void 3593 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3594 { 3595 struct lpfc_vport *vport = pmb->vport; 3596 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3597 MAILBOX_t *mb = &pmb->u.mb; 3598 3599 switch (mb->mbxStatus) { 3600 case 0x0011: 3601 case 0x9601: 3602 case 0x9602: 3603 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3604 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3605 mb->mbxStatus); 3606 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3607 spin_lock_irq(shost->host_lock); 3608 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3609 spin_unlock_irq(shost->host_lock); 3610 vport->fc_myDID = 0; 3611 3612 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3613 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3614 if (phba->nvmet_support) 3615 lpfc_nvmet_update_targetport(phba); 3616 else 3617 lpfc_nvme_update_localport(vport); 3618 } 3619 goto out; 3620 } 3621 3622 spin_lock_irq(shost->host_lock); 3623 vport->vpi_state |= LPFC_VPI_REGISTERED; 3624 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3625 spin_unlock_irq(shost->host_lock); 3626 vport->num_disc_nodes = 0; 3627 /* go thru NPR list and issue ELS PLOGIs */ 3628 if (vport->fc_npr_cnt) 3629 lpfc_els_disc_plogi(vport); 3630 3631 if (!vport->num_disc_nodes) { 3632 spin_lock_irq(shost->host_lock); 3633 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3634 spin_unlock_irq(shost->host_lock); 3635 lpfc_can_disctmo(vport); 3636 } 3637 vport->port_state = LPFC_VPORT_READY; 3638 3639 out: 3640 mempool_free(pmb, phba->mbox_mem_pool); 3641 return; 3642 } 3643 3644 /** 3645 * lpfc_create_static_vport - Read HBA config region to create static vports. 3646 * @phba: pointer to lpfc hba data structure. 3647 * 3648 * This routine issue a DUMP mailbox command for config region 22 to get 3649 * the list of static vports to be created. The function create vports 3650 * based on the information returned from the HBA. 3651 **/ 3652 void 3653 lpfc_create_static_vport(struct lpfc_hba *phba) 3654 { 3655 LPFC_MBOXQ_t *pmb = NULL; 3656 MAILBOX_t *mb; 3657 struct static_vport_info *vport_info; 3658 int mbx_wait_rc = 0, i; 3659 struct fc_vport_identifiers vport_id; 3660 struct fc_vport *new_fc_vport; 3661 struct Scsi_Host *shost; 3662 struct lpfc_vport *vport; 3663 uint16_t offset = 0; 3664 uint8_t *vport_buff; 3665 struct lpfc_dmabuf *mp; 3666 uint32_t byte_count = 0; 3667 3668 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3669 if (!pmb) { 3670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3671 "0542 lpfc_create_static_vport failed to" 3672 " allocate mailbox memory\n"); 3673 return; 3674 } 3675 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3676 mb = &pmb->u.mb; 3677 3678 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3679 if (!vport_info) { 3680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3681 "0543 lpfc_create_static_vport failed to" 3682 " allocate vport_info\n"); 3683 mempool_free(pmb, phba->mbox_mem_pool); 3684 return; 3685 } 3686 3687 vport_buff = (uint8_t *) vport_info; 3688 do { 3689 /* free dma buffer from previous round */ 3690 if (pmb->context1) { 3691 mp = (struct lpfc_dmabuf *)pmb->context1; 3692 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3693 kfree(mp); 3694 } 3695 if (lpfc_dump_static_vport(phba, pmb, offset)) 3696 goto out; 3697 3698 pmb->vport = phba->pport; 3699 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3700 LPFC_MBOX_TMO); 3701 3702 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3703 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3704 "0544 lpfc_create_static_vport failed to" 3705 " issue dump mailbox command ret 0x%x " 3706 "status 0x%x\n", 3707 mbx_wait_rc, mb->mbxStatus); 3708 goto out; 3709 } 3710 3711 if (phba->sli_rev == LPFC_SLI_REV4) { 3712 byte_count = pmb->u.mqe.un.mb_words[5]; 3713 mp = (struct lpfc_dmabuf *)pmb->context1; 3714 if (byte_count > sizeof(struct static_vport_info) - 3715 offset) 3716 byte_count = sizeof(struct static_vport_info) 3717 - offset; 3718 memcpy(vport_buff + offset, mp->virt, byte_count); 3719 offset += byte_count; 3720 } else { 3721 if (mb->un.varDmp.word_cnt > 3722 sizeof(struct static_vport_info) - offset) 3723 mb->un.varDmp.word_cnt = 3724 sizeof(struct static_vport_info) 3725 - offset; 3726 byte_count = mb->un.varDmp.word_cnt; 3727 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3728 vport_buff + offset, 3729 byte_count); 3730 3731 offset += byte_count; 3732 } 3733 3734 } while (byte_count && 3735 offset < sizeof(struct static_vport_info)); 3736 3737 3738 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3739 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3740 != VPORT_INFO_REV)) { 3741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3742 "0545 lpfc_create_static_vport bad" 3743 " information header 0x%x 0x%x\n", 3744 le32_to_cpu(vport_info->signature), 3745 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3746 3747 goto out; 3748 } 3749 3750 shost = lpfc_shost_from_vport(phba->pport); 3751 3752 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3753 memset(&vport_id, 0, sizeof(vport_id)); 3754 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3755 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3756 if (!vport_id.port_name || !vport_id.node_name) 3757 continue; 3758 3759 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3760 vport_id.vport_type = FC_PORTTYPE_NPIV; 3761 vport_id.disable = false; 3762 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3763 3764 if (!new_fc_vport) { 3765 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3766 "0546 lpfc_create_static_vport failed to" 3767 " create vport\n"); 3768 continue; 3769 } 3770 3771 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3772 vport->vport_flag |= STATIC_VPORT; 3773 } 3774 3775 out: 3776 kfree(vport_info); 3777 if (mbx_wait_rc != MBX_TIMEOUT) { 3778 if (pmb->context1) { 3779 mp = (struct lpfc_dmabuf *)pmb->context1; 3780 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3781 kfree(mp); 3782 } 3783 mempool_free(pmb, phba->mbox_mem_pool); 3784 } 3785 3786 return; 3787 } 3788 3789 /* 3790 * This routine handles processing a Fabric REG_LOGIN mailbox 3791 * command upon completion. It is setup in the LPFC_MBOXQ 3792 * as the completion routine when the command is 3793 * handed off to the SLI layer. 3794 */ 3795 void 3796 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3797 { 3798 struct lpfc_vport *vport = pmb->vport; 3799 MAILBOX_t *mb = &pmb->u.mb; 3800 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3801 struct lpfc_nodelist *ndlp; 3802 struct Scsi_Host *shost; 3803 3804 ndlp = (struct lpfc_nodelist *) pmb->context2; 3805 pmb->context1 = NULL; 3806 pmb->context2 = NULL; 3807 3808 if (mb->mbxStatus) { 3809 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3810 "0258 Register Fabric login error: 0x%x\n", 3811 mb->mbxStatus); 3812 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3813 kfree(mp); 3814 mempool_free(pmb, phba->mbox_mem_pool); 3815 3816 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3817 /* FLOGI failed, use loop map to make discovery list */ 3818 lpfc_disc_list_loopmap(vport); 3819 3820 /* Start discovery */ 3821 lpfc_disc_start(vport); 3822 /* Decrement the reference count to ndlp after the 3823 * reference to the ndlp are done. 3824 */ 3825 lpfc_nlp_put(ndlp); 3826 return; 3827 } 3828 3829 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3830 /* Decrement the reference count to ndlp after the reference 3831 * to the ndlp are done. 3832 */ 3833 lpfc_nlp_put(ndlp); 3834 return; 3835 } 3836 3837 if (phba->sli_rev < LPFC_SLI_REV4) 3838 ndlp->nlp_rpi = mb->un.varWords[0]; 3839 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3840 ndlp->nlp_type |= NLP_FABRIC; 3841 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3842 3843 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3844 /* when physical port receive logo donot start 3845 * vport discovery */ 3846 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3847 lpfc_start_fdiscs(phba); 3848 else { 3849 shost = lpfc_shost_from_vport(vport); 3850 spin_lock_irq(shost->host_lock); 3851 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3852 spin_unlock_irq(shost->host_lock); 3853 } 3854 lpfc_do_scr_ns_plogi(phba, vport); 3855 } 3856 3857 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3858 kfree(mp); 3859 mempool_free(pmb, phba->mbox_mem_pool); 3860 3861 /* Drop the reference count from the mbox at the end after 3862 * all the current reference to the ndlp have been done. 3863 */ 3864 lpfc_nlp_put(ndlp); 3865 return; 3866 } 3867 3868 /* 3869 * This routine will issue a GID_FT for each FC4 Type supported 3870 * by the driver. ALL GID_FTs must complete before discovery is started. 3871 */ 3872 int 3873 lpfc_issue_gidft(struct lpfc_vport *vport) 3874 { 3875 struct lpfc_hba *phba = vport->phba; 3876 3877 /* Good status, issue CT Request to NameServer */ 3878 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3879 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3880 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3881 /* Cannot issue NameServer FCP Query, so finish up 3882 * discovery 3883 */ 3884 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3885 "0604 %s FC TYPE %x %s\n", 3886 "Failed to issue GID_FT to ", 3887 FC_TYPE_FCP, 3888 "Finishing discovery."); 3889 return 0; 3890 } 3891 vport->gidft_inp++; 3892 } 3893 3894 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3895 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3896 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3897 /* Cannot issue NameServer NVME Query, so finish up 3898 * discovery 3899 */ 3900 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3901 "0605 %s FC_TYPE %x %s %d\n", 3902 "Failed to issue GID_FT to ", 3903 FC_TYPE_NVME, 3904 "Finishing discovery: gidftinp ", 3905 vport->gidft_inp); 3906 if (vport->gidft_inp == 0) 3907 return 0; 3908 } else 3909 vport->gidft_inp++; 3910 } 3911 return vport->gidft_inp; 3912 } 3913 3914 /* 3915 * This routine handles processing a NameServer REG_LOGIN mailbox 3916 * command upon completion. It is setup in the LPFC_MBOXQ 3917 * as the completion routine when the command is 3918 * handed off to the SLI layer. 3919 */ 3920 void 3921 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3922 { 3923 MAILBOX_t *mb = &pmb->u.mb; 3924 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3925 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3926 struct lpfc_vport *vport = pmb->vport; 3927 3928 pmb->context1 = NULL; 3929 pmb->context2 = NULL; 3930 vport->gidft_inp = 0; 3931 3932 if (mb->mbxStatus) { 3933 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3934 "0260 Register NameServer error: 0x%x\n", 3935 mb->mbxStatus); 3936 3937 out: 3938 /* decrement the node reference count held for this 3939 * callback function. 3940 */ 3941 lpfc_nlp_put(ndlp); 3942 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3943 kfree(mp); 3944 mempool_free(pmb, phba->mbox_mem_pool); 3945 3946 /* If no other thread is using the ndlp, free it */ 3947 lpfc_nlp_not_used(ndlp); 3948 3949 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3950 /* 3951 * RegLogin failed, use loop map to make discovery 3952 * list 3953 */ 3954 lpfc_disc_list_loopmap(vport); 3955 3956 /* Start discovery */ 3957 lpfc_disc_start(vport); 3958 return; 3959 } 3960 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3961 return; 3962 } 3963 3964 if (phba->sli_rev < LPFC_SLI_REV4) 3965 ndlp->nlp_rpi = mb->un.varWords[0]; 3966 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3967 ndlp->nlp_type |= NLP_FABRIC; 3968 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3969 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3970 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3971 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3972 kref_read(&ndlp->kref), 3973 ndlp->nlp_usg_map, ndlp); 3974 3975 if (vport->port_state < LPFC_VPORT_READY) { 3976 /* Link up discovery requires Fabric registration. */ 3977 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3978 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3979 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3980 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3981 3982 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3983 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 3984 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 3985 3986 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3987 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 3988 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 3989 FC_TYPE_NVME); 3990 3991 /* Issue SCR just before NameServer GID_FT Query */ 3992 lpfc_issue_els_scr(vport, SCR_DID, 0); 3993 } 3994 3995 vport->fc_ns_retry = 0; 3996 if (lpfc_issue_gidft(vport) == 0) 3997 goto out; 3998 3999 /* 4000 * At this point in time we may need to wait for multiple 4001 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4002 * 4003 * decrement the node reference count held for this 4004 * callback function. 4005 */ 4006 lpfc_nlp_put(ndlp); 4007 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4008 kfree(mp); 4009 mempool_free(pmb, phba->mbox_mem_pool); 4010 4011 return; 4012 } 4013 4014 static void 4015 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4016 { 4017 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4018 struct fc_rport *rport; 4019 struct lpfc_rport_data *rdata; 4020 struct fc_rport_identifiers rport_ids; 4021 struct lpfc_hba *phba = vport->phba; 4022 4023 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4024 return; 4025 4026 /* Remote port has reappeared. Re-register w/ FC transport */ 4027 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4028 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4029 rport_ids.port_id = ndlp->nlp_DID; 4030 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4031 4032 /* 4033 * We leave our node pointer in rport->dd_data when we unregister a 4034 * FCP target port. But fc_remote_port_add zeros the space to which 4035 * rport->dd_data points. So, if we're reusing a previously 4036 * registered port, drop the reference that we took the last time we 4037 * registered the port. 4038 */ 4039 rport = ndlp->rport; 4040 if (rport) { 4041 rdata = rport->dd_data; 4042 /* break the link before dropping the ref */ 4043 ndlp->rport = NULL; 4044 if (rdata) { 4045 if (rdata->pnode == ndlp) 4046 lpfc_nlp_put(ndlp); 4047 rdata->pnode = NULL; 4048 } 4049 /* drop reference for earlier registeration */ 4050 put_device(&rport->dev); 4051 } 4052 4053 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4054 "rport add: did:x%x flg:x%x type x%x", 4055 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4056 4057 /* Don't add the remote port if unloading. */ 4058 if (vport->load_flag & FC_UNLOADING) 4059 return; 4060 4061 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4062 if (!rport || !get_device(&rport->dev)) { 4063 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4064 "Warning: fc_remote_port_add failed\n"); 4065 return; 4066 } 4067 4068 /* initialize static port data */ 4069 rport->maxframe_size = ndlp->nlp_maxframe; 4070 rport->supported_classes = ndlp->nlp_class_sup; 4071 rdata = rport->dd_data; 4072 rdata->pnode = lpfc_nlp_get(ndlp); 4073 4074 if (ndlp->nlp_type & NLP_FCP_TARGET) 4075 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4076 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4077 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4078 4079 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4080 fc_remote_port_rolechg(rport, rport_ids.roles); 4081 4082 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4083 "3183 rport register x%06x, rport %p role x%x\n", 4084 ndlp->nlp_DID, rport, rport_ids.roles); 4085 4086 if ((rport->scsi_target_id != -1) && 4087 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4088 ndlp->nlp_sid = rport->scsi_target_id; 4089 } 4090 return; 4091 } 4092 4093 static void 4094 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4095 { 4096 struct fc_rport *rport = ndlp->rport; 4097 struct lpfc_vport *vport = ndlp->vport; 4098 struct lpfc_hba *phba = vport->phba; 4099 4100 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4101 return; 4102 4103 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4104 "rport delete: did:x%x flg:x%x type x%x", 4105 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4106 4107 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4108 "3184 rport unregister x%06x, rport %p\n", 4109 ndlp->nlp_DID, rport); 4110 4111 fc_remote_port_delete(rport); 4112 4113 return; 4114 } 4115 4116 static void 4117 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4118 { 4119 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4120 4121 spin_lock_irq(shost->host_lock); 4122 switch (state) { 4123 case NLP_STE_UNUSED_NODE: 4124 vport->fc_unused_cnt += count; 4125 break; 4126 case NLP_STE_PLOGI_ISSUE: 4127 vport->fc_plogi_cnt += count; 4128 break; 4129 case NLP_STE_ADISC_ISSUE: 4130 vport->fc_adisc_cnt += count; 4131 break; 4132 case NLP_STE_REG_LOGIN_ISSUE: 4133 vport->fc_reglogin_cnt += count; 4134 break; 4135 case NLP_STE_PRLI_ISSUE: 4136 vport->fc_prli_cnt += count; 4137 break; 4138 case NLP_STE_UNMAPPED_NODE: 4139 vport->fc_unmap_cnt += count; 4140 break; 4141 case NLP_STE_MAPPED_NODE: 4142 vport->fc_map_cnt += count; 4143 break; 4144 case NLP_STE_NPR_NODE: 4145 if (vport->fc_npr_cnt == 0 && count == -1) 4146 vport->fc_npr_cnt = 0; 4147 else 4148 vport->fc_npr_cnt += count; 4149 break; 4150 } 4151 spin_unlock_irq(shost->host_lock); 4152 } 4153 4154 static void 4155 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4156 int old_state, int new_state) 4157 { 4158 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4159 4160 if (new_state == NLP_STE_UNMAPPED_NODE) { 4161 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4162 ndlp->nlp_type |= NLP_FC_NODE; 4163 } 4164 if (new_state == NLP_STE_MAPPED_NODE) 4165 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4166 if (new_state == NLP_STE_NPR_NODE) 4167 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4168 4169 /* FCP and NVME Transport interface */ 4170 if ((old_state == NLP_STE_MAPPED_NODE || 4171 old_state == NLP_STE_UNMAPPED_NODE)) { 4172 if (ndlp->rport) { 4173 vport->phba->nport_event_cnt++; 4174 lpfc_unregister_remote_port(ndlp); 4175 } 4176 4177 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4178 vport->phba->nport_event_cnt++; 4179 if (vport->phba->nvmet_support == 0) { 4180 /* Start devloss if target. */ 4181 if (ndlp->nlp_type & NLP_NVME_TARGET) 4182 lpfc_nvme_unregister_port(vport, ndlp); 4183 } else { 4184 /* NVMET has no upcall. */ 4185 lpfc_nlp_put(ndlp); 4186 } 4187 } 4188 } 4189 4190 /* FCP and NVME Transport interfaces */ 4191 4192 if (new_state == NLP_STE_MAPPED_NODE || 4193 new_state == NLP_STE_UNMAPPED_NODE) { 4194 if (ndlp->nlp_fc4_type & NLP_FC4_FCP || 4195 ndlp->nlp_DID == Fabric_DID || 4196 ndlp->nlp_DID == NameServer_DID || 4197 ndlp->nlp_DID == FDMI_DID) { 4198 vport->phba->nport_event_cnt++; 4199 /* 4200 * Tell the fc transport about the port, if we haven't 4201 * already. If we have, and it's a scsi entity, be 4202 */ 4203 lpfc_register_remote_port(vport, ndlp); 4204 } 4205 /* Notify the NVME transport of this new rport. */ 4206 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4207 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4208 if (vport->phba->nvmet_support == 0) { 4209 /* Register this rport with the transport. 4210 * Only NVME Target Rports are registered with 4211 * the transport. 4212 */ 4213 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4214 vport->phba->nport_event_cnt++; 4215 lpfc_nvme_register_port(vport, ndlp); 4216 } 4217 } else { 4218 /* Just take an NDLP ref count since the 4219 * target does not register rports. 4220 */ 4221 lpfc_nlp_get(ndlp); 4222 } 4223 } 4224 } 4225 4226 if ((new_state == NLP_STE_MAPPED_NODE) && 4227 (vport->stat_data_enabled)) { 4228 /* 4229 * A new target is discovered, if there is no buffer for 4230 * statistical data collection allocate buffer. 4231 */ 4232 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4233 sizeof(struct lpfc_scsicmd_bkt), 4234 GFP_KERNEL); 4235 4236 if (!ndlp->lat_data) 4237 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4238 "0286 lpfc_nlp_state_cleanup failed to " 4239 "allocate statistical data buffer DID " 4240 "0x%x\n", ndlp->nlp_DID); 4241 } 4242 /* 4243 * If the node just added to Mapped list was an FCP target, 4244 * but the remote port registration failed or assigned a target 4245 * id outside the presentable range - move the node to the 4246 * Unmapped List. 4247 */ 4248 if ((new_state == NLP_STE_MAPPED_NODE) && 4249 (ndlp->nlp_type & NLP_FCP_TARGET) && 4250 (!ndlp->rport || 4251 ndlp->rport->scsi_target_id == -1 || 4252 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4253 spin_lock_irq(shost->host_lock); 4254 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4255 spin_unlock_irq(shost->host_lock); 4256 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4257 } 4258 } 4259 4260 static char * 4261 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4262 { 4263 static char *states[] = { 4264 [NLP_STE_UNUSED_NODE] = "UNUSED", 4265 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4266 [NLP_STE_ADISC_ISSUE] = "ADISC", 4267 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4268 [NLP_STE_PRLI_ISSUE] = "PRLI", 4269 [NLP_STE_LOGO_ISSUE] = "LOGO", 4270 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4271 [NLP_STE_MAPPED_NODE] = "MAPPED", 4272 [NLP_STE_NPR_NODE] = "NPR", 4273 }; 4274 4275 if (state < NLP_STE_MAX_STATE && states[state]) 4276 strlcpy(buffer, states[state], size); 4277 else 4278 snprintf(buffer, size, "unknown (%d)", state); 4279 return buffer; 4280 } 4281 4282 void 4283 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4284 int state) 4285 { 4286 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4287 int old_state = ndlp->nlp_state; 4288 char name1[16], name2[16]; 4289 4290 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4291 "0904 NPort state transition x%06x, %s -> %s\n", 4292 ndlp->nlp_DID, 4293 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4294 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4295 4296 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4297 "node statechg did:x%x old:%d ste:%d", 4298 ndlp->nlp_DID, old_state, state); 4299 4300 if (old_state == NLP_STE_NPR_NODE && 4301 state != NLP_STE_NPR_NODE) 4302 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4303 if (old_state == NLP_STE_UNMAPPED_NODE) { 4304 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4305 ndlp->nlp_type &= ~NLP_FC_NODE; 4306 } 4307 4308 if (list_empty(&ndlp->nlp_listp)) { 4309 spin_lock_irq(shost->host_lock); 4310 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4311 spin_unlock_irq(shost->host_lock); 4312 } else if (old_state) 4313 lpfc_nlp_counters(vport, old_state, -1); 4314 4315 ndlp->nlp_state = state; 4316 lpfc_nlp_counters(vport, state, 1); 4317 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4318 } 4319 4320 void 4321 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4322 { 4323 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4324 4325 if (list_empty(&ndlp->nlp_listp)) { 4326 spin_lock_irq(shost->host_lock); 4327 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4328 spin_unlock_irq(shost->host_lock); 4329 } 4330 } 4331 4332 void 4333 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4334 { 4335 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4336 4337 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4338 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4339 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4340 spin_lock_irq(shost->host_lock); 4341 list_del_init(&ndlp->nlp_listp); 4342 spin_unlock_irq(shost->host_lock); 4343 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4344 NLP_STE_UNUSED_NODE); 4345 } 4346 4347 static void 4348 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4349 { 4350 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4351 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4352 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4353 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4354 NLP_STE_UNUSED_NODE); 4355 } 4356 /** 4357 * lpfc_initialize_node - Initialize all fields of node object 4358 * @vport: Pointer to Virtual Port object. 4359 * @ndlp: Pointer to FC node object. 4360 * @did: FC_ID of the node. 4361 * 4362 * This function is always called when node object need to be initialized. 4363 * It initializes all the fields of the node object. Although the reference 4364 * to phba from @ndlp can be obtained indirectly through it's reference to 4365 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4366 * to the life-span of the @ndlp might go beyond the existence of @vport as 4367 * the final release of ndlp is determined by its reference count. And, the 4368 * operation on @ndlp needs the reference to phba. 4369 **/ 4370 static inline void 4371 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4372 uint32_t did) 4373 { 4374 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4375 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4376 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4377 ndlp->nlp_DID = did; 4378 ndlp->vport = vport; 4379 ndlp->phba = vport->phba; 4380 ndlp->nlp_sid = NLP_NO_SID; 4381 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4382 kref_init(&ndlp->kref); 4383 NLP_INT_NODE_ACT(ndlp); 4384 atomic_set(&ndlp->cmd_pending, 0); 4385 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4386 } 4387 4388 struct lpfc_nodelist * 4389 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4390 int state) 4391 { 4392 struct lpfc_hba *phba = vport->phba; 4393 uint32_t did; 4394 unsigned long flags; 4395 unsigned long *active_rrqs_xri_bitmap = NULL; 4396 int rpi = LPFC_RPI_ALLOC_ERROR; 4397 4398 if (!ndlp) 4399 return NULL; 4400 4401 if (phba->sli_rev == LPFC_SLI_REV4) { 4402 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4403 if (rpi == LPFC_RPI_ALLOC_ERROR) 4404 return NULL; 4405 } 4406 4407 spin_lock_irqsave(&phba->ndlp_lock, flags); 4408 /* The ndlp should not be in memory free mode */ 4409 if (NLP_CHK_FREE_REQ(ndlp)) { 4410 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4411 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4412 "0277 lpfc_enable_node: ndlp:x%p " 4413 "usgmap:x%x refcnt:%d\n", 4414 (void *)ndlp, ndlp->nlp_usg_map, 4415 kref_read(&ndlp->kref)); 4416 goto free_rpi; 4417 } 4418 /* The ndlp should not already be in active mode */ 4419 if (NLP_CHK_NODE_ACT(ndlp)) { 4420 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4421 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4422 "0278 lpfc_enable_node: ndlp:x%p " 4423 "usgmap:x%x refcnt:%d\n", 4424 (void *)ndlp, ndlp->nlp_usg_map, 4425 kref_read(&ndlp->kref)); 4426 goto free_rpi; 4427 } 4428 4429 /* Keep the original DID */ 4430 did = ndlp->nlp_DID; 4431 if (phba->sli_rev == LPFC_SLI_REV4) 4432 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4433 4434 /* re-initialize ndlp except of ndlp linked list pointer */ 4435 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4436 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4437 lpfc_initialize_node(vport, ndlp, did); 4438 4439 if (phba->sli_rev == LPFC_SLI_REV4) 4440 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4441 4442 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4443 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4444 ndlp->nlp_rpi = rpi; 4445 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4446 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4447 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4448 ndlp->nlp_flag, 4449 kref_read(&ndlp->kref), 4450 ndlp->nlp_usg_map, ndlp); 4451 } 4452 4453 4454 if (state != NLP_STE_UNUSED_NODE) 4455 lpfc_nlp_set_state(vport, ndlp, state); 4456 4457 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4458 "node enable: did:x%x", 4459 ndlp->nlp_DID, 0, 0); 4460 return ndlp; 4461 4462 free_rpi: 4463 if (phba->sli_rev == LPFC_SLI_REV4) 4464 lpfc_sli4_free_rpi(vport->phba, rpi); 4465 return NULL; 4466 } 4467 4468 void 4469 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4470 { 4471 /* 4472 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4473 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4474 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4475 * until ALL other outstanding threads have completed. We check 4476 * that the ndlp not already in the UNUSED state before we proceed. 4477 */ 4478 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4479 return; 4480 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4481 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4482 lpfc_cleanup_vports_rrqs(vport, ndlp); 4483 lpfc_unreg_rpi(vport, ndlp); 4484 } 4485 4486 lpfc_nlp_put(ndlp); 4487 return; 4488 } 4489 4490 /* 4491 * Start / ReStart rescue timer for Discovery / RSCN handling 4492 */ 4493 void 4494 lpfc_set_disctmo(struct lpfc_vport *vport) 4495 { 4496 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4497 struct lpfc_hba *phba = vport->phba; 4498 uint32_t tmo; 4499 4500 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4501 /* For FAN, timeout should be greater than edtov */ 4502 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4503 } else { 4504 /* Normal discovery timeout should be > than ELS/CT timeout 4505 * FC spec states we need 3 * ratov for CT requests 4506 */ 4507 tmo = ((phba->fc_ratov * 3) + 3); 4508 } 4509 4510 4511 if (!timer_pending(&vport->fc_disctmo)) { 4512 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4513 "set disc timer: tmo:x%x state:x%x flg:x%x", 4514 tmo, vport->port_state, vport->fc_flag); 4515 } 4516 4517 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4518 spin_lock_irq(shost->host_lock); 4519 vport->fc_flag |= FC_DISC_TMO; 4520 spin_unlock_irq(shost->host_lock); 4521 4522 /* Start Discovery Timer state <hba_state> */ 4523 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4524 "0247 Start Discovery Timer state x%x " 4525 "Data: x%x x%lx x%x x%x\n", 4526 vport->port_state, tmo, 4527 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4528 vport->fc_adisc_cnt); 4529 4530 return; 4531 } 4532 4533 /* 4534 * Cancel rescue timer for Discovery / RSCN handling 4535 */ 4536 int 4537 lpfc_can_disctmo(struct lpfc_vport *vport) 4538 { 4539 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4540 unsigned long iflags; 4541 4542 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4543 "can disc timer: state:x%x rtry:x%x flg:x%x", 4544 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4545 4546 /* Turn off discovery timer if its running */ 4547 if (vport->fc_flag & FC_DISC_TMO) { 4548 spin_lock_irqsave(shost->host_lock, iflags); 4549 vport->fc_flag &= ~FC_DISC_TMO; 4550 spin_unlock_irqrestore(shost->host_lock, iflags); 4551 del_timer_sync(&vport->fc_disctmo); 4552 spin_lock_irqsave(&vport->work_port_lock, iflags); 4553 vport->work_port_events &= ~WORKER_DISC_TMO; 4554 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4555 } 4556 4557 /* Cancel Discovery Timer state <hba_state> */ 4558 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4559 "0248 Cancel Discovery Timer state x%x " 4560 "Data: x%x x%x x%x\n", 4561 vport->port_state, vport->fc_flag, 4562 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4563 return 0; 4564 } 4565 4566 /* 4567 * Check specified ring for outstanding IOCB on the SLI queue 4568 * Return true if iocb matches the specified nport 4569 */ 4570 int 4571 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4572 struct lpfc_sli_ring *pring, 4573 struct lpfc_iocbq *iocb, 4574 struct lpfc_nodelist *ndlp) 4575 { 4576 IOCB_t *icmd = &iocb->iocb; 4577 struct lpfc_vport *vport = ndlp->vport; 4578 4579 if (iocb->vport != vport) 4580 return 0; 4581 4582 if (pring->ringno == LPFC_ELS_RING) { 4583 switch (icmd->ulpCommand) { 4584 case CMD_GEN_REQUEST64_CR: 4585 if (iocb->context_un.ndlp == ndlp) 4586 return 1; 4587 case CMD_ELS_REQUEST64_CR: 4588 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4589 return 1; 4590 case CMD_XMIT_ELS_RSP64_CX: 4591 if (iocb->context1 == (uint8_t *) ndlp) 4592 return 1; 4593 } 4594 } else if (pring->ringno == LPFC_FCP_RING) { 4595 /* Skip match check if waiting to relogin to FCP target */ 4596 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4597 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4598 return 0; 4599 } 4600 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4601 return 1; 4602 } 4603 } 4604 return 0; 4605 } 4606 4607 static void 4608 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4609 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4610 struct list_head *dequeue_list) 4611 { 4612 struct lpfc_iocbq *iocb, *next_iocb; 4613 4614 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4615 /* Check to see if iocb matches the nport */ 4616 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4617 /* match, dequeue */ 4618 list_move_tail(&iocb->list, dequeue_list); 4619 } 4620 } 4621 4622 static void 4623 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4624 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4625 { 4626 struct lpfc_sli *psli = &phba->sli; 4627 uint32_t i; 4628 4629 spin_lock_irq(&phba->hbalock); 4630 for (i = 0; i < psli->num_rings; i++) 4631 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4632 dequeue_list); 4633 spin_unlock_irq(&phba->hbalock); 4634 } 4635 4636 static void 4637 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4638 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4639 { 4640 struct lpfc_sli_ring *pring; 4641 struct lpfc_queue *qp = NULL; 4642 4643 spin_lock_irq(&phba->hbalock); 4644 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4645 pring = qp->pring; 4646 if (!pring) 4647 continue; 4648 spin_lock(&pring->ring_lock); 4649 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4650 spin_unlock(&pring->ring_lock); 4651 } 4652 spin_unlock_irq(&phba->hbalock); 4653 } 4654 4655 /* 4656 * Free resources / clean up outstanding I/Os 4657 * associated with nlp_rpi in the LPFC_NODELIST entry. 4658 */ 4659 static int 4660 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4661 { 4662 LIST_HEAD(completions); 4663 4664 lpfc_fabric_abort_nport(ndlp); 4665 4666 /* 4667 * Everything that matches on txcmplq will be returned 4668 * by firmware with a no rpi error. 4669 */ 4670 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4671 if (phba->sli_rev != LPFC_SLI_REV4) 4672 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4673 else 4674 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4675 } 4676 4677 /* Cancel all the IOCBs from the completions list */ 4678 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4679 IOERR_SLI_ABORTED); 4680 4681 return 0; 4682 } 4683 4684 /** 4685 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4686 * @phba: Pointer to HBA context object. 4687 * @pmb: Pointer to mailbox object. 4688 * 4689 * This function will issue an ELS LOGO command after completing 4690 * the UNREG_RPI. 4691 **/ 4692 static void 4693 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4694 { 4695 struct lpfc_vport *vport = pmb->vport; 4696 struct lpfc_nodelist *ndlp; 4697 4698 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4699 if (!ndlp) 4700 return; 4701 lpfc_issue_els_logo(vport, ndlp, 0); 4702 mempool_free(pmb, phba->mbox_mem_pool); 4703 } 4704 4705 /* 4706 * Free rpi associated with LPFC_NODELIST entry. 4707 * This routine is called from lpfc_freenode(), when we are removing 4708 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4709 * LOGO that completes successfully, and we are waiting to PLOGI back 4710 * to the remote NPort. In addition, it is called after we receive 4711 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4712 * we are waiting to PLOGI back to the remote NPort. 4713 */ 4714 int 4715 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4716 { 4717 struct lpfc_hba *phba = vport->phba; 4718 LPFC_MBOXQ_t *mbox; 4719 int rc, acc_plogi = 1; 4720 uint16_t rpi; 4721 4722 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4723 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4724 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4725 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4726 "3366 RPI x%x needs to be " 4727 "unregistered nlp_flag x%x " 4728 "did x%x\n", 4729 ndlp->nlp_rpi, ndlp->nlp_flag, 4730 ndlp->nlp_DID); 4731 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4732 if (mbox) { 4733 /* SLI4 ports require the physical rpi value. */ 4734 rpi = ndlp->nlp_rpi; 4735 if (phba->sli_rev == LPFC_SLI_REV4) 4736 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4737 4738 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4739 mbox->vport = vport; 4740 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4741 mbox->context1 = ndlp; 4742 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4743 } else { 4744 if (phba->sli_rev == LPFC_SLI_REV4 && 4745 (!(vport->load_flag & FC_UNLOADING)) && 4746 (bf_get(lpfc_sli_intf_if_type, 4747 &phba->sli4_hba.sli_intf) == 4748 LPFC_SLI_INTF_IF_TYPE_2) && 4749 (kref_read(&ndlp->kref) > 0)) { 4750 mbox->context1 = lpfc_nlp_get(ndlp); 4751 mbox->mbox_cmpl = 4752 lpfc_sli4_unreg_rpi_cmpl_clr; 4753 /* 4754 * accept PLOGIs after unreg_rpi_cmpl 4755 */ 4756 acc_plogi = 0; 4757 } else 4758 mbox->mbox_cmpl = 4759 lpfc_sli_def_mbox_cmpl; 4760 } 4761 4762 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4763 if (rc == MBX_NOT_FINISHED) { 4764 mempool_free(mbox, phba->mbox_mem_pool); 4765 acc_plogi = 1; 4766 } 4767 } 4768 lpfc_no_rpi(phba, ndlp); 4769 4770 if (phba->sli_rev != LPFC_SLI_REV4) 4771 ndlp->nlp_rpi = 0; 4772 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4773 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4774 if (acc_plogi) 4775 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4776 return 1; 4777 } 4778 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4779 return 0; 4780 } 4781 4782 /** 4783 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4784 * @phba: pointer to lpfc hba data structure. 4785 * 4786 * This routine is invoked to unregister all the currently registered RPIs 4787 * to the HBA. 4788 **/ 4789 void 4790 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4791 { 4792 struct lpfc_vport **vports; 4793 struct lpfc_nodelist *ndlp; 4794 struct Scsi_Host *shost; 4795 int i; 4796 4797 vports = lpfc_create_vport_work_array(phba); 4798 if (!vports) { 4799 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4800 "2884 Vport array allocation failed \n"); 4801 return; 4802 } 4803 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4804 shost = lpfc_shost_from_vport(vports[i]); 4805 spin_lock_irq(shost->host_lock); 4806 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4807 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4808 /* The mempool_alloc might sleep */ 4809 spin_unlock_irq(shost->host_lock); 4810 lpfc_unreg_rpi(vports[i], ndlp); 4811 spin_lock_irq(shost->host_lock); 4812 } 4813 } 4814 spin_unlock_irq(shost->host_lock); 4815 } 4816 lpfc_destroy_vport_work_array(phba, vports); 4817 } 4818 4819 void 4820 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4821 { 4822 struct lpfc_hba *phba = vport->phba; 4823 LPFC_MBOXQ_t *mbox; 4824 int rc; 4825 4826 if (phba->sli_rev == LPFC_SLI_REV4) { 4827 lpfc_sli4_unreg_all_rpis(vport); 4828 return; 4829 } 4830 4831 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4832 if (mbox) { 4833 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4834 mbox); 4835 mbox->vport = vport; 4836 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4837 mbox->context1 = NULL; 4838 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4839 if (rc != MBX_TIMEOUT) 4840 mempool_free(mbox, phba->mbox_mem_pool); 4841 4842 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4843 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4844 "1836 Could not issue " 4845 "unreg_login(all_rpis) status %d\n", rc); 4846 } 4847 } 4848 4849 void 4850 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4851 { 4852 struct lpfc_hba *phba = vport->phba; 4853 LPFC_MBOXQ_t *mbox; 4854 int rc; 4855 4856 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4857 if (mbox) { 4858 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4859 mbox); 4860 mbox->vport = vport; 4861 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4862 mbox->context1 = NULL; 4863 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4864 if (rc != MBX_TIMEOUT) 4865 mempool_free(mbox, phba->mbox_mem_pool); 4866 4867 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4868 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4869 "1815 Could not issue " 4870 "unreg_did (default rpis) status %d\n", 4871 rc); 4872 } 4873 } 4874 4875 /* 4876 * Free resources associated with LPFC_NODELIST entry 4877 * so it can be freed. 4878 */ 4879 static int 4880 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4881 { 4882 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4883 struct lpfc_hba *phba = vport->phba; 4884 LPFC_MBOXQ_t *mb, *nextmb; 4885 struct lpfc_dmabuf *mp; 4886 4887 /* Cleanup node for NPort <nlp_DID> */ 4888 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4889 "0900 Cleanup node for NPort x%x " 4890 "Data: x%x x%x x%x\n", 4891 ndlp->nlp_DID, ndlp->nlp_flag, 4892 ndlp->nlp_state, ndlp->nlp_rpi); 4893 if (NLP_CHK_FREE_REQ(ndlp)) { 4894 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4895 "0280 lpfc_cleanup_node: ndlp:x%p " 4896 "usgmap:x%x refcnt:%d\n", 4897 (void *)ndlp, ndlp->nlp_usg_map, 4898 kref_read(&ndlp->kref)); 4899 lpfc_dequeue_node(vport, ndlp); 4900 } else { 4901 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4902 "0281 lpfc_cleanup_node: ndlp:x%p " 4903 "usgmap:x%x refcnt:%d\n", 4904 (void *)ndlp, ndlp->nlp_usg_map, 4905 kref_read(&ndlp->kref)); 4906 lpfc_disable_node(vport, ndlp); 4907 } 4908 4909 4910 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4911 4912 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4913 if ((mb = phba->sli.mbox_active)) { 4914 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4915 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4916 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4917 mb->context2 = NULL; 4918 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4919 } 4920 } 4921 4922 spin_lock_irq(&phba->hbalock); 4923 /* Cleanup REG_LOGIN completions which are not yet processed */ 4924 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4925 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4926 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4927 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4928 continue; 4929 4930 mb->context2 = NULL; 4931 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4932 } 4933 4934 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4935 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4936 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4937 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4938 mp = (struct lpfc_dmabuf *) (mb->context1); 4939 if (mp) { 4940 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4941 kfree(mp); 4942 } 4943 list_del(&mb->list); 4944 mempool_free(mb, phba->mbox_mem_pool); 4945 /* We shall not invoke the lpfc_nlp_put to decrement 4946 * the ndlp reference count as we are in the process 4947 * of lpfc_nlp_release. 4948 */ 4949 } 4950 } 4951 spin_unlock_irq(&phba->hbalock); 4952 4953 lpfc_els_abort(phba, ndlp); 4954 4955 spin_lock_irq(shost->host_lock); 4956 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4957 spin_unlock_irq(shost->host_lock); 4958 4959 ndlp->nlp_last_elscmd = 0; 4960 del_timer_sync(&ndlp->nlp_delayfunc); 4961 4962 list_del_init(&ndlp->els_retry_evt.evt_listp); 4963 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4964 lpfc_cleanup_vports_rrqs(vport, ndlp); 4965 lpfc_unreg_rpi(vport, ndlp); 4966 4967 return 0; 4968 } 4969 4970 /* 4971 * Check to see if we can free the nlp back to the freelist. 4972 * If we are in the middle of using the nlp in the discovery state 4973 * machine, defer the free till we reach the end of the state machine. 4974 */ 4975 static void 4976 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4977 { 4978 struct lpfc_hba *phba = vport->phba; 4979 struct lpfc_rport_data *rdata; 4980 struct fc_rport *rport; 4981 LPFC_MBOXQ_t *mbox; 4982 int rc; 4983 4984 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4985 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4986 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4987 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 4988 phba->sli_rev != LPFC_SLI_REV4) { 4989 /* For this case we need to cleanup the default rpi 4990 * allocated by the firmware. 4991 */ 4992 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4993 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4994 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4995 kref_read(&ndlp->kref), 4996 ndlp->nlp_usg_map, ndlp); 4997 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4998 != NULL) { 4999 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5000 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5001 if (rc) { 5002 mempool_free(mbox, phba->mbox_mem_pool); 5003 } 5004 else { 5005 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5006 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5007 mbox->vport = vport; 5008 mbox->context2 = ndlp; 5009 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5010 if (rc == MBX_NOT_FINISHED) { 5011 mempool_free(mbox, phba->mbox_mem_pool); 5012 } 5013 } 5014 } 5015 } 5016 lpfc_cleanup_node(vport, ndlp); 5017 5018 /* 5019 * ndlp->rport must be set to NULL before it reaches here 5020 * i.e. break rport/node link before doing lpfc_nlp_put for 5021 * registered rport and then drop the reference of rport. 5022 */ 5023 if (ndlp->rport) { 5024 /* 5025 * extra lpfc_nlp_put dropped the reference of ndlp 5026 * for registered rport so need to cleanup rport 5027 */ 5028 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5029 "0940 removed node x%p DID x%x " 5030 " rport not null %p\n", 5031 ndlp, ndlp->nlp_DID, ndlp->rport); 5032 rport = ndlp->rport; 5033 rdata = rport->dd_data; 5034 rdata->pnode = NULL; 5035 ndlp->rport = NULL; 5036 put_device(&rport->dev); 5037 } 5038 } 5039 5040 static int 5041 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5042 uint32_t did) 5043 { 5044 D_ID mydid, ndlpdid, matchdid; 5045 5046 if (did == Bcast_DID) 5047 return 0; 5048 5049 /* First check for Direct match */ 5050 if (ndlp->nlp_DID == did) 5051 return 1; 5052 5053 /* Next check for area/domain identically equals 0 match */ 5054 mydid.un.word = vport->fc_myDID; 5055 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5056 return 0; 5057 } 5058 5059 matchdid.un.word = did; 5060 ndlpdid.un.word = ndlp->nlp_DID; 5061 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5062 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5063 (mydid.un.b.area == matchdid.un.b.area)) { 5064 /* This code is supposed to match the ID 5065 * for a private loop device that is 5066 * connect to fl_port. But we need to 5067 * check that the port did not just go 5068 * from pt2pt to fabric or we could end 5069 * up matching ndlp->nlp_DID 000001 to 5070 * fabric DID 0x20101 5071 */ 5072 if ((ndlpdid.un.b.domain == 0) && 5073 (ndlpdid.un.b.area == 0)) { 5074 if (ndlpdid.un.b.id && 5075 vport->phba->fc_topology == 5076 LPFC_TOPOLOGY_LOOP) 5077 return 1; 5078 } 5079 return 0; 5080 } 5081 5082 matchdid.un.word = ndlp->nlp_DID; 5083 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5084 (mydid.un.b.area == ndlpdid.un.b.area)) { 5085 if ((matchdid.un.b.domain == 0) && 5086 (matchdid.un.b.area == 0)) { 5087 if (matchdid.un.b.id) 5088 return 1; 5089 } 5090 } 5091 } 5092 return 0; 5093 } 5094 5095 /* Search for a nodelist entry */ 5096 static struct lpfc_nodelist * 5097 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5098 { 5099 struct lpfc_nodelist *ndlp; 5100 uint32_t data1; 5101 5102 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5103 if (lpfc_matchdid(vport, ndlp, did)) { 5104 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5105 ((uint32_t) ndlp->nlp_xri << 16) | 5106 ((uint32_t) ndlp->nlp_type << 8) | 5107 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5108 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5109 "0929 FIND node DID " 5110 "Data: x%p x%x x%x x%x %p\n", 5111 ndlp, ndlp->nlp_DID, 5112 ndlp->nlp_flag, data1, 5113 ndlp->active_rrqs_xri_bitmap); 5114 return ndlp; 5115 } 5116 } 5117 5118 /* FIND node did <did> NOT FOUND */ 5119 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5120 "0932 FIND node did x%x NOT FOUND.\n", did); 5121 return NULL; 5122 } 5123 5124 struct lpfc_nodelist * 5125 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5126 { 5127 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5128 struct lpfc_nodelist *ndlp; 5129 unsigned long iflags; 5130 5131 spin_lock_irqsave(shost->host_lock, iflags); 5132 ndlp = __lpfc_findnode_did(vport, did); 5133 spin_unlock_irqrestore(shost->host_lock, iflags); 5134 return ndlp; 5135 } 5136 5137 struct lpfc_nodelist * 5138 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5139 { 5140 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5141 struct lpfc_nodelist *ndlp; 5142 5143 ndlp = lpfc_findnode_did(vport, did); 5144 if (!ndlp) { 5145 if (vport->phba->nvmet_support) 5146 return NULL; 5147 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5148 lpfc_rscn_payload_check(vport, did) == 0) 5149 return NULL; 5150 ndlp = lpfc_nlp_init(vport, did); 5151 if (!ndlp) 5152 return NULL; 5153 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5154 spin_lock_irq(shost->host_lock); 5155 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5156 spin_unlock_irq(shost->host_lock); 5157 return ndlp; 5158 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5159 if (vport->phba->nvmet_support) 5160 return NULL; 5161 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5162 if (!ndlp) 5163 return NULL; 5164 spin_lock_irq(shost->host_lock); 5165 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5166 spin_unlock_irq(shost->host_lock); 5167 return ndlp; 5168 } 5169 5170 /* The NVME Target does not want to actively manage an rport. 5171 * The goal is to allow the target to reset its state and clear 5172 * pending IO in preparation for the initiator to recover. 5173 */ 5174 if ((vport->fc_flag & FC_RSCN_MODE) && 5175 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5176 if (lpfc_rscn_payload_check(vport, did)) { 5177 5178 /* Since this node is marked for discovery, 5179 * delay timeout is not needed. 5180 */ 5181 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5182 5183 /* NVME Target mode waits until rport is known to be 5184 * impacted by the RSCN before it transitions. No 5185 * active management - just go to NPR provided the 5186 * node had a valid login. 5187 */ 5188 if (vport->phba->nvmet_support) 5189 return ndlp; 5190 5191 /* If we've already received a PLOGI from this NPort 5192 * we don't need to try to discover it again. 5193 */ 5194 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5195 return NULL; 5196 5197 spin_lock_irq(shost->host_lock); 5198 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5199 spin_unlock_irq(shost->host_lock); 5200 } else 5201 ndlp = NULL; 5202 } else { 5203 /* If the initiator received a PLOGI from this NPort or if the 5204 * initiator is already in the process of discovery on it, 5205 * there's no need to try to discover it again. 5206 */ 5207 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5208 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5209 (!vport->phba->nvmet_support && 5210 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5211 return NULL; 5212 5213 if (vport->phba->nvmet_support) 5214 return ndlp; 5215 5216 /* Moving to NPR state clears unsolicited flags and 5217 * allows for rediscovery 5218 */ 5219 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5220 5221 spin_lock_irq(shost->host_lock); 5222 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5223 spin_unlock_irq(shost->host_lock); 5224 } 5225 return ndlp; 5226 } 5227 5228 /* Build a list of nodes to discover based on the loopmap */ 5229 void 5230 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5231 { 5232 struct lpfc_hba *phba = vport->phba; 5233 int j; 5234 uint32_t alpa, index; 5235 5236 if (!lpfc_is_link_up(phba)) 5237 return; 5238 5239 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5240 return; 5241 5242 /* Check for loop map present or not */ 5243 if (phba->alpa_map[0]) { 5244 for (j = 1; j <= phba->alpa_map[0]; j++) { 5245 alpa = phba->alpa_map[j]; 5246 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5247 continue; 5248 lpfc_setup_disc_node(vport, alpa); 5249 } 5250 } else { 5251 /* No alpamap, so try all alpa's */ 5252 for (j = 0; j < FC_MAXLOOP; j++) { 5253 /* If cfg_scan_down is set, start from highest 5254 * ALPA (0xef) to lowest (0x1). 5255 */ 5256 if (vport->cfg_scan_down) 5257 index = j; 5258 else 5259 index = FC_MAXLOOP - j - 1; 5260 alpa = lpfcAlpaArray[index]; 5261 if ((vport->fc_myDID & 0xff) == alpa) 5262 continue; 5263 lpfc_setup_disc_node(vport, alpa); 5264 } 5265 } 5266 return; 5267 } 5268 5269 /* SLI3 only */ 5270 void 5271 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5272 { 5273 LPFC_MBOXQ_t *mbox; 5274 struct lpfc_sli *psli = &phba->sli; 5275 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5276 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5277 int rc; 5278 5279 /* 5280 * if it's not a physical port or if we already send 5281 * clear_la then don't send it. 5282 */ 5283 if ((phba->link_state >= LPFC_CLEAR_LA) || 5284 (vport->port_type != LPFC_PHYSICAL_PORT) || 5285 (phba->sli_rev == LPFC_SLI_REV4)) 5286 return; 5287 5288 /* Link up discovery */ 5289 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5290 phba->link_state = LPFC_CLEAR_LA; 5291 lpfc_clear_la(phba, mbox); 5292 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5293 mbox->vport = vport; 5294 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5295 if (rc == MBX_NOT_FINISHED) { 5296 mempool_free(mbox, phba->mbox_mem_pool); 5297 lpfc_disc_flush_list(vport); 5298 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5299 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5300 phba->link_state = LPFC_HBA_ERROR; 5301 } 5302 } 5303 } 5304 5305 /* Reg_vpi to tell firmware to resume normal operations */ 5306 void 5307 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5308 { 5309 LPFC_MBOXQ_t *regvpimbox; 5310 5311 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5312 if (regvpimbox) { 5313 lpfc_reg_vpi(vport, regvpimbox); 5314 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5315 regvpimbox->vport = vport; 5316 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5317 == MBX_NOT_FINISHED) { 5318 mempool_free(regvpimbox, phba->mbox_mem_pool); 5319 } 5320 } 5321 } 5322 5323 /* Start Link up / RSCN discovery on NPR nodes */ 5324 void 5325 lpfc_disc_start(struct lpfc_vport *vport) 5326 { 5327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5328 struct lpfc_hba *phba = vport->phba; 5329 uint32_t num_sent; 5330 uint32_t clear_la_pending; 5331 5332 if (!lpfc_is_link_up(phba)) { 5333 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5334 "3315 Link is not up %x\n", 5335 phba->link_state); 5336 return; 5337 } 5338 5339 if (phba->link_state == LPFC_CLEAR_LA) 5340 clear_la_pending = 1; 5341 else 5342 clear_la_pending = 0; 5343 5344 if (vport->port_state < LPFC_VPORT_READY) 5345 vport->port_state = LPFC_DISC_AUTH; 5346 5347 lpfc_set_disctmo(vport); 5348 5349 vport->fc_prevDID = vport->fc_myDID; 5350 vport->num_disc_nodes = 0; 5351 5352 /* Start Discovery state <hba_state> */ 5353 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5354 "0202 Start Discovery hba state x%x " 5355 "Data: x%x x%x x%x\n", 5356 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5357 vport->fc_adisc_cnt); 5358 5359 /* First do ADISCs - if any */ 5360 num_sent = lpfc_els_disc_adisc(vport); 5361 5362 if (num_sent) 5363 return; 5364 5365 /* Register the VPI for SLI3, NPIV only. */ 5366 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5367 !(vport->fc_flag & FC_PT2PT) && 5368 !(vport->fc_flag & FC_RSCN_MODE) && 5369 (phba->sli_rev < LPFC_SLI_REV4)) { 5370 lpfc_issue_clear_la(phba, vport); 5371 lpfc_issue_reg_vpi(phba, vport); 5372 return; 5373 } 5374 5375 /* 5376 * For SLI2, we need to set port_state to READY and continue 5377 * discovery. 5378 */ 5379 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5380 /* If we get here, there is nothing to ADISC */ 5381 lpfc_issue_clear_la(phba, vport); 5382 5383 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5384 vport->num_disc_nodes = 0; 5385 /* go thru NPR nodes and issue ELS PLOGIs */ 5386 if (vport->fc_npr_cnt) 5387 lpfc_els_disc_plogi(vport); 5388 5389 if (!vport->num_disc_nodes) { 5390 spin_lock_irq(shost->host_lock); 5391 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5392 spin_unlock_irq(shost->host_lock); 5393 lpfc_can_disctmo(vport); 5394 } 5395 } 5396 vport->port_state = LPFC_VPORT_READY; 5397 } else { 5398 /* Next do PLOGIs - if any */ 5399 num_sent = lpfc_els_disc_plogi(vport); 5400 5401 if (num_sent) 5402 return; 5403 5404 if (vport->fc_flag & FC_RSCN_MODE) { 5405 /* Check to see if more RSCNs came in while we 5406 * were processing this one. 5407 */ 5408 if ((vport->fc_rscn_id_cnt == 0) && 5409 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5410 spin_lock_irq(shost->host_lock); 5411 vport->fc_flag &= ~FC_RSCN_MODE; 5412 spin_unlock_irq(shost->host_lock); 5413 lpfc_can_disctmo(vport); 5414 } else 5415 lpfc_els_handle_rscn(vport); 5416 } 5417 } 5418 return; 5419 } 5420 5421 /* 5422 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5423 * ring the match the sppecified nodelist. 5424 */ 5425 static void 5426 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5427 { 5428 LIST_HEAD(completions); 5429 struct lpfc_sli *psli; 5430 IOCB_t *icmd; 5431 struct lpfc_iocbq *iocb, *next_iocb; 5432 struct lpfc_sli_ring *pring; 5433 5434 psli = &phba->sli; 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->hbalock, flags); 5940 list_for_each_entry(vport, &phba->port_list, listentry) { 5941 if (vport->vpi == i) { 5942 spin_unlock_irqrestore(&phba->hbalock, flags); 5943 return vport; 5944 } 5945 } 5946 spin_unlock_irqrestore(&phba->hbalock, 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