1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 #include <scsi/fc/fc_fs.h> 37 38 #include <linux/nvme-fc-driver.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_crtn.h" 51 #include "lpfc_vport.h" 52 #include "lpfc_debugfs.h" 53 54 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 55 static uint8_t lpfcAlpaArray[] = { 56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 69 }; 70 71 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 72 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 74 static int lpfc_fcf_inuse(struct lpfc_hba *); 75 76 void 77 lpfc_terminate_rport_io(struct fc_rport *rport) 78 { 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105 } 106 107 /* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110 void 111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112 { 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 122 rdata = rport->dd_data; 123 ndlp = rdata->pnode; 124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 125 return; 126 127 vport = ndlp->vport; 128 phba = vport->phba; 129 130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 131 "rport devlosscb: sid:x%x did:x%x flg:x%x", 132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 133 134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 137 138 /* Don't defer this if we are in the process of deleting the vport 139 * or unloading the driver. The unload will cleanup the node 140 * appropriately we just need to cleanup the ndlp rport info here. 141 */ 142 if (vport->load_flag & FC_UNLOADING) { 143 put_node = rdata->pnode != NULL; 144 put_rport = ndlp->rport != NULL; 145 rdata->pnode = NULL; 146 ndlp->rport = NULL; 147 if (put_node) 148 lpfc_nlp_put(ndlp); 149 if (put_rport) 150 put_device(&rport->dev); 151 return; 152 } 153 154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 155 return; 156 157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 159 "6789 rport name %llx != node port name %llx", 160 rport->port_name, 161 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 162 163 evtp = &ndlp->dev_loss_evt; 164 165 if (!list_empty(&evtp->evt_listp)) { 166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 167 "6790 rport name %llx dev_loss_evt pending", 168 rport->port_name); 169 return; 170 } 171 172 shost = lpfc_shost_from_vport(vport); 173 spin_lock_irq(shost->host_lock); 174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 175 spin_unlock_irq(shost->host_lock); 176 177 /* We need to hold the node by incrementing the reference 178 * count until this queued work is done 179 */ 180 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 181 182 spin_lock_irq(&phba->hbalock); 183 if (evtp->evt_arg1) { 184 evtp->evt = LPFC_EVT_DEV_LOSS; 185 list_add_tail(&evtp->evt_listp, &phba->work_list); 186 lpfc_worker_wake_up(phba); 187 } 188 spin_unlock_irq(&phba->hbalock); 189 190 return; 191 } 192 193 /** 194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 195 * @ndlp: Pointer to remote node object. 196 * 197 * This function is called from the worker thread when devloss timeout timer 198 * expires. For SLI4 host, this routine shall return 1 when at lease one 199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 200 * routine shall return 0 when there is no remote node is still in use of FCF 201 * when devloss timeout happened to this @ndlp. 202 **/ 203 static int 204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 205 { 206 struct lpfc_rport_data *rdata; 207 struct fc_rport *rport; 208 struct lpfc_vport *vport; 209 struct lpfc_hba *phba; 210 struct Scsi_Host *shost; 211 uint8_t *name; 212 int put_node; 213 int warn_on = 0; 214 int fcf_inuse = 0; 215 216 rport = ndlp->rport; 217 vport = ndlp->vport; 218 shost = lpfc_shost_from_vport(vport); 219 220 spin_lock_irq(shost->host_lock); 221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 222 spin_unlock_irq(shost->host_lock); 223 224 if (!rport) 225 return fcf_inuse; 226 227 name = (uint8_t *) &ndlp->nlp_portname; 228 phba = vport->phba; 229 230 if (phba->sli_rev == LPFC_SLI_REV4) 231 fcf_inuse = lpfc_fcf_inuse(phba); 232 233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 234 "rport devlosstmo:did:x%x type:x%x id:x%x", 235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 236 237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 240 241 /* 242 * lpfc_nlp_remove if reached with dangling rport drops the 243 * reference. To make sure that does not happen clear rport 244 * pointer in ndlp before lpfc_nlp_put. 245 */ 246 rdata = rport->dd_data; 247 248 /* Don't defer this if we are in the process of deleting the vport 249 * or unloading the driver. The unload will cleanup the node 250 * appropriately we just need to cleanup the ndlp rport info here. 251 */ 252 if (vport->load_flag & FC_UNLOADING) { 253 if (ndlp->nlp_sid != NLP_NO_SID) { 254 /* flush the target */ 255 lpfc_sli_abort_iocb(vport, 256 &phba->sli.sli3_ring[LPFC_FCP_RING], 257 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 258 } 259 put_node = rdata->pnode != NULL; 260 rdata->pnode = NULL; 261 ndlp->rport = NULL; 262 if (put_node) 263 lpfc_nlp_put(ndlp); 264 put_device(&rport->dev); 265 266 return fcf_inuse; 267 } 268 269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 271 "0284 Devloss timeout Ignored on " 272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 273 "NPort x%x\n", 274 *name, *(name+1), *(name+2), *(name+3), 275 *(name+4), *(name+5), *(name+6), *(name+7), 276 ndlp->nlp_DID); 277 return fcf_inuse; 278 } 279 280 put_node = rdata->pnode != NULL; 281 rdata->pnode = NULL; 282 ndlp->rport = NULL; 283 if (put_node) 284 lpfc_nlp_put(ndlp); 285 put_device(&rport->dev); 286 287 if (ndlp->nlp_type & NLP_FABRIC) 288 return fcf_inuse; 289 290 if (ndlp->nlp_sid != NLP_NO_SID) { 291 warn_on = 1; 292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 293 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 294 } 295 296 if (warn_on) { 297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 298 "0203 Devloss timeout on " 299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 300 "NPort x%06x Data: x%x x%x x%x\n", 301 *name, *(name+1), *(name+2), *(name+3), 302 *(name+4), *(name+5), *(name+6), *(name+7), 303 ndlp->nlp_DID, ndlp->nlp_flag, 304 ndlp->nlp_state, ndlp->nlp_rpi); 305 } else { 306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 307 "0204 Devloss timeout on " 308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 309 "NPort x%06x Data: x%x x%x x%x\n", 310 *name, *(name+1), *(name+2), *(name+3), 311 *(name+4), *(name+5), *(name+6), *(name+7), 312 ndlp->nlp_DID, ndlp->nlp_flag, 313 ndlp->nlp_state, ndlp->nlp_rpi); 314 } 315 316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 322 323 return fcf_inuse; 324 } 325 326 /** 327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 328 * @phba: Pointer to hba context object. 329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 330 * @nlp_did: remote node identifer with devloss timeout. 331 * 332 * This function is called from the worker thread after invoking devloss 333 * timeout handler and releasing the reference count for the ndlp with 334 * which the devloss timeout was handled for SLI4 host. For the devloss 335 * timeout of the last remote node which had been in use of FCF, when this 336 * routine is invoked, it shall be guaranteed that none of the remote are 337 * in-use of FCF. When devloss timeout to the last remote using the FCF, 338 * if the FIP engine is neither in FCF table scan process nor roundrobin 339 * failover process, the in-use FCF shall be unregistered. If the FIP 340 * engine is in FCF discovery process, the devloss timeout state shall 341 * be set for either the FCF table scan process or roundrobin failover 342 * process to unregister the in-use FCF. 343 **/ 344 static void 345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 346 uint32_t nlp_did) 347 { 348 /* If devloss timeout happened to a remote node when FCF had no 349 * longer been in-use, do nothing. 350 */ 351 if (!fcf_inuse) 352 return; 353 354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 355 spin_lock_irq(&phba->hbalock); 356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 357 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 358 spin_unlock_irq(&phba->hbalock); 359 return; 360 } 361 phba->hba_flag |= HBA_DEVLOSS_TMO; 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2847 Last remote node (x%x) using " 364 "FCF devloss tmo\n", nlp_did); 365 } 366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 367 spin_unlock_irq(&phba->hbalock); 368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 369 "2868 Devloss tmo to FCF rediscovery " 370 "in progress\n"); 371 return; 372 } 373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 374 spin_unlock_irq(&phba->hbalock); 375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 376 "2869 Devloss tmo to idle FIP engine, " 377 "unreg in-use FCF and rescan.\n"); 378 /* Unregister in-use FCF and rescan */ 379 lpfc_unregister_fcf_rescan(phba); 380 return; 381 } 382 spin_unlock_irq(&phba->hbalock); 383 if (phba->hba_flag & FCF_TS_INPROG) 384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 385 "2870 FCF table scan in progress\n"); 386 if (phba->hba_flag & FCF_RR_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2871 FLOGI roundrobin FCF failover " 389 "in progress\n"); 390 } 391 lpfc_unregister_unused_fcf(phba); 392 } 393 394 /** 395 * lpfc_alloc_fast_evt - Allocates data structure for posting event 396 * @phba: Pointer to hba context object. 397 * 398 * This function is called from the functions which need to post 399 * events from interrupt context. This function allocates data 400 * structure required for posting event. It also keeps track of 401 * number of events pending and prevent event storm when there are 402 * too many events. 403 **/ 404 struct lpfc_fast_path_event * 405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 406 struct lpfc_fast_path_event *ret; 407 408 /* If there are lot of fast event do not exhaust memory due to this */ 409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 410 return NULL; 411 412 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 413 GFP_ATOMIC); 414 if (ret) { 415 atomic_inc(&phba->fast_event_count); 416 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 418 } 419 return ret; 420 } 421 422 /** 423 * lpfc_free_fast_evt - Frees event data structure 424 * @phba: Pointer to hba context object. 425 * @evt: Event object which need to be freed. 426 * 427 * This function frees the data structure required for posting 428 * events. 429 **/ 430 void 431 lpfc_free_fast_evt(struct lpfc_hba *phba, 432 struct lpfc_fast_path_event *evt) { 433 434 atomic_dec(&phba->fast_event_count); 435 kfree(evt); 436 } 437 438 /** 439 * lpfc_send_fastpath_evt - Posts events generated from fast path 440 * @phba: Pointer to hba context object. 441 * @evtp: Event data structure. 442 * 443 * This function is called from worker thread, when the interrupt 444 * context need to post an event. This function posts the event 445 * to fc transport netlink interface. 446 **/ 447 static void 448 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 449 struct lpfc_work_evt *evtp) 450 { 451 unsigned long evt_category, evt_sub_category; 452 struct lpfc_fast_path_event *fast_evt_data; 453 char *evt_data; 454 uint32_t evt_data_size; 455 struct Scsi_Host *shost; 456 457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 458 work_evt); 459 460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 461 evt_sub_category = (unsigned long) fast_evt_data->un. 462 fabric_evt.subcategory; 463 shost = lpfc_shost_from_vport(fast_evt_data->vport); 464 if (evt_category == FC_REG_FABRIC_EVENT) { 465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 466 evt_data = (char *) &fast_evt_data->un.read_check_error; 467 evt_data_size = sizeof(fast_evt_data->un. 468 read_check_error); 469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 471 evt_data = (char *) &fast_evt_data->un.fabric_evt; 472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 473 } else { 474 lpfc_free_fast_evt(phba, fast_evt_data); 475 return; 476 } 477 } else if (evt_category == FC_REG_SCSI_EVENT) { 478 switch (evt_sub_category) { 479 case LPFC_EVENT_QFULL: 480 case LPFC_EVENT_DEVBSY: 481 evt_data = (char *) &fast_evt_data->un.scsi_evt; 482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 483 break; 484 case LPFC_EVENT_CHECK_COND: 485 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 check_cond_evt); 488 break; 489 case LPFC_EVENT_VARQUEDEPTH: 490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 491 evt_data_size = sizeof(fast_evt_data->un. 492 queue_depth_evt); 493 break; 494 default: 495 lpfc_free_fast_evt(phba, fast_evt_data); 496 return; 497 } 498 } else { 499 lpfc_free_fast_evt(phba, fast_evt_data); 500 return; 501 } 502 503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 504 fc_host_post_vendor_event(shost, 505 fc_get_event_number(), 506 evt_data_size, 507 evt_data, 508 LPFC_NL_VENDOR_ID); 509 510 lpfc_free_fast_evt(phba, fast_evt_data); 511 return; 512 } 513 514 static void 515 lpfc_work_list_done(struct lpfc_hba *phba) 516 { 517 struct lpfc_work_evt *evtp = NULL; 518 struct lpfc_nodelist *ndlp; 519 int free_evt; 520 int fcf_inuse; 521 uint32_t nlp_did; 522 523 spin_lock_irq(&phba->hbalock); 524 while (!list_empty(&phba->work_list)) { 525 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 526 evt_listp); 527 spin_unlock_irq(&phba->hbalock); 528 free_evt = 1; 529 switch (evtp->evt) { 530 case LPFC_EVT_ELS_RETRY: 531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 532 lpfc_els_retry_delay_handler(ndlp); 533 free_evt = 0; /* evt is part of ndlp */ 534 /* decrement the node reference count held 535 * for this queued work 536 */ 537 lpfc_nlp_put(ndlp); 538 break; 539 case LPFC_EVT_DEV_LOSS: 540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 542 free_evt = 0; 543 /* decrement the node reference count held for 544 * this queued work 545 */ 546 nlp_did = ndlp->nlp_DID; 547 lpfc_nlp_put(ndlp); 548 if (phba->sli_rev == LPFC_SLI_REV4) 549 lpfc_sli4_post_dev_loss_tmo_handler(phba, 550 fcf_inuse, 551 nlp_did); 552 break; 553 case LPFC_EVT_ONLINE: 554 if (phba->link_state < LPFC_LINK_DOWN) 555 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 556 else 557 *(int *) (evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE_PREP: 561 if (phba->link_state >= LPFC_LINK_DOWN) 562 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 563 *(int *)(evtp->evt_arg1) = 0; 564 complete((struct completion *)(evtp->evt_arg2)); 565 break; 566 case LPFC_EVT_OFFLINE: 567 lpfc_offline(phba); 568 lpfc_sli_brdrestart(phba); 569 *(int *)(evtp->evt_arg1) = 570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 571 lpfc_unblock_mgmt_io(phba); 572 complete((struct completion *)(evtp->evt_arg2)); 573 break; 574 case LPFC_EVT_WARM_START: 575 lpfc_offline(phba); 576 lpfc_reset_barrier(phba); 577 lpfc_sli_brdreset(phba); 578 lpfc_hba_down_post(phba); 579 *(int *)(evtp->evt_arg1) = 580 lpfc_sli_brdready(phba, HS_MBRDY); 581 lpfc_unblock_mgmt_io(phba); 582 complete((struct completion *)(evtp->evt_arg2)); 583 break; 584 case LPFC_EVT_KILL: 585 lpfc_offline(phba); 586 *(int *)(evtp->evt_arg1) 587 = (phba->pport->stopped) 588 ? 0 : lpfc_sli_brdkill(phba); 589 lpfc_unblock_mgmt_io(phba); 590 complete((struct completion *)(evtp->evt_arg2)); 591 break; 592 case LPFC_EVT_FASTPATH_MGMT_EVT: 593 lpfc_send_fastpath_evt(phba, evtp); 594 free_evt = 0; 595 break; 596 case LPFC_EVT_RESET_HBA: 597 if (!(phba->pport->load_flag & FC_UNLOADING)) 598 lpfc_reset_hba(phba); 599 break; 600 } 601 if (free_evt) 602 kfree(evtp); 603 spin_lock_irq(&phba->hbalock); 604 } 605 spin_unlock_irq(&phba->hbalock); 606 607 } 608 609 static void 610 lpfc_work_done(struct lpfc_hba *phba) 611 { 612 struct lpfc_sli_ring *pring; 613 uint32_t ha_copy, status, control, work_port_events; 614 struct lpfc_vport **vports; 615 struct lpfc_vport *vport; 616 int i; 617 618 spin_lock_irq(&phba->hbalock); 619 ha_copy = phba->work_ha; 620 phba->work_ha = 0; 621 spin_unlock_irq(&phba->hbalock); 622 623 /* First, try to post the next mailbox command to SLI4 device */ 624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 625 lpfc_sli4_post_async_mbox(phba); 626 627 if (ha_copy & HA_ERATT) 628 /* Handle the error attention event */ 629 lpfc_handle_eratt(phba); 630 631 if (ha_copy & HA_MBATT) 632 lpfc_sli_handle_mb_event(phba); 633 634 if (ha_copy & HA_LATT) 635 lpfc_handle_latt(phba); 636 637 /* Process SLI4 events */ 638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 639 if (phba->hba_flag & HBA_RRQ_ACTIVE) 640 lpfc_handle_rrq_active(phba); 641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 642 lpfc_sli4_fcp_xri_abort_event_proc(phba); 643 if (phba->hba_flag & NVME_XRI_ABORT_EVENT) 644 lpfc_sli4_nvme_xri_abort_event_proc(phba); 645 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 646 lpfc_sli4_els_xri_abort_event_proc(phba); 647 if (phba->hba_flag & ASYNC_EVENT) 648 lpfc_sli4_async_event_proc(phba); 649 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 650 spin_lock_irq(&phba->hbalock); 651 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 652 spin_unlock_irq(&phba->hbalock); 653 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 654 } 655 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 656 lpfc_sli4_fcf_redisc_event_proc(phba); 657 } 658 659 vports = lpfc_create_vport_work_array(phba); 660 if (vports != NULL) 661 for (i = 0; i <= phba->max_vports; i++) { 662 /* 663 * We could have no vports in array if unloading, so if 664 * this happens then just use the pport 665 */ 666 if (vports[i] == NULL && i == 0) 667 vport = phba->pport; 668 else 669 vport = vports[i]; 670 if (vport == NULL) 671 break; 672 spin_lock_irq(&vport->work_port_lock); 673 work_port_events = vport->work_port_events; 674 vport->work_port_events &= ~work_port_events; 675 spin_unlock_irq(&vport->work_port_lock); 676 if (work_port_events & WORKER_DISC_TMO) 677 lpfc_disc_timeout_handler(vport); 678 if (work_port_events & WORKER_ELS_TMO) 679 lpfc_els_timeout_handler(vport); 680 if (work_port_events & WORKER_HB_TMO) 681 lpfc_hb_timeout_handler(phba); 682 if (work_port_events & WORKER_MBOX_TMO) 683 lpfc_mbox_timeout_handler(phba); 684 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 685 lpfc_unblock_fabric_iocbs(phba); 686 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 687 lpfc_ramp_down_queue_handler(phba); 688 if (work_port_events & WORKER_DELAYED_DISC_TMO) 689 lpfc_delayed_disc_timeout_handler(vport); 690 } 691 lpfc_destroy_vport_work_array(phba, vports); 692 693 pring = lpfc_phba_elsring(phba); 694 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 695 status >>= (4*LPFC_ELS_RING); 696 if (pring && (status & HA_RXMASK || 697 pring->flag & LPFC_DEFERRED_RING_EVENT || 698 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 699 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 700 pring->flag |= LPFC_DEFERRED_RING_EVENT; 701 /* Set the lpfc data pending flag */ 702 set_bit(LPFC_DATA_READY, &phba->data_flags); 703 } else { 704 if (phba->link_state >= LPFC_LINK_UP || 705 phba->link_flag & LS_MDS_LOOPBACK) { 706 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 707 lpfc_sli_handle_slow_ring_event(phba, pring, 708 (status & 709 HA_RXMASK)); 710 } 711 } 712 if ((phba->sli_rev == LPFC_SLI_REV4) && 713 (!list_empty(&pring->txq))) 714 lpfc_drain_txq(phba); 715 /* 716 * Turn on Ring interrupts 717 */ 718 if (phba->sli_rev <= LPFC_SLI_REV3) { 719 spin_lock_irq(&phba->hbalock); 720 control = readl(phba->HCregaddr); 721 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 722 lpfc_debugfs_slow_ring_trc(phba, 723 "WRK Enable ring: cntl:x%x hacopy:x%x", 724 control, ha_copy, 0); 725 726 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 727 writel(control, phba->HCregaddr); 728 readl(phba->HCregaddr); /* flush */ 729 } else { 730 lpfc_debugfs_slow_ring_trc(phba, 731 "WRK Ring ok: cntl:x%x hacopy:x%x", 732 control, ha_copy, 0); 733 } 734 spin_unlock_irq(&phba->hbalock); 735 } 736 } 737 lpfc_work_list_done(phba); 738 } 739 740 int 741 lpfc_do_work(void *p) 742 { 743 struct lpfc_hba *phba = p; 744 int rc; 745 746 set_user_nice(current, MIN_NICE); 747 current->flags |= PF_NOFREEZE; 748 phba->data_flags = 0; 749 750 while (!kthread_should_stop()) { 751 /* wait and check worker queue activities */ 752 rc = wait_event_interruptible(phba->work_waitq, 753 (test_and_clear_bit(LPFC_DATA_READY, 754 &phba->data_flags) 755 || kthread_should_stop())); 756 /* Signal wakeup shall terminate the worker thread */ 757 if (rc) { 758 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 759 "0433 Wakeup on signal: rc=x%x\n", rc); 760 break; 761 } 762 763 /* Attend pending lpfc data processing */ 764 lpfc_work_done(phba); 765 } 766 phba->worker_thread = NULL; 767 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 768 "0432 Worker thread stopped.\n"); 769 return 0; 770 } 771 772 /* 773 * This is only called to handle FC worker events. Since this a rare 774 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 775 * embedding it in the IOCB. 776 */ 777 int 778 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 779 uint32_t evt) 780 { 781 struct lpfc_work_evt *evtp; 782 unsigned long flags; 783 784 /* 785 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 786 * be queued to worker thread for processing 787 */ 788 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 789 if (!evtp) 790 return 0; 791 792 evtp->evt_arg1 = arg1; 793 evtp->evt_arg2 = arg2; 794 evtp->evt = evt; 795 796 spin_lock_irqsave(&phba->hbalock, flags); 797 list_add_tail(&evtp->evt_listp, &phba->work_list); 798 spin_unlock_irqrestore(&phba->hbalock, flags); 799 800 lpfc_worker_wake_up(phba); 801 802 return 1; 803 } 804 805 void 806 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 807 { 808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 809 struct lpfc_hba *phba = vport->phba; 810 struct lpfc_nodelist *ndlp, *next_ndlp; 811 812 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 813 if (!NLP_CHK_NODE_ACT(ndlp)) 814 continue; 815 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 816 continue; 817 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 818 ((vport->port_type == LPFC_NPIV_PORT) && 819 (ndlp->nlp_DID == NameServer_DID))) 820 lpfc_unreg_rpi(vport, ndlp); 821 822 /* Leave Fabric nodes alone on link down */ 823 if ((phba->sli_rev < LPFC_SLI_REV4) && 824 (!remove && ndlp->nlp_type & NLP_FABRIC)) 825 continue; 826 lpfc_disc_state_machine(vport, ndlp, NULL, 827 remove 828 ? NLP_EVT_DEVICE_RM 829 : NLP_EVT_DEVICE_RECOVERY); 830 } 831 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 832 if (phba->sli_rev == LPFC_SLI_REV4) 833 lpfc_sli4_unreg_all_rpis(vport); 834 lpfc_mbx_unreg_vpi(vport); 835 spin_lock_irq(shost->host_lock); 836 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 837 spin_unlock_irq(shost->host_lock); 838 } 839 } 840 841 void 842 lpfc_port_link_failure(struct lpfc_vport *vport) 843 { 844 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 845 846 /* Cleanup any outstanding received buffers */ 847 lpfc_cleanup_rcv_buffers(vport); 848 849 /* Cleanup any outstanding RSCN activity */ 850 lpfc_els_flush_rscn(vport); 851 852 /* Cleanup any outstanding ELS commands */ 853 lpfc_els_flush_cmd(vport); 854 855 lpfc_cleanup_rpis(vport, 0); 856 857 /* Turn off discovery timer if its running */ 858 lpfc_can_disctmo(vport); 859 } 860 861 void 862 lpfc_linkdown_port(struct lpfc_vport *vport) 863 { 864 struct lpfc_hba *phba = vport->phba; 865 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 866 867 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 868 fc_host_post_event(shost, fc_get_event_number(), 869 FCH_EVT_LINKDOWN, 0); 870 871 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 872 "Link Down: state:x%x rtry:x%x flg:x%x", 873 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 874 875 lpfc_port_link_failure(vport); 876 877 /* Stop delayed Nport discovery */ 878 spin_lock_irq(shost->host_lock); 879 vport->fc_flag &= ~FC_DISC_DELAYED; 880 spin_unlock_irq(shost->host_lock); 881 del_timer_sync(&vport->delayed_disc_tmo); 882 } 883 884 int 885 lpfc_linkdown(struct lpfc_hba *phba) 886 { 887 struct lpfc_vport *vport = phba->pport; 888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 889 struct lpfc_vport **vports; 890 LPFC_MBOXQ_t *mb; 891 int i; 892 893 if (phba->link_state == LPFC_LINK_DOWN) 894 return 0; 895 896 /* Block all SCSI stack I/Os */ 897 lpfc_scsi_dev_block(phba); 898 899 spin_lock_irq(&phba->hbalock); 900 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 901 spin_unlock_irq(&phba->hbalock); 902 if (phba->link_state > LPFC_LINK_DOWN) { 903 phba->link_state = LPFC_LINK_DOWN; 904 spin_lock_irq(shost->host_lock); 905 phba->pport->fc_flag &= ~FC_LBIT; 906 spin_unlock_irq(shost->host_lock); 907 } 908 vports = lpfc_create_vport_work_array(phba); 909 if (vports != NULL) { 910 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 911 /* Issue a LINK DOWN event to all nodes */ 912 lpfc_linkdown_port(vports[i]); 913 914 vports[i]->fc_myDID = 0; 915 916 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 917 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 918 if (phba->nvmet_support) 919 lpfc_nvmet_update_targetport(phba); 920 else 921 lpfc_nvme_update_localport(vports[i]); 922 } 923 } 924 } 925 lpfc_destroy_vport_work_array(phba, vports); 926 /* Clean up any firmware default rpi's */ 927 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 928 if (mb) { 929 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 930 mb->vport = vport; 931 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 932 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 933 == MBX_NOT_FINISHED) { 934 mempool_free(mb, phba->mbox_mem_pool); 935 } 936 } 937 938 /* Setup myDID for link up if we are in pt2pt mode */ 939 if (phba->pport->fc_flag & FC_PT2PT) { 940 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 941 if (mb) { 942 lpfc_config_link(phba, mb); 943 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 944 mb->vport = vport; 945 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 946 == MBX_NOT_FINISHED) { 947 mempool_free(mb, phba->mbox_mem_pool); 948 } 949 } 950 spin_lock_irq(shost->host_lock); 951 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 952 spin_unlock_irq(shost->host_lock); 953 } 954 return 0; 955 } 956 957 static void 958 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 959 { 960 struct lpfc_nodelist *ndlp; 961 962 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 963 if (!NLP_CHK_NODE_ACT(ndlp)) 964 continue; 965 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 966 continue; 967 if (ndlp->nlp_type & NLP_FABRIC) { 968 /* On Linkup its safe to clean up the ndlp 969 * from Fabric connections. 970 */ 971 if (ndlp->nlp_DID != Fabric_DID) 972 lpfc_unreg_rpi(vport, ndlp); 973 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 974 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 975 /* Fail outstanding IO now since device is 976 * marked for PLOGI. 977 */ 978 lpfc_unreg_rpi(vport, ndlp); 979 } 980 } 981 } 982 983 static void 984 lpfc_linkup_port(struct lpfc_vport *vport) 985 { 986 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 987 struct lpfc_hba *phba = vport->phba; 988 989 if ((vport->load_flag & FC_UNLOADING) != 0) 990 return; 991 992 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 993 "Link Up: top:x%x speed:x%x flg:x%x", 994 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 995 996 /* If NPIV is not enabled, only bring the physical port up */ 997 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 998 (vport != phba->pport)) 999 return; 1000 1001 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1002 fc_host_post_event(shost, fc_get_event_number(), 1003 FCH_EVT_LINKUP, 0); 1004 1005 spin_lock_irq(shost->host_lock); 1006 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1007 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1008 vport->fc_flag |= FC_NDISC_ACTIVE; 1009 vport->fc_ns_retry = 0; 1010 spin_unlock_irq(shost->host_lock); 1011 1012 if (vport->fc_flag & FC_LBIT) 1013 lpfc_linkup_cleanup_nodes(vport); 1014 1015 } 1016 1017 static int 1018 lpfc_linkup(struct lpfc_hba *phba) 1019 { 1020 struct lpfc_vport **vports; 1021 int i; 1022 1023 phba->link_state = LPFC_LINK_UP; 1024 1025 /* Unblock fabric iocbs if they are blocked */ 1026 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1027 del_timer_sync(&phba->fabric_block_timer); 1028 1029 vports = lpfc_create_vport_work_array(phba); 1030 if (vports != NULL) 1031 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1032 lpfc_linkup_port(vports[i]); 1033 lpfc_destroy_vport_work_array(phba, vports); 1034 1035 return 0; 1036 } 1037 1038 /* 1039 * This routine handles processing a CLEAR_LA mailbox 1040 * command upon completion. It is setup in the LPFC_MBOXQ 1041 * as the completion routine when the command is 1042 * handed off to the SLI layer. SLI3 only. 1043 */ 1044 static void 1045 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1046 { 1047 struct lpfc_vport *vport = pmb->vport; 1048 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1049 struct lpfc_sli *psli = &phba->sli; 1050 MAILBOX_t *mb = &pmb->u.mb; 1051 uint32_t control; 1052 1053 /* Since we don't do discovery right now, turn these off here */ 1054 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1055 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1056 1057 /* Check for error */ 1058 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1059 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1060 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1061 "0320 CLEAR_LA mbxStatus error x%x hba " 1062 "state x%x\n", 1063 mb->mbxStatus, vport->port_state); 1064 phba->link_state = LPFC_HBA_ERROR; 1065 goto out; 1066 } 1067 1068 if (vport->port_type == LPFC_PHYSICAL_PORT) 1069 phba->link_state = LPFC_HBA_READY; 1070 1071 spin_lock_irq(&phba->hbalock); 1072 psli->sli_flag |= LPFC_PROCESS_LA; 1073 control = readl(phba->HCregaddr); 1074 control |= HC_LAINT_ENA; 1075 writel(control, phba->HCregaddr); 1076 readl(phba->HCregaddr); /* flush */ 1077 spin_unlock_irq(&phba->hbalock); 1078 mempool_free(pmb, phba->mbox_mem_pool); 1079 return; 1080 1081 out: 1082 /* Device Discovery completes */ 1083 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1084 "0225 Device Discovery completes\n"); 1085 mempool_free(pmb, phba->mbox_mem_pool); 1086 1087 spin_lock_irq(shost->host_lock); 1088 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1089 spin_unlock_irq(shost->host_lock); 1090 1091 lpfc_can_disctmo(vport); 1092 1093 /* turn on Link Attention interrupts */ 1094 1095 spin_lock_irq(&phba->hbalock); 1096 psli->sli_flag |= LPFC_PROCESS_LA; 1097 control = readl(phba->HCregaddr); 1098 control |= HC_LAINT_ENA; 1099 writel(control, phba->HCregaddr); 1100 readl(phba->HCregaddr); /* flush */ 1101 spin_unlock_irq(&phba->hbalock); 1102 1103 return; 1104 } 1105 1106 1107 void 1108 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1109 { 1110 struct lpfc_vport *vport = pmb->vport; 1111 uint8_t bbscn = 0; 1112 1113 if (pmb->u.mb.mbxStatus) 1114 goto out; 1115 1116 mempool_free(pmb, phba->mbox_mem_pool); 1117 1118 /* don't perform discovery for SLI4 loopback diagnostic test */ 1119 if ((phba->sli_rev == LPFC_SLI_REV4) && 1120 !(phba->hba_flag & HBA_FCOE_MODE) && 1121 (phba->link_flag & LS_LOOPBACK_MODE)) 1122 return; 1123 1124 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1125 vport->fc_flag & FC_PUBLIC_LOOP && 1126 !(vport->fc_flag & FC_LBIT)) { 1127 /* Need to wait for FAN - use discovery timer 1128 * for timeout. port_state is identically 1129 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1130 */ 1131 lpfc_set_disctmo(vport); 1132 return; 1133 } 1134 1135 /* Start discovery by sending a FLOGI. port_state is identically 1136 * LPFC_FLOGI while waiting for FLOGI cmpl 1137 */ 1138 if (vport->port_state != LPFC_FLOGI) { 1139 if (phba->bbcredit_support && phba->cfg_enable_bbcr) { 1140 bbscn = bf_get(lpfc_bbscn_def, 1141 &phba->sli4_hba.bbscn_params); 1142 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 1143 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); 1144 } 1145 lpfc_initial_flogi(vport); 1146 } else if (vport->fc_flag & FC_PT2PT) { 1147 lpfc_disc_start(vport); 1148 } 1149 return; 1150 1151 out: 1152 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1153 "0306 CONFIG_LINK mbxStatus error x%x " 1154 "HBA state x%x\n", 1155 pmb->u.mb.mbxStatus, vport->port_state); 1156 mempool_free(pmb, phba->mbox_mem_pool); 1157 1158 lpfc_linkdown(phba); 1159 1160 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1161 "0200 CONFIG_LINK bad hba state x%x\n", 1162 vport->port_state); 1163 1164 lpfc_issue_clear_la(phba, vport); 1165 return; 1166 } 1167 1168 /** 1169 * lpfc_sli4_clear_fcf_rr_bmask 1170 * @phba pointer to the struct lpfc_hba for this port. 1171 * This fucnction resets the round robin bit mask and clears the 1172 * fcf priority list. The list deletions are done while holding the 1173 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1174 * from the lpfc_fcf_pri record. 1175 **/ 1176 void 1177 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1178 { 1179 struct lpfc_fcf_pri *fcf_pri; 1180 struct lpfc_fcf_pri *next_fcf_pri; 1181 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1182 spin_lock_irq(&phba->hbalock); 1183 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1184 &phba->fcf.fcf_pri_list, list) { 1185 list_del_init(&fcf_pri->list); 1186 fcf_pri->fcf_rec.flag = 0; 1187 } 1188 spin_unlock_irq(&phba->hbalock); 1189 } 1190 static void 1191 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1192 { 1193 struct lpfc_vport *vport = mboxq->vport; 1194 1195 if (mboxq->u.mb.mbxStatus) { 1196 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1197 "2017 REG_FCFI mbxStatus error x%x " 1198 "HBA state x%x\n", 1199 mboxq->u.mb.mbxStatus, vport->port_state); 1200 goto fail_out; 1201 } 1202 1203 /* Start FCoE discovery by sending a FLOGI. */ 1204 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1205 /* Set the FCFI registered flag */ 1206 spin_lock_irq(&phba->hbalock); 1207 phba->fcf.fcf_flag |= FCF_REGISTERED; 1208 spin_unlock_irq(&phba->hbalock); 1209 1210 /* If there is a pending FCoE event, restart FCF table scan. */ 1211 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1212 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1213 goto fail_out; 1214 1215 /* Mark successful completion of FCF table scan */ 1216 spin_lock_irq(&phba->hbalock); 1217 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1218 phba->hba_flag &= ~FCF_TS_INPROG; 1219 if (vport->port_state != LPFC_FLOGI) { 1220 phba->hba_flag |= FCF_RR_INPROG; 1221 spin_unlock_irq(&phba->hbalock); 1222 lpfc_issue_init_vfi(vport); 1223 goto out; 1224 } 1225 spin_unlock_irq(&phba->hbalock); 1226 goto out; 1227 1228 fail_out: 1229 spin_lock_irq(&phba->hbalock); 1230 phba->hba_flag &= ~FCF_RR_INPROG; 1231 spin_unlock_irq(&phba->hbalock); 1232 out: 1233 mempool_free(mboxq, phba->mbox_mem_pool); 1234 } 1235 1236 /** 1237 * lpfc_fab_name_match - Check if the fcf fabric name match. 1238 * @fab_name: pointer to fabric name. 1239 * @new_fcf_record: pointer to fcf record. 1240 * 1241 * This routine compare the fcf record's fabric name with provided 1242 * fabric name. If the fabric name are identical this function 1243 * returns 1 else return 0. 1244 **/ 1245 static uint32_t 1246 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1247 { 1248 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1249 return 0; 1250 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1251 return 0; 1252 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1253 return 0; 1254 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1255 return 0; 1256 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1257 return 0; 1258 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1259 return 0; 1260 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1261 return 0; 1262 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1263 return 0; 1264 return 1; 1265 } 1266 1267 /** 1268 * lpfc_sw_name_match - Check if the fcf switch name match. 1269 * @fab_name: pointer to fabric name. 1270 * @new_fcf_record: pointer to fcf record. 1271 * 1272 * This routine compare the fcf record's switch name with provided 1273 * switch name. If the switch name are identical this function 1274 * returns 1 else return 0. 1275 **/ 1276 static uint32_t 1277 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1278 { 1279 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1280 return 0; 1281 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1282 return 0; 1283 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1284 return 0; 1285 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1286 return 0; 1287 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1288 return 0; 1289 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1290 return 0; 1291 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1292 return 0; 1293 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1294 return 0; 1295 return 1; 1296 } 1297 1298 /** 1299 * lpfc_mac_addr_match - Check if the fcf mac address match. 1300 * @mac_addr: pointer to mac address. 1301 * @new_fcf_record: pointer to fcf record. 1302 * 1303 * This routine compare the fcf record's mac address with HBA's 1304 * FCF mac address. If the mac addresses are identical this function 1305 * returns 1 else return 0. 1306 **/ 1307 static uint32_t 1308 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1309 { 1310 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1311 return 0; 1312 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1313 return 0; 1314 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1315 return 0; 1316 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1317 return 0; 1318 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1319 return 0; 1320 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1321 return 0; 1322 return 1; 1323 } 1324 1325 static bool 1326 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1327 { 1328 return (curr_vlan_id == new_vlan_id); 1329 } 1330 1331 /** 1332 * lpfc_update_fcf_record - Update driver fcf record 1333 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1334 * @phba: pointer to lpfc hba data structure. 1335 * @fcf_index: Index for the lpfc_fcf_record. 1336 * @new_fcf_record: pointer to hba fcf record. 1337 * 1338 * This routine updates the driver FCF priority record from the new HBA FCF 1339 * record. This routine is called with the host lock held. 1340 **/ 1341 static void 1342 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1343 struct fcf_record *new_fcf_record 1344 ) 1345 { 1346 struct lpfc_fcf_pri *fcf_pri; 1347 1348 lockdep_assert_held(&phba->hbalock); 1349 1350 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1351 fcf_pri->fcf_rec.fcf_index = fcf_index; 1352 /* FCF record priority */ 1353 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1354 1355 } 1356 1357 /** 1358 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1359 * @fcf: pointer to driver fcf record. 1360 * @new_fcf_record: pointer to fcf record. 1361 * 1362 * This routine copies the FCF information from the FCF 1363 * record to lpfc_hba data structure. 1364 **/ 1365 static void 1366 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1367 struct fcf_record *new_fcf_record) 1368 { 1369 /* Fabric name */ 1370 fcf_rec->fabric_name[0] = 1371 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1372 fcf_rec->fabric_name[1] = 1373 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1374 fcf_rec->fabric_name[2] = 1375 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1376 fcf_rec->fabric_name[3] = 1377 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1378 fcf_rec->fabric_name[4] = 1379 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1380 fcf_rec->fabric_name[5] = 1381 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1382 fcf_rec->fabric_name[6] = 1383 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1384 fcf_rec->fabric_name[7] = 1385 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1386 /* Mac address */ 1387 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1388 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1389 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1390 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1391 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1392 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1393 /* FCF record index */ 1394 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1395 /* FCF record priority */ 1396 fcf_rec->priority = new_fcf_record->fip_priority; 1397 /* Switch name */ 1398 fcf_rec->switch_name[0] = 1399 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1400 fcf_rec->switch_name[1] = 1401 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1402 fcf_rec->switch_name[2] = 1403 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1404 fcf_rec->switch_name[3] = 1405 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1406 fcf_rec->switch_name[4] = 1407 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1408 fcf_rec->switch_name[5] = 1409 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1410 fcf_rec->switch_name[6] = 1411 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1412 fcf_rec->switch_name[7] = 1413 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1414 } 1415 1416 /** 1417 * lpfc_update_fcf_record - Update driver fcf record 1418 * @phba: pointer to lpfc hba data structure. 1419 * @fcf_rec: pointer to driver fcf record. 1420 * @new_fcf_record: pointer to hba fcf record. 1421 * @addr_mode: address mode to be set to the driver fcf record. 1422 * @vlan_id: vlan tag to be set to the driver fcf record. 1423 * @flag: flag bits to be set to the driver fcf record. 1424 * 1425 * This routine updates the driver FCF record from the new HBA FCF record 1426 * together with the address mode, vlan_id, and other informations. This 1427 * routine is called with the host lock held. 1428 **/ 1429 static void 1430 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1431 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1432 uint16_t vlan_id, uint32_t flag) 1433 { 1434 lockdep_assert_held(&phba->hbalock); 1435 1436 /* Copy the fields from the HBA's FCF record */ 1437 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1438 /* Update other fields of driver FCF record */ 1439 fcf_rec->addr_mode = addr_mode; 1440 fcf_rec->vlan_id = vlan_id; 1441 fcf_rec->flag |= (flag | RECORD_VALID); 1442 __lpfc_update_fcf_record_pri(phba, 1443 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1444 new_fcf_record); 1445 } 1446 1447 /** 1448 * lpfc_register_fcf - Register the FCF with hba. 1449 * @phba: pointer to lpfc hba data structure. 1450 * 1451 * This routine issues a register fcfi mailbox command to register 1452 * the fcf with HBA. 1453 **/ 1454 static void 1455 lpfc_register_fcf(struct lpfc_hba *phba) 1456 { 1457 LPFC_MBOXQ_t *fcf_mbxq; 1458 int rc; 1459 1460 spin_lock_irq(&phba->hbalock); 1461 /* If the FCF is not available do nothing. */ 1462 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1463 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1464 spin_unlock_irq(&phba->hbalock); 1465 return; 1466 } 1467 1468 /* The FCF is already registered, start discovery */ 1469 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1470 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1471 phba->hba_flag &= ~FCF_TS_INPROG; 1472 if (phba->pport->port_state != LPFC_FLOGI && 1473 phba->pport->fc_flag & FC_FABRIC) { 1474 phba->hba_flag |= FCF_RR_INPROG; 1475 spin_unlock_irq(&phba->hbalock); 1476 lpfc_initial_flogi(phba->pport); 1477 return; 1478 } 1479 spin_unlock_irq(&phba->hbalock); 1480 return; 1481 } 1482 spin_unlock_irq(&phba->hbalock); 1483 1484 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1485 if (!fcf_mbxq) { 1486 spin_lock_irq(&phba->hbalock); 1487 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1488 spin_unlock_irq(&phba->hbalock); 1489 return; 1490 } 1491 1492 lpfc_reg_fcfi(phba, fcf_mbxq); 1493 fcf_mbxq->vport = phba->pport; 1494 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1495 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1496 if (rc == MBX_NOT_FINISHED) { 1497 spin_lock_irq(&phba->hbalock); 1498 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1499 spin_unlock_irq(&phba->hbalock); 1500 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1501 } 1502 1503 return; 1504 } 1505 1506 /** 1507 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1508 * @phba: pointer to lpfc hba data structure. 1509 * @new_fcf_record: pointer to fcf record. 1510 * @boot_flag: Indicates if this record used by boot bios. 1511 * @addr_mode: The address mode to be used by this FCF 1512 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1513 * 1514 * This routine compare the fcf record with connect list obtained from the 1515 * config region to decide if this FCF can be used for SAN discovery. It returns 1516 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1517 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1518 * is used by boot bios and addr_mode will indicate the addressing mode to be 1519 * used for this FCF when the function returns. 1520 * If the FCF record need to be used with a particular vlan id, the vlan is 1521 * set in the vlan_id on return of the function. If not VLAN tagging need to 1522 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1523 **/ 1524 static int 1525 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1526 struct fcf_record *new_fcf_record, 1527 uint32_t *boot_flag, uint32_t *addr_mode, 1528 uint16_t *vlan_id) 1529 { 1530 struct lpfc_fcf_conn_entry *conn_entry; 1531 int i, j, fcf_vlan_id = 0; 1532 1533 /* Find the lowest VLAN id in the FCF record */ 1534 for (i = 0; i < 512; i++) { 1535 if (new_fcf_record->vlan_bitmap[i]) { 1536 fcf_vlan_id = i * 8; 1537 j = 0; 1538 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1539 j++; 1540 fcf_vlan_id++; 1541 } 1542 break; 1543 } 1544 } 1545 1546 /* FCF not valid/available or solicitation in progress */ 1547 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1548 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1549 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1550 return 0; 1551 1552 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1553 *boot_flag = 0; 1554 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1555 new_fcf_record); 1556 if (phba->valid_vlan) 1557 *vlan_id = phba->vlan_id; 1558 else 1559 *vlan_id = LPFC_FCOE_NULL_VID; 1560 return 1; 1561 } 1562 1563 /* 1564 * If there are no FCF connection table entry, driver connect to all 1565 * FCFs. 1566 */ 1567 if (list_empty(&phba->fcf_conn_rec_list)) { 1568 *boot_flag = 0; 1569 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1570 new_fcf_record); 1571 1572 /* 1573 * When there are no FCF connect entries, use driver's default 1574 * addressing mode - FPMA. 1575 */ 1576 if (*addr_mode & LPFC_FCF_FPMA) 1577 *addr_mode = LPFC_FCF_FPMA; 1578 1579 /* If FCF record report a vlan id use that vlan id */ 1580 if (fcf_vlan_id) 1581 *vlan_id = fcf_vlan_id; 1582 else 1583 *vlan_id = LPFC_FCOE_NULL_VID; 1584 return 1; 1585 } 1586 1587 list_for_each_entry(conn_entry, 1588 &phba->fcf_conn_rec_list, list) { 1589 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1590 continue; 1591 1592 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1593 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1594 new_fcf_record)) 1595 continue; 1596 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1597 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1598 new_fcf_record)) 1599 continue; 1600 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1601 /* 1602 * If the vlan bit map does not have the bit set for the 1603 * vlan id to be used, then it is not a match. 1604 */ 1605 if (!(new_fcf_record->vlan_bitmap 1606 [conn_entry->conn_rec.vlan_tag / 8] & 1607 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1608 continue; 1609 } 1610 1611 /* 1612 * If connection record does not support any addressing mode, 1613 * skip the FCF record. 1614 */ 1615 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1616 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1617 continue; 1618 1619 /* 1620 * Check if the connection record specifies a required 1621 * addressing mode. 1622 */ 1623 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1624 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1625 1626 /* 1627 * If SPMA required but FCF not support this continue. 1628 */ 1629 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1630 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1631 new_fcf_record) & LPFC_FCF_SPMA)) 1632 continue; 1633 1634 /* 1635 * If FPMA required but FCF not support this continue. 1636 */ 1637 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1638 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1639 new_fcf_record) & LPFC_FCF_FPMA)) 1640 continue; 1641 } 1642 1643 /* 1644 * This fcf record matches filtering criteria. 1645 */ 1646 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1647 *boot_flag = 1; 1648 else 1649 *boot_flag = 0; 1650 1651 /* 1652 * If user did not specify any addressing mode, or if the 1653 * preferred addressing mode specified by user is not supported 1654 * by FCF, allow fabric to pick the addressing mode. 1655 */ 1656 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1657 new_fcf_record); 1658 /* 1659 * If the user specified a required address mode, assign that 1660 * address mode 1661 */ 1662 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1663 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1664 *addr_mode = (conn_entry->conn_rec.flags & 1665 FCFCNCT_AM_SPMA) ? 1666 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1667 /* 1668 * If the user specified a preferred address mode, use the 1669 * addr mode only if FCF support the addr_mode. 1670 */ 1671 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1672 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1673 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1674 (*addr_mode & LPFC_FCF_SPMA)) 1675 *addr_mode = LPFC_FCF_SPMA; 1676 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1677 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1678 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1679 (*addr_mode & LPFC_FCF_FPMA)) 1680 *addr_mode = LPFC_FCF_FPMA; 1681 1682 /* If matching connect list has a vlan id, use it */ 1683 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1684 *vlan_id = conn_entry->conn_rec.vlan_tag; 1685 /* 1686 * If no vlan id is specified in connect list, use the vlan id 1687 * in the FCF record 1688 */ 1689 else if (fcf_vlan_id) 1690 *vlan_id = fcf_vlan_id; 1691 else 1692 *vlan_id = LPFC_FCOE_NULL_VID; 1693 1694 return 1; 1695 } 1696 1697 return 0; 1698 } 1699 1700 /** 1701 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1702 * @phba: pointer to lpfc hba data structure. 1703 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1704 * 1705 * This function check if there is any fcoe event pending while driver 1706 * scan FCF entries. If there is any pending event, it will restart the 1707 * FCF saning and return 1 else return 0. 1708 */ 1709 int 1710 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1711 { 1712 /* 1713 * If the Link is up and no FCoE events while in the 1714 * FCF discovery, no need to restart FCF discovery. 1715 */ 1716 if ((phba->link_state >= LPFC_LINK_UP) && 1717 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1718 return 0; 1719 1720 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1721 "2768 Pending link or FCF event during current " 1722 "handling of the previous event: link_state:x%x, " 1723 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1724 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1725 phba->fcoe_eventtag); 1726 1727 spin_lock_irq(&phba->hbalock); 1728 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1729 spin_unlock_irq(&phba->hbalock); 1730 1731 if (phba->link_state >= LPFC_LINK_UP) { 1732 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1733 "2780 Restart FCF table scan due to " 1734 "pending FCF event:evt_tag_at_scan:x%x, " 1735 "evt_tag_current:x%x\n", 1736 phba->fcoe_eventtag_at_fcf_scan, 1737 phba->fcoe_eventtag); 1738 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1739 } else { 1740 /* 1741 * Do not continue FCF discovery and clear FCF_TS_INPROG 1742 * flag 1743 */ 1744 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1745 "2833 Stop FCF discovery process due to link " 1746 "state change (x%x)\n", phba->link_state); 1747 spin_lock_irq(&phba->hbalock); 1748 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1749 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1750 spin_unlock_irq(&phba->hbalock); 1751 } 1752 1753 /* Unregister the currently registered FCF if required */ 1754 if (unreg_fcf) { 1755 spin_lock_irq(&phba->hbalock); 1756 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1757 spin_unlock_irq(&phba->hbalock); 1758 lpfc_sli4_unregister_fcf(phba); 1759 } 1760 return 1; 1761 } 1762 1763 /** 1764 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1765 * @phba: pointer to lpfc hba data structure. 1766 * @fcf_cnt: number of eligible fcf record seen so far. 1767 * 1768 * This function makes an running random selection decision on FCF record to 1769 * use through a sequence of @fcf_cnt eligible FCF records with equal 1770 * probability. To perform integer manunipulation of random numbers with 1771 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1772 * from prandom_u32() are taken as the random random number generated. 1773 * 1774 * Returns true when outcome is for the newly read FCF record should be 1775 * chosen; otherwise, return false when outcome is for keeping the previously 1776 * chosen FCF record. 1777 **/ 1778 static bool 1779 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1780 { 1781 uint32_t rand_num; 1782 1783 /* Get 16-bit uniform random number */ 1784 rand_num = 0xFFFF & prandom_u32(); 1785 1786 /* Decision with probability 1/fcf_cnt */ 1787 if ((fcf_cnt * rand_num) < 0xFFFF) 1788 return true; 1789 else 1790 return false; 1791 } 1792 1793 /** 1794 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1795 * @phba: pointer to lpfc hba data structure. 1796 * @mboxq: pointer to mailbox object. 1797 * @next_fcf_index: pointer to holder of next fcf index. 1798 * 1799 * This routine parses the non-embedded fcf mailbox command by performing the 1800 * necessarily error checking, non-embedded read FCF record mailbox command 1801 * SGE parsing, and endianness swapping. 1802 * 1803 * Returns the pointer to the new FCF record in the non-embedded mailbox 1804 * command DMA memory if successfully, other NULL. 1805 */ 1806 static struct fcf_record * 1807 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1808 uint16_t *next_fcf_index) 1809 { 1810 void *virt_addr; 1811 struct lpfc_mbx_sge sge; 1812 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1813 uint32_t shdr_status, shdr_add_status, if_type; 1814 union lpfc_sli4_cfg_shdr *shdr; 1815 struct fcf_record *new_fcf_record; 1816 1817 /* Get the first SGE entry from the non-embedded DMA memory. This 1818 * routine only uses a single SGE. 1819 */ 1820 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1821 if (unlikely(!mboxq->sge_array)) { 1822 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1823 "2524 Failed to get the non-embedded SGE " 1824 "virtual address\n"); 1825 return NULL; 1826 } 1827 virt_addr = mboxq->sge_array->addr[0]; 1828 1829 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1830 lpfc_sli_pcimem_bcopy(shdr, shdr, 1831 sizeof(union lpfc_sli4_cfg_shdr)); 1832 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1833 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1834 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1835 if (shdr_status || shdr_add_status) { 1836 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1837 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1838 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1839 "2726 READ_FCF_RECORD Indicates empty " 1840 "FCF table.\n"); 1841 else 1842 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1843 "2521 READ_FCF_RECORD mailbox failed " 1844 "with status x%x add_status x%x, " 1845 "mbx\n", shdr_status, shdr_add_status); 1846 return NULL; 1847 } 1848 1849 /* Interpreting the returned information of the FCF record */ 1850 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1851 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1852 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1853 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1854 new_fcf_record = (struct fcf_record *)(virt_addr + 1855 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1856 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1857 offsetof(struct fcf_record, vlan_bitmap)); 1858 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1859 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1860 1861 return new_fcf_record; 1862 } 1863 1864 /** 1865 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1866 * @phba: pointer to lpfc hba data structure. 1867 * @fcf_record: pointer to the fcf record. 1868 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1869 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1870 * 1871 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1872 * enabled. 1873 **/ 1874 static void 1875 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1876 struct fcf_record *fcf_record, 1877 uint16_t vlan_id, 1878 uint16_t next_fcf_index) 1879 { 1880 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1881 "2764 READ_FCF_RECORD:\n" 1882 "\tFCF_Index : x%x\n" 1883 "\tFCF_Avail : x%x\n" 1884 "\tFCF_Valid : x%x\n" 1885 "\tFCF_SOL : x%x\n" 1886 "\tFIP_Priority : x%x\n" 1887 "\tMAC_Provider : x%x\n" 1888 "\tLowest VLANID : x%x\n" 1889 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1890 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1891 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1892 "\tNext_FCF_Index: x%x\n", 1893 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1894 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1895 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1896 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1897 fcf_record->fip_priority, 1898 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1899 vlan_id, 1900 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1901 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1902 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1903 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1904 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1905 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1906 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1907 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1908 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1909 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1910 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1911 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1912 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1913 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1914 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1915 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1916 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1917 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1918 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1919 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1920 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1921 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1922 next_fcf_index); 1923 } 1924 1925 /** 1926 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1927 * @phba: pointer to lpfc hba data structure. 1928 * @fcf_rec: pointer to an existing FCF record. 1929 * @new_fcf_record: pointer to a new FCF record. 1930 * @new_vlan_id: vlan id from the new FCF record. 1931 * 1932 * This function performs matching test of a new FCF record against an existing 1933 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1934 * will not be used as part of the FCF record matching criteria. 1935 * 1936 * Returns true if all the fields matching, otherwise returns false. 1937 */ 1938 static bool 1939 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1940 struct lpfc_fcf_rec *fcf_rec, 1941 struct fcf_record *new_fcf_record, 1942 uint16_t new_vlan_id) 1943 { 1944 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1945 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1946 return false; 1947 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1948 return false; 1949 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1950 return false; 1951 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1952 return false; 1953 if (fcf_rec->priority != new_fcf_record->fip_priority) 1954 return false; 1955 return true; 1956 } 1957 1958 /** 1959 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1960 * @vport: Pointer to vport object. 1961 * @fcf_index: index to next fcf. 1962 * 1963 * This function processing the roundrobin fcf failover to next fcf index. 1964 * When this function is invoked, there will be a current fcf registered 1965 * for flogi. 1966 * Return: 0 for continue retrying flogi on currently registered fcf; 1967 * 1 for stop flogi on currently registered fcf; 1968 */ 1969 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1970 { 1971 struct lpfc_hba *phba = vport->phba; 1972 int rc; 1973 1974 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1975 spin_lock_irq(&phba->hbalock); 1976 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 1977 spin_unlock_irq(&phba->hbalock); 1978 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1979 "2872 Devloss tmo with no eligible " 1980 "FCF, unregister in-use FCF (x%x) " 1981 "and rescan FCF table\n", 1982 phba->fcf.current_rec.fcf_indx); 1983 lpfc_unregister_fcf_rescan(phba); 1984 goto stop_flogi_current_fcf; 1985 } 1986 /* Mark the end to FLOGI roundrobin failover */ 1987 phba->hba_flag &= ~FCF_RR_INPROG; 1988 /* Allow action to new fcf asynchronous event */ 1989 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 1990 spin_unlock_irq(&phba->hbalock); 1991 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1992 "2865 No FCF available, stop roundrobin FCF " 1993 "failover and change port state:x%x/x%x\n", 1994 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 1995 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 1996 goto stop_flogi_current_fcf; 1997 } else { 1998 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 1999 "2794 Try FLOGI roundrobin FCF failover to " 2000 "(x%x)\n", fcf_index); 2001 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2002 if (rc) 2003 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2004 "2761 FLOGI roundrobin FCF failover " 2005 "failed (rc:x%x) to read FCF (x%x)\n", 2006 rc, phba->fcf.current_rec.fcf_indx); 2007 else 2008 goto stop_flogi_current_fcf; 2009 } 2010 return 0; 2011 2012 stop_flogi_current_fcf: 2013 lpfc_can_disctmo(vport); 2014 return 1; 2015 } 2016 2017 /** 2018 * lpfc_sli4_fcf_pri_list_del 2019 * @phba: pointer to lpfc hba data structure. 2020 * @fcf_index the index of the fcf record to delete 2021 * This routine checks the on list flag of the fcf_index to be deleted. 2022 * If it is one the list then it is removed from the list, and the flag 2023 * is cleared. This routine grab the hbalock before removing the fcf 2024 * record from the list. 2025 **/ 2026 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2027 uint16_t fcf_index) 2028 { 2029 struct lpfc_fcf_pri *new_fcf_pri; 2030 2031 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2032 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2033 "3058 deleting idx x%x pri x%x flg x%x\n", 2034 fcf_index, new_fcf_pri->fcf_rec.priority, 2035 new_fcf_pri->fcf_rec.flag); 2036 spin_lock_irq(&phba->hbalock); 2037 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2038 if (phba->fcf.current_rec.priority == 2039 new_fcf_pri->fcf_rec.priority) 2040 phba->fcf.eligible_fcf_cnt--; 2041 list_del_init(&new_fcf_pri->list); 2042 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2043 } 2044 spin_unlock_irq(&phba->hbalock); 2045 } 2046 2047 /** 2048 * lpfc_sli4_set_fcf_flogi_fail 2049 * @phba: pointer to lpfc hba data structure. 2050 * @fcf_index the index of the fcf record to update 2051 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2052 * flag so the the round robin slection for the particular priority level 2053 * will try a different fcf record that does not have this bit set. 2054 * If the fcf record is re-read for any reason this flag is cleared brfore 2055 * adding it to the priority list. 2056 **/ 2057 void 2058 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2059 { 2060 struct lpfc_fcf_pri *new_fcf_pri; 2061 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2062 spin_lock_irq(&phba->hbalock); 2063 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2064 spin_unlock_irq(&phba->hbalock); 2065 } 2066 2067 /** 2068 * lpfc_sli4_fcf_pri_list_add 2069 * @phba: pointer to lpfc hba data structure. 2070 * @fcf_index the index of the fcf record to add 2071 * This routine checks the priority of the fcf_index to be added. 2072 * If it is a lower priority than the current head of the fcf_pri list 2073 * then it is added to the list in the right order. 2074 * If it is the same priority as the current head of the list then it 2075 * is added to the head of the list and its bit in the rr_bmask is set. 2076 * If the fcf_index to be added is of a higher priority than the current 2077 * head of the list then the rr_bmask is cleared, its bit is set in the 2078 * rr_bmask and it is added to the head of the list. 2079 * returns: 2080 * 0=success 1=failure 2081 **/ 2082 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2083 uint16_t fcf_index, 2084 struct fcf_record *new_fcf_record) 2085 { 2086 uint16_t current_fcf_pri; 2087 uint16_t last_index; 2088 struct lpfc_fcf_pri *fcf_pri; 2089 struct lpfc_fcf_pri *next_fcf_pri; 2090 struct lpfc_fcf_pri *new_fcf_pri; 2091 int ret; 2092 2093 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2094 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2095 "3059 adding idx x%x pri x%x flg x%x\n", 2096 fcf_index, new_fcf_record->fip_priority, 2097 new_fcf_pri->fcf_rec.flag); 2098 spin_lock_irq(&phba->hbalock); 2099 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2100 list_del_init(&new_fcf_pri->list); 2101 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2102 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2103 if (list_empty(&phba->fcf.fcf_pri_list)) { 2104 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2105 ret = lpfc_sli4_fcf_rr_index_set(phba, 2106 new_fcf_pri->fcf_rec.fcf_index); 2107 goto out; 2108 } 2109 2110 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2111 LPFC_SLI4_FCF_TBL_INDX_MAX); 2112 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2113 ret = 0; /* Empty rr list */ 2114 goto out; 2115 } 2116 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2117 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2118 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2119 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2120 memset(phba->fcf.fcf_rr_bmask, 0, 2121 sizeof(*phba->fcf.fcf_rr_bmask)); 2122 /* fcfs_at_this_priority_level = 1; */ 2123 phba->fcf.eligible_fcf_cnt = 1; 2124 } else 2125 /* fcfs_at_this_priority_level++; */ 2126 phba->fcf.eligible_fcf_cnt++; 2127 ret = lpfc_sli4_fcf_rr_index_set(phba, 2128 new_fcf_pri->fcf_rec.fcf_index); 2129 goto out; 2130 } 2131 2132 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2133 &phba->fcf.fcf_pri_list, list) { 2134 if (new_fcf_pri->fcf_rec.priority <= 2135 fcf_pri->fcf_rec.priority) { 2136 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2137 list_add(&new_fcf_pri->list, 2138 &phba->fcf.fcf_pri_list); 2139 else 2140 list_add(&new_fcf_pri->list, 2141 &((struct lpfc_fcf_pri *) 2142 fcf_pri->list.prev)->list); 2143 ret = 0; 2144 goto out; 2145 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2146 || new_fcf_pri->fcf_rec.priority < 2147 next_fcf_pri->fcf_rec.priority) { 2148 list_add(&new_fcf_pri->list, &fcf_pri->list); 2149 ret = 0; 2150 goto out; 2151 } 2152 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2153 continue; 2154 2155 } 2156 ret = 1; 2157 out: 2158 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2159 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2160 spin_unlock_irq(&phba->hbalock); 2161 return ret; 2162 } 2163 2164 /** 2165 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2166 * @phba: pointer to lpfc hba data structure. 2167 * @mboxq: pointer to mailbox object. 2168 * 2169 * This function iterates through all the fcf records available in 2170 * HBA and chooses the optimal FCF record for discovery. After finding 2171 * the FCF for discovery it registers the FCF record and kicks start 2172 * discovery. 2173 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2174 * use an FCF record which matches fabric name and mac address of the 2175 * currently used FCF record. 2176 * If the driver supports only one FCF, it will try to use the FCF record 2177 * used by BOOT_BIOS. 2178 */ 2179 void 2180 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2181 { 2182 struct fcf_record *new_fcf_record; 2183 uint32_t boot_flag, addr_mode; 2184 uint16_t fcf_index, next_fcf_index; 2185 struct lpfc_fcf_rec *fcf_rec = NULL; 2186 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2187 bool select_new_fcf; 2188 int rc; 2189 2190 /* If there is pending FCoE event restart FCF table scan */ 2191 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2192 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2193 return; 2194 } 2195 2196 /* Parse the FCF record from the non-embedded mailbox command */ 2197 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2198 &next_fcf_index); 2199 if (!new_fcf_record) { 2200 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2201 "2765 Mailbox command READ_FCF_RECORD " 2202 "failed to retrieve a FCF record.\n"); 2203 /* Let next new FCF event trigger fast failover */ 2204 spin_lock_irq(&phba->hbalock); 2205 phba->hba_flag &= ~FCF_TS_INPROG; 2206 spin_unlock_irq(&phba->hbalock); 2207 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2208 return; 2209 } 2210 2211 /* Check the FCF record against the connection list */ 2212 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2213 &addr_mode, &vlan_id); 2214 2215 /* Log the FCF record information if turned on */ 2216 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2217 next_fcf_index); 2218 2219 /* 2220 * If the fcf record does not match with connect list entries 2221 * read the next entry; otherwise, this is an eligible FCF 2222 * record for roundrobin FCF failover. 2223 */ 2224 if (!rc) { 2225 lpfc_sli4_fcf_pri_list_del(phba, 2226 bf_get(lpfc_fcf_record_fcf_index, 2227 new_fcf_record)); 2228 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2229 "2781 FCF (x%x) failed connection " 2230 "list check: (x%x/x%x/%x)\n", 2231 bf_get(lpfc_fcf_record_fcf_index, 2232 new_fcf_record), 2233 bf_get(lpfc_fcf_record_fcf_avail, 2234 new_fcf_record), 2235 bf_get(lpfc_fcf_record_fcf_valid, 2236 new_fcf_record), 2237 bf_get(lpfc_fcf_record_fcf_sol, 2238 new_fcf_record)); 2239 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2240 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2241 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2242 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2243 phba->fcf.current_rec.fcf_indx) { 2244 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2245 "2862 FCF (x%x) matches property " 2246 "of in-use FCF (x%x)\n", 2247 bf_get(lpfc_fcf_record_fcf_index, 2248 new_fcf_record), 2249 phba->fcf.current_rec.fcf_indx); 2250 goto read_next_fcf; 2251 } 2252 /* 2253 * In case the current in-use FCF record becomes 2254 * invalid/unavailable during FCF discovery that 2255 * was not triggered by fast FCF failover process, 2256 * treat it as fast FCF failover. 2257 */ 2258 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2259 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2260 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2261 "2835 Invalid in-use FCF " 2262 "(x%x), enter FCF failover " 2263 "table scan.\n", 2264 phba->fcf.current_rec.fcf_indx); 2265 spin_lock_irq(&phba->hbalock); 2266 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2267 spin_unlock_irq(&phba->hbalock); 2268 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2269 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2270 LPFC_FCOE_FCF_GET_FIRST); 2271 return; 2272 } 2273 } 2274 goto read_next_fcf; 2275 } else { 2276 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2277 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2278 new_fcf_record); 2279 if (rc) 2280 goto read_next_fcf; 2281 } 2282 2283 /* 2284 * If this is not the first FCF discovery of the HBA, use last 2285 * FCF record for the discovery. The condition that a rescan 2286 * matches the in-use FCF record: fabric name, switch name, mac 2287 * address, and vlan_id. 2288 */ 2289 spin_lock_irq(&phba->hbalock); 2290 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2291 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2292 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2293 new_fcf_record, vlan_id)) { 2294 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2295 phba->fcf.current_rec.fcf_indx) { 2296 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2297 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2298 /* Stop FCF redisc wait timer */ 2299 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2300 phba); 2301 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2302 /* Fast failover, mark completed */ 2303 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2304 spin_unlock_irq(&phba->hbalock); 2305 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2306 "2836 New FCF matches in-use " 2307 "FCF (x%x), port_state:x%x, " 2308 "fc_flag:x%x\n", 2309 phba->fcf.current_rec.fcf_indx, 2310 phba->pport->port_state, 2311 phba->pport->fc_flag); 2312 goto out; 2313 } else 2314 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2315 "2863 New FCF (x%x) matches " 2316 "property of in-use FCF (x%x)\n", 2317 bf_get(lpfc_fcf_record_fcf_index, 2318 new_fcf_record), 2319 phba->fcf.current_rec.fcf_indx); 2320 } 2321 /* 2322 * Read next FCF record from HBA searching for the matching 2323 * with in-use record only if not during the fast failover 2324 * period. In case of fast failover period, it shall try to 2325 * determine whether the FCF record just read should be the 2326 * next candidate. 2327 */ 2328 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2329 spin_unlock_irq(&phba->hbalock); 2330 goto read_next_fcf; 2331 } 2332 } 2333 /* 2334 * Update on failover FCF record only if it's in FCF fast-failover 2335 * period; otherwise, update on current FCF record. 2336 */ 2337 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2338 fcf_rec = &phba->fcf.failover_rec; 2339 else 2340 fcf_rec = &phba->fcf.current_rec; 2341 2342 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2343 /* 2344 * If the driver FCF record does not have boot flag 2345 * set and new hba fcf record has boot flag set, use 2346 * the new hba fcf record. 2347 */ 2348 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2349 /* Choose this FCF record */ 2350 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2351 "2837 Update current FCF record " 2352 "(x%x) with new FCF record (x%x)\n", 2353 fcf_rec->fcf_indx, 2354 bf_get(lpfc_fcf_record_fcf_index, 2355 new_fcf_record)); 2356 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2357 addr_mode, vlan_id, BOOT_ENABLE); 2358 spin_unlock_irq(&phba->hbalock); 2359 goto read_next_fcf; 2360 } 2361 /* 2362 * If the driver FCF record has boot flag set and the 2363 * new hba FCF record does not have boot flag, read 2364 * the next FCF record. 2365 */ 2366 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2367 spin_unlock_irq(&phba->hbalock); 2368 goto read_next_fcf; 2369 } 2370 /* 2371 * If the new hba FCF record has lower priority value 2372 * than the driver FCF record, use the new record. 2373 */ 2374 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2375 /* Choose the new FCF record with lower priority */ 2376 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2377 "2838 Update current FCF record " 2378 "(x%x) with new FCF record (x%x)\n", 2379 fcf_rec->fcf_indx, 2380 bf_get(lpfc_fcf_record_fcf_index, 2381 new_fcf_record)); 2382 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2383 addr_mode, vlan_id, 0); 2384 /* Reset running random FCF selection count */ 2385 phba->fcf.eligible_fcf_cnt = 1; 2386 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2387 /* Update running random FCF selection count */ 2388 phba->fcf.eligible_fcf_cnt++; 2389 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2390 phba->fcf.eligible_fcf_cnt); 2391 if (select_new_fcf) { 2392 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2393 "2839 Update current FCF record " 2394 "(x%x) with new FCF record (x%x)\n", 2395 fcf_rec->fcf_indx, 2396 bf_get(lpfc_fcf_record_fcf_index, 2397 new_fcf_record)); 2398 /* Choose the new FCF by random selection */ 2399 __lpfc_update_fcf_record(phba, fcf_rec, 2400 new_fcf_record, 2401 addr_mode, vlan_id, 0); 2402 } 2403 } 2404 spin_unlock_irq(&phba->hbalock); 2405 goto read_next_fcf; 2406 } 2407 /* 2408 * This is the first suitable FCF record, choose this record for 2409 * initial best-fit FCF. 2410 */ 2411 if (fcf_rec) { 2412 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2413 "2840 Update initial FCF candidate " 2414 "with FCF (x%x)\n", 2415 bf_get(lpfc_fcf_record_fcf_index, 2416 new_fcf_record)); 2417 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2418 addr_mode, vlan_id, (boot_flag ? 2419 BOOT_ENABLE : 0)); 2420 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2421 /* Setup initial running random FCF selection count */ 2422 phba->fcf.eligible_fcf_cnt = 1; 2423 } 2424 spin_unlock_irq(&phba->hbalock); 2425 goto read_next_fcf; 2426 2427 read_next_fcf: 2428 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2429 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2430 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2431 /* 2432 * Case of FCF fast failover scan 2433 */ 2434 2435 /* 2436 * It has not found any suitable FCF record, cancel 2437 * FCF scan inprogress, and do nothing 2438 */ 2439 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2440 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2441 "2782 No suitable FCF found: " 2442 "(x%x/x%x)\n", 2443 phba->fcoe_eventtag_at_fcf_scan, 2444 bf_get(lpfc_fcf_record_fcf_index, 2445 new_fcf_record)); 2446 spin_lock_irq(&phba->hbalock); 2447 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2448 phba->hba_flag &= ~FCF_TS_INPROG; 2449 spin_unlock_irq(&phba->hbalock); 2450 /* Unregister in-use FCF and rescan */ 2451 lpfc_printf_log(phba, KERN_INFO, 2452 LOG_FIP, 2453 "2864 On devloss tmo " 2454 "unreg in-use FCF and " 2455 "rescan FCF table\n"); 2456 lpfc_unregister_fcf_rescan(phba); 2457 return; 2458 } 2459 /* 2460 * Let next new FCF event trigger fast failover 2461 */ 2462 phba->hba_flag &= ~FCF_TS_INPROG; 2463 spin_unlock_irq(&phba->hbalock); 2464 return; 2465 } 2466 /* 2467 * It has found a suitable FCF record that is not 2468 * the same as in-use FCF record, unregister the 2469 * in-use FCF record, replace the in-use FCF record 2470 * with the new FCF record, mark FCF fast failover 2471 * completed, and then start register the new FCF 2472 * record. 2473 */ 2474 2475 /* Unregister the current in-use FCF record */ 2476 lpfc_unregister_fcf(phba); 2477 2478 /* Replace in-use record with the new record */ 2479 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2480 "2842 Replace in-use FCF (x%x) " 2481 "with failover FCF (x%x)\n", 2482 phba->fcf.current_rec.fcf_indx, 2483 phba->fcf.failover_rec.fcf_indx); 2484 memcpy(&phba->fcf.current_rec, 2485 &phba->fcf.failover_rec, 2486 sizeof(struct lpfc_fcf_rec)); 2487 /* 2488 * Mark the fast FCF failover rediscovery completed 2489 * and the start of the first round of the roundrobin 2490 * FCF failover. 2491 */ 2492 spin_lock_irq(&phba->hbalock); 2493 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2494 spin_unlock_irq(&phba->hbalock); 2495 /* Register to the new FCF record */ 2496 lpfc_register_fcf(phba); 2497 } else { 2498 /* 2499 * In case of transaction period to fast FCF failover, 2500 * do nothing when search to the end of the FCF table. 2501 */ 2502 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2503 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2504 return; 2505 2506 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2507 phba->fcf.fcf_flag & FCF_IN_USE) { 2508 /* 2509 * In case the current in-use FCF record no 2510 * longer existed during FCF discovery that 2511 * was not triggered by fast FCF failover 2512 * process, treat it as fast FCF failover. 2513 */ 2514 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2515 "2841 In-use FCF record (x%x) " 2516 "not reported, entering fast " 2517 "FCF failover mode scanning.\n", 2518 phba->fcf.current_rec.fcf_indx); 2519 spin_lock_irq(&phba->hbalock); 2520 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2521 spin_unlock_irq(&phba->hbalock); 2522 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2523 LPFC_FCOE_FCF_GET_FIRST); 2524 return; 2525 } 2526 /* Register to the new FCF record */ 2527 lpfc_register_fcf(phba); 2528 } 2529 } else 2530 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2531 return; 2532 2533 out: 2534 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2535 lpfc_register_fcf(phba); 2536 2537 return; 2538 } 2539 2540 /** 2541 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2542 * @phba: pointer to lpfc hba data structure. 2543 * @mboxq: pointer to mailbox object. 2544 * 2545 * This is the callback function for FLOGI failure roundrobin FCF failover 2546 * read FCF record mailbox command from the eligible FCF record bmask for 2547 * performing the failover. If the FCF read back is not valid/available, it 2548 * fails through to retrying FLOGI to the currently registered FCF again. 2549 * Otherwise, if the FCF read back is valid and available, it will set the 2550 * newly read FCF record to the failover FCF record, unregister currently 2551 * registered FCF record, copy the failover FCF record to the current 2552 * FCF record, and then register the current FCF record before proceeding 2553 * to trying FLOGI on the new failover FCF. 2554 */ 2555 void 2556 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2557 { 2558 struct fcf_record *new_fcf_record; 2559 uint32_t boot_flag, addr_mode; 2560 uint16_t next_fcf_index, fcf_index; 2561 uint16_t current_fcf_index; 2562 uint16_t vlan_id; 2563 int rc; 2564 2565 /* If link state is not up, stop the roundrobin failover process */ 2566 if (phba->link_state < LPFC_LINK_UP) { 2567 spin_lock_irq(&phba->hbalock); 2568 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2569 phba->hba_flag &= ~FCF_RR_INPROG; 2570 spin_unlock_irq(&phba->hbalock); 2571 goto out; 2572 } 2573 2574 /* Parse the FCF record from the non-embedded mailbox command */ 2575 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2576 &next_fcf_index); 2577 if (!new_fcf_record) { 2578 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2579 "2766 Mailbox command READ_FCF_RECORD " 2580 "failed to retrieve a FCF record. " 2581 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2582 phba->fcf.fcf_flag); 2583 lpfc_unregister_fcf_rescan(phba); 2584 goto out; 2585 } 2586 2587 /* Get the needed parameters from FCF record */ 2588 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2589 &addr_mode, &vlan_id); 2590 2591 /* Log the FCF record information if turned on */ 2592 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2593 next_fcf_index); 2594 2595 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2596 if (!rc) { 2597 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2598 "2848 Remove ineligible FCF (x%x) from " 2599 "from roundrobin bmask\n", fcf_index); 2600 /* Clear roundrobin bmask bit for ineligible FCF */ 2601 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2602 /* Perform next round of roundrobin FCF failover */ 2603 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2604 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2605 if (rc) 2606 goto out; 2607 goto error_out; 2608 } 2609 2610 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2611 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2612 "2760 Perform FLOGI roundrobin FCF failover: " 2613 "FCF (x%x) back to FCF (x%x)\n", 2614 phba->fcf.current_rec.fcf_indx, fcf_index); 2615 /* Wait 500 ms before retrying FLOGI to current FCF */ 2616 msleep(500); 2617 lpfc_issue_init_vfi(phba->pport); 2618 goto out; 2619 } 2620 2621 /* Upload new FCF record to the failover FCF record */ 2622 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2623 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2624 phba->fcf.failover_rec.fcf_indx, fcf_index); 2625 spin_lock_irq(&phba->hbalock); 2626 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2627 new_fcf_record, addr_mode, vlan_id, 2628 (boot_flag ? BOOT_ENABLE : 0)); 2629 spin_unlock_irq(&phba->hbalock); 2630 2631 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2632 2633 /* Unregister the current in-use FCF record */ 2634 lpfc_unregister_fcf(phba); 2635 2636 /* Replace in-use record with the new record */ 2637 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2638 sizeof(struct lpfc_fcf_rec)); 2639 2640 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2641 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2642 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2643 2644 error_out: 2645 lpfc_register_fcf(phba); 2646 out: 2647 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2648 } 2649 2650 /** 2651 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2652 * @phba: pointer to lpfc hba data structure. 2653 * @mboxq: pointer to mailbox object. 2654 * 2655 * This is the callback function of read FCF record mailbox command for 2656 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2657 * failover when a new FCF event happened. If the FCF read back is 2658 * valid/available and it passes the connection list check, it updates 2659 * the bmask for the eligible FCF record for roundrobin failover. 2660 */ 2661 void 2662 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2663 { 2664 struct fcf_record *new_fcf_record; 2665 uint32_t boot_flag, addr_mode; 2666 uint16_t fcf_index, next_fcf_index; 2667 uint16_t vlan_id; 2668 int rc; 2669 2670 /* If link state is not up, no need to proceed */ 2671 if (phba->link_state < LPFC_LINK_UP) 2672 goto out; 2673 2674 /* If FCF discovery period is over, no need to proceed */ 2675 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2676 goto out; 2677 2678 /* Parse the FCF record from the non-embedded mailbox command */ 2679 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2680 &next_fcf_index); 2681 if (!new_fcf_record) { 2682 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2683 "2767 Mailbox command READ_FCF_RECORD " 2684 "failed to retrieve a FCF record.\n"); 2685 goto out; 2686 } 2687 2688 /* Check the connection list for eligibility */ 2689 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2690 &addr_mode, &vlan_id); 2691 2692 /* Log the FCF record information if turned on */ 2693 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2694 next_fcf_index); 2695 2696 if (!rc) 2697 goto out; 2698 2699 /* Update the eligible FCF record index bmask */ 2700 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2701 2702 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2703 2704 out: 2705 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2706 } 2707 2708 /** 2709 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2710 * @phba: pointer to lpfc hba data structure. 2711 * @mboxq: pointer to mailbox data structure. 2712 * 2713 * This function handles completion of init vfi mailbox command. 2714 */ 2715 static void 2716 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2717 { 2718 struct lpfc_vport *vport = mboxq->vport; 2719 2720 /* 2721 * VFI not supported on interface type 0, just do the flogi 2722 * Also continue if the VFI is in use - just use the same one. 2723 */ 2724 if (mboxq->u.mb.mbxStatus && 2725 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2726 LPFC_SLI_INTF_IF_TYPE_0) && 2727 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2728 lpfc_printf_vlog(vport, KERN_ERR, 2729 LOG_MBOX, 2730 "2891 Init VFI mailbox failed 0x%x\n", 2731 mboxq->u.mb.mbxStatus); 2732 mempool_free(mboxq, phba->mbox_mem_pool); 2733 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2734 return; 2735 } 2736 2737 lpfc_initial_flogi(vport); 2738 mempool_free(mboxq, phba->mbox_mem_pool); 2739 return; 2740 } 2741 2742 /** 2743 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2744 * @vport: pointer to lpfc_vport data structure. 2745 * 2746 * This function issue a init_vfi mailbox command to initialize the VFI and 2747 * VPI for the physical port. 2748 */ 2749 void 2750 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2751 { 2752 LPFC_MBOXQ_t *mboxq; 2753 int rc; 2754 struct lpfc_hba *phba = vport->phba; 2755 2756 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2757 if (!mboxq) { 2758 lpfc_printf_vlog(vport, KERN_ERR, 2759 LOG_MBOX, "2892 Failed to allocate " 2760 "init_vfi mailbox\n"); 2761 return; 2762 } 2763 lpfc_init_vfi(mboxq, vport); 2764 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2765 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2766 if (rc == MBX_NOT_FINISHED) { 2767 lpfc_printf_vlog(vport, KERN_ERR, 2768 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2769 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2770 } 2771 } 2772 2773 /** 2774 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2775 * @phba: pointer to lpfc hba data structure. 2776 * @mboxq: pointer to mailbox data structure. 2777 * 2778 * This function handles completion of init vpi mailbox command. 2779 */ 2780 void 2781 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2782 { 2783 struct lpfc_vport *vport = mboxq->vport; 2784 struct lpfc_nodelist *ndlp; 2785 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2786 2787 if (mboxq->u.mb.mbxStatus) { 2788 lpfc_printf_vlog(vport, KERN_ERR, 2789 LOG_MBOX, 2790 "2609 Init VPI mailbox failed 0x%x\n", 2791 mboxq->u.mb.mbxStatus); 2792 mempool_free(mboxq, phba->mbox_mem_pool); 2793 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2794 return; 2795 } 2796 spin_lock_irq(shost->host_lock); 2797 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2798 spin_unlock_irq(shost->host_lock); 2799 2800 /* If this port is physical port or FDISC is done, do reg_vpi */ 2801 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2802 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2803 if (!ndlp) 2804 lpfc_printf_vlog(vport, KERN_ERR, 2805 LOG_DISCOVERY, 2806 "2731 Cannot find fabric " 2807 "controller node\n"); 2808 else 2809 lpfc_register_new_vport(phba, vport, ndlp); 2810 mempool_free(mboxq, phba->mbox_mem_pool); 2811 return; 2812 } 2813 2814 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2815 lpfc_initial_fdisc(vport); 2816 else { 2817 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2818 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2819 "2606 No NPIV Fabric support\n"); 2820 } 2821 mempool_free(mboxq, phba->mbox_mem_pool); 2822 return; 2823 } 2824 2825 /** 2826 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2827 * @vport: pointer to lpfc_vport data structure. 2828 * 2829 * This function issue a init_vpi mailbox command to initialize 2830 * VPI for the vport. 2831 */ 2832 void 2833 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2834 { 2835 LPFC_MBOXQ_t *mboxq; 2836 int rc, vpi; 2837 2838 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2839 vpi = lpfc_alloc_vpi(vport->phba); 2840 if (!vpi) { 2841 lpfc_printf_vlog(vport, KERN_ERR, 2842 LOG_MBOX, 2843 "3303 Failed to obtain vport vpi\n"); 2844 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2845 return; 2846 } 2847 vport->vpi = vpi; 2848 } 2849 2850 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2851 if (!mboxq) { 2852 lpfc_printf_vlog(vport, KERN_ERR, 2853 LOG_MBOX, "2607 Failed to allocate " 2854 "init_vpi mailbox\n"); 2855 return; 2856 } 2857 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2858 mboxq->vport = vport; 2859 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2860 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2861 if (rc == MBX_NOT_FINISHED) { 2862 lpfc_printf_vlog(vport, KERN_ERR, 2863 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2864 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2865 } 2866 } 2867 2868 /** 2869 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2870 * @phba: pointer to lpfc hba data structure. 2871 * 2872 * This function loops through the list of vports on the @phba and issues an 2873 * FDISC if possible. 2874 */ 2875 void 2876 lpfc_start_fdiscs(struct lpfc_hba *phba) 2877 { 2878 struct lpfc_vport **vports; 2879 int i; 2880 2881 vports = lpfc_create_vport_work_array(phba); 2882 if (vports != NULL) { 2883 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2884 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2885 continue; 2886 /* There are no vpi for this vport */ 2887 if (vports[i]->vpi > phba->max_vpi) { 2888 lpfc_vport_set_state(vports[i], 2889 FC_VPORT_FAILED); 2890 continue; 2891 } 2892 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2893 lpfc_vport_set_state(vports[i], 2894 FC_VPORT_LINKDOWN); 2895 continue; 2896 } 2897 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2898 lpfc_issue_init_vpi(vports[i]); 2899 continue; 2900 } 2901 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2902 lpfc_initial_fdisc(vports[i]); 2903 else { 2904 lpfc_vport_set_state(vports[i], 2905 FC_VPORT_NO_FABRIC_SUPP); 2906 lpfc_printf_vlog(vports[i], KERN_ERR, 2907 LOG_ELS, 2908 "0259 No NPIV " 2909 "Fabric support\n"); 2910 } 2911 } 2912 } 2913 lpfc_destroy_vport_work_array(phba, vports); 2914 } 2915 2916 void 2917 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2918 { 2919 struct lpfc_dmabuf *dmabuf = mboxq->context1; 2920 struct lpfc_vport *vport = mboxq->vport; 2921 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2922 2923 /* 2924 * VFI not supported for interface type 0, so ignore any mailbox 2925 * error (except VFI in use) and continue with the discovery. 2926 */ 2927 if (mboxq->u.mb.mbxStatus && 2928 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2929 LPFC_SLI_INTF_IF_TYPE_0) && 2930 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2931 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2932 "2018 REG_VFI mbxStatus error x%x " 2933 "HBA state x%x\n", 2934 mboxq->u.mb.mbxStatus, vport->port_state); 2935 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2936 /* FLOGI failed, use loop map to make discovery list */ 2937 lpfc_disc_list_loopmap(vport); 2938 /* Start discovery */ 2939 lpfc_disc_start(vport); 2940 goto out_free_mem; 2941 } 2942 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2943 goto out_free_mem; 2944 } 2945 2946 /* If the VFI is already registered, there is nothing else to do 2947 * Unless this was a VFI update and we are in PT2PT mode, then 2948 * we should drop through to set the port state to ready. 2949 */ 2950 if (vport->fc_flag & FC_VFI_REGISTERED) 2951 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2952 vport->fc_flag & FC_PT2PT)) 2953 goto out_free_mem; 2954 2955 /* The VPI is implicitly registered when the VFI is registered */ 2956 spin_lock_irq(shost->host_lock); 2957 vport->vpi_state |= LPFC_VPI_REGISTERED; 2958 vport->fc_flag |= FC_VFI_REGISTERED; 2959 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 2960 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2961 spin_unlock_irq(shost->host_lock); 2962 2963 /* In case SLI4 FC loopback test, we are ready */ 2964 if ((phba->sli_rev == LPFC_SLI_REV4) && 2965 (phba->link_flag & LS_LOOPBACK_MODE)) { 2966 phba->link_state = LPFC_HBA_READY; 2967 goto out_free_mem; 2968 } 2969 2970 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 2971 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 2972 "alpacnt:%d LinkState:%x topology:%x\n", 2973 vport->port_state, vport->fc_flag, vport->fc_myDID, 2974 vport->phba->alpa_map[0], 2975 phba->link_state, phba->fc_topology); 2976 2977 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 2978 /* 2979 * For private loop or for NPort pt2pt, 2980 * just start discovery and we are done. 2981 */ 2982 if ((vport->fc_flag & FC_PT2PT) || 2983 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 2984 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 2985 2986 /* Use loop map to make discovery list */ 2987 lpfc_disc_list_loopmap(vport); 2988 /* Start discovery */ 2989 if (vport->fc_flag & FC_PT2PT) 2990 vport->port_state = LPFC_VPORT_READY; 2991 else 2992 lpfc_disc_start(vport); 2993 } else { 2994 lpfc_start_fdiscs(phba); 2995 lpfc_do_scr_ns_plogi(phba, vport); 2996 } 2997 } 2998 2999 out_free_mem: 3000 mempool_free(mboxq, phba->mbox_mem_pool); 3001 if (dmabuf) { 3002 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3003 kfree(dmabuf); 3004 } 3005 return; 3006 } 3007 3008 static void 3009 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3010 { 3011 MAILBOX_t *mb = &pmb->u.mb; 3012 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; 3013 struct lpfc_vport *vport = pmb->vport; 3014 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3015 struct serv_parm *sp = &vport->fc_sparam; 3016 uint32_t ed_tov; 3017 3018 /* Check for error */ 3019 if (mb->mbxStatus) { 3020 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3021 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3022 "0319 READ_SPARAM mbxStatus error x%x " 3023 "hba state x%x>\n", 3024 mb->mbxStatus, vport->port_state); 3025 lpfc_linkdown(phba); 3026 goto out; 3027 } 3028 3029 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3030 sizeof (struct serv_parm)); 3031 3032 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3033 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3034 ed_tov = (ed_tov + 999999) / 1000000; 3035 3036 phba->fc_edtov = ed_tov; 3037 phba->fc_ratov = (2 * ed_tov) / 1000; 3038 if (phba->fc_ratov < FF_DEF_RATOV) { 3039 /* RA_TOV should be atleast 10sec for initial flogi */ 3040 phba->fc_ratov = FF_DEF_RATOV; 3041 } 3042 3043 lpfc_update_vport_wwn(vport); 3044 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3045 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3046 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3047 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3048 } 3049 3050 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3051 kfree(mp); 3052 mempool_free(pmb, phba->mbox_mem_pool); 3053 return; 3054 3055 out: 3056 pmb->context1 = NULL; 3057 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3058 kfree(mp); 3059 lpfc_issue_clear_la(phba, vport); 3060 mempool_free(pmb, phba->mbox_mem_pool); 3061 return; 3062 } 3063 3064 static void 3065 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3066 { 3067 struct lpfc_vport *vport = phba->pport; 3068 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3069 struct Scsi_Host *shost; 3070 int i; 3071 struct lpfc_dmabuf *mp; 3072 int rc; 3073 struct fcf_record *fcf_record; 3074 uint32_t fc_flags = 0; 3075 3076 spin_lock_irq(&phba->hbalock); 3077 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3078 3079 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3080 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3081 case LPFC_LINK_SPEED_1GHZ: 3082 case LPFC_LINK_SPEED_2GHZ: 3083 case LPFC_LINK_SPEED_4GHZ: 3084 case LPFC_LINK_SPEED_8GHZ: 3085 case LPFC_LINK_SPEED_10GHZ: 3086 case LPFC_LINK_SPEED_16GHZ: 3087 case LPFC_LINK_SPEED_32GHZ: 3088 break; 3089 default: 3090 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3091 break; 3092 } 3093 } 3094 3095 if (phba->fc_topology && 3096 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3097 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3098 "3314 Toplogy changed was 0x%x is 0x%x\n", 3099 phba->fc_topology, 3100 bf_get(lpfc_mbx_read_top_topology, la)); 3101 phba->fc_topology_changed = 1; 3102 } 3103 3104 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3105 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3106 3107 shost = lpfc_shost_from_vport(vport); 3108 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3109 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3110 3111 /* if npiv is enabled and this adapter supports npiv log 3112 * a message that npiv is not supported in this topology 3113 */ 3114 if (phba->cfg_enable_npiv && phba->max_vpi) 3115 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3116 "1309 Link Up Event npiv not supported in loop " 3117 "topology\n"); 3118 /* Get Loop Map information */ 3119 if (bf_get(lpfc_mbx_read_top_il, la)) 3120 fc_flags |= FC_LBIT; 3121 3122 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3123 i = la->lilpBde64.tus.f.bdeSize; 3124 3125 if (i == 0) { 3126 phba->alpa_map[0] = 0; 3127 } else { 3128 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3129 int numalpa, j, k; 3130 union { 3131 uint8_t pamap[16]; 3132 struct { 3133 uint32_t wd1; 3134 uint32_t wd2; 3135 uint32_t wd3; 3136 uint32_t wd4; 3137 } pa; 3138 } un; 3139 numalpa = phba->alpa_map[0]; 3140 j = 0; 3141 while (j < numalpa) { 3142 memset(un.pamap, 0, 16); 3143 for (k = 1; j < numalpa; k++) { 3144 un.pamap[k - 1] = 3145 phba->alpa_map[j + 1]; 3146 j++; 3147 if (k == 16) 3148 break; 3149 } 3150 /* Link Up Event ALPA map */ 3151 lpfc_printf_log(phba, 3152 KERN_WARNING, 3153 LOG_LINK_EVENT, 3154 "1304 Link Up Event " 3155 "ALPA map Data: x%x " 3156 "x%x x%x x%x\n", 3157 un.pa.wd1, un.pa.wd2, 3158 un.pa.wd3, un.pa.wd4); 3159 } 3160 } 3161 } 3162 } else { 3163 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3164 if (phba->max_vpi && phba->cfg_enable_npiv && 3165 (phba->sli_rev >= LPFC_SLI_REV3)) 3166 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3167 } 3168 vport->fc_myDID = phba->fc_pref_DID; 3169 fc_flags |= FC_LBIT; 3170 } 3171 spin_unlock_irq(&phba->hbalock); 3172 3173 if (fc_flags) { 3174 spin_lock_irq(shost->host_lock); 3175 vport->fc_flag |= fc_flags; 3176 spin_unlock_irq(shost->host_lock); 3177 } 3178 3179 lpfc_linkup(phba); 3180 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3181 if (!sparam_mbox) 3182 goto out; 3183 3184 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3185 if (rc) { 3186 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3187 goto out; 3188 } 3189 sparam_mbox->vport = vport; 3190 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3191 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3192 if (rc == MBX_NOT_FINISHED) { 3193 mp = (struct lpfc_dmabuf *) sparam_mbox->context1; 3194 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3195 kfree(mp); 3196 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3197 goto out; 3198 } 3199 3200 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3201 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3202 if (!cfglink_mbox) 3203 goto out; 3204 vport->port_state = LPFC_LOCAL_CFG_LINK; 3205 lpfc_config_link(phba, cfglink_mbox); 3206 cfglink_mbox->vport = vport; 3207 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3208 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3209 if (rc == MBX_NOT_FINISHED) { 3210 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3211 goto out; 3212 } 3213 } else { 3214 vport->port_state = LPFC_VPORT_UNKNOWN; 3215 /* 3216 * Add the driver's default FCF record at FCF index 0 now. This 3217 * is phase 1 implementation that support FCF index 0 and driver 3218 * defaults. 3219 */ 3220 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3221 fcf_record = kzalloc(sizeof(struct fcf_record), 3222 GFP_KERNEL); 3223 if (unlikely(!fcf_record)) { 3224 lpfc_printf_log(phba, KERN_ERR, 3225 LOG_MBOX | LOG_SLI, 3226 "2554 Could not allocate memory for " 3227 "fcf record\n"); 3228 rc = -ENODEV; 3229 goto out; 3230 } 3231 3232 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3233 LPFC_FCOE_FCF_DEF_INDEX); 3234 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3235 if (unlikely(rc)) { 3236 lpfc_printf_log(phba, KERN_ERR, 3237 LOG_MBOX | LOG_SLI, 3238 "2013 Could not manually add FCF " 3239 "record 0, status %d\n", rc); 3240 rc = -ENODEV; 3241 kfree(fcf_record); 3242 goto out; 3243 } 3244 kfree(fcf_record); 3245 } 3246 /* 3247 * The driver is expected to do FIP/FCF. Call the port 3248 * and get the FCF Table. 3249 */ 3250 spin_lock_irq(&phba->hbalock); 3251 if (phba->hba_flag & FCF_TS_INPROG) { 3252 spin_unlock_irq(&phba->hbalock); 3253 return; 3254 } 3255 /* This is the initial FCF discovery scan */ 3256 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3257 spin_unlock_irq(&phba->hbalock); 3258 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3259 "2778 Start FCF table scan at linkup\n"); 3260 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3261 LPFC_FCOE_FCF_GET_FIRST); 3262 if (rc) { 3263 spin_lock_irq(&phba->hbalock); 3264 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3265 spin_unlock_irq(&phba->hbalock); 3266 goto out; 3267 } 3268 /* Reset FCF roundrobin bmask for new discovery */ 3269 lpfc_sli4_clear_fcf_rr_bmask(phba); 3270 } 3271 3272 return; 3273 out: 3274 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3275 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3276 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3277 vport->port_state, sparam_mbox, cfglink_mbox); 3278 lpfc_issue_clear_la(phba, vport); 3279 return; 3280 } 3281 3282 static void 3283 lpfc_enable_la(struct lpfc_hba *phba) 3284 { 3285 uint32_t control; 3286 struct lpfc_sli *psli = &phba->sli; 3287 spin_lock_irq(&phba->hbalock); 3288 psli->sli_flag |= LPFC_PROCESS_LA; 3289 if (phba->sli_rev <= LPFC_SLI_REV3) { 3290 control = readl(phba->HCregaddr); 3291 control |= HC_LAINT_ENA; 3292 writel(control, phba->HCregaddr); 3293 readl(phba->HCregaddr); /* flush */ 3294 } 3295 spin_unlock_irq(&phba->hbalock); 3296 } 3297 3298 static void 3299 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3300 { 3301 lpfc_linkdown(phba); 3302 lpfc_enable_la(phba); 3303 lpfc_unregister_unused_fcf(phba); 3304 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3305 } 3306 3307 3308 /* 3309 * This routine handles processing a READ_TOPOLOGY mailbox 3310 * command upon completion. It is setup in the LPFC_MBOXQ 3311 * as the completion routine when the command is 3312 * handed off to the SLI layer. SLI4 only. 3313 */ 3314 void 3315 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3316 { 3317 struct lpfc_vport *vport = pmb->vport; 3318 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3319 struct lpfc_mbx_read_top *la; 3320 struct lpfc_sli_ring *pring; 3321 MAILBOX_t *mb = &pmb->u.mb; 3322 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3323 uint8_t attn_type; 3324 3325 /* Unblock ELS traffic */ 3326 pring = lpfc_phba_elsring(phba); 3327 if (pring) 3328 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3329 3330 /* Check for error */ 3331 if (mb->mbxStatus) { 3332 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3333 "1307 READ_LA mbox error x%x state x%x\n", 3334 mb->mbxStatus, vport->port_state); 3335 lpfc_mbx_issue_link_down(phba); 3336 phba->link_state = LPFC_HBA_ERROR; 3337 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3338 } 3339 3340 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3341 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3342 3343 memcpy(&phba->alpa_map[0], mp->virt, 128); 3344 3345 spin_lock_irq(shost->host_lock); 3346 if (bf_get(lpfc_mbx_read_top_pb, la)) 3347 vport->fc_flag |= FC_BYPASSED_MODE; 3348 else 3349 vport->fc_flag &= ~FC_BYPASSED_MODE; 3350 spin_unlock_irq(shost->host_lock); 3351 3352 if (phba->fc_eventTag <= la->eventTag) { 3353 phba->fc_stat.LinkMultiEvent++; 3354 if (attn_type == LPFC_ATT_LINK_UP) 3355 if (phba->fc_eventTag != 0) 3356 lpfc_linkdown(phba); 3357 } 3358 3359 phba->fc_eventTag = la->eventTag; 3360 if (phba->sli_rev < LPFC_SLI_REV4) { 3361 spin_lock_irq(&phba->hbalock); 3362 if (bf_get(lpfc_mbx_read_top_mm, la)) 3363 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3364 else 3365 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3366 spin_unlock_irq(&phba->hbalock); 3367 } 3368 3369 phba->link_events++; 3370 if ((attn_type == LPFC_ATT_LINK_UP) && 3371 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3372 phba->fc_stat.LinkUp++; 3373 if (phba->link_flag & LS_LOOPBACK_MODE) { 3374 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3375 "1306 Link Up Event in loop back mode " 3376 "x%x received Data: x%x x%x x%x x%x\n", 3377 la->eventTag, phba->fc_eventTag, 3378 bf_get(lpfc_mbx_read_top_alpa_granted, 3379 la), 3380 bf_get(lpfc_mbx_read_top_link_spd, la), 3381 phba->alpa_map[0]); 3382 } else { 3383 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3384 "1303 Link Up Event x%x received " 3385 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3386 la->eventTag, phba->fc_eventTag, 3387 bf_get(lpfc_mbx_read_top_alpa_granted, 3388 la), 3389 bf_get(lpfc_mbx_read_top_link_spd, la), 3390 phba->alpa_map[0], 3391 bf_get(lpfc_mbx_read_top_mm, la), 3392 bf_get(lpfc_mbx_read_top_fa, la), 3393 phba->wait_4_mlo_maint_flg); 3394 } 3395 lpfc_mbx_process_link_up(phba, la); 3396 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3397 attn_type == LPFC_ATT_UNEXP_WWPN) { 3398 phba->fc_stat.LinkDown++; 3399 if (phba->link_flag & LS_LOOPBACK_MODE) 3400 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3401 "1308 Link Down Event in loop back mode " 3402 "x%x received " 3403 "Data: x%x x%x x%x\n", 3404 la->eventTag, phba->fc_eventTag, 3405 phba->pport->port_state, vport->fc_flag); 3406 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3407 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3408 "1313 Link Down UNEXP WWPN Event x%x received " 3409 "Data: x%x x%x x%x x%x x%x\n", 3410 la->eventTag, phba->fc_eventTag, 3411 phba->pport->port_state, vport->fc_flag, 3412 bf_get(lpfc_mbx_read_top_mm, la), 3413 bf_get(lpfc_mbx_read_top_fa, la)); 3414 else 3415 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3416 "1305 Link Down Event x%x received " 3417 "Data: x%x x%x x%x x%x x%x\n", 3418 la->eventTag, phba->fc_eventTag, 3419 phba->pport->port_state, vport->fc_flag, 3420 bf_get(lpfc_mbx_read_top_mm, la), 3421 bf_get(lpfc_mbx_read_top_fa, la)); 3422 lpfc_mbx_issue_link_down(phba); 3423 } 3424 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3425 attn_type == LPFC_ATT_LINK_UP) { 3426 if (phba->link_state != LPFC_LINK_DOWN) { 3427 phba->fc_stat.LinkDown++; 3428 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3429 "1312 Link Down Event x%x received " 3430 "Data: x%x x%x x%x\n", 3431 la->eventTag, phba->fc_eventTag, 3432 phba->pport->port_state, vport->fc_flag); 3433 lpfc_mbx_issue_link_down(phba); 3434 } else 3435 lpfc_enable_la(phba); 3436 3437 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3438 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3439 "Data: x%x x%x x%x\n", 3440 la->eventTag, phba->fc_eventTag, 3441 phba->pport->port_state, vport->fc_flag); 3442 /* 3443 * The cmnd that triggered this will be waiting for this 3444 * signal. 3445 */ 3446 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3447 if (phba->wait_4_mlo_maint_flg) { 3448 phba->wait_4_mlo_maint_flg = 0; 3449 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3450 } 3451 } 3452 3453 if ((phba->sli_rev < LPFC_SLI_REV4) && 3454 bf_get(lpfc_mbx_read_top_fa, la)) { 3455 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3456 lpfc_issue_clear_la(phba, vport); 3457 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3458 "1311 fa %d\n", 3459 bf_get(lpfc_mbx_read_top_fa, la)); 3460 } 3461 3462 lpfc_mbx_cmpl_read_topology_free_mbuf: 3463 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3464 kfree(mp); 3465 mempool_free(pmb, phba->mbox_mem_pool); 3466 return; 3467 } 3468 3469 /* 3470 * This routine handles processing a REG_LOGIN mailbox 3471 * command upon completion. It is setup in the LPFC_MBOXQ 3472 * as the completion routine when the command is 3473 * handed off to the SLI layer. 3474 */ 3475 void 3476 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3477 { 3478 struct lpfc_vport *vport = pmb->vport; 3479 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3480 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3481 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3482 3483 pmb->context1 = NULL; 3484 pmb->context2 = NULL; 3485 3486 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3487 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3488 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3489 kref_read(&ndlp->kref), 3490 ndlp->nlp_usg_map, ndlp); 3491 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3492 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3493 3494 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3495 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3496 /* We rcvd a rscn after issuing this 3497 * mbox reg login, we may have cycled 3498 * back through the state and be 3499 * back at reg login state so this 3500 * mbox needs to be ignored becase 3501 * there is another reg login in 3502 * process. 3503 */ 3504 spin_lock_irq(shost->host_lock); 3505 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3506 spin_unlock_irq(shost->host_lock); 3507 3508 /* 3509 * We cannot leave the RPI registered because 3510 * if we go thru discovery again for this ndlp 3511 * a subsequent REG_RPI will fail. 3512 */ 3513 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3514 lpfc_unreg_rpi(vport, ndlp); 3515 } 3516 3517 /* Call state machine */ 3518 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3519 3520 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3521 kfree(mp); 3522 mempool_free(pmb, phba->mbox_mem_pool); 3523 /* decrement the node reference count held for this callback 3524 * function. 3525 */ 3526 lpfc_nlp_put(ndlp); 3527 3528 return; 3529 } 3530 3531 static void 3532 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3533 { 3534 MAILBOX_t *mb = &pmb->u.mb; 3535 struct lpfc_vport *vport = pmb->vport; 3536 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3537 3538 switch (mb->mbxStatus) { 3539 case 0x0011: 3540 case 0x0020: 3541 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3542 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3543 mb->mbxStatus); 3544 break; 3545 /* If VPI is busy, reset the HBA */ 3546 case 0x9700: 3547 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3548 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3549 vport->vpi, mb->mbxStatus); 3550 if (!(phba->pport->load_flag & FC_UNLOADING)) 3551 lpfc_workq_post_event(phba, NULL, NULL, 3552 LPFC_EVT_RESET_HBA); 3553 } 3554 spin_lock_irq(shost->host_lock); 3555 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3556 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3557 spin_unlock_irq(shost->host_lock); 3558 vport->unreg_vpi_cmpl = VPORT_OK; 3559 mempool_free(pmb, phba->mbox_mem_pool); 3560 lpfc_cleanup_vports_rrqs(vport, NULL); 3561 /* 3562 * This shost reference might have been taken at the beginning of 3563 * lpfc_vport_delete() 3564 */ 3565 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3566 scsi_host_put(shost); 3567 } 3568 3569 int 3570 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3571 { 3572 struct lpfc_hba *phba = vport->phba; 3573 LPFC_MBOXQ_t *mbox; 3574 int rc; 3575 3576 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3577 if (!mbox) 3578 return 1; 3579 3580 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3581 mbox->vport = vport; 3582 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3583 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3584 if (rc == MBX_NOT_FINISHED) { 3585 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3586 "1800 Could not issue unreg_vpi\n"); 3587 mempool_free(mbox, phba->mbox_mem_pool); 3588 vport->unreg_vpi_cmpl = VPORT_ERROR; 3589 return rc; 3590 } 3591 return 0; 3592 } 3593 3594 static void 3595 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3596 { 3597 struct lpfc_vport *vport = pmb->vport; 3598 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3599 MAILBOX_t *mb = &pmb->u.mb; 3600 3601 switch (mb->mbxStatus) { 3602 case 0x0011: 3603 case 0x9601: 3604 case 0x9602: 3605 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3606 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3607 mb->mbxStatus); 3608 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3609 spin_lock_irq(shost->host_lock); 3610 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3611 spin_unlock_irq(shost->host_lock); 3612 vport->fc_myDID = 0; 3613 3614 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3615 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3616 if (phba->nvmet_support) 3617 lpfc_nvmet_update_targetport(phba); 3618 else 3619 lpfc_nvme_update_localport(vport); 3620 } 3621 goto out; 3622 } 3623 3624 spin_lock_irq(shost->host_lock); 3625 vport->vpi_state |= LPFC_VPI_REGISTERED; 3626 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3627 spin_unlock_irq(shost->host_lock); 3628 vport->num_disc_nodes = 0; 3629 /* go thru NPR list and issue ELS PLOGIs */ 3630 if (vport->fc_npr_cnt) 3631 lpfc_els_disc_plogi(vport); 3632 3633 if (!vport->num_disc_nodes) { 3634 spin_lock_irq(shost->host_lock); 3635 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3636 spin_unlock_irq(shost->host_lock); 3637 lpfc_can_disctmo(vport); 3638 } 3639 vport->port_state = LPFC_VPORT_READY; 3640 3641 out: 3642 mempool_free(pmb, phba->mbox_mem_pool); 3643 return; 3644 } 3645 3646 /** 3647 * lpfc_create_static_vport - Read HBA config region to create static vports. 3648 * @phba: pointer to lpfc hba data structure. 3649 * 3650 * This routine issue a DUMP mailbox command for config region 22 to get 3651 * the list of static vports to be created. The function create vports 3652 * based on the information returned from the HBA. 3653 **/ 3654 void 3655 lpfc_create_static_vport(struct lpfc_hba *phba) 3656 { 3657 LPFC_MBOXQ_t *pmb = NULL; 3658 MAILBOX_t *mb; 3659 struct static_vport_info *vport_info; 3660 int mbx_wait_rc = 0, i; 3661 struct fc_vport_identifiers vport_id; 3662 struct fc_vport *new_fc_vport; 3663 struct Scsi_Host *shost; 3664 struct lpfc_vport *vport; 3665 uint16_t offset = 0; 3666 uint8_t *vport_buff; 3667 struct lpfc_dmabuf *mp; 3668 uint32_t byte_count = 0; 3669 3670 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3671 if (!pmb) { 3672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3673 "0542 lpfc_create_static_vport failed to" 3674 " allocate mailbox memory\n"); 3675 return; 3676 } 3677 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3678 mb = &pmb->u.mb; 3679 3680 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3681 if (!vport_info) { 3682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3683 "0543 lpfc_create_static_vport failed to" 3684 " allocate vport_info\n"); 3685 mempool_free(pmb, phba->mbox_mem_pool); 3686 return; 3687 } 3688 3689 vport_buff = (uint8_t *) vport_info; 3690 do { 3691 /* free dma buffer from previous round */ 3692 if (pmb->context1) { 3693 mp = (struct lpfc_dmabuf *)pmb->context1; 3694 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3695 kfree(mp); 3696 } 3697 if (lpfc_dump_static_vport(phba, pmb, offset)) 3698 goto out; 3699 3700 pmb->vport = phba->pport; 3701 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3702 LPFC_MBOX_TMO); 3703 3704 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3705 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3706 "0544 lpfc_create_static_vport failed to" 3707 " issue dump mailbox command ret 0x%x " 3708 "status 0x%x\n", 3709 mbx_wait_rc, mb->mbxStatus); 3710 goto out; 3711 } 3712 3713 if (phba->sli_rev == LPFC_SLI_REV4) { 3714 byte_count = pmb->u.mqe.un.mb_words[5]; 3715 mp = (struct lpfc_dmabuf *)pmb->context1; 3716 if (byte_count > sizeof(struct static_vport_info) - 3717 offset) 3718 byte_count = sizeof(struct static_vport_info) 3719 - offset; 3720 memcpy(vport_buff + offset, mp->virt, byte_count); 3721 offset += byte_count; 3722 } else { 3723 if (mb->un.varDmp.word_cnt > 3724 sizeof(struct static_vport_info) - offset) 3725 mb->un.varDmp.word_cnt = 3726 sizeof(struct static_vport_info) 3727 - offset; 3728 byte_count = mb->un.varDmp.word_cnt; 3729 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3730 vport_buff + offset, 3731 byte_count); 3732 3733 offset += byte_count; 3734 } 3735 3736 } while (byte_count && 3737 offset < sizeof(struct static_vport_info)); 3738 3739 3740 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3741 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3742 != VPORT_INFO_REV)) { 3743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3744 "0545 lpfc_create_static_vport bad" 3745 " information header 0x%x 0x%x\n", 3746 le32_to_cpu(vport_info->signature), 3747 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3748 3749 goto out; 3750 } 3751 3752 shost = lpfc_shost_from_vport(phba->pport); 3753 3754 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3755 memset(&vport_id, 0, sizeof(vport_id)); 3756 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3757 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3758 if (!vport_id.port_name || !vport_id.node_name) 3759 continue; 3760 3761 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3762 vport_id.vport_type = FC_PORTTYPE_NPIV; 3763 vport_id.disable = false; 3764 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3765 3766 if (!new_fc_vport) { 3767 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3768 "0546 lpfc_create_static_vport failed to" 3769 " create vport\n"); 3770 continue; 3771 } 3772 3773 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3774 vport->vport_flag |= STATIC_VPORT; 3775 } 3776 3777 out: 3778 kfree(vport_info); 3779 if (mbx_wait_rc != MBX_TIMEOUT) { 3780 if (pmb->context1) { 3781 mp = (struct lpfc_dmabuf *)pmb->context1; 3782 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3783 kfree(mp); 3784 } 3785 mempool_free(pmb, phba->mbox_mem_pool); 3786 } 3787 3788 return; 3789 } 3790 3791 /* 3792 * This routine handles processing a Fabric REG_LOGIN mailbox 3793 * command upon completion. It is setup in the LPFC_MBOXQ 3794 * as the completion routine when the command is 3795 * handed off to the SLI layer. 3796 */ 3797 void 3798 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3799 { 3800 struct lpfc_vport *vport = pmb->vport; 3801 MAILBOX_t *mb = &pmb->u.mb; 3802 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3803 struct lpfc_nodelist *ndlp; 3804 struct Scsi_Host *shost; 3805 3806 ndlp = (struct lpfc_nodelist *) pmb->context2; 3807 pmb->context1 = NULL; 3808 pmb->context2 = NULL; 3809 3810 if (mb->mbxStatus) { 3811 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3812 "0258 Register Fabric login error: 0x%x\n", 3813 mb->mbxStatus); 3814 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3815 kfree(mp); 3816 mempool_free(pmb, phba->mbox_mem_pool); 3817 3818 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3819 /* FLOGI failed, use loop map to make discovery list */ 3820 lpfc_disc_list_loopmap(vport); 3821 3822 /* Start discovery */ 3823 lpfc_disc_start(vport); 3824 /* Decrement the reference count to ndlp after the 3825 * reference to the ndlp are done. 3826 */ 3827 lpfc_nlp_put(ndlp); 3828 return; 3829 } 3830 3831 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3832 /* Decrement the reference count to ndlp after the reference 3833 * to the ndlp are done. 3834 */ 3835 lpfc_nlp_put(ndlp); 3836 return; 3837 } 3838 3839 if (phba->sli_rev < LPFC_SLI_REV4) 3840 ndlp->nlp_rpi = mb->un.varWords[0]; 3841 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3842 ndlp->nlp_type |= NLP_FABRIC; 3843 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3844 3845 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3846 /* when physical port receive logo donot start 3847 * vport discovery */ 3848 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3849 lpfc_start_fdiscs(phba); 3850 else { 3851 shost = lpfc_shost_from_vport(vport); 3852 spin_lock_irq(shost->host_lock); 3853 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3854 spin_unlock_irq(shost->host_lock); 3855 } 3856 lpfc_do_scr_ns_plogi(phba, vport); 3857 } 3858 3859 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3860 kfree(mp); 3861 mempool_free(pmb, phba->mbox_mem_pool); 3862 3863 /* Drop the reference count from the mbox at the end after 3864 * all the current reference to the ndlp have been done. 3865 */ 3866 lpfc_nlp_put(ndlp); 3867 return; 3868 } 3869 3870 /* 3871 * This routine will issue a GID_FT for each FC4 Type supported 3872 * by the driver. ALL GID_FTs must complete before discovery is started. 3873 */ 3874 int 3875 lpfc_issue_gidft(struct lpfc_vport *vport) 3876 { 3877 struct lpfc_hba *phba = vport->phba; 3878 3879 /* Good status, issue CT Request to NameServer */ 3880 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3881 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3882 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3883 /* Cannot issue NameServer FCP Query, so finish up 3884 * discovery 3885 */ 3886 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3887 "0604 %s FC TYPE %x %s\n", 3888 "Failed to issue GID_FT to ", 3889 FC_TYPE_FCP, 3890 "Finishing discovery."); 3891 return 0; 3892 } 3893 vport->gidft_inp++; 3894 } 3895 3896 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3897 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3898 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3899 /* Cannot issue NameServer NVME Query, so finish up 3900 * discovery 3901 */ 3902 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3903 "0605 %s FC_TYPE %x %s %d\n", 3904 "Failed to issue GID_FT to ", 3905 FC_TYPE_NVME, 3906 "Finishing discovery: gidftinp ", 3907 vport->gidft_inp); 3908 if (vport->gidft_inp == 0) 3909 return 0; 3910 } else 3911 vport->gidft_inp++; 3912 } 3913 return vport->gidft_inp; 3914 } 3915 3916 /* 3917 * This routine handles processing a NameServer REG_LOGIN mailbox 3918 * command upon completion. It is setup in the LPFC_MBOXQ 3919 * as the completion routine when the command is 3920 * handed off to the SLI layer. 3921 */ 3922 void 3923 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3924 { 3925 MAILBOX_t *mb = &pmb->u.mb; 3926 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 3927 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 3928 struct lpfc_vport *vport = pmb->vport; 3929 3930 pmb->context1 = NULL; 3931 pmb->context2 = NULL; 3932 vport->gidft_inp = 0; 3933 3934 if (mb->mbxStatus) { 3935 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 3936 "0260 Register NameServer error: 0x%x\n", 3937 mb->mbxStatus); 3938 3939 out: 3940 /* decrement the node reference count held for this 3941 * callback function. 3942 */ 3943 lpfc_nlp_put(ndlp); 3944 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3945 kfree(mp); 3946 mempool_free(pmb, phba->mbox_mem_pool); 3947 3948 /* If no other thread is using the ndlp, free it */ 3949 lpfc_nlp_not_used(ndlp); 3950 3951 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3952 /* 3953 * RegLogin failed, use loop map to make discovery 3954 * list 3955 */ 3956 lpfc_disc_list_loopmap(vport); 3957 3958 /* Start discovery */ 3959 lpfc_disc_start(vport); 3960 return; 3961 } 3962 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3963 return; 3964 } 3965 3966 if (phba->sli_rev < LPFC_SLI_REV4) 3967 ndlp->nlp_rpi = mb->un.varWords[0]; 3968 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3969 ndlp->nlp_type |= NLP_FABRIC; 3970 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3971 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3972 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 3973 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3974 kref_read(&ndlp->kref), 3975 ndlp->nlp_usg_map, ndlp); 3976 3977 if (vport->port_state < LPFC_VPORT_READY) { 3978 /* Link up discovery requires Fabric registration. */ 3979 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 3980 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 3981 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 3982 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 3983 3984 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3985 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 3986 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 3987 3988 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3989 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 3990 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 3991 FC_TYPE_NVME); 3992 3993 /* Issue SCR just before NameServer GID_FT Query */ 3994 lpfc_issue_els_scr(vport, SCR_DID, 0); 3995 } 3996 3997 vport->fc_ns_retry = 0; 3998 if (lpfc_issue_gidft(vport) == 0) 3999 goto out; 4000 4001 /* 4002 * At this point in time we may need to wait for multiple 4003 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4004 * 4005 * decrement the node reference count held for this 4006 * callback function. 4007 */ 4008 lpfc_nlp_put(ndlp); 4009 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4010 kfree(mp); 4011 mempool_free(pmb, phba->mbox_mem_pool); 4012 4013 return; 4014 } 4015 4016 static void 4017 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4018 { 4019 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4020 struct fc_rport *rport; 4021 struct lpfc_rport_data *rdata; 4022 struct fc_rport_identifiers rport_ids; 4023 struct lpfc_hba *phba = vport->phba; 4024 4025 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4026 return; 4027 4028 /* Remote port has reappeared. Re-register w/ FC transport */ 4029 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4030 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4031 rport_ids.port_id = ndlp->nlp_DID; 4032 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4033 4034 /* 4035 * We leave our node pointer in rport->dd_data when we unregister a 4036 * FCP target port. But fc_remote_port_add zeros the space to which 4037 * rport->dd_data points. So, if we're reusing a previously 4038 * registered port, drop the reference that we took the last time we 4039 * registered the port. 4040 */ 4041 rport = ndlp->rport; 4042 if (rport) { 4043 rdata = rport->dd_data; 4044 /* break the link before dropping the ref */ 4045 ndlp->rport = NULL; 4046 if (rdata) { 4047 if (rdata->pnode == ndlp) 4048 lpfc_nlp_put(ndlp); 4049 rdata->pnode = NULL; 4050 } 4051 /* drop reference for earlier registeration */ 4052 put_device(&rport->dev); 4053 } 4054 4055 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4056 "rport add: did:x%x flg:x%x type x%x", 4057 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4058 4059 /* Don't add the remote port if unloading. */ 4060 if (vport->load_flag & FC_UNLOADING) 4061 return; 4062 4063 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4064 if (!rport || !get_device(&rport->dev)) { 4065 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4066 "Warning: fc_remote_port_add failed\n"); 4067 return; 4068 } 4069 4070 /* initialize static port data */ 4071 rport->maxframe_size = ndlp->nlp_maxframe; 4072 rport->supported_classes = ndlp->nlp_class_sup; 4073 rdata = rport->dd_data; 4074 rdata->pnode = lpfc_nlp_get(ndlp); 4075 4076 if (ndlp->nlp_type & NLP_FCP_TARGET) 4077 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4078 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4079 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4080 4081 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4082 fc_remote_port_rolechg(rport, rport_ids.roles); 4083 4084 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4085 "3183 rport register x%06x, rport %p role x%x\n", 4086 ndlp->nlp_DID, rport, rport_ids.roles); 4087 4088 if ((rport->scsi_target_id != -1) && 4089 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4090 ndlp->nlp_sid = rport->scsi_target_id; 4091 } 4092 return; 4093 } 4094 4095 static void 4096 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4097 { 4098 struct fc_rport *rport = ndlp->rport; 4099 struct lpfc_vport *vport = ndlp->vport; 4100 struct lpfc_hba *phba = vport->phba; 4101 4102 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4103 return; 4104 4105 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4106 "rport delete: did:x%x flg:x%x type x%x", 4107 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4108 4109 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4110 "3184 rport unregister x%06x, rport %p\n", 4111 ndlp->nlp_DID, rport); 4112 4113 fc_remote_port_delete(rport); 4114 4115 return; 4116 } 4117 4118 static void 4119 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4120 { 4121 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4122 4123 spin_lock_irq(shost->host_lock); 4124 switch (state) { 4125 case NLP_STE_UNUSED_NODE: 4126 vport->fc_unused_cnt += count; 4127 break; 4128 case NLP_STE_PLOGI_ISSUE: 4129 vport->fc_plogi_cnt += count; 4130 break; 4131 case NLP_STE_ADISC_ISSUE: 4132 vport->fc_adisc_cnt += count; 4133 break; 4134 case NLP_STE_REG_LOGIN_ISSUE: 4135 vport->fc_reglogin_cnt += count; 4136 break; 4137 case NLP_STE_PRLI_ISSUE: 4138 vport->fc_prli_cnt += count; 4139 break; 4140 case NLP_STE_UNMAPPED_NODE: 4141 vport->fc_unmap_cnt += count; 4142 break; 4143 case NLP_STE_MAPPED_NODE: 4144 vport->fc_map_cnt += count; 4145 break; 4146 case NLP_STE_NPR_NODE: 4147 if (vport->fc_npr_cnt == 0 && count == -1) 4148 vport->fc_npr_cnt = 0; 4149 else 4150 vport->fc_npr_cnt += count; 4151 break; 4152 } 4153 spin_unlock_irq(shost->host_lock); 4154 } 4155 4156 static void 4157 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4158 int old_state, int new_state) 4159 { 4160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4161 4162 if (new_state == NLP_STE_UNMAPPED_NODE) { 4163 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4164 ndlp->nlp_type |= NLP_FC_NODE; 4165 } 4166 if (new_state == NLP_STE_MAPPED_NODE) 4167 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4168 if (new_state == NLP_STE_NPR_NODE) 4169 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4170 4171 /* FCP and NVME Transport interface */ 4172 if ((old_state == NLP_STE_MAPPED_NODE || 4173 old_state == NLP_STE_UNMAPPED_NODE)) { 4174 if (ndlp->rport) { 4175 vport->phba->nport_event_cnt++; 4176 lpfc_unregister_remote_port(ndlp); 4177 } 4178 4179 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4180 vport->phba->nport_event_cnt++; 4181 if (vport->phba->nvmet_support == 0) 4182 /* Start devloss */ 4183 lpfc_nvme_unregister_port(vport, ndlp); 4184 else 4185 /* NVMET has no upcall. */ 4186 lpfc_nlp_put(ndlp); 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 * Initiators take the NDLP ref count in 4211 * the register. 4212 */ 4213 vport->phba->nport_event_cnt++; 4214 lpfc_nvme_register_port(vport, ndlp); 4215 } else { 4216 /* Just take an NDLP ref count since the 4217 * target does not register rports. 4218 */ 4219 lpfc_nlp_get(ndlp); 4220 } 4221 } 4222 } 4223 4224 if ((new_state == NLP_STE_MAPPED_NODE) && 4225 (vport->stat_data_enabled)) { 4226 /* 4227 * A new target is discovered, if there is no buffer for 4228 * statistical data collection allocate buffer. 4229 */ 4230 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4231 sizeof(struct lpfc_scsicmd_bkt), 4232 GFP_KERNEL); 4233 4234 if (!ndlp->lat_data) 4235 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4236 "0286 lpfc_nlp_state_cleanup failed to " 4237 "allocate statistical data buffer DID " 4238 "0x%x\n", ndlp->nlp_DID); 4239 } 4240 /* 4241 * If the node just added to Mapped list was an FCP target, 4242 * but the remote port registration failed or assigned a target 4243 * id outside the presentable range - move the node to the 4244 * Unmapped List. 4245 */ 4246 if ((new_state == NLP_STE_MAPPED_NODE) && 4247 (ndlp->nlp_type & NLP_FCP_TARGET) && 4248 (!ndlp->rport || 4249 ndlp->rport->scsi_target_id == -1 || 4250 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4251 spin_lock_irq(shost->host_lock); 4252 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4253 spin_unlock_irq(shost->host_lock); 4254 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4255 } 4256 } 4257 4258 static char * 4259 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4260 { 4261 static char *states[] = { 4262 [NLP_STE_UNUSED_NODE] = "UNUSED", 4263 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4264 [NLP_STE_ADISC_ISSUE] = "ADISC", 4265 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4266 [NLP_STE_PRLI_ISSUE] = "PRLI", 4267 [NLP_STE_LOGO_ISSUE] = "LOGO", 4268 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4269 [NLP_STE_MAPPED_NODE] = "MAPPED", 4270 [NLP_STE_NPR_NODE] = "NPR", 4271 }; 4272 4273 if (state < NLP_STE_MAX_STATE && states[state]) 4274 strlcpy(buffer, states[state], size); 4275 else 4276 snprintf(buffer, size, "unknown (%d)", state); 4277 return buffer; 4278 } 4279 4280 void 4281 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4282 int state) 4283 { 4284 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4285 int old_state = ndlp->nlp_state; 4286 char name1[16], name2[16]; 4287 4288 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4289 "0904 NPort state transition x%06x, %s -> %s\n", 4290 ndlp->nlp_DID, 4291 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4292 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4293 4294 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4295 "node statechg did:x%x old:%d ste:%d", 4296 ndlp->nlp_DID, old_state, state); 4297 4298 if (old_state == NLP_STE_NPR_NODE && 4299 state != NLP_STE_NPR_NODE) 4300 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4301 if (old_state == NLP_STE_UNMAPPED_NODE) { 4302 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4303 ndlp->nlp_type &= ~NLP_FC_NODE; 4304 } 4305 4306 if (list_empty(&ndlp->nlp_listp)) { 4307 spin_lock_irq(shost->host_lock); 4308 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4309 spin_unlock_irq(shost->host_lock); 4310 } else if (old_state) 4311 lpfc_nlp_counters(vport, old_state, -1); 4312 4313 ndlp->nlp_state = state; 4314 lpfc_nlp_counters(vport, state, 1); 4315 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4316 } 4317 4318 void 4319 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4320 { 4321 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4322 4323 if (list_empty(&ndlp->nlp_listp)) { 4324 spin_lock_irq(shost->host_lock); 4325 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4326 spin_unlock_irq(shost->host_lock); 4327 } 4328 } 4329 4330 void 4331 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4332 { 4333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4334 4335 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4336 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4337 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4338 spin_lock_irq(shost->host_lock); 4339 list_del_init(&ndlp->nlp_listp); 4340 spin_unlock_irq(shost->host_lock); 4341 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4342 NLP_STE_UNUSED_NODE); 4343 } 4344 4345 static void 4346 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4347 { 4348 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4349 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4350 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4351 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4352 NLP_STE_UNUSED_NODE); 4353 } 4354 /** 4355 * lpfc_initialize_node - Initialize all fields of node object 4356 * @vport: Pointer to Virtual Port object. 4357 * @ndlp: Pointer to FC node object. 4358 * @did: FC_ID of the node. 4359 * 4360 * This function is always called when node object need to be initialized. 4361 * It initializes all the fields of the node object. Although the reference 4362 * to phba from @ndlp can be obtained indirectly through it's reference to 4363 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4364 * to the life-span of the @ndlp might go beyond the existence of @vport as 4365 * the final release of ndlp is determined by its reference count. And, the 4366 * operation on @ndlp needs the reference to phba. 4367 **/ 4368 static inline void 4369 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4370 uint32_t did) 4371 { 4372 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4373 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4374 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4375 ndlp->nlp_DID = did; 4376 ndlp->vport = vport; 4377 ndlp->phba = vport->phba; 4378 ndlp->nlp_sid = NLP_NO_SID; 4379 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4380 kref_init(&ndlp->kref); 4381 NLP_INT_NODE_ACT(ndlp); 4382 atomic_set(&ndlp->cmd_pending, 0); 4383 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4384 } 4385 4386 struct lpfc_nodelist * 4387 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4388 int state) 4389 { 4390 struct lpfc_hba *phba = vport->phba; 4391 uint32_t did; 4392 unsigned long flags; 4393 unsigned long *active_rrqs_xri_bitmap = NULL; 4394 int rpi = LPFC_RPI_ALLOC_ERROR; 4395 4396 if (!ndlp) 4397 return NULL; 4398 4399 if (phba->sli_rev == LPFC_SLI_REV4) { 4400 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4401 if (rpi == LPFC_RPI_ALLOC_ERROR) 4402 return NULL; 4403 } 4404 4405 spin_lock_irqsave(&phba->ndlp_lock, flags); 4406 /* The ndlp should not be in memory free mode */ 4407 if (NLP_CHK_FREE_REQ(ndlp)) { 4408 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4409 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4410 "0277 lpfc_enable_node: ndlp:x%p " 4411 "usgmap:x%x refcnt:%d\n", 4412 (void *)ndlp, ndlp->nlp_usg_map, 4413 kref_read(&ndlp->kref)); 4414 goto free_rpi; 4415 } 4416 /* The ndlp should not already be in active mode */ 4417 if (NLP_CHK_NODE_ACT(ndlp)) { 4418 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4419 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4420 "0278 lpfc_enable_node: ndlp:x%p " 4421 "usgmap:x%x refcnt:%d\n", 4422 (void *)ndlp, ndlp->nlp_usg_map, 4423 kref_read(&ndlp->kref)); 4424 goto free_rpi; 4425 } 4426 4427 /* Keep the original DID */ 4428 did = ndlp->nlp_DID; 4429 if (phba->sli_rev == LPFC_SLI_REV4) 4430 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4431 4432 /* re-initialize ndlp except of ndlp linked list pointer */ 4433 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4434 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4435 lpfc_initialize_node(vport, ndlp, did); 4436 4437 if (phba->sli_rev == LPFC_SLI_REV4) 4438 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4439 4440 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4441 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4442 ndlp->nlp_rpi = rpi; 4443 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4444 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4445 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4446 ndlp->nlp_flag, 4447 kref_read(&ndlp->kref), 4448 ndlp->nlp_usg_map, ndlp); 4449 } 4450 4451 4452 if (state != NLP_STE_UNUSED_NODE) 4453 lpfc_nlp_set_state(vport, ndlp, state); 4454 4455 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4456 "node enable: did:x%x", 4457 ndlp->nlp_DID, 0, 0); 4458 return ndlp; 4459 4460 free_rpi: 4461 if (phba->sli_rev == LPFC_SLI_REV4) 4462 lpfc_sli4_free_rpi(vport->phba, rpi); 4463 return NULL; 4464 } 4465 4466 void 4467 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4468 { 4469 /* 4470 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4471 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4472 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4473 * until ALL other outstanding threads have completed. We check 4474 * that the ndlp not already in the UNUSED state before we proceed. 4475 */ 4476 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4477 return; 4478 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4479 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4480 lpfc_cleanup_vports_rrqs(vport, ndlp); 4481 lpfc_unreg_rpi(vport, ndlp); 4482 } 4483 4484 lpfc_nlp_put(ndlp); 4485 return; 4486 } 4487 4488 /* 4489 * Start / ReStart rescue timer for Discovery / RSCN handling 4490 */ 4491 void 4492 lpfc_set_disctmo(struct lpfc_vport *vport) 4493 { 4494 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4495 struct lpfc_hba *phba = vport->phba; 4496 uint32_t tmo; 4497 4498 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4499 /* For FAN, timeout should be greater than edtov */ 4500 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4501 } else { 4502 /* Normal discovery timeout should be > than ELS/CT timeout 4503 * FC spec states we need 3 * ratov for CT requests 4504 */ 4505 tmo = ((phba->fc_ratov * 3) + 3); 4506 } 4507 4508 4509 if (!timer_pending(&vport->fc_disctmo)) { 4510 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4511 "set disc timer: tmo:x%x state:x%x flg:x%x", 4512 tmo, vport->port_state, vport->fc_flag); 4513 } 4514 4515 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4516 spin_lock_irq(shost->host_lock); 4517 vport->fc_flag |= FC_DISC_TMO; 4518 spin_unlock_irq(shost->host_lock); 4519 4520 /* Start Discovery Timer state <hba_state> */ 4521 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4522 "0247 Start Discovery Timer state x%x " 4523 "Data: x%x x%lx x%x x%x\n", 4524 vport->port_state, tmo, 4525 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4526 vport->fc_adisc_cnt); 4527 4528 return; 4529 } 4530 4531 /* 4532 * Cancel rescue timer for Discovery / RSCN handling 4533 */ 4534 int 4535 lpfc_can_disctmo(struct lpfc_vport *vport) 4536 { 4537 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4538 unsigned long iflags; 4539 4540 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4541 "can disc timer: state:x%x rtry:x%x flg:x%x", 4542 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4543 4544 /* Turn off discovery timer if its running */ 4545 if (vport->fc_flag & FC_DISC_TMO) { 4546 spin_lock_irqsave(shost->host_lock, iflags); 4547 vport->fc_flag &= ~FC_DISC_TMO; 4548 spin_unlock_irqrestore(shost->host_lock, iflags); 4549 del_timer_sync(&vport->fc_disctmo); 4550 spin_lock_irqsave(&vport->work_port_lock, iflags); 4551 vport->work_port_events &= ~WORKER_DISC_TMO; 4552 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4553 } 4554 4555 /* Cancel Discovery Timer state <hba_state> */ 4556 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4557 "0248 Cancel Discovery Timer state x%x " 4558 "Data: x%x x%x x%x\n", 4559 vport->port_state, vport->fc_flag, 4560 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4561 return 0; 4562 } 4563 4564 /* 4565 * Check specified ring for outstanding IOCB on the SLI queue 4566 * Return true if iocb matches the specified nport 4567 */ 4568 int 4569 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4570 struct lpfc_sli_ring *pring, 4571 struct lpfc_iocbq *iocb, 4572 struct lpfc_nodelist *ndlp) 4573 { 4574 IOCB_t *icmd = &iocb->iocb; 4575 struct lpfc_vport *vport = ndlp->vport; 4576 4577 if (iocb->vport != vport) 4578 return 0; 4579 4580 if (pring->ringno == LPFC_ELS_RING) { 4581 switch (icmd->ulpCommand) { 4582 case CMD_GEN_REQUEST64_CR: 4583 if (iocb->context_un.ndlp == ndlp) 4584 return 1; 4585 case CMD_ELS_REQUEST64_CR: 4586 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4587 return 1; 4588 case CMD_XMIT_ELS_RSP64_CX: 4589 if (iocb->context1 == (uint8_t *) ndlp) 4590 return 1; 4591 } 4592 } else if (pring->ringno == LPFC_FCP_RING) { 4593 /* Skip match check if waiting to relogin to FCP target */ 4594 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4595 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4596 return 0; 4597 } 4598 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4599 return 1; 4600 } 4601 } 4602 return 0; 4603 } 4604 4605 static void 4606 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4607 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4608 struct list_head *dequeue_list) 4609 { 4610 struct lpfc_iocbq *iocb, *next_iocb; 4611 4612 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4613 /* Check to see if iocb matches the nport */ 4614 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4615 /* match, dequeue */ 4616 list_move_tail(&iocb->list, dequeue_list); 4617 } 4618 } 4619 4620 static void 4621 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4622 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4623 { 4624 struct lpfc_sli *psli = &phba->sli; 4625 uint32_t i; 4626 4627 spin_lock_irq(&phba->hbalock); 4628 for (i = 0; i < psli->num_rings; i++) 4629 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4630 dequeue_list); 4631 spin_unlock_irq(&phba->hbalock); 4632 } 4633 4634 static void 4635 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4636 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4637 { 4638 struct lpfc_sli_ring *pring; 4639 struct lpfc_queue *qp = NULL; 4640 4641 spin_lock_irq(&phba->hbalock); 4642 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4643 pring = qp->pring; 4644 if (!pring) 4645 continue; 4646 spin_lock(&pring->ring_lock); 4647 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4648 spin_unlock(&pring->ring_lock); 4649 } 4650 spin_unlock_irq(&phba->hbalock); 4651 } 4652 4653 /* 4654 * Free resources / clean up outstanding I/Os 4655 * associated with nlp_rpi in the LPFC_NODELIST entry. 4656 */ 4657 static int 4658 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4659 { 4660 LIST_HEAD(completions); 4661 4662 lpfc_fabric_abort_nport(ndlp); 4663 4664 /* 4665 * Everything that matches on txcmplq will be returned 4666 * by firmware with a no rpi error. 4667 */ 4668 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4669 if (phba->sli_rev != LPFC_SLI_REV4) 4670 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4671 else 4672 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4673 } 4674 4675 /* Cancel all the IOCBs from the completions list */ 4676 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4677 IOERR_SLI_ABORTED); 4678 4679 return 0; 4680 } 4681 4682 /** 4683 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4684 * @phba: Pointer to HBA context object. 4685 * @pmb: Pointer to mailbox object. 4686 * 4687 * This function will issue an ELS LOGO command after completing 4688 * the UNREG_RPI. 4689 **/ 4690 static void 4691 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4692 { 4693 struct lpfc_vport *vport = pmb->vport; 4694 struct lpfc_nodelist *ndlp; 4695 4696 ndlp = (struct lpfc_nodelist *)(pmb->context1); 4697 if (!ndlp) 4698 return; 4699 lpfc_issue_els_logo(vport, ndlp, 0); 4700 mempool_free(pmb, phba->mbox_mem_pool); 4701 } 4702 4703 /* 4704 * Free rpi associated with LPFC_NODELIST entry. 4705 * This routine is called from lpfc_freenode(), when we are removing 4706 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4707 * LOGO that completes successfully, and we are waiting to PLOGI back 4708 * to the remote NPort. In addition, it is called after we receive 4709 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4710 * we are waiting to PLOGI back to the remote NPort. 4711 */ 4712 int 4713 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4714 { 4715 struct lpfc_hba *phba = vport->phba; 4716 LPFC_MBOXQ_t *mbox; 4717 int rc, acc_plogi = 1; 4718 uint16_t rpi; 4719 4720 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4721 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4722 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4723 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4724 "3366 RPI x%x needs to be " 4725 "unregistered nlp_flag x%x " 4726 "did x%x\n", 4727 ndlp->nlp_rpi, ndlp->nlp_flag, 4728 ndlp->nlp_DID); 4729 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4730 if (mbox) { 4731 /* SLI4 ports require the physical rpi value. */ 4732 rpi = ndlp->nlp_rpi; 4733 if (phba->sli_rev == LPFC_SLI_REV4) 4734 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4735 4736 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4737 mbox->vport = vport; 4738 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4739 mbox->context1 = ndlp; 4740 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4741 } else { 4742 if (phba->sli_rev == LPFC_SLI_REV4 && 4743 (!(vport->load_flag & FC_UNLOADING)) && 4744 (bf_get(lpfc_sli_intf_if_type, 4745 &phba->sli4_hba.sli_intf) == 4746 LPFC_SLI_INTF_IF_TYPE_2) && 4747 (kref_read(&ndlp->kref) > 0)) { 4748 mbox->context1 = lpfc_nlp_get(ndlp); 4749 mbox->mbox_cmpl = 4750 lpfc_sli4_unreg_rpi_cmpl_clr; 4751 /* 4752 * accept PLOGIs after unreg_rpi_cmpl 4753 */ 4754 acc_plogi = 0; 4755 } else 4756 mbox->mbox_cmpl = 4757 lpfc_sli_def_mbox_cmpl; 4758 } 4759 4760 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4761 if (rc == MBX_NOT_FINISHED) { 4762 mempool_free(mbox, phba->mbox_mem_pool); 4763 acc_plogi = 1; 4764 } 4765 } 4766 lpfc_no_rpi(phba, ndlp); 4767 4768 if (phba->sli_rev != LPFC_SLI_REV4) 4769 ndlp->nlp_rpi = 0; 4770 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4771 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4772 if (acc_plogi) 4773 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4774 return 1; 4775 } 4776 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4777 return 0; 4778 } 4779 4780 /** 4781 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4782 * @phba: pointer to lpfc hba data structure. 4783 * 4784 * This routine is invoked to unregister all the currently registered RPIs 4785 * to the HBA. 4786 **/ 4787 void 4788 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4789 { 4790 struct lpfc_vport **vports; 4791 struct lpfc_nodelist *ndlp; 4792 struct Scsi_Host *shost; 4793 int i; 4794 4795 vports = lpfc_create_vport_work_array(phba); 4796 if (!vports) { 4797 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4798 "2884 Vport array allocation failed \n"); 4799 return; 4800 } 4801 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4802 shost = lpfc_shost_from_vport(vports[i]); 4803 spin_lock_irq(shost->host_lock); 4804 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4805 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4806 /* The mempool_alloc might sleep */ 4807 spin_unlock_irq(shost->host_lock); 4808 lpfc_unreg_rpi(vports[i], ndlp); 4809 spin_lock_irq(shost->host_lock); 4810 } 4811 } 4812 spin_unlock_irq(shost->host_lock); 4813 } 4814 lpfc_destroy_vport_work_array(phba, vports); 4815 } 4816 4817 void 4818 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4819 { 4820 struct lpfc_hba *phba = vport->phba; 4821 LPFC_MBOXQ_t *mbox; 4822 int rc; 4823 4824 if (phba->sli_rev == LPFC_SLI_REV4) { 4825 lpfc_sli4_unreg_all_rpis(vport); 4826 return; 4827 } 4828 4829 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4830 if (mbox) { 4831 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4832 mbox); 4833 mbox->vport = vport; 4834 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4835 mbox->context1 = NULL; 4836 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4837 if (rc != MBX_TIMEOUT) 4838 mempool_free(mbox, phba->mbox_mem_pool); 4839 4840 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4841 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4842 "1836 Could not issue " 4843 "unreg_login(all_rpis) status %d\n", rc); 4844 } 4845 } 4846 4847 void 4848 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4849 { 4850 struct lpfc_hba *phba = vport->phba; 4851 LPFC_MBOXQ_t *mbox; 4852 int rc; 4853 4854 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4855 if (mbox) { 4856 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4857 mbox); 4858 mbox->vport = vport; 4859 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4860 mbox->context1 = NULL; 4861 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4862 if (rc != MBX_TIMEOUT) 4863 mempool_free(mbox, phba->mbox_mem_pool); 4864 4865 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4866 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4867 "1815 Could not issue " 4868 "unreg_did (default rpis) status %d\n", 4869 rc); 4870 } 4871 } 4872 4873 /* 4874 * Free resources associated with LPFC_NODELIST entry 4875 * so it can be freed. 4876 */ 4877 static int 4878 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4879 { 4880 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4881 struct lpfc_hba *phba = vport->phba; 4882 LPFC_MBOXQ_t *mb, *nextmb; 4883 struct lpfc_dmabuf *mp; 4884 4885 /* Cleanup node for NPort <nlp_DID> */ 4886 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4887 "0900 Cleanup node for NPort x%x " 4888 "Data: x%x x%x x%x\n", 4889 ndlp->nlp_DID, ndlp->nlp_flag, 4890 ndlp->nlp_state, ndlp->nlp_rpi); 4891 if (NLP_CHK_FREE_REQ(ndlp)) { 4892 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4893 "0280 lpfc_cleanup_node: ndlp:x%p " 4894 "usgmap:x%x refcnt:%d\n", 4895 (void *)ndlp, ndlp->nlp_usg_map, 4896 kref_read(&ndlp->kref)); 4897 lpfc_dequeue_node(vport, ndlp); 4898 } else { 4899 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4900 "0281 lpfc_cleanup_node: ndlp:x%p " 4901 "usgmap:x%x refcnt:%d\n", 4902 (void *)ndlp, ndlp->nlp_usg_map, 4903 kref_read(&ndlp->kref)); 4904 lpfc_disable_node(vport, ndlp); 4905 } 4906 4907 4908 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 4909 4910 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 4911 if ((mb = phba->sli.mbox_active)) { 4912 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4913 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4914 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4915 mb->context2 = NULL; 4916 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4917 } 4918 } 4919 4920 spin_lock_irq(&phba->hbalock); 4921 /* Cleanup REG_LOGIN completions which are not yet processed */ 4922 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 4923 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 4924 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 4925 (ndlp != (struct lpfc_nodelist *) mb->context2)) 4926 continue; 4927 4928 mb->context2 = NULL; 4929 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4930 } 4931 4932 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 4933 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 4934 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 4935 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 4936 mp = (struct lpfc_dmabuf *) (mb->context1); 4937 if (mp) { 4938 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 4939 kfree(mp); 4940 } 4941 list_del(&mb->list); 4942 mempool_free(mb, phba->mbox_mem_pool); 4943 /* We shall not invoke the lpfc_nlp_put to decrement 4944 * the ndlp reference count as we are in the process 4945 * of lpfc_nlp_release. 4946 */ 4947 } 4948 } 4949 spin_unlock_irq(&phba->hbalock); 4950 4951 lpfc_els_abort(phba, ndlp); 4952 4953 spin_lock_irq(shost->host_lock); 4954 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 4955 spin_unlock_irq(shost->host_lock); 4956 4957 ndlp->nlp_last_elscmd = 0; 4958 del_timer_sync(&ndlp->nlp_delayfunc); 4959 4960 list_del_init(&ndlp->els_retry_evt.evt_listp); 4961 list_del_init(&ndlp->dev_loss_evt.evt_listp); 4962 lpfc_cleanup_vports_rrqs(vport, ndlp); 4963 lpfc_unreg_rpi(vport, ndlp); 4964 4965 return 0; 4966 } 4967 4968 /* 4969 * Check to see if we can free the nlp back to the freelist. 4970 * If we are in the middle of using the nlp in the discovery state 4971 * machine, defer the free till we reach the end of the state machine. 4972 */ 4973 static void 4974 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4975 { 4976 struct lpfc_hba *phba = vport->phba; 4977 struct lpfc_rport_data *rdata; 4978 struct fc_rport *rport; 4979 LPFC_MBOXQ_t *mbox; 4980 int rc; 4981 4982 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4983 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 4984 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 4985 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 4986 phba->sli_rev != LPFC_SLI_REV4) { 4987 /* For this case we need to cleanup the default rpi 4988 * allocated by the firmware. 4989 */ 4990 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4991 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 4992 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4993 kref_read(&ndlp->kref), 4994 ndlp->nlp_usg_map, ndlp); 4995 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 4996 != NULL) { 4997 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 4998 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 4999 if (rc) { 5000 mempool_free(mbox, phba->mbox_mem_pool); 5001 } 5002 else { 5003 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5004 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5005 mbox->vport = vport; 5006 mbox->context2 = ndlp; 5007 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5008 if (rc == MBX_NOT_FINISHED) { 5009 mempool_free(mbox, phba->mbox_mem_pool); 5010 } 5011 } 5012 } 5013 } 5014 lpfc_cleanup_node(vport, ndlp); 5015 5016 /* 5017 * ndlp->rport must be set to NULL before it reaches here 5018 * i.e. break rport/node link before doing lpfc_nlp_put for 5019 * registered rport and then drop the reference of rport. 5020 */ 5021 if (ndlp->rport) { 5022 /* 5023 * extra lpfc_nlp_put dropped the reference of ndlp 5024 * for registered rport so need to cleanup rport 5025 */ 5026 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5027 "0940 removed node x%p DID x%x " 5028 " rport not null %p\n", 5029 ndlp, ndlp->nlp_DID, ndlp->rport); 5030 rport = ndlp->rport; 5031 rdata = rport->dd_data; 5032 rdata->pnode = NULL; 5033 ndlp->rport = NULL; 5034 put_device(&rport->dev); 5035 } 5036 } 5037 5038 static int 5039 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5040 uint32_t did) 5041 { 5042 D_ID mydid, ndlpdid, matchdid; 5043 5044 if (did == Bcast_DID) 5045 return 0; 5046 5047 /* First check for Direct match */ 5048 if (ndlp->nlp_DID == did) 5049 return 1; 5050 5051 /* Next check for area/domain identically equals 0 match */ 5052 mydid.un.word = vport->fc_myDID; 5053 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5054 return 0; 5055 } 5056 5057 matchdid.un.word = did; 5058 ndlpdid.un.word = ndlp->nlp_DID; 5059 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5060 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5061 (mydid.un.b.area == matchdid.un.b.area)) { 5062 /* This code is supposed to match the ID 5063 * for a private loop device that is 5064 * connect to fl_port. But we need to 5065 * check that the port did not just go 5066 * from pt2pt to fabric or we could end 5067 * up matching ndlp->nlp_DID 000001 to 5068 * fabric DID 0x20101 5069 */ 5070 if ((ndlpdid.un.b.domain == 0) && 5071 (ndlpdid.un.b.area == 0)) { 5072 if (ndlpdid.un.b.id && 5073 vport->phba->fc_topology == 5074 LPFC_TOPOLOGY_LOOP) 5075 return 1; 5076 } 5077 return 0; 5078 } 5079 5080 matchdid.un.word = ndlp->nlp_DID; 5081 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5082 (mydid.un.b.area == ndlpdid.un.b.area)) { 5083 if ((matchdid.un.b.domain == 0) && 5084 (matchdid.un.b.area == 0)) { 5085 if (matchdid.un.b.id) 5086 return 1; 5087 } 5088 } 5089 } 5090 return 0; 5091 } 5092 5093 /* Search for a nodelist entry */ 5094 static struct lpfc_nodelist * 5095 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5096 { 5097 struct lpfc_nodelist *ndlp; 5098 uint32_t data1; 5099 5100 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5101 if (lpfc_matchdid(vport, ndlp, did)) { 5102 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5103 ((uint32_t) ndlp->nlp_xri << 16) | 5104 ((uint32_t) ndlp->nlp_type << 8) | 5105 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5106 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5107 "0929 FIND node DID " 5108 "Data: x%p x%x x%x x%x %p\n", 5109 ndlp, ndlp->nlp_DID, 5110 ndlp->nlp_flag, data1, 5111 ndlp->active_rrqs_xri_bitmap); 5112 return ndlp; 5113 } 5114 } 5115 5116 /* FIND node did <did> NOT FOUND */ 5117 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5118 "0932 FIND node did x%x NOT FOUND.\n", did); 5119 return NULL; 5120 } 5121 5122 struct lpfc_nodelist * 5123 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5124 { 5125 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5126 struct lpfc_nodelist *ndlp; 5127 unsigned long iflags; 5128 5129 spin_lock_irqsave(shost->host_lock, iflags); 5130 ndlp = __lpfc_findnode_did(vport, did); 5131 spin_unlock_irqrestore(shost->host_lock, iflags); 5132 return ndlp; 5133 } 5134 5135 struct lpfc_nodelist * 5136 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5137 { 5138 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5139 struct lpfc_nodelist *ndlp; 5140 5141 ndlp = lpfc_findnode_did(vport, did); 5142 if (!ndlp) { 5143 if (vport->phba->nvmet_support) 5144 return NULL; 5145 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5146 lpfc_rscn_payload_check(vport, did) == 0) 5147 return NULL; 5148 ndlp = lpfc_nlp_init(vport, did); 5149 if (!ndlp) 5150 return NULL; 5151 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5152 spin_lock_irq(shost->host_lock); 5153 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5154 spin_unlock_irq(shost->host_lock); 5155 return ndlp; 5156 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5157 if (vport->phba->nvmet_support) 5158 return NULL; 5159 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5160 if (!ndlp) 5161 return NULL; 5162 spin_lock_irq(shost->host_lock); 5163 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5164 spin_unlock_irq(shost->host_lock); 5165 return ndlp; 5166 } 5167 5168 /* The NVME Target does not want to actively manage an rport. 5169 * The goal is to allow the target to reset its state and clear 5170 * pending IO in preparation for the initiator to recover. 5171 */ 5172 if ((vport->fc_flag & FC_RSCN_MODE) && 5173 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5174 if (lpfc_rscn_payload_check(vport, did)) { 5175 5176 /* Since this node is marked for discovery, 5177 * delay timeout is not needed. 5178 */ 5179 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5180 5181 /* NVME Target mode waits until rport is known to be 5182 * impacted by the RSCN before it transitions. No 5183 * active management - just go to NPR provided the 5184 * node had a valid login. 5185 */ 5186 if (vport->phba->nvmet_support) 5187 return ndlp; 5188 5189 /* If we've already received a PLOGI from this NPort 5190 * we don't need to try to discover it again. 5191 */ 5192 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5193 return NULL; 5194 5195 spin_lock_irq(shost->host_lock); 5196 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5197 spin_unlock_irq(shost->host_lock); 5198 } else 5199 ndlp = NULL; 5200 } else { 5201 /* If the initiator received a PLOGI from this NPort or if the 5202 * initiator is already in the process of discovery on it, 5203 * there's no need to try to discover it again. 5204 */ 5205 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5206 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5207 (!vport->phba->nvmet_support && 5208 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5209 return NULL; 5210 5211 if (vport->phba->nvmet_support) 5212 return ndlp; 5213 5214 /* Moving to NPR state clears unsolicited flags and 5215 * allows for rediscovery 5216 */ 5217 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5218 5219 spin_lock_irq(shost->host_lock); 5220 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5221 spin_unlock_irq(shost->host_lock); 5222 } 5223 return ndlp; 5224 } 5225 5226 /* Build a list of nodes to discover based on the loopmap */ 5227 void 5228 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5229 { 5230 struct lpfc_hba *phba = vport->phba; 5231 int j; 5232 uint32_t alpa, index; 5233 5234 if (!lpfc_is_link_up(phba)) 5235 return; 5236 5237 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5238 return; 5239 5240 /* Check for loop map present or not */ 5241 if (phba->alpa_map[0]) { 5242 for (j = 1; j <= phba->alpa_map[0]; j++) { 5243 alpa = phba->alpa_map[j]; 5244 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5245 continue; 5246 lpfc_setup_disc_node(vport, alpa); 5247 } 5248 } else { 5249 /* No alpamap, so try all alpa's */ 5250 for (j = 0; j < FC_MAXLOOP; j++) { 5251 /* If cfg_scan_down is set, start from highest 5252 * ALPA (0xef) to lowest (0x1). 5253 */ 5254 if (vport->cfg_scan_down) 5255 index = j; 5256 else 5257 index = FC_MAXLOOP - j - 1; 5258 alpa = lpfcAlpaArray[index]; 5259 if ((vport->fc_myDID & 0xff) == alpa) 5260 continue; 5261 lpfc_setup_disc_node(vport, alpa); 5262 } 5263 } 5264 return; 5265 } 5266 5267 /* SLI3 only */ 5268 void 5269 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5270 { 5271 LPFC_MBOXQ_t *mbox; 5272 struct lpfc_sli *psli = &phba->sli; 5273 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5274 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5275 int rc; 5276 5277 /* 5278 * if it's not a physical port or if we already send 5279 * clear_la then don't send it. 5280 */ 5281 if ((phba->link_state >= LPFC_CLEAR_LA) || 5282 (vport->port_type != LPFC_PHYSICAL_PORT) || 5283 (phba->sli_rev == LPFC_SLI_REV4)) 5284 return; 5285 5286 /* Link up discovery */ 5287 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5288 phba->link_state = LPFC_CLEAR_LA; 5289 lpfc_clear_la(phba, mbox); 5290 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5291 mbox->vport = vport; 5292 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5293 if (rc == MBX_NOT_FINISHED) { 5294 mempool_free(mbox, phba->mbox_mem_pool); 5295 lpfc_disc_flush_list(vport); 5296 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5297 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5298 phba->link_state = LPFC_HBA_ERROR; 5299 } 5300 } 5301 } 5302 5303 /* Reg_vpi to tell firmware to resume normal operations */ 5304 void 5305 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5306 { 5307 LPFC_MBOXQ_t *regvpimbox; 5308 5309 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5310 if (regvpimbox) { 5311 lpfc_reg_vpi(vport, regvpimbox); 5312 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5313 regvpimbox->vport = vport; 5314 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5315 == MBX_NOT_FINISHED) { 5316 mempool_free(regvpimbox, phba->mbox_mem_pool); 5317 } 5318 } 5319 } 5320 5321 /* Start Link up / RSCN discovery on NPR nodes */ 5322 void 5323 lpfc_disc_start(struct lpfc_vport *vport) 5324 { 5325 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5326 struct lpfc_hba *phba = vport->phba; 5327 uint32_t num_sent; 5328 uint32_t clear_la_pending; 5329 5330 if (!lpfc_is_link_up(phba)) { 5331 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5332 "3315 Link is not up %x\n", 5333 phba->link_state); 5334 return; 5335 } 5336 5337 if (phba->link_state == LPFC_CLEAR_LA) 5338 clear_la_pending = 1; 5339 else 5340 clear_la_pending = 0; 5341 5342 if (vport->port_state < LPFC_VPORT_READY) 5343 vport->port_state = LPFC_DISC_AUTH; 5344 5345 lpfc_set_disctmo(vport); 5346 5347 vport->fc_prevDID = vport->fc_myDID; 5348 vport->num_disc_nodes = 0; 5349 5350 /* Start Discovery state <hba_state> */ 5351 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5352 "0202 Start Discovery hba state x%x " 5353 "Data: x%x x%x x%x\n", 5354 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5355 vport->fc_adisc_cnt); 5356 5357 /* First do ADISCs - if any */ 5358 num_sent = lpfc_els_disc_adisc(vport); 5359 5360 if (num_sent) 5361 return; 5362 5363 /* Register the VPI for SLI3, NPIV only. */ 5364 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5365 !(vport->fc_flag & FC_PT2PT) && 5366 !(vport->fc_flag & FC_RSCN_MODE) && 5367 (phba->sli_rev < LPFC_SLI_REV4)) { 5368 lpfc_issue_clear_la(phba, vport); 5369 lpfc_issue_reg_vpi(phba, vport); 5370 return; 5371 } 5372 5373 /* 5374 * For SLI2, we need to set port_state to READY and continue 5375 * discovery. 5376 */ 5377 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5378 /* If we get here, there is nothing to ADISC */ 5379 lpfc_issue_clear_la(phba, vport); 5380 5381 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5382 vport->num_disc_nodes = 0; 5383 /* go thru NPR nodes and issue ELS PLOGIs */ 5384 if (vport->fc_npr_cnt) 5385 lpfc_els_disc_plogi(vport); 5386 5387 if (!vport->num_disc_nodes) { 5388 spin_lock_irq(shost->host_lock); 5389 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5390 spin_unlock_irq(shost->host_lock); 5391 lpfc_can_disctmo(vport); 5392 } 5393 } 5394 vport->port_state = LPFC_VPORT_READY; 5395 } else { 5396 /* Next do PLOGIs - if any */ 5397 num_sent = lpfc_els_disc_plogi(vport); 5398 5399 if (num_sent) 5400 return; 5401 5402 if (vport->fc_flag & FC_RSCN_MODE) { 5403 /* Check to see if more RSCNs came in while we 5404 * were processing this one. 5405 */ 5406 if ((vport->fc_rscn_id_cnt == 0) && 5407 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5408 spin_lock_irq(shost->host_lock); 5409 vport->fc_flag &= ~FC_RSCN_MODE; 5410 spin_unlock_irq(shost->host_lock); 5411 lpfc_can_disctmo(vport); 5412 } else 5413 lpfc_els_handle_rscn(vport); 5414 } 5415 } 5416 return; 5417 } 5418 5419 /* 5420 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5421 * ring the match the sppecified nodelist. 5422 */ 5423 static void 5424 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5425 { 5426 LIST_HEAD(completions); 5427 struct lpfc_sli *psli; 5428 IOCB_t *icmd; 5429 struct lpfc_iocbq *iocb, *next_iocb; 5430 struct lpfc_sli_ring *pring; 5431 5432 psli = &phba->sli; 5433 pring = lpfc_phba_elsring(phba); 5434 if (unlikely(!pring)) 5435 return; 5436 5437 /* Error matching iocb on txq or txcmplq 5438 * First check the txq. 5439 */ 5440 spin_lock_irq(&phba->hbalock); 5441 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5442 if (iocb->context1 != ndlp) { 5443 continue; 5444 } 5445 icmd = &iocb->iocb; 5446 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5447 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5448 5449 list_move_tail(&iocb->list, &completions); 5450 } 5451 } 5452 5453 /* Next check the txcmplq */ 5454 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5455 if (iocb->context1 != ndlp) { 5456 continue; 5457 } 5458 icmd = &iocb->iocb; 5459 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5460 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5461 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5462 } 5463 } 5464 spin_unlock_irq(&phba->hbalock); 5465 5466 /* Cancel all the IOCBs from the completions list */ 5467 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5468 IOERR_SLI_ABORTED); 5469 } 5470 5471 static void 5472 lpfc_disc_flush_list(struct lpfc_vport *vport) 5473 { 5474 struct lpfc_nodelist *ndlp, *next_ndlp; 5475 struct lpfc_hba *phba = vport->phba; 5476 5477 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5478 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5479 nlp_listp) { 5480 if (!NLP_CHK_NODE_ACT(ndlp)) 5481 continue; 5482 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5483 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5484 lpfc_free_tx(phba, ndlp); 5485 } 5486 } 5487 } 5488 } 5489 5490 void 5491 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5492 { 5493 lpfc_els_flush_rscn(vport); 5494 lpfc_els_flush_cmd(vport); 5495 lpfc_disc_flush_list(vport); 5496 } 5497 5498 /*****************************************************************************/ 5499 /* 5500 * NAME: lpfc_disc_timeout 5501 * 5502 * FUNCTION: Fibre Channel driver discovery timeout routine. 5503 * 5504 * EXECUTION ENVIRONMENT: interrupt only 5505 * 5506 * CALLED FROM: 5507 * Timer function 5508 * 5509 * RETURNS: 5510 * none 5511 */ 5512 /*****************************************************************************/ 5513 void 5514 lpfc_disc_timeout(struct timer_list *t) 5515 { 5516 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5517 struct lpfc_hba *phba = vport->phba; 5518 uint32_t tmo_posted; 5519 unsigned long flags = 0; 5520 5521 if (unlikely(!phba)) 5522 return; 5523 5524 spin_lock_irqsave(&vport->work_port_lock, flags); 5525 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5526 if (!tmo_posted) 5527 vport->work_port_events |= WORKER_DISC_TMO; 5528 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5529 5530 if (!tmo_posted) 5531 lpfc_worker_wake_up(phba); 5532 return; 5533 } 5534 5535 static void 5536 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5537 { 5538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5539 struct lpfc_hba *phba = vport->phba; 5540 struct lpfc_sli *psli = &phba->sli; 5541 struct lpfc_nodelist *ndlp, *next_ndlp; 5542 LPFC_MBOXQ_t *initlinkmbox; 5543 int rc, clrlaerr = 0; 5544 5545 if (!(vport->fc_flag & FC_DISC_TMO)) 5546 return; 5547 5548 spin_lock_irq(shost->host_lock); 5549 vport->fc_flag &= ~FC_DISC_TMO; 5550 spin_unlock_irq(shost->host_lock); 5551 5552 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5553 "disc timeout: state:x%x rtry:x%x flg:x%x", 5554 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5555 5556 switch (vport->port_state) { 5557 5558 case LPFC_LOCAL_CFG_LINK: 5559 /* 5560 * port_state is identically LPFC_LOCAL_CFG_LINK while 5561 * waiting for FAN timeout 5562 */ 5563 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5564 "0221 FAN timeout\n"); 5565 5566 /* Start discovery by sending FLOGI, clean up old rpis */ 5567 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5568 nlp_listp) { 5569 if (!NLP_CHK_NODE_ACT(ndlp)) 5570 continue; 5571 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5572 continue; 5573 if (ndlp->nlp_type & NLP_FABRIC) { 5574 /* Clean up the ndlp on Fabric connections */ 5575 lpfc_drop_node(vport, ndlp); 5576 5577 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5578 /* Fail outstanding IO now since device 5579 * is marked for PLOGI. 5580 */ 5581 lpfc_unreg_rpi(vport, ndlp); 5582 } 5583 } 5584 if (vport->port_state != LPFC_FLOGI) { 5585 if (phba->sli_rev <= LPFC_SLI_REV3) 5586 lpfc_initial_flogi(vport); 5587 else 5588 lpfc_issue_init_vfi(vport); 5589 return; 5590 } 5591 break; 5592 5593 case LPFC_FDISC: 5594 case LPFC_FLOGI: 5595 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5596 /* Initial FLOGI timeout */ 5597 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5598 "0222 Initial %s timeout\n", 5599 vport->vpi ? "FDISC" : "FLOGI"); 5600 5601 /* Assume no Fabric and go on with discovery. 5602 * Check for outstanding ELS FLOGI to abort. 5603 */ 5604 5605 /* FLOGI failed, so just use loop map to make discovery list */ 5606 lpfc_disc_list_loopmap(vport); 5607 5608 /* Start discovery */ 5609 lpfc_disc_start(vport); 5610 break; 5611 5612 case LPFC_FABRIC_CFG_LINK: 5613 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5614 NameServer login */ 5615 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5616 "0223 Timeout while waiting for " 5617 "NameServer login\n"); 5618 /* Next look for NameServer ndlp */ 5619 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5620 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5621 lpfc_els_abort(phba, ndlp); 5622 5623 /* ReStart discovery */ 5624 goto restart_disc; 5625 5626 case LPFC_NS_QRY: 5627 /* Check for wait for NameServer Rsp timeout */ 5628 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5629 "0224 NameServer Query timeout " 5630 "Data: x%x x%x\n", 5631 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5632 5633 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5634 /* Try it one more time */ 5635 vport->fc_ns_retry++; 5636 vport->gidft_inp = 0; 5637 rc = lpfc_issue_gidft(vport); 5638 if (rc == 0) 5639 break; 5640 } 5641 vport->fc_ns_retry = 0; 5642 5643 restart_disc: 5644 /* 5645 * Discovery is over. 5646 * set port_state to PORT_READY if SLI2. 5647 * cmpl_reg_vpi will set port_state to READY for SLI3. 5648 */ 5649 if (phba->sli_rev < LPFC_SLI_REV4) { 5650 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5651 lpfc_issue_reg_vpi(phba, vport); 5652 else { 5653 lpfc_issue_clear_la(phba, vport); 5654 vport->port_state = LPFC_VPORT_READY; 5655 } 5656 } 5657 5658 /* Setup and issue mailbox INITIALIZE LINK command */ 5659 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5660 if (!initlinkmbox) { 5661 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5662 "0206 Device Discovery " 5663 "completion error\n"); 5664 phba->link_state = LPFC_HBA_ERROR; 5665 break; 5666 } 5667 5668 lpfc_linkdown(phba); 5669 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5670 phba->cfg_link_speed); 5671 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5672 initlinkmbox->vport = vport; 5673 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5674 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5675 lpfc_set_loopback_flag(phba); 5676 if (rc == MBX_NOT_FINISHED) 5677 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5678 5679 break; 5680 5681 case LPFC_DISC_AUTH: 5682 /* Node Authentication timeout */ 5683 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5684 "0227 Node Authentication timeout\n"); 5685 lpfc_disc_flush_list(vport); 5686 5687 /* 5688 * set port_state to PORT_READY if SLI2. 5689 * cmpl_reg_vpi will set port_state to READY for SLI3. 5690 */ 5691 if (phba->sli_rev < LPFC_SLI_REV4) { 5692 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5693 lpfc_issue_reg_vpi(phba, vport); 5694 else { /* NPIV Not enabled */ 5695 lpfc_issue_clear_la(phba, vport); 5696 vport->port_state = LPFC_VPORT_READY; 5697 } 5698 } 5699 break; 5700 5701 case LPFC_VPORT_READY: 5702 if (vport->fc_flag & FC_RSCN_MODE) { 5703 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5704 "0231 RSCN timeout Data: x%x " 5705 "x%x\n", 5706 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5707 5708 /* Cleanup any outstanding ELS commands */ 5709 lpfc_els_flush_cmd(vport); 5710 5711 lpfc_els_flush_rscn(vport); 5712 lpfc_disc_flush_list(vport); 5713 } 5714 break; 5715 5716 default: 5717 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5718 "0273 Unexpected discovery timeout, " 5719 "vport State x%x\n", vport->port_state); 5720 break; 5721 } 5722 5723 switch (phba->link_state) { 5724 case LPFC_CLEAR_LA: 5725 /* CLEAR LA timeout */ 5726 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5727 "0228 CLEAR LA timeout\n"); 5728 clrlaerr = 1; 5729 break; 5730 5731 case LPFC_LINK_UP: 5732 lpfc_issue_clear_la(phba, vport); 5733 /* Drop thru */ 5734 case LPFC_LINK_UNKNOWN: 5735 case LPFC_WARM_START: 5736 case LPFC_INIT_START: 5737 case LPFC_INIT_MBX_CMDS: 5738 case LPFC_LINK_DOWN: 5739 case LPFC_HBA_ERROR: 5740 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5741 "0230 Unexpected timeout, hba link " 5742 "state x%x\n", phba->link_state); 5743 clrlaerr = 1; 5744 break; 5745 5746 case LPFC_HBA_READY: 5747 break; 5748 } 5749 5750 if (clrlaerr) { 5751 lpfc_disc_flush_list(vport); 5752 if (phba->sli_rev != LPFC_SLI_REV4) { 5753 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5754 ~LPFC_STOP_IOCB_EVENT; 5755 psli->sli3_ring[LPFC_FCP_RING].flag &= 5756 ~LPFC_STOP_IOCB_EVENT; 5757 } 5758 vport->port_state = LPFC_VPORT_READY; 5759 } 5760 return; 5761 } 5762 5763 /* 5764 * This routine handles processing a NameServer REG_LOGIN mailbox 5765 * command upon completion. It is setup in the LPFC_MBOXQ 5766 * as the completion routine when the command is 5767 * handed off to the SLI layer. 5768 */ 5769 void 5770 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5771 { 5772 MAILBOX_t *mb = &pmb->u.mb; 5773 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); 5774 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; 5775 struct lpfc_vport *vport = pmb->vport; 5776 5777 pmb->context1 = NULL; 5778 pmb->context2 = NULL; 5779 5780 if (phba->sli_rev < LPFC_SLI_REV4) 5781 ndlp->nlp_rpi = mb->un.varWords[0]; 5782 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5783 ndlp->nlp_type |= NLP_FABRIC; 5784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5785 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5786 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5787 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5788 kref_read(&ndlp->kref), 5789 ndlp->nlp_usg_map, ndlp); 5790 /* 5791 * Start issuing Fabric-Device Management Interface (FDMI) command to 5792 * 0xfffffa (FDMI well known port). 5793 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5794 * DPRT -> RPRT (vports) 5795 */ 5796 if (vport->port_type == LPFC_PHYSICAL_PORT) 5797 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5798 else 5799 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5800 5801 5802 /* decrement the node reference count held for this callback 5803 * function. 5804 */ 5805 lpfc_nlp_put(ndlp); 5806 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5807 kfree(mp); 5808 mempool_free(pmb, phba->mbox_mem_pool); 5809 5810 return; 5811 } 5812 5813 static int 5814 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5815 { 5816 uint16_t *rpi = param; 5817 5818 /* check for active node */ 5819 if (!NLP_CHK_NODE_ACT(ndlp)) 5820 return 0; 5821 5822 return ndlp->nlp_rpi == *rpi; 5823 } 5824 5825 static int 5826 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5827 { 5828 return memcmp(&ndlp->nlp_portname, param, 5829 sizeof(ndlp->nlp_portname)) == 0; 5830 } 5831 5832 static struct lpfc_nodelist * 5833 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5834 { 5835 struct lpfc_nodelist *ndlp; 5836 5837 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5838 if (filter(ndlp, param)) { 5839 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5840 "3185 FIND node filter %p DID " 5841 "Data: x%p x%x x%x\n", 5842 filter, ndlp, ndlp->nlp_DID, 5843 ndlp->nlp_flag); 5844 return ndlp; 5845 } 5846 } 5847 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5848 "3186 FIND node filter %p NOT FOUND.\n", filter); 5849 return NULL; 5850 } 5851 5852 /* 5853 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5854 * returns the node list element pointer else return NULL. 5855 */ 5856 struct lpfc_nodelist * 5857 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5858 { 5859 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5860 } 5861 5862 /* 5863 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5864 * returns the node element list pointer else return NULL. 5865 */ 5866 struct lpfc_nodelist * 5867 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5868 { 5869 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5870 struct lpfc_nodelist *ndlp; 5871 5872 spin_lock_irq(shost->host_lock); 5873 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 5874 spin_unlock_irq(shost->host_lock); 5875 return ndlp; 5876 } 5877 5878 /* 5879 * This routine looks up the ndlp lists for the given RPI. If the rpi 5880 * is found, the routine returns the node element list pointer else 5881 * return NULL. 5882 */ 5883 struct lpfc_nodelist * 5884 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5885 { 5886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5887 struct lpfc_nodelist *ndlp; 5888 5889 spin_lock_irq(shost->host_lock); 5890 ndlp = __lpfc_findnode_rpi(vport, rpi); 5891 spin_unlock_irq(shost->host_lock); 5892 return ndlp; 5893 } 5894 5895 /** 5896 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 5897 * @phba: pointer to lpfc hba data structure. 5898 * @vpi: the physical host virtual N_Port identifier. 5899 * 5900 * This routine finds a vport on a HBA (referred by @phba) through a 5901 * @vpi. The function walks the HBA's vport list and returns the address 5902 * of the vport with the matching @vpi. 5903 * 5904 * Return code 5905 * NULL - No vport with the matching @vpi found 5906 * Otherwise - Address to the vport with the matching @vpi. 5907 **/ 5908 struct lpfc_vport * 5909 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5910 { 5911 struct lpfc_vport *vport; 5912 unsigned long flags; 5913 int i = 0; 5914 5915 /* The physical ports are always vpi 0 - translate is unnecessary. */ 5916 if (vpi > 0) { 5917 /* 5918 * Translate the physical vpi to the logical vpi. The 5919 * vport stores the logical vpi. 5920 */ 5921 for (i = 0; i < phba->max_vpi; i++) { 5922 if (vpi == phba->vpi_ids[i]) 5923 break; 5924 } 5925 5926 if (i >= phba->max_vpi) { 5927 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 5928 "2936 Could not find Vport mapped " 5929 "to vpi %d\n", vpi); 5930 return NULL; 5931 } 5932 } 5933 5934 spin_lock_irqsave(&phba->hbalock, flags); 5935 list_for_each_entry(vport, &phba->port_list, listentry) { 5936 if (vport->vpi == i) { 5937 spin_unlock_irqrestore(&phba->hbalock, flags); 5938 return vport; 5939 } 5940 } 5941 spin_unlock_irqrestore(&phba->hbalock, flags); 5942 return NULL; 5943 } 5944 5945 struct lpfc_nodelist * 5946 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 5947 { 5948 struct lpfc_nodelist *ndlp; 5949 int rpi = LPFC_RPI_ALLOC_ERROR; 5950 5951 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5952 rpi = lpfc_sli4_alloc_rpi(vport->phba); 5953 if (rpi == LPFC_RPI_ALLOC_ERROR) 5954 return NULL; 5955 } 5956 5957 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 5958 if (!ndlp) { 5959 if (vport->phba->sli_rev == LPFC_SLI_REV4) 5960 lpfc_sli4_free_rpi(vport->phba, rpi); 5961 return NULL; 5962 } 5963 5964 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 5965 5966 lpfc_initialize_node(vport, ndlp, did); 5967 INIT_LIST_HEAD(&ndlp->nlp_listp); 5968 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 5969 ndlp->nlp_rpi = rpi; 5970 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5971 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 5972 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 5973 ndlp->nlp_flag, 5974 kref_read(&ndlp->kref), 5975 ndlp->nlp_usg_map, ndlp); 5976 5977 ndlp->active_rrqs_xri_bitmap = 5978 mempool_alloc(vport->phba->active_rrq_pool, 5979 GFP_KERNEL); 5980 if (ndlp->active_rrqs_xri_bitmap) 5981 memset(ndlp->active_rrqs_xri_bitmap, 0, 5982 ndlp->phba->cfg_rrq_xri_bitmap_sz); 5983 } 5984 5985 5986 5987 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 5988 "node init: did:x%x", 5989 ndlp->nlp_DID, 0, 0); 5990 5991 return ndlp; 5992 } 5993 5994 /* This routine releases all resources associated with a specifc NPort's ndlp 5995 * and mempool_free's the nodelist. 5996 */ 5997 static void 5998 lpfc_nlp_release(struct kref *kref) 5999 { 6000 struct lpfc_hba *phba; 6001 unsigned long flags; 6002 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6003 kref); 6004 6005 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6006 "node release: did:x%x flg:x%x type:x%x", 6007 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6008 6009 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6010 "0279 lpfc_nlp_release: ndlp:x%p did %x " 6011 "usgmap:x%x refcnt:%d rpi:%x\n", 6012 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6013 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6014 6015 /* remove ndlp from action. */ 6016 lpfc_nlp_remove(ndlp->vport, ndlp); 6017 6018 /* clear the ndlp active flag for all release cases */ 6019 phba = ndlp->phba; 6020 spin_lock_irqsave(&phba->ndlp_lock, flags); 6021 NLP_CLR_NODE_ACT(ndlp); 6022 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6023 if (phba->sli_rev == LPFC_SLI_REV4) 6024 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 6025 6026 /* free ndlp memory for final ndlp release */ 6027 if (NLP_CHK_FREE_REQ(ndlp)) { 6028 kfree(ndlp->lat_data); 6029 if (phba->sli_rev == LPFC_SLI_REV4) 6030 mempool_free(ndlp->active_rrqs_xri_bitmap, 6031 ndlp->phba->active_rrq_pool); 6032 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6033 } 6034 } 6035 6036 /* This routine bumps the reference count for a ndlp structure to ensure 6037 * that one discovery thread won't free a ndlp while another discovery thread 6038 * is using it. 6039 */ 6040 struct lpfc_nodelist * 6041 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6042 { 6043 struct lpfc_hba *phba; 6044 unsigned long flags; 6045 6046 if (ndlp) { 6047 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6048 "node get: did:x%x flg:x%x refcnt:x%x", 6049 ndlp->nlp_DID, ndlp->nlp_flag, 6050 kref_read(&ndlp->kref)); 6051 /* The check of ndlp usage to prevent incrementing the 6052 * ndlp reference count that is in the process of being 6053 * released. 6054 */ 6055 phba = ndlp->phba; 6056 spin_lock_irqsave(&phba->ndlp_lock, flags); 6057 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6058 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6059 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6060 "0276 lpfc_nlp_get: ndlp:x%p " 6061 "usgmap:x%x refcnt:%d\n", 6062 (void *)ndlp, ndlp->nlp_usg_map, 6063 kref_read(&ndlp->kref)); 6064 return NULL; 6065 } else 6066 kref_get(&ndlp->kref); 6067 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6068 } 6069 return ndlp; 6070 } 6071 6072 /* This routine decrements the reference count for a ndlp structure. If the 6073 * count goes to 0, this indicates the the associated nodelist should be 6074 * freed. Returning 1 indicates the ndlp resource has been released; on the 6075 * other hand, returning 0 indicates the ndlp resource has not been released 6076 * yet. 6077 */ 6078 int 6079 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6080 { 6081 struct lpfc_hba *phba; 6082 unsigned long flags; 6083 6084 if (!ndlp) 6085 return 1; 6086 6087 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6088 "node put: did:x%x flg:x%x refcnt:x%x", 6089 ndlp->nlp_DID, ndlp->nlp_flag, 6090 kref_read(&ndlp->kref)); 6091 phba = ndlp->phba; 6092 spin_lock_irqsave(&phba->ndlp_lock, flags); 6093 /* Check the ndlp memory free acknowledge flag to avoid the 6094 * possible race condition that kref_put got invoked again 6095 * after previous one has done ndlp memory free. 6096 */ 6097 if (NLP_CHK_FREE_ACK(ndlp)) { 6098 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6099 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6100 "0274 lpfc_nlp_put: ndlp:x%p " 6101 "usgmap:x%x refcnt:%d\n", 6102 (void *)ndlp, ndlp->nlp_usg_map, 6103 kref_read(&ndlp->kref)); 6104 return 1; 6105 } 6106 /* Check the ndlp inactivate log flag to avoid the possible 6107 * race condition that kref_put got invoked again after ndlp 6108 * is already in inactivating state. 6109 */ 6110 if (NLP_CHK_IACT_REQ(ndlp)) { 6111 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6112 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6113 "0275 lpfc_nlp_put: ndlp:x%p " 6114 "usgmap:x%x refcnt:%d\n", 6115 (void *)ndlp, ndlp->nlp_usg_map, 6116 kref_read(&ndlp->kref)); 6117 return 1; 6118 } 6119 /* For last put, mark the ndlp usage flags to make sure no 6120 * other kref_get and kref_put on the same ndlp shall get 6121 * in between the process when the final kref_put has been 6122 * invoked on this ndlp. 6123 */ 6124 if (kref_read(&ndlp->kref) == 1) { 6125 /* Indicate ndlp is put to inactive state. */ 6126 NLP_SET_IACT_REQ(ndlp); 6127 /* Acknowledge ndlp memory free has been seen. */ 6128 if (NLP_CHK_FREE_REQ(ndlp)) 6129 NLP_SET_FREE_ACK(ndlp); 6130 } 6131 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6132 /* Note, the kref_put returns 1 when decrementing a reference 6133 * count that was 1, it invokes the release callback function, 6134 * but it still left the reference count as 1 (not actually 6135 * performs the last decrementation). Otherwise, it actually 6136 * decrements the reference count and returns 0. 6137 */ 6138 return kref_put(&ndlp->kref, lpfc_nlp_release); 6139 } 6140 6141 /* This routine free's the specified nodelist if it is not in use 6142 * by any other discovery thread. This routine returns 1 if the 6143 * ndlp has been freed. A return value of 0 indicates the ndlp is 6144 * not yet been released. 6145 */ 6146 int 6147 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6148 { 6149 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6150 "node not used: did:x%x flg:x%x refcnt:x%x", 6151 ndlp->nlp_DID, ndlp->nlp_flag, 6152 kref_read(&ndlp->kref)); 6153 if (kref_read(&ndlp->kref) == 1) 6154 if (lpfc_nlp_put(ndlp)) 6155 return 1; 6156 return 0; 6157 } 6158 6159 /** 6160 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6161 * @phba: Pointer to hba context object. 6162 * 6163 * This function iterate through all FC nodes associated 6164 * will all vports to check if there is any node with 6165 * fc_rports associated with it. If there is an fc_rport 6166 * associated with the node, then the node is either in 6167 * discovered state or its devloss_timer is pending. 6168 */ 6169 static int 6170 lpfc_fcf_inuse(struct lpfc_hba *phba) 6171 { 6172 struct lpfc_vport **vports; 6173 int i, ret = 0; 6174 struct lpfc_nodelist *ndlp; 6175 struct Scsi_Host *shost; 6176 6177 vports = lpfc_create_vport_work_array(phba); 6178 6179 /* If driver cannot allocate memory, indicate fcf is in use */ 6180 if (!vports) 6181 return 1; 6182 6183 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6184 shost = lpfc_shost_from_vport(vports[i]); 6185 spin_lock_irq(shost->host_lock); 6186 /* 6187 * IF the CVL_RCVD bit is not set then we have sent the 6188 * flogi. 6189 * If dev_loss fires while we are waiting we do not want to 6190 * unreg the fcf. 6191 */ 6192 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6193 spin_unlock_irq(shost->host_lock); 6194 ret = 1; 6195 goto out; 6196 } 6197 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6198 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6199 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6200 ret = 1; 6201 spin_unlock_irq(shost->host_lock); 6202 goto out; 6203 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6204 ret = 1; 6205 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6206 "2624 RPI %x DID %x flag %x " 6207 "still logged in\n", 6208 ndlp->nlp_rpi, ndlp->nlp_DID, 6209 ndlp->nlp_flag); 6210 } 6211 } 6212 spin_unlock_irq(shost->host_lock); 6213 } 6214 out: 6215 lpfc_destroy_vport_work_array(phba, vports); 6216 return ret; 6217 } 6218 6219 /** 6220 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6221 * @phba: Pointer to hba context object. 6222 * @mboxq: Pointer to mailbox object. 6223 * 6224 * This function frees memory associated with the mailbox command. 6225 */ 6226 void 6227 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6228 { 6229 struct lpfc_vport *vport = mboxq->vport; 6230 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6231 6232 if (mboxq->u.mb.mbxStatus) { 6233 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6234 "2555 UNREG_VFI mbxStatus error x%x " 6235 "HBA state x%x\n", 6236 mboxq->u.mb.mbxStatus, vport->port_state); 6237 } 6238 spin_lock_irq(shost->host_lock); 6239 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6240 spin_unlock_irq(shost->host_lock); 6241 mempool_free(mboxq, phba->mbox_mem_pool); 6242 return; 6243 } 6244 6245 /** 6246 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6247 * @phba: Pointer to hba context object. 6248 * @mboxq: Pointer to mailbox object. 6249 * 6250 * This function frees memory associated with the mailbox command. 6251 */ 6252 static void 6253 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6254 { 6255 struct lpfc_vport *vport = mboxq->vport; 6256 6257 if (mboxq->u.mb.mbxStatus) { 6258 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6259 "2550 UNREG_FCFI mbxStatus error x%x " 6260 "HBA state x%x\n", 6261 mboxq->u.mb.mbxStatus, vport->port_state); 6262 } 6263 mempool_free(mboxq, phba->mbox_mem_pool); 6264 return; 6265 } 6266 6267 /** 6268 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6269 * @phba: Pointer to hba context object. 6270 * 6271 * This function prepare the HBA for unregistering the currently registered 6272 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6273 * VFIs. 6274 */ 6275 int 6276 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6277 { 6278 struct lpfc_vport **vports; 6279 struct lpfc_nodelist *ndlp; 6280 struct Scsi_Host *shost; 6281 int i = 0, rc; 6282 6283 /* Unregister RPIs */ 6284 if (lpfc_fcf_inuse(phba)) 6285 lpfc_unreg_hba_rpis(phba); 6286 6287 /* At this point, all discovery is aborted */ 6288 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6289 6290 /* Unregister VPIs */ 6291 vports = lpfc_create_vport_work_array(phba); 6292 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6293 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6294 /* Stop FLOGI/FDISC retries */ 6295 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6296 if (ndlp) 6297 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6298 lpfc_cleanup_pending_mbox(vports[i]); 6299 if (phba->sli_rev == LPFC_SLI_REV4) 6300 lpfc_sli4_unreg_all_rpis(vports[i]); 6301 lpfc_mbx_unreg_vpi(vports[i]); 6302 shost = lpfc_shost_from_vport(vports[i]); 6303 spin_lock_irq(shost->host_lock); 6304 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6305 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6306 spin_unlock_irq(shost->host_lock); 6307 } 6308 lpfc_destroy_vport_work_array(phba, vports); 6309 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6310 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6311 if (ndlp) 6312 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6313 lpfc_cleanup_pending_mbox(phba->pport); 6314 if (phba->sli_rev == LPFC_SLI_REV4) 6315 lpfc_sli4_unreg_all_rpis(phba->pport); 6316 lpfc_mbx_unreg_vpi(phba->pport); 6317 shost = lpfc_shost_from_vport(phba->pport); 6318 spin_lock_irq(shost->host_lock); 6319 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6320 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6321 spin_unlock_irq(shost->host_lock); 6322 } 6323 6324 /* Cleanup any outstanding ELS commands */ 6325 lpfc_els_flush_all_cmd(phba); 6326 6327 /* Unregister the physical port VFI */ 6328 rc = lpfc_issue_unreg_vfi(phba->pport); 6329 return rc; 6330 } 6331 6332 /** 6333 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6334 * @phba: Pointer to hba context object. 6335 * 6336 * This function issues synchronous unregister FCF mailbox command to HBA to 6337 * unregister the currently registered FCF record. The driver does not reset 6338 * the driver FCF usage state flags. 6339 * 6340 * Return 0 if successfully issued, none-zero otherwise. 6341 */ 6342 int 6343 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6344 { 6345 LPFC_MBOXQ_t *mbox; 6346 int rc; 6347 6348 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6349 if (!mbox) { 6350 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6351 "2551 UNREG_FCFI mbox allocation failed" 6352 "HBA state x%x\n", phba->pport->port_state); 6353 return -ENOMEM; 6354 } 6355 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6356 mbox->vport = phba->pport; 6357 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6358 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6359 6360 if (rc == MBX_NOT_FINISHED) { 6361 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6362 "2552 Unregister FCFI command failed rc x%x " 6363 "HBA state x%x\n", 6364 rc, phba->pport->port_state); 6365 return -EINVAL; 6366 } 6367 return 0; 6368 } 6369 6370 /** 6371 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6372 * @phba: Pointer to hba context object. 6373 * 6374 * This function unregisters the currently reigstered FCF. This function 6375 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6376 */ 6377 void 6378 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6379 { 6380 int rc; 6381 6382 /* Preparation for unregistering fcf */ 6383 rc = lpfc_unregister_fcf_prep(phba); 6384 if (rc) { 6385 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6386 "2748 Failed to prepare for unregistering " 6387 "HBA's FCF record: rc=%d\n", rc); 6388 return; 6389 } 6390 6391 /* Now, unregister FCF record and reset HBA FCF state */ 6392 rc = lpfc_sli4_unregister_fcf(phba); 6393 if (rc) 6394 return; 6395 /* Reset HBA FCF states after successful unregister FCF */ 6396 phba->fcf.fcf_flag = 0; 6397 phba->fcf.current_rec.flag = 0; 6398 6399 /* 6400 * If driver is not unloading, check if there is any other 6401 * FCF record that can be used for discovery. 6402 */ 6403 if ((phba->pport->load_flag & FC_UNLOADING) || 6404 (phba->link_state < LPFC_LINK_UP)) 6405 return; 6406 6407 /* This is considered as the initial FCF discovery scan */ 6408 spin_lock_irq(&phba->hbalock); 6409 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6410 spin_unlock_irq(&phba->hbalock); 6411 6412 /* Reset FCF roundrobin bmask for new discovery */ 6413 lpfc_sli4_clear_fcf_rr_bmask(phba); 6414 6415 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6416 6417 if (rc) { 6418 spin_lock_irq(&phba->hbalock); 6419 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6420 spin_unlock_irq(&phba->hbalock); 6421 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6422 "2553 lpfc_unregister_unused_fcf failed " 6423 "to read FCF record HBA state x%x\n", 6424 phba->pport->port_state); 6425 } 6426 } 6427 6428 /** 6429 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6430 * @phba: Pointer to hba context object. 6431 * 6432 * This function just unregisters the currently reigstered FCF. It does not 6433 * try to find another FCF for discovery. 6434 */ 6435 void 6436 lpfc_unregister_fcf(struct lpfc_hba *phba) 6437 { 6438 int rc; 6439 6440 /* Preparation for unregistering fcf */ 6441 rc = lpfc_unregister_fcf_prep(phba); 6442 if (rc) { 6443 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6444 "2749 Failed to prepare for unregistering " 6445 "HBA's FCF record: rc=%d\n", rc); 6446 return; 6447 } 6448 6449 /* Now, unregister FCF record and reset HBA FCF state */ 6450 rc = lpfc_sli4_unregister_fcf(phba); 6451 if (rc) 6452 return; 6453 /* Set proper HBA FCF states after successful unregister FCF */ 6454 spin_lock_irq(&phba->hbalock); 6455 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6456 spin_unlock_irq(&phba->hbalock); 6457 } 6458 6459 /** 6460 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6461 * @phba: Pointer to hba context object. 6462 * 6463 * This function check if there are any connected remote port for the FCF and 6464 * if all the devices are disconnected, this function unregister FCFI. 6465 * This function also tries to use another FCF for discovery. 6466 */ 6467 void 6468 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6469 { 6470 /* 6471 * If HBA is not running in FIP mode, if HBA does not support 6472 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6473 * registered, do nothing. 6474 */ 6475 spin_lock_irq(&phba->hbalock); 6476 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6477 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6478 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6479 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6480 (phba->pport->port_state == LPFC_FLOGI)) { 6481 spin_unlock_irq(&phba->hbalock); 6482 return; 6483 } 6484 spin_unlock_irq(&phba->hbalock); 6485 6486 if (lpfc_fcf_inuse(phba)) 6487 return; 6488 6489 lpfc_unregister_fcf_rescan(phba); 6490 } 6491 6492 /** 6493 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6494 * @phba: Pointer to hba context object. 6495 * @buff: Buffer containing the FCF connection table as in the config 6496 * region. 6497 * This function create driver data structure for the FCF connection 6498 * record table read from config region 23. 6499 */ 6500 static void 6501 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6502 uint8_t *buff) 6503 { 6504 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6505 struct lpfc_fcf_conn_hdr *conn_hdr; 6506 struct lpfc_fcf_conn_rec *conn_rec; 6507 uint32_t record_count; 6508 int i; 6509 6510 /* Free the current connect table */ 6511 list_for_each_entry_safe(conn_entry, next_conn_entry, 6512 &phba->fcf_conn_rec_list, list) { 6513 list_del_init(&conn_entry->list); 6514 kfree(conn_entry); 6515 } 6516 6517 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6518 record_count = conn_hdr->length * sizeof(uint32_t)/ 6519 sizeof(struct lpfc_fcf_conn_rec); 6520 6521 conn_rec = (struct lpfc_fcf_conn_rec *) 6522 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6523 6524 for (i = 0; i < record_count; i++) { 6525 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6526 continue; 6527 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6528 GFP_KERNEL); 6529 if (!conn_entry) { 6530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6531 "2566 Failed to allocate connection" 6532 " table entry\n"); 6533 return; 6534 } 6535 6536 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6537 sizeof(struct lpfc_fcf_conn_rec)); 6538 list_add_tail(&conn_entry->list, 6539 &phba->fcf_conn_rec_list); 6540 } 6541 6542 if (!list_empty(&phba->fcf_conn_rec_list)) { 6543 i = 0; 6544 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6545 list) { 6546 conn_rec = &conn_entry->conn_rec; 6547 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6548 "3345 FCF connection list rec[%02d]: " 6549 "flags:x%04x, vtag:x%04x, " 6550 "fabric_name:x%02x:%02x:%02x:%02x:" 6551 "%02x:%02x:%02x:%02x, " 6552 "switch_name:x%02x:%02x:%02x:%02x:" 6553 "%02x:%02x:%02x:%02x\n", i++, 6554 conn_rec->flags, conn_rec->vlan_tag, 6555 conn_rec->fabric_name[0], 6556 conn_rec->fabric_name[1], 6557 conn_rec->fabric_name[2], 6558 conn_rec->fabric_name[3], 6559 conn_rec->fabric_name[4], 6560 conn_rec->fabric_name[5], 6561 conn_rec->fabric_name[6], 6562 conn_rec->fabric_name[7], 6563 conn_rec->switch_name[0], 6564 conn_rec->switch_name[1], 6565 conn_rec->switch_name[2], 6566 conn_rec->switch_name[3], 6567 conn_rec->switch_name[4], 6568 conn_rec->switch_name[5], 6569 conn_rec->switch_name[6], 6570 conn_rec->switch_name[7]); 6571 } 6572 } 6573 } 6574 6575 /** 6576 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6577 * @phba: Pointer to hba context object. 6578 * @buff: Buffer containing the FCoE parameter data structure. 6579 * 6580 * This function update driver data structure with config 6581 * parameters read from config region 23. 6582 */ 6583 static void 6584 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6585 uint8_t *buff) 6586 { 6587 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6588 struct lpfc_fcoe_params *fcoe_param; 6589 6590 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6591 buff; 6592 fcoe_param = (struct lpfc_fcoe_params *) 6593 (buff + sizeof(struct lpfc_fip_param_hdr)); 6594 6595 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6596 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6597 return; 6598 6599 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6600 phba->valid_vlan = 1; 6601 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6602 0xFFF; 6603 } 6604 6605 phba->fc_map[0] = fcoe_param->fc_map[0]; 6606 phba->fc_map[1] = fcoe_param->fc_map[1]; 6607 phba->fc_map[2] = fcoe_param->fc_map[2]; 6608 return; 6609 } 6610 6611 /** 6612 * lpfc_get_rec_conf23 - Get a record type in config region data. 6613 * @buff: Buffer containing config region 23 data. 6614 * @size: Size of the data buffer. 6615 * @rec_type: Record type to be searched. 6616 * 6617 * This function searches config region data to find the beginning 6618 * of the record specified by record_type. If record found, this 6619 * function return pointer to the record else return NULL. 6620 */ 6621 static uint8_t * 6622 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6623 { 6624 uint32_t offset = 0, rec_length; 6625 6626 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6627 (size < sizeof(uint32_t))) 6628 return NULL; 6629 6630 rec_length = buff[offset + 1]; 6631 6632 /* 6633 * One TLV record has one word header and number of data words 6634 * specified in the rec_length field of the record header. 6635 */ 6636 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6637 <= size) { 6638 if (buff[offset] == rec_type) 6639 return &buff[offset]; 6640 6641 if (buff[offset] == LPFC_REGION23_LAST_REC) 6642 return NULL; 6643 6644 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6645 rec_length = buff[offset + 1]; 6646 } 6647 return NULL; 6648 } 6649 6650 /** 6651 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6652 * @phba: Pointer to lpfc_hba data structure. 6653 * @buff: Buffer containing config region 23 data. 6654 * @size: Size of the data buffer. 6655 * 6656 * This function parses the FCoE config parameters in config region 23 and 6657 * populate driver data structure with the parameters. 6658 */ 6659 void 6660 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6661 uint8_t *buff, 6662 uint32_t size) 6663 { 6664 uint32_t offset = 0; 6665 uint8_t *rec_ptr; 6666 6667 /* 6668 * If data size is less than 2 words signature and version cannot be 6669 * verified. 6670 */ 6671 if (size < 2*sizeof(uint32_t)) 6672 return; 6673 6674 /* Check the region signature first */ 6675 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6677 "2567 Config region 23 has bad signature\n"); 6678 return; 6679 } 6680 6681 offset += 4; 6682 6683 /* Check the data structure version */ 6684 if (buff[offset] != LPFC_REGION23_VERSION) { 6685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6686 "2568 Config region 23 has bad version\n"); 6687 return; 6688 } 6689 offset += 4; 6690 6691 /* Read FCoE param record */ 6692 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6693 size - offset, FCOE_PARAM_TYPE); 6694 if (rec_ptr) 6695 lpfc_read_fcoe_param(phba, rec_ptr); 6696 6697 /* Read FCF connection table */ 6698 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6699 size - offset, FCOE_CONN_TBL_TYPE); 6700 if (rec_ptr) 6701 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6702 6703 } 6704