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