1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 #include <scsi/fc/fc_fs.h> 37 38 #include <linux/nvme-fc-driver.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_crtn.h" 51 #include "lpfc_vport.h" 52 #include "lpfc_debugfs.h" 53 54 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 55 static uint8_t lpfcAlpaArray[] = { 56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 69 }; 70 71 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 72 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 74 static int lpfc_fcf_inuse(struct lpfc_hba *); 75 76 void 77 lpfc_terminate_rport_io(struct fc_rport *rport) 78 { 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105 } 106 107 /* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110 void 111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112 { 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 122 rdata = rport->dd_data; 123 ndlp = rdata->pnode; 124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 125 return; 126 127 vport = ndlp->vport; 128 phba = vport->phba; 129 130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 131 "rport devlosscb: sid:x%x did:x%x flg:x%x", 132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 133 134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 137 138 /* Don't defer this if we are in the process of deleting the vport 139 * or unloading the driver. The unload will cleanup the node 140 * appropriately we just need to cleanup the ndlp rport info here. 141 */ 142 if (vport->load_flag & FC_UNLOADING) { 143 put_node = rdata->pnode != NULL; 144 put_rport = ndlp->rport != NULL; 145 rdata->pnode = NULL; 146 ndlp->rport = NULL; 147 if (put_node) 148 lpfc_nlp_put(ndlp); 149 if (put_rport) 150 put_device(&rport->dev); 151 return; 152 } 153 154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 155 return; 156 157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 159 "6789 rport name %llx != node port name %llx", 160 rport->port_name, 161 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 162 163 evtp = &ndlp->dev_loss_evt; 164 165 if (!list_empty(&evtp->evt_listp)) { 166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 167 "6790 rport name %llx dev_loss_evt pending", 168 rport->port_name); 169 return; 170 } 171 172 shost = lpfc_shost_from_vport(vport); 173 spin_lock_irq(shost->host_lock); 174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 175 spin_unlock_irq(shost->host_lock); 176 177 /* We need to hold the node by incrementing the reference 178 * count until this queued work is done 179 */ 180 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 181 182 spin_lock_irq(&phba->hbalock); 183 if (evtp->evt_arg1) { 184 evtp->evt = LPFC_EVT_DEV_LOSS; 185 list_add_tail(&evtp->evt_listp, &phba->work_list); 186 lpfc_worker_wake_up(phba); 187 } 188 spin_unlock_irq(&phba->hbalock); 189 190 return; 191 } 192 193 /** 194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 195 * @ndlp: Pointer to remote node object. 196 * 197 * This function is called from the worker thread when devloss timeout timer 198 * expires. For SLI4 host, this routine shall return 1 when at lease one 199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 200 * routine shall return 0 when there is no remote node is still in use of FCF 201 * when devloss timeout happened to this @ndlp. 202 **/ 203 static int 204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 205 { 206 struct lpfc_rport_data *rdata; 207 struct fc_rport *rport; 208 struct lpfc_vport *vport; 209 struct lpfc_hba *phba; 210 struct Scsi_Host *shost; 211 uint8_t *name; 212 int put_node; 213 int warn_on = 0; 214 int fcf_inuse = 0; 215 216 rport = ndlp->rport; 217 vport = ndlp->vport; 218 shost = lpfc_shost_from_vport(vport); 219 220 spin_lock_irq(shost->host_lock); 221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 222 spin_unlock_irq(shost->host_lock); 223 224 if (!rport) 225 return fcf_inuse; 226 227 name = (uint8_t *) &ndlp->nlp_portname; 228 phba = vport->phba; 229 230 if (phba->sli_rev == LPFC_SLI_REV4) 231 fcf_inuse = lpfc_fcf_inuse(phba); 232 233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 234 "rport devlosstmo:did:x%x type:x%x id:x%x", 235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 236 237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 240 241 /* 242 * lpfc_nlp_remove if reached with dangling rport drops the 243 * reference. To make sure that does not happen clear rport 244 * pointer in ndlp before lpfc_nlp_put. 245 */ 246 rdata = rport->dd_data; 247 248 /* Don't defer this if we are in the process of deleting the vport 249 * or unloading the driver. The unload will cleanup the node 250 * appropriately we just need to cleanup the ndlp rport info here. 251 */ 252 if (vport->load_flag & FC_UNLOADING) { 253 if (ndlp->nlp_sid != NLP_NO_SID) { 254 /* flush the target */ 255 lpfc_sli_abort_iocb(vport, 256 &phba->sli.sli3_ring[LPFC_FCP_RING], 257 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 258 } 259 put_node = rdata->pnode != NULL; 260 rdata->pnode = NULL; 261 ndlp->rport = NULL; 262 if (put_node) 263 lpfc_nlp_put(ndlp); 264 put_device(&rport->dev); 265 266 return fcf_inuse; 267 } 268 269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 271 "0284 Devloss timeout Ignored on " 272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 273 "NPort x%x\n", 274 *name, *(name+1), *(name+2), *(name+3), 275 *(name+4), *(name+5), *(name+6), *(name+7), 276 ndlp->nlp_DID); 277 return fcf_inuse; 278 } 279 280 put_node = rdata->pnode != NULL; 281 rdata->pnode = NULL; 282 ndlp->rport = NULL; 283 if (put_node) 284 lpfc_nlp_put(ndlp); 285 put_device(&rport->dev); 286 287 if (ndlp->nlp_type & NLP_FABRIC) 288 return fcf_inuse; 289 290 if (ndlp->nlp_sid != NLP_NO_SID) { 291 warn_on = 1; 292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 293 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 294 } 295 296 if (warn_on) { 297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 298 "0203 Devloss timeout on " 299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 300 "NPort x%06x Data: x%x x%x x%x\n", 301 *name, *(name+1), *(name+2), *(name+3), 302 *(name+4), *(name+5), *(name+6), *(name+7), 303 ndlp->nlp_DID, ndlp->nlp_flag, 304 ndlp->nlp_state, ndlp->nlp_rpi); 305 } else { 306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 307 "0204 Devloss timeout on " 308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 309 "NPort x%06x Data: x%x x%x x%x\n", 310 *name, *(name+1), *(name+2), *(name+3), 311 *(name+4), *(name+5), *(name+6), *(name+7), 312 ndlp->nlp_DID, ndlp->nlp_flag, 313 ndlp->nlp_state, ndlp->nlp_rpi); 314 } 315 316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 322 323 return fcf_inuse; 324 } 325 326 /** 327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 328 * @phba: Pointer to hba context object. 329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 330 * @nlp_did: remote node identifer with devloss timeout. 331 * 332 * This function is called from the worker thread after invoking devloss 333 * timeout handler and releasing the reference count for the ndlp with 334 * which the devloss timeout was handled for SLI4 host. For the devloss 335 * timeout of the last remote node which had been in use of FCF, when this 336 * routine is invoked, it shall be guaranteed that none of the remote are 337 * in-use of FCF. When devloss timeout to the last remote using the FCF, 338 * if the FIP engine is neither in FCF table scan process nor roundrobin 339 * failover process, the in-use FCF shall be unregistered. If the FIP 340 * engine is in FCF discovery process, the devloss timeout state shall 341 * be set for either the FCF table scan process or roundrobin failover 342 * process to unregister the in-use FCF. 343 **/ 344 static void 345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 346 uint32_t nlp_did) 347 { 348 /* If devloss timeout happened to a remote node when FCF had no 349 * longer been in-use, do nothing. 350 */ 351 if (!fcf_inuse) 352 return; 353 354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 355 spin_lock_irq(&phba->hbalock); 356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 357 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 358 spin_unlock_irq(&phba->hbalock); 359 return; 360 } 361 phba->hba_flag |= HBA_DEVLOSS_TMO; 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2847 Last remote node (x%x) using " 364 "FCF devloss tmo\n", nlp_did); 365 } 366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 367 spin_unlock_irq(&phba->hbalock); 368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 369 "2868 Devloss tmo to FCF rediscovery " 370 "in progress\n"); 371 return; 372 } 373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 374 spin_unlock_irq(&phba->hbalock); 375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 376 "2869 Devloss tmo to idle FIP engine, " 377 "unreg in-use FCF and rescan.\n"); 378 /* Unregister in-use FCF and rescan */ 379 lpfc_unregister_fcf_rescan(phba); 380 return; 381 } 382 spin_unlock_irq(&phba->hbalock); 383 if (phba->hba_flag & FCF_TS_INPROG) 384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 385 "2870 FCF table scan in progress\n"); 386 if (phba->hba_flag & FCF_RR_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2871 FLOGI roundrobin FCF failover " 389 "in progress\n"); 390 } 391 lpfc_unregister_unused_fcf(phba); 392 } 393 394 /** 395 * lpfc_alloc_fast_evt - Allocates data structure for posting event 396 * @phba: Pointer to hba context object. 397 * 398 * This function is called from the functions which need to post 399 * events from interrupt context. This function allocates data 400 * structure required for posting event. It also keeps track of 401 * number of events pending and prevent event storm when there are 402 * too many events. 403 **/ 404 struct lpfc_fast_path_event * 405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 406 struct lpfc_fast_path_event *ret; 407 408 /* If there are lot of fast event do not exhaust memory due to this */ 409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 410 return NULL; 411 412 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 413 GFP_ATOMIC); 414 if (ret) { 415 atomic_inc(&phba->fast_event_count); 416 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 418 } 419 return ret; 420 } 421 422 /** 423 * lpfc_free_fast_evt - Frees event data structure 424 * @phba: Pointer to hba context object. 425 * @evt: Event object which need to be freed. 426 * 427 * This function frees the data structure required for posting 428 * events. 429 **/ 430 void 431 lpfc_free_fast_evt(struct lpfc_hba *phba, 432 struct lpfc_fast_path_event *evt) { 433 434 atomic_dec(&phba->fast_event_count); 435 kfree(evt); 436 } 437 438 /** 439 * lpfc_send_fastpath_evt - Posts events generated from fast path 440 * @phba: Pointer to hba context object. 441 * @evtp: Event data structure. 442 * 443 * This function is called from worker thread, when the interrupt 444 * context need to post an event. This function posts the event 445 * to fc transport netlink interface. 446 **/ 447 static void 448 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 449 struct lpfc_work_evt *evtp) 450 { 451 unsigned long evt_category, evt_sub_category; 452 struct lpfc_fast_path_event *fast_evt_data; 453 char *evt_data; 454 uint32_t evt_data_size; 455 struct Scsi_Host *shost; 456 457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 458 work_evt); 459 460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 461 evt_sub_category = (unsigned long) fast_evt_data->un. 462 fabric_evt.subcategory; 463 shost = lpfc_shost_from_vport(fast_evt_data->vport); 464 if (evt_category == FC_REG_FABRIC_EVENT) { 465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 466 evt_data = (char *) &fast_evt_data->un.read_check_error; 467 evt_data_size = sizeof(fast_evt_data->un. 468 read_check_error); 469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 471 evt_data = (char *) &fast_evt_data->un.fabric_evt; 472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 473 } else { 474 lpfc_free_fast_evt(phba, fast_evt_data); 475 return; 476 } 477 } else if (evt_category == FC_REG_SCSI_EVENT) { 478 switch (evt_sub_category) { 479 case LPFC_EVENT_QFULL: 480 case LPFC_EVENT_DEVBSY: 481 evt_data = (char *) &fast_evt_data->un.scsi_evt; 482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 483 break; 484 case LPFC_EVENT_CHECK_COND: 485 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 check_cond_evt); 488 break; 489 case LPFC_EVENT_VARQUEDEPTH: 490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 491 evt_data_size = sizeof(fast_evt_data->un. 492 queue_depth_evt); 493 break; 494 default: 495 lpfc_free_fast_evt(phba, fast_evt_data); 496 return; 497 } 498 } else { 499 lpfc_free_fast_evt(phba, fast_evt_data); 500 return; 501 } 502 503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 504 fc_host_post_vendor_event(shost, 505 fc_get_event_number(), 506 evt_data_size, 507 evt_data, 508 LPFC_NL_VENDOR_ID); 509 510 lpfc_free_fast_evt(phba, fast_evt_data); 511 return; 512 } 513 514 static void 515 lpfc_work_list_done(struct lpfc_hba *phba) 516 { 517 struct lpfc_work_evt *evtp = NULL; 518 struct lpfc_nodelist *ndlp; 519 int free_evt; 520 int fcf_inuse; 521 uint32_t nlp_did; 522 523 spin_lock_irq(&phba->hbalock); 524 while (!list_empty(&phba->work_list)) { 525 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 526 evt_listp); 527 spin_unlock_irq(&phba->hbalock); 528 free_evt = 1; 529 switch (evtp->evt) { 530 case LPFC_EVT_ELS_RETRY: 531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 532 lpfc_els_retry_delay_handler(ndlp); 533 free_evt = 0; /* evt is part of ndlp */ 534 /* decrement the node reference count held 535 * for this queued work 536 */ 537 lpfc_nlp_put(ndlp); 538 break; 539 case LPFC_EVT_DEV_LOSS: 540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 542 free_evt = 0; 543 /* decrement the node reference count held for 544 * this queued work 545 */ 546 nlp_did = ndlp->nlp_DID; 547 lpfc_nlp_put(ndlp); 548 if (phba->sli_rev == LPFC_SLI_REV4) 549 lpfc_sli4_post_dev_loss_tmo_handler(phba, 550 fcf_inuse, 551 nlp_did); 552 break; 553 case LPFC_EVT_ONLINE: 554 if (phba->link_state < LPFC_LINK_DOWN) 555 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 556 else 557 *(int *) (evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE_PREP: 561 if (phba->link_state >= LPFC_LINK_DOWN) 562 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 563 *(int *)(evtp->evt_arg1) = 0; 564 complete((struct completion *)(evtp->evt_arg2)); 565 break; 566 case LPFC_EVT_OFFLINE: 567 lpfc_offline(phba); 568 lpfc_sli_brdrestart(phba); 569 *(int *)(evtp->evt_arg1) = 570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 571 lpfc_unblock_mgmt_io(phba); 572 complete((struct completion *)(evtp->evt_arg2)); 573 break; 574 case LPFC_EVT_WARM_START: 575 lpfc_offline(phba); 576 lpfc_reset_barrier(phba); 577 lpfc_sli_brdreset(phba); 578 lpfc_hba_down_post(phba); 579 *(int *)(evtp->evt_arg1) = 580 lpfc_sli_brdready(phba, HS_MBRDY); 581 lpfc_unblock_mgmt_io(phba); 582 complete((struct completion *)(evtp->evt_arg2)); 583 break; 584 case LPFC_EVT_KILL: 585 lpfc_offline(phba); 586 *(int *)(evtp->evt_arg1) 587 = (phba->pport->stopped) 588 ? 0 : lpfc_sli_brdkill(phba); 589 lpfc_unblock_mgmt_io(phba); 590 complete((struct completion *)(evtp->evt_arg2)); 591 break; 592 case LPFC_EVT_FASTPATH_MGMT_EVT: 593 lpfc_send_fastpath_evt(phba, evtp); 594 free_evt = 0; 595 break; 596 case LPFC_EVT_RESET_HBA: 597 if (!(phba->pport->load_flag & FC_UNLOADING)) 598 lpfc_reset_hba(phba); 599 break; 600 } 601 if (free_evt) 602 kfree(evtp); 603 spin_lock_irq(&phba->hbalock); 604 } 605 spin_unlock_irq(&phba->hbalock); 606 607 } 608 609 static void 610 lpfc_work_done(struct lpfc_hba *phba) 611 { 612 struct lpfc_sli_ring *pring; 613 uint32_t ha_copy, status, control, work_port_events; 614 struct lpfc_vport **vports; 615 struct lpfc_vport *vport; 616 int i; 617 618 spin_lock_irq(&phba->hbalock); 619 ha_copy = phba->work_ha; 620 phba->work_ha = 0; 621 spin_unlock_irq(&phba->hbalock); 622 623 /* First, try to post the next mailbox command to SLI4 device */ 624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 625 lpfc_sli4_post_async_mbox(phba); 626 627 if (ha_copy & HA_ERATT) 628 /* Handle the error attention event */ 629 lpfc_handle_eratt(phba); 630 631 if (ha_copy & HA_MBATT) 632 lpfc_sli_handle_mb_event(phba); 633 634 if (ha_copy & HA_LATT) 635 lpfc_handle_latt(phba); 636 637 /* Process SLI4 events */ 638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 639 if (phba->hba_flag & HBA_RRQ_ACTIVE) 640 lpfc_handle_rrq_active(phba); 641 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 642 lpfc_sli4_els_xri_abort_event_proc(phba); 643 if (phba->hba_flag & ASYNC_EVENT) 644 lpfc_sli4_async_event_proc(phba); 645 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 646 spin_lock_irq(&phba->hbalock); 647 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 648 spin_unlock_irq(&phba->hbalock); 649 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 650 } 651 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 652 lpfc_sli4_fcf_redisc_event_proc(phba); 653 } 654 655 vports = lpfc_create_vport_work_array(phba); 656 if (vports != NULL) 657 for (i = 0; i <= phba->max_vports; i++) { 658 /* 659 * We could have no vports in array if unloading, so if 660 * this happens then just use the pport 661 */ 662 if (vports[i] == NULL && i == 0) 663 vport = phba->pport; 664 else 665 vport = vports[i]; 666 if (vport == NULL) 667 break; 668 spin_lock_irq(&vport->work_port_lock); 669 work_port_events = vport->work_port_events; 670 vport->work_port_events &= ~work_port_events; 671 spin_unlock_irq(&vport->work_port_lock); 672 if (work_port_events & WORKER_DISC_TMO) 673 lpfc_disc_timeout_handler(vport); 674 if (work_port_events & WORKER_ELS_TMO) 675 lpfc_els_timeout_handler(vport); 676 if (work_port_events & WORKER_HB_TMO) 677 lpfc_hb_timeout_handler(phba); 678 if (work_port_events & WORKER_MBOX_TMO) 679 lpfc_mbox_timeout_handler(phba); 680 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 681 lpfc_unblock_fabric_iocbs(phba); 682 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 683 lpfc_ramp_down_queue_handler(phba); 684 if (work_port_events & WORKER_DELAYED_DISC_TMO) 685 lpfc_delayed_disc_timeout_handler(vport); 686 } 687 lpfc_destroy_vport_work_array(phba, vports); 688 689 pring = lpfc_phba_elsring(phba); 690 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 691 status >>= (4*LPFC_ELS_RING); 692 if (pring && (status & HA_RXMASK || 693 pring->flag & LPFC_DEFERRED_RING_EVENT || 694 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 695 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 696 pring->flag |= LPFC_DEFERRED_RING_EVENT; 697 /* Preserve legacy behavior. */ 698 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 699 set_bit(LPFC_DATA_READY, &phba->data_flags); 700 } else { 701 if (phba->link_state >= LPFC_LINK_UP || 702 phba->link_flag & LS_MDS_LOOPBACK) { 703 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 704 lpfc_sli_handle_slow_ring_event(phba, pring, 705 (status & 706 HA_RXMASK)); 707 } 708 } 709 if (phba->sli_rev == LPFC_SLI_REV4) 710 lpfc_drain_txq(phba); 711 /* 712 * Turn on Ring interrupts 713 */ 714 if (phba->sli_rev <= LPFC_SLI_REV3) { 715 spin_lock_irq(&phba->hbalock); 716 control = readl(phba->HCregaddr); 717 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 718 lpfc_debugfs_slow_ring_trc(phba, 719 "WRK Enable ring: cntl:x%x hacopy:x%x", 720 control, ha_copy, 0); 721 722 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 723 writel(control, phba->HCregaddr); 724 readl(phba->HCregaddr); /* flush */ 725 } else { 726 lpfc_debugfs_slow_ring_trc(phba, 727 "WRK Ring ok: cntl:x%x hacopy:x%x", 728 control, ha_copy, 0); 729 } 730 spin_unlock_irq(&phba->hbalock); 731 } 732 } 733 lpfc_work_list_done(phba); 734 } 735 736 int 737 lpfc_do_work(void *p) 738 { 739 struct lpfc_hba *phba = p; 740 int rc; 741 742 set_user_nice(current, MIN_NICE); 743 current->flags |= PF_NOFREEZE; 744 phba->data_flags = 0; 745 746 while (!kthread_should_stop()) { 747 /* wait and check worker queue activities */ 748 rc = wait_event_interruptible(phba->work_waitq, 749 (test_and_clear_bit(LPFC_DATA_READY, 750 &phba->data_flags) 751 || kthread_should_stop())); 752 /* Signal wakeup shall terminate the worker thread */ 753 if (rc) { 754 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 755 "0433 Wakeup on signal: rc=x%x\n", rc); 756 break; 757 } 758 759 /* Attend pending lpfc data processing */ 760 lpfc_work_done(phba); 761 } 762 phba->worker_thread = NULL; 763 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 764 "0432 Worker thread stopped.\n"); 765 return 0; 766 } 767 768 /* 769 * This is only called to handle FC worker events. Since this a rare 770 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 771 * embedding it in the IOCB. 772 */ 773 int 774 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 775 uint32_t evt) 776 { 777 struct lpfc_work_evt *evtp; 778 unsigned long flags; 779 780 /* 781 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 782 * be queued to worker thread for processing 783 */ 784 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 785 if (!evtp) 786 return 0; 787 788 evtp->evt_arg1 = arg1; 789 evtp->evt_arg2 = arg2; 790 evtp->evt = evt; 791 792 spin_lock_irqsave(&phba->hbalock, flags); 793 list_add_tail(&evtp->evt_listp, &phba->work_list); 794 spin_unlock_irqrestore(&phba->hbalock, flags); 795 796 lpfc_worker_wake_up(phba); 797 798 return 1; 799 } 800 801 void 802 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 803 { 804 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 805 struct lpfc_hba *phba = vport->phba; 806 struct lpfc_nodelist *ndlp, *next_ndlp; 807 808 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 809 if (!NLP_CHK_NODE_ACT(ndlp)) 810 continue; 811 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 812 continue; 813 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 814 ((vport->port_type == LPFC_NPIV_PORT) && 815 (ndlp->nlp_DID == NameServer_DID))) 816 lpfc_unreg_rpi(vport, ndlp); 817 818 /* Leave Fabric nodes alone on link down */ 819 if ((phba->sli_rev < LPFC_SLI_REV4) && 820 (!remove && ndlp->nlp_type & NLP_FABRIC)) 821 continue; 822 lpfc_disc_state_machine(vport, ndlp, NULL, 823 remove 824 ? NLP_EVT_DEVICE_RM 825 : NLP_EVT_DEVICE_RECOVERY); 826 } 827 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 828 if (phba->sli_rev == LPFC_SLI_REV4) 829 lpfc_sli4_unreg_all_rpis(vport); 830 lpfc_mbx_unreg_vpi(vport); 831 spin_lock_irq(shost->host_lock); 832 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 833 spin_unlock_irq(shost->host_lock); 834 } 835 } 836 837 void 838 lpfc_port_link_failure(struct lpfc_vport *vport) 839 { 840 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 841 842 /* Cleanup any outstanding received buffers */ 843 lpfc_cleanup_rcv_buffers(vport); 844 845 /* Cleanup any outstanding RSCN activity */ 846 lpfc_els_flush_rscn(vport); 847 848 /* Cleanup any outstanding ELS commands */ 849 lpfc_els_flush_cmd(vport); 850 851 lpfc_cleanup_rpis(vport, 0); 852 853 /* Turn off discovery timer if its running */ 854 lpfc_can_disctmo(vport); 855 } 856 857 void 858 lpfc_linkdown_port(struct lpfc_vport *vport) 859 { 860 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 861 862 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 863 fc_host_post_event(shost, fc_get_event_number(), 864 FCH_EVT_LINKDOWN, 0); 865 866 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 867 "Link Down: state:x%x rtry:x%x flg:x%x", 868 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 869 870 lpfc_port_link_failure(vport); 871 872 /* Stop delayed Nport discovery */ 873 spin_lock_irq(shost->host_lock); 874 vport->fc_flag &= ~FC_DISC_DELAYED; 875 spin_unlock_irq(shost->host_lock); 876 del_timer_sync(&vport->delayed_disc_tmo); 877 } 878 879 int 880 lpfc_linkdown(struct lpfc_hba *phba) 881 { 882 struct lpfc_vport *vport = phba->pport; 883 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 884 struct lpfc_vport **vports; 885 LPFC_MBOXQ_t *mb; 886 int i; 887 888 if (phba->link_state == LPFC_LINK_DOWN) { 889 if (phba->sli4_hba.conf_trunk) { 890 phba->trunk_link.link0.state = 0; 891 phba->trunk_link.link1.state = 0; 892 phba->trunk_link.link2.state = 0; 893 phba->trunk_link.link3.state = 0; 894 } 895 return 0; 896 } 897 /* Block all SCSI stack I/Os */ 898 lpfc_scsi_dev_block(phba); 899 900 phba->defer_flogi_acc_flag = false; 901 902 spin_lock_irq(&phba->hbalock); 903 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 904 spin_unlock_irq(&phba->hbalock); 905 if (phba->link_state > LPFC_LINK_DOWN) { 906 phba->link_state = LPFC_LINK_DOWN; 907 if (phba->sli4_hba.conf_trunk) { 908 phba->trunk_link.link0.state = 0; 909 phba->trunk_link.link1.state = 0; 910 phba->trunk_link.link2.state = 0; 911 phba->trunk_link.link3.state = 0; 912 } 913 spin_lock_irq(shost->host_lock); 914 phba->pport->fc_flag &= ~FC_LBIT; 915 spin_unlock_irq(shost->host_lock); 916 } 917 vports = lpfc_create_vport_work_array(phba); 918 if (vports != NULL) { 919 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 920 /* Issue a LINK DOWN event to all nodes */ 921 lpfc_linkdown_port(vports[i]); 922 923 vports[i]->fc_myDID = 0; 924 925 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 926 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 927 if (phba->nvmet_support) 928 lpfc_nvmet_update_targetport(phba); 929 else 930 lpfc_nvme_update_localport(vports[i]); 931 } 932 } 933 } 934 lpfc_destroy_vport_work_array(phba, vports); 935 /* Clean up any firmware default rpi's */ 936 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 937 if (mb) { 938 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 939 mb->vport = vport; 940 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 941 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 942 == MBX_NOT_FINISHED) { 943 mempool_free(mb, phba->mbox_mem_pool); 944 } 945 } 946 947 /* Setup myDID for link up if we are in pt2pt mode */ 948 if (phba->pport->fc_flag & FC_PT2PT) { 949 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 950 if (mb) { 951 lpfc_config_link(phba, mb); 952 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 953 mb->vport = vport; 954 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 955 == MBX_NOT_FINISHED) { 956 mempool_free(mb, phba->mbox_mem_pool); 957 } 958 } 959 spin_lock_irq(shost->host_lock); 960 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 961 phba->pport->rcv_flogi_cnt = 0; 962 spin_unlock_irq(shost->host_lock); 963 } 964 return 0; 965 } 966 967 static void 968 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 969 { 970 struct lpfc_nodelist *ndlp; 971 972 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 973 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 974 if (!NLP_CHK_NODE_ACT(ndlp)) 975 continue; 976 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 977 continue; 978 if (ndlp->nlp_type & NLP_FABRIC) { 979 /* On Linkup its safe to clean up the ndlp 980 * from Fabric connections. 981 */ 982 if (ndlp->nlp_DID != Fabric_DID) 983 lpfc_unreg_rpi(vport, ndlp); 984 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 985 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 986 /* Fail outstanding IO now since device is 987 * marked for PLOGI. 988 */ 989 lpfc_unreg_rpi(vport, ndlp); 990 } 991 } 992 } 993 994 static void 995 lpfc_linkup_port(struct lpfc_vport *vport) 996 { 997 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 998 struct lpfc_hba *phba = vport->phba; 999 1000 if ((vport->load_flag & FC_UNLOADING) != 0) 1001 return; 1002 1003 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1004 "Link Up: top:x%x speed:x%x flg:x%x", 1005 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1006 1007 /* If NPIV is not enabled, only bring the physical port up */ 1008 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1009 (vport != phba->pport)) 1010 return; 1011 1012 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1013 fc_host_post_event(shost, fc_get_event_number(), 1014 FCH_EVT_LINKUP, 0); 1015 1016 spin_lock_irq(shost->host_lock); 1017 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1018 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1019 vport->fc_flag |= FC_NDISC_ACTIVE; 1020 vport->fc_ns_retry = 0; 1021 spin_unlock_irq(shost->host_lock); 1022 1023 if (vport->fc_flag & FC_LBIT) 1024 lpfc_linkup_cleanup_nodes(vport); 1025 1026 } 1027 1028 static int 1029 lpfc_linkup(struct lpfc_hba *phba) 1030 { 1031 struct lpfc_vport **vports; 1032 int i; 1033 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1034 1035 phba->link_state = LPFC_LINK_UP; 1036 1037 /* Unblock fabric iocbs if they are blocked */ 1038 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1039 del_timer_sync(&phba->fabric_block_timer); 1040 1041 vports = lpfc_create_vport_work_array(phba); 1042 if (vports != NULL) 1043 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1044 lpfc_linkup_port(vports[i]); 1045 lpfc_destroy_vport_work_array(phba, vports); 1046 1047 /* Clear the pport flogi counter in case the link down was 1048 * absorbed without an ACQE. No lock here - in worker thread 1049 * and discovery is synchronized. 1050 */ 1051 spin_lock_irq(shost->host_lock); 1052 phba->pport->rcv_flogi_cnt = 0; 1053 spin_unlock_irq(shost->host_lock); 1054 1055 /* reinitialize initial FLOGI flag */ 1056 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1057 phba->defer_flogi_acc_flag = false; 1058 1059 return 0; 1060 } 1061 1062 /* 1063 * This routine handles processing a CLEAR_LA mailbox 1064 * command upon completion. It is setup in the LPFC_MBOXQ 1065 * as the completion routine when the command is 1066 * handed off to the SLI layer. SLI3 only. 1067 */ 1068 static void 1069 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1070 { 1071 struct lpfc_vport *vport = pmb->vport; 1072 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1073 struct lpfc_sli *psli = &phba->sli; 1074 MAILBOX_t *mb = &pmb->u.mb; 1075 uint32_t control; 1076 1077 /* Since we don't do discovery right now, turn these off here */ 1078 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1079 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1080 1081 /* Check for error */ 1082 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1083 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1084 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1085 "0320 CLEAR_LA mbxStatus error x%x hba " 1086 "state x%x\n", 1087 mb->mbxStatus, vport->port_state); 1088 phba->link_state = LPFC_HBA_ERROR; 1089 goto out; 1090 } 1091 1092 if (vport->port_type == LPFC_PHYSICAL_PORT) 1093 phba->link_state = LPFC_HBA_READY; 1094 1095 spin_lock_irq(&phba->hbalock); 1096 psli->sli_flag |= LPFC_PROCESS_LA; 1097 control = readl(phba->HCregaddr); 1098 control |= HC_LAINT_ENA; 1099 writel(control, phba->HCregaddr); 1100 readl(phba->HCregaddr); /* flush */ 1101 spin_unlock_irq(&phba->hbalock); 1102 mempool_free(pmb, phba->mbox_mem_pool); 1103 return; 1104 1105 out: 1106 /* Device Discovery completes */ 1107 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1108 "0225 Device Discovery completes\n"); 1109 mempool_free(pmb, phba->mbox_mem_pool); 1110 1111 spin_lock_irq(shost->host_lock); 1112 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1113 spin_unlock_irq(shost->host_lock); 1114 1115 lpfc_can_disctmo(vport); 1116 1117 /* turn on Link Attention interrupts */ 1118 1119 spin_lock_irq(&phba->hbalock); 1120 psli->sli_flag |= LPFC_PROCESS_LA; 1121 control = readl(phba->HCregaddr); 1122 control |= HC_LAINT_ENA; 1123 writel(control, phba->HCregaddr); 1124 readl(phba->HCregaddr); /* flush */ 1125 spin_unlock_irq(&phba->hbalock); 1126 1127 return; 1128 } 1129 1130 1131 void 1132 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1133 { 1134 struct lpfc_vport *vport = pmb->vport; 1135 uint8_t bbscn = 0; 1136 1137 if (pmb->u.mb.mbxStatus) 1138 goto out; 1139 1140 mempool_free(pmb, phba->mbox_mem_pool); 1141 1142 /* don't perform discovery for SLI4 loopback diagnostic test */ 1143 if ((phba->sli_rev == LPFC_SLI_REV4) && 1144 !(phba->hba_flag & HBA_FCOE_MODE) && 1145 (phba->link_flag & LS_LOOPBACK_MODE)) 1146 return; 1147 1148 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1149 vport->fc_flag & FC_PUBLIC_LOOP && 1150 !(vport->fc_flag & FC_LBIT)) { 1151 /* Need to wait for FAN - use discovery timer 1152 * for timeout. port_state is identically 1153 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1154 */ 1155 lpfc_set_disctmo(vport); 1156 return; 1157 } 1158 1159 /* Start discovery by sending a FLOGI. port_state is identically 1160 * LPFC_FLOGI while waiting for FLOGI cmpl 1161 */ 1162 if (vport->port_state != LPFC_FLOGI) { 1163 if (phba->bbcredit_support && phba->cfg_enable_bbcr) { 1164 bbscn = bf_get(lpfc_bbscn_def, 1165 &phba->sli4_hba.bbscn_params); 1166 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 1167 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); 1168 } 1169 lpfc_initial_flogi(vport); 1170 } else if (vport->fc_flag & FC_PT2PT) { 1171 lpfc_disc_start(vport); 1172 } 1173 return; 1174 1175 out: 1176 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1177 "0306 CONFIG_LINK mbxStatus error x%x " 1178 "HBA state x%x\n", 1179 pmb->u.mb.mbxStatus, vport->port_state); 1180 mempool_free(pmb, phba->mbox_mem_pool); 1181 1182 lpfc_linkdown(phba); 1183 1184 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1185 "0200 CONFIG_LINK bad hba state x%x\n", 1186 vport->port_state); 1187 1188 lpfc_issue_clear_la(phba, vport); 1189 return; 1190 } 1191 1192 /** 1193 * lpfc_sli4_clear_fcf_rr_bmask 1194 * @phba pointer to the struct lpfc_hba for this port. 1195 * This fucnction resets the round robin bit mask and clears the 1196 * fcf priority list. The list deletions are done while holding the 1197 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1198 * from the lpfc_fcf_pri record. 1199 **/ 1200 void 1201 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1202 { 1203 struct lpfc_fcf_pri *fcf_pri; 1204 struct lpfc_fcf_pri *next_fcf_pri; 1205 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1206 spin_lock_irq(&phba->hbalock); 1207 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1208 &phba->fcf.fcf_pri_list, list) { 1209 list_del_init(&fcf_pri->list); 1210 fcf_pri->fcf_rec.flag = 0; 1211 } 1212 spin_unlock_irq(&phba->hbalock); 1213 } 1214 static void 1215 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1216 { 1217 struct lpfc_vport *vport = mboxq->vport; 1218 1219 if (mboxq->u.mb.mbxStatus) { 1220 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1221 "2017 REG_FCFI mbxStatus error x%x " 1222 "HBA state x%x\n", 1223 mboxq->u.mb.mbxStatus, vport->port_state); 1224 goto fail_out; 1225 } 1226 1227 /* Start FCoE discovery by sending a FLOGI. */ 1228 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1229 /* Set the FCFI registered flag */ 1230 spin_lock_irq(&phba->hbalock); 1231 phba->fcf.fcf_flag |= FCF_REGISTERED; 1232 spin_unlock_irq(&phba->hbalock); 1233 1234 /* If there is a pending FCoE event, restart FCF table scan. */ 1235 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1236 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1237 goto fail_out; 1238 1239 /* Mark successful completion of FCF table scan */ 1240 spin_lock_irq(&phba->hbalock); 1241 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1242 phba->hba_flag &= ~FCF_TS_INPROG; 1243 if (vport->port_state != LPFC_FLOGI) { 1244 phba->hba_flag |= FCF_RR_INPROG; 1245 spin_unlock_irq(&phba->hbalock); 1246 lpfc_issue_init_vfi(vport); 1247 goto out; 1248 } 1249 spin_unlock_irq(&phba->hbalock); 1250 goto out; 1251 1252 fail_out: 1253 spin_lock_irq(&phba->hbalock); 1254 phba->hba_flag &= ~FCF_RR_INPROG; 1255 spin_unlock_irq(&phba->hbalock); 1256 out: 1257 mempool_free(mboxq, phba->mbox_mem_pool); 1258 } 1259 1260 /** 1261 * lpfc_fab_name_match - Check if the fcf fabric name match. 1262 * @fab_name: pointer to fabric name. 1263 * @new_fcf_record: pointer to fcf record. 1264 * 1265 * This routine compare the fcf record's fabric name with provided 1266 * fabric name. If the fabric name are identical this function 1267 * returns 1 else return 0. 1268 **/ 1269 static uint32_t 1270 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1271 { 1272 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1273 return 0; 1274 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1275 return 0; 1276 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1277 return 0; 1278 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1279 return 0; 1280 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1281 return 0; 1282 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1283 return 0; 1284 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1285 return 0; 1286 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1287 return 0; 1288 return 1; 1289 } 1290 1291 /** 1292 * lpfc_sw_name_match - Check if the fcf switch name match. 1293 * @fab_name: pointer to fabric name. 1294 * @new_fcf_record: pointer to fcf record. 1295 * 1296 * This routine compare the fcf record's switch name with provided 1297 * switch name. If the switch name are identical this function 1298 * returns 1 else return 0. 1299 **/ 1300 static uint32_t 1301 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1302 { 1303 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1304 return 0; 1305 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1306 return 0; 1307 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1308 return 0; 1309 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1310 return 0; 1311 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1312 return 0; 1313 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1314 return 0; 1315 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1316 return 0; 1317 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1318 return 0; 1319 return 1; 1320 } 1321 1322 /** 1323 * lpfc_mac_addr_match - Check if the fcf mac address match. 1324 * @mac_addr: pointer to mac address. 1325 * @new_fcf_record: pointer to fcf record. 1326 * 1327 * This routine compare the fcf record's mac address with HBA's 1328 * FCF mac address. If the mac addresses are identical this function 1329 * returns 1 else return 0. 1330 **/ 1331 static uint32_t 1332 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1333 { 1334 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1335 return 0; 1336 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1337 return 0; 1338 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1339 return 0; 1340 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1341 return 0; 1342 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1343 return 0; 1344 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1345 return 0; 1346 return 1; 1347 } 1348 1349 static bool 1350 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1351 { 1352 return (curr_vlan_id == new_vlan_id); 1353 } 1354 1355 /** 1356 * lpfc_update_fcf_record - Update driver fcf record 1357 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1358 * @phba: pointer to lpfc hba data structure. 1359 * @fcf_index: Index for the lpfc_fcf_record. 1360 * @new_fcf_record: pointer to hba fcf record. 1361 * 1362 * This routine updates the driver FCF priority record from the new HBA FCF 1363 * record. This routine is called with the host lock held. 1364 **/ 1365 static void 1366 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1367 struct fcf_record *new_fcf_record 1368 ) 1369 { 1370 struct lpfc_fcf_pri *fcf_pri; 1371 1372 lockdep_assert_held(&phba->hbalock); 1373 1374 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1375 fcf_pri->fcf_rec.fcf_index = fcf_index; 1376 /* FCF record priority */ 1377 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1378 1379 } 1380 1381 /** 1382 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1383 * @fcf: pointer to driver fcf record. 1384 * @new_fcf_record: pointer to fcf record. 1385 * 1386 * This routine copies the FCF information from the FCF 1387 * record to lpfc_hba data structure. 1388 **/ 1389 static void 1390 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1391 struct fcf_record *new_fcf_record) 1392 { 1393 /* Fabric name */ 1394 fcf_rec->fabric_name[0] = 1395 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1396 fcf_rec->fabric_name[1] = 1397 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1398 fcf_rec->fabric_name[2] = 1399 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1400 fcf_rec->fabric_name[3] = 1401 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1402 fcf_rec->fabric_name[4] = 1403 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1404 fcf_rec->fabric_name[5] = 1405 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1406 fcf_rec->fabric_name[6] = 1407 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1408 fcf_rec->fabric_name[7] = 1409 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1410 /* Mac address */ 1411 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1412 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1413 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1414 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1415 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1416 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1417 /* FCF record index */ 1418 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1419 /* FCF record priority */ 1420 fcf_rec->priority = new_fcf_record->fip_priority; 1421 /* Switch name */ 1422 fcf_rec->switch_name[0] = 1423 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1424 fcf_rec->switch_name[1] = 1425 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1426 fcf_rec->switch_name[2] = 1427 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1428 fcf_rec->switch_name[3] = 1429 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1430 fcf_rec->switch_name[4] = 1431 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1432 fcf_rec->switch_name[5] = 1433 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1434 fcf_rec->switch_name[6] = 1435 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1436 fcf_rec->switch_name[7] = 1437 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1438 } 1439 1440 /** 1441 * lpfc_update_fcf_record - Update driver fcf record 1442 * @phba: pointer to lpfc hba data structure. 1443 * @fcf_rec: pointer to driver fcf record. 1444 * @new_fcf_record: pointer to hba fcf record. 1445 * @addr_mode: address mode to be set to the driver fcf record. 1446 * @vlan_id: vlan tag to be set to the driver fcf record. 1447 * @flag: flag bits to be set to the driver fcf record. 1448 * 1449 * This routine updates the driver FCF record from the new HBA FCF record 1450 * together with the address mode, vlan_id, and other informations. This 1451 * routine is called with the host lock held. 1452 **/ 1453 static void 1454 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1455 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1456 uint16_t vlan_id, uint32_t flag) 1457 { 1458 lockdep_assert_held(&phba->hbalock); 1459 1460 /* Copy the fields from the HBA's FCF record */ 1461 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1462 /* Update other fields of driver FCF record */ 1463 fcf_rec->addr_mode = addr_mode; 1464 fcf_rec->vlan_id = vlan_id; 1465 fcf_rec->flag |= (flag | RECORD_VALID); 1466 __lpfc_update_fcf_record_pri(phba, 1467 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1468 new_fcf_record); 1469 } 1470 1471 /** 1472 * lpfc_register_fcf - Register the FCF with hba. 1473 * @phba: pointer to lpfc hba data structure. 1474 * 1475 * This routine issues a register fcfi mailbox command to register 1476 * the fcf with HBA. 1477 **/ 1478 static void 1479 lpfc_register_fcf(struct lpfc_hba *phba) 1480 { 1481 LPFC_MBOXQ_t *fcf_mbxq; 1482 int rc; 1483 1484 spin_lock_irq(&phba->hbalock); 1485 /* If the FCF is not available do nothing. */ 1486 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1487 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1488 spin_unlock_irq(&phba->hbalock); 1489 return; 1490 } 1491 1492 /* The FCF is already registered, start discovery */ 1493 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1494 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1495 phba->hba_flag &= ~FCF_TS_INPROG; 1496 if (phba->pport->port_state != LPFC_FLOGI && 1497 phba->pport->fc_flag & FC_FABRIC) { 1498 phba->hba_flag |= FCF_RR_INPROG; 1499 spin_unlock_irq(&phba->hbalock); 1500 lpfc_initial_flogi(phba->pport); 1501 return; 1502 } 1503 spin_unlock_irq(&phba->hbalock); 1504 return; 1505 } 1506 spin_unlock_irq(&phba->hbalock); 1507 1508 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1509 if (!fcf_mbxq) { 1510 spin_lock_irq(&phba->hbalock); 1511 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1512 spin_unlock_irq(&phba->hbalock); 1513 return; 1514 } 1515 1516 lpfc_reg_fcfi(phba, fcf_mbxq); 1517 fcf_mbxq->vport = phba->pport; 1518 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1519 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1520 if (rc == MBX_NOT_FINISHED) { 1521 spin_lock_irq(&phba->hbalock); 1522 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1523 spin_unlock_irq(&phba->hbalock); 1524 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1525 } 1526 1527 return; 1528 } 1529 1530 /** 1531 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1532 * @phba: pointer to lpfc hba data structure. 1533 * @new_fcf_record: pointer to fcf record. 1534 * @boot_flag: Indicates if this record used by boot bios. 1535 * @addr_mode: The address mode to be used by this FCF 1536 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1537 * 1538 * This routine compare the fcf record with connect list obtained from the 1539 * config region to decide if this FCF can be used for SAN discovery. It returns 1540 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1541 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1542 * is used by boot bios and addr_mode will indicate the addressing mode to be 1543 * used for this FCF when the function returns. 1544 * If the FCF record need to be used with a particular vlan id, the vlan is 1545 * set in the vlan_id on return of the function. If not VLAN tagging need to 1546 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1547 **/ 1548 static int 1549 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1550 struct fcf_record *new_fcf_record, 1551 uint32_t *boot_flag, uint32_t *addr_mode, 1552 uint16_t *vlan_id) 1553 { 1554 struct lpfc_fcf_conn_entry *conn_entry; 1555 int i, j, fcf_vlan_id = 0; 1556 1557 /* Find the lowest VLAN id in the FCF record */ 1558 for (i = 0; i < 512; i++) { 1559 if (new_fcf_record->vlan_bitmap[i]) { 1560 fcf_vlan_id = i * 8; 1561 j = 0; 1562 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1563 j++; 1564 fcf_vlan_id++; 1565 } 1566 break; 1567 } 1568 } 1569 1570 /* FCF not valid/available or solicitation in progress */ 1571 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1572 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1573 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1574 return 0; 1575 1576 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1577 *boot_flag = 0; 1578 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1579 new_fcf_record); 1580 if (phba->valid_vlan) 1581 *vlan_id = phba->vlan_id; 1582 else 1583 *vlan_id = LPFC_FCOE_NULL_VID; 1584 return 1; 1585 } 1586 1587 /* 1588 * If there are no FCF connection table entry, driver connect to all 1589 * FCFs. 1590 */ 1591 if (list_empty(&phba->fcf_conn_rec_list)) { 1592 *boot_flag = 0; 1593 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1594 new_fcf_record); 1595 1596 /* 1597 * When there are no FCF connect entries, use driver's default 1598 * addressing mode - FPMA. 1599 */ 1600 if (*addr_mode & LPFC_FCF_FPMA) 1601 *addr_mode = LPFC_FCF_FPMA; 1602 1603 /* If FCF record report a vlan id use that vlan id */ 1604 if (fcf_vlan_id) 1605 *vlan_id = fcf_vlan_id; 1606 else 1607 *vlan_id = LPFC_FCOE_NULL_VID; 1608 return 1; 1609 } 1610 1611 list_for_each_entry(conn_entry, 1612 &phba->fcf_conn_rec_list, list) { 1613 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1614 continue; 1615 1616 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1617 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1618 new_fcf_record)) 1619 continue; 1620 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1621 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1622 new_fcf_record)) 1623 continue; 1624 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1625 /* 1626 * If the vlan bit map does not have the bit set for the 1627 * vlan id to be used, then it is not a match. 1628 */ 1629 if (!(new_fcf_record->vlan_bitmap 1630 [conn_entry->conn_rec.vlan_tag / 8] & 1631 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1632 continue; 1633 } 1634 1635 /* 1636 * If connection record does not support any addressing mode, 1637 * skip the FCF record. 1638 */ 1639 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1640 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1641 continue; 1642 1643 /* 1644 * Check if the connection record specifies a required 1645 * addressing mode. 1646 */ 1647 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1648 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1649 1650 /* 1651 * If SPMA required but FCF not support this continue. 1652 */ 1653 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1654 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1655 new_fcf_record) & LPFC_FCF_SPMA)) 1656 continue; 1657 1658 /* 1659 * If FPMA required but FCF not support this continue. 1660 */ 1661 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1662 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1663 new_fcf_record) & LPFC_FCF_FPMA)) 1664 continue; 1665 } 1666 1667 /* 1668 * This fcf record matches filtering criteria. 1669 */ 1670 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1671 *boot_flag = 1; 1672 else 1673 *boot_flag = 0; 1674 1675 /* 1676 * If user did not specify any addressing mode, or if the 1677 * preferred addressing mode specified by user is not supported 1678 * by FCF, allow fabric to pick the addressing mode. 1679 */ 1680 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1681 new_fcf_record); 1682 /* 1683 * If the user specified a required address mode, assign that 1684 * address mode 1685 */ 1686 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1687 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1688 *addr_mode = (conn_entry->conn_rec.flags & 1689 FCFCNCT_AM_SPMA) ? 1690 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1691 /* 1692 * If the user specified a preferred address mode, use the 1693 * addr mode only if FCF support the addr_mode. 1694 */ 1695 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1696 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1697 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1698 (*addr_mode & LPFC_FCF_SPMA)) 1699 *addr_mode = LPFC_FCF_SPMA; 1700 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1701 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1702 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1703 (*addr_mode & LPFC_FCF_FPMA)) 1704 *addr_mode = LPFC_FCF_FPMA; 1705 1706 /* If matching connect list has a vlan id, use it */ 1707 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1708 *vlan_id = conn_entry->conn_rec.vlan_tag; 1709 /* 1710 * If no vlan id is specified in connect list, use the vlan id 1711 * in the FCF record 1712 */ 1713 else if (fcf_vlan_id) 1714 *vlan_id = fcf_vlan_id; 1715 else 1716 *vlan_id = LPFC_FCOE_NULL_VID; 1717 1718 return 1; 1719 } 1720 1721 return 0; 1722 } 1723 1724 /** 1725 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1726 * @phba: pointer to lpfc hba data structure. 1727 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1728 * 1729 * This function check if there is any fcoe event pending while driver 1730 * scan FCF entries. If there is any pending event, it will restart the 1731 * FCF saning and return 1 else return 0. 1732 */ 1733 int 1734 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1735 { 1736 /* 1737 * If the Link is up and no FCoE events while in the 1738 * FCF discovery, no need to restart FCF discovery. 1739 */ 1740 if ((phba->link_state >= LPFC_LINK_UP) && 1741 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1742 return 0; 1743 1744 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1745 "2768 Pending link or FCF event during current " 1746 "handling of the previous event: link_state:x%x, " 1747 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1748 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1749 phba->fcoe_eventtag); 1750 1751 spin_lock_irq(&phba->hbalock); 1752 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1753 spin_unlock_irq(&phba->hbalock); 1754 1755 if (phba->link_state >= LPFC_LINK_UP) { 1756 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1757 "2780 Restart FCF table scan due to " 1758 "pending FCF event:evt_tag_at_scan:x%x, " 1759 "evt_tag_current:x%x\n", 1760 phba->fcoe_eventtag_at_fcf_scan, 1761 phba->fcoe_eventtag); 1762 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1763 } else { 1764 /* 1765 * Do not continue FCF discovery and clear FCF_TS_INPROG 1766 * flag 1767 */ 1768 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1769 "2833 Stop FCF discovery process due to link " 1770 "state change (x%x)\n", phba->link_state); 1771 spin_lock_irq(&phba->hbalock); 1772 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1773 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1774 spin_unlock_irq(&phba->hbalock); 1775 } 1776 1777 /* Unregister the currently registered FCF if required */ 1778 if (unreg_fcf) { 1779 spin_lock_irq(&phba->hbalock); 1780 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1781 spin_unlock_irq(&phba->hbalock); 1782 lpfc_sli4_unregister_fcf(phba); 1783 } 1784 return 1; 1785 } 1786 1787 /** 1788 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1789 * @phba: pointer to lpfc hba data structure. 1790 * @fcf_cnt: number of eligible fcf record seen so far. 1791 * 1792 * This function makes an running random selection decision on FCF record to 1793 * use through a sequence of @fcf_cnt eligible FCF records with equal 1794 * probability. To perform integer manunipulation of random numbers with 1795 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1796 * from prandom_u32() are taken as the random random number generated. 1797 * 1798 * Returns true when outcome is for the newly read FCF record should be 1799 * chosen; otherwise, return false when outcome is for keeping the previously 1800 * chosen FCF record. 1801 **/ 1802 static bool 1803 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1804 { 1805 uint32_t rand_num; 1806 1807 /* Get 16-bit uniform random number */ 1808 rand_num = 0xFFFF & prandom_u32(); 1809 1810 /* Decision with probability 1/fcf_cnt */ 1811 if ((fcf_cnt * rand_num) < 0xFFFF) 1812 return true; 1813 else 1814 return false; 1815 } 1816 1817 /** 1818 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1819 * @phba: pointer to lpfc hba data structure. 1820 * @mboxq: pointer to mailbox object. 1821 * @next_fcf_index: pointer to holder of next fcf index. 1822 * 1823 * This routine parses the non-embedded fcf mailbox command by performing the 1824 * necessarily error checking, non-embedded read FCF record mailbox command 1825 * SGE parsing, and endianness swapping. 1826 * 1827 * Returns the pointer to the new FCF record in the non-embedded mailbox 1828 * command DMA memory if successfully, other NULL. 1829 */ 1830 static struct fcf_record * 1831 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1832 uint16_t *next_fcf_index) 1833 { 1834 void *virt_addr; 1835 struct lpfc_mbx_sge sge; 1836 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1837 uint32_t shdr_status, shdr_add_status, if_type; 1838 union lpfc_sli4_cfg_shdr *shdr; 1839 struct fcf_record *new_fcf_record; 1840 1841 /* Get the first SGE entry from the non-embedded DMA memory. This 1842 * routine only uses a single SGE. 1843 */ 1844 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1845 if (unlikely(!mboxq->sge_array)) { 1846 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1847 "2524 Failed to get the non-embedded SGE " 1848 "virtual address\n"); 1849 return NULL; 1850 } 1851 virt_addr = mboxq->sge_array->addr[0]; 1852 1853 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1854 lpfc_sli_pcimem_bcopy(shdr, shdr, 1855 sizeof(union lpfc_sli4_cfg_shdr)); 1856 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1857 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1858 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1859 if (shdr_status || shdr_add_status) { 1860 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1861 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1862 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1863 "2726 READ_FCF_RECORD Indicates empty " 1864 "FCF table.\n"); 1865 else 1866 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1867 "2521 READ_FCF_RECORD mailbox failed " 1868 "with status x%x add_status x%x, " 1869 "mbx\n", shdr_status, shdr_add_status); 1870 return NULL; 1871 } 1872 1873 /* Interpreting the returned information of the FCF record */ 1874 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1875 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1876 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1877 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1878 new_fcf_record = (struct fcf_record *)(virt_addr + 1879 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1880 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1881 offsetof(struct fcf_record, vlan_bitmap)); 1882 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1883 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1884 1885 return new_fcf_record; 1886 } 1887 1888 /** 1889 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1890 * @phba: pointer to lpfc hba data structure. 1891 * @fcf_record: pointer to the fcf record. 1892 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1893 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1894 * 1895 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1896 * enabled. 1897 **/ 1898 static void 1899 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1900 struct fcf_record *fcf_record, 1901 uint16_t vlan_id, 1902 uint16_t next_fcf_index) 1903 { 1904 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1905 "2764 READ_FCF_RECORD:\n" 1906 "\tFCF_Index : x%x\n" 1907 "\tFCF_Avail : x%x\n" 1908 "\tFCF_Valid : x%x\n" 1909 "\tFCF_SOL : x%x\n" 1910 "\tFIP_Priority : x%x\n" 1911 "\tMAC_Provider : x%x\n" 1912 "\tLowest VLANID : x%x\n" 1913 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1914 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1915 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1916 "\tNext_FCF_Index: x%x\n", 1917 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1918 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1919 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1920 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1921 fcf_record->fip_priority, 1922 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1923 vlan_id, 1924 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1925 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1926 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1927 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1928 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1929 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1930 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1931 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1932 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1933 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1934 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1935 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1936 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1937 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1938 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1939 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1940 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1941 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1942 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1943 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1944 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1945 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1946 next_fcf_index); 1947 } 1948 1949 /** 1950 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1951 * @phba: pointer to lpfc hba data structure. 1952 * @fcf_rec: pointer to an existing FCF record. 1953 * @new_fcf_record: pointer to a new FCF record. 1954 * @new_vlan_id: vlan id from the new FCF record. 1955 * 1956 * This function performs matching test of a new FCF record against an existing 1957 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1958 * will not be used as part of the FCF record matching criteria. 1959 * 1960 * Returns true if all the fields matching, otherwise returns false. 1961 */ 1962 static bool 1963 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1964 struct lpfc_fcf_rec *fcf_rec, 1965 struct fcf_record *new_fcf_record, 1966 uint16_t new_vlan_id) 1967 { 1968 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1969 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1970 return false; 1971 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1972 return false; 1973 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1974 return false; 1975 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1976 return false; 1977 if (fcf_rec->priority != new_fcf_record->fip_priority) 1978 return false; 1979 return true; 1980 } 1981 1982 /** 1983 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1984 * @vport: Pointer to vport object. 1985 * @fcf_index: index to next fcf. 1986 * 1987 * This function processing the roundrobin fcf failover to next fcf index. 1988 * When this function is invoked, there will be a current fcf registered 1989 * for flogi. 1990 * Return: 0 for continue retrying flogi on currently registered fcf; 1991 * 1 for stop flogi on currently registered fcf; 1992 */ 1993 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1994 { 1995 struct lpfc_hba *phba = vport->phba; 1996 int rc; 1997 1998 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 1999 spin_lock_irq(&phba->hbalock); 2000 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2001 spin_unlock_irq(&phba->hbalock); 2002 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2003 "2872 Devloss tmo with no eligible " 2004 "FCF, unregister in-use FCF (x%x) " 2005 "and rescan FCF table\n", 2006 phba->fcf.current_rec.fcf_indx); 2007 lpfc_unregister_fcf_rescan(phba); 2008 goto stop_flogi_current_fcf; 2009 } 2010 /* Mark the end to FLOGI roundrobin failover */ 2011 phba->hba_flag &= ~FCF_RR_INPROG; 2012 /* Allow action to new fcf asynchronous event */ 2013 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2014 spin_unlock_irq(&phba->hbalock); 2015 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2016 "2865 No FCF available, stop roundrobin FCF " 2017 "failover and change port state:x%x/x%x\n", 2018 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2019 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2020 2021 if (!phba->fcf.fcf_redisc_attempted) { 2022 lpfc_unregister_fcf(phba); 2023 2024 rc = lpfc_sli4_redisc_fcf_table(phba); 2025 if (!rc) { 2026 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2027 "3195 Rediscover FCF table\n"); 2028 phba->fcf.fcf_redisc_attempted = 1; 2029 lpfc_sli4_clear_fcf_rr_bmask(phba); 2030 } else { 2031 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2032 "3196 Rediscover FCF table " 2033 "failed. Status:x%x\n", rc); 2034 } 2035 } else { 2036 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2037 "3197 Already rediscover FCF table " 2038 "attempted. No more retry\n"); 2039 } 2040 goto stop_flogi_current_fcf; 2041 } else { 2042 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2043 "2794 Try FLOGI roundrobin FCF failover to " 2044 "(x%x)\n", fcf_index); 2045 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2046 if (rc) 2047 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2048 "2761 FLOGI roundrobin FCF failover " 2049 "failed (rc:x%x) to read FCF (x%x)\n", 2050 rc, phba->fcf.current_rec.fcf_indx); 2051 else 2052 goto stop_flogi_current_fcf; 2053 } 2054 return 0; 2055 2056 stop_flogi_current_fcf: 2057 lpfc_can_disctmo(vport); 2058 return 1; 2059 } 2060 2061 /** 2062 * lpfc_sli4_fcf_pri_list_del 2063 * @phba: pointer to lpfc hba data structure. 2064 * @fcf_index the index of the fcf record to delete 2065 * This routine checks the on list flag of the fcf_index to be deleted. 2066 * If it is one the list then it is removed from the list, and the flag 2067 * is cleared. This routine grab the hbalock before removing the fcf 2068 * record from the list. 2069 **/ 2070 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2071 uint16_t fcf_index) 2072 { 2073 struct lpfc_fcf_pri *new_fcf_pri; 2074 2075 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2076 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2077 "3058 deleting idx x%x pri x%x flg x%x\n", 2078 fcf_index, new_fcf_pri->fcf_rec.priority, 2079 new_fcf_pri->fcf_rec.flag); 2080 spin_lock_irq(&phba->hbalock); 2081 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2082 if (phba->fcf.current_rec.priority == 2083 new_fcf_pri->fcf_rec.priority) 2084 phba->fcf.eligible_fcf_cnt--; 2085 list_del_init(&new_fcf_pri->list); 2086 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2087 } 2088 spin_unlock_irq(&phba->hbalock); 2089 } 2090 2091 /** 2092 * lpfc_sli4_set_fcf_flogi_fail 2093 * @phba: pointer to lpfc hba data structure. 2094 * @fcf_index the index of the fcf record to update 2095 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2096 * flag so the the round robin slection for the particular priority level 2097 * will try a different fcf record that does not have this bit set. 2098 * If the fcf record is re-read for any reason this flag is cleared brfore 2099 * adding it to the priority list. 2100 **/ 2101 void 2102 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2103 { 2104 struct lpfc_fcf_pri *new_fcf_pri; 2105 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2106 spin_lock_irq(&phba->hbalock); 2107 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2108 spin_unlock_irq(&phba->hbalock); 2109 } 2110 2111 /** 2112 * lpfc_sli4_fcf_pri_list_add 2113 * @phba: pointer to lpfc hba data structure. 2114 * @fcf_index the index of the fcf record to add 2115 * This routine checks the priority of the fcf_index to be added. 2116 * If it is a lower priority than the current head of the fcf_pri list 2117 * then it is added to the list in the right order. 2118 * If it is the same priority as the current head of the list then it 2119 * is added to the head of the list and its bit in the rr_bmask is set. 2120 * If the fcf_index to be added is of a higher priority than the current 2121 * head of the list then the rr_bmask is cleared, its bit is set in the 2122 * rr_bmask and it is added to the head of the list. 2123 * returns: 2124 * 0=success 1=failure 2125 **/ 2126 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2127 uint16_t fcf_index, 2128 struct fcf_record *new_fcf_record) 2129 { 2130 uint16_t current_fcf_pri; 2131 uint16_t last_index; 2132 struct lpfc_fcf_pri *fcf_pri; 2133 struct lpfc_fcf_pri *next_fcf_pri; 2134 struct lpfc_fcf_pri *new_fcf_pri; 2135 int ret; 2136 2137 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2138 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2139 "3059 adding idx x%x pri x%x flg x%x\n", 2140 fcf_index, new_fcf_record->fip_priority, 2141 new_fcf_pri->fcf_rec.flag); 2142 spin_lock_irq(&phba->hbalock); 2143 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2144 list_del_init(&new_fcf_pri->list); 2145 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2146 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2147 if (list_empty(&phba->fcf.fcf_pri_list)) { 2148 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2149 ret = lpfc_sli4_fcf_rr_index_set(phba, 2150 new_fcf_pri->fcf_rec.fcf_index); 2151 goto out; 2152 } 2153 2154 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2155 LPFC_SLI4_FCF_TBL_INDX_MAX); 2156 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2157 ret = 0; /* Empty rr list */ 2158 goto out; 2159 } 2160 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2161 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2162 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2163 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2164 memset(phba->fcf.fcf_rr_bmask, 0, 2165 sizeof(*phba->fcf.fcf_rr_bmask)); 2166 /* fcfs_at_this_priority_level = 1; */ 2167 phba->fcf.eligible_fcf_cnt = 1; 2168 } else 2169 /* fcfs_at_this_priority_level++; */ 2170 phba->fcf.eligible_fcf_cnt++; 2171 ret = lpfc_sli4_fcf_rr_index_set(phba, 2172 new_fcf_pri->fcf_rec.fcf_index); 2173 goto out; 2174 } 2175 2176 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2177 &phba->fcf.fcf_pri_list, list) { 2178 if (new_fcf_pri->fcf_rec.priority <= 2179 fcf_pri->fcf_rec.priority) { 2180 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2181 list_add(&new_fcf_pri->list, 2182 &phba->fcf.fcf_pri_list); 2183 else 2184 list_add(&new_fcf_pri->list, 2185 &((struct lpfc_fcf_pri *) 2186 fcf_pri->list.prev)->list); 2187 ret = 0; 2188 goto out; 2189 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2190 || new_fcf_pri->fcf_rec.priority < 2191 next_fcf_pri->fcf_rec.priority) { 2192 list_add(&new_fcf_pri->list, &fcf_pri->list); 2193 ret = 0; 2194 goto out; 2195 } 2196 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2197 continue; 2198 2199 } 2200 ret = 1; 2201 out: 2202 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2203 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2204 spin_unlock_irq(&phba->hbalock); 2205 return ret; 2206 } 2207 2208 /** 2209 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2210 * @phba: pointer to lpfc hba data structure. 2211 * @mboxq: pointer to mailbox object. 2212 * 2213 * This function iterates through all the fcf records available in 2214 * HBA and chooses the optimal FCF record for discovery. After finding 2215 * the FCF for discovery it registers the FCF record and kicks start 2216 * discovery. 2217 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2218 * use an FCF record which matches fabric name and mac address of the 2219 * currently used FCF record. 2220 * If the driver supports only one FCF, it will try to use the FCF record 2221 * used by BOOT_BIOS. 2222 */ 2223 void 2224 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2225 { 2226 struct fcf_record *new_fcf_record; 2227 uint32_t boot_flag, addr_mode; 2228 uint16_t fcf_index, next_fcf_index; 2229 struct lpfc_fcf_rec *fcf_rec = NULL; 2230 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2231 bool select_new_fcf; 2232 int rc; 2233 2234 /* If there is pending FCoE event restart FCF table scan */ 2235 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2236 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2237 return; 2238 } 2239 2240 /* Parse the FCF record from the non-embedded mailbox command */ 2241 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2242 &next_fcf_index); 2243 if (!new_fcf_record) { 2244 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2245 "2765 Mailbox command READ_FCF_RECORD " 2246 "failed to retrieve a FCF record.\n"); 2247 /* Let next new FCF event trigger fast failover */ 2248 spin_lock_irq(&phba->hbalock); 2249 phba->hba_flag &= ~FCF_TS_INPROG; 2250 spin_unlock_irq(&phba->hbalock); 2251 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2252 return; 2253 } 2254 2255 /* Check the FCF record against the connection list */ 2256 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2257 &addr_mode, &vlan_id); 2258 2259 /* Log the FCF record information if turned on */ 2260 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2261 next_fcf_index); 2262 2263 /* 2264 * If the fcf record does not match with connect list entries 2265 * read the next entry; otherwise, this is an eligible FCF 2266 * record for roundrobin FCF failover. 2267 */ 2268 if (!rc) { 2269 lpfc_sli4_fcf_pri_list_del(phba, 2270 bf_get(lpfc_fcf_record_fcf_index, 2271 new_fcf_record)); 2272 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2273 "2781 FCF (x%x) failed connection " 2274 "list check: (x%x/x%x/%x)\n", 2275 bf_get(lpfc_fcf_record_fcf_index, 2276 new_fcf_record), 2277 bf_get(lpfc_fcf_record_fcf_avail, 2278 new_fcf_record), 2279 bf_get(lpfc_fcf_record_fcf_valid, 2280 new_fcf_record), 2281 bf_get(lpfc_fcf_record_fcf_sol, 2282 new_fcf_record)); 2283 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2284 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2285 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2286 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2287 phba->fcf.current_rec.fcf_indx) { 2288 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2289 "2862 FCF (x%x) matches property " 2290 "of in-use FCF (x%x)\n", 2291 bf_get(lpfc_fcf_record_fcf_index, 2292 new_fcf_record), 2293 phba->fcf.current_rec.fcf_indx); 2294 goto read_next_fcf; 2295 } 2296 /* 2297 * In case the current in-use FCF record becomes 2298 * invalid/unavailable during FCF discovery that 2299 * was not triggered by fast FCF failover process, 2300 * treat it as fast FCF failover. 2301 */ 2302 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2303 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2304 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2305 "2835 Invalid in-use FCF " 2306 "(x%x), enter FCF failover " 2307 "table scan.\n", 2308 phba->fcf.current_rec.fcf_indx); 2309 spin_lock_irq(&phba->hbalock); 2310 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2311 spin_unlock_irq(&phba->hbalock); 2312 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2313 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2314 LPFC_FCOE_FCF_GET_FIRST); 2315 return; 2316 } 2317 } 2318 goto read_next_fcf; 2319 } else { 2320 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2321 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2322 new_fcf_record); 2323 if (rc) 2324 goto read_next_fcf; 2325 } 2326 2327 /* 2328 * If this is not the first FCF discovery of the HBA, use last 2329 * FCF record for the discovery. The condition that a rescan 2330 * matches the in-use FCF record: fabric name, switch name, mac 2331 * address, and vlan_id. 2332 */ 2333 spin_lock_irq(&phba->hbalock); 2334 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2335 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2336 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2337 new_fcf_record, vlan_id)) { 2338 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2339 phba->fcf.current_rec.fcf_indx) { 2340 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2341 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2342 /* Stop FCF redisc wait timer */ 2343 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2344 phba); 2345 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2346 /* Fast failover, mark completed */ 2347 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2348 spin_unlock_irq(&phba->hbalock); 2349 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2350 "2836 New FCF matches in-use " 2351 "FCF (x%x), port_state:x%x, " 2352 "fc_flag:x%x\n", 2353 phba->fcf.current_rec.fcf_indx, 2354 phba->pport->port_state, 2355 phba->pport->fc_flag); 2356 goto out; 2357 } else 2358 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2359 "2863 New FCF (x%x) matches " 2360 "property of in-use FCF (x%x)\n", 2361 bf_get(lpfc_fcf_record_fcf_index, 2362 new_fcf_record), 2363 phba->fcf.current_rec.fcf_indx); 2364 } 2365 /* 2366 * Read next FCF record from HBA searching for the matching 2367 * with in-use record only if not during the fast failover 2368 * period. In case of fast failover period, it shall try to 2369 * determine whether the FCF record just read should be the 2370 * next candidate. 2371 */ 2372 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2373 spin_unlock_irq(&phba->hbalock); 2374 goto read_next_fcf; 2375 } 2376 } 2377 /* 2378 * Update on failover FCF record only if it's in FCF fast-failover 2379 * period; otherwise, update on current FCF record. 2380 */ 2381 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2382 fcf_rec = &phba->fcf.failover_rec; 2383 else 2384 fcf_rec = &phba->fcf.current_rec; 2385 2386 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2387 /* 2388 * If the driver FCF record does not have boot flag 2389 * set and new hba fcf record has boot flag set, use 2390 * the new hba fcf record. 2391 */ 2392 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2393 /* Choose this FCF record */ 2394 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2395 "2837 Update current FCF record " 2396 "(x%x) with new FCF record (x%x)\n", 2397 fcf_rec->fcf_indx, 2398 bf_get(lpfc_fcf_record_fcf_index, 2399 new_fcf_record)); 2400 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2401 addr_mode, vlan_id, BOOT_ENABLE); 2402 spin_unlock_irq(&phba->hbalock); 2403 goto read_next_fcf; 2404 } 2405 /* 2406 * If the driver FCF record has boot flag set and the 2407 * new hba FCF record does not have boot flag, read 2408 * the next FCF record. 2409 */ 2410 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2411 spin_unlock_irq(&phba->hbalock); 2412 goto read_next_fcf; 2413 } 2414 /* 2415 * If the new hba FCF record has lower priority value 2416 * than the driver FCF record, use the new record. 2417 */ 2418 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2419 /* Choose the new FCF record with lower priority */ 2420 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2421 "2838 Update current FCF record " 2422 "(x%x) with new FCF record (x%x)\n", 2423 fcf_rec->fcf_indx, 2424 bf_get(lpfc_fcf_record_fcf_index, 2425 new_fcf_record)); 2426 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2427 addr_mode, vlan_id, 0); 2428 /* Reset running random FCF selection count */ 2429 phba->fcf.eligible_fcf_cnt = 1; 2430 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2431 /* Update running random FCF selection count */ 2432 phba->fcf.eligible_fcf_cnt++; 2433 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2434 phba->fcf.eligible_fcf_cnt); 2435 if (select_new_fcf) { 2436 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2437 "2839 Update current FCF record " 2438 "(x%x) with new FCF record (x%x)\n", 2439 fcf_rec->fcf_indx, 2440 bf_get(lpfc_fcf_record_fcf_index, 2441 new_fcf_record)); 2442 /* Choose the new FCF by random selection */ 2443 __lpfc_update_fcf_record(phba, fcf_rec, 2444 new_fcf_record, 2445 addr_mode, vlan_id, 0); 2446 } 2447 } 2448 spin_unlock_irq(&phba->hbalock); 2449 goto read_next_fcf; 2450 } 2451 /* 2452 * This is the first suitable FCF record, choose this record for 2453 * initial best-fit FCF. 2454 */ 2455 if (fcf_rec) { 2456 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2457 "2840 Update initial FCF candidate " 2458 "with FCF (x%x)\n", 2459 bf_get(lpfc_fcf_record_fcf_index, 2460 new_fcf_record)); 2461 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2462 addr_mode, vlan_id, (boot_flag ? 2463 BOOT_ENABLE : 0)); 2464 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2465 /* Setup initial running random FCF selection count */ 2466 phba->fcf.eligible_fcf_cnt = 1; 2467 } 2468 spin_unlock_irq(&phba->hbalock); 2469 goto read_next_fcf; 2470 2471 read_next_fcf: 2472 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2473 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2474 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2475 /* 2476 * Case of FCF fast failover scan 2477 */ 2478 2479 /* 2480 * It has not found any suitable FCF record, cancel 2481 * FCF scan inprogress, and do nothing 2482 */ 2483 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2484 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2485 "2782 No suitable FCF found: " 2486 "(x%x/x%x)\n", 2487 phba->fcoe_eventtag_at_fcf_scan, 2488 bf_get(lpfc_fcf_record_fcf_index, 2489 new_fcf_record)); 2490 spin_lock_irq(&phba->hbalock); 2491 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2492 phba->hba_flag &= ~FCF_TS_INPROG; 2493 spin_unlock_irq(&phba->hbalock); 2494 /* Unregister in-use FCF and rescan */ 2495 lpfc_printf_log(phba, KERN_INFO, 2496 LOG_FIP, 2497 "2864 On devloss tmo " 2498 "unreg in-use FCF and " 2499 "rescan FCF table\n"); 2500 lpfc_unregister_fcf_rescan(phba); 2501 return; 2502 } 2503 /* 2504 * Let next new FCF event trigger fast failover 2505 */ 2506 phba->hba_flag &= ~FCF_TS_INPROG; 2507 spin_unlock_irq(&phba->hbalock); 2508 return; 2509 } 2510 /* 2511 * It has found a suitable FCF record that is not 2512 * the same as in-use FCF record, unregister the 2513 * in-use FCF record, replace the in-use FCF record 2514 * with the new FCF record, mark FCF fast failover 2515 * completed, and then start register the new FCF 2516 * record. 2517 */ 2518 2519 /* Unregister the current in-use FCF record */ 2520 lpfc_unregister_fcf(phba); 2521 2522 /* Replace in-use record with the new record */ 2523 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2524 "2842 Replace in-use FCF (x%x) " 2525 "with failover FCF (x%x)\n", 2526 phba->fcf.current_rec.fcf_indx, 2527 phba->fcf.failover_rec.fcf_indx); 2528 memcpy(&phba->fcf.current_rec, 2529 &phba->fcf.failover_rec, 2530 sizeof(struct lpfc_fcf_rec)); 2531 /* 2532 * Mark the fast FCF failover rediscovery completed 2533 * and the start of the first round of the roundrobin 2534 * FCF failover. 2535 */ 2536 spin_lock_irq(&phba->hbalock); 2537 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2538 spin_unlock_irq(&phba->hbalock); 2539 /* Register to the new FCF record */ 2540 lpfc_register_fcf(phba); 2541 } else { 2542 /* 2543 * In case of transaction period to fast FCF failover, 2544 * do nothing when search to the end of the FCF table. 2545 */ 2546 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2547 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2548 return; 2549 2550 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2551 phba->fcf.fcf_flag & FCF_IN_USE) { 2552 /* 2553 * In case the current in-use FCF record no 2554 * longer existed during FCF discovery that 2555 * was not triggered by fast FCF failover 2556 * process, treat it as fast FCF failover. 2557 */ 2558 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2559 "2841 In-use FCF record (x%x) " 2560 "not reported, entering fast " 2561 "FCF failover mode scanning.\n", 2562 phba->fcf.current_rec.fcf_indx); 2563 spin_lock_irq(&phba->hbalock); 2564 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2565 spin_unlock_irq(&phba->hbalock); 2566 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2567 LPFC_FCOE_FCF_GET_FIRST); 2568 return; 2569 } 2570 /* Register to the new FCF record */ 2571 lpfc_register_fcf(phba); 2572 } 2573 } else 2574 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2575 return; 2576 2577 out: 2578 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2579 lpfc_register_fcf(phba); 2580 2581 return; 2582 } 2583 2584 /** 2585 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2586 * @phba: pointer to lpfc hba data structure. 2587 * @mboxq: pointer to mailbox object. 2588 * 2589 * This is the callback function for FLOGI failure roundrobin FCF failover 2590 * read FCF record mailbox command from the eligible FCF record bmask for 2591 * performing the failover. If the FCF read back is not valid/available, it 2592 * fails through to retrying FLOGI to the currently registered FCF again. 2593 * Otherwise, if the FCF read back is valid and available, it will set the 2594 * newly read FCF record to the failover FCF record, unregister currently 2595 * registered FCF record, copy the failover FCF record to the current 2596 * FCF record, and then register the current FCF record before proceeding 2597 * to trying FLOGI on the new failover FCF. 2598 */ 2599 void 2600 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2601 { 2602 struct fcf_record *new_fcf_record; 2603 uint32_t boot_flag, addr_mode; 2604 uint16_t next_fcf_index, fcf_index; 2605 uint16_t current_fcf_index; 2606 uint16_t vlan_id; 2607 int rc; 2608 2609 /* If link state is not up, stop the roundrobin failover process */ 2610 if (phba->link_state < LPFC_LINK_UP) { 2611 spin_lock_irq(&phba->hbalock); 2612 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2613 phba->hba_flag &= ~FCF_RR_INPROG; 2614 spin_unlock_irq(&phba->hbalock); 2615 goto out; 2616 } 2617 2618 /* Parse the FCF record from the non-embedded mailbox command */ 2619 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2620 &next_fcf_index); 2621 if (!new_fcf_record) { 2622 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2623 "2766 Mailbox command READ_FCF_RECORD " 2624 "failed to retrieve a FCF record. " 2625 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2626 phba->fcf.fcf_flag); 2627 lpfc_unregister_fcf_rescan(phba); 2628 goto out; 2629 } 2630 2631 /* Get the needed parameters from FCF record */ 2632 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2633 &addr_mode, &vlan_id); 2634 2635 /* Log the FCF record information if turned on */ 2636 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2637 next_fcf_index); 2638 2639 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2640 if (!rc) { 2641 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2642 "2848 Remove ineligible FCF (x%x) from " 2643 "from roundrobin bmask\n", fcf_index); 2644 /* Clear roundrobin bmask bit for ineligible FCF */ 2645 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2646 /* Perform next round of roundrobin FCF failover */ 2647 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2648 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2649 if (rc) 2650 goto out; 2651 goto error_out; 2652 } 2653 2654 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2655 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2656 "2760 Perform FLOGI roundrobin FCF failover: " 2657 "FCF (x%x) back to FCF (x%x)\n", 2658 phba->fcf.current_rec.fcf_indx, fcf_index); 2659 /* Wait 500 ms before retrying FLOGI to current FCF */ 2660 msleep(500); 2661 lpfc_issue_init_vfi(phba->pport); 2662 goto out; 2663 } 2664 2665 /* Upload new FCF record to the failover FCF record */ 2666 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2667 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2668 phba->fcf.failover_rec.fcf_indx, fcf_index); 2669 spin_lock_irq(&phba->hbalock); 2670 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2671 new_fcf_record, addr_mode, vlan_id, 2672 (boot_flag ? BOOT_ENABLE : 0)); 2673 spin_unlock_irq(&phba->hbalock); 2674 2675 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2676 2677 /* Unregister the current in-use FCF record */ 2678 lpfc_unregister_fcf(phba); 2679 2680 /* Replace in-use record with the new record */ 2681 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2682 sizeof(struct lpfc_fcf_rec)); 2683 2684 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2685 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2686 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2687 2688 error_out: 2689 lpfc_register_fcf(phba); 2690 out: 2691 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2692 } 2693 2694 /** 2695 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2696 * @phba: pointer to lpfc hba data structure. 2697 * @mboxq: pointer to mailbox object. 2698 * 2699 * This is the callback function of read FCF record mailbox command for 2700 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2701 * failover when a new FCF event happened. If the FCF read back is 2702 * valid/available and it passes the connection list check, it updates 2703 * the bmask for the eligible FCF record for roundrobin failover. 2704 */ 2705 void 2706 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2707 { 2708 struct fcf_record *new_fcf_record; 2709 uint32_t boot_flag, addr_mode; 2710 uint16_t fcf_index, next_fcf_index; 2711 uint16_t vlan_id; 2712 int rc; 2713 2714 /* If link state is not up, no need to proceed */ 2715 if (phba->link_state < LPFC_LINK_UP) 2716 goto out; 2717 2718 /* If FCF discovery period is over, no need to proceed */ 2719 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2720 goto out; 2721 2722 /* Parse the FCF record from the non-embedded mailbox command */ 2723 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2724 &next_fcf_index); 2725 if (!new_fcf_record) { 2726 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2727 "2767 Mailbox command READ_FCF_RECORD " 2728 "failed to retrieve a FCF record.\n"); 2729 goto out; 2730 } 2731 2732 /* Check the connection list for eligibility */ 2733 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2734 &addr_mode, &vlan_id); 2735 2736 /* Log the FCF record information if turned on */ 2737 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2738 next_fcf_index); 2739 2740 if (!rc) 2741 goto out; 2742 2743 /* Update the eligible FCF record index bmask */ 2744 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2745 2746 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2747 2748 out: 2749 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2750 } 2751 2752 /** 2753 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2754 * @phba: pointer to lpfc hba data structure. 2755 * @mboxq: pointer to mailbox data structure. 2756 * 2757 * This function handles completion of init vfi mailbox command. 2758 */ 2759 static void 2760 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2761 { 2762 struct lpfc_vport *vport = mboxq->vport; 2763 2764 /* 2765 * VFI not supported on interface type 0, just do the flogi 2766 * Also continue if the VFI is in use - just use the same one. 2767 */ 2768 if (mboxq->u.mb.mbxStatus && 2769 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2770 LPFC_SLI_INTF_IF_TYPE_0) && 2771 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2772 lpfc_printf_vlog(vport, KERN_ERR, 2773 LOG_MBOX, 2774 "2891 Init VFI mailbox failed 0x%x\n", 2775 mboxq->u.mb.mbxStatus); 2776 mempool_free(mboxq, phba->mbox_mem_pool); 2777 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2778 return; 2779 } 2780 2781 lpfc_initial_flogi(vport); 2782 mempool_free(mboxq, phba->mbox_mem_pool); 2783 return; 2784 } 2785 2786 /** 2787 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2788 * @vport: pointer to lpfc_vport data structure. 2789 * 2790 * This function issue a init_vfi mailbox command to initialize the VFI and 2791 * VPI for the physical port. 2792 */ 2793 void 2794 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2795 { 2796 LPFC_MBOXQ_t *mboxq; 2797 int rc; 2798 struct lpfc_hba *phba = vport->phba; 2799 2800 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2801 if (!mboxq) { 2802 lpfc_printf_vlog(vport, KERN_ERR, 2803 LOG_MBOX, "2892 Failed to allocate " 2804 "init_vfi mailbox\n"); 2805 return; 2806 } 2807 lpfc_init_vfi(mboxq, vport); 2808 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2809 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2810 if (rc == MBX_NOT_FINISHED) { 2811 lpfc_printf_vlog(vport, KERN_ERR, 2812 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2813 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2814 } 2815 } 2816 2817 /** 2818 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2819 * @phba: pointer to lpfc hba data structure. 2820 * @mboxq: pointer to mailbox data structure. 2821 * 2822 * This function handles completion of init vpi mailbox command. 2823 */ 2824 void 2825 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2826 { 2827 struct lpfc_vport *vport = mboxq->vport; 2828 struct lpfc_nodelist *ndlp; 2829 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2830 2831 if (mboxq->u.mb.mbxStatus) { 2832 lpfc_printf_vlog(vport, KERN_ERR, 2833 LOG_MBOX, 2834 "2609 Init VPI mailbox failed 0x%x\n", 2835 mboxq->u.mb.mbxStatus); 2836 mempool_free(mboxq, phba->mbox_mem_pool); 2837 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2838 return; 2839 } 2840 spin_lock_irq(shost->host_lock); 2841 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2842 spin_unlock_irq(shost->host_lock); 2843 2844 /* If this port is physical port or FDISC is done, do reg_vpi */ 2845 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2846 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2847 if (!ndlp) 2848 lpfc_printf_vlog(vport, KERN_ERR, 2849 LOG_DISCOVERY, 2850 "2731 Cannot find fabric " 2851 "controller node\n"); 2852 else 2853 lpfc_register_new_vport(phba, vport, ndlp); 2854 mempool_free(mboxq, phba->mbox_mem_pool); 2855 return; 2856 } 2857 2858 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2859 lpfc_initial_fdisc(vport); 2860 else { 2861 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2862 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2863 "2606 No NPIV Fabric support\n"); 2864 } 2865 mempool_free(mboxq, phba->mbox_mem_pool); 2866 return; 2867 } 2868 2869 /** 2870 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2871 * @vport: pointer to lpfc_vport data structure. 2872 * 2873 * This function issue a init_vpi mailbox command to initialize 2874 * VPI for the vport. 2875 */ 2876 void 2877 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2878 { 2879 LPFC_MBOXQ_t *mboxq; 2880 int rc, vpi; 2881 2882 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2883 vpi = lpfc_alloc_vpi(vport->phba); 2884 if (!vpi) { 2885 lpfc_printf_vlog(vport, KERN_ERR, 2886 LOG_MBOX, 2887 "3303 Failed to obtain vport vpi\n"); 2888 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2889 return; 2890 } 2891 vport->vpi = vpi; 2892 } 2893 2894 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2895 if (!mboxq) { 2896 lpfc_printf_vlog(vport, KERN_ERR, 2897 LOG_MBOX, "2607 Failed to allocate " 2898 "init_vpi mailbox\n"); 2899 return; 2900 } 2901 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2902 mboxq->vport = vport; 2903 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2904 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2905 if (rc == MBX_NOT_FINISHED) { 2906 lpfc_printf_vlog(vport, KERN_ERR, 2907 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2908 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2909 } 2910 } 2911 2912 /** 2913 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2914 * @phba: pointer to lpfc hba data structure. 2915 * 2916 * This function loops through the list of vports on the @phba and issues an 2917 * FDISC if possible. 2918 */ 2919 void 2920 lpfc_start_fdiscs(struct lpfc_hba *phba) 2921 { 2922 struct lpfc_vport **vports; 2923 int i; 2924 2925 vports = lpfc_create_vport_work_array(phba); 2926 if (vports != NULL) { 2927 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2928 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2929 continue; 2930 /* There are no vpi for this vport */ 2931 if (vports[i]->vpi > phba->max_vpi) { 2932 lpfc_vport_set_state(vports[i], 2933 FC_VPORT_FAILED); 2934 continue; 2935 } 2936 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2937 lpfc_vport_set_state(vports[i], 2938 FC_VPORT_LINKDOWN); 2939 continue; 2940 } 2941 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2942 lpfc_issue_init_vpi(vports[i]); 2943 continue; 2944 } 2945 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2946 lpfc_initial_fdisc(vports[i]); 2947 else { 2948 lpfc_vport_set_state(vports[i], 2949 FC_VPORT_NO_FABRIC_SUPP); 2950 lpfc_printf_vlog(vports[i], KERN_ERR, 2951 LOG_ELS, 2952 "0259 No NPIV " 2953 "Fabric support\n"); 2954 } 2955 } 2956 } 2957 lpfc_destroy_vport_work_array(phba, vports); 2958 } 2959 2960 void 2961 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2962 { 2963 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 2964 struct lpfc_vport *vport = mboxq->vport; 2965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2966 2967 /* 2968 * VFI not supported for interface type 0, so ignore any mailbox 2969 * error (except VFI in use) and continue with the discovery. 2970 */ 2971 if (mboxq->u.mb.mbxStatus && 2972 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2973 LPFC_SLI_INTF_IF_TYPE_0) && 2974 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2975 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2976 "2018 REG_VFI mbxStatus error x%x " 2977 "HBA state x%x\n", 2978 mboxq->u.mb.mbxStatus, vport->port_state); 2979 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2980 /* FLOGI failed, use loop map to make discovery list */ 2981 lpfc_disc_list_loopmap(vport); 2982 /* Start discovery */ 2983 lpfc_disc_start(vport); 2984 goto out_free_mem; 2985 } 2986 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2987 goto out_free_mem; 2988 } 2989 2990 /* If the VFI is already registered, there is nothing else to do 2991 * Unless this was a VFI update and we are in PT2PT mode, then 2992 * we should drop through to set the port state to ready. 2993 */ 2994 if (vport->fc_flag & FC_VFI_REGISTERED) 2995 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2996 vport->fc_flag & FC_PT2PT)) 2997 goto out_free_mem; 2998 2999 /* The VPI is implicitly registered when the VFI is registered */ 3000 spin_lock_irq(shost->host_lock); 3001 vport->vpi_state |= LPFC_VPI_REGISTERED; 3002 vport->fc_flag |= FC_VFI_REGISTERED; 3003 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3004 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3005 spin_unlock_irq(shost->host_lock); 3006 3007 /* In case SLI4 FC loopback test, we are ready */ 3008 if ((phba->sli_rev == LPFC_SLI_REV4) && 3009 (phba->link_flag & LS_LOOPBACK_MODE)) { 3010 phba->link_state = LPFC_HBA_READY; 3011 goto out_free_mem; 3012 } 3013 3014 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3015 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3016 "alpacnt:%d LinkState:%x topology:%x\n", 3017 vport->port_state, vport->fc_flag, vport->fc_myDID, 3018 vport->phba->alpa_map[0], 3019 phba->link_state, phba->fc_topology); 3020 3021 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3022 /* 3023 * For private loop or for NPort pt2pt, 3024 * just start discovery and we are done. 3025 */ 3026 if ((vport->fc_flag & FC_PT2PT) || 3027 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3028 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3029 3030 /* Use loop map to make discovery list */ 3031 lpfc_disc_list_loopmap(vport); 3032 /* Start discovery */ 3033 if (vport->fc_flag & FC_PT2PT) 3034 vport->port_state = LPFC_VPORT_READY; 3035 else 3036 lpfc_disc_start(vport); 3037 } else { 3038 lpfc_start_fdiscs(phba); 3039 lpfc_do_scr_ns_plogi(phba, vport); 3040 } 3041 } 3042 3043 out_free_mem: 3044 mempool_free(mboxq, phba->mbox_mem_pool); 3045 if (dmabuf) { 3046 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3047 kfree(dmabuf); 3048 } 3049 return; 3050 } 3051 3052 static void 3053 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3054 { 3055 MAILBOX_t *mb = &pmb->u.mb; 3056 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3057 struct lpfc_vport *vport = pmb->vport; 3058 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3059 struct serv_parm *sp = &vport->fc_sparam; 3060 uint32_t ed_tov; 3061 3062 /* Check for error */ 3063 if (mb->mbxStatus) { 3064 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3065 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3066 "0319 READ_SPARAM mbxStatus error x%x " 3067 "hba state x%x>\n", 3068 mb->mbxStatus, vport->port_state); 3069 lpfc_linkdown(phba); 3070 goto out; 3071 } 3072 3073 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3074 sizeof (struct serv_parm)); 3075 3076 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3077 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3078 ed_tov = (ed_tov + 999999) / 1000000; 3079 3080 phba->fc_edtov = ed_tov; 3081 phba->fc_ratov = (2 * ed_tov) / 1000; 3082 if (phba->fc_ratov < FF_DEF_RATOV) { 3083 /* RA_TOV should be atleast 10sec for initial flogi */ 3084 phba->fc_ratov = FF_DEF_RATOV; 3085 } 3086 3087 lpfc_update_vport_wwn(vport); 3088 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3089 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3090 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3091 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3092 } 3093 3094 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3095 kfree(mp); 3096 mempool_free(pmb, phba->mbox_mem_pool); 3097 return; 3098 3099 out: 3100 pmb->ctx_buf = NULL; 3101 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3102 kfree(mp); 3103 lpfc_issue_clear_la(phba, vport); 3104 mempool_free(pmb, phba->mbox_mem_pool); 3105 return; 3106 } 3107 3108 static void 3109 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3110 { 3111 struct lpfc_vport *vport = phba->pport; 3112 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3113 struct Scsi_Host *shost; 3114 int i; 3115 struct lpfc_dmabuf *mp; 3116 int rc; 3117 struct fcf_record *fcf_record; 3118 uint32_t fc_flags = 0; 3119 3120 spin_lock_irq(&phba->hbalock); 3121 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3122 3123 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3124 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3125 case LPFC_LINK_SPEED_1GHZ: 3126 case LPFC_LINK_SPEED_2GHZ: 3127 case LPFC_LINK_SPEED_4GHZ: 3128 case LPFC_LINK_SPEED_8GHZ: 3129 case LPFC_LINK_SPEED_10GHZ: 3130 case LPFC_LINK_SPEED_16GHZ: 3131 case LPFC_LINK_SPEED_32GHZ: 3132 case LPFC_LINK_SPEED_64GHZ: 3133 case LPFC_LINK_SPEED_128GHZ: 3134 break; 3135 default: 3136 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3137 break; 3138 } 3139 } 3140 3141 if (phba->fc_topology && 3142 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3143 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3144 "3314 Toplogy changed was 0x%x is 0x%x\n", 3145 phba->fc_topology, 3146 bf_get(lpfc_mbx_read_top_topology, la)); 3147 phba->fc_topology_changed = 1; 3148 } 3149 3150 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3151 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3152 3153 shost = lpfc_shost_from_vport(vport); 3154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3155 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3156 3157 /* if npiv is enabled and this adapter supports npiv log 3158 * a message that npiv is not supported in this topology 3159 */ 3160 if (phba->cfg_enable_npiv && phba->max_vpi) 3161 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3162 "1309 Link Up Event npiv not supported in loop " 3163 "topology\n"); 3164 /* Get Loop Map information */ 3165 if (bf_get(lpfc_mbx_read_top_il, la)) 3166 fc_flags |= FC_LBIT; 3167 3168 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3169 i = la->lilpBde64.tus.f.bdeSize; 3170 3171 if (i == 0) { 3172 phba->alpa_map[0] = 0; 3173 } else { 3174 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3175 int numalpa, j, k; 3176 union { 3177 uint8_t pamap[16]; 3178 struct { 3179 uint32_t wd1; 3180 uint32_t wd2; 3181 uint32_t wd3; 3182 uint32_t wd4; 3183 } pa; 3184 } un; 3185 numalpa = phba->alpa_map[0]; 3186 j = 0; 3187 while (j < numalpa) { 3188 memset(un.pamap, 0, 16); 3189 for (k = 1; j < numalpa; k++) { 3190 un.pamap[k - 1] = 3191 phba->alpa_map[j + 1]; 3192 j++; 3193 if (k == 16) 3194 break; 3195 } 3196 /* Link Up Event ALPA map */ 3197 lpfc_printf_log(phba, 3198 KERN_WARNING, 3199 LOG_LINK_EVENT, 3200 "1304 Link Up Event " 3201 "ALPA map Data: x%x " 3202 "x%x x%x x%x\n", 3203 un.pa.wd1, un.pa.wd2, 3204 un.pa.wd3, un.pa.wd4); 3205 } 3206 } 3207 } 3208 } else { 3209 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3210 if (phba->max_vpi && phba->cfg_enable_npiv && 3211 (phba->sli_rev >= LPFC_SLI_REV3)) 3212 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3213 } 3214 vport->fc_myDID = phba->fc_pref_DID; 3215 fc_flags |= FC_LBIT; 3216 } 3217 spin_unlock_irq(&phba->hbalock); 3218 3219 if (fc_flags) { 3220 spin_lock_irq(shost->host_lock); 3221 vport->fc_flag |= fc_flags; 3222 spin_unlock_irq(shost->host_lock); 3223 } 3224 3225 lpfc_linkup(phba); 3226 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3227 if (!sparam_mbox) 3228 goto out; 3229 3230 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3231 if (rc) { 3232 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3233 goto out; 3234 } 3235 sparam_mbox->vport = vport; 3236 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3237 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3238 if (rc == MBX_NOT_FINISHED) { 3239 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3240 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3241 kfree(mp); 3242 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3243 goto out; 3244 } 3245 3246 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3247 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3248 if (!cfglink_mbox) 3249 goto out; 3250 vport->port_state = LPFC_LOCAL_CFG_LINK; 3251 lpfc_config_link(phba, cfglink_mbox); 3252 cfglink_mbox->vport = vport; 3253 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3254 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3255 if (rc == MBX_NOT_FINISHED) { 3256 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3257 goto out; 3258 } 3259 } else { 3260 vport->port_state = LPFC_VPORT_UNKNOWN; 3261 /* 3262 * Add the driver's default FCF record at FCF index 0 now. This 3263 * is phase 1 implementation that support FCF index 0 and driver 3264 * defaults. 3265 */ 3266 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3267 fcf_record = kzalloc(sizeof(struct fcf_record), 3268 GFP_KERNEL); 3269 if (unlikely(!fcf_record)) { 3270 lpfc_printf_log(phba, KERN_ERR, 3271 LOG_MBOX | LOG_SLI, 3272 "2554 Could not allocate memory for " 3273 "fcf record\n"); 3274 rc = -ENODEV; 3275 goto out; 3276 } 3277 3278 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3279 LPFC_FCOE_FCF_DEF_INDEX); 3280 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3281 if (unlikely(rc)) { 3282 lpfc_printf_log(phba, KERN_ERR, 3283 LOG_MBOX | LOG_SLI, 3284 "2013 Could not manually add FCF " 3285 "record 0, status %d\n", rc); 3286 rc = -ENODEV; 3287 kfree(fcf_record); 3288 goto out; 3289 } 3290 kfree(fcf_record); 3291 } 3292 /* 3293 * The driver is expected to do FIP/FCF. Call the port 3294 * and get the FCF Table. 3295 */ 3296 spin_lock_irq(&phba->hbalock); 3297 if (phba->hba_flag & FCF_TS_INPROG) { 3298 spin_unlock_irq(&phba->hbalock); 3299 return; 3300 } 3301 /* This is the initial FCF discovery scan */ 3302 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3303 spin_unlock_irq(&phba->hbalock); 3304 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3305 "2778 Start FCF table scan at linkup\n"); 3306 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3307 LPFC_FCOE_FCF_GET_FIRST); 3308 if (rc) { 3309 spin_lock_irq(&phba->hbalock); 3310 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3311 spin_unlock_irq(&phba->hbalock); 3312 goto out; 3313 } 3314 /* Reset FCF roundrobin bmask for new discovery */ 3315 lpfc_sli4_clear_fcf_rr_bmask(phba); 3316 } 3317 3318 return; 3319 out: 3320 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3321 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3322 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3323 vport->port_state, sparam_mbox, cfglink_mbox); 3324 lpfc_issue_clear_la(phba, vport); 3325 return; 3326 } 3327 3328 static void 3329 lpfc_enable_la(struct lpfc_hba *phba) 3330 { 3331 uint32_t control; 3332 struct lpfc_sli *psli = &phba->sli; 3333 spin_lock_irq(&phba->hbalock); 3334 psli->sli_flag |= LPFC_PROCESS_LA; 3335 if (phba->sli_rev <= LPFC_SLI_REV3) { 3336 control = readl(phba->HCregaddr); 3337 control |= HC_LAINT_ENA; 3338 writel(control, phba->HCregaddr); 3339 readl(phba->HCregaddr); /* flush */ 3340 } 3341 spin_unlock_irq(&phba->hbalock); 3342 } 3343 3344 static void 3345 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3346 { 3347 lpfc_linkdown(phba); 3348 lpfc_enable_la(phba); 3349 lpfc_unregister_unused_fcf(phba); 3350 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3351 } 3352 3353 3354 /* 3355 * This routine handles processing a READ_TOPOLOGY mailbox 3356 * command upon completion. It is setup in the LPFC_MBOXQ 3357 * as the completion routine when the command is 3358 * handed off to the SLI layer. SLI4 only. 3359 */ 3360 void 3361 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3362 { 3363 struct lpfc_vport *vport = pmb->vport; 3364 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3365 struct lpfc_mbx_read_top *la; 3366 struct lpfc_sli_ring *pring; 3367 MAILBOX_t *mb = &pmb->u.mb; 3368 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3369 uint8_t attn_type; 3370 3371 /* Unblock ELS traffic */ 3372 pring = lpfc_phba_elsring(phba); 3373 if (pring) 3374 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3375 3376 /* Check for error */ 3377 if (mb->mbxStatus) { 3378 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3379 "1307 READ_LA mbox error x%x state x%x\n", 3380 mb->mbxStatus, vport->port_state); 3381 lpfc_mbx_issue_link_down(phba); 3382 phba->link_state = LPFC_HBA_ERROR; 3383 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3384 } 3385 3386 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3387 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3388 3389 memcpy(&phba->alpa_map[0], mp->virt, 128); 3390 3391 spin_lock_irq(shost->host_lock); 3392 if (bf_get(lpfc_mbx_read_top_pb, la)) 3393 vport->fc_flag |= FC_BYPASSED_MODE; 3394 else 3395 vport->fc_flag &= ~FC_BYPASSED_MODE; 3396 spin_unlock_irq(shost->host_lock); 3397 3398 if (phba->fc_eventTag <= la->eventTag) { 3399 phba->fc_stat.LinkMultiEvent++; 3400 if (attn_type == LPFC_ATT_LINK_UP) 3401 if (phba->fc_eventTag != 0) 3402 lpfc_linkdown(phba); 3403 } 3404 3405 phba->fc_eventTag = la->eventTag; 3406 if (phba->sli_rev < LPFC_SLI_REV4) { 3407 spin_lock_irq(&phba->hbalock); 3408 if (bf_get(lpfc_mbx_read_top_mm, la)) 3409 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3410 else 3411 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3412 spin_unlock_irq(&phba->hbalock); 3413 } 3414 3415 phba->link_events++; 3416 if ((attn_type == LPFC_ATT_LINK_UP) && 3417 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3418 phba->fc_stat.LinkUp++; 3419 if (phba->link_flag & LS_LOOPBACK_MODE) { 3420 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3421 "1306 Link Up Event in loop back mode " 3422 "x%x received Data: x%x x%x x%x x%x\n", 3423 la->eventTag, phba->fc_eventTag, 3424 bf_get(lpfc_mbx_read_top_alpa_granted, 3425 la), 3426 bf_get(lpfc_mbx_read_top_link_spd, la), 3427 phba->alpa_map[0]); 3428 } else { 3429 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3430 "1303 Link Up Event x%x received " 3431 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3432 la->eventTag, phba->fc_eventTag, 3433 bf_get(lpfc_mbx_read_top_alpa_granted, 3434 la), 3435 bf_get(lpfc_mbx_read_top_link_spd, la), 3436 phba->alpa_map[0], 3437 bf_get(lpfc_mbx_read_top_mm, la), 3438 bf_get(lpfc_mbx_read_top_fa, la), 3439 phba->wait_4_mlo_maint_flg); 3440 } 3441 lpfc_mbx_process_link_up(phba, la); 3442 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3443 attn_type == LPFC_ATT_UNEXP_WWPN) { 3444 phba->fc_stat.LinkDown++; 3445 if (phba->link_flag & LS_LOOPBACK_MODE) 3446 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3447 "1308 Link Down Event in loop back mode " 3448 "x%x received " 3449 "Data: x%x x%x x%x\n", 3450 la->eventTag, phba->fc_eventTag, 3451 phba->pport->port_state, vport->fc_flag); 3452 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3453 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3454 "1313 Link Down UNEXP WWPN Event x%x received " 3455 "Data: x%x x%x x%x x%x x%x\n", 3456 la->eventTag, phba->fc_eventTag, 3457 phba->pport->port_state, vport->fc_flag, 3458 bf_get(lpfc_mbx_read_top_mm, la), 3459 bf_get(lpfc_mbx_read_top_fa, la)); 3460 else 3461 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3462 "1305 Link Down Event x%x received " 3463 "Data: x%x x%x x%x x%x x%x\n", 3464 la->eventTag, phba->fc_eventTag, 3465 phba->pport->port_state, vport->fc_flag, 3466 bf_get(lpfc_mbx_read_top_mm, la), 3467 bf_get(lpfc_mbx_read_top_fa, la)); 3468 lpfc_mbx_issue_link_down(phba); 3469 } 3470 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3471 attn_type == LPFC_ATT_LINK_UP) { 3472 if (phba->link_state != LPFC_LINK_DOWN) { 3473 phba->fc_stat.LinkDown++; 3474 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3475 "1312 Link Down Event x%x received " 3476 "Data: x%x x%x x%x\n", 3477 la->eventTag, phba->fc_eventTag, 3478 phba->pport->port_state, vport->fc_flag); 3479 lpfc_mbx_issue_link_down(phba); 3480 } else 3481 lpfc_enable_la(phba); 3482 3483 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3484 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3485 "Data: x%x x%x x%x\n", 3486 la->eventTag, phba->fc_eventTag, 3487 phba->pport->port_state, vport->fc_flag); 3488 /* 3489 * The cmnd that triggered this will be waiting for this 3490 * signal. 3491 */ 3492 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3493 if (phba->wait_4_mlo_maint_flg) { 3494 phba->wait_4_mlo_maint_flg = 0; 3495 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3496 } 3497 } 3498 3499 if ((phba->sli_rev < LPFC_SLI_REV4) && 3500 bf_get(lpfc_mbx_read_top_fa, la)) { 3501 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3502 lpfc_issue_clear_la(phba, vport); 3503 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3504 "1311 fa %d\n", 3505 bf_get(lpfc_mbx_read_top_fa, la)); 3506 } 3507 3508 lpfc_mbx_cmpl_read_topology_free_mbuf: 3509 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3510 kfree(mp); 3511 mempool_free(pmb, phba->mbox_mem_pool); 3512 return; 3513 } 3514 3515 /* 3516 * This routine handles processing a REG_LOGIN mailbox 3517 * command upon completion. It is setup in the LPFC_MBOXQ 3518 * as the completion routine when the command is 3519 * handed off to the SLI layer. 3520 */ 3521 void 3522 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3523 { 3524 struct lpfc_vport *vport = pmb->vport; 3525 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3526 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3528 3529 pmb->ctx_buf = NULL; 3530 pmb->ctx_ndlp = NULL; 3531 3532 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3533 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3534 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3535 kref_read(&ndlp->kref), 3536 ndlp->nlp_usg_map, ndlp); 3537 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3538 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3539 3540 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3541 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3542 /* We rcvd a rscn after issuing this 3543 * mbox reg login, we may have cycled 3544 * back through the state and be 3545 * back at reg login state so this 3546 * mbox needs to be ignored becase 3547 * there is another reg login in 3548 * process. 3549 */ 3550 spin_lock_irq(shost->host_lock); 3551 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3552 spin_unlock_irq(shost->host_lock); 3553 3554 /* 3555 * We cannot leave the RPI registered because 3556 * if we go thru discovery again for this ndlp 3557 * a subsequent REG_RPI will fail. 3558 */ 3559 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3560 lpfc_unreg_rpi(vport, ndlp); 3561 } 3562 3563 /* Call state machine */ 3564 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3565 3566 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3567 kfree(mp); 3568 mempool_free(pmb, phba->mbox_mem_pool); 3569 /* decrement the node reference count held for this callback 3570 * function. 3571 */ 3572 lpfc_nlp_put(ndlp); 3573 3574 return; 3575 } 3576 3577 static void 3578 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3579 { 3580 MAILBOX_t *mb = &pmb->u.mb; 3581 struct lpfc_vport *vport = pmb->vport; 3582 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3583 3584 switch (mb->mbxStatus) { 3585 case 0x0011: 3586 case 0x0020: 3587 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3588 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3589 mb->mbxStatus); 3590 break; 3591 /* If VPI is busy, reset the HBA */ 3592 case 0x9700: 3593 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3594 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3595 vport->vpi, mb->mbxStatus); 3596 if (!(phba->pport->load_flag & FC_UNLOADING)) 3597 lpfc_workq_post_event(phba, NULL, NULL, 3598 LPFC_EVT_RESET_HBA); 3599 } 3600 spin_lock_irq(shost->host_lock); 3601 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3602 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3603 spin_unlock_irq(shost->host_lock); 3604 vport->unreg_vpi_cmpl = VPORT_OK; 3605 mempool_free(pmb, phba->mbox_mem_pool); 3606 lpfc_cleanup_vports_rrqs(vport, NULL); 3607 /* 3608 * This shost reference might have been taken at the beginning of 3609 * lpfc_vport_delete() 3610 */ 3611 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3612 scsi_host_put(shost); 3613 } 3614 3615 int 3616 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3617 { 3618 struct lpfc_hba *phba = vport->phba; 3619 LPFC_MBOXQ_t *mbox; 3620 int rc; 3621 3622 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3623 if (!mbox) 3624 return 1; 3625 3626 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3627 mbox->vport = vport; 3628 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3629 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3630 if (rc == MBX_NOT_FINISHED) { 3631 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3632 "1800 Could not issue unreg_vpi\n"); 3633 mempool_free(mbox, phba->mbox_mem_pool); 3634 vport->unreg_vpi_cmpl = VPORT_ERROR; 3635 return rc; 3636 } 3637 return 0; 3638 } 3639 3640 static void 3641 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3642 { 3643 struct lpfc_vport *vport = pmb->vport; 3644 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3645 MAILBOX_t *mb = &pmb->u.mb; 3646 3647 switch (mb->mbxStatus) { 3648 case 0x0011: 3649 case 0x9601: 3650 case 0x9602: 3651 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3652 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3653 mb->mbxStatus); 3654 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3655 spin_lock_irq(shost->host_lock); 3656 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3657 spin_unlock_irq(shost->host_lock); 3658 vport->fc_myDID = 0; 3659 3660 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3661 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3662 if (phba->nvmet_support) 3663 lpfc_nvmet_update_targetport(phba); 3664 else 3665 lpfc_nvme_update_localport(vport); 3666 } 3667 goto out; 3668 } 3669 3670 spin_lock_irq(shost->host_lock); 3671 vport->vpi_state |= LPFC_VPI_REGISTERED; 3672 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3673 spin_unlock_irq(shost->host_lock); 3674 vport->num_disc_nodes = 0; 3675 /* go thru NPR list and issue ELS PLOGIs */ 3676 if (vport->fc_npr_cnt) 3677 lpfc_els_disc_plogi(vport); 3678 3679 if (!vport->num_disc_nodes) { 3680 spin_lock_irq(shost->host_lock); 3681 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3682 spin_unlock_irq(shost->host_lock); 3683 lpfc_can_disctmo(vport); 3684 } 3685 vport->port_state = LPFC_VPORT_READY; 3686 3687 out: 3688 mempool_free(pmb, phba->mbox_mem_pool); 3689 return; 3690 } 3691 3692 /** 3693 * lpfc_create_static_vport - Read HBA config region to create static vports. 3694 * @phba: pointer to lpfc hba data structure. 3695 * 3696 * This routine issue a DUMP mailbox command for config region 22 to get 3697 * the list of static vports to be created. The function create vports 3698 * based on the information returned from the HBA. 3699 **/ 3700 void 3701 lpfc_create_static_vport(struct lpfc_hba *phba) 3702 { 3703 LPFC_MBOXQ_t *pmb = NULL; 3704 MAILBOX_t *mb; 3705 struct static_vport_info *vport_info; 3706 int mbx_wait_rc = 0, i; 3707 struct fc_vport_identifiers vport_id; 3708 struct fc_vport *new_fc_vport; 3709 struct Scsi_Host *shost; 3710 struct lpfc_vport *vport; 3711 uint16_t offset = 0; 3712 uint8_t *vport_buff; 3713 struct lpfc_dmabuf *mp; 3714 uint32_t byte_count = 0; 3715 3716 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3717 if (!pmb) { 3718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3719 "0542 lpfc_create_static_vport failed to" 3720 " allocate mailbox memory\n"); 3721 return; 3722 } 3723 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3724 mb = &pmb->u.mb; 3725 3726 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3727 if (!vport_info) { 3728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3729 "0543 lpfc_create_static_vport failed to" 3730 " allocate vport_info\n"); 3731 mempool_free(pmb, phba->mbox_mem_pool); 3732 return; 3733 } 3734 3735 vport_buff = (uint8_t *) vport_info; 3736 do { 3737 /* free dma buffer from previous round */ 3738 if (pmb->ctx_buf) { 3739 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3740 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3741 kfree(mp); 3742 } 3743 if (lpfc_dump_static_vport(phba, pmb, offset)) 3744 goto out; 3745 3746 pmb->vport = phba->pport; 3747 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3748 LPFC_MBOX_TMO); 3749 3750 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3751 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3752 "0544 lpfc_create_static_vport failed to" 3753 " issue dump mailbox command ret 0x%x " 3754 "status 0x%x\n", 3755 mbx_wait_rc, mb->mbxStatus); 3756 goto out; 3757 } 3758 3759 if (phba->sli_rev == LPFC_SLI_REV4) { 3760 byte_count = pmb->u.mqe.un.mb_words[5]; 3761 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3762 if (byte_count > sizeof(struct static_vport_info) - 3763 offset) 3764 byte_count = sizeof(struct static_vport_info) 3765 - offset; 3766 memcpy(vport_buff + offset, mp->virt, byte_count); 3767 offset += byte_count; 3768 } else { 3769 if (mb->un.varDmp.word_cnt > 3770 sizeof(struct static_vport_info) - offset) 3771 mb->un.varDmp.word_cnt = 3772 sizeof(struct static_vport_info) 3773 - offset; 3774 byte_count = mb->un.varDmp.word_cnt; 3775 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3776 vport_buff + offset, 3777 byte_count); 3778 3779 offset += byte_count; 3780 } 3781 3782 } while (byte_count && 3783 offset < sizeof(struct static_vport_info)); 3784 3785 3786 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3787 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3788 != VPORT_INFO_REV)) { 3789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3790 "0545 lpfc_create_static_vport bad" 3791 " information header 0x%x 0x%x\n", 3792 le32_to_cpu(vport_info->signature), 3793 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3794 3795 goto out; 3796 } 3797 3798 shost = lpfc_shost_from_vport(phba->pport); 3799 3800 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3801 memset(&vport_id, 0, sizeof(vport_id)); 3802 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3803 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3804 if (!vport_id.port_name || !vport_id.node_name) 3805 continue; 3806 3807 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3808 vport_id.vport_type = FC_PORTTYPE_NPIV; 3809 vport_id.disable = false; 3810 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3811 3812 if (!new_fc_vport) { 3813 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3814 "0546 lpfc_create_static_vport failed to" 3815 " create vport\n"); 3816 continue; 3817 } 3818 3819 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3820 vport->vport_flag |= STATIC_VPORT; 3821 } 3822 3823 out: 3824 kfree(vport_info); 3825 if (mbx_wait_rc != MBX_TIMEOUT) { 3826 if (pmb->ctx_buf) { 3827 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3828 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3829 kfree(mp); 3830 } 3831 mempool_free(pmb, phba->mbox_mem_pool); 3832 } 3833 3834 return; 3835 } 3836 3837 /* 3838 * This routine handles processing a Fabric REG_LOGIN mailbox 3839 * command upon completion. It is setup in the LPFC_MBOXQ 3840 * as the completion routine when the command is 3841 * handed off to the SLI layer. 3842 */ 3843 void 3844 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3845 { 3846 struct lpfc_vport *vport = pmb->vport; 3847 MAILBOX_t *mb = &pmb->u.mb; 3848 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3849 struct lpfc_nodelist *ndlp; 3850 struct Scsi_Host *shost; 3851 3852 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3853 pmb->ctx_ndlp = NULL; 3854 pmb->ctx_buf = NULL; 3855 3856 if (mb->mbxStatus) { 3857 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3858 "0258 Register Fabric login error: 0x%x\n", 3859 mb->mbxStatus); 3860 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3861 kfree(mp); 3862 mempool_free(pmb, phba->mbox_mem_pool); 3863 3864 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3865 /* FLOGI failed, use loop map to make discovery list */ 3866 lpfc_disc_list_loopmap(vport); 3867 3868 /* Start discovery */ 3869 lpfc_disc_start(vport); 3870 /* Decrement the reference count to ndlp after the 3871 * reference to the ndlp are done. 3872 */ 3873 lpfc_nlp_put(ndlp); 3874 return; 3875 } 3876 3877 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3878 /* Decrement the reference count to ndlp after the reference 3879 * to the ndlp are done. 3880 */ 3881 lpfc_nlp_put(ndlp); 3882 return; 3883 } 3884 3885 if (phba->sli_rev < LPFC_SLI_REV4) 3886 ndlp->nlp_rpi = mb->un.varWords[0]; 3887 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3888 ndlp->nlp_type |= NLP_FABRIC; 3889 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3890 3891 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3892 /* when physical port receive logo donot start 3893 * vport discovery */ 3894 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3895 lpfc_start_fdiscs(phba); 3896 else { 3897 shost = lpfc_shost_from_vport(vport); 3898 spin_lock_irq(shost->host_lock); 3899 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3900 spin_unlock_irq(shost->host_lock); 3901 } 3902 lpfc_do_scr_ns_plogi(phba, vport); 3903 } 3904 3905 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3906 kfree(mp); 3907 mempool_free(pmb, phba->mbox_mem_pool); 3908 3909 /* Drop the reference count from the mbox at the end after 3910 * all the current reference to the ndlp have been done. 3911 */ 3912 lpfc_nlp_put(ndlp); 3913 return; 3914 } 3915 3916 /* 3917 * This routine will issue a GID_FT for each FC4 Type supported 3918 * by the driver. ALL GID_FTs must complete before discovery is started. 3919 */ 3920 int 3921 lpfc_issue_gidft(struct lpfc_vport *vport) 3922 { 3923 /* Good status, issue CT Request to NameServer */ 3924 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3925 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3926 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3927 /* Cannot issue NameServer FCP Query, so finish up 3928 * discovery 3929 */ 3930 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3931 "0604 %s FC TYPE %x %s\n", 3932 "Failed to issue GID_FT to ", 3933 FC_TYPE_FCP, 3934 "Finishing discovery."); 3935 return 0; 3936 } 3937 vport->gidft_inp++; 3938 } 3939 3940 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3941 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3942 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3943 /* Cannot issue NameServer NVME Query, so finish up 3944 * discovery 3945 */ 3946 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3947 "0605 %s FC_TYPE %x %s %d\n", 3948 "Failed to issue GID_FT to ", 3949 FC_TYPE_NVME, 3950 "Finishing discovery: gidftinp ", 3951 vport->gidft_inp); 3952 if (vport->gidft_inp == 0) 3953 return 0; 3954 } else 3955 vport->gidft_inp++; 3956 } 3957 return vport->gidft_inp; 3958 } 3959 3960 /** 3961 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 3962 * @vport: The virtual port for which this call is being executed. 3963 * 3964 * This routine will issue a GID_PT to get a list of all N_Ports 3965 * 3966 * Return value : 3967 * 0 - Failure to issue a GID_PT 3968 * 1 - GID_PT issued 3969 **/ 3970 int 3971 lpfc_issue_gidpt(struct lpfc_vport *vport) 3972 { 3973 /* Good status, issue CT Request to NameServer */ 3974 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 3975 /* Cannot issue NameServer FCP Query, so finish up 3976 * discovery 3977 */ 3978 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3979 "0606 %s Port TYPE %x %s\n", 3980 "Failed to issue GID_PT to ", 3981 GID_PT_N_PORT, 3982 "Finishing discovery."); 3983 return 0; 3984 } 3985 vport->gidft_inp++; 3986 return 1; 3987 } 3988 3989 /* 3990 * This routine handles processing a NameServer REG_LOGIN mailbox 3991 * command upon completion. It is setup in the LPFC_MBOXQ 3992 * as the completion routine when the command is 3993 * handed off to the SLI layer. 3994 */ 3995 void 3996 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3997 { 3998 MAILBOX_t *mb = &pmb->u.mb; 3999 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4000 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4001 struct lpfc_vport *vport = pmb->vport; 4002 4003 pmb->ctx_buf = NULL; 4004 pmb->ctx_ndlp = NULL; 4005 vport->gidft_inp = 0; 4006 4007 if (mb->mbxStatus) { 4008 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4009 "0260 Register NameServer error: 0x%x\n", 4010 mb->mbxStatus); 4011 4012 out: 4013 /* decrement the node reference count held for this 4014 * callback function. 4015 */ 4016 lpfc_nlp_put(ndlp); 4017 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4018 kfree(mp); 4019 mempool_free(pmb, phba->mbox_mem_pool); 4020 4021 /* If no other thread is using the ndlp, free it */ 4022 lpfc_nlp_not_used(ndlp); 4023 4024 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4025 /* 4026 * RegLogin failed, use loop map to make discovery 4027 * list 4028 */ 4029 lpfc_disc_list_loopmap(vport); 4030 4031 /* Start discovery */ 4032 lpfc_disc_start(vport); 4033 return; 4034 } 4035 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4036 return; 4037 } 4038 4039 if (phba->sli_rev < LPFC_SLI_REV4) 4040 ndlp->nlp_rpi = mb->un.varWords[0]; 4041 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4042 ndlp->nlp_type |= NLP_FABRIC; 4043 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4044 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4045 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 4046 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4047 kref_read(&ndlp->kref), 4048 ndlp->nlp_usg_map, ndlp); 4049 4050 if (vport->port_state < LPFC_VPORT_READY) { 4051 /* Link up discovery requires Fabric registration. */ 4052 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4053 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4054 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4055 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4056 4057 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4058 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4059 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4060 4061 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4062 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4063 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4064 FC_TYPE_NVME); 4065 4066 /* Issue SCR just before NameServer GID_FT Query */ 4067 lpfc_issue_els_scr(vport, SCR_DID, 0); 4068 } 4069 4070 vport->fc_ns_retry = 0; 4071 if (lpfc_issue_gidft(vport) == 0) 4072 goto out; 4073 4074 /* 4075 * At this point in time we may need to wait for multiple 4076 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4077 * 4078 * decrement the node reference count held for this 4079 * callback function. 4080 */ 4081 lpfc_nlp_put(ndlp); 4082 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4083 kfree(mp); 4084 mempool_free(pmb, phba->mbox_mem_pool); 4085 4086 return; 4087 } 4088 4089 static void 4090 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4091 { 4092 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4093 struct fc_rport *rport; 4094 struct lpfc_rport_data *rdata; 4095 struct fc_rport_identifiers rport_ids; 4096 struct lpfc_hba *phba = vport->phba; 4097 4098 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4099 return; 4100 4101 /* Remote port has reappeared. Re-register w/ FC transport */ 4102 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4103 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4104 rport_ids.port_id = ndlp->nlp_DID; 4105 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4106 4107 /* 4108 * We leave our node pointer in rport->dd_data when we unregister a 4109 * FCP target port. But fc_remote_port_add zeros the space to which 4110 * rport->dd_data points. So, if we're reusing a previously 4111 * registered port, drop the reference that we took the last time we 4112 * registered the port. 4113 */ 4114 rport = ndlp->rport; 4115 if (rport) { 4116 rdata = rport->dd_data; 4117 /* break the link before dropping the ref */ 4118 ndlp->rport = NULL; 4119 if (rdata) { 4120 if (rdata->pnode == ndlp) 4121 lpfc_nlp_put(ndlp); 4122 rdata->pnode = NULL; 4123 } 4124 /* drop reference for earlier registeration */ 4125 put_device(&rport->dev); 4126 } 4127 4128 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4129 "rport add: did:x%x flg:x%x type x%x", 4130 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4131 4132 /* Don't add the remote port if unloading. */ 4133 if (vport->load_flag & FC_UNLOADING) 4134 return; 4135 4136 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4137 if (!rport || !get_device(&rport->dev)) { 4138 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4139 "Warning: fc_remote_port_add failed\n"); 4140 return; 4141 } 4142 4143 /* initialize static port data */ 4144 rport->maxframe_size = ndlp->nlp_maxframe; 4145 rport->supported_classes = ndlp->nlp_class_sup; 4146 rdata = rport->dd_data; 4147 rdata->pnode = lpfc_nlp_get(ndlp); 4148 4149 if (ndlp->nlp_type & NLP_FCP_TARGET) 4150 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4151 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4152 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4153 4154 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4155 fc_remote_port_rolechg(rport, rport_ids.roles); 4156 4157 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4158 "3183 rport register x%06x, rport %p role x%x\n", 4159 ndlp->nlp_DID, rport, rport_ids.roles); 4160 4161 if ((rport->scsi_target_id != -1) && 4162 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4163 ndlp->nlp_sid = rport->scsi_target_id; 4164 } 4165 return; 4166 } 4167 4168 static void 4169 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4170 { 4171 struct fc_rport *rport = ndlp->rport; 4172 struct lpfc_vport *vport = ndlp->vport; 4173 4174 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4175 return; 4176 4177 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4178 "rport delete: did:x%x flg:x%x type x%x", 4179 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4180 4181 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4182 "3184 rport unregister x%06x, rport %p\n", 4183 ndlp->nlp_DID, rport); 4184 4185 fc_remote_port_delete(rport); 4186 4187 return; 4188 } 4189 4190 static void 4191 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4192 { 4193 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4194 4195 spin_lock_irq(shost->host_lock); 4196 switch (state) { 4197 case NLP_STE_UNUSED_NODE: 4198 vport->fc_unused_cnt += count; 4199 break; 4200 case NLP_STE_PLOGI_ISSUE: 4201 vport->fc_plogi_cnt += count; 4202 break; 4203 case NLP_STE_ADISC_ISSUE: 4204 vport->fc_adisc_cnt += count; 4205 break; 4206 case NLP_STE_REG_LOGIN_ISSUE: 4207 vport->fc_reglogin_cnt += count; 4208 break; 4209 case NLP_STE_PRLI_ISSUE: 4210 vport->fc_prli_cnt += count; 4211 break; 4212 case NLP_STE_UNMAPPED_NODE: 4213 vport->fc_unmap_cnt += count; 4214 break; 4215 case NLP_STE_MAPPED_NODE: 4216 vport->fc_map_cnt += count; 4217 break; 4218 case NLP_STE_NPR_NODE: 4219 if (vport->fc_npr_cnt == 0 && count == -1) 4220 vport->fc_npr_cnt = 0; 4221 else 4222 vport->fc_npr_cnt += count; 4223 break; 4224 } 4225 spin_unlock_irq(shost->host_lock); 4226 } 4227 4228 static void 4229 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4230 int old_state, int new_state) 4231 { 4232 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4233 4234 if (new_state == NLP_STE_UNMAPPED_NODE) { 4235 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4236 ndlp->nlp_type |= NLP_FC_NODE; 4237 } 4238 if (new_state == NLP_STE_MAPPED_NODE) 4239 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4240 if (new_state == NLP_STE_NPR_NODE) 4241 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4242 4243 /* FCP and NVME Transport interface */ 4244 if ((old_state == NLP_STE_MAPPED_NODE || 4245 old_state == NLP_STE_UNMAPPED_NODE)) { 4246 if (ndlp->rport) { 4247 vport->phba->nport_event_cnt++; 4248 lpfc_unregister_remote_port(ndlp); 4249 } 4250 4251 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4252 vport->phba->nport_event_cnt++; 4253 if (vport->phba->nvmet_support == 0) { 4254 /* Start devloss if target. */ 4255 if (ndlp->nlp_type & NLP_NVME_TARGET) 4256 lpfc_nvme_unregister_port(vport, ndlp); 4257 } else { 4258 /* NVMET has no upcall. */ 4259 lpfc_nlp_put(ndlp); 4260 } 4261 } 4262 } 4263 4264 /* FCP and NVME Transport interfaces */ 4265 4266 if (new_state == NLP_STE_MAPPED_NODE || 4267 new_state == NLP_STE_UNMAPPED_NODE) { 4268 if (ndlp->nlp_fc4_type || 4269 ndlp->nlp_DID == Fabric_DID || 4270 ndlp->nlp_DID == NameServer_DID || 4271 ndlp->nlp_DID == FDMI_DID) { 4272 vport->phba->nport_event_cnt++; 4273 /* 4274 * Tell the fc transport about the port, if we haven't 4275 * already. If we have, and it's a scsi entity, be 4276 */ 4277 lpfc_register_remote_port(vport, ndlp); 4278 } 4279 /* Notify the NVME transport of this new rport. */ 4280 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4281 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4282 if (vport->phba->nvmet_support == 0) { 4283 /* Register this rport with the transport. 4284 * Only NVME Target Rports are registered with 4285 * the transport. 4286 */ 4287 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4288 vport->phba->nport_event_cnt++; 4289 lpfc_nvme_register_port(vport, ndlp); 4290 } 4291 } else { 4292 /* Just take an NDLP ref count since the 4293 * target does not register rports. 4294 */ 4295 lpfc_nlp_get(ndlp); 4296 } 4297 } 4298 } 4299 4300 if ((new_state == NLP_STE_MAPPED_NODE) && 4301 (vport->stat_data_enabled)) { 4302 /* 4303 * A new target is discovered, if there is no buffer for 4304 * statistical data collection allocate buffer. 4305 */ 4306 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4307 sizeof(struct lpfc_scsicmd_bkt), 4308 GFP_KERNEL); 4309 4310 if (!ndlp->lat_data) 4311 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4312 "0286 lpfc_nlp_state_cleanup failed to " 4313 "allocate statistical data buffer DID " 4314 "0x%x\n", ndlp->nlp_DID); 4315 } 4316 /* 4317 * If the node just added to Mapped list was an FCP target, 4318 * but the remote port registration failed or assigned a target 4319 * id outside the presentable range - move the node to the 4320 * Unmapped List. 4321 */ 4322 if ((new_state == NLP_STE_MAPPED_NODE) && 4323 (ndlp->nlp_type & NLP_FCP_TARGET) && 4324 (!ndlp->rport || 4325 ndlp->rport->scsi_target_id == -1 || 4326 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4327 spin_lock_irq(shost->host_lock); 4328 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4329 spin_unlock_irq(shost->host_lock); 4330 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4331 } 4332 } 4333 4334 static char * 4335 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4336 { 4337 static char *states[] = { 4338 [NLP_STE_UNUSED_NODE] = "UNUSED", 4339 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4340 [NLP_STE_ADISC_ISSUE] = "ADISC", 4341 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4342 [NLP_STE_PRLI_ISSUE] = "PRLI", 4343 [NLP_STE_LOGO_ISSUE] = "LOGO", 4344 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4345 [NLP_STE_MAPPED_NODE] = "MAPPED", 4346 [NLP_STE_NPR_NODE] = "NPR", 4347 }; 4348 4349 if (state < NLP_STE_MAX_STATE && states[state]) 4350 strlcpy(buffer, states[state], size); 4351 else 4352 snprintf(buffer, size, "unknown (%d)", state); 4353 return buffer; 4354 } 4355 4356 void 4357 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4358 int state) 4359 { 4360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4361 int old_state = ndlp->nlp_state; 4362 char name1[16], name2[16]; 4363 4364 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4365 "0904 NPort state transition x%06x, %s -> %s\n", 4366 ndlp->nlp_DID, 4367 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4368 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4369 4370 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4371 "node statechg did:x%x old:%d ste:%d", 4372 ndlp->nlp_DID, old_state, state); 4373 4374 if (old_state == NLP_STE_NPR_NODE && 4375 state != NLP_STE_NPR_NODE) 4376 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4377 if (old_state == NLP_STE_UNMAPPED_NODE) { 4378 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4379 ndlp->nlp_type &= ~NLP_FC_NODE; 4380 } 4381 4382 if (list_empty(&ndlp->nlp_listp)) { 4383 spin_lock_irq(shost->host_lock); 4384 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4385 spin_unlock_irq(shost->host_lock); 4386 } else if (old_state) 4387 lpfc_nlp_counters(vport, old_state, -1); 4388 4389 ndlp->nlp_state = state; 4390 lpfc_nlp_counters(vport, state, 1); 4391 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4392 } 4393 4394 void 4395 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4396 { 4397 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4398 4399 if (list_empty(&ndlp->nlp_listp)) { 4400 spin_lock_irq(shost->host_lock); 4401 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4402 spin_unlock_irq(shost->host_lock); 4403 } 4404 } 4405 4406 void 4407 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4408 { 4409 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4410 4411 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4412 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4413 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4414 spin_lock_irq(shost->host_lock); 4415 list_del_init(&ndlp->nlp_listp); 4416 spin_unlock_irq(shost->host_lock); 4417 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4418 NLP_STE_UNUSED_NODE); 4419 } 4420 4421 static void 4422 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4423 { 4424 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4425 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4426 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4427 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4428 NLP_STE_UNUSED_NODE); 4429 } 4430 /** 4431 * lpfc_initialize_node - Initialize all fields of node object 4432 * @vport: Pointer to Virtual Port object. 4433 * @ndlp: Pointer to FC node object. 4434 * @did: FC_ID of the node. 4435 * 4436 * This function is always called when node object need to be initialized. 4437 * It initializes all the fields of the node object. Although the reference 4438 * to phba from @ndlp can be obtained indirectly through it's reference to 4439 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4440 * to the life-span of the @ndlp might go beyond the existence of @vport as 4441 * the final release of ndlp is determined by its reference count. And, the 4442 * operation on @ndlp needs the reference to phba. 4443 **/ 4444 static inline void 4445 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4446 uint32_t did) 4447 { 4448 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4449 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4450 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4451 ndlp->nlp_DID = did; 4452 ndlp->vport = vport; 4453 ndlp->phba = vport->phba; 4454 ndlp->nlp_sid = NLP_NO_SID; 4455 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4456 kref_init(&ndlp->kref); 4457 NLP_INT_NODE_ACT(ndlp); 4458 atomic_set(&ndlp->cmd_pending, 0); 4459 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4460 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4461 } 4462 4463 struct lpfc_nodelist * 4464 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4465 int state) 4466 { 4467 struct lpfc_hba *phba = vport->phba; 4468 uint32_t did, flag; 4469 unsigned long flags; 4470 unsigned long *active_rrqs_xri_bitmap = NULL; 4471 int rpi = LPFC_RPI_ALLOC_ERROR; 4472 uint32_t defer_did = 0; 4473 4474 if (!ndlp) 4475 return NULL; 4476 4477 if (phba->sli_rev == LPFC_SLI_REV4) { 4478 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4479 if (rpi == LPFC_RPI_ALLOC_ERROR) 4480 return NULL; 4481 } 4482 4483 spin_lock_irqsave(&phba->ndlp_lock, flags); 4484 /* The ndlp should not be in memory free mode */ 4485 if (NLP_CHK_FREE_REQ(ndlp)) { 4486 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4487 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4488 "0277 lpfc_enable_node: ndlp:x%p " 4489 "usgmap:x%x refcnt:%d\n", 4490 (void *)ndlp, ndlp->nlp_usg_map, 4491 kref_read(&ndlp->kref)); 4492 goto free_rpi; 4493 } 4494 /* The ndlp should not already be in active mode */ 4495 if (NLP_CHK_NODE_ACT(ndlp)) { 4496 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4497 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4498 "0278 lpfc_enable_node: ndlp:x%p " 4499 "usgmap:x%x refcnt:%d\n", 4500 (void *)ndlp, ndlp->nlp_usg_map, 4501 kref_read(&ndlp->kref)); 4502 goto free_rpi; 4503 } 4504 4505 /* First preserve the orginal DID, xri_bitmap and some flags */ 4506 did = ndlp->nlp_DID; 4507 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4508 if (flag & NLP_UNREG_INP) 4509 defer_did = ndlp->nlp_defer_did; 4510 if (phba->sli_rev == LPFC_SLI_REV4) 4511 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4512 4513 /* Zero ndlp except of ndlp linked list pointer */ 4514 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4515 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4516 4517 /* Next reinitialize and restore saved objects */ 4518 lpfc_initialize_node(vport, ndlp, did); 4519 ndlp->nlp_flag |= flag; 4520 if (flag & NLP_UNREG_INP) 4521 ndlp->nlp_defer_did = defer_did; 4522 if (phba->sli_rev == LPFC_SLI_REV4) 4523 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4524 4525 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4526 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4527 ndlp->nlp_rpi = rpi; 4528 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4529 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4530 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4531 ndlp->nlp_flag, 4532 kref_read(&ndlp->kref), 4533 ndlp->nlp_usg_map, ndlp); 4534 } 4535 4536 4537 if (state != NLP_STE_UNUSED_NODE) 4538 lpfc_nlp_set_state(vport, ndlp, state); 4539 4540 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4541 "node enable: did:x%x", 4542 ndlp->nlp_DID, 0, 0); 4543 return ndlp; 4544 4545 free_rpi: 4546 if (phba->sli_rev == LPFC_SLI_REV4) 4547 lpfc_sli4_free_rpi(vport->phba, rpi); 4548 return NULL; 4549 } 4550 4551 void 4552 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4553 { 4554 /* 4555 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4556 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4557 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4558 * until ALL other outstanding threads have completed. We check 4559 * that the ndlp not already in the UNUSED state before we proceed. 4560 */ 4561 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4562 return; 4563 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4564 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4565 lpfc_cleanup_vports_rrqs(vport, ndlp); 4566 lpfc_unreg_rpi(vport, ndlp); 4567 } 4568 4569 lpfc_nlp_put(ndlp); 4570 return; 4571 } 4572 4573 /* 4574 * Start / ReStart rescue timer for Discovery / RSCN handling 4575 */ 4576 void 4577 lpfc_set_disctmo(struct lpfc_vport *vport) 4578 { 4579 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4580 struct lpfc_hba *phba = vport->phba; 4581 uint32_t tmo; 4582 4583 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4584 /* For FAN, timeout should be greater than edtov */ 4585 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4586 } else { 4587 /* Normal discovery timeout should be > than ELS/CT timeout 4588 * FC spec states we need 3 * ratov for CT requests 4589 */ 4590 tmo = ((phba->fc_ratov * 3) + 3); 4591 } 4592 4593 4594 if (!timer_pending(&vport->fc_disctmo)) { 4595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4596 "set disc timer: tmo:x%x state:x%x flg:x%x", 4597 tmo, vport->port_state, vport->fc_flag); 4598 } 4599 4600 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4601 spin_lock_irq(shost->host_lock); 4602 vport->fc_flag |= FC_DISC_TMO; 4603 spin_unlock_irq(shost->host_lock); 4604 4605 /* Start Discovery Timer state <hba_state> */ 4606 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4607 "0247 Start Discovery Timer state x%x " 4608 "Data: x%x x%lx x%x x%x\n", 4609 vport->port_state, tmo, 4610 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4611 vport->fc_adisc_cnt); 4612 4613 return; 4614 } 4615 4616 /* 4617 * Cancel rescue timer for Discovery / RSCN handling 4618 */ 4619 int 4620 lpfc_can_disctmo(struct lpfc_vport *vport) 4621 { 4622 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4623 unsigned long iflags; 4624 4625 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4626 "can disc timer: state:x%x rtry:x%x flg:x%x", 4627 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4628 4629 /* Turn off discovery timer if its running */ 4630 if (vport->fc_flag & FC_DISC_TMO) { 4631 spin_lock_irqsave(shost->host_lock, iflags); 4632 vport->fc_flag &= ~FC_DISC_TMO; 4633 spin_unlock_irqrestore(shost->host_lock, iflags); 4634 del_timer_sync(&vport->fc_disctmo); 4635 spin_lock_irqsave(&vport->work_port_lock, iflags); 4636 vport->work_port_events &= ~WORKER_DISC_TMO; 4637 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4638 } 4639 4640 /* Cancel Discovery Timer state <hba_state> */ 4641 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4642 "0248 Cancel Discovery Timer state x%x " 4643 "Data: x%x x%x x%x\n", 4644 vport->port_state, vport->fc_flag, 4645 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4646 return 0; 4647 } 4648 4649 /* 4650 * Check specified ring for outstanding IOCB on the SLI queue 4651 * Return true if iocb matches the specified nport 4652 */ 4653 int 4654 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4655 struct lpfc_sli_ring *pring, 4656 struct lpfc_iocbq *iocb, 4657 struct lpfc_nodelist *ndlp) 4658 { 4659 IOCB_t *icmd = &iocb->iocb; 4660 struct lpfc_vport *vport = ndlp->vport; 4661 4662 if (iocb->vport != vport) 4663 return 0; 4664 4665 if (pring->ringno == LPFC_ELS_RING) { 4666 switch (icmd->ulpCommand) { 4667 case CMD_GEN_REQUEST64_CR: 4668 if (iocb->context_un.ndlp == ndlp) 4669 return 1; 4670 case CMD_ELS_REQUEST64_CR: 4671 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4672 return 1; 4673 case CMD_XMIT_ELS_RSP64_CX: 4674 if (iocb->context1 == (uint8_t *) ndlp) 4675 return 1; 4676 } 4677 } else if (pring->ringno == LPFC_FCP_RING) { 4678 /* Skip match check if waiting to relogin to FCP target */ 4679 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4680 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4681 return 0; 4682 } 4683 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4684 return 1; 4685 } 4686 } 4687 return 0; 4688 } 4689 4690 static void 4691 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4692 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4693 struct list_head *dequeue_list) 4694 { 4695 struct lpfc_iocbq *iocb, *next_iocb; 4696 4697 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4698 /* Check to see if iocb matches the nport */ 4699 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4700 /* match, dequeue */ 4701 list_move_tail(&iocb->list, dequeue_list); 4702 } 4703 } 4704 4705 static void 4706 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4707 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4708 { 4709 struct lpfc_sli *psli = &phba->sli; 4710 uint32_t i; 4711 4712 spin_lock_irq(&phba->hbalock); 4713 for (i = 0; i < psli->num_rings; i++) 4714 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4715 dequeue_list); 4716 spin_unlock_irq(&phba->hbalock); 4717 } 4718 4719 static void 4720 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4721 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4722 { 4723 struct lpfc_sli_ring *pring; 4724 struct lpfc_queue *qp = NULL; 4725 4726 spin_lock_irq(&phba->hbalock); 4727 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4728 pring = qp->pring; 4729 if (!pring) 4730 continue; 4731 spin_lock(&pring->ring_lock); 4732 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4733 spin_unlock(&pring->ring_lock); 4734 } 4735 spin_unlock_irq(&phba->hbalock); 4736 } 4737 4738 /* 4739 * Free resources / clean up outstanding I/Os 4740 * associated with nlp_rpi in the LPFC_NODELIST entry. 4741 */ 4742 static int 4743 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4744 { 4745 LIST_HEAD(completions); 4746 4747 lpfc_fabric_abort_nport(ndlp); 4748 4749 /* 4750 * Everything that matches on txcmplq will be returned 4751 * by firmware with a no rpi error. 4752 */ 4753 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4754 if (phba->sli_rev != LPFC_SLI_REV4) 4755 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4756 else 4757 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4758 } 4759 4760 /* Cancel all the IOCBs from the completions list */ 4761 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4762 IOERR_SLI_ABORTED); 4763 4764 return 0; 4765 } 4766 4767 /** 4768 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4769 * @phba: Pointer to HBA context object. 4770 * @pmb: Pointer to mailbox object. 4771 * 4772 * This function will issue an ELS LOGO command after completing 4773 * the UNREG_RPI. 4774 **/ 4775 static void 4776 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4777 { 4778 struct lpfc_vport *vport = pmb->vport; 4779 struct lpfc_nodelist *ndlp; 4780 4781 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4782 if (!ndlp) 4783 return; 4784 lpfc_issue_els_logo(vport, ndlp, 0); 4785 mempool_free(pmb, phba->mbox_mem_pool); 4786 4787 /* Check to see if there are any deferred events to process */ 4788 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4789 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4790 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4791 "1434 UNREG cmpl deferred logo x%x " 4792 "on NPort x%x Data: x%x %p\n", 4793 ndlp->nlp_rpi, ndlp->nlp_DID, 4794 ndlp->nlp_defer_did, ndlp); 4795 4796 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4797 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4798 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4799 } else { 4800 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4801 } 4802 } 4803 4804 /* 4805 * Free rpi associated with LPFC_NODELIST entry. 4806 * This routine is called from lpfc_freenode(), when we are removing 4807 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4808 * LOGO that completes successfully, and we are waiting to PLOGI back 4809 * to the remote NPort. In addition, it is called after we receive 4810 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4811 * we are waiting to PLOGI back to the remote NPort. 4812 */ 4813 int 4814 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4815 { 4816 struct lpfc_hba *phba = vport->phba; 4817 LPFC_MBOXQ_t *mbox; 4818 int rc, acc_plogi = 1; 4819 uint16_t rpi; 4820 4821 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4822 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4823 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4824 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4825 "3366 RPI x%x needs to be " 4826 "unregistered nlp_flag x%x " 4827 "did x%x\n", 4828 ndlp->nlp_rpi, ndlp->nlp_flag, 4829 ndlp->nlp_DID); 4830 4831 /* If there is already an UNREG in progress for this ndlp, 4832 * no need to queue up another one. 4833 */ 4834 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4835 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4836 "1436 unreg_rpi SKIP UNREG x%x on " 4837 "NPort x%x deferred x%x flg x%x " 4838 "Data: %p\n", 4839 ndlp->nlp_rpi, ndlp->nlp_DID, 4840 ndlp->nlp_defer_did, 4841 ndlp->nlp_flag, ndlp); 4842 goto out; 4843 } 4844 4845 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4846 if (mbox) { 4847 /* SLI4 ports require the physical rpi value. */ 4848 rpi = ndlp->nlp_rpi; 4849 if (phba->sli_rev == LPFC_SLI_REV4) 4850 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4851 4852 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4853 mbox->vport = vport; 4854 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4855 mbox->ctx_ndlp = ndlp; 4856 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4857 } else { 4858 if (phba->sli_rev == LPFC_SLI_REV4 && 4859 (!(vport->load_flag & FC_UNLOADING)) && 4860 (bf_get(lpfc_sli_intf_if_type, 4861 &phba->sli4_hba.sli_intf) >= 4862 LPFC_SLI_INTF_IF_TYPE_2) && 4863 (kref_read(&ndlp->kref) > 0)) { 4864 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4865 mbox->mbox_cmpl = 4866 lpfc_sli4_unreg_rpi_cmpl_clr; 4867 /* 4868 * accept PLOGIs after unreg_rpi_cmpl 4869 */ 4870 acc_plogi = 0; 4871 } else { 4872 mbox->ctx_ndlp = ndlp; 4873 mbox->mbox_cmpl = 4874 lpfc_sli_def_mbox_cmpl; 4875 } 4876 } 4877 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 4878 Fabric_DID_MASK) && 4879 (!(vport->fc_flag & FC_OFFLINE_MODE))) 4880 ndlp->nlp_flag |= NLP_UNREG_INP; 4881 4882 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4883 "1433 unreg_rpi UNREG x%x on " 4884 "NPort x%x deferred flg x%x Data:%p\n", 4885 ndlp->nlp_rpi, ndlp->nlp_DID, 4886 ndlp->nlp_flag, ndlp); 4887 4888 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4889 if (rc == MBX_NOT_FINISHED) { 4890 mempool_free(mbox, phba->mbox_mem_pool); 4891 acc_plogi = 1; 4892 } 4893 } 4894 lpfc_no_rpi(phba, ndlp); 4895 out: 4896 if (phba->sli_rev != LPFC_SLI_REV4) 4897 ndlp->nlp_rpi = 0; 4898 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4899 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4900 if (acc_plogi) 4901 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4902 return 1; 4903 } 4904 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4905 return 0; 4906 } 4907 4908 /** 4909 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4910 * @phba: pointer to lpfc hba data structure. 4911 * 4912 * This routine is invoked to unregister all the currently registered RPIs 4913 * to the HBA. 4914 **/ 4915 void 4916 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4917 { 4918 struct lpfc_vport **vports; 4919 struct lpfc_nodelist *ndlp; 4920 struct Scsi_Host *shost; 4921 int i; 4922 4923 vports = lpfc_create_vport_work_array(phba); 4924 if (!vports) { 4925 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4926 "2884 Vport array allocation failed \n"); 4927 return; 4928 } 4929 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4930 shost = lpfc_shost_from_vport(vports[i]); 4931 spin_lock_irq(shost->host_lock); 4932 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4933 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4934 /* The mempool_alloc might sleep */ 4935 spin_unlock_irq(shost->host_lock); 4936 lpfc_unreg_rpi(vports[i], ndlp); 4937 spin_lock_irq(shost->host_lock); 4938 } 4939 } 4940 spin_unlock_irq(shost->host_lock); 4941 } 4942 lpfc_destroy_vport_work_array(phba, vports); 4943 } 4944 4945 void 4946 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4947 { 4948 struct lpfc_hba *phba = vport->phba; 4949 LPFC_MBOXQ_t *mbox; 4950 int rc; 4951 4952 if (phba->sli_rev == LPFC_SLI_REV4) { 4953 lpfc_sli4_unreg_all_rpis(vport); 4954 return; 4955 } 4956 4957 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4958 if (mbox) { 4959 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4960 mbox); 4961 mbox->vport = vport; 4962 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4963 mbox->ctx_ndlp = NULL; 4964 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4965 if (rc != MBX_TIMEOUT) 4966 mempool_free(mbox, phba->mbox_mem_pool); 4967 4968 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4969 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4970 "1836 Could not issue " 4971 "unreg_login(all_rpis) status %d\n", rc); 4972 } 4973 } 4974 4975 void 4976 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4977 { 4978 struct lpfc_hba *phba = vport->phba; 4979 LPFC_MBOXQ_t *mbox; 4980 int rc; 4981 4982 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4983 if (mbox) { 4984 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4985 mbox); 4986 mbox->vport = vport; 4987 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4988 mbox->ctx_ndlp = NULL; 4989 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4990 if (rc != MBX_TIMEOUT) 4991 mempool_free(mbox, phba->mbox_mem_pool); 4992 4993 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4994 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4995 "1815 Could not issue " 4996 "unreg_did (default rpis) status %d\n", 4997 rc); 4998 } 4999 } 5000 5001 /* 5002 * Free resources associated with LPFC_NODELIST entry 5003 * so it can be freed. 5004 */ 5005 static int 5006 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5007 { 5008 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5009 struct lpfc_hba *phba = vport->phba; 5010 LPFC_MBOXQ_t *mb, *nextmb; 5011 struct lpfc_dmabuf *mp; 5012 5013 /* Cleanup node for NPort <nlp_DID> */ 5014 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5015 "0900 Cleanup node for NPort x%x " 5016 "Data: x%x x%x x%x\n", 5017 ndlp->nlp_DID, ndlp->nlp_flag, 5018 ndlp->nlp_state, ndlp->nlp_rpi); 5019 if (NLP_CHK_FREE_REQ(ndlp)) { 5020 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5021 "0280 lpfc_cleanup_node: ndlp:x%p " 5022 "usgmap:x%x refcnt:%d\n", 5023 (void *)ndlp, ndlp->nlp_usg_map, 5024 kref_read(&ndlp->kref)); 5025 lpfc_dequeue_node(vport, ndlp); 5026 } else { 5027 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5028 "0281 lpfc_cleanup_node: ndlp:x%p " 5029 "usgmap:x%x refcnt:%d\n", 5030 (void *)ndlp, ndlp->nlp_usg_map, 5031 kref_read(&ndlp->kref)); 5032 lpfc_disable_node(vport, ndlp); 5033 } 5034 5035 5036 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5037 5038 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5039 if ((mb = phba->sli.mbox_active)) { 5040 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5041 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5042 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5043 mb->ctx_ndlp = NULL; 5044 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5045 } 5046 } 5047 5048 spin_lock_irq(&phba->hbalock); 5049 /* Cleanup REG_LOGIN completions which are not yet processed */ 5050 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5051 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5052 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5053 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5054 continue; 5055 5056 mb->ctx_ndlp = NULL; 5057 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5058 } 5059 5060 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5061 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5062 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5063 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5064 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5065 if (mp) { 5066 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5067 kfree(mp); 5068 } 5069 list_del(&mb->list); 5070 mempool_free(mb, phba->mbox_mem_pool); 5071 /* We shall not invoke the lpfc_nlp_put to decrement 5072 * the ndlp reference count as we are in the process 5073 * of lpfc_nlp_release. 5074 */ 5075 } 5076 } 5077 spin_unlock_irq(&phba->hbalock); 5078 5079 lpfc_els_abort(phba, ndlp); 5080 5081 spin_lock_irq(shost->host_lock); 5082 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5083 spin_unlock_irq(shost->host_lock); 5084 5085 ndlp->nlp_last_elscmd = 0; 5086 del_timer_sync(&ndlp->nlp_delayfunc); 5087 5088 list_del_init(&ndlp->els_retry_evt.evt_listp); 5089 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5090 lpfc_cleanup_vports_rrqs(vport, ndlp); 5091 lpfc_unreg_rpi(vport, ndlp); 5092 5093 return 0; 5094 } 5095 5096 /* 5097 * Check to see if we can free the nlp back to the freelist. 5098 * If we are in the middle of using the nlp in the discovery state 5099 * machine, defer the free till we reach the end of the state machine. 5100 */ 5101 static void 5102 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5103 { 5104 struct lpfc_hba *phba = vport->phba; 5105 struct lpfc_rport_data *rdata; 5106 struct fc_rport *rport; 5107 LPFC_MBOXQ_t *mbox; 5108 int rc; 5109 5110 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5111 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5112 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5113 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5114 phba->sli_rev != LPFC_SLI_REV4) { 5115 /* For this case we need to cleanup the default rpi 5116 * allocated by the firmware. 5117 */ 5118 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5119 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5120 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5121 kref_read(&ndlp->kref), 5122 ndlp->nlp_usg_map, ndlp); 5123 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5124 != NULL) { 5125 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5126 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5127 if (rc) { 5128 mempool_free(mbox, phba->mbox_mem_pool); 5129 } 5130 else { 5131 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5132 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5133 mbox->vport = vport; 5134 mbox->ctx_ndlp = ndlp; 5135 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5136 if (rc == MBX_NOT_FINISHED) { 5137 mempool_free(mbox, phba->mbox_mem_pool); 5138 } 5139 } 5140 } 5141 } 5142 lpfc_cleanup_node(vport, ndlp); 5143 5144 /* 5145 * ndlp->rport must be set to NULL before it reaches here 5146 * i.e. break rport/node link before doing lpfc_nlp_put for 5147 * registered rport and then drop the reference of rport. 5148 */ 5149 if (ndlp->rport) { 5150 /* 5151 * extra lpfc_nlp_put dropped the reference of ndlp 5152 * for registered rport so need to cleanup rport 5153 */ 5154 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5155 "0940 removed node x%p DID x%x " 5156 " rport not null %p\n", 5157 ndlp, ndlp->nlp_DID, ndlp->rport); 5158 rport = ndlp->rport; 5159 rdata = rport->dd_data; 5160 rdata->pnode = NULL; 5161 ndlp->rport = NULL; 5162 put_device(&rport->dev); 5163 } 5164 } 5165 5166 static int 5167 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5168 uint32_t did) 5169 { 5170 D_ID mydid, ndlpdid, matchdid; 5171 5172 if (did == Bcast_DID) 5173 return 0; 5174 5175 /* First check for Direct match */ 5176 if (ndlp->nlp_DID == did) 5177 return 1; 5178 5179 /* Next check for area/domain identically equals 0 match */ 5180 mydid.un.word = vport->fc_myDID; 5181 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5182 return 0; 5183 } 5184 5185 matchdid.un.word = did; 5186 ndlpdid.un.word = ndlp->nlp_DID; 5187 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5188 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5189 (mydid.un.b.area == matchdid.un.b.area)) { 5190 /* This code is supposed to match the ID 5191 * for a private loop device that is 5192 * connect to fl_port. But we need to 5193 * check that the port did not just go 5194 * from pt2pt to fabric or we could end 5195 * up matching ndlp->nlp_DID 000001 to 5196 * fabric DID 0x20101 5197 */ 5198 if ((ndlpdid.un.b.domain == 0) && 5199 (ndlpdid.un.b.area == 0)) { 5200 if (ndlpdid.un.b.id && 5201 vport->phba->fc_topology == 5202 LPFC_TOPOLOGY_LOOP) 5203 return 1; 5204 } 5205 return 0; 5206 } 5207 5208 matchdid.un.word = ndlp->nlp_DID; 5209 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5210 (mydid.un.b.area == ndlpdid.un.b.area)) { 5211 if ((matchdid.un.b.domain == 0) && 5212 (matchdid.un.b.area == 0)) { 5213 if (matchdid.un.b.id) 5214 return 1; 5215 } 5216 } 5217 } 5218 return 0; 5219 } 5220 5221 /* Search for a nodelist entry */ 5222 static struct lpfc_nodelist * 5223 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5224 { 5225 struct lpfc_nodelist *ndlp; 5226 uint32_t data1; 5227 5228 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5229 if (lpfc_matchdid(vport, ndlp, did)) { 5230 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5231 ((uint32_t) ndlp->nlp_xri << 16) | 5232 ((uint32_t) ndlp->nlp_type << 8) | 5233 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5234 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5235 "0929 FIND node DID " 5236 "Data: x%p x%x x%x x%x %p\n", 5237 ndlp, ndlp->nlp_DID, 5238 ndlp->nlp_flag, data1, 5239 ndlp->active_rrqs_xri_bitmap); 5240 return ndlp; 5241 } 5242 } 5243 5244 /* FIND node did <did> NOT FOUND */ 5245 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5246 "0932 FIND node did x%x NOT FOUND.\n", did); 5247 return NULL; 5248 } 5249 5250 struct lpfc_nodelist * 5251 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5252 { 5253 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5254 struct lpfc_nodelist *ndlp; 5255 unsigned long iflags; 5256 5257 spin_lock_irqsave(shost->host_lock, iflags); 5258 ndlp = __lpfc_findnode_did(vport, did); 5259 spin_unlock_irqrestore(shost->host_lock, iflags); 5260 return ndlp; 5261 } 5262 5263 struct lpfc_nodelist * 5264 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5265 { 5266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5267 struct lpfc_nodelist *ndlp; 5268 5269 ndlp = lpfc_findnode_did(vport, did); 5270 if (!ndlp) { 5271 if (vport->phba->nvmet_support) 5272 return NULL; 5273 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5274 lpfc_rscn_payload_check(vport, did) == 0) 5275 return NULL; 5276 ndlp = lpfc_nlp_init(vport, did); 5277 if (!ndlp) 5278 return NULL; 5279 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5280 spin_lock_irq(shost->host_lock); 5281 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5282 spin_unlock_irq(shost->host_lock); 5283 return ndlp; 5284 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5285 if (vport->phba->nvmet_support) 5286 return NULL; 5287 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5288 if (!ndlp) 5289 return NULL; 5290 spin_lock_irq(shost->host_lock); 5291 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5292 spin_unlock_irq(shost->host_lock); 5293 return ndlp; 5294 } 5295 5296 /* The NVME Target does not want to actively manage an rport. 5297 * The goal is to allow the target to reset its state and clear 5298 * pending IO in preparation for the initiator to recover. 5299 */ 5300 if ((vport->fc_flag & FC_RSCN_MODE) && 5301 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5302 if (lpfc_rscn_payload_check(vport, did)) { 5303 5304 /* Since this node is marked for discovery, 5305 * delay timeout is not needed. 5306 */ 5307 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5308 5309 /* NVME Target mode waits until rport is known to be 5310 * impacted by the RSCN before it transitions. No 5311 * active management - just go to NPR provided the 5312 * node had a valid login. 5313 */ 5314 if (vport->phba->nvmet_support) 5315 return ndlp; 5316 5317 /* If we've already received a PLOGI from this NPort 5318 * we don't need to try to discover it again. 5319 */ 5320 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5321 return NULL; 5322 5323 spin_lock_irq(shost->host_lock); 5324 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5325 spin_unlock_irq(shost->host_lock); 5326 } else 5327 ndlp = NULL; 5328 } else { 5329 /* If the initiator received a PLOGI from this NPort or if the 5330 * initiator is already in the process of discovery on it, 5331 * there's no need to try to discover it again. 5332 */ 5333 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5334 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5335 (!vport->phba->nvmet_support && 5336 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5337 return NULL; 5338 5339 if (vport->phba->nvmet_support) 5340 return ndlp; 5341 5342 /* Moving to NPR state clears unsolicited flags and 5343 * allows for rediscovery 5344 */ 5345 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5346 5347 spin_lock_irq(shost->host_lock); 5348 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5349 spin_unlock_irq(shost->host_lock); 5350 } 5351 return ndlp; 5352 } 5353 5354 /* Build a list of nodes to discover based on the loopmap */ 5355 void 5356 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5357 { 5358 struct lpfc_hba *phba = vport->phba; 5359 int j; 5360 uint32_t alpa, index; 5361 5362 if (!lpfc_is_link_up(phba)) 5363 return; 5364 5365 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5366 return; 5367 5368 /* Check for loop map present or not */ 5369 if (phba->alpa_map[0]) { 5370 for (j = 1; j <= phba->alpa_map[0]; j++) { 5371 alpa = phba->alpa_map[j]; 5372 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5373 continue; 5374 lpfc_setup_disc_node(vport, alpa); 5375 } 5376 } else { 5377 /* No alpamap, so try all alpa's */ 5378 for (j = 0; j < FC_MAXLOOP; j++) { 5379 /* If cfg_scan_down is set, start from highest 5380 * ALPA (0xef) to lowest (0x1). 5381 */ 5382 if (vport->cfg_scan_down) 5383 index = j; 5384 else 5385 index = FC_MAXLOOP - j - 1; 5386 alpa = lpfcAlpaArray[index]; 5387 if ((vport->fc_myDID & 0xff) == alpa) 5388 continue; 5389 lpfc_setup_disc_node(vport, alpa); 5390 } 5391 } 5392 return; 5393 } 5394 5395 /* SLI3 only */ 5396 void 5397 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5398 { 5399 LPFC_MBOXQ_t *mbox; 5400 struct lpfc_sli *psli = &phba->sli; 5401 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5402 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5403 int rc; 5404 5405 /* 5406 * if it's not a physical port or if we already send 5407 * clear_la then don't send it. 5408 */ 5409 if ((phba->link_state >= LPFC_CLEAR_LA) || 5410 (vport->port_type != LPFC_PHYSICAL_PORT) || 5411 (phba->sli_rev == LPFC_SLI_REV4)) 5412 return; 5413 5414 /* Link up discovery */ 5415 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5416 phba->link_state = LPFC_CLEAR_LA; 5417 lpfc_clear_la(phba, mbox); 5418 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5419 mbox->vport = vport; 5420 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5421 if (rc == MBX_NOT_FINISHED) { 5422 mempool_free(mbox, phba->mbox_mem_pool); 5423 lpfc_disc_flush_list(vport); 5424 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5425 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5426 phba->link_state = LPFC_HBA_ERROR; 5427 } 5428 } 5429 } 5430 5431 /* Reg_vpi to tell firmware to resume normal operations */ 5432 void 5433 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5434 { 5435 LPFC_MBOXQ_t *regvpimbox; 5436 5437 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5438 if (regvpimbox) { 5439 lpfc_reg_vpi(vport, regvpimbox); 5440 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5441 regvpimbox->vport = vport; 5442 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5443 == MBX_NOT_FINISHED) { 5444 mempool_free(regvpimbox, phba->mbox_mem_pool); 5445 } 5446 } 5447 } 5448 5449 /* Start Link up / RSCN discovery on NPR nodes */ 5450 void 5451 lpfc_disc_start(struct lpfc_vport *vport) 5452 { 5453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5454 struct lpfc_hba *phba = vport->phba; 5455 uint32_t num_sent; 5456 uint32_t clear_la_pending; 5457 5458 if (!lpfc_is_link_up(phba)) { 5459 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5460 "3315 Link is not up %x\n", 5461 phba->link_state); 5462 return; 5463 } 5464 5465 if (phba->link_state == LPFC_CLEAR_LA) 5466 clear_la_pending = 1; 5467 else 5468 clear_la_pending = 0; 5469 5470 if (vport->port_state < LPFC_VPORT_READY) 5471 vport->port_state = LPFC_DISC_AUTH; 5472 5473 lpfc_set_disctmo(vport); 5474 5475 vport->fc_prevDID = vport->fc_myDID; 5476 vport->num_disc_nodes = 0; 5477 5478 /* Start Discovery state <hba_state> */ 5479 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5480 "0202 Start Discovery hba state x%x " 5481 "Data: x%x x%x x%x\n", 5482 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5483 vport->fc_adisc_cnt); 5484 5485 /* First do ADISCs - if any */ 5486 num_sent = lpfc_els_disc_adisc(vport); 5487 5488 if (num_sent) 5489 return; 5490 5491 /* Register the VPI for SLI3, NPIV only. */ 5492 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5493 !(vport->fc_flag & FC_PT2PT) && 5494 !(vport->fc_flag & FC_RSCN_MODE) && 5495 (phba->sli_rev < LPFC_SLI_REV4)) { 5496 lpfc_issue_clear_la(phba, vport); 5497 lpfc_issue_reg_vpi(phba, vport); 5498 return; 5499 } 5500 5501 /* 5502 * For SLI2, we need to set port_state to READY and continue 5503 * discovery. 5504 */ 5505 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5506 /* If we get here, there is nothing to ADISC */ 5507 lpfc_issue_clear_la(phba, vport); 5508 5509 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5510 vport->num_disc_nodes = 0; 5511 /* go thru NPR nodes and issue ELS PLOGIs */ 5512 if (vport->fc_npr_cnt) 5513 lpfc_els_disc_plogi(vport); 5514 5515 if (!vport->num_disc_nodes) { 5516 spin_lock_irq(shost->host_lock); 5517 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5518 spin_unlock_irq(shost->host_lock); 5519 lpfc_can_disctmo(vport); 5520 } 5521 } 5522 vport->port_state = LPFC_VPORT_READY; 5523 } else { 5524 /* Next do PLOGIs - if any */ 5525 num_sent = lpfc_els_disc_plogi(vport); 5526 5527 if (num_sent) 5528 return; 5529 5530 if (vport->fc_flag & FC_RSCN_MODE) { 5531 /* Check to see if more RSCNs came in while we 5532 * were processing this one. 5533 */ 5534 if ((vport->fc_rscn_id_cnt == 0) && 5535 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5536 spin_lock_irq(shost->host_lock); 5537 vport->fc_flag &= ~FC_RSCN_MODE; 5538 spin_unlock_irq(shost->host_lock); 5539 lpfc_can_disctmo(vport); 5540 } else 5541 lpfc_els_handle_rscn(vport); 5542 } 5543 } 5544 return; 5545 } 5546 5547 /* 5548 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5549 * ring the match the sppecified nodelist. 5550 */ 5551 static void 5552 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5553 { 5554 LIST_HEAD(completions); 5555 IOCB_t *icmd; 5556 struct lpfc_iocbq *iocb, *next_iocb; 5557 struct lpfc_sli_ring *pring; 5558 5559 pring = lpfc_phba_elsring(phba); 5560 if (unlikely(!pring)) 5561 return; 5562 5563 /* Error matching iocb on txq or txcmplq 5564 * First check the txq. 5565 */ 5566 spin_lock_irq(&phba->hbalock); 5567 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5568 if (iocb->context1 != ndlp) { 5569 continue; 5570 } 5571 icmd = &iocb->iocb; 5572 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5573 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5574 5575 list_move_tail(&iocb->list, &completions); 5576 } 5577 } 5578 5579 /* Next check the txcmplq */ 5580 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5581 if (iocb->context1 != ndlp) { 5582 continue; 5583 } 5584 icmd = &iocb->iocb; 5585 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5586 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5587 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5588 } 5589 } 5590 spin_unlock_irq(&phba->hbalock); 5591 5592 /* Cancel all the IOCBs from the completions list */ 5593 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5594 IOERR_SLI_ABORTED); 5595 } 5596 5597 static void 5598 lpfc_disc_flush_list(struct lpfc_vport *vport) 5599 { 5600 struct lpfc_nodelist *ndlp, *next_ndlp; 5601 struct lpfc_hba *phba = vport->phba; 5602 5603 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5604 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5605 nlp_listp) { 5606 if (!NLP_CHK_NODE_ACT(ndlp)) 5607 continue; 5608 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5609 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5610 lpfc_free_tx(phba, ndlp); 5611 } 5612 } 5613 } 5614 } 5615 5616 void 5617 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5618 { 5619 lpfc_els_flush_rscn(vport); 5620 lpfc_els_flush_cmd(vport); 5621 lpfc_disc_flush_list(vport); 5622 } 5623 5624 /*****************************************************************************/ 5625 /* 5626 * NAME: lpfc_disc_timeout 5627 * 5628 * FUNCTION: Fibre Channel driver discovery timeout routine. 5629 * 5630 * EXECUTION ENVIRONMENT: interrupt only 5631 * 5632 * CALLED FROM: 5633 * Timer function 5634 * 5635 * RETURNS: 5636 * none 5637 */ 5638 /*****************************************************************************/ 5639 void 5640 lpfc_disc_timeout(struct timer_list *t) 5641 { 5642 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5643 struct lpfc_hba *phba = vport->phba; 5644 uint32_t tmo_posted; 5645 unsigned long flags = 0; 5646 5647 if (unlikely(!phba)) 5648 return; 5649 5650 spin_lock_irqsave(&vport->work_port_lock, flags); 5651 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5652 if (!tmo_posted) 5653 vport->work_port_events |= WORKER_DISC_TMO; 5654 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5655 5656 if (!tmo_posted) 5657 lpfc_worker_wake_up(phba); 5658 return; 5659 } 5660 5661 static void 5662 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5663 { 5664 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5665 struct lpfc_hba *phba = vport->phba; 5666 struct lpfc_sli *psli = &phba->sli; 5667 struct lpfc_nodelist *ndlp, *next_ndlp; 5668 LPFC_MBOXQ_t *initlinkmbox; 5669 int rc, clrlaerr = 0; 5670 5671 if (!(vport->fc_flag & FC_DISC_TMO)) 5672 return; 5673 5674 spin_lock_irq(shost->host_lock); 5675 vport->fc_flag &= ~FC_DISC_TMO; 5676 spin_unlock_irq(shost->host_lock); 5677 5678 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5679 "disc timeout: state:x%x rtry:x%x flg:x%x", 5680 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5681 5682 switch (vport->port_state) { 5683 5684 case LPFC_LOCAL_CFG_LINK: 5685 /* 5686 * port_state is identically LPFC_LOCAL_CFG_LINK while 5687 * waiting for FAN timeout 5688 */ 5689 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5690 "0221 FAN timeout\n"); 5691 5692 /* Start discovery by sending FLOGI, clean up old rpis */ 5693 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5694 nlp_listp) { 5695 if (!NLP_CHK_NODE_ACT(ndlp)) 5696 continue; 5697 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5698 continue; 5699 if (ndlp->nlp_type & NLP_FABRIC) { 5700 /* Clean up the ndlp on Fabric connections */ 5701 lpfc_drop_node(vport, ndlp); 5702 5703 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5704 /* Fail outstanding IO now since device 5705 * is marked for PLOGI. 5706 */ 5707 lpfc_unreg_rpi(vport, ndlp); 5708 } 5709 } 5710 if (vport->port_state != LPFC_FLOGI) { 5711 if (phba->sli_rev <= LPFC_SLI_REV3) 5712 lpfc_initial_flogi(vport); 5713 else 5714 lpfc_issue_init_vfi(vport); 5715 return; 5716 } 5717 break; 5718 5719 case LPFC_FDISC: 5720 case LPFC_FLOGI: 5721 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5722 /* Initial FLOGI timeout */ 5723 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5724 "0222 Initial %s timeout\n", 5725 vport->vpi ? "FDISC" : "FLOGI"); 5726 5727 /* Assume no Fabric and go on with discovery. 5728 * Check for outstanding ELS FLOGI to abort. 5729 */ 5730 5731 /* FLOGI failed, so just use loop map to make discovery list */ 5732 lpfc_disc_list_loopmap(vport); 5733 5734 /* Start discovery */ 5735 lpfc_disc_start(vport); 5736 break; 5737 5738 case LPFC_FABRIC_CFG_LINK: 5739 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5740 NameServer login */ 5741 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5742 "0223 Timeout while waiting for " 5743 "NameServer login\n"); 5744 /* Next look for NameServer ndlp */ 5745 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5746 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5747 lpfc_els_abort(phba, ndlp); 5748 5749 /* ReStart discovery */ 5750 goto restart_disc; 5751 5752 case LPFC_NS_QRY: 5753 /* Check for wait for NameServer Rsp timeout */ 5754 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5755 "0224 NameServer Query timeout " 5756 "Data: x%x x%x\n", 5757 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5758 5759 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5760 /* Try it one more time */ 5761 vport->fc_ns_retry++; 5762 vport->gidft_inp = 0; 5763 rc = lpfc_issue_gidft(vport); 5764 if (rc == 0) 5765 break; 5766 } 5767 vport->fc_ns_retry = 0; 5768 5769 restart_disc: 5770 /* 5771 * Discovery is over. 5772 * set port_state to PORT_READY if SLI2. 5773 * cmpl_reg_vpi will set port_state to READY for SLI3. 5774 */ 5775 if (phba->sli_rev < LPFC_SLI_REV4) { 5776 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5777 lpfc_issue_reg_vpi(phba, vport); 5778 else { 5779 lpfc_issue_clear_la(phba, vport); 5780 vport->port_state = LPFC_VPORT_READY; 5781 } 5782 } 5783 5784 /* Setup and issue mailbox INITIALIZE LINK command */ 5785 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5786 if (!initlinkmbox) { 5787 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5788 "0206 Device Discovery " 5789 "completion error\n"); 5790 phba->link_state = LPFC_HBA_ERROR; 5791 break; 5792 } 5793 5794 lpfc_linkdown(phba); 5795 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5796 phba->cfg_link_speed); 5797 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5798 initlinkmbox->vport = vport; 5799 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5800 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5801 lpfc_set_loopback_flag(phba); 5802 if (rc == MBX_NOT_FINISHED) 5803 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5804 5805 break; 5806 5807 case LPFC_DISC_AUTH: 5808 /* Node Authentication timeout */ 5809 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5810 "0227 Node Authentication timeout\n"); 5811 lpfc_disc_flush_list(vport); 5812 5813 /* 5814 * set port_state to PORT_READY if SLI2. 5815 * cmpl_reg_vpi will set port_state to READY for SLI3. 5816 */ 5817 if (phba->sli_rev < LPFC_SLI_REV4) { 5818 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5819 lpfc_issue_reg_vpi(phba, vport); 5820 else { /* NPIV Not enabled */ 5821 lpfc_issue_clear_la(phba, vport); 5822 vport->port_state = LPFC_VPORT_READY; 5823 } 5824 } 5825 break; 5826 5827 case LPFC_VPORT_READY: 5828 if (vport->fc_flag & FC_RSCN_MODE) { 5829 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5830 "0231 RSCN timeout Data: x%x " 5831 "x%x\n", 5832 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5833 5834 /* Cleanup any outstanding ELS commands */ 5835 lpfc_els_flush_cmd(vport); 5836 5837 lpfc_els_flush_rscn(vport); 5838 lpfc_disc_flush_list(vport); 5839 } 5840 break; 5841 5842 default: 5843 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5844 "0273 Unexpected discovery timeout, " 5845 "vport State x%x\n", vport->port_state); 5846 break; 5847 } 5848 5849 switch (phba->link_state) { 5850 case LPFC_CLEAR_LA: 5851 /* CLEAR LA timeout */ 5852 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5853 "0228 CLEAR LA timeout\n"); 5854 clrlaerr = 1; 5855 break; 5856 5857 case LPFC_LINK_UP: 5858 lpfc_issue_clear_la(phba, vport); 5859 /* Drop thru */ 5860 case LPFC_LINK_UNKNOWN: 5861 case LPFC_WARM_START: 5862 case LPFC_INIT_START: 5863 case LPFC_INIT_MBX_CMDS: 5864 case LPFC_LINK_DOWN: 5865 case LPFC_HBA_ERROR: 5866 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5867 "0230 Unexpected timeout, hba link " 5868 "state x%x\n", phba->link_state); 5869 clrlaerr = 1; 5870 break; 5871 5872 case LPFC_HBA_READY: 5873 break; 5874 } 5875 5876 if (clrlaerr) { 5877 lpfc_disc_flush_list(vport); 5878 if (phba->sli_rev != LPFC_SLI_REV4) { 5879 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5880 ~LPFC_STOP_IOCB_EVENT; 5881 psli->sli3_ring[LPFC_FCP_RING].flag &= 5882 ~LPFC_STOP_IOCB_EVENT; 5883 } 5884 vport->port_state = LPFC_VPORT_READY; 5885 } 5886 return; 5887 } 5888 5889 /* 5890 * This routine handles processing a NameServer REG_LOGIN mailbox 5891 * command upon completion. It is setup in the LPFC_MBOXQ 5892 * as the completion routine when the command is 5893 * handed off to the SLI layer. 5894 */ 5895 void 5896 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5897 { 5898 MAILBOX_t *mb = &pmb->u.mb; 5899 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 5900 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 5901 struct lpfc_vport *vport = pmb->vport; 5902 5903 pmb->ctx_buf = NULL; 5904 pmb->ctx_ndlp = NULL; 5905 5906 if (phba->sli_rev < LPFC_SLI_REV4) 5907 ndlp->nlp_rpi = mb->un.varWords[0]; 5908 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5909 ndlp->nlp_type |= NLP_FABRIC; 5910 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5911 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5912 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5913 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5914 kref_read(&ndlp->kref), 5915 ndlp->nlp_usg_map, ndlp); 5916 /* 5917 * Start issuing Fabric-Device Management Interface (FDMI) command to 5918 * 0xfffffa (FDMI well known port). 5919 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5920 * DPRT -> RPRT (vports) 5921 */ 5922 if (vport->port_type == LPFC_PHYSICAL_PORT) 5923 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5924 else 5925 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5926 5927 5928 /* decrement the node reference count held for this callback 5929 * function. 5930 */ 5931 lpfc_nlp_put(ndlp); 5932 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5933 kfree(mp); 5934 mempool_free(pmb, phba->mbox_mem_pool); 5935 5936 return; 5937 } 5938 5939 static int 5940 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5941 { 5942 uint16_t *rpi = param; 5943 5944 /* check for active node */ 5945 if (!NLP_CHK_NODE_ACT(ndlp)) 5946 return 0; 5947 5948 return ndlp->nlp_rpi == *rpi; 5949 } 5950 5951 static int 5952 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5953 { 5954 return memcmp(&ndlp->nlp_portname, param, 5955 sizeof(ndlp->nlp_portname)) == 0; 5956 } 5957 5958 static struct lpfc_nodelist * 5959 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5960 { 5961 struct lpfc_nodelist *ndlp; 5962 5963 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5964 if (filter(ndlp, param)) { 5965 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5966 "3185 FIND node filter %p DID " 5967 "ndlp %p did x%x flg x%x st x%x " 5968 "xri x%x type x%x rpi x%x\n", 5969 filter, ndlp, ndlp->nlp_DID, 5970 ndlp->nlp_flag, ndlp->nlp_state, 5971 ndlp->nlp_xri, ndlp->nlp_type, 5972 ndlp->nlp_rpi); 5973 return ndlp; 5974 } 5975 } 5976 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5977 "3186 FIND node filter %p NOT FOUND.\n", filter); 5978 return NULL; 5979 } 5980 5981 /* 5982 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5983 * returns the node list element pointer else return NULL. 5984 */ 5985 struct lpfc_nodelist * 5986 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5987 { 5988 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5989 } 5990 5991 /* 5992 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5993 * returns the node element list pointer else return NULL. 5994 */ 5995 struct lpfc_nodelist * 5996 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 5997 { 5998 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5999 struct lpfc_nodelist *ndlp; 6000 6001 spin_lock_irq(shost->host_lock); 6002 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6003 spin_unlock_irq(shost->host_lock); 6004 return ndlp; 6005 } 6006 6007 /* 6008 * This routine looks up the ndlp lists for the given RPI. If the rpi 6009 * is found, the routine returns the node element list pointer else 6010 * return NULL. 6011 */ 6012 struct lpfc_nodelist * 6013 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6014 { 6015 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6016 struct lpfc_nodelist *ndlp; 6017 6018 spin_lock_irq(shost->host_lock); 6019 ndlp = __lpfc_findnode_rpi(vport, rpi); 6020 spin_unlock_irq(shost->host_lock); 6021 return ndlp; 6022 } 6023 6024 /** 6025 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6026 * @phba: pointer to lpfc hba data structure. 6027 * @vpi: the physical host virtual N_Port identifier. 6028 * 6029 * This routine finds a vport on a HBA (referred by @phba) through a 6030 * @vpi. The function walks the HBA's vport list and returns the address 6031 * of the vport with the matching @vpi. 6032 * 6033 * Return code 6034 * NULL - No vport with the matching @vpi found 6035 * Otherwise - Address to the vport with the matching @vpi. 6036 **/ 6037 struct lpfc_vport * 6038 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6039 { 6040 struct lpfc_vport *vport; 6041 unsigned long flags; 6042 int i = 0; 6043 6044 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6045 if (vpi > 0) { 6046 /* 6047 * Translate the physical vpi to the logical vpi. The 6048 * vport stores the logical vpi. 6049 */ 6050 for (i = 0; i < phba->max_vpi; i++) { 6051 if (vpi == phba->vpi_ids[i]) 6052 break; 6053 } 6054 6055 if (i >= phba->max_vpi) { 6056 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 6057 "2936 Could not find Vport mapped " 6058 "to vpi %d\n", vpi); 6059 return NULL; 6060 } 6061 } 6062 6063 spin_lock_irqsave(&phba->port_list_lock, flags); 6064 list_for_each_entry(vport, &phba->port_list, listentry) { 6065 if (vport->vpi == i) { 6066 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6067 return vport; 6068 } 6069 } 6070 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6071 return NULL; 6072 } 6073 6074 struct lpfc_nodelist * 6075 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6076 { 6077 struct lpfc_nodelist *ndlp; 6078 int rpi = LPFC_RPI_ALLOC_ERROR; 6079 6080 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6081 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6082 if (rpi == LPFC_RPI_ALLOC_ERROR) 6083 return NULL; 6084 } 6085 6086 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6087 if (!ndlp) { 6088 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6089 lpfc_sli4_free_rpi(vport->phba, rpi); 6090 return NULL; 6091 } 6092 6093 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6094 6095 lpfc_initialize_node(vport, ndlp, did); 6096 INIT_LIST_HEAD(&ndlp->nlp_listp); 6097 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6098 ndlp->nlp_rpi = rpi; 6099 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6100 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 6101 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 6102 ndlp->nlp_flag, 6103 kref_read(&ndlp->kref), 6104 ndlp->nlp_usg_map, ndlp); 6105 6106 ndlp->active_rrqs_xri_bitmap = 6107 mempool_alloc(vport->phba->active_rrq_pool, 6108 GFP_KERNEL); 6109 if (ndlp->active_rrqs_xri_bitmap) 6110 memset(ndlp->active_rrqs_xri_bitmap, 0, 6111 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6112 } 6113 6114 6115 6116 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6117 "node init: did:x%x", 6118 ndlp->nlp_DID, 0, 0); 6119 6120 return ndlp; 6121 } 6122 6123 /* This routine releases all resources associated with a specifc NPort's ndlp 6124 * and mempool_free's the nodelist. 6125 */ 6126 static void 6127 lpfc_nlp_release(struct kref *kref) 6128 { 6129 struct lpfc_hba *phba; 6130 unsigned long flags; 6131 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6132 kref); 6133 6134 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6135 "node release: did:x%x flg:x%x type:x%x", 6136 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6137 6138 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6139 "0279 lpfc_nlp_release: ndlp:x%p did %x " 6140 "usgmap:x%x refcnt:%d rpi:%x\n", 6141 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6142 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6143 6144 /* remove ndlp from action. */ 6145 lpfc_nlp_remove(ndlp->vport, ndlp); 6146 6147 /* clear the ndlp active flag for all release cases */ 6148 phba = ndlp->phba; 6149 spin_lock_irqsave(&phba->ndlp_lock, flags); 6150 NLP_CLR_NODE_ACT(ndlp); 6151 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6152 if (phba->sli_rev == LPFC_SLI_REV4) 6153 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 6154 6155 /* free ndlp memory for final ndlp release */ 6156 if (NLP_CHK_FREE_REQ(ndlp)) { 6157 kfree(ndlp->lat_data); 6158 if (phba->sli_rev == LPFC_SLI_REV4) 6159 mempool_free(ndlp->active_rrqs_xri_bitmap, 6160 ndlp->phba->active_rrq_pool); 6161 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6162 } 6163 } 6164 6165 /* This routine bumps the reference count for a ndlp structure to ensure 6166 * that one discovery thread won't free a ndlp while another discovery thread 6167 * is using it. 6168 */ 6169 struct lpfc_nodelist * 6170 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6171 { 6172 struct lpfc_hba *phba; 6173 unsigned long flags; 6174 6175 if (ndlp) { 6176 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6177 "node get: did:x%x flg:x%x refcnt:x%x", 6178 ndlp->nlp_DID, ndlp->nlp_flag, 6179 kref_read(&ndlp->kref)); 6180 /* The check of ndlp usage to prevent incrementing the 6181 * ndlp reference count that is in the process of being 6182 * released. 6183 */ 6184 phba = ndlp->phba; 6185 spin_lock_irqsave(&phba->ndlp_lock, flags); 6186 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6187 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6188 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6189 "0276 lpfc_nlp_get: ndlp:x%p " 6190 "usgmap:x%x refcnt:%d\n", 6191 (void *)ndlp, ndlp->nlp_usg_map, 6192 kref_read(&ndlp->kref)); 6193 return NULL; 6194 } else 6195 kref_get(&ndlp->kref); 6196 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6197 } 6198 return ndlp; 6199 } 6200 6201 /* This routine decrements the reference count for a ndlp structure. If the 6202 * count goes to 0, this indicates the the associated nodelist should be 6203 * freed. Returning 1 indicates the ndlp resource has been released; on the 6204 * other hand, returning 0 indicates the ndlp resource has not been released 6205 * yet. 6206 */ 6207 int 6208 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6209 { 6210 struct lpfc_hba *phba; 6211 unsigned long flags; 6212 6213 if (!ndlp) 6214 return 1; 6215 6216 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6217 "node put: did:x%x flg:x%x refcnt:x%x", 6218 ndlp->nlp_DID, ndlp->nlp_flag, 6219 kref_read(&ndlp->kref)); 6220 phba = ndlp->phba; 6221 spin_lock_irqsave(&phba->ndlp_lock, flags); 6222 /* Check the ndlp memory free acknowledge flag to avoid the 6223 * possible race condition that kref_put got invoked again 6224 * after previous one has done ndlp memory free. 6225 */ 6226 if (NLP_CHK_FREE_ACK(ndlp)) { 6227 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6228 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6229 "0274 lpfc_nlp_put: ndlp:x%p " 6230 "usgmap:x%x refcnt:%d\n", 6231 (void *)ndlp, ndlp->nlp_usg_map, 6232 kref_read(&ndlp->kref)); 6233 return 1; 6234 } 6235 /* Check the ndlp inactivate log flag to avoid the possible 6236 * race condition that kref_put got invoked again after ndlp 6237 * is already in inactivating state. 6238 */ 6239 if (NLP_CHK_IACT_REQ(ndlp)) { 6240 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6241 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6242 "0275 lpfc_nlp_put: ndlp:x%p " 6243 "usgmap:x%x refcnt:%d\n", 6244 (void *)ndlp, ndlp->nlp_usg_map, 6245 kref_read(&ndlp->kref)); 6246 return 1; 6247 } 6248 /* For last put, mark the ndlp usage flags to make sure no 6249 * other kref_get and kref_put on the same ndlp shall get 6250 * in between the process when the final kref_put has been 6251 * invoked on this ndlp. 6252 */ 6253 if (kref_read(&ndlp->kref) == 1) { 6254 /* Indicate ndlp is put to inactive state. */ 6255 NLP_SET_IACT_REQ(ndlp); 6256 /* Acknowledge ndlp memory free has been seen. */ 6257 if (NLP_CHK_FREE_REQ(ndlp)) 6258 NLP_SET_FREE_ACK(ndlp); 6259 } 6260 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6261 /* Note, the kref_put returns 1 when decrementing a reference 6262 * count that was 1, it invokes the release callback function, 6263 * but it still left the reference count as 1 (not actually 6264 * performs the last decrementation). Otherwise, it actually 6265 * decrements the reference count and returns 0. 6266 */ 6267 return kref_put(&ndlp->kref, lpfc_nlp_release); 6268 } 6269 6270 /* This routine free's the specified nodelist if it is not in use 6271 * by any other discovery thread. This routine returns 1 if the 6272 * ndlp has been freed. A return value of 0 indicates the ndlp is 6273 * not yet been released. 6274 */ 6275 int 6276 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6277 { 6278 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6279 "node not used: did:x%x flg:x%x refcnt:x%x", 6280 ndlp->nlp_DID, ndlp->nlp_flag, 6281 kref_read(&ndlp->kref)); 6282 if (kref_read(&ndlp->kref) == 1) 6283 if (lpfc_nlp_put(ndlp)) 6284 return 1; 6285 return 0; 6286 } 6287 6288 /** 6289 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6290 * @phba: Pointer to hba context object. 6291 * 6292 * This function iterate through all FC nodes associated 6293 * will all vports to check if there is any node with 6294 * fc_rports associated with it. If there is an fc_rport 6295 * associated with the node, then the node is either in 6296 * discovered state or its devloss_timer is pending. 6297 */ 6298 static int 6299 lpfc_fcf_inuse(struct lpfc_hba *phba) 6300 { 6301 struct lpfc_vport **vports; 6302 int i, ret = 0; 6303 struct lpfc_nodelist *ndlp; 6304 struct Scsi_Host *shost; 6305 6306 vports = lpfc_create_vport_work_array(phba); 6307 6308 /* If driver cannot allocate memory, indicate fcf is in use */ 6309 if (!vports) 6310 return 1; 6311 6312 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6313 shost = lpfc_shost_from_vport(vports[i]); 6314 spin_lock_irq(shost->host_lock); 6315 /* 6316 * IF the CVL_RCVD bit is not set then we have sent the 6317 * flogi. 6318 * If dev_loss fires while we are waiting we do not want to 6319 * unreg the fcf. 6320 */ 6321 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6322 spin_unlock_irq(shost->host_lock); 6323 ret = 1; 6324 goto out; 6325 } 6326 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6327 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6328 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6329 ret = 1; 6330 spin_unlock_irq(shost->host_lock); 6331 goto out; 6332 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6333 ret = 1; 6334 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6335 "2624 RPI %x DID %x flag %x " 6336 "still logged in\n", 6337 ndlp->nlp_rpi, ndlp->nlp_DID, 6338 ndlp->nlp_flag); 6339 } 6340 } 6341 spin_unlock_irq(shost->host_lock); 6342 } 6343 out: 6344 lpfc_destroy_vport_work_array(phba, vports); 6345 return ret; 6346 } 6347 6348 /** 6349 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6350 * @phba: Pointer to hba context object. 6351 * @mboxq: Pointer to mailbox object. 6352 * 6353 * This function frees memory associated with the mailbox command. 6354 */ 6355 void 6356 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6357 { 6358 struct lpfc_vport *vport = mboxq->vport; 6359 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6360 6361 if (mboxq->u.mb.mbxStatus) { 6362 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6363 "2555 UNREG_VFI mbxStatus error x%x " 6364 "HBA state x%x\n", 6365 mboxq->u.mb.mbxStatus, vport->port_state); 6366 } 6367 spin_lock_irq(shost->host_lock); 6368 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6369 spin_unlock_irq(shost->host_lock); 6370 mempool_free(mboxq, phba->mbox_mem_pool); 6371 return; 6372 } 6373 6374 /** 6375 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6376 * @phba: Pointer to hba context object. 6377 * @mboxq: Pointer to mailbox object. 6378 * 6379 * This function frees memory associated with the mailbox command. 6380 */ 6381 static void 6382 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6383 { 6384 struct lpfc_vport *vport = mboxq->vport; 6385 6386 if (mboxq->u.mb.mbxStatus) { 6387 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6388 "2550 UNREG_FCFI mbxStatus error x%x " 6389 "HBA state x%x\n", 6390 mboxq->u.mb.mbxStatus, vport->port_state); 6391 } 6392 mempool_free(mboxq, phba->mbox_mem_pool); 6393 return; 6394 } 6395 6396 /** 6397 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6398 * @phba: Pointer to hba context object. 6399 * 6400 * This function prepare the HBA for unregistering the currently registered 6401 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6402 * VFIs. 6403 */ 6404 int 6405 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6406 { 6407 struct lpfc_vport **vports; 6408 struct lpfc_nodelist *ndlp; 6409 struct Scsi_Host *shost; 6410 int i = 0, rc; 6411 6412 /* Unregister RPIs */ 6413 if (lpfc_fcf_inuse(phba)) 6414 lpfc_unreg_hba_rpis(phba); 6415 6416 /* At this point, all discovery is aborted */ 6417 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6418 6419 /* Unregister VPIs */ 6420 vports = lpfc_create_vport_work_array(phba); 6421 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6422 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6423 /* Stop FLOGI/FDISC retries */ 6424 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6425 if (ndlp) 6426 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6427 lpfc_cleanup_pending_mbox(vports[i]); 6428 if (phba->sli_rev == LPFC_SLI_REV4) 6429 lpfc_sli4_unreg_all_rpis(vports[i]); 6430 lpfc_mbx_unreg_vpi(vports[i]); 6431 shost = lpfc_shost_from_vport(vports[i]); 6432 spin_lock_irq(shost->host_lock); 6433 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6434 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6435 spin_unlock_irq(shost->host_lock); 6436 } 6437 lpfc_destroy_vport_work_array(phba, vports); 6438 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6439 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6440 if (ndlp) 6441 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6442 lpfc_cleanup_pending_mbox(phba->pport); 6443 if (phba->sli_rev == LPFC_SLI_REV4) 6444 lpfc_sli4_unreg_all_rpis(phba->pport); 6445 lpfc_mbx_unreg_vpi(phba->pport); 6446 shost = lpfc_shost_from_vport(phba->pport); 6447 spin_lock_irq(shost->host_lock); 6448 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6449 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6450 spin_unlock_irq(shost->host_lock); 6451 } 6452 6453 /* Cleanup any outstanding ELS commands */ 6454 lpfc_els_flush_all_cmd(phba); 6455 6456 /* Unregister the physical port VFI */ 6457 rc = lpfc_issue_unreg_vfi(phba->pport); 6458 return rc; 6459 } 6460 6461 /** 6462 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6463 * @phba: Pointer to hba context object. 6464 * 6465 * This function issues synchronous unregister FCF mailbox command to HBA to 6466 * unregister the currently registered FCF record. The driver does not reset 6467 * the driver FCF usage state flags. 6468 * 6469 * Return 0 if successfully issued, none-zero otherwise. 6470 */ 6471 int 6472 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6473 { 6474 LPFC_MBOXQ_t *mbox; 6475 int rc; 6476 6477 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6478 if (!mbox) { 6479 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6480 "2551 UNREG_FCFI mbox allocation failed" 6481 "HBA state x%x\n", phba->pport->port_state); 6482 return -ENOMEM; 6483 } 6484 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6485 mbox->vport = phba->pport; 6486 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6487 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6488 6489 if (rc == MBX_NOT_FINISHED) { 6490 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6491 "2552 Unregister FCFI command failed rc x%x " 6492 "HBA state x%x\n", 6493 rc, phba->pport->port_state); 6494 return -EINVAL; 6495 } 6496 return 0; 6497 } 6498 6499 /** 6500 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6501 * @phba: Pointer to hba context object. 6502 * 6503 * This function unregisters the currently reigstered FCF. This function 6504 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6505 */ 6506 void 6507 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6508 { 6509 int rc; 6510 6511 /* Preparation for unregistering fcf */ 6512 rc = lpfc_unregister_fcf_prep(phba); 6513 if (rc) { 6514 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6515 "2748 Failed to prepare for unregistering " 6516 "HBA's FCF record: rc=%d\n", rc); 6517 return; 6518 } 6519 6520 /* Now, unregister FCF record and reset HBA FCF state */ 6521 rc = lpfc_sli4_unregister_fcf(phba); 6522 if (rc) 6523 return; 6524 /* Reset HBA FCF states after successful unregister FCF */ 6525 phba->fcf.fcf_flag = 0; 6526 phba->fcf.current_rec.flag = 0; 6527 6528 /* 6529 * If driver is not unloading, check if there is any other 6530 * FCF record that can be used for discovery. 6531 */ 6532 if ((phba->pport->load_flag & FC_UNLOADING) || 6533 (phba->link_state < LPFC_LINK_UP)) 6534 return; 6535 6536 /* This is considered as the initial FCF discovery scan */ 6537 spin_lock_irq(&phba->hbalock); 6538 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6539 spin_unlock_irq(&phba->hbalock); 6540 6541 /* Reset FCF roundrobin bmask for new discovery */ 6542 lpfc_sli4_clear_fcf_rr_bmask(phba); 6543 6544 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6545 6546 if (rc) { 6547 spin_lock_irq(&phba->hbalock); 6548 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6549 spin_unlock_irq(&phba->hbalock); 6550 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6551 "2553 lpfc_unregister_unused_fcf failed " 6552 "to read FCF record HBA state x%x\n", 6553 phba->pport->port_state); 6554 } 6555 } 6556 6557 /** 6558 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6559 * @phba: Pointer to hba context object. 6560 * 6561 * This function just unregisters the currently reigstered FCF. It does not 6562 * try to find another FCF for discovery. 6563 */ 6564 void 6565 lpfc_unregister_fcf(struct lpfc_hba *phba) 6566 { 6567 int rc; 6568 6569 /* Preparation for unregistering fcf */ 6570 rc = lpfc_unregister_fcf_prep(phba); 6571 if (rc) { 6572 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6573 "2749 Failed to prepare for unregistering " 6574 "HBA's FCF record: rc=%d\n", rc); 6575 return; 6576 } 6577 6578 /* Now, unregister FCF record and reset HBA FCF state */ 6579 rc = lpfc_sli4_unregister_fcf(phba); 6580 if (rc) 6581 return; 6582 /* Set proper HBA FCF states after successful unregister FCF */ 6583 spin_lock_irq(&phba->hbalock); 6584 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6585 spin_unlock_irq(&phba->hbalock); 6586 } 6587 6588 /** 6589 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6590 * @phba: Pointer to hba context object. 6591 * 6592 * This function check if there are any connected remote port for the FCF and 6593 * if all the devices are disconnected, this function unregister FCFI. 6594 * This function also tries to use another FCF for discovery. 6595 */ 6596 void 6597 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6598 { 6599 /* 6600 * If HBA is not running in FIP mode, if HBA does not support 6601 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6602 * registered, do nothing. 6603 */ 6604 spin_lock_irq(&phba->hbalock); 6605 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6606 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6607 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6608 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6609 (phba->pport->port_state == LPFC_FLOGI)) { 6610 spin_unlock_irq(&phba->hbalock); 6611 return; 6612 } 6613 spin_unlock_irq(&phba->hbalock); 6614 6615 if (lpfc_fcf_inuse(phba)) 6616 return; 6617 6618 lpfc_unregister_fcf_rescan(phba); 6619 } 6620 6621 /** 6622 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6623 * @phba: Pointer to hba context object. 6624 * @buff: Buffer containing the FCF connection table as in the config 6625 * region. 6626 * This function create driver data structure for the FCF connection 6627 * record table read from config region 23. 6628 */ 6629 static void 6630 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6631 uint8_t *buff) 6632 { 6633 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6634 struct lpfc_fcf_conn_hdr *conn_hdr; 6635 struct lpfc_fcf_conn_rec *conn_rec; 6636 uint32_t record_count; 6637 int i; 6638 6639 /* Free the current connect table */ 6640 list_for_each_entry_safe(conn_entry, next_conn_entry, 6641 &phba->fcf_conn_rec_list, list) { 6642 list_del_init(&conn_entry->list); 6643 kfree(conn_entry); 6644 } 6645 6646 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6647 record_count = conn_hdr->length * sizeof(uint32_t)/ 6648 sizeof(struct lpfc_fcf_conn_rec); 6649 6650 conn_rec = (struct lpfc_fcf_conn_rec *) 6651 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6652 6653 for (i = 0; i < record_count; i++) { 6654 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6655 continue; 6656 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6657 GFP_KERNEL); 6658 if (!conn_entry) { 6659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6660 "2566 Failed to allocate connection" 6661 " table entry\n"); 6662 return; 6663 } 6664 6665 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6666 sizeof(struct lpfc_fcf_conn_rec)); 6667 list_add_tail(&conn_entry->list, 6668 &phba->fcf_conn_rec_list); 6669 } 6670 6671 if (!list_empty(&phba->fcf_conn_rec_list)) { 6672 i = 0; 6673 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6674 list) { 6675 conn_rec = &conn_entry->conn_rec; 6676 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6677 "3345 FCF connection list rec[%02d]: " 6678 "flags:x%04x, vtag:x%04x, " 6679 "fabric_name:x%02x:%02x:%02x:%02x:" 6680 "%02x:%02x:%02x:%02x, " 6681 "switch_name:x%02x:%02x:%02x:%02x:" 6682 "%02x:%02x:%02x:%02x\n", i++, 6683 conn_rec->flags, conn_rec->vlan_tag, 6684 conn_rec->fabric_name[0], 6685 conn_rec->fabric_name[1], 6686 conn_rec->fabric_name[2], 6687 conn_rec->fabric_name[3], 6688 conn_rec->fabric_name[4], 6689 conn_rec->fabric_name[5], 6690 conn_rec->fabric_name[6], 6691 conn_rec->fabric_name[7], 6692 conn_rec->switch_name[0], 6693 conn_rec->switch_name[1], 6694 conn_rec->switch_name[2], 6695 conn_rec->switch_name[3], 6696 conn_rec->switch_name[4], 6697 conn_rec->switch_name[5], 6698 conn_rec->switch_name[6], 6699 conn_rec->switch_name[7]); 6700 } 6701 } 6702 } 6703 6704 /** 6705 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6706 * @phba: Pointer to hba context object. 6707 * @buff: Buffer containing the FCoE parameter data structure. 6708 * 6709 * This function update driver data structure with config 6710 * parameters read from config region 23. 6711 */ 6712 static void 6713 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6714 uint8_t *buff) 6715 { 6716 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6717 struct lpfc_fcoe_params *fcoe_param; 6718 6719 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6720 buff; 6721 fcoe_param = (struct lpfc_fcoe_params *) 6722 (buff + sizeof(struct lpfc_fip_param_hdr)); 6723 6724 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6725 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6726 return; 6727 6728 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6729 phba->valid_vlan = 1; 6730 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6731 0xFFF; 6732 } 6733 6734 phba->fc_map[0] = fcoe_param->fc_map[0]; 6735 phba->fc_map[1] = fcoe_param->fc_map[1]; 6736 phba->fc_map[2] = fcoe_param->fc_map[2]; 6737 return; 6738 } 6739 6740 /** 6741 * lpfc_get_rec_conf23 - Get a record type in config region data. 6742 * @buff: Buffer containing config region 23 data. 6743 * @size: Size of the data buffer. 6744 * @rec_type: Record type to be searched. 6745 * 6746 * This function searches config region data to find the beginning 6747 * of the record specified by record_type. If record found, this 6748 * function return pointer to the record else return NULL. 6749 */ 6750 static uint8_t * 6751 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6752 { 6753 uint32_t offset = 0, rec_length; 6754 6755 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6756 (size < sizeof(uint32_t))) 6757 return NULL; 6758 6759 rec_length = buff[offset + 1]; 6760 6761 /* 6762 * One TLV record has one word header and number of data words 6763 * specified in the rec_length field of the record header. 6764 */ 6765 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6766 <= size) { 6767 if (buff[offset] == rec_type) 6768 return &buff[offset]; 6769 6770 if (buff[offset] == LPFC_REGION23_LAST_REC) 6771 return NULL; 6772 6773 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6774 rec_length = buff[offset + 1]; 6775 } 6776 return NULL; 6777 } 6778 6779 /** 6780 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6781 * @phba: Pointer to lpfc_hba data structure. 6782 * @buff: Buffer containing config region 23 data. 6783 * @size: Size of the data buffer. 6784 * 6785 * This function parses the FCoE config parameters in config region 23 and 6786 * populate driver data structure with the parameters. 6787 */ 6788 void 6789 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6790 uint8_t *buff, 6791 uint32_t size) 6792 { 6793 uint32_t offset = 0; 6794 uint8_t *rec_ptr; 6795 6796 /* 6797 * If data size is less than 2 words signature and version cannot be 6798 * verified. 6799 */ 6800 if (size < 2*sizeof(uint32_t)) 6801 return; 6802 6803 /* Check the region signature first */ 6804 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6806 "2567 Config region 23 has bad signature\n"); 6807 return; 6808 } 6809 6810 offset += 4; 6811 6812 /* Check the data structure version */ 6813 if (buff[offset] != LPFC_REGION23_VERSION) { 6814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6815 "2568 Config region 23 has bad version\n"); 6816 return; 6817 } 6818 offset += 4; 6819 6820 /* Read FCoE param record */ 6821 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6822 size - offset, FCOE_PARAM_TYPE); 6823 if (rec_ptr) 6824 lpfc_read_fcoe_param(phba, rec_ptr); 6825 6826 /* Read FCF connection table */ 6827 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6828 size - offset, FCOE_CONN_TBL_TYPE); 6829 if (rec_ptr) 6830 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6831 6832 } 6833