1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/slab.h> 27 #include <linux/pci.h> 28 #include <linux/kthread.h> 29 #include <linux/interrupt.h> 30 #include <linux/lockdep.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 #include <scsi/fc/fc_fs.h> 37 38 #include <linux/nvme-fc-driver.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_crtn.h" 51 #include "lpfc_vport.h" 52 #include "lpfc_debugfs.h" 53 54 /* AlpaArray for assignment of scsid for scan-down and bind_method */ 55 static uint8_t lpfcAlpaArray[] = { 56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, 57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, 60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, 61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, 62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, 64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, 65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, 66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, 68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 69 }; 70 71 static void lpfc_disc_timeout_handler(struct lpfc_vport *); 72 static void lpfc_disc_flush_list(struct lpfc_vport *vport); 73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 74 static int lpfc_fcf_inuse(struct lpfc_hba *); 75 76 void 77 lpfc_terminate_rport_io(struct fc_rport *rport) 78 { 79 struct lpfc_rport_data *rdata; 80 struct lpfc_nodelist * ndlp; 81 struct lpfc_hba *phba; 82 83 rdata = rport->dd_data; 84 ndlp = rdata->pnode; 85 86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 88 printk(KERN_ERR "Cannot find remote node" 89 " to terminate I/O Data x%x\n", 90 rport->port_id); 91 return; 92 } 93 94 phba = ndlp->phba; 95 96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, 97 "rport terminate: sid:x%x did:x%x flg:x%x", 98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 99 100 if (ndlp->nlp_sid != NLP_NO_SID) { 101 lpfc_sli_abort_iocb(ndlp->vport, 102 &phba->sli.sli3_ring[LPFC_FCP_RING], 103 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 104 } 105 } 106 107 /* 108 * This function will be called when dev_loss_tmo fire. 109 */ 110 void 111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 112 { 113 struct lpfc_rport_data *rdata; 114 struct lpfc_nodelist * ndlp; 115 struct lpfc_vport *vport; 116 struct Scsi_Host *shost; 117 struct lpfc_hba *phba; 118 struct lpfc_work_evt *evtp; 119 int put_node; 120 int put_rport; 121 122 rdata = rport->dd_data; 123 ndlp = rdata->pnode; 124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) 125 return; 126 127 vport = ndlp->vport; 128 phba = vport->phba; 129 130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 131 "rport devlosscb: sid:x%x did:x%x flg:x%x", 132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); 133 134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", 136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 137 138 /* Don't defer this if we are in the process of deleting the vport 139 * or unloading the driver. The unload will cleanup the node 140 * appropriately we just need to cleanup the ndlp rport info here. 141 */ 142 if (vport->load_flag & FC_UNLOADING) { 143 put_node = rdata->pnode != NULL; 144 put_rport = ndlp->rport != NULL; 145 rdata->pnode = NULL; 146 ndlp->rport = NULL; 147 if (put_node) 148 lpfc_nlp_put(ndlp); 149 if (put_rport) 150 put_device(&rport->dev); 151 return; 152 } 153 154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 155 return; 156 157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) 158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 159 "6789 rport name %llx != node port name %llx", 160 rport->port_name, 161 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 162 163 evtp = &ndlp->dev_loss_evt; 164 165 if (!list_empty(&evtp->evt_listp)) { 166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 167 "6790 rport name %llx dev_loss_evt pending", 168 rport->port_name); 169 return; 170 } 171 172 shost = lpfc_shost_from_vport(vport); 173 spin_lock_irq(shost->host_lock); 174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS; 175 spin_unlock_irq(shost->host_lock); 176 177 /* We need to hold the node by incrementing the reference 178 * count until this queued work is done 179 */ 180 evtp->evt_arg1 = lpfc_nlp_get(ndlp); 181 182 spin_lock_irq(&phba->hbalock); 183 if (evtp->evt_arg1) { 184 evtp->evt = LPFC_EVT_DEV_LOSS; 185 list_add_tail(&evtp->evt_listp, &phba->work_list); 186 lpfc_worker_wake_up(phba); 187 } 188 spin_unlock_irq(&phba->hbalock); 189 190 return; 191 } 192 193 /** 194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler 195 * @ndlp: Pointer to remote node object. 196 * 197 * This function is called from the worker thread when devloss timeout timer 198 * expires. For SLI4 host, this routine shall return 1 when at lease one 199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this 200 * routine shall return 0 when there is no remote node is still in use of FCF 201 * when devloss timeout happened to this @ndlp. 202 **/ 203 static int 204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 205 { 206 struct lpfc_rport_data *rdata; 207 struct fc_rport *rport; 208 struct lpfc_vport *vport; 209 struct lpfc_hba *phba; 210 struct Scsi_Host *shost; 211 uint8_t *name; 212 int put_node; 213 int warn_on = 0; 214 int fcf_inuse = 0; 215 216 rport = ndlp->rport; 217 vport = ndlp->vport; 218 shost = lpfc_shost_from_vport(vport); 219 220 spin_lock_irq(shost->host_lock); 221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; 222 spin_unlock_irq(shost->host_lock); 223 224 if (!rport) 225 return fcf_inuse; 226 227 name = (uint8_t *) &ndlp->nlp_portname; 228 phba = vport->phba; 229 230 if (phba->sli_rev == LPFC_SLI_REV4) 231 fcf_inuse = lpfc_fcf_inuse(phba); 232 233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 234 "rport devlosstmo:did:x%x type:x%x id:x%x", 235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); 236 237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", 239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); 240 241 /* 242 * lpfc_nlp_remove if reached with dangling rport drops the 243 * reference. To make sure that does not happen clear rport 244 * pointer in ndlp before lpfc_nlp_put. 245 */ 246 rdata = rport->dd_data; 247 248 /* Don't defer this if we are in the process of deleting the vport 249 * or unloading the driver. The unload will cleanup the node 250 * appropriately we just need to cleanup the ndlp rport info here. 251 */ 252 if (vport->load_flag & FC_UNLOADING) { 253 if (ndlp->nlp_sid != NLP_NO_SID) { 254 /* flush the target */ 255 lpfc_sli_abort_iocb(vport, 256 &phba->sli.sli3_ring[LPFC_FCP_RING], 257 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 258 } 259 put_node = rdata->pnode != NULL; 260 rdata->pnode = NULL; 261 ndlp->rport = NULL; 262 if (put_node) 263 lpfc_nlp_put(ndlp); 264 put_device(&rport->dev); 265 266 return fcf_inuse; 267 } 268 269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { 270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 271 "0284 Devloss timeout Ignored on " 272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x " 273 "NPort x%x\n", 274 *name, *(name+1), *(name+2), *(name+3), 275 *(name+4), *(name+5), *(name+6), *(name+7), 276 ndlp->nlp_DID); 277 return fcf_inuse; 278 } 279 280 put_node = rdata->pnode != NULL; 281 rdata->pnode = NULL; 282 ndlp->rport = NULL; 283 if (put_node) 284 lpfc_nlp_put(ndlp); 285 put_device(&rport->dev); 286 287 if (ndlp->nlp_type & NLP_FABRIC) 288 return fcf_inuse; 289 290 if (ndlp->nlp_sid != NLP_NO_SID) { 291 warn_on = 1; 292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 293 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 294 } 295 296 if (warn_on) { 297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 298 "0203 Devloss timeout on " 299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 300 "NPort x%06x Data: x%x x%x x%x\n", 301 *name, *(name+1), *(name+2), *(name+3), 302 *(name+4), *(name+5), *(name+6), *(name+7), 303 ndlp->nlp_DID, ndlp->nlp_flag, 304 ndlp->nlp_state, ndlp->nlp_rpi); 305 } else { 306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 307 "0204 Devloss timeout on " 308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " 309 "NPort x%06x Data: x%x x%x x%x\n", 310 *name, *(name+1), *(name+2), *(name+3), 311 *(name+4), *(name+5), *(name+6), *(name+7), 312 ndlp->nlp_DID, ndlp->nlp_flag, 313 ndlp->nlp_state, ndlp->nlp_rpi); 314 } 315 316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && 318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && 320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) 321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 322 323 return fcf_inuse; 324 } 325 326 /** 327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler 328 * @phba: Pointer to hba context object. 329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. 330 * @nlp_did: remote node identifer with devloss timeout. 331 * 332 * This function is called from the worker thread after invoking devloss 333 * timeout handler and releasing the reference count for the ndlp with 334 * which the devloss timeout was handled for SLI4 host. For the devloss 335 * timeout of the last remote node which had been in use of FCF, when this 336 * routine is invoked, it shall be guaranteed that none of the remote are 337 * in-use of FCF. When devloss timeout to the last remote using the FCF, 338 * if the FIP engine is neither in FCF table scan process nor roundrobin 339 * failover process, the in-use FCF shall be unregistered. If the FIP 340 * engine is in FCF discovery process, the devloss timeout state shall 341 * be set for either the FCF table scan process or roundrobin failover 342 * process to unregister the in-use FCF. 343 **/ 344 static void 345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, 346 uint32_t nlp_did) 347 { 348 /* If devloss timeout happened to a remote node when FCF had no 349 * longer been in-use, do nothing. 350 */ 351 if (!fcf_inuse) 352 return; 353 354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { 355 spin_lock_irq(&phba->hbalock); 356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 357 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 358 spin_unlock_irq(&phba->hbalock); 359 return; 360 } 361 phba->hba_flag |= HBA_DEVLOSS_TMO; 362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 363 "2847 Last remote node (x%x) using " 364 "FCF devloss tmo\n", nlp_did); 365 } 366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { 367 spin_unlock_irq(&phba->hbalock); 368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 369 "2868 Devloss tmo to FCF rediscovery " 370 "in progress\n"); 371 return; 372 } 373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { 374 spin_unlock_irq(&phba->hbalock); 375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 376 "2869 Devloss tmo to idle FIP engine, " 377 "unreg in-use FCF and rescan.\n"); 378 /* Unregister in-use FCF and rescan */ 379 lpfc_unregister_fcf_rescan(phba); 380 return; 381 } 382 spin_unlock_irq(&phba->hbalock); 383 if (phba->hba_flag & FCF_TS_INPROG) 384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 385 "2870 FCF table scan in progress\n"); 386 if (phba->hba_flag & FCF_RR_INPROG) 387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 388 "2871 FLOGI roundrobin FCF failover " 389 "in progress\n"); 390 } 391 lpfc_unregister_unused_fcf(phba); 392 } 393 394 /** 395 * lpfc_alloc_fast_evt - Allocates data structure for posting event 396 * @phba: Pointer to hba context object. 397 * 398 * This function is called from the functions which need to post 399 * events from interrupt context. This function allocates data 400 * structure required for posting event. It also keeps track of 401 * number of events pending and prevent event storm when there are 402 * too many events. 403 **/ 404 struct lpfc_fast_path_event * 405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) { 406 struct lpfc_fast_path_event *ret; 407 408 /* If there are lot of fast event do not exhaust memory due to this */ 409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) 410 return NULL; 411 412 ret = kzalloc(sizeof(struct lpfc_fast_path_event), 413 GFP_ATOMIC); 414 if (ret) { 415 atomic_inc(&phba->fast_event_count); 416 INIT_LIST_HEAD(&ret->work_evt.evt_listp); 417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; 418 } 419 return ret; 420 } 421 422 /** 423 * lpfc_free_fast_evt - Frees event data structure 424 * @phba: Pointer to hba context object. 425 * @evt: Event object which need to be freed. 426 * 427 * This function frees the data structure required for posting 428 * events. 429 **/ 430 void 431 lpfc_free_fast_evt(struct lpfc_hba *phba, 432 struct lpfc_fast_path_event *evt) { 433 434 atomic_dec(&phba->fast_event_count); 435 kfree(evt); 436 } 437 438 /** 439 * lpfc_send_fastpath_evt - Posts events generated from fast path 440 * @phba: Pointer to hba context object. 441 * @evtp: Event data structure. 442 * 443 * This function is called from worker thread, when the interrupt 444 * context need to post an event. This function posts the event 445 * to fc transport netlink interface. 446 **/ 447 static void 448 lpfc_send_fastpath_evt(struct lpfc_hba *phba, 449 struct lpfc_work_evt *evtp) 450 { 451 unsigned long evt_category, evt_sub_category; 452 struct lpfc_fast_path_event *fast_evt_data; 453 char *evt_data; 454 uint32_t evt_data_size; 455 struct Scsi_Host *shost; 456 457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, 458 work_evt); 459 460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; 461 evt_sub_category = (unsigned long) fast_evt_data->un. 462 fabric_evt.subcategory; 463 shost = lpfc_shost_from_vport(fast_evt_data->vport); 464 if (evt_category == FC_REG_FABRIC_EVENT) { 465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { 466 evt_data = (char *) &fast_evt_data->un.read_check_error; 467 evt_data_size = sizeof(fast_evt_data->un. 468 read_check_error); 469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || 470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { 471 evt_data = (char *) &fast_evt_data->un.fabric_evt; 472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt); 473 } else { 474 lpfc_free_fast_evt(phba, fast_evt_data); 475 return; 476 } 477 } else if (evt_category == FC_REG_SCSI_EVENT) { 478 switch (evt_sub_category) { 479 case LPFC_EVENT_QFULL: 480 case LPFC_EVENT_DEVBSY: 481 evt_data = (char *) &fast_evt_data->un.scsi_evt; 482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt); 483 break; 484 case LPFC_EVENT_CHECK_COND: 485 evt_data = (char *) &fast_evt_data->un.check_cond_evt; 486 evt_data_size = sizeof(fast_evt_data->un. 487 check_cond_evt); 488 break; 489 case LPFC_EVENT_VARQUEDEPTH: 490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt; 491 evt_data_size = sizeof(fast_evt_data->un. 492 queue_depth_evt); 493 break; 494 default: 495 lpfc_free_fast_evt(phba, fast_evt_data); 496 return; 497 } 498 } else { 499 lpfc_free_fast_evt(phba, fast_evt_data); 500 return; 501 } 502 503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 504 fc_host_post_vendor_event(shost, 505 fc_get_event_number(), 506 evt_data_size, 507 evt_data, 508 LPFC_NL_VENDOR_ID); 509 510 lpfc_free_fast_evt(phba, fast_evt_data); 511 return; 512 } 513 514 static void 515 lpfc_work_list_done(struct lpfc_hba *phba) 516 { 517 struct lpfc_work_evt *evtp = NULL; 518 struct lpfc_nodelist *ndlp; 519 int free_evt; 520 int fcf_inuse; 521 uint32_t nlp_did; 522 523 spin_lock_irq(&phba->hbalock); 524 while (!list_empty(&phba->work_list)) { 525 list_remove_head((&phba->work_list), evtp, typeof(*evtp), 526 evt_listp); 527 spin_unlock_irq(&phba->hbalock); 528 free_evt = 1; 529 switch (evtp->evt) { 530 case LPFC_EVT_ELS_RETRY: 531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); 532 lpfc_els_retry_delay_handler(ndlp); 533 free_evt = 0; /* evt is part of ndlp */ 534 /* decrement the node reference count held 535 * for this queued work 536 */ 537 lpfc_nlp_put(ndlp); 538 break; 539 case LPFC_EVT_DEV_LOSS: 540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); 541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); 542 free_evt = 0; 543 /* decrement the node reference count held for 544 * this queued work 545 */ 546 nlp_did = ndlp->nlp_DID; 547 lpfc_nlp_put(ndlp); 548 if (phba->sli_rev == LPFC_SLI_REV4) 549 lpfc_sli4_post_dev_loss_tmo_handler(phba, 550 fcf_inuse, 551 nlp_did); 552 break; 553 case LPFC_EVT_ONLINE: 554 if (phba->link_state < LPFC_LINK_DOWN) 555 *(int *) (evtp->evt_arg1) = lpfc_online(phba); 556 else 557 *(int *) (evtp->evt_arg1) = 0; 558 complete((struct completion *)(evtp->evt_arg2)); 559 break; 560 case LPFC_EVT_OFFLINE_PREP: 561 if (phba->link_state >= LPFC_LINK_DOWN) 562 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 563 *(int *)(evtp->evt_arg1) = 0; 564 complete((struct completion *)(evtp->evt_arg2)); 565 break; 566 case LPFC_EVT_OFFLINE: 567 lpfc_offline(phba); 568 lpfc_sli_brdrestart(phba); 569 *(int *)(evtp->evt_arg1) = 570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); 571 lpfc_unblock_mgmt_io(phba); 572 complete((struct completion *)(evtp->evt_arg2)); 573 break; 574 case LPFC_EVT_WARM_START: 575 lpfc_offline(phba); 576 lpfc_reset_barrier(phba); 577 lpfc_sli_brdreset(phba); 578 lpfc_hba_down_post(phba); 579 *(int *)(evtp->evt_arg1) = 580 lpfc_sli_brdready(phba, HS_MBRDY); 581 lpfc_unblock_mgmt_io(phba); 582 complete((struct completion *)(evtp->evt_arg2)); 583 break; 584 case LPFC_EVT_KILL: 585 lpfc_offline(phba); 586 *(int *)(evtp->evt_arg1) 587 = (phba->pport->stopped) 588 ? 0 : lpfc_sli_brdkill(phba); 589 lpfc_unblock_mgmt_io(phba); 590 complete((struct completion *)(evtp->evt_arg2)); 591 break; 592 case LPFC_EVT_FASTPATH_MGMT_EVT: 593 lpfc_send_fastpath_evt(phba, evtp); 594 free_evt = 0; 595 break; 596 case LPFC_EVT_RESET_HBA: 597 if (!(phba->pport->load_flag & FC_UNLOADING)) 598 lpfc_reset_hba(phba); 599 break; 600 } 601 if (free_evt) 602 kfree(evtp); 603 spin_lock_irq(&phba->hbalock); 604 } 605 spin_unlock_irq(&phba->hbalock); 606 607 } 608 609 static void 610 lpfc_work_done(struct lpfc_hba *phba) 611 { 612 struct lpfc_sli_ring *pring; 613 uint32_t ha_copy, status, control, work_port_events; 614 struct lpfc_vport **vports; 615 struct lpfc_vport *vport; 616 int i; 617 618 spin_lock_irq(&phba->hbalock); 619 ha_copy = phba->work_ha; 620 phba->work_ha = 0; 621 spin_unlock_irq(&phba->hbalock); 622 623 /* First, try to post the next mailbox command to SLI4 device */ 624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) 625 lpfc_sli4_post_async_mbox(phba); 626 627 if (ha_copy & HA_ERATT) 628 /* Handle the error attention event */ 629 lpfc_handle_eratt(phba); 630 631 if (ha_copy & HA_MBATT) 632 lpfc_sli_handle_mb_event(phba); 633 634 if (ha_copy & HA_LATT) 635 lpfc_handle_latt(phba); 636 637 /* Process SLI4 events */ 638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { 639 if (phba->hba_flag & HBA_RRQ_ACTIVE) 640 lpfc_handle_rrq_active(phba); 641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT) 642 lpfc_sli4_fcp_xri_abort_event_proc(phba); 643 if (phba->hba_flag & ELS_XRI_ABORT_EVENT) 644 lpfc_sli4_els_xri_abort_event_proc(phba); 645 if (phba->hba_flag & ASYNC_EVENT) 646 lpfc_sli4_async_event_proc(phba); 647 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { 648 spin_lock_irq(&phba->hbalock); 649 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; 650 spin_unlock_irq(&phba->hbalock); 651 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); 652 } 653 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) 654 lpfc_sli4_fcf_redisc_event_proc(phba); 655 } 656 657 vports = lpfc_create_vport_work_array(phba); 658 if (vports != NULL) 659 for (i = 0; i <= phba->max_vports; i++) { 660 /* 661 * We could have no vports in array if unloading, so if 662 * this happens then just use the pport 663 */ 664 if (vports[i] == NULL && i == 0) 665 vport = phba->pport; 666 else 667 vport = vports[i]; 668 if (vport == NULL) 669 break; 670 spin_lock_irq(&vport->work_port_lock); 671 work_port_events = vport->work_port_events; 672 vport->work_port_events &= ~work_port_events; 673 spin_unlock_irq(&vport->work_port_lock); 674 if (work_port_events & WORKER_DISC_TMO) 675 lpfc_disc_timeout_handler(vport); 676 if (work_port_events & WORKER_ELS_TMO) 677 lpfc_els_timeout_handler(vport); 678 if (work_port_events & WORKER_HB_TMO) 679 lpfc_hb_timeout_handler(phba); 680 if (work_port_events & WORKER_MBOX_TMO) 681 lpfc_mbox_timeout_handler(phba); 682 if (work_port_events & WORKER_FABRIC_BLOCK_TMO) 683 lpfc_unblock_fabric_iocbs(phba); 684 if (work_port_events & WORKER_RAMP_DOWN_QUEUE) 685 lpfc_ramp_down_queue_handler(phba); 686 if (work_port_events & WORKER_DELAYED_DISC_TMO) 687 lpfc_delayed_disc_timeout_handler(vport); 688 } 689 lpfc_destroy_vport_work_array(phba, vports); 690 691 pring = lpfc_phba_elsring(phba); 692 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); 693 status >>= (4*LPFC_ELS_RING); 694 if (pring && (status & HA_RXMASK || 695 pring->flag & LPFC_DEFERRED_RING_EVENT || 696 phba->hba_flag & HBA_SP_QUEUE_EVT)) { 697 if (pring->flag & LPFC_STOP_IOCB_EVENT) { 698 pring->flag |= LPFC_DEFERRED_RING_EVENT; 699 /* Preserve legacy behavior. */ 700 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) 701 set_bit(LPFC_DATA_READY, &phba->data_flags); 702 } else { 703 if (phba->link_state >= LPFC_LINK_UP || 704 phba->link_flag & LS_MDS_LOOPBACK) { 705 pring->flag &= ~LPFC_DEFERRED_RING_EVENT; 706 lpfc_sli_handle_slow_ring_event(phba, pring, 707 (status & 708 HA_RXMASK)); 709 } 710 } 711 if (phba->sli_rev == LPFC_SLI_REV4) 712 lpfc_drain_txq(phba); 713 /* 714 * Turn on Ring interrupts 715 */ 716 if (phba->sli_rev <= LPFC_SLI_REV3) { 717 spin_lock_irq(&phba->hbalock); 718 control = readl(phba->HCregaddr); 719 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { 720 lpfc_debugfs_slow_ring_trc(phba, 721 "WRK Enable ring: cntl:x%x hacopy:x%x", 722 control, ha_copy, 0); 723 724 control |= (HC_R0INT_ENA << LPFC_ELS_RING); 725 writel(control, phba->HCregaddr); 726 readl(phba->HCregaddr); /* flush */ 727 } else { 728 lpfc_debugfs_slow_ring_trc(phba, 729 "WRK Ring ok: cntl:x%x hacopy:x%x", 730 control, ha_copy, 0); 731 } 732 spin_unlock_irq(&phba->hbalock); 733 } 734 } 735 lpfc_work_list_done(phba); 736 } 737 738 int 739 lpfc_do_work(void *p) 740 { 741 struct lpfc_hba *phba = p; 742 int rc; 743 744 set_user_nice(current, MIN_NICE); 745 current->flags |= PF_NOFREEZE; 746 phba->data_flags = 0; 747 748 while (!kthread_should_stop()) { 749 /* wait and check worker queue activities */ 750 rc = wait_event_interruptible(phba->work_waitq, 751 (test_and_clear_bit(LPFC_DATA_READY, 752 &phba->data_flags) 753 || kthread_should_stop())); 754 /* Signal wakeup shall terminate the worker thread */ 755 if (rc) { 756 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 757 "0433 Wakeup on signal: rc=x%x\n", rc); 758 break; 759 } 760 761 /* Attend pending lpfc data processing */ 762 lpfc_work_done(phba); 763 } 764 phba->worker_thread = NULL; 765 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 766 "0432 Worker thread stopped.\n"); 767 return 0; 768 } 769 770 /* 771 * This is only called to handle FC worker events. Since this a rare 772 * occurrence, we allocate a struct lpfc_work_evt structure here instead of 773 * embedding it in the IOCB. 774 */ 775 int 776 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, 777 uint32_t evt) 778 { 779 struct lpfc_work_evt *evtp; 780 unsigned long flags; 781 782 /* 783 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will 784 * be queued to worker thread for processing 785 */ 786 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); 787 if (!evtp) 788 return 0; 789 790 evtp->evt_arg1 = arg1; 791 evtp->evt_arg2 = arg2; 792 evtp->evt = evt; 793 794 spin_lock_irqsave(&phba->hbalock, flags); 795 list_add_tail(&evtp->evt_listp, &phba->work_list); 796 spin_unlock_irqrestore(&phba->hbalock, flags); 797 798 lpfc_worker_wake_up(phba); 799 800 return 1; 801 } 802 803 void 804 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 805 { 806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 807 struct lpfc_hba *phba = vport->phba; 808 struct lpfc_nodelist *ndlp, *next_ndlp; 809 810 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 811 if (!NLP_CHK_NODE_ACT(ndlp)) 812 continue; 813 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 814 continue; 815 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || 816 ((vport->port_type == LPFC_NPIV_PORT) && 817 (ndlp->nlp_DID == NameServer_DID))) 818 lpfc_unreg_rpi(vport, ndlp); 819 820 /* Leave Fabric nodes alone on link down */ 821 if ((phba->sli_rev < LPFC_SLI_REV4) && 822 (!remove && ndlp->nlp_type & NLP_FABRIC)) 823 continue; 824 lpfc_disc_state_machine(vport, ndlp, NULL, 825 remove 826 ? NLP_EVT_DEVICE_RM 827 : NLP_EVT_DEVICE_RECOVERY); 828 } 829 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { 830 if (phba->sli_rev == LPFC_SLI_REV4) 831 lpfc_sli4_unreg_all_rpis(vport); 832 lpfc_mbx_unreg_vpi(vport); 833 spin_lock_irq(shost->host_lock); 834 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 835 spin_unlock_irq(shost->host_lock); 836 } 837 } 838 839 void 840 lpfc_port_link_failure(struct lpfc_vport *vport) 841 { 842 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); 843 844 /* Cleanup any outstanding received buffers */ 845 lpfc_cleanup_rcv_buffers(vport); 846 847 /* Cleanup any outstanding RSCN activity */ 848 lpfc_els_flush_rscn(vport); 849 850 /* Cleanup any outstanding ELS commands */ 851 lpfc_els_flush_cmd(vport); 852 853 lpfc_cleanup_rpis(vport, 0); 854 855 /* Turn off discovery timer if its running */ 856 lpfc_can_disctmo(vport); 857 } 858 859 void 860 lpfc_linkdown_port(struct lpfc_vport *vport) 861 { 862 struct lpfc_hba *phba = vport->phba; 863 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 864 865 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 866 fc_host_post_event(shost, fc_get_event_number(), 867 FCH_EVT_LINKDOWN, 0); 868 869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 870 "Link Down: state:x%x rtry:x%x flg:x%x", 871 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 872 873 lpfc_port_link_failure(vport); 874 875 /* Stop delayed Nport discovery */ 876 spin_lock_irq(shost->host_lock); 877 vport->fc_flag &= ~FC_DISC_DELAYED; 878 spin_unlock_irq(shost->host_lock); 879 del_timer_sync(&vport->delayed_disc_tmo); 880 } 881 882 int 883 lpfc_linkdown(struct lpfc_hba *phba) 884 { 885 struct lpfc_vport *vport = phba->pport; 886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 887 struct lpfc_vport **vports; 888 LPFC_MBOXQ_t *mb; 889 int i; 890 891 if (phba->link_state == LPFC_LINK_DOWN) { 892 if (phba->sli4_hba.conf_trunk) { 893 phba->trunk_link.link0.state = 0; 894 phba->trunk_link.link1.state = 0; 895 phba->trunk_link.link2.state = 0; 896 phba->trunk_link.link3.state = 0; 897 } 898 return 0; 899 } 900 /* Block all SCSI stack I/Os */ 901 lpfc_scsi_dev_block(phba); 902 903 phba->defer_flogi_acc_flag = false; 904 905 spin_lock_irq(&phba->hbalock); 906 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 907 spin_unlock_irq(&phba->hbalock); 908 if (phba->link_state > LPFC_LINK_DOWN) { 909 phba->link_state = LPFC_LINK_DOWN; 910 if (phba->sli4_hba.conf_trunk) { 911 phba->trunk_link.link0.state = 0; 912 phba->trunk_link.link1.state = 0; 913 phba->trunk_link.link2.state = 0; 914 phba->trunk_link.link3.state = 0; 915 } 916 spin_lock_irq(shost->host_lock); 917 phba->pport->fc_flag &= ~FC_LBIT; 918 spin_unlock_irq(shost->host_lock); 919 } 920 vports = lpfc_create_vport_work_array(phba); 921 if (vports != NULL) { 922 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 923 /* Issue a LINK DOWN event to all nodes */ 924 lpfc_linkdown_port(vports[i]); 925 926 vports[i]->fc_myDID = 0; 927 928 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 929 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 930 if (phba->nvmet_support) 931 lpfc_nvmet_update_targetport(phba); 932 else 933 lpfc_nvme_update_localport(vports[i]); 934 } 935 } 936 } 937 lpfc_destroy_vport_work_array(phba, vports); 938 /* Clean up any firmware default rpi's */ 939 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 940 if (mb) { 941 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); 942 mb->vport = vport; 943 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 944 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 945 == MBX_NOT_FINISHED) { 946 mempool_free(mb, phba->mbox_mem_pool); 947 } 948 } 949 950 /* Setup myDID for link up if we are in pt2pt mode */ 951 if (phba->pport->fc_flag & FC_PT2PT) { 952 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 953 if (mb) { 954 lpfc_config_link(phba, mb); 955 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 956 mb->vport = vport; 957 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) 958 == MBX_NOT_FINISHED) { 959 mempool_free(mb, phba->mbox_mem_pool); 960 } 961 } 962 spin_lock_irq(shost->host_lock); 963 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); 964 phba->pport->rcv_flogi_cnt = 0; 965 spin_unlock_irq(shost->host_lock); 966 } 967 return 0; 968 } 969 970 static void 971 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) 972 { 973 struct lpfc_nodelist *ndlp; 974 975 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 976 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 977 if (!NLP_CHK_NODE_ACT(ndlp)) 978 continue; 979 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 980 continue; 981 if (ndlp->nlp_type & NLP_FABRIC) { 982 /* On Linkup its safe to clean up the ndlp 983 * from Fabric connections. 984 */ 985 if (ndlp->nlp_DID != Fabric_DID) 986 lpfc_unreg_rpi(vport, ndlp); 987 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 988 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 989 /* Fail outstanding IO now since device is 990 * marked for PLOGI. 991 */ 992 lpfc_unreg_rpi(vport, ndlp); 993 } 994 } 995 } 996 997 static void 998 lpfc_linkup_port(struct lpfc_vport *vport) 999 { 1000 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1001 struct lpfc_hba *phba = vport->phba; 1002 1003 if ((vport->load_flag & FC_UNLOADING) != 0) 1004 return; 1005 1006 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 1007 "Link Up: top:x%x speed:x%x flg:x%x", 1008 phba->fc_topology, phba->fc_linkspeed, phba->link_flag); 1009 1010 /* If NPIV is not enabled, only bring the physical port up */ 1011 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 1012 (vport != phba->pport)) 1013 return; 1014 1015 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1016 fc_host_post_event(shost, fc_get_event_number(), 1017 FCH_EVT_LINKUP, 0); 1018 1019 spin_lock_irq(shost->host_lock); 1020 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | 1021 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); 1022 vport->fc_flag |= FC_NDISC_ACTIVE; 1023 vport->fc_ns_retry = 0; 1024 spin_unlock_irq(shost->host_lock); 1025 1026 if (vport->fc_flag & FC_LBIT) 1027 lpfc_linkup_cleanup_nodes(vport); 1028 1029 } 1030 1031 static int 1032 lpfc_linkup(struct lpfc_hba *phba) 1033 { 1034 struct lpfc_vport **vports; 1035 int i; 1036 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); 1037 1038 phba->link_state = LPFC_LINK_UP; 1039 1040 /* Unblock fabric iocbs if they are blocked */ 1041 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); 1042 del_timer_sync(&phba->fabric_block_timer); 1043 1044 vports = lpfc_create_vport_work_array(phba); 1045 if (vports != NULL) 1046 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1047 lpfc_linkup_port(vports[i]); 1048 lpfc_destroy_vport_work_array(phba, vports); 1049 1050 /* Clear the pport flogi counter in case the link down was 1051 * absorbed without an ACQE. No lock here - in worker thread 1052 * and discovery is synchronized. 1053 */ 1054 spin_lock_irq(shost->host_lock); 1055 phba->pport->rcv_flogi_cnt = 0; 1056 spin_unlock_irq(shost->host_lock); 1057 1058 /* reinitialize initial FLOGI flag */ 1059 phba->hba_flag &= ~(HBA_FLOGI_ISSUED); 1060 phba->defer_flogi_acc_flag = false; 1061 1062 return 0; 1063 } 1064 1065 /* 1066 * This routine handles processing a CLEAR_LA mailbox 1067 * command upon completion. It is setup in the LPFC_MBOXQ 1068 * as the completion routine when the command is 1069 * handed off to the SLI layer. SLI3 only. 1070 */ 1071 static void 1072 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1073 { 1074 struct lpfc_vport *vport = pmb->vport; 1075 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1076 struct lpfc_sli *psli = &phba->sli; 1077 MAILBOX_t *mb = &pmb->u.mb; 1078 uint32_t control; 1079 1080 /* Since we don't do discovery right now, turn these off here */ 1081 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1082 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1083 1084 /* Check for error */ 1085 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { 1086 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ 1087 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1088 "0320 CLEAR_LA mbxStatus error x%x hba " 1089 "state x%x\n", 1090 mb->mbxStatus, vport->port_state); 1091 phba->link_state = LPFC_HBA_ERROR; 1092 goto out; 1093 } 1094 1095 if (vport->port_type == LPFC_PHYSICAL_PORT) 1096 phba->link_state = LPFC_HBA_READY; 1097 1098 spin_lock_irq(&phba->hbalock); 1099 psli->sli_flag |= LPFC_PROCESS_LA; 1100 control = readl(phba->HCregaddr); 1101 control |= HC_LAINT_ENA; 1102 writel(control, phba->HCregaddr); 1103 readl(phba->HCregaddr); /* flush */ 1104 spin_unlock_irq(&phba->hbalock); 1105 mempool_free(pmb, phba->mbox_mem_pool); 1106 return; 1107 1108 out: 1109 /* Device Discovery completes */ 1110 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1111 "0225 Device Discovery completes\n"); 1112 mempool_free(pmb, phba->mbox_mem_pool); 1113 1114 spin_lock_irq(shost->host_lock); 1115 vport->fc_flag &= ~FC_ABORT_DISCOVERY; 1116 spin_unlock_irq(shost->host_lock); 1117 1118 lpfc_can_disctmo(vport); 1119 1120 /* turn on Link Attention interrupts */ 1121 1122 spin_lock_irq(&phba->hbalock); 1123 psli->sli_flag |= LPFC_PROCESS_LA; 1124 control = readl(phba->HCregaddr); 1125 control |= HC_LAINT_ENA; 1126 writel(control, phba->HCregaddr); 1127 readl(phba->HCregaddr); /* flush */ 1128 spin_unlock_irq(&phba->hbalock); 1129 1130 return; 1131 } 1132 1133 1134 void 1135 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1136 { 1137 struct lpfc_vport *vport = pmb->vport; 1138 uint8_t bbscn = 0; 1139 1140 if (pmb->u.mb.mbxStatus) 1141 goto out; 1142 1143 mempool_free(pmb, phba->mbox_mem_pool); 1144 1145 /* don't perform discovery for SLI4 loopback diagnostic test */ 1146 if ((phba->sli_rev == LPFC_SLI_REV4) && 1147 !(phba->hba_flag & HBA_FCOE_MODE) && 1148 (phba->link_flag & LS_LOOPBACK_MODE)) 1149 return; 1150 1151 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 1152 vport->fc_flag & FC_PUBLIC_LOOP && 1153 !(vport->fc_flag & FC_LBIT)) { 1154 /* Need to wait for FAN - use discovery timer 1155 * for timeout. port_state is identically 1156 * LPFC_LOCAL_CFG_LINK while waiting for FAN 1157 */ 1158 lpfc_set_disctmo(vport); 1159 return; 1160 } 1161 1162 /* Start discovery by sending a FLOGI. port_state is identically 1163 * LPFC_FLOGI while waiting for FLOGI cmpl 1164 */ 1165 if (vport->port_state != LPFC_FLOGI) { 1166 if (phba->bbcredit_support && phba->cfg_enable_bbcr) { 1167 bbscn = bf_get(lpfc_bbscn_def, 1168 &phba->sli4_hba.bbscn_params); 1169 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; 1170 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); 1171 } 1172 lpfc_initial_flogi(vport); 1173 } else if (vport->fc_flag & FC_PT2PT) { 1174 lpfc_disc_start(vport); 1175 } 1176 return; 1177 1178 out: 1179 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1180 "0306 CONFIG_LINK mbxStatus error x%x " 1181 "HBA state x%x\n", 1182 pmb->u.mb.mbxStatus, vport->port_state); 1183 mempool_free(pmb, phba->mbox_mem_pool); 1184 1185 lpfc_linkdown(phba); 1186 1187 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1188 "0200 CONFIG_LINK bad hba state x%x\n", 1189 vport->port_state); 1190 1191 lpfc_issue_clear_la(phba, vport); 1192 return; 1193 } 1194 1195 /** 1196 * lpfc_sli4_clear_fcf_rr_bmask 1197 * @phba pointer to the struct lpfc_hba for this port. 1198 * This fucnction resets the round robin bit mask and clears the 1199 * fcf priority list. The list deletions are done while holding the 1200 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared 1201 * from the lpfc_fcf_pri record. 1202 **/ 1203 void 1204 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) 1205 { 1206 struct lpfc_fcf_pri *fcf_pri; 1207 struct lpfc_fcf_pri *next_fcf_pri; 1208 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); 1209 spin_lock_irq(&phba->hbalock); 1210 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 1211 &phba->fcf.fcf_pri_list, list) { 1212 list_del_init(&fcf_pri->list); 1213 fcf_pri->fcf_rec.flag = 0; 1214 } 1215 spin_unlock_irq(&phba->hbalock); 1216 } 1217 static void 1218 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1219 { 1220 struct lpfc_vport *vport = mboxq->vport; 1221 1222 if (mboxq->u.mb.mbxStatus) { 1223 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1224 "2017 REG_FCFI mbxStatus error x%x " 1225 "HBA state x%x\n", 1226 mboxq->u.mb.mbxStatus, vport->port_state); 1227 goto fail_out; 1228 } 1229 1230 /* Start FCoE discovery by sending a FLOGI. */ 1231 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); 1232 /* Set the FCFI registered flag */ 1233 spin_lock_irq(&phba->hbalock); 1234 phba->fcf.fcf_flag |= FCF_REGISTERED; 1235 spin_unlock_irq(&phba->hbalock); 1236 1237 /* If there is a pending FCoE event, restart FCF table scan. */ 1238 if ((!(phba->hba_flag & FCF_RR_INPROG)) && 1239 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) 1240 goto fail_out; 1241 1242 /* Mark successful completion of FCF table scan */ 1243 spin_lock_irq(&phba->hbalock); 1244 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1245 phba->hba_flag &= ~FCF_TS_INPROG; 1246 if (vport->port_state != LPFC_FLOGI) { 1247 phba->hba_flag |= FCF_RR_INPROG; 1248 spin_unlock_irq(&phba->hbalock); 1249 lpfc_issue_init_vfi(vport); 1250 goto out; 1251 } 1252 spin_unlock_irq(&phba->hbalock); 1253 goto out; 1254 1255 fail_out: 1256 spin_lock_irq(&phba->hbalock); 1257 phba->hba_flag &= ~FCF_RR_INPROG; 1258 spin_unlock_irq(&phba->hbalock); 1259 out: 1260 mempool_free(mboxq, phba->mbox_mem_pool); 1261 } 1262 1263 /** 1264 * lpfc_fab_name_match - Check if the fcf fabric name match. 1265 * @fab_name: pointer to fabric name. 1266 * @new_fcf_record: pointer to fcf record. 1267 * 1268 * This routine compare the fcf record's fabric name with provided 1269 * fabric name. If the fabric name are identical this function 1270 * returns 1 else return 0. 1271 **/ 1272 static uint32_t 1273 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) 1274 { 1275 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) 1276 return 0; 1277 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) 1278 return 0; 1279 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) 1280 return 0; 1281 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) 1282 return 0; 1283 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) 1284 return 0; 1285 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) 1286 return 0; 1287 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) 1288 return 0; 1289 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) 1290 return 0; 1291 return 1; 1292 } 1293 1294 /** 1295 * lpfc_sw_name_match - Check if the fcf switch name match. 1296 * @fab_name: pointer to fabric name. 1297 * @new_fcf_record: pointer to fcf record. 1298 * 1299 * This routine compare the fcf record's switch name with provided 1300 * switch name. If the switch name are identical this function 1301 * returns 1 else return 0. 1302 **/ 1303 static uint32_t 1304 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) 1305 { 1306 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) 1307 return 0; 1308 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) 1309 return 0; 1310 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) 1311 return 0; 1312 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) 1313 return 0; 1314 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) 1315 return 0; 1316 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) 1317 return 0; 1318 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) 1319 return 0; 1320 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) 1321 return 0; 1322 return 1; 1323 } 1324 1325 /** 1326 * lpfc_mac_addr_match - Check if the fcf mac address match. 1327 * @mac_addr: pointer to mac address. 1328 * @new_fcf_record: pointer to fcf record. 1329 * 1330 * This routine compare the fcf record's mac address with HBA's 1331 * FCF mac address. If the mac addresses are identical this function 1332 * returns 1 else return 0. 1333 **/ 1334 static uint32_t 1335 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) 1336 { 1337 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) 1338 return 0; 1339 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) 1340 return 0; 1341 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) 1342 return 0; 1343 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) 1344 return 0; 1345 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) 1346 return 0; 1347 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) 1348 return 0; 1349 return 1; 1350 } 1351 1352 static bool 1353 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) 1354 { 1355 return (curr_vlan_id == new_vlan_id); 1356 } 1357 1358 /** 1359 * lpfc_update_fcf_record - Update driver fcf record 1360 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. 1361 * @phba: pointer to lpfc hba data structure. 1362 * @fcf_index: Index for the lpfc_fcf_record. 1363 * @new_fcf_record: pointer to hba fcf record. 1364 * 1365 * This routine updates the driver FCF priority record from the new HBA FCF 1366 * record. This routine is called with the host lock held. 1367 **/ 1368 static void 1369 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, 1370 struct fcf_record *new_fcf_record 1371 ) 1372 { 1373 struct lpfc_fcf_pri *fcf_pri; 1374 1375 lockdep_assert_held(&phba->hbalock); 1376 1377 fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 1378 fcf_pri->fcf_rec.fcf_index = fcf_index; 1379 /* FCF record priority */ 1380 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 1381 1382 } 1383 1384 /** 1385 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. 1386 * @fcf: pointer to driver fcf record. 1387 * @new_fcf_record: pointer to fcf record. 1388 * 1389 * This routine copies the FCF information from the FCF 1390 * record to lpfc_hba data structure. 1391 **/ 1392 static void 1393 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, 1394 struct fcf_record *new_fcf_record) 1395 { 1396 /* Fabric name */ 1397 fcf_rec->fabric_name[0] = 1398 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); 1399 fcf_rec->fabric_name[1] = 1400 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); 1401 fcf_rec->fabric_name[2] = 1402 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); 1403 fcf_rec->fabric_name[3] = 1404 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); 1405 fcf_rec->fabric_name[4] = 1406 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); 1407 fcf_rec->fabric_name[5] = 1408 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); 1409 fcf_rec->fabric_name[6] = 1410 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); 1411 fcf_rec->fabric_name[7] = 1412 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); 1413 /* Mac address */ 1414 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); 1415 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); 1416 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); 1417 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); 1418 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); 1419 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); 1420 /* FCF record index */ 1421 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 1422 /* FCF record priority */ 1423 fcf_rec->priority = new_fcf_record->fip_priority; 1424 /* Switch name */ 1425 fcf_rec->switch_name[0] = 1426 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); 1427 fcf_rec->switch_name[1] = 1428 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); 1429 fcf_rec->switch_name[2] = 1430 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); 1431 fcf_rec->switch_name[3] = 1432 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); 1433 fcf_rec->switch_name[4] = 1434 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); 1435 fcf_rec->switch_name[5] = 1436 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); 1437 fcf_rec->switch_name[6] = 1438 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); 1439 fcf_rec->switch_name[7] = 1440 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); 1441 } 1442 1443 /** 1444 * lpfc_update_fcf_record - Update driver fcf record 1445 * @phba: pointer to lpfc hba data structure. 1446 * @fcf_rec: pointer to driver fcf record. 1447 * @new_fcf_record: pointer to hba fcf record. 1448 * @addr_mode: address mode to be set to the driver fcf record. 1449 * @vlan_id: vlan tag to be set to the driver fcf record. 1450 * @flag: flag bits to be set to the driver fcf record. 1451 * 1452 * This routine updates the driver FCF record from the new HBA FCF record 1453 * together with the address mode, vlan_id, and other informations. This 1454 * routine is called with the host lock held. 1455 **/ 1456 static void 1457 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, 1458 struct fcf_record *new_fcf_record, uint32_t addr_mode, 1459 uint16_t vlan_id, uint32_t flag) 1460 { 1461 lockdep_assert_held(&phba->hbalock); 1462 1463 /* Copy the fields from the HBA's FCF record */ 1464 lpfc_copy_fcf_record(fcf_rec, new_fcf_record); 1465 /* Update other fields of driver FCF record */ 1466 fcf_rec->addr_mode = addr_mode; 1467 fcf_rec->vlan_id = vlan_id; 1468 fcf_rec->flag |= (flag | RECORD_VALID); 1469 __lpfc_update_fcf_record_pri(phba, 1470 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), 1471 new_fcf_record); 1472 } 1473 1474 /** 1475 * lpfc_register_fcf - Register the FCF with hba. 1476 * @phba: pointer to lpfc hba data structure. 1477 * 1478 * This routine issues a register fcfi mailbox command to register 1479 * the fcf with HBA. 1480 **/ 1481 static void 1482 lpfc_register_fcf(struct lpfc_hba *phba) 1483 { 1484 LPFC_MBOXQ_t *fcf_mbxq; 1485 int rc; 1486 1487 spin_lock_irq(&phba->hbalock); 1488 /* If the FCF is not available do nothing. */ 1489 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { 1490 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1491 spin_unlock_irq(&phba->hbalock); 1492 return; 1493 } 1494 1495 /* The FCF is already registered, start discovery */ 1496 if (phba->fcf.fcf_flag & FCF_REGISTERED) { 1497 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); 1498 phba->hba_flag &= ~FCF_TS_INPROG; 1499 if (phba->pport->port_state != LPFC_FLOGI && 1500 phba->pport->fc_flag & FC_FABRIC) { 1501 phba->hba_flag |= FCF_RR_INPROG; 1502 spin_unlock_irq(&phba->hbalock); 1503 lpfc_initial_flogi(phba->pport); 1504 return; 1505 } 1506 spin_unlock_irq(&phba->hbalock); 1507 return; 1508 } 1509 spin_unlock_irq(&phba->hbalock); 1510 1511 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1512 if (!fcf_mbxq) { 1513 spin_lock_irq(&phba->hbalock); 1514 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1515 spin_unlock_irq(&phba->hbalock); 1516 return; 1517 } 1518 1519 lpfc_reg_fcfi(phba, fcf_mbxq); 1520 fcf_mbxq->vport = phba->pport; 1521 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; 1522 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); 1523 if (rc == MBX_NOT_FINISHED) { 1524 spin_lock_irq(&phba->hbalock); 1525 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1526 spin_unlock_irq(&phba->hbalock); 1527 mempool_free(fcf_mbxq, phba->mbox_mem_pool); 1528 } 1529 1530 return; 1531 } 1532 1533 /** 1534 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. 1535 * @phba: pointer to lpfc hba data structure. 1536 * @new_fcf_record: pointer to fcf record. 1537 * @boot_flag: Indicates if this record used by boot bios. 1538 * @addr_mode: The address mode to be used by this FCF 1539 * @vlan_id: The vlan id to be used as vlan tagging by this FCF. 1540 * 1541 * This routine compare the fcf record with connect list obtained from the 1542 * config region to decide if this FCF can be used for SAN discovery. It returns 1543 * 1 if this record can be used for SAN discovery else return zero. If this FCF 1544 * record can be used for SAN discovery, the boot_flag will indicate if this FCF 1545 * is used by boot bios and addr_mode will indicate the addressing mode to be 1546 * used for this FCF when the function returns. 1547 * If the FCF record need to be used with a particular vlan id, the vlan is 1548 * set in the vlan_id on return of the function. If not VLAN tagging need to 1549 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; 1550 **/ 1551 static int 1552 lpfc_match_fcf_conn_list(struct lpfc_hba *phba, 1553 struct fcf_record *new_fcf_record, 1554 uint32_t *boot_flag, uint32_t *addr_mode, 1555 uint16_t *vlan_id) 1556 { 1557 struct lpfc_fcf_conn_entry *conn_entry; 1558 int i, j, fcf_vlan_id = 0; 1559 1560 /* Find the lowest VLAN id in the FCF record */ 1561 for (i = 0; i < 512; i++) { 1562 if (new_fcf_record->vlan_bitmap[i]) { 1563 fcf_vlan_id = i * 8; 1564 j = 0; 1565 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { 1566 j++; 1567 fcf_vlan_id++; 1568 } 1569 break; 1570 } 1571 } 1572 1573 /* FCF not valid/available or solicitation in progress */ 1574 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || 1575 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || 1576 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) 1577 return 0; 1578 1579 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 1580 *boot_flag = 0; 1581 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1582 new_fcf_record); 1583 if (phba->valid_vlan) 1584 *vlan_id = phba->vlan_id; 1585 else 1586 *vlan_id = LPFC_FCOE_NULL_VID; 1587 return 1; 1588 } 1589 1590 /* 1591 * If there are no FCF connection table entry, driver connect to all 1592 * FCFs. 1593 */ 1594 if (list_empty(&phba->fcf_conn_rec_list)) { 1595 *boot_flag = 0; 1596 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1597 new_fcf_record); 1598 1599 /* 1600 * When there are no FCF connect entries, use driver's default 1601 * addressing mode - FPMA. 1602 */ 1603 if (*addr_mode & LPFC_FCF_FPMA) 1604 *addr_mode = LPFC_FCF_FPMA; 1605 1606 /* If FCF record report a vlan id use that vlan id */ 1607 if (fcf_vlan_id) 1608 *vlan_id = fcf_vlan_id; 1609 else 1610 *vlan_id = LPFC_FCOE_NULL_VID; 1611 return 1; 1612 } 1613 1614 list_for_each_entry(conn_entry, 1615 &phba->fcf_conn_rec_list, list) { 1616 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) 1617 continue; 1618 1619 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && 1620 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, 1621 new_fcf_record)) 1622 continue; 1623 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && 1624 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, 1625 new_fcf_record)) 1626 continue; 1627 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { 1628 /* 1629 * If the vlan bit map does not have the bit set for the 1630 * vlan id to be used, then it is not a match. 1631 */ 1632 if (!(new_fcf_record->vlan_bitmap 1633 [conn_entry->conn_rec.vlan_tag / 8] & 1634 (1 << (conn_entry->conn_rec.vlan_tag % 8)))) 1635 continue; 1636 } 1637 1638 /* 1639 * If connection record does not support any addressing mode, 1640 * skip the FCF record. 1641 */ 1642 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) 1643 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) 1644 continue; 1645 1646 /* 1647 * Check if the connection record specifies a required 1648 * addressing mode. 1649 */ 1650 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1651 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { 1652 1653 /* 1654 * If SPMA required but FCF not support this continue. 1655 */ 1656 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1657 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1658 new_fcf_record) & LPFC_FCF_SPMA)) 1659 continue; 1660 1661 /* 1662 * If FPMA required but FCF not support this continue. 1663 */ 1664 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1665 !(bf_get(lpfc_fcf_record_mac_addr_prov, 1666 new_fcf_record) & LPFC_FCF_FPMA)) 1667 continue; 1668 } 1669 1670 /* 1671 * This fcf record matches filtering criteria. 1672 */ 1673 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) 1674 *boot_flag = 1; 1675 else 1676 *boot_flag = 0; 1677 1678 /* 1679 * If user did not specify any addressing mode, or if the 1680 * preferred addressing mode specified by user is not supported 1681 * by FCF, allow fabric to pick the addressing mode. 1682 */ 1683 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, 1684 new_fcf_record); 1685 /* 1686 * If the user specified a required address mode, assign that 1687 * address mode 1688 */ 1689 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1690 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) 1691 *addr_mode = (conn_entry->conn_rec.flags & 1692 FCFCNCT_AM_SPMA) ? 1693 LPFC_FCF_SPMA : LPFC_FCF_FPMA; 1694 /* 1695 * If the user specified a preferred address mode, use the 1696 * addr mode only if FCF support the addr_mode. 1697 */ 1698 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1699 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1700 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1701 (*addr_mode & LPFC_FCF_SPMA)) 1702 *addr_mode = LPFC_FCF_SPMA; 1703 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && 1704 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && 1705 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && 1706 (*addr_mode & LPFC_FCF_FPMA)) 1707 *addr_mode = LPFC_FCF_FPMA; 1708 1709 /* If matching connect list has a vlan id, use it */ 1710 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) 1711 *vlan_id = conn_entry->conn_rec.vlan_tag; 1712 /* 1713 * If no vlan id is specified in connect list, use the vlan id 1714 * in the FCF record 1715 */ 1716 else if (fcf_vlan_id) 1717 *vlan_id = fcf_vlan_id; 1718 else 1719 *vlan_id = LPFC_FCOE_NULL_VID; 1720 1721 return 1; 1722 } 1723 1724 return 0; 1725 } 1726 1727 /** 1728 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. 1729 * @phba: pointer to lpfc hba data structure. 1730 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. 1731 * 1732 * This function check if there is any fcoe event pending while driver 1733 * scan FCF entries. If there is any pending event, it will restart the 1734 * FCF saning and return 1 else return 0. 1735 */ 1736 int 1737 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) 1738 { 1739 /* 1740 * If the Link is up and no FCoE events while in the 1741 * FCF discovery, no need to restart FCF discovery. 1742 */ 1743 if ((phba->link_state >= LPFC_LINK_UP) && 1744 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) 1745 return 0; 1746 1747 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1748 "2768 Pending link or FCF event during current " 1749 "handling of the previous event: link_state:x%x, " 1750 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", 1751 phba->link_state, phba->fcoe_eventtag_at_fcf_scan, 1752 phba->fcoe_eventtag); 1753 1754 spin_lock_irq(&phba->hbalock); 1755 phba->fcf.fcf_flag &= ~FCF_AVAILABLE; 1756 spin_unlock_irq(&phba->hbalock); 1757 1758 if (phba->link_state >= LPFC_LINK_UP) { 1759 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1760 "2780 Restart FCF table scan due to " 1761 "pending FCF event:evt_tag_at_scan:x%x, " 1762 "evt_tag_current:x%x\n", 1763 phba->fcoe_eventtag_at_fcf_scan, 1764 phba->fcoe_eventtag); 1765 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 1766 } else { 1767 /* 1768 * Do not continue FCF discovery and clear FCF_TS_INPROG 1769 * flag 1770 */ 1771 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 1772 "2833 Stop FCF discovery process due to link " 1773 "state change (x%x)\n", phba->link_state); 1774 spin_lock_irq(&phba->hbalock); 1775 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); 1776 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); 1777 spin_unlock_irq(&phba->hbalock); 1778 } 1779 1780 /* Unregister the currently registered FCF if required */ 1781 if (unreg_fcf) { 1782 spin_lock_irq(&phba->hbalock); 1783 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 1784 spin_unlock_irq(&phba->hbalock); 1785 lpfc_sli4_unregister_fcf(phba); 1786 } 1787 return 1; 1788 } 1789 1790 /** 1791 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record 1792 * @phba: pointer to lpfc hba data structure. 1793 * @fcf_cnt: number of eligible fcf record seen so far. 1794 * 1795 * This function makes an running random selection decision on FCF record to 1796 * use through a sequence of @fcf_cnt eligible FCF records with equal 1797 * probability. To perform integer manunipulation of random numbers with 1798 * size unit32_t, the lower 16 bits of the 32-bit random number returned 1799 * from prandom_u32() are taken as the random random number generated. 1800 * 1801 * Returns true when outcome is for the newly read FCF record should be 1802 * chosen; otherwise, return false when outcome is for keeping the previously 1803 * chosen FCF record. 1804 **/ 1805 static bool 1806 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) 1807 { 1808 uint32_t rand_num; 1809 1810 /* Get 16-bit uniform random number */ 1811 rand_num = 0xFFFF & prandom_u32(); 1812 1813 /* Decision with probability 1/fcf_cnt */ 1814 if ((fcf_cnt * rand_num) < 0xFFFF) 1815 return true; 1816 else 1817 return false; 1818 } 1819 1820 /** 1821 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. 1822 * @phba: pointer to lpfc hba data structure. 1823 * @mboxq: pointer to mailbox object. 1824 * @next_fcf_index: pointer to holder of next fcf index. 1825 * 1826 * This routine parses the non-embedded fcf mailbox command by performing the 1827 * necessarily error checking, non-embedded read FCF record mailbox command 1828 * SGE parsing, and endianness swapping. 1829 * 1830 * Returns the pointer to the new FCF record in the non-embedded mailbox 1831 * command DMA memory if successfully, other NULL. 1832 */ 1833 static struct fcf_record * 1834 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, 1835 uint16_t *next_fcf_index) 1836 { 1837 void *virt_addr; 1838 struct lpfc_mbx_sge sge; 1839 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1840 uint32_t shdr_status, shdr_add_status, if_type; 1841 union lpfc_sli4_cfg_shdr *shdr; 1842 struct fcf_record *new_fcf_record; 1843 1844 /* Get the first SGE entry from the non-embedded DMA memory. This 1845 * routine only uses a single SGE. 1846 */ 1847 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1848 if (unlikely(!mboxq->sge_array)) { 1849 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1850 "2524 Failed to get the non-embedded SGE " 1851 "virtual address\n"); 1852 return NULL; 1853 } 1854 virt_addr = mboxq->sge_array->addr[0]; 1855 1856 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; 1857 lpfc_sli_pcimem_bcopy(shdr, shdr, 1858 sizeof(union lpfc_sli4_cfg_shdr)); 1859 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 1860 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1861 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 1862 if (shdr_status || shdr_add_status) { 1863 if (shdr_status == STATUS_FCF_TABLE_EMPTY || 1864 if_type == LPFC_SLI_INTF_IF_TYPE_2) 1865 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1866 "2726 READ_FCF_RECORD Indicates empty " 1867 "FCF table.\n"); 1868 else 1869 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 1870 "2521 READ_FCF_RECORD mailbox failed " 1871 "with status x%x add_status x%x, " 1872 "mbx\n", shdr_status, shdr_add_status); 1873 return NULL; 1874 } 1875 1876 /* Interpreting the returned information of the FCF record */ 1877 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1878 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, 1879 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1880 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); 1881 new_fcf_record = (struct fcf_record *)(virt_addr + 1882 sizeof(struct lpfc_mbx_read_fcf_tbl)); 1883 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, 1884 offsetof(struct fcf_record, vlan_bitmap)); 1885 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); 1886 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); 1887 1888 return new_fcf_record; 1889 } 1890 1891 /** 1892 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record 1893 * @phba: pointer to lpfc hba data structure. 1894 * @fcf_record: pointer to the fcf record. 1895 * @vlan_id: the lowest vlan identifier associated to this fcf record. 1896 * @next_fcf_index: the index to the next fcf record in hba's fcf table. 1897 * 1898 * This routine logs the detailed FCF record if the LOG_FIP loggin is 1899 * enabled. 1900 **/ 1901 static void 1902 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, 1903 struct fcf_record *fcf_record, 1904 uint16_t vlan_id, 1905 uint16_t next_fcf_index) 1906 { 1907 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 1908 "2764 READ_FCF_RECORD:\n" 1909 "\tFCF_Index : x%x\n" 1910 "\tFCF_Avail : x%x\n" 1911 "\tFCF_Valid : x%x\n" 1912 "\tFCF_SOL : x%x\n" 1913 "\tFIP_Priority : x%x\n" 1914 "\tMAC_Provider : x%x\n" 1915 "\tLowest VLANID : x%x\n" 1916 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" 1917 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1918 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" 1919 "\tNext_FCF_Index: x%x\n", 1920 bf_get(lpfc_fcf_record_fcf_index, fcf_record), 1921 bf_get(lpfc_fcf_record_fcf_avail, fcf_record), 1922 bf_get(lpfc_fcf_record_fcf_valid, fcf_record), 1923 bf_get(lpfc_fcf_record_fcf_sol, fcf_record), 1924 fcf_record->fip_priority, 1925 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), 1926 vlan_id, 1927 bf_get(lpfc_fcf_record_mac_0, fcf_record), 1928 bf_get(lpfc_fcf_record_mac_1, fcf_record), 1929 bf_get(lpfc_fcf_record_mac_2, fcf_record), 1930 bf_get(lpfc_fcf_record_mac_3, fcf_record), 1931 bf_get(lpfc_fcf_record_mac_4, fcf_record), 1932 bf_get(lpfc_fcf_record_mac_5, fcf_record), 1933 bf_get(lpfc_fcf_record_fab_name_0, fcf_record), 1934 bf_get(lpfc_fcf_record_fab_name_1, fcf_record), 1935 bf_get(lpfc_fcf_record_fab_name_2, fcf_record), 1936 bf_get(lpfc_fcf_record_fab_name_3, fcf_record), 1937 bf_get(lpfc_fcf_record_fab_name_4, fcf_record), 1938 bf_get(lpfc_fcf_record_fab_name_5, fcf_record), 1939 bf_get(lpfc_fcf_record_fab_name_6, fcf_record), 1940 bf_get(lpfc_fcf_record_fab_name_7, fcf_record), 1941 bf_get(lpfc_fcf_record_switch_name_0, fcf_record), 1942 bf_get(lpfc_fcf_record_switch_name_1, fcf_record), 1943 bf_get(lpfc_fcf_record_switch_name_2, fcf_record), 1944 bf_get(lpfc_fcf_record_switch_name_3, fcf_record), 1945 bf_get(lpfc_fcf_record_switch_name_4, fcf_record), 1946 bf_get(lpfc_fcf_record_switch_name_5, fcf_record), 1947 bf_get(lpfc_fcf_record_switch_name_6, fcf_record), 1948 bf_get(lpfc_fcf_record_switch_name_7, fcf_record), 1949 next_fcf_index); 1950 } 1951 1952 /** 1953 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF 1954 * @phba: pointer to lpfc hba data structure. 1955 * @fcf_rec: pointer to an existing FCF record. 1956 * @new_fcf_record: pointer to a new FCF record. 1957 * @new_vlan_id: vlan id from the new FCF record. 1958 * 1959 * This function performs matching test of a new FCF record against an existing 1960 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id 1961 * will not be used as part of the FCF record matching criteria. 1962 * 1963 * Returns true if all the fields matching, otherwise returns false. 1964 */ 1965 static bool 1966 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, 1967 struct lpfc_fcf_rec *fcf_rec, 1968 struct fcf_record *new_fcf_record, 1969 uint16_t new_vlan_id) 1970 { 1971 if (new_vlan_id != LPFC_FCOE_IGNORE_VID) 1972 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) 1973 return false; 1974 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) 1975 return false; 1976 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) 1977 return false; 1978 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) 1979 return false; 1980 if (fcf_rec->priority != new_fcf_record->fip_priority) 1981 return false; 1982 return true; 1983 } 1984 1985 /** 1986 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf 1987 * @vport: Pointer to vport object. 1988 * @fcf_index: index to next fcf. 1989 * 1990 * This function processing the roundrobin fcf failover to next fcf index. 1991 * When this function is invoked, there will be a current fcf registered 1992 * for flogi. 1993 * Return: 0 for continue retrying flogi on currently registered fcf; 1994 * 1 for stop flogi on currently registered fcf; 1995 */ 1996 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) 1997 { 1998 struct lpfc_hba *phba = vport->phba; 1999 int rc; 2000 2001 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { 2002 spin_lock_irq(&phba->hbalock); 2003 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2004 spin_unlock_irq(&phba->hbalock); 2005 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2006 "2872 Devloss tmo with no eligible " 2007 "FCF, unregister in-use FCF (x%x) " 2008 "and rescan FCF table\n", 2009 phba->fcf.current_rec.fcf_indx); 2010 lpfc_unregister_fcf_rescan(phba); 2011 goto stop_flogi_current_fcf; 2012 } 2013 /* Mark the end to FLOGI roundrobin failover */ 2014 phba->hba_flag &= ~FCF_RR_INPROG; 2015 /* Allow action to new fcf asynchronous event */ 2016 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2017 spin_unlock_irq(&phba->hbalock); 2018 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2019 "2865 No FCF available, stop roundrobin FCF " 2020 "failover and change port state:x%x/x%x\n", 2021 phba->pport->port_state, LPFC_VPORT_UNKNOWN); 2022 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 2023 2024 if (!phba->fcf.fcf_redisc_attempted) { 2025 lpfc_unregister_fcf(phba); 2026 2027 rc = lpfc_sli4_redisc_fcf_table(phba); 2028 if (!rc) { 2029 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2030 "3195 Rediscover FCF table\n"); 2031 phba->fcf.fcf_redisc_attempted = 1; 2032 lpfc_sli4_clear_fcf_rr_bmask(phba); 2033 } else { 2034 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2035 "3196 Rediscover FCF table " 2036 "failed. Status:x%x\n", rc); 2037 } 2038 } else { 2039 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2040 "3197 Already rediscover FCF table " 2041 "attempted. No more retry\n"); 2042 } 2043 goto stop_flogi_current_fcf; 2044 } else { 2045 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, 2046 "2794 Try FLOGI roundrobin FCF failover to " 2047 "(x%x)\n", fcf_index); 2048 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); 2049 if (rc) 2050 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, 2051 "2761 FLOGI roundrobin FCF failover " 2052 "failed (rc:x%x) to read FCF (x%x)\n", 2053 rc, phba->fcf.current_rec.fcf_indx); 2054 else 2055 goto stop_flogi_current_fcf; 2056 } 2057 return 0; 2058 2059 stop_flogi_current_fcf: 2060 lpfc_can_disctmo(vport); 2061 return 1; 2062 } 2063 2064 /** 2065 * lpfc_sli4_fcf_pri_list_del 2066 * @phba: pointer to lpfc hba data structure. 2067 * @fcf_index the index of the fcf record to delete 2068 * This routine checks the on list flag of the fcf_index to be deleted. 2069 * If it is one the list then it is removed from the list, and the flag 2070 * is cleared. This routine grab the hbalock before removing the fcf 2071 * record from the list. 2072 **/ 2073 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, 2074 uint16_t fcf_index) 2075 { 2076 struct lpfc_fcf_pri *new_fcf_pri; 2077 2078 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2079 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2080 "3058 deleting idx x%x pri x%x flg x%x\n", 2081 fcf_index, new_fcf_pri->fcf_rec.priority, 2082 new_fcf_pri->fcf_rec.flag); 2083 spin_lock_irq(&phba->hbalock); 2084 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { 2085 if (phba->fcf.current_rec.priority == 2086 new_fcf_pri->fcf_rec.priority) 2087 phba->fcf.eligible_fcf_cnt--; 2088 list_del_init(&new_fcf_pri->list); 2089 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; 2090 } 2091 spin_unlock_irq(&phba->hbalock); 2092 } 2093 2094 /** 2095 * lpfc_sli4_set_fcf_flogi_fail 2096 * @phba: pointer to lpfc hba data structure. 2097 * @fcf_index the index of the fcf record to update 2098 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED 2099 * flag so the the round robin slection for the particular priority level 2100 * will try a different fcf record that does not have this bit set. 2101 * If the fcf record is re-read for any reason this flag is cleared brfore 2102 * adding it to the priority list. 2103 **/ 2104 void 2105 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) 2106 { 2107 struct lpfc_fcf_pri *new_fcf_pri; 2108 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2109 spin_lock_irq(&phba->hbalock); 2110 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; 2111 spin_unlock_irq(&phba->hbalock); 2112 } 2113 2114 /** 2115 * lpfc_sli4_fcf_pri_list_add 2116 * @phba: pointer to lpfc hba data structure. 2117 * @fcf_index the index of the fcf record to add 2118 * This routine checks the priority of the fcf_index to be added. 2119 * If it is a lower priority than the current head of the fcf_pri list 2120 * then it is added to the list in the right order. 2121 * If it is the same priority as the current head of the list then it 2122 * is added to the head of the list and its bit in the rr_bmask is set. 2123 * If the fcf_index to be added is of a higher priority than the current 2124 * head of the list then the rr_bmask is cleared, its bit is set in the 2125 * rr_bmask and it is added to the head of the list. 2126 * returns: 2127 * 0=success 1=failure 2128 **/ 2129 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, 2130 uint16_t fcf_index, 2131 struct fcf_record *new_fcf_record) 2132 { 2133 uint16_t current_fcf_pri; 2134 uint16_t last_index; 2135 struct lpfc_fcf_pri *fcf_pri; 2136 struct lpfc_fcf_pri *next_fcf_pri; 2137 struct lpfc_fcf_pri *new_fcf_pri; 2138 int ret; 2139 2140 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; 2141 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2142 "3059 adding idx x%x pri x%x flg x%x\n", 2143 fcf_index, new_fcf_record->fip_priority, 2144 new_fcf_pri->fcf_rec.flag); 2145 spin_lock_irq(&phba->hbalock); 2146 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) 2147 list_del_init(&new_fcf_pri->list); 2148 new_fcf_pri->fcf_rec.fcf_index = fcf_index; 2149 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; 2150 if (list_empty(&phba->fcf.fcf_pri_list)) { 2151 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2152 ret = lpfc_sli4_fcf_rr_index_set(phba, 2153 new_fcf_pri->fcf_rec.fcf_index); 2154 goto out; 2155 } 2156 2157 last_index = find_first_bit(phba->fcf.fcf_rr_bmask, 2158 LPFC_SLI4_FCF_TBL_INDX_MAX); 2159 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { 2160 ret = 0; /* Empty rr list */ 2161 goto out; 2162 } 2163 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; 2164 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { 2165 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); 2166 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { 2167 memset(phba->fcf.fcf_rr_bmask, 0, 2168 sizeof(*phba->fcf.fcf_rr_bmask)); 2169 /* fcfs_at_this_priority_level = 1; */ 2170 phba->fcf.eligible_fcf_cnt = 1; 2171 } else 2172 /* fcfs_at_this_priority_level++; */ 2173 phba->fcf.eligible_fcf_cnt++; 2174 ret = lpfc_sli4_fcf_rr_index_set(phba, 2175 new_fcf_pri->fcf_rec.fcf_index); 2176 goto out; 2177 } 2178 2179 list_for_each_entry_safe(fcf_pri, next_fcf_pri, 2180 &phba->fcf.fcf_pri_list, list) { 2181 if (new_fcf_pri->fcf_rec.priority <= 2182 fcf_pri->fcf_rec.priority) { 2183 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) 2184 list_add(&new_fcf_pri->list, 2185 &phba->fcf.fcf_pri_list); 2186 else 2187 list_add(&new_fcf_pri->list, 2188 &((struct lpfc_fcf_pri *) 2189 fcf_pri->list.prev)->list); 2190 ret = 0; 2191 goto out; 2192 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list 2193 || new_fcf_pri->fcf_rec.priority < 2194 next_fcf_pri->fcf_rec.priority) { 2195 list_add(&new_fcf_pri->list, &fcf_pri->list); 2196 ret = 0; 2197 goto out; 2198 } 2199 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) 2200 continue; 2201 2202 } 2203 ret = 1; 2204 out: 2205 /* we use = instead of |= to clear the FLOGI_FAILED flag. */ 2206 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; 2207 spin_unlock_irq(&phba->hbalock); 2208 return ret; 2209 } 2210 2211 /** 2212 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. 2213 * @phba: pointer to lpfc hba data structure. 2214 * @mboxq: pointer to mailbox object. 2215 * 2216 * This function iterates through all the fcf records available in 2217 * HBA and chooses the optimal FCF record for discovery. After finding 2218 * the FCF for discovery it registers the FCF record and kicks start 2219 * discovery. 2220 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to 2221 * use an FCF record which matches fabric name and mac address of the 2222 * currently used FCF record. 2223 * If the driver supports only one FCF, it will try to use the FCF record 2224 * used by BOOT_BIOS. 2225 */ 2226 void 2227 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2228 { 2229 struct fcf_record *new_fcf_record; 2230 uint32_t boot_flag, addr_mode; 2231 uint16_t fcf_index, next_fcf_index; 2232 struct lpfc_fcf_rec *fcf_rec = NULL; 2233 uint16_t vlan_id = LPFC_FCOE_NULL_VID; 2234 bool select_new_fcf; 2235 int rc; 2236 2237 /* If there is pending FCoE event restart FCF table scan */ 2238 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { 2239 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2240 return; 2241 } 2242 2243 /* Parse the FCF record from the non-embedded mailbox command */ 2244 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2245 &next_fcf_index); 2246 if (!new_fcf_record) { 2247 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2248 "2765 Mailbox command READ_FCF_RECORD " 2249 "failed to retrieve a FCF record.\n"); 2250 /* Let next new FCF event trigger fast failover */ 2251 spin_lock_irq(&phba->hbalock); 2252 phba->hba_flag &= ~FCF_TS_INPROG; 2253 spin_unlock_irq(&phba->hbalock); 2254 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2255 return; 2256 } 2257 2258 /* Check the FCF record against the connection list */ 2259 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2260 &addr_mode, &vlan_id); 2261 2262 /* Log the FCF record information if turned on */ 2263 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2264 next_fcf_index); 2265 2266 /* 2267 * If the fcf record does not match with connect list entries 2268 * read the next entry; otherwise, this is an eligible FCF 2269 * record for roundrobin FCF failover. 2270 */ 2271 if (!rc) { 2272 lpfc_sli4_fcf_pri_list_del(phba, 2273 bf_get(lpfc_fcf_record_fcf_index, 2274 new_fcf_record)); 2275 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2276 "2781 FCF (x%x) failed connection " 2277 "list check: (x%x/x%x/%x)\n", 2278 bf_get(lpfc_fcf_record_fcf_index, 2279 new_fcf_record), 2280 bf_get(lpfc_fcf_record_fcf_avail, 2281 new_fcf_record), 2282 bf_get(lpfc_fcf_record_fcf_valid, 2283 new_fcf_record), 2284 bf_get(lpfc_fcf_record_fcf_sol, 2285 new_fcf_record)); 2286 if ((phba->fcf.fcf_flag & FCF_IN_USE) && 2287 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2288 new_fcf_record, LPFC_FCOE_IGNORE_VID)) { 2289 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != 2290 phba->fcf.current_rec.fcf_indx) { 2291 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2292 "2862 FCF (x%x) matches property " 2293 "of in-use FCF (x%x)\n", 2294 bf_get(lpfc_fcf_record_fcf_index, 2295 new_fcf_record), 2296 phba->fcf.current_rec.fcf_indx); 2297 goto read_next_fcf; 2298 } 2299 /* 2300 * In case the current in-use FCF record becomes 2301 * invalid/unavailable during FCF discovery that 2302 * was not triggered by fast FCF failover process, 2303 * treat it as fast FCF failover. 2304 */ 2305 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && 2306 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2307 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2308 "2835 Invalid in-use FCF " 2309 "(x%x), enter FCF failover " 2310 "table scan.\n", 2311 phba->fcf.current_rec.fcf_indx); 2312 spin_lock_irq(&phba->hbalock); 2313 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2314 spin_unlock_irq(&phba->hbalock); 2315 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2316 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2317 LPFC_FCOE_FCF_GET_FIRST); 2318 return; 2319 } 2320 } 2321 goto read_next_fcf; 2322 } else { 2323 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2324 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, 2325 new_fcf_record); 2326 if (rc) 2327 goto read_next_fcf; 2328 } 2329 2330 /* 2331 * If this is not the first FCF discovery of the HBA, use last 2332 * FCF record for the discovery. The condition that a rescan 2333 * matches the in-use FCF record: fabric name, switch name, mac 2334 * address, and vlan_id. 2335 */ 2336 spin_lock_irq(&phba->hbalock); 2337 if (phba->fcf.fcf_flag & FCF_IN_USE) { 2338 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2339 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, 2340 new_fcf_record, vlan_id)) { 2341 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == 2342 phba->fcf.current_rec.fcf_indx) { 2343 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2344 if (phba->fcf.fcf_flag & FCF_REDISC_PEND) 2345 /* Stop FCF redisc wait timer */ 2346 __lpfc_sli4_stop_fcf_redisc_wait_timer( 2347 phba); 2348 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2349 /* Fast failover, mark completed */ 2350 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2351 spin_unlock_irq(&phba->hbalock); 2352 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2353 "2836 New FCF matches in-use " 2354 "FCF (x%x), port_state:x%x, " 2355 "fc_flag:x%x\n", 2356 phba->fcf.current_rec.fcf_indx, 2357 phba->pport->port_state, 2358 phba->pport->fc_flag); 2359 goto out; 2360 } else 2361 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 2362 "2863 New FCF (x%x) matches " 2363 "property of in-use FCF (x%x)\n", 2364 bf_get(lpfc_fcf_record_fcf_index, 2365 new_fcf_record), 2366 phba->fcf.current_rec.fcf_indx); 2367 } 2368 /* 2369 * Read next FCF record from HBA searching for the matching 2370 * with in-use record only if not during the fast failover 2371 * period. In case of fast failover period, it shall try to 2372 * determine whether the FCF record just read should be the 2373 * next candidate. 2374 */ 2375 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 2376 spin_unlock_irq(&phba->hbalock); 2377 goto read_next_fcf; 2378 } 2379 } 2380 /* 2381 * Update on failover FCF record only if it's in FCF fast-failover 2382 * period; otherwise, update on current FCF record. 2383 */ 2384 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) 2385 fcf_rec = &phba->fcf.failover_rec; 2386 else 2387 fcf_rec = &phba->fcf.current_rec; 2388 2389 if (phba->fcf.fcf_flag & FCF_AVAILABLE) { 2390 /* 2391 * If the driver FCF record does not have boot flag 2392 * set and new hba fcf record has boot flag set, use 2393 * the new hba fcf record. 2394 */ 2395 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { 2396 /* Choose this FCF record */ 2397 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2398 "2837 Update current FCF record " 2399 "(x%x) with new FCF record (x%x)\n", 2400 fcf_rec->fcf_indx, 2401 bf_get(lpfc_fcf_record_fcf_index, 2402 new_fcf_record)); 2403 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2404 addr_mode, vlan_id, BOOT_ENABLE); 2405 spin_unlock_irq(&phba->hbalock); 2406 goto read_next_fcf; 2407 } 2408 /* 2409 * If the driver FCF record has boot flag set and the 2410 * new hba FCF record does not have boot flag, read 2411 * the next FCF record. 2412 */ 2413 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { 2414 spin_unlock_irq(&phba->hbalock); 2415 goto read_next_fcf; 2416 } 2417 /* 2418 * If the new hba FCF record has lower priority value 2419 * than the driver FCF record, use the new record. 2420 */ 2421 if (new_fcf_record->fip_priority < fcf_rec->priority) { 2422 /* Choose the new FCF record with lower priority */ 2423 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2424 "2838 Update current FCF record " 2425 "(x%x) with new FCF record (x%x)\n", 2426 fcf_rec->fcf_indx, 2427 bf_get(lpfc_fcf_record_fcf_index, 2428 new_fcf_record)); 2429 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2430 addr_mode, vlan_id, 0); 2431 /* Reset running random FCF selection count */ 2432 phba->fcf.eligible_fcf_cnt = 1; 2433 } else if (new_fcf_record->fip_priority == fcf_rec->priority) { 2434 /* Update running random FCF selection count */ 2435 phba->fcf.eligible_fcf_cnt++; 2436 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, 2437 phba->fcf.eligible_fcf_cnt); 2438 if (select_new_fcf) { 2439 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2440 "2839 Update current FCF record " 2441 "(x%x) with new FCF record (x%x)\n", 2442 fcf_rec->fcf_indx, 2443 bf_get(lpfc_fcf_record_fcf_index, 2444 new_fcf_record)); 2445 /* Choose the new FCF by random selection */ 2446 __lpfc_update_fcf_record(phba, fcf_rec, 2447 new_fcf_record, 2448 addr_mode, vlan_id, 0); 2449 } 2450 } 2451 spin_unlock_irq(&phba->hbalock); 2452 goto read_next_fcf; 2453 } 2454 /* 2455 * This is the first suitable FCF record, choose this record for 2456 * initial best-fit FCF. 2457 */ 2458 if (fcf_rec) { 2459 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2460 "2840 Update initial FCF candidate " 2461 "with FCF (x%x)\n", 2462 bf_get(lpfc_fcf_record_fcf_index, 2463 new_fcf_record)); 2464 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, 2465 addr_mode, vlan_id, (boot_flag ? 2466 BOOT_ENABLE : 0)); 2467 phba->fcf.fcf_flag |= FCF_AVAILABLE; 2468 /* Setup initial running random FCF selection count */ 2469 phba->fcf.eligible_fcf_cnt = 1; 2470 } 2471 spin_unlock_irq(&phba->hbalock); 2472 goto read_next_fcf; 2473 2474 read_next_fcf: 2475 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2476 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { 2477 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { 2478 /* 2479 * Case of FCF fast failover scan 2480 */ 2481 2482 /* 2483 * It has not found any suitable FCF record, cancel 2484 * FCF scan inprogress, and do nothing 2485 */ 2486 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { 2487 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2488 "2782 No suitable FCF found: " 2489 "(x%x/x%x)\n", 2490 phba->fcoe_eventtag_at_fcf_scan, 2491 bf_get(lpfc_fcf_record_fcf_index, 2492 new_fcf_record)); 2493 spin_lock_irq(&phba->hbalock); 2494 if (phba->hba_flag & HBA_DEVLOSS_TMO) { 2495 phba->hba_flag &= ~FCF_TS_INPROG; 2496 spin_unlock_irq(&phba->hbalock); 2497 /* Unregister in-use FCF and rescan */ 2498 lpfc_printf_log(phba, KERN_INFO, 2499 LOG_FIP, 2500 "2864 On devloss tmo " 2501 "unreg in-use FCF and " 2502 "rescan FCF table\n"); 2503 lpfc_unregister_fcf_rescan(phba); 2504 return; 2505 } 2506 /* 2507 * Let next new FCF event trigger fast failover 2508 */ 2509 phba->hba_flag &= ~FCF_TS_INPROG; 2510 spin_unlock_irq(&phba->hbalock); 2511 return; 2512 } 2513 /* 2514 * It has found a suitable FCF record that is not 2515 * the same as in-use FCF record, unregister the 2516 * in-use FCF record, replace the in-use FCF record 2517 * with the new FCF record, mark FCF fast failover 2518 * completed, and then start register the new FCF 2519 * record. 2520 */ 2521 2522 /* Unregister the current in-use FCF record */ 2523 lpfc_unregister_fcf(phba); 2524 2525 /* Replace in-use record with the new record */ 2526 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2527 "2842 Replace in-use FCF (x%x) " 2528 "with failover FCF (x%x)\n", 2529 phba->fcf.current_rec.fcf_indx, 2530 phba->fcf.failover_rec.fcf_indx); 2531 memcpy(&phba->fcf.current_rec, 2532 &phba->fcf.failover_rec, 2533 sizeof(struct lpfc_fcf_rec)); 2534 /* 2535 * Mark the fast FCF failover rediscovery completed 2536 * and the start of the first round of the roundrobin 2537 * FCF failover. 2538 */ 2539 spin_lock_irq(&phba->hbalock); 2540 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; 2541 spin_unlock_irq(&phba->hbalock); 2542 /* Register to the new FCF record */ 2543 lpfc_register_fcf(phba); 2544 } else { 2545 /* 2546 * In case of transaction period to fast FCF failover, 2547 * do nothing when search to the end of the FCF table. 2548 */ 2549 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || 2550 (phba->fcf.fcf_flag & FCF_REDISC_PEND)) 2551 return; 2552 2553 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && 2554 phba->fcf.fcf_flag & FCF_IN_USE) { 2555 /* 2556 * In case the current in-use FCF record no 2557 * longer existed during FCF discovery that 2558 * was not triggered by fast FCF failover 2559 * process, treat it as fast FCF failover. 2560 */ 2561 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2562 "2841 In-use FCF record (x%x) " 2563 "not reported, entering fast " 2564 "FCF failover mode scanning.\n", 2565 phba->fcf.current_rec.fcf_indx); 2566 spin_lock_irq(&phba->hbalock); 2567 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 2568 spin_unlock_irq(&phba->hbalock); 2569 lpfc_sli4_fcf_scan_read_fcf_rec(phba, 2570 LPFC_FCOE_FCF_GET_FIRST); 2571 return; 2572 } 2573 /* Register to the new FCF record */ 2574 lpfc_register_fcf(phba); 2575 } 2576 } else 2577 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); 2578 return; 2579 2580 out: 2581 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2582 lpfc_register_fcf(phba); 2583 2584 return; 2585 } 2586 2587 /** 2588 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler 2589 * @phba: pointer to lpfc hba data structure. 2590 * @mboxq: pointer to mailbox object. 2591 * 2592 * This is the callback function for FLOGI failure roundrobin FCF failover 2593 * read FCF record mailbox command from the eligible FCF record bmask for 2594 * performing the failover. If the FCF read back is not valid/available, it 2595 * fails through to retrying FLOGI to the currently registered FCF again. 2596 * Otherwise, if the FCF read back is valid and available, it will set the 2597 * newly read FCF record to the failover FCF record, unregister currently 2598 * registered FCF record, copy the failover FCF record to the current 2599 * FCF record, and then register the current FCF record before proceeding 2600 * to trying FLOGI on the new failover FCF. 2601 */ 2602 void 2603 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2604 { 2605 struct fcf_record *new_fcf_record; 2606 uint32_t boot_flag, addr_mode; 2607 uint16_t next_fcf_index, fcf_index; 2608 uint16_t current_fcf_index; 2609 uint16_t vlan_id; 2610 int rc; 2611 2612 /* If link state is not up, stop the roundrobin failover process */ 2613 if (phba->link_state < LPFC_LINK_UP) { 2614 spin_lock_irq(&phba->hbalock); 2615 phba->fcf.fcf_flag &= ~FCF_DISCOVERY; 2616 phba->hba_flag &= ~FCF_RR_INPROG; 2617 spin_unlock_irq(&phba->hbalock); 2618 goto out; 2619 } 2620 2621 /* Parse the FCF record from the non-embedded mailbox command */ 2622 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2623 &next_fcf_index); 2624 if (!new_fcf_record) { 2625 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, 2626 "2766 Mailbox command READ_FCF_RECORD " 2627 "failed to retrieve a FCF record. " 2628 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, 2629 phba->fcf.fcf_flag); 2630 lpfc_unregister_fcf_rescan(phba); 2631 goto out; 2632 } 2633 2634 /* Get the needed parameters from FCF record */ 2635 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2636 &addr_mode, &vlan_id); 2637 2638 /* Log the FCF record information if turned on */ 2639 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2640 next_fcf_index); 2641 2642 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2643 if (!rc) { 2644 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2645 "2848 Remove ineligible FCF (x%x) from " 2646 "from roundrobin bmask\n", fcf_index); 2647 /* Clear roundrobin bmask bit for ineligible FCF */ 2648 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); 2649 /* Perform next round of roundrobin FCF failover */ 2650 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); 2651 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); 2652 if (rc) 2653 goto out; 2654 goto error_out; 2655 } 2656 2657 if (fcf_index == phba->fcf.current_rec.fcf_indx) { 2658 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2659 "2760 Perform FLOGI roundrobin FCF failover: " 2660 "FCF (x%x) back to FCF (x%x)\n", 2661 phba->fcf.current_rec.fcf_indx, fcf_index); 2662 /* Wait 500 ms before retrying FLOGI to current FCF */ 2663 msleep(500); 2664 lpfc_issue_init_vfi(phba->pport); 2665 goto out; 2666 } 2667 2668 /* Upload new FCF record to the failover FCF record */ 2669 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2670 "2834 Update current FCF (x%x) with new FCF (x%x)\n", 2671 phba->fcf.failover_rec.fcf_indx, fcf_index); 2672 spin_lock_irq(&phba->hbalock); 2673 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, 2674 new_fcf_record, addr_mode, vlan_id, 2675 (boot_flag ? BOOT_ENABLE : 0)); 2676 spin_unlock_irq(&phba->hbalock); 2677 2678 current_fcf_index = phba->fcf.current_rec.fcf_indx; 2679 2680 /* Unregister the current in-use FCF record */ 2681 lpfc_unregister_fcf(phba); 2682 2683 /* Replace in-use record with the new record */ 2684 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, 2685 sizeof(struct lpfc_fcf_rec)); 2686 2687 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2688 "2783 Perform FLOGI roundrobin FCF failover: FCF " 2689 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); 2690 2691 error_out: 2692 lpfc_register_fcf(phba); 2693 out: 2694 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2695 } 2696 2697 /** 2698 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. 2699 * @phba: pointer to lpfc hba data structure. 2700 * @mboxq: pointer to mailbox object. 2701 * 2702 * This is the callback function of read FCF record mailbox command for 2703 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF 2704 * failover when a new FCF event happened. If the FCF read back is 2705 * valid/available and it passes the connection list check, it updates 2706 * the bmask for the eligible FCF record for roundrobin failover. 2707 */ 2708 void 2709 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2710 { 2711 struct fcf_record *new_fcf_record; 2712 uint32_t boot_flag, addr_mode; 2713 uint16_t fcf_index, next_fcf_index; 2714 uint16_t vlan_id; 2715 int rc; 2716 2717 /* If link state is not up, no need to proceed */ 2718 if (phba->link_state < LPFC_LINK_UP) 2719 goto out; 2720 2721 /* If FCF discovery period is over, no need to proceed */ 2722 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) 2723 goto out; 2724 2725 /* Parse the FCF record from the non-embedded mailbox command */ 2726 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, 2727 &next_fcf_index); 2728 if (!new_fcf_record) { 2729 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2730 "2767 Mailbox command READ_FCF_RECORD " 2731 "failed to retrieve a FCF record.\n"); 2732 goto out; 2733 } 2734 2735 /* Check the connection list for eligibility */ 2736 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, 2737 &addr_mode, &vlan_id); 2738 2739 /* Log the FCF record information if turned on */ 2740 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, 2741 next_fcf_index); 2742 2743 if (!rc) 2744 goto out; 2745 2746 /* Update the eligible FCF record index bmask */ 2747 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); 2748 2749 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); 2750 2751 out: 2752 lpfc_sli4_mbox_cmd_free(phba, mboxq); 2753 } 2754 2755 /** 2756 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. 2757 * @phba: pointer to lpfc hba data structure. 2758 * @mboxq: pointer to mailbox data structure. 2759 * 2760 * This function handles completion of init vfi mailbox command. 2761 */ 2762 static void 2763 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2764 { 2765 struct lpfc_vport *vport = mboxq->vport; 2766 2767 /* 2768 * VFI not supported on interface type 0, just do the flogi 2769 * Also continue if the VFI is in use - just use the same one. 2770 */ 2771 if (mboxq->u.mb.mbxStatus && 2772 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2773 LPFC_SLI_INTF_IF_TYPE_0) && 2774 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2775 lpfc_printf_vlog(vport, KERN_ERR, 2776 LOG_MBOX, 2777 "2891 Init VFI mailbox failed 0x%x\n", 2778 mboxq->u.mb.mbxStatus); 2779 mempool_free(mboxq, phba->mbox_mem_pool); 2780 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2781 return; 2782 } 2783 2784 lpfc_initial_flogi(vport); 2785 mempool_free(mboxq, phba->mbox_mem_pool); 2786 return; 2787 } 2788 2789 /** 2790 * lpfc_issue_init_vfi - Issue init_vfi mailbox command. 2791 * @vport: pointer to lpfc_vport data structure. 2792 * 2793 * This function issue a init_vfi mailbox command to initialize the VFI and 2794 * VPI for the physical port. 2795 */ 2796 void 2797 lpfc_issue_init_vfi(struct lpfc_vport *vport) 2798 { 2799 LPFC_MBOXQ_t *mboxq; 2800 int rc; 2801 struct lpfc_hba *phba = vport->phba; 2802 2803 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2804 if (!mboxq) { 2805 lpfc_printf_vlog(vport, KERN_ERR, 2806 LOG_MBOX, "2892 Failed to allocate " 2807 "init_vfi mailbox\n"); 2808 return; 2809 } 2810 lpfc_init_vfi(mboxq, vport); 2811 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; 2812 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); 2813 if (rc == MBX_NOT_FINISHED) { 2814 lpfc_printf_vlog(vport, KERN_ERR, 2815 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); 2816 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2817 } 2818 } 2819 2820 /** 2821 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. 2822 * @phba: pointer to lpfc hba data structure. 2823 * @mboxq: pointer to mailbox data structure. 2824 * 2825 * This function handles completion of init vpi mailbox command. 2826 */ 2827 void 2828 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2829 { 2830 struct lpfc_vport *vport = mboxq->vport; 2831 struct lpfc_nodelist *ndlp; 2832 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2833 2834 if (mboxq->u.mb.mbxStatus) { 2835 lpfc_printf_vlog(vport, KERN_ERR, 2836 LOG_MBOX, 2837 "2609 Init VPI mailbox failed 0x%x\n", 2838 mboxq->u.mb.mbxStatus); 2839 mempool_free(mboxq, phba->mbox_mem_pool); 2840 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2841 return; 2842 } 2843 spin_lock_irq(shost->host_lock); 2844 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 2845 spin_unlock_irq(shost->host_lock); 2846 2847 /* If this port is physical port or FDISC is done, do reg_vpi */ 2848 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { 2849 ndlp = lpfc_findnode_did(vport, Fabric_DID); 2850 if (!ndlp) 2851 lpfc_printf_vlog(vport, KERN_ERR, 2852 LOG_DISCOVERY, 2853 "2731 Cannot find fabric " 2854 "controller node\n"); 2855 else 2856 lpfc_register_new_vport(phba, vport, ndlp); 2857 mempool_free(mboxq, phba->mbox_mem_pool); 2858 return; 2859 } 2860 2861 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2862 lpfc_initial_fdisc(vport); 2863 else { 2864 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); 2865 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2866 "2606 No NPIV Fabric support\n"); 2867 } 2868 mempool_free(mboxq, phba->mbox_mem_pool); 2869 return; 2870 } 2871 2872 /** 2873 * lpfc_issue_init_vpi - Issue init_vpi mailbox command. 2874 * @vport: pointer to lpfc_vport data structure. 2875 * 2876 * This function issue a init_vpi mailbox command to initialize 2877 * VPI for the vport. 2878 */ 2879 void 2880 lpfc_issue_init_vpi(struct lpfc_vport *vport) 2881 { 2882 LPFC_MBOXQ_t *mboxq; 2883 int rc, vpi; 2884 2885 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { 2886 vpi = lpfc_alloc_vpi(vport->phba); 2887 if (!vpi) { 2888 lpfc_printf_vlog(vport, KERN_ERR, 2889 LOG_MBOX, 2890 "3303 Failed to obtain vport vpi\n"); 2891 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2892 return; 2893 } 2894 vport->vpi = vpi; 2895 } 2896 2897 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); 2898 if (!mboxq) { 2899 lpfc_printf_vlog(vport, KERN_ERR, 2900 LOG_MBOX, "2607 Failed to allocate " 2901 "init_vpi mailbox\n"); 2902 return; 2903 } 2904 lpfc_init_vpi(vport->phba, mboxq, vport->vpi); 2905 mboxq->vport = vport; 2906 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; 2907 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); 2908 if (rc == MBX_NOT_FINISHED) { 2909 lpfc_printf_vlog(vport, KERN_ERR, 2910 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); 2911 mempool_free(mboxq, vport->phba->mbox_mem_pool); 2912 } 2913 } 2914 2915 /** 2916 * lpfc_start_fdiscs - send fdiscs for each vports on this port. 2917 * @phba: pointer to lpfc hba data structure. 2918 * 2919 * This function loops through the list of vports on the @phba and issues an 2920 * FDISC if possible. 2921 */ 2922 void 2923 lpfc_start_fdiscs(struct lpfc_hba *phba) 2924 { 2925 struct lpfc_vport **vports; 2926 int i; 2927 2928 vports = lpfc_create_vport_work_array(phba); 2929 if (vports != NULL) { 2930 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2931 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 2932 continue; 2933 /* There are no vpi for this vport */ 2934 if (vports[i]->vpi > phba->max_vpi) { 2935 lpfc_vport_set_state(vports[i], 2936 FC_VPORT_FAILED); 2937 continue; 2938 } 2939 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2940 lpfc_vport_set_state(vports[i], 2941 FC_VPORT_LINKDOWN); 2942 continue; 2943 } 2944 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { 2945 lpfc_issue_init_vpi(vports[i]); 2946 continue; 2947 } 2948 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) 2949 lpfc_initial_fdisc(vports[i]); 2950 else { 2951 lpfc_vport_set_state(vports[i], 2952 FC_VPORT_NO_FABRIC_SUPP); 2953 lpfc_printf_vlog(vports[i], KERN_ERR, 2954 LOG_ELS, 2955 "0259 No NPIV " 2956 "Fabric support\n"); 2957 } 2958 } 2959 } 2960 lpfc_destroy_vport_work_array(phba, vports); 2961 } 2962 2963 void 2964 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 2965 { 2966 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; 2967 struct lpfc_vport *vport = mboxq->vport; 2968 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2969 2970 /* 2971 * VFI not supported for interface type 0, so ignore any mailbox 2972 * error (except VFI in use) and continue with the discovery. 2973 */ 2974 if (mboxq->u.mb.mbxStatus && 2975 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 2976 LPFC_SLI_INTF_IF_TYPE_0) && 2977 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { 2978 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 2979 "2018 REG_VFI mbxStatus error x%x " 2980 "HBA state x%x\n", 2981 mboxq->u.mb.mbxStatus, vport->port_state); 2982 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2983 /* FLOGI failed, use loop map to make discovery list */ 2984 lpfc_disc_list_loopmap(vport); 2985 /* Start discovery */ 2986 lpfc_disc_start(vport); 2987 goto out_free_mem; 2988 } 2989 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 2990 goto out_free_mem; 2991 } 2992 2993 /* If the VFI is already registered, there is nothing else to do 2994 * Unless this was a VFI update and we are in PT2PT mode, then 2995 * we should drop through to set the port state to ready. 2996 */ 2997 if (vport->fc_flag & FC_VFI_REGISTERED) 2998 if (!(phba->sli_rev == LPFC_SLI_REV4 && 2999 vport->fc_flag & FC_PT2PT)) 3000 goto out_free_mem; 3001 3002 /* The VPI is implicitly registered when the VFI is registered */ 3003 spin_lock_irq(shost->host_lock); 3004 vport->vpi_state |= LPFC_VPI_REGISTERED; 3005 vport->fc_flag |= FC_VFI_REGISTERED; 3006 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3007 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; 3008 spin_unlock_irq(shost->host_lock); 3009 3010 /* In case SLI4 FC loopback test, we are ready */ 3011 if ((phba->sli_rev == LPFC_SLI_REV4) && 3012 (phba->link_flag & LS_LOOPBACK_MODE)) { 3013 phba->link_state = LPFC_HBA_READY; 3014 goto out_free_mem; 3015 } 3016 3017 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3018 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " 3019 "alpacnt:%d LinkState:%x topology:%x\n", 3020 vport->port_state, vport->fc_flag, vport->fc_myDID, 3021 vport->phba->alpa_map[0], 3022 phba->link_state, phba->fc_topology); 3023 3024 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3025 /* 3026 * For private loop or for NPort pt2pt, 3027 * just start discovery and we are done. 3028 */ 3029 if ((vport->fc_flag & FC_PT2PT) || 3030 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 3031 !(vport->fc_flag & FC_PUBLIC_LOOP))) { 3032 3033 /* Use loop map to make discovery list */ 3034 lpfc_disc_list_loopmap(vport); 3035 /* Start discovery */ 3036 if (vport->fc_flag & FC_PT2PT) 3037 vport->port_state = LPFC_VPORT_READY; 3038 else 3039 lpfc_disc_start(vport); 3040 } else { 3041 lpfc_start_fdiscs(phba); 3042 lpfc_do_scr_ns_plogi(phba, vport); 3043 } 3044 } 3045 3046 out_free_mem: 3047 mempool_free(mboxq, phba->mbox_mem_pool); 3048 if (dmabuf) { 3049 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); 3050 kfree(dmabuf); 3051 } 3052 return; 3053 } 3054 3055 static void 3056 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3057 { 3058 MAILBOX_t *mb = &pmb->u.mb; 3059 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3060 struct lpfc_vport *vport = pmb->vport; 3061 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3062 struct serv_parm *sp = &vport->fc_sparam; 3063 uint32_t ed_tov; 3064 3065 /* Check for error */ 3066 if (mb->mbxStatus) { 3067 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ 3068 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3069 "0319 READ_SPARAM mbxStatus error x%x " 3070 "hba state x%x>\n", 3071 mb->mbxStatus, vport->port_state); 3072 lpfc_linkdown(phba); 3073 goto out; 3074 } 3075 3076 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, 3077 sizeof (struct serv_parm)); 3078 3079 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 3080 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ 3081 ed_tov = (ed_tov + 999999) / 1000000; 3082 3083 phba->fc_edtov = ed_tov; 3084 phba->fc_ratov = (2 * ed_tov) / 1000; 3085 if (phba->fc_ratov < FF_DEF_RATOV) { 3086 /* RA_TOV should be atleast 10sec for initial flogi */ 3087 phba->fc_ratov = FF_DEF_RATOV; 3088 } 3089 3090 lpfc_update_vport_wwn(vport); 3091 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3092 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3093 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); 3094 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); 3095 } 3096 3097 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3098 kfree(mp); 3099 mempool_free(pmb, phba->mbox_mem_pool); 3100 return; 3101 3102 out: 3103 pmb->ctx_buf = NULL; 3104 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3105 kfree(mp); 3106 lpfc_issue_clear_la(phba, vport); 3107 mempool_free(pmb, phba->mbox_mem_pool); 3108 return; 3109 } 3110 3111 static void 3112 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) 3113 { 3114 struct lpfc_vport *vport = phba->pport; 3115 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; 3116 struct Scsi_Host *shost; 3117 int i; 3118 struct lpfc_dmabuf *mp; 3119 int rc; 3120 struct fcf_record *fcf_record; 3121 uint32_t fc_flags = 0; 3122 3123 spin_lock_irq(&phba->hbalock); 3124 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); 3125 3126 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3127 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { 3128 case LPFC_LINK_SPEED_1GHZ: 3129 case LPFC_LINK_SPEED_2GHZ: 3130 case LPFC_LINK_SPEED_4GHZ: 3131 case LPFC_LINK_SPEED_8GHZ: 3132 case LPFC_LINK_SPEED_10GHZ: 3133 case LPFC_LINK_SPEED_16GHZ: 3134 case LPFC_LINK_SPEED_32GHZ: 3135 case LPFC_LINK_SPEED_64GHZ: 3136 case LPFC_LINK_SPEED_128GHZ: 3137 break; 3138 default: 3139 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; 3140 break; 3141 } 3142 } 3143 3144 if (phba->fc_topology && 3145 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { 3146 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 3147 "3314 Toplogy changed was 0x%x is 0x%x\n", 3148 phba->fc_topology, 3149 bf_get(lpfc_mbx_read_top_topology, la)); 3150 phba->fc_topology_changed = 1; 3151 } 3152 3153 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); 3154 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; 3155 3156 shost = lpfc_shost_from_vport(vport); 3157 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3158 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; 3159 3160 /* if npiv is enabled and this adapter supports npiv log 3161 * a message that npiv is not supported in this topology 3162 */ 3163 if (phba->cfg_enable_npiv && phba->max_vpi) 3164 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3165 "1309 Link Up Event npiv not supported in loop " 3166 "topology\n"); 3167 /* Get Loop Map information */ 3168 if (bf_get(lpfc_mbx_read_top_il, la)) 3169 fc_flags |= FC_LBIT; 3170 3171 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); 3172 i = la->lilpBde64.tus.f.bdeSize; 3173 3174 if (i == 0) { 3175 phba->alpa_map[0] = 0; 3176 } else { 3177 if (vport->cfg_log_verbose & LOG_LINK_EVENT) { 3178 int numalpa, j, k; 3179 union { 3180 uint8_t pamap[16]; 3181 struct { 3182 uint32_t wd1; 3183 uint32_t wd2; 3184 uint32_t wd3; 3185 uint32_t wd4; 3186 } pa; 3187 } un; 3188 numalpa = phba->alpa_map[0]; 3189 j = 0; 3190 while (j < numalpa) { 3191 memset(un.pamap, 0, 16); 3192 for (k = 1; j < numalpa; k++) { 3193 un.pamap[k - 1] = 3194 phba->alpa_map[j + 1]; 3195 j++; 3196 if (k == 16) 3197 break; 3198 } 3199 /* Link Up Event ALPA map */ 3200 lpfc_printf_log(phba, 3201 KERN_WARNING, 3202 LOG_LINK_EVENT, 3203 "1304 Link Up Event " 3204 "ALPA map Data: x%x " 3205 "x%x x%x x%x\n", 3206 un.pa.wd1, un.pa.wd2, 3207 un.pa.wd3, un.pa.wd4); 3208 } 3209 } 3210 } 3211 } else { 3212 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { 3213 if (phba->max_vpi && phba->cfg_enable_npiv && 3214 (phba->sli_rev >= LPFC_SLI_REV3)) 3215 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; 3216 } 3217 vport->fc_myDID = phba->fc_pref_DID; 3218 fc_flags |= FC_LBIT; 3219 } 3220 spin_unlock_irq(&phba->hbalock); 3221 3222 if (fc_flags) { 3223 spin_lock_irq(shost->host_lock); 3224 vport->fc_flag |= fc_flags; 3225 spin_unlock_irq(shost->host_lock); 3226 } 3227 3228 lpfc_linkup(phba); 3229 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3230 if (!sparam_mbox) 3231 goto out; 3232 3233 rc = lpfc_read_sparam(phba, sparam_mbox, 0); 3234 if (rc) { 3235 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3236 goto out; 3237 } 3238 sparam_mbox->vport = vport; 3239 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; 3240 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); 3241 if (rc == MBX_NOT_FINISHED) { 3242 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; 3243 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3244 kfree(mp); 3245 mempool_free(sparam_mbox, phba->mbox_mem_pool); 3246 goto out; 3247 } 3248 3249 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3250 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3251 if (!cfglink_mbox) 3252 goto out; 3253 vport->port_state = LPFC_LOCAL_CFG_LINK; 3254 lpfc_config_link(phba, cfglink_mbox); 3255 cfglink_mbox->vport = vport; 3256 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; 3257 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); 3258 if (rc == MBX_NOT_FINISHED) { 3259 mempool_free(cfglink_mbox, phba->mbox_mem_pool); 3260 goto out; 3261 } 3262 } else { 3263 vport->port_state = LPFC_VPORT_UNKNOWN; 3264 /* 3265 * Add the driver's default FCF record at FCF index 0 now. This 3266 * is phase 1 implementation that support FCF index 0 and driver 3267 * defaults. 3268 */ 3269 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { 3270 fcf_record = kzalloc(sizeof(struct fcf_record), 3271 GFP_KERNEL); 3272 if (unlikely(!fcf_record)) { 3273 lpfc_printf_log(phba, KERN_ERR, 3274 LOG_MBOX | LOG_SLI, 3275 "2554 Could not allocate memory for " 3276 "fcf record\n"); 3277 rc = -ENODEV; 3278 goto out; 3279 } 3280 3281 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, 3282 LPFC_FCOE_FCF_DEF_INDEX); 3283 rc = lpfc_sli4_add_fcf_record(phba, fcf_record); 3284 if (unlikely(rc)) { 3285 lpfc_printf_log(phba, KERN_ERR, 3286 LOG_MBOX | LOG_SLI, 3287 "2013 Could not manually add FCF " 3288 "record 0, status %d\n", rc); 3289 rc = -ENODEV; 3290 kfree(fcf_record); 3291 goto out; 3292 } 3293 kfree(fcf_record); 3294 } 3295 /* 3296 * The driver is expected to do FIP/FCF. Call the port 3297 * and get the FCF Table. 3298 */ 3299 spin_lock_irq(&phba->hbalock); 3300 if (phba->hba_flag & FCF_TS_INPROG) { 3301 spin_unlock_irq(&phba->hbalock); 3302 return; 3303 } 3304 /* This is the initial FCF discovery scan */ 3305 phba->fcf.fcf_flag |= FCF_INIT_DISC; 3306 spin_unlock_irq(&phba->hbalock); 3307 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3308 "2778 Start FCF table scan at linkup\n"); 3309 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3310 LPFC_FCOE_FCF_GET_FIRST); 3311 if (rc) { 3312 spin_lock_irq(&phba->hbalock); 3313 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 3314 spin_unlock_irq(&phba->hbalock); 3315 goto out; 3316 } 3317 /* Reset FCF roundrobin bmask for new discovery */ 3318 lpfc_sli4_clear_fcf_rr_bmask(phba); 3319 } 3320 3321 return; 3322 out: 3323 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3324 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3325 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n", 3326 vport->port_state, sparam_mbox, cfglink_mbox); 3327 lpfc_issue_clear_la(phba, vport); 3328 return; 3329 } 3330 3331 static void 3332 lpfc_enable_la(struct lpfc_hba *phba) 3333 { 3334 uint32_t control; 3335 struct lpfc_sli *psli = &phba->sli; 3336 spin_lock_irq(&phba->hbalock); 3337 psli->sli_flag |= LPFC_PROCESS_LA; 3338 if (phba->sli_rev <= LPFC_SLI_REV3) { 3339 control = readl(phba->HCregaddr); 3340 control |= HC_LAINT_ENA; 3341 writel(control, phba->HCregaddr); 3342 readl(phba->HCregaddr); /* flush */ 3343 } 3344 spin_unlock_irq(&phba->hbalock); 3345 } 3346 3347 static void 3348 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 3349 { 3350 lpfc_linkdown(phba); 3351 lpfc_enable_la(phba); 3352 lpfc_unregister_unused_fcf(phba); 3353 /* turn on Link Attention interrupts - no CLEAR_LA needed */ 3354 } 3355 3356 3357 /* 3358 * This routine handles processing a READ_TOPOLOGY mailbox 3359 * command upon completion. It is setup in the LPFC_MBOXQ 3360 * as the completion routine when the command is 3361 * handed off to the SLI layer. SLI4 only. 3362 */ 3363 void 3364 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3365 { 3366 struct lpfc_vport *vport = pmb->vport; 3367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3368 struct lpfc_mbx_read_top *la; 3369 struct lpfc_sli_ring *pring; 3370 MAILBOX_t *mb = &pmb->u.mb; 3371 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3372 uint8_t attn_type; 3373 3374 /* Unblock ELS traffic */ 3375 pring = lpfc_phba_elsring(phba); 3376 if (pring) 3377 pring->flag &= ~LPFC_STOP_IOCB_EVENT; 3378 3379 /* Check for error */ 3380 if (mb->mbxStatus) { 3381 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3382 "1307 READ_LA mbox error x%x state x%x\n", 3383 mb->mbxStatus, vport->port_state); 3384 lpfc_mbx_issue_link_down(phba); 3385 phba->link_state = LPFC_HBA_ERROR; 3386 goto lpfc_mbx_cmpl_read_topology_free_mbuf; 3387 } 3388 3389 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3390 attn_type = bf_get(lpfc_mbx_read_top_att_type, la); 3391 3392 memcpy(&phba->alpa_map[0], mp->virt, 128); 3393 3394 spin_lock_irq(shost->host_lock); 3395 if (bf_get(lpfc_mbx_read_top_pb, la)) 3396 vport->fc_flag |= FC_BYPASSED_MODE; 3397 else 3398 vport->fc_flag &= ~FC_BYPASSED_MODE; 3399 spin_unlock_irq(shost->host_lock); 3400 3401 if (phba->fc_eventTag <= la->eventTag) { 3402 phba->fc_stat.LinkMultiEvent++; 3403 if (attn_type == LPFC_ATT_LINK_UP) 3404 if (phba->fc_eventTag != 0) 3405 lpfc_linkdown(phba); 3406 } 3407 3408 phba->fc_eventTag = la->eventTag; 3409 if (phba->sli_rev < LPFC_SLI_REV4) { 3410 spin_lock_irq(&phba->hbalock); 3411 if (bf_get(lpfc_mbx_read_top_mm, la)) 3412 phba->sli.sli_flag |= LPFC_MENLO_MAINT; 3413 else 3414 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; 3415 spin_unlock_irq(&phba->hbalock); 3416 } 3417 3418 phba->link_events++; 3419 if ((attn_type == LPFC_ATT_LINK_UP) && 3420 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { 3421 phba->fc_stat.LinkUp++; 3422 if (phba->link_flag & LS_LOOPBACK_MODE) { 3423 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3424 "1306 Link Up Event in loop back mode " 3425 "x%x received Data: x%x x%x x%x x%x\n", 3426 la->eventTag, phba->fc_eventTag, 3427 bf_get(lpfc_mbx_read_top_alpa_granted, 3428 la), 3429 bf_get(lpfc_mbx_read_top_link_spd, la), 3430 phba->alpa_map[0]); 3431 } else { 3432 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3433 "1303 Link Up Event x%x received " 3434 "Data: x%x x%x x%x x%x x%x x%x %d\n", 3435 la->eventTag, phba->fc_eventTag, 3436 bf_get(lpfc_mbx_read_top_alpa_granted, 3437 la), 3438 bf_get(lpfc_mbx_read_top_link_spd, la), 3439 phba->alpa_map[0], 3440 bf_get(lpfc_mbx_read_top_mm, la), 3441 bf_get(lpfc_mbx_read_top_fa, la), 3442 phba->wait_4_mlo_maint_flg); 3443 } 3444 lpfc_mbx_process_link_up(phba, la); 3445 } else if (attn_type == LPFC_ATT_LINK_DOWN || 3446 attn_type == LPFC_ATT_UNEXP_WWPN) { 3447 phba->fc_stat.LinkDown++; 3448 if (phba->link_flag & LS_LOOPBACK_MODE) 3449 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3450 "1308 Link Down Event in loop back mode " 3451 "x%x received " 3452 "Data: x%x x%x x%x\n", 3453 la->eventTag, phba->fc_eventTag, 3454 phba->pport->port_state, vport->fc_flag); 3455 else if (attn_type == LPFC_ATT_UNEXP_WWPN) 3456 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3457 "1313 Link Down UNEXP WWPN Event x%x received " 3458 "Data: x%x x%x x%x x%x x%x\n", 3459 la->eventTag, phba->fc_eventTag, 3460 phba->pport->port_state, vport->fc_flag, 3461 bf_get(lpfc_mbx_read_top_mm, la), 3462 bf_get(lpfc_mbx_read_top_fa, la)); 3463 else 3464 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3465 "1305 Link Down Event x%x received " 3466 "Data: x%x x%x x%x x%x x%x\n", 3467 la->eventTag, phba->fc_eventTag, 3468 phba->pport->port_state, vport->fc_flag, 3469 bf_get(lpfc_mbx_read_top_mm, la), 3470 bf_get(lpfc_mbx_read_top_fa, la)); 3471 lpfc_mbx_issue_link_down(phba); 3472 } 3473 if (phba->sli.sli_flag & LPFC_MENLO_MAINT && 3474 attn_type == LPFC_ATT_LINK_UP) { 3475 if (phba->link_state != LPFC_LINK_DOWN) { 3476 phba->fc_stat.LinkDown++; 3477 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3478 "1312 Link Down Event x%x received " 3479 "Data: x%x x%x x%x\n", 3480 la->eventTag, phba->fc_eventTag, 3481 phba->pport->port_state, vport->fc_flag); 3482 lpfc_mbx_issue_link_down(phba); 3483 } else 3484 lpfc_enable_la(phba); 3485 3486 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 3487 "1310 Menlo Maint Mode Link up Event x%x rcvd " 3488 "Data: x%x x%x x%x\n", 3489 la->eventTag, phba->fc_eventTag, 3490 phba->pport->port_state, vport->fc_flag); 3491 /* 3492 * The cmnd that triggered this will be waiting for this 3493 * signal. 3494 */ 3495 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ 3496 if (phba->wait_4_mlo_maint_flg) { 3497 phba->wait_4_mlo_maint_flg = 0; 3498 wake_up_interruptible(&phba->wait_4_mlo_m_q); 3499 } 3500 } 3501 3502 if ((phba->sli_rev < LPFC_SLI_REV4) && 3503 bf_get(lpfc_mbx_read_top_fa, la)) { 3504 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 3505 lpfc_issue_clear_la(phba, vport); 3506 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 3507 "1311 fa %d\n", 3508 bf_get(lpfc_mbx_read_top_fa, la)); 3509 } 3510 3511 lpfc_mbx_cmpl_read_topology_free_mbuf: 3512 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3513 kfree(mp); 3514 mempool_free(pmb, phba->mbox_mem_pool); 3515 return; 3516 } 3517 3518 /* 3519 * This routine handles processing a REG_LOGIN mailbox 3520 * command upon completion. It is setup in the LPFC_MBOXQ 3521 * as the completion routine when the command is 3522 * handed off to the SLI layer. 3523 */ 3524 void 3525 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3526 { 3527 struct lpfc_vport *vport = pmb->vport; 3528 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3529 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3530 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3531 3532 pmb->ctx_buf = NULL; 3533 pmb->ctx_ndlp = NULL; 3534 3535 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 3536 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n", 3537 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 3538 kref_read(&ndlp->kref), 3539 ndlp->nlp_usg_map, ndlp); 3540 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 3541 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 3542 3543 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || 3544 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { 3545 /* We rcvd a rscn after issuing this 3546 * mbox reg login, we may have cycled 3547 * back through the state and be 3548 * back at reg login state so this 3549 * mbox needs to be ignored becase 3550 * there is another reg login in 3551 * process. 3552 */ 3553 spin_lock_irq(shost->host_lock); 3554 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; 3555 spin_unlock_irq(shost->host_lock); 3556 3557 /* 3558 * We cannot leave the RPI registered because 3559 * if we go thru discovery again for this ndlp 3560 * a subsequent REG_RPI will fail. 3561 */ 3562 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3563 lpfc_unreg_rpi(vport, ndlp); 3564 } 3565 3566 /* Call state machine */ 3567 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); 3568 3569 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3570 kfree(mp); 3571 mempool_free(pmb, phba->mbox_mem_pool); 3572 /* decrement the node reference count held for this callback 3573 * function. 3574 */ 3575 lpfc_nlp_put(ndlp); 3576 3577 return; 3578 } 3579 3580 static void 3581 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3582 { 3583 MAILBOX_t *mb = &pmb->u.mb; 3584 struct lpfc_vport *vport = pmb->vport; 3585 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3586 3587 switch (mb->mbxStatus) { 3588 case 0x0011: 3589 case 0x0020: 3590 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3591 "0911 cmpl_unreg_vpi, mb status = 0x%x\n", 3592 mb->mbxStatus); 3593 break; 3594 /* If VPI is busy, reset the HBA */ 3595 case 0x9700: 3596 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 3597 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", 3598 vport->vpi, mb->mbxStatus); 3599 if (!(phba->pport->load_flag & FC_UNLOADING)) 3600 lpfc_workq_post_event(phba, NULL, NULL, 3601 LPFC_EVT_RESET_HBA); 3602 } 3603 spin_lock_irq(shost->host_lock); 3604 vport->vpi_state &= ~LPFC_VPI_REGISTERED; 3605 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3606 spin_unlock_irq(shost->host_lock); 3607 vport->unreg_vpi_cmpl = VPORT_OK; 3608 mempool_free(pmb, phba->mbox_mem_pool); 3609 lpfc_cleanup_vports_rrqs(vport, NULL); 3610 /* 3611 * This shost reference might have been taken at the beginning of 3612 * lpfc_vport_delete() 3613 */ 3614 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) 3615 scsi_host_put(shost); 3616 } 3617 3618 int 3619 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 3620 { 3621 struct lpfc_hba *phba = vport->phba; 3622 LPFC_MBOXQ_t *mbox; 3623 int rc; 3624 3625 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3626 if (!mbox) 3627 return 1; 3628 3629 lpfc_unreg_vpi(phba, vport->vpi, mbox); 3630 mbox->vport = vport; 3631 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; 3632 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 3633 if (rc == MBX_NOT_FINISHED) { 3634 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 3635 "1800 Could not issue unreg_vpi\n"); 3636 mempool_free(mbox, phba->mbox_mem_pool); 3637 vport->unreg_vpi_cmpl = VPORT_ERROR; 3638 return rc; 3639 } 3640 return 0; 3641 } 3642 3643 static void 3644 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3645 { 3646 struct lpfc_vport *vport = pmb->vport; 3647 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3648 MAILBOX_t *mb = &pmb->u.mb; 3649 3650 switch (mb->mbxStatus) { 3651 case 0x0011: 3652 case 0x9601: 3653 case 0x9602: 3654 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 3655 "0912 cmpl_reg_vpi, mb status = 0x%x\n", 3656 mb->mbxStatus); 3657 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3658 spin_lock_irq(shost->host_lock); 3659 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 3660 spin_unlock_irq(shost->host_lock); 3661 vport->fc_myDID = 0; 3662 3663 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3664 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3665 if (phba->nvmet_support) 3666 lpfc_nvmet_update_targetport(phba); 3667 else 3668 lpfc_nvme_update_localport(vport); 3669 } 3670 goto out; 3671 } 3672 3673 spin_lock_irq(shost->host_lock); 3674 vport->vpi_state |= LPFC_VPI_REGISTERED; 3675 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; 3676 spin_unlock_irq(shost->host_lock); 3677 vport->num_disc_nodes = 0; 3678 /* go thru NPR list and issue ELS PLOGIs */ 3679 if (vport->fc_npr_cnt) 3680 lpfc_els_disc_plogi(vport); 3681 3682 if (!vport->num_disc_nodes) { 3683 spin_lock_irq(shost->host_lock); 3684 vport->fc_flag &= ~FC_NDISC_ACTIVE; 3685 spin_unlock_irq(shost->host_lock); 3686 lpfc_can_disctmo(vport); 3687 } 3688 vport->port_state = LPFC_VPORT_READY; 3689 3690 out: 3691 mempool_free(pmb, phba->mbox_mem_pool); 3692 return; 3693 } 3694 3695 /** 3696 * lpfc_create_static_vport - Read HBA config region to create static vports. 3697 * @phba: pointer to lpfc hba data structure. 3698 * 3699 * This routine issue a DUMP mailbox command for config region 22 to get 3700 * the list of static vports to be created. The function create vports 3701 * based on the information returned from the HBA. 3702 **/ 3703 void 3704 lpfc_create_static_vport(struct lpfc_hba *phba) 3705 { 3706 LPFC_MBOXQ_t *pmb = NULL; 3707 MAILBOX_t *mb; 3708 struct static_vport_info *vport_info; 3709 int mbx_wait_rc = 0, i; 3710 struct fc_vport_identifiers vport_id; 3711 struct fc_vport *new_fc_vport; 3712 struct Scsi_Host *shost; 3713 struct lpfc_vport *vport; 3714 uint16_t offset = 0; 3715 uint8_t *vport_buff; 3716 struct lpfc_dmabuf *mp; 3717 uint32_t byte_count = 0; 3718 3719 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3720 if (!pmb) { 3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3722 "0542 lpfc_create_static_vport failed to" 3723 " allocate mailbox memory\n"); 3724 return; 3725 } 3726 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 3727 mb = &pmb->u.mb; 3728 3729 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); 3730 if (!vport_info) { 3731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3732 "0543 lpfc_create_static_vport failed to" 3733 " allocate vport_info\n"); 3734 mempool_free(pmb, phba->mbox_mem_pool); 3735 return; 3736 } 3737 3738 vport_buff = (uint8_t *) vport_info; 3739 do { 3740 /* free dma buffer from previous round */ 3741 if (pmb->ctx_buf) { 3742 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3743 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3744 kfree(mp); 3745 } 3746 if (lpfc_dump_static_vport(phba, pmb, offset)) 3747 goto out; 3748 3749 pmb->vport = phba->pport; 3750 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, 3751 LPFC_MBOX_TMO); 3752 3753 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { 3754 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3755 "0544 lpfc_create_static_vport failed to" 3756 " issue dump mailbox command ret 0x%x " 3757 "status 0x%x\n", 3758 mbx_wait_rc, mb->mbxStatus); 3759 goto out; 3760 } 3761 3762 if (phba->sli_rev == LPFC_SLI_REV4) { 3763 byte_count = pmb->u.mqe.un.mb_words[5]; 3764 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3765 if (byte_count > sizeof(struct static_vport_info) - 3766 offset) 3767 byte_count = sizeof(struct static_vport_info) 3768 - offset; 3769 memcpy(vport_buff + offset, mp->virt, byte_count); 3770 offset += byte_count; 3771 } else { 3772 if (mb->un.varDmp.word_cnt > 3773 sizeof(struct static_vport_info) - offset) 3774 mb->un.varDmp.word_cnt = 3775 sizeof(struct static_vport_info) 3776 - offset; 3777 byte_count = mb->un.varDmp.word_cnt; 3778 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 3779 vport_buff + offset, 3780 byte_count); 3781 3782 offset += byte_count; 3783 } 3784 3785 } while (byte_count && 3786 offset < sizeof(struct static_vport_info)); 3787 3788 3789 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || 3790 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) 3791 != VPORT_INFO_REV)) { 3792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3793 "0545 lpfc_create_static_vport bad" 3794 " information header 0x%x 0x%x\n", 3795 le32_to_cpu(vport_info->signature), 3796 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); 3797 3798 goto out; 3799 } 3800 3801 shost = lpfc_shost_from_vport(phba->pport); 3802 3803 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { 3804 memset(&vport_id, 0, sizeof(vport_id)); 3805 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); 3806 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); 3807 if (!vport_id.port_name || !vport_id.node_name) 3808 continue; 3809 3810 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; 3811 vport_id.vport_type = FC_PORTTYPE_NPIV; 3812 vport_id.disable = false; 3813 new_fc_vport = fc_vport_create(shost, 0, &vport_id); 3814 3815 if (!new_fc_vport) { 3816 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3817 "0546 lpfc_create_static_vport failed to" 3818 " create vport\n"); 3819 continue; 3820 } 3821 3822 vport = *(struct lpfc_vport **)new_fc_vport->dd_data; 3823 vport->vport_flag |= STATIC_VPORT; 3824 } 3825 3826 out: 3827 kfree(vport_info); 3828 if (mbx_wait_rc != MBX_TIMEOUT) { 3829 if (pmb->ctx_buf) { 3830 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 3831 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3832 kfree(mp); 3833 } 3834 mempool_free(pmb, phba->mbox_mem_pool); 3835 } 3836 3837 return; 3838 } 3839 3840 /* 3841 * This routine handles processing a Fabric REG_LOGIN mailbox 3842 * command upon completion. It is setup in the LPFC_MBOXQ 3843 * as the completion routine when the command is 3844 * handed off to the SLI layer. 3845 */ 3846 void 3847 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 3848 { 3849 struct lpfc_vport *vport = pmb->vport; 3850 MAILBOX_t *mb = &pmb->u.mb; 3851 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 3852 struct lpfc_nodelist *ndlp; 3853 struct Scsi_Host *shost; 3854 3855 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 3856 pmb->ctx_ndlp = NULL; 3857 pmb->ctx_buf = NULL; 3858 3859 if (mb->mbxStatus) { 3860 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 3861 "0258 Register Fabric login error: 0x%x\n", 3862 mb->mbxStatus); 3863 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3864 kfree(mp); 3865 mempool_free(pmb, phba->mbox_mem_pool); 3866 3867 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 3868 /* FLOGI failed, use loop map to make discovery list */ 3869 lpfc_disc_list_loopmap(vport); 3870 3871 /* Start discovery */ 3872 lpfc_disc_start(vport); 3873 /* Decrement the reference count to ndlp after the 3874 * reference to the ndlp are done. 3875 */ 3876 lpfc_nlp_put(ndlp); 3877 return; 3878 } 3879 3880 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 3881 /* Decrement the reference count to ndlp after the reference 3882 * to the ndlp are done. 3883 */ 3884 lpfc_nlp_put(ndlp); 3885 return; 3886 } 3887 3888 if (phba->sli_rev < LPFC_SLI_REV4) 3889 ndlp->nlp_rpi = mb->un.varWords[0]; 3890 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 3891 ndlp->nlp_type |= NLP_FABRIC; 3892 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 3893 3894 if (vport->port_state == LPFC_FABRIC_CFG_LINK) { 3895 /* when physical port receive logo donot start 3896 * vport discovery */ 3897 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) 3898 lpfc_start_fdiscs(phba); 3899 else { 3900 shost = lpfc_shost_from_vport(vport); 3901 spin_lock_irq(shost->host_lock); 3902 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; 3903 spin_unlock_irq(shost->host_lock); 3904 } 3905 lpfc_do_scr_ns_plogi(phba, vport); 3906 } 3907 3908 lpfc_mbuf_free(phba, mp->virt, mp->phys); 3909 kfree(mp); 3910 mempool_free(pmb, phba->mbox_mem_pool); 3911 3912 /* Drop the reference count from the mbox at the end after 3913 * all the current reference to the ndlp have been done. 3914 */ 3915 lpfc_nlp_put(ndlp); 3916 return; 3917 } 3918 3919 /* 3920 * This routine will issue a GID_FT for each FC4 Type supported 3921 * by the driver. ALL GID_FTs must complete before discovery is started. 3922 */ 3923 int 3924 lpfc_issue_gidft(struct lpfc_vport *vport) 3925 { 3926 struct lpfc_hba *phba = vport->phba; 3927 3928 /* Good status, issue CT Request to NameServer */ 3929 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3930 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { 3931 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { 3932 /* Cannot issue NameServer FCP Query, so finish up 3933 * discovery 3934 */ 3935 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3936 "0604 %s FC TYPE %x %s\n", 3937 "Failed to issue GID_FT to ", 3938 FC_TYPE_FCP, 3939 "Finishing discovery."); 3940 return 0; 3941 } 3942 vport->gidft_inp++; 3943 } 3944 3945 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 3946 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 3947 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { 3948 /* Cannot issue NameServer NVME Query, so finish up 3949 * discovery 3950 */ 3951 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3952 "0605 %s FC_TYPE %x %s %d\n", 3953 "Failed to issue GID_FT to ", 3954 FC_TYPE_NVME, 3955 "Finishing discovery: gidftinp ", 3956 vport->gidft_inp); 3957 if (vport->gidft_inp == 0) 3958 return 0; 3959 } else 3960 vport->gidft_inp++; 3961 } 3962 return vport->gidft_inp; 3963 } 3964 3965 /** 3966 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports 3967 * @vport: The virtual port for which this call is being executed. 3968 * 3969 * This routine will issue a GID_PT to get a list of all N_Ports 3970 * 3971 * Return value : 3972 * 0 - Failure to issue a GID_PT 3973 * 1 - GID_PT issued 3974 **/ 3975 int 3976 lpfc_issue_gidpt(struct lpfc_vport *vport) 3977 { 3978 /* Good status, issue CT Request to NameServer */ 3979 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { 3980 /* Cannot issue NameServer FCP Query, so finish up 3981 * discovery 3982 */ 3983 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, 3984 "0606 %s Port TYPE %x %s\n", 3985 "Failed to issue GID_PT to ", 3986 GID_PT_N_PORT, 3987 "Finishing discovery."); 3988 return 0; 3989 } 3990 vport->gidft_inp++; 3991 return 1; 3992 } 3993 3994 /* 3995 * This routine handles processing a NameServer REG_LOGIN mailbox 3996 * command upon completion. It is setup in the LPFC_MBOXQ 3997 * as the completion routine when the command is 3998 * handed off to the SLI layer. 3999 */ 4000 void 4001 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4002 { 4003 MAILBOX_t *mb = &pmb->u.mb; 4004 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 4005 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 4006 struct lpfc_vport *vport = pmb->vport; 4007 4008 pmb->ctx_buf = NULL; 4009 pmb->ctx_ndlp = NULL; 4010 vport->gidft_inp = 0; 4011 4012 if (mb->mbxStatus) { 4013 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 4014 "0260 Register NameServer error: 0x%x\n", 4015 mb->mbxStatus); 4016 4017 out: 4018 /* decrement the node reference count held for this 4019 * callback function. 4020 */ 4021 lpfc_nlp_put(ndlp); 4022 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4023 kfree(mp); 4024 mempool_free(pmb, phba->mbox_mem_pool); 4025 4026 /* If no other thread is using the ndlp, free it */ 4027 lpfc_nlp_not_used(ndlp); 4028 4029 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4030 /* 4031 * RegLogin failed, use loop map to make discovery 4032 * list 4033 */ 4034 lpfc_disc_list_loopmap(vport); 4035 4036 /* Start discovery */ 4037 lpfc_disc_start(vport); 4038 return; 4039 } 4040 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 4041 return; 4042 } 4043 4044 if (phba->sli_rev < LPFC_SLI_REV4) 4045 ndlp->nlp_rpi = mb->un.varWords[0]; 4046 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 4047 ndlp->nlp_type |= NLP_FABRIC; 4048 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4049 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4050 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n", 4051 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 4052 kref_read(&ndlp->kref), 4053 ndlp->nlp_usg_map, ndlp); 4054 4055 if (vport->port_state < LPFC_VPORT_READY) { 4056 /* Link up discovery requires Fabric registration. */ 4057 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); 4058 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); 4059 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 4060 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); 4061 4062 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4063 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) 4064 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); 4065 4066 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || 4067 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) 4068 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 4069 FC_TYPE_NVME); 4070 4071 /* Issue SCR just before NameServer GID_FT Query */ 4072 lpfc_issue_els_scr(vport, SCR_DID, 0); 4073 } 4074 4075 vport->fc_ns_retry = 0; 4076 if (lpfc_issue_gidft(vport) == 0) 4077 goto out; 4078 4079 /* 4080 * At this point in time we may need to wait for multiple 4081 * SLI_CTNS_GID_FT CT commands to complete before we start discovery. 4082 * 4083 * decrement the node reference count held for this 4084 * callback function. 4085 */ 4086 lpfc_nlp_put(ndlp); 4087 lpfc_mbuf_free(phba, mp->virt, mp->phys); 4088 kfree(mp); 4089 mempool_free(pmb, phba->mbox_mem_pool); 4090 4091 return; 4092 } 4093 4094 static void 4095 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4096 { 4097 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4098 struct fc_rport *rport; 4099 struct lpfc_rport_data *rdata; 4100 struct fc_rport_identifiers rport_ids; 4101 struct lpfc_hba *phba = vport->phba; 4102 4103 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4104 return; 4105 4106 /* Remote port has reappeared. Re-register w/ FC transport */ 4107 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); 4108 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); 4109 rport_ids.port_id = ndlp->nlp_DID; 4110 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 4111 4112 /* 4113 * We leave our node pointer in rport->dd_data when we unregister a 4114 * FCP target port. But fc_remote_port_add zeros the space to which 4115 * rport->dd_data points. So, if we're reusing a previously 4116 * registered port, drop the reference that we took the last time we 4117 * registered the port. 4118 */ 4119 rport = ndlp->rport; 4120 if (rport) { 4121 rdata = rport->dd_data; 4122 /* break the link before dropping the ref */ 4123 ndlp->rport = NULL; 4124 if (rdata) { 4125 if (rdata->pnode == ndlp) 4126 lpfc_nlp_put(ndlp); 4127 rdata->pnode = NULL; 4128 } 4129 /* drop reference for earlier registeration */ 4130 put_device(&rport->dev); 4131 } 4132 4133 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4134 "rport add: did:x%x flg:x%x type x%x", 4135 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4136 4137 /* Don't add the remote port if unloading. */ 4138 if (vport->load_flag & FC_UNLOADING) 4139 return; 4140 4141 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); 4142 if (!rport || !get_device(&rport->dev)) { 4143 dev_printk(KERN_WARNING, &phba->pcidev->dev, 4144 "Warning: fc_remote_port_add failed\n"); 4145 return; 4146 } 4147 4148 /* initialize static port data */ 4149 rport->maxframe_size = ndlp->nlp_maxframe; 4150 rport->supported_classes = ndlp->nlp_class_sup; 4151 rdata = rport->dd_data; 4152 rdata->pnode = lpfc_nlp_get(ndlp); 4153 4154 if (ndlp->nlp_type & NLP_FCP_TARGET) 4155 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 4156 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 4157 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 4158 4159 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) 4160 fc_remote_port_rolechg(rport, rport_ids.roles); 4161 4162 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 4163 "3183 rport register x%06x, rport %p role x%x\n", 4164 ndlp->nlp_DID, rport, rport_ids.roles); 4165 4166 if ((rport->scsi_target_id != -1) && 4167 (rport->scsi_target_id < LPFC_MAX_TARGET)) { 4168 ndlp->nlp_sid = rport->scsi_target_id; 4169 } 4170 return; 4171 } 4172 4173 static void 4174 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) 4175 { 4176 struct fc_rport *rport = ndlp->rport; 4177 struct lpfc_vport *vport = ndlp->vport; 4178 struct lpfc_hba *phba = vport->phba; 4179 4180 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 4181 return; 4182 4183 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 4184 "rport delete: did:x%x flg:x%x type x%x", 4185 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 4186 4187 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4188 "3184 rport unregister x%06x, rport %p\n", 4189 ndlp->nlp_DID, rport); 4190 4191 fc_remote_port_delete(rport); 4192 4193 return; 4194 } 4195 4196 static void 4197 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) 4198 { 4199 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4200 4201 spin_lock_irq(shost->host_lock); 4202 switch (state) { 4203 case NLP_STE_UNUSED_NODE: 4204 vport->fc_unused_cnt += count; 4205 break; 4206 case NLP_STE_PLOGI_ISSUE: 4207 vport->fc_plogi_cnt += count; 4208 break; 4209 case NLP_STE_ADISC_ISSUE: 4210 vport->fc_adisc_cnt += count; 4211 break; 4212 case NLP_STE_REG_LOGIN_ISSUE: 4213 vport->fc_reglogin_cnt += count; 4214 break; 4215 case NLP_STE_PRLI_ISSUE: 4216 vport->fc_prli_cnt += count; 4217 break; 4218 case NLP_STE_UNMAPPED_NODE: 4219 vport->fc_unmap_cnt += count; 4220 break; 4221 case NLP_STE_MAPPED_NODE: 4222 vport->fc_map_cnt += count; 4223 break; 4224 case NLP_STE_NPR_NODE: 4225 if (vport->fc_npr_cnt == 0 && count == -1) 4226 vport->fc_npr_cnt = 0; 4227 else 4228 vport->fc_npr_cnt += count; 4229 break; 4230 } 4231 spin_unlock_irq(shost->host_lock); 4232 } 4233 4234 static void 4235 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4236 int old_state, int new_state) 4237 { 4238 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4239 4240 if (new_state == NLP_STE_UNMAPPED_NODE) { 4241 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4242 ndlp->nlp_type |= NLP_FC_NODE; 4243 } 4244 if (new_state == NLP_STE_MAPPED_NODE) 4245 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; 4246 if (new_state == NLP_STE_NPR_NODE) 4247 ndlp->nlp_flag &= ~NLP_RCV_PLOGI; 4248 4249 /* FCP and NVME Transport interface */ 4250 if ((old_state == NLP_STE_MAPPED_NODE || 4251 old_state == NLP_STE_UNMAPPED_NODE)) { 4252 if (ndlp->rport) { 4253 vport->phba->nport_event_cnt++; 4254 lpfc_unregister_remote_port(ndlp); 4255 } 4256 4257 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4258 vport->phba->nport_event_cnt++; 4259 if (vport->phba->nvmet_support == 0) { 4260 /* Start devloss if target. */ 4261 if (ndlp->nlp_type & NLP_NVME_TARGET) 4262 lpfc_nvme_unregister_port(vport, ndlp); 4263 } else { 4264 /* NVMET has no upcall. */ 4265 lpfc_nlp_put(ndlp); 4266 } 4267 } 4268 } 4269 4270 /* FCP and NVME Transport interfaces */ 4271 4272 if (new_state == NLP_STE_MAPPED_NODE || 4273 new_state == NLP_STE_UNMAPPED_NODE) { 4274 if (ndlp->nlp_fc4_type || 4275 ndlp->nlp_DID == Fabric_DID || 4276 ndlp->nlp_DID == NameServer_DID || 4277 ndlp->nlp_DID == FDMI_DID) { 4278 vport->phba->nport_event_cnt++; 4279 /* 4280 * Tell the fc transport about the port, if we haven't 4281 * already. If we have, and it's a scsi entity, be 4282 */ 4283 lpfc_register_remote_port(vport, ndlp); 4284 } 4285 /* Notify the NVME transport of this new rport. */ 4286 if (vport->phba->sli_rev >= LPFC_SLI_REV4 && 4287 ndlp->nlp_fc4_type & NLP_FC4_NVME) { 4288 if (vport->phba->nvmet_support == 0) { 4289 /* Register this rport with the transport. 4290 * Only NVME Target Rports are registered with 4291 * the transport. 4292 */ 4293 if (ndlp->nlp_type & NLP_NVME_TARGET) { 4294 vport->phba->nport_event_cnt++; 4295 lpfc_nvme_register_port(vport, ndlp); 4296 } 4297 } else { 4298 /* Just take an NDLP ref count since the 4299 * target does not register rports. 4300 */ 4301 lpfc_nlp_get(ndlp); 4302 } 4303 } 4304 } 4305 4306 if ((new_state == NLP_STE_MAPPED_NODE) && 4307 (vport->stat_data_enabled)) { 4308 /* 4309 * A new target is discovered, if there is no buffer for 4310 * statistical data collection allocate buffer. 4311 */ 4312 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, 4313 sizeof(struct lpfc_scsicmd_bkt), 4314 GFP_KERNEL); 4315 4316 if (!ndlp->lat_data) 4317 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, 4318 "0286 lpfc_nlp_state_cleanup failed to " 4319 "allocate statistical data buffer DID " 4320 "0x%x\n", ndlp->nlp_DID); 4321 } 4322 /* 4323 * If the node just added to Mapped list was an FCP target, 4324 * but the remote port registration failed or assigned a target 4325 * id outside the presentable range - move the node to the 4326 * Unmapped List. 4327 */ 4328 if ((new_state == NLP_STE_MAPPED_NODE) && 4329 (ndlp->nlp_type & NLP_FCP_TARGET) && 4330 (!ndlp->rport || 4331 ndlp->rport->scsi_target_id == -1 || 4332 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { 4333 spin_lock_irq(shost->host_lock); 4334 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; 4335 spin_unlock_irq(shost->host_lock); 4336 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 4337 } 4338 } 4339 4340 static char * 4341 lpfc_nlp_state_name(char *buffer, size_t size, int state) 4342 { 4343 static char *states[] = { 4344 [NLP_STE_UNUSED_NODE] = "UNUSED", 4345 [NLP_STE_PLOGI_ISSUE] = "PLOGI", 4346 [NLP_STE_ADISC_ISSUE] = "ADISC", 4347 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", 4348 [NLP_STE_PRLI_ISSUE] = "PRLI", 4349 [NLP_STE_LOGO_ISSUE] = "LOGO", 4350 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", 4351 [NLP_STE_MAPPED_NODE] = "MAPPED", 4352 [NLP_STE_NPR_NODE] = "NPR", 4353 }; 4354 4355 if (state < NLP_STE_MAX_STATE && states[state]) 4356 strlcpy(buffer, states[state], size); 4357 else 4358 snprintf(buffer, size, "unknown (%d)", state); 4359 return buffer; 4360 } 4361 4362 void 4363 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4364 int state) 4365 { 4366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4367 int old_state = ndlp->nlp_state; 4368 char name1[16], name2[16]; 4369 4370 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4371 "0904 NPort state transition x%06x, %s -> %s\n", 4372 ndlp->nlp_DID, 4373 lpfc_nlp_state_name(name1, sizeof(name1), old_state), 4374 lpfc_nlp_state_name(name2, sizeof(name2), state)); 4375 4376 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4377 "node statechg did:x%x old:%d ste:%d", 4378 ndlp->nlp_DID, old_state, state); 4379 4380 if (old_state == NLP_STE_NPR_NODE && 4381 state != NLP_STE_NPR_NODE) 4382 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4383 if (old_state == NLP_STE_UNMAPPED_NODE) { 4384 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; 4385 ndlp->nlp_type &= ~NLP_FC_NODE; 4386 } 4387 4388 if (list_empty(&ndlp->nlp_listp)) { 4389 spin_lock_irq(shost->host_lock); 4390 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4391 spin_unlock_irq(shost->host_lock); 4392 } else if (old_state) 4393 lpfc_nlp_counters(vport, old_state, -1); 4394 4395 ndlp->nlp_state = state; 4396 lpfc_nlp_counters(vport, state, 1); 4397 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); 4398 } 4399 4400 void 4401 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4402 { 4403 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4404 4405 if (list_empty(&ndlp->nlp_listp)) { 4406 spin_lock_irq(shost->host_lock); 4407 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); 4408 spin_unlock_irq(shost->host_lock); 4409 } 4410 } 4411 4412 void 4413 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4414 { 4415 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4416 4417 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4418 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4419 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4420 spin_lock_irq(shost->host_lock); 4421 list_del_init(&ndlp->nlp_listp); 4422 spin_unlock_irq(shost->host_lock); 4423 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4424 NLP_STE_UNUSED_NODE); 4425 } 4426 4427 static void 4428 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4429 { 4430 lpfc_cancel_retry_delay_tmo(vport, ndlp); 4431 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) 4432 lpfc_nlp_counters(vport, ndlp->nlp_state, -1); 4433 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, 4434 NLP_STE_UNUSED_NODE); 4435 } 4436 /** 4437 * lpfc_initialize_node - Initialize all fields of node object 4438 * @vport: Pointer to Virtual Port object. 4439 * @ndlp: Pointer to FC node object. 4440 * @did: FC_ID of the node. 4441 * 4442 * This function is always called when node object need to be initialized. 4443 * It initializes all the fields of the node object. Although the reference 4444 * to phba from @ndlp can be obtained indirectly through it's reference to 4445 * @vport, a direct reference to phba is taken here by @ndlp. This is due 4446 * to the life-span of the @ndlp might go beyond the existence of @vport as 4447 * the final release of ndlp is determined by its reference count. And, the 4448 * operation on @ndlp needs the reference to phba. 4449 **/ 4450 static inline void 4451 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4452 uint32_t did) 4453 { 4454 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); 4455 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); 4456 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); 4457 ndlp->nlp_DID = did; 4458 ndlp->vport = vport; 4459 ndlp->phba = vport->phba; 4460 ndlp->nlp_sid = NLP_NO_SID; 4461 ndlp->nlp_fc4_type = NLP_FC4_NONE; 4462 kref_init(&ndlp->kref); 4463 NLP_INT_NODE_ACT(ndlp); 4464 atomic_set(&ndlp->cmd_pending, 0); 4465 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4466 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4467 } 4468 4469 struct lpfc_nodelist * 4470 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 4471 int state) 4472 { 4473 struct lpfc_hba *phba = vport->phba; 4474 uint32_t did, flag; 4475 unsigned long flags; 4476 unsigned long *active_rrqs_xri_bitmap = NULL; 4477 int rpi = LPFC_RPI_ALLOC_ERROR; 4478 uint32_t defer_did = 0; 4479 4480 if (!ndlp) 4481 return NULL; 4482 4483 if (phba->sli_rev == LPFC_SLI_REV4) { 4484 rpi = lpfc_sli4_alloc_rpi(vport->phba); 4485 if (rpi == LPFC_RPI_ALLOC_ERROR) 4486 return NULL; 4487 } 4488 4489 spin_lock_irqsave(&phba->ndlp_lock, flags); 4490 /* The ndlp should not be in memory free mode */ 4491 if (NLP_CHK_FREE_REQ(ndlp)) { 4492 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4493 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4494 "0277 lpfc_enable_node: ndlp:x%p " 4495 "usgmap:x%x refcnt:%d\n", 4496 (void *)ndlp, ndlp->nlp_usg_map, 4497 kref_read(&ndlp->kref)); 4498 goto free_rpi; 4499 } 4500 /* The ndlp should not already be in active mode */ 4501 if (NLP_CHK_NODE_ACT(ndlp)) { 4502 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4503 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 4504 "0278 lpfc_enable_node: ndlp:x%p " 4505 "usgmap:x%x refcnt:%d\n", 4506 (void *)ndlp, ndlp->nlp_usg_map, 4507 kref_read(&ndlp->kref)); 4508 goto free_rpi; 4509 } 4510 4511 /* First preserve the orginal DID, xri_bitmap and some flags */ 4512 did = ndlp->nlp_DID; 4513 flag = (ndlp->nlp_flag & NLP_UNREG_INP); 4514 if (flag & NLP_UNREG_INP) 4515 defer_did = ndlp->nlp_defer_did; 4516 if (phba->sli_rev == LPFC_SLI_REV4) 4517 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; 4518 4519 /* Zero ndlp except of ndlp linked list pointer */ 4520 memset((((char *)ndlp) + sizeof (struct list_head)), 0, 4521 sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); 4522 4523 /* Next reinitialize and restore saved objects */ 4524 lpfc_initialize_node(vport, ndlp, did); 4525 ndlp->nlp_flag |= flag; 4526 if (flag & NLP_UNREG_INP) 4527 ndlp->nlp_defer_did = defer_did; 4528 if (phba->sli_rev == LPFC_SLI_REV4) 4529 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; 4530 4531 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 4532 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4533 ndlp->nlp_rpi = rpi; 4534 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 4535 "0008 rpi:%x DID:%x flg:%x refcnt:%d " 4536 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 4537 ndlp->nlp_flag, 4538 kref_read(&ndlp->kref), 4539 ndlp->nlp_usg_map, ndlp); 4540 } 4541 4542 4543 if (state != NLP_STE_UNUSED_NODE) 4544 lpfc_nlp_set_state(vport, ndlp, state); 4545 4546 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 4547 "node enable: did:x%x", 4548 ndlp->nlp_DID, 0, 0); 4549 return ndlp; 4550 4551 free_rpi: 4552 if (phba->sli_rev == LPFC_SLI_REV4) 4553 lpfc_sli4_free_rpi(vport->phba, rpi); 4554 return NULL; 4555 } 4556 4557 void 4558 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4559 { 4560 /* 4561 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should 4562 * be used if we wish to issue the "last" lpfc_nlp_put() to remove 4563 * the ndlp from the vport. The ndlp marked as UNUSED on the list 4564 * until ALL other outstanding threads have completed. We check 4565 * that the ndlp not already in the UNUSED state before we proceed. 4566 */ 4567 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4568 return; 4569 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); 4570 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 4571 lpfc_cleanup_vports_rrqs(vport, ndlp); 4572 lpfc_unreg_rpi(vport, ndlp); 4573 } 4574 4575 lpfc_nlp_put(ndlp); 4576 return; 4577 } 4578 4579 /* 4580 * Start / ReStart rescue timer for Discovery / RSCN handling 4581 */ 4582 void 4583 lpfc_set_disctmo(struct lpfc_vport *vport) 4584 { 4585 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4586 struct lpfc_hba *phba = vport->phba; 4587 uint32_t tmo; 4588 4589 if (vport->port_state == LPFC_LOCAL_CFG_LINK) { 4590 /* For FAN, timeout should be greater than edtov */ 4591 tmo = (((phba->fc_edtov + 999) / 1000) + 1); 4592 } else { 4593 /* Normal discovery timeout should be > than ELS/CT timeout 4594 * FC spec states we need 3 * ratov for CT requests 4595 */ 4596 tmo = ((phba->fc_ratov * 3) + 3); 4597 } 4598 4599 4600 if (!timer_pending(&vport->fc_disctmo)) { 4601 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4602 "set disc timer: tmo:x%x state:x%x flg:x%x", 4603 tmo, vport->port_state, vport->fc_flag); 4604 } 4605 4606 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); 4607 spin_lock_irq(shost->host_lock); 4608 vport->fc_flag |= FC_DISC_TMO; 4609 spin_unlock_irq(shost->host_lock); 4610 4611 /* Start Discovery Timer state <hba_state> */ 4612 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4613 "0247 Start Discovery Timer state x%x " 4614 "Data: x%x x%lx x%x x%x\n", 4615 vport->port_state, tmo, 4616 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, 4617 vport->fc_adisc_cnt); 4618 4619 return; 4620 } 4621 4622 /* 4623 * Cancel rescue timer for Discovery / RSCN handling 4624 */ 4625 int 4626 lpfc_can_disctmo(struct lpfc_vport *vport) 4627 { 4628 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4629 unsigned long iflags; 4630 4631 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 4632 "can disc timer: state:x%x rtry:x%x flg:x%x", 4633 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 4634 4635 /* Turn off discovery timer if its running */ 4636 if (vport->fc_flag & FC_DISC_TMO) { 4637 spin_lock_irqsave(shost->host_lock, iflags); 4638 vport->fc_flag &= ~FC_DISC_TMO; 4639 spin_unlock_irqrestore(shost->host_lock, iflags); 4640 del_timer_sync(&vport->fc_disctmo); 4641 spin_lock_irqsave(&vport->work_port_lock, iflags); 4642 vport->work_port_events &= ~WORKER_DISC_TMO; 4643 spin_unlock_irqrestore(&vport->work_port_lock, iflags); 4644 } 4645 4646 /* Cancel Discovery Timer state <hba_state> */ 4647 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4648 "0248 Cancel Discovery Timer state x%x " 4649 "Data: x%x x%x x%x\n", 4650 vport->port_state, vport->fc_flag, 4651 vport->fc_plogi_cnt, vport->fc_adisc_cnt); 4652 return 0; 4653 } 4654 4655 /* 4656 * Check specified ring for outstanding IOCB on the SLI queue 4657 * Return true if iocb matches the specified nport 4658 */ 4659 int 4660 lpfc_check_sli_ndlp(struct lpfc_hba *phba, 4661 struct lpfc_sli_ring *pring, 4662 struct lpfc_iocbq *iocb, 4663 struct lpfc_nodelist *ndlp) 4664 { 4665 IOCB_t *icmd = &iocb->iocb; 4666 struct lpfc_vport *vport = ndlp->vport; 4667 4668 if (iocb->vport != vport) 4669 return 0; 4670 4671 if (pring->ringno == LPFC_ELS_RING) { 4672 switch (icmd->ulpCommand) { 4673 case CMD_GEN_REQUEST64_CR: 4674 if (iocb->context_un.ndlp == ndlp) 4675 return 1; 4676 case CMD_ELS_REQUEST64_CR: 4677 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) 4678 return 1; 4679 case CMD_XMIT_ELS_RSP64_CX: 4680 if (iocb->context1 == (uint8_t *) ndlp) 4681 return 1; 4682 } 4683 } else if (pring->ringno == LPFC_FCP_RING) { 4684 /* Skip match check if waiting to relogin to FCP target */ 4685 if ((ndlp->nlp_type & NLP_FCP_TARGET) && 4686 (ndlp->nlp_flag & NLP_DELAY_TMO)) { 4687 return 0; 4688 } 4689 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { 4690 return 1; 4691 } 4692 } 4693 return 0; 4694 } 4695 4696 static void 4697 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, 4698 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, 4699 struct list_head *dequeue_list) 4700 { 4701 struct lpfc_iocbq *iocb, *next_iocb; 4702 4703 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 4704 /* Check to see if iocb matches the nport */ 4705 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 4706 /* match, dequeue */ 4707 list_move_tail(&iocb->list, dequeue_list); 4708 } 4709 } 4710 4711 static void 4712 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, 4713 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4714 { 4715 struct lpfc_sli *psli = &phba->sli; 4716 uint32_t i; 4717 4718 spin_lock_irq(&phba->hbalock); 4719 for (i = 0; i < psli->num_rings; i++) 4720 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], 4721 dequeue_list); 4722 spin_unlock_irq(&phba->hbalock); 4723 } 4724 4725 static void 4726 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, 4727 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) 4728 { 4729 struct lpfc_sli_ring *pring; 4730 struct lpfc_queue *qp = NULL; 4731 4732 spin_lock_irq(&phba->hbalock); 4733 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 4734 pring = qp->pring; 4735 if (!pring) 4736 continue; 4737 spin_lock(&pring->ring_lock); 4738 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); 4739 spin_unlock(&pring->ring_lock); 4740 } 4741 spin_unlock_irq(&phba->hbalock); 4742 } 4743 4744 /* 4745 * Free resources / clean up outstanding I/Os 4746 * associated with nlp_rpi in the LPFC_NODELIST entry. 4747 */ 4748 static int 4749 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 4750 { 4751 LIST_HEAD(completions); 4752 4753 lpfc_fabric_abort_nport(ndlp); 4754 4755 /* 4756 * Everything that matches on txcmplq will be returned 4757 * by firmware with a no rpi error. 4758 */ 4759 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4760 if (phba->sli_rev != LPFC_SLI_REV4) 4761 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); 4762 else 4763 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); 4764 } 4765 4766 /* Cancel all the IOCBs from the completions list */ 4767 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 4768 IOERR_SLI_ABORTED); 4769 4770 return 0; 4771 } 4772 4773 /** 4774 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO 4775 * @phba: Pointer to HBA context object. 4776 * @pmb: Pointer to mailbox object. 4777 * 4778 * This function will issue an ELS LOGO command after completing 4779 * the UNREG_RPI. 4780 **/ 4781 static void 4782 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4783 { 4784 struct lpfc_vport *vport = pmb->vport; 4785 struct lpfc_nodelist *ndlp; 4786 4787 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); 4788 if (!ndlp) 4789 return; 4790 lpfc_issue_els_logo(vport, ndlp, 0); 4791 mempool_free(pmb, phba->mbox_mem_pool); 4792 4793 /* Check to see if there are any deferred events to process */ 4794 if ((ndlp->nlp_flag & NLP_UNREG_INP) && 4795 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { 4796 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4797 "1434 UNREG cmpl deferred logo x%x " 4798 "on NPort x%x Data: x%x %p\n", 4799 ndlp->nlp_rpi, ndlp->nlp_DID, 4800 ndlp->nlp_defer_did, ndlp); 4801 4802 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4803 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; 4804 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 4805 } else { 4806 ndlp->nlp_flag &= ~NLP_UNREG_INP; 4807 } 4808 } 4809 4810 /* 4811 * Free rpi associated with LPFC_NODELIST entry. 4812 * This routine is called from lpfc_freenode(), when we are removing 4813 * a LPFC_NODELIST entry. It is also called if the driver initiates a 4814 * LOGO that completes successfully, and we are waiting to PLOGI back 4815 * to the remote NPort. In addition, it is called after we receive 4816 * and unsolicated ELS cmd, send back a rsp, the rsp completes and 4817 * we are waiting to PLOGI back to the remote NPort. 4818 */ 4819 int 4820 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 4821 { 4822 struct lpfc_hba *phba = vport->phba; 4823 LPFC_MBOXQ_t *mbox; 4824 int rc, acc_plogi = 1; 4825 uint16_t rpi; 4826 4827 if (ndlp->nlp_flag & NLP_RPI_REGISTERED || 4828 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { 4829 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 4830 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 4831 "3366 RPI x%x needs to be " 4832 "unregistered nlp_flag x%x " 4833 "did x%x\n", 4834 ndlp->nlp_rpi, ndlp->nlp_flag, 4835 ndlp->nlp_DID); 4836 4837 /* If there is already an UNREG in progress for this ndlp, 4838 * no need to queue up another one. 4839 */ 4840 if (ndlp->nlp_flag & NLP_UNREG_INP) { 4841 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4842 "1436 unreg_rpi SKIP UNREG x%x on " 4843 "NPort x%x deferred x%x flg x%x " 4844 "Data: %p\n", 4845 ndlp->nlp_rpi, ndlp->nlp_DID, 4846 ndlp->nlp_defer_did, 4847 ndlp->nlp_flag, ndlp); 4848 goto out; 4849 } 4850 4851 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4852 if (mbox) { 4853 /* SLI4 ports require the physical rpi value. */ 4854 rpi = ndlp->nlp_rpi; 4855 if (phba->sli_rev == LPFC_SLI_REV4) 4856 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 4857 4858 lpfc_unreg_login(phba, vport->vpi, rpi, mbox); 4859 mbox->vport = vport; 4860 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { 4861 mbox->ctx_ndlp = ndlp; 4862 mbox->mbox_cmpl = lpfc_nlp_logo_unreg; 4863 } else { 4864 if (phba->sli_rev == LPFC_SLI_REV4 && 4865 (!(vport->load_flag & FC_UNLOADING)) && 4866 (bf_get(lpfc_sli_intf_if_type, 4867 &phba->sli4_hba.sli_intf) >= 4868 LPFC_SLI_INTF_IF_TYPE_2) && 4869 (kref_read(&ndlp->kref) > 0)) { 4870 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 4871 mbox->mbox_cmpl = 4872 lpfc_sli4_unreg_rpi_cmpl_clr; 4873 /* 4874 * accept PLOGIs after unreg_rpi_cmpl 4875 */ 4876 acc_plogi = 0; 4877 } else { 4878 mbox->ctx_ndlp = ndlp; 4879 mbox->mbox_cmpl = 4880 lpfc_sli_def_mbox_cmpl; 4881 } 4882 } 4883 if (((ndlp->nlp_DID & Fabric_DID_MASK) != 4884 Fabric_DID_MASK) && 4885 (!(vport->fc_flag & FC_OFFLINE_MODE))) 4886 ndlp->nlp_flag |= NLP_UNREG_INP; 4887 4888 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 4889 "1433 unreg_rpi UNREG x%x on " 4890 "NPort x%x deferred flg x%x Data:%p\n", 4891 ndlp->nlp_rpi, ndlp->nlp_DID, 4892 ndlp->nlp_flag, ndlp); 4893 4894 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 4895 if (rc == MBX_NOT_FINISHED) { 4896 mempool_free(mbox, phba->mbox_mem_pool); 4897 acc_plogi = 1; 4898 } 4899 } 4900 lpfc_no_rpi(phba, ndlp); 4901 out: 4902 if (phba->sli_rev != LPFC_SLI_REV4) 4903 ndlp->nlp_rpi = 0; 4904 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; 4905 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 4906 if (acc_plogi) 4907 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4908 return 1; 4909 } 4910 ndlp->nlp_flag &= ~NLP_LOGO_ACC; 4911 return 0; 4912 } 4913 4914 /** 4915 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. 4916 * @phba: pointer to lpfc hba data structure. 4917 * 4918 * This routine is invoked to unregister all the currently registered RPIs 4919 * to the HBA. 4920 **/ 4921 void 4922 lpfc_unreg_hba_rpis(struct lpfc_hba *phba) 4923 { 4924 struct lpfc_vport **vports; 4925 struct lpfc_nodelist *ndlp; 4926 struct Scsi_Host *shost; 4927 int i; 4928 4929 vports = lpfc_create_vport_work_array(phba); 4930 if (!vports) { 4931 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 4932 "2884 Vport array allocation failed \n"); 4933 return; 4934 } 4935 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4936 shost = lpfc_shost_from_vport(vports[i]); 4937 spin_lock_irq(shost->host_lock); 4938 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 4939 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 4940 /* The mempool_alloc might sleep */ 4941 spin_unlock_irq(shost->host_lock); 4942 lpfc_unreg_rpi(vports[i], ndlp); 4943 spin_lock_irq(shost->host_lock); 4944 } 4945 } 4946 spin_unlock_irq(shost->host_lock); 4947 } 4948 lpfc_destroy_vport_work_array(phba, vports); 4949 } 4950 4951 void 4952 lpfc_unreg_all_rpis(struct lpfc_vport *vport) 4953 { 4954 struct lpfc_hba *phba = vport->phba; 4955 LPFC_MBOXQ_t *mbox; 4956 int rc; 4957 4958 if (phba->sli_rev == LPFC_SLI_REV4) { 4959 lpfc_sli4_unreg_all_rpis(vport); 4960 return; 4961 } 4962 4963 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4964 if (mbox) { 4965 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, 4966 mbox); 4967 mbox->vport = vport; 4968 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4969 mbox->ctx_ndlp = NULL; 4970 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4971 if (rc != MBX_TIMEOUT) 4972 mempool_free(mbox, phba->mbox_mem_pool); 4973 4974 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 4975 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 4976 "1836 Could not issue " 4977 "unreg_login(all_rpis) status %d\n", rc); 4978 } 4979 } 4980 4981 void 4982 lpfc_unreg_default_rpis(struct lpfc_vport *vport) 4983 { 4984 struct lpfc_hba *phba = vport->phba; 4985 LPFC_MBOXQ_t *mbox; 4986 int rc; 4987 4988 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4989 if (mbox) { 4990 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, 4991 mbox); 4992 mbox->vport = vport; 4993 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 4994 mbox->ctx_ndlp = NULL; 4995 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); 4996 if (rc != MBX_TIMEOUT) 4997 mempool_free(mbox, phba->mbox_mem_pool); 4998 4999 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) 5000 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, 5001 "1815 Could not issue " 5002 "unreg_did (default rpis) status %d\n", 5003 rc); 5004 } 5005 } 5006 5007 /* 5008 * Free resources associated with LPFC_NODELIST entry 5009 * so it can be freed. 5010 */ 5011 static int 5012 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5013 { 5014 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5015 struct lpfc_hba *phba = vport->phba; 5016 LPFC_MBOXQ_t *mb, *nextmb; 5017 struct lpfc_dmabuf *mp; 5018 5019 /* Cleanup node for NPort <nlp_DID> */ 5020 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5021 "0900 Cleanup node for NPort x%x " 5022 "Data: x%x x%x x%x\n", 5023 ndlp->nlp_DID, ndlp->nlp_flag, 5024 ndlp->nlp_state, ndlp->nlp_rpi); 5025 if (NLP_CHK_FREE_REQ(ndlp)) { 5026 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5027 "0280 lpfc_cleanup_node: ndlp:x%p " 5028 "usgmap:x%x refcnt:%d\n", 5029 (void *)ndlp, ndlp->nlp_usg_map, 5030 kref_read(&ndlp->kref)); 5031 lpfc_dequeue_node(vport, ndlp); 5032 } else { 5033 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5034 "0281 lpfc_cleanup_node: ndlp:x%p " 5035 "usgmap:x%x refcnt:%d\n", 5036 (void *)ndlp, ndlp->nlp_usg_map, 5037 kref_read(&ndlp->kref)); 5038 lpfc_disable_node(vport, ndlp); 5039 } 5040 5041 5042 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ 5043 5044 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 5045 if ((mb = phba->sli.mbox_active)) { 5046 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5047 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5048 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5049 mb->ctx_ndlp = NULL; 5050 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5051 } 5052 } 5053 5054 spin_lock_irq(&phba->hbalock); 5055 /* Cleanup REG_LOGIN completions which are not yet processed */ 5056 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { 5057 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || 5058 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || 5059 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) 5060 continue; 5061 5062 mb->ctx_ndlp = NULL; 5063 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5064 } 5065 5066 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 5067 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 5068 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && 5069 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 5070 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 5071 if (mp) { 5072 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 5073 kfree(mp); 5074 } 5075 list_del(&mb->list); 5076 mempool_free(mb, phba->mbox_mem_pool); 5077 /* We shall not invoke the lpfc_nlp_put to decrement 5078 * the ndlp reference count as we are in the process 5079 * of lpfc_nlp_release. 5080 */ 5081 } 5082 } 5083 spin_unlock_irq(&phba->hbalock); 5084 5085 lpfc_els_abort(phba, ndlp); 5086 5087 spin_lock_irq(shost->host_lock); 5088 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 5089 spin_unlock_irq(shost->host_lock); 5090 5091 ndlp->nlp_last_elscmd = 0; 5092 del_timer_sync(&ndlp->nlp_delayfunc); 5093 5094 list_del_init(&ndlp->els_retry_evt.evt_listp); 5095 list_del_init(&ndlp->dev_loss_evt.evt_listp); 5096 lpfc_cleanup_vports_rrqs(vport, ndlp); 5097 lpfc_unreg_rpi(vport, ndlp); 5098 5099 return 0; 5100 } 5101 5102 /* 5103 * Check to see if we can free the nlp back to the freelist. 5104 * If we are in the middle of using the nlp in the discovery state 5105 * machine, defer the free till we reach the end of the state machine. 5106 */ 5107 static void 5108 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 5109 { 5110 struct lpfc_hba *phba = vport->phba; 5111 struct lpfc_rport_data *rdata; 5112 struct fc_rport *rport; 5113 LPFC_MBOXQ_t *mbox; 5114 int rc; 5115 5116 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5117 if ((ndlp->nlp_flag & NLP_DEFER_RM) && 5118 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && 5119 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) && 5120 phba->sli_rev != LPFC_SLI_REV4) { 5121 /* For this case we need to cleanup the default rpi 5122 * allocated by the firmware. 5123 */ 5124 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5125 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5126 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5127 kref_read(&ndlp->kref), 5128 ndlp->nlp_usg_map, ndlp); 5129 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) 5130 != NULL) { 5131 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, 5132 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); 5133 if (rc) { 5134 mempool_free(mbox, phba->mbox_mem_pool); 5135 } 5136 else { 5137 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; 5138 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; 5139 mbox->vport = vport; 5140 mbox->ctx_ndlp = ndlp; 5141 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5142 if (rc == MBX_NOT_FINISHED) { 5143 mempool_free(mbox, phba->mbox_mem_pool); 5144 } 5145 } 5146 } 5147 } 5148 lpfc_cleanup_node(vport, ndlp); 5149 5150 /* 5151 * ndlp->rport must be set to NULL before it reaches here 5152 * i.e. break rport/node link before doing lpfc_nlp_put for 5153 * registered rport and then drop the reference of rport. 5154 */ 5155 if (ndlp->rport) { 5156 /* 5157 * extra lpfc_nlp_put dropped the reference of ndlp 5158 * for registered rport so need to cleanup rport 5159 */ 5160 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, 5161 "0940 removed node x%p DID x%x " 5162 " rport not null %p\n", 5163 ndlp, ndlp->nlp_DID, ndlp->rport); 5164 rport = ndlp->rport; 5165 rdata = rport->dd_data; 5166 rdata->pnode = NULL; 5167 ndlp->rport = NULL; 5168 put_device(&rport->dev); 5169 } 5170 } 5171 5172 static int 5173 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5174 uint32_t did) 5175 { 5176 D_ID mydid, ndlpdid, matchdid; 5177 5178 if (did == Bcast_DID) 5179 return 0; 5180 5181 /* First check for Direct match */ 5182 if (ndlp->nlp_DID == did) 5183 return 1; 5184 5185 /* Next check for area/domain identically equals 0 match */ 5186 mydid.un.word = vport->fc_myDID; 5187 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { 5188 return 0; 5189 } 5190 5191 matchdid.un.word = did; 5192 ndlpdid.un.word = ndlp->nlp_DID; 5193 if (matchdid.un.b.id == ndlpdid.un.b.id) { 5194 if ((mydid.un.b.domain == matchdid.un.b.domain) && 5195 (mydid.un.b.area == matchdid.un.b.area)) { 5196 /* This code is supposed to match the ID 5197 * for a private loop device that is 5198 * connect to fl_port. But we need to 5199 * check that the port did not just go 5200 * from pt2pt to fabric or we could end 5201 * up matching ndlp->nlp_DID 000001 to 5202 * fabric DID 0x20101 5203 */ 5204 if ((ndlpdid.un.b.domain == 0) && 5205 (ndlpdid.un.b.area == 0)) { 5206 if (ndlpdid.un.b.id && 5207 vport->phba->fc_topology == 5208 LPFC_TOPOLOGY_LOOP) 5209 return 1; 5210 } 5211 return 0; 5212 } 5213 5214 matchdid.un.word = ndlp->nlp_DID; 5215 if ((mydid.un.b.domain == ndlpdid.un.b.domain) && 5216 (mydid.un.b.area == ndlpdid.un.b.area)) { 5217 if ((matchdid.un.b.domain == 0) && 5218 (matchdid.un.b.area == 0)) { 5219 if (matchdid.un.b.id) 5220 return 1; 5221 } 5222 } 5223 } 5224 return 0; 5225 } 5226 5227 /* Search for a nodelist entry */ 5228 static struct lpfc_nodelist * 5229 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5230 { 5231 struct lpfc_nodelist *ndlp; 5232 uint32_t data1; 5233 5234 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5235 if (lpfc_matchdid(vport, ndlp, did)) { 5236 data1 = (((uint32_t) ndlp->nlp_state << 24) | 5237 ((uint32_t) ndlp->nlp_xri << 16) | 5238 ((uint32_t) ndlp->nlp_type << 8) | 5239 ((uint32_t) ndlp->nlp_rpi & 0xff)); 5240 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5241 "0929 FIND node DID " 5242 "Data: x%p x%x x%x x%x %p\n", 5243 ndlp, ndlp->nlp_DID, 5244 ndlp->nlp_flag, data1, 5245 ndlp->active_rrqs_xri_bitmap); 5246 return ndlp; 5247 } 5248 } 5249 5250 /* FIND node did <did> NOT FOUND */ 5251 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5252 "0932 FIND node did x%x NOT FOUND.\n", did); 5253 return NULL; 5254 } 5255 5256 struct lpfc_nodelist * 5257 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) 5258 { 5259 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5260 struct lpfc_nodelist *ndlp; 5261 unsigned long iflags; 5262 5263 spin_lock_irqsave(shost->host_lock, iflags); 5264 ndlp = __lpfc_findnode_did(vport, did); 5265 spin_unlock_irqrestore(shost->host_lock, iflags); 5266 return ndlp; 5267 } 5268 5269 struct lpfc_nodelist * 5270 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 5271 { 5272 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5273 struct lpfc_nodelist *ndlp; 5274 5275 ndlp = lpfc_findnode_did(vport, did); 5276 if (!ndlp) { 5277 if (vport->phba->nvmet_support) 5278 return NULL; 5279 if ((vport->fc_flag & FC_RSCN_MODE) != 0 && 5280 lpfc_rscn_payload_check(vport, did) == 0) 5281 return NULL; 5282 ndlp = lpfc_nlp_init(vport, did); 5283 if (!ndlp) 5284 return NULL; 5285 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5286 spin_lock_irq(shost->host_lock); 5287 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5288 spin_unlock_irq(shost->host_lock); 5289 return ndlp; 5290 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5291 if (vport->phba->nvmet_support) 5292 return NULL; 5293 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE); 5294 if (!ndlp) 5295 return NULL; 5296 spin_lock_irq(shost->host_lock); 5297 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5298 spin_unlock_irq(shost->host_lock); 5299 return ndlp; 5300 } 5301 5302 /* The NVME Target does not want to actively manage an rport. 5303 * The goal is to allow the target to reset its state and clear 5304 * pending IO in preparation for the initiator to recover. 5305 */ 5306 if ((vport->fc_flag & FC_RSCN_MODE) && 5307 !(vport->fc_flag & FC_NDISC_ACTIVE)) { 5308 if (lpfc_rscn_payload_check(vport, did)) { 5309 5310 /* Since this node is marked for discovery, 5311 * delay timeout is not needed. 5312 */ 5313 lpfc_cancel_retry_delay_tmo(vport, ndlp); 5314 5315 /* NVME Target mode waits until rport is known to be 5316 * impacted by the RSCN before it transitions. No 5317 * active management - just go to NPR provided the 5318 * node had a valid login. 5319 */ 5320 if (vport->phba->nvmet_support) 5321 return ndlp; 5322 5323 /* If we've already received a PLOGI from this NPort 5324 * we don't need to try to discover it again. 5325 */ 5326 if (ndlp->nlp_flag & NLP_RCV_PLOGI) 5327 return NULL; 5328 5329 spin_lock_irq(shost->host_lock); 5330 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5331 spin_unlock_irq(shost->host_lock); 5332 } else 5333 ndlp = NULL; 5334 } else { 5335 /* If the initiator received a PLOGI from this NPort or if the 5336 * initiator is already in the process of discovery on it, 5337 * there's no need to try to discover it again. 5338 */ 5339 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || 5340 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5341 (!vport->phba->nvmet_support && 5342 ndlp->nlp_flag & NLP_RCV_PLOGI)) 5343 return NULL; 5344 5345 if (vport->phba->nvmet_support) 5346 return ndlp; 5347 5348 /* Moving to NPR state clears unsolicited flags and 5349 * allows for rediscovery 5350 */ 5351 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 5352 5353 spin_lock_irq(shost->host_lock); 5354 ndlp->nlp_flag |= NLP_NPR_2B_DISC; 5355 spin_unlock_irq(shost->host_lock); 5356 } 5357 return ndlp; 5358 } 5359 5360 /* Build a list of nodes to discover based on the loopmap */ 5361 void 5362 lpfc_disc_list_loopmap(struct lpfc_vport *vport) 5363 { 5364 struct lpfc_hba *phba = vport->phba; 5365 int j; 5366 uint32_t alpa, index; 5367 5368 if (!lpfc_is_link_up(phba)) 5369 return; 5370 5371 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) 5372 return; 5373 5374 /* Check for loop map present or not */ 5375 if (phba->alpa_map[0]) { 5376 for (j = 1; j <= phba->alpa_map[0]; j++) { 5377 alpa = phba->alpa_map[j]; 5378 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) 5379 continue; 5380 lpfc_setup_disc_node(vport, alpa); 5381 } 5382 } else { 5383 /* No alpamap, so try all alpa's */ 5384 for (j = 0; j < FC_MAXLOOP; j++) { 5385 /* If cfg_scan_down is set, start from highest 5386 * ALPA (0xef) to lowest (0x1). 5387 */ 5388 if (vport->cfg_scan_down) 5389 index = j; 5390 else 5391 index = FC_MAXLOOP - j - 1; 5392 alpa = lpfcAlpaArray[index]; 5393 if ((vport->fc_myDID & 0xff) == alpa) 5394 continue; 5395 lpfc_setup_disc_node(vport, alpa); 5396 } 5397 } 5398 return; 5399 } 5400 5401 /* SLI3 only */ 5402 void 5403 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) 5404 { 5405 LPFC_MBOXQ_t *mbox; 5406 struct lpfc_sli *psli = &phba->sli; 5407 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; 5408 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; 5409 int rc; 5410 5411 /* 5412 * if it's not a physical port or if we already send 5413 * clear_la then don't send it. 5414 */ 5415 if ((phba->link_state >= LPFC_CLEAR_LA) || 5416 (vport->port_type != LPFC_PHYSICAL_PORT) || 5417 (phba->sli_rev == LPFC_SLI_REV4)) 5418 return; 5419 5420 /* Link up discovery */ 5421 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { 5422 phba->link_state = LPFC_CLEAR_LA; 5423 lpfc_clear_la(phba, mbox); 5424 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; 5425 mbox->vport = vport; 5426 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 5427 if (rc == MBX_NOT_FINISHED) { 5428 mempool_free(mbox, phba->mbox_mem_pool); 5429 lpfc_disc_flush_list(vport); 5430 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5431 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; 5432 phba->link_state = LPFC_HBA_ERROR; 5433 } 5434 } 5435 } 5436 5437 /* Reg_vpi to tell firmware to resume normal operations */ 5438 void 5439 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5440 { 5441 LPFC_MBOXQ_t *regvpimbox; 5442 5443 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5444 if (regvpimbox) { 5445 lpfc_reg_vpi(vport, regvpimbox); 5446 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; 5447 regvpimbox->vport = vport; 5448 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) 5449 == MBX_NOT_FINISHED) { 5450 mempool_free(regvpimbox, phba->mbox_mem_pool); 5451 } 5452 } 5453 } 5454 5455 /* Start Link up / RSCN discovery on NPR nodes */ 5456 void 5457 lpfc_disc_start(struct lpfc_vport *vport) 5458 { 5459 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5460 struct lpfc_hba *phba = vport->phba; 5461 uint32_t num_sent; 5462 uint32_t clear_la_pending; 5463 5464 if (!lpfc_is_link_up(phba)) { 5465 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5466 "3315 Link is not up %x\n", 5467 phba->link_state); 5468 return; 5469 } 5470 5471 if (phba->link_state == LPFC_CLEAR_LA) 5472 clear_la_pending = 1; 5473 else 5474 clear_la_pending = 0; 5475 5476 if (vport->port_state < LPFC_VPORT_READY) 5477 vport->port_state = LPFC_DISC_AUTH; 5478 5479 lpfc_set_disctmo(vport); 5480 5481 vport->fc_prevDID = vport->fc_myDID; 5482 vport->num_disc_nodes = 0; 5483 5484 /* Start Discovery state <hba_state> */ 5485 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 5486 "0202 Start Discovery hba state x%x " 5487 "Data: x%x x%x x%x\n", 5488 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, 5489 vport->fc_adisc_cnt); 5490 5491 /* First do ADISCs - if any */ 5492 num_sent = lpfc_els_disc_adisc(vport); 5493 5494 if (num_sent) 5495 return; 5496 5497 /* Register the VPI for SLI3, NPIV only. */ 5498 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && 5499 !(vport->fc_flag & FC_PT2PT) && 5500 !(vport->fc_flag & FC_RSCN_MODE) && 5501 (phba->sli_rev < LPFC_SLI_REV4)) { 5502 lpfc_issue_clear_la(phba, vport); 5503 lpfc_issue_reg_vpi(phba, vport); 5504 return; 5505 } 5506 5507 /* 5508 * For SLI2, we need to set port_state to READY and continue 5509 * discovery. 5510 */ 5511 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) { 5512 /* If we get here, there is nothing to ADISC */ 5513 lpfc_issue_clear_la(phba, vport); 5514 5515 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { 5516 vport->num_disc_nodes = 0; 5517 /* go thru NPR nodes and issue ELS PLOGIs */ 5518 if (vport->fc_npr_cnt) 5519 lpfc_els_disc_plogi(vport); 5520 5521 if (!vport->num_disc_nodes) { 5522 spin_lock_irq(shost->host_lock); 5523 vport->fc_flag &= ~FC_NDISC_ACTIVE; 5524 spin_unlock_irq(shost->host_lock); 5525 lpfc_can_disctmo(vport); 5526 } 5527 } 5528 vport->port_state = LPFC_VPORT_READY; 5529 } else { 5530 /* Next do PLOGIs - if any */ 5531 num_sent = lpfc_els_disc_plogi(vport); 5532 5533 if (num_sent) 5534 return; 5535 5536 if (vport->fc_flag & FC_RSCN_MODE) { 5537 /* Check to see if more RSCNs came in while we 5538 * were processing this one. 5539 */ 5540 if ((vport->fc_rscn_id_cnt == 0) && 5541 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { 5542 spin_lock_irq(shost->host_lock); 5543 vport->fc_flag &= ~FC_RSCN_MODE; 5544 spin_unlock_irq(shost->host_lock); 5545 lpfc_can_disctmo(vport); 5546 } else 5547 lpfc_els_handle_rscn(vport); 5548 } 5549 } 5550 return; 5551 } 5552 5553 /* 5554 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS 5555 * ring the match the sppecified nodelist. 5556 */ 5557 static void 5558 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 5559 { 5560 LIST_HEAD(completions); 5561 IOCB_t *icmd; 5562 struct lpfc_iocbq *iocb, *next_iocb; 5563 struct lpfc_sli_ring *pring; 5564 5565 pring = lpfc_phba_elsring(phba); 5566 if (unlikely(!pring)) 5567 return; 5568 5569 /* Error matching iocb on txq or txcmplq 5570 * First check the txq. 5571 */ 5572 spin_lock_irq(&phba->hbalock); 5573 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 5574 if (iocb->context1 != ndlp) { 5575 continue; 5576 } 5577 icmd = &iocb->iocb; 5578 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || 5579 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { 5580 5581 list_move_tail(&iocb->list, &completions); 5582 } 5583 } 5584 5585 /* Next check the txcmplq */ 5586 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 5587 if (iocb->context1 != ndlp) { 5588 continue; 5589 } 5590 icmd = &iocb->iocb; 5591 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR || 5592 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) { 5593 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 5594 } 5595 } 5596 spin_unlock_irq(&phba->hbalock); 5597 5598 /* Cancel all the IOCBs from the completions list */ 5599 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 5600 IOERR_SLI_ABORTED); 5601 } 5602 5603 static void 5604 lpfc_disc_flush_list(struct lpfc_vport *vport) 5605 { 5606 struct lpfc_nodelist *ndlp, *next_ndlp; 5607 struct lpfc_hba *phba = vport->phba; 5608 5609 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { 5610 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5611 nlp_listp) { 5612 if (!NLP_CHK_NODE_ACT(ndlp)) 5613 continue; 5614 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || 5615 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { 5616 lpfc_free_tx(phba, ndlp); 5617 } 5618 } 5619 } 5620 } 5621 5622 void 5623 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) 5624 { 5625 lpfc_els_flush_rscn(vport); 5626 lpfc_els_flush_cmd(vport); 5627 lpfc_disc_flush_list(vport); 5628 } 5629 5630 /*****************************************************************************/ 5631 /* 5632 * NAME: lpfc_disc_timeout 5633 * 5634 * FUNCTION: Fibre Channel driver discovery timeout routine. 5635 * 5636 * EXECUTION ENVIRONMENT: interrupt only 5637 * 5638 * CALLED FROM: 5639 * Timer function 5640 * 5641 * RETURNS: 5642 * none 5643 */ 5644 /*****************************************************************************/ 5645 void 5646 lpfc_disc_timeout(struct timer_list *t) 5647 { 5648 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); 5649 struct lpfc_hba *phba = vport->phba; 5650 uint32_t tmo_posted; 5651 unsigned long flags = 0; 5652 5653 if (unlikely(!phba)) 5654 return; 5655 5656 spin_lock_irqsave(&vport->work_port_lock, flags); 5657 tmo_posted = vport->work_port_events & WORKER_DISC_TMO; 5658 if (!tmo_posted) 5659 vport->work_port_events |= WORKER_DISC_TMO; 5660 spin_unlock_irqrestore(&vport->work_port_lock, flags); 5661 5662 if (!tmo_posted) 5663 lpfc_worker_wake_up(phba); 5664 return; 5665 } 5666 5667 static void 5668 lpfc_disc_timeout_handler(struct lpfc_vport *vport) 5669 { 5670 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5671 struct lpfc_hba *phba = vport->phba; 5672 struct lpfc_sli *psli = &phba->sli; 5673 struct lpfc_nodelist *ndlp, *next_ndlp; 5674 LPFC_MBOXQ_t *initlinkmbox; 5675 int rc, clrlaerr = 0; 5676 5677 if (!(vport->fc_flag & FC_DISC_TMO)) 5678 return; 5679 5680 spin_lock_irq(shost->host_lock); 5681 vport->fc_flag &= ~FC_DISC_TMO; 5682 spin_unlock_irq(shost->host_lock); 5683 5684 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, 5685 "disc timeout: state:x%x rtry:x%x flg:x%x", 5686 vport->port_state, vport->fc_ns_retry, vport->fc_flag); 5687 5688 switch (vport->port_state) { 5689 5690 case LPFC_LOCAL_CFG_LINK: 5691 /* 5692 * port_state is identically LPFC_LOCAL_CFG_LINK while 5693 * waiting for FAN timeout 5694 */ 5695 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, 5696 "0221 FAN timeout\n"); 5697 5698 /* Start discovery by sending FLOGI, clean up old rpis */ 5699 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, 5700 nlp_listp) { 5701 if (!NLP_CHK_NODE_ACT(ndlp)) 5702 continue; 5703 if (ndlp->nlp_state != NLP_STE_NPR_NODE) 5704 continue; 5705 if (ndlp->nlp_type & NLP_FABRIC) { 5706 /* Clean up the ndlp on Fabric connections */ 5707 lpfc_drop_node(vport, ndlp); 5708 5709 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { 5710 /* Fail outstanding IO now since device 5711 * is marked for PLOGI. 5712 */ 5713 lpfc_unreg_rpi(vport, ndlp); 5714 } 5715 } 5716 if (vport->port_state != LPFC_FLOGI) { 5717 if (phba->sli_rev <= LPFC_SLI_REV3) 5718 lpfc_initial_flogi(vport); 5719 else 5720 lpfc_issue_init_vfi(vport); 5721 return; 5722 } 5723 break; 5724 5725 case LPFC_FDISC: 5726 case LPFC_FLOGI: 5727 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ 5728 /* Initial FLOGI timeout */ 5729 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5730 "0222 Initial %s timeout\n", 5731 vport->vpi ? "FDISC" : "FLOGI"); 5732 5733 /* Assume no Fabric and go on with discovery. 5734 * Check for outstanding ELS FLOGI to abort. 5735 */ 5736 5737 /* FLOGI failed, so just use loop map to make discovery list */ 5738 lpfc_disc_list_loopmap(vport); 5739 5740 /* Start discovery */ 5741 lpfc_disc_start(vport); 5742 break; 5743 5744 case LPFC_FABRIC_CFG_LINK: 5745 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for 5746 NameServer login */ 5747 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5748 "0223 Timeout while waiting for " 5749 "NameServer login\n"); 5750 /* Next look for NameServer ndlp */ 5751 ndlp = lpfc_findnode_did(vport, NameServer_DID); 5752 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) 5753 lpfc_els_abort(phba, ndlp); 5754 5755 /* ReStart discovery */ 5756 goto restart_disc; 5757 5758 case LPFC_NS_QRY: 5759 /* Check for wait for NameServer Rsp timeout */ 5760 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5761 "0224 NameServer Query timeout " 5762 "Data: x%x x%x\n", 5763 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5764 5765 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { 5766 /* Try it one more time */ 5767 vport->fc_ns_retry++; 5768 vport->gidft_inp = 0; 5769 rc = lpfc_issue_gidft(vport); 5770 if (rc == 0) 5771 break; 5772 } 5773 vport->fc_ns_retry = 0; 5774 5775 restart_disc: 5776 /* 5777 * Discovery is over. 5778 * set port_state to PORT_READY if SLI2. 5779 * cmpl_reg_vpi will set port_state to READY for SLI3. 5780 */ 5781 if (phba->sli_rev < LPFC_SLI_REV4) { 5782 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5783 lpfc_issue_reg_vpi(phba, vport); 5784 else { 5785 lpfc_issue_clear_la(phba, vport); 5786 vport->port_state = LPFC_VPORT_READY; 5787 } 5788 } 5789 5790 /* Setup and issue mailbox INITIALIZE LINK command */ 5791 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5792 if (!initlinkmbox) { 5793 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5794 "0206 Device Discovery " 5795 "completion error\n"); 5796 phba->link_state = LPFC_HBA_ERROR; 5797 break; 5798 } 5799 5800 lpfc_linkdown(phba); 5801 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, 5802 phba->cfg_link_speed); 5803 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; 5804 initlinkmbox->vport = vport; 5805 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 5806 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); 5807 lpfc_set_loopback_flag(phba); 5808 if (rc == MBX_NOT_FINISHED) 5809 mempool_free(initlinkmbox, phba->mbox_mem_pool); 5810 5811 break; 5812 5813 case LPFC_DISC_AUTH: 5814 /* Node Authentication timeout */ 5815 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5816 "0227 Node Authentication timeout\n"); 5817 lpfc_disc_flush_list(vport); 5818 5819 /* 5820 * set port_state to PORT_READY if SLI2. 5821 * cmpl_reg_vpi will set port_state to READY for SLI3. 5822 */ 5823 if (phba->sli_rev < LPFC_SLI_REV4) { 5824 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 5825 lpfc_issue_reg_vpi(phba, vport); 5826 else { /* NPIV Not enabled */ 5827 lpfc_issue_clear_la(phba, vport); 5828 vport->port_state = LPFC_VPORT_READY; 5829 } 5830 } 5831 break; 5832 5833 case LPFC_VPORT_READY: 5834 if (vport->fc_flag & FC_RSCN_MODE) { 5835 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5836 "0231 RSCN timeout Data: x%x " 5837 "x%x\n", 5838 vport->fc_ns_retry, LPFC_MAX_NS_RETRY); 5839 5840 /* Cleanup any outstanding ELS commands */ 5841 lpfc_els_flush_cmd(vport); 5842 5843 lpfc_els_flush_rscn(vport); 5844 lpfc_disc_flush_list(vport); 5845 } 5846 break; 5847 5848 default: 5849 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5850 "0273 Unexpected discovery timeout, " 5851 "vport State x%x\n", vport->port_state); 5852 break; 5853 } 5854 5855 switch (phba->link_state) { 5856 case LPFC_CLEAR_LA: 5857 /* CLEAR LA timeout */ 5858 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5859 "0228 CLEAR LA timeout\n"); 5860 clrlaerr = 1; 5861 break; 5862 5863 case LPFC_LINK_UP: 5864 lpfc_issue_clear_la(phba, vport); 5865 /* Drop thru */ 5866 case LPFC_LINK_UNKNOWN: 5867 case LPFC_WARM_START: 5868 case LPFC_INIT_START: 5869 case LPFC_INIT_MBX_CMDS: 5870 case LPFC_LINK_DOWN: 5871 case LPFC_HBA_ERROR: 5872 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 5873 "0230 Unexpected timeout, hba link " 5874 "state x%x\n", phba->link_state); 5875 clrlaerr = 1; 5876 break; 5877 5878 case LPFC_HBA_READY: 5879 break; 5880 } 5881 5882 if (clrlaerr) { 5883 lpfc_disc_flush_list(vport); 5884 if (phba->sli_rev != LPFC_SLI_REV4) { 5885 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= 5886 ~LPFC_STOP_IOCB_EVENT; 5887 psli->sli3_ring[LPFC_FCP_RING].flag &= 5888 ~LPFC_STOP_IOCB_EVENT; 5889 } 5890 vport->port_state = LPFC_VPORT_READY; 5891 } 5892 return; 5893 } 5894 5895 /* 5896 * This routine handles processing a NameServer REG_LOGIN mailbox 5897 * command upon completion. It is setup in the LPFC_MBOXQ 5898 * as the completion routine when the command is 5899 * handed off to the SLI layer. 5900 */ 5901 void 5902 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5903 { 5904 MAILBOX_t *mb = &pmb->u.mb; 5905 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); 5906 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; 5907 struct lpfc_vport *vport = pmb->vport; 5908 5909 pmb->ctx_buf = NULL; 5910 pmb->ctx_ndlp = NULL; 5911 5912 if (phba->sli_rev < LPFC_SLI_REV4) 5913 ndlp->nlp_rpi = mb->un.varWords[0]; 5914 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 5915 ndlp->nlp_type |= NLP_FABRIC; 5916 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 5917 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, 5918 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n", 5919 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, 5920 kref_read(&ndlp->kref), 5921 ndlp->nlp_usg_map, ndlp); 5922 /* 5923 * Start issuing Fabric-Device Management Interface (FDMI) command to 5924 * 0xfffffa (FDMI well known port). 5925 * DHBA -> DPRT -> RHBA -> RPA (physical port) 5926 * DPRT -> RPRT (vports) 5927 */ 5928 if (vport->port_type == LPFC_PHYSICAL_PORT) 5929 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); 5930 else 5931 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); 5932 5933 5934 /* decrement the node reference count held for this callback 5935 * function. 5936 */ 5937 lpfc_nlp_put(ndlp); 5938 lpfc_mbuf_free(phba, mp->virt, mp->phys); 5939 kfree(mp); 5940 mempool_free(pmb, phba->mbox_mem_pool); 5941 5942 return; 5943 } 5944 5945 static int 5946 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) 5947 { 5948 uint16_t *rpi = param; 5949 5950 /* check for active node */ 5951 if (!NLP_CHK_NODE_ACT(ndlp)) 5952 return 0; 5953 5954 return ndlp->nlp_rpi == *rpi; 5955 } 5956 5957 static int 5958 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) 5959 { 5960 return memcmp(&ndlp->nlp_portname, param, 5961 sizeof(ndlp->nlp_portname)) == 0; 5962 } 5963 5964 static struct lpfc_nodelist * 5965 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) 5966 { 5967 struct lpfc_nodelist *ndlp; 5968 5969 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5970 if (filter(ndlp, param)) { 5971 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5972 "3185 FIND node filter %p DID " 5973 "ndlp %p did x%x flg x%x st x%x " 5974 "xri x%x type x%x rpi x%x\n", 5975 filter, ndlp, ndlp->nlp_DID, 5976 ndlp->nlp_flag, ndlp->nlp_state, 5977 ndlp->nlp_xri, ndlp->nlp_type, 5978 ndlp->nlp_rpi); 5979 return ndlp; 5980 } 5981 } 5982 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 5983 "3186 FIND node filter %p NOT FOUND.\n", filter); 5984 return NULL; 5985 } 5986 5987 /* 5988 * This routine looks up the ndlp lists for the given RPI. If rpi found it 5989 * returns the node list element pointer else return NULL. 5990 */ 5991 struct lpfc_nodelist * 5992 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 5993 { 5994 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); 5995 } 5996 5997 /* 5998 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it 5999 * returns the node element list pointer else return NULL. 6000 */ 6001 struct lpfc_nodelist * 6002 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) 6003 { 6004 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6005 struct lpfc_nodelist *ndlp; 6006 6007 spin_lock_irq(shost->host_lock); 6008 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); 6009 spin_unlock_irq(shost->host_lock); 6010 return ndlp; 6011 } 6012 6013 /* 6014 * This routine looks up the ndlp lists for the given RPI. If the rpi 6015 * is found, the routine returns the node element list pointer else 6016 * return NULL. 6017 */ 6018 struct lpfc_nodelist * 6019 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) 6020 { 6021 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6022 struct lpfc_nodelist *ndlp; 6023 6024 spin_lock_irq(shost->host_lock); 6025 ndlp = __lpfc_findnode_rpi(vport, rpi); 6026 spin_unlock_irq(shost->host_lock); 6027 return ndlp; 6028 } 6029 6030 /** 6031 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier 6032 * @phba: pointer to lpfc hba data structure. 6033 * @vpi: the physical host virtual N_Port identifier. 6034 * 6035 * This routine finds a vport on a HBA (referred by @phba) through a 6036 * @vpi. The function walks the HBA's vport list and returns the address 6037 * of the vport with the matching @vpi. 6038 * 6039 * Return code 6040 * NULL - No vport with the matching @vpi found 6041 * Otherwise - Address to the vport with the matching @vpi. 6042 **/ 6043 struct lpfc_vport * 6044 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 6045 { 6046 struct lpfc_vport *vport; 6047 unsigned long flags; 6048 int i = 0; 6049 6050 /* The physical ports are always vpi 0 - translate is unnecessary. */ 6051 if (vpi > 0) { 6052 /* 6053 * Translate the physical vpi to the logical vpi. The 6054 * vport stores the logical vpi. 6055 */ 6056 for (i = 0; i < phba->max_vpi; i++) { 6057 if (vpi == phba->vpi_ids[i]) 6058 break; 6059 } 6060 6061 if (i >= phba->max_vpi) { 6062 lpfc_printf_log(phba, KERN_ERR, LOG_ELS, 6063 "2936 Could not find Vport mapped " 6064 "to vpi %d\n", vpi); 6065 return NULL; 6066 } 6067 } 6068 6069 spin_lock_irqsave(&phba->port_list_lock, flags); 6070 list_for_each_entry(vport, &phba->port_list, listentry) { 6071 if (vport->vpi == i) { 6072 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6073 return vport; 6074 } 6075 } 6076 spin_unlock_irqrestore(&phba->port_list_lock, flags); 6077 return NULL; 6078 } 6079 6080 struct lpfc_nodelist * 6081 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) 6082 { 6083 struct lpfc_nodelist *ndlp; 6084 int rpi = LPFC_RPI_ALLOC_ERROR; 6085 6086 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6087 rpi = lpfc_sli4_alloc_rpi(vport->phba); 6088 if (rpi == LPFC_RPI_ALLOC_ERROR) 6089 return NULL; 6090 } 6091 6092 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); 6093 if (!ndlp) { 6094 if (vport->phba->sli_rev == LPFC_SLI_REV4) 6095 lpfc_sli4_free_rpi(vport->phba, rpi); 6096 return NULL; 6097 } 6098 6099 memset(ndlp, 0, sizeof (struct lpfc_nodelist)); 6100 6101 lpfc_initialize_node(vport, ndlp, did); 6102 INIT_LIST_HEAD(&ndlp->nlp_listp); 6103 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 6104 ndlp->nlp_rpi = rpi; 6105 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, 6106 "0007 rpi:%x DID:%x flg:%x refcnt:%d " 6107 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, 6108 ndlp->nlp_flag, 6109 kref_read(&ndlp->kref), 6110 ndlp->nlp_usg_map, ndlp); 6111 6112 ndlp->active_rrqs_xri_bitmap = 6113 mempool_alloc(vport->phba->active_rrq_pool, 6114 GFP_KERNEL); 6115 if (ndlp->active_rrqs_xri_bitmap) 6116 memset(ndlp->active_rrqs_xri_bitmap, 0, 6117 ndlp->phba->cfg_rrq_xri_bitmap_sz); 6118 } 6119 6120 6121 6122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 6123 "node init: did:x%x", 6124 ndlp->nlp_DID, 0, 0); 6125 6126 return ndlp; 6127 } 6128 6129 /* This routine releases all resources associated with a specifc NPort's ndlp 6130 * and mempool_free's the nodelist. 6131 */ 6132 static void 6133 lpfc_nlp_release(struct kref *kref) 6134 { 6135 struct lpfc_hba *phba; 6136 unsigned long flags; 6137 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, 6138 kref); 6139 6140 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6141 "node release: did:x%x flg:x%x type:x%x", 6142 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); 6143 6144 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 6145 "0279 lpfc_nlp_release: ndlp:x%p did %x " 6146 "usgmap:x%x refcnt:%d rpi:%x\n", 6147 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, 6148 kref_read(&ndlp->kref), ndlp->nlp_rpi); 6149 6150 /* remove ndlp from action. */ 6151 lpfc_nlp_remove(ndlp->vport, ndlp); 6152 6153 /* clear the ndlp active flag for all release cases */ 6154 phba = ndlp->phba; 6155 spin_lock_irqsave(&phba->ndlp_lock, flags); 6156 NLP_CLR_NODE_ACT(ndlp); 6157 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6158 if (phba->sli_rev == LPFC_SLI_REV4) 6159 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 6160 6161 /* free ndlp memory for final ndlp release */ 6162 if (NLP_CHK_FREE_REQ(ndlp)) { 6163 kfree(ndlp->lat_data); 6164 if (phba->sli_rev == LPFC_SLI_REV4) 6165 mempool_free(ndlp->active_rrqs_xri_bitmap, 6166 ndlp->phba->active_rrq_pool); 6167 mempool_free(ndlp, ndlp->phba->nlp_mem_pool); 6168 } 6169 } 6170 6171 /* This routine bumps the reference count for a ndlp structure to ensure 6172 * that one discovery thread won't free a ndlp while another discovery thread 6173 * is using it. 6174 */ 6175 struct lpfc_nodelist * 6176 lpfc_nlp_get(struct lpfc_nodelist *ndlp) 6177 { 6178 struct lpfc_hba *phba; 6179 unsigned long flags; 6180 6181 if (ndlp) { 6182 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6183 "node get: did:x%x flg:x%x refcnt:x%x", 6184 ndlp->nlp_DID, ndlp->nlp_flag, 6185 kref_read(&ndlp->kref)); 6186 /* The check of ndlp usage to prevent incrementing the 6187 * ndlp reference count that is in the process of being 6188 * released. 6189 */ 6190 phba = ndlp->phba; 6191 spin_lock_irqsave(&phba->ndlp_lock, flags); 6192 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { 6193 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6194 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6195 "0276 lpfc_nlp_get: ndlp:x%p " 6196 "usgmap:x%x refcnt:%d\n", 6197 (void *)ndlp, ndlp->nlp_usg_map, 6198 kref_read(&ndlp->kref)); 6199 return NULL; 6200 } else 6201 kref_get(&ndlp->kref); 6202 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6203 } 6204 return ndlp; 6205 } 6206 6207 /* This routine decrements the reference count for a ndlp structure. If the 6208 * count goes to 0, this indicates the the associated nodelist should be 6209 * freed. Returning 1 indicates the ndlp resource has been released; on the 6210 * other hand, returning 0 indicates the ndlp resource has not been released 6211 * yet. 6212 */ 6213 int 6214 lpfc_nlp_put(struct lpfc_nodelist *ndlp) 6215 { 6216 struct lpfc_hba *phba; 6217 unsigned long flags; 6218 6219 if (!ndlp) 6220 return 1; 6221 6222 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6223 "node put: did:x%x flg:x%x refcnt:x%x", 6224 ndlp->nlp_DID, ndlp->nlp_flag, 6225 kref_read(&ndlp->kref)); 6226 phba = ndlp->phba; 6227 spin_lock_irqsave(&phba->ndlp_lock, flags); 6228 /* Check the ndlp memory free acknowledge flag to avoid the 6229 * possible race condition that kref_put got invoked again 6230 * after previous one has done ndlp memory free. 6231 */ 6232 if (NLP_CHK_FREE_ACK(ndlp)) { 6233 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6234 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6235 "0274 lpfc_nlp_put: ndlp:x%p " 6236 "usgmap:x%x refcnt:%d\n", 6237 (void *)ndlp, ndlp->nlp_usg_map, 6238 kref_read(&ndlp->kref)); 6239 return 1; 6240 } 6241 /* Check the ndlp inactivate log flag to avoid the possible 6242 * race condition that kref_put got invoked again after ndlp 6243 * is already in inactivating state. 6244 */ 6245 if (NLP_CHK_IACT_REQ(ndlp)) { 6246 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6247 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, 6248 "0275 lpfc_nlp_put: ndlp:x%p " 6249 "usgmap:x%x refcnt:%d\n", 6250 (void *)ndlp, ndlp->nlp_usg_map, 6251 kref_read(&ndlp->kref)); 6252 return 1; 6253 } 6254 /* For last put, mark the ndlp usage flags to make sure no 6255 * other kref_get and kref_put on the same ndlp shall get 6256 * in between the process when the final kref_put has been 6257 * invoked on this ndlp. 6258 */ 6259 if (kref_read(&ndlp->kref) == 1) { 6260 /* Indicate ndlp is put to inactive state. */ 6261 NLP_SET_IACT_REQ(ndlp); 6262 /* Acknowledge ndlp memory free has been seen. */ 6263 if (NLP_CHK_FREE_REQ(ndlp)) 6264 NLP_SET_FREE_ACK(ndlp); 6265 } 6266 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 6267 /* Note, the kref_put returns 1 when decrementing a reference 6268 * count that was 1, it invokes the release callback function, 6269 * but it still left the reference count as 1 (not actually 6270 * performs the last decrementation). Otherwise, it actually 6271 * decrements the reference count and returns 0. 6272 */ 6273 return kref_put(&ndlp->kref, lpfc_nlp_release); 6274 } 6275 6276 /* This routine free's the specified nodelist if it is not in use 6277 * by any other discovery thread. This routine returns 1 if the 6278 * ndlp has been freed. A return value of 0 indicates the ndlp is 6279 * not yet been released. 6280 */ 6281 int 6282 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) 6283 { 6284 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, 6285 "node not used: did:x%x flg:x%x refcnt:x%x", 6286 ndlp->nlp_DID, ndlp->nlp_flag, 6287 kref_read(&ndlp->kref)); 6288 if (kref_read(&ndlp->kref) == 1) 6289 if (lpfc_nlp_put(ndlp)) 6290 return 1; 6291 return 0; 6292 } 6293 6294 /** 6295 * lpfc_fcf_inuse - Check if FCF can be unregistered. 6296 * @phba: Pointer to hba context object. 6297 * 6298 * This function iterate through all FC nodes associated 6299 * will all vports to check if there is any node with 6300 * fc_rports associated with it. If there is an fc_rport 6301 * associated with the node, then the node is either in 6302 * discovered state or its devloss_timer is pending. 6303 */ 6304 static int 6305 lpfc_fcf_inuse(struct lpfc_hba *phba) 6306 { 6307 struct lpfc_vport **vports; 6308 int i, ret = 0; 6309 struct lpfc_nodelist *ndlp; 6310 struct Scsi_Host *shost; 6311 6312 vports = lpfc_create_vport_work_array(phba); 6313 6314 /* If driver cannot allocate memory, indicate fcf is in use */ 6315 if (!vports) 6316 return 1; 6317 6318 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6319 shost = lpfc_shost_from_vport(vports[i]); 6320 spin_lock_irq(shost->host_lock); 6321 /* 6322 * IF the CVL_RCVD bit is not set then we have sent the 6323 * flogi. 6324 * If dev_loss fires while we are waiting we do not want to 6325 * unreg the fcf. 6326 */ 6327 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { 6328 spin_unlock_irq(shost->host_lock); 6329 ret = 1; 6330 goto out; 6331 } 6332 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { 6333 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && 6334 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 6335 ret = 1; 6336 spin_unlock_irq(shost->host_lock); 6337 goto out; 6338 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 6339 ret = 1; 6340 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 6341 "2624 RPI %x DID %x flag %x " 6342 "still logged in\n", 6343 ndlp->nlp_rpi, ndlp->nlp_DID, 6344 ndlp->nlp_flag); 6345 } 6346 } 6347 spin_unlock_irq(shost->host_lock); 6348 } 6349 out: 6350 lpfc_destroy_vport_work_array(phba, vports); 6351 return ret; 6352 } 6353 6354 /** 6355 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. 6356 * @phba: Pointer to hba context object. 6357 * @mboxq: Pointer to mailbox object. 6358 * 6359 * This function frees memory associated with the mailbox command. 6360 */ 6361 void 6362 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6363 { 6364 struct lpfc_vport *vport = mboxq->vport; 6365 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6366 6367 if (mboxq->u.mb.mbxStatus) { 6368 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6369 "2555 UNREG_VFI mbxStatus error x%x " 6370 "HBA state x%x\n", 6371 mboxq->u.mb.mbxStatus, vport->port_state); 6372 } 6373 spin_lock_irq(shost->host_lock); 6374 phba->pport->fc_flag &= ~FC_VFI_REGISTERED; 6375 spin_unlock_irq(shost->host_lock); 6376 mempool_free(mboxq, phba->mbox_mem_pool); 6377 return; 6378 } 6379 6380 /** 6381 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. 6382 * @phba: Pointer to hba context object. 6383 * @mboxq: Pointer to mailbox object. 6384 * 6385 * This function frees memory associated with the mailbox command. 6386 */ 6387 static void 6388 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 6389 { 6390 struct lpfc_vport *vport = mboxq->vport; 6391 6392 if (mboxq->u.mb.mbxStatus) { 6393 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6394 "2550 UNREG_FCFI mbxStatus error x%x " 6395 "HBA state x%x\n", 6396 mboxq->u.mb.mbxStatus, vport->port_state); 6397 } 6398 mempool_free(mboxq, phba->mbox_mem_pool); 6399 return; 6400 } 6401 6402 /** 6403 * lpfc_unregister_fcf_prep - Unregister fcf record preparation 6404 * @phba: Pointer to hba context object. 6405 * 6406 * This function prepare the HBA for unregistering the currently registered 6407 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and 6408 * VFIs. 6409 */ 6410 int 6411 lpfc_unregister_fcf_prep(struct lpfc_hba *phba) 6412 { 6413 struct lpfc_vport **vports; 6414 struct lpfc_nodelist *ndlp; 6415 struct Scsi_Host *shost; 6416 int i = 0, rc; 6417 6418 /* Unregister RPIs */ 6419 if (lpfc_fcf_inuse(phba)) 6420 lpfc_unreg_hba_rpis(phba); 6421 6422 /* At this point, all discovery is aborted */ 6423 phba->pport->port_state = LPFC_VPORT_UNKNOWN; 6424 6425 /* Unregister VPIs */ 6426 vports = lpfc_create_vport_work_array(phba); 6427 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) 6428 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 6429 /* Stop FLOGI/FDISC retries */ 6430 ndlp = lpfc_findnode_did(vports[i], Fabric_DID); 6431 if (ndlp) 6432 lpfc_cancel_retry_delay_tmo(vports[i], ndlp); 6433 lpfc_cleanup_pending_mbox(vports[i]); 6434 if (phba->sli_rev == LPFC_SLI_REV4) 6435 lpfc_sli4_unreg_all_rpis(vports[i]); 6436 lpfc_mbx_unreg_vpi(vports[i]); 6437 shost = lpfc_shost_from_vport(vports[i]); 6438 spin_lock_irq(shost->host_lock); 6439 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6440 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 6441 spin_unlock_irq(shost->host_lock); 6442 } 6443 lpfc_destroy_vport_work_array(phba, vports); 6444 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { 6445 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); 6446 if (ndlp) 6447 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 6448 lpfc_cleanup_pending_mbox(phba->pport); 6449 if (phba->sli_rev == LPFC_SLI_REV4) 6450 lpfc_sli4_unreg_all_rpis(phba->pport); 6451 lpfc_mbx_unreg_vpi(phba->pport); 6452 shost = lpfc_shost_from_vport(phba->pport); 6453 spin_lock_irq(shost->host_lock); 6454 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 6455 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; 6456 spin_unlock_irq(shost->host_lock); 6457 } 6458 6459 /* Cleanup any outstanding ELS commands */ 6460 lpfc_els_flush_all_cmd(phba); 6461 6462 /* Unregister the physical port VFI */ 6463 rc = lpfc_issue_unreg_vfi(phba->pport); 6464 return rc; 6465 } 6466 6467 /** 6468 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record 6469 * @phba: Pointer to hba context object. 6470 * 6471 * This function issues synchronous unregister FCF mailbox command to HBA to 6472 * unregister the currently registered FCF record. The driver does not reset 6473 * the driver FCF usage state flags. 6474 * 6475 * Return 0 if successfully issued, none-zero otherwise. 6476 */ 6477 int 6478 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) 6479 { 6480 LPFC_MBOXQ_t *mbox; 6481 int rc; 6482 6483 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6484 if (!mbox) { 6485 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6486 "2551 UNREG_FCFI mbox allocation failed" 6487 "HBA state x%x\n", phba->pport->port_state); 6488 return -ENOMEM; 6489 } 6490 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); 6491 mbox->vport = phba->pport; 6492 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; 6493 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 6494 6495 if (rc == MBX_NOT_FINISHED) { 6496 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6497 "2552 Unregister FCFI command failed rc x%x " 6498 "HBA state x%x\n", 6499 rc, phba->pport->port_state); 6500 return -EINVAL; 6501 } 6502 return 0; 6503 } 6504 6505 /** 6506 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan 6507 * @phba: Pointer to hba context object. 6508 * 6509 * This function unregisters the currently reigstered FCF. This function 6510 * also tries to find another FCF for discovery by rescan the HBA FCF table. 6511 */ 6512 void 6513 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) 6514 { 6515 int rc; 6516 6517 /* Preparation for unregistering fcf */ 6518 rc = lpfc_unregister_fcf_prep(phba); 6519 if (rc) { 6520 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6521 "2748 Failed to prepare for unregistering " 6522 "HBA's FCF record: rc=%d\n", rc); 6523 return; 6524 } 6525 6526 /* Now, unregister FCF record and reset HBA FCF state */ 6527 rc = lpfc_sli4_unregister_fcf(phba); 6528 if (rc) 6529 return; 6530 /* Reset HBA FCF states after successful unregister FCF */ 6531 phba->fcf.fcf_flag = 0; 6532 phba->fcf.current_rec.flag = 0; 6533 6534 /* 6535 * If driver is not unloading, check if there is any other 6536 * FCF record that can be used for discovery. 6537 */ 6538 if ((phba->pport->load_flag & FC_UNLOADING) || 6539 (phba->link_state < LPFC_LINK_UP)) 6540 return; 6541 6542 /* This is considered as the initial FCF discovery scan */ 6543 spin_lock_irq(&phba->hbalock); 6544 phba->fcf.fcf_flag |= FCF_INIT_DISC; 6545 spin_unlock_irq(&phba->hbalock); 6546 6547 /* Reset FCF roundrobin bmask for new discovery */ 6548 lpfc_sli4_clear_fcf_rr_bmask(phba); 6549 6550 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 6551 6552 if (rc) { 6553 spin_lock_irq(&phba->hbalock); 6554 phba->fcf.fcf_flag &= ~FCF_INIT_DISC; 6555 spin_unlock_irq(&phba->hbalock); 6556 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, 6557 "2553 lpfc_unregister_unused_fcf failed " 6558 "to read FCF record HBA state x%x\n", 6559 phba->pport->port_state); 6560 } 6561 } 6562 6563 /** 6564 * lpfc_unregister_fcf - Unregister the currently registered fcf record 6565 * @phba: Pointer to hba context object. 6566 * 6567 * This function just unregisters the currently reigstered FCF. It does not 6568 * try to find another FCF for discovery. 6569 */ 6570 void 6571 lpfc_unregister_fcf(struct lpfc_hba *phba) 6572 { 6573 int rc; 6574 6575 /* Preparation for unregistering fcf */ 6576 rc = lpfc_unregister_fcf_prep(phba); 6577 if (rc) { 6578 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 6579 "2749 Failed to prepare for unregistering " 6580 "HBA's FCF record: rc=%d\n", rc); 6581 return; 6582 } 6583 6584 /* Now, unregister FCF record and reset HBA FCF state */ 6585 rc = lpfc_sli4_unregister_fcf(phba); 6586 if (rc) 6587 return; 6588 /* Set proper HBA FCF states after successful unregister FCF */ 6589 spin_lock_irq(&phba->hbalock); 6590 phba->fcf.fcf_flag &= ~FCF_REGISTERED; 6591 spin_unlock_irq(&phba->hbalock); 6592 } 6593 6594 /** 6595 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. 6596 * @phba: Pointer to hba context object. 6597 * 6598 * This function check if there are any connected remote port for the FCF and 6599 * if all the devices are disconnected, this function unregister FCFI. 6600 * This function also tries to use another FCF for discovery. 6601 */ 6602 void 6603 lpfc_unregister_unused_fcf(struct lpfc_hba *phba) 6604 { 6605 /* 6606 * If HBA is not running in FIP mode, if HBA does not support 6607 * FCoE, if FCF discovery is ongoing, or if FCF has not been 6608 * registered, do nothing. 6609 */ 6610 spin_lock_irq(&phba->hbalock); 6611 if (!(phba->hba_flag & HBA_FCOE_MODE) || 6612 !(phba->fcf.fcf_flag & FCF_REGISTERED) || 6613 !(phba->hba_flag & HBA_FIP_SUPPORT) || 6614 (phba->fcf.fcf_flag & FCF_DISCOVERY) || 6615 (phba->pport->port_state == LPFC_FLOGI)) { 6616 spin_unlock_irq(&phba->hbalock); 6617 return; 6618 } 6619 spin_unlock_irq(&phba->hbalock); 6620 6621 if (lpfc_fcf_inuse(phba)) 6622 return; 6623 6624 lpfc_unregister_fcf_rescan(phba); 6625 } 6626 6627 /** 6628 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. 6629 * @phba: Pointer to hba context object. 6630 * @buff: Buffer containing the FCF connection table as in the config 6631 * region. 6632 * This function create driver data structure for the FCF connection 6633 * record table read from config region 23. 6634 */ 6635 static void 6636 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, 6637 uint8_t *buff) 6638 { 6639 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6640 struct lpfc_fcf_conn_hdr *conn_hdr; 6641 struct lpfc_fcf_conn_rec *conn_rec; 6642 uint32_t record_count; 6643 int i; 6644 6645 /* Free the current connect table */ 6646 list_for_each_entry_safe(conn_entry, next_conn_entry, 6647 &phba->fcf_conn_rec_list, list) { 6648 list_del_init(&conn_entry->list); 6649 kfree(conn_entry); 6650 } 6651 6652 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; 6653 record_count = conn_hdr->length * sizeof(uint32_t)/ 6654 sizeof(struct lpfc_fcf_conn_rec); 6655 6656 conn_rec = (struct lpfc_fcf_conn_rec *) 6657 (buff + sizeof(struct lpfc_fcf_conn_hdr)); 6658 6659 for (i = 0; i < record_count; i++) { 6660 if (!(conn_rec[i].flags & FCFCNCT_VALID)) 6661 continue; 6662 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), 6663 GFP_KERNEL); 6664 if (!conn_entry) { 6665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6666 "2566 Failed to allocate connection" 6667 " table entry\n"); 6668 return; 6669 } 6670 6671 memcpy(&conn_entry->conn_rec, &conn_rec[i], 6672 sizeof(struct lpfc_fcf_conn_rec)); 6673 list_add_tail(&conn_entry->list, 6674 &phba->fcf_conn_rec_list); 6675 } 6676 6677 if (!list_empty(&phba->fcf_conn_rec_list)) { 6678 i = 0; 6679 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, 6680 list) { 6681 conn_rec = &conn_entry->conn_rec; 6682 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6683 "3345 FCF connection list rec[%02d]: " 6684 "flags:x%04x, vtag:x%04x, " 6685 "fabric_name:x%02x:%02x:%02x:%02x:" 6686 "%02x:%02x:%02x:%02x, " 6687 "switch_name:x%02x:%02x:%02x:%02x:" 6688 "%02x:%02x:%02x:%02x\n", i++, 6689 conn_rec->flags, conn_rec->vlan_tag, 6690 conn_rec->fabric_name[0], 6691 conn_rec->fabric_name[1], 6692 conn_rec->fabric_name[2], 6693 conn_rec->fabric_name[3], 6694 conn_rec->fabric_name[4], 6695 conn_rec->fabric_name[5], 6696 conn_rec->fabric_name[6], 6697 conn_rec->fabric_name[7], 6698 conn_rec->switch_name[0], 6699 conn_rec->switch_name[1], 6700 conn_rec->switch_name[2], 6701 conn_rec->switch_name[3], 6702 conn_rec->switch_name[4], 6703 conn_rec->switch_name[5], 6704 conn_rec->switch_name[6], 6705 conn_rec->switch_name[7]); 6706 } 6707 } 6708 } 6709 6710 /** 6711 * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. 6712 * @phba: Pointer to hba context object. 6713 * @buff: Buffer containing the FCoE parameter data structure. 6714 * 6715 * This function update driver data structure with config 6716 * parameters read from config region 23. 6717 */ 6718 static void 6719 lpfc_read_fcoe_param(struct lpfc_hba *phba, 6720 uint8_t *buff) 6721 { 6722 struct lpfc_fip_param_hdr *fcoe_param_hdr; 6723 struct lpfc_fcoe_params *fcoe_param; 6724 6725 fcoe_param_hdr = (struct lpfc_fip_param_hdr *) 6726 buff; 6727 fcoe_param = (struct lpfc_fcoe_params *) 6728 (buff + sizeof(struct lpfc_fip_param_hdr)); 6729 6730 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || 6731 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) 6732 return; 6733 6734 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { 6735 phba->valid_vlan = 1; 6736 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & 6737 0xFFF; 6738 } 6739 6740 phba->fc_map[0] = fcoe_param->fc_map[0]; 6741 phba->fc_map[1] = fcoe_param->fc_map[1]; 6742 phba->fc_map[2] = fcoe_param->fc_map[2]; 6743 return; 6744 } 6745 6746 /** 6747 * lpfc_get_rec_conf23 - Get a record type in config region data. 6748 * @buff: Buffer containing config region 23 data. 6749 * @size: Size of the data buffer. 6750 * @rec_type: Record type to be searched. 6751 * 6752 * This function searches config region data to find the beginning 6753 * of the record specified by record_type. If record found, this 6754 * function return pointer to the record else return NULL. 6755 */ 6756 static uint8_t * 6757 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) 6758 { 6759 uint32_t offset = 0, rec_length; 6760 6761 if ((buff[0] == LPFC_REGION23_LAST_REC) || 6762 (size < sizeof(uint32_t))) 6763 return NULL; 6764 6765 rec_length = buff[offset + 1]; 6766 6767 /* 6768 * One TLV record has one word header and number of data words 6769 * specified in the rec_length field of the record header. 6770 */ 6771 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) 6772 <= size) { 6773 if (buff[offset] == rec_type) 6774 return &buff[offset]; 6775 6776 if (buff[offset] == LPFC_REGION23_LAST_REC) 6777 return NULL; 6778 6779 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); 6780 rec_length = buff[offset + 1]; 6781 } 6782 return NULL; 6783 } 6784 6785 /** 6786 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. 6787 * @phba: Pointer to lpfc_hba data structure. 6788 * @buff: Buffer containing config region 23 data. 6789 * @size: Size of the data buffer. 6790 * 6791 * This function parses the FCoE config parameters in config region 23 and 6792 * populate driver data structure with the parameters. 6793 */ 6794 void 6795 lpfc_parse_fcoe_conf(struct lpfc_hba *phba, 6796 uint8_t *buff, 6797 uint32_t size) 6798 { 6799 uint32_t offset = 0; 6800 uint8_t *rec_ptr; 6801 6802 /* 6803 * If data size is less than 2 words signature and version cannot be 6804 * verified. 6805 */ 6806 if (size < 2*sizeof(uint32_t)) 6807 return; 6808 6809 /* Check the region signature first */ 6810 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { 6811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6812 "2567 Config region 23 has bad signature\n"); 6813 return; 6814 } 6815 6816 offset += 4; 6817 6818 /* Check the data structure version */ 6819 if (buff[offset] != LPFC_REGION23_VERSION) { 6820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6821 "2568 Config region 23 has bad version\n"); 6822 return; 6823 } 6824 offset += 4; 6825 6826 /* Read FCoE param record */ 6827 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6828 size - offset, FCOE_PARAM_TYPE); 6829 if (rec_ptr) 6830 lpfc_read_fcoe_param(phba, rec_ptr); 6831 6832 /* Read FCF connection table */ 6833 rec_ptr = lpfc_get_rec_conf23(&buff[offset], 6834 size - offset, FCOE_CONN_TBL_TYPE); 6835 if (rec_ptr) 6836 lpfc_read_fcf_conn_tbl(phba, rec_ptr); 6837 6838 } 6839