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1/*******************************************************************2 * This file is part of the Emulex Linux Device Driver for *3 * Fibre Channel Host Bus Adapters. *4 * Copyright (C) 2017-2024 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/dma-mapping.h>27#include <linux/idr.h>28#include <linux/interrupt.h>29#include <linux/kthread.h>30#include <linux/pci.h>31#include <linux/slab.h>32#include <linux/spinlock.h>33#include <linux/sched/signal.h>34 35#include <scsi/scsi.h>36#include <scsi/scsi_device.h>37#include <scsi/scsi_host.h>38#include <scsi/scsi_transport_fc.h>39 40#include "lpfc_hw4.h"41#include "lpfc_hw.h"42#include "lpfc_sli.h"43#include "lpfc_sli4.h"44#include "lpfc_nl.h"45#include "lpfc_disc.h"46#include "lpfc_scsi.h"47#include "lpfc.h"48#include "lpfc_logmsg.h"49#include "lpfc_crtn.h"50#include "lpfc_version.h"51#include "lpfc_vport.h"52 53inline void lpfc_vport_set_state(struct lpfc_vport *vport,54 enum fc_vport_state new_state)55{56 struct fc_vport *fc_vport = vport->fc_vport;57 58 if (fc_vport) {59 /*60 * When the transport defines fc_vport_set state we will replace61 * this code with the following line62 */63 /* fc_vport_set_state(fc_vport, new_state); */64 if (new_state != FC_VPORT_INITIALIZING)65 fc_vport->vport_last_state = fc_vport->vport_state;66 fc_vport->vport_state = new_state;67 }68 69 /* for all the error states we will set the invternal state to FAILED */70 switch (new_state) {71 case FC_VPORT_NO_FABRIC_SUPP:72 case FC_VPORT_NO_FABRIC_RSCS:73 case FC_VPORT_FABRIC_LOGOUT:74 case FC_VPORT_FABRIC_REJ_WWN:75 case FC_VPORT_FAILED:76 vport->port_state = LPFC_VPORT_FAILED;77 break;78 case FC_VPORT_LINKDOWN:79 vport->port_state = LPFC_VPORT_UNKNOWN;80 break;81 default:82 /* do nothing */83 break;84 }85}86 87int88lpfc_alloc_vpi(struct lpfc_hba *phba)89{90 unsigned long vpi;91 92 spin_lock_irq(&phba->hbalock);93 /* Start at bit 1 because vpi zero is reserved for the physical port */94 vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1);95 if (vpi > phba->max_vpi)96 vpi = 0;97 else98 set_bit(vpi, phba->vpi_bmask);99 if (phba->sli_rev == LPFC_SLI_REV4)100 phba->sli4_hba.max_cfg_param.vpi_used++;101 spin_unlock_irq(&phba->hbalock);102 return vpi;103}104 105static void106lpfc_free_vpi(struct lpfc_hba *phba, int vpi)107{108 if (vpi == 0)109 return;110 spin_lock_irq(&phba->hbalock);111 clear_bit(vpi, phba->vpi_bmask);112 if (phba->sli_rev == LPFC_SLI_REV4)113 phba->sli4_hba.max_cfg_param.vpi_used--;114 spin_unlock_irq(&phba->hbalock);115}116 117static int118lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport)119{120 LPFC_MBOXQ_t *pmb;121 MAILBOX_t *mb;122 struct lpfc_dmabuf *mp;123 int rc;124 125 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);126 if (!pmb) {127 return -ENOMEM;128 }129 mb = &pmb->u.mb;130 131 rc = lpfc_read_sparam(phba, pmb, vport->vpi);132 if (rc) {133 mempool_free(pmb, phba->mbox_mem_pool);134 return -ENOMEM;135 }136 137 /*138 * Wait for the read_sparams mailbox to complete. Driver needs139 * this per vport to start the FDISC. If the mailbox fails,140 * just cleanup and return an error unless the failure is a141 * mailbox timeout. For MBX_TIMEOUT, allow the default142 * mbox completion handler to take care of the cleanup. This143 * is safe as the mailbox command isn't one that triggers144 * another mailbox.145 */146 pmb->vport = vport;147 rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2);148 if (rc != MBX_SUCCESS) {149 if (signal_pending(current)) {150 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,151 "1830 Signal aborted mbxCmd x%x\n",152 mb->mbxCommand);153 if (rc != MBX_TIMEOUT)154 lpfc_mbox_rsrc_cleanup(phba, pmb,155 MBOX_THD_UNLOCKED);156 return -EINTR;157 } else {158 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,159 "1818 VPort failed init, mbxCmd x%x "160 "READ_SPARM mbxStatus x%x, rc = x%x\n",161 mb->mbxCommand, mb->mbxStatus, rc);162 if (rc != MBX_TIMEOUT)163 lpfc_mbox_rsrc_cleanup(phba, pmb,164 MBOX_THD_UNLOCKED);165 return -EIO;166 }167 }168 169 mp = pmb->ctx_buf;170 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));171 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,172 sizeof (struct lpfc_name));173 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,174 sizeof (struct lpfc_name));175 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);176 return 0;177}178 179static int180lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn,181 const char *name_type)182{183 /* ensure that IEEE format 1 addresses184 * contain zeros in bits 59-48185 */186 if (!((wwn->u.wwn[0] >> 4) == 1 &&187 ((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0)))188 return 1;189 190 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,191 "1822 Invalid %s: %02x:%02x:%02x:%02x:"192 "%02x:%02x:%02x:%02x\n",193 name_type,194 wwn->u.wwn[0], wwn->u.wwn[1],195 wwn->u.wwn[2], wwn->u.wwn[3],196 wwn->u.wwn[4], wwn->u.wwn[5],197 wwn->u.wwn[6], wwn->u.wwn[7]);198 return 0;199}200 201static int202lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport)203{204 struct lpfc_vport *vport;205 unsigned long flags;206 207 spin_lock_irqsave(&phba->port_list_lock, flags);208 list_for_each_entry(vport, &phba->port_list, listentry) {209 if (vport == new_vport)210 continue;211 /* If they match, return not unique */212 if (memcmp(&vport->fc_sparam.portName,213 &new_vport->fc_sparam.portName,214 sizeof(struct lpfc_name)) == 0) {215 spin_unlock_irqrestore(&phba->port_list_lock, flags);216 return 0;217 }218 }219 spin_unlock_irqrestore(&phba->port_list_lock, flags);220 return 1;221}222 223/**224 * lpfc_discovery_wait - Wait for driver discovery to quiesce225 * @vport: The virtual port for which this call is being executed.226 *227 * This driver calls this routine specifically from lpfc_vport_delete228 * to enforce a synchronous execution of vport229 * delete relative to discovery activities. The230 * lpfc_vport_delete routine should not return until it231 * can reasonably guarantee that discovery has quiesced.232 * Post FDISC LOGO, the driver must wait until its SAN teardown is233 * complete and all resources recovered before allowing234 * cleanup.235 *236 * This routine does not require any locks held.237 **/238static void lpfc_discovery_wait(struct lpfc_vport *vport)239{240 struct lpfc_hba *phba = vport->phba;241 unsigned long wait_time_max;242 unsigned long start_time;243 244 /*245 * The time constraint on this loop is a balance between the246 * fabric RA_TOV value and dev_loss tmo. The driver's247 * devloss_tmo is 10 giving this loop a 3x multiplier minimally.248 */249 wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000);250 wait_time_max += jiffies;251 start_time = jiffies;252 while (time_before(jiffies, wait_time_max)) {253 if ((vport->num_disc_nodes > 0) ||254 test_bit(FC_RSCN_MODE, &vport->fc_flag) ||255 test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag) ||256 test_bit(FC_NLP_MORE, &vport->fc_flag) ||257 test_bit(FC_RSCN_DEFERRED, &vport->fc_flag) ||258 test_bit(FC_NDISC_ACTIVE, &vport->fc_flag) ||259 test_bit(FC_DISC_TMO, &vport->fc_flag) ||260 ((vport->port_state > LPFC_VPORT_FAILED) &&261 (vport->port_state < LPFC_VPORT_READY))) {262 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,263 "1833 Vport discovery quiesce Wait: "264 "state x%x fc_flags x%lx "265 "num_nodes x%x, waiting 1000 msecs "266 "total wait msecs x%x\n",267 vport->port_state, vport->fc_flag,268 vport->num_disc_nodes,269 jiffies_to_msecs(jiffies - start_time));270 msleep(1000);271 } else {272 /* Base case. Wait variants satisfied. Break out */273 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,274 "1834 Vport discovery quiesced: "275 "state x%x fc_flags x%lx "276 "wait msecs x%x\n",277 vport->port_state, vport->fc_flag,278 jiffies_to_msecs(jiffies279 - start_time));280 break;281 }282 }283 284 if (time_after(jiffies, wait_time_max))285 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,286 "1835 Vport discovery quiesce failed:"287 " state x%x fc_flags x%lx wait msecs x%x\n",288 vport->port_state, vport->fc_flag,289 jiffies_to_msecs(jiffies - start_time));290}291 292int293lpfc_vport_create(struct fc_vport *fc_vport, bool disable)294{295 struct lpfc_nodelist *ndlp;296 struct Scsi_Host *shost = fc_vport->shost;297 struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata;298 struct lpfc_hba *phba = pport->phba;299 struct lpfc_vport *vport = NULL;300 int instance;301 int vpi;302 int rc = VPORT_ERROR;303 int status;304 305 if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) {306 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,307 "1808 Create VPORT failed: "308 "NPIV is not enabled: SLImode:%d\n",309 phba->sli_rev);310 rc = VPORT_INVAL;311 goto error_out;312 }313 314 /* NPIV is not supported if HBA has NVME Target enabled */315 if (phba->nvmet_support) {316 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,317 "3189 Create VPORT failed: "318 "NPIV is not supported on NVME Target\n");319 rc = VPORT_INVAL;320 goto error_out;321 }322 323 vpi = lpfc_alloc_vpi(phba);324 if (vpi == 0) {325 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,326 "1809 Create VPORT failed: "327 "Max VPORTs (%d) exceeded\n",328 phba->max_vpi);329 rc = VPORT_NORESOURCES;330 goto error_out;331 }332 333 /* Assign an unused board number */334 if ((instance = lpfc_get_instance()) < 0) {335 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,336 "1810 Create VPORT failed: Cannot get "337 "instance number\n");338 lpfc_free_vpi(phba, vpi);339 rc = VPORT_NORESOURCES;340 goto error_out;341 }342 343 vport = lpfc_create_port(phba, instance, &fc_vport->dev);344 if (!vport) {345 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,346 "1811 Create VPORT failed: vpi x%x\n", vpi);347 lpfc_free_vpi(phba, vpi);348 rc = VPORT_NORESOURCES;349 goto error_out;350 }351 352 vport->vpi = vpi;353 lpfc_debugfs_initialize(vport);354 355 if ((status = lpfc_vport_sparm(phba, vport))) {356 if (status == -EINTR) {357 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,358 "1831 Create VPORT Interrupted.\n");359 rc = VPORT_ERROR;360 } else {361 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,362 "1813 Create VPORT failed. "363 "Cannot get sparam\n");364 rc = VPORT_NORESOURCES;365 }366 lpfc_free_vpi(phba, vpi);367 destroy_port(vport);368 goto error_out;369 }370 371 u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn);372 u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn);373 374 memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8);375 memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8);376 377 if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") ||378 !lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) {379 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,380 "1821 Create VPORT failed. "381 "Invalid WWN format\n");382 lpfc_free_vpi(phba, vpi);383 destroy_port(vport);384 rc = VPORT_INVAL;385 goto error_out;386 }387 388 if (!lpfc_unique_wwpn(phba, vport)) {389 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,390 "1823 Create VPORT failed. "391 "Duplicate WWN on HBA\n");392 lpfc_free_vpi(phba, vpi);393 destroy_port(vport);394 rc = VPORT_INVAL;395 goto error_out;396 }397 398 /* Create binary sysfs attribute for vport */399 lpfc_alloc_sysfs_attr(vport);400 401 /* Set the DFT_LUN_Q_DEPTH accordingly */402 vport->cfg_lun_queue_depth = phba->pport->cfg_lun_queue_depth;403 404 /* Only the physical port can support NVME for now */405 vport->cfg_enable_fc4_type = LPFC_ENABLE_FCP;406 407 *(struct lpfc_vport **)fc_vport->dd_data = vport;408 vport->fc_vport = fc_vport;409 410 /* At this point we are fully registered with SCSI Layer. */411 set_bit(FC_ALLOW_FDMI, &vport->load_flag);412 if (phba->cfg_enable_SmartSAN ||413 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {414 /* Setup appropriate attribute masks */415 vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask;416 vport->fdmi_port_mask = phba->pport->fdmi_port_mask;417 }418 419 /*420 * In SLI4, the vpi must be activated before it can be used421 * by the port.422 */423 if ((phba->sli_rev == LPFC_SLI_REV4) &&424 test_bit(FC_VFI_REGISTERED, &pport->fc_flag)) {425 rc = lpfc_sli4_init_vpi(vport);426 if (rc) {427 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,428 "1838 Failed to INIT_VPI on vpi %d "429 "status %d\n", vpi, rc);430 rc = VPORT_NORESOURCES;431 lpfc_free_vpi(phba, vpi);432 goto error_out;433 }434 } else if (phba->sli_rev == LPFC_SLI_REV4) {435 /*436 * Driver cannot INIT_VPI now. Set the flags to437 * init_vpi when reg_vfi complete.438 */439 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag);440 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);441 rc = VPORT_OK;442 goto out;443 }444 445 if ((phba->link_state < LPFC_LINK_UP) ||446 (pport->port_state < LPFC_FABRIC_CFG_LINK) ||447 (phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {448 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);449 rc = VPORT_OK;450 goto out;451 }452 453 if (disable) {454 lpfc_vport_set_state(vport, FC_VPORT_DISABLED);455 rc = VPORT_OK;456 goto out;457 }458 459 /* Use the Physical nodes Fabric NDLP to determine if the link is460 * up and ready to FDISC.461 */462 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);463 if (ndlp &&464 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {465 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {466 lpfc_set_disctmo(vport);467 lpfc_initial_fdisc(vport);468 } else {469 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);470 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,471 "0262 No NPIV Fabric support\n");472 }473 } else {474 lpfc_vport_set_state(vport, FC_VPORT_FAILED);475 }476 rc = VPORT_OK;477 478out:479 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,480 "1825 Vport Created.\n");481 lpfc_host_attrib_init(lpfc_shost_from_vport(vport));482error_out:483 return rc;484}485 486static int487lpfc_send_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)488{489 int rc;490 struct lpfc_hba *phba = vport->phba;491 492 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);493 494 spin_lock_irq(&ndlp->lock);495 if (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO) &&496 !ndlp->logo_waitq) {497 ndlp->logo_waitq = &waitq;498 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;499 ndlp->nlp_flag |= NLP_ISSUE_LOGO;500 ndlp->save_flags |= NLP_WAIT_FOR_LOGO;501 }502 spin_unlock_irq(&ndlp->lock);503 rc = lpfc_issue_els_npiv_logo(vport, ndlp);504 if (!rc) {505 wait_event_timeout(waitq,506 (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO)),507 msecs_to_jiffies(phba->fc_ratov * 2000));508 509 if (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO))510 goto logo_cmpl;511 /* LOGO wait failed. Correct status. */512 rc = -EINTR;513 } else {514 rc = -EIO;515 }516 517 /* Error - clean up node flags. */518 spin_lock_irq(&ndlp->lock);519 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;520 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO;521 spin_unlock_irq(&ndlp->lock);522 523 logo_cmpl:524 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,525 "1824 Issue LOGO completes with status %d\n",526 rc);527 spin_lock_irq(&ndlp->lock);528 ndlp->logo_waitq = NULL;529 spin_unlock_irq(&ndlp->lock);530 return rc;531}532 533static int534disable_vport(struct fc_vport *fc_vport)535{536 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;537 struct lpfc_hba *phba = vport->phba;538 struct lpfc_nodelist *ndlp = NULL;539 540 /* Can't disable during an outstanding delete. */541 if (test_bit(FC_UNLOADING, &vport->load_flag))542 return 0;543 544 ndlp = lpfc_findnode_did(vport, Fabric_DID);545 if (ndlp && phba->link_state >= LPFC_LINK_UP)546 (void)lpfc_send_npiv_logo(vport, ndlp);547 548 lpfc_sli_host_down(vport);549 lpfc_cleanup_rpis(vport, 0);550 551 lpfc_stop_vport_timers(vport);552 lpfc_unreg_all_rpis(vport);553 lpfc_unreg_default_rpis(vport);554 /*555 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the556 * scsi_host_put() to release the vport.557 */558 lpfc_mbx_unreg_vpi(vport);559 if (phba->sli_rev == LPFC_SLI_REV4)560 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag);561 562 lpfc_vport_set_state(vport, FC_VPORT_DISABLED);563 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,564 "1826 Vport Disabled.\n");565 return VPORT_OK;566}567 568static int569enable_vport(struct fc_vport *fc_vport)570{571 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;572 struct lpfc_hba *phba = vport->phba;573 struct lpfc_nodelist *ndlp = NULL;574 575 if ((phba->link_state < LPFC_LINK_UP) ||576 (phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {577 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);578 return VPORT_OK;579 }580 581 set_bit(FC_LOADING, &vport->load_flag);582 if (test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) {583 lpfc_issue_init_vpi(vport);584 goto out;585 }586 587 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag);588 589 /* Use the Physical nodes Fabric NDLP to determine if the link is590 * up and ready to FDISC.591 */592 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);593 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {594 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {595 lpfc_set_disctmo(vport);596 lpfc_initial_fdisc(vport);597 } else {598 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);599 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,600 "0264 No NPIV Fabric support\n");601 }602 } else {603 lpfc_vport_set_state(vport, FC_VPORT_FAILED);604 }605 606out:607 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,608 "1827 Vport Enabled.\n");609 return VPORT_OK;610}611 612int613lpfc_vport_disable(struct fc_vport *fc_vport, bool disable)614{615 if (disable)616 return disable_vport(fc_vport);617 else618 return enable_vport(fc_vport);619}620 621int622lpfc_vport_delete(struct fc_vport *fc_vport)623{624 struct lpfc_nodelist *ndlp = NULL;625 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;626 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);627 struct lpfc_hba *phba = vport->phba;628 int rc;629 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);630 631 if (vport->port_type == LPFC_PHYSICAL_PORT) {632 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,633 "1812 vport_delete failed: Cannot delete "634 "physical host\n");635 return VPORT_ERROR;636 }637 638 /* If the vport is a static vport fail the deletion. */639 if ((vport->vport_flag & STATIC_VPORT) &&640 !test_bit(FC_UNLOADING, &phba->pport->load_flag)) {641 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,642 "1837 vport_delete failed: Cannot delete "643 "static vport.\n");644 return VPORT_ERROR;645 }646 647 set_bit(FC_UNLOADING, &vport->load_flag);648 649 /*650 * If we are not unloading the driver then prevent the vport_delete651 * from happening until after this vport's discovery is finished.652 */653 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) {654 int check_count = 0;655 while (check_count < ((phba->fc_ratov * 3) + 3) &&656 vport->port_state > LPFC_VPORT_FAILED &&657 vport->port_state < LPFC_VPORT_READY) {658 check_count++;659 msleep(1000);660 }661 if (vport->port_state > LPFC_VPORT_FAILED &&662 vport->port_state < LPFC_VPORT_READY)663 return -EAGAIN;664 }665 666 /*667 * Take early refcount for outstanding I/O requests we schedule during668 * delete processing for unreg_vpi. Always keep this before669 * scsi_remove_host() as we can no longer obtain a reference through670 * scsi_host_get() after scsi_host_remove as shost is set to SHOST_DEL.671 */672 if (!scsi_host_get(shost))673 return VPORT_INVAL;674 675 lpfc_free_sysfs_attr(vport);676 lpfc_debugfs_terminate(vport);677 678 /* Send the DA_ID and Fabric LOGO to cleanup Nameserver entries. */679 ndlp = lpfc_findnode_did(vport, Fabric_DID);680 if (!ndlp)681 goto skip_logo;682 683 /* Send the DA_ID and Fabric LOGO to cleanup the NPIV fabric entries. */684 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&685 phba->link_state >= LPFC_LINK_UP &&686 phba->fc_topology != LPFC_TOPOLOGY_LOOP) {687 if (vport->cfg_enable_da_id) {688 /* Send DA_ID and wait for a completion. This is best689 * effort. If the DA_ID fails, likely the fabric will690 * "leak" NportIDs but at least the driver issued the691 * command.692 */693 ndlp = lpfc_findnode_did(vport, NameServer_DID);694 if (!ndlp)695 goto issue_logo;696 697 spin_lock_irq(&ndlp->lock);698 ndlp->da_id_waitq = &waitq;699 ndlp->save_flags |= NLP_WAIT_FOR_DA_ID;700 spin_unlock_irq(&ndlp->lock);701 702 rc = lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0);703 if (!rc) {704 wait_event_timeout(waitq,705 !(ndlp->save_flags & NLP_WAIT_FOR_DA_ID),706 msecs_to_jiffies(phba->fc_ratov * 2000));707 }708 709 lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT | LOG_ELS,710 "1829 DA_ID issue status %d. "711 "SFlag x%x NState x%x, NFlag x%x "712 "Rpi x%x\n",713 rc, ndlp->save_flags, ndlp->nlp_state,714 ndlp->nlp_flag, ndlp->nlp_rpi);715 716 /* Remove the waitq and save_flags. It no717 * longer matters if the wake happened.718 */719 spin_lock_irq(&ndlp->lock);720 ndlp->da_id_waitq = NULL;721 ndlp->save_flags &= ~NLP_WAIT_FOR_DA_ID;722 spin_unlock_irq(&ndlp->lock);723 }724 725issue_logo:726 /*727 * If the vpi is not registered, then a valid FDISC doesn't728 * exist and there is no need for a ELS LOGO. Just cleanup729 * the ndlp.730 */731 if (!(vport->vpi_state & LPFC_VPI_REGISTERED))732 goto skip_logo;733 734 /* Issue a Fabric LOGO to cleanup fabric resources. */735 ndlp = lpfc_findnode_did(vport, Fabric_DID);736 if (!ndlp)737 goto skip_logo;738 739 rc = lpfc_send_npiv_logo(vport, ndlp);740 if (rc)741 goto skip_logo;742 }743 744 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))745 lpfc_discovery_wait(vport);746 747skip_logo:748 749 /* Remove FC host to break driver binding. */750 fc_remove_host(shost);751 scsi_remove_host(shost);752 753 lpfc_cleanup(vport);754 755 /* Remove scsi host now. The nodes are cleaned up. */756 lpfc_sli_host_down(vport);757 lpfc_stop_vport_timers(vport);758 759 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) {760 lpfc_unreg_all_rpis(vport);761 lpfc_unreg_default_rpis(vport);762 /*763 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)764 * does the scsi_host_put() to release the vport.765 */766 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) ||767 lpfc_mbx_unreg_vpi(vport))768 scsi_host_put(shost);769 } else {770 scsi_host_put(shost);771 }772 773 lpfc_free_vpi(phba, vport->vpi);774 vport->work_port_events = 0;775 spin_lock_irq(&phba->port_list_lock);776 list_del_init(&vport->listentry);777 spin_unlock_irq(&phba->port_list_lock);778 lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,779 "1828 Vport Deleted.\n");780 scsi_host_put(shost);781 return VPORT_OK;782}783 784struct lpfc_vport **785lpfc_create_vport_work_array(struct lpfc_hba *phba)786{787 struct lpfc_vport *port_iterator;788 struct lpfc_vport **vports;789 int index = 0;790 vports = kcalloc(phba->max_vports + 1, sizeof(struct lpfc_vport *),791 GFP_KERNEL);792 if (vports == NULL)793 return NULL;794 spin_lock_irq(&phba->port_list_lock);795 list_for_each_entry(port_iterator, &phba->port_list, listentry) {796 if (test_bit(FC_UNLOADING, &port_iterator->load_flag))797 continue;798 if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {799 lpfc_printf_vlog(port_iterator, KERN_ERR,800 LOG_TRACE_EVENT,801 "1801 Create vport work array FAILED: "802 "cannot do scsi_host_get\n");803 continue;804 }805 vports[index++] = port_iterator;806 }807 spin_unlock_irq(&phba->port_list_lock);808 return vports;809}810 811void812lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)813{814 int i;815 if (vports == NULL)816 return;817 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)818 scsi_host_put(lpfc_shost_from_vport(vports[i]));819 kfree(vports);820}821 822