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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/slab.h>27#include <linux/pci.h>28#include <linux/kthread.h>29#include <linux/interrupt.h>30#include <linux/lockdep.h>31#include <linux/utsname.h>32 33#include <scsi/scsi.h>34#include <scsi/scsi_device.h>35#include <scsi/scsi_host.h>36#include <scsi/scsi_transport_fc.h>37#include <scsi/fc/fc_fs.h>38 39#include "lpfc_hw4.h"40#include "lpfc_hw.h"41#include "lpfc_nl.h"42#include "lpfc_disc.h"43#include "lpfc_sli.h"44#include "lpfc_sli4.h"45#include "lpfc.h"46#include "lpfc_scsi.h"47#include "lpfc_nvme.h"48#include "lpfc_logmsg.h"49#include "lpfc_crtn.h"50#include "lpfc_vport.h"51#include "lpfc_debugfs.h"52 53/* AlpaArray for assignment of scsid for scan-down and bind_method */54static uint8_t lpfcAlpaArray[] = {55 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,56 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,57 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,58 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,59 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,60 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,61 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,62 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,63 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,64 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,65 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,66 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,67 0x10, 0x0F, 0x08, 0x04, 0x02, 0x0168};69 70static void lpfc_disc_timeout_handler(struct lpfc_vport *);71static void lpfc_disc_flush_list(struct lpfc_vport *vport);72static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);73static int lpfc_fcf_inuse(struct lpfc_hba *);74static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *);75static void lpfc_check_inactive_vmid(struct lpfc_hba *phba);76static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba);77 78static int79lpfc_valid_xpt_node(struct lpfc_nodelist *ndlp)80{81 if (ndlp->nlp_fc4_type ||82 ndlp->nlp_type & NLP_FABRIC)83 return 1;84 return 0;85}86/* The source of a terminate rport I/O is either a dev_loss_tmo87 * event or a call to fc_remove_host. While the rport should be88 * valid during these downcalls, the transport can call twice89 * in a single event. This routine provides somoe protection90 * as the NDLP isn't really free, just released to the pool.91 */92static int93lpfc_rport_invalid(struct fc_rport *rport)94{95 struct lpfc_rport_data *rdata;96 struct lpfc_nodelist *ndlp;97 98 if (!rport) {99 pr_err("**** %s: NULL rport, exit.\n", __func__);100 return -EINVAL;101 }102 103 rdata = rport->dd_data;104 if (!rdata) {105 pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n",106 __func__, rport, rport->scsi_target_id);107 return -EINVAL;108 }109 110 ndlp = rdata->pnode;111 if (!rdata->pnode) {112 pr_info("**** %s: NULL ndlp on rport x%px SID x%x\n",113 __func__, rport, rport->scsi_target_id);114 return -EINVAL;115 }116 117 if (!ndlp->vport) {118 pr_err("**** %s: Null vport on ndlp x%px, DID x%x rport x%px "119 "SID x%x\n", __func__, ndlp, ndlp->nlp_DID, rport,120 rport->scsi_target_id);121 return -EINVAL;122 }123 return 0;124}125 126void127lpfc_terminate_rport_io(struct fc_rport *rport)128{129 struct lpfc_rport_data *rdata;130 struct lpfc_nodelist *ndlp;131 struct lpfc_vport *vport;132 133 if (lpfc_rport_invalid(rport))134 return;135 136 rdata = rport->dd_data;137 ndlp = rdata->pnode;138 vport = ndlp->vport;139 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,140 "rport terminate: sid:x%x did:x%x flg:x%x",141 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);142 143 if (ndlp->nlp_sid != NLP_NO_SID)144 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);145}146 147/*148 * This function will be called when dev_loss_tmo fire.149 */150void151lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)152{153 struct lpfc_nodelist *ndlp;154 struct lpfc_vport *vport;155 struct lpfc_hba *phba;156 struct lpfc_work_evt *evtp;157 unsigned long iflags;158 159 ndlp = ((struct lpfc_rport_data *)rport->dd_data)->pnode;160 if (!ndlp)161 return;162 163 vport = ndlp->vport;164 phba = vport->phba;165 166 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,167 "rport devlosscb: sid:x%x did:x%x flg:x%x",168 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);169 170 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,171 "3181 dev_loss_callbk x%06x, rport x%px flg x%x "172 "load_flag x%lx refcnt %u state %d xpt x%x\n",173 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag,174 vport->load_flag, kref_read(&ndlp->kref),175 ndlp->nlp_state, ndlp->fc4_xpt_flags);176 177 /* Don't schedule a worker thread event if the vport is going down. */178 if (test_bit(FC_UNLOADING, &vport->load_flag) ||179 !test_bit(HBA_SETUP, &phba->hba_flag)) {180 spin_lock_irqsave(&ndlp->lock, iflags);181 ndlp->rport = NULL;182 183 /* The scsi_transport is done with the rport so lpfc cannot184 * call to unregister. Remove the scsi transport reference185 * and clean up the SCSI transport node details.186 */187 if (ndlp->fc4_xpt_flags & (NLP_XPT_REGD | SCSI_XPT_REGD)) {188 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;189 190 /* NVME transport-registered rports need the191 * NLP_XPT_REGD flag to complete an unregister.192 */193 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD))194 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD;195 spin_unlock_irqrestore(&ndlp->lock, iflags);196 lpfc_nlp_put(ndlp);197 spin_lock_irqsave(&ndlp->lock, iflags);198 }199 200 /* Only 1 thread can drop the initial node reference. If201 * another thread has set NLP_DROPPED, this thread is done.202 */203 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD) &&204 !(ndlp->nlp_flag & NLP_DROPPED)) {205 ndlp->nlp_flag |= NLP_DROPPED;206 spin_unlock_irqrestore(&ndlp->lock, iflags);207 lpfc_nlp_put(ndlp);208 return;209 }210 211 spin_unlock_irqrestore(&ndlp->lock, iflags);212 return;213 }214 215 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)216 return;217 218 /* check for recovered fabric node */219 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&220 ndlp->nlp_DID == Fabric_DID)221 return;222 223 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))224 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,225 "6789 rport name %llx != node port name %llx",226 rport->port_name,227 wwn_to_u64(ndlp->nlp_portname.u.wwn));228 229 evtp = &ndlp->dev_loss_evt;230 231 if (!list_empty(&evtp->evt_listp)) {232 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,233 "6790 rport name %llx dev_loss_evt pending\n",234 rport->port_name);235 return;236 }237 238 spin_lock_irqsave(&ndlp->lock, iflags);239 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;240 241 /* If there is a PLOGI in progress, and we are in a242 * NLP_NPR_2B_DISC state, don't turn off the flag.243 */244 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE)245 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;246 247 /*248 * The backend does not expect any more calls associated with this249 * rport. Remove the association between rport and ndlp.250 */251 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;252 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL;253 ndlp->rport = NULL;254 spin_unlock_irqrestore(&ndlp->lock, iflags);255 256 if (phba->worker_thread) {257 /* We need to hold the node by incrementing the reference258 * count until this queued work is done259 */260 evtp->evt_arg1 = lpfc_nlp_get(ndlp);261 262 spin_lock_irqsave(&phba->hbalock, iflags);263 if (evtp->evt_arg1) {264 evtp->evt = LPFC_EVT_DEV_LOSS;265 list_add_tail(&evtp->evt_listp, &phba->work_list);266 spin_unlock_irqrestore(&phba->hbalock, iflags);267 lpfc_worker_wake_up(phba);268 return;269 }270 spin_unlock_irqrestore(&phba->hbalock, iflags);271 } else {272 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,273 "3188 worker thread is stopped %s x%06x, "274 " rport x%px flg x%x load_flag x%lx refcnt "275 "%d\n", __func__, ndlp->nlp_DID,276 ndlp->rport, ndlp->nlp_flag,277 vport->load_flag, kref_read(&ndlp->kref));278 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) {279 spin_lock_irqsave(&ndlp->lock, iflags);280 /* Node is in dev loss. No further transaction. */281 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;282 spin_unlock_irqrestore(&ndlp->lock, iflags);283 lpfc_disc_state_machine(vport, ndlp, NULL,284 NLP_EVT_DEVICE_RM);285 }286 }287}288 289/**290 * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport291 * @vport: Pointer to vport context object.292 *293 * This function checks for idle VMID entries related to a particular vport. If294 * found unused/idle, free them accordingly.295 **/296static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport)297{298 u16 keep;299 u32 difftime = 0, r, bucket;300 u64 *lta;301 int cpu;302 struct lpfc_vmid *vmp;303 304 write_lock(&vport->vmid_lock);305 306 if (!vport->cur_vmid_cnt)307 goto out;308 309 /* iterate through the table */310 hash_for_each(vport->hash_table, bucket, vmp, hnode) {311 keep = 0;312 if (vmp->flag & LPFC_VMID_REGISTERED) {313 /* check if the particular VMID is in use */314 /* for all available per cpu variable */315 for_each_possible_cpu(cpu) {316 /* if last access time is less than timeout */317 lta = per_cpu_ptr(vmp->last_io_time, cpu);318 if (!lta)319 continue;320 difftime = (jiffies) - (*lta);321 if ((vport->vmid_inactivity_timeout *322 JIFFIES_PER_HR) > difftime) {323 keep = 1;324 break;325 }326 }327 328 /* if none of the cpus have been used by the vm, */329 /* remove the entry if already registered */330 if (!keep) {331 /* mark the entry for deregistration */332 vmp->flag = LPFC_VMID_DE_REGISTER;333 write_unlock(&vport->vmid_lock);334 if (vport->vmid_priority_tagging)335 r = lpfc_vmid_uvem(vport, vmp, false);336 else337 r = lpfc_vmid_cmd(vport,338 SLI_CTAS_DAPP_IDENT,339 vmp);340 341 /* decrement number of active vms and mark */342 /* entry in slot as free */343 write_lock(&vport->vmid_lock);344 if (!r) {345 struct lpfc_vmid *ht = vmp;346 347 vport->cur_vmid_cnt--;348 ht->flag = LPFC_VMID_SLOT_FREE;349 free_percpu(ht->last_io_time);350 ht->last_io_time = NULL;351 hash_del(&ht->hnode);352 }353 }354 }355 }356 out:357 write_unlock(&vport->vmid_lock);358}359 360/**361 * lpfc_check_inactive_vmid - VMID inactivity checker362 * @phba: Pointer to hba context object.363 *364 * This function is called from the worker thread to determine if an entry in365 * the VMID table can be released since there was no I/O activity seen from that366 * particular VM for the specified time. When this happens, the entry in the367 * table is released and also the resources on the switch cleared.368 **/369 370static void lpfc_check_inactive_vmid(struct lpfc_hba *phba)371{372 struct lpfc_vport *vport;373 struct lpfc_vport **vports;374 int i;375 376 vports = lpfc_create_vport_work_array(phba);377 if (!vports)378 return;379 380 for (i = 0; i <= phba->max_vports; i++) {381 if ((!vports[i]) && (i == 0))382 vport = phba->pport;383 else384 vport = vports[i];385 if (!vport)386 break;387 388 lpfc_check_inactive_vmid_one(vport);389 }390 lpfc_destroy_vport_work_array(phba, vports);391}392 393/**394 * lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss395 * @vport: Pointer to vport object.396 * @ndlp: Pointer to remote node object.397 *398 * If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of399 * node during dev_loss_tmo processing, then this function restores the nlp_put400 * kref decrement from lpfc_dev_loss_tmo_handler.401 **/402void403lpfc_check_nlp_post_devloss(struct lpfc_vport *vport,404 struct lpfc_nodelist *ndlp)405{406 unsigned long iflags;407 408 spin_lock_irqsave(&ndlp->lock, iflags);409 if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) {410 ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS;411 spin_unlock_irqrestore(&ndlp->lock, iflags);412 lpfc_nlp_get(ndlp);413 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE,414 "8438 Devloss timeout reversed on DID x%x "415 "refcnt %d ndlp %p flag x%x "416 "port_state = x%x\n",417 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp,418 ndlp->nlp_flag, vport->port_state);419 return;420 }421 spin_unlock_irqrestore(&ndlp->lock, iflags);422}423 424/**425 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler426 * @ndlp: Pointer to remote node object.427 *428 * This function is called from the worker thread when devloss timeout timer429 * expires. For SLI4 host, this routine shall return 1 when at lease one430 * remote node, including this @ndlp, is still in use of FCF; otherwise, this431 * routine shall return 0 when there is no remote node is still in use of FCF432 * when devloss timeout happened to this @ndlp.433 **/434static int435lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)436{437 struct lpfc_vport *vport;438 struct lpfc_hba *phba;439 uint8_t *name;440 int warn_on = 0;441 int fcf_inuse = 0;442 bool recovering = false;443 struct fc_vport *fc_vport = NULL;444 unsigned long iflags;445 446 vport = ndlp->vport;447 name = (uint8_t *)&ndlp->nlp_portname;448 phba = vport->phba;449 450 if (phba->sli_rev == LPFC_SLI_REV4)451 fcf_inuse = lpfc_fcf_inuse(phba);452 453 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,454 "rport devlosstmo:did:x%x type:x%x id:x%x",455 ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid);456 457 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,458 "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n",459 __func__, ndlp->nlp_DID, ndlp->nlp_flag,460 ndlp->fc4_xpt_flags, kref_read(&ndlp->kref));461 462 /* If the driver is recovering the rport, ignore devloss. */463 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {464 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,465 "0284 Devloss timeout Ignored on "466 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "467 "NPort x%x\n",468 *name, *(name+1), *(name+2), *(name+3),469 *(name+4), *(name+5), *(name+6), *(name+7),470 ndlp->nlp_DID);471 472 spin_lock_irqsave(&ndlp->lock, iflags);473 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;474 spin_unlock_irqrestore(&ndlp->lock, iflags);475 return fcf_inuse;476 }477 478 /* Fabric nodes are done. */479 if (ndlp->nlp_type & NLP_FABRIC) {480 spin_lock_irqsave(&ndlp->lock, iflags);481 482 /* The driver has to account for a race between any fabric483 * node that's in recovery when dev_loss_tmo expires. When this484 * happens, the driver has to allow node recovery.485 */486 switch (ndlp->nlp_DID) {487 case Fabric_DID:488 fc_vport = vport->fc_vport;489 if (fc_vport) {490 /* NPIV path. */491 if (fc_vport->vport_state ==492 FC_VPORT_INITIALIZING)493 recovering = true;494 } else {495 /* Physical port path. */496 if (test_bit(HBA_FLOGI_OUTSTANDING,497 &phba->hba_flag))498 recovering = true;499 }500 break;501 case Fabric_Cntl_DID:502 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)503 recovering = true;504 break;505 case FDMI_DID:506 fallthrough;507 case NameServer_DID:508 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&509 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE)510 recovering = true;511 break;512 default:513 /* Ensure the nlp_DID at least has the correct prefix.514 * The fabric domain controller's last three nibbles515 * vary so we handle it in the default case.516 */517 if (ndlp->nlp_DID & Fabric_DID_MASK) {518 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&519 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE)520 recovering = true;521 }522 break;523 }524 spin_unlock_irqrestore(&ndlp->lock, iflags);525 526 /* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing527 * the following lpfc_nlp_put is necessary after fabric node is528 * recovered.529 */530 spin_lock_irqsave(&ndlp->lock, iflags);531 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;532 spin_unlock_irqrestore(&ndlp->lock, iflags);533 if (recovering) {534 lpfc_printf_vlog(vport, KERN_INFO,535 LOG_DISCOVERY | LOG_NODE,536 "8436 Devloss timeout marked on "537 "DID x%x refcnt %d ndlp %p "538 "flag x%x port_state = x%x\n",539 ndlp->nlp_DID, kref_read(&ndlp->kref),540 ndlp, ndlp->nlp_flag,541 vport->port_state);542 spin_lock_irqsave(&ndlp->lock, iflags);543 ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS;544 spin_unlock_irqrestore(&ndlp->lock, iflags);545 return fcf_inuse;546 } else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {547 /* Fabric node fully recovered before this dev_loss_tmo548 * queue work is processed. Thus, ignore the549 * dev_loss_tmo event.550 */551 lpfc_printf_vlog(vport, KERN_INFO,552 LOG_DISCOVERY | LOG_NODE,553 "8437 Devloss timeout ignored on "554 "DID x%x refcnt %d ndlp %p "555 "flag x%x port_state = x%x\n",556 ndlp->nlp_DID, kref_read(&ndlp->kref),557 ndlp, ndlp->nlp_flag,558 vport->port_state);559 return fcf_inuse;560 }561 562 lpfc_nlp_put(ndlp);563 return fcf_inuse;564 }565 566 if (ndlp->nlp_sid != NLP_NO_SID) {567 warn_on = 1;568 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);569 }570 571 if (warn_on) {572 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,573 "0203 Devloss timeout on "574 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "575 "NPort x%06x Data: x%x x%x x%x refcnt %d\n",576 *name, *(name+1), *(name+2), *(name+3),577 *(name+4), *(name+5), *(name+6), *(name+7),578 ndlp->nlp_DID, ndlp->nlp_flag,579 ndlp->nlp_state, ndlp->nlp_rpi,580 kref_read(&ndlp->kref));581 } else {582 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT,583 "0204 Devloss timeout on "584 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "585 "NPort x%06x Data: x%x x%x x%x\n",586 *name, *(name+1), *(name+2), *(name+3),587 *(name+4), *(name+5), *(name+6), *(name+7),588 ndlp->nlp_DID, ndlp->nlp_flag,589 ndlp->nlp_state, ndlp->nlp_rpi);590 }591 spin_lock_irqsave(&ndlp->lock, iflags);592 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;593 spin_unlock_irqrestore(&ndlp->lock, iflags);594 595 /* If we are devloss, but we are in the process of rediscovering the596 * ndlp, don't issue a NLP_EVT_DEVICE_RM event.597 */598 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&599 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) {600 return fcf_inuse;601 }602 603 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD))604 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);605 606 return fcf_inuse;607}608 609static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba)610{611 struct lpfc_vport *vport;612 struct lpfc_vport **vports;613 int i;614 615 vports = lpfc_create_vport_work_array(phba);616 if (!vports)617 return;618 619 for (i = 0; i <= phba->max_vports; i++) {620 if ((!vports[i]) && (i == 0))621 vport = phba->pport;622 else623 vport = vports[i];624 if (!vport)625 break;626 627 if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) {628 if (!lpfc_issue_els_qfpa(vport))629 vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA;630 }631 }632 lpfc_destroy_vport_work_array(phba, vports);633}634 635/**636 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler637 * @phba: Pointer to hba context object.638 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.639 * @nlp_did: remote node identifer with devloss timeout.640 *641 * This function is called from the worker thread after invoking devloss642 * timeout handler and releasing the reference count for the ndlp with643 * which the devloss timeout was handled for SLI4 host. For the devloss644 * timeout of the last remote node which had been in use of FCF, when this645 * routine is invoked, it shall be guaranteed that none of the remote are646 * in-use of FCF. When devloss timeout to the last remote using the FCF,647 * if the FIP engine is neither in FCF table scan process nor roundrobin648 * failover process, the in-use FCF shall be unregistered. If the FIP649 * engine is in FCF discovery process, the devloss timeout state shall650 * be set for either the FCF table scan process or roundrobin failover651 * process to unregister the in-use FCF.652 **/653static void654lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,655 uint32_t nlp_did)656{657 /* If devloss timeout happened to a remote node when FCF had no658 * longer been in-use, do nothing.659 */660 if (!fcf_inuse)661 return;662 663 if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) &&664 !lpfc_fcf_inuse(phba)) {665 spin_lock_irq(&phba->hbalock);666 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {667 if (test_and_set_bit(HBA_DEVLOSS_TMO,668 &phba->hba_flag)) {669 spin_unlock_irq(&phba->hbalock);670 return;671 }672 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,673 "2847 Last remote node (x%x) using "674 "FCF devloss tmo\n", nlp_did);675 }676 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {677 spin_unlock_irq(&phba->hbalock);678 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,679 "2868 Devloss tmo to FCF rediscovery "680 "in progress\n");681 return;682 }683 spin_unlock_irq(&phba->hbalock);684 if (!test_bit(FCF_TS_INPROG, &phba->hba_flag) &&685 !test_bit(FCF_RR_INPROG, &phba->hba_flag)) {686 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,687 "2869 Devloss tmo to idle FIP engine, "688 "unreg in-use FCF and rescan.\n");689 /* Unregister in-use FCF and rescan */690 lpfc_unregister_fcf_rescan(phba);691 return;692 }693 if (test_bit(FCF_TS_INPROG, &phba->hba_flag))694 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,695 "2870 FCF table scan in progress\n");696 if (test_bit(FCF_RR_INPROG, &phba->hba_flag))697 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,698 "2871 FLOGI roundrobin FCF failover "699 "in progress\n");700 }701 lpfc_unregister_unused_fcf(phba);702}703 704/**705 * lpfc_alloc_fast_evt - Allocates data structure for posting event706 * @phba: Pointer to hba context object.707 *708 * This function is called from the functions which need to post709 * events from interrupt context. This function allocates data710 * structure required for posting event. It also keeps track of711 * number of events pending and prevent event storm when there are712 * too many events.713 **/714struct lpfc_fast_path_event *715lpfc_alloc_fast_evt(struct lpfc_hba *phba) {716 struct lpfc_fast_path_event *ret;717 718 /* If there are lot of fast event do not exhaust memory due to this */719 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)720 return NULL;721 722 ret = kzalloc(sizeof(struct lpfc_fast_path_event),723 GFP_ATOMIC);724 if (ret) {725 atomic_inc(&phba->fast_event_count);726 INIT_LIST_HEAD(&ret->work_evt.evt_listp);727 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;728 }729 return ret;730}731 732/**733 * lpfc_free_fast_evt - Frees event data structure734 * @phba: Pointer to hba context object.735 * @evt: Event object which need to be freed.736 *737 * This function frees the data structure required for posting738 * events.739 **/740void741lpfc_free_fast_evt(struct lpfc_hba *phba,742 struct lpfc_fast_path_event *evt) {743 744 atomic_dec(&phba->fast_event_count);745 kfree(evt);746}747 748/**749 * lpfc_send_fastpath_evt - Posts events generated from fast path750 * @phba: Pointer to hba context object.751 * @evtp: Event data structure.752 *753 * This function is called from worker thread, when the interrupt754 * context need to post an event. This function posts the event755 * to fc transport netlink interface.756 **/757static void758lpfc_send_fastpath_evt(struct lpfc_hba *phba,759 struct lpfc_work_evt *evtp)760{761 unsigned long evt_category, evt_sub_category;762 struct lpfc_fast_path_event *fast_evt_data;763 char *evt_data;764 uint32_t evt_data_size;765 struct Scsi_Host *shost;766 767 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,768 work_evt);769 770 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;771 evt_sub_category = (unsigned long) fast_evt_data->un.772 fabric_evt.subcategory;773 shost = lpfc_shost_from_vport(fast_evt_data->vport);774 if (evt_category == FC_REG_FABRIC_EVENT) {775 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {776 evt_data = (char *) &fast_evt_data->un.read_check_error;777 evt_data_size = sizeof(fast_evt_data->un.778 read_check_error);779 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||780 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {781 evt_data = (char *) &fast_evt_data->un.fabric_evt;782 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);783 } else {784 lpfc_free_fast_evt(phba, fast_evt_data);785 return;786 }787 } else if (evt_category == FC_REG_SCSI_EVENT) {788 switch (evt_sub_category) {789 case LPFC_EVENT_QFULL:790 case LPFC_EVENT_DEVBSY:791 evt_data = (char *) &fast_evt_data->un.scsi_evt;792 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);793 break;794 case LPFC_EVENT_CHECK_COND:795 evt_data = (char *) &fast_evt_data->un.check_cond_evt;796 evt_data_size = sizeof(fast_evt_data->un.797 check_cond_evt);798 break;799 case LPFC_EVENT_VARQUEDEPTH:800 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;801 evt_data_size = sizeof(fast_evt_data->un.802 queue_depth_evt);803 break;804 default:805 lpfc_free_fast_evt(phba, fast_evt_data);806 return;807 }808 } else {809 lpfc_free_fast_evt(phba, fast_evt_data);810 return;811 }812 813 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)814 fc_host_post_vendor_event(shost,815 fc_get_event_number(),816 evt_data_size,817 evt_data,818 LPFC_NL_VENDOR_ID);819 820 lpfc_free_fast_evt(phba, fast_evt_data);821 return;822}823 824static void825lpfc_work_list_done(struct lpfc_hba *phba)826{827 struct lpfc_work_evt *evtp = NULL;828 struct lpfc_nodelist *ndlp;829 int free_evt;830 int fcf_inuse;831 uint32_t nlp_did;832 bool hba_pci_err;833 834 spin_lock_irq(&phba->hbalock);835 while (!list_empty(&phba->work_list)) {836 list_remove_head((&phba->work_list), evtp, typeof(*evtp),837 evt_listp);838 spin_unlock_irq(&phba->hbalock);839 hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);840 free_evt = 1;841 switch (evtp->evt) {842 case LPFC_EVT_ELS_RETRY:843 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);844 if (!hba_pci_err) {845 lpfc_els_retry_delay_handler(ndlp);846 free_evt = 0; /* evt is part of ndlp */847 }848 /* decrement the node reference count held849 * for this queued work850 */851 lpfc_nlp_put(ndlp);852 break;853 case LPFC_EVT_DEV_LOSS:854 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);855 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);856 free_evt = 0;857 /* decrement the node reference count held for858 * this queued work859 */860 nlp_did = ndlp->nlp_DID;861 lpfc_nlp_put(ndlp);862 if (phba->sli_rev == LPFC_SLI_REV4)863 lpfc_sli4_post_dev_loss_tmo_handler(phba,864 fcf_inuse,865 nlp_did);866 break;867 case LPFC_EVT_RECOVER_PORT:868 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);869 if (!hba_pci_err) {870 lpfc_sli_abts_recover_port(ndlp->vport, ndlp);871 free_evt = 0;872 }873 /* decrement the node reference count held for874 * this queued work875 */876 lpfc_nlp_put(ndlp);877 break;878 case LPFC_EVT_ONLINE:879 if (phba->link_state < LPFC_LINK_DOWN)880 *(int *) (evtp->evt_arg1) = lpfc_online(phba);881 else882 *(int *) (evtp->evt_arg1) = 0;883 complete((struct completion *)(evtp->evt_arg2));884 break;885 case LPFC_EVT_OFFLINE_PREP:886 if (phba->link_state >= LPFC_LINK_DOWN)887 lpfc_offline_prep(phba, LPFC_MBX_WAIT);888 *(int *)(evtp->evt_arg1) = 0;889 complete((struct completion *)(evtp->evt_arg2));890 break;891 case LPFC_EVT_OFFLINE:892 lpfc_offline(phba);893 lpfc_sli_brdrestart(phba);894 *(int *)(evtp->evt_arg1) =895 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);896 lpfc_unblock_mgmt_io(phba);897 complete((struct completion *)(evtp->evt_arg2));898 break;899 case LPFC_EVT_WARM_START:900 lpfc_offline(phba);901 lpfc_reset_barrier(phba);902 lpfc_sli_brdreset(phba);903 lpfc_hba_down_post(phba);904 *(int *)(evtp->evt_arg1) =905 lpfc_sli_brdready(phba, HS_MBRDY);906 lpfc_unblock_mgmt_io(phba);907 complete((struct completion *)(evtp->evt_arg2));908 break;909 case LPFC_EVT_KILL:910 lpfc_offline(phba);911 *(int *)(evtp->evt_arg1)912 = (phba->pport->stopped)913 ? 0 : lpfc_sli_brdkill(phba);914 lpfc_unblock_mgmt_io(phba);915 complete((struct completion *)(evtp->evt_arg2));916 break;917 case LPFC_EVT_FASTPATH_MGMT_EVT:918 lpfc_send_fastpath_evt(phba, evtp);919 free_evt = 0;920 break;921 case LPFC_EVT_RESET_HBA:922 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))923 lpfc_reset_hba(phba);924 break;925 }926 if (free_evt)927 kfree(evtp);928 spin_lock_irq(&phba->hbalock);929 }930 spin_unlock_irq(&phba->hbalock);931 932}933 934static void935lpfc_work_done(struct lpfc_hba *phba)936{937 struct lpfc_sli_ring *pring;938 uint32_t ha_copy, status, control, work_port_events;939 struct lpfc_vport **vports;940 struct lpfc_vport *vport;941 int i;942 bool hba_pci_err;943 944 hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);945 spin_lock_irq(&phba->hbalock);946 ha_copy = phba->work_ha;947 phba->work_ha = 0;948 spin_unlock_irq(&phba->hbalock);949 if (hba_pci_err)950 ha_copy = 0;951 952 /* First, try to post the next mailbox command to SLI4 device */953 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC && !hba_pci_err)954 lpfc_sli4_post_async_mbox(phba);955 956 if (ha_copy & HA_ERATT) {957 /* Handle the error attention event */958 lpfc_handle_eratt(phba);959 960 if (phba->fw_dump_cmpl) {961 complete(phba->fw_dump_cmpl);962 phba->fw_dump_cmpl = NULL;963 }964 }965 966 if (ha_copy & HA_MBATT)967 lpfc_sli_handle_mb_event(phba);968 969 if (ha_copy & HA_LATT)970 lpfc_handle_latt(phba);971 972 /* Handle VMID Events */973 if (lpfc_is_vmid_enabled(phba) && !hba_pci_err) {974 if (phba->pport->work_port_events &975 WORKER_CHECK_VMID_ISSUE_QFPA) {976 lpfc_check_vmid_qfpa_issue(phba);977 phba->pport->work_port_events &=978 ~WORKER_CHECK_VMID_ISSUE_QFPA;979 }980 if (phba->pport->work_port_events &981 WORKER_CHECK_INACTIVE_VMID) {982 lpfc_check_inactive_vmid(phba);983 phba->pport->work_port_events &=984 ~WORKER_CHECK_INACTIVE_VMID;985 }986 }987 988 /* Process SLI4 events */989 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {990 if (test_bit(HBA_RRQ_ACTIVE, &phba->hba_flag))991 lpfc_handle_rrq_active(phba);992 if (test_bit(ELS_XRI_ABORT_EVENT, &phba->hba_flag))993 lpfc_sli4_els_xri_abort_event_proc(phba);994 if (test_bit(ASYNC_EVENT, &phba->hba_flag))995 lpfc_sli4_async_event_proc(phba);996 if (test_and_clear_bit(HBA_POST_RECEIVE_BUFFER,997 &phba->hba_flag))998 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);999 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)1000 lpfc_sli4_fcf_redisc_event_proc(phba);1001 }1002 1003 vports = lpfc_create_vport_work_array(phba);1004 if (vports != NULL)1005 for (i = 0; i <= phba->max_vports; i++) {1006 /*1007 * We could have no vports in array if unloading, so if1008 * this happens then just use the pport1009 */1010 if (vports[i] == NULL && i == 0)1011 vport = phba->pport;1012 else1013 vport = vports[i];1014 if (vport == NULL)1015 break;1016 spin_lock_irq(&vport->work_port_lock);1017 work_port_events = vport->work_port_events;1018 vport->work_port_events &= ~work_port_events;1019 spin_unlock_irq(&vport->work_port_lock);1020 if (hba_pci_err)1021 continue;1022 if (work_port_events & WORKER_DISC_TMO)1023 lpfc_disc_timeout_handler(vport);1024 if (work_port_events & WORKER_ELS_TMO)1025 lpfc_els_timeout_handler(vport);1026 if (work_port_events & WORKER_HB_TMO)1027 lpfc_hb_timeout_handler(phba);1028 if (work_port_events & WORKER_MBOX_TMO)1029 lpfc_mbox_timeout_handler(phba);1030 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)1031 lpfc_unblock_fabric_iocbs(phba);1032 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)1033 lpfc_ramp_down_queue_handler(phba);1034 if (work_port_events & WORKER_DELAYED_DISC_TMO)1035 lpfc_delayed_disc_timeout_handler(vport);1036 }1037 lpfc_destroy_vport_work_array(phba, vports);1038 1039 pring = lpfc_phba_elsring(phba);1040 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));1041 status >>= (4*LPFC_ELS_RING);1042 if (pring && (status & HA_RXMASK ||1043 pring->flag & LPFC_DEFERRED_RING_EVENT ||1044 test_bit(HBA_SP_QUEUE_EVT, &phba->hba_flag))) {1045 if (pring->flag & LPFC_STOP_IOCB_EVENT) {1046 pring->flag |= LPFC_DEFERRED_RING_EVENT;1047 /* Preserve legacy behavior. */1048 if (!test_bit(HBA_SP_QUEUE_EVT, &phba->hba_flag))1049 set_bit(LPFC_DATA_READY, &phba->data_flags);1050 } else {1051 /* Driver could have abort request completed in queue1052 * when link goes down. Allow for this transition.1053 */1054 if (phba->link_state >= LPFC_LINK_DOWN ||1055 phba->link_flag & LS_MDS_LOOPBACK) {1056 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;1057 lpfc_sli_handle_slow_ring_event(phba, pring,1058 (status &1059 HA_RXMASK));1060 }1061 }1062 if (phba->sli_rev == LPFC_SLI_REV4)1063 lpfc_drain_txq(phba);1064 /*1065 * Turn on Ring interrupts1066 */1067 if (phba->sli_rev <= LPFC_SLI_REV3) {1068 spin_lock_irq(&phba->hbalock);1069 control = readl(phba->HCregaddr);1070 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {1071 lpfc_debugfs_slow_ring_trc(phba,1072 "WRK Enable ring: cntl:x%x hacopy:x%x",1073 control, ha_copy, 0);1074 1075 control |= (HC_R0INT_ENA << LPFC_ELS_RING);1076 writel(control, phba->HCregaddr);1077 readl(phba->HCregaddr); /* flush */1078 } else {1079 lpfc_debugfs_slow_ring_trc(phba,1080 "WRK Ring ok: cntl:x%x hacopy:x%x",1081 control, ha_copy, 0);1082 }1083 spin_unlock_irq(&phba->hbalock);1084 }1085 }1086 lpfc_work_list_done(phba);1087}1088 1089int1090lpfc_do_work(void *p)1091{1092 struct lpfc_hba *phba = p;1093 int rc;1094 1095 set_user_nice(current, MIN_NICE);1096 current->flags |= PF_NOFREEZE;1097 phba->data_flags = 0;1098 1099 while (!kthread_should_stop()) {1100 /* wait and check worker queue activities */1101 rc = wait_event_interruptible(phba->work_waitq,1102 (test_and_clear_bit(LPFC_DATA_READY,1103 &phba->data_flags)1104 || kthread_should_stop()));1105 /* Signal wakeup shall terminate the worker thread */1106 if (rc) {1107 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,1108 "0433 Wakeup on signal: rc=x%x\n", rc);1109 break;1110 }1111 1112 /* Attend pending lpfc data processing */1113 lpfc_work_done(phba);1114 }1115 phba->worker_thread = NULL;1116 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,1117 "0432 Worker thread stopped.\n");1118 return 0;1119}1120 1121/*1122 * This is only called to handle FC worker events. Since this a rare1123 * occurrence, we allocate a struct lpfc_work_evt structure here instead of1124 * embedding it in the IOCB.1125 */1126int1127lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,1128 uint32_t evt)1129{1130 struct lpfc_work_evt *evtp;1131 unsigned long flags;1132 1133 /*1134 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will1135 * be queued to worker thread for processing1136 */1137 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);1138 if (!evtp)1139 return 0;1140 1141 evtp->evt_arg1 = arg1;1142 evtp->evt_arg2 = arg2;1143 evtp->evt = evt;1144 1145 spin_lock_irqsave(&phba->hbalock, flags);1146 list_add_tail(&evtp->evt_listp, &phba->work_list);1147 spin_unlock_irqrestore(&phba->hbalock, flags);1148 1149 lpfc_worker_wake_up(phba);1150 1151 return 1;1152}1153 1154void1155lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)1156{1157 struct lpfc_hba *phba = vport->phba;1158 struct lpfc_nodelist *ndlp, *next_ndlp;1159 1160 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {1161 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||1162 ((vport->port_type == LPFC_NPIV_PORT) &&1163 ((ndlp->nlp_DID == NameServer_DID) ||1164 (ndlp->nlp_DID == FDMI_DID) ||1165 (ndlp->nlp_DID == Fabric_Cntl_DID))))1166 lpfc_unreg_rpi(vport, ndlp);1167 1168 /* Leave Fabric nodes alone on link down */1169 if ((phba->sli_rev < LPFC_SLI_REV4) &&1170 (!remove && ndlp->nlp_type & NLP_FABRIC))1171 continue;1172 1173 /* Notify transport of connectivity loss to trigger cleanup. */1174 if (phba->nvmet_support &&1175 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)1176 lpfc_nvmet_invalidate_host(phba, ndlp);1177 1178 lpfc_disc_state_machine(vport, ndlp, NULL,1179 remove1180 ? NLP_EVT_DEVICE_RM1181 : NLP_EVT_DEVICE_RECOVERY);1182 }1183 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {1184 if (phba->sli_rev == LPFC_SLI_REV4)1185 lpfc_sli4_unreg_all_rpis(vport);1186 lpfc_mbx_unreg_vpi(vport);1187 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag);1188 }1189}1190 1191void1192lpfc_port_link_failure(struct lpfc_vport *vport)1193{1194 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);1195 1196 /* Cleanup any outstanding received buffers */1197 lpfc_cleanup_rcv_buffers(vport);1198 1199 /* Cleanup any outstanding RSCN activity */1200 lpfc_els_flush_rscn(vport);1201 1202 /* Cleanup any outstanding ELS commands */1203 lpfc_els_flush_cmd(vport);1204 1205 lpfc_cleanup_rpis(vport, 0);1206 1207 /* Turn off discovery timer if its running */1208 lpfc_can_disctmo(vport);1209}1210 1211void1212lpfc_linkdown_port(struct lpfc_vport *vport)1213{1214 struct lpfc_hba *phba = vport->phba;1215 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);1216 1217 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)1218 fc_host_post_event(shost, fc_get_event_number(),1219 FCH_EVT_LINKDOWN, 0);1220 1221 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,1222 "Link Down: state:x%x rtry:x%x flg:x%x",1223 vport->port_state, vport->fc_ns_retry, vport->fc_flag);1224 1225 lpfc_port_link_failure(vport);1226 1227 /* Stop delayed Nport discovery */1228 clear_bit(FC_DISC_DELAYED, &vport->fc_flag);1229 del_timer_sync(&vport->delayed_disc_tmo);1230 1231 if (phba->sli_rev == LPFC_SLI_REV4 &&1232 vport->port_type == LPFC_PHYSICAL_PORT &&1233 phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {1234 /* Assume success on link up */1235 phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;1236 }1237}1238 1239int1240lpfc_linkdown(struct lpfc_hba *phba)1241{1242 struct lpfc_vport *vport = phba->pport;1243 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);1244 struct lpfc_vport **vports;1245 LPFC_MBOXQ_t *mb;1246 int i;1247 int offline;1248 1249 if (phba->link_state == LPFC_LINK_DOWN)1250 return 0;1251 1252 /* Block all SCSI stack I/Os */1253 lpfc_scsi_dev_block(phba);1254 offline = pci_channel_offline(phba->pcidev);1255 1256 /* Decrement the held ndlp if there is a deferred flogi acc */1257 if (phba->defer_flogi_acc.flag) {1258 if (phba->defer_flogi_acc.ndlp) {1259 lpfc_nlp_put(phba->defer_flogi_acc.ndlp);1260 phba->defer_flogi_acc.ndlp = NULL;1261 }1262 }1263 phba->defer_flogi_acc.flag = false;1264 1265 /* Clear external loopback plug detected flag */1266 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK;1267 1268 spin_lock_irq(&phba->hbalock);1269 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);1270 spin_unlock_irq(&phba->hbalock);1271 if (phba->link_state > LPFC_LINK_DOWN) {1272 phba->link_state = LPFC_LINK_DOWN;1273 if (phba->sli4_hba.conf_trunk) {1274 phba->trunk_link.link0.state = 0;1275 phba->trunk_link.link1.state = 0;1276 phba->trunk_link.link2.state = 0;1277 phba->trunk_link.link3.state = 0;1278 phba->trunk_link.phy_lnk_speed =1279 LPFC_LINK_SPEED_UNKNOWN;1280 phba->sli4_hba.link_state.logical_speed =1281 LPFC_LINK_SPEED_UNKNOWN;1282 }1283 clear_bit(FC_LBIT, &phba->pport->fc_flag);1284 }1285 vports = lpfc_create_vport_work_array(phba);1286 if (vports != NULL) {1287 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {1288 /* Issue a LINK DOWN event to all nodes */1289 lpfc_linkdown_port(vports[i]);1290 1291 vports[i]->fc_myDID = 0;1292 1293 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||1294 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {1295 if (phba->nvmet_support)1296 lpfc_nvmet_update_targetport(phba);1297 else1298 lpfc_nvme_update_localport(vports[i]);1299 }1300 }1301 }1302 lpfc_destroy_vport_work_array(phba, vports);1303 1304 /* Clean up any SLI3 firmware default rpi's */1305 if (phba->sli_rev > LPFC_SLI_REV3 || offline)1306 goto skip_unreg_did;1307 1308 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);1309 if (mb) {1310 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);1311 mb->vport = vport;1312 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;1313 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)1314 == MBX_NOT_FINISHED) {1315 mempool_free(mb, phba->mbox_mem_pool);1316 }1317 }1318 1319 skip_unreg_did:1320 /* Setup myDID for link up if we are in pt2pt mode */1321 if (test_bit(FC_PT2PT, &phba->pport->fc_flag)) {1322 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);1323 if (mb) {1324 lpfc_config_link(phba, mb);1325 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;1326 mb->vport = vport;1327 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)1328 == MBX_NOT_FINISHED) {1329 mempool_free(mb, phba->mbox_mem_pool);1330 }1331 }1332 clear_bit(FC_PT2PT, &phba->pport->fc_flag);1333 clear_bit(FC_PT2PT_PLOGI, &phba->pport->fc_flag);1334 spin_lock_irq(shost->host_lock);1335 phba->pport->rcv_flogi_cnt = 0;1336 spin_unlock_irq(shost->host_lock);1337 }1338 return 0;1339}1340 1341static void1342lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)1343{1344 struct lpfc_nodelist *ndlp;1345 1346 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {1347 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);1348 1349 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)1350 continue;1351 if (ndlp->nlp_type & NLP_FABRIC) {1352 /* On Linkup its safe to clean up the ndlp1353 * from Fabric connections.1354 */1355 if (ndlp->nlp_DID != Fabric_DID)1356 lpfc_unreg_rpi(vport, ndlp);1357 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);1358 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {1359 /* Fail outstanding IO now since device is1360 * marked for PLOGI.1361 */1362 lpfc_unreg_rpi(vport, ndlp);1363 }1364 }1365}1366 1367static void1368lpfc_linkup_port(struct lpfc_vport *vport)1369{1370 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);1371 struct lpfc_hba *phba = vport->phba;1372 1373 if (test_bit(FC_UNLOADING, &vport->load_flag))1374 return;1375 1376 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,1377 "Link Up: top:x%x speed:x%x flg:x%x",1378 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);1379 1380 /* If NPIV is not enabled, only bring the physical port up */1381 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&1382 (vport != phba->pport))1383 return;1384 1385 if (phba->defer_flogi_acc.flag) {1386 clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag);1387 clear_bit(FC_RSCN_MODE, &vport->fc_flag);1388 clear_bit(FC_NLP_MORE, &vport->fc_flag);1389 clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag);1390 } else {1391 clear_bit(FC_PT2PT, &vport->fc_flag);1392 clear_bit(FC_PT2PT_PLOGI, &vport->fc_flag);1393 clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag);1394 clear_bit(FC_RSCN_MODE, &vport->fc_flag);1395 clear_bit(FC_NLP_MORE, &vport->fc_flag);1396 clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag);1397 }1398 set_bit(FC_NDISC_ACTIVE, &vport->fc_flag);1399 1400 spin_lock_irq(shost->host_lock);1401 vport->fc_ns_retry = 0;1402 spin_unlock_irq(shost->host_lock);1403 lpfc_setup_fdmi_mask(vport);1404 1405 lpfc_linkup_cleanup_nodes(vport);1406}1407 1408static int1409lpfc_linkup(struct lpfc_hba *phba)1410{1411 struct lpfc_vport **vports;1412 int i;1413 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);1414 1415 phba->link_state = LPFC_LINK_UP;1416 1417 /* Unblock fabric iocbs if they are blocked */1418 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);1419 del_timer_sync(&phba->fabric_block_timer);1420 1421 vports = lpfc_create_vport_work_array(phba);1422 if (vports != NULL)1423 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)1424 lpfc_linkup_port(vports[i]);1425 lpfc_destroy_vport_work_array(phba, vports);1426 1427 /* Clear the pport flogi counter in case the link down was1428 * absorbed without an ACQE. No lock here - in worker thread1429 * and discovery is synchronized.1430 */1431 spin_lock_irq(shost->host_lock);1432 phba->pport->rcv_flogi_cnt = 0;1433 spin_unlock_irq(shost->host_lock);1434 1435 /* reinitialize initial HBA flag */1436 clear_bit(HBA_FLOGI_ISSUED, &phba->hba_flag);1437 clear_bit(HBA_RHBA_CMPL, &phba->hba_flag);1438 1439 return 0;1440}1441 1442/*1443 * This routine handles processing a CLEAR_LA mailbox1444 * command upon completion. It is setup in the LPFC_MBOXQ1445 * as the completion routine when the command is1446 * handed off to the SLI layer. SLI3 only.1447 */1448static void1449lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)1450{1451 struct lpfc_vport *vport = pmb->vport;1452 struct lpfc_sli *psli = &phba->sli;1453 MAILBOX_t *mb = &pmb->u.mb;1454 uint32_t control;1455 1456 /* Since we don't do discovery right now, turn these off here */1457 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;1458 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;1459 1460 /* Check for error */1461 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {1462 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */1463 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,1464 "0320 CLEAR_LA mbxStatus error x%x hba "1465 "state x%x\n",1466 mb->mbxStatus, vport->port_state);1467 phba->link_state = LPFC_HBA_ERROR;1468 goto out;1469 }1470 1471 if (vport->port_type == LPFC_PHYSICAL_PORT)1472 phba->link_state = LPFC_HBA_READY;1473 1474 spin_lock_irq(&phba->hbalock);1475 psli->sli_flag |= LPFC_PROCESS_LA;1476 control = readl(phba->HCregaddr);1477 control |= HC_LAINT_ENA;1478 writel(control, phba->HCregaddr);1479 readl(phba->HCregaddr); /* flush */1480 spin_unlock_irq(&phba->hbalock);1481 mempool_free(pmb, phba->mbox_mem_pool);1482 return;1483 1484out:1485 /* Device Discovery completes */1486 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,1487 "0225 Device Discovery completes\n");1488 mempool_free(pmb, phba->mbox_mem_pool);1489 1490 clear_bit(FC_ABORT_DISCOVERY, &vport->fc_flag);1491 1492 lpfc_can_disctmo(vport);1493 1494 /* turn on Link Attention interrupts */1495 1496 spin_lock_irq(&phba->hbalock);1497 psli->sli_flag |= LPFC_PROCESS_LA;1498 control = readl(phba->HCregaddr);1499 control |= HC_LAINT_ENA;1500 writel(control, phba->HCregaddr);1501 readl(phba->HCregaddr); /* flush */1502 spin_unlock_irq(&phba->hbalock);1503 1504 return;1505}1506 1507void1508lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)1509{1510 struct lpfc_vport *vport = pmb->vport;1511 LPFC_MBOXQ_t *sparam_mb;1512 u16 status = pmb->u.mb.mbxStatus;1513 int rc;1514 1515 mempool_free(pmb, phba->mbox_mem_pool);1516 1517 if (status)1518 goto out;1519 1520 /* don't perform discovery for SLI4 loopback diagnostic test */1521 if ((phba->sli_rev == LPFC_SLI_REV4) &&1522 !test_bit(HBA_FCOE_MODE, &phba->hba_flag) &&1523 (phba->link_flag & LS_LOOPBACK_MODE))1524 return;1525 1526 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&1527 test_bit(FC_PUBLIC_LOOP, &vport->fc_flag) &&1528 !test_bit(FC_LBIT, &vport->fc_flag)) {1529 /* Need to wait for FAN - use discovery timer1530 * for timeout. port_state is identically1531 * LPFC_LOCAL_CFG_LINK while waiting for FAN1532 */1533 lpfc_set_disctmo(vport);1534 return;1535 }1536 1537 /* Start discovery by sending a FLOGI. port_state is identically1538 * LPFC_FLOGI while waiting for FLOGI cmpl.1539 */1540 if (vport->port_state != LPFC_FLOGI) {1541 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if1542 * bb-credit recovery is in place.1543 */1544 if (phba->bbcredit_support && phba->cfg_enable_bbcr &&1545 !(phba->link_flag & LS_LOOPBACK_MODE)) {1546 sparam_mb = mempool_alloc(phba->mbox_mem_pool,1547 GFP_KERNEL);1548 if (!sparam_mb)1549 goto sparam_out;1550 1551 rc = lpfc_read_sparam(phba, sparam_mb, 0);1552 if (rc) {1553 mempool_free(sparam_mb, phba->mbox_mem_pool);1554 goto sparam_out;1555 }1556 sparam_mb->vport = vport;1557 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;1558 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT);1559 if (rc == MBX_NOT_FINISHED) {1560 lpfc_mbox_rsrc_cleanup(phba, sparam_mb,1561 MBOX_THD_UNLOCKED);1562 goto sparam_out;1563 }1564 1565 set_bit(HBA_DEFER_FLOGI, &phba->hba_flag);1566 } else {1567 lpfc_initial_flogi(vport);1568 }1569 } else {1570 if (test_bit(FC_PT2PT, &vport->fc_flag))1571 lpfc_disc_start(vport);1572 }1573 return;1574 1575out:1576 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,1577 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n",1578 status, vport->port_state);1579 1580sparam_out:1581 lpfc_linkdown(phba);1582 1583 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,1584 "0200 CONFIG_LINK bad hba state x%x\n",1585 vport->port_state);1586 1587 lpfc_issue_clear_la(phba, vport);1588 return;1589}1590 1591/**1592 * lpfc_sli4_clear_fcf_rr_bmask1593 * @phba: pointer to the struct lpfc_hba for this port.1594 * This fucnction resets the round robin bit mask and clears the1595 * fcf priority list. The list deletions are done while holding the1596 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared1597 * from the lpfc_fcf_pri record.1598 **/1599void1600lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)1601{1602 struct lpfc_fcf_pri *fcf_pri;1603 struct lpfc_fcf_pri *next_fcf_pri;1604 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));1605 spin_lock_irq(&phba->hbalock);1606 list_for_each_entry_safe(fcf_pri, next_fcf_pri,1607 &phba->fcf.fcf_pri_list, list) {1608 list_del_init(&fcf_pri->list);1609 fcf_pri->fcf_rec.flag = 0;1610 }1611 spin_unlock_irq(&phba->hbalock);1612}1613static void1614lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)1615{1616 struct lpfc_vport *vport = mboxq->vport;1617 1618 if (mboxq->u.mb.mbxStatus) {1619 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,1620 "2017 REG_FCFI mbxStatus error x%x "1621 "HBA state x%x\n", mboxq->u.mb.mbxStatus,1622 vport->port_state);1623 goto fail_out;1624 }1625 1626 /* Start FCoE discovery by sending a FLOGI. */1627 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);1628 /* Set the FCFI registered flag */1629 spin_lock_irq(&phba->hbalock);1630 phba->fcf.fcf_flag |= FCF_REGISTERED;1631 spin_unlock_irq(&phba->hbalock);1632 1633 /* If there is a pending FCoE event, restart FCF table scan. */1634 if (!test_bit(FCF_RR_INPROG, &phba->hba_flag) &&1635 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))1636 goto fail_out;1637 1638 /* Mark successful completion of FCF table scan */1639 spin_lock_irq(&phba->hbalock);1640 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);1641 spin_unlock_irq(&phba->hbalock);1642 clear_bit(FCF_TS_INPROG, &phba->hba_flag);1643 if (vport->port_state != LPFC_FLOGI) {1644 set_bit(FCF_RR_INPROG, &phba->hba_flag);1645 lpfc_issue_init_vfi(vport);1646 }1647 goto out;1648 1649fail_out:1650 clear_bit(FCF_RR_INPROG, &phba->hba_flag);1651out:1652 mempool_free(mboxq, phba->mbox_mem_pool);1653}1654 1655/**1656 * lpfc_fab_name_match - Check if the fcf fabric name match.1657 * @fab_name: pointer to fabric name.1658 * @new_fcf_record: pointer to fcf record.1659 *1660 * This routine compare the fcf record's fabric name with provided1661 * fabric name. If the fabric name are identical this function1662 * returns 1 else return 0.1663 **/1664static uint32_t1665lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)1666{1667 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))1668 return 0;1669 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))1670 return 0;1671 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))1672 return 0;1673 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))1674 return 0;1675 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))1676 return 0;1677 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))1678 return 0;1679 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))1680 return 0;1681 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))1682 return 0;1683 return 1;1684}1685 1686/**1687 * lpfc_sw_name_match - Check if the fcf switch name match.1688 * @sw_name: pointer to switch name.1689 * @new_fcf_record: pointer to fcf record.1690 *1691 * This routine compare the fcf record's switch name with provided1692 * switch name. If the switch name are identical this function1693 * returns 1 else return 0.1694 **/1695static uint32_t1696lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)1697{1698 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))1699 return 0;1700 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))1701 return 0;1702 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))1703 return 0;1704 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))1705 return 0;1706 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))1707 return 0;1708 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))1709 return 0;1710 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))1711 return 0;1712 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))1713 return 0;1714 return 1;1715}1716 1717/**1718 * lpfc_mac_addr_match - Check if the fcf mac address match.1719 * @mac_addr: pointer to mac address.1720 * @new_fcf_record: pointer to fcf record.1721 *1722 * This routine compare the fcf record's mac address with HBA's1723 * FCF mac address. If the mac addresses are identical this function1724 * returns 1 else return 0.1725 **/1726static uint32_t1727lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)1728{1729 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))1730 return 0;1731 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))1732 return 0;1733 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))1734 return 0;1735 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))1736 return 0;1737 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))1738 return 0;1739 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))1740 return 0;1741 return 1;1742}1743 1744static bool1745lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)1746{1747 return (curr_vlan_id == new_vlan_id);1748}1749 1750/**1751 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.1752 * @phba: pointer to lpfc hba data structure.1753 * @fcf_index: Index for the lpfc_fcf_record.1754 * @new_fcf_record: pointer to hba fcf record.1755 *1756 * This routine updates the driver FCF priority record from the new HBA FCF1757 * record. The hbalock is asserted held in the code path calling this1758 * routine.1759 **/1760static void1761__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,1762 struct fcf_record *new_fcf_record1763 )1764{1765 struct lpfc_fcf_pri *fcf_pri;1766 1767 fcf_pri = &phba->fcf.fcf_pri[fcf_index];1768 fcf_pri->fcf_rec.fcf_index = fcf_index;1769 /* FCF record priority */1770 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;1771 1772}1773 1774/**1775 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.1776 * @fcf_rec: pointer to driver fcf record.1777 * @new_fcf_record: pointer to fcf record.1778 *1779 * This routine copies the FCF information from the FCF1780 * record to lpfc_hba data structure.1781 **/1782static void1783lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,1784 struct fcf_record *new_fcf_record)1785{1786 /* Fabric name */1787 fcf_rec->fabric_name[0] =1788 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);1789 fcf_rec->fabric_name[1] =1790 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);1791 fcf_rec->fabric_name[2] =1792 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);1793 fcf_rec->fabric_name[3] =1794 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);1795 fcf_rec->fabric_name[4] =1796 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);1797 fcf_rec->fabric_name[5] =1798 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);1799 fcf_rec->fabric_name[6] =1800 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);1801 fcf_rec->fabric_name[7] =1802 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);1803 /* Mac address */1804 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);1805 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);1806 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);1807 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);1808 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);1809 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);1810 /* FCF record index */1811 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);1812 /* FCF record priority */1813 fcf_rec->priority = new_fcf_record->fip_priority;1814 /* Switch name */1815 fcf_rec->switch_name[0] =1816 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);1817 fcf_rec->switch_name[1] =1818 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);1819 fcf_rec->switch_name[2] =1820 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);1821 fcf_rec->switch_name[3] =1822 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);1823 fcf_rec->switch_name[4] =1824 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);1825 fcf_rec->switch_name[5] =1826 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);1827 fcf_rec->switch_name[6] =1828 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);1829 fcf_rec->switch_name[7] =1830 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);1831}1832 1833/**1834 * __lpfc_update_fcf_record - Update driver fcf record1835 * @phba: pointer to lpfc hba data structure.1836 * @fcf_rec: pointer to driver fcf record.1837 * @new_fcf_record: pointer to hba fcf record.1838 * @addr_mode: address mode to be set to the driver fcf record.1839 * @vlan_id: vlan tag to be set to the driver fcf record.1840 * @flag: flag bits to be set to the driver fcf record.1841 *1842 * This routine updates the driver FCF record from the new HBA FCF record1843 * together with the address mode, vlan_id, and other informations. This1844 * routine is called with the hbalock held.1845 **/1846static void1847__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,1848 struct fcf_record *new_fcf_record, uint32_t addr_mode,1849 uint16_t vlan_id, uint32_t flag)1850{1851 lockdep_assert_held(&phba->hbalock);1852 1853 /* Copy the fields from the HBA's FCF record */1854 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);1855 /* Update other fields of driver FCF record */1856 fcf_rec->addr_mode = addr_mode;1857 fcf_rec->vlan_id = vlan_id;1858 fcf_rec->flag |= (flag | RECORD_VALID);1859 __lpfc_update_fcf_record_pri(phba,1860 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),1861 new_fcf_record);1862}1863 1864/**1865 * lpfc_register_fcf - Register the FCF with hba.1866 * @phba: pointer to lpfc hba data structure.1867 *1868 * This routine issues a register fcfi mailbox command to register1869 * the fcf with HBA.1870 **/1871static void1872lpfc_register_fcf(struct lpfc_hba *phba)1873{1874 LPFC_MBOXQ_t *fcf_mbxq;1875 int rc;1876 1877 spin_lock_irq(&phba->hbalock);1878 /* If the FCF is not available do nothing. */1879 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {1880 spin_unlock_irq(&phba->hbalock);1881 clear_bit(FCF_TS_INPROG, &phba->hba_flag);1882 clear_bit(FCF_RR_INPROG, &phba->hba_flag);1883 return;1884 }1885 1886 /* The FCF is already registered, start discovery */1887 if (phba->fcf.fcf_flag & FCF_REGISTERED) {1888 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);1889 spin_unlock_irq(&phba->hbalock);1890 clear_bit(FCF_TS_INPROG, &phba->hba_flag);1891 if (phba->pport->port_state != LPFC_FLOGI &&1892 test_bit(FC_FABRIC, &phba->pport->fc_flag)) {1893 set_bit(FCF_RR_INPROG, &phba->hba_flag);1894 lpfc_initial_flogi(phba->pport);1895 return;1896 }1897 return;1898 }1899 spin_unlock_irq(&phba->hbalock);1900 1901 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);1902 if (!fcf_mbxq) {1903 clear_bit(FCF_TS_INPROG, &phba->hba_flag);1904 clear_bit(FCF_RR_INPROG, &phba->hba_flag);1905 return;1906 }1907 1908 lpfc_reg_fcfi(phba, fcf_mbxq);1909 fcf_mbxq->vport = phba->pport;1910 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;1911 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);1912 if (rc == MBX_NOT_FINISHED) {1913 clear_bit(FCF_TS_INPROG, &phba->hba_flag);1914 clear_bit(FCF_RR_INPROG, &phba->hba_flag);1915 mempool_free(fcf_mbxq, phba->mbox_mem_pool);1916 }1917 1918 return;1919}1920 1921/**1922 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.1923 * @phba: pointer to lpfc hba data structure.1924 * @new_fcf_record: pointer to fcf record.1925 * @boot_flag: Indicates if this record used by boot bios.1926 * @addr_mode: The address mode to be used by this FCF1927 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.1928 *1929 * This routine compare the fcf record with connect list obtained from the1930 * config region to decide if this FCF can be used for SAN discovery. It returns1931 * 1 if this record can be used for SAN discovery else return zero. If this FCF1932 * record can be used for SAN discovery, the boot_flag will indicate if this FCF1933 * is used by boot bios and addr_mode will indicate the addressing mode to be1934 * used for this FCF when the function returns.1935 * If the FCF record need to be used with a particular vlan id, the vlan is1936 * set in the vlan_id on return of the function. If not VLAN tagging need to1937 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;1938 **/1939static int1940lpfc_match_fcf_conn_list(struct lpfc_hba *phba,1941 struct fcf_record *new_fcf_record,1942 uint32_t *boot_flag, uint32_t *addr_mode,1943 uint16_t *vlan_id)1944{1945 struct lpfc_fcf_conn_entry *conn_entry;1946 int i, j, fcf_vlan_id = 0;1947 1948 /* Find the lowest VLAN id in the FCF record */1949 for (i = 0; i < 512; i++) {1950 if (new_fcf_record->vlan_bitmap[i]) {1951 fcf_vlan_id = i * 8;1952 j = 0;1953 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {1954 j++;1955 fcf_vlan_id++;1956 }1957 break;1958 }1959 }1960 1961 /* FCF not valid/available or solicitation in progress */1962 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||1963 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||1964 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))1965 return 0;1966 1967 if (!test_bit(HBA_FIP_SUPPORT, &phba->hba_flag)) {1968 *boot_flag = 0;1969 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,1970 new_fcf_record);1971 if (phba->valid_vlan)1972 *vlan_id = phba->vlan_id;1973 else1974 *vlan_id = LPFC_FCOE_NULL_VID;1975 return 1;1976 }1977 1978 /*1979 * If there are no FCF connection table entry, driver connect to all1980 * FCFs.1981 */1982 if (list_empty(&phba->fcf_conn_rec_list)) {1983 *boot_flag = 0;1984 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,1985 new_fcf_record);1986 1987 /*1988 * When there are no FCF connect entries, use driver's default1989 * addressing mode - FPMA.1990 */1991 if (*addr_mode & LPFC_FCF_FPMA)1992 *addr_mode = LPFC_FCF_FPMA;1993 1994 /* If FCF record report a vlan id use that vlan id */1995 if (fcf_vlan_id)1996 *vlan_id = fcf_vlan_id;1997 else1998 *vlan_id = LPFC_FCOE_NULL_VID;1999 return 1;2000 }2001 2002 list_for_each_entry(conn_entry,2003 &phba->fcf_conn_rec_list, list) {2004 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))2005 continue;2006 2007 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&2008 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,2009 new_fcf_record))2010 continue;2011 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&2012 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,2013 new_fcf_record))2014 continue;2015 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {2016 /*2017 * If the vlan bit map does not have the bit set for the2018 * vlan id to be used, then it is not a match.2019 */2020 if (!(new_fcf_record->vlan_bitmap2021 [conn_entry->conn_rec.vlan_tag / 8] &2022 (1 << (conn_entry->conn_rec.vlan_tag % 8))))2023 continue;2024 }2025 2026 /*2027 * If connection record does not support any addressing mode,2028 * skip the FCF record.2029 */2030 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)2031 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))2032 continue;2033 2034 /*2035 * Check if the connection record specifies a required2036 * addressing mode.2037 */2038 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&2039 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {2040 2041 /*2042 * If SPMA required but FCF not support this continue.2043 */2044 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&2045 !(bf_get(lpfc_fcf_record_mac_addr_prov,2046 new_fcf_record) & LPFC_FCF_SPMA))2047 continue;2048 2049 /*2050 * If FPMA required but FCF not support this continue.2051 */2052 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&2053 !(bf_get(lpfc_fcf_record_mac_addr_prov,2054 new_fcf_record) & LPFC_FCF_FPMA))2055 continue;2056 }2057 2058 /*2059 * This fcf record matches filtering criteria.2060 */2061 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)2062 *boot_flag = 1;2063 else2064 *boot_flag = 0;2065 2066 /*2067 * If user did not specify any addressing mode, or if the2068 * preferred addressing mode specified by user is not supported2069 * by FCF, allow fabric to pick the addressing mode.2070 */2071 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,2072 new_fcf_record);2073 /*2074 * If the user specified a required address mode, assign that2075 * address mode2076 */2077 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&2078 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))2079 *addr_mode = (conn_entry->conn_rec.flags &2080 FCFCNCT_AM_SPMA) ?2081 LPFC_FCF_SPMA : LPFC_FCF_FPMA;2082 /*2083 * If the user specified a preferred address mode, use the2084 * addr mode only if FCF support the addr_mode.2085 */2086 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&2087 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&2088 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&2089 (*addr_mode & LPFC_FCF_SPMA))2090 *addr_mode = LPFC_FCF_SPMA;2091 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&2092 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&2093 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&2094 (*addr_mode & LPFC_FCF_FPMA))2095 *addr_mode = LPFC_FCF_FPMA;2096 2097 /* If matching connect list has a vlan id, use it */2098 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)2099 *vlan_id = conn_entry->conn_rec.vlan_tag;2100 /*2101 * If no vlan id is specified in connect list, use the vlan id2102 * in the FCF record2103 */2104 else if (fcf_vlan_id)2105 *vlan_id = fcf_vlan_id;2106 else2107 *vlan_id = LPFC_FCOE_NULL_VID;2108 2109 return 1;2110 }2111 2112 return 0;2113}2114 2115/**2116 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.2117 * @phba: pointer to lpfc hba data structure.2118 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.2119 *2120 * This function check if there is any fcoe event pending while driver2121 * scan FCF entries. If there is any pending event, it will restart the2122 * FCF saning and return 1 else return 0.2123 */2124int2125lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)2126{2127 /*2128 * If the Link is up and no FCoE events while in the2129 * FCF discovery, no need to restart FCF discovery.2130 */2131 if ((phba->link_state >= LPFC_LINK_UP) &&2132 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))2133 return 0;2134 2135 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2136 "2768 Pending link or FCF event during current "2137 "handling of the previous event: link_state:x%x, "2138 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",2139 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,2140 phba->fcoe_eventtag);2141 2142 spin_lock_irq(&phba->hbalock);2143 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;2144 spin_unlock_irq(&phba->hbalock);2145 2146 if (phba->link_state >= LPFC_LINK_UP) {2147 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,2148 "2780 Restart FCF table scan due to "2149 "pending FCF event:evt_tag_at_scan:x%x, "2150 "evt_tag_current:x%x\n",2151 phba->fcoe_eventtag_at_fcf_scan,2152 phba->fcoe_eventtag);2153 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);2154 } else {2155 /*2156 * Do not continue FCF discovery and clear FCF_TS_INPROG2157 * flag2158 */2159 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,2160 "2833 Stop FCF discovery process due to link "2161 "state change (x%x)\n", phba->link_state);2162 clear_bit(FCF_TS_INPROG, &phba->hba_flag);2163 clear_bit(FCF_RR_INPROG, &phba->hba_flag);2164 spin_lock_irq(&phba->hbalock);2165 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);2166 spin_unlock_irq(&phba->hbalock);2167 }2168 2169 /* Unregister the currently registered FCF if required */2170 if (unreg_fcf) {2171 spin_lock_irq(&phba->hbalock);2172 phba->fcf.fcf_flag &= ~FCF_REGISTERED;2173 spin_unlock_irq(&phba->hbalock);2174 lpfc_sli4_unregister_fcf(phba);2175 }2176 return 1;2177}2178 2179/**2180 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record2181 * @phba: pointer to lpfc hba data structure.2182 * @fcf_cnt: number of eligible fcf record seen so far.2183 *2184 * This function makes an running random selection decision on FCF record to2185 * use through a sequence of @fcf_cnt eligible FCF records with equal2186 * probability. To perform integer manunipulation of random numbers with2187 * size unit32_t, a 16-bit random number returned from get_random_u16() is2188 * taken as the random random number generated.2189 *2190 * Returns true when outcome is for the newly read FCF record should be2191 * chosen; otherwise, return false when outcome is for keeping the previously2192 * chosen FCF record.2193 **/2194static bool2195lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)2196{2197 uint32_t rand_num;2198 2199 /* Get 16-bit uniform random number */2200 rand_num = get_random_u16();2201 2202 /* Decision with probability 1/fcf_cnt */2203 if ((fcf_cnt * rand_num) < 0xFFFF)2204 return true;2205 else2206 return false;2207}2208 2209/**2210 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.2211 * @phba: pointer to lpfc hba data structure.2212 * @mboxq: pointer to mailbox object.2213 * @next_fcf_index: pointer to holder of next fcf index.2214 *2215 * This routine parses the non-embedded fcf mailbox command by performing the2216 * necessarily error checking, non-embedded read FCF record mailbox command2217 * SGE parsing, and endianness swapping.2218 *2219 * Returns the pointer to the new FCF record in the non-embedded mailbox2220 * command DMA memory if successfully, other NULL.2221 */2222static struct fcf_record *2223lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,2224 uint16_t *next_fcf_index)2225{2226 void *virt_addr;2227 struct lpfc_mbx_sge sge;2228 struct lpfc_mbx_read_fcf_tbl *read_fcf;2229 uint32_t shdr_status, shdr_add_status, if_type;2230 union lpfc_sli4_cfg_shdr *shdr;2231 struct fcf_record *new_fcf_record;2232 2233 /* Get the first SGE entry from the non-embedded DMA memory. This2234 * routine only uses a single SGE.2235 */2236 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);2237 if (unlikely(!mboxq->sge_array)) {2238 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,2239 "2524 Failed to get the non-embedded SGE "2240 "virtual address\n");2241 return NULL;2242 }2243 virt_addr = mboxq->sge_array->addr[0];2244 2245 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;2246 lpfc_sli_pcimem_bcopy(shdr, shdr,2247 sizeof(union lpfc_sli4_cfg_shdr));2248 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);2249 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);2250 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);2251 if (shdr_status || shdr_add_status) {2252 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||2253 if_type == LPFC_SLI_INTF_IF_TYPE_2)2254 lpfc_printf_log(phba, KERN_ERR,2255 LOG_TRACE_EVENT,2256 "2726 READ_FCF_RECORD Indicates empty "2257 "FCF table.\n");2258 else2259 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,2260 "2521 READ_FCF_RECORD mailbox failed "2261 "with status x%x add_status x%x, "2262 "mbx\n", shdr_status, shdr_add_status);2263 return NULL;2264 }2265 2266 /* Interpreting the returned information of the FCF record */2267 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;2268 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,2269 sizeof(struct lpfc_mbx_read_fcf_tbl));2270 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);2271 new_fcf_record = (struct fcf_record *)(virt_addr +2272 sizeof(struct lpfc_mbx_read_fcf_tbl));2273 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,2274 offsetof(struct fcf_record, vlan_bitmap));2275 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);2276 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);2277 2278 return new_fcf_record;2279}2280 2281/**2282 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record2283 * @phba: pointer to lpfc hba data structure.2284 * @fcf_record: pointer to the fcf record.2285 * @vlan_id: the lowest vlan identifier associated to this fcf record.2286 * @next_fcf_index: the index to the next fcf record in hba's fcf table.2287 *2288 * This routine logs the detailed FCF record if the LOG_FIP loggin is2289 * enabled.2290 **/2291static void2292lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,2293 struct fcf_record *fcf_record,2294 uint16_t vlan_id,2295 uint16_t next_fcf_index)2296{2297 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2298 "2764 READ_FCF_RECORD:\n"2299 "\tFCF_Index : x%x\n"2300 "\tFCF_Avail : x%x\n"2301 "\tFCF_Valid : x%x\n"2302 "\tFCF_SOL : x%x\n"2303 "\tFIP_Priority : x%x\n"2304 "\tMAC_Provider : x%x\n"2305 "\tLowest VLANID : x%x\n"2306 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"2307 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"2308 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"2309 "\tNext_FCF_Index: x%x\n",2310 bf_get(lpfc_fcf_record_fcf_index, fcf_record),2311 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),2312 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),2313 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),2314 fcf_record->fip_priority,2315 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),2316 vlan_id,2317 bf_get(lpfc_fcf_record_mac_0, fcf_record),2318 bf_get(lpfc_fcf_record_mac_1, fcf_record),2319 bf_get(lpfc_fcf_record_mac_2, fcf_record),2320 bf_get(lpfc_fcf_record_mac_3, fcf_record),2321 bf_get(lpfc_fcf_record_mac_4, fcf_record),2322 bf_get(lpfc_fcf_record_mac_5, fcf_record),2323 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),2324 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),2325 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),2326 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),2327 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),2328 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),2329 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),2330 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),2331 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),2332 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),2333 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),2334 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),2335 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),2336 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),2337 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),2338 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),2339 next_fcf_index);2340}2341 2342/**2343 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF2344 * @phba: pointer to lpfc hba data structure.2345 * @fcf_rec: pointer to an existing FCF record.2346 * @new_fcf_record: pointer to a new FCF record.2347 * @new_vlan_id: vlan id from the new FCF record.2348 *2349 * This function performs matching test of a new FCF record against an existing2350 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id2351 * will not be used as part of the FCF record matching criteria.2352 *2353 * Returns true if all the fields matching, otherwise returns false.2354 */2355static bool2356lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,2357 struct lpfc_fcf_rec *fcf_rec,2358 struct fcf_record *new_fcf_record,2359 uint16_t new_vlan_id)2360{2361 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)2362 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))2363 return false;2364 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))2365 return false;2366 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))2367 return false;2368 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))2369 return false;2370 if (fcf_rec->priority != new_fcf_record->fip_priority)2371 return false;2372 return true;2373}2374 2375/**2376 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf2377 * @vport: Pointer to vport object.2378 * @fcf_index: index to next fcf.2379 *2380 * This function processing the roundrobin fcf failover to next fcf index.2381 * When this function is invoked, there will be a current fcf registered2382 * for flogi.2383 * Return: 0 for continue retrying flogi on currently registered fcf;2384 * 1 for stop flogi on currently registered fcf;2385 */2386int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)2387{2388 struct lpfc_hba *phba = vport->phba;2389 int rc;2390 2391 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {2392 if (test_bit(HBA_DEVLOSS_TMO, &phba->hba_flag)) {2393 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2394 "2872 Devloss tmo with no eligible "2395 "FCF, unregister in-use FCF (x%x) "2396 "and rescan FCF table\n",2397 phba->fcf.current_rec.fcf_indx);2398 lpfc_unregister_fcf_rescan(phba);2399 goto stop_flogi_current_fcf;2400 }2401 /* Mark the end to FLOGI roundrobin failover */2402 clear_bit(FCF_RR_INPROG, &phba->hba_flag);2403 /* Allow action to new fcf asynchronous event */2404 spin_lock_irq(&phba->hbalock);2405 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);2406 spin_unlock_irq(&phba->hbalock);2407 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2408 "2865 No FCF available, stop roundrobin FCF "2409 "failover and change port state:x%x/x%x\n",2410 phba->pport->port_state, LPFC_VPORT_UNKNOWN);2411 phba->pport->port_state = LPFC_VPORT_UNKNOWN;2412 2413 if (!phba->fcf.fcf_redisc_attempted) {2414 lpfc_unregister_fcf(phba);2415 2416 rc = lpfc_sli4_redisc_fcf_table(phba);2417 if (!rc) {2418 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2419 "3195 Rediscover FCF table\n");2420 phba->fcf.fcf_redisc_attempted = 1;2421 lpfc_sli4_clear_fcf_rr_bmask(phba);2422 } else {2423 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,2424 "3196 Rediscover FCF table "2425 "failed. Status:x%x\n", rc);2426 }2427 } else {2428 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,2429 "3197 Already rediscover FCF table "2430 "attempted. No more retry\n");2431 }2432 goto stop_flogi_current_fcf;2433 } else {2434 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,2435 "2794 Try FLOGI roundrobin FCF failover to "2436 "(x%x)\n", fcf_index);2437 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);2438 if (rc)2439 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,2440 "2761 FLOGI roundrobin FCF failover "2441 "failed (rc:x%x) to read FCF (x%x)\n",2442 rc, phba->fcf.current_rec.fcf_indx);2443 else2444 goto stop_flogi_current_fcf;2445 }2446 return 0;2447 2448stop_flogi_current_fcf:2449 lpfc_can_disctmo(vport);2450 return 1;2451}2452 2453/**2454 * lpfc_sli4_fcf_pri_list_del2455 * @phba: pointer to lpfc hba data structure.2456 * @fcf_index: the index of the fcf record to delete2457 * This routine checks the on list flag of the fcf_index to be deleted.2458 * If it is one the list then it is removed from the list, and the flag2459 * is cleared. This routine grab the hbalock before removing the fcf2460 * record from the list.2461 **/2462static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,2463 uint16_t fcf_index)2464{2465 struct lpfc_fcf_pri *new_fcf_pri;2466 2467 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];2468 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2469 "3058 deleting idx x%x pri x%x flg x%x\n",2470 fcf_index, new_fcf_pri->fcf_rec.priority,2471 new_fcf_pri->fcf_rec.flag);2472 spin_lock_irq(&phba->hbalock);2473 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {2474 if (phba->fcf.current_rec.priority ==2475 new_fcf_pri->fcf_rec.priority)2476 phba->fcf.eligible_fcf_cnt--;2477 list_del_init(&new_fcf_pri->list);2478 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;2479 }2480 spin_unlock_irq(&phba->hbalock);2481}2482 2483/**2484 * lpfc_sli4_set_fcf_flogi_fail2485 * @phba: pointer to lpfc hba data structure.2486 * @fcf_index: the index of the fcf record to update2487 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED2488 * flag so the round robin selection for the particular priority level2489 * will try a different fcf record that does not have this bit set.2490 * If the fcf record is re-read for any reason this flag is cleared brfore2491 * adding it to the priority list.2492 **/2493void2494lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)2495{2496 struct lpfc_fcf_pri *new_fcf_pri;2497 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];2498 spin_lock_irq(&phba->hbalock);2499 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;2500 spin_unlock_irq(&phba->hbalock);2501}2502 2503/**2504 * lpfc_sli4_fcf_pri_list_add2505 * @phba: pointer to lpfc hba data structure.2506 * @fcf_index: the index of the fcf record to add2507 * @new_fcf_record: pointer to a new FCF record.2508 * This routine checks the priority of the fcf_index to be added.2509 * If it is a lower priority than the current head of the fcf_pri list2510 * then it is added to the list in the right order.2511 * If it is the same priority as the current head of the list then it2512 * is added to the head of the list and its bit in the rr_bmask is set.2513 * If the fcf_index to be added is of a higher priority than the current2514 * head of the list then the rr_bmask is cleared, its bit is set in the2515 * rr_bmask and it is added to the head of the list.2516 * returns:2517 * 0=success 1=failure2518 **/2519static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,2520 uint16_t fcf_index,2521 struct fcf_record *new_fcf_record)2522{2523 uint16_t current_fcf_pri;2524 uint16_t last_index;2525 struct lpfc_fcf_pri *fcf_pri;2526 struct lpfc_fcf_pri *next_fcf_pri;2527 struct lpfc_fcf_pri *new_fcf_pri;2528 int ret;2529 2530 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];2531 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2532 "3059 adding idx x%x pri x%x flg x%x\n",2533 fcf_index, new_fcf_record->fip_priority,2534 new_fcf_pri->fcf_rec.flag);2535 spin_lock_irq(&phba->hbalock);2536 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)2537 list_del_init(&new_fcf_pri->list);2538 new_fcf_pri->fcf_rec.fcf_index = fcf_index;2539 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;2540 if (list_empty(&phba->fcf.fcf_pri_list)) {2541 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);2542 ret = lpfc_sli4_fcf_rr_index_set(phba,2543 new_fcf_pri->fcf_rec.fcf_index);2544 goto out;2545 }2546 2547 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,2548 LPFC_SLI4_FCF_TBL_INDX_MAX);2549 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {2550 ret = 0; /* Empty rr list */2551 goto out;2552 }2553 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;2554 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {2555 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);2556 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {2557 memset(phba->fcf.fcf_rr_bmask, 0,2558 sizeof(*phba->fcf.fcf_rr_bmask));2559 /* fcfs_at_this_priority_level = 1; */2560 phba->fcf.eligible_fcf_cnt = 1;2561 } else2562 /* fcfs_at_this_priority_level++; */2563 phba->fcf.eligible_fcf_cnt++;2564 ret = lpfc_sli4_fcf_rr_index_set(phba,2565 new_fcf_pri->fcf_rec.fcf_index);2566 goto out;2567 }2568 2569 list_for_each_entry_safe(fcf_pri, next_fcf_pri,2570 &phba->fcf.fcf_pri_list, list) {2571 if (new_fcf_pri->fcf_rec.priority <=2572 fcf_pri->fcf_rec.priority) {2573 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)2574 list_add(&new_fcf_pri->list,2575 &phba->fcf.fcf_pri_list);2576 else2577 list_add(&new_fcf_pri->list,2578 &((struct lpfc_fcf_pri *)2579 fcf_pri->list.prev)->list);2580 ret = 0;2581 goto out;2582 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list2583 || new_fcf_pri->fcf_rec.priority <2584 next_fcf_pri->fcf_rec.priority) {2585 list_add(&new_fcf_pri->list, &fcf_pri->list);2586 ret = 0;2587 goto out;2588 }2589 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)2590 continue;2591 2592 }2593 ret = 1;2594out:2595 /* we use = instead of |= to clear the FLOGI_FAILED flag. */2596 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;2597 spin_unlock_irq(&phba->hbalock);2598 return ret;2599}2600 2601/**2602 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.2603 * @phba: pointer to lpfc hba data structure.2604 * @mboxq: pointer to mailbox object.2605 *2606 * This function iterates through all the fcf records available in2607 * HBA and chooses the optimal FCF record for discovery. After finding2608 * the FCF for discovery it registers the FCF record and kicks start2609 * discovery.2610 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to2611 * use an FCF record which matches fabric name and mac address of the2612 * currently used FCF record.2613 * If the driver supports only one FCF, it will try to use the FCF record2614 * used by BOOT_BIOS.2615 */2616void2617lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)2618{2619 struct fcf_record *new_fcf_record;2620 uint32_t boot_flag, addr_mode;2621 uint16_t fcf_index, next_fcf_index;2622 struct lpfc_fcf_rec *fcf_rec = NULL;2623 uint16_t vlan_id = LPFC_FCOE_NULL_VID;2624 bool select_new_fcf;2625 int rc;2626 2627 /* If there is pending FCoE event restart FCF table scan */2628 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {2629 lpfc_sli4_mbox_cmd_free(phba, mboxq);2630 return;2631 }2632 2633 /* Parse the FCF record from the non-embedded mailbox command */2634 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,2635 &next_fcf_index);2636 if (!new_fcf_record) {2637 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,2638 "2765 Mailbox command READ_FCF_RECORD "2639 "failed to retrieve a FCF record.\n");2640 /* Let next new FCF event trigger fast failover */2641 clear_bit(FCF_TS_INPROG, &phba->hba_flag);2642 lpfc_sli4_mbox_cmd_free(phba, mboxq);2643 return;2644 }2645 2646 /* Check the FCF record against the connection list */2647 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,2648 &addr_mode, &vlan_id);2649 2650 /* Log the FCF record information if turned on */2651 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,2652 next_fcf_index);2653 2654 /*2655 * If the fcf record does not match with connect list entries2656 * read the next entry; otherwise, this is an eligible FCF2657 * record for roundrobin FCF failover.2658 */2659 if (!rc) {2660 lpfc_sli4_fcf_pri_list_del(phba,2661 bf_get(lpfc_fcf_record_fcf_index,2662 new_fcf_record));2663 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,2664 "2781 FCF (x%x) failed connection "2665 "list check: (x%x/x%x/%x)\n",2666 bf_get(lpfc_fcf_record_fcf_index,2667 new_fcf_record),2668 bf_get(lpfc_fcf_record_fcf_avail,2669 new_fcf_record),2670 bf_get(lpfc_fcf_record_fcf_valid,2671 new_fcf_record),2672 bf_get(lpfc_fcf_record_fcf_sol,2673 new_fcf_record));2674 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&2675 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,2676 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {2677 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=2678 phba->fcf.current_rec.fcf_indx) {2679 lpfc_printf_log(phba, KERN_ERR,2680 LOG_TRACE_EVENT,2681 "2862 FCF (x%x) matches property "2682 "of in-use FCF (x%x)\n",2683 bf_get(lpfc_fcf_record_fcf_index,2684 new_fcf_record),2685 phba->fcf.current_rec.fcf_indx);2686 goto read_next_fcf;2687 }2688 /*2689 * In case the current in-use FCF record becomes2690 * invalid/unavailable during FCF discovery that2691 * was not triggered by fast FCF failover process,2692 * treat it as fast FCF failover.2693 */2694 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&2695 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {2696 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,2697 "2835 Invalid in-use FCF "2698 "(x%x), enter FCF failover "2699 "table scan.\n",2700 phba->fcf.current_rec.fcf_indx);2701 spin_lock_irq(&phba->hbalock);2702 phba->fcf.fcf_flag |= FCF_REDISC_FOV;2703 spin_unlock_irq(&phba->hbalock);2704 lpfc_sli4_mbox_cmd_free(phba, mboxq);2705 lpfc_sli4_fcf_scan_read_fcf_rec(phba,2706 LPFC_FCOE_FCF_GET_FIRST);2707 return;2708 }2709 }2710 goto read_next_fcf;2711 } else {2712 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);2713 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,2714 new_fcf_record);2715 if (rc)2716 goto read_next_fcf;2717 }2718 2719 /*2720 * If this is not the first FCF discovery of the HBA, use last2721 * FCF record for the discovery. The condition that a rescan2722 * matches the in-use FCF record: fabric name, switch name, mac2723 * address, and vlan_id.2724 */2725 spin_lock_irq(&phba->hbalock);2726 if (phba->fcf.fcf_flag & FCF_IN_USE) {2727 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&2728 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,2729 new_fcf_record, vlan_id)) {2730 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==2731 phba->fcf.current_rec.fcf_indx) {2732 phba->fcf.fcf_flag |= FCF_AVAILABLE;2733 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)2734 /* Stop FCF redisc wait timer */2735 __lpfc_sli4_stop_fcf_redisc_wait_timer(2736 phba);2737 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)2738 /* Fast failover, mark completed */2739 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;2740 spin_unlock_irq(&phba->hbalock);2741 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2742 "2836 New FCF matches in-use "2743 "FCF (x%x), port_state:x%x, "2744 "fc_flag:x%lx\n",2745 phba->fcf.current_rec.fcf_indx,2746 phba->pport->port_state,2747 phba->pport->fc_flag);2748 goto out;2749 } else2750 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,2751 "2863 New FCF (x%x) matches "2752 "property of in-use FCF (x%x)\n",2753 bf_get(lpfc_fcf_record_fcf_index,2754 new_fcf_record),2755 phba->fcf.current_rec.fcf_indx);2756 }2757 /*2758 * Read next FCF record from HBA searching for the matching2759 * with in-use record only if not during the fast failover2760 * period. In case of fast failover period, it shall try to2761 * determine whether the FCF record just read should be the2762 * next candidate.2763 */2764 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {2765 spin_unlock_irq(&phba->hbalock);2766 goto read_next_fcf;2767 }2768 }2769 /*2770 * Update on failover FCF record only if it's in FCF fast-failover2771 * period; otherwise, update on current FCF record.2772 */2773 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)2774 fcf_rec = &phba->fcf.failover_rec;2775 else2776 fcf_rec = &phba->fcf.current_rec;2777 2778 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {2779 /*2780 * If the driver FCF record does not have boot flag2781 * set and new hba fcf record has boot flag set, use2782 * the new hba fcf record.2783 */2784 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {2785 /* Choose this FCF record */2786 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2787 "2837 Update current FCF record "2788 "(x%x) with new FCF record (x%x)\n",2789 fcf_rec->fcf_indx,2790 bf_get(lpfc_fcf_record_fcf_index,2791 new_fcf_record));2792 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,2793 addr_mode, vlan_id, BOOT_ENABLE);2794 spin_unlock_irq(&phba->hbalock);2795 goto read_next_fcf;2796 }2797 /*2798 * If the driver FCF record has boot flag set and the2799 * new hba FCF record does not have boot flag, read2800 * the next FCF record.2801 */2802 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {2803 spin_unlock_irq(&phba->hbalock);2804 goto read_next_fcf;2805 }2806 /*2807 * If the new hba FCF record has lower priority value2808 * than the driver FCF record, use the new record.2809 */2810 if (new_fcf_record->fip_priority < fcf_rec->priority) {2811 /* Choose the new FCF record with lower priority */2812 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2813 "2838 Update current FCF record "2814 "(x%x) with new FCF record (x%x)\n",2815 fcf_rec->fcf_indx,2816 bf_get(lpfc_fcf_record_fcf_index,2817 new_fcf_record));2818 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,2819 addr_mode, vlan_id, 0);2820 /* Reset running random FCF selection count */2821 phba->fcf.eligible_fcf_cnt = 1;2822 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {2823 /* Update running random FCF selection count */2824 phba->fcf.eligible_fcf_cnt++;2825 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,2826 phba->fcf.eligible_fcf_cnt);2827 if (select_new_fcf) {2828 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2829 "2839 Update current FCF record "2830 "(x%x) with new FCF record (x%x)\n",2831 fcf_rec->fcf_indx,2832 bf_get(lpfc_fcf_record_fcf_index,2833 new_fcf_record));2834 /* Choose the new FCF by random selection */2835 __lpfc_update_fcf_record(phba, fcf_rec,2836 new_fcf_record,2837 addr_mode, vlan_id, 0);2838 }2839 }2840 spin_unlock_irq(&phba->hbalock);2841 goto read_next_fcf;2842 }2843 /*2844 * This is the first suitable FCF record, choose this record for2845 * initial best-fit FCF.2846 */2847 if (fcf_rec) {2848 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2849 "2840 Update initial FCF candidate "2850 "with FCF (x%x)\n",2851 bf_get(lpfc_fcf_record_fcf_index,2852 new_fcf_record));2853 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,2854 addr_mode, vlan_id, (boot_flag ?2855 BOOT_ENABLE : 0));2856 phba->fcf.fcf_flag |= FCF_AVAILABLE;2857 /* Setup initial running random FCF selection count */2858 phba->fcf.eligible_fcf_cnt = 1;2859 }2860 spin_unlock_irq(&phba->hbalock);2861 goto read_next_fcf;2862 2863read_next_fcf:2864 lpfc_sli4_mbox_cmd_free(phba, mboxq);2865 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {2866 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {2867 /*2868 * Case of FCF fast failover scan2869 */2870 2871 /*2872 * It has not found any suitable FCF record, cancel2873 * FCF scan inprogress, and do nothing2874 */2875 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {2876 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,2877 "2782 No suitable FCF found: "2878 "(x%x/x%x)\n",2879 phba->fcoe_eventtag_at_fcf_scan,2880 bf_get(lpfc_fcf_record_fcf_index,2881 new_fcf_record));2882 if (test_bit(HBA_DEVLOSS_TMO,2883 &phba->hba_flag)) {2884 clear_bit(FCF_TS_INPROG,2885 &phba->hba_flag);2886 /* Unregister in-use FCF and rescan */2887 lpfc_printf_log(phba, KERN_INFO,2888 LOG_FIP,2889 "2864 On devloss tmo "2890 "unreg in-use FCF and "2891 "rescan FCF table\n");2892 lpfc_unregister_fcf_rescan(phba);2893 return;2894 }2895 /*2896 * Let next new FCF event trigger fast failover2897 */2898 clear_bit(FCF_TS_INPROG, &phba->hba_flag);2899 return;2900 }2901 /*2902 * It has found a suitable FCF record that is not2903 * the same as in-use FCF record, unregister the2904 * in-use FCF record, replace the in-use FCF record2905 * with the new FCF record, mark FCF fast failover2906 * completed, and then start register the new FCF2907 * record.2908 */2909 2910 /* Unregister the current in-use FCF record */2911 lpfc_unregister_fcf(phba);2912 2913 /* Replace in-use record with the new record */2914 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2915 "2842 Replace in-use FCF (x%x) "2916 "with failover FCF (x%x)\n",2917 phba->fcf.current_rec.fcf_indx,2918 phba->fcf.failover_rec.fcf_indx);2919 memcpy(&phba->fcf.current_rec,2920 &phba->fcf.failover_rec,2921 sizeof(struct lpfc_fcf_rec));2922 /*2923 * Mark the fast FCF failover rediscovery completed2924 * and the start of the first round of the roundrobin2925 * FCF failover.2926 */2927 spin_lock_irq(&phba->hbalock);2928 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;2929 spin_unlock_irq(&phba->hbalock);2930 /* Register to the new FCF record */2931 lpfc_register_fcf(phba);2932 } else {2933 /*2934 * In case of transaction period to fast FCF failover,2935 * do nothing when search to the end of the FCF table.2936 */2937 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||2938 (phba->fcf.fcf_flag & FCF_REDISC_PEND))2939 return;2940 2941 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&2942 phba->fcf.fcf_flag & FCF_IN_USE) {2943 /*2944 * In case the current in-use FCF record no2945 * longer existed during FCF discovery that2946 * was not triggered by fast FCF failover2947 * process, treat it as fast FCF failover.2948 */2949 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,2950 "2841 In-use FCF record (x%x) "2951 "not reported, entering fast "2952 "FCF failover mode scanning.\n",2953 phba->fcf.current_rec.fcf_indx);2954 spin_lock_irq(&phba->hbalock);2955 phba->fcf.fcf_flag |= FCF_REDISC_FOV;2956 spin_unlock_irq(&phba->hbalock);2957 lpfc_sli4_fcf_scan_read_fcf_rec(phba,2958 LPFC_FCOE_FCF_GET_FIRST);2959 return;2960 }2961 /* Register to the new FCF record */2962 lpfc_register_fcf(phba);2963 }2964 } else2965 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);2966 return;2967 2968out:2969 lpfc_sli4_mbox_cmd_free(phba, mboxq);2970 lpfc_register_fcf(phba);2971 2972 return;2973}2974 2975/**2976 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler2977 * @phba: pointer to lpfc hba data structure.2978 * @mboxq: pointer to mailbox object.2979 *2980 * This is the callback function for FLOGI failure roundrobin FCF failover2981 * read FCF record mailbox command from the eligible FCF record bmask for2982 * performing the failover. If the FCF read back is not valid/available, it2983 * fails through to retrying FLOGI to the currently registered FCF again.2984 * Otherwise, if the FCF read back is valid and available, it will set the2985 * newly read FCF record to the failover FCF record, unregister currently2986 * registered FCF record, copy the failover FCF record to the current2987 * FCF record, and then register the current FCF record before proceeding2988 * to trying FLOGI on the new failover FCF.2989 */2990void2991lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)2992{2993 struct fcf_record *new_fcf_record;2994 uint32_t boot_flag, addr_mode;2995 uint16_t next_fcf_index, fcf_index;2996 uint16_t current_fcf_index;2997 uint16_t vlan_id = LPFC_FCOE_NULL_VID;2998 int rc;2999 3000 /* If link state is not up, stop the roundrobin failover process */3001 if (phba->link_state < LPFC_LINK_UP) {3002 spin_lock_irq(&phba->hbalock);3003 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;3004 spin_unlock_irq(&phba->hbalock);3005 clear_bit(FCF_RR_INPROG, &phba->hba_flag);3006 goto out;3007 }3008 3009 /* Parse the FCF record from the non-embedded mailbox command */3010 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,3011 &next_fcf_index);3012 if (!new_fcf_record) {3013 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,3014 "2766 Mailbox command READ_FCF_RECORD "3015 "failed to retrieve a FCF record. "3016 "hba_flg x%lx fcf_flg x%x\n", phba->hba_flag,3017 phba->fcf.fcf_flag);3018 lpfc_unregister_fcf_rescan(phba);3019 goto out;3020 }3021 3022 /* Get the needed parameters from FCF record */3023 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,3024 &addr_mode, &vlan_id);3025 3026 /* Log the FCF record information if turned on */3027 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,3028 next_fcf_index);3029 3030 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);3031 if (!rc) {3032 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,3033 "2848 Remove ineligible FCF (x%x) from "3034 "from roundrobin bmask\n", fcf_index);3035 /* Clear roundrobin bmask bit for ineligible FCF */3036 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);3037 /* Perform next round of roundrobin FCF failover */3038 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);3039 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);3040 if (rc)3041 goto out;3042 goto error_out;3043 }3044 3045 if (fcf_index == phba->fcf.current_rec.fcf_indx) {3046 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,3047 "2760 Perform FLOGI roundrobin FCF failover: "3048 "FCF (x%x) back to FCF (x%x)\n",3049 phba->fcf.current_rec.fcf_indx, fcf_index);3050 /* Wait 500 ms before retrying FLOGI to current FCF */3051 msleep(500);3052 lpfc_issue_init_vfi(phba->pport);3053 goto out;3054 }3055 3056 /* Upload new FCF record to the failover FCF record */3057 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,3058 "2834 Update current FCF (x%x) with new FCF (x%x)\n",3059 phba->fcf.failover_rec.fcf_indx, fcf_index);3060 spin_lock_irq(&phba->hbalock);3061 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,3062 new_fcf_record, addr_mode, vlan_id,3063 (boot_flag ? BOOT_ENABLE : 0));3064 spin_unlock_irq(&phba->hbalock);3065 3066 current_fcf_index = phba->fcf.current_rec.fcf_indx;3067 3068 /* Unregister the current in-use FCF record */3069 lpfc_unregister_fcf(phba);3070 3071 /* Replace in-use record with the new record */3072 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,3073 sizeof(struct lpfc_fcf_rec));3074 3075 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,3076 "2783 Perform FLOGI roundrobin FCF failover: FCF "3077 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);3078 3079error_out:3080 lpfc_register_fcf(phba);3081out:3082 lpfc_sli4_mbox_cmd_free(phba, mboxq);3083}3084 3085/**3086 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.3087 * @phba: pointer to lpfc hba data structure.3088 * @mboxq: pointer to mailbox object.3089 *3090 * This is the callback function of read FCF record mailbox command for3091 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF3092 * failover when a new FCF event happened. If the FCF read back is3093 * valid/available and it passes the connection list check, it updates3094 * the bmask for the eligible FCF record for roundrobin failover.3095 */3096void3097lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)3098{3099 struct fcf_record *new_fcf_record;3100 uint32_t boot_flag, addr_mode;3101 uint16_t fcf_index, next_fcf_index;3102 uint16_t vlan_id = LPFC_FCOE_NULL_VID;3103 int rc;3104 3105 /* If link state is not up, no need to proceed */3106 if (phba->link_state < LPFC_LINK_UP)3107 goto out;3108 3109 /* If FCF discovery period is over, no need to proceed */3110 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))3111 goto out;3112 3113 /* Parse the FCF record from the non-embedded mailbox command */3114 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,3115 &next_fcf_index);3116 if (!new_fcf_record) {3117 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,3118 "2767 Mailbox command READ_FCF_RECORD "3119 "failed to retrieve a FCF record.\n");3120 goto out;3121 }3122 3123 /* Check the connection list for eligibility */3124 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,3125 &addr_mode, &vlan_id);3126 3127 /* Log the FCF record information if turned on */3128 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,3129 next_fcf_index);3130 3131 if (!rc)3132 goto out;3133 3134 /* Update the eligible FCF record index bmask */3135 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);3136 3137 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);3138 3139out:3140 lpfc_sli4_mbox_cmd_free(phba, mboxq);3141}3142 3143/**3144 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.3145 * @phba: pointer to lpfc hba data structure.3146 * @mboxq: pointer to mailbox data structure.3147 *3148 * This function handles completion of init vfi mailbox command.3149 */3150static void3151lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)3152{3153 struct lpfc_vport *vport = mboxq->vport;3154 3155 /*3156 * VFI not supported on interface type 0, just do the flogi3157 * Also continue if the VFI is in use - just use the same one.3158 */3159 if (mboxq->u.mb.mbxStatus &&3160 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=3161 LPFC_SLI_INTF_IF_TYPE_0) &&3162 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {3163 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3164 "2891 Init VFI mailbox failed 0x%x\n",3165 mboxq->u.mb.mbxStatus);3166 mempool_free(mboxq, phba->mbox_mem_pool);3167 lpfc_vport_set_state(vport, FC_VPORT_FAILED);3168 return;3169 }3170 3171 lpfc_initial_flogi(vport);3172 mempool_free(mboxq, phba->mbox_mem_pool);3173 return;3174}3175 3176/**3177 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.3178 * @vport: pointer to lpfc_vport data structure.3179 *3180 * This function issue a init_vfi mailbox command to initialize the VFI and3181 * VPI for the physical port.3182 */3183void3184lpfc_issue_init_vfi(struct lpfc_vport *vport)3185{3186 LPFC_MBOXQ_t *mboxq;3187 int rc;3188 struct lpfc_hba *phba = vport->phba;3189 3190 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);3191 if (!mboxq) {3192 lpfc_printf_vlog(vport, KERN_ERR,3193 LOG_TRACE_EVENT, "2892 Failed to allocate "3194 "init_vfi mailbox\n");3195 return;3196 }3197 lpfc_init_vfi(mboxq, vport);3198 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;3199 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);3200 if (rc == MBX_NOT_FINISHED) {3201 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3202 "2893 Failed to issue init_vfi mailbox\n");3203 mempool_free(mboxq, vport->phba->mbox_mem_pool);3204 }3205}3206 3207/**3208 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.3209 * @phba: pointer to lpfc hba data structure.3210 * @mboxq: pointer to mailbox data structure.3211 *3212 * This function handles completion of init vpi mailbox command.3213 */3214void3215lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)3216{3217 struct lpfc_vport *vport = mboxq->vport;3218 struct lpfc_nodelist *ndlp;3219 3220 if (mboxq->u.mb.mbxStatus) {3221 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3222 "2609 Init VPI mailbox failed 0x%x\n",3223 mboxq->u.mb.mbxStatus);3224 mempool_free(mboxq, phba->mbox_mem_pool);3225 lpfc_vport_set_state(vport, FC_VPORT_FAILED);3226 return;3227 }3228 clear_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag);3229 3230 /* If this port is physical port or FDISC is done, do reg_vpi */3231 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {3232 ndlp = lpfc_findnode_did(vport, Fabric_DID);3233 if (!ndlp)3234 lpfc_printf_vlog(vport, KERN_ERR,3235 LOG_TRACE_EVENT,3236 "2731 Cannot find fabric "3237 "controller node\n");3238 else3239 lpfc_register_new_vport(phba, vport, ndlp);3240 mempool_free(mboxq, phba->mbox_mem_pool);3241 return;3242 }3243 3244 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)3245 lpfc_initial_fdisc(vport);3246 else {3247 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);3248 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3249 "2606 No NPIV Fabric support\n");3250 }3251 mempool_free(mboxq, phba->mbox_mem_pool);3252 return;3253}3254 3255/**3256 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.3257 * @vport: pointer to lpfc_vport data structure.3258 *3259 * This function issue a init_vpi mailbox command to initialize3260 * VPI for the vport.3261 */3262void3263lpfc_issue_init_vpi(struct lpfc_vport *vport)3264{3265 LPFC_MBOXQ_t *mboxq;3266 int rc, vpi;3267 3268 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {3269 vpi = lpfc_alloc_vpi(vport->phba);3270 if (!vpi) {3271 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3272 "3303 Failed to obtain vport vpi\n");3273 lpfc_vport_set_state(vport, FC_VPORT_FAILED);3274 return;3275 }3276 vport->vpi = vpi;3277 }3278 3279 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);3280 if (!mboxq) {3281 lpfc_printf_vlog(vport, KERN_ERR,3282 LOG_TRACE_EVENT, "2607 Failed to allocate "3283 "init_vpi mailbox\n");3284 return;3285 }3286 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);3287 mboxq->vport = vport;3288 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;3289 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);3290 if (rc == MBX_NOT_FINISHED) {3291 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3292 "2608 Failed to issue init_vpi mailbox\n");3293 mempool_free(mboxq, vport->phba->mbox_mem_pool);3294 }3295}3296 3297/**3298 * lpfc_start_fdiscs - send fdiscs for each vports on this port.3299 * @phba: pointer to lpfc hba data structure.3300 *3301 * This function loops through the list of vports on the @phba and issues an3302 * FDISC if possible.3303 */3304void3305lpfc_start_fdiscs(struct lpfc_hba *phba)3306{3307 struct lpfc_vport **vports;3308 int i;3309 3310 vports = lpfc_create_vport_work_array(phba);3311 if (vports != NULL) {3312 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {3313 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)3314 continue;3315 /* There are no vpi for this vport */3316 if (vports[i]->vpi > phba->max_vpi) {3317 lpfc_vport_set_state(vports[i],3318 FC_VPORT_FAILED);3319 continue;3320 }3321 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {3322 lpfc_vport_set_state(vports[i],3323 FC_VPORT_LINKDOWN);3324 continue;3325 }3326 if (test_bit(FC_VPORT_NEEDS_INIT_VPI,3327 &vports[i]->fc_flag)) {3328 lpfc_issue_init_vpi(vports[i]);3329 continue;3330 }3331 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)3332 lpfc_initial_fdisc(vports[i]);3333 else {3334 lpfc_vport_set_state(vports[i],3335 FC_VPORT_NO_FABRIC_SUPP);3336 lpfc_printf_vlog(vports[i], KERN_ERR,3337 LOG_TRACE_EVENT,3338 "0259 No NPIV "3339 "Fabric support\n");3340 }3341 }3342 }3343 lpfc_destroy_vport_work_array(phba, vports);3344}3345 3346void3347lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)3348{3349 struct lpfc_vport *vport = mboxq->vport;3350 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);3351 3352 /*3353 * VFI not supported for interface type 0, so ignore any mailbox3354 * error (except VFI in use) and continue with the discovery.3355 */3356 if (mboxq->u.mb.mbxStatus &&3357 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=3358 LPFC_SLI_INTF_IF_TYPE_0) &&3359 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {3360 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3361 "2018 REG_VFI mbxStatus error x%x "3362 "HBA state x%x\n",3363 mboxq->u.mb.mbxStatus, vport->port_state);3364 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {3365 /* FLOGI failed, use loop map to make discovery list */3366 lpfc_disc_list_loopmap(vport);3367 /* Start discovery */3368 lpfc_disc_start(vport);3369 goto out_free_mem;3370 }3371 lpfc_vport_set_state(vport, FC_VPORT_FAILED);3372 goto out_free_mem;3373 }3374 3375 /* If the VFI is already registered, there is nothing else to do3376 * Unless this was a VFI update and we are in PT2PT mode, then3377 * we should drop through to set the port state to ready.3378 */3379 if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag))3380 if (!(phba->sli_rev == LPFC_SLI_REV4 &&3381 test_bit(FC_PT2PT, &vport->fc_flag)))3382 goto out_free_mem;3383 3384 /* The VPI is implicitly registered when the VFI is registered */3385 set_bit(FC_VFI_REGISTERED, &vport->fc_flag);3386 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag);3387 clear_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag);3388 spin_lock_irq(shost->host_lock);3389 vport->vpi_state |= LPFC_VPI_REGISTERED;3390 spin_unlock_irq(shost->host_lock);3391 3392 /* In case SLI4 FC loopback test, we are ready */3393 if ((phba->sli_rev == LPFC_SLI_REV4) &&3394 (phba->link_flag & LS_LOOPBACK_MODE)) {3395 phba->link_state = LPFC_HBA_READY;3396 goto out_free_mem;3397 }3398 3399 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,3400 "3313 cmpl reg vfi port_state:%x fc_flag:%lx "3401 "myDid:%x alpacnt:%d LinkState:%x topology:%x\n",3402 vport->port_state, vport->fc_flag, vport->fc_myDID,3403 vport->phba->alpa_map[0],3404 phba->link_state, phba->fc_topology);3405 3406 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {3407 /*3408 * For private loop or for NPort pt2pt,3409 * just start discovery and we are done.3410 */3411 if (test_bit(FC_PT2PT, &vport->fc_flag) ||3412 (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&3413 !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))) {3414 3415 /* Use loop map to make discovery list */3416 lpfc_disc_list_loopmap(vport);3417 /* Start discovery */3418 if (test_bit(FC_PT2PT, &vport->fc_flag))3419 vport->port_state = LPFC_VPORT_READY;3420 else3421 lpfc_disc_start(vport);3422 } else {3423 lpfc_start_fdiscs(phba);3424 lpfc_do_scr_ns_plogi(phba, vport);3425 }3426 }3427 3428out_free_mem:3429 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);3430}3431 3432static void3433lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)3434{3435 MAILBOX_t *mb = &pmb->u.mb;3436 struct lpfc_dmabuf *mp = pmb->ctx_buf;3437 struct lpfc_vport *vport = pmb->vport;3438 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);3439 struct serv_parm *sp = &vport->fc_sparam;3440 uint32_t ed_tov;3441 3442 /* Check for error */3443 if (mb->mbxStatus) {3444 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */3445 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3446 "0319 READ_SPARAM mbxStatus error x%x "3447 "hba state x%x>\n",3448 mb->mbxStatus, vport->port_state);3449 lpfc_linkdown(phba);3450 goto out;3451 }3452 3453 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,3454 sizeof (struct serv_parm));3455 3456 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);3457 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */3458 ed_tov = (ed_tov + 999999) / 1000000;3459 3460 phba->fc_edtov = ed_tov;3461 phba->fc_ratov = (2 * ed_tov) / 1000;3462 if (phba->fc_ratov < FF_DEF_RATOV) {3463 /* RA_TOV should be atleast 10sec for initial flogi */3464 phba->fc_ratov = FF_DEF_RATOV;3465 }3466 3467 lpfc_update_vport_wwn(vport);3468 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);3469 if (vport->port_type == LPFC_PHYSICAL_PORT) {3470 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));3471 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));3472 }3473 3474 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);3475 3476 /* Check if sending the FLOGI is being deferred to after we get3477 * up to date CSPs from MBX_READ_SPARAM.3478 */3479 if (test_bit(HBA_DEFER_FLOGI, &phba->hba_flag)) {3480 lpfc_initial_flogi(vport);3481 clear_bit(HBA_DEFER_FLOGI, &phba->hba_flag);3482 }3483 return;3484 3485out:3486 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);3487 lpfc_issue_clear_la(phba, vport);3488}3489 3490static void3491lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)3492{3493 struct lpfc_vport *vport = phba->pport;3494 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;3495 int i;3496 int rc;3497 struct fcf_record *fcf_record;3498 unsigned long iflags;3499 3500 spin_lock_irqsave(&phba->hbalock, iflags);3501 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);3502 3503 if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) {3504 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {3505 case LPFC_LINK_SPEED_1GHZ:3506 case LPFC_LINK_SPEED_2GHZ:3507 case LPFC_LINK_SPEED_4GHZ:3508 case LPFC_LINK_SPEED_8GHZ:3509 case LPFC_LINK_SPEED_10GHZ:3510 case LPFC_LINK_SPEED_16GHZ:3511 case LPFC_LINK_SPEED_32GHZ:3512 case LPFC_LINK_SPEED_64GHZ:3513 case LPFC_LINK_SPEED_128GHZ:3514 case LPFC_LINK_SPEED_256GHZ:3515 break;3516 default:3517 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;3518 break;3519 }3520 }3521 3522 if (phba->fc_topology &&3523 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {3524 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,3525 "3314 Toplogy changed was 0x%x is 0x%x\n",3526 phba->fc_topology,3527 bf_get(lpfc_mbx_read_top_topology, la));3528 phba->fc_topology_changed = 1;3529 }3530 3531 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);3532 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA);3533 3534 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {3535 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;3536 3537 /* if npiv is enabled and this adapter supports npiv log3538 * a message that npiv is not supported in this topology3539 */3540 if (phba->cfg_enable_npiv && phba->max_vpi)3541 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,3542 "1309 Link Up Event npiv not supported in loop "3543 "topology\n");3544 /* Get Loop Map information */3545 if (bf_get(lpfc_mbx_read_top_il, la))3546 set_bit(FC_LBIT, &vport->fc_flag);3547 3548 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);3549 i = la->lilpBde64.tus.f.bdeSize;3550 3551 if (i == 0) {3552 phba->alpa_map[0] = 0;3553 } else {3554 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {3555 int numalpa, j, k;3556 union {3557 uint8_t pamap[16];3558 struct {3559 uint32_t wd1;3560 uint32_t wd2;3561 uint32_t wd3;3562 uint32_t wd4;3563 } pa;3564 } un;3565 numalpa = phba->alpa_map[0];3566 j = 0;3567 while (j < numalpa) {3568 memset(un.pamap, 0, 16);3569 for (k = 1; j < numalpa; k++) {3570 un.pamap[k - 1] =3571 phba->alpa_map[j + 1];3572 j++;3573 if (k == 16)3574 break;3575 }3576 /* Link Up Event ALPA map */3577 lpfc_printf_log(phba,3578 KERN_WARNING,3579 LOG_LINK_EVENT,3580 "1304 Link Up Event "3581 "ALPA map Data: x%x "3582 "x%x x%x x%x\n",3583 un.pa.wd1, un.pa.wd2,3584 un.pa.wd3, un.pa.wd4);3585 }3586 }3587 }3588 } else {3589 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {3590 if (phba->max_vpi && phba->cfg_enable_npiv &&3591 (phba->sli_rev >= LPFC_SLI_REV3))3592 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;3593 }3594 vport->fc_myDID = phba->fc_pref_DID;3595 set_bit(FC_LBIT, &vport->fc_flag);3596 }3597 spin_unlock_irqrestore(&phba->hbalock, iflags);3598 3599 lpfc_linkup(phba);3600 sparam_mbox = NULL;3601 3602 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);3603 if (!sparam_mbox)3604 goto out;3605 3606 rc = lpfc_read_sparam(phba, sparam_mbox, 0);3607 if (rc) {3608 mempool_free(sparam_mbox, phba->mbox_mem_pool);3609 goto out;3610 }3611 sparam_mbox->vport = vport;3612 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;3613 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);3614 if (rc == MBX_NOT_FINISHED) {3615 lpfc_mbox_rsrc_cleanup(phba, sparam_mbox, MBOX_THD_UNLOCKED);3616 goto out;3617 }3618 3619 if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) {3620 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);3621 if (!cfglink_mbox)3622 goto out;3623 vport->port_state = LPFC_LOCAL_CFG_LINK;3624 lpfc_config_link(phba, cfglink_mbox);3625 cfglink_mbox->vport = vport;3626 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;3627 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);3628 if (rc == MBX_NOT_FINISHED) {3629 mempool_free(cfglink_mbox, phba->mbox_mem_pool);3630 goto out;3631 }3632 } else {3633 vport->port_state = LPFC_VPORT_UNKNOWN;3634 /*3635 * Add the driver's default FCF record at FCF index 0 now. This3636 * is phase 1 implementation that support FCF index 0 and driver3637 * defaults.3638 */3639 if (!test_bit(HBA_FIP_SUPPORT, &phba->hba_flag)) {3640 fcf_record = kzalloc(sizeof(struct fcf_record),3641 GFP_KERNEL);3642 if (unlikely(!fcf_record)) {3643 lpfc_printf_log(phba, KERN_ERR,3644 LOG_TRACE_EVENT,3645 "2554 Could not allocate memory for "3646 "fcf record\n");3647 rc = -ENODEV;3648 goto out;3649 }3650 3651 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,3652 LPFC_FCOE_FCF_DEF_INDEX);3653 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);3654 if (unlikely(rc)) {3655 lpfc_printf_log(phba, KERN_ERR,3656 LOG_TRACE_EVENT,3657 "2013 Could not manually add FCF "3658 "record 0, status %d\n", rc);3659 rc = -ENODEV;3660 kfree(fcf_record);3661 goto out;3662 }3663 kfree(fcf_record);3664 }3665 /*3666 * The driver is expected to do FIP/FCF. Call the port3667 * and get the FCF Table.3668 */3669 if (test_bit(FCF_TS_INPROG, &phba->hba_flag))3670 return;3671 /* This is the initial FCF discovery scan */3672 spin_lock_irqsave(&phba->hbalock, iflags);3673 phba->fcf.fcf_flag |= FCF_INIT_DISC;3674 spin_unlock_irqrestore(&phba->hbalock, iflags);3675 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,3676 "2778 Start FCF table scan at linkup\n");3677 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,3678 LPFC_FCOE_FCF_GET_FIRST);3679 if (rc) {3680 spin_lock_irqsave(&phba->hbalock, iflags);3681 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;3682 spin_unlock_irqrestore(&phba->hbalock, iflags);3683 goto out;3684 }3685 /* Reset FCF roundrobin bmask for new discovery */3686 lpfc_sli4_clear_fcf_rr_bmask(phba);3687 }3688 3689 /* Prepare for LINK up registrations */3690 memset(phba->os_host_name, 0, sizeof(phba->os_host_name));3691 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",3692 init_utsname()->nodename);3693 return;3694out:3695 lpfc_vport_set_state(vport, FC_VPORT_FAILED);3696 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3697 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n",3698 vport->port_state, sparam_mbox, cfglink_mbox);3699 lpfc_issue_clear_la(phba, vport);3700 return;3701}3702 3703static void3704lpfc_enable_la(struct lpfc_hba *phba)3705{3706 uint32_t control;3707 struct lpfc_sli *psli = &phba->sli;3708 spin_lock_irq(&phba->hbalock);3709 psli->sli_flag |= LPFC_PROCESS_LA;3710 if (phba->sli_rev <= LPFC_SLI_REV3) {3711 control = readl(phba->HCregaddr);3712 control |= HC_LAINT_ENA;3713 writel(control, phba->HCregaddr);3714 readl(phba->HCregaddr); /* flush */3715 }3716 spin_unlock_irq(&phba->hbalock);3717}3718 3719static void3720lpfc_mbx_issue_link_down(struct lpfc_hba *phba)3721{3722 lpfc_linkdown(phba);3723 lpfc_enable_la(phba);3724 lpfc_unregister_unused_fcf(phba);3725 /* turn on Link Attention interrupts - no CLEAR_LA needed */3726}3727 3728 3729/*3730 * This routine handles processing a READ_TOPOLOGY mailbox3731 * command upon completion. It is setup in the LPFC_MBOXQ3732 * as the completion routine when the command is3733 * handed off to the SLI layer. SLI4 only.3734 */3735void3736lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)3737{3738 struct lpfc_vport *vport = pmb->vport;3739 struct lpfc_mbx_read_top *la;3740 struct lpfc_sli_ring *pring;3741 MAILBOX_t *mb = &pmb->u.mb;3742 struct lpfc_dmabuf *mp = pmb->ctx_buf;3743 uint8_t attn_type;3744 3745 /* Unblock ELS traffic */3746 pring = lpfc_phba_elsring(phba);3747 if (pring)3748 pring->flag &= ~LPFC_STOP_IOCB_EVENT;3749 3750 /* Check for error */3751 if (mb->mbxStatus) {3752 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,3753 "1307 READ_LA mbox error x%x state x%x\n",3754 mb->mbxStatus, vport->port_state);3755 lpfc_mbx_issue_link_down(phba);3756 phba->link_state = LPFC_HBA_ERROR;3757 goto lpfc_mbx_cmpl_read_topology_free_mbuf;3758 }3759 3760 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;3761 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);3762 3763 memcpy(&phba->alpa_map[0], mp->virt, 128);3764 3765 if (bf_get(lpfc_mbx_read_top_pb, la))3766 set_bit(FC_BYPASSED_MODE, &vport->fc_flag);3767 else3768 clear_bit(FC_BYPASSED_MODE, &vport->fc_flag);3769 3770 if (phba->fc_eventTag <= la->eventTag) {3771 phba->fc_stat.LinkMultiEvent++;3772 if (attn_type == LPFC_ATT_LINK_UP)3773 if (phba->fc_eventTag != 0)3774 lpfc_linkdown(phba);3775 }3776 3777 phba->fc_eventTag = la->eventTag;3778 phba->link_events++;3779 if (attn_type == LPFC_ATT_LINK_UP) {3780 phba->fc_stat.LinkUp++;3781 if (phba->link_flag & LS_LOOPBACK_MODE) {3782 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,3783 "1306 Link Up Event in loop back mode "3784 "x%x received Data: x%x x%x x%x x%x\n",3785 la->eventTag, phba->fc_eventTag,3786 bf_get(lpfc_mbx_read_top_alpa_granted,3787 la),3788 bf_get(lpfc_mbx_read_top_link_spd, la),3789 phba->alpa_map[0]);3790 } else {3791 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,3792 "1303 Link Up Event x%x received "3793 "Data: x%x x%x x%x x%x x%x\n",3794 la->eventTag, phba->fc_eventTag,3795 bf_get(lpfc_mbx_read_top_alpa_granted,3796 la),3797 bf_get(lpfc_mbx_read_top_link_spd, la),3798 phba->alpa_map[0],3799 bf_get(lpfc_mbx_read_top_fa, la));3800 }3801 lpfc_mbx_process_link_up(phba, la);3802 3803 if (phba->cmf_active_mode != LPFC_CFG_OFF)3804 lpfc_cmf_signal_init(phba);3805 3806 if (phba->lmt & LMT_64Gb)3807 lpfc_read_lds_params(phba);3808 3809 } else if (attn_type == LPFC_ATT_LINK_DOWN ||3810 attn_type == LPFC_ATT_UNEXP_WWPN) {3811 phba->fc_stat.LinkDown++;3812 if (phba->link_flag & LS_LOOPBACK_MODE)3813 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,3814 "1308 Link Down Event in loop back mode "3815 "x%x received "3816 "Data: x%x x%x x%lx\n",3817 la->eventTag, phba->fc_eventTag,3818 phba->pport->port_state, vport->fc_flag);3819 else if (attn_type == LPFC_ATT_UNEXP_WWPN)3820 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,3821 "1313 Link Down Unexpected FA WWPN Event x%x "3822 "received Data: x%x x%x x%lx x%x\n",3823 la->eventTag, phba->fc_eventTag,3824 phba->pport->port_state, vport->fc_flag,3825 bf_get(lpfc_mbx_read_top_fa, la));3826 else3827 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,3828 "1305 Link Down Event x%x received "3829 "Data: x%x x%x x%lx x%x\n",3830 la->eventTag, phba->fc_eventTag,3831 phba->pport->port_state, vport->fc_flag,3832 bf_get(lpfc_mbx_read_top_fa, la));3833 lpfc_mbx_issue_link_down(phba);3834 }3835 3836 if ((phba->sli_rev < LPFC_SLI_REV4) &&3837 bf_get(lpfc_mbx_read_top_fa, la))3838 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,3839 "1311 fa %d\n",3840 bf_get(lpfc_mbx_read_top_fa, la));3841 3842lpfc_mbx_cmpl_read_topology_free_mbuf:3843 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);3844}3845 3846/*3847 * This routine handles processing a REG_LOGIN mailbox3848 * command upon completion. It is setup in the LPFC_MBOXQ3849 * as the completion routine when the command is3850 * handed off to the SLI layer.3851 */3852void3853lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)3854{3855 struct lpfc_vport *vport = pmb->vport;3856 struct lpfc_dmabuf *mp = pmb->ctx_buf;3857 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;3858 3859 /* The driver calls the state machine with the pmb pointer3860 * but wants to make sure a stale ctx_buf isn't acted on.3861 * The ctx_buf is restored later and cleaned up.3862 */3863 pmb->ctx_buf = NULL;3864 pmb->ctx_ndlp = NULL;3865 3866 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY,3867 "0002 rpi:%x DID:%x flg:%x %d x%px\n",3868 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,3869 kref_read(&ndlp->kref),3870 ndlp);3871 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)3872 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;3873 3874 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||3875 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {3876 /* We rcvd a rscn after issuing this3877 * mbox reg login, we may have cycled3878 * back through the state and be3879 * back at reg login state so this3880 * mbox needs to be ignored becase3881 * there is another reg login in3882 * process.3883 */3884 spin_lock_irq(&ndlp->lock);3885 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;3886 spin_unlock_irq(&ndlp->lock);3887 3888 /*3889 * We cannot leave the RPI registered because3890 * if we go thru discovery again for this ndlp3891 * a subsequent REG_RPI will fail.3892 */3893 ndlp->nlp_flag |= NLP_RPI_REGISTERED;3894 lpfc_unreg_rpi(vport, ndlp);3895 }3896 3897 /* Call state machine */3898 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);3899 pmb->ctx_buf = mp;3900 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);3901 3902 /* decrement the node reference count held for this callback3903 * function.3904 */3905 lpfc_nlp_put(ndlp);3906 3907 return;3908}3909 3910static void3911lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)3912{3913 MAILBOX_t *mb = &pmb->u.mb;3914 struct lpfc_vport *vport = pmb->vport;3915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);3916 3917 switch (mb->mbxStatus) {3918 case 0x0011:3919 case 0x0020:3920 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,3921 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",3922 mb->mbxStatus);3923 break;3924 /* If VPI is busy, reset the HBA */3925 case 0x9700:3926 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3927 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",3928 vport->vpi, mb->mbxStatus);3929 if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))3930 lpfc_workq_post_event(phba, NULL, NULL,3931 LPFC_EVT_RESET_HBA);3932 }3933 3934 set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag);3935 spin_lock_irq(shost->host_lock);3936 vport->vpi_state &= ~LPFC_VPI_REGISTERED;3937 spin_unlock_irq(shost->host_lock);3938 mempool_free(pmb, phba->mbox_mem_pool);3939 lpfc_cleanup_vports_rrqs(vport, NULL);3940 /*3941 * This shost reference might have been taken at the beginning of3942 * lpfc_vport_delete()3943 */3944 if (test_bit(FC_UNLOADING, &vport->load_flag) && vport != phba->pport)3945 scsi_host_put(shost);3946}3947 3948int3949lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)3950{3951 struct lpfc_hba *phba = vport->phba;3952 LPFC_MBOXQ_t *mbox;3953 int rc;3954 3955 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);3956 if (!mbox)3957 return 1;3958 3959 lpfc_unreg_vpi(phba, vport->vpi, mbox);3960 mbox->vport = vport;3961 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;3962 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);3963 if (rc == MBX_NOT_FINISHED) {3964 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,3965 "1800 Could not issue unreg_vpi\n");3966 mempool_free(mbox, phba->mbox_mem_pool);3967 return rc;3968 }3969 return 0;3970}3971 3972static void3973lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)3974{3975 struct lpfc_vport *vport = pmb->vport;3976 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);3977 MAILBOX_t *mb = &pmb->u.mb;3978 3979 switch (mb->mbxStatus) {3980 case 0x0011:3981 case 0x9601:3982 case 0x9602:3983 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,3984 "0912 cmpl_reg_vpi, mb status = 0x%x\n",3985 mb->mbxStatus);3986 lpfc_vport_set_state(vport, FC_VPORT_FAILED);3987 clear_bit(FC_FABRIC, &vport->fc_flag);3988 clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag);3989 vport->fc_myDID = 0;3990 3991 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||3992 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {3993 if (phba->nvmet_support)3994 lpfc_nvmet_update_targetport(phba);3995 else3996 lpfc_nvme_update_localport(vport);3997 }3998 goto out;3999 }4000 4001 clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag);4002 spin_lock_irq(shost->host_lock);4003 vport->vpi_state |= LPFC_VPI_REGISTERED;4004 spin_unlock_irq(shost->host_lock);4005 vport->num_disc_nodes = 0;4006 /* go thru NPR list and issue ELS PLOGIs */4007 if (atomic_read(&vport->fc_npr_cnt))4008 lpfc_els_disc_plogi(vport);4009 4010 if (!vport->num_disc_nodes) {4011 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag);4012 lpfc_can_disctmo(vport);4013 }4014 vport->port_state = LPFC_VPORT_READY;4015 4016out:4017 mempool_free(pmb, phba->mbox_mem_pool);4018 return;4019}4020 4021/**4022 * lpfc_create_static_vport - Read HBA config region to create static vports.4023 * @phba: pointer to lpfc hba data structure.4024 *4025 * This routine issue a DUMP mailbox command for config region 22 to get4026 * the list of static vports to be created. The function create vports4027 * based on the information returned from the HBA.4028 **/4029void4030lpfc_create_static_vport(struct lpfc_hba *phba)4031{4032 LPFC_MBOXQ_t *pmb = NULL;4033 MAILBOX_t *mb;4034 struct static_vport_info *vport_info;4035 int mbx_wait_rc = 0, i;4036 struct fc_vport_identifiers vport_id;4037 struct fc_vport *new_fc_vport;4038 struct Scsi_Host *shost;4039 struct lpfc_vport *vport;4040 uint16_t offset = 0;4041 uint8_t *vport_buff;4042 struct lpfc_dmabuf *mp;4043 uint32_t byte_count = 0;4044 4045 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);4046 if (!pmb) {4047 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,4048 "0542 lpfc_create_static_vport failed to"4049 " allocate mailbox memory\n");4050 return;4051 }4052 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));4053 mb = &pmb->u.mb;4054 4055 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);4056 if (!vport_info) {4057 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,4058 "0543 lpfc_create_static_vport failed to"4059 " allocate vport_info\n");4060 mempool_free(pmb, phba->mbox_mem_pool);4061 return;4062 }4063 4064 vport_buff = (uint8_t *) vport_info;4065 do {4066 /* While loop iteration forces a free dma buffer from4067 * the previous loop because the mbox is reused and4068 * the dump routine is a single-use construct.4069 */4070 if (pmb->ctx_buf) {4071 mp = pmb->ctx_buf;4072 lpfc_mbuf_free(phba, mp->virt, mp->phys);4073 kfree(mp);4074 pmb->ctx_buf = NULL;4075 }4076 if (lpfc_dump_static_vport(phba, pmb, offset))4077 goto out;4078 4079 pmb->vport = phba->pport;4080 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,4081 LPFC_MBOX_TMO);4082 4083 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {4084 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,4085 "0544 lpfc_create_static_vport failed to"4086 " issue dump mailbox command ret 0x%x "4087 "status 0x%x\n",4088 mbx_wait_rc, mb->mbxStatus);4089 goto out;4090 }4091 4092 if (phba->sli_rev == LPFC_SLI_REV4) {4093 byte_count = pmb->u.mqe.un.mb_words[5];4094 mp = pmb->ctx_buf;4095 if (byte_count > sizeof(struct static_vport_info) -4096 offset)4097 byte_count = sizeof(struct static_vport_info)4098 - offset;4099 memcpy(vport_buff + offset, mp->virt, byte_count);4100 offset += byte_count;4101 } else {4102 if (mb->un.varDmp.word_cnt >4103 sizeof(struct static_vport_info) - offset)4104 mb->un.varDmp.word_cnt =4105 sizeof(struct static_vport_info)4106 - offset;4107 byte_count = mb->un.varDmp.word_cnt;4108 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,4109 vport_buff + offset,4110 byte_count);4111 4112 offset += byte_count;4113 }4114 4115 } while (byte_count &&4116 offset < sizeof(struct static_vport_info));4117 4118 4119 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||4120 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)4121 != VPORT_INFO_REV)) {4122 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,4123 "0545 lpfc_create_static_vport bad"4124 " information header 0x%x 0x%x\n",4125 le32_to_cpu(vport_info->signature),4126 le32_to_cpu(vport_info->rev) &4127 VPORT_INFO_REV_MASK);4128 4129 goto out;4130 }4131 4132 shost = lpfc_shost_from_vport(phba->pport);4133 4134 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {4135 memset(&vport_id, 0, sizeof(vport_id));4136 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);4137 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);4138 if (!vport_id.port_name || !vport_id.node_name)4139 continue;4140 4141 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;4142 vport_id.vport_type = FC_PORTTYPE_NPIV;4143 vport_id.disable = false;4144 new_fc_vport = fc_vport_create(shost, 0, &vport_id);4145 4146 if (!new_fc_vport) {4147 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,4148 "0546 lpfc_create_static_vport failed to"4149 " create vport\n");4150 continue;4151 }4152 4153 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;4154 vport->vport_flag |= STATIC_VPORT;4155 }4156 4157out:4158 kfree(vport_info);4159 if (mbx_wait_rc != MBX_TIMEOUT)4160 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);4161}4162 4163/*4164 * This routine handles processing a Fabric REG_LOGIN mailbox4165 * command upon completion. It is setup in the LPFC_MBOXQ4166 * as the completion routine when the command is4167 * handed off to the SLI layer.4168 */4169void4170lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)4171{4172 struct lpfc_vport *vport = pmb->vport;4173 MAILBOX_t *mb = &pmb->u.mb;4174 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;4175 4176 pmb->ctx_ndlp = NULL;4177 4178 if (mb->mbxStatus) {4179 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,4180 "0258 Register Fabric login error: 0x%x\n",4181 mb->mbxStatus);4182 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);4183 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {4184 /* FLOGI failed, use loop map to make discovery list */4185 lpfc_disc_list_loopmap(vport);4186 4187 /* Start discovery */4188 lpfc_disc_start(vport);4189 /* Decrement the reference count to ndlp after the4190 * reference to the ndlp are done.4191 */4192 lpfc_nlp_put(ndlp);4193 return;4194 }4195 4196 lpfc_vport_set_state(vport, FC_VPORT_FAILED);4197 /* Decrement the reference count to ndlp after the reference4198 * to the ndlp are done.4199 */4200 lpfc_nlp_put(ndlp);4201 return;4202 }4203 4204 if (phba->sli_rev < LPFC_SLI_REV4)4205 ndlp->nlp_rpi = mb->un.varWords[0];4206 ndlp->nlp_flag |= NLP_RPI_REGISTERED;4207 ndlp->nlp_type |= NLP_FABRIC;4208 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);4209 4210 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {4211 /* when physical port receive logo donot start4212 * vport discovery */4213 if (!test_and_clear_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag))4214 lpfc_start_fdiscs(phba);4215 lpfc_do_scr_ns_plogi(phba, vport);4216 }4217 4218 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);4219 4220 /* Drop the reference count from the mbox at the end after4221 * all the current reference to the ndlp have been done.4222 */4223 lpfc_nlp_put(ndlp);4224 return;4225}4226 4227 /*4228 * This routine will issue a GID_FT for each FC4 Type supported4229 * by the driver. ALL GID_FTs must complete before discovery is started.4230 */4231int4232lpfc_issue_gidft(struct lpfc_vport *vport)4233{4234 /* Good status, issue CT Request to NameServer */4235 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||4236 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {4237 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {4238 /* Cannot issue NameServer FCP Query, so finish up4239 * discovery4240 */4241 lpfc_printf_vlog(vport, KERN_ERR,4242 LOG_TRACE_EVENT,4243 "0604 %s FC TYPE %x %s\n",4244 "Failed to issue GID_FT to ",4245 FC_TYPE_FCP,4246 "Finishing discovery.");4247 return 0;4248 }4249 vport->gidft_inp++;4250 }4251 4252 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||4253 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {4254 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {4255 /* Cannot issue NameServer NVME Query, so finish up4256 * discovery4257 */4258 lpfc_printf_vlog(vport, KERN_ERR,4259 LOG_TRACE_EVENT,4260 "0605 %s FC_TYPE %x %s %d\n",4261 "Failed to issue GID_FT to ",4262 FC_TYPE_NVME,4263 "Finishing discovery: gidftinp ",4264 vport->gidft_inp);4265 if (vport->gidft_inp == 0)4266 return 0;4267 } else4268 vport->gidft_inp++;4269 }4270 return vport->gidft_inp;4271}4272 4273/**4274 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports4275 * @vport: The virtual port for which this call is being executed.4276 *4277 * This routine will issue a GID_PT to get a list of all N_Ports4278 *4279 * Return value :4280 * 0 - Failure to issue a GID_PT4281 * 1 - GID_PT issued4282 **/4283int4284lpfc_issue_gidpt(struct lpfc_vport *vport)4285{4286 /* Good status, issue CT Request to NameServer */4287 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) {4288 /* Cannot issue NameServer FCP Query, so finish up4289 * discovery4290 */4291 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,4292 "0606 %s Port TYPE %x %s\n",4293 "Failed to issue GID_PT to ",4294 GID_PT_N_PORT,4295 "Finishing discovery.");4296 return 0;4297 }4298 vport->gidft_inp++;4299 return 1;4300}4301 4302/*4303 * This routine handles processing a NameServer REG_LOGIN mailbox4304 * command upon completion. It is setup in the LPFC_MBOXQ4305 * as the completion routine when the command is4306 * handed off to the SLI layer.4307 */4308void4309lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)4310{4311 MAILBOX_t *mb = &pmb->u.mb;4312 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;4313 struct lpfc_vport *vport = pmb->vport;4314 int rc;4315 4316 pmb->ctx_ndlp = NULL;4317 vport->gidft_inp = 0;4318 4319 if (mb->mbxStatus) {4320 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,4321 "0260 Register NameServer error: 0x%x\n",4322 mb->mbxStatus);4323 4324out:4325 /* decrement the node reference count held for this4326 * callback function.4327 */4328 lpfc_nlp_put(ndlp);4329 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);4330 4331 /* If the node is not registered with the scsi or nvme4332 * transport, remove the fabric node. The failed reg_login4333 * is terminal and forces the removal of the last node4334 * reference.4335 */4336 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {4337 spin_lock_irq(&ndlp->lock);4338 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;4339 spin_unlock_irq(&ndlp->lock);4340 lpfc_nlp_put(ndlp);4341 }4342 4343 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {4344 /*4345 * RegLogin failed, use loop map to make discovery4346 * list4347 */4348 lpfc_disc_list_loopmap(vport);4349 4350 /* Start discovery */4351 lpfc_disc_start(vport);4352 return;4353 }4354 lpfc_vport_set_state(vport, FC_VPORT_FAILED);4355 return;4356 }4357 4358 if (phba->sli_rev < LPFC_SLI_REV4)4359 ndlp->nlp_rpi = mb->un.varWords[0];4360 ndlp->nlp_flag |= NLP_RPI_REGISTERED;4361 ndlp->nlp_type |= NLP_FABRIC;4362 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);4363 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,4364 "0003 rpi:%x DID:%x flg:%x %d x%px\n",4365 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,4366 kref_read(&ndlp->kref),4367 ndlp);4368 4369 if (vport->port_state < LPFC_VPORT_READY) {4370 /* Link up discovery requires Fabric registration. */4371 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);4372 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);4373 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);4374 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);4375 4376 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||4377 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP))4378 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);4379 4380 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||4381 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME))4382 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,4383 FC_TYPE_NVME);4384 4385 /* Issue SCR just before NameServer GID_FT Query */4386 lpfc_issue_els_scr(vport, 0);4387 4388 /* Link was bounced or a Fabric LOGO occurred. Start EDC4389 * with initial FW values provided the congestion mode is4390 * not off. Note that signals may or may not be supported4391 * by the adapter but FPIN is provided by default for 14392 * or both missing signals support.4393 */4394 if (phba->cmf_active_mode != LPFC_CFG_OFF) {4395 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin;4396 phba->cgn_reg_signal = phba->cgn_init_reg_signal;4397 rc = lpfc_issue_els_edc(vport, 0);4398 lpfc_printf_log(phba, KERN_INFO,4399 LOG_INIT | LOG_ELS | LOG_DISCOVERY,4400 "4220 Issue EDC status x%x Data x%x\n",4401 rc, phba->cgn_init_reg_signal);4402 } else if (phba->lmt & LMT_64Gb) {4403 /* may send link fault capability descriptor */4404 lpfc_issue_els_edc(vport, 0);4405 } else {4406 lpfc_issue_els_rdf(vport, 0);4407 }4408 }4409 4410 vport->fc_ns_retry = 0;4411 if (lpfc_issue_gidft(vport) == 0)4412 goto out;4413 4414 /*4415 * At this point in time we may need to wait for multiple4416 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.4417 *4418 * decrement the node reference count held for this4419 * callback function.4420 */4421 lpfc_nlp_put(ndlp);4422 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);4423 return;4424}4425 4426/*4427 * This routine handles processing a Fabric Controller REG_LOGIN mailbox4428 * command upon completion. It is setup in the LPFC_MBOXQ4429 * as the completion routine when the command is handed off to the SLI layer.4430 */4431void4432lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)4433{4434 struct lpfc_vport *vport = pmb->vport;4435 MAILBOX_t *mb = &pmb->u.mb;4436 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;4437 4438 pmb->ctx_ndlp = NULL;4439 if (mb->mbxStatus) {4440 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,4441 "0933 %s: Register FC login error: 0x%x\n",4442 __func__, mb->mbxStatus);4443 goto out;4444 }4445 4446 lpfc_check_nlp_post_devloss(vport, ndlp);4447 4448 if (phba->sli_rev < LPFC_SLI_REV4)4449 ndlp->nlp_rpi = mb->un.varWords[0];4450 4451 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,4452 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n",4453 __func__, ndlp->nlp_DID, ndlp->nlp_rpi,4454 ndlp->nlp_state);4455 4456 ndlp->nlp_flag |= NLP_RPI_REGISTERED;4457 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;4458 ndlp->nlp_type |= NLP_FABRIC;4459 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);4460 4461 out:4462 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);4463 4464 /* Drop the reference count from the mbox at the end after4465 * all the current reference to the ndlp have been done.4466 */4467 lpfc_nlp_put(ndlp);4468}4469 4470static void4471lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)4472{4473 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);4474 struct fc_rport *rport;4475 struct lpfc_rport_data *rdata;4476 struct fc_rport_identifiers rport_ids;4477 struct lpfc_hba *phba = vport->phba;4478 unsigned long flags;4479 4480 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)4481 return;4482 4483 /* Remote port has reappeared. Re-register w/ FC transport */4484 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);4485 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);4486 rport_ids.port_id = ndlp->nlp_DID;4487 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;4488 4489 4490 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,4491 "rport add: did:x%x flg:x%x type x%x",4492 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);4493 4494 /* Don't add the remote port if unloading. */4495 if (test_bit(FC_UNLOADING, &vport->load_flag))4496 return;4497 4498 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);4499 if (!rport) {4500 dev_printk(KERN_WARNING, &phba->pcidev->dev,4501 "Warning: fc_remote_port_add failed\n");4502 return;4503 }4504 4505 /* Successful port add. Complete initializing node data */4506 rport->maxframe_size = ndlp->nlp_maxframe;4507 rport->supported_classes = ndlp->nlp_class_sup;4508 rdata = rport->dd_data;4509 rdata->pnode = lpfc_nlp_get(ndlp);4510 if (!rdata->pnode) {4511 dev_warn(&phba->pcidev->dev,4512 "Warning - node ref failed. Unreg rport\n");4513 fc_remote_port_delete(rport);4514 ndlp->rport = NULL;4515 return;4516 }4517 4518 spin_lock_irqsave(&ndlp->lock, flags);4519 ndlp->fc4_xpt_flags |= SCSI_XPT_REGD;4520 spin_unlock_irqrestore(&ndlp->lock, flags);4521 4522 if (ndlp->nlp_type & NLP_FCP_TARGET)4523 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;4524 if (ndlp->nlp_type & NLP_FCP_INITIATOR)4525 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;4526 if (ndlp->nlp_type & NLP_NVME_INITIATOR)4527 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;4528 if (ndlp->nlp_type & NLP_NVME_TARGET)4529 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;4530 if (ndlp->nlp_type & NLP_NVME_DISCOVERY)4531 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;4532 4533 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)4534 fc_remote_port_rolechg(rport, rport_ids.roles);4535 4536 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,4537 "3183 %s rport x%px DID x%x, role x%x refcnt %d\n",4538 __func__, rport, rport->port_id, rport->roles,4539 kref_read(&ndlp->kref));4540 4541 if ((rport->scsi_target_id != -1) &&4542 (rport->scsi_target_id < LPFC_MAX_TARGET)) {4543 ndlp->nlp_sid = rport->scsi_target_id;4544 }4545 4546 return;4547}4548 4549static void4550lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)4551{4552 struct fc_rport *rport = ndlp->rport;4553 struct lpfc_vport *vport = ndlp->vport;4554 4555 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)4556 return;4557 4558 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,4559 "rport delete: did:x%x flg:x%x type x%x",4560 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);4561 4562 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,4563 "3184 rport unregister x%06x, rport x%px "4564 "xptflg x%x refcnt %d\n",4565 ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags,4566 kref_read(&ndlp->kref));4567 4568 fc_remote_port_delete(rport);4569 lpfc_nlp_put(ndlp);4570}4571 4572static void4573lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)4574{4575 switch (state) {4576 case NLP_STE_UNUSED_NODE:4577 atomic_add(count, &vport->fc_unused_cnt);4578 break;4579 case NLP_STE_PLOGI_ISSUE:4580 atomic_add(count, &vport->fc_plogi_cnt);4581 break;4582 case NLP_STE_ADISC_ISSUE:4583 atomic_add(count, &vport->fc_adisc_cnt);4584 break;4585 case NLP_STE_REG_LOGIN_ISSUE:4586 atomic_add(count, &vport->fc_reglogin_cnt);4587 break;4588 case NLP_STE_PRLI_ISSUE:4589 atomic_add(count, &vport->fc_prli_cnt);4590 break;4591 case NLP_STE_UNMAPPED_NODE:4592 atomic_add(count, &vport->fc_unmap_cnt);4593 break;4594 case NLP_STE_MAPPED_NODE:4595 atomic_add(count, &vport->fc_map_cnt);4596 break;4597 case NLP_STE_NPR_NODE:4598 if (!atomic_read(&vport->fc_npr_cnt) && count == -1)4599 atomic_set(&vport->fc_npr_cnt, 0);4600 else4601 atomic_add(count, &vport->fc_npr_cnt);4602 break;4603 }4604}4605 4606/* Register a node with backend if not already done */4607void4608lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)4609{4610 unsigned long iflags;4611 4612 lpfc_check_nlp_post_devloss(vport, ndlp);4613 4614 spin_lock_irqsave(&ndlp->lock, iflags);4615 if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) {4616 /* Already registered with backend, trigger rescan */4617 spin_unlock_irqrestore(&ndlp->lock, iflags);4618 4619 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD &&4620 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) {4621 lpfc_nvme_rescan_port(vport, ndlp);4622 }4623 return;4624 }4625 4626 ndlp->fc4_xpt_flags |= NLP_XPT_REGD;4627 spin_unlock_irqrestore(&ndlp->lock, iflags);4628 4629 if (lpfc_valid_xpt_node(ndlp)) {4630 vport->phba->nport_event_cnt++;4631 /*4632 * Tell the fc transport about the port, if we haven't4633 * already. If we have, and it's a scsi entity, be4634 */4635 lpfc_register_remote_port(vport, ndlp);4636 }4637 4638 /* We are done if we do not have any NVME remote node */4639 if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME))4640 return;4641 4642 /* Notify the NVME transport of this new rport. */4643 if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&4644 ndlp->nlp_fc4_type & NLP_FC4_NVME) {4645 if (vport->phba->nvmet_support == 0) {4646 /* Register this rport with the transport.4647 * Only NVME Target Rports are registered with4648 * the transport.4649 */4650 if (ndlp->nlp_type & NLP_NVME_TARGET) {4651 vport->phba->nport_event_cnt++;4652 lpfc_nvme_register_port(vport, ndlp);4653 }4654 } else {4655 /* Just take an NDLP ref count since the4656 * target does not register rports.4657 */4658 lpfc_nlp_get(ndlp);4659 }4660 }4661}4662 4663/* Unregister a node with backend if not already done */4664void4665lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)4666{4667 unsigned long iflags;4668 4669 spin_lock_irqsave(&ndlp->lock, iflags);4670 if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) {4671 spin_unlock_irqrestore(&ndlp->lock, iflags);4672 lpfc_printf_vlog(vport, KERN_INFO,4673 LOG_ELS | LOG_NODE | LOG_DISCOVERY,4674 "0999 %s Not regd: ndlp x%px rport x%px DID "4675 "x%x FLG x%x XPT x%x\n",4676 __func__, ndlp, ndlp->rport, ndlp->nlp_DID,4677 ndlp->nlp_flag, ndlp->fc4_xpt_flags);4678 return;4679 }4680 4681 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD;4682 spin_unlock_irqrestore(&ndlp->lock, iflags);4683 4684 if (ndlp->rport &&4685 ndlp->fc4_xpt_flags & SCSI_XPT_REGD) {4686 vport->phba->nport_event_cnt++;4687 lpfc_unregister_remote_port(ndlp);4688 } else if (!ndlp->rport) {4689 lpfc_printf_vlog(vport, KERN_INFO,4690 LOG_ELS | LOG_NODE | LOG_DISCOVERY,4691 "1999 %s NDLP in devloss x%px DID x%x FLG x%x"4692 " XPT x%x refcnt %u\n",4693 __func__, ndlp, ndlp->nlp_DID, ndlp->nlp_flag,4694 ndlp->fc4_xpt_flags,4695 kref_read(&ndlp->kref));4696 }4697 4698 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) {4699 vport->phba->nport_event_cnt++;4700 if (vport->phba->nvmet_support == 0) {4701 /* Start devloss if target. */4702 if (ndlp->nlp_type & NLP_NVME_TARGET)4703 lpfc_nvme_unregister_port(vport, ndlp);4704 } else {4705 /* NVMET has no upcall. */4706 lpfc_nlp_put(ndlp);4707 }4708 }4709 4710}4711 4712/*4713 * Adisc state change handling4714 */4715static void4716lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,4717 int new_state)4718{4719 switch (new_state) {4720 /*4721 * Any state to ADISC_ISSUE4722 * Do nothing, adisc cmpl handling will trigger state changes4723 */4724 case NLP_STE_ADISC_ISSUE:4725 break;4726 4727 /*4728 * ADISC_ISSUE to mapped states4729 * Trigger a registration with backend, it will be nop if4730 * already registered4731 */4732 case NLP_STE_UNMAPPED_NODE:4733 ndlp->nlp_type |= NLP_FC_NODE;4734 fallthrough;4735 case NLP_STE_MAPPED_NODE:4736 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;4737 lpfc_nlp_reg_node(vport, ndlp);4738 break;4739 4740 /*4741 * ADISC_ISSUE to non-mapped states4742 * We are moving from ADISC_ISSUE to a non-mapped state because4743 * ADISC failed, we would have skipped unregistering with4744 * backend, attempt it now4745 */4746 case NLP_STE_NPR_NODE:4747 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;4748 fallthrough;4749 default:4750 lpfc_nlp_unreg_node(vport, ndlp);4751 break;4752 }4753 4754}4755 4756static void4757lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,4758 int old_state, int new_state)4759{4760 /* Trap ADISC changes here */4761 if (new_state == NLP_STE_ADISC_ISSUE ||4762 old_state == NLP_STE_ADISC_ISSUE) {4763 lpfc_handle_adisc_state(vport, ndlp, new_state);4764 return;4765 }4766 4767 if (new_state == NLP_STE_UNMAPPED_NODE) {4768 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;4769 ndlp->nlp_type |= NLP_FC_NODE;4770 }4771 if (new_state == NLP_STE_MAPPED_NODE)4772 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;4773 if (new_state == NLP_STE_NPR_NODE)4774 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;4775 4776 /* Reg/Unreg for FCP and NVME Transport interface */4777 if ((old_state == NLP_STE_MAPPED_NODE ||4778 old_state == NLP_STE_UNMAPPED_NODE)) {4779 /* For nodes marked for ADISC, Handle unreg in ADISC cmpl4780 * if linkup. In linkdown do unreg_node4781 */4782 if (!(ndlp->nlp_flag & NLP_NPR_ADISC) ||4783 !lpfc_is_link_up(vport->phba))4784 lpfc_nlp_unreg_node(vport, ndlp);4785 }4786 4787 if (new_state == NLP_STE_MAPPED_NODE ||4788 new_state == NLP_STE_UNMAPPED_NODE)4789 lpfc_nlp_reg_node(vport, ndlp);4790 4791 /*4792 * If the node just added to Mapped list was an FCP target,4793 * but the remote port registration failed or assigned a target4794 * id outside the presentable range - move the node to the4795 * Unmapped List.4796 */4797 if ((new_state == NLP_STE_MAPPED_NODE) &&4798 (ndlp->nlp_type & NLP_FCP_TARGET) &&4799 (!ndlp->rport ||4800 ndlp->rport->scsi_target_id == -1 ||4801 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {4802 spin_lock_irq(&ndlp->lock);4803 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;4804 spin_unlock_irq(&ndlp->lock);4805 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);4806 }4807}4808 4809static char *4810lpfc_nlp_state_name(char *buffer, size_t size, int state)4811{4812 static char *states[] = {4813 [NLP_STE_UNUSED_NODE] = "UNUSED",4814 [NLP_STE_PLOGI_ISSUE] = "PLOGI",4815 [NLP_STE_ADISC_ISSUE] = "ADISC",4816 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",4817 [NLP_STE_PRLI_ISSUE] = "PRLI",4818 [NLP_STE_LOGO_ISSUE] = "LOGO",4819 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",4820 [NLP_STE_MAPPED_NODE] = "MAPPED",4821 [NLP_STE_NPR_NODE] = "NPR",4822 };4823 4824 if (state < NLP_STE_MAX_STATE && states[state])4825 strscpy(buffer, states[state], size);4826 else4827 snprintf(buffer, size, "unknown (%d)", state);4828 return buffer;4829}4830 4831void4832lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,4833 int state)4834{4835 int old_state = ndlp->nlp_state;4836 int node_dropped = ndlp->nlp_flag & NLP_DROPPED;4837 char name1[16], name2[16];4838 unsigned long iflags;4839 4840 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,4841 "0904 NPort state transition x%06x, %s -> %s\n",4842 ndlp->nlp_DID,4843 lpfc_nlp_state_name(name1, sizeof(name1), old_state),4844 lpfc_nlp_state_name(name2, sizeof(name2), state));4845 4846 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,4847 "node statechg did:x%x old:%d ste:%d",4848 ndlp->nlp_DID, old_state, state);4849 4850 if (node_dropped && old_state == NLP_STE_UNUSED_NODE &&4851 state != NLP_STE_UNUSED_NODE) {4852 ndlp->nlp_flag &= ~NLP_DROPPED;4853 lpfc_nlp_get(ndlp);4854 }4855 4856 if (old_state == NLP_STE_NPR_NODE &&4857 state != NLP_STE_NPR_NODE)4858 lpfc_cancel_retry_delay_tmo(vport, ndlp);4859 if (old_state == NLP_STE_UNMAPPED_NODE) {4860 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;4861 ndlp->nlp_type &= ~NLP_FC_NODE;4862 }4863 4864 if (list_empty(&ndlp->nlp_listp)) {4865 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);4866 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);4867 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags);4868 } else if (old_state)4869 lpfc_nlp_counters(vport, old_state, -1);4870 4871 ndlp->nlp_state = state;4872 lpfc_nlp_counters(vport, state, 1);4873 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);4874}4875 4876void4877lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)4878{4879 unsigned long iflags;4880 4881 if (list_empty(&ndlp->nlp_listp)) {4882 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);4883 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);4884 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags);4885 }4886}4887 4888void4889lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)4890{4891 unsigned long iflags;4892 4893 lpfc_cancel_retry_delay_tmo(vport, ndlp);4894 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))4895 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);4896 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);4897 list_del_init(&ndlp->nlp_listp);4898 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags);4899 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,4900 NLP_STE_UNUSED_NODE);4901}4902 4903/**4904 * lpfc_initialize_node - Initialize all fields of node object4905 * @vport: Pointer to Virtual Port object.4906 * @ndlp: Pointer to FC node object.4907 * @did: FC_ID of the node.4908 *4909 * This function is always called when node object need to be initialized.4910 * It initializes all the fields of the node object. Although the reference4911 * to phba from @ndlp can be obtained indirectly through it's reference to4912 * @vport, a direct reference to phba is taken here by @ndlp. This is due4913 * to the life-span of the @ndlp might go beyond the existence of @vport as4914 * the final release of ndlp is determined by its reference count. And, the4915 * operation on @ndlp needs the reference to phba.4916 **/4917static inline void4918lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,4919 uint32_t did)4920{4921 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);4922 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);4923 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);4924 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp);4925 4926 ndlp->nlp_DID = did;4927 ndlp->vport = vport;4928 ndlp->phba = vport->phba;4929 ndlp->nlp_sid = NLP_NO_SID;4930 ndlp->nlp_fc4_type = NLP_FC4_NONE;4931 kref_init(&ndlp->kref);4932 atomic_set(&ndlp->cmd_pending, 0);4933 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;4934 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;4935}4936 4937void4938lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)4939{4940 /*4941 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should4942 * be used when lpfc wants to remove the "last" lpfc_nlp_put() to4943 * release the ndlp from the vport when conditions are correct.4944 */4945 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)4946 return;4947 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);4948 if (vport->phba->sli_rev == LPFC_SLI_REV4) {4949 lpfc_cleanup_vports_rrqs(vport, ndlp);4950 lpfc_unreg_rpi(vport, ndlp);4951 }4952 4953 /* NLP_DROPPED means another thread already removed the initial4954 * reference from lpfc_nlp_init. If set, don't drop it again and4955 * introduce an imbalance.4956 */4957 spin_lock_irq(&ndlp->lock);4958 if (!(ndlp->nlp_flag & NLP_DROPPED)) {4959 ndlp->nlp_flag |= NLP_DROPPED;4960 spin_unlock_irq(&ndlp->lock);4961 lpfc_nlp_put(ndlp);4962 return;4963 }4964 spin_unlock_irq(&ndlp->lock);4965}4966 4967/*4968 * Start / ReStart rescue timer for Discovery / RSCN handling4969 */4970void4971lpfc_set_disctmo(struct lpfc_vport *vport)4972{4973 struct lpfc_hba *phba = vport->phba;4974 uint32_t tmo;4975 4976 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {4977 /* For FAN, timeout should be greater than edtov */4978 tmo = (((phba->fc_edtov + 999) / 1000) + 1);4979 } else {4980 /* Normal discovery timeout should be > than ELS/CT timeout4981 * FC spec states we need 3 * ratov for CT requests4982 */4983 tmo = ((phba->fc_ratov * 3) + 3);4984 }4985 4986 4987 if (!timer_pending(&vport->fc_disctmo)) {4988 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,4989 "set disc timer: tmo:x%x state:x%x flg:x%x",4990 tmo, vport->port_state, vport->fc_flag);4991 }4992 4993 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));4994 set_bit(FC_DISC_TMO, &vport->fc_flag);4995 4996 /* Start Discovery Timer state <hba_state> */4997 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,4998 "0247 Start Discovery Timer state x%x "4999 "Data: x%x x%lx x%x x%x\n",5000 vport->port_state, tmo,5001 (unsigned long)&vport->fc_disctmo,5002 atomic_read(&vport->fc_plogi_cnt),5003 atomic_read(&vport->fc_adisc_cnt));5004 5005 return;5006}5007 5008/*5009 * Cancel rescue timer for Discovery / RSCN handling5010 */5011int5012lpfc_can_disctmo(struct lpfc_vport *vport)5013{5014 unsigned long iflags;5015 5016 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,5017 "can disc timer: state:x%x rtry:x%x flg:x%x",5018 vport->port_state, vport->fc_ns_retry, vport->fc_flag);5019 5020 /* Turn off discovery timer if its running */5021 if (test_bit(FC_DISC_TMO, &vport->fc_flag) ||5022 timer_pending(&vport->fc_disctmo)) {5023 clear_bit(FC_DISC_TMO, &vport->fc_flag);5024 del_timer_sync(&vport->fc_disctmo);5025 spin_lock_irqsave(&vport->work_port_lock, iflags);5026 vport->work_port_events &= ~WORKER_DISC_TMO;5027 spin_unlock_irqrestore(&vport->work_port_lock, iflags);5028 }5029 5030 /* Cancel Discovery Timer state <hba_state> */5031 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5032 "0248 Cancel Discovery Timer state x%x "5033 "Data: x%lx x%x x%x\n",5034 vport->port_state, vport->fc_flag,5035 atomic_read(&vport->fc_plogi_cnt),5036 atomic_read(&vport->fc_adisc_cnt));5037 return 0;5038}5039 5040/*5041 * Check specified ring for outstanding IOCB on the SLI queue5042 * Return true if iocb matches the specified nport5043 */5044int5045lpfc_check_sli_ndlp(struct lpfc_hba *phba,5046 struct lpfc_sli_ring *pring,5047 struct lpfc_iocbq *iocb,5048 struct lpfc_nodelist *ndlp)5049{5050 struct lpfc_vport *vport = ndlp->vport;5051 u8 ulp_command;5052 u16 ulp_context;5053 u32 remote_id;5054 5055 if (iocb->vport != vport)5056 return 0;5057 5058 ulp_command = get_job_cmnd(phba, iocb);5059 ulp_context = get_job_ulpcontext(phba, iocb);5060 remote_id = get_job_els_rsp64_did(phba, iocb);5061 5062 if (pring->ringno == LPFC_ELS_RING) {5063 switch (ulp_command) {5064 case CMD_GEN_REQUEST64_CR:5065 if (iocb->ndlp == ndlp)5066 return 1;5067 fallthrough;5068 case CMD_ELS_REQUEST64_CR:5069 if (remote_id == ndlp->nlp_DID)5070 return 1;5071 fallthrough;5072 case CMD_XMIT_ELS_RSP64_CX:5073 if (iocb->ndlp == ndlp)5074 return 1;5075 }5076 } else if (pring->ringno == LPFC_FCP_RING) {5077 /* Skip match check if waiting to relogin to FCP target */5078 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&5079 (ndlp->nlp_flag & NLP_DELAY_TMO)) {5080 return 0;5081 }5082 if (ulp_context == ndlp->nlp_rpi)5083 return 1;5084 }5085 return 0;5086}5087 5088static void5089__lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,5090 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,5091 struct list_head *dequeue_list)5092{5093 struct lpfc_iocbq *iocb, *next_iocb;5094 5095 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {5096 /* Check to see if iocb matches the nport */5097 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))5098 /* match, dequeue */5099 list_move_tail(&iocb->list, dequeue_list);5100 }5101}5102 5103static void5104lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,5105 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)5106{5107 struct lpfc_sli *psli = &phba->sli;5108 uint32_t i;5109 5110 spin_lock_irq(&phba->hbalock);5111 for (i = 0; i < psli->num_rings; i++)5112 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],5113 dequeue_list);5114 spin_unlock_irq(&phba->hbalock);5115}5116 5117static void5118lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,5119 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)5120{5121 struct lpfc_sli_ring *pring;5122 struct lpfc_queue *qp = NULL;5123 5124 spin_lock_irq(&phba->hbalock);5125 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {5126 pring = qp->pring;5127 if (!pring)5128 continue;5129 spin_lock(&pring->ring_lock);5130 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);5131 spin_unlock(&pring->ring_lock);5132 }5133 spin_unlock_irq(&phba->hbalock);5134}5135 5136/*5137 * Free resources / clean up outstanding I/Os5138 * associated with nlp_rpi in the LPFC_NODELIST entry.5139 */5140static int5141lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)5142{5143 LIST_HEAD(completions);5144 5145 lpfc_fabric_abort_nport(ndlp);5146 5147 /*5148 * Everything that matches on txcmplq will be returned5149 * by firmware with a no rpi error.5150 */5151 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {5152 if (phba->sli_rev != LPFC_SLI_REV4)5153 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);5154 else5155 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);5156 }5157 5158 /* Cancel all the IOCBs from the completions list */5159 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,5160 IOERR_SLI_ABORTED);5161 5162 return 0;5163}5164 5165/**5166 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO5167 * @phba: Pointer to HBA context object.5168 * @pmb: Pointer to mailbox object.5169 *5170 * This function will issue an ELS LOGO command after completing5171 * the UNREG_RPI.5172 **/5173static void5174lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)5175{5176 struct lpfc_vport *vport = pmb->vport;5177 struct lpfc_nodelist *ndlp;5178 5179 ndlp = pmb->ctx_ndlp;5180 if (!ndlp)5181 return;5182 lpfc_issue_els_logo(vport, ndlp, 0);5183 5184 /* Check to see if there are any deferred events to process */5185 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&5186 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {5187 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5188 "1434 UNREG cmpl deferred logo x%x "5189 "on NPort x%x Data: x%x x%px\n",5190 ndlp->nlp_rpi, ndlp->nlp_DID,5191 ndlp->nlp_defer_did, ndlp);5192 5193 ndlp->nlp_flag &= ~NLP_UNREG_INP;5194 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;5195 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);5196 } else {5197 /* NLP_RELEASE_RPI is only set for SLI4 ports. */5198 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {5199 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);5200 spin_lock_irq(&ndlp->lock);5201 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;5202 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;5203 spin_unlock_irq(&ndlp->lock);5204 }5205 spin_lock_irq(&ndlp->lock);5206 ndlp->nlp_flag &= ~NLP_UNREG_INP;5207 spin_unlock_irq(&ndlp->lock);5208 }5209 5210 /* The node has an outstanding reference for the unreg. Now5211 * that the LOGO action and cleanup are finished, release5212 * resources.5213 */5214 lpfc_nlp_put(ndlp);5215 mempool_free(pmb, phba->mbox_mem_pool);5216}5217 5218/*5219 * Sets the mailbox completion handler to be used for the5220 * unreg_rpi command. The handler varies based on the state of5221 * the port and what will be happening to the rpi next.5222 */5223static void5224lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport,5225 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox)5226{5227 unsigned long iflags;5228 5229 /* Driver always gets a reference on the mailbox job5230 * in support of async jobs.5231 */5232 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);5233 if (!mbox->ctx_ndlp)5234 return;5235 5236 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {5237 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;5238 5239 } else if (phba->sli_rev == LPFC_SLI_REV4 &&5240 !test_bit(FC_UNLOADING, &vport->load_flag) &&5241 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=5242 LPFC_SLI_INTF_IF_TYPE_2) &&5243 (kref_read(&ndlp->kref) > 0)) {5244 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr;5245 } else {5246 if (test_bit(FC_UNLOADING, &vport->load_flag)) {5247 if (phba->sli_rev == LPFC_SLI_REV4) {5248 spin_lock_irqsave(&ndlp->lock, iflags);5249 ndlp->nlp_flag |= NLP_RELEASE_RPI;5250 spin_unlock_irqrestore(&ndlp->lock, iflags);5251 }5252 }5253 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;5254 }5255}5256 5257/*5258 * Free rpi associated with LPFC_NODELIST entry.5259 * This routine is called from lpfc_freenode(), when we are removing5260 * a LPFC_NODELIST entry. It is also called if the driver initiates a5261 * LOGO that completes successfully, and we are waiting to PLOGI back5262 * to the remote NPort. In addition, it is called after we receive5263 * and unsolicated ELS cmd, send back a rsp, the rsp completes and5264 * we are waiting to PLOGI back to the remote NPort.5265 */5266int5267lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)5268{5269 struct lpfc_hba *phba = vport->phba;5270 LPFC_MBOXQ_t *mbox;5271 int rc, acc_plogi = 1;5272 uint16_t rpi;5273 5274 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||5275 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {5276 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)5277 lpfc_printf_vlog(vport, KERN_INFO,5278 LOG_NODE | LOG_DISCOVERY,5279 "3366 RPI x%x needs to be "5280 "unregistered nlp_flag x%x "5281 "did x%x\n",5282 ndlp->nlp_rpi, ndlp->nlp_flag,5283 ndlp->nlp_DID);5284 5285 /* If there is already an UNREG in progress for this ndlp,5286 * no need to queue up another one.5287 */5288 if (ndlp->nlp_flag & NLP_UNREG_INP) {5289 lpfc_printf_vlog(vport, KERN_INFO,5290 LOG_NODE | LOG_DISCOVERY,5291 "1436 unreg_rpi SKIP UNREG x%x on "5292 "NPort x%x deferred x%x flg x%x "5293 "Data: x%px\n",5294 ndlp->nlp_rpi, ndlp->nlp_DID,5295 ndlp->nlp_defer_did,5296 ndlp->nlp_flag, ndlp);5297 goto out;5298 }5299 5300 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);5301 if (mbox) {5302 /* SLI4 ports require the physical rpi value. */5303 rpi = ndlp->nlp_rpi;5304 if (phba->sli_rev == LPFC_SLI_REV4)5305 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];5306 5307 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);5308 mbox->vport = vport;5309 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox);5310 if (!mbox->ctx_ndlp) {5311 mempool_free(mbox, phba->mbox_mem_pool);5312 return 1;5313 }5314 5315 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr)5316 /*5317 * accept PLOGIs after unreg_rpi_cmpl5318 */5319 acc_plogi = 0;5320 if (((ndlp->nlp_DID & Fabric_DID_MASK) !=5321 Fabric_DID_MASK) &&5322 (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag)))5323 ndlp->nlp_flag |= NLP_UNREG_INP;5324 5325 lpfc_printf_vlog(vport, KERN_INFO,5326 LOG_NODE | LOG_DISCOVERY,5327 "1433 unreg_rpi UNREG x%x on "5328 "NPort x%x deferred flg x%x "5329 "Data:x%px\n",5330 ndlp->nlp_rpi, ndlp->nlp_DID,5331 ndlp->nlp_flag, ndlp);5332 5333 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);5334 if (rc == MBX_NOT_FINISHED) {5335 ndlp->nlp_flag &= ~NLP_UNREG_INP;5336 mempool_free(mbox, phba->mbox_mem_pool);5337 acc_plogi = 1;5338 lpfc_nlp_put(ndlp);5339 }5340 } else {5341 lpfc_printf_vlog(vport, KERN_INFO,5342 LOG_NODE | LOG_DISCOVERY,5343 "1444 Failed to allocate mempool "5344 "unreg_rpi UNREG x%x, "5345 "DID x%x, flag x%x, "5346 "ndlp x%px\n",5347 ndlp->nlp_rpi, ndlp->nlp_DID,5348 ndlp->nlp_flag, ndlp);5349 5350 /* Because mempool_alloc failed, we5351 * will issue a LOGO here and keep the rpi alive if5352 * not unloading.5353 */5354 if (!test_bit(FC_UNLOADING, &vport->load_flag)) {5355 ndlp->nlp_flag &= ~NLP_UNREG_INP;5356 lpfc_issue_els_logo(vport, ndlp, 0);5357 ndlp->nlp_prev_state = ndlp->nlp_state;5358 lpfc_nlp_set_state(vport, ndlp,5359 NLP_STE_NPR_NODE);5360 }5361 5362 return 1;5363 }5364 lpfc_no_rpi(phba, ndlp);5365out:5366 if (phba->sli_rev != LPFC_SLI_REV4)5367 ndlp->nlp_rpi = 0;5368 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;5369 ndlp->nlp_flag &= ~NLP_NPR_ADISC;5370 if (acc_plogi)5371 ndlp->nlp_flag &= ~NLP_LOGO_ACC;5372 return 1;5373 }5374 ndlp->nlp_flag &= ~NLP_LOGO_ACC;5375 return 0;5376}5377 5378/**5379 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.5380 * @phba: pointer to lpfc hba data structure.5381 *5382 * This routine is invoked to unregister all the currently registered RPIs5383 * to the HBA.5384 **/5385void5386lpfc_unreg_hba_rpis(struct lpfc_hba *phba)5387{5388 struct lpfc_vport **vports;5389 struct lpfc_nodelist *ndlp;5390 int i;5391 unsigned long iflags;5392 5393 vports = lpfc_create_vport_work_array(phba);5394 if (!vports) {5395 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,5396 "2884 Vport array allocation failed \n");5397 return;5398 }5399 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {5400 spin_lock_irqsave(&vports[i]->fc_nodes_list_lock, iflags);5401 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {5402 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {5403 /* The mempool_alloc might sleep */5404 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock,5405 iflags);5406 lpfc_unreg_rpi(vports[i], ndlp);5407 spin_lock_irqsave(&vports[i]->fc_nodes_list_lock,5408 iflags);5409 }5410 }5411 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock, iflags);5412 }5413 lpfc_destroy_vport_work_array(phba, vports);5414}5415 5416void5417lpfc_unreg_all_rpis(struct lpfc_vport *vport)5418{5419 struct lpfc_hba *phba = vport->phba;5420 LPFC_MBOXQ_t *mbox;5421 int rc;5422 5423 if (phba->sli_rev == LPFC_SLI_REV4) {5424 lpfc_sli4_unreg_all_rpis(vport);5425 return;5426 }5427 5428 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);5429 if (mbox) {5430 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,5431 mbox);5432 mbox->vport = vport;5433 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;5434 mbox->ctx_ndlp = NULL;5435 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);5436 if (rc != MBX_TIMEOUT)5437 mempool_free(mbox, phba->mbox_mem_pool);5438 5439 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))5440 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,5441 "1836 Could not issue "5442 "unreg_login(all_rpis) status %d\n",5443 rc);5444 }5445}5446 5447void5448lpfc_unreg_default_rpis(struct lpfc_vport *vport)5449{5450 struct lpfc_hba *phba = vport->phba;5451 LPFC_MBOXQ_t *mbox;5452 int rc;5453 5454 /* Unreg DID is an SLI3 operation. */5455 if (phba->sli_rev > LPFC_SLI_REV3)5456 return;5457 5458 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);5459 if (mbox) {5460 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,5461 mbox);5462 mbox->vport = vport;5463 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;5464 mbox->ctx_ndlp = NULL;5465 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);5466 if (rc != MBX_TIMEOUT)5467 mempool_free(mbox, phba->mbox_mem_pool);5468 5469 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))5470 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,5471 "1815 Could not issue "5472 "unreg_did (default rpis) status %d\n",5473 rc);5474 }5475}5476 5477/*5478 * Free resources associated with LPFC_NODELIST entry5479 * so it can be freed.5480 */5481static int5482lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)5483{5484 struct lpfc_hba *phba = vport->phba;5485 LPFC_MBOXQ_t *mb, *nextmb;5486 5487 /* Cleanup node for NPort <nlp_DID> */5488 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,5489 "0900 Cleanup node for NPort x%x "5490 "Data: x%x x%x x%x\n",5491 ndlp->nlp_DID, ndlp->nlp_flag,5492 ndlp->nlp_state, ndlp->nlp_rpi);5493 lpfc_dequeue_node(vport, ndlp);5494 5495 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */5496 5497 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */5498 if ((mb = phba->sli.mbox_active)) {5499 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&5500 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&5501 (ndlp == mb->ctx_ndlp)) {5502 mb->ctx_ndlp = NULL;5503 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;5504 }5505 }5506 5507 spin_lock_irq(&phba->hbalock);5508 /* Cleanup REG_LOGIN completions which are not yet processed */5509 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {5510 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||5511 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||5512 (ndlp != mb->ctx_ndlp))5513 continue;5514 5515 mb->ctx_ndlp = NULL;5516 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;5517 }5518 5519 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {5520 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&5521 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&5522 (ndlp == mb->ctx_ndlp)) {5523 list_del(&mb->list);5524 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED);5525 5526 /* Don't invoke lpfc_nlp_put. The driver is in5527 * lpfc_nlp_release context.5528 */5529 }5530 }5531 spin_unlock_irq(&phba->hbalock);5532 5533 lpfc_els_abort(phba, ndlp);5534 5535 spin_lock_irq(&ndlp->lock);5536 ndlp->nlp_flag &= ~NLP_DELAY_TMO;5537 spin_unlock_irq(&ndlp->lock);5538 5539 ndlp->nlp_last_elscmd = 0;5540 del_timer_sync(&ndlp->nlp_delayfunc);5541 5542 list_del_init(&ndlp->els_retry_evt.evt_listp);5543 list_del_init(&ndlp->dev_loss_evt.evt_listp);5544 list_del_init(&ndlp->recovery_evt.evt_listp);5545 lpfc_cleanup_vports_rrqs(vport, ndlp);5546 5547 if (phba->sli_rev == LPFC_SLI_REV4)5548 ndlp->nlp_flag |= NLP_RELEASE_RPI;5549 5550 return 0;5551}5552 5553static int5554lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,5555 uint32_t did)5556{5557 D_ID mydid, ndlpdid, matchdid;5558 5559 if (did == Bcast_DID)5560 return 0;5561 5562 /* First check for Direct match */5563 if (ndlp->nlp_DID == did)5564 return 1;5565 5566 /* Next check for area/domain identically equals 0 match */5567 mydid.un.word = vport->fc_myDID;5568 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {5569 return 0;5570 }5571 5572 matchdid.un.word = did;5573 ndlpdid.un.word = ndlp->nlp_DID;5574 if (matchdid.un.b.id == ndlpdid.un.b.id) {5575 if ((mydid.un.b.domain == matchdid.un.b.domain) &&5576 (mydid.un.b.area == matchdid.un.b.area)) {5577 /* This code is supposed to match the ID5578 * for a private loop device that is5579 * connect to fl_port. But we need to5580 * check that the port did not just go5581 * from pt2pt to fabric or we could end5582 * up matching ndlp->nlp_DID 000001 to5583 * fabric DID 0x201015584 */5585 if ((ndlpdid.un.b.domain == 0) &&5586 (ndlpdid.un.b.area == 0)) {5587 if (ndlpdid.un.b.id &&5588 vport->phba->fc_topology ==5589 LPFC_TOPOLOGY_LOOP)5590 return 1;5591 }5592 return 0;5593 }5594 5595 matchdid.un.word = ndlp->nlp_DID;5596 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&5597 (mydid.un.b.area == ndlpdid.un.b.area)) {5598 if ((matchdid.un.b.domain == 0) &&5599 (matchdid.un.b.area == 0)) {5600 if (matchdid.un.b.id)5601 return 1;5602 }5603 }5604 }5605 return 0;5606}5607 5608/* Search for a nodelist entry */5609static struct lpfc_nodelist *5610__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)5611{5612 struct lpfc_nodelist *ndlp;5613 uint32_t data1;5614 5615 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {5616 if (lpfc_matchdid(vport, ndlp, did)) {5617 data1 = (((uint32_t)ndlp->nlp_state << 24) |5618 ((uint32_t)ndlp->nlp_xri << 16) |5619 ((uint32_t)ndlp->nlp_type << 8)5620 );5621 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE_VERBOSE,5622 "0929 FIND node DID "5623 "Data: x%px x%x x%x x%x x%x x%px\n",5624 ndlp, ndlp->nlp_DID,5625 ndlp->nlp_flag, data1, ndlp->nlp_rpi,5626 ndlp->active_rrqs_xri_bitmap);5627 return ndlp;5628 }5629 }5630 5631 /* FIND node did <did> NOT FOUND */5632 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,5633 "0932 FIND node did x%x NOT FOUND.\n", did);5634 return NULL;5635}5636 5637struct lpfc_nodelist *5638lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)5639{5640 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);5641 struct lpfc_nodelist *ndlp;5642 unsigned long iflags;5643 5644 spin_lock_irqsave(shost->host_lock, iflags);5645 ndlp = __lpfc_findnode_did(vport, did);5646 spin_unlock_irqrestore(shost->host_lock, iflags);5647 return ndlp;5648}5649 5650struct lpfc_nodelist *5651lpfc_findnode_mapped(struct lpfc_vport *vport)5652{5653 struct lpfc_nodelist *ndlp;5654 uint32_t data1;5655 unsigned long iflags;5656 5657 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);5658 5659 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {5660 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||5661 ndlp->nlp_state == NLP_STE_MAPPED_NODE) {5662 data1 = (((uint32_t)ndlp->nlp_state << 24) |5663 ((uint32_t)ndlp->nlp_xri << 16) |5664 ((uint32_t)ndlp->nlp_type << 8) |5665 ((uint32_t)ndlp->nlp_rpi & 0xff));5666 spin_unlock_irqrestore(&vport->fc_nodes_list_lock,5667 iflags);5668 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE_VERBOSE,5669 "2025 FIND node DID MAPPED "5670 "Data: x%px x%x x%x x%x x%px\n",5671 ndlp, ndlp->nlp_DID,5672 ndlp->nlp_flag, data1,5673 ndlp->active_rrqs_xri_bitmap);5674 return ndlp;5675 }5676 }5677 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags);5678 5679 /* FIND node did <did> NOT FOUND */5680 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,5681 "2026 FIND mapped did NOT FOUND.\n");5682 return NULL;5683}5684 5685struct lpfc_nodelist *5686lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)5687{5688 struct lpfc_nodelist *ndlp;5689 5690 ndlp = lpfc_findnode_did(vport, did);5691 if (!ndlp) {5692 if (vport->phba->nvmet_support)5693 return NULL;5694 if (test_bit(FC_RSCN_MODE, &vport->fc_flag) &&5695 lpfc_rscn_payload_check(vport, did) == 0)5696 return NULL;5697 ndlp = lpfc_nlp_init(vport, did);5698 if (!ndlp)5699 return NULL;5700 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);5701 5702 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5703 "6453 Setup New Node 2B_DISC x%x "5704 "Data:x%x x%x x%lx\n",5705 ndlp->nlp_DID, ndlp->nlp_flag,5706 ndlp->nlp_state, vport->fc_flag);5707 5708 spin_lock_irq(&ndlp->lock);5709 ndlp->nlp_flag |= NLP_NPR_2B_DISC;5710 spin_unlock_irq(&ndlp->lock);5711 return ndlp;5712 }5713 5714 /* The NVME Target does not want to actively manage an rport.5715 * The goal is to allow the target to reset its state and clear5716 * pending IO in preparation for the initiator to recover.5717 */5718 if (test_bit(FC_RSCN_MODE, &vport->fc_flag) &&5719 !test_bit(FC_NDISC_ACTIVE, &vport->fc_flag)) {5720 if (lpfc_rscn_payload_check(vport, did)) {5721 5722 /* Since this node is marked for discovery,5723 * delay timeout is not needed.5724 */5725 lpfc_cancel_retry_delay_tmo(vport, ndlp);5726 5727 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5728 "6455 Setup RSCN Node 2B_DISC x%x "5729 "Data:x%x x%x x%lx\n",5730 ndlp->nlp_DID, ndlp->nlp_flag,5731 ndlp->nlp_state, vport->fc_flag);5732 5733 /* NVME Target mode waits until rport is known to be5734 * impacted by the RSCN before it transitions. No5735 * active management - just go to NPR provided the5736 * node had a valid login.5737 */5738 if (vport->phba->nvmet_support)5739 return ndlp;5740 5741 if (ndlp->nlp_state > NLP_STE_UNUSED_NODE &&5742 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) {5743 lpfc_disc_state_machine(vport, ndlp, NULL,5744 NLP_EVT_DEVICE_RECOVERY);5745 }5746 5747 spin_lock_irq(&ndlp->lock);5748 ndlp->nlp_flag |= NLP_NPR_2B_DISC;5749 spin_unlock_irq(&ndlp->lock);5750 } else {5751 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5752 "6456 Skip Setup RSCN Node x%x "5753 "Data:x%x x%x x%lx\n",5754 ndlp->nlp_DID, ndlp->nlp_flag,5755 ndlp->nlp_state, vport->fc_flag);5756 ndlp = NULL;5757 }5758 } else {5759 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5760 "6457 Setup Active Node 2B_DISC x%x "5761 "Data:x%x x%x x%lx\n",5762 ndlp->nlp_DID, ndlp->nlp_flag,5763 ndlp->nlp_state, vport->fc_flag);5764 5765 /* If the initiator received a PLOGI from this NPort or if the5766 * initiator is already in the process of discovery on it,5767 * there's no need to try to discover it again.5768 */5769 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||5770 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||5771 (!vport->phba->nvmet_support &&5772 ndlp->nlp_flag & NLP_RCV_PLOGI))5773 return NULL;5774 5775 if (vport->phba->nvmet_support)5776 return ndlp;5777 5778 /* Moving to NPR state clears unsolicited flags and5779 * allows for rediscovery5780 */5781 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);5782 5783 spin_lock_irq(&ndlp->lock);5784 ndlp->nlp_flag |= NLP_NPR_2B_DISC;5785 spin_unlock_irq(&ndlp->lock);5786 }5787 return ndlp;5788}5789 5790/* Build a list of nodes to discover based on the loopmap */5791void5792lpfc_disc_list_loopmap(struct lpfc_vport *vport)5793{5794 struct lpfc_hba *phba = vport->phba;5795 int j;5796 uint32_t alpa, index;5797 5798 if (!lpfc_is_link_up(phba))5799 return;5800 5801 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)5802 return;5803 5804 /* Check for loop map present or not */5805 if (phba->alpa_map[0]) {5806 for (j = 1; j <= phba->alpa_map[0]; j++) {5807 alpa = phba->alpa_map[j];5808 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))5809 continue;5810 lpfc_setup_disc_node(vport, alpa);5811 }5812 } else {5813 /* No alpamap, so try all alpa's */5814 for (j = 0; j < FC_MAXLOOP; j++) {5815 /* If cfg_scan_down is set, start from highest5816 * ALPA (0xef) to lowest (0x1).5817 */5818 if (vport->cfg_scan_down)5819 index = j;5820 else5821 index = FC_MAXLOOP - j - 1;5822 alpa = lpfcAlpaArray[index];5823 if ((vport->fc_myDID & 0xff) == alpa)5824 continue;5825 lpfc_setup_disc_node(vport, alpa);5826 }5827 }5828 return;5829}5830 5831/* SLI3 only */5832void5833lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)5834{5835 LPFC_MBOXQ_t *mbox;5836 struct lpfc_sli *psli = &phba->sli;5837 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];5838 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];5839 int rc;5840 5841 /*5842 * if it's not a physical port or if we already send5843 * clear_la then don't send it.5844 */5845 if ((phba->link_state >= LPFC_CLEAR_LA) ||5846 (vport->port_type != LPFC_PHYSICAL_PORT) ||5847 (phba->sli_rev == LPFC_SLI_REV4))5848 return;5849 5850 /* Link up discovery */5851 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {5852 phba->link_state = LPFC_CLEAR_LA;5853 lpfc_clear_la(phba, mbox);5854 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;5855 mbox->vport = vport;5856 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);5857 if (rc == MBX_NOT_FINISHED) {5858 mempool_free(mbox, phba->mbox_mem_pool);5859 lpfc_disc_flush_list(vport);5860 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;5861 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;5862 phba->link_state = LPFC_HBA_ERROR;5863 }5864 }5865}5866 5867/* Reg_vpi to tell firmware to resume normal operations */5868void5869lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)5870{5871 LPFC_MBOXQ_t *regvpimbox;5872 5873 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);5874 if (regvpimbox) {5875 lpfc_reg_vpi(vport, regvpimbox);5876 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;5877 regvpimbox->vport = vport;5878 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)5879 == MBX_NOT_FINISHED) {5880 mempool_free(regvpimbox, phba->mbox_mem_pool);5881 }5882 }5883}5884 5885/* Start Link up / RSCN discovery on NPR nodes */5886void5887lpfc_disc_start(struct lpfc_vport *vport)5888{5889 struct lpfc_hba *phba = vport->phba;5890 uint32_t num_sent;5891 uint32_t clear_la_pending;5892 5893 if (!lpfc_is_link_up(phba)) {5894 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,5895 "3315 Link is not up %x\n",5896 phba->link_state);5897 return;5898 }5899 5900 if (phba->link_state == LPFC_CLEAR_LA)5901 clear_la_pending = 1;5902 else5903 clear_la_pending = 0;5904 5905 if (vport->port_state < LPFC_VPORT_READY)5906 vport->port_state = LPFC_DISC_AUTH;5907 5908 lpfc_set_disctmo(vport);5909 5910 vport->fc_prevDID = vport->fc_myDID;5911 vport->num_disc_nodes = 0;5912 5913 /* Start Discovery state <hba_state> */5914 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,5915 "0202 Start Discovery port state x%x "5916 "flg x%lx Data: x%x x%x x%x\n",5917 vport->port_state, vport->fc_flag,5918 atomic_read(&vport->fc_plogi_cnt),5919 atomic_read(&vport->fc_adisc_cnt),5920 atomic_read(&vport->fc_npr_cnt));5921 5922 /* First do ADISCs - if any */5923 num_sent = lpfc_els_disc_adisc(vport);5924 5925 if (num_sent)5926 return;5927 5928 /* Register the VPI for SLI3, NPIV only. */5929 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&5930 !test_bit(FC_PT2PT, &vport->fc_flag) &&5931 !test_bit(FC_RSCN_MODE, &vport->fc_flag) &&5932 (phba->sli_rev < LPFC_SLI_REV4)) {5933 lpfc_issue_clear_la(phba, vport);5934 lpfc_issue_reg_vpi(phba, vport);5935 return;5936 }5937 5938 /*5939 * For SLI2, we need to set port_state to READY and continue5940 * discovery.5941 */5942 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {5943 /* If we get here, there is nothing to ADISC */5944 lpfc_issue_clear_la(phba, vport);5945 5946 if (!test_bit(FC_ABORT_DISCOVERY, &vport->fc_flag)) {5947 vport->num_disc_nodes = 0;5948 /* go thru NPR nodes and issue ELS PLOGIs */5949 if (atomic_read(&vport->fc_npr_cnt))5950 lpfc_els_disc_plogi(vport);5951 5952 if (!vport->num_disc_nodes) {5953 clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag);5954 lpfc_can_disctmo(vport);5955 }5956 }5957 vport->port_state = LPFC_VPORT_READY;5958 } else {5959 /* Next do PLOGIs - if any */5960 num_sent = lpfc_els_disc_plogi(vport);5961 5962 if (num_sent)5963 return;5964 5965 if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) {5966 /* Check to see if more RSCNs came in while we5967 * were processing this one.5968 */5969 if (vport->fc_rscn_id_cnt == 0 &&5970 !test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) {5971 clear_bit(FC_RSCN_MODE, &vport->fc_flag);5972 lpfc_can_disctmo(vport);5973 } else {5974 lpfc_els_handle_rscn(vport);5975 }5976 }5977 }5978 return;5979}5980 5981/*5982 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS5983 * ring the match the sppecified nodelist.5984 */5985static void5986lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)5987{5988 LIST_HEAD(completions);5989 struct lpfc_iocbq *iocb, *next_iocb;5990 struct lpfc_sli_ring *pring;5991 u32 ulp_command;5992 5993 pring = lpfc_phba_elsring(phba);5994 if (unlikely(!pring))5995 return;5996 5997 /* Error matching iocb on txq or txcmplq5998 * First check the txq.5999 */6000 spin_lock_irq(&phba->hbalock);6001 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {6002 if (iocb->ndlp != ndlp)6003 continue;6004 6005 ulp_command = get_job_cmnd(phba, iocb);6006 6007 if (ulp_command == CMD_ELS_REQUEST64_CR ||6008 ulp_command == CMD_XMIT_ELS_RSP64_CX) {6009 6010 list_move_tail(&iocb->list, &completions);6011 }6012 }6013 6014 /* Next check the txcmplq */6015 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {6016 if (iocb->ndlp != ndlp)6017 continue;6018 6019 ulp_command = get_job_cmnd(phba, iocb);6020 6021 if (ulp_command == CMD_ELS_REQUEST64_CR ||6022 ulp_command == CMD_XMIT_ELS_RSP64_CX) {6023 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);6024 }6025 }6026 spin_unlock_irq(&phba->hbalock);6027 6028 /* Make sure HBA is alive */6029 lpfc_issue_hb_tmo(phba);6030 6031 /* Cancel all the IOCBs from the completions list */6032 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,6033 IOERR_SLI_ABORTED);6034}6035 6036static void6037lpfc_disc_flush_list(struct lpfc_vport *vport)6038{6039 struct lpfc_nodelist *ndlp, *next_ndlp;6040 struct lpfc_hba *phba = vport->phba;6041 6042 if (atomic_read(&vport->fc_plogi_cnt) ||6043 atomic_read(&vport->fc_adisc_cnt)) {6044 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,6045 nlp_listp) {6046 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||6047 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {6048 lpfc_free_tx(phba, ndlp);6049 }6050 }6051 }6052}6053 6054/*6055 * lpfc_notify_xport_npr - notifies xport of node disappearance6056 * @vport: Pointer to Virtual Port object.6057 *6058 * Transitions all ndlps to NPR state. When lpfc_nlp_set_state6059 * calls lpfc_nlp_state_cleanup, the ndlp->rport is unregistered6060 * and transport notified that the node is gone.6061 * Return Code:6062 * none6063 */6064static void6065lpfc_notify_xport_npr(struct lpfc_vport *vport)6066{6067 struct lpfc_nodelist *ndlp, *next_ndlp;6068 6069 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,6070 nlp_listp) {6071 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);6072 }6073}6074void6075lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)6076{6077 lpfc_els_flush_rscn(vport);6078 lpfc_els_flush_cmd(vport);6079 lpfc_disc_flush_list(vport);6080 if (pci_channel_offline(vport->phba->pcidev))6081 lpfc_notify_xport_npr(vport);6082}6083 6084/*****************************************************************************/6085/*6086 * NAME: lpfc_disc_timeout6087 *6088 * FUNCTION: Fibre Channel driver discovery timeout routine.6089 *6090 * EXECUTION ENVIRONMENT: interrupt only6091 *6092 * CALLED FROM:6093 * Timer function6094 *6095 * RETURNS:6096 * none6097 */6098/*****************************************************************************/6099void6100lpfc_disc_timeout(struct timer_list *t)6101{6102 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);6103 struct lpfc_hba *phba = vport->phba;6104 uint32_t tmo_posted;6105 unsigned long flags = 0;6106 6107 if (unlikely(!phba))6108 return;6109 6110 spin_lock_irqsave(&vport->work_port_lock, flags);6111 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;6112 if (!tmo_posted)6113 vport->work_port_events |= WORKER_DISC_TMO;6114 spin_unlock_irqrestore(&vport->work_port_lock, flags);6115 6116 if (!tmo_posted)6117 lpfc_worker_wake_up(phba);6118 return;6119}6120 6121static void6122lpfc_disc_timeout_handler(struct lpfc_vport *vport)6123{6124 struct lpfc_hba *phba = vport->phba;6125 struct lpfc_sli *psli = &phba->sli;6126 struct lpfc_nodelist *ndlp, *next_ndlp;6127 LPFC_MBOXQ_t *initlinkmbox;6128 int rc, clrlaerr = 0;6129 6130 if (!test_and_clear_bit(FC_DISC_TMO, &vport->fc_flag))6131 return;6132 6133 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,6134 "disc timeout: state:x%x rtry:x%x flg:x%x",6135 vport->port_state, vport->fc_ns_retry, vport->fc_flag);6136 6137 switch (vport->port_state) {6138 6139 case LPFC_LOCAL_CFG_LINK:6140 /*6141 * port_state is identically LPFC_LOCAL_CFG_LINK while6142 * waiting for FAN timeout6143 */6144 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,6145 "0221 FAN timeout\n");6146 6147 /* Start discovery by sending FLOGI, clean up old rpis */6148 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,6149 nlp_listp) {6150 if (ndlp->nlp_state != NLP_STE_NPR_NODE)6151 continue;6152 if (ndlp->nlp_type & NLP_FABRIC) {6153 /* Clean up the ndlp on Fabric connections */6154 lpfc_drop_node(vport, ndlp);6155 6156 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {6157 /* Fail outstanding IO now since device6158 * is marked for PLOGI.6159 */6160 lpfc_unreg_rpi(vport, ndlp);6161 }6162 }6163 if (vport->port_state != LPFC_FLOGI) {6164 if (phba->sli_rev <= LPFC_SLI_REV3)6165 lpfc_initial_flogi(vport);6166 else6167 lpfc_issue_init_vfi(vport);6168 return;6169 }6170 break;6171 6172 case LPFC_FDISC:6173 case LPFC_FLOGI:6174 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */6175 /* Initial FLOGI timeout */6176 lpfc_printf_vlog(vport, KERN_ERR,6177 LOG_TRACE_EVENT,6178 "0222 Initial %s timeout\n",6179 vport->vpi ? "FDISC" : "FLOGI");6180 6181 /* Assume no Fabric and go on with discovery.6182 * Check for outstanding ELS FLOGI to abort.6183 */6184 6185 /* FLOGI failed, so just use loop map to make discovery list */6186 lpfc_disc_list_loopmap(vport);6187 6188 /* Start discovery */6189 lpfc_disc_start(vport);6190 break;6191 6192 case LPFC_FABRIC_CFG_LINK:6193 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for6194 NameServer login */6195 lpfc_printf_vlog(vport, KERN_ERR,6196 LOG_TRACE_EVENT,6197 "0223 Timeout while waiting for "6198 "NameServer login\n");6199 /* Next look for NameServer ndlp */6200 ndlp = lpfc_findnode_did(vport, NameServer_DID);6201 if (ndlp)6202 lpfc_els_abort(phba, ndlp);6203 6204 /* ReStart discovery */6205 goto restart_disc;6206 6207 case LPFC_NS_QRY:6208 /* Check for wait for NameServer Rsp timeout */6209 lpfc_printf_vlog(vport, KERN_ERR,6210 LOG_TRACE_EVENT,6211 "0224 NameServer Query timeout "6212 "Data: x%x x%x\n",6213 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);6214 6215 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {6216 /* Try it one more time */6217 vport->fc_ns_retry++;6218 vport->gidft_inp = 0;6219 rc = lpfc_issue_gidft(vport);6220 if (rc == 0)6221 break;6222 }6223 vport->fc_ns_retry = 0;6224 6225restart_disc:6226 /*6227 * Discovery is over.6228 * set port_state to PORT_READY if SLI2.6229 * cmpl_reg_vpi will set port_state to READY for SLI3.6230 */6231 if (phba->sli_rev < LPFC_SLI_REV4) {6232 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)6233 lpfc_issue_reg_vpi(phba, vport);6234 else {6235 lpfc_issue_clear_la(phba, vport);6236 vport->port_state = LPFC_VPORT_READY;6237 }6238 }6239 6240 /* Setup and issue mailbox INITIALIZE LINK command */6241 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);6242 if (!initlinkmbox) {6243 lpfc_printf_vlog(vport, KERN_ERR,6244 LOG_TRACE_EVENT,6245 "0206 Device Discovery "6246 "completion error\n");6247 phba->link_state = LPFC_HBA_ERROR;6248 break;6249 }6250 6251 lpfc_linkdown(phba);6252 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,6253 phba->cfg_link_speed);6254 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;6255 initlinkmbox->vport = vport;6256 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;6257 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);6258 lpfc_set_loopback_flag(phba);6259 if (rc == MBX_NOT_FINISHED)6260 mempool_free(initlinkmbox, phba->mbox_mem_pool);6261 6262 break;6263 6264 case LPFC_DISC_AUTH:6265 /* Node Authentication timeout */6266 lpfc_printf_vlog(vport, KERN_ERR,6267 LOG_TRACE_EVENT,6268 "0227 Node Authentication timeout\n");6269 lpfc_disc_flush_list(vport);6270 6271 /*6272 * set port_state to PORT_READY if SLI2.6273 * cmpl_reg_vpi will set port_state to READY for SLI3.6274 */6275 if (phba->sli_rev < LPFC_SLI_REV4) {6276 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)6277 lpfc_issue_reg_vpi(phba, vport);6278 else { /* NPIV Not enabled */6279 lpfc_issue_clear_la(phba, vport);6280 vport->port_state = LPFC_VPORT_READY;6281 }6282 }6283 break;6284 6285 case LPFC_VPORT_READY:6286 if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) {6287 lpfc_printf_vlog(vport, KERN_ERR,6288 LOG_TRACE_EVENT,6289 "0231 RSCN timeout Data: x%x "6290 "x%x x%x x%x\n",6291 vport->fc_ns_retry, LPFC_MAX_NS_RETRY,6292 vport->port_state, vport->gidft_inp);6293 6294 /* Cleanup any outstanding ELS commands */6295 lpfc_els_flush_cmd(vport);6296 6297 lpfc_els_flush_rscn(vport);6298 lpfc_disc_flush_list(vport);6299 }6300 break;6301 6302 default:6303 lpfc_printf_vlog(vport, KERN_ERR,6304 LOG_TRACE_EVENT,6305 "0273 Unexpected discovery timeout, "6306 "vport State x%x\n", vport->port_state);6307 break;6308 }6309 6310 switch (phba->link_state) {6311 case LPFC_CLEAR_LA:6312 /* CLEAR LA timeout */6313 lpfc_printf_vlog(vport, KERN_ERR,6314 LOG_TRACE_EVENT,6315 "0228 CLEAR LA timeout\n");6316 clrlaerr = 1;6317 break;6318 6319 case LPFC_LINK_UP:6320 lpfc_issue_clear_la(phba, vport);6321 fallthrough;6322 case LPFC_LINK_UNKNOWN:6323 case LPFC_WARM_START:6324 case LPFC_INIT_START:6325 case LPFC_INIT_MBX_CMDS:6326 case LPFC_LINK_DOWN:6327 case LPFC_HBA_ERROR:6328 lpfc_printf_vlog(vport, KERN_ERR,6329 LOG_TRACE_EVENT,6330 "0230 Unexpected timeout, hba link "6331 "state x%x\n", phba->link_state);6332 clrlaerr = 1;6333 break;6334 6335 case LPFC_HBA_READY:6336 break;6337 }6338 6339 if (clrlaerr) {6340 lpfc_disc_flush_list(vport);6341 if (phba->sli_rev != LPFC_SLI_REV4) {6342 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=6343 ~LPFC_STOP_IOCB_EVENT;6344 psli->sli3_ring[LPFC_FCP_RING].flag &=6345 ~LPFC_STOP_IOCB_EVENT;6346 }6347 vport->port_state = LPFC_VPORT_READY;6348 }6349 return;6350}6351 6352/*6353 * This routine handles processing a NameServer REG_LOGIN mailbox6354 * command upon completion. It is setup in the LPFC_MBOXQ6355 * as the completion routine when the command is6356 * handed off to the SLI layer.6357 */6358void6359lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)6360{6361 MAILBOX_t *mb = &pmb->u.mb;6362 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;6363 struct lpfc_vport *vport = pmb->vport;6364 6365 pmb->ctx_ndlp = NULL;6366 6367 if (phba->sli_rev < LPFC_SLI_REV4)6368 ndlp->nlp_rpi = mb->un.varWords[0];6369 ndlp->nlp_flag |= NLP_RPI_REGISTERED;6370 ndlp->nlp_type |= NLP_FABRIC;6371 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);6372 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,6373 "0004 rpi:%x DID:%x flg:%x %d x%px\n",6374 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,6375 kref_read(&ndlp->kref),6376 ndlp);6377 /*6378 * Start issuing Fabric-Device Management Interface (FDMI) command to6379 * 0xfffffa (FDMI well known port).6380 * DHBA -> DPRT -> RHBA -> RPA (physical port)6381 * DPRT -> RPRT (vports)6382 */6383 if (vport->port_type == LPFC_PHYSICAL_PORT) {6384 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */6385 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);6386 } else {6387 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);6388 }6389 6390 6391 /* decrement the node reference count held for this callback6392 * function.6393 */6394 lpfc_nlp_put(ndlp);6395 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);6396 return;6397}6398 6399static int6400lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)6401{6402 uint16_t *rpi = param;6403 6404 return ndlp->nlp_rpi == *rpi;6405}6406 6407static int6408lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)6409{6410 return memcmp(&ndlp->nlp_portname, param,6411 sizeof(ndlp->nlp_portname)) == 0;6412}6413 6414static struct lpfc_nodelist *6415__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)6416{6417 struct lpfc_nodelist *ndlp;6418 6419 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {6420 if (filter(ndlp, param)) {6421 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE_VERBOSE,6422 "3185 FIND node filter %ps DID "6423 "ndlp x%px did x%x flg x%x st x%x "6424 "xri x%x type x%x rpi x%x\n",6425 filter, ndlp, ndlp->nlp_DID,6426 ndlp->nlp_flag, ndlp->nlp_state,6427 ndlp->nlp_xri, ndlp->nlp_type,6428 ndlp->nlp_rpi);6429 return ndlp;6430 }6431 }6432 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,6433 "3186 FIND node filter %ps NOT FOUND.\n", filter);6434 return NULL;6435}6436 6437/*6438 * This routine looks up the ndlp lists for the given RPI. If rpi found it6439 * returns the node list element pointer else return NULL.6440 */6441struct lpfc_nodelist *6442__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)6443{6444 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);6445}6446 6447/*6448 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it6449 * returns the node element list pointer else return NULL.6450 */6451struct lpfc_nodelist *6452lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)6453{6454 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);6455 struct lpfc_nodelist *ndlp;6456 6457 spin_lock_irq(shost->host_lock);6458 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);6459 spin_unlock_irq(shost->host_lock);6460 return ndlp;6461}6462 6463/*6464 * This routine looks up the ndlp lists for the given RPI. If the rpi6465 * is found, the routine returns the node element list pointer else6466 * return NULL.6467 */6468struct lpfc_nodelist *6469lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)6470{6471 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);6472 struct lpfc_nodelist *ndlp;6473 unsigned long flags;6474 6475 spin_lock_irqsave(shost->host_lock, flags);6476 ndlp = __lpfc_findnode_rpi(vport, rpi);6477 spin_unlock_irqrestore(shost->host_lock, flags);6478 return ndlp;6479}6480 6481/**6482 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier6483 * @phba: pointer to lpfc hba data structure.6484 * @vpi: the physical host virtual N_Port identifier.6485 *6486 * This routine finds a vport on a HBA (referred by @phba) through a6487 * @vpi. The function walks the HBA's vport list and returns the address6488 * of the vport with the matching @vpi.6489 *6490 * Return code6491 * NULL - No vport with the matching @vpi found6492 * Otherwise - Address to the vport with the matching @vpi.6493 **/6494struct lpfc_vport *6495lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)6496{6497 struct lpfc_vport *vport;6498 unsigned long flags;6499 int i = 0;6500 6501 /* The physical ports are always vpi 0 - translate is unnecessary. */6502 if (vpi > 0) {6503 /*6504 * Translate the physical vpi to the logical vpi. The6505 * vport stores the logical vpi.6506 */6507 for (i = 0; i <= phba->max_vpi; i++) {6508 if (vpi == phba->vpi_ids[i])6509 break;6510 }6511 6512 if (i > phba->max_vpi) {6513 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6514 "2936 Could not find Vport mapped "6515 "to vpi %d\n", vpi);6516 return NULL;6517 }6518 }6519 6520 spin_lock_irqsave(&phba->port_list_lock, flags);6521 list_for_each_entry(vport, &phba->port_list, listentry) {6522 if (vport->vpi == i) {6523 spin_unlock_irqrestore(&phba->port_list_lock, flags);6524 return vport;6525 }6526 }6527 spin_unlock_irqrestore(&phba->port_list_lock, flags);6528 return NULL;6529}6530 6531struct lpfc_nodelist *6532lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)6533{6534 struct lpfc_nodelist *ndlp;6535 int rpi = LPFC_RPI_ALLOC_ERROR;6536 6537 if (vport->phba->sli_rev == LPFC_SLI_REV4) {6538 rpi = lpfc_sli4_alloc_rpi(vport->phba);6539 if (rpi == LPFC_RPI_ALLOC_ERROR)6540 return NULL;6541 }6542 6543 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);6544 if (!ndlp) {6545 if (vport->phba->sli_rev == LPFC_SLI_REV4)6546 lpfc_sli4_free_rpi(vport->phba, rpi);6547 return NULL;6548 }6549 6550 memset(ndlp, 0, sizeof (struct lpfc_nodelist));6551 6552 spin_lock_init(&ndlp->lock);6553 6554 lpfc_initialize_node(vport, ndlp, did);6555 INIT_LIST_HEAD(&ndlp->nlp_listp);6556 if (vport->phba->sli_rev == LPFC_SLI_REV4) {6557 ndlp->nlp_rpi = rpi;6558 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,6559 "0007 Init New ndlp x%px, rpi:x%x DID:%x "6560 "flg:x%x refcnt:%d\n",6561 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID,6562 ndlp->nlp_flag, kref_read(&ndlp->kref));6563 6564 ndlp->active_rrqs_xri_bitmap =6565 mempool_alloc(vport->phba->active_rrq_pool,6566 GFP_KERNEL);6567 if (ndlp->active_rrqs_xri_bitmap)6568 memset(ndlp->active_rrqs_xri_bitmap, 0,6569 ndlp->phba->cfg_rrq_xri_bitmap_sz);6570 }6571 6572 6573 6574 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,6575 "node init: did:x%x",6576 ndlp->nlp_DID, 0, 0);6577 6578 return ndlp;6579}6580 6581/* This routine releases all resources associated with a specifc NPort's ndlp6582 * and mempool_free's the nodelist.6583 */6584static void6585lpfc_nlp_release(struct kref *kref)6586{6587 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,6588 kref);6589 struct lpfc_vport *vport = ndlp->vport;6590 6591 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,6592 "node release: did:x%x flg:x%x type:x%x",6593 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);6594 6595 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,6596 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n",6597 __func__, ndlp, ndlp->nlp_DID,6598 kref_read(&ndlp->kref), ndlp->nlp_rpi);6599 6600 /* remove ndlp from action. */6601 lpfc_cancel_retry_delay_tmo(vport, ndlp);6602 lpfc_cleanup_node(vport, ndlp);6603 6604 /* Not all ELS transactions have registered the RPI with the port.6605 * In these cases the rpi usage is temporary and the node is6606 * released when the WQE is completed. Catch this case to free the6607 * RPI to the pool. Because this node is in the release path, a lock6608 * is unnecessary. All references are gone and the node has been6609 * dequeued.6610 */6611 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {6612 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR &&6613 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) {6614 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);6615 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;6616 }6617 }6618 6619 /* The node is not freed back to memory, it is released to a pool so6620 * the node fields need to be cleaned up.6621 */6622 ndlp->vport = NULL;6623 ndlp->nlp_state = NLP_STE_FREED_NODE;6624 ndlp->nlp_flag = 0;6625 ndlp->fc4_xpt_flags = 0;6626 6627 /* free ndlp memory for final ndlp release */6628 if (ndlp->phba->sli_rev == LPFC_SLI_REV4)6629 mempool_free(ndlp->active_rrqs_xri_bitmap,6630 ndlp->phba->active_rrq_pool);6631 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);6632}6633 6634/* This routine bumps the reference count for a ndlp structure to ensure6635 * that one discovery thread won't free a ndlp while another discovery thread6636 * is using it.6637 */6638struct lpfc_nodelist *6639lpfc_nlp_get(struct lpfc_nodelist *ndlp)6640{6641 unsigned long flags;6642 6643 if (ndlp) {6644 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,6645 "node get: did:x%x flg:x%x refcnt:x%x",6646 ndlp->nlp_DID, ndlp->nlp_flag,6647 kref_read(&ndlp->kref));6648 6649 /* The check of ndlp usage to prevent incrementing the6650 * ndlp reference count that is in the process of being6651 * released.6652 */6653 spin_lock_irqsave(&ndlp->lock, flags);6654 if (!kref_get_unless_zero(&ndlp->kref)) {6655 spin_unlock_irqrestore(&ndlp->lock, flags);6656 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,6657 "0276 %s: ndlp:x%px refcnt:%d\n",6658 __func__, (void *)ndlp, kref_read(&ndlp->kref));6659 return NULL;6660 }6661 spin_unlock_irqrestore(&ndlp->lock, flags);6662 } else {6663 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__);6664 }6665 6666 return ndlp;6667}6668 6669/* This routine decrements the reference count for a ndlp structure. If the6670 * count goes to 0, this indicates the associated nodelist should be freed.6671 */6672int6673lpfc_nlp_put(struct lpfc_nodelist *ndlp)6674{6675 if (ndlp) {6676 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,6677 "node put: did:x%x flg:x%x refcnt:x%x",6678 ndlp->nlp_DID, ndlp->nlp_flag,6679 kref_read(&ndlp->kref));6680 } else {6681 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__);6682 }6683 6684 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;6685}6686 6687/**6688 * lpfc_fcf_inuse - Check if FCF can be unregistered.6689 * @phba: Pointer to hba context object.6690 *6691 * This function iterate through all FC nodes associated6692 * will all vports to check if there is any node with6693 * fc_rports associated with it. If there is an fc_rport6694 * associated with the node, then the node is either in6695 * discovered state or its devloss_timer is pending.6696 */6697static int6698lpfc_fcf_inuse(struct lpfc_hba *phba)6699{6700 struct lpfc_vport **vports;6701 int i, ret = 0;6702 struct lpfc_nodelist *ndlp;6703 unsigned long iflags;6704 6705 vports = lpfc_create_vport_work_array(phba);6706 6707 /* If driver cannot allocate memory, indicate fcf is in use */6708 if (!vports)6709 return 1;6710 6711 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {6712 /*6713 * IF the CVL_RCVD bit is not set then we have sent the6714 * flogi.6715 * If dev_loss fires while we are waiting we do not want to6716 * unreg the fcf.6717 */6718 if (!test_bit(FC_VPORT_CVL_RCVD, &vports[i]->fc_flag)) {6719 ret = 1;6720 goto out;6721 }6722 spin_lock_irqsave(&vports[i]->fc_nodes_list_lock, iflags);6723 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {6724 if (ndlp->rport &&6725 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {6726 ret = 1;6727 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock,6728 iflags);6729 goto out;6730 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {6731 ret = 1;6732 lpfc_printf_log(phba, KERN_INFO,6733 LOG_NODE | LOG_DISCOVERY,6734 "2624 RPI %x DID %x flag %x "6735 "still logged in\n",6736 ndlp->nlp_rpi, ndlp->nlp_DID,6737 ndlp->nlp_flag);6738 }6739 }6740 spin_unlock_irqrestore(&vports[i]->fc_nodes_list_lock, iflags);6741 }6742out:6743 lpfc_destroy_vport_work_array(phba, vports);6744 return ret;6745}6746 6747/**6748 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.6749 * @phba: Pointer to hba context object.6750 * @mboxq: Pointer to mailbox object.6751 *6752 * This function frees memory associated with the mailbox command.6753 */6754void6755lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)6756{6757 struct lpfc_vport *vport = mboxq->vport;6758 6759 if (mboxq->u.mb.mbxStatus) {6760 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6761 "2555 UNREG_VFI mbxStatus error x%x "6762 "HBA state x%x\n",6763 mboxq->u.mb.mbxStatus, vport->port_state);6764 }6765 clear_bit(FC_VFI_REGISTERED, &phba->pport->fc_flag);6766 mempool_free(mboxq, phba->mbox_mem_pool);6767 return;6768}6769 6770/**6771 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.6772 * @phba: Pointer to hba context object.6773 * @mboxq: Pointer to mailbox object.6774 *6775 * This function frees memory associated with the mailbox command.6776 */6777static void6778lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)6779{6780 struct lpfc_vport *vport = mboxq->vport;6781 6782 if (mboxq->u.mb.mbxStatus) {6783 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6784 "2550 UNREG_FCFI mbxStatus error x%x "6785 "HBA state x%x\n",6786 mboxq->u.mb.mbxStatus, vport->port_state);6787 }6788 mempool_free(mboxq, phba->mbox_mem_pool);6789 return;6790}6791 6792/**6793 * lpfc_unregister_fcf_prep - Unregister fcf record preparation6794 * @phba: Pointer to hba context object.6795 *6796 * This function prepare the HBA for unregistering the currently registered6797 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and6798 * VFIs.6799 */6800int6801lpfc_unregister_fcf_prep(struct lpfc_hba *phba)6802{6803 struct lpfc_vport **vports;6804 struct lpfc_nodelist *ndlp;6805 struct Scsi_Host *shost;6806 int i = 0, rc;6807 6808 /* Unregister RPIs */6809 if (lpfc_fcf_inuse(phba))6810 lpfc_unreg_hba_rpis(phba);6811 6812 /* At this point, all discovery is aborted */6813 phba->pport->port_state = LPFC_VPORT_UNKNOWN;6814 6815 /* Unregister VPIs */6816 vports = lpfc_create_vport_work_array(phba);6817 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))6818 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {6819 /* Stop FLOGI/FDISC retries */6820 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);6821 if (ndlp)6822 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);6823 lpfc_cleanup_pending_mbox(vports[i]);6824 if (phba->sli_rev == LPFC_SLI_REV4)6825 lpfc_sli4_unreg_all_rpis(vports[i]);6826 lpfc_mbx_unreg_vpi(vports[i]);6827 shost = lpfc_shost_from_vport(vports[i]);6828 spin_lock_irq(shost->host_lock);6829 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;6830 spin_unlock_irq(shost->host_lock);6831 set_bit(FC_VPORT_NEEDS_INIT_VPI, &vports[i]->fc_flag);6832 }6833 lpfc_destroy_vport_work_array(phba, vports);6834 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {6835 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);6836 if (ndlp)6837 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);6838 lpfc_cleanup_pending_mbox(phba->pport);6839 if (phba->sli_rev == LPFC_SLI_REV4)6840 lpfc_sli4_unreg_all_rpis(phba->pport);6841 lpfc_mbx_unreg_vpi(phba->pport);6842 shost = lpfc_shost_from_vport(phba->pport);6843 spin_lock_irq(shost->host_lock);6844 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;6845 spin_unlock_irq(shost->host_lock);6846 set_bit(FC_VPORT_NEEDS_INIT_VPI, &phba->pport->fc_flag);6847 }6848 6849 /* Cleanup any outstanding ELS commands */6850 lpfc_els_flush_all_cmd(phba);6851 6852 /* Unregister the physical port VFI */6853 rc = lpfc_issue_unreg_vfi(phba->pport);6854 return rc;6855}6856 6857/**6858 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record6859 * @phba: Pointer to hba context object.6860 *6861 * This function issues synchronous unregister FCF mailbox command to HBA to6862 * unregister the currently registered FCF record. The driver does not reset6863 * the driver FCF usage state flags.6864 *6865 * Return 0 if successfully issued, none-zero otherwise.6866 */6867int6868lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)6869{6870 LPFC_MBOXQ_t *mbox;6871 int rc;6872 6873 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);6874 if (!mbox) {6875 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6876 "2551 UNREG_FCFI mbox allocation failed"6877 "HBA state x%x\n", phba->pport->port_state);6878 return -ENOMEM;6879 }6880 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);6881 mbox->vport = phba->pport;6882 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;6883 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);6884 6885 if (rc == MBX_NOT_FINISHED) {6886 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6887 "2552 Unregister FCFI command failed rc x%x "6888 "HBA state x%x\n",6889 rc, phba->pport->port_state);6890 return -EINVAL;6891 }6892 return 0;6893}6894 6895/**6896 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan6897 * @phba: Pointer to hba context object.6898 *6899 * This function unregisters the currently reigstered FCF. This function6900 * also tries to find another FCF for discovery by rescan the HBA FCF table.6901 */6902void6903lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)6904{6905 int rc;6906 6907 /* Preparation for unregistering fcf */6908 rc = lpfc_unregister_fcf_prep(phba);6909 if (rc) {6910 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6911 "2748 Failed to prepare for unregistering "6912 "HBA's FCF record: rc=%d\n", rc);6913 return;6914 }6915 6916 /* Now, unregister FCF record and reset HBA FCF state */6917 rc = lpfc_sli4_unregister_fcf(phba);6918 if (rc)6919 return;6920 /* Reset HBA FCF states after successful unregister FCF */6921 spin_lock_irq(&phba->hbalock);6922 phba->fcf.fcf_flag = 0;6923 spin_unlock_irq(&phba->hbalock);6924 phba->fcf.current_rec.flag = 0;6925 6926 /*6927 * If driver is not unloading, check if there is any other6928 * FCF record that can be used for discovery.6929 */6930 if (test_bit(FC_UNLOADING, &phba->pport->load_flag) ||6931 phba->link_state < LPFC_LINK_UP)6932 return;6933 6934 /* This is considered as the initial FCF discovery scan */6935 spin_lock_irq(&phba->hbalock);6936 phba->fcf.fcf_flag |= FCF_INIT_DISC;6937 spin_unlock_irq(&phba->hbalock);6938 6939 /* Reset FCF roundrobin bmask for new discovery */6940 lpfc_sli4_clear_fcf_rr_bmask(phba);6941 6942 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);6943 6944 if (rc) {6945 spin_lock_irq(&phba->hbalock);6946 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;6947 spin_unlock_irq(&phba->hbalock);6948 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6949 "2553 lpfc_unregister_unused_fcf failed "6950 "to read FCF record HBA state x%x\n",6951 phba->pport->port_state);6952 }6953}6954 6955/**6956 * lpfc_unregister_fcf - Unregister the currently registered fcf record6957 * @phba: Pointer to hba context object.6958 *6959 * This function just unregisters the currently reigstered FCF. It does not6960 * try to find another FCF for discovery.6961 */6962void6963lpfc_unregister_fcf(struct lpfc_hba *phba)6964{6965 int rc;6966 6967 /* Preparation for unregistering fcf */6968 rc = lpfc_unregister_fcf_prep(phba);6969 if (rc) {6970 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,6971 "2749 Failed to prepare for unregistering "6972 "HBA's FCF record: rc=%d\n", rc);6973 return;6974 }6975 6976 /* Now, unregister FCF record and reset HBA FCF state */6977 rc = lpfc_sli4_unregister_fcf(phba);6978 if (rc)6979 return;6980 /* Set proper HBA FCF states after successful unregister FCF */6981 spin_lock_irq(&phba->hbalock);6982 phba->fcf.fcf_flag &= ~FCF_REGISTERED;6983 spin_unlock_irq(&phba->hbalock);6984}6985 6986/**6987 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.6988 * @phba: Pointer to hba context object.6989 *6990 * This function check if there are any connected remote port for the FCF and6991 * if all the devices are disconnected, this function unregister FCFI.6992 * This function also tries to use another FCF for discovery.6993 */6994void6995lpfc_unregister_unused_fcf(struct lpfc_hba *phba)6996{6997 /*6998 * If HBA is not running in FIP mode, if HBA does not support6999 * FCoE, if FCF discovery is ongoing, or if FCF has not been7000 * registered, do nothing.7001 */7002 spin_lock_irq(&phba->hbalock);7003 if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag) ||7004 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||7005 !test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) ||7006 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||7007 phba->pport->port_state == LPFC_FLOGI) {7008 spin_unlock_irq(&phba->hbalock);7009 return;7010 }7011 spin_unlock_irq(&phba->hbalock);7012 7013 if (lpfc_fcf_inuse(phba))7014 return;7015 7016 lpfc_unregister_fcf_rescan(phba);7017}7018 7019/**7020 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.7021 * @phba: Pointer to hba context object.7022 * @buff: Buffer containing the FCF connection table as in the config7023 * region.7024 * This function create driver data structure for the FCF connection7025 * record table read from config region 23.7026 */7027static void7028lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,7029 uint8_t *buff)7030{7031 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;7032 struct lpfc_fcf_conn_hdr *conn_hdr;7033 struct lpfc_fcf_conn_rec *conn_rec;7034 uint32_t record_count;7035 int i;7036 7037 /* Free the current connect table */7038 list_for_each_entry_safe(conn_entry, next_conn_entry,7039 &phba->fcf_conn_rec_list, list) {7040 list_del_init(&conn_entry->list);7041 kfree(conn_entry);7042 }7043 7044 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;7045 record_count = conn_hdr->length * sizeof(uint32_t)/7046 sizeof(struct lpfc_fcf_conn_rec);7047 7048 conn_rec = (struct lpfc_fcf_conn_rec *)7049 (buff + sizeof(struct lpfc_fcf_conn_hdr));7050 7051 for (i = 0; i < record_count; i++) {7052 if (!(conn_rec[i].flags & FCFCNCT_VALID))7053 continue;7054 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),7055 GFP_KERNEL);7056 if (!conn_entry) {7057 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,7058 "2566 Failed to allocate connection"7059 " table entry\n");7060 return;7061 }7062 7063 memcpy(&conn_entry->conn_rec, &conn_rec[i],7064 sizeof(struct lpfc_fcf_conn_rec));7065 list_add_tail(&conn_entry->list,7066 &phba->fcf_conn_rec_list);7067 }7068 7069 if (!list_empty(&phba->fcf_conn_rec_list)) {7070 i = 0;7071 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,7072 list) {7073 conn_rec = &conn_entry->conn_rec;7074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,7075 "3345 FCF connection list rec[%02d]: "7076 "flags:x%04x, vtag:x%04x, "7077 "fabric_name:x%02x:%02x:%02x:%02x:"7078 "%02x:%02x:%02x:%02x, "7079 "switch_name:x%02x:%02x:%02x:%02x:"7080 "%02x:%02x:%02x:%02x\n", i++,7081 conn_rec->flags, conn_rec->vlan_tag,7082 conn_rec->fabric_name[0],7083 conn_rec->fabric_name[1],7084 conn_rec->fabric_name[2],7085 conn_rec->fabric_name[3],7086 conn_rec->fabric_name[4],7087 conn_rec->fabric_name[5],7088 conn_rec->fabric_name[6],7089 conn_rec->fabric_name[7],7090 conn_rec->switch_name[0],7091 conn_rec->switch_name[1],7092 conn_rec->switch_name[2],7093 conn_rec->switch_name[3],7094 conn_rec->switch_name[4],7095 conn_rec->switch_name[5],7096 conn_rec->switch_name[6],7097 conn_rec->switch_name[7]);7098 }7099 }7100}7101 7102/**7103 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..7104 * @phba: Pointer to hba context object.7105 * @buff: Buffer containing the FCoE parameter data structure.7106 *7107 * This function update driver data structure with config7108 * parameters read from config region 23.7109 */7110static void7111lpfc_read_fcoe_param(struct lpfc_hba *phba,7112 uint8_t *buff)7113{7114 struct lpfc_fip_param_hdr *fcoe_param_hdr;7115 struct lpfc_fcoe_params *fcoe_param;7116 7117 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)7118 buff;7119 fcoe_param = (struct lpfc_fcoe_params *)7120 (buff + sizeof(struct lpfc_fip_param_hdr));7121 7122 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||7123 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))7124 return;7125 7126 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {7127 phba->valid_vlan = 1;7128 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &7129 0xFFF;7130 }7131 7132 phba->fc_map[0] = fcoe_param->fc_map[0];7133 phba->fc_map[1] = fcoe_param->fc_map[1];7134 phba->fc_map[2] = fcoe_param->fc_map[2];7135 return;7136}7137 7138/**7139 * lpfc_get_rec_conf23 - Get a record type in config region data.7140 * @buff: Buffer containing config region 23 data.7141 * @size: Size of the data buffer.7142 * @rec_type: Record type to be searched.7143 *7144 * This function searches config region data to find the beginning7145 * of the record specified by record_type. If record found, this7146 * function return pointer to the record else return NULL.7147 */7148static uint8_t *7149lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)7150{7151 uint32_t offset = 0, rec_length;7152 7153 if ((buff[0] == LPFC_REGION23_LAST_REC) ||7154 (size < sizeof(uint32_t)))7155 return NULL;7156 7157 rec_length = buff[offset + 1];7158 7159 /*7160 * One TLV record has one word header and number of data words7161 * specified in the rec_length field of the record header.7162 */7163 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))7164 <= size) {7165 if (buff[offset] == rec_type)7166 return &buff[offset];7167 7168 if (buff[offset] == LPFC_REGION23_LAST_REC)7169 return NULL;7170 7171 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);7172 rec_length = buff[offset + 1];7173 }7174 return NULL;7175}7176 7177/**7178 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.7179 * @phba: Pointer to lpfc_hba data structure.7180 * @buff: Buffer containing config region 23 data.7181 * @size: Size of the data buffer.7182 *7183 * This function parses the FCoE config parameters in config region 23 and7184 * populate driver data structure with the parameters.7185 */7186void7187lpfc_parse_fcoe_conf(struct lpfc_hba *phba,7188 uint8_t *buff,7189 uint32_t size)7190{7191 uint32_t offset = 0;7192 uint8_t *rec_ptr;7193 7194 /*7195 * If data size is less than 2 words signature and version cannot be7196 * verified.7197 */7198 if (size < 2*sizeof(uint32_t))7199 return;7200 7201 /* Check the region signature first */7202 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {7203 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,7204 "2567 Config region 23 has bad signature\n");7205 return;7206 }7207 7208 offset += 4;7209 7210 /* Check the data structure version */7211 if (buff[offset] != LPFC_REGION23_VERSION) {7212 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,7213 "2568 Config region 23 has bad version\n");7214 return;7215 }7216 offset += 4;7217 7218 /* Read FCoE param record */7219 rec_ptr = lpfc_get_rec_conf23(&buff[offset],7220 size - offset, FCOE_PARAM_TYPE);7221 if (rec_ptr)7222 lpfc_read_fcoe_param(phba, rec_ptr);7223 7224 /* Read FCF connection table */7225 rec_ptr = lpfc_get_rec_conf23(&buff[offset],7226 size - offset, FCOE_CONN_TBL_TYPE);7227 if (rec_ptr)7228 lpfc_read_fcf_conn_tbl(phba, rec_ptr);7229 7230}7231 7232/*7233 * lpfc_error_lost_link - IO failure from link event or FW reset check.7234 *7235 * @vport: Pointer to lpfc_vport data structure.7236 * @ulp_status: IO completion status.7237 * @ulp_word4: Reason code for the ulp_status.7238 *7239 * This function evaluates the ulp_status and ulp_word4 values7240 * for specific error values that indicate an internal link fault7241 * or fw reset event for the completing IO. Callers require this7242 * common data to decide next steps on the IO.7243 *7244 * Return:7245 * false - No link or reset error occurred.7246 * true - A link or reset error occurred.7247 */7248bool7249lpfc_error_lost_link(struct lpfc_vport *vport, u32 ulp_status, u32 ulp_word4)7250{7251 /* Mask off the extra port data to get just the reason code. */7252 u32 rsn_code = IOERR_PARAM_MASK & ulp_word4;7253 7254 if (ulp_status == IOSTAT_LOCAL_REJECT &&7255 (rsn_code == IOERR_SLI_ABORTED ||7256 rsn_code == IOERR_LINK_DOWN ||7257 rsn_code == IOERR_SLI_DOWN)) {7258 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI | LOG_ELS,7259 "0408 Report link error true: <x%x:x%x>\n",7260 ulp_status, ulp_word4);7261 return true;7262 }7263 7264 return false;7265}7266