1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2021 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. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
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 *******************************************************************/
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>
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>
42 #include "lpfc_disc.h"
44 #include "lpfc_sli4.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"
53 /* AlpaArray for assignment of scsid for scan-down and bind_method */
54 static 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, 0x01
70 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
71 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
72 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
73 static int lpfc_fcf_inuse(struct lpfc_hba *);
74 static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *);
75 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba);
76 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba);
79 lpfc_valid_xpt_node(struct lpfc_nodelist *ndlp)
81 if (ndlp->nlp_fc4_type ||
82 ndlp->nlp_type & NLP_FABRIC)
86 /* The source of a terminate rport I/O is either a dev_loss_tmo
87 * event or a call to fc_remove_host. While the rport should be
88 * valid during these downcalls, the transport can call twice
89 * in a single event. This routine provides somoe protection
90 * as the NDLP isn't really free, just released to the pool.
93 lpfc_rport_invalid(struct fc_rport *rport)
95 struct lpfc_rport_data *rdata;
96 struct lpfc_nodelist *ndlp;
99 pr_err("**** %s: NULL rport, exit.\n", __func__);
103 rdata = rport->dd_data;
105 pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n",
106 __func__, rport, rport->scsi_target_id);
112 pr_err("**** %s: NULL ndlp on rport x%px SID x%x\n",
113 __func__, rport, rport->scsi_target_id);
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);
127 lpfc_terminate_rport_io(struct fc_rport *rport)
129 struct lpfc_rport_data *rdata;
130 struct lpfc_nodelist *ndlp;
131 struct lpfc_vport *vport;
133 if (lpfc_rport_invalid(rport))
136 rdata = rport->dd_data;
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);
143 if (ndlp->nlp_sid != NLP_NO_SID)
144 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
148 * This function will be called when dev_loss_tmo fire.
151 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
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;
159 ndlp = ((struct lpfc_rport_data *)rport->dd_data)->pnode;
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);
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%x refcnt %d\n",
173 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag,
174 vport->load_flag, kref_read(&ndlp->kref));
176 /* Don't schedule a worker thread event if the vport is going down.
177 * The teardown process cleans up the node via lpfc_drop_node.
179 if (vport->load_flag & FC_UNLOADING) {
180 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL;
183 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;
185 /* Remove the node reference from remote_port_add now.
186 * The driver will not call remote_port_delete.
192 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
195 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
196 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
197 "6789 rport name %llx != node port name %llx",
199 wwn_to_u64(ndlp->nlp_portname.u.wwn));
201 evtp = &ndlp->dev_loss_evt;
203 if (!list_empty(&evtp->evt_listp)) {
204 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
205 "6790 rport name %llx dev_loss_evt pending\n",
210 spin_lock_irqsave(&ndlp->lock, iflags);
211 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
213 /* If there is a PLOGI in progress, and we are in a
214 * NLP_NPR_2B_DISC state, don't turn off the flag.
216 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE)
217 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
220 * The backend does not expect any more calls associated with this
221 * rport. Remove the association between rport and ndlp.
223 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;
224 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL;
226 spin_unlock_irqrestore(&ndlp->lock, iflags);
228 /* We need to hold the node by incrementing the reference
229 * count until this queued work is done
231 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
233 spin_lock_irqsave(&phba->hbalock, iflags);
234 if (evtp->evt_arg1) {
235 evtp->evt = LPFC_EVT_DEV_LOSS;
236 list_add_tail(&evtp->evt_listp, &phba->work_list);
237 lpfc_worker_wake_up(phba);
239 spin_unlock_irqrestore(&phba->hbalock, iflags);
245 * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport
246 * @vport: Pointer to vport context object.
248 * This function checks for idle VMID entries related to a particular vport. If
249 * found unused/idle, free them accordingly.
251 static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport)
254 u32 difftime = 0, r, bucket;
257 struct lpfc_vmid *vmp;
259 write_lock(&vport->vmid_lock);
261 if (!vport->cur_vmid_cnt)
264 /* iterate through the table */
265 hash_for_each(vport->hash_table, bucket, vmp, hnode) {
267 if (vmp->flag & LPFC_VMID_REGISTERED) {
268 /* check if the particular VMID is in use */
269 /* for all available per cpu variable */
270 for_each_possible_cpu(cpu) {
271 /* if last access time is less than timeout */
272 lta = per_cpu_ptr(vmp->last_io_time, cpu);
275 difftime = (jiffies) - (*lta);
276 if ((vport->vmid_inactivity_timeout *
277 JIFFIES_PER_HR) > difftime) {
283 /* if none of the cpus have been used by the vm, */
284 /* remove the entry if already registered */
286 /* mark the entry for deregistration */
287 vmp->flag = LPFC_VMID_DE_REGISTER;
288 write_unlock(&vport->vmid_lock);
289 if (vport->vmid_priority_tagging)
290 r = lpfc_vmid_uvem(vport, vmp, false);
292 r = lpfc_vmid_cmd(vport,
296 /* decrement number of active vms and mark */
297 /* entry in slot as free */
298 write_lock(&vport->vmid_lock);
300 struct lpfc_vmid *ht = vmp;
302 vport->cur_vmid_cnt--;
303 ht->flag = LPFC_VMID_SLOT_FREE;
304 free_percpu(ht->last_io_time);
305 ht->last_io_time = NULL;
306 hash_del(&ht->hnode);
312 write_unlock(&vport->vmid_lock);
316 * lpfc_check_inactive_vmid - VMID inactivity checker
317 * @phba: Pointer to hba context object.
319 * This function is called from the worker thread to determine if an entry in
320 * the VMID table can be released since there was no I/O activity seen from that
321 * particular VM for the specified time. When this happens, the entry in the
322 * table is released and also the resources on the switch cleared.
325 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba)
327 struct lpfc_vport *vport;
328 struct lpfc_vport **vports;
331 vports = lpfc_create_vport_work_array(phba);
335 for (i = 0; i <= phba->max_vports; i++) {
336 if ((!vports[i]) && (i == 0))
343 lpfc_check_inactive_vmid_one(vport);
345 lpfc_destroy_vport_work_array(phba, vports);
349 * lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss
350 * @vport: Pointer to vport object.
351 * @ndlp: Pointer to remote node object.
353 * If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of
354 * node during dev_loss_tmo processing, then this function restores the nlp_put
355 * kref decrement from lpfc_dev_loss_tmo_handler.
358 lpfc_check_nlp_post_devloss(struct lpfc_vport *vport,
359 struct lpfc_nodelist *ndlp)
361 unsigned long iflags;
363 spin_lock_irqsave(&ndlp->lock, iflags);
364 if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) {
365 ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS;
366 spin_unlock_irqrestore(&ndlp->lock, iflags);
368 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE,
369 "8438 Devloss timeout reversed on DID x%x "
370 "refcnt %d ndlp %p flag x%x "
371 "port_state = x%x\n",
372 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp,
373 ndlp->nlp_flag, vport->port_state);
374 spin_lock_irqsave(&ndlp->lock, iflags);
376 spin_unlock_irqrestore(&ndlp->lock, iflags);
380 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
381 * @ndlp: Pointer to remote node object.
383 * This function is called from the worker thread when devloss timeout timer
384 * expires. For SLI4 host, this routine shall return 1 when at lease one
385 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
386 * routine shall return 0 when there is no remote node is still in use of FCF
387 * when devloss timeout happened to this @ndlp.
390 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
392 struct lpfc_vport *vport;
393 struct lpfc_hba *phba;
397 bool recovering = false;
398 struct fc_vport *fc_vport = NULL;
399 unsigned long iflags;
402 name = (uint8_t *)&ndlp->nlp_portname;
405 spin_lock_irqsave(&ndlp->lock, iflags);
406 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
407 spin_unlock_irqrestore(&ndlp->lock, iflags);
409 if (phba->sli_rev == LPFC_SLI_REV4)
410 fcf_inuse = lpfc_fcf_inuse(phba);
412 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
413 "rport devlosstmo:did:x%x type:x%x id:x%x",
414 ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid);
416 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
417 "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n",
418 __func__, ndlp->nlp_DID, ndlp->nlp_flag,
419 ndlp->fc4_xpt_flags, kref_read(&ndlp->kref));
421 /* If the driver is recovering the rport, ignore devloss. */
422 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
423 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
424 "0284 Devloss timeout Ignored on "
425 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
427 *name, *(name+1), *(name+2), *(name+3),
428 *(name+4), *(name+5), *(name+6), *(name+7),
433 /* Fabric nodes are done. */
434 if (ndlp->nlp_type & NLP_FABRIC) {
435 spin_lock_irqsave(&ndlp->lock, iflags);
436 /* In massive vport configuration settings, it's possible
437 * dev_loss_tmo fired during node recovery. So, check if
438 * fabric nodes are in discovery states outstanding.
440 switch (ndlp->nlp_DID) {
442 fc_vport = vport->fc_vport;
444 fc_vport->vport_state == FC_VPORT_INITIALIZING)
447 case Fabric_Cntl_DID:
448 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
454 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
455 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE)
459 spin_unlock_irqrestore(&ndlp->lock, iflags);
461 /* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing
462 * the following lpfc_nlp_put is necessary after fabric node is
466 lpfc_printf_vlog(vport, KERN_INFO,
467 LOG_DISCOVERY | LOG_NODE,
468 "8436 Devloss timeout marked on "
469 "DID x%x refcnt %d ndlp %p "
470 "flag x%x port_state = x%x\n",
471 ndlp->nlp_DID, kref_read(&ndlp->kref),
472 ndlp, ndlp->nlp_flag,
474 spin_lock_irqsave(&ndlp->lock, iflags);
475 ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS;
476 spin_unlock_irqrestore(&ndlp->lock, iflags);
477 } else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
478 /* Fabric node fully recovered before this dev_loss_tmo
479 * queue work is processed. Thus, ignore the
480 * dev_loss_tmo event.
482 lpfc_printf_vlog(vport, KERN_INFO,
483 LOG_DISCOVERY | LOG_NODE,
484 "8437 Devloss timeout ignored on "
485 "DID x%x refcnt %d ndlp %p "
486 "flag x%x port_state = x%x\n",
487 ndlp->nlp_DID, kref_read(&ndlp->kref),
488 ndlp, ndlp->nlp_flag,
497 if (ndlp->nlp_sid != NLP_NO_SID) {
499 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
503 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
504 "0203 Devloss timeout on "
505 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
506 "NPort x%06x Data: x%x x%x x%x\n",
507 *name, *(name+1), *(name+2), *(name+3),
508 *(name+4), *(name+5), *(name+6), *(name+7),
509 ndlp->nlp_DID, ndlp->nlp_flag,
510 ndlp->nlp_state, ndlp->nlp_rpi);
512 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT,
513 "0204 Devloss timeout on "
514 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
515 "NPort x%06x Data: x%x x%x x%x\n",
516 *name, *(name+1), *(name+2), *(name+3),
517 *(name+4), *(name+5), *(name+6), *(name+7),
518 ndlp->nlp_DID, ndlp->nlp_flag,
519 ndlp->nlp_state, ndlp->nlp_rpi);
522 /* If we are devloss, but we are in the process of rediscovering the
523 * ndlp, don't issue a NLP_EVT_DEVICE_RM event.
525 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
526 ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) {
530 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD))
531 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
536 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba)
538 struct lpfc_vport *vport;
539 struct lpfc_vport **vports;
542 vports = lpfc_create_vport_work_array(phba);
546 for (i = 0; i <= phba->max_vports; i++) {
547 if ((!vports[i]) && (i == 0))
554 if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) {
555 if (!lpfc_issue_els_qfpa(vport))
556 vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA;
559 lpfc_destroy_vport_work_array(phba, vports);
563 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
564 * @phba: Pointer to hba context object.
565 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
566 * @nlp_did: remote node identifer with devloss timeout.
568 * This function is called from the worker thread after invoking devloss
569 * timeout handler and releasing the reference count for the ndlp with
570 * which the devloss timeout was handled for SLI4 host. For the devloss
571 * timeout of the last remote node which had been in use of FCF, when this
572 * routine is invoked, it shall be guaranteed that none of the remote are
573 * in-use of FCF. When devloss timeout to the last remote using the FCF,
574 * if the FIP engine is neither in FCF table scan process nor roundrobin
575 * failover process, the in-use FCF shall be unregistered. If the FIP
576 * engine is in FCF discovery process, the devloss timeout state shall
577 * be set for either the FCF table scan process or roundrobin failover
578 * process to unregister the in-use FCF.
581 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
584 /* If devloss timeout happened to a remote node when FCF had no
585 * longer been in-use, do nothing.
590 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
591 spin_lock_irq(&phba->hbalock);
592 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
593 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
594 spin_unlock_irq(&phba->hbalock);
597 phba->hba_flag |= HBA_DEVLOSS_TMO;
598 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
599 "2847 Last remote node (x%x) using "
600 "FCF devloss tmo\n", nlp_did);
602 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
603 spin_unlock_irq(&phba->hbalock);
604 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
605 "2868 Devloss tmo to FCF rediscovery "
609 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
610 spin_unlock_irq(&phba->hbalock);
611 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
612 "2869 Devloss tmo to idle FIP engine, "
613 "unreg in-use FCF and rescan.\n");
614 /* Unregister in-use FCF and rescan */
615 lpfc_unregister_fcf_rescan(phba);
618 spin_unlock_irq(&phba->hbalock);
619 if (phba->hba_flag & FCF_TS_INPROG)
620 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
621 "2870 FCF table scan in progress\n");
622 if (phba->hba_flag & FCF_RR_INPROG)
623 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
624 "2871 FLOGI roundrobin FCF failover "
627 lpfc_unregister_unused_fcf(phba);
631 * lpfc_alloc_fast_evt - Allocates data structure for posting event
632 * @phba: Pointer to hba context object.
634 * This function is called from the functions which need to post
635 * events from interrupt context. This function allocates data
636 * structure required for posting event. It also keeps track of
637 * number of events pending and prevent event storm when there are
640 struct lpfc_fast_path_event *
641 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
642 struct lpfc_fast_path_event *ret;
644 /* If there are lot of fast event do not exhaust memory due to this */
645 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
648 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
651 atomic_inc(&phba->fast_event_count);
652 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
653 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
659 * lpfc_free_fast_evt - Frees event data structure
660 * @phba: Pointer to hba context object.
661 * @evt: Event object which need to be freed.
663 * This function frees the data structure required for posting
667 lpfc_free_fast_evt(struct lpfc_hba *phba,
668 struct lpfc_fast_path_event *evt) {
670 atomic_dec(&phba->fast_event_count);
675 * lpfc_send_fastpath_evt - Posts events generated from fast path
676 * @phba: Pointer to hba context object.
677 * @evtp: Event data structure.
679 * This function is called from worker thread, when the interrupt
680 * context need to post an event. This function posts the event
681 * to fc transport netlink interface.
684 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
685 struct lpfc_work_evt *evtp)
687 unsigned long evt_category, evt_sub_category;
688 struct lpfc_fast_path_event *fast_evt_data;
690 uint32_t evt_data_size;
691 struct Scsi_Host *shost;
693 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
696 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
697 evt_sub_category = (unsigned long) fast_evt_data->un.
698 fabric_evt.subcategory;
699 shost = lpfc_shost_from_vport(fast_evt_data->vport);
700 if (evt_category == FC_REG_FABRIC_EVENT) {
701 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
702 evt_data = (char *) &fast_evt_data->un.read_check_error;
703 evt_data_size = sizeof(fast_evt_data->un.
705 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
706 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
707 evt_data = (char *) &fast_evt_data->un.fabric_evt;
708 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
710 lpfc_free_fast_evt(phba, fast_evt_data);
713 } else if (evt_category == FC_REG_SCSI_EVENT) {
714 switch (evt_sub_category) {
715 case LPFC_EVENT_QFULL:
716 case LPFC_EVENT_DEVBSY:
717 evt_data = (char *) &fast_evt_data->un.scsi_evt;
718 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
720 case LPFC_EVENT_CHECK_COND:
721 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
722 evt_data_size = sizeof(fast_evt_data->un.
725 case LPFC_EVENT_VARQUEDEPTH:
726 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
727 evt_data_size = sizeof(fast_evt_data->un.
731 lpfc_free_fast_evt(phba, fast_evt_data);
735 lpfc_free_fast_evt(phba, fast_evt_data);
739 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
740 fc_host_post_vendor_event(shost,
741 fc_get_event_number(),
746 lpfc_free_fast_evt(phba, fast_evt_data);
751 lpfc_work_list_done(struct lpfc_hba *phba)
753 struct lpfc_work_evt *evtp = NULL;
754 struct lpfc_nodelist *ndlp;
759 spin_lock_irq(&phba->hbalock);
760 while (!list_empty(&phba->work_list)) {
761 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
763 spin_unlock_irq(&phba->hbalock);
766 case LPFC_EVT_ELS_RETRY:
767 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
768 lpfc_els_retry_delay_handler(ndlp);
769 free_evt = 0; /* evt is part of ndlp */
770 /* decrement the node reference count held
771 * for this queued work
775 case LPFC_EVT_DEV_LOSS:
776 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
777 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
779 /* decrement the node reference count held for
782 nlp_did = ndlp->nlp_DID;
784 if (phba->sli_rev == LPFC_SLI_REV4)
785 lpfc_sli4_post_dev_loss_tmo_handler(phba,
789 case LPFC_EVT_RECOVER_PORT:
790 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
791 lpfc_sli_abts_recover_port(ndlp->vport, ndlp);
793 /* decrement the node reference count held for
798 case LPFC_EVT_ONLINE:
799 if (phba->link_state < LPFC_LINK_DOWN)
800 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
802 *(int *) (evtp->evt_arg1) = 0;
803 complete((struct completion *)(evtp->evt_arg2));
805 case LPFC_EVT_OFFLINE_PREP:
806 if (phba->link_state >= LPFC_LINK_DOWN)
807 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
808 *(int *)(evtp->evt_arg1) = 0;
809 complete((struct completion *)(evtp->evt_arg2));
811 case LPFC_EVT_OFFLINE:
813 lpfc_sli_brdrestart(phba);
814 *(int *)(evtp->evt_arg1) =
815 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
816 lpfc_unblock_mgmt_io(phba);
817 complete((struct completion *)(evtp->evt_arg2));
819 case LPFC_EVT_WARM_START:
821 lpfc_reset_barrier(phba);
822 lpfc_sli_brdreset(phba);
823 lpfc_hba_down_post(phba);
824 *(int *)(evtp->evt_arg1) =
825 lpfc_sli_brdready(phba, HS_MBRDY);
826 lpfc_unblock_mgmt_io(phba);
827 complete((struct completion *)(evtp->evt_arg2));
831 *(int *)(evtp->evt_arg1)
832 = (phba->pport->stopped)
833 ? 0 : lpfc_sli_brdkill(phba);
834 lpfc_unblock_mgmt_io(phba);
835 complete((struct completion *)(evtp->evt_arg2));
837 case LPFC_EVT_FASTPATH_MGMT_EVT:
838 lpfc_send_fastpath_evt(phba, evtp);
841 case LPFC_EVT_RESET_HBA:
842 if (!(phba->pport->load_flag & FC_UNLOADING))
843 lpfc_reset_hba(phba);
848 spin_lock_irq(&phba->hbalock);
850 spin_unlock_irq(&phba->hbalock);
855 lpfc_work_done(struct lpfc_hba *phba)
857 struct lpfc_sli_ring *pring;
858 uint32_t ha_copy, status, control, work_port_events;
859 struct lpfc_vport **vports;
860 struct lpfc_vport *vport;
863 spin_lock_irq(&phba->hbalock);
864 ha_copy = phba->work_ha;
866 spin_unlock_irq(&phba->hbalock);
868 /* First, try to post the next mailbox command to SLI4 device */
869 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
870 lpfc_sli4_post_async_mbox(phba);
872 if (ha_copy & HA_ERATT) {
873 /* Handle the error attention event */
874 lpfc_handle_eratt(phba);
876 if (phba->fw_dump_cmpl) {
877 complete(phba->fw_dump_cmpl);
878 phba->fw_dump_cmpl = NULL;
882 if (ha_copy & HA_MBATT)
883 lpfc_sli_handle_mb_event(phba);
885 if (ha_copy & HA_LATT)
886 lpfc_handle_latt(phba);
888 /* Handle VMID Events */
889 if (lpfc_is_vmid_enabled(phba)) {
890 if (phba->pport->work_port_events &
891 WORKER_CHECK_VMID_ISSUE_QFPA) {
892 lpfc_check_vmid_qfpa_issue(phba);
893 phba->pport->work_port_events &=
894 ~WORKER_CHECK_VMID_ISSUE_QFPA;
896 if (phba->pport->work_port_events &
897 WORKER_CHECK_INACTIVE_VMID) {
898 lpfc_check_inactive_vmid(phba);
899 phba->pport->work_port_events &=
900 ~WORKER_CHECK_INACTIVE_VMID;
904 /* Process SLI4 events */
905 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
906 if (phba->hba_flag & HBA_RRQ_ACTIVE)
907 lpfc_handle_rrq_active(phba);
908 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
909 lpfc_sli4_els_xri_abort_event_proc(phba);
910 if (phba->hba_flag & ASYNC_EVENT)
911 lpfc_sli4_async_event_proc(phba);
912 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
913 spin_lock_irq(&phba->hbalock);
914 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
915 spin_unlock_irq(&phba->hbalock);
916 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
918 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
919 lpfc_sli4_fcf_redisc_event_proc(phba);
922 vports = lpfc_create_vport_work_array(phba);
924 for (i = 0; i <= phba->max_vports; i++) {
926 * We could have no vports in array if unloading, so if
927 * this happens then just use the pport
929 if (vports[i] == NULL && i == 0)
935 spin_lock_irq(&vport->work_port_lock);
936 work_port_events = vport->work_port_events;
937 vport->work_port_events &= ~work_port_events;
938 spin_unlock_irq(&vport->work_port_lock);
939 if (work_port_events & WORKER_DISC_TMO)
940 lpfc_disc_timeout_handler(vport);
941 if (work_port_events & WORKER_ELS_TMO)
942 lpfc_els_timeout_handler(vport);
943 if (work_port_events & WORKER_HB_TMO)
944 lpfc_hb_timeout_handler(phba);
945 if (work_port_events & WORKER_MBOX_TMO)
946 lpfc_mbox_timeout_handler(phba);
947 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
948 lpfc_unblock_fabric_iocbs(phba);
949 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
950 lpfc_ramp_down_queue_handler(phba);
951 if (work_port_events & WORKER_DELAYED_DISC_TMO)
952 lpfc_delayed_disc_timeout_handler(vport);
954 lpfc_destroy_vport_work_array(phba, vports);
956 pring = lpfc_phba_elsring(phba);
957 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
958 status >>= (4*LPFC_ELS_RING);
959 if (pring && (status & HA_RXMASK ||
960 pring->flag & LPFC_DEFERRED_RING_EVENT ||
961 phba->hba_flag & HBA_SP_QUEUE_EVT)) {
962 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
963 pring->flag |= LPFC_DEFERRED_RING_EVENT;
964 /* Preserve legacy behavior. */
965 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
966 set_bit(LPFC_DATA_READY, &phba->data_flags);
968 /* Driver could have abort request completed in queue
969 * when link goes down. Allow for this transition.
971 if (phba->link_state >= LPFC_LINK_DOWN ||
972 phba->link_flag & LS_MDS_LOOPBACK) {
973 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
974 lpfc_sli_handle_slow_ring_event(phba, pring,
979 if (phba->sli_rev == LPFC_SLI_REV4)
980 lpfc_drain_txq(phba);
982 * Turn on Ring interrupts
984 if (phba->sli_rev <= LPFC_SLI_REV3) {
985 spin_lock_irq(&phba->hbalock);
986 control = readl(phba->HCregaddr);
987 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
988 lpfc_debugfs_slow_ring_trc(phba,
989 "WRK Enable ring: cntl:x%x hacopy:x%x",
990 control, ha_copy, 0);
992 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
993 writel(control, phba->HCregaddr);
994 readl(phba->HCregaddr); /* flush */
996 lpfc_debugfs_slow_ring_trc(phba,
997 "WRK Ring ok: cntl:x%x hacopy:x%x",
998 control, ha_copy, 0);
1000 spin_unlock_irq(&phba->hbalock);
1003 lpfc_work_list_done(phba);
1007 lpfc_do_work(void *p)
1009 struct lpfc_hba *phba = p;
1012 set_user_nice(current, MIN_NICE);
1013 current->flags |= PF_NOFREEZE;
1014 phba->data_flags = 0;
1016 while (!kthread_should_stop()) {
1017 /* wait and check worker queue activities */
1018 rc = wait_event_interruptible(phba->work_waitq,
1019 (test_and_clear_bit(LPFC_DATA_READY,
1021 || kthread_should_stop()));
1022 /* Signal wakeup shall terminate the worker thread */
1024 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1025 "0433 Wakeup on signal: rc=x%x\n", rc);
1029 /* Attend pending lpfc data processing */
1030 lpfc_work_done(phba);
1032 phba->worker_thread = NULL;
1033 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1034 "0432 Worker thread stopped.\n");
1039 * This is only called to handle FC worker events. Since this a rare
1040 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
1041 * embedding it in the IOCB.
1044 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
1047 struct lpfc_work_evt *evtp;
1048 unsigned long flags;
1051 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
1052 * be queued to worker thread for processing
1054 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
1058 evtp->evt_arg1 = arg1;
1059 evtp->evt_arg2 = arg2;
1062 spin_lock_irqsave(&phba->hbalock, flags);
1063 list_add_tail(&evtp->evt_listp, &phba->work_list);
1064 spin_unlock_irqrestore(&phba->hbalock, flags);
1066 lpfc_worker_wake_up(phba);
1072 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
1074 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1075 struct lpfc_hba *phba = vport->phba;
1076 struct lpfc_nodelist *ndlp, *next_ndlp;
1078 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1079 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
1080 /* It's possible the FLOGI to the fabric node never
1081 * successfully completed and never registered with the
1082 * transport. In this case there is no way to clean up
1085 if (ndlp->nlp_DID == Fabric_DID) {
1086 if (ndlp->nlp_prev_state ==
1087 NLP_STE_UNUSED_NODE &&
1088 !ndlp->fc4_xpt_flags)
1094 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
1095 ((vport->port_type == LPFC_NPIV_PORT) &&
1096 ((ndlp->nlp_DID == NameServer_DID) ||
1097 (ndlp->nlp_DID == FDMI_DID) ||
1098 (ndlp->nlp_DID == Fabric_Cntl_DID))))
1099 lpfc_unreg_rpi(vport, ndlp);
1101 /* Leave Fabric nodes alone on link down */
1102 if ((phba->sli_rev < LPFC_SLI_REV4) &&
1103 (!remove && ndlp->nlp_type & NLP_FABRIC))
1106 /* Notify transport of connectivity loss to trigger cleanup. */
1107 if (phba->nvmet_support &&
1108 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
1109 lpfc_nvmet_invalidate_host(phba, ndlp);
1111 lpfc_disc_state_machine(vport, ndlp, NULL,
1114 : NLP_EVT_DEVICE_RECOVERY);
1116 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
1117 if (phba->sli_rev == LPFC_SLI_REV4)
1118 lpfc_sli4_unreg_all_rpis(vport);
1119 lpfc_mbx_unreg_vpi(vport);
1120 spin_lock_irq(shost->host_lock);
1121 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1122 spin_unlock_irq(shost->host_lock);
1127 lpfc_port_link_failure(struct lpfc_vport *vport)
1129 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
1131 /* Cleanup any outstanding received buffers */
1132 lpfc_cleanup_rcv_buffers(vport);
1134 /* Cleanup any outstanding RSCN activity */
1135 lpfc_els_flush_rscn(vport);
1137 /* Cleanup any outstanding ELS commands */
1138 lpfc_els_flush_cmd(vport);
1140 lpfc_cleanup_rpis(vport, 0);
1142 /* Turn off discovery timer if its running */
1143 lpfc_can_disctmo(vport);
1147 lpfc_linkdown_port(struct lpfc_vport *vport)
1149 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1151 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1152 fc_host_post_event(shost, fc_get_event_number(),
1153 FCH_EVT_LINKDOWN, 0);
1155 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1156 "Link Down: state:x%x rtry:x%x flg:x%x",
1157 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1159 lpfc_port_link_failure(vport);
1161 /* Stop delayed Nport discovery */
1162 spin_lock_irq(shost->host_lock);
1163 vport->fc_flag &= ~FC_DISC_DELAYED;
1164 spin_unlock_irq(shost->host_lock);
1165 del_timer_sync(&vport->delayed_disc_tmo);
1169 lpfc_linkdown(struct lpfc_hba *phba)
1171 struct lpfc_vport *vport = phba->pport;
1172 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1173 struct lpfc_vport **vports;
1177 if (phba->link_state == LPFC_LINK_DOWN)
1180 /* Block all SCSI stack I/Os */
1181 lpfc_scsi_dev_block(phba);
1183 phba->defer_flogi_acc_flag = false;
1185 spin_lock_irq(&phba->hbalock);
1186 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1187 spin_unlock_irq(&phba->hbalock);
1188 if (phba->link_state > LPFC_LINK_DOWN) {
1189 phba->link_state = LPFC_LINK_DOWN;
1190 if (phba->sli4_hba.conf_trunk) {
1191 phba->trunk_link.link0.state = 0;
1192 phba->trunk_link.link1.state = 0;
1193 phba->trunk_link.link2.state = 0;
1194 phba->trunk_link.link3.state = 0;
1195 phba->sli4_hba.link_state.logical_speed =
1196 LPFC_LINK_SPEED_UNKNOWN;
1198 spin_lock_irq(shost->host_lock);
1199 phba->pport->fc_flag &= ~FC_LBIT;
1200 spin_unlock_irq(shost->host_lock);
1202 vports = lpfc_create_vport_work_array(phba);
1203 if (vports != NULL) {
1204 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1205 /* Issue a LINK DOWN event to all nodes */
1206 lpfc_linkdown_port(vports[i]);
1208 vports[i]->fc_myDID = 0;
1210 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
1211 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
1212 if (phba->nvmet_support)
1213 lpfc_nvmet_update_targetport(phba);
1215 lpfc_nvme_update_localport(vports[i]);
1219 lpfc_destroy_vport_work_array(phba, vports);
1221 /* Clean up any SLI3 firmware default rpi's */
1222 if (phba->sli_rev > LPFC_SLI_REV3)
1223 goto skip_unreg_did;
1225 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1227 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
1229 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1230 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
1231 == MBX_NOT_FINISHED) {
1232 mempool_free(mb, phba->mbox_mem_pool);
1237 /* Setup myDID for link up if we are in pt2pt mode */
1238 if (phba->pport->fc_flag & FC_PT2PT) {
1239 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1241 lpfc_config_link(phba, mb);
1242 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1244 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
1245 == MBX_NOT_FINISHED) {
1246 mempool_free(mb, phba->mbox_mem_pool);
1249 spin_lock_irq(shost->host_lock);
1250 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
1251 phba->pport->rcv_flogi_cnt = 0;
1252 spin_unlock_irq(shost->host_lock);
1258 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
1260 struct lpfc_nodelist *ndlp;
1262 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
1263 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
1265 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1267 if (ndlp->nlp_type & NLP_FABRIC) {
1268 /* On Linkup its safe to clean up the ndlp
1269 * from Fabric connections.
1271 if (ndlp->nlp_DID != Fabric_DID)
1272 lpfc_unreg_rpi(vport, ndlp);
1273 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1274 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
1275 /* Fail outstanding IO now since device is
1278 lpfc_unreg_rpi(vport, ndlp);
1284 lpfc_linkup_port(struct lpfc_vport *vport)
1286 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1287 struct lpfc_hba *phba = vport->phba;
1289 if ((vport->load_flag & FC_UNLOADING) != 0)
1292 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1293 "Link Up: top:x%x speed:x%x flg:x%x",
1294 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
1296 /* If NPIV is not enabled, only bring the physical port up */
1297 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1298 (vport != phba->pport))
1301 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1302 fc_host_post_event(shost, fc_get_event_number(),
1305 spin_lock_irq(shost->host_lock);
1306 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
1307 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
1308 vport->fc_flag |= FC_NDISC_ACTIVE;
1309 vport->fc_ns_retry = 0;
1310 spin_unlock_irq(shost->host_lock);
1312 lpfc_linkup_cleanup_nodes(vport);
1316 lpfc_linkup(struct lpfc_hba *phba)
1318 struct lpfc_vport **vports;
1320 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
1322 phba->link_state = LPFC_LINK_UP;
1324 /* Unblock fabric iocbs if they are blocked */
1325 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1326 del_timer_sync(&phba->fabric_block_timer);
1328 vports = lpfc_create_vport_work_array(phba);
1330 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1331 lpfc_linkup_port(vports[i]);
1332 lpfc_destroy_vport_work_array(phba, vports);
1334 /* Clear the pport flogi counter in case the link down was
1335 * absorbed without an ACQE. No lock here - in worker thread
1336 * and discovery is synchronized.
1338 spin_lock_irq(shost->host_lock);
1339 phba->pport->rcv_flogi_cnt = 0;
1340 spin_unlock_irq(shost->host_lock);
1342 /* reinitialize initial FLOGI flag */
1343 phba->hba_flag &= ~(HBA_FLOGI_ISSUED);
1344 phba->defer_flogi_acc_flag = false;
1350 * This routine handles processing a CLEAR_LA mailbox
1351 * command upon completion. It is setup in the LPFC_MBOXQ
1352 * as the completion routine when the command is
1353 * handed off to the SLI layer. SLI3 only.
1356 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1358 struct lpfc_vport *vport = pmb->vport;
1359 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1360 struct lpfc_sli *psli = &phba->sli;
1361 MAILBOX_t *mb = &pmb->u.mb;
1364 /* Since we don't do discovery right now, turn these off here */
1365 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1366 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1368 /* Check for error */
1369 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1370 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1371 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1372 "0320 CLEAR_LA mbxStatus error x%x hba "
1374 mb->mbxStatus, vport->port_state);
1375 phba->link_state = LPFC_HBA_ERROR;
1379 if (vport->port_type == LPFC_PHYSICAL_PORT)
1380 phba->link_state = LPFC_HBA_READY;
1382 spin_lock_irq(&phba->hbalock);
1383 psli->sli_flag |= LPFC_PROCESS_LA;
1384 control = readl(phba->HCregaddr);
1385 control |= HC_LAINT_ENA;
1386 writel(control, phba->HCregaddr);
1387 readl(phba->HCregaddr); /* flush */
1388 spin_unlock_irq(&phba->hbalock);
1389 mempool_free(pmb, phba->mbox_mem_pool);
1393 /* Device Discovery completes */
1394 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1395 "0225 Device Discovery completes\n");
1396 mempool_free(pmb, phba->mbox_mem_pool);
1398 spin_lock_irq(shost->host_lock);
1399 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1400 spin_unlock_irq(shost->host_lock);
1402 lpfc_can_disctmo(vport);
1404 /* turn on Link Attention interrupts */
1406 spin_lock_irq(&phba->hbalock);
1407 psli->sli_flag |= LPFC_PROCESS_LA;
1408 control = readl(phba->HCregaddr);
1409 control |= HC_LAINT_ENA;
1410 writel(control, phba->HCregaddr);
1411 readl(phba->HCregaddr); /* flush */
1412 spin_unlock_irq(&phba->hbalock);
1418 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1420 struct lpfc_vport *vport = pmb->vport;
1421 LPFC_MBOXQ_t *sparam_mb;
1422 struct lpfc_dmabuf *sparam_mp;
1423 u16 status = pmb->u.mb.mbxStatus;
1426 mempool_free(pmb, phba->mbox_mem_pool);
1431 /* don't perform discovery for SLI4 loopback diagnostic test */
1432 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1433 !(phba->hba_flag & HBA_FCOE_MODE) &&
1434 (phba->link_flag & LS_LOOPBACK_MODE))
1437 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1438 vport->fc_flag & FC_PUBLIC_LOOP &&
1439 !(vport->fc_flag & FC_LBIT)) {
1440 /* Need to wait for FAN - use discovery timer
1441 * for timeout. port_state is identically
1442 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1444 lpfc_set_disctmo(vport);
1448 /* Start discovery by sending a FLOGI. port_state is identically
1449 * LPFC_FLOGI while waiting for FLOGI cmpl.
1451 if (vport->port_state != LPFC_FLOGI) {
1452 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if
1453 * bb-credit recovery is in place.
1455 if (phba->bbcredit_support && phba->cfg_enable_bbcr &&
1456 !(phba->link_flag & LS_LOOPBACK_MODE)) {
1457 sparam_mb = mempool_alloc(phba->mbox_mem_pool,
1462 rc = lpfc_read_sparam(phba, sparam_mb, 0);
1464 mempool_free(sparam_mb, phba->mbox_mem_pool);
1467 sparam_mb->vport = vport;
1468 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
1469 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT);
1470 if (rc == MBX_NOT_FINISHED) {
1471 sparam_mp = (struct lpfc_dmabuf *)
1473 lpfc_mbuf_free(phba, sparam_mp->virt,
1476 sparam_mb->ctx_buf = NULL;
1477 mempool_free(sparam_mb, phba->mbox_mem_pool);
1481 phba->hba_flag |= HBA_DEFER_FLOGI;
1483 lpfc_initial_flogi(vport);
1486 if (vport->fc_flag & FC_PT2PT)
1487 lpfc_disc_start(vport);
1492 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1493 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n",
1494 status, vport->port_state);
1497 lpfc_linkdown(phba);
1499 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1500 "0200 CONFIG_LINK bad hba state x%x\n",
1503 lpfc_issue_clear_la(phba, vport);
1508 * lpfc_sli4_clear_fcf_rr_bmask
1509 * @phba: pointer to the struct lpfc_hba for this port.
1510 * This fucnction resets the round robin bit mask and clears the
1511 * fcf priority list. The list deletions are done while holding the
1512 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1513 * from the lpfc_fcf_pri record.
1516 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1518 struct lpfc_fcf_pri *fcf_pri;
1519 struct lpfc_fcf_pri *next_fcf_pri;
1520 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1521 spin_lock_irq(&phba->hbalock);
1522 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1523 &phba->fcf.fcf_pri_list, list) {
1524 list_del_init(&fcf_pri->list);
1525 fcf_pri->fcf_rec.flag = 0;
1527 spin_unlock_irq(&phba->hbalock);
1530 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1532 struct lpfc_vport *vport = mboxq->vport;
1534 if (mboxq->u.mb.mbxStatus) {
1535 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1536 "2017 REG_FCFI mbxStatus error x%x "
1537 "HBA state x%x\n", mboxq->u.mb.mbxStatus,
1542 /* Start FCoE discovery by sending a FLOGI. */
1543 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1544 /* Set the FCFI registered flag */
1545 spin_lock_irq(&phba->hbalock);
1546 phba->fcf.fcf_flag |= FCF_REGISTERED;
1547 spin_unlock_irq(&phba->hbalock);
1549 /* If there is a pending FCoE event, restart FCF table scan. */
1550 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1551 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1554 /* Mark successful completion of FCF table scan */
1555 spin_lock_irq(&phba->hbalock);
1556 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1557 phba->hba_flag &= ~FCF_TS_INPROG;
1558 if (vport->port_state != LPFC_FLOGI) {
1559 phba->hba_flag |= FCF_RR_INPROG;
1560 spin_unlock_irq(&phba->hbalock);
1561 lpfc_issue_init_vfi(vport);
1564 spin_unlock_irq(&phba->hbalock);
1568 spin_lock_irq(&phba->hbalock);
1569 phba->hba_flag &= ~FCF_RR_INPROG;
1570 spin_unlock_irq(&phba->hbalock);
1572 mempool_free(mboxq, phba->mbox_mem_pool);
1576 * lpfc_fab_name_match - Check if the fcf fabric name match.
1577 * @fab_name: pointer to fabric name.
1578 * @new_fcf_record: pointer to fcf record.
1580 * This routine compare the fcf record's fabric name with provided
1581 * fabric name. If the fabric name are identical this function
1582 * returns 1 else return 0.
1585 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1587 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1589 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1591 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1593 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1595 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1597 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1599 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1601 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1607 * lpfc_sw_name_match - Check if the fcf switch name match.
1608 * @sw_name: pointer to switch name.
1609 * @new_fcf_record: pointer to fcf record.
1611 * This routine compare the fcf record's switch name with provided
1612 * switch name. If the switch name are identical this function
1613 * returns 1 else return 0.
1616 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1618 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1620 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1622 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1624 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1626 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1628 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1630 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1632 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1638 * lpfc_mac_addr_match - Check if the fcf mac address match.
1639 * @mac_addr: pointer to mac address.
1640 * @new_fcf_record: pointer to fcf record.
1642 * This routine compare the fcf record's mac address with HBA's
1643 * FCF mac address. If the mac addresses are identical this function
1644 * returns 1 else return 0.
1647 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1649 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1651 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1653 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1655 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1657 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1659 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1665 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1667 return (curr_vlan_id == new_vlan_id);
1671 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1672 * @phba: pointer to lpfc hba data structure.
1673 * @fcf_index: Index for the lpfc_fcf_record.
1674 * @new_fcf_record: pointer to hba fcf record.
1676 * This routine updates the driver FCF priority record from the new HBA FCF
1677 * record. The hbalock is asserted held in the code path calling this
1681 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1682 struct fcf_record *new_fcf_record
1685 struct lpfc_fcf_pri *fcf_pri;
1687 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1688 fcf_pri->fcf_rec.fcf_index = fcf_index;
1689 /* FCF record priority */
1690 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1695 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1696 * @fcf_rec: pointer to driver fcf record.
1697 * @new_fcf_record: pointer to fcf record.
1699 * This routine copies the FCF information from the FCF
1700 * record to lpfc_hba data structure.
1703 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1704 struct fcf_record *new_fcf_record)
1707 fcf_rec->fabric_name[0] =
1708 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1709 fcf_rec->fabric_name[1] =
1710 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1711 fcf_rec->fabric_name[2] =
1712 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1713 fcf_rec->fabric_name[3] =
1714 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1715 fcf_rec->fabric_name[4] =
1716 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1717 fcf_rec->fabric_name[5] =
1718 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1719 fcf_rec->fabric_name[6] =
1720 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1721 fcf_rec->fabric_name[7] =
1722 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1724 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1725 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1726 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1727 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1728 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1729 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1730 /* FCF record index */
1731 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1732 /* FCF record priority */
1733 fcf_rec->priority = new_fcf_record->fip_priority;
1735 fcf_rec->switch_name[0] =
1736 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1737 fcf_rec->switch_name[1] =
1738 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1739 fcf_rec->switch_name[2] =
1740 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1741 fcf_rec->switch_name[3] =
1742 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1743 fcf_rec->switch_name[4] =
1744 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1745 fcf_rec->switch_name[5] =
1746 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1747 fcf_rec->switch_name[6] =
1748 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1749 fcf_rec->switch_name[7] =
1750 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1754 * __lpfc_update_fcf_record - Update driver fcf record
1755 * @phba: pointer to lpfc hba data structure.
1756 * @fcf_rec: pointer to driver fcf record.
1757 * @new_fcf_record: pointer to hba fcf record.
1758 * @addr_mode: address mode to be set to the driver fcf record.
1759 * @vlan_id: vlan tag to be set to the driver fcf record.
1760 * @flag: flag bits to be set to the driver fcf record.
1762 * This routine updates the driver FCF record from the new HBA FCF record
1763 * together with the address mode, vlan_id, and other informations. This
1764 * routine is called with the hbalock held.
1767 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1768 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1769 uint16_t vlan_id, uint32_t flag)
1771 lockdep_assert_held(&phba->hbalock);
1773 /* Copy the fields from the HBA's FCF record */
1774 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1775 /* Update other fields of driver FCF record */
1776 fcf_rec->addr_mode = addr_mode;
1777 fcf_rec->vlan_id = vlan_id;
1778 fcf_rec->flag |= (flag | RECORD_VALID);
1779 __lpfc_update_fcf_record_pri(phba,
1780 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1785 * lpfc_register_fcf - Register the FCF with hba.
1786 * @phba: pointer to lpfc hba data structure.
1788 * This routine issues a register fcfi mailbox command to register
1792 lpfc_register_fcf(struct lpfc_hba *phba)
1794 LPFC_MBOXQ_t *fcf_mbxq;
1797 spin_lock_irq(&phba->hbalock);
1798 /* If the FCF is not available do nothing. */
1799 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1800 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1801 spin_unlock_irq(&phba->hbalock);
1805 /* The FCF is already registered, start discovery */
1806 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1807 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1808 phba->hba_flag &= ~FCF_TS_INPROG;
1809 if (phba->pport->port_state != LPFC_FLOGI &&
1810 phba->pport->fc_flag & FC_FABRIC) {
1811 phba->hba_flag |= FCF_RR_INPROG;
1812 spin_unlock_irq(&phba->hbalock);
1813 lpfc_initial_flogi(phba->pport);
1816 spin_unlock_irq(&phba->hbalock);
1819 spin_unlock_irq(&phba->hbalock);
1821 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1823 spin_lock_irq(&phba->hbalock);
1824 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1825 spin_unlock_irq(&phba->hbalock);
1829 lpfc_reg_fcfi(phba, fcf_mbxq);
1830 fcf_mbxq->vport = phba->pport;
1831 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1832 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1833 if (rc == MBX_NOT_FINISHED) {
1834 spin_lock_irq(&phba->hbalock);
1835 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1836 spin_unlock_irq(&phba->hbalock);
1837 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1844 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1845 * @phba: pointer to lpfc hba data structure.
1846 * @new_fcf_record: pointer to fcf record.
1847 * @boot_flag: Indicates if this record used by boot bios.
1848 * @addr_mode: The address mode to be used by this FCF
1849 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1851 * This routine compare the fcf record with connect list obtained from the
1852 * config region to decide if this FCF can be used for SAN discovery. It returns
1853 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1854 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1855 * is used by boot bios and addr_mode will indicate the addressing mode to be
1856 * used for this FCF when the function returns.
1857 * If the FCF record need to be used with a particular vlan id, the vlan is
1858 * set in the vlan_id on return of the function. If not VLAN tagging need to
1859 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1862 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1863 struct fcf_record *new_fcf_record,
1864 uint32_t *boot_flag, uint32_t *addr_mode,
1867 struct lpfc_fcf_conn_entry *conn_entry;
1868 int i, j, fcf_vlan_id = 0;
1870 /* Find the lowest VLAN id in the FCF record */
1871 for (i = 0; i < 512; i++) {
1872 if (new_fcf_record->vlan_bitmap[i]) {
1873 fcf_vlan_id = i * 8;
1875 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1883 /* FCF not valid/available or solicitation in progress */
1884 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1885 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1886 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1889 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1891 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1893 if (phba->valid_vlan)
1894 *vlan_id = phba->vlan_id;
1896 *vlan_id = LPFC_FCOE_NULL_VID;
1901 * If there are no FCF connection table entry, driver connect to all
1904 if (list_empty(&phba->fcf_conn_rec_list)) {
1906 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1910 * When there are no FCF connect entries, use driver's default
1911 * addressing mode - FPMA.
1913 if (*addr_mode & LPFC_FCF_FPMA)
1914 *addr_mode = LPFC_FCF_FPMA;
1916 /* If FCF record report a vlan id use that vlan id */
1918 *vlan_id = fcf_vlan_id;
1920 *vlan_id = LPFC_FCOE_NULL_VID;
1924 list_for_each_entry(conn_entry,
1925 &phba->fcf_conn_rec_list, list) {
1926 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1929 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1930 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1933 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1934 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1937 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1939 * If the vlan bit map does not have the bit set for the
1940 * vlan id to be used, then it is not a match.
1942 if (!(new_fcf_record->vlan_bitmap
1943 [conn_entry->conn_rec.vlan_tag / 8] &
1944 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1949 * If connection record does not support any addressing mode,
1950 * skip the FCF record.
1952 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1953 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1957 * Check if the connection record specifies a required
1960 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1961 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1964 * If SPMA required but FCF not support this continue.
1966 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1967 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1968 new_fcf_record) & LPFC_FCF_SPMA))
1972 * If FPMA required but FCF not support this continue.
1974 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1975 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1976 new_fcf_record) & LPFC_FCF_FPMA))
1981 * This fcf record matches filtering criteria.
1983 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1989 * If user did not specify any addressing mode, or if the
1990 * preferred addressing mode specified by user is not supported
1991 * by FCF, allow fabric to pick the addressing mode.
1993 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1996 * If the user specified a required address mode, assign that
1999 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
2000 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
2001 *addr_mode = (conn_entry->conn_rec.flags &
2003 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
2005 * If the user specified a preferred address mode, use the
2006 * addr mode only if FCF support the addr_mode.
2008 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
2009 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
2010 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
2011 (*addr_mode & LPFC_FCF_SPMA))
2012 *addr_mode = LPFC_FCF_SPMA;
2013 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
2014 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
2015 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
2016 (*addr_mode & LPFC_FCF_FPMA))
2017 *addr_mode = LPFC_FCF_FPMA;
2019 /* If matching connect list has a vlan id, use it */
2020 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
2021 *vlan_id = conn_entry->conn_rec.vlan_tag;
2023 * If no vlan id is specified in connect list, use the vlan id
2026 else if (fcf_vlan_id)
2027 *vlan_id = fcf_vlan_id;
2029 *vlan_id = LPFC_FCOE_NULL_VID;
2038 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
2039 * @phba: pointer to lpfc hba data structure.
2040 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
2042 * This function check if there is any fcoe event pending while driver
2043 * scan FCF entries. If there is any pending event, it will restart the
2044 * FCF saning and return 1 else return 0.
2047 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
2050 * If the Link is up and no FCoE events while in the
2051 * FCF discovery, no need to restart FCF discovery.
2053 if ((phba->link_state >= LPFC_LINK_UP) &&
2054 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
2057 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2058 "2768 Pending link or FCF event during current "
2059 "handling of the previous event: link_state:x%x, "
2060 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
2061 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
2062 phba->fcoe_eventtag);
2064 spin_lock_irq(&phba->hbalock);
2065 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
2066 spin_unlock_irq(&phba->hbalock);
2068 if (phba->link_state >= LPFC_LINK_UP) {
2069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
2070 "2780 Restart FCF table scan due to "
2071 "pending FCF event:evt_tag_at_scan:x%x, "
2072 "evt_tag_current:x%x\n",
2073 phba->fcoe_eventtag_at_fcf_scan,
2074 phba->fcoe_eventtag);
2075 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
2078 * Do not continue FCF discovery and clear FCF_TS_INPROG
2081 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
2082 "2833 Stop FCF discovery process due to link "
2083 "state change (x%x)\n", phba->link_state);
2084 spin_lock_irq(&phba->hbalock);
2085 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
2086 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
2087 spin_unlock_irq(&phba->hbalock);
2090 /* Unregister the currently registered FCF if required */
2092 spin_lock_irq(&phba->hbalock);
2093 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
2094 spin_unlock_irq(&phba->hbalock);
2095 lpfc_sli4_unregister_fcf(phba);
2101 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
2102 * @phba: pointer to lpfc hba data structure.
2103 * @fcf_cnt: number of eligible fcf record seen so far.
2105 * This function makes an running random selection decision on FCF record to
2106 * use through a sequence of @fcf_cnt eligible FCF records with equal
2107 * probability. To perform integer manunipulation of random numbers with
2108 * size unit32_t, the lower 16 bits of the 32-bit random number returned
2109 * from prandom_u32() are taken as the random random number generated.
2111 * Returns true when outcome is for the newly read FCF record should be
2112 * chosen; otherwise, return false when outcome is for keeping the previously
2113 * chosen FCF record.
2116 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
2120 /* Get 16-bit uniform random number */
2121 rand_num = 0xFFFF & prandom_u32();
2123 /* Decision with probability 1/fcf_cnt */
2124 if ((fcf_cnt * rand_num) < 0xFFFF)
2131 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
2132 * @phba: pointer to lpfc hba data structure.
2133 * @mboxq: pointer to mailbox object.
2134 * @next_fcf_index: pointer to holder of next fcf index.
2136 * This routine parses the non-embedded fcf mailbox command by performing the
2137 * necessarily error checking, non-embedded read FCF record mailbox command
2138 * SGE parsing, and endianness swapping.
2140 * Returns the pointer to the new FCF record in the non-embedded mailbox
2141 * command DMA memory if successfully, other NULL.
2143 static struct fcf_record *
2144 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
2145 uint16_t *next_fcf_index)
2148 struct lpfc_mbx_sge sge;
2149 struct lpfc_mbx_read_fcf_tbl *read_fcf;
2150 uint32_t shdr_status, shdr_add_status, if_type;
2151 union lpfc_sli4_cfg_shdr *shdr;
2152 struct fcf_record *new_fcf_record;
2154 /* Get the first SGE entry from the non-embedded DMA memory. This
2155 * routine only uses a single SGE.
2157 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
2158 if (unlikely(!mboxq->sge_array)) {
2159 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2160 "2524 Failed to get the non-embedded SGE "
2161 "virtual address\n");
2164 virt_addr = mboxq->sge_array->addr[0];
2166 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
2167 lpfc_sli_pcimem_bcopy(shdr, shdr,
2168 sizeof(union lpfc_sli4_cfg_shdr));
2169 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
2170 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2171 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
2172 if (shdr_status || shdr_add_status) {
2173 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
2174 if_type == LPFC_SLI_INTF_IF_TYPE_2)
2175 lpfc_printf_log(phba, KERN_ERR,
2177 "2726 READ_FCF_RECORD Indicates empty "
2180 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2181 "2521 READ_FCF_RECORD mailbox failed "
2182 "with status x%x add_status x%x, "
2183 "mbx\n", shdr_status, shdr_add_status);
2187 /* Interpreting the returned information of the FCF record */
2188 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
2189 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
2190 sizeof(struct lpfc_mbx_read_fcf_tbl));
2191 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
2192 new_fcf_record = (struct fcf_record *)(virt_addr +
2193 sizeof(struct lpfc_mbx_read_fcf_tbl));
2194 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
2195 offsetof(struct fcf_record, vlan_bitmap));
2196 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
2197 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
2199 return new_fcf_record;
2203 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
2204 * @phba: pointer to lpfc hba data structure.
2205 * @fcf_record: pointer to the fcf record.
2206 * @vlan_id: the lowest vlan identifier associated to this fcf record.
2207 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
2209 * This routine logs the detailed FCF record if the LOG_FIP loggin is
2213 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
2214 struct fcf_record *fcf_record,
2216 uint16_t next_fcf_index)
2218 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2219 "2764 READ_FCF_RECORD:\n"
2220 "\tFCF_Index : x%x\n"
2221 "\tFCF_Avail : x%x\n"
2222 "\tFCF_Valid : x%x\n"
2224 "\tFIP_Priority : x%x\n"
2225 "\tMAC_Provider : x%x\n"
2226 "\tLowest VLANID : x%x\n"
2227 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
2228 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
2229 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
2230 "\tNext_FCF_Index: x%x\n",
2231 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
2232 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
2233 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
2234 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
2235 fcf_record->fip_priority,
2236 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
2238 bf_get(lpfc_fcf_record_mac_0, fcf_record),
2239 bf_get(lpfc_fcf_record_mac_1, fcf_record),
2240 bf_get(lpfc_fcf_record_mac_2, fcf_record),
2241 bf_get(lpfc_fcf_record_mac_3, fcf_record),
2242 bf_get(lpfc_fcf_record_mac_4, fcf_record),
2243 bf_get(lpfc_fcf_record_mac_5, fcf_record),
2244 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
2245 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
2246 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
2247 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
2248 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
2249 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
2250 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
2251 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
2252 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
2253 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
2254 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
2255 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
2256 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
2257 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
2258 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
2259 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
2264 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
2265 * @phba: pointer to lpfc hba data structure.
2266 * @fcf_rec: pointer to an existing FCF record.
2267 * @new_fcf_record: pointer to a new FCF record.
2268 * @new_vlan_id: vlan id from the new FCF record.
2270 * This function performs matching test of a new FCF record against an existing
2271 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
2272 * will not be used as part of the FCF record matching criteria.
2274 * Returns true if all the fields matching, otherwise returns false.
2277 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
2278 struct lpfc_fcf_rec *fcf_rec,
2279 struct fcf_record *new_fcf_record,
2280 uint16_t new_vlan_id)
2282 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
2283 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
2285 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
2287 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
2289 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
2291 if (fcf_rec->priority != new_fcf_record->fip_priority)
2297 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
2298 * @vport: Pointer to vport object.
2299 * @fcf_index: index to next fcf.
2301 * This function processing the roundrobin fcf failover to next fcf index.
2302 * When this function is invoked, there will be a current fcf registered
2304 * Return: 0 for continue retrying flogi on currently registered fcf;
2305 * 1 for stop flogi on currently registered fcf;
2307 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
2309 struct lpfc_hba *phba = vport->phba;
2312 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
2313 spin_lock_irq(&phba->hbalock);
2314 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2315 spin_unlock_irq(&phba->hbalock);
2316 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2317 "2872 Devloss tmo with no eligible "
2318 "FCF, unregister in-use FCF (x%x) "
2319 "and rescan FCF table\n",
2320 phba->fcf.current_rec.fcf_indx);
2321 lpfc_unregister_fcf_rescan(phba);
2322 goto stop_flogi_current_fcf;
2324 /* Mark the end to FLOGI roundrobin failover */
2325 phba->hba_flag &= ~FCF_RR_INPROG;
2326 /* Allow action to new fcf asynchronous event */
2327 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2328 spin_unlock_irq(&phba->hbalock);
2329 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2330 "2865 No FCF available, stop roundrobin FCF "
2331 "failover and change port state:x%x/x%x\n",
2332 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
2333 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2335 if (!phba->fcf.fcf_redisc_attempted) {
2336 lpfc_unregister_fcf(phba);
2338 rc = lpfc_sli4_redisc_fcf_table(phba);
2340 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2341 "3195 Rediscover FCF table\n");
2342 phba->fcf.fcf_redisc_attempted = 1;
2343 lpfc_sli4_clear_fcf_rr_bmask(phba);
2345 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2346 "3196 Rediscover FCF table "
2347 "failed. Status:x%x\n", rc);
2350 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2351 "3197 Already rediscover FCF table "
2352 "attempted. No more retry\n");
2354 goto stop_flogi_current_fcf;
2356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
2357 "2794 Try FLOGI roundrobin FCF failover to "
2358 "(x%x)\n", fcf_index);
2359 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
2361 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
2362 "2761 FLOGI roundrobin FCF failover "
2363 "failed (rc:x%x) to read FCF (x%x)\n",
2364 rc, phba->fcf.current_rec.fcf_indx);
2366 goto stop_flogi_current_fcf;
2370 stop_flogi_current_fcf:
2371 lpfc_can_disctmo(vport);
2376 * lpfc_sli4_fcf_pri_list_del
2377 * @phba: pointer to lpfc hba data structure.
2378 * @fcf_index: the index of the fcf record to delete
2379 * This routine checks the on list flag of the fcf_index to be deleted.
2380 * If it is one the list then it is removed from the list, and the flag
2381 * is cleared. This routine grab the hbalock before removing the fcf
2382 * record from the list.
2384 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
2387 struct lpfc_fcf_pri *new_fcf_pri;
2389 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2390 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2391 "3058 deleting idx x%x pri x%x flg x%x\n",
2392 fcf_index, new_fcf_pri->fcf_rec.priority,
2393 new_fcf_pri->fcf_rec.flag);
2394 spin_lock_irq(&phba->hbalock);
2395 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2396 if (phba->fcf.current_rec.priority ==
2397 new_fcf_pri->fcf_rec.priority)
2398 phba->fcf.eligible_fcf_cnt--;
2399 list_del_init(&new_fcf_pri->list);
2400 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2402 spin_unlock_irq(&phba->hbalock);
2406 * lpfc_sli4_set_fcf_flogi_fail
2407 * @phba: pointer to lpfc hba data structure.
2408 * @fcf_index: the index of the fcf record to update
2409 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2410 * flag so the the round robin slection for the particular priority level
2411 * will try a different fcf record that does not have this bit set.
2412 * If the fcf record is re-read for any reason this flag is cleared brfore
2413 * adding it to the priority list.
2416 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2418 struct lpfc_fcf_pri *new_fcf_pri;
2419 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2420 spin_lock_irq(&phba->hbalock);
2421 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2422 spin_unlock_irq(&phba->hbalock);
2426 * lpfc_sli4_fcf_pri_list_add
2427 * @phba: pointer to lpfc hba data structure.
2428 * @fcf_index: the index of the fcf record to add
2429 * @new_fcf_record: pointer to a new FCF record.
2430 * This routine checks the priority of the fcf_index to be added.
2431 * If it is a lower priority than the current head of the fcf_pri list
2432 * then it is added to the list in the right order.
2433 * If it is the same priority as the current head of the list then it
2434 * is added to the head of the list and its bit in the rr_bmask is set.
2435 * If the fcf_index to be added is of a higher priority than the current
2436 * head of the list then the rr_bmask is cleared, its bit is set in the
2437 * rr_bmask and it is added to the head of the list.
2439 * 0=success 1=failure
2441 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2443 struct fcf_record *new_fcf_record)
2445 uint16_t current_fcf_pri;
2446 uint16_t last_index;
2447 struct lpfc_fcf_pri *fcf_pri;
2448 struct lpfc_fcf_pri *next_fcf_pri;
2449 struct lpfc_fcf_pri *new_fcf_pri;
2452 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2453 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2454 "3059 adding idx x%x pri x%x flg x%x\n",
2455 fcf_index, new_fcf_record->fip_priority,
2456 new_fcf_pri->fcf_rec.flag);
2457 spin_lock_irq(&phba->hbalock);
2458 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2459 list_del_init(&new_fcf_pri->list);
2460 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2461 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2462 if (list_empty(&phba->fcf.fcf_pri_list)) {
2463 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2464 ret = lpfc_sli4_fcf_rr_index_set(phba,
2465 new_fcf_pri->fcf_rec.fcf_index);
2469 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2470 LPFC_SLI4_FCF_TBL_INDX_MAX);
2471 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2472 ret = 0; /* Empty rr list */
2475 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2476 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2477 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2478 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2479 memset(phba->fcf.fcf_rr_bmask, 0,
2480 sizeof(*phba->fcf.fcf_rr_bmask));
2481 /* fcfs_at_this_priority_level = 1; */
2482 phba->fcf.eligible_fcf_cnt = 1;
2484 /* fcfs_at_this_priority_level++; */
2485 phba->fcf.eligible_fcf_cnt++;
2486 ret = lpfc_sli4_fcf_rr_index_set(phba,
2487 new_fcf_pri->fcf_rec.fcf_index);
2491 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2492 &phba->fcf.fcf_pri_list, list) {
2493 if (new_fcf_pri->fcf_rec.priority <=
2494 fcf_pri->fcf_rec.priority) {
2495 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2496 list_add(&new_fcf_pri->list,
2497 &phba->fcf.fcf_pri_list);
2499 list_add(&new_fcf_pri->list,
2500 &((struct lpfc_fcf_pri *)
2501 fcf_pri->list.prev)->list);
2504 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2505 || new_fcf_pri->fcf_rec.priority <
2506 next_fcf_pri->fcf_rec.priority) {
2507 list_add(&new_fcf_pri->list, &fcf_pri->list);
2511 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2517 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2518 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2519 spin_unlock_irq(&phba->hbalock);
2524 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2525 * @phba: pointer to lpfc hba data structure.
2526 * @mboxq: pointer to mailbox object.
2528 * This function iterates through all the fcf records available in
2529 * HBA and chooses the optimal FCF record for discovery. After finding
2530 * the FCF for discovery it registers the FCF record and kicks start
2532 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2533 * use an FCF record which matches fabric name and mac address of the
2534 * currently used FCF record.
2535 * If the driver supports only one FCF, it will try to use the FCF record
2536 * used by BOOT_BIOS.
2539 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2541 struct fcf_record *new_fcf_record;
2542 uint32_t boot_flag, addr_mode;
2543 uint16_t fcf_index, next_fcf_index;
2544 struct lpfc_fcf_rec *fcf_rec = NULL;
2545 uint16_t vlan_id = LPFC_FCOE_NULL_VID;
2546 bool select_new_fcf;
2549 /* If there is pending FCoE event restart FCF table scan */
2550 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2551 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2555 /* Parse the FCF record from the non-embedded mailbox command */
2556 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2558 if (!new_fcf_record) {
2559 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2560 "2765 Mailbox command READ_FCF_RECORD "
2561 "failed to retrieve a FCF record.\n");
2562 /* Let next new FCF event trigger fast failover */
2563 spin_lock_irq(&phba->hbalock);
2564 phba->hba_flag &= ~FCF_TS_INPROG;
2565 spin_unlock_irq(&phba->hbalock);
2566 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2570 /* Check the FCF record against the connection list */
2571 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2572 &addr_mode, &vlan_id);
2574 /* Log the FCF record information if turned on */
2575 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2579 * If the fcf record does not match with connect list entries
2580 * read the next entry; otherwise, this is an eligible FCF
2581 * record for roundrobin FCF failover.
2584 lpfc_sli4_fcf_pri_list_del(phba,
2585 bf_get(lpfc_fcf_record_fcf_index,
2587 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2588 "2781 FCF (x%x) failed connection "
2589 "list check: (x%x/x%x/%x)\n",
2590 bf_get(lpfc_fcf_record_fcf_index,
2592 bf_get(lpfc_fcf_record_fcf_avail,
2594 bf_get(lpfc_fcf_record_fcf_valid,
2596 bf_get(lpfc_fcf_record_fcf_sol,
2598 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2599 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2600 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2601 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2602 phba->fcf.current_rec.fcf_indx) {
2603 lpfc_printf_log(phba, KERN_ERR,
2605 "2862 FCF (x%x) matches property "
2606 "of in-use FCF (x%x)\n",
2607 bf_get(lpfc_fcf_record_fcf_index,
2609 phba->fcf.current_rec.fcf_indx);
2613 * In case the current in-use FCF record becomes
2614 * invalid/unavailable during FCF discovery that
2615 * was not triggered by fast FCF failover process,
2616 * treat it as fast FCF failover.
2618 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2619 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2620 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2621 "2835 Invalid in-use FCF "
2622 "(x%x), enter FCF failover "
2624 phba->fcf.current_rec.fcf_indx);
2625 spin_lock_irq(&phba->hbalock);
2626 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2627 spin_unlock_irq(&phba->hbalock);
2628 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2629 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2630 LPFC_FCOE_FCF_GET_FIRST);
2636 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2637 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2644 * If this is not the first FCF discovery of the HBA, use last
2645 * FCF record for the discovery. The condition that a rescan
2646 * matches the in-use FCF record: fabric name, switch name, mac
2647 * address, and vlan_id.
2649 spin_lock_irq(&phba->hbalock);
2650 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2651 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2652 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2653 new_fcf_record, vlan_id)) {
2654 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2655 phba->fcf.current_rec.fcf_indx) {
2656 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2657 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2658 /* Stop FCF redisc wait timer */
2659 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2661 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2662 /* Fast failover, mark completed */
2663 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2664 spin_unlock_irq(&phba->hbalock);
2665 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2666 "2836 New FCF matches in-use "
2667 "FCF (x%x), port_state:x%x, "
2669 phba->fcf.current_rec.fcf_indx,
2670 phba->pport->port_state,
2671 phba->pport->fc_flag);
2674 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2675 "2863 New FCF (x%x) matches "
2676 "property of in-use FCF (x%x)\n",
2677 bf_get(lpfc_fcf_record_fcf_index,
2679 phba->fcf.current_rec.fcf_indx);
2682 * Read next FCF record from HBA searching for the matching
2683 * with in-use record only if not during the fast failover
2684 * period. In case of fast failover period, it shall try to
2685 * determine whether the FCF record just read should be the
2688 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2689 spin_unlock_irq(&phba->hbalock);
2694 * Update on failover FCF record only if it's in FCF fast-failover
2695 * period; otherwise, update on current FCF record.
2697 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2698 fcf_rec = &phba->fcf.failover_rec;
2700 fcf_rec = &phba->fcf.current_rec;
2702 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2704 * If the driver FCF record does not have boot flag
2705 * set and new hba fcf record has boot flag set, use
2706 * the new hba fcf record.
2708 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2709 /* Choose this FCF record */
2710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2711 "2837 Update current FCF record "
2712 "(x%x) with new FCF record (x%x)\n",
2714 bf_get(lpfc_fcf_record_fcf_index,
2716 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2717 addr_mode, vlan_id, BOOT_ENABLE);
2718 spin_unlock_irq(&phba->hbalock);
2722 * If the driver FCF record has boot flag set and the
2723 * new hba FCF record does not have boot flag, read
2724 * the next FCF record.
2726 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2727 spin_unlock_irq(&phba->hbalock);
2731 * If the new hba FCF record has lower priority value
2732 * than the driver FCF record, use the new record.
2734 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2735 /* Choose the new FCF record with lower priority */
2736 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2737 "2838 Update current FCF record "
2738 "(x%x) with new FCF record (x%x)\n",
2740 bf_get(lpfc_fcf_record_fcf_index,
2742 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2743 addr_mode, vlan_id, 0);
2744 /* Reset running random FCF selection count */
2745 phba->fcf.eligible_fcf_cnt = 1;
2746 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2747 /* Update running random FCF selection count */
2748 phba->fcf.eligible_fcf_cnt++;
2749 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2750 phba->fcf.eligible_fcf_cnt);
2751 if (select_new_fcf) {
2752 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2753 "2839 Update current FCF record "
2754 "(x%x) with new FCF record (x%x)\n",
2756 bf_get(lpfc_fcf_record_fcf_index,
2758 /* Choose the new FCF by random selection */
2759 __lpfc_update_fcf_record(phba, fcf_rec,
2761 addr_mode, vlan_id, 0);
2764 spin_unlock_irq(&phba->hbalock);
2768 * This is the first suitable FCF record, choose this record for
2769 * initial best-fit FCF.
2772 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2773 "2840 Update initial FCF candidate "
2775 bf_get(lpfc_fcf_record_fcf_index,
2777 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2778 addr_mode, vlan_id, (boot_flag ?
2780 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2781 /* Setup initial running random FCF selection count */
2782 phba->fcf.eligible_fcf_cnt = 1;
2784 spin_unlock_irq(&phba->hbalock);
2788 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2789 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2790 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2792 * Case of FCF fast failover scan
2796 * It has not found any suitable FCF record, cancel
2797 * FCF scan inprogress, and do nothing
2799 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2800 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2801 "2782 No suitable FCF found: "
2803 phba->fcoe_eventtag_at_fcf_scan,
2804 bf_get(lpfc_fcf_record_fcf_index,
2806 spin_lock_irq(&phba->hbalock);
2807 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2808 phba->hba_flag &= ~FCF_TS_INPROG;
2809 spin_unlock_irq(&phba->hbalock);
2810 /* Unregister in-use FCF and rescan */
2811 lpfc_printf_log(phba, KERN_INFO,
2813 "2864 On devloss tmo "
2814 "unreg in-use FCF and "
2815 "rescan FCF table\n");
2816 lpfc_unregister_fcf_rescan(phba);
2820 * Let next new FCF event trigger fast failover
2822 phba->hba_flag &= ~FCF_TS_INPROG;
2823 spin_unlock_irq(&phba->hbalock);
2827 * It has found a suitable FCF record that is not
2828 * the same as in-use FCF record, unregister the
2829 * in-use FCF record, replace the in-use FCF record
2830 * with the new FCF record, mark FCF fast failover
2831 * completed, and then start register the new FCF
2835 /* Unregister the current in-use FCF record */
2836 lpfc_unregister_fcf(phba);
2838 /* Replace in-use record with the new record */
2839 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2840 "2842 Replace in-use FCF (x%x) "
2841 "with failover FCF (x%x)\n",
2842 phba->fcf.current_rec.fcf_indx,
2843 phba->fcf.failover_rec.fcf_indx);
2844 memcpy(&phba->fcf.current_rec,
2845 &phba->fcf.failover_rec,
2846 sizeof(struct lpfc_fcf_rec));
2848 * Mark the fast FCF failover rediscovery completed
2849 * and the start of the first round of the roundrobin
2852 spin_lock_irq(&phba->hbalock);
2853 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2854 spin_unlock_irq(&phba->hbalock);
2855 /* Register to the new FCF record */
2856 lpfc_register_fcf(phba);
2859 * In case of transaction period to fast FCF failover,
2860 * do nothing when search to the end of the FCF table.
2862 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2863 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2866 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2867 phba->fcf.fcf_flag & FCF_IN_USE) {
2869 * In case the current in-use FCF record no
2870 * longer existed during FCF discovery that
2871 * was not triggered by fast FCF failover
2872 * process, treat it as fast FCF failover.
2874 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2875 "2841 In-use FCF record (x%x) "
2876 "not reported, entering fast "
2877 "FCF failover mode scanning.\n",
2878 phba->fcf.current_rec.fcf_indx);
2879 spin_lock_irq(&phba->hbalock);
2880 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2881 spin_unlock_irq(&phba->hbalock);
2882 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2883 LPFC_FCOE_FCF_GET_FIRST);
2886 /* Register to the new FCF record */
2887 lpfc_register_fcf(phba);
2890 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2894 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2895 lpfc_register_fcf(phba);
2901 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2902 * @phba: pointer to lpfc hba data structure.
2903 * @mboxq: pointer to mailbox object.
2905 * This is the callback function for FLOGI failure roundrobin FCF failover
2906 * read FCF record mailbox command from the eligible FCF record bmask for
2907 * performing the failover. If the FCF read back is not valid/available, it
2908 * fails through to retrying FLOGI to the currently registered FCF again.
2909 * Otherwise, if the FCF read back is valid and available, it will set the
2910 * newly read FCF record to the failover FCF record, unregister currently
2911 * registered FCF record, copy the failover FCF record to the current
2912 * FCF record, and then register the current FCF record before proceeding
2913 * to trying FLOGI on the new failover FCF.
2916 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2918 struct fcf_record *new_fcf_record;
2919 uint32_t boot_flag, addr_mode;
2920 uint16_t next_fcf_index, fcf_index;
2921 uint16_t current_fcf_index;
2925 /* If link state is not up, stop the roundrobin failover process */
2926 if (phba->link_state < LPFC_LINK_UP) {
2927 spin_lock_irq(&phba->hbalock);
2928 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2929 phba->hba_flag &= ~FCF_RR_INPROG;
2930 spin_unlock_irq(&phba->hbalock);
2934 /* Parse the FCF record from the non-embedded mailbox command */
2935 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2937 if (!new_fcf_record) {
2938 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2939 "2766 Mailbox command READ_FCF_RECORD "
2940 "failed to retrieve a FCF record. "
2941 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2942 phba->fcf.fcf_flag);
2943 lpfc_unregister_fcf_rescan(phba);
2947 /* Get the needed parameters from FCF record */
2948 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2949 &addr_mode, &vlan_id);
2951 /* Log the FCF record information if turned on */
2952 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2955 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2957 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2958 "2848 Remove ineligible FCF (x%x) from "
2959 "from roundrobin bmask\n", fcf_index);
2960 /* Clear roundrobin bmask bit for ineligible FCF */
2961 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2962 /* Perform next round of roundrobin FCF failover */
2963 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2964 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2970 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2971 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2972 "2760 Perform FLOGI roundrobin FCF failover: "
2973 "FCF (x%x) back to FCF (x%x)\n",
2974 phba->fcf.current_rec.fcf_indx, fcf_index);
2975 /* Wait 500 ms before retrying FLOGI to current FCF */
2977 lpfc_issue_init_vfi(phba->pport);
2981 /* Upload new FCF record to the failover FCF record */
2982 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2983 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2984 phba->fcf.failover_rec.fcf_indx, fcf_index);
2985 spin_lock_irq(&phba->hbalock);
2986 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2987 new_fcf_record, addr_mode, vlan_id,
2988 (boot_flag ? BOOT_ENABLE : 0));
2989 spin_unlock_irq(&phba->hbalock);
2991 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2993 /* Unregister the current in-use FCF record */
2994 lpfc_unregister_fcf(phba);
2996 /* Replace in-use record with the new record */
2997 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2998 sizeof(struct lpfc_fcf_rec));
3000 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3001 "2783 Perform FLOGI roundrobin FCF failover: FCF "
3002 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
3005 lpfc_register_fcf(phba);
3007 lpfc_sli4_mbox_cmd_free(phba, mboxq);
3011 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
3012 * @phba: pointer to lpfc hba data structure.
3013 * @mboxq: pointer to mailbox object.
3015 * This is the callback function of read FCF record mailbox command for
3016 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
3017 * failover when a new FCF event happened. If the FCF read back is
3018 * valid/available and it passes the connection list check, it updates
3019 * the bmask for the eligible FCF record for roundrobin failover.
3022 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
3024 struct fcf_record *new_fcf_record;
3025 uint32_t boot_flag, addr_mode;
3026 uint16_t fcf_index, next_fcf_index;
3030 /* If link state is not up, no need to proceed */
3031 if (phba->link_state < LPFC_LINK_UP)
3034 /* If FCF discovery period is over, no need to proceed */
3035 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
3038 /* Parse the FCF record from the non-embedded mailbox command */
3039 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
3041 if (!new_fcf_record) {
3042 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3043 "2767 Mailbox command READ_FCF_RECORD "
3044 "failed to retrieve a FCF record.\n");
3048 /* Check the connection list for eligibility */
3049 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
3050 &addr_mode, &vlan_id);
3052 /* Log the FCF record information if turned on */
3053 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
3059 /* Update the eligible FCF record index bmask */
3060 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
3062 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
3065 lpfc_sli4_mbox_cmd_free(phba, mboxq);
3069 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
3070 * @phba: pointer to lpfc hba data structure.
3071 * @mboxq: pointer to mailbox data structure.
3073 * This function handles completion of init vfi mailbox command.
3076 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
3078 struct lpfc_vport *vport = mboxq->vport;
3081 * VFI not supported on interface type 0, just do the flogi
3082 * Also continue if the VFI is in use - just use the same one.
3084 if (mboxq->u.mb.mbxStatus &&
3085 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3086 LPFC_SLI_INTF_IF_TYPE_0) &&
3087 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
3088 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3089 "2891 Init VFI mailbox failed 0x%x\n",
3090 mboxq->u.mb.mbxStatus);
3091 mempool_free(mboxq, phba->mbox_mem_pool);
3092 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3096 lpfc_initial_flogi(vport);
3097 mempool_free(mboxq, phba->mbox_mem_pool);
3102 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
3103 * @vport: pointer to lpfc_vport data structure.
3105 * This function issue a init_vfi mailbox command to initialize the VFI and
3106 * VPI for the physical port.
3109 lpfc_issue_init_vfi(struct lpfc_vport *vport)
3111 LPFC_MBOXQ_t *mboxq;
3113 struct lpfc_hba *phba = vport->phba;
3115 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3117 lpfc_printf_vlog(vport, KERN_ERR,
3118 LOG_TRACE_EVENT, "2892 Failed to allocate "
3119 "init_vfi mailbox\n");
3122 lpfc_init_vfi(mboxq, vport);
3123 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
3124 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
3125 if (rc == MBX_NOT_FINISHED) {
3126 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3127 "2893 Failed to issue init_vfi mailbox\n");
3128 mempool_free(mboxq, vport->phba->mbox_mem_pool);
3133 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
3134 * @phba: pointer to lpfc hba data structure.
3135 * @mboxq: pointer to mailbox data structure.
3137 * This function handles completion of init vpi mailbox command.
3140 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
3142 struct lpfc_vport *vport = mboxq->vport;
3143 struct lpfc_nodelist *ndlp;
3144 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3146 if (mboxq->u.mb.mbxStatus) {
3147 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3148 "2609 Init VPI mailbox failed 0x%x\n",
3149 mboxq->u.mb.mbxStatus);
3150 mempool_free(mboxq, phba->mbox_mem_pool);
3151 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3154 spin_lock_irq(shost->host_lock);
3155 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
3156 spin_unlock_irq(shost->host_lock);
3158 /* If this port is physical port or FDISC is done, do reg_vpi */
3159 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
3160 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3162 lpfc_printf_vlog(vport, KERN_ERR,
3164 "2731 Cannot find fabric "
3165 "controller node\n");
3167 lpfc_register_new_vport(phba, vport, ndlp);
3168 mempool_free(mboxq, phba->mbox_mem_pool);
3172 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
3173 lpfc_initial_fdisc(vport);
3175 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
3176 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3177 "2606 No NPIV Fabric support\n");
3179 mempool_free(mboxq, phba->mbox_mem_pool);
3184 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
3185 * @vport: pointer to lpfc_vport data structure.
3187 * This function issue a init_vpi mailbox command to initialize
3188 * VPI for the vport.
3191 lpfc_issue_init_vpi(struct lpfc_vport *vport)
3193 LPFC_MBOXQ_t *mboxq;
3196 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
3197 vpi = lpfc_alloc_vpi(vport->phba);
3199 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3200 "3303 Failed to obtain vport vpi\n");
3201 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3207 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
3209 lpfc_printf_vlog(vport, KERN_ERR,
3210 LOG_TRACE_EVENT, "2607 Failed to allocate "
3211 "init_vpi mailbox\n");
3214 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
3215 mboxq->vport = vport;
3216 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
3217 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
3218 if (rc == MBX_NOT_FINISHED) {
3219 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3220 "2608 Failed to issue init_vpi mailbox\n");
3221 mempool_free(mboxq, vport->phba->mbox_mem_pool);
3226 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
3227 * @phba: pointer to lpfc hba data structure.
3229 * This function loops through the list of vports on the @phba and issues an
3230 * FDISC if possible.
3233 lpfc_start_fdiscs(struct lpfc_hba *phba)
3235 struct lpfc_vport **vports;
3238 vports = lpfc_create_vport_work_array(phba);
3239 if (vports != NULL) {
3240 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3241 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
3243 /* There are no vpi for this vport */
3244 if (vports[i]->vpi > phba->max_vpi) {
3245 lpfc_vport_set_state(vports[i],
3249 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3250 lpfc_vport_set_state(vports[i],
3254 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
3255 lpfc_issue_init_vpi(vports[i]);
3258 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
3259 lpfc_initial_fdisc(vports[i]);
3261 lpfc_vport_set_state(vports[i],
3262 FC_VPORT_NO_FABRIC_SUPP);
3263 lpfc_printf_vlog(vports[i], KERN_ERR,
3266 "Fabric support\n");
3270 lpfc_destroy_vport_work_array(phba, vports);
3274 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
3276 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf;
3277 struct lpfc_vport *vport = mboxq->vport;
3278 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3281 * VFI not supported for interface type 0, so ignore any mailbox
3282 * error (except VFI in use) and continue with the discovery.
3284 if (mboxq->u.mb.mbxStatus &&
3285 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3286 LPFC_SLI_INTF_IF_TYPE_0) &&
3287 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
3288 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3289 "2018 REG_VFI mbxStatus error x%x "
3291 mboxq->u.mb.mbxStatus, vport->port_state);
3292 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3293 /* FLOGI failed, use loop map to make discovery list */
3294 lpfc_disc_list_loopmap(vport);
3295 /* Start discovery */
3296 lpfc_disc_start(vport);
3299 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3303 /* If the VFI is already registered, there is nothing else to do
3304 * Unless this was a VFI update and we are in PT2PT mode, then
3305 * we should drop through to set the port state to ready.
3307 if (vport->fc_flag & FC_VFI_REGISTERED)
3308 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
3309 vport->fc_flag & FC_PT2PT))
3312 /* The VPI is implicitly registered when the VFI is registered */
3313 spin_lock_irq(shost->host_lock);
3314 vport->vpi_state |= LPFC_VPI_REGISTERED;
3315 vport->fc_flag |= FC_VFI_REGISTERED;
3316 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3317 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
3318 spin_unlock_irq(shost->host_lock);
3320 /* In case SLI4 FC loopback test, we are ready */
3321 if ((phba->sli_rev == LPFC_SLI_REV4) &&
3322 (phba->link_flag & LS_LOOPBACK_MODE)) {
3323 phba->link_state = LPFC_HBA_READY;
3327 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3328 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
3329 "alpacnt:%d LinkState:%x topology:%x\n",
3330 vport->port_state, vport->fc_flag, vport->fc_myDID,
3331 vport->phba->alpa_map[0],
3332 phba->link_state, phba->fc_topology);
3334 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3336 * For private loop or for NPort pt2pt,
3337 * just start discovery and we are done.
3339 if ((vport->fc_flag & FC_PT2PT) ||
3340 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
3341 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
3343 /* Use loop map to make discovery list */
3344 lpfc_disc_list_loopmap(vport);
3345 /* Start discovery */
3346 if (vport->fc_flag & FC_PT2PT)
3347 vport->port_state = LPFC_VPORT_READY;
3349 lpfc_disc_start(vport);
3351 lpfc_start_fdiscs(phba);
3352 lpfc_do_scr_ns_plogi(phba, vport);
3357 mempool_free(mboxq, phba->mbox_mem_pool);
3359 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
3366 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3368 MAILBOX_t *mb = &pmb->u.mb;
3369 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3370 struct lpfc_vport *vport = pmb->vport;
3371 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3372 struct serv_parm *sp = &vport->fc_sparam;
3375 /* Check for error */
3376 if (mb->mbxStatus) {
3377 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3378 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3379 "0319 READ_SPARAM mbxStatus error x%x "
3381 mb->mbxStatus, vport->port_state);
3382 lpfc_linkdown(phba);
3386 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
3387 sizeof (struct serv_parm));
3389 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
3390 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3391 ed_tov = (ed_tov + 999999) / 1000000;
3393 phba->fc_edtov = ed_tov;
3394 phba->fc_ratov = (2 * ed_tov) / 1000;
3395 if (phba->fc_ratov < FF_DEF_RATOV) {
3396 /* RA_TOV should be atleast 10sec for initial flogi */
3397 phba->fc_ratov = FF_DEF_RATOV;
3400 lpfc_update_vport_wwn(vport);
3401 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3402 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3403 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3404 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3407 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3409 mempool_free(pmb, phba->mbox_mem_pool);
3411 /* Check if sending the FLOGI is being deferred to after we get
3412 * up to date CSPs from MBX_READ_SPARAM.
3414 if (phba->hba_flag & HBA_DEFER_FLOGI) {
3415 lpfc_initial_flogi(vport);
3416 phba->hba_flag &= ~HBA_DEFER_FLOGI;
3421 pmb->ctx_buf = NULL;
3422 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3424 lpfc_issue_clear_la(phba, vport);
3425 mempool_free(pmb, phba->mbox_mem_pool);
3430 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3432 struct lpfc_vport *vport = phba->pport;
3433 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3434 struct Scsi_Host *shost;
3436 struct lpfc_dmabuf *mp;
3438 struct fcf_record *fcf_record;
3439 uint32_t fc_flags = 0;
3440 unsigned long iflags;
3442 spin_lock_irqsave(&phba->hbalock, iflags);
3443 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3445 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3446 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3447 case LPFC_LINK_SPEED_1GHZ:
3448 case LPFC_LINK_SPEED_2GHZ:
3449 case LPFC_LINK_SPEED_4GHZ:
3450 case LPFC_LINK_SPEED_8GHZ:
3451 case LPFC_LINK_SPEED_10GHZ:
3452 case LPFC_LINK_SPEED_16GHZ:
3453 case LPFC_LINK_SPEED_32GHZ:
3454 case LPFC_LINK_SPEED_64GHZ:
3455 case LPFC_LINK_SPEED_128GHZ:
3456 case LPFC_LINK_SPEED_256GHZ:
3459 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3464 if (phba->fc_topology &&
3465 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3466 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3467 "3314 Toplogy changed was 0x%x is 0x%x\n",
3469 bf_get(lpfc_mbx_read_top_topology, la));
3470 phba->fc_topology_changed = 1;
3473 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3474 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA);
3476 shost = lpfc_shost_from_vport(vport);
3477 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3478 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3480 /* if npiv is enabled and this adapter supports npiv log
3481 * a message that npiv is not supported in this topology
3483 if (phba->cfg_enable_npiv && phba->max_vpi)
3484 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3485 "1309 Link Up Event npiv not supported in loop "
3487 /* Get Loop Map information */
3488 if (bf_get(lpfc_mbx_read_top_il, la))
3489 fc_flags |= FC_LBIT;
3491 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3492 i = la->lilpBde64.tus.f.bdeSize;
3495 phba->alpa_map[0] = 0;
3497 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3508 numalpa = phba->alpa_map[0];
3510 while (j < numalpa) {
3511 memset(un.pamap, 0, 16);
3512 for (k = 1; j < numalpa; k++) {
3514 phba->alpa_map[j + 1];
3519 /* Link Up Event ALPA map */
3520 lpfc_printf_log(phba,
3523 "1304 Link Up Event "
3524 "ALPA map Data: x%x "
3526 un.pa.wd1, un.pa.wd2,
3527 un.pa.wd3, un.pa.wd4);
3532 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3533 if (phba->max_vpi && phba->cfg_enable_npiv &&
3534 (phba->sli_rev >= LPFC_SLI_REV3))
3535 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3537 vport->fc_myDID = phba->fc_pref_DID;
3538 fc_flags |= FC_LBIT;
3540 spin_unlock_irqrestore(&phba->hbalock, iflags);
3543 spin_lock_irqsave(shost->host_lock, iflags);
3544 vport->fc_flag |= fc_flags;
3545 spin_unlock_irqrestore(shost->host_lock, iflags);
3551 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3555 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3557 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3560 sparam_mbox->vport = vport;
3561 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3562 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3563 if (rc == MBX_NOT_FINISHED) {
3564 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf;
3565 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3567 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3571 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3572 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3575 vport->port_state = LPFC_LOCAL_CFG_LINK;
3576 lpfc_config_link(phba, cfglink_mbox);
3577 cfglink_mbox->vport = vport;
3578 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3579 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3580 if (rc == MBX_NOT_FINISHED) {
3581 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3585 vport->port_state = LPFC_VPORT_UNKNOWN;
3587 * Add the driver's default FCF record at FCF index 0 now. This
3588 * is phase 1 implementation that support FCF index 0 and driver
3591 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3592 fcf_record = kzalloc(sizeof(struct fcf_record),
3594 if (unlikely(!fcf_record)) {
3595 lpfc_printf_log(phba, KERN_ERR,
3597 "2554 Could not allocate memory for "
3603 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3604 LPFC_FCOE_FCF_DEF_INDEX);
3605 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3607 lpfc_printf_log(phba, KERN_ERR,
3609 "2013 Could not manually add FCF "
3610 "record 0, status %d\n", rc);
3618 * The driver is expected to do FIP/FCF. Call the port
3619 * and get the FCF Table.
3621 spin_lock_irqsave(&phba->hbalock, iflags);
3622 if (phba->hba_flag & FCF_TS_INPROG) {
3623 spin_unlock_irqrestore(&phba->hbalock, iflags);
3626 /* This is the initial FCF discovery scan */
3627 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3628 spin_unlock_irqrestore(&phba->hbalock, iflags);
3629 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3630 "2778 Start FCF table scan at linkup\n");
3631 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3632 LPFC_FCOE_FCF_GET_FIRST);
3634 spin_lock_irqsave(&phba->hbalock, iflags);
3635 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3636 spin_unlock_irqrestore(&phba->hbalock, iflags);
3639 /* Reset FCF roundrobin bmask for new discovery */
3640 lpfc_sli4_clear_fcf_rr_bmask(phba);
3643 /* Prepare for LINK up registrations */
3644 memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
3645 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
3646 init_utsname()->nodename);
3649 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3650 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3651 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n",
3652 vport->port_state, sparam_mbox, cfglink_mbox);
3653 lpfc_issue_clear_la(phba, vport);
3658 lpfc_enable_la(struct lpfc_hba *phba)
3661 struct lpfc_sli *psli = &phba->sli;
3662 spin_lock_irq(&phba->hbalock);
3663 psli->sli_flag |= LPFC_PROCESS_LA;
3664 if (phba->sli_rev <= LPFC_SLI_REV3) {
3665 control = readl(phba->HCregaddr);
3666 control |= HC_LAINT_ENA;
3667 writel(control, phba->HCregaddr);
3668 readl(phba->HCregaddr); /* flush */
3670 spin_unlock_irq(&phba->hbalock);
3674 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3676 lpfc_linkdown(phba);
3677 lpfc_enable_la(phba);
3678 lpfc_unregister_unused_fcf(phba);
3679 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3684 * This routine handles processing a READ_TOPOLOGY mailbox
3685 * command upon completion. It is setup in the LPFC_MBOXQ
3686 * as the completion routine when the command is
3687 * handed off to the SLI layer. SLI4 only.
3690 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3692 struct lpfc_vport *vport = pmb->vport;
3693 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3694 struct lpfc_mbx_read_top *la;
3695 struct lpfc_sli_ring *pring;
3696 MAILBOX_t *mb = &pmb->u.mb;
3697 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3699 unsigned long iflags;
3701 /* Unblock ELS traffic */
3702 pring = lpfc_phba_elsring(phba);
3704 pring->flag &= ~LPFC_STOP_IOCB_EVENT;
3706 /* Check for error */
3707 if (mb->mbxStatus) {
3708 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3709 "1307 READ_LA mbox error x%x state x%x\n",
3710 mb->mbxStatus, vport->port_state);
3711 lpfc_mbx_issue_link_down(phba);
3712 phba->link_state = LPFC_HBA_ERROR;
3713 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3716 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3717 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
3719 memcpy(&phba->alpa_map[0], mp->virt, 128);
3721 spin_lock_irqsave(shost->host_lock, iflags);
3722 if (bf_get(lpfc_mbx_read_top_pb, la))
3723 vport->fc_flag |= FC_BYPASSED_MODE;
3725 vport->fc_flag &= ~FC_BYPASSED_MODE;
3726 spin_unlock_irqrestore(shost->host_lock, iflags);
3728 if (phba->fc_eventTag <= la->eventTag) {
3729 phba->fc_stat.LinkMultiEvent++;
3730 if (attn_type == LPFC_ATT_LINK_UP)
3731 if (phba->fc_eventTag != 0)
3732 lpfc_linkdown(phba);
3735 phba->fc_eventTag = la->eventTag;
3736 if (phba->sli_rev < LPFC_SLI_REV4) {
3737 spin_lock_irqsave(&phba->hbalock, iflags);
3738 if (bf_get(lpfc_mbx_read_top_mm, la))
3739 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3741 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3742 spin_unlock_irqrestore(&phba->hbalock, iflags);
3745 phba->link_events++;
3746 if ((attn_type == LPFC_ATT_LINK_UP) &&
3747 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3748 phba->fc_stat.LinkUp++;
3749 if (phba->link_flag & LS_LOOPBACK_MODE) {
3750 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3751 "1306 Link Up Event in loop back mode "
3752 "x%x received Data: x%x x%x x%x x%x\n",
3753 la->eventTag, phba->fc_eventTag,
3754 bf_get(lpfc_mbx_read_top_alpa_granted,
3756 bf_get(lpfc_mbx_read_top_link_spd, la),
3759 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3760 "1303 Link Up Event x%x received "
3761 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3762 la->eventTag, phba->fc_eventTag,
3763 bf_get(lpfc_mbx_read_top_alpa_granted,
3765 bf_get(lpfc_mbx_read_top_link_spd, la),
3767 bf_get(lpfc_mbx_read_top_mm, la),
3768 bf_get(lpfc_mbx_read_top_fa, la),
3769 phba->wait_4_mlo_maint_flg);
3771 lpfc_mbx_process_link_up(phba, la);
3773 if (phba->cmf_active_mode != LPFC_CFG_OFF)
3774 lpfc_cmf_signal_init(phba);
3776 } else if (attn_type == LPFC_ATT_LINK_DOWN ||
3777 attn_type == LPFC_ATT_UNEXP_WWPN) {
3778 phba->fc_stat.LinkDown++;
3779 if (phba->link_flag & LS_LOOPBACK_MODE)
3780 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3781 "1308 Link Down Event in loop back mode "
3783 "Data: x%x x%x x%x\n",
3784 la->eventTag, phba->fc_eventTag,
3785 phba->pport->port_state, vport->fc_flag);
3786 else if (attn_type == LPFC_ATT_UNEXP_WWPN)
3787 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3788 "1313 Link Down Unexpected FA WWPN Event x%x "
3789 "received Data: x%x x%x x%x x%x x%x\n",
3790 la->eventTag, phba->fc_eventTag,
3791 phba->pport->port_state, vport->fc_flag,
3792 bf_get(lpfc_mbx_read_top_mm, la),
3793 bf_get(lpfc_mbx_read_top_fa, la));
3795 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3796 "1305 Link Down Event x%x received "
3797 "Data: x%x x%x x%x x%x x%x\n",
3798 la->eventTag, phba->fc_eventTag,
3799 phba->pport->port_state, vport->fc_flag,
3800 bf_get(lpfc_mbx_read_top_mm, la),
3801 bf_get(lpfc_mbx_read_top_fa, la));
3802 lpfc_mbx_issue_link_down(phba);
3804 if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
3805 attn_type == LPFC_ATT_LINK_UP) {
3806 if (phba->link_state != LPFC_LINK_DOWN) {
3807 phba->fc_stat.LinkDown++;
3808 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3809 "1312 Link Down Event x%x received "
3810 "Data: x%x x%x x%x\n",
3811 la->eventTag, phba->fc_eventTag,
3812 phba->pport->port_state, vport->fc_flag);
3813 lpfc_mbx_issue_link_down(phba);
3815 lpfc_enable_la(phba);
3817 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3818 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3819 "Data: x%x x%x x%x\n",
3820 la->eventTag, phba->fc_eventTag,
3821 phba->pport->port_state, vport->fc_flag);
3823 * The cmnd that triggered this will be waiting for this
3826 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3827 if (phba->wait_4_mlo_maint_flg) {
3828 phba->wait_4_mlo_maint_flg = 0;
3829 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3833 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3834 bf_get(lpfc_mbx_read_top_fa, la)) {
3835 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3836 lpfc_issue_clear_la(phba, vport);
3837 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3839 bf_get(lpfc_mbx_read_top_fa, la));
3842 lpfc_mbx_cmpl_read_topology_free_mbuf:
3843 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3845 mempool_free(pmb, phba->mbox_mem_pool);
3850 * This routine handles processing a REG_LOGIN mailbox
3851 * command upon completion. It is setup in the LPFC_MBOXQ
3852 * as the completion routine when the command is
3853 * handed off to the SLI layer.
3856 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3858 struct lpfc_vport *vport = pmb->vport;
3859 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3860 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
3862 pmb->ctx_buf = NULL;
3863 pmb->ctx_ndlp = NULL;
3865 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY,
3866 "0002 rpi:%x DID:%x flg:%x %d x%px\n",
3867 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3868 kref_read(&ndlp->kref),
3870 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3871 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3873 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3874 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3875 /* We rcvd a rscn after issuing this
3876 * mbox reg login, we may have cycled
3877 * back through the state and be
3878 * back at reg login state so this
3879 * mbox needs to be ignored becase
3880 * there is another reg login in
3883 spin_lock_irq(&ndlp->lock);
3884 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3885 spin_unlock_irq(&ndlp->lock);
3888 * We cannot leave the RPI registered because
3889 * if we go thru discovery again for this ndlp
3890 * a subsequent REG_RPI will fail.
3892 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3893 lpfc_unreg_rpi(vport, ndlp);
3896 /* Call state machine */
3897 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3899 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3901 mempool_free(pmb, phba->mbox_mem_pool);
3902 /* decrement the node reference count held for this callback
3911 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3913 MAILBOX_t *mb = &pmb->u.mb;
3914 struct lpfc_vport *vport = pmb->vport;
3915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3917 switch (mb->mbxStatus) {
3920 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3921 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3924 /* If VPI is busy, reset the HBA */
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 (!(phba->pport->load_flag & FC_UNLOADING))
3930 lpfc_workq_post_event(phba, NULL, NULL,
3931 LPFC_EVT_RESET_HBA);
3933 spin_lock_irq(shost->host_lock);
3934 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3935 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3936 spin_unlock_irq(shost->host_lock);
3937 mempool_free(pmb, phba->mbox_mem_pool);
3938 lpfc_cleanup_vports_rrqs(vport, NULL);
3940 * This shost reference might have been taken at the beginning of
3941 * lpfc_vport_delete()
3943 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3944 scsi_host_put(shost);
3948 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3950 struct lpfc_hba *phba = vport->phba;
3954 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3958 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3959 mbox->vport = vport;
3960 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3961 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3962 if (rc == MBX_NOT_FINISHED) {
3963 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3964 "1800 Could not issue unreg_vpi\n");
3965 mempool_free(mbox, phba->mbox_mem_pool);
3972 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3974 struct lpfc_vport *vport = pmb->vport;
3975 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3976 MAILBOX_t *mb = &pmb->u.mb;
3978 switch (mb->mbxStatus) {
3982 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3983 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3985 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3986 spin_lock_irq(shost->host_lock);
3987 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3988 spin_unlock_irq(shost->host_lock);
3989 vport->fc_myDID = 0;
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);
3996 lpfc_nvme_update_localport(vport);
4001 spin_lock_irq(shost->host_lock);
4002 vport->vpi_state |= LPFC_VPI_REGISTERED;
4003 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
4004 spin_unlock_irq(shost->host_lock);
4005 vport->num_disc_nodes = 0;
4006 /* go thru NPR list and issue ELS PLOGIs */
4007 if (vport->fc_npr_cnt)
4008 lpfc_els_disc_plogi(vport);
4010 if (!vport->num_disc_nodes) {
4011 spin_lock_irq(shost->host_lock);
4012 vport->fc_flag &= ~FC_NDISC_ACTIVE;
4013 spin_unlock_irq(shost->host_lock);
4014 lpfc_can_disctmo(vport);
4016 vport->port_state = LPFC_VPORT_READY;
4019 mempool_free(pmb, phba->mbox_mem_pool);
4024 * lpfc_create_static_vport - Read HBA config region to create static vports.
4025 * @phba: pointer to lpfc hba data structure.
4027 * This routine issue a DUMP mailbox command for config region 22 to get
4028 * the list of static vports to be created. The function create vports
4029 * based on the information returned from the HBA.
4032 lpfc_create_static_vport(struct lpfc_hba *phba)
4034 LPFC_MBOXQ_t *pmb = NULL;
4036 struct static_vport_info *vport_info;
4037 int mbx_wait_rc = 0, i;
4038 struct fc_vport_identifiers vport_id;
4039 struct fc_vport *new_fc_vport;
4040 struct Scsi_Host *shost;
4041 struct lpfc_vport *vport;
4042 uint16_t offset = 0;
4043 uint8_t *vport_buff;
4044 struct lpfc_dmabuf *mp;
4045 uint32_t byte_count = 0;
4047 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4049 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4050 "0542 lpfc_create_static_vport failed to"
4051 " allocate mailbox memory\n");
4054 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
4057 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
4059 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4060 "0543 lpfc_create_static_vport failed to"
4061 " allocate vport_info\n");
4062 mempool_free(pmb, phba->mbox_mem_pool);
4066 vport_buff = (uint8_t *) vport_info;
4068 /* free dma buffer from previous round */
4070 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
4071 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4074 if (lpfc_dump_static_vport(phba, pmb, offset))
4077 pmb->vport = phba->pport;
4078 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
4081 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
4082 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4083 "0544 lpfc_create_static_vport failed to"
4084 " issue dump mailbox command ret 0x%x "
4086 mbx_wait_rc, mb->mbxStatus);
4090 if (phba->sli_rev == LPFC_SLI_REV4) {
4091 byte_count = pmb->u.mqe.un.mb_words[5];
4092 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
4093 if (byte_count > sizeof(struct static_vport_info) -
4095 byte_count = sizeof(struct static_vport_info)
4097 memcpy(vport_buff + offset, mp->virt, byte_count);
4098 offset += byte_count;
4100 if (mb->un.varDmp.word_cnt >
4101 sizeof(struct static_vport_info) - offset)
4102 mb->un.varDmp.word_cnt =
4103 sizeof(struct static_vport_info)
4105 byte_count = mb->un.varDmp.word_cnt;
4106 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
4107 vport_buff + offset,
4110 offset += byte_count;
4113 } while (byte_count &&
4114 offset < sizeof(struct static_vport_info));
4117 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
4118 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
4119 != VPORT_INFO_REV)) {
4120 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4121 "0545 lpfc_create_static_vport bad"
4122 " information header 0x%x 0x%x\n",
4123 le32_to_cpu(vport_info->signature),
4124 le32_to_cpu(vport_info->rev) &
4125 VPORT_INFO_REV_MASK);
4130 shost = lpfc_shost_from_vport(phba->pport);
4132 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
4133 memset(&vport_id, 0, sizeof(vport_id));
4134 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
4135 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
4136 if (!vport_id.port_name || !vport_id.node_name)
4139 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
4140 vport_id.vport_type = FC_PORTTYPE_NPIV;
4141 vport_id.disable = false;
4142 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
4144 if (!new_fc_vport) {
4145 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4146 "0546 lpfc_create_static_vport failed to"
4151 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
4152 vport->vport_flag |= STATIC_VPORT;
4157 if (mbx_wait_rc != MBX_TIMEOUT) {
4159 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
4160 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4163 mempool_free(pmb, phba->mbox_mem_pool);
4170 * This routine handles processing a Fabric REG_LOGIN mailbox
4171 * command upon completion. It is setup in the LPFC_MBOXQ
4172 * as the completion routine when the command is
4173 * handed off to the SLI layer.
4176 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4178 struct lpfc_vport *vport = pmb->vport;
4179 MAILBOX_t *mb = &pmb->u.mb;
4180 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4181 struct lpfc_nodelist *ndlp;
4182 struct Scsi_Host *shost;
4184 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4185 pmb->ctx_ndlp = NULL;
4186 pmb->ctx_buf = NULL;
4188 if (mb->mbxStatus) {
4189 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4190 "0258 Register Fabric login error: 0x%x\n",
4192 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4194 mempool_free(pmb, phba->mbox_mem_pool);
4196 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4197 /* FLOGI failed, use loop map to make discovery list */
4198 lpfc_disc_list_loopmap(vport);
4200 /* Start discovery */
4201 lpfc_disc_start(vport);
4202 /* Decrement the reference count to ndlp after the
4203 * reference to the ndlp are done.
4209 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4210 /* Decrement the reference count to ndlp after the reference
4211 * to the ndlp are done.
4217 if (phba->sli_rev < LPFC_SLI_REV4)
4218 ndlp->nlp_rpi = mb->un.varWords[0];
4219 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4220 ndlp->nlp_type |= NLP_FABRIC;
4221 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4223 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
4224 /* when physical port receive logo donot start
4225 * vport discovery */
4226 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
4227 lpfc_start_fdiscs(phba);
4229 shost = lpfc_shost_from_vport(vport);
4230 spin_lock_irq(shost->host_lock);
4231 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
4232 spin_unlock_irq(shost->host_lock);
4234 lpfc_do_scr_ns_plogi(phba, vport);
4237 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4239 mempool_free(pmb, phba->mbox_mem_pool);
4241 /* Drop the reference count from the mbox at the end after
4242 * all the current reference to the ndlp have been done.
4249 * This routine will issue a GID_FT for each FC4 Type supported
4250 * by the driver. ALL GID_FTs must complete before discovery is started.
4253 lpfc_issue_gidft(struct lpfc_vport *vport)
4255 /* Good status, issue CT Request to NameServer */
4256 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4257 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
4258 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
4259 /* Cannot issue NameServer FCP Query, so finish up
4262 lpfc_printf_vlog(vport, KERN_ERR,
4264 "0604 %s FC TYPE %x %s\n",
4265 "Failed to issue GID_FT to ",
4267 "Finishing discovery.");
4273 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4274 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
4275 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
4276 /* Cannot issue NameServer NVME Query, so finish up
4279 lpfc_printf_vlog(vport, KERN_ERR,
4281 "0605 %s FC_TYPE %x %s %d\n",
4282 "Failed to issue GID_FT to ",
4284 "Finishing discovery: gidftinp ",
4286 if (vport->gidft_inp == 0)
4291 return vport->gidft_inp;
4295 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports
4296 * @vport: The virtual port for which this call is being executed.
4298 * This routine will issue a GID_PT to get a list of all N_Ports
4301 * 0 - Failure to issue a GID_PT
4305 lpfc_issue_gidpt(struct lpfc_vport *vport)
4307 /* Good status, issue CT Request to NameServer */
4308 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) {
4309 /* Cannot issue NameServer FCP Query, so finish up
4312 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4313 "0606 %s Port TYPE %x %s\n",
4314 "Failed to issue GID_PT to ",
4316 "Finishing discovery.");
4324 * This routine handles processing a NameServer REG_LOGIN mailbox
4325 * command upon completion. It is setup in the LPFC_MBOXQ
4326 * as the completion routine when the command is
4327 * handed off to the SLI layer.
4330 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4332 MAILBOX_t *mb = &pmb->u.mb;
4333 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4334 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4335 struct lpfc_vport *vport = pmb->vport;
4338 pmb->ctx_buf = NULL;
4339 pmb->ctx_ndlp = NULL;
4340 vport->gidft_inp = 0;
4342 if (mb->mbxStatus) {
4343 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4344 "0260 Register NameServer error: 0x%x\n",
4348 /* decrement the node reference count held for this
4349 * callback function.
4352 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4354 mempool_free(pmb, phba->mbox_mem_pool);
4356 /* If the node is not registered with the scsi or nvme
4357 * transport, remove the fabric node. The failed reg_login
4360 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
4361 spin_lock_irq(&ndlp->lock);
4362 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
4363 spin_unlock_irq(&ndlp->lock);
4364 lpfc_nlp_not_used(ndlp);
4367 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4369 * RegLogin failed, use loop map to make discovery
4372 lpfc_disc_list_loopmap(vport);
4374 /* Start discovery */
4375 lpfc_disc_start(vport);
4378 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4382 if (phba->sli_rev < LPFC_SLI_REV4)
4383 ndlp->nlp_rpi = mb->un.varWords[0];
4384 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4385 ndlp->nlp_type |= NLP_FABRIC;
4386 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4387 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
4388 "0003 rpi:%x DID:%x flg:%x %d x%px\n",
4389 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4390 kref_read(&ndlp->kref),
4393 if (vport->port_state < LPFC_VPORT_READY) {
4394 /* Link up discovery requires Fabric registration. */
4395 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
4396 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
4397 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4398 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
4400 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4401 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
4402 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
4404 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4405 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
4406 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
4409 /* Issue SCR just before NameServer GID_FT Query */
4410 lpfc_issue_els_scr(vport, 0);
4412 /* Link was bounced or a Fabric LOGO occurred. Start EDC
4413 * with initial FW values provided the congestion mode is
4414 * not off. Note that signals may or may not be supported
4415 * by the adapter but FPIN is provided by default for 1
4416 * or both missing signals support.
4418 if (phba->cmf_active_mode != LPFC_CFG_OFF) {
4419 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin;
4420 phba->cgn_reg_signal = phba->cgn_init_reg_signal;
4421 rc = lpfc_issue_els_edc(vport, 0);
4422 lpfc_printf_log(phba, KERN_INFO,
4423 LOG_INIT | LOG_ELS | LOG_DISCOVERY,
4424 "4220 EDC issue error x%x, Data: x%x\n",
4425 rc, phba->cgn_init_reg_signal);
4427 lpfc_issue_els_rdf(vport, 0);
4431 vport->fc_ns_retry = 0;
4432 if (lpfc_issue_gidft(vport) == 0)
4436 * At this point in time we may need to wait for multiple
4437 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
4439 * decrement the node reference count held for this
4440 * callback function.
4443 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4445 mempool_free(pmb, phba->mbox_mem_pool);
4451 * This routine handles processing a Fabric Controller REG_LOGIN mailbox
4452 * command upon completion. It is setup in the LPFC_MBOXQ
4453 * as the completion routine when the command is handed off to the SLI layer.
4456 lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4458 struct lpfc_vport *vport = pmb->vport;
4459 MAILBOX_t *mb = &pmb->u.mb;
4460 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4461 struct lpfc_nodelist *ndlp;
4463 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4464 pmb->ctx_ndlp = NULL;
4465 pmb->ctx_buf = NULL;
4467 if (mb->mbxStatus) {
4468 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4469 "0933 %s: Register FC login error: 0x%x\n",
4470 __func__, mb->mbxStatus);
4474 lpfc_check_nlp_post_devloss(vport, ndlp);
4476 if (phba->sli_rev < LPFC_SLI_REV4)
4477 ndlp->nlp_rpi = mb->un.varWords[0];
4479 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4480 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n",
4481 __func__, ndlp->nlp_DID, ndlp->nlp_rpi,
4484 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4485 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
4486 ndlp->nlp_type |= NLP_FABRIC;
4487 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4490 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4492 mempool_free(pmb, phba->mbox_mem_pool);
4494 /* Drop the reference count from the mbox at the end after
4495 * all the current reference to the ndlp have been done.
4501 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4503 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4504 struct fc_rport *rport;
4505 struct lpfc_rport_data *rdata;
4506 struct fc_rport_identifiers rport_ids;
4507 struct lpfc_hba *phba = vport->phba;
4508 unsigned long flags;
4510 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4513 /* Remote port has reappeared. Re-register w/ FC transport */
4514 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
4515 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
4516 rport_ids.port_id = ndlp->nlp_DID;
4517 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
4520 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4521 "rport add: did:x%x flg:x%x type x%x",
4522 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4524 /* Don't add the remote port if unloading. */
4525 if (vport->load_flag & FC_UNLOADING)
4529 * Disassociate any older association between this ndlp and rport
4532 rdata = ndlp->rport->dd_data;
4533 rdata->pnode = NULL;
4536 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
4538 dev_printk(KERN_WARNING, &phba->pcidev->dev,
4539 "Warning: fc_remote_port_add failed\n");
4543 /* Successful port add. Complete initializing node data */
4544 rport->maxframe_size = ndlp->nlp_maxframe;
4545 rport->supported_classes = ndlp->nlp_class_sup;
4546 rdata = rport->dd_data;
4547 rdata->pnode = lpfc_nlp_get(ndlp);
4548 if (!rdata->pnode) {
4549 dev_warn(&phba->pcidev->dev,
4550 "Warning - node ref failed. Unreg rport\n");
4551 fc_remote_port_delete(rport);
4556 spin_lock_irqsave(&ndlp->lock, flags);
4557 ndlp->fc4_xpt_flags |= SCSI_XPT_REGD;
4558 spin_unlock_irqrestore(&ndlp->lock, flags);
4560 if (ndlp->nlp_type & NLP_FCP_TARGET)
4561 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
4562 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
4563 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
4564 if (ndlp->nlp_type & NLP_NVME_INITIATOR)
4565 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
4566 if (ndlp->nlp_type & NLP_NVME_TARGET)
4567 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
4568 if (ndlp->nlp_type & NLP_NVME_DISCOVERY)
4569 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
4571 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
4572 fc_remote_port_rolechg(rport, rport_ids.roles);
4574 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4575 "3183 %s rport x%px DID x%x, role x%x refcnt %d\n",
4576 __func__, rport, rport->port_id, rport->roles,
4577 kref_read(&ndlp->kref));
4579 if ((rport->scsi_target_id != -1) &&
4580 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
4581 ndlp->nlp_sid = rport->scsi_target_id;
4588 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
4590 struct fc_rport *rport = ndlp->rport;
4591 struct lpfc_vport *vport = ndlp->vport;
4593 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4596 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4597 "rport delete: did:x%x flg:x%x type x%x",
4598 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4600 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4601 "3184 rport unregister x%06x, rport x%px "
4602 "xptflg x%x refcnt %d\n",
4603 ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags,
4604 kref_read(&ndlp->kref));
4606 fc_remote_port_delete(rport);
4611 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
4613 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4614 unsigned long iflags;
4616 spin_lock_irqsave(shost->host_lock, iflags);
4618 case NLP_STE_UNUSED_NODE:
4619 vport->fc_unused_cnt += count;
4621 case NLP_STE_PLOGI_ISSUE:
4622 vport->fc_plogi_cnt += count;
4624 case NLP_STE_ADISC_ISSUE:
4625 vport->fc_adisc_cnt += count;
4627 case NLP_STE_REG_LOGIN_ISSUE:
4628 vport->fc_reglogin_cnt += count;
4630 case NLP_STE_PRLI_ISSUE:
4631 vport->fc_prli_cnt += count;
4633 case NLP_STE_UNMAPPED_NODE:
4634 vport->fc_unmap_cnt += count;
4636 case NLP_STE_MAPPED_NODE:
4637 vport->fc_map_cnt += count;
4639 case NLP_STE_NPR_NODE:
4640 if (vport->fc_npr_cnt == 0 && count == -1)
4641 vport->fc_npr_cnt = 0;
4643 vport->fc_npr_cnt += count;
4646 spin_unlock_irqrestore(shost->host_lock, iflags);
4649 /* Register a node with backend if not already done */
4651 lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4653 unsigned long iflags;
4655 lpfc_check_nlp_post_devloss(vport, ndlp);
4657 spin_lock_irqsave(&ndlp->lock, iflags);
4658 if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) {
4659 /* Already registered with backend, trigger rescan */
4660 spin_unlock_irqrestore(&ndlp->lock, iflags);
4662 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD &&
4663 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) {
4664 lpfc_nvme_rescan_port(vport, ndlp);
4669 ndlp->fc4_xpt_flags |= NLP_XPT_REGD;
4670 spin_unlock_irqrestore(&ndlp->lock, iflags);
4672 if (lpfc_valid_xpt_node(ndlp)) {
4673 vport->phba->nport_event_cnt++;
4675 * Tell the fc transport about the port, if we haven't
4676 * already. If we have, and it's a scsi entity, be
4678 lpfc_register_remote_port(vport, ndlp);
4681 /* We are done if we do not have any NVME remote node */
4682 if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME))
4685 /* Notify the NVME transport of this new rport. */
4686 if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
4687 ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4688 if (vport->phba->nvmet_support == 0) {
4689 /* Register this rport with the transport.
4690 * Only NVME Target Rports are registered with
4693 if (ndlp->nlp_type & NLP_NVME_TARGET) {
4694 vport->phba->nport_event_cnt++;
4695 lpfc_nvme_register_port(vport, ndlp);
4698 /* Just take an NDLP ref count since the
4699 * target does not register rports.
4706 /* Unregister a node with backend if not already done */
4708 lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4710 unsigned long iflags;
4712 spin_lock_irqsave(&ndlp->lock, iflags);
4713 if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) {
4714 spin_unlock_irqrestore(&ndlp->lock, iflags);
4718 ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD;
4719 spin_unlock_irqrestore(&ndlp->lock, iflags);
4722 ndlp->fc4_xpt_flags & SCSI_XPT_REGD) {
4723 vport->phba->nport_event_cnt++;
4724 lpfc_unregister_remote_port(ndlp);
4727 if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) {
4728 vport->phba->nport_event_cnt++;
4729 if (vport->phba->nvmet_support == 0) {
4730 /* Start devloss if target. */
4731 if (ndlp->nlp_type & NLP_NVME_TARGET)
4732 lpfc_nvme_unregister_port(vport, ndlp);
4734 /* NVMET has no upcall. */
4742 * Adisc state change handling
4745 lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4748 switch (new_state) {
4750 * Any state to ADISC_ISSUE
4751 * Do nothing, adisc cmpl handling will trigger state changes
4753 case NLP_STE_ADISC_ISSUE:
4757 * ADISC_ISSUE to mapped states
4758 * Trigger a registration with backend, it will be nop if
4759 * already registered
4761 case NLP_STE_UNMAPPED_NODE:
4762 ndlp->nlp_type |= NLP_FC_NODE;
4764 case NLP_STE_MAPPED_NODE:
4765 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4766 lpfc_nlp_reg_node(vport, ndlp);
4770 * ADISC_ISSUE to non-mapped states
4771 * We are moving from ADISC_ISSUE to a non-mapped state because
4772 * ADISC failed, we would have skipped unregistering with
4773 * backend, attempt it now
4775 case NLP_STE_NPR_NODE:
4776 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4779 lpfc_nlp_unreg_node(vport, ndlp);
4786 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4787 int old_state, int new_state)
4789 /* Trap ADISC changes here */
4790 if (new_state == NLP_STE_ADISC_ISSUE ||
4791 old_state == NLP_STE_ADISC_ISSUE) {
4792 lpfc_handle_adisc_state(vport, ndlp, new_state);
4796 if (new_state == NLP_STE_UNMAPPED_NODE) {
4797 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4798 ndlp->nlp_type |= NLP_FC_NODE;
4800 if (new_state == NLP_STE_MAPPED_NODE)
4801 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4802 if (new_state == NLP_STE_NPR_NODE)
4803 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4805 /* Reg/Unreg for FCP and NVME Transport interface */
4806 if ((old_state == NLP_STE_MAPPED_NODE ||
4807 old_state == NLP_STE_UNMAPPED_NODE)) {
4808 /* For nodes marked for ADISC, Handle unreg in ADISC cmpl
4809 * if linkup. In linkdown do unreg_node
4811 if (!(ndlp->nlp_flag & NLP_NPR_ADISC) ||
4812 !lpfc_is_link_up(vport->phba))
4813 lpfc_nlp_unreg_node(vport, ndlp);
4816 if (new_state == NLP_STE_MAPPED_NODE ||
4817 new_state == NLP_STE_UNMAPPED_NODE)
4818 lpfc_nlp_reg_node(vport, ndlp);
4820 if ((new_state == NLP_STE_MAPPED_NODE) &&
4821 (vport->stat_data_enabled)) {
4823 * A new target is discovered, if there is no buffer for
4824 * statistical data collection allocate buffer.
4826 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4827 sizeof(struct lpfc_scsicmd_bkt),
4830 if (!ndlp->lat_data)
4831 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4832 "0286 lpfc_nlp_state_cleanup failed to "
4833 "allocate statistical data buffer DID "
4834 "0x%x\n", ndlp->nlp_DID);
4837 * If the node just added to Mapped list was an FCP target,
4838 * but the remote port registration failed or assigned a target
4839 * id outside the presentable range - move the node to the
4842 if ((new_state == NLP_STE_MAPPED_NODE) &&
4843 (ndlp->nlp_type & NLP_FCP_TARGET) &&
4845 ndlp->rport->scsi_target_id == -1 ||
4846 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4847 spin_lock_irq(&ndlp->lock);
4848 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4849 spin_unlock_irq(&ndlp->lock);
4850 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4855 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4857 static char *states[] = {
4858 [NLP_STE_UNUSED_NODE] = "UNUSED",
4859 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4860 [NLP_STE_ADISC_ISSUE] = "ADISC",
4861 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4862 [NLP_STE_PRLI_ISSUE] = "PRLI",
4863 [NLP_STE_LOGO_ISSUE] = "LOGO",
4864 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4865 [NLP_STE_MAPPED_NODE] = "MAPPED",
4866 [NLP_STE_NPR_NODE] = "NPR",
4869 if (state < NLP_STE_MAX_STATE && states[state])
4870 strlcpy(buffer, states[state], size);
4872 snprintf(buffer, size, "unknown (%d)", state);
4877 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4880 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4881 int old_state = ndlp->nlp_state;
4882 int node_dropped = ndlp->nlp_flag & NLP_DROPPED;
4883 char name1[16], name2[16];
4885 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4886 "0904 NPort state transition x%06x, %s -> %s\n",
4888 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4889 lpfc_nlp_state_name(name2, sizeof(name2), state));
4891 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4892 "node statechg did:x%x old:%d ste:%d",
4893 ndlp->nlp_DID, old_state, state);
4895 if (node_dropped && old_state == NLP_STE_UNUSED_NODE &&
4896 state != NLP_STE_UNUSED_NODE) {
4897 ndlp->nlp_flag &= ~NLP_DROPPED;
4901 if (old_state == NLP_STE_NPR_NODE &&
4902 state != NLP_STE_NPR_NODE)
4903 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4904 if (old_state == NLP_STE_UNMAPPED_NODE) {
4905 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4906 ndlp->nlp_type &= ~NLP_FC_NODE;
4909 if (list_empty(&ndlp->nlp_listp)) {
4910 spin_lock_irq(shost->host_lock);
4911 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4912 spin_unlock_irq(shost->host_lock);
4913 } else if (old_state)
4914 lpfc_nlp_counters(vport, old_state, -1);
4916 ndlp->nlp_state = state;
4917 lpfc_nlp_counters(vport, state, 1);
4918 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4922 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4924 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4926 if (list_empty(&ndlp->nlp_listp)) {
4927 spin_lock_irq(shost->host_lock);
4928 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4929 spin_unlock_irq(shost->host_lock);
4934 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4936 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4938 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4939 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4940 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4941 spin_lock_irq(shost->host_lock);
4942 list_del_init(&ndlp->nlp_listp);
4943 spin_unlock_irq(shost->host_lock);
4944 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4945 NLP_STE_UNUSED_NODE);
4949 * lpfc_initialize_node - Initialize all fields of node object
4950 * @vport: Pointer to Virtual Port object.
4951 * @ndlp: Pointer to FC node object.
4952 * @did: FC_ID of the node.
4954 * This function is always called when node object need to be initialized.
4955 * It initializes all the fields of the node object. Although the reference
4956 * to phba from @ndlp can be obtained indirectly through it's reference to
4957 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4958 * to the life-span of the @ndlp might go beyond the existence of @vport as
4959 * the final release of ndlp is determined by its reference count. And, the
4960 * operation on @ndlp needs the reference to phba.
4963 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4966 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4967 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4968 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
4969 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp);
4971 ndlp->nlp_DID = did;
4972 ndlp->vport = vport;
4973 ndlp->phba = vport->phba;
4974 ndlp->nlp_sid = NLP_NO_SID;
4975 ndlp->nlp_fc4_type = NLP_FC4_NONE;
4976 kref_init(&ndlp->kref);
4977 atomic_set(&ndlp->cmd_pending, 0);
4978 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4979 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4983 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4986 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4987 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4988 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4989 * until ALL other outstanding threads have completed. We check
4990 * that the ndlp not already in the UNUSED state before we proceed.
4992 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4994 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4995 ndlp->nlp_flag |= NLP_DROPPED;
4996 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4997 lpfc_cleanup_vports_rrqs(vport, ndlp);
4998 lpfc_unreg_rpi(vport, ndlp);
5006 * Start / ReStart rescue timer for Discovery / RSCN handling
5009 lpfc_set_disctmo(struct lpfc_vport *vport)
5011 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5012 struct lpfc_hba *phba = vport->phba;
5015 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
5016 /* For FAN, timeout should be greater than edtov */
5017 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
5019 /* Normal discovery timeout should be > than ELS/CT timeout
5020 * FC spec states we need 3 * ratov for CT requests
5022 tmo = ((phba->fc_ratov * 3) + 3);
5026 if (!timer_pending(&vport->fc_disctmo)) {
5027 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5028 "set disc timer: tmo:x%x state:x%x flg:x%x",
5029 tmo, vport->port_state, vport->fc_flag);
5032 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
5033 spin_lock_irq(shost->host_lock);
5034 vport->fc_flag |= FC_DISC_TMO;
5035 spin_unlock_irq(shost->host_lock);
5037 /* Start Discovery Timer state <hba_state> */
5038 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5039 "0247 Start Discovery Timer state x%x "
5040 "Data: x%x x%lx x%x x%x\n",
5041 vport->port_state, tmo,
5042 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
5043 vport->fc_adisc_cnt);
5049 * Cancel rescue timer for Discovery / RSCN handling
5052 lpfc_can_disctmo(struct lpfc_vport *vport)
5054 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5055 unsigned long iflags;
5057 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5058 "can disc timer: state:x%x rtry:x%x flg:x%x",
5059 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5061 /* Turn off discovery timer if its running */
5062 if (vport->fc_flag & FC_DISC_TMO) {
5063 spin_lock_irqsave(shost->host_lock, iflags);
5064 vport->fc_flag &= ~FC_DISC_TMO;
5065 spin_unlock_irqrestore(shost->host_lock, iflags);
5066 del_timer_sync(&vport->fc_disctmo);
5067 spin_lock_irqsave(&vport->work_port_lock, iflags);
5068 vport->work_port_events &= ~WORKER_DISC_TMO;
5069 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
5072 /* Cancel Discovery Timer state <hba_state> */
5073 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5074 "0248 Cancel Discovery Timer state x%x "
5075 "Data: x%x x%x x%x\n",
5076 vport->port_state, vport->fc_flag,
5077 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
5082 * Check specified ring for outstanding IOCB on the SLI queue
5083 * Return true if iocb matches the specified nport
5086 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
5087 struct lpfc_sli_ring *pring,
5088 struct lpfc_iocbq *iocb,
5089 struct lpfc_nodelist *ndlp)
5091 IOCB_t *icmd = &iocb->iocb;
5092 struct lpfc_vport *vport = ndlp->vport;
5094 if (iocb->vport != vport)
5097 if (pring->ringno == LPFC_ELS_RING) {
5098 switch (icmd->ulpCommand) {
5099 case CMD_GEN_REQUEST64_CR:
5100 if (iocb->context_un.ndlp == ndlp)
5103 case CMD_ELS_REQUEST64_CR:
5104 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
5107 case CMD_XMIT_ELS_RSP64_CX:
5108 if (iocb->context1 == (uint8_t *) ndlp)
5111 } else if (pring->ringno == LPFC_FCP_RING) {
5112 /* Skip match check if waiting to relogin to FCP target */
5113 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
5114 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
5117 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
5125 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
5126 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
5127 struct list_head *dequeue_list)
5129 struct lpfc_iocbq *iocb, *next_iocb;
5131 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5132 /* Check to see if iocb matches the nport */
5133 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
5134 /* match, dequeue */
5135 list_move_tail(&iocb->list, dequeue_list);
5140 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
5141 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
5143 struct lpfc_sli *psli = &phba->sli;
5146 spin_lock_irq(&phba->hbalock);
5147 for (i = 0; i < psli->num_rings; i++)
5148 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
5150 spin_unlock_irq(&phba->hbalock);
5154 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
5155 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
5157 struct lpfc_sli_ring *pring;
5158 struct lpfc_queue *qp = NULL;
5160 spin_lock_irq(&phba->hbalock);
5161 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
5165 spin_lock(&pring->ring_lock);
5166 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
5167 spin_unlock(&pring->ring_lock);
5169 spin_unlock_irq(&phba->hbalock);
5173 * Free resources / clean up outstanding I/Os
5174 * associated with nlp_rpi in the LPFC_NODELIST entry.
5177 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5179 LIST_HEAD(completions);
5181 lpfc_fabric_abort_nport(ndlp);
5184 * Everything that matches on txcmplq will be returned
5185 * by firmware with a no rpi error.
5187 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5188 if (phba->sli_rev != LPFC_SLI_REV4)
5189 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
5191 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
5194 /* Cancel all the IOCBs from the completions list */
5195 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5202 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
5203 * @phba: Pointer to HBA context object.
5204 * @pmb: Pointer to mailbox object.
5206 * This function will issue an ELS LOGO command after completing
5210 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5212 struct lpfc_vport *vport = pmb->vport;
5213 struct lpfc_nodelist *ndlp;
5215 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp);
5218 lpfc_issue_els_logo(vport, ndlp, 0);
5219 mempool_free(pmb, phba->mbox_mem_pool);
5221 /* Check to see if there are any deferred events to process */
5222 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
5223 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
5224 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5225 "1434 UNREG cmpl deferred logo x%x "
5226 "on NPort x%x Data: x%x x%px\n",
5227 ndlp->nlp_rpi, ndlp->nlp_DID,
5228 ndlp->nlp_defer_did, ndlp);
5230 ndlp->nlp_flag &= ~NLP_UNREG_INP;
5231 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
5232 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
5234 /* NLP_RELEASE_RPI is only set for SLI4 ports. */
5235 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
5236 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
5237 spin_lock_irq(&ndlp->lock);
5238 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
5239 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
5240 spin_unlock_irq(&ndlp->lock);
5242 spin_lock_irq(&ndlp->lock);
5243 ndlp->nlp_flag &= ~NLP_UNREG_INP;
5244 spin_unlock_irq(&ndlp->lock);
5249 * Sets the mailbox completion handler to be used for the
5250 * unreg_rpi command. The handler varies based on the state of
5251 * the port and what will be happening to the rpi next.
5254 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport,
5255 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox)
5257 unsigned long iflags;
5259 /* Driver always gets a reference on the mailbox job
5260 * in support of async jobs.
5262 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
5263 if (!mbox->ctx_ndlp)
5266 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
5267 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
5269 } else if (phba->sli_rev == LPFC_SLI_REV4 &&
5270 (!(vport->load_flag & FC_UNLOADING)) &&
5271 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
5272 LPFC_SLI_INTF_IF_TYPE_2) &&
5273 (kref_read(&ndlp->kref) > 0)) {
5274 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr;
5276 if (vport->load_flag & FC_UNLOADING) {
5277 if (phba->sli_rev == LPFC_SLI_REV4) {
5278 spin_lock_irqsave(&ndlp->lock, iflags);
5279 ndlp->nlp_flag |= NLP_RELEASE_RPI;
5280 spin_unlock_irqrestore(&ndlp->lock, iflags);
5283 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5288 * Free rpi associated with LPFC_NODELIST entry.
5289 * This routine is called from lpfc_freenode(), when we are removing
5290 * a LPFC_NODELIST entry. It is also called if the driver initiates a
5291 * LOGO that completes successfully, and we are waiting to PLOGI back
5292 * to the remote NPort. In addition, it is called after we receive
5293 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
5294 * we are waiting to PLOGI back to the remote NPort.
5297 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5299 struct lpfc_hba *phba = vport->phba;
5301 int rc, acc_plogi = 1;
5304 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
5305 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
5306 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
5307 lpfc_printf_vlog(vport, KERN_INFO,
5308 LOG_NODE | LOG_DISCOVERY,
5309 "3366 RPI x%x needs to be "
5310 "unregistered nlp_flag x%x "
5312 ndlp->nlp_rpi, ndlp->nlp_flag,
5315 /* If there is already an UNREG in progress for this ndlp,
5316 * no need to queue up another one.
5318 if (ndlp->nlp_flag & NLP_UNREG_INP) {
5319 lpfc_printf_vlog(vport, KERN_INFO,
5320 LOG_NODE | LOG_DISCOVERY,
5321 "1436 unreg_rpi SKIP UNREG x%x on "
5322 "NPort x%x deferred x%x flg x%x "
5324 ndlp->nlp_rpi, ndlp->nlp_DID,
5325 ndlp->nlp_defer_did,
5326 ndlp->nlp_flag, ndlp);
5330 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5332 /* SLI4 ports require the physical rpi value. */
5333 rpi = ndlp->nlp_rpi;
5334 if (phba->sli_rev == LPFC_SLI_REV4)
5335 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
5337 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
5338 mbox->vport = vport;
5339 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox);
5340 if (!mbox->ctx_ndlp) {
5341 mempool_free(mbox, phba->mbox_mem_pool);
5345 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr)
5347 * accept PLOGIs after unreg_rpi_cmpl
5350 if (((ndlp->nlp_DID & Fabric_DID_MASK) !=
5352 (!(vport->fc_flag & FC_OFFLINE_MODE)))
5353 ndlp->nlp_flag |= NLP_UNREG_INP;
5355 lpfc_printf_vlog(vport, KERN_INFO,
5356 LOG_NODE | LOG_DISCOVERY,
5357 "1433 unreg_rpi UNREG x%x on "
5358 "NPort x%x deferred flg x%x "
5360 ndlp->nlp_rpi, ndlp->nlp_DID,
5361 ndlp->nlp_flag, ndlp);
5363 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5364 if (rc == MBX_NOT_FINISHED) {
5365 ndlp->nlp_flag &= ~NLP_UNREG_INP;
5366 mempool_free(mbox, phba->mbox_mem_pool);
5370 lpfc_printf_vlog(vport, KERN_INFO,
5371 LOG_NODE | LOG_DISCOVERY,
5372 "1444 Failed to allocate mempool "
5373 "unreg_rpi UNREG x%x, "
5374 "DID x%x, flag x%x, "
5376 ndlp->nlp_rpi, ndlp->nlp_DID,
5377 ndlp->nlp_flag, ndlp);
5379 /* Because mempool_alloc failed, we
5380 * will issue a LOGO here and keep the rpi alive if
5383 if (!(vport->load_flag & FC_UNLOADING)) {
5384 ndlp->nlp_flag &= ~NLP_UNREG_INP;
5385 lpfc_issue_els_logo(vport, ndlp, 0);
5386 ndlp->nlp_prev_state = ndlp->nlp_state;
5387 lpfc_nlp_set_state(vport, ndlp,
5393 lpfc_no_rpi(phba, ndlp);
5395 if (phba->sli_rev != LPFC_SLI_REV4)
5397 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
5398 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5400 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
5403 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
5408 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
5409 * @phba: pointer to lpfc hba data structure.
5411 * This routine is invoked to unregister all the currently registered RPIs
5415 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
5417 struct lpfc_vport **vports;
5418 struct lpfc_nodelist *ndlp;
5419 struct Scsi_Host *shost;
5422 vports = lpfc_create_vport_work_array(phba);
5424 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5425 "2884 Vport array allocation failed \n");
5428 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5429 shost = lpfc_shost_from_vport(vports[i]);
5430 spin_lock_irq(shost->host_lock);
5431 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5432 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5433 /* The mempool_alloc might sleep */
5434 spin_unlock_irq(shost->host_lock);
5435 lpfc_unreg_rpi(vports[i], ndlp);
5436 spin_lock_irq(shost->host_lock);
5439 spin_unlock_irq(shost->host_lock);
5441 lpfc_destroy_vport_work_array(phba, vports);
5445 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
5447 struct lpfc_hba *phba = vport->phba;
5451 if (phba->sli_rev == LPFC_SLI_REV4) {
5452 lpfc_sli4_unreg_all_rpis(vport);
5456 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5458 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
5460 mbox->vport = vport;
5461 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5462 mbox->ctx_ndlp = NULL;
5463 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
5464 if (rc != MBX_TIMEOUT)
5465 mempool_free(mbox, phba->mbox_mem_pool);
5467 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
5468 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
5469 "1836 Could not issue "
5470 "unreg_login(all_rpis) status %d\n",
5476 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
5478 struct lpfc_hba *phba = vport->phba;
5482 /* Unreg DID is an SLI3 operation. */
5483 if (phba->sli_rev > LPFC_SLI_REV3)
5486 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5488 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
5490 mbox->vport = vport;
5491 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5492 mbox->ctx_ndlp = NULL;
5493 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
5494 if (rc != MBX_TIMEOUT)
5495 mempool_free(mbox, phba->mbox_mem_pool);
5497 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
5498 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
5499 "1815 Could not issue "
5500 "unreg_did (default rpis) status %d\n",
5506 * Free resources associated with LPFC_NODELIST entry
5507 * so it can be freed.
5510 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5512 struct lpfc_hba *phba = vport->phba;
5513 LPFC_MBOXQ_t *mb, *nextmb;
5514 struct lpfc_dmabuf *mp;
5516 /* Cleanup node for NPort <nlp_DID> */
5517 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5518 "0900 Cleanup node for NPort x%x "
5519 "Data: x%x x%x x%x\n",
5520 ndlp->nlp_DID, ndlp->nlp_flag,
5521 ndlp->nlp_state, ndlp->nlp_rpi);
5522 lpfc_dequeue_node(vport, ndlp);
5524 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
5526 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
5527 if ((mb = phba->sli.mbox_active)) {
5528 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5529 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5530 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5531 mb->ctx_ndlp = NULL;
5532 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5536 spin_lock_irq(&phba->hbalock);
5537 /* Cleanup REG_LOGIN completions which are not yet processed */
5538 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
5539 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
5540 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
5541 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp))
5544 mb->ctx_ndlp = NULL;
5545 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5548 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
5549 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5550 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5551 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5552 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
5554 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
5557 list_del(&mb->list);
5558 mempool_free(mb, phba->mbox_mem_pool);
5559 /* We shall not invoke the lpfc_nlp_put to decrement
5560 * the ndlp reference count as we are in the process
5561 * of lpfc_nlp_release.
5565 spin_unlock_irq(&phba->hbalock);
5567 lpfc_els_abort(phba, ndlp);
5569 spin_lock_irq(&ndlp->lock);
5570 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
5571 spin_unlock_irq(&ndlp->lock);
5573 ndlp->nlp_last_elscmd = 0;
5574 del_timer_sync(&ndlp->nlp_delayfunc);
5576 list_del_init(&ndlp->els_retry_evt.evt_listp);
5577 list_del_init(&ndlp->dev_loss_evt.evt_listp);
5578 list_del_init(&ndlp->recovery_evt.evt_listp);
5579 lpfc_cleanup_vports_rrqs(vport, ndlp);
5581 if (phba->sli_rev == LPFC_SLI_REV4)
5582 ndlp->nlp_flag |= NLP_RELEASE_RPI;
5588 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5591 D_ID mydid, ndlpdid, matchdid;
5593 if (did == Bcast_DID)
5596 /* First check for Direct match */
5597 if (ndlp->nlp_DID == did)
5600 /* Next check for area/domain identically equals 0 match */
5601 mydid.un.word = vport->fc_myDID;
5602 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
5606 matchdid.un.word = did;
5607 ndlpdid.un.word = ndlp->nlp_DID;
5608 if (matchdid.un.b.id == ndlpdid.un.b.id) {
5609 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
5610 (mydid.un.b.area == matchdid.un.b.area)) {
5611 /* This code is supposed to match the ID
5612 * for a private loop device that is
5613 * connect to fl_port. But we need to
5614 * check that the port did not just go
5615 * from pt2pt to fabric or we could end
5616 * up matching ndlp->nlp_DID 000001 to
5617 * fabric DID 0x20101
5619 if ((ndlpdid.un.b.domain == 0) &&
5620 (ndlpdid.un.b.area == 0)) {
5621 if (ndlpdid.un.b.id &&
5622 vport->phba->fc_topology ==
5629 matchdid.un.word = ndlp->nlp_DID;
5630 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
5631 (mydid.un.b.area == ndlpdid.un.b.area)) {
5632 if ((matchdid.un.b.domain == 0) &&
5633 (matchdid.un.b.area == 0)) {
5634 if (matchdid.un.b.id)
5642 /* Search for a nodelist entry */
5643 static struct lpfc_nodelist *
5644 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5646 struct lpfc_nodelist *ndlp;
5649 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5650 if (lpfc_matchdid(vport, ndlp, did)) {
5651 data1 = (((uint32_t)ndlp->nlp_state << 24) |
5652 ((uint32_t)ndlp->nlp_xri << 16) |
5653 ((uint32_t)ndlp->nlp_type << 8)
5655 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5656 "0929 FIND node DID "
5657 "Data: x%px x%x x%x x%x x%x x%px\n",
5658 ndlp, ndlp->nlp_DID,
5659 ndlp->nlp_flag, data1, ndlp->nlp_rpi,
5660 ndlp->active_rrqs_xri_bitmap);
5665 /* FIND node did <did> NOT FOUND */
5666 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5667 "0932 FIND node did x%x NOT FOUND.\n", did);
5671 struct lpfc_nodelist *
5672 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5674 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5675 struct lpfc_nodelist *ndlp;
5676 unsigned long iflags;
5678 spin_lock_irqsave(shost->host_lock, iflags);
5679 ndlp = __lpfc_findnode_did(vport, did);
5680 spin_unlock_irqrestore(shost->host_lock, iflags);
5684 struct lpfc_nodelist *
5685 lpfc_findnode_mapped(struct lpfc_vport *vport)
5687 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5688 struct lpfc_nodelist *ndlp;
5690 unsigned long iflags;
5692 spin_lock_irqsave(shost->host_lock, iflags);
5694 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5695 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
5696 ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
5697 data1 = (((uint32_t)ndlp->nlp_state << 24) |
5698 ((uint32_t)ndlp->nlp_xri << 16) |
5699 ((uint32_t)ndlp->nlp_type << 8) |
5700 ((uint32_t)ndlp->nlp_rpi & 0xff));
5701 spin_unlock_irqrestore(shost->host_lock, iflags);
5702 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5703 "2025 FIND node DID "
5704 "Data: x%px x%x x%x x%x x%px\n",
5705 ndlp, ndlp->nlp_DID,
5706 ndlp->nlp_flag, data1,
5707 ndlp->active_rrqs_xri_bitmap);
5711 spin_unlock_irqrestore(shost->host_lock, iflags);
5713 /* FIND node did <did> NOT FOUND */
5714 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5715 "2026 FIND mapped did NOT FOUND.\n");
5719 struct lpfc_nodelist *
5720 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
5722 struct lpfc_nodelist *ndlp;
5724 ndlp = lpfc_findnode_did(vport, did);
5726 if (vport->phba->nvmet_support)
5728 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
5729 lpfc_rscn_payload_check(vport, did) == 0)
5731 ndlp = lpfc_nlp_init(vport, did);
5734 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5736 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5737 "6453 Setup New Node 2B_DISC x%x "
5738 "Data:x%x x%x x%x\n",
5739 ndlp->nlp_DID, ndlp->nlp_flag,
5740 ndlp->nlp_state, vport->fc_flag);
5742 spin_lock_irq(&ndlp->lock);
5743 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5744 spin_unlock_irq(&ndlp->lock);
5748 /* The NVME Target does not want to actively manage an rport.
5749 * The goal is to allow the target to reset its state and clear
5750 * pending IO in preparation for the initiator to recover.
5752 if ((vport->fc_flag & FC_RSCN_MODE) &&
5753 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
5754 if (lpfc_rscn_payload_check(vport, did)) {
5756 /* Since this node is marked for discovery,
5757 * delay timeout is not needed.
5759 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5761 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5762 "6455 Setup RSCN Node 2B_DISC x%x "
5763 "Data:x%x x%x x%x\n",
5764 ndlp->nlp_DID, ndlp->nlp_flag,
5765 ndlp->nlp_state, vport->fc_flag);
5767 /* NVME Target mode waits until rport is known to be
5768 * impacted by the RSCN before it transitions. No
5769 * active management - just go to NPR provided the
5770 * node had a valid login.
5772 if (vport->phba->nvmet_support)
5775 /* If we've already received a PLOGI from this NPort
5776 * we don't need to try to discover it again.
5778 if (ndlp->nlp_flag & NLP_RCV_PLOGI &&
5780 (NLP_FCP_TARGET | NLP_NVME_TARGET)))
5783 ndlp->nlp_prev_state = ndlp->nlp_state;
5784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5786 spin_lock_irq(&ndlp->lock);
5787 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5788 spin_unlock_irq(&ndlp->lock);
5790 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5791 "6456 Skip Setup RSCN Node x%x "
5792 "Data:x%x x%x x%x\n",
5793 ndlp->nlp_DID, ndlp->nlp_flag,
5794 ndlp->nlp_state, vport->fc_flag);
5798 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5799 "6457 Setup Active Node 2B_DISC x%x "
5800 "Data:x%x x%x x%x\n",
5801 ndlp->nlp_DID, ndlp->nlp_flag,
5802 ndlp->nlp_state, vport->fc_flag);
5804 /* If the initiator received a PLOGI from this NPort or if the
5805 * initiator is already in the process of discovery on it,
5806 * there's no need to try to discover it again.
5808 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
5809 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5810 (!vport->phba->nvmet_support &&
5811 ndlp->nlp_flag & NLP_RCV_PLOGI))
5814 if (vport->phba->nvmet_support)
5817 /* Moving to NPR state clears unsolicited flags and
5818 * allows for rediscovery
5820 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5822 spin_lock_irq(&ndlp->lock);
5823 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5824 spin_unlock_irq(&ndlp->lock);
5829 /* Build a list of nodes to discover based on the loopmap */
5831 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
5833 struct lpfc_hba *phba = vport->phba;
5835 uint32_t alpa, index;
5837 if (!lpfc_is_link_up(phba))
5840 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5843 /* Check for loop map present or not */
5844 if (phba->alpa_map[0]) {
5845 for (j = 1; j <= phba->alpa_map[0]; j++) {
5846 alpa = phba->alpa_map[j];
5847 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5849 lpfc_setup_disc_node(vport, alpa);
5852 /* No alpamap, so try all alpa's */
5853 for (j = 0; j < FC_MAXLOOP; j++) {
5854 /* If cfg_scan_down is set, start from highest
5855 * ALPA (0xef) to lowest (0x1).
5857 if (vport->cfg_scan_down)
5860 index = FC_MAXLOOP - j - 1;
5861 alpa = lpfcAlpaArray[index];
5862 if ((vport->fc_myDID & 0xff) == alpa)
5864 lpfc_setup_disc_node(vport, alpa);
5872 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5875 struct lpfc_sli *psli = &phba->sli;
5876 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
5877 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
5881 * if it's not a physical port or if we already send
5882 * clear_la then don't send it.
5884 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5885 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5886 (phba->sli_rev == LPFC_SLI_REV4))
5889 /* Link up discovery */
5890 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5891 phba->link_state = LPFC_CLEAR_LA;
5892 lpfc_clear_la(phba, mbox);
5893 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5894 mbox->vport = vport;
5895 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5896 if (rc == MBX_NOT_FINISHED) {
5897 mempool_free(mbox, phba->mbox_mem_pool);
5898 lpfc_disc_flush_list(vport);
5899 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5900 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5901 phba->link_state = LPFC_HBA_ERROR;
5906 /* Reg_vpi to tell firmware to resume normal operations */
5908 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5910 LPFC_MBOXQ_t *regvpimbox;
5912 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5914 lpfc_reg_vpi(vport, regvpimbox);
5915 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5916 regvpimbox->vport = vport;
5917 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5918 == MBX_NOT_FINISHED) {
5919 mempool_free(regvpimbox, phba->mbox_mem_pool);
5924 /* Start Link up / RSCN discovery on NPR nodes */
5926 lpfc_disc_start(struct lpfc_vport *vport)
5928 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5929 struct lpfc_hba *phba = vport->phba;
5931 uint32_t clear_la_pending;
5933 if (!lpfc_is_link_up(phba)) {
5934 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5935 "3315 Link is not up %x\n",
5940 if (phba->link_state == LPFC_CLEAR_LA)
5941 clear_la_pending = 1;
5943 clear_la_pending = 0;
5945 if (vport->port_state < LPFC_VPORT_READY)
5946 vport->port_state = LPFC_DISC_AUTH;
5948 lpfc_set_disctmo(vport);
5950 vport->fc_prevDID = vport->fc_myDID;
5951 vport->num_disc_nodes = 0;
5953 /* Start Discovery state <hba_state> */
5954 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5955 "0202 Start Discovery port state x%x "
5956 "flg x%x Data: x%x x%x x%x\n",
5957 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5958 vport->fc_adisc_cnt, vport->fc_npr_cnt);
5960 /* First do ADISCs - if any */
5961 num_sent = lpfc_els_disc_adisc(vport);
5966 /* Register the VPI for SLI3, NPIV only. */
5967 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5968 !(vport->fc_flag & FC_PT2PT) &&
5969 !(vport->fc_flag & FC_RSCN_MODE) &&
5970 (phba->sli_rev < LPFC_SLI_REV4)) {
5971 lpfc_issue_clear_la(phba, vport);
5972 lpfc_issue_reg_vpi(phba, vport);
5977 * For SLI2, we need to set port_state to READY and continue
5980 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5981 /* If we get here, there is nothing to ADISC */
5982 lpfc_issue_clear_la(phba, vport);
5984 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5985 vport->num_disc_nodes = 0;
5986 /* go thru NPR nodes and issue ELS PLOGIs */
5987 if (vport->fc_npr_cnt)
5988 lpfc_els_disc_plogi(vport);
5990 if (!vport->num_disc_nodes) {
5991 spin_lock_irq(shost->host_lock);
5992 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5993 spin_unlock_irq(shost->host_lock);
5994 lpfc_can_disctmo(vport);
5997 vport->port_state = LPFC_VPORT_READY;
5999 /* Next do PLOGIs - if any */
6000 num_sent = lpfc_els_disc_plogi(vport);
6005 if (vport->fc_flag & FC_RSCN_MODE) {
6006 /* Check to see if more RSCNs came in while we
6007 * were processing this one.
6009 if ((vport->fc_rscn_id_cnt == 0) &&
6010 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
6011 spin_lock_irq(shost->host_lock);
6012 vport->fc_flag &= ~FC_RSCN_MODE;
6013 spin_unlock_irq(shost->host_lock);
6014 lpfc_can_disctmo(vport);
6016 lpfc_els_handle_rscn(vport);
6023 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
6024 * ring the match the sppecified nodelist.
6027 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
6029 LIST_HEAD(completions);
6031 struct lpfc_iocbq *iocb, *next_iocb;
6032 struct lpfc_sli_ring *pring;
6034 pring = lpfc_phba_elsring(phba);
6035 if (unlikely(!pring))
6038 /* Error matching iocb on txq or txcmplq
6039 * First check the txq.
6041 spin_lock_irq(&phba->hbalock);
6042 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6043 if (iocb->context1 != ndlp) {
6047 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
6048 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
6050 list_move_tail(&iocb->list, &completions);
6054 /* Next check the txcmplq */
6055 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
6056 if (iocb->context1 != ndlp) {
6060 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
6061 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
6062 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
6065 spin_unlock_irq(&phba->hbalock);
6067 /* Make sure HBA is alive */
6068 lpfc_issue_hb_tmo(phba);
6070 /* Cancel all the IOCBs from the completions list */
6071 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6076 lpfc_disc_flush_list(struct lpfc_vport *vport)
6078 struct lpfc_nodelist *ndlp, *next_ndlp;
6079 struct lpfc_hba *phba = vport->phba;
6081 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
6082 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
6084 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
6085 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
6086 lpfc_free_tx(phba, ndlp);
6093 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
6095 lpfc_els_flush_rscn(vport);
6096 lpfc_els_flush_cmd(vport);
6097 lpfc_disc_flush_list(vport);
6100 /*****************************************************************************/
6102 * NAME: lpfc_disc_timeout
6104 * FUNCTION: Fibre Channel driver discovery timeout routine.
6106 * EXECUTION ENVIRONMENT: interrupt only
6114 /*****************************************************************************/
6116 lpfc_disc_timeout(struct timer_list *t)
6118 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
6119 struct lpfc_hba *phba = vport->phba;
6120 uint32_t tmo_posted;
6121 unsigned long flags = 0;
6123 if (unlikely(!phba))
6126 spin_lock_irqsave(&vport->work_port_lock, flags);
6127 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
6129 vport->work_port_events |= WORKER_DISC_TMO;
6130 spin_unlock_irqrestore(&vport->work_port_lock, flags);
6133 lpfc_worker_wake_up(phba);
6138 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
6140 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6141 struct lpfc_hba *phba = vport->phba;
6142 struct lpfc_sli *psli = &phba->sli;
6143 struct lpfc_nodelist *ndlp, *next_ndlp;
6144 LPFC_MBOXQ_t *initlinkmbox;
6145 int rc, clrlaerr = 0;
6147 if (!(vport->fc_flag & FC_DISC_TMO))
6150 spin_lock_irq(shost->host_lock);
6151 vport->fc_flag &= ~FC_DISC_TMO;
6152 spin_unlock_irq(shost->host_lock);
6154 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6155 "disc timeout: state:x%x rtry:x%x flg:x%x",
6156 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
6158 switch (vport->port_state) {
6160 case LPFC_LOCAL_CFG_LINK:
6162 * port_state is identically LPFC_LOCAL_CFG_LINK while
6163 * waiting for FAN timeout
6165 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
6166 "0221 FAN timeout\n");
6168 /* Start discovery by sending FLOGI, clean up old rpis */
6169 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
6171 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
6173 if (ndlp->nlp_type & NLP_FABRIC) {
6174 /* Clean up the ndlp on Fabric connections */
6175 lpfc_drop_node(vport, ndlp);
6177 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
6178 /* Fail outstanding IO now since device
6179 * is marked for PLOGI.
6181 lpfc_unreg_rpi(vport, ndlp);
6184 if (vport->port_state != LPFC_FLOGI) {
6185 if (phba->sli_rev <= LPFC_SLI_REV3)
6186 lpfc_initial_flogi(vport);
6188 lpfc_issue_init_vfi(vport);
6195 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
6196 /* Initial FLOGI timeout */
6197 lpfc_printf_vlog(vport, KERN_ERR,
6199 "0222 Initial %s timeout\n",
6200 vport->vpi ? "FDISC" : "FLOGI");
6202 /* Assume no Fabric and go on with discovery.
6203 * Check for outstanding ELS FLOGI to abort.
6206 /* FLOGI failed, so just use loop map to make discovery list */
6207 lpfc_disc_list_loopmap(vport);
6209 /* Start discovery */
6210 lpfc_disc_start(vport);
6213 case LPFC_FABRIC_CFG_LINK:
6214 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
6216 lpfc_printf_vlog(vport, KERN_ERR,
6218 "0223 Timeout while waiting for "
6219 "NameServer login\n");
6220 /* Next look for NameServer ndlp */
6221 ndlp = lpfc_findnode_did(vport, NameServer_DID);
6223 lpfc_els_abort(phba, ndlp);
6225 /* ReStart discovery */
6229 /* Check for wait for NameServer Rsp timeout */
6230 lpfc_printf_vlog(vport, KERN_ERR,
6232 "0224 NameServer Query timeout "
6234 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
6236 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
6237 /* Try it one more time */
6238 vport->fc_ns_retry++;
6239 vport->gidft_inp = 0;
6240 rc = lpfc_issue_gidft(vport);
6244 vport->fc_ns_retry = 0;
6248 * Discovery is over.
6249 * set port_state to PORT_READY if SLI2.
6250 * cmpl_reg_vpi will set port_state to READY for SLI3.
6252 if (phba->sli_rev < LPFC_SLI_REV4) {
6253 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
6254 lpfc_issue_reg_vpi(phba, vport);
6256 lpfc_issue_clear_la(phba, vport);
6257 vport->port_state = LPFC_VPORT_READY;
6261 /* Setup and issue mailbox INITIALIZE LINK command */
6262 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6263 if (!initlinkmbox) {
6264 lpfc_printf_vlog(vport, KERN_ERR,
6266 "0206 Device Discovery "
6267 "completion error\n");
6268 phba->link_state = LPFC_HBA_ERROR;
6272 lpfc_linkdown(phba);
6273 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
6274 phba->cfg_link_speed);
6275 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6276 initlinkmbox->vport = vport;
6277 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6278 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
6279 lpfc_set_loopback_flag(phba);
6280 if (rc == MBX_NOT_FINISHED)
6281 mempool_free(initlinkmbox, phba->mbox_mem_pool);
6285 case LPFC_DISC_AUTH:
6286 /* Node Authentication timeout */
6287 lpfc_printf_vlog(vport, KERN_ERR,
6289 "0227 Node Authentication timeout\n");
6290 lpfc_disc_flush_list(vport);
6293 * set port_state to PORT_READY if SLI2.
6294 * cmpl_reg_vpi will set port_state to READY for SLI3.
6296 if (phba->sli_rev < LPFC_SLI_REV4) {
6297 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
6298 lpfc_issue_reg_vpi(phba, vport);
6299 else { /* NPIV Not enabled */
6300 lpfc_issue_clear_la(phba, vport);
6301 vport->port_state = LPFC_VPORT_READY;
6306 case LPFC_VPORT_READY:
6307 if (vport->fc_flag & FC_RSCN_MODE) {
6308 lpfc_printf_vlog(vport, KERN_ERR,
6310 "0231 RSCN timeout Data: x%x "
6312 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
6314 /* Cleanup any outstanding ELS commands */
6315 lpfc_els_flush_cmd(vport);
6317 lpfc_els_flush_rscn(vport);
6318 lpfc_disc_flush_list(vport);
6323 lpfc_printf_vlog(vport, KERN_ERR,
6325 "0273 Unexpected discovery timeout, "
6326 "vport State x%x\n", vport->port_state);
6330 switch (phba->link_state) {
6332 /* CLEAR LA timeout */
6333 lpfc_printf_vlog(vport, KERN_ERR,
6335 "0228 CLEAR LA timeout\n");
6340 lpfc_issue_clear_la(phba, vport);
6342 case LPFC_LINK_UNKNOWN:
6343 case LPFC_WARM_START:
6344 case LPFC_INIT_START:
6345 case LPFC_INIT_MBX_CMDS:
6346 case LPFC_LINK_DOWN:
6347 case LPFC_HBA_ERROR:
6348 lpfc_printf_vlog(vport, KERN_ERR,
6350 "0230 Unexpected timeout, hba link "
6351 "state x%x\n", phba->link_state);
6355 case LPFC_HBA_READY:
6360 lpfc_disc_flush_list(vport);
6361 if (phba->sli_rev != LPFC_SLI_REV4) {
6362 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
6363 ~LPFC_STOP_IOCB_EVENT;
6364 psli->sli3_ring[LPFC_FCP_RING].flag &=
6365 ~LPFC_STOP_IOCB_EVENT;
6367 vport->port_state = LPFC_VPORT_READY;
6373 * This routine handles processing a NameServer REG_LOGIN mailbox
6374 * command upon completion. It is setup in the LPFC_MBOXQ
6375 * as the completion routine when the command is
6376 * handed off to the SLI layer.
6379 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6381 MAILBOX_t *mb = &pmb->u.mb;
6382 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
6383 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
6384 struct lpfc_vport *vport = pmb->vport;
6386 pmb->ctx_buf = NULL;
6387 pmb->ctx_ndlp = NULL;
6389 if (phba->sli_rev < LPFC_SLI_REV4)
6390 ndlp->nlp_rpi = mb->un.varWords[0];
6391 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
6392 ndlp->nlp_type |= NLP_FABRIC;
6393 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
6394 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
6395 "0004 rpi:%x DID:%x flg:%x %d x%px\n",
6396 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
6397 kref_read(&ndlp->kref),
6400 * Start issuing Fabric-Device Management Interface (FDMI) command to
6401 * 0xfffffa (FDMI well known port).
6402 * DHBA -> DPRT -> RHBA -> RPA (physical port)
6403 * DPRT -> RPRT (vports)
6405 if (vport->port_type == LPFC_PHYSICAL_PORT) {
6406 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */
6407 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
6409 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
6413 /* decrement the node reference count held for this callback
6417 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6419 mempool_free(pmb, phba->mbox_mem_pool);
6425 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
6427 uint16_t *rpi = param;
6429 return ndlp->nlp_rpi == *rpi;
6433 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
6435 return memcmp(&ndlp->nlp_portname, param,
6436 sizeof(ndlp->nlp_portname)) == 0;
6439 static struct lpfc_nodelist *
6440 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
6442 struct lpfc_nodelist *ndlp;
6444 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6445 if (filter(ndlp, param)) {
6446 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6447 "3185 FIND node filter %ps DID "
6448 "ndlp x%px did x%x flg x%x st x%x "
6449 "xri x%x type x%x rpi x%x\n",
6450 filter, ndlp, ndlp->nlp_DID,
6451 ndlp->nlp_flag, ndlp->nlp_state,
6452 ndlp->nlp_xri, ndlp->nlp_type,
6457 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6458 "3186 FIND node filter %ps NOT FOUND.\n", filter);
6463 * This routine looks up the ndlp lists for the given RPI. If rpi found it
6464 * returns the node list element pointer else return NULL.
6466 struct lpfc_nodelist *
6467 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6469 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
6473 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
6474 * returns the node element list pointer else return NULL.
6476 struct lpfc_nodelist *
6477 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
6479 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6480 struct lpfc_nodelist *ndlp;
6482 spin_lock_irq(shost->host_lock);
6483 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
6484 spin_unlock_irq(shost->host_lock);
6489 * This routine looks up the ndlp lists for the given RPI. If the rpi
6490 * is found, the routine returns the node element list pointer else
6493 struct lpfc_nodelist *
6494 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6496 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6497 struct lpfc_nodelist *ndlp;
6498 unsigned long flags;
6500 spin_lock_irqsave(shost->host_lock, flags);
6501 ndlp = __lpfc_findnode_rpi(vport, rpi);
6502 spin_unlock_irqrestore(shost->host_lock, flags);
6507 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
6508 * @phba: pointer to lpfc hba data structure.
6509 * @vpi: the physical host virtual N_Port identifier.
6511 * This routine finds a vport on a HBA (referred by @phba) through a
6512 * @vpi. The function walks the HBA's vport list and returns the address
6513 * of the vport with the matching @vpi.
6516 * NULL - No vport with the matching @vpi found
6517 * Otherwise - Address to the vport with the matching @vpi.
6520 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
6522 struct lpfc_vport *vport;
6523 unsigned long flags;
6526 /* The physical ports are always vpi 0 - translate is unnecessary. */
6529 * Translate the physical vpi to the logical vpi. The
6530 * vport stores the logical vpi.
6532 for (i = 0; i <= phba->max_vpi; i++) {
6533 if (vpi == phba->vpi_ids[i])
6537 if (i > phba->max_vpi) {
6538 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6539 "2936 Could not find Vport mapped "
6540 "to vpi %d\n", vpi);
6545 spin_lock_irqsave(&phba->port_list_lock, flags);
6546 list_for_each_entry(vport, &phba->port_list, listentry) {
6547 if (vport->vpi == i) {
6548 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6552 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6556 struct lpfc_nodelist *
6557 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
6559 struct lpfc_nodelist *ndlp;
6560 int rpi = LPFC_RPI_ALLOC_ERROR;
6562 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6563 rpi = lpfc_sli4_alloc_rpi(vport->phba);
6564 if (rpi == LPFC_RPI_ALLOC_ERROR)
6568 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
6570 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6571 lpfc_sli4_free_rpi(vport->phba, rpi);
6575 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
6577 spin_lock_init(&ndlp->lock);
6579 lpfc_initialize_node(vport, ndlp, did);
6580 INIT_LIST_HEAD(&ndlp->nlp_listp);
6581 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6582 ndlp->nlp_rpi = rpi;
6583 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
6584 "0007 Init New ndlp x%px, rpi:x%x DID:%x "
6585 "flg:x%x refcnt:%d\n",
6586 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID,
6587 ndlp->nlp_flag, kref_read(&ndlp->kref));
6589 ndlp->active_rrqs_xri_bitmap =
6590 mempool_alloc(vport->phba->active_rrq_pool,
6592 if (ndlp->active_rrqs_xri_bitmap)
6593 memset(ndlp->active_rrqs_xri_bitmap, 0,
6594 ndlp->phba->cfg_rrq_xri_bitmap_sz);
6599 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
6600 "node init: did:x%x",
6601 ndlp->nlp_DID, 0, 0);
6606 /* This routine releases all resources associated with a specifc NPort's ndlp
6607 * and mempool_free's the nodelist.
6610 lpfc_nlp_release(struct kref *kref)
6612 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
6614 struct lpfc_vport *vport = ndlp->vport;
6616 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6617 "node release: did:x%x flg:x%x type:x%x",
6618 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
6620 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6621 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n",
6622 __func__, ndlp, ndlp->nlp_DID,
6623 kref_read(&ndlp->kref), ndlp->nlp_rpi);
6625 /* remove ndlp from action. */
6626 lpfc_cancel_retry_delay_tmo(vport, ndlp);
6627 lpfc_cleanup_node(vport, ndlp);
6629 /* Not all ELS transactions have registered the RPI with the port.
6630 * In these cases the rpi usage is temporary and the node is
6631 * released when the WQE is completed. Catch this case to free the
6632 * RPI to the pool. Because this node is in the release path, a lock
6633 * is unnecessary. All references are gone and the node has been
6636 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
6637 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR &&
6638 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) {
6639 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
6640 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
6644 /* The node is not freed back to memory, it is released to a pool so
6645 * the node fields need to be cleaned up.
6648 ndlp->nlp_state = NLP_STE_FREED_NODE;
6650 ndlp->fc4_xpt_flags = 0;
6652 /* free ndlp memory for final ndlp release */
6653 kfree(ndlp->lat_data);
6654 if (ndlp->phba->sli_rev == LPFC_SLI_REV4)
6655 mempool_free(ndlp->active_rrqs_xri_bitmap,
6656 ndlp->phba->active_rrq_pool);
6657 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
6660 /* This routine bumps the reference count for a ndlp structure to ensure
6661 * that one discovery thread won't free a ndlp while another discovery thread
6664 struct lpfc_nodelist *
6665 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
6667 unsigned long flags;
6670 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6671 "node get: did:x%x flg:x%x refcnt:x%x",
6672 ndlp->nlp_DID, ndlp->nlp_flag,
6673 kref_read(&ndlp->kref));
6675 /* The check of ndlp usage to prevent incrementing the
6676 * ndlp reference count that is in the process of being
6679 spin_lock_irqsave(&ndlp->lock, flags);
6680 if (!kref_get_unless_zero(&ndlp->kref)) {
6681 spin_unlock_irqrestore(&ndlp->lock, flags);
6682 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6683 "0276 %s: ndlp:x%px refcnt:%d\n",
6684 __func__, (void *)ndlp, kref_read(&ndlp->kref));
6687 spin_unlock_irqrestore(&ndlp->lock, flags);
6689 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__);
6695 /* This routine decrements the reference count for a ndlp structure. If the
6696 * count goes to 0, this indicates the associated nodelist should be freed.
6699 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
6702 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6703 "node put: did:x%x flg:x%x refcnt:x%x",
6704 ndlp->nlp_DID, ndlp->nlp_flag,
6705 kref_read(&ndlp->kref));
6707 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__);
6710 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
6713 /* This routine free's the specified nodelist if it is not in use
6714 * by any other discovery thread. This routine returns 1 if the
6715 * ndlp has been freed. A return value of 0 indicates the ndlp is
6716 * not yet been released.
6719 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
6721 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6722 "node not used: did:x%x flg:x%x refcnt:x%x",
6723 ndlp->nlp_DID, ndlp->nlp_flag,
6724 kref_read(&ndlp->kref));
6726 if (kref_read(&ndlp->kref) == 1)
6727 if (lpfc_nlp_put(ndlp))
6733 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6734 * @phba: Pointer to hba context object.
6736 * This function iterate through all FC nodes associated
6737 * will all vports to check if there is any node with
6738 * fc_rports associated with it. If there is an fc_rport
6739 * associated with the node, then the node is either in
6740 * discovered state or its devloss_timer is pending.
6743 lpfc_fcf_inuse(struct lpfc_hba *phba)
6745 struct lpfc_vport **vports;
6747 struct lpfc_nodelist *ndlp;
6748 struct Scsi_Host *shost;
6750 vports = lpfc_create_vport_work_array(phba);
6752 /* If driver cannot allocate memory, indicate fcf is in use */
6756 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6757 shost = lpfc_shost_from_vport(vports[i]);
6758 spin_lock_irq(shost->host_lock);
6760 * IF the CVL_RCVD bit is not set then we have sent the
6762 * If dev_loss fires while we are waiting we do not want to
6765 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
6766 spin_unlock_irq(shost->host_lock);
6770 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
6772 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
6774 spin_unlock_irq(shost->host_lock);
6776 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
6778 lpfc_printf_log(phba, KERN_INFO,
6779 LOG_NODE | LOG_DISCOVERY,
6780 "2624 RPI %x DID %x flag %x "
6781 "still logged in\n",
6782 ndlp->nlp_rpi, ndlp->nlp_DID,
6786 spin_unlock_irq(shost->host_lock);
6789 lpfc_destroy_vport_work_array(phba, vports);
6794 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6795 * @phba: Pointer to hba context object.
6796 * @mboxq: Pointer to mailbox object.
6798 * This function frees memory associated with the mailbox command.
6801 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6803 struct lpfc_vport *vport = mboxq->vport;
6804 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6806 if (mboxq->u.mb.mbxStatus) {
6807 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6808 "2555 UNREG_VFI mbxStatus error x%x "
6810 mboxq->u.mb.mbxStatus, vport->port_state);
6812 spin_lock_irq(shost->host_lock);
6813 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
6814 spin_unlock_irq(shost->host_lock);
6815 mempool_free(mboxq, phba->mbox_mem_pool);
6820 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6821 * @phba: Pointer to hba context object.
6822 * @mboxq: Pointer to mailbox object.
6824 * This function frees memory associated with the mailbox command.
6827 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6829 struct lpfc_vport *vport = mboxq->vport;
6831 if (mboxq->u.mb.mbxStatus) {
6832 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6833 "2550 UNREG_FCFI mbxStatus error x%x "
6835 mboxq->u.mb.mbxStatus, vport->port_state);
6837 mempool_free(mboxq, phba->mbox_mem_pool);
6842 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6843 * @phba: Pointer to hba context object.
6845 * This function prepare the HBA for unregistering the currently registered
6846 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6850 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6852 struct lpfc_vport **vports;
6853 struct lpfc_nodelist *ndlp;
6854 struct Scsi_Host *shost;
6857 /* Unregister RPIs */
6858 if (lpfc_fcf_inuse(phba))
6859 lpfc_unreg_hba_rpis(phba);
6861 /* At this point, all discovery is aborted */
6862 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6864 /* Unregister VPIs */
6865 vports = lpfc_create_vport_work_array(phba);
6866 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6867 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6868 /* Stop FLOGI/FDISC retries */
6869 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6871 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6872 lpfc_cleanup_pending_mbox(vports[i]);
6873 if (phba->sli_rev == LPFC_SLI_REV4)
6874 lpfc_sli4_unreg_all_rpis(vports[i]);
6875 lpfc_mbx_unreg_vpi(vports[i]);
6876 shost = lpfc_shost_from_vport(vports[i]);
6877 spin_lock_irq(shost->host_lock);
6878 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6879 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6880 spin_unlock_irq(shost->host_lock);
6882 lpfc_destroy_vport_work_array(phba, vports);
6883 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6884 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6886 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6887 lpfc_cleanup_pending_mbox(phba->pport);
6888 if (phba->sli_rev == LPFC_SLI_REV4)
6889 lpfc_sli4_unreg_all_rpis(phba->pport);
6890 lpfc_mbx_unreg_vpi(phba->pport);
6891 shost = lpfc_shost_from_vport(phba->pport);
6892 spin_lock_irq(shost->host_lock);
6893 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6894 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6895 spin_unlock_irq(shost->host_lock);
6898 /* Cleanup any outstanding ELS commands */
6899 lpfc_els_flush_all_cmd(phba);
6901 /* Unregister the physical port VFI */
6902 rc = lpfc_issue_unreg_vfi(phba->pport);
6907 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6908 * @phba: Pointer to hba context object.
6910 * This function issues synchronous unregister FCF mailbox command to HBA to
6911 * unregister the currently registered FCF record. The driver does not reset
6912 * the driver FCF usage state flags.
6914 * Return 0 if successfully issued, none-zero otherwise.
6917 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6922 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6924 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6925 "2551 UNREG_FCFI mbox allocation failed"
6926 "HBA state x%x\n", phba->pport->port_state);
6929 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6930 mbox->vport = phba->pport;
6931 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6932 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6934 if (rc == MBX_NOT_FINISHED) {
6935 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6936 "2552 Unregister FCFI command failed rc x%x "
6938 rc, phba->pport->port_state);
6945 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6946 * @phba: Pointer to hba context object.
6948 * This function unregisters the currently reigstered FCF. This function
6949 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6952 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6956 /* Preparation for unregistering fcf */
6957 rc = lpfc_unregister_fcf_prep(phba);
6959 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6960 "2748 Failed to prepare for unregistering "
6961 "HBA's FCF record: rc=%d\n", rc);
6965 /* Now, unregister FCF record and reset HBA FCF state */
6966 rc = lpfc_sli4_unregister_fcf(phba);
6969 /* Reset HBA FCF states after successful unregister FCF */
6970 phba->fcf.fcf_flag = 0;
6971 phba->fcf.current_rec.flag = 0;
6974 * If driver is not unloading, check if there is any other
6975 * FCF record that can be used for discovery.
6977 if ((phba->pport->load_flag & FC_UNLOADING) ||
6978 (phba->link_state < LPFC_LINK_UP))
6981 /* This is considered as the initial FCF discovery scan */
6982 spin_lock_irq(&phba->hbalock);
6983 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6984 spin_unlock_irq(&phba->hbalock);
6986 /* Reset FCF roundrobin bmask for new discovery */
6987 lpfc_sli4_clear_fcf_rr_bmask(phba);
6989 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6992 spin_lock_irq(&phba->hbalock);
6993 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6994 spin_unlock_irq(&phba->hbalock);
6995 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6996 "2553 lpfc_unregister_unused_fcf failed "
6997 "to read FCF record HBA state x%x\n",
6998 phba->pport->port_state);
7003 * lpfc_unregister_fcf - Unregister the currently registered fcf record
7004 * @phba: Pointer to hba context object.
7006 * This function just unregisters the currently reigstered FCF. It does not
7007 * try to find another FCF for discovery.
7010 lpfc_unregister_fcf(struct lpfc_hba *phba)
7014 /* Preparation for unregistering fcf */
7015 rc = lpfc_unregister_fcf_prep(phba);
7017 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7018 "2749 Failed to prepare for unregistering "
7019 "HBA's FCF record: rc=%d\n", rc);
7023 /* Now, unregister FCF record and reset HBA FCF state */
7024 rc = lpfc_sli4_unregister_fcf(phba);
7027 /* Set proper HBA FCF states after successful unregister FCF */
7028 spin_lock_irq(&phba->hbalock);
7029 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
7030 spin_unlock_irq(&phba->hbalock);
7034 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
7035 * @phba: Pointer to hba context object.
7037 * This function check if there are any connected remote port for the FCF and
7038 * if all the devices are disconnected, this function unregister FCFI.
7039 * This function also tries to use another FCF for discovery.
7042 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
7045 * If HBA is not running in FIP mode, if HBA does not support
7046 * FCoE, if FCF discovery is ongoing, or if FCF has not been
7047 * registered, do nothing.
7049 spin_lock_irq(&phba->hbalock);
7050 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
7051 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
7052 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
7053 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
7054 (phba->pport->port_state == LPFC_FLOGI)) {
7055 spin_unlock_irq(&phba->hbalock);
7058 spin_unlock_irq(&phba->hbalock);
7060 if (lpfc_fcf_inuse(phba))
7063 lpfc_unregister_fcf_rescan(phba);
7067 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
7068 * @phba: Pointer to hba context object.
7069 * @buff: Buffer containing the FCF connection table as in the config
7071 * This function create driver data structure for the FCF connection
7072 * record table read from config region 23.
7075 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
7078 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
7079 struct lpfc_fcf_conn_hdr *conn_hdr;
7080 struct lpfc_fcf_conn_rec *conn_rec;
7081 uint32_t record_count;
7084 /* Free the current connect table */
7085 list_for_each_entry_safe(conn_entry, next_conn_entry,
7086 &phba->fcf_conn_rec_list, list) {
7087 list_del_init(&conn_entry->list);
7091 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
7092 record_count = conn_hdr->length * sizeof(uint32_t)/
7093 sizeof(struct lpfc_fcf_conn_rec);
7095 conn_rec = (struct lpfc_fcf_conn_rec *)
7096 (buff + sizeof(struct lpfc_fcf_conn_hdr));
7098 for (i = 0; i < record_count; i++) {
7099 if (!(conn_rec[i].flags & FCFCNCT_VALID))
7101 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
7104 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7105 "2566 Failed to allocate connection"
7110 memcpy(&conn_entry->conn_rec, &conn_rec[i],
7111 sizeof(struct lpfc_fcf_conn_rec));
7112 list_add_tail(&conn_entry->list,
7113 &phba->fcf_conn_rec_list);
7116 if (!list_empty(&phba->fcf_conn_rec_list)) {
7118 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
7120 conn_rec = &conn_entry->conn_rec;
7121 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7122 "3345 FCF connection list rec[%02d]: "
7123 "flags:x%04x, vtag:x%04x, "
7124 "fabric_name:x%02x:%02x:%02x:%02x:"
7125 "%02x:%02x:%02x:%02x, "
7126 "switch_name:x%02x:%02x:%02x:%02x:"
7127 "%02x:%02x:%02x:%02x\n", i++,
7128 conn_rec->flags, conn_rec->vlan_tag,
7129 conn_rec->fabric_name[0],
7130 conn_rec->fabric_name[1],
7131 conn_rec->fabric_name[2],
7132 conn_rec->fabric_name[3],
7133 conn_rec->fabric_name[4],
7134 conn_rec->fabric_name[5],
7135 conn_rec->fabric_name[6],
7136 conn_rec->fabric_name[7],
7137 conn_rec->switch_name[0],
7138 conn_rec->switch_name[1],
7139 conn_rec->switch_name[2],
7140 conn_rec->switch_name[3],
7141 conn_rec->switch_name[4],
7142 conn_rec->switch_name[5],
7143 conn_rec->switch_name[6],
7144 conn_rec->switch_name[7]);
7150 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
7151 * @phba: Pointer to hba context object.
7152 * @buff: Buffer containing the FCoE parameter data structure.
7154 * This function update driver data structure with config
7155 * parameters read from config region 23.
7158 lpfc_read_fcoe_param(struct lpfc_hba *phba,
7161 struct lpfc_fip_param_hdr *fcoe_param_hdr;
7162 struct lpfc_fcoe_params *fcoe_param;
7164 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
7166 fcoe_param = (struct lpfc_fcoe_params *)
7167 (buff + sizeof(struct lpfc_fip_param_hdr));
7169 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
7170 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
7173 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
7174 phba->valid_vlan = 1;
7175 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
7179 phba->fc_map[0] = fcoe_param->fc_map[0];
7180 phba->fc_map[1] = fcoe_param->fc_map[1];
7181 phba->fc_map[2] = fcoe_param->fc_map[2];
7186 * lpfc_get_rec_conf23 - Get a record type in config region data.
7187 * @buff: Buffer containing config region 23 data.
7188 * @size: Size of the data buffer.
7189 * @rec_type: Record type to be searched.
7191 * This function searches config region data to find the beginning
7192 * of the record specified by record_type. If record found, this
7193 * function return pointer to the record else return NULL.
7196 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
7198 uint32_t offset = 0, rec_length;
7200 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
7201 (size < sizeof(uint32_t)))
7204 rec_length = buff[offset + 1];
7207 * One TLV record has one word header and number of data words
7208 * specified in the rec_length field of the record header.
7210 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
7212 if (buff[offset] == rec_type)
7213 return &buff[offset];
7215 if (buff[offset] == LPFC_REGION23_LAST_REC)
7218 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
7219 rec_length = buff[offset + 1];
7225 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
7226 * @phba: Pointer to lpfc_hba data structure.
7227 * @buff: Buffer containing config region 23 data.
7228 * @size: Size of the data buffer.
7230 * This function parses the FCoE config parameters in config region 23 and
7231 * populate driver data structure with the parameters.
7234 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
7238 uint32_t offset = 0;
7242 * If data size is less than 2 words signature and version cannot be
7245 if (size < 2*sizeof(uint32_t))
7248 /* Check the region signature first */
7249 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
7250 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7251 "2567 Config region 23 has bad signature\n");
7257 /* Check the data structure version */
7258 if (buff[offset] != LPFC_REGION23_VERSION) {
7259 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7260 "2568 Config region 23 has bad version\n");
7265 /* Read FCoE param record */
7266 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
7267 size - offset, FCOE_PARAM_TYPE);
7269 lpfc_read_fcoe_param(phba, rec_ptr);
7271 /* Read FCF connection table */
7272 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
7273 size - offset, FCOE_CONN_TBL_TYPE);
7275 lpfc_read_fcf_conn_tbl(phba, rec_ptr);