1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2013 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/slab.h>
25 #include <linux/pci.h>
26 #include <linux/kthread.h>
27 #include <linux/interrupt.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
37 #include "lpfc_disc.h"
39 #include "lpfc_sli4.h"
40 #include "lpfc_scsi.h"
42 #include "lpfc_logmsg.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_vport.h"
45 #include "lpfc_debugfs.h"
47 /* AlpaArray for assignment of scsid for scan-down and bind_method */
48 static uint8_t lpfcAlpaArray
[] = {
49 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
50 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
51 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
52 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
53 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
54 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
55 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
56 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
57 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
58 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
59 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
60 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
61 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
64 static void lpfc_disc_timeout_handler(struct lpfc_vport
*);
65 static void lpfc_disc_flush_list(struct lpfc_vport
*vport
);
66 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba
*, LPFC_MBOXQ_t
*);
67 static int lpfc_fcf_inuse(struct lpfc_hba
*);
70 lpfc_terminate_rport_io(struct fc_rport
*rport
)
72 struct lpfc_rport_data
*rdata
;
73 struct lpfc_nodelist
* ndlp
;
74 struct lpfc_hba
*phba
;
76 rdata
= rport
->dd_data
;
79 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
80 if (rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)
81 printk(KERN_ERR
"Cannot find remote node"
82 " to terminate I/O Data x%x\n",
89 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
90 "rport terminate: sid:x%x did:x%x flg:x%x",
91 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
93 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
94 lpfc_sli_abort_iocb(ndlp
->vport
,
95 &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
96 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
101 * This function will be called when dev_loss_tmo fire.
104 lpfc_dev_loss_tmo_callbk(struct fc_rport
*rport
)
106 struct lpfc_rport_data
*rdata
;
107 struct lpfc_nodelist
* ndlp
;
108 struct lpfc_vport
*vport
;
109 struct lpfc_hba
*phba
;
110 struct lpfc_work_evt
*evtp
;
114 rdata
= rport
->dd_data
;
116 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
122 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
123 "rport devlosscb: sid:x%x did:x%x flg:x%x",
124 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
126 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
127 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
128 ndlp
->nlp_DID
, ndlp
->rport
, ndlp
->nlp_flag
);
130 /* Don't defer this if we are in the process of deleting the vport
131 * or unloading the driver. The unload will cleanup the node
132 * appropriately we just need to cleanup the ndlp rport info here.
134 if (vport
->load_flag
& FC_UNLOADING
) {
135 put_node
= rdata
->pnode
!= NULL
;
136 put_rport
= ndlp
->rport
!= NULL
;
142 put_device(&rport
->dev
);
146 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)
149 if (ndlp
->nlp_type
& NLP_FABRIC
) {
151 /* If the WWPN of the rport and ndlp don't match, ignore it */
152 if (rport
->port_name
!= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
)) {
153 put_device(&rport
->dev
);
158 evtp
= &ndlp
->dev_loss_evt
;
160 if (!list_empty(&evtp
->evt_listp
))
163 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
165 spin_lock_irq(&phba
->hbalock
);
166 /* We need to hold the node by incrementing the reference
167 * count until this queued work is done
169 if (evtp
->evt_arg1
) {
170 evtp
->evt
= LPFC_EVT_DEV_LOSS
;
171 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
172 lpfc_worker_wake_up(phba
);
174 spin_unlock_irq(&phba
->hbalock
);
180 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
181 * @ndlp: Pointer to remote node object.
183 * This function is called from the worker thread when devloss timeout timer
184 * expires. For SLI4 host, this routine shall return 1 when at lease one
185 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
186 * routine shall return 0 when there is no remote node is still in use of FCF
187 * when devloss timeout happened to this @ndlp.
190 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist
*ndlp
)
192 struct lpfc_rport_data
*rdata
;
193 struct fc_rport
*rport
;
194 struct lpfc_vport
*vport
;
195 struct lpfc_hba
*phba
;
207 rdata
= rport
->dd_data
;
208 name
= (uint8_t *) &ndlp
->nlp_portname
;
212 if (phba
->sli_rev
== LPFC_SLI_REV4
)
213 fcf_inuse
= lpfc_fcf_inuse(phba
);
215 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
216 "rport devlosstmo:did:x%x type:x%x id:x%x",
217 ndlp
->nlp_DID
, ndlp
->nlp_type
, rport
->scsi_target_id
);
219 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
220 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
221 ndlp
->nlp_DID
, ndlp
->rport
, ndlp
->nlp_flag
);
223 /* Don't defer this if we are in the process of deleting the vport
224 * or unloading the driver. The unload will cleanup the node
225 * appropriately we just need to cleanup the ndlp rport info here.
227 if (vport
->load_flag
& FC_UNLOADING
) {
228 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
229 /* flush the target */
230 lpfc_sli_abort_iocb(vport
,
231 &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
232 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
234 put_node
= rdata
->pnode
!= NULL
;
235 put_rport
= ndlp
->rport
!= NULL
;
241 put_device(&rport
->dev
);
245 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
) {
246 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
247 "0284 Devloss timeout Ignored on "
248 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
250 *name
, *(name
+1), *(name
+2), *(name
+3),
251 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
256 if (ndlp
->nlp_type
& NLP_FABRIC
) {
257 /* We will clean up these Nodes in linkup */
258 put_node
= rdata
->pnode
!= NULL
;
259 put_rport
= ndlp
->rport
!= NULL
;
265 put_device(&rport
->dev
);
269 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
271 /* flush the target */
272 lpfc_sli_abort_iocb(vport
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
273 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
277 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
278 "0203 Devloss timeout on "
279 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
280 "NPort x%06x Data: x%x x%x x%x\n",
281 *name
, *(name
+1), *(name
+2), *(name
+3),
282 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
283 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
284 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
286 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
287 "0204 Devloss timeout on "
288 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
289 "NPort x%06x Data: x%x x%x x%x\n",
290 *name
, *(name
+1), *(name
+2), *(name
+3),
291 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
292 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
293 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
296 put_node
= rdata
->pnode
!= NULL
;
297 put_rport
= ndlp
->rport
!= NULL
;
303 put_device(&rport
->dev
);
305 if (!(vport
->load_flag
& FC_UNLOADING
) &&
306 !(ndlp
->nlp_flag
& NLP_DELAY_TMO
) &&
307 !(ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) &&
308 (ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
309 (ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) &&
310 (ndlp
->nlp_state
!= NLP_STE_PRLI_ISSUE
))
311 lpfc_disc_state_machine(vport
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
317 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
318 * @phba: Pointer to hba context object.
319 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
320 * @nlp_did: remote node identifer with devloss timeout.
322 * This function is called from the worker thread after invoking devloss
323 * timeout handler and releasing the reference count for the ndlp with
324 * which the devloss timeout was handled for SLI4 host. For the devloss
325 * timeout of the last remote node which had been in use of FCF, when this
326 * routine is invoked, it shall be guaranteed that none of the remote are
327 * in-use of FCF. When devloss timeout to the last remote using the FCF,
328 * if the FIP engine is neither in FCF table scan process nor roundrobin
329 * failover process, the in-use FCF shall be unregistered. If the FIP
330 * engine is in FCF discovery process, the devloss timeout state shall
331 * be set for either the FCF table scan process or roundrobin failover
332 * process to unregister the in-use FCF.
335 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba
*phba
, int fcf_inuse
,
338 /* If devloss timeout happened to a remote node when FCF had no
339 * longer been in-use, do nothing.
344 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) && !lpfc_fcf_inuse(phba
)) {
345 spin_lock_irq(&phba
->hbalock
);
346 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
347 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
348 spin_unlock_irq(&phba
->hbalock
);
351 phba
->hba_flag
|= HBA_DEVLOSS_TMO
;
352 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
353 "2847 Last remote node (x%x) using "
354 "FCF devloss tmo\n", nlp_did
);
356 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PROG
) {
357 spin_unlock_irq(&phba
->hbalock
);
358 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
359 "2868 Devloss tmo to FCF rediscovery "
363 if (!(phba
->hba_flag
& (FCF_TS_INPROG
| FCF_RR_INPROG
))) {
364 spin_unlock_irq(&phba
->hbalock
);
365 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
366 "2869 Devloss tmo to idle FIP engine, "
367 "unreg in-use FCF and rescan.\n");
368 /* Unregister in-use FCF and rescan */
369 lpfc_unregister_fcf_rescan(phba
);
372 spin_unlock_irq(&phba
->hbalock
);
373 if (phba
->hba_flag
& FCF_TS_INPROG
)
374 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
375 "2870 FCF table scan in progress\n");
376 if (phba
->hba_flag
& FCF_RR_INPROG
)
377 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
378 "2871 FLOGI roundrobin FCF failover "
381 lpfc_unregister_unused_fcf(phba
);
385 * lpfc_alloc_fast_evt - Allocates data structure for posting event
386 * @phba: Pointer to hba context object.
388 * This function is called from the functions which need to post
389 * events from interrupt context. This function allocates data
390 * structure required for posting event. It also keeps track of
391 * number of events pending and prevent event storm when there are
394 struct lpfc_fast_path_event
*
395 lpfc_alloc_fast_evt(struct lpfc_hba
*phba
) {
396 struct lpfc_fast_path_event
*ret
;
398 /* If there are lot of fast event do not exhaust memory due to this */
399 if (atomic_read(&phba
->fast_event_count
) > LPFC_MAX_EVT_COUNT
)
402 ret
= kzalloc(sizeof(struct lpfc_fast_path_event
),
405 atomic_inc(&phba
->fast_event_count
);
406 INIT_LIST_HEAD(&ret
->work_evt
.evt_listp
);
407 ret
->work_evt
.evt
= LPFC_EVT_FASTPATH_MGMT_EVT
;
413 * lpfc_free_fast_evt - Frees event data structure
414 * @phba: Pointer to hba context object.
415 * @evt: Event object which need to be freed.
417 * This function frees the data structure required for posting
421 lpfc_free_fast_evt(struct lpfc_hba
*phba
,
422 struct lpfc_fast_path_event
*evt
) {
424 atomic_dec(&phba
->fast_event_count
);
429 * lpfc_send_fastpath_evt - Posts events generated from fast path
430 * @phba: Pointer to hba context object.
431 * @evtp: Event data structure.
433 * This function is called from worker thread, when the interrupt
434 * context need to post an event. This function posts the event
435 * to fc transport netlink interface.
438 lpfc_send_fastpath_evt(struct lpfc_hba
*phba
,
439 struct lpfc_work_evt
*evtp
)
441 unsigned long evt_category
, evt_sub_category
;
442 struct lpfc_fast_path_event
*fast_evt_data
;
444 uint32_t evt_data_size
;
445 struct Scsi_Host
*shost
;
447 fast_evt_data
= container_of(evtp
, struct lpfc_fast_path_event
,
450 evt_category
= (unsigned long) fast_evt_data
->un
.fabric_evt
.event_type
;
451 evt_sub_category
= (unsigned long) fast_evt_data
->un
.
452 fabric_evt
.subcategory
;
453 shost
= lpfc_shost_from_vport(fast_evt_data
->vport
);
454 if (evt_category
== FC_REG_FABRIC_EVENT
) {
455 if (evt_sub_category
== LPFC_EVENT_FCPRDCHKERR
) {
456 evt_data
= (char *) &fast_evt_data
->un
.read_check_error
;
457 evt_data_size
= sizeof(fast_evt_data
->un
.
459 } else if ((evt_sub_category
== LPFC_EVENT_FABRIC_BUSY
) ||
460 (evt_sub_category
== LPFC_EVENT_PORT_BUSY
)) {
461 evt_data
= (char *) &fast_evt_data
->un
.fabric_evt
;
462 evt_data_size
= sizeof(fast_evt_data
->un
.fabric_evt
);
464 lpfc_free_fast_evt(phba
, fast_evt_data
);
467 } else if (evt_category
== FC_REG_SCSI_EVENT
) {
468 switch (evt_sub_category
) {
469 case LPFC_EVENT_QFULL
:
470 case LPFC_EVENT_DEVBSY
:
471 evt_data
= (char *) &fast_evt_data
->un
.scsi_evt
;
472 evt_data_size
= sizeof(fast_evt_data
->un
.scsi_evt
);
474 case LPFC_EVENT_CHECK_COND
:
475 evt_data
= (char *) &fast_evt_data
->un
.check_cond_evt
;
476 evt_data_size
= sizeof(fast_evt_data
->un
.
479 case LPFC_EVENT_VARQUEDEPTH
:
480 evt_data
= (char *) &fast_evt_data
->un
.queue_depth_evt
;
481 evt_data_size
= sizeof(fast_evt_data
->un
.
485 lpfc_free_fast_evt(phba
, fast_evt_data
);
489 lpfc_free_fast_evt(phba
, fast_evt_data
);
493 fc_host_post_vendor_event(shost
,
494 fc_get_event_number(),
499 lpfc_free_fast_evt(phba
, fast_evt_data
);
504 lpfc_work_list_done(struct lpfc_hba
*phba
)
506 struct lpfc_work_evt
*evtp
= NULL
;
507 struct lpfc_nodelist
*ndlp
;
512 spin_lock_irq(&phba
->hbalock
);
513 while (!list_empty(&phba
->work_list
)) {
514 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
516 spin_unlock_irq(&phba
->hbalock
);
519 case LPFC_EVT_ELS_RETRY
:
520 ndlp
= (struct lpfc_nodelist
*) (evtp
->evt_arg1
);
521 lpfc_els_retry_delay_handler(ndlp
);
522 free_evt
= 0; /* evt is part of ndlp */
523 /* decrement the node reference count held
524 * for this queued work
528 case LPFC_EVT_DEV_LOSS
:
529 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
530 fcf_inuse
= lpfc_dev_loss_tmo_handler(ndlp
);
532 /* decrement the node reference count held for
535 nlp_did
= ndlp
->nlp_DID
;
537 if (phba
->sli_rev
== LPFC_SLI_REV4
)
538 lpfc_sli4_post_dev_loss_tmo_handler(phba
,
542 case LPFC_EVT_ONLINE
:
543 if (phba
->link_state
< LPFC_LINK_DOWN
)
544 *(int *) (evtp
->evt_arg1
) = lpfc_online(phba
);
546 *(int *) (evtp
->evt_arg1
) = 0;
547 complete((struct completion
*)(evtp
->evt_arg2
));
549 case LPFC_EVT_OFFLINE_PREP
:
550 if (phba
->link_state
>= LPFC_LINK_DOWN
)
551 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
552 *(int *)(evtp
->evt_arg1
) = 0;
553 complete((struct completion
*)(evtp
->evt_arg2
));
555 case LPFC_EVT_OFFLINE
:
557 lpfc_sli_brdrestart(phba
);
558 *(int *)(evtp
->evt_arg1
) =
559 lpfc_sli_brdready(phba
, HS_FFRDY
| HS_MBRDY
);
560 lpfc_unblock_mgmt_io(phba
);
561 complete((struct completion
*)(evtp
->evt_arg2
));
563 case LPFC_EVT_WARM_START
:
565 lpfc_reset_barrier(phba
);
566 lpfc_sli_brdreset(phba
);
567 lpfc_hba_down_post(phba
);
568 *(int *)(evtp
->evt_arg1
) =
569 lpfc_sli_brdready(phba
, HS_MBRDY
);
570 lpfc_unblock_mgmt_io(phba
);
571 complete((struct completion
*)(evtp
->evt_arg2
));
575 *(int *)(evtp
->evt_arg1
)
576 = (phba
->pport
->stopped
)
577 ? 0 : lpfc_sli_brdkill(phba
);
578 lpfc_unblock_mgmt_io(phba
);
579 complete((struct completion
*)(evtp
->evt_arg2
));
581 case LPFC_EVT_FASTPATH_MGMT_EVT
:
582 lpfc_send_fastpath_evt(phba
, evtp
);
585 case LPFC_EVT_RESET_HBA
:
586 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
587 lpfc_reset_hba(phba
);
592 spin_lock_irq(&phba
->hbalock
);
594 spin_unlock_irq(&phba
->hbalock
);
599 lpfc_work_done(struct lpfc_hba
*phba
)
601 struct lpfc_sli_ring
*pring
;
602 uint32_t ha_copy
, status
, control
, work_port_events
;
603 struct lpfc_vport
**vports
;
604 struct lpfc_vport
*vport
;
607 spin_lock_irq(&phba
->hbalock
);
608 ha_copy
= phba
->work_ha
;
610 spin_unlock_irq(&phba
->hbalock
);
612 /* First, try to post the next mailbox command to SLI4 device */
613 if (phba
->pci_dev_grp
== LPFC_PCI_DEV_OC
)
614 lpfc_sli4_post_async_mbox(phba
);
616 if (ha_copy
& HA_ERATT
)
617 /* Handle the error attention event */
618 lpfc_handle_eratt(phba
);
620 if (ha_copy
& HA_MBATT
)
621 lpfc_sli_handle_mb_event(phba
);
623 if (ha_copy
& HA_LATT
)
624 lpfc_handle_latt(phba
);
626 /* Process SLI4 events */
627 if (phba
->pci_dev_grp
== LPFC_PCI_DEV_OC
) {
628 if (phba
->hba_flag
& HBA_RRQ_ACTIVE
)
629 lpfc_handle_rrq_active(phba
);
630 if (phba
->hba_flag
& FCP_XRI_ABORT_EVENT
)
631 lpfc_sli4_fcp_xri_abort_event_proc(phba
);
632 if (phba
->hba_flag
& ELS_XRI_ABORT_EVENT
)
633 lpfc_sli4_els_xri_abort_event_proc(phba
);
634 if (phba
->hba_flag
& ASYNC_EVENT
)
635 lpfc_sli4_async_event_proc(phba
);
636 if (phba
->hba_flag
& HBA_POST_RECEIVE_BUFFER
) {
637 spin_lock_irq(&phba
->hbalock
);
638 phba
->hba_flag
&= ~HBA_POST_RECEIVE_BUFFER
;
639 spin_unlock_irq(&phba
->hbalock
);
640 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
642 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
)
643 lpfc_sli4_fcf_redisc_event_proc(phba
);
646 vports
= lpfc_create_vport_work_array(phba
);
648 for (i
= 0; i
<= phba
->max_vports
; i
++) {
650 * We could have no vports in array if unloading, so if
651 * this happens then just use the pport
653 if (vports
[i
] == NULL
&& i
== 0)
659 spin_lock_irq(&vport
->work_port_lock
);
660 work_port_events
= vport
->work_port_events
;
661 vport
->work_port_events
&= ~work_port_events
;
662 spin_unlock_irq(&vport
->work_port_lock
);
663 if (work_port_events
& WORKER_DISC_TMO
)
664 lpfc_disc_timeout_handler(vport
);
665 if (work_port_events
& WORKER_ELS_TMO
)
666 lpfc_els_timeout_handler(vport
);
667 if (work_port_events
& WORKER_HB_TMO
)
668 lpfc_hb_timeout_handler(phba
);
669 if (work_port_events
& WORKER_MBOX_TMO
)
670 lpfc_mbox_timeout_handler(phba
);
671 if (work_port_events
& WORKER_FABRIC_BLOCK_TMO
)
672 lpfc_unblock_fabric_iocbs(phba
);
673 if (work_port_events
& WORKER_FDMI_TMO
)
674 lpfc_fdmi_timeout_handler(vport
);
675 if (work_port_events
& WORKER_RAMP_DOWN_QUEUE
)
676 lpfc_ramp_down_queue_handler(phba
);
677 if (work_port_events
& WORKER_RAMP_UP_QUEUE
)
678 lpfc_ramp_up_queue_handler(phba
);
679 if (work_port_events
& WORKER_DELAYED_DISC_TMO
)
680 lpfc_delayed_disc_timeout_handler(vport
);
682 lpfc_destroy_vport_work_array(phba
, vports
);
684 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
685 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
686 status
>>= (4*LPFC_ELS_RING
);
687 if ((status
& HA_RXMASK
) ||
688 (pring
->flag
& LPFC_DEFERRED_RING_EVENT
) ||
689 (phba
->hba_flag
& HBA_SP_QUEUE_EVT
)) {
690 if (pring
->flag
& LPFC_STOP_IOCB_EVENT
) {
691 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
692 /* Set the lpfc data pending flag */
693 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
695 if (phba
->link_state
>= LPFC_LINK_UP
) {
696 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
697 lpfc_sli_handle_slow_ring_event(phba
, pring
,
702 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &
703 (!list_empty(&pring
->txq
)))
704 lpfc_drain_txq(phba
);
706 * Turn on Ring interrupts
708 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
709 spin_lock_irq(&phba
->hbalock
);
710 control
= readl(phba
->HCregaddr
);
711 if (!(control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
))) {
712 lpfc_debugfs_slow_ring_trc(phba
,
713 "WRK Enable ring: cntl:x%x hacopy:x%x",
714 control
, ha_copy
, 0);
716 control
|= (HC_R0INT_ENA
<< LPFC_ELS_RING
);
717 writel(control
, phba
->HCregaddr
);
718 readl(phba
->HCregaddr
); /* flush */
720 lpfc_debugfs_slow_ring_trc(phba
,
721 "WRK Ring ok: cntl:x%x hacopy:x%x",
722 control
, ha_copy
, 0);
724 spin_unlock_irq(&phba
->hbalock
);
727 lpfc_work_list_done(phba
);
731 lpfc_do_work(void *p
)
733 struct lpfc_hba
*phba
= p
;
736 set_user_nice(current
, -20);
737 current
->flags
|= PF_NOFREEZE
;
738 phba
->data_flags
= 0;
740 while (!kthread_should_stop()) {
741 /* wait and check worker queue activities */
742 rc
= wait_event_interruptible(phba
->work_waitq
,
743 (test_and_clear_bit(LPFC_DATA_READY
,
745 || kthread_should_stop()));
746 /* Signal wakeup shall terminate the worker thread */
748 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
749 "0433 Wakeup on signal: rc=x%x\n", rc
);
753 /* Attend pending lpfc data processing */
754 lpfc_work_done(phba
);
756 phba
->worker_thread
= NULL
;
757 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
758 "0432 Worker thread stopped.\n");
763 * This is only called to handle FC worker events. Since this a rare
764 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
765 * embedding it in the IOCB.
768 lpfc_workq_post_event(struct lpfc_hba
*phba
, void *arg1
, void *arg2
,
771 struct lpfc_work_evt
*evtp
;
775 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
776 * be queued to worker thread for processing
778 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_ATOMIC
);
782 evtp
->evt_arg1
= arg1
;
783 evtp
->evt_arg2
= arg2
;
786 spin_lock_irqsave(&phba
->hbalock
, flags
);
787 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
788 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
790 lpfc_worker_wake_up(phba
);
796 lpfc_cleanup_rpis(struct lpfc_vport
*vport
, int remove
)
798 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
799 struct lpfc_hba
*phba
= vport
->phba
;
800 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
803 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
804 if (!NLP_CHK_NODE_ACT(ndlp
))
806 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
808 if ((phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) ||
809 ((vport
->port_type
== LPFC_NPIV_PORT
) &&
810 (ndlp
->nlp_DID
== NameServer_DID
)))
811 lpfc_unreg_rpi(vport
, ndlp
);
813 /* Leave Fabric nodes alone on link down */
814 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
815 (!remove
&& ndlp
->nlp_type
& NLP_FABRIC
))
817 rc
= lpfc_disc_state_machine(vport
, ndlp
, NULL
,
820 : NLP_EVT_DEVICE_RECOVERY
);
822 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) {
823 if (phba
->sli_rev
== LPFC_SLI_REV4
)
824 lpfc_sli4_unreg_all_rpis(vport
);
825 lpfc_mbx_unreg_vpi(vport
);
826 spin_lock_irq(shost
->host_lock
);
827 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
828 spin_unlock_irq(shost
->host_lock
);
833 lpfc_port_link_failure(struct lpfc_vport
*vport
)
835 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
837 /* Cleanup any outstanding received buffers */
838 lpfc_cleanup_rcv_buffers(vport
);
840 /* Cleanup any outstanding RSCN activity */
841 lpfc_els_flush_rscn(vport
);
843 /* Cleanup any outstanding ELS commands */
844 lpfc_els_flush_cmd(vport
);
846 lpfc_cleanup_rpis(vport
, 0);
848 /* Turn off discovery timer if its running */
849 lpfc_can_disctmo(vport
);
853 lpfc_linkdown_port(struct lpfc_vport
*vport
)
855 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
857 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKDOWN
, 0);
859 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
860 "Link Down: state:x%x rtry:x%x flg:x%x",
861 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
863 lpfc_port_link_failure(vport
);
865 /* Stop delayed Nport discovery */
866 spin_lock_irq(shost
->host_lock
);
867 vport
->fc_flag
&= ~FC_DISC_DELAYED
;
868 spin_unlock_irq(shost
->host_lock
);
869 del_timer_sync(&vport
->delayed_disc_tmo
);
873 lpfc_linkdown(struct lpfc_hba
*phba
)
875 struct lpfc_vport
*vport
= phba
->pport
;
876 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
877 struct lpfc_vport
**vports
;
881 if (phba
->link_state
== LPFC_LINK_DOWN
)
884 /* Block all SCSI stack I/Os */
885 lpfc_scsi_dev_block(phba
);
887 spin_lock_irq(&phba
->hbalock
);
888 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
889 spin_unlock_irq(&phba
->hbalock
);
890 if (phba
->link_state
> LPFC_LINK_DOWN
) {
891 phba
->link_state
= LPFC_LINK_DOWN
;
892 spin_lock_irq(shost
->host_lock
);
893 phba
->pport
->fc_flag
&= ~FC_LBIT
;
894 spin_unlock_irq(shost
->host_lock
);
896 vports
= lpfc_create_vport_work_array(phba
);
898 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
899 /* Issue a LINK DOWN event to all nodes */
900 lpfc_linkdown_port(vports
[i
]);
902 lpfc_destroy_vport_work_array(phba
, vports
);
903 /* Clean up any firmware default rpi's */
904 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
906 lpfc_unreg_did(phba
, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS
, mb
);
908 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
909 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
910 == MBX_NOT_FINISHED
) {
911 mempool_free(mb
, phba
->mbox_mem_pool
);
915 /* Setup myDID for link up if we are in pt2pt mode */
916 if (phba
->pport
->fc_flag
& FC_PT2PT
) {
917 phba
->pport
->fc_myDID
= 0;
918 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
920 lpfc_config_link(phba
, mb
);
921 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
923 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
924 == MBX_NOT_FINISHED
) {
925 mempool_free(mb
, phba
->mbox_mem_pool
);
928 spin_lock_irq(shost
->host_lock
);
929 phba
->pport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
930 spin_unlock_irq(shost
->host_lock
);
937 lpfc_linkup_cleanup_nodes(struct lpfc_vport
*vport
)
939 struct lpfc_nodelist
*ndlp
;
941 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
942 if (!NLP_CHK_NODE_ACT(ndlp
))
944 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
946 if (ndlp
->nlp_type
& NLP_FABRIC
) {
947 /* On Linkup its safe to clean up the ndlp
948 * from Fabric connections.
950 if (ndlp
->nlp_DID
!= Fabric_DID
)
951 lpfc_unreg_rpi(vport
, ndlp
);
952 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
953 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
954 /* Fail outstanding IO now since device is
957 lpfc_unreg_rpi(vport
, ndlp
);
963 lpfc_linkup_port(struct lpfc_vport
*vport
)
965 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
966 struct lpfc_hba
*phba
= vport
->phba
;
968 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
971 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
972 "Link Up: top:x%x speed:x%x flg:x%x",
973 phba
->fc_topology
, phba
->fc_linkspeed
, phba
->link_flag
);
975 /* If NPIV is not enabled, only bring the physical port up */
976 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
977 (vport
!= phba
->pport
))
980 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKUP
, 0);
982 spin_lock_irq(shost
->host_lock
);
983 vport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
984 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
985 vport
->fc_flag
|= FC_NDISC_ACTIVE
;
986 vport
->fc_ns_retry
= 0;
987 spin_unlock_irq(shost
->host_lock
);
989 if (vport
->fc_flag
& FC_LBIT
)
990 lpfc_linkup_cleanup_nodes(vport
);
995 lpfc_linkup(struct lpfc_hba
*phba
)
997 struct lpfc_vport
**vports
;
1000 lpfc_cleanup_wt_rrqs(phba
);
1001 phba
->link_state
= LPFC_LINK_UP
;
1003 /* Unblock fabric iocbs if they are blocked */
1004 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
1005 del_timer_sync(&phba
->fabric_block_timer
);
1007 vports
= lpfc_create_vport_work_array(phba
);
1009 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1010 lpfc_linkup_port(vports
[i
]);
1011 lpfc_destroy_vport_work_array(phba
, vports
);
1017 * This routine handles processing a CLEAR_LA mailbox
1018 * command upon completion. It is setup in the LPFC_MBOXQ
1019 * as the completion routine when the command is
1020 * handed off to the SLI layer.
1023 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1025 struct lpfc_vport
*vport
= pmb
->vport
;
1026 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1027 struct lpfc_sli
*psli
= &phba
->sli
;
1028 MAILBOX_t
*mb
= &pmb
->u
.mb
;
1031 /* Since we don't do discovery right now, turn these off here */
1032 psli
->ring
[psli
->extra_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1033 psli
->ring
[psli
->fcp_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1034 psli
->ring
[psli
->next_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1036 /* Check for error */
1037 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
1038 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1039 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1040 "0320 CLEAR_LA mbxStatus error x%x hba "
1042 mb
->mbxStatus
, vport
->port_state
);
1043 phba
->link_state
= LPFC_HBA_ERROR
;
1047 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
1048 phba
->link_state
= LPFC_HBA_READY
;
1050 spin_lock_irq(&phba
->hbalock
);
1051 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1052 control
= readl(phba
->HCregaddr
);
1053 control
|= HC_LAINT_ENA
;
1054 writel(control
, phba
->HCregaddr
);
1055 readl(phba
->HCregaddr
); /* flush */
1056 spin_unlock_irq(&phba
->hbalock
);
1057 mempool_free(pmb
, phba
->mbox_mem_pool
);
1061 /* Device Discovery completes */
1062 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1063 "0225 Device Discovery completes\n");
1064 mempool_free(pmb
, phba
->mbox_mem_pool
);
1066 spin_lock_irq(shost
->host_lock
);
1067 vport
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
1068 spin_unlock_irq(shost
->host_lock
);
1070 lpfc_can_disctmo(vport
);
1072 /* turn on Link Attention interrupts */
1074 spin_lock_irq(&phba
->hbalock
);
1075 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1076 control
= readl(phba
->HCregaddr
);
1077 control
|= HC_LAINT_ENA
;
1078 writel(control
, phba
->HCregaddr
);
1079 readl(phba
->HCregaddr
); /* flush */
1080 spin_unlock_irq(&phba
->hbalock
);
1087 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1089 struct lpfc_vport
*vport
= pmb
->vport
;
1091 if (pmb
->u
.mb
.mbxStatus
)
1094 mempool_free(pmb
, phba
->mbox_mem_pool
);
1096 /* don't perform discovery for SLI4 loopback diagnostic test */
1097 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1098 !(phba
->hba_flag
& HBA_FCOE_MODE
) &&
1099 (phba
->link_flag
& LS_LOOPBACK_MODE
))
1102 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
&&
1103 vport
->fc_flag
& FC_PUBLIC_LOOP
&&
1104 !(vport
->fc_flag
& FC_LBIT
)) {
1105 /* Need to wait for FAN - use discovery timer
1106 * for timeout. port_state is identically
1107 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1109 lpfc_set_disctmo(vport
);
1113 /* Start discovery by sending a FLOGI. port_state is identically
1114 * LPFC_FLOGI while waiting for FLOGI cmpl
1116 if (vport
->port_state
!= LPFC_FLOGI
|| vport
->fc_flag
& FC_PT2PT_PLOGI
)
1117 lpfc_initial_flogi(vport
);
1121 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1122 "0306 CONFIG_LINK mbxStatus error x%x "
1124 pmb
->u
.mb
.mbxStatus
, vport
->port_state
);
1125 mempool_free(pmb
, phba
->mbox_mem_pool
);
1127 lpfc_linkdown(phba
);
1129 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
1130 "0200 CONFIG_LINK bad hba state x%x\n",
1133 lpfc_issue_clear_la(phba
, vport
);
1138 * lpfc_sli4_clear_fcf_rr_bmask
1139 * @phba pointer to the struct lpfc_hba for this port.
1140 * This fucnction resets the round robin bit mask and clears the
1141 * fcf priority list. The list deletions are done while holding the
1142 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1143 * from the lpfc_fcf_pri record.
1146 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba
*phba
)
1148 struct lpfc_fcf_pri
*fcf_pri
;
1149 struct lpfc_fcf_pri
*next_fcf_pri
;
1150 memset(phba
->fcf
.fcf_rr_bmask
, 0, sizeof(*phba
->fcf
.fcf_rr_bmask
));
1151 spin_lock_irq(&phba
->hbalock
);
1152 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
1153 &phba
->fcf
.fcf_pri_list
, list
) {
1154 list_del_init(&fcf_pri
->list
);
1155 fcf_pri
->fcf_rec
.flag
= 0;
1157 spin_unlock_irq(&phba
->hbalock
);
1160 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
1162 struct lpfc_vport
*vport
= mboxq
->vport
;
1164 if (mboxq
->u
.mb
.mbxStatus
) {
1165 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1166 "2017 REG_FCFI mbxStatus error x%x "
1168 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
1172 /* Start FCoE discovery by sending a FLOGI. */
1173 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
, &mboxq
->u
.mqe
.un
.reg_fcfi
);
1174 /* Set the FCFI registered flag */
1175 spin_lock_irq(&phba
->hbalock
);
1176 phba
->fcf
.fcf_flag
|= FCF_REGISTERED
;
1177 spin_unlock_irq(&phba
->hbalock
);
1179 /* If there is a pending FCoE event, restart FCF table scan. */
1180 if ((!(phba
->hba_flag
& FCF_RR_INPROG
)) &&
1181 lpfc_check_pending_fcoe_event(phba
, LPFC_UNREG_FCF
))
1184 /* Mark successful completion of FCF table scan */
1185 spin_lock_irq(&phba
->hbalock
);
1186 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1187 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1188 if (vport
->port_state
!= LPFC_FLOGI
) {
1189 phba
->hba_flag
|= FCF_RR_INPROG
;
1190 spin_unlock_irq(&phba
->hbalock
);
1191 lpfc_issue_init_vfi(vport
);
1194 spin_unlock_irq(&phba
->hbalock
);
1198 spin_lock_irq(&phba
->hbalock
);
1199 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1200 spin_unlock_irq(&phba
->hbalock
);
1202 mempool_free(mboxq
, phba
->mbox_mem_pool
);
1206 * lpfc_fab_name_match - Check if the fcf fabric name match.
1207 * @fab_name: pointer to fabric name.
1208 * @new_fcf_record: pointer to fcf record.
1210 * This routine compare the fcf record's fabric name with provided
1211 * fabric name. If the fabric name are identical this function
1212 * returns 1 else return 0.
1215 lpfc_fab_name_match(uint8_t *fab_name
, struct fcf_record
*new_fcf_record
)
1217 if (fab_name
[0] != bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
))
1219 if (fab_name
[1] != bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
))
1221 if (fab_name
[2] != bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
))
1223 if (fab_name
[3] != bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
))
1225 if (fab_name
[4] != bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
))
1227 if (fab_name
[5] != bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
))
1229 if (fab_name
[6] != bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
))
1231 if (fab_name
[7] != bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
))
1237 * lpfc_sw_name_match - Check if the fcf switch name match.
1238 * @fab_name: pointer to fabric name.
1239 * @new_fcf_record: pointer to fcf record.
1241 * This routine compare the fcf record's switch name with provided
1242 * switch name. If the switch name are identical this function
1243 * returns 1 else return 0.
1246 lpfc_sw_name_match(uint8_t *sw_name
, struct fcf_record
*new_fcf_record
)
1248 if (sw_name
[0] != bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
))
1250 if (sw_name
[1] != bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
))
1252 if (sw_name
[2] != bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
))
1254 if (sw_name
[3] != bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
))
1256 if (sw_name
[4] != bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
))
1258 if (sw_name
[5] != bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
))
1260 if (sw_name
[6] != bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
))
1262 if (sw_name
[7] != bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
))
1268 * lpfc_mac_addr_match - Check if the fcf mac address match.
1269 * @mac_addr: pointer to mac address.
1270 * @new_fcf_record: pointer to fcf record.
1272 * This routine compare the fcf record's mac address with HBA's
1273 * FCF mac address. If the mac addresses are identical this function
1274 * returns 1 else return 0.
1277 lpfc_mac_addr_match(uint8_t *mac_addr
, struct fcf_record
*new_fcf_record
)
1279 if (mac_addr
[0] != bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
))
1281 if (mac_addr
[1] != bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
))
1283 if (mac_addr
[2] != bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
))
1285 if (mac_addr
[3] != bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
))
1287 if (mac_addr
[4] != bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
))
1289 if (mac_addr
[5] != bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
))
1295 lpfc_vlan_id_match(uint16_t curr_vlan_id
, uint16_t new_vlan_id
)
1297 return (curr_vlan_id
== new_vlan_id
);
1301 * lpfc_update_fcf_record - Update driver fcf record
1302 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1303 * @phba: pointer to lpfc hba data structure.
1304 * @fcf_index: Index for the lpfc_fcf_record.
1305 * @new_fcf_record: pointer to hba fcf record.
1307 * This routine updates the driver FCF priority record from the new HBA FCF
1308 * record. This routine is called with the host lock held.
1311 __lpfc_update_fcf_record_pri(struct lpfc_hba
*phba
, uint16_t fcf_index
,
1312 struct fcf_record
*new_fcf_record
1315 struct lpfc_fcf_pri
*fcf_pri
;
1317 fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
1318 fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
1319 /* FCF record priority */
1320 fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
1325 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1326 * @fcf: pointer to driver fcf record.
1327 * @new_fcf_record: pointer to fcf record.
1329 * This routine copies the FCF information from the FCF
1330 * record to lpfc_hba data structure.
1333 lpfc_copy_fcf_record(struct lpfc_fcf_rec
*fcf_rec
,
1334 struct fcf_record
*new_fcf_record
)
1337 fcf_rec
->fabric_name
[0] =
1338 bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
);
1339 fcf_rec
->fabric_name
[1] =
1340 bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
);
1341 fcf_rec
->fabric_name
[2] =
1342 bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
);
1343 fcf_rec
->fabric_name
[3] =
1344 bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
);
1345 fcf_rec
->fabric_name
[4] =
1346 bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
);
1347 fcf_rec
->fabric_name
[5] =
1348 bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
);
1349 fcf_rec
->fabric_name
[6] =
1350 bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
);
1351 fcf_rec
->fabric_name
[7] =
1352 bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
);
1354 fcf_rec
->mac_addr
[0] = bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
);
1355 fcf_rec
->mac_addr
[1] = bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
);
1356 fcf_rec
->mac_addr
[2] = bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
);
1357 fcf_rec
->mac_addr
[3] = bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
);
1358 fcf_rec
->mac_addr
[4] = bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
);
1359 fcf_rec
->mac_addr
[5] = bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
);
1360 /* FCF record index */
1361 fcf_rec
->fcf_indx
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
1362 /* FCF record priority */
1363 fcf_rec
->priority
= new_fcf_record
->fip_priority
;
1365 fcf_rec
->switch_name
[0] =
1366 bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
);
1367 fcf_rec
->switch_name
[1] =
1368 bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
);
1369 fcf_rec
->switch_name
[2] =
1370 bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
);
1371 fcf_rec
->switch_name
[3] =
1372 bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
);
1373 fcf_rec
->switch_name
[4] =
1374 bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
);
1375 fcf_rec
->switch_name
[5] =
1376 bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
);
1377 fcf_rec
->switch_name
[6] =
1378 bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
);
1379 fcf_rec
->switch_name
[7] =
1380 bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
);
1384 * lpfc_update_fcf_record - Update driver fcf record
1385 * @phba: pointer to lpfc hba data structure.
1386 * @fcf_rec: pointer to driver fcf record.
1387 * @new_fcf_record: pointer to hba fcf record.
1388 * @addr_mode: address mode to be set to the driver fcf record.
1389 * @vlan_id: vlan tag to be set to the driver fcf record.
1390 * @flag: flag bits to be set to the driver fcf record.
1392 * This routine updates the driver FCF record from the new HBA FCF record
1393 * together with the address mode, vlan_id, and other informations. This
1394 * routine is called with the host lock held.
1397 __lpfc_update_fcf_record(struct lpfc_hba
*phba
, struct lpfc_fcf_rec
*fcf_rec
,
1398 struct fcf_record
*new_fcf_record
, uint32_t addr_mode
,
1399 uint16_t vlan_id
, uint32_t flag
)
1401 /* Copy the fields from the HBA's FCF record */
1402 lpfc_copy_fcf_record(fcf_rec
, new_fcf_record
);
1403 /* Update other fields of driver FCF record */
1404 fcf_rec
->addr_mode
= addr_mode
;
1405 fcf_rec
->vlan_id
= vlan_id
;
1406 fcf_rec
->flag
|= (flag
| RECORD_VALID
);
1407 __lpfc_update_fcf_record_pri(phba
,
1408 bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
),
1413 * lpfc_register_fcf - Register the FCF with hba.
1414 * @phba: pointer to lpfc hba data structure.
1416 * This routine issues a register fcfi mailbox command to register
1420 lpfc_register_fcf(struct lpfc_hba
*phba
)
1422 LPFC_MBOXQ_t
*fcf_mbxq
;
1425 spin_lock_irq(&phba
->hbalock
);
1426 /* If the FCF is not available do nothing. */
1427 if (!(phba
->fcf
.fcf_flag
& FCF_AVAILABLE
)) {
1428 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1429 spin_unlock_irq(&phba
->hbalock
);
1433 /* The FCF is already registered, start discovery */
1434 if (phba
->fcf
.fcf_flag
& FCF_REGISTERED
) {
1435 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1436 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1437 if (phba
->pport
->port_state
!= LPFC_FLOGI
&&
1438 phba
->pport
->fc_flag
& FC_FABRIC
) {
1439 phba
->hba_flag
|= FCF_RR_INPROG
;
1440 spin_unlock_irq(&phba
->hbalock
);
1441 lpfc_initial_flogi(phba
->pport
);
1444 spin_unlock_irq(&phba
->hbalock
);
1447 spin_unlock_irq(&phba
->hbalock
);
1449 fcf_mbxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1451 spin_lock_irq(&phba
->hbalock
);
1452 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1453 spin_unlock_irq(&phba
->hbalock
);
1457 lpfc_reg_fcfi(phba
, fcf_mbxq
);
1458 fcf_mbxq
->vport
= phba
->pport
;
1459 fcf_mbxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_fcfi
;
1460 rc
= lpfc_sli_issue_mbox(phba
, fcf_mbxq
, MBX_NOWAIT
);
1461 if (rc
== MBX_NOT_FINISHED
) {
1462 spin_lock_irq(&phba
->hbalock
);
1463 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1464 spin_unlock_irq(&phba
->hbalock
);
1465 mempool_free(fcf_mbxq
, phba
->mbox_mem_pool
);
1472 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1473 * @phba: pointer to lpfc hba data structure.
1474 * @new_fcf_record: pointer to fcf record.
1475 * @boot_flag: Indicates if this record used by boot bios.
1476 * @addr_mode: The address mode to be used by this FCF
1477 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1479 * This routine compare the fcf record with connect list obtained from the
1480 * config region to decide if this FCF can be used for SAN discovery. It returns
1481 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1482 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1483 * is used by boot bios and addr_mode will indicate the addressing mode to be
1484 * used for this FCF when the function returns.
1485 * If the FCF record need to be used with a particular vlan id, the vlan is
1486 * set in the vlan_id on return of the function. If not VLAN tagging need to
1487 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1490 lpfc_match_fcf_conn_list(struct lpfc_hba
*phba
,
1491 struct fcf_record
*new_fcf_record
,
1492 uint32_t *boot_flag
, uint32_t *addr_mode
,
1495 struct lpfc_fcf_conn_entry
*conn_entry
;
1496 int i
, j
, fcf_vlan_id
= 0;
1498 /* Find the lowest VLAN id in the FCF record */
1499 for (i
= 0; i
< 512; i
++) {
1500 if (new_fcf_record
->vlan_bitmap
[i
]) {
1501 fcf_vlan_id
= i
* 8;
1503 while (!((new_fcf_record
->vlan_bitmap
[i
] >> j
) & 1)) {
1511 /* FCF not valid/available or solicitation in progress */
1512 if (!bf_get(lpfc_fcf_record_fcf_avail
, new_fcf_record
) ||
1513 !bf_get(lpfc_fcf_record_fcf_valid
, new_fcf_record
) ||
1514 bf_get(lpfc_fcf_record_fcf_sol
, new_fcf_record
))
1517 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
1519 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1521 if (phba
->valid_vlan
)
1522 *vlan_id
= phba
->vlan_id
;
1524 *vlan_id
= LPFC_FCOE_NULL_VID
;
1529 * If there are no FCF connection table entry, driver connect to all
1532 if (list_empty(&phba
->fcf_conn_rec_list
)) {
1534 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1538 * When there are no FCF connect entries, use driver's default
1539 * addressing mode - FPMA.
1541 if (*addr_mode
& LPFC_FCF_FPMA
)
1542 *addr_mode
= LPFC_FCF_FPMA
;
1544 /* If FCF record report a vlan id use that vlan id */
1546 *vlan_id
= fcf_vlan_id
;
1548 *vlan_id
= LPFC_FCOE_NULL_VID
;
1552 list_for_each_entry(conn_entry
,
1553 &phba
->fcf_conn_rec_list
, list
) {
1554 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_VALID
))
1557 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_FBNM_VALID
) &&
1558 !lpfc_fab_name_match(conn_entry
->conn_rec
.fabric_name
,
1561 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_SWNM_VALID
) &&
1562 !lpfc_sw_name_match(conn_entry
->conn_rec
.switch_name
,
1565 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
) {
1567 * If the vlan bit map does not have the bit set for the
1568 * vlan id to be used, then it is not a match.
1570 if (!(new_fcf_record
->vlan_bitmap
1571 [conn_entry
->conn_rec
.vlan_tag
/ 8] &
1572 (1 << (conn_entry
->conn_rec
.vlan_tag
% 8))))
1577 * If connection record does not support any addressing mode,
1578 * skip the FCF record.
1580 if (!(bf_get(lpfc_fcf_record_mac_addr_prov
, new_fcf_record
)
1581 & (LPFC_FCF_FPMA
| LPFC_FCF_SPMA
)))
1585 * Check if the connection record specifies a required
1588 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1589 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)) {
1592 * If SPMA required but FCF not support this continue.
1594 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1595 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1596 new_fcf_record
) & LPFC_FCF_SPMA
))
1600 * If FPMA required but FCF not support this continue.
1602 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1603 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1604 new_fcf_record
) & LPFC_FCF_FPMA
))
1609 * This fcf record matches filtering criteria.
1611 if (conn_entry
->conn_rec
.flags
& FCFCNCT_BOOT
)
1617 * If user did not specify any addressing mode, or if the
1618 * preferred addressing mode specified by user is not supported
1619 * by FCF, allow fabric to pick the addressing mode.
1621 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1624 * If the user specified a required address mode, assign that
1627 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1628 (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)))
1629 *addr_mode
= (conn_entry
->conn_rec
.flags
&
1631 LPFC_FCF_SPMA
: LPFC_FCF_FPMA
;
1633 * If the user specified a preferred address mode, use the
1634 * addr mode only if FCF support the addr_mode.
1636 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1637 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1638 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1639 (*addr_mode
& LPFC_FCF_SPMA
))
1640 *addr_mode
= LPFC_FCF_SPMA
;
1641 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1642 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1643 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1644 (*addr_mode
& LPFC_FCF_FPMA
))
1645 *addr_mode
= LPFC_FCF_FPMA
;
1647 /* If matching connect list has a vlan id, use it */
1648 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
)
1649 *vlan_id
= conn_entry
->conn_rec
.vlan_tag
;
1651 * If no vlan id is specified in connect list, use the vlan id
1654 else if (fcf_vlan_id
)
1655 *vlan_id
= fcf_vlan_id
;
1657 *vlan_id
= LPFC_FCOE_NULL_VID
;
1666 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1667 * @phba: pointer to lpfc hba data structure.
1668 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1670 * This function check if there is any fcoe event pending while driver
1671 * scan FCF entries. If there is any pending event, it will restart the
1672 * FCF saning and return 1 else return 0.
1675 lpfc_check_pending_fcoe_event(struct lpfc_hba
*phba
, uint8_t unreg_fcf
)
1678 * If the Link is up and no FCoE events while in the
1679 * FCF discovery, no need to restart FCF discovery.
1681 if ((phba
->link_state
>= LPFC_LINK_UP
) &&
1682 (phba
->fcoe_eventtag
== phba
->fcoe_eventtag_at_fcf_scan
))
1685 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1686 "2768 Pending link or FCF event during current "
1687 "handling of the previous event: link_state:x%x, "
1688 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1689 phba
->link_state
, phba
->fcoe_eventtag_at_fcf_scan
,
1690 phba
->fcoe_eventtag
);
1692 spin_lock_irq(&phba
->hbalock
);
1693 phba
->fcf
.fcf_flag
&= ~FCF_AVAILABLE
;
1694 spin_unlock_irq(&phba
->hbalock
);
1696 if (phba
->link_state
>= LPFC_LINK_UP
) {
1697 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1698 "2780 Restart FCF table scan due to "
1699 "pending FCF event:evt_tag_at_scan:x%x, "
1700 "evt_tag_current:x%x\n",
1701 phba
->fcoe_eventtag_at_fcf_scan
,
1702 phba
->fcoe_eventtag
);
1703 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
1706 * Do not continue FCF discovery and clear FCF_TS_INPROG
1709 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1710 "2833 Stop FCF discovery process due to link "
1711 "state change (x%x)\n", phba
->link_state
);
1712 spin_lock_irq(&phba
->hbalock
);
1713 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1714 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_FOV
| FCF_DISCOVERY
);
1715 spin_unlock_irq(&phba
->hbalock
);
1718 /* Unregister the currently registered FCF if required */
1720 spin_lock_irq(&phba
->hbalock
);
1721 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
1722 spin_unlock_irq(&phba
->hbalock
);
1723 lpfc_sli4_unregister_fcf(phba
);
1729 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1730 * @phba: pointer to lpfc hba data structure.
1731 * @fcf_cnt: number of eligible fcf record seen so far.
1733 * This function makes an running random selection decision on FCF record to
1734 * use through a sequence of @fcf_cnt eligible FCF records with equal
1735 * probability. To perform integer manunipulation of random numbers with
1736 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1737 * from prandom_u32() are taken as the random random number generated.
1739 * Returns true when outcome is for the newly read FCF record should be
1740 * chosen; otherwise, return false when outcome is for keeping the previously
1741 * chosen FCF record.
1744 lpfc_sli4_new_fcf_random_select(struct lpfc_hba
*phba
, uint32_t fcf_cnt
)
1748 /* Get 16-bit uniform random number */
1749 rand_num
= 0xFFFF & prandom_u32();
1751 /* Decision with probability 1/fcf_cnt */
1752 if ((fcf_cnt
* rand_num
) < 0xFFFF)
1759 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1760 * @phba: pointer to lpfc hba data structure.
1761 * @mboxq: pointer to mailbox object.
1762 * @next_fcf_index: pointer to holder of next fcf index.
1764 * This routine parses the non-embedded fcf mailbox command by performing the
1765 * necessarily error checking, non-embedded read FCF record mailbox command
1766 * SGE parsing, and endianness swapping.
1768 * Returns the pointer to the new FCF record in the non-embedded mailbox
1769 * command DMA memory if successfully, other NULL.
1771 static struct fcf_record
*
1772 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
1773 uint16_t *next_fcf_index
)
1776 dma_addr_t phys_addr
;
1777 struct lpfc_mbx_sge sge
;
1778 struct lpfc_mbx_read_fcf_tbl
*read_fcf
;
1779 uint32_t shdr_status
, shdr_add_status
;
1780 union lpfc_sli4_cfg_shdr
*shdr
;
1781 struct fcf_record
*new_fcf_record
;
1783 /* Get the first SGE entry from the non-embedded DMA memory. This
1784 * routine only uses a single SGE.
1786 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
1787 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
1788 if (unlikely(!mboxq
->sge_array
)) {
1789 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1790 "2524 Failed to get the non-embedded SGE "
1791 "virtual address\n");
1794 virt_addr
= mboxq
->sge_array
->addr
[0];
1796 shdr
= (union lpfc_sli4_cfg_shdr
*)virt_addr
;
1797 lpfc_sli_pcimem_bcopy(shdr
, shdr
,
1798 sizeof(union lpfc_sli4_cfg_shdr
));
1799 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
1800 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
1801 if (shdr_status
|| shdr_add_status
) {
1802 if (shdr_status
== STATUS_FCF_TABLE_EMPTY
)
1803 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1804 "2726 READ_FCF_RECORD Indicates empty "
1807 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1808 "2521 READ_FCF_RECORD mailbox failed "
1809 "with status x%x add_status x%x, "
1810 "mbx\n", shdr_status
, shdr_add_status
);
1814 /* Interpreting the returned information of the FCF record */
1815 read_fcf
= (struct lpfc_mbx_read_fcf_tbl
*)virt_addr
;
1816 lpfc_sli_pcimem_bcopy(read_fcf
, read_fcf
,
1817 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1818 *next_fcf_index
= bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx
, read_fcf
);
1819 new_fcf_record
= (struct fcf_record
*)(virt_addr
+
1820 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1821 lpfc_sli_pcimem_bcopy(new_fcf_record
, new_fcf_record
,
1822 offsetof(struct fcf_record
, vlan_bitmap
));
1823 new_fcf_record
->word137
= le32_to_cpu(new_fcf_record
->word137
);
1824 new_fcf_record
->word138
= le32_to_cpu(new_fcf_record
->word138
);
1826 return new_fcf_record
;
1830 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1831 * @phba: pointer to lpfc hba data structure.
1832 * @fcf_record: pointer to the fcf record.
1833 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1834 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1836 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1840 lpfc_sli4_log_fcf_record_info(struct lpfc_hba
*phba
,
1841 struct fcf_record
*fcf_record
,
1843 uint16_t next_fcf_index
)
1845 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1846 "2764 READ_FCF_RECORD:\n"
1847 "\tFCF_Index : x%x\n"
1848 "\tFCF_Avail : x%x\n"
1849 "\tFCF_Valid : x%x\n"
1851 "\tFIP_Priority : x%x\n"
1852 "\tMAC_Provider : x%x\n"
1853 "\tLowest VLANID : x%x\n"
1854 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1855 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1856 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1857 "\tNext_FCF_Index: x%x\n",
1858 bf_get(lpfc_fcf_record_fcf_index
, fcf_record
),
1859 bf_get(lpfc_fcf_record_fcf_avail
, fcf_record
),
1860 bf_get(lpfc_fcf_record_fcf_valid
, fcf_record
),
1861 bf_get(lpfc_fcf_record_fcf_sol
, fcf_record
),
1862 fcf_record
->fip_priority
,
1863 bf_get(lpfc_fcf_record_mac_addr_prov
, fcf_record
),
1865 bf_get(lpfc_fcf_record_mac_0
, fcf_record
),
1866 bf_get(lpfc_fcf_record_mac_1
, fcf_record
),
1867 bf_get(lpfc_fcf_record_mac_2
, fcf_record
),
1868 bf_get(lpfc_fcf_record_mac_3
, fcf_record
),
1869 bf_get(lpfc_fcf_record_mac_4
, fcf_record
),
1870 bf_get(lpfc_fcf_record_mac_5
, fcf_record
),
1871 bf_get(lpfc_fcf_record_fab_name_0
, fcf_record
),
1872 bf_get(lpfc_fcf_record_fab_name_1
, fcf_record
),
1873 bf_get(lpfc_fcf_record_fab_name_2
, fcf_record
),
1874 bf_get(lpfc_fcf_record_fab_name_3
, fcf_record
),
1875 bf_get(lpfc_fcf_record_fab_name_4
, fcf_record
),
1876 bf_get(lpfc_fcf_record_fab_name_5
, fcf_record
),
1877 bf_get(lpfc_fcf_record_fab_name_6
, fcf_record
),
1878 bf_get(lpfc_fcf_record_fab_name_7
, fcf_record
),
1879 bf_get(lpfc_fcf_record_switch_name_0
, fcf_record
),
1880 bf_get(lpfc_fcf_record_switch_name_1
, fcf_record
),
1881 bf_get(lpfc_fcf_record_switch_name_2
, fcf_record
),
1882 bf_get(lpfc_fcf_record_switch_name_3
, fcf_record
),
1883 bf_get(lpfc_fcf_record_switch_name_4
, fcf_record
),
1884 bf_get(lpfc_fcf_record_switch_name_5
, fcf_record
),
1885 bf_get(lpfc_fcf_record_switch_name_6
, fcf_record
),
1886 bf_get(lpfc_fcf_record_switch_name_7
, fcf_record
),
1891 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1892 * @phba: pointer to lpfc hba data structure.
1893 * @fcf_rec: pointer to an existing FCF record.
1894 * @new_fcf_record: pointer to a new FCF record.
1895 * @new_vlan_id: vlan id from the new FCF record.
1897 * This function performs matching test of a new FCF record against an existing
1898 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1899 * will not be used as part of the FCF record matching criteria.
1901 * Returns true if all the fields matching, otherwise returns false.
1904 lpfc_sli4_fcf_record_match(struct lpfc_hba
*phba
,
1905 struct lpfc_fcf_rec
*fcf_rec
,
1906 struct fcf_record
*new_fcf_record
,
1907 uint16_t new_vlan_id
)
1909 if (new_vlan_id
!= LPFC_FCOE_IGNORE_VID
)
1910 if (!lpfc_vlan_id_match(fcf_rec
->vlan_id
, new_vlan_id
))
1912 if (!lpfc_mac_addr_match(fcf_rec
->mac_addr
, new_fcf_record
))
1914 if (!lpfc_sw_name_match(fcf_rec
->switch_name
, new_fcf_record
))
1916 if (!lpfc_fab_name_match(fcf_rec
->fabric_name
, new_fcf_record
))
1918 if (fcf_rec
->priority
!= new_fcf_record
->fip_priority
)
1924 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1925 * @vport: Pointer to vport object.
1926 * @fcf_index: index to next fcf.
1928 * This function processing the roundrobin fcf failover to next fcf index.
1929 * When this function is invoked, there will be a current fcf registered
1931 * Return: 0 for continue retrying flogi on currently registered fcf;
1932 * 1 for stop flogi on currently registered fcf;
1934 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport
*vport
, uint16_t fcf_index
)
1936 struct lpfc_hba
*phba
= vport
->phba
;
1939 if (fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
) {
1940 spin_lock_irq(&phba
->hbalock
);
1941 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
1942 spin_unlock_irq(&phba
->hbalock
);
1943 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1944 "2872 Devloss tmo with no eligible "
1945 "FCF, unregister in-use FCF (x%x) "
1946 "and rescan FCF table\n",
1947 phba
->fcf
.current_rec
.fcf_indx
);
1948 lpfc_unregister_fcf_rescan(phba
);
1949 goto stop_flogi_current_fcf
;
1951 /* Mark the end to FLOGI roundrobin failover */
1952 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1953 /* Allow action to new fcf asynchronous event */
1954 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
1955 spin_unlock_irq(&phba
->hbalock
);
1956 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1957 "2865 No FCF available, stop roundrobin FCF "
1958 "failover and change port state:x%x/x%x\n",
1959 phba
->pport
->port_state
, LPFC_VPORT_UNKNOWN
);
1960 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
1961 goto stop_flogi_current_fcf
;
1963 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_ELS
,
1964 "2794 Try FLOGI roundrobin FCF failover to "
1965 "(x%x)\n", fcf_index
);
1966 rc
= lpfc_sli4_fcf_rr_read_fcf_rec(phba
, fcf_index
);
1968 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
1969 "2761 FLOGI roundrobin FCF failover "
1970 "failed (rc:x%x) to read FCF (x%x)\n",
1971 rc
, phba
->fcf
.current_rec
.fcf_indx
);
1973 goto stop_flogi_current_fcf
;
1977 stop_flogi_current_fcf
:
1978 lpfc_can_disctmo(vport
);
1983 * lpfc_sli4_fcf_pri_list_del
1984 * @phba: pointer to lpfc hba data structure.
1985 * @fcf_index the index of the fcf record to delete
1986 * This routine checks the on list flag of the fcf_index to be deleted.
1987 * If it is one the list then it is removed from the list, and the flag
1988 * is cleared. This routine grab the hbalock before removing the fcf
1989 * record from the list.
1991 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba
*phba
,
1994 struct lpfc_fcf_pri
*new_fcf_pri
;
1996 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
1997 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1998 "3058 deleting idx x%x pri x%x flg x%x\n",
1999 fcf_index
, new_fcf_pri
->fcf_rec
.priority
,
2000 new_fcf_pri
->fcf_rec
.flag
);
2001 spin_lock_irq(&phba
->hbalock
);
2002 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
) {
2003 if (phba
->fcf
.current_rec
.priority
==
2004 new_fcf_pri
->fcf_rec
.priority
)
2005 phba
->fcf
.eligible_fcf_cnt
--;
2006 list_del_init(&new_fcf_pri
->list
);
2007 new_fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_ON_PRI_LIST
;
2009 spin_unlock_irq(&phba
->hbalock
);
2013 * lpfc_sli4_set_fcf_flogi_fail
2014 * @phba: pointer to lpfc hba data structure.
2015 * @fcf_index the index of the fcf record to update
2016 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2017 * flag so the the round robin slection for the particular priority level
2018 * will try a different fcf record that does not have this bit set.
2019 * If the fcf record is re-read for any reason this flag is cleared brfore
2020 * adding it to the priority list.
2023 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba
*phba
, uint16_t fcf_index
)
2025 struct lpfc_fcf_pri
*new_fcf_pri
;
2026 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2027 spin_lock_irq(&phba
->hbalock
);
2028 new_fcf_pri
->fcf_rec
.flag
|= LPFC_FCF_FLOGI_FAILED
;
2029 spin_unlock_irq(&phba
->hbalock
);
2033 * lpfc_sli4_fcf_pri_list_add
2034 * @phba: pointer to lpfc hba data structure.
2035 * @fcf_index the index of the fcf record to add
2036 * This routine checks the priority of the fcf_index to be added.
2037 * If it is a lower priority than the current head of the fcf_pri list
2038 * then it is added to the list in the right order.
2039 * If it is the same priority as the current head of the list then it
2040 * is added to the head of the list and its bit in the rr_bmask is set.
2041 * If the fcf_index to be added is of a higher priority than the current
2042 * head of the list then the rr_bmask is cleared, its bit is set in the
2043 * rr_bmask and it is added to the head of the list.
2045 * 0=success 1=failure
2047 int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba
*phba
, uint16_t fcf_index
,
2048 struct fcf_record
*new_fcf_record
)
2050 uint16_t current_fcf_pri
;
2051 uint16_t last_index
;
2052 struct lpfc_fcf_pri
*fcf_pri
;
2053 struct lpfc_fcf_pri
*next_fcf_pri
;
2054 struct lpfc_fcf_pri
*new_fcf_pri
;
2057 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2058 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2059 "3059 adding idx x%x pri x%x flg x%x\n",
2060 fcf_index
, new_fcf_record
->fip_priority
,
2061 new_fcf_pri
->fcf_rec
.flag
);
2062 spin_lock_irq(&phba
->hbalock
);
2063 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
)
2064 list_del_init(&new_fcf_pri
->list
);
2065 new_fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
2066 new_fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
2067 if (list_empty(&phba
->fcf
.fcf_pri_list
)) {
2068 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2069 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2070 new_fcf_pri
->fcf_rec
.fcf_index
);
2074 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
2075 LPFC_SLI4_FCF_TBL_INDX_MAX
);
2076 if (last_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
2077 ret
= 0; /* Empty rr list */
2080 current_fcf_pri
= phba
->fcf
.fcf_pri
[last_index
].fcf_rec
.priority
;
2081 if (new_fcf_pri
->fcf_rec
.priority
<= current_fcf_pri
) {
2082 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2083 if (new_fcf_pri
->fcf_rec
.priority
< current_fcf_pri
) {
2084 memset(phba
->fcf
.fcf_rr_bmask
, 0,
2085 sizeof(*phba
->fcf
.fcf_rr_bmask
));
2086 /* fcfs_at_this_priority_level = 1; */
2087 phba
->fcf
.eligible_fcf_cnt
= 1;
2089 /* fcfs_at_this_priority_level++; */
2090 phba
->fcf
.eligible_fcf_cnt
++;
2091 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2092 new_fcf_pri
->fcf_rec
.fcf_index
);
2096 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
2097 &phba
->fcf
.fcf_pri_list
, list
) {
2098 if (new_fcf_pri
->fcf_rec
.priority
<=
2099 fcf_pri
->fcf_rec
.priority
) {
2100 if (fcf_pri
->list
.prev
== &phba
->fcf
.fcf_pri_list
)
2101 list_add(&new_fcf_pri
->list
,
2102 &phba
->fcf
.fcf_pri_list
);
2104 list_add(&new_fcf_pri
->list
,
2105 &((struct lpfc_fcf_pri
*)
2106 fcf_pri
->list
.prev
)->list
);
2109 } else if (fcf_pri
->list
.next
== &phba
->fcf
.fcf_pri_list
2110 || new_fcf_pri
->fcf_rec
.priority
<
2111 next_fcf_pri
->fcf_rec
.priority
) {
2112 list_add(&new_fcf_pri
->list
, &fcf_pri
->list
);
2116 if (new_fcf_pri
->fcf_rec
.priority
> fcf_pri
->fcf_rec
.priority
)
2122 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2123 new_fcf_pri
->fcf_rec
.flag
= LPFC_FCF_ON_PRI_LIST
;
2124 spin_unlock_irq(&phba
->hbalock
);
2129 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2130 * @phba: pointer to lpfc hba data structure.
2131 * @mboxq: pointer to mailbox object.
2133 * This function iterates through all the fcf records available in
2134 * HBA and chooses the optimal FCF record for discovery. After finding
2135 * the FCF for discovery it registers the FCF record and kicks start
2137 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2138 * use an FCF record which matches fabric name and mac address of the
2139 * currently used FCF record.
2140 * If the driver supports only one FCF, it will try to use the FCF record
2141 * used by BOOT_BIOS.
2144 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2146 struct fcf_record
*new_fcf_record
;
2147 uint32_t boot_flag
, addr_mode
;
2148 uint16_t fcf_index
, next_fcf_index
;
2149 struct lpfc_fcf_rec
*fcf_rec
= NULL
;
2152 bool select_new_fcf
;
2155 /* If there is pending FCoE event restart FCF table scan */
2156 if (lpfc_check_pending_fcoe_event(phba
, LPFC_SKIP_UNREG_FCF
)) {
2157 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2161 /* Parse the FCF record from the non-embedded mailbox command */
2162 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2164 if (!new_fcf_record
) {
2165 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2166 "2765 Mailbox command READ_FCF_RECORD "
2167 "failed to retrieve a FCF record.\n");
2168 /* Let next new FCF event trigger fast failover */
2169 spin_lock_irq(&phba
->hbalock
);
2170 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2171 spin_unlock_irq(&phba
->hbalock
);
2172 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2176 /* Check the FCF record against the connection list */
2177 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2178 &addr_mode
, &vlan_id
);
2180 /* Log the FCF record information if turned on */
2181 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2185 * If the fcf record does not match with connect list entries
2186 * read the next entry; otherwise, this is an eligible FCF
2187 * record for roundrobin FCF failover.
2190 lpfc_sli4_fcf_pri_list_del(phba
,
2191 bf_get(lpfc_fcf_record_fcf_index
,
2193 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2194 "2781 FCF (x%x) failed connection "
2195 "list check: (x%x/x%x/%x)\n",
2196 bf_get(lpfc_fcf_record_fcf_index
,
2198 bf_get(lpfc_fcf_record_fcf_avail
,
2200 bf_get(lpfc_fcf_record_fcf_valid
,
2202 bf_get(lpfc_fcf_record_fcf_sol
,
2204 if ((phba
->fcf
.fcf_flag
& FCF_IN_USE
) &&
2205 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2206 new_fcf_record
, LPFC_FCOE_IGNORE_VID
)) {
2207 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) !=
2208 phba
->fcf
.current_rec
.fcf_indx
) {
2209 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2210 "2862 FCF (x%x) matches property "
2211 "of in-use FCF (x%x)\n",
2212 bf_get(lpfc_fcf_record_fcf_index
,
2214 phba
->fcf
.current_rec
.fcf_indx
);
2218 * In case the current in-use FCF record becomes
2219 * invalid/unavailable during FCF discovery that
2220 * was not triggered by fast FCF failover process,
2221 * treat it as fast FCF failover.
2223 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
) &&
2224 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2225 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2226 "2835 Invalid in-use FCF "
2227 "(x%x), enter FCF failover "
2229 phba
->fcf
.current_rec
.fcf_indx
);
2230 spin_lock_irq(&phba
->hbalock
);
2231 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2232 spin_unlock_irq(&phba
->hbalock
);
2233 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2234 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2235 LPFC_FCOE_FCF_GET_FIRST
);
2241 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2242 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
,
2249 * If this is not the first FCF discovery of the HBA, use last
2250 * FCF record for the discovery. The condition that a rescan
2251 * matches the in-use FCF record: fabric name, switch name, mac
2252 * address, and vlan_id.
2254 spin_lock_irq(&phba
->hbalock
);
2255 if (phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2256 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2257 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2258 new_fcf_record
, vlan_id
)) {
2259 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) ==
2260 phba
->fcf
.current_rec
.fcf_indx
) {
2261 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2262 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)
2263 /* Stop FCF redisc wait timer */
2264 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2266 else if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2267 /* Fast failover, mark completed */
2268 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2269 spin_unlock_irq(&phba
->hbalock
);
2270 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2271 "2836 New FCF matches in-use "
2272 "FCF (x%x), port_state:x%x, "
2274 phba
->fcf
.current_rec
.fcf_indx
,
2275 phba
->pport
->port_state
,
2276 phba
->pport
->fc_flag
);
2279 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2280 "2863 New FCF (x%x) matches "
2281 "property of in-use FCF (x%x)\n",
2282 bf_get(lpfc_fcf_record_fcf_index
,
2284 phba
->fcf
.current_rec
.fcf_indx
);
2287 * Read next FCF record from HBA searching for the matching
2288 * with in-use record only if not during the fast failover
2289 * period. In case of fast failover period, it shall try to
2290 * determine whether the FCF record just read should be the
2293 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2294 spin_unlock_irq(&phba
->hbalock
);
2299 * Update on failover FCF record only if it's in FCF fast-failover
2300 * period; otherwise, update on current FCF record.
2302 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2303 fcf_rec
= &phba
->fcf
.failover_rec
;
2305 fcf_rec
= &phba
->fcf
.current_rec
;
2307 if (phba
->fcf
.fcf_flag
& FCF_AVAILABLE
) {
2309 * If the driver FCF record does not have boot flag
2310 * set and new hba fcf record has boot flag set, use
2311 * the new hba fcf record.
2313 if (boot_flag
&& !(fcf_rec
->flag
& BOOT_ENABLE
)) {
2314 /* Choose this FCF record */
2315 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2316 "2837 Update current FCF record "
2317 "(x%x) with new FCF record (x%x)\n",
2319 bf_get(lpfc_fcf_record_fcf_index
,
2321 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2322 addr_mode
, vlan_id
, BOOT_ENABLE
);
2323 spin_unlock_irq(&phba
->hbalock
);
2327 * If the driver FCF record has boot flag set and the
2328 * new hba FCF record does not have boot flag, read
2329 * the next FCF record.
2331 if (!boot_flag
&& (fcf_rec
->flag
& BOOT_ENABLE
)) {
2332 spin_unlock_irq(&phba
->hbalock
);
2336 * If the new hba FCF record has lower priority value
2337 * than the driver FCF record, use the new record.
2339 if (new_fcf_record
->fip_priority
< fcf_rec
->priority
) {
2340 /* Choose the new FCF record with lower priority */
2341 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2342 "2838 Update current FCF record "
2343 "(x%x) with new FCF record (x%x)\n",
2345 bf_get(lpfc_fcf_record_fcf_index
,
2347 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2348 addr_mode
, vlan_id
, 0);
2349 /* Reset running random FCF selection count */
2350 phba
->fcf
.eligible_fcf_cnt
= 1;
2351 } else if (new_fcf_record
->fip_priority
== fcf_rec
->priority
) {
2352 /* Update running random FCF selection count */
2353 phba
->fcf
.eligible_fcf_cnt
++;
2354 select_new_fcf
= lpfc_sli4_new_fcf_random_select(phba
,
2355 phba
->fcf
.eligible_fcf_cnt
);
2356 if (select_new_fcf
) {
2357 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2358 "2839 Update current FCF record "
2359 "(x%x) with new FCF record (x%x)\n",
2361 bf_get(lpfc_fcf_record_fcf_index
,
2363 /* Choose the new FCF by random selection */
2364 __lpfc_update_fcf_record(phba
, fcf_rec
,
2366 addr_mode
, vlan_id
, 0);
2369 spin_unlock_irq(&phba
->hbalock
);
2373 * This is the first suitable FCF record, choose this record for
2374 * initial best-fit FCF.
2377 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2378 "2840 Update initial FCF candidate "
2380 bf_get(lpfc_fcf_record_fcf_index
,
2382 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2383 addr_mode
, vlan_id
, (boot_flag
?
2385 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2386 /* Setup initial running random FCF selection count */
2387 phba
->fcf
.eligible_fcf_cnt
= 1;
2388 /* Seeding the random number generator for random selection */
2389 seed
= (uint32_t)(0xFFFFFFFF & jiffies
);
2392 spin_unlock_irq(&phba
->hbalock
);
2396 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2397 if (next_fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
|| next_fcf_index
== 0) {
2398 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
) {
2400 * Case of FCF fast failover scan
2404 * It has not found any suitable FCF record, cancel
2405 * FCF scan inprogress, and do nothing
2407 if (!(phba
->fcf
.failover_rec
.flag
& RECORD_VALID
)) {
2408 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2409 "2782 No suitable FCF found: "
2411 phba
->fcoe_eventtag_at_fcf_scan
,
2412 bf_get(lpfc_fcf_record_fcf_index
,
2414 spin_lock_irq(&phba
->hbalock
);
2415 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
2416 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2417 spin_unlock_irq(&phba
->hbalock
);
2418 /* Unregister in-use FCF and rescan */
2419 lpfc_printf_log(phba
, KERN_INFO
,
2421 "2864 On devloss tmo "
2422 "unreg in-use FCF and "
2423 "rescan FCF table\n");
2424 lpfc_unregister_fcf_rescan(phba
);
2428 * Let next new FCF event trigger fast failover
2430 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2431 spin_unlock_irq(&phba
->hbalock
);
2435 * It has found a suitable FCF record that is not
2436 * the same as in-use FCF record, unregister the
2437 * in-use FCF record, replace the in-use FCF record
2438 * with the new FCF record, mark FCF fast failover
2439 * completed, and then start register the new FCF
2443 /* Unregister the current in-use FCF record */
2444 lpfc_unregister_fcf(phba
);
2446 /* Replace in-use record with the new record */
2447 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2448 "2842 Replace in-use FCF (x%x) "
2449 "with failover FCF (x%x)\n",
2450 phba
->fcf
.current_rec
.fcf_indx
,
2451 phba
->fcf
.failover_rec
.fcf_indx
);
2452 memcpy(&phba
->fcf
.current_rec
,
2453 &phba
->fcf
.failover_rec
,
2454 sizeof(struct lpfc_fcf_rec
));
2456 * Mark the fast FCF failover rediscovery completed
2457 * and the start of the first round of the roundrobin
2460 spin_lock_irq(&phba
->hbalock
);
2461 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2462 spin_unlock_irq(&phba
->hbalock
);
2463 /* Register to the new FCF record */
2464 lpfc_register_fcf(phba
);
2467 * In case of transaction period to fast FCF failover,
2468 * do nothing when search to the end of the FCF table.
2470 if ((phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) ||
2471 (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
))
2474 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2475 phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2477 * In case the current in-use FCF record no
2478 * longer existed during FCF discovery that
2479 * was not triggered by fast FCF failover
2480 * process, treat it as fast FCF failover.
2482 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2483 "2841 In-use FCF record (x%x) "
2484 "not reported, entering fast "
2485 "FCF failover mode scanning.\n",
2486 phba
->fcf
.current_rec
.fcf_indx
);
2487 spin_lock_irq(&phba
->hbalock
);
2488 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2489 spin_unlock_irq(&phba
->hbalock
);
2490 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2491 LPFC_FCOE_FCF_GET_FIRST
);
2494 /* Register to the new FCF record */
2495 lpfc_register_fcf(phba
);
2498 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, next_fcf_index
);
2502 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2503 lpfc_register_fcf(phba
);
2509 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2510 * @phba: pointer to lpfc hba data structure.
2511 * @mboxq: pointer to mailbox object.
2513 * This is the callback function for FLOGI failure roundrobin FCF failover
2514 * read FCF record mailbox command from the eligible FCF record bmask for
2515 * performing the failover. If the FCF read back is not valid/available, it
2516 * fails through to retrying FLOGI to the currently registered FCF again.
2517 * Otherwise, if the FCF read back is valid and available, it will set the
2518 * newly read FCF record to the failover FCF record, unregister currently
2519 * registered FCF record, copy the failover FCF record to the current
2520 * FCF record, and then register the current FCF record before proceeding
2521 * to trying FLOGI on the new failover FCF.
2524 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2526 struct fcf_record
*new_fcf_record
;
2527 uint32_t boot_flag
, addr_mode
;
2528 uint16_t next_fcf_index
, fcf_index
;
2529 uint16_t current_fcf_index
;
2533 /* If link state is not up, stop the roundrobin failover process */
2534 if (phba
->link_state
< LPFC_LINK_UP
) {
2535 spin_lock_irq(&phba
->hbalock
);
2536 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
2537 phba
->hba_flag
&= ~FCF_RR_INPROG
;
2538 spin_unlock_irq(&phba
->hbalock
);
2542 /* Parse the FCF record from the non-embedded mailbox command */
2543 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2545 if (!new_fcf_record
) {
2546 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2547 "2766 Mailbox command READ_FCF_RECORD "
2548 "failed to retrieve a FCF record.\n");
2552 /* Get the needed parameters from FCF record */
2553 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2554 &addr_mode
, &vlan_id
);
2556 /* Log the FCF record information if turned on */
2557 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2560 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2562 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2563 "2848 Remove ineligible FCF (x%x) from "
2564 "from roundrobin bmask\n", fcf_index
);
2565 /* Clear roundrobin bmask bit for ineligible FCF */
2566 lpfc_sli4_fcf_rr_index_clear(phba
, fcf_index
);
2567 /* Perform next round of roundrobin FCF failover */
2568 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
2569 rc
= lpfc_sli4_fcf_rr_next_proc(phba
->pport
, fcf_index
);
2575 if (fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
2576 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2577 "2760 Perform FLOGI roundrobin FCF failover: "
2578 "FCF (x%x) back to FCF (x%x)\n",
2579 phba
->fcf
.current_rec
.fcf_indx
, fcf_index
);
2580 /* Wait 500 ms before retrying FLOGI to current FCF */
2582 lpfc_issue_init_vfi(phba
->pport
);
2586 /* Upload new FCF record to the failover FCF record */
2587 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2588 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2589 phba
->fcf
.failover_rec
.fcf_indx
, fcf_index
);
2590 spin_lock_irq(&phba
->hbalock
);
2591 __lpfc_update_fcf_record(phba
, &phba
->fcf
.failover_rec
,
2592 new_fcf_record
, addr_mode
, vlan_id
,
2593 (boot_flag
? BOOT_ENABLE
: 0));
2594 spin_unlock_irq(&phba
->hbalock
);
2596 current_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
2598 /* Unregister the current in-use FCF record */
2599 lpfc_unregister_fcf(phba
);
2601 /* Replace in-use record with the new record */
2602 memcpy(&phba
->fcf
.current_rec
, &phba
->fcf
.failover_rec
,
2603 sizeof(struct lpfc_fcf_rec
));
2605 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2606 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2607 "(x%x) to FCF (x%x)\n", current_fcf_index
, fcf_index
);
2610 lpfc_register_fcf(phba
);
2612 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2616 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2617 * @phba: pointer to lpfc hba data structure.
2618 * @mboxq: pointer to mailbox object.
2620 * This is the callback function of read FCF record mailbox command for
2621 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2622 * failover when a new FCF event happened. If the FCF read back is
2623 * valid/available and it passes the connection list check, it updates
2624 * the bmask for the eligible FCF record for roundrobin failover.
2627 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2629 struct fcf_record
*new_fcf_record
;
2630 uint32_t boot_flag
, addr_mode
;
2631 uint16_t fcf_index
, next_fcf_index
;
2635 /* If link state is not up, no need to proceed */
2636 if (phba
->link_state
< LPFC_LINK_UP
)
2639 /* If FCF discovery period is over, no need to proceed */
2640 if (!(phba
->fcf
.fcf_flag
& FCF_DISCOVERY
))
2643 /* Parse the FCF record from the non-embedded mailbox command */
2644 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2646 if (!new_fcf_record
) {
2647 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2648 "2767 Mailbox command READ_FCF_RECORD "
2649 "failed to retrieve a FCF record.\n");
2653 /* Check the connection list for eligibility */
2654 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2655 &addr_mode
, &vlan_id
);
2657 /* Log the FCF record information if turned on */
2658 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2664 /* Update the eligible FCF record index bmask */
2665 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2667 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
, new_fcf_record
);
2670 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2674 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2675 * @phba: pointer to lpfc hba data structure.
2676 * @mboxq: pointer to mailbox data structure.
2678 * This function handles completion of init vfi mailbox command.
2681 lpfc_init_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2683 struct lpfc_vport
*vport
= mboxq
->vport
;
2686 * VFI not supported on interface type 0, just do the flogi
2687 * Also continue if the VFI is in use - just use the same one.
2689 if (mboxq
->u
.mb
.mbxStatus
&&
2690 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2691 LPFC_SLI_INTF_IF_TYPE_0
) &&
2692 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2693 lpfc_printf_vlog(vport
, KERN_ERR
,
2695 "2891 Init VFI mailbox failed 0x%x\n",
2696 mboxq
->u
.mb
.mbxStatus
);
2697 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2698 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2702 lpfc_initial_flogi(vport
);
2703 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2708 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2709 * @vport: pointer to lpfc_vport data structure.
2711 * This function issue a init_vfi mailbox command to initialize the VFI and
2712 * VPI for the physical port.
2715 lpfc_issue_init_vfi(struct lpfc_vport
*vport
)
2717 LPFC_MBOXQ_t
*mboxq
;
2719 struct lpfc_hba
*phba
= vport
->phba
;
2721 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2723 lpfc_printf_vlog(vport
, KERN_ERR
,
2724 LOG_MBOX
, "2892 Failed to allocate "
2725 "init_vfi mailbox\n");
2728 lpfc_init_vfi(mboxq
, vport
);
2729 mboxq
->mbox_cmpl
= lpfc_init_vfi_cmpl
;
2730 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
2731 if (rc
== MBX_NOT_FINISHED
) {
2732 lpfc_printf_vlog(vport
, KERN_ERR
,
2733 LOG_MBOX
, "2893 Failed to issue init_vfi mailbox\n");
2734 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2739 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2740 * @phba: pointer to lpfc hba data structure.
2741 * @mboxq: pointer to mailbox data structure.
2743 * This function handles completion of init vpi mailbox command.
2746 lpfc_init_vpi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2748 struct lpfc_vport
*vport
= mboxq
->vport
;
2749 struct lpfc_nodelist
*ndlp
;
2750 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2752 if (mboxq
->u
.mb
.mbxStatus
) {
2753 lpfc_printf_vlog(vport
, KERN_ERR
,
2755 "2609 Init VPI mailbox failed 0x%x\n",
2756 mboxq
->u
.mb
.mbxStatus
);
2757 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2758 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2761 spin_lock_irq(shost
->host_lock
);
2762 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2763 spin_unlock_irq(shost
->host_lock
);
2765 /* If this port is physical port or FDISC is done, do reg_vpi */
2766 if ((phba
->pport
== vport
) || (vport
->port_state
== LPFC_FDISC
)) {
2767 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
2769 lpfc_printf_vlog(vport
, KERN_ERR
,
2771 "2731 Cannot find fabric "
2772 "controller node\n");
2774 lpfc_register_new_vport(phba
, vport
, ndlp
);
2775 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2779 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2780 lpfc_initial_fdisc(vport
);
2782 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
2783 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2784 "2606 No NPIV Fabric support\n");
2786 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2791 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2792 * @vport: pointer to lpfc_vport data structure.
2794 * This function issue a init_vpi mailbox command to initialize
2795 * VPI for the vport.
2798 lpfc_issue_init_vpi(struct lpfc_vport
*vport
)
2800 LPFC_MBOXQ_t
*mboxq
;
2803 if ((vport
->port_type
!= LPFC_PHYSICAL_PORT
) && (!vport
->vpi
)) {
2804 vpi
= lpfc_alloc_vpi(vport
->phba
);
2806 lpfc_printf_vlog(vport
, KERN_ERR
,
2808 "3303 Failed to obtain vport vpi\n");
2809 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2815 mboxq
= mempool_alloc(vport
->phba
->mbox_mem_pool
, GFP_KERNEL
);
2817 lpfc_printf_vlog(vport
, KERN_ERR
,
2818 LOG_MBOX
, "2607 Failed to allocate "
2819 "init_vpi mailbox\n");
2822 lpfc_init_vpi(vport
->phba
, mboxq
, vport
->vpi
);
2823 mboxq
->vport
= vport
;
2824 mboxq
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
2825 rc
= lpfc_sli_issue_mbox(vport
->phba
, mboxq
, MBX_NOWAIT
);
2826 if (rc
== MBX_NOT_FINISHED
) {
2827 lpfc_printf_vlog(vport
, KERN_ERR
,
2828 LOG_MBOX
, "2608 Failed to issue init_vpi mailbox\n");
2829 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2834 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2835 * @phba: pointer to lpfc hba data structure.
2837 * This function loops through the list of vports on the @phba and issues an
2838 * FDISC if possible.
2841 lpfc_start_fdiscs(struct lpfc_hba
*phba
)
2843 struct lpfc_vport
**vports
;
2846 vports
= lpfc_create_vport_work_array(phba
);
2847 if (vports
!= NULL
) {
2848 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2849 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
2851 /* There are no vpi for this vport */
2852 if (vports
[i
]->vpi
> phba
->max_vpi
) {
2853 lpfc_vport_set_state(vports
[i
],
2857 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2858 lpfc_vport_set_state(vports
[i
],
2862 if (vports
[i
]->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
) {
2863 lpfc_issue_init_vpi(vports
[i
]);
2866 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2867 lpfc_initial_fdisc(vports
[i
]);
2869 lpfc_vport_set_state(vports
[i
],
2870 FC_VPORT_NO_FABRIC_SUPP
);
2871 lpfc_printf_vlog(vports
[i
], KERN_ERR
,
2874 "Fabric support\n");
2878 lpfc_destroy_vport_work_array(phba
, vports
);
2882 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2884 struct lpfc_dmabuf
*dmabuf
= mboxq
->context1
;
2885 struct lpfc_vport
*vport
= mboxq
->vport
;
2886 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2889 * VFI not supported for interface type 0, so ignore any mailbox
2890 * error (except VFI in use) and continue with the discovery.
2892 if (mboxq
->u
.mb
.mbxStatus
&&
2893 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2894 LPFC_SLI_INTF_IF_TYPE_0
) &&
2895 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2896 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
2897 "2018 REG_VFI mbxStatus error x%x "
2899 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
2900 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2901 /* FLOGI failed, use loop map to make discovery list */
2902 lpfc_disc_list_loopmap(vport
);
2903 /* Start discovery */
2904 lpfc_disc_start(vport
);
2907 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2911 /* If the VFI is already registered, there is nothing else to do
2912 * Unless this was a VFI update and we are in PT2PT mode, then
2913 * we should drop through to set the port state to ready.
2915 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
2916 if (!(phba
->sli_rev
== LPFC_SLI_REV4
&&
2917 vport
->fc_flag
& FC_PT2PT
))
2920 /* The VPI is implicitly registered when the VFI is registered */
2921 spin_lock_irq(shost
->host_lock
);
2922 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2923 vport
->fc_flag
|= FC_VFI_REGISTERED
;
2924 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2925 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2926 spin_unlock_irq(shost
->host_lock
);
2928 /* In case SLI4 FC loopback test, we are ready */
2929 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
2930 (phba
->link_flag
& LS_LOOPBACK_MODE
)) {
2931 phba
->link_state
= LPFC_HBA_READY
;
2935 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
2936 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2937 "alpacnt:%d LinkState:%x topology:%x\n",
2938 vport
->port_state
, vport
->fc_flag
, vport
->fc_myDID
,
2939 vport
->phba
->alpa_map
[0],
2940 phba
->link_state
, phba
->fc_topology
);
2942 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
2944 * For private loop or for NPort pt2pt,
2945 * just start discovery and we are done.
2947 if ((vport
->fc_flag
& FC_PT2PT
) ||
2948 ((phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) &&
2949 !(vport
->fc_flag
& FC_PUBLIC_LOOP
))) {
2951 /* Use loop map to make discovery list */
2952 lpfc_disc_list_loopmap(vport
);
2953 /* Start discovery */
2954 if (vport
->fc_flag
& FC_PT2PT
)
2955 vport
->port_state
= LPFC_VPORT_READY
;
2957 lpfc_disc_start(vport
);
2959 lpfc_start_fdiscs(phba
);
2960 lpfc_do_scr_ns_plogi(phba
, vport
);
2965 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2966 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
2972 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2974 MAILBOX_t
*mb
= &pmb
->u
.mb
;
2975 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
2976 struct lpfc_vport
*vport
= pmb
->vport
;
2979 /* Check for error */
2980 if (mb
->mbxStatus
) {
2981 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
2982 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
2983 "0319 READ_SPARAM mbxStatus error x%x "
2985 mb
->mbxStatus
, vport
->port_state
);
2986 lpfc_linkdown(phba
);
2990 memcpy((uint8_t *) &vport
->fc_sparam
, (uint8_t *) mp
->virt
,
2991 sizeof (struct serv_parm
));
2992 lpfc_update_vport_wwn(vport
);
2993 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
2994 memcpy(&phba
->wwnn
, &vport
->fc_nodename
, sizeof(phba
->wwnn
));
2995 memcpy(&phba
->wwpn
, &vport
->fc_portname
, sizeof(phba
->wwnn
));
2998 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3000 mempool_free(pmb
, phba
->mbox_mem_pool
);
3004 pmb
->context1
= NULL
;
3005 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3007 lpfc_issue_clear_la(phba
, vport
);
3008 mempool_free(pmb
, phba
->mbox_mem_pool
);
3013 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, struct lpfc_mbx_read_top
*la
)
3015 struct lpfc_vport
*vport
= phba
->pport
;
3016 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
= NULL
;
3017 struct Scsi_Host
*shost
;
3019 struct lpfc_dmabuf
*mp
;
3021 struct fcf_record
*fcf_record
;
3022 uint32_t fc_flags
= 0;
3024 spin_lock_irq(&phba
->hbalock
);
3025 switch (bf_get(lpfc_mbx_read_top_link_spd
, la
)) {
3026 case LPFC_LINK_SPEED_1GHZ
:
3027 case LPFC_LINK_SPEED_2GHZ
:
3028 case LPFC_LINK_SPEED_4GHZ
:
3029 case LPFC_LINK_SPEED_8GHZ
:
3030 case LPFC_LINK_SPEED_10GHZ
:
3031 case LPFC_LINK_SPEED_16GHZ
:
3032 phba
->fc_linkspeed
= bf_get(lpfc_mbx_read_top_link_spd
, la
);
3035 phba
->fc_linkspeed
= LPFC_LINK_SPEED_UNKNOWN
;
3039 if (phba
->fc_topology
&&
3040 phba
->fc_topology
!= bf_get(lpfc_mbx_read_top_topology
, la
)) {
3041 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3042 "3314 Toplogy changed was 0x%x is 0x%x\n",
3044 bf_get(lpfc_mbx_read_top_topology
, la
));
3045 phba
->fc_topology_changed
= 1;
3048 phba
->fc_topology
= bf_get(lpfc_mbx_read_top_topology
, la
);
3049 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
3051 shost
= lpfc_shost_from_vport(vport
);
3052 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3053 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
3055 /* if npiv is enabled and this adapter supports npiv log
3056 * a message that npiv is not supported in this topology
3058 if (phba
->cfg_enable_npiv
&& phba
->max_vpi
)
3059 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3060 "1309 Link Up Event npiv not supported in loop "
3062 /* Get Loop Map information */
3063 if (bf_get(lpfc_mbx_read_top_il
, la
))
3064 fc_flags
|= FC_LBIT
;
3066 vport
->fc_myDID
= bf_get(lpfc_mbx_read_top_alpa_granted
, la
);
3067 i
= la
->lilpBde64
.tus
.f
.bdeSize
;
3070 phba
->alpa_map
[0] = 0;
3072 if (vport
->cfg_log_verbose
& LOG_LINK_EVENT
) {
3083 numalpa
= phba
->alpa_map
[0];
3085 while (j
< numalpa
) {
3086 memset(un
.pamap
, 0, 16);
3087 for (k
= 1; j
< numalpa
; k
++) {
3089 phba
->alpa_map
[j
+ 1];
3094 /* Link Up Event ALPA map */
3095 lpfc_printf_log(phba
,
3098 "1304 Link Up Event "
3099 "ALPA map Data: x%x "
3101 un
.pa
.wd1
, un
.pa
.wd2
,
3102 un
.pa
.wd3
, un
.pa
.wd4
);
3107 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)) {
3108 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
3109 (phba
->sli_rev
>= LPFC_SLI_REV3
))
3110 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3112 vport
->fc_myDID
= phba
->fc_pref_DID
;
3113 fc_flags
|= FC_LBIT
;
3115 spin_unlock_irq(&phba
->hbalock
);
3118 spin_lock_irq(shost
->host_lock
);
3119 vport
->fc_flag
|= fc_flags
;
3120 spin_unlock_irq(shost
->host_lock
);
3124 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3128 rc
= lpfc_read_sparam(phba
, sparam_mbox
, 0);
3130 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3133 sparam_mbox
->vport
= vport
;
3134 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
3135 rc
= lpfc_sli_issue_mbox(phba
, sparam_mbox
, MBX_NOWAIT
);
3136 if (rc
== MBX_NOT_FINISHED
) {
3137 mp
= (struct lpfc_dmabuf
*) sparam_mbox
->context1
;
3138 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3140 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3144 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3145 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3148 vport
->port_state
= LPFC_LOCAL_CFG_LINK
;
3149 lpfc_config_link(phba
, cfglink_mbox
);
3150 cfglink_mbox
->vport
= vport
;
3151 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
3152 rc
= lpfc_sli_issue_mbox(phba
, cfglink_mbox
, MBX_NOWAIT
);
3153 if (rc
== MBX_NOT_FINISHED
) {
3154 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
3158 vport
->port_state
= LPFC_VPORT_UNKNOWN
;
3160 * Add the driver's default FCF record at FCF index 0 now. This
3161 * is phase 1 implementation that support FCF index 0 and driver
3164 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
3165 fcf_record
= kzalloc(sizeof(struct fcf_record
),
3167 if (unlikely(!fcf_record
)) {
3168 lpfc_printf_log(phba
, KERN_ERR
,
3170 "2554 Could not allocate memory for "
3176 lpfc_sli4_build_dflt_fcf_record(phba
, fcf_record
,
3177 LPFC_FCOE_FCF_DEF_INDEX
);
3178 rc
= lpfc_sli4_add_fcf_record(phba
, fcf_record
);
3180 lpfc_printf_log(phba
, KERN_ERR
,
3182 "2013 Could not manually add FCF "
3183 "record 0, status %d\n", rc
);
3191 * The driver is expected to do FIP/FCF. Call the port
3192 * and get the FCF Table.
3194 spin_lock_irq(&phba
->hbalock
);
3195 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3196 spin_unlock_irq(&phba
->hbalock
);
3199 /* This is the initial FCF discovery scan */
3200 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
3201 spin_unlock_irq(&phba
->hbalock
);
3202 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3203 "2778 Start FCF table scan at linkup\n");
3204 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3205 LPFC_FCOE_FCF_GET_FIRST
);
3207 spin_lock_irq(&phba
->hbalock
);
3208 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
3209 spin_unlock_irq(&phba
->hbalock
);
3212 /* Reset FCF roundrobin bmask for new discovery */
3213 lpfc_sli4_clear_fcf_rr_bmask(phba
);
3218 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3219 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3220 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3221 vport
->port_state
, sparam_mbox
, cfglink_mbox
);
3222 lpfc_issue_clear_la(phba
, vport
);
3227 lpfc_enable_la(struct lpfc_hba
*phba
)
3230 struct lpfc_sli
*psli
= &phba
->sli
;
3231 spin_lock_irq(&phba
->hbalock
);
3232 psli
->sli_flag
|= LPFC_PROCESS_LA
;
3233 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
3234 control
= readl(phba
->HCregaddr
);
3235 control
|= HC_LAINT_ENA
;
3236 writel(control
, phba
->HCregaddr
);
3237 readl(phba
->HCregaddr
); /* flush */
3239 spin_unlock_irq(&phba
->hbalock
);
3243 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
)
3245 lpfc_linkdown(phba
);
3246 lpfc_enable_la(phba
);
3247 lpfc_unregister_unused_fcf(phba
);
3248 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3253 * This routine handles processing a READ_TOPOLOGY mailbox
3254 * command upon completion. It is setup in the LPFC_MBOXQ
3255 * as the completion routine when the command is
3256 * handed off to the SLI layer.
3259 lpfc_mbx_cmpl_read_topology(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3261 struct lpfc_vport
*vport
= pmb
->vport
;
3262 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3263 struct lpfc_mbx_read_top
*la
;
3264 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3265 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3267 /* Unblock ELS traffic */
3268 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
3269 /* Check for error */
3270 if (mb
->mbxStatus
) {
3271 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3272 "1307 READ_LA mbox error x%x state x%x\n",
3273 mb
->mbxStatus
, vport
->port_state
);
3274 lpfc_mbx_issue_link_down(phba
);
3275 phba
->link_state
= LPFC_HBA_ERROR
;
3276 goto lpfc_mbx_cmpl_read_topology_free_mbuf
;
3279 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3281 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
3283 spin_lock_irq(shost
->host_lock
);
3284 if (bf_get(lpfc_mbx_read_top_pb
, la
))
3285 vport
->fc_flag
|= FC_BYPASSED_MODE
;
3287 vport
->fc_flag
&= ~FC_BYPASSED_MODE
;
3288 spin_unlock_irq(shost
->host_lock
);
3290 if (phba
->fc_eventTag
<= la
->eventTag
) {
3291 phba
->fc_stat
.LinkMultiEvent
++;
3292 if (bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
)
3293 if (phba
->fc_eventTag
!= 0)
3294 lpfc_linkdown(phba
);
3297 phba
->fc_eventTag
= la
->eventTag
;
3298 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
3299 spin_lock_irq(&phba
->hbalock
);
3300 if (bf_get(lpfc_mbx_read_top_mm
, la
))
3301 phba
->sli
.sli_flag
|= LPFC_MENLO_MAINT
;
3303 phba
->sli
.sli_flag
&= ~LPFC_MENLO_MAINT
;
3304 spin_unlock_irq(&phba
->hbalock
);
3307 phba
->link_events
++;
3308 if ((bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
) &&
3309 !(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
)) {
3310 phba
->fc_stat
.LinkUp
++;
3311 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
3312 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3313 "1306 Link Up Event in loop back mode "
3314 "x%x received Data: x%x x%x x%x x%x\n",
3315 la
->eventTag
, phba
->fc_eventTag
,
3316 bf_get(lpfc_mbx_read_top_alpa_granted
,
3318 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3321 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3322 "1303 Link Up Event x%x received "
3323 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3324 la
->eventTag
, phba
->fc_eventTag
,
3325 bf_get(lpfc_mbx_read_top_alpa_granted
,
3327 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3329 bf_get(lpfc_mbx_read_top_mm
, la
),
3330 bf_get(lpfc_mbx_read_top_fa
, la
),
3331 phba
->wait_4_mlo_maint_flg
);
3333 lpfc_mbx_process_link_up(phba
, la
);
3334 } else if (bf_get(lpfc_mbx_read_top_att_type
, la
) ==
3335 LPFC_ATT_LINK_DOWN
) {
3336 phba
->fc_stat
.LinkDown
++;
3337 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
3338 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3339 "1308 Link Down Event in loop back mode "
3341 "Data: x%x x%x x%x\n",
3342 la
->eventTag
, phba
->fc_eventTag
,
3343 phba
->pport
->port_state
, vport
->fc_flag
);
3345 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3346 "1305 Link Down Event x%x received "
3347 "Data: x%x x%x x%x x%x x%x\n",
3348 la
->eventTag
, phba
->fc_eventTag
,
3349 phba
->pport
->port_state
, vport
->fc_flag
,
3350 bf_get(lpfc_mbx_read_top_mm
, la
),
3351 bf_get(lpfc_mbx_read_top_fa
, la
));
3352 lpfc_mbx_issue_link_down(phba
);
3354 if ((phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) &&
3355 ((bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
))) {
3356 if (phba
->link_state
!= LPFC_LINK_DOWN
) {
3357 phba
->fc_stat
.LinkDown
++;
3358 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3359 "1312 Link Down Event x%x received "
3360 "Data: x%x x%x x%x\n",
3361 la
->eventTag
, phba
->fc_eventTag
,
3362 phba
->pport
->port_state
, vport
->fc_flag
);
3363 lpfc_mbx_issue_link_down(phba
);
3365 lpfc_enable_la(phba
);
3367 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3368 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3369 "Data: x%x x%x x%x\n",
3370 la
->eventTag
, phba
->fc_eventTag
,
3371 phba
->pport
->port_state
, vport
->fc_flag
);
3373 * The cmnd that triggered this will be waiting for this
3376 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3377 if (phba
->wait_4_mlo_maint_flg
) {
3378 phba
->wait_4_mlo_maint_flg
= 0;
3379 wake_up_interruptible(&phba
->wait_4_mlo_m_q
);
3383 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
3384 bf_get(lpfc_mbx_read_top_fa
, la
)) {
3385 if (phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
)
3386 lpfc_issue_clear_la(phba
, vport
);
3387 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3389 bf_get(lpfc_mbx_read_top_fa
, la
));
3392 lpfc_mbx_cmpl_read_topology_free_mbuf
:
3393 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3395 mempool_free(pmb
, phba
->mbox_mem_pool
);
3400 * This routine handles processing a REG_LOGIN mailbox
3401 * command upon completion. It is setup in the LPFC_MBOXQ
3402 * as the completion routine when the command is
3403 * handed off to the SLI layer.
3406 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3408 struct lpfc_vport
*vport
= pmb
->vport
;
3409 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3410 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3411 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3413 pmb
->context1
= NULL
;
3414 pmb
->context2
= NULL
;
3416 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
3417 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3419 if (ndlp
->nlp_flag
& NLP_IGNR_REG_CMPL
||
3420 ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) {
3421 /* We rcvd a rscn after issuing this
3422 * mbox reg login, we may have cycled
3423 * back through the state and be
3424 * back at reg login state so this
3425 * mbox needs to be ignored becase
3426 * there is another reg login in
3429 spin_lock_irq(shost
->host_lock
);
3430 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
3431 spin_unlock_irq(shost
->host_lock
);
3433 /* Good status, call state machine */
3434 lpfc_disc_state_machine(vport
, ndlp
, pmb
,
3435 NLP_EVT_CMPL_REG_LOGIN
);
3437 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3439 mempool_free(pmb
, phba
->mbox_mem_pool
);
3440 /* decrement the node reference count held for this callback
3449 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3451 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3452 struct lpfc_vport
*vport
= pmb
->vport
;
3453 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3455 switch (mb
->mbxStatus
) {
3458 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3459 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3462 /* If VPI is busy, reset the HBA */
3464 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
3465 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3466 vport
->vpi
, mb
->mbxStatus
);
3467 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
3468 lpfc_workq_post_event(phba
, NULL
, NULL
,
3469 LPFC_EVT_RESET_HBA
);
3471 spin_lock_irq(shost
->host_lock
);
3472 vport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
3473 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
3474 spin_unlock_irq(shost
->host_lock
);
3475 vport
->unreg_vpi_cmpl
= VPORT_OK
;
3476 mempool_free(pmb
, phba
->mbox_mem_pool
);
3477 lpfc_cleanup_vports_rrqs(vport
, NULL
);
3479 * This shost reference might have been taken at the beginning of
3480 * lpfc_vport_delete()
3482 if ((vport
->load_flag
& FC_UNLOADING
) && (vport
!= phba
->pport
))
3483 scsi_host_put(shost
);
3487 lpfc_mbx_unreg_vpi(struct lpfc_vport
*vport
)
3489 struct lpfc_hba
*phba
= vport
->phba
;
3493 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3497 lpfc_unreg_vpi(phba
, vport
->vpi
, mbox
);
3498 mbox
->vport
= vport
;
3499 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_unreg_vpi
;
3500 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
3501 if (rc
== MBX_NOT_FINISHED
) {
3502 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
3503 "1800 Could not issue unreg_vpi\n");
3504 mempool_free(mbox
, phba
->mbox_mem_pool
);
3505 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
3512 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3514 struct lpfc_vport
*vport
= pmb
->vport
;
3515 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3516 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3518 switch (mb
->mbxStatus
) {
3522 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3523 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3525 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3526 spin_lock_irq(shost
->host_lock
);
3527 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
3528 spin_unlock_irq(shost
->host_lock
);
3529 vport
->fc_myDID
= 0;
3533 spin_lock_irq(shost
->host_lock
);
3534 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
3535 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
3536 spin_unlock_irq(shost
->host_lock
);
3537 vport
->num_disc_nodes
= 0;
3538 /* go thru NPR list and issue ELS PLOGIs */
3539 if (vport
->fc_npr_cnt
)
3540 lpfc_els_disc_plogi(vport
);
3542 if (!vport
->num_disc_nodes
) {
3543 spin_lock_irq(shost
->host_lock
);
3544 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
3545 spin_unlock_irq(shost
->host_lock
);
3546 lpfc_can_disctmo(vport
);
3548 vport
->port_state
= LPFC_VPORT_READY
;
3551 mempool_free(pmb
, phba
->mbox_mem_pool
);
3556 * lpfc_create_static_vport - Read HBA config region to create static vports.
3557 * @phba: pointer to lpfc hba data structure.
3559 * This routine issue a DUMP mailbox command for config region 22 to get
3560 * the list of static vports to be created. The function create vports
3561 * based on the information returned from the HBA.
3564 lpfc_create_static_vport(struct lpfc_hba
*phba
)
3566 LPFC_MBOXQ_t
*pmb
= NULL
;
3568 struct static_vport_info
*vport_info
;
3569 int mbx_wait_rc
= 0, i
;
3570 struct fc_vport_identifiers vport_id
;
3571 struct fc_vport
*new_fc_vport
;
3572 struct Scsi_Host
*shost
;
3573 struct lpfc_vport
*vport
;
3574 uint16_t offset
= 0;
3575 uint8_t *vport_buff
;
3576 struct lpfc_dmabuf
*mp
;
3577 uint32_t byte_count
= 0;
3579 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3581 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3582 "0542 lpfc_create_static_vport failed to"
3583 " allocate mailbox memory\n");
3586 memset(pmb
, 0, sizeof(LPFC_MBOXQ_t
));
3589 vport_info
= kzalloc(sizeof(struct static_vport_info
), GFP_KERNEL
);
3591 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3592 "0543 lpfc_create_static_vport failed to"
3593 " allocate vport_info\n");
3594 mempool_free(pmb
, phba
->mbox_mem_pool
);
3598 vport_buff
= (uint8_t *) vport_info
;
3600 /* free dma buffer from previous round */
3601 if (pmb
->context1
) {
3602 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3603 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3606 if (lpfc_dump_static_vport(phba
, pmb
, offset
))
3609 pmb
->vport
= phba
->pport
;
3610 mbx_wait_rc
= lpfc_sli_issue_mbox_wait(phba
, pmb
,
3613 if ((mbx_wait_rc
!= MBX_SUCCESS
) || mb
->mbxStatus
) {
3614 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3615 "0544 lpfc_create_static_vport failed to"
3616 " issue dump mailbox command ret 0x%x "
3618 mbx_wait_rc
, mb
->mbxStatus
);
3622 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3623 byte_count
= pmb
->u
.mqe
.un
.mb_words
[5];
3624 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3625 if (byte_count
> sizeof(struct static_vport_info
) -
3627 byte_count
= sizeof(struct static_vport_info
)
3629 memcpy(vport_buff
+ offset
, mp
->virt
, byte_count
);
3630 offset
+= byte_count
;
3632 if (mb
->un
.varDmp
.word_cnt
>
3633 sizeof(struct static_vport_info
) - offset
)
3634 mb
->un
.varDmp
.word_cnt
=
3635 sizeof(struct static_vport_info
)
3637 byte_count
= mb
->un
.varDmp
.word_cnt
;
3638 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
3639 vport_buff
+ offset
,
3642 offset
+= byte_count
;
3645 } while (byte_count
&&
3646 offset
< sizeof(struct static_vport_info
));
3649 if ((le32_to_cpu(vport_info
->signature
) != VPORT_INFO_SIG
) ||
3650 ((le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
)
3651 != VPORT_INFO_REV
)) {
3652 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3653 "0545 lpfc_create_static_vport bad"
3654 " information header 0x%x 0x%x\n",
3655 le32_to_cpu(vport_info
->signature
),
3656 le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
);
3661 shost
= lpfc_shost_from_vport(phba
->pport
);
3663 for (i
= 0; i
< MAX_STATIC_VPORT_COUNT
; i
++) {
3664 memset(&vport_id
, 0, sizeof(vport_id
));
3665 vport_id
.port_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwpn
);
3666 vport_id
.node_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwnn
);
3667 if (!vport_id
.port_name
|| !vport_id
.node_name
)
3670 vport_id
.roles
= FC_PORT_ROLE_FCP_INITIATOR
;
3671 vport_id
.vport_type
= FC_PORTTYPE_NPIV
;
3672 vport_id
.disable
= false;
3673 new_fc_vport
= fc_vport_create(shost
, 0, &vport_id
);
3675 if (!new_fc_vport
) {
3676 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3677 "0546 lpfc_create_static_vport failed to"
3682 vport
= *(struct lpfc_vport
**)new_fc_vport
->dd_data
;
3683 vport
->vport_flag
|= STATIC_VPORT
;
3688 if (mbx_wait_rc
!= MBX_TIMEOUT
) {
3689 if (pmb
->context1
) {
3690 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3691 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3694 mempool_free(pmb
, phba
->mbox_mem_pool
);
3701 * This routine handles processing a Fabric REG_LOGIN mailbox
3702 * command upon completion. It is setup in the LPFC_MBOXQ
3703 * as the completion routine when the command is
3704 * handed off to the SLI layer.
3707 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3709 struct lpfc_vport
*vport
= pmb
->vport
;
3710 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3711 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3712 struct lpfc_nodelist
*ndlp
;
3713 struct Scsi_Host
*shost
;
3715 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3716 pmb
->context1
= NULL
;
3717 pmb
->context2
= NULL
;
3719 if (mb
->mbxStatus
) {
3720 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3721 "0258 Register Fabric login error: 0x%x\n",
3723 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3725 mempool_free(pmb
, phba
->mbox_mem_pool
);
3727 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3728 /* FLOGI failed, use loop map to make discovery list */
3729 lpfc_disc_list_loopmap(vport
);
3731 /* Start discovery */
3732 lpfc_disc_start(vport
);
3733 /* Decrement the reference count to ndlp after the
3734 * reference to the ndlp are done.
3740 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3741 /* Decrement the reference count to ndlp after the reference
3742 * to the ndlp are done.
3748 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3749 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3750 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3751 ndlp
->nlp_type
|= NLP_FABRIC
;
3752 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3754 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
3755 /* when physical port receive logo donot start
3756 * vport discovery */
3757 if (!(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
3758 lpfc_start_fdiscs(phba
);
3760 shost
= lpfc_shost_from_vport(vport
);
3761 spin_lock_irq(shost
->host_lock
);
3762 vport
->fc_flag
&= ~FC_LOGO_RCVD_DID_CHNG
;
3763 spin_unlock_irq(shost
->host_lock
);
3765 lpfc_do_scr_ns_plogi(phba
, vport
);
3768 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3770 mempool_free(pmb
, phba
->mbox_mem_pool
);
3772 /* Drop the reference count from the mbox at the end after
3773 * all the current reference to the ndlp have been done.
3780 * This routine handles processing a NameServer REG_LOGIN mailbox
3781 * command upon completion. It is setup in the LPFC_MBOXQ
3782 * as the completion routine when the command is
3783 * handed off to the SLI layer.
3786 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3788 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3789 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3790 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3791 struct lpfc_vport
*vport
= pmb
->vport
;
3793 pmb
->context1
= NULL
;
3794 pmb
->context2
= NULL
;
3796 if (mb
->mbxStatus
) {
3798 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3799 "0260 Register NameServer error: 0x%x\n",
3801 /* decrement the node reference count held for this
3802 * callback function.
3805 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3807 mempool_free(pmb
, phba
->mbox_mem_pool
);
3809 /* If no other thread is using the ndlp, free it */
3810 lpfc_nlp_not_used(ndlp
);
3812 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3814 * RegLogin failed, use loop map to make discovery
3817 lpfc_disc_list_loopmap(vport
);
3819 /* Start discovery */
3820 lpfc_disc_start(vport
);
3823 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3827 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3828 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3829 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3830 ndlp
->nlp_type
|= NLP_FABRIC
;
3831 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3833 if (vport
->port_state
< LPFC_VPORT_READY
) {
3834 /* Link up discovery requires Fabric registration. */
3835 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0, 0); /* Do this first! */
3836 lpfc_ns_cmd(vport
, SLI_CTNS_RNN_ID
, 0, 0);
3837 lpfc_ns_cmd(vport
, SLI_CTNS_RSNN_NN
, 0, 0);
3838 lpfc_ns_cmd(vport
, SLI_CTNS_RSPN_ID
, 0, 0);
3839 lpfc_ns_cmd(vport
, SLI_CTNS_RFT_ID
, 0, 0);
3841 /* Issue SCR just before NameServer GID_FT Query */
3842 lpfc_issue_els_scr(vport
, SCR_DID
, 0);
3845 vport
->fc_ns_retry
= 0;
3846 /* Good status, issue CT Request to NameServer */
3847 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0)) {
3848 /* Cannot issue NameServer Query, so finish up discovery */
3852 /* decrement the node reference count held for this
3853 * callback function.
3856 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3858 mempool_free(pmb
, phba
->mbox_mem_pool
);
3864 lpfc_register_remote_port(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
3866 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3867 struct fc_rport
*rport
;
3868 struct lpfc_rport_data
*rdata
;
3869 struct fc_rport_identifiers rport_ids
;
3870 struct lpfc_hba
*phba
= vport
->phba
;
3872 /* Remote port has reappeared. Re-register w/ FC transport */
3873 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
3874 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
3875 rport_ids
.port_id
= ndlp
->nlp_DID
;
3876 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
3879 * We leave our node pointer in rport->dd_data when we unregister a
3880 * FCP target port. But fc_remote_port_add zeros the space to which
3881 * rport->dd_data points. So, if we're reusing a previously
3882 * registered port, drop the reference that we took the last time we
3883 * registered the port.
3885 if (ndlp
->rport
&& ndlp
->rport
->dd_data
&&
3886 ((struct lpfc_rport_data
*) ndlp
->rport
->dd_data
)->pnode
== ndlp
)
3889 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
3890 "rport add: did:x%x flg:x%x type x%x",
3891 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
3893 /* Don't add the remote port if unloading. */
3894 if (vport
->load_flag
& FC_UNLOADING
)
3897 ndlp
->rport
= rport
= fc_remote_port_add(shost
, 0, &rport_ids
);
3898 if (!rport
|| !get_device(&rport
->dev
)) {
3899 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
3900 "Warning: fc_remote_port_add failed\n");
3904 /* initialize static port data */
3905 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
3906 rport
->supported_classes
= ndlp
->nlp_class_sup
;
3907 rdata
= rport
->dd_data
;
3908 rdata
->pnode
= lpfc_nlp_get(ndlp
);
3910 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
3911 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
3912 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
3913 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
3915 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
3916 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
3918 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3919 "3183 rport register x%06x, rport %p role x%x\n",
3920 ndlp
->nlp_DID
, rport
, rport_ids
.roles
);
3922 if ((rport
->scsi_target_id
!= -1) &&
3923 (rport
->scsi_target_id
< LPFC_MAX_TARGET
)) {
3924 ndlp
->nlp_sid
= rport
->scsi_target_id
;
3930 lpfc_unregister_remote_port(struct lpfc_nodelist
*ndlp
)
3932 struct fc_rport
*rport
= ndlp
->rport
;
3934 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
3935 "rport delete: did:x%x flg:x%x type x%x",
3936 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
3938 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3939 "3184 rport unregister x%06x, rport %p\n",
3940 ndlp
->nlp_DID
, rport
);
3942 fc_remote_port_delete(rport
);
3948 lpfc_nlp_counters(struct lpfc_vport
*vport
, int state
, int count
)
3950 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3952 spin_lock_irq(shost
->host_lock
);
3954 case NLP_STE_UNUSED_NODE
:
3955 vport
->fc_unused_cnt
+= count
;
3957 case NLP_STE_PLOGI_ISSUE
:
3958 vport
->fc_plogi_cnt
+= count
;
3960 case NLP_STE_ADISC_ISSUE
:
3961 vport
->fc_adisc_cnt
+= count
;
3963 case NLP_STE_REG_LOGIN_ISSUE
:
3964 vport
->fc_reglogin_cnt
+= count
;
3966 case NLP_STE_PRLI_ISSUE
:
3967 vport
->fc_prli_cnt
+= count
;
3969 case NLP_STE_UNMAPPED_NODE
:
3970 vport
->fc_unmap_cnt
+= count
;
3972 case NLP_STE_MAPPED_NODE
:
3973 vport
->fc_map_cnt
+= count
;
3975 case NLP_STE_NPR_NODE
:
3976 vport
->fc_npr_cnt
+= count
;
3979 spin_unlock_irq(shost
->host_lock
);
3983 lpfc_nlp_state_cleanup(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
3984 int old_state
, int new_state
)
3986 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3988 if (new_state
== NLP_STE_UNMAPPED_NODE
) {
3989 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
3990 ndlp
->nlp_type
|= NLP_FC_NODE
;
3992 if (new_state
== NLP_STE_MAPPED_NODE
)
3993 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
3994 if (new_state
== NLP_STE_NPR_NODE
)
3995 ndlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
3997 /* Transport interface */
3998 if (ndlp
->rport
&& (old_state
== NLP_STE_MAPPED_NODE
||
3999 old_state
== NLP_STE_UNMAPPED_NODE
)) {
4000 vport
->phba
->nport_event_cnt
++;
4001 lpfc_unregister_remote_port(ndlp
);
4004 if (new_state
== NLP_STE_MAPPED_NODE
||
4005 new_state
== NLP_STE_UNMAPPED_NODE
) {
4006 vport
->phba
->nport_event_cnt
++;
4008 * Tell the fc transport about the port, if we haven't
4009 * already. If we have, and it's a scsi entity, be
4010 * sure to unblock any attached scsi devices
4012 lpfc_register_remote_port(vport
, ndlp
);
4014 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
4015 (vport
->stat_data_enabled
)) {
4017 * A new target is discovered, if there is no buffer for
4018 * statistical data collection allocate buffer.
4020 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
4021 sizeof(struct lpfc_scsicmd_bkt
),
4024 if (!ndlp
->lat_data
)
4025 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
4026 "0286 lpfc_nlp_state_cleanup failed to "
4027 "allocate statistical data buffer DID "
4028 "0x%x\n", ndlp
->nlp_DID
);
4031 * if we added to Mapped list, but the remote port
4032 * registration failed or assigned a target id outside
4033 * our presentable range - move the node to the
4036 if (new_state
== NLP_STE_MAPPED_NODE
&&
4038 ndlp
->rport
->scsi_target_id
== -1 ||
4039 ndlp
->rport
->scsi_target_id
>= LPFC_MAX_TARGET
)) {
4040 spin_lock_irq(shost
->host_lock
);
4041 ndlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
4042 spin_unlock_irq(shost
->host_lock
);
4043 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
4048 lpfc_nlp_state_name(char *buffer
, size_t size
, int state
)
4050 static char *states
[] = {
4051 [NLP_STE_UNUSED_NODE
] = "UNUSED",
4052 [NLP_STE_PLOGI_ISSUE
] = "PLOGI",
4053 [NLP_STE_ADISC_ISSUE
] = "ADISC",
4054 [NLP_STE_REG_LOGIN_ISSUE
] = "REGLOGIN",
4055 [NLP_STE_PRLI_ISSUE
] = "PRLI",
4056 [NLP_STE_LOGO_ISSUE
] = "LOGO",
4057 [NLP_STE_UNMAPPED_NODE
] = "UNMAPPED",
4058 [NLP_STE_MAPPED_NODE
] = "MAPPED",
4059 [NLP_STE_NPR_NODE
] = "NPR",
4062 if (state
< NLP_STE_MAX_STATE
&& states
[state
])
4063 strlcpy(buffer
, states
[state
], size
);
4065 snprintf(buffer
, size
, "unknown (%d)", state
);
4070 lpfc_nlp_set_state(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4073 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4074 int old_state
= ndlp
->nlp_state
;
4075 char name1
[16], name2
[16];
4077 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4078 "0904 NPort state transition x%06x, %s -> %s\n",
4080 lpfc_nlp_state_name(name1
, sizeof(name1
), old_state
),
4081 lpfc_nlp_state_name(name2
, sizeof(name2
), state
));
4083 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4084 "node statechg did:x%x old:%d ste:%d",
4085 ndlp
->nlp_DID
, old_state
, state
);
4087 if (old_state
== NLP_STE_NPR_NODE
&&
4088 state
!= NLP_STE_NPR_NODE
)
4089 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4090 if (old_state
== NLP_STE_UNMAPPED_NODE
) {
4091 ndlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
4092 ndlp
->nlp_type
&= ~NLP_FC_NODE
;
4095 if (list_empty(&ndlp
->nlp_listp
)) {
4096 spin_lock_irq(shost
->host_lock
);
4097 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4098 spin_unlock_irq(shost
->host_lock
);
4099 } else if (old_state
)
4100 lpfc_nlp_counters(vport
, old_state
, -1);
4102 ndlp
->nlp_state
= state
;
4103 lpfc_nlp_counters(vport
, state
, 1);
4104 lpfc_nlp_state_cleanup(vport
, ndlp
, old_state
, state
);
4108 lpfc_enqueue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4110 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4112 if (list_empty(&ndlp
->nlp_listp
)) {
4113 spin_lock_irq(shost
->host_lock
);
4114 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4115 spin_unlock_irq(shost
->host_lock
);
4120 lpfc_dequeue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4122 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4124 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4125 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4126 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4127 spin_lock_irq(shost
->host_lock
);
4128 list_del_init(&ndlp
->nlp_listp
);
4129 spin_unlock_irq(shost
->host_lock
);
4130 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4131 NLP_STE_UNUSED_NODE
);
4135 lpfc_disable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4137 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4138 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4139 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4140 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4141 NLP_STE_UNUSED_NODE
);
4144 * lpfc_initialize_node - Initialize all fields of node object
4145 * @vport: Pointer to Virtual Port object.
4146 * @ndlp: Pointer to FC node object.
4147 * @did: FC_ID of the node.
4149 * This function is always called when node object need to be initialized.
4150 * It initializes all the fields of the node object. Although the reference
4151 * to phba from @ndlp can be obtained indirectly through it's reference to
4152 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4153 * to the life-span of the @ndlp might go beyond the existence of @vport as
4154 * the final release of ndlp is determined by its reference count. And, the
4155 * operation on @ndlp needs the reference to phba.
4158 lpfc_initialize_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4161 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
4162 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
4163 init_timer(&ndlp
->nlp_delayfunc
);
4164 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
4165 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
4166 ndlp
->nlp_DID
= did
;
4167 ndlp
->vport
= vport
;
4168 ndlp
->phba
= vport
->phba
;
4169 ndlp
->nlp_sid
= NLP_NO_SID
;
4170 kref_init(&ndlp
->kref
);
4171 NLP_INT_NODE_ACT(ndlp
);
4172 atomic_set(&ndlp
->cmd_pending
, 0);
4173 ndlp
->cmd_qdepth
= vport
->cfg_tgt_queue_depth
;
4174 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
4175 ndlp
->nlp_rpi
= lpfc_sli4_alloc_rpi(vport
->phba
);
4178 struct lpfc_nodelist
*
4179 lpfc_enable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4182 struct lpfc_hba
*phba
= vport
->phba
;
4184 unsigned long flags
;
4189 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
4190 /* The ndlp should not be in memory free mode */
4191 if (NLP_CHK_FREE_REQ(ndlp
)) {
4192 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4193 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4194 "0277 lpfc_enable_node: ndlp:x%p "
4195 "usgmap:x%x refcnt:%d\n",
4196 (void *)ndlp
, ndlp
->nlp_usg_map
,
4197 atomic_read(&ndlp
->kref
.refcount
));
4200 /* The ndlp should not already be in active mode */
4201 if (NLP_CHK_NODE_ACT(ndlp
)) {
4202 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4203 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4204 "0278 lpfc_enable_node: ndlp:x%p "
4205 "usgmap:x%x refcnt:%d\n",
4206 (void *)ndlp
, ndlp
->nlp_usg_map
,
4207 atomic_read(&ndlp
->kref
.refcount
));
4211 /* Keep the original DID */
4212 did
= ndlp
->nlp_DID
;
4214 /* re-initialize ndlp except of ndlp linked list pointer */
4215 memset((((char *)ndlp
) + sizeof (struct list_head
)), 0,
4216 sizeof (struct lpfc_nodelist
) - sizeof (struct list_head
));
4217 lpfc_initialize_node(vport
, ndlp
, did
);
4219 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4221 if (state
!= NLP_STE_UNUSED_NODE
)
4222 lpfc_nlp_set_state(vport
, ndlp
, state
);
4224 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4225 "node enable: did:x%x",
4226 ndlp
->nlp_DID
, 0, 0);
4231 lpfc_drop_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4234 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4235 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4236 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4237 * until ALL other outstanding threads have completed. We check
4238 * that the ndlp not already in the UNUSED state before we proceed.
4240 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
4242 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
4243 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
4244 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4250 * Start / ReStart rescue timer for Discovery / RSCN handling
4253 lpfc_set_disctmo(struct lpfc_vport
*vport
)
4255 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4256 struct lpfc_hba
*phba
= vport
->phba
;
4259 if (vport
->port_state
== LPFC_LOCAL_CFG_LINK
) {
4260 /* For FAN, timeout should be greater than edtov */
4261 tmo
= (((phba
->fc_edtov
+ 999) / 1000) + 1);
4263 /* Normal discovery timeout should be > than ELS/CT timeout
4264 * FC spec states we need 3 * ratov for CT requests
4266 tmo
= ((phba
->fc_ratov
* 3) + 3);
4270 if (!timer_pending(&vport
->fc_disctmo
)) {
4271 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4272 "set disc timer: tmo:x%x state:x%x flg:x%x",
4273 tmo
, vport
->port_state
, vport
->fc_flag
);
4276 mod_timer(&vport
->fc_disctmo
, jiffies
+ msecs_to_jiffies(1000 * tmo
));
4277 spin_lock_irq(shost
->host_lock
);
4278 vport
->fc_flag
|= FC_DISC_TMO
;
4279 spin_unlock_irq(shost
->host_lock
);
4281 /* Start Discovery Timer state <hba_state> */
4282 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4283 "0247 Start Discovery Timer state x%x "
4284 "Data: x%x x%lx x%x x%x\n",
4285 vport
->port_state
, tmo
,
4286 (unsigned long)&vport
->fc_disctmo
, vport
->fc_plogi_cnt
,
4287 vport
->fc_adisc_cnt
);
4293 * Cancel rescue timer for Discovery / RSCN handling
4296 lpfc_can_disctmo(struct lpfc_vport
*vport
)
4298 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4299 unsigned long iflags
;
4301 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4302 "can disc timer: state:x%x rtry:x%x flg:x%x",
4303 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
4305 /* Turn off discovery timer if its running */
4306 if (vport
->fc_flag
& FC_DISC_TMO
) {
4307 spin_lock_irqsave(shost
->host_lock
, iflags
);
4308 vport
->fc_flag
&= ~FC_DISC_TMO
;
4309 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
4310 del_timer_sync(&vport
->fc_disctmo
);
4311 spin_lock_irqsave(&vport
->work_port_lock
, iflags
);
4312 vport
->work_port_events
&= ~WORKER_DISC_TMO
;
4313 spin_unlock_irqrestore(&vport
->work_port_lock
, iflags
);
4316 /* Cancel Discovery Timer state <hba_state> */
4317 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4318 "0248 Cancel Discovery Timer state x%x "
4319 "Data: x%x x%x x%x\n",
4320 vport
->port_state
, vport
->fc_flag
,
4321 vport
->fc_plogi_cnt
, vport
->fc_adisc_cnt
);
4326 * Check specified ring for outstanding IOCB on the SLI queue
4327 * Return true if iocb matches the specified nport
4330 lpfc_check_sli_ndlp(struct lpfc_hba
*phba
,
4331 struct lpfc_sli_ring
*pring
,
4332 struct lpfc_iocbq
*iocb
,
4333 struct lpfc_nodelist
*ndlp
)
4335 struct lpfc_sli
*psli
= &phba
->sli
;
4336 IOCB_t
*icmd
= &iocb
->iocb
;
4337 struct lpfc_vport
*vport
= ndlp
->vport
;
4339 if (iocb
->vport
!= vport
)
4342 if (pring
->ringno
== LPFC_ELS_RING
) {
4343 switch (icmd
->ulpCommand
) {
4344 case CMD_GEN_REQUEST64_CR
:
4345 if (iocb
->context_un
.ndlp
== ndlp
)
4347 case CMD_ELS_REQUEST64_CR
:
4348 if (icmd
->un
.elsreq64
.remoteID
== ndlp
->nlp_DID
)
4350 case CMD_XMIT_ELS_RSP64_CX
:
4351 if (iocb
->context1
== (uint8_t *) ndlp
)
4354 } else if (pring
->ringno
== psli
->extra_ring
) {
4356 } else if (pring
->ringno
== psli
->fcp_ring
) {
4357 /* Skip match check if waiting to relogin to FCP target */
4358 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4359 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
4362 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
4365 } else if (pring
->ringno
== psli
->next_ring
) {
4372 * Free resources / clean up outstanding I/Os
4373 * associated with nlp_rpi in the LPFC_NODELIST entry.
4376 lpfc_no_rpi(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
4378 LIST_HEAD(completions
);
4379 struct lpfc_sli
*psli
;
4380 struct lpfc_sli_ring
*pring
;
4381 struct lpfc_iocbq
*iocb
, *next_iocb
;
4384 lpfc_fabric_abort_nport(ndlp
);
4387 * Everything that matches on txcmplq will be returned
4388 * by firmware with a no rpi error.
4391 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4392 /* Now process each ring */
4393 for (i
= 0; i
< psli
->num_rings
; i
++) {
4394 pring
= &psli
->ring
[i
];
4396 spin_lock_irq(&phba
->hbalock
);
4397 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
,
4400 * Check to see if iocb matches the nport we are
4403 if ((lpfc_check_sli_ndlp(phba
, pring
, iocb
,
4405 /* It matches, so deque and call compl
4407 list_move_tail(&iocb
->list
,
4411 spin_unlock_irq(&phba
->hbalock
);
4415 /* Cancel all the IOCBs from the completions list */
4416 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
4423 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4424 * @phba: Pointer to HBA context object.
4425 * @pmb: Pointer to mailbox object.
4427 * This function will issue an ELS LOGO command after completing
4431 lpfc_nlp_logo_unreg(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
4433 struct lpfc_vport
*vport
= pmb
->vport
;
4434 struct lpfc_nodelist
*ndlp
;
4436 ndlp
= (struct lpfc_nodelist
*)(pmb
->context1
);
4439 lpfc_issue_els_logo(vport
, ndlp
, 0);
4440 mempool_free(pmb
, phba
->mbox_mem_pool
);
4444 * Free rpi associated with LPFC_NODELIST entry.
4445 * This routine is called from lpfc_freenode(), when we are removing
4446 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4447 * LOGO that completes successfully, and we are waiting to PLOGI back
4448 * to the remote NPort. In addition, it is called after we receive
4449 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4450 * we are waiting to PLOGI back to the remote NPort.
4453 lpfc_unreg_rpi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4455 struct lpfc_hba
*phba
= vport
->phba
;
4460 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
||
4461 ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) {
4462 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
4463 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
4464 "3366 RPI x%x needs to be "
4465 "unregistered nlp_flag x%x "
4467 ndlp
->nlp_rpi
, ndlp
->nlp_flag
,
4469 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4471 /* SLI4 ports require the physical rpi value. */
4472 rpi
= ndlp
->nlp_rpi
;
4473 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4474 rpi
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
4476 lpfc_unreg_login(phba
, vport
->vpi
, rpi
, mbox
);
4477 mbox
->vport
= vport
;
4478 if (ndlp
->nlp_flag
& NLP_ISSUE_LOGO
) {
4479 mbox
->context1
= ndlp
;
4480 mbox
->mbox_cmpl
= lpfc_nlp_logo_unreg
;
4482 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4485 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4486 if (rc
== MBX_NOT_FINISHED
)
4487 mempool_free(mbox
, phba
->mbox_mem_pool
);
4489 lpfc_no_rpi(phba
, ndlp
);
4491 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
4493 ndlp
->nlp_flag
&= ~NLP_RPI_REGISTERED
;
4494 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4501 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4502 * @phba: pointer to lpfc hba data structure.
4504 * This routine is invoked to unregister all the currently registered RPIs
4508 lpfc_unreg_hba_rpis(struct lpfc_hba
*phba
)
4510 struct lpfc_vport
**vports
;
4511 struct lpfc_nodelist
*ndlp
;
4512 struct Scsi_Host
*shost
;
4515 vports
= lpfc_create_vport_work_array(phba
);
4517 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
4518 "2884 Vport array allocation failed \n");
4521 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
4522 shost
= lpfc_shost_from_vport(vports
[i
]);
4523 spin_lock_irq(shost
->host_lock
);
4524 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
4525 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4526 /* The mempool_alloc might sleep */
4527 spin_unlock_irq(shost
->host_lock
);
4528 lpfc_unreg_rpi(vports
[i
], ndlp
);
4529 spin_lock_irq(shost
->host_lock
);
4532 spin_unlock_irq(shost
->host_lock
);
4534 lpfc_destroy_vport_work_array(phba
, vports
);
4538 lpfc_unreg_all_rpis(struct lpfc_vport
*vport
)
4540 struct lpfc_hba
*phba
= vport
->phba
;
4544 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
4545 lpfc_sli4_unreg_all_rpis(vport
);
4549 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4551 lpfc_unreg_login(phba
, vport
->vpi
, LPFC_UNREG_ALL_RPIS_VPORT
,
4553 mbox
->vport
= vport
;
4554 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4555 mbox
->context1
= NULL
;
4556 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4557 if (rc
!= MBX_TIMEOUT
)
4558 mempool_free(mbox
, phba
->mbox_mem_pool
);
4560 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4561 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4562 "1836 Could not issue "
4563 "unreg_login(all_rpis) status %d\n", rc
);
4568 lpfc_unreg_default_rpis(struct lpfc_vport
*vport
)
4570 struct lpfc_hba
*phba
= vport
->phba
;
4574 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4576 lpfc_unreg_did(phba
, vport
->vpi
, LPFC_UNREG_ALL_DFLT_RPIS
,
4578 mbox
->vport
= vport
;
4579 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4580 mbox
->context1
= NULL
;
4581 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4582 if (rc
!= MBX_TIMEOUT
)
4583 mempool_free(mbox
, phba
->mbox_mem_pool
);
4585 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4586 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4587 "1815 Could not issue "
4588 "unreg_did (default rpis) status %d\n",
4594 * Free resources associated with LPFC_NODELIST entry
4595 * so it can be freed.
4598 lpfc_cleanup_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4600 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4601 struct lpfc_hba
*phba
= vport
->phba
;
4602 LPFC_MBOXQ_t
*mb
, *nextmb
;
4603 struct lpfc_dmabuf
*mp
;
4605 /* Cleanup node for NPort <nlp_DID> */
4606 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4607 "0900 Cleanup node for NPort x%x "
4608 "Data: x%x x%x x%x\n",
4609 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
4610 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4611 if (NLP_CHK_FREE_REQ(ndlp
)) {
4612 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4613 "0280 lpfc_cleanup_node: ndlp:x%p "
4614 "usgmap:x%x refcnt:%d\n",
4615 (void *)ndlp
, ndlp
->nlp_usg_map
,
4616 atomic_read(&ndlp
->kref
.refcount
));
4617 lpfc_dequeue_node(vport
, ndlp
);
4619 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4620 "0281 lpfc_cleanup_node: ndlp:x%p "
4621 "usgmap:x%x refcnt:%d\n",
4622 (void *)ndlp
, ndlp
->nlp_usg_map
,
4623 atomic_read(&ndlp
->kref
.refcount
));
4624 lpfc_disable_node(vport
, ndlp
);
4628 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4630 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4631 if ((mb
= phba
->sli
.mbox_active
)) {
4632 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4633 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4634 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4635 mb
->context2
= NULL
;
4636 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4640 spin_lock_irq(&phba
->hbalock
);
4641 /* Cleanup REG_LOGIN completions which are not yet processed */
4642 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
4643 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) ||
4644 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) ||
4645 (ndlp
!= (struct lpfc_nodelist
*) mb
->context2
))
4648 mb
->context2
= NULL
;
4649 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4652 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
4653 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4654 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4655 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4656 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
4658 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4661 list_del(&mb
->list
);
4662 mempool_free(mb
, phba
->mbox_mem_pool
);
4663 /* We shall not invoke the lpfc_nlp_put to decrement
4664 * the ndlp reference count as we are in the process
4665 * of lpfc_nlp_release.
4669 spin_unlock_irq(&phba
->hbalock
);
4671 lpfc_els_abort(phba
, ndlp
);
4673 spin_lock_irq(shost
->host_lock
);
4674 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
4675 spin_unlock_irq(shost
->host_lock
);
4677 ndlp
->nlp_last_elscmd
= 0;
4678 del_timer_sync(&ndlp
->nlp_delayfunc
);
4680 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
4681 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
4682 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4683 lpfc_unreg_rpi(vport
, ndlp
);
4689 * Check to see if we can free the nlp back to the freelist.
4690 * If we are in the middle of using the nlp in the discovery state
4691 * machine, defer the free till we reach the end of the state machine.
4694 lpfc_nlp_remove(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4696 struct lpfc_hba
*phba
= vport
->phba
;
4697 struct lpfc_rport_data
*rdata
;
4701 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4702 if ((ndlp
->nlp_flag
& NLP_DEFER_RM
) &&
4703 !(ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) &&
4704 !(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
)) {
4705 /* For this case we need to cleanup the default rpi
4706 * allocated by the firmware.
4708 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))
4710 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, ndlp
->nlp_DID
,
4711 (uint8_t *) &vport
->fc_sparam
, mbox
, ndlp
->nlp_rpi
);
4713 mempool_free(mbox
, phba
->mbox_mem_pool
);
4716 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
4717 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
4718 mbox
->vport
= vport
;
4719 mbox
->context2
= ndlp
;
4720 rc
=lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4721 if (rc
== MBX_NOT_FINISHED
) {
4722 mempool_free(mbox
, phba
->mbox_mem_pool
);
4727 lpfc_cleanup_node(vport
, ndlp
);
4730 * We can get here with a non-NULL ndlp->rport because when we
4731 * unregister a rport we don't break the rport/node linkage. So if we
4732 * do, make sure we don't leaving any dangling pointers behind.
4735 rdata
= ndlp
->rport
->dd_data
;
4736 rdata
->pnode
= NULL
;
4742 lpfc_matchdid(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4745 D_ID mydid
, ndlpdid
, matchdid
;
4747 if (did
== Bcast_DID
)
4750 /* First check for Direct match */
4751 if (ndlp
->nlp_DID
== did
)
4754 /* Next check for area/domain identically equals 0 match */
4755 mydid
.un
.word
= vport
->fc_myDID
;
4756 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
4760 matchdid
.un
.word
= did
;
4761 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
4762 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
4763 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
4764 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
4765 if ((ndlpdid
.un
.b
.domain
== 0) &&
4766 (ndlpdid
.un
.b
.area
== 0)) {
4767 if (ndlpdid
.un
.b
.id
)
4773 matchdid
.un
.word
= ndlp
->nlp_DID
;
4774 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
4775 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
4776 if ((matchdid
.un
.b
.domain
== 0) &&
4777 (matchdid
.un
.b
.area
== 0)) {
4778 if (matchdid
.un
.b
.id
)
4786 /* Search for a nodelist entry */
4787 static struct lpfc_nodelist
*
4788 __lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
4790 struct lpfc_nodelist
*ndlp
;
4793 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4794 if (lpfc_matchdid(vport
, ndlp
, did
)) {
4795 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
4796 ((uint32_t) ndlp
->nlp_xri
<< 16) |
4797 ((uint32_t) ndlp
->nlp_type
<< 8) |
4798 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
4799 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4800 "0929 FIND node DID "
4801 "Data: x%p x%x x%x x%x\n",
4802 ndlp
, ndlp
->nlp_DID
,
4803 ndlp
->nlp_flag
, data1
);
4808 /* FIND node did <did> NOT FOUND */
4809 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4810 "0932 FIND node did x%x NOT FOUND.\n", did
);
4814 struct lpfc_nodelist
*
4815 lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
4817 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4818 struct lpfc_nodelist
*ndlp
;
4819 unsigned long iflags
;
4821 spin_lock_irqsave(shost
->host_lock
, iflags
);
4822 ndlp
= __lpfc_findnode_did(vport
, did
);
4823 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
4827 struct lpfc_nodelist
*
4828 lpfc_setup_disc_node(struct lpfc_vport
*vport
, uint32_t did
)
4830 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4831 struct lpfc_nodelist
*ndlp
;
4833 ndlp
= lpfc_findnode_did(vport
, did
);
4835 if ((vport
->fc_flag
& FC_RSCN_MODE
) != 0 &&
4836 lpfc_rscn_payload_check(vport
, did
) == 0)
4838 ndlp
= (struct lpfc_nodelist
*)
4839 mempool_alloc(vport
->phba
->nlp_mem_pool
, GFP_KERNEL
);
4842 lpfc_nlp_init(vport
, ndlp
, did
);
4843 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
4844 spin_lock_irq(shost
->host_lock
);
4845 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4846 spin_unlock_irq(shost
->host_lock
);
4848 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
4849 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
4852 spin_lock_irq(shost
->host_lock
);
4853 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4854 spin_unlock_irq(shost
->host_lock
);
4858 if ((vport
->fc_flag
& FC_RSCN_MODE
) &&
4859 !(vport
->fc_flag
& FC_NDISC_ACTIVE
)) {
4860 if (lpfc_rscn_payload_check(vport
, did
)) {
4861 /* If we've already received a PLOGI from this NPort
4862 * we don't need to try to discover it again.
4864 if (ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
4867 /* Since this node is marked for discovery,
4868 * delay timeout is not needed.
4870 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4871 spin_lock_irq(shost
->host_lock
);
4872 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4873 spin_unlock_irq(shost
->host_lock
);
4877 /* If we've already received a PLOGI from this NPort,
4878 * or we are already in the process of discovery on it,
4879 * we don't need to try to discover it again.
4881 if (ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
||
4882 ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
4883 ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
4885 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
4886 spin_lock_irq(shost
->host_lock
);
4887 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4888 spin_unlock_irq(shost
->host_lock
);
4893 /* Build a list of nodes to discover based on the loopmap */
4895 lpfc_disc_list_loopmap(struct lpfc_vport
*vport
)
4897 struct lpfc_hba
*phba
= vport
->phba
;
4899 uint32_t alpa
, index
;
4901 if (!lpfc_is_link_up(phba
))
4904 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
4907 /* Check for loop map present or not */
4908 if (phba
->alpa_map
[0]) {
4909 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
4910 alpa
= phba
->alpa_map
[j
];
4911 if (((vport
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0))
4913 lpfc_setup_disc_node(vport
, alpa
);
4916 /* No alpamap, so try all alpa's */
4917 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
4918 /* If cfg_scan_down is set, start from highest
4919 * ALPA (0xef) to lowest (0x1).
4921 if (vport
->cfg_scan_down
)
4924 index
= FC_MAXLOOP
- j
- 1;
4925 alpa
= lpfcAlpaArray
[index
];
4926 if ((vport
->fc_myDID
& 0xff) == alpa
)
4928 lpfc_setup_disc_node(vport
, alpa
);
4935 lpfc_issue_clear_la(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
4938 struct lpfc_sli
*psli
= &phba
->sli
;
4939 struct lpfc_sli_ring
*extra_ring
= &psli
->ring
[psli
->extra_ring
];
4940 struct lpfc_sli_ring
*fcp_ring
= &psli
->ring
[psli
->fcp_ring
];
4941 struct lpfc_sli_ring
*next_ring
= &psli
->ring
[psli
->next_ring
];
4945 * if it's not a physical port or if we already send
4946 * clear_la then don't send it.
4948 if ((phba
->link_state
>= LPFC_CLEAR_LA
) ||
4949 (vport
->port_type
!= LPFC_PHYSICAL_PORT
) ||
4950 (phba
->sli_rev
== LPFC_SLI_REV4
))
4953 /* Link up discovery */
4954 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
)) != NULL
) {
4955 phba
->link_state
= LPFC_CLEAR_LA
;
4956 lpfc_clear_la(phba
, mbox
);
4957 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
4958 mbox
->vport
= vport
;
4959 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4960 if (rc
== MBX_NOT_FINISHED
) {
4961 mempool_free(mbox
, phba
->mbox_mem_pool
);
4962 lpfc_disc_flush_list(vport
);
4963 extra_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
4964 fcp_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
4965 next_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
4966 phba
->link_state
= LPFC_HBA_ERROR
;
4971 /* Reg_vpi to tell firmware to resume normal operations */
4973 lpfc_issue_reg_vpi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
4975 LPFC_MBOXQ_t
*regvpimbox
;
4977 regvpimbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4979 lpfc_reg_vpi(vport
, regvpimbox
);
4980 regvpimbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vpi
;
4981 regvpimbox
->vport
= vport
;
4982 if (lpfc_sli_issue_mbox(phba
, regvpimbox
, MBX_NOWAIT
)
4983 == MBX_NOT_FINISHED
) {
4984 mempool_free(regvpimbox
, phba
->mbox_mem_pool
);
4989 /* Start Link up / RSCN discovery on NPR nodes */
4991 lpfc_disc_start(struct lpfc_vport
*vport
)
4993 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4994 struct lpfc_hba
*phba
= vport
->phba
;
4996 uint32_t clear_la_pending
;
4999 if (!lpfc_is_link_up(phba
)) {
5000 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
5001 "3315 Link is not up %x\n",
5006 if (phba
->link_state
== LPFC_CLEAR_LA
)
5007 clear_la_pending
= 1;
5009 clear_la_pending
= 0;
5011 if (vport
->port_state
< LPFC_VPORT_READY
)
5012 vport
->port_state
= LPFC_DISC_AUTH
;
5014 lpfc_set_disctmo(vport
);
5016 if (vport
->fc_prevDID
== vport
->fc_myDID
)
5021 vport
->fc_prevDID
= vport
->fc_myDID
;
5022 vport
->num_disc_nodes
= 0;
5024 /* Start Discovery state <hba_state> */
5025 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5026 "0202 Start Discovery hba state x%x "
5027 "Data: x%x x%x x%x\n",
5028 vport
->port_state
, vport
->fc_flag
, vport
->fc_plogi_cnt
,
5029 vport
->fc_adisc_cnt
);
5031 /* First do ADISCs - if any */
5032 num_sent
= lpfc_els_disc_adisc(vport
);
5037 /* Register the VPI for SLI3, NPIV only. */
5038 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
5039 !(vport
->fc_flag
& FC_PT2PT
) &&
5040 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
5041 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
5042 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
5043 lpfc_issue_clear_la(phba
, vport
);
5044 lpfc_issue_reg_vpi(phba
, vport
);
5049 * For SLI2, we need to set port_state to READY and continue
5052 if (vport
->port_state
< LPFC_VPORT_READY
&& !clear_la_pending
) {
5053 /* If we get here, there is nothing to ADISC */
5054 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
5055 lpfc_issue_clear_la(phba
, vport
);
5057 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
5058 vport
->num_disc_nodes
= 0;
5059 /* go thru NPR nodes and issue ELS PLOGIs */
5060 if (vport
->fc_npr_cnt
)
5061 lpfc_els_disc_plogi(vport
);
5063 if (!vport
->num_disc_nodes
) {
5064 spin_lock_irq(shost
->host_lock
);
5065 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
5066 spin_unlock_irq(shost
->host_lock
);
5067 lpfc_can_disctmo(vport
);
5070 vport
->port_state
= LPFC_VPORT_READY
;
5072 /* Next do PLOGIs - if any */
5073 num_sent
= lpfc_els_disc_plogi(vport
);
5078 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5079 /* Check to see if more RSCNs came in while we
5080 * were processing this one.
5082 if ((vport
->fc_rscn_id_cnt
== 0) &&
5083 (!(vport
->fc_flag
& FC_RSCN_DISCOVERY
))) {
5084 spin_lock_irq(shost
->host_lock
);
5085 vport
->fc_flag
&= ~FC_RSCN_MODE
;
5086 spin_unlock_irq(shost
->host_lock
);
5087 lpfc_can_disctmo(vport
);
5089 lpfc_els_handle_rscn(vport
);
5096 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5097 * ring the match the sppecified nodelist.
5100 lpfc_free_tx(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
5102 LIST_HEAD(completions
);
5103 struct lpfc_sli
*psli
;
5105 struct lpfc_iocbq
*iocb
, *next_iocb
;
5106 struct lpfc_sli_ring
*pring
;
5109 pring
= &psli
->ring
[LPFC_ELS_RING
];
5111 /* Error matching iocb on txq or txcmplq
5112 * First check the txq.
5114 spin_lock_irq(&phba
->hbalock
);
5115 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
5116 if (iocb
->context1
!= ndlp
) {
5120 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
5121 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
5123 list_move_tail(&iocb
->list
, &completions
);
5127 /* Next check the txcmplq */
5128 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
5129 if (iocb
->context1
!= ndlp
) {
5133 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
||
5134 icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
) {
5135 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
5138 spin_unlock_irq(&phba
->hbalock
);
5140 /* Cancel all the IOCBs from the completions list */
5141 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
5146 lpfc_disc_flush_list(struct lpfc_vport
*vport
)
5148 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5149 struct lpfc_hba
*phba
= vport
->phba
;
5151 if (vport
->fc_plogi_cnt
|| vport
->fc_adisc_cnt
) {
5152 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5154 if (!NLP_CHK_NODE_ACT(ndlp
))
5156 if (ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
5157 ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
) {
5158 lpfc_free_tx(phba
, ndlp
);
5165 lpfc_cleanup_discovery_resources(struct lpfc_vport
*vport
)
5167 lpfc_els_flush_rscn(vport
);
5168 lpfc_els_flush_cmd(vport
);
5169 lpfc_disc_flush_list(vport
);
5172 /*****************************************************************************/
5174 * NAME: lpfc_disc_timeout
5176 * FUNCTION: Fibre Channel driver discovery timeout routine.
5178 * EXECUTION ENVIRONMENT: interrupt only
5186 /*****************************************************************************/
5188 lpfc_disc_timeout(unsigned long ptr
)
5190 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
5191 struct lpfc_hba
*phba
= vport
->phba
;
5192 uint32_t tmo_posted
;
5193 unsigned long flags
= 0;
5195 if (unlikely(!phba
))
5198 spin_lock_irqsave(&vport
->work_port_lock
, flags
);
5199 tmo_posted
= vport
->work_port_events
& WORKER_DISC_TMO
;
5201 vport
->work_port_events
|= WORKER_DISC_TMO
;
5202 spin_unlock_irqrestore(&vport
->work_port_lock
, flags
);
5205 lpfc_worker_wake_up(phba
);
5210 lpfc_disc_timeout_handler(struct lpfc_vport
*vport
)
5212 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5213 struct lpfc_hba
*phba
= vport
->phba
;
5214 struct lpfc_sli
*psli
= &phba
->sli
;
5215 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5216 LPFC_MBOXQ_t
*initlinkmbox
;
5217 int rc
, clrlaerr
= 0;
5219 if (!(vport
->fc_flag
& FC_DISC_TMO
))
5222 spin_lock_irq(shost
->host_lock
);
5223 vport
->fc_flag
&= ~FC_DISC_TMO
;
5224 spin_unlock_irq(shost
->host_lock
);
5226 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5227 "disc timeout: state:x%x rtry:x%x flg:x%x",
5228 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
5230 switch (vport
->port_state
) {
5232 case LPFC_LOCAL_CFG_LINK
:
5233 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
5237 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_DISCOVERY
,
5238 "0221 FAN timeout\n");
5239 /* Start discovery by sending FLOGI, clean up old rpis */
5240 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5242 if (!NLP_CHK_NODE_ACT(ndlp
))
5244 if (ndlp
->nlp_state
!= NLP_STE_NPR_NODE
)
5246 if (ndlp
->nlp_type
& NLP_FABRIC
) {
5247 /* Clean up the ndlp on Fabric connections */
5248 lpfc_drop_node(vport
, ndlp
);
5250 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
5251 /* Fail outstanding IO now since device
5252 * is marked for PLOGI.
5254 lpfc_unreg_rpi(vport
, ndlp
);
5257 if (vport
->port_state
!= LPFC_FLOGI
) {
5258 if (phba
->sli_rev
<= LPFC_SLI_REV3
)
5259 lpfc_initial_flogi(vport
);
5261 lpfc_issue_init_vfi(vport
);
5268 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5269 /* Initial FLOGI timeout */
5270 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5271 "0222 Initial %s timeout\n",
5272 vport
->vpi
? "FDISC" : "FLOGI");
5274 /* Assume no Fabric and go on with discovery.
5275 * Check for outstanding ELS FLOGI to abort.
5278 /* FLOGI failed, so just use loop map to make discovery list */
5279 lpfc_disc_list_loopmap(vport
);
5281 /* Start discovery */
5282 lpfc_disc_start(vport
);
5285 case LPFC_FABRIC_CFG_LINK
:
5286 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5288 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5289 "0223 Timeout while waiting for "
5290 "NameServer login\n");
5291 /* Next look for NameServer ndlp */
5292 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5293 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5294 lpfc_els_abort(phba
, ndlp
);
5296 /* ReStart discovery */
5300 /* Check for wait for NameServer Rsp timeout */
5301 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5302 "0224 NameServer Query timeout "
5304 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5306 if (vport
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
5307 /* Try it one more time */
5308 vport
->fc_ns_retry
++;
5309 rc
= lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
,
5310 vport
->fc_ns_retry
, 0);
5314 vport
->fc_ns_retry
= 0;
5318 * Discovery is over.
5319 * set port_state to PORT_READY if SLI2.
5320 * cmpl_reg_vpi will set port_state to READY for SLI3.
5322 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5323 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5324 lpfc_issue_reg_vpi(phba
, vport
);
5326 lpfc_issue_clear_la(phba
, vport
);
5327 vport
->port_state
= LPFC_VPORT_READY
;
5331 /* Setup and issue mailbox INITIALIZE LINK command */
5332 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5333 if (!initlinkmbox
) {
5334 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5335 "0206 Device Discovery "
5336 "completion error\n");
5337 phba
->link_state
= LPFC_HBA_ERROR
;
5341 lpfc_linkdown(phba
);
5342 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
5343 phba
->cfg_link_speed
);
5344 initlinkmbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5345 initlinkmbox
->vport
= vport
;
5346 initlinkmbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5347 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
, MBX_NOWAIT
);
5348 lpfc_set_loopback_flag(phba
);
5349 if (rc
== MBX_NOT_FINISHED
)
5350 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
5354 case LPFC_DISC_AUTH
:
5355 /* Node Authentication timeout */
5356 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5357 "0227 Node Authentication timeout\n");
5358 lpfc_disc_flush_list(vport
);
5361 * set port_state to PORT_READY if SLI2.
5362 * cmpl_reg_vpi will set port_state to READY for SLI3.
5364 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5365 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5366 lpfc_issue_reg_vpi(phba
, vport
);
5367 else { /* NPIV Not enabled */
5368 lpfc_issue_clear_la(phba
, vport
);
5369 vport
->port_state
= LPFC_VPORT_READY
;
5374 case LPFC_VPORT_READY
:
5375 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5376 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5377 "0231 RSCN timeout Data: x%x "
5379 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5381 /* Cleanup any outstanding ELS commands */
5382 lpfc_els_flush_cmd(vport
);
5384 lpfc_els_flush_rscn(vport
);
5385 lpfc_disc_flush_list(vport
);
5390 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5391 "0273 Unexpected discovery timeout, "
5392 "vport State x%x\n", vport
->port_state
);
5396 switch (phba
->link_state
) {
5398 /* CLEAR LA timeout */
5399 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5400 "0228 CLEAR LA timeout\n");
5405 lpfc_issue_clear_la(phba
, vport
);
5407 case LPFC_LINK_UNKNOWN
:
5408 case LPFC_WARM_START
:
5409 case LPFC_INIT_START
:
5410 case LPFC_INIT_MBX_CMDS
:
5411 case LPFC_LINK_DOWN
:
5412 case LPFC_HBA_ERROR
:
5413 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5414 "0230 Unexpected timeout, hba link "
5415 "state x%x\n", phba
->link_state
);
5419 case LPFC_HBA_READY
:
5424 lpfc_disc_flush_list(vport
);
5425 psli
->ring
[(psli
->extra_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
5426 psli
->ring
[(psli
->fcp_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
5427 psli
->ring
[(psli
->next_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
5428 vport
->port_state
= LPFC_VPORT_READY
;
5435 * This routine handles processing a NameServer REG_LOGIN mailbox
5436 * command upon completion. It is setup in the LPFC_MBOXQ
5437 * as the completion routine when the command is
5438 * handed off to the SLI layer.
5441 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5443 MAILBOX_t
*mb
= &pmb
->u
.mb
;
5444 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
5445 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5446 struct lpfc_vport
*vport
= pmb
->vport
;
5448 pmb
->context1
= NULL
;
5449 pmb
->context2
= NULL
;
5451 if (phba
->sli_rev
< LPFC_SLI_REV4
)
5452 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
5453 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
5454 ndlp
->nlp_type
|= NLP_FABRIC
;
5455 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
5458 * Start issuing Fabric-Device Management Interface (FDMI) command to
5459 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5460 * fdmi-on=2 (supporting RPA/hostnmae)
5463 if (vport
->cfg_fdmi_on
== 1)
5464 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DHBA
);
5466 mod_timer(&vport
->fc_fdmitmo
,
5467 jiffies
+ msecs_to_jiffies(1000 * 60));
5469 /* decrement the node reference count held for this callback
5473 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
5475 mempool_free(pmb
, phba
->mbox_mem_pool
);
5481 lpfc_filter_by_rpi(struct lpfc_nodelist
*ndlp
, void *param
)
5483 uint16_t *rpi
= param
;
5485 /* check for active node */
5486 if (!NLP_CHK_NODE_ACT(ndlp
))
5489 return ndlp
->nlp_rpi
== *rpi
;
5493 lpfc_filter_by_wwpn(struct lpfc_nodelist
*ndlp
, void *param
)
5495 return memcmp(&ndlp
->nlp_portname
, param
,
5496 sizeof(ndlp
->nlp_portname
)) == 0;
5499 static struct lpfc_nodelist
*
5500 __lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
5502 struct lpfc_nodelist
*ndlp
;
5504 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5505 if (filter(ndlp
, param
)) {
5506 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5507 "3185 FIND node filter %p DID "
5508 "Data: x%p x%x x%x\n",
5509 filter
, ndlp
, ndlp
->nlp_DID
,
5514 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5515 "3186 FIND node filter %p NOT FOUND.\n", filter
);
5520 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5521 * returns the node list element pointer else return NULL.
5523 struct lpfc_nodelist
*
5524 __lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5526 return __lpfc_find_node(vport
, lpfc_filter_by_rpi
, &rpi
);
5530 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5531 * returns the node element list pointer else return NULL.
5533 struct lpfc_nodelist
*
5534 lpfc_findnode_wwpn(struct lpfc_vport
*vport
, struct lpfc_name
*wwpn
)
5536 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5537 struct lpfc_nodelist
*ndlp
;
5539 spin_lock_irq(shost
->host_lock
);
5540 ndlp
= __lpfc_find_node(vport
, lpfc_filter_by_wwpn
, wwpn
);
5541 spin_unlock_irq(shost
->host_lock
);
5546 * This routine looks up the ndlp lists for the given RPI. If the rpi
5547 * is found, the routine returns the node element list pointer else
5550 struct lpfc_nodelist
*
5551 lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5553 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5554 struct lpfc_nodelist
*ndlp
;
5556 spin_lock_irq(shost
->host_lock
);
5557 ndlp
= __lpfc_findnode_rpi(vport
, rpi
);
5558 spin_unlock_irq(shost
->host_lock
);
5563 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5564 * @phba: pointer to lpfc hba data structure.
5565 * @vpi: the physical host virtual N_Port identifier.
5567 * This routine finds a vport on a HBA (referred by @phba) through a
5568 * @vpi. The function walks the HBA's vport list and returns the address
5569 * of the vport with the matching @vpi.
5572 * NULL - No vport with the matching @vpi found
5573 * Otherwise - Address to the vport with the matching @vpi.
5576 lpfc_find_vport_by_vpid(struct lpfc_hba
*phba
, uint16_t vpi
)
5578 struct lpfc_vport
*vport
;
5579 unsigned long flags
;
5582 /* The physical ports are always vpi 0 - translate is unnecessary. */
5585 * Translate the physical vpi to the logical vpi. The
5586 * vport stores the logical vpi.
5588 for (i
= 0; i
< phba
->max_vpi
; i
++) {
5589 if (vpi
== phba
->vpi_ids
[i
])
5593 if (i
>= phba
->max_vpi
) {
5594 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
5595 "2936 Could not find Vport mapped "
5596 "to vpi %d\n", vpi
);
5601 spin_lock_irqsave(&phba
->hbalock
, flags
);
5602 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
5603 if (vport
->vpi
== i
) {
5604 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5608 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5613 lpfc_nlp_init(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5616 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
5618 lpfc_initialize_node(vport
, ndlp
, did
);
5619 INIT_LIST_HEAD(&ndlp
->nlp_listp
);
5621 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
5622 "node init: did:x%x",
5623 ndlp
->nlp_DID
, 0, 0);
5628 /* This routine releases all resources associated with a specifc NPort's ndlp
5629 * and mempool_free's the nodelist.
5632 lpfc_nlp_release(struct kref
*kref
)
5634 struct lpfc_hba
*phba
;
5635 unsigned long flags
;
5636 struct lpfc_nodelist
*ndlp
= container_of(kref
, struct lpfc_nodelist
,
5639 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5640 "node release: did:x%x flg:x%x type:x%x",
5641 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
5643 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
5644 "0279 lpfc_nlp_release: ndlp:x%p did %x "
5645 "usgmap:x%x refcnt:%d\n",
5646 (void *)ndlp
, ndlp
->nlp_DID
, ndlp
->nlp_usg_map
,
5647 atomic_read(&ndlp
->kref
.refcount
));
5649 /* remove ndlp from action. */
5650 lpfc_nlp_remove(ndlp
->vport
, ndlp
);
5652 /* clear the ndlp active flag for all release cases */
5654 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5655 NLP_CLR_NODE_ACT(ndlp
);
5656 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5657 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5658 lpfc_sli4_free_rpi(phba
, ndlp
->nlp_rpi
);
5660 /* free ndlp memory for final ndlp release */
5661 if (NLP_CHK_FREE_REQ(ndlp
)) {
5662 kfree(ndlp
->lat_data
);
5663 mempool_free(ndlp
, ndlp
->phba
->nlp_mem_pool
);
5667 /* This routine bumps the reference count for a ndlp structure to ensure
5668 * that one discovery thread won't free a ndlp while another discovery thread
5671 struct lpfc_nodelist
*
5672 lpfc_nlp_get(struct lpfc_nodelist
*ndlp
)
5674 struct lpfc_hba
*phba
;
5675 unsigned long flags
;
5678 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5679 "node get: did:x%x flg:x%x refcnt:x%x",
5680 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5681 atomic_read(&ndlp
->kref
.refcount
));
5682 /* The check of ndlp usage to prevent incrementing the
5683 * ndlp reference count that is in the process of being
5687 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5688 if (!NLP_CHK_NODE_ACT(ndlp
) || NLP_CHK_FREE_ACK(ndlp
)) {
5689 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5690 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5691 "0276 lpfc_nlp_get: ndlp:x%p "
5692 "usgmap:x%x refcnt:%d\n",
5693 (void *)ndlp
, ndlp
->nlp_usg_map
,
5694 atomic_read(&ndlp
->kref
.refcount
));
5697 kref_get(&ndlp
->kref
);
5698 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5703 /* This routine decrements the reference count for a ndlp structure. If the
5704 * count goes to 0, this indicates the the associated nodelist should be
5705 * freed. Returning 1 indicates the ndlp resource has been released; on the
5706 * other hand, returning 0 indicates the ndlp resource has not been released
5710 lpfc_nlp_put(struct lpfc_nodelist
*ndlp
)
5712 struct lpfc_hba
*phba
;
5713 unsigned long flags
;
5718 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5719 "node put: did:x%x flg:x%x refcnt:x%x",
5720 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5721 atomic_read(&ndlp
->kref
.refcount
));
5723 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5724 /* Check the ndlp memory free acknowledge flag to avoid the
5725 * possible race condition that kref_put got invoked again
5726 * after previous one has done ndlp memory free.
5728 if (NLP_CHK_FREE_ACK(ndlp
)) {
5729 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5730 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5731 "0274 lpfc_nlp_put: ndlp:x%p "
5732 "usgmap:x%x refcnt:%d\n",
5733 (void *)ndlp
, ndlp
->nlp_usg_map
,
5734 atomic_read(&ndlp
->kref
.refcount
));
5737 /* Check the ndlp inactivate log flag to avoid the possible
5738 * race condition that kref_put got invoked again after ndlp
5739 * is already in inactivating state.
5741 if (NLP_CHK_IACT_REQ(ndlp
)) {
5742 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5743 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5744 "0275 lpfc_nlp_put: ndlp:x%p "
5745 "usgmap:x%x refcnt:%d\n",
5746 (void *)ndlp
, ndlp
->nlp_usg_map
,
5747 atomic_read(&ndlp
->kref
.refcount
));
5750 /* For last put, mark the ndlp usage flags to make sure no
5751 * other kref_get and kref_put on the same ndlp shall get
5752 * in between the process when the final kref_put has been
5753 * invoked on this ndlp.
5755 if (atomic_read(&ndlp
->kref
.refcount
) == 1) {
5756 /* Indicate ndlp is put to inactive state. */
5757 NLP_SET_IACT_REQ(ndlp
);
5758 /* Acknowledge ndlp memory free has been seen. */
5759 if (NLP_CHK_FREE_REQ(ndlp
))
5760 NLP_SET_FREE_ACK(ndlp
);
5762 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5763 /* Note, the kref_put returns 1 when decrementing a reference
5764 * count that was 1, it invokes the release callback function,
5765 * but it still left the reference count as 1 (not actually
5766 * performs the last decrementation). Otherwise, it actually
5767 * decrements the reference count and returns 0.
5769 return kref_put(&ndlp
->kref
, lpfc_nlp_release
);
5772 /* This routine free's the specified nodelist if it is not in use
5773 * by any other discovery thread. This routine returns 1 if the
5774 * ndlp has been freed. A return value of 0 indicates the ndlp is
5775 * not yet been released.
5778 lpfc_nlp_not_used(struct lpfc_nodelist
*ndlp
)
5780 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5781 "node not used: did:x%x flg:x%x refcnt:x%x",
5782 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5783 atomic_read(&ndlp
->kref
.refcount
));
5784 if (atomic_read(&ndlp
->kref
.refcount
) == 1)
5785 if (lpfc_nlp_put(ndlp
))
5791 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5792 * @phba: Pointer to hba context object.
5794 * This function iterate through all FC nodes associated
5795 * will all vports to check if there is any node with
5796 * fc_rports associated with it. If there is an fc_rport
5797 * associated with the node, then the node is either in
5798 * discovered state or its devloss_timer is pending.
5801 lpfc_fcf_inuse(struct lpfc_hba
*phba
)
5803 struct lpfc_vport
**vports
;
5805 struct lpfc_nodelist
*ndlp
;
5806 struct Scsi_Host
*shost
;
5808 vports
= lpfc_create_vport_work_array(phba
);
5810 /* If driver cannot allocate memory, indicate fcf is in use */
5814 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
5815 shost
= lpfc_shost_from_vport(vports
[i
]);
5816 spin_lock_irq(shost
->host_lock
);
5818 * IF the CVL_RCVD bit is not set then we have sent the
5820 * If dev_loss fires while we are waiting we do not want to
5823 if (!(vports
[i
]->fc_flag
& FC_VPORT_CVL_RCVD
)) {
5824 spin_unlock_irq(shost
->host_lock
);
5828 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
5829 if (NLP_CHK_NODE_ACT(ndlp
) && ndlp
->rport
&&
5830 (ndlp
->rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)) {
5832 spin_unlock_irq(shost
->host_lock
);
5834 } else if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
5836 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
5837 "2624 RPI %x DID %x flag %x "
5838 "still logged in\n",
5839 ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
5843 spin_unlock_irq(shost
->host_lock
);
5846 lpfc_destroy_vport_work_array(phba
, vports
);
5851 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5852 * @phba: Pointer to hba context object.
5853 * @mboxq: Pointer to mailbox object.
5855 * This function frees memory associated with the mailbox command.
5858 lpfc_unregister_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5860 struct lpfc_vport
*vport
= mboxq
->vport
;
5861 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5863 if (mboxq
->u
.mb
.mbxStatus
) {
5864 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5865 "2555 UNREG_VFI mbxStatus error x%x "
5867 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
5869 spin_lock_irq(shost
->host_lock
);
5870 phba
->pport
->fc_flag
&= ~FC_VFI_REGISTERED
;
5871 spin_unlock_irq(shost
->host_lock
);
5872 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5877 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5878 * @phba: Pointer to hba context object.
5879 * @mboxq: Pointer to mailbox object.
5881 * This function frees memory associated with the mailbox command.
5884 lpfc_unregister_fcfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5886 struct lpfc_vport
*vport
= mboxq
->vport
;
5888 if (mboxq
->u
.mb
.mbxStatus
) {
5889 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5890 "2550 UNREG_FCFI mbxStatus error x%x "
5892 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
5894 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5899 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
5900 * @phba: Pointer to hba context object.
5902 * This function prepare the HBA for unregistering the currently registered
5903 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5907 lpfc_unregister_fcf_prep(struct lpfc_hba
*phba
)
5909 struct lpfc_vport
**vports
;
5910 struct lpfc_nodelist
*ndlp
;
5911 struct Scsi_Host
*shost
;
5914 /* Unregister RPIs */
5915 if (lpfc_fcf_inuse(phba
))
5916 lpfc_unreg_hba_rpis(phba
);
5918 /* At this point, all discovery is aborted */
5919 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
5921 /* Unregister VPIs */
5922 vports
= lpfc_create_vport_work_array(phba
);
5923 if (vports
&& (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))
5924 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
5925 /* Stop FLOGI/FDISC retries */
5926 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
5928 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
5929 lpfc_cleanup_pending_mbox(vports
[i
]);
5930 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5931 lpfc_sli4_unreg_all_rpis(vports
[i
]);
5932 lpfc_mbx_unreg_vpi(vports
[i
]);
5933 shost
= lpfc_shost_from_vport(vports
[i
]);
5934 spin_lock_irq(shost
->host_lock
);
5935 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
5936 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
5937 spin_unlock_irq(shost
->host_lock
);
5939 lpfc_destroy_vport_work_array(phba
, vports
);
5940 if (i
== 0 && (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))) {
5941 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
5943 lpfc_cancel_retry_delay_tmo(phba
->pport
, ndlp
);
5944 lpfc_cleanup_pending_mbox(phba
->pport
);
5945 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5946 lpfc_sli4_unreg_all_rpis(phba
->pport
);
5947 lpfc_mbx_unreg_vpi(phba
->pport
);
5948 shost
= lpfc_shost_from_vport(phba
->pport
);
5949 spin_lock_irq(shost
->host_lock
);
5950 phba
->pport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
5951 phba
->pport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
5952 spin_unlock_irq(shost
->host_lock
);
5955 /* Cleanup any outstanding ELS commands */
5956 lpfc_els_flush_all_cmd(phba
);
5958 /* Unregister the physical port VFI */
5959 rc
= lpfc_issue_unreg_vfi(phba
->pport
);
5964 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5965 * @phba: Pointer to hba context object.
5967 * This function issues synchronous unregister FCF mailbox command to HBA to
5968 * unregister the currently registered FCF record. The driver does not reset
5969 * the driver FCF usage state flags.
5971 * Return 0 if successfully issued, none-zero otherwise.
5974 lpfc_sli4_unregister_fcf(struct lpfc_hba
*phba
)
5979 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5981 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5982 "2551 UNREG_FCFI mbox allocation failed"
5983 "HBA state x%x\n", phba
->pport
->port_state
);
5986 lpfc_unreg_fcfi(mbox
, phba
->fcf
.fcfi
);
5987 mbox
->vport
= phba
->pport
;
5988 mbox
->mbox_cmpl
= lpfc_unregister_fcfi_cmpl
;
5989 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5991 if (rc
== MBX_NOT_FINISHED
) {
5992 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5993 "2552 Unregister FCFI command failed rc x%x "
5995 rc
, phba
->pport
->port_state
);
6002 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6003 * @phba: Pointer to hba context object.
6005 * This function unregisters the currently reigstered FCF. This function
6006 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6009 lpfc_unregister_fcf_rescan(struct lpfc_hba
*phba
)
6013 /* Preparation for unregistering fcf */
6014 rc
= lpfc_unregister_fcf_prep(phba
);
6016 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
6017 "2748 Failed to prepare for unregistering "
6018 "HBA's FCF record: rc=%d\n", rc
);
6022 /* Now, unregister FCF record and reset HBA FCF state */
6023 rc
= lpfc_sli4_unregister_fcf(phba
);
6026 /* Reset HBA FCF states after successful unregister FCF */
6027 phba
->fcf
.fcf_flag
= 0;
6028 phba
->fcf
.current_rec
.flag
= 0;
6031 * If driver is not unloading, check if there is any other
6032 * FCF record that can be used for discovery.
6034 if ((phba
->pport
->load_flag
& FC_UNLOADING
) ||
6035 (phba
->link_state
< LPFC_LINK_UP
))
6038 /* This is considered as the initial FCF discovery scan */
6039 spin_lock_irq(&phba
->hbalock
);
6040 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
6041 spin_unlock_irq(&phba
->hbalock
);
6043 /* Reset FCF roundrobin bmask for new discovery */
6044 lpfc_sli4_clear_fcf_rr_bmask(phba
);
6046 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
6049 spin_lock_irq(&phba
->hbalock
);
6050 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
6051 spin_unlock_irq(&phba
->hbalock
);
6052 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6053 "2553 lpfc_unregister_unused_fcf failed "
6054 "to read FCF record HBA state x%x\n",
6055 phba
->pport
->port_state
);
6060 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6061 * @phba: Pointer to hba context object.
6063 * This function just unregisters the currently reigstered FCF. It does not
6064 * try to find another FCF for discovery.
6067 lpfc_unregister_fcf(struct lpfc_hba
*phba
)
6071 /* Preparation for unregistering fcf */
6072 rc
= lpfc_unregister_fcf_prep(phba
);
6074 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
6075 "2749 Failed to prepare for unregistering "
6076 "HBA's FCF record: rc=%d\n", rc
);
6080 /* Now, unregister FCF record and reset HBA FCF state */
6081 rc
= lpfc_sli4_unregister_fcf(phba
);
6084 /* Set proper HBA FCF states after successful unregister FCF */
6085 spin_lock_irq(&phba
->hbalock
);
6086 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
6087 spin_unlock_irq(&phba
->hbalock
);
6091 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6092 * @phba: Pointer to hba context object.
6094 * This function check if there are any connected remote port for the FCF and
6095 * if all the devices are disconnected, this function unregister FCFI.
6096 * This function also tries to use another FCF for discovery.
6099 lpfc_unregister_unused_fcf(struct lpfc_hba
*phba
)
6102 * If HBA is not running in FIP mode, if HBA does not support
6103 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6104 * registered, do nothing.
6106 spin_lock_irq(&phba
->hbalock
);
6107 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) ||
6108 !(phba
->fcf
.fcf_flag
& FCF_REGISTERED
) ||
6109 !(phba
->hba_flag
& HBA_FIP_SUPPORT
) ||
6110 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) ||
6111 (phba
->pport
->port_state
== LPFC_FLOGI
)) {
6112 spin_unlock_irq(&phba
->hbalock
);
6115 spin_unlock_irq(&phba
->hbalock
);
6117 if (lpfc_fcf_inuse(phba
))
6120 lpfc_unregister_fcf_rescan(phba
);
6124 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6125 * @phba: Pointer to hba context object.
6126 * @buff: Buffer containing the FCF connection table as in the config
6128 * This function create driver data structure for the FCF connection
6129 * record table read from config region 23.
6132 lpfc_read_fcf_conn_tbl(struct lpfc_hba
*phba
,
6135 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
6136 struct lpfc_fcf_conn_hdr
*conn_hdr
;
6137 struct lpfc_fcf_conn_rec
*conn_rec
;
6138 uint32_t record_count
;
6141 /* Free the current connect table */
6142 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
6143 &phba
->fcf_conn_rec_list
, list
) {
6144 list_del_init(&conn_entry
->list
);
6148 conn_hdr
= (struct lpfc_fcf_conn_hdr
*) buff
;
6149 record_count
= conn_hdr
->length
* sizeof(uint32_t)/
6150 sizeof(struct lpfc_fcf_conn_rec
);
6152 conn_rec
= (struct lpfc_fcf_conn_rec
*)
6153 (buff
+ sizeof(struct lpfc_fcf_conn_hdr
));
6155 for (i
= 0; i
< record_count
; i
++) {
6156 if (!(conn_rec
[i
].flags
& FCFCNCT_VALID
))
6158 conn_entry
= kzalloc(sizeof(struct lpfc_fcf_conn_entry
),
6161 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6162 "2566 Failed to allocate connection"
6167 memcpy(&conn_entry
->conn_rec
, &conn_rec
[i
],
6168 sizeof(struct lpfc_fcf_conn_rec
));
6169 conn_entry
->conn_rec
.vlan_tag
=
6170 conn_entry
->conn_rec
.vlan_tag
;
6171 conn_entry
->conn_rec
.flags
=
6172 conn_entry
->conn_rec
.flags
;
6173 list_add_tail(&conn_entry
->list
,
6174 &phba
->fcf_conn_rec_list
);
6177 if (!list_empty(&phba
->fcf_conn_rec_list
)) {
6179 list_for_each_entry(conn_entry
, &phba
->fcf_conn_rec_list
,
6181 conn_rec
= &conn_entry
->conn_rec
;
6182 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6183 "3345 FCF connection list rec[%02d]: "
6184 "flags:x%04x, vtag:x%04x, "
6185 "fabric_name:x%02x:%02x:%02x:%02x:"
6186 "%02x:%02x:%02x:%02x, "
6187 "switch_name:x%02x:%02x:%02x:%02x:"
6188 "%02x:%02x:%02x:%02x\n", i
++,
6189 conn_rec
->flags
, conn_rec
->vlan_tag
,
6190 conn_rec
->fabric_name
[0],
6191 conn_rec
->fabric_name
[1],
6192 conn_rec
->fabric_name
[2],
6193 conn_rec
->fabric_name
[3],
6194 conn_rec
->fabric_name
[4],
6195 conn_rec
->fabric_name
[5],
6196 conn_rec
->fabric_name
[6],
6197 conn_rec
->fabric_name
[7],
6198 conn_rec
->switch_name
[0],
6199 conn_rec
->switch_name
[1],
6200 conn_rec
->switch_name
[2],
6201 conn_rec
->switch_name
[3],
6202 conn_rec
->switch_name
[4],
6203 conn_rec
->switch_name
[5],
6204 conn_rec
->switch_name
[6],
6205 conn_rec
->switch_name
[7]);
6211 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6212 * @phba: Pointer to hba context object.
6213 * @buff: Buffer containing the FCoE parameter data structure.
6215 * This function update driver data structure with config
6216 * parameters read from config region 23.
6219 lpfc_read_fcoe_param(struct lpfc_hba
*phba
,
6222 struct lpfc_fip_param_hdr
*fcoe_param_hdr
;
6223 struct lpfc_fcoe_params
*fcoe_param
;
6225 fcoe_param_hdr
= (struct lpfc_fip_param_hdr
*)
6227 fcoe_param
= (struct lpfc_fcoe_params
*)
6228 (buff
+ sizeof(struct lpfc_fip_param_hdr
));
6230 if ((fcoe_param_hdr
->parm_version
!= FIPP_VERSION
) ||
6231 (fcoe_param_hdr
->length
!= FCOE_PARAM_LENGTH
))
6234 if (fcoe_param_hdr
->parm_flags
& FIPP_VLAN_VALID
) {
6235 phba
->valid_vlan
= 1;
6236 phba
->vlan_id
= le16_to_cpu(fcoe_param
->vlan_tag
) &
6240 phba
->fc_map
[0] = fcoe_param
->fc_map
[0];
6241 phba
->fc_map
[1] = fcoe_param
->fc_map
[1];
6242 phba
->fc_map
[2] = fcoe_param
->fc_map
[2];
6247 * lpfc_get_rec_conf23 - Get a record type in config region data.
6248 * @buff: Buffer containing config region 23 data.
6249 * @size: Size of the data buffer.
6250 * @rec_type: Record type to be searched.
6252 * This function searches config region data to find the beginning
6253 * of the record specified by record_type. If record found, this
6254 * function return pointer to the record else return NULL.
6257 lpfc_get_rec_conf23(uint8_t *buff
, uint32_t size
, uint8_t rec_type
)
6259 uint32_t offset
= 0, rec_length
;
6261 if ((buff
[0] == LPFC_REGION23_LAST_REC
) ||
6262 (size
< sizeof(uint32_t)))
6265 rec_length
= buff
[offset
+ 1];
6268 * One TLV record has one word header and number of data words
6269 * specified in the rec_length field of the record header.
6271 while ((offset
+ rec_length
* sizeof(uint32_t) + sizeof(uint32_t))
6273 if (buff
[offset
] == rec_type
)
6274 return &buff
[offset
];
6276 if (buff
[offset
] == LPFC_REGION23_LAST_REC
)
6279 offset
+= rec_length
* sizeof(uint32_t) + sizeof(uint32_t);
6280 rec_length
= buff
[offset
+ 1];
6286 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6287 * @phba: Pointer to lpfc_hba data structure.
6288 * @buff: Buffer containing config region 23 data.
6289 * @size: Size of the data buffer.
6291 * This function parses the FCoE config parameters in config region 23 and
6292 * populate driver data structure with the parameters.
6295 lpfc_parse_fcoe_conf(struct lpfc_hba
*phba
,
6299 uint32_t offset
= 0, rec_length
;
6303 * If data size is less than 2 words signature and version cannot be
6306 if (size
< 2*sizeof(uint32_t))
6309 /* Check the region signature first */
6310 if (memcmp(buff
, LPFC_REGION23_SIGNATURE
, 4)) {
6311 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6312 "2567 Config region 23 has bad signature\n");
6318 /* Check the data structure version */
6319 if (buff
[offset
] != LPFC_REGION23_VERSION
) {
6320 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6321 "2568 Config region 23 has bad version\n");
6326 rec_length
= buff
[offset
+ 1];
6328 /* Read FCoE param record */
6329 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6330 size
- offset
, FCOE_PARAM_TYPE
);
6332 lpfc_read_fcoe_param(phba
, rec_ptr
);
6334 /* Read FCF connection table */
6335 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6336 size
- offset
, FCOE_CONN_TBL_TYPE
);
6338 lpfc_read_fcf_conn_tbl(phba
, rec_ptr
);