1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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 spin_lock_irq(&phba
->hbalock
);
164 /* We need to hold the node by incrementing the reference
165 * count until this queued work is done
167 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
168 if (evtp
->evt_arg1
) {
169 evtp
->evt
= LPFC_EVT_DEV_LOSS
;
170 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
171 lpfc_worker_wake_up(phba
);
173 spin_unlock_irq(&phba
->hbalock
);
179 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
180 * @ndlp: Pointer to remote node object.
182 * This function is called from the worker thread when devloss timeout timer
183 * expires. For SLI4 host, this routine shall return 1 when at lease one
184 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
185 * routine shall return 0 when there is no remote node is still in use of FCF
186 * when devloss timeout happened to this @ndlp.
189 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist
*ndlp
)
191 struct lpfc_rport_data
*rdata
;
192 struct fc_rport
*rport
;
193 struct lpfc_vport
*vport
;
194 struct lpfc_hba
*phba
;
206 rdata
= rport
->dd_data
;
207 name
= (uint8_t *) &ndlp
->nlp_portname
;
211 if (phba
->sli_rev
== LPFC_SLI_REV4
)
212 fcf_inuse
= lpfc_fcf_inuse(phba
);
214 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
215 "rport devlosstmo:did:x%x type:x%x id:x%x",
216 ndlp
->nlp_DID
, ndlp
->nlp_type
, rport
->scsi_target_id
);
218 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
219 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
220 ndlp
->nlp_DID
, ndlp
->rport
, ndlp
->nlp_flag
);
222 /* Don't defer this if we are in the process of deleting the vport
223 * or unloading the driver. The unload will cleanup the node
224 * appropriately we just need to cleanup the ndlp rport info here.
226 if (vport
->load_flag
& FC_UNLOADING
) {
227 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
228 /* flush the target */
229 lpfc_sli_abort_iocb(vport
,
230 &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
231 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
233 put_node
= rdata
->pnode
!= NULL
;
234 put_rport
= ndlp
->rport
!= NULL
;
240 put_device(&rport
->dev
);
244 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
) {
245 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
246 "0284 Devloss timeout Ignored on "
247 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
249 *name
, *(name
+1), *(name
+2), *(name
+3),
250 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
255 if (ndlp
->nlp_type
& NLP_FABRIC
) {
256 /* We will clean up these Nodes in linkup */
257 put_node
= rdata
->pnode
!= NULL
;
258 put_rport
= ndlp
->rport
!= NULL
;
264 put_device(&rport
->dev
);
268 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
270 /* flush the target */
271 lpfc_sli_abort_iocb(vport
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
272 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
276 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
277 "0203 Devloss timeout on "
278 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
279 "NPort x%06x Data: x%x x%x x%x\n",
280 *name
, *(name
+1), *(name
+2), *(name
+3),
281 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
282 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
283 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
285 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
286 "0204 Devloss timeout on "
287 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
288 "NPort x%06x Data: x%x x%x x%x\n",
289 *name
, *(name
+1), *(name
+2), *(name
+3),
290 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
291 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
292 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
295 put_node
= rdata
->pnode
!= NULL
;
296 put_rport
= ndlp
->rport
!= NULL
;
302 put_device(&rport
->dev
);
304 if (!(vport
->load_flag
& FC_UNLOADING
) &&
305 !(ndlp
->nlp_flag
& NLP_DELAY_TMO
) &&
306 !(ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) &&
307 (ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
308 (ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) &&
309 (ndlp
->nlp_state
!= NLP_STE_PRLI_ISSUE
))
310 lpfc_disc_state_machine(vport
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
316 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
317 * @phba: Pointer to hba context object.
318 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
319 * @nlp_did: remote node identifer with devloss timeout.
321 * This function is called from the worker thread after invoking devloss
322 * timeout handler and releasing the reference count for the ndlp with
323 * which the devloss timeout was handled for SLI4 host. For the devloss
324 * timeout of the last remote node which had been in use of FCF, when this
325 * routine is invoked, it shall be guaranteed that none of the remote are
326 * in-use of FCF. When devloss timeout to the last remote using the FCF,
327 * if the FIP engine is neither in FCF table scan process nor roundrobin
328 * failover process, the in-use FCF shall be unregistered. If the FIP
329 * engine is in FCF discovery process, the devloss timeout state shall
330 * be set for either the FCF table scan process or roundrobin failover
331 * process to unregister the in-use FCF.
334 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba
*phba
, int fcf_inuse
,
337 /* If devloss timeout happened to a remote node when FCF had no
338 * longer been in-use, do nothing.
343 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) && !lpfc_fcf_inuse(phba
)) {
344 spin_lock_irq(&phba
->hbalock
);
345 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
346 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
347 spin_unlock_irq(&phba
->hbalock
);
350 phba
->hba_flag
|= HBA_DEVLOSS_TMO
;
351 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
352 "2847 Last remote node (x%x) using "
353 "FCF devloss tmo\n", nlp_did
);
355 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PROG
) {
356 spin_unlock_irq(&phba
->hbalock
);
357 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
358 "2868 Devloss tmo to FCF rediscovery "
362 if (!(phba
->hba_flag
& (FCF_TS_INPROG
| FCF_RR_INPROG
))) {
363 spin_unlock_irq(&phba
->hbalock
);
364 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
365 "2869 Devloss tmo to idle FIP engine, "
366 "unreg in-use FCF and rescan.\n");
367 /* Unregister in-use FCF and rescan */
368 lpfc_unregister_fcf_rescan(phba
);
371 spin_unlock_irq(&phba
->hbalock
);
372 if (phba
->hba_flag
& FCF_TS_INPROG
)
373 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
374 "2870 FCF table scan in progress\n");
375 if (phba
->hba_flag
& FCF_RR_INPROG
)
376 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
377 "2871 FLOGI roundrobin FCF failover "
380 lpfc_unregister_unused_fcf(phba
);
384 * lpfc_alloc_fast_evt - Allocates data structure for posting event
385 * @phba: Pointer to hba context object.
387 * This function is called from the functions which need to post
388 * events from interrupt context. This function allocates data
389 * structure required for posting event. It also keeps track of
390 * number of events pending and prevent event storm when there are
393 struct lpfc_fast_path_event
*
394 lpfc_alloc_fast_evt(struct lpfc_hba
*phba
) {
395 struct lpfc_fast_path_event
*ret
;
397 /* If there are lot of fast event do not exhaust memory due to this */
398 if (atomic_read(&phba
->fast_event_count
) > LPFC_MAX_EVT_COUNT
)
401 ret
= kzalloc(sizeof(struct lpfc_fast_path_event
),
404 atomic_inc(&phba
->fast_event_count
);
405 INIT_LIST_HEAD(&ret
->work_evt
.evt_listp
);
406 ret
->work_evt
.evt
= LPFC_EVT_FASTPATH_MGMT_EVT
;
412 * lpfc_free_fast_evt - Frees event data structure
413 * @phba: Pointer to hba context object.
414 * @evt: Event object which need to be freed.
416 * This function frees the data structure required for posting
420 lpfc_free_fast_evt(struct lpfc_hba
*phba
,
421 struct lpfc_fast_path_event
*evt
) {
423 atomic_dec(&phba
->fast_event_count
);
428 * lpfc_send_fastpath_evt - Posts events generated from fast path
429 * @phba: Pointer to hba context object.
430 * @evtp: Event data structure.
432 * This function is called from worker thread, when the interrupt
433 * context need to post an event. This function posts the event
434 * to fc transport netlink interface.
437 lpfc_send_fastpath_evt(struct lpfc_hba
*phba
,
438 struct lpfc_work_evt
*evtp
)
440 unsigned long evt_category
, evt_sub_category
;
441 struct lpfc_fast_path_event
*fast_evt_data
;
443 uint32_t evt_data_size
;
444 struct Scsi_Host
*shost
;
446 fast_evt_data
= container_of(evtp
, struct lpfc_fast_path_event
,
449 evt_category
= (unsigned long) fast_evt_data
->un
.fabric_evt
.event_type
;
450 evt_sub_category
= (unsigned long) fast_evt_data
->un
.
451 fabric_evt
.subcategory
;
452 shost
= lpfc_shost_from_vport(fast_evt_data
->vport
);
453 if (evt_category
== FC_REG_FABRIC_EVENT
) {
454 if (evt_sub_category
== LPFC_EVENT_FCPRDCHKERR
) {
455 evt_data
= (char *) &fast_evt_data
->un
.read_check_error
;
456 evt_data_size
= sizeof(fast_evt_data
->un
.
458 } else if ((evt_sub_category
== LPFC_EVENT_FABRIC_BUSY
) ||
459 (evt_sub_category
== LPFC_EVENT_PORT_BUSY
)) {
460 evt_data
= (char *) &fast_evt_data
->un
.fabric_evt
;
461 evt_data_size
= sizeof(fast_evt_data
->un
.fabric_evt
);
463 lpfc_free_fast_evt(phba
, fast_evt_data
);
466 } else if (evt_category
== FC_REG_SCSI_EVENT
) {
467 switch (evt_sub_category
) {
468 case LPFC_EVENT_QFULL
:
469 case LPFC_EVENT_DEVBSY
:
470 evt_data
= (char *) &fast_evt_data
->un
.scsi_evt
;
471 evt_data_size
= sizeof(fast_evt_data
->un
.scsi_evt
);
473 case LPFC_EVENT_CHECK_COND
:
474 evt_data
= (char *) &fast_evt_data
->un
.check_cond_evt
;
475 evt_data_size
= sizeof(fast_evt_data
->un
.
478 case LPFC_EVENT_VARQUEDEPTH
:
479 evt_data
= (char *) &fast_evt_data
->un
.queue_depth_evt
;
480 evt_data_size
= sizeof(fast_evt_data
->un
.
484 lpfc_free_fast_evt(phba
, fast_evt_data
);
488 lpfc_free_fast_evt(phba
, fast_evt_data
);
492 fc_host_post_vendor_event(shost
,
493 fc_get_event_number(),
498 lpfc_free_fast_evt(phba
, fast_evt_data
);
503 lpfc_work_list_done(struct lpfc_hba
*phba
)
505 struct lpfc_work_evt
*evtp
= NULL
;
506 struct lpfc_nodelist
*ndlp
;
511 spin_lock_irq(&phba
->hbalock
);
512 while (!list_empty(&phba
->work_list
)) {
513 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
515 spin_unlock_irq(&phba
->hbalock
);
518 case LPFC_EVT_ELS_RETRY
:
519 ndlp
= (struct lpfc_nodelist
*) (evtp
->evt_arg1
);
520 lpfc_els_retry_delay_handler(ndlp
);
521 free_evt
= 0; /* evt is part of ndlp */
522 /* decrement the node reference count held
523 * for this queued work
527 case LPFC_EVT_DEV_LOSS
:
528 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
529 fcf_inuse
= lpfc_dev_loss_tmo_handler(ndlp
);
531 /* decrement the node reference count held for
534 nlp_did
= ndlp
->nlp_DID
;
536 if (phba
->sli_rev
== LPFC_SLI_REV4
)
537 lpfc_sli4_post_dev_loss_tmo_handler(phba
,
541 case LPFC_EVT_ONLINE
:
542 if (phba
->link_state
< LPFC_LINK_DOWN
)
543 *(int *) (evtp
->evt_arg1
) = lpfc_online(phba
);
545 *(int *) (evtp
->evt_arg1
) = 0;
546 complete((struct completion
*)(evtp
->evt_arg2
));
548 case LPFC_EVT_OFFLINE_PREP
:
549 if (phba
->link_state
>= LPFC_LINK_DOWN
)
550 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
551 *(int *)(evtp
->evt_arg1
) = 0;
552 complete((struct completion
*)(evtp
->evt_arg2
));
554 case LPFC_EVT_OFFLINE
:
556 lpfc_sli_brdrestart(phba
);
557 *(int *)(evtp
->evt_arg1
) =
558 lpfc_sli_brdready(phba
, HS_FFRDY
| HS_MBRDY
);
559 lpfc_unblock_mgmt_io(phba
);
560 complete((struct completion
*)(evtp
->evt_arg2
));
562 case LPFC_EVT_WARM_START
:
564 lpfc_reset_barrier(phba
);
565 lpfc_sli_brdreset(phba
);
566 lpfc_hba_down_post(phba
);
567 *(int *)(evtp
->evt_arg1
) =
568 lpfc_sli_brdready(phba
, HS_MBRDY
);
569 lpfc_unblock_mgmt_io(phba
);
570 complete((struct completion
*)(evtp
->evt_arg2
));
574 *(int *)(evtp
->evt_arg1
)
575 = (phba
->pport
->stopped
)
576 ? 0 : lpfc_sli_brdkill(phba
);
577 lpfc_unblock_mgmt_io(phba
);
578 complete((struct completion
*)(evtp
->evt_arg2
));
580 case LPFC_EVT_FASTPATH_MGMT_EVT
:
581 lpfc_send_fastpath_evt(phba
, evtp
);
584 case LPFC_EVT_RESET_HBA
:
585 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
586 lpfc_reset_hba(phba
);
591 spin_lock_irq(&phba
->hbalock
);
593 spin_unlock_irq(&phba
->hbalock
);
598 lpfc_work_done(struct lpfc_hba
*phba
)
600 struct lpfc_sli_ring
*pring
;
601 uint32_t ha_copy
, status
, control
, work_port_events
;
602 struct lpfc_vport
**vports
;
603 struct lpfc_vport
*vport
;
606 spin_lock_irq(&phba
->hbalock
);
607 ha_copy
= phba
->work_ha
;
609 spin_unlock_irq(&phba
->hbalock
);
611 /* First, try to post the next mailbox command to SLI4 device */
612 if (phba
->pci_dev_grp
== LPFC_PCI_DEV_OC
)
613 lpfc_sli4_post_async_mbox(phba
);
615 if (ha_copy
& HA_ERATT
)
616 /* Handle the error attention event */
617 lpfc_handle_eratt(phba
);
619 if (ha_copy
& HA_MBATT
)
620 lpfc_sli_handle_mb_event(phba
);
622 if (ha_copy
& HA_LATT
)
623 lpfc_handle_latt(phba
);
625 /* Process SLI4 events */
626 if (phba
->pci_dev_grp
== LPFC_PCI_DEV_OC
) {
627 if (phba
->hba_flag
& HBA_RRQ_ACTIVE
)
628 lpfc_handle_rrq_active(phba
);
629 if (phba
->hba_flag
& FCP_XRI_ABORT_EVENT
)
630 lpfc_sli4_fcp_xri_abort_event_proc(phba
);
631 if (phba
->hba_flag
& ELS_XRI_ABORT_EVENT
)
632 lpfc_sli4_els_xri_abort_event_proc(phba
);
633 if (phba
->hba_flag
& ASYNC_EVENT
)
634 lpfc_sli4_async_event_proc(phba
);
635 if (phba
->hba_flag
& HBA_POST_RECEIVE_BUFFER
) {
636 spin_lock_irq(&phba
->hbalock
);
637 phba
->hba_flag
&= ~HBA_POST_RECEIVE_BUFFER
;
638 spin_unlock_irq(&phba
->hbalock
);
639 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
641 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
)
642 lpfc_sli4_fcf_redisc_event_proc(phba
);
645 vports
= lpfc_create_vport_work_array(phba
);
647 for (i
= 0; i
<= phba
->max_vports
; i
++) {
649 * We could have no vports in array if unloading, so if
650 * this happens then just use the pport
652 if (vports
[i
] == NULL
&& i
== 0)
658 spin_lock_irq(&vport
->work_port_lock
);
659 work_port_events
= vport
->work_port_events
;
660 vport
->work_port_events
&= ~work_port_events
;
661 spin_unlock_irq(&vport
->work_port_lock
);
662 if (work_port_events
& WORKER_DISC_TMO
)
663 lpfc_disc_timeout_handler(vport
);
664 if (work_port_events
& WORKER_ELS_TMO
)
665 lpfc_els_timeout_handler(vport
);
666 if (work_port_events
& WORKER_HB_TMO
)
667 lpfc_hb_timeout_handler(phba
);
668 if (work_port_events
& WORKER_MBOX_TMO
)
669 lpfc_mbox_timeout_handler(phba
);
670 if (work_port_events
& WORKER_FABRIC_BLOCK_TMO
)
671 lpfc_unblock_fabric_iocbs(phba
);
672 if (work_port_events
& WORKER_FDMI_TMO
)
673 lpfc_fdmi_timeout_handler(vport
);
674 if (work_port_events
& WORKER_RAMP_DOWN_QUEUE
)
675 lpfc_ramp_down_queue_handler(phba
);
676 if (work_port_events
& WORKER_RAMP_UP_QUEUE
)
677 lpfc_ramp_up_queue_handler(phba
);
678 if (work_port_events
& WORKER_DELAYED_DISC_TMO
)
679 lpfc_delayed_disc_timeout_handler(vport
);
681 lpfc_destroy_vport_work_array(phba
, vports
);
683 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
684 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
685 status
>>= (4*LPFC_ELS_RING
);
686 if ((status
& HA_RXMASK
) ||
687 (pring
->flag
& LPFC_DEFERRED_RING_EVENT
) ||
688 (phba
->hba_flag
& HBA_SP_QUEUE_EVT
)) {
689 if (pring
->flag
& LPFC_STOP_IOCB_EVENT
) {
690 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
691 /* Set the lpfc data pending flag */
692 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
694 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
695 lpfc_sli_handle_slow_ring_event(phba
, pring
,
699 if ((phba
->sli_rev
== LPFC_SLI_REV4
) && pring
->txq_cnt
)
700 lpfc_drain_txq(phba
);
702 * Turn on Ring interrupts
704 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
705 spin_lock_irq(&phba
->hbalock
);
706 control
= readl(phba
->HCregaddr
);
707 if (!(control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
))) {
708 lpfc_debugfs_slow_ring_trc(phba
,
709 "WRK Enable ring: cntl:x%x hacopy:x%x",
710 control
, ha_copy
, 0);
712 control
|= (HC_R0INT_ENA
<< LPFC_ELS_RING
);
713 writel(control
, phba
->HCregaddr
);
714 readl(phba
->HCregaddr
); /* flush */
716 lpfc_debugfs_slow_ring_trc(phba
,
717 "WRK Ring ok: cntl:x%x hacopy:x%x",
718 control
, ha_copy
, 0);
720 spin_unlock_irq(&phba
->hbalock
);
723 lpfc_work_list_done(phba
);
727 lpfc_do_work(void *p
)
729 struct lpfc_hba
*phba
= p
;
732 set_user_nice(current
, -20);
733 current
->flags
|= PF_NOFREEZE
;
734 phba
->data_flags
= 0;
736 while (!kthread_should_stop()) {
737 /* wait and check worker queue activities */
738 rc
= wait_event_interruptible(phba
->work_waitq
,
739 (test_and_clear_bit(LPFC_DATA_READY
,
741 || kthread_should_stop()));
742 /* Signal wakeup shall terminate the worker thread */
744 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
745 "0433 Wakeup on signal: rc=x%x\n", rc
);
749 /* Attend pending lpfc data processing */
750 lpfc_work_done(phba
);
752 phba
->worker_thread
= NULL
;
753 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
754 "0432 Worker thread stopped.\n");
759 * This is only called to handle FC worker events. Since this a rare
760 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
761 * embedding it in the IOCB.
764 lpfc_workq_post_event(struct lpfc_hba
*phba
, void *arg1
, void *arg2
,
767 struct lpfc_work_evt
*evtp
;
771 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
772 * be queued to worker thread for processing
774 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_ATOMIC
);
778 evtp
->evt_arg1
= arg1
;
779 evtp
->evt_arg2
= arg2
;
782 spin_lock_irqsave(&phba
->hbalock
, flags
);
783 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
784 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
786 lpfc_worker_wake_up(phba
);
792 lpfc_cleanup_rpis(struct lpfc_vport
*vport
, int remove
)
794 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
795 struct lpfc_hba
*phba
= vport
->phba
;
796 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
799 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
800 if (!NLP_CHK_NODE_ACT(ndlp
))
802 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
804 if ((phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) ||
805 ((vport
->port_type
== LPFC_NPIV_PORT
) &&
806 (ndlp
->nlp_DID
== NameServer_DID
)))
807 lpfc_unreg_rpi(vport
, ndlp
);
809 /* Leave Fabric nodes alone on link down */
810 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
811 (!remove
&& ndlp
->nlp_type
& NLP_FABRIC
))
813 rc
= lpfc_disc_state_machine(vport
, ndlp
, NULL
,
816 : NLP_EVT_DEVICE_RECOVERY
);
818 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) {
819 if (phba
->sli_rev
== LPFC_SLI_REV4
)
820 lpfc_sli4_unreg_all_rpis(vport
);
821 lpfc_mbx_unreg_vpi(vport
);
822 spin_lock_irq(shost
->host_lock
);
823 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
824 spin_unlock_irq(shost
->host_lock
);
829 lpfc_port_link_failure(struct lpfc_vport
*vport
)
831 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
833 /* Cleanup any outstanding received buffers */
834 lpfc_cleanup_rcv_buffers(vport
);
836 /* Cleanup any outstanding RSCN activity */
837 lpfc_els_flush_rscn(vport
);
839 /* Cleanup any outstanding ELS commands */
840 lpfc_els_flush_cmd(vport
);
842 lpfc_cleanup_rpis(vport
, 0);
844 /* Turn off discovery timer if its running */
845 lpfc_can_disctmo(vport
);
849 lpfc_linkdown_port(struct lpfc_vport
*vport
)
851 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
853 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKDOWN
, 0);
855 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
856 "Link Down: state:x%x rtry:x%x flg:x%x",
857 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
859 lpfc_port_link_failure(vport
);
861 /* Stop delayed Nport discovery */
862 spin_lock_irq(shost
->host_lock
);
863 vport
->fc_flag
&= ~FC_DISC_DELAYED
;
864 spin_unlock_irq(shost
->host_lock
);
865 del_timer_sync(&vport
->delayed_disc_tmo
);
869 lpfc_linkdown(struct lpfc_hba
*phba
)
871 struct lpfc_vport
*vport
= phba
->pport
;
872 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
873 struct lpfc_vport
**vports
;
877 if (phba
->link_state
== LPFC_LINK_DOWN
)
880 /* Block all SCSI stack I/Os */
881 lpfc_scsi_dev_block(phba
);
883 spin_lock_irq(&phba
->hbalock
);
884 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
885 spin_unlock_irq(&phba
->hbalock
);
886 if (phba
->link_state
> LPFC_LINK_DOWN
) {
887 phba
->link_state
= LPFC_LINK_DOWN
;
888 spin_lock_irq(shost
->host_lock
);
889 phba
->pport
->fc_flag
&= ~FC_LBIT
;
890 spin_unlock_irq(shost
->host_lock
);
892 vports
= lpfc_create_vport_work_array(phba
);
894 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
895 /* Issue a LINK DOWN event to all nodes */
896 lpfc_linkdown_port(vports
[i
]);
898 lpfc_destroy_vport_work_array(phba
, vports
);
899 /* Clean up any firmware default rpi's */
900 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
902 lpfc_unreg_did(phba
, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS
, mb
);
904 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
905 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
906 == MBX_NOT_FINISHED
) {
907 mempool_free(mb
, phba
->mbox_mem_pool
);
911 /* Setup myDID for link up if we are in pt2pt mode */
912 if (phba
->pport
->fc_flag
& FC_PT2PT
) {
913 phba
->pport
->fc_myDID
= 0;
914 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
916 lpfc_config_link(phba
, mb
);
917 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
919 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
920 == MBX_NOT_FINISHED
) {
921 mempool_free(mb
, phba
->mbox_mem_pool
);
924 spin_lock_irq(shost
->host_lock
);
925 phba
->pport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
926 spin_unlock_irq(shost
->host_lock
);
933 lpfc_linkup_cleanup_nodes(struct lpfc_vport
*vport
)
935 struct lpfc_nodelist
*ndlp
;
937 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
938 if (!NLP_CHK_NODE_ACT(ndlp
))
940 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
942 if (ndlp
->nlp_type
& NLP_FABRIC
) {
943 /* On Linkup its safe to clean up the ndlp
944 * from Fabric connections.
946 if (ndlp
->nlp_DID
!= Fabric_DID
)
947 lpfc_unreg_rpi(vport
, ndlp
);
948 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
949 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
950 /* Fail outstanding IO now since device is
953 lpfc_unreg_rpi(vport
, ndlp
);
959 lpfc_linkup_port(struct lpfc_vport
*vport
)
961 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
962 struct lpfc_hba
*phba
= vport
->phba
;
964 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
967 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
968 "Link Up: top:x%x speed:x%x flg:x%x",
969 phba
->fc_topology
, phba
->fc_linkspeed
, phba
->link_flag
);
971 /* If NPIV is not enabled, only bring the physical port up */
972 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
973 (vport
!= phba
->pport
))
976 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKUP
, 0);
978 spin_lock_irq(shost
->host_lock
);
979 vport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
980 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
981 vport
->fc_flag
|= FC_NDISC_ACTIVE
;
982 vport
->fc_ns_retry
= 0;
983 spin_unlock_irq(shost
->host_lock
);
985 if (vport
->fc_flag
& FC_LBIT
)
986 lpfc_linkup_cleanup_nodes(vport
);
991 lpfc_linkup(struct lpfc_hba
*phba
)
993 struct lpfc_vport
**vports
;
996 lpfc_cleanup_wt_rrqs(phba
);
997 phba
->link_state
= LPFC_LINK_UP
;
999 /* Unblock fabric iocbs if they are blocked */
1000 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
1001 del_timer_sync(&phba
->fabric_block_timer
);
1003 vports
= lpfc_create_vport_work_array(phba
);
1005 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1006 lpfc_linkup_port(vports
[i
]);
1007 lpfc_destroy_vport_work_array(phba
, vports
);
1008 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
1009 (phba
->sli_rev
< LPFC_SLI_REV4
))
1010 lpfc_issue_clear_la(phba
, phba
->pport
);
1016 * This routine handles processing a CLEAR_LA mailbox
1017 * command upon completion. It is setup in the LPFC_MBOXQ
1018 * as the completion routine when the command is
1019 * handed off to the SLI layer.
1022 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1024 struct lpfc_vport
*vport
= pmb
->vport
;
1025 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1026 struct lpfc_sli
*psli
= &phba
->sli
;
1027 MAILBOX_t
*mb
= &pmb
->u
.mb
;
1030 /* Since we don't do discovery right now, turn these off here */
1031 psli
->ring
[psli
->extra_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1032 psli
->ring
[psli
->fcp_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1033 psli
->ring
[psli
->next_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1035 /* Check for error */
1036 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
1037 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1038 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1039 "0320 CLEAR_LA mbxStatus error x%x hba "
1041 mb
->mbxStatus
, vport
->port_state
);
1042 phba
->link_state
= LPFC_HBA_ERROR
;
1046 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
1047 phba
->link_state
= LPFC_HBA_READY
;
1049 spin_lock_irq(&phba
->hbalock
);
1050 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1051 control
= readl(phba
->HCregaddr
);
1052 control
|= HC_LAINT_ENA
;
1053 writel(control
, phba
->HCregaddr
);
1054 readl(phba
->HCregaddr
); /* flush */
1055 spin_unlock_irq(&phba
->hbalock
);
1056 mempool_free(pmb
, phba
->mbox_mem_pool
);
1060 /* Device Discovery completes */
1061 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1062 "0225 Device Discovery completes\n");
1063 mempool_free(pmb
, phba
->mbox_mem_pool
);
1065 spin_lock_irq(shost
->host_lock
);
1066 vport
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
1067 spin_unlock_irq(shost
->host_lock
);
1069 lpfc_can_disctmo(vport
);
1071 /* turn on Link Attention interrupts */
1073 spin_lock_irq(&phba
->hbalock
);
1074 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1075 control
= readl(phba
->HCregaddr
);
1076 control
|= HC_LAINT_ENA
;
1077 writel(control
, phba
->HCregaddr
);
1078 readl(phba
->HCregaddr
); /* flush */
1079 spin_unlock_irq(&phba
->hbalock
);
1086 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1088 struct lpfc_vport
*vport
= pmb
->vport
;
1090 if (pmb
->u
.mb
.mbxStatus
)
1093 mempool_free(pmb
, phba
->mbox_mem_pool
);
1095 /* don't perform discovery for SLI4 loopback diagnostic test */
1096 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1097 !(phba
->hba_flag
& HBA_FCOE_MODE
) &&
1098 (phba
->link_flag
& LS_LOOPBACK_MODE
))
1101 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
&&
1102 vport
->fc_flag
& FC_PUBLIC_LOOP
&&
1103 !(vport
->fc_flag
& FC_LBIT
)) {
1104 /* Need to wait for FAN - use discovery timer
1105 * for timeout. port_state is identically
1106 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1108 lpfc_set_disctmo(vport
);
1112 /* Start discovery by sending a FLOGI. port_state is identically
1113 * LPFC_FLOGI while waiting for FLOGI cmpl
1115 if (vport
->port_state
!= LPFC_FLOGI
|| vport
->fc_flag
& FC_PT2PT_PLOGI
)
1116 lpfc_initial_flogi(vport
);
1120 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1121 "0306 CONFIG_LINK mbxStatus error x%x "
1123 pmb
->u
.mb
.mbxStatus
, vport
->port_state
);
1124 mempool_free(pmb
, phba
->mbox_mem_pool
);
1126 lpfc_linkdown(phba
);
1128 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
1129 "0200 CONFIG_LINK bad hba state x%x\n",
1132 lpfc_issue_clear_la(phba
, vport
);
1137 * lpfc_sli4_clear_fcf_rr_bmask
1138 * @phba pointer to the struct lpfc_hba for this port.
1139 * This fucnction resets the round robin bit mask and clears the
1140 * fcf priority list. The list deletions are done while holding the
1141 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1142 * from the lpfc_fcf_pri record.
1145 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba
*phba
)
1147 struct lpfc_fcf_pri
*fcf_pri
;
1148 struct lpfc_fcf_pri
*next_fcf_pri
;
1149 memset(phba
->fcf
.fcf_rr_bmask
, 0, sizeof(*phba
->fcf
.fcf_rr_bmask
));
1150 spin_lock_irq(&phba
->hbalock
);
1151 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
1152 &phba
->fcf
.fcf_pri_list
, list
) {
1153 list_del_init(&fcf_pri
->list
);
1154 fcf_pri
->fcf_rec
.flag
= 0;
1156 spin_unlock_irq(&phba
->hbalock
);
1159 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
1161 struct lpfc_vport
*vport
= mboxq
->vport
;
1163 if (mboxq
->u
.mb
.mbxStatus
) {
1164 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1165 "2017 REG_FCFI mbxStatus error x%x "
1167 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
1171 /* Start FCoE discovery by sending a FLOGI. */
1172 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
, &mboxq
->u
.mqe
.un
.reg_fcfi
);
1173 /* Set the FCFI registered flag */
1174 spin_lock_irq(&phba
->hbalock
);
1175 phba
->fcf
.fcf_flag
|= FCF_REGISTERED
;
1176 spin_unlock_irq(&phba
->hbalock
);
1178 /* If there is a pending FCoE event, restart FCF table scan. */
1179 if ((!(phba
->hba_flag
& FCF_RR_INPROG
)) &&
1180 lpfc_check_pending_fcoe_event(phba
, LPFC_UNREG_FCF
))
1183 /* Mark successful completion of FCF table scan */
1184 spin_lock_irq(&phba
->hbalock
);
1185 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1186 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1187 if (vport
->port_state
!= LPFC_FLOGI
) {
1188 phba
->hba_flag
|= FCF_RR_INPROG
;
1189 spin_unlock_irq(&phba
->hbalock
);
1190 lpfc_issue_init_vfi(vport
);
1193 spin_unlock_irq(&phba
->hbalock
);
1197 spin_lock_irq(&phba
->hbalock
);
1198 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1199 spin_unlock_irq(&phba
->hbalock
);
1201 mempool_free(mboxq
, phba
->mbox_mem_pool
);
1205 * lpfc_fab_name_match - Check if the fcf fabric name match.
1206 * @fab_name: pointer to fabric name.
1207 * @new_fcf_record: pointer to fcf record.
1209 * This routine compare the fcf record's fabric name with provided
1210 * fabric name. If the fabric name are identical this function
1211 * returns 1 else return 0.
1214 lpfc_fab_name_match(uint8_t *fab_name
, struct fcf_record
*new_fcf_record
)
1216 if (fab_name
[0] != bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
))
1218 if (fab_name
[1] != bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
))
1220 if (fab_name
[2] != bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
))
1222 if (fab_name
[3] != bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
))
1224 if (fab_name
[4] != bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
))
1226 if (fab_name
[5] != bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
))
1228 if (fab_name
[6] != bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
))
1230 if (fab_name
[7] != bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
))
1236 * lpfc_sw_name_match - Check if the fcf switch name match.
1237 * @fab_name: pointer to fabric name.
1238 * @new_fcf_record: pointer to fcf record.
1240 * This routine compare the fcf record's switch name with provided
1241 * switch name. If the switch name are identical this function
1242 * returns 1 else return 0.
1245 lpfc_sw_name_match(uint8_t *sw_name
, struct fcf_record
*new_fcf_record
)
1247 if (sw_name
[0] != bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
))
1249 if (sw_name
[1] != bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
))
1251 if (sw_name
[2] != bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
))
1253 if (sw_name
[3] != bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
))
1255 if (sw_name
[4] != bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
))
1257 if (sw_name
[5] != bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
))
1259 if (sw_name
[6] != bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
))
1261 if (sw_name
[7] != bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
))
1267 * lpfc_mac_addr_match - Check if the fcf mac address match.
1268 * @mac_addr: pointer to mac address.
1269 * @new_fcf_record: pointer to fcf record.
1271 * This routine compare the fcf record's mac address with HBA's
1272 * FCF mac address. If the mac addresses are identical this function
1273 * returns 1 else return 0.
1276 lpfc_mac_addr_match(uint8_t *mac_addr
, struct fcf_record
*new_fcf_record
)
1278 if (mac_addr
[0] != bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
))
1280 if (mac_addr
[1] != bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
))
1282 if (mac_addr
[2] != bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
))
1284 if (mac_addr
[3] != bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
))
1286 if (mac_addr
[4] != bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
))
1288 if (mac_addr
[5] != bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
))
1294 lpfc_vlan_id_match(uint16_t curr_vlan_id
, uint16_t new_vlan_id
)
1296 return (curr_vlan_id
== new_vlan_id
);
1300 * lpfc_update_fcf_record - Update driver fcf record
1301 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1302 * @phba: pointer to lpfc hba data structure.
1303 * @fcf_index: Index for the lpfc_fcf_record.
1304 * @new_fcf_record: pointer to hba fcf record.
1306 * This routine updates the driver FCF priority record from the new HBA FCF
1307 * record. This routine is called with the host lock held.
1310 __lpfc_update_fcf_record_pri(struct lpfc_hba
*phba
, uint16_t fcf_index
,
1311 struct fcf_record
*new_fcf_record
1314 struct lpfc_fcf_pri
*fcf_pri
;
1316 fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
1317 fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
1318 /* FCF record priority */
1319 fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
1324 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1325 * @fcf: pointer to driver fcf record.
1326 * @new_fcf_record: pointer to fcf record.
1328 * This routine copies the FCF information from the FCF
1329 * record to lpfc_hba data structure.
1332 lpfc_copy_fcf_record(struct lpfc_fcf_rec
*fcf_rec
,
1333 struct fcf_record
*new_fcf_record
)
1336 fcf_rec
->fabric_name
[0] =
1337 bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
);
1338 fcf_rec
->fabric_name
[1] =
1339 bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
);
1340 fcf_rec
->fabric_name
[2] =
1341 bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
);
1342 fcf_rec
->fabric_name
[3] =
1343 bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
);
1344 fcf_rec
->fabric_name
[4] =
1345 bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
);
1346 fcf_rec
->fabric_name
[5] =
1347 bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
);
1348 fcf_rec
->fabric_name
[6] =
1349 bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
);
1350 fcf_rec
->fabric_name
[7] =
1351 bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
);
1353 fcf_rec
->mac_addr
[0] = bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
);
1354 fcf_rec
->mac_addr
[1] = bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
);
1355 fcf_rec
->mac_addr
[2] = bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
);
1356 fcf_rec
->mac_addr
[3] = bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
);
1357 fcf_rec
->mac_addr
[4] = bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
);
1358 fcf_rec
->mac_addr
[5] = bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
);
1359 /* FCF record index */
1360 fcf_rec
->fcf_indx
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
1361 /* FCF record priority */
1362 fcf_rec
->priority
= new_fcf_record
->fip_priority
;
1364 fcf_rec
->switch_name
[0] =
1365 bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
);
1366 fcf_rec
->switch_name
[1] =
1367 bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
);
1368 fcf_rec
->switch_name
[2] =
1369 bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
);
1370 fcf_rec
->switch_name
[3] =
1371 bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
);
1372 fcf_rec
->switch_name
[4] =
1373 bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
);
1374 fcf_rec
->switch_name
[5] =
1375 bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
);
1376 fcf_rec
->switch_name
[6] =
1377 bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
);
1378 fcf_rec
->switch_name
[7] =
1379 bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
);
1383 * lpfc_update_fcf_record - Update driver fcf record
1384 * @phba: pointer to lpfc hba data structure.
1385 * @fcf_rec: pointer to driver fcf record.
1386 * @new_fcf_record: pointer to hba fcf record.
1387 * @addr_mode: address mode to be set to the driver fcf record.
1388 * @vlan_id: vlan tag to be set to the driver fcf record.
1389 * @flag: flag bits to be set to the driver fcf record.
1391 * This routine updates the driver FCF record from the new HBA FCF record
1392 * together with the address mode, vlan_id, and other informations. This
1393 * routine is called with the host lock held.
1396 __lpfc_update_fcf_record(struct lpfc_hba
*phba
, struct lpfc_fcf_rec
*fcf_rec
,
1397 struct fcf_record
*new_fcf_record
, uint32_t addr_mode
,
1398 uint16_t vlan_id
, uint32_t flag
)
1400 /* Copy the fields from the HBA's FCF record */
1401 lpfc_copy_fcf_record(fcf_rec
, new_fcf_record
);
1402 /* Update other fields of driver FCF record */
1403 fcf_rec
->addr_mode
= addr_mode
;
1404 fcf_rec
->vlan_id
= vlan_id
;
1405 fcf_rec
->flag
|= (flag
| RECORD_VALID
);
1406 __lpfc_update_fcf_record_pri(phba
,
1407 bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
),
1412 * lpfc_register_fcf - Register the FCF with hba.
1413 * @phba: pointer to lpfc hba data structure.
1415 * This routine issues a register fcfi mailbox command to register
1419 lpfc_register_fcf(struct lpfc_hba
*phba
)
1421 LPFC_MBOXQ_t
*fcf_mbxq
;
1424 spin_lock_irq(&phba
->hbalock
);
1425 /* If the FCF is not available do nothing. */
1426 if (!(phba
->fcf
.fcf_flag
& FCF_AVAILABLE
)) {
1427 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1428 spin_unlock_irq(&phba
->hbalock
);
1432 /* The FCF is already registered, start discovery */
1433 if (phba
->fcf
.fcf_flag
& FCF_REGISTERED
) {
1434 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1435 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1436 if (phba
->pport
->port_state
!= LPFC_FLOGI
) {
1437 phba
->hba_flag
|= FCF_RR_INPROG
;
1438 spin_unlock_irq(&phba
->hbalock
);
1439 lpfc_initial_flogi(phba
->pport
);
1442 spin_unlock_irq(&phba
->hbalock
);
1445 spin_unlock_irq(&phba
->hbalock
);
1447 fcf_mbxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1449 spin_lock_irq(&phba
->hbalock
);
1450 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1451 spin_unlock_irq(&phba
->hbalock
);
1455 lpfc_reg_fcfi(phba
, fcf_mbxq
);
1456 fcf_mbxq
->vport
= phba
->pport
;
1457 fcf_mbxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_fcfi
;
1458 rc
= lpfc_sli_issue_mbox(phba
, fcf_mbxq
, MBX_NOWAIT
);
1459 if (rc
== MBX_NOT_FINISHED
) {
1460 spin_lock_irq(&phba
->hbalock
);
1461 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1462 spin_unlock_irq(&phba
->hbalock
);
1463 mempool_free(fcf_mbxq
, phba
->mbox_mem_pool
);
1470 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1471 * @phba: pointer to lpfc hba data structure.
1472 * @new_fcf_record: pointer to fcf record.
1473 * @boot_flag: Indicates if this record used by boot bios.
1474 * @addr_mode: The address mode to be used by this FCF
1475 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1477 * This routine compare the fcf record with connect list obtained from the
1478 * config region to decide if this FCF can be used for SAN discovery. It returns
1479 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1480 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1481 * is used by boot bios and addr_mode will indicate the addressing mode to be
1482 * used for this FCF when the function returns.
1483 * If the FCF record need to be used with a particular vlan id, the vlan is
1484 * set in the vlan_id on return of the function. If not VLAN tagging need to
1485 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1488 lpfc_match_fcf_conn_list(struct lpfc_hba
*phba
,
1489 struct fcf_record
*new_fcf_record
,
1490 uint32_t *boot_flag
, uint32_t *addr_mode
,
1493 struct lpfc_fcf_conn_entry
*conn_entry
;
1494 int i
, j
, fcf_vlan_id
= 0;
1496 /* Find the lowest VLAN id in the FCF record */
1497 for (i
= 0; i
< 512; i
++) {
1498 if (new_fcf_record
->vlan_bitmap
[i
]) {
1499 fcf_vlan_id
= i
* 8;
1501 while (!((new_fcf_record
->vlan_bitmap
[i
] >> j
) & 1)) {
1509 /* If FCF not available return 0 */
1510 if (!bf_get(lpfc_fcf_record_fcf_avail
, new_fcf_record
) ||
1511 !bf_get(lpfc_fcf_record_fcf_valid
, new_fcf_record
))
1514 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
1516 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1518 if (phba
->valid_vlan
)
1519 *vlan_id
= phba
->vlan_id
;
1521 *vlan_id
= LPFC_FCOE_NULL_VID
;
1526 * If there are no FCF connection table entry, driver connect to all
1529 if (list_empty(&phba
->fcf_conn_rec_list
)) {
1531 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1535 * When there are no FCF connect entries, use driver's default
1536 * addressing mode - FPMA.
1538 if (*addr_mode
& LPFC_FCF_FPMA
)
1539 *addr_mode
= LPFC_FCF_FPMA
;
1541 /* If FCF record report a vlan id use that vlan id */
1543 *vlan_id
= fcf_vlan_id
;
1545 *vlan_id
= LPFC_FCOE_NULL_VID
;
1549 list_for_each_entry(conn_entry
,
1550 &phba
->fcf_conn_rec_list
, list
) {
1551 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_VALID
))
1554 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_FBNM_VALID
) &&
1555 !lpfc_fab_name_match(conn_entry
->conn_rec
.fabric_name
,
1558 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_SWNM_VALID
) &&
1559 !lpfc_sw_name_match(conn_entry
->conn_rec
.switch_name
,
1562 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
) {
1564 * If the vlan bit map does not have the bit set for the
1565 * vlan id to be used, then it is not a match.
1567 if (!(new_fcf_record
->vlan_bitmap
1568 [conn_entry
->conn_rec
.vlan_tag
/ 8] &
1569 (1 << (conn_entry
->conn_rec
.vlan_tag
% 8))))
1574 * If connection record does not support any addressing mode,
1575 * skip the FCF record.
1577 if (!(bf_get(lpfc_fcf_record_mac_addr_prov
, new_fcf_record
)
1578 & (LPFC_FCF_FPMA
| LPFC_FCF_SPMA
)))
1582 * Check if the connection record specifies a required
1585 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1586 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)) {
1589 * If SPMA required but FCF not support this continue.
1591 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1592 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1593 new_fcf_record
) & LPFC_FCF_SPMA
))
1597 * If FPMA required but FCF not support this continue.
1599 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1600 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1601 new_fcf_record
) & LPFC_FCF_FPMA
))
1606 * This fcf record matches filtering criteria.
1608 if (conn_entry
->conn_rec
.flags
& FCFCNCT_BOOT
)
1614 * If user did not specify any addressing mode, or if the
1615 * preferred addressing mode specified by user is not supported
1616 * by FCF, allow fabric to pick the addressing mode.
1618 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1621 * If the user specified a required address mode, assign that
1624 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1625 (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)))
1626 *addr_mode
= (conn_entry
->conn_rec
.flags
&
1628 LPFC_FCF_SPMA
: LPFC_FCF_FPMA
;
1630 * If the user specified a preferred address mode, use the
1631 * addr mode only if FCF support the addr_mode.
1633 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1634 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1635 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1636 (*addr_mode
& LPFC_FCF_SPMA
))
1637 *addr_mode
= LPFC_FCF_SPMA
;
1638 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1639 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1640 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1641 (*addr_mode
& LPFC_FCF_FPMA
))
1642 *addr_mode
= LPFC_FCF_FPMA
;
1644 /* If matching connect list has a vlan id, use it */
1645 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
)
1646 *vlan_id
= conn_entry
->conn_rec
.vlan_tag
;
1648 * If no vlan id is specified in connect list, use the vlan id
1651 else if (fcf_vlan_id
)
1652 *vlan_id
= fcf_vlan_id
;
1654 *vlan_id
= LPFC_FCOE_NULL_VID
;
1663 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1664 * @phba: pointer to lpfc hba data structure.
1665 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1667 * This function check if there is any fcoe event pending while driver
1668 * scan FCF entries. If there is any pending event, it will restart the
1669 * FCF saning and return 1 else return 0.
1672 lpfc_check_pending_fcoe_event(struct lpfc_hba
*phba
, uint8_t unreg_fcf
)
1675 * If the Link is up and no FCoE events while in the
1676 * FCF discovery, no need to restart FCF discovery.
1678 if ((phba
->link_state
>= LPFC_LINK_UP
) &&
1679 (phba
->fcoe_eventtag
== phba
->fcoe_eventtag_at_fcf_scan
))
1682 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1683 "2768 Pending link or FCF event during current "
1684 "handling of the previous event: link_state:x%x, "
1685 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1686 phba
->link_state
, phba
->fcoe_eventtag_at_fcf_scan
,
1687 phba
->fcoe_eventtag
);
1689 spin_lock_irq(&phba
->hbalock
);
1690 phba
->fcf
.fcf_flag
&= ~FCF_AVAILABLE
;
1691 spin_unlock_irq(&phba
->hbalock
);
1693 if (phba
->link_state
>= LPFC_LINK_UP
) {
1694 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1695 "2780 Restart FCF table scan due to "
1696 "pending FCF event:evt_tag_at_scan:x%x, "
1697 "evt_tag_current:x%x\n",
1698 phba
->fcoe_eventtag_at_fcf_scan
,
1699 phba
->fcoe_eventtag
);
1700 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
1703 * Do not continue FCF discovery and clear FCF_TS_INPROG
1706 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1707 "2833 Stop FCF discovery process due to link "
1708 "state change (x%x)\n", phba
->link_state
);
1709 spin_lock_irq(&phba
->hbalock
);
1710 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1711 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_FOV
| FCF_DISCOVERY
);
1712 spin_unlock_irq(&phba
->hbalock
);
1715 /* Unregister the currently registered FCF if required */
1717 spin_lock_irq(&phba
->hbalock
);
1718 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
1719 spin_unlock_irq(&phba
->hbalock
);
1720 lpfc_sli4_unregister_fcf(phba
);
1726 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1727 * @phba: pointer to lpfc hba data structure.
1728 * @fcf_cnt: number of eligible fcf record seen so far.
1730 * This function makes an running random selection decision on FCF record to
1731 * use through a sequence of @fcf_cnt eligible FCF records with equal
1732 * probability. To perform integer manunipulation of random numbers with
1733 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1734 * from random32() are taken as the random random number generated.
1736 * Returns true when outcome is for the newly read FCF record should be
1737 * chosen; otherwise, return false when outcome is for keeping the previously
1738 * chosen FCF record.
1741 lpfc_sli4_new_fcf_random_select(struct lpfc_hba
*phba
, uint32_t fcf_cnt
)
1745 /* Get 16-bit uniform random number */
1746 rand_num
= (0xFFFF & random32());
1748 /* Decision with probability 1/fcf_cnt */
1749 if ((fcf_cnt
* rand_num
) < 0xFFFF)
1756 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1757 * @phba: pointer to lpfc hba data structure.
1758 * @mboxq: pointer to mailbox object.
1759 * @next_fcf_index: pointer to holder of next fcf index.
1761 * This routine parses the non-embedded fcf mailbox command by performing the
1762 * necessarily error checking, non-embedded read FCF record mailbox command
1763 * SGE parsing, and endianness swapping.
1765 * Returns the pointer to the new FCF record in the non-embedded mailbox
1766 * command DMA memory if successfully, other NULL.
1768 static struct fcf_record
*
1769 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
1770 uint16_t *next_fcf_index
)
1773 dma_addr_t phys_addr
;
1774 struct lpfc_mbx_sge sge
;
1775 struct lpfc_mbx_read_fcf_tbl
*read_fcf
;
1776 uint32_t shdr_status
, shdr_add_status
;
1777 union lpfc_sli4_cfg_shdr
*shdr
;
1778 struct fcf_record
*new_fcf_record
;
1780 /* Get the first SGE entry from the non-embedded DMA memory. This
1781 * routine only uses a single SGE.
1783 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
1784 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
1785 if (unlikely(!mboxq
->sge_array
)) {
1786 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1787 "2524 Failed to get the non-embedded SGE "
1788 "virtual address\n");
1791 virt_addr
= mboxq
->sge_array
->addr
[0];
1793 shdr
= (union lpfc_sli4_cfg_shdr
*)virt_addr
;
1794 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
1795 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
1796 if (shdr_status
|| shdr_add_status
) {
1797 if (shdr_status
== STATUS_FCF_TABLE_EMPTY
)
1798 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1799 "2726 READ_FCF_RECORD Indicates empty "
1802 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1803 "2521 READ_FCF_RECORD mailbox failed "
1804 "with status x%x add_status x%x, "
1805 "mbx\n", shdr_status
, shdr_add_status
);
1809 /* Interpreting the returned information of the FCF record */
1810 read_fcf
= (struct lpfc_mbx_read_fcf_tbl
*)virt_addr
;
1811 lpfc_sli_pcimem_bcopy(read_fcf
, read_fcf
,
1812 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1813 *next_fcf_index
= bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx
, read_fcf
);
1814 new_fcf_record
= (struct fcf_record
*)(virt_addr
+
1815 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1816 lpfc_sli_pcimem_bcopy(new_fcf_record
, new_fcf_record
,
1817 offsetof(struct fcf_record
, vlan_bitmap
));
1818 new_fcf_record
->word137
= le32_to_cpu(new_fcf_record
->word137
);
1819 new_fcf_record
->word138
= le32_to_cpu(new_fcf_record
->word138
);
1821 return new_fcf_record
;
1825 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1826 * @phba: pointer to lpfc hba data structure.
1827 * @fcf_record: pointer to the fcf record.
1828 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1829 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1831 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1835 lpfc_sli4_log_fcf_record_info(struct lpfc_hba
*phba
,
1836 struct fcf_record
*fcf_record
,
1838 uint16_t next_fcf_index
)
1840 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1841 "2764 READ_FCF_RECORD:\n"
1842 "\tFCF_Index : x%x\n"
1843 "\tFCF_Avail : x%x\n"
1844 "\tFCF_Valid : x%x\n"
1845 "\tFIP_Priority : x%x\n"
1846 "\tMAC_Provider : x%x\n"
1847 "\tLowest VLANID : x%x\n"
1848 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1849 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1850 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1851 "\tNext_FCF_Index: x%x\n",
1852 bf_get(lpfc_fcf_record_fcf_index
, fcf_record
),
1853 bf_get(lpfc_fcf_record_fcf_avail
, fcf_record
),
1854 bf_get(lpfc_fcf_record_fcf_valid
, fcf_record
),
1855 fcf_record
->fip_priority
,
1856 bf_get(lpfc_fcf_record_mac_addr_prov
, fcf_record
),
1858 bf_get(lpfc_fcf_record_mac_0
, fcf_record
),
1859 bf_get(lpfc_fcf_record_mac_1
, fcf_record
),
1860 bf_get(lpfc_fcf_record_mac_2
, fcf_record
),
1861 bf_get(lpfc_fcf_record_mac_3
, fcf_record
),
1862 bf_get(lpfc_fcf_record_mac_4
, fcf_record
),
1863 bf_get(lpfc_fcf_record_mac_5
, fcf_record
),
1864 bf_get(lpfc_fcf_record_fab_name_0
, fcf_record
),
1865 bf_get(lpfc_fcf_record_fab_name_1
, fcf_record
),
1866 bf_get(lpfc_fcf_record_fab_name_2
, fcf_record
),
1867 bf_get(lpfc_fcf_record_fab_name_3
, fcf_record
),
1868 bf_get(lpfc_fcf_record_fab_name_4
, fcf_record
),
1869 bf_get(lpfc_fcf_record_fab_name_5
, fcf_record
),
1870 bf_get(lpfc_fcf_record_fab_name_6
, fcf_record
),
1871 bf_get(lpfc_fcf_record_fab_name_7
, fcf_record
),
1872 bf_get(lpfc_fcf_record_switch_name_0
, fcf_record
),
1873 bf_get(lpfc_fcf_record_switch_name_1
, fcf_record
),
1874 bf_get(lpfc_fcf_record_switch_name_2
, fcf_record
),
1875 bf_get(lpfc_fcf_record_switch_name_3
, fcf_record
),
1876 bf_get(lpfc_fcf_record_switch_name_4
, fcf_record
),
1877 bf_get(lpfc_fcf_record_switch_name_5
, fcf_record
),
1878 bf_get(lpfc_fcf_record_switch_name_6
, fcf_record
),
1879 bf_get(lpfc_fcf_record_switch_name_7
, fcf_record
),
1884 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1885 * @phba: pointer to lpfc hba data structure.
1886 * @fcf_rec: pointer to an existing FCF record.
1887 * @new_fcf_record: pointer to a new FCF record.
1888 * @new_vlan_id: vlan id from the new FCF record.
1890 * This function performs matching test of a new FCF record against an existing
1891 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1892 * will not be used as part of the FCF record matching criteria.
1894 * Returns true if all the fields matching, otherwise returns false.
1897 lpfc_sli4_fcf_record_match(struct lpfc_hba
*phba
,
1898 struct lpfc_fcf_rec
*fcf_rec
,
1899 struct fcf_record
*new_fcf_record
,
1900 uint16_t new_vlan_id
)
1902 if (new_vlan_id
!= LPFC_FCOE_IGNORE_VID
)
1903 if (!lpfc_vlan_id_match(fcf_rec
->vlan_id
, new_vlan_id
))
1905 if (!lpfc_mac_addr_match(fcf_rec
->mac_addr
, new_fcf_record
))
1907 if (!lpfc_sw_name_match(fcf_rec
->switch_name
, new_fcf_record
))
1909 if (!lpfc_fab_name_match(fcf_rec
->fabric_name
, new_fcf_record
))
1911 if (fcf_rec
->priority
!= new_fcf_record
->fip_priority
)
1917 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1918 * @vport: Pointer to vport object.
1919 * @fcf_index: index to next fcf.
1921 * This function processing the roundrobin fcf failover to next fcf index.
1922 * When this function is invoked, there will be a current fcf registered
1924 * Return: 0 for continue retrying flogi on currently registered fcf;
1925 * 1 for stop flogi on currently registered fcf;
1927 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport
*vport
, uint16_t fcf_index
)
1929 struct lpfc_hba
*phba
= vport
->phba
;
1932 if (fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
) {
1933 spin_lock_irq(&phba
->hbalock
);
1934 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
1935 spin_unlock_irq(&phba
->hbalock
);
1936 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1937 "2872 Devloss tmo with no eligible "
1938 "FCF, unregister in-use FCF (x%x) "
1939 "and rescan FCF table\n",
1940 phba
->fcf
.current_rec
.fcf_indx
);
1941 lpfc_unregister_fcf_rescan(phba
);
1942 goto stop_flogi_current_fcf
;
1944 /* Mark the end to FLOGI roundrobin failover */
1945 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1946 /* Allow action to new fcf asynchronous event */
1947 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
1948 spin_unlock_irq(&phba
->hbalock
);
1949 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1950 "2865 No FCF available, stop roundrobin FCF "
1951 "failover and change port state:x%x/x%x\n",
1952 phba
->pport
->port_state
, LPFC_VPORT_UNKNOWN
);
1953 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
1954 goto stop_flogi_current_fcf
;
1956 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_ELS
,
1957 "2794 Try FLOGI roundrobin FCF failover to "
1958 "(x%x)\n", fcf_index
);
1959 rc
= lpfc_sli4_fcf_rr_read_fcf_rec(phba
, fcf_index
);
1961 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
1962 "2761 FLOGI roundrobin FCF failover "
1963 "failed (rc:x%x) to read FCF (x%x)\n",
1964 rc
, phba
->fcf
.current_rec
.fcf_indx
);
1966 goto stop_flogi_current_fcf
;
1970 stop_flogi_current_fcf
:
1971 lpfc_can_disctmo(vport
);
1976 * lpfc_sli4_fcf_pri_list_del
1977 * @phba: pointer to lpfc hba data structure.
1978 * @fcf_index the index of the fcf record to delete
1979 * This routine checks the on list flag of the fcf_index to be deleted.
1980 * If it is one the list then it is removed from the list, and the flag
1981 * is cleared. This routine grab the hbalock before removing the fcf
1982 * record from the list.
1984 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba
*phba
,
1987 struct lpfc_fcf_pri
*new_fcf_pri
;
1989 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
1990 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1991 "3058 deleting idx x%x pri x%x flg x%x\n",
1992 fcf_index
, new_fcf_pri
->fcf_rec
.priority
,
1993 new_fcf_pri
->fcf_rec
.flag
);
1994 spin_lock_irq(&phba
->hbalock
);
1995 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
) {
1996 if (phba
->fcf
.current_rec
.priority
==
1997 new_fcf_pri
->fcf_rec
.priority
)
1998 phba
->fcf
.eligible_fcf_cnt
--;
1999 list_del_init(&new_fcf_pri
->list
);
2000 new_fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_ON_PRI_LIST
;
2002 spin_unlock_irq(&phba
->hbalock
);
2006 * lpfc_sli4_set_fcf_flogi_fail
2007 * @phba: pointer to lpfc hba data structure.
2008 * @fcf_index the index of the fcf record to update
2009 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2010 * flag so the the round robin slection for the particular priority level
2011 * will try a different fcf record that does not have this bit set.
2012 * If the fcf record is re-read for any reason this flag is cleared brfore
2013 * adding it to the priority list.
2016 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba
*phba
, uint16_t fcf_index
)
2018 struct lpfc_fcf_pri
*new_fcf_pri
;
2019 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2020 spin_lock_irq(&phba
->hbalock
);
2021 new_fcf_pri
->fcf_rec
.flag
|= LPFC_FCF_FLOGI_FAILED
;
2022 spin_unlock_irq(&phba
->hbalock
);
2026 * lpfc_sli4_fcf_pri_list_add
2027 * @phba: pointer to lpfc hba data structure.
2028 * @fcf_index the index of the fcf record to add
2029 * This routine checks the priority of the fcf_index to be added.
2030 * If it is a lower priority than the current head of the fcf_pri list
2031 * then it is added to the list in the right order.
2032 * If it is the same priority as the current head of the list then it
2033 * is added to the head of the list and its bit in the rr_bmask is set.
2034 * If the fcf_index to be added is of a higher priority than the current
2035 * head of the list then the rr_bmask is cleared, its bit is set in the
2036 * rr_bmask and it is added to the head of the list.
2038 * 0=success 1=failure
2040 int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba
*phba
, uint16_t fcf_index
,
2041 struct fcf_record
*new_fcf_record
)
2043 uint16_t current_fcf_pri
;
2044 uint16_t last_index
;
2045 struct lpfc_fcf_pri
*fcf_pri
;
2046 struct lpfc_fcf_pri
*next_fcf_pri
;
2047 struct lpfc_fcf_pri
*new_fcf_pri
;
2050 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2051 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2052 "3059 adding idx x%x pri x%x flg x%x\n",
2053 fcf_index
, new_fcf_record
->fip_priority
,
2054 new_fcf_pri
->fcf_rec
.flag
);
2055 spin_lock_irq(&phba
->hbalock
);
2056 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
)
2057 list_del_init(&new_fcf_pri
->list
);
2058 new_fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
2059 new_fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
2060 if (list_empty(&phba
->fcf
.fcf_pri_list
)) {
2061 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2062 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2063 new_fcf_pri
->fcf_rec
.fcf_index
);
2067 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
2068 LPFC_SLI4_FCF_TBL_INDX_MAX
);
2069 if (last_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
2070 ret
= 0; /* Empty rr list */
2073 current_fcf_pri
= phba
->fcf
.fcf_pri
[last_index
].fcf_rec
.priority
;
2074 if (new_fcf_pri
->fcf_rec
.priority
<= current_fcf_pri
) {
2075 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2076 if (new_fcf_pri
->fcf_rec
.priority
< current_fcf_pri
) {
2077 memset(phba
->fcf
.fcf_rr_bmask
, 0,
2078 sizeof(*phba
->fcf
.fcf_rr_bmask
));
2079 /* fcfs_at_this_priority_level = 1; */
2080 phba
->fcf
.eligible_fcf_cnt
= 1;
2082 /* fcfs_at_this_priority_level++; */
2083 phba
->fcf
.eligible_fcf_cnt
++;
2084 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2085 new_fcf_pri
->fcf_rec
.fcf_index
);
2089 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
2090 &phba
->fcf
.fcf_pri_list
, list
) {
2091 if (new_fcf_pri
->fcf_rec
.priority
<=
2092 fcf_pri
->fcf_rec
.priority
) {
2093 if (fcf_pri
->list
.prev
== &phba
->fcf
.fcf_pri_list
)
2094 list_add(&new_fcf_pri
->list
,
2095 &phba
->fcf
.fcf_pri_list
);
2097 list_add(&new_fcf_pri
->list
,
2098 &((struct lpfc_fcf_pri
*)
2099 fcf_pri
->list
.prev
)->list
);
2102 } else if (fcf_pri
->list
.next
== &phba
->fcf
.fcf_pri_list
2103 || new_fcf_pri
->fcf_rec
.priority
<
2104 next_fcf_pri
->fcf_rec
.priority
) {
2105 list_add(&new_fcf_pri
->list
, &fcf_pri
->list
);
2109 if (new_fcf_pri
->fcf_rec
.priority
> fcf_pri
->fcf_rec
.priority
)
2115 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2116 new_fcf_pri
->fcf_rec
.flag
= LPFC_FCF_ON_PRI_LIST
;
2117 spin_unlock_irq(&phba
->hbalock
);
2122 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2123 * @phba: pointer to lpfc hba data structure.
2124 * @mboxq: pointer to mailbox object.
2126 * This function iterates through all the fcf records available in
2127 * HBA and chooses the optimal FCF record for discovery. After finding
2128 * the FCF for discovery it registers the FCF record and kicks start
2130 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2131 * use an FCF record which matches fabric name and mac address of the
2132 * currently used FCF record.
2133 * If the driver supports only one FCF, it will try to use the FCF record
2134 * used by BOOT_BIOS.
2137 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2139 struct fcf_record
*new_fcf_record
;
2140 uint32_t boot_flag
, addr_mode
;
2141 uint16_t fcf_index
, next_fcf_index
;
2142 struct lpfc_fcf_rec
*fcf_rec
= NULL
;
2145 bool select_new_fcf
;
2148 /* If there is pending FCoE event restart FCF table scan */
2149 if (lpfc_check_pending_fcoe_event(phba
, LPFC_SKIP_UNREG_FCF
)) {
2150 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2154 /* Parse the FCF record from the non-embedded mailbox command */
2155 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2157 if (!new_fcf_record
) {
2158 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2159 "2765 Mailbox command READ_FCF_RECORD "
2160 "failed to retrieve a FCF record.\n");
2161 /* Let next new FCF event trigger fast failover */
2162 spin_lock_irq(&phba
->hbalock
);
2163 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2164 spin_unlock_irq(&phba
->hbalock
);
2165 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2169 /* Check the FCF record against the connection list */
2170 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2171 &addr_mode
, &vlan_id
);
2173 /* Log the FCF record information if turned on */
2174 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2178 * If the fcf record does not match with connect list entries
2179 * read the next entry; otherwise, this is an eligible FCF
2180 * record for roundrobin FCF failover.
2183 lpfc_sli4_fcf_pri_list_del(phba
,
2184 bf_get(lpfc_fcf_record_fcf_index
,
2186 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2187 "2781 FCF (x%x) failed connection "
2188 "list check: (x%x/x%x)\n",
2189 bf_get(lpfc_fcf_record_fcf_index
,
2191 bf_get(lpfc_fcf_record_fcf_avail
,
2193 bf_get(lpfc_fcf_record_fcf_valid
,
2195 if ((phba
->fcf
.fcf_flag
& FCF_IN_USE
) &&
2196 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2197 new_fcf_record
, LPFC_FCOE_IGNORE_VID
)) {
2198 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) !=
2199 phba
->fcf
.current_rec
.fcf_indx
) {
2200 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2201 "2862 FCF (x%x) matches property "
2202 "of in-use FCF (x%x)\n",
2203 bf_get(lpfc_fcf_record_fcf_index
,
2205 phba
->fcf
.current_rec
.fcf_indx
);
2209 * In case the current in-use FCF record becomes
2210 * invalid/unavailable during FCF discovery that
2211 * was not triggered by fast FCF failover process,
2212 * treat it as fast FCF failover.
2214 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
) &&
2215 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2216 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2217 "2835 Invalid in-use FCF "
2218 "(x%x), enter FCF failover "
2220 phba
->fcf
.current_rec
.fcf_indx
);
2221 spin_lock_irq(&phba
->hbalock
);
2222 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2223 spin_unlock_irq(&phba
->hbalock
);
2224 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2225 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2226 LPFC_FCOE_FCF_GET_FIRST
);
2232 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2233 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
,
2240 * If this is not the first FCF discovery of the HBA, use last
2241 * FCF record for the discovery. The condition that a rescan
2242 * matches the in-use FCF record: fabric name, switch name, mac
2243 * address, and vlan_id.
2245 spin_lock_irq(&phba
->hbalock
);
2246 if (phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2247 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2248 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2249 new_fcf_record
, vlan_id
)) {
2250 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) ==
2251 phba
->fcf
.current_rec
.fcf_indx
) {
2252 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2253 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)
2254 /* Stop FCF redisc wait timer */
2255 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2257 else if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2258 /* Fast failover, mark completed */
2259 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2260 spin_unlock_irq(&phba
->hbalock
);
2261 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2262 "2836 New FCF matches in-use "
2264 phba
->fcf
.current_rec
.fcf_indx
);
2267 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2268 "2863 New FCF (x%x) matches "
2269 "property of in-use FCF (x%x)\n",
2270 bf_get(lpfc_fcf_record_fcf_index
,
2272 phba
->fcf
.current_rec
.fcf_indx
);
2275 * Read next FCF record from HBA searching for the matching
2276 * with in-use record only if not during the fast failover
2277 * period. In case of fast failover period, it shall try to
2278 * determine whether the FCF record just read should be the
2281 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2282 spin_unlock_irq(&phba
->hbalock
);
2287 * Update on failover FCF record only if it's in FCF fast-failover
2288 * period; otherwise, update on current FCF record.
2290 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2291 fcf_rec
= &phba
->fcf
.failover_rec
;
2293 fcf_rec
= &phba
->fcf
.current_rec
;
2295 if (phba
->fcf
.fcf_flag
& FCF_AVAILABLE
) {
2297 * If the driver FCF record does not have boot flag
2298 * set and new hba fcf record has boot flag set, use
2299 * the new hba fcf record.
2301 if (boot_flag
&& !(fcf_rec
->flag
& BOOT_ENABLE
)) {
2302 /* Choose this FCF record */
2303 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2304 "2837 Update current FCF record "
2305 "(x%x) with new FCF record (x%x)\n",
2307 bf_get(lpfc_fcf_record_fcf_index
,
2309 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2310 addr_mode
, vlan_id
, BOOT_ENABLE
);
2311 spin_unlock_irq(&phba
->hbalock
);
2315 * If the driver FCF record has boot flag set and the
2316 * new hba FCF record does not have boot flag, read
2317 * the next FCF record.
2319 if (!boot_flag
&& (fcf_rec
->flag
& BOOT_ENABLE
)) {
2320 spin_unlock_irq(&phba
->hbalock
);
2324 * If the new hba FCF record has lower priority value
2325 * than the driver FCF record, use the new record.
2327 if (new_fcf_record
->fip_priority
< fcf_rec
->priority
) {
2328 /* Choose the new FCF record with lower priority */
2329 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2330 "2838 Update current FCF record "
2331 "(x%x) with new FCF record (x%x)\n",
2333 bf_get(lpfc_fcf_record_fcf_index
,
2335 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2336 addr_mode
, vlan_id
, 0);
2337 /* Reset running random FCF selection count */
2338 phba
->fcf
.eligible_fcf_cnt
= 1;
2339 } else if (new_fcf_record
->fip_priority
== fcf_rec
->priority
) {
2340 /* Update running random FCF selection count */
2341 phba
->fcf
.eligible_fcf_cnt
++;
2342 select_new_fcf
= lpfc_sli4_new_fcf_random_select(phba
,
2343 phba
->fcf
.eligible_fcf_cnt
);
2344 if (select_new_fcf
) {
2345 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2346 "2839 Update current FCF record "
2347 "(x%x) with new FCF record (x%x)\n",
2349 bf_get(lpfc_fcf_record_fcf_index
,
2351 /* Choose the new FCF by random selection */
2352 __lpfc_update_fcf_record(phba
, fcf_rec
,
2354 addr_mode
, vlan_id
, 0);
2357 spin_unlock_irq(&phba
->hbalock
);
2361 * This is the first suitable FCF record, choose this record for
2362 * initial best-fit FCF.
2365 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2366 "2840 Update initial FCF candidate "
2368 bf_get(lpfc_fcf_record_fcf_index
,
2370 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2371 addr_mode
, vlan_id
, (boot_flag
?
2373 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2374 /* Setup initial running random FCF selection count */
2375 phba
->fcf
.eligible_fcf_cnt
= 1;
2376 /* Seeding the random number generator for random selection */
2377 seed
= (uint32_t)(0xFFFFFFFF & jiffies
);
2380 spin_unlock_irq(&phba
->hbalock
);
2384 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2385 if (next_fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
|| next_fcf_index
== 0) {
2386 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
) {
2388 * Case of FCF fast failover scan
2392 * It has not found any suitable FCF record, cancel
2393 * FCF scan inprogress, and do nothing
2395 if (!(phba
->fcf
.failover_rec
.flag
& RECORD_VALID
)) {
2396 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2397 "2782 No suitable FCF found: "
2399 phba
->fcoe_eventtag_at_fcf_scan
,
2400 bf_get(lpfc_fcf_record_fcf_index
,
2402 spin_lock_irq(&phba
->hbalock
);
2403 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
2404 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2405 spin_unlock_irq(&phba
->hbalock
);
2406 /* Unregister in-use FCF and rescan */
2407 lpfc_printf_log(phba
, KERN_INFO
,
2409 "2864 On devloss tmo "
2410 "unreg in-use FCF and "
2411 "rescan FCF table\n");
2412 lpfc_unregister_fcf_rescan(phba
);
2416 * Let next new FCF event trigger fast failover
2418 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2419 spin_unlock_irq(&phba
->hbalock
);
2423 * It has found a suitable FCF record that is not
2424 * the same as in-use FCF record, unregister the
2425 * in-use FCF record, replace the in-use FCF record
2426 * with the new FCF record, mark FCF fast failover
2427 * completed, and then start register the new FCF
2431 /* Unregister the current in-use FCF record */
2432 lpfc_unregister_fcf(phba
);
2434 /* Replace in-use record with the new record */
2435 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2436 "2842 Replace in-use FCF (x%x) "
2437 "with failover FCF (x%x)\n",
2438 phba
->fcf
.current_rec
.fcf_indx
,
2439 phba
->fcf
.failover_rec
.fcf_indx
);
2440 memcpy(&phba
->fcf
.current_rec
,
2441 &phba
->fcf
.failover_rec
,
2442 sizeof(struct lpfc_fcf_rec
));
2444 * Mark the fast FCF failover rediscovery completed
2445 * and the start of the first round of the roundrobin
2448 spin_lock_irq(&phba
->hbalock
);
2449 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2450 spin_unlock_irq(&phba
->hbalock
);
2451 /* Register to the new FCF record */
2452 lpfc_register_fcf(phba
);
2455 * In case of transaction period to fast FCF failover,
2456 * do nothing when search to the end of the FCF table.
2458 if ((phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) ||
2459 (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
))
2462 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2463 phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2465 * In case the current in-use FCF record no
2466 * longer existed during FCF discovery that
2467 * was not triggered by fast FCF failover
2468 * process, treat it as fast FCF failover.
2470 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2471 "2841 In-use FCF record (x%x) "
2472 "not reported, entering fast "
2473 "FCF failover mode scanning.\n",
2474 phba
->fcf
.current_rec
.fcf_indx
);
2475 spin_lock_irq(&phba
->hbalock
);
2476 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2477 spin_unlock_irq(&phba
->hbalock
);
2478 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2479 LPFC_FCOE_FCF_GET_FIRST
);
2482 /* Register to the new FCF record */
2483 lpfc_register_fcf(phba
);
2486 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, next_fcf_index
);
2490 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2491 lpfc_register_fcf(phba
);
2497 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2498 * @phba: pointer to lpfc hba data structure.
2499 * @mboxq: pointer to mailbox object.
2501 * This is the callback function for FLOGI failure roundrobin FCF failover
2502 * read FCF record mailbox command from the eligible FCF record bmask for
2503 * performing the failover. If the FCF read back is not valid/available, it
2504 * fails through to retrying FLOGI to the currently registered FCF again.
2505 * Otherwise, if the FCF read back is valid and available, it will set the
2506 * newly read FCF record to the failover FCF record, unregister currently
2507 * registered FCF record, copy the failover FCF record to the current
2508 * FCF record, and then register the current FCF record before proceeding
2509 * to trying FLOGI on the new failover FCF.
2512 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2514 struct fcf_record
*new_fcf_record
;
2515 uint32_t boot_flag
, addr_mode
;
2516 uint16_t next_fcf_index
, fcf_index
;
2517 uint16_t current_fcf_index
;
2521 /* If link state is not up, stop the roundrobin failover process */
2522 if (phba
->link_state
< LPFC_LINK_UP
) {
2523 spin_lock_irq(&phba
->hbalock
);
2524 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
2525 phba
->hba_flag
&= ~FCF_RR_INPROG
;
2526 spin_unlock_irq(&phba
->hbalock
);
2530 /* Parse the FCF record from the non-embedded mailbox command */
2531 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2533 if (!new_fcf_record
) {
2534 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2535 "2766 Mailbox command READ_FCF_RECORD "
2536 "failed to retrieve a FCF record.\n");
2540 /* Get the needed parameters from FCF record */
2541 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2542 &addr_mode
, &vlan_id
);
2544 /* Log the FCF record information if turned on */
2545 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2548 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2550 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2551 "2848 Remove ineligible FCF (x%x) from "
2552 "from roundrobin bmask\n", fcf_index
);
2553 /* Clear roundrobin bmask bit for ineligible FCF */
2554 lpfc_sli4_fcf_rr_index_clear(phba
, fcf_index
);
2555 /* Perform next round of roundrobin FCF failover */
2556 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
2557 rc
= lpfc_sli4_fcf_rr_next_proc(phba
->pport
, fcf_index
);
2563 if (fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
2564 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2565 "2760 Perform FLOGI roundrobin FCF failover: "
2566 "FCF (x%x) back to FCF (x%x)\n",
2567 phba
->fcf
.current_rec
.fcf_indx
, fcf_index
);
2568 /* Wait 500 ms before retrying FLOGI to current FCF */
2570 lpfc_issue_init_vfi(phba
->pport
);
2574 /* Upload new FCF record to the failover FCF record */
2575 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2576 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2577 phba
->fcf
.failover_rec
.fcf_indx
, fcf_index
);
2578 spin_lock_irq(&phba
->hbalock
);
2579 __lpfc_update_fcf_record(phba
, &phba
->fcf
.failover_rec
,
2580 new_fcf_record
, addr_mode
, vlan_id
,
2581 (boot_flag
? BOOT_ENABLE
: 0));
2582 spin_unlock_irq(&phba
->hbalock
);
2584 current_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
2586 /* Unregister the current in-use FCF record */
2587 lpfc_unregister_fcf(phba
);
2589 /* Replace in-use record with the new record */
2590 memcpy(&phba
->fcf
.current_rec
, &phba
->fcf
.failover_rec
,
2591 sizeof(struct lpfc_fcf_rec
));
2593 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2594 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2595 "(x%x) to FCF (x%x)\n", current_fcf_index
, fcf_index
);
2598 lpfc_register_fcf(phba
);
2600 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2604 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2605 * @phba: pointer to lpfc hba data structure.
2606 * @mboxq: pointer to mailbox object.
2608 * This is the callback function of read FCF record mailbox command for
2609 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2610 * failover when a new FCF event happened. If the FCF read back is
2611 * valid/available and it passes the connection list check, it updates
2612 * the bmask for the eligible FCF record for roundrobin failover.
2615 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2617 struct fcf_record
*new_fcf_record
;
2618 uint32_t boot_flag
, addr_mode
;
2619 uint16_t fcf_index
, next_fcf_index
;
2623 /* If link state is not up, no need to proceed */
2624 if (phba
->link_state
< LPFC_LINK_UP
)
2627 /* If FCF discovery period is over, no need to proceed */
2628 if (!(phba
->fcf
.fcf_flag
& FCF_DISCOVERY
))
2631 /* Parse the FCF record from the non-embedded mailbox command */
2632 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2634 if (!new_fcf_record
) {
2635 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2636 "2767 Mailbox command READ_FCF_RECORD "
2637 "failed to retrieve a FCF record.\n");
2641 /* Check the connection list for eligibility */
2642 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2643 &addr_mode
, &vlan_id
);
2645 /* Log the FCF record information if turned on */
2646 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2652 /* Update the eligible FCF record index bmask */
2653 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2655 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
, new_fcf_record
);
2658 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2662 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2663 * @phba: pointer to lpfc hba data structure.
2664 * @mboxq: pointer to mailbox data structure.
2666 * This function handles completion of init vfi mailbox command.
2669 lpfc_init_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2671 struct lpfc_vport
*vport
= mboxq
->vport
;
2674 * VFI not supported on interface type 0, just do the flogi
2675 * Also continue if the VFI is in use - just use the same one.
2677 if (mboxq
->u
.mb
.mbxStatus
&&
2678 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2679 LPFC_SLI_INTF_IF_TYPE_0
) &&
2680 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2681 lpfc_printf_vlog(vport
, KERN_ERR
,
2683 "2891 Init VFI mailbox failed 0x%x\n",
2684 mboxq
->u
.mb
.mbxStatus
);
2685 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2686 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2690 lpfc_initial_flogi(vport
);
2691 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2696 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2697 * @vport: pointer to lpfc_vport data structure.
2699 * This function issue a init_vfi mailbox command to initialize the VFI and
2700 * VPI for the physical port.
2703 lpfc_issue_init_vfi(struct lpfc_vport
*vport
)
2705 LPFC_MBOXQ_t
*mboxq
;
2707 struct lpfc_hba
*phba
= vport
->phba
;
2709 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2711 lpfc_printf_vlog(vport
, KERN_ERR
,
2712 LOG_MBOX
, "2892 Failed to allocate "
2713 "init_vfi mailbox\n");
2716 lpfc_init_vfi(mboxq
, vport
);
2717 mboxq
->mbox_cmpl
= lpfc_init_vfi_cmpl
;
2718 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
2719 if (rc
== MBX_NOT_FINISHED
) {
2720 lpfc_printf_vlog(vport
, KERN_ERR
,
2721 LOG_MBOX
, "2893 Failed to issue init_vfi mailbox\n");
2722 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2727 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2728 * @phba: pointer to lpfc hba data structure.
2729 * @mboxq: pointer to mailbox data structure.
2731 * This function handles completion of init vpi mailbox command.
2734 lpfc_init_vpi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2736 struct lpfc_vport
*vport
= mboxq
->vport
;
2737 struct lpfc_nodelist
*ndlp
;
2738 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2740 if (mboxq
->u
.mb
.mbxStatus
) {
2741 lpfc_printf_vlog(vport
, KERN_ERR
,
2743 "2609 Init VPI mailbox failed 0x%x\n",
2744 mboxq
->u
.mb
.mbxStatus
);
2745 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2746 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2749 spin_lock_irq(shost
->host_lock
);
2750 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2751 spin_unlock_irq(shost
->host_lock
);
2753 /* If this port is physical port or FDISC is done, do reg_vpi */
2754 if ((phba
->pport
== vport
) || (vport
->port_state
== LPFC_FDISC
)) {
2755 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
2757 lpfc_printf_vlog(vport
, KERN_ERR
,
2759 "2731 Cannot find fabric "
2760 "controller node\n");
2762 lpfc_register_new_vport(phba
, vport
, ndlp
);
2763 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2767 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2768 lpfc_initial_fdisc(vport
);
2770 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
2771 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2772 "2606 No NPIV Fabric support\n");
2774 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2779 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2780 * @vport: pointer to lpfc_vport data structure.
2782 * This function issue a init_vpi mailbox command to initialize
2783 * VPI for the vport.
2786 lpfc_issue_init_vpi(struct lpfc_vport
*vport
)
2788 LPFC_MBOXQ_t
*mboxq
;
2791 mboxq
= mempool_alloc(vport
->phba
->mbox_mem_pool
, GFP_KERNEL
);
2793 lpfc_printf_vlog(vport
, KERN_ERR
,
2794 LOG_MBOX
, "2607 Failed to allocate "
2795 "init_vpi mailbox\n");
2798 lpfc_init_vpi(vport
->phba
, mboxq
, vport
->vpi
);
2799 mboxq
->vport
= vport
;
2800 mboxq
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
2801 rc
= lpfc_sli_issue_mbox(vport
->phba
, mboxq
, MBX_NOWAIT
);
2802 if (rc
== MBX_NOT_FINISHED
) {
2803 lpfc_printf_vlog(vport
, KERN_ERR
,
2804 LOG_MBOX
, "2608 Failed to issue init_vpi mailbox\n");
2805 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2810 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2811 * @phba: pointer to lpfc hba data structure.
2813 * This function loops through the list of vports on the @phba and issues an
2814 * FDISC if possible.
2817 lpfc_start_fdiscs(struct lpfc_hba
*phba
)
2819 struct lpfc_vport
**vports
;
2822 vports
= lpfc_create_vport_work_array(phba
);
2823 if (vports
!= NULL
) {
2824 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2825 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
2827 /* There are no vpi for this vport */
2828 if (vports
[i
]->vpi
> phba
->max_vpi
) {
2829 lpfc_vport_set_state(vports
[i
],
2833 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2834 lpfc_vport_set_state(vports
[i
],
2838 if (vports
[i
]->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
) {
2839 lpfc_issue_init_vpi(vports
[i
]);
2842 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2843 lpfc_initial_fdisc(vports
[i
]);
2845 lpfc_vport_set_state(vports
[i
],
2846 FC_VPORT_NO_FABRIC_SUPP
);
2847 lpfc_printf_vlog(vports
[i
], KERN_ERR
,
2850 "Fabric support\n");
2854 lpfc_destroy_vport_work_array(phba
, vports
);
2858 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2860 struct lpfc_dmabuf
*dmabuf
= mboxq
->context1
;
2861 struct lpfc_vport
*vport
= mboxq
->vport
;
2862 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2865 * VFI not supported for interface type 0, so ignore any mailbox
2866 * error (except VFI in use) and continue with the discovery.
2868 if (mboxq
->u
.mb
.mbxStatus
&&
2869 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2870 LPFC_SLI_INTF_IF_TYPE_0
) &&
2871 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2872 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
2873 "2018 REG_VFI mbxStatus error x%x "
2875 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
2876 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2877 /* FLOGI failed, use loop map to make discovery list */
2878 lpfc_disc_list_loopmap(vport
);
2879 /* Start discovery */
2880 lpfc_disc_start(vport
);
2883 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2886 /* The VPI is implicitly registered when the VFI is registered */
2887 spin_lock_irq(shost
->host_lock
);
2888 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2889 vport
->fc_flag
|= FC_VFI_REGISTERED
;
2890 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2891 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2892 spin_unlock_irq(shost
->host_lock
);
2894 /* In case SLI4 FC loopback test, we are ready */
2895 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
2896 (phba
->link_flag
& LS_LOOPBACK_MODE
)) {
2897 phba
->link_state
= LPFC_HBA_READY
;
2901 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
2903 * For private loop or for NPort pt2pt,
2904 * just start discovery and we are done.
2906 if ((vport
->fc_flag
& FC_PT2PT
) ||
2907 ((phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) &&
2908 !(vport
->fc_flag
& FC_PUBLIC_LOOP
))) {
2910 /* Use loop map to make discovery list */
2911 lpfc_disc_list_loopmap(vport
);
2912 /* Start discovery */
2913 lpfc_disc_start(vport
);
2915 lpfc_start_fdiscs(phba
);
2916 lpfc_do_scr_ns_plogi(phba
, vport
);
2921 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2922 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
2928 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2930 MAILBOX_t
*mb
= &pmb
->u
.mb
;
2931 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
2932 struct lpfc_vport
*vport
= pmb
->vport
;
2935 /* Check for error */
2936 if (mb
->mbxStatus
) {
2937 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
2938 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
2939 "0319 READ_SPARAM mbxStatus error x%x "
2941 mb
->mbxStatus
, vport
->port_state
);
2942 lpfc_linkdown(phba
);
2946 memcpy((uint8_t *) &vport
->fc_sparam
, (uint8_t *) mp
->virt
,
2947 sizeof (struct serv_parm
));
2948 lpfc_update_vport_wwn(vport
);
2949 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
2950 memcpy(&phba
->wwnn
, &vport
->fc_nodename
, sizeof(phba
->wwnn
));
2951 memcpy(&phba
->wwpn
, &vport
->fc_portname
, sizeof(phba
->wwnn
));
2954 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2956 mempool_free(pmb
, phba
->mbox_mem_pool
);
2960 pmb
->context1
= NULL
;
2961 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2963 lpfc_issue_clear_la(phba
, vport
);
2964 mempool_free(pmb
, phba
->mbox_mem_pool
);
2969 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, struct lpfc_mbx_read_top
*la
)
2971 struct lpfc_vport
*vport
= phba
->pport
;
2972 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
= NULL
;
2973 struct Scsi_Host
*shost
;
2975 struct lpfc_dmabuf
*mp
;
2977 struct fcf_record
*fcf_record
;
2979 spin_lock_irq(&phba
->hbalock
);
2980 switch (bf_get(lpfc_mbx_read_top_link_spd
, la
)) {
2981 case LPFC_LINK_SPEED_1GHZ
:
2982 case LPFC_LINK_SPEED_2GHZ
:
2983 case LPFC_LINK_SPEED_4GHZ
:
2984 case LPFC_LINK_SPEED_8GHZ
:
2985 case LPFC_LINK_SPEED_10GHZ
:
2986 case LPFC_LINK_SPEED_16GHZ
:
2987 phba
->fc_linkspeed
= bf_get(lpfc_mbx_read_top_link_spd
, la
);
2990 phba
->fc_linkspeed
= LPFC_LINK_SPEED_UNKNOWN
;
2994 phba
->fc_topology
= bf_get(lpfc_mbx_read_top_topology
, la
);
2995 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
2997 shost
= lpfc_shost_from_vport(vport
);
2998 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2999 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
3001 /* if npiv is enabled and this adapter supports npiv log
3002 * a message that npiv is not supported in this topology
3004 if (phba
->cfg_enable_npiv
&& phba
->max_vpi
)
3005 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3006 "1309 Link Up Event npiv not supported in loop "
3008 /* Get Loop Map information */
3009 if (bf_get(lpfc_mbx_read_top_il
, la
)) {
3010 spin_lock(shost
->host_lock
);
3011 vport
->fc_flag
|= FC_LBIT
;
3012 spin_unlock(shost
->host_lock
);
3015 vport
->fc_myDID
= bf_get(lpfc_mbx_read_top_alpa_granted
, la
);
3016 i
= la
->lilpBde64
.tus
.f
.bdeSize
;
3019 phba
->alpa_map
[0] = 0;
3021 if (vport
->cfg_log_verbose
& LOG_LINK_EVENT
) {
3032 numalpa
= phba
->alpa_map
[0];
3034 while (j
< numalpa
) {
3035 memset(un
.pamap
, 0, 16);
3036 for (k
= 1; j
< numalpa
; k
++) {
3038 phba
->alpa_map
[j
+ 1];
3043 /* Link Up Event ALPA map */
3044 lpfc_printf_log(phba
,
3047 "1304 Link Up Event "
3048 "ALPA map Data: x%x "
3050 un
.pa
.wd1
, un
.pa
.wd2
,
3051 un
.pa
.wd3
, un
.pa
.wd4
);
3056 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)) {
3057 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
3058 (phba
->sli_rev
>= LPFC_SLI_REV3
))
3059 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3061 vport
->fc_myDID
= phba
->fc_pref_DID
;
3062 spin_lock(shost
->host_lock
);
3063 vport
->fc_flag
|= FC_LBIT
;
3064 spin_unlock(shost
->host_lock
);
3066 spin_unlock_irq(&phba
->hbalock
);
3069 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3073 rc
= lpfc_read_sparam(phba
, sparam_mbox
, 0);
3075 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3078 sparam_mbox
->vport
= vport
;
3079 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
3080 rc
= lpfc_sli_issue_mbox(phba
, sparam_mbox
, MBX_NOWAIT
);
3081 if (rc
== MBX_NOT_FINISHED
) {
3082 mp
= (struct lpfc_dmabuf
*) sparam_mbox
->context1
;
3083 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3085 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3089 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3090 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3093 vport
->port_state
= LPFC_LOCAL_CFG_LINK
;
3094 lpfc_config_link(phba
, cfglink_mbox
);
3095 cfglink_mbox
->vport
= vport
;
3096 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
3097 rc
= lpfc_sli_issue_mbox(phba
, cfglink_mbox
, MBX_NOWAIT
);
3098 if (rc
== MBX_NOT_FINISHED
) {
3099 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
3103 vport
->port_state
= LPFC_VPORT_UNKNOWN
;
3105 * Add the driver's default FCF record at FCF index 0 now. This
3106 * is phase 1 implementation that support FCF index 0 and driver
3109 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
3110 fcf_record
= kzalloc(sizeof(struct fcf_record
),
3112 if (unlikely(!fcf_record
)) {
3113 lpfc_printf_log(phba
, KERN_ERR
,
3115 "2554 Could not allocate memory for "
3121 lpfc_sli4_build_dflt_fcf_record(phba
, fcf_record
,
3122 LPFC_FCOE_FCF_DEF_INDEX
);
3123 rc
= lpfc_sli4_add_fcf_record(phba
, fcf_record
);
3125 lpfc_printf_log(phba
, KERN_ERR
,
3127 "2013 Could not manually add FCF "
3128 "record 0, status %d\n", rc
);
3136 * The driver is expected to do FIP/FCF. Call the port
3137 * and get the FCF Table.
3139 spin_lock_irq(&phba
->hbalock
);
3140 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3141 spin_unlock_irq(&phba
->hbalock
);
3144 /* This is the initial FCF discovery scan */
3145 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
3146 spin_unlock_irq(&phba
->hbalock
);
3147 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3148 "2778 Start FCF table scan at linkup\n");
3149 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3150 LPFC_FCOE_FCF_GET_FIRST
);
3152 spin_lock_irq(&phba
->hbalock
);
3153 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
3154 spin_unlock_irq(&phba
->hbalock
);
3157 /* Reset FCF roundrobin bmask for new discovery */
3158 lpfc_sli4_clear_fcf_rr_bmask(phba
);
3163 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3164 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3165 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3166 vport
->port_state
, sparam_mbox
, cfglink_mbox
);
3167 lpfc_issue_clear_la(phba
, vport
);
3172 lpfc_enable_la(struct lpfc_hba
*phba
)
3175 struct lpfc_sli
*psli
= &phba
->sli
;
3176 spin_lock_irq(&phba
->hbalock
);
3177 psli
->sli_flag
|= LPFC_PROCESS_LA
;
3178 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
3179 control
= readl(phba
->HCregaddr
);
3180 control
|= HC_LAINT_ENA
;
3181 writel(control
, phba
->HCregaddr
);
3182 readl(phba
->HCregaddr
); /* flush */
3184 spin_unlock_irq(&phba
->hbalock
);
3188 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
)
3190 lpfc_linkdown(phba
);
3191 lpfc_enable_la(phba
);
3192 lpfc_unregister_unused_fcf(phba
);
3193 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3198 * This routine handles processing a READ_TOPOLOGY mailbox
3199 * command upon completion. It is setup in the LPFC_MBOXQ
3200 * as the completion routine when the command is
3201 * handed off to the SLI layer.
3204 lpfc_mbx_cmpl_read_topology(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3206 struct lpfc_vport
*vport
= pmb
->vport
;
3207 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3208 struct lpfc_mbx_read_top
*la
;
3209 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3210 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3212 /* Unblock ELS traffic */
3213 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
3214 /* Check for error */
3215 if (mb
->mbxStatus
) {
3216 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3217 "1307 READ_LA mbox error x%x state x%x\n",
3218 mb
->mbxStatus
, vport
->port_state
);
3219 lpfc_mbx_issue_link_down(phba
);
3220 phba
->link_state
= LPFC_HBA_ERROR
;
3221 goto lpfc_mbx_cmpl_read_topology_free_mbuf
;
3224 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3226 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
3228 spin_lock_irq(shost
->host_lock
);
3229 if (bf_get(lpfc_mbx_read_top_pb
, la
))
3230 vport
->fc_flag
|= FC_BYPASSED_MODE
;
3232 vport
->fc_flag
&= ~FC_BYPASSED_MODE
;
3233 spin_unlock_irq(shost
->host_lock
);
3235 if ((phba
->fc_eventTag
< la
->eventTag
) ||
3236 (phba
->fc_eventTag
== la
->eventTag
)) {
3237 phba
->fc_stat
.LinkMultiEvent
++;
3238 if (bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
)
3239 if (phba
->fc_eventTag
!= 0)
3240 lpfc_linkdown(phba
);
3243 phba
->fc_eventTag
= la
->eventTag
;
3244 spin_lock_irq(&phba
->hbalock
);
3245 if (bf_get(lpfc_mbx_read_top_mm
, la
))
3246 phba
->sli
.sli_flag
|= LPFC_MENLO_MAINT
;
3248 phba
->sli
.sli_flag
&= ~LPFC_MENLO_MAINT
;
3249 spin_unlock_irq(&phba
->hbalock
);
3251 phba
->link_events
++;
3252 if ((bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
) &&
3253 (!bf_get(lpfc_mbx_read_top_mm
, la
))) {
3254 phba
->fc_stat
.LinkUp
++;
3255 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
3256 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3257 "1306 Link Up Event in loop back mode "
3258 "x%x received Data: x%x x%x x%x x%x\n",
3259 la
->eventTag
, phba
->fc_eventTag
,
3260 bf_get(lpfc_mbx_read_top_alpa_granted
,
3262 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3265 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3266 "1303 Link Up Event x%x received "
3267 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3268 la
->eventTag
, phba
->fc_eventTag
,
3269 bf_get(lpfc_mbx_read_top_alpa_granted
,
3271 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3273 bf_get(lpfc_mbx_read_top_mm
, la
),
3274 bf_get(lpfc_mbx_read_top_fa
, la
),
3275 phba
->wait_4_mlo_maint_flg
);
3277 lpfc_mbx_process_link_up(phba
, la
);
3278 } else if (bf_get(lpfc_mbx_read_top_att_type
, la
) ==
3279 LPFC_ATT_LINK_DOWN
) {
3280 phba
->fc_stat
.LinkDown
++;
3281 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
3282 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3283 "1308 Link Down Event in loop back mode "
3285 "Data: x%x x%x x%x\n",
3286 la
->eventTag
, phba
->fc_eventTag
,
3287 phba
->pport
->port_state
, vport
->fc_flag
);
3289 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3290 "1305 Link Down Event x%x received "
3291 "Data: x%x x%x x%x x%x x%x\n",
3292 la
->eventTag
, phba
->fc_eventTag
,
3293 phba
->pport
->port_state
, vport
->fc_flag
,
3294 bf_get(lpfc_mbx_read_top_mm
, la
),
3295 bf_get(lpfc_mbx_read_top_fa
, la
));
3296 lpfc_mbx_issue_link_down(phba
);
3298 if ((bf_get(lpfc_mbx_read_top_mm
, la
)) &&
3299 (bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
)) {
3300 if (phba
->link_state
!= LPFC_LINK_DOWN
) {
3301 phba
->fc_stat
.LinkDown
++;
3302 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3303 "1312 Link Down Event x%x received "
3304 "Data: x%x x%x x%x\n",
3305 la
->eventTag
, phba
->fc_eventTag
,
3306 phba
->pport
->port_state
, vport
->fc_flag
);
3307 lpfc_mbx_issue_link_down(phba
);
3309 lpfc_enable_la(phba
);
3311 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3312 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3313 "Data: x%x x%x x%x\n",
3314 la
->eventTag
, phba
->fc_eventTag
,
3315 phba
->pport
->port_state
, vport
->fc_flag
);
3317 * The cmnd that triggered this will be waiting for this
3320 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3321 if (phba
->wait_4_mlo_maint_flg
) {
3322 phba
->wait_4_mlo_maint_flg
= 0;
3323 wake_up_interruptible(&phba
->wait_4_mlo_m_q
);
3327 if (bf_get(lpfc_mbx_read_top_fa
, la
)) {
3328 if (bf_get(lpfc_mbx_read_top_mm
, la
))
3329 lpfc_issue_clear_la(phba
, vport
);
3330 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3332 bf_get(lpfc_mbx_read_top_fa
, la
));
3335 lpfc_mbx_cmpl_read_topology_free_mbuf
:
3336 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3338 mempool_free(pmb
, phba
->mbox_mem_pool
);
3343 * This routine handles processing a REG_LOGIN mailbox
3344 * command upon completion. It is setup in the LPFC_MBOXQ
3345 * as the completion routine when the command is
3346 * handed off to the SLI layer.
3349 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3351 struct lpfc_vport
*vport
= pmb
->vport
;
3352 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3353 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3354 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3356 pmb
->context1
= NULL
;
3357 pmb
->context2
= NULL
;
3359 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
3360 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3362 if (ndlp
->nlp_flag
& NLP_IGNR_REG_CMPL
||
3363 ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) {
3364 /* We rcvd a rscn after issuing this
3365 * mbox reg login, we may have cycled
3366 * back through the state and be
3367 * back at reg login state so this
3368 * mbox needs to be ignored becase
3369 * there is another reg login in
3372 spin_lock_irq(shost
->host_lock
);
3373 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
3374 spin_unlock_irq(shost
->host_lock
);
3376 /* Good status, call state machine */
3377 lpfc_disc_state_machine(vport
, ndlp
, pmb
,
3378 NLP_EVT_CMPL_REG_LOGIN
);
3380 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3382 mempool_free(pmb
, phba
->mbox_mem_pool
);
3383 /* decrement the node reference count held for this callback
3392 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3394 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3395 struct lpfc_vport
*vport
= pmb
->vport
;
3396 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3398 switch (mb
->mbxStatus
) {
3401 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3402 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3405 /* If VPI is busy, reset the HBA */
3407 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
3408 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3409 vport
->vpi
, mb
->mbxStatus
);
3410 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
3411 lpfc_workq_post_event(phba
, NULL
, NULL
,
3412 LPFC_EVT_RESET_HBA
);
3414 spin_lock_irq(shost
->host_lock
);
3415 vport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
3416 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
3417 spin_unlock_irq(shost
->host_lock
);
3418 vport
->unreg_vpi_cmpl
= VPORT_OK
;
3419 mempool_free(pmb
, phba
->mbox_mem_pool
);
3420 lpfc_cleanup_vports_rrqs(vport
, NULL
);
3422 * This shost reference might have been taken at the beginning of
3423 * lpfc_vport_delete()
3425 if ((vport
->load_flag
& FC_UNLOADING
) && (vport
!= phba
->pport
))
3426 scsi_host_put(shost
);
3430 lpfc_mbx_unreg_vpi(struct lpfc_vport
*vport
)
3432 struct lpfc_hba
*phba
= vport
->phba
;
3436 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3440 lpfc_unreg_vpi(phba
, vport
->vpi
, mbox
);
3441 mbox
->vport
= vport
;
3442 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_unreg_vpi
;
3443 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
3444 if (rc
== MBX_NOT_FINISHED
) {
3445 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
3446 "1800 Could not issue unreg_vpi\n");
3447 mempool_free(mbox
, phba
->mbox_mem_pool
);
3448 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
3455 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3457 struct lpfc_vport
*vport
= pmb
->vport
;
3458 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3459 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3461 switch (mb
->mbxStatus
) {
3465 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3466 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3468 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3469 spin_lock_irq(shost
->host_lock
);
3470 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
3471 spin_unlock_irq(shost
->host_lock
);
3472 vport
->fc_myDID
= 0;
3476 spin_lock_irq(shost
->host_lock
);
3477 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
3478 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
3479 spin_unlock_irq(shost
->host_lock
);
3480 vport
->num_disc_nodes
= 0;
3481 /* go thru NPR list and issue ELS PLOGIs */
3482 if (vport
->fc_npr_cnt
)
3483 lpfc_els_disc_plogi(vport
);
3485 if (!vport
->num_disc_nodes
) {
3486 spin_lock_irq(shost
->host_lock
);
3487 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
3488 spin_unlock_irq(shost
->host_lock
);
3489 lpfc_can_disctmo(vport
);
3491 vport
->port_state
= LPFC_VPORT_READY
;
3494 mempool_free(pmb
, phba
->mbox_mem_pool
);
3499 * lpfc_create_static_vport - Read HBA config region to create static vports.
3500 * @phba: pointer to lpfc hba data structure.
3502 * This routine issue a DUMP mailbox command for config region 22 to get
3503 * the list of static vports to be created. The function create vports
3504 * based on the information returned from the HBA.
3507 lpfc_create_static_vport(struct lpfc_hba
*phba
)
3509 LPFC_MBOXQ_t
*pmb
= NULL
;
3511 struct static_vport_info
*vport_info
;
3513 struct fc_vport_identifiers vport_id
;
3514 struct fc_vport
*new_fc_vport
;
3515 struct Scsi_Host
*shost
;
3516 struct lpfc_vport
*vport
;
3517 uint16_t offset
= 0;
3518 uint8_t *vport_buff
;
3519 struct lpfc_dmabuf
*mp
;
3520 uint32_t byte_count
= 0;
3522 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3524 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3525 "0542 lpfc_create_static_vport failed to"
3526 " allocate mailbox memory\n");
3532 vport_info
= kzalloc(sizeof(struct static_vport_info
), GFP_KERNEL
);
3534 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3535 "0543 lpfc_create_static_vport failed to"
3536 " allocate vport_info\n");
3537 mempool_free(pmb
, phba
->mbox_mem_pool
);
3541 vport_buff
= (uint8_t *) vport_info
;
3543 if (lpfc_dump_static_vport(phba
, pmb
, offset
))
3546 pmb
->vport
= phba
->pport
;
3547 rc
= lpfc_sli_issue_mbox_wait(phba
, pmb
, LPFC_MBOX_TMO
);
3549 if ((rc
!= MBX_SUCCESS
) || mb
->mbxStatus
) {
3550 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3551 "0544 lpfc_create_static_vport failed to"
3552 " issue dump mailbox command ret 0x%x "
3558 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3559 byte_count
= pmb
->u
.mqe
.un
.mb_words
[5];
3560 mp
= (struct lpfc_dmabuf
*) pmb
->context2
;
3561 if (byte_count
> sizeof(struct static_vport_info
) -
3563 byte_count
= sizeof(struct static_vport_info
)
3565 memcpy(vport_buff
+ offset
, mp
->virt
, byte_count
);
3566 offset
+= byte_count
;
3568 if (mb
->un
.varDmp
.word_cnt
>
3569 sizeof(struct static_vport_info
) - offset
)
3570 mb
->un
.varDmp
.word_cnt
=
3571 sizeof(struct static_vport_info
)
3573 byte_count
= mb
->un
.varDmp
.word_cnt
;
3574 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
3575 vport_buff
+ offset
,
3578 offset
+= byte_count
;
3581 } while (byte_count
&&
3582 offset
< sizeof(struct static_vport_info
));
3585 if ((le32_to_cpu(vport_info
->signature
) != VPORT_INFO_SIG
) ||
3586 ((le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
)
3587 != VPORT_INFO_REV
)) {
3588 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3589 "0545 lpfc_create_static_vport bad"
3590 " information header 0x%x 0x%x\n",
3591 le32_to_cpu(vport_info
->signature
),
3592 le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
);
3597 shost
= lpfc_shost_from_vport(phba
->pport
);
3599 for (i
= 0; i
< MAX_STATIC_VPORT_COUNT
; i
++) {
3600 memset(&vport_id
, 0, sizeof(vport_id
));
3601 vport_id
.port_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwpn
);
3602 vport_id
.node_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwnn
);
3603 if (!vport_id
.port_name
|| !vport_id
.node_name
)
3606 vport_id
.roles
= FC_PORT_ROLE_FCP_INITIATOR
;
3607 vport_id
.vport_type
= FC_PORTTYPE_NPIV
;
3608 vport_id
.disable
= false;
3609 new_fc_vport
= fc_vport_create(shost
, 0, &vport_id
);
3611 if (!new_fc_vport
) {
3612 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3613 "0546 lpfc_create_static_vport failed to"
3618 vport
= *(struct lpfc_vport
**)new_fc_vport
->dd_data
;
3619 vport
->vport_flag
|= STATIC_VPORT
;
3624 if (rc
!= MBX_TIMEOUT
) {
3625 if (pmb
->context2
) {
3626 mp
= (struct lpfc_dmabuf
*) pmb
->context2
;
3627 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3630 mempool_free(pmb
, phba
->mbox_mem_pool
);
3637 * This routine handles processing a Fabric REG_LOGIN mailbox
3638 * command upon completion. It is setup in the LPFC_MBOXQ
3639 * as the completion routine when the command is
3640 * handed off to the SLI layer.
3643 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3645 struct lpfc_vport
*vport
= pmb
->vport
;
3646 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3647 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3648 struct lpfc_nodelist
*ndlp
;
3649 struct Scsi_Host
*shost
;
3651 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3652 pmb
->context1
= NULL
;
3653 pmb
->context2
= NULL
;
3655 if (mb
->mbxStatus
) {
3656 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3657 "0258 Register Fabric login error: 0x%x\n",
3659 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3661 mempool_free(pmb
, phba
->mbox_mem_pool
);
3663 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3664 /* FLOGI failed, use loop map to make discovery list */
3665 lpfc_disc_list_loopmap(vport
);
3667 /* Start discovery */
3668 lpfc_disc_start(vport
);
3669 /* Decrement the reference count to ndlp after the
3670 * reference to the ndlp are done.
3676 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3677 /* Decrement the reference count to ndlp after the reference
3678 * to the ndlp are done.
3684 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3685 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3686 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3687 ndlp
->nlp_type
|= NLP_FABRIC
;
3688 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3690 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
3691 /* when physical port receive logo donot start
3692 * vport discovery */
3693 if (!(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
3694 lpfc_start_fdiscs(phba
);
3696 shost
= lpfc_shost_from_vport(vport
);
3697 spin_lock_irq(shost
->host_lock
);
3698 vport
->fc_flag
&= ~FC_LOGO_RCVD_DID_CHNG
;
3699 spin_unlock_irq(shost
->host_lock
);
3701 lpfc_do_scr_ns_plogi(phba
, vport
);
3704 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3706 mempool_free(pmb
, phba
->mbox_mem_pool
);
3708 /* Drop the reference count from the mbox at the end after
3709 * all the current reference to the ndlp have been done.
3716 * This routine handles processing a NameServer REG_LOGIN mailbox
3717 * command upon completion. It is setup in the LPFC_MBOXQ
3718 * as the completion routine when the command is
3719 * handed off to the SLI layer.
3722 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3724 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3725 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3726 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3727 struct lpfc_vport
*vport
= pmb
->vport
;
3729 pmb
->context1
= NULL
;
3730 pmb
->context2
= NULL
;
3732 if (mb
->mbxStatus
) {
3734 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3735 "0260 Register NameServer error: 0x%x\n",
3737 /* decrement the node reference count held for this
3738 * callback function.
3741 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3743 mempool_free(pmb
, phba
->mbox_mem_pool
);
3745 /* If no other thread is using the ndlp, free it */
3746 lpfc_nlp_not_used(ndlp
);
3748 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3750 * RegLogin failed, use loop map to make discovery
3753 lpfc_disc_list_loopmap(vport
);
3755 /* Start discovery */
3756 lpfc_disc_start(vport
);
3759 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3763 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3764 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3765 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3766 ndlp
->nlp_type
|= NLP_FABRIC
;
3767 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3769 if (vport
->port_state
< LPFC_VPORT_READY
) {
3770 /* Link up discovery requires Fabric registration. */
3771 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0, 0); /* Do this first! */
3772 lpfc_ns_cmd(vport
, SLI_CTNS_RNN_ID
, 0, 0);
3773 lpfc_ns_cmd(vport
, SLI_CTNS_RSNN_NN
, 0, 0);
3774 lpfc_ns_cmd(vport
, SLI_CTNS_RSPN_ID
, 0, 0);
3775 lpfc_ns_cmd(vport
, SLI_CTNS_RFT_ID
, 0, 0);
3777 /* Issue SCR just before NameServer GID_FT Query */
3778 lpfc_issue_els_scr(vport
, SCR_DID
, 0);
3781 vport
->fc_ns_retry
= 0;
3782 /* Good status, issue CT Request to NameServer */
3783 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0)) {
3784 /* Cannot issue NameServer Query, so finish up discovery */
3788 /* decrement the node reference count held for this
3789 * callback function.
3792 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3794 mempool_free(pmb
, phba
->mbox_mem_pool
);
3800 lpfc_register_remote_port(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
3802 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3803 struct fc_rport
*rport
;
3804 struct lpfc_rport_data
*rdata
;
3805 struct fc_rport_identifiers rport_ids
;
3806 struct lpfc_hba
*phba
= vport
->phba
;
3808 /* Remote port has reappeared. Re-register w/ FC transport */
3809 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
3810 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
3811 rport_ids
.port_id
= ndlp
->nlp_DID
;
3812 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
3815 * We leave our node pointer in rport->dd_data when we unregister a
3816 * FCP target port. But fc_remote_port_add zeros the space to which
3817 * rport->dd_data points. So, if we're reusing a previously
3818 * registered port, drop the reference that we took the last time we
3819 * registered the port.
3821 if (ndlp
->rport
&& ndlp
->rport
->dd_data
&&
3822 ((struct lpfc_rport_data
*) ndlp
->rport
->dd_data
)->pnode
== ndlp
)
3825 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
3826 "rport add: did:x%x flg:x%x type x%x",
3827 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
3829 /* Don't add the remote port if unloading. */
3830 if (vport
->load_flag
& FC_UNLOADING
)
3833 ndlp
->rport
= rport
= fc_remote_port_add(shost
, 0, &rport_ids
);
3834 if (!rport
|| !get_device(&rport
->dev
)) {
3835 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
3836 "Warning: fc_remote_port_add failed\n");
3840 /* initialize static port data */
3841 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
3842 rport
->supported_classes
= ndlp
->nlp_class_sup
;
3843 rdata
= rport
->dd_data
;
3844 rdata
->pnode
= lpfc_nlp_get(ndlp
);
3846 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
3847 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
3848 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
3849 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
3851 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
3852 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
3854 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3855 "3183 rport register x%06x, rport %p role x%x\n",
3856 ndlp
->nlp_DID
, rport
, rport_ids
.roles
);
3858 if ((rport
->scsi_target_id
!= -1) &&
3859 (rport
->scsi_target_id
< LPFC_MAX_TARGET
)) {
3860 ndlp
->nlp_sid
= rport
->scsi_target_id
;
3866 lpfc_unregister_remote_port(struct lpfc_nodelist
*ndlp
)
3868 struct fc_rport
*rport
= ndlp
->rport
;
3870 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
3871 "rport delete: did:x%x flg:x%x type x%x",
3872 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
3874 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3875 "3184 rport unregister x%06x, rport %p\n",
3876 ndlp
->nlp_DID
, rport
);
3878 fc_remote_port_delete(rport
);
3884 lpfc_nlp_counters(struct lpfc_vport
*vport
, int state
, int count
)
3886 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3888 spin_lock_irq(shost
->host_lock
);
3890 case NLP_STE_UNUSED_NODE
:
3891 vport
->fc_unused_cnt
+= count
;
3893 case NLP_STE_PLOGI_ISSUE
:
3894 vport
->fc_plogi_cnt
+= count
;
3896 case NLP_STE_ADISC_ISSUE
:
3897 vport
->fc_adisc_cnt
+= count
;
3899 case NLP_STE_REG_LOGIN_ISSUE
:
3900 vport
->fc_reglogin_cnt
+= count
;
3902 case NLP_STE_PRLI_ISSUE
:
3903 vport
->fc_prli_cnt
+= count
;
3905 case NLP_STE_UNMAPPED_NODE
:
3906 vport
->fc_unmap_cnt
+= count
;
3908 case NLP_STE_MAPPED_NODE
:
3909 vport
->fc_map_cnt
+= count
;
3911 case NLP_STE_NPR_NODE
:
3912 vport
->fc_npr_cnt
+= count
;
3915 spin_unlock_irq(shost
->host_lock
);
3919 lpfc_nlp_state_cleanup(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
3920 int old_state
, int new_state
)
3922 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3924 if (new_state
== NLP_STE_UNMAPPED_NODE
) {
3925 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
3926 ndlp
->nlp_type
|= NLP_FC_NODE
;
3928 if (new_state
== NLP_STE_MAPPED_NODE
)
3929 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
3930 if (new_state
== NLP_STE_NPR_NODE
)
3931 ndlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
3933 /* Transport interface */
3934 if (ndlp
->rport
&& (old_state
== NLP_STE_MAPPED_NODE
||
3935 old_state
== NLP_STE_UNMAPPED_NODE
)) {
3936 vport
->phba
->nport_event_cnt
++;
3937 lpfc_unregister_remote_port(ndlp
);
3940 if (new_state
== NLP_STE_MAPPED_NODE
||
3941 new_state
== NLP_STE_UNMAPPED_NODE
) {
3942 vport
->phba
->nport_event_cnt
++;
3944 * Tell the fc transport about the port, if we haven't
3945 * already. If we have, and it's a scsi entity, be
3946 * sure to unblock any attached scsi devices
3948 lpfc_register_remote_port(vport
, ndlp
);
3950 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
3951 (vport
->stat_data_enabled
)) {
3953 * A new target is discovered, if there is no buffer for
3954 * statistical data collection allocate buffer.
3956 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
3957 sizeof(struct lpfc_scsicmd_bkt
),
3960 if (!ndlp
->lat_data
)
3961 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
3962 "0286 lpfc_nlp_state_cleanup failed to "
3963 "allocate statistical data buffer DID "
3964 "0x%x\n", ndlp
->nlp_DID
);
3967 * if we added to Mapped list, but the remote port
3968 * registration failed or assigned a target id outside
3969 * our presentable range - move the node to the
3972 if (new_state
== NLP_STE_MAPPED_NODE
&&
3974 ndlp
->rport
->scsi_target_id
== -1 ||
3975 ndlp
->rport
->scsi_target_id
>= LPFC_MAX_TARGET
)) {
3976 spin_lock_irq(shost
->host_lock
);
3977 ndlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
3978 spin_unlock_irq(shost
->host_lock
);
3979 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3984 lpfc_nlp_state_name(char *buffer
, size_t size
, int state
)
3986 static char *states
[] = {
3987 [NLP_STE_UNUSED_NODE
] = "UNUSED",
3988 [NLP_STE_PLOGI_ISSUE
] = "PLOGI",
3989 [NLP_STE_ADISC_ISSUE
] = "ADISC",
3990 [NLP_STE_REG_LOGIN_ISSUE
] = "REGLOGIN",
3991 [NLP_STE_PRLI_ISSUE
] = "PRLI",
3992 [NLP_STE_LOGO_ISSUE
] = "LOGO",
3993 [NLP_STE_UNMAPPED_NODE
] = "UNMAPPED",
3994 [NLP_STE_MAPPED_NODE
] = "MAPPED",
3995 [NLP_STE_NPR_NODE
] = "NPR",
3998 if (state
< NLP_STE_MAX_STATE
&& states
[state
])
3999 strlcpy(buffer
, states
[state
], size
);
4001 snprintf(buffer
, size
, "unknown (%d)", state
);
4006 lpfc_nlp_set_state(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4009 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4010 int old_state
= ndlp
->nlp_state
;
4011 char name1
[16], name2
[16];
4013 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4014 "0904 NPort state transition x%06x, %s -> %s\n",
4016 lpfc_nlp_state_name(name1
, sizeof(name1
), old_state
),
4017 lpfc_nlp_state_name(name2
, sizeof(name2
), state
));
4019 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4020 "node statechg did:x%x old:%d ste:%d",
4021 ndlp
->nlp_DID
, old_state
, state
);
4023 if (old_state
== NLP_STE_NPR_NODE
&&
4024 state
!= NLP_STE_NPR_NODE
)
4025 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4026 if (old_state
== NLP_STE_UNMAPPED_NODE
) {
4027 ndlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
4028 ndlp
->nlp_type
&= ~NLP_FC_NODE
;
4031 if (list_empty(&ndlp
->nlp_listp
)) {
4032 spin_lock_irq(shost
->host_lock
);
4033 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4034 spin_unlock_irq(shost
->host_lock
);
4035 } else if (old_state
)
4036 lpfc_nlp_counters(vport
, old_state
, -1);
4038 ndlp
->nlp_state
= state
;
4039 lpfc_nlp_counters(vport
, state
, 1);
4040 lpfc_nlp_state_cleanup(vport
, ndlp
, old_state
, state
);
4044 lpfc_enqueue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4046 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4048 if (list_empty(&ndlp
->nlp_listp
)) {
4049 spin_lock_irq(shost
->host_lock
);
4050 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4051 spin_unlock_irq(shost
->host_lock
);
4056 lpfc_dequeue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4058 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4060 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4061 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4062 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4063 spin_lock_irq(shost
->host_lock
);
4064 list_del_init(&ndlp
->nlp_listp
);
4065 spin_unlock_irq(shost
->host_lock
);
4066 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4067 NLP_STE_UNUSED_NODE
);
4071 lpfc_disable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4073 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4074 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4075 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4076 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4077 NLP_STE_UNUSED_NODE
);
4080 * lpfc_initialize_node - Initialize all fields of node object
4081 * @vport: Pointer to Virtual Port object.
4082 * @ndlp: Pointer to FC node object.
4083 * @did: FC_ID of the node.
4085 * This function is always called when node object need to be initialized.
4086 * It initializes all the fields of the node object. Although the reference
4087 * to phba from @ndlp can be obtained indirectly through it's reference to
4088 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4089 * to the life-span of the @ndlp might go beyond the existence of @vport as
4090 * the final release of ndlp is determined by its reference count. And, the
4091 * operation on @ndlp needs the reference to phba.
4094 lpfc_initialize_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4097 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
4098 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
4099 init_timer(&ndlp
->nlp_delayfunc
);
4100 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
4101 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
4102 ndlp
->nlp_DID
= did
;
4103 ndlp
->vport
= vport
;
4104 ndlp
->phba
= vport
->phba
;
4105 ndlp
->nlp_sid
= NLP_NO_SID
;
4106 kref_init(&ndlp
->kref
);
4107 NLP_INT_NODE_ACT(ndlp
);
4108 atomic_set(&ndlp
->cmd_pending
, 0);
4109 ndlp
->cmd_qdepth
= vport
->cfg_tgt_queue_depth
;
4110 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
4111 ndlp
->nlp_rpi
= lpfc_sli4_alloc_rpi(vport
->phba
);
4114 struct lpfc_nodelist
*
4115 lpfc_enable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4118 struct lpfc_hba
*phba
= vport
->phba
;
4120 unsigned long flags
;
4125 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
4126 /* The ndlp should not be in memory free mode */
4127 if (NLP_CHK_FREE_REQ(ndlp
)) {
4128 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4129 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4130 "0277 lpfc_enable_node: ndlp:x%p "
4131 "usgmap:x%x refcnt:%d\n",
4132 (void *)ndlp
, ndlp
->nlp_usg_map
,
4133 atomic_read(&ndlp
->kref
.refcount
));
4136 /* The ndlp should not already be in active mode */
4137 if (NLP_CHK_NODE_ACT(ndlp
)) {
4138 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4139 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4140 "0278 lpfc_enable_node: ndlp:x%p "
4141 "usgmap:x%x refcnt:%d\n",
4142 (void *)ndlp
, ndlp
->nlp_usg_map
,
4143 atomic_read(&ndlp
->kref
.refcount
));
4147 /* Keep the original DID */
4148 did
= ndlp
->nlp_DID
;
4150 /* re-initialize ndlp except of ndlp linked list pointer */
4151 memset((((char *)ndlp
) + sizeof (struct list_head
)), 0,
4152 sizeof (struct lpfc_nodelist
) - sizeof (struct list_head
));
4153 lpfc_initialize_node(vport
, ndlp
, did
);
4155 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4157 if (state
!= NLP_STE_UNUSED_NODE
)
4158 lpfc_nlp_set_state(vport
, ndlp
, state
);
4160 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4161 "node enable: did:x%x",
4162 ndlp
->nlp_DID
, 0, 0);
4167 lpfc_drop_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4170 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4171 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4172 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4173 * until ALL other outstanding threads have completed. We check
4174 * that the ndlp not already in the UNUSED state before we proceed.
4176 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
4178 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
4179 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
4180 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4186 * Start / ReStart rescue timer for Discovery / RSCN handling
4189 lpfc_set_disctmo(struct lpfc_vport
*vport
)
4191 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4192 struct lpfc_hba
*phba
= vport
->phba
;
4195 if (vport
->port_state
== LPFC_LOCAL_CFG_LINK
) {
4196 /* For FAN, timeout should be greater than edtov */
4197 tmo
= (((phba
->fc_edtov
+ 999) / 1000) + 1);
4199 /* Normal discovery timeout should be > than ELS/CT timeout
4200 * FC spec states we need 3 * ratov for CT requests
4202 tmo
= ((phba
->fc_ratov
* 3) + 3);
4206 if (!timer_pending(&vport
->fc_disctmo
)) {
4207 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4208 "set disc timer: tmo:x%x state:x%x flg:x%x",
4209 tmo
, vport
->port_state
, vport
->fc_flag
);
4212 mod_timer(&vport
->fc_disctmo
, jiffies
+ HZ
* tmo
);
4213 spin_lock_irq(shost
->host_lock
);
4214 vport
->fc_flag
|= FC_DISC_TMO
;
4215 spin_unlock_irq(shost
->host_lock
);
4217 /* Start Discovery Timer state <hba_state> */
4218 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4219 "0247 Start Discovery Timer state x%x "
4220 "Data: x%x x%lx x%x x%x\n",
4221 vport
->port_state
, tmo
,
4222 (unsigned long)&vport
->fc_disctmo
, vport
->fc_plogi_cnt
,
4223 vport
->fc_adisc_cnt
);
4229 * Cancel rescue timer for Discovery / RSCN handling
4232 lpfc_can_disctmo(struct lpfc_vport
*vport
)
4234 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4235 unsigned long iflags
;
4237 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4238 "can disc timer: state:x%x rtry:x%x flg:x%x",
4239 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
4241 /* Turn off discovery timer if its running */
4242 if (vport
->fc_flag
& FC_DISC_TMO
) {
4243 spin_lock_irqsave(shost
->host_lock
, iflags
);
4244 vport
->fc_flag
&= ~FC_DISC_TMO
;
4245 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
4246 del_timer_sync(&vport
->fc_disctmo
);
4247 spin_lock_irqsave(&vport
->work_port_lock
, iflags
);
4248 vport
->work_port_events
&= ~WORKER_DISC_TMO
;
4249 spin_unlock_irqrestore(&vport
->work_port_lock
, iflags
);
4252 /* Cancel Discovery Timer state <hba_state> */
4253 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4254 "0248 Cancel Discovery Timer state x%x "
4255 "Data: x%x x%x x%x\n",
4256 vport
->port_state
, vport
->fc_flag
,
4257 vport
->fc_plogi_cnt
, vport
->fc_adisc_cnt
);
4262 * Check specified ring for outstanding IOCB on the SLI queue
4263 * Return true if iocb matches the specified nport
4266 lpfc_check_sli_ndlp(struct lpfc_hba
*phba
,
4267 struct lpfc_sli_ring
*pring
,
4268 struct lpfc_iocbq
*iocb
,
4269 struct lpfc_nodelist
*ndlp
)
4271 struct lpfc_sli
*psli
= &phba
->sli
;
4272 IOCB_t
*icmd
= &iocb
->iocb
;
4273 struct lpfc_vport
*vport
= ndlp
->vport
;
4275 if (iocb
->vport
!= vport
)
4278 if (pring
->ringno
== LPFC_ELS_RING
) {
4279 switch (icmd
->ulpCommand
) {
4280 case CMD_GEN_REQUEST64_CR
:
4281 if (iocb
->context_un
.ndlp
== ndlp
)
4283 case CMD_ELS_REQUEST64_CR
:
4284 if (icmd
->un
.elsreq64
.remoteID
== ndlp
->nlp_DID
)
4286 case CMD_XMIT_ELS_RSP64_CX
:
4287 if (iocb
->context1
== (uint8_t *) ndlp
)
4290 } else if (pring
->ringno
== psli
->extra_ring
) {
4292 } else if (pring
->ringno
== psli
->fcp_ring
) {
4293 /* Skip match check if waiting to relogin to FCP target */
4294 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4295 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
4298 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
4301 } else if (pring
->ringno
== psli
->next_ring
) {
4308 * Free resources / clean up outstanding I/Os
4309 * associated with nlp_rpi in the LPFC_NODELIST entry.
4312 lpfc_no_rpi(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
4314 LIST_HEAD(completions
);
4315 struct lpfc_sli
*psli
;
4316 struct lpfc_sli_ring
*pring
;
4317 struct lpfc_iocbq
*iocb
, *next_iocb
;
4320 lpfc_fabric_abort_nport(ndlp
);
4323 * Everything that matches on txcmplq will be returned
4324 * by firmware with a no rpi error.
4327 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4328 /* Now process each ring */
4329 for (i
= 0; i
< psli
->num_rings
; i
++) {
4330 pring
= &psli
->ring
[i
];
4332 spin_lock_irq(&phba
->hbalock
);
4333 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
,
4336 * Check to see if iocb matches the nport we are
4339 if ((lpfc_check_sli_ndlp(phba
, pring
, iocb
,
4341 /* It matches, so deque and call compl
4343 list_move_tail(&iocb
->list
,
4348 spin_unlock_irq(&phba
->hbalock
);
4352 /* Cancel all the IOCBs from the completions list */
4353 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
4360 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4361 * @phba: Pointer to HBA context object.
4362 * @pmb: Pointer to mailbox object.
4364 * This function will issue an ELS LOGO command after completing
4368 lpfc_nlp_logo_unreg(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
4370 struct lpfc_vport
*vport
= pmb
->vport
;
4371 struct lpfc_nodelist
*ndlp
;
4373 ndlp
= (struct lpfc_nodelist
*)(pmb
->context1
);
4376 lpfc_issue_els_logo(vport
, ndlp
, 0);
4380 * Free rpi associated with LPFC_NODELIST entry.
4381 * This routine is called from lpfc_freenode(), when we are removing
4382 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4383 * LOGO that completes successfully, and we are waiting to PLOGI back
4384 * to the remote NPort. In addition, it is called after we receive
4385 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4386 * we are waiting to PLOGI back to the remote NPort.
4389 lpfc_unreg_rpi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4391 struct lpfc_hba
*phba
= vport
->phba
;
4396 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4397 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4399 /* SLI4 ports require the physical rpi value. */
4400 rpi
= ndlp
->nlp_rpi
;
4401 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4402 rpi
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
4404 lpfc_unreg_login(phba
, vport
->vpi
, rpi
, mbox
);
4405 mbox
->vport
= vport
;
4406 if (ndlp
->nlp_flag
& NLP_ISSUE_LOGO
) {
4407 mbox
->context1
= ndlp
;
4408 mbox
->mbox_cmpl
= lpfc_nlp_logo_unreg
;
4410 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4413 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4414 if (rc
== MBX_NOT_FINISHED
)
4415 mempool_free(mbox
, phba
->mbox_mem_pool
);
4417 lpfc_no_rpi(phba
, ndlp
);
4419 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
4421 ndlp
->nlp_flag
&= ~NLP_RPI_REGISTERED
;
4422 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4429 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4430 * @phba: pointer to lpfc hba data structure.
4432 * This routine is invoked to unregister all the currently registered RPIs
4436 lpfc_unreg_hba_rpis(struct lpfc_hba
*phba
)
4438 struct lpfc_vport
**vports
;
4439 struct lpfc_nodelist
*ndlp
;
4440 struct Scsi_Host
*shost
;
4443 vports
= lpfc_create_vport_work_array(phba
);
4445 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
4446 "2884 Vport array allocation failed \n");
4449 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
4450 shost
= lpfc_shost_from_vport(vports
[i
]);
4451 spin_lock_irq(shost
->host_lock
);
4452 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
4453 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4454 /* The mempool_alloc might sleep */
4455 spin_unlock_irq(shost
->host_lock
);
4456 lpfc_unreg_rpi(vports
[i
], ndlp
);
4457 spin_lock_irq(shost
->host_lock
);
4460 spin_unlock_irq(shost
->host_lock
);
4462 lpfc_destroy_vport_work_array(phba
, vports
);
4466 lpfc_unreg_all_rpis(struct lpfc_vport
*vport
)
4468 struct lpfc_hba
*phba
= vport
->phba
;
4472 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
4473 lpfc_sli4_unreg_all_rpis(vport
);
4477 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4479 lpfc_unreg_login(phba
, vport
->vpi
, LPFC_UNREG_ALL_RPIS_VPORT
,
4481 mbox
->vport
= vport
;
4482 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4483 mbox
->context1
= NULL
;
4484 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4485 if (rc
!= MBX_TIMEOUT
)
4486 mempool_free(mbox
, phba
->mbox_mem_pool
);
4488 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4489 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4490 "1836 Could not issue "
4491 "unreg_login(all_rpis) status %d\n", rc
);
4496 lpfc_unreg_default_rpis(struct lpfc_vport
*vport
)
4498 struct lpfc_hba
*phba
= vport
->phba
;
4502 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4504 lpfc_unreg_did(phba
, vport
->vpi
, LPFC_UNREG_ALL_DFLT_RPIS
,
4506 mbox
->vport
= vport
;
4507 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4508 mbox
->context1
= NULL
;
4509 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4510 if (rc
!= MBX_TIMEOUT
)
4511 mempool_free(mbox
, phba
->mbox_mem_pool
);
4513 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4514 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4515 "1815 Could not issue "
4516 "unreg_did (default rpis) status %d\n",
4522 * Free resources associated with LPFC_NODELIST entry
4523 * so it can be freed.
4526 lpfc_cleanup_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4528 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4529 struct lpfc_hba
*phba
= vport
->phba
;
4530 LPFC_MBOXQ_t
*mb
, *nextmb
;
4531 struct lpfc_dmabuf
*mp
;
4533 /* Cleanup node for NPort <nlp_DID> */
4534 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4535 "0900 Cleanup node for NPort x%x "
4536 "Data: x%x x%x x%x\n",
4537 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
4538 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4539 if (NLP_CHK_FREE_REQ(ndlp
)) {
4540 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4541 "0280 lpfc_cleanup_node: ndlp:x%p "
4542 "usgmap:x%x refcnt:%d\n",
4543 (void *)ndlp
, ndlp
->nlp_usg_map
,
4544 atomic_read(&ndlp
->kref
.refcount
));
4545 lpfc_dequeue_node(vport
, ndlp
);
4547 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4548 "0281 lpfc_cleanup_node: ndlp:x%p "
4549 "usgmap:x%x refcnt:%d\n",
4550 (void *)ndlp
, ndlp
->nlp_usg_map
,
4551 atomic_read(&ndlp
->kref
.refcount
));
4552 lpfc_disable_node(vport
, ndlp
);
4556 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4558 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4559 if ((mb
= phba
->sli
.mbox_active
)) {
4560 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4561 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4562 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4563 mb
->context2
= NULL
;
4564 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4568 spin_lock_irq(&phba
->hbalock
);
4569 /* Cleanup REG_LOGIN completions which are not yet processed */
4570 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
4571 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) ||
4572 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) ||
4573 (ndlp
!= (struct lpfc_nodelist
*) mb
->context2
))
4576 mb
->context2
= NULL
;
4577 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4580 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
4581 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4582 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4583 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4584 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
4586 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4589 list_del(&mb
->list
);
4590 mempool_free(mb
, phba
->mbox_mem_pool
);
4591 /* We shall not invoke the lpfc_nlp_put to decrement
4592 * the ndlp reference count as we are in the process
4593 * of lpfc_nlp_release.
4597 spin_unlock_irq(&phba
->hbalock
);
4599 lpfc_els_abort(phba
, ndlp
);
4601 spin_lock_irq(shost
->host_lock
);
4602 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
4603 spin_unlock_irq(shost
->host_lock
);
4605 ndlp
->nlp_last_elscmd
= 0;
4606 del_timer_sync(&ndlp
->nlp_delayfunc
);
4608 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
4609 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
4610 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4611 lpfc_unreg_rpi(vport
, ndlp
);
4617 * Check to see if we can free the nlp back to the freelist.
4618 * If we are in the middle of using the nlp in the discovery state
4619 * machine, defer the free till we reach the end of the state machine.
4622 lpfc_nlp_remove(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4624 struct lpfc_hba
*phba
= vport
->phba
;
4625 struct lpfc_rport_data
*rdata
;
4629 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4630 if ((ndlp
->nlp_flag
& NLP_DEFER_RM
) &&
4631 !(ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) &&
4632 !(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
)) {
4633 /* For this case we need to cleanup the default rpi
4634 * allocated by the firmware.
4636 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))
4638 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, ndlp
->nlp_DID
,
4639 (uint8_t *) &vport
->fc_sparam
, mbox
, ndlp
->nlp_rpi
);
4641 mempool_free(mbox
, phba
->mbox_mem_pool
);
4644 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
4645 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
4646 mbox
->vport
= vport
;
4647 mbox
->context2
= ndlp
;
4648 rc
=lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4649 if (rc
== MBX_NOT_FINISHED
) {
4650 mempool_free(mbox
, phba
->mbox_mem_pool
);
4655 lpfc_cleanup_node(vport
, ndlp
);
4658 * We can get here with a non-NULL ndlp->rport because when we
4659 * unregister a rport we don't break the rport/node linkage. So if we
4660 * do, make sure we don't leaving any dangling pointers behind.
4663 rdata
= ndlp
->rport
->dd_data
;
4664 rdata
->pnode
= NULL
;
4670 lpfc_matchdid(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4673 D_ID mydid
, ndlpdid
, matchdid
;
4675 if (did
== Bcast_DID
)
4678 /* First check for Direct match */
4679 if (ndlp
->nlp_DID
== did
)
4682 /* Next check for area/domain identically equals 0 match */
4683 mydid
.un
.word
= vport
->fc_myDID
;
4684 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
4688 matchdid
.un
.word
= did
;
4689 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
4690 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
4691 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
4692 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
4693 if ((ndlpdid
.un
.b
.domain
== 0) &&
4694 (ndlpdid
.un
.b
.area
== 0)) {
4695 if (ndlpdid
.un
.b
.id
)
4701 matchdid
.un
.word
= ndlp
->nlp_DID
;
4702 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
4703 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
4704 if ((matchdid
.un
.b
.domain
== 0) &&
4705 (matchdid
.un
.b
.area
== 0)) {
4706 if (matchdid
.un
.b
.id
)
4714 /* Search for a nodelist entry */
4715 static struct lpfc_nodelist
*
4716 __lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
4718 struct lpfc_nodelist
*ndlp
;
4721 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
4722 if (lpfc_matchdid(vport
, ndlp
, did
)) {
4723 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
4724 ((uint32_t) ndlp
->nlp_xri
<< 16) |
4725 ((uint32_t) ndlp
->nlp_type
<< 8) |
4726 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
4727 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4728 "0929 FIND node DID "
4729 "Data: x%p x%x x%x x%x\n",
4730 ndlp
, ndlp
->nlp_DID
,
4731 ndlp
->nlp_flag
, data1
);
4736 /* FIND node did <did> NOT FOUND */
4737 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4738 "0932 FIND node did x%x NOT FOUND.\n", did
);
4742 struct lpfc_nodelist
*
4743 lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
4745 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4746 struct lpfc_nodelist
*ndlp
;
4747 unsigned long iflags
;
4749 spin_lock_irqsave(shost
->host_lock
, iflags
);
4750 ndlp
= __lpfc_findnode_did(vport
, did
);
4751 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
4755 struct lpfc_nodelist
*
4756 lpfc_setup_disc_node(struct lpfc_vport
*vport
, uint32_t did
)
4758 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4759 struct lpfc_nodelist
*ndlp
;
4761 ndlp
= lpfc_findnode_did(vport
, did
);
4763 if ((vport
->fc_flag
& FC_RSCN_MODE
) != 0 &&
4764 lpfc_rscn_payload_check(vport
, did
) == 0)
4766 ndlp
= (struct lpfc_nodelist
*)
4767 mempool_alloc(vport
->phba
->nlp_mem_pool
, GFP_KERNEL
);
4770 lpfc_nlp_init(vport
, ndlp
, did
);
4771 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
4772 spin_lock_irq(shost
->host_lock
);
4773 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4774 spin_unlock_irq(shost
->host_lock
);
4776 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
4777 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
4780 spin_lock_irq(shost
->host_lock
);
4781 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4782 spin_unlock_irq(shost
->host_lock
);
4786 if ((vport
->fc_flag
& FC_RSCN_MODE
) &&
4787 !(vport
->fc_flag
& FC_NDISC_ACTIVE
)) {
4788 if (lpfc_rscn_payload_check(vport
, did
)) {
4789 /* If we've already received a PLOGI from this NPort
4790 * we don't need to try to discover it again.
4792 if (ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
4795 /* Since this node is marked for discovery,
4796 * delay timeout is not needed.
4798 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4799 spin_lock_irq(shost
->host_lock
);
4800 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4801 spin_unlock_irq(shost
->host_lock
);
4805 /* If we've already received a PLOGI from this NPort,
4806 * or we are already in the process of discovery on it,
4807 * we don't need to try to discover it again.
4809 if (ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
||
4810 ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
4811 ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
4813 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
4814 spin_lock_irq(shost
->host_lock
);
4815 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
4816 spin_unlock_irq(shost
->host_lock
);
4821 /* Build a list of nodes to discover based on the loopmap */
4823 lpfc_disc_list_loopmap(struct lpfc_vport
*vport
)
4825 struct lpfc_hba
*phba
= vport
->phba
;
4827 uint32_t alpa
, index
;
4829 if (!lpfc_is_link_up(phba
))
4832 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
4835 /* Check for loop map present or not */
4836 if (phba
->alpa_map
[0]) {
4837 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
4838 alpa
= phba
->alpa_map
[j
];
4839 if (((vport
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0))
4841 lpfc_setup_disc_node(vport
, alpa
);
4844 /* No alpamap, so try all alpa's */
4845 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
4846 /* If cfg_scan_down is set, start from highest
4847 * ALPA (0xef) to lowest (0x1).
4849 if (vport
->cfg_scan_down
)
4852 index
= FC_MAXLOOP
- j
- 1;
4853 alpa
= lpfcAlpaArray
[index
];
4854 if ((vport
->fc_myDID
& 0xff) == alpa
)
4856 lpfc_setup_disc_node(vport
, alpa
);
4863 lpfc_issue_clear_la(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
4866 struct lpfc_sli
*psli
= &phba
->sli
;
4867 struct lpfc_sli_ring
*extra_ring
= &psli
->ring
[psli
->extra_ring
];
4868 struct lpfc_sli_ring
*fcp_ring
= &psli
->ring
[psli
->fcp_ring
];
4869 struct lpfc_sli_ring
*next_ring
= &psli
->ring
[psli
->next_ring
];
4873 * if it's not a physical port or if we already send
4874 * clear_la then don't send it.
4876 if ((phba
->link_state
>= LPFC_CLEAR_LA
) ||
4877 (vport
->port_type
!= LPFC_PHYSICAL_PORT
) ||
4878 (phba
->sli_rev
== LPFC_SLI_REV4
))
4881 /* Link up discovery */
4882 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
)) != NULL
) {
4883 phba
->link_state
= LPFC_CLEAR_LA
;
4884 lpfc_clear_la(phba
, mbox
);
4885 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
4886 mbox
->vport
= vport
;
4887 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4888 if (rc
== MBX_NOT_FINISHED
) {
4889 mempool_free(mbox
, phba
->mbox_mem_pool
);
4890 lpfc_disc_flush_list(vport
);
4891 extra_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
4892 fcp_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
4893 next_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
4894 phba
->link_state
= LPFC_HBA_ERROR
;
4899 /* Reg_vpi to tell firmware to resume normal operations */
4901 lpfc_issue_reg_vpi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
4903 LPFC_MBOXQ_t
*regvpimbox
;
4905 regvpimbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4907 lpfc_reg_vpi(vport
, regvpimbox
);
4908 regvpimbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vpi
;
4909 regvpimbox
->vport
= vport
;
4910 if (lpfc_sli_issue_mbox(phba
, regvpimbox
, MBX_NOWAIT
)
4911 == MBX_NOT_FINISHED
) {
4912 mempool_free(regvpimbox
, phba
->mbox_mem_pool
);
4917 /* Start Link up / RSCN discovery on NPR nodes */
4919 lpfc_disc_start(struct lpfc_vport
*vport
)
4921 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4922 struct lpfc_hba
*phba
= vport
->phba
;
4924 uint32_t clear_la_pending
;
4927 if (!lpfc_is_link_up(phba
))
4930 if (phba
->link_state
== LPFC_CLEAR_LA
)
4931 clear_la_pending
= 1;
4933 clear_la_pending
= 0;
4935 if (vport
->port_state
< LPFC_VPORT_READY
)
4936 vport
->port_state
= LPFC_DISC_AUTH
;
4938 lpfc_set_disctmo(vport
);
4940 if (vport
->fc_prevDID
== vport
->fc_myDID
)
4945 vport
->fc_prevDID
= vport
->fc_myDID
;
4946 vport
->num_disc_nodes
= 0;
4948 /* Start Discovery state <hba_state> */
4949 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4950 "0202 Start Discovery hba state x%x "
4951 "Data: x%x x%x x%x\n",
4952 vport
->port_state
, vport
->fc_flag
, vport
->fc_plogi_cnt
,
4953 vport
->fc_adisc_cnt
);
4955 /* First do ADISCs - if any */
4956 num_sent
= lpfc_els_disc_adisc(vport
);
4961 /* Register the VPI for SLI3, NON-NPIV only. */
4962 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
4963 !(vport
->fc_flag
& FC_PT2PT
) &&
4964 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
4965 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
4966 lpfc_issue_reg_vpi(phba
, vport
);
4971 * For SLI2, we need to set port_state to READY and continue
4974 if (vport
->port_state
< LPFC_VPORT_READY
&& !clear_la_pending
) {
4975 /* If we get here, there is nothing to ADISC */
4976 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
4977 lpfc_issue_clear_la(phba
, vport
);
4979 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
4980 vport
->num_disc_nodes
= 0;
4981 /* go thru NPR nodes and issue ELS PLOGIs */
4982 if (vport
->fc_npr_cnt
)
4983 lpfc_els_disc_plogi(vport
);
4985 if (!vport
->num_disc_nodes
) {
4986 spin_lock_irq(shost
->host_lock
);
4987 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
4988 spin_unlock_irq(shost
->host_lock
);
4989 lpfc_can_disctmo(vport
);
4992 vport
->port_state
= LPFC_VPORT_READY
;
4994 /* Next do PLOGIs - if any */
4995 num_sent
= lpfc_els_disc_plogi(vport
);
5000 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5001 /* Check to see if more RSCNs came in while we
5002 * were processing this one.
5004 if ((vport
->fc_rscn_id_cnt
== 0) &&
5005 (!(vport
->fc_flag
& FC_RSCN_DISCOVERY
))) {
5006 spin_lock_irq(shost
->host_lock
);
5007 vport
->fc_flag
&= ~FC_RSCN_MODE
;
5008 spin_unlock_irq(shost
->host_lock
);
5009 lpfc_can_disctmo(vport
);
5011 lpfc_els_handle_rscn(vport
);
5018 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5019 * ring the match the sppecified nodelist.
5022 lpfc_free_tx(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
5024 LIST_HEAD(completions
);
5025 struct lpfc_sli
*psli
;
5027 struct lpfc_iocbq
*iocb
, *next_iocb
;
5028 struct lpfc_sli_ring
*pring
;
5031 pring
= &psli
->ring
[LPFC_ELS_RING
];
5033 /* Error matching iocb on txq or txcmplq
5034 * First check the txq.
5036 spin_lock_irq(&phba
->hbalock
);
5037 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
5038 if (iocb
->context1
!= ndlp
) {
5042 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
5043 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
5045 list_move_tail(&iocb
->list
, &completions
);
5050 /* Next check the txcmplq */
5051 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
5052 if (iocb
->context1
!= ndlp
) {
5056 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
||
5057 icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
) {
5058 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
5061 spin_unlock_irq(&phba
->hbalock
);
5063 /* Cancel all the IOCBs from the completions list */
5064 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
5069 lpfc_disc_flush_list(struct lpfc_vport
*vport
)
5071 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5072 struct lpfc_hba
*phba
= vport
->phba
;
5074 if (vport
->fc_plogi_cnt
|| vport
->fc_adisc_cnt
) {
5075 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5077 if (!NLP_CHK_NODE_ACT(ndlp
))
5079 if (ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
5080 ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
) {
5081 lpfc_free_tx(phba
, ndlp
);
5088 lpfc_cleanup_discovery_resources(struct lpfc_vport
*vport
)
5090 lpfc_els_flush_rscn(vport
);
5091 lpfc_els_flush_cmd(vport
);
5092 lpfc_disc_flush_list(vport
);
5095 /*****************************************************************************/
5097 * NAME: lpfc_disc_timeout
5099 * FUNCTION: Fibre Channel driver discovery timeout routine.
5101 * EXECUTION ENVIRONMENT: interrupt only
5109 /*****************************************************************************/
5111 lpfc_disc_timeout(unsigned long ptr
)
5113 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
5114 struct lpfc_hba
*phba
= vport
->phba
;
5115 uint32_t tmo_posted
;
5116 unsigned long flags
= 0;
5118 if (unlikely(!phba
))
5121 spin_lock_irqsave(&vport
->work_port_lock
, flags
);
5122 tmo_posted
= vport
->work_port_events
& WORKER_DISC_TMO
;
5124 vport
->work_port_events
|= WORKER_DISC_TMO
;
5125 spin_unlock_irqrestore(&vport
->work_port_lock
, flags
);
5128 lpfc_worker_wake_up(phba
);
5133 lpfc_disc_timeout_handler(struct lpfc_vport
*vport
)
5135 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5136 struct lpfc_hba
*phba
= vport
->phba
;
5137 struct lpfc_sli
*psli
= &phba
->sli
;
5138 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5139 LPFC_MBOXQ_t
*initlinkmbox
;
5140 int rc
, clrlaerr
= 0;
5142 if (!(vport
->fc_flag
& FC_DISC_TMO
))
5145 spin_lock_irq(shost
->host_lock
);
5146 vport
->fc_flag
&= ~FC_DISC_TMO
;
5147 spin_unlock_irq(shost
->host_lock
);
5149 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5150 "disc timeout: state:x%x rtry:x%x flg:x%x",
5151 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
5153 switch (vport
->port_state
) {
5155 case LPFC_LOCAL_CFG_LINK
:
5156 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
5160 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_DISCOVERY
,
5161 "0221 FAN timeout\n");
5162 /* Start discovery by sending FLOGI, clean up old rpis */
5163 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5165 if (!NLP_CHK_NODE_ACT(ndlp
))
5167 if (ndlp
->nlp_state
!= NLP_STE_NPR_NODE
)
5169 if (ndlp
->nlp_type
& NLP_FABRIC
) {
5170 /* Clean up the ndlp on Fabric connections */
5171 lpfc_drop_node(vport
, ndlp
);
5173 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
5174 /* Fail outstanding IO now since device
5175 * is marked for PLOGI.
5177 lpfc_unreg_rpi(vport
, ndlp
);
5180 if (vport
->port_state
!= LPFC_FLOGI
) {
5181 if (phba
->sli_rev
<= LPFC_SLI_REV3
)
5182 lpfc_initial_flogi(vport
);
5184 lpfc_issue_init_vfi(vport
);
5191 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5192 /* Initial FLOGI timeout */
5193 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5194 "0222 Initial %s timeout\n",
5195 vport
->vpi
? "FDISC" : "FLOGI");
5197 /* Assume no Fabric and go on with discovery.
5198 * Check for outstanding ELS FLOGI to abort.
5201 /* FLOGI failed, so just use loop map to make discovery list */
5202 lpfc_disc_list_loopmap(vport
);
5204 /* Start discovery */
5205 lpfc_disc_start(vport
);
5208 case LPFC_FABRIC_CFG_LINK
:
5209 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5211 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5212 "0223 Timeout while waiting for "
5213 "NameServer login\n");
5214 /* Next look for NameServer ndlp */
5215 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5216 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5217 lpfc_els_abort(phba
, ndlp
);
5219 /* ReStart discovery */
5223 /* Check for wait for NameServer Rsp timeout */
5224 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5225 "0224 NameServer Query timeout "
5227 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5229 if (vport
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
5230 /* Try it one more time */
5231 vport
->fc_ns_retry
++;
5232 rc
= lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
,
5233 vport
->fc_ns_retry
, 0);
5237 vport
->fc_ns_retry
= 0;
5241 * Discovery is over.
5242 * set port_state to PORT_READY if SLI2.
5243 * cmpl_reg_vpi will set port_state to READY for SLI3.
5245 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5246 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5247 lpfc_issue_reg_vpi(phba
, vport
);
5249 lpfc_issue_clear_la(phba
, vport
);
5250 vport
->port_state
= LPFC_VPORT_READY
;
5254 /* Setup and issue mailbox INITIALIZE LINK command */
5255 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5256 if (!initlinkmbox
) {
5257 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5258 "0206 Device Discovery "
5259 "completion error\n");
5260 phba
->link_state
= LPFC_HBA_ERROR
;
5264 lpfc_linkdown(phba
);
5265 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
5266 phba
->cfg_link_speed
);
5267 initlinkmbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5268 initlinkmbox
->vport
= vport
;
5269 initlinkmbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5270 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
, MBX_NOWAIT
);
5271 lpfc_set_loopback_flag(phba
);
5272 if (rc
== MBX_NOT_FINISHED
)
5273 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
5277 case LPFC_DISC_AUTH
:
5278 /* Node Authentication timeout */
5279 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5280 "0227 Node Authentication timeout\n");
5281 lpfc_disc_flush_list(vport
);
5284 * set port_state to PORT_READY if SLI2.
5285 * cmpl_reg_vpi will set port_state to READY for SLI3.
5287 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5288 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5289 lpfc_issue_reg_vpi(phba
, vport
);
5290 else { /* NPIV Not enabled */
5291 lpfc_issue_clear_la(phba
, vport
);
5292 vport
->port_state
= LPFC_VPORT_READY
;
5297 case LPFC_VPORT_READY
:
5298 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5299 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5300 "0231 RSCN timeout Data: x%x "
5302 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5304 /* Cleanup any outstanding ELS commands */
5305 lpfc_els_flush_cmd(vport
);
5307 lpfc_els_flush_rscn(vport
);
5308 lpfc_disc_flush_list(vport
);
5313 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5314 "0273 Unexpected discovery timeout, "
5315 "vport State x%x\n", vport
->port_state
);
5319 switch (phba
->link_state
) {
5321 /* CLEAR LA timeout */
5322 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5323 "0228 CLEAR LA timeout\n");
5328 lpfc_issue_clear_la(phba
, vport
);
5330 case LPFC_LINK_UNKNOWN
:
5331 case LPFC_WARM_START
:
5332 case LPFC_INIT_START
:
5333 case LPFC_INIT_MBX_CMDS
:
5334 case LPFC_LINK_DOWN
:
5335 case LPFC_HBA_ERROR
:
5336 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5337 "0230 Unexpected timeout, hba link "
5338 "state x%x\n", phba
->link_state
);
5342 case LPFC_HBA_READY
:
5347 lpfc_disc_flush_list(vport
);
5348 psli
->ring
[(psli
->extra_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
5349 psli
->ring
[(psli
->fcp_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
5350 psli
->ring
[(psli
->next_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
5351 vport
->port_state
= LPFC_VPORT_READY
;
5358 * This routine handles processing a NameServer REG_LOGIN mailbox
5359 * command upon completion. It is setup in the LPFC_MBOXQ
5360 * as the completion routine when the command is
5361 * handed off to the SLI layer.
5364 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5366 MAILBOX_t
*mb
= &pmb
->u
.mb
;
5367 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
5368 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5369 struct lpfc_vport
*vport
= pmb
->vport
;
5371 pmb
->context1
= NULL
;
5372 pmb
->context2
= NULL
;
5374 if (phba
->sli_rev
< LPFC_SLI_REV4
)
5375 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
5376 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
5377 ndlp
->nlp_type
|= NLP_FABRIC
;
5378 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
5381 * Start issuing Fabric-Device Management Interface (FDMI) command to
5382 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5383 * fdmi-on=2 (supporting RPA/hostnmae)
5386 if (vport
->cfg_fdmi_on
== 1)
5387 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DHBA
);
5389 mod_timer(&vport
->fc_fdmitmo
, jiffies
+ HZ
* 60);
5391 /* decrement the node reference count held for this callback
5395 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
5397 mempool_free(pmb
, phba
->mbox_mem_pool
);
5403 lpfc_filter_by_rpi(struct lpfc_nodelist
*ndlp
, void *param
)
5405 uint16_t *rpi
= param
;
5407 /* check for active node */
5408 if (!NLP_CHK_NODE_ACT(ndlp
))
5411 return ndlp
->nlp_rpi
== *rpi
;
5415 lpfc_filter_by_wwpn(struct lpfc_nodelist
*ndlp
, void *param
)
5417 return memcmp(&ndlp
->nlp_portname
, param
,
5418 sizeof(ndlp
->nlp_portname
)) == 0;
5421 static struct lpfc_nodelist
*
5422 __lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
5424 struct lpfc_nodelist
*ndlp
;
5426 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5427 if (filter(ndlp
, param
)) {
5428 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5429 "3185 FIND node filter %p DID "
5430 "Data: x%p x%x x%x\n",
5431 filter
, ndlp
, ndlp
->nlp_DID
,
5436 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5437 "3186 FIND node filter %p NOT FOUND.\n", filter
);
5442 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5443 * returns the node list element pointer else return NULL.
5445 struct lpfc_nodelist
*
5446 __lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5448 return __lpfc_find_node(vport
, lpfc_filter_by_rpi
, &rpi
);
5452 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5453 * returns the node element list pointer else return NULL.
5455 struct lpfc_nodelist
*
5456 lpfc_findnode_wwpn(struct lpfc_vport
*vport
, struct lpfc_name
*wwpn
)
5458 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5459 struct lpfc_nodelist
*ndlp
;
5461 spin_lock_irq(shost
->host_lock
);
5462 ndlp
= __lpfc_find_node(vport
, lpfc_filter_by_wwpn
, wwpn
);
5463 spin_unlock_irq(shost
->host_lock
);
5468 * This routine looks up the ndlp lists for the given RPI. If the rpi
5469 * is found, the routine returns the node element list pointer else
5472 struct lpfc_nodelist
*
5473 lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5475 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5476 struct lpfc_nodelist
*ndlp
;
5478 spin_lock_irq(shost
->host_lock
);
5479 ndlp
= __lpfc_findnode_rpi(vport
, rpi
);
5480 spin_unlock_irq(shost
->host_lock
);
5485 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5486 * @phba: pointer to lpfc hba data structure.
5487 * @vpi: the physical host virtual N_Port identifier.
5489 * This routine finds a vport on a HBA (referred by @phba) through a
5490 * @vpi. The function walks the HBA's vport list and returns the address
5491 * of the vport with the matching @vpi.
5494 * NULL - No vport with the matching @vpi found
5495 * Otherwise - Address to the vport with the matching @vpi.
5498 lpfc_find_vport_by_vpid(struct lpfc_hba
*phba
, uint16_t vpi
)
5500 struct lpfc_vport
*vport
;
5501 unsigned long flags
;
5504 /* The physical ports are always vpi 0 - translate is unnecessary. */
5507 * Translate the physical vpi to the logical vpi. The
5508 * vport stores the logical vpi.
5510 for (i
= 0; i
< phba
->max_vpi
; i
++) {
5511 if (vpi
== phba
->vpi_ids
[i
])
5515 if (i
>= phba
->max_vpi
) {
5516 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
5517 "2936 Could not find Vport mapped "
5518 "to vpi %d\n", vpi
);
5523 spin_lock_irqsave(&phba
->hbalock
, flags
);
5524 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
5525 if (vport
->vpi
== i
) {
5526 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5530 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5535 lpfc_nlp_init(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5538 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
5540 lpfc_initialize_node(vport
, ndlp
, did
);
5541 INIT_LIST_HEAD(&ndlp
->nlp_listp
);
5543 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
5544 "node init: did:x%x",
5545 ndlp
->nlp_DID
, 0, 0);
5550 /* This routine releases all resources associated with a specifc NPort's ndlp
5551 * and mempool_free's the nodelist.
5554 lpfc_nlp_release(struct kref
*kref
)
5556 struct lpfc_hba
*phba
;
5557 unsigned long flags
;
5558 struct lpfc_nodelist
*ndlp
= container_of(kref
, struct lpfc_nodelist
,
5561 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5562 "node release: did:x%x flg:x%x type:x%x",
5563 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
5565 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
5566 "0279 lpfc_nlp_release: ndlp:x%p did %x "
5567 "usgmap:x%x refcnt:%d\n",
5568 (void *)ndlp
, ndlp
->nlp_DID
, ndlp
->nlp_usg_map
,
5569 atomic_read(&ndlp
->kref
.refcount
));
5571 /* remove ndlp from action. */
5572 lpfc_nlp_remove(ndlp
->vport
, ndlp
);
5574 /* clear the ndlp active flag for all release cases */
5576 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5577 NLP_CLR_NODE_ACT(ndlp
);
5578 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5579 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5580 lpfc_sli4_free_rpi(phba
, ndlp
->nlp_rpi
);
5582 /* free ndlp memory for final ndlp release */
5583 if (NLP_CHK_FREE_REQ(ndlp
)) {
5584 kfree(ndlp
->lat_data
);
5585 mempool_free(ndlp
, ndlp
->phba
->nlp_mem_pool
);
5589 /* This routine bumps the reference count for a ndlp structure to ensure
5590 * that one discovery thread won't free a ndlp while another discovery thread
5593 struct lpfc_nodelist
*
5594 lpfc_nlp_get(struct lpfc_nodelist
*ndlp
)
5596 struct lpfc_hba
*phba
;
5597 unsigned long flags
;
5600 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5601 "node get: did:x%x flg:x%x refcnt:x%x",
5602 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5603 atomic_read(&ndlp
->kref
.refcount
));
5604 /* The check of ndlp usage to prevent incrementing the
5605 * ndlp reference count that is in the process of being
5609 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5610 if (!NLP_CHK_NODE_ACT(ndlp
) || NLP_CHK_FREE_ACK(ndlp
)) {
5611 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5612 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5613 "0276 lpfc_nlp_get: ndlp:x%p "
5614 "usgmap:x%x refcnt:%d\n",
5615 (void *)ndlp
, ndlp
->nlp_usg_map
,
5616 atomic_read(&ndlp
->kref
.refcount
));
5619 kref_get(&ndlp
->kref
);
5620 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5625 /* This routine decrements the reference count for a ndlp structure. If the
5626 * count goes to 0, this indicates the the associated nodelist should be
5627 * freed. Returning 1 indicates the ndlp resource has been released; on the
5628 * other hand, returning 0 indicates the ndlp resource has not been released
5632 lpfc_nlp_put(struct lpfc_nodelist
*ndlp
)
5634 struct lpfc_hba
*phba
;
5635 unsigned long flags
;
5640 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5641 "node put: did:x%x flg:x%x refcnt:x%x",
5642 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5643 atomic_read(&ndlp
->kref
.refcount
));
5645 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5646 /* Check the ndlp memory free acknowledge flag to avoid the
5647 * possible race condition that kref_put got invoked again
5648 * after previous one has done ndlp memory free.
5650 if (NLP_CHK_FREE_ACK(ndlp
)) {
5651 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5652 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5653 "0274 lpfc_nlp_put: ndlp:x%p "
5654 "usgmap:x%x refcnt:%d\n",
5655 (void *)ndlp
, ndlp
->nlp_usg_map
,
5656 atomic_read(&ndlp
->kref
.refcount
));
5659 /* Check the ndlp inactivate log flag to avoid the possible
5660 * race condition that kref_put got invoked again after ndlp
5661 * is already in inactivating state.
5663 if (NLP_CHK_IACT_REQ(ndlp
)) {
5664 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5665 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5666 "0275 lpfc_nlp_put: ndlp:x%p "
5667 "usgmap:x%x refcnt:%d\n",
5668 (void *)ndlp
, ndlp
->nlp_usg_map
,
5669 atomic_read(&ndlp
->kref
.refcount
));
5672 /* For last put, mark the ndlp usage flags to make sure no
5673 * other kref_get and kref_put on the same ndlp shall get
5674 * in between the process when the final kref_put has been
5675 * invoked on this ndlp.
5677 if (atomic_read(&ndlp
->kref
.refcount
) == 1) {
5678 /* Indicate ndlp is put to inactive state. */
5679 NLP_SET_IACT_REQ(ndlp
);
5680 /* Acknowledge ndlp memory free has been seen. */
5681 if (NLP_CHK_FREE_REQ(ndlp
))
5682 NLP_SET_FREE_ACK(ndlp
);
5684 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5685 /* Note, the kref_put returns 1 when decrementing a reference
5686 * count that was 1, it invokes the release callback function,
5687 * but it still left the reference count as 1 (not actually
5688 * performs the last decrementation). Otherwise, it actually
5689 * decrements the reference count and returns 0.
5691 return kref_put(&ndlp
->kref
, lpfc_nlp_release
);
5694 /* This routine free's the specified nodelist if it is not in use
5695 * by any other discovery thread. This routine returns 1 if the
5696 * ndlp has been freed. A return value of 0 indicates the ndlp is
5697 * not yet been released.
5700 lpfc_nlp_not_used(struct lpfc_nodelist
*ndlp
)
5702 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5703 "node not used: did:x%x flg:x%x refcnt:x%x",
5704 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5705 atomic_read(&ndlp
->kref
.refcount
));
5706 if (atomic_read(&ndlp
->kref
.refcount
) == 1)
5707 if (lpfc_nlp_put(ndlp
))
5713 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5714 * @phba: Pointer to hba context object.
5716 * This function iterate through all FC nodes associated
5717 * will all vports to check if there is any node with
5718 * fc_rports associated with it. If there is an fc_rport
5719 * associated with the node, then the node is either in
5720 * discovered state or its devloss_timer is pending.
5723 lpfc_fcf_inuse(struct lpfc_hba
*phba
)
5725 struct lpfc_vport
**vports
;
5727 struct lpfc_nodelist
*ndlp
;
5728 struct Scsi_Host
*shost
;
5730 vports
= lpfc_create_vport_work_array(phba
);
5732 /* If driver cannot allocate memory, indicate fcf is in use */
5736 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
5737 shost
= lpfc_shost_from_vport(vports
[i
]);
5738 spin_lock_irq(shost
->host_lock
);
5740 * IF the CVL_RCVD bit is not set then we have sent the
5742 * If dev_loss fires while we are waiting we do not want to
5745 if (!(vports
[i
]->fc_flag
& FC_VPORT_CVL_RCVD
)) {
5746 spin_unlock_irq(shost
->host_lock
);
5750 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
5751 if (NLP_CHK_NODE_ACT(ndlp
) && ndlp
->rport
&&
5752 (ndlp
->rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)) {
5754 spin_unlock_irq(shost
->host_lock
);
5756 } else if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
5758 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
5759 "2624 RPI %x DID %x flag %x "
5760 "still logged in\n",
5761 ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
5765 spin_unlock_irq(shost
->host_lock
);
5768 lpfc_destroy_vport_work_array(phba
, vports
);
5773 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5774 * @phba: Pointer to hba context object.
5775 * @mboxq: Pointer to mailbox object.
5777 * This function frees memory associated with the mailbox command.
5780 lpfc_unregister_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5782 struct lpfc_vport
*vport
= mboxq
->vport
;
5783 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5785 if (mboxq
->u
.mb
.mbxStatus
) {
5786 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5787 "2555 UNREG_VFI mbxStatus error x%x "
5789 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
5791 spin_lock_irq(shost
->host_lock
);
5792 phba
->pport
->fc_flag
&= ~FC_VFI_REGISTERED
;
5793 spin_unlock_irq(shost
->host_lock
);
5794 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5799 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5800 * @phba: Pointer to hba context object.
5801 * @mboxq: Pointer to mailbox object.
5803 * This function frees memory associated with the mailbox command.
5806 lpfc_unregister_fcfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5808 struct lpfc_vport
*vport
= mboxq
->vport
;
5810 if (mboxq
->u
.mb
.mbxStatus
) {
5811 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5812 "2550 UNREG_FCFI mbxStatus error x%x "
5814 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
5816 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5821 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
5822 * @phba: Pointer to hba context object.
5824 * This function prepare the HBA for unregistering the currently registered
5825 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5829 lpfc_unregister_fcf_prep(struct lpfc_hba
*phba
)
5831 struct lpfc_vport
**vports
;
5832 struct lpfc_nodelist
*ndlp
;
5833 struct Scsi_Host
*shost
;
5836 /* Unregister RPIs */
5837 if (lpfc_fcf_inuse(phba
))
5838 lpfc_unreg_hba_rpis(phba
);
5840 /* At this point, all discovery is aborted */
5841 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
5843 /* Unregister VPIs */
5844 vports
= lpfc_create_vport_work_array(phba
);
5845 if (vports
&& (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))
5846 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
5847 /* Stop FLOGI/FDISC retries */
5848 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
5850 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
5851 lpfc_cleanup_pending_mbox(vports
[i
]);
5852 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5853 lpfc_sli4_unreg_all_rpis(vports
[i
]);
5854 lpfc_mbx_unreg_vpi(vports
[i
]);
5855 shost
= lpfc_shost_from_vport(vports
[i
]);
5856 spin_lock_irq(shost
->host_lock
);
5857 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
5858 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
5859 spin_unlock_irq(shost
->host_lock
);
5861 lpfc_destroy_vport_work_array(phba
, vports
);
5863 /* Cleanup any outstanding ELS commands */
5864 lpfc_els_flush_all_cmd(phba
);
5866 /* Unregister the physical port VFI */
5867 rc
= lpfc_issue_unreg_vfi(phba
->pport
);
5872 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5873 * @phba: Pointer to hba context object.
5875 * This function issues synchronous unregister FCF mailbox command to HBA to
5876 * unregister the currently registered FCF record. The driver does not reset
5877 * the driver FCF usage state flags.
5879 * Return 0 if successfully issued, none-zero otherwise.
5882 lpfc_sli4_unregister_fcf(struct lpfc_hba
*phba
)
5887 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5889 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5890 "2551 UNREG_FCFI mbox allocation failed"
5891 "HBA state x%x\n", phba
->pport
->port_state
);
5894 lpfc_unreg_fcfi(mbox
, phba
->fcf
.fcfi
);
5895 mbox
->vport
= phba
->pport
;
5896 mbox
->mbox_cmpl
= lpfc_unregister_fcfi_cmpl
;
5897 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5899 if (rc
== MBX_NOT_FINISHED
) {
5900 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5901 "2552 Unregister FCFI command failed rc x%x "
5903 rc
, phba
->pport
->port_state
);
5910 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
5911 * @phba: Pointer to hba context object.
5913 * This function unregisters the currently reigstered FCF. This function
5914 * also tries to find another FCF for discovery by rescan the HBA FCF table.
5917 lpfc_unregister_fcf_rescan(struct lpfc_hba
*phba
)
5921 /* Preparation for unregistering fcf */
5922 rc
= lpfc_unregister_fcf_prep(phba
);
5924 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
5925 "2748 Failed to prepare for unregistering "
5926 "HBA's FCF record: rc=%d\n", rc
);
5930 /* Now, unregister FCF record and reset HBA FCF state */
5931 rc
= lpfc_sli4_unregister_fcf(phba
);
5934 /* Reset HBA FCF states after successful unregister FCF */
5935 phba
->fcf
.fcf_flag
= 0;
5936 phba
->fcf
.current_rec
.flag
= 0;
5939 * If driver is not unloading, check if there is any other
5940 * FCF record that can be used for discovery.
5942 if ((phba
->pport
->load_flag
& FC_UNLOADING
) ||
5943 (phba
->link_state
< LPFC_LINK_UP
))
5946 /* This is considered as the initial FCF discovery scan */
5947 spin_lock_irq(&phba
->hbalock
);
5948 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
5949 spin_unlock_irq(&phba
->hbalock
);
5951 /* Reset FCF roundrobin bmask for new discovery */
5952 lpfc_sli4_clear_fcf_rr_bmask(phba
);
5954 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
5957 spin_lock_irq(&phba
->hbalock
);
5958 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
5959 spin_unlock_irq(&phba
->hbalock
);
5960 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
5961 "2553 lpfc_unregister_unused_fcf failed "
5962 "to read FCF record HBA state x%x\n",
5963 phba
->pport
->port_state
);
5968 * lpfc_unregister_fcf - Unregister the currently registered fcf record
5969 * @phba: Pointer to hba context object.
5971 * This function just unregisters the currently reigstered FCF. It does not
5972 * try to find another FCF for discovery.
5975 lpfc_unregister_fcf(struct lpfc_hba
*phba
)
5979 /* Preparation for unregistering fcf */
5980 rc
= lpfc_unregister_fcf_prep(phba
);
5982 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
5983 "2749 Failed to prepare for unregistering "
5984 "HBA's FCF record: rc=%d\n", rc
);
5988 /* Now, unregister FCF record and reset HBA FCF state */
5989 rc
= lpfc_sli4_unregister_fcf(phba
);
5992 /* Set proper HBA FCF states after successful unregister FCF */
5993 spin_lock_irq(&phba
->hbalock
);
5994 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
5995 spin_unlock_irq(&phba
->hbalock
);
5999 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6000 * @phba: Pointer to hba context object.
6002 * This function check if there are any connected remote port for the FCF and
6003 * if all the devices are disconnected, this function unregister FCFI.
6004 * This function also tries to use another FCF for discovery.
6007 lpfc_unregister_unused_fcf(struct lpfc_hba
*phba
)
6010 * If HBA is not running in FIP mode, if HBA does not support
6011 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6012 * registered, do nothing.
6014 spin_lock_irq(&phba
->hbalock
);
6015 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) ||
6016 !(phba
->fcf
.fcf_flag
& FCF_REGISTERED
) ||
6017 !(phba
->hba_flag
& HBA_FIP_SUPPORT
) ||
6018 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) ||
6019 (phba
->pport
->port_state
== LPFC_FLOGI
)) {
6020 spin_unlock_irq(&phba
->hbalock
);
6023 spin_unlock_irq(&phba
->hbalock
);
6025 if (lpfc_fcf_inuse(phba
))
6028 lpfc_unregister_fcf_rescan(phba
);
6032 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6033 * @phba: Pointer to hba context object.
6034 * @buff: Buffer containing the FCF connection table as in the config
6036 * This function create driver data structure for the FCF connection
6037 * record table read from config region 23.
6040 lpfc_read_fcf_conn_tbl(struct lpfc_hba
*phba
,
6043 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
6044 struct lpfc_fcf_conn_hdr
*conn_hdr
;
6045 struct lpfc_fcf_conn_rec
*conn_rec
;
6046 uint32_t record_count
;
6049 /* Free the current connect table */
6050 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
6051 &phba
->fcf_conn_rec_list
, list
) {
6052 list_del_init(&conn_entry
->list
);
6056 conn_hdr
= (struct lpfc_fcf_conn_hdr
*) buff
;
6057 record_count
= conn_hdr
->length
* sizeof(uint32_t)/
6058 sizeof(struct lpfc_fcf_conn_rec
);
6060 conn_rec
= (struct lpfc_fcf_conn_rec
*)
6061 (buff
+ sizeof(struct lpfc_fcf_conn_hdr
));
6063 for (i
= 0; i
< record_count
; i
++) {
6064 if (!(conn_rec
[i
].flags
& FCFCNCT_VALID
))
6066 conn_entry
= kzalloc(sizeof(struct lpfc_fcf_conn_entry
),
6069 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6070 "2566 Failed to allocate connection"
6075 memcpy(&conn_entry
->conn_rec
, &conn_rec
[i
],
6076 sizeof(struct lpfc_fcf_conn_rec
));
6077 conn_entry
->conn_rec
.vlan_tag
=
6078 le16_to_cpu(conn_entry
->conn_rec
.vlan_tag
) & 0xFFF;
6079 conn_entry
->conn_rec
.flags
=
6080 le16_to_cpu(conn_entry
->conn_rec
.flags
);
6081 list_add_tail(&conn_entry
->list
,
6082 &phba
->fcf_conn_rec_list
);
6087 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6088 * @phba: Pointer to hba context object.
6089 * @buff: Buffer containing the FCoE parameter data structure.
6091 * This function update driver data structure with config
6092 * parameters read from config region 23.
6095 lpfc_read_fcoe_param(struct lpfc_hba
*phba
,
6098 struct lpfc_fip_param_hdr
*fcoe_param_hdr
;
6099 struct lpfc_fcoe_params
*fcoe_param
;
6101 fcoe_param_hdr
= (struct lpfc_fip_param_hdr
*)
6103 fcoe_param
= (struct lpfc_fcoe_params
*)
6104 (buff
+ sizeof(struct lpfc_fip_param_hdr
));
6106 if ((fcoe_param_hdr
->parm_version
!= FIPP_VERSION
) ||
6107 (fcoe_param_hdr
->length
!= FCOE_PARAM_LENGTH
))
6110 if (fcoe_param_hdr
->parm_flags
& FIPP_VLAN_VALID
) {
6111 phba
->valid_vlan
= 1;
6112 phba
->vlan_id
= le16_to_cpu(fcoe_param
->vlan_tag
) &
6116 phba
->fc_map
[0] = fcoe_param
->fc_map
[0];
6117 phba
->fc_map
[1] = fcoe_param
->fc_map
[1];
6118 phba
->fc_map
[2] = fcoe_param
->fc_map
[2];
6123 * lpfc_get_rec_conf23 - Get a record type in config region data.
6124 * @buff: Buffer containing config region 23 data.
6125 * @size: Size of the data buffer.
6126 * @rec_type: Record type to be searched.
6128 * This function searches config region data to find the beginning
6129 * of the record specified by record_type. If record found, this
6130 * function return pointer to the record else return NULL.
6133 lpfc_get_rec_conf23(uint8_t *buff
, uint32_t size
, uint8_t rec_type
)
6135 uint32_t offset
= 0, rec_length
;
6137 if ((buff
[0] == LPFC_REGION23_LAST_REC
) ||
6138 (size
< sizeof(uint32_t)))
6141 rec_length
= buff
[offset
+ 1];
6144 * One TLV record has one word header and number of data words
6145 * specified in the rec_length field of the record header.
6147 while ((offset
+ rec_length
* sizeof(uint32_t) + sizeof(uint32_t))
6149 if (buff
[offset
] == rec_type
)
6150 return &buff
[offset
];
6152 if (buff
[offset
] == LPFC_REGION23_LAST_REC
)
6155 offset
+= rec_length
* sizeof(uint32_t) + sizeof(uint32_t);
6156 rec_length
= buff
[offset
+ 1];
6162 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6163 * @phba: Pointer to lpfc_hba data structure.
6164 * @buff: Buffer containing config region 23 data.
6165 * @size: Size of the data buffer.
6167 * This function parses the FCoE config parameters in config region 23 and
6168 * populate driver data structure with the parameters.
6171 lpfc_parse_fcoe_conf(struct lpfc_hba
*phba
,
6175 uint32_t offset
= 0, rec_length
;
6179 * If data size is less than 2 words signature and version cannot be
6182 if (size
< 2*sizeof(uint32_t))
6185 /* Check the region signature first */
6186 if (memcmp(buff
, LPFC_REGION23_SIGNATURE
, 4)) {
6187 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6188 "2567 Config region 23 has bad signature\n");
6194 /* Check the data structure version */
6195 if (buff
[offset
] != LPFC_REGION23_VERSION
) {
6196 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6197 "2568 Config region 23 has bad version\n");
6202 rec_length
= buff
[offset
+ 1];
6204 /* Read FCoE param record */
6205 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6206 size
- offset
, FCOE_PARAM_TYPE
);
6208 lpfc_read_fcoe_param(phba
, rec_ptr
);
6210 /* Read FCF connection table */
6211 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6212 size
- offset
, FCOE_CONN_TBL_TYPE
);
6214 lpfc_read_fcf_conn_tbl(phba
, rec_ptr
);