1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/pci.h>
28 #include <linux/kthread.h>
29 #include <linux/interrupt.h>
30 #include <linux/lockdep.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
38 #include <linux/nvme-fc-driver.h>
43 #include "lpfc_disc.h"
45 #include "lpfc_sli4.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc_nvme.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_crtn.h"
51 #include "lpfc_vport.h"
52 #include "lpfc_debugfs.h"
54 /* AlpaArray for assignment of scsid for scan-down and bind_method */
55 static uint8_t lpfcAlpaArray
[] = {
56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
71 static void lpfc_disc_timeout_handler(struct lpfc_vport
*);
72 static void lpfc_disc_flush_list(struct lpfc_vport
*vport
);
73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba
*, LPFC_MBOXQ_t
*);
74 static int lpfc_fcf_inuse(struct lpfc_hba
*);
77 lpfc_terminate_rport_io(struct fc_rport
*rport
)
79 struct lpfc_rport_data
*rdata
;
80 struct lpfc_nodelist
* ndlp
;
81 struct lpfc_hba
*phba
;
83 rdata
= rport
->dd_data
;
86 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
87 if (rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)
88 printk(KERN_ERR
"Cannot find remote node"
89 " to terminate I/O Data x%x\n",
96 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
97 "rport terminate: sid:x%x did:x%x flg:x%x",
98 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
100 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
101 lpfc_sli_abort_iocb(ndlp
->vport
,
102 &phba
->sli
.sli3_ring
[LPFC_FCP_RING
],
103 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
108 * This function will be called when dev_loss_tmo fire.
111 lpfc_dev_loss_tmo_callbk(struct fc_rport
*rport
)
113 struct lpfc_rport_data
*rdata
;
114 struct lpfc_nodelist
* ndlp
;
115 struct lpfc_vport
*vport
;
116 struct Scsi_Host
*shost
;
117 struct lpfc_hba
*phba
;
118 struct lpfc_work_evt
*evtp
;
122 rdata
= rport
->dd_data
;
124 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
130 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
131 "rport devlosscb: sid:x%x did:x%x flg:x%x",
132 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
134 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
136 ndlp
->nlp_DID
, ndlp
->rport
, ndlp
->nlp_flag
);
138 /* Don't defer this if we are in the process of deleting the vport
139 * or unloading the driver. The unload will cleanup the node
140 * appropriately we just need to cleanup the ndlp rport info here.
142 if (vport
->load_flag
& FC_UNLOADING
) {
143 put_node
= rdata
->pnode
!= NULL
;
144 put_rport
= ndlp
->rport
!= NULL
;
150 put_device(&rport
->dev
);
154 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)
157 if (rport
->port_name
!= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
))
158 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
159 "6789 rport name %llx != node port name %llx",
161 wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
));
163 evtp
= &ndlp
->dev_loss_evt
;
165 if (!list_empty(&evtp
->evt_listp
)) {
166 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
167 "6790 rport name %llx dev_loss_evt pending",
172 shost
= lpfc_shost_from_vport(vport
);
173 spin_lock_irq(shost
->host_lock
);
174 ndlp
->nlp_flag
|= NLP_IN_DEV_LOSS
;
175 spin_unlock_irq(shost
->host_lock
);
177 /* We need to hold the node by incrementing the reference
178 * count until this queued work is done
180 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
182 spin_lock_irq(&phba
->hbalock
);
183 if (evtp
->evt_arg1
) {
184 evtp
->evt
= LPFC_EVT_DEV_LOSS
;
185 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
186 lpfc_worker_wake_up(phba
);
188 spin_unlock_irq(&phba
->hbalock
);
194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
195 * @ndlp: Pointer to remote node object.
197 * This function is called from the worker thread when devloss timeout timer
198 * expires. For SLI4 host, this routine shall return 1 when at lease one
199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
200 * routine shall return 0 when there is no remote node is still in use of FCF
201 * when devloss timeout happened to this @ndlp.
204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist
*ndlp
)
206 struct lpfc_rport_data
*rdata
;
207 struct fc_rport
*rport
;
208 struct lpfc_vport
*vport
;
209 struct lpfc_hba
*phba
;
210 struct Scsi_Host
*shost
;
218 shost
= lpfc_shost_from_vport(vport
);
220 spin_lock_irq(shost
->host_lock
);
221 ndlp
->nlp_flag
&= ~NLP_IN_DEV_LOSS
;
222 spin_unlock_irq(shost
->host_lock
);
227 name
= (uint8_t *) &ndlp
->nlp_portname
;
230 if (phba
->sli_rev
== LPFC_SLI_REV4
)
231 fcf_inuse
= lpfc_fcf_inuse(phba
);
233 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
234 "rport devlosstmo:did:x%x type:x%x id:x%x",
235 ndlp
->nlp_DID
, ndlp
->nlp_type
, rport
->scsi_target_id
);
237 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
239 ndlp
->nlp_DID
, ndlp
->rport
, ndlp
->nlp_flag
);
242 * lpfc_nlp_remove if reached with dangling rport drops the
243 * reference. To make sure that does not happen clear rport
244 * pointer in ndlp before lpfc_nlp_put.
246 rdata
= rport
->dd_data
;
248 /* Don't defer this if we are in the process of deleting the vport
249 * or unloading the driver. The unload will cleanup the node
250 * appropriately we just need to cleanup the ndlp rport info here.
252 if (vport
->load_flag
& FC_UNLOADING
) {
253 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
254 /* flush the target */
255 lpfc_sli_abort_iocb(vport
,
256 &phba
->sli
.sli3_ring
[LPFC_FCP_RING
],
257 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
259 put_node
= rdata
->pnode
!= NULL
;
264 put_device(&rport
->dev
);
269 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
) {
270 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
271 "0284 Devloss timeout Ignored on "
272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
274 *name
, *(name
+1), *(name
+2), *(name
+3),
275 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
280 put_node
= rdata
->pnode
!= NULL
;
285 put_device(&rport
->dev
);
287 if (ndlp
->nlp_type
& NLP_FABRIC
)
290 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
292 lpfc_sli_abort_iocb(vport
, &phba
->sli
.sli3_ring
[LPFC_FCP_RING
],
293 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
297 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
298 "0203 Devloss timeout on "
299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
300 "NPort x%06x Data: x%x x%x x%x\n",
301 *name
, *(name
+1), *(name
+2), *(name
+3),
302 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
303 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
304 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
306 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
307 "0204 Devloss timeout on "
308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
309 "NPort x%06x Data: x%x x%x x%x\n",
310 *name
, *(name
+1), *(name
+2), *(name
+3),
311 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
312 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
313 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
316 if (!(ndlp
->nlp_flag
& NLP_DELAY_TMO
) &&
317 !(ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) &&
318 (ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
) &&
319 (ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) &&
320 (ndlp
->nlp_state
!= NLP_STE_PRLI_ISSUE
))
321 lpfc_disc_state_machine(vport
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
328 * @phba: Pointer to hba context object.
329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
330 * @nlp_did: remote node identifer with devloss timeout.
332 * This function is called from the worker thread after invoking devloss
333 * timeout handler and releasing the reference count for the ndlp with
334 * which the devloss timeout was handled for SLI4 host. For the devloss
335 * timeout of the last remote node which had been in use of FCF, when this
336 * routine is invoked, it shall be guaranteed that none of the remote are
337 * in-use of FCF. When devloss timeout to the last remote using the FCF,
338 * if the FIP engine is neither in FCF table scan process nor roundrobin
339 * failover process, the in-use FCF shall be unregistered. If the FIP
340 * engine is in FCF discovery process, the devloss timeout state shall
341 * be set for either the FCF table scan process or roundrobin failover
342 * process to unregister the in-use FCF.
345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba
*phba
, int fcf_inuse
,
348 /* If devloss timeout happened to a remote node when FCF had no
349 * longer been in-use, do nothing.
354 if ((phba
->hba_flag
& HBA_FIP_SUPPORT
) && !lpfc_fcf_inuse(phba
)) {
355 spin_lock_irq(&phba
->hbalock
);
356 if (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) {
357 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
358 spin_unlock_irq(&phba
->hbalock
);
361 phba
->hba_flag
|= HBA_DEVLOSS_TMO
;
362 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
363 "2847 Last remote node (x%x) using "
364 "FCF devloss tmo\n", nlp_did
);
366 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PROG
) {
367 spin_unlock_irq(&phba
->hbalock
);
368 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
369 "2868 Devloss tmo to FCF rediscovery "
373 if (!(phba
->hba_flag
& (FCF_TS_INPROG
| FCF_RR_INPROG
))) {
374 spin_unlock_irq(&phba
->hbalock
);
375 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
376 "2869 Devloss tmo to idle FIP engine, "
377 "unreg in-use FCF and rescan.\n");
378 /* Unregister in-use FCF and rescan */
379 lpfc_unregister_fcf_rescan(phba
);
382 spin_unlock_irq(&phba
->hbalock
);
383 if (phba
->hba_flag
& FCF_TS_INPROG
)
384 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
385 "2870 FCF table scan in progress\n");
386 if (phba
->hba_flag
& FCF_RR_INPROG
)
387 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
388 "2871 FLOGI roundrobin FCF failover "
391 lpfc_unregister_unused_fcf(phba
);
395 * lpfc_alloc_fast_evt - Allocates data structure for posting event
396 * @phba: Pointer to hba context object.
398 * This function is called from the functions which need to post
399 * events from interrupt context. This function allocates data
400 * structure required for posting event. It also keeps track of
401 * number of events pending and prevent event storm when there are
404 struct lpfc_fast_path_event
*
405 lpfc_alloc_fast_evt(struct lpfc_hba
*phba
) {
406 struct lpfc_fast_path_event
*ret
;
408 /* If there are lot of fast event do not exhaust memory due to this */
409 if (atomic_read(&phba
->fast_event_count
) > LPFC_MAX_EVT_COUNT
)
412 ret
= kzalloc(sizeof(struct lpfc_fast_path_event
),
415 atomic_inc(&phba
->fast_event_count
);
416 INIT_LIST_HEAD(&ret
->work_evt
.evt_listp
);
417 ret
->work_evt
.evt
= LPFC_EVT_FASTPATH_MGMT_EVT
;
423 * lpfc_free_fast_evt - Frees event data structure
424 * @phba: Pointer to hba context object.
425 * @evt: Event object which need to be freed.
427 * This function frees the data structure required for posting
431 lpfc_free_fast_evt(struct lpfc_hba
*phba
,
432 struct lpfc_fast_path_event
*evt
) {
434 atomic_dec(&phba
->fast_event_count
);
439 * lpfc_send_fastpath_evt - Posts events generated from fast path
440 * @phba: Pointer to hba context object.
441 * @evtp: Event data structure.
443 * This function is called from worker thread, when the interrupt
444 * context need to post an event. This function posts the event
445 * to fc transport netlink interface.
448 lpfc_send_fastpath_evt(struct lpfc_hba
*phba
,
449 struct lpfc_work_evt
*evtp
)
451 unsigned long evt_category
, evt_sub_category
;
452 struct lpfc_fast_path_event
*fast_evt_data
;
454 uint32_t evt_data_size
;
455 struct Scsi_Host
*shost
;
457 fast_evt_data
= container_of(evtp
, struct lpfc_fast_path_event
,
460 evt_category
= (unsigned long) fast_evt_data
->un
.fabric_evt
.event_type
;
461 evt_sub_category
= (unsigned long) fast_evt_data
->un
.
462 fabric_evt
.subcategory
;
463 shost
= lpfc_shost_from_vport(fast_evt_data
->vport
);
464 if (evt_category
== FC_REG_FABRIC_EVENT
) {
465 if (evt_sub_category
== LPFC_EVENT_FCPRDCHKERR
) {
466 evt_data
= (char *) &fast_evt_data
->un
.read_check_error
;
467 evt_data_size
= sizeof(fast_evt_data
->un
.
469 } else if ((evt_sub_category
== LPFC_EVENT_FABRIC_BUSY
) ||
470 (evt_sub_category
== LPFC_EVENT_PORT_BUSY
)) {
471 evt_data
= (char *) &fast_evt_data
->un
.fabric_evt
;
472 evt_data_size
= sizeof(fast_evt_data
->un
.fabric_evt
);
474 lpfc_free_fast_evt(phba
, fast_evt_data
);
477 } else if (evt_category
== FC_REG_SCSI_EVENT
) {
478 switch (evt_sub_category
) {
479 case LPFC_EVENT_QFULL
:
480 case LPFC_EVENT_DEVBSY
:
481 evt_data
= (char *) &fast_evt_data
->un
.scsi_evt
;
482 evt_data_size
= sizeof(fast_evt_data
->un
.scsi_evt
);
484 case LPFC_EVENT_CHECK_COND
:
485 evt_data
= (char *) &fast_evt_data
->un
.check_cond_evt
;
486 evt_data_size
= sizeof(fast_evt_data
->un
.
489 case LPFC_EVENT_VARQUEDEPTH
:
490 evt_data
= (char *) &fast_evt_data
->un
.queue_depth_evt
;
491 evt_data_size
= sizeof(fast_evt_data
->un
.
495 lpfc_free_fast_evt(phba
, fast_evt_data
);
499 lpfc_free_fast_evt(phba
, fast_evt_data
);
503 if (phba
->cfg_enable_fc4_type
!= LPFC_ENABLE_NVME
)
504 fc_host_post_vendor_event(shost
,
505 fc_get_event_number(),
510 lpfc_free_fast_evt(phba
, fast_evt_data
);
515 lpfc_work_list_done(struct lpfc_hba
*phba
)
517 struct lpfc_work_evt
*evtp
= NULL
;
518 struct lpfc_nodelist
*ndlp
;
523 spin_lock_irq(&phba
->hbalock
);
524 while (!list_empty(&phba
->work_list
)) {
525 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
527 spin_unlock_irq(&phba
->hbalock
);
530 case LPFC_EVT_ELS_RETRY
:
531 ndlp
= (struct lpfc_nodelist
*) (evtp
->evt_arg1
);
532 lpfc_els_retry_delay_handler(ndlp
);
533 free_evt
= 0; /* evt is part of ndlp */
534 /* decrement the node reference count held
535 * for this queued work
539 case LPFC_EVT_DEV_LOSS
:
540 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
541 fcf_inuse
= lpfc_dev_loss_tmo_handler(ndlp
);
543 /* decrement the node reference count held for
546 nlp_did
= ndlp
->nlp_DID
;
548 if (phba
->sli_rev
== LPFC_SLI_REV4
)
549 lpfc_sli4_post_dev_loss_tmo_handler(phba
,
553 case LPFC_EVT_ONLINE
:
554 if (phba
->link_state
< LPFC_LINK_DOWN
)
555 *(int *) (evtp
->evt_arg1
) = lpfc_online(phba
);
557 *(int *) (evtp
->evt_arg1
) = 0;
558 complete((struct completion
*)(evtp
->evt_arg2
));
560 case LPFC_EVT_OFFLINE_PREP
:
561 if (phba
->link_state
>= LPFC_LINK_DOWN
)
562 lpfc_offline_prep(phba
, LPFC_MBX_WAIT
);
563 *(int *)(evtp
->evt_arg1
) = 0;
564 complete((struct completion
*)(evtp
->evt_arg2
));
566 case LPFC_EVT_OFFLINE
:
568 lpfc_sli_brdrestart(phba
);
569 *(int *)(evtp
->evt_arg1
) =
570 lpfc_sli_brdready(phba
, HS_FFRDY
| HS_MBRDY
);
571 lpfc_unblock_mgmt_io(phba
);
572 complete((struct completion
*)(evtp
->evt_arg2
));
574 case LPFC_EVT_WARM_START
:
576 lpfc_reset_barrier(phba
);
577 lpfc_sli_brdreset(phba
);
578 lpfc_hba_down_post(phba
);
579 *(int *)(evtp
->evt_arg1
) =
580 lpfc_sli_brdready(phba
, HS_MBRDY
);
581 lpfc_unblock_mgmt_io(phba
);
582 complete((struct completion
*)(evtp
->evt_arg2
));
586 *(int *)(evtp
->evt_arg1
)
587 = (phba
->pport
->stopped
)
588 ? 0 : lpfc_sli_brdkill(phba
);
589 lpfc_unblock_mgmt_io(phba
);
590 complete((struct completion
*)(evtp
->evt_arg2
));
592 case LPFC_EVT_FASTPATH_MGMT_EVT
:
593 lpfc_send_fastpath_evt(phba
, evtp
);
596 case LPFC_EVT_RESET_HBA
:
597 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
598 lpfc_reset_hba(phba
);
603 spin_lock_irq(&phba
->hbalock
);
605 spin_unlock_irq(&phba
->hbalock
);
610 lpfc_work_done(struct lpfc_hba
*phba
)
612 struct lpfc_sli_ring
*pring
;
613 uint32_t ha_copy
, status
, control
, work_port_events
;
614 struct lpfc_vport
**vports
;
615 struct lpfc_vport
*vport
;
618 spin_lock_irq(&phba
->hbalock
);
619 ha_copy
= phba
->work_ha
;
621 spin_unlock_irq(&phba
->hbalock
);
623 /* First, try to post the next mailbox command to SLI4 device */
624 if (phba
->pci_dev_grp
== LPFC_PCI_DEV_OC
)
625 lpfc_sli4_post_async_mbox(phba
);
627 if (ha_copy
& HA_ERATT
)
628 /* Handle the error attention event */
629 lpfc_handle_eratt(phba
);
631 if (ha_copy
& HA_MBATT
)
632 lpfc_sli_handle_mb_event(phba
);
634 if (ha_copy
& HA_LATT
)
635 lpfc_handle_latt(phba
);
637 /* Process SLI4 events */
638 if (phba
->pci_dev_grp
== LPFC_PCI_DEV_OC
) {
639 if (phba
->hba_flag
& HBA_RRQ_ACTIVE
)
640 lpfc_handle_rrq_active(phba
);
641 if (phba
->hba_flag
& FCP_XRI_ABORT_EVENT
)
642 lpfc_sli4_fcp_xri_abort_event_proc(phba
);
643 if (phba
->hba_flag
& NVME_XRI_ABORT_EVENT
)
644 lpfc_sli4_nvme_xri_abort_event_proc(phba
);
645 if (phba
->hba_flag
& ELS_XRI_ABORT_EVENT
)
646 lpfc_sli4_els_xri_abort_event_proc(phba
);
647 if (phba
->hba_flag
& ASYNC_EVENT
)
648 lpfc_sli4_async_event_proc(phba
);
649 if (phba
->hba_flag
& HBA_POST_RECEIVE_BUFFER
) {
650 spin_lock_irq(&phba
->hbalock
);
651 phba
->hba_flag
&= ~HBA_POST_RECEIVE_BUFFER
;
652 spin_unlock_irq(&phba
->hbalock
);
653 lpfc_sli_hbqbuf_add_hbqs(phba
, LPFC_ELS_HBQ
);
655 if (phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
)
656 lpfc_sli4_fcf_redisc_event_proc(phba
);
659 vports
= lpfc_create_vport_work_array(phba
);
661 for (i
= 0; i
<= phba
->max_vports
; i
++) {
663 * We could have no vports in array if unloading, so if
664 * this happens then just use the pport
666 if (vports
[i
] == NULL
&& i
== 0)
672 spin_lock_irq(&vport
->work_port_lock
);
673 work_port_events
= vport
->work_port_events
;
674 vport
->work_port_events
&= ~work_port_events
;
675 spin_unlock_irq(&vport
->work_port_lock
);
676 if (work_port_events
& WORKER_DISC_TMO
)
677 lpfc_disc_timeout_handler(vport
);
678 if (work_port_events
& WORKER_ELS_TMO
)
679 lpfc_els_timeout_handler(vport
);
680 if (work_port_events
& WORKER_HB_TMO
)
681 lpfc_hb_timeout_handler(phba
);
682 if (work_port_events
& WORKER_MBOX_TMO
)
683 lpfc_mbox_timeout_handler(phba
);
684 if (work_port_events
& WORKER_FABRIC_BLOCK_TMO
)
685 lpfc_unblock_fabric_iocbs(phba
);
686 if (work_port_events
& WORKER_RAMP_DOWN_QUEUE
)
687 lpfc_ramp_down_queue_handler(phba
);
688 if (work_port_events
& WORKER_DELAYED_DISC_TMO
)
689 lpfc_delayed_disc_timeout_handler(vport
);
691 lpfc_destroy_vport_work_array(phba
, vports
);
693 pring
= lpfc_phba_elsring(phba
);
694 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
695 status
>>= (4*LPFC_ELS_RING
);
696 if (pring
&& (status
& HA_RXMASK
||
697 pring
->flag
& LPFC_DEFERRED_RING_EVENT
||
698 phba
->hba_flag
& HBA_SP_QUEUE_EVT
)) {
699 if (pring
->flag
& LPFC_STOP_IOCB_EVENT
) {
700 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
701 /* Set the lpfc data pending flag */
702 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
704 if (phba
->link_state
>= LPFC_LINK_UP
||
705 phba
->link_flag
& LS_MDS_LOOPBACK
) {
706 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
707 lpfc_sli_handle_slow_ring_event(phba
, pring
,
712 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
713 (!list_empty(&pring
->txq
)))
714 lpfc_drain_txq(phba
);
716 * Turn on Ring interrupts
718 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
719 spin_lock_irq(&phba
->hbalock
);
720 control
= readl(phba
->HCregaddr
);
721 if (!(control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
))) {
722 lpfc_debugfs_slow_ring_trc(phba
,
723 "WRK Enable ring: cntl:x%x hacopy:x%x",
724 control
, ha_copy
, 0);
726 control
|= (HC_R0INT_ENA
<< LPFC_ELS_RING
);
727 writel(control
, phba
->HCregaddr
);
728 readl(phba
->HCregaddr
); /* flush */
730 lpfc_debugfs_slow_ring_trc(phba
,
731 "WRK Ring ok: cntl:x%x hacopy:x%x",
732 control
, ha_copy
, 0);
734 spin_unlock_irq(&phba
->hbalock
);
737 lpfc_work_list_done(phba
);
741 lpfc_do_work(void *p
)
743 struct lpfc_hba
*phba
= p
;
746 set_user_nice(current
, MIN_NICE
);
747 current
->flags
|= PF_NOFREEZE
;
748 phba
->data_flags
= 0;
750 while (!kthread_should_stop()) {
751 /* wait and check worker queue activities */
752 rc
= wait_event_interruptible(phba
->work_waitq
,
753 (test_and_clear_bit(LPFC_DATA_READY
,
755 || kthread_should_stop()));
756 /* Signal wakeup shall terminate the worker thread */
758 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
759 "0433 Wakeup on signal: rc=x%x\n", rc
);
763 /* Attend pending lpfc data processing */
764 lpfc_work_done(phba
);
766 phba
->worker_thread
= NULL
;
767 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
768 "0432 Worker thread stopped.\n");
773 * This is only called to handle FC worker events. Since this a rare
774 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
775 * embedding it in the IOCB.
778 lpfc_workq_post_event(struct lpfc_hba
*phba
, void *arg1
, void *arg2
,
781 struct lpfc_work_evt
*evtp
;
785 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
786 * be queued to worker thread for processing
788 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_ATOMIC
);
792 evtp
->evt_arg1
= arg1
;
793 evtp
->evt_arg2
= arg2
;
796 spin_lock_irqsave(&phba
->hbalock
, flags
);
797 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
798 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
800 lpfc_worker_wake_up(phba
);
806 lpfc_cleanup_rpis(struct lpfc_vport
*vport
, int remove
)
808 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
809 struct lpfc_hba
*phba
= vport
->phba
;
810 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
812 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
813 if (!NLP_CHK_NODE_ACT(ndlp
))
815 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
817 if ((phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) ||
818 ((vport
->port_type
== LPFC_NPIV_PORT
) &&
819 (ndlp
->nlp_DID
== NameServer_DID
)))
820 lpfc_unreg_rpi(vport
, ndlp
);
822 /* Leave Fabric nodes alone on link down */
823 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
824 (!remove
&& ndlp
->nlp_type
& NLP_FABRIC
))
826 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
829 : NLP_EVT_DEVICE_RECOVERY
);
831 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) {
832 if (phba
->sli_rev
== LPFC_SLI_REV4
)
833 lpfc_sli4_unreg_all_rpis(vport
);
834 lpfc_mbx_unreg_vpi(vport
);
835 spin_lock_irq(shost
->host_lock
);
836 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
837 spin_unlock_irq(shost
->host_lock
);
842 lpfc_port_link_failure(struct lpfc_vport
*vport
)
844 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
846 /* Cleanup any outstanding received buffers */
847 lpfc_cleanup_rcv_buffers(vport
);
849 /* Cleanup any outstanding RSCN activity */
850 lpfc_els_flush_rscn(vport
);
852 /* Cleanup any outstanding ELS commands */
853 lpfc_els_flush_cmd(vport
);
855 lpfc_cleanup_rpis(vport
, 0);
857 /* Turn off discovery timer if its running */
858 lpfc_can_disctmo(vport
);
862 lpfc_linkdown_port(struct lpfc_vport
*vport
)
864 struct lpfc_hba
*phba
= vport
->phba
;
865 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
867 if (phba
->cfg_enable_fc4_type
!= LPFC_ENABLE_NVME
)
868 fc_host_post_event(shost
, fc_get_event_number(),
869 FCH_EVT_LINKDOWN
, 0);
871 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
872 "Link Down: state:x%x rtry:x%x flg:x%x",
873 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
875 lpfc_port_link_failure(vport
);
877 /* Stop delayed Nport discovery */
878 spin_lock_irq(shost
->host_lock
);
879 vport
->fc_flag
&= ~FC_DISC_DELAYED
;
880 spin_unlock_irq(shost
->host_lock
);
881 del_timer_sync(&vport
->delayed_disc_tmo
);
885 lpfc_linkdown(struct lpfc_hba
*phba
)
887 struct lpfc_vport
*vport
= phba
->pport
;
888 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
889 struct lpfc_vport
**vports
;
893 if (phba
->link_state
== LPFC_LINK_DOWN
)
896 /* Block all SCSI stack I/Os */
897 lpfc_scsi_dev_block(phba
);
899 spin_lock_irq(&phba
->hbalock
);
900 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
901 spin_unlock_irq(&phba
->hbalock
);
902 if (phba
->link_state
> LPFC_LINK_DOWN
) {
903 phba
->link_state
= LPFC_LINK_DOWN
;
904 spin_lock_irq(shost
->host_lock
);
905 phba
->pport
->fc_flag
&= ~FC_LBIT
;
906 spin_unlock_irq(shost
->host_lock
);
908 vports
= lpfc_create_vport_work_array(phba
);
909 if (vports
!= NULL
) {
910 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
911 /* Issue a LINK DOWN event to all nodes */
912 lpfc_linkdown_port(vports
[i
]);
914 vports
[i
]->fc_myDID
= 0;
916 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
917 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) {
918 if (phba
->nvmet_support
)
919 lpfc_nvmet_update_targetport(phba
);
921 lpfc_nvme_update_localport(vports
[i
]);
925 lpfc_destroy_vport_work_array(phba
, vports
);
926 /* Clean up any firmware default rpi's */
927 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
929 lpfc_unreg_did(phba
, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS
, mb
);
931 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
932 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
933 == MBX_NOT_FINISHED
) {
934 mempool_free(mb
, phba
->mbox_mem_pool
);
938 /* Setup myDID for link up if we are in pt2pt mode */
939 if (phba
->pport
->fc_flag
& FC_PT2PT
) {
940 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
942 lpfc_config_link(phba
, mb
);
943 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
945 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
946 == MBX_NOT_FINISHED
) {
947 mempool_free(mb
, phba
->mbox_mem_pool
);
950 spin_lock_irq(shost
->host_lock
);
951 phba
->pport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
952 spin_unlock_irq(shost
->host_lock
);
958 lpfc_linkup_cleanup_nodes(struct lpfc_vport
*vport
)
960 struct lpfc_nodelist
*ndlp
;
962 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
963 if (!NLP_CHK_NODE_ACT(ndlp
))
965 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
967 if (ndlp
->nlp_type
& NLP_FABRIC
) {
968 /* On Linkup its safe to clean up the ndlp
969 * from Fabric connections.
971 if (ndlp
->nlp_DID
!= Fabric_DID
)
972 lpfc_unreg_rpi(vport
, ndlp
);
973 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
974 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
975 /* Fail outstanding IO now since device is
978 lpfc_unreg_rpi(vport
, ndlp
);
984 lpfc_linkup_port(struct lpfc_vport
*vport
)
986 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
987 struct lpfc_hba
*phba
= vport
->phba
;
989 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
992 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
993 "Link Up: top:x%x speed:x%x flg:x%x",
994 phba
->fc_topology
, phba
->fc_linkspeed
, phba
->link_flag
);
996 /* If NPIV is not enabled, only bring the physical port up */
997 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
998 (vport
!= phba
->pport
))
1001 if (phba
->cfg_enable_fc4_type
!= LPFC_ENABLE_NVME
)
1002 fc_host_post_event(shost
, fc_get_event_number(),
1005 spin_lock_irq(shost
->host_lock
);
1006 vport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
1007 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
1008 vport
->fc_flag
|= FC_NDISC_ACTIVE
;
1009 vport
->fc_ns_retry
= 0;
1010 spin_unlock_irq(shost
->host_lock
);
1012 if (vport
->fc_flag
& FC_LBIT
)
1013 lpfc_linkup_cleanup_nodes(vport
);
1018 lpfc_linkup(struct lpfc_hba
*phba
)
1020 struct lpfc_vport
**vports
;
1023 phba
->link_state
= LPFC_LINK_UP
;
1025 /* Unblock fabric iocbs if they are blocked */
1026 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
1027 del_timer_sync(&phba
->fabric_block_timer
);
1029 vports
= lpfc_create_vport_work_array(phba
);
1031 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1032 lpfc_linkup_port(vports
[i
]);
1033 lpfc_destroy_vport_work_array(phba
, vports
);
1039 * This routine handles processing a CLEAR_LA mailbox
1040 * command upon completion. It is setup in the LPFC_MBOXQ
1041 * as the completion routine when the command is
1042 * handed off to the SLI layer. SLI3 only.
1045 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1047 struct lpfc_vport
*vport
= pmb
->vport
;
1048 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1049 struct lpfc_sli
*psli
= &phba
->sli
;
1050 MAILBOX_t
*mb
= &pmb
->u
.mb
;
1053 /* Since we don't do discovery right now, turn these off here */
1054 psli
->sli3_ring
[LPFC_EXTRA_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1055 psli
->sli3_ring
[LPFC_FCP_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1057 /* Check for error */
1058 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
1059 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1060 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1061 "0320 CLEAR_LA mbxStatus error x%x hba "
1063 mb
->mbxStatus
, vport
->port_state
);
1064 phba
->link_state
= LPFC_HBA_ERROR
;
1068 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
1069 phba
->link_state
= LPFC_HBA_READY
;
1071 spin_lock_irq(&phba
->hbalock
);
1072 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1073 control
= readl(phba
->HCregaddr
);
1074 control
|= HC_LAINT_ENA
;
1075 writel(control
, phba
->HCregaddr
);
1076 readl(phba
->HCregaddr
); /* flush */
1077 spin_unlock_irq(&phba
->hbalock
);
1078 mempool_free(pmb
, phba
->mbox_mem_pool
);
1082 /* Device Discovery completes */
1083 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1084 "0225 Device Discovery completes\n");
1085 mempool_free(pmb
, phba
->mbox_mem_pool
);
1087 spin_lock_irq(shost
->host_lock
);
1088 vport
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
1089 spin_unlock_irq(shost
->host_lock
);
1091 lpfc_can_disctmo(vport
);
1093 /* turn on Link Attention interrupts */
1095 spin_lock_irq(&phba
->hbalock
);
1096 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1097 control
= readl(phba
->HCregaddr
);
1098 control
|= HC_LAINT_ENA
;
1099 writel(control
, phba
->HCregaddr
);
1100 readl(phba
->HCregaddr
); /* flush */
1101 spin_unlock_irq(&phba
->hbalock
);
1108 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1110 struct lpfc_vport
*vport
= pmb
->vport
;
1112 if (pmb
->u
.mb
.mbxStatus
)
1115 mempool_free(pmb
, phba
->mbox_mem_pool
);
1117 /* don't perform discovery for SLI4 loopback diagnostic test */
1118 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1119 !(phba
->hba_flag
& HBA_FCOE_MODE
) &&
1120 (phba
->link_flag
& LS_LOOPBACK_MODE
))
1123 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
&&
1124 vport
->fc_flag
& FC_PUBLIC_LOOP
&&
1125 !(vport
->fc_flag
& FC_LBIT
)) {
1126 /* Need to wait for FAN - use discovery timer
1127 * for timeout. port_state is identically
1128 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1130 lpfc_set_disctmo(vport
);
1134 /* Start discovery by sending a FLOGI. port_state is identically
1135 * LPFC_FLOGI while waiting for FLOGI cmpl
1137 if (vport
->port_state
!= LPFC_FLOGI
)
1138 lpfc_initial_flogi(vport
);
1139 else if (vport
->fc_flag
& FC_PT2PT
)
1140 lpfc_disc_start(vport
);
1144 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1145 "0306 CONFIG_LINK mbxStatus error x%x "
1147 pmb
->u
.mb
.mbxStatus
, vport
->port_state
);
1148 mempool_free(pmb
, phba
->mbox_mem_pool
);
1150 lpfc_linkdown(phba
);
1152 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
1153 "0200 CONFIG_LINK bad hba state x%x\n",
1156 lpfc_issue_clear_la(phba
, vport
);
1161 * lpfc_sli4_clear_fcf_rr_bmask
1162 * @phba pointer to the struct lpfc_hba for this port.
1163 * This fucnction resets the round robin bit mask and clears the
1164 * fcf priority list. The list deletions are done while holding the
1165 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1166 * from the lpfc_fcf_pri record.
1169 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba
*phba
)
1171 struct lpfc_fcf_pri
*fcf_pri
;
1172 struct lpfc_fcf_pri
*next_fcf_pri
;
1173 memset(phba
->fcf
.fcf_rr_bmask
, 0, sizeof(*phba
->fcf
.fcf_rr_bmask
));
1174 spin_lock_irq(&phba
->hbalock
);
1175 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
1176 &phba
->fcf
.fcf_pri_list
, list
) {
1177 list_del_init(&fcf_pri
->list
);
1178 fcf_pri
->fcf_rec
.flag
= 0;
1180 spin_unlock_irq(&phba
->hbalock
);
1183 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
1185 struct lpfc_vport
*vport
= mboxq
->vport
;
1187 if (mboxq
->u
.mb
.mbxStatus
) {
1188 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1189 "2017 REG_FCFI mbxStatus error x%x "
1191 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
1195 /* Start FCoE discovery by sending a FLOGI. */
1196 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
, &mboxq
->u
.mqe
.un
.reg_fcfi
);
1197 /* Set the FCFI registered flag */
1198 spin_lock_irq(&phba
->hbalock
);
1199 phba
->fcf
.fcf_flag
|= FCF_REGISTERED
;
1200 spin_unlock_irq(&phba
->hbalock
);
1202 /* If there is a pending FCoE event, restart FCF table scan. */
1203 if ((!(phba
->hba_flag
& FCF_RR_INPROG
)) &&
1204 lpfc_check_pending_fcoe_event(phba
, LPFC_UNREG_FCF
))
1207 /* Mark successful completion of FCF table scan */
1208 spin_lock_irq(&phba
->hbalock
);
1209 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1210 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1211 if (vport
->port_state
!= LPFC_FLOGI
) {
1212 phba
->hba_flag
|= FCF_RR_INPROG
;
1213 spin_unlock_irq(&phba
->hbalock
);
1214 lpfc_issue_init_vfi(vport
);
1217 spin_unlock_irq(&phba
->hbalock
);
1221 spin_lock_irq(&phba
->hbalock
);
1222 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1223 spin_unlock_irq(&phba
->hbalock
);
1225 mempool_free(mboxq
, phba
->mbox_mem_pool
);
1229 * lpfc_fab_name_match - Check if the fcf fabric name match.
1230 * @fab_name: pointer to fabric name.
1231 * @new_fcf_record: pointer to fcf record.
1233 * This routine compare the fcf record's fabric name with provided
1234 * fabric name. If the fabric name are identical this function
1235 * returns 1 else return 0.
1238 lpfc_fab_name_match(uint8_t *fab_name
, struct fcf_record
*new_fcf_record
)
1240 if (fab_name
[0] != bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
))
1242 if (fab_name
[1] != bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
))
1244 if (fab_name
[2] != bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
))
1246 if (fab_name
[3] != bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
))
1248 if (fab_name
[4] != bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
))
1250 if (fab_name
[5] != bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
))
1252 if (fab_name
[6] != bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
))
1254 if (fab_name
[7] != bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
))
1260 * lpfc_sw_name_match - Check if the fcf switch name match.
1261 * @fab_name: pointer to fabric name.
1262 * @new_fcf_record: pointer to fcf record.
1264 * This routine compare the fcf record's switch name with provided
1265 * switch name. If the switch name are identical this function
1266 * returns 1 else return 0.
1269 lpfc_sw_name_match(uint8_t *sw_name
, struct fcf_record
*new_fcf_record
)
1271 if (sw_name
[0] != bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
))
1273 if (sw_name
[1] != bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
))
1275 if (sw_name
[2] != bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
))
1277 if (sw_name
[3] != bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
))
1279 if (sw_name
[4] != bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
))
1281 if (sw_name
[5] != bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
))
1283 if (sw_name
[6] != bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
))
1285 if (sw_name
[7] != bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
))
1291 * lpfc_mac_addr_match - Check if the fcf mac address match.
1292 * @mac_addr: pointer to mac address.
1293 * @new_fcf_record: pointer to fcf record.
1295 * This routine compare the fcf record's mac address with HBA's
1296 * FCF mac address. If the mac addresses are identical this function
1297 * returns 1 else return 0.
1300 lpfc_mac_addr_match(uint8_t *mac_addr
, struct fcf_record
*new_fcf_record
)
1302 if (mac_addr
[0] != bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
))
1304 if (mac_addr
[1] != bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
))
1306 if (mac_addr
[2] != bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
))
1308 if (mac_addr
[3] != bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
))
1310 if (mac_addr
[4] != bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
))
1312 if (mac_addr
[5] != bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
))
1318 lpfc_vlan_id_match(uint16_t curr_vlan_id
, uint16_t new_vlan_id
)
1320 return (curr_vlan_id
== new_vlan_id
);
1324 * lpfc_update_fcf_record - Update driver fcf record
1325 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1326 * @phba: pointer to lpfc hba data structure.
1327 * @fcf_index: Index for the lpfc_fcf_record.
1328 * @new_fcf_record: pointer to hba fcf record.
1330 * This routine updates the driver FCF priority record from the new HBA FCF
1331 * record. This routine is called with the host lock held.
1334 __lpfc_update_fcf_record_pri(struct lpfc_hba
*phba
, uint16_t fcf_index
,
1335 struct fcf_record
*new_fcf_record
1338 struct lpfc_fcf_pri
*fcf_pri
;
1340 lockdep_assert_held(&phba
->hbalock
);
1342 fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
1343 fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
1344 /* FCF record priority */
1345 fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
1350 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1351 * @fcf: pointer to driver fcf record.
1352 * @new_fcf_record: pointer to fcf record.
1354 * This routine copies the FCF information from the FCF
1355 * record to lpfc_hba data structure.
1358 lpfc_copy_fcf_record(struct lpfc_fcf_rec
*fcf_rec
,
1359 struct fcf_record
*new_fcf_record
)
1362 fcf_rec
->fabric_name
[0] =
1363 bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
);
1364 fcf_rec
->fabric_name
[1] =
1365 bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
);
1366 fcf_rec
->fabric_name
[2] =
1367 bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
);
1368 fcf_rec
->fabric_name
[3] =
1369 bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
);
1370 fcf_rec
->fabric_name
[4] =
1371 bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
);
1372 fcf_rec
->fabric_name
[5] =
1373 bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
);
1374 fcf_rec
->fabric_name
[6] =
1375 bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
);
1376 fcf_rec
->fabric_name
[7] =
1377 bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
);
1379 fcf_rec
->mac_addr
[0] = bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
);
1380 fcf_rec
->mac_addr
[1] = bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
);
1381 fcf_rec
->mac_addr
[2] = bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
);
1382 fcf_rec
->mac_addr
[3] = bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
);
1383 fcf_rec
->mac_addr
[4] = bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
);
1384 fcf_rec
->mac_addr
[5] = bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
);
1385 /* FCF record index */
1386 fcf_rec
->fcf_indx
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
1387 /* FCF record priority */
1388 fcf_rec
->priority
= new_fcf_record
->fip_priority
;
1390 fcf_rec
->switch_name
[0] =
1391 bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
);
1392 fcf_rec
->switch_name
[1] =
1393 bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
);
1394 fcf_rec
->switch_name
[2] =
1395 bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
);
1396 fcf_rec
->switch_name
[3] =
1397 bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
);
1398 fcf_rec
->switch_name
[4] =
1399 bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
);
1400 fcf_rec
->switch_name
[5] =
1401 bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
);
1402 fcf_rec
->switch_name
[6] =
1403 bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
);
1404 fcf_rec
->switch_name
[7] =
1405 bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
);
1409 * lpfc_update_fcf_record - Update driver fcf record
1410 * @phba: pointer to lpfc hba data structure.
1411 * @fcf_rec: pointer to driver fcf record.
1412 * @new_fcf_record: pointer to hba fcf record.
1413 * @addr_mode: address mode to be set to the driver fcf record.
1414 * @vlan_id: vlan tag to be set to the driver fcf record.
1415 * @flag: flag bits to be set to the driver fcf record.
1417 * This routine updates the driver FCF record from the new HBA FCF record
1418 * together with the address mode, vlan_id, and other informations. This
1419 * routine is called with the host lock held.
1422 __lpfc_update_fcf_record(struct lpfc_hba
*phba
, struct lpfc_fcf_rec
*fcf_rec
,
1423 struct fcf_record
*new_fcf_record
, uint32_t addr_mode
,
1424 uint16_t vlan_id
, uint32_t flag
)
1426 lockdep_assert_held(&phba
->hbalock
);
1428 /* Copy the fields from the HBA's FCF record */
1429 lpfc_copy_fcf_record(fcf_rec
, new_fcf_record
);
1430 /* Update other fields of driver FCF record */
1431 fcf_rec
->addr_mode
= addr_mode
;
1432 fcf_rec
->vlan_id
= vlan_id
;
1433 fcf_rec
->flag
|= (flag
| RECORD_VALID
);
1434 __lpfc_update_fcf_record_pri(phba
,
1435 bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
),
1440 * lpfc_register_fcf - Register the FCF with hba.
1441 * @phba: pointer to lpfc hba data structure.
1443 * This routine issues a register fcfi mailbox command to register
1447 lpfc_register_fcf(struct lpfc_hba
*phba
)
1449 LPFC_MBOXQ_t
*fcf_mbxq
;
1452 spin_lock_irq(&phba
->hbalock
);
1453 /* If the FCF is not available do nothing. */
1454 if (!(phba
->fcf
.fcf_flag
& FCF_AVAILABLE
)) {
1455 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1456 spin_unlock_irq(&phba
->hbalock
);
1460 /* The FCF is already registered, start discovery */
1461 if (phba
->fcf
.fcf_flag
& FCF_REGISTERED
) {
1462 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1463 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1464 if (phba
->pport
->port_state
!= LPFC_FLOGI
&&
1465 phba
->pport
->fc_flag
& FC_FABRIC
) {
1466 phba
->hba_flag
|= FCF_RR_INPROG
;
1467 spin_unlock_irq(&phba
->hbalock
);
1468 lpfc_initial_flogi(phba
->pport
);
1471 spin_unlock_irq(&phba
->hbalock
);
1474 spin_unlock_irq(&phba
->hbalock
);
1476 fcf_mbxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1478 spin_lock_irq(&phba
->hbalock
);
1479 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1480 spin_unlock_irq(&phba
->hbalock
);
1484 lpfc_reg_fcfi(phba
, fcf_mbxq
);
1485 fcf_mbxq
->vport
= phba
->pport
;
1486 fcf_mbxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_fcfi
;
1487 rc
= lpfc_sli_issue_mbox(phba
, fcf_mbxq
, MBX_NOWAIT
);
1488 if (rc
== MBX_NOT_FINISHED
) {
1489 spin_lock_irq(&phba
->hbalock
);
1490 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1491 spin_unlock_irq(&phba
->hbalock
);
1492 mempool_free(fcf_mbxq
, phba
->mbox_mem_pool
);
1499 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1500 * @phba: pointer to lpfc hba data structure.
1501 * @new_fcf_record: pointer to fcf record.
1502 * @boot_flag: Indicates if this record used by boot bios.
1503 * @addr_mode: The address mode to be used by this FCF
1504 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1506 * This routine compare the fcf record with connect list obtained from the
1507 * config region to decide if this FCF can be used for SAN discovery. It returns
1508 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1509 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1510 * is used by boot bios and addr_mode will indicate the addressing mode to be
1511 * used for this FCF when the function returns.
1512 * If the FCF record need to be used with a particular vlan id, the vlan is
1513 * set in the vlan_id on return of the function. If not VLAN tagging need to
1514 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1517 lpfc_match_fcf_conn_list(struct lpfc_hba
*phba
,
1518 struct fcf_record
*new_fcf_record
,
1519 uint32_t *boot_flag
, uint32_t *addr_mode
,
1522 struct lpfc_fcf_conn_entry
*conn_entry
;
1523 int i
, j
, fcf_vlan_id
= 0;
1525 /* Find the lowest VLAN id in the FCF record */
1526 for (i
= 0; i
< 512; i
++) {
1527 if (new_fcf_record
->vlan_bitmap
[i
]) {
1528 fcf_vlan_id
= i
* 8;
1530 while (!((new_fcf_record
->vlan_bitmap
[i
] >> j
) & 1)) {
1538 /* FCF not valid/available or solicitation in progress */
1539 if (!bf_get(lpfc_fcf_record_fcf_avail
, new_fcf_record
) ||
1540 !bf_get(lpfc_fcf_record_fcf_valid
, new_fcf_record
) ||
1541 bf_get(lpfc_fcf_record_fcf_sol
, new_fcf_record
))
1544 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
1546 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1548 if (phba
->valid_vlan
)
1549 *vlan_id
= phba
->vlan_id
;
1551 *vlan_id
= LPFC_FCOE_NULL_VID
;
1556 * If there are no FCF connection table entry, driver connect to all
1559 if (list_empty(&phba
->fcf_conn_rec_list
)) {
1561 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1565 * When there are no FCF connect entries, use driver's default
1566 * addressing mode - FPMA.
1568 if (*addr_mode
& LPFC_FCF_FPMA
)
1569 *addr_mode
= LPFC_FCF_FPMA
;
1571 /* If FCF record report a vlan id use that vlan id */
1573 *vlan_id
= fcf_vlan_id
;
1575 *vlan_id
= LPFC_FCOE_NULL_VID
;
1579 list_for_each_entry(conn_entry
,
1580 &phba
->fcf_conn_rec_list
, list
) {
1581 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_VALID
))
1584 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_FBNM_VALID
) &&
1585 !lpfc_fab_name_match(conn_entry
->conn_rec
.fabric_name
,
1588 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_SWNM_VALID
) &&
1589 !lpfc_sw_name_match(conn_entry
->conn_rec
.switch_name
,
1592 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
) {
1594 * If the vlan bit map does not have the bit set for the
1595 * vlan id to be used, then it is not a match.
1597 if (!(new_fcf_record
->vlan_bitmap
1598 [conn_entry
->conn_rec
.vlan_tag
/ 8] &
1599 (1 << (conn_entry
->conn_rec
.vlan_tag
% 8))))
1604 * If connection record does not support any addressing mode,
1605 * skip the FCF record.
1607 if (!(bf_get(lpfc_fcf_record_mac_addr_prov
, new_fcf_record
)
1608 & (LPFC_FCF_FPMA
| LPFC_FCF_SPMA
)))
1612 * Check if the connection record specifies a required
1615 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1616 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)) {
1619 * If SPMA required but FCF not support this continue.
1621 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1622 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1623 new_fcf_record
) & LPFC_FCF_SPMA
))
1627 * If FPMA required but FCF not support this continue.
1629 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1630 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1631 new_fcf_record
) & LPFC_FCF_FPMA
))
1636 * This fcf record matches filtering criteria.
1638 if (conn_entry
->conn_rec
.flags
& FCFCNCT_BOOT
)
1644 * If user did not specify any addressing mode, or if the
1645 * preferred addressing mode specified by user is not supported
1646 * by FCF, allow fabric to pick the addressing mode.
1648 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1651 * If the user specified a required address mode, assign that
1654 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1655 (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)))
1656 *addr_mode
= (conn_entry
->conn_rec
.flags
&
1658 LPFC_FCF_SPMA
: LPFC_FCF_FPMA
;
1660 * If the user specified a preferred address mode, use the
1661 * addr mode only if FCF support the addr_mode.
1663 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1664 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1665 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1666 (*addr_mode
& LPFC_FCF_SPMA
))
1667 *addr_mode
= LPFC_FCF_SPMA
;
1668 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1669 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1670 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1671 (*addr_mode
& LPFC_FCF_FPMA
))
1672 *addr_mode
= LPFC_FCF_FPMA
;
1674 /* If matching connect list has a vlan id, use it */
1675 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
)
1676 *vlan_id
= conn_entry
->conn_rec
.vlan_tag
;
1678 * If no vlan id is specified in connect list, use the vlan id
1681 else if (fcf_vlan_id
)
1682 *vlan_id
= fcf_vlan_id
;
1684 *vlan_id
= LPFC_FCOE_NULL_VID
;
1693 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1694 * @phba: pointer to lpfc hba data structure.
1695 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1697 * This function check if there is any fcoe event pending while driver
1698 * scan FCF entries. If there is any pending event, it will restart the
1699 * FCF saning and return 1 else return 0.
1702 lpfc_check_pending_fcoe_event(struct lpfc_hba
*phba
, uint8_t unreg_fcf
)
1705 * If the Link is up and no FCoE events while in the
1706 * FCF discovery, no need to restart FCF discovery.
1708 if ((phba
->link_state
>= LPFC_LINK_UP
) &&
1709 (phba
->fcoe_eventtag
== phba
->fcoe_eventtag_at_fcf_scan
))
1712 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1713 "2768 Pending link or FCF event during current "
1714 "handling of the previous event: link_state:x%x, "
1715 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1716 phba
->link_state
, phba
->fcoe_eventtag_at_fcf_scan
,
1717 phba
->fcoe_eventtag
);
1719 spin_lock_irq(&phba
->hbalock
);
1720 phba
->fcf
.fcf_flag
&= ~FCF_AVAILABLE
;
1721 spin_unlock_irq(&phba
->hbalock
);
1723 if (phba
->link_state
>= LPFC_LINK_UP
) {
1724 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1725 "2780 Restart FCF table scan due to "
1726 "pending FCF event:evt_tag_at_scan:x%x, "
1727 "evt_tag_current:x%x\n",
1728 phba
->fcoe_eventtag_at_fcf_scan
,
1729 phba
->fcoe_eventtag
);
1730 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
1733 * Do not continue FCF discovery and clear FCF_TS_INPROG
1736 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1737 "2833 Stop FCF discovery process due to link "
1738 "state change (x%x)\n", phba
->link_state
);
1739 spin_lock_irq(&phba
->hbalock
);
1740 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1741 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_FOV
| FCF_DISCOVERY
);
1742 spin_unlock_irq(&phba
->hbalock
);
1745 /* Unregister the currently registered FCF if required */
1747 spin_lock_irq(&phba
->hbalock
);
1748 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
1749 spin_unlock_irq(&phba
->hbalock
);
1750 lpfc_sli4_unregister_fcf(phba
);
1756 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1757 * @phba: pointer to lpfc hba data structure.
1758 * @fcf_cnt: number of eligible fcf record seen so far.
1760 * This function makes an running random selection decision on FCF record to
1761 * use through a sequence of @fcf_cnt eligible FCF records with equal
1762 * probability. To perform integer manunipulation of random numbers with
1763 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1764 * from prandom_u32() are taken as the random random number generated.
1766 * Returns true when outcome is for the newly read FCF record should be
1767 * chosen; otherwise, return false when outcome is for keeping the previously
1768 * chosen FCF record.
1771 lpfc_sli4_new_fcf_random_select(struct lpfc_hba
*phba
, uint32_t fcf_cnt
)
1775 /* Get 16-bit uniform random number */
1776 rand_num
= 0xFFFF & prandom_u32();
1778 /* Decision with probability 1/fcf_cnt */
1779 if ((fcf_cnt
* rand_num
) < 0xFFFF)
1786 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1787 * @phba: pointer to lpfc hba data structure.
1788 * @mboxq: pointer to mailbox object.
1789 * @next_fcf_index: pointer to holder of next fcf index.
1791 * This routine parses the non-embedded fcf mailbox command by performing the
1792 * necessarily error checking, non-embedded read FCF record mailbox command
1793 * SGE parsing, and endianness swapping.
1795 * Returns the pointer to the new FCF record in the non-embedded mailbox
1796 * command DMA memory if successfully, other NULL.
1798 static struct fcf_record
*
1799 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
1800 uint16_t *next_fcf_index
)
1803 struct lpfc_mbx_sge sge
;
1804 struct lpfc_mbx_read_fcf_tbl
*read_fcf
;
1805 uint32_t shdr_status
, shdr_add_status
, if_type
;
1806 union lpfc_sli4_cfg_shdr
*shdr
;
1807 struct fcf_record
*new_fcf_record
;
1809 /* Get the first SGE entry from the non-embedded DMA memory. This
1810 * routine only uses a single SGE.
1812 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
1813 if (unlikely(!mboxq
->sge_array
)) {
1814 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1815 "2524 Failed to get the non-embedded SGE "
1816 "virtual address\n");
1819 virt_addr
= mboxq
->sge_array
->addr
[0];
1821 shdr
= (union lpfc_sli4_cfg_shdr
*)virt_addr
;
1822 lpfc_sli_pcimem_bcopy(shdr
, shdr
,
1823 sizeof(union lpfc_sli4_cfg_shdr
));
1824 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
1825 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1826 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
1827 if (shdr_status
|| shdr_add_status
) {
1828 if (shdr_status
== STATUS_FCF_TABLE_EMPTY
||
1829 if_type
== LPFC_SLI_INTF_IF_TYPE_2
)
1830 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1831 "2726 READ_FCF_RECORD Indicates empty "
1834 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1835 "2521 READ_FCF_RECORD mailbox failed "
1836 "with status x%x add_status x%x, "
1837 "mbx\n", shdr_status
, shdr_add_status
);
1841 /* Interpreting the returned information of the FCF record */
1842 read_fcf
= (struct lpfc_mbx_read_fcf_tbl
*)virt_addr
;
1843 lpfc_sli_pcimem_bcopy(read_fcf
, read_fcf
,
1844 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1845 *next_fcf_index
= bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx
, read_fcf
);
1846 new_fcf_record
= (struct fcf_record
*)(virt_addr
+
1847 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1848 lpfc_sli_pcimem_bcopy(new_fcf_record
, new_fcf_record
,
1849 offsetof(struct fcf_record
, vlan_bitmap
));
1850 new_fcf_record
->word137
= le32_to_cpu(new_fcf_record
->word137
);
1851 new_fcf_record
->word138
= le32_to_cpu(new_fcf_record
->word138
);
1853 return new_fcf_record
;
1857 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1858 * @phba: pointer to lpfc hba data structure.
1859 * @fcf_record: pointer to the fcf record.
1860 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1861 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1863 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1867 lpfc_sli4_log_fcf_record_info(struct lpfc_hba
*phba
,
1868 struct fcf_record
*fcf_record
,
1870 uint16_t next_fcf_index
)
1872 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1873 "2764 READ_FCF_RECORD:\n"
1874 "\tFCF_Index : x%x\n"
1875 "\tFCF_Avail : x%x\n"
1876 "\tFCF_Valid : x%x\n"
1878 "\tFIP_Priority : x%x\n"
1879 "\tMAC_Provider : x%x\n"
1880 "\tLowest VLANID : x%x\n"
1881 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1882 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1883 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1884 "\tNext_FCF_Index: x%x\n",
1885 bf_get(lpfc_fcf_record_fcf_index
, fcf_record
),
1886 bf_get(lpfc_fcf_record_fcf_avail
, fcf_record
),
1887 bf_get(lpfc_fcf_record_fcf_valid
, fcf_record
),
1888 bf_get(lpfc_fcf_record_fcf_sol
, fcf_record
),
1889 fcf_record
->fip_priority
,
1890 bf_get(lpfc_fcf_record_mac_addr_prov
, fcf_record
),
1892 bf_get(lpfc_fcf_record_mac_0
, fcf_record
),
1893 bf_get(lpfc_fcf_record_mac_1
, fcf_record
),
1894 bf_get(lpfc_fcf_record_mac_2
, fcf_record
),
1895 bf_get(lpfc_fcf_record_mac_3
, fcf_record
),
1896 bf_get(lpfc_fcf_record_mac_4
, fcf_record
),
1897 bf_get(lpfc_fcf_record_mac_5
, fcf_record
),
1898 bf_get(lpfc_fcf_record_fab_name_0
, fcf_record
),
1899 bf_get(lpfc_fcf_record_fab_name_1
, fcf_record
),
1900 bf_get(lpfc_fcf_record_fab_name_2
, fcf_record
),
1901 bf_get(lpfc_fcf_record_fab_name_3
, fcf_record
),
1902 bf_get(lpfc_fcf_record_fab_name_4
, fcf_record
),
1903 bf_get(lpfc_fcf_record_fab_name_5
, fcf_record
),
1904 bf_get(lpfc_fcf_record_fab_name_6
, fcf_record
),
1905 bf_get(lpfc_fcf_record_fab_name_7
, fcf_record
),
1906 bf_get(lpfc_fcf_record_switch_name_0
, fcf_record
),
1907 bf_get(lpfc_fcf_record_switch_name_1
, fcf_record
),
1908 bf_get(lpfc_fcf_record_switch_name_2
, fcf_record
),
1909 bf_get(lpfc_fcf_record_switch_name_3
, fcf_record
),
1910 bf_get(lpfc_fcf_record_switch_name_4
, fcf_record
),
1911 bf_get(lpfc_fcf_record_switch_name_5
, fcf_record
),
1912 bf_get(lpfc_fcf_record_switch_name_6
, fcf_record
),
1913 bf_get(lpfc_fcf_record_switch_name_7
, fcf_record
),
1918 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1919 * @phba: pointer to lpfc hba data structure.
1920 * @fcf_rec: pointer to an existing FCF record.
1921 * @new_fcf_record: pointer to a new FCF record.
1922 * @new_vlan_id: vlan id from the new FCF record.
1924 * This function performs matching test of a new FCF record against an existing
1925 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1926 * will not be used as part of the FCF record matching criteria.
1928 * Returns true if all the fields matching, otherwise returns false.
1931 lpfc_sli4_fcf_record_match(struct lpfc_hba
*phba
,
1932 struct lpfc_fcf_rec
*fcf_rec
,
1933 struct fcf_record
*new_fcf_record
,
1934 uint16_t new_vlan_id
)
1936 if (new_vlan_id
!= LPFC_FCOE_IGNORE_VID
)
1937 if (!lpfc_vlan_id_match(fcf_rec
->vlan_id
, new_vlan_id
))
1939 if (!lpfc_mac_addr_match(fcf_rec
->mac_addr
, new_fcf_record
))
1941 if (!lpfc_sw_name_match(fcf_rec
->switch_name
, new_fcf_record
))
1943 if (!lpfc_fab_name_match(fcf_rec
->fabric_name
, new_fcf_record
))
1945 if (fcf_rec
->priority
!= new_fcf_record
->fip_priority
)
1951 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1952 * @vport: Pointer to vport object.
1953 * @fcf_index: index to next fcf.
1955 * This function processing the roundrobin fcf failover to next fcf index.
1956 * When this function is invoked, there will be a current fcf registered
1958 * Return: 0 for continue retrying flogi on currently registered fcf;
1959 * 1 for stop flogi on currently registered fcf;
1961 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport
*vport
, uint16_t fcf_index
)
1963 struct lpfc_hba
*phba
= vport
->phba
;
1966 if (fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
) {
1967 spin_lock_irq(&phba
->hbalock
);
1968 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
1969 spin_unlock_irq(&phba
->hbalock
);
1970 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1971 "2872 Devloss tmo with no eligible "
1972 "FCF, unregister in-use FCF (x%x) "
1973 "and rescan FCF table\n",
1974 phba
->fcf
.current_rec
.fcf_indx
);
1975 lpfc_unregister_fcf_rescan(phba
);
1976 goto stop_flogi_current_fcf
;
1978 /* Mark the end to FLOGI roundrobin failover */
1979 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1980 /* Allow action to new fcf asynchronous event */
1981 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
1982 spin_unlock_irq(&phba
->hbalock
);
1983 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1984 "2865 No FCF available, stop roundrobin FCF "
1985 "failover and change port state:x%x/x%x\n",
1986 phba
->pport
->port_state
, LPFC_VPORT_UNKNOWN
);
1987 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
1988 goto stop_flogi_current_fcf
;
1990 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_ELS
,
1991 "2794 Try FLOGI roundrobin FCF failover to "
1992 "(x%x)\n", fcf_index
);
1993 rc
= lpfc_sli4_fcf_rr_read_fcf_rec(phba
, fcf_index
);
1995 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
1996 "2761 FLOGI roundrobin FCF failover "
1997 "failed (rc:x%x) to read FCF (x%x)\n",
1998 rc
, phba
->fcf
.current_rec
.fcf_indx
);
2000 goto stop_flogi_current_fcf
;
2004 stop_flogi_current_fcf
:
2005 lpfc_can_disctmo(vport
);
2010 * lpfc_sli4_fcf_pri_list_del
2011 * @phba: pointer to lpfc hba data structure.
2012 * @fcf_index the index of the fcf record to delete
2013 * This routine checks the on list flag of the fcf_index to be deleted.
2014 * If it is one the list then it is removed from the list, and the flag
2015 * is cleared. This routine grab the hbalock before removing the fcf
2016 * record from the list.
2018 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba
*phba
,
2021 struct lpfc_fcf_pri
*new_fcf_pri
;
2023 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2024 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2025 "3058 deleting idx x%x pri x%x flg x%x\n",
2026 fcf_index
, new_fcf_pri
->fcf_rec
.priority
,
2027 new_fcf_pri
->fcf_rec
.flag
);
2028 spin_lock_irq(&phba
->hbalock
);
2029 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
) {
2030 if (phba
->fcf
.current_rec
.priority
==
2031 new_fcf_pri
->fcf_rec
.priority
)
2032 phba
->fcf
.eligible_fcf_cnt
--;
2033 list_del_init(&new_fcf_pri
->list
);
2034 new_fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_ON_PRI_LIST
;
2036 spin_unlock_irq(&phba
->hbalock
);
2040 * lpfc_sli4_set_fcf_flogi_fail
2041 * @phba: pointer to lpfc hba data structure.
2042 * @fcf_index the index of the fcf record to update
2043 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2044 * flag so the the round robin slection for the particular priority level
2045 * will try a different fcf record that does not have this bit set.
2046 * If the fcf record is re-read for any reason this flag is cleared brfore
2047 * adding it to the priority list.
2050 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba
*phba
, uint16_t fcf_index
)
2052 struct lpfc_fcf_pri
*new_fcf_pri
;
2053 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2054 spin_lock_irq(&phba
->hbalock
);
2055 new_fcf_pri
->fcf_rec
.flag
|= LPFC_FCF_FLOGI_FAILED
;
2056 spin_unlock_irq(&phba
->hbalock
);
2060 * lpfc_sli4_fcf_pri_list_add
2061 * @phba: pointer to lpfc hba data structure.
2062 * @fcf_index the index of the fcf record to add
2063 * This routine checks the priority of the fcf_index to be added.
2064 * If it is a lower priority than the current head of the fcf_pri list
2065 * then it is added to the list in the right order.
2066 * If it is the same priority as the current head of the list then it
2067 * is added to the head of the list and its bit in the rr_bmask is set.
2068 * If the fcf_index to be added is of a higher priority than the current
2069 * head of the list then the rr_bmask is cleared, its bit is set in the
2070 * rr_bmask and it is added to the head of the list.
2072 * 0=success 1=failure
2074 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba
*phba
,
2076 struct fcf_record
*new_fcf_record
)
2078 uint16_t current_fcf_pri
;
2079 uint16_t last_index
;
2080 struct lpfc_fcf_pri
*fcf_pri
;
2081 struct lpfc_fcf_pri
*next_fcf_pri
;
2082 struct lpfc_fcf_pri
*new_fcf_pri
;
2085 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2086 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2087 "3059 adding idx x%x pri x%x flg x%x\n",
2088 fcf_index
, new_fcf_record
->fip_priority
,
2089 new_fcf_pri
->fcf_rec
.flag
);
2090 spin_lock_irq(&phba
->hbalock
);
2091 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
)
2092 list_del_init(&new_fcf_pri
->list
);
2093 new_fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
2094 new_fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
2095 if (list_empty(&phba
->fcf
.fcf_pri_list
)) {
2096 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2097 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2098 new_fcf_pri
->fcf_rec
.fcf_index
);
2102 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
2103 LPFC_SLI4_FCF_TBL_INDX_MAX
);
2104 if (last_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
2105 ret
= 0; /* Empty rr list */
2108 current_fcf_pri
= phba
->fcf
.fcf_pri
[last_index
].fcf_rec
.priority
;
2109 if (new_fcf_pri
->fcf_rec
.priority
<= current_fcf_pri
) {
2110 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2111 if (new_fcf_pri
->fcf_rec
.priority
< current_fcf_pri
) {
2112 memset(phba
->fcf
.fcf_rr_bmask
, 0,
2113 sizeof(*phba
->fcf
.fcf_rr_bmask
));
2114 /* fcfs_at_this_priority_level = 1; */
2115 phba
->fcf
.eligible_fcf_cnt
= 1;
2117 /* fcfs_at_this_priority_level++; */
2118 phba
->fcf
.eligible_fcf_cnt
++;
2119 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2120 new_fcf_pri
->fcf_rec
.fcf_index
);
2124 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
2125 &phba
->fcf
.fcf_pri_list
, list
) {
2126 if (new_fcf_pri
->fcf_rec
.priority
<=
2127 fcf_pri
->fcf_rec
.priority
) {
2128 if (fcf_pri
->list
.prev
== &phba
->fcf
.fcf_pri_list
)
2129 list_add(&new_fcf_pri
->list
,
2130 &phba
->fcf
.fcf_pri_list
);
2132 list_add(&new_fcf_pri
->list
,
2133 &((struct lpfc_fcf_pri
*)
2134 fcf_pri
->list
.prev
)->list
);
2137 } else if (fcf_pri
->list
.next
== &phba
->fcf
.fcf_pri_list
2138 || new_fcf_pri
->fcf_rec
.priority
<
2139 next_fcf_pri
->fcf_rec
.priority
) {
2140 list_add(&new_fcf_pri
->list
, &fcf_pri
->list
);
2144 if (new_fcf_pri
->fcf_rec
.priority
> fcf_pri
->fcf_rec
.priority
)
2150 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2151 new_fcf_pri
->fcf_rec
.flag
= LPFC_FCF_ON_PRI_LIST
;
2152 spin_unlock_irq(&phba
->hbalock
);
2157 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2158 * @phba: pointer to lpfc hba data structure.
2159 * @mboxq: pointer to mailbox object.
2161 * This function iterates through all the fcf records available in
2162 * HBA and chooses the optimal FCF record for discovery. After finding
2163 * the FCF for discovery it registers the FCF record and kicks start
2165 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2166 * use an FCF record which matches fabric name and mac address of the
2167 * currently used FCF record.
2168 * If the driver supports only one FCF, it will try to use the FCF record
2169 * used by BOOT_BIOS.
2172 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2174 struct fcf_record
*new_fcf_record
;
2175 uint32_t boot_flag
, addr_mode
;
2176 uint16_t fcf_index
, next_fcf_index
;
2177 struct lpfc_fcf_rec
*fcf_rec
= NULL
;
2178 uint16_t vlan_id
= LPFC_FCOE_NULL_VID
;
2179 bool select_new_fcf
;
2182 /* If there is pending FCoE event restart FCF table scan */
2183 if (lpfc_check_pending_fcoe_event(phba
, LPFC_SKIP_UNREG_FCF
)) {
2184 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2188 /* Parse the FCF record from the non-embedded mailbox command */
2189 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2191 if (!new_fcf_record
) {
2192 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2193 "2765 Mailbox command READ_FCF_RECORD "
2194 "failed to retrieve a FCF record.\n");
2195 /* Let next new FCF event trigger fast failover */
2196 spin_lock_irq(&phba
->hbalock
);
2197 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2198 spin_unlock_irq(&phba
->hbalock
);
2199 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2203 /* Check the FCF record against the connection list */
2204 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2205 &addr_mode
, &vlan_id
);
2207 /* Log the FCF record information if turned on */
2208 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2212 * If the fcf record does not match with connect list entries
2213 * read the next entry; otherwise, this is an eligible FCF
2214 * record for roundrobin FCF failover.
2217 lpfc_sli4_fcf_pri_list_del(phba
,
2218 bf_get(lpfc_fcf_record_fcf_index
,
2220 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2221 "2781 FCF (x%x) failed connection "
2222 "list check: (x%x/x%x/%x)\n",
2223 bf_get(lpfc_fcf_record_fcf_index
,
2225 bf_get(lpfc_fcf_record_fcf_avail
,
2227 bf_get(lpfc_fcf_record_fcf_valid
,
2229 bf_get(lpfc_fcf_record_fcf_sol
,
2231 if ((phba
->fcf
.fcf_flag
& FCF_IN_USE
) &&
2232 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2233 new_fcf_record
, LPFC_FCOE_IGNORE_VID
)) {
2234 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) !=
2235 phba
->fcf
.current_rec
.fcf_indx
) {
2236 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2237 "2862 FCF (x%x) matches property "
2238 "of in-use FCF (x%x)\n",
2239 bf_get(lpfc_fcf_record_fcf_index
,
2241 phba
->fcf
.current_rec
.fcf_indx
);
2245 * In case the current in-use FCF record becomes
2246 * invalid/unavailable during FCF discovery that
2247 * was not triggered by fast FCF failover process,
2248 * treat it as fast FCF failover.
2250 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
) &&
2251 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2252 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2253 "2835 Invalid in-use FCF "
2254 "(x%x), enter FCF failover "
2256 phba
->fcf
.current_rec
.fcf_indx
);
2257 spin_lock_irq(&phba
->hbalock
);
2258 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2259 spin_unlock_irq(&phba
->hbalock
);
2260 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2261 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2262 LPFC_FCOE_FCF_GET_FIRST
);
2268 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2269 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
,
2276 * If this is not the first FCF discovery of the HBA, use last
2277 * FCF record for the discovery. The condition that a rescan
2278 * matches the in-use FCF record: fabric name, switch name, mac
2279 * address, and vlan_id.
2281 spin_lock_irq(&phba
->hbalock
);
2282 if (phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2283 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2284 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2285 new_fcf_record
, vlan_id
)) {
2286 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) ==
2287 phba
->fcf
.current_rec
.fcf_indx
) {
2288 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2289 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)
2290 /* Stop FCF redisc wait timer */
2291 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2293 else if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2294 /* Fast failover, mark completed */
2295 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2296 spin_unlock_irq(&phba
->hbalock
);
2297 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2298 "2836 New FCF matches in-use "
2299 "FCF (x%x), port_state:x%x, "
2301 phba
->fcf
.current_rec
.fcf_indx
,
2302 phba
->pport
->port_state
,
2303 phba
->pport
->fc_flag
);
2306 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2307 "2863 New FCF (x%x) matches "
2308 "property of in-use FCF (x%x)\n",
2309 bf_get(lpfc_fcf_record_fcf_index
,
2311 phba
->fcf
.current_rec
.fcf_indx
);
2314 * Read next FCF record from HBA searching for the matching
2315 * with in-use record only if not during the fast failover
2316 * period. In case of fast failover period, it shall try to
2317 * determine whether the FCF record just read should be the
2320 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2321 spin_unlock_irq(&phba
->hbalock
);
2326 * Update on failover FCF record only if it's in FCF fast-failover
2327 * period; otherwise, update on current FCF record.
2329 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2330 fcf_rec
= &phba
->fcf
.failover_rec
;
2332 fcf_rec
= &phba
->fcf
.current_rec
;
2334 if (phba
->fcf
.fcf_flag
& FCF_AVAILABLE
) {
2336 * If the driver FCF record does not have boot flag
2337 * set and new hba fcf record has boot flag set, use
2338 * the new hba fcf record.
2340 if (boot_flag
&& !(fcf_rec
->flag
& BOOT_ENABLE
)) {
2341 /* Choose this FCF record */
2342 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2343 "2837 Update current FCF record "
2344 "(x%x) with new FCF record (x%x)\n",
2346 bf_get(lpfc_fcf_record_fcf_index
,
2348 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2349 addr_mode
, vlan_id
, BOOT_ENABLE
);
2350 spin_unlock_irq(&phba
->hbalock
);
2354 * If the driver FCF record has boot flag set and the
2355 * new hba FCF record does not have boot flag, read
2356 * the next FCF record.
2358 if (!boot_flag
&& (fcf_rec
->flag
& BOOT_ENABLE
)) {
2359 spin_unlock_irq(&phba
->hbalock
);
2363 * If the new hba FCF record has lower priority value
2364 * than the driver FCF record, use the new record.
2366 if (new_fcf_record
->fip_priority
< fcf_rec
->priority
) {
2367 /* Choose the new FCF record with lower priority */
2368 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2369 "2838 Update current FCF record "
2370 "(x%x) with new FCF record (x%x)\n",
2372 bf_get(lpfc_fcf_record_fcf_index
,
2374 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2375 addr_mode
, vlan_id
, 0);
2376 /* Reset running random FCF selection count */
2377 phba
->fcf
.eligible_fcf_cnt
= 1;
2378 } else if (new_fcf_record
->fip_priority
== fcf_rec
->priority
) {
2379 /* Update running random FCF selection count */
2380 phba
->fcf
.eligible_fcf_cnt
++;
2381 select_new_fcf
= lpfc_sli4_new_fcf_random_select(phba
,
2382 phba
->fcf
.eligible_fcf_cnt
);
2383 if (select_new_fcf
) {
2384 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2385 "2839 Update current FCF record "
2386 "(x%x) with new FCF record (x%x)\n",
2388 bf_get(lpfc_fcf_record_fcf_index
,
2390 /* Choose the new FCF by random selection */
2391 __lpfc_update_fcf_record(phba
, fcf_rec
,
2393 addr_mode
, vlan_id
, 0);
2396 spin_unlock_irq(&phba
->hbalock
);
2400 * This is the first suitable FCF record, choose this record for
2401 * initial best-fit FCF.
2404 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2405 "2840 Update initial FCF candidate "
2407 bf_get(lpfc_fcf_record_fcf_index
,
2409 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2410 addr_mode
, vlan_id
, (boot_flag
?
2412 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2413 /* Setup initial running random FCF selection count */
2414 phba
->fcf
.eligible_fcf_cnt
= 1;
2416 spin_unlock_irq(&phba
->hbalock
);
2420 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2421 if (next_fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
|| next_fcf_index
== 0) {
2422 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
) {
2424 * Case of FCF fast failover scan
2428 * It has not found any suitable FCF record, cancel
2429 * FCF scan inprogress, and do nothing
2431 if (!(phba
->fcf
.failover_rec
.flag
& RECORD_VALID
)) {
2432 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2433 "2782 No suitable FCF found: "
2435 phba
->fcoe_eventtag_at_fcf_scan
,
2436 bf_get(lpfc_fcf_record_fcf_index
,
2438 spin_lock_irq(&phba
->hbalock
);
2439 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
2440 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2441 spin_unlock_irq(&phba
->hbalock
);
2442 /* Unregister in-use FCF and rescan */
2443 lpfc_printf_log(phba
, KERN_INFO
,
2445 "2864 On devloss tmo "
2446 "unreg in-use FCF and "
2447 "rescan FCF table\n");
2448 lpfc_unregister_fcf_rescan(phba
);
2452 * Let next new FCF event trigger fast failover
2454 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2455 spin_unlock_irq(&phba
->hbalock
);
2459 * It has found a suitable FCF record that is not
2460 * the same as in-use FCF record, unregister the
2461 * in-use FCF record, replace the in-use FCF record
2462 * with the new FCF record, mark FCF fast failover
2463 * completed, and then start register the new FCF
2467 /* Unregister the current in-use FCF record */
2468 lpfc_unregister_fcf(phba
);
2470 /* Replace in-use record with the new record */
2471 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2472 "2842 Replace in-use FCF (x%x) "
2473 "with failover FCF (x%x)\n",
2474 phba
->fcf
.current_rec
.fcf_indx
,
2475 phba
->fcf
.failover_rec
.fcf_indx
);
2476 memcpy(&phba
->fcf
.current_rec
,
2477 &phba
->fcf
.failover_rec
,
2478 sizeof(struct lpfc_fcf_rec
));
2480 * Mark the fast FCF failover rediscovery completed
2481 * and the start of the first round of the roundrobin
2484 spin_lock_irq(&phba
->hbalock
);
2485 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2486 spin_unlock_irq(&phba
->hbalock
);
2487 /* Register to the new FCF record */
2488 lpfc_register_fcf(phba
);
2491 * In case of transaction period to fast FCF failover,
2492 * do nothing when search to the end of the FCF table.
2494 if ((phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) ||
2495 (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
))
2498 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2499 phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2501 * In case the current in-use FCF record no
2502 * longer existed during FCF discovery that
2503 * was not triggered by fast FCF failover
2504 * process, treat it as fast FCF failover.
2506 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2507 "2841 In-use FCF record (x%x) "
2508 "not reported, entering fast "
2509 "FCF failover mode scanning.\n",
2510 phba
->fcf
.current_rec
.fcf_indx
);
2511 spin_lock_irq(&phba
->hbalock
);
2512 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2513 spin_unlock_irq(&phba
->hbalock
);
2514 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2515 LPFC_FCOE_FCF_GET_FIRST
);
2518 /* Register to the new FCF record */
2519 lpfc_register_fcf(phba
);
2522 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, next_fcf_index
);
2526 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2527 lpfc_register_fcf(phba
);
2533 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2534 * @phba: pointer to lpfc hba data structure.
2535 * @mboxq: pointer to mailbox object.
2537 * This is the callback function for FLOGI failure roundrobin FCF failover
2538 * read FCF record mailbox command from the eligible FCF record bmask for
2539 * performing the failover. If the FCF read back is not valid/available, it
2540 * fails through to retrying FLOGI to the currently registered FCF again.
2541 * Otherwise, if the FCF read back is valid and available, it will set the
2542 * newly read FCF record to the failover FCF record, unregister currently
2543 * registered FCF record, copy the failover FCF record to the current
2544 * FCF record, and then register the current FCF record before proceeding
2545 * to trying FLOGI on the new failover FCF.
2548 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2550 struct fcf_record
*new_fcf_record
;
2551 uint32_t boot_flag
, addr_mode
;
2552 uint16_t next_fcf_index
, fcf_index
;
2553 uint16_t current_fcf_index
;
2557 /* If link state is not up, stop the roundrobin failover process */
2558 if (phba
->link_state
< LPFC_LINK_UP
) {
2559 spin_lock_irq(&phba
->hbalock
);
2560 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
2561 phba
->hba_flag
&= ~FCF_RR_INPROG
;
2562 spin_unlock_irq(&phba
->hbalock
);
2566 /* Parse the FCF record from the non-embedded mailbox command */
2567 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2569 if (!new_fcf_record
) {
2570 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2571 "2766 Mailbox command READ_FCF_RECORD "
2572 "failed to retrieve a FCF record. "
2573 "hba_flg x%x fcf_flg x%x\n", phba
->hba_flag
,
2574 phba
->fcf
.fcf_flag
);
2575 lpfc_unregister_fcf_rescan(phba
);
2579 /* Get the needed parameters from FCF record */
2580 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2581 &addr_mode
, &vlan_id
);
2583 /* Log the FCF record information if turned on */
2584 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2587 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2589 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2590 "2848 Remove ineligible FCF (x%x) from "
2591 "from roundrobin bmask\n", fcf_index
);
2592 /* Clear roundrobin bmask bit for ineligible FCF */
2593 lpfc_sli4_fcf_rr_index_clear(phba
, fcf_index
);
2594 /* Perform next round of roundrobin FCF failover */
2595 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
2596 rc
= lpfc_sli4_fcf_rr_next_proc(phba
->pport
, fcf_index
);
2602 if (fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
2603 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2604 "2760 Perform FLOGI roundrobin FCF failover: "
2605 "FCF (x%x) back to FCF (x%x)\n",
2606 phba
->fcf
.current_rec
.fcf_indx
, fcf_index
);
2607 /* Wait 500 ms before retrying FLOGI to current FCF */
2609 lpfc_issue_init_vfi(phba
->pport
);
2613 /* Upload new FCF record to the failover FCF record */
2614 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2615 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2616 phba
->fcf
.failover_rec
.fcf_indx
, fcf_index
);
2617 spin_lock_irq(&phba
->hbalock
);
2618 __lpfc_update_fcf_record(phba
, &phba
->fcf
.failover_rec
,
2619 new_fcf_record
, addr_mode
, vlan_id
,
2620 (boot_flag
? BOOT_ENABLE
: 0));
2621 spin_unlock_irq(&phba
->hbalock
);
2623 current_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
2625 /* Unregister the current in-use FCF record */
2626 lpfc_unregister_fcf(phba
);
2628 /* Replace in-use record with the new record */
2629 memcpy(&phba
->fcf
.current_rec
, &phba
->fcf
.failover_rec
,
2630 sizeof(struct lpfc_fcf_rec
));
2632 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2633 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2634 "(x%x) to FCF (x%x)\n", current_fcf_index
, fcf_index
);
2637 lpfc_register_fcf(phba
);
2639 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2643 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2644 * @phba: pointer to lpfc hba data structure.
2645 * @mboxq: pointer to mailbox object.
2647 * This is the callback function of read FCF record mailbox command for
2648 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2649 * failover when a new FCF event happened. If the FCF read back is
2650 * valid/available and it passes the connection list check, it updates
2651 * the bmask for the eligible FCF record for roundrobin failover.
2654 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2656 struct fcf_record
*new_fcf_record
;
2657 uint32_t boot_flag
, addr_mode
;
2658 uint16_t fcf_index
, next_fcf_index
;
2662 /* If link state is not up, no need to proceed */
2663 if (phba
->link_state
< LPFC_LINK_UP
)
2666 /* If FCF discovery period is over, no need to proceed */
2667 if (!(phba
->fcf
.fcf_flag
& FCF_DISCOVERY
))
2670 /* Parse the FCF record from the non-embedded mailbox command */
2671 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2673 if (!new_fcf_record
) {
2674 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2675 "2767 Mailbox command READ_FCF_RECORD "
2676 "failed to retrieve a FCF record.\n");
2680 /* Check the connection list for eligibility */
2681 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2682 &addr_mode
, &vlan_id
);
2684 /* Log the FCF record information if turned on */
2685 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2691 /* Update the eligible FCF record index bmask */
2692 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2694 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
, new_fcf_record
);
2697 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2701 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2702 * @phba: pointer to lpfc hba data structure.
2703 * @mboxq: pointer to mailbox data structure.
2705 * This function handles completion of init vfi mailbox command.
2708 lpfc_init_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2710 struct lpfc_vport
*vport
= mboxq
->vport
;
2713 * VFI not supported on interface type 0, just do the flogi
2714 * Also continue if the VFI is in use - just use the same one.
2716 if (mboxq
->u
.mb
.mbxStatus
&&
2717 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2718 LPFC_SLI_INTF_IF_TYPE_0
) &&
2719 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2720 lpfc_printf_vlog(vport
, KERN_ERR
,
2722 "2891 Init VFI mailbox failed 0x%x\n",
2723 mboxq
->u
.mb
.mbxStatus
);
2724 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2725 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2729 lpfc_initial_flogi(vport
);
2730 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2735 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2736 * @vport: pointer to lpfc_vport data structure.
2738 * This function issue a init_vfi mailbox command to initialize the VFI and
2739 * VPI for the physical port.
2742 lpfc_issue_init_vfi(struct lpfc_vport
*vport
)
2744 LPFC_MBOXQ_t
*mboxq
;
2746 struct lpfc_hba
*phba
= vport
->phba
;
2748 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2750 lpfc_printf_vlog(vport
, KERN_ERR
,
2751 LOG_MBOX
, "2892 Failed to allocate "
2752 "init_vfi mailbox\n");
2755 lpfc_init_vfi(mboxq
, vport
);
2756 mboxq
->mbox_cmpl
= lpfc_init_vfi_cmpl
;
2757 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
2758 if (rc
== MBX_NOT_FINISHED
) {
2759 lpfc_printf_vlog(vport
, KERN_ERR
,
2760 LOG_MBOX
, "2893 Failed to issue init_vfi mailbox\n");
2761 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2766 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2767 * @phba: pointer to lpfc hba data structure.
2768 * @mboxq: pointer to mailbox data structure.
2770 * This function handles completion of init vpi mailbox command.
2773 lpfc_init_vpi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2775 struct lpfc_vport
*vport
= mboxq
->vport
;
2776 struct lpfc_nodelist
*ndlp
;
2777 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2779 if (mboxq
->u
.mb
.mbxStatus
) {
2780 lpfc_printf_vlog(vport
, KERN_ERR
,
2782 "2609 Init VPI mailbox failed 0x%x\n",
2783 mboxq
->u
.mb
.mbxStatus
);
2784 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2785 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2788 spin_lock_irq(shost
->host_lock
);
2789 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2790 spin_unlock_irq(shost
->host_lock
);
2792 /* If this port is physical port or FDISC is done, do reg_vpi */
2793 if ((phba
->pport
== vport
) || (vport
->port_state
== LPFC_FDISC
)) {
2794 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
2796 lpfc_printf_vlog(vport
, KERN_ERR
,
2798 "2731 Cannot find fabric "
2799 "controller node\n");
2801 lpfc_register_new_vport(phba
, vport
, ndlp
);
2802 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2806 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2807 lpfc_initial_fdisc(vport
);
2809 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
2810 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2811 "2606 No NPIV Fabric support\n");
2813 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2818 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2819 * @vport: pointer to lpfc_vport data structure.
2821 * This function issue a init_vpi mailbox command to initialize
2822 * VPI for the vport.
2825 lpfc_issue_init_vpi(struct lpfc_vport
*vport
)
2827 LPFC_MBOXQ_t
*mboxq
;
2830 if ((vport
->port_type
!= LPFC_PHYSICAL_PORT
) && (!vport
->vpi
)) {
2831 vpi
= lpfc_alloc_vpi(vport
->phba
);
2833 lpfc_printf_vlog(vport
, KERN_ERR
,
2835 "3303 Failed to obtain vport vpi\n");
2836 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2842 mboxq
= mempool_alloc(vport
->phba
->mbox_mem_pool
, GFP_KERNEL
);
2844 lpfc_printf_vlog(vport
, KERN_ERR
,
2845 LOG_MBOX
, "2607 Failed to allocate "
2846 "init_vpi mailbox\n");
2849 lpfc_init_vpi(vport
->phba
, mboxq
, vport
->vpi
);
2850 mboxq
->vport
= vport
;
2851 mboxq
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
2852 rc
= lpfc_sli_issue_mbox(vport
->phba
, mboxq
, MBX_NOWAIT
);
2853 if (rc
== MBX_NOT_FINISHED
) {
2854 lpfc_printf_vlog(vport
, KERN_ERR
,
2855 LOG_MBOX
, "2608 Failed to issue init_vpi mailbox\n");
2856 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2861 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2862 * @phba: pointer to lpfc hba data structure.
2864 * This function loops through the list of vports on the @phba and issues an
2865 * FDISC if possible.
2868 lpfc_start_fdiscs(struct lpfc_hba
*phba
)
2870 struct lpfc_vport
**vports
;
2873 vports
= lpfc_create_vport_work_array(phba
);
2874 if (vports
!= NULL
) {
2875 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2876 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
2878 /* There are no vpi for this vport */
2879 if (vports
[i
]->vpi
> phba
->max_vpi
) {
2880 lpfc_vport_set_state(vports
[i
],
2884 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2885 lpfc_vport_set_state(vports
[i
],
2889 if (vports
[i
]->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
) {
2890 lpfc_issue_init_vpi(vports
[i
]);
2893 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2894 lpfc_initial_fdisc(vports
[i
]);
2896 lpfc_vport_set_state(vports
[i
],
2897 FC_VPORT_NO_FABRIC_SUPP
);
2898 lpfc_printf_vlog(vports
[i
], KERN_ERR
,
2901 "Fabric support\n");
2905 lpfc_destroy_vport_work_array(phba
, vports
);
2909 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2911 struct lpfc_dmabuf
*dmabuf
= mboxq
->context1
;
2912 struct lpfc_vport
*vport
= mboxq
->vport
;
2913 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2916 * VFI not supported for interface type 0, so ignore any mailbox
2917 * error (except VFI in use) and continue with the discovery.
2919 if (mboxq
->u
.mb
.mbxStatus
&&
2920 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2921 LPFC_SLI_INTF_IF_TYPE_0
) &&
2922 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2923 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
2924 "2018 REG_VFI mbxStatus error x%x "
2926 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
2927 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2928 /* FLOGI failed, use loop map to make discovery list */
2929 lpfc_disc_list_loopmap(vport
);
2930 /* Start discovery */
2931 lpfc_disc_start(vport
);
2934 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2938 /* If the VFI is already registered, there is nothing else to do
2939 * Unless this was a VFI update and we are in PT2PT mode, then
2940 * we should drop through to set the port state to ready.
2942 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
2943 if (!(phba
->sli_rev
== LPFC_SLI_REV4
&&
2944 vport
->fc_flag
& FC_PT2PT
))
2947 /* The VPI is implicitly registered when the VFI is registered */
2948 spin_lock_irq(shost
->host_lock
);
2949 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2950 vport
->fc_flag
|= FC_VFI_REGISTERED
;
2951 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2952 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2953 spin_unlock_irq(shost
->host_lock
);
2955 /* In case SLI4 FC loopback test, we are ready */
2956 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
2957 (phba
->link_flag
& LS_LOOPBACK_MODE
)) {
2958 phba
->link_state
= LPFC_HBA_READY
;
2962 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
2963 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2964 "alpacnt:%d LinkState:%x topology:%x\n",
2965 vport
->port_state
, vport
->fc_flag
, vport
->fc_myDID
,
2966 vport
->phba
->alpa_map
[0],
2967 phba
->link_state
, phba
->fc_topology
);
2969 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
2971 * For private loop or for NPort pt2pt,
2972 * just start discovery and we are done.
2974 if ((vport
->fc_flag
& FC_PT2PT
) ||
2975 ((phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) &&
2976 !(vport
->fc_flag
& FC_PUBLIC_LOOP
))) {
2978 /* Use loop map to make discovery list */
2979 lpfc_disc_list_loopmap(vport
);
2980 /* Start discovery */
2981 if (vport
->fc_flag
& FC_PT2PT
)
2982 vport
->port_state
= LPFC_VPORT_READY
;
2984 lpfc_disc_start(vport
);
2986 lpfc_start_fdiscs(phba
);
2987 lpfc_do_scr_ns_plogi(phba
, vport
);
2992 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2994 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
3001 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3003 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3004 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
3005 struct lpfc_vport
*vport
= pmb
->vport
;
3006 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3007 struct serv_parm
*sp
= &vport
->fc_sparam
;
3010 /* Check for error */
3011 if (mb
->mbxStatus
) {
3012 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3013 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3014 "0319 READ_SPARAM mbxStatus error x%x "
3016 mb
->mbxStatus
, vport
->port_state
);
3017 lpfc_linkdown(phba
);
3021 memcpy((uint8_t *) &vport
->fc_sparam
, (uint8_t *) mp
->virt
,
3022 sizeof (struct serv_parm
));
3024 ed_tov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
3025 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
3026 ed_tov
= (ed_tov
+ 999999) / 1000000;
3028 phba
->fc_edtov
= ed_tov
;
3029 phba
->fc_ratov
= (2 * ed_tov
) / 1000;
3030 if (phba
->fc_ratov
< FF_DEF_RATOV
) {
3031 /* RA_TOV should be atleast 10sec for initial flogi */
3032 phba
->fc_ratov
= FF_DEF_RATOV
;
3035 lpfc_update_vport_wwn(vport
);
3036 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
3037 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
3038 memcpy(&phba
->wwnn
, &vport
->fc_nodename
, sizeof(phba
->wwnn
));
3039 memcpy(&phba
->wwpn
, &vport
->fc_portname
, sizeof(phba
->wwnn
));
3042 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3044 mempool_free(pmb
, phba
->mbox_mem_pool
);
3048 pmb
->context1
= NULL
;
3049 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3051 lpfc_issue_clear_la(phba
, vport
);
3052 mempool_free(pmb
, phba
->mbox_mem_pool
);
3057 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, struct lpfc_mbx_read_top
*la
)
3059 struct lpfc_vport
*vport
= phba
->pport
;
3060 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
= NULL
;
3061 struct Scsi_Host
*shost
;
3063 struct lpfc_dmabuf
*mp
;
3065 struct fcf_record
*fcf_record
;
3066 uint32_t fc_flags
= 0;
3068 spin_lock_irq(&phba
->hbalock
);
3069 phba
->fc_linkspeed
= bf_get(lpfc_mbx_read_top_link_spd
, la
);
3071 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3072 switch (bf_get(lpfc_mbx_read_top_link_spd
, la
)) {
3073 case LPFC_LINK_SPEED_1GHZ
:
3074 case LPFC_LINK_SPEED_2GHZ
:
3075 case LPFC_LINK_SPEED_4GHZ
:
3076 case LPFC_LINK_SPEED_8GHZ
:
3077 case LPFC_LINK_SPEED_10GHZ
:
3078 case LPFC_LINK_SPEED_16GHZ
:
3079 case LPFC_LINK_SPEED_32GHZ
:
3082 phba
->fc_linkspeed
= LPFC_LINK_SPEED_UNKNOWN
;
3087 if (phba
->fc_topology
&&
3088 phba
->fc_topology
!= bf_get(lpfc_mbx_read_top_topology
, la
)) {
3089 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3090 "3314 Toplogy changed was 0x%x is 0x%x\n",
3092 bf_get(lpfc_mbx_read_top_topology
, la
));
3093 phba
->fc_topology_changed
= 1;
3096 phba
->fc_topology
= bf_get(lpfc_mbx_read_top_topology
, la
);
3097 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
3099 shost
= lpfc_shost_from_vport(vport
);
3100 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3101 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
3103 /* if npiv is enabled and this adapter supports npiv log
3104 * a message that npiv is not supported in this topology
3106 if (phba
->cfg_enable_npiv
&& phba
->max_vpi
)
3107 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3108 "1309 Link Up Event npiv not supported in loop "
3110 /* Get Loop Map information */
3111 if (bf_get(lpfc_mbx_read_top_il
, la
))
3112 fc_flags
|= FC_LBIT
;
3114 vport
->fc_myDID
= bf_get(lpfc_mbx_read_top_alpa_granted
, la
);
3115 i
= la
->lilpBde64
.tus
.f
.bdeSize
;
3118 phba
->alpa_map
[0] = 0;
3120 if (vport
->cfg_log_verbose
& LOG_LINK_EVENT
) {
3131 numalpa
= phba
->alpa_map
[0];
3133 while (j
< numalpa
) {
3134 memset(un
.pamap
, 0, 16);
3135 for (k
= 1; j
< numalpa
; k
++) {
3137 phba
->alpa_map
[j
+ 1];
3142 /* Link Up Event ALPA map */
3143 lpfc_printf_log(phba
,
3146 "1304 Link Up Event "
3147 "ALPA map Data: x%x "
3149 un
.pa
.wd1
, un
.pa
.wd2
,
3150 un
.pa
.wd3
, un
.pa
.wd4
);
3155 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)) {
3156 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
3157 (phba
->sli_rev
>= LPFC_SLI_REV3
))
3158 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3160 vport
->fc_myDID
= phba
->fc_pref_DID
;
3161 fc_flags
|= FC_LBIT
;
3163 spin_unlock_irq(&phba
->hbalock
);
3166 spin_lock_irq(shost
->host_lock
);
3167 vport
->fc_flag
|= fc_flags
;
3168 spin_unlock_irq(shost
->host_lock
);
3172 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3176 rc
= lpfc_read_sparam(phba
, sparam_mbox
, 0);
3178 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3181 sparam_mbox
->vport
= vport
;
3182 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
3183 rc
= lpfc_sli_issue_mbox(phba
, sparam_mbox
, MBX_NOWAIT
);
3184 if (rc
== MBX_NOT_FINISHED
) {
3185 mp
= (struct lpfc_dmabuf
*) sparam_mbox
->context1
;
3186 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3188 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3192 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3193 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3196 vport
->port_state
= LPFC_LOCAL_CFG_LINK
;
3197 lpfc_config_link(phba
, cfglink_mbox
);
3198 cfglink_mbox
->vport
= vport
;
3199 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
3200 rc
= lpfc_sli_issue_mbox(phba
, cfglink_mbox
, MBX_NOWAIT
);
3201 if (rc
== MBX_NOT_FINISHED
) {
3202 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
3206 vport
->port_state
= LPFC_VPORT_UNKNOWN
;
3208 * Add the driver's default FCF record at FCF index 0 now. This
3209 * is phase 1 implementation that support FCF index 0 and driver
3212 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
3213 fcf_record
= kzalloc(sizeof(struct fcf_record
),
3215 if (unlikely(!fcf_record
)) {
3216 lpfc_printf_log(phba
, KERN_ERR
,
3218 "2554 Could not allocate memory for "
3224 lpfc_sli4_build_dflt_fcf_record(phba
, fcf_record
,
3225 LPFC_FCOE_FCF_DEF_INDEX
);
3226 rc
= lpfc_sli4_add_fcf_record(phba
, fcf_record
);
3228 lpfc_printf_log(phba
, KERN_ERR
,
3230 "2013 Could not manually add FCF "
3231 "record 0, status %d\n", rc
);
3239 * The driver is expected to do FIP/FCF. Call the port
3240 * and get the FCF Table.
3242 spin_lock_irq(&phba
->hbalock
);
3243 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3244 spin_unlock_irq(&phba
->hbalock
);
3247 /* This is the initial FCF discovery scan */
3248 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
3249 spin_unlock_irq(&phba
->hbalock
);
3250 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3251 "2778 Start FCF table scan at linkup\n");
3252 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3253 LPFC_FCOE_FCF_GET_FIRST
);
3255 spin_lock_irq(&phba
->hbalock
);
3256 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
3257 spin_unlock_irq(&phba
->hbalock
);
3260 /* Reset FCF roundrobin bmask for new discovery */
3261 lpfc_sli4_clear_fcf_rr_bmask(phba
);
3266 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3267 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3268 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3269 vport
->port_state
, sparam_mbox
, cfglink_mbox
);
3270 lpfc_issue_clear_la(phba
, vport
);
3275 lpfc_enable_la(struct lpfc_hba
*phba
)
3278 struct lpfc_sli
*psli
= &phba
->sli
;
3279 spin_lock_irq(&phba
->hbalock
);
3280 psli
->sli_flag
|= LPFC_PROCESS_LA
;
3281 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
3282 control
= readl(phba
->HCregaddr
);
3283 control
|= HC_LAINT_ENA
;
3284 writel(control
, phba
->HCregaddr
);
3285 readl(phba
->HCregaddr
); /* flush */
3287 spin_unlock_irq(&phba
->hbalock
);
3291 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
)
3293 lpfc_linkdown(phba
);
3294 lpfc_enable_la(phba
);
3295 lpfc_unregister_unused_fcf(phba
);
3296 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3301 * This routine handles processing a READ_TOPOLOGY mailbox
3302 * command upon completion. It is setup in the LPFC_MBOXQ
3303 * as the completion routine when the command is
3304 * handed off to the SLI layer. SLI4 only.
3307 lpfc_mbx_cmpl_read_topology(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3309 struct lpfc_vport
*vport
= pmb
->vport
;
3310 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3311 struct lpfc_mbx_read_top
*la
;
3312 struct lpfc_sli_ring
*pring
;
3313 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3314 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3317 /* Unblock ELS traffic */
3318 pring
= lpfc_phba_elsring(phba
);
3319 pring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
3321 /* Check for error */
3322 if (mb
->mbxStatus
) {
3323 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3324 "1307 READ_LA mbox error x%x state x%x\n",
3325 mb
->mbxStatus
, vport
->port_state
);
3326 lpfc_mbx_issue_link_down(phba
);
3327 phba
->link_state
= LPFC_HBA_ERROR
;
3328 goto lpfc_mbx_cmpl_read_topology_free_mbuf
;
3331 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3332 attn_type
= bf_get(lpfc_mbx_read_top_att_type
, la
);
3334 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
3336 spin_lock_irq(shost
->host_lock
);
3337 if (bf_get(lpfc_mbx_read_top_pb
, la
))
3338 vport
->fc_flag
|= FC_BYPASSED_MODE
;
3340 vport
->fc_flag
&= ~FC_BYPASSED_MODE
;
3341 spin_unlock_irq(shost
->host_lock
);
3343 if (phba
->fc_eventTag
<= la
->eventTag
) {
3344 phba
->fc_stat
.LinkMultiEvent
++;
3345 if (attn_type
== LPFC_ATT_LINK_UP
)
3346 if (phba
->fc_eventTag
!= 0)
3347 lpfc_linkdown(phba
);
3350 phba
->fc_eventTag
= la
->eventTag
;
3351 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
3352 spin_lock_irq(&phba
->hbalock
);
3353 if (bf_get(lpfc_mbx_read_top_mm
, la
))
3354 phba
->sli
.sli_flag
|= LPFC_MENLO_MAINT
;
3356 phba
->sli
.sli_flag
&= ~LPFC_MENLO_MAINT
;
3357 spin_unlock_irq(&phba
->hbalock
);
3360 phba
->link_events
++;
3361 if ((attn_type
== LPFC_ATT_LINK_UP
) &&
3362 !(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
)) {
3363 phba
->fc_stat
.LinkUp
++;
3364 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
3365 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3366 "1306 Link Up Event in loop back mode "
3367 "x%x received Data: x%x x%x x%x x%x\n",
3368 la
->eventTag
, phba
->fc_eventTag
,
3369 bf_get(lpfc_mbx_read_top_alpa_granted
,
3371 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3374 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3375 "1303 Link Up Event x%x received "
3376 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3377 la
->eventTag
, phba
->fc_eventTag
,
3378 bf_get(lpfc_mbx_read_top_alpa_granted
,
3380 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3382 bf_get(lpfc_mbx_read_top_mm
, la
),
3383 bf_get(lpfc_mbx_read_top_fa
, la
),
3384 phba
->wait_4_mlo_maint_flg
);
3386 lpfc_mbx_process_link_up(phba
, la
);
3387 } else if (attn_type
== LPFC_ATT_LINK_DOWN
||
3388 attn_type
== LPFC_ATT_UNEXP_WWPN
) {
3389 phba
->fc_stat
.LinkDown
++;
3390 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
3391 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3392 "1308 Link Down Event in loop back mode "
3394 "Data: x%x x%x x%x\n",
3395 la
->eventTag
, phba
->fc_eventTag
,
3396 phba
->pport
->port_state
, vport
->fc_flag
);
3397 else if (attn_type
== LPFC_ATT_UNEXP_WWPN
)
3398 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3399 "1313 Link Down UNEXP WWPN Event x%x received "
3400 "Data: x%x x%x x%x x%x x%x\n",
3401 la
->eventTag
, phba
->fc_eventTag
,
3402 phba
->pport
->port_state
, vport
->fc_flag
,
3403 bf_get(lpfc_mbx_read_top_mm
, la
),
3404 bf_get(lpfc_mbx_read_top_fa
, la
));
3406 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3407 "1305 Link Down Event x%x received "
3408 "Data: x%x x%x x%x x%x x%x\n",
3409 la
->eventTag
, phba
->fc_eventTag
,
3410 phba
->pport
->port_state
, vport
->fc_flag
,
3411 bf_get(lpfc_mbx_read_top_mm
, la
),
3412 bf_get(lpfc_mbx_read_top_fa
, la
));
3413 lpfc_mbx_issue_link_down(phba
);
3415 if (phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
&&
3416 attn_type
== LPFC_ATT_LINK_UP
) {
3417 if (phba
->link_state
!= LPFC_LINK_DOWN
) {
3418 phba
->fc_stat
.LinkDown
++;
3419 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3420 "1312 Link Down Event x%x received "
3421 "Data: x%x x%x x%x\n",
3422 la
->eventTag
, phba
->fc_eventTag
,
3423 phba
->pport
->port_state
, vport
->fc_flag
);
3424 lpfc_mbx_issue_link_down(phba
);
3426 lpfc_enable_la(phba
);
3428 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3429 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3430 "Data: x%x x%x x%x\n",
3431 la
->eventTag
, phba
->fc_eventTag
,
3432 phba
->pport
->port_state
, vport
->fc_flag
);
3434 * The cmnd that triggered this will be waiting for this
3437 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3438 if (phba
->wait_4_mlo_maint_flg
) {
3439 phba
->wait_4_mlo_maint_flg
= 0;
3440 wake_up_interruptible(&phba
->wait_4_mlo_m_q
);
3444 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
3445 bf_get(lpfc_mbx_read_top_fa
, la
)) {
3446 if (phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
)
3447 lpfc_issue_clear_la(phba
, vport
);
3448 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3450 bf_get(lpfc_mbx_read_top_fa
, la
));
3453 lpfc_mbx_cmpl_read_topology_free_mbuf
:
3454 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3456 mempool_free(pmb
, phba
->mbox_mem_pool
);
3461 * This routine handles processing a REG_LOGIN mailbox
3462 * command upon completion. It is setup in the LPFC_MBOXQ
3463 * as the completion routine when the command is
3464 * handed off to the SLI layer.
3467 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3469 struct lpfc_vport
*vport
= pmb
->vport
;
3470 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3471 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3472 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3474 pmb
->context1
= NULL
;
3475 pmb
->context2
= NULL
;
3477 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
3478 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3479 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3480 kref_read(&ndlp
->kref
),
3481 ndlp
->nlp_usg_map
, ndlp
);
3482 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
3483 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3485 if (ndlp
->nlp_flag
& NLP_IGNR_REG_CMPL
||
3486 ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) {
3487 /* We rcvd a rscn after issuing this
3488 * mbox reg login, we may have cycled
3489 * back through the state and be
3490 * back at reg login state so this
3491 * mbox needs to be ignored becase
3492 * there is another reg login in
3495 spin_lock_irq(shost
->host_lock
);
3496 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
3497 spin_unlock_irq(shost
->host_lock
);
3500 * We cannot leave the RPI registered because
3501 * if we go thru discovery again for this ndlp
3502 * a subsequent REG_RPI will fail.
3504 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3505 lpfc_unreg_rpi(vport
, ndlp
);
3508 /* Call state machine */
3509 lpfc_disc_state_machine(vport
, ndlp
, pmb
, NLP_EVT_CMPL_REG_LOGIN
);
3511 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3513 mempool_free(pmb
, phba
->mbox_mem_pool
);
3514 /* decrement the node reference count held for this callback
3523 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3525 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3526 struct lpfc_vport
*vport
= pmb
->vport
;
3527 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3529 switch (mb
->mbxStatus
) {
3532 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3533 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3536 /* If VPI is busy, reset the HBA */
3538 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
3539 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3540 vport
->vpi
, mb
->mbxStatus
);
3541 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
3542 lpfc_workq_post_event(phba
, NULL
, NULL
,
3543 LPFC_EVT_RESET_HBA
);
3545 spin_lock_irq(shost
->host_lock
);
3546 vport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
3547 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
3548 spin_unlock_irq(shost
->host_lock
);
3549 vport
->unreg_vpi_cmpl
= VPORT_OK
;
3550 mempool_free(pmb
, phba
->mbox_mem_pool
);
3551 lpfc_cleanup_vports_rrqs(vport
, NULL
);
3553 * This shost reference might have been taken at the beginning of
3554 * lpfc_vport_delete()
3556 if ((vport
->load_flag
& FC_UNLOADING
) && (vport
!= phba
->pport
))
3557 scsi_host_put(shost
);
3561 lpfc_mbx_unreg_vpi(struct lpfc_vport
*vport
)
3563 struct lpfc_hba
*phba
= vport
->phba
;
3567 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3571 lpfc_unreg_vpi(phba
, vport
->vpi
, mbox
);
3572 mbox
->vport
= vport
;
3573 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_unreg_vpi
;
3574 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
3575 if (rc
== MBX_NOT_FINISHED
) {
3576 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
3577 "1800 Could not issue unreg_vpi\n");
3578 mempool_free(mbox
, phba
->mbox_mem_pool
);
3579 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
3586 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3588 struct lpfc_vport
*vport
= pmb
->vport
;
3589 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3590 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3592 switch (mb
->mbxStatus
) {
3596 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3597 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3599 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3600 spin_lock_irq(shost
->host_lock
);
3601 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
3602 spin_unlock_irq(shost
->host_lock
);
3603 vport
->fc_myDID
= 0;
3605 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3606 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) {
3607 if (phba
->nvmet_support
)
3608 lpfc_nvmet_update_targetport(phba
);
3610 lpfc_nvme_update_localport(vport
);
3615 spin_lock_irq(shost
->host_lock
);
3616 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
3617 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
3618 spin_unlock_irq(shost
->host_lock
);
3619 vport
->num_disc_nodes
= 0;
3620 /* go thru NPR list and issue ELS PLOGIs */
3621 if (vport
->fc_npr_cnt
)
3622 lpfc_els_disc_plogi(vport
);
3624 if (!vport
->num_disc_nodes
) {
3625 spin_lock_irq(shost
->host_lock
);
3626 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
3627 spin_unlock_irq(shost
->host_lock
);
3628 lpfc_can_disctmo(vport
);
3630 vport
->port_state
= LPFC_VPORT_READY
;
3633 mempool_free(pmb
, phba
->mbox_mem_pool
);
3638 * lpfc_create_static_vport - Read HBA config region to create static vports.
3639 * @phba: pointer to lpfc hba data structure.
3641 * This routine issue a DUMP mailbox command for config region 22 to get
3642 * the list of static vports to be created. The function create vports
3643 * based on the information returned from the HBA.
3646 lpfc_create_static_vport(struct lpfc_hba
*phba
)
3648 LPFC_MBOXQ_t
*pmb
= NULL
;
3650 struct static_vport_info
*vport_info
;
3651 int mbx_wait_rc
= 0, i
;
3652 struct fc_vport_identifiers vport_id
;
3653 struct fc_vport
*new_fc_vport
;
3654 struct Scsi_Host
*shost
;
3655 struct lpfc_vport
*vport
;
3656 uint16_t offset
= 0;
3657 uint8_t *vport_buff
;
3658 struct lpfc_dmabuf
*mp
;
3659 uint32_t byte_count
= 0;
3661 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3663 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3664 "0542 lpfc_create_static_vport failed to"
3665 " allocate mailbox memory\n");
3668 memset(pmb
, 0, sizeof(LPFC_MBOXQ_t
));
3671 vport_info
= kzalloc(sizeof(struct static_vport_info
), GFP_KERNEL
);
3673 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3674 "0543 lpfc_create_static_vport failed to"
3675 " allocate vport_info\n");
3676 mempool_free(pmb
, phba
->mbox_mem_pool
);
3680 vport_buff
= (uint8_t *) vport_info
;
3682 /* free dma buffer from previous round */
3683 if (pmb
->context1
) {
3684 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3685 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3688 if (lpfc_dump_static_vport(phba
, pmb
, offset
))
3691 pmb
->vport
= phba
->pport
;
3692 mbx_wait_rc
= lpfc_sli_issue_mbox_wait(phba
, pmb
,
3695 if ((mbx_wait_rc
!= MBX_SUCCESS
) || mb
->mbxStatus
) {
3696 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3697 "0544 lpfc_create_static_vport failed to"
3698 " issue dump mailbox command ret 0x%x "
3700 mbx_wait_rc
, mb
->mbxStatus
);
3704 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3705 byte_count
= pmb
->u
.mqe
.un
.mb_words
[5];
3706 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3707 if (byte_count
> sizeof(struct static_vport_info
) -
3709 byte_count
= sizeof(struct static_vport_info
)
3711 memcpy(vport_buff
+ offset
, mp
->virt
, byte_count
);
3712 offset
+= byte_count
;
3714 if (mb
->un
.varDmp
.word_cnt
>
3715 sizeof(struct static_vport_info
) - offset
)
3716 mb
->un
.varDmp
.word_cnt
=
3717 sizeof(struct static_vport_info
)
3719 byte_count
= mb
->un
.varDmp
.word_cnt
;
3720 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
3721 vport_buff
+ offset
,
3724 offset
+= byte_count
;
3727 } while (byte_count
&&
3728 offset
< sizeof(struct static_vport_info
));
3731 if ((le32_to_cpu(vport_info
->signature
) != VPORT_INFO_SIG
) ||
3732 ((le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
)
3733 != VPORT_INFO_REV
)) {
3734 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3735 "0545 lpfc_create_static_vport bad"
3736 " information header 0x%x 0x%x\n",
3737 le32_to_cpu(vport_info
->signature
),
3738 le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
);
3743 shost
= lpfc_shost_from_vport(phba
->pport
);
3745 for (i
= 0; i
< MAX_STATIC_VPORT_COUNT
; i
++) {
3746 memset(&vport_id
, 0, sizeof(vport_id
));
3747 vport_id
.port_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwpn
);
3748 vport_id
.node_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwnn
);
3749 if (!vport_id
.port_name
|| !vport_id
.node_name
)
3752 vport_id
.roles
= FC_PORT_ROLE_FCP_INITIATOR
;
3753 vport_id
.vport_type
= FC_PORTTYPE_NPIV
;
3754 vport_id
.disable
= false;
3755 new_fc_vport
= fc_vport_create(shost
, 0, &vport_id
);
3757 if (!new_fc_vport
) {
3758 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3759 "0546 lpfc_create_static_vport failed to"
3764 vport
= *(struct lpfc_vport
**)new_fc_vport
->dd_data
;
3765 vport
->vport_flag
|= STATIC_VPORT
;
3770 if (mbx_wait_rc
!= MBX_TIMEOUT
) {
3771 if (pmb
->context1
) {
3772 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3773 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3776 mempool_free(pmb
, phba
->mbox_mem_pool
);
3783 * This routine handles processing a Fabric REG_LOGIN mailbox
3784 * command upon completion. It is setup in the LPFC_MBOXQ
3785 * as the completion routine when the command is
3786 * handed off to the SLI layer.
3789 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3791 struct lpfc_vport
*vport
= pmb
->vport
;
3792 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3793 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3794 struct lpfc_nodelist
*ndlp
;
3795 struct Scsi_Host
*shost
;
3797 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3798 pmb
->context1
= NULL
;
3799 pmb
->context2
= NULL
;
3801 if (mb
->mbxStatus
) {
3802 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3803 "0258 Register Fabric login error: 0x%x\n",
3805 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3807 mempool_free(pmb
, phba
->mbox_mem_pool
);
3809 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3810 /* FLOGI failed, use loop map to make discovery list */
3811 lpfc_disc_list_loopmap(vport
);
3813 /* Start discovery */
3814 lpfc_disc_start(vport
);
3815 /* Decrement the reference count to ndlp after the
3816 * reference to the ndlp are done.
3822 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3823 /* Decrement the reference count to ndlp after the reference
3824 * to the ndlp are done.
3830 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3831 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3832 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3833 ndlp
->nlp_type
|= NLP_FABRIC
;
3834 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3836 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
3837 /* when physical port receive logo donot start
3838 * vport discovery */
3839 if (!(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
3840 lpfc_start_fdiscs(phba
);
3842 shost
= lpfc_shost_from_vport(vport
);
3843 spin_lock_irq(shost
->host_lock
);
3844 vport
->fc_flag
&= ~FC_LOGO_RCVD_DID_CHNG
;
3845 spin_unlock_irq(shost
->host_lock
);
3847 lpfc_do_scr_ns_plogi(phba
, vport
);
3850 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3852 mempool_free(pmb
, phba
->mbox_mem_pool
);
3854 /* Drop the reference count from the mbox at the end after
3855 * all the current reference to the ndlp have been done.
3862 * This routine will issue a GID_FT for each FC4 Type supported
3863 * by the driver. ALL GID_FTs must complete before discovery is started.
3866 lpfc_issue_gidft(struct lpfc_vport
*vport
)
3868 struct lpfc_hba
*phba
= vport
->phba
;
3870 /* Good status, issue CT Request to NameServer */
3871 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3872 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_FCP
)) {
3873 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, SLI_CTPT_FCP
)) {
3874 /* Cannot issue NameServer FCP Query, so finish up
3877 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
3878 "0604 %s FC TYPE %x %s\n",
3879 "Failed to issue GID_FT to ",
3881 "Finishing discovery.");
3887 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3888 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) {
3889 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, SLI_CTPT_NVME
)) {
3890 /* Cannot issue NameServer NVME Query, so finish up
3893 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
3894 "0605 %s FC_TYPE %x %s %d\n",
3895 "Failed to issue GID_FT to ",
3897 "Finishing discovery: gidftinp ",
3899 if (vport
->gidft_inp
== 0)
3904 return vport
->gidft_inp
;
3908 * This routine handles processing a NameServer REG_LOGIN mailbox
3909 * command upon completion. It is setup in the LPFC_MBOXQ
3910 * as the completion routine when the command is
3911 * handed off to the SLI layer.
3914 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3916 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3917 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3918 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3919 struct lpfc_vport
*vport
= pmb
->vport
;
3921 pmb
->context1
= NULL
;
3922 pmb
->context2
= NULL
;
3923 vport
->gidft_inp
= 0;
3925 if (mb
->mbxStatus
) {
3926 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3927 "0260 Register NameServer error: 0x%x\n",
3931 /* decrement the node reference count held for this
3932 * callback function.
3935 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3937 mempool_free(pmb
, phba
->mbox_mem_pool
);
3939 /* If no other thread is using the ndlp, free it */
3940 lpfc_nlp_not_used(ndlp
);
3942 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3944 * RegLogin failed, use loop map to make discovery
3947 lpfc_disc_list_loopmap(vport
);
3949 /* Start discovery */
3950 lpfc_disc_start(vport
);
3953 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3957 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3958 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3959 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3960 ndlp
->nlp_type
|= NLP_FABRIC
;
3961 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3962 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
3963 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
3964 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3965 kref_read(&ndlp
->kref
),
3966 ndlp
->nlp_usg_map
, ndlp
);
3968 if (vport
->port_state
< LPFC_VPORT_READY
) {
3969 /* Link up discovery requires Fabric registration. */
3970 lpfc_ns_cmd(vport
, SLI_CTNS_RNN_ID
, 0, 0);
3971 lpfc_ns_cmd(vport
, SLI_CTNS_RSNN_NN
, 0, 0);
3972 lpfc_ns_cmd(vport
, SLI_CTNS_RSPN_ID
, 0, 0);
3973 lpfc_ns_cmd(vport
, SLI_CTNS_RFT_ID
, 0, 0);
3975 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3976 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_FCP
))
3977 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0, FC_TYPE_FCP
);
3979 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3980 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
))
3981 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0,
3984 /* Issue SCR just before NameServer GID_FT Query */
3985 lpfc_issue_els_scr(vport
, SCR_DID
, 0);
3988 vport
->fc_ns_retry
= 0;
3989 if (lpfc_issue_gidft(vport
) == 0)
3993 * At this point in time we may need to wait for multiple
3994 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
3996 * decrement the node reference count held for this
3997 * callback function.
4000 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4002 mempool_free(pmb
, phba
->mbox_mem_pool
);
4008 lpfc_register_remote_port(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4010 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4011 struct fc_rport
*rport
;
4012 struct lpfc_rport_data
*rdata
;
4013 struct fc_rport_identifiers rport_ids
;
4014 struct lpfc_hba
*phba
= vport
->phba
;
4016 if (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)
4019 /* Remote port has reappeared. Re-register w/ FC transport */
4020 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
4021 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
4022 rport_ids
.port_id
= ndlp
->nlp_DID
;
4023 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
4026 * We leave our node pointer in rport->dd_data when we unregister a
4027 * FCP target port. But fc_remote_port_add zeros the space to which
4028 * rport->dd_data points. So, if we're reusing a previously
4029 * registered port, drop the reference that we took the last time we
4030 * registered the port.
4032 rport
= ndlp
->rport
;
4034 rdata
= rport
->dd_data
;
4035 /* break the link before dropping the ref */
4038 if (rdata
->pnode
== ndlp
)
4040 rdata
->pnode
= NULL
;
4042 /* drop reference for earlier registeration */
4043 put_device(&rport
->dev
);
4046 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
4047 "rport add: did:x%x flg:x%x type x%x",
4048 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
4050 /* Don't add the remote port if unloading. */
4051 if (vport
->load_flag
& FC_UNLOADING
)
4054 ndlp
->rport
= rport
= fc_remote_port_add(shost
, 0, &rport_ids
);
4055 if (!rport
|| !get_device(&rport
->dev
)) {
4056 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
4057 "Warning: fc_remote_port_add failed\n");
4061 /* initialize static port data */
4062 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
4063 rport
->supported_classes
= ndlp
->nlp_class_sup
;
4064 rdata
= rport
->dd_data
;
4065 rdata
->pnode
= lpfc_nlp_get(ndlp
);
4067 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
4068 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
4069 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
4070 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
4072 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
4073 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
4075 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
4076 "3183 rport register x%06x, rport %p role x%x\n",
4077 ndlp
->nlp_DID
, rport
, rport_ids
.roles
);
4079 if ((rport
->scsi_target_id
!= -1) &&
4080 (rport
->scsi_target_id
< LPFC_MAX_TARGET
)) {
4081 ndlp
->nlp_sid
= rport
->scsi_target_id
;
4087 lpfc_unregister_remote_port(struct lpfc_nodelist
*ndlp
)
4089 struct fc_rport
*rport
= ndlp
->rport
;
4090 struct lpfc_vport
*vport
= ndlp
->vport
;
4091 struct lpfc_hba
*phba
= vport
->phba
;
4093 if (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)
4096 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
4097 "rport delete: did:x%x flg:x%x type x%x",
4098 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
4100 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4101 "3184 rport unregister x%06x, rport %p\n",
4102 ndlp
->nlp_DID
, rport
);
4104 fc_remote_port_delete(rport
);
4110 lpfc_nlp_counters(struct lpfc_vport
*vport
, int state
, int count
)
4112 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4114 spin_lock_irq(shost
->host_lock
);
4116 case NLP_STE_UNUSED_NODE
:
4117 vport
->fc_unused_cnt
+= count
;
4119 case NLP_STE_PLOGI_ISSUE
:
4120 vport
->fc_plogi_cnt
+= count
;
4122 case NLP_STE_ADISC_ISSUE
:
4123 vport
->fc_adisc_cnt
+= count
;
4125 case NLP_STE_REG_LOGIN_ISSUE
:
4126 vport
->fc_reglogin_cnt
+= count
;
4128 case NLP_STE_PRLI_ISSUE
:
4129 vport
->fc_prli_cnt
+= count
;
4131 case NLP_STE_UNMAPPED_NODE
:
4132 vport
->fc_unmap_cnt
+= count
;
4134 case NLP_STE_MAPPED_NODE
:
4135 vport
->fc_map_cnt
+= count
;
4137 case NLP_STE_NPR_NODE
:
4138 if (vport
->fc_npr_cnt
== 0 && count
== -1)
4139 vport
->fc_npr_cnt
= 0;
4141 vport
->fc_npr_cnt
+= count
;
4144 spin_unlock_irq(shost
->host_lock
);
4148 lpfc_nlp_state_cleanup(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4149 int old_state
, int new_state
)
4151 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4153 if (new_state
== NLP_STE_UNMAPPED_NODE
) {
4154 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
4155 ndlp
->nlp_type
|= NLP_FC_NODE
;
4157 if (new_state
== NLP_STE_MAPPED_NODE
)
4158 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
4159 if (new_state
== NLP_STE_NPR_NODE
)
4160 ndlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
4162 /* FCP and NVME Transport interface */
4163 if ((old_state
== NLP_STE_MAPPED_NODE
||
4164 old_state
== NLP_STE_UNMAPPED_NODE
)) {
4166 vport
->phba
->nport_event_cnt
++;
4167 lpfc_unregister_remote_port(ndlp
);
4170 /* Notify the NVME transport of this rport's loss on the
4171 * Initiator. For NVME Target, should upcall transport
4172 * in the else clause when API available.
4174 if (ndlp
->nlp_fc4_type
& NLP_FC4_NVME
) {
4175 vport
->phba
->nport_event_cnt
++;
4176 if (vport
->phba
->nvmet_support
== 0)
4177 lpfc_nvme_unregister_port(vport
, ndlp
);
4181 /* FCP and NVME Transport interfaces */
4183 if (new_state
== NLP_STE_MAPPED_NODE
||
4184 new_state
== NLP_STE_UNMAPPED_NODE
) {
4185 if ((ndlp
->nlp_fc4_type
& NLP_FC4_FCP
) ||
4186 (ndlp
->nlp_DID
== Fabric_DID
)) {
4187 vport
->phba
->nport_event_cnt
++;
4189 * Tell the fc transport about the port, if we haven't
4190 * already. If we have, and it's a scsi entity, be
4192 lpfc_register_remote_port(vport
, ndlp
);
4194 /* Notify the NVME transport of this new rport. */
4195 if (ndlp
->nlp_fc4_type
& NLP_FC4_NVME
) {
4196 if (vport
->phba
->nvmet_support
== 0) {
4197 /* Register this rport with the transport.
4198 * Initiators take the NDLP ref count in
4201 vport
->phba
->nport_event_cnt
++;
4202 lpfc_nvme_register_port(vport
, ndlp
);
4204 /* Just take an NDLP ref count since the
4205 * target does not register rports.
4212 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
4213 (vport
->stat_data_enabled
)) {
4215 * A new target is discovered, if there is no buffer for
4216 * statistical data collection allocate buffer.
4218 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
4219 sizeof(struct lpfc_scsicmd_bkt
),
4222 if (!ndlp
->lat_data
)
4223 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
4224 "0286 lpfc_nlp_state_cleanup failed to "
4225 "allocate statistical data buffer DID "
4226 "0x%x\n", ndlp
->nlp_DID
);
4229 * If the node just added to Mapped list was an FCP target,
4230 * but the remote port registration failed or assigned a target
4231 * id outside the presentable range - move the node to the
4234 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
4235 (ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4237 ndlp
->rport
->scsi_target_id
== -1 ||
4238 ndlp
->rport
->scsi_target_id
>= LPFC_MAX_TARGET
)) {
4239 spin_lock_irq(shost
->host_lock
);
4240 ndlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
4241 spin_unlock_irq(shost
->host_lock
);
4242 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
4247 lpfc_nlp_state_name(char *buffer
, size_t size
, int state
)
4249 static char *states
[] = {
4250 [NLP_STE_UNUSED_NODE
] = "UNUSED",
4251 [NLP_STE_PLOGI_ISSUE
] = "PLOGI",
4252 [NLP_STE_ADISC_ISSUE
] = "ADISC",
4253 [NLP_STE_REG_LOGIN_ISSUE
] = "REGLOGIN",
4254 [NLP_STE_PRLI_ISSUE
] = "PRLI",
4255 [NLP_STE_LOGO_ISSUE
] = "LOGO",
4256 [NLP_STE_UNMAPPED_NODE
] = "UNMAPPED",
4257 [NLP_STE_MAPPED_NODE
] = "MAPPED",
4258 [NLP_STE_NPR_NODE
] = "NPR",
4261 if (state
< NLP_STE_MAX_STATE
&& states
[state
])
4262 strlcpy(buffer
, states
[state
], size
);
4264 snprintf(buffer
, size
, "unknown (%d)", state
);
4269 lpfc_nlp_set_state(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4272 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4273 int old_state
= ndlp
->nlp_state
;
4274 char name1
[16], name2
[16];
4276 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4277 "0904 NPort state transition x%06x, %s -> %s\n",
4279 lpfc_nlp_state_name(name1
, sizeof(name1
), old_state
),
4280 lpfc_nlp_state_name(name2
, sizeof(name2
), state
));
4282 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4283 "node statechg did:x%x old:%d ste:%d",
4284 ndlp
->nlp_DID
, old_state
, state
);
4286 if (old_state
== NLP_STE_NPR_NODE
&&
4287 state
!= NLP_STE_NPR_NODE
)
4288 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4289 if (old_state
== NLP_STE_UNMAPPED_NODE
) {
4290 ndlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
4291 ndlp
->nlp_type
&= ~NLP_FC_NODE
;
4294 if (list_empty(&ndlp
->nlp_listp
)) {
4295 spin_lock_irq(shost
->host_lock
);
4296 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4297 spin_unlock_irq(shost
->host_lock
);
4298 } else if (old_state
)
4299 lpfc_nlp_counters(vport
, old_state
, -1);
4301 ndlp
->nlp_state
= state
;
4302 lpfc_nlp_counters(vport
, state
, 1);
4303 lpfc_nlp_state_cleanup(vport
, ndlp
, old_state
, state
);
4307 lpfc_enqueue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4309 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4311 if (list_empty(&ndlp
->nlp_listp
)) {
4312 spin_lock_irq(shost
->host_lock
);
4313 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4314 spin_unlock_irq(shost
->host_lock
);
4319 lpfc_dequeue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4321 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4323 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4324 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4325 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4326 spin_lock_irq(shost
->host_lock
);
4327 list_del_init(&ndlp
->nlp_listp
);
4328 spin_unlock_irq(shost
->host_lock
);
4329 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4330 NLP_STE_UNUSED_NODE
);
4334 lpfc_disable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4336 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4337 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4338 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4339 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4340 NLP_STE_UNUSED_NODE
);
4343 * lpfc_initialize_node - Initialize all fields of node object
4344 * @vport: Pointer to Virtual Port object.
4345 * @ndlp: Pointer to FC node object.
4346 * @did: FC_ID of the node.
4348 * This function is always called when node object need to be initialized.
4349 * It initializes all the fields of the node object. Although the reference
4350 * to phba from @ndlp can be obtained indirectly through it's reference to
4351 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4352 * to the life-span of the @ndlp might go beyond the existence of @vport as
4353 * the final release of ndlp is determined by its reference count. And, the
4354 * operation on @ndlp needs the reference to phba.
4357 lpfc_initialize_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4360 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
4361 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
4362 setup_timer(&ndlp
->nlp_delayfunc
, lpfc_els_retry_delay
,
4363 (unsigned long)ndlp
);
4364 ndlp
->nlp_DID
= did
;
4365 ndlp
->vport
= vport
;
4366 ndlp
->phba
= vport
->phba
;
4367 ndlp
->nlp_sid
= NLP_NO_SID
;
4368 ndlp
->nlp_fc4_type
= NLP_FC4_NONE
;
4369 kref_init(&ndlp
->kref
);
4370 NLP_INT_NODE_ACT(ndlp
);
4371 atomic_set(&ndlp
->cmd_pending
, 0);
4372 ndlp
->cmd_qdepth
= vport
->cfg_tgt_queue_depth
;
4375 struct lpfc_nodelist
*
4376 lpfc_enable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4379 struct lpfc_hba
*phba
= vport
->phba
;
4381 unsigned long flags
;
4382 unsigned long *active_rrqs_xri_bitmap
= NULL
;
4383 int rpi
= LPFC_RPI_ALLOC_ERROR
;
4388 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
4389 rpi
= lpfc_sli4_alloc_rpi(vport
->phba
);
4390 if (rpi
== LPFC_RPI_ALLOC_ERROR
)
4394 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
4395 /* The ndlp should not be in memory free mode */
4396 if (NLP_CHK_FREE_REQ(ndlp
)) {
4397 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4398 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4399 "0277 lpfc_enable_node: ndlp:x%p "
4400 "usgmap:x%x refcnt:%d\n",
4401 (void *)ndlp
, ndlp
->nlp_usg_map
,
4402 kref_read(&ndlp
->kref
));
4405 /* The ndlp should not already be in active mode */
4406 if (NLP_CHK_NODE_ACT(ndlp
)) {
4407 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4408 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4409 "0278 lpfc_enable_node: ndlp:x%p "
4410 "usgmap:x%x refcnt:%d\n",
4411 (void *)ndlp
, ndlp
->nlp_usg_map
,
4412 kref_read(&ndlp
->kref
));
4416 /* Keep the original DID */
4417 did
= ndlp
->nlp_DID
;
4418 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4419 active_rrqs_xri_bitmap
= ndlp
->active_rrqs_xri_bitmap
;
4421 /* re-initialize ndlp except of ndlp linked list pointer */
4422 memset((((char *)ndlp
) + sizeof (struct list_head
)), 0,
4423 sizeof (struct lpfc_nodelist
) - sizeof (struct list_head
));
4424 lpfc_initialize_node(vport
, ndlp
, did
);
4426 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4427 ndlp
->active_rrqs_xri_bitmap
= active_rrqs_xri_bitmap
;
4429 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4430 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
4431 ndlp
->nlp_rpi
= rpi
;
4432 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4433 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4434 "map:%x %p\n", ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
4436 kref_read(&ndlp
->kref
),
4437 ndlp
->nlp_usg_map
, ndlp
);
4441 if (state
!= NLP_STE_UNUSED_NODE
)
4442 lpfc_nlp_set_state(vport
, ndlp
, state
);
4444 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4445 "node enable: did:x%x",
4446 ndlp
->nlp_DID
, 0, 0);
4450 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4451 lpfc_sli4_free_rpi(vport
->phba
, rpi
);
4456 lpfc_drop_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4459 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4460 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4461 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4462 * until ALL other outstanding threads have completed. We check
4463 * that the ndlp not already in the UNUSED state before we proceed.
4465 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
4467 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
4468 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
4469 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4470 lpfc_unreg_rpi(vport
, ndlp
);
4478 * Start / ReStart rescue timer for Discovery / RSCN handling
4481 lpfc_set_disctmo(struct lpfc_vport
*vport
)
4483 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4484 struct lpfc_hba
*phba
= vport
->phba
;
4487 if (vport
->port_state
== LPFC_LOCAL_CFG_LINK
) {
4488 /* For FAN, timeout should be greater than edtov */
4489 tmo
= (((phba
->fc_edtov
+ 999) / 1000) + 1);
4491 /* Normal discovery timeout should be > than ELS/CT timeout
4492 * FC spec states we need 3 * ratov for CT requests
4494 tmo
= ((phba
->fc_ratov
* 3) + 3);
4498 if (!timer_pending(&vport
->fc_disctmo
)) {
4499 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4500 "set disc timer: tmo:x%x state:x%x flg:x%x",
4501 tmo
, vport
->port_state
, vport
->fc_flag
);
4504 mod_timer(&vport
->fc_disctmo
, jiffies
+ msecs_to_jiffies(1000 * tmo
));
4505 spin_lock_irq(shost
->host_lock
);
4506 vport
->fc_flag
|= FC_DISC_TMO
;
4507 spin_unlock_irq(shost
->host_lock
);
4509 /* Start Discovery Timer state <hba_state> */
4510 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4511 "0247 Start Discovery Timer state x%x "
4512 "Data: x%x x%lx x%x x%x\n",
4513 vport
->port_state
, tmo
,
4514 (unsigned long)&vport
->fc_disctmo
, vport
->fc_plogi_cnt
,
4515 vport
->fc_adisc_cnt
);
4521 * Cancel rescue timer for Discovery / RSCN handling
4524 lpfc_can_disctmo(struct lpfc_vport
*vport
)
4526 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4527 unsigned long iflags
;
4529 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4530 "can disc timer: state:x%x rtry:x%x flg:x%x",
4531 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
4533 /* Turn off discovery timer if its running */
4534 if (vport
->fc_flag
& FC_DISC_TMO
) {
4535 spin_lock_irqsave(shost
->host_lock
, iflags
);
4536 vport
->fc_flag
&= ~FC_DISC_TMO
;
4537 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
4538 del_timer_sync(&vport
->fc_disctmo
);
4539 spin_lock_irqsave(&vport
->work_port_lock
, iflags
);
4540 vport
->work_port_events
&= ~WORKER_DISC_TMO
;
4541 spin_unlock_irqrestore(&vport
->work_port_lock
, iflags
);
4544 /* Cancel Discovery Timer state <hba_state> */
4545 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4546 "0248 Cancel Discovery Timer state x%x "
4547 "Data: x%x x%x x%x\n",
4548 vport
->port_state
, vport
->fc_flag
,
4549 vport
->fc_plogi_cnt
, vport
->fc_adisc_cnt
);
4554 * Check specified ring for outstanding IOCB on the SLI queue
4555 * Return true if iocb matches the specified nport
4558 lpfc_check_sli_ndlp(struct lpfc_hba
*phba
,
4559 struct lpfc_sli_ring
*pring
,
4560 struct lpfc_iocbq
*iocb
,
4561 struct lpfc_nodelist
*ndlp
)
4563 IOCB_t
*icmd
= &iocb
->iocb
;
4564 struct lpfc_vport
*vport
= ndlp
->vport
;
4566 if (iocb
->vport
!= vport
)
4569 if (pring
->ringno
== LPFC_ELS_RING
) {
4570 switch (icmd
->ulpCommand
) {
4571 case CMD_GEN_REQUEST64_CR
:
4572 if (iocb
->context_un
.ndlp
== ndlp
)
4574 case CMD_ELS_REQUEST64_CR
:
4575 if (icmd
->un
.elsreq64
.remoteID
== ndlp
->nlp_DID
)
4577 case CMD_XMIT_ELS_RSP64_CX
:
4578 if (iocb
->context1
== (uint8_t *) ndlp
)
4581 } else if (pring
->ringno
== LPFC_FCP_RING
) {
4582 /* Skip match check if waiting to relogin to FCP target */
4583 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4584 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
4587 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
4595 __lpfc_dequeue_nport_iocbs(struct lpfc_hba
*phba
,
4596 struct lpfc_nodelist
*ndlp
, struct lpfc_sli_ring
*pring
,
4597 struct list_head
*dequeue_list
)
4599 struct lpfc_iocbq
*iocb
, *next_iocb
;
4601 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
4602 /* Check to see if iocb matches the nport */
4603 if (lpfc_check_sli_ndlp(phba
, pring
, iocb
, ndlp
))
4604 /* match, dequeue */
4605 list_move_tail(&iocb
->list
, dequeue_list
);
4610 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba
*phba
,
4611 struct lpfc_nodelist
*ndlp
, struct list_head
*dequeue_list
)
4613 struct lpfc_sli
*psli
= &phba
->sli
;
4616 spin_lock_irq(&phba
->hbalock
);
4617 for (i
= 0; i
< psli
->num_rings
; i
++)
4618 __lpfc_dequeue_nport_iocbs(phba
, ndlp
, &psli
->sli3_ring
[i
],
4620 spin_unlock_irq(&phba
->hbalock
);
4624 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba
*phba
,
4625 struct lpfc_nodelist
*ndlp
, struct list_head
*dequeue_list
)
4627 struct lpfc_sli_ring
*pring
;
4628 struct lpfc_queue
*qp
= NULL
;
4630 spin_lock_irq(&phba
->hbalock
);
4631 list_for_each_entry(qp
, &phba
->sli4_hba
.lpfc_wq_list
, wq_list
) {
4635 spin_lock(&pring
->ring_lock
);
4636 __lpfc_dequeue_nport_iocbs(phba
, ndlp
, pring
, dequeue_list
);
4637 spin_unlock(&pring
->ring_lock
);
4639 spin_unlock_irq(&phba
->hbalock
);
4643 * Free resources / clean up outstanding I/Os
4644 * associated with nlp_rpi in the LPFC_NODELIST entry.
4647 lpfc_no_rpi(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
4649 LIST_HEAD(completions
);
4651 lpfc_fabric_abort_nport(ndlp
);
4654 * Everything that matches on txcmplq will be returned
4655 * by firmware with a no rpi error.
4657 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4658 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
4659 lpfc_sli3_dequeue_nport_iocbs(phba
, ndlp
, &completions
);
4661 lpfc_sli4_dequeue_nport_iocbs(phba
, ndlp
, &completions
);
4664 /* Cancel all the IOCBs from the completions list */
4665 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
4672 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4673 * @phba: Pointer to HBA context object.
4674 * @pmb: Pointer to mailbox object.
4676 * This function will issue an ELS LOGO command after completing
4680 lpfc_nlp_logo_unreg(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
4682 struct lpfc_vport
*vport
= pmb
->vport
;
4683 struct lpfc_nodelist
*ndlp
;
4685 ndlp
= (struct lpfc_nodelist
*)(pmb
->context1
);
4688 lpfc_issue_els_logo(vport
, ndlp
, 0);
4689 mempool_free(pmb
, phba
->mbox_mem_pool
);
4693 * Free rpi associated with LPFC_NODELIST entry.
4694 * This routine is called from lpfc_freenode(), when we are removing
4695 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4696 * LOGO that completes successfully, and we are waiting to PLOGI back
4697 * to the remote NPort. In addition, it is called after we receive
4698 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4699 * we are waiting to PLOGI back to the remote NPort.
4702 lpfc_unreg_rpi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4704 struct lpfc_hba
*phba
= vport
->phba
;
4706 int rc
, acc_plogi
= 1;
4709 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
||
4710 ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) {
4711 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
4712 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
4713 "3366 RPI x%x needs to be "
4714 "unregistered nlp_flag x%x "
4716 ndlp
->nlp_rpi
, ndlp
->nlp_flag
,
4718 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4720 /* SLI4 ports require the physical rpi value. */
4721 rpi
= ndlp
->nlp_rpi
;
4722 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4723 rpi
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
4725 lpfc_unreg_login(phba
, vport
->vpi
, rpi
, mbox
);
4726 mbox
->vport
= vport
;
4727 if (ndlp
->nlp_flag
& NLP_ISSUE_LOGO
) {
4728 mbox
->context1
= ndlp
;
4729 mbox
->mbox_cmpl
= lpfc_nlp_logo_unreg
;
4731 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
4732 (!(vport
->load_flag
& FC_UNLOADING
)) &&
4733 (bf_get(lpfc_sli_intf_if_type
,
4734 &phba
->sli4_hba
.sli_intf
) ==
4735 LPFC_SLI_INTF_IF_TYPE_2
) &&
4736 (kref_read(&ndlp
->kref
) > 0)) {
4737 mbox
->context1
= lpfc_nlp_get(ndlp
);
4739 lpfc_sli4_unreg_rpi_cmpl_clr
;
4741 * accept PLOGIs after unreg_rpi_cmpl
4746 lpfc_sli_def_mbox_cmpl
;
4749 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4750 if (rc
== MBX_NOT_FINISHED
) {
4751 mempool_free(mbox
, phba
->mbox_mem_pool
);
4755 lpfc_no_rpi(phba
, ndlp
);
4757 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
4759 ndlp
->nlp_flag
&= ~NLP_RPI_REGISTERED
;
4760 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4762 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4765 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4770 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4771 * @phba: pointer to lpfc hba data structure.
4773 * This routine is invoked to unregister all the currently registered RPIs
4777 lpfc_unreg_hba_rpis(struct lpfc_hba
*phba
)
4779 struct lpfc_vport
**vports
;
4780 struct lpfc_nodelist
*ndlp
;
4781 struct Scsi_Host
*shost
;
4784 vports
= lpfc_create_vport_work_array(phba
);
4786 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
4787 "2884 Vport array allocation failed \n");
4790 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
4791 shost
= lpfc_shost_from_vport(vports
[i
]);
4792 spin_lock_irq(shost
->host_lock
);
4793 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
4794 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4795 /* The mempool_alloc might sleep */
4796 spin_unlock_irq(shost
->host_lock
);
4797 lpfc_unreg_rpi(vports
[i
], ndlp
);
4798 spin_lock_irq(shost
->host_lock
);
4801 spin_unlock_irq(shost
->host_lock
);
4803 lpfc_destroy_vport_work_array(phba
, vports
);
4807 lpfc_unreg_all_rpis(struct lpfc_vport
*vport
)
4809 struct lpfc_hba
*phba
= vport
->phba
;
4813 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
4814 lpfc_sli4_unreg_all_rpis(vport
);
4818 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4820 lpfc_unreg_login(phba
, vport
->vpi
, LPFC_UNREG_ALL_RPIS_VPORT
,
4822 mbox
->vport
= vport
;
4823 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4824 mbox
->context1
= NULL
;
4825 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4826 if (rc
!= MBX_TIMEOUT
)
4827 mempool_free(mbox
, phba
->mbox_mem_pool
);
4829 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4830 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4831 "1836 Could not issue "
4832 "unreg_login(all_rpis) status %d\n", rc
);
4837 lpfc_unreg_default_rpis(struct lpfc_vport
*vport
)
4839 struct lpfc_hba
*phba
= vport
->phba
;
4843 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4845 lpfc_unreg_did(phba
, vport
->vpi
, LPFC_UNREG_ALL_DFLT_RPIS
,
4847 mbox
->vport
= vport
;
4848 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4849 mbox
->context1
= NULL
;
4850 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4851 if (rc
!= MBX_TIMEOUT
)
4852 mempool_free(mbox
, phba
->mbox_mem_pool
);
4854 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4855 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4856 "1815 Could not issue "
4857 "unreg_did (default rpis) status %d\n",
4863 * Free resources associated with LPFC_NODELIST entry
4864 * so it can be freed.
4867 lpfc_cleanup_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4869 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4870 struct lpfc_hba
*phba
= vport
->phba
;
4871 LPFC_MBOXQ_t
*mb
, *nextmb
;
4872 struct lpfc_dmabuf
*mp
;
4874 /* Cleanup node for NPort <nlp_DID> */
4875 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4876 "0900 Cleanup node for NPort x%x "
4877 "Data: x%x x%x x%x\n",
4878 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
4879 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4880 if (NLP_CHK_FREE_REQ(ndlp
)) {
4881 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4882 "0280 lpfc_cleanup_node: ndlp:x%p "
4883 "usgmap:x%x refcnt:%d\n",
4884 (void *)ndlp
, ndlp
->nlp_usg_map
,
4885 kref_read(&ndlp
->kref
));
4886 lpfc_dequeue_node(vport
, ndlp
);
4888 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4889 "0281 lpfc_cleanup_node: ndlp:x%p "
4890 "usgmap:x%x refcnt:%d\n",
4891 (void *)ndlp
, ndlp
->nlp_usg_map
,
4892 kref_read(&ndlp
->kref
));
4893 lpfc_disable_node(vport
, ndlp
);
4897 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4899 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4900 if ((mb
= phba
->sli
.mbox_active
)) {
4901 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4902 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4903 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4904 mb
->context2
= NULL
;
4905 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4909 spin_lock_irq(&phba
->hbalock
);
4910 /* Cleanup REG_LOGIN completions which are not yet processed */
4911 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
4912 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) ||
4913 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) ||
4914 (ndlp
!= (struct lpfc_nodelist
*) mb
->context2
))
4917 mb
->context2
= NULL
;
4918 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4921 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
4922 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4923 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4924 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4925 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
4927 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4930 list_del(&mb
->list
);
4931 mempool_free(mb
, phba
->mbox_mem_pool
);
4932 /* We shall not invoke the lpfc_nlp_put to decrement
4933 * the ndlp reference count as we are in the process
4934 * of lpfc_nlp_release.
4938 spin_unlock_irq(&phba
->hbalock
);
4940 lpfc_els_abort(phba
, ndlp
);
4942 spin_lock_irq(shost
->host_lock
);
4943 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
4944 spin_unlock_irq(shost
->host_lock
);
4946 ndlp
->nlp_last_elscmd
= 0;
4947 del_timer_sync(&ndlp
->nlp_delayfunc
);
4949 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
4950 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
4951 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4952 lpfc_unreg_rpi(vport
, ndlp
);
4958 * Check to see if we can free the nlp back to the freelist.
4959 * If we are in the middle of using the nlp in the discovery state
4960 * machine, defer the free till we reach the end of the state machine.
4963 lpfc_nlp_remove(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4965 struct lpfc_hba
*phba
= vport
->phba
;
4966 struct lpfc_rport_data
*rdata
;
4967 struct fc_rport
*rport
;
4971 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4972 if ((ndlp
->nlp_flag
& NLP_DEFER_RM
) &&
4973 !(ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) &&
4974 !(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
)) {
4975 /* For this case we need to cleanup the default rpi
4976 * allocated by the firmware.
4978 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4979 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
4980 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
4981 kref_read(&ndlp
->kref
),
4982 ndlp
->nlp_usg_map
, ndlp
);
4983 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))
4985 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, ndlp
->nlp_DID
,
4986 (uint8_t *) &vport
->fc_sparam
, mbox
, ndlp
->nlp_rpi
);
4988 mempool_free(mbox
, phba
->mbox_mem_pool
);
4991 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
4992 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
4993 mbox
->vport
= vport
;
4994 mbox
->context2
= ndlp
;
4995 rc
=lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4996 if (rc
== MBX_NOT_FINISHED
) {
4997 mempool_free(mbox
, phba
->mbox_mem_pool
);
5002 lpfc_cleanup_node(vport
, ndlp
);
5005 * ndlp->rport must be set to NULL before it reaches here
5006 * i.e. break rport/node link before doing lpfc_nlp_put for
5007 * registered rport and then drop the reference of rport.
5011 * extra lpfc_nlp_put dropped the reference of ndlp
5012 * for registered rport so need to cleanup rport
5014 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
5015 "0940 removed node x%p DID x%x "
5016 " rport not null %p\n",
5017 ndlp
, ndlp
->nlp_DID
, ndlp
->rport
);
5018 rport
= ndlp
->rport
;
5019 rdata
= rport
->dd_data
;
5020 rdata
->pnode
= NULL
;
5022 put_device(&rport
->dev
);
5027 lpfc_matchdid(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5030 D_ID mydid
, ndlpdid
, matchdid
;
5032 if (did
== Bcast_DID
)
5035 /* First check for Direct match */
5036 if (ndlp
->nlp_DID
== did
)
5039 /* Next check for area/domain identically equals 0 match */
5040 mydid
.un
.word
= vport
->fc_myDID
;
5041 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
5045 matchdid
.un
.word
= did
;
5046 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
5047 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
5048 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
5049 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
5050 /* This code is supposed to match the ID
5051 * for a private loop device that is
5052 * connect to fl_port. But we need to
5053 * check that the port did not just go
5054 * from pt2pt to fabric or we could end
5055 * up matching ndlp->nlp_DID 000001 to
5056 * fabric DID 0x20101
5058 if ((ndlpdid
.un
.b
.domain
== 0) &&
5059 (ndlpdid
.un
.b
.area
== 0)) {
5060 if (ndlpdid
.un
.b
.id
&&
5061 vport
->phba
->fc_topology
==
5068 matchdid
.un
.word
= ndlp
->nlp_DID
;
5069 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
5070 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
5071 if ((matchdid
.un
.b
.domain
== 0) &&
5072 (matchdid
.un
.b
.area
== 0)) {
5073 if (matchdid
.un
.b
.id
)
5081 /* Search for a nodelist entry */
5082 static struct lpfc_nodelist
*
5083 __lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
5085 struct lpfc_nodelist
*ndlp
;
5088 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5089 if (lpfc_matchdid(vport
, ndlp
, did
)) {
5090 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
5091 ((uint32_t) ndlp
->nlp_xri
<< 16) |
5092 ((uint32_t) ndlp
->nlp_type
<< 8) |
5093 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
5094 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5095 "0929 FIND node DID "
5096 "Data: x%p x%x x%x x%x %p\n",
5097 ndlp
, ndlp
->nlp_DID
,
5098 ndlp
->nlp_flag
, data1
,
5099 ndlp
->active_rrqs_xri_bitmap
);
5104 /* FIND node did <did> NOT FOUND */
5105 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5106 "0932 FIND node did x%x NOT FOUND.\n", did
);
5110 struct lpfc_nodelist
*
5111 lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
5113 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5114 struct lpfc_nodelist
*ndlp
;
5115 unsigned long iflags
;
5117 spin_lock_irqsave(shost
->host_lock
, iflags
);
5118 ndlp
= __lpfc_findnode_did(vport
, did
);
5119 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
5123 struct lpfc_nodelist
*
5124 lpfc_setup_disc_node(struct lpfc_vport
*vport
, uint32_t did
)
5126 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5127 struct lpfc_nodelist
*ndlp
;
5129 ndlp
= lpfc_findnode_did(vport
, did
);
5131 if (vport
->phba
->nvmet_support
)
5133 if ((vport
->fc_flag
& FC_RSCN_MODE
) != 0 &&
5134 lpfc_rscn_payload_check(vport
, did
) == 0)
5136 ndlp
= lpfc_nlp_init(vport
, did
);
5139 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
5140 spin_lock_irq(shost
->host_lock
);
5141 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5142 spin_unlock_irq(shost
->host_lock
);
5144 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
5145 if (vport
->phba
->nvmet_support
)
5147 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
5150 spin_lock_irq(shost
->host_lock
);
5151 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5152 spin_unlock_irq(shost
->host_lock
);
5156 /* The NVME Target does not want to actively manage an rport.
5157 * The goal is to allow the target to reset its state and clear
5158 * pending IO in preparation for the initiator to recover.
5160 if ((vport
->fc_flag
& FC_RSCN_MODE
) &&
5161 !(vport
->fc_flag
& FC_NDISC_ACTIVE
)) {
5162 if (lpfc_rscn_payload_check(vport
, did
)) {
5164 /* Since this node is marked for discovery,
5165 * delay timeout is not needed.
5167 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
5169 /* NVME Target mode waits until rport is known to be
5170 * impacted by the RSCN before it transitions. No
5171 * active management - just go to NPR provided the
5172 * node had a valid login.
5174 if (vport
->phba
->nvmet_support
)
5177 /* If we've already received a PLOGI from this NPort
5178 * we don't need to try to discover it again.
5180 if (ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
5183 spin_lock_irq(shost
->host_lock
);
5184 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5185 spin_unlock_irq(shost
->host_lock
);
5189 /* If the initiator received a PLOGI from this NPort or if the
5190 * initiator is already in the process of discovery on it,
5191 * there's no need to try to discover it again.
5193 if (ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
||
5194 ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
5195 (!vport
->phba
->nvmet_support
&&
5196 ndlp
->nlp_flag
& NLP_RCV_PLOGI
))
5199 if (vport
->phba
->nvmet_support
)
5202 /* Moving to NPR state clears unsolicited flags and
5203 * allows for rediscovery
5205 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
5207 spin_lock_irq(shost
->host_lock
);
5208 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5209 spin_unlock_irq(shost
->host_lock
);
5214 /* Build a list of nodes to discover based on the loopmap */
5216 lpfc_disc_list_loopmap(struct lpfc_vport
*vport
)
5218 struct lpfc_hba
*phba
= vport
->phba
;
5220 uint32_t alpa
, index
;
5222 if (!lpfc_is_link_up(phba
))
5225 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
5228 /* Check for loop map present or not */
5229 if (phba
->alpa_map
[0]) {
5230 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
5231 alpa
= phba
->alpa_map
[j
];
5232 if (((vport
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0))
5234 lpfc_setup_disc_node(vport
, alpa
);
5237 /* No alpamap, so try all alpa's */
5238 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
5239 /* If cfg_scan_down is set, start from highest
5240 * ALPA (0xef) to lowest (0x1).
5242 if (vport
->cfg_scan_down
)
5245 index
= FC_MAXLOOP
- j
- 1;
5246 alpa
= lpfcAlpaArray
[index
];
5247 if ((vport
->fc_myDID
& 0xff) == alpa
)
5249 lpfc_setup_disc_node(vport
, alpa
);
5257 lpfc_issue_clear_la(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
5260 struct lpfc_sli
*psli
= &phba
->sli
;
5261 struct lpfc_sli_ring
*extra_ring
= &psli
->sli3_ring
[LPFC_EXTRA_RING
];
5262 struct lpfc_sli_ring
*fcp_ring
= &psli
->sli3_ring
[LPFC_FCP_RING
];
5266 * if it's not a physical port or if we already send
5267 * clear_la then don't send it.
5269 if ((phba
->link_state
>= LPFC_CLEAR_LA
) ||
5270 (vport
->port_type
!= LPFC_PHYSICAL_PORT
) ||
5271 (phba
->sli_rev
== LPFC_SLI_REV4
))
5274 /* Link up discovery */
5275 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
)) != NULL
) {
5276 phba
->link_state
= LPFC_CLEAR_LA
;
5277 lpfc_clear_la(phba
, mbox
);
5278 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
5279 mbox
->vport
= vport
;
5280 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5281 if (rc
== MBX_NOT_FINISHED
) {
5282 mempool_free(mbox
, phba
->mbox_mem_pool
);
5283 lpfc_disc_flush_list(vport
);
5284 extra_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
5285 fcp_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
5286 phba
->link_state
= LPFC_HBA_ERROR
;
5291 /* Reg_vpi to tell firmware to resume normal operations */
5293 lpfc_issue_reg_vpi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
5295 LPFC_MBOXQ_t
*regvpimbox
;
5297 regvpimbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5299 lpfc_reg_vpi(vport
, regvpimbox
);
5300 regvpimbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vpi
;
5301 regvpimbox
->vport
= vport
;
5302 if (lpfc_sli_issue_mbox(phba
, regvpimbox
, MBX_NOWAIT
)
5303 == MBX_NOT_FINISHED
) {
5304 mempool_free(regvpimbox
, phba
->mbox_mem_pool
);
5309 /* Start Link up / RSCN discovery on NPR nodes */
5311 lpfc_disc_start(struct lpfc_vport
*vport
)
5313 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5314 struct lpfc_hba
*phba
= vport
->phba
;
5316 uint32_t clear_la_pending
;
5318 if (!lpfc_is_link_up(phba
)) {
5319 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
5320 "3315 Link is not up %x\n",
5325 if (phba
->link_state
== LPFC_CLEAR_LA
)
5326 clear_la_pending
= 1;
5328 clear_la_pending
= 0;
5330 if (vport
->port_state
< LPFC_VPORT_READY
)
5331 vport
->port_state
= LPFC_DISC_AUTH
;
5333 lpfc_set_disctmo(vport
);
5335 vport
->fc_prevDID
= vport
->fc_myDID
;
5336 vport
->num_disc_nodes
= 0;
5338 /* Start Discovery state <hba_state> */
5339 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5340 "0202 Start Discovery hba state x%x "
5341 "Data: x%x x%x x%x\n",
5342 vport
->port_state
, vport
->fc_flag
, vport
->fc_plogi_cnt
,
5343 vport
->fc_adisc_cnt
);
5345 /* First do ADISCs - if any */
5346 num_sent
= lpfc_els_disc_adisc(vport
);
5351 /* Register the VPI for SLI3, NPIV only. */
5352 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
5353 !(vport
->fc_flag
& FC_PT2PT
) &&
5354 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
5355 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
5356 lpfc_issue_clear_la(phba
, vport
);
5357 lpfc_issue_reg_vpi(phba
, vport
);
5362 * For SLI2, we need to set port_state to READY and continue
5365 if (vport
->port_state
< LPFC_VPORT_READY
&& !clear_la_pending
) {
5366 /* If we get here, there is nothing to ADISC */
5367 lpfc_issue_clear_la(phba
, vport
);
5369 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
5370 vport
->num_disc_nodes
= 0;
5371 /* go thru NPR nodes and issue ELS PLOGIs */
5372 if (vport
->fc_npr_cnt
)
5373 lpfc_els_disc_plogi(vport
);
5375 if (!vport
->num_disc_nodes
) {
5376 spin_lock_irq(shost
->host_lock
);
5377 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
5378 spin_unlock_irq(shost
->host_lock
);
5379 lpfc_can_disctmo(vport
);
5382 vport
->port_state
= LPFC_VPORT_READY
;
5384 /* Next do PLOGIs - if any */
5385 num_sent
= lpfc_els_disc_plogi(vport
);
5390 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5391 /* Check to see if more RSCNs came in while we
5392 * were processing this one.
5394 if ((vport
->fc_rscn_id_cnt
== 0) &&
5395 (!(vport
->fc_flag
& FC_RSCN_DISCOVERY
))) {
5396 spin_lock_irq(shost
->host_lock
);
5397 vport
->fc_flag
&= ~FC_RSCN_MODE
;
5398 spin_unlock_irq(shost
->host_lock
);
5399 lpfc_can_disctmo(vport
);
5401 lpfc_els_handle_rscn(vport
);
5408 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5409 * ring the match the sppecified nodelist.
5412 lpfc_free_tx(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
5414 LIST_HEAD(completions
);
5415 struct lpfc_sli
*psli
;
5417 struct lpfc_iocbq
*iocb
, *next_iocb
;
5418 struct lpfc_sli_ring
*pring
;
5421 pring
= lpfc_phba_elsring(phba
);
5423 /* Error matching iocb on txq or txcmplq
5424 * First check the txq.
5426 spin_lock_irq(&phba
->hbalock
);
5427 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
5428 if (iocb
->context1
!= ndlp
) {
5432 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
5433 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
5435 list_move_tail(&iocb
->list
, &completions
);
5439 /* Next check the txcmplq */
5440 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
5441 if (iocb
->context1
!= ndlp
) {
5445 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
||
5446 icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
) {
5447 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
5450 spin_unlock_irq(&phba
->hbalock
);
5452 /* Cancel all the IOCBs from the completions list */
5453 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
5458 lpfc_disc_flush_list(struct lpfc_vport
*vport
)
5460 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5461 struct lpfc_hba
*phba
= vport
->phba
;
5463 if (vport
->fc_plogi_cnt
|| vport
->fc_adisc_cnt
) {
5464 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5466 if (!NLP_CHK_NODE_ACT(ndlp
))
5468 if (ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
5469 ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
) {
5470 lpfc_free_tx(phba
, ndlp
);
5477 lpfc_cleanup_discovery_resources(struct lpfc_vport
*vport
)
5479 lpfc_els_flush_rscn(vport
);
5480 lpfc_els_flush_cmd(vport
);
5481 lpfc_disc_flush_list(vport
);
5484 /*****************************************************************************/
5486 * NAME: lpfc_disc_timeout
5488 * FUNCTION: Fibre Channel driver discovery timeout routine.
5490 * EXECUTION ENVIRONMENT: interrupt only
5498 /*****************************************************************************/
5500 lpfc_disc_timeout(unsigned long ptr
)
5502 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
5503 struct lpfc_hba
*phba
= vport
->phba
;
5504 uint32_t tmo_posted
;
5505 unsigned long flags
= 0;
5507 if (unlikely(!phba
))
5510 spin_lock_irqsave(&vport
->work_port_lock
, flags
);
5511 tmo_posted
= vport
->work_port_events
& WORKER_DISC_TMO
;
5513 vport
->work_port_events
|= WORKER_DISC_TMO
;
5514 spin_unlock_irqrestore(&vport
->work_port_lock
, flags
);
5517 lpfc_worker_wake_up(phba
);
5522 lpfc_disc_timeout_handler(struct lpfc_vport
*vport
)
5524 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5525 struct lpfc_hba
*phba
= vport
->phba
;
5526 struct lpfc_sli
*psli
= &phba
->sli
;
5527 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5528 LPFC_MBOXQ_t
*initlinkmbox
;
5529 int rc
, clrlaerr
= 0;
5531 if (!(vport
->fc_flag
& FC_DISC_TMO
))
5534 spin_lock_irq(shost
->host_lock
);
5535 vport
->fc_flag
&= ~FC_DISC_TMO
;
5536 spin_unlock_irq(shost
->host_lock
);
5538 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5539 "disc timeout: state:x%x rtry:x%x flg:x%x",
5540 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
5542 switch (vport
->port_state
) {
5544 case LPFC_LOCAL_CFG_LINK
:
5546 * port_state is identically LPFC_LOCAL_CFG_LINK while
5547 * waiting for FAN timeout
5549 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_DISCOVERY
,
5550 "0221 FAN timeout\n");
5552 /* Start discovery by sending FLOGI, clean up old rpis */
5553 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5555 if (!NLP_CHK_NODE_ACT(ndlp
))
5557 if (ndlp
->nlp_state
!= NLP_STE_NPR_NODE
)
5559 if (ndlp
->nlp_type
& NLP_FABRIC
) {
5560 /* Clean up the ndlp on Fabric connections */
5561 lpfc_drop_node(vport
, ndlp
);
5563 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
5564 /* Fail outstanding IO now since device
5565 * is marked for PLOGI.
5567 lpfc_unreg_rpi(vport
, ndlp
);
5570 if (vport
->port_state
!= LPFC_FLOGI
) {
5571 if (phba
->sli_rev
<= LPFC_SLI_REV3
)
5572 lpfc_initial_flogi(vport
);
5574 lpfc_issue_init_vfi(vport
);
5581 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5582 /* Initial FLOGI timeout */
5583 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5584 "0222 Initial %s timeout\n",
5585 vport
->vpi
? "FDISC" : "FLOGI");
5587 /* Assume no Fabric and go on with discovery.
5588 * Check for outstanding ELS FLOGI to abort.
5591 /* FLOGI failed, so just use loop map to make discovery list */
5592 lpfc_disc_list_loopmap(vport
);
5594 /* Start discovery */
5595 lpfc_disc_start(vport
);
5598 case LPFC_FABRIC_CFG_LINK
:
5599 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5601 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5602 "0223 Timeout while waiting for "
5603 "NameServer login\n");
5604 /* Next look for NameServer ndlp */
5605 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5606 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5607 lpfc_els_abort(phba
, ndlp
);
5609 /* ReStart discovery */
5613 /* Check for wait for NameServer Rsp timeout */
5614 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5615 "0224 NameServer Query timeout "
5617 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5619 if (vport
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
5620 /* Try it one more time */
5621 vport
->fc_ns_retry
++;
5622 vport
->gidft_inp
= 0;
5623 rc
= lpfc_issue_gidft(vport
);
5627 vport
->fc_ns_retry
= 0;
5631 * Discovery is over.
5632 * set port_state to PORT_READY if SLI2.
5633 * cmpl_reg_vpi will set port_state to READY for SLI3.
5635 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5636 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5637 lpfc_issue_reg_vpi(phba
, vport
);
5639 lpfc_issue_clear_la(phba
, vport
);
5640 vport
->port_state
= LPFC_VPORT_READY
;
5644 /* Setup and issue mailbox INITIALIZE LINK command */
5645 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5646 if (!initlinkmbox
) {
5647 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5648 "0206 Device Discovery "
5649 "completion error\n");
5650 phba
->link_state
= LPFC_HBA_ERROR
;
5654 lpfc_linkdown(phba
);
5655 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
5656 phba
->cfg_link_speed
);
5657 initlinkmbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5658 initlinkmbox
->vport
= vport
;
5659 initlinkmbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5660 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
, MBX_NOWAIT
);
5661 lpfc_set_loopback_flag(phba
);
5662 if (rc
== MBX_NOT_FINISHED
)
5663 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
5667 case LPFC_DISC_AUTH
:
5668 /* Node Authentication timeout */
5669 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5670 "0227 Node Authentication timeout\n");
5671 lpfc_disc_flush_list(vport
);
5674 * set port_state to PORT_READY if SLI2.
5675 * cmpl_reg_vpi will set port_state to READY for SLI3.
5677 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5678 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5679 lpfc_issue_reg_vpi(phba
, vport
);
5680 else { /* NPIV Not enabled */
5681 lpfc_issue_clear_la(phba
, vport
);
5682 vport
->port_state
= LPFC_VPORT_READY
;
5687 case LPFC_VPORT_READY
:
5688 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5689 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5690 "0231 RSCN timeout Data: x%x "
5692 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5694 /* Cleanup any outstanding ELS commands */
5695 lpfc_els_flush_cmd(vport
);
5697 lpfc_els_flush_rscn(vport
);
5698 lpfc_disc_flush_list(vport
);
5703 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5704 "0273 Unexpected discovery timeout, "
5705 "vport State x%x\n", vport
->port_state
);
5709 switch (phba
->link_state
) {
5711 /* CLEAR LA timeout */
5712 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5713 "0228 CLEAR LA timeout\n");
5718 lpfc_issue_clear_la(phba
, vport
);
5720 case LPFC_LINK_UNKNOWN
:
5721 case LPFC_WARM_START
:
5722 case LPFC_INIT_START
:
5723 case LPFC_INIT_MBX_CMDS
:
5724 case LPFC_LINK_DOWN
:
5725 case LPFC_HBA_ERROR
:
5726 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5727 "0230 Unexpected timeout, hba link "
5728 "state x%x\n", phba
->link_state
);
5732 case LPFC_HBA_READY
:
5737 lpfc_disc_flush_list(vport
);
5738 if (phba
->sli_rev
!= LPFC_SLI_REV4
) {
5739 psli
->sli3_ring
[(LPFC_EXTRA_RING
)].flag
&=
5740 ~LPFC_STOP_IOCB_EVENT
;
5741 psli
->sli3_ring
[LPFC_FCP_RING
].flag
&=
5742 ~LPFC_STOP_IOCB_EVENT
;
5744 vport
->port_state
= LPFC_VPORT_READY
;
5750 * This routine handles processing a NameServer REG_LOGIN mailbox
5751 * command upon completion. It is setup in the LPFC_MBOXQ
5752 * as the completion routine when the command is
5753 * handed off to the SLI layer.
5756 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5758 MAILBOX_t
*mb
= &pmb
->u
.mb
;
5759 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
5760 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5761 struct lpfc_vport
*vport
= pmb
->vport
;
5763 pmb
->context1
= NULL
;
5764 pmb
->context2
= NULL
;
5766 if (phba
->sli_rev
< LPFC_SLI_REV4
)
5767 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
5768 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
5769 ndlp
->nlp_type
|= NLP_FABRIC
;
5770 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
5771 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
5772 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5773 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5774 kref_read(&ndlp
->kref
),
5775 ndlp
->nlp_usg_map
, ndlp
);
5777 * Start issuing Fabric-Device Management Interface (FDMI) command to
5778 * 0xfffffa (FDMI well known port).
5779 * DHBA -> DPRT -> RHBA -> RPA (physical port)
5780 * DPRT -> RPRT (vports)
5782 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
5783 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DHBA
, 0);
5785 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DPRT
, 0);
5788 /* decrement the node reference count held for this callback
5792 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
5794 mempool_free(pmb
, phba
->mbox_mem_pool
);
5800 lpfc_filter_by_rpi(struct lpfc_nodelist
*ndlp
, void *param
)
5802 uint16_t *rpi
= param
;
5804 /* check for active node */
5805 if (!NLP_CHK_NODE_ACT(ndlp
))
5808 return ndlp
->nlp_rpi
== *rpi
;
5812 lpfc_filter_by_wwpn(struct lpfc_nodelist
*ndlp
, void *param
)
5814 return memcmp(&ndlp
->nlp_portname
, param
,
5815 sizeof(ndlp
->nlp_portname
)) == 0;
5818 static struct lpfc_nodelist
*
5819 __lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
5821 struct lpfc_nodelist
*ndlp
;
5823 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5824 if (filter(ndlp
, param
)) {
5825 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5826 "3185 FIND node filter %p DID "
5827 "Data: x%p x%x x%x\n",
5828 filter
, ndlp
, ndlp
->nlp_DID
,
5833 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5834 "3186 FIND node filter %p NOT FOUND.\n", filter
);
5839 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5840 * returns the node list element pointer else return NULL.
5842 struct lpfc_nodelist
*
5843 __lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5845 return __lpfc_find_node(vport
, lpfc_filter_by_rpi
, &rpi
);
5849 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5850 * returns the node element list pointer else return NULL.
5852 struct lpfc_nodelist
*
5853 lpfc_findnode_wwpn(struct lpfc_vport
*vport
, struct lpfc_name
*wwpn
)
5855 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5856 struct lpfc_nodelist
*ndlp
;
5858 spin_lock_irq(shost
->host_lock
);
5859 ndlp
= __lpfc_find_node(vport
, lpfc_filter_by_wwpn
, wwpn
);
5860 spin_unlock_irq(shost
->host_lock
);
5865 * This routine looks up the ndlp lists for the given RPI. If the rpi
5866 * is found, the routine returns the node element list pointer else
5869 struct lpfc_nodelist
*
5870 lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5872 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5873 struct lpfc_nodelist
*ndlp
;
5875 spin_lock_irq(shost
->host_lock
);
5876 ndlp
= __lpfc_findnode_rpi(vport
, rpi
);
5877 spin_unlock_irq(shost
->host_lock
);
5882 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5883 * @phba: pointer to lpfc hba data structure.
5884 * @vpi: the physical host virtual N_Port identifier.
5886 * This routine finds a vport on a HBA (referred by @phba) through a
5887 * @vpi. The function walks the HBA's vport list and returns the address
5888 * of the vport with the matching @vpi.
5891 * NULL - No vport with the matching @vpi found
5892 * Otherwise - Address to the vport with the matching @vpi.
5895 lpfc_find_vport_by_vpid(struct lpfc_hba
*phba
, uint16_t vpi
)
5897 struct lpfc_vport
*vport
;
5898 unsigned long flags
;
5901 /* The physical ports are always vpi 0 - translate is unnecessary. */
5904 * Translate the physical vpi to the logical vpi. The
5905 * vport stores the logical vpi.
5907 for (i
= 0; i
< phba
->max_vpi
; i
++) {
5908 if (vpi
== phba
->vpi_ids
[i
])
5912 if (i
>= phba
->max_vpi
) {
5913 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
5914 "2936 Could not find Vport mapped "
5915 "to vpi %d\n", vpi
);
5920 spin_lock_irqsave(&phba
->hbalock
, flags
);
5921 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
5922 if (vport
->vpi
== i
) {
5923 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5927 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5931 struct lpfc_nodelist
*
5932 lpfc_nlp_init(struct lpfc_vport
*vport
, uint32_t did
)
5934 struct lpfc_nodelist
*ndlp
;
5935 int rpi
= LPFC_RPI_ALLOC_ERROR
;
5937 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
5938 rpi
= lpfc_sli4_alloc_rpi(vport
->phba
);
5939 if (rpi
== LPFC_RPI_ALLOC_ERROR
)
5943 ndlp
= mempool_alloc(vport
->phba
->nlp_mem_pool
, GFP_KERNEL
);
5945 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
)
5946 lpfc_sli4_free_rpi(vport
->phba
, rpi
);
5950 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
5952 lpfc_initialize_node(vport
, ndlp
, did
);
5953 INIT_LIST_HEAD(&ndlp
->nlp_listp
);
5954 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
5955 ndlp
->nlp_rpi
= rpi
;
5956 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5957 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
5958 "map:%x %p\n", ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
5960 kref_read(&ndlp
->kref
),
5961 ndlp
->nlp_usg_map
, ndlp
);
5963 ndlp
->active_rrqs_xri_bitmap
=
5964 mempool_alloc(vport
->phba
->active_rrq_pool
,
5966 if (ndlp
->active_rrqs_xri_bitmap
)
5967 memset(ndlp
->active_rrqs_xri_bitmap
, 0,
5968 ndlp
->phba
->cfg_rrq_xri_bitmap_sz
);
5973 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
5974 "node init: did:x%x",
5975 ndlp
->nlp_DID
, 0, 0);
5980 /* This routine releases all resources associated with a specifc NPort's ndlp
5981 * and mempool_free's the nodelist.
5984 lpfc_nlp_release(struct kref
*kref
)
5986 struct lpfc_hba
*phba
;
5987 unsigned long flags
;
5988 struct lpfc_nodelist
*ndlp
= container_of(kref
, struct lpfc_nodelist
,
5991 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5992 "node release: did:x%x flg:x%x type:x%x",
5993 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
5995 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
5996 "0279 lpfc_nlp_release: ndlp:x%p did %x "
5997 "usgmap:x%x refcnt:%d rpi:%x\n",
5998 (void *)ndlp
, ndlp
->nlp_DID
, ndlp
->nlp_usg_map
,
5999 kref_read(&ndlp
->kref
), ndlp
->nlp_rpi
);
6001 /* remove ndlp from action. */
6002 lpfc_nlp_remove(ndlp
->vport
, ndlp
);
6004 /* clear the ndlp active flag for all release cases */
6006 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
6007 NLP_CLR_NODE_ACT(ndlp
);
6008 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6009 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6010 lpfc_sli4_free_rpi(phba
, ndlp
->nlp_rpi
);
6012 /* free ndlp memory for final ndlp release */
6013 if (NLP_CHK_FREE_REQ(ndlp
)) {
6014 kfree(ndlp
->lat_data
);
6015 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6016 mempool_free(ndlp
->active_rrqs_xri_bitmap
,
6017 ndlp
->phba
->active_rrq_pool
);
6018 mempool_free(ndlp
, ndlp
->phba
->nlp_mem_pool
);
6022 /* This routine bumps the reference count for a ndlp structure to ensure
6023 * that one discovery thread won't free a ndlp while another discovery thread
6026 struct lpfc_nodelist
*
6027 lpfc_nlp_get(struct lpfc_nodelist
*ndlp
)
6029 struct lpfc_hba
*phba
;
6030 unsigned long flags
;
6033 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
6034 "node get: did:x%x flg:x%x refcnt:x%x",
6035 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
6036 kref_read(&ndlp
->kref
));
6037 /* The check of ndlp usage to prevent incrementing the
6038 * ndlp reference count that is in the process of being
6042 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
6043 if (!NLP_CHK_NODE_ACT(ndlp
) || NLP_CHK_FREE_ACK(ndlp
)) {
6044 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6045 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
6046 "0276 lpfc_nlp_get: ndlp:x%p "
6047 "usgmap:x%x refcnt:%d\n",
6048 (void *)ndlp
, ndlp
->nlp_usg_map
,
6049 kref_read(&ndlp
->kref
));
6052 kref_get(&ndlp
->kref
);
6053 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6058 /* This routine decrements the reference count for a ndlp structure. If the
6059 * count goes to 0, this indicates the the associated nodelist should be
6060 * freed. Returning 1 indicates the ndlp resource has been released; on the
6061 * other hand, returning 0 indicates the ndlp resource has not been released
6065 lpfc_nlp_put(struct lpfc_nodelist
*ndlp
)
6067 struct lpfc_hba
*phba
;
6068 unsigned long flags
;
6073 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
6074 "node put: did:x%x flg:x%x refcnt:x%x",
6075 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
6076 kref_read(&ndlp
->kref
));
6078 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
6079 /* Check the ndlp memory free acknowledge flag to avoid the
6080 * possible race condition that kref_put got invoked again
6081 * after previous one has done ndlp memory free.
6083 if (NLP_CHK_FREE_ACK(ndlp
)) {
6084 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6085 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
6086 "0274 lpfc_nlp_put: ndlp:x%p "
6087 "usgmap:x%x refcnt:%d\n",
6088 (void *)ndlp
, ndlp
->nlp_usg_map
,
6089 kref_read(&ndlp
->kref
));
6092 /* Check the ndlp inactivate log flag to avoid the possible
6093 * race condition that kref_put got invoked again after ndlp
6094 * is already in inactivating state.
6096 if (NLP_CHK_IACT_REQ(ndlp
)) {
6097 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6098 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
6099 "0275 lpfc_nlp_put: ndlp:x%p "
6100 "usgmap:x%x refcnt:%d\n",
6101 (void *)ndlp
, ndlp
->nlp_usg_map
,
6102 kref_read(&ndlp
->kref
));
6105 /* For last put, mark the ndlp usage flags to make sure no
6106 * other kref_get and kref_put on the same ndlp shall get
6107 * in between the process when the final kref_put has been
6108 * invoked on this ndlp.
6110 if (kref_read(&ndlp
->kref
) == 1) {
6111 /* Indicate ndlp is put to inactive state. */
6112 NLP_SET_IACT_REQ(ndlp
);
6113 /* Acknowledge ndlp memory free has been seen. */
6114 if (NLP_CHK_FREE_REQ(ndlp
))
6115 NLP_SET_FREE_ACK(ndlp
);
6117 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6118 /* Note, the kref_put returns 1 when decrementing a reference
6119 * count that was 1, it invokes the release callback function,
6120 * but it still left the reference count as 1 (not actually
6121 * performs the last decrementation). Otherwise, it actually
6122 * decrements the reference count and returns 0.
6124 return kref_put(&ndlp
->kref
, lpfc_nlp_release
);
6127 /* This routine free's the specified nodelist if it is not in use
6128 * by any other discovery thread. This routine returns 1 if the
6129 * ndlp has been freed. A return value of 0 indicates the ndlp is
6130 * not yet been released.
6133 lpfc_nlp_not_used(struct lpfc_nodelist
*ndlp
)
6135 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
6136 "node not used: did:x%x flg:x%x refcnt:x%x",
6137 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
6138 kref_read(&ndlp
->kref
));
6139 if (kref_read(&ndlp
->kref
) == 1)
6140 if (lpfc_nlp_put(ndlp
))
6146 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6147 * @phba: Pointer to hba context object.
6149 * This function iterate through all FC nodes associated
6150 * will all vports to check if there is any node with
6151 * fc_rports associated with it. If there is an fc_rport
6152 * associated with the node, then the node is either in
6153 * discovered state or its devloss_timer is pending.
6156 lpfc_fcf_inuse(struct lpfc_hba
*phba
)
6158 struct lpfc_vport
**vports
;
6160 struct lpfc_nodelist
*ndlp
;
6161 struct Scsi_Host
*shost
;
6163 vports
= lpfc_create_vport_work_array(phba
);
6165 /* If driver cannot allocate memory, indicate fcf is in use */
6169 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
6170 shost
= lpfc_shost_from_vport(vports
[i
]);
6171 spin_lock_irq(shost
->host_lock
);
6173 * IF the CVL_RCVD bit is not set then we have sent the
6175 * If dev_loss fires while we are waiting we do not want to
6178 if (!(vports
[i
]->fc_flag
& FC_VPORT_CVL_RCVD
)) {
6179 spin_unlock_irq(shost
->host_lock
);
6183 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
6184 if (NLP_CHK_NODE_ACT(ndlp
) && ndlp
->rport
&&
6185 (ndlp
->rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)) {
6187 spin_unlock_irq(shost
->host_lock
);
6189 } else if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
6191 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
6192 "2624 RPI %x DID %x flag %x "
6193 "still logged in\n",
6194 ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
6198 spin_unlock_irq(shost
->host_lock
);
6201 lpfc_destroy_vport_work_array(phba
, vports
);
6206 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6207 * @phba: Pointer to hba context object.
6208 * @mboxq: Pointer to mailbox object.
6210 * This function frees memory associated with the mailbox command.
6213 lpfc_unregister_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
6215 struct lpfc_vport
*vport
= mboxq
->vport
;
6216 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6218 if (mboxq
->u
.mb
.mbxStatus
) {
6219 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6220 "2555 UNREG_VFI mbxStatus error x%x "
6222 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
6224 spin_lock_irq(shost
->host_lock
);
6225 phba
->pport
->fc_flag
&= ~FC_VFI_REGISTERED
;
6226 spin_unlock_irq(shost
->host_lock
);
6227 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6232 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6233 * @phba: Pointer to hba context object.
6234 * @mboxq: Pointer to mailbox object.
6236 * This function frees memory associated with the mailbox command.
6239 lpfc_unregister_fcfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
6241 struct lpfc_vport
*vport
= mboxq
->vport
;
6243 if (mboxq
->u
.mb
.mbxStatus
) {
6244 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6245 "2550 UNREG_FCFI mbxStatus error x%x "
6247 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
6249 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6254 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6255 * @phba: Pointer to hba context object.
6257 * This function prepare the HBA for unregistering the currently registered
6258 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6262 lpfc_unregister_fcf_prep(struct lpfc_hba
*phba
)
6264 struct lpfc_vport
**vports
;
6265 struct lpfc_nodelist
*ndlp
;
6266 struct Scsi_Host
*shost
;
6269 /* Unregister RPIs */
6270 if (lpfc_fcf_inuse(phba
))
6271 lpfc_unreg_hba_rpis(phba
);
6273 /* At this point, all discovery is aborted */
6274 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
6276 /* Unregister VPIs */
6277 vports
= lpfc_create_vport_work_array(phba
);
6278 if (vports
&& (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))
6279 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
6280 /* Stop FLOGI/FDISC retries */
6281 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
6283 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
6284 lpfc_cleanup_pending_mbox(vports
[i
]);
6285 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6286 lpfc_sli4_unreg_all_rpis(vports
[i
]);
6287 lpfc_mbx_unreg_vpi(vports
[i
]);
6288 shost
= lpfc_shost_from_vport(vports
[i
]);
6289 spin_lock_irq(shost
->host_lock
);
6290 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
6291 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
6292 spin_unlock_irq(shost
->host_lock
);
6294 lpfc_destroy_vport_work_array(phba
, vports
);
6295 if (i
== 0 && (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))) {
6296 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
6298 lpfc_cancel_retry_delay_tmo(phba
->pport
, ndlp
);
6299 lpfc_cleanup_pending_mbox(phba
->pport
);
6300 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6301 lpfc_sli4_unreg_all_rpis(phba
->pport
);
6302 lpfc_mbx_unreg_vpi(phba
->pport
);
6303 shost
= lpfc_shost_from_vport(phba
->pport
);
6304 spin_lock_irq(shost
->host_lock
);
6305 phba
->pport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
6306 phba
->pport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
6307 spin_unlock_irq(shost
->host_lock
);
6310 /* Cleanup any outstanding ELS commands */
6311 lpfc_els_flush_all_cmd(phba
);
6313 /* Unregister the physical port VFI */
6314 rc
= lpfc_issue_unreg_vfi(phba
->pport
);
6319 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6320 * @phba: Pointer to hba context object.
6322 * This function issues synchronous unregister FCF mailbox command to HBA to
6323 * unregister the currently registered FCF record. The driver does not reset
6324 * the driver FCF usage state flags.
6326 * Return 0 if successfully issued, none-zero otherwise.
6329 lpfc_sli4_unregister_fcf(struct lpfc_hba
*phba
)
6334 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6336 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6337 "2551 UNREG_FCFI mbox allocation failed"
6338 "HBA state x%x\n", phba
->pport
->port_state
);
6341 lpfc_unreg_fcfi(mbox
, phba
->fcf
.fcfi
);
6342 mbox
->vport
= phba
->pport
;
6343 mbox
->mbox_cmpl
= lpfc_unregister_fcfi_cmpl
;
6344 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
6346 if (rc
== MBX_NOT_FINISHED
) {
6347 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6348 "2552 Unregister FCFI command failed rc x%x "
6350 rc
, phba
->pport
->port_state
);
6357 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6358 * @phba: Pointer to hba context object.
6360 * This function unregisters the currently reigstered FCF. This function
6361 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6364 lpfc_unregister_fcf_rescan(struct lpfc_hba
*phba
)
6368 /* Preparation for unregistering fcf */
6369 rc
= lpfc_unregister_fcf_prep(phba
);
6371 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
6372 "2748 Failed to prepare for unregistering "
6373 "HBA's FCF record: rc=%d\n", rc
);
6377 /* Now, unregister FCF record and reset HBA FCF state */
6378 rc
= lpfc_sli4_unregister_fcf(phba
);
6381 /* Reset HBA FCF states after successful unregister FCF */
6382 phba
->fcf
.fcf_flag
= 0;
6383 phba
->fcf
.current_rec
.flag
= 0;
6386 * If driver is not unloading, check if there is any other
6387 * FCF record that can be used for discovery.
6389 if ((phba
->pport
->load_flag
& FC_UNLOADING
) ||
6390 (phba
->link_state
< LPFC_LINK_UP
))
6393 /* This is considered as the initial FCF discovery scan */
6394 spin_lock_irq(&phba
->hbalock
);
6395 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
6396 spin_unlock_irq(&phba
->hbalock
);
6398 /* Reset FCF roundrobin bmask for new discovery */
6399 lpfc_sli4_clear_fcf_rr_bmask(phba
);
6401 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
6404 spin_lock_irq(&phba
->hbalock
);
6405 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
6406 spin_unlock_irq(&phba
->hbalock
);
6407 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6408 "2553 lpfc_unregister_unused_fcf failed "
6409 "to read FCF record HBA state x%x\n",
6410 phba
->pport
->port_state
);
6415 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6416 * @phba: Pointer to hba context object.
6418 * This function just unregisters the currently reigstered FCF. It does not
6419 * try to find another FCF for discovery.
6422 lpfc_unregister_fcf(struct lpfc_hba
*phba
)
6426 /* Preparation for unregistering fcf */
6427 rc
= lpfc_unregister_fcf_prep(phba
);
6429 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
6430 "2749 Failed to prepare for unregistering "
6431 "HBA's FCF record: rc=%d\n", rc
);
6435 /* Now, unregister FCF record and reset HBA FCF state */
6436 rc
= lpfc_sli4_unregister_fcf(phba
);
6439 /* Set proper HBA FCF states after successful unregister FCF */
6440 spin_lock_irq(&phba
->hbalock
);
6441 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
6442 spin_unlock_irq(&phba
->hbalock
);
6446 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6447 * @phba: Pointer to hba context object.
6449 * This function check if there are any connected remote port for the FCF and
6450 * if all the devices are disconnected, this function unregister FCFI.
6451 * This function also tries to use another FCF for discovery.
6454 lpfc_unregister_unused_fcf(struct lpfc_hba
*phba
)
6457 * If HBA is not running in FIP mode, if HBA does not support
6458 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6459 * registered, do nothing.
6461 spin_lock_irq(&phba
->hbalock
);
6462 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) ||
6463 !(phba
->fcf
.fcf_flag
& FCF_REGISTERED
) ||
6464 !(phba
->hba_flag
& HBA_FIP_SUPPORT
) ||
6465 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) ||
6466 (phba
->pport
->port_state
== LPFC_FLOGI
)) {
6467 spin_unlock_irq(&phba
->hbalock
);
6470 spin_unlock_irq(&phba
->hbalock
);
6472 if (lpfc_fcf_inuse(phba
))
6475 lpfc_unregister_fcf_rescan(phba
);
6479 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6480 * @phba: Pointer to hba context object.
6481 * @buff: Buffer containing the FCF connection table as in the config
6483 * This function create driver data structure for the FCF connection
6484 * record table read from config region 23.
6487 lpfc_read_fcf_conn_tbl(struct lpfc_hba
*phba
,
6490 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
6491 struct lpfc_fcf_conn_hdr
*conn_hdr
;
6492 struct lpfc_fcf_conn_rec
*conn_rec
;
6493 uint32_t record_count
;
6496 /* Free the current connect table */
6497 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
6498 &phba
->fcf_conn_rec_list
, list
) {
6499 list_del_init(&conn_entry
->list
);
6503 conn_hdr
= (struct lpfc_fcf_conn_hdr
*) buff
;
6504 record_count
= conn_hdr
->length
* sizeof(uint32_t)/
6505 sizeof(struct lpfc_fcf_conn_rec
);
6507 conn_rec
= (struct lpfc_fcf_conn_rec
*)
6508 (buff
+ sizeof(struct lpfc_fcf_conn_hdr
));
6510 for (i
= 0; i
< record_count
; i
++) {
6511 if (!(conn_rec
[i
].flags
& FCFCNCT_VALID
))
6513 conn_entry
= kzalloc(sizeof(struct lpfc_fcf_conn_entry
),
6516 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6517 "2566 Failed to allocate connection"
6522 memcpy(&conn_entry
->conn_rec
, &conn_rec
[i
],
6523 sizeof(struct lpfc_fcf_conn_rec
));
6524 list_add_tail(&conn_entry
->list
,
6525 &phba
->fcf_conn_rec_list
);
6528 if (!list_empty(&phba
->fcf_conn_rec_list
)) {
6530 list_for_each_entry(conn_entry
, &phba
->fcf_conn_rec_list
,
6532 conn_rec
= &conn_entry
->conn_rec
;
6533 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6534 "3345 FCF connection list rec[%02d]: "
6535 "flags:x%04x, vtag:x%04x, "
6536 "fabric_name:x%02x:%02x:%02x:%02x:"
6537 "%02x:%02x:%02x:%02x, "
6538 "switch_name:x%02x:%02x:%02x:%02x:"
6539 "%02x:%02x:%02x:%02x\n", i
++,
6540 conn_rec
->flags
, conn_rec
->vlan_tag
,
6541 conn_rec
->fabric_name
[0],
6542 conn_rec
->fabric_name
[1],
6543 conn_rec
->fabric_name
[2],
6544 conn_rec
->fabric_name
[3],
6545 conn_rec
->fabric_name
[4],
6546 conn_rec
->fabric_name
[5],
6547 conn_rec
->fabric_name
[6],
6548 conn_rec
->fabric_name
[7],
6549 conn_rec
->switch_name
[0],
6550 conn_rec
->switch_name
[1],
6551 conn_rec
->switch_name
[2],
6552 conn_rec
->switch_name
[3],
6553 conn_rec
->switch_name
[4],
6554 conn_rec
->switch_name
[5],
6555 conn_rec
->switch_name
[6],
6556 conn_rec
->switch_name
[7]);
6562 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6563 * @phba: Pointer to hba context object.
6564 * @buff: Buffer containing the FCoE parameter data structure.
6566 * This function update driver data structure with config
6567 * parameters read from config region 23.
6570 lpfc_read_fcoe_param(struct lpfc_hba
*phba
,
6573 struct lpfc_fip_param_hdr
*fcoe_param_hdr
;
6574 struct lpfc_fcoe_params
*fcoe_param
;
6576 fcoe_param_hdr
= (struct lpfc_fip_param_hdr
*)
6578 fcoe_param
= (struct lpfc_fcoe_params
*)
6579 (buff
+ sizeof(struct lpfc_fip_param_hdr
));
6581 if ((fcoe_param_hdr
->parm_version
!= FIPP_VERSION
) ||
6582 (fcoe_param_hdr
->length
!= FCOE_PARAM_LENGTH
))
6585 if (fcoe_param_hdr
->parm_flags
& FIPP_VLAN_VALID
) {
6586 phba
->valid_vlan
= 1;
6587 phba
->vlan_id
= le16_to_cpu(fcoe_param
->vlan_tag
) &
6591 phba
->fc_map
[0] = fcoe_param
->fc_map
[0];
6592 phba
->fc_map
[1] = fcoe_param
->fc_map
[1];
6593 phba
->fc_map
[2] = fcoe_param
->fc_map
[2];
6598 * lpfc_get_rec_conf23 - Get a record type in config region data.
6599 * @buff: Buffer containing config region 23 data.
6600 * @size: Size of the data buffer.
6601 * @rec_type: Record type to be searched.
6603 * This function searches config region data to find the beginning
6604 * of the record specified by record_type. If record found, this
6605 * function return pointer to the record else return NULL.
6608 lpfc_get_rec_conf23(uint8_t *buff
, uint32_t size
, uint8_t rec_type
)
6610 uint32_t offset
= 0, rec_length
;
6612 if ((buff
[0] == LPFC_REGION23_LAST_REC
) ||
6613 (size
< sizeof(uint32_t)))
6616 rec_length
= buff
[offset
+ 1];
6619 * One TLV record has one word header and number of data words
6620 * specified in the rec_length field of the record header.
6622 while ((offset
+ rec_length
* sizeof(uint32_t) + sizeof(uint32_t))
6624 if (buff
[offset
] == rec_type
)
6625 return &buff
[offset
];
6627 if (buff
[offset
] == LPFC_REGION23_LAST_REC
)
6630 offset
+= rec_length
* sizeof(uint32_t) + sizeof(uint32_t);
6631 rec_length
= buff
[offset
+ 1];
6637 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6638 * @phba: Pointer to lpfc_hba data structure.
6639 * @buff: Buffer containing config region 23 data.
6640 * @size: Size of the data buffer.
6642 * This function parses the FCoE config parameters in config region 23 and
6643 * populate driver data structure with the parameters.
6646 lpfc_parse_fcoe_conf(struct lpfc_hba
*phba
,
6650 uint32_t offset
= 0;
6654 * If data size is less than 2 words signature and version cannot be
6657 if (size
< 2*sizeof(uint32_t))
6660 /* Check the region signature first */
6661 if (memcmp(buff
, LPFC_REGION23_SIGNATURE
, 4)) {
6662 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6663 "2567 Config region 23 has bad signature\n");
6669 /* Check the data structure version */
6670 if (buff
[offset
] != LPFC_REGION23_VERSION
) {
6671 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6672 "2568 Config region 23 has bad version\n");
6677 /* Read FCoE param record */
6678 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6679 size
- offset
, FCOE_PARAM_TYPE
);
6681 lpfc_read_fcoe_param(phba
, rec_ptr
);
6683 /* Read FCF connection table */
6684 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6685 size
- offset
, FCOE_CONN_TBL_TYPE
);
6687 lpfc_read_fcf_conn_tbl(phba
, rec_ptr
);