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 ((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 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
706 lpfc_sli_handle_slow_ring_event(phba
, pring
,
711 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
712 (!list_empty(&pring
->txq
)))
713 lpfc_drain_txq(phba
);
715 * Turn on Ring interrupts
717 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
718 spin_lock_irq(&phba
->hbalock
);
719 control
= readl(phba
->HCregaddr
);
720 if (!(control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
))) {
721 lpfc_debugfs_slow_ring_trc(phba
,
722 "WRK Enable ring: cntl:x%x hacopy:x%x",
723 control
, ha_copy
, 0);
725 control
|= (HC_R0INT_ENA
<< LPFC_ELS_RING
);
726 writel(control
, phba
->HCregaddr
);
727 readl(phba
->HCregaddr
); /* flush */
729 lpfc_debugfs_slow_ring_trc(phba
,
730 "WRK Ring ok: cntl:x%x hacopy:x%x",
731 control
, ha_copy
, 0);
733 spin_unlock_irq(&phba
->hbalock
);
736 lpfc_work_list_done(phba
);
740 lpfc_do_work(void *p
)
742 struct lpfc_hba
*phba
= p
;
745 set_user_nice(current
, MIN_NICE
);
746 current
->flags
|= PF_NOFREEZE
;
747 phba
->data_flags
= 0;
749 while (!kthread_should_stop()) {
750 /* wait and check worker queue activities */
751 rc
= wait_event_interruptible(phba
->work_waitq
,
752 (test_and_clear_bit(LPFC_DATA_READY
,
754 || kthread_should_stop()));
755 /* Signal wakeup shall terminate the worker thread */
757 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
758 "0433 Wakeup on signal: rc=x%x\n", rc
);
762 /* Attend pending lpfc data processing */
763 lpfc_work_done(phba
);
765 phba
->worker_thread
= NULL
;
766 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
767 "0432 Worker thread stopped.\n");
772 * This is only called to handle FC worker events. Since this a rare
773 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
774 * embedding it in the IOCB.
777 lpfc_workq_post_event(struct lpfc_hba
*phba
, void *arg1
, void *arg2
,
780 struct lpfc_work_evt
*evtp
;
784 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
785 * be queued to worker thread for processing
787 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_ATOMIC
);
791 evtp
->evt_arg1
= arg1
;
792 evtp
->evt_arg2
= arg2
;
795 spin_lock_irqsave(&phba
->hbalock
, flags
);
796 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
797 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
799 lpfc_worker_wake_up(phba
);
805 lpfc_cleanup_rpis(struct lpfc_vport
*vport
, int remove
)
807 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
808 struct lpfc_hba
*phba
= vport
->phba
;
809 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
811 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
812 if (!NLP_CHK_NODE_ACT(ndlp
))
814 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
816 if ((phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) ||
817 ((vport
->port_type
== LPFC_NPIV_PORT
) &&
818 (ndlp
->nlp_DID
== NameServer_DID
)))
819 lpfc_unreg_rpi(vport
, ndlp
);
821 /* Leave Fabric nodes alone on link down */
822 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
823 (!remove
&& ndlp
->nlp_type
& NLP_FABRIC
))
825 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
828 : NLP_EVT_DEVICE_RECOVERY
);
830 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) {
831 if (phba
->sli_rev
== LPFC_SLI_REV4
)
832 lpfc_sli4_unreg_all_rpis(vport
);
833 lpfc_mbx_unreg_vpi(vport
);
834 spin_lock_irq(shost
->host_lock
);
835 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
836 spin_unlock_irq(shost
->host_lock
);
841 lpfc_port_link_failure(struct lpfc_vport
*vport
)
843 lpfc_vport_set_state(vport
, FC_VPORT_LINKDOWN
);
845 /* Cleanup any outstanding received buffers */
846 lpfc_cleanup_rcv_buffers(vport
);
848 /* Cleanup any outstanding RSCN activity */
849 lpfc_els_flush_rscn(vport
);
851 /* Cleanup any outstanding ELS commands */
852 lpfc_els_flush_cmd(vport
);
854 lpfc_cleanup_rpis(vport
, 0);
856 /* Turn off discovery timer if its running */
857 lpfc_can_disctmo(vport
);
861 lpfc_linkdown_port(struct lpfc_vport
*vport
)
863 struct lpfc_hba
*phba
= vport
->phba
;
864 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
866 if (phba
->cfg_enable_fc4_type
!= LPFC_ENABLE_NVME
)
867 fc_host_post_event(shost
, fc_get_event_number(),
868 FCH_EVT_LINKDOWN
, 0);
870 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
871 "Link Down: state:x%x rtry:x%x flg:x%x",
872 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
874 lpfc_port_link_failure(vport
);
876 /* Stop delayed Nport discovery */
877 spin_lock_irq(shost
->host_lock
);
878 vport
->fc_flag
&= ~FC_DISC_DELAYED
;
879 spin_unlock_irq(shost
->host_lock
);
880 del_timer_sync(&vport
->delayed_disc_tmo
);
884 lpfc_linkdown(struct lpfc_hba
*phba
)
886 struct lpfc_vport
*vport
= phba
->pport
;
887 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
888 struct lpfc_vport
**vports
;
892 if (phba
->link_state
== LPFC_LINK_DOWN
)
895 /* Block all SCSI stack I/Os */
896 lpfc_scsi_dev_block(phba
);
898 spin_lock_irq(&phba
->hbalock
);
899 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
900 spin_unlock_irq(&phba
->hbalock
);
901 if (phba
->link_state
> LPFC_LINK_DOWN
) {
902 phba
->link_state
= LPFC_LINK_DOWN
;
903 spin_lock_irq(shost
->host_lock
);
904 phba
->pport
->fc_flag
&= ~FC_LBIT
;
905 spin_unlock_irq(shost
->host_lock
);
907 vports
= lpfc_create_vport_work_array(phba
);
908 if (vports
!= NULL
) {
909 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
910 /* Issue a LINK DOWN event to all nodes */
911 lpfc_linkdown_port(vports
[i
]);
913 vports
[i
]->fc_myDID
= 0;
915 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
916 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) {
917 if (phba
->nvmet_support
)
918 lpfc_nvmet_update_targetport(phba
);
920 lpfc_nvme_update_localport(vports
[i
]);
924 lpfc_destroy_vport_work_array(phba
, vports
);
925 /* Clean up any firmware default rpi's */
926 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
928 lpfc_unreg_did(phba
, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS
, mb
);
930 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
931 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
932 == MBX_NOT_FINISHED
) {
933 mempool_free(mb
, phba
->mbox_mem_pool
);
937 /* Setup myDID for link up if we are in pt2pt mode */
938 if (phba
->pport
->fc_flag
& FC_PT2PT
) {
939 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
941 lpfc_config_link(phba
, mb
);
942 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
944 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
945 == MBX_NOT_FINISHED
) {
946 mempool_free(mb
, phba
->mbox_mem_pool
);
949 spin_lock_irq(shost
->host_lock
);
950 phba
->pport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
951 spin_unlock_irq(shost
->host_lock
);
957 lpfc_linkup_cleanup_nodes(struct lpfc_vport
*vport
)
959 struct lpfc_nodelist
*ndlp
;
961 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
962 if (!NLP_CHK_NODE_ACT(ndlp
))
964 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
966 if (ndlp
->nlp_type
& NLP_FABRIC
) {
967 /* On Linkup its safe to clean up the ndlp
968 * from Fabric connections.
970 if (ndlp
->nlp_DID
!= Fabric_DID
)
971 lpfc_unreg_rpi(vport
, ndlp
);
972 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
973 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
974 /* Fail outstanding IO now since device is
977 lpfc_unreg_rpi(vport
, ndlp
);
983 lpfc_linkup_port(struct lpfc_vport
*vport
)
985 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
986 struct lpfc_hba
*phba
= vport
->phba
;
988 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
991 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
992 "Link Up: top:x%x speed:x%x flg:x%x",
993 phba
->fc_topology
, phba
->fc_linkspeed
, phba
->link_flag
);
995 /* If NPIV is not enabled, only bring the physical port up */
996 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
997 (vport
!= phba
->pport
))
1000 if (phba
->cfg_enable_fc4_type
!= LPFC_ENABLE_NVME
)
1001 fc_host_post_event(shost
, fc_get_event_number(),
1004 spin_lock_irq(shost
->host_lock
);
1005 vport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
1006 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
1007 vport
->fc_flag
|= FC_NDISC_ACTIVE
;
1008 vport
->fc_ns_retry
= 0;
1009 spin_unlock_irq(shost
->host_lock
);
1011 if (vport
->fc_flag
& FC_LBIT
)
1012 lpfc_linkup_cleanup_nodes(vport
);
1017 lpfc_linkup(struct lpfc_hba
*phba
)
1019 struct lpfc_vport
**vports
;
1022 phba
->link_state
= LPFC_LINK_UP
;
1024 /* Unblock fabric iocbs if they are blocked */
1025 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
1026 del_timer_sync(&phba
->fabric_block_timer
);
1028 vports
= lpfc_create_vport_work_array(phba
);
1030 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++)
1031 lpfc_linkup_port(vports
[i
]);
1032 lpfc_destroy_vport_work_array(phba
, vports
);
1038 * This routine handles processing a CLEAR_LA mailbox
1039 * command upon completion. It is setup in the LPFC_MBOXQ
1040 * as the completion routine when the command is
1041 * handed off to the SLI layer. SLI3 only.
1044 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1046 struct lpfc_vport
*vport
= pmb
->vport
;
1047 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1048 struct lpfc_sli
*psli
= &phba
->sli
;
1049 MAILBOX_t
*mb
= &pmb
->u
.mb
;
1052 /* Since we don't do discovery right now, turn these off here */
1053 psli
->sli3_ring
[LPFC_EXTRA_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1054 psli
->sli3_ring
[LPFC_FCP_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1056 /* Check for error */
1057 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
1058 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1059 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1060 "0320 CLEAR_LA mbxStatus error x%x hba "
1062 mb
->mbxStatus
, vport
->port_state
);
1063 phba
->link_state
= LPFC_HBA_ERROR
;
1067 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
1068 phba
->link_state
= LPFC_HBA_READY
;
1070 spin_lock_irq(&phba
->hbalock
);
1071 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1072 control
= readl(phba
->HCregaddr
);
1073 control
|= HC_LAINT_ENA
;
1074 writel(control
, phba
->HCregaddr
);
1075 readl(phba
->HCregaddr
); /* flush */
1076 spin_unlock_irq(&phba
->hbalock
);
1077 mempool_free(pmb
, phba
->mbox_mem_pool
);
1081 /* Device Discovery completes */
1082 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1083 "0225 Device Discovery completes\n");
1084 mempool_free(pmb
, phba
->mbox_mem_pool
);
1086 spin_lock_irq(shost
->host_lock
);
1087 vport
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
1088 spin_unlock_irq(shost
->host_lock
);
1090 lpfc_can_disctmo(vport
);
1092 /* turn on Link Attention interrupts */
1094 spin_lock_irq(&phba
->hbalock
);
1095 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1096 control
= readl(phba
->HCregaddr
);
1097 control
|= HC_LAINT_ENA
;
1098 writel(control
, phba
->HCregaddr
);
1099 readl(phba
->HCregaddr
); /* flush */
1100 spin_unlock_irq(&phba
->hbalock
);
1107 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1109 struct lpfc_vport
*vport
= pmb
->vport
;
1111 if (pmb
->u
.mb
.mbxStatus
)
1114 mempool_free(pmb
, phba
->mbox_mem_pool
);
1116 /* don't perform discovery for SLI4 loopback diagnostic test */
1117 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
1118 !(phba
->hba_flag
& HBA_FCOE_MODE
) &&
1119 (phba
->link_flag
& LS_LOOPBACK_MODE
))
1122 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
&&
1123 vport
->fc_flag
& FC_PUBLIC_LOOP
&&
1124 !(vport
->fc_flag
& FC_LBIT
)) {
1125 /* Need to wait for FAN - use discovery timer
1126 * for timeout. port_state is identically
1127 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1129 lpfc_set_disctmo(vport
);
1133 /* Start discovery by sending a FLOGI. port_state is identically
1134 * LPFC_FLOGI while waiting for FLOGI cmpl
1136 if (vport
->port_state
!= LPFC_FLOGI
)
1137 lpfc_initial_flogi(vport
);
1138 else if (vport
->fc_flag
& FC_PT2PT
)
1139 lpfc_disc_start(vport
);
1143 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1144 "0306 CONFIG_LINK mbxStatus error x%x "
1146 pmb
->u
.mb
.mbxStatus
, vport
->port_state
);
1147 mempool_free(pmb
, phba
->mbox_mem_pool
);
1149 lpfc_linkdown(phba
);
1151 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
1152 "0200 CONFIG_LINK bad hba state x%x\n",
1155 lpfc_issue_clear_la(phba
, vport
);
1160 * lpfc_sli4_clear_fcf_rr_bmask
1161 * @phba pointer to the struct lpfc_hba for this port.
1162 * This fucnction resets the round robin bit mask and clears the
1163 * fcf priority list. The list deletions are done while holding the
1164 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1165 * from the lpfc_fcf_pri record.
1168 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba
*phba
)
1170 struct lpfc_fcf_pri
*fcf_pri
;
1171 struct lpfc_fcf_pri
*next_fcf_pri
;
1172 memset(phba
->fcf
.fcf_rr_bmask
, 0, sizeof(*phba
->fcf
.fcf_rr_bmask
));
1173 spin_lock_irq(&phba
->hbalock
);
1174 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
1175 &phba
->fcf
.fcf_pri_list
, list
) {
1176 list_del_init(&fcf_pri
->list
);
1177 fcf_pri
->fcf_rec
.flag
= 0;
1179 spin_unlock_irq(&phba
->hbalock
);
1182 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
1184 struct lpfc_vport
*vport
= mboxq
->vport
;
1186 if (mboxq
->u
.mb
.mbxStatus
) {
1187 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1188 "2017 REG_FCFI mbxStatus error x%x "
1190 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
1194 /* Start FCoE discovery by sending a FLOGI. */
1195 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
, &mboxq
->u
.mqe
.un
.reg_fcfi
);
1196 /* Set the FCFI registered flag */
1197 spin_lock_irq(&phba
->hbalock
);
1198 phba
->fcf
.fcf_flag
|= FCF_REGISTERED
;
1199 spin_unlock_irq(&phba
->hbalock
);
1201 /* If there is a pending FCoE event, restart FCF table scan. */
1202 if ((!(phba
->hba_flag
& FCF_RR_INPROG
)) &&
1203 lpfc_check_pending_fcoe_event(phba
, LPFC_UNREG_FCF
))
1206 /* Mark successful completion of FCF table scan */
1207 spin_lock_irq(&phba
->hbalock
);
1208 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1209 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1210 if (vport
->port_state
!= LPFC_FLOGI
) {
1211 phba
->hba_flag
|= FCF_RR_INPROG
;
1212 spin_unlock_irq(&phba
->hbalock
);
1213 lpfc_issue_init_vfi(vport
);
1216 spin_unlock_irq(&phba
->hbalock
);
1220 spin_lock_irq(&phba
->hbalock
);
1221 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1222 spin_unlock_irq(&phba
->hbalock
);
1224 mempool_free(mboxq
, phba
->mbox_mem_pool
);
1228 * lpfc_fab_name_match - Check if the fcf fabric name match.
1229 * @fab_name: pointer to fabric name.
1230 * @new_fcf_record: pointer to fcf record.
1232 * This routine compare the fcf record's fabric name with provided
1233 * fabric name. If the fabric name are identical this function
1234 * returns 1 else return 0.
1237 lpfc_fab_name_match(uint8_t *fab_name
, struct fcf_record
*new_fcf_record
)
1239 if (fab_name
[0] != bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
))
1241 if (fab_name
[1] != bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
))
1243 if (fab_name
[2] != bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
))
1245 if (fab_name
[3] != bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
))
1247 if (fab_name
[4] != bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
))
1249 if (fab_name
[5] != bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
))
1251 if (fab_name
[6] != bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
))
1253 if (fab_name
[7] != bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
))
1259 * lpfc_sw_name_match - Check if the fcf switch name match.
1260 * @fab_name: pointer to fabric name.
1261 * @new_fcf_record: pointer to fcf record.
1263 * This routine compare the fcf record's switch name with provided
1264 * switch name. If the switch name are identical this function
1265 * returns 1 else return 0.
1268 lpfc_sw_name_match(uint8_t *sw_name
, struct fcf_record
*new_fcf_record
)
1270 if (sw_name
[0] != bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
))
1272 if (sw_name
[1] != bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
))
1274 if (sw_name
[2] != bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
))
1276 if (sw_name
[3] != bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
))
1278 if (sw_name
[4] != bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
))
1280 if (sw_name
[5] != bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
))
1282 if (sw_name
[6] != bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
))
1284 if (sw_name
[7] != bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
))
1290 * lpfc_mac_addr_match - Check if the fcf mac address match.
1291 * @mac_addr: pointer to mac address.
1292 * @new_fcf_record: pointer to fcf record.
1294 * This routine compare the fcf record's mac address with HBA's
1295 * FCF mac address. If the mac addresses are identical this function
1296 * returns 1 else return 0.
1299 lpfc_mac_addr_match(uint8_t *mac_addr
, struct fcf_record
*new_fcf_record
)
1301 if (mac_addr
[0] != bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
))
1303 if (mac_addr
[1] != bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
))
1305 if (mac_addr
[2] != bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
))
1307 if (mac_addr
[3] != bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
))
1309 if (mac_addr
[4] != bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
))
1311 if (mac_addr
[5] != bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
))
1317 lpfc_vlan_id_match(uint16_t curr_vlan_id
, uint16_t new_vlan_id
)
1319 return (curr_vlan_id
== new_vlan_id
);
1323 * lpfc_update_fcf_record - Update driver fcf record
1324 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1325 * @phba: pointer to lpfc hba data structure.
1326 * @fcf_index: Index for the lpfc_fcf_record.
1327 * @new_fcf_record: pointer to hba fcf record.
1329 * This routine updates the driver FCF priority record from the new HBA FCF
1330 * record. This routine is called with the host lock held.
1333 __lpfc_update_fcf_record_pri(struct lpfc_hba
*phba
, uint16_t fcf_index
,
1334 struct fcf_record
*new_fcf_record
1337 struct lpfc_fcf_pri
*fcf_pri
;
1339 lockdep_assert_held(&phba
->hbalock
);
1341 fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
1342 fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
1343 /* FCF record priority */
1344 fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
1349 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1350 * @fcf: pointer to driver fcf record.
1351 * @new_fcf_record: pointer to fcf record.
1353 * This routine copies the FCF information from the FCF
1354 * record to lpfc_hba data structure.
1357 lpfc_copy_fcf_record(struct lpfc_fcf_rec
*fcf_rec
,
1358 struct fcf_record
*new_fcf_record
)
1361 fcf_rec
->fabric_name
[0] =
1362 bf_get(lpfc_fcf_record_fab_name_0
, new_fcf_record
);
1363 fcf_rec
->fabric_name
[1] =
1364 bf_get(lpfc_fcf_record_fab_name_1
, new_fcf_record
);
1365 fcf_rec
->fabric_name
[2] =
1366 bf_get(lpfc_fcf_record_fab_name_2
, new_fcf_record
);
1367 fcf_rec
->fabric_name
[3] =
1368 bf_get(lpfc_fcf_record_fab_name_3
, new_fcf_record
);
1369 fcf_rec
->fabric_name
[4] =
1370 bf_get(lpfc_fcf_record_fab_name_4
, new_fcf_record
);
1371 fcf_rec
->fabric_name
[5] =
1372 bf_get(lpfc_fcf_record_fab_name_5
, new_fcf_record
);
1373 fcf_rec
->fabric_name
[6] =
1374 bf_get(lpfc_fcf_record_fab_name_6
, new_fcf_record
);
1375 fcf_rec
->fabric_name
[7] =
1376 bf_get(lpfc_fcf_record_fab_name_7
, new_fcf_record
);
1378 fcf_rec
->mac_addr
[0] = bf_get(lpfc_fcf_record_mac_0
, new_fcf_record
);
1379 fcf_rec
->mac_addr
[1] = bf_get(lpfc_fcf_record_mac_1
, new_fcf_record
);
1380 fcf_rec
->mac_addr
[2] = bf_get(lpfc_fcf_record_mac_2
, new_fcf_record
);
1381 fcf_rec
->mac_addr
[3] = bf_get(lpfc_fcf_record_mac_3
, new_fcf_record
);
1382 fcf_rec
->mac_addr
[4] = bf_get(lpfc_fcf_record_mac_4
, new_fcf_record
);
1383 fcf_rec
->mac_addr
[5] = bf_get(lpfc_fcf_record_mac_5
, new_fcf_record
);
1384 /* FCF record index */
1385 fcf_rec
->fcf_indx
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
1386 /* FCF record priority */
1387 fcf_rec
->priority
= new_fcf_record
->fip_priority
;
1389 fcf_rec
->switch_name
[0] =
1390 bf_get(lpfc_fcf_record_switch_name_0
, new_fcf_record
);
1391 fcf_rec
->switch_name
[1] =
1392 bf_get(lpfc_fcf_record_switch_name_1
, new_fcf_record
);
1393 fcf_rec
->switch_name
[2] =
1394 bf_get(lpfc_fcf_record_switch_name_2
, new_fcf_record
);
1395 fcf_rec
->switch_name
[3] =
1396 bf_get(lpfc_fcf_record_switch_name_3
, new_fcf_record
);
1397 fcf_rec
->switch_name
[4] =
1398 bf_get(lpfc_fcf_record_switch_name_4
, new_fcf_record
);
1399 fcf_rec
->switch_name
[5] =
1400 bf_get(lpfc_fcf_record_switch_name_5
, new_fcf_record
);
1401 fcf_rec
->switch_name
[6] =
1402 bf_get(lpfc_fcf_record_switch_name_6
, new_fcf_record
);
1403 fcf_rec
->switch_name
[7] =
1404 bf_get(lpfc_fcf_record_switch_name_7
, new_fcf_record
);
1408 * lpfc_update_fcf_record - Update driver fcf record
1409 * @phba: pointer to lpfc hba data structure.
1410 * @fcf_rec: pointer to driver fcf record.
1411 * @new_fcf_record: pointer to hba fcf record.
1412 * @addr_mode: address mode to be set to the driver fcf record.
1413 * @vlan_id: vlan tag to be set to the driver fcf record.
1414 * @flag: flag bits to be set to the driver fcf record.
1416 * This routine updates the driver FCF record from the new HBA FCF record
1417 * together with the address mode, vlan_id, and other informations. This
1418 * routine is called with the host lock held.
1421 __lpfc_update_fcf_record(struct lpfc_hba
*phba
, struct lpfc_fcf_rec
*fcf_rec
,
1422 struct fcf_record
*new_fcf_record
, uint32_t addr_mode
,
1423 uint16_t vlan_id
, uint32_t flag
)
1425 lockdep_assert_held(&phba
->hbalock
);
1427 /* Copy the fields from the HBA's FCF record */
1428 lpfc_copy_fcf_record(fcf_rec
, new_fcf_record
);
1429 /* Update other fields of driver FCF record */
1430 fcf_rec
->addr_mode
= addr_mode
;
1431 fcf_rec
->vlan_id
= vlan_id
;
1432 fcf_rec
->flag
|= (flag
| RECORD_VALID
);
1433 __lpfc_update_fcf_record_pri(phba
,
1434 bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
),
1439 * lpfc_register_fcf - Register the FCF with hba.
1440 * @phba: pointer to lpfc hba data structure.
1442 * This routine issues a register fcfi mailbox command to register
1446 lpfc_register_fcf(struct lpfc_hba
*phba
)
1448 LPFC_MBOXQ_t
*fcf_mbxq
;
1451 spin_lock_irq(&phba
->hbalock
);
1452 /* If the FCF is not available do nothing. */
1453 if (!(phba
->fcf
.fcf_flag
& FCF_AVAILABLE
)) {
1454 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1455 spin_unlock_irq(&phba
->hbalock
);
1459 /* The FCF is already registered, start discovery */
1460 if (phba
->fcf
.fcf_flag
& FCF_REGISTERED
) {
1461 phba
->fcf
.fcf_flag
|= (FCF_SCAN_DONE
| FCF_IN_USE
);
1462 phba
->hba_flag
&= ~FCF_TS_INPROG
;
1463 if (phba
->pport
->port_state
!= LPFC_FLOGI
&&
1464 phba
->pport
->fc_flag
& FC_FABRIC
) {
1465 phba
->hba_flag
|= FCF_RR_INPROG
;
1466 spin_unlock_irq(&phba
->hbalock
);
1467 lpfc_initial_flogi(phba
->pport
);
1470 spin_unlock_irq(&phba
->hbalock
);
1473 spin_unlock_irq(&phba
->hbalock
);
1475 fcf_mbxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1477 spin_lock_irq(&phba
->hbalock
);
1478 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1479 spin_unlock_irq(&phba
->hbalock
);
1483 lpfc_reg_fcfi(phba
, fcf_mbxq
);
1484 fcf_mbxq
->vport
= phba
->pport
;
1485 fcf_mbxq
->mbox_cmpl
= lpfc_mbx_cmpl_reg_fcfi
;
1486 rc
= lpfc_sli_issue_mbox(phba
, fcf_mbxq
, MBX_NOWAIT
);
1487 if (rc
== MBX_NOT_FINISHED
) {
1488 spin_lock_irq(&phba
->hbalock
);
1489 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1490 spin_unlock_irq(&phba
->hbalock
);
1491 mempool_free(fcf_mbxq
, phba
->mbox_mem_pool
);
1498 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1499 * @phba: pointer to lpfc hba data structure.
1500 * @new_fcf_record: pointer to fcf record.
1501 * @boot_flag: Indicates if this record used by boot bios.
1502 * @addr_mode: The address mode to be used by this FCF
1503 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1505 * This routine compare the fcf record with connect list obtained from the
1506 * config region to decide if this FCF can be used for SAN discovery. It returns
1507 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1508 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1509 * is used by boot bios and addr_mode will indicate the addressing mode to be
1510 * used for this FCF when the function returns.
1511 * If the FCF record need to be used with a particular vlan id, the vlan is
1512 * set in the vlan_id on return of the function. If not VLAN tagging need to
1513 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1516 lpfc_match_fcf_conn_list(struct lpfc_hba
*phba
,
1517 struct fcf_record
*new_fcf_record
,
1518 uint32_t *boot_flag
, uint32_t *addr_mode
,
1521 struct lpfc_fcf_conn_entry
*conn_entry
;
1522 int i
, j
, fcf_vlan_id
= 0;
1524 /* Find the lowest VLAN id in the FCF record */
1525 for (i
= 0; i
< 512; i
++) {
1526 if (new_fcf_record
->vlan_bitmap
[i
]) {
1527 fcf_vlan_id
= i
* 8;
1529 while (!((new_fcf_record
->vlan_bitmap
[i
] >> j
) & 1)) {
1537 /* FCF not valid/available or solicitation in progress */
1538 if (!bf_get(lpfc_fcf_record_fcf_avail
, new_fcf_record
) ||
1539 !bf_get(lpfc_fcf_record_fcf_valid
, new_fcf_record
) ||
1540 bf_get(lpfc_fcf_record_fcf_sol
, new_fcf_record
))
1543 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
1545 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1547 if (phba
->valid_vlan
)
1548 *vlan_id
= phba
->vlan_id
;
1550 *vlan_id
= LPFC_FCOE_NULL_VID
;
1555 * If there are no FCF connection table entry, driver connect to all
1558 if (list_empty(&phba
->fcf_conn_rec_list
)) {
1560 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1564 * When there are no FCF connect entries, use driver's default
1565 * addressing mode - FPMA.
1567 if (*addr_mode
& LPFC_FCF_FPMA
)
1568 *addr_mode
= LPFC_FCF_FPMA
;
1570 /* If FCF record report a vlan id use that vlan id */
1572 *vlan_id
= fcf_vlan_id
;
1574 *vlan_id
= LPFC_FCOE_NULL_VID
;
1578 list_for_each_entry(conn_entry
,
1579 &phba
->fcf_conn_rec_list
, list
) {
1580 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_VALID
))
1583 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_FBNM_VALID
) &&
1584 !lpfc_fab_name_match(conn_entry
->conn_rec
.fabric_name
,
1587 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_SWNM_VALID
) &&
1588 !lpfc_sw_name_match(conn_entry
->conn_rec
.switch_name
,
1591 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
) {
1593 * If the vlan bit map does not have the bit set for the
1594 * vlan id to be used, then it is not a match.
1596 if (!(new_fcf_record
->vlan_bitmap
1597 [conn_entry
->conn_rec
.vlan_tag
/ 8] &
1598 (1 << (conn_entry
->conn_rec
.vlan_tag
% 8))))
1603 * If connection record does not support any addressing mode,
1604 * skip the FCF record.
1606 if (!(bf_get(lpfc_fcf_record_mac_addr_prov
, new_fcf_record
)
1607 & (LPFC_FCF_FPMA
| LPFC_FCF_SPMA
)))
1611 * Check if the connection record specifies a required
1614 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1615 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)) {
1618 * If SPMA required but FCF not support this continue.
1620 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1621 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1622 new_fcf_record
) & LPFC_FCF_SPMA
))
1626 * If FPMA required but FCF not support this continue.
1628 if (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1629 !(bf_get(lpfc_fcf_record_mac_addr_prov
,
1630 new_fcf_record
) & LPFC_FCF_FPMA
))
1635 * This fcf record matches filtering criteria.
1637 if (conn_entry
->conn_rec
.flags
& FCFCNCT_BOOT
)
1643 * If user did not specify any addressing mode, or if the
1644 * preferred addressing mode specified by user is not supported
1645 * by FCF, allow fabric to pick the addressing mode.
1647 *addr_mode
= bf_get(lpfc_fcf_record_mac_addr_prov
,
1650 * If the user specified a required address mode, assign that
1653 if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1654 (!(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
)))
1655 *addr_mode
= (conn_entry
->conn_rec
.flags
&
1657 LPFC_FCF_SPMA
: LPFC_FCF_FPMA
;
1659 * If the user specified a preferred address mode, use the
1660 * addr mode only if FCF support the addr_mode.
1662 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1663 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1664 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1665 (*addr_mode
& LPFC_FCF_SPMA
))
1666 *addr_mode
= LPFC_FCF_SPMA
;
1667 else if ((conn_entry
->conn_rec
.flags
& FCFCNCT_AM_VALID
) &&
1668 (conn_entry
->conn_rec
.flags
& FCFCNCT_AM_PREFERRED
) &&
1669 !(conn_entry
->conn_rec
.flags
& FCFCNCT_AM_SPMA
) &&
1670 (*addr_mode
& LPFC_FCF_FPMA
))
1671 *addr_mode
= LPFC_FCF_FPMA
;
1673 /* If matching connect list has a vlan id, use it */
1674 if (conn_entry
->conn_rec
.flags
& FCFCNCT_VLAN_VALID
)
1675 *vlan_id
= conn_entry
->conn_rec
.vlan_tag
;
1677 * If no vlan id is specified in connect list, use the vlan id
1680 else if (fcf_vlan_id
)
1681 *vlan_id
= fcf_vlan_id
;
1683 *vlan_id
= LPFC_FCOE_NULL_VID
;
1692 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1693 * @phba: pointer to lpfc hba data structure.
1694 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1696 * This function check if there is any fcoe event pending while driver
1697 * scan FCF entries. If there is any pending event, it will restart the
1698 * FCF saning and return 1 else return 0.
1701 lpfc_check_pending_fcoe_event(struct lpfc_hba
*phba
, uint8_t unreg_fcf
)
1704 * If the Link is up and no FCoE events while in the
1705 * FCF discovery, no need to restart FCF discovery.
1707 if ((phba
->link_state
>= LPFC_LINK_UP
) &&
1708 (phba
->fcoe_eventtag
== phba
->fcoe_eventtag_at_fcf_scan
))
1711 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1712 "2768 Pending link or FCF event during current "
1713 "handling of the previous event: link_state:x%x, "
1714 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1715 phba
->link_state
, phba
->fcoe_eventtag_at_fcf_scan
,
1716 phba
->fcoe_eventtag
);
1718 spin_lock_irq(&phba
->hbalock
);
1719 phba
->fcf
.fcf_flag
&= ~FCF_AVAILABLE
;
1720 spin_unlock_irq(&phba
->hbalock
);
1722 if (phba
->link_state
>= LPFC_LINK_UP
) {
1723 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1724 "2780 Restart FCF table scan due to "
1725 "pending FCF event:evt_tag_at_scan:x%x, "
1726 "evt_tag_current:x%x\n",
1727 phba
->fcoe_eventtag_at_fcf_scan
,
1728 phba
->fcoe_eventtag
);
1729 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
1732 * Do not continue FCF discovery and clear FCF_TS_INPROG
1735 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
1736 "2833 Stop FCF discovery process due to link "
1737 "state change (x%x)\n", phba
->link_state
);
1738 spin_lock_irq(&phba
->hbalock
);
1739 phba
->hba_flag
&= ~(FCF_TS_INPROG
| FCF_RR_INPROG
);
1740 phba
->fcf
.fcf_flag
&= ~(FCF_REDISC_FOV
| FCF_DISCOVERY
);
1741 spin_unlock_irq(&phba
->hbalock
);
1744 /* Unregister the currently registered FCF if required */
1746 spin_lock_irq(&phba
->hbalock
);
1747 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
1748 spin_unlock_irq(&phba
->hbalock
);
1749 lpfc_sli4_unregister_fcf(phba
);
1755 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1756 * @phba: pointer to lpfc hba data structure.
1757 * @fcf_cnt: number of eligible fcf record seen so far.
1759 * This function makes an running random selection decision on FCF record to
1760 * use through a sequence of @fcf_cnt eligible FCF records with equal
1761 * probability. To perform integer manunipulation of random numbers with
1762 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1763 * from prandom_u32() are taken as the random random number generated.
1765 * Returns true when outcome is for the newly read FCF record should be
1766 * chosen; otherwise, return false when outcome is for keeping the previously
1767 * chosen FCF record.
1770 lpfc_sli4_new_fcf_random_select(struct lpfc_hba
*phba
, uint32_t fcf_cnt
)
1774 /* Get 16-bit uniform random number */
1775 rand_num
= 0xFFFF & prandom_u32();
1777 /* Decision with probability 1/fcf_cnt */
1778 if ((fcf_cnt
* rand_num
) < 0xFFFF)
1785 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1786 * @phba: pointer to lpfc hba data structure.
1787 * @mboxq: pointer to mailbox object.
1788 * @next_fcf_index: pointer to holder of next fcf index.
1790 * This routine parses the non-embedded fcf mailbox command by performing the
1791 * necessarily error checking, non-embedded read FCF record mailbox command
1792 * SGE parsing, and endianness swapping.
1794 * Returns the pointer to the new FCF record in the non-embedded mailbox
1795 * command DMA memory if successfully, other NULL.
1797 static struct fcf_record
*
1798 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
1799 uint16_t *next_fcf_index
)
1802 struct lpfc_mbx_sge sge
;
1803 struct lpfc_mbx_read_fcf_tbl
*read_fcf
;
1804 uint32_t shdr_status
, shdr_add_status
, if_type
;
1805 union lpfc_sli4_cfg_shdr
*shdr
;
1806 struct fcf_record
*new_fcf_record
;
1808 /* Get the first SGE entry from the non-embedded DMA memory. This
1809 * routine only uses a single SGE.
1811 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
1812 if (unlikely(!mboxq
->sge_array
)) {
1813 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1814 "2524 Failed to get the non-embedded SGE "
1815 "virtual address\n");
1818 virt_addr
= mboxq
->sge_array
->addr
[0];
1820 shdr
= (union lpfc_sli4_cfg_shdr
*)virt_addr
;
1821 lpfc_sli_pcimem_bcopy(shdr
, shdr
,
1822 sizeof(union lpfc_sli4_cfg_shdr
));
1823 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
1824 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
1825 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
1826 if (shdr_status
|| shdr_add_status
) {
1827 if (shdr_status
== STATUS_FCF_TABLE_EMPTY
||
1828 if_type
== LPFC_SLI_INTF_IF_TYPE_2
)
1829 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1830 "2726 READ_FCF_RECORD Indicates empty "
1833 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
1834 "2521 READ_FCF_RECORD mailbox failed "
1835 "with status x%x add_status x%x, "
1836 "mbx\n", shdr_status
, shdr_add_status
);
1840 /* Interpreting the returned information of the FCF record */
1841 read_fcf
= (struct lpfc_mbx_read_fcf_tbl
*)virt_addr
;
1842 lpfc_sli_pcimem_bcopy(read_fcf
, read_fcf
,
1843 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1844 *next_fcf_index
= bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx
, read_fcf
);
1845 new_fcf_record
= (struct fcf_record
*)(virt_addr
+
1846 sizeof(struct lpfc_mbx_read_fcf_tbl
));
1847 lpfc_sli_pcimem_bcopy(new_fcf_record
, new_fcf_record
,
1848 offsetof(struct fcf_record
, vlan_bitmap
));
1849 new_fcf_record
->word137
= le32_to_cpu(new_fcf_record
->word137
);
1850 new_fcf_record
->word138
= le32_to_cpu(new_fcf_record
->word138
);
1852 return new_fcf_record
;
1856 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1857 * @phba: pointer to lpfc hba data structure.
1858 * @fcf_record: pointer to the fcf record.
1859 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1860 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1862 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1866 lpfc_sli4_log_fcf_record_info(struct lpfc_hba
*phba
,
1867 struct fcf_record
*fcf_record
,
1869 uint16_t next_fcf_index
)
1871 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1872 "2764 READ_FCF_RECORD:\n"
1873 "\tFCF_Index : x%x\n"
1874 "\tFCF_Avail : x%x\n"
1875 "\tFCF_Valid : x%x\n"
1877 "\tFIP_Priority : x%x\n"
1878 "\tMAC_Provider : x%x\n"
1879 "\tLowest VLANID : x%x\n"
1880 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1881 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1882 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1883 "\tNext_FCF_Index: x%x\n",
1884 bf_get(lpfc_fcf_record_fcf_index
, fcf_record
),
1885 bf_get(lpfc_fcf_record_fcf_avail
, fcf_record
),
1886 bf_get(lpfc_fcf_record_fcf_valid
, fcf_record
),
1887 bf_get(lpfc_fcf_record_fcf_sol
, fcf_record
),
1888 fcf_record
->fip_priority
,
1889 bf_get(lpfc_fcf_record_mac_addr_prov
, fcf_record
),
1891 bf_get(lpfc_fcf_record_mac_0
, fcf_record
),
1892 bf_get(lpfc_fcf_record_mac_1
, fcf_record
),
1893 bf_get(lpfc_fcf_record_mac_2
, fcf_record
),
1894 bf_get(lpfc_fcf_record_mac_3
, fcf_record
),
1895 bf_get(lpfc_fcf_record_mac_4
, fcf_record
),
1896 bf_get(lpfc_fcf_record_mac_5
, fcf_record
),
1897 bf_get(lpfc_fcf_record_fab_name_0
, fcf_record
),
1898 bf_get(lpfc_fcf_record_fab_name_1
, fcf_record
),
1899 bf_get(lpfc_fcf_record_fab_name_2
, fcf_record
),
1900 bf_get(lpfc_fcf_record_fab_name_3
, fcf_record
),
1901 bf_get(lpfc_fcf_record_fab_name_4
, fcf_record
),
1902 bf_get(lpfc_fcf_record_fab_name_5
, fcf_record
),
1903 bf_get(lpfc_fcf_record_fab_name_6
, fcf_record
),
1904 bf_get(lpfc_fcf_record_fab_name_7
, fcf_record
),
1905 bf_get(lpfc_fcf_record_switch_name_0
, fcf_record
),
1906 bf_get(lpfc_fcf_record_switch_name_1
, fcf_record
),
1907 bf_get(lpfc_fcf_record_switch_name_2
, fcf_record
),
1908 bf_get(lpfc_fcf_record_switch_name_3
, fcf_record
),
1909 bf_get(lpfc_fcf_record_switch_name_4
, fcf_record
),
1910 bf_get(lpfc_fcf_record_switch_name_5
, fcf_record
),
1911 bf_get(lpfc_fcf_record_switch_name_6
, fcf_record
),
1912 bf_get(lpfc_fcf_record_switch_name_7
, fcf_record
),
1917 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1918 * @phba: pointer to lpfc hba data structure.
1919 * @fcf_rec: pointer to an existing FCF record.
1920 * @new_fcf_record: pointer to a new FCF record.
1921 * @new_vlan_id: vlan id from the new FCF record.
1923 * This function performs matching test of a new FCF record against an existing
1924 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1925 * will not be used as part of the FCF record matching criteria.
1927 * Returns true if all the fields matching, otherwise returns false.
1930 lpfc_sli4_fcf_record_match(struct lpfc_hba
*phba
,
1931 struct lpfc_fcf_rec
*fcf_rec
,
1932 struct fcf_record
*new_fcf_record
,
1933 uint16_t new_vlan_id
)
1935 if (new_vlan_id
!= LPFC_FCOE_IGNORE_VID
)
1936 if (!lpfc_vlan_id_match(fcf_rec
->vlan_id
, new_vlan_id
))
1938 if (!lpfc_mac_addr_match(fcf_rec
->mac_addr
, new_fcf_record
))
1940 if (!lpfc_sw_name_match(fcf_rec
->switch_name
, new_fcf_record
))
1942 if (!lpfc_fab_name_match(fcf_rec
->fabric_name
, new_fcf_record
))
1944 if (fcf_rec
->priority
!= new_fcf_record
->fip_priority
)
1950 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1951 * @vport: Pointer to vport object.
1952 * @fcf_index: index to next fcf.
1954 * This function processing the roundrobin fcf failover to next fcf index.
1955 * When this function is invoked, there will be a current fcf registered
1957 * Return: 0 for continue retrying flogi on currently registered fcf;
1958 * 1 for stop flogi on currently registered fcf;
1960 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport
*vport
, uint16_t fcf_index
)
1962 struct lpfc_hba
*phba
= vport
->phba
;
1965 if (fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
) {
1966 spin_lock_irq(&phba
->hbalock
);
1967 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
1968 spin_unlock_irq(&phba
->hbalock
);
1969 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1970 "2872 Devloss tmo with no eligible "
1971 "FCF, unregister in-use FCF (x%x) "
1972 "and rescan FCF table\n",
1973 phba
->fcf
.current_rec
.fcf_indx
);
1974 lpfc_unregister_fcf_rescan(phba
);
1975 goto stop_flogi_current_fcf
;
1977 /* Mark the end to FLOGI roundrobin failover */
1978 phba
->hba_flag
&= ~FCF_RR_INPROG
;
1979 /* Allow action to new fcf asynchronous event */
1980 phba
->fcf
.fcf_flag
&= ~(FCF_AVAILABLE
| FCF_SCAN_DONE
);
1981 spin_unlock_irq(&phba
->hbalock
);
1982 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
1983 "2865 No FCF available, stop roundrobin FCF "
1984 "failover and change port state:x%x/x%x\n",
1985 phba
->pport
->port_state
, LPFC_VPORT_UNKNOWN
);
1986 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
1987 goto stop_flogi_current_fcf
;
1989 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_ELS
,
1990 "2794 Try FLOGI roundrobin FCF failover to "
1991 "(x%x)\n", fcf_index
);
1992 rc
= lpfc_sli4_fcf_rr_read_fcf_rec(phba
, fcf_index
);
1994 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
| LOG_ELS
,
1995 "2761 FLOGI roundrobin FCF failover "
1996 "failed (rc:x%x) to read FCF (x%x)\n",
1997 rc
, phba
->fcf
.current_rec
.fcf_indx
);
1999 goto stop_flogi_current_fcf
;
2003 stop_flogi_current_fcf
:
2004 lpfc_can_disctmo(vport
);
2009 * lpfc_sli4_fcf_pri_list_del
2010 * @phba: pointer to lpfc hba data structure.
2011 * @fcf_index the index of the fcf record to delete
2012 * This routine checks the on list flag of the fcf_index to be deleted.
2013 * If it is one the list then it is removed from the list, and the flag
2014 * is cleared. This routine grab the hbalock before removing the fcf
2015 * record from the list.
2017 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba
*phba
,
2020 struct lpfc_fcf_pri
*new_fcf_pri
;
2022 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2023 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2024 "3058 deleting idx x%x pri x%x flg x%x\n",
2025 fcf_index
, new_fcf_pri
->fcf_rec
.priority
,
2026 new_fcf_pri
->fcf_rec
.flag
);
2027 spin_lock_irq(&phba
->hbalock
);
2028 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
) {
2029 if (phba
->fcf
.current_rec
.priority
==
2030 new_fcf_pri
->fcf_rec
.priority
)
2031 phba
->fcf
.eligible_fcf_cnt
--;
2032 list_del_init(&new_fcf_pri
->list
);
2033 new_fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_ON_PRI_LIST
;
2035 spin_unlock_irq(&phba
->hbalock
);
2039 * lpfc_sli4_set_fcf_flogi_fail
2040 * @phba: pointer to lpfc hba data structure.
2041 * @fcf_index the index of the fcf record to update
2042 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2043 * flag so the the round robin slection for the particular priority level
2044 * will try a different fcf record that does not have this bit set.
2045 * If the fcf record is re-read for any reason this flag is cleared brfore
2046 * adding it to the priority list.
2049 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba
*phba
, uint16_t fcf_index
)
2051 struct lpfc_fcf_pri
*new_fcf_pri
;
2052 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2053 spin_lock_irq(&phba
->hbalock
);
2054 new_fcf_pri
->fcf_rec
.flag
|= LPFC_FCF_FLOGI_FAILED
;
2055 spin_unlock_irq(&phba
->hbalock
);
2059 * lpfc_sli4_fcf_pri_list_add
2060 * @phba: pointer to lpfc hba data structure.
2061 * @fcf_index the index of the fcf record to add
2062 * This routine checks the priority of the fcf_index to be added.
2063 * If it is a lower priority than the current head of the fcf_pri list
2064 * then it is added to the list in the right order.
2065 * If it is the same priority as the current head of the list then it
2066 * is added to the head of the list and its bit in the rr_bmask is set.
2067 * If the fcf_index to be added is of a higher priority than the current
2068 * head of the list then the rr_bmask is cleared, its bit is set in the
2069 * rr_bmask and it is added to the head of the list.
2071 * 0=success 1=failure
2073 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba
*phba
,
2075 struct fcf_record
*new_fcf_record
)
2077 uint16_t current_fcf_pri
;
2078 uint16_t last_index
;
2079 struct lpfc_fcf_pri
*fcf_pri
;
2080 struct lpfc_fcf_pri
*next_fcf_pri
;
2081 struct lpfc_fcf_pri
*new_fcf_pri
;
2084 new_fcf_pri
= &phba
->fcf
.fcf_pri
[fcf_index
];
2085 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2086 "3059 adding idx x%x pri x%x flg x%x\n",
2087 fcf_index
, new_fcf_record
->fip_priority
,
2088 new_fcf_pri
->fcf_rec
.flag
);
2089 spin_lock_irq(&phba
->hbalock
);
2090 if (new_fcf_pri
->fcf_rec
.flag
& LPFC_FCF_ON_PRI_LIST
)
2091 list_del_init(&new_fcf_pri
->list
);
2092 new_fcf_pri
->fcf_rec
.fcf_index
= fcf_index
;
2093 new_fcf_pri
->fcf_rec
.priority
= new_fcf_record
->fip_priority
;
2094 if (list_empty(&phba
->fcf
.fcf_pri_list
)) {
2095 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2096 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2097 new_fcf_pri
->fcf_rec
.fcf_index
);
2101 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
2102 LPFC_SLI4_FCF_TBL_INDX_MAX
);
2103 if (last_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
2104 ret
= 0; /* Empty rr list */
2107 current_fcf_pri
= phba
->fcf
.fcf_pri
[last_index
].fcf_rec
.priority
;
2108 if (new_fcf_pri
->fcf_rec
.priority
<= current_fcf_pri
) {
2109 list_add(&new_fcf_pri
->list
, &phba
->fcf
.fcf_pri_list
);
2110 if (new_fcf_pri
->fcf_rec
.priority
< current_fcf_pri
) {
2111 memset(phba
->fcf
.fcf_rr_bmask
, 0,
2112 sizeof(*phba
->fcf
.fcf_rr_bmask
));
2113 /* fcfs_at_this_priority_level = 1; */
2114 phba
->fcf
.eligible_fcf_cnt
= 1;
2116 /* fcfs_at_this_priority_level++; */
2117 phba
->fcf
.eligible_fcf_cnt
++;
2118 ret
= lpfc_sli4_fcf_rr_index_set(phba
,
2119 new_fcf_pri
->fcf_rec
.fcf_index
);
2123 list_for_each_entry_safe(fcf_pri
, next_fcf_pri
,
2124 &phba
->fcf
.fcf_pri_list
, list
) {
2125 if (new_fcf_pri
->fcf_rec
.priority
<=
2126 fcf_pri
->fcf_rec
.priority
) {
2127 if (fcf_pri
->list
.prev
== &phba
->fcf
.fcf_pri_list
)
2128 list_add(&new_fcf_pri
->list
,
2129 &phba
->fcf
.fcf_pri_list
);
2131 list_add(&new_fcf_pri
->list
,
2132 &((struct lpfc_fcf_pri
*)
2133 fcf_pri
->list
.prev
)->list
);
2136 } else if (fcf_pri
->list
.next
== &phba
->fcf
.fcf_pri_list
2137 || new_fcf_pri
->fcf_rec
.priority
<
2138 next_fcf_pri
->fcf_rec
.priority
) {
2139 list_add(&new_fcf_pri
->list
, &fcf_pri
->list
);
2143 if (new_fcf_pri
->fcf_rec
.priority
> fcf_pri
->fcf_rec
.priority
)
2149 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2150 new_fcf_pri
->fcf_rec
.flag
= LPFC_FCF_ON_PRI_LIST
;
2151 spin_unlock_irq(&phba
->hbalock
);
2156 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2157 * @phba: pointer to lpfc hba data structure.
2158 * @mboxq: pointer to mailbox object.
2160 * This function iterates through all the fcf records available in
2161 * HBA and chooses the optimal FCF record for discovery. After finding
2162 * the FCF for discovery it registers the FCF record and kicks start
2164 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2165 * use an FCF record which matches fabric name and mac address of the
2166 * currently used FCF record.
2167 * If the driver supports only one FCF, it will try to use the FCF record
2168 * used by BOOT_BIOS.
2171 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2173 struct fcf_record
*new_fcf_record
;
2174 uint32_t boot_flag
, addr_mode
;
2175 uint16_t fcf_index
, next_fcf_index
;
2176 struct lpfc_fcf_rec
*fcf_rec
= NULL
;
2177 uint16_t vlan_id
= LPFC_FCOE_NULL_VID
;
2178 bool select_new_fcf
;
2181 /* If there is pending FCoE event restart FCF table scan */
2182 if (lpfc_check_pending_fcoe_event(phba
, LPFC_SKIP_UNREG_FCF
)) {
2183 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2187 /* Parse the FCF record from the non-embedded mailbox command */
2188 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2190 if (!new_fcf_record
) {
2191 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2192 "2765 Mailbox command READ_FCF_RECORD "
2193 "failed to retrieve a FCF record.\n");
2194 /* Let next new FCF event trigger fast failover */
2195 spin_lock_irq(&phba
->hbalock
);
2196 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2197 spin_unlock_irq(&phba
->hbalock
);
2198 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2202 /* Check the FCF record against the connection list */
2203 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2204 &addr_mode
, &vlan_id
);
2206 /* Log the FCF record information if turned on */
2207 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2211 * If the fcf record does not match with connect list entries
2212 * read the next entry; otherwise, this is an eligible FCF
2213 * record for roundrobin FCF failover.
2216 lpfc_sli4_fcf_pri_list_del(phba
,
2217 bf_get(lpfc_fcf_record_fcf_index
,
2219 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2220 "2781 FCF (x%x) failed connection "
2221 "list check: (x%x/x%x/%x)\n",
2222 bf_get(lpfc_fcf_record_fcf_index
,
2224 bf_get(lpfc_fcf_record_fcf_avail
,
2226 bf_get(lpfc_fcf_record_fcf_valid
,
2228 bf_get(lpfc_fcf_record_fcf_sol
,
2230 if ((phba
->fcf
.fcf_flag
& FCF_IN_USE
) &&
2231 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2232 new_fcf_record
, LPFC_FCOE_IGNORE_VID
)) {
2233 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) !=
2234 phba
->fcf
.current_rec
.fcf_indx
) {
2235 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2236 "2862 FCF (x%x) matches property "
2237 "of in-use FCF (x%x)\n",
2238 bf_get(lpfc_fcf_record_fcf_index
,
2240 phba
->fcf
.current_rec
.fcf_indx
);
2244 * In case the current in-use FCF record becomes
2245 * invalid/unavailable during FCF discovery that
2246 * was not triggered by fast FCF failover process,
2247 * treat it as fast FCF failover.
2249 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
) &&
2250 !(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2251 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2252 "2835 Invalid in-use FCF "
2253 "(x%x), enter FCF failover "
2255 phba
->fcf
.current_rec
.fcf_indx
);
2256 spin_lock_irq(&phba
->hbalock
);
2257 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2258 spin_unlock_irq(&phba
->hbalock
);
2259 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2260 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2261 LPFC_FCOE_FCF_GET_FIRST
);
2267 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2268 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
,
2275 * If this is not the first FCF discovery of the HBA, use last
2276 * FCF record for the discovery. The condition that a rescan
2277 * matches the in-use FCF record: fabric name, switch name, mac
2278 * address, and vlan_id.
2280 spin_lock_irq(&phba
->hbalock
);
2281 if (phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2282 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2283 lpfc_sli4_fcf_record_match(phba
, &phba
->fcf
.current_rec
,
2284 new_fcf_record
, vlan_id
)) {
2285 if (bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
) ==
2286 phba
->fcf
.current_rec
.fcf_indx
) {
2287 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2288 if (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
)
2289 /* Stop FCF redisc wait timer */
2290 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2292 else if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2293 /* Fast failover, mark completed */
2294 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2295 spin_unlock_irq(&phba
->hbalock
);
2296 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2297 "2836 New FCF matches in-use "
2298 "FCF (x%x), port_state:x%x, "
2300 phba
->fcf
.current_rec
.fcf_indx
,
2301 phba
->pport
->port_state
,
2302 phba
->pport
->fc_flag
);
2305 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
2306 "2863 New FCF (x%x) matches "
2307 "property of in-use FCF (x%x)\n",
2308 bf_get(lpfc_fcf_record_fcf_index
,
2310 phba
->fcf
.current_rec
.fcf_indx
);
2313 * Read next FCF record from HBA searching for the matching
2314 * with in-use record only if not during the fast failover
2315 * period. In case of fast failover period, it shall try to
2316 * determine whether the FCF record just read should be the
2319 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)) {
2320 spin_unlock_irq(&phba
->hbalock
);
2325 * Update on failover FCF record only if it's in FCF fast-failover
2326 * period; otherwise, update on current FCF record.
2328 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
)
2329 fcf_rec
= &phba
->fcf
.failover_rec
;
2331 fcf_rec
= &phba
->fcf
.current_rec
;
2333 if (phba
->fcf
.fcf_flag
& FCF_AVAILABLE
) {
2335 * If the driver FCF record does not have boot flag
2336 * set and new hba fcf record has boot flag set, use
2337 * the new hba fcf record.
2339 if (boot_flag
&& !(fcf_rec
->flag
& BOOT_ENABLE
)) {
2340 /* Choose this FCF record */
2341 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2342 "2837 Update current FCF record "
2343 "(x%x) with new FCF record (x%x)\n",
2345 bf_get(lpfc_fcf_record_fcf_index
,
2347 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2348 addr_mode
, vlan_id
, BOOT_ENABLE
);
2349 spin_unlock_irq(&phba
->hbalock
);
2353 * If the driver FCF record has boot flag set and the
2354 * new hba FCF record does not have boot flag, read
2355 * the next FCF record.
2357 if (!boot_flag
&& (fcf_rec
->flag
& BOOT_ENABLE
)) {
2358 spin_unlock_irq(&phba
->hbalock
);
2362 * If the new hba FCF record has lower priority value
2363 * than the driver FCF record, use the new record.
2365 if (new_fcf_record
->fip_priority
< fcf_rec
->priority
) {
2366 /* Choose the new FCF record with lower priority */
2367 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2368 "2838 Update current FCF record "
2369 "(x%x) with new FCF record (x%x)\n",
2371 bf_get(lpfc_fcf_record_fcf_index
,
2373 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2374 addr_mode
, vlan_id
, 0);
2375 /* Reset running random FCF selection count */
2376 phba
->fcf
.eligible_fcf_cnt
= 1;
2377 } else if (new_fcf_record
->fip_priority
== fcf_rec
->priority
) {
2378 /* Update running random FCF selection count */
2379 phba
->fcf
.eligible_fcf_cnt
++;
2380 select_new_fcf
= lpfc_sli4_new_fcf_random_select(phba
,
2381 phba
->fcf
.eligible_fcf_cnt
);
2382 if (select_new_fcf
) {
2383 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2384 "2839 Update current FCF record "
2385 "(x%x) with new FCF record (x%x)\n",
2387 bf_get(lpfc_fcf_record_fcf_index
,
2389 /* Choose the new FCF by random selection */
2390 __lpfc_update_fcf_record(phba
, fcf_rec
,
2392 addr_mode
, vlan_id
, 0);
2395 spin_unlock_irq(&phba
->hbalock
);
2399 * This is the first suitable FCF record, choose this record for
2400 * initial best-fit FCF.
2403 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2404 "2840 Update initial FCF candidate "
2406 bf_get(lpfc_fcf_record_fcf_index
,
2408 __lpfc_update_fcf_record(phba
, fcf_rec
, new_fcf_record
,
2409 addr_mode
, vlan_id
, (boot_flag
?
2411 phba
->fcf
.fcf_flag
|= FCF_AVAILABLE
;
2412 /* Setup initial running random FCF selection count */
2413 phba
->fcf
.eligible_fcf_cnt
= 1;
2415 spin_unlock_irq(&phba
->hbalock
);
2419 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2420 if (next_fcf_index
== LPFC_FCOE_FCF_NEXT_NONE
|| next_fcf_index
== 0) {
2421 if (phba
->fcf
.fcf_flag
& FCF_REDISC_FOV
) {
2423 * Case of FCF fast failover scan
2427 * It has not found any suitable FCF record, cancel
2428 * FCF scan inprogress, and do nothing
2430 if (!(phba
->fcf
.failover_rec
.flag
& RECORD_VALID
)) {
2431 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2432 "2782 No suitable FCF found: "
2434 phba
->fcoe_eventtag_at_fcf_scan
,
2435 bf_get(lpfc_fcf_record_fcf_index
,
2437 spin_lock_irq(&phba
->hbalock
);
2438 if (phba
->hba_flag
& HBA_DEVLOSS_TMO
) {
2439 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2440 spin_unlock_irq(&phba
->hbalock
);
2441 /* Unregister in-use FCF and rescan */
2442 lpfc_printf_log(phba
, KERN_INFO
,
2444 "2864 On devloss tmo "
2445 "unreg in-use FCF and "
2446 "rescan FCF table\n");
2447 lpfc_unregister_fcf_rescan(phba
);
2451 * Let next new FCF event trigger fast failover
2453 phba
->hba_flag
&= ~FCF_TS_INPROG
;
2454 spin_unlock_irq(&phba
->hbalock
);
2458 * It has found a suitable FCF record that is not
2459 * the same as in-use FCF record, unregister the
2460 * in-use FCF record, replace the in-use FCF record
2461 * with the new FCF record, mark FCF fast failover
2462 * completed, and then start register the new FCF
2466 /* Unregister the current in-use FCF record */
2467 lpfc_unregister_fcf(phba
);
2469 /* Replace in-use record with the new record */
2470 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2471 "2842 Replace in-use FCF (x%x) "
2472 "with failover FCF (x%x)\n",
2473 phba
->fcf
.current_rec
.fcf_indx
,
2474 phba
->fcf
.failover_rec
.fcf_indx
);
2475 memcpy(&phba
->fcf
.current_rec
,
2476 &phba
->fcf
.failover_rec
,
2477 sizeof(struct lpfc_fcf_rec
));
2479 * Mark the fast FCF failover rediscovery completed
2480 * and the start of the first round of the roundrobin
2483 spin_lock_irq(&phba
->hbalock
);
2484 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_FOV
;
2485 spin_unlock_irq(&phba
->hbalock
);
2486 /* Register to the new FCF record */
2487 lpfc_register_fcf(phba
);
2490 * In case of transaction period to fast FCF failover,
2491 * do nothing when search to the end of the FCF table.
2493 if ((phba
->fcf
.fcf_flag
& FCF_REDISC_EVT
) ||
2494 (phba
->fcf
.fcf_flag
& FCF_REDISC_PEND
))
2497 if (phba
->cfg_fcf_failover_policy
== LPFC_FCF_FOV
&&
2498 phba
->fcf
.fcf_flag
& FCF_IN_USE
) {
2500 * In case the current in-use FCF record no
2501 * longer existed during FCF discovery that
2502 * was not triggered by fast FCF failover
2503 * process, treat it as fast FCF failover.
2505 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2506 "2841 In-use FCF record (x%x) "
2507 "not reported, entering fast "
2508 "FCF failover mode scanning.\n",
2509 phba
->fcf
.current_rec
.fcf_indx
);
2510 spin_lock_irq(&phba
->hbalock
);
2511 phba
->fcf
.fcf_flag
|= FCF_REDISC_FOV
;
2512 spin_unlock_irq(&phba
->hbalock
);
2513 lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
2514 LPFC_FCOE_FCF_GET_FIRST
);
2517 /* Register to the new FCF record */
2518 lpfc_register_fcf(phba
);
2521 lpfc_sli4_fcf_scan_read_fcf_rec(phba
, next_fcf_index
);
2525 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2526 lpfc_register_fcf(phba
);
2532 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2533 * @phba: pointer to lpfc hba data structure.
2534 * @mboxq: pointer to mailbox object.
2536 * This is the callback function for FLOGI failure roundrobin FCF failover
2537 * read FCF record mailbox command from the eligible FCF record bmask for
2538 * performing the failover. If the FCF read back is not valid/available, it
2539 * fails through to retrying FLOGI to the currently registered FCF again.
2540 * Otherwise, if the FCF read back is valid and available, it will set the
2541 * newly read FCF record to the failover FCF record, unregister currently
2542 * registered FCF record, copy the failover FCF record to the current
2543 * FCF record, and then register the current FCF record before proceeding
2544 * to trying FLOGI on the new failover FCF.
2547 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2549 struct fcf_record
*new_fcf_record
;
2550 uint32_t boot_flag
, addr_mode
;
2551 uint16_t next_fcf_index
, fcf_index
;
2552 uint16_t current_fcf_index
;
2556 /* If link state is not up, stop the roundrobin failover process */
2557 if (phba
->link_state
< LPFC_LINK_UP
) {
2558 spin_lock_irq(&phba
->hbalock
);
2559 phba
->fcf
.fcf_flag
&= ~FCF_DISCOVERY
;
2560 phba
->hba_flag
&= ~FCF_RR_INPROG
;
2561 spin_unlock_irq(&phba
->hbalock
);
2565 /* Parse the FCF record from the non-embedded mailbox command */
2566 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2568 if (!new_fcf_record
) {
2569 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
2570 "2766 Mailbox command READ_FCF_RECORD "
2571 "failed to retrieve a FCF record. "
2572 "hba_flg x%x fcf_flg x%x\n", phba
->hba_flag
,
2573 phba
->fcf
.fcf_flag
);
2574 lpfc_unregister_fcf_rescan(phba
);
2578 /* Get the needed parameters from FCF record */
2579 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2580 &addr_mode
, &vlan_id
);
2582 /* Log the FCF record information if turned on */
2583 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2586 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2588 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2589 "2848 Remove ineligible FCF (x%x) from "
2590 "from roundrobin bmask\n", fcf_index
);
2591 /* Clear roundrobin bmask bit for ineligible FCF */
2592 lpfc_sli4_fcf_rr_index_clear(phba
, fcf_index
);
2593 /* Perform next round of roundrobin FCF failover */
2594 fcf_index
= lpfc_sli4_fcf_rr_next_index_get(phba
);
2595 rc
= lpfc_sli4_fcf_rr_next_proc(phba
->pport
, fcf_index
);
2601 if (fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
2602 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2603 "2760 Perform FLOGI roundrobin FCF failover: "
2604 "FCF (x%x) back to FCF (x%x)\n",
2605 phba
->fcf
.current_rec
.fcf_indx
, fcf_index
);
2606 /* Wait 500 ms before retrying FLOGI to current FCF */
2608 lpfc_issue_init_vfi(phba
->pport
);
2612 /* Upload new FCF record to the failover FCF record */
2613 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2614 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2615 phba
->fcf
.failover_rec
.fcf_indx
, fcf_index
);
2616 spin_lock_irq(&phba
->hbalock
);
2617 __lpfc_update_fcf_record(phba
, &phba
->fcf
.failover_rec
,
2618 new_fcf_record
, addr_mode
, vlan_id
,
2619 (boot_flag
? BOOT_ENABLE
: 0));
2620 spin_unlock_irq(&phba
->hbalock
);
2622 current_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
2624 /* Unregister the current in-use FCF record */
2625 lpfc_unregister_fcf(phba
);
2627 /* Replace in-use record with the new record */
2628 memcpy(&phba
->fcf
.current_rec
, &phba
->fcf
.failover_rec
,
2629 sizeof(struct lpfc_fcf_rec
));
2631 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2632 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2633 "(x%x) to FCF (x%x)\n", current_fcf_index
, fcf_index
);
2636 lpfc_register_fcf(phba
);
2638 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2642 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2643 * @phba: pointer to lpfc hba data structure.
2644 * @mboxq: pointer to mailbox object.
2646 * This is the callback function of read FCF record mailbox command for
2647 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2648 * failover when a new FCF event happened. If the FCF read back is
2649 * valid/available and it passes the connection list check, it updates
2650 * the bmask for the eligible FCF record for roundrobin failover.
2653 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2655 struct fcf_record
*new_fcf_record
;
2656 uint32_t boot_flag
, addr_mode
;
2657 uint16_t fcf_index
, next_fcf_index
;
2661 /* If link state is not up, no need to proceed */
2662 if (phba
->link_state
< LPFC_LINK_UP
)
2665 /* If FCF discovery period is over, no need to proceed */
2666 if (!(phba
->fcf
.fcf_flag
& FCF_DISCOVERY
))
2669 /* Parse the FCF record from the non-embedded mailbox command */
2670 new_fcf_record
= lpfc_sli4_fcf_rec_mbox_parse(phba
, mboxq
,
2672 if (!new_fcf_record
) {
2673 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
2674 "2767 Mailbox command READ_FCF_RECORD "
2675 "failed to retrieve a FCF record.\n");
2679 /* Check the connection list for eligibility */
2680 rc
= lpfc_match_fcf_conn_list(phba
, new_fcf_record
, &boot_flag
,
2681 &addr_mode
, &vlan_id
);
2683 /* Log the FCF record information if turned on */
2684 lpfc_sli4_log_fcf_record_info(phba
, new_fcf_record
, vlan_id
,
2690 /* Update the eligible FCF record index bmask */
2691 fcf_index
= bf_get(lpfc_fcf_record_fcf_index
, new_fcf_record
);
2693 rc
= lpfc_sli4_fcf_pri_list_add(phba
, fcf_index
, new_fcf_record
);
2696 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
2700 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2701 * @phba: pointer to lpfc hba data structure.
2702 * @mboxq: pointer to mailbox data structure.
2704 * This function handles completion of init vfi mailbox command.
2707 lpfc_init_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2709 struct lpfc_vport
*vport
= mboxq
->vport
;
2712 * VFI not supported on interface type 0, just do the flogi
2713 * Also continue if the VFI is in use - just use the same one.
2715 if (mboxq
->u
.mb
.mbxStatus
&&
2716 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2717 LPFC_SLI_INTF_IF_TYPE_0
) &&
2718 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2719 lpfc_printf_vlog(vport
, KERN_ERR
,
2721 "2891 Init VFI mailbox failed 0x%x\n",
2722 mboxq
->u
.mb
.mbxStatus
);
2723 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2724 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2728 lpfc_initial_flogi(vport
);
2729 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2734 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2735 * @vport: pointer to lpfc_vport data structure.
2737 * This function issue a init_vfi mailbox command to initialize the VFI and
2738 * VPI for the physical port.
2741 lpfc_issue_init_vfi(struct lpfc_vport
*vport
)
2743 LPFC_MBOXQ_t
*mboxq
;
2745 struct lpfc_hba
*phba
= vport
->phba
;
2747 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2749 lpfc_printf_vlog(vport
, KERN_ERR
,
2750 LOG_MBOX
, "2892 Failed to allocate "
2751 "init_vfi mailbox\n");
2754 lpfc_init_vfi(mboxq
, vport
);
2755 mboxq
->mbox_cmpl
= lpfc_init_vfi_cmpl
;
2756 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
2757 if (rc
== MBX_NOT_FINISHED
) {
2758 lpfc_printf_vlog(vport
, KERN_ERR
,
2759 LOG_MBOX
, "2893 Failed to issue init_vfi mailbox\n");
2760 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2765 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2766 * @phba: pointer to lpfc hba data structure.
2767 * @mboxq: pointer to mailbox data structure.
2769 * This function handles completion of init vpi mailbox command.
2772 lpfc_init_vpi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2774 struct lpfc_vport
*vport
= mboxq
->vport
;
2775 struct lpfc_nodelist
*ndlp
;
2776 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2778 if (mboxq
->u
.mb
.mbxStatus
) {
2779 lpfc_printf_vlog(vport
, KERN_ERR
,
2781 "2609 Init VPI mailbox failed 0x%x\n",
2782 mboxq
->u
.mb
.mbxStatus
);
2783 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2784 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2787 spin_lock_irq(shost
->host_lock
);
2788 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2789 spin_unlock_irq(shost
->host_lock
);
2791 /* If this port is physical port or FDISC is done, do reg_vpi */
2792 if ((phba
->pport
== vport
) || (vport
->port_state
== LPFC_FDISC
)) {
2793 ndlp
= lpfc_findnode_did(vport
, Fabric_DID
);
2795 lpfc_printf_vlog(vport
, KERN_ERR
,
2797 "2731 Cannot find fabric "
2798 "controller node\n");
2800 lpfc_register_new_vport(phba
, vport
, ndlp
);
2801 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2805 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2806 lpfc_initial_fdisc(vport
);
2808 lpfc_vport_set_state(vport
, FC_VPORT_NO_FABRIC_SUPP
);
2809 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
2810 "2606 No NPIV Fabric support\n");
2812 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2817 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2818 * @vport: pointer to lpfc_vport data structure.
2820 * This function issue a init_vpi mailbox command to initialize
2821 * VPI for the vport.
2824 lpfc_issue_init_vpi(struct lpfc_vport
*vport
)
2826 LPFC_MBOXQ_t
*mboxq
;
2829 if ((vport
->port_type
!= LPFC_PHYSICAL_PORT
) && (!vport
->vpi
)) {
2830 vpi
= lpfc_alloc_vpi(vport
->phba
);
2832 lpfc_printf_vlog(vport
, KERN_ERR
,
2834 "3303 Failed to obtain vport vpi\n");
2835 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2841 mboxq
= mempool_alloc(vport
->phba
->mbox_mem_pool
, GFP_KERNEL
);
2843 lpfc_printf_vlog(vport
, KERN_ERR
,
2844 LOG_MBOX
, "2607 Failed to allocate "
2845 "init_vpi mailbox\n");
2848 lpfc_init_vpi(vport
->phba
, mboxq
, vport
->vpi
);
2849 mboxq
->vport
= vport
;
2850 mboxq
->mbox_cmpl
= lpfc_init_vpi_cmpl
;
2851 rc
= lpfc_sli_issue_mbox(vport
->phba
, mboxq
, MBX_NOWAIT
);
2852 if (rc
== MBX_NOT_FINISHED
) {
2853 lpfc_printf_vlog(vport
, KERN_ERR
,
2854 LOG_MBOX
, "2608 Failed to issue init_vpi mailbox\n");
2855 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
2860 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2861 * @phba: pointer to lpfc hba data structure.
2863 * This function loops through the list of vports on the @phba and issues an
2864 * FDISC if possible.
2867 lpfc_start_fdiscs(struct lpfc_hba
*phba
)
2869 struct lpfc_vport
**vports
;
2872 vports
= lpfc_create_vport_work_array(phba
);
2873 if (vports
!= NULL
) {
2874 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
2875 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
2877 /* There are no vpi for this vport */
2878 if (vports
[i
]->vpi
> phba
->max_vpi
) {
2879 lpfc_vport_set_state(vports
[i
],
2883 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2884 lpfc_vport_set_state(vports
[i
],
2888 if (vports
[i
]->fc_flag
& FC_VPORT_NEEDS_INIT_VPI
) {
2889 lpfc_issue_init_vpi(vports
[i
]);
2892 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
2893 lpfc_initial_fdisc(vports
[i
]);
2895 lpfc_vport_set_state(vports
[i
],
2896 FC_VPORT_NO_FABRIC_SUPP
);
2897 lpfc_printf_vlog(vports
[i
], KERN_ERR
,
2900 "Fabric support\n");
2904 lpfc_destroy_vport_work_array(phba
, vports
);
2908 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
2910 struct lpfc_dmabuf
*dmabuf
= mboxq
->context1
;
2911 struct lpfc_vport
*vport
= mboxq
->vport
;
2912 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2915 * VFI not supported for interface type 0, so ignore any mailbox
2916 * error (except VFI in use) and continue with the discovery.
2918 if (mboxq
->u
.mb
.mbxStatus
&&
2919 (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) !=
2920 LPFC_SLI_INTF_IF_TYPE_0
) &&
2921 mboxq
->u
.mb
.mbxStatus
!= MBX_VFI_IN_USE
) {
2922 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
2923 "2018 REG_VFI mbxStatus error x%x "
2925 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
2926 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
2927 /* FLOGI failed, use loop map to make discovery list */
2928 lpfc_disc_list_loopmap(vport
);
2929 /* Start discovery */
2930 lpfc_disc_start(vport
);
2933 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
2937 /* If the VFI is already registered, there is nothing else to do
2938 * Unless this was a VFI update and we are in PT2PT mode, then
2939 * we should drop through to set the port state to ready.
2941 if (vport
->fc_flag
& FC_VFI_REGISTERED
)
2942 if (!(phba
->sli_rev
== LPFC_SLI_REV4
&&
2943 vport
->fc_flag
& FC_PT2PT
))
2946 /* The VPI is implicitly registered when the VFI is registered */
2947 spin_lock_irq(shost
->host_lock
);
2948 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2949 vport
->fc_flag
|= FC_VFI_REGISTERED
;
2950 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2951 vport
->fc_flag
&= ~FC_VPORT_NEEDS_INIT_VPI
;
2952 spin_unlock_irq(shost
->host_lock
);
2954 /* In case SLI4 FC loopback test, we are ready */
2955 if ((phba
->sli_rev
== LPFC_SLI_REV4
) &&
2956 (phba
->link_flag
& LS_LOOPBACK_MODE
)) {
2957 phba
->link_state
= LPFC_HBA_READY
;
2961 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
2962 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2963 "alpacnt:%d LinkState:%x topology:%x\n",
2964 vport
->port_state
, vport
->fc_flag
, vport
->fc_myDID
,
2965 vport
->phba
->alpa_map
[0],
2966 phba
->link_state
, phba
->fc_topology
);
2968 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
2970 * For private loop or for NPort pt2pt,
2971 * just start discovery and we are done.
2973 if ((vport
->fc_flag
& FC_PT2PT
) ||
2974 ((phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) &&
2975 !(vport
->fc_flag
& FC_PUBLIC_LOOP
))) {
2977 /* Use loop map to make discovery list */
2978 lpfc_disc_list_loopmap(vport
);
2979 /* Start discovery */
2980 if (vport
->fc_flag
& FC_PT2PT
)
2981 vport
->port_state
= LPFC_VPORT_READY
;
2983 lpfc_disc_start(vport
);
2985 lpfc_start_fdiscs(phba
);
2986 lpfc_do_scr_ns_plogi(phba
, vport
);
2991 mempool_free(mboxq
, phba
->mbox_mem_pool
);
2993 lpfc_mbuf_free(phba
, dmabuf
->virt
, dmabuf
->phys
);
3000 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3002 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3003 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
3004 struct lpfc_vport
*vport
= pmb
->vport
;
3005 struct serv_parm
*sp
= &vport
->fc_sparam
;
3008 /* Check for error */
3009 if (mb
->mbxStatus
) {
3010 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3011 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3012 "0319 READ_SPARAM mbxStatus error x%x "
3014 mb
->mbxStatus
, vport
->port_state
);
3015 lpfc_linkdown(phba
);
3019 memcpy((uint8_t *) &vport
->fc_sparam
, (uint8_t *) mp
->virt
,
3020 sizeof (struct serv_parm
));
3022 ed_tov
= be32_to_cpu(sp
->cmn
.e_d_tov
);
3023 if (sp
->cmn
.edtovResolution
) /* E_D_TOV ticks are in nanoseconds */
3024 ed_tov
= (ed_tov
+ 999999) / 1000000;
3026 phba
->fc_edtov
= ed_tov
;
3027 phba
->fc_ratov
= (2 * ed_tov
) / 1000;
3028 if (phba
->fc_ratov
< FF_DEF_RATOV
) {
3029 /* RA_TOV should be atleast 10sec for initial flogi */
3030 phba
->fc_ratov
= FF_DEF_RATOV
;
3033 lpfc_update_vport_wwn(vport
);
3034 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
3035 memcpy(&phba
->wwnn
, &vport
->fc_nodename
, sizeof(phba
->wwnn
));
3036 memcpy(&phba
->wwpn
, &vport
->fc_portname
, sizeof(phba
->wwnn
));
3039 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3041 mempool_free(pmb
, phba
->mbox_mem_pool
);
3045 pmb
->context1
= NULL
;
3046 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3048 lpfc_issue_clear_la(phba
, vport
);
3049 mempool_free(pmb
, phba
->mbox_mem_pool
);
3054 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, struct lpfc_mbx_read_top
*la
)
3056 struct lpfc_vport
*vport
= phba
->pport
;
3057 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
= NULL
;
3058 struct Scsi_Host
*shost
;
3060 struct lpfc_dmabuf
*mp
;
3062 struct fcf_record
*fcf_record
;
3063 uint32_t fc_flags
= 0;
3065 spin_lock_irq(&phba
->hbalock
);
3066 phba
->fc_linkspeed
= bf_get(lpfc_mbx_read_top_link_spd
, la
);
3068 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3069 switch (bf_get(lpfc_mbx_read_top_link_spd
, la
)) {
3070 case LPFC_LINK_SPEED_1GHZ
:
3071 case LPFC_LINK_SPEED_2GHZ
:
3072 case LPFC_LINK_SPEED_4GHZ
:
3073 case LPFC_LINK_SPEED_8GHZ
:
3074 case LPFC_LINK_SPEED_10GHZ
:
3075 case LPFC_LINK_SPEED_16GHZ
:
3076 case LPFC_LINK_SPEED_32GHZ
:
3079 phba
->fc_linkspeed
= LPFC_LINK_SPEED_UNKNOWN
;
3084 if (phba
->fc_topology
&&
3085 phba
->fc_topology
!= bf_get(lpfc_mbx_read_top_topology
, la
)) {
3086 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3087 "3314 Toplogy changed was 0x%x is 0x%x\n",
3089 bf_get(lpfc_mbx_read_top_topology
, la
));
3090 phba
->fc_topology_changed
= 1;
3093 phba
->fc_topology
= bf_get(lpfc_mbx_read_top_topology
, la
);
3094 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
3096 shost
= lpfc_shost_from_vport(vport
);
3097 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3098 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
3100 /* if npiv is enabled and this adapter supports npiv log
3101 * a message that npiv is not supported in this topology
3103 if (phba
->cfg_enable_npiv
&& phba
->max_vpi
)
3104 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3105 "1309 Link Up Event npiv not supported in loop "
3107 /* Get Loop Map information */
3108 if (bf_get(lpfc_mbx_read_top_il
, la
))
3109 fc_flags
|= FC_LBIT
;
3111 vport
->fc_myDID
= bf_get(lpfc_mbx_read_top_alpa_granted
, la
);
3112 i
= la
->lilpBde64
.tus
.f
.bdeSize
;
3115 phba
->alpa_map
[0] = 0;
3117 if (vport
->cfg_log_verbose
& LOG_LINK_EVENT
) {
3128 numalpa
= phba
->alpa_map
[0];
3130 while (j
< numalpa
) {
3131 memset(un
.pamap
, 0, 16);
3132 for (k
= 1; j
< numalpa
; k
++) {
3134 phba
->alpa_map
[j
+ 1];
3139 /* Link Up Event ALPA map */
3140 lpfc_printf_log(phba
,
3143 "1304 Link Up Event "
3144 "ALPA map Data: x%x "
3146 un
.pa
.wd1
, un
.pa
.wd2
,
3147 un
.pa
.wd3
, un
.pa
.wd4
);
3152 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)) {
3153 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
3154 (phba
->sli_rev
>= LPFC_SLI_REV3
))
3155 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3157 vport
->fc_myDID
= phba
->fc_pref_DID
;
3158 fc_flags
|= FC_LBIT
;
3160 spin_unlock_irq(&phba
->hbalock
);
3163 spin_lock_irq(shost
->host_lock
);
3164 vport
->fc_flag
|= fc_flags
;
3165 spin_unlock_irq(shost
->host_lock
);
3169 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3173 rc
= lpfc_read_sparam(phba
, sparam_mbox
, 0);
3175 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3178 sparam_mbox
->vport
= vport
;
3179 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
3180 rc
= lpfc_sli_issue_mbox(phba
, sparam_mbox
, MBX_NOWAIT
);
3181 if (rc
== MBX_NOT_FINISHED
) {
3182 mp
= (struct lpfc_dmabuf
*) sparam_mbox
->context1
;
3183 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3185 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
3189 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
3190 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3193 vport
->port_state
= LPFC_LOCAL_CFG_LINK
;
3194 lpfc_config_link(phba
, cfglink_mbox
);
3195 cfglink_mbox
->vport
= vport
;
3196 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
3197 rc
= lpfc_sli_issue_mbox(phba
, cfglink_mbox
, MBX_NOWAIT
);
3198 if (rc
== MBX_NOT_FINISHED
) {
3199 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
3203 vport
->port_state
= LPFC_VPORT_UNKNOWN
;
3205 * Add the driver's default FCF record at FCF index 0 now. This
3206 * is phase 1 implementation that support FCF index 0 and driver
3209 if (!(phba
->hba_flag
& HBA_FIP_SUPPORT
)) {
3210 fcf_record
= kzalloc(sizeof(struct fcf_record
),
3212 if (unlikely(!fcf_record
)) {
3213 lpfc_printf_log(phba
, KERN_ERR
,
3215 "2554 Could not allocate memory for "
3221 lpfc_sli4_build_dflt_fcf_record(phba
, fcf_record
,
3222 LPFC_FCOE_FCF_DEF_INDEX
);
3223 rc
= lpfc_sli4_add_fcf_record(phba
, fcf_record
);
3225 lpfc_printf_log(phba
, KERN_ERR
,
3227 "2013 Could not manually add FCF "
3228 "record 0, status %d\n", rc
);
3236 * The driver is expected to do FIP/FCF. Call the port
3237 * and get the FCF Table.
3239 spin_lock_irq(&phba
->hbalock
);
3240 if (phba
->hba_flag
& FCF_TS_INPROG
) {
3241 spin_unlock_irq(&phba
->hbalock
);
3244 /* This is the initial FCF discovery scan */
3245 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
3246 spin_unlock_irq(&phba
->hbalock
);
3247 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
| LOG_DISCOVERY
,
3248 "2778 Start FCF table scan at linkup\n");
3249 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
,
3250 LPFC_FCOE_FCF_GET_FIRST
);
3252 spin_lock_irq(&phba
->hbalock
);
3253 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
3254 spin_unlock_irq(&phba
->hbalock
);
3257 /* Reset FCF roundrobin bmask for new discovery */
3258 lpfc_sli4_clear_fcf_rr_bmask(phba
);
3263 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3264 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3265 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3266 vport
->port_state
, sparam_mbox
, cfglink_mbox
);
3267 lpfc_issue_clear_la(phba
, vport
);
3272 lpfc_enable_la(struct lpfc_hba
*phba
)
3275 struct lpfc_sli
*psli
= &phba
->sli
;
3276 spin_lock_irq(&phba
->hbalock
);
3277 psli
->sli_flag
|= LPFC_PROCESS_LA
;
3278 if (phba
->sli_rev
<= LPFC_SLI_REV3
) {
3279 control
= readl(phba
->HCregaddr
);
3280 control
|= HC_LAINT_ENA
;
3281 writel(control
, phba
->HCregaddr
);
3282 readl(phba
->HCregaddr
); /* flush */
3284 spin_unlock_irq(&phba
->hbalock
);
3288 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
)
3290 lpfc_linkdown(phba
);
3291 lpfc_enable_la(phba
);
3292 lpfc_unregister_unused_fcf(phba
);
3293 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3298 * This routine handles processing a READ_TOPOLOGY mailbox
3299 * command upon completion. It is setup in the LPFC_MBOXQ
3300 * as the completion routine when the command is
3301 * handed off to the SLI layer. SLI4 only.
3304 lpfc_mbx_cmpl_read_topology(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3306 struct lpfc_vport
*vport
= pmb
->vport
;
3307 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3308 struct lpfc_mbx_read_top
*la
;
3309 struct lpfc_sli_ring
*pring
;
3310 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3311 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3313 /* Unblock ELS traffic */
3314 pring
= lpfc_phba_elsring(phba
);
3315 pring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
3317 /* Check for error */
3318 if (mb
->mbxStatus
) {
3319 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3320 "1307 READ_LA mbox error x%x state x%x\n",
3321 mb
->mbxStatus
, vport
->port_state
);
3322 lpfc_mbx_issue_link_down(phba
);
3323 phba
->link_state
= LPFC_HBA_ERROR
;
3324 goto lpfc_mbx_cmpl_read_topology_free_mbuf
;
3327 la
= (struct lpfc_mbx_read_top
*) &pmb
->u
.mb
.un
.varReadTop
;
3329 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
3331 spin_lock_irq(shost
->host_lock
);
3332 if (bf_get(lpfc_mbx_read_top_pb
, la
))
3333 vport
->fc_flag
|= FC_BYPASSED_MODE
;
3335 vport
->fc_flag
&= ~FC_BYPASSED_MODE
;
3336 spin_unlock_irq(shost
->host_lock
);
3338 if (phba
->fc_eventTag
<= la
->eventTag
) {
3339 phba
->fc_stat
.LinkMultiEvent
++;
3340 if (bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
)
3341 if (phba
->fc_eventTag
!= 0)
3342 lpfc_linkdown(phba
);
3345 phba
->fc_eventTag
= la
->eventTag
;
3346 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
3347 spin_lock_irq(&phba
->hbalock
);
3348 if (bf_get(lpfc_mbx_read_top_mm
, la
))
3349 phba
->sli
.sli_flag
|= LPFC_MENLO_MAINT
;
3351 phba
->sli
.sli_flag
&= ~LPFC_MENLO_MAINT
;
3352 spin_unlock_irq(&phba
->hbalock
);
3355 phba
->link_events
++;
3356 if ((bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
) &&
3357 !(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
)) {
3358 phba
->fc_stat
.LinkUp
++;
3359 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
3360 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3361 "1306 Link Up Event in loop back mode "
3362 "x%x received Data: x%x x%x x%x x%x\n",
3363 la
->eventTag
, phba
->fc_eventTag
,
3364 bf_get(lpfc_mbx_read_top_alpa_granted
,
3366 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3369 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3370 "1303 Link Up Event x%x received "
3371 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3372 la
->eventTag
, phba
->fc_eventTag
,
3373 bf_get(lpfc_mbx_read_top_alpa_granted
,
3375 bf_get(lpfc_mbx_read_top_link_spd
, la
),
3377 bf_get(lpfc_mbx_read_top_mm
, la
),
3378 bf_get(lpfc_mbx_read_top_fa
, la
),
3379 phba
->wait_4_mlo_maint_flg
);
3381 lpfc_mbx_process_link_up(phba
, la
);
3382 } else if (bf_get(lpfc_mbx_read_top_att_type
, la
) ==
3383 LPFC_ATT_LINK_DOWN
) {
3384 phba
->fc_stat
.LinkDown
++;
3385 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
3386 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3387 "1308 Link Down Event in loop back mode "
3389 "Data: x%x x%x x%x\n",
3390 la
->eventTag
, phba
->fc_eventTag
,
3391 phba
->pport
->port_state
, vport
->fc_flag
);
3393 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3394 "1305 Link Down Event x%x received "
3395 "Data: x%x x%x x%x x%x x%x\n",
3396 la
->eventTag
, phba
->fc_eventTag
,
3397 phba
->pport
->port_state
, vport
->fc_flag
,
3398 bf_get(lpfc_mbx_read_top_mm
, la
),
3399 bf_get(lpfc_mbx_read_top_fa
, la
));
3400 lpfc_mbx_issue_link_down(phba
);
3402 if ((phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) &&
3403 ((bf_get(lpfc_mbx_read_top_att_type
, la
) == LPFC_ATT_LINK_UP
))) {
3404 if (phba
->link_state
!= LPFC_LINK_DOWN
) {
3405 phba
->fc_stat
.LinkDown
++;
3406 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3407 "1312 Link Down Event x%x received "
3408 "Data: x%x x%x x%x\n",
3409 la
->eventTag
, phba
->fc_eventTag
,
3410 phba
->pport
->port_state
, vport
->fc_flag
);
3411 lpfc_mbx_issue_link_down(phba
);
3413 lpfc_enable_la(phba
);
3415 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
3416 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3417 "Data: x%x x%x x%x\n",
3418 la
->eventTag
, phba
->fc_eventTag
,
3419 phba
->pport
->port_state
, vport
->fc_flag
);
3421 * The cmnd that triggered this will be waiting for this
3424 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3425 if (phba
->wait_4_mlo_maint_flg
) {
3426 phba
->wait_4_mlo_maint_flg
= 0;
3427 wake_up_interruptible(&phba
->wait_4_mlo_m_q
);
3431 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
3432 bf_get(lpfc_mbx_read_top_fa
, la
)) {
3433 if (phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
)
3434 lpfc_issue_clear_la(phba
, vport
);
3435 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
3437 bf_get(lpfc_mbx_read_top_fa
, la
));
3440 lpfc_mbx_cmpl_read_topology_free_mbuf
:
3441 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3443 mempool_free(pmb
, phba
->mbox_mem_pool
);
3448 * This routine handles processing a REG_LOGIN mailbox
3449 * command upon completion. It is setup in the LPFC_MBOXQ
3450 * as the completion routine when the command is
3451 * handed off to the SLI layer.
3454 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3456 struct lpfc_vport
*vport
= pmb
->vport
;
3457 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3458 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3459 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3461 pmb
->context1
= NULL
;
3462 pmb
->context2
= NULL
;
3464 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
3465 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3466 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3467 kref_read(&ndlp
->kref
),
3468 ndlp
->nlp_usg_map
, ndlp
);
3469 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
3470 ndlp
->nlp_flag
&= ~NLP_REG_LOGIN_SEND
;
3472 if (ndlp
->nlp_flag
& NLP_IGNR_REG_CMPL
||
3473 ndlp
->nlp_state
!= NLP_STE_REG_LOGIN_ISSUE
) {
3474 /* We rcvd a rscn after issuing this
3475 * mbox reg login, we may have cycled
3476 * back through the state and be
3477 * back at reg login state so this
3478 * mbox needs to be ignored becase
3479 * there is another reg login in
3482 spin_lock_irq(shost
->host_lock
);
3483 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
3484 spin_unlock_irq(shost
->host_lock
);
3487 * We cannot leave the RPI registered because
3488 * if we go thru discovery again for this ndlp
3489 * a subsequent REG_RPI will fail.
3491 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3492 lpfc_unreg_rpi(vport
, ndlp
);
3495 /* Call state machine */
3496 lpfc_disc_state_machine(vport
, ndlp
, pmb
, NLP_EVT_CMPL_REG_LOGIN
);
3498 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3500 mempool_free(pmb
, phba
->mbox_mem_pool
);
3501 /* decrement the node reference count held for this callback
3510 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3512 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3513 struct lpfc_vport
*vport
= pmb
->vport
;
3514 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3516 switch (mb
->mbxStatus
) {
3519 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3520 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3523 /* If VPI is busy, reset the HBA */
3525 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
3526 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3527 vport
->vpi
, mb
->mbxStatus
);
3528 if (!(phba
->pport
->load_flag
& FC_UNLOADING
))
3529 lpfc_workq_post_event(phba
, NULL
, NULL
,
3530 LPFC_EVT_RESET_HBA
);
3532 spin_lock_irq(shost
->host_lock
);
3533 vport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
3534 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
3535 spin_unlock_irq(shost
->host_lock
);
3536 vport
->unreg_vpi_cmpl
= VPORT_OK
;
3537 mempool_free(pmb
, phba
->mbox_mem_pool
);
3538 lpfc_cleanup_vports_rrqs(vport
, NULL
);
3540 * This shost reference might have been taken at the beginning of
3541 * lpfc_vport_delete()
3543 if ((vport
->load_flag
& FC_UNLOADING
) && (vport
!= phba
->pport
))
3544 scsi_host_put(shost
);
3548 lpfc_mbx_unreg_vpi(struct lpfc_vport
*vport
)
3550 struct lpfc_hba
*phba
= vport
->phba
;
3554 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3558 lpfc_unreg_vpi(phba
, vport
->vpi
, mbox
);
3559 mbox
->vport
= vport
;
3560 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_unreg_vpi
;
3561 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
3562 if (rc
== MBX_NOT_FINISHED
) {
3563 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
3564 "1800 Could not issue unreg_vpi\n");
3565 mempool_free(mbox
, phba
->mbox_mem_pool
);
3566 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
3573 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3575 struct lpfc_vport
*vport
= pmb
->vport
;
3576 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3577 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3579 switch (mb
->mbxStatus
) {
3583 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
3584 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3586 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3587 spin_lock_irq(shost
->host_lock
);
3588 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
3589 spin_unlock_irq(shost
->host_lock
);
3590 vport
->fc_myDID
= 0;
3592 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3593 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) {
3594 if (phba
->nvmet_support
)
3595 lpfc_nvmet_update_targetport(phba
);
3597 lpfc_nvme_update_localport(vport
);
3602 spin_lock_irq(shost
->host_lock
);
3603 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
3604 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
3605 spin_unlock_irq(shost
->host_lock
);
3606 vport
->num_disc_nodes
= 0;
3607 /* go thru NPR list and issue ELS PLOGIs */
3608 if (vport
->fc_npr_cnt
)
3609 lpfc_els_disc_plogi(vport
);
3611 if (!vport
->num_disc_nodes
) {
3612 spin_lock_irq(shost
->host_lock
);
3613 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
3614 spin_unlock_irq(shost
->host_lock
);
3615 lpfc_can_disctmo(vport
);
3617 vport
->port_state
= LPFC_VPORT_READY
;
3620 mempool_free(pmb
, phba
->mbox_mem_pool
);
3625 * lpfc_create_static_vport - Read HBA config region to create static vports.
3626 * @phba: pointer to lpfc hba data structure.
3628 * This routine issue a DUMP mailbox command for config region 22 to get
3629 * the list of static vports to be created. The function create vports
3630 * based on the information returned from the HBA.
3633 lpfc_create_static_vport(struct lpfc_hba
*phba
)
3635 LPFC_MBOXQ_t
*pmb
= NULL
;
3637 struct static_vport_info
*vport_info
;
3638 int mbx_wait_rc
= 0, i
;
3639 struct fc_vport_identifiers vport_id
;
3640 struct fc_vport
*new_fc_vport
;
3641 struct Scsi_Host
*shost
;
3642 struct lpfc_vport
*vport
;
3643 uint16_t offset
= 0;
3644 uint8_t *vport_buff
;
3645 struct lpfc_dmabuf
*mp
;
3646 uint32_t byte_count
= 0;
3648 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3650 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3651 "0542 lpfc_create_static_vport failed to"
3652 " allocate mailbox memory\n");
3655 memset(pmb
, 0, sizeof(LPFC_MBOXQ_t
));
3658 vport_info
= kzalloc(sizeof(struct static_vport_info
), GFP_KERNEL
);
3660 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3661 "0543 lpfc_create_static_vport failed to"
3662 " allocate vport_info\n");
3663 mempool_free(pmb
, phba
->mbox_mem_pool
);
3667 vport_buff
= (uint8_t *) vport_info
;
3669 /* free dma buffer from previous round */
3670 if (pmb
->context1
) {
3671 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3672 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3675 if (lpfc_dump_static_vport(phba
, pmb
, offset
))
3678 pmb
->vport
= phba
->pport
;
3679 mbx_wait_rc
= lpfc_sli_issue_mbox_wait(phba
, pmb
,
3682 if ((mbx_wait_rc
!= MBX_SUCCESS
) || mb
->mbxStatus
) {
3683 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3684 "0544 lpfc_create_static_vport failed to"
3685 " issue dump mailbox command ret 0x%x "
3687 mbx_wait_rc
, mb
->mbxStatus
);
3691 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
3692 byte_count
= pmb
->u
.mqe
.un
.mb_words
[5];
3693 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3694 if (byte_count
> sizeof(struct static_vport_info
) -
3696 byte_count
= sizeof(struct static_vport_info
)
3698 memcpy(vport_buff
+ offset
, mp
->virt
, byte_count
);
3699 offset
+= byte_count
;
3701 if (mb
->un
.varDmp
.word_cnt
>
3702 sizeof(struct static_vport_info
) - offset
)
3703 mb
->un
.varDmp
.word_cnt
=
3704 sizeof(struct static_vport_info
)
3706 byte_count
= mb
->un
.varDmp
.word_cnt
;
3707 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
3708 vport_buff
+ offset
,
3711 offset
+= byte_count
;
3714 } while (byte_count
&&
3715 offset
< sizeof(struct static_vport_info
));
3718 if ((le32_to_cpu(vport_info
->signature
) != VPORT_INFO_SIG
) ||
3719 ((le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
)
3720 != VPORT_INFO_REV
)) {
3721 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3722 "0545 lpfc_create_static_vport bad"
3723 " information header 0x%x 0x%x\n",
3724 le32_to_cpu(vport_info
->signature
),
3725 le32_to_cpu(vport_info
->rev
) & VPORT_INFO_REV_MASK
);
3730 shost
= lpfc_shost_from_vport(phba
->pport
);
3732 for (i
= 0; i
< MAX_STATIC_VPORT_COUNT
; i
++) {
3733 memset(&vport_id
, 0, sizeof(vport_id
));
3734 vport_id
.port_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwpn
);
3735 vport_id
.node_name
= wwn_to_u64(vport_info
->vport_list
[i
].wwnn
);
3736 if (!vport_id
.port_name
|| !vport_id
.node_name
)
3739 vport_id
.roles
= FC_PORT_ROLE_FCP_INITIATOR
;
3740 vport_id
.vport_type
= FC_PORTTYPE_NPIV
;
3741 vport_id
.disable
= false;
3742 new_fc_vport
= fc_vport_create(shost
, 0, &vport_id
);
3744 if (!new_fc_vport
) {
3745 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
3746 "0546 lpfc_create_static_vport failed to"
3751 vport
= *(struct lpfc_vport
**)new_fc_vport
->dd_data
;
3752 vport
->vport_flag
|= STATIC_VPORT
;
3757 if (mbx_wait_rc
!= MBX_TIMEOUT
) {
3758 if (pmb
->context1
) {
3759 mp
= (struct lpfc_dmabuf
*)pmb
->context1
;
3760 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3763 mempool_free(pmb
, phba
->mbox_mem_pool
);
3770 * This routine handles processing a Fabric REG_LOGIN mailbox
3771 * command upon completion. It is setup in the LPFC_MBOXQ
3772 * as the completion routine when the command is
3773 * handed off to the SLI layer.
3776 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3778 struct lpfc_vport
*vport
= pmb
->vport
;
3779 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3780 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3781 struct lpfc_nodelist
*ndlp
;
3782 struct Scsi_Host
*shost
;
3784 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3785 pmb
->context1
= NULL
;
3786 pmb
->context2
= NULL
;
3788 if (mb
->mbxStatus
) {
3789 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
3790 "0258 Register Fabric login error: 0x%x\n",
3792 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3794 mempool_free(pmb
, phba
->mbox_mem_pool
);
3796 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3797 /* FLOGI failed, use loop map to make discovery list */
3798 lpfc_disc_list_loopmap(vport
);
3800 /* Start discovery */
3801 lpfc_disc_start(vport
);
3802 /* Decrement the reference count to ndlp after the
3803 * reference to the ndlp are done.
3809 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3810 /* Decrement the reference count to ndlp after the reference
3811 * to the ndlp are done.
3817 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3818 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3819 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3820 ndlp
->nlp_type
|= NLP_FABRIC
;
3821 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3823 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
3824 /* when physical port receive logo donot start
3825 * vport discovery */
3826 if (!(vport
->fc_flag
& FC_LOGO_RCVD_DID_CHNG
))
3827 lpfc_start_fdiscs(phba
);
3829 shost
= lpfc_shost_from_vport(vport
);
3830 spin_lock_irq(shost
->host_lock
);
3831 vport
->fc_flag
&= ~FC_LOGO_RCVD_DID_CHNG
;
3832 spin_unlock_irq(shost
->host_lock
);
3834 lpfc_do_scr_ns_plogi(phba
, vport
);
3837 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3839 mempool_free(pmb
, phba
->mbox_mem_pool
);
3841 /* Drop the reference count from the mbox at the end after
3842 * all the current reference to the ndlp have been done.
3849 * This routine will issue a GID_FT for each FC4 Type supported
3850 * by the driver. ALL GID_FTs must complete before discovery is started.
3853 lpfc_issue_gidft(struct lpfc_vport
*vport
)
3855 struct lpfc_hba
*phba
= vport
->phba
;
3857 /* Good status, issue CT Request to NameServer */
3858 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3859 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_FCP
)) {
3860 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, SLI_CTPT_FCP
)) {
3861 /* Cannot issue NameServer FCP Query, so finish up
3864 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
3865 "0604 %s FC TYPE %x %s\n",
3866 "Failed to issue GID_FT to ",
3868 "Finishing discovery.");
3874 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3875 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) {
3876 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, SLI_CTPT_NVME
)) {
3877 /* Cannot issue NameServer NVME Query, so finish up
3880 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
3881 "0605 %s FC_TYPE %x %s %d\n",
3882 "Failed to issue GID_FT to ",
3884 "Finishing discovery: gidftinp ",
3886 if (vport
->gidft_inp
== 0)
3891 return vport
->gidft_inp
;
3895 * This routine handles processing a NameServer REG_LOGIN mailbox
3896 * command upon completion. It is setup in the LPFC_MBOXQ
3897 * as the completion routine when the command is
3898 * handed off to the SLI layer.
3901 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3903 MAILBOX_t
*mb
= &pmb
->u
.mb
;
3904 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3905 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3906 struct lpfc_vport
*vport
= pmb
->vport
;
3908 pmb
->context1
= NULL
;
3909 pmb
->context2
= NULL
;
3910 vport
->gidft_inp
= 0;
3912 if (mb
->mbxStatus
) {
3913 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
3914 "0260 Register NameServer error: 0x%x\n",
3918 /* decrement the node reference count held for this
3919 * callback function.
3922 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3924 mempool_free(pmb
, phba
->mbox_mem_pool
);
3926 /* If no other thread is using the ndlp, free it */
3927 lpfc_nlp_not_used(ndlp
);
3929 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
3931 * RegLogin failed, use loop map to make discovery
3934 lpfc_disc_list_loopmap(vport
);
3936 /* Start discovery */
3937 lpfc_disc_start(vport
);
3940 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
3944 if (phba
->sli_rev
< LPFC_SLI_REV4
)
3945 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3946 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
3947 ndlp
->nlp_type
|= NLP_FABRIC
;
3948 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3949 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
3950 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
3951 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3952 kref_read(&ndlp
->kref
),
3953 ndlp
->nlp_usg_map
, ndlp
);
3955 if (vport
->port_state
< LPFC_VPORT_READY
) {
3956 /* Link up discovery requires Fabric registration. */
3957 lpfc_ns_cmd(vport
, SLI_CTNS_RNN_ID
, 0, 0);
3958 lpfc_ns_cmd(vport
, SLI_CTNS_RSNN_NN
, 0, 0);
3959 lpfc_ns_cmd(vport
, SLI_CTNS_RSPN_ID
, 0, 0);
3960 lpfc_ns_cmd(vport
, SLI_CTNS_RFT_ID
, 0, 0);
3962 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3963 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_FCP
))
3964 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0, FC_TYPE_FCP
);
3966 if ((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
3967 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
))
3968 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0,
3971 /* Issue SCR just before NameServer GID_FT Query */
3972 lpfc_issue_els_scr(vport
, SCR_DID
, 0);
3975 vport
->fc_ns_retry
= 0;
3976 if (lpfc_issue_gidft(vport
) == 0)
3980 * At this point in time we may need to wait for multiple
3981 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
3983 * decrement the node reference count held for this
3984 * callback function.
3987 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3989 mempool_free(pmb
, phba
->mbox_mem_pool
);
3995 lpfc_register_remote_port(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
3997 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3998 struct fc_rport
*rport
;
3999 struct lpfc_rport_data
*rdata
;
4000 struct fc_rport_identifiers rport_ids
;
4001 struct lpfc_hba
*phba
= vport
->phba
;
4003 if (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)
4006 /* Remote port has reappeared. Re-register w/ FC transport */
4007 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
4008 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
4009 rport_ids
.port_id
= ndlp
->nlp_DID
;
4010 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
4013 * We leave our node pointer in rport->dd_data when we unregister a
4014 * FCP target port. But fc_remote_port_add zeros the space to which
4015 * rport->dd_data points. So, if we're reusing a previously
4016 * registered port, drop the reference that we took the last time we
4017 * registered the port.
4019 rport
= ndlp
->rport
;
4021 rdata
= rport
->dd_data
;
4022 /* break the link before dropping the ref */
4025 if (rdata
->pnode
== ndlp
)
4027 rdata
->pnode
= NULL
;
4029 /* drop reference for earlier registeration */
4030 put_device(&rport
->dev
);
4033 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
4034 "rport add: did:x%x flg:x%x type x%x",
4035 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
4037 /* Don't add the remote port if unloading. */
4038 if (vport
->load_flag
& FC_UNLOADING
)
4041 ndlp
->rport
= rport
= fc_remote_port_add(shost
, 0, &rport_ids
);
4042 if (!rport
|| !get_device(&rport
->dev
)) {
4043 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
4044 "Warning: fc_remote_port_add failed\n");
4048 /* initialize static port data */
4049 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
4050 rport
->supported_classes
= ndlp
->nlp_class_sup
;
4051 rdata
= rport
->dd_data
;
4052 rdata
->pnode
= lpfc_nlp_get(ndlp
);
4054 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
4055 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
4056 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
4057 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
4059 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
4060 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
4062 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
4063 "3183 rport register x%06x, rport %p role x%x\n",
4064 ndlp
->nlp_DID
, rport
, rport_ids
.roles
);
4066 if ((rport
->scsi_target_id
!= -1) &&
4067 (rport
->scsi_target_id
< LPFC_MAX_TARGET
)) {
4068 ndlp
->nlp_sid
= rport
->scsi_target_id
;
4074 lpfc_unregister_remote_port(struct lpfc_nodelist
*ndlp
)
4076 struct fc_rport
*rport
= ndlp
->rport
;
4077 struct lpfc_vport
*vport
= ndlp
->vport
;
4078 struct lpfc_hba
*phba
= vport
->phba
;
4080 if (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)
4083 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
4084 "rport delete: did:x%x flg:x%x type x%x",
4085 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
4087 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4088 "3184 rport unregister x%06x, rport %p\n",
4089 ndlp
->nlp_DID
, rport
);
4091 fc_remote_port_delete(rport
);
4097 lpfc_nlp_counters(struct lpfc_vport
*vport
, int state
, int count
)
4099 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4101 spin_lock_irq(shost
->host_lock
);
4103 case NLP_STE_UNUSED_NODE
:
4104 vport
->fc_unused_cnt
+= count
;
4106 case NLP_STE_PLOGI_ISSUE
:
4107 vport
->fc_plogi_cnt
+= count
;
4109 case NLP_STE_ADISC_ISSUE
:
4110 vport
->fc_adisc_cnt
+= count
;
4112 case NLP_STE_REG_LOGIN_ISSUE
:
4113 vport
->fc_reglogin_cnt
+= count
;
4115 case NLP_STE_PRLI_ISSUE
:
4116 vport
->fc_prli_cnt
+= count
;
4118 case NLP_STE_UNMAPPED_NODE
:
4119 vport
->fc_unmap_cnt
+= count
;
4121 case NLP_STE_MAPPED_NODE
:
4122 vport
->fc_map_cnt
+= count
;
4124 case NLP_STE_NPR_NODE
:
4125 if (vport
->fc_npr_cnt
== 0 && count
== -1)
4126 vport
->fc_npr_cnt
= 0;
4128 vport
->fc_npr_cnt
+= count
;
4131 spin_unlock_irq(shost
->host_lock
);
4135 lpfc_nlp_state_cleanup(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4136 int old_state
, int new_state
)
4138 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4139 struct lpfc_hba
*phba
= vport
->phba
;
4141 if (new_state
== NLP_STE_UNMAPPED_NODE
) {
4142 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
4143 ndlp
->nlp_type
|= NLP_FC_NODE
;
4145 if (new_state
== NLP_STE_MAPPED_NODE
)
4146 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
4147 if (new_state
== NLP_STE_NPR_NODE
)
4148 ndlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
4150 /* FCP and NVME Transport interface */
4151 if ((old_state
== NLP_STE_MAPPED_NODE
||
4152 old_state
== NLP_STE_UNMAPPED_NODE
)) {
4154 vport
->phba
->nport_event_cnt
++;
4155 lpfc_unregister_remote_port(ndlp
);
4158 /* Notify the NVME transport of this rport's loss */
4159 if (((phba
->cfg_enable_fc4_type
== LPFC_ENABLE_BOTH
) ||
4160 (phba
->cfg_enable_fc4_type
== LPFC_ENABLE_NVME
)) &&
4161 (vport
->phba
->nvmet_support
== 0) &&
4162 ((ndlp
->nlp_fc4_type
& NLP_FC4_NVME
) ||
4163 (ndlp
->nlp_DID
== Fabric_DID
))) {
4164 vport
->phba
->nport_event_cnt
++;
4165 lpfc_nvme_unregister_port(vport
, ndlp
);
4169 /* FCP and NVME Transport interfaces */
4171 if (new_state
== NLP_STE_MAPPED_NODE
||
4172 new_state
== NLP_STE_UNMAPPED_NODE
) {
4173 if ((ndlp
->nlp_fc4_type
& NLP_FC4_FCP
) ||
4174 (ndlp
->nlp_DID
== Fabric_DID
)) {
4175 vport
->phba
->nport_event_cnt
++;
4177 * Tell the fc transport about the port, if we haven't
4178 * already. If we have, and it's a scsi entity, be
4180 lpfc_register_remote_port(vport
, ndlp
);
4182 /* Notify the NVME transport of this new rport. */
4183 if (ndlp
->nlp_fc4_type
& NLP_FC4_NVME
) {
4184 if (vport
->phba
->nvmet_support
== 0) {
4185 /* Register this rport with the transport.
4186 * Initiators take the NDLP ref count in
4189 vport
->phba
->nport_event_cnt
++;
4190 lpfc_nvme_register_port(vport
, ndlp
);
4192 /* Just take an NDLP ref count since the
4193 * target does not register rports.
4200 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
4201 (vport
->stat_data_enabled
)) {
4203 * A new target is discovered, if there is no buffer for
4204 * statistical data collection allocate buffer.
4206 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
4207 sizeof(struct lpfc_scsicmd_bkt
),
4210 if (!ndlp
->lat_data
)
4211 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
4212 "0286 lpfc_nlp_state_cleanup failed to "
4213 "allocate statistical data buffer DID "
4214 "0x%x\n", ndlp
->nlp_DID
);
4217 * If the node just added to Mapped list was an FCP target,
4218 * but the remote port registration failed or assigned a target
4219 * id outside the presentable range - move the node to the
4222 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
4223 (ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4225 ndlp
->rport
->scsi_target_id
== -1 ||
4226 ndlp
->rport
->scsi_target_id
>= LPFC_MAX_TARGET
)) {
4227 spin_lock_irq(shost
->host_lock
);
4228 ndlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
4229 spin_unlock_irq(shost
->host_lock
);
4230 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
4235 lpfc_nlp_state_name(char *buffer
, size_t size
, int state
)
4237 static char *states
[] = {
4238 [NLP_STE_UNUSED_NODE
] = "UNUSED",
4239 [NLP_STE_PLOGI_ISSUE
] = "PLOGI",
4240 [NLP_STE_ADISC_ISSUE
] = "ADISC",
4241 [NLP_STE_REG_LOGIN_ISSUE
] = "REGLOGIN",
4242 [NLP_STE_PRLI_ISSUE
] = "PRLI",
4243 [NLP_STE_LOGO_ISSUE
] = "LOGO",
4244 [NLP_STE_UNMAPPED_NODE
] = "UNMAPPED",
4245 [NLP_STE_MAPPED_NODE
] = "MAPPED",
4246 [NLP_STE_NPR_NODE
] = "NPR",
4249 if (state
< NLP_STE_MAX_STATE
&& states
[state
])
4250 strlcpy(buffer
, states
[state
], size
);
4252 snprintf(buffer
, size
, "unknown (%d)", state
);
4257 lpfc_nlp_set_state(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4260 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4261 int old_state
= ndlp
->nlp_state
;
4262 char name1
[16], name2
[16];
4264 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4265 "0904 NPort state transition x%06x, %s -> %s\n",
4267 lpfc_nlp_state_name(name1
, sizeof(name1
), old_state
),
4268 lpfc_nlp_state_name(name2
, sizeof(name2
), state
));
4270 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4271 "node statechg did:x%x old:%d ste:%d",
4272 ndlp
->nlp_DID
, old_state
, state
);
4274 if (old_state
== NLP_STE_NPR_NODE
&&
4275 state
!= NLP_STE_NPR_NODE
)
4276 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4277 if (old_state
== NLP_STE_UNMAPPED_NODE
) {
4278 ndlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
4279 ndlp
->nlp_type
&= ~NLP_FC_NODE
;
4282 if (list_empty(&ndlp
->nlp_listp
)) {
4283 spin_lock_irq(shost
->host_lock
);
4284 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4285 spin_unlock_irq(shost
->host_lock
);
4286 } else if (old_state
)
4287 lpfc_nlp_counters(vport
, old_state
, -1);
4289 ndlp
->nlp_state
= state
;
4290 lpfc_nlp_counters(vport
, state
, 1);
4291 lpfc_nlp_state_cleanup(vport
, ndlp
, old_state
, state
);
4295 lpfc_enqueue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4297 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4299 if (list_empty(&ndlp
->nlp_listp
)) {
4300 spin_lock_irq(shost
->host_lock
);
4301 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
4302 spin_unlock_irq(shost
->host_lock
);
4307 lpfc_dequeue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4309 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4311 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4312 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4313 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4314 spin_lock_irq(shost
->host_lock
);
4315 list_del_init(&ndlp
->nlp_listp
);
4316 spin_unlock_irq(shost
->host_lock
);
4317 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4318 NLP_STE_UNUSED_NODE
);
4322 lpfc_disable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4324 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4325 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
4326 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
4327 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
4328 NLP_STE_UNUSED_NODE
);
4331 * lpfc_initialize_node - Initialize all fields of node object
4332 * @vport: Pointer to Virtual Port object.
4333 * @ndlp: Pointer to FC node object.
4334 * @did: FC_ID of the node.
4336 * This function is always called when node object need to be initialized.
4337 * It initializes all the fields of the node object. Although the reference
4338 * to phba from @ndlp can be obtained indirectly through it's reference to
4339 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4340 * to the life-span of the @ndlp might go beyond the existence of @vport as
4341 * the final release of ndlp is determined by its reference count. And, the
4342 * operation on @ndlp needs the reference to phba.
4345 lpfc_initialize_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4348 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
4349 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
4350 setup_timer(&ndlp
->nlp_delayfunc
, lpfc_els_retry_delay
,
4351 (unsigned long)ndlp
);
4352 ndlp
->nlp_DID
= did
;
4353 ndlp
->vport
= vport
;
4354 ndlp
->phba
= vport
->phba
;
4355 ndlp
->nlp_sid
= NLP_NO_SID
;
4356 ndlp
->nlp_fc4_type
= NLP_FC4_NONE
;
4357 kref_init(&ndlp
->kref
);
4358 NLP_INT_NODE_ACT(ndlp
);
4359 atomic_set(&ndlp
->cmd_pending
, 0);
4360 ndlp
->cmd_qdepth
= vport
->cfg_tgt_queue_depth
;
4363 struct lpfc_nodelist
*
4364 lpfc_enable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
4367 struct lpfc_hba
*phba
= vport
->phba
;
4369 unsigned long flags
;
4370 unsigned long *active_rrqs_xri_bitmap
= NULL
;
4375 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
4376 /* The ndlp should not be in memory free mode */
4377 if (NLP_CHK_FREE_REQ(ndlp
)) {
4378 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4379 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4380 "0277 lpfc_enable_node: ndlp:x%p "
4381 "usgmap:x%x refcnt:%d\n",
4382 (void *)ndlp
, ndlp
->nlp_usg_map
,
4383 kref_read(&ndlp
->kref
));
4386 /* The ndlp should not already be in active mode */
4387 if (NLP_CHK_NODE_ACT(ndlp
)) {
4388 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4389 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4390 "0278 lpfc_enable_node: ndlp:x%p "
4391 "usgmap:x%x refcnt:%d\n",
4392 (void *)ndlp
, ndlp
->nlp_usg_map
,
4393 kref_read(&ndlp
->kref
));
4397 /* Keep the original DID */
4398 did
= ndlp
->nlp_DID
;
4399 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4400 active_rrqs_xri_bitmap
= ndlp
->active_rrqs_xri_bitmap
;
4402 /* re-initialize ndlp except of ndlp linked list pointer */
4403 memset((((char *)ndlp
) + sizeof (struct list_head
)), 0,
4404 sizeof (struct lpfc_nodelist
) - sizeof (struct list_head
));
4405 lpfc_initialize_node(vport
, ndlp
, did
);
4407 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4408 ndlp
->active_rrqs_xri_bitmap
= active_rrqs_xri_bitmap
;
4410 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
4411 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
4412 ndlp
->nlp_rpi
= lpfc_sli4_alloc_rpi(vport
->phba
);
4413 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4414 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4415 "map:%x %p\n", ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
4417 kref_read(&ndlp
->kref
),
4418 ndlp
->nlp_usg_map
, ndlp
);
4422 if (state
!= NLP_STE_UNUSED_NODE
)
4423 lpfc_nlp_set_state(vport
, ndlp
, state
);
4425 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
4426 "node enable: did:x%x",
4427 ndlp
->nlp_DID
, 0, 0);
4432 lpfc_drop_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4435 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4436 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4437 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4438 * until ALL other outstanding threads have completed. We check
4439 * that the ndlp not already in the UNUSED state before we proceed.
4441 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
4443 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
4444 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
4445 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4446 lpfc_unreg_rpi(vport
, ndlp
);
4454 * Start / ReStart rescue timer for Discovery / RSCN handling
4457 lpfc_set_disctmo(struct lpfc_vport
*vport
)
4459 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4460 struct lpfc_hba
*phba
= vport
->phba
;
4463 if (vport
->port_state
== LPFC_LOCAL_CFG_LINK
) {
4464 /* For FAN, timeout should be greater than edtov */
4465 tmo
= (((phba
->fc_edtov
+ 999) / 1000) + 1);
4467 /* Normal discovery timeout should be > than ELS/CT timeout
4468 * FC spec states we need 3 * ratov for CT requests
4470 tmo
= ((phba
->fc_ratov
* 3) + 3);
4474 if (!timer_pending(&vport
->fc_disctmo
)) {
4475 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4476 "set disc timer: tmo:x%x state:x%x flg:x%x",
4477 tmo
, vport
->port_state
, vport
->fc_flag
);
4480 mod_timer(&vport
->fc_disctmo
, jiffies
+ msecs_to_jiffies(1000 * tmo
));
4481 spin_lock_irq(shost
->host_lock
);
4482 vport
->fc_flag
|= FC_DISC_TMO
;
4483 spin_unlock_irq(shost
->host_lock
);
4485 /* Start Discovery Timer state <hba_state> */
4486 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4487 "0247 Start Discovery Timer state x%x "
4488 "Data: x%x x%lx x%x x%x\n",
4489 vport
->port_state
, tmo
,
4490 (unsigned long)&vport
->fc_disctmo
, vport
->fc_plogi_cnt
,
4491 vport
->fc_adisc_cnt
);
4497 * Cancel rescue timer for Discovery / RSCN handling
4500 lpfc_can_disctmo(struct lpfc_vport
*vport
)
4502 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4503 unsigned long iflags
;
4505 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
4506 "can disc timer: state:x%x rtry:x%x flg:x%x",
4507 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
4509 /* Turn off discovery timer if its running */
4510 if (vport
->fc_flag
& FC_DISC_TMO
) {
4511 spin_lock_irqsave(shost
->host_lock
, iflags
);
4512 vport
->fc_flag
&= ~FC_DISC_TMO
;
4513 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
4514 del_timer_sync(&vport
->fc_disctmo
);
4515 spin_lock_irqsave(&vport
->work_port_lock
, iflags
);
4516 vport
->work_port_events
&= ~WORKER_DISC_TMO
;
4517 spin_unlock_irqrestore(&vport
->work_port_lock
, iflags
);
4520 /* Cancel Discovery Timer state <hba_state> */
4521 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
4522 "0248 Cancel Discovery Timer state x%x "
4523 "Data: x%x x%x x%x\n",
4524 vport
->port_state
, vport
->fc_flag
,
4525 vport
->fc_plogi_cnt
, vport
->fc_adisc_cnt
);
4530 * Check specified ring for outstanding IOCB on the SLI queue
4531 * Return true if iocb matches the specified nport
4534 lpfc_check_sli_ndlp(struct lpfc_hba
*phba
,
4535 struct lpfc_sli_ring
*pring
,
4536 struct lpfc_iocbq
*iocb
,
4537 struct lpfc_nodelist
*ndlp
)
4539 IOCB_t
*icmd
= &iocb
->iocb
;
4540 struct lpfc_vport
*vport
= ndlp
->vport
;
4542 if (iocb
->vport
!= vport
)
4545 if (pring
->ringno
== LPFC_ELS_RING
) {
4546 switch (icmd
->ulpCommand
) {
4547 case CMD_GEN_REQUEST64_CR
:
4548 if (iocb
->context_un
.ndlp
== ndlp
)
4550 case CMD_ELS_REQUEST64_CR
:
4551 if (icmd
->un
.elsreq64
.remoteID
== ndlp
->nlp_DID
)
4553 case CMD_XMIT_ELS_RSP64_CX
:
4554 if (iocb
->context1
== (uint8_t *) ndlp
)
4557 } else if (pring
->ringno
== LPFC_FCP_RING
) {
4558 /* Skip match check if waiting to relogin to FCP target */
4559 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
4560 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
4563 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
4571 __lpfc_dequeue_nport_iocbs(struct lpfc_hba
*phba
,
4572 struct lpfc_nodelist
*ndlp
, struct lpfc_sli_ring
*pring
,
4573 struct list_head
*dequeue_list
)
4575 struct lpfc_iocbq
*iocb
, *next_iocb
;
4577 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
4578 /* Check to see if iocb matches the nport */
4579 if (lpfc_check_sli_ndlp(phba
, pring
, iocb
, ndlp
))
4580 /* match, dequeue */
4581 list_move_tail(&iocb
->list
, dequeue_list
);
4586 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba
*phba
,
4587 struct lpfc_nodelist
*ndlp
, struct list_head
*dequeue_list
)
4589 struct lpfc_sli
*psli
= &phba
->sli
;
4592 spin_lock_irq(&phba
->hbalock
);
4593 for (i
= 0; i
< psli
->num_rings
; i
++)
4594 __lpfc_dequeue_nport_iocbs(phba
, ndlp
, &psli
->sli3_ring
[i
],
4596 spin_unlock_irq(&phba
->hbalock
);
4600 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba
*phba
,
4601 struct lpfc_nodelist
*ndlp
, struct list_head
*dequeue_list
)
4603 struct lpfc_sli_ring
*pring
;
4604 struct lpfc_queue
*qp
= NULL
;
4606 spin_lock_irq(&phba
->hbalock
);
4607 list_for_each_entry(qp
, &phba
->sli4_hba
.lpfc_wq_list
, wq_list
) {
4611 spin_lock(&pring
->ring_lock
);
4612 __lpfc_dequeue_nport_iocbs(phba
, ndlp
, pring
, dequeue_list
);
4613 spin_unlock(&pring
->ring_lock
);
4615 spin_unlock_irq(&phba
->hbalock
);
4619 * Free resources / clean up outstanding I/Os
4620 * associated with nlp_rpi in the LPFC_NODELIST entry.
4623 lpfc_no_rpi(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
4625 LIST_HEAD(completions
);
4627 lpfc_fabric_abort_nport(ndlp
);
4630 * Everything that matches on txcmplq will be returned
4631 * by firmware with a no rpi error.
4633 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4634 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
4635 lpfc_sli3_dequeue_nport_iocbs(phba
, ndlp
, &completions
);
4637 lpfc_sli4_dequeue_nport_iocbs(phba
, ndlp
, &completions
);
4640 /* Cancel all the IOCBs from the completions list */
4641 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
4648 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4649 * @phba: Pointer to HBA context object.
4650 * @pmb: Pointer to mailbox object.
4652 * This function will issue an ELS LOGO command after completing
4656 lpfc_nlp_logo_unreg(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
4658 struct lpfc_vport
*vport
= pmb
->vport
;
4659 struct lpfc_nodelist
*ndlp
;
4661 ndlp
= (struct lpfc_nodelist
*)(pmb
->context1
);
4664 lpfc_issue_els_logo(vport
, ndlp
, 0);
4665 mempool_free(pmb
, phba
->mbox_mem_pool
);
4669 * Free rpi associated with LPFC_NODELIST entry.
4670 * This routine is called from lpfc_freenode(), when we are removing
4671 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4672 * LOGO that completes successfully, and we are waiting to PLOGI back
4673 * to the remote NPort. In addition, it is called after we receive
4674 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4675 * we are waiting to PLOGI back to the remote NPort.
4678 lpfc_unreg_rpi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4680 struct lpfc_hba
*phba
= vport
->phba
;
4682 int rc
, acc_plogi
= 1;
4685 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
||
4686 ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) {
4687 if (ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
)
4688 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
4689 "3366 RPI x%x needs to be "
4690 "unregistered nlp_flag x%x "
4692 ndlp
->nlp_rpi
, ndlp
->nlp_flag
,
4694 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4696 /* SLI4 ports require the physical rpi value. */
4697 rpi
= ndlp
->nlp_rpi
;
4698 if (phba
->sli_rev
== LPFC_SLI_REV4
)
4699 rpi
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
4701 lpfc_unreg_login(phba
, vport
->vpi
, rpi
, mbox
);
4702 mbox
->vport
= vport
;
4703 if (ndlp
->nlp_flag
& NLP_ISSUE_LOGO
) {
4704 mbox
->context1
= ndlp
;
4705 mbox
->mbox_cmpl
= lpfc_nlp_logo_unreg
;
4707 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
4708 (!(vport
->load_flag
& FC_UNLOADING
)) &&
4709 (bf_get(lpfc_sli_intf_if_type
,
4710 &phba
->sli4_hba
.sli_intf
) ==
4711 LPFC_SLI_INTF_IF_TYPE_2
) &&
4712 (kref_read(&ndlp
->kref
) > 0)) {
4713 mbox
->context1
= lpfc_nlp_get(ndlp
);
4715 lpfc_sli4_unreg_rpi_cmpl_clr
;
4717 * accept PLOGIs after unreg_rpi_cmpl
4722 lpfc_sli_def_mbox_cmpl
;
4725 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4726 if (rc
== MBX_NOT_FINISHED
) {
4727 mempool_free(mbox
, phba
->mbox_mem_pool
);
4731 lpfc_no_rpi(phba
, ndlp
);
4733 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
4735 ndlp
->nlp_flag
&= ~NLP_RPI_REGISTERED
;
4736 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
4738 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4741 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
4746 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4747 * @phba: pointer to lpfc hba data structure.
4749 * This routine is invoked to unregister all the currently registered RPIs
4753 lpfc_unreg_hba_rpis(struct lpfc_hba
*phba
)
4755 struct lpfc_vport
**vports
;
4756 struct lpfc_nodelist
*ndlp
;
4757 struct Scsi_Host
*shost
;
4760 vports
= lpfc_create_vport_work_array(phba
);
4762 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
4763 "2884 Vport array allocation failed \n");
4766 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
4767 shost
= lpfc_shost_from_vport(vports
[i
]);
4768 spin_lock_irq(shost
->host_lock
);
4769 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
4770 if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
4771 /* The mempool_alloc might sleep */
4772 spin_unlock_irq(shost
->host_lock
);
4773 lpfc_unreg_rpi(vports
[i
], ndlp
);
4774 spin_lock_irq(shost
->host_lock
);
4777 spin_unlock_irq(shost
->host_lock
);
4779 lpfc_destroy_vport_work_array(phba
, vports
);
4783 lpfc_unreg_all_rpis(struct lpfc_vport
*vport
)
4785 struct lpfc_hba
*phba
= vport
->phba
;
4789 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
4790 lpfc_sli4_unreg_all_rpis(vport
);
4794 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4796 lpfc_unreg_login(phba
, vport
->vpi
, LPFC_UNREG_ALL_RPIS_VPORT
,
4798 mbox
->vport
= vport
;
4799 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4800 mbox
->context1
= NULL
;
4801 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4802 if (rc
!= MBX_TIMEOUT
)
4803 mempool_free(mbox
, phba
->mbox_mem_pool
);
4805 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4806 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4807 "1836 Could not issue "
4808 "unreg_login(all_rpis) status %d\n", rc
);
4813 lpfc_unreg_default_rpis(struct lpfc_vport
*vport
)
4815 struct lpfc_hba
*phba
= vport
->phba
;
4819 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4821 lpfc_unreg_did(phba
, vport
->vpi
, LPFC_UNREG_ALL_DFLT_RPIS
,
4823 mbox
->vport
= vport
;
4824 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4825 mbox
->context1
= NULL
;
4826 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
4827 if (rc
!= MBX_TIMEOUT
)
4828 mempool_free(mbox
, phba
->mbox_mem_pool
);
4830 if ((rc
== MBX_TIMEOUT
) || (rc
== MBX_NOT_FINISHED
))
4831 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
4832 "1815 Could not issue "
4833 "unreg_did (default rpis) status %d\n",
4839 * Free resources associated with LPFC_NODELIST entry
4840 * so it can be freed.
4843 lpfc_cleanup_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4845 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
4846 struct lpfc_hba
*phba
= vport
->phba
;
4847 LPFC_MBOXQ_t
*mb
, *nextmb
;
4848 struct lpfc_dmabuf
*mp
;
4850 /* Cleanup node for NPort <nlp_DID> */
4851 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4852 "0900 Cleanup node for NPort x%x "
4853 "Data: x%x x%x x%x\n",
4854 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
4855 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
4856 if (NLP_CHK_FREE_REQ(ndlp
)) {
4857 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4858 "0280 lpfc_cleanup_node: ndlp:x%p "
4859 "usgmap:x%x refcnt:%d\n",
4860 (void *)ndlp
, ndlp
->nlp_usg_map
,
4861 kref_read(&ndlp
->kref
));
4862 lpfc_dequeue_node(vport
, ndlp
);
4864 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4865 "0281 lpfc_cleanup_node: ndlp:x%p "
4866 "usgmap:x%x refcnt:%d\n",
4867 (void *)ndlp
, ndlp
->nlp_usg_map
,
4868 kref_read(&ndlp
->kref
));
4869 lpfc_disable_node(vport
, ndlp
);
4873 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4875 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4876 if ((mb
= phba
->sli
.mbox_active
)) {
4877 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4878 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4879 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4880 mb
->context2
= NULL
;
4881 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4885 spin_lock_irq(&phba
->hbalock
);
4886 /* Cleanup REG_LOGIN completions which are not yet processed */
4887 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
4888 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) ||
4889 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) ||
4890 (ndlp
!= (struct lpfc_nodelist
*) mb
->context2
))
4893 mb
->context2
= NULL
;
4894 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4897 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
4898 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
4899 !(mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) &&
4900 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
4901 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
4903 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4906 list_del(&mb
->list
);
4907 mempool_free(mb
, phba
->mbox_mem_pool
);
4908 /* We shall not invoke the lpfc_nlp_put to decrement
4909 * the ndlp reference count as we are in the process
4910 * of lpfc_nlp_release.
4914 spin_unlock_irq(&phba
->hbalock
);
4916 lpfc_els_abort(phba
, ndlp
);
4918 spin_lock_irq(shost
->host_lock
);
4919 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
4920 spin_unlock_irq(shost
->host_lock
);
4922 ndlp
->nlp_last_elscmd
= 0;
4923 del_timer_sync(&ndlp
->nlp_delayfunc
);
4925 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
4926 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
4927 lpfc_cleanup_vports_rrqs(vport
, ndlp
);
4928 lpfc_unreg_rpi(vport
, ndlp
);
4934 * Check to see if we can free the nlp back to the freelist.
4935 * If we are in the middle of using the nlp in the discovery state
4936 * machine, defer the free till we reach the end of the state machine.
4939 lpfc_nlp_remove(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
4941 struct lpfc_hba
*phba
= vport
->phba
;
4942 struct lpfc_rport_data
*rdata
;
4943 struct fc_rport
*rport
;
4947 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
4948 if ((ndlp
->nlp_flag
& NLP_DEFER_RM
) &&
4949 !(ndlp
->nlp_flag
& NLP_REG_LOGIN_SEND
) &&
4950 !(ndlp
->nlp_flag
& NLP_RPI_REGISTERED
)) {
4951 /* For this case we need to cleanup the default rpi
4952 * allocated by the firmware.
4954 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
4955 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
4956 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
4957 kref_read(&ndlp
->kref
),
4958 ndlp
->nlp_usg_map
, ndlp
);
4959 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))
4961 rc
= lpfc_reg_rpi(phba
, vport
->vpi
, ndlp
->nlp_DID
,
4962 (uint8_t *) &vport
->fc_sparam
, mbox
, ndlp
->nlp_rpi
);
4964 mempool_free(mbox
, phba
->mbox_mem_pool
);
4967 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
4968 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
4969 mbox
->vport
= vport
;
4970 mbox
->context2
= ndlp
;
4971 rc
=lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
4972 if (rc
== MBX_NOT_FINISHED
) {
4973 mempool_free(mbox
, phba
->mbox_mem_pool
);
4978 lpfc_cleanup_node(vport
, ndlp
);
4981 * ndlp->rport must be set to NULL before it reaches here
4982 * i.e. break rport/node link before doing lpfc_nlp_put for
4983 * registered rport and then drop the reference of rport.
4987 * extra lpfc_nlp_put dropped the reference of ndlp
4988 * for registered rport so need to cleanup rport
4990 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
4991 "0940 removed node x%p DID x%x "
4992 " rport not null %p\n",
4993 ndlp
, ndlp
->nlp_DID
, ndlp
->rport
);
4994 rport
= ndlp
->rport
;
4995 rdata
= rport
->dd_data
;
4996 rdata
->pnode
= NULL
;
4998 put_device(&rport
->dev
);
5003 lpfc_matchdid(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5006 D_ID mydid
, ndlpdid
, matchdid
;
5008 if (did
== Bcast_DID
)
5011 /* First check for Direct match */
5012 if (ndlp
->nlp_DID
== did
)
5015 /* Next check for area/domain identically equals 0 match */
5016 mydid
.un
.word
= vport
->fc_myDID
;
5017 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
5021 matchdid
.un
.word
= did
;
5022 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
5023 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
5024 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
5025 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
5026 /* This code is supposed to match the ID
5027 * for a private loop device that is
5028 * connect to fl_port. But we need to
5029 * check that the port did not just go
5030 * from pt2pt to fabric or we could end
5031 * up matching ndlp->nlp_DID 000001 to
5032 * fabric DID 0x20101
5034 if ((ndlpdid
.un
.b
.domain
== 0) &&
5035 (ndlpdid
.un
.b
.area
== 0)) {
5036 if (ndlpdid
.un
.b
.id
&&
5037 vport
->phba
->fc_topology
==
5044 matchdid
.un
.word
= ndlp
->nlp_DID
;
5045 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
5046 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
5047 if ((matchdid
.un
.b
.domain
== 0) &&
5048 (matchdid
.un
.b
.area
== 0)) {
5049 if (matchdid
.un
.b
.id
)
5057 /* Search for a nodelist entry */
5058 static struct lpfc_nodelist
*
5059 __lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
5061 struct lpfc_nodelist
*ndlp
;
5064 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5065 if (lpfc_matchdid(vport
, ndlp
, did
)) {
5066 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
5067 ((uint32_t) ndlp
->nlp_xri
<< 16) |
5068 ((uint32_t) ndlp
->nlp_type
<< 8) |
5069 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
5070 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5071 "0929 FIND node DID "
5072 "Data: x%p x%x x%x x%x %p\n",
5073 ndlp
, ndlp
->nlp_DID
,
5074 ndlp
->nlp_flag
, data1
,
5075 ndlp
->active_rrqs_xri_bitmap
);
5080 /* FIND node did <did> NOT FOUND */
5081 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5082 "0932 FIND node did x%x NOT FOUND.\n", did
);
5086 struct lpfc_nodelist
*
5087 lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
5089 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5090 struct lpfc_nodelist
*ndlp
;
5091 unsigned long iflags
;
5093 spin_lock_irqsave(shost
->host_lock
, iflags
);
5094 ndlp
= __lpfc_findnode_did(vport
, did
);
5095 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
5099 struct lpfc_nodelist
*
5100 lpfc_setup_disc_node(struct lpfc_vport
*vport
, uint32_t did
)
5102 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5103 struct lpfc_nodelist
*ndlp
;
5105 ndlp
= lpfc_findnode_did(vport
, did
);
5107 if ((vport
->fc_flag
& FC_RSCN_MODE
) != 0 &&
5108 lpfc_rscn_payload_check(vport
, did
) == 0)
5110 ndlp
= (struct lpfc_nodelist
*)
5111 mempool_alloc(vport
->phba
->nlp_mem_pool
, GFP_KERNEL
);
5114 lpfc_nlp_init(vport
, ndlp
, did
);
5115 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
5116 if (vport
->phba
->nvmet_support
)
5118 spin_lock_irq(shost
->host_lock
);
5119 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5120 spin_unlock_irq(shost
->host_lock
);
5122 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
5123 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
5126 if (vport
->phba
->nvmet_support
)
5128 spin_lock_irq(shost
->host_lock
);
5129 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5130 spin_unlock_irq(shost
->host_lock
);
5134 if ((vport
->fc_flag
& FC_RSCN_MODE
) &&
5135 !(vport
->fc_flag
& FC_NDISC_ACTIVE
)) {
5136 if (lpfc_rscn_payload_check(vport
, did
)) {
5137 /* If we've already received a PLOGI from this NPort
5138 * we don't need to try to discover it again.
5140 if (ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
5143 /* Since this node is marked for discovery,
5144 * delay timeout is not needed.
5146 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
5147 if (vport
->phba
->nvmet_support
)
5149 spin_lock_irq(shost
->host_lock
);
5150 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5151 spin_unlock_irq(shost
->host_lock
);
5155 /* If we've already received a PLOGI from this NPort,
5156 * or we are already in the process of discovery on it,
5157 * we don't need to try to discover it again.
5159 if (ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
||
5160 ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
5161 ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
5163 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
5164 if (vport
->phba
->nvmet_support
)
5166 spin_lock_irq(shost
->host_lock
);
5167 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
5168 spin_unlock_irq(shost
->host_lock
);
5173 /* Build a list of nodes to discover based on the loopmap */
5175 lpfc_disc_list_loopmap(struct lpfc_vport
*vport
)
5177 struct lpfc_hba
*phba
= vport
->phba
;
5179 uint32_t alpa
, index
;
5181 if (!lpfc_is_link_up(phba
))
5184 if (phba
->fc_topology
!= LPFC_TOPOLOGY_LOOP
)
5187 /* Check for loop map present or not */
5188 if (phba
->alpa_map
[0]) {
5189 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
5190 alpa
= phba
->alpa_map
[j
];
5191 if (((vport
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0))
5193 lpfc_setup_disc_node(vport
, alpa
);
5196 /* No alpamap, so try all alpa's */
5197 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
5198 /* If cfg_scan_down is set, start from highest
5199 * ALPA (0xef) to lowest (0x1).
5201 if (vport
->cfg_scan_down
)
5204 index
= FC_MAXLOOP
- j
- 1;
5205 alpa
= lpfcAlpaArray
[index
];
5206 if ((vport
->fc_myDID
& 0xff) == alpa
)
5208 lpfc_setup_disc_node(vport
, alpa
);
5216 lpfc_issue_clear_la(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
5219 struct lpfc_sli
*psli
= &phba
->sli
;
5220 struct lpfc_sli_ring
*extra_ring
= &psli
->sli3_ring
[LPFC_EXTRA_RING
];
5221 struct lpfc_sli_ring
*fcp_ring
= &psli
->sli3_ring
[LPFC_FCP_RING
];
5225 * if it's not a physical port or if we already send
5226 * clear_la then don't send it.
5228 if ((phba
->link_state
>= LPFC_CLEAR_LA
) ||
5229 (vport
->port_type
!= LPFC_PHYSICAL_PORT
) ||
5230 (phba
->sli_rev
== LPFC_SLI_REV4
))
5233 /* Link up discovery */
5234 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
)) != NULL
) {
5235 phba
->link_state
= LPFC_CLEAR_LA
;
5236 lpfc_clear_la(phba
, mbox
);
5237 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
5238 mbox
->vport
= vport
;
5239 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
5240 if (rc
== MBX_NOT_FINISHED
) {
5241 mempool_free(mbox
, phba
->mbox_mem_pool
);
5242 lpfc_disc_flush_list(vport
);
5243 extra_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
5244 fcp_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
5245 phba
->link_state
= LPFC_HBA_ERROR
;
5250 /* Reg_vpi to tell firmware to resume normal operations */
5252 lpfc_issue_reg_vpi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
5254 LPFC_MBOXQ_t
*regvpimbox
;
5256 regvpimbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5258 lpfc_reg_vpi(vport
, regvpimbox
);
5259 regvpimbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vpi
;
5260 regvpimbox
->vport
= vport
;
5261 if (lpfc_sli_issue_mbox(phba
, regvpimbox
, MBX_NOWAIT
)
5262 == MBX_NOT_FINISHED
) {
5263 mempool_free(regvpimbox
, phba
->mbox_mem_pool
);
5268 /* Start Link up / RSCN discovery on NPR nodes */
5270 lpfc_disc_start(struct lpfc_vport
*vport
)
5272 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5273 struct lpfc_hba
*phba
= vport
->phba
;
5275 uint32_t clear_la_pending
;
5277 if (!lpfc_is_link_up(phba
)) {
5278 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
5279 "3315 Link is not up %x\n",
5284 if (phba
->link_state
== LPFC_CLEAR_LA
)
5285 clear_la_pending
= 1;
5287 clear_la_pending
= 0;
5289 if (vport
->port_state
< LPFC_VPORT_READY
)
5290 vport
->port_state
= LPFC_DISC_AUTH
;
5292 lpfc_set_disctmo(vport
);
5294 vport
->fc_prevDID
= vport
->fc_myDID
;
5295 vport
->num_disc_nodes
= 0;
5297 /* Start Discovery state <hba_state> */
5298 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
5299 "0202 Start Discovery hba state x%x "
5300 "Data: x%x x%x x%x\n",
5301 vport
->port_state
, vport
->fc_flag
, vport
->fc_plogi_cnt
,
5302 vport
->fc_adisc_cnt
);
5304 /* First do ADISCs - if any */
5305 num_sent
= lpfc_els_disc_adisc(vport
);
5310 /* Register the VPI for SLI3, NPIV only. */
5311 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
5312 !(vport
->fc_flag
& FC_PT2PT
) &&
5313 !(vport
->fc_flag
& FC_RSCN_MODE
) &&
5314 (phba
->sli_rev
< LPFC_SLI_REV4
)) {
5315 lpfc_issue_clear_la(phba
, vport
);
5316 lpfc_issue_reg_vpi(phba
, vport
);
5321 * For SLI2, we need to set port_state to READY and continue
5324 if (vport
->port_state
< LPFC_VPORT_READY
&& !clear_la_pending
) {
5325 /* If we get here, there is nothing to ADISC */
5326 lpfc_issue_clear_la(phba
, vport
);
5328 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
5329 vport
->num_disc_nodes
= 0;
5330 /* go thru NPR nodes and issue ELS PLOGIs */
5331 if (vport
->fc_npr_cnt
)
5332 lpfc_els_disc_plogi(vport
);
5334 if (!vport
->num_disc_nodes
) {
5335 spin_lock_irq(shost
->host_lock
);
5336 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
5337 spin_unlock_irq(shost
->host_lock
);
5338 lpfc_can_disctmo(vport
);
5341 vport
->port_state
= LPFC_VPORT_READY
;
5343 /* Next do PLOGIs - if any */
5344 num_sent
= lpfc_els_disc_plogi(vport
);
5349 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5350 /* Check to see if more RSCNs came in while we
5351 * were processing this one.
5353 if ((vport
->fc_rscn_id_cnt
== 0) &&
5354 (!(vport
->fc_flag
& FC_RSCN_DISCOVERY
))) {
5355 spin_lock_irq(shost
->host_lock
);
5356 vport
->fc_flag
&= ~FC_RSCN_MODE
;
5357 spin_unlock_irq(shost
->host_lock
);
5358 lpfc_can_disctmo(vport
);
5360 lpfc_els_handle_rscn(vport
);
5367 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5368 * ring the match the sppecified nodelist.
5371 lpfc_free_tx(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
5373 LIST_HEAD(completions
);
5374 struct lpfc_sli
*psli
;
5376 struct lpfc_iocbq
*iocb
, *next_iocb
;
5377 struct lpfc_sli_ring
*pring
;
5380 pring
= lpfc_phba_elsring(phba
);
5382 /* Error matching iocb on txq or txcmplq
5383 * First check the txq.
5385 spin_lock_irq(&phba
->hbalock
);
5386 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
5387 if (iocb
->context1
!= ndlp
) {
5391 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
5392 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
5394 list_move_tail(&iocb
->list
, &completions
);
5398 /* Next check the txcmplq */
5399 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
5400 if (iocb
->context1
!= ndlp
) {
5404 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
||
5405 icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
) {
5406 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
5409 spin_unlock_irq(&phba
->hbalock
);
5411 /* Cancel all the IOCBs from the completions list */
5412 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
5417 lpfc_disc_flush_list(struct lpfc_vport
*vport
)
5419 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5420 struct lpfc_hba
*phba
= vport
->phba
;
5422 if (vport
->fc_plogi_cnt
|| vport
->fc_adisc_cnt
) {
5423 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5425 if (!NLP_CHK_NODE_ACT(ndlp
))
5427 if (ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
5428 ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
) {
5429 lpfc_free_tx(phba
, ndlp
);
5436 lpfc_cleanup_discovery_resources(struct lpfc_vport
*vport
)
5438 lpfc_els_flush_rscn(vport
);
5439 lpfc_els_flush_cmd(vport
);
5440 lpfc_disc_flush_list(vport
);
5443 /*****************************************************************************/
5445 * NAME: lpfc_disc_timeout
5447 * FUNCTION: Fibre Channel driver discovery timeout routine.
5449 * EXECUTION ENVIRONMENT: interrupt only
5457 /*****************************************************************************/
5459 lpfc_disc_timeout(unsigned long ptr
)
5461 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
5462 struct lpfc_hba
*phba
= vport
->phba
;
5463 uint32_t tmo_posted
;
5464 unsigned long flags
= 0;
5466 if (unlikely(!phba
))
5469 spin_lock_irqsave(&vport
->work_port_lock
, flags
);
5470 tmo_posted
= vport
->work_port_events
& WORKER_DISC_TMO
;
5472 vport
->work_port_events
|= WORKER_DISC_TMO
;
5473 spin_unlock_irqrestore(&vport
->work_port_lock
, flags
);
5476 lpfc_worker_wake_up(phba
);
5481 lpfc_disc_timeout_handler(struct lpfc_vport
*vport
)
5483 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5484 struct lpfc_hba
*phba
= vport
->phba
;
5485 struct lpfc_sli
*psli
= &phba
->sli
;
5486 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
5487 LPFC_MBOXQ_t
*initlinkmbox
;
5488 int rc
, clrlaerr
= 0;
5490 if (!(vport
->fc_flag
& FC_DISC_TMO
))
5493 spin_lock_irq(shost
->host_lock
);
5494 vport
->fc_flag
&= ~FC_DISC_TMO
;
5495 spin_unlock_irq(shost
->host_lock
);
5497 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
5498 "disc timeout: state:x%x rtry:x%x flg:x%x",
5499 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
5501 switch (vport
->port_state
) {
5503 case LPFC_LOCAL_CFG_LINK
:
5505 * port_state is identically LPFC_LOCAL_CFG_LINK while
5506 * waiting for FAN timeout
5508 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_DISCOVERY
,
5509 "0221 FAN timeout\n");
5511 /* Start discovery by sending FLOGI, clean up old rpis */
5512 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
5514 if (!NLP_CHK_NODE_ACT(ndlp
))
5516 if (ndlp
->nlp_state
!= NLP_STE_NPR_NODE
)
5518 if (ndlp
->nlp_type
& NLP_FABRIC
) {
5519 /* Clean up the ndlp on Fabric connections */
5520 lpfc_drop_node(vport
, ndlp
);
5522 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
5523 /* Fail outstanding IO now since device
5524 * is marked for PLOGI.
5526 lpfc_unreg_rpi(vport
, ndlp
);
5529 if (vport
->port_state
!= LPFC_FLOGI
) {
5530 if (phba
->sli_rev
<= LPFC_SLI_REV3
)
5531 lpfc_initial_flogi(vport
);
5533 lpfc_issue_init_vfi(vport
);
5540 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5541 /* Initial FLOGI timeout */
5542 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5543 "0222 Initial %s timeout\n",
5544 vport
->vpi
? "FDISC" : "FLOGI");
5546 /* Assume no Fabric and go on with discovery.
5547 * Check for outstanding ELS FLOGI to abort.
5550 /* FLOGI failed, so just use loop map to make discovery list */
5551 lpfc_disc_list_loopmap(vport
);
5553 /* Start discovery */
5554 lpfc_disc_start(vport
);
5557 case LPFC_FABRIC_CFG_LINK
:
5558 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5560 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5561 "0223 Timeout while waiting for "
5562 "NameServer login\n");
5563 /* Next look for NameServer ndlp */
5564 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
5565 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
5566 lpfc_els_abort(phba
, ndlp
);
5568 /* ReStart discovery */
5572 /* Check for wait for NameServer Rsp timeout */
5573 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5574 "0224 NameServer Query timeout "
5576 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5578 if (vport
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
5579 /* Try it one more time */
5580 vport
->fc_ns_retry
++;
5581 vport
->gidft_inp
= 0;
5582 rc
= lpfc_issue_gidft(vport
);
5586 vport
->fc_ns_retry
= 0;
5590 * Discovery is over.
5591 * set port_state to PORT_READY if SLI2.
5592 * cmpl_reg_vpi will set port_state to READY for SLI3.
5594 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5595 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5596 lpfc_issue_reg_vpi(phba
, vport
);
5598 lpfc_issue_clear_la(phba
, vport
);
5599 vport
->port_state
= LPFC_VPORT_READY
;
5603 /* Setup and issue mailbox INITIALIZE LINK command */
5604 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5605 if (!initlinkmbox
) {
5606 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5607 "0206 Device Discovery "
5608 "completion error\n");
5609 phba
->link_state
= LPFC_HBA_ERROR
;
5613 lpfc_linkdown(phba
);
5614 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
5615 phba
->cfg_link_speed
);
5616 initlinkmbox
->u
.mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
5617 initlinkmbox
->vport
= vport
;
5618 initlinkmbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
5619 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
, MBX_NOWAIT
);
5620 lpfc_set_loopback_flag(phba
);
5621 if (rc
== MBX_NOT_FINISHED
)
5622 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
5626 case LPFC_DISC_AUTH
:
5627 /* Node Authentication timeout */
5628 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5629 "0227 Node Authentication timeout\n");
5630 lpfc_disc_flush_list(vport
);
5633 * set port_state to PORT_READY if SLI2.
5634 * cmpl_reg_vpi will set port_state to READY for SLI3.
5636 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
5637 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
5638 lpfc_issue_reg_vpi(phba
, vport
);
5639 else { /* NPIV Not enabled */
5640 lpfc_issue_clear_la(phba
, vport
);
5641 vport
->port_state
= LPFC_VPORT_READY
;
5646 case LPFC_VPORT_READY
:
5647 if (vport
->fc_flag
& FC_RSCN_MODE
) {
5648 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5649 "0231 RSCN timeout Data: x%x "
5651 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
5653 /* Cleanup any outstanding ELS commands */
5654 lpfc_els_flush_cmd(vport
);
5656 lpfc_els_flush_rscn(vport
);
5657 lpfc_disc_flush_list(vport
);
5662 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5663 "0273 Unexpected discovery timeout, "
5664 "vport State x%x\n", vport
->port_state
);
5668 switch (phba
->link_state
) {
5670 /* CLEAR LA timeout */
5671 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5672 "0228 CLEAR LA timeout\n");
5677 lpfc_issue_clear_la(phba
, vport
);
5679 case LPFC_LINK_UNKNOWN
:
5680 case LPFC_WARM_START
:
5681 case LPFC_INIT_START
:
5682 case LPFC_INIT_MBX_CMDS
:
5683 case LPFC_LINK_DOWN
:
5684 case LPFC_HBA_ERROR
:
5685 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
5686 "0230 Unexpected timeout, hba link "
5687 "state x%x\n", phba
->link_state
);
5691 case LPFC_HBA_READY
:
5696 lpfc_disc_flush_list(vport
);
5697 if (phba
->sli_rev
!= LPFC_SLI_REV4
) {
5698 psli
->sli3_ring
[(LPFC_EXTRA_RING
)].flag
&=
5699 ~LPFC_STOP_IOCB_EVENT
;
5700 psli
->sli3_ring
[LPFC_FCP_RING
].flag
&=
5701 ~LPFC_STOP_IOCB_EVENT
;
5703 vport
->port_state
= LPFC_VPORT_READY
;
5709 * This routine handles processing a NameServer REG_LOGIN mailbox
5710 * command upon completion. It is setup in the LPFC_MBOXQ
5711 * as the completion routine when the command is
5712 * handed off to the SLI layer.
5715 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
5717 MAILBOX_t
*mb
= &pmb
->u
.mb
;
5718 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
5719 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
5720 struct lpfc_vport
*vport
= pmb
->vport
;
5722 pmb
->context1
= NULL
;
5723 pmb
->context2
= NULL
;
5725 if (phba
->sli_rev
< LPFC_SLI_REV4
)
5726 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
5727 ndlp
->nlp_flag
|= NLP_RPI_REGISTERED
;
5728 ndlp
->nlp_type
|= NLP_FABRIC
;
5729 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
5730 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
5731 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5732 ndlp
->nlp_rpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5733 kref_read(&ndlp
->kref
),
5734 ndlp
->nlp_usg_map
, ndlp
);
5736 * Start issuing Fabric-Device Management Interface (FDMI) command to
5737 * 0xfffffa (FDMI well known port).
5738 * DHBA -> DPRT -> RHBA -> RPA (physical port)
5739 * DPRT -> RPRT (vports)
5741 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
5742 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DHBA
, 0);
5744 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DPRT
, 0);
5747 /* decrement the node reference count held for this callback
5751 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
5753 mempool_free(pmb
, phba
->mbox_mem_pool
);
5759 lpfc_filter_by_rpi(struct lpfc_nodelist
*ndlp
, void *param
)
5761 uint16_t *rpi
= param
;
5763 /* check for active node */
5764 if (!NLP_CHK_NODE_ACT(ndlp
))
5767 return ndlp
->nlp_rpi
== *rpi
;
5771 lpfc_filter_by_wwpn(struct lpfc_nodelist
*ndlp
, void *param
)
5773 return memcmp(&ndlp
->nlp_portname
, param
,
5774 sizeof(ndlp
->nlp_portname
)) == 0;
5777 static struct lpfc_nodelist
*
5778 __lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
5780 struct lpfc_nodelist
*ndlp
;
5782 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
5783 if (filter(ndlp
, param
)) {
5784 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5785 "3185 FIND node filter %p DID "
5786 "Data: x%p x%x x%x\n",
5787 filter
, ndlp
, ndlp
->nlp_DID
,
5792 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5793 "3186 FIND node filter %p NOT FOUND.\n", filter
);
5798 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5799 * returns the node list element pointer else return NULL.
5801 struct lpfc_nodelist
*
5802 __lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5804 return __lpfc_find_node(vport
, lpfc_filter_by_rpi
, &rpi
);
5808 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5809 * returns the node element list pointer else return NULL.
5811 struct lpfc_nodelist
*
5812 lpfc_findnode_wwpn(struct lpfc_vport
*vport
, struct lpfc_name
*wwpn
)
5814 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5815 struct lpfc_nodelist
*ndlp
;
5817 spin_lock_irq(shost
->host_lock
);
5818 ndlp
= __lpfc_find_node(vport
, lpfc_filter_by_wwpn
, wwpn
);
5819 spin_unlock_irq(shost
->host_lock
);
5824 * This routine looks up the ndlp lists for the given RPI. If the rpi
5825 * is found, the routine returns the node element list pointer else
5828 struct lpfc_nodelist
*
5829 lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
5831 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
5832 struct lpfc_nodelist
*ndlp
;
5834 spin_lock_irq(shost
->host_lock
);
5835 ndlp
= __lpfc_findnode_rpi(vport
, rpi
);
5836 spin_unlock_irq(shost
->host_lock
);
5841 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5842 * @phba: pointer to lpfc hba data structure.
5843 * @vpi: the physical host virtual N_Port identifier.
5845 * This routine finds a vport on a HBA (referred by @phba) through a
5846 * @vpi. The function walks the HBA's vport list and returns the address
5847 * of the vport with the matching @vpi.
5850 * NULL - No vport with the matching @vpi found
5851 * Otherwise - Address to the vport with the matching @vpi.
5854 lpfc_find_vport_by_vpid(struct lpfc_hba
*phba
, uint16_t vpi
)
5856 struct lpfc_vport
*vport
;
5857 unsigned long flags
;
5860 /* The physical ports are always vpi 0 - translate is unnecessary. */
5863 * Translate the physical vpi to the logical vpi. The
5864 * vport stores the logical vpi.
5866 for (i
= 0; i
< phba
->max_vpi
; i
++) {
5867 if (vpi
== phba
->vpi_ids
[i
])
5871 if (i
>= phba
->max_vpi
) {
5872 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
5873 "2936 Could not find Vport mapped "
5874 "to vpi %d\n", vpi
);
5879 spin_lock_irqsave(&phba
->hbalock
, flags
);
5880 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
5881 if (vport
->vpi
== i
) {
5882 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5886 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
5891 lpfc_nlp_init(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
5894 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
5896 lpfc_initialize_node(vport
, ndlp
, did
);
5897 INIT_LIST_HEAD(&ndlp
->nlp_listp
);
5898 if (vport
->phba
->sli_rev
== LPFC_SLI_REV4
) {
5899 ndlp
->nlp_rpi
= lpfc_sli4_alloc_rpi(vport
->phba
);
5900 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
5901 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
5902 "map:%x %p\n", ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
5904 kref_read(&ndlp
->kref
),
5905 ndlp
->nlp_usg_map
, ndlp
);
5907 ndlp
->active_rrqs_xri_bitmap
=
5908 mempool_alloc(vport
->phba
->active_rrq_pool
,
5910 if (ndlp
->active_rrqs_xri_bitmap
)
5911 memset(ndlp
->active_rrqs_xri_bitmap
, 0,
5912 ndlp
->phba
->cfg_rrq_xri_bitmap_sz
);
5917 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
5918 "node init: did:x%x",
5919 ndlp
->nlp_DID
, 0, 0);
5924 /* This routine releases all resources associated with a specifc NPort's ndlp
5925 * and mempool_free's the nodelist.
5928 lpfc_nlp_release(struct kref
*kref
)
5930 struct lpfc_hba
*phba
;
5931 unsigned long flags
;
5932 struct lpfc_nodelist
*ndlp
= container_of(kref
, struct lpfc_nodelist
,
5935 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5936 "node release: did:x%x flg:x%x type:x%x",
5937 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
5939 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
5940 "0279 lpfc_nlp_release: ndlp:x%p did %x "
5941 "usgmap:x%x refcnt:%d rpi:%x\n",
5942 (void *)ndlp
, ndlp
->nlp_DID
, ndlp
->nlp_usg_map
,
5943 kref_read(&ndlp
->kref
), ndlp
->nlp_rpi
);
5945 /* remove ndlp from action. */
5946 lpfc_nlp_remove(ndlp
->vport
, ndlp
);
5948 /* clear the ndlp active flag for all release cases */
5950 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5951 NLP_CLR_NODE_ACT(ndlp
);
5952 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5953 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5954 lpfc_sli4_free_rpi(phba
, ndlp
->nlp_rpi
);
5956 /* free ndlp memory for final ndlp release */
5957 if (NLP_CHK_FREE_REQ(ndlp
)) {
5958 kfree(ndlp
->lat_data
);
5959 if (phba
->sli_rev
== LPFC_SLI_REV4
)
5960 mempool_free(ndlp
->active_rrqs_xri_bitmap
,
5961 ndlp
->phba
->active_rrq_pool
);
5962 mempool_free(ndlp
, ndlp
->phba
->nlp_mem_pool
);
5966 /* This routine bumps the reference count for a ndlp structure to ensure
5967 * that one discovery thread won't free a ndlp while another discovery thread
5970 struct lpfc_nodelist
*
5971 lpfc_nlp_get(struct lpfc_nodelist
*ndlp
)
5973 struct lpfc_hba
*phba
;
5974 unsigned long flags
;
5977 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
5978 "node get: did:x%x flg:x%x refcnt:x%x",
5979 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
5980 kref_read(&ndlp
->kref
));
5981 /* The check of ndlp usage to prevent incrementing the
5982 * ndlp reference count that is in the process of being
5986 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
5987 if (!NLP_CHK_NODE_ACT(ndlp
) || NLP_CHK_FREE_ACK(ndlp
)) {
5988 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
5989 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
5990 "0276 lpfc_nlp_get: ndlp:x%p "
5991 "usgmap:x%x refcnt:%d\n",
5992 (void *)ndlp
, ndlp
->nlp_usg_map
,
5993 kref_read(&ndlp
->kref
));
5996 kref_get(&ndlp
->kref
);
5997 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6002 /* This routine decrements the reference count for a ndlp structure. If the
6003 * count goes to 0, this indicates the the associated nodelist should be
6004 * freed. Returning 1 indicates the ndlp resource has been released; on the
6005 * other hand, returning 0 indicates the ndlp resource has not been released
6009 lpfc_nlp_put(struct lpfc_nodelist
*ndlp
)
6011 struct lpfc_hba
*phba
;
6012 unsigned long flags
;
6017 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
6018 "node put: did:x%x flg:x%x refcnt:x%x",
6019 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
6020 kref_read(&ndlp
->kref
));
6022 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
6023 /* Check the ndlp memory free acknowledge flag to avoid the
6024 * possible race condition that kref_put got invoked again
6025 * after previous one has done ndlp memory free.
6027 if (NLP_CHK_FREE_ACK(ndlp
)) {
6028 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6029 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
6030 "0274 lpfc_nlp_put: ndlp:x%p "
6031 "usgmap:x%x refcnt:%d\n",
6032 (void *)ndlp
, ndlp
->nlp_usg_map
,
6033 kref_read(&ndlp
->kref
));
6036 /* Check the ndlp inactivate log flag to avoid the possible
6037 * race condition that kref_put got invoked again after ndlp
6038 * is already in inactivating state.
6040 if (NLP_CHK_IACT_REQ(ndlp
)) {
6041 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6042 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
6043 "0275 lpfc_nlp_put: ndlp:x%p "
6044 "usgmap:x%x refcnt:%d\n",
6045 (void *)ndlp
, ndlp
->nlp_usg_map
,
6046 kref_read(&ndlp
->kref
));
6049 /* For last put, mark the ndlp usage flags to make sure no
6050 * other kref_get and kref_put on the same ndlp shall get
6051 * in between the process when the final kref_put has been
6052 * invoked on this ndlp.
6054 if (kref_read(&ndlp
->kref
) == 1) {
6055 /* Indicate ndlp is put to inactive state. */
6056 NLP_SET_IACT_REQ(ndlp
);
6057 /* Acknowledge ndlp memory free has been seen. */
6058 if (NLP_CHK_FREE_REQ(ndlp
))
6059 NLP_SET_FREE_ACK(ndlp
);
6061 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
6062 /* Note, the kref_put returns 1 when decrementing a reference
6063 * count that was 1, it invokes the release callback function,
6064 * but it still left the reference count as 1 (not actually
6065 * performs the last decrementation). Otherwise, it actually
6066 * decrements the reference count and returns 0.
6068 return kref_put(&ndlp
->kref
, lpfc_nlp_release
);
6071 /* This routine free's the specified nodelist if it is not in use
6072 * by any other discovery thread. This routine returns 1 if the
6073 * ndlp has been freed. A return value of 0 indicates the ndlp is
6074 * not yet been released.
6077 lpfc_nlp_not_used(struct lpfc_nodelist
*ndlp
)
6079 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
6080 "node not used: did:x%x flg:x%x refcnt:x%x",
6081 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
6082 kref_read(&ndlp
->kref
));
6083 if (kref_read(&ndlp
->kref
) == 1)
6084 if (lpfc_nlp_put(ndlp
))
6090 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6091 * @phba: Pointer to hba context object.
6093 * This function iterate through all FC nodes associated
6094 * will all vports to check if there is any node with
6095 * fc_rports associated with it. If there is an fc_rport
6096 * associated with the node, then the node is either in
6097 * discovered state or its devloss_timer is pending.
6100 lpfc_fcf_inuse(struct lpfc_hba
*phba
)
6102 struct lpfc_vport
**vports
;
6104 struct lpfc_nodelist
*ndlp
;
6105 struct Scsi_Host
*shost
;
6107 vports
= lpfc_create_vport_work_array(phba
);
6109 /* If driver cannot allocate memory, indicate fcf is in use */
6113 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
6114 shost
= lpfc_shost_from_vport(vports
[i
]);
6115 spin_lock_irq(shost
->host_lock
);
6117 * IF the CVL_RCVD bit is not set then we have sent the
6119 * If dev_loss fires while we are waiting we do not want to
6122 if (!(vports
[i
]->fc_flag
& FC_VPORT_CVL_RCVD
)) {
6123 spin_unlock_irq(shost
->host_lock
);
6127 list_for_each_entry(ndlp
, &vports
[i
]->fc_nodes
, nlp_listp
) {
6128 if (NLP_CHK_NODE_ACT(ndlp
) && ndlp
->rport
&&
6129 (ndlp
->rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)) {
6131 spin_unlock_irq(shost
->host_lock
);
6133 } else if (ndlp
->nlp_flag
& NLP_RPI_REGISTERED
) {
6135 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
6136 "2624 RPI %x DID %x flag %x "
6137 "still logged in\n",
6138 ndlp
->nlp_rpi
, ndlp
->nlp_DID
,
6142 spin_unlock_irq(shost
->host_lock
);
6145 lpfc_destroy_vport_work_array(phba
, vports
);
6150 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6151 * @phba: Pointer to hba context object.
6152 * @mboxq: Pointer to mailbox object.
6154 * This function frees memory associated with the mailbox command.
6157 lpfc_unregister_vfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
6159 struct lpfc_vport
*vport
= mboxq
->vport
;
6160 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
6162 if (mboxq
->u
.mb
.mbxStatus
) {
6163 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6164 "2555 UNREG_VFI mbxStatus error x%x "
6166 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
6168 spin_lock_irq(shost
->host_lock
);
6169 phba
->pport
->fc_flag
&= ~FC_VFI_REGISTERED
;
6170 spin_unlock_irq(shost
->host_lock
);
6171 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6176 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6177 * @phba: Pointer to hba context object.
6178 * @mboxq: Pointer to mailbox object.
6180 * This function frees memory associated with the mailbox command.
6183 lpfc_unregister_fcfi_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
6185 struct lpfc_vport
*vport
= mboxq
->vport
;
6187 if (mboxq
->u
.mb
.mbxStatus
) {
6188 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6189 "2550 UNREG_FCFI mbxStatus error x%x "
6191 mboxq
->u
.mb
.mbxStatus
, vport
->port_state
);
6193 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6198 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6199 * @phba: Pointer to hba context object.
6201 * This function prepare the HBA for unregistering the currently registered
6202 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6206 lpfc_unregister_fcf_prep(struct lpfc_hba
*phba
)
6208 struct lpfc_vport
**vports
;
6209 struct lpfc_nodelist
*ndlp
;
6210 struct Scsi_Host
*shost
;
6213 /* Unregister RPIs */
6214 if (lpfc_fcf_inuse(phba
))
6215 lpfc_unreg_hba_rpis(phba
);
6217 /* At this point, all discovery is aborted */
6218 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
6220 /* Unregister VPIs */
6221 vports
= lpfc_create_vport_work_array(phba
);
6222 if (vports
&& (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))
6223 for (i
= 0; i
<= phba
->max_vports
&& vports
[i
] != NULL
; i
++) {
6224 /* Stop FLOGI/FDISC retries */
6225 ndlp
= lpfc_findnode_did(vports
[i
], Fabric_DID
);
6227 lpfc_cancel_retry_delay_tmo(vports
[i
], ndlp
);
6228 lpfc_cleanup_pending_mbox(vports
[i
]);
6229 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6230 lpfc_sli4_unreg_all_rpis(vports
[i
]);
6231 lpfc_mbx_unreg_vpi(vports
[i
]);
6232 shost
= lpfc_shost_from_vport(vports
[i
]);
6233 spin_lock_irq(shost
->host_lock
);
6234 vports
[i
]->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
6235 vports
[i
]->vpi_state
&= ~LPFC_VPI_REGISTERED
;
6236 spin_unlock_irq(shost
->host_lock
);
6238 lpfc_destroy_vport_work_array(phba
, vports
);
6239 if (i
== 0 && (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
))) {
6240 ndlp
= lpfc_findnode_did(phba
->pport
, Fabric_DID
);
6242 lpfc_cancel_retry_delay_tmo(phba
->pport
, ndlp
);
6243 lpfc_cleanup_pending_mbox(phba
->pport
);
6244 if (phba
->sli_rev
== LPFC_SLI_REV4
)
6245 lpfc_sli4_unreg_all_rpis(phba
->pport
);
6246 lpfc_mbx_unreg_vpi(phba
->pport
);
6247 shost
= lpfc_shost_from_vport(phba
->pport
);
6248 spin_lock_irq(shost
->host_lock
);
6249 phba
->pport
->fc_flag
|= FC_VPORT_NEEDS_INIT_VPI
;
6250 phba
->pport
->vpi_state
&= ~LPFC_VPI_REGISTERED
;
6251 spin_unlock_irq(shost
->host_lock
);
6254 /* Cleanup any outstanding ELS commands */
6255 lpfc_els_flush_all_cmd(phba
);
6257 /* Unregister the physical port VFI */
6258 rc
= lpfc_issue_unreg_vfi(phba
->pport
);
6263 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6264 * @phba: Pointer to hba context object.
6266 * This function issues synchronous unregister FCF mailbox command to HBA to
6267 * unregister the currently registered FCF record. The driver does not reset
6268 * the driver FCF usage state flags.
6270 * Return 0 if successfully issued, none-zero otherwise.
6273 lpfc_sli4_unregister_fcf(struct lpfc_hba
*phba
)
6278 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6280 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6281 "2551 UNREG_FCFI mbox allocation failed"
6282 "HBA state x%x\n", phba
->pport
->port_state
);
6285 lpfc_unreg_fcfi(mbox
, phba
->fcf
.fcfi
);
6286 mbox
->vport
= phba
->pport
;
6287 mbox
->mbox_cmpl
= lpfc_unregister_fcfi_cmpl
;
6288 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
6290 if (rc
== MBX_NOT_FINISHED
) {
6291 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6292 "2552 Unregister FCFI command failed rc x%x "
6294 rc
, phba
->pport
->port_state
);
6301 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6302 * @phba: Pointer to hba context object.
6304 * This function unregisters the currently reigstered FCF. This function
6305 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6308 lpfc_unregister_fcf_rescan(struct lpfc_hba
*phba
)
6312 /* Preparation for unregistering fcf */
6313 rc
= lpfc_unregister_fcf_prep(phba
);
6315 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
6316 "2748 Failed to prepare for unregistering "
6317 "HBA's FCF record: rc=%d\n", rc
);
6321 /* Now, unregister FCF record and reset HBA FCF state */
6322 rc
= lpfc_sli4_unregister_fcf(phba
);
6325 /* Reset HBA FCF states after successful unregister FCF */
6326 phba
->fcf
.fcf_flag
= 0;
6327 phba
->fcf
.current_rec
.flag
= 0;
6330 * If driver is not unloading, check if there is any other
6331 * FCF record that can be used for discovery.
6333 if ((phba
->pport
->load_flag
& FC_UNLOADING
) ||
6334 (phba
->link_state
< LPFC_LINK_UP
))
6337 /* This is considered as the initial FCF discovery scan */
6338 spin_lock_irq(&phba
->hbalock
);
6339 phba
->fcf
.fcf_flag
|= FCF_INIT_DISC
;
6340 spin_unlock_irq(&phba
->hbalock
);
6342 /* Reset FCF roundrobin bmask for new discovery */
6343 lpfc_sli4_clear_fcf_rr_bmask(phba
);
6345 rc
= lpfc_sli4_fcf_scan_read_fcf_rec(phba
, LPFC_FCOE_FCF_GET_FIRST
);
6348 spin_lock_irq(&phba
->hbalock
);
6349 phba
->fcf
.fcf_flag
&= ~FCF_INIT_DISC
;
6350 spin_unlock_irq(&phba
->hbalock
);
6351 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
|LOG_MBOX
,
6352 "2553 lpfc_unregister_unused_fcf failed "
6353 "to read FCF record HBA state x%x\n",
6354 phba
->pport
->port_state
);
6359 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6360 * @phba: Pointer to hba context object.
6362 * This function just unregisters the currently reigstered FCF. It does not
6363 * try to find another FCF for discovery.
6366 lpfc_unregister_fcf(struct lpfc_hba
*phba
)
6370 /* Preparation for unregistering fcf */
6371 rc
= lpfc_unregister_fcf_prep(phba
);
6373 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
6374 "2749 Failed to prepare for unregistering "
6375 "HBA's FCF record: rc=%d\n", rc
);
6379 /* Now, unregister FCF record and reset HBA FCF state */
6380 rc
= lpfc_sli4_unregister_fcf(phba
);
6383 /* Set proper HBA FCF states after successful unregister FCF */
6384 spin_lock_irq(&phba
->hbalock
);
6385 phba
->fcf
.fcf_flag
&= ~FCF_REGISTERED
;
6386 spin_unlock_irq(&phba
->hbalock
);
6390 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6391 * @phba: Pointer to hba context object.
6393 * This function check if there are any connected remote port for the FCF and
6394 * if all the devices are disconnected, this function unregister FCFI.
6395 * This function also tries to use another FCF for discovery.
6398 lpfc_unregister_unused_fcf(struct lpfc_hba
*phba
)
6401 * If HBA is not running in FIP mode, if HBA does not support
6402 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6403 * registered, do nothing.
6405 spin_lock_irq(&phba
->hbalock
);
6406 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) ||
6407 !(phba
->fcf
.fcf_flag
& FCF_REGISTERED
) ||
6408 !(phba
->hba_flag
& HBA_FIP_SUPPORT
) ||
6409 (phba
->fcf
.fcf_flag
& FCF_DISCOVERY
) ||
6410 (phba
->pport
->port_state
== LPFC_FLOGI
)) {
6411 spin_unlock_irq(&phba
->hbalock
);
6414 spin_unlock_irq(&phba
->hbalock
);
6416 if (lpfc_fcf_inuse(phba
))
6419 lpfc_unregister_fcf_rescan(phba
);
6423 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6424 * @phba: Pointer to hba context object.
6425 * @buff: Buffer containing the FCF connection table as in the config
6427 * This function create driver data structure for the FCF connection
6428 * record table read from config region 23.
6431 lpfc_read_fcf_conn_tbl(struct lpfc_hba
*phba
,
6434 struct lpfc_fcf_conn_entry
*conn_entry
, *next_conn_entry
;
6435 struct lpfc_fcf_conn_hdr
*conn_hdr
;
6436 struct lpfc_fcf_conn_rec
*conn_rec
;
6437 uint32_t record_count
;
6440 /* Free the current connect table */
6441 list_for_each_entry_safe(conn_entry
, next_conn_entry
,
6442 &phba
->fcf_conn_rec_list
, list
) {
6443 list_del_init(&conn_entry
->list
);
6447 conn_hdr
= (struct lpfc_fcf_conn_hdr
*) buff
;
6448 record_count
= conn_hdr
->length
* sizeof(uint32_t)/
6449 sizeof(struct lpfc_fcf_conn_rec
);
6451 conn_rec
= (struct lpfc_fcf_conn_rec
*)
6452 (buff
+ sizeof(struct lpfc_fcf_conn_hdr
));
6454 for (i
= 0; i
< record_count
; i
++) {
6455 if (!(conn_rec
[i
].flags
& FCFCNCT_VALID
))
6457 conn_entry
= kzalloc(sizeof(struct lpfc_fcf_conn_entry
),
6460 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6461 "2566 Failed to allocate connection"
6466 memcpy(&conn_entry
->conn_rec
, &conn_rec
[i
],
6467 sizeof(struct lpfc_fcf_conn_rec
));
6468 list_add_tail(&conn_entry
->list
,
6469 &phba
->fcf_conn_rec_list
);
6472 if (!list_empty(&phba
->fcf_conn_rec_list
)) {
6474 list_for_each_entry(conn_entry
, &phba
->fcf_conn_rec_list
,
6476 conn_rec
= &conn_entry
->conn_rec
;
6477 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6478 "3345 FCF connection list rec[%02d]: "
6479 "flags:x%04x, vtag:x%04x, "
6480 "fabric_name:x%02x:%02x:%02x:%02x:"
6481 "%02x:%02x:%02x:%02x, "
6482 "switch_name:x%02x:%02x:%02x:%02x:"
6483 "%02x:%02x:%02x:%02x\n", i
++,
6484 conn_rec
->flags
, conn_rec
->vlan_tag
,
6485 conn_rec
->fabric_name
[0],
6486 conn_rec
->fabric_name
[1],
6487 conn_rec
->fabric_name
[2],
6488 conn_rec
->fabric_name
[3],
6489 conn_rec
->fabric_name
[4],
6490 conn_rec
->fabric_name
[5],
6491 conn_rec
->fabric_name
[6],
6492 conn_rec
->fabric_name
[7],
6493 conn_rec
->switch_name
[0],
6494 conn_rec
->switch_name
[1],
6495 conn_rec
->switch_name
[2],
6496 conn_rec
->switch_name
[3],
6497 conn_rec
->switch_name
[4],
6498 conn_rec
->switch_name
[5],
6499 conn_rec
->switch_name
[6],
6500 conn_rec
->switch_name
[7]);
6506 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6507 * @phba: Pointer to hba context object.
6508 * @buff: Buffer containing the FCoE parameter data structure.
6510 * This function update driver data structure with config
6511 * parameters read from config region 23.
6514 lpfc_read_fcoe_param(struct lpfc_hba
*phba
,
6517 struct lpfc_fip_param_hdr
*fcoe_param_hdr
;
6518 struct lpfc_fcoe_params
*fcoe_param
;
6520 fcoe_param_hdr
= (struct lpfc_fip_param_hdr
*)
6522 fcoe_param
= (struct lpfc_fcoe_params
*)
6523 (buff
+ sizeof(struct lpfc_fip_param_hdr
));
6525 if ((fcoe_param_hdr
->parm_version
!= FIPP_VERSION
) ||
6526 (fcoe_param_hdr
->length
!= FCOE_PARAM_LENGTH
))
6529 if (fcoe_param_hdr
->parm_flags
& FIPP_VLAN_VALID
) {
6530 phba
->valid_vlan
= 1;
6531 phba
->vlan_id
= le16_to_cpu(fcoe_param
->vlan_tag
) &
6535 phba
->fc_map
[0] = fcoe_param
->fc_map
[0];
6536 phba
->fc_map
[1] = fcoe_param
->fc_map
[1];
6537 phba
->fc_map
[2] = fcoe_param
->fc_map
[2];
6542 * lpfc_get_rec_conf23 - Get a record type in config region data.
6543 * @buff: Buffer containing config region 23 data.
6544 * @size: Size of the data buffer.
6545 * @rec_type: Record type to be searched.
6547 * This function searches config region data to find the beginning
6548 * of the record specified by record_type. If record found, this
6549 * function return pointer to the record else return NULL.
6552 lpfc_get_rec_conf23(uint8_t *buff
, uint32_t size
, uint8_t rec_type
)
6554 uint32_t offset
= 0, rec_length
;
6556 if ((buff
[0] == LPFC_REGION23_LAST_REC
) ||
6557 (size
< sizeof(uint32_t)))
6560 rec_length
= buff
[offset
+ 1];
6563 * One TLV record has one word header and number of data words
6564 * specified in the rec_length field of the record header.
6566 while ((offset
+ rec_length
* sizeof(uint32_t) + sizeof(uint32_t))
6568 if (buff
[offset
] == rec_type
)
6569 return &buff
[offset
];
6571 if (buff
[offset
] == LPFC_REGION23_LAST_REC
)
6574 offset
+= rec_length
* sizeof(uint32_t) + sizeof(uint32_t);
6575 rec_length
= buff
[offset
+ 1];
6581 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6582 * @phba: Pointer to lpfc_hba data structure.
6583 * @buff: Buffer containing config region 23 data.
6584 * @size: Size of the data buffer.
6586 * This function parses the FCoE config parameters in config region 23 and
6587 * populate driver data structure with the parameters.
6590 lpfc_parse_fcoe_conf(struct lpfc_hba
*phba
,
6594 uint32_t offset
= 0;
6598 * If data size is less than 2 words signature and version cannot be
6601 if (size
< 2*sizeof(uint32_t))
6604 /* Check the region signature first */
6605 if (memcmp(buff
, LPFC_REGION23_SIGNATURE
, 4)) {
6606 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6607 "2567 Config region 23 has bad signature\n");
6613 /* Check the data structure version */
6614 if (buff
[offset
] != LPFC_REGION23_VERSION
) {
6615 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6616 "2568 Config region 23 has bad version\n");
6621 /* Read FCoE param record */
6622 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6623 size
- offset
, FCOE_PARAM_TYPE
);
6625 lpfc_read_fcoe_param(phba
, rec_ptr
);
6627 /* Read FCF connection table */
6628 rec_ptr
= lpfc_get_rec_conf23(&buff
[offset
],
6629 size
- offset
, FCOE_CONN_TBL_TYPE
);
6631 lpfc_read_fcf_conn_tbl(phba
, rec_ptr
);