1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/kthread.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
33 #include "lpfc_disc.h"
35 #include "lpfc_scsi.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_crtn.h"
39 #include "lpfc_vport.h"
40 #include "lpfc_debugfs.h"
42 /* AlpaArray for assignment of scsid for scan-down and bind_method */
43 static uint8_t lpfcAlpaArray
[] = {
44 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
45 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
46 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
47 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
48 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
49 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
50 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
51 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
52 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
53 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
54 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
55 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
56 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
59 static void lpfc_disc_timeout_handler(struct lpfc_vport
*);
62 lpfc_terminate_rport_io(struct fc_rport
*rport
)
64 struct lpfc_rport_data
*rdata
;
65 struct lpfc_nodelist
* ndlp
;
66 struct lpfc_hba
*phba
;
68 rdata
= rport
->dd_data
;
72 if (rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)
73 printk(KERN_ERR
"Cannot find remote node"
74 " to terminate I/O Data x%x\n",
79 phba
= ndlp
->vport
->phba
;
81 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
82 "rport terminate: sid:x%x did:x%x flg:x%x",
83 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
85 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
86 lpfc_sli_abort_iocb(phba
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
87 ndlp
->nlp_sid
, 0, 0, LPFC_CTX_TGT
);
94 * This function will be called when dev_loss_tmo fire.
97 lpfc_dev_loss_tmo_callbk(struct fc_rport
*rport
)
99 struct lpfc_rport_data
*rdata
;
100 struct lpfc_nodelist
* ndlp
;
101 struct lpfc_vport
*vport
;
102 struct lpfc_hba
*phba
;
103 struct completion devloss_compl
;
104 struct lpfc_work_evt
*evtp
;
106 rdata
= rport
->dd_data
;
110 if (rport
->scsi_target_id
!= -1) {
111 printk(KERN_ERR
"Cannot find remote node"
112 " for rport in dev_loss_tmo_callbk x%x\n",
121 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
122 "rport devlosscb: sid:x%x did:x%x flg:x%x",
123 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
125 init_completion(&devloss_compl
);
126 evtp
= &ndlp
->dev_loss_evt
;
128 if (!list_empty(&evtp
->evt_listp
))
131 spin_lock_irq(&phba
->hbalock
);
132 evtp
->evt_arg1
= ndlp
;
133 evtp
->evt_arg2
= &devloss_compl
;
134 evtp
->evt
= LPFC_EVT_DEV_LOSS
;
135 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
137 wake_up(phba
->work_wait
);
139 spin_unlock_irq(&phba
->hbalock
);
141 wait_for_completion(&devloss_compl
);
147 * This function is called from the worker thread when dev_loss_tmo
151 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist
*ndlp
)
153 struct lpfc_rport_data
*rdata
;
154 struct fc_rport
*rport
;
155 struct lpfc_vport
*vport
;
156 struct lpfc_hba
*phba
;
165 rdata
= rport
->dd_data
;
166 name
= (uint8_t *) &ndlp
->nlp_portname
;
170 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
171 "rport devlosstmo:did:x%x type:x%x id:x%x",
172 ndlp
->nlp_DID
, ndlp
->nlp_type
, rport
->scsi_target_id
);
174 if (!(vport
->load_flag
& FC_UNLOADING
) &&
175 ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)
178 if (ndlp
->nlp_type
& NLP_FABRIC
) {
182 /* We will clean up these Nodes in linkup */
183 put_node
= rdata
->pnode
!= NULL
;
184 put_rport
= ndlp
->rport
!= NULL
;
190 put_device(&rport
->dev
);
194 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
196 /* flush the target */
197 lpfc_sli_abort_iocb(phba
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
198 ndlp
->nlp_sid
, 0, 0, LPFC_CTX_TGT
);
200 if (vport
->load_flag
& FC_UNLOADING
)
204 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
205 "%d (%d):0203 Devloss timeout on "
206 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
207 "NPort x%x Data: x%x x%x x%x\n",
208 phba
->brd_no
, vport
->vpi
,
209 *name
, *(name
+1), *(name
+2), *(name
+3),
210 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
211 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
212 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
214 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
215 "%d (%d):0204 Devloss timeout on "
216 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
217 "NPort x%x Data: x%x x%x x%x\n",
218 phba
->brd_no
, vport
->vpi
,
219 *name
, *(name
+1), *(name
+2), *(name
+3),
220 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
221 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
222 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
225 if (!(vport
->load_flag
& FC_UNLOADING
) &&
226 !(ndlp
->nlp_flag
& NLP_DELAY_TMO
) &&
227 !(ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) &&
228 (ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
))
229 lpfc_disc_state_machine(vport
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
234 put_node
= rdata
->pnode
!= NULL
;
235 put_rport
= ndlp
->rport
!= NULL
;
241 put_device(&rport
->dev
);
247 lpfc_worker_wake_up(struct lpfc_hba
*phba
)
249 wake_up(phba
->work_wait
);
254 lpfc_work_list_done(struct lpfc_hba
*phba
)
256 struct lpfc_work_evt
*evtp
= NULL
;
257 struct lpfc_nodelist
*ndlp
;
258 struct lpfc_vport
*vport
;
261 spin_lock_irq(&phba
->hbalock
);
262 while (!list_empty(&phba
->work_list
)) {
263 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
265 spin_unlock_irq(&phba
->hbalock
);
268 case LPFC_EVT_DEV_LOSS_DELAY
:
269 free_evt
= 0; /* evt is part of ndlp */
270 ndlp
= (struct lpfc_nodelist
*) (evtp
->evt_arg1
);
275 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
276 "rport devlossdly:did:x%x flg:x%x",
277 ndlp
->nlp_DID
, ndlp
->nlp_flag
, 0);
279 if (!(vport
->load_flag
& FC_UNLOADING
) &&
280 !(ndlp
->nlp_flag
& NLP_DELAY_TMO
) &&
281 !(ndlp
->nlp_flag
& NLP_NPR_2B_DISC
)) {
282 lpfc_disc_state_machine(vport
, ndlp
, NULL
,
286 case LPFC_EVT_ELS_RETRY
:
287 ndlp
= (struct lpfc_nodelist
*) (evtp
->evt_arg1
);
288 lpfc_els_retry_delay_handler(ndlp
);
289 free_evt
= 0; /* evt is part of ndlp */
291 case LPFC_EVT_DEV_LOSS
:
292 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
294 lpfc_dev_loss_tmo_handler(ndlp
);
296 complete((struct completion
*)(evtp
->evt_arg2
));
299 case LPFC_EVT_ONLINE
:
300 if (phba
->link_state
< LPFC_LINK_DOWN
)
301 *(int *) (evtp
->evt_arg1
) = lpfc_online(phba
);
303 *(int *) (evtp
->evt_arg1
) = 0;
304 complete((struct completion
*)(evtp
->evt_arg2
));
306 case LPFC_EVT_OFFLINE_PREP
:
307 if (phba
->link_state
>= LPFC_LINK_DOWN
)
308 lpfc_offline_prep(phba
);
309 *(int *)(evtp
->evt_arg1
) = 0;
310 complete((struct completion
*)(evtp
->evt_arg2
));
312 case LPFC_EVT_OFFLINE
:
314 lpfc_sli_brdrestart(phba
);
315 *(int *)(evtp
->evt_arg1
) =
316 lpfc_sli_brdready(phba
, HS_FFRDY
| HS_MBRDY
);
317 lpfc_unblock_mgmt_io(phba
);
318 complete((struct completion
*)(evtp
->evt_arg2
));
320 case LPFC_EVT_WARM_START
:
322 lpfc_reset_barrier(phba
);
323 lpfc_sli_brdreset(phba
);
324 lpfc_hba_down_post(phba
);
325 *(int *)(evtp
->evt_arg1
) =
326 lpfc_sli_brdready(phba
, HS_MBRDY
);
327 lpfc_unblock_mgmt_io(phba
);
328 complete((struct completion
*)(evtp
->evt_arg2
));
332 *(int *)(evtp
->evt_arg1
)
333 = (phba
->pport
->stopped
)
334 ? 0 : lpfc_sli_brdkill(phba
);
335 lpfc_unblock_mgmt_io(phba
);
336 complete((struct completion
*)(evtp
->evt_arg2
));
341 spin_lock_irq(&phba
->hbalock
);
343 spin_unlock_irq(&phba
->hbalock
);
348 lpfc_work_done(struct lpfc_hba
*phba
)
350 struct lpfc_sli_ring
*pring
;
351 uint32_t ha_copy
, status
, control
, work_port_events
;
352 struct lpfc_vport
*vport
;
354 spin_lock_irq(&phba
->hbalock
);
355 ha_copy
= phba
->work_ha
;
357 spin_unlock_irq(&phba
->hbalock
);
359 if (ha_copy
& HA_ERATT
)
360 lpfc_handle_eratt(phba
);
362 if (ha_copy
& HA_MBATT
)
363 lpfc_sli_handle_mb_event(phba
);
365 if (ha_copy
& HA_LATT
)
366 lpfc_handle_latt(phba
);
368 spin_lock_irq(&phba
->hbalock
);
369 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
370 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
372 if (!scsi_host_get(shost
)) {
375 spin_unlock_irq(&phba
->hbalock
);
376 work_port_events
= vport
->work_port_events
;
378 if (work_port_events
& WORKER_DISC_TMO
)
379 lpfc_disc_timeout_handler(vport
);
381 if (work_port_events
& WORKER_ELS_TMO
)
382 lpfc_els_timeout_handler(vport
);
384 if (work_port_events
& WORKER_HB_TMO
)
385 lpfc_hb_timeout_handler(phba
);
387 if (work_port_events
& WORKER_MBOX_TMO
)
388 lpfc_mbox_timeout_handler(phba
);
390 if (work_port_events
& WORKER_FABRIC_BLOCK_TMO
)
391 lpfc_unblock_fabric_iocbs(phba
);
393 if (work_port_events
& WORKER_FDMI_TMO
)
394 lpfc_fdmi_timeout_handler(vport
);
396 if (work_port_events
& WORKER_RAMP_DOWN_QUEUE
)
397 lpfc_ramp_down_queue_handler(phba
);
399 if (work_port_events
& WORKER_RAMP_UP_QUEUE
)
400 lpfc_ramp_up_queue_handler(phba
);
402 spin_lock_irq(&vport
->work_port_lock
);
403 vport
->work_port_events
&= ~work_port_events
;
404 spin_unlock_irq(&vport
->work_port_lock
);
405 scsi_host_put(shost
);
406 spin_lock_irq(&phba
->hbalock
);
408 spin_unlock_irq(&phba
->hbalock
);
410 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
411 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
412 status
>>= (4*LPFC_ELS_RING
);
413 if ((status
& HA_RXMASK
)
414 || (pring
->flag
& LPFC_DEFERRED_RING_EVENT
)) {
415 if (pring
->flag
& LPFC_STOP_IOCB_MASK
) {
416 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
418 lpfc_sli_handle_slow_ring_event(phba
, pring
,
421 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
424 * Turn on Ring interrupts
426 spin_lock_irq(&phba
->hbalock
);
427 control
= readl(phba
->HCregaddr
);
428 if (!(control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
))) {
429 control
|= (HC_R0INT_ENA
<< LPFC_ELS_RING
);
430 writel(control
, phba
->HCregaddr
);
431 readl(phba
->HCregaddr
); /* flush */
433 spin_unlock_irq(&phba
->hbalock
);
435 lpfc_work_list_done(phba
);
439 check_work_wait_done(struct lpfc_hba
*phba
)
441 struct lpfc_vport
*vport
;
442 struct lpfc_sli_ring
*pring
;
445 spin_lock_irq(&phba
->hbalock
);
446 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
447 if (vport
->work_port_events
) {
453 if (phba
->work_ha
|| (!list_empty(&phba
->work_list
)) ||
454 kthread_should_stop()) {
459 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
460 if (pring
->flag
& LPFC_DEFERRED_RING_EVENT
)
466 phba
->work_found
= 0;
468 spin_unlock_irq(&phba
->hbalock
);
474 lpfc_do_work(void *p
)
476 struct lpfc_hba
*phba
= p
;
478 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq
);
480 set_user_nice(current
, -20);
481 phba
->work_wait
= &work_waitq
;
482 phba
->work_found
= 0;
486 rc
= wait_event_interruptible(work_waitq
,
487 check_work_wait_done(phba
));
491 if (kthread_should_stop())
494 lpfc_work_done(phba
);
496 /* If there is alot of slow ring work, like during link up
497 * check_work_wait_done() may cause this thread to not give
498 * up the CPU for very long periods of time. This may cause
499 * soft lockups or other problems. To avoid these situations
500 * give up the CPU here after LPFC_MAX_WORKER_ITERATION
501 * consecutive iterations.
503 if (phba
->work_found
>= LPFC_MAX_WORKER_ITERATION
) {
504 phba
->work_found
= 0;
508 phba
->work_wait
= NULL
;
513 * This is only called to handle FC worker events. Since this a rare
514 * occurance, we allocate a struct lpfc_work_evt structure here instead of
515 * embedding it in the IOCB.
518 lpfc_workq_post_event(struct lpfc_hba
*phba
, void *arg1
, void *arg2
,
521 struct lpfc_work_evt
*evtp
;
525 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
526 * be queued to worker thread for processing
528 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_ATOMIC
);
532 evtp
->evt_arg1
= arg1
;
533 evtp
->evt_arg2
= arg2
;
536 spin_lock_irqsave(&phba
->hbalock
, flags
);
537 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
539 lpfc_worker_wake_up(phba
);
540 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
546 lpfc_cleanup_rpis(struct lpfc_vport
*vport
, int remove
)
548 struct lpfc_hba
*phba
= vport
->phba
;
549 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
552 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
553 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
556 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
)
557 lpfc_unreg_rpi(vport
, ndlp
);
559 /* Leave Fabric nodes alone on link down */
560 if (!remove
&& ndlp
->nlp_type
& NLP_FABRIC
)
562 rc
= lpfc_disc_state_machine(vport
, ndlp
, NULL
,
565 : NLP_EVT_DEVICE_RECOVERY
);
567 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) {
568 lpfc_mbx_unreg_vpi(vport
);
569 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
574 lpfc_linkdown_port(struct lpfc_vport
*vport
)
576 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
577 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
579 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKDOWN
, 0);
581 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
582 "Link Down: state:x%x rtry:x%x flg:x%x",
583 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
585 /* Cleanup any outstanding RSCN activity */
586 lpfc_els_flush_rscn(vport
);
588 /* Cleanup any outstanding ELS commands */
589 lpfc_els_flush_cmd(vport
);
591 lpfc_cleanup_rpis(vport
, 0);
593 /* free any ndlp's on unused list */
594 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
)
595 /* free any ndlp's in unused state */
596 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
597 lpfc_drop_node(vport
, ndlp
);
599 /* Turn off discovery timer if its running */
600 lpfc_can_disctmo(vport
);
604 lpfc_linkdown(struct lpfc_hba
*phba
)
606 struct lpfc_vport
*vport
= phba
->pport
;
607 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
608 struct lpfc_vport
*port_iterator
;
611 if (phba
->link_state
== LPFC_LINK_DOWN
) {
614 spin_lock_irq(&phba
->hbalock
);
615 if (phba
->link_state
> LPFC_LINK_DOWN
) {
616 phba
->link_state
= LPFC_LINK_DOWN
;
617 phba
->pport
->fc_flag
&= ~FC_LBIT
;
619 spin_unlock_irq(&phba
->hbalock
);
621 list_for_each_entry(port_iterator
, &phba
->port_list
, listentry
) {
623 /* Issue a LINK DOWN event to all nodes */
624 lpfc_linkdown_port(port_iterator
);
627 /* Clean up any firmware default rpi's */
628 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
630 lpfc_unreg_did(phba
, 0xffff, 0xffffffff, mb
);
632 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
633 if (lpfc_sli_issue_mbox(phba
, mb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
634 == MBX_NOT_FINISHED
) {
635 mempool_free(mb
, phba
->mbox_mem_pool
);
639 /* Setup myDID for link up if we are in pt2pt mode */
640 if (phba
->pport
->fc_flag
& FC_PT2PT
) {
641 phba
->pport
->fc_myDID
= 0;
642 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
644 lpfc_config_link(phba
, mb
);
645 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
647 if (lpfc_sli_issue_mbox(phba
, mb
,
648 (MBX_NOWAIT
| MBX_STOP_IOCB
))
649 == MBX_NOT_FINISHED
) {
650 mempool_free(mb
, phba
->mbox_mem_pool
);
653 spin_lock_irq(shost
->host_lock
);
654 phba
->pport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
655 spin_unlock_irq(shost
->host_lock
);
662 lpfc_linkup_cleanup_nodes(struct lpfc_vport
*vport
)
664 struct lpfc_nodelist
*ndlp
;
666 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
667 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
670 if (ndlp
->nlp_type
& NLP_FABRIC
) {
671 /* On Linkup its safe to clean up the ndlp
672 * from Fabric connections.
674 if (ndlp
->nlp_DID
!= Fabric_DID
)
675 lpfc_unreg_rpi(vport
, ndlp
);
676 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
677 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
678 /* Fail outstanding IO now since device is
681 lpfc_unreg_rpi(vport
, ndlp
);
687 lpfc_linkup_port(struct lpfc_vport
*vport
)
689 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
690 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
691 struct lpfc_hba
*phba
= vport
->phba
;
693 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
696 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
697 "Link Up: top:x%x speed:x%x flg:x%x",
698 phba
->fc_topology
, phba
->fc_linkspeed
, phba
->link_flag
);
700 /* If NPIV is not enabled, only bring the physical port up */
701 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
702 (vport
!= phba
->pport
))
705 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKUP
, 0);
707 spin_lock_irq(shost
->host_lock
);
708 vport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
709 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
710 vport
->fc_flag
|= FC_NDISC_ACTIVE
;
711 vport
->fc_ns_retry
= 0;
712 spin_unlock_irq(shost
->host_lock
);
714 if (vport
->fc_flag
& FC_LBIT
)
715 lpfc_linkup_cleanup_nodes(vport
);
717 /* free any ndlp's in unused state */
718 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
720 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
721 lpfc_drop_node(vport
, ndlp
);
725 lpfc_linkup(struct lpfc_hba
*phba
)
727 struct lpfc_vport
*vport
;
729 phba
->link_state
= LPFC_LINK_UP
;
731 /* Unblock fabric iocbs if they are blocked */
732 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
733 del_timer_sync(&phba
->fabric_block_timer
);
735 list_for_each_entry(vport
, &phba
->port_list
, listentry
) {
736 lpfc_linkup_port(vport
);
738 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
739 lpfc_issue_clear_la(phba
, phba
->pport
);
745 * This routine handles processing a CLEAR_LA mailbox
746 * command upon completion. It is setup in the LPFC_MBOXQ
747 * as the completion routine when the command is
748 * handed off to the SLI layer.
751 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
753 struct lpfc_vport
*vport
= pmb
->vport
;
754 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
755 struct lpfc_sli
*psli
= &phba
->sli
;
756 MAILBOX_t
*mb
= &pmb
->mb
;
759 /* Since we don't do discovery right now, turn these off here */
760 psli
->ring
[psli
->extra_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
761 psli
->ring
[psli
->fcp_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
762 psli
->ring
[psli
->next_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
764 /* Check for error */
765 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
766 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
767 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
768 "%d (%d):0320 CLEAR_LA mbxStatus error x%x hba "
770 phba
->brd_no
, vport
->vpi
, mb
->mbxStatus
,
773 phba
->link_state
= LPFC_HBA_ERROR
;
777 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
778 phba
->link_state
= LPFC_HBA_READY
;
780 spin_lock_irq(&phba
->hbalock
);
781 psli
->sli_flag
|= LPFC_PROCESS_LA
;
782 control
= readl(phba
->HCregaddr
);
783 control
|= HC_LAINT_ENA
;
784 writel(control
, phba
->HCregaddr
);
785 readl(phba
->HCregaddr
); /* flush */
786 spin_unlock_irq(&phba
->hbalock
);
789 vport
->num_disc_nodes
= 0;
790 /* go thru NPR nodes and issue ELS PLOGIs */
791 if (vport
->fc_npr_cnt
)
792 lpfc_els_disc_plogi(vport
);
794 if (!vport
->num_disc_nodes
) {
795 spin_lock_irq(shost
->host_lock
);
796 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
797 spin_unlock_irq(shost
->host_lock
);
800 vport
->port_state
= LPFC_VPORT_READY
;
803 /* Device Discovery completes */
804 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
805 "%d (%d):0225 Device Discovery completes\n",
806 phba
->brd_no
, vport
->vpi
);
808 mempool_free(pmb
, phba
->mbox_mem_pool
);
810 spin_lock_irq(shost
->host_lock
);
811 vport
->fc_flag
&= ~(FC_ABORT_DISCOVERY
| FC_ESTABLISH_LINK
);
812 spin_unlock_irq(shost
->host_lock
);
814 del_timer_sync(&phba
->fc_estabtmo
);
816 lpfc_can_disctmo(vport
);
818 /* turn on Link Attention interrupts */
820 spin_lock_irq(&phba
->hbalock
);
821 psli
->sli_flag
|= LPFC_PROCESS_LA
;
822 control
= readl(phba
->HCregaddr
);
823 control
|= HC_LAINT_ENA
;
824 writel(control
, phba
->HCregaddr
);
825 readl(phba
->HCregaddr
); /* flush */
826 spin_unlock_irq(&phba
->hbalock
);
833 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
835 struct lpfc_vport
*vport
= pmb
->vport
;
837 if (pmb
->mb
.mbxStatus
)
840 mempool_free(pmb
, phba
->mbox_mem_pool
);
842 if (phba
->fc_topology
== TOPOLOGY_LOOP
&&
843 vport
->fc_flag
& FC_PUBLIC_LOOP
&&
844 !(vport
->fc_flag
& FC_LBIT
)) {
845 /* Need to wait for FAN - use discovery timer
846 * for timeout. port_state is identically
847 * LPFC_LOCAL_CFG_LINK while waiting for FAN
849 lpfc_set_disctmo(vport
);
853 /* Start discovery by sending a FLOGI. port_state is identically
854 * LPFC_FLOGI while waiting for FLOGI cmpl
856 if (vport
->port_state
!= LPFC_FLOGI
) {
857 vport
->port_state
= LPFC_FLOGI
;
858 lpfc_set_disctmo(vport
);
859 lpfc_initial_flogi(vport
);
864 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
865 "%d (%d):0306 CONFIG_LINK mbxStatus error x%x "
867 phba
->brd_no
, vport
->vpi
, pmb
->mb
.mbxStatus
,
870 mempool_free(pmb
, phba
->mbox_mem_pool
);
874 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
875 "%d (%d):0200 CONFIG_LINK bad hba state x%x\n",
876 phba
->brd_no
, vport
->vpi
, vport
->port_state
);
878 lpfc_issue_clear_la(phba
, vport
);
883 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
885 MAILBOX_t
*mb
= &pmb
->mb
;
886 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
887 struct lpfc_vport
*vport
= pmb
->vport
;
890 /* Check for error */
892 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
893 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
894 "%d (%d):0319 READ_SPARAM mbxStatus error x%x "
896 phba
->brd_no
, vport
->vpi
, mb
->mbxStatus
,
903 memcpy((uint8_t *) &vport
->fc_sparam
, (uint8_t *) mp
->virt
,
904 sizeof (struct serv_parm
));
905 if (phba
->cfg_soft_wwnn
)
906 u64_to_wwn(phba
->cfg_soft_wwnn
,
907 vport
->fc_sparam
.nodeName
.u
.wwn
);
908 if (phba
->cfg_soft_wwpn
)
909 u64_to_wwn(phba
->cfg_soft_wwpn
,
910 vport
->fc_sparam
.portName
.u
.wwn
);
911 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
912 sizeof(vport
->fc_nodename
));
913 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
914 sizeof(vport
->fc_portname
));
915 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
916 memcpy(&phba
->wwnn
, &vport
->fc_nodename
, sizeof(phba
->wwnn
));
917 memcpy(&phba
->wwpn
, &vport
->fc_portname
, sizeof(phba
->wwnn
));
920 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
922 mempool_free(pmb
, phba
->mbox_mem_pool
);
926 pmb
->context1
= NULL
;
927 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
929 lpfc_issue_clear_la(phba
, vport
);
930 mempool_free(pmb
, phba
->mbox_mem_pool
);
935 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, READ_LA_VAR
*la
)
937 struct lpfc_vport
*vport
= phba
->pport
;
938 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
;
940 struct lpfc_dmabuf
*mp
;
943 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
944 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
946 spin_lock_irq(&phba
->hbalock
);
947 switch (la
->UlnkSpeed
) {
949 phba
->fc_linkspeed
= LA_1GHZ_LINK
;
952 phba
->fc_linkspeed
= LA_2GHZ_LINK
;
955 phba
->fc_linkspeed
= LA_4GHZ_LINK
;
958 phba
->fc_linkspeed
= LA_8GHZ_LINK
;
961 phba
->fc_linkspeed
= LA_UNKNW_LINK
;
965 phba
->fc_topology
= la
->topology
;
966 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
968 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
969 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
971 /* Get Loop Map information */
973 vport
->fc_flag
|= FC_LBIT
;
975 vport
->fc_myDID
= la
->granted_AL_PA
;
976 i
= la
->un
.lilpBde64
.tus
.f
.bdeSize
;
979 phba
->alpa_map
[0] = 0;
981 if (phba
->cfg_log_verbose
& LOG_LINK_EVENT
) {
992 numalpa
= phba
->alpa_map
[0];
994 while (j
< numalpa
) {
995 memset(un
.pamap
, 0, 16);
996 for (k
= 1; j
< numalpa
; k
++) {
998 phba
->alpa_map
[j
+ 1];
1003 /* Link Up Event ALPA map */
1004 lpfc_printf_log(phba
,
1007 "%d:1304 Link Up Event "
1008 "ALPA map Data: x%x "
1011 un
.pa
.wd1
, un
.pa
.wd2
,
1012 un
.pa
.wd3
, un
.pa
.wd4
);
1017 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)) {
1018 if (phba
->max_vpi
&& phba
->cfg_npiv_enable
&&
1019 (phba
->sli_rev
== 3))
1020 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
1022 vport
->fc_myDID
= phba
->fc_pref_DID
;
1023 vport
->fc_flag
|= FC_LBIT
;
1025 spin_unlock_irq(&phba
->hbalock
);
1029 lpfc_read_sparam(phba
, sparam_mbox
, 0);
1030 sparam_mbox
->vport
= vport
;
1031 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
1032 rc
= lpfc_sli_issue_mbox(phba
, sparam_mbox
,
1033 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1034 if (rc
== MBX_NOT_FINISHED
) {
1035 mp
= (struct lpfc_dmabuf
*) sparam_mbox
->context1
;
1036 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1038 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
1040 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
1046 vport
->port_state
= LPFC_LOCAL_CFG_LINK
;
1047 lpfc_config_link(phba
, cfglink_mbox
);
1048 cfglink_mbox
->vport
= vport
;
1049 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
1050 rc
= lpfc_sli_issue_mbox(phba
, cfglink_mbox
,
1051 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1052 if (rc
!= MBX_NOT_FINISHED
)
1054 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
1057 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1058 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1059 "%d (%d):0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1060 phba
->brd_no
, vport
->vpi
,
1061 vport
->port_state
, sparam_mbox
, cfglink_mbox
);
1063 lpfc_issue_clear_la(phba
, vport
);
1068 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
)
1071 struct lpfc_sli
*psli
= &phba
->sli
;
1073 lpfc_linkdown(phba
);
1075 /* turn on Link Attention interrupts - no CLEAR_LA needed */
1076 spin_lock_irq(&phba
->hbalock
);
1077 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1078 control
= readl(phba
->HCregaddr
);
1079 control
|= HC_LAINT_ENA
;
1080 writel(control
, phba
->HCregaddr
);
1081 readl(phba
->HCregaddr
); /* flush */
1082 spin_unlock_irq(&phba
->hbalock
);
1086 * This routine handles processing a READ_LA mailbox
1087 * command upon completion. It is setup in the LPFC_MBOXQ
1088 * as the completion routine when the command is
1089 * handed off to the SLI layer.
1092 lpfc_mbx_cmpl_read_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1094 struct lpfc_vport
*vport
= pmb
->vport
;
1095 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1097 MAILBOX_t
*mb
= &pmb
->mb
;
1098 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1100 /* Check for error */
1101 if (mb
->mbxStatus
) {
1102 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1103 "%d:1307 READ_LA mbox error x%x state x%x\n",
1104 phba
->brd_no
, mb
->mbxStatus
, vport
->port_state
);
1105 lpfc_mbx_issue_link_down(phba
);
1106 phba
->link_state
= LPFC_HBA_ERROR
;
1107 goto lpfc_mbx_cmpl_read_la_free_mbuf
;
1110 la
= (READ_LA_VAR
*) & pmb
->mb
.un
.varReadLA
;
1112 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
1114 spin_lock_irq(shost
->host_lock
);
1116 vport
->fc_flag
|= FC_BYPASSED_MODE
;
1118 vport
->fc_flag
&= ~FC_BYPASSED_MODE
;
1119 spin_unlock_irq(shost
->host_lock
);
1121 if (((phba
->fc_eventTag
+ 1) < la
->eventTag
) ||
1122 (phba
->fc_eventTag
== la
->eventTag
)) {
1123 phba
->fc_stat
.LinkMultiEvent
++;
1124 if (la
->attType
== AT_LINK_UP
)
1125 if (phba
->fc_eventTag
!= 0)
1126 lpfc_linkdown(phba
);
1129 phba
->fc_eventTag
= la
->eventTag
;
1131 if (la
->attType
== AT_LINK_UP
) {
1132 phba
->fc_stat
.LinkUp
++;
1133 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
1134 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1135 "%d:1306 Link Up Event in loop back mode "
1136 "x%x received Data: x%x x%x x%x x%x\n",
1137 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
1138 la
->granted_AL_PA
, la
->UlnkSpeed
,
1141 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1142 "%d:1303 Link Up Event x%x received "
1143 "Data: x%x x%x x%x x%x\n",
1144 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
1145 la
->granted_AL_PA
, la
->UlnkSpeed
,
1148 lpfc_mbx_process_link_up(phba
, la
);
1150 phba
->fc_stat
.LinkDown
++;
1151 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1152 "%d:1305 Link Down Event x%x received "
1153 "Data: x%x x%x x%x\n",
1154 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
1155 phba
->pport
->port_state
, vport
->fc_flag
);
1156 lpfc_mbx_issue_link_down(phba
);
1159 lpfc_mbx_cmpl_read_la_free_mbuf
:
1160 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1162 mempool_free(pmb
, phba
->mbox_mem_pool
);
1167 * This routine handles processing a REG_LOGIN mailbox
1168 * command upon completion. It is setup in the LPFC_MBOXQ
1169 * as the completion routine when the command is
1170 * handed off to the SLI layer.
1173 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1175 struct lpfc_vport
*vport
= pmb
->vport
;
1176 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1177 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
1179 pmb
->context1
= NULL
;
1181 /* Good status, call state machine */
1182 lpfc_disc_state_machine(vport
, ndlp
, pmb
, NLP_EVT_CMPL_REG_LOGIN
);
1183 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1185 mempool_free(pmb
, phba
->mbox_mem_pool
);
1192 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1194 MAILBOX_t
*mb
= &pmb
->mb
;
1195 struct lpfc_vport
*vport
= pmb
->vport
;
1196 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1198 switch (mb
->mbxStatus
) {
1202 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1203 "%d (%d):0911 cmpl_unreg_vpi, "
1204 "mb status = 0x%x\n",
1205 phba
->brd_no
, vport
->vpi
, mb
->mbxStatus
);
1208 vport
->unreg_vpi_cmpl
= VPORT_OK
;
1209 mempool_free(pmb
, phba
->mbox_mem_pool
);
1211 * This shost reference might have been taken at the beginning of
1212 * lpfc_vport_delete()
1214 if (vport
->load_flag
& FC_UNLOADING
)
1215 scsi_host_put(shost
);
1219 lpfc_mbx_unreg_vpi(struct lpfc_vport
*vport
)
1221 struct lpfc_hba
*phba
= vport
->phba
;
1225 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1229 lpfc_unreg_vpi(phba
, vport
->vpi
, mbox
);
1230 mbox
->vport
= vport
;
1231 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_unreg_vpi
;
1232 rc
= lpfc_sli_issue_mbox(phba
, mbox
, (MBX_NOWAIT
| MBX_STOP_IOCB
));
1233 if (rc
== MBX_NOT_FINISHED
) {
1234 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
1235 "%d (%d):1800 Could not issue unreg_vpi\n",
1236 phba
->brd_no
, vport
->vpi
);
1237 mempool_free(mbox
, phba
->mbox_mem_pool
);
1238 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
1243 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1245 struct lpfc_vport
*vport
= pmb
->vport
;
1246 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1247 MAILBOX_t
*mb
= &pmb
->mb
;
1249 switch (mb
->mbxStatus
) {
1253 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1254 "%d (%d):0912 cmpl_reg_vpi, mb status = 0x%x\n",
1255 phba
->brd_no
, vport
->vpi
, mb
->mbxStatus
);
1256 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1257 spin_lock_irq(shost
->host_lock
);
1258 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
1259 spin_unlock_irq(shost
->host_lock
);
1260 vport
->fc_myDID
= 0;
1264 vport
->num_disc_nodes
= 0;
1265 /* go thru NPR list and issue ELS PLOGIs */
1266 if (vport
->fc_npr_cnt
)
1267 lpfc_els_disc_plogi(vport
);
1269 if (!vport
->num_disc_nodes
) {
1270 spin_lock_irq(shost
->host_lock
);
1271 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1272 spin_unlock_irq(shost
->host_lock
);
1273 lpfc_can_disctmo(vport
);
1275 vport
->port_state
= LPFC_VPORT_READY
;
1278 mempool_free(pmb
, phba
->mbox_mem_pool
);
1283 * This routine handles processing a Fabric REG_LOGIN mailbox
1284 * command upon completion. It is setup in the LPFC_MBOXQ
1285 * as the completion routine when the command is
1286 * handed off to the SLI layer.
1289 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1291 struct lpfc_vport
*vport
= pmb
->vport
;
1292 struct lpfc_vport
*next_vport
;
1293 MAILBOX_t
*mb
= &pmb
->mb
;
1294 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1295 struct lpfc_nodelist
*ndlp
;
1296 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
1298 pmb
->context1
= NULL
;
1299 pmb
->context2
= NULL
;
1301 if (mb
->mbxStatus
) {
1302 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1304 mempool_free(pmb
, phba
->mbox_mem_pool
);
1307 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
1308 /* FLOGI failed, use loop map to make discovery list */
1309 lpfc_disc_list_loopmap(vport
);
1311 /* Start discovery */
1312 lpfc_disc_start(vport
);
1316 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1317 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
1318 "%d (%d):0258 Register Fabric login error: 0x%x\n",
1319 phba
->brd_no
, vport
->vpi
, mb
->mbxStatus
);
1324 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
1325 ndlp
->nlp_type
|= NLP_FABRIC
;
1326 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
1328 lpfc_nlp_put(ndlp
); /* Drop the reference from the mbox */
1330 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
1331 list_for_each_entry(next_vport
, &phba
->port_list
, listentry
) {
1332 if (next_vport
->port_type
== LPFC_PHYSICAL_PORT
)
1335 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
1336 lpfc_initial_fdisc(next_vport
);
1337 else if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) {
1338 lpfc_vport_set_state(vport
,
1339 FC_VPORT_NO_FABRIC_SUPP
);
1340 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
1341 "%d (%d):0259 No NPIV Fabric "
1343 phba
->brd_no
, vport
->vpi
);
1346 lpfc_do_scr_ns_plogi(phba
, vport
);
1349 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1351 mempool_free(pmb
, phba
->mbox_mem_pool
);
1356 * This routine handles processing a NameServer REG_LOGIN mailbox
1357 * command upon completion. It is setup in the LPFC_MBOXQ
1358 * as the completion routine when the command is
1359 * handed off to the SLI layer.
1362 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1364 MAILBOX_t
*mb
= &pmb
->mb
;
1365 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1366 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
1367 struct lpfc_vport
*vport
= pmb
->vport
;
1369 if (mb
->mbxStatus
) {
1372 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1374 mempool_free(pmb
, phba
->mbox_mem_pool
);
1375 lpfc_drop_node(vport
, ndlp
);
1377 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
1379 * RegLogin failed, use loop map to make discovery
1382 lpfc_disc_list_loopmap(vport
);
1384 /* Start discovery */
1385 lpfc_disc_start(vport
);
1388 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1389 lpfc_printf_log(phba
, KERN_ERR
, LOG_ELS
,
1390 "%d (%d):0260 Register NameServer error: 0x%x\n",
1391 phba
->brd_no
, vport
->vpi
, mb
->mbxStatus
);
1395 pmb
->context1
= NULL
;
1397 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
1398 ndlp
->nlp_type
|= NLP_FABRIC
;
1399 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
1401 if (vport
->port_state
< LPFC_VPORT_READY
) {
1402 /* Link up discovery requires Fabric registration. */
1403 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0, 0); /* Do this first! */
1404 lpfc_ns_cmd(vport
, SLI_CTNS_RNN_ID
, 0, 0);
1405 lpfc_ns_cmd(vport
, SLI_CTNS_RSNN_NN
, 0, 0);
1406 lpfc_ns_cmd(vport
, SLI_CTNS_RSPN_ID
, 0, 0);
1407 lpfc_ns_cmd(vport
, SLI_CTNS_RFT_ID
, 0, 0);
1409 /* Issue SCR just before NameServer GID_FT Query */
1410 lpfc_issue_els_scr(vport
, SCR_DID
, 0);
1413 vport
->fc_ns_retry
= 0;
1414 /* Good status, issue CT Request to NameServer */
1415 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0)) {
1416 /* Cannot issue NameServer Query, so finish up discovery */
1421 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1423 mempool_free(pmb
, phba
->mbox_mem_pool
);
1429 lpfc_register_remote_port(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1431 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1432 struct fc_rport
*rport
;
1433 struct lpfc_rport_data
*rdata
;
1434 struct fc_rport_identifiers rport_ids
;
1435 struct lpfc_hba
*phba
= vport
->phba
;
1437 /* Remote port has reappeared. Re-register w/ FC transport */
1438 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
1439 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
1440 rport_ids
.port_id
= ndlp
->nlp_DID
;
1441 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
1444 * We leave our node pointer in rport->dd_data when we unregister a
1445 * FCP target port. But fc_remote_port_add zeros the space to which
1446 * rport->dd_data points. So, if we're reusing a previously
1447 * registered port, drop the reference that we took the last time we
1448 * registered the port.
1450 if (ndlp
->rport
&& ndlp
->rport
->dd_data
&&
1451 ((struct lpfc_rport_data
*) ndlp
->rport
->dd_data
)->pnode
== ndlp
) {
1455 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
1456 "rport add: did:x%x flg:x%x type x%x",
1457 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
1459 ndlp
->rport
= rport
= fc_remote_port_add(shost
, 0, &rport_ids
);
1460 if (!rport
|| !get_device(&rport
->dev
)) {
1461 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
1462 "Warning: fc_remote_port_add failed\n");
1466 /* initialize static port data */
1467 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
1468 rport
->supported_classes
= ndlp
->nlp_class_sup
;
1469 rdata
= rport
->dd_data
;
1470 rdata
->pnode
= lpfc_nlp_get(ndlp
);
1472 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
1473 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
1474 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
1475 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
1478 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
1479 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
1481 if ((rport
->scsi_target_id
!= -1) &&
1482 (rport
->scsi_target_id
< LPFC_MAX_TARGET
)) {
1483 ndlp
->nlp_sid
= rport
->scsi_target_id
;
1489 lpfc_unregister_remote_port(struct lpfc_nodelist
*ndlp
)
1491 struct fc_rport
*rport
= ndlp
->rport
;
1493 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
1494 "rport delete: did:x%x flg:x%x type x%x",
1495 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
1497 fc_remote_port_delete(rport
);
1503 lpfc_nlp_counters(struct lpfc_vport
*vport
, int state
, int count
)
1505 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1507 spin_lock_irq(shost
->host_lock
);
1509 case NLP_STE_UNUSED_NODE
:
1510 vport
->fc_unused_cnt
+= count
;
1512 case NLP_STE_PLOGI_ISSUE
:
1513 vport
->fc_plogi_cnt
+= count
;
1515 case NLP_STE_ADISC_ISSUE
:
1516 vport
->fc_adisc_cnt
+= count
;
1518 case NLP_STE_REG_LOGIN_ISSUE
:
1519 vport
->fc_reglogin_cnt
+= count
;
1521 case NLP_STE_PRLI_ISSUE
:
1522 vport
->fc_prli_cnt
+= count
;
1524 case NLP_STE_UNMAPPED_NODE
:
1525 vport
->fc_unmap_cnt
+= count
;
1527 case NLP_STE_MAPPED_NODE
:
1528 vport
->fc_map_cnt
+= count
;
1530 case NLP_STE_NPR_NODE
:
1531 vport
->fc_npr_cnt
+= count
;
1534 spin_unlock_irq(shost
->host_lock
);
1538 lpfc_nlp_state_cleanup(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1539 int old_state
, int new_state
)
1541 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1543 if (new_state
== NLP_STE_UNMAPPED_NODE
) {
1544 ndlp
->nlp_type
&= ~(NLP_FCP_TARGET
| NLP_FCP_INITIATOR
);
1545 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
1546 ndlp
->nlp_type
|= NLP_FC_NODE
;
1548 if (new_state
== NLP_STE_MAPPED_NODE
)
1549 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
1550 if (new_state
== NLP_STE_NPR_NODE
)
1551 ndlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
1553 /* Transport interface */
1554 if (ndlp
->rport
&& (old_state
== NLP_STE_MAPPED_NODE
||
1555 old_state
== NLP_STE_UNMAPPED_NODE
)) {
1556 vport
->phba
->nport_event_cnt
++;
1557 lpfc_unregister_remote_port(ndlp
);
1560 if (new_state
== NLP_STE_MAPPED_NODE
||
1561 new_state
== NLP_STE_UNMAPPED_NODE
) {
1562 vport
->phba
->nport_event_cnt
++;
1564 * Tell the fc transport about the port, if we haven't
1565 * already. If we have, and it's a scsi entity, be
1566 * sure to unblock any attached scsi devices
1568 lpfc_register_remote_port(vport
, ndlp
);
1571 * if we added to Mapped list, but the remote port
1572 * registration failed or assigned a target id outside
1573 * our presentable range - move the node to the
1576 if (new_state
== NLP_STE_MAPPED_NODE
&&
1578 ndlp
->rport
->scsi_target_id
== -1 ||
1579 ndlp
->rport
->scsi_target_id
>= LPFC_MAX_TARGET
)) {
1580 spin_lock_irq(shost
->host_lock
);
1581 ndlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
1582 spin_unlock_irq(shost
->host_lock
);
1583 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
1588 lpfc_nlp_state_name(char *buffer
, size_t size
, int state
)
1590 static char *states
[] = {
1591 [NLP_STE_UNUSED_NODE
] = "UNUSED",
1592 [NLP_STE_PLOGI_ISSUE
] = "PLOGI",
1593 [NLP_STE_ADISC_ISSUE
] = "ADISC",
1594 [NLP_STE_REG_LOGIN_ISSUE
] = "REGLOGIN",
1595 [NLP_STE_PRLI_ISSUE
] = "PRLI",
1596 [NLP_STE_UNMAPPED_NODE
] = "UNMAPPED",
1597 [NLP_STE_MAPPED_NODE
] = "MAPPED",
1598 [NLP_STE_NPR_NODE
] = "NPR",
1601 if (state
< ARRAY_SIZE(states
) && states
[state
])
1602 strlcpy(buffer
, states
[state
], size
);
1604 snprintf(buffer
, size
, "unknown (%d)", state
);
1609 lpfc_nlp_set_state(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1612 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1613 int old_state
= ndlp
->nlp_state
;
1614 char name1
[16], name2
[16];
1616 lpfc_printf_log(vport
->phba
, KERN_INFO
, LOG_NODE
,
1617 "%d (%d):0904 NPort state transition x%06x, %s -> %s\n",
1618 vport
->phba
->brd_no
, vport
->vpi
,
1620 lpfc_nlp_state_name(name1
, sizeof(name1
), old_state
),
1621 lpfc_nlp_state_name(name2
, sizeof(name2
), state
));
1623 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
1624 "node statechg did:x%x old:%d ste:%d",
1625 ndlp
->nlp_DID
, old_state
, state
);
1627 if (old_state
== NLP_STE_NPR_NODE
&&
1628 (ndlp
->nlp_flag
& NLP_DELAY_TMO
) != 0 &&
1629 state
!= NLP_STE_NPR_NODE
)
1630 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
1631 if (old_state
== NLP_STE_UNMAPPED_NODE
) {
1632 ndlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
1633 ndlp
->nlp_type
&= ~NLP_FC_NODE
;
1636 if (list_empty(&ndlp
->nlp_listp
)) {
1637 spin_lock_irq(shost
->host_lock
);
1638 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
1639 spin_unlock_irq(shost
->host_lock
);
1640 } else if (old_state
)
1641 lpfc_nlp_counters(vport
, old_state
, -1);
1643 ndlp
->nlp_state
= state
;
1644 lpfc_nlp_counters(vport
, state
, 1);
1645 lpfc_nlp_state_cleanup(vport
, ndlp
, old_state
, state
);
1649 lpfc_dequeue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1651 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1653 if ((ndlp
->nlp_flag
& NLP_DELAY_TMO
) != 0)
1654 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
1655 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
1656 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
1657 spin_lock_irq(shost
->host_lock
);
1658 list_del_init(&ndlp
->nlp_listp
);
1659 spin_unlock_irq(shost
->host_lock
);
1660 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
1661 NLP_STE_UNUSED_NODE
);
1665 lpfc_drop_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1667 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1669 if ((ndlp
->nlp_flag
& NLP_DELAY_TMO
) != 0)
1670 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
1671 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
1672 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
1673 spin_lock_irq(shost
->host_lock
);
1674 list_del_init(&ndlp
->nlp_listp
);
1675 ndlp
->nlp_flag
&= ~NLP_TARGET_REMOVE
;
1676 spin_unlock_irq(shost
->host_lock
);
1681 * Start / ReStart rescue timer for Discovery / RSCN handling
1684 lpfc_set_disctmo(struct lpfc_vport
*vport
)
1686 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1687 struct lpfc_hba
*phba
= vport
->phba
;
1690 if (vport
->port_state
== LPFC_LOCAL_CFG_LINK
) {
1691 /* For FAN, timeout should be greater then edtov */
1692 tmo
= (((phba
->fc_edtov
+ 999) / 1000) + 1);
1694 /* Normal discovery timeout should be > then ELS/CT timeout
1695 * FC spec states we need 3 * ratov for CT requests
1697 tmo
= ((phba
->fc_ratov
* 3) + 3);
1701 if (!timer_pending(&vport
->fc_disctmo
)) {
1702 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1703 "set disc timer: tmo:x%x state:x%x flg:x%x",
1704 tmo
, vport
->port_state
, vport
->fc_flag
);
1707 mod_timer(&vport
->fc_disctmo
, jiffies
+ HZ
* tmo
);
1708 spin_lock_irq(shost
->host_lock
);
1709 vport
->fc_flag
|= FC_DISC_TMO
;
1710 spin_unlock_irq(shost
->host_lock
);
1712 /* Start Discovery Timer state <hba_state> */
1713 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1714 "%d (%d):0247 Start Discovery Timer state x%x "
1715 "Data: x%x x%lx x%x x%x\n",
1716 phba
->brd_no
, vport
->vpi
, vport
->port_state
, tmo
,
1717 (unsigned long)&vport
->fc_disctmo
, vport
->fc_plogi_cnt
,
1718 vport
->fc_adisc_cnt
);
1724 * Cancel rescue timer for Discovery / RSCN handling
1727 lpfc_can_disctmo(struct lpfc_vport
*vport
)
1729 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1730 struct lpfc_hba
*phba
= vport
->phba
;
1731 unsigned long iflags
;
1733 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1734 "can disc timer: state:x%x rtry:x%x flg:x%x",
1735 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
1737 /* Turn off discovery timer if its running */
1738 if (vport
->fc_flag
& FC_DISC_TMO
) {
1739 spin_lock_irqsave(shost
->host_lock
, iflags
);
1740 vport
->fc_flag
&= ~FC_DISC_TMO
;
1741 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
1742 del_timer_sync(&vport
->fc_disctmo
);
1743 spin_lock_irqsave(&vport
->work_port_lock
, iflags
);
1744 vport
->work_port_events
&= ~WORKER_DISC_TMO
;
1745 spin_unlock_irqrestore(&vport
->work_port_lock
, iflags
);
1748 /* Cancel Discovery Timer state <hba_state> */
1749 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1750 "%d (%d):0248 Cancel Discovery Timer state x%x "
1751 "Data: x%x x%x x%x\n",
1752 phba
->brd_no
, vport
->vpi
, vport
->port_state
,
1753 vport
->fc_flag
, vport
->fc_plogi_cnt
,
1754 vport
->fc_adisc_cnt
);
1760 * Check specified ring for outstanding IOCB on the SLI queue
1761 * Return true if iocb matches the specified nport
1764 lpfc_check_sli_ndlp(struct lpfc_hba
*phba
,
1765 struct lpfc_sli_ring
*pring
,
1766 struct lpfc_iocbq
*iocb
,
1767 struct lpfc_nodelist
*ndlp
)
1769 struct lpfc_sli
*psli
= &phba
->sli
;
1770 IOCB_t
*icmd
= &iocb
->iocb
;
1771 struct lpfc_vport
*vport
= ndlp
->vport
;
1773 if (iocb
->vport
!= vport
)
1776 if (pring
->ringno
== LPFC_ELS_RING
) {
1777 switch (icmd
->ulpCommand
) {
1778 case CMD_GEN_REQUEST64_CR
:
1779 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
)
1781 case CMD_ELS_REQUEST64_CR
:
1782 if (icmd
->un
.elsreq64
.remoteID
== ndlp
->nlp_DID
)
1784 case CMD_XMIT_ELS_RSP64_CX
:
1785 if (iocb
->context1
== (uint8_t *) ndlp
)
1788 } else if (pring
->ringno
== psli
->extra_ring
) {
1790 } else if (pring
->ringno
== psli
->fcp_ring
) {
1791 /* Skip match check if waiting to relogin to FCP target */
1792 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
1793 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
1796 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
1799 } else if (pring
->ringno
== psli
->next_ring
) {
1806 * Free resources / clean up outstanding I/Os
1807 * associated with nlp_rpi in the LPFC_NODELIST entry.
1810 lpfc_no_rpi(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
1812 LIST_HEAD(completions
);
1813 struct lpfc_sli
*psli
;
1814 struct lpfc_sli_ring
*pring
;
1815 struct lpfc_iocbq
*iocb
, *next_iocb
;
1819 lpfc_fabric_abort_nport(ndlp
);
1822 * Everything that matches on txcmplq will be returned
1823 * by firmware with a no rpi error.
1826 rpi
= ndlp
->nlp_rpi
;
1828 /* Now process each ring */
1829 for (i
= 0; i
< psli
->num_rings
; i
++) {
1830 pring
= &psli
->ring
[i
];
1832 spin_lock_irq(&phba
->hbalock
);
1833 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
,
1836 * Check to see if iocb matches the nport we are
1839 if ((lpfc_check_sli_ndlp(phba
, pring
, iocb
,
1841 /* It matches, so deque and call compl
1843 list_move_tail(&iocb
->list
,
1848 spin_unlock_irq(&phba
->hbalock
);
1852 while (!list_empty(&completions
)) {
1853 iocb
= list_get_first(&completions
, struct lpfc_iocbq
, list
);
1854 list_del_init(&iocb
->list
);
1856 if (!iocb
->iocb_cmpl
)
1857 lpfc_sli_release_iocbq(phba
, iocb
);
1860 icmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
1861 icmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
1862 (iocb
->iocb_cmpl
)(phba
, iocb
, iocb
);
1870 * Free rpi associated with LPFC_NODELIST entry.
1871 * This routine is called from lpfc_freenode(), when we are removing
1872 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1873 * LOGO that completes successfully, and we are waiting to PLOGI back
1874 * to the remote NPort. In addition, it is called after we receive
1875 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1876 * we are waiting to PLOGI back to the remote NPort.
1879 lpfc_unreg_rpi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1881 struct lpfc_hba
*phba
= vport
->phba
;
1885 if (ndlp
->nlp_rpi
) {
1886 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1888 lpfc_unreg_login(phba
, vport
->vpi
, ndlp
->nlp_rpi
, mbox
);
1889 mbox
->vport
= vport
;
1890 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1891 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
1892 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1893 if (rc
== MBX_NOT_FINISHED
)
1894 mempool_free(mbox
, phba
->mbox_mem_pool
);
1896 lpfc_no_rpi(phba
, ndlp
);
1904 lpfc_unreg_all_rpis(struct lpfc_vport
*vport
)
1906 struct lpfc_hba
*phba
= vport
->phba
;
1910 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1912 lpfc_unreg_login(phba
, vport
->vpi
, 0xffff, mbox
);
1913 mbox
->vport
= vport
;
1914 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1915 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
1916 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1917 if (rc
== MBX_NOT_FINISHED
) {
1918 mempool_free(mbox
, phba
->mbox_mem_pool
);
1924 lpfc_unreg_default_rpis(struct lpfc_vport
*vport
)
1926 struct lpfc_hba
*phba
= vport
->phba
;
1930 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1932 lpfc_unreg_did(phba
, vport
->vpi
, 0xffffffff, mbox
);
1933 mbox
->vport
= vport
;
1934 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1935 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
1936 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1937 if (rc
== MBX_NOT_FINISHED
) {
1938 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
1939 "%d (%d):1815 Could not issue "
1940 "unreg_did (default rpis)\n",
1941 phba
->brd_no
, vport
->vpi
);
1942 mempool_free(mbox
, phba
->mbox_mem_pool
);
1948 * Free resources associated with LPFC_NODELIST entry
1949 * so it can be freed.
1952 lpfc_cleanup_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1954 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1955 struct lpfc_hba
*phba
= vport
->phba
;
1956 LPFC_MBOXQ_t
*mb
, *nextmb
;
1957 struct lpfc_dmabuf
*mp
;
1959 /* Cleanup node for NPort <nlp_DID> */
1960 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1961 "%d (%d):0900 Cleanup node for NPort x%x "
1962 "Data: x%x x%x x%x\n",
1963 phba
->brd_no
, vport
->vpi
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
1964 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
1966 lpfc_dequeue_node(vport
, ndlp
);
1968 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1969 if ((mb
= phba
->sli
.mbox_active
)) {
1970 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
1971 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
1972 mb
->context2
= NULL
;
1973 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1977 spin_lock_irq(&phba
->hbalock
);
1978 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
1979 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
1980 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
1981 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
1983 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1986 list_del(&mb
->list
);
1987 mempool_free(mb
, phba
->mbox_mem_pool
);
1991 spin_unlock_irq(&phba
->hbalock
);
1993 lpfc_els_abort(phba
,ndlp
);
1994 spin_lock_irq(shost
->host_lock
);
1995 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
1996 spin_unlock_irq(shost
->host_lock
);
1998 ndlp
->nlp_last_elscmd
= 0;
1999 del_timer_sync(&ndlp
->nlp_delayfunc
);
2001 if (!list_empty(&ndlp
->els_retry_evt
.evt_listp
))
2002 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
2003 if (!list_empty(&ndlp
->dev_loss_evt
.evt_listp
))
2004 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
2006 if (!list_empty(&ndlp
->dev_loss_evt
.evt_listp
)) {
2007 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
2008 complete((struct completion
*)(ndlp
->dev_loss_evt
.evt_arg2
));
2011 lpfc_unreg_rpi(vport
, ndlp
);
2017 * Check to see if we can free the nlp back to the freelist.
2018 * If we are in the middle of using the nlp in the discovery state
2019 * machine, defer the free till we reach the end of the state machine.
2022 lpfc_nlp_remove(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
2024 struct lpfc_rport_data
*rdata
;
2026 if (ndlp
->nlp_flag
& NLP_DELAY_TMO
) {
2027 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2030 lpfc_cleanup_node(vport
, ndlp
);
2033 * We can get here with a non-NULL ndlp->rport because when we
2034 * unregister a rport we don't break the rport/node linkage. So if we
2035 * do, make sure we don't leaving any dangling pointers behind.
2038 rdata
= ndlp
->rport
->dd_data
;
2039 rdata
->pnode
= NULL
;
2045 lpfc_matchdid(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2048 D_ID mydid
, ndlpdid
, matchdid
;
2050 if (did
== Bcast_DID
)
2053 if (ndlp
->nlp_DID
== 0) {
2057 /* First check for Direct match */
2058 if (ndlp
->nlp_DID
== did
)
2061 /* Next check for area/domain identically equals 0 match */
2062 mydid
.un
.word
= vport
->fc_myDID
;
2063 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
2067 matchdid
.un
.word
= did
;
2068 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
2069 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
2070 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
2071 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
2072 if ((ndlpdid
.un
.b
.domain
== 0) &&
2073 (ndlpdid
.un
.b
.area
== 0)) {
2074 if (ndlpdid
.un
.b
.id
)
2080 matchdid
.un
.word
= ndlp
->nlp_DID
;
2081 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
2082 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
2083 if ((matchdid
.un
.b
.domain
== 0) &&
2084 (matchdid
.un
.b
.area
== 0)) {
2085 if (matchdid
.un
.b
.id
)
2093 /* Search for a nodelist entry */
2094 static struct lpfc_nodelist
*
2095 __lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
2097 struct lpfc_hba
*phba
= vport
->phba
;
2098 struct lpfc_nodelist
*ndlp
;
2101 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2102 if (lpfc_matchdid(vport
, ndlp
, did
)) {
2103 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
2104 ((uint32_t) ndlp
->nlp_xri
<< 16) |
2105 ((uint32_t) ndlp
->nlp_type
<< 8) |
2106 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
2107 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
2108 "%d (%d):0929 FIND node DID "
2109 " Data: x%p x%x x%x x%x\n",
2110 phba
->brd_no
, vport
->vpi
,
2111 ndlp
, ndlp
->nlp_DID
,
2112 ndlp
->nlp_flag
, data1
);
2117 /* FIND node did <did> NOT FOUND */
2118 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
2119 "%d (%d):0932 FIND node did x%x NOT FOUND.\n",
2120 phba
->brd_no
, vport
->vpi
, did
);
2124 struct lpfc_nodelist
*
2125 lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
2127 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2128 struct lpfc_nodelist
*ndlp
;
2130 spin_lock_irq(shost
->host_lock
);
2131 ndlp
= __lpfc_findnode_did(vport
, did
);
2132 spin_unlock_irq(shost
->host_lock
);
2136 struct lpfc_nodelist
*
2137 lpfc_setup_disc_node(struct lpfc_vport
*vport
, uint32_t did
)
2139 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2140 struct lpfc_nodelist
*ndlp
;
2142 ndlp
= lpfc_findnode_did(vport
, did
);
2144 if ((vport
->fc_flag
& FC_RSCN_MODE
) != 0 &&
2145 lpfc_rscn_payload_check(vport
, did
) == 0)
2147 ndlp
= (struct lpfc_nodelist
*)
2148 mempool_alloc(vport
->phba
->nlp_mem_pool
, GFP_KERNEL
);
2151 lpfc_nlp_init(vport
, ndlp
, did
);
2152 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
2153 spin_lock_irq(shost
->host_lock
);
2154 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2155 spin_unlock_irq(shost
->host_lock
);
2158 if (vport
->fc_flag
& FC_RSCN_MODE
) {
2159 if (lpfc_rscn_payload_check(vport
, did
)) {
2160 spin_lock_irq(shost
->host_lock
);
2161 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2162 spin_unlock_irq(shost
->host_lock
);
2164 /* Since this node is marked for discovery,
2165 * delay timeout is not needed.
2167 if (ndlp
->nlp_flag
& NLP_DELAY_TMO
)
2168 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2172 if (ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
||
2173 ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
)
2175 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
2176 spin_lock_irq(shost
->host_lock
);
2177 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2178 spin_unlock_irq(shost
->host_lock
);
2183 /* Build a list of nodes to discover based on the loopmap */
2185 lpfc_disc_list_loopmap(struct lpfc_vport
*vport
)
2187 struct lpfc_hba
*phba
= vport
->phba
;
2189 uint32_t alpa
, index
;
2191 if (!lpfc_is_link_up(phba
))
2194 if (phba
->fc_topology
!= TOPOLOGY_LOOP
)
2197 /* Check for loop map present or not */
2198 if (phba
->alpa_map
[0]) {
2199 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
2200 alpa
= phba
->alpa_map
[j
];
2201 if (((vport
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0))
2203 lpfc_setup_disc_node(vport
, alpa
);
2206 /* No alpamap, so try all alpa's */
2207 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
2208 /* If cfg_scan_down is set, start from highest
2209 * ALPA (0xef) to lowest (0x1).
2211 if (phba
->cfg_scan_down
)
2214 index
= FC_MAXLOOP
- j
- 1;
2215 alpa
= lpfcAlpaArray
[index
];
2216 if ((vport
->fc_myDID
& 0xff) == alpa
)
2218 lpfc_setup_disc_node(vport
, alpa
);
2225 lpfc_issue_clear_la(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
2228 struct lpfc_sli
*psli
= &phba
->sli
;
2229 struct lpfc_sli_ring
*extra_ring
= &psli
->ring
[psli
->extra_ring
];
2230 struct lpfc_sli_ring
*fcp_ring
= &psli
->ring
[psli
->fcp_ring
];
2231 struct lpfc_sli_ring
*next_ring
= &psli
->ring
[psli
->next_ring
];
2235 * if it's not a physical port or if we already send
2236 * clear_la then don't send it.
2238 if ((phba
->link_state
>= LPFC_CLEAR_LA
) ||
2239 (vport
->port_type
!= LPFC_PHYSICAL_PORT
))
2242 /* Link up discovery */
2243 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
)) != NULL
) {
2244 phba
->link_state
= LPFC_CLEAR_LA
;
2245 lpfc_clear_la(phba
, mbox
);
2246 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
2247 mbox
->vport
= vport
;
2248 rc
= lpfc_sli_issue_mbox(phba
, mbox
, (MBX_NOWAIT
|
2250 if (rc
== MBX_NOT_FINISHED
) {
2251 mempool_free(mbox
, phba
->mbox_mem_pool
);
2252 lpfc_disc_flush_list(vport
);
2253 extra_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
2254 fcp_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
2255 next_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
2256 phba
->link_state
= LPFC_HBA_ERROR
;
2261 /* Reg_vpi to tell firmware to resume normal operations */
2263 lpfc_issue_reg_vpi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
2265 LPFC_MBOXQ_t
*regvpimbox
;
2267 regvpimbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2269 lpfc_reg_vpi(phba
, vport
->vpi
, vport
->fc_myDID
, regvpimbox
);
2270 regvpimbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vpi
;
2271 regvpimbox
->vport
= vport
;
2272 if (lpfc_sli_issue_mbox(phba
, regvpimbox
,
2273 (MBX_NOWAIT
| MBX_STOP_IOCB
))
2274 == MBX_NOT_FINISHED
) {
2275 mempool_free(regvpimbox
, phba
->mbox_mem_pool
);
2280 /* Start Link up / RSCN discovery on NPR nodes */
2282 lpfc_disc_start(struct lpfc_vport
*vport
)
2284 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2285 struct lpfc_hba
*phba
= vport
->phba
;
2287 uint32_t clear_la_pending
;
2290 if (!lpfc_is_link_up(phba
))
2293 if (phba
->link_state
== LPFC_CLEAR_LA
)
2294 clear_la_pending
= 1;
2296 clear_la_pending
= 0;
2298 if (vport
->port_state
< LPFC_VPORT_READY
)
2299 vport
->port_state
= LPFC_DISC_AUTH
;
2301 lpfc_set_disctmo(vport
);
2303 if (vport
->fc_prevDID
== vport
->fc_myDID
)
2308 vport
->fc_prevDID
= vport
->fc_myDID
;
2309 vport
->num_disc_nodes
= 0;
2311 /* Start Discovery state <hba_state> */
2312 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
2313 "%d (%d):0202 Start Discovery hba state x%x "
2314 "Data: x%x x%x x%x\n",
2315 phba
->brd_no
, vport
->vpi
, vport
->port_state
,
2316 vport
->fc_flag
, vport
->fc_plogi_cnt
,
2317 vport
->fc_adisc_cnt
);
2319 /* First do ADISCs - if any */
2320 num_sent
= lpfc_els_disc_adisc(vport
);
2326 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2327 * continue discovery.
2329 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2330 !(vport
->fc_flag
& FC_RSCN_MODE
)) {
2331 lpfc_issue_reg_vpi(phba
, vport
);
2336 * For SLI2, we need to set port_state to READY and continue
2339 if (vport
->port_state
< LPFC_VPORT_READY
&& !clear_la_pending
) {
2340 /* If we get here, there is nothing to ADISC */
2341 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
2342 lpfc_issue_clear_la(phba
, vport
);
2344 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2345 vport
->num_disc_nodes
= 0;
2346 /* go thru NPR nodes and issue ELS PLOGIs */
2347 if (vport
->fc_npr_cnt
)
2348 lpfc_els_disc_plogi(vport
);
2350 if (!vport
->num_disc_nodes
) {
2351 spin_lock_irq(shost
->host_lock
);
2352 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2353 spin_unlock_irq(shost
->host_lock
);
2354 lpfc_can_disctmo(vport
);
2357 vport
->port_state
= LPFC_VPORT_READY
;
2359 /* Next do PLOGIs - if any */
2360 num_sent
= lpfc_els_disc_plogi(vport
);
2365 if (vport
->fc_flag
& FC_RSCN_MODE
) {
2366 /* Check to see if more RSCNs came in while we
2367 * were processing this one.
2369 if ((vport
->fc_rscn_id_cnt
== 0) &&
2370 (!(vport
->fc_flag
& FC_RSCN_DISCOVERY
))) {
2371 spin_lock_irq(shost
->host_lock
);
2372 vport
->fc_flag
&= ~FC_RSCN_MODE
;
2373 spin_unlock_irq(shost
->host_lock
);
2374 lpfc_can_disctmo(vport
);
2376 lpfc_els_handle_rscn(vport
);
2383 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2384 * ring the match the sppecified nodelist.
2387 lpfc_free_tx(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
2389 LIST_HEAD(completions
);
2390 struct lpfc_sli
*psli
;
2392 struct lpfc_iocbq
*iocb
, *next_iocb
;
2393 struct lpfc_sli_ring
*pring
;
2396 pring
= &psli
->ring
[LPFC_ELS_RING
];
2398 /* Error matching iocb on txq or txcmplq
2399 * First check the txq.
2401 spin_lock_irq(&phba
->hbalock
);
2402 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
2403 if (iocb
->context1
!= ndlp
) {
2407 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
2408 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
2410 list_move_tail(&iocb
->list
, &completions
);
2415 /* Next check the txcmplq */
2416 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
2417 if (iocb
->context1
!= ndlp
) {
2421 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
||
2422 icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
) {
2423 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
2426 spin_unlock_irq(&phba
->hbalock
);
2428 while (!list_empty(&completions
)) {
2429 iocb
= list_get_first(&completions
, struct lpfc_iocbq
, list
);
2430 list_del_init(&iocb
->list
);
2432 if (!iocb
->iocb_cmpl
)
2433 lpfc_sli_release_iocbq(phba
, iocb
);
2436 icmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
2437 icmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
2438 (iocb
->iocb_cmpl
) (phba
, iocb
, iocb
);
2444 lpfc_disc_flush_list(struct lpfc_vport
*vport
)
2446 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2447 struct lpfc_hba
*phba
= vport
->phba
;
2449 if (vport
->fc_plogi_cnt
|| vport
->fc_adisc_cnt
) {
2450 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
2452 if (ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
2453 ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
) {
2454 lpfc_free_tx(phba
, ndlp
);
2462 lpfc_cleanup_discovery_resources(struct lpfc_vport
*vport
)
2464 lpfc_els_flush_rscn(vport
);
2465 lpfc_els_flush_cmd(vport
);
2466 lpfc_disc_flush_list(vport
);
2469 /*****************************************************************************/
2471 * NAME: lpfc_disc_timeout
2473 * FUNCTION: Fibre Channel driver discovery timeout routine.
2475 * EXECUTION ENVIRONMENT: interrupt only
2483 /*****************************************************************************/
2485 lpfc_disc_timeout(unsigned long ptr
)
2487 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
2488 struct lpfc_hba
*phba
= vport
->phba
;
2489 unsigned long flags
= 0;
2491 if (unlikely(!phba
))
2494 if ((vport
->work_port_events
& WORKER_DISC_TMO
) == 0) {
2495 spin_lock_irqsave(&vport
->work_port_lock
, flags
);
2496 vport
->work_port_events
|= WORKER_DISC_TMO
;
2497 spin_unlock_irqrestore(&vport
->work_port_lock
, flags
);
2499 spin_lock_irqsave(&phba
->hbalock
, flags
);
2500 if (phba
->work_wait
)
2501 lpfc_worker_wake_up(phba
);
2502 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2508 lpfc_disc_timeout_handler(struct lpfc_vport
*vport
)
2510 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2511 struct lpfc_hba
*phba
= vport
->phba
;
2512 struct lpfc_sli
*psli
= &phba
->sli
;
2513 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2514 LPFC_MBOXQ_t
*initlinkmbox
;
2515 int rc
, clrlaerr
= 0;
2517 if (!(vport
->fc_flag
& FC_DISC_TMO
))
2520 spin_lock_irq(shost
->host_lock
);
2521 vport
->fc_flag
&= ~FC_DISC_TMO
;
2522 spin_unlock_irq(shost
->host_lock
);
2524 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2525 "disc timeout: state:x%x rtry:x%x flg:x%x",
2526 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
2528 switch (vport
->port_state
) {
2530 case LPFC_LOCAL_CFG_LINK
:
2531 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2535 lpfc_printf_log(phba
, KERN_WARNING
, LOG_DISCOVERY
,
2536 "%d (%d):0221 FAN timeout\n",
2537 phba
->brd_no
, vport
->vpi
);
2539 /* Start discovery by sending FLOGI, clean up old rpis */
2540 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
2542 if (ndlp
->nlp_state
!= NLP_STE_NPR_NODE
)
2544 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2545 /* Clean up the ndlp on Fabric connections */
2546 lpfc_drop_node(vport
, ndlp
);
2547 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
2548 /* Fail outstanding IO now since device
2549 * is marked for PLOGI.
2551 lpfc_unreg_rpi(vport
, ndlp
);
2554 if (vport
->port_state
!= LPFC_FLOGI
) {
2555 vport
->port_state
= LPFC_FLOGI
;
2556 lpfc_set_disctmo(vport
);
2557 lpfc_initial_flogi(vport
);
2563 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2564 /* Initial FLOGI timeout */
2565 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2566 "%d (%d):0222 Initial %s timeout\n",
2567 phba
->brd_no
, vport
->vpi
,
2568 vport
->vpi
? "FLOGI" : "FDISC");
2570 /* Assume no Fabric and go on with discovery.
2571 * Check for outstanding ELS FLOGI to abort.
2574 /* FLOGI failed, so just use loop map to make discovery list */
2575 lpfc_disc_list_loopmap(vport
);
2577 /* Start discovery */
2578 lpfc_disc_start(vport
);
2581 case LPFC_FABRIC_CFG_LINK
:
2582 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2584 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2585 "%d (%d):0223 Timeout while waiting for "
2586 "NameServer login\n",
2587 phba
->brd_no
, vport
->vpi
);
2589 /* Next look for NameServer ndlp */
2590 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
2593 /* Start discovery */
2594 lpfc_disc_start(vport
);
2598 /* Check for wait for NameServer Rsp timeout */
2599 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2600 "%d (%d):0224 NameServer Query timeout "
2602 phba
->brd_no
, vport
->vpi
,
2603 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2605 if (vport
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
2606 /* Try it one more time */
2607 vport
->fc_ns_retry
++;
2608 rc
= lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
,
2609 vport
->fc_ns_retry
, 0);
2613 vport
->fc_ns_retry
= 0;
2616 * Discovery is over.
2617 * set port_state to PORT_READY if SLI2.
2618 * cmpl_reg_vpi will set port_state to READY for SLI3.
2620 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2621 lpfc_issue_reg_vpi(phba
, vport
);
2622 else { /* NPIV Not enabled */
2623 lpfc_issue_clear_la(phba
, vport
);
2624 vport
->port_state
= LPFC_VPORT_READY
;
2627 /* Setup and issue mailbox INITIALIZE LINK command */
2628 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2629 if (!initlinkmbox
) {
2630 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2631 "%d (%d):0206 Device Discovery "
2632 "completion error\n",
2633 phba
->brd_no
, vport
->vpi
);
2634 phba
->link_state
= LPFC_HBA_ERROR
;
2638 lpfc_linkdown(phba
);
2639 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
2640 phba
->cfg_link_speed
);
2641 initlinkmbox
->mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
2642 initlinkmbox
->vport
= vport
;
2643 initlinkmbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2644 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
,
2645 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2646 lpfc_set_loopback_flag(phba
);
2647 if (rc
== MBX_NOT_FINISHED
)
2648 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
2652 case LPFC_DISC_AUTH
:
2653 /* Node Authentication timeout */
2654 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2655 "%d (%d):0227 Node Authentication timeout\n",
2656 phba
->brd_no
, vport
->vpi
);
2657 lpfc_disc_flush_list(vport
);
2660 * set port_state to PORT_READY if SLI2.
2661 * cmpl_reg_vpi will set port_state to READY for SLI3.
2663 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2664 lpfc_issue_reg_vpi(phba
, vport
);
2665 else { /* NPIV Not enabled */
2666 lpfc_issue_clear_la(phba
, vport
);
2667 vport
->port_state
= LPFC_VPORT_READY
;
2671 case LPFC_VPORT_READY
:
2672 if (vport
->fc_flag
& FC_RSCN_MODE
) {
2673 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2674 "%d (%d):0231 RSCN timeout Data: x%x "
2676 phba
->brd_no
, vport
->vpi
,
2677 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2679 /* Cleanup any outstanding ELS commands */
2680 lpfc_els_flush_cmd(vport
);
2682 lpfc_els_flush_rscn(vport
);
2683 lpfc_disc_flush_list(vport
);
2688 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2689 "%d (%d):0229 Unexpected discovery timeout, "
2690 "vport State x%x\n",
2691 phba
->brd_no
, vport
->vpi
, vport
->port_state
);
2696 switch (phba
->link_state
) {
2698 /* CLEAR LA timeout */
2699 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2700 "%d (%d):0228 CLEAR LA timeout\n",
2701 phba
->brd_no
, vport
->vpi
);
2705 case LPFC_LINK_UNKNOWN
:
2706 case LPFC_WARM_START
:
2707 case LPFC_INIT_START
:
2708 case LPFC_INIT_MBX_CMDS
:
2709 case LPFC_LINK_DOWN
:
2711 case LPFC_HBA_ERROR
:
2712 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2713 "%d (%d):0230 Unexpected timeout, hba link "
2715 phba
->brd_no
, vport
->vpi
, phba
->link_state
);
2719 case LPFC_HBA_READY
:
2724 lpfc_disc_flush_list(vport
);
2725 psli
->ring
[(psli
->extra_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2726 psli
->ring
[(psli
->fcp_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2727 psli
->ring
[(psli
->next_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2728 vport
->port_state
= LPFC_VPORT_READY
;
2735 * This routine handles processing a NameServer REG_LOGIN mailbox
2736 * command upon completion. It is setup in the LPFC_MBOXQ
2737 * as the completion routine when the command is
2738 * handed off to the SLI layer.
2741 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2743 MAILBOX_t
*mb
= &pmb
->mb
;
2744 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2745 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
2746 struct lpfc_vport
*vport
= pmb
->vport
;
2748 pmb
->context1
= NULL
;
2750 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
2751 ndlp
->nlp_type
|= NLP_FABRIC
;
2752 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
2755 * Start issuing Fabric-Device Management Interface (FDMI) command to
2756 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2757 * fdmi-on=2 (supporting RPA/hostnmae)
2760 if (phba
->cfg_fdmi_on
== 1)
2761 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DHBA
);
2763 mod_timer(&vport
->fc_fdmitmo
, jiffies
+ HZ
* 60);
2765 /* Mailbox took a reference to the node */
2767 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2769 mempool_free(pmb
, phba
->mbox_mem_pool
);
2775 lpfc_filter_by_rpi(struct lpfc_nodelist
*ndlp
, void *param
)
2777 uint16_t *rpi
= param
;
2779 return ndlp
->nlp_rpi
== *rpi
;
2783 lpfc_filter_by_wwpn(struct lpfc_nodelist
*ndlp
, void *param
)
2785 return memcmp(&ndlp
->nlp_portname
, param
,
2786 sizeof(ndlp
->nlp_portname
)) == 0;
2789 struct lpfc_nodelist
*
2790 __lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
2792 struct lpfc_nodelist
*ndlp
;
2794 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2795 if (ndlp
->nlp_state
!= NLP_STE_UNUSED_NODE
&&
2796 filter(ndlp
, param
))
2803 * Search node lists for a remote port matching filter criteria
2804 * Caller needs to hold host_lock before calling this routine.
2806 struct lpfc_nodelist
*
2807 lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
2809 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2810 struct lpfc_nodelist
*ndlp
;
2812 spin_lock_irq(shost
->host_lock
);
2813 ndlp
= __lpfc_find_node(vport
, filter
, param
);
2814 spin_unlock_irq(shost
->host_lock
);
2819 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2820 * returns the node list element pointer else return NULL.
2822 struct lpfc_nodelist
*
2823 __lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
2825 return __lpfc_find_node(vport
, lpfc_filter_by_rpi
, &rpi
);
2828 struct lpfc_nodelist
*
2829 lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
2831 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2832 struct lpfc_nodelist
*ndlp
;
2834 spin_lock_irq(shost
->host_lock
);
2835 ndlp
= __lpfc_findnode_rpi(vport
, rpi
);
2836 spin_unlock_irq(shost
->host_lock
);
2841 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2842 * returns the node element list pointer else return NULL.
2844 struct lpfc_nodelist
*
2845 lpfc_findnode_wwpn(struct lpfc_vport
*vport
, struct lpfc_name
*wwpn
)
2847 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2848 struct lpfc_nodelist
*ndlp
;
2850 spin_lock_irq(shost
->host_lock
);
2851 ndlp
= __lpfc_find_node(vport
, lpfc_filter_by_wwpn
, wwpn
);
2852 spin_unlock_irq(shost
->host_lock
);
2857 lpfc_dev_loss_delay(unsigned long ptr
)
2859 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) ptr
;
2860 struct lpfc_vport
*vport
= ndlp
->vport
;
2861 struct lpfc_hba
*phba
= vport
->phba
;
2862 struct lpfc_work_evt
*evtp
= &ndlp
->dev_loss_evt
;
2863 unsigned long flags
;
2865 evtp
= &ndlp
->dev_loss_evt
;
2867 spin_lock_irqsave(&phba
->hbalock
, flags
);
2868 if (!list_empty(&evtp
->evt_listp
)) {
2869 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2873 evtp
->evt_arg1
= ndlp
;
2874 evtp
->evt
= LPFC_EVT_DEV_LOSS_DELAY
;
2875 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2876 if (phba
->work_wait
)
2877 lpfc_worker_wake_up(phba
);
2878 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
2883 lpfc_nlp_init(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2886 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
2887 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
2888 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
2889 init_timer(&ndlp
->nlp_delayfunc
);
2890 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
2891 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
2892 ndlp
->nlp_DID
= did
;
2893 ndlp
->vport
= vport
;
2894 ndlp
->nlp_sid
= NLP_NO_SID
;
2895 INIT_LIST_HEAD(&ndlp
->nlp_listp
);
2896 kref_init(&ndlp
->kref
);
2898 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
2899 "node init: did:x%x",
2900 ndlp
->nlp_DID
, 0, 0);
2906 lpfc_nlp_release(struct kref
*kref
)
2908 struct lpfc_nodelist
*ndlp
= container_of(kref
, struct lpfc_nodelist
,
2911 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
2912 "node release: did:x%x flg:x%x type:x%x",
2913 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
2915 lpfc_nlp_remove(ndlp
->vport
, ndlp
);
2916 mempool_free(ndlp
, ndlp
->vport
->phba
->nlp_mem_pool
);
2919 struct lpfc_nodelist
*
2920 lpfc_nlp_get(struct lpfc_nodelist
*ndlp
)
2923 kref_get(&ndlp
->kref
);
2928 lpfc_nlp_put(struct lpfc_nodelist
*ndlp
)
2930 return ndlp
? kref_put(&ndlp
->kref
, lpfc_nlp_release
) : 0;