1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2008 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>
34 #include "lpfc_disc.h"
36 #include "lpfc_scsi.h"
38 #include "lpfc_logmsg.h"
39 #include "lpfc_crtn.h"
40 #include "lpfc_vport.h"
41 #include "lpfc_debugfs.h"
43 /* AlpaArray for assignment of scsid for scan-down and bind_method */
44 static uint8_t lpfcAlpaArray
[] = {
45 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
46 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
47 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
48 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
49 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
50 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
51 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
52 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
53 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
54 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
55 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
56 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
57 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
60 static void lpfc_disc_timeout_handler(struct lpfc_vport
*);
61 static void lpfc_disc_flush_list(struct lpfc_vport
*vport
);
64 lpfc_terminate_rport_io(struct fc_rport
*rport
)
66 struct lpfc_rport_data
*rdata
;
67 struct lpfc_nodelist
* ndlp
;
68 struct lpfc_hba
*phba
;
70 rdata
= rport
->dd_data
;
73 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
74 if (rport
->roles
& FC_RPORT_ROLE_FCP_TARGET
)
75 printk(KERN_ERR
"Cannot find remote node"
76 " to terminate I/O Data x%x\n",
81 phba
= ndlp
->vport
->phba
;
83 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
84 "rport terminate: sid:x%x did:x%x flg:x%x",
85 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
87 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
88 lpfc_sli_abort_iocb(ndlp
->vport
,
89 &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
90 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
95 * This function will be called when dev_loss_tmo fire.
98 lpfc_dev_loss_tmo_callbk(struct fc_rport
*rport
)
100 struct lpfc_rport_data
*rdata
;
101 struct lpfc_nodelist
* ndlp
;
102 struct lpfc_vport
*vport
;
103 struct lpfc_hba
*phba
;
104 struct lpfc_work_evt
*evtp
;
108 rdata
= rport
->dd_data
;
110 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
116 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
117 "rport devlosscb: sid:x%x did:x%x flg:x%x",
118 ndlp
->nlp_sid
, ndlp
->nlp_DID
, ndlp
->nlp_flag
);
120 /* Don't defer this if we are in the process of deleting the vport
121 * or unloading the driver. The unload will cleanup the node
122 * appropriately we just need to cleanup the ndlp rport info here.
124 if (vport
->load_flag
& FC_UNLOADING
) {
125 put_node
= rdata
->pnode
!= NULL
;
126 put_rport
= ndlp
->rport
!= NULL
;
132 put_device(&rport
->dev
);
136 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
)
139 evtp
= &ndlp
->dev_loss_evt
;
141 if (!list_empty(&evtp
->evt_listp
))
144 spin_lock_irq(&phba
->hbalock
);
145 /* We need to hold the node by incrementing the reference
146 * count until this queued work is done
148 evtp
->evt_arg1
= lpfc_nlp_get(ndlp
);
149 if (evtp
->evt_arg1
) {
150 evtp
->evt
= LPFC_EVT_DEV_LOSS
;
151 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
152 lpfc_worker_wake_up(phba
);
154 spin_unlock_irq(&phba
->hbalock
);
160 * This function is called from the worker thread when dev_loss_tmo
164 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist
*ndlp
)
166 struct lpfc_rport_data
*rdata
;
167 struct fc_rport
*rport
;
168 struct lpfc_vport
*vport
;
169 struct lpfc_hba
*phba
;
180 rdata
= rport
->dd_data
;
181 name
= (uint8_t *) &ndlp
->nlp_portname
;
185 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
186 "rport devlosstmo:did:x%x type:x%x id:x%x",
187 ndlp
->nlp_DID
, ndlp
->nlp_type
, rport
->scsi_target_id
);
189 /* Don't defer this if we are in the process of deleting the vport
190 * or unloading the driver. The unload will cleanup the node
191 * appropriately we just need to cleanup the ndlp rport info here.
193 if (vport
->load_flag
& FC_UNLOADING
) {
194 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
195 /* flush the target */
196 lpfc_sli_abort_iocb(vport
,
197 &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
198 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
200 put_node
= rdata
->pnode
!= NULL
;
201 put_rport
= ndlp
->rport
!= NULL
;
207 put_device(&rport
->dev
);
211 if (ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
) {
212 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
213 "0284 Devloss timeout Ignored on "
214 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
216 *name
, *(name
+1), *(name
+2), *(name
+3),
217 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
222 if (ndlp
->nlp_type
& NLP_FABRIC
) {
223 /* We will clean up these Nodes in linkup */
224 put_node
= rdata
->pnode
!= NULL
;
225 put_rport
= ndlp
->rport
!= NULL
;
231 put_device(&rport
->dev
);
235 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
237 /* flush the target */
238 lpfc_sli_abort_iocb(vport
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
239 ndlp
->nlp_sid
, 0, LPFC_CTX_TGT
);
243 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
244 "0203 Devloss timeout on "
245 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
246 "NPort x%06x Data: x%x x%x x%x\n",
247 *name
, *(name
+1), *(name
+2), *(name
+3),
248 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
249 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
250 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
252 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
253 "0204 Devloss timeout on "
254 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
255 "NPort x%06x Data: x%x x%x x%x\n",
256 *name
, *(name
+1), *(name
+2), *(name
+3),
257 *(name
+4), *(name
+5), *(name
+6), *(name
+7),
258 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
259 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
262 put_node
= rdata
->pnode
!= NULL
;
263 put_rport
= ndlp
->rport
!= NULL
;
269 put_device(&rport
->dev
);
271 if (!(vport
->load_flag
& FC_UNLOADING
) &&
272 !(ndlp
->nlp_flag
& NLP_DELAY_TMO
) &&
273 !(ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) &&
274 (ndlp
->nlp_state
!= NLP_STE_UNMAPPED_NODE
))
275 lpfc_disc_state_machine(vport
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
279 * lpfc_alloc_fast_evt: Allocates data structure for posting event.
280 * @phba: Pointer to hba context object.
282 * This function is called from the functions which need to post
283 * events from interrupt context. This function allocates data
284 * structure required for posting event. It also keeps track of
285 * number of events pending and prevent event storm when there are
288 struct lpfc_fast_path_event
*
289 lpfc_alloc_fast_evt(struct lpfc_hba
*phba
) {
290 struct lpfc_fast_path_event
*ret
;
292 /* If there are lot of fast event do not exhaust memory due to this */
293 if (atomic_read(&phba
->fast_event_count
) > LPFC_MAX_EVT_COUNT
)
296 ret
= kzalloc(sizeof(struct lpfc_fast_path_event
),
299 atomic_inc(&phba
->fast_event_count
);
300 INIT_LIST_HEAD(&ret
->work_evt
.evt_listp
);
301 ret
->work_evt
.evt
= LPFC_EVT_FASTPATH_MGMT_EVT
;
306 * lpfc_free_fast_evt: Frees event data structure.
307 * @phba: Pointer to hba context object.
308 * @evt: Event object which need to be freed.
310 * This function frees the data structure required for posting
314 lpfc_free_fast_evt(struct lpfc_hba
*phba
,
315 struct lpfc_fast_path_event
*evt
) {
317 atomic_dec(&phba
->fast_event_count
);
322 * lpfc_send_fastpath_evt: Posts events generated from fast path.
323 * @phba: Pointer to hba context object.
324 * @evtp: Event data structure.
326 * This function is called from worker thread, when the interrupt
327 * context need to post an event. This function posts the event
328 * to fc transport netlink interface.
331 lpfc_send_fastpath_evt(struct lpfc_hba
*phba
,
332 struct lpfc_work_evt
*evtp
)
334 unsigned long evt_category
, evt_sub_category
;
335 struct lpfc_fast_path_event
*fast_evt_data
;
337 uint32_t evt_data_size
;
338 struct Scsi_Host
*shost
;
340 fast_evt_data
= container_of(evtp
, struct lpfc_fast_path_event
,
343 evt_category
= (unsigned long) fast_evt_data
->un
.fabric_evt
.event_type
;
344 evt_sub_category
= (unsigned long) fast_evt_data
->un
.
345 fabric_evt
.subcategory
;
346 shost
= lpfc_shost_from_vport(fast_evt_data
->vport
);
347 if (evt_category
== FC_REG_FABRIC_EVENT
) {
348 if (evt_sub_category
== LPFC_EVENT_FCPRDCHKERR
) {
349 evt_data
= (char *) &fast_evt_data
->un
.read_check_error
;
350 evt_data_size
= sizeof(fast_evt_data
->un
.
352 } else if ((evt_sub_category
== LPFC_EVENT_FABRIC_BUSY
) ||
353 (evt_sub_category
== IOSTAT_NPORT_BSY
)) {
354 evt_data
= (char *) &fast_evt_data
->un
.fabric_evt
;
355 evt_data_size
= sizeof(fast_evt_data
->un
.fabric_evt
);
357 lpfc_free_fast_evt(phba
, fast_evt_data
);
360 } else if (evt_category
== FC_REG_SCSI_EVENT
) {
361 switch (evt_sub_category
) {
362 case LPFC_EVENT_QFULL
:
363 case LPFC_EVENT_DEVBSY
:
364 evt_data
= (char *) &fast_evt_data
->un
.scsi_evt
;
365 evt_data_size
= sizeof(fast_evt_data
->un
.scsi_evt
);
367 case LPFC_EVENT_CHECK_COND
:
368 evt_data
= (char *) &fast_evt_data
->un
.check_cond_evt
;
369 evt_data_size
= sizeof(fast_evt_data
->un
.
372 case LPFC_EVENT_VARQUEDEPTH
:
373 evt_data
= (char *) &fast_evt_data
->un
.queue_depth_evt
;
374 evt_data_size
= sizeof(fast_evt_data
->un
.
378 lpfc_free_fast_evt(phba
, fast_evt_data
);
382 lpfc_free_fast_evt(phba
, fast_evt_data
);
386 fc_host_post_vendor_event(shost
,
387 fc_get_event_number(),
390 SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX
);
392 lpfc_free_fast_evt(phba
, fast_evt_data
);
397 lpfc_work_list_done(struct lpfc_hba
*phba
)
399 struct lpfc_work_evt
*evtp
= NULL
;
400 struct lpfc_nodelist
*ndlp
;
403 spin_lock_irq(&phba
->hbalock
);
404 while (!list_empty(&phba
->work_list
)) {
405 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
407 spin_unlock_irq(&phba
->hbalock
);
410 case LPFC_EVT_ELS_RETRY
:
411 ndlp
= (struct lpfc_nodelist
*) (evtp
->evt_arg1
);
412 lpfc_els_retry_delay_handler(ndlp
);
413 free_evt
= 0; /* evt is part of ndlp */
414 /* decrement the node reference count held
415 * for this queued work
419 case LPFC_EVT_DEV_LOSS
:
420 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
421 lpfc_dev_loss_tmo_handler(ndlp
);
423 /* decrement the node reference count held for
428 case LPFC_EVT_ONLINE
:
429 if (phba
->link_state
< LPFC_LINK_DOWN
)
430 *(int *) (evtp
->evt_arg1
) = lpfc_online(phba
);
432 *(int *) (evtp
->evt_arg1
) = 0;
433 complete((struct completion
*)(evtp
->evt_arg2
));
435 case LPFC_EVT_OFFLINE_PREP
:
436 if (phba
->link_state
>= LPFC_LINK_DOWN
)
437 lpfc_offline_prep(phba
);
438 *(int *)(evtp
->evt_arg1
) = 0;
439 complete((struct completion
*)(evtp
->evt_arg2
));
441 case LPFC_EVT_OFFLINE
:
443 lpfc_sli_brdrestart(phba
);
444 *(int *)(evtp
->evt_arg1
) =
445 lpfc_sli_brdready(phba
, HS_FFRDY
| HS_MBRDY
);
446 lpfc_unblock_mgmt_io(phba
);
447 complete((struct completion
*)(evtp
->evt_arg2
));
449 case LPFC_EVT_WARM_START
:
451 lpfc_reset_barrier(phba
);
452 lpfc_sli_brdreset(phba
);
453 lpfc_hba_down_post(phba
);
454 *(int *)(evtp
->evt_arg1
) =
455 lpfc_sli_brdready(phba
, HS_MBRDY
);
456 lpfc_unblock_mgmt_io(phba
);
457 complete((struct completion
*)(evtp
->evt_arg2
));
461 *(int *)(evtp
->evt_arg1
)
462 = (phba
->pport
->stopped
)
463 ? 0 : lpfc_sli_brdkill(phba
);
464 lpfc_unblock_mgmt_io(phba
);
465 complete((struct completion
*)(evtp
->evt_arg2
));
467 case LPFC_EVT_FASTPATH_MGMT_EVT
:
468 lpfc_send_fastpath_evt(phba
, evtp
);
474 spin_lock_irq(&phba
->hbalock
);
476 spin_unlock_irq(&phba
->hbalock
);
481 lpfc_work_done(struct lpfc_hba
*phba
)
483 struct lpfc_sli_ring
*pring
;
484 uint32_t ha_copy
, status
, control
, work_port_events
;
485 struct lpfc_vport
**vports
;
486 struct lpfc_vport
*vport
;
489 spin_lock_irq(&phba
->hbalock
);
490 ha_copy
= phba
->work_ha
;
492 spin_unlock_irq(&phba
->hbalock
);
494 if (ha_copy
& HA_ERATT
)
495 /* Handle the error attention event */
496 lpfc_handle_eratt(phba
);
498 if (ha_copy
& HA_MBATT
)
499 lpfc_sli_handle_mb_event(phba
);
501 if (ha_copy
& HA_LATT
)
502 lpfc_handle_latt(phba
);
504 vports
= lpfc_create_vport_work_array(phba
);
506 for(i
= 0; i
<= phba
->max_vpi
; i
++) {
508 * We could have no vports in array if unloading, so if
509 * this happens then just use the pport
511 if (vports
[i
] == NULL
&& i
== 0)
517 spin_lock_irq(&vport
->work_port_lock
);
518 work_port_events
= vport
->work_port_events
;
519 vport
->work_port_events
&= ~work_port_events
;
520 spin_unlock_irq(&vport
->work_port_lock
);
521 if (work_port_events
& WORKER_DISC_TMO
)
522 lpfc_disc_timeout_handler(vport
);
523 if (work_port_events
& WORKER_ELS_TMO
)
524 lpfc_els_timeout_handler(vport
);
525 if (work_port_events
& WORKER_HB_TMO
)
526 lpfc_hb_timeout_handler(phba
);
527 if (work_port_events
& WORKER_MBOX_TMO
)
528 lpfc_mbox_timeout_handler(phba
);
529 if (work_port_events
& WORKER_FABRIC_BLOCK_TMO
)
530 lpfc_unblock_fabric_iocbs(phba
);
531 if (work_port_events
& WORKER_FDMI_TMO
)
532 lpfc_fdmi_timeout_handler(vport
);
533 if (work_port_events
& WORKER_RAMP_DOWN_QUEUE
)
534 lpfc_ramp_down_queue_handler(phba
);
535 if (work_port_events
& WORKER_RAMP_UP_QUEUE
)
536 lpfc_ramp_up_queue_handler(phba
);
538 lpfc_destroy_vport_work_array(phba
, vports
);
540 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
541 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
542 status
>>= (4*LPFC_ELS_RING
);
543 if ((status
& HA_RXMASK
)
544 || (pring
->flag
& LPFC_DEFERRED_RING_EVENT
)) {
545 if (pring
->flag
& LPFC_STOP_IOCB_EVENT
) {
546 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
547 /* Set the lpfc data pending flag */
548 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
550 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
551 lpfc_sli_handle_slow_ring_event(phba
, pring
,
556 * Turn on Ring interrupts
558 spin_lock_irq(&phba
->hbalock
);
559 control
= readl(phba
->HCregaddr
);
560 if (!(control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
))) {
561 lpfc_debugfs_slow_ring_trc(phba
,
562 "WRK Enable ring: cntl:x%x hacopy:x%x",
563 control
, ha_copy
, 0);
565 control
|= (HC_R0INT_ENA
<< LPFC_ELS_RING
);
566 writel(control
, phba
->HCregaddr
);
567 readl(phba
->HCregaddr
); /* flush */
570 lpfc_debugfs_slow_ring_trc(phba
,
571 "WRK Ring ok: cntl:x%x hacopy:x%x",
572 control
, ha_copy
, 0);
574 spin_unlock_irq(&phba
->hbalock
);
576 lpfc_work_list_done(phba
);
580 lpfc_do_work(void *p
)
582 struct lpfc_hba
*phba
= p
;
585 set_user_nice(current
, -20);
586 phba
->data_flags
= 0;
589 /* wait and check worker queue activities */
590 rc
= wait_event_interruptible(phba
->work_waitq
,
591 (test_and_clear_bit(LPFC_DATA_READY
,
593 || kthread_should_stop()));
596 if (kthread_should_stop())
599 /* Attend pending lpfc data processing */
600 lpfc_work_done(phba
);
606 * This is only called to handle FC worker events. Since this a rare
607 * occurance, we allocate a struct lpfc_work_evt structure here instead of
608 * embedding it in the IOCB.
611 lpfc_workq_post_event(struct lpfc_hba
*phba
, void *arg1
, void *arg2
,
614 struct lpfc_work_evt
*evtp
;
618 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
619 * be queued to worker thread for processing
621 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_ATOMIC
);
625 evtp
->evt_arg1
= arg1
;
626 evtp
->evt_arg2
= arg2
;
629 spin_lock_irqsave(&phba
->hbalock
, flags
);
630 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
631 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
633 lpfc_worker_wake_up(phba
);
639 lpfc_cleanup_rpis(struct lpfc_vport
*vport
, int remove
)
641 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
642 struct lpfc_hba
*phba
= vport
->phba
;
643 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
646 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
, nlp_listp
) {
647 if (!NLP_CHK_NODE_ACT(ndlp
))
649 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
651 if ((phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) ||
652 ((vport
->port_type
== LPFC_NPIV_PORT
) &&
653 (ndlp
->nlp_DID
== NameServer_DID
)))
654 lpfc_unreg_rpi(vport
, ndlp
);
656 /* Leave Fabric nodes alone on link down */
657 if (!remove
&& ndlp
->nlp_type
& NLP_FABRIC
)
659 rc
= lpfc_disc_state_machine(vport
, ndlp
, NULL
,
662 : NLP_EVT_DEVICE_RECOVERY
);
664 if (phba
->sli3_options
& LPFC_SLI3_VPORT_TEARDOWN
) {
665 lpfc_mbx_unreg_vpi(vport
);
666 spin_lock_irq(shost
->host_lock
);
667 vport
->fc_flag
|= FC_VPORT_NEEDS_REG_VPI
;
668 spin_unlock_irq(shost
->host_lock
);
673 lpfc_port_link_failure(struct lpfc_vport
*vport
)
675 /* Cleanup any outstanding RSCN activity */
676 lpfc_els_flush_rscn(vport
);
678 /* Cleanup any outstanding ELS commands */
679 lpfc_els_flush_cmd(vport
);
681 lpfc_cleanup_rpis(vport
, 0);
683 /* Turn off discovery timer if its running */
684 lpfc_can_disctmo(vport
);
688 lpfc_linkdown_port(struct lpfc_vport
*vport
)
690 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
692 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKDOWN
, 0);
694 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
695 "Link Down: state:x%x rtry:x%x flg:x%x",
696 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
698 lpfc_port_link_failure(vport
);
703 lpfc_linkdown(struct lpfc_hba
*phba
)
705 struct lpfc_vport
*vport
= phba
->pport
;
706 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
707 struct lpfc_vport
**vports
;
711 if (phba
->link_state
== LPFC_LINK_DOWN
)
713 spin_lock_irq(&phba
->hbalock
);
714 if (phba
->link_state
> LPFC_LINK_DOWN
) {
715 phba
->link_state
= LPFC_LINK_DOWN
;
716 phba
->pport
->fc_flag
&= ~FC_LBIT
;
718 spin_unlock_irq(&phba
->hbalock
);
719 vports
= lpfc_create_vport_work_array(phba
);
721 for(i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
722 /* Issue a LINK DOWN event to all nodes */
723 lpfc_linkdown_port(vports
[i
]);
725 lpfc_destroy_vport_work_array(phba
, vports
);
726 /* Clean up any firmware default rpi's */
727 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
729 lpfc_unreg_did(phba
, 0xffff, 0xffffffff, mb
);
731 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
732 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
733 == MBX_NOT_FINISHED
) {
734 mempool_free(mb
, phba
->mbox_mem_pool
);
738 /* Setup myDID for link up if we are in pt2pt mode */
739 if (phba
->pport
->fc_flag
& FC_PT2PT
) {
740 phba
->pport
->fc_myDID
= 0;
741 mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
743 lpfc_config_link(phba
, mb
);
744 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
746 if (lpfc_sli_issue_mbox(phba
, mb
, MBX_NOWAIT
)
747 == MBX_NOT_FINISHED
) {
748 mempool_free(mb
, phba
->mbox_mem_pool
);
751 spin_lock_irq(shost
->host_lock
);
752 phba
->pport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
753 spin_unlock_irq(shost
->host_lock
);
760 lpfc_linkup_cleanup_nodes(struct lpfc_vport
*vport
)
762 struct lpfc_nodelist
*ndlp
;
764 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
765 if (!NLP_CHK_NODE_ACT(ndlp
))
767 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
769 if (ndlp
->nlp_type
& NLP_FABRIC
) {
770 /* On Linkup its safe to clean up the ndlp
771 * from Fabric connections.
773 if (ndlp
->nlp_DID
!= Fabric_DID
)
774 lpfc_unreg_rpi(vport
, ndlp
);
775 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
776 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
777 /* Fail outstanding IO now since device is
780 lpfc_unreg_rpi(vport
, ndlp
);
786 lpfc_linkup_port(struct lpfc_vport
*vport
)
788 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
789 struct lpfc_hba
*phba
= vport
->phba
;
791 if ((vport
->load_flag
& FC_UNLOADING
) != 0)
794 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
795 "Link Up: top:x%x speed:x%x flg:x%x",
796 phba
->fc_topology
, phba
->fc_linkspeed
, phba
->link_flag
);
798 /* If NPIV is not enabled, only bring the physical port up */
799 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
800 (vport
!= phba
->pport
))
803 fc_host_post_event(shost
, fc_get_event_number(), FCH_EVT_LINKUP
, 0);
805 spin_lock_irq(shost
->host_lock
);
806 vport
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
807 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
808 vport
->fc_flag
|= FC_NDISC_ACTIVE
;
809 vport
->fc_ns_retry
= 0;
810 spin_unlock_irq(shost
->host_lock
);
812 if (vport
->fc_flag
& FC_LBIT
)
813 lpfc_linkup_cleanup_nodes(vport
);
818 lpfc_linkup(struct lpfc_hba
*phba
)
820 struct lpfc_vport
**vports
;
823 phba
->link_state
= LPFC_LINK_UP
;
825 /* Unblock fabric iocbs if they are blocked */
826 clear_bit(FABRIC_COMANDS_BLOCKED
, &phba
->bit_flags
);
827 del_timer_sync(&phba
->fabric_block_timer
);
829 vports
= lpfc_create_vport_work_array(phba
);
831 for(i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++)
832 lpfc_linkup_port(vports
[i
]);
833 lpfc_destroy_vport_work_array(phba
, vports
);
834 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
835 lpfc_issue_clear_la(phba
, phba
->pport
);
841 * This routine handles processing a CLEAR_LA mailbox
842 * command upon completion. It is setup in the LPFC_MBOXQ
843 * as the completion routine when the command is
844 * handed off to the SLI layer.
847 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
849 struct lpfc_vport
*vport
= pmb
->vport
;
850 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
851 struct lpfc_sli
*psli
= &phba
->sli
;
852 MAILBOX_t
*mb
= &pmb
->mb
;
855 /* Since we don't do discovery right now, turn these off here */
856 psli
->ring
[psli
->extra_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
857 psli
->ring
[psli
->fcp_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
858 psli
->ring
[psli
->next_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
860 /* Check for error */
861 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
862 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
863 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
864 "0320 CLEAR_LA mbxStatus error x%x hba "
866 mb
->mbxStatus
, vport
->port_state
);
867 phba
->link_state
= LPFC_HBA_ERROR
;
871 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
872 phba
->link_state
= LPFC_HBA_READY
;
874 spin_lock_irq(&phba
->hbalock
);
875 psli
->sli_flag
|= LPFC_PROCESS_LA
;
876 control
= readl(phba
->HCregaddr
);
877 control
|= HC_LAINT_ENA
;
878 writel(control
, phba
->HCregaddr
);
879 readl(phba
->HCregaddr
); /* flush */
880 spin_unlock_irq(&phba
->hbalock
);
881 mempool_free(pmb
, phba
->mbox_mem_pool
);
885 /* Device Discovery completes */
886 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
887 "0225 Device Discovery completes\n");
888 mempool_free(pmb
, phba
->mbox_mem_pool
);
890 spin_lock_irq(shost
->host_lock
);
891 vport
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
892 spin_unlock_irq(shost
->host_lock
);
894 lpfc_can_disctmo(vport
);
896 /* turn on Link Attention interrupts */
898 spin_lock_irq(&phba
->hbalock
);
899 psli
->sli_flag
|= LPFC_PROCESS_LA
;
900 control
= readl(phba
->HCregaddr
);
901 control
|= HC_LAINT_ENA
;
902 writel(control
, phba
->HCregaddr
);
903 readl(phba
->HCregaddr
); /* flush */
904 spin_unlock_irq(&phba
->hbalock
);
911 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
913 struct lpfc_vport
*vport
= pmb
->vport
;
915 if (pmb
->mb
.mbxStatus
)
918 mempool_free(pmb
, phba
->mbox_mem_pool
);
920 if (phba
->fc_topology
== TOPOLOGY_LOOP
&&
921 vport
->fc_flag
& FC_PUBLIC_LOOP
&&
922 !(vport
->fc_flag
& FC_LBIT
)) {
923 /* Need to wait for FAN - use discovery timer
924 * for timeout. port_state is identically
925 * LPFC_LOCAL_CFG_LINK while waiting for FAN
927 lpfc_set_disctmo(vport
);
931 /* Start discovery by sending a FLOGI. port_state is identically
932 * LPFC_FLOGI while waiting for FLOGI cmpl
934 if (vport
->port_state
!= LPFC_FLOGI
) {
935 lpfc_initial_flogi(vport
);
940 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
941 "0306 CONFIG_LINK mbxStatus error x%x "
943 pmb
->mb
.mbxStatus
, vport
->port_state
);
944 mempool_free(pmb
, phba
->mbox_mem_pool
);
948 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
949 "0200 CONFIG_LINK bad hba state x%x\n",
952 lpfc_issue_clear_la(phba
, vport
);
957 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
959 MAILBOX_t
*mb
= &pmb
->mb
;
960 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
961 struct lpfc_vport
*vport
= pmb
->vport
;
964 /* Check for error */
966 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
967 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
968 "0319 READ_SPARAM mbxStatus error x%x "
970 mb
->mbxStatus
, vport
->port_state
);
975 memcpy((uint8_t *) &vport
->fc_sparam
, (uint8_t *) mp
->virt
,
976 sizeof (struct serv_parm
));
977 if (phba
->cfg_soft_wwnn
)
978 u64_to_wwn(phba
->cfg_soft_wwnn
,
979 vport
->fc_sparam
.nodeName
.u
.wwn
);
980 if (phba
->cfg_soft_wwpn
)
981 u64_to_wwn(phba
->cfg_soft_wwpn
,
982 vport
->fc_sparam
.portName
.u
.wwn
);
983 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
984 sizeof(vport
->fc_nodename
));
985 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
986 sizeof(vport
->fc_portname
));
987 if (vport
->port_type
== LPFC_PHYSICAL_PORT
) {
988 memcpy(&phba
->wwnn
, &vport
->fc_nodename
, sizeof(phba
->wwnn
));
989 memcpy(&phba
->wwpn
, &vport
->fc_portname
, sizeof(phba
->wwnn
));
992 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
994 mempool_free(pmb
, phba
->mbox_mem_pool
);
998 pmb
->context1
= NULL
;
999 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1001 lpfc_issue_clear_la(phba
, vport
);
1002 mempool_free(pmb
, phba
->mbox_mem_pool
);
1007 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, READ_LA_VAR
*la
)
1009 struct lpfc_vport
*vport
= phba
->pport
;
1010 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
;
1012 struct lpfc_dmabuf
*mp
;
1015 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1016 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1018 spin_lock_irq(&phba
->hbalock
);
1019 switch (la
->UlnkSpeed
) {
1021 phba
->fc_linkspeed
= LA_1GHZ_LINK
;
1024 phba
->fc_linkspeed
= LA_2GHZ_LINK
;
1027 phba
->fc_linkspeed
= LA_4GHZ_LINK
;
1030 phba
->fc_linkspeed
= LA_8GHZ_LINK
;
1033 phba
->fc_linkspeed
= LA_UNKNW_LINK
;
1037 phba
->fc_topology
= la
->topology
;
1038 phba
->link_flag
&= ~LS_NPIV_FAB_SUPPORTED
;
1040 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
1041 phba
->sli3_options
&= ~LPFC_SLI3_NPIV_ENABLED
;
1043 if (phba
->cfg_enable_npiv
)
1044 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1045 "1309 Link Up Event npiv not supported in loop "
1047 /* Get Loop Map information */
1049 vport
->fc_flag
|= FC_LBIT
;
1051 vport
->fc_myDID
= la
->granted_AL_PA
;
1052 i
= la
->un
.lilpBde64
.tus
.f
.bdeSize
;
1055 phba
->alpa_map
[0] = 0;
1057 if (vport
->cfg_log_verbose
& LOG_LINK_EVENT
) {
1068 numalpa
= phba
->alpa_map
[0];
1070 while (j
< numalpa
) {
1071 memset(un
.pamap
, 0, 16);
1072 for (k
= 1; j
< numalpa
; k
++) {
1074 phba
->alpa_map
[j
+ 1];
1079 /* Link Up Event ALPA map */
1080 lpfc_printf_log(phba
,
1083 "1304 Link Up Event "
1084 "ALPA map Data: x%x "
1086 un
.pa
.wd1
, un
.pa
.wd2
,
1087 un
.pa
.wd3
, un
.pa
.wd4
);
1092 if (!(phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)) {
1093 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
1094 (phba
->sli_rev
== 3))
1095 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
1097 vport
->fc_myDID
= phba
->fc_pref_DID
;
1098 vport
->fc_flag
|= FC_LBIT
;
1100 spin_unlock_irq(&phba
->hbalock
);
1104 lpfc_read_sparam(phba
, sparam_mbox
, 0);
1105 sparam_mbox
->vport
= vport
;
1106 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
1107 rc
= lpfc_sli_issue_mbox(phba
, sparam_mbox
, MBX_NOWAIT
);
1108 if (rc
== MBX_NOT_FINISHED
) {
1109 mp
= (struct lpfc_dmabuf
*) sparam_mbox
->context1
;
1110 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1112 mempool_free(sparam_mbox
, phba
->mbox_mem_pool
);
1114 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
1120 vport
->port_state
= LPFC_LOCAL_CFG_LINK
;
1121 lpfc_config_link(phba
, cfglink_mbox
);
1122 cfglink_mbox
->vport
= vport
;
1123 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_local_config_link
;
1124 rc
= lpfc_sli_issue_mbox(phba
, cfglink_mbox
, MBX_NOWAIT
);
1125 if (rc
!= MBX_NOT_FINISHED
)
1127 mempool_free(cfglink_mbox
, phba
->mbox_mem_pool
);
1130 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1131 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1132 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1133 vport
->port_state
, sparam_mbox
, cfglink_mbox
);
1134 lpfc_issue_clear_la(phba
, vport
);
1139 lpfc_enable_la(struct lpfc_hba
*phba
)
1142 struct lpfc_sli
*psli
= &phba
->sli
;
1143 spin_lock_irq(&phba
->hbalock
);
1144 psli
->sli_flag
|= LPFC_PROCESS_LA
;
1145 control
= readl(phba
->HCregaddr
);
1146 control
|= HC_LAINT_ENA
;
1147 writel(control
, phba
->HCregaddr
);
1148 readl(phba
->HCregaddr
); /* flush */
1149 spin_unlock_irq(&phba
->hbalock
);
1153 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
)
1155 lpfc_linkdown(phba
);
1156 lpfc_enable_la(phba
);
1157 /* turn on Link Attention interrupts - no CLEAR_LA needed */
1162 * This routine handles processing a READ_LA mailbox
1163 * command upon completion. It is setup in the LPFC_MBOXQ
1164 * as the completion routine when the command is
1165 * handed off to the SLI layer.
1168 lpfc_mbx_cmpl_read_la(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1170 struct lpfc_vport
*vport
= pmb
->vport
;
1171 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1173 MAILBOX_t
*mb
= &pmb
->mb
;
1174 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1176 /* Unblock ELS traffic */
1177 phba
->sli
.ring
[LPFC_ELS_RING
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
1178 /* Check for error */
1179 if (mb
->mbxStatus
) {
1180 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1181 "1307 READ_LA mbox error x%x state x%x\n",
1182 mb
->mbxStatus
, vport
->port_state
);
1183 lpfc_mbx_issue_link_down(phba
);
1184 phba
->link_state
= LPFC_HBA_ERROR
;
1185 goto lpfc_mbx_cmpl_read_la_free_mbuf
;
1188 la
= (READ_LA_VAR
*) & pmb
->mb
.un
.varReadLA
;
1190 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
1192 spin_lock_irq(shost
->host_lock
);
1194 vport
->fc_flag
|= FC_BYPASSED_MODE
;
1196 vport
->fc_flag
&= ~FC_BYPASSED_MODE
;
1197 spin_unlock_irq(shost
->host_lock
);
1199 if (((phba
->fc_eventTag
+ 1) < la
->eventTag
) ||
1200 (phba
->fc_eventTag
== la
->eventTag
)) {
1201 phba
->fc_stat
.LinkMultiEvent
++;
1202 if (la
->attType
== AT_LINK_UP
)
1203 if (phba
->fc_eventTag
!= 0)
1204 lpfc_linkdown(phba
);
1207 phba
->fc_eventTag
= la
->eventTag
;
1209 phba
->sli
.sli_flag
|= LPFC_MENLO_MAINT
;
1211 phba
->sli
.sli_flag
&= ~LPFC_MENLO_MAINT
;
1213 if (la
->attType
== AT_LINK_UP
&& (!la
->mm
)) {
1214 phba
->fc_stat
.LinkUp
++;
1215 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
1216 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1217 "1306 Link Up Event in loop back mode "
1218 "x%x received Data: x%x x%x x%x x%x\n",
1219 la
->eventTag
, phba
->fc_eventTag
,
1220 la
->granted_AL_PA
, la
->UlnkSpeed
,
1223 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1224 "1303 Link Up Event x%x received "
1225 "Data: x%x x%x x%x x%x x%x x%x %d\n",
1226 la
->eventTag
, phba
->fc_eventTag
,
1227 la
->granted_AL_PA
, la
->UlnkSpeed
,
1230 phba
->wait_4_mlo_maint_flg
);
1232 lpfc_mbx_process_link_up(phba
, la
);
1233 } else if (la
->attType
== AT_LINK_DOWN
) {
1234 phba
->fc_stat
.LinkDown
++;
1235 if (phba
->link_flag
& LS_LOOPBACK_MODE
) {
1236 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1237 "1308 Link Down Event in loop back mode "
1239 "Data: x%x x%x x%x\n",
1240 la
->eventTag
, phba
->fc_eventTag
,
1241 phba
->pport
->port_state
, vport
->fc_flag
);
1244 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1245 "1305 Link Down Event x%x received "
1246 "Data: x%x x%x x%x x%x x%x\n",
1247 la
->eventTag
, phba
->fc_eventTag
,
1248 phba
->pport
->port_state
, vport
->fc_flag
,
1251 lpfc_mbx_issue_link_down(phba
);
1253 if (la
->mm
&& la
->attType
== AT_LINK_UP
) {
1254 if (phba
->link_state
!= LPFC_LINK_DOWN
) {
1255 phba
->fc_stat
.LinkDown
++;
1256 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1257 "1312 Link Down Event x%x received "
1258 "Data: x%x x%x x%x\n",
1259 la
->eventTag
, phba
->fc_eventTag
,
1260 phba
->pport
->port_state
, vport
->fc_flag
);
1261 lpfc_mbx_issue_link_down(phba
);
1263 lpfc_enable_la(phba
);
1265 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
1266 "1310 Menlo Maint Mode Link up Event x%x rcvd "
1267 "Data: x%x x%x x%x\n",
1268 la
->eventTag
, phba
->fc_eventTag
,
1269 phba
->pport
->port_state
, vport
->fc_flag
);
1271 * The cmnd that triggered this will be waiting for this
1274 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
1275 if (phba
->wait_4_mlo_maint_flg
) {
1276 phba
->wait_4_mlo_maint_flg
= 0;
1277 wake_up_interruptible(&phba
->wait_4_mlo_m_q
);
1283 lpfc_issue_clear_la(phba
, vport
);
1284 lpfc_printf_log(phba
, KERN_INFO
, LOG_LINK_EVENT
,
1285 "1311 fa %d\n", la
->fa
);
1288 lpfc_mbx_cmpl_read_la_free_mbuf
:
1289 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1291 mempool_free(pmb
, phba
->mbox_mem_pool
);
1296 * This routine handles processing a REG_LOGIN mailbox
1297 * command upon completion. It is setup in the LPFC_MBOXQ
1298 * as the completion routine when the command is
1299 * handed off to the SLI layer.
1302 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1304 struct lpfc_vport
*vport
= pmb
->vport
;
1305 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1306 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
1308 pmb
->context1
= NULL
;
1310 /* Good status, call state machine */
1311 lpfc_disc_state_machine(vport
, ndlp
, pmb
, NLP_EVT_CMPL_REG_LOGIN
);
1312 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1314 mempool_free(pmb
, phba
->mbox_mem_pool
);
1315 /* decrement the node reference count held for this callback
1324 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1326 MAILBOX_t
*mb
= &pmb
->mb
;
1327 struct lpfc_vport
*vport
= pmb
->vport
;
1328 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1330 switch (mb
->mbxStatus
) {
1334 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
1335 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
1339 vport
->unreg_vpi_cmpl
= VPORT_OK
;
1340 mempool_free(pmb
, phba
->mbox_mem_pool
);
1342 * This shost reference might have been taken at the beginning of
1343 * lpfc_vport_delete()
1345 if (vport
->load_flag
& FC_UNLOADING
)
1346 scsi_host_put(shost
);
1350 lpfc_mbx_unreg_vpi(struct lpfc_vport
*vport
)
1352 struct lpfc_hba
*phba
= vport
->phba
;
1356 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1360 lpfc_unreg_vpi(phba
, vport
->vpi
, mbox
);
1361 mbox
->vport
= vport
;
1362 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_unreg_vpi
;
1363 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
1364 if (rc
== MBX_NOT_FINISHED
) {
1365 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
1366 "1800 Could not issue unreg_vpi\n");
1367 mempool_free(mbox
, phba
->mbox_mem_pool
);
1368 vport
->unreg_vpi_cmpl
= VPORT_ERROR
;
1375 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1377 struct lpfc_vport
*vport
= pmb
->vport
;
1378 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1379 MAILBOX_t
*mb
= &pmb
->mb
;
1381 switch (mb
->mbxStatus
) {
1385 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
1386 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
1388 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1389 spin_lock_irq(shost
->host_lock
);
1390 vport
->fc_flag
&= ~(FC_FABRIC
| FC_PUBLIC_LOOP
);
1391 spin_unlock_irq(shost
->host_lock
);
1392 vport
->fc_myDID
= 0;
1396 vport
->num_disc_nodes
= 0;
1397 /* go thru NPR list and issue ELS PLOGIs */
1398 if (vport
->fc_npr_cnt
)
1399 lpfc_els_disc_plogi(vport
);
1401 if (!vport
->num_disc_nodes
) {
1402 spin_lock_irq(shost
->host_lock
);
1403 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
1404 spin_unlock_irq(shost
->host_lock
);
1405 lpfc_can_disctmo(vport
);
1407 vport
->port_state
= LPFC_VPORT_READY
;
1410 mempool_free(pmb
, phba
->mbox_mem_pool
);
1415 * This routine handles processing a Fabric REG_LOGIN mailbox
1416 * command upon completion. It is setup in the LPFC_MBOXQ
1417 * as the completion routine when the command is
1418 * handed off to the SLI layer.
1421 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1423 struct lpfc_vport
*vport
= pmb
->vport
;
1424 MAILBOX_t
*mb
= &pmb
->mb
;
1425 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1426 struct lpfc_nodelist
*ndlp
;
1427 struct lpfc_vport
**vports
;
1430 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
1431 pmb
->context1
= NULL
;
1432 pmb
->context2
= NULL
;
1433 if (mb
->mbxStatus
) {
1434 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1436 mempool_free(pmb
, phba
->mbox_mem_pool
);
1438 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
1439 /* FLOGI failed, use loop map to make discovery list */
1440 lpfc_disc_list_loopmap(vport
);
1442 /* Start discovery */
1443 lpfc_disc_start(vport
);
1444 /* Decrement the reference count to ndlp after the
1445 * reference to the ndlp are done.
1451 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1452 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
,
1453 "0258 Register Fabric login error: 0x%x\n",
1455 /* Decrement the reference count to ndlp after the reference
1456 * to the ndlp are done.
1462 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
1463 ndlp
->nlp_type
|= NLP_FABRIC
;
1464 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
1466 if (vport
->port_state
== LPFC_FABRIC_CFG_LINK
) {
1467 vports
= lpfc_create_vport_work_array(phba
);
1470 i
<= phba
->max_vpi
&& vports
[i
] != NULL
;
1472 if (vports
[i
]->port_type
== LPFC_PHYSICAL_PORT
)
1474 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
1475 lpfc_vport_set_state(vports
[i
],
1479 if (phba
->link_flag
& LS_NPIV_FAB_SUPPORTED
)
1480 lpfc_initial_fdisc(vports
[i
]);
1482 lpfc_vport_set_state(vports
[i
],
1483 FC_VPORT_NO_FABRIC_SUPP
);
1484 lpfc_printf_vlog(vport
, KERN_ERR
,
1487 "Fabric support\n");
1490 lpfc_destroy_vport_work_array(phba
, vports
);
1491 lpfc_do_scr_ns_plogi(phba
, vport
);
1494 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1496 mempool_free(pmb
, phba
->mbox_mem_pool
);
1498 /* Drop the reference count from the mbox at the end after
1499 * all the current reference to the ndlp have been done.
1506 * This routine handles processing a NameServer REG_LOGIN mailbox
1507 * command upon completion. It is setup in the LPFC_MBOXQ
1508 * as the completion routine when the command is
1509 * handed off to the SLI layer.
1512 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1514 MAILBOX_t
*mb
= &pmb
->mb
;
1515 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1516 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
1517 struct lpfc_vport
*vport
= pmb
->vport
;
1519 if (mb
->mbxStatus
) {
1521 /* decrement the node reference count held for this
1522 * callback function.
1525 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1527 mempool_free(pmb
, phba
->mbox_mem_pool
);
1529 /* If no other thread is using the ndlp, free it */
1530 lpfc_nlp_not_used(ndlp
);
1532 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
1534 * RegLogin failed, use loop map to make discovery
1537 lpfc_disc_list_loopmap(vport
);
1539 /* Start discovery */
1540 lpfc_disc_start(vport
);
1543 lpfc_vport_set_state(vport
, FC_VPORT_FAILED
);
1544 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
1545 "0260 Register NameServer error: 0x%x\n",
1550 pmb
->context1
= NULL
;
1552 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
1553 ndlp
->nlp_type
|= NLP_FABRIC
;
1554 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
1556 if (vport
->port_state
< LPFC_VPORT_READY
) {
1557 /* Link up discovery requires Fabric registration. */
1558 lpfc_ns_cmd(vport
, SLI_CTNS_RFF_ID
, 0, 0); /* Do this first! */
1559 lpfc_ns_cmd(vport
, SLI_CTNS_RNN_ID
, 0, 0);
1560 lpfc_ns_cmd(vport
, SLI_CTNS_RSNN_NN
, 0, 0);
1561 lpfc_ns_cmd(vport
, SLI_CTNS_RSPN_ID
, 0, 0);
1562 lpfc_ns_cmd(vport
, SLI_CTNS_RFT_ID
, 0, 0);
1564 /* Issue SCR just before NameServer GID_FT Query */
1565 lpfc_issue_els_scr(vport
, SCR_DID
, 0);
1568 vport
->fc_ns_retry
= 0;
1569 /* Good status, issue CT Request to NameServer */
1570 if (lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
, 0, 0)) {
1571 /* Cannot issue NameServer Query, so finish up discovery */
1575 /* decrement the node reference count held for this
1576 * callback function.
1579 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1581 mempool_free(pmb
, phba
->mbox_mem_pool
);
1587 lpfc_register_remote_port(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1589 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1590 struct fc_rport
*rport
;
1591 struct lpfc_rport_data
*rdata
;
1592 struct fc_rport_identifiers rport_ids
;
1593 struct lpfc_hba
*phba
= vport
->phba
;
1595 /* Remote port has reappeared. Re-register w/ FC transport */
1596 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
1597 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
1598 rport_ids
.port_id
= ndlp
->nlp_DID
;
1599 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
1602 * We leave our node pointer in rport->dd_data when we unregister a
1603 * FCP target port. But fc_remote_port_add zeros the space to which
1604 * rport->dd_data points. So, if we're reusing a previously
1605 * registered port, drop the reference that we took the last time we
1606 * registered the port.
1608 if (ndlp
->rport
&& ndlp
->rport
->dd_data
&&
1609 ((struct lpfc_rport_data
*) ndlp
->rport
->dd_data
)->pnode
== ndlp
)
1612 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_RPORT
,
1613 "rport add: did:x%x flg:x%x type x%x",
1614 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
1616 ndlp
->rport
= rport
= fc_remote_port_add(shost
, 0, &rport_ids
);
1617 if (!rport
|| !get_device(&rport
->dev
)) {
1618 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
1619 "Warning: fc_remote_port_add failed\n");
1623 /* initialize static port data */
1624 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
1625 rport
->supported_classes
= ndlp
->nlp_class_sup
;
1626 rdata
= rport
->dd_data
;
1627 rdata
->pnode
= lpfc_nlp_get(ndlp
);
1629 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
1630 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
1631 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
1632 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
1635 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
1636 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
1638 if ((rport
->scsi_target_id
!= -1) &&
1639 (rport
->scsi_target_id
< LPFC_MAX_TARGET
)) {
1640 ndlp
->nlp_sid
= rport
->scsi_target_id
;
1646 lpfc_unregister_remote_port(struct lpfc_nodelist
*ndlp
)
1648 struct fc_rport
*rport
= ndlp
->rport
;
1650 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_RPORT
,
1651 "rport delete: did:x%x flg:x%x type x%x",
1652 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
1654 fc_remote_port_delete(rport
);
1660 lpfc_nlp_counters(struct lpfc_vport
*vport
, int state
, int count
)
1662 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1664 spin_lock_irq(shost
->host_lock
);
1666 case NLP_STE_UNUSED_NODE
:
1667 vport
->fc_unused_cnt
+= count
;
1669 case NLP_STE_PLOGI_ISSUE
:
1670 vport
->fc_plogi_cnt
+= count
;
1672 case NLP_STE_ADISC_ISSUE
:
1673 vport
->fc_adisc_cnt
+= count
;
1675 case NLP_STE_REG_LOGIN_ISSUE
:
1676 vport
->fc_reglogin_cnt
+= count
;
1678 case NLP_STE_PRLI_ISSUE
:
1679 vport
->fc_prli_cnt
+= count
;
1681 case NLP_STE_UNMAPPED_NODE
:
1682 vport
->fc_unmap_cnt
+= count
;
1684 case NLP_STE_MAPPED_NODE
:
1685 vport
->fc_map_cnt
+= count
;
1687 case NLP_STE_NPR_NODE
:
1688 vport
->fc_npr_cnt
+= count
;
1691 spin_unlock_irq(shost
->host_lock
);
1695 lpfc_nlp_state_cleanup(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1696 int old_state
, int new_state
)
1698 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1700 if (new_state
== NLP_STE_UNMAPPED_NODE
) {
1701 ndlp
->nlp_type
&= ~(NLP_FCP_TARGET
| NLP_FCP_INITIATOR
);
1702 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
1703 ndlp
->nlp_type
|= NLP_FC_NODE
;
1705 if (new_state
== NLP_STE_MAPPED_NODE
)
1706 ndlp
->nlp_flag
&= ~NLP_NODEV_REMOVE
;
1707 if (new_state
== NLP_STE_NPR_NODE
)
1708 ndlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
1710 /* Transport interface */
1711 if (ndlp
->rport
&& (old_state
== NLP_STE_MAPPED_NODE
||
1712 old_state
== NLP_STE_UNMAPPED_NODE
)) {
1713 vport
->phba
->nport_event_cnt
++;
1714 lpfc_unregister_remote_port(ndlp
);
1717 if (new_state
== NLP_STE_MAPPED_NODE
||
1718 new_state
== NLP_STE_UNMAPPED_NODE
) {
1719 vport
->phba
->nport_event_cnt
++;
1721 * Tell the fc transport about the port, if we haven't
1722 * already. If we have, and it's a scsi entity, be
1723 * sure to unblock any attached scsi devices
1725 lpfc_register_remote_port(vport
, ndlp
);
1727 if ((new_state
== NLP_STE_MAPPED_NODE
) &&
1728 (vport
->stat_data_enabled
)) {
1730 * A new target is discovered, if there is no buffer for
1731 * statistical data collection allocate buffer.
1733 ndlp
->lat_data
= kcalloc(LPFC_MAX_BUCKET_COUNT
,
1734 sizeof(struct lpfc_scsicmd_bkt
),
1737 if (!ndlp
->lat_data
)
1738 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_NODE
,
1739 "0286 lpfc_nlp_state_cleanup failed to "
1740 "allocate statistical data buffer DID "
1741 "0x%x\n", ndlp
->nlp_DID
);
1744 * if we added to Mapped list, but the remote port
1745 * registration failed or assigned a target id outside
1746 * our presentable range - move the node to the
1749 if (new_state
== NLP_STE_MAPPED_NODE
&&
1751 ndlp
->rport
->scsi_target_id
== -1 ||
1752 ndlp
->rport
->scsi_target_id
>= LPFC_MAX_TARGET
)) {
1753 spin_lock_irq(shost
->host_lock
);
1754 ndlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
1755 spin_unlock_irq(shost
->host_lock
);
1756 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
1761 lpfc_nlp_state_name(char *buffer
, size_t size
, int state
)
1763 static char *states
[] = {
1764 [NLP_STE_UNUSED_NODE
] = "UNUSED",
1765 [NLP_STE_PLOGI_ISSUE
] = "PLOGI",
1766 [NLP_STE_ADISC_ISSUE
] = "ADISC",
1767 [NLP_STE_REG_LOGIN_ISSUE
] = "REGLOGIN",
1768 [NLP_STE_PRLI_ISSUE
] = "PRLI",
1769 [NLP_STE_UNMAPPED_NODE
] = "UNMAPPED",
1770 [NLP_STE_MAPPED_NODE
] = "MAPPED",
1771 [NLP_STE_NPR_NODE
] = "NPR",
1774 if (state
< NLP_STE_MAX_STATE
&& states
[state
])
1775 strlcpy(buffer
, states
[state
], size
);
1777 snprintf(buffer
, size
, "unknown (%d)", state
);
1782 lpfc_nlp_set_state(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1785 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1786 int old_state
= ndlp
->nlp_state
;
1787 char name1
[16], name2
[16];
1789 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
1790 "0904 NPort state transition x%06x, %s -> %s\n",
1792 lpfc_nlp_state_name(name1
, sizeof(name1
), old_state
),
1793 lpfc_nlp_state_name(name2
, sizeof(name2
), state
));
1795 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
1796 "node statechg did:x%x old:%d ste:%d",
1797 ndlp
->nlp_DID
, old_state
, state
);
1799 if (old_state
== NLP_STE_NPR_NODE
&&
1800 state
!= NLP_STE_NPR_NODE
)
1801 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
1802 if (old_state
== NLP_STE_UNMAPPED_NODE
) {
1803 ndlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
1804 ndlp
->nlp_type
&= ~NLP_FC_NODE
;
1807 if (list_empty(&ndlp
->nlp_listp
)) {
1808 spin_lock_irq(shost
->host_lock
);
1809 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
1810 spin_unlock_irq(shost
->host_lock
);
1811 } else if (old_state
)
1812 lpfc_nlp_counters(vport
, old_state
, -1);
1814 ndlp
->nlp_state
= state
;
1815 lpfc_nlp_counters(vport
, state
, 1);
1816 lpfc_nlp_state_cleanup(vport
, ndlp
, old_state
, state
);
1820 lpfc_enqueue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1822 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1824 if (list_empty(&ndlp
->nlp_listp
)) {
1825 spin_lock_irq(shost
->host_lock
);
1826 list_add_tail(&ndlp
->nlp_listp
, &vport
->fc_nodes
);
1827 spin_unlock_irq(shost
->host_lock
);
1832 lpfc_dequeue_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1834 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1836 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
1837 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
1838 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
1839 spin_lock_irq(shost
->host_lock
);
1840 list_del_init(&ndlp
->nlp_listp
);
1841 spin_unlock_irq(shost
->host_lock
);
1842 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
1843 NLP_STE_UNUSED_NODE
);
1847 lpfc_disable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1849 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
1850 if (ndlp
->nlp_state
&& !list_empty(&ndlp
->nlp_listp
))
1851 lpfc_nlp_counters(vport
, ndlp
->nlp_state
, -1);
1852 lpfc_nlp_state_cleanup(vport
, ndlp
, ndlp
->nlp_state
,
1853 NLP_STE_UNUSED_NODE
);
1856 struct lpfc_nodelist
*
1857 lpfc_enable_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
1860 struct lpfc_hba
*phba
= vport
->phba
;
1862 unsigned long flags
;
1867 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
1868 /* The ndlp should not be in memory free mode */
1869 if (NLP_CHK_FREE_REQ(ndlp
)) {
1870 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
1871 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
1872 "0277 lpfc_enable_node: ndlp:x%p "
1873 "usgmap:x%x refcnt:%d\n",
1874 (void *)ndlp
, ndlp
->nlp_usg_map
,
1875 atomic_read(&ndlp
->kref
.refcount
));
1878 /* The ndlp should not already be in active mode */
1879 if (NLP_CHK_NODE_ACT(ndlp
)) {
1880 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
1881 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
1882 "0278 lpfc_enable_node: ndlp:x%p "
1883 "usgmap:x%x refcnt:%d\n",
1884 (void *)ndlp
, ndlp
->nlp_usg_map
,
1885 atomic_read(&ndlp
->kref
.refcount
));
1889 /* Keep the original DID */
1890 did
= ndlp
->nlp_DID
;
1892 /* re-initialize ndlp except of ndlp linked list pointer */
1893 memset((((char *)ndlp
) + sizeof (struct list_head
)), 0,
1894 sizeof (struct lpfc_nodelist
) - sizeof (struct list_head
));
1895 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
1896 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
1897 init_timer(&ndlp
->nlp_delayfunc
);
1898 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
1899 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
1900 ndlp
->nlp_DID
= did
;
1901 ndlp
->vport
= vport
;
1902 ndlp
->nlp_sid
= NLP_NO_SID
;
1903 /* ndlp management re-initialize */
1904 kref_init(&ndlp
->kref
);
1905 NLP_INT_NODE_ACT(ndlp
);
1907 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
1909 if (state
!= NLP_STE_UNUSED_NODE
)
1910 lpfc_nlp_set_state(vport
, ndlp
, state
);
1912 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
1913 "node enable: did:x%x",
1914 ndlp
->nlp_DID
, 0, 0);
1919 lpfc_drop_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
1922 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
1923 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
1924 * the ndlp from the vport. The ndlp marked as UNUSED on the list
1925 * until ALL other outstanding threads have completed. We check
1926 * that the ndlp not already in the UNUSED state before we proceed.
1928 if (ndlp
->nlp_state
== NLP_STE_UNUSED_NODE
)
1930 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
1936 * Start / ReStart rescue timer for Discovery / RSCN handling
1939 lpfc_set_disctmo(struct lpfc_vport
*vport
)
1941 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1942 struct lpfc_hba
*phba
= vport
->phba
;
1945 if (vport
->port_state
== LPFC_LOCAL_CFG_LINK
) {
1946 /* For FAN, timeout should be greater then edtov */
1947 tmo
= (((phba
->fc_edtov
+ 999) / 1000) + 1);
1949 /* Normal discovery timeout should be > then ELS/CT timeout
1950 * FC spec states we need 3 * ratov for CT requests
1952 tmo
= ((phba
->fc_ratov
* 3) + 3);
1956 if (!timer_pending(&vport
->fc_disctmo
)) {
1957 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1958 "set disc timer: tmo:x%x state:x%x flg:x%x",
1959 tmo
, vport
->port_state
, vport
->fc_flag
);
1962 mod_timer(&vport
->fc_disctmo
, jiffies
+ HZ
* tmo
);
1963 spin_lock_irq(shost
->host_lock
);
1964 vport
->fc_flag
|= FC_DISC_TMO
;
1965 spin_unlock_irq(shost
->host_lock
);
1967 /* Start Discovery Timer state <hba_state> */
1968 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
1969 "0247 Start Discovery Timer state x%x "
1970 "Data: x%x x%lx x%x x%x\n",
1971 vport
->port_state
, tmo
,
1972 (unsigned long)&vport
->fc_disctmo
, vport
->fc_plogi_cnt
,
1973 vport
->fc_adisc_cnt
);
1979 * Cancel rescue timer for Discovery / RSCN handling
1982 lpfc_can_disctmo(struct lpfc_vport
*vport
)
1984 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
1985 unsigned long iflags
;
1987 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
1988 "can disc timer: state:x%x rtry:x%x flg:x%x",
1989 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
1991 /* Turn off discovery timer if its running */
1992 if (vport
->fc_flag
& FC_DISC_TMO
) {
1993 spin_lock_irqsave(shost
->host_lock
, iflags
);
1994 vport
->fc_flag
&= ~FC_DISC_TMO
;
1995 spin_unlock_irqrestore(shost
->host_lock
, iflags
);
1996 del_timer_sync(&vport
->fc_disctmo
);
1997 spin_lock_irqsave(&vport
->work_port_lock
, iflags
);
1998 vport
->work_port_events
&= ~WORKER_DISC_TMO
;
1999 spin_unlock_irqrestore(&vport
->work_port_lock
, iflags
);
2002 /* Cancel Discovery Timer state <hba_state> */
2003 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2004 "0248 Cancel Discovery Timer state x%x "
2005 "Data: x%x x%x x%x\n",
2006 vport
->port_state
, vport
->fc_flag
,
2007 vport
->fc_plogi_cnt
, vport
->fc_adisc_cnt
);
2012 * Check specified ring for outstanding IOCB on the SLI queue
2013 * Return true if iocb matches the specified nport
2016 lpfc_check_sli_ndlp(struct lpfc_hba
*phba
,
2017 struct lpfc_sli_ring
*pring
,
2018 struct lpfc_iocbq
*iocb
,
2019 struct lpfc_nodelist
*ndlp
)
2021 struct lpfc_sli
*psli
= &phba
->sli
;
2022 IOCB_t
*icmd
= &iocb
->iocb
;
2023 struct lpfc_vport
*vport
= ndlp
->vport
;
2025 if (iocb
->vport
!= vport
)
2028 if (pring
->ringno
== LPFC_ELS_RING
) {
2029 switch (icmd
->ulpCommand
) {
2030 case CMD_GEN_REQUEST64_CR
:
2031 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
)
2033 case CMD_ELS_REQUEST64_CR
:
2034 if (icmd
->un
.elsreq64
.remoteID
== ndlp
->nlp_DID
)
2036 case CMD_XMIT_ELS_RSP64_CX
:
2037 if (iocb
->context1
== (uint8_t *) ndlp
)
2040 } else if (pring
->ringno
== psli
->extra_ring
) {
2042 } else if (pring
->ringno
== psli
->fcp_ring
) {
2043 /* Skip match check if waiting to relogin to FCP target */
2044 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
2045 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
2048 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
2051 } else if (pring
->ringno
== psli
->next_ring
) {
2058 * Free resources / clean up outstanding I/Os
2059 * associated with nlp_rpi in the LPFC_NODELIST entry.
2062 lpfc_no_rpi(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
2064 LIST_HEAD(completions
);
2065 struct lpfc_sli
*psli
;
2066 struct lpfc_sli_ring
*pring
;
2067 struct lpfc_iocbq
*iocb
, *next_iocb
;
2071 lpfc_fabric_abort_nport(ndlp
);
2074 * Everything that matches on txcmplq will be returned
2075 * by firmware with a no rpi error.
2078 rpi
= ndlp
->nlp_rpi
;
2080 /* Now process each ring */
2081 for (i
= 0; i
< psli
->num_rings
; i
++) {
2082 pring
= &psli
->ring
[i
];
2084 spin_lock_irq(&phba
->hbalock
);
2085 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
,
2088 * Check to see if iocb matches the nport we are
2091 if ((lpfc_check_sli_ndlp(phba
, pring
, iocb
,
2093 /* It matches, so deque and call compl
2095 list_move_tail(&iocb
->list
,
2100 spin_unlock_irq(&phba
->hbalock
);
2104 while (!list_empty(&completions
)) {
2105 iocb
= list_get_first(&completions
, struct lpfc_iocbq
, list
);
2106 list_del_init(&iocb
->list
);
2108 if (!iocb
->iocb_cmpl
)
2109 lpfc_sli_release_iocbq(phba
, iocb
);
2112 icmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
2113 icmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
2114 (iocb
->iocb_cmpl
)(phba
, iocb
, iocb
);
2122 * Free rpi associated with LPFC_NODELIST entry.
2123 * This routine is called from lpfc_freenode(), when we are removing
2124 * a LPFC_NODELIST entry. It is also called if the driver initiates a
2125 * LOGO that completes successfully, and we are waiting to PLOGI back
2126 * to the remote NPort. In addition, it is called after we receive
2127 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
2128 * we are waiting to PLOGI back to the remote NPort.
2131 lpfc_unreg_rpi(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
2133 struct lpfc_hba
*phba
= vport
->phba
;
2137 if (ndlp
->nlp_rpi
) {
2138 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2140 lpfc_unreg_login(phba
, vport
->vpi
, ndlp
->nlp_rpi
, mbox
);
2141 mbox
->vport
= vport
;
2142 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2143 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
2144 if (rc
== MBX_NOT_FINISHED
)
2145 mempool_free(mbox
, phba
->mbox_mem_pool
);
2147 lpfc_no_rpi(phba
, ndlp
);
2155 lpfc_unreg_all_rpis(struct lpfc_vport
*vport
)
2157 struct lpfc_hba
*phba
= vport
->phba
;
2161 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2163 lpfc_unreg_login(phba
, vport
->vpi
, 0xffff, mbox
);
2164 mbox
->vport
= vport
;
2165 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2166 mbox
->context1
= NULL
;
2167 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
2168 if (rc
== MBX_NOT_FINISHED
) {
2169 mempool_free(mbox
, phba
->mbox_mem_pool
);
2175 lpfc_unreg_default_rpis(struct lpfc_vport
*vport
)
2177 struct lpfc_hba
*phba
= vport
->phba
;
2181 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2183 lpfc_unreg_did(phba
, vport
->vpi
, 0xffffffff, mbox
);
2184 mbox
->vport
= vport
;
2185 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2186 mbox
->context1
= NULL
;
2187 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
2188 if (rc
== MBX_NOT_FINISHED
) {
2189 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_MBOX
| LOG_VPORT
,
2190 "1815 Could not issue "
2191 "unreg_did (default rpis)\n");
2192 mempool_free(mbox
, phba
->mbox_mem_pool
);
2198 * Free resources associated with LPFC_NODELIST entry
2199 * so it can be freed.
2202 lpfc_cleanup_node(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
2204 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2205 struct lpfc_hba
*phba
= vport
->phba
;
2206 LPFC_MBOXQ_t
*mb
, *nextmb
;
2207 struct lpfc_dmabuf
*mp
;
2209 /* Cleanup node for NPort <nlp_DID> */
2210 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
2211 "0900 Cleanup node for NPort x%x "
2212 "Data: x%x x%x x%x\n",
2213 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
2214 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
2215 if (NLP_CHK_FREE_REQ(ndlp
)) {
2216 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
2217 "0280 lpfc_cleanup_node: ndlp:x%p "
2218 "usgmap:x%x refcnt:%d\n",
2219 (void *)ndlp
, ndlp
->nlp_usg_map
,
2220 atomic_read(&ndlp
->kref
.refcount
));
2221 lpfc_dequeue_node(vport
, ndlp
);
2223 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_NODE
,
2224 "0281 lpfc_cleanup_node: ndlp:x%p "
2225 "usgmap:x%x refcnt:%d\n",
2226 (void *)ndlp
, ndlp
->nlp_usg_map
,
2227 atomic_read(&ndlp
->kref
.refcount
));
2228 lpfc_disable_node(vport
, ndlp
);
2231 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
2232 if ((mb
= phba
->sli
.mbox_active
)) {
2233 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
2234 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
2235 mb
->context2
= NULL
;
2236 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2240 spin_lock_irq(&phba
->hbalock
);
2241 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
2242 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
2243 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
2244 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
2246 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2249 list_del(&mb
->list
);
2250 mempool_free(mb
, phba
->mbox_mem_pool
);
2251 /* We shall not invoke the lpfc_nlp_put to decrement
2252 * the ndlp reference count as we are in the process
2253 * of lpfc_nlp_release.
2257 spin_unlock_irq(&phba
->hbalock
);
2259 lpfc_els_abort(phba
, ndlp
);
2261 spin_lock_irq(shost
->host_lock
);
2262 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
2263 spin_unlock_irq(shost
->host_lock
);
2265 ndlp
->nlp_last_elscmd
= 0;
2266 del_timer_sync(&ndlp
->nlp_delayfunc
);
2268 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
2269 list_del_init(&ndlp
->dev_loss_evt
.evt_listp
);
2271 lpfc_unreg_rpi(vport
, ndlp
);
2277 * Check to see if we can free the nlp back to the freelist.
2278 * If we are in the middle of using the nlp in the discovery state
2279 * machine, defer the free till we reach the end of the state machine.
2282 lpfc_nlp_remove(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
2284 struct lpfc_hba
*phba
= vport
->phba
;
2285 struct lpfc_rport_data
*rdata
;
2289 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2290 if (ndlp
->nlp_flag
& NLP_DEFER_RM
&& !ndlp
->nlp_rpi
) {
2291 /* For this case we need to cleanup the default rpi
2292 * allocated by the firmware.
2294 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))
2296 rc
= lpfc_reg_login(phba
, vport
->vpi
, ndlp
->nlp_DID
,
2297 (uint8_t *) &vport
->fc_sparam
, mbox
, 0);
2299 mempool_free(mbox
, phba
->mbox_mem_pool
);
2302 mbox
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
2303 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
2304 mbox
->vport
= vport
;
2305 mbox
->context2
= NULL
;
2306 rc
=lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
2307 if (rc
== MBX_NOT_FINISHED
) {
2308 mempool_free(mbox
, phba
->mbox_mem_pool
);
2313 lpfc_cleanup_node(vport
, ndlp
);
2316 * We can get here with a non-NULL ndlp->rport because when we
2317 * unregister a rport we don't break the rport/node linkage. So if we
2318 * do, make sure we don't leaving any dangling pointers behind.
2321 rdata
= ndlp
->rport
->dd_data
;
2322 rdata
->pnode
= NULL
;
2328 lpfc_matchdid(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
2331 D_ID mydid
, ndlpdid
, matchdid
;
2333 if (did
== Bcast_DID
)
2336 /* First check for Direct match */
2337 if (ndlp
->nlp_DID
== did
)
2340 /* Next check for area/domain identically equals 0 match */
2341 mydid
.un
.word
= vport
->fc_myDID
;
2342 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
2346 matchdid
.un
.word
= did
;
2347 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
2348 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
2349 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
2350 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
2351 if ((ndlpdid
.un
.b
.domain
== 0) &&
2352 (ndlpdid
.un
.b
.area
== 0)) {
2353 if (ndlpdid
.un
.b
.id
)
2359 matchdid
.un
.word
= ndlp
->nlp_DID
;
2360 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
2361 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
2362 if ((matchdid
.un
.b
.domain
== 0) &&
2363 (matchdid
.un
.b
.area
== 0)) {
2364 if (matchdid
.un
.b
.id
)
2372 /* Search for a nodelist entry */
2373 static struct lpfc_nodelist
*
2374 __lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
2376 struct lpfc_nodelist
*ndlp
;
2379 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
2380 if (lpfc_matchdid(vport
, ndlp
, did
)) {
2381 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
2382 ((uint32_t) ndlp
->nlp_xri
<< 16) |
2383 ((uint32_t) ndlp
->nlp_type
<< 8) |
2384 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
2385 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
2386 "0929 FIND node DID "
2387 "Data: x%p x%x x%x x%x\n",
2388 ndlp
, ndlp
->nlp_DID
,
2389 ndlp
->nlp_flag
, data1
);
2394 /* FIND node did <did> NOT FOUND */
2395 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_NODE
,
2396 "0932 FIND node did x%x NOT FOUND.\n", did
);
2400 struct lpfc_nodelist
*
2401 lpfc_findnode_did(struct lpfc_vport
*vport
, uint32_t did
)
2403 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2404 struct lpfc_nodelist
*ndlp
;
2406 spin_lock_irq(shost
->host_lock
);
2407 ndlp
= __lpfc_findnode_did(vport
, did
);
2408 spin_unlock_irq(shost
->host_lock
);
2412 struct lpfc_nodelist
*
2413 lpfc_setup_disc_node(struct lpfc_vport
*vport
, uint32_t did
)
2415 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2416 struct lpfc_nodelist
*ndlp
;
2418 ndlp
= lpfc_findnode_did(vport
, did
);
2420 if ((vport
->fc_flag
& FC_RSCN_MODE
) != 0 &&
2421 lpfc_rscn_payload_check(vport
, did
) == 0)
2423 ndlp
= (struct lpfc_nodelist
*)
2424 mempool_alloc(vport
->phba
->nlp_mem_pool
, GFP_KERNEL
);
2427 lpfc_nlp_init(vport
, ndlp
, did
);
2428 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
2429 spin_lock_irq(shost
->host_lock
);
2430 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2431 spin_unlock_irq(shost
->host_lock
);
2433 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
2434 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_NPR_NODE
);
2437 spin_lock_irq(shost
->host_lock
);
2438 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2439 spin_unlock_irq(shost
->host_lock
);
2443 if ((vport
->fc_flag
& FC_RSCN_MODE
) &&
2444 !(vport
->fc_flag
& FC_NDISC_ACTIVE
)) {
2445 if (lpfc_rscn_payload_check(vport
, did
)) {
2446 /* If we've already recieved a PLOGI from this NPort
2447 * we don't need to try to discover it again.
2449 if (ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
2452 spin_lock_irq(shost
->host_lock
);
2453 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2454 spin_unlock_irq(shost
->host_lock
);
2456 /* Since this node is marked for discovery,
2457 * delay timeout is not needed.
2459 lpfc_cancel_retry_delay_tmo(vport
, ndlp
);
2463 /* If we've already recieved a PLOGI from this NPort,
2464 * or we are already in the process of discovery on it,
2465 * we don't need to try to discover it again.
2467 if (ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
||
2468 ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
2469 ndlp
->nlp_flag
& NLP_RCV_PLOGI
)
2471 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_NPR_NODE
);
2472 spin_lock_irq(shost
->host_lock
);
2473 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
2474 spin_unlock_irq(shost
->host_lock
);
2479 /* Build a list of nodes to discover based on the loopmap */
2481 lpfc_disc_list_loopmap(struct lpfc_vport
*vport
)
2483 struct lpfc_hba
*phba
= vport
->phba
;
2485 uint32_t alpa
, index
;
2487 if (!lpfc_is_link_up(phba
))
2490 if (phba
->fc_topology
!= TOPOLOGY_LOOP
)
2493 /* Check for loop map present or not */
2494 if (phba
->alpa_map
[0]) {
2495 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
2496 alpa
= phba
->alpa_map
[j
];
2497 if (((vport
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0))
2499 lpfc_setup_disc_node(vport
, alpa
);
2502 /* No alpamap, so try all alpa's */
2503 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
2504 /* If cfg_scan_down is set, start from highest
2505 * ALPA (0xef) to lowest (0x1).
2507 if (vport
->cfg_scan_down
)
2510 index
= FC_MAXLOOP
- j
- 1;
2511 alpa
= lpfcAlpaArray
[index
];
2512 if ((vport
->fc_myDID
& 0xff) == alpa
)
2514 lpfc_setup_disc_node(vport
, alpa
);
2521 lpfc_issue_clear_la(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
2524 struct lpfc_sli
*psli
= &phba
->sli
;
2525 struct lpfc_sli_ring
*extra_ring
= &psli
->ring
[psli
->extra_ring
];
2526 struct lpfc_sli_ring
*fcp_ring
= &psli
->ring
[psli
->fcp_ring
];
2527 struct lpfc_sli_ring
*next_ring
= &psli
->ring
[psli
->next_ring
];
2531 * if it's not a physical port or if we already send
2532 * clear_la then don't send it.
2534 if ((phba
->link_state
>= LPFC_CLEAR_LA
) ||
2535 (vport
->port_type
!= LPFC_PHYSICAL_PORT
))
2538 /* Link up discovery */
2539 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
)) != NULL
) {
2540 phba
->link_state
= LPFC_CLEAR_LA
;
2541 lpfc_clear_la(phba
, mbox
);
2542 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
2543 mbox
->vport
= vport
;
2544 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
2545 if (rc
== MBX_NOT_FINISHED
) {
2546 mempool_free(mbox
, phba
->mbox_mem_pool
);
2547 lpfc_disc_flush_list(vport
);
2548 extra_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
2549 fcp_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
2550 next_ring
->flag
&= ~LPFC_STOP_IOCB_EVENT
;
2551 phba
->link_state
= LPFC_HBA_ERROR
;
2556 /* Reg_vpi to tell firmware to resume normal operations */
2558 lpfc_issue_reg_vpi(struct lpfc_hba
*phba
, struct lpfc_vport
*vport
)
2560 LPFC_MBOXQ_t
*regvpimbox
;
2562 regvpimbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2564 lpfc_reg_vpi(phba
, vport
->vpi
, vport
->fc_myDID
, regvpimbox
);
2565 regvpimbox
->mbox_cmpl
= lpfc_mbx_cmpl_reg_vpi
;
2566 regvpimbox
->vport
= vport
;
2567 if (lpfc_sli_issue_mbox(phba
, regvpimbox
, MBX_NOWAIT
)
2568 == MBX_NOT_FINISHED
) {
2569 mempool_free(regvpimbox
, phba
->mbox_mem_pool
);
2574 /* Start Link up / RSCN discovery on NPR nodes */
2576 lpfc_disc_start(struct lpfc_vport
*vport
)
2578 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2579 struct lpfc_hba
*phba
= vport
->phba
;
2581 uint32_t clear_la_pending
;
2584 if (!lpfc_is_link_up(phba
))
2587 if (phba
->link_state
== LPFC_CLEAR_LA
)
2588 clear_la_pending
= 1;
2590 clear_la_pending
= 0;
2592 if (vport
->port_state
< LPFC_VPORT_READY
)
2593 vport
->port_state
= LPFC_DISC_AUTH
;
2595 lpfc_set_disctmo(vport
);
2597 if (vport
->fc_prevDID
== vport
->fc_myDID
)
2602 vport
->fc_prevDID
= vport
->fc_myDID
;
2603 vport
->num_disc_nodes
= 0;
2605 /* Start Discovery state <hba_state> */
2606 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_DISCOVERY
,
2607 "0202 Start Discovery hba state x%x "
2608 "Data: x%x x%x x%x\n",
2609 vport
->port_state
, vport
->fc_flag
, vport
->fc_plogi_cnt
,
2610 vport
->fc_adisc_cnt
);
2612 /* First do ADISCs - if any */
2613 num_sent
= lpfc_els_disc_adisc(vport
);
2619 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2620 * continue discovery.
2622 if ((phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
) &&
2623 !(vport
->fc_flag
& FC_PT2PT
) &&
2624 !(vport
->fc_flag
& FC_RSCN_MODE
)) {
2625 lpfc_issue_reg_vpi(phba
, vport
);
2630 * For SLI2, we need to set port_state to READY and continue
2633 if (vport
->port_state
< LPFC_VPORT_READY
&& !clear_la_pending
) {
2634 /* If we get here, there is nothing to ADISC */
2635 if (vport
->port_type
== LPFC_PHYSICAL_PORT
)
2636 lpfc_issue_clear_la(phba
, vport
);
2638 if (!(vport
->fc_flag
& FC_ABORT_DISCOVERY
)) {
2639 vport
->num_disc_nodes
= 0;
2640 /* go thru NPR nodes and issue ELS PLOGIs */
2641 if (vport
->fc_npr_cnt
)
2642 lpfc_els_disc_plogi(vport
);
2644 if (!vport
->num_disc_nodes
) {
2645 spin_lock_irq(shost
->host_lock
);
2646 vport
->fc_flag
&= ~FC_NDISC_ACTIVE
;
2647 spin_unlock_irq(shost
->host_lock
);
2648 lpfc_can_disctmo(vport
);
2651 vport
->port_state
= LPFC_VPORT_READY
;
2653 /* Next do PLOGIs - if any */
2654 num_sent
= lpfc_els_disc_plogi(vport
);
2659 if (vport
->fc_flag
& FC_RSCN_MODE
) {
2660 /* Check to see if more RSCNs came in while we
2661 * were processing this one.
2663 if ((vport
->fc_rscn_id_cnt
== 0) &&
2664 (!(vport
->fc_flag
& FC_RSCN_DISCOVERY
))) {
2665 spin_lock_irq(shost
->host_lock
);
2666 vport
->fc_flag
&= ~FC_RSCN_MODE
;
2667 spin_unlock_irq(shost
->host_lock
);
2668 lpfc_can_disctmo(vport
);
2670 lpfc_els_handle_rscn(vport
);
2677 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2678 * ring the match the sppecified nodelist.
2681 lpfc_free_tx(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
2683 LIST_HEAD(completions
);
2684 struct lpfc_sli
*psli
;
2686 struct lpfc_iocbq
*iocb
, *next_iocb
;
2687 struct lpfc_sli_ring
*pring
;
2690 pring
= &psli
->ring
[LPFC_ELS_RING
];
2692 /* Error matching iocb on txq or txcmplq
2693 * First check the txq.
2695 spin_lock_irq(&phba
->hbalock
);
2696 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
2697 if (iocb
->context1
!= ndlp
) {
2701 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
2702 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
2704 list_move_tail(&iocb
->list
, &completions
);
2709 /* Next check the txcmplq */
2710 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
2711 if (iocb
->context1
!= ndlp
) {
2715 if (icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
||
2716 icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
) {
2717 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
2720 spin_unlock_irq(&phba
->hbalock
);
2722 while (!list_empty(&completions
)) {
2723 iocb
= list_get_first(&completions
, struct lpfc_iocbq
, list
);
2724 list_del_init(&iocb
->list
);
2726 if (!iocb
->iocb_cmpl
)
2727 lpfc_sli_release_iocbq(phba
, iocb
);
2730 icmd
->ulpStatus
= IOSTAT_LOCAL_REJECT
;
2731 icmd
->un
.ulpWord
[4] = IOERR_SLI_ABORTED
;
2732 (iocb
->iocb_cmpl
) (phba
, iocb
, iocb
);
2738 lpfc_disc_flush_list(struct lpfc_vport
*vport
)
2740 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2741 struct lpfc_hba
*phba
= vport
->phba
;
2743 if (vport
->fc_plogi_cnt
|| vport
->fc_adisc_cnt
) {
2744 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
2746 if (!NLP_CHK_NODE_ACT(ndlp
))
2748 if (ndlp
->nlp_state
== NLP_STE_PLOGI_ISSUE
||
2749 ndlp
->nlp_state
== NLP_STE_ADISC_ISSUE
) {
2750 lpfc_free_tx(phba
, ndlp
);
2757 lpfc_cleanup_discovery_resources(struct lpfc_vport
*vport
)
2759 lpfc_els_flush_rscn(vport
);
2760 lpfc_els_flush_cmd(vport
);
2761 lpfc_disc_flush_list(vport
);
2764 /*****************************************************************************/
2766 * NAME: lpfc_disc_timeout
2768 * FUNCTION: Fibre Channel driver discovery timeout routine.
2770 * EXECUTION ENVIRONMENT: interrupt only
2778 /*****************************************************************************/
2780 lpfc_disc_timeout(unsigned long ptr
)
2782 struct lpfc_vport
*vport
= (struct lpfc_vport
*) ptr
;
2783 struct lpfc_hba
*phba
= vport
->phba
;
2784 uint32_t tmo_posted
;
2785 unsigned long flags
= 0;
2787 if (unlikely(!phba
))
2790 spin_lock_irqsave(&vport
->work_port_lock
, flags
);
2791 tmo_posted
= vport
->work_port_events
& WORKER_DISC_TMO
;
2793 vport
->work_port_events
|= WORKER_DISC_TMO
;
2794 spin_unlock_irqrestore(&vport
->work_port_lock
, flags
);
2797 lpfc_worker_wake_up(phba
);
2802 lpfc_disc_timeout_handler(struct lpfc_vport
*vport
)
2804 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
2805 struct lpfc_hba
*phba
= vport
->phba
;
2806 struct lpfc_sli
*psli
= &phba
->sli
;
2807 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2808 LPFC_MBOXQ_t
*initlinkmbox
;
2809 int rc
, clrlaerr
= 0;
2811 if (!(vport
->fc_flag
& FC_DISC_TMO
))
2814 spin_lock_irq(shost
->host_lock
);
2815 vport
->fc_flag
&= ~FC_DISC_TMO
;
2816 spin_unlock_irq(shost
->host_lock
);
2818 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_ELS_CMD
,
2819 "disc timeout: state:x%x rtry:x%x flg:x%x",
2820 vport
->port_state
, vport
->fc_ns_retry
, vport
->fc_flag
);
2822 switch (vport
->port_state
) {
2824 case LPFC_LOCAL_CFG_LINK
:
2825 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2829 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_DISCOVERY
,
2830 "0221 FAN timeout\n");
2831 /* Start discovery by sending FLOGI, clean up old rpis */
2832 list_for_each_entry_safe(ndlp
, next_ndlp
, &vport
->fc_nodes
,
2834 if (!NLP_CHK_NODE_ACT(ndlp
))
2836 if (ndlp
->nlp_state
!= NLP_STE_NPR_NODE
)
2838 if (ndlp
->nlp_type
& NLP_FABRIC
) {
2839 /* Clean up the ndlp on Fabric connections */
2840 lpfc_drop_node(vport
, ndlp
);
2842 } else if (!(ndlp
->nlp_flag
& NLP_NPR_ADISC
)) {
2843 /* Fail outstanding IO now since device
2844 * is marked for PLOGI.
2846 lpfc_unreg_rpi(vport
, ndlp
);
2849 if (vport
->port_state
!= LPFC_FLOGI
) {
2850 lpfc_initial_flogi(vport
);
2857 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2858 /* Initial FLOGI timeout */
2859 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2860 "0222 Initial %s timeout\n",
2861 vport
->vpi
? "FDISC" : "FLOGI");
2863 /* Assume no Fabric and go on with discovery.
2864 * Check for outstanding ELS FLOGI to abort.
2867 /* FLOGI failed, so just use loop map to make discovery list */
2868 lpfc_disc_list_loopmap(vport
);
2870 /* Start discovery */
2871 lpfc_disc_start(vport
);
2874 case LPFC_FABRIC_CFG_LINK
:
2875 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2877 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2878 "0223 Timeout while waiting for "
2879 "NameServer login\n");
2880 /* Next look for NameServer ndlp */
2881 ndlp
= lpfc_findnode_did(vport
, NameServer_DID
);
2882 if (ndlp
&& NLP_CHK_NODE_ACT(ndlp
))
2883 lpfc_els_abort(phba
, ndlp
);
2885 /* ReStart discovery */
2889 /* Check for wait for NameServer Rsp timeout */
2890 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2891 "0224 NameServer Query timeout "
2893 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2895 if (vport
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
2896 /* Try it one more time */
2897 vport
->fc_ns_retry
++;
2898 rc
= lpfc_ns_cmd(vport
, SLI_CTNS_GID_FT
,
2899 vport
->fc_ns_retry
, 0);
2903 vport
->fc_ns_retry
= 0;
2907 * Discovery is over.
2908 * set port_state to PORT_READY if SLI2.
2909 * cmpl_reg_vpi will set port_state to READY for SLI3.
2911 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2912 lpfc_issue_reg_vpi(phba
, vport
);
2913 else { /* NPIV Not enabled */
2914 lpfc_issue_clear_la(phba
, vport
);
2915 vport
->port_state
= LPFC_VPORT_READY
;
2918 /* Setup and issue mailbox INITIALIZE LINK command */
2919 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2920 if (!initlinkmbox
) {
2921 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2922 "0206 Device Discovery "
2923 "completion error\n");
2924 phba
->link_state
= LPFC_HBA_ERROR
;
2928 lpfc_linkdown(phba
);
2929 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
2930 phba
->cfg_link_speed
);
2931 initlinkmbox
->mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
2932 initlinkmbox
->vport
= vport
;
2933 initlinkmbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2934 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
, MBX_NOWAIT
);
2935 lpfc_set_loopback_flag(phba
);
2936 if (rc
== MBX_NOT_FINISHED
)
2937 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
2941 case LPFC_DISC_AUTH
:
2942 /* Node Authentication timeout */
2943 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2944 "0227 Node Authentication timeout\n");
2945 lpfc_disc_flush_list(vport
);
2948 * set port_state to PORT_READY if SLI2.
2949 * cmpl_reg_vpi will set port_state to READY for SLI3.
2951 if (phba
->sli3_options
& LPFC_SLI3_NPIV_ENABLED
)
2952 lpfc_issue_reg_vpi(phba
, vport
);
2953 else { /* NPIV Not enabled */
2954 lpfc_issue_clear_la(phba
, vport
);
2955 vport
->port_state
= LPFC_VPORT_READY
;
2959 case LPFC_VPORT_READY
:
2960 if (vport
->fc_flag
& FC_RSCN_MODE
) {
2961 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2962 "0231 RSCN timeout Data: x%x "
2964 vport
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2966 /* Cleanup any outstanding ELS commands */
2967 lpfc_els_flush_cmd(vport
);
2969 lpfc_els_flush_rscn(vport
);
2970 lpfc_disc_flush_list(vport
);
2975 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2976 "0273 Unexpected discovery timeout, "
2977 "vport State x%x\n", vport
->port_state
);
2981 switch (phba
->link_state
) {
2983 /* CLEAR LA timeout */
2984 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2985 "0228 CLEAR LA timeout\n");
2990 lpfc_issue_clear_la(phba
, vport
);
2992 case LPFC_LINK_UNKNOWN
:
2993 case LPFC_WARM_START
:
2994 case LPFC_INIT_START
:
2995 case LPFC_INIT_MBX_CMDS
:
2996 case LPFC_LINK_DOWN
:
2997 case LPFC_HBA_ERROR
:
2998 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_DISCOVERY
,
2999 "0230 Unexpected timeout, hba link "
3000 "state x%x\n", phba
->link_state
);
3004 case LPFC_HBA_READY
:
3009 lpfc_disc_flush_list(vport
);
3010 psli
->ring
[(psli
->extra_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
3011 psli
->ring
[(psli
->fcp_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
3012 psli
->ring
[(psli
->next_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
3013 vport
->port_state
= LPFC_VPORT_READY
;
3020 * This routine handles processing a NameServer REG_LOGIN mailbox
3021 * command upon completion. It is setup in the LPFC_MBOXQ
3022 * as the completion routine when the command is
3023 * handed off to the SLI layer.
3026 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
3028 MAILBOX_t
*mb
= &pmb
->mb
;
3029 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
3030 struct lpfc_nodelist
*ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
3031 struct lpfc_vport
*vport
= pmb
->vport
;
3033 pmb
->context1
= NULL
;
3035 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
3036 ndlp
->nlp_type
|= NLP_FABRIC
;
3037 lpfc_nlp_set_state(vport
, ndlp
, NLP_STE_UNMAPPED_NODE
);
3040 * Start issuing Fabric-Device Management Interface (FDMI) command to
3041 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
3042 * fdmi-on=2 (supporting RPA/hostnmae)
3045 if (vport
->cfg_fdmi_on
== 1)
3046 lpfc_fdmi_cmd(vport
, ndlp
, SLI_MGMT_DHBA
);
3048 mod_timer(&vport
->fc_fdmitmo
, jiffies
+ HZ
* 60);
3050 /* decrement the node reference count held for this callback
3054 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
3056 mempool_free(pmb
, phba
->mbox_mem_pool
);
3062 lpfc_filter_by_rpi(struct lpfc_nodelist
*ndlp
, void *param
)
3064 uint16_t *rpi
= param
;
3066 return ndlp
->nlp_rpi
== *rpi
;
3070 lpfc_filter_by_wwpn(struct lpfc_nodelist
*ndlp
, void *param
)
3072 return memcmp(&ndlp
->nlp_portname
, param
,
3073 sizeof(ndlp
->nlp_portname
)) == 0;
3076 static struct lpfc_nodelist
*
3077 __lpfc_find_node(struct lpfc_vport
*vport
, node_filter filter
, void *param
)
3079 struct lpfc_nodelist
*ndlp
;
3081 list_for_each_entry(ndlp
, &vport
->fc_nodes
, nlp_listp
) {
3082 if (filter(ndlp
, param
))
3089 * This routine looks up the ndlp lists for the given RPI. If rpi found it
3090 * returns the node list element pointer else return NULL.
3092 struct lpfc_nodelist
*
3093 __lpfc_findnode_rpi(struct lpfc_vport
*vport
, uint16_t rpi
)
3095 return __lpfc_find_node(vport
, lpfc_filter_by_rpi
, &rpi
);
3099 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
3100 * returns the node element list pointer else return NULL.
3102 struct lpfc_nodelist
*
3103 lpfc_findnode_wwpn(struct lpfc_vport
*vport
, struct lpfc_name
*wwpn
)
3105 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
3106 struct lpfc_nodelist
*ndlp
;
3108 spin_lock_irq(shost
->host_lock
);
3109 ndlp
= __lpfc_find_node(vport
, lpfc_filter_by_wwpn
, wwpn
);
3110 spin_unlock_irq(shost
->host_lock
);
3115 lpfc_nlp_init(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
,
3118 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
3119 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
3120 INIT_LIST_HEAD(&ndlp
->dev_loss_evt
.evt_listp
);
3121 init_timer(&ndlp
->nlp_delayfunc
);
3122 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
3123 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
3124 ndlp
->nlp_DID
= did
;
3125 ndlp
->vport
= vport
;
3126 ndlp
->nlp_sid
= NLP_NO_SID
;
3127 INIT_LIST_HEAD(&ndlp
->nlp_listp
);
3128 kref_init(&ndlp
->kref
);
3129 NLP_INT_NODE_ACT(ndlp
);
3130 atomic_set(&ndlp
->cmd_pending
, 0);
3131 ndlp
->cmd_qdepth
= LPFC_MAX_TGT_QDEPTH
;
3133 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_NODE
,
3134 "node init: did:x%x",
3135 ndlp
->nlp_DID
, 0, 0);
3140 /* This routine releases all resources associated with a specifc NPort's ndlp
3141 * and mempool_free's the nodelist.
3144 lpfc_nlp_release(struct kref
*kref
)
3146 struct lpfc_hba
*phba
;
3147 unsigned long flags
;
3148 struct lpfc_nodelist
*ndlp
= container_of(kref
, struct lpfc_nodelist
,
3151 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
3152 "node release: did:x%x flg:x%x type:x%x",
3153 ndlp
->nlp_DID
, ndlp
->nlp_flag
, ndlp
->nlp_type
);
3155 lpfc_printf_vlog(ndlp
->vport
, KERN_INFO
, LOG_NODE
,
3156 "0279 lpfc_nlp_release: ndlp:x%p "
3157 "usgmap:x%x refcnt:%d\n",
3158 (void *)ndlp
, ndlp
->nlp_usg_map
,
3159 atomic_read(&ndlp
->kref
.refcount
));
3161 /* remove ndlp from action. */
3162 lpfc_nlp_remove(ndlp
->vport
, ndlp
);
3164 /* clear the ndlp active flag for all release cases */
3165 phba
= ndlp
->vport
->phba
;
3166 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
3167 NLP_CLR_NODE_ACT(ndlp
);
3168 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
3170 /* free ndlp memory for final ndlp release */
3171 if (NLP_CHK_FREE_REQ(ndlp
)) {
3172 kfree(ndlp
->lat_data
);
3173 mempool_free(ndlp
, ndlp
->vport
->phba
->nlp_mem_pool
);
3177 /* This routine bumps the reference count for a ndlp structure to ensure
3178 * that one discovery thread won't free a ndlp while another discovery thread
3181 struct lpfc_nodelist
*
3182 lpfc_nlp_get(struct lpfc_nodelist
*ndlp
)
3184 struct lpfc_hba
*phba
;
3185 unsigned long flags
;
3188 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
3189 "node get: did:x%x flg:x%x refcnt:x%x",
3190 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3191 atomic_read(&ndlp
->kref
.refcount
));
3192 /* The check of ndlp usage to prevent incrementing the
3193 * ndlp reference count that is in the process of being
3196 phba
= ndlp
->vport
->phba
;
3197 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
3198 if (!NLP_CHK_NODE_ACT(ndlp
) || NLP_CHK_FREE_ACK(ndlp
)) {
3199 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
3200 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
3201 "0276 lpfc_nlp_get: ndlp:x%p "
3202 "usgmap:x%x refcnt:%d\n",
3203 (void *)ndlp
, ndlp
->nlp_usg_map
,
3204 atomic_read(&ndlp
->kref
.refcount
));
3207 kref_get(&ndlp
->kref
);
3208 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
3213 /* This routine decrements the reference count for a ndlp structure. If the
3214 * count goes to 0, this indicates the the associated nodelist should be
3215 * freed. Returning 1 indicates the ndlp resource has been released; on the
3216 * other hand, returning 0 indicates the ndlp resource has not been released
3220 lpfc_nlp_put(struct lpfc_nodelist
*ndlp
)
3222 struct lpfc_hba
*phba
;
3223 unsigned long flags
;
3228 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
3229 "node put: did:x%x flg:x%x refcnt:x%x",
3230 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3231 atomic_read(&ndlp
->kref
.refcount
));
3232 phba
= ndlp
->vport
->phba
;
3233 spin_lock_irqsave(&phba
->ndlp_lock
, flags
);
3234 /* Check the ndlp memory free acknowledge flag to avoid the
3235 * possible race condition that kref_put got invoked again
3236 * after previous one has done ndlp memory free.
3238 if (NLP_CHK_FREE_ACK(ndlp
)) {
3239 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
3240 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
3241 "0274 lpfc_nlp_put: ndlp:x%p "
3242 "usgmap:x%x refcnt:%d\n",
3243 (void *)ndlp
, ndlp
->nlp_usg_map
,
3244 atomic_read(&ndlp
->kref
.refcount
));
3247 /* Check the ndlp inactivate log flag to avoid the possible
3248 * race condition that kref_put got invoked again after ndlp
3249 * is already in inactivating state.
3251 if (NLP_CHK_IACT_REQ(ndlp
)) {
3252 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
3253 lpfc_printf_vlog(ndlp
->vport
, KERN_WARNING
, LOG_NODE
,
3254 "0275 lpfc_nlp_put: ndlp:x%p "
3255 "usgmap:x%x refcnt:%d\n",
3256 (void *)ndlp
, ndlp
->nlp_usg_map
,
3257 atomic_read(&ndlp
->kref
.refcount
));
3260 /* For last put, mark the ndlp usage flags to make sure no
3261 * other kref_get and kref_put on the same ndlp shall get
3262 * in between the process when the final kref_put has been
3263 * invoked on this ndlp.
3265 if (atomic_read(&ndlp
->kref
.refcount
) == 1) {
3266 /* Indicate ndlp is put to inactive state. */
3267 NLP_SET_IACT_REQ(ndlp
);
3268 /* Acknowledge ndlp memory free has been seen. */
3269 if (NLP_CHK_FREE_REQ(ndlp
))
3270 NLP_SET_FREE_ACK(ndlp
);
3272 spin_unlock_irqrestore(&phba
->ndlp_lock
, flags
);
3273 /* Note, the kref_put returns 1 when decrementing a reference
3274 * count that was 1, it invokes the release callback function,
3275 * but it still left the reference count as 1 (not actually
3276 * performs the last decrementation). Otherwise, it actually
3277 * decrements the reference count and returns 0.
3279 return kref_put(&ndlp
->kref
, lpfc_nlp_release
);
3282 /* This routine free's the specified nodelist if it is not in use
3283 * by any other discovery thread. This routine returns 1 if the
3284 * ndlp has been freed. A return value of 0 indicates the ndlp is
3285 * not yet been released.
3288 lpfc_nlp_not_used(struct lpfc_nodelist
*ndlp
)
3290 lpfc_debugfs_disc_trc(ndlp
->vport
, LPFC_DISC_TRC_NODE
,
3291 "node not used: did:x%x flg:x%x refcnt:x%x",
3292 ndlp
->nlp_DID
, ndlp
->nlp_flag
,
3293 atomic_read(&ndlp
->kref
.refcount
));
3294 if (atomic_read(&ndlp
->kref
.refcount
) == 1)
3295 if (lpfc_nlp_put(ndlp
))