1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 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"
40 /* AlpaArray for assignment of scsid for scan-down and bind_method */
41 static uint8_t lpfcAlpaArray
[] = {
42 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
43 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
44 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
45 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
46 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
47 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
48 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
49 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
50 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
51 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
52 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
53 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
54 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
57 static void lpfc_disc_timeout_handler(struct lpfc_hba
*);
60 lpfc_process_nodev_timeout(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
64 spin_lock_irq(phba
->host
->host_lock
);
65 if (!(ndlp
->nlp_flag
& NLP_NODEV_TMO
)) {
66 spin_unlock_irq(phba
->host
->host_lock
);
70 ndlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
72 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
74 /* flush the target */
75 lpfc_sli_abort_iocb(phba
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
76 ndlp
->nlp_sid
, 0, 0, LPFC_CTX_TGT
);
78 spin_unlock_irq(phba
->host
->host_lock
);
81 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
82 "%d:0203 Nodev timeout on NPort x%x "
83 "Data: x%x x%x x%x\n",
84 phba
->brd_no
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
85 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
87 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
88 "%d:0204 Nodev timeout on NPort x%x "
89 "Data: x%x x%x x%x\n",
90 phba
->brd_no
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
91 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
94 lpfc_disc_state_machine(phba
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
99 lpfc_work_list_done(struct lpfc_hba
* phba
)
101 struct lpfc_work_evt
*evtp
= NULL
;
102 struct lpfc_nodelist
*ndlp
;
105 spin_lock_irq(phba
->host
->host_lock
);
106 while(!list_empty(&phba
->work_list
)) {
107 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
109 spin_unlock_irq(phba
->host
->host_lock
);
112 case LPFC_EVT_NODEV_TMO
:
113 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
114 lpfc_process_nodev_timeout(phba
, ndlp
);
117 case LPFC_EVT_ELS_RETRY
:
118 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
119 lpfc_els_retry_delay_handler(ndlp
);
122 case LPFC_EVT_ONLINE
:
123 *(int *)(evtp
->evt_arg1
) = lpfc_online(phba
);
124 complete((struct completion
*)(evtp
->evt_arg2
));
126 case LPFC_EVT_OFFLINE
:
127 *(int *)(evtp
->evt_arg1
) = lpfc_offline(phba
);
128 complete((struct completion
*)(evtp
->evt_arg2
));
133 spin_lock_irq(phba
->host
->host_lock
);
135 spin_unlock_irq(phba
->host
->host_lock
);
140 lpfc_work_done(struct lpfc_hba
* phba
)
142 struct lpfc_sli_ring
*pring
;
146 uint32_t work_hba_events
;
148 spin_lock_irq(phba
->host
->host_lock
);
149 ha_copy
= phba
->work_ha
;
151 work_hba_events
=phba
->work_hba_events
;
152 spin_unlock_irq(phba
->host
->host_lock
);
154 if(ha_copy
& HA_ERATT
)
155 lpfc_handle_eratt(phba
);
157 if(ha_copy
& HA_MBATT
)
158 lpfc_sli_handle_mb_event(phba
);
160 if(ha_copy
& HA_LATT
)
161 lpfc_handle_latt(phba
);
163 if (work_hba_events
& WORKER_DISC_TMO
)
164 lpfc_disc_timeout_handler(phba
);
166 if (work_hba_events
& WORKER_ELS_TMO
)
167 lpfc_els_timeout_handler(phba
);
169 if (work_hba_events
& WORKER_MBOX_TMO
)
170 lpfc_mbox_timeout_handler(phba
);
172 if (work_hba_events
& WORKER_FDMI_TMO
)
173 lpfc_fdmi_tmo_handler(phba
);
175 spin_lock_irq(phba
->host
->host_lock
);
176 phba
->work_hba_events
&= ~work_hba_events
;
177 spin_unlock_irq(phba
->host
->host_lock
);
179 for (i
= 0; i
< phba
->sli
.num_rings
; i
++, ha_copy
>>= 4) {
180 pring
= &phba
->sli
.ring
[i
];
181 if ((ha_copy
& HA_RXATT
)
182 || (pring
->flag
& LPFC_DEFERRED_RING_EVENT
)) {
183 if (pring
->flag
& LPFC_STOP_IOCB_MASK
) {
184 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
186 lpfc_sli_handle_slow_ring_event(phba
, pring
,
189 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
192 * Turn on Ring interrupts
194 spin_lock_irq(phba
->host
->host_lock
);
195 control
= readl(phba
->HCregaddr
);
196 control
|= (HC_R0INT_ENA
<< i
);
197 writel(control
, phba
->HCregaddr
);
198 readl(phba
->HCregaddr
); /* flush */
199 spin_unlock_irq(phba
->host
->host_lock
);
203 lpfc_work_list_done (phba
);
208 check_work_wait_done(struct lpfc_hba
*phba
) {
210 spin_lock_irq(phba
->host
->host_lock
);
212 phba
->work_hba_events
||
213 (!list_empty(&phba
->work_list
)) ||
214 kthread_should_stop()) {
215 spin_unlock_irq(phba
->host
->host_lock
);
218 spin_unlock_irq(phba
->host
->host_lock
);
224 lpfc_do_work(void *p
)
226 struct lpfc_hba
*phba
= p
;
228 DECLARE_WAIT_QUEUE_HEAD(work_waitq
);
230 set_user_nice(current
, -20);
231 phba
->work_wait
= &work_waitq
;
235 rc
= wait_event_interruptible(work_waitq
,
236 check_work_wait_done(phba
));
239 if (kthread_should_stop())
242 lpfc_work_done(phba
);
245 phba
->work_wait
= NULL
;
250 * This is only called to handle FC worker events. Since this a rare
251 * occurance, we allocate a struct lpfc_work_evt structure here instead of
252 * embedding it in the IOCB.
255 lpfc_workq_post_event(struct lpfc_hba
* phba
, void *arg1
, void *arg2
,
258 struct lpfc_work_evt
*evtp
;
261 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
262 * be queued to worker thread for processing
264 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_KERNEL
);
268 evtp
->evt_arg1
= arg1
;
269 evtp
->evt_arg2
= arg2
;
272 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
273 spin_lock_irq(phba
->host
->host_lock
);
275 wake_up(phba
->work_wait
);
276 spin_unlock_irq(phba
->host
->host_lock
);
282 lpfc_linkdown(struct lpfc_hba
* phba
)
284 struct lpfc_sli
*psli
;
285 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
286 struct list_head
*listp
;
287 struct list_head
*node_list
[7];
293 spin_lock_irq(phba
->host
->host_lock
);
294 phba
->hba_state
= LPFC_LINK_DOWN
;
295 spin_unlock_irq(phba
->host
->host_lock
);
297 /* Clean up any firmware default rpi's */
298 if ((mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
299 lpfc_unreg_did(phba
, 0xffffffff, mb
);
300 mb
->mbox_cmpl
=lpfc_sli_def_mbox_cmpl
;
301 if (lpfc_sli_issue_mbox(phba
, mb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
302 == MBX_NOT_FINISHED
) {
303 mempool_free( mb
, phba
->mbox_mem_pool
);
307 /* Cleanup any outstanding RSCN activity */
308 lpfc_els_flush_rscn(phba
);
310 /* Cleanup any outstanding ELS commands */
311 lpfc_els_flush_cmd(phba
);
313 /* Issue a LINK DOWN event to all nodes */
314 node_list
[0] = &phba
->fc_npr_list
; /* MUST do this list first */
315 node_list
[1] = &phba
->fc_nlpmap_list
;
316 node_list
[2] = &phba
->fc_nlpunmap_list
;
317 node_list
[3] = &phba
->fc_prli_list
;
318 node_list
[4] = &phba
->fc_reglogin_list
;
319 node_list
[5] = &phba
->fc_adisc_list
;
320 node_list
[6] = &phba
->fc_plogi_list
;
321 for (i
= 0; i
< 7; i
++) {
322 listp
= node_list
[i
];
323 if (list_empty(listp
))
326 list_for_each_entry_safe(ndlp
, next_ndlp
, listp
, nlp_listp
) {
327 /* Fabric nodes are not handled thru state machine for
329 if (ndlp
->nlp_type
& NLP_FABRIC
) {
330 /* Remove ALL Fabric nodes except Fabric_DID */
331 if (ndlp
->nlp_DID
!= Fabric_DID
) {
332 /* Take it off current list and free */
333 lpfc_nlp_list(phba
, ndlp
,
339 rc
= lpfc_disc_state_machine(phba
, ndlp
, NULL
,
340 NLP_EVT_DEVICE_RECOVERY
);
342 /* Check config parameter use-adisc or FCP-2 */
343 if ((rc
!= NLP_STE_FREED_NODE
) &&
344 (phba
->cfg_use_adisc
== 0) &&
345 !(ndlp
->nlp_fcp_info
&
347 /* We know we will have to relogin, so
348 * unreglogin the rpi right now to fail
349 * any outstanding I/Os quickly.
351 lpfc_unreg_rpi(phba
, ndlp
);
357 /* free any ndlp's on unused list */
358 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_unused_list
,
360 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
363 /* Setup myDID for link up if we are in pt2pt mode */
364 if (phba
->fc_flag
& FC_PT2PT
) {
366 if ((mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
367 lpfc_config_link(phba
, mb
);
368 mb
->mbox_cmpl
=lpfc_sli_def_mbox_cmpl
;
369 if (lpfc_sli_issue_mbox
370 (phba
, mb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
371 == MBX_NOT_FINISHED
) {
372 mempool_free( mb
, phba
->mbox_mem_pool
);
375 spin_lock_irq(phba
->host
->host_lock
);
376 phba
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
377 spin_unlock_irq(phba
->host
->host_lock
);
379 spin_lock_irq(phba
->host
->host_lock
);
380 phba
->fc_flag
&= ~FC_LBIT
;
381 spin_unlock_irq(phba
->host
->host_lock
);
383 /* Turn off discovery timer if its running */
384 lpfc_can_disctmo(phba
);
386 /* Must process IOCBs on all rings to handle ABORTed I/Os */
391 lpfc_linkup(struct lpfc_hba
* phba
)
393 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
395 spin_lock_irq(phba
->host
->host_lock
);
396 phba
->hba_state
= LPFC_LINK_UP
;
397 phba
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
398 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
399 phba
->fc_flag
|= FC_NDISC_ACTIVE
;
400 phba
->fc_ns_retry
= 0;
401 spin_unlock_irq(phba
->host
->host_lock
);
405 * Clean up old Fabric NLP_FABRIC logins.
407 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_nlpunmap_list
,
409 if (ndlp
->nlp_DID
== Fabric_DID
) {
410 /* Take it off current list and free */
411 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
415 /* free any ndlp's on unused list */
416 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_unused_list
,
418 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
425 * This routine handles processing a CLEAR_LA mailbox
426 * command upon completion. It is setup in the LPFC_MBOXQ
427 * as the completion routine when the command is
428 * handed off to the SLI layer.
431 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
433 struct lpfc_sli
*psli
;
439 /* Since we don't do discovery right now, turn these off here */
440 psli
->ring
[psli
->ip_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
441 psli
->ring
[psli
->fcp_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
442 psli
->ring
[psli
->next_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
444 /* Check for error */
445 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
446 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
447 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
448 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
450 phba
->brd_no
, mb
->mbxStatus
, phba
->hba_state
);
452 phba
->hba_state
= LPFC_HBA_ERROR
;
456 if (phba
->fc_flag
& FC_ABORT_DISCOVERY
)
459 phba
->num_disc_nodes
= 0;
460 /* go thru NPR list and issue ELS PLOGIs */
461 if (phba
->fc_npr_cnt
) {
462 lpfc_els_disc_plogi(phba
);
465 if(!phba
->num_disc_nodes
) {
466 spin_lock_irq(phba
->host
->host_lock
);
467 phba
->fc_flag
&= ~FC_NDISC_ACTIVE
;
468 spin_unlock_irq(phba
->host
->host_lock
);
471 phba
->hba_state
= LPFC_HBA_READY
;
474 /* Device Discovery completes */
475 lpfc_printf_log(phba
,
478 "%d:0225 Device Discovery completes\n",
481 mempool_free( pmb
, phba
->mbox_mem_pool
);
483 spin_lock_irq(phba
->host
->host_lock
);
484 phba
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
485 if (phba
->fc_flag
& FC_ESTABLISH_LINK
) {
486 phba
->fc_flag
&= ~FC_ESTABLISH_LINK
;
488 spin_unlock_irq(phba
->host
->host_lock
);
490 del_timer_sync(&phba
->fc_estabtmo
);
492 lpfc_can_disctmo(phba
);
494 /* turn on Link Attention interrupts */
495 spin_lock_irq(phba
->host
->host_lock
);
496 psli
->sli_flag
|= LPFC_PROCESS_LA
;
497 control
= readl(phba
->HCregaddr
);
498 control
|= HC_LAINT_ENA
;
499 writel(control
, phba
->HCregaddr
);
500 readl(phba
->HCregaddr
); /* flush */
501 spin_unlock_irq(phba
->host
->host_lock
);
507 lpfc_mbx_cmpl_config_link(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
509 struct lpfc_sli
*psli
;
514 /* Check for error */
516 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
517 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
518 "%d:0306 CONFIG_LINK mbxStatus error x%x "
520 phba
->brd_no
, mb
->mbxStatus
, phba
->hba_state
);
523 phba
->hba_state
= LPFC_HBA_ERROR
;
527 if (phba
->hba_state
== LPFC_LOCAL_CFG_LINK
) {
528 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
529 /* If we are public loop and L bit was set */
530 if ((phba
->fc_flag
& FC_PUBLIC_LOOP
) &&
531 !(phba
->fc_flag
& FC_LBIT
)) {
532 /* Need to wait for FAN - use discovery timer
533 * for timeout. hba_state is identically
534 * LPFC_LOCAL_CFG_LINK while waiting for FAN
536 lpfc_set_disctmo(phba
);
537 mempool_free( pmb
, phba
->mbox_mem_pool
);
542 /* Start discovery by sending a FLOGI hba_state is identically
543 * LPFC_FLOGI while waiting for FLOGI cmpl
545 phba
->hba_state
= LPFC_FLOGI
;
546 lpfc_set_disctmo(phba
);
547 lpfc_initial_flogi(phba
);
548 mempool_free( pmb
, phba
->mbox_mem_pool
);
551 if (phba
->hba_state
== LPFC_FABRIC_CFG_LINK
) {
552 mempool_free( pmb
, phba
->mbox_mem_pool
);
557 /* CONFIG_LINK bad hba state <hba_state> */
558 lpfc_printf_log(phba
,
561 "%d:0200 CONFIG_LINK bad hba state x%x\n",
562 phba
->brd_no
, phba
->hba_state
);
564 if (phba
->hba_state
!= LPFC_CLEAR_LA
) {
565 lpfc_clear_la(phba
, pmb
);
566 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
567 if (lpfc_sli_issue_mbox(phba
, pmb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
568 == MBX_NOT_FINISHED
) {
569 mempool_free( pmb
, phba
->mbox_mem_pool
);
570 lpfc_disc_flush_list(phba
);
571 psli
->ring
[(psli
->ip_ring
)].flag
&=
572 ~LPFC_STOP_IOCB_EVENT
;
573 psli
->ring
[(psli
->fcp_ring
)].flag
&=
574 ~LPFC_STOP_IOCB_EVENT
;
575 psli
->ring
[(psli
->next_ring
)].flag
&=
576 ~LPFC_STOP_IOCB_EVENT
;
577 phba
->hba_state
= LPFC_HBA_READY
;
580 mempool_free( pmb
, phba
->mbox_mem_pool
);
586 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
588 struct lpfc_sli
*psli
= &phba
->sli
;
589 MAILBOX_t
*mb
= &pmb
->mb
;
590 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
593 /* Check for error */
595 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
596 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
597 "%d:0319 READ_SPARAM mbxStatus error x%x "
599 phba
->brd_no
, mb
->mbxStatus
, phba
->hba_state
);
602 phba
->hba_state
= LPFC_HBA_ERROR
;
606 memcpy((uint8_t *) & phba
->fc_sparam
, (uint8_t *) mp
->virt
,
607 sizeof (struct serv_parm
));
608 memcpy((uint8_t *) & phba
->fc_nodename
,
609 (uint8_t *) & phba
->fc_sparam
.nodeName
,
610 sizeof (struct lpfc_name
));
611 memcpy((uint8_t *) & phba
->fc_portname
,
612 (uint8_t *) & phba
->fc_sparam
.portName
,
613 sizeof (struct lpfc_name
));
614 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
616 mempool_free( pmb
, phba
->mbox_mem_pool
);
620 pmb
->context1
= NULL
;
621 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
623 if (phba
->hba_state
!= LPFC_CLEAR_LA
) {
624 lpfc_clear_la(phba
, pmb
);
625 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
626 if (lpfc_sli_issue_mbox(phba
, pmb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
627 == MBX_NOT_FINISHED
) {
628 mempool_free( pmb
, phba
->mbox_mem_pool
);
629 lpfc_disc_flush_list(phba
);
630 psli
->ring
[(psli
->ip_ring
)].flag
&=
631 ~LPFC_STOP_IOCB_EVENT
;
632 psli
->ring
[(psli
->fcp_ring
)].flag
&=
633 ~LPFC_STOP_IOCB_EVENT
;
634 psli
->ring
[(psli
->next_ring
)].flag
&=
635 ~LPFC_STOP_IOCB_EVENT
;
636 phba
->hba_state
= LPFC_HBA_READY
;
639 mempool_free( pmb
, phba
->mbox_mem_pool
);
645 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, READ_LA_VAR
*la
)
648 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
;
649 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
650 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
652 spin_lock_irq(phba
->host
->host_lock
);
653 switch(la
->UlnkSpeed
) {
655 phba
->fc_linkspeed
= LA_1GHZ_LINK
;
658 phba
->fc_linkspeed
= LA_2GHZ_LINK
;
661 phba
->fc_linkspeed
= LA_4GHZ_LINK
;
664 phba
->fc_linkspeed
= LA_UNKNW_LINK
;
668 phba
->fc_topology
= la
->topology
;
670 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
671 /* Get Loop Map information */
674 phba
->fc_flag
|= FC_LBIT
;
676 phba
->fc_myDID
= la
->granted_AL_PA
;
677 i
= la
->un
.lilpBde64
.tus
.f
.bdeSize
;
680 phba
->alpa_map
[0] = 0;
682 if (phba
->cfg_log_verbose
& LOG_LINK_EVENT
) {
693 numalpa
= phba
->alpa_map
[0];
695 while (j
< numalpa
) {
696 memset(un
.pamap
, 0, 16);
697 for (k
= 1; j
< numalpa
; k
++) {
699 phba
->alpa_map
[j
+ 1];
704 /* Link Up Event ALPA map */
705 lpfc_printf_log(phba
,
708 "%d:1304 Link Up Event "
709 "ALPA map Data: x%x "
712 un
.pa
.wd1
, un
.pa
.wd2
,
713 un
.pa
.wd3
, un
.pa
.wd4
);
718 phba
->fc_myDID
= phba
->fc_pref_DID
;
719 phba
->fc_flag
|= FC_LBIT
;
721 spin_unlock_irq(phba
->host
->host_lock
);
725 lpfc_read_sparam(phba
, sparam_mbox
);
726 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
727 lpfc_sli_issue_mbox(phba
, sparam_mbox
,
728 (MBX_NOWAIT
| MBX_STOP_IOCB
));
732 phba
->hba_state
= LPFC_LOCAL_CFG_LINK
;
733 lpfc_config_link(phba
, cfglink_mbox
);
734 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_config_link
;
735 lpfc_sli_issue_mbox(phba
, cfglink_mbox
,
736 (MBX_NOWAIT
| MBX_STOP_IOCB
));
741 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
) {
743 struct lpfc_sli
*psli
= &phba
->sli
;
747 /* turn on Link Attention interrupts - no CLEAR_LA needed */
748 spin_lock_irq(phba
->host
->host_lock
);
749 psli
->sli_flag
|= LPFC_PROCESS_LA
;
750 control
= readl(phba
->HCregaddr
);
751 control
|= HC_LAINT_ENA
;
752 writel(control
, phba
->HCregaddr
);
753 readl(phba
->HCregaddr
); /* flush */
754 spin_unlock_irq(phba
->host
->host_lock
);
758 * This routine handles processing a READ_LA mailbox
759 * command upon completion. It is setup in the LPFC_MBOXQ
760 * as the completion routine when the command is
761 * handed off to the SLI layer.
764 lpfc_mbx_cmpl_read_la(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
767 MAILBOX_t
*mb
= &pmb
->mb
;
768 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
770 /* Check for error */
772 lpfc_printf_log(phba
,
775 "%d:1307 READ_LA mbox error x%x state x%x\n",
777 mb
->mbxStatus
, phba
->hba_state
);
778 lpfc_mbx_issue_link_down(phba
);
779 phba
->hba_state
= LPFC_HBA_ERROR
;
780 goto lpfc_mbx_cmpl_read_la_free_mbuf
;
783 la
= (READ_LA_VAR
*) & pmb
->mb
.un
.varReadLA
;
785 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
787 if (((phba
->fc_eventTag
+ 1) < la
->eventTag
) ||
788 (phba
->fc_eventTag
== la
->eventTag
)) {
789 phba
->fc_stat
.LinkMultiEvent
++;
790 if (la
->attType
== AT_LINK_UP
) {
791 if (phba
->fc_eventTag
!= 0)
796 phba
->fc_eventTag
= la
->eventTag
;
798 if (la
->attType
== AT_LINK_UP
) {
799 phba
->fc_stat
.LinkUp
++;
800 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
801 "%d:1303 Link Up Event x%x received "
802 "Data: x%x x%x x%x x%x\n",
803 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
804 la
->granted_AL_PA
, la
->UlnkSpeed
,
806 lpfc_mbx_process_link_up(phba
, la
);
808 phba
->fc_stat
.LinkDown
++;
809 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
810 "%d:1305 Link Down Event x%x received "
811 "Data: x%x x%x x%x\n",
812 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
813 phba
->hba_state
, phba
->fc_flag
);
814 lpfc_mbx_issue_link_down(phba
);
817 lpfc_mbx_cmpl_read_la_free_mbuf
:
818 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
820 mempool_free(pmb
, phba
->mbox_mem_pool
);
825 * This routine handles processing a REG_LOGIN mailbox
826 * command upon completion. It is setup in the LPFC_MBOXQ
827 * as the completion routine when the command is
828 * handed off to the SLI layer.
831 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
833 struct lpfc_sli
*psli
;
835 struct lpfc_dmabuf
*mp
;
836 struct lpfc_nodelist
*ndlp
;
841 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
842 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
844 pmb
->context1
= NULL
;
846 /* Good status, call state machine */
847 lpfc_disc_state_machine(phba
, ndlp
, pmb
, NLP_EVT_CMPL_REG_LOGIN
);
848 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
850 mempool_free( pmb
, phba
->mbox_mem_pool
);
856 * This routine handles processing a Fabric REG_LOGIN mailbox
857 * command upon completion. It is setup in the LPFC_MBOXQ
858 * as the completion routine when the command is
859 * handed off to the SLI layer.
862 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
864 struct lpfc_sli
*psli
;
866 struct lpfc_dmabuf
*mp
;
867 struct lpfc_nodelist
*ndlp
;
868 struct lpfc_nodelist
*ndlp_fdmi
;
874 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
875 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
878 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
880 mempool_free( pmb
, phba
->mbox_mem_pool
);
881 mempool_free( ndlp
, phba
->nlp_mem_pool
);
883 /* FLOGI failed, so just use loop map to make discovery list */
884 lpfc_disc_list_loopmap(phba
);
886 /* Start discovery */
887 lpfc_disc_start(phba
);
891 pmb
->context1
= NULL
;
893 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
894 ndlp
->nlp_type
|= NLP_FABRIC
;
895 ndlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
896 lpfc_nlp_list(phba
, ndlp
, NLP_UNMAPPED_LIST
);
898 if (phba
->hba_state
== LPFC_FABRIC_CFG_LINK
) {
899 /* This NPort has been assigned an NPort_ID by the fabric as a
900 * result of the completed fabric login. Issue a State Change
901 * Registration (SCR) ELS request to the fabric controller
902 * (SCR_DID) so that this NPort gets RSCN events from the
905 lpfc_issue_els_scr(phba
, SCR_DID
, 0);
907 /* Allocate a new node instance. If the pool is empty, just
908 * start the discovery process and skip the Nameserver login
909 * process. This is attempted again later on. Otherwise, issue
910 * a Port Login (PLOGI) to the NameServer
912 if ((ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
))
914 lpfc_disc_start(phba
);
916 lpfc_nlp_init(phba
, ndlp
, NameServer_DID
);
917 ndlp
->nlp_type
|= NLP_FABRIC
;
918 ndlp
->nlp_state
= NLP_STE_PLOGI_ISSUE
;
919 lpfc_nlp_list(phba
, ndlp
, NLP_PLOGI_LIST
);
920 lpfc_issue_els_plogi(phba
, ndlp
, 0);
921 if (phba
->cfg_fdmi_on
) {
922 if ((ndlp_fdmi
= mempool_alloc(
925 lpfc_nlp_init(phba
, ndlp_fdmi
,
927 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
928 ndlp_fdmi
->nlp_state
=
930 lpfc_issue_els_plogi(phba
, ndlp_fdmi
,
937 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
939 mempool_free( pmb
, phba
->mbox_mem_pool
);
945 * This routine handles processing a NameServer REG_LOGIN mailbox
946 * command upon completion. It is setup in the LPFC_MBOXQ
947 * as the completion routine when the command is
948 * handed off to the SLI layer.
951 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
953 struct lpfc_sli
*psli
;
955 struct lpfc_dmabuf
*mp
;
956 struct lpfc_nodelist
*ndlp
;
961 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
962 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
965 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
967 mempool_free( pmb
, phba
->mbox_mem_pool
);
968 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
970 /* RegLogin failed, so just use loop map to make discovery
972 lpfc_disc_list_loopmap(phba
);
974 /* Start discovery */
975 lpfc_disc_start(phba
);
979 pmb
->context1
= NULL
;
981 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
982 ndlp
->nlp_type
|= NLP_FABRIC
;
983 ndlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
984 lpfc_nlp_list(phba
, ndlp
, NLP_UNMAPPED_LIST
);
986 if (phba
->hba_state
< LPFC_HBA_READY
) {
987 /* Link up discovery requires Fabrib registration. */
988 lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_RNN_ID
);
989 lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_RSNN_NN
);
990 lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_RFT_ID
);
993 phba
->fc_ns_retry
= 0;
994 /* Good status, issue CT Request to NameServer */
995 if (lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_GID_FT
)) {
996 /* Cannot issue NameServer Query, so finish up discovery */
997 lpfc_disc_start(phba
);
1000 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1002 mempool_free( pmb
, phba
->mbox_mem_pool
);
1008 lpfc_register_remote_port(struct lpfc_hba
* phba
,
1009 struct lpfc_nodelist
* ndlp
)
1011 struct fc_rport
*rport
;
1012 struct lpfc_rport_data
*rdata
;
1013 struct fc_rport_identifiers rport_ids
;
1015 /* Remote port has reappeared. Re-register w/ FC transport */
1016 rport_ids
.node_name
= wwn_to_u64(ndlp
->nlp_nodename
.u
.wwn
);
1017 rport_ids
.port_name
= wwn_to_u64(ndlp
->nlp_portname
.u
.wwn
);
1018 rport_ids
.port_id
= ndlp
->nlp_DID
;
1019 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
1021 ndlp
->rport
= rport
= fc_remote_port_add(phba
->host
, 0, &rport_ids
);
1023 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
1024 "Warning: fc_remote_port_add failed\n");
1028 /* initialize static port data */
1029 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
1030 rport
->supported_classes
= ndlp
->nlp_class_sup
;
1031 if ((rport
->scsi_target_id
!= -1) &&
1032 (rport
->scsi_target_id
< MAX_FCP_TARGET
)) {
1033 ndlp
->nlp_sid
= rport
->scsi_target_id
;
1035 rdata
= rport
->dd_data
;
1036 rdata
->pnode
= ndlp
;
1038 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
1039 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
1040 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
1041 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
1044 if (rport_ids
.roles
!= FC_RPORT_ROLE_UNKNOWN
)
1045 fc_remote_port_rolechg(rport
, rport_ids
.roles
);
1052 lpfc_unregister_remote_port(struct lpfc_hba
* phba
,
1053 struct lpfc_nodelist
* ndlp
)
1055 struct fc_rport
*rport
= ndlp
->rport
;
1056 struct lpfc_rport_data
*rdata
= rport
->dd_data
;
1059 rdata
->pnode
= NULL
;
1060 fc_remote_port_delete(rport
);
1066 lpfc_nlp_list(struct lpfc_hba
* phba
, struct lpfc_nodelist
* nlp
, int list
)
1068 enum { none
, unmapped
, mapped
} rport_add
= none
, rport_del
= none
;
1069 struct lpfc_sli
*psli
;
1072 /* Sanity check to ensure we are not moving to / from the same list */
1073 if ((nlp
->nlp_flag
& NLP_LIST_MASK
) == list
) {
1074 if (list
!= NLP_NO_LIST
)
1078 switch(nlp
->nlp_flag
& NLP_LIST_MASK
) {
1079 case NLP_NO_LIST
: /* Not on any list */
1081 case NLP_UNUSED_LIST
:
1082 phba
->fc_unused_cnt
--;
1083 list_del(&nlp
->nlp_listp
);
1085 case NLP_PLOGI_LIST
:
1086 phba
->fc_plogi_cnt
--;
1087 list_del(&nlp
->nlp_listp
);
1089 case NLP_ADISC_LIST
:
1090 phba
->fc_adisc_cnt
--;
1091 list_del(&nlp
->nlp_listp
);
1093 case NLP_REGLOGIN_LIST
:
1094 phba
->fc_reglogin_cnt
--;
1095 list_del(&nlp
->nlp_listp
);
1098 phba
->fc_prli_cnt
--;
1099 list_del(&nlp
->nlp_listp
);
1101 case NLP_UNMAPPED_LIST
:
1102 phba
->fc_unmap_cnt
--;
1103 list_del(&nlp
->nlp_listp
);
1104 spin_lock_irq(phba
->host
->host_lock
);
1105 nlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
1106 nlp
->nlp_type
&= ~NLP_FC_NODE
;
1107 spin_unlock_irq(phba
->host
->host_lock
);
1108 phba
->nport_event_cnt
++;
1110 rport_del
= unmapped
;
1112 case NLP_MAPPED_LIST
:
1114 list_del(&nlp
->nlp_listp
);
1115 phba
->nport_event_cnt
++;
1121 list_del(&nlp
->nlp_listp
);
1122 /* Stop delay tmo if taking node off NPR list */
1123 if ((nlp
->nlp_flag
& NLP_DELAY_TMO
) &&
1124 (list
!= NLP_NPR_LIST
)) {
1125 spin_lock_irq(phba
->host
->host_lock
);
1126 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
1127 spin_unlock_irq(phba
->host
->host_lock
);
1128 del_timer_sync(&nlp
->nlp_delayfunc
);
1129 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
))
1130 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
1135 spin_lock_irq(phba
->host
->host_lock
);
1136 nlp
->nlp_flag
&= ~NLP_LIST_MASK
;
1137 spin_unlock_irq(phba
->host
->host_lock
);
1139 /* Add NPort <did> to <num> list */
1140 lpfc_printf_log(phba
,
1143 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1145 nlp
->nlp_DID
, list
, nlp
->nlp_flag
);
1148 case NLP_NO_LIST
: /* No list, just remove it */
1149 lpfc_nlp_remove(phba
, nlp
);
1150 /* as node removed - stop further transport calls */
1153 case NLP_UNUSED_LIST
:
1154 spin_lock_irq(phba
->host
->host_lock
);
1155 nlp
->nlp_flag
|= list
;
1156 spin_unlock_irq(phba
->host
->host_lock
);
1157 /* Put it at the end of the unused list */
1158 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_unused_list
);
1159 phba
->fc_unused_cnt
++;
1161 case NLP_PLOGI_LIST
:
1162 spin_lock_irq(phba
->host
->host_lock
);
1163 nlp
->nlp_flag
|= list
;
1164 spin_unlock_irq(phba
->host
->host_lock
);
1165 /* Put it at the end of the plogi list */
1166 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_plogi_list
);
1167 phba
->fc_plogi_cnt
++;
1169 case NLP_ADISC_LIST
:
1170 spin_lock_irq(phba
->host
->host_lock
);
1171 nlp
->nlp_flag
|= list
;
1172 spin_unlock_irq(phba
->host
->host_lock
);
1173 /* Put it at the end of the adisc list */
1174 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_adisc_list
);
1175 phba
->fc_adisc_cnt
++;
1177 case NLP_REGLOGIN_LIST
:
1178 spin_lock_irq(phba
->host
->host_lock
);
1179 nlp
->nlp_flag
|= list
;
1180 spin_unlock_irq(phba
->host
->host_lock
);
1181 /* Put it at the end of the reglogin list */
1182 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_reglogin_list
);
1183 phba
->fc_reglogin_cnt
++;
1186 spin_lock_irq(phba
->host
->host_lock
);
1187 nlp
->nlp_flag
|= list
;
1188 spin_unlock_irq(phba
->host
->host_lock
);
1189 /* Put it at the end of the prli list */
1190 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_prli_list
);
1191 phba
->fc_prli_cnt
++;
1193 case NLP_UNMAPPED_LIST
:
1194 rport_add
= unmapped
;
1195 /* ensure all vestiges of "mapped" significance are gone */
1196 nlp
->nlp_type
&= ~(NLP_FCP_TARGET
| NLP_FCP_INITIATOR
);
1197 spin_lock_irq(phba
->host
->host_lock
);
1198 nlp
->nlp_flag
|= list
;
1199 spin_unlock_irq(phba
->host
->host_lock
);
1200 /* Put it at the end of the unmap list */
1201 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_nlpunmap_list
);
1202 phba
->fc_unmap_cnt
++;
1203 phba
->nport_event_cnt
++;
1204 /* stop nodev tmo if running */
1205 if (nlp
->nlp_flag
& NLP_NODEV_TMO
) {
1206 spin_lock_irq(phba
->host
->host_lock
);
1207 nlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
1208 spin_unlock_irq(phba
->host
->host_lock
);
1209 del_timer_sync(&nlp
->nlp_tmofunc
);
1210 if (!list_empty(&nlp
->nodev_timeout_evt
.evt_listp
))
1211 list_del_init(&nlp
->nodev_timeout_evt
.
1215 nlp
->nlp_type
|= NLP_FC_NODE
;
1217 case NLP_MAPPED_LIST
:
1219 spin_lock_irq(phba
->host
->host_lock
);
1220 nlp
->nlp_flag
|= list
;
1221 spin_unlock_irq(phba
->host
->host_lock
);
1222 /* Put it at the end of the map list */
1223 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_nlpmap_list
);
1225 phba
->nport_event_cnt
++;
1226 /* stop nodev tmo if running */
1227 if (nlp
->nlp_flag
& NLP_NODEV_TMO
) {
1228 nlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
1229 del_timer_sync(&nlp
->nlp_tmofunc
);
1230 if (!list_empty(&nlp
->nodev_timeout_evt
.evt_listp
))
1231 list_del_init(&nlp
->nodev_timeout_evt
.
1237 spin_lock_irq(phba
->host
->host_lock
);
1238 nlp
->nlp_flag
|= list
;
1239 spin_unlock_irq(phba
->host
->host_lock
);
1240 /* Put it at the end of the npr list */
1241 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_npr_list
);
1245 * Sanity check for Fabric entity.
1246 * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1248 if (nlp
->nlp_type
& NLP_FABRIC
) {
1249 mod_timer(&nlp
->nlp_tmofunc
, jiffies
+ HZ
);
1252 mod_timer(&nlp
->nlp_tmofunc
,
1253 jiffies
+ HZ
* phba
->cfg_nodev_tmo
);
1255 spin_lock_irq(phba
->host
->host_lock
);
1256 nlp
->nlp_flag
|= NLP_NODEV_TMO
;
1257 nlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
1258 spin_unlock_irq(phba
->host
->host_lock
);
1265 * We make all the calls into the transport after we have
1266 * moved the node between lists. This so that we don't
1267 * release the lock while in-between lists.
1270 /* Don't upcall midlayer if we're unloading */
1271 if (!(phba
->fc_flag
& FC_UNLOADING
)) {
1273 * We revalidate the rport pointer as the "add" function
1274 * may have removed the remote port.
1276 if ((rport_del
!= none
) && nlp
->rport
)
1277 lpfc_unregister_remote_port(phba
, nlp
);
1279 if (rport_add
!= none
) {
1281 * Tell the fc transport about the port, if we haven't
1282 * already. If we have, and it's a scsi entity, be
1283 * sure to unblock any attached scsi devices
1286 lpfc_register_remote_port(phba
, nlp
);
1289 * if we added to Mapped list, but the remote port
1290 * registration failed or assigned a target id outside
1291 * our presentable range - move the node to the
1294 if ((rport_add
== mapped
) &&
1296 (nlp
->rport
->scsi_target_id
== -1) ||
1297 (nlp
->rport
->scsi_target_id
>= MAX_FCP_TARGET
))) {
1298 nlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
1299 spin_lock_irq(phba
->host
->host_lock
);
1300 nlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
1301 spin_unlock_irq(phba
->host
->host_lock
);
1302 lpfc_nlp_list(phba
, nlp
, NLP_UNMAPPED_LIST
);
1310 * Start / ReStart rescue timer for Discovery / RSCN handling
1313 lpfc_set_disctmo(struct lpfc_hba
* phba
)
1317 tmo
= ((phba
->fc_ratov
* 2) + 1);
1319 mod_timer(&phba
->fc_disctmo
, jiffies
+ HZ
* tmo
);
1320 spin_lock_irq(phba
->host
->host_lock
);
1321 phba
->fc_flag
|= FC_DISC_TMO
;
1322 spin_unlock_irq(phba
->host
->host_lock
);
1324 /* Start Discovery Timer state <hba_state> */
1325 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1326 "%d:0247 Start Discovery Timer state x%x "
1327 "Data: x%x x%lx x%x x%x\n",
1329 phba
->hba_state
, tmo
, (unsigned long)&phba
->fc_disctmo
,
1330 phba
->fc_plogi_cnt
, phba
->fc_adisc_cnt
);
1336 * Cancel rescue timer for Discovery / RSCN handling
1339 lpfc_can_disctmo(struct lpfc_hba
* phba
)
1341 /* Turn off discovery timer if its running */
1342 if (phba
->fc_flag
& FC_DISC_TMO
) {
1343 spin_lock_irq(phba
->host
->host_lock
);
1344 phba
->fc_flag
&= ~FC_DISC_TMO
;
1345 spin_unlock_irq(phba
->host
->host_lock
);
1346 del_timer_sync(&phba
->fc_disctmo
);
1347 phba
->work_hba_events
&= ~WORKER_DISC_TMO
;
1350 /* Cancel Discovery Timer state <hba_state> */
1351 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1352 "%d:0248 Cancel Discovery Timer state x%x "
1353 "Data: x%x x%x x%x\n",
1354 phba
->brd_no
, phba
->hba_state
, phba
->fc_flag
,
1355 phba
->fc_plogi_cnt
, phba
->fc_adisc_cnt
);
1361 * Check specified ring for outstanding IOCB on the SLI queue
1362 * Return true if iocb matches the specified nport
1365 lpfc_check_sli_ndlp(struct lpfc_hba
* phba
,
1366 struct lpfc_sli_ring
* pring
,
1367 struct lpfc_iocbq
* iocb
, struct lpfc_nodelist
* ndlp
)
1369 struct lpfc_sli
*psli
;
1374 if (pring
->ringno
== LPFC_ELS_RING
) {
1375 switch (icmd
->ulpCommand
) {
1376 case CMD_GEN_REQUEST64_CR
:
1377 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
)
1379 case CMD_ELS_REQUEST64_CR
:
1380 case CMD_XMIT_ELS_RSP64_CX
:
1381 if (iocb
->context1
== (uint8_t *) ndlp
)
1384 } else if (pring
->ringno
== psli
->ip_ring
) {
1386 } else if (pring
->ringno
== psli
->fcp_ring
) {
1387 /* Skip match check if waiting to relogin to FCP target */
1388 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
1389 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
1392 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
1395 } else if (pring
->ringno
== psli
->next_ring
) {
1402 * Free resources / clean up outstanding I/Os
1403 * associated with nlp_rpi in the LPFC_NODELIST entry.
1406 lpfc_no_rpi(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1408 struct lpfc_sli
*psli
;
1409 struct lpfc_sli_ring
*pring
;
1410 struct lpfc_iocbq
*iocb
, *next_iocb
;
1415 * Everything that matches on txcmplq will be returned
1416 * by firmware with a no rpi error.
1419 rpi
= ndlp
->nlp_rpi
;
1421 /* Now process each ring */
1422 for (i
= 0; i
< psli
->num_rings
; i
++) {
1423 pring
= &psli
->ring
[i
];
1425 spin_lock_irq(phba
->host
->host_lock
);
1426 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
,
1429 * Check to see if iocb matches the nport we are
1432 if ((lpfc_check_sli_ndlp
1433 (phba
, pring
, iocb
, ndlp
))) {
1434 /* It matches, so deque and call compl
1436 list_del(&iocb
->list
);
1438 if (iocb
->iocb_cmpl
) {
1441 IOSTAT_LOCAL_REJECT
;
1442 icmd
->un
.ulpWord
[4] =
1444 spin_unlock_irq(phba
->host
->
1446 (iocb
->iocb_cmpl
) (phba
,
1448 spin_lock_irq(phba
->host
->
1451 lpfc_sli_release_iocbq(phba
,
1455 spin_unlock_irq(phba
->host
->host_lock
);
1463 * Free rpi associated with LPFC_NODELIST entry.
1464 * This routine is called from lpfc_freenode(), when we are removing
1465 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1466 * LOGO that completes successfully, and we are waiting to PLOGI back
1467 * to the remote NPort. In addition, it is called after we receive
1468 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1469 * we are waiting to PLOGI back to the remote NPort.
1472 lpfc_unreg_rpi(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1477 if (ndlp
->nlp_rpi
) {
1478 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
1479 lpfc_unreg_login(phba
, ndlp
->nlp_rpi
, mbox
);
1480 mbox
->mbox_cmpl
=lpfc_sli_def_mbox_cmpl
;
1481 rc
= lpfc_sli_issue_mbox
1482 (phba
, mbox
, (MBX_NOWAIT
| MBX_STOP_IOCB
));
1483 if (rc
== MBX_NOT_FINISHED
)
1484 mempool_free( mbox
, phba
->mbox_mem_pool
);
1486 lpfc_no_rpi(phba
, ndlp
);
1494 * Free resources associated with LPFC_NODELIST entry
1495 * so it can be freed.
1498 lpfc_freenode(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1501 LPFC_MBOXQ_t
*nextmb
;
1502 struct lpfc_dmabuf
*mp
;
1504 /* Cleanup node for NPort <nlp_DID> */
1505 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1506 "%d:0900 Cleanup node for NPort x%x "
1507 "Data: x%x x%x x%x\n",
1508 phba
->brd_no
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
1509 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
1511 lpfc_nlp_list(phba
, ndlp
, NLP_JUST_DQ
);
1514 * if unloading the driver - just leave the remote port in place.
1515 * The driver unload will force the attached devices to detach
1516 * and flush cache's w/o generating flush errors.
1518 if ((ndlp
->rport
) && !(phba
->fc_flag
& FC_UNLOADING
)) {
1519 lpfc_unregister_remote_port(phba
, ndlp
);
1520 ndlp
->nlp_sid
= NLP_NO_SID
;
1523 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1524 if ((mb
= phba
->sli
.mbox_active
)) {
1525 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
1526 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
1527 mb
->context2
= NULL
;
1528 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1531 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
1532 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
1533 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
1534 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
1536 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1539 list_del(&mb
->list
);
1540 mempool_free(mb
, phba
->mbox_mem_pool
);
1544 lpfc_els_abort(phba
,ndlp
,0);
1545 spin_lock_irq(phba
->host
->host_lock
);
1546 ndlp
->nlp_flag
&= ~(NLP_NODEV_TMO
|NLP_DELAY_TMO
);
1547 spin_unlock_irq(phba
->host
->host_lock
);
1548 del_timer_sync(&ndlp
->nlp_tmofunc
);
1550 del_timer_sync(&ndlp
->nlp_delayfunc
);
1552 if (!list_empty(&ndlp
->nodev_timeout_evt
.evt_listp
))
1553 list_del_init(&ndlp
->nodev_timeout_evt
.evt_listp
);
1554 if (!list_empty(&ndlp
->els_retry_evt
.evt_listp
))
1555 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
1557 lpfc_unreg_rpi(phba
, ndlp
);
1563 * Check to see if we can free the nlp back to the freelist.
1564 * If we are in the middle of using the nlp in the discovery state
1565 * machine, defer the free till we reach the end of the state machine.
1568 lpfc_nlp_remove(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1570 if (ndlp
->nlp_flag
& NLP_NODEV_TMO
) {
1571 spin_lock_irq(phba
->host
->host_lock
);
1572 ndlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
1573 spin_unlock_irq(phba
->host
->host_lock
);
1574 del_timer_sync(&ndlp
->nlp_tmofunc
);
1575 if (!list_empty(&ndlp
->nodev_timeout_evt
.evt_listp
))
1576 list_del_init(&ndlp
->nodev_timeout_evt
.evt_listp
);
1581 if (ndlp
->nlp_flag
& NLP_DELAY_TMO
) {
1582 spin_lock_irq(phba
->host
->host_lock
);
1583 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
1584 spin_unlock_irq(phba
->host
->host_lock
);
1585 del_timer_sync(&ndlp
->nlp_delayfunc
);
1586 if (!list_empty(&ndlp
->els_retry_evt
.evt_listp
))
1587 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
1590 if (ndlp
->nlp_disc_refcnt
) {
1591 spin_lock_irq(phba
->host
->host_lock
);
1592 ndlp
->nlp_flag
|= NLP_DELAY_REMOVE
;
1593 spin_unlock_irq(phba
->host
->host_lock
);
1596 lpfc_freenode(phba
, ndlp
);
1597 mempool_free( ndlp
, phba
->nlp_mem_pool
);
1603 lpfc_matchdid(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
, uint32_t did
)
1609 if (did
== Bcast_DID
)
1612 if (ndlp
->nlp_DID
== 0) {
1616 /* First check for Direct match */
1617 if (ndlp
->nlp_DID
== did
)
1620 /* Next check for area/domain identically equals 0 match */
1621 mydid
.un
.word
= phba
->fc_myDID
;
1622 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
1626 matchdid
.un
.word
= did
;
1627 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
1628 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
1629 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
1630 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
1631 if ((ndlpdid
.un
.b
.domain
== 0) &&
1632 (ndlpdid
.un
.b
.area
== 0)) {
1633 if (ndlpdid
.un
.b
.id
)
1639 matchdid
.un
.word
= ndlp
->nlp_DID
;
1640 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
1641 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
1642 if ((matchdid
.un
.b
.domain
== 0) &&
1643 (matchdid
.un
.b
.area
== 0)) {
1644 if (matchdid
.un
.b
.id
)
1652 /* Search for a nodelist entry on a specific list */
1653 struct lpfc_nodelist
*
1654 lpfc_findnode_did(struct lpfc_hba
* phba
, uint32_t order
, uint32_t did
)
1656 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
1659 if (order
& NLP_SEARCH_UNMAPPED
) {
1660 list_for_each_entry_safe(ndlp
, next_ndlp
,
1661 &phba
->fc_nlpunmap_list
, nlp_listp
) {
1662 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1663 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1664 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1665 ((uint32_t) ndlp
->nlp_type
<< 8) |
1666 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1667 /* FIND node DID unmapped */
1668 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1669 "%d:0929 FIND node DID unmapped"
1670 " Data: x%p x%x x%x x%x\n",
1672 ndlp
, ndlp
->nlp_DID
,
1673 ndlp
->nlp_flag
, data1
);
1679 if (order
& NLP_SEARCH_MAPPED
) {
1680 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_nlpmap_list
,
1682 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1684 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1685 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1686 ((uint32_t) ndlp
->nlp_type
<< 8) |
1687 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1688 /* FIND node DID mapped */
1689 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1690 "%d:0930 FIND node DID mapped "
1691 "Data: x%p x%x x%x x%x\n",
1693 ndlp
, ndlp
->nlp_DID
,
1694 ndlp
->nlp_flag
, data1
);
1700 if (order
& NLP_SEARCH_PLOGI
) {
1701 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_plogi_list
,
1703 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1705 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1706 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1707 ((uint32_t) ndlp
->nlp_type
<< 8) |
1708 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1709 /* LOG change to PLOGI */
1710 /* FIND node DID plogi */
1711 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1712 "%d:0908 FIND node DID plogi "
1713 "Data: x%p x%x x%x x%x\n",
1715 ndlp
, ndlp
->nlp_DID
,
1716 ndlp
->nlp_flag
, data1
);
1722 if (order
& NLP_SEARCH_ADISC
) {
1723 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_adisc_list
,
1725 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1727 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1728 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1729 ((uint32_t) ndlp
->nlp_type
<< 8) |
1730 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1731 /* LOG change to ADISC */
1732 /* FIND node DID adisc */
1733 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1734 "%d:0931 FIND node DID adisc "
1735 "Data: x%p x%x x%x x%x\n",
1737 ndlp
, ndlp
->nlp_DID
,
1738 ndlp
->nlp_flag
, data1
);
1744 if (order
& NLP_SEARCH_REGLOGIN
) {
1745 list_for_each_entry_safe(ndlp
, next_ndlp
,
1746 &phba
->fc_reglogin_list
, nlp_listp
) {
1747 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1749 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1750 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1751 ((uint32_t) ndlp
->nlp_type
<< 8) |
1752 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1753 /* LOG change to REGLOGIN */
1754 /* FIND node DID reglogin */
1755 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1756 "%d:0931 FIND node DID reglogin"
1757 " Data: x%p x%x x%x x%x\n",
1759 ndlp
, ndlp
->nlp_DID
,
1760 ndlp
->nlp_flag
, data1
);
1766 if (order
& NLP_SEARCH_PRLI
) {
1767 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_prli_list
,
1769 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1771 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1772 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1773 ((uint32_t) ndlp
->nlp_type
<< 8) |
1774 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1775 /* LOG change to PRLI */
1776 /* FIND node DID prli */
1777 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1778 "%d:0931 FIND node DID prli "
1779 "Data: x%p x%x x%x x%x\n",
1781 ndlp
, ndlp
->nlp_DID
,
1782 ndlp
->nlp_flag
, data1
);
1788 if (order
& NLP_SEARCH_NPR
) {
1789 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_npr_list
,
1791 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1793 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1794 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1795 ((uint32_t) ndlp
->nlp_type
<< 8) |
1796 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1797 /* LOG change to NPR */
1798 /* FIND node DID npr */
1799 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1800 "%d:0931 FIND node DID npr "
1801 "Data: x%p x%x x%x x%x\n",
1803 ndlp
, ndlp
->nlp_DID
,
1804 ndlp
->nlp_flag
, data1
);
1810 if (order
& NLP_SEARCH_UNUSED
) {
1811 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_adisc_list
,
1813 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1815 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1816 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1817 ((uint32_t) ndlp
->nlp_type
<< 8) |
1818 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1819 /* LOG change to UNUSED */
1820 /* FIND node DID unused */
1821 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1822 "%d:0931 FIND node DID unused "
1823 "Data: x%p x%x x%x x%x\n",
1825 ndlp
, ndlp
->nlp_DID
,
1826 ndlp
->nlp_flag
, data1
);
1832 /* FIND node did <did> NOT FOUND */
1833 lpfc_printf_log(phba
,
1836 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1837 phba
->brd_no
, did
, order
);
1839 /* no match found */
1843 struct lpfc_nodelist
*
1844 lpfc_setup_disc_node(struct lpfc_hba
* phba
, uint32_t did
)
1846 struct lpfc_nodelist
*ndlp
;
1849 if ((ndlp
= lpfc_findnode_did(phba
, NLP_SEARCH_ALL
, did
)) == 0) {
1850 if ((phba
->hba_state
== LPFC_HBA_READY
) &&
1851 ((lpfc_rscn_payload_check(phba
, did
) == 0)))
1853 ndlp
= (struct lpfc_nodelist
*)
1854 mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1857 lpfc_nlp_init(phba
, ndlp
, did
);
1858 ndlp
->nlp_state
= NLP_STE_NPR_NODE
;
1859 lpfc_nlp_list(phba
, ndlp
, NLP_NPR_LIST
);
1860 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1863 if ((phba
->hba_state
== LPFC_HBA_READY
) &&
1864 (phba
->fc_flag
& FC_RSCN_MODE
)) {
1865 if (lpfc_rscn_payload_check(phba
, did
)) {
1866 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1869 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1874 flg
= ndlp
->nlp_flag
& NLP_LIST_MASK
;
1875 if ((flg
== NLP_ADISC_LIST
) ||
1876 (flg
== NLP_PLOGI_LIST
)) {
1879 ndlp
->nlp_state
= NLP_STE_NPR_NODE
;
1880 lpfc_nlp_list(phba
, ndlp
, NLP_NPR_LIST
);
1881 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1886 /* Build a list of nodes to discover based on the loopmap */
1888 lpfc_disc_list_loopmap(struct lpfc_hba
* phba
)
1891 uint32_t alpa
, index
;
1893 if (phba
->hba_state
<= LPFC_LINK_DOWN
) {
1896 if (phba
->fc_topology
!= TOPOLOGY_LOOP
) {
1900 /* Check for loop map present or not */
1901 if (phba
->alpa_map
[0]) {
1902 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
1903 alpa
= phba
->alpa_map
[j
];
1905 if (((phba
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0)) {
1908 lpfc_setup_disc_node(phba
, alpa
);
1911 /* No alpamap, so try all alpa's */
1912 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
1913 /* If cfg_scan_down is set, start from highest
1914 * ALPA (0xef) to lowest (0x1).
1916 if (phba
->cfg_scan_down
)
1919 index
= FC_MAXLOOP
- j
- 1;
1920 alpa
= lpfcAlpaArray
[index
];
1921 if ((phba
->fc_myDID
& 0xff) == alpa
) {
1925 lpfc_setup_disc_node(phba
, alpa
);
1931 /* Start Link up / RSCN discovery on NPR list */
1933 lpfc_disc_start(struct lpfc_hba
* phba
)
1935 struct lpfc_sli
*psli
;
1937 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
1938 uint32_t did_changed
, num_sent
;
1939 uint32_t clear_la_pending
;
1944 if (phba
->hba_state
<= LPFC_LINK_DOWN
) {
1947 if (phba
->hba_state
== LPFC_CLEAR_LA
)
1948 clear_la_pending
= 1;
1950 clear_la_pending
= 0;
1952 if (phba
->hba_state
< LPFC_HBA_READY
) {
1953 phba
->hba_state
= LPFC_DISC_AUTH
;
1955 lpfc_set_disctmo(phba
);
1957 if (phba
->fc_prevDID
== phba
->fc_myDID
) {
1962 phba
->fc_prevDID
= phba
->fc_myDID
;
1963 phba
->num_disc_nodes
= 0;
1965 /* Start Discovery state <hba_state> */
1966 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1967 "%d:0202 Start Discovery hba state x%x "
1968 "Data: x%x x%x x%x\n",
1969 phba
->brd_no
, phba
->hba_state
, phba
->fc_flag
,
1970 phba
->fc_plogi_cnt
, phba
->fc_adisc_cnt
);
1972 /* If our did changed, we MUST do PLOGI */
1973 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_npr_list
,
1975 if (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
1977 spin_lock_irq(phba
->host
->host_lock
);
1978 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
1979 spin_unlock_irq(phba
->host
->host_lock
);
1984 /* First do ADISCs - if any */
1985 num_sent
= lpfc_els_disc_adisc(phba
);
1990 if ((phba
->hba_state
< LPFC_HBA_READY
) && (!clear_la_pending
)) {
1991 /* If we get here, there is nothing to ADISC */
1992 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
1993 phba
->hba_state
= LPFC_CLEAR_LA
;
1994 lpfc_clear_la(phba
, mbox
);
1995 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
1996 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
1997 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1998 if (rc
== MBX_NOT_FINISHED
) {
1999 mempool_free( mbox
, phba
->mbox_mem_pool
);
2000 lpfc_disc_flush_list(phba
);
2001 psli
->ring
[(psli
->ip_ring
)].flag
&=
2002 ~LPFC_STOP_IOCB_EVENT
;
2003 psli
->ring
[(psli
->fcp_ring
)].flag
&=
2004 ~LPFC_STOP_IOCB_EVENT
;
2005 psli
->ring
[(psli
->next_ring
)].flag
&=
2006 ~LPFC_STOP_IOCB_EVENT
;
2007 phba
->hba_state
= LPFC_HBA_READY
;
2011 /* Next do PLOGIs - if any */
2012 num_sent
= lpfc_els_disc_plogi(phba
);
2017 if (phba
->fc_flag
& FC_RSCN_MODE
) {
2018 /* Check to see if more RSCNs came in while we
2019 * were processing this one.
2021 if ((phba
->fc_rscn_id_cnt
== 0) &&
2022 (!(phba
->fc_flag
& FC_RSCN_DISCOVERY
))) {
2023 spin_lock_irq(phba
->host
->host_lock
);
2024 phba
->fc_flag
&= ~FC_RSCN_MODE
;
2025 spin_unlock_irq(phba
->host
->host_lock
);
2028 lpfc_els_handle_rscn(phba
);
2035 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2036 * ring the match the sppecified nodelist.
2039 lpfc_free_tx(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
2041 struct lpfc_sli
*psli
;
2043 struct lpfc_iocbq
*iocb
, *next_iocb
;
2044 struct lpfc_sli_ring
*pring
;
2045 struct lpfc_dmabuf
*mp
;
2048 pring
= &psli
->ring
[LPFC_ELS_RING
];
2050 /* Error matching iocb on txq or txcmplq
2051 * First check the txq.
2053 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
2054 if (iocb
->context1
!= ndlp
) {
2058 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
2059 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
2061 list_del(&iocb
->list
);
2063 lpfc_els_free_iocb(phba
, iocb
);
2067 /* Next check the txcmplq */
2068 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
2069 if (iocb
->context1
!= ndlp
) {
2073 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
2074 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
2076 iocb
->iocb_cmpl
= NULL
;
2077 /* context2 = cmd, context2->next = rsp, context3 =
2079 if (iocb
->context2
) {
2080 /* Free the response IOCB before handling the
2083 mp
= (struct lpfc_dmabuf
*) (iocb
->context2
);
2084 mp
= list_get_first(&mp
->list
,
2088 /* Delay before releasing rsp buffer to
2089 * give UNREG mbox a chance to take
2093 &phba
->freebufList
);
2095 lpfc_mbuf_free(phba
,
2096 ((struct lpfc_dmabuf
*)
2097 iocb
->context2
)->virt
,
2098 ((struct lpfc_dmabuf
*)
2099 iocb
->context2
)->phys
);
2100 kfree(iocb
->context2
);
2103 if (iocb
->context3
) {
2104 lpfc_mbuf_free(phba
,
2105 ((struct lpfc_dmabuf
*)
2106 iocb
->context3
)->virt
,
2107 ((struct lpfc_dmabuf
*)
2108 iocb
->context3
)->phys
);
2109 kfree(iocb
->context3
);
2118 lpfc_disc_flush_list(struct lpfc_hba
* phba
)
2120 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2122 if (phba
->fc_plogi_cnt
) {
2123 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_plogi_list
,
2125 lpfc_free_tx(phba
, ndlp
);
2126 lpfc_nlp_remove(phba
, ndlp
);
2129 if (phba
->fc_adisc_cnt
) {
2130 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_adisc_list
,
2132 lpfc_free_tx(phba
, ndlp
);
2133 lpfc_nlp_remove(phba
, ndlp
);
2139 /*****************************************************************************/
2141 * NAME: lpfc_disc_timeout
2143 * FUNCTION: Fibre Channel driver discovery timeout routine.
2145 * EXECUTION ENVIRONMENT: interrupt only
2153 /*****************************************************************************/
2155 lpfc_disc_timeout(unsigned long ptr
)
2157 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2158 unsigned long flags
= 0;
2160 if (unlikely(!phba
))
2163 spin_lock_irqsave(phba
->host
->host_lock
, flags
);
2164 if (!(phba
->work_hba_events
& WORKER_DISC_TMO
)) {
2165 phba
->work_hba_events
|= WORKER_DISC_TMO
;
2166 if (phba
->work_wait
)
2167 wake_up(phba
->work_wait
);
2169 spin_unlock_irqrestore(phba
->host
->host_lock
, flags
);
2174 lpfc_disc_timeout_handler(struct lpfc_hba
*phba
)
2176 struct lpfc_sli
*psli
;
2177 struct lpfc_nodelist
*ndlp
;
2178 LPFC_MBOXQ_t
*clearlambox
, *initlinkmbox
;
2179 int rc
, clrlaerr
= 0;
2181 if (unlikely(!phba
))
2184 if (!(phba
->fc_flag
& FC_DISC_TMO
))
2189 spin_lock_irq(phba
->host
->host_lock
);
2190 phba
->fc_flag
&= ~FC_DISC_TMO
;
2191 spin_unlock_irq(phba
->host
->host_lock
);
2193 switch (phba
->hba_state
) {
2195 case LPFC_LOCAL_CFG_LINK
:
2196 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2198 lpfc_printf_log(phba
,
2201 "%d:0221 FAN timeout\n",
2204 /* Forget about FAN, Start discovery by sending a FLOGI
2205 * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2208 phba
->hba_state
= LPFC_FLOGI
;
2209 lpfc_set_disctmo(phba
);
2210 lpfc_initial_flogi(phba
);
2214 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2215 /* Initial FLOGI timeout */
2216 lpfc_printf_log(phba
,
2219 "%d:0222 Initial FLOGI timeout\n",
2222 /* Assume no Fabric and go on with discovery.
2223 * Check for outstanding ELS FLOGI to abort.
2226 /* FLOGI failed, so just use loop map to make discovery list */
2227 lpfc_disc_list_loopmap(phba
);
2229 /* Start discovery */
2230 lpfc_disc_start(phba
);
2233 case LPFC_FABRIC_CFG_LINK
:
2234 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2236 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2237 "%d:0223 Timeout while waiting for NameServer "
2238 "login\n", phba
->brd_no
);
2240 /* Next look for NameServer ndlp */
2241 ndlp
= lpfc_findnode_did(phba
, NLP_SEARCH_ALL
, NameServer_DID
);
2243 lpfc_nlp_remove(phba
, ndlp
);
2244 /* Start discovery */
2245 lpfc_disc_start(phba
);
2249 /* Check for wait for NameServer Rsp timeout */
2250 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2251 "%d:0224 NameServer Query timeout "
2254 phba
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2256 ndlp
= lpfc_findnode_did(phba
, NLP_SEARCH_UNMAPPED
,
2259 if (phba
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
2260 /* Try it one more time */
2261 rc
= lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_GID_FT
);
2265 phba
->fc_ns_retry
= 0;
2268 /* Nothing to authenticate, so CLEAR_LA right now */
2269 clearlambox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2272 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2273 "%d:0226 Device Discovery "
2274 "completion error\n",
2276 phba
->hba_state
= LPFC_HBA_ERROR
;
2280 phba
->hba_state
= LPFC_CLEAR_LA
;
2281 lpfc_clear_la(phba
, clearlambox
);
2282 clearlambox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
2283 rc
= lpfc_sli_issue_mbox(phba
, clearlambox
,
2284 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2285 if (rc
== MBX_NOT_FINISHED
) {
2286 mempool_free(clearlambox
, phba
->mbox_mem_pool
);
2291 /* Setup and issue mailbox INITIALIZE LINK command */
2292 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2293 if (!initlinkmbox
) {
2294 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2295 "%d:0226 Device Discovery "
2296 "completion error\n",
2298 phba
->hba_state
= LPFC_HBA_ERROR
;
2302 lpfc_linkdown(phba
);
2303 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
2304 phba
->cfg_link_speed
);
2305 initlinkmbox
->mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
2306 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
,
2307 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2308 if (rc
== MBX_NOT_FINISHED
)
2309 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
2313 case LPFC_DISC_AUTH
:
2314 /* Node Authentication timeout */
2315 lpfc_printf_log(phba
,
2318 "%d:0227 Node Authentication timeout\n",
2320 lpfc_disc_flush_list(phba
);
2321 clearlambox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2324 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2325 "%d:0226 Device Discovery "
2326 "completion error\n",
2328 phba
->hba_state
= LPFC_HBA_ERROR
;
2331 phba
->hba_state
= LPFC_CLEAR_LA
;
2332 lpfc_clear_la(phba
, clearlambox
);
2333 clearlambox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
2334 rc
= lpfc_sli_issue_mbox(phba
, clearlambox
,
2335 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2336 if (rc
== MBX_NOT_FINISHED
) {
2337 mempool_free(clearlambox
, phba
->mbox_mem_pool
);
2343 /* CLEAR LA timeout */
2344 lpfc_printf_log(phba
,
2347 "%d:0228 CLEAR LA timeout\n",
2352 case LPFC_HBA_READY
:
2353 if (phba
->fc_flag
& FC_RSCN_MODE
) {
2354 lpfc_printf_log(phba
,
2357 "%d:0231 RSCN timeout Data: x%x x%x\n",
2359 phba
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2361 /* Cleanup any outstanding ELS commands */
2362 lpfc_els_flush_cmd(phba
);
2364 lpfc_els_flush_rscn(phba
);
2365 lpfc_disc_flush_list(phba
);
2371 lpfc_disc_flush_list(phba
);
2372 psli
->ring
[(psli
->ip_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2373 psli
->ring
[(psli
->fcp_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2374 psli
->ring
[(psli
->next_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2375 phba
->hba_state
= LPFC_HBA_READY
;
2382 lpfc_nodev_timeout(unsigned long ptr
)
2384 struct lpfc_hba
*phba
;
2385 struct lpfc_nodelist
*ndlp
;
2386 unsigned long iflag
;
2387 struct lpfc_work_evt
*evtp
;
2389 ndlp
= (struct lpfc_nodelist
*)ptr
;
2390 phba
= ndlp
->nlp_phba
;
2391 evtp
= &ndlp
->nodev_timeout_evt
;
2392 spin_lock_irqsave(phba
->host
->host_lock
, iflag
);
2394 if (!list_empty(&evtp
->evt_listp
)) {
2395 spin_unlock_irqrestore(phba
->host
->host_lock
, iflag
);
2398 evtp
->evt_arg1
= ndlp
;
2399 evtp
->evt
= LPFC_EVT_NODEV_TMO
;
2400 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2401 if (phba
->work_wait
)
2402 wake_up(phba
->work_wait
);
2404 spin_unlock_irqrestore(phba
->host
->host_lock
, iflag
);
2410 * This routine handles processing a NameServer REG_LOGIN mailbox
2411 * command upon completion. It is setup in the LPFC_MBOXQ
2412 * as the completion routine when the command is
2413 * handed off to the SLI layer.
2416 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
2418 struct lpfc_sli
*psli
;
2420 struct lpfc_dmabuf
*mp
;
2421 struct lpfc_nodelist
*ndlp
;
2426 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
2427 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2429 pmb
->context1
= NULL
;
2431 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
2432 ndlp
->nlp_type
|= NLP_FABRIC
;
2433 ndlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
2434 lpfc_nlp_list(phba
, ndlp
, NLP_UNMAPPED_LIST
);
2436 /* Start issuing Fabric-Device Management Interface (FDMI)
2437 * command to 0xfffffa (FDMI well known port)
2439 if (phba
->cfg_fdmi_on
== 1) {
2440 lpfc_fdmi_cmd(phba
, ndlp
, SLI_MGMT_DHBA
);
2443 * Delay issuing FDMI command if fdmi-on=2
2444 * (supporting RPA/hostnmae)
2446 mod_timer(&phba
->fc_fdmitmo
, jiffies
+ HZ
* 60);
2449 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2451 mempool_free( pmb
, phba
->mbox_mem_pool
);
2457 * This routine looks up the ndlp lists
2458 * for the given RPI. If rpi found
2459 * it return the node list pointer
2462 struct lpfc_nodelist
*
2463 lpfc_findnode_rpi(struct lpfc_hba
* phba
, uint16_t rpi
)
2465 struct lpfc_nodelist
*ndlp
;
2466 struct list_head
* lists
[]={&phba
->fc_nlpunmap_list
,
2467 &phba
->fc_nlpmap_list
,
2468 &phba
->fc_plogi_list
,
2469 &phba
->fc_adisc_list
,
2470 &phba
->fc_reglogin_list
};
2473 for (i
= 0; i
< ARRAY_SIZE(lists
); i
++ )
2474 list_for_each_entry(ndlp
, lists
[i
], nlp_listp
)
2475 if (ndlp
->nlp_rpi
== rpi
)
2482 lpfc_nlp_init(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
,
2485 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
2486 INIT_LIST_HEAD(&ndlp
->nodev_timeout_evt
.evt_listp
);
2487 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
2488 init_timer(&ndlp
->nlp_tmofunc
);
2489 ndlp
->nlp_tmofunc
.function
= lpfc_nodev_timeout
;
2490 ndlp
->nlp_tmofunc
.data
= (unsigned long)ndlp
;
2491 init_timer(&ndlp
->nlp_delayfunc
);
2492 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
2493 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
2494 ndlp
->nlp_DID
= did
;
2495 ndlp
->nlp_phba
= phba
;
2496 ndlp
->nlp_sid
= NLP_NO_SID
;