1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Enterprise Fibre Channel Host Bus Adapters. *
4 * Refer to the README file included with this package for *
5 * driver version and adapter support. *
6 * Copyright (C) 2004 Emulex Corporation. *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of the GNU General Public License *
11 * as published by the Free Software Foundation; either version 2 *
12 * of the License, or (at your option) any later version. *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details, a copy of which *
18 * can be found in the file COPYING included with this package. *
19 *******************************************************************/
22 * $Id: lpfc_hbadisc.c 1.266 2005/04/13 11:59:06EDT sf_support Exp $
25 #include <linux/blkdev.h>
26 #include <linux/pci.h>
27 #include <linux/kthread.h>
28 #include <linux/interrupt.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
35 #include "lpfc_disc.h"
37 #include "lpfc_scsi.h"
39 #include "lpfc_logmsg.h"
40 #include "lpfc_crtn.h"
42 /* AlpaArray for assignment of scsid for scan-down and bind_method */
43 static uint8_t lpfcAlpaArray
[] = {
44 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
45 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
46 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
47 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
48 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
49 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
50 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
51 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
52 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
53 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
54 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
55 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
56 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
59 static void lpfc_disc_timeout_handler(struct lpfc_hba
*);
62 lpfc_process_nodev_timeout(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
)
66 spin_lock_irq(phba
->host
->host_lock
);
67 if (!(ndlp
->nlp_flag
& NLP_NODEV_TMO
)) {
68 spin_unlock_irq(phba
->host
->host_lock
);
72 ndlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
74 if (ndlp
->nlp_sid
!= NLP_NO_SID
) {
76 /* flush the target */
77 lpfc_sli_abort_iocb(phba
, &phba
->sli
.ring
[phba
->sli
.fcp_ring
],
78 ndlp
->nlp_sid
, 0, 0, LPFC_CTX_TGT
);
80 spin_unlock_irq(phba
->host
->host_lock
);
83 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
84 "%d:0203 Nodev timeout on NPort x%x "
85 "Data: x%x x%x x%x\n",
86 phba
->brd_no
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
87 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
89 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
90 "%d:0204 Nodev timeout on NPort x%x "
91 "Data: x%x x%x x%x\n",
92 phba
->brd_no
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
93 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
96 lpfc_disc_state_machine(phba
, ndlp
, NULL
, NLP_EVT_DEVICE_RM
);
101 lpfc_work_list_done(struct lpfc_hba
* phba
)
103 struct lpfc_work_evt
*evtp
= NULL
;
104 struct lpfc_nodelist
*ndlp
;
107 spin_lock_irq(phba
->host
->host_lock
);
108 while(!list_empty(&phba
->work_list
)) {
109 list_remove_head((&phba
->work_list
), evtp
, typeof(*evtp
),
111 spin_unlock_irq(phba
->host
->host_lock
);
114 case LPFC_EVT_NODEV_TMO
:
115 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
116 lpfc_process_nodev_timeout(phba
, ndlp
);
119 case LPFC_EVT_ELS_RETRY
:
120 ndlp
= (struct lpfc_nodelist
*)(evtp
->evt_arg1
);
121 lpfc_els_retry_delay_handler(ndlp
);
124 case LPFC_EVT_ONLINE
:
125 *(int *)(evtp
->evt_arg1
) = lpfc_online(phba
);
126 complete((struct completion
*)(evtp
->evt_arg2
));
128 case LPFC_EVT_OFFLINE
:
129 *(int *)(evtp
->evt_arg1
) = lpfc_offline(phba
);
130 complete((struct completion
*)(evtp
->evt_arg2
));
135 spin_lock_irq(phba
->host
->host_lock
);
137 spin_unlock_irq(phba
->host
->host_lock
);
142 lpfc_work_done(struct lpfc_hba
* phba
)
144 struct lpfc_sli_ring
*pring
;
148 uint32_t work_hba_events
;
150 spin_lock_irq(phba
->host
->host_lock
);
151 ha_copy
= phba
->work_ha
;
153 work_hba_events
=phba
->work_hba_events
;
154 spin_unlock_irq(phba
->host
->host_lock
);
156 if(ha_copy
& HA_ERATT
)
157 lpfc_handle_eratt(phba
);
159 if(ha_copy
& HA_MBATT
)
160 lpfc_sli_handle_mb_event(phba
);
162 if(ha_copy
& HA_LATT
)
163 lpfc_handle_latt(phba
);
165 if (work_hba_events
& WORKER_DISC_TMO
)
166 lpfc_disc_timeout_handler(phba
);
168 if (work_hba_events
& WORKER_ELS_TMO
)
169 lpfc_els_timeout_handler(phba
);
171 if (work_hba_events
& WORKER_MBOX_TMO
)
172 lpfc_mbox_timeout_handler(phba
);
174 if (work_hba_events
& WORKER_FDMI_TMO
)
175 lpfc_fdmi_tmo_handler(phba
);
177 spin_lock_irq(phba
->host
->host_lock
);
178 phba
->work_hba_events
&= ~work_hba_events
;
179 spin_unlock_irq(phba
->host
->host_lock
);
181 for (i
= 0; i
< phba
->sli
.num_rings
; i
++, ha_copy
>>= 4) {
182 pring
= &phba
->sli
.ring
[i
];
183 if ((ha_copy
& HA_RXATT
)
184 || (pring
->flag
& LPFC_DEFERRED_RING_EVENT
)) {
185 if (pring
->flag
& LPFC_STOP_IOCB_MASK
) {
186 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
188 lpfc_sli_handle_slow_ring_event(phba
, pring
,
191 pring
->flag
&= ~LPFC_DEFERRED_RING_EVENT
;
194 * Turn on Ring interrupts
196 spin_lock_irq(phba
->host
->host_lock
);
197 control
= readl(phba
->HCregaddr
);
198 control
|= (HC_R0INT_ENA
<< i
);
199 writel(control
, phba
->HCregaddr
);
200 readl(phba
->HCregaddr
); /* flush */
201 spin_unlock_irq(phba
->host
->host_lock
);
205 lpfc_work_list_done (phba
);
210 check_work_wait_done(struct lpfc_hba
*phba
) {
212 spin_lock_irq(phba
->host
->host_lock
);
214 phba
->work_hba_events
||
215 (!list_empty(&phba
->work_list
)) ||
216 kthread_should_stop()) {
217 spin_unlock_irq(phba
->host
->host_lock
);
220 spin_unlock_irq(phba
->host
->host_lock
);
226 lpfc_do_work(void *p
)
228 struct lpfc_hba
*phba
= p
;
230 DECLARE_WAIT_QUEUE_HEAD(work_waitq
);
232 set_user_nice(current
, -20);
233 phba
->work_wait
= &work_waitq
;
237 rc
= wait_event_interruptible(work_waitq
,
238 check_work_wait_done(phba
));
241 if (kthread_should_stop())
244 lpfc_work_done(phba
);
247 phba
->work_wait
= NULL
;
252 * This is only called to handle FC worker events. Since this a rare
253 * occurance, we allocate a struct lpfc_work_evt structure here instead of
254 * embedding it in the IOCB.
257 lpfc_workq_post_event(struct lpfc_hba
* phba
, void *arg1
, void *arg2
,
260 struct lpfc_work_evt
*evtp
;
263 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
264 * be queued to worker thread for processing
266 evtp
= kmalloc(sizeof(struct lpfc_work_evt
), GFP_KERNEL
);
270 evtp
->evt_arg1
= arg1
;
271 evtp
->evt_arg2
= arg2
;
274 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
275 spin_lock_irq(phba
->host
->host_lock
);
277 wake_up(phba
->work_wait
);
278 spin_unlock_irq(phba
->host
->host_lock
);
284 lpfc_linkdown(struct lpfc_hba
* phba
)
286 struct lpfc_sli
*psli
;
287 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
288 struct list_head
*listp
;
289 struct list_head
*node_list
[7];
295 spin_lock_irq(phba
->host
->host_lock
);
296 phba
->hba_state
= LPFC_LINK_DOWN
;
297 spin_unlock_irq(phba
->host
->host_lock
);
299 /* Clean up any firmware default rpi's */
300 if ((mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
301 lpfc_unreg_did(phba
, 0xffffffff, mb
);
302 mb
->mbox_cmpl
=lpfc_sli_def_mbox_cmpl
;
303 if (lpfc_sli_issue_mbox(phba
, mb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
304 == MBX_NOT_FINISHED
) {
305 mempool_free( mb
, phba
->mbox_mem_pool
);
309 /* Cleanup any outstanding RSCN activity */
310 lpfc_els_flush_rscn(phba
);
312 /* Cleanup any outstanding ELS commands */
313 lpfc_els_flush_cmd(phba
);
315 /* Issue a LINK DOWN event to all nodes */
316 node_list
[0] = &phba
->fc_npr_list
; /* MUST do this list first */
317 node_list
[1] = &phba
->fc_nlpmap_list
;
318 node_list
[2] = &phba
->fc_nlpunmap_list
;
319 node_list
[3] = &phba
->fc_prli_list
;
320 node_list
[4] = &phba
->fc_reglogin_list
;
321 node_list
[5] = &phba
->fc_adisc_list
;
322 node_list
[6] = &phba
->fc_plogi_list
;
323 for (i
= 0; i
< 7; i
++) {
324 listp
= node_list
[i
];
325 if (list_empty(listp
))
328 list_for_each_entry_safe(ndlp
, next_ndlp
, listp
, nlp_listp
) {
329 /* Fabric nodes are not handled thru state machine for
331 if (ndlp
->nlp_type
& NLP_FABRIC
) {
332 /* Remove ALL Fabric nodes except Fabric_DID */
333 if (ndlp
->nlp_DID
!= Fabric_DID
) {
334 /* Take it off current list and free */
335 lpfc_nlp_list(phba
, ndlp
,
341 rc
= lpfc_disc_state_machine(phba
, ndlp
, NULL
,
342 NLP_EVT_DEVICE_RECOVERY
);
344 /* Check config parameter use-adisc or FCP-2 */
345 if ((rc
!= NLP_STE_FREED_NODE
) &&
346 (phba
->cfg_use_adisc
== 0) &&
347 !(ndlp
->nlp_fcp_info
&
349 /* We know we will have to relogin, so
350 * unreglogin the rpi right now to fail
351 * any outstanding I/Os quickly.
353 lpfc_unreg_rpi(phba
, ndlp
);
359 /* free any ndlp's on unused list */
360 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_unused_list
,
362 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
365 /* Setup myDID for link up if we are in pt2pt mode */
366 if (phba
->fc_flag
& FC_PT2PT
) {
368 if ((mb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
369 lpfc_config_link(phba
, mb
);
370 mb
->mbox_cmpl
=lpfc_sli_def_mbox_cmpl
;
371 if (lpfc_sli_issue_mbox
372 (phba
, mb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
373 == MBX_NOT_FINISHED
) {
374 mempool_free( mb
, phba
->mbox_mem_pool
);
377 spin_lock_irq(phba
->host
->host_lock
);
378 phba
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
);
379 spin_unlock_irq(phba
->host
->host_lock
);
381 spin_lock_irq(phba
->host
->host_lock
);
382 phba
->fc_flag
&= ~FC_LBIT
;
383 spin_unlock_irq(phba
->host
->host_lock
);
385 /* Turn off discovery timer if its running */
386 lpfc_can_disctmo(phba
);
388 /* Must process IOCBs on all rings to handle ABORTed I/Os */
393 lpfc_linkup(struct lpfc_hba
* phba
)
395 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
397 spin_lock_irq(phba
->host
->host_lock
);
398 phba
->hba_state
= LPFC_LINK_UP
;
399 phba
->fc_flag
&= ~(FC_PT2PT
| FC_PT2PT_PLOGI
| FC_ABORT_DISCOVERY
|
400 FC_RSCN_MODE
| FC_NLP_MORE
| FC_RSCN_DISCOVERY
);
401 phba
->fc_flag
|= FC_NDISC_ACTIVE
;
402 phba
->fc_ns_retry
= 0;
403 spin_unlock_irq(phba
->host
->host_lock
);
407 * Clean up old Fabric NLP_FABRIC logins.
409 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_nlpunmap_list
,
411 if (ndlp
->nlp_DID
== Fabric_DID
) {
412 /* Take it off current list and free */
413 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
417 /* free any ndlp's on unused list */
418 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_unused_list
,
420 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
427 * This routine handles processing a CLEAR_LA mailbox
428 * command upon completion. It is setup in the LPFC_MBOXQ
429 * as the completion routine when the command is
430 * handed off to the SLI layer.
433 lpfc_mbx_cmpl_clear_la(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
435 struct lpfc_sli
*psli
;
441 /* Since we don't do discovery right now, turn these off here */
442 psli
->ring
[psli
->ip_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
443 psli
->ring
[psli
->fcp_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
444 psli
->ring
[psli
->next_ring
].flag
&= ~LPFC_STOP_IOCB_EVENT
;
446 /* Check for error */
447 if ((mb
->mbxStatus
) && (mb
->mbxStatus
!= 0x1601)) {
448 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
449 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
450 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
452 phba
->brd_no
, mb
->mbxStatus
, phba
->hba_state
);
454 phba
->hba_state
= LPFC_HBA_ERROR
;
458 if (phba
->fc_flag
& FC_ABORT_DISCOVERY
)
461 phba
->num_disc_nodes
= 0;
462 /* go thru NPR list and issue ELS PLOGIs */
463 if (phba
->fc_npr_cnt
) {
464 lpfc_els_disc_plogi(phba
);
467 if(!phba
->num_disc_nodes
) {
468 spin_lock_irq(phba
->host
->host_lock
);
469 phba
->fc_flag
&= ~FC_NDISC_ACTIVE
;
470 spin_unlock_irq(phba
->host
->host_lock
);
473 phba
->hba_state
= LPFC_HBA_READY
;
476 /* Device Discovery completes */
477 lpfc_printf_log(phba
,
480 "%d:0225 Device Discovery completes\n",
483 mempool_free( pmb
, phba
->mbox_mem_pool
);
485 spin_lock_irq(phba
->host
->host_lock
);
486 phba
->fc_flag
&= ~FC_ABORT_DISCOVERY
;
487 if (phba
->fc_flag
& FC_ESTABLISH_LINK
) {
488 phba
->fc_flag
&= ~FC_ESTABLISH_LINK
;
490 spin_unlock_irq(phba
->host
->host_lock
);
492 del_timer_sync(&phba
->fc_estabtmo
);
494 lpfc_can_disctmo(phba
);
496 /* turn on Link Attention interrupts */
497 spin_lock_irq(phba
->host
->host_lock
);
498 psli
->sli_flag
|= LPFC_PROCESS_LA
;
499 control
= readl(phba
->HCregaddr
);
500 control
|= HC_LAINT_ENA
;
501 writel(control
, phba
->HCregaddr
);
502 readl(phba
->HCregaddr
); /* flush */
503 spin_unlock_irq(phba
->host
->host_lock
);
509 lpfc_mbx_cmpl_config_link(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
511 struct lpfc_sli
*psli
;
516 /* Check for error */
518 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
519 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
520 "%d:0306 CONFIG_LINK mbxStatus error x%x "
522 phba
->brd_no
, mb
->mbxStatus
, phba
->hba_state
);
525 phba
->hba_state
= LPFC_HBA_ERROR
;
529 if (phba
->hba_state
== LPFC_LOCAL_CFG_LINK
) {
530 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
531 /* If we are public loop and L bit was set */
532 if ((phba
->fc_flag
& FC_PUBLIC_LOOP
) &&
533 !(phba
->fc_flag
& FC_LBIT
)) {
534 /* Need to wait for FAN - use discovery timer
535 * for timeout. hba_state is identically
536 * LPFC_LOCAL_CFG_LINK while waiting for FAN
538 lpfc_set_disctmo(phba
);
539 mempool_free( pmb
, phba
->mbox_mem_pool
);
544 /* Start discovery by sending a FLOGI hba_state is identically
545 * LPFC_FLOGI while waiting for FLOGI cmpl
547 phba
->hba_state
= LPFC_FLOGI
;
548 lpfc_set_disctmo(phba
);
549 lpfc_initial_flogi(phba
);
550 mempool_free( pmb
, phba
->mbox_mem_pool
);
553 if (phba
->hba_state
== LPFC_FABRIC_CFG_LINK
) {
554 mempool_free( pmb
, phba
->mbox_mem_pool
);
559 /* CONFIG_LINK bad hba state <hba_state> */
560 lpfc_printf_log(phba
,
563 "%d:0200 CONFIG_LINK bad hba state x%x\n",
564 phba
->brd_no
, phba
->hba_state
);
566 if (phba
->hba_state
!= LPFC_CLEAR_LA
) {
567 lpfc_clear_la(phba
, pmb
);
568 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
569 if (lpfc_sli_issue_mbox(phba
, pmb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
570 == MBX_NOT_FINISHED
) {
571 mempool_free( pmb
, phba
->mbox_mem_pool
);
572 lpfc_disc_flush_list(phba
);
573 psli
->ring
[(psli
->ip_ring
)].flag
&=
574 ~LPFC_STOP_IOCB_EVENT
;
575 psli
->ring
[(psli
->fcp_ring
)].flag
&=
576 ~LPFC_STOP_IOCB_EVENT
;
577 psli
->ring
[(psli
->next_ring
)].flag
&=
578 ~LPFC_STOP_IOCB_EVENT
;
579 phba
->hba_state
= LPFC_HBA_READY
;
582 mempool_free( pmb
, phba
->mbox_mem_pool
);
588 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
590 struct lpfc_sli
*psli
= &phba
->sli
;
591 MAILBOX_t
*mb
= &pmb
->mb
;
592 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) pmb
->context1
;
595 /* Check for error */
597 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
598 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
599 "%d:0319 READ_SPARAM mbxStatus error x%x "
601 phba
->brd_no
, mb
->mbxStatus
, phba
->hba_state
);
604 phba
->hba_state
= LPFC_HBA_ERROR
;
608 memcpy((uint8_t *) & phba
->fc_sparam
, (uint8_t *) mp
->virt
,
609 sizeof (struct serv_parm
));
610 memcpy((uint8_t *) & phba
->fc_nodename
,
611 (uint8_t *) & phba
->fc_sparam
.nodeName
,
612 sizeof (struct lpfc_name
));
613 memcpy((uint8_t *) & phba
->fc_portname
,
614 (uint8_t *) & phba
->fc_sparam
.portName
,
615 sizeof (struct lpfc_name
));
616 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
618 mempool_free( pmb
, phba
->mbox_mem_pool
);
622 pmb
->context1
= NULL
;
623 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
625 if (phba
->hba_state
!= LPFC_CLEAR_LA
) {
626 lpfc_clear_la(phba
, pmb
);
627 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
628 if (lpfc_sli_issue_mbox(phba
, pmb
, (MBX_NOWAIT
| MBX_STOP_IOCB
))
629 == MBX_NOT_FINISHED
) {
630 mempool_free( pmb
, phba
->mbox_mem_pool
);
631 lpfc_disc_flush_list(phba
);
632 psli
->ring
[(psli
->ip_ring
)].flag
&=
633 ~LPFC_STOP_IOCB_EVENT
;
634 psli
->ring
[(psli
->fcp_ring
)].flag
&=
635 ~LPFC_STOP_IOCB_EVENT
;
636 psli
->ring
[(psli
->next_ring
)].flag
&=
637 ~LPFC_STOP_IOCB_EVENT
;
638 phba
->hba_state
= LPFC_HBA_READY
;
641 mempool_free( pmb
, phba
->mbox_mem_pool
);
647 lpfc_mbx_process_link_up(struct lpfc_hba
*phba
, READ_LA_VAR
*la
)
650 LPFC_MBOXQ_t
*sparam_mbox
, *cfglink_mbox
;
651 sparam_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
652 cfglink_mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
654 spin_lock_irq(phba
->host
->host_lock
);
655 switch(la
->UlnkSpeed
) {
657 phba
->fc_linkspeed
= LA_1GHZ_LINK
;
660 phba
->fc_linkspeed
= LA_2GHZ_LINK
;
663 phba
->fc_linkspeed
= LA_4GHZ_LINK
;
666 phba
->fc_linkspeed
= LA_UNKNW_LINK
;
670 phba
->fc_topology
= la
->topology
;
672 if (phba
->fc_topology
== TOPOLOGY_LOOP
) {
673 /* Get Loop Map information */
676 phba
->fc_flag
|= FC_LBIT
;
678 phba
->fc_myDID
= la
->granted_AL_PA
;
679 i
= la
->un
.lilpBde64
.tus
.f
.bdeSize
;
682 phba
->alpa_map
[0] = 0;
684 if (phba
->cfg_log_verbose
& LOG_LINK_EVENT
) {
695 numalpa
= phba
->alpa_map
[0];
697 while (j
< numalpa
) {
698 memset(un
.pamap
, 0, 16);
699 for (k
= 1; j
< numalpa
; k
++) {
701 phba
->alpa_map
[j
+ 1];
706 /* Link Up Event ALPA map */
707 lpfc_printf_log(phba
,
710 "%d:1304 Link Up Event "
711 "ALPA map Data: x%x "
714 un
.pa
.wd1
, un
.pa
.wd2
,
715 un
.pa
.wd3
, un
.pa
.wd4
);
720 phba
->fc_myDID
= phba
->fc_pref_DID
;
721 phba
->fc_flag
|= FC_LBIT
;
723 spin_unlock_irq(phba
->host
->host_lock
);
727 lpfc_read_sparam(phba
, sparam_mbox
);
728 sparam_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_read_sparam
;
729 lpfc_sli_issue_mbox(phba
, sparam_mbox
,
730 (MBX_NOWAIT
| MBX_STOP_IOCB
));
734 phba
->hba_state
= LPFC_LOCAL_CFG_LINK
;
735 lpfc_config_link(phba
, cfglink_mbox
);
736 cfglink_mbox
->mbox_cmpl
= lpfc_mbx_cmpl_config_link
;
737 lpfc_sli_issue_mbox(phba
, cfglink_mbox
,
738 (MBX_NOWAIT
| MBX_STOP_IOCB
));
743 lpfc_mbx_issue_link_down(struct lpfc_hba
*phba
) {
745 struct lpfc_sli
*psli
= &phba
->sli
;
749 /* turn on Link Attention interrupts - no CLEAR_LA needed */
750 spin_lock_irq(phba
->host
->host_lock
);
751 psli
->sli_flag
|= LPFC_PROCESS_LA
;
752 control
= readl(phba
->HCregaddr
);
753 control
|= HC_LAINT_ENA
;
754 writel(control
, phba
->HCregaddr
);
755 readl(phba
->HCregaddr
); /* flush */
756 spin_unlock_irq(phba
->host
->host_lock
);
760 * This routine handles processing a READ_LA mailbox
761 * command upon completion. It is setup in the LPFC_MBOXQ
762 * as the completion routine when the command is
763 * handed off to the SLI layer.
766 lpfc_mbx_cmpl_read_la(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
769 MAILBOX_t
*mb
= &pmb
->mb
;
770 struct lpfc_dmabuf
*mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
772 /* Check for error */
774 lpfc_printf_log(phba
,
777 "%d:1307 READ_LA mbox error x%x state x%x\n",
779 mb
->mbxStatus
, phba
->hba_state
);
780 lpfc_mbx_issue_link_down(phba
);
781 phba
->hba_state
= LPFC_HBA_ERROR
;
782 goto lpfc_mbx_cmpl_read_la_free_mbuf
;
785 la
= (READ_LA_VAR
*) & pmb
->mb
.un
.varReadLA
;
787 memcpy(&phba
->alpa_map
[0], mp
->virt
, 128);
789 if (((phba
->fc_eventTag
+ 1) < la
->eventTag
) ||
790 (phba
->fc_eventTag
== la
->eventTag
)) {
791 phba
->fc_stat
.LinkMultiEvent
++;
792 if (la
->attType
== AT_LINK_UP
) {
793 if (phba
->fc_eventTag
!= 0)
798 phba
->fc_eventTag
= la
->eventTag
;
800 if (la
->attType
== AT_LINK_UP
) {
801 phba
->fc_stat
.LinkUp
++;
802 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
803 "%d:1303 Link Up Event x%x received "
804 "Data: x%x x%x x%x x%x\n",
805 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
806 la
->granted_AL_PA
, la
->UlnkSpeed
,
808 lpfc_mbx_process_link_up(phba
, la
);
810 phba
->fc_stat
.LinkDown
++;
811 lpfc_printf_log(phba
, KERN_ERR
, LOG_LINK_EVENT
,
812 "%d:1305 Link Down Event x%x received "
813 "Data: x%x x%x x%x\n",
814 phba
->brd_no
, la
->eventTag
, phba
->fc_eventTag
,
815 phba
->hba_state
, phba
->fc_flag
);
816 lpfc_mbx_issue_link_down(phba
);
819 lpfc_mbx_cmpl_read_la_free_mbuf
:
820 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
822 mempool_free(pmb
, phba
->mbox_mem_pool
);
827 * This routine handles processing a REG_LOGIN mailbox
828 * command upon completion. It is setup in the LPFC_MBOXQ
829 * as the completion routine when the command is
830 * handed off to the SLI layer.
833 lpfc_mbx_cmpl_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
835 struct lpfc_sli
*psli
;
837 struct lpfc_dmabuf
*mp
;
838 struct lpfc_nodelist
*ndlp
;
843 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
844 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
846 pmb
->context1
= NULL
;
848 /* Good status, call state machine */
849 lpfc_disc_state_machine(phba
, ndlp
, pmb
, NLP_EVT_CMPL_REG_LOGIN
);
850 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
852 mempool_free( pmb
, phba
->mbox_mem_pool
);
858 * This routine handles processing a Fabric REG_LOGIN mailbox
859 * command upon completion. It is setup in the LPFC_MBOXQ
860 * as the completion routine when the command is
861 * handed off to the SLI layer.
864 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
866 struct lpfc_sli
*psli
;
868 struct lpfc_dmabuf
*mp
;
869 struct lpfc_nodelist
*ndlp
;
870 struct lpfc_nodelist
*ndlp_fdmi
;
876 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
877 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
880 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
882 mempool_free( pmb
, phba
->mbox_mem_pool
);
883 mempool_free( ndlp
, phba
->nlp_mem_pool
);
885 /* FLOGI failed, so just use loop map to make discovery list */
886 lpfc_disc_list_loopmap(phba
);
888 /* Start discovery */
889 lpfc_disc_start(phba
);
893 pmb
->context1
= NULL
;
895 if (ndlp
->nlp_rpi
!= 0)
896 lpfc_findnode_remove_rpi(phba
, ndlp
->nlp_rpi
);
897 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
898 lpfc_addnode_rpi(phba
, ndlp
, ndlp
->nlp_rpi
);
899 ndlp
->nlp_type
|= NLP_FABRIC
;
900 ndlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
901 lpfc_nlp_list(phba
, ndlp
, NLP_UNMAPPED_LIST
);
903 if (phba
->hba_state
== LPFC_FABRIC_CFG_LINK
) {
904 /* This NPort has been assigned an NPort_ID by the fabric as a
905 * result of the completed fabric login. Issue a State Change
906 * Registration (SCR) ELS request to the fabric controller
907 * (SCR_DID) so that this NPort gets RSCN events from the
910 lpfc_issue_els_scr(phba
, SCR_DID
, 0);
912 /* Allocate a new node instance. If the pool is empty, just
913 * start the discovery process and skip the Nameserver login
914 * process. This is attempted again later on. Otherwise, issue
915 * a Port Login (PLOGI) to the NameServer
917 if ((ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
))
919 lpfc_disc_start(phba
);
921 lpfc_nlp_init(phba
, ndlp
, NameServer_DID
);
922 ndlp
->nlp_type
|= NLP_FABRIC
;
923 ndlp
->nlp_state
= NLP_STE_PLOGI_ISSUE
;
924 lpfc_nlp_list(phba
, ndlp
, NLP_PLOGI_LIST
);
925 lpfc_issue_els_plogi(phba
, ndlp
, 0);
926 if (phba
->cfg_fdmi_on
) {
927 if ((ndlp_fdmi
= mempool_alloc(
930 lpfc_nlp_init(phba
, ndlp_fdmi
,
932 ndlp_fdmi
->nlp_type
|= NLP_FABRIC
;
933 ndlp_fdmi
->nlp_state
=
935 lpfc_issue_els_plogi(phba
, ndlp_fdmi
,
942 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
944 mempool_free( pmb
, phba
->mbox_mem_pool
);
950 * This routine handles processing a NameServer REG_LOGIN mailbox
951 * command upon completion. It is setup in the LPFC_MBOXQ
952 * as the completion routine when the command is
953 * handed off to the SLI layer.
956 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
958 struct lpfc_sli
*psli
;
960 struct lpfc_dmabuf
*mp
;
961 struct lpfc_nodelist
*ndlp
;
966 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
967 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
970 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
972 mempool_free( pmb
, phba
->mbox_mem_pool
);
973 lpfc_nlp_list(phba
, ndlp
, NLP_NO_LIST
);
975 /* RegLogin failed, so just use loop map to make discovery
977 lpfc_disc_list_loopmap(phba
);
979 /* Start discovery */
980 lpfc_disc_start(phba
);
984 pmb
->context1
= NULL
;
986 if (ndlp
->nlp_rpi
!= 0)
987 lpfc_findnode_remove_rpi(phba
, ndlp
->nlp_rpi
);
988 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
989 lpfc_addnode_rpi(phba
, ndlp
, ndlp
->nlp_rpi
);
990 ndlp
->nlp_type
|= NLP_FABRIC
;
991 ndlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
992 lpfc_nlp_list(phba
, ndlp
, NLP_UNMAPPED_LIST
);
994 if (phba
->hba_state
< LPFC_HBA_READY
) {
995 /* Link up discovery requires Fabrib registration. */
996 lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_RNN_ID
);
997 lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_RSNN_NN
);
998 lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_RFT_ID
);
1001 phba
->fc_ns_retry
= 0;
1002 /* Good status, issue CT Request to NameServer */
1003 if (lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_GID_FT
)) {
1004 /* Cannot issue NameServer Query, so finish up discovery */
1005 lpfc_disc_start(phba
);
1008 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1010 mempool_free( pmb
, phba
->mbox_mem_pool
);
1016 lpfc_register_remote_port(struct lpfc_hba
* phba
,
1017 struct lpfc_nodelist
* ndlp
)
1019 struct fc_rport
*rport
;
1020 struct lpfc_rport_data
*rdata
;
1021 struct fc_rport_identifiers rport_ids
;
1024 /* Remote port has reappeared. Re-register w/ FC transport */
1025 memcpy(&wwn
, &ndlp
->nlp_nodename
, sizeof(uint64_t));
1026 rport_ids
.node_name
= be64_to_cpu(wwn
);
1027 memcpy(&wwn
, &ndlp
->nlp_portname
, sizeof(uint64_t));
1028 rport_ids
.port_name
= be64_to_cpu(wwn
);
1029 rport_ids
.port_id
= ndlp
->nlp_DID
;
1030 rport_ids
.roles
= FC_RPORT_ROLE_UNKNOWN
;
1031 if (ndlp
->nlp_type
& NLP_FCP_TARGET
)
1032 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_TARGET
;
1033 if (ndlp
->nlp_type
& NLP_FCP_INITIATOR
)
1034 rport_ids
.roles
|= FC_RPORT_ROLE_FCP_INITIATOR
;
1036 ndlp
->rport
= rport
= fc_remote_port_add(phba
->host
, 0, &rport_ids
);
1038 dev_printk(KERN_WARNING
, &phba
->pcidev
->dev
,
1039 "Warning: fc_remote_port_add failed\n");
1043 /* initialize static port data */
1044 rport
->maxframe_size
= ndlp
->nlp_maxframe
;
1045 rport
->supported_classes
= ndlp
->nlp_class_sup
;
1046 if ((rport
->scsi_target_id
!= -1) &&
1047 (rport
->scsi_target_id
< MAX_FCP_TARGET
)) {
1048 ndlp
->nlp_sid
= rport
->scsi_target_id
;
1050 rdata
= rport
->dd_data
;
1051 rdata
->pnode
= ndlp
;
1057 lpfc_nlp_list(struct lpfc_hba
* phba
, struct lpfc_nodelist
* nlp
, int list
)
1059 enum { none
, unmapped
, mapped
} rport_add
= none
, rport_del
= none
;
1060 struct lpfc_sli
*psli
;
1063 /* Sanity check to ensure we are not moving to / from the same list */
1064 if ((nlp
->nlp_flag
& NLP_LIST_MASK
) == list
) {
1065 if (list
!= NLP_NO_LIST
)
1069 switch(nlp
->nlp_flag
& NLP_LIST_MASK
) {
1070 case NLP_NO_LIST
: /* Not on any list */
1072 case NLP_UNUSED_LIST
:
1073 phba
->fc_unused_cnt
--;
1074 list_del(&nlp
->nlp_listp
);
1076 case NLP_PLOGI_LIST
:
1077 phba
->fc_plogi_cnt
--;
1078 list_del(&nlp
->nlp_listp
);
1080 case NLP_ADISC_LIST
:
1081 phba
->fc_adisc_cnt
--;
1082 list_del(&nlp
->nlp_listp
);
1084 case NLP_REGLOGIN_LIST
:
1085 phba
->fc_reglogin_cnt
--;
1086 list_del(&nlp
->nlp_listp
);
1089 phba
->fc_prli_cnt
--;
1090 list_del(&nlp
->nlp_listp
);
1092 case NLP_UNMAPPED_LIST
:
1093 phba
->fc_unmap_cnt
--;
1094 list_del(&nlp
->nlp_listp
);
1095 spin_lock_irq(phba
->host
->host_lock
);
1096 nlp
->nlp_flag
&= ~NLP_TGT_NO_SCSIID
;
1097 nlp
->nlp_type
&= ~NLP_FC_NODE
;
1098 spin_unlock_irq(phba
->host
->host_lock
);
1099 phba
->nport_event_cnt
++;
1101 rport_del
= unmapped
;
1103 case NLP_MAPPED_LIST
:
1105 list_del(&nlp
->nlp_listp
);
1106 phba
->nport_event_cnt
++;
1112 list_del(&nlp
->nlp_listp
);
1113 /* Stop delay tmo if taking node off NPR list */
1114 if ((nlp
->nlp_flag
& NLP_DELAY_TMO
) &&
1115 (list
!= NLP_NPR_LIST
)) {
1116 spin_lock_irq(phba
->host
->host_lock
);
1117 nlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
1118 spin_unlock_irq(phba
->host
->host_lock
);
1119 del_timer_sync(&nlp
->nlp_delayfunc
);
1120 if (!list_empty(&nlp
->els_retry_evt
.evt_listp
))
1121 list_del_init(&nlp
->els_retry_evt
.evt_listp
);
1126 spin_lock_irq(phba
->host
->host_lock
);
1127 nlp
->nlp_flag
&= ~NLP_LIST_MASK
;
1128 spin_unlock_irq(phba
->host
->host_lock
);
1130 /* Add NPort <did> to <num> list */
1131 lpfc_printf_log(phba
,
1134 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1136 nlp
->nlp_DID
, list
, nlp
->nlp_flag
);
1139 case NLP_NO_LIST
: /* No list, just remove it */
1140 lpfc_nlp_remove(phba
, nlp
);
1142 case NLP_UNUSED_LIST
:
1143 spin_lock_irq(phba
->host
->host_lock
);
1144 nlp
->nlp_flag
|= list
;
1145 spin_unlock_irq(phba
->host
->host_lock
);
1146 /* Put it at the end of the unused list */
1147 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_unused_list
);
1148 phba
->fc_unused_cnt
++;
1150 case NLP_PLOGI_LIST
:
1151 spin_lock_irq(phba
->host
->host_lock
);
1152 nlp
->nlp_flag
|= list
;
1153 spin_unlock_irq(phba
->host
->host_lock
);
1154 /* Put it at the end of the plogi list */
1155 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_plogi_list
);
1156 phba
->fc_plogi_cnt
++;
1158 case NLP_ADISC_LIST
:
1159 spin_lock_irq(phba
->host
->host_lock
);
1160 nlp
->nlp_flag
|= list
;
1161 spin_unlock_irq(phba
->host
->host_lock
);
1162 /* Put it at the end of the adisc list */
1163 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_adisc_list
);
1164 phba
->fc_adisc_cnt
++;
1166 case NLP_REGLOGIN_LIST
:
1167 spin_lock_irq(phba
->host
->host_lock
);
1168 nlp
->nlp_flag
|= list
;
1169 spin_unlock_irq(phba
->host
->host_lock
);
1170 /* Put it at the end of the reglogin list */
1171 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_reglogin_list
);
1172 phba
->fc_reglogin_cnt
++;
1175 spin_lock_irq(phba
->host
->host_lock
);
1176 nlp
->nlp_flag
|= list
;
1177 spin_unlock_irq(phba
->host
->host_lock
);
1178 /* Put it at the end of the prli list */
1179 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_prli_list
);
1180 phba
->fc_prli_cnt
++;
1182 case NLP_UNMAPPED_LIST
:
1183 rport_add
= unmapped
;
1184 /* ensure all vestiges of "mapped" significance are gone */
1185 nlp
->nlp_type
&= ~(NLP_FCP_TARGET
| NLP_FCP_INITIATOR
);
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 unmap list */
1190 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_nlpunmap_list
);
1191 phba
->fc_unmap_cnt
++;
1192 phba
->nport_event_cnt
++;
1193 /* stop nodev tmo if running */
1194 if (nlp
->nlp_flag
& NLP_NODEV_TMO
) {
1195 spin_lock_irq(phba
->host
->host_lock
);
1196 nlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
1197 spin_unlock_irq(phba
->host
->host_lock
);
1198 del_timer_sync(&nlp
->nlp_tmofunc
);
1199 if (!list_empty(&nlp
->nodev_timeout_evt
.evt_listp
))
1200 list_del_init(&nlp
->nodev_timeout_evt
.
1204 nlp
->nlp_type
|= NLP_FC_NODE
;
1206 case NLP_MAPPED_LIST
:
1208 spin_lock_irq(phba
->host
->host_lock
);
1209 nlp
->nlp_flag
|= list
;
1210 spin_unlock_irq(phba
->host
->host_lock
);
1211 /* Put it at the end of the map list */
1212 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_nlpmap_list
);
1214 phba
->nport_event_cnt
++;
1215 /* stop nodev tmo if running */
1216 if (nlp
->nlp_flag
& NLP_NODEV_TMO
) {
1217 nlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
1218 del_timer_sync(&nlp
->nlp_tmofunc
);
1219 if (!list_empty(&nlp
->nodev_timeout_evt
.evt_listp
))
1220 list_del_init(&nlp
->nodev_timeout_evt
.
1226 spin_lock_irq(phba
->host
->host_lock
);
1227 nlp
->nlp_flag
|= list
;
1228 spin_unlock_irq(phba
->host
->host_lock
);
1229 /* Put it at the end of the npr list */
1230 list_add_tail(&nlp
->nlp_listp
, &phba
->fc_npr_list
);
1234 * Sanity check for Fabric entity.
1235 * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1237 if (nlp
->nlp_type
& NLP_FABRIC
) {
1238 mod_timer(&nlp
->nlp_tmofunc
, jiffies
+ HZ
);
1241 mod_timer(&nlp
->nlp_tmofunc
,
1242 jiffies
+ HZ
* phba
->cfg_nodev_tmo
);
1244 spin_lock_irq(phba
->host
->host_lock
);
1245 nlp
->nlp_flag
|= NLP_NODEV_TMO
;
1246 nlp
->nlp_flag
&= ~NLP_RCV_PLOGI
;
1247 spin_unlock_irq(phba
->host
->host_lock
);
1254 * We make all the calls into the transport after we have
1255 * moved the node between lists. This so that we don't
1256 * release the lock while in-between lists.
1259 /* Don't upcall midlayer if we're unloading */
1260 if (!(phba
->fc_flag
& FC_UNLOADING
)) {
1262 * We revalidate the rport pointer as the "add" function
1263 * may have removed the remote port.
1265 if ((rport_del
!= none
) && nlp
->rport
)
1266 fc_remote_port_block(nlp
->rport
);
1268 if (rport_add
!= none
) {
1270 * Tell the fc transport about the port, if we haven't
1271 * already. If we have, and it's a scsi entity, be
1272 * sure to unblock any attached scsi devices
1275 lpfc_register_remote_port(phba
, nlp
);
1277 fc_remote_port_unblock(nlp
->rport
);
1280 * if we added to Mapped list, but the remote port
1281 * registration failed or assigned a target id outside
1282 * our presentable range - move the node to the
1285 if ((rport_add
== mapped
) &&
1287 (nlp
->rport
->scsi_target_id
== -1) ||
1288 (nlp
->rport
->scsi_target_id
>= MAX_FCP_TARGET
))) {
1289 nlp
->nlp_state
= NLP_STE_UNMAPPED_NODE
;
1290 spin_lock_irq(phba
->host
->host_lock
);
1291 nlp
->nlp_flag
|= NLP_TGT_NO_SCSIID
;
1292 spin_unlock_irq(phba
->host
->host_lock
);
1293 lpfc_nlp_list(phba
, nlp
, NLP_UNMAPPED_LIST
);
1301 * Start / ReStart rescue timer for Discovery / RSCN handling
1304 lpfc_set_disctmo(struct lpfc_hba
* phba
)
1308 tmo
= ((phba
->fc_ratov
* 2) + 1);
1310 mod_timer(&phba
->fc_disctmo
, jiffies
+ HZ
* tmo
);
1311 spin_lock_irq(phba
->host
->host_lock
);
1312 phba
->fc_flag
|= FC_DISC_TMO
;
1313 spin_unlock_irq(phba
->host
->host_lock
);
1315 /* Start Discovery Timer state <hba_state> */
1316 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1317 "%d:0247 Start Discovery Timer state x%x "
1318 "Data: x%x x%lx x%x x%x\n",
1320 phba
->hba_state
, tmo
, (unsigned long)&phba
->fc_disctmo
,
1321 phba
->fc_plogi_cnt
, phba
->fc_adisc_cnt
);
1327 * Cancel rescue timer for Discovery / RSCN handling
1330 lpfc_can_disctmo(struct lpfc_hba
* phba
)
1332 /* Turn off discovery timer if its running */
1333 if (phba
->fc_flag
& FC_DISC_TMO
) {
1334 spin_lock_irq(phba
->host
->host_lock
);
1335 phba
->fc_flag
&= ~FC_DISC_TMO
;
1336 spin_unlock_irq(phba
->host
->host_lock
);
1337 del_timer_sync(&phba
->fc_disctmo
);
1338 phba
->work_hba_events
&= ~WORKER_DISC_TMO
;
1341 /* Cancel Discovery Timer state <hba_state> */
1342 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1343 "%d:0248 Cancel Discovery Timer state x%x "
1344 "Data: x%x x%x x%x\n",
1345 phba
->brd_no
, phba
->hba_state
, phba
->fc_flag
,
1346 phba
->fc_plogi_cnt
, phba
->fc_adisc_cnt
);
1352 * Check specified ring for outstanding IOCB on the SLI queue
1353 * Return true if iocb matches the specified nport
1356 lpfc_check_sli_ndlp(struct lpfc_hba
* phba
,
1357 struct lpfc_sli_ring
* pring
,
1358 struct lpfc_iocbq
* iocb
, struct lpfc_nodelist
* ndlp
)
1360 struct lpfc_sli
*psli
;
1365 if (pring
->ringno
== LPFC_ELS_RING
) {
1366 switch (icmd
->ulpCommand
) {
1367 case CMD_GEN_REQUEST64_CR
:
1368 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
)
1370 case CMD_ELS_REQUEST64_CR
:
1371 case CMD_XMIT_ELS_RSP64_CX
:
1372 if (iocb
->context1
== (uint8_t *) ndlp
)
1375 } else if (pring
->ringno
== psli
->ip_ring
) {
1377 } else if (pring
->ringno
== psli
->fcp_ring
) {
1378 /* Skip match check if waiting to relogin to FCP target */
1379 if ((ndlp
->nlp_type
& NLP_FCP_TARGET
) &&
1380 (ndlp
->nlp_flag
& NLP_DELAY_TMO
)) {
1383 if (icmd
->ulpContext
== (volatile ushort
)ndlp
->nlp_rpi
) {
1386 } else if (pring
->ringno
== psli
->next_ring
) {
1393 * Free resources / clean up outstanding I/Os
1394 * associated with nlp_rpi in the LPFC_NODELIST entry.
1397 lpfc_no_rpi(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1399 struct lpfc_sli
*psli
;
1400 struct lpfc_sli_ring
*pring
;
1401 struct lpfc_iocbq
*iocb
, *next_iocb
;
1406 * Everything that matches on txcmplq will be returned
1407 * by firmware with a no rpi error.
1410 rpi
= ndlp
->nlp_rpi
;
1412 /* Now process each ring */
1413 for (i
= 0; i
< psli
->num_rings
; i
++) {
1414 pring
= &psli
->ring
[i
];
1416 spin_lock_irq(phba
->host
->host_lock
);
1417 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
,
1420 * Check to see if iocb matches the nport we are
1423 if ((lpfc_check_sli_ndlp
1424 (phba
, pring
, iocb
, ndlp
))) {
1425 /* It matches, so deque and call compl
1427 list_del(&iocb
->list
);
1429 if (iocb
->iocb_cmpl
) {
1432 IOSTAT_LOCAL_REJECT
;
1433 icmd
->un
.ulpWord
[4] =
1435 spin_unlock_irq(phba
->host
->
1437 (iocb
->iocb_cmpl
) (phba
,
1439 spin_lock_irq(phba
->host
->
1442 list_add_tail(&iocb
->list
,
1443 &phba
->lpfc_iocb_list
);
1447 spin_unlock_irq(phba
->host
->host_lock
);
1455 * Free rpi associated with LPFC_NODELIST entry.
1456 * This routine is called from lpfc_freenode(), when we are removing
1457 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1458 * LOGO that completes successfully, and we are waiting to PLOGI back
1459 * to the remote NPort. In addition, it is called after we receive
1460 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1461 * we are waiting to PLOGI back to the remote NPort.
1464 lpfc_unreg_rpi(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1469 if (ndlp
->nlp_rpi
) {
1470 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
1471 lpfc_unreg_login(phba
, ndlp
->nlp_rpi
, mbox
);
1472 mbox
->mbox_cmpl
=lpfc_sli_def_mbox_cmpl
;
1473 rc
= lpfc_sli_issue_mbox
1474 (phba
, mbox
, (MBX_NOWAIT
| MBX_STOP_IOCB
));
1475 if (rc
== MBX_NOT_FINISHED
)
1476 mempool_free( mbox
, phba
->mbox_mem_pool
);
1478 lpfc_findnode_remove_rpi(phba
, ndlp
->nlp_rpi
);
1479 lpfc_no_rpi(phba
, ndlp
);
1487 * Free resources associated with LPFC_NODELIST entry
1488 * so it can be freed.
1491 lpfc_freenode(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1494 LPFC_MBOXQ_t
*nextmb
;
1495 struct lpfc_dmabuf
*mp
;
1496 struct fc_rport
*rport
;
1498 /* Cleanup node for NPort <nlp_DID> */
1499 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1500 "%d:0900 Cleanup node for NPort x%x "
1501 "Data: x%x x%x x%x\n",
1502 phba
->brd_no
, ndlp
->nlp_DID
, ndlp
->nlp_flag
,
1503 ndlp
->nlp_state
, ndlp
->nlp_rpi
);
1505 lpfc_nlp_list(phba
, ndlp
, NLP_JUST_DQ
);
1508 * if unloading the driver - just leave the remote port in place.
1509 * The driver unload will force the attached devices to detach
1510 * and flush cache's w/o generating flush errors.
1512 if ((ndlp
->rport
) && !(phba
->fc_flag
& FC_UNLOADING
)) {
1513 rport
= ndlp
->rport
;
1515 fc_remote_port_unblock(rport
);
1516 fc_remote_port_delete(rport
);
1517 ndlp
->nlp_sid
= NLP_NO_SID
;
1520 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1521 if ((mb
= phba
->sli
.mbox_active
)) {
1522 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
1523 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
1524 mb
->context2
= NULL
;
1525 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1528 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
1529 if ((mb
->mb
.mbxCommand
== MBX_REG_LOGIN64
) &&
1530 (ndlp
== (struct lpfc_nodelist
*) mb
->context2
)) {
1531 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
1533 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1536 list_del(&mb
->list
);
1537 mempool_free(mb
, phba
->mbox_mem_pool
);
1541 lpfc_els_abort(phba
,ndlp
,0);
1542 spin_lock_irq(phba
->host
->host_lock
);
1543 ndlp
->nlp_flag
&= ~(NLP_NODEV_TMO
|NLP_DELAY_TMO
);
1544 spin_unlock_irq(phba
->host
->host_lock
);
1545 del_timer_sync(&ndlp
->nlp_tmofunc
);
1547 del_timer_sync(&ndlp
->nlp_delayfunc
);
1549 if (!list_empty(&ndlp
->nodev_timeout_evt
.evt_listp
))
1550 list_del_init(&ndlp
->nodev_timeout_evt
.evt_listp
);
1551 if (!list_empty(&ndlp
->els_retry_evt
.evt_listp
))
1552 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
1554 lpfc_unreg_rpi(phba
, ndlp
);
1560 * Check to see if we can free the nlp back to the freelist.
1561 * If we are in the middle of using the nlp in the discovery state
1562 * machine, defer the free till we reach the end of the state machine.
1565 lpfc_nlp_remove(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
1567 if (ndlp
->nlp_flag
& NLP_NODEV_TMO
) {
1568 spin_lock_irq(phba
->host
->host_lock
);
1569 ndlp
->nlp_flag
&= ~NLP_NODEV_TMO
;
1570 spin_unlock_irq(phba
->host
->host_lock
);
1571 del_timer_sync(&ndlp
->nlp_tmofunc
);
1572 if (!list_empty(&ndlp
->nodev_timeout_evt
.evt_listp
))
1573 list_del_init(&ndlp
->nodev_timeout_evt
.evt_listp
);
1578 if (ndlp
->nlp_flag
& NLP_DELAY_TMO
) {
1579 spin_lock_irq(phba
->host
->host_lock
);
1580 ndlp
->nlp_flag
&= ~NLP_DELAY_TMO
;
1581 spin_unlock_irq(phba
->host
->host_lock
);
1582 del_timer_sync(&ndlp
->nlp_delayfunc
);
1583 if (!list_empty(&ndlp
->els_retry_evt
.evt_listp
))
1584 list_del_init(&ndlp
->els_retry_evt
.evt_listp
);
1587 if (ndlp
->nlp_disc_refcnt
) {
1588 spin_lock_irq(phba
->host
->host_lock
);
1589 ndlp
->nlp_flag
|= NLP_DELAY_REMOVE
;
1590 spin_unlock_irq(phba
->host
->host_lock
);
1593 lpfc_freenode(phba
, ndlp
);
1594 mempool_free( ndlp
, phba
->nlp_mem_pool
);
1600 lpfc_matchdid(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
, uint32_t did
)
1606 if (did
== Bcast_DID
)
1609 if (ndlp
->nlp_DID
== 0) {
1613 /* First check for Direct match */
1614 if (ndlp
->nlp_DID
== did
)
1617 /* Next check for area/domain identically equals 0 match */
1618 mydid
.un
.word
= phba
->fc_myDID
;
1619 if ((mydid
.un
.b
.domain
== 0) && (mydid
.un
.b
.area
== 0)) {
1623 matchdid
.un
.word
= did
;
1624 ndlpdid
.un
.word
= ndlp
->nlp_DID
;
1625 if (matchdid
.un
.b
.id
== ndlpdid
.un
.b
.id
) {
1626 if ((mydid
.un
.b
.domain
== matchdid
.un
.b
.domain
) &&
1627 (mydid
.un
.b
.area
== matchdid
.un
.b
.area
)) {
1628 if ((ndlpdid
.un
.b
.domain
== 0) &&
1629 (ndlpdid
.un
.b
.area
== 0)) {
1630 if (ndlpdid
.un
.b
.id
)
1636 matchdid
.un
.word
= ndlp
->nlp_DID
;
1637 if ((mydid
.un
.b
.domain
== ndlpdid
.un
.b
.domain
) &&
1638 (mydid
.un
.b
.area
== ndlpdid
.un
.b
.area
)) {
1639 if ((matchdid
.un
.b
.domain
== 0) &&
1640 (matchdid
.un
.b
.area
== 0)) {
1641 if (matchdid
.un
.b
.id
)
1649 /* Search for a nodelist entry on a specific list */
1650 struct lpfc_nodelist
*
1651 lpfc_findnode_did(struct lpfc_hba
* phba
, uint32_t order
, uint32_t did
)
1653 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
1656 if (order
& NLP_SEARCH_UNMAPPED
) {
1657 list_for_each_entry_safe(ndlp
, next_ndlp
,
1658 &phba
->fc_nlpunmap_list
, nlp_listp
) {
1659 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1660 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1661 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1662 ((uint32_t) ndlp
->nlp_type
<< 8) |
1663 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1664 /* FIND node DID unmapped */
1665 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1666 "%d:0929 FIND node DID unmapped"
1667 " Data: x%p x%x x%x x%x\n",
1669 ndlp
, ndlp
->nlp_DID
,
1670 ndlp
->nlp_flag
, data1
);
1676 if (order
& NLP_SEARCH_MAPPED
) {
1677 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_nlpmap_list
,
1679 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1681 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1682 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1683 ((uint32_t) ndlp
->nlp_type
<< 8) |
1684 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1685 /* FIND node DID mapped */
1686 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1687 "%d:0930 FIND node DID mapped "
1688 "Data: x%p x%x x%x x%x\n",
1690 ndlp
, ndlp
->nlp_DID
,
1691 ndlp
->nlp_flag
, data1
);
1697 if (order
& NLP_SEARCH_PLOGI
) {
1698 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_plogi_list
,
1700 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1702 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1703 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1704 ((uint32_t) ndlp
->nlp_type
<< 8) |
1705 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1706 /* LOG change to PLOGI */
1707 /* FIND node DID plogi */
1708 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1709 "%d:0908 FIND node DID plogi "
1710 "Data: x%p x%x x%x x%x\n",
1712 ndlp
, ndlp
->nlp_DID
,
1713 ndlp
->nlp_flag
, data1
);
1719 if (order
& NLP_SEARCH_ADISC
) {
1720 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_adisc_list
,
1722 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1724 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1725 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1726 ((uint32_t) ndlp
->nlp_type
<< 8) |
1727 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1728 /* LOG change to ADISC */
1729 /* FIND node DID adisc */
1730 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1731 "%d:0931 FIND node DID adisc "
1732 "Data: x%p x%x x%x x%x\n",
1734 ndlp
, ndlp
->nlp_DID
,
1735 ndlp
->nlp_flag
, data1
);
1741 if (order
& NLP_SEARCH_REGLOGIN
) {
1742 list_for_each_entry_safe(ndlp
, next_ndlp
,
1743 &phba
->fc_reglogin_list
, nlp_listp
) {
1744 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1746 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1747 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1748 ((uint32_t) ndlp
->nlp_type
<< 8) |
1749 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1750 /* LOG change to REGLOGIN */
1751 /* FIND node DID reglogin */
1752 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1753 "%d:0931 FIND node DID reglogin"
1754 " Data: x%p x%x x%x x%x\n",
1756 ndlp
, ndlp
->nlp_DID
,
1757 ndlp
->nlp_flag
, data1
);
1763 if (order
& NLP_SEARCH_PRLI
) {
1764 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_prli_list
,
1766 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1768 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1769 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1770 ((uint32_t) ndlp
->nlp_type
<< 8) |
1771 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1772 /* LOG change to PRLI */
1773 /* FIND node DID prli */
1774 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1775 "%d:0931 FIND node DID prli "
1776 "Data: x%p x%x x%x x%x\n",
1778 ndlp
, ndlp
->nlp_DID
,
1779 ndlp
->nlp_flag
, data1
);
1785 if (order
& NLP_SEARCH_NPR
) {
1786 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_npr_list
,
1788 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1790 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1791 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1792 ((uint32_t) ndlp
->nlp_type
<< 8) |
1793 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1794 /* LOG change to NPR */
1795 /* FIND node DID npr */
1796 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1797 "%d:0931 FIND node DID npr "
1798 "Data: x%p x%x x%x x%x\n",
1800 ndlp
, ndlp
->nlp_DID
,
1801 ndlp
->nlp_flag
, data1
);
1807 if (order
& NLP_SEARCH_UNUSED
) {
1808 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_adisc_list
,
1810 if (lpfc_matchdid(phba
, ndlp
, did
)) {
1812 data1
= (((uint32_t) ndlp
->nlp_state
<< 24) |
1813 ((uint32_t) ndlp
->nlp_xri
<< 16) |
1814 ((uint32_t) ndlp
->nlp_type
<< 8) |
1815 ((uint32_t) ndlp
->nlp_rpi
& 0xff));
1816 /* LOG change to UNUSED */
1817 /* FIND node DID unused */
1818 lpfc_printf_log(phba
, KERN_INFO
, LOG_NODE
,
1819 "%d:0931 FIND node DID unused "
1820 "Data: x%p x%x x%x x%x\n",
1822 ndlp
, ndlp
->nlp_DID
,
1823 ndlp
->nlp_flag
, data1
);
1829 /* FIND node did <did> NOT FOUND */
1830 lpfc_printf_log(phba
,
1833 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1834 phba
->brd_no
, did
, order
);
1836 /* no match found */
1840 struct lpfc_nodelist
*
1841 lpfc_setup_disc_node(struct lpfc_hba
* phba
, uint32_t did
)
1843 struct lpfc_nodelist
*ndlp
;
1846 if ((ndlp
= lpfc_findnode_did(phba
, NLP_SEARCH_ALL
, did
)) == 0) {
1847 if ((phba
->hba_state
== LPFC_HBA_READY
) &&
1848 ((lpfc_rscn_payload_check(phba
, did
) == 0)))
1850 ndlp
= (struct lpfc_nodelist
*)
1851 mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
1854 lpfc_nlp_init(phba
, ndlp
, did
);
1855 ndlp
->nlp_state
= NLP_STE_NPR_NODE
;
1856 lpfc_nlp_list(phba
, ndlp
, NLP_NPR_LIST
);
1857 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1860 if ((phba
->hba_state
== LPFC_HBA_READY
) &&
1861 (phba
->fc_flag
& FC_RSCN_MODE
)) {
1862 if (lpfc_rscn_payload_check(phba
, did
)) {
1863 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1866 ndlp
->nlp_flag
&= ~NLP_NPR_2B_DISC
;
1871 flg
= ndlp
->nlp_flag
& NLP_LIST_MASK
;
1872 if ((flg
== NLP_ADISC_LIST
) ||
1873 (flg
== NLP_PLOGI_LIST
)) {
1876 ndlp
->nlp_state
= NLP_STE_NPR_NODE
;
1877 lpfc_nlp_list(phba
, ndlp
, NLP_NPR_LIST
);
1878 ndlp
->nlp_flag
|= NLP_NPR_2B_DISC
;
1883 /* Build a list of nodes to discover based on the loopmap */
1885 lpfc_disc_list_loopmap(struct lpfc_hba
* phba
)
1888 uint32_t alpa
, index
;
1890 if (phba
->hba_state
<= LPFC_LINK_DOWN
) {
1893 if (phba
->fc_topology
!= TOPOLOGY_LOOP
) {
1897 /* Check for loop map present or not */
1898 if (phba
->alpa_map
[0]) {
1899 for (j
= 1; j
<= phba
->alpa_map
[0]; j
++) {
1900 alpa
= phba
->alpa_map
[j
];
1902 if (((phba
->fc_myDID
& 0xff) == alpa
) || (alpa
== 0)) {
1905 lpfc_setup_disc_node(phba
, alpa
);
1908 /* No alpamap, so try all alpa's */
1909 for (j
= 0; j
< FC_MAXLOOP
; j
++) {
1910 /* If cfg_scan_down is set, start from highest
1911 * ALPA (0xef) to lowest (0x1).
1913 if (phba
->cfg_scan_down
)
1916 index
= FC_MAXLOOP
- j
- 1;
1917 alpa
= lpfcAlpaArray
[index
];
1918 if ((phba
->fc_myDID
& 0xff) == alpa
) {
1922 lpfc_setup_disc_node(phba
, alpa
);
1928 /* Start Link up / RSCN discovery on NPR list */
1930 lpfc_disc_start(struct lpfc_hba
* phba
)
1932 struct lpfc_sli
*psli
;
1934 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
1935 uint32_t did_changed
, num_sent
;
1936 uint32_t clear_la_pending
;
1941 if (phba
->hba_state
<= LPFC_LINK_DOWN
) {
1944 if (phba
->hba_state
== LPFC_CLEAR_LA
)
1945 clear_la_pending
= 1;
1947 clear_la_pending
= 0;
1949 if (phba
->hba_state
< LPFC_HBA_READY
) {
1950 phba
->hba_state
= LPFC_DISC_AUTH
;
1952 lpfc_set_disctmo(phba
);
1954 if (phba
->fc_prevDID
== phba
->fc_myDID
) {
1959 phba
->fc_prevDID
= phba
->fc_myDID
;
1960 phba
->num_disc_nodes
= 0;
1962 /* Start Discovery state <hba_state> */
1963 lpfc_printf_log(phba
, KERN_INFO
, LOG_DISCOVERY
,
1964 "%d:0202 Start Discovery hba state x%x "
1965 "Data: x%x x%x x%x\n",
1966 phba
->brd_no
, phba
->hba_state
, phba
->fc_flag
,
1967 phba
->fc_plogi_cnt
, phba
->fc_adisc_cnt
);
1969 /* If our did changed, we MUST do PLOGI */
1970 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_npr_list
,
1972 if (ndlp
->nlp_flag
& NLP_NPR_2B_DISC
) {
1974 spin_lock_irq(phba
->host
->host_lock
);
1975 ndlp
->nlp_flag
&= ~NLP_NPR_ADISC
;
1976 spin_unlock_irq(phba
->host
->host_lock
);
1981 /* First do ADISCs - if any */
1982 num_sent
= lpfc_els_disc_adisc(phba
);
1987 if ((phba
->hba_state
< LPFC_HBA_READY
) && (!clear_la_pending
)) {
1988 /* If we get here, there is nothing to ADISC */
1989 if ((mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
))) {
1990 phba
->hba_state
= LPFC_CLEAR_LA
;
1991 lpfc_clear_la(phba
, mbox
);
1992 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
1993 rc
= lpfc_sli_issue_mbox(phba
, mbox
,
1994 (MBX_NOWAIT
| MBX_STOP_IOCB
));
1995 if (rc
== MBX_NOT_FINISHED
) {
1996 mempool_free( mbox
, phba
->mbox_mem_pool
);
1997 lpfc_disc_flush_list(phba
);
1998 psli
->ring
[(psli
->ip_ring
)].flag
&=
1999 ~LPFC_STOP_IOCB_EVENT
;
2000 psli
->ring
[(psli
->fcp_ring
)].flag
&=
2001 ~LPFC_STOP_IOCB_EVENT
;
2002 psli
->ring
[(psli
->next_ring
)].flag
&=
2003 ~LPFC_STOP_IOCB_EVENT
;
2004 phba
->hba_state
= LPFC_HBA_READY
;
2008 /* Next do PLOGIs - if any */
2009 num_sent
= lpfc_els_disc_plogi(phba
);
2014 if (phba
->fc_flag
& FC_RSCN_MODE
) {
2015 /* Check to see if more RSCNs came in while we
2016 * were processing this one.
2018 if ((phba
->fc_rscn_id_cnt
== 0) &&
2019 (!(phba
->fc_flag
& FC_RSCN_DISCOVERY
))) {
2020 spin_lock_irq(phba
->host
->host_lock
);
2021 phba
->fc_flag
&= ~FC_RSCN_MODE
;
2022 spin_unlock_irq(phba
->host
->host_lock
);
2025 lpfc_els_handle_rscn(phba
);
2032 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2033 * ring the match the sppecified nodelist.
2036 lpfc_free_tx(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
)
2038 struct lpfc_sli
*psli
;
2040 struct lpfc_iocbq
*iocb
, *next_iocb
;
2041 struct lpfc_sli_ring
*pring
;
2042 struct lpfc_dmabuf
*mp
;
2045 pring
= &psli
->ring
[LPFC_ELS_RING
];
2047 /* Error matching iocb on txq or txcmplq
2048 * First check the txq.
2050 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
2051 if (iocb
->context1
!= ndlp
) {
2055 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
2056 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
2058 list_del(&iocb
->list
);
2060 lpfc_els_free_iocb(phba
, iocb
);
2064 /* Next check the txcmplq */
2065 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
) {
2066 if (iocb
->context1
!= ndlp
) {
2070 if ((icmd
->ulpCommand
== CMD_ELS_REQUEST64_CR
) ||
2071 (icmd
->ulpCommand
== CMD_XMIT_ELS_RSP64_CX
)) {
2073 iocb
->iocb_cmpl
= NULL
;
2074 /* context2 = cmd, context2->next = rsp, context3 =
2076 if (iocb
->context2
) {
2077 /* Free the response IOCB before handling the
2080 mp
= (struct lpfc_dmabuf
*) (iocb
->context2
);
2081 mp
= list_get_first(&mp
->list
,
2085 /* Delay before releasing rsp buffer to
2086 * give UNREG mbox a chance to take
2090 &phba
->freebufList
);
2092 lpfc_mbuf_free(phba
,
2093 ((struct lpfc_dmabuf
*)
2094 iocb
->context2
)->virt
,
2095 ((struct lpfc_dmabuf
*)
2096 iocb
->context2
)->phys
);
2097 kfree(iocb
->context2
);
2100 if (iocb
->context3
) {
2101 lpfc_mbuf_free(phba
,
2102 ((struct lpfc_dmabuf
*)
2103 iocb
->context3
)->virt
,
2104 ((struct lpfc_dmabuf
*)
2105 iocb
->context3
)->phys
);
2106 kfree(iocb
->context3
);
2115 lpfc_disc_flush_list(struct lpfc_hba
* phba
)
2117 struct lpfc_nodelist
*ndlp
, *next_ndlp
;
2119 if (phba
->fc_plogi_cnt
) {
2120 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_plogi_list
,
2122 lpfc_free_tx(phba
, ndlp
);
2123 lpfc_nlp_remove(phba
, ndlp
);
2126 if (phba
->fc_adisc_cnt
) {
2127 list_for_each_entry_safe(ndlp
, next_ndlp
, &phba
->fc_adisc_list
,
2129 lpfc_free_tx(phba
, ndlp
);
2130 lpfc_nlp_remove(phba
, ndlp
);
2136 /*****************************************************************************/
2138 * NAME: lpfc_disc_timeout
2140 * FUNCTION: Fibre Channel driver discovery timeout routine.
2142 * EXECUTION ENVIRONMENT: interrupt only
2150 /*****************************************************************************/
2152 lpfc_disc_timeout(unsigned long ptr
)
2154 struct lpfc_hba
*phba
= (struct lpfc_hba
*)ptr
;
2155 unsigned long flags
= 0;
2157 if (unlikely(!phba
))
2160 spin_lock_irqsave(phba
->host
->host_lock
, flags
);
2161 if (!(phba
->work_hba_events
& WORKER_DISC_TMO
)) {
2162 phba
->work_hba_events
|= WORKER_DISC_TMO
;
2163 if (phba
->work_wait
)
2164 wake_up(phba
->work_wait
);
2166 spin_unlock_irqrestore(phba
->host
->host_lock
, flags
);
2171 lpfc_disc_timeout_handler(struct lpfc_hba
*phba
)
2173 struct lpfc_sli
*psli
;
2174 struct lpfc_nodelist
*ndlp
;
2175 LPFC_MBOXQ_t
*clearlambox
, *initlinkmbox
;
2176 int rc
, clrlaerr
= 0;
2178 if (unlikely(!phba
))
2181 if (!(phba
->fc_flag
& FC_DISC_TMO
))
2186 spin_lock_irq(phba
->host
->host_lock
);
2187 phba
->fc_flag
&= ~FC_DISC_TMO
;
2188 spin_unlock_irq(phba
->host
->host_lock
);
2190 switch (phba
->hba_state
) {
2192 case LPFC_LOCAL_CFG_LINK
:
2193 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2195 lpfc_printf_log(phba
,
2198 "%d:0221 FAN timeout\n",
2201 /* Forget about FAN, Start discovery by sending a FLOGI
2202 * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2205 phba
->hba_state
= LPFC_FLOGI
;
2206 lpfc_set_disctmo(phba
);
2207 lpfc_initial_flogi(phba
);
2211 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2212 /* Initial FLOGI timeout */
2213 lpfc_printf_log(phba
,
2216 "%d:0222 Initial FLOGI timeout\n",
2219 /* Assume no Fabric and go on with discovery.
2220 * Check for outstanding ELS FLOGI to abort.
2223 /* FLOGI failed, so just use loop map to make discovery list */
2224 lpfc_disc_list_loopmap(phba
);
2226 /* Start discovery */
2227 lpfc_disc_start(phba
);
2230 case LPFC_FABRIC_CFG_LINK
:
2231 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2233 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2234 "%d:0223 Timeout while waiting for NameServer "
2235 "login\n", phba
->brd_no
);
2237 /* Next look for NameServer ndlp */
2238 ndlp
= lpfc_findnode_did(phba
, NLP_SEARCH_ALL
, NameServer_DID
);
2240 lpfc_nlp_remove(phba
, ndlp
);
2241 /* Start discovery */
2242 lpfc_disc_start(phba
);
2246 /* Check for wait for NameServer Rsp timeout */
2247 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2248 "%d:0224 NameServer Query timeout "
2251 phba
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2253 ndlp
= lpfc_findnode_did(phba
, NLP_SEARCH_UNMAPPED
,
2256 if (phba
->fc_ns_retry
< LPFC_MAX_NS_RETRY
) {
2257 /* Try it one more time */
2258 rc
= lpfc_ns_cmd(phba
, ndlp
, SLI_CTNS_GID_FT
);
2262 phba
->fc_ns_retry
= 0;
2265 /* Nothing to authenticate, so CLEAR_LA right now */
2266 clearlambox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2269 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2270 "%d:0226 Device Discovery "
2271 "completion error\n",
2273 phba
->hba_state
= LPFC_HBA_ERROR
;
2277 phba
->hba_state
= LPFC_CLEAR_LA
;
2278 lpfc_clear_la(phba
, clearlambox
);
2279 clearlambox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
2280 rc
= lpfc_sli_issue_mbox(phba
, clearlambox
,
2281 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2282 if (rc
== MBX_NOT_FINISHED
) {
2283 mempool_free(clearlambox
, phba
->mbox_mem_pool
);
2288 /* Setup and issue mailbox INITIALIZE LINK command */
2289 initlinkmbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2290 if (!initlinkmbox
) {
2291 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2292 "%d:0226 Device Discovery "
2293 "completion error\n",
2295 phba
->hba_state
= LPFC_HBA_ERROR
;
2299 lpfc_linkdown(phba
);
2300 lpfc_init_link(phba
, initlinkmbox
, phba
->cfg_topology
,
2301 phba
->cfg_link_speed
);
2302 initlinkmbox
->mb
.un
.varInitLnk
.lipsr_AL_PA
= 0;
2303 rc
= lpfc_sli_issue_mbox(phba
, initlinkmbox
,
2304 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2305 if (rc
== MBX_NOT_FINISHED
)
2306 mempool_free(initlinkmbox
, phba
->mbox_mem_pool
);
2310 case LPFC_DISC_AUTH
:
2311 /* Node Authentication timeout */
2312 lpfc_printf_log(phba
,
2315 "%d:0227 Node Authentication timeout\n",
2317 lpfc_disc_flush_list(phba
);
2318 clearlambox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
2321 lpfc_printf_log(phba
, KERN_ERR
, LOG_DISCOVERY
,
2322 "%d:0226 Device Discovery "
2323 "completion error\n",
2325 phba
->hba_state
= LPFC_HBA_ERROR
;
2328 phba
->hba_state
= LPFC_CLEAR_LA
;
2329 lpfc_clear_la(phba
, clearlambox
);
2330 clearlambox
->mbox_cmpl
= lpfc_mbx_cmpl_clear_la
;
2331 rc
= lpfc_sli_issue_mbox(phba
, clearlambox
,
2332 (MBX_NOWAIT
| MBX_STOP_IOCB
));
2333 if (rc
== MBX_NOT_FINISHED
) {
2334 mempool_free(clearlambox
, phba
->mbox_mem_pool
);
2340 /* CLEAR LA timeout */
2341 lpfc_printf_log(phba
,
2344 "%d:0228 CLEAR LA timeout\n",
2349 case LPFC_HBA_READY
:
2350 if (phba
->fc_flag
& FC_RSCN_MODE
) {
2351 lpfc_printf_log(phba
,
2354 "%d:0231 RSCN timeout Data: x%x x%x\n",
2356 phba
->fc_ns_retry
, LPFC_MAX_NS_RETRY
);
2358 /* Cleanup any outstanding ELS commands */
2359 lpfc_els_flush_cmd(phba
);
2361 lpfc_els_flush_rscn(phba
);
2362 lpfc_disc_flush_list(phba
);
2368 lpfc_disc_flush_list(phba
);
2369 psli
->ring
[(psli
->ip_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2370 psli
->ring
[(psli
->fcp_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2371 psli
->ring
[(psli
->next_ring
)].flag
&= ~LPFC_STOP_IOCB_EVENT
;
2372 phba
->hba_state
= LPFC_HBA_READY
;
2379 lpfc_nodev_timeout(unsigned long ptr
)
2381 struct lpfc_hba
*phba
;
2382 struct lpfc_nodelist
*ndlp
;
2383 unsigned long iflag
;
2384 struct lpfc_work_evt
*evtp
;
2386 ndlp
= (struct lpfc_nodelist
*)ptr
;
2387 phba
= ndlp
->nlp_phba
;
2388 evtp
= &ndlp
->nodev_timeout_evt
;
2389 spin_lock_irqsave(phba
->host
->host_lock
, iflag
);
2391 if (!list_empty(&evtp
->evt_listp
)) {
2392 spin_unlock_irqrestore(phba
->host
->host_lock
, iflag
);
2395 evtp
->evt_arg1
= ndlp
;
2396 evtp
->evt
= LPFC_EVT_NODEV_TMO
;
2397 list_add_tail(&evtp
->evt_listp
, &phba
->work_list
);
2398 if (phba
->work_wait
)
2399 wake_up(phba
->work_wait
);
2401 spin_unlock_irqrestore(phba
->host
->host_lock
, iflag
);
2407 * This routine handles processing a NameServer REG_LOGIN mailbox
2408 * command upon completion. It is setup in the LPFC_MBOXQ
2409 * as the completion routine when the command is
2410 * handed off to the SLI layer.
2413 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba
* phba
, LPFC_MBOXQ_t
* pmb
)
2415 struct lpfc_sli
*psli
;
2417 struct lpfc_dmabuf
*mp
;
2418 struct lpfc_nodelist
*ndlp
;
2423 ndlp
= (struct lpfc_nodelist
*) pmb
->context2
;
2424 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2426 pmb
->context1
= NULL
;
2428 if (ndlp
->nlp_rpi
!= 0)
2429 lpfc_findnode_remove_rpi(phba
, ndlp
->nlp_rpi
);
2430 ndlp
->nlp_rpi
= mb
->un
.varWords
[0];
2431 lpfc_addnode_rpi(phba
, ndlp
, ndlp
->nlp_rpi
);
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 hash
2458 * table 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
*ret
;
2467 ret
= phba
->fc_nlplookup
[LPFC_RPI_HASH_FUNC(rpi
)];
2468 while ((ret
!= 0) && (ret
->nlp_rpi
!= rpi
)) {
2469 ret
= ret
->nlp_rpi_hash_next
;
2475 * This routine looks up the ndlp hash table for the
2476 * given RPI. If rpi found it return the node list
2477 * pointer else return 0 after deleting the entry
2480 struct lpfc_nodelist
*
2481 lpfc_findnode_remove_rpi(struct lpfc_hba
* phba
, uint16_t rpi
)
2483 struct lpfc_nodelist
*ret
, *temp
;;
2485 ret
= phba
->fc_nlplookup
[LPFC_RPI_HASH_FUNC(rpi
)];
2489 if (ret
->nlp_rpi
== rpi
) {
2490 phba
->fc_nlplookup
[LPFC_RPI_HASH_FUNC(rpi
)] =
2491 ret
->nlp_rpi_hash_next
;
2492 ret
->nlp_rpi_hash_next
= NULL
;
2496 while ((ret
->nlp_rpi_hash_next
!= 0) &&
2497 (ret
->nlp_rpi_hash_next
->nlp_rpi
!= rpi
)) {
2498 ret
= ret
->nlp_rpi_hash_next
;
2501 if (ret
->nlp_rpi_hash_next
!= 0) {
2502 temp
= ret
->nlp_rpi_hash_next
;
2503 ret
->nlp_rpi_hash_next
= temp
->nlp_rpi_hash_next
;
2504 temp
->nlp_rpi_hash_next
= NULL
;
2512 * This routine adds the node list entry to the
2516 lpfc_addnode_rpi(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
,
2522 index
= LPFC_RPI_HASH_FUNC(rpi
);
2523 ndlp
->nlp_rpi_hash_next
= phba
->fc_nlplookup
[index
];
2524 phba
->fc_nlplookup
[index
] = ndlp
;
2529 lpfc_nlp_init(struct lpfc_hba
* phba
, struct lpfc_nodelist
* ndlp
,
2532 memset(ndlp
, 0, sizeof (struct lpfc_nodelist
));
2533 INIT_LIST_HEAD(&ndlp
->nodev_timeout_evt
.evt_listp
);
2534 INIT_LIST_HEAD(&ndlp
->els_retry_evt
.evt_listp
);
2535 init_timer(&ndlp
->nlp_tmofunc
);
2536 ndlp
->nlp_tmofunc
.function
= lpfc_nodev_timeout
;
2537 ndlp
->nlp_tmofunc
.data
= (unsigned long)ndlp
;
2538 init_timer(&ndlp
->nlp_delayfunc
);
2539 ndlp
->nlp_delayfunc
.function
= lpfc_els_retry_delay
;
2540 ndlp
->nlp_delayfunc
.data
= (unsigned long)ndlp
;
2541 ndlp
->nlp_DID
= did
;
2542 ndlp
->nlp_phba
= phba
;
2543 ndlp
->nlp_sid
= NLP_NO_SID
;