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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hbadisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_hbadisc.c2537
1 files changed, 2537 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
new file mode 100644
index 000000000000..d546206038bf
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -0,0 +1,2537 @@
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. *
7 * www.emulex.com *
8 * *
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. *
13 * *
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 *******************************************************************/
20
21/*
22 * $Id: lpfc_hbadisc.c 1.266 2005/04/13 11:59:06EDT sf_support Exp $
23 */
24
25#include <linux/blkdev.h>
26#include <linux/pci.h>
27#include <linux/kthread.h>
28#include <linux/interrupt.h>
29
30#include <scsi/scsi_device.h>
31#include <scsi/scsi_host.h>
32#include <scsi/scsi_transport_fc.h>
33
34#include "lpfc_hw.h"
35#include "lpfc_disc.h"
36#include "lpfc_sli.h"
37#include "lpfc_scsi.h"
38#include "lpfc.h"
39#include "lpfc_logmsg.h"
40#include "lpfc_crtn.h"
41
42/* AlpaArray for assignment of scsid for scan-down and bind_method */
43static 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
57};
58
59static void lpfc_disc_timeout_handler(struct lpfc_hba *);
60
61static void
62lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
63{
64 if (!(ndlp->nlp_type & NLP_FABRIC)) {
65 /* Nodev timeout on NPort <nlp_DID> */
66 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
67 "%d:0203 Nodev timeout on NPort x%x "
68 "Data: x%x x%x x%x\n",
69 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
70 ndlp->nlp_state, ndlp->nlp_rpi);
71 }
72
73 spin_lock_irq(phba->host->host_lock);
74 if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
75 spin_unlock_irq(phba->host->host_lock);
76 return;
77 }
78
79 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
80
81 if (ndlp->nlp_sid != NLP_NO_SID) {
82 /* flush the target */
83 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
84 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
85 }
86 spin_unlock_irq(phba->host->host_lock);
87
88 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
89 return;
90}
91
92static void
93lpfc_work_list_done(struct lpfc_hba * phba)
94{
95 struct lpfc_work_evt *evtp = NULL;
96 struct lpfc_nodelist *ndlp;
97 int free_evt;
98
99 spin_lock_irq(phba->host->host_lock);
100 while(!list_empty(&phba->work_list)) {
101 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
102 evt_listp);
103 spin_unlock_irq(phba->host->host_lock);
104 free_evt = 1;
105 switch(evtp->evt) {
106 case LPFC_EVT_NODEV_TMO:
107 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
108 lpfc_process_nodev_timeout(phba, ndlp);
109 free_evt = 0;
110 break;
111 case LPFC_EVT_ELS_RETRY:
112 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
113 lpfc_els_retry_delay_handler(ndlp);
114 free_evt = 0;
115 break;
116 case LPFC_EVT_ONLINE:
117 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
118 complete((struct completion *)(evtp->evt_arg2));
119 break;
120 case LPFC_EVT_OFFLINE:
121 *(int *)(evtp->evt_arg1) = lpfc_offline(phba);
122 complete((struct completion *)(evtp->evt_arg2));
123 break;
124 }
125 if (free_evt)
126 kfree(evtp);
127 spin_lock_irq(phba->host->host_lock);
128 }
129 spin_unlock_irq(phba->host->host_lock);
130
131}
132
133static void
134lpfc_work_done(struct lpfc_hba * phba)
135{
136 struct lpfc_sli_ring *pring;
137 int i;
138 uint32_t ha_copy;
139 uint32_t control;
140 uint32_t work_hba_events;
141
142 spin_lock_irq(phba->host->host_lock);
143 ha_copy = phba->work_ha;
144 phba->work_ha = 0;
145 work_hba_events=phba->work_hba_events;
146 spin_unlock_irq(phba->host->host_lock);
147
148 if(ha_copy & HA_ERATT)
149 lpfc_handle_eratt(phba);
150
151 if(ha_copy & HA_MBATT)
152 lpfc_sli_handle_mb_event(phba);
153
154 if(ha_copy & HA_LATT)
155 lpfc_handle_latt(phba);
156
157 if (work_hba_events & WORKER_DISC_TMO)
158 lpfc_disc_timeout_handler(phba);
159
160 if (work_hba_events & WORKER_ELS_TMO)
161 lpfc_els_timeout_handler(phba);
162
163 if (work_hba_events & WORKER_MBOX_TMO)
164 lpfc_mbox_timeout_handler(phba);
165
166 if (work_hba_events & WORKER_FDMI_TMO)
167 lpfc_fdmi_tmo_handler(phba);
168
169 spin_lock_irq(phba->host->host_lock);
170 phba->work_hba_events &= ~work_hba_events;
171 spin_unlock_irq(phba->host->host_lock);
172
173 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
174 pring = &phba->sli.ring[i];
175 if ((ha_copy & HA_RXATT)
176 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
177 if (pring->flag & LPFC_STOP_IOCB_MASK) {
178 pring->flag |= LPFC_DEFERRED_RING_EVENT;
179 } else {
180 lpfc_sli_handle_slow_ring_event(phba, pring,
181 (ha_copy &
182 HA_RXMASK));
183 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
184 }
185 /*
186 * Turn on Ring interrupts
187 */
188 spin_lock_irq(phba->host->host_lock);
189 control = readl(phba->HCregaddr);
190 control |= (HC_R0INT_ENA << i);
191 writel(control, phba->HCregaddr);
192 readl(phba->HCregaddr); /* flush */
193 spin_unlock_irq(phba->host->host_lock);
194 }
195 }
196
197 lpfc_work_list_done (phba);
198
199}
200
201static int
202check_work_wait_done(struct lpfc_hba *phba) {
203
204 spin_lock_irq(phba->host->host_lock);
205 if (phba->work_ha ||
206 phba->work_hba_events ||
207 (!list_empty(&phba->work_list)) ||
208 kthread_should_stop()) {
209 spin_unlock_irq(phba->host->host_lock);
210 return 1;
211 } else {
212 spin_unlock_irq(phba->host->host_lock);
213 return 0;
214 }
215}
216
217int
218lpfc_do_work(void *p)
219{
220 struct lpfc_hba *phba = p;
221 int rc;
222 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
223
224 set_user_nice(current, -20);
225 phba->work_wait = &work_waitq;
226
227 while (1) {
228
229 rc = wait_event_interruptible(work_waitq,
230 check_work_wait_done(phba));
231 BUG_ON(rc);
232
233 if (kthread_should_stop())
234 break;
235
236 lpfc_work_done(phba);
237
238 }
239 phba->work_wait = NULL;
240 return 0;
241}
242
243/*
244 * This is only called to handle FC worker events. Since this a rare
245 * occurance, we allocate a struct lpfc_work_evt structure here instead of
246 * embedding it in the IOCB.
247 */
248int
249lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
250 uint32_t evt)
251{
252 struct lpfc_work_evt *evtp;
253
254 /*
255 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
256 * be queued to worker thread for processing
257 */
258 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
259 if (!evtp)
260 return 0;
261
262 evtp->evt_arg1 = arg1;
263 evtp->evt_arg2 = arg2;
264 evtp->evt = evt;
265
266 list_add_tail(&evtp->evt_listp, &phba->work_list);
267 spin_lock_irq(phba->host->host_lock);
268 if (phba->work_wait)
269 wake_up(phba->work_wait);
270 spin_unlock_irq(phba->host->host_lock);
271
272 return 1;
273}
274
275int
276lpfc_linkdown(struct lpfc_hba * phba)
277{
278 struct lpfc_sli *psli;
279 struct lpfc_nodelist *ndlp, *next_ndlp;
280 struct list_head *listp;
281 struct list_head *node_list[7];
282 LPFC_MBOXQ_t *mb;
283 int rc, i;
284
285 psli = &phba->sli;
286
287 spin_lock_irq(phba->host->host_lock);
288 phba->hba_state = LPFC_LINK_DOWN;
289 spin_unlock_irq(phba->host->host_lock);
290
291 /* Clean up any firmware default rpi's */
292 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
293 lpfc_unreg_did(phba, 0xffffffff, mb);
294 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
295 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
296 == MBX_NOT_FINISHED) {
297 mempool_free( mb, phba->mbox_mem_pool);
298 }
299 }
300
301 /* Cleanup any outstanding RSCN activity */
302 lpfc_els_flush_rscn(phba);
303
304 /* Cleanup any outstanding ELS commands */
305 lpfc_els_flush_cmd(phba);
306
307 /* Issue a LINK DOWN event to all nodes */
308 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
309 node_list[1] = &phba->fc_nlpmap_list;
310 node_list[2] = &phba->fc_nlpunmap_list;
311 node_list[3] = &phba->fc_prli_list;
312 node_list[4] = &phba->fc_reglogin_list;
313 node_list[5] = &phba->fc_adisc_list;
314 node_list[6] = &phba->fc_plogi_list;
315 for (i = 0; i < 7; i++) {
316 listp = node_list[i];
317 if (list_empty(listp))
318 continue;
319
320 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
321 /* Fabric nodes are not handled thru state machine for
322 link down */
323 if (ndlp->nlp_type & NLP_FABRIC) {
324 /* Remove ALL Fabric nodes except Fabric_DID */
325 if (ndlp->nlp_DID != Fabric_DID) {
326 /* Take it off current list and free */
327 lpfc_nlp_list(phba, ndlp,
328 NLP_NO_LIST);
329 }
330 }
331 else {
332
333 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
334 NLP_EVT_DEVICE_RECOVERY);
335
336 /* Check config parameter use-adisc or FCP-2 */
337 if ((rc != NLP_STE_FREED_NODE) &&
338 (phba->cfg_use_adisc == 0) &&
339 !(ndlp->nlp_fcp_info &
340 NLP_FCP_2_DEVICE)) {
341 /* We know we will have to relogin, so
342 * unreglogin the rpi right now to fail
343 * any outstanding I/Os quickly.
344 */
345 lpfc_unreg_rpi(phba, ndlp);
346 }
347 }
348 }
349 }
350
351 /* free any ndlp's on unused list */
352 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
353 nlp_listp) {
354 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
355 }
356
357 /* Setup myDID for link up if we are in pt2pt mode */
358 if (phba->fc_flag & FC_PT2PT) {
359 phba->fc_myDID = 0;
360 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
361 lpfc_config_link(phba, mb);
362 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
363 if (lpfc_sli_issue_mbox
364 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
365 == MBX_NOT_FINISHED) {
366 mempool_free( mb, phba->mbox_mem_pool);
367 }
368 }
369 spin_lock_irq(phba->host->host_lock);
370 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
371 spin_unlock_irq(phba->host->host_lock);
372 }
373 spin_lock_irq(phba->host->host_lock);
374 phba->fc_flag &= ~FC_LBIT;
375 spin_unlock_irq(phba->host->host_lock);
376
377 /* Turn off discovery timer if its running */
378 lpfc_can_disctmo(phba);
379
380 /* Must process IOCBs on all rings to handle ABORTed I/Os */
381 return (0);
382}
383
384static int
385lpfc_linkup(struct lpfc_hba * phba)
386{
387 struct lpfc_nodelist *ndlp, *next_ndlp;
388
389 spin_lock_irq(phba->host->host_lock);
390 phba->hba_state = LPFC_LINK_UP;
391 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
392 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
393 phba->fc_flag |= FC_NDISC_ACTIVE;
394 phba->fc_ns_retry = 0;
395 spin_unlock_irq(phba->host->host_lock);
396
397
398 /*
399 * Clean up old Fabric NLP_FABRIC logins.
400 */
401 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
402 nlp_listp) {
403 if (ndlp->nlp_DID == Fabric_DID) {
404 /* Take it off current list and free */
405 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
406 }
407 }
408
409 /* free any ndlp's on unused list */
410 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
411 nlp_listp) {
412 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
413 }
414
415 return 0;
416}
417
418/*
419 * This routine handles processing a CLEAR_LA mailbox
420 * command upon completion. It is setup in the LPFC_MBOXQ
421 * as the completion routine when the command is
422 * handed off to the SLI layer.
423 */
424void
425lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
426{
427 struct lpfc_sli *psli;
428 MAILBOX_t *mb;
429 uint32_t control;
430
431 psli = &phba->sli;
432 mb = &pmb->mb;
433 /* Since we don't do discovery right now, turn these off here */
434 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
435 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
436 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
437
438 /* Check for error */
439 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
440 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
441 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
442 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
443 "state x%x\n",
444 phba->brd_no, mb->mbxStatus, phba->hba_state);
445
446 phba->hba_state = LPFC_HBA_ERROR;
447 goto out;
448 }
449
450 if (phba->fc_flag & FC_ABORT_DISCOVERY)
451 goto out;
452
453 phba->num_disc_nodes = 0;
454 /* go thru NPR list and issue ELS PLOGIs */
455 if (phba->fc_npr_cnt) {
456 lpfc_els_disc_plogi(phba);
457 }
458
459 if(!phba->num_disc_nodes) {
460 spin_lock_irq(phba->host->host_lock);
461 phba->fc_flag &= ~FC_NDISC_ACTIVE;
462 spin_unlock_irq(phba->host->host_lock);
463 }
464
465 phba->hba_state = LPFC_HBA_READY;
466
467out:
468 /* Device Discovery completes */
469 lpfc_printf_log(phba,
470 KERN_INFO,
471 LOG_DISCOVERY,
472 "%d:0225 Device Discovery completes\n",
473 phba->brd_no);
474
475 mempool_free( pmb, phba->mbox_mem_pool);
476
477 spin_lock_irq(phba->host->host_lock);
478 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
479 if (phba->fc_flag & FC_ESTABLISH_LINK) {
480 phba->fc_flag &= ~FC_ESTABLISH_LINK;
481 }
482 spin_unlock_irq(phba->host->host_lock);
483
484 del_timer_sync(&phba->fc_estabtmo);
485
486 lpfc_can_disctmo(phba);
487
488 /* turn on Link Attention interrupts */
489 spin_lock_irq(phba->host->host_lock);
490 psli->sli_flag |= LPFC_PROCESS_LA;
491 control = readl(phba->HCregaddr);
492 control |= HC_LAINT_ENA;
493 writel(control, phba->HCregaddr);
494 readl(phba->HCregaddr); /* flush */
495 spin_unlock_irq(phba->host->host_lock);
496
497 return;
498}
499
500static void
501lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
502{
503 struct lpfc_sli *psli;
504 MAILBOX_t *mb;
505
506 psli = &phba->sli;
507 mb = &pmb->mb;
508 /* Check for error */
509 if (mb->mbxStatus) {
510 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
511 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
512 "%d:0306 CONFIG_LINK mbxStatus error x%x "
513 "HBA state x%x\n",
514 phba->brd_no, mb->mbxStatus, phba->hba_state);
515
516 lpfc_linkdown(phba);
517 phba->hba_state = LPFC_HBA_ERROR;
518 goto out;
519 }
520
521 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
522 if (phba->fc_topology == TOPOLOGY_LOOP) {
523 /* If we are public loop and L bit was set */
524 if ((phba->fc_flag & FC_PUBLIC_LOOP) &&
525 !(phba->fc_flag & FC_LBIT)) {
526 /* Need to wait for FAN - use discovery timer
527 * for timeout. hba_state is identically
528 * LPFC_LOCAL_CFG_LINK while waiting for FAN
529 */
530 lpfc_set_disctmo(phba);
531 mempool_free( pmb, phba->mbox_mem_pool);
532 return;
533 }
534 }
535
536 /* Start discovery by sending a FLOGI hba_state is identically
537 * LPFC_FLOGI while waiting for FLOGI cmpl
538 */
539 phba->hba_state = LPFC_FLOGI;
540 lpfc_set_disctmo(phba);
541 lpfc_initial_flogi(phba);
542 mempool_free( pmb, phba->mbox_mem_pool);
543 return;
544 }
545 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
546 mempool_free( pmb, phba->mbox_mem_pool);
547 return;
548 }
549
550out:
551 /* CONFIG_LINK bad hba state <hba_state> */
552 lpfc_printf_log(phba,
553 KERN_ERR,
554 LOG_DISCOVERY,
555 "%d:0200 CONFIG_LINK bad hba state x%x\n",
556 phba->brd_no, phba->hba_state);
557
558 if (phba->hba_state != LPFC_CLEAR_LA) {
559 lpfc_clear_la(phba, pmb);
560 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
561 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
562 == MBX_NOT_FINISHED) {
563 mempool_free( pmb, phba->mbox_mem_pool);
564 lpfc_disc_flush_list(phba);
565 psli->ring[(psli->ip_ring)].flag &=
566 ~LPFC_STOP_IOCB_EVENT;
567 psli->ring[(psli->fcp_ring)].flag &=
568 ~LPFC_STOP_IOCB_EVENT;
569 psli->ring[(psli->next_ring)].flag &=
570 ~LPFC_STOP_IOCB_EVENT;
571 phba->hba_state = LPFC_HBA_READY;
572 }
573 } else {
574 mempool_free( pmb, phba->mbox_mem_pool);
575 }
576 return;
577}
578
579static void
580lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
581{
582 struct lpfc_sli *psli = &phba->sli;
583 MAILBOX_t *mb = &pmb->mb;
584 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
585
586
587 /* Check for error */
588 if (mb->mbxStatus) {
589 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
590 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
591 "%d:0319 READ_SPARAM mbxStatus error x%x "
592 "hba state x%x>\n",
593 phba->brd_no, mb->mbxStatus, phba->hba_state);
594
595 lpfc_linkdown(phba);
596 phba->hba_state = LPFC_HBA_ERROR;
597 goto out;
598 }
599
600 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
601 sizeof (struct serv_parm));
602 memcpy((uint8_t *) & phba->fc_nodename,
603 (uint8_t *) & phba->fc_sparam.nodeName,
604 sizeof (struct lpfc_name));
605 memcpy((uint8_t *) & phba->fc_portname,
606 (uint8_t *) & phba->fc_sparam.portName,
607 sizeof (struct lpfc_name));
608 lpfc_mbuf_free(phba, mp->virt, mp->phys);
609 kfree(mp);
610 mempool_free( pmb, phba->mbox_mem_pool);
611 return;
612
613out:
614 pmb->context1 = NULL;
615 lpfc_mbuf_free(phba, mp->virt, mp->phys);
616 kfree(mp);
617 if (phba->hba_state != LPFC_CLEAR_LA) {
618 lpfc_clear_la(phba, pmb);
619 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
620 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
621 == MBX_NOT_FINISHED) {
622 mempool_free( pmb, phba->mbox_mem_pool);
623 lpfc_disc_flush_list(phba);
624 psli->ring[(psli->ip_ring)].flag &=
625 ~LPFC_STOP_IOCB_EVENT;
626 psli->ring[(psli->fcp_ring)].flag &=
627 ~LPFC_STOP_IOCB_EVENT;
628 psli->ring[(psli->next_ring)].flag &=
629 ~LPFC_STOP_IOCB_EVENT;
630 phba->hba_state = LPFC_HBA_READY;
631 }
632 } else {
633 mempool_free( pmb, phba->mbox_mem_pool);
634 }
635 return;
636}
637
638static void
639lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
640{
641 int i;
642 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
643 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
644 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
645
646 spin_lock_irq(phba->host->host_lock);
647 switch(la->UlnkSpeed) {
648 case LA_1GHZ_LINK:
649 phba->fc_linkspeed = LA_1GHZ_LINK;
650 break;
651 case LA_2GHZ_LINK:
652 phba->fc_linkspeed = LA_2GHZ_LINK;
653 break;
654 case LA_4GHZ_LINK:
655 phba->fc_linkspeed = LA_4GHZ_LINK;
656 break;
657 default:
658 phba->fc_linkspeed = LA_UNKNW_LINK;
659 break;
660 }
661
662 phba->fc_topology = la->topology;
663
664 if (phba->fc_topology == TOPOLOGY_LOOP) {
665 /* Get Loop Map information */
666
667 if (la->il)
668 phba->fc_flag |= FC_LBIT;
669
670 phba->fc_myDID = la->granted_AL_PA;
671 i = la->un.lilpBde64.tus.f.bdeSize;
672
673 if (i == 0) {
674 phba->alpa_map[0] = 0;
675 } else {
676 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
677 int numalpa, j, k;
678 union {
679 uint8_t pamap[16];
680 struct {
681 uint32_t wd1;
682 uint32_t wd2;
683 uint32_t wd3;
684 uint32_t wd4;
685 } pa;
686 } un;
687 numalpa = phba->alpa_map[0];
688 j = 0;
689 while (j < numalpa) {
690 memset(un.pamap, 0, 16);
691 for (k = 1; j < numalpa; k++) {
692 un.pamap[k - 1] =
693 phba->alpa_map[j + 1];
694 j++;
695 if (k == 16)
696 break;
697 }
698 /* Link Up Event ALPA map */
699 lpfc_printf_log(phba,
700 KERN_WARNING,
701 LOG_LINK_EVENT,
702 "%d:1304 Link Up Event "
703 "ALPA map Data: x%x "
704 "x%x x%x x%x\n",
705 phba->brd_no,
706 un.pa.wd1, un.pa.wd2,
707 un.pa.wd3, un.pa.wd4);
708 }
709 }
710 }
711 } else {
712 phba->fc_myDID = phba->fc_pref_DID;
713 phba->fc_flag |= FC_LBIT;
714 }
715 spin_unlock_irq(phba->host->host_lock);
716
717 lpfc_linkup(phba);
718 if (sparam_mbox) {
719 lpfc_read_sparam(phba, sparam_mbox);
720 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
721 lpfc_sli_issue_mbox(phba, sparam_mbox,
722 (MBX_NOWAIT | MBX_STOP_IOCB));
723 }
724
725 if (cfglink_mbox) {
726 phba->hba_state = LPFC_LOCAL_CFG_LINK;
727 lpfc_config_link(phba, cfglink_mbox);
728 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link;
729 lpfc_sli_issue_mbox(phba, cfglink_mbox,
730 (MBX_NOWAIT | MBX_STOP_IOCB));
731 }
732}
733
734static void
735lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
736 uint32_t control;
737 struct lpfc_sli *psli = &phba->sli;
738
739 lpfc_linkdown(phba);
740
741 /* turn on Link Attention interrupts - no CLEAR_LA needed */
742 spin_lock_irq(phba->host->host_lock);
743 psli->sli_flag |= LPFC_PROCESS_LA;
744 control = readl(phba->HCregaddr);
745 control |= HC_LAINT_ENA;
746 writel(control, phba->HCregaddr);
747 readl(phba->HCregaddr); /* flush */
748 spin_unlock_irq(phba->host->host_lock);
749}
750
751/*
752 * This routine handles processing a READ_LA mailbox
753 * command upon completion. It is setup in the LPFC_MBOXQ
754 * as the completion routine when the command is
755 * handed off to the SLI layer.
756 */
757void
758lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
759{
760 READ_LA_VAR *la;
761 MAILBOX_t *mb = &pmb->mb;
762 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
763
764 /* Check for error */
765 if (mb->mbxStatus) {
766 lpfc_printf_log(phba,
767 KERN_INFO,
768 LOG_LINK_EVENT,
769 "%d:1307 READ_LA mbox error x%x state x%x\n",
770 phba->brd_no,
771 mb->mbxStatus, phba->hba_state);
772 lpfc_mbx_issue_link_down(phba);
773 phba->hba_state = LPFC_HBA_ERROR;
774 goto lpfc_mbx_cmpl_read_la_free_mbuf;
775 }
776
777 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
778
779 memcpy(&phba->alpa_map[0], mp->virt, 128);
780
781 if (((phba->fc_eventTag + 1) < la->eventTag) ||
782 (phba->fc_eventTag == la->eventTag)) {
783 phba->fc_stat.LinkMultiEvent++;
784 if (la->attType == AT_LINK_UP) {
785 if (phba->fc_eventTag != 0)
786 lpfc_linkdown(phba);
787 }
788 }
789
790 phba->fc_eventTag = la->eventTag;
791
792 if (la->attType == AT_LINK_UP) {
793 phba->fc_stat.LinkUp++;
794 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
795 "%d:1303 Link Up Event x%x received "
796 "Data: x%x x%x x%x x%x\n",
797 phba->brd_no, la->eventTag, phba->fc_eventTag,
798 la->granted_AL_PA, la->UlnkSpeed,
799 phba->alpa_map[0]);
800 lpfc_mbx_process_link_up(phba, la);
801 } else {
802 phba->fc_stat.LinkDown++;
803 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
804 "%d:1305 Link Down Event x%x received "
805 "Data: x%x x%x x%x\n",
806 phba->brd_no, la->eventTag, phba->fc_eventTag,
807 phba->hba_state, phba->fc_flag);
808 lpfc_mbx_issue_link_down(phba);
809 }
810
811lpfc_mbx_cmpl_read_la_free_mbuf:
812 lpfc_mbuf_free(phba, mp->virt, mp->phys);
813 kfree(mp);
814 mempool_free(pmb, phba->mbox_mem_pool);
815 return;
816}
817
818/*
819 * This routine handles processing a REG_LOGIN mailbox
820 * command upon completion. It is setup in the LPFC_MBOXQ
821 * as the completion routine when the command is
822 * handed off to the SLI layer.
823 */
824void
825lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
826{
827 struct lpfc_sli *psli;
828 MAILBOX_t *mb;
829 struct lpfc_dmabuf *mp;
830 struct lpfc_nodelist *ndlp;
831
832 psli = &phba->sli;
833 mb = &pmb->mb;
834
835 ndlp = (struct lpfc_nodelist *) pmb->context2;
836 mp = (struct lpfc_dmabuf *) (pmb->context1);
837
838 pmb->context1 = NULL;
839
840 /* Good status, call state machine */
841 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
842 lpfc_mbuf_free(phba, mp->virt, mp->phys);
843 kfree(mp);
844 mempool_free( pmb, phba->mbox_mem_pool);
845
846 return;
847}
848
849/*
850 * This routine handles processing a Fabric REG_LOGIN mailbox
851 * command upon completion. It is setup in the LPFC_MBOXQ
852 * as the completion routine when the command is
853 * handed off to the SLI layer.
854 */
855void
856lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
857{
858 struct lpfc_sli *psli;
859 MAILBOX_t *mb;
860 struct lpfc_dmabuf *mp;
861 struct lpfc_nodelist *ndlp;
862 struct lpfc_nodelist *ndlp_fdmi;
863
864
865 psli = &phba->sli;
866 mb = &pmb->mb;
867
868 ndlp = (struct lpfc_nodelist *) pmb->context2;
869 mp = (struct lpfc_dmabuf *) (pmb->context1);
870
871 if (mb->mbxStatus) {
872 lpfc_mbuf_free(phba, mp->virt, mp->phys);
873 kfree(mp);
874 mempool_free( pmb, phba->mbox_mem_pool);
875 mempool_free( ndlp, phba->nlp_mem_pool);
876
877 /* FLOGI failed, so just use loop map to make discovery list */
878 lpfc_disc_list_loopmap(phba);
879
880 /* Start discovery */
881 lpfc_disc_start(phba);
882 return;
883 }
884
885 pmb->context1 = NULL;
886
887 if (ndlp->nlp_rpi != 0)
888 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
889 ndlp->nlp_rpi = mb->un.varWords[0];
890 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
891 ndlp->nlp_type |= NLP_FABRIC;
892 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
893 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
894
895 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
896 /* This NPort has been assigned an NPort_ID by the fabric as a
897 * result of the completed fabric login. Issue a State Change
898 * Registration (SCR) ELS request to the fabric controller
899 * (SCR_DID) so that this NPort gets RSCN events from the
900 * fabric.
901 */
902 lpfc_issue_els_scr(phba, SCR_DID, 0);
903
904 /* Allocate a new node instance. If the pool is empty, just
905 * start the discovery process and skip the Nameserver login
906 * process. This is attempted again later on. Otherwise, issue
907 * a Port Login (PLOGI) to the NameServer
908 */
909 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
910 == 0) {
911 lpfc_disc_start(phba);
912 } else {
913 lpfc_nlp_init(phba, ndlp, NameServer_DID);
914 ndlp->nlp_type |= NLP_FABRIC;
915 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
916 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
917 lpfc_issue_els_plogi(phba, ndlp, 0);
918 if (phba->cfg_fdmi_on) {
919 if ((ndlp_fdmi = mempool_alloc(
920 phba->nlp_mem_pool,
921 GFP_KERNEL))) {
922 lpfc_nlp_init(phba, ndlp_fdmi,
923 FDMI_DID);
924 ndlp_fdmi->nlp_type |= NLP_FABRIC;
925 ndlp_fdmi->nlp_state =
926 NLP_STE_PLOGI_ISSUE;
927 lpfc_issue_els_plogi(phba, ndlp_fdmi,
928 0);
929 }
930 }
931 }
932 }
933
934 lpfc_mbuf_free(phba, mp->virt, mp->phys);
935 kfree(mp);
936 mempool_free( pmb, phba->mbox_mem_pool);
937
938 return;
939}
940
941/*
942 * This routine handles processing a NameServer REG_LOGIN mailbox
943 * command upon completion. It is setup in the LPFC_MBOXQ
944 * as the completion routine when the command is
945 * handed off to the SLI layer.
946 */
947void
948lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
949{
950 struct lpfc_sli *psli;
951 MAILBOX_t *mb;
952 struct lpfc_dmabuf *mp;
953 struct lpfc_nodelist *ndlp;
954
955 psli = &phba->sli;
956 mb = &pmb->mb;
957
958 ndlp = (struct lpfc_nodelist *) pmb->context2;
959 mp = (struct lpfc_dmabuf *) (pmb->context1);
960
961 if (mb->mbxStatus) {
962 lpfc_mbuf_free(phba, mp->virt, mp->phys);
963 kfree(mp);
964 mempool_free( pmb, phba->mbox_mem_pool);
965 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
966
967 /* RegLogin failed, so just use loop map to make discovery
968 list */
969 lpfc_disc_list_loopmap(phba);
970
971 /* Start discovery */
972 lpfc_disc_start(phba);
973 return;
974 }
975
976 pmb->context1 = NULL;
977
978 if (ndlp->nlp_rpi != 0)
979 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
980 ndlp->nlp_rpi = mb->un.varWords[0];
981 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
982 ndlp->nlp_type |= NLP_FABRIC;
983 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
984 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
985
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);
991 }
992
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);
998 }
999
1000 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1001 kfree(mp);
1002 mempool_free( pmb, phba->mbox_mem_pool);
1003
1004 return;
1005}
1006
1007static void
1008lpfc_register_remote_port(struct lpfc_hba * phba,
1009 struct lpfc_nodelist * ndlp)
1010{
1011 struct fc_rport *rport;
1012 struct lpfc_rport_data *rdata;
1013 struct fc_rport_identifiers rport_ids;
1014 uint64_t wwn;
1015
1016 /* Remote port has reappeared. Re-register w/ FC transport */
1017 memcpy(&wwn, &ndlp->nlp_nodename, sizeof(uint64_t));
1018 rport_ids.node_name = be64_to_cpu(wwn);
1019 memcpy(&wwn, &ndlp->nlp_portname, sizeof(uint64_t));
1020 rport_ids.port_name = be64_to_cpu(wwn);
1021 rport_ids.port_id = ndlp->nlp_DID;
1022 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1023 if (ndlp->nlp_type & NLP_FCP_TARGET)
1024 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1025 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1026 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1027
1028 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1029 if (!rport) {
1030 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1031 "Warning: fc_remote_port_add failed\n");
1032 return;
1033 }
1034
1035 /* initialize static port data */
1036 rport->maxframe_size = ndlp->nlp_maxframe;
1037 rport->supported_classes = ndlp->nlp_class_sup;
1038 if ((rport->scsi_target_id != -1) &&
1039 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1040 ndlp->nlp_sid = rport->scsi_target_id;
1041 }
1042 rdata = rport->dd_data;
1043 rdata->pnode = ndlp;
1044
1045 return;
1046}
1047
1048int
1049lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1050{
1051 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1052 struct lpfc_sli *psli;
1053
1054 psli = &phba->sli;
1055 /* Sanity check to ensure we are not moving to / from the same list */
1056 if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1057 if (list != NLP_NO_LIST)
1058 return(0);
1059 }
1060
1061 switch(nlp->nlp_flag & NLP_LIST_MASK) {
1062 case NLP_NO_LIST: /* Not on any list */
1063 break;
1064 case NLP_UNUSED_LIST:
1065 phba->fc_unused_cnt--;
1066 list_del(&nlp->nlp_listp);
1067 break;
1068 case NLP_PLOGI_LIST:
1069 phba->fc_plogi_cnt--;
1070 list_del(&nlp->nlp_listp);
1071 break;
1072 case NLP_ADISC_LIST:
1073 phba->fc_adisc_cnt--;
1074 list_del(&nlp->nlp_listp);
1075 break;
1076 case NLP_REGLOGIN_LIST:
1077 phba->fc_reglogin_cnt--;
1078 list_del(&nlp->nlp_listp);
1079 break;
1080 case NLP_PRLI_LIST:
1081 phba->fc_prli_cnt--;
1082 list_del(&nlp->nlp_listp);
1083 break;
1084 case NLP_UNMAPPED_LIST:
1085 phba->fc_unmap_cnt--;
1086 list_del(&nlp->nlp_listp);
1087 spin_lock_irq(phba->host->host_lock);
1088 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1089 nlp->nlp_type &= ~NLP_FC_NODE;
1090 spin_unlock_irq(phba->host->host_lock);
1091 phba->nport_event_cnt++;
1092 if (nlp->rport)
1093 rport_del = unmapped;
1094 break;
1095 case NLP_MAPPED_LIST:
1096 phba->fc_map_cnt--;
1097 list_del(&nlp->nlp_listp);
1098 phba->nport_event_cnt++;
1099 if (nlp->rport)
1100 rport_del = mapped;
1101 break;
1102 case NLP_NPR_LIST:
1103 phba->fc_npr_cnt--;
1104 list_del(&nlp->nlp_listp);
1105 /* Stop delay tmo if taking node off NPR list */
1106 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1107 (list != NLP_NPR_LIST)) {
1108 spin_lock_irq(phba->host->host_lock);
1109 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1110 spin_unlock_irq(phba->host->host_lock);
1111 del_timer_sync(&nlp->nlp_delayfunc);
1112 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1113 list_del_init(&nlp->els_retry_evt.evt_listp);
1114 }
1115 break;
1116 }
1117
1118 spin_lock_irq(phba->host->host_lock);
1119 nlp->nlp_flag &= ~NLP_LIST_MASK;
1120 spin_unlock_irq(phba->host->host_lock);
1121
1122 /* Add NPort <did> to <num> list */
1123 lpfc_printf_log(phba,
1124 KERN_INFO,
1125 LOG_NODE,
1126 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1127 phba->brd_no,
1128 nlp->nlp_DID, list, nlp->nlp_flag);
1129
1130 switch(list) {
1131 case NLP_NO_LIST: /* No list, just remove it */
1132 lpfc_nlp_remove(phba, nlp);
1133 break;
1134 case NLP_UNUSED_LIST:
1135 spin_lock_irq(phba->host->host_lock);
1136 nlp->nlp_flag |= list;
1137 spin_unlock_irq(phba->host->host_lock);
1138 /* Put it at the end of the unused list */
1139 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1140 phba->fc_unused_cnt++;
1141 break;
1142 case NLP_PLOGI_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 plogi list */
1147 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1148 phba->fc_plogi_cnt++;
1149 break;
1150 case NLP_ADISC_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 adisc list */
1155 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1156 phba->fc_adisc_cnt++;
1157 break;
1158 case NLP_REGLOGIN_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 reglogin list */
1163 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1164 phba->fc_reglogin_cnt++;
1165 break;
1166 case NLP_PRLI_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 prli list */
1171 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1172 phba->fc_prli_cnt++;
1173 break;
1174 case NLP_UNMAPPED_LIST:
1175 rport_add = unmapped;
1176 /* ensure all vestiges of "mapped" significance are gone */
1177 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
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 unmap list */
1182 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1183 phba->fc_unmap_cnt++;
1184 phba->nport_event_cnt++;
1185 /* stop nodev tmo if running */
1186 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1187 spin_lock_irq(phba->host->host_lock);
1188 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1189 spin_unlock_irq(phba->host->host_lock);
1190 del_timer_sync(&nlp->nlp_tmofunc);
1191 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1192 list_del_init(&nlp->nodev_timeout_evt.
1193 evt_listp);
1194
1195 }
1196 nlp->nlp_type |= NLP_FC_NODE;
1197 break;
1198 case NLP_MAPPED_LIST:
1199 rport_add = mapped;
1200 spin_lock_irq(phba->host->host_lock);
1201 nlp->nlp_flag |= list;
1202 spin_unlock_irq(phba->host->host_lock);
1203 /* Put it at the end of the map list */
1204 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1205 phba->fc_map_cnt++;
1206 phba->nport_event_cnt++;
1207 /* stop nodev tmo if running */
1208 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1209 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1210 del_timer_sync(&nlp->nlp_tmofunc);
1211 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1212 list_del_init(&nlp->nodev_timeout_evt.
1213 evt_listp);
1214
1215 }
1216 break;
1217 case NLP_NPR_LIST:
1218 spin_lock_irq(phba->host->host_lock);
1219 nlp->nlp_flag |= list;
1220 spin_unlock_irq(phba->host->host_lock);
1221 /* Put it at the end of the npr list */
1222 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1223 phba->fc_npr_cnt++;
1224
1225 /*
1226 * Sanity check for Fabric entity.
1227 * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1228 */
1229 if (nlp->nlp_type & NLP_FABRIC) {
1230 mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1231 }
1232 else {
1233 mod_timer(&nlp->nlp_tmofunc,
1234 jiffies + HZ * phba->cfg_nodev_tmo);
1235 }
1236 spin_lock_irq(phba->host->host_lock);
1237 nlp->nlp_flag |= NLP_NODEV_TMO;
1238 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1239 spin_unlock_irq(phba->host->host_lock);
1240 break;
1241 case NLP_JUST_DQ:
1242 break;
1243 }
1244
1245 /*
1246 * We make all the calls into the transport after we have
1247 * moved the node between lists. This so that we don't
1248 * release the lock while in-between lists.
1249 */
1250
1251 /* Don't upcall midlayer if we're unloading */
1252 if (!(phba->fc_flag & FC_UNLOADING)) {
1253 /*
1254 * We revalidate the rport pointer as the "add" function
1255 * may have removed the remote port.
1256 */
1257 if ((rport_del != none) && nlp->rport)
1258 fc_remote_port_block(nlp->rport);
1259
1260 if (rport_add != none) {
1261 /*
1262 * Tell the fc transport about the port, if we haven't
1263 * already. If we have, and it's a scsi entity, be
1264 * sure to unblock any attached scsi devices
1265 */
1266 if (!nlp->rport)
1267 lpfc_register_remote_port(phba, nlp);
1268 else
1269 fc_remote_port_unblock(nlp->rport);
1270
1271 /*
1272 * if we added to Mapped list, but the remote port
1273 * registration failed or assigned a target id outside
1274 * our presentable range - move the node to the
1275 * Unmapped List
1276 */
1277 if ((rport_add == mapped) &&
1278 ((!nlp->rport) ||
1279 (nlp->rport->scsi_target_id == -1) ||
1280 (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1281 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1282 spin_lock_irq(phba->host->host_lock);
1283 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1284 spin_unlock_irq(phba->host->host_lock);
1285 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1286 }
1287 }
1288 }
1289 return (0);
1290}
1291
1292/*
1293 * Start / ReStart rescue timer for Discovery / RSCN handling
1294 */
1295void
1296lpfc_set_disctmo(struct lpfc_hba * phba)
1297{
1298 uint32_t tmo;
1299
1300 tmo = ((phba->fc_ratov * 2) + 1);
1301
1302 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1303 spin_lock_irq(phba->host->host_lock);
1304 phba->fc_flag |= FC_DISC_TMO;
1305 spin_unlock_irq(phba->host->host_lock);
1306
1307 /* Start Discovery Timer state <hba_state> */
1308 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1309 "%d:0247 Start Discovery Timer state x%x "
1310 "Data: x%x x%lx x%x x%x\n",
1311 phba->brd_no,
1312 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1313 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1314
1315 return;
1316}
1317
1318/*
1319 * Cancel rescue timer for Discovery / RSCN handling
1320 */
1321int
1322lpfc_can_disctmo(struct lpfc_hba * phba)
1323{
1324 /* Turn off discovery timer if its running */
1325 if (phba->fc_flag & FC_DISC_TMO) {
1326 spin_lock_irq(phba->host->host_lock);
1327 phba->fc_flag &= ~FC_DISC_TMO;
1328 spin_unlock_irq(phba->host->host_lock);
1329 del_timer_sync(&phba->fc_disctmo);
1330 phba->work_hba_events &= ~WORKER_DISC_TMO;
1331 }
1332
1333 /* Cancel Discovery Timer state <hba_state> */
1334 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1335 "%d:0248 Cancel Discovery Timer state x%x "
1336 "Data: x%x x%x x%x\n",
1337 phba->brd_no, phba->hba_state, phba->fc_flag,
1338 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1339
1340 return (0);
1341}
1342
1343/*
1344 * Check specified ring for outstanding IOCB on the SLI queue
1345 * Return true if iocb matches the specified nport
1346 */
1347int
1348lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1349 struct lpfc_sli_ring * pring,
1350 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1351{
1352 struct lpfc_sli *psli;
1353 IOCB_t *icmd;
1354
1355 psli = &phba->sli;
1356 icmd = &iocb->iocb;
1357 if (pring->ringno == LPFC_ELS_RING) {
1358 switch (icmd->ulpCommand) {
1359 case CMD_GEN_REQUEST64_CR:
1360 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1361 return (1);
1362 case CMD_ELS_REQUEST64_CR:
1363 case CMD_XMIT_ELS_RSP64_CX:
1364 if (iocb->context1 == (uint8_t *) ndlp)
1365 return (1);
1366 }
1367 } else if (pring->ringno == psli->ip_ring) {
1368
1369 } else if (pring->ringno == psli->fcp_ring) {
1370 /* Skip match check if waiting to relogin to FCP target */
1371 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1372 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1373 return (0);
1374 }
1375 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1376 return (1);
1377 }
1378 } else if (pring->ringno == psli->next_ring) {
1379
1380 }
1381 return (0);
1382}
1383
1384/*
1385 * Free resources / clean up outstanding I/Os
1386 * associated with nlp_rpi in the LPFC_NODELIST entry.
1387 */
1388static int
1389lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1390{
1391 struct lpfc_sli *psli;
1392 struct lpfc_sli_ring *pring;
1393 struct lpfc_iocbq *iocb, *next_iocb;
1394 IOCB_t *icmd;
1395 uint32_t rpi, i;
1396
1397 /*
1398 * Everything that matches on txcmplq will be returned
1399 * by firmware with a no rpi error.
1400 */
1401 psli = &phba->sli;
1402 rpi = ndlp->nlp_rpi;
1403 if (rpi) {
1404 /* Now process each ring */
1405 for (i = 0; i < psli->num_rings; i++) {
1406 pring = &psli->ring[i];
1407
1408 spin_lock_irq(phba->host->host_lock);
1409 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1410 list) {
1411 /*
1412 * Check to see if iocb matches the nport we are
1413 * looking for
1414 */
1415 if ((lpfc_check_sli_ndlp
1416 (phba, pring, iocb, ndlp))) {
1417 /* It matches, so deque and call compl
1418 with an error */
1419 list_del(&iocb->list);
1420 pring->txq_cnt--;
1421 if (iocb->iocb_cmpl) {
1422 icmd = &iocb->iocb;
1423 icmd->ulpStatus =
1424 IOSTAT_LOCAL_REJECT;
1425 icmd->un.ulpWord[4] =
1426 IOERR_SLI_ABORTED;
1427 spin_unlock_irq(phba->host->
1428 host_lock);
1429 (iocb->iocb_cmpl) (phba,
1430 iocb, iocb);
1431 spin_lock_irq(phba->host->
1432 host_lock);
1433 } else {
1434 list_add_tail(&iocb->list,
1435 &phba->lpfc_iocb_list);
1436 }
1437 }
1438 }
1439 spin_unlock_irq(phba->host->host_lock);
1440
1441 }
1442 }
1443 return (0);
1444}
1445
1446/*
1447 * Free rpi associated with LPFC_NODELIST entry.
1448 * This routine is called from lpfc_freenode(), when we are removing
1449 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1450 * LOGO that completes successfully, and we are waiting to PLOGI back
1451 * to the remote NPort. In addition, it is called after we receive
1452 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1453 * we are waiting to PLOGI back to the remote NPort.
1454 */
1455int
1456lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1457{
1458 LPFC_MBOXQ_t *mbox;
1459 int rc;
1460
1461 if (ndlp->nlp_rpi) {
1462 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1463 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1464 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1465 rc = lpfc_sli_issue_mbox
1466 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1467 if (rc == MBX_NOT_FINISHED)
1468 mempool_free( mbox, phba->mbox_mem_pool);
1469 }
1470 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1471 lpfc_no_rpi(phba, ndlp);
1472 ndlp->nlp_rpi = 0;
1473 return 1;
1474 }
1475 return 0;
1476}
1477
1478/*
1479 * Free resources associated with LPFC_NODELIST entry
1480 * so it can be freed.
1481 */
1482static int
1483lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1484{
1485 LPFC_MBOXQ_t *mb;
1486 LPFC_MBOXQ_t *nextmb;
1487 struct lpfc_dmabuf *mp;
1488 struct fc_rport *rport;
1489
1490 /* Cleanup node for NPort <nlp_DID> */
1491 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1492 "%d:0900 Cleanup node for NPort x%x "
1493 "Data: x%x x%x x%x\n",
1494 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1495 ndlp->nlp_state, ndlp->nlp_rpi);
1496
1497 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1498
1499 /*
1500 * if unloading the driver - just leave the remote port in place.
1501 * The driver unload will force the attached devices to detach
1502 * and flush cache's w/o generating flush errors.
1503 */
1504 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1505 rport = ndlp->rport;
1506 ndlp->rport = NULL;
1507 fc_remote_port_unblock(rport);
1508 fc_remote_port_delete(rport);
1509 ndlp->nlp_sid = NLP_NO_SID;
1510 }
1511
1512 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1513 if ((mb = phba->sli.mbox_active)) {
1514 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1515 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1516 mb->context2 = NULL;
1517 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1518 }
1519 }
1520 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1521 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1522 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1523 mp = (struct lpfc_dmabuf *) (mb->context1);
1524 if (mp) {
1525 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1526 kfree(mp);
1527 }
1528 list_del(&mb->list);
1529 mempool_free(mb, phba->mbox_mem_pool);
1530 }
1531 }
1532
1533 lpfc_els_abort(phba,ndlp,0);
1534 spin_lock_irq(phba->host->host_lock);
1535 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1536 spin_unlock_irq(phba->host->host_lock);
1537 del_timer_sync(&ndlp->nlp_tmofunc);
1538
1539 del_timer_sync(&ndlp->nlp_delayfunc);
1540
1541 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1542 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1543 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1544 list_del_init(&ndlp->els_retry_evt.evt_listp);
1545
1546 lpfc_unreg_rpi(phba, ndlp);
1547
1548 return (0);
1549}
1550
1551/*
1552 * Check to see if we can free the nlp back to the freelist.
1553 * If we are in the middle of using the nlp in the discovery state
1554 * machine, defer the free till we reach the end of the state machine.
1555 */
1556int
1557lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1558{
1559 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1560 spin_lock_irq(phba->host->host_lock);
1561 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1562 spin_unlock_irq(phba->host->host_lock);
1563 del_timer_sync(&ndlp->nlp_tmofunc);
1564 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1565 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1566
1567 }
1568
1569
1570 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1571 spin_lock_irq(phba->host->host_lock);
1572 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1573 spin_unlock_irq(phba->host->host_lock);
1574 del_timer_sync(&ndlp->nlp_delayfunc);
1575 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1576 list_del_init(&ndlp->els_retry_evt.evt_listp);
1577 }
1578
1579 if (ndlp->nlp_disc_refcnt) {
1580 spin_lock_irq(phba->host->host_lock);
1581 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1582 spin_unlock_irq(phba->host->host_lock);
1583 }
1584 else {
1585 lpfc_freenode(phba, ndlp);
1586 mempool_free( ndlp, phba->nlp_mem_pool);
1587 }
1588 return(0);
1589}
1590
1591static int
1592lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1593{
1594 D_ID mydid;
1595 D_ID ndlpdid;
1596 D_ID matchdid;
1597
1598 if (did == Bcast_DID)
1599 return (0);
1600
1601 if (ndlp->nlp_DID == 0) {
1602 return (0);
1603 }
1604
1605 /* First check for Direct match */
1606 if (ndlp->nlp_DID == did)
1607 return (1);
1608
1609 /* Next check for area/domain identically equals 0 match */
1610 mydid.un.word = phba->fc_myDID;
1611 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1612 return (0);
1613 }
1614
1615 matchdid.un.word = did;
1616 ndlpdid.un.word = ndlp->nlp_DID;
1617 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1618 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1619 (mydid.un.b.area == matchdid.un.b.area)) {
1620 if ((ndlpdid.un.b.domain == 0) &&
1621 (ndlpdid.un.b.area == 0)) {
1622 if (ndlpdid.un.b.id)
1623 return (1);
1624 }
1625 return (0);
1626 }
1627
1628 matchdid.un.word = ndlp->nlp_DID;
1629 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1630 (mydid.un.b.area == ndlpdid.un.b.area)) {
1631 if ((matchdid.un.b.domain == 0) &&
1632 (matchdid.un.b.area == 0)) {
1633 if (matchdid.un.b.id)
1634 return (1);
1635 }
1636 }
1637 }
1638 return (0);
1639}
1640
1641/* Search for a nodelist entry on a specific list */
1642struct lpfc_nodelist *
1643lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1644{
1645 struct lpfc_nodelist *ndlp, *next_ndlp;
1646 uint32_t data1;
1647
1648 if (order & NLP_SEARCH_UNMAPPED) {
1649 list_for_each_entry_safe(ndlp, next_ndlp,
1650 &phba->fc_nlpunmap_list, nlp_listp) {
1651 if (lpfc_matchdid(phba, ndlp, did)) {
1652 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1653 ((uint32_t) ndlp->nlp_xri << 16) |
1654 ((uint32_t) ndlp->nlp_type << 8) |
1655 ((uint32_t) ndlp->nlp_rpi & 0xff));
1656 /* FIND node DID unmapped */
1657 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1658 "%d:0929 FIND node DID unmapped"
1659 " Data: x%p x%x x%x x%x\n",
1660 phba->brd_no,
1661 ndlp, ndlp->nlp_DID,
1662 ndlp->nlp_flag, data1);
1663 return (ndlp);
1664 }
1665 }
1666 }
1667
1668 if (order & NLP_SEARCH_MAPPED) {
1669 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1670 nlp_listp) {
1671 if (lpfc_matchdid(phba, ndlp, did)) {
1672
1673 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1674 ((uint32_t) ndlp->nlp_xri << 16) |
1675 ((uint32_t) ndlp->nlp_type << 8) |
1676 ((uint32_t) ndlp->nlp_rpi & 0xff));
1677 /* FIND node DID mapped */
1678 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1679 "%d:0930 FIND node DID mapped "
1680 "Data: x%p x%x x%x x%x\n",
1681 phba->brd_no,
1682 ndlp, ndlp->nlp_DID,
1683 ndlp->nlp_flag, data1);
1684 return (ndlp);
1685 }
1686 }
1687 }
1688
1689 if (order & NLP_SEARCH_PLOGI) {
1690 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1691 nlp_listp) {
1692 if (lpfc_matchdid(phba, ndlp, did)) {
1693
1694 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1695 ((uint32_t) ndlp->nlp_xri << 16) |
1696 ((uint32_t) ndlp->nlp_type << 8) |
1697 ((uint32_t) ndlp->nlp_rpi & 0xff));
1698 /* LOG change to PLOGI */
1699 /* FIND node DID plogi */
1700 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1701 "%d:0908 FIND node DID plogi "
1702 "Data: x%p x%x x%x x%x\n",
1703 phba->brd_no,
1704 ndlp, ndlp->nlp_DID,
1705 ndlp->nlp_flag, data1);
1706 return (ndlp);
1707 }
1708 }
1709 }
1710
1711 if (order & NLP_SEARCH_ADISC) {
1712 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1713 nlp_listp) {
1714 if (lpfc_matchdid(phba, ndlp, did)) {
1715
1716 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1717 ((uint32_t) ndlp->nlp_xri << 16) |
1718 ((uint32_t) ndlp->nlp_type << 8) |
1719 ((uint32_t) ndlp->nlp_rpi & 0xff));
1720 /* LOG change to ADISC */
1721 /* FIND node DID adisc */
1722 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1723 "%d:0931 FIND node DID adisc "
1724 "Data: x%p x%x x%x x%x\n",
1725 phba->brd_no,
1726 ndlp, ndlp->nlp_DID,
1727 ndlp->nlp_flag, data1);
1728 return (ndlp);
1729 }
1730 }
1731 }
1732
1733 if (order & NLP_SEARCH_REGLOGIN) {
1734 list_for_each_entry_safe(ndlp, next_ndlp,
1735 &phba->fc_reglogin_list, nlp_listp) {
1736 if (lpfc_matchdid(phba, ndlp, did)) {
1737
1738 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1739 ((uint32_t) ndlp->nlp_xri << 16) |
1740 ((uint32_t) ndlp->nlp_type << 8) |
1741 ((uint32_t) ndlp->nlp_rpi & 0xff));
1742 /* LOG change to REGLOGIN */
1743 /* FIND node DID reglogin */
1744 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1745 "%d:0931 FIND node DID reglogin"
1746 " Data: x%p x%x x%x x%x\n",
1747 phba->brd_no,
1748 ndlp, ndlp->nlp_DID,
1749 ndlp->nlp_flag, data1);
1750 return (ndlp);
1751 }
1752 }
1753 }
1754
1755 if (order & NLP_SEARCH_PRLI) {
1756 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1757 nlp_listp) {
1758 if (lpfc_matchdid(phba, ndlp, did)) {
1759
1760 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1761 ((uint32_t) ndlp->nlp_xri << 16) |
1762 ((uint32_t) ndlp->nlp_type << 8) |
1763 ((uint32_t) ndlp->nlp_rpi & 0xff));
1764 /* LOG change to PRLI */
1765 /* FIND node DID prli */
1766 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1767 "%d:0931 FIND node DID prli "
1768 "Data: x%p x%x x%x x%x\n",
1769 phba->brd_no,
1770 ndlp, ndlp->nlp_DID,
1771 ndlp->nlp_flag, data1);
1772 return (ndlp);
1773 }
1774 }
1775 }
1776
1777 if (order & NLP_SEARCH_NPR) {
1778 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1779 nlp_listp) {
1780 if (lpfc_matchdid(phba, ndlp, did)) {
1781
1782 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1783 ((uint32_t) ndlp->nlp_xri << 16) |
1784 ((uint32_t) ndlp->nlp_type << 8) |
1785 ((uint32_t) ndlp->nlp_rpi & 0xff));
1786 /* LOG change to NPR */
1787 /* FIND node DID npr */
1788 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1789 "%d:0931 FIND node DID npr "
1790 "Data: x%p x%x x%x x%x\n",
1791 phba->brd_no,
1792 ndlp, ndlp->nlp_DID,
1793 ndlp->nlp_flag, data1);
1794 return (ndlp);
1795 }
1796 }
1797 }
1798
1799 if (order & NLP_SEARCH_UNUSED) {
1800 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1801 nlp_listp) {
1802 if (lpfc_matchdid(phba, ndlp, did)) {
1803
1804 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1805 ((uint32_t) ndlp->nlp_xri << 16) |
1806 ((uint32_t) ndlp->nlp_type << 8) |
1807 ((uint32_t) ndlp->nlp_rpi & 0xff));
1808 /* LOG change to UNUSED */
1809 /* FIND node DID unused */
1810 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1811 "%d:0931 FIND node DID unused "
1812 "Data: x%p x%x x%x x%x\n",
1813 phba->brd_no,
1814 ndlp, ndlp->nlp_DID,
1815 ndlp->nlp_flag, data1);
1816 return (ndlp);
1817 }
1818 }
1819 }
1820
1821 /* FIND node did <did> NOT FOUND */
1822 lpfc_printf_log(phba,
1823 KERN_INFO,
1824 LOG_NODE,
1825 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1826 phba->brd_no, did, order);
1827
1828 /* no match found */
1829 return NULL;
1830}
1831
1832struct lpfc_nodelist *
1833lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1834{
1835 struct lpfc_nodelist *ndlp;
1836 uint32_t flg;
1837
1838 if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1839 if ((phba->hba_state == LPFC_HBA_READY) &&
1840 ((lpfc_rscn_payload_check(phba, did) == 0)))
1841 return NULL;
1842 ndlp = (struct lpfc_nodelist *)
1843 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1844 if (!ndlp)
1845 return NULL;
1846 lpfc_nlp_init(phba, ndlp, did);
1847 ndlp->nlp_state = NLP_STE_NPR_NODE;
1848 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1849 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1850 return ndlp;
1851 }
1852 if ((phba->hba_state == LPFC_HBA_READY) &&
1853 (phba->fc_flag & FC_RSCN_MODE)) {
1854 if (lpfc_rscn_payload_check(phba, did)) {
1855 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1856 }
1857 else {
1858 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1859 ndlp = NULL;
1860 }
1861 }
1862 else {
1863 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1864 if ((flg == NLP_ADISC_LIST) ||
1865 (flg == NLP_PLOGI_LIST)) {
1866 return NULL;
1867 }
1868 ndlp->nlp_state = NLP_STE_NPR_NODE;
1869 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1870 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1871 }
1872 return ndlp;
1873}
1874
1875/* Build a list of nodes to discover based on the loopmap */
1876void
1877lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1878{
1879 int j;
1880 uint32_t alpa, index;
1881
1882 if (phba->hba_state <= LPFC_LINK_DOWN) {
1883 return;
1884 }
1885 if (phba->fc_topology != TOPOLOGY_LOOP) {
1886 return;
1887 }
1888
1889 /* Check for loop map present or not */
1890 if (phba->alpa_map[0]) {
1891 for (j = 1; j <= phba->alpa_map[0]; j++) {
1892 alpa = phba->alpa_map[j];
1893
1894 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1895 continue;
1896 }
1897 lpfc_setup_disc_node(phba, alpa);
1898 }
1899 } else {
1900 /* No alpamap, so try all alpa's */
1901 for (j = 0; j < FC_MAXLOOP; j++) {
1902 /* If cfg_scan_down is set, start from highest
1903 * ALPA (0xef) to lowest (0x1).
1904 */
1905 if (phba->cfg_scan_down)
1906 index = j;
1907 else
1908 index = FC_MAXLOOP - j - 1;
1909 alpa = lpfcAlpaArray[index];
1910 if ((phba->fc_myDID & 0xff) == alpa) {
1911 continue;
1912 }
1913
1914 lpfc_setup_disc_node(phba, alpa);
1915 }
1916 }
1917 return;
1918}
1919
1920/* Start Link up / RSCN discovery on NPR list */
1921void
1922lpfc_disc_start(struct lpfc_hba * phba)
1923{
1924 struct lpfc_sli *psli;
1925 LPFC_MBOXQ_t *mbox;
1926 struct lpfc_nodelist *ndlp, *next_ndlp;
1927 uint32_t did_changed, num_sent;
1928 uint32_t clear_la_pending;
1929 int rc;
1930
1931 psli = &phba->sli;
1932
1933 if (phba->hba_state <= LPFC_LINK_DOWN) {
1934 return;
1935 }
1936 if (phba->hba_state == LPFC_CLEAR_LA)
1937 clear_la_pending = 1;
1938 else
1939 clear_la_pending = 0;
1940
1941 if (phba->hba_state < LPFC_HBA_READY) {
1942 phba->hba_state = LPFC_DISC_AUTH;
1943 }
1944 lpfc_set_disctmo(phba);
1945
1946 if (phba->fc_prevDID == phba->fc_myDID) {
1947 did_changed = 0;
1948 } else {
1949 did_changed = 1;
1950 }
1951 phba->fc_prevDID = phba->fc_myDID;
1952 phba->num_disc_nodes = 0;
1953
1954 /* Start Discovery state <hba_state> */
1955 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1956 "%d:0202 Start Discovery hba state x%x "
1957 "Data: x%x x%x x%x\n",
1958 phba->brd_no, phba->hba_state, phba->fc_flag,
1959 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1960
1961 /* If our did changed, we MUST do PLOGI */
1962 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1963 nlp_listp) {
1964 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1965 if (did_changed) {
1966 spin_lock_irq(phba->host->host_lock);
1967 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1968 spin_unlock_irq(phba->host->host_lock);
1969 }
1970 }
1971 }
1972
1973 /* First do ADISCs - if any */
1974 num_sent = lpfc_els_disc_adisc(phba);
1975
1976 if (num_sent)
1977 return;
1978
1979 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1980 /* If we get here, there is nothing to ADISC */
1981 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1982 phba->hba_state = LPFC_CLEAR_LA;
1983 lpfc_clear_la(phba, mbox);
1984 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1985 rc = lpfc_sli_issue_mbox(phba, mbox,
1986 (MBX_NOWAIT | MBX_STOP_IOCB));
1987 if (rc == MBX_NOT_FINISHED) {
1988 mempool_free( mbox, phba->mbox_mem_pool);
1989 lpfc_disc_flush_list(phba);
1990 psli->ring[(psli->ip_ring)].flag &=
1991 ~LPFC_STOP_IOCB_EVENT;
1992 psli->ring[(psli->fcp_ring)].flag &=
1993 ~LPFC_STOP_IOCB_EVENT;
1994 psli->ring[(psli->next_ring)].flag &=
1995 ~LPFC_STOP_IOCB_EVENT;
1996 phba->hba_state = LPFC_HBA_READY;
1997 }
1998 }
1999 } else {
2000 /* Next do PLOGIs - if any */
2001 num_sent = lpfc_els_disc_plogi(phba);
2002
2003 if (num_sent)
2004 return;
2005
2006 if (phba->fc_flag & FC_RSCN_MODE) {
2007 /* Check to see if more RSCNs came in while we
2008 * were processing this one.
2009 */
2010 if ((phba->fc_rscn_id_cnt == 0) &&
2011 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2012 spin_lock_irq(phba->host->host_lock);
2013 phba->fc_flag &= ~FC_RSCN_MODE;
2014 spin_unlock_irq(phba->host->host_lock);
2015 }
2016 else
2017 lpfc_els_handle_rscn(phba);
2018 }
2019 }
2020 return;
2021}
2022
2023/*
2024 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2025 * ring the match the sppecified nodelist.
2026 */
2027static void
2028lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2029{
2030 struct lpfc_sli *psli;
2031 IOCB_t *icmd;
2032 struct lpfc_iocbq *iocb, *next_iocb;
2033 struct lpfc_sli_ring *pring;
2034 struct lpfc_dmabuf *mp;
2035
2036 psli = &phba->sli;
2037 pring = &psli->ring[LPFC_ELS_RING];
2038
2039 /* Error matching iocb on txq or txcmplq
2040 * First check the txq.
2041 */
2042 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2043 if (iocb->context1 != ndlp) {
2044 continue;
2045 }
2046 icmd = &iocb->iocb;
2047 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2048 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2049
2050 list_del(&iocb->list);
2051 pring->txq_cnt--;
2052 lpfc_els_free_iocb(phba, iocb);
2053 }
2054 }
2055
2056 /* Next check the txcmplq */
2057 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2058 if (iocb->context1 != ndlp) {
2059 continue;
2060 }
2061 icmd = &iocb->iocb;
2062 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2063 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2064
2065 iocb->iocb_cmpl = NULL;
2066 /* context2 = cmd, context2->next = rsp, context3 =
2067 bpl */
2068 if (iocb->context2) {
2069 /* Free the response IOCB before handling the
2070 command. */
2071
2072 mp = (struct lpfc_dmabuf *) (iocb->context2);
2073 mp = list_get_first(&mp->list,
2074 struct lpfc_dmabuf,
2075 list);
2076 if (mp) {
2077 /* Delay before releasing rsp buffer to
2078 * give UNREG mbox a chance to take
2079 * effect.
2080 */
2081 list_add(&mp->list,
2082 &phba->freebufList);
2083 }
2084 lpfc_mbuf_free(phba,
2085 ((struct lpfc_dmabuf *)
2086 iocb->context2)->virt,
2087 ((struct lpfc_dmabuf *)
2088 iocb->context2)->phys);
2089 kfree(iocb->context2);
2090 }
2091
2092 if (iocb->context3) {
2093 lpfc_mbuf_free(phba,
2094 ((struct lpfc_dmabuf *)
2095 iocb->context3)->virt,
2096 ((struct lpfc_dmabuf *)
2097 iocb->context3)->phys);
2098 kfree(iocb->context3);
2099 }
2100 }
2101 }
2102
2103 return;
2104}
2105
2106void
2107lpfc_disc_flush_list(struct lpfc_hba * phba)
2108{
2109 struct lpfc_nodelist *ndlp, *next_ndlp;
2110
2111 if (phba->fc_plogi_cnt) {
2112 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2113 nlp_listp) {
2114 lpfc_free_tx(phba, ndlp);
2115 lpfc_nlp_remove(phba, ndlp);
2116 }
2117 }
2118 if (phba->fc_adisc_cnt) {
2119 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2120 nlp_listp) {
2121 lpfc_free_tx(phba, ndlp);
2122 lpfc_nlp_remove(phba, ndlp);
2123 }
2124 }
2125 return;
2126}
2127
2128/*****************************************************************************/
2129/*
2130 * NAME: lpfc_disc_timeout
2131 *
2132 * FUNCTION: Fibre Channel driver discovery timeout routine.
2133 *
2134 * EXECUTION ENVIRONMENT: interrupt only
2135 *
2136 * CALLED FROM:
2137 * Timer function
2138 *
2139 * RETURNS:
2140 * none
2141 */
2142/*****************************************************************************/
2143void
2144lpfc_disc_timeout(unsigned long ptr)
2145{
2146 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2147 unsigned long flags = 0;
2148
2149 if (unlikely(!phba))
2150 return;
2151
2152 spin_lock_irqsave(phba->host->host_lock, flags);
2153 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2154 phba->work_hba_events |= WORKER_DISC_TMO;
2155 if (phba->work_wait)
2156 wake_up(phba->work_wait);
2157 }
2158 spin_unlock_irqrestore(phba->host->host_lock, flags);
2159 return;
2160}
2161
2162static void
2163lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2164{
2165 struct lpfc_sli *psli;
2166 struct lpfc_nodelist *ndlp;
2167 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2168 int rc, clrlaerr = 0;
2169
2170 if (unlikely(!phba))
2171 return;
2172
2173 if (!(phba->fc_flag & FC_DISC_TMO))
2174 return;
2175
2176 psli = &phba->sli;
2177
2178 spin_lock_irq(phba->host->host_lock);
2179 phba->fc_flag &= ~FC_DISC_TMO;
2180 spin_unlock_irq(phba->host->host_lock);
2181
2182 switch (phba->hba_state) {
2183
2184 case LPFC_LOCAL_CFG_LINK:
2185 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2186 /* FAN timeout */
2187 lpfc_printf_log(phba,
2188 KERN_WARNING,
2189 LOG_DISCOVERY,
2190 "%d:0221 FAN timeout\n",
2191 phba->brd_no);
2192
2193 /* Forget about FAN, Start discovery by sending a FLOGI
2194 * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2195 * cmpl
2196 */
2197 phba->hba_state = LPFC_FLOGI;
2198 lpfc_set_disctmo(phba);
2199 lpfc_initial_flogi(phba);
2200 break;
2201
2202 case LPFC_FLOGI:
2203 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2204 /* Initial FLOGI timeout */
2205 lpfc_printf_log(phba,
2206 KERN_ERR,
2207 LOG_DISCOVERY,
2208 "%d:0222 Initial FLOGI timeout\n",
2209 phba->brd_no);
2210
2211 /* Assume no Fabric and go on with discovery.
2212 * Check for outstanding ELS FLOGI to abort.
2213 */
2214
2215 /* FLOGI failed, so just use loop map to make discovery list */
2216 lpfc_disc_list_loopmap(phba);
2217
2218 /* Start discovery */
2219 lpfc_disc_start(phba);
2220 break;
2221
2222 case LPFC_FABRIC_CFG_LINK:
2223 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2224 NameServer login */
2225 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2226 "%d:0223 Timeout while waiting for NameServer "
2227 "login\n", phba->brd_no);
2228
2229 /* Next look for NameServer ndlp */
2230 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2231 if (ndlp)
2232 lpfc_nlp_remove(phba, ndlp);
2233 /* Start discovery */
2234 lpfc_disc_start(phba);
2235 break;
2236
2237 case LPFC_NS_QRY:
2238 /* Check for wait for NameServer Rsp timeout */
2239 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2240 "%d:0224 NameServer Query timeout "
2241 "Data: x%x x%x\n",
2242 phba->brd_no,
2243 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2244
2245 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2246 NameServer_DID);
2247 if (ndlp) {
2248 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2249 /* Try it one more time */
2250 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2251 if (rc == 0)
2252 break;
2253 }
2254 phba->fc_ns_retry = 0;
2255 }
2256
2257 /* Nothing to authenticate, so CLEAR_LA right now */
2258 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2259 if (!clearlambox) {
2260 clrlaerr = 1;
2261 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2262 "%d:0226 Device Discovery "
2263 "completion error\n",
2264 phba->brd_no);
2265 phba->hba_state = LPFC_HBA_ERROR;
2266 break;
2267 }
2268
2269 phba->hba_state = LPFC_CLEAR_LA;
2270 lpfc_clear_la(phba, clearlambox);
2271 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2272 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2273 (MBX_NOWAIT | MBX_STOP_IOCB));
2274 if (rc == MBX_NOT_FINISHED) {
2275 mempool_free(clearlambox, phba->mbox_mem_pool);
2276 clrlaerr = 1;
2277 break;
2278 }
2279
2280 /* Setup and issue mailbox INITIALIZE LINK command */
2281 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2282 if (!initlinkmbox) {
2283 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2284 "%d:0226 Device Discovery "
2285 "completion error\n",
2286 phba->brd_no);
2287 phba->hba_state = LPFC_HBA_ERROR;
2288 break;
2289 }
2290
2291 lpfc_linkdown(phba);
2292 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2293 phba->cfg_link_speed);
2294 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2295 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2296 (MBX_NOWAIT | MBX_STOP_IOCB));
2297 if (rc == MBX_NOT_FINISHED)
2298 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2299
2300 break;
2301
2302 case LPFC_DISC_AUTH:
2303 /* Node Authentication timeout */
2304 lpfc_printf_log(phba,
2305 KERN_ERR,
2306 LOG_DISCOVERY,
2307 "%d:0227 Node Authentication timeout\n",
2308 phba->brd_no);
2309 lpfc_disc_flush_list(phba);
2310 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2311 if (!clearlambox) {
2312 clrlaerr = 1;
2313 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2314 "%d:0226 Device Discovery "
2315 "completion error\n",
2316 phba->brd_no);
2317 phba->hba_state = LPFC_HBA_ERROR;
2318 break;
2319 }
2320 phba->hba_state = LPFC_CLEAR_LA;
2321 lpfc_clear_la(phba, clearlambox);
2322 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2323 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2324 (MBX_NOWAIT | MBX_STOP_IOCB));
2325 if (rc == MBX_NOT_FINISHED) {
2326 mempool_free(clearlambox, phba->mbox_mem_pool);
2327 clrlaerr = 1;
2328 }
2329 break;
2330
2331 case LPFC_CLEAR_LA:
2332 /* CLEAR LA timeout */
2333 lpfc_printf_log(phba,
2334 KERN_ERR,
2335 LOG_DISCOVERY,
2336 "%d:0228 CLEAR LA timeout\n",
2337 phba->brd_no);
2338 clrlaerr = 1;
2339 break;
2340
2341 case LPFC_HBA_READY:
2342 if (phba->fc_flag & FC_RSCN_MODE) {
2343 lpfc_printf_log(phba,
2344 KERN_ERR,
2345 LOG_DISCOVERY,
2346 "%d:0231 RSCN timeout Data: x%x x%x\n",
2347 phba->brd_no,
2348 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2349
2350 /* Cleanup any outstanding ELS commands */
2351 lpfc_els_flush_cmd(phba);
2352
2353 lpfc_els_flush_rscn(phba);
2354 lpfc_disc_flush_list(phba);
2355 }
2356 break;
2357 }
2358
2359 if (clrlaerr) {
2360 lpfc_disc_flush_list(phba);
2361 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2362 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2363 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2364 phba->hba_state = LPFC_HBA_READY;
2365 }
2366
2367 return;
2368}
2369
2370static void
2371lpfc_nodev_timeout(unsigned long ptr)
2372{
2373 struct lpfc_hba *phba;
2374 struct lpfc_nodelist *ndlp;
2375 unsigned long iflag;
2376 struct lpfc_work_evt *evtp;
2377
2378 ndlp = (struct lpfc_nodelist *)ptr;
2379 phba = ndlp->nlp_phba;
2380 evtp = &ndlp->nodev_timeout_evt;
2381 spin_lock_irqsave(phba->host->host_lock, iflag);
2382
2383 if (!list_empty(&evtp->evt_listp)) {
2384 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2385 return;
2386 }
2387 evtp->evt_arg1 = ndlp;
2388 evtp->evt = LPFC_EVT_NODEV_TMO;
2389 list_add_tail(&evtp->evt_listp, &phba->work_list);
2390 if (phba->work_wait)
2391 wake_up(phba->work_wait);
2392
2393 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2394 return;
2395}
2396
2397
2398/*
2399 * This routine handles processing a NameServer REG_LOGIN mailbox
2400 * command upon completion. It is setup in the LPFC_MBOXQ
2401 * as the completion routine when the command is
2402 * handed off to the SLI layer.
2403 */
2404void
2405lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2406{
2407 struct lpfc_sli *psli;
2408 MAILBOX_t *mb;
2409 struct lpfc_dmabuf *mp;
2410 struct lpfc_nodelist *ndlp;
2411
2412 psli = &phba->sli;
2413 mb = &pmb->mb;
2414
2415 ndlp = (struct lpfc_nodelist *) pmb->context2;
2416 mp = (struct lpfc_dmabuf *) (pmb->context1);
2417
2418 pmb->context1 = NULL;
2419
2420 if (ndlp->nlp_rpi != 0)
2421 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
2422 ndlp->nlp_rpi = mb->un.varWords[0];
2423 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
2424 ndlp->nlp_type |= NLP_FABRIC;
2425 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2426 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2427
2428 /* Start issuing Fabric-Device Management Interface (FDMI)
2429 * command to 0xfffffa (FDMI well known port)
2430 */
2431 if (phba->cfg_fdmi_on == 1) {
2432 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2433 } else {
2434 /*
2435 * Delay issuing FDMI command if fdmi-on=2
2436 * (supporting RPA/hostnmae)
2437 */
2438 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2439 }
2440
2441 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2442 kfree(mp);
2443 mempool_free( pmb, phba->mbox_mem_pool);
2444
2445 return;
2446}
2447
2448/*
2449 * This routine looks up the ndlp hash
2450 * table for the given RPI. If rpi found
2451 * it return the node list pointer
2452 * else return 0.
2453 */
2454struct lpfc_nodelist *
2455lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2456{
2457 struct lpfc_nodelist *ret;
2458
2459 ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2460 while ((ret != 0) && (ret->nlp_rpi != rpi)) {
2461 ret = ret->nlp_rpi_hash_next;
2462 }
2463 return ret;
2464}
2465
2466/*
2467 * This routine looks up the ndlp hash table for the
2468 * given RPI. If rpi found it return the node list
2469 * pointer else return 0 after deleting the entry
2470 * from hash table.
2471 */
2472struct lpfc_nodelist *
2473lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi)
2474{
2475 struct lpfc_nodelist *ret, *temp;;
2476
2477 ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2478 if (ret == 0)
2479 return NULL;
2480
2481 if (ret->nlp_rpi == rpi) {
2482 phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] =
2483 ret->nlp_rpi_hash_next;
2484 ret->nlp_rpi_hash_next = NULL;
2485 return ret;
2486 }
2487
2488 while ((ret->nlp_rpi_hash_next != 0) &&
2489 (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) {
2490 ret = ret->nlp_rpi_hash_next;
2491 }
2492
2493 if (ret->nlp_rpi_hash_next != 0) {
2494 temp = ret->nlp_rpi_hash_next;
2495 ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next;
2496 temp->nlp_rpi_hash_next = NULL;
2497 return temp;
2498 } else {
2499 return NULL;
2500 }
2501}
2502
2503/*
2504 * This routine adds the node list entry to the
2505 * ndlp hash table.
2506 */
2507void
2508lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2509 uint16_t rpi)
2510{
2511
2512 uint32_t index;
2513
2514 index = LPFC_RPI_HASH_FUNC(rpi);
2515 ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index];
2516 phba->fc_nlplookup[index] = ndlp;
2517 return;
2518}
2519
2520void
2521lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2522 uint32_t did)
2523{
2524 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2525 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2526 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2527 init_timer(&ndlp->nlp_tmofunc);
2528 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2529 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2530 init_timer(&ndlp->nlp_delayfunc);
2531 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2532 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2533 ndlp->nlp_DID = did;
2534 ndlp->nlp_phba = phba;
2535 ndlp->nlp_sid = NLP_NO_SID;
2536 return;
2537}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-18 22:51:07 -0500