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[SCSI] FC transport: Add dev_loss_tmo callbacks, and new fast_io_fail_tmo w/ callback
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
41415862 4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/kthread.h>
25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e 28#include <scsi/scsi_device.h>
29#include <scsi/scsi_host.h>
30#include <scsi/scsi_transport_fc.h>
31
32#include "lpfc_hw.h"
33#include "lpfc_disc.h"
34#include "lpfc_sli.h"
35#include "lpfc_scsi.h"
36#include "lpfc.h"
37#include "lpfc_logmsg.h"
38#include "lpfc_crtn.h"
39
40/* AlpaArray for assignment of scsid for scan-down and bind_method */
41static uint8_t lpfcAlpaArray[] = {
42 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
43 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
44 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
45 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
46 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
47 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
48 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
49 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
50 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
51 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
52 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
53 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
54 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
55};
56
57static void lpfc_disc_timeout_handler(struct lpfc_hba *);
58
59static void
60lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
61{
488d1469 62 uint8_t *name = (uint8_t *)&ndlp->nlp_portname;
6e8215e4 63 int warn_on = 0;
dea3101e 64
65 spin_lock_irq(phba->host->host_lock);
66 if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
67 spin_unlock_irq(phba->host->host_lock);
68 return;
69 }
70
1a169689
JS		 71 /*
72 * If a discovery event readded nodev_timer after timer
73 * firing and before processing the timer, cancel the
74 * nlp_tmofunc.
75 */
76 spin_unlock_irq(phba->host->host_lock);
77 del_timer_sync(&ndlp->nlp_tmofunc);
78 spin_lock_irq(phba->host->host_lock);
79
dea3101e 80 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
81
82 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 83 warn_on = 1;
dea3101e 84 /* flush the target */
85 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
86 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
87 }
88 spin_unlock_irq(phba->host->host_lock);
89
6e8215e4
JSEC		 90 if (warn_on) {
91 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
488d1469
JS		 92 "%d:0203 Nodev timeout on "
93 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
94 "NPort x%x Data: x%x x%x x%x\n",
95 phba->brd_no,
96 *name, *(name+1), *(name+2), *(name+3),
97 *(name+4), *(name+5), *(name+6), *(name+7),
98 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 99 ndlp->nlp_state, ndlp->nlp_rpi);
100 } else {
101 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
488d1469
JS		 102 "%d:0204 Nodev timeout on "
103 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
104 "NPort x%x Data: x%x x%x x%x\n",
105 phba->brd_no,
106 *name, *(name+1), *(name+2), *(name+3),
107 *(name+4), *(name+5), *(name+6), *(name+7),
108 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 109 ndlp->nlp_state, ndlp->nlp_rpi);
110 }
111
dea3101e 112 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
113 return;
114}
115
116static void
117lpfc_work_list_done(struct lpfc_hba * phba)
118{
119 struct lpfc_work_evt *evtp = NULL;
120 struct lpfc_nodelist *ndlp;
121 int free_evt;
122
123 spin_lock_irq(phba->host->host_lock);
124 while(!list_empty(&phba->work_list)) {
125 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
126 evt_listp);
127 spin_unlock_irq(phba->host->host_lock);
128 free_evt = 1;
2fe165b6 129 switch (evtp->evt) {
dea3101e 130 case LPFC_EVT_NODEV_TMO:
131 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
132 lpfc_process_nodev_timeout(phba, ndlp);
133 free_evt = 0;
134 break;
135 case LPFC_EVT_ELS_RETRY:
136 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
137 lpfc_els_retry_delay_handler(ndlp);
138 free_evt = 0;
139 break;
140 case LPFC_EVT_ONLINE:
41415862
JW		 141 if (phba->hba_state < LPFC_LINK_DOWN)
142 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
143 else
144 *(int *)(evtp->evt_arg1) = 0;
dea3101e 145 complete((struct completion *)(evtp->evt_arg2));
146 break;
147 case LPFC_EVT_OFFLINE:
41415862
JW		 148 if (phba->hba_state >= LPFC_LINK_DOWN)
149 lpfc_offline(phba);
150 lpfc_sli_brdrestart(phba);
151 *(int *)(evtp->evt_arg1) =
152 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
153 complete((struct completion *)(evtp->evt_arg2));
154 break;
155 case LPFC_EVT_WARM_START:
156 if (phba->hba_state >= LPFC_LINK_DOWN)
157 lpfc_offline(phba);
9290831f 158 lpfc_reset_barrier(phba);
41415862
JW		 159 lpfc_sli_brdreset(phba);
160 lpfc_hba_down_post(phba);
161 *(int *)(evtp->evt_arg1) =
162 lpfc_sli_brdready(phba, HS_MBRDY);
163 complete((struct completion *)(evtp->evt_arg2));
164 break;
165 case LPFC_EVT_KILL:
166 if (phba->hba_state >= LPFC_LINK_DOWN)
167 lpfc_offline(phba);
9290831f
JS		 168 *(int *)(evtp->evt_arg1)
169 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
dea3101e 170 complete((struct completion *)(evtp->evt_arg2));
171 break;
172 }
173 if (free_evt)
174 kfree(evtp);
175 spin_lock_irq(phba->host->host_lock);
176 }
177 spin_unlock_irq(phba->host->host_lock);
178
179}
180
181static void
182lpfc_work_done(struct lpfc_hba * phba)
183{
184 struct lpfc_sli_ring *pring;
185 int i;
186 uint32_t ha_copy;
187 uint32_t control;
188 uint32_t work_hba_events;
189
190 spin_lock_irq(phba->host->host_lock);
191 ha_copy = phba->work_ha;
192 phba->work_ha = 0;
193 work_hba_events=phba->work_hba_events;
194 spin_unlock_irq(phba->host->host_lock);
195
2fe165b6 196 if (ha_copy & HA_ERATT)
dea3101e 197 lpfc_handle_eratt(phba);
198
2fe165b6 199 if (ha_copy & HA_MBATT)
dea3101e 200 lpfc_sli_handle_mb_event(phba);
201
2fe165b6 202 if (ha_copy & HA_LATT)
dea3101e 203 lpfc_handle_latt(phba);
204
205 if (work_hba_events & WORKER_DISC_TMO)
206 lpfc_disc_timeout_handler(phba);
207
208 if (work_hba_events & WORKER_ELS_TMO)
209 lpfc_els_timeout_handler(phba);
210
211 if (work_hba_events & WORKER_MBOX_TMO)
212 lpfc_mbox_timeout_handler(phba);
213
214 if (work_hba_events & WORKER_FDMI_TMO)
215 lpfc_fdmi_tmo_handler(phba);
216
217 spin_lock_irq(phba->host->host_lock);
218 phba->work_hba_events &= ~work_hba_events;
219 spin_unlock_irq(phba->host->host_lock);
220
221 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
222 pring = &phba->sli.ring[i];
223 if ((ha_copy & HA_RXATT)
224 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
225 if (pring->flag & LPFC_STOP_IOCB_MASK) {
226 pring->flag |= LPFC_DEFERRED_RING_EVENT;
227 } else {
228 lpfc_sli_handle_slow_ring_event(phba, pring,
229 (ha_copy &
230 HA_RXMASK));
231 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
232 }
233 /*
234 * Turn on Ring interrupts
235 */
236 spin_lock_irq(phba->host->host_lock);
237 control = readl(phba->HCregaddr);
238 control |= (HC_R0INT_ENA << i);
239 writel(control, phba->HCregaddr);
240 readl(phba->HCregaddr); /* flush */
241 spin_unlock_irq(phba->host->host_lock);
242 }
243 }
244
245 lpfc_work_list_done (phba);
246
247}
248
249static int
250check_work_wait_done(struct lpfc_hba *phba) {
251
252 spin_lock_irq(phba->host->host_lock);
253 if (phba->work_ha ||
254 phba->work_hba_events ||
255 (!list_empty(&phba->work_list)) ||
256 kthread_should_stop()) {
257 spin_unlock_irq(phba->host->host_lock);
258 return 1;
259 } else {
260 spin_unlock_irq(phba->host->host_lock);
261 return 0;
262 }
263}
264
265int
266lpfc_do_work(void *p)
267{
268 struct lpfc_hba *phba = p;
269 int rc;
270 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
271
272 set_user_nice(current, -20);
273 phba->work_wait = &work_waitq;
274
275 while (1) {
276
277 rc = wait_event_interruptible(work_waitq,
278 check_work_wait_done(phba));
279 BUG_ON(rc);
280
281 if (kthread_should_stop())
282 break;
283
284 lpfc_work_done(phba);
285
286 }
287 phba->work_wait = NULL;
288 return 0;
289}
290
291/*
292 * This is only called to handle FC worker events. Since this a rare
293 * occurance, we allocate a struct lpfc_work_evt structure here instead of
294 * embedding it in the IOCB.
295 */
296int
297lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
298 uint32_t evt)
299{
300 struct lpfc_work_evt *evtp;
301
302 /*
303 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
304 * be queued to worker thread for processing
305 */
306 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
307 if (!evtp)
308 return 0;
309
310 evtp->evt_arg1 = arg1;
311 evtp->evt_arg2 = arg2;
312 evtp->evt = evt;
313
dea3101e 314 spin_lock_irq(phba->host->host_lock);
071fbd3d 315 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 316 if (phba->work_wait)
317 wake_up(phba->work_wait);
318 spin_unlock_irq(phba->host->host_lock);
319
320 return 1;
321}
322
323int
324lpfc_linkdown(struct lpfc_hba * phba)
325{
326 struct lpfc_sli *psli;
327 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b 328 struct list_head *listp, *node_list[7];
dea3101e 329 LPFC_MBOXQ_t *mb;
330 int rc, i;
331
332 psli = &phba->sli;
c9f8735b 333 /* sysfs or selective reset may call this routine to clean up */
5024ab17
JW		 334 if (phba->hba_state >= LPFC_LINK_DOWN) {
335 if (phba->hba_state == LPFC_LINK_DOWN)
336 return 0;
337
c9f8735b
JW		 338 spin_lock_irq(phba->host->host_lock);
339 phba->hba_state = LPFC_LINK_DOWN;
340 spin_unlock_irq(phba->host->host_lock);
341 }
dea3101e 342
d2873e4c
JS		 343 fc_host_post_event(phba->host, fc_get_event_number(),
344 FCH_EVT_LINKDOWN, 0);
345
dea3101e 346 /* Clean up any firmware default rpi's */
347 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
348 lpfc_unreg_did(phba, 0xffffffff, mb);
349 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
350 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
351 == MBX_NOT_FINISHED) {
352 mempool_free( mb, phba->mbox_mem_pool);
353 }
354 }
355
356 /* Cleanup any outstanding RSCN activity */
357 lpfc_els_flush_rscn(phba);
358
359 /* Cleanup any outstanding ELS commands */
360 lpfc_els_flush_cmd(phba);
361
362 /* Issue a LINK DOWN event to all nodes */
363 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
364 node_list[1] = &phba->fc_nlpmap_list;
365 node_list[2] = &phba->fc_nlpunmap_list;
366 node_list[3] = &phba->fc_prli_list;
367 node_list[4] = &phba->fc_reglogin_list;
368 node_list[5] = &phba->fc_adisc_list;
369 node_list[6] = &phba->fc_plogi_list;
370 for (i = 0; i < 7; i++) {
371 listp = node_list[i];
372 if (list_empty(listp))
373 continue;
374
375 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
c9f8735b
JW		 376
377 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
378 NLP_EVT_DEVICE_RECOVERY);
379
380 /* Check config parameter use-adisc or FCP-2 */
381 if ((rc != NLP_STE_FREED_NODE) &&
382 (phba->cfg_use_adisc == 0) &&
2fe165b6 383 !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
c9f8735b
JW		 384 /* We know we will have to relogin, so
385 * unreglogin the rpi right now to fail
386 * any outstanding I/Os quickly.
387 */
388 lpfc_unreg_rpi(phba, ndlp);
dea3101e 389 }
390 }
391 }
392
393 /* free any ndlp's on unused list */
394 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
395 nlp_listp) {
396 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
397 }
398
399 /* Setup myDID for link up if we are in pt2pt mode */
400 if (phba->fc_flag & FC_PT2PT) {
401 phba->fc_myDID = 0;
402 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
403 lpfc_config_link(phba, mb);
404 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
405 if (lpfc_sli_issue_mbox
406 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
407 == MBX_NOT_FINISHED) {
408 mempool_free( mb, phba->mbox_mem_pool);
409 }
410 }
411 spin_lock_irq(phba->host->host_lock);
412 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
413 spin_unlock_irq(phba->host->host_lock);
414 }
415 spin_lock_irq(phba->host->host_lock);
416 phba->fc_flag &= ~FC_LBIT;
417 spin_unlock_irq(phba->host->host_lock);
418
419 /* Turn off discovery timer if its running */
420 lpfc_can_disctmo(phba);
421
422 /* Must process IOCBs on all rings to handle ABORTed I/Os */
2fe165b6 423 return 0;
dea3101e 424}
425
426static int
427lpfc_linkup(struct lpfc_hba * phba)
428{
429 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b
JW		 430 struct list_head *listp, *node_list[7];
431 int i;
dea3101e 432
d2873e4c
JS		 433 fc_host_post_event(phba->host, fc_get_event_number(),
434 FCH_EVT_LINKUP, 0);
435
dea3101e 436 spin_lock_irq(phba->host->host_lock);
437 phba->hba_state = LPFC_LINK_UP;
438 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
439 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
440 phba->fc_flag |= FC_NDISC_ACTIVE;
441 phba->fc_ns_retry = 0;
442 spin_unlock_irq(phba->host->host_lock);
443
444
c9f8735b
JW		 445 node_list[0] = &phba->fc_plogi_list;
446 node_list[1] = &phba->fc_adisc_list;
447 node_list[2] = &phba->fc_reglogin_list;
448 node_list[3] = &phba->fc_prli_list;
449 node_list[4] = &phba->fc_nlpunmap_list;
450 node_list[5] = &phba->fc_nlpmap_list;
451 node_list[6] = &phba->fc_npr_list;
452 for (i = 0; i < 7; i++) {
453 listp = node_list[i];
454 if (list_empty(listp))
455 continue;
456
457 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
458 if (phba->fc_flag & FC_LBIT) {
459 if (ndlp->nlp_type & NLP_FABRIC) {
460 /* On Linkup its safe to clean up the
461 * ndlp from Fabric connections.
462 */
463 lpfc_nlp_list(phba, ndlp,
464 NLP_UNUSED_LIST);
465 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
466 /* Fail outstanding IO now since device
467 * is marked for PLOGI.
468 */
469 lpfc_unreg_rpi(phba, ndlp);
470 }
471 }
dea3101e 472 }
473 }
474
475 /* free any ndlp's on unused list */
476 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
477 nlp_listp) {
478 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
479 }
480
481 return 0;
482}
483
484/*
485 * This routine handles processing a CLEAR_LA mailbox
486 * command upon completion. It is setup in the LPFC_MBOXQ
487 * as the completion routine when the command is
488 * handed off to the SLI layer.
489 */
490void
491lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
492{
493 struct lpfc_sli *psli;
494 MAILBOX_t *mb;
495 uint32_t control;
496
497 psli = &phba->sli;
498 mb = &pmb->mb;
499 /* Since we don't do discovery right now, turn these off here */
500 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
501 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
502 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
503
504 /* Check for error */
505 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
506 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
507 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
508 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
509 "state x%x\n",
510 phba->brd_no, mb->mbxStatus, phba->hba_state);
511
512 phba->hba_state = LPFC_HBA_ERROR;
513 goto out;
514 }
515
516 if (phba->fc_flag & FC_ABORT_DISCOVERY)
517 goto out;
518
519 phba->num_disc_nodes = 0;
520 /* go thru NPR list and issue ELS PLOGIs */
521 if (phba->fc_npr_cnt) {
522 lpfc_els_disc_plogi(phba);
523 }
524
2fe165b6 525 if (!phba->num_disc_nodes) {
dea3101e 526 spin_lock_irq(phba->host->host_lock);
527 phba->fc_flag &= ~FC_NDISC_ACTIVE;
528 spin_unlock_irq(phba->host->host_lock);
529 }
530
531 phba->hba_state = LPFC_HBA_READY;
532
533out:
534 /* Device Discovery completes */
535 lpfc_printf_log(phba,
536 KERN_INFO,
537 LOG_DISCOVERY,
538 "%d:0225 Device Discovery completes\n",
539 phba->brd_no);
540
541 mempool_free( pmb, phba->mbox_mem_pool);
542
543 spin_lock_irq(phba->host->host_lock);
544 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
545 if (phba->fc_flag & FC_ESTABLISH_LINK) {
546 phba->fc_flag &= ~FC_ESTABLISH_LINK;
547 }
548 spin_unlock_irq(phba->host->host_lock);
549
550 del_timer_sync(&phba->fc_estabtmo);
551
552 lpfc_can_disctmo(phba);
553
554 /* turn on Link Attention interrupts */
555 spin_lock_irq(phba->host->host_lock);
556 psli->sli_flag |= LPFC_PROCESS_LA;
557 control = readl(phba->HCregaddr);
558 control |= HC_LAINT_ENA;
559 writel(control, phba->HCregaddr);
560 readl(phba->HCregaddr); /* flush */
561 spin_unlock_irq(phba->host->host_lock);
562
563 return;
564}
565
566static void
25594c6b 567lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 568{
25594c6b
JW		 569 struct lpfc_sli *psli = &phba->sli;
570 int rc;
dea3101e 571
25594c6b 572 if (pmb->mb.mbxStatus)
dea3101e 573 goto out;
dea3101e 574
25594c6b
JW		 575 mempool_free(pmb, phba->mbox_mem_pool);
576
577 if (phba->fc_topology == TOPOLOGY_LOOP &&
578 phba->fc_flag & FC_PUBLIC_LOOP &&
579 !(phba->fc_flag & FC_LBIT)) {
580 /* Need to wait for FAN - use discovery timer
581 * for timeout. hba_state is identically
582 * LPFC_LOCAL_CFG_LINK while waiting for FAN
583 */
584 lpfc_set_disctmo(phba);
585 return;
dea3101e 586 }
587
25594c6b
JW		 588 /* Start discovery by sending a FLOGI. hba_state is identically
589 * LPFC_FLOGI while waiting for FLOGI cmpl
590 */
591 phba->hba_state = LPFC_FLOGI;
592 lpfc_set_disctmo(phba);
593 lpfc_initial_flogi(phba);
594 return;
dea3101e 595
596out:
25594c6b
JW		 597 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
598 "%d:0306 CONFIG_LINK mbxStatus error x%x "
599 "HBA state x%x\n",
600 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
601
602 lpfc_linkdown(phba);
603
604 phba->hba_state = LPFC_HBA_ERROR;
605
606 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dea3101e 607 "%d:0200 CONFIG_LINK bad hba state x%x\n",
608 phba->brd_no, phba->hba_state);
609
25594c6b
JW		 610 lpfc_clear_la(phba, pmb);
611 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
612 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
613 if (rc == MBX_NOT_FINISHED) {
614 mempool_free(pmb, phba->mbox_mem_pool);
615 lpfc_disc_flush_list(phba);
616 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
617 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
618 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
619 phba->hba_state = LPFC_HBA_READY;
dea3101e 620 }
621 return;
622}
623
624static void
625lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
626{
627 struct lpfc_sli *psli = &phba->sli;
628 MAILBOX_t *mb = &pmb->mb;
629 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
630
631
632 /* Check for error */
633 if (mb->mbxStatus) {
634 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
635 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
636 "%d:0319 READ_SPARAM mbxStatus error x%x "
637 "hba state x%x>\n",
638 phba->brd_no, mb->mbxStatus, phba->hba_state);
639
640 lpfc_linkdown(phba);
641 phba->hba_state = LPFC_HBA_ERROR;
642 goto out;
643 }
644
645 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
646 sizeof (struct serv_parm));
647 memcpy((uint8_t *) & phba->fc_nodename,
648 (uint8_t *) & phba->fc_sparam.nodeName,
649 sizeof (struct lpfc_name));
650 memcpy((uint8_t *) & phba->fc_portname,
651 (uint8_t *) & phba->fc_sparam.portName,
652 sizeof (struct lpfc_name));
653 lpfc_mbuf_free(phba, mp->virt, mp->phys);
654 kfree(mp);
655 mempool_free( pmb, phba->mbox_mem_pool);
656 return;
657
658out:
659 pmb->context1 = NULL;
660 lpfc_mbuf_free(phba, mp->virt, mp->phys);
661 kfree(mp);
662 if (phba->hba_state != LPFC_CLEAR_LA) {
663 lpfc_clear_la(phba, pmb);
664 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
665 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
666 == MBX_NOT_FINISHED) {
667 mempool_free( pmb, phba->mbox_mem_pool);
668 lpfc_disc_flush_list(phba);
669 psli->ring[(psli->ip_ring)].flag &=
670 ~LPFC_STOP_IOCB_EVENT;
671 psli->ring[(psli->fcp_ring)].flag &=
672 ~LPFC_STOP_IOCB_EVENT;
673 psli->ring[(psli->next_ring)].flag &=
674 ~LPFC_STOP_IOCB_EVENT;
675 phba->hba_state = LPFC_HBA_READY;
676 }
677 } else {
678 mempool_free( pmb, phba->mbox_mem_pool);
679 }
680 return;
681}
682
683static void
684lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
685{
686 int i;
687 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
688 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
689 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
690
691 spin_lock_irq(phba->host->host_lock);
2fe165b6 692 switch (la->UlnkSpeed) {
dea3101e 693 case LA_1GHZ_LINK:
694 phba->fc_linkspeed = LA_1GHZ_LINK;
695 break;
696 case LA_2GHZ_LINK:
697 phba->fc_linkspeed = LA_2GHZ_LINK;
698 break;
699 case LA_4GHZ_LINK:
700 phba->fc_linkspeed = LA_4GHZ_LINK;
701 break;
702 default:
703 phba->fc_linkspeed = LA_UNKNW_LINK;
704 break;
705 }
706
707 phba->fc_topology = la->topology;
708
709 if (phba->fc_topology == TOPOLOGY_LOOP) {
710 /* Get Loop Map information */
711
712 if (la->il)
713 phba->fc_flag |= FC_LBIT;
714
715 phba->fc_myDID = la->granted_AL_PA;
716 i = la->un.lilpBde64.tus.f.bdeSize;
717
718 if (i == 0) {
719 phba->alpa_map[0] = 0;
720 } else {
721 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
722 int numalpa, j, k;
723 union {
724 uint8_t pamap[16];
725 struct {
726 uint32_t wd1;
727 uint32_t wd2;
728 uint32_t wd3;
729 uint32_t wd4;
730 } pa;
731 } un;
732 numalpa = phba->alpa_map[0];
733 j = 0;
734 while (j < numalpa) {
735 memset(un.pamap, 0, 16);
736 for (k = 1; j < numalpa; k++) {
737 un.pamap[k - 1] =
738 phba->alpa_map[j + 1];
739 j++;
740 if (k == 16)
741 break;
742 }
743 /* Link Up Event ALPA map */
744 lpfc_printf_log(phba,
745 KERN_WARNING,
746 LOG_LINK_EVENT,
747 "%d:1304 Link Up Event "
748 "ALPA map Data: x%x "
749 "x%x x%x x%x\n",
750 phba->brd_no,
751 un.pa.wd1, un.pa.wd2,
752 un.pa.wd3, un.pa.wd4);
753 }
754 }
755 }
756 } else {
757 phba->fc_myDID = phba->fc_pref_DID;
758 phba->fc_flag |= FC_LBIT;
759 }
760 spin_unlock_irq(phba->host->host_lock);
761
762 lpfc_linkup(phba);
763 if (sparam_mbox) {
764 lpfc_read_sparam(phba, sparam_mbox);
765 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
766 lpfc_sli_issue_mbox(phba, sparam_mbox,
767 (MBX_NOWAIT | MBX_STOP_IOCB));
768 }
769
770 if (cfglink_mbox) {
771 phba->hba_state = LPFC_LOCAL_CFG_LINK;
772 lpfc_config_link(phba, cfglink_mbox);
25594c6b 773 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
dea3101e 774 lpfc_sli_issue_mbox(phba, cfglink_mbox,
775 (MBX_NOWAIT | MBX_STOP_IOCB));
776 }
777}
778
779static void
780lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
781 uint32_t control;
782 struct lpfc_sli *psli = &phba->sli;
783
784 lpfc_linkdown(phba);
785
786 /* turn on Link Attention interrupts - no CLEAR_LA needed */
787 spin_lock_irq(phba->host->host_lock);
788 psli->sli_flag |= LPFC_PROCESS_LA;
789 control = readl(phba->HCregaddr);
790 control |= HC_LAINT_ENA;
791 writel(control, phba->HCregaddr);
792 readl(phba->HCregaddr); /* flush */
793 spin_unlock_irq(phba->host->host_lock);
794}
795
796/*
797 * This routine handles processing a READ_LA mailbox
798 * command upon completion. It is setup in the LPFC_MBOXQ
799 * as the completion routine when the command is
800 * handed off to the SLI layer.
801 */
802void
803lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
804{
805 READ_LA_VAR *la;
806 MAILBOX_t *mb = &pmb->mb;
807 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
808
809 /* Check for error */
810 if (mb->mbxStatus) {
811 lpfc_printf_log(phba,
812 KERN_INFO,
813 LOG_LINK_EVENT,
814 "%d:1307 READ_LA mbox error x%x state x%x\n",
815 phba->brd_no,
816 mb->mbxStatus, phba->hba_state);
817 lpfc_mbx_issue_link_down(phba);
818 phba->hba_state = LPFC_HBA_ERROR;
819 goto lpfc_mbx_cmpl_read_la_free_mbuf;
820 }
821
822 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
823
824 memcpy(&phba->alpa_map[0], mp->virt, 128);
825
c9f8735b
JW		 826 spin_lock_irq(phba->host->host_lock);
827 if (la->pb)
828 phba->fc_flag |= FC_BYPASSED_MODE;
829 else
830 phba->fc_flag &= ~FC_BYPASSED_MODE;
831 spin_unlock_irq(phba->host->host_lock);
832
dea3101e 833 if (((phba->fc_eventTag + 1) < la->eventTag) ||
834 (phba->fc_eventTag == la->eventTag)) {
835 phba->fc_stat.LinkMultiEvent++;
836 if (la->attType == AT_LINK_UP) {
837 if (phba->fc_eventTag != 0)
838 lpfc_linkdown(phba);
839 }
840 }
841
842 phba->fc_eventTag = la->eventTag;
843
844 if (la->attType == AT_LINK_UP) {
845 phba->fc_stat.LinkUp++;
846 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
847 "%d:1303 Link Up Event x%x received "
848 "Data: x%x x%x x%x x%x\n",
849 phba->brd_no, la->eventTag, phba->fc_eventTag,
850 la->granted_AL_PA, la->UlnkSpeed,
851 phba->alpa_map[0]);
852 lpfc_mbx_process_link_up(phba, la);
853 } else {
854 phba->fc_stat.LinkDown++;
855 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
856 "%d:1305 Link Down Event x%x received "
857 "Data: x%x x%x x%x\n",
858 phba->brd_no, la->eventTag, phba->fc_eventTag,
859 phba->hba_state, phba->fc_flag);
860 lpfc_mbx_issue_link_down(phba);
861 }
862
863lpfc_mbx_cmpl_read_la_free_mbuf:
864 lpfc_mbuf_free(phba, mp->virt, mp->phys);
865 kfree(mp);
866 mempool_free(pmb, phba->mbox_mem_pool);
867 return;
868}
869
870/*
871 * This routine handles processing a REG_LOGIN mailbox
872 * command upon completion. It is setup in the LPFC_MBOXQ
873 * as the completion routine when the command is
874 * handed off to the SLI layer.
875 */
876void
877lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
878{
879 struct lpfc_sli *psli;
880 MAILBOX_t *mb;
881 struct lpfc_dmabuf *mp;
882 struct lpfc_nodelist *ndlp;
883
884 psli = &phba->sli;
885 mb = &pmb->mb;
886
887 ndlp = (struct lpfc_nodelist *) pmb->context2;
888 mp = (struct lpfc_dmabuf *) (pmb->context1);
889
890 pmb->context1 = NULL;
891
892 /* Good status, call state machine */
893 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
894 lpfc_mbuf_free(phba, mp->virt, mp->phys);
895 kfree(mp);
896 mempool_free( pmb, phba->mbox_mem_pool);
897
898 return;
899}
900
901/*
902 * This routine handles processing a Fabric REG_LOGIN mailbox
903 * command upon completion. It is setup in the LPFC_MBOXQ
904 * as the completion routine when the command is
905 * handed off to the SLI layer.
906 */
907void
908lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
909{
910 struct lpfc_sli *psli;
911 MAILBOX_t *mb;
912 struct lpfc_dmabuf *mp;
913 struct lpfc_nodelist *ndlp;
914 struct lpfc_nodelist *ndlp_fdmi;
915
916
917 psli = &phba->sli;
918 mb = &pmb->mb;
919
920 ndlp = (struct lpfc_nodelist *) pmb->context2;
921 mp = (struct lpfc_dmabuf *) (pmb->context1);
922
923 if (mb->mbxStatus) {
924 lpfc_mbuf_free(phba, mp->virt, mp->phys);
925 kfree(mp);
926 mempool_free( pmb, phba->mbox_mem_pool);
927 mempool_free( ndlp, phba->nlp_mem_pool);
928
929 /* FLOGI failed, so just use loop map to make discovery list */
930 lpfc_disc_list_loopmap(phba);
931
932 /* Start discovery */
933 lpfc_disc_start(phba);
934 return;
935 }
936
937 pmb->context1 = NULL;
938
dea3101e 939 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 940 ndlp->nlp_type |= NLP_FABRIC;
941 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
942 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
943
944 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
945 /* This NPort has been assigned an NPort_ID by the fabric as a
946 * result of the completed fabric login. Issue a State Change
947 * Registration (SCR) ELS request to the fabric controller
948 * (SCR_DID) so that this NPort gets RSCN events from the
949 * fabric.
950 */
951 lpfc_issue_els_scr(phba, SCR_DID, 0);
952
c9f8735b
JW		 953 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
954 if (!ndlp) {
955 /* Allocate a new node instance. If the pool is empty,
956 * start the discovery process and skip the Nameserver
957 * login process. This is attempted again later on.
958 * Otherwise, issue a Port Login (PLOGI) to NameServer.
959 */
960 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
961 if (!ndlp) {
962 lpfc_disc_start(phba);
963 lpfc_mbuf_free(phba, mp->virt, mp->phys);
964 kfree(mp);
965 mempool_free( pmb, phba->mbox_mem_pool);
966 return;
967 } else {
968 lpfc_nlp_init(phba, ndlp, NameServer_DID);
969 ndlp->nlp_type |= NLP_FABRIC;
970 }
971 }
972 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
973 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 974 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
c9f8735b
JW		 975 if (phba->cfg_fdmi_on) {
976 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
977 GFP_KERNEL);
978 if (ndlp_fdmi) {
979 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
980 ndlp_fdmi->nlp_type |= NLP_FABRIC;
981 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
488d1469 982 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
dea3101e 983 }
984 }
985 }
986
987 lpfc_mbuf_free(phba, mp->virt, mp->phys);
988 kfree(mp);
989 mempool_free( pmb, phba->mbox_mem_pool);
dea3101e 990 return;
991}
992
993/*
994 * This routine handles processing a NameServer REG_LOGIN mailbox
995 * command upon completion. It is setup in the LPFC_MBOXQ
996 * as the completion routine when the command is
997 * handed off to the SLI layer.
998 */
999void
1000lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1001{
1002 struct lpfc_sli *psli;
1003 MAILBOX_t *mb;
1004 struct lpfc_dmabuf *mp;
1005 struct lpfc_nodelist *ndlp;
1006
1007 psli = &phba->sli;
1008 mb = &pmb->mb;
1009
1010 ndlp = (struct lpfc_nodelist *) pmb->context2;
1011 mp = (struct lpfc_dmabuf *) (pmb->context1);
1012
1013 if (mb->mbxStatus) {
1014 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1015 kfree(mp);
1016 mempool_free( pmb, phba->mbox_mem_pool);
1017 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1018
1019 /* RegLogin failed, so just use loop map to make discovery
1020 list */
1021 lpfc_disc_list_loopmap(phba);
1022
1023 /* Start discovery */
1024 lpfc_disc_start(phba);
1025 return;
1026 }
1027
1028 pmb->context1 = NULL;
1029
dea3101e 1030 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1031 ndlp->nlp_type |= NLP_FABRIC;
1032 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1033 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1034
1035 if (phba->hba_state < LPFC_HBA_READY) {
1036 /* Link up discovery requires Fabrib registration. */
1037 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1038 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1039 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1040 }
1041
1042 phba->fc_ns_retry = 0;
1043 /* Good status, issue CT Request to NameServer */
1044 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1045 /* Cannot issue NameServer Query, so finish up discovery */
1046 lpfc_disc_start(phba);
1047 }
1048
1049 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1050 kfree(mp);
1051 mempool_free( pmb, phba->mbox_mem_pool);
1052
1053 return;
1054}
1055
1056static void
1057lpfc_register_remote_port(struct lpfc_hba * phba,
1058 struct lpfc_nodelist * ndlp)
1059{
1060 struct fc_rport *rport;
1061 struct lpfc_rport_data *rdata;
1062 struct fc_rport_identifiers rport_ids;
dea3101e 1063
1064 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1065 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1066 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1067 rport_ids.port_id = ndlp->nlp_DID;
1068 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1069
1070 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1071 if (!rport) {
1072 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1073 "Warning: fc_remote_port_add failed\n");
1074 return;
1075 }
1076
1077 /* initialize static port data */
1078 rport->maxframe_size = ndlp->nlp_maxframe;
1079 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1080 rdata = rport->dd_data;
1081 rdata->pnode = ndlp;
23dc04f1
JSEC		 1082
1083 if (ndlp->nlp_type & NLP_FCP_TARGET)
1084 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1085 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1086 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1087
1088
1089 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1090 fc_remote_port_rolechg(rport, rport_ids.roles);
1091
071fbd3d 1092 if ((rport->scsi_target_id != -1) &&
e17da18e 1093 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1094 ndlp->nlp_sid = rport->scsi_target_id;
1095 }
19a7b4ae
JSEC		 1096
1097 return;
1098}
1099
1100static void
1101lpfc_unregister_remote_port(struct lpfc_hba * phba,
1102 struct lpfc_nodelist * ndlp)
1103{
1104 struct fc_rport *rport = ndlp->rport;
1105 struct lpfc_rport_data *rdata = rport->dd_data;
1106
1107 ndlp->rport = NULL;
1108 rdata->pnode = NULL;
19a7b4ae 1109 fc_remote_port_delete(rport);
dea3101e 1110
1111 return;
1112}
1113
1114int
1115lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1116{
1117 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1118 struct lpfc_sli *psli;
1119
1120 psli = &phba->sli;
1121 /* Sanity check to ensure we are not moving to / from the same list */
2fe165b6 1122 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
dea3101e 1123 if (list != NLP_NO_LIST)
2fe165b6 1124 return 0;
dea3101e 1125
66a9ed66 1126 spin_lock_irq(phba->host->host_lock);
2fe165b6 1127 switch (nlp->nlp_flag & NLP_LIST_MASK) {
dea3101e 1128 case NLP_NO_LIST: /* Not on any list */
1129 break;
1130 case NLP_UNUSED_LIST:
1131 phba->fc_unused_cnt--;
1132 list_del(&nlp->nlp_listp);
1133 break;
1134 case NLP_PLOGI_LIST:
1135 phba->fc_plogi_cnt--;
1136 list_del(&nlp->nlp_listp);
1137 break;
1138 case NLP_ADISC_LIST:
1139 phba->fc_adisc_cnt--;
1140 list_del(&nlp->nlp_listp);
1141 break;
1142 case NLP_REGLOGIN_LIST:
1143 phba->fc_reglogin_cnt--;
1144 list_del(&nlp->nlp_listp);
1145 break;
1146 case NLP_PRLI_LIST:
1147 phba->fc_prli_cnt--;
1148 list_del(&nlp->nlp_listp);
1149 break;
1150 case NLP_UNMAPPED_LIST:
1151 phba->fc_unmap_cnt--;
1152 list_del(&nlp->nlp_listp);
dea3101e 1153 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1154 nlp->nlp_type &= ~NLP_FC_NODE;
dea3101e 1155 phba->nport_event_cnt++;
1156 if (nlp->rport)
1157 rport_del = unmapped;
1158 break;
1159 case NLP_MAPPED_LIST:
1160 phba->fc_map_cnt--;
1161 list_del(&nlp->nlp_listp);
1162 phba->nport_event_cnt++;
1163 if (nlp->rport)
1164 rport_del = mapped;
1165 break;
1166 case NLP_NPR_LIST:
1167 phba->fc_npr_cnt--;
1168 list_del(&nlp->nlp_listp);
1169 /* Stop delay tmo if taking node off NPR list */
1170 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1171 (list != NLP_NPR_LIST)) {
66a9ed66 1172 spin_unlock_irq(phba->host->host_lock);
fdcebe28 1173 lpfc_cancel_retry_delay_tmo(phba, nlp);
66a9ed66 1174 spin_lock_irq(phba->host->host_lock);
dea3101e 1175 }
1176 break;
1177 }
1178
dea3101e 1179 nlp->nlp_flag &= ~NLP_LIST_MASK;
dea3101e 1180
1181 /* Add NPort <did> to <num> list */
1182 lpfc_printf_log(phba,
1183 KERN_INFO,
1184 LOG_NODE,
1185 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1186 phba->brd_no,
1187 nlp->nlp_DID, list, nlp->nlp_flag);
1188
2fe165b6 1189 switch (list) {
dea3101e 1190 case NLP_NO_LIST: /* No list, just remove it */
66a9ed66 1191 spin_unlock_irq(phba->host->host_lock);
dea3101e 1192 lpfc_nlp_remove(phba, nlp);
66a9ed66 1193 spin_lock_irq(phba->host->host_lock);
8cbdc5ff
JSEC		 1194 /* as node removed - stop further transport calls */
1195 rport_del = none;
dea3101e 1196 break;
1197 case NLP_UNUSED_LIST:
dea3101e 1198 nlp->nlp_flag |= list;
dea3101e 1199 /* Put it at the end of the unused list */
1200 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1201 phba->fc_unused_cnt++;
1202 break;
1203 case NLP_PLOGI_LIST:
dea3101e 1204 nlp->nlp_flag |= list;
dea3101e 1205 /* Put it at the end of the plogi list */
1206 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1207 phba->fc_plogi_cnt++;
1208 break;
1209 case NLP_ADISC_LIST:
dea3101e 1210 nlp->nlp_flag |= list;
dea3101e 1211 /* Put it at the end of the adisc list */
1212 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1213 phba->fc_adisc_cnt++;
1214 break;
1215 case NLP_REGLOGIN_LIST:
dea3101e 1216 nlp->nlp_flag |= list;
dea3101e 1217 /* Put it at the end of the reglogin list */
1218 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1219 phba->fc_reglogin_cnt++;
1220 break;
1221 case NLP_PRLI_LIST:
dea3101e 1222 nlp->nlp_flag |= list;
dea3101e 1223 /* Put it at the end of the prli list */
1224 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1225 phba->fc_prli_cnt++;
1226 break;
1227 case NLP_UNMAPPED_LIST:
1228 rport_add = unmapped;
1229 /* ensure all vestiges of "mapped" significance are gone */
1230 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
dea3101e 1231 nlp->nlp_flag |= list;
dea3101e 1232 /* Put it at the end of the unmap list */
1233 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1234 phba->fc_unmap_cnt++;
1235 phba->nport_event_cnt++;
1236 /* stop nodev tmo if running */
1237 if (nlp->nlp_flag & NLP_NODEV_TMO) {
dea3101e 1238 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1239 spin_unlock_irq(phba->host->host_lock);
1240 del_timer_sync(&nlp->nlp_tmofunc);
66a9ed66 1241 spin_lock_irq(phba->host->host_lock);
dea3101e 1242 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1243 list_del_init(&nlp->nodev_timeout_evt.
1244 evt_listp);
1245
1246 }
a0f9b48d 1247 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
dea3101e 1248 nlp->nlp_type |= NLP_FC_NODE;
1249 break;
1250 case NLP_MAPPED_LIST:
1251 rport_add = mapped;
dea3101e 1252 nlp->nlp_flag |= list;
dea3101e 1253 /* Put it at the end of the map list */
1254 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1255 phba->fc_map_cnt++;
1256 phba->nport_event_cnt++;
1257 /* stop nodev tmo if running */
1258 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1259 nlp->nlp_flag &= ~NLP_NODEV_TMO;
66a9ed66 1260 spin_unlock_irq(phba->host->host_lock);
dea3101e 1261 del_timer_sync(&nlp->nlp_tmofunc);
66a9ed66 1262 spin_lock_irq(phba->host->host_lock);
dea3101e 1263 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1264 list_del_init(&nlp->nodev_timeout_evt.
1265 evt_listp);
1266
1267 }
a0f9b48d 1268 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
dea3101e 1269 break;
1270 case NLP_NPR_LIST:
dea3101e 1271 nlp->nlp_flag |= list;
dea3101e 1272 /* Put it at the end of the npr list */
1273 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1274 phba->fc_npr_cnt++;
1275
2fe165b6 1276 if (!(nlp->nlp_flag & NLP_NODEV_TMO))
dea3101e 1277 mod_timer(&nlp->nlp_tmofunc,
c9f8735b 1278 jiffies + HZ * phba->cfg_nodev_tmo);
2fe165b6 1279
dea3101e 1280 nlp->nlp_flag |= NLP_NODEV_TMO;
1281 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
dea3101e 1282 break;
1283 case NLP_JUST_DQ:
1284 break;
1285 }
1286
66a9ed66
JW		 1287 spin_unlock_irq(phba->host->host_lock);
1288
dea3101e 1289 /*
1290 * We make all the calls into the transport after we have
1291 * moved the node between lists. This so that we don't
1292 * release the lock while in-between lists.
1293 */
1294
1295 /* Don't upcall midlayer if we're unloading */
1296 if (!(phba->fc_flag & FC_UNLOADING)) {
1297 /*
1298 * We revalidate the rport pointer as the "add" function
1299 * may have removed the remote port.
1300 */
1301 if ((rport_del != none) && nlp->rport)
19a7b4ae 1302 lpfc_unregister_remote_port(phba, nlp);
dea3101e 1303
1304 if (rport_add != none) {
1305 /*
1306 * Tell the fc transport about the port, if we haven't
1307 * already. If we have, and it's a scsi entity, be
1308 * sure to unblock any attached scsi devices
1309 */
1310 if (!nlp->rport)
1311 lpfc_register_remote_port(phba, nlp);
dea3101e 1312
1313 /*
1314 * if we added to Mapped list, but the remote port
1315 * registration failed or assigned a target id outside
1316 * our presentable range - move the node to the
1317 * Unmapped List
1318 */
1319 if ((rport_add == mapped) &&
1320 ((!nlp->rport) ||
1321 (nlp->rport->scsi_target_id == -1) ||
e17da18e 1322 (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
dea3101e 1323 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1324 spin_lock_irq(phba->host->host_lock);
1325 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1326 spin_unlock_irq(phba->host->host_lock);
1327 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1328 }
1329 }
1330 }
2fe165b6 1331 return 0;
dea3101e 1332}
1333
1334/*
1335 * Start / ReStart rescue timer for Discovery / RSCN handling
1336 */
1337void
1338lpfc_set_disctmo(struct lpfc_hba * phba)
1339{
1340 uint32_t tmo;
1341
c9f8735b
JW		 1342 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1343 /* For FAN, timeout should be greater then edtov */
1344 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1345 } else {
1346 /* Normal discovery timeout should be > then ELS/CT timeout
1347 * FC spec states we need 3 * ratov for CT requests
1348 */
1349 tmo = ((phba->fc_ratov * 3) + 3);
1350 }
dea3101e 1351
1352 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1353 spin_lock_irq(phba->host->host_lock);
1354 phba->fc_flag |= FC_DISC_TMO;
1355 spin_unlock_irq(phba->host->host_lock);
1356
1357 /* Start Discovery Timer state <hba_state> */
1358 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1359 "%d:0247 Start Discovery Timer state x%x "
1360 "Data: x%x x%lx x%x x%x\n",
1361 phba->brd_no,
1362 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1363 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1364
1365 return;
1366}
1367
1368/*
1369 * Cancel rescue timer for Discovery / RSCN handling
1370 */
1371int
1372lpfc_can_disctmo(struct lpfc_hba * phba)
1373{
1374 /* Turn off discovery timer if its running */
1375 if (phba->fc_flag & FC_DISC_TMO) {
1376 spin_lock_irq(phba->host->host_lock);
1377 phba->fc_flag &= ~FC_DISC_TMO;
1378 spin_unlock_irq(phba->host->host_lock);
1379 del_timer_sync(&phba->fc_disctmo);
1380 phba->work_hba_events &= ~WORKER_DISC_TMO;
1381 }
1382
1383 /* Cancel Discovery Timer state <hba_state> */
1384 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1385 "%d:0248 Cancel Discovery Timer state x%x "
1386 "Data: x%x x%x x%x\n",
1387 phba->brd_no, phba->hba_state, phba->fc_flag,
1388 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1389
2fe165b6 1390 return 0;
dea3101e 1391}
1392
1393/*
1394 * Check specified ring for outstanding IOCB on the SLI queue
1395 * Return true if iocb matches the specified nport
1396 */
1397int
1398lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1399 struct lpfc_sli_ring * pring,
1400 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1401{
1402 struct lpfc_sli *psli;
1403 IOCB_t *icmd;
1404
1405 psli = &phba->sli;
1406 icmd = &iocb->iocb;
1407 if (pring->ringno == LPFC_ELS_RING) {
1408 switch (icmd->ulpCommand) {
1409 case CMD_GEN_REQUEST64_CR:
1410 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1411 return 1;
dea3101e 1412 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1413 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1414 return 1;
dea3101e 1415 case CMD_XMIT_ELS_RSP64_CX:
1416 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1417 return 1;
dea3101e 1418 }
1419 } else if (pring->ringno == psli->ip_ring) {
1420
1421 } else if (pring->ringno == psli->fcp_ring) {
1422 /* Skip match check if waiting to relogin to FCP target */
1423 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1424 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1425 return 0;
dea3101e 1426 }
1427 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1428 return 1;
dea3101e 1429 }
1430 } else if (pring->ringno == psli->next_ring) {
1431
1432 }
2fe165b6 1433 return 0;
dea3101e 1434}
1435
1436/*
1437 * Free resources / clean up outstanding I/Os
1438 * associated with nlp_rpi in the LPFC_NODELIST entry.
1439 */
1440static int
1441lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1442{
1443 struct lpfc_sli *psli;
1444 struct lpfc_sli_ring *pring;
1445 struct lpfc_iocbq *iocb, *next_iocb;
1446 IOCB_t *icmd;
1447 uint32_t rpi, i;
1448
1449 /*
1450 * Everything that matches on txcmplq will be returned
1451 * by firmware with a no rpi error.
1452 */
1453 psli = &phba->sli;
1454 rpi = ndlp->nlp_rpi;
1455 if (rpi) {
1456 /* Now process each ring */
1457 for (i = 0; i < psli->num_rings; i++) {
1458 pring = &psli->ring[i];
1459
1460 spin_lock_irq(phba->host->host_lock);
1461 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1462 list) {
1463 /*
1464 * Check to see if iocb matches the nport we are
1465 * looking for
1466 */
1467 if ((lpfc_check_sli_ndlp
1468 (phba, pring, iocb, ndlp))) {
1469 /* It matches, so deque and call compl
1470 with an error */
1471 list_del(&iocb->list);
1472 pring->txq_cnt--;
1473 if (iocb->iocb_cmpl) {
1474 icmd = &iocb->iocb;
1475 icmd->ulpStatus =
1476 IOSTAT_LOCAL_REJECT;
1477 icmd->un.ulpWord[4] =
1478 IOERR_SLI_ABORTED;
1479 spin_unlock_irq(phba->host->
1480 host_lock);
1481 (iocb->iocb_cmpl) (phba,
1482 iocb, iocb);
1483 spin_lock_irq(phba->host->
1484 host_lock);
604a3e30
JB		 1485 } else
1486 lpfc_sli_release_iocbq(phba,
1487 iocb);
dea3101e 1488 }
1489 }
1490 spin_unlock_irq(phba->host->host_lock);
1491
1492 }
1493 }
2fe165b6 1494 return 0;
dea3101e 1495}
1496
1497/*
1498 * Free rpi associated with LPFC_NODELIST entry.
1499 * This routine is called from lpfc_freenode(), when we are removing
1500 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1501 * LOGO that completes successfully, and we are waiting to PLOGI back
1502 * to the remote NPort. In addition, it is called after we receive
1503 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1504 * we are waiting to PLOGI back to the remote NPort.
1505 */
1506int
1507lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1508{
1509 LPFC_MBOXQ_t *mbox;
1510 int rc;
1511
1512 if (ndlp->nlp_rpi) {
1513 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1514 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1515 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1516 rc = lpfc_sli_issue_mbox
1517 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1518 if (rc == MBX_NOT_FINISHED)
1519 mempool_free( mbox, phba->mbox_mem_pool);
1520 }
dea3101e 1521 lpfc_no_rpi(phba, ndlp);
1522 ndlp->nlp_rpi = 0;
1523 return 1;
1524 }
1525 return 0;
1526}
1527
1528/*
1529 * Free resources associated with LPFC_NODELIST entry
1530 * so it can be freed.
1531 */
1532static int
1533lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1534{
1535 LPFC_MBOXQ_t *mb;
1536 LPFC_MBOXQ_t *nextmb;
1537 struct lpfc_dmabuf *mp;
dea3101e 1538
1539 /* Cleanup node for NPort <nlp_DID> */
1540 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1541 "%d:0900 Cleanup node for NPort x%x "
1542 "Data: x%x x%x x%x\n",
1543 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1544 ndlp->nlp_state, ndlp->nlp_rpi);
1545
1546 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1547
1548 /*
1549 * if unloading the driver - just leave the remote port in place.
1550 * The driver unload will force the attached devices to detach
1551 * and flush cache's w/o generating flush errors.
1552 */
1553 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
19a7b4ae 1554 lpfc_unregister_remote_port(phba, ndlp);
dea3101e 1555 ndlp->nlp_sid = NLP_NO_SID;
1556 }
1557
1558 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1559 if ((mb = phba->sli.mbox_active)) {
1560 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1561 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1562 mb->context2 = NULL;
1563 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1564 }
1565 }
33ccf8d1
JS		 1566
1567 spin_lock_irq(phba->host->host_lock);
dea3101e 1568 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1569 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1570 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1571 mp = (struct lpfc_dmabuf *) (mb->context1);
1572 if (mp) {
1573 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1574 kfree(mp);
1575 }
1576 list_del(&mb->list);
1577 mempool_free(mb, phba->mbox_mem_pool);
1578 }
1579 }
33ccf8d1 1580 spin_unlock_irq(phba->host->host_lock);
dea3101e 1581
1582 lpfc_els_abort(phba,ndlp,0);
1583 spin_lock_irq(phba->host->host_lock);
1584 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1585 spin_unlock_irq(phba->host->host_lock);
1586 del_timer_sync(&ndlp->nlp_tmofunc);
1587
5024ab17 1588 ndlp->nlp_last_elscmd = 0;
dea3101e 1589 del_timer_sync(&ndlp->nlp_delayfunc);
1590
1591 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1592 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1593 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1594 list_del_init(&ndlp->els_retry_evt.evt_listp);
1595
1596 lpfc_unreg_rpi(phba, ndlp);
1597
2fe165b6 1598 return 0;
dea3101e 1599}
1600
1601/*
1602 * Check to see if we can free the nlp back to the freelist.
1603 * If we are in the middle of using the nlp in the discovery state
1604 * machine, defer the free till we reach the end of the state machine.
1605 */
1606int
1607lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1608{
1609 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1610 spin_lock_irq(phba->host->host_lock);
1611 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1612 spin_unlock_irq(phba->host->host_lock);
1613 del_timer_sync(&ndlp->nlp_tmofunc);
1614 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1615 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1616
1617 }
1618
1619
1620 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
fdcebe28 1621 lpfc_cancel_retry_delay_tmo(phba, ndlp);
dea3101e 1622 }
1623
1624 if (ndlp->nlp_disc_refcnt) {
1625 spin_lock_irq(phba->host->host_lock);
1626 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1627 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1628 } else {
dea3101e 1629 lpfc_freenode(phba, ndlp);
1630 mempool_free( ndlp, phba->nlp_mem_pool);
1631 }
2fe165b6 1632 return 0;
dea3101e 1633}
1634
1635static int
1636lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1637{
1638 D_ID mydid;
1639 D_ID ndlpdid;
1640 D_ID matchdid;
1641
1642 if (did == Bcast_DID)
2fe165b6 1643 return 0;
dea3101e 1644
1645 if (ndlp->nlp_DID == 0) {
2fe165b6 1646 return 0;
dea3101e 1647 }
1648
1649 /* First check for Direct match */
1650 if (ndlp->nlp_DID == did)
2fe165b6 1651 return 1;
dea3101e 1652
1653 /* Next check for area/domain identically equals 0 match */
1654 mydid.un.word = phba->fc_myDID;
1655 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 1656 return 0;
dea3101e 1657 }
1658
1659 matchdid.un.word = did;
1660 ndlpdid.un.word = ndlp->nlp_DID;
1661 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1662 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1663 (mydid.un.b.area == matchdid.un.b.area)) {
1664 if ((ndlpdid.un.b.domain == 0) &&
1665 (ndlpdid.un.b.area == 0)) {
1666 if (ndlpdid.un.b.id)
2fe165b6 1667 return 1;
dea3101e 1668 }
2fe165b6 1669 return 0;
dea3101e 1670 }
1671
1672 matchdid.un.word = ndlp->nlp_DID;
1673 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1674 (mydid.un.b.area == ndlpdid.un.b.area)) {
1675 if ((matchdid.un.b.domain == 0) &&
1676 (matchdid.un.b.area == 0)) {
1677 if (matchdid.un.b.id)
2fe165b6 1678 return 1;
dea3101e 1679 }
1680 }
1681 }
2fe165b6 1682 return 0;
dea3101e 1683}
1684
1685/* Search for a nodelist entry on a specific list */
1686struct lpfc_nodelist *
1687lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1688{
1689 struct lpfc_nodelist *ndlp, *next_ndlp;
1690 uint32_t data1;
1691
66a9ed66 1692 spin_lock_irq(phba->host->host_lock);
dea3101e 1693 if (order & NLP_SEARCH_UNMAPPED) {
1694 list_for_each_entry_safe(ndlp, next_ndlp,
1695 &phba->fc_nlpunmap_list, nlp_listp) {
1696 if (lpfc_matchdid(phba, ndlp, did)) {
1697 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1698 ((uint32_t) ndlp->nlp_xri << 16) |
1699 ((uint32_t) ndlp->nlp_type << 8) |
1700 ((uint32_t) ndlp->nlp_rpi & 0xff));
1701 /* FIND node DID unmapped */
1702 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1703 "%d:0929 FIND node DID unmapped"
1704 " Data: x%p x%x x%x x%x\n",
1705 phba->brd_no,
1706 ndlp, ndlp->nlp_DID,
1707 ndlp->nlp_flag, data1);
66a9ed66 1708 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1709 return ndlp;
dea3101e 1710 }
1711 }
1712 }
1713
1714 if (order & NLP_SEARCH_MAPPED) {
1715 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1716 nlp_listp) {
1717 if (lpfc_matchdid(phba, ndlp, did)) {
1718
1719 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1720 ((uint32_t) ndlp->nlp_xri << 16) |
1721 ((uint32_t) ndlp->nlp_type << 8) |
1722 ((uint32_t) ndlp->nlp_rpi & 0xff));
1723 /* FIND node DID mapped */
1724 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1725 "%d:0930 FIND node DID mapped "
1726 "Data: x%p x%x x%x x%x\n",
1727 phba->brd_no,
1728 ndlp, ndlp->nlp_DID,
1729 ndlp->nlp_flag, data1);
66a9ed66 1730 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1731 return ndlp;
dea3101e 1732 }
1733 }
1734 }
1735
1736 if (order & NLP_SEARCH_PLOGI) {
1737 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1738 nlp_listp) {
1739 if (lpfc_matchdid(phba, ndlp, did)) {
1740
1741 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1742 ((uint32_t) ndlp->nlp_xri << 16) |
1743 ((uint32_t) ndlp->nlp_type << 8) |
1744 ((uint32_t) ndlp->nlp_rpi & 0xff));
1745 /* LOG change to PLOGI */
1746 /* FIND node DID plogi */
1747 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1748 "%d:0908 FIND node DID plogi "
1749 "Data: x%p x%x x%x x%x\n",
1750 phba->brd_no,
1751 ndlp, ndlp->nlp_DID,
1752 ndlp->nlp_flag, data1);
66a9ed66 1753 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1754 return ndlp;
dea3101e 1755 }
1756 }
1757 }
1758
1759 if (order & NLP_SEARCH_ADISC) {
1760 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1761 nlp_listp) {
1762 if (lpfc_matchdid(phba, ndlp, did)) {
1763
1764 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1765 ((uint32_t) ndlp->nlp_xri << 16) |
1766 ((uint32_t) ndlp->nlp_type << 8) |
1767 ((uint32_t) ndlp->nlp_rpi & 0xff));
1768 /* LOG change to ADISC */
1769 /* FIND node DID adisc */
1770 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1771 "%d:0931 FIND node DID adisc "
1772 "Data: x%p x%x x%x x%x\n",
1773 phba->brd_no,
1774 ndlp, ndlp->nlp_DID,
1775 ndlp->nlp_flag, data1);
fc6c12bc 1776 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1777 return ndlp;
dea3101e 1778 }
1779 }
1780 }
1781
1782 if (order & NLP_SEARCH_REGLOGIN) {
1783 list_for_each_entry_safe(ndlp, next_ndlp,
1784 &phba->fc_reglogin_list, nlp_listp) {
1785 if (lpfc_matchdid(phba, ndlp, did)) {
1786
1787 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1788 ((uint32_t) ndlp->nlp_xri << 16) |
1789 ((uint32_t) ndlp->nlp_type << 8) |
1790 ((uint32_t) ndlp->nlp_rpi & 0xff));
1791 /* LOG change to REGLOGIN */
1792 /* FIND node DID reglogin */
1793 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
dca9479b 1794 "%d:0901 FIND node DID reglogin"
dea3101e 1795 " Data: x%p x%x x%x x%x\n",
1796 phba->brd_no,
1797 ndlp, ndlp->nlp_DID,
1798 ndlp->nlp_flag, data1);
66a9ed66 1799 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1800 return ndlp;
dea3101e 1801 }
1802 }
1803 }
1804
1805 if (order & NLP_SEARCH_PRLI) {
1806 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1807 nlp_listp) {
1808 if (lpfc_matchdid(phba, ndlp, did)) {
1809
1810 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1811 ((uint32_t) ndlp->nlp_xri << 16) |
1812 ((uint32_t) ndlp->nlp_type << 8) |
1813 ((uint32_t) ndlp->nlp_rpi & 0xff));
1814 /* LOG change to PRLI */
1815 /* FIND node DID prli */
1816 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
dca9479b 1817 "%d:0902 FIND node DID prli "
dea3101e 1818 "Data: x%p x%x x%x x%x\n",
1819 phba->brd_no,
1820 ndlp, ndlp->nlp_DID,
1821 ndlp->nlp_flag, data1);
fc6c12bc 1822 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1823 return ndlp;
dea3101e 1824 }
1825 }
1826 }
1827
1828 if (order & NLP_SEARCH_NPR) {
1829 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1830 nlp_listp) {
1831 if (lpfc_matchdid(phba, ndlp, did)) {
1832
1833 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1834 ((uint32_t) ndlp->nlp_xri << 16) |
1835 ((uint32_t) ndlp->nlp_type << 8) |
1836 ((uint32_t) ndlp->nlp_rpi & 0xff));
1837 /* LOG change to NPR */
1838 /* FIND node DID npr */
1839 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
dca9479b 1840 "%d:0903 FIND node DID npr "
dea3101e 1841 "Data: x%p x%x x%x x%x\n",
1842 phba->brd_no,
1843 ndlp, ndlp->nlp_DID,
1844 ndlp->nlp_flag, data1);
66a9ed66 1845 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1846 return ndlp;
dea3101e 1847 }
1848 }
1849 }
1850
1851 if (order & NLP_SEARCH_UNUSED) {
1852 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1853 nlp_listp) {
1854 if (lpfc_matchdid(phba, ndlp, did)) {
1855
1856 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1857 ((uint32_t) ndlp->nlp_xri << 16) |
1858 ((uint32_t) ndlp->nlp_type << 8) |
1859 ((uint32_t) ndlp->nlp_rpi & 0xff));
1860 /* LOG change to UNUSED */
1861 /* FIND node DID unused */
1862 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
dca9479b 1863 "%d:0905 FIND node DID unused "
dea3101e 1864 "Data: x%p x%x x%x x%x\n",
1865 phba->brd_no,
1866 ndlp, ndlp->nlp_DID,
1867 ndlp->nlp_flag, data1);
66a9ed66 1868 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1869 return ndlp;
dea3101e 1870 }
1871 }
1872 }
1873
66a9ed66
JW		 1874 spin_unlock_irq(phba->host->host_lock);
1875
dea3101e 1876 /* FIND node did <did> NOT FOUND */
1877 lpfc_printf_log(phba,
1878 KERN_INFO,
1879 LOG_NODE,
1880 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1881 phba->brd_no, did, order);
1882
1883 /* no match found */
1884 return NULL;
1885}
1886
1887struct lpfc_nodelist *
1888lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1889{
1890 struct lpfc_nodelist *ndlp;
1891 uint32_t flg;
1892
c9f8735b
JW		 1893 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1894 if (!ndlp) {
1895 if ((phba->fc_flag & FC_RSCN_MODE) &&
dea3101e 1896 ((lpfc_rscn_payload_check(phba, did) == 0)))
1897 return NULL;
1898 ndlp = (struct lpfc_nodelist *)
1899 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1900 if (!ndlp)
1901 return NULL;
1902 lpfc_nlp_init(phba, ndlp, did);
1903 ndlp->nlp_state = NLP_STE_NPR_NODE;
1904 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1905 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1906 return ndlp;
1907 }
c9f8735b 1908 if (phba->fc_flag & FC_RSCN_MODE) {
dea3101e 1909 if (lpfc_rscn_payload_check(phba, did)) {
1910 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
c9f8735b
JW		 1911
1912 /* Since this node is marked for discovery,
1913 * delay timeout is not needed.
1914 */
fdcebe28
JS		 1915 if (ndlp->nlp_flag & NLP_DELAY_TMO)
1916 lpfc_cancel_retry_delay_tmo(phba, ndlp);
071fbd3d 1917 } else
dea3101e 1918 ndlp = NULL;
2fe165b6 1919 } else {
dea3101e 1920 flg = ndlp->nlp_flag & NLP_LIST_MASK;
c9f8735b 1921 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
dea3101e 1922 return NULL;
dea3101e 1923 ndlp->nlp_state = NLP_STE_NPR_NODE;
1924 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1925 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1926 }
1927 return ndlp;
1928}
1929
1930/* Build a list of nodes to discover based on the loopmap */
1931void
1932lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1933{
1934 int j;
1935 uint32_t alpa, index;
1936
1937 if (phba->hba_state <= LPFC_LINK_DOWN) {
1938 return;
1939 }
1940 if (phba->fc_topology != TOPOLOGY_LOOP) {
1941 return;
1942 }
1943
1944 /* Check for loop map present or not */
1945 if (phba->alpa_map[0]) {
1946 for (j = 1; j <= phba->alpa_map[0]; j++) {
1947 alpa = phba->alpa_map[j];
1948
1949 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1950 continue;
1951 }
1952 lpfc_setup_disc_node(phba, alpa);
1953 }
1954 } else {
1955 /* No alpamap, so try all alpa's */
1956 for (j = 0; j < FC_MAXLOOP; j++) {
1957 /* If cfg_scan_down is set, start from highest
1958 * ALPA (0xef) to lowest (0x1).
1959 */
1960 if (phba->cfg_scan_down)
1961 index = j;
1962 else
1963 index = FC_MAXLOOP - j - 1;
1964 alpa = lpfcAlpaArray[index];
1965 if ((phba->fc_myDID & 0xff) == alpa) {
1966 continue;
1967 }
1968
1969 lpfc_setup_disc_node(phba, alpa);
1970 }
1971 }
1972 return;
1973}
1974
1975/* Start Link up / RSCN discovery on NPR list */
1976void
1977lpfc_disc_start(struct lpfc_hba * phba)
1978{
1979 struct lpfc_sli *psli;
1980 LPFC_MBOXQ_t *mbox;
1981 struct lpfc_nodelist *ndlp, *next_ndlp;
1982 uint32_t did_changed, num_sent;
1983 uint32_t clear_la_pending;
1984 int rc;
1985
1986 psli = &phba->sli;
1987
1988 if (phba->hba_state <= LPFC_LINK_DOWN) {
1989 return;
1990 }
1991 if (phba->hba_state == LPFC_CLEAR_LA)
1992 clear_la_pending = 1;
1993 else
1994 clear_la_pending = 0;
1995
1996 if (phba->hba_state < LPFC_HBA_READY) {
1997 phba->hba_state = LPFC_DISC_AUTH;
1998 }
1999 lpfc_set_disctmo(phba);
2000
2001 if (phba->fc_prevDID == phba->fc_myDID) {
2002 did_changed = 0;
2003 } else {
2004 did_changed = 1;
2005 }
2006 phba->fc_prevDID = phba->fc_myDID;
2007 phba->num_disc_nodes = 0;
2008
2009 /* Start Discovery state <hba_state> */
2010 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2011 "%d:0202 Start Discovery hba state x%x "
2012 "Data: x%x x%x x%x\n",
2013 phba->brd_no, phba->hba_state, phba->fc_flag,
2014 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2015
2016 /* If our did changed, we MUST do PLOGI */
2017 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2018 nlp_listp) {
2019 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2020 if (did_changed) {
2021 spin_lock_irq(phba->host->host_lock);
2022 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2023 spin_unlock_irq(phba->host->host_lock);
2024 }
2025 }
2026 }
2027
2028 /* First do ADISCs - if any */
2029 num_sent = lpfc_els_disc_adisc(phba);
2030
2031 if (num_sent)
2032 return;
2033
2034 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2035 /* If we get here, there is nothing to ADISC */
2036 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2037 phba->hba_state = LPFC_CLEAR_LA;
2038 lpfc_clear_la(phba, mbox);
2039 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2040 rc = lpfc_sli_issue_mbox(phba, mbox,
2041 (MBX_NOWAIT | MBX_STOP_IOCB));
2042 if (rc == MBX_NOT_FINISHED) {
2043 mempool_free( mbox, phba->mbox_mem_pool);
2044 lpfc_disc_flush_list(phba);
2045 psli->ring[(psli->ip_ring)].flag &=
2046 ~LPFC_STOP_IOCB_EVENT;
2047 psli->ring[(psli->fcp_ring)].flag &=
2048 ~LPFC_STOP_IOCB_EVENT;
2049 psli->ring[(psli->next_ring)].flag &=
2050 ~LPFC_STOP_IOCB_EVENT;
2051 phba->hba_state = LPFC_HBA_READY;
2052 }
2053 }
2054 } else {
2055 /* Next do PLOGIs - if any */
2056 num_sent = lpfc_els_disc_plogi(phba);
2057
2058 if (num_sent)
2059 return;
2060
2061 if (phba->fc_flag & FC_RSCN_MODE) {
2062 /* Check to see if more RSCNs came in while we
2063 * were processing this one.
2064 */
2065 if ((phba->fc_rscn_id_cnt == 0) &&
2066 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2067 spin_lock_irq(phba->host->host_lock);
2068 phba->fc_flag &= ~FC_RSCN_MODE;
2069 spin_unlock_irq(phba->host->host_lock);
2fe165b6 2070 } else
dea3101e 2071 lpfc_els_handle_rscn(phba);
2072 }
2073 }
2074 return;
2075}
2076
2077/*
2078 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2079 * ring the match the sppecified nodelist.
2080 */
2081static void
2082lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2083{
2084 struct lpfc_sli *psli;
2085 IOCB_t *icmd;
2086 struct lpfc_iocbq *iocb, *next_iocb;
2087 struct lpfc_sli_ring *pring;
2088 struct lpfc_dmabuf *mp;
2089
2090 psli = &phba->sli;
2091 pring = &psli->ring[LPFC_ELS_RING];
2092
2093 /* Error matching iocb on txq or txcmplq
2094 * First check the txq.
2095 */
2096 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2097 if (iocb->context1 != ndlp) {
2098 continue;
2099 }
2100 icmd = &iocb->iocb;
2101 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2102 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2103
2104 list_del(&iocb->list);
2105 pring->txq_cnt--;
2106 lpfc_els_free_iocb(phba, iocb);
2107 }
2108 }
2109
2110 /* Next check the txcmplq */
2111 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2112 if (iocb->context1 != ndlp) {
2113 continue;
2114 }
2115 icmd = &iocb->iocb;
2116 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2117 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2118
2119 iocb->iocb_cmpl = NULL;
2120 /* context2 = cmd, context2->next = rsp, context3 =
2121 bpl */
2122 if (iocb->context2) {
2123 /* Free the response IOCB before handling the
2124 command. */
2125
2126 mp = (struct lpfc_dmabuf *) (iocb->context2);
2127 mp = list_get_first(&mp->list,
2128 struct lpfc_dmabuf,
2129 list);
2130 if (mp) {
2131 /* Delay before releasing rsp buffer to
2132 * give UNREG mbox a chance to take
2133 * effect.
2134 */
2135 list_add(&mp->list,
2136 &phba->freebufList);
2137 }
2138 lpfc_mbuf_free(phba,
2139 ((struct lpfc_dmabuf *)
2140 iocb->context2)->virt,
2141 ((struct lpfc_dmabuf *)
2142 iocb->context2)->phys);
2143 kfree(iocb->context2);
2144 }
2145
2146 if (iocb->context3) {
2147 lpfc_mbuf_free(phba,
2148 ((struct lpfc_dmabuf *)
2149 iocb->context3)->virt,
2150 ((struct lpfc_dmabuf *)
2151 iocb->context3)->phys);
2152 kfree(iocb->context3);
2153 }
2154 }
2155 }
2156
2157 return;
2158}
2159
2160void
2161lpfc_disc_flush_list(struct lpfc_hba * phba)
2162{
2163 struct lpfc_nodelist *ndlp, *next_ndlp;
2164
2165 if (phba->fc_plogi_cnt) {
2166 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2167 nlp_listp) {
2168 lpfc_free_tx(phba, ndlp);
2169 lpfc_nlp_remove(phba, ndlp);
2170 }
2171 }
2172 if (phba->fc_adisc_cnt) {
2173 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2174 nlp_listp) {
2175 lpfc_free_tx(phba, ndlp);
2176 lpfc_nlp_remove(phba, ndlp);
2177 }
2178 }
2179 return;
2180}
2181
2182/*****************************************************************************/
2183/*
2184 * NAME: lpfc_disc_timeout
2185 *
2186 * FUNCTION: Fibre Channel driver discovery timeout routine.
2187 *
2188 * EXECUTION ENVIRONMENT: interrupt only
2189 *
2190 * CALLED FROM:
2191 * Timer function
2192 *
2193 * RETURNS:
2194 * none
2195 */
2196/*****************************************************************************/
2197void
2198lpfc_disc_timeout(unsigned long ptr)
2199{
2200 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2201 unsigned long flags = 0;
2202
2203 if (unlikely(!phba))
2204 return;
2205
2206 spin_lock_irqsave(phba->host->host_lock, flags);
2207 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2208 phba->work_hba_events |= WORKER_DISC_TMO;
2209 if (phba->work_wait)
2210 wake_up(phba->work_wait);
2211 }
2212 spin_unlock_irqrestore(phba->host->host_lock, flags);
2213 return;
2214}
2215
2216static void
2217lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2218{
2219 struct lpfc_sli *psli;
c9f8735b 2220 struct lpfc_nodelist *ndlp, *next_ndlp;
dea3101e 2221 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2222 int rc, clrlaerr = 0;
2223
2224 if (unlikely(!phba))
2225 return;
2226
2227 if (!(phba->fc_flag & FC_DISC_TMO))
2228 return;
2229
2230 psli = &phba->sli;
2231
2232 spin_lock_irq(phba->host->host_lock);
2233 phba->fc_flag &= ~FC_DISC_TMO;
2234 spin_unlock_irq(phba->host->host_lock);
2235
2236 switch (phba->hba_state) {
2237
2238 case LPFC_LOCAL_CFG_LINK:
2239 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2240 /* FAN timeout */
2241 lpfc_printf_log(phba,
2242 KERN_WARNING,
2243 LOG_DISCOVERY,
2244 "%d:0221 FAN timeout\n",
2245 phba->brd_no);
2246
c9f8735b
JW		 2247 /* Start discovery by sending FLOGI, clean up old rpis */
2248 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2249 nlp_listp) {
2250 if (ndlp->nlp_type & NLP_FABRIC) {
2251 /* Clean up the ndlp on Fabric connections */
2252 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2fe165b6 2253 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2254 /* Fail outstanding IO now since device
2255 * is marked for PLOGI.
2256 */
2257 lpfc_unreg_rpi(phba, ndlp);
2258 }
2259 }
dea3101e 2260 phba->hba_state = LPFC_FLOGI;
2261 lpfc_set_disctmo(phba);
2262 lpfc_initial_flogi(phba);
2263 break;
2264
2265 case LPFC_FLOGI:
2266 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2267 /* Initial FLOGI timeout */
2268 lpfc_printf_log(phba,
2269 KERN_ERR,
2270 LOG_DISCOVERY,
2271 "%d:0222 Initial FLOGI timeout\n",
2272 phba->brd_no);
2273
2274 /* Assume no Fabric and go on with discovery.
2275 * Check for outstanding ELS FLOGI to abort.
2276 */
2277
2278 /* FLOGI failed, so just use loop map to make discovery list */
2279 lpfc_disc_list_loopmap(phba);
2280
2281 /* Start discovery */
2282 lpfc_disc_start(phba);
2283 break;
2284
2285 case LPFC_FABRIC_CFG_LINK:
2286 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2287 NameServer login */
2288 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2289 "%d:0223 Timeout while waiting for NameServer "
2290 "login\n", phba->brd_no);
2291
2292 /* Next look for NameServer ndlp */
2293 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2294 if (ndlp)
2295 lpfc_nlp_remove(phba, ndlp);
2296 /* Start discovery */
2297 lpfc_disc_start(phba);
2298 break;
2299
2300 case LPFC_NS_QRY:
2301 /* Check for wait for NameServer Rsp timeout */
2302 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2303 "%d:0224 NameServer Query timeout "
2304 "Data: x%x x%x\n",
2305 phba->brd_no,
2306 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2307
2308 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2309 NameServer_DID);
2310 if (ndlp) {
2311 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2312 /* Try it one more time */
2313 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2314 if (rc == 0)
2315 break;
2316 }
2317 phba->fc_ns_retry = 0;
2318 }
2319
2320 /* Nothing to authenticate, so CLEAR_LA right now */
2321 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2322 if (!clearlambox) {
2323 clrlaerr = 1;
2324 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2325 "%d:0226 Device Discovery "
2326 "completion error\n",
2327 phba->brd_no);
2328 phba->hba_state = LPFC_HBA_ERROR;
2329 break;
2330 }
2331
2332 phba->hba_state = LPFC_CLEAR_LA;
2333 lpfc_clear_la(phba, clearlambox);
2334 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2335 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2336 (MBX_NOWAIT | MBX_STOP_IOCB));
2337 if (rc == MBX_NOT_FINISHED) {
2338 mempool_free(clearlambox, phba->mbox_mem_pool);
2339 clrlaerr = 1;
2340 break;
2341 }
2342
2343 /* Setup and issue mailbox INITIALIZE LINK command */
2344 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2345 if (!initlinkmbox) {
2346 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dca9479b 2347 "%d:0206 Device Discovery "
dea3101e 2348 "completion error\n",
2349 phba->brd_no);
2350 phba->hba_state = LPFC_HBA_ERROR;
2351 break;
2352 }
2353
2354 lpfc_linkdown(phba);
2355 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2356 phba->cfg_link_speed);
2357 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2358 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2359 (MBX_NOWAIT | MBX_STOP_IOCB));
2360 if (rc == MBX_NOT_FINISHED)
2361 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2362
2363 break;
2364
2365 case LPFC_DISC_AUTH:
2366 /* Node Authentication timeout */
2367 lpfc_printf_log(phba,
2368 KERN_ERR,
2369 LOG_DISCOVERY,
2370 "%d:0227 Node Authentication timeout\n",
2371 phba->brd_no);
2372 lpfc_disc_flush_list(phba);
2373 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2374 if (!clearlambox) {
2375 clrlaerr = 1;
2376 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dca9479b 2377 "%d:0207 Device Discovery "
dea3101e 2378 "completion error\n",
2379 phba->brd_no);
2380 phba->hba_state = LPFC_HBA_ERROR;
2381 break;
2382 }
2383 phba->hba_state = LPFC_CLEAR_LA;
2384 lpfc_clear_la(phba, clearlambox);
2385 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2386 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2387 (MBX_NOWAIT | MBX_STOP_IOCB));
2388 if (rc == MBX_NOT_FINISHED) {
2389 mempool_free(clearlambox, phba->mbox_mem_pool);
2390 clrlaerr = 1;
2391 }
2392 break;
2393
2394 case LPFC_CLEAR_LA:
2395 /* CLEAR LA timeout */
2396 lpfc_printf_log(phba,
2397 KERN_ERR,
2398 LOG_DISCOVERY,
2399 "%d:0228 CLEAR LA timeout\n",
2400 phba->brd_no);
2401 clrlaerr = 1;
2402 break;
2403
2404 case LPFC_HBA_READY:
2405 if (phba->fc_flag & FC_RSCN_MODE) {
2406 lpfc_printf_log(phba,
2407 KERN_ERR,
2408 LOG_DISCOVERY,
2409 "%d:0231 RSCN timeout Data: x%x x%x\n",
2410 phba->brd_no,
2411 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2412
2413 /* Cleanup any outstanding ELS commands */
2414 lpfc_els_flush_cmd(phba);
2415
2416 lpfc_els_flush_rscn(phba);
2417 lpfc_disc_flush_list(phba);
2418 }
2419 break;
2420 }
2421
2422 if (clrlaerr) {
2423 lpfc_disc_flush_list(phba);
2424 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2425 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2426 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2427 phba->hba_state = LPFC_HBA_READY;
2428 }
2429
2430 return;
2431}
2432
2433static void
2434lpfc_nodev_timeout(unsigned long ptr)
2435{
2436 struct lpfc_hba *phba;
2437 struct lpfc_nodelist *ndlp;
2438 unsigned long iflag;
2439 struct lpfc_work_evt *evtp;
2440
2441 ndlp = (struct lpfc_nodelist *)ptr;
2442 phba = ndlp->nlp_phba;
2443 evtp = &ndlp->nodev_timeout_evt;
2444 spin_lock_irqsave(phba->host->host_lock, iflag);
2445
2446 if (!list_empty(&evtp->evt_listp)) {
2447 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2448 return;
2449 }
2450 evtp->evt_arg1 = ndlp;
2451 evtp->evt = LPFC_EVT_NODEV_TMO;
2452 list_add_tail(&evtp->evt_listp, &phba->work_list);
2453 if (phba->work_wait)
2454 wake_up(phba->work_wait);
2455
2456 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2457 return;
2458}
2459
2460
2461/*
2462 * This routine handles processing a NameServer REG_LOGIN mailbox
2463 * command upon completion. It is setup in the LPFC_MBOXQ
2464 * as the completion routine when the command is
2465 * handed off to the SLI layer.
2466 */
2467void
2468lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2469{
2470 struct lpfc_sli *psli;
2471 MAILBOX_t *mb;
2472 struct lpfc_dmabuf *mp;
2473 struct lpfc_nodelist *ndlp;
2474
2475 psli = &phba->sli;
2476 mb = &pmb->mb;
2477
2478 ndlp = (struct lpfc_nodelist *) pmb->context2;
2479 mp = (struct lpfc_dmabuf *) (pmb->context1);
2480
2481 pmb->context1 = NULL;
2482
dea3101e 2483 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2484 ndlp->nlp_type |= NLP_FABRIC;
2485 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2486 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2487
2488 /* Start issuing Fabric-Device Management Interface (FDMI)
2489 * command to 0xfffffa (FDMI well known port)
2490 */
2491 if (phba->cfg_fdmi_on == 1) {
2492 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2493 } else {
2494 /*
2495 * Delay issuing FDMI command if fdmi-on=2
2496 * (supporting RPA/hostnmae)
2497 */
2498 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2499 }
2500
2501 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2502 kfree(mp);
2503 mempool_free( pmb, phba->mbox_mem_pool);
2504
2505 return;
2506}
2507
2508/*
21568f53
JSEC		 2509 * This routine looks up the ndlp lists
2510 * for the given RPI. If rpi found
dea3101e 2511 * it return the node list pointer
21568f53 2512 * else return NULL.
dea3101e 2513 */
2514struct lpfc_nodelist *
2515lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2516{
21568f53
JSEC		 2517 struct lpfc_nodelist *ndlp;
2518 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2519 &phba->fc_nlpmap_list,
2520 &phba->fc_plogi_list,
2521 &phba->fc_adisc_list,
2522 &phba->fc_reglogin_list};
2523 int i;
dea3101e 2524
66a9ed66 2525 spin_lock_irq(phba->host->host_lock);
21568f53
JSEC		 2526 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2527 list_for_each_entry(ndlp, lists[i], nlp_listp)
66a9ed66
JW		 2528 if (ndlp->nlp_rpi == rpi) {
2529 spin_unlock_irq(phba->host->host_lock);
2fe165b6 2530 return ndlp;
66a9ed66
JW		 2531 }
2532 spin_unlock_irq(phba->host->host_lock);
21568f53 2533 return NULL;
dea3101e 2534}
2535
488d1469
JS		 2536/*
2537 * This routine looks up the ndlp lists
2538 * for the given WWPN. If WWPN found
2539 * it return the node list pointer
2540 * else return NULL.
2541 */
2542struct lpfc_nodelist *
2543lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2544 struct lpfc_name * wwpn)
2545{
2546 struct lpfc_nodelist *ndlp;
2547 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2548 &phba->fc_nlpmap_list,
2549 &phba->fc_npr_list,
2550 &phba->fc_plogi_list,
2551 &phba->fc_adisc_list,
2552 &phba->fc_reglogin_list,
2553 &phba->fc_prli_list};
2554 uint32_t search[]={NLP_SEARCH_UNMAPPED,
2555 NLP_SEARCH_MAPPED,
2556 NLP_SEARCH_NPR,
2557 NLP_SEARCH_PLOGI,
2558 NLP_SEARCH_ADISC,
2559 NLP_SEARCH_REGLOGIN,
2560 NLP_SEARCH_PRLI};
2561 int i;
2562
2563 spin_lock_irq(phba->host->host_lock);
2564 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2565 if (!(order & search[i]))
2566 continue;
2567 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2568 if (memcmp(&ndlp->nlp_portname, wwpn,
2569 sizeof(struct lpfc_name)) == 0) {
2570 spin_unlock_irq(phba->host->host_lock);
2571 return ndlp;
2572 }
2573 }
2574 }
2575 spin_unlock_irq(phba->host->host_lock);
2576 return NULL;
2577}
2578
dea3101e 2579void
2580lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2581 uint32_t did)
2582{
2583 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2584 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2585 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2586 init_timer(&ndlp->nlp_tmofunc);
2587 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2588 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2589 init_timer(&ndlp->nlp_delayfunc);
2590 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2591 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2592 ndlp->nlp_DID = did;
2593 ndlp->nlp_phba = phba;
2594 ndlp->nlp_sid = NLP_NO_SID;
2595 return;
2596}
Linux kernel - Deliverables
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