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[PATCH] lpfc 8.1.3: Fix deadlock in lpfc_fdmi_tmo_handler
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e
JB		 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
JB		 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
JB		 20 *******************************************************************/
21
dea3101e
JB		 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
JB		 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{
6e8215e4 62 int warn_on = 0;
dea3101e
JB		 63
64 spin_lock_irq(phba->host->host_lock);
65 if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
66 spin_unlock_irq(phba->host->host_lock);
67 return;
68 }
69
70 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
71
72 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 73 warn_on = 1;
dea3101e
JB		 74 /* flush the target */
75 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
76 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
77 }
78 spin_unlock_irq(phba->host->host_lock);
79
6e8215e4
JSEC		 80 if (warn_on) {
81 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
82 "%d:0203 Nodev timeout on NPort x%x "
83 "Data: x%x x%x x%x\n",
84 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
85 ndlp->nlp_state, ndlp->nlp_rpi);
86 } else {
87 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
88 "%d:0204 Nodev timeout on NPort x%x "
89 "Data: x%x x%x x%x\n",
90 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
91 ndlp->nlp_state, ndlp->nlp_rpi);
92 }
93
dea3101e
JB		 94 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
95 return;
96}
97
98static void
99lpfc_work_list_done(struct lpfc_hba * phba)
100{
101 struct lpfc_work_evt *evtp = NULL;
102 struct lpfc_nodelist *ndlp;
103 int free_evt;
104
105 spin_lock_irq(phba->host->host_lock);
106 while(!list_empty(&phba->work_list)) {
107 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
108 evt_listp);
109 spin_unlock_irq(phba->host->host_lock);
110 free_evt = 1;
2fe165b6 111 switch (evtp->evt) {
dea3101e
JB		 112 case LPFC_EVT_NODEV_TMO:
113 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
114 lpfc_process_nodev_timeout(phba, ndlp);
115 free_evt = 0;
116 break;
117 case LPFC_EVT_ELS_RETRY:
118 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
119 lpfc_els_retry_delay_handler(ndlp);
120 free_evt = 0;
121 break;
122 case LPFC_EVT_ONLINE:
41415862
JW		 123 if (phba->hba_state < LPFC_LINK_DOWN)
124 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
125 else
126 *(int *)(evtp->evt_arg1) = 0;
dea3101e
JB		 127 complete((struct completion *)(evtp->evt_arg2));
128 break;
129 case LPFC_EVT_OFFLINE:
41415862
JW		 130 if (phba->hba_state >= LPFC_LINK_DOWN)
131 lpfc_offline(phba);
132 lpfc_sli_brdrestart(phba);
133 *(int *)(evtp->evt_arg1) =
134 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
135 complete((struct completion *)(evtp->evt_arg2));
136 break;
137 case LPFC_EVT_WARM_START:
138 if (phba->hba_state >= LPFC_LINK_DOWN)
139 lpfc_offline(phba);
140 lpfc_sli_brdreset(phba);
141 lpfc_hba_down_post(phba);
142 *(int *)(evtp->evt_arg1) =
143 lpfc_sli_brdready(phba, HS_MBRDY);
144 complete((struct completion *)(evtp->evt_arg2));
145 break;
146 case LPFC_EVT_KILL:
147 if (phba->hba_state >= LPFC_LINK_DOWN)
148 lpfc_offline(phba);
149 *(int *)(evtp->evt_arg1) = lpfc_sli_brdkill(phba);
dea3101e
JB		 150 complete((struct completion *)(evtp->evt_arg2));
151 break;
152 }
153 if (free_evt)
154 kfree(evtp);
155 spin_lock_irq(phba->host->host_lock);
156 }
157 spin_unlock_irq(phba->host->host_lock);
158
159}
160
161static void
162lpfc_work_done(struct lpfc_hba * phba)
163{
164 struct lpfc_sli_ring *pring;
165 int i;
166 uint32_t ha_copy;
167 uint32_t control;
168 uint32_t work_hba_events;
169
170 spin_lock_irq(phba->host->host_lock);
171 ha_copy = phba->work_ha;
172 phba->work_ha = 0;
173 work_hba_events=phba->work_hba_events;
174 spin_unlock_irq(phba->host->host_lock);
175
2fe165b6 176 if (ha_copy & HA_ERATT)
dea3101e
JB		 177 lpfc_handle_eratt(phba);
178
2fe165b6 179 if (ha_copy & HA_MBATT)
dea3101e
JB		 180 lpfc_sli_handle_mb_event(phba);
181
2fe165b6 182 if (ha_copy & HA_LATT)
dea3101e
JB		 183 lpfc_handle_latt(phba);
184
185 if (work_hba_events & WORKER_DISC_TMO)
186 lpfc_disc_timeout_handler(phba);
187
188 if (work_hba_events & WORKER_ELS_TMO)
189 lpfc_els_timeout_handler(phba);
190
191 if (work_hba_events & WORKER_MBOX_TMO)
192 lpfc_mbox_timeout_handler(phba);
193
194 if (work_hba_events & WORKER_FDMI_TMO)
195 lpfc_fdmi_tmo_handler(phba);
196
197 spin_lock_irq(phba->host->host_lock);
198 phba->work_hba_events &= ~work_hba_events;
199 spin_unlock_irq(phba->host->host_lock);
200
201 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
202 pring = &phba->sli.ring[i];
203 if ((ha_copy & HA_RXATT)
204 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
205 if (pring->flag & LPFC_STOP_IOCB_MASK) {
206 pring->flag |= LPFC_DEFERRED_RING_EVENT;
207 } else {
208 lpfc_sli_handle_slow_ring_event(phba, pring,
209 (ha_copy &
210 HA_RXMASK));
211 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
212 }
213 /*
214 * Turn on Ring interrupts
215 */
216 spin_lock_irq(phba->host->host_lock);
217 control = readl(phba->HCregaddr);
218 control |= (HC_R0INT_ENA << i);
219 writel(control, phba->HCregaddr);
220 readl(phba->HCregaddr); /* flush */
221 spin_unlock_irq(phba->host->host_lock);
222 }
223 }
224
225 lpfc_work_list_done (phba);
226
227}
228
229static int
230check_work_wait_done(struct lpfc_hba *phba) {
231
232 spin_lock_irq(phba->host->host_lock);
233 if (phba->work_ha ||
234 phba->work_hba_events ||
235 (!list_empty(&phba->work_list)) ||
236 kthread_should_stop()) {
237 spin_unlock_irq(phba->host->host_lock);
238 return 1;
239 } else {
240 spin_unlock_irq(phba->host->host_lock);
241 return 0;
242 }
243}
244
245int
246lpfc_do_work(void *p)
247{
248 struct lpfc_hba *phba = p;
249 int rc;
250 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
251
252 set_user_nice(current, -20);
253 phba->work_wait = &work_waitq;
254
255 while (1) {
256
257 rc = wait_event_interruptible(work_waitq,
258 check_work_wait_done(phba));
259 BUG_ON(rc);
260
261 if (kthread_should_stop())
262 break;
263
264 lpfc_work_done(phba);
265
266 }
267 phba->work_wait = NULL;
268 return 0;
269}
270
271/*
272 * This is only called to handle FC worker events. Since this a rare
273 * occurance, we allocate a struct lpfc_work_evt structure here instead of
274 * embedding it in the IOCB.
275 */
276int
277lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
278 uint32_t evt)
279{
280 struct lpfc_work_evt *evtp;
281
282 /*
283 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
284 * be queued to worker thread for processing
285 */
286 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
287 if (!evtp)
288 return 0;
289
290 evtp->evt_arg1 = arg1;
291 evtp->evt_arg2 = arg2;
292 evtp->evt = evt;
293
294 list_add_tail(&evtp->evt_listp, &phba->work_list);
295 spin_lock_irq(phba->host->host_lock);
296 if (phba->work_wait)
297 wake_up(phba->work_wait);
298 spin_unlock_irq(phba->host->host_lock);
299
300 return 1;
301}
302
303int
304lpfc_linkdown(struct lpfc_hba * phba)
305{
306 struct lpfc_sli *psli;
307 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b 308 struct list_head *listp, *node_list[7];
dea3101e
JB		 309 LPFC_MBOXQ_t *mb;
310 int rc, i;
311
312 psli = &phba->sli;
c9f8735b 313 /* sysfs or selective reset may call this routine to clean up */
5024ab17
JW		 314 if (phba->hba_state >= LPFC_LINK_DOWN) {
315 if (phba->hba_state == LPFC_LINK_DOWN)
316 return 0;
317
c9f8735b
JW		 318 spin_lock_irq(phba->host->host_lock);
319 phba->hba_state = LPFC_LINK_DOWN;
320 spin_unlock_irq(phba->host->host_lock);
321 }
dea3101e
JB		 322
323 /* Clean up any firmware default rpi's */
324 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
325 lpfc_unreg_did(phba, 0xffffffff, mb);
326 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
327 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
328 == MBX_NOT_FINISHED) {
329 mempool_free( mb, phba->mbox_mem_pool);
330 }
331 }
332
333 /* Cleanup any outstanding RSCN activity */
334 lpfc_els_flush_rscn(phba);
335
336 /* Cleanup any outstanding ELS commands */
337 lpfc_els_flush_cmd(phba);
338
339 /* Issue a LINK DOWN event to all nodes */
340 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
341 node_list[1] = &phba->fc_nlpmap_list;
342 node_list[2] = &phba->fc_nlpunmap_list;
343 node_list[3] = &phba->fc_prli_list;
344 node_list[4] = &phba->fc_reglogin_list;
345 node_list[5] = &phba->fc_adisc_list;
346 node_list[6] = &phba->fc_plogi_list;
347 for (i = 0; i < 7; i++) {
348 listp = node_list[i];
349 if (list_empty(listp))
350 continue;
351
352 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
c9f8735b
JW		 353
354 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
355 NLP_EVT_DEVICE_RECOVERY);
356
357 /* Check config parameter use-adisc or FCP-2 */
358 if ((rc != NLP_STE_FREED_NODE) &&
359 (phba->cfg_use_adisc == 0) &&
2fe165b6 360 !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
c9f8735b
JW		 361 /* We know we will have to relogin, so
362 * unreglogin the rpi right now to fail
363 * any outstanding I/Os quickly.
364 */
365 lpfc_unreg_rpi(phba, ndlp);
dea3101e
JB		 366 }
367 }
368 }
369
370 /* free any ndlp's on unused list */
371 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
372 nlp_listp) {
373 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
374 }
375
376 /* Setup myDID for link up if we are in pt2pt mode */
377 if (phba->fc_flag & FC_PT2PT) {
378 phba->fc_myDID = 0;
379 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
380 lpfc_config_link(phba, mb);
381 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
382 if (lpfc_sli_issue_mbox
383 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
384 == MBX_NOT_FINISHED) {
385 mempool_free( mb, phba->mbox_mem_pool);
386 }
387 }
388 spin_lock_irq(phba->host->host_lock);
389 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
390 spin_unlock_irq(phba->host->host_lock);
391 }
392 spin_lock_irq(phba->host->host_lock);
393 phba->fc_flag &= ~FC_LBIT;
394 spin_unlock_irq(phba->host->host_lock);
395
396 /* Turn off discovery timer if its running */
397 lpfc_can_disctmo(phba);
398
399 /* Must process IOCBs on all rings to handle ABORTed I/Os */
2fe165b6 400 return 0;
dea3101e
JB		 401}
402
403static int
404lpfc_linkup(struct lpfc_hba * phba)
405{
406 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b
JW		 407 struct list_head *listp, *node_list[7];
408 int i;
dea3101e
JB		 409
410 spin_lock_irq(phba->host->host_lock);
411 phba->hba_state = LPFC_LINK_UP;
412 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
413 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
414 phba->fc_flag |= FC_NDISC_ACTIVE;
415 phba->fc_ns_retry = 0;
416 spin_unlock_irq(phba->host->host_lock);
417
418
c9f8735b
JW		 419 node_list[0] = &phba->fc_plogi_list;
420 node_list[1] = &phba->fc_adisc_list;
421 node_list[2] = &phba->fc_reglogin_list;
422 node_list[3] = &phba->fc_prli_list;
423 node_list[4] = &phba->fc_nlpunmap_list;
424 node_list[5] = &phba->fc_nlpmap_list;
425 node_list[6] = &phba->fc_npr_list;
426 for (i = 0; i < 7; i++) {
427 listp = node_list[i];
428 if (list_empty(listp))
429 continue;
430
431 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
432 if (phba->fc_flag & FC_LBIT) {
433 if (ndlp->nlp_type & NLP_FABRIC) {
434 /* On Linkup its safe to clean up the
435 * ndlp from Fabric connections.
436 */
437 lpfc_nlp_list(phba, ndlp,
438 NLP_UNUSED_LIST);
439 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
440 /* Fail outstanding IO now since device
441 * is marked for PLOGI.
442 */
443 lpfc_unreg_rpi(phba, ndlp);
444 }
445 }
dea3101e
JB		 446 }
447 }
448
449 /* free any ndlp's on unused list */
450 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
451 nlp_listp) {
452 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
453 }
454
455 return 0;
456}
457
458/*
459 * This routine handles processing a CLEAR_LA mailbox
460 * command upon completion. It is setup in the LPFC_MBOXQ
461 * as the completion routine when the command is
462 * handed off to the SLI layer.
463 */
464void
465lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
466{
467 struct lpfc_sli *psli;
468 MAILBOX_t *mb;
469 uint32_t control;
470
471 psli = &phba->sli;
472 mb = &pmb->mb;
473 /* Since we don't do discovery right now, turn these off here */
474 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
475 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
476 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
477
478 /* Check for error */
479 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
480 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
481 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
482 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
483 "state x%x\n",
484 phba->brd_no, mb->mbxStatus, phba->hba_state);
485
486 phba->hba_state = LPFC_HBA_ERROR;
487 goto out;
488 }
489
490 if (phba->fc_flag & FC_ABORT_DISCOVERY)
491 goto out;
492
493 phba->num_disc_nodes = 0;
494 /* go thru NPR list and issue ELS PLOGIs */
495 if (phba->fc_npr_cnt) {
496 lpfc_els_disc_plogi(phba);
497 }
498
2fe165b6 499 if (!phba->num_disc_nodes) {
dea3101e
JB		 500 spin_lock_irq(phba->host->host_lock);
501 phba->fc_flag &= ~FC_NDISC_ACTIVE;
502 spin_unlock_irq(phba->host->host_lock);
503 }
504
505 phba->hba_state = LPFC_HBA_READY;
506
507out:
508 /* Device Discovery completes */
509 lpfc_printf_log(phba,
510 KERN_INFO,
511 LOG_DISCOVERY,
512 "%d:0225 Device Discovery completes\n",
513 phba->brd_no);
514
515 mempool_free( pmb, phba->mbox_mem_pool);
516
517 spin_lock_irq(phba->host->host_lock);
518 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
519 if (phba->fc_flag & FC_ESTABLISH_LINK) {
520 phba->fc_flag &= ~FC_ESTABLISH_LINK;
521 }
522 spin_unlock_irq(phba->host->host_lock);
523
524 del_timer_sync(&phba->fc_estabtmo);
525
526 lpfc_can_disctmo(phba);
527
528 /* turn on Link Attention interrupts */
529 spin_lock_irq(phba->host->host_lock);
530 psli->sli_flag |= LPFC_PROCESS_LA;
531 control = readl(phba->HCregaddr);
532 control |= HC_LAINT_ENA;
533 writel(control, phba->HCregaddr);
534 readl(phba->HCregaddr); /* flush */
535 spin_unlock_irq(phba->host->host_lock);
536
537 return;
538}
539
540static void
25594c6b 541lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 542{
25594c6b
JW		 543 struct lpfc_sli *psli = &phba->sli;
544 int rc;
dea3101e 545
25594c6b 546 if (pmb->mb.mbxStatus)
dea3101e 547 goto out;
dea3101e 548
25594c6b
JW		 549 mempool_free(pmb, phba->mbox_mem_pool);
550
551 if (phba->fc_topology == TOPOLOGY_LOOP &&
552 phba->fc_flag & FC_PUBLIC_LOOP &&
553 !(phba->fc_flag & FC_LBIT)) {
554 /* Need to wait for FAN - use discovery timer
555 * for timeout. hba_state is identically
556 * LPFC_LOCAL_CFG_LINK while waiting for FAN
557 */
558 lpfc_set_disctmo(phba);
559 return;
dea3101e
JB		 560 }
561
25594c6b
JW		 562 /* Start discovery by sending a FLOGI. hba_state is identically
563 * LPFC_FLOGI while waiting for FLOGI cmpl
564 */
565 phba->hba_state = LPFC_FLOGI;
566 lpfc_set_disctmo(phba);
567 lpfc_initial_flogi(phba);
568 return;
dea3101e
JB		 569
570out:
25594c6b
JW		 571 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
572 "%d:0306 CONFIG_LINK mbxStatus error x%x "
573 "HBA state x%x\n",
574 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
575
576 lpfc_linkdown(phba);
577
578 phba->hba_state = LPFC_HBA_ERROR;
579
580 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dea3101e
JB		 581 "%d:0200 CONFIG_LINK bad hba state x%x\n",
582 phba->brd_no, phba->hba_state);
583
25594c6b
JW		 584 lpfc_clear_la(phba, pmb);
585 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
586 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
587 if (rc == MBX_NOT_FINISHED) {
588 mempool_free(pmb, phba->mbox_mem_pool);
589 lpfc_disc_flush_list(phba);
590 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
591 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
592 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
593 phba->hba_state = LPFC_HBA_READY;
dea3101e
JB		 594 }
595 return;
596}
597
598static void
599lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
600{
601 struct lpfc_sli *psli = &phba->sli;
602 MAILBOX_t *mb = &pmb->mb;
603 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
604
605
606 /* Check for error */
607 if (mb->mbxStatus) {
608 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
609 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
610 "%d:0319 READ_SPARAM mbxStatus error x%x "
611 "hba state x%x>\n",
612 phba->brd_no, mb->mbxStatus, phba->hba_state);
613
614 lpfc_linkdown(phba);
615 phba->hba_state = LPFC_HBA_ERROR;
616 goto out;
617 }
618
619 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
620 sizeof (struct serv_parm));
621 memcpy((uint8_t *) & phba->fc_nodename,
622 (uint8_t *) & phba->fc_sparam.nodeName,
623 sizeof (struct lpfc_name));
624 memcpy((uint8_t *) & phba->fc_portname,
625 (uint8_t *) & phba->fc_sparam.portName,
626 sizeof (struct lpfc_name));
627 lpfc_mbuf_free(phba, mp->virt, mp->phys);
628 kfree(mp);
629 mempool_free( pmb, phba->mbox_mem_pool);
630 return;
631
632out:
633 pmb->context1 = NULL;
634 lpfc_mbuf_free(phba, mp->virt, mp->phys);
635 kfree(mp);
636 if (phba->hba_state != LPFC_CLEAR_LA) {
637 lpfc_clear_la(phba, pmb);
638 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
639 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
640 == MBX_NOT_FINISHED) {
641 mempool_free( pmb, phba->mbox_mem_pool);
642 lpfc_disc_flush_list(phba);
643 psli->ring[(psli->ip_ring)].flag &=
644 ~LPFC_STOP_IOCB_EVENT;
645 psli->ring[(psli->fcp_ring)].flag &=
646 ~LPFC_STOP_IOCB_EVENT;
647 psli->ring[(psli->next_ring)].flag &=
648 ~LPFC_STOP_IOCB_EVENT;
649 phba->hba_state = LPFC_HBA_READY;
650 }
651 } else {
652 mempool_free( pmb, phba->mbox_mem_pool);
653 }
654 return;
655}
656
657static void
658lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
659{
660 int i;
661 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
662 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
663 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
664
665 spin_lock_irq(phba->host->host_lock);
2fe165b6 666 switch (la->UlnkSpeed) {
dea3101e
JB		 667 case LA_1GHZ_LINK:
668 phba->fc_linkspeed = LA_1GHZ_LINK;
669 break;
670 case LA_2GHZ_LINK:
671 phba->fc_linkspeed = LA_2GHZ_LINK;
672 break;
673 case LA_4GHZ_LINK:
674 phba->fc_linkspeed = LA_4GHZ_LINK;
675 break;
676 default:
677 phba->fc_linkspeed = LA_UNKNW_LINK;
678 break;
679 }
680
681 phba->fc_topology = la->topology;
682
683 if (phba->fc_topology == TOPOLOGY_LOOP) {
684 /* Get Loop Map information */
685
686 if (la->il)
687 phba->fc_flag |= FC_LBIT;
688
689 phba->fc_myDID = la->granted_AL_PA;
690 i = la->un.lilpBde64.tus.f.bdeSize;
691
692 if (i == 0) {
693 phba->alpa_map[0] = 0;
694 } else {
695 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
696 int numalpa, j, k;
697 union {
698 uint8_t pamap[16];
699 struct {
700 uint32_t wd1;
701 uint32_t wd2;
702 uint32_t wd3;
703 uint32_t wd4;
704 } pa;
705 } un;
706 numalpa = phba->alpa_map[0];
707 j = 0;
708 while (j < numalpa) {
709 memset(un.pamap, 0, 16);
710 for (k = 1; j < numalpa; k++) {
711 un.pamap[k - 1] =
712 phba->alpa_map[j + 1];
713 j++;
714 if (k == 16)
715 break;
716 }
717 /* Link Up Event ALPA map */
718 lpfc_printf_log(phba,
719 KERN_WARNING,
720 LOG_LINK_EVENT,
721 "%d:1304 Link Up Event "
722 "ALPA map Data: x%x "
723 "x%x x%x x%x\n",
724 phba->brd_no,
725 un.pa.wd1, un.pa.wd2,
726 un.pa.wd3, un.pa.wd4);
727 }
728 }
729 }
730 } else {
731 phba->fc_myDID = phba->fc_pref_DID;
732 phba->fc_flag |= FC_LBIT;
733 }
734 spin_unlock_irq(phba->host->host_lock);
735
736 lpfc_linkup(phba);
737 if (sparam_mbox) {
738 lpfc_read_sparam(phba, sparam_mbox);
739 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
740 lpfc_sli_issue_mbox(phba, sparam_mbox,
741 (MBX_NOWAIT | MBX_STOP_IOCB));
742 }
743
744 if (cfglink_mbox) {
745 phba->hba_state = LPFC_LOCAL_CFG_LINK;
746 lpfc_config_link(phba, cfglink_mbox);
25594c6b 747 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
dea3101e
JB		 748 lpfc_sli_issue_mbox(phba, cfglink_mbox,
749 (MBX_NOWAIT | MBX_STOP_IOCB));
750 }
751}
752
753static void
754lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
755 uint32_t control;
756 struct lpfc_sli *psli = &phba->sli;
757
758 lpfc_linkdown(phba);
759
760 /* turn on Link Attention interrupts - no CLEAR_LA needed */
761 spin_lock_irq(phba->host->host_lock);
762 psli->sli_flag |= LPFC_PROCESS_LA;
763 control = readl(phba->HCregaddr);
764 control |= HC_LAINT_ENA;
765 writel(control, phba->HCregaddr);
766 readl(phba->HCregaddr); /* flush */
767 spin_unlock_irq(phba->host->host_lock);
768}
769
770/*
771 * This routine handles processing a READ_LA mailbox
772 * command upon completion. It is setup in the LPFC_MBOXQ
773 * as the completion routine when the command is
774 * handed off to the SLI layer.
775 */
776void
777lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
778{
779 READ_LA_VAR *la;
780 MAILBOX_t *mb = &pmb->mb;
781 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
782
783 /* Check for error */
784 if (mb->mbxStatus) {
785 lpfc_printf_log(phba,
786 KERN_INFO,
787 LOG_LINK_EVENT,
788 "%d:1307 READ_LA mbox error x%x state x%x\n",
789 phba->brd_no,
790 mb->mbxStatus, phba->hba_state);
791 lpfc_mbx_issue_link_down(phba);
792 phba->hba_state = LPFC_HBA_ERROR;
793 goto lpfc_mbx_cmpl_read_la_free_mbuf;
794 }
795
796 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
797
798 memcpy(&phba->alpa_map[0], mp->virt, 128);
799
c9f8735b
JW		 800 spin_lock_irq(phba->host->host_lock);
801 if (la->pb)
802 phba->fc_flag |= FC_BYPASSED_MODE;
803 else
804 phba->fc_flag &= ~FC_BYPASSED_MODE;
805 spin_unlock_irq(phba->host->host_lock);
806
dea3101e
JB		 807 if (((phba->fc_eventTag + 1) < la->eventTag) ||
808 (phba->fc_eventTag == la->eventTag)) {
809 phba->fc_stat.LinkMultiEvent++;
810 if (la->attType == AT_LINK_UP) {
811 if (phba->fc_eventTag != 0)
812 lpfc_linkdown(phba);
813 }
814 }
815
816 phba->fc_eventTag = la->eventTag;
817
818 if (la->attType == AT_LINK_UP) {
819 phba->fc_stat.LinkUp++;
820 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
821 "%d:1303 Link Up Event x%x received "
822 "Data: x%x x%x x%x x%x\n",
823 phba->brd_no, la->eventTag, phba->fc_eventTag,
824 la->granted_AL_PA, la->UlnkSpeed,
825 phba->alpa_map[0]);
826 lpfc_mbx_process_link_up(phba, la);
827 } else {
828 phba->fc_stat.LinkDown++;
829 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
830 "%d:1305 Link Down Event x%x received "
831 "Data: x%x x%x x%x\n",
832 phba->brd_no, la->eventTag, phba->fc_eventTag,
833 phba->hba_state, phba->fc_flag);
834 lpfc_mbx_issue_link_down(phba);
835 }
836
837lpfc_mbx_cmpl_read_la_free_mbuf:
838 lpfc_mbuf_free(phba, mp->virt, mp->phys);
839 kfree(mp);
840 mempool_free(pmb, phba->mbox_mem_pool);
841 return;
842}
843
844/*
845 * This routine handles processing a REG_LOGIN mailbox
846 * command upon completion. It is setup in the LPFC_MBOXQ
847 * as the completion routine when the command is
848 * handed off to the SLI layer.
849 */
850void
851lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
852{
853 struct lpfc_sli *psli;
854 MAILBOX_t *mb;
855 struct lpfc_dmabuf *mp;
856 struct lpfc_nodelist *ndlp;
857
858 psli = &phba->sli;
859 mb = &pmb->mb;
860
861 ndlp = (struct lpfc_nodelist *) pmb->context2;
862 mp = (struct lpfc_dmabuf *) (pmb->context1);
863
864 pmb->context1 = NULL;
865
866 /* Good status, call state machine */
867 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
868 lpfc_mbuf_free(phba, mp->virt, mp->phys);
869 kfree(mp);
870 mempool_free( pmb, phba->mbox_mem_pool);
871
872 return;
873}
874
875/*
876 * This routine handles processing a Fabric REG_LOGIN mailbox
877 * command upon completion. It is setup in the LPFC_MBOXQ
878 * as the completion routine when the command is
879 * handed off to the SLI layer.
880 */
881void
882lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
883{
884 struct lpfc_sli *psli;
885 MAILBOX_t *mb;
886 struct lpfc_dmabuf *mp;
887 struct lpfc_nodelist *ndlp;
888 struct lpfc_nodelist *ndlp_fdmi;
889
890
891 psli = &phba->sli;
892 mb = &pmb->mb;
893
894 ndlp = (struct lpfc_nodelist *) pmb->context2;
895 mp = (struct lpfc_dmabuf *) (pmb->context1);
896
897 if (mb->mbxStatus) {
898 lpfc_mbuf_free(phba, mp->virt, mp->phys);
899 kfree(mp);
900 mempool_free( pmb, phba->mbox_mem_pool);
901 mempool_free( ndlp, phba->nlp_mem_pool);
902
903 /* FLOGI failed, so just use loop map to make discovery list */
904 lpfc_disc_list_loopmap(phba);
905
906 /* Start discovery */
907 lpfc_disc_start(phba);
908 return;
909 }
910
911 pmb->context1 = NULL;
912
dea3101e 913 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e
JB		 914 ndlp->nlp_type |= NLP_FABRIC;
915 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
916 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
917
918 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
919 /* This NPort has been assigned an NPort_ID by the fabric as a
920 * result of the completed fabric login. Issue a State Change
921 * Registration (SCR) ELS request to the fabric controller
922 * (SCR_DID) so that this NPort gets RSCN events from the
923 * fabric.
924 */
925 lpfc_issue_els_scr(phba, SCR_DID, 0);
926
c9f8735b
JW		 927 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
928 if (!ndlp) {
929 /* Allocate a new node instance. If the pool is empty,
930 * start the discovery process and skip the Nameserver
931 * login process. This is attempted again later on.
932 * Otherwise, issue a Port Login (PLOGI) to NameServer.
933 */
934 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
935 if (!ndlp) {
936 lpfc_disc_start(phba);
937 lpfc_mbuf_free(phba, mp->virt, mp->phys);
938 kfree(mp);
939 mempool_free( pmb, phba->mbox_mem_pool);
940 return;
941 } else {
942 lpfc_nlp_init(phba, ndlp, NameServer_DID);
943 ndlp->nlp_type |= NLP_FABRIC;
944 }
945 }
946 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
947 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
948 lpfc_issue_els_plogi(phba, ndlp, 0);
949 if (phba->cfg_fdmi_on) {
950 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
951 GFP_KERNEL);
952 if (ndlp_fdmi) {
953 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
954 ndlp_fdmi->nlp_type |= NLP_FABRIC;
955 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
956 lpfc_issue_els_plogi(phba, ndlp_fdmi, 0);
dea3101e
JB		 957 }
958 }
959 }
960
961 lpfc_mbuf_free(phba, mp->virt, mp->phys);
962 kfree(mp);
963 mempool_free( pmb, phba->mbox_mem_pool);
dea3101e
JB		 964 return;
965}
966
967/*
968 * This routine handles processing a NameServer REG_LOGIN mailbox
969 * command upon completion. It is setup in the LPFC_MBOXQ
970 * as the completion routine when the command is
971 * handed off to the SLI layer.
972 */
973void
974lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
975{
976 struct lpfc_sli *psli;
977 MAILBOX_t *mb;
978 struct lpfc_dmabuf *mp;
979 struct lpfc_nodelist *ndlp;
980
981 psli = &phba->sli;
982 mb = &pmb->mb;
983
984 ndlp = (struct lpfc_nodelist *) pmb->context2;
985 mp = (struct lpfc_dmabuf *) (pmb->context1);
986
987 if (mb->mbxStatus) {
988 lpfc_mbuf_free(phba, mp->virt, mp->phys);
989 kfree(mp);
990 mempool_free( pmb, phba->mbox_mem_pool);
991 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
992
993 /* RegLogin failed, so just use loop map to make discovery
994 list */
995 lpfc_disc_list_loopmap(phba);
996
997 /* Start discovery */
998 lpfc_disc_start(phba);
999 return;
1000 }
1001
1002 pmb->context1 = NULL;
1003
dea3101e 1004 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e
JB		 1005 ndlp->nlp_type |= NLP_FABRIC;
1006 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1007 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1008
1009 if (phba->hba_state < LPFC_HBA_READY) {
1010 /* Link up discovery requires Fabrib registration. */
1011 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1012 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1013 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1014 }
1015
1016 phba->fc_ns_retry = 0;
1017 /* Good status, issue CT Request to NameServer */
1018 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1019 /* Cannot issue NameServer Query, so finish up discovery */
1020 lpfc_disc_start(phba);
1021 }
1022
1023 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1024 kfree(mp);
1025 mempool_free( pmb, phba->mbox_mem_pool);
1026
1027 return;
1028}
1029
1030static void
1031lpfc_register_remote_port(struct lpfc_hba * phba,
1032 struct lpfc_nodelist * ndlp)
1033{
1034 struct fc_rport *rport;
1035 struct lpfc_rport_data *rdata;
1036 struct fc_rport_identifiers rport_ids;
dea3101e
JB		 1037
1038 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1039 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1040 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e
JB		 1041 rport_ids.port_id = ndlp->nlp_DID;
1042 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e
JB		 1043
1044 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1045 if (!rport) {
1046 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1047 "Warning: fc_remote_port_add failed\n");
1048 return;
1049 }
1050
1051 /* initialize static port data */
1052 rport->maxframe_size = ndlp->nlp_maxframe;
1053 rport->supported_classes = ndlp->nlp_class_sup;
1054 if ((rport->scsi_target_id != -1) &&
1055 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1056 ndlp->nlp_sid = rport->scsi_target_id;
1057 }
1058 rdata = rport->dd_data;
1059 rdata->pnode = ndlp;
23dc04f1
JSEC		 1060
1061 if (ndlp->nlp_type & NLP_FCP_TARGET)
1062 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1063 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1064 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1065
1066
1067 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1068 fc_remote_port_rolechg(rport, rport_ids.roles);
1069
19a7b4ae
JSEC		 1070
1071 return;
1072}
1073
1074static void
1075lpfc_unregister_remote_port(struct lpfc_hba * phba,
1076 struct lpfc_nodelist * ndlp)
1077{
1078 struct fc_rport *rport = ndlp->rport;
1079 struct lpfc_rport_data *rdata = rport->dd_data;
1080
1081 ndlp->rport = NULL;
1082 rdata->pnode = NULL;
19a7b4ae 1083 fc_remote_port_delete(rport);
dea3101e
JB		 1084
1085 return;
1086}
1087
1088int
1089lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1090{
1091 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1092 struct lpfc_sli *psli;
1093
1094 psli = &phba->sli;
1095 /* Sanity check to ensure we are not moving to / from the same list */
2fe165b6 1096 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
dea3101e 1097 if (list != NLP_NO_LIST)
2fe165b6 1098 return 0;
dea3101e 1099
2fe165b6 1100 switch (nlp->nlp_flag & NLP_LIST_MASK) {
dea3101e
JB		 1101 case NLP_NO_LIST: /* Not on any list */
1102 break;
1103 case NLP_UNUSED_LIST:
1104 phba->fc_unused_cnt--;
1105 list_del(&nlp->nlp_listp);
1106 break;
1107 case NLP_PLOGI_LIST:
1108 phba->fc_plogi_cnt--;
1109 list_del(&nlp->nlp_listp);
1110 break;
1111 case NLP_ADISC_LIST:
1112 phba->fc_adisc_cnt--;
1113 list_del(&nlp->nlp_listp);
1114 break;
1115 case NLP_REGLOGIN_LIST:
1116 phba->fc_reglogin_cnt--;
1117 list_del(&nlp->nlp_listp);
1118 break;
1119 case NLP_PRLI_LIST:
1120 phba->fc_prli_cnt--;
1121 list_del(&nlp->nlp_listp);
1122 break;
1123 case NLP_UNMAPPED_LIST:
1124 phba->fc_unmap_cnt--;
1125 list_del(&nlp->nlp_listp);
1126 spin_lock_irq(phba->host->host_lock);
1127 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1128 nlp->nlp_type &= ~NLP_FC_NODE;
1129 spin_unlock_irq(phba->host->host_lock);
1130 phba->nport_event_cnt++;
1131 if (nlp->rport)
1132 rport_del = unmapped;
1133 break;
1134 case NLP_MAPPED_LIST:
1135 phba->fc_map_cnt--;
1136 list_del(&nlp->nlp_listp);
1137 phba->nport_event_cnt++;
1138 if (nlp->rport)
1139 rport_del = mapped;
1140 break;
1141 case NLP_NPR_LIST:
1142 phba->fc_npr_cnt--;
1143 list_del(&nlp->nlp_listp);
1144 /* Stop delay tmo if taking node off NPR list */
1145 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1146 (list != NLP_NPR_LIST)) {
1147 spin_lock_irq(phba->host->host_lock);
1148 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1149 spin_unlock_irq(phba->host->host_lock);
5024ab17 1150 nlp->nlp_last_elscmd = 0;
dea3101e
JB		 1151 del_timer_sync(&nlp->nlp_delayfunc);
1152 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1153 list_del_init(&nlp->els_retry_evt.evt_listp);
1154 }
1155 break;
1156 }
1157
1158 spin_lock_irq(phba->host->host_lock);
1159 nlp->nlp_flag &= ~NLP_LIST_MASK;
1160 spin_unlock_irq(phba->host->host_lock);
1161
1162 /* Add NPort <did> to <num> list */
1163 lpfc_printf_log(phba,
1164 KERN_INFO,
1165 LOG_NODE,
1166 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1167 phba->brd_no,
1168 nlp->nlp_DID, list, nlp->nlp_flag);
1169
2fe165b6 1170 switch (list) {
dea3101e
JB		 1171 case NLP_NO_LIST: /* No list, just remove it */
1172 lpfc_nlp_remove(phba, nlp);
8cbdc5ff
JSEC		 1173 /* as node removed - stop further transport calls */
1174 rport_del = none;
dea3101e
JB		 1175 break;
1176 case NLP_UNUSED_LIST:
1177 spin_lock_irq(phba->host->host_lock);
1178 nlp->nlp_flag |= list;
1179 spin_unlock_irq(phba->host->host_lock);
1180 /* Put it at the end of the unused list */
1181 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1182 phba->fc_unused_cnt++;
1183 break;
1184 case NLP_PLOGI_LIST:
1185 spin_lock_irq(phba->host->host_lock);
1186 nlp->nlp_flag |= list;
1187 spin_unlock_irq(phba->host->host_lock);
1188 /* Put it at the end of the plogi list */
1189 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1190 phba->fc_plogi_cnt++;
1191 break;
1192 case NLP_ADISC_LIST:
1193 spin_lock_irq(phba->host->host_lock);
1194 nlp->nlp_flag |= list;
1195 spin_unlock_irq(phba->host->host_lock);
1196 /* Put it at the end of the adisc list */
1197 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1198 phba->fc_adisc_cnt++;
1199 break;
1200 case NLP_REGLOGIN_LIST:
1201 spin_lock_irq(phba->host->host_lock);
1202 nlp->nlp_flag |= list;
1203 spin_unlock_irq(phba->host->host_lock);
1204 /* Put it at the end of the reglogin list */
1205 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1206 phba->fc_reglogin_cnt++;
1207 break;
1208 case NLP_PRLI_LIST:
1209 spin_lock_irq(phba->host->host_lock);
1210 nlp->nlp_flag |= list;
1211 spin_unlock_irq(phba->host->host_lock);
1212 /* Put it at the end of the prli list */
1213 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1214 phba->fc_prli_cnt++;
1215 break;
1216 case NLP_UNMAPPED_LIST:
1217 rport_add = unmapped;
1218 /* ensure all vestiges of "mapped" significance are gone */
1219 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1220 spin_lock_irq(phba->host->host_lock);
1221 nlp->nlp_flag |= list;
1222 spin_unlock_irq(phba->host->host_lock);
1223 /* Put it at the end of the unmap list */
1224 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1225 phba->fc_unmap_cnt++;
1226 phba->nport_event_cnt++;
1227 /* stop nodev tmo if running */
1228 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1229 spin_lock_irq(phba->host->host_lock);
1230 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1231 spin_unlock_irq(phba->host->host_lock);
1232 del_timer_sync(&nlp->nlp_tmofunc);
1233 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1234 list_del_init(&nlp->nodev_timeout_evt.
1235 evt_listp);
1236
1237 }
1238 nlp->nlp_type |= NLP_FC_NODE;
1239 break;
1240 case NLP_MAPPED_LIST:
1241 rport_add = mapped;
1242 spin_lock_irq(phba->host->host_lock);
1243 nlp->nlp_flag |= list;
1244 spin_unlock_irq(phba->host->host_lock);
1245 /* Put it at the end of the map list */
1246 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1247 phba->fc_map_cnt++;
1248 phba->nport_event_cnt++;
1249 /* stop nodev tmo if running */
1250 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1251 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1252 del_timer_sync(&nlp->nlp_tmofunc);
1253 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1254 list_del_init(&nlp->nodev_timeout_evt.
1255 evt_listp);
1256
1257 }
1258 break;
1259 case NLP_NPR_LIST:
1260 spin_lock_irq(phba->host->host_lock);
1261 nlp->nlp_flag |= list;
1262 spin_unlock_irq(phba->host->host_lock);
1263 /* Put it at the end of the npr list */
1264 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1265 phba->fc_npr_cnt++;
1266
2fe165b6 1267 if (!(nlp->nlp_flag & NLP_NODEV_TMO))
dea3101e 1268 mod_timer(&nlp->nlp_tmofunc,
c9f8735b 1269 jiffies + HZ * phba->cfg_nodev_tmo);
2fe165b6 1270
dea3101e
JB		 1271 spin_lock_irq(phba->host->host_lock);
1272 nlp->nlp_flag |= NLP_NODEV_TMO;
1273 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1274 spin_unlock_irq(phba->host->host_lock);
1275 break;
1276 case NLP_JUST_DQ:
1277 break;
1278 }
1279
1280 /*
1281 * We make all the calls into the transport after we have
1282 * moved the node between lists. This so that we don't
1283 * release the lock while in-between lists.
1284 */
1285
1286 /* Don't upcall midlayer if we're unloading */
1287 if (!(phba->fc_flag & FC_UNLOADING)) {
1288 /*
1289 * We revalidate the rport pointer as the "add" function
1290 * may have removed the remote port.
1291 */
1292 if ((rport_del != none) && nlp->rport)
19a7b4ae 1293 lpfc_unregister_remote_port(phba, nlp);
dea3101e
JB		 1294
1295 if (rport_add != none) {
1296 /*
1297 * Tell the fc transport about the port, if we haven't
1298 * already. If we have, and it's a scsi entity, be
1299 * sure to unblock any attached scsi devices
1300 */
1301 if (!nlp->rport)
1302 lpfc_register_remote_port(phba, nlp);
dea3101e
JB		 1303
1304 /*
1305 * if we added to Mapped list, but the remote port
1306 * registration failed or assigned a target id outside
1307 * our presentable range - move the node to the
1308 * Unmapped List
1309 */
1310 if ((rport_add == mapped) &&
1311 ((!nlp->rport) ||
1312 (nlp->rport->scsi_target_id == -1) ||
1313 (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1314 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1315 spin_lock_irq(phba->host->host_lock);
1316 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1317 spin_unlock_irq(phba->host->host_lock);
1318 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1319 }
1320 }
1321 }
2fe165b6 1322 return 0;
dea3101e
JB		 1323}
1324
1325/*
1326 * Start / ReStart rescue timer for Discovery / RSCN handling
1327 */
1328void
1329lpfc_set_disctmo(struct lpfc_hba * phba)
1330{
1331 uint32_t tmo;
1332
c9f8735b
JW		 1333 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1334 /* For FAN, timeout should be greater then edtov */
1335 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1336 } else {
1337 /* Normal discovery timeout should be > then ELS/CT timeout
1338 * FC spec states we need 3 * ratov for CT requests
1339 */
1340 tmo = ((phba->fc_ratov * 3) + 3);
1341 }
dea3101e
JB		 1342
1343 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1344 spin_lock_irq(phba->host->host_lock);
1345 phba->fc_flag |= FC_DISC_TMO;
1346 spin_unlock_irq(phba->host->host_lock);
1347
1348 /* Start Discovery Timer state <hba_state> */
1349 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1350 "%d:0247 Start Discovery Timer state x%x "
1351 "Data: x%x x%lx x%x x%x\n",
1352 phba->brd_no,
1353 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1354 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1355
1356 return;
1357}
1358
1359/*
1360 * Cancel rescue timer for Discovery / RSCN handling
1361 */
1362int
1363lpfc_can_disctmo(struct lpfc_hba * phba)
1364{
1365 /* Turn off discovery timer if its running */
1366 if (phba->fc_flag & FC_DISC_TMO) {
1367 spin_lock_irq(phba->host->host_lock);
1368 phba->fc_flag &= ~FC_DISC_TMO;
1369 spin_unlock_irq(phba->host->host_lock);
1370 del_timer_sync(&phba->fc_disctmo);
1371 phba->work_hba_events &= ~WORKER_DISC_TMO;
1372 }
1373
1374 /* Cancel Discovery Timer state <hba_state> */
1375 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1376 "%d:0248 Cancel Discovery Timer state x%x "
1377 "Data: x%x x%x x%x\n",
1378 phba->brd_no, phba->hba_state, phba->fc_flag,
1379 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1380
2fe165b6 1381 return 0;
dea3101e
JB		 1382}
1383
1384/*
1385 * Check specified ring for outstanding IOCB on the SLI queue
1386 * Return true if iocb matches the specified nport
1387 */
1388int
1389lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1390 struct lpfc_sli_ring * pring,
1391 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1392{
1393 struct lpfc_sli *psli;
1394 IOCB_t *icmd;
1395
1396 psli = &phba->sli;
1397 icmd = &iocb->iocb;
1398 if (pring->ringno == LPFC_ELS_RING) {
1399 switch (icmd->ulpCommand) {
1400 case CMD_GEN_REQUEST64_CR:
1401 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1402 return 1;
dea3101e
JB		 1403 case CMD_ELS_REQUEST64_CR:
1404 case CMD_XMIT_ELS_RSP64_CX:
1405 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1406 return 1;
dea3101e
JB		 1407 }
1408 } else if (pring->ringno == psli->ip_ring) {
1409
1410 } else if (pring->ringno == psli->fcp_ring) {
1411 /* Skip match check if waiting to relogin to FCP target */
1412 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1413 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1414 return 0;
dea3101e
JB		 1415 }
1416 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1417 return 1;
dea3101e
JB		 1418 }
1419 } else if (pring->ringno == psli->next_ring) {
1420
1421 }
2fe165b6 1422 return 0;
dea3101e
JB		 1423}
1424
1425/*
1426 * Free resources / clean up outstanding I/Os
1427 * associated with nlp_rpi in the LPFC_NODELIST entry.
1428 */
1429static int
1430lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1431{
1432 struct lpfc_sli *psli;
1433 struct lpfc_sli_ring *pring;
1434 struct lpfc_iocbq *iocb, *next_iocb;
1435 IOCB_t *icmd;
1436 uint32_t rpi, i;
1437
1438 /*
1439 * Everything that matches on txcmplq will be returned
1440 * by firmware with a no rpi error.
1441 */
1442 psli = &phba->sli;
1443 rpi = ndlp->nlp_rpi;
1444 if (rpi) {
1445 /* Now process each ring */
1446 for (i = 0; i < psli->num_rings; i++) {
1447 pring = &psli->ring[i];
1448
1449 spin_lock_irq(phba->host->host_lock);
1450 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1451 list) {
1452 /*
1453 * Check to see if iocb matches the nport we are
1454 * looking for
1455 */
1456 if ((lpfc_check_sli_ndlp
1457 (phba, pring, iocb, ndlp))) {
1458 /* It matches, so deque and call compl
1459 with an error */
1460 list_del(&iocb->list);
1461 pring->txq_cnt--;
1462 if (iocb->iocb_cmpl) {
1463 icmd = &iocb->iocb;
1464 icmd->ulpStatus =
1465 IOSTAT_LOCAL_REJECT;
1466 icmd->un.ulpWord[4] =
1467 IOERR_SLI_ABORTED;
1468 spin_unlock_irq(phba->host->
1469 host_lock);
1470 (iocb->iocb_cmpl) (phba,
1471 iocb, iocb);
1472 spin_lock_irq(phba->host->
1473 host_lock);
604a3e30
JB		 1474 } else
1475 lpfc_sli_release_iocbq(phba,
1476 iocb);
dea3101e
JB		 1477 }
1478 }
1479 spin_unlock_irq(phba->host->host_lock);
1480
1481 }
1482 }
2fe165b6 1483 return 0;
dea3101e
JB		 1484}
1485
1486/*
1487 * Free rpi associated with LPFC_NODELIST entry.
1488 * This routine is called from lpfc_freenode(), when we are removing
1489 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1490 * LOGO that completes successfully, and we are waiting to PLOGI back
1491 * to the remote NPort. In addition, it is called after we receive
1492 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1493 * we are waiting to PLOGI back to the remote NPort.
1494 */
1495int
1496lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1497{
1498 LPFC_MBOXQ_t *mbox;
1499 int rc;
1500
1501 if (ndlp->nlp_rpi) {
1502 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1503 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1504 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1505 rc = lpfc_sli_issue_mbox
1506 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1507 if (rc == MBX_NOT_FINISHED)
1508 mempool_free( mbox, phba->mbox_mem_pool);
1509 }
dea3101e
JB		 1510 lpfc_no_rpi(phba, ndlp);
1511 ndlp->nlp_rpi = 0;
1512 return 1;
1513 }
1514 return 0;
1515}
1516
1517/*
1518 * Free resources associated with LPFC_NODELIST entry
1519 * so it can be freed.
1520 */
1521static int
1522lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1523{
1524 LPFC_MBOXQ_t *mb;
1525 LPFC_MBOXQ_t *nextmb;
1526 struct lpfc_dmabuf *mp;
dea3101e
JB		 1527
1528 /* Cleanup node for NPort <nlp_DID> */
1529 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1530 "%d:0900 Cleanup node for NPort x%x "
1531 "Data: x%x x%x x%x\n",
1532 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1533 ndlp->nlp_state, ndlp->nlp_rpi);
1534
1535 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1536
1537 /*
1538 * if unloading the driver - just leave the remote port in place.
1539 * The driver unload will force the attached devices to detach
1540 * and flush cache's w/o generating flush errors.
1541 */
1542 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
19a7b4ae 1543 lpfc_unregister_remote_port(phba, ndlp);
dea3101e
JB		 1544 ndlp->nlp_sid = NLP_NO_SID;
1545 }
1546
1547 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1548 if ((mb = phba->sli.mbox_active)) {
1549 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1550 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1551 mb->context2 = NULL;
1552 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1553 }
1554 }
1555 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1556 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1557 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1558 mp = (struct lpfc_dmabuf *) (mb->context1);
1559 if (mp) {
1560 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1561 kfree(mp);
1562 }
1563 list_del(&mb->list);
1564 mempool_free(mb, phba->mbox_mem_pool);
1565 }
1566 }
1567
1568 lpfc_els_abort(phba,ndlp,0);
1569 spin_lock_irq(phba->host->host_lock);
1570 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1571 spin_unlock_irq(phba->host->host_lock);
1572 del_timer_sync(&ndlp->nlp_tmofunc);
1573
5024ab17 1574 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 1575 del_timer_sync(&ndlp->nlp_delayfunc);
1576
1577 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1578 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1579 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1580 list_del_init(&ndlp->els_retry_evt.evt_listp);
1581
1582 lpfc_unreg_rpi(phba, ndlp);
1583
2fe165b6 1584 return 0;
dea3101e
JB		 1585}
1586
1587/*
1588 * Check to see if we can free the nlp back to the freelist.
1589 * If we are in the middle of using the nlp in the discovery state
1590 * machine, defer the free till we reach the end of the state machine.
1591 */
1592int
1593lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1594{
1595 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1596 spin_lock_irq(phba->host->host_lock);
1597 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1598 spin_unlock_irq(phba->host->host_lock);
1599 del_timer_sync(&ndlp->nlp_tmofunc);
1600 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1601 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1602
1603 }
1604
1605
1606 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1607 spin_lock_irq(phba->host->host_lock);
1608 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1609 spin_unlock_irq(phba->host->host_lock);
5024ab17 1610 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 1611 del_timer_sync(&ndlp->nlp_delayfunc);
1612 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1613 list_del_init(&ndlp->els_retry_evt.evt_listp);
1614 }
1615
1616 if (ndlp->nlp_disc_refcnt) {
1617 spin_lock_irq(phba->host->host_lock);
1618 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1619 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1620 } else {
dea3101e
JB		 1621 lpfc_freenode(phba, ndlp);
1622 mempool_free( ndlp, phba->nlp_mem_pool);
1623 }
2fe165b6 1624 return 0;
dea3101e
JB		 1625}
1626
1627static int
1628lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1629{
1630 D_ID mydid;
1631 D_ID ndlpdid;
1632 D_ID matchdid;
1633
1634 if (did == Bcast_DID)
2fe165b6 1635 return 0;
dea3101e
JB		 1636
1637 if (ndlp->nlp_DID == 0) {
2fe165b6 1638 return 0;
dea3101e
JB		 1639 }
1640
1641 /* First check for Direct match */
1642 if (ndlp->nlp_DID == did)
2fe165b6 1643 return 1;
dea3101e
JB		 1644
1645 /* Next check for area/domain identically equals 0 match */
1646 mydid.un.word = phba->fc_myDID;
1647 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 1648 return 0;
dea3101e
JB		 1649 }
1650
1651 matchdid.un.word = did;
1652 ndlpdid.un.word = ndlp->nlp_DID;
1653 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1654 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1655 (mydid.un.b.area == matchdid.un.b.area)) {
1656 if ((ndlpdid.un.b.domain == 0) &&
1657 (ndlpdid.un.b.area == 0)) {
1658 if (ndlpdid.un.b.id)
2fe165b6 1659 return 1;
dea3101e 1660 }
2fe165b6 1661 return 0;
dea3101e
JB		 1662 }
1663
1664 matchdid.un.word = ndlp->nlp_DID;
1665 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1666 (mydid.un.b.area == ndlpdid.un.b.area)) {
1667 if ((matchdid.un.b.domain == 0) &&
1668 (matchdid.un.b.area == 0)) {
1669 if (matchdid.un.b.id)
2fe165b6 1670 return 1;
dea3101e
JB		 1671 }
1672 }
1673 }
2fe165b6 1674 return 0;
dea3101e
JB		 1675}
1676
1677/* Search for a nodelist entry on a specific list */
1678struct lpfc_nodelist *
1679lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1680{
1681 struct lpfc_nodelist *ndlp, *next_ndlp;
1682 uint32_t data1;
1683
1684 if (order & NLP_SEARCH_UNMAPPED) {
1685 list_for_each_entry_safe(ndlp, next_ndlp,
1686 &phba->fc_nlpunmap_list, nlp_listp) {
1687 if (lpfc_matchdid(phba, ndlp, did)) {
1688 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1689 ((uint32_t) ndlp->nlp_xri << 16) |
1690 ((uint32_t) ndlp->nlp_type << 8) |
1691 ((uint32_t) ndlp->nlp_rpi & 0xff));
1692 /* FIND node DID unmapped */
1693 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1694 "%d:0929 FIND node DID unmapped"
1695 " Data: x%p x%x x%x x%x\n",
1696 phba->brd_no,
1697 ndlp, ndlp->nlp_DID,
1698 ndlp->nlp_flag, data1);
2fe165b6 1699 return ndlp;
dea3101e
JB		 1700 }
1701 }
1702 }
1703
1704 if (order & NLP_SEARCH_MAPPED) {
1705 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1706 nlp_listp) {
1707 if (lpfc_matchdid(phba, ndlp, did)) {
1708
1709 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1710 ((uint32_t) ndlp->nlp_xri << 16) |
1711 ((uint32_t) ndlp->nlp_type << 8) |
1712 ((uint32_t) ndlp->nlp_rpi & 0xff));
1713 /* FIND node DID mapped */
1714 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1715 "%d:0930 FIND node DID mapped "
1716 "Data: x%p x%x x%x x%x\n",
1717 phba->brd_no,
1718 ndlp, ndlp->nlp_DID,
1719 ndlp->nlp_flag, data1);
2fe165b6 1720 return ndlp;
dea3101e
JB		 1721 }
1722 }
1723 }
1724
1725 if (order & NLP_SEARCH_PLOGI) {
1726 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1727 nlp_listp) {
1728 if (lpfc_matchdid(phba, ndlp, did)) {
1729
1730 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1731 ((uint32_t) ndlp->nlp_xri << 16) |
1732 ((uint32_t) ndlp->nlp_type << 8) |
1733 ((uint32_t) ndlp->nlp_rpi & 0xff));
1734 /* LOG change to PLOGI */
1735 /* FIND node DID plogi */
1736 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1737 "%d:0908 FIND node DID plogi "
1738 "Data: x%p x%x x%x x%x\n",
1739 phba->brd_no,
1740 ndlp, ndlp->nlp_DID,
1741 ndlp->nlp_flag, data1);
2fe165b6 1742 return ndlp;
dea3101e
JB		 1743 }
1744 }
1745 }
1746
1747 if (order & NLP_SEARCH_ADISC) {
1748 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1749 nlp_listp) {
1750 if (lpfc_matchdid(phba, ndlp, did)) {
1751
1752 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1753 ((uint32_t) ndlp->nlp_xri << 16) |
1754 ((uint32_t) ndlp->nlp_type << 8) |
1755 ((uint32_t) ndlp->nlp_rpi & 0xff));
1756 /* LOG change to ADISC */
1757 /* FIND node DID adisc */
1758 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1759 "%d:0931 FIND node DID adisc "
1760 "Data: x%p x%x x%x x%x\n",
1761 phba->brd_no,
1762 ndlp, ndlp->nlp_DID,
1763 ndlp->nlp_flag, data1);
2fe165b6 1764 return ndlp;
dea3101e
JB		 1765 }
1766 }
1767 }
1768
1769 if (order & NLP_SEARCH_REGLOGIN) {
1770 list_for_each_entry_safe(ndlp, next_ndlp,
1771 &phba->fc_reglogin_list, nlp_listp) {
1772 if (lpfc_matchdid(phba, ndlp, did)) {
1773
1774 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1775 ((uint32_t) ndlp->nlp_xri << 16) |
1776 ((uint32_t) ndlp->nlp_type << 8) |
1777 ((uint32_t) ndlp->nlp_rpi & 0xff));
1778 /* LOG change to REGLOGIN */
1779 /* FIND node DID reglogin */
1780 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1781 "%d:0931 FIND node DID reglogin"
1782 " Data: x%p x%x x%x x%x\n",
1783 phba->brd_no,
1784 ndlp, ndlp->nlp_DID,
1785 ndlp->nlp_flag, data1);
2fe165b6 1786 return ndlp;
dea3101e
JB		 1787 }
1788 }
1789 }
1790
1791 if (order & NLP_SEARCH_PRLI) {
1792 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1793 nlp_listp) {
1794 if (lpfc_matchdid(phba, ndlp, did)) {
1795
1796 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1797 ((uint32_t) ndlp->nlp_xri << 16) |
1798 ((uint32_t) ndlp->nlp_type << 8) |
1799 ((uint32_t) ndlp->nlp_rpi & 0xff));
1800 /* LOG change to PRLI */
1801 /* FIND node DID prli */
1802 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1803 "%d:0931 FIND node DID prli "
1804 "Data: x%p x%x x%x x%x\n",
1805 phba->brd_no,
1806 ndlp, ndlp->nlp_DID,
1807 ndlp->nlp_flag, data1);
2fe165b6 1808 return ndlp;
dea3101e
JB		 1809 }
1810 }
1811 }
1812
1813 if (order & NLP_SEARCH_NPR) {
1814 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1815 nlp_listp) {
1816 if (lpfc_matchdid(phba, ndlp, did)) {
1817
1818 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1819 ((uint32_t) ndlp->nlp_xri << 16) |
1820 ((uint32_t) ndlp->nlp_type << 8) |
1821 ((uint32_t) ndlp->nlp_rpi & 0xff));
1822 /* LOG change to NPR */
1823 /* FIND node DID npr */
1824 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1825 "%d:0931 FIND node DID npr "
1826 "Data: x%p x%x x%x x%x\n",
1827 phba->brd_no,
1828 ndlp, ndlp->nlp_DID,
1829 ndlp->nlp_flag, data1);
2fe165b6 1830 return ndlp;
dea3101e
JB		 1831 }
1832 }
1833 }
1834
1835 if (order & NLP_SEARCH_UNUSED) {
1836 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1837 nlp_listp) {
1838 if (lpfc_matchdid(phba, ndlp, did)) {
1839
1840 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1841 ((uint32_t) ndlp->nlp_xri << 16) |
1842 ((uint32_t) ndlp->nlp_type << 8) |
1843 ((uint32_t) ndlp->nlp_rpi & 0xff));
1844 /* LOG change to UNUSED */
1845 /* FIND node DID unused */
1846 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1847 "%d:0931 FIND node DID unused "
1848 "Data: x%p x%x x%x x%x\n",
1849 phba->brd_no,
1850 ndlp, ndlp->nlp_DID,
1851 ndlp->nlp_flag, data1);
2fe165b6 1852 return ndlp;
dea3101e
JB		 1853 }
1854 }
1855 }
1856
1857 /* FIND node did <did> NOT FOUND */
1858 lpfc_printf_log(phba,
1859 KERN_INFO,
1860 LOG_NODE,
1861 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1862 phba->brd_no, did, order);
1863
1864 /* no match found */
1865 return NULL;
1866}
1867
1868struct lpfc_nodelist *
1869lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1870{
1871 struct lpfc_nodelist *ndlp;
1872 uint32_t flg;
1873
c9f8735b
JW		 1874 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1875 if (!ndlp) {
1876 if ((phba->fc_flag & FC_RSCN_MODE) &&
dea3101e
JB		 1877 ((lpfc_rscn_payload_check(phba, did) == 0)))
1878 return NULL;
1879 ndlp = (struct lpfc_nodelist *)
1880 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1881 if (!ndlp)
1882 return NULL;
1883 lpfc_nlp_init(phba, ndlp, did);
1884 ndlp->nlp_state = NLP_STE_NPR_NODE;
1885 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1886 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1887 return ndlp;
1888 }
c9f8735b 1889 if (phba->fc_flag & FC_RSCN_MODE) {
dea3101e
JB		 1890 if (lpfc_rscn_payload_check(phba, did)) {
1891 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
c9f8735b
JW		 1892
1893 /* Since this node is marked for discovery,
1894 * delay timeout is not needed.
1895 */
1896 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1897 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1898 spin_unlock_irq(phba->host->host_lock);
1899 del_timer_sync(&ndlp->nlp_delayfunc);
1900 spin_lock_irq(phba->host->host_lock);
1901 if (!list_empty(&ndlp->els_retry_evt.
2fe165b6 1902 evt_listp))
c9f8735b 1903 list_del_init(&ndlp->els_retry_evt.
2fe165b6 1904 evt_listp);
c9f8735b 1905 }
2fe165b6 1906 } else {
dea3101e
JB		 1907 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1908 ndlp = NULL;
1909 }
2fe165b6 1910 } else {
dea3101e 1911 flg = ndlp->nlp_flag & NLP_LIST_MASK;
c9f8735b 1912 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
dea3101e 1913 return NULL;
dea3101e
JB		 1914 ndlp->nlp_state = NLP_STE_NPR_NODE;
1915 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1916 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1917 }
1918 return ndlp;
1919}
1920
1921/* Build a list of nodes to discover based on the loopmap */
1922void
1923lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1924{
1925 int j;
1926 uint32_t alpa, index;
1927
1928 if (phba->hba_state <= LPFC_LINK_DOWN) {
1929 return;
1930 }
1931 if (phba->fc_topology != TOPOLOGY_LOOP) {
1932 return;
1933 }
1934
1935 /* Check for loop map present or not */
1936 if (phba->alpa_map[0]) {
1937 for (j = 1; j <= phba->alpa_map[0]; j++) {
1938 alpa = phba->alpa_map[j];
1939
1940 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1941 continue;
1942 }
1943 lpfc_setup_disc_node(phba, alpa);
1944 }
1945 } else {
1946 /* No alpamap, so try all alpa's */
1947 for (j = 0; j < FC_MAXLOOP; j++) {
1948 /* If cfg_scan_down is set, start from highest
1949 * ALPA (0xef) to lowest (0x1).
1950 */
1951 if (phba->cfg_scan_down)
1952 index = j;
1953 else
1954 index = FC_MAXLOOP - j - 1;
1955 alpa = lpfcAlpaArray[index];
1956 if ((phba->fc_myDID & 0xff) == alpa) {
1957 continue;
1958 }
1959
1960 lpfc_setup_disc_node(phba, alpa);
1961 }
1962 }
1963 return;
1964}
1965
1966/* Start Link up / RSCN discovery on NPR list */
1967void
1968lpfc_disc_start(struct lpfc_hba * phba)
1969{
1970 struct lpfc_sli *psli;
1971 LPFC_MBOXQ_t *mbox;
1972 struct lpfc_nodelist *ndlp, *next_ndlp;
1973 uint32_t did_changed, num_sent;
1974 uint32_t clear_la_pending;
1975 int rc;
1976
1977 psli = &phba->sli;
1978
1979 if (phba->hba_state <= LPFC_LINK_DOWN) {
1980 return;
1981 }
1982 if (phba->hba_state == LPFC_CLEAR_LA)
1983 clear_la_pending = 1;
1984 else
1985 clear_la_pending = 0;
1986
1987 if (phba->hba_state < LPFC_HBA_READY) {
1988 phba->hba_state = LPFC_DISC_AUTH;
1989 }
1990 lpfc_set_disctmo(phba);
1991
1992 if (phba->fc_prevDID == phba->fc_myDID) {
1993 did_changed = 0;
1994 } else {
1995 did_changed = 1;
1996 }
1997 phba->fc_prevDID = phba->fc_myDID;
1998 phba->num_disc_nodes = 0;
1999
2000 /* Start Discovery state <hba_state> */
2001 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2002 "%d:0202 Start Discovery hba state x%x "
2003 "Data: x%x x%x x%x\n",
2004 phba->brd_no, phba->hba_state, phba->fc_flag,
2005 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2006
2007 /* If our did changed, we MUST do PLOGI */
2008 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2009 nlp_listp) {
2010 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2011 if (did_changed) {
2012 spin_lock_irq(phba->host->host_lock);
2013 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2014 spin_unlock_irq(phba->host->host_lock);
2015 }
2016 }
2017 }
2018
2019 /* First do ADISCs - if any */
2020 num_sent = lpfc_els_disc_adisc(phba);
2021
2022 if (num_sent)
2023 return;
2024
2025 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2026 /* If we get here, there is nothing to ADISC */
2027 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2028 phba->hba_state = LPFC_CLEAR_LA;
2029 lpfc_clear_la(phba, mbox);
2030 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2031 rc = lpfc_sli_issue_mbox(phba, mbox,
2032 (MBX_NOWAIT | MBX_STOP_IOCB));
2033 if (rc == MBX_NOT_FINISHED) {
2034 mempool_free( mbox, phba->mbox_mem_pool);
2035 lpfc_disc_flush_list(phba);
2036 psli->ring[(psli->ip_ring)].flag &=
2037 ~LPFC_STOP_IOCB_EVENT;
2038 psli->ring[(psli->fcp_ring)].flag &=
2039 ~LPFC_STOP_IOCB_EVENT;
2040 psli->ring[(psli->next_ring)].flag &=
2041 ~LPFC_STOP_IOCB_EVENT;
2042 phba->hba_state = LPFC_HBA_READY;
2043 }
2044 }
2045 } else {
2046 /* Next do PLOGIs - if any */
2047 num_sent = lpfc_els_disc_plogi(phba);
2048
2049 if (num_sent)
2050 return;
2051
2052 if (phba->fc_flag & FC_RSCN_MODE) {
2053 /* Check to see if more RSCNs came in while we
2054 * were processing this one.
2055 */
2056 if ((phba->fc_rscn_id_cnt == 0) &&
2057 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2058 spin_lock_irq(phba->host->host_lock);
2059 phba->fc_flag &= ~FC_RSCN_MODE;
2060 spin_unlock_irq(phba->host->host_lock);
2fe165b6 2061 } else
dea3101e
JB		 2062 lpfc_els_handle_rscn(phba);
2063 }
2064 }
2065 return;
2066}
2067
2068/*
2069 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2070 * ring the match the sppecified nodelist.
2071 */
2072static void
2073lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2074{
2075 struct lpfc_sli *psli;
2076 IOCB_t *icmd;
2077 struct lpfc_iocbq *iocb, *next_iocb;
2078 struct lpfc_sli_ring *pring;
2079 struct lpfc_dmabuf *mp;
2080
2081 psli = &phba->sli;
2082 pring = &psli->ring[LPFC_ELS_RING];
2083
2084 /* Error matching iocb on txq or txcmplq
2085 * First check the txq.
2086 */
2087 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2088 if (iocb->context1 != ndlp) {
2089 continue;
2090 }
2091 icmd = &iocb->iocb;
2092 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2093 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2094
2095 list_del(&iocb->list);
2096 pring->txq_cnt--;
2097 lpfc_els_free_iocb(phba, iocb);
2098 }
2099 }
2100
2101 /* Next check the txcmplq */
2102 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2103 if (iocb->context1 != ndlp) {
2104 continue;
2105 }
2106 icmd = &iocb->iocb;
2107 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2108 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2109
2110 iocb->iocb_cmpl = NULL;
2111 /* context2 = cmd, context2->next = rsp, context3 =
2112 bpl */
2113 if (iocb->context2) {
2114 /* Free the response IOCB before handling the
2115 command. */
2116
2117 mp = (struct lpfc_dmabuf *) (iocb->context2);
2118 mp = list_get_first(&mp->list,
2119 struct lpfc_dmabuf,
2120 list);
2121 if (mp) {
2122 /* Delay before releasing rsp buffer to
2123 * give UNREG mbox a chance to take
2124 * effect.
2125 */
2126 list_add(&mp->list,
2127 &phba->freebufList);
2128 }
2129 lpfc_mbuf_free(phba,
2130 ((struct lpfc_dmabuf *)
2131 iocb->context2)->virt,
2132 ((struct lpfc_dmabuf *)
2133 iocb->context2)->phys);
2134 kfree(iocb->context2);
2135 }
2136
2137 if (iocb->context3) {
2138 lpfc_mbuf_free(phba,
2139 ((struct lpfc_dmabuf *)
2140 iocb->context3)->virt,
2141 ((struct lpfc_dmabuf *)
2142 iocb->context3)->phys);
2143 kfree(iocb->context3);
2144 }
2145 }
2146 }
2147
2148 return;
2149}
2150
2151void
2152lpfc_disc_flush_list(struct lpfc_hba * phba)
2153{
2154 struct lpfc_nodelist *ndlp, *next_ndlp;
2155
2156 if (phba->fc_plogi_cnt) {
2157 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2158 nlp_listp) {
2159 lpfc_free_tx(phba, ndlp);
2160 lpfc_nlp_remove(phba, ndlp);
2161 }
2162 }
2163 if (phba->fc_adisc_cnt) {
2164 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2165 nlp_listp) {
2166 lpfc_free_tx(phba, ndlp);
2167 lpfc_nlp_remove(phba, ndlp);
2168 }
2169 }
2170 return;
2171}
2172
2173/*****************************************************************************/
2174/*
2175 * NAME: lpfc_disc_timeout
2176 *
2177 * FUNCTION: Fibre Channel driver discovery timeout routine.
2178 *
2179 * EXECUTION ENVIRONMENT: interrupt only
2180 *
2181 * CALLED FROM:
2182 * Timer function
2183 *
2184 * RETURNS:
2185 * none
2186 */
2187/*****************************************************************************/
2188void
2189lpfc_disc_timeout(unsigned long ptr)
2190{
2191 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2192 unsigned long flags = 0;
2193
2194 if (unlikely(!phba))
2195 return;
2196
2197 spin_lock_irqsave(phba->host->host_lock, flags);
2198 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2199 phba->work_hba_events |= WORKER_DISC_TMO;
2200 if (phba->work_wait)
2201 wake_up(phba->work_wait);
2202 }
2203 spin_unlock_irqrestore(phba->host->host_lock, flags);
2204 return;
2205}
2206
2207static void
2208lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2209{
2210 struct lpfc_sli *psli;
c9f8735b 2211 struct lpfc_nodelist *ndlp, *next_ndlp;
dea3101e
JB		 2212 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2213 int rc, clrlaerr = 0;
2214
2215 if (unlikely(!phba))
2216 return;
2217
2218 if (!(phba->fc_flag & FC_DISC_TMO))
2219 return;
2220
2221 psli = &phba->sli;
2222
2223 spin_lock_irq(phba->host->host_lock);
2224 phba->fc_flag &= ~FC_DISC_TMO;
2225 spin_unlock_irq(phba->host->host_lock);
2226
2227 switch (phba->hba_state) {
2228
2229 case LPFC_LOCAL_CFG_LINK:
2230 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2231 /* FAN timeout */
2232 lpfc_printf_log(phba,
2233 KERN_WARNING,
2234 LOG_DISCOVERY,
2235 "%d:0221 FAN timeout\n",
2236 phba->brd_no);
2237
c9f8735b
JW		 2238 /* Start discovery by sending FLOGI, clean up old rpis */
2239 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2240 nlp_listp) {
2241 if (ndlp->nlp_type & NLP_FABRIC) {
2242 /* Clean up the ndlp on Fabric connections */
2243 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2fe165b6 2244 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2245 /* Fail outstanding IO now since device
2246 * is marked for PLOGI.
2247 */
2248 lpfc_unreg_rpi(phba, ndlp);
2249 }
2250 }
dea3101e
JB		 2251 phba->hba_state = LPFC_FLOGI;
2252 lpfc_set_disctmo(phba);
2253 lpfc_initial_flogi(phba);
2254 break;
2255
2256 case LPFC_FLOGI:
2257 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2258 /* Initial FLOGI timeout */
2259 lpfc_printf_log(phba,
2260 KERN_ERR,
2261 LOG_DISCOVERY,
2262 "%d:0222 Initial FLOGI timeout\n",
2263 phba->brd_no);
2264
2265 /* Assume no Fabric and go on with discovery.
2266 * Check for outstanding ELS FLOGI to abort.
2267 */
2268
2269 /* FLOGI failed, so just use loop map to make discovery list */
2270 lpfc_disc_list_loopmap(phba);
2271
2272 /* Start discovery */
2273 lpfc_disc_start(phba);
2274 break;
2275
2276 case LPFC_FABRIC_CFG_LINK:
2277 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2278 NameServer login */
2279 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2280 "%d:0223 Timeout while waiting for NameServer "
2281 "login\n", phba->brd_no);
2282
2283 /* Next look for NameServer ndlp */
2284 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2285 if (ndlp)
2286 lpfc_nlp_remove(phba, ndlp);
2287 /* Start discovery */
2288 lpfc_disc_start(phba);
2289 break;
2290
2291 case LPFC_NS_QRY:
2292 /* Check for wait for NameServer Rsp timeout */
2293 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2294 "%d:0224 NameServer Query timeout "
2295 "Data: x%x x%x\n",
2296 phba->brd_no,
2297 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2298
2299 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2300 NameServer_DID);
2301 if (ndlp) {
2302 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2303 /* Try it one more time */
2304 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2305 if (rc == 0)
2306 break;
2307 }
2308 phba->fc_ns_retry = 0;
2309 }
2310
2311 /* Nothing to authenticate, so CLEAR_LA right now */
2312 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2313 if (!clearlambox) {
2314 clrlaerr = 1;
2315 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2316 "%d:0226 Device Discovery "
2317 "completion error\n",
2318 phba->brd_no);
2319 phba->hba_state = LPFC_HBA_ERROR;
2320 break;
2321 }
2322
2323 phba->hba_state = LPFC_CLEAR_LA;
2324 lpfc_clear_la(phba, clearlambox);
2325 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2326 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2327 (MBX_NOWAIT | MBX_STOP_IOCB));
2328 if (rc == MBX_NOT_FINISHED) {
2329 mempool_free(clearlambox, phba->mbox_mem_pool);
2330 clrlaerr = 1;
2331 break;
2332 }
2333
2334 /* Setup and issue mailbox INITIALIZE LINK command */
2335 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2336 if (!initlinkmbox) {
2337 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2338 "%d:0226 Device Discovery "
2339 "completion error\n",
2340 phba->brd_no);
2341 phba->hba_state = LPFC_HBA_ERROR;
2342 break;
2343 }
2344
2345 lpfc_linkdown(phba);
2346 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2347 phba->cfg_link_speed);
2348 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2349 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2350 (MBX_NOWAIT | MBX_STOP_IOCB));
2351 if (rc == MBX_NOT_FINISHED)
2352 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2353
2354 break;
2355
2356 case LPFC_DISC_AUTH:
2357 /* Node Authentication timeout */
2358 lpfc_printf_log(phba,
2359 KERN_ERR,
2360 LOG_DISCOVERY,
2361 "%d:0227 Node Authentication timeout\n",
2362 phba->brd_no);
2363 lpfc_disc_flush_list(phba);
2364 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2365 if (!clearlambox) {
2366 clrlaerr = 1;
2367 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2368 "%d:0226 Device Discovery "
2369 "completion error\n",
2370 phba->brd_no);
2371 phba->hba_state = LPFC_HBA_ERROR;
2372 break;
2373 }
2374 phba->hba_state = LPFC_CLEAR_LA;
2375 lpfc_clear_la(phba, clearlambox);
2376 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2377 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2378 (MBX_NOWAIT | MBX_STOP_IOCB));
2379 if (rc == MBX_NOT_FINISHED) {
2380 mempool_free(clearlambox, phba->mbox_mem_pool);
2381 clrlaerr = 1;
2382 }
2383 break;
2384
2385 case LPFC_CLEAR_LA:
2386 /* CLEAR LA timeout */
2387 lpfc_printf_log(phba,
2388 KERN_ERR,
2389 LOG_DISCOVERY,
2390 "%d:0228 CLEAR LA timeout\n",
2391 phba->brd_no);
2392 clrlaerr = 1;
2393 break;
2394
2395 case LPFC_HBA_READY:
2396 if (phba->fc_flag & FC_RSCN_MODE) {
2397 lpfc_printf_log(phba,
2398 KERN_ERR,
2399 LOG_DISCOVERY,
2400 "%d:0231 RSCN timeout Data: x%x x%x\n",
2401 phba->brd_no,
2402 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2403
2404 /* Cleanup any outstanding ELS commands */
2405 lpfc_els_flush_cmd(phba);
2406
2407 lpfc_els_flush_rscn(phba);
2408 lpfc_disc_flush_list(phba);
2409 }
2410 break;
2411 }
2412
2413 if (clrlaerr) {
2414 lpfc_disc_flush_list(phba);
2415 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2416 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2417 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2418 phba->hba_state = LPFC_HBA_READY;
2419 }
2420
2421 return;
2422}
2423
2424static void
2425lpfc_nodev_timeout(unsigned long ptr)
2426{
2427 struct lpfc_hba *phba;
2428 struct lpfc_nodelist *ndlp;
2429 unsigned long iflag;
2430 struct lpfc_work_evt *evtp;
2431
2432 ndlp = (struct lpfc_nodelist *)ptr;
2433 phba = ndlp->nlp_phba;
2434 evtp = &ndlp->nodev_timeout_evt;
2435 spin_lock_irqsave(phba->host->host_lock, iflag);
2436
2437 if (!list_empty(&evtp->evt_listp)) {
2438 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2439 return;
2440 }
2441 evtp->evt_arg1 = ndlp;
2442 evtp->evt = LPFC_EVT_NODEV_TMO;
2443 list_add_tail(&evtp->evt_listp, &phba->work_list);
2444 if (phba->work_wait)
2445 wake_up(phba->work_wait);
2446
2447 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2448 return;
2449}
2450
2451
2452/*
2453 * This routine handles processing a NameServer REG_LOGIN mailbox
2454 * command upon completion. It is setup in the LPFC_MBOXQ
2455 * as the completion routine when the command is
2456 * handed off to the SLI layer.
2457 */
2458void
2459lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2460{
2461 struct lpfc_sli *psli;
2462 MAILBOX_t *mb;
2463 struct lpfc_dmabuf *mp;
2464 struct lpfc_nodelist *ndlp;
2465
2466 psli = &phba->sli;
2467 mb = &pmb->mb;
2468
2469 ndlp = (struct lpfc_nodelist *) pmb->context2;
2470 mp = (struct lpfc_dmabuf *) (pmb->context1);
2471
2472 pmb->context1 = NULL;
2473
dea3101e 2474 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e
JB		 2475 ndlp->nlp_type |= NLP_FABRIC;
2476 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2477 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2478
2479 /* Start issuing Fabric-Device Management Interface (FDMI)
2480 * command to 0xfffffa (FDMI well known port)
2481 */
2482 if (phba->cfg_fdmi_on == 1) {
2483 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2484 } else {
2485 /*
2486 * Delay issuing FDMI command if fdmi-on=2
2487 * (supporting RPA/hostnmae)
2488 */
2489 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2490 }
2491
2492 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2493 kfree(mp);
2494 mempool_free( pmb, phba->mbox_mem_pool);
2495
2496 return;
2497}
2498
2499/*
21568f53
JSEC		 2500 * This routine looks up the ndlp lists
2501 * for the given RPI. If rpi found
dea3101e 2502 * it return the node list pointer
21568f53 2503 * else return NULL.
dea3101e
JB		 2504 */
2505struct lpfc_nodelist *
2506lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2507{
21568f53
JSEC		 2508 struct lpfc_nodelist *ndlp;
2509 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2510 &phba->fc_nlpmap_list,
2511 &phba->fc_plogi_list,
2512 &phba->fc_adisc_list,
2513 &phba->fc_reglogin_list};
2514 int i;
dea3101e 2515
21568f53
JSEC		 2516 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2517 list_for_each_entry(ndlp, lists[i], nlp_listp)
2518 if (ndlp->nlp_rpi == rpi)
2fe165b6 2519 return ndlp;
dea3101e 2520
21568f53 2521 return NULL;
dea3101e
JB		 2522}
2523
2524void
2525lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2526 uint32_t did)
2527{
2528 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2529 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2530 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2531 init_timer(&ndlp->nlp_tmofunc);
2532 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2533 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2534 init_timer(&ndlp->nlp_delayfunc);
2535 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2536 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2537 ndlp->nlp_DID = did;
2538 ndlp->nlp_phba = phba;
2539 ndlp->nlp_sid = NLP_NO_SID;
2540 return;
2541}
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