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[SCSI] lpfc 8.1.4 : Fix Discovery processing for NPorts that change their NPortId...
[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
71 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
72
73 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 74 warn_on = 1;
dea3101e 75 /* flush the target */
76 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
77 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
78 }
79 spin_unlock_irq(phba->host->host_lock);
80
6e8215e4
JSEC		 81 if (warn_on) {
82 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
488d1469
JS		 83 "%d:0203 Nodev timeout on "
84 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
85 "NPort x%x Data: x%x x%x x%x\n",
86 phba->brd_no,
87 *name, *(name+1), *(name+2), *(name+3),
88 *(name+4), *(name+5), *(name+6), *(name+7),
89 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 90 ndlp->nlp_state, ndlp->nlp_rpi);
91 } else {
92 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
488d1469
JS		 93 "%d:0204 Nodev timeout on "
94 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
95 "NPort x%x Data: x%x x%x x%x\n",
96 phba->brd_no,
97 *name, *(name+1), *(name+2), *(name+3),
98 *(name+4), *(name+5), *(name+6), *(name+7),
99 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 100 ndlp->nlp_state, ndlp->nlp_rpi);
101 }
102
dea3101e 103 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
104 return;
105}
106
107static void
108lpfc_work_list_done(struct lpfc_hba * phba)
109{
110 struct lpfc_work_evt *evtp = NULL;
111 struct lpfc_nodelist *ndlp;
112 int free_evt;
113
114 spin_lock_irq(phba->host->host_lock);
115 while(!list_empty(&phba->work_list)) {
116 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
117 evt_listp);
118 spin_unlock_irq(phba->host->host_lock);
119 free_evt = 1;
2fe165b6 120 switch (evtp->evt) {
dea3101e 121 case LPFC_EVT_NODEV_TMO:
122 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
123 lpfc_process_nodev_timeout(phba, ndlp);
124 free_evt = 0;
125 break;
126 case LPFC_EVT_ELS_RETRY:
127 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
128 lpfc_els_retry_delay_handler(ndlp);
129 free_evt = 0;
130 break;
131 case LPFC_EVT_ONLINE:
41415862
JW		 132 if (phba->hba_state < LPFC_LINK_DOWN)
133 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
134 else
135 *(int *)(evtp->evt_arg1) = 0;
dea3101e 136 complete((struct completion *)(evtp->evt_arg2));
137 break;
138 case LPFC_EVT_OFFLINE:
41415862
JW		 139 if (phba->hba_state >= LPFC_LINK_DOWN)
140 lpfc_offline(phba);
141 lpfc_sli_brdrestart(phba);
142 *(int *)(evtp->evt_arg1) =
143 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
144 complete((struct completion *)(evtp->evt_arg2));
145 break;
146 case LPFC_EVT_WARM_START:
147 if (phba->hba_state >= LPFC_LINK_DOWN)
148 lpfc_offline(phba);
149 lpfc_sli_brdreset(phba);
150 lpfc_hba_down_post(phba);
151 *(int *)(evtp->evt_arg1) =
152 lpfc_sli_brdready(phba, HS_MBRDY);
153 complete((struct completion *)(evtp->evt_arg2));
154 break;
155 case LPFC_EVT_KILL:
156 if (phba->hba_state >= LPFC_LINK_DOWN)
157 lpfc_offline(phba);
158 *(int *)(evtp->evt_arg1) = lpfc_sli_brdkill(phba);
dea3101e 159 complete((struct completion *)(evtp->evt_arg2));
160 break;
161 }
162 if (free_evt)
163 kfree(evtp);
164 spin_lock_irq(phba->host->host_lock);
165 }
166 spin_unlock_irq(phba->host->host_lock);
167
168}
169
170static void
171lpfc_work_done(struct lpfc_hba * phba)
172{
173 struct lpfc_sli_ring *pring;
174 int i;
175 uint32_t ha_copy;
176 uint32_t control;
177 uint32_t work_hba_events;
178
179 spin_lock_irq(phba->host->host_lock);
180 ha_copy = phba->work_ha;
181 phba->work_ha = 0;
182 work_hba_events=phba->work_hba_events;
183 spin_unlock_irq(phba->host->host_lock);
184
2fe165b6 185 if (ha_copy & HA_ERATT)
dea3101e 186 lpfc_handle_eratt(phba);
187
2fe165b6 188 if (ha_copy & HA_MBATT)
dea3101e 189 lpfc_sli_handle_mb_event(phba);
190
2fe165b6 191 if (ha_copy & HA_LATT)
dea3101e 192 lpfc_handle_latt(phba);
193
194 if (work_hba_events & WORKER_DISC_TMO)
195 lpfc_disc_timeout_handler(phba);
196
197 if (work_hba_events & WORKER_ELS_TMO)
198 lpfc_els_timeout_handler(phba);
199
200 if (work_hba_events & WORKER_MBOX_TMO)
201 lpfc_mbox_timeout_handler(phba);
202
203 if (work_hba_events & WORKER_FDMI_TMO)
204 lpfc_fdmi_tmo_handler(phba);
205
206 spin_lock_irq(phba->host->host_lock);
207 phba->work_hba_events &= ~work_hba_events;
208 spin_unlock_irq(phba->host->host_lock);
209
210 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
211 pring = &phba->sli.ring[i];
212 if ((ha_copy & HA_RXATT)
213 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
214 if (pring->flag & LPFC_STOP_IOCB_MASK) {
215 pring->flag |= LPFC_DEFERRED_RING_EVENT;
216 } else {
217 lpfc_sli_handle_slow_ring_event(phba, pring,
218 (ha_copy &
219 HA_RXMASK));
220 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
221 }
222 /*
223 * Turn on Ring interrupts
224 */
225 spin_lock_irq(phba->host->host_lock);
226 control = readl(phba->HCregaddr);
227 control |= (HC_R0INT_ENA << i);
228 writel(control, phba->HCregaddr);
229 readl(phba->HCregaddr); /* flush */
230 spin_unlock_irq(phba->host->host_lock);
231 }
232 }
233
234 lpfc_work_list_done (phba);
235
236}
237
238static int
239check_work_wait_done(struct lpfc_hba *phba) {
240
241 spin_lock_irq(phba->host->host_lock);
242 if (phba->work_ha ||
243 phba->work_hba_events ||
244 (!list_empty(&phba->work_list)) ||
245 kthread_should_stop()) {
246 spin_unlock_irq(phba->host->host_lock);
247 return 1;
248 } else {
249 spin_unlock_irq(phba->host->host_lock);
250 return 0;
251 }
252}
253
254int
255lpfc_do_work(void *p)
256{
257 struct lpfc_hba *phba = p;
258 int rc;
259 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
260
261 set_user_nice(current, -20);
262 phba->work_wait = &work_waitq;
263
264 while (1) {
265
266 rc = wait_event_interruptible(work_waitq,
267 check_work_wait_done(phba));
268 BUG_ON(rc);
269
270 if (kthread_should_stop())
271 break;
272
273 lpfc_work_done(phba);
274
275 }
276 phba->work_wait = NULL;
277 return 0;
278}
279
280/*
281 * This is only called to handle FC worker events. Since this a rare
282 * occurance, we allocate a struct lpfc_work_evt structure here instead of
283 * embedding it in the IOCB.
284 */
285int
286lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
287 uint32_t evt)
288{
289 struct lpfc_work_evt *evtp;
290
291 /*
292 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
293 * be queued to worker thread for processing
294 */
295 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
296 if (!evtp)
297 return 0;
298
299 evtp->evt_arg1 = arg1;
300 evtp->evt_arg2 = arg2;
301 evtp->evt = evt;
302
303 list_add_tail(&evtp->evt_listp, &phba->work_list);
304 spin_lock_irq(phba->host->host_lock);
305 if (phba->work_wait)
306 wake_up(phba->work_wait);
307 spin_unlock_irq(phba->host->host_lock);
308
309 return 1;
310}
311
312int
313lpfc_linkdown(struct lpfc_hba * phba)
314{
315 struct lpfc_sli *psli;
316 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b 317 struct list_head *listp, *node_list[7];
dea3101e 318 LPFC_MBOXQ_t *mb;
319 int rc, i;
320
321 psli = &phba->sli;
c9f8735b 322 /* sysfs or selective reset may call this routine to clean up */
5024ab17
JW		 323 if (phba->hba_state >= LPFC_LINK_DOWN) {
324 if (phba->hba_state == LPFC_LINK_DOWN)
325 return 0;
326
c9f8735b
JW		 327 spin_lock_irq(phba->host->host_lock);
328 phba->hba_state = LPFC_LINK_DOWN;
329 spin_unlock_irq(phba->host->host_lock);
330 }
dea3101e 331
332 /* Clean up any firmware default rpi's */
333 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
334 lpfc_unreg_did(phba, 0xffffffff, mb);
335 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
336 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
337 == MBX_NOT_FINISHED) {
338 mempool_free( mb, phba->mbox_mem_pool);
339 }
340 }
341
342 /* Cleanup any outstanding RSCN activity */
343 lpfc_els_flush_rscn(phba);
344
345 /* Cleanup any outstanding ELS commands */
346 lpfc_els_flush_cmd(phba);
347
348 /* Issue a LINK DOWN event to all nodes */
349 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
350 node_list[1] = &phba->fc_nlpmap_list;
351 node_list[2] = &phba->fc_nlpunmap_list;
352 node_list[3] = &phba->fc_prli_list;
353 node_list[4] = &phba->fc_reglogin_list;
354 node_list[5] = &phba->fc_adisc_list;
355 node_list[6] = &phba->fc_plogi_list;
356 for (i = 0; i < 7; i++) {
357 listp = node_list[i];
358 if (list_empty(listp))
359 continue;
360
361 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
c9f8735b
JW		 362
363 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
364 NLP_EVT_DEVICE_RECOVERY);
365
366 /* Check config parameter use-adisc or FCP-2 */
367 if ((rc != NLP_STE_FREED_NODE) &&
368 (phba->cfg_use_adisc == 0) &&
2fe165b6 369 !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
c9f8735b
JW		 370 /* We know we will have to relogin, so
371 * unreglogin the rpi right now to fail
372 * any outstanding I/Os quickly.
373 */
374 lpfc_unreg_rpi(phba, ndlp);
dea3101e 375 }
376 }
377 }
378
379 /* free any ndlp's on unused list */
380 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
381 nlp_listp) {
382 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
383 }
384
385 /* Setup myDID for link up if we are in pt2pt mode */
386 if (phba->fc_flag & FC_PT2PT) {
387 phba->fc_myDID = 0;
388 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
389 lpfc_config_link(phba, mb);
390 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
391 if (lpfc_sli_issue_mbox
392 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
393 == MBX_NOT_FINISHED) {
394 mempool_free( mb, phba->mbox_mem_pool);
395 }
396 }
397 spin_lock_irq(phba->host->host_lock);
398 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
399 spin_unlock_irq(phba->host->host_lock);
400 }
401 spin_lock_irq(phba->host->host_lock);
402 phba->fc_flag &= ~FC_LBIT;
403 spin_unlock_irq(phba->host->host_lock);
404
405 /* Turn off discovery timer if its running */
406 lpfc_can_disctmo(phba);
407
408 /* Must process IOCBs on all rings to handle ABORTed I/Os */
2fe165b6 409 return 0;
dea3101e 410}
411
412static int
413lpfc_linkup(struct lpfc_hba * phba)
414{
415 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b
JW		 416 struct list_head *listp, *node_list[7];
417 int i;
dea3101e 418
419 spin_lock_irq(phba->host->host_lock);
420 phba->hba_state = LPFC_LINK_UP;
421 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
422 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
423 phba->fc_flag |= FC_NDISC_ACTIVE;
424 phba->fc_ns_retry = 0;
425 spin_unlock_irq(phba->host->host_lock);
426
427
c9f8735b
JW		 428 node_list[0] = &phba->fc_plogi_list;
429 node_list[1] = &phba->fc_adisc_list;
430 node_list[2] = &phba->fc_reglogin_list;
431 node_list[3] = &phba->fc_prli_list;
432 node_list[4] = &phba->fc_nlpunmap_list;
433 node_list[5] = &phba->fc_nlpmap_list;
434 node_list[6] = &phba->fc_npr_list;
435 for (i = 0; i < 7; i++) {
436 listp = node_list[i];
437 if (list_empty(listp))
438 continue;
439
440 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
441 if (phba->fc_flag & FC_LBIT) {
442 if (ndlp->nlp_type & NLP_FABRIC) {
443 /* On Linkup its safe to clean up the
444 * ndlp from Fabric connections.
445 */
446 lpfc_nlp_list(phba, ndlp,
447 NLP_UNUSED_LIST);
448 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
449 /* Fail outstanding IO now since device
450 * is marked for PLOGI.
451 */
452 lpfc_unreg_rpi(phba, ndlp);
453 }
454 }
dea3101e 455 }
456 }
457
458 /* free any ndlp's on unused list */
459 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
460 nlp_listp) {
461 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
462 }
463
464 return 0;
465}
466
467/*
468 * This routine handles processing a CLEAR_LA mailbox
469 * command upon completion. It is setup in the LPFC_MBOXQ
470 * as the completion routine when the command is
471 * handed off to the SLI layer.
472 */
473void
474lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
475{
476 struct lpfc_sli *psli;
477 MAILBOX_t *mb;
478 uint32_t control;
479
480 psli = &phba->sli;
481 mb = &pmb->mb;
482 /* Since we don't do discovery right now, turn these off here */
483 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
484 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
485 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
486
487 /* Check for error */
488 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
489 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
490 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
491 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
492 "state x%x\n",
493 phba->brd_no, mb->mbxStatus, phba->hba_state);
494
495 phba->hba_state = LPFC_HBA_ERROR;
496 goto out;
497 }
498
499 if (phba->fc_flag & FC_ABORT_DISCOVERY)
500 goto out;
501
502 phba->num_disc_nodes = 0;
503 /* go thru NPR list and issue ELS PLOGIs */
504 if (phba->fc_npr_cnt) {
505 lpfc_els_disc_plogi(phba);
506 }
507
2fe165b6 508 if (!phba->num_disc_nodes) {
dea3101e 509 spin_lock_irq(phba->host->host_lock);
510 phba->fc_flag &= ~FC_NDISC_ACTIVE;
511 spin_unlock_irq(phba->host->host_lock);
512 }
513
514 phba->hba_state = LPFC_HBA_READY;
515
516out:
517 /* Device Discovery completes */
518 lpfc_printf_log(phba,
519 KERN_INFO,
520 LOG_DISCOVERY,
521 "%d:0225 Device Discovery completes\n",
522 phba->brd_no);
523
524 mempool_free( pmb, phba->mbox_mem_pool);
525
526 spin_lock_irq(phba->host->host_lock);
527 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
528 if (phba->fc_flag & FC_ESTABLISH_LINK) {
529 phba->fc_flag &= ~FC_ESTABLISH_LINK;
530 }
531 spin_unlock_irq(phba->host->host_lock);
532
533 del_timer_sync(&phba->fc_estabtmo);
534
535 lpfc_can_disctmo(phba);
536
537 /* turn on Link Attention interrupts */
538 spin_lock_irq(phba->host->host_lock);
539 psli->sli_flag |= LPFC_PROCESS_LA;
540 control = readl(phba->HCregaddr);
541 control |= HC_LAINT_ENA;
542 writel(control, phba->HCregaddr);
543 readl(phba->HCregaddr); /* flush */
544 spin_unlock_irq(phba->host->host_lock);
545
546 return;
547}
548
549static void
25594c6b 550lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 551{
25594c6b
JW		 552 struct lpfc_sli *psli = &phba->sli;
553 int rc;
dea3101e 554
25594c6b 555 if (pmb->mb.mbxStatus)
dea3101e 556 goto out;
dea3101e 557
25594c6b
JW		 558 mempool_free(pmb, phba->mbox_mem_pool);
559
560 if (phba->fc_topology == TOPOLOGY_LOOP &&
561 phba->fc_flag & FC_PUBLIC_LOOP &&
562 !(phba->fc_flag & FC_LBIT)) {
563 /* Need to wait for FAN - use discovery timer
564 * for timeout. hba_state is identically
565 * LPFC_LOCAL_CFG_LINK while waiting for FAN
566 */
567 lpfc_set_disctmo(phba);
568 return;
dea3101e 569 }
570
25594c6b
JW		 571 /* Start discovery by sending a FLOGI. hba_state is identically
572 * LPFC_FLOGI while waiting for FLOGI cmpl
573 */
574 phba->hba_state = LPFC_FLOGI;
575 lpfc_set_disctmo(phba);
576 lpfc_initial_flogi(phba);
577 return;
dea3101e 578
579out:
25594c6b
JW		 580 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
581 "%d:0306 CONFIG_LINK mbxStatus error x%x "
582 "HBA state x%x\n",
583 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
584
585 lpfc_linkdown(phba);
586
587 phba->hba_state = LPFC_HBA_ERROR;
588
589 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dea3101e 590 "%d:0200 CONFIG_LINK bad hba state x%x\n",
591 phba->brd_no, phba->hba_state);
592
25594c6b
JW		 593 lpfc_clear_la(phba, pmb);
594 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
595 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
596 if (rc == MBX_NOT_FINISHED) {
597 mempool_free(pmb, phba->mbox_mem_pool);
598 lpfc_disc_flush_list(phba);
599 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
600 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
601 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
602 phba->hba_state = LPFC_HBA_READY;
dea3101e 603 }
604 return;
605}
606
607static void
608lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
609{
610 struct lpfc_sli *psli = &phba->sli;
611 MAILBOX_t *mb = &pmb->mb;
612 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
613
614
615 /* Check for error */
616 if (mb->mbxStatus) {
617 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
618 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
619 "%d:0319 READ_SPARAM mbxStatus error x%x "
620 "hba state x%x>\n",
621 phba->brd_no, mb->mbxStatus, phba->hba_state);
622
623 lpfc_linkdown(phba);
624 phba->hba_state = LPFC_HBA_ERROR;
625 goto out;
626 }
627
628 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
629 sizeof (struct serv_parm));
630 memcpy((uint8_t *) & phba->fc_nodename,
631 (uint8_t *) & phba->fc_sparam.nodeName,
632 sizeof (struct lpfc_name));
633 memcpy((uint8_t *) & phba->fc_portname,
634 (uint8_t *) & phba->fc_sparam.portName,
635 sizeof (struct lpfc_name));
636 lpfc_mbuf_free(phba, mp->virt, mp->phys);
637 kfree(mp);
638 mempool_free( pmb, phba->mbox_mem_pool);
639 return;
640
641out:
642 pmb->context1 = NULL;
643 lpfc_mbuf_free(phba, mp->virt, mp->phys);
644 kfree(mp);
645 if (phba->hba_state != LPFC_CLEAR_LA) {
646 lpfc_clear_la(phba, pmb);
647 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
648 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
649 == MBX_NOT_FINISHED) {
650 mempool_free( pmb, phba->mbox_mem_pool);
651 lpfc_disc_flush_list(phba);
652 psli->ring[(psli->ip_ring)].flag &=
653 ~LPFC_STOP_IOCB_EVENT;
654 psli->ring[(psli->fcp_ring)].flag &=
655 ~LPFC_STOP_IOCB_EVENT;
656 psli->ring[(psli->next_ring)].flag &=
657 ~LPFC_STOP_IOCB_EVENT;
658 phba->hba_state = LPFC_HBA_READY;
659 }
660 } else {
661 mempool_free( pmb, phba->mbox_mem_pool);
662 }
663 return;
664}
665
666static void
667lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
668{
669 int i;
670 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
671 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
672 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
673
674 spin_lock_irq(phba->host->host_lock);
2fe165b6 675 switch (la->UlnkSpeed) {
dea3101e 676 case LA_1GHZ_LINK:
677 phba->fc_linkspeed = LA_1GHZ_LINK;
678 break;
679 case LA_2GHZ_LINK:
680 phba->fc_linkspeed = LA_2GHZ_LINK;
681 break;
682 case LA_4GHZ_LINK:
683 phba->fc_linkspeed = LA_4GHZ_LINK;
684 break;
685 default:
686 phba->fc_linkspeed = LA_UNKNW_LINK;
687 break;
688 }
689
690 phba->fc_topology = la->topology;
691
692 if (phba->fc_topology == TOPOLOGY_LOOP) {
693 /* Get Loop Map information */
694
695 if (la->il)
696 phba->fc_flag |= FC_LBIT;
697
698 phba->fc_myDID = la->granted_AL_PA;
699 i = la->un.lilpBde64.tus.f.bdeSize;
700
701 if (i == 0) {
702 phba->alpa_map[0] = 0;
703 } else {
704 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
705 int numalpa, j, k;
706 union {
707 uint8_t pamap[16];
708 struct {
709 uint32_t wd1;
710 uint32_t wd2;
711 uint32_t wd3;
712 uint32_t wd4;
713 } pa;
714 } un;
715 numalpa = phba->alpa_map[0];
716 j = 0;
717 while (j < numalpa) {
718 memset(un.pamap, 0, 16);
719 for (k = 1; j < numalpa; k++) {
720 un.pamap[k - 1] =
721 phba->alpa_map[j + 1];
722 j++;
723 if (k == 16)
724 break;
725 }
726 /* Link Up Event ALPA map */
727 lpfc_printf_log(phba,
728 KERN_WARNING,
729 LOG_LINK_EVENT,
730 "%d:1304 Link Up Event "
731 "ALPA map Data: x%x "
732 "x%x x%x x%x\n",
733 phba->brd_no,
734 un.pa.wd1, un.pa.wd2,
735 un.pa.wd3, un.pa.wd4);
736 }
737 }
738 }
739 } else {
740 phba->fc_myDID = phba->fc_pref_DID;
741 phba->fc_flag |= FC_LBIT;
742 }
743 spin_unlock_irq(phba->host->host_lock);
744
745 lpfc_linkup(phba);
746 if (sparam_mbox) {
747 lpfc_read_sparam(phba, sparam_mbox);
748 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
749 lpfc_sli_issue_mbox(phba, sparam_mbox,
750 (MBX_NOWAIT | MBX_STOP_IOCB));
751 }
752
753 if (cfglink_mbox) {
754 phba->hba_state = LPFC_LOCAL_CFG_LINK;
755 lpfc_config_link(phba, cfglink_mbox);
25594c6b 756 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
dea3101e 757 lpfc_sli_issue_mbox(phba, cfglink_mbox,
758 (MBX_NOWAIT | MBX_STOP_IOCB));
759 }
760}
761
762static void
763lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
764 uint32_t control;
765 struct lpfc_sli *psli = &phba->sli;
766
767 lpfc_linkdown(phba);
768
769 /* turn on Link Attention interrupts - no CLEAR_LA needed */
770 spin_lock_irq(phba->host->host_lock);
771 psli->sli_flag |= LPFC_PROCESS_LA;
772 control = readl(phba->HCregaddr);
773 control |= HC_LAINT_ENA;
774 writel(control, phba->HCregaddr);
775 readl(phba->HCregaddr); /* flush */
776 spin_unlock_irq(phba->host->host_lock);
777}
778
779/*
780 * This routine handles processing a READ_LA mailbox
781 * command upon completion. It is setup in the LPFC_MBOXQ
782 * as the completion routine when the command is
783 * handed off to the SLI layer.
784 */
785void
786lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
787{
788 READ_LA_VAR *la;
789 MAILBOX_t *mb = &pmb->mb;
790 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
791
792 /* Check for error */
793 if (mb->mbxStatus) {
794 lpfc_printf_log(phba,
795 KERN_INFO,
796 LOG_LINK_EVENT,
797 "%d:1307 READ_LA mbox error x%x state x%x\n",
798 phba->brd_no,
799 mb->mbxStatus, phba->hba_state);
800 lpfc_mbx_issue_link_down(phba);
801 phba->hba_state = LPFC_HBA_ERROR;
802 goto lpfc_mbx_cmpl_read_la_free_mbuf;
803 }
804
805 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
806
807 memcpy(&phba->alpa_map[0], mp->virt, 128);
808
c9f8735b
JW		 809 spin_lock_irq(phba->host->host_lock);
810 if (la->pb)
811 phba->fc_flag |= FC_BYPASSED_MODE;
812 else
813 phba->fc_flag &= ~FC_BYPASSED_MODE;
814 spin_unlock_irq(phba->host->host_lock);
815
dea3101e 816 if (((phba->fc_eventTag + 1) < la->eventTag) ||
817 (phba->fc_eventTag == la->eventTag)) {
818 phba->fc_stat.LinkMultiEvent++;
819 if (la->attType == AT_LINK_UP) {
820 if (phba->fc_eventTag != 0)
821 lpfc_linkdown(phba);
822 }
823 }
824
825 phba->fc_eventTag = la->eventTag;
826
827 if (la->attType == AT_LINK_UP) {
828 phba->fc_stat.LinkUp++;
829 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
830 "%d:1303 Link Up Event x%x received "
831 "Data: x%x x%x x%x x%x\n",
832 phba->brd_no, la->eventTag, phba->fc_eventTag,
833 la->granted_AL_PA, la->UlnkSpeed,
834 phba->alpa_map[0]);
835 lpfc_mbx_process_link_up(phba, la);
836 } else {
837 phba->fc_stat.LinkDown++;
838 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
839 "%d:1305 Link Down Event x%x received "
840 "Data: x%x x%x x%x\n",
841 phba->brd_no, la->eventTag, phba->fc_eventTag,
842 phba->hba_state, phba->fc_flag);
843 lpfc_mbx_issue_link_down(phba);
844 }
845
846lpfc_mbx_cmpl_read_la_free_mbuf:
847 lpfc_mbuf_free(phba, mp->virt, mp->phys);
848 kfree(mp);
849 mempool_free(pmb, phba->mbox_mem_pool);
850 return;
851}
852
853/*
854 * This routine handles processing a REG_LOGIN mailbox
855 * command upon completion. It is setup in the LPFC_MBOXQ
856 * as the completion routine when the command is
857 * handed off to the SLI layer.
858 */
859void
860lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
861{
862 struct lpfc_sli *psli;
863 MAILBOX_t *mb;
864 struct lpfc_dmabuf *mp;
865 struct lpfc_nodelist *ndlp;
866
867 psli = &phba->sli;
868 mb = &pmb->mb;
869
870 ndlp = (struct lpfc_nodelist *) pmb->context2;
871 mp = (struct lpfc_dmabuf *) (pmb->context1);
872
873 pmb->context1 = NULL;
874
875 /* Good status, call state machine */
876 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
877 lpfc_mbuf_free(phba, mp->virt, mp->phys);
878 kfree(mp);
879 mempool_free( pmb, phba->mbox_mem_pool);
880
881 return;
882}
883
884/*
885 * This routine handles processing a Fabric REG_LOGIN mailbox
886 * command upon completion. It is setup in the LPFC_MBOXQ
887 * as the completion routine when the command is
888 * handed off to the SLI layer.
889 */
890void
891lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
892{
893 struct lpfc_sli *psli;
894 MAILBOX_t *mb;
895 struct lpfc_dmabuf *mp;
896 struct lpfc_nodelist *ndlp;
897 struct lpfc_nodelist *ndlp_fdmi;
898
899
900 psli = &phba->sli;
901 mb = &pmb->mb;
902
903 ndlp = (struct lpfc_nodelist *) pmb->context2;
904 mp = (struct lpfc_dmabuf *) (pmb->context1);
905
906 if (mb->mbxStatus) {
907 lpfc_mbuf_free(phba, mp->virt, mp->phys);
908 kfree(mp);
909 mempool_free( pmb, phba->mbox_mem_pool);
910 mempool_free( ndlp, phba->nlp_mem_pool);
911
912 /* FLOGI failed, so just use loop map to make discovery list */
913 lpfc_disc_list_loopmap(phba);
914
915 /* Start discovery */
916 lpfc_disc_start(phba);
917 return;
918 }
919
920 pmb->context1 = NULL;
921
dea3101e 922 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 923 ndlp->nlp_type |= NLP_FABRIC;
924 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
925 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
926
927 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
928 /* This NPort has been assigned an NPort_ID by the fabric as a
929 * result of the completed fabric login. Issue a State Change
930 * Registration (SCR) ELS request to the fabric controller
931 * (SCR_DID) so that this NPort gets RSCN events from the
932 * fabric.
933 */
934 lpfc_issue_els_scr(phba, SCR_DID, 0);
935
c9f8735b
JW		 936 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
937 if (!ndlp) {
938 /* Allocate a new node instance. If the pool is empty,
939 * start the discovery process and skip the Nameserver
940 * login process. This is attempted again later on.
941 * Otherwise, issue a Port Login (PLOGI) to NameServer.
942 */
943 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
944 if (!ndlp) {
945 lpfc_disc_start(phba);
946 lpfc_mbuf_free(phba, mp->virt, mp->phys);
947 kfree(mp);
948 mempool_free( pmb, phba->mbox_mem_pool);
949 return;
950 } else {
951 lpfc_nlp_init(phba, ndlp, NameServer_DID);
952 ndlp->nlp_type |= NLP_FABRIC;
953 }
954 }
955 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
956 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 957 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
c9f8735b
JW		 958 if (phba->cfg_fdmi_on) {
959 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
960 GFP_KERNEL);
961 if (ndlp_fdmi) {
962 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
963 ndlp_fdmi->nlp_type |= NLP_FABRIC;
964 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
488d1469 965 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
dea3101e 966 }
967 }
968 }
969
970 lpfc_mbuf_free(phba, mp->virt, mp->phys);
971 kfree(mp);
972 mempool_free( pmb, phba->mbox_mem_pool);
dea3101e 973 return;
974}
975
976/*
977 * This routine handles processing a NameServer REG_LOGIN mailbox
978 * command upon completion. It is setup in the LPFC_MBOXQ
979 * as the completion routine when the command is
980 * handed off to the SLI layer.
981 */
982void
983lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
984{
985 struct lpfc_sli *psli;
986 MAILBOX_t *mb;
987 struct lpfc_dmabuf *mp;
988 struct lpfc_nodelist *ndlp;
989
990 psli = &phba->sli;
991 mb = &pmb->mb;
992
993 ndlp = (struct lpfc_nodelist *) pmb->context2;
994 mp = (struct lpfc_dmabuf *) (pmb->context1);
995
996 if (mb->mbxStatus) {
997 lpfc_mbuf_free(phba, mp->virt, mp->phys);
998 kfree(mp);
999 mempool_free( pmb, phba->mbox_mem_pool);
1000 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1001
1002 /* RegLogin failed, so just use loop map to make discovery
1003 list */
1004 lpfc_disc_list_loopmap(phba);
1005
1006 /* Start discovery */
1007 lpfc_disc_start(phba);
1008 return;
1009 }
1010
1011 pmb->context1 = NULL;
1012
dea3101e 1013 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1014 ndlp->nlp_type |= NLP_FABRIC;
1015 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1016 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1017
1018 if (phba->hba_state < LPFC_HBA_READY) {
1019 /* Link up discovery requires Fabrib registration. */
1020 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1021 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1022 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1023 }
1024
1025 phba->fc_ns_retry = 0;
1026 /* Good status, issue CT Request to NameServer */
1027 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1028 /* Cannot issue NameServer Query, so finish up discovery */
1029 lpfc_disc_start(phba);
1030 }
1031
1032 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1033 kfree(mp);
1034 mempool_free( pmb, phba->mbox_mem_pool);
1035
1036 return;
1037}
1038
1039static void
1040lpfc_register_remote_port(struct lpfc_hba * phba,
1041 struct lpfc_nodelist * ndlp)
1042{
1043 struct fc_rport *rport;
1044 struct lpfc_rport_data *rdata;
1045 struct fc_rport_identifiers rport_ids;
dea3101e 1046
1047 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1048 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1049 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1050 rport_ids.port_id = ndlp->nlp_DID;
1051 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1052
1053 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1054 if (!rport) {
1055 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1056 "Warning: fc_remote_port_add failed\n");
1057 return;
1058 }
1059
1060 /* initialize static port data */
1061 rport->maxframe_size = ndlp->nlp_maxframe;
1062 rport->supported_classes = ndlp->nlp_class_sup;
1063 if ((rport->scsi_target_id != -1) &&
1064 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1065 ndlp->nlp_sid = rport->scsi_target_id;
1066 }
1067 rdata = rport->dd_data;
1068 rdata->pnode = ndlp;
23dc04f1
JSEC		 1069
1070 if (ndlp->nlp_type & NLP_FCP_TARGET)
1071 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1072 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1073 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1074
1075
1076 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1077 fc_remote_port_rolechg(rport, rport_ids.roles);
1078
19a7b4ae
JSEC		 1079
1080 return;
1081}
1082
1083static void
1084lpfc_unregister_remote_port(struct lpfc_hba * phba,
1085 struct lpfc_nodelist * ndlp)
1086{
1087 struct fc_rport *rport = ndlp->rport;
1088 struct lpfc_rport_data *rdata = rport->dd_data;
1089
1090 ndlp->rport = NULL;
1091 rdata->pnode = NULL;
19a7b4ae 1092 fc_remote_port_delete(rport);
dea3101e 1093
1094 return;
1095}
1096
1097int
1098lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1099{
1100 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1101 struct lpfc_sli *psli;
1102
1103 psli = &phba->sli;
1104 /* Sanity check to ensure we are not moving to / from the same list */
2fe165b6 1105 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
dea3101e 1106 if (list != NLP_NO_LIST)
2fe165b6 1107 return 0;
dea3101e 1108
66a9ed66 1109 spin_lock_irq(phba->host->host_lock);
2fe165b6 1110 switch (nlp->nlp_flag & NLP_LIST_MASK) {
dea3101e 1111 case NLP_NO_LIST: /* Not on any list */
1112 break;
1113 case NLP_UNUSED_LIST:
1114 phba->fc_unused_cnt--;
1115 list_del(&nlp->nlp_listp);
1116 break;
1117 case NLP_PLOGI_LIST:
1118 phba->fc_plogi_cnt--;
1119 list_del(&nlp->nlp_listp);
1120 break;
1121 case NLP_ADISC_LIST:
1122 phba->fc_adisc_cnt--;
1123 list_del(&nlp->nlp_listp);
1124 break;
1125 case NLP_REGLOGIN_LIST:
1126 phba->fc_reglogin_cnt--;
1127 list_del(&nlp->nlp_listp);
1128 break;
1129 case NLP_PRLI_LIST:
1130 phba->fc_prli_cnt--;
1131 list_del(&nlp->nlp_listp);
1132 break;
1133 case NLP_UNMAPPED_LIST:
1134 phba->fc_unmap_cnt--;
1135 list_del(&nlp->nlp_listp);
dea3101e 1136 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1137 nlp->nlp_type &= ~NLP_FC_NODE;
dea3101e 1138 phba->nport_event_cnt++;
1139 if (nlp->rport)
1140 rport_del = unmapped;
1141 break;
1142 case NLP_MAPPED_LIST:
1143 phba->fc_map_cnt--;
1144 list_del(&nlp->nlp_listp);
1145 phba->nport_event_cnt++;
1146 if (nlp->rport)
1147 rport_del = mapped;
1148 break;
1149 case NLP_NPR_LIST:
1150 phba->fc_npr_cnt--;
1151 list_del(&nlp->nlp_listp);
1152 /* Stop delay tmo if taking node off NPR list */
1153 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1154 (list != NLP_NPR_LIST)) {
dea3101e 1155 nlp->nlp_flag &= ~NLP_DELAY_TMO;
5024ab17 1156 nlp->nlp_last_elscmd = 0;
66a9ed66 1157 spin_unlock_irq(phba->host->host_lock);
dea3101e 1158 del_timer_sync(&nlp->nlp_delayfunc);
66a9ed66 1159 spin_lock_irq(phba->host->host_lock);
dea3101e 1160 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1161 list_del_init(&nlp->els_retry_evt.evt_listp);
1162 }
1163 break;
1164 }
1165
dea3101e 1166 nlp->nlp_flag &= ~NLP_LIST_MASK;
dea3101e 1167
1168 /* Add NPort <did> to <num> list */
1169 lpfc_printf_log(phba,
1170 KERN_INFO,
1171 LOG_NODE,
1172 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1173 phba->brd_no,
1174 nlp->nlp_DID, list, nlp->nlp_flag);
1175
2fe165b6 1176 switch (list) {
dea3101e 1177 case NLP_NO_LIST: /* No list, just remove it */
66a9ed66 1178 spin_unlock_irq(phba->host->host_lock);
dea3101e 1179 lpfc_nlp_remove(phba, nlp);
66a9ed66 1180 spin_lock_irq(phba->host->host_lock);
8cbdc5ff
JSEC		 1181 /* as node removed - stop further transport calls */
1182 rport_del = none;
dea3101e 1183 break;
1184 case NLP_UNUSED_LIST:
dea3101e 1185 nlp->nlp_flag |= list;
dea3101e 1186 /* Put it at the end of the unused list */
1187 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1188 phba->fc_unused_cnt++;
1189 break;
1190 case NLP_PLOGI_LIST:
dea3101e 1191 nlp->nlp_flag |= list;
dea3101e 1192 /* Put it at the end of the plogi list */
1193 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1194 phba->fc_plogi_cnt++;
1195 break;
1196 case NLP_ADISC_LIST:
dea3101e 1197 nlp->nlp_flag |= list;
dea3101e 1198 /* Put it at the end of the adisc list */
1199 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1200 phba->fc_adisc_cnt++;
1201 break;
1202 case NLP_REGLOGIN_LIST:
dea3101e 1203 nlp->nlp_flag |= list;
dea3101e 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:
dea3101e 1209 nlp->nlp_flag |= list;
dea3101e 1210 /* Put it at the end of the prli list */
1211 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1212 phba->fc_prli_cnt++;
1213 break;
1214 case NLP_UNMAPPED_LIST:
1215 rport_add = unmapped;
1216 /* ensure all vestiges of "mapped" significance are gone */
1217 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
dea3101e 1218 nlp->nlp_flag |= list;
dea3101e 1219 /* Put it at the end of the unmap list */
1220 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1221 phba->fc_unmap_cnt++;
1222 phba->nport_event_cnt++;
1223 /* stop nodev tmo if running */
1224 if (nlp->nlp_flag & NLP_NODEV_TMO) {
dea3101e 1225 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1226 spin_unlock_irq(phba->host->host_lock);
1227 del_timer_sync(&nlp->nlp_tmofunc);
66a9ed66 1228 spin_lock_irq(phba->host->host_lock);
dea3101e 1229 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1230 list_del_init(&nlp->nodev_timeout_evt.
1231 evt_listp);
1232
1233 }
1234 nlp->nlp_type |= NLP_FC_NODE;
1235 break;
1236 case NLP_MAPPED_LIST:
1237 rport_add = mapped;
dea3101e 1238 nlp->nlp_flag |= list;
dea3101e 1239 /* Put it at the end of the map list */
1240 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1241 phba->fc_map_cnt++;
1242 phba->nport_event_cnt++;
1243 /* stop nodev tmo if running */
1244 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1245 nlp->nlp_flag &= ~NLP_NODEV_TMO;
66a9ed66 1246 spin_unlock_irq(phba->host->host_lock);
dea3101e 1247 del_timer_sync(&nlp->nlp_tmofunc);
66a9ed66 1248 spin_lock_irq(phba->host->host_lock);
dea3101e 1249 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1250 list_del_init(&nlp->nodev_timeout_evt.
1251 evt_listp);
1252
1253 }
1254 break;
1255 case NLP_NPR_LIST:
dea3101e 1256 nlp->nlp_flag |= list;
dea3101e 1257 /* Put it at the end of the npr list */
1258 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1259 phba->fc_npr_cnt++;
1260
2fe165b6 1261 if (!(nlp->nlp_flag & NLP_NODEV_TMO))
dea3101e 1262 mod_timer(&nlp->nlp_tmofunc,
c9f8735b 1263 jiffies + HZ * phba->cfg_nodev_tmo);
2fe165b6 1264
dea3101e 1265 nlp->nlp_flag |= NLP_NODEV_TMO;
1266 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
dea3101e 1267 break;
1268 case NLP_JUST_DQ:
1269 break;
1270 }
1271
66a9ed66
JW		 1272 spin_unlock_irq(phba->host->host_lock);
1273
dea3101e 1274 /*
1275 * We make all the calls into the transport after we have
1276 * moved the node between lists. This so that we don't
1277 * release the lock while in-between lists.
1278 */
1279
1280 /* Don't upcall midlayer if we're unloading */
1281 if (!(phba->fc_flag & FC_UNLOADING)) {
1282 /*
1283 * We revalidate the rport pointer as the "add" function
1284 * may have removed the remote port.
1285 */
1286 if ((rport_del != none) && nlp->rport)
19a7b4ae 1287 lpfc_unregister_remote_port(phba, nlp);
dea3101e 1288
1289 if (rport_add != none) {
1290 /*
1291 * Tell the fc transport about the port, if we haven't
1292 * already. If we have, and it's a scsi entity, be
1293 * sure to unblock any attached scsi devices
1294 */
1295 if (!nlp->rport)
1296 lpfc_register_remote_port(phba, nlp);
dea3101e 1297
1298 /*
1299 * if we added to Mapped list, but the remote port
1300 * registration failed or assigned a target id outside
1301 * our presentable range - move the node to the
1302 * Unmapped List
1303 */
1304 if ((rport_add == mapped) &&
1305 ((!nlp->rport) ||
1306 (nlp->rport->scsi_target_id == -1) ||
1307 (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1308 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1309 spin_lock_irq(phba->host->host_lock);
1310 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1311 spin_unlock_irq(phba->host->host_lock);
1312 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1313 }
1314 }
1315 }
2fe165b6 1316 return 0;
dea3101e 1317}
1318
1319/*
1320 * Start / ReStart rescue timer for Discovery / RSCN handling
1321 */
1322void
1323lpfc_set_disctmo(struct lpfc_hba * phba)
1324{
1325 uint32_t tmo;
1326
c9f8735b
JW		 1327 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1328 /* For FAN, timeout should be greater then edtov */
1329 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1330 } else {
1331 /* Normal discovery timeout should be > then ELS/CT timeout
1332 * FC spec states we need 3 * ratov for CT requests
1333 */
1334 tmo = ((phba->fc_ratov * 3) + 3);
1335 }
dea3101e 1336
1337 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1338 spin_lock_irq(phba->host->host_lock);
1339 phba->fc_flag |= FC_DISC_TMO;
1340 spin_unlock_irq(phba->host->host_lock);
1341
1342 /* Start Discovery Timer state <hba_state> */
1343 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1344 "%d:0247 Start Discovery Timer state x%x "
1345 "Data: x%x x%lx x%x x%x\n",
1346 phba->brd_no,
1347 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1348 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1349
1350 return;
1351}
1352
1353/*
1354 * Cancel rescue timer for Discovery / RSCN handling
1355 */
1356int
1357lpfc_can_disctmo(struct lpfc_hba * phba)
1358{
1359 /* Turn off discovery timer if its running */
1360 if (phba->fc_flag & FC_DISC_TMO) {
1361 spin_lock_irq(phba->host->host_lock);
1362 phba->fc_flag &= ~FC_DISC_TMO;
1363 spin_unlock_irq(phba->host->host_lock);
1364 del_timer_sync(&phba->fc_disctmo);
1365 phba->work_hba_events &= ~WORKER_DISC_TMO;
1366 }
1367
1368 /* Cancel Discovery Timer state <hba_state> */
1369 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1370 "%d:0248 Cancel Discovery Timer state x%x "
1371 "Data: x%x x%x x%x\n",
1372 phba->brd_no, phba->hba_state, phba->fc_flag,
1373 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1374
2fe165b6 1375 return 0;
dea3101e 1376}
1377
1378/*
1379 * Check specified ring for outstanding IOCB on the SLI queue
1380 * Return true if iocb matches the specified nport
1381 */
1382int
1383lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1384 struct lpfc_sli_ring * pring,
1385 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1386{
1387 struct lpfc_sli *psli;
1388 IOCB_t *icmd;
1389
1390 psli = &phba->sli;
1391 icmd = &iocb->iocb;
1392 if (pring->ringno == LPFC_ELS_RING) {
1393 switch (icmd->ulpCommand) {
1394 case CMD_GEN_REQUEST64_CR:
1395 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1396 return 1;
dea3101e 1397 case CMD_ELS_REQUEST64_CR:
1398 case CMD_XMIT_ELS_RSP64_CX:
1399 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1400 return 1;
dea3101e 1401 }
1402 } else if (pring->ringno == psli->ip_ring) {
1403
1404 } else if (pring->ringno == psli->fcp_ring) {
1405 /* Skip match check if waiting to relogin to FCP target */
1406 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1407 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1408 return 0;
dea3101e 1409 }
1410 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1411 return 1;
dea3101e 1412 }
1413 } else if (pring->ringno == psli->next_ring) {
1414
1415 }
2fe165b6 1416 return 0;
dea3101e 1417}
1418
1419/*
1420 * Free resources / clean up outstanding I/Os
1421 * associated with nlp_rpi in the LPFC_NODELIST entry.
1422 */
1423static int
1424lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1425{
1426 struct lpfc_sli *psli;
1427 struct lpfc_sli_ring *pring;
1428 struct lpfc_iocbq *iocb, *next_iocb;
1429 IOCB_t *icmd;
1430 uint32_t rpi, i;
1431
1432 /*
1433 * Everything that matches on txcmplq will be returned
1434 * by firmware with a no rpi error.
1435 */
1436 psli = &phba->sli;
1437 rpi = ndlp->nlp_rpi;
1438 if (rpi) {
1439 /* Now process each ring */
1440 for (i = 0; i < psli->num_rings; i++) {
1441 pring = &psli->ring[i];
1442
1443 spin_lock_irq(phba->host->host_lock);
1444 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1445 list) {
1446 /*
1447 * Check to see if iocb matches the nport we are
1448 * looking for
1449 */
1450 if ((lpfc_check_sli_ndlp
1451 (phba, pring, iocb, ndlp))) {
1452 /* It matches, so deque and call compl
1453 with an error */
1454 list_del(&iocb->list);
1455 pring->txq_cnt--;
1456 if (iocb->iocb_cmpl) {
1457 icmd = &iocb->iocb;
1458 icmd->ulpStatus =
1459 IOSTAT_LOCAL_REJECT;
1460 icmd->un.ulpWord[4] =
1461 IOERR_SLI_ABORTED;
1462 spin_unlock_irq(phba->host->
1463 host_lock);
1464 (iocb->iocb_cmpl) (phba,
1465 iocb, iocb);
1466 spin_lock_irq(phba->host->
1467 host_lock);
604a3e30
JB		 1468 } else
1469 lpfc_sli_release_iocbq(phba,
1470 iocb);
dea3101e 1471 }
1472 }
1473 spin_unlock_irq(phba->host->host_lock);
1474
1475 }
1476 }
2fe165b6 1477 return 0;
dea3101e 1478}
1479
1480/*
1481 * Free rpi associated with LPFC_NODELIST entry.
1482 * This routine is called from lpfc_freenode(), when we are removing
1483 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1484 * LOGO that completes successfully, and we are waiting to PLOGI back
1485 * to the remote NPort. In addition, it is called after we receive
1486 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1487 * we are waiting to PLOGI back to the remote NPort.
1488 */
1489int
1490lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1491{
1492 LPFC_MBOXQ_t *mbox;
1493 int rc;
1494
1495 if (ndlp->nlp_rpi) {
1496 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1497 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1498 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1499 rc = lpfc_sli_issue_mbox
1500 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1501 if (rc == MBX_NOT_FINISHED)
1502 mempool_free( mbox, phba->mbox_mem_pool);
1503 }
dea3101e 1504 lpfc_no_rpi(phba, ndlp);
1505 ndlp->nlp_rpi = 0;
1506 return 1;
1507 }
1508 return 0;
1509}
1510
1511/*
1512 * Free resources associated with LPFC_NODELIST entry
1513 * so it can be freed.
1514 */
1515static int
1516lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1517{
1518 LPFC_MBOXQ_t *mb;
1519 LPFC_MBOXQ_t *nextmb;
1520 struct lpfc_dmabuf *mp;
dea3101e 1521
1522 /* Cleanup node for NPort <nlp_DID> */
1523 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1524 "%d:0900 Cleanup node for NPort x%x "
1525 "Data: x%x x%x x%x\n",
1526 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1527 ndlp->nlp_state, ndlp->nlp_rpi);
1528
1529 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1530
1531 /*
1532 * if unloading the driver - just leave the remote port in place.
1533 * The driver unload will force the attached devices to detach
1534 * and flush cache's w/o generating flush errors.
1535 */
1536 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
19a7b4ae 1537 lpfc_unregister_remote_port(phba, ndlp);
dea3101e 1538 ndlp->nlp_sid = NLP_NO_SID;
1539 }
1540
1541 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1542 if ((mb = phba->sli.mbox_active)) {
1543 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1544 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1545 mb->context2 = NULL;
1546 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1547 }
1548 }
1549 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1550 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1551 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1552 mp = (struct lpfc_dmabuf *) (mb->context1);
1553 if (mp) {
1554 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1555 kfree(mp);
1556 }
1557 list_del(&mb->list);
1558 mempool_free(mb, phba->mbox_mem_pool);
1559 }
1560 }
1561
1562 lpfc_els_abort(phba,ndlp,0);
1563 spin_lock_irq(phba->host->host_lock);
1564 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1565 spin_unlock_irq(phba->host->host_lock);
1566 del_timer_sync(&ndlp->nlp_tmofunc);
1567
5024ab17 1568 ndlp->nlp_last_elscmd = 0;
dea3101e 1569 del_timer_sync(&ndlp->nlp_delayfunc);
1570
1571 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1572 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1573 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1574 list_del_init(&ndlp->els_retry_evt.evt_listp);
1575
1576 lpfc_unreg_rpi(phba, ndlp);
1577
2fe165b6 1578 return 0;
dea3101e 1579}
1580
1581/*
1582 * Check to see if we can free the nlp back to the freelist.
1583 * If we are in the middle of using the nlp in the discovery state
1584 * machine, defer the free till we reach the end of the state machine.
1585 */
1586int
1587lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1588{
1589 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1590 spin_lock_irq(phba->host->host_lock);
1591 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1592 spin_unlock_irq(phba->host->host_lock);
1593 del_timer_sync(&ndlp->nlp_tmofunc);
1594 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1595 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1596
1597 }
1598
1599
1600 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1601 spin_lock_irq(phba->host->host_lock);
1602 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1603 spin_unlock_irq(phba->host->host_lock);
5024ab17 1604 ndlp->nlp_last_elscmd = 0;
dea3101e 1605 del_timer_sync(&ndlp->nlp_delayfunc);
1606 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1607 list_del_init(&ndlp->els_retry_evt.evt_listp);
1608 }
1609
1610 if (ndlp->nlp_disc_refcnt) {
1611 spin_lock_irq(phba->host->host_lock);
1612 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1613 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1614 } else {
dea3101e 1615 lpfc_freenode(phba, ndlp);
1616 mempool_free( ndlp, phba->nlp_mem_pool);
1617 }
2fe165b6 1618 return 0;
dea3101e 1619}
1620
1621static int
1622lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1623{
1624 D_ID mydid;
1625 D_ID ndlpdid;
1626 D_ID matchdid;
1627
1628 if (did == Bcast_DID)
2fe165b6 1629 return 0;
dea3101e 1630
1631 if (ndlp->nlp_DID == 0) {
2fe165b6 1632 return 0;
dea3101e 1633 }
1634
1635 /* First check for Direct match */
1636 if (ndlp->nlp_DID == did)
2fe165b6 1637 return 1;
dea3101e 1638
1639 /* Next check for area/domain identically equals 0 match */
1640 mydid.un.word = phba->fc_myDID;
1641 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 1642 return 0;
dea3101e 1643 }
1644
1645 matchdid.un.word = did;
1646 ndlpdid.un.word = ndlp->nlp_DID;
1647 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1648 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1649 (mydid.un.b.area == matchdid.un.b.area)) {
1650 if ((ndlpdid.un.b.domain == 0) &&
1651 (ndlpdid.un.b.area == 0)) {
1652 if (ndlpdid.un.b.id)
2fe165b6 1653 return 1;
dea3101e 1654 }
2fe165b6 1655 return 0;
dea3101e 1656 }
1657
1658 matchdid.un.word = ndlp->nlp_DID;
1659 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1660 (mydid.un.b.area == ndlpdid.un.b.area)) {
1661 if ((matchdid.un.b.domain == 0) &&
1662 (matchdid.un.b.area == 0)) {
1663 if (matchdid.un.b.id)
2fe165b6 1664 return 1;
dea3101e 1665 }
1666 }
1667 }
2fe165b6 1668 return 0;
dea3101e 1669}
1670
1671/* Search for a nodelist entry on a specific list */
1672struct lpfc_nodelist *
1673lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1674{
1675 struct lpfc_nodelist *ndlp, *next_ndlp;
1676 uint32_t data1;
1677
66a9ed66 1678 spin_lock_irq(phba->host->host_lock);
dea3101e 1679 if (order & NLP_SEARCH_UNMAPPED) {
1680 list_for_each_entry_safe(ndlp, next_ndlp,
1681 &phba->fc_nlpunmap_list, nlp_listp) {
1682 if (lpfc_matchdid(phba, ndlp, did)) {
1683 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1684 ((uint32_t) ndlp->nlp_xri << 16) |
1685 ((uint32_t) ndlp->nlp_type << 8) |
1686 ((uint32_t) ndlp->nlp_rpi & 0xff));
1687 /* FIND node DID unmapped */
1688 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1689 "%d:0929 FIND node DID unmapped"
1690 " Data: x%p x%x x%x x%x\n",
1691 phba->brd_no,
1692 ndlp, ndlp->nlp_DID,
1693 ndlp->nlp_flag, data1);
66a9ed66 1694 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1695 return ndlp;
dea3101e 1696 }
1697 }
1698 }
1699
1700 if (order & NLP_SEARCH_MAPPED) {
1701 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1702 nlp_listp) {
1703 if (lpfc_matchdid(phba, ndlp, did)) {
1704
1705 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1706 ((uint32_t) ndlp->nlp_xri << 16) |
1707 ((uint32_t) ndlp->nlp_type << 8) |
1708 ((uint32_t) ndlp->nlp_rpi & 0xff));
1709 /* FIND node DID mapped */
1710 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1711 "%d:0930 FIND node DID mapped "
1712 "Data: x%p x%x x%x x%x\n",
1713 phba->brd_no,
1714 ndlp, ndlp->nlp_DID,
1715 ndlp->nlp_flag, data1);
66a9ed66 1716 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1717 return ndlp;
dea3101e 1718 }
1719 }
1720 }
1721
1722 if (order & NLP_SEARCH_PLOGI) {
1723 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1724 nlp_listp) {
1725 if (lpfc_matchdid(phba, ndlp, did)) {
1726
1727 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1728 ((uint32_t) ndlp->nlp_xri << 16) |
1729 ((uint32_t) ndlp->nlp_type << 8) |
1730 ((uint32_t) ndlp->nlp_rpi & 0xff));
1731 /* LOG change to PLOGI */
1732 /* FIND node DID plogi */
1733 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1734 "%d:0908 FIND node DID plogi "
1735 "Data: x%p x%x x%x x%x\n",
1736 phba->brd_no,
1737 ndlp, ndlp->nlp_DID,
1738 ndlp->nlp_flag, data1);
66a9ed66 1739 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1740 return ndlp;
dea3101e 1741 }
1742 }
1743 }
1744
1745 if (order & NLP_SEARCH_ADISC) {
1746 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1747 nlp_listp) {
1748 if (lpfc_matchdid(phba, ndlp, did)) {
1749
1750 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1751 ((uint32_t) ndlp->nlp_xri << 16) |
1752 ((uint32_t) ndlp->nlp_type << 8) |
1753 ((uint32_t) ndlp->nlp_rpi & 0xff));
1754 /* LOG change to ADISC */
1755 /* FIND node DID adisc */
1756 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1757 "%d:0931 FIND node DID adisc "
1758 "Data: x%p x%x x%x x%x\n",
1759 phba->brd_no,
1760 ndlp, ndlp->nlp_DID,
1761 ndlp->nlp_flag, data1);
2fe165b6 1762 return ndlp;
dea3101e 1763 }
1764 }
1765 }
1766
1767 if (order & NLP_SEARCH_REGLOGIN) {
1768 list_for_each_entry_safe(ndlp, next_ndlp,
1769 &phba->fc_reglogin_list, nlp_listp) {
1770 if (lpfc_matchdid(phba, ndlp, did)) {
1771
1772 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1773 ((uint32_t) ndlp->nlp_xri << 16) |
1774 ((uint32_t) ndlp->nlp_type << 8) |
1775 ((uint32_t) ndlp->nlp_rpi & 0xff));
1776 /* LOG change to REGLOGIN */
1777 /* FIND node DID reglogin */
1778 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1779 "%d:0931 FIND node DID reglogin"
1780 " Data: x%p x%x x%x x%x\n",
1781 phba->brd_no,
1782 ndlp, ndlp->nlp_DID,
1783 ndlp->nlp_flag, data1);
66a9ed66 1784 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1785 return ndlp;
dea3101e 1786 }
1787 }
1788 }
1789
1790 if (order & NLP_SEARCH_PRLI) {
1791 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1792 nlp_listp) {
1793 if (lpfc_matchdid(phba, ndlp, did)) {
1794
1795 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1796 ((uint32_t) ndlp->nlp_xri << 16) |
1797 ((uint32_t) ndlp->nlp_type << 8) |
1798 ((uint32_t) ndlp->nlp_rpi & 0xff));
1799 /* LOG change to PRLI */
1800 /* FIND node DID prli */
1801 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1802 "%d:0931 FIND node DID prli "
1803 "Data: x%p x%x x%x x%x\n",
1804 phba->brd_no,
1805 ndlp, ndlp->nlp_DID,
1806 ndlp->nlp_flag, data1);
2fe165b6 1807 return ndlp;
dea3101e 1808 }
1809 }
1810 }
1811
1812 if (order & NLP_SEARCH_NPR) {
1813 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1814 nlp_listp) {
1815 if (lpfc_matchdid(phba, ndlp, did)) {
1816
1817 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1818 ((uint32_t) ndlp->nlp_xri << 16) |
1819 ((uint32_t) ndlp->nlp_type << 8) |
1820 ((uint32_t) ndlp->nlp_rpi & 0xff));
1821 /* LOG change to NPR */
1822 /* FIND node DID npr */
1823 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1824 "%d:0931 FIND node DID npr "
1825 "Data: x%p x%x x%x x%x\n",
1826 phba->brd_no,
1827 ndlp, ndlp->nlp_DID,
1828 ndlp->nlp_flag, data1);
66a9ed66 1829 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1830 return ndlp;
dea3101e 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);
66a9ed66 1852 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1853 return ndlp;
dea3101e 1854 }
1855 }
1856 }
1857
66a9ed66
JW		 1858 spin_unlock_irq(phba->host->host_lock);
1859
dea3101e 1860 /* FIND node did <did> NOT FOUND */
1861 lpfc_printf_log(phba,
1862 KERN_INFO,
1863 LOG_NODE,
1864 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1865 phba->brd_no, did, order);
1866
1867 /* no match found */
1868 return NULL;
1869}
1870
1871struct lpfc_nodelist *
1872lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1873{
1874 struct lpfc_nodelist *ndlp;
1875 uint32_t flg;
1876
c9f8735b
JW		 1877 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1878 if (!ndlp) {
1879 if ((phba->fc_flag & FC_RSCN_MODE) &&
dea3101e 1880 ((lpfc_rscn_payload_check(phba, did) == 0)))
1881 return NULL;
1882 ndlp = (struct lpfc_nodelist *)
1883 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1884 if (!ndlp)
1885 return NULL;
1886 lpfc_nlp_init(phba, ndlp, did);
1887 ndlp->nlp_state = NLP_STE_NPR_NODE;
1888 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1889 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1890 return ndlp;
1891 }
c9f8735b 1892 if (phba->fc_flag & FC_RSCN_MODE) {
dea3101e 1893 if (lpfc_rscn_payload_check(phba, did)) {
1894 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
c9f8735b
JW		 1895
1896 /* Since this node is marked for discovery,
1897 * delay timeout is not needed.
1898 */
1899 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1900 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
c9f8735b 1901 del_timer_sync(&ndlp->nlp_delayfunc);
c9f8735b 1902 if (!list_empty(&ndlp->els_retry_evt.
2fe165b6 1903 evt_listp))
c9f8735b 1904 list_del_init(&ndlp->els_retry_evt.
2fe165b6 1905 evt_listp);
c9f8735b 1906 }
2fe165b6 1907 } else {
dea3101e 1908 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1909 ndlp = NULL;
1910 }
2fe165b6 1911 } else {
dea3101e 1912 flg = ndlp->nlp_flag & NLP_LIST_MASK;
c9f8735b 1913 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
dea3101e 1914 return NULL;
dea3101e 1915 ndlp->nlp_state = NLP_STE_NPR_NODE;
1916 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1917 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1918 }
1919 return ndlp;
1920}
1921
1922/* Build a list of nodes to discover based on the loopmap */
1923void
1924lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1925{
1926 int j;
1927 uint32_t alpa, index;
1928
1929 if (phba->hba_state <= LPFC_LINK_DOWN) {
1930 return;
1931 }
1932 if (phba->fc_topology != TOPOLOGY_LOOP) {
1933 return;
1934 }
1935
1936 /* Check for loop map present or not */
1937 if (phba->alpa_map[0]) {
1938 for (j = 1; j <= phba->alpa_map[0]; j++) {
1939 alpa = phba->alpa_map[j];
1940
1941 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1942 continue;
1943 }
1944 lpfc_setup_disc_node(phba, alpa);
1945 }
1946 } else {
1947 /* No alpamap, so try all alpa's */
1948 for (j = 0; j < FC_MAXLOOP; j++) {
1949 /* If cfg_scan_down is set, start from highest
1950 * ALPA (0xef) to lowest (0x1).
1951 */
1952 if (phba->cfg_scan_down)
1953 index = j;
1954 else
1955 index = FC_MAXLOOP - j - 1;
1956 alpa = lpfcAlpaArray[index];
1957 if ((phba->fc_myDID & 0xff) == alpa) {
1958 continue;
1959 }
1960
1961 lpfc_setup_disc_node(phba, alpa);
1962 }
1963 }
1964 return;
1965}
1966
1967/* Start Link up / RSCN discovery on NPR list */
1968void
1969lpfc_disc_start(struct lpfc_hba * phba)
1970{
1971 struct lpfc_sli *psli;
1972 LPFC_MBOXQ_t *mbox;
1973 struct lpfc_nodelist *ndlp, *next_ndlp;
1974 uint32_t did_changed, num_sent;
1975 uint32_t clear_la_pending;
1976 int rc;
1977
1978 psli = &phba->sli;
1979
1980 if (phba->hba_state <= LPFC_LINK_DOWN) {
1981 return;
1982 }
1983 if (phba->hba_state == LPFC_CLEAR_LA)
1984 clear_la_pending = 1;
1985 else
1986 clear_la_pending = 0;
1987
1988 if (phba->hba_state < LPFC_HBA_READY) {
1989 phba->hba_state = LPFC_DISC_AUTH;
1990 }
1991 lpfc_set_disctmo(phba);
1992
1993 if (phba->fc_prevDID == phba->fc_myDID) {
1994 did_changed = 0;
1995 } else {
1996 did_changed = 1;
1997 }
1998 phba->fc_prevDID = phba->fc_myDID;
1999 phba->num_disc_nodes = 0;
2000
2001 /* Start Discovery state <hba_state> */
2002 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2003 "%d:0202 Start Discovery hba state x%x "
2004 "Data: x%x x%x x%x\n",
2005 phba->brd_no, phba->hba_state, phba->fc_flag,
2006 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2007
2008 /* If our did changed, we MUST do PLOGI */
2009 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2010 nlp_listp) {
2011 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2012 if (did_changed) {
2013 spin_lock_irq(phba->host->host_lock);
2014 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2015 spin_unlock_irq(phba->host->host_lock);
2016 }
2017 }
2018 }
2019
2020 /* First do ADISCs - if any */
2021 num_sent = lpfc_els_disc_adisc(phba);
2022
2023 if (num_sent)
2024 return;
2025
2026 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2027 /* If we get here, there is nothing to ADISC */
2028 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2029 phba->hba_state = LPFC_CLEAR_LA;
2030 lpfc_clear_la(phba, mbox);
2031 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2032 rc = lpfc_sli_issue_mbox(phba, mbox,
2033 (MBX_NOWAIT | MBX_STOP_IOCB));
2034 if (rc == MBX_NOT_FINISHED) {
2035 mempool_free( mbox, phba->mbox_mem_pool);
2036 lpfc_disc_flush_list(phba);
2037 psli->ring[(psli->ip_ring)].flag &=
2038 ~LPFC_STOP_IOCB_EVENT;
2039 psli->ring[(psli->fcp_ring)].flag &=
2040 ~LPFC_STOP_IOCB_EVENT;
2041 psli->ring[(psli->next_ring)].flag &=
2042 ~LPFC_STOP_IOCB_EVENT;
2043 phba->hba_state = LPFC_HBA_READY;
2044 }
2045 }
2046 } else {
2047 /* Next do PLOGIs - if any */
2048 num_sent = lpfc_els_disc_plogi(phba);
2049
2050 if (num_sent)
2051 return;
2052
2053 if (phba->fc_flag & FC_RSCN_MODE) {
2054 /* Check to see if more RSCNs came in while we
2055 * were processing this one.
2056 */
2057 if ((phba->fc_rscn_id_cnt == 0) &&
2058 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2059 spin_lock_irq(phba->host->host_lock);
2060 phba->fc_flag &= ~FC_RSCN_MODE;
2061 spin_unlock_irq(phba->host->host_lock);
2fe165b6 2062 } else
dea3101e 2063 lpfc_els_handle_rscn(phba);
2064 }
2065 }
2066 return;
2067}
2068
2069/*
2070 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2071 * ring the match the sppecified nodelist.
2072 */
2073static void
2074lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2075{
2076 struct lpfc_sli *psli;
2077 IOCB_t *icmd;
2078 struct lpfc_iocbq *iocb, *next_iocb;
2079 struct lpfc_sli_ring *pring;
2080 struct lpfc_dmabuf *mp;
2081
2082 psli = &phba->sli;
2083 pring = &psli->ring[LPFC_ELS_RING];
2084
2085 /* Error matching iocb on txq or txcmplq
2086 * First check the txq.
2087 */
2088 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2089 if (iocb->context1 != ndlp) {
2090 continue;
2091 }
2092 icmd = &iocb->iocb;
2093 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2094 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2095
2096 list_del(&iocb->list);
2097 pring->txq_cnt--;
2098 lpfc_els_free_iocb(phba, iocb);
2099 }
2100 }
2101
2102 /* Next check the txcmplq */
2103 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2104 if (iocb->context1 != ndlp) {
2105 continue;
2106 }
2107 icmd = &iocb->iocb;
2108 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2109 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2110
2111 iocb->iocb_cmpl = NULL;
2112 /* context2 = cmd, context2->next = rsp, context3 =
2113 bpl */
2114 if (iocb->context2) {
2115 /* Free the response IOCB before handling the
2116 command. */
2117
2118 mp = (struct lpfc_dmabuf *) (iocb->context2);
2119 mp = list_get_first(&mp->list,
2120 struct lpfc_dmabuf,
2121 list);
2122 if (mp) {
2123 /* Delay before releasing rsp buffer to
2124 * give UNREG mbox a chance to take
2125 * effect.
2126 */
2127 list_add(&mp->list,
2128 &phba->freebufList);
2129 }
2130 lpfc_mbuf_free(phba,
2131 ((struct lpfc_dmabuf *)
2132 iocb->context2)->virt,
2133 ((struct lpfc_dmabuf *)
2134 iocb->context2)->phys);
2135 kfree(iocb->context2);
2136 }
2137
2138 if (iocb->context3) {
2139 lpfc_mbuf_free(phba,
2140 ((struct lpfc_dmabuf *)
2141 iocb->context3)->virt,
2142 ((struct lpfc_dmabuf *)
2143 iocb->context3)->phys);
2144 kfree(iocb->context3);
2145 }
2146 }
2147 }
2148
2149 return;
2150}
2151
2152void
2153lpfc_disc_flush_list(struct lpfc_hba * phba)
2154{
2155 struct lpfc_nodelist *ndlp, *next_ndlp;
2156
2157 if (phba->fc_plogi_cnt) {
2158 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2159 nlp_listp) {
2160 lpfc_free_tx(phba, ndlp);
2161 lpfc_nlp_remove(phba, ndlp);
2162 }
2163 }
2164 if (phba->fc_adisc_cnt) {
2165 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2166 nlp_listp) {
2167 lpfc_free_tx(phba, ndlp);
2168 lpfc_nlp_remove(phba, ndlp);
2169 }
2170 }
2171 return;
2172}
2173
2174/*****************************************************************************/
2175/*
2176 * NAME: lpfc_disc_timeout
2177 *
2178 * FUNCTION: Fibre Channel driver discovery timeout routine.
2179 *
2180 * EXECUTION ENVIRONMENT: interrupt only
2181 *
2182 * CALLED FROM:
2183 * Timer function
2184 *
2185 * RETURNS:
2186 * none
2187 */
2188/*****************************************************************************/
2189void
2190lpfc_disc_timeout(unsigned long ptr)
2191{
2192 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2193 unsigned long flags = 0;
2194
2195 if (unlikely(!phba))
2196 return;
2197
2198 spin_lock_irqsave(phba->host->host_lock, flags);
2199 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2200 phba->work_hba_events |= WORKER_DISC_TMO;
2201 if (phba->work_wait)
2202 wake_up(phba->work_wait);
2203 }
2204 spin_unlock_irqrestore(phba->host->host_lock, flags);
2205 return;
2206}
2207
2208static void
2209lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2210{
2211 struct lpfc_sli *psli;
c9f8735b 2212 struct lpfc_nodelist *ndlp, *next_ndlp;
dea3101e 2213 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2214 int rc, clrlaerr = 0;
2215
2216 if (unlikely(!phba))
2217 return;
2218
2219 if (!(phba->fc_flag & FC_DISC_TMO))
2220 return;
2221
2222 psli = &phba->sli;
2223
2224 spin_lock_irq(phba->host->host_lock);
2225 phba->fc_flag &= ~FC_DISC_TMO;
2226 spin_unlock_irq(phba->host->host_lock);
2227
2228 switch (phba->hba_state) {
2229
2230 case LPFC_LOCAL_CFG_LINK:
2231 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2232 /* FAN timeout */
2233 lpfc_printf_log(phba,
2234 KERN_WARNING,
2235 LOG_DISCOVERY,
2236 "%d:0221 FAN timeout\n",
2237 phba->brd_no);
2238
c9f8735b
JW		 2239 /* Start discovery by sending FLOGI, clean up old rpis */
2240 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2241 nlp_listp) {
2242 if (ndlp->nlp_type & NLP_FABRIC) {
2243 /* Clean up the ndlp on Fabric connections */
2244 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2fe165b6 2245 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2246 /* Fail outstanding IO now since device
2247 * is marked for PLOGI.
2248 */
2249 lpfc_unreg_rpi(phba, ndlp);
2250 }
2251 }
dea3101e 2252 phba->hba_state = LPFC_FLOGI;
2253 lpfc_set_disctmo(phba);
2254 lpfc_initial_flogi(phba);
2255 break;
2256
2257 case LPFC_FLOGI:
2258 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2259 /* Initial FLOGI timeout */
2260 lpfc_printf_log(phba,
2261 KERN_ERR,
2262 LOG_DISCOVERY,
2263 "%d:0222 Initial FLOGI timeout\n",
2264 phba->brd_no);
2265
2266 /* Assume no Fabric and go on with discovery.
2267 * Check for outstanding ELS FLOGI to abort.
2268 */
2269
2270 /* FLOGI failed, so just use loop map to make discovery list */
2271 lpfc_disc_list_loopmap(phba);
2272
2273 /* Start discovery */
2274 lpfc_disc_start(phba);
2275 break;
2276
2277 case LPFC_FABRIC_CFG_LINK:
2278 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2279 NameServer login */
2280 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2281 "%d:0223 Timeout while waiting for NameServer "
2282 "login\n", phba->brd_no);
2283
2284 /* Next look for NameServer ndlp */
2285 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2286 if (ndlp)
2287 lpfc_nlp_remove(phba, ndlp);
2288 /* Start discovery */
2289 lpfc_disc_start(phba);
2290 break;
2291
2292 case LPFC_NS_QRY:
2293 /* Check for wait for NameServer Rsp timeout */
2294 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2295 "%d:0224 NameServer Query timeout "
2296 "Data: x%x x%x\n",
2297 phba->brd_no,
2298 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2299
2300 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2301 NameServer_DID);
2302 if (ndlp) {
2303 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2304 /* Try it one more time */
2305 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2306 if (rc == 0)
2307 break;
2308 }
2309 phba->fc_ns_retry = 0;
2310 }
2311
2312 /* Nothing to authenticate, so CLEAR_LA right now */
2313 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2314 if (!clearlambox) {
2315 clrlaerr = 1;
2316 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2317 "%d:0226 Device Discovery "
2318 "completion error\n",
2319 phba->brd_no);
2320 phba->hba_state = LPFC_HBA_ERROR;
2321 break;
2322 }
2323
2324 phba->hba_state = LPFC_CLEAR_LA;
2325 lpfc_clear_la(phba, clearlambox);
2326 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2327 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2328 (MBX_NOWAIT | MBX_STOP_IOCB));
2329 if (rc == MBX_NOT_FINISHED) {
2330 mempool_free(clearlambox, phba->mbox_mem_pool);
2331 clrlaerr = 1;
2332 break;
2333 }
2334
2335 /* Setup and issue mailbox INITIALIZE LINK command */
2336 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2337 if (!initlinkmbox) {
2338 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2339 "%d:0226 Device Discovery "
2340 "completion error\n",
2341 phba->brd_no);
2342 phba->hba_state = LPFC_HBA_ERROR;
2343 break;
2344 }
2345
2346 lpfc_linkdown(phba);
2347 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2348 phba->cfg_link_speed);
2349 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2350 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2351 (MBX_NOWAIT | MBX_STOP_IOCB));
2352 if (rc == MBX_NOT_FINISHED)
2353 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2354
2355 break;
2356
2357 case LPFC_DISC_AUTH:
2358 /* Node Authentication timeout */
2359 lpfc_printf_log(phba,
2360 KERN_ERR,
2361 LOG_DISCOVERY,
2362 "%d:0227 Node Authentication timeout\n",
2363 phba->brd_no);
2364 lpfc_disc_flush_list(phba);
2365 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2366 if (!clearlambox) {
2367 clrlaerr = 1;
2368 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2369 "%d:0226 Device Discovery "
2370 "completion error\n",
2371 phba->brd_no);
2372 phba->hba_state = LPFC_HBA_ERROR;
2373 break;
2374 }
2375 phba->hba_state = LPFC_CLEAR_LA;
2376 lpfc_clear_la(phba, clearlambox);
2377 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2378 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2379 (MBX_NOWAIT | MBX_STOP_IOCB));
2380 if (rc == MBX_NOT_FINISHED) {
2381 mempool_free(clearlambox, phba->mbox_mem_pool);
2382 clrlaerr = 1;
2383 }
2384 break;
2385
2386 case LPFC_CLEAR_LA:
2387 /* CLEAR LA timeout */
2388 lpfc_printf_log(phba,
2389 KERN_ERR,
2390 LOG_DISCOVERY,
2391 "%d:0228 CLEAR LA timeout\n",
2392 phba->brd_no);
2393 clrlaerr = 1;
2394 break;
2395
2396 case LPFC_HBA_READY:
2397 if (phba->fc_flag & FC_RSCN_MODE) {
2398 lpfc_printf_log(phba,
2399 KERN_ERR,
2400 LOG_DISCOVERY,
2401 "%d:0231 RSCN timeout Data: x%x x%x\n",
2402 phba->brd_no,
2403 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2404
2405 /* Cleanup any outstanding ELS commands */
2406 lpfc_els_flush_cmd(phba);
2407
2408 lpfc_els_flush_rscn(phba);
2409 lpfc_disc_flush_list(phba);
2410 }
2411 break;
2412 }
2413
2414 if (clrlaerr) {
2415 lpfc_disc_flush_list(phba);
2416 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2417 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2418 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2419 phba->hba_state = LPFC_HBA_READY;
2420 }
2421
2422 return;
2423}
2424
2425static void
2426lpfc_nodev_timeout(unsigned long ptr)
2427{
2428 struct lpfc_hba *phba;
2429 struct lpfc_nodelist *ndlp;
2430 unsigned long iflag;
2431 struct lpfc_work_evt *evtp;
2432
2433 ndlp = (struct lpfc_nodelist *)ptr;
2434 phba = ndlp->nlp_phba;
2435 evtp = &ndlp->nodev_timeout_evt;
2436 spin_lock_irqsave(phba->host->host_lock, iflag);
2437
2438 if (!list_empty(&evtp->evt_listp)) {
2439 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2440 return;
2441 }
2442 evtp->evt_arg1 = ndlp;
2443 evtp->evt = LPFC_EVT_NODEV_TMO;
2444 list_add_tail(&evtp->evt_listp, &phba->work_list);
2445 if (phba->work_wait)
2446 wake_up(phba->work_wait);
2447
2448 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2449 return;
2450}
2451
2452
2453/*
2454 * This routine handles processing a NameServer REG_LOGIN mailbox
2455 * command upon completion. It is setup in the LPFC_MBOXQ
2456 * as the completion routine when the command is
2457 * handed off to the SLI layer.
2458 */
2459void
2460lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2461{
2462 struct lpfc_sli *psli;
2463 MAILBOX_t *mb;
2464 struct lpfc_dmabuf *mp;
2465 struct lpfc_nodelist *ndlp;
2466
2467 psli = &phba->sli;
2468 mb = &pmb->mb;
2469
2470 ndlp = (struct lpfc_nodelist *) pmb->context2;
2471 mp = (struct lpfc_dmabuf *) (pmb->context1);
2472
2473 pmb->context1 = NULL;
2474
dea3101e 2475 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2476 ndlp->nlp_type |= NLP_FABRIC;
2477 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2478 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2479
2480 /* Start issuing Fabric-Device Management Interface (FDMI)
2481 * command to 0xfffffa (FDMI well known port)
2482 */
2483 if (phba->cfg_fdmi_on == 1) {
2484 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2485 } else {
2486 /*
2487 * Delay issuing FDMI command if fdmi-on=2
2488 * (supporting RPA/hostnmae)
2489 */
2490 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2491 }
2492
2493 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2494 kfree(mp);
2495 mempool_free( pmb, phba->mbox_mem_pool);
2496
2497 return;
2498}
2499
2500/*
21568f53
JSEC		 2501 * This routine looks up the ndlp lists
2502 * for the given RPI. If rpi found
dea3101e 2503 * it return the node list pointer
21568f53 2504 * else return NULL.
dea3101e 2505 */
2506struct lpfc_nodelist *
2507lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2508{
21568f53
JSEC		 2509 struct lpfc_nodelist *ndlp;
2510 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2511 &phba->fc_nlpmap_list,
2512 &phba->fc_plogi_list,
2513 &phba->fc_adisc_list,
2514 &phba->fc_reglogin_list};
2515 int i;
dea3101e 2516
66a9ed66 2517 spin_lock_irq(phba->host->host_lock);
21568f53
JSEC		 2518 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2519 list_for_each_entry(ndlp, lists[i], nlp_listp)
66a9ed66
JW		 2520 if (ndlp->nlp_rpi == rpi) {
2521 spin_unlock_irq(phba->host->host_lock);
2fe165b6 2522 return ndlp;
66a9ed66
JW		 2523 }
2524 spin_unlock_irq(phba->host->host_lock);
21568f53 2525 return NULL;
dea3101e 2526}
2527
488d1469
JS		 2528/*
2529 * This routine looks up the ndlp lists
2530 * for the given WWPN. If WWPN found
2531 * it return the node list pointer
2532 * else return NULL.
2533 */
2534struct lpfc_nodelist *
2535lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2536 struct lpfc_name * wwpn)
2537{
2538 struct lpfc_nodelist *ndlp;
2539 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2540 &phba->fc_nlpmap_list,
2541 &phba->fc_npr_list,
2542 &phba->fc_plogi_list,
2543 &phba->fc_adisc_list,
2544 &phba->fc_reglogin_list,
2545 &phba->fc_prli_list};
2546 uint32_t search[]={NLP_SEARCH_UNMAPPED,
2547 NLP_SEARCH_MAPPED,
2548 NLP_SEARCH_NPR,
2549 NLP_SEARCH_PLOGI,
2550 NLP_SEARCH_ADISC,
2551 NLP_SEARCH_REGLOGIN,
2552 NLP_SEARCH_PRLI};
2553 int i;
2554
2555 spin_lock_irq(phba->host->host_lock);
2556 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2557 if (!(order & search[i]))
2558 continue;
2559 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2560 if (memcmp(&ndlp->nlp_portname, wwpn,
2561 sizeof(struct lpfc_name)) == 0) {
2562 spin_unlock_irq(phba->host->host_lock);
2563 return ndlp;
2564 }
2565 }
2566 }
2567 spin_unlock_irq(phba->host->host_lock);
2568 return NULL;
2569}
2570
dea3101e 2571void
2572lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2573 uint32_t did)
2574{
2575 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2576 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2577 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2578 init_timer(&ndlp->nlp_tmofunc);
2579 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2580 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2581 init_timer(&ndlp->nlp_delayfunc);
2582 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2583 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2584 ndlp->nlp_DID = did;
2585 ndlp->nlp_phba = phba;
2586 ndlp->nlp_sid = NLP_NO_SID;
2587 return;
2588}
Linux kernel - Deliverables
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