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[SCSI] lpfc 8.1.2: Add module parameter to limit number of outstanding commands per...
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
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dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173
JSEC		 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 Emulex. All rights reserved. *
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{
6e8215e4 62 int warn_on = 0;
dea3101e 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 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 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;
111 switch(evtp->evt) {
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:
123 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
124 complete((struct completion *)(evtp->evt_arg2));
125 break;
126 case LPFC_EVT_OFFLINE:
127 *(int *)(evtp->evt_arg1) = lpfc_offline(phba);
128 complete((struct completion *)(evtp->evt_arg2));
129 break;
130 }
131 if (free_evt)
132 kfree(evtp);
133 spin_lock_irq(phba->host->host_lock);
134 }
135 spin_unlock_irq(phba->host->host_lock);
136
137}
138
139static void
140lpfc_work_done(struct lpfc_hba * phba)
141{
142 struct lpfc_sli_ring *pring;
143 int i;
144 uint32_t ha_copy;
145 uint32_t control;
146 uint32_t work_hba_events;
147
148 spin_lock_irq(phba->host->host_lock);
149 ha_copy = phba->work_ha;
150 phba->work_ha = 0;
151 work_hba_events=phba->work_hba_events;
152 spin_unlock_irq(phba->host->host_lock);
153
154 if(ha_copy & HA_ERATT)
155 lpfc_handle_eratt(phba);
156
157 if(ha_copy & HA_MBATT)
158 lpfc_sli_handle_mb_event(phba);
159
160 if(ha_copy & HA_LATT)
161 lpfc_handle_latt(phba);
162
163 if (work_hba_events & WORKER_DISC_TMO)
164 lpfc_disc_timeout_handler(phba);
165
166 if (work_hba_events & WORKER_ELS_TMO)
167 lpfc_els_timeout_handler(phba);
168
169 if (work_hba_events & WORKER_MBOX_TMO)
170 lpfc_mbox_timeout_handler(phba);
171
172 if (work_hba_events & WORKER_FDMI_TMO)
173 lpfc_fdmi_tmo_handler(phba);
174
175 spin_lock_irq(phba->host->host_lock);
176 phba->work_hba_events &= ~work_hba_events;
177 spin_unlock_irq(phba->host->host_lock);
178
179 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
180 pring = &phba->sli.ring[i];
181 if ((ha_copy & HA_RXATT)
182 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
183 if (pring->flag & LPFC_STOP_IOCB_MASK) {
184 pring->flag |= LPFC_DEFERRED_RING_EVENT;
185 } else {
186 lpfc_sli_handle_slow_ring_event(phba, pring,
187 (ha_copy &
188 HA_RXMASK));
189 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
190 }
191 /*
192 * Turn on Ring interrupts
193 */
194 spin_lock_irq(phba->host->host_lock);
195 control = readl(phba->HCregaddr);
196 control |= (HC_R0INT_ENA << i);
197 writel(control, phba->HCregaddr);
198 readl(phba->HCregaddr); /* flush */
199 spin_unlock_irq(phba->host->host_lock);
200 }
201 }
202
203 lpfc_work_list_done (phba);
204
205}
206
207static int
208check_work_wait_done(struct lpfc_hba *phba) {
209
210 spin_lock_irq(phba->host->host_lock);
211 if (phba->work_ha ||
212 phba->work_hba_events ||
213 (!list_empty(&phba->work_list)) ||
214 kthread_should_stop()) {
215 spin_unlock_irq(phba->host->host_lock);
216 return 1;
217 } else {
218 spin_unlock_irq(phba->host->host_lock);
219 return 0;
220 }
221}
222
223int
224lpfc_do_work(void *p)
225{
226 struct lpfc_hba *phba = p;
227 int rc;
228 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
229
230 set_user_nice(current, -20);
231 phba->work_wait = &work_waitq;
232
233 while (1) {
234
235 rc = wait_event_interruptible(work_waitq,
236 check_work_wait_done(phba));
237 BUG_ON(rc);
238
239 if (kthread_should_stop())
240 break;
241
242 lpfc_work_done(phba);
243
244 }
245 phba->work_wait = NULL;
246 return 0;
247}
248
249/*
250 * This is only called to handle FC worker events. Since this a rare
251 * occurance, we allocate a struct lpfc_work_evt structure here instead of
252 * embedding it in the IOCB.
253 */
254int
255lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
256 uint32_t evt)
257{
258 struct lpfc_work_evt *evtp;
259
260 /*
261 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
262 * be queued to worker thread for processing
263 */
264 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
265 if (!evtp)
266 return 0;
267
268 evtp->evt_arg1 = arg1;
269 evtp->evt_arg2 = arg2;
270 evtp->evt = evt;
271
272 list_add_tail(&evtp->evt_listp, &phba->work_list);
273 spin_lock_irq(phba->host->host_lock);
274 if (phba->work_wait)
275 wake_up(phba->work_wait);
276 spin_unlock_irq(phba->host->host_lock);
277
278 return 1;
279}
280
281int
282lpfc_linkdown(struct lpfc_hba * phba)
283{
284 struct lpfc_sli *psli;
285 struct lpfc_nodelist *ndlp, *next_ndlp;
286 struct list_head *listp;
287 struct list_head *node_list[7];
288 LPFC_MBOXQ_t *mb;
289 int rc, i;
290
291 psli = &phba->sli;
292
293 spin_lock_irq(phba->host->host_lock);
294 phba->hba_state = LPFC_LINK_DOWN;
295 spin_unlock_irq(phba->host->host_lock);
296
297 /* Clean up any firmware default rpi's */
298 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
299 lpfc_unreg_did(phba, 0xffffffff, mb);
300 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
301 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
302 == MBX_NOT_FINISHED) {
303 mempool_free( mb, phba->mbox_mem_pool);
304 }
305 }
306
307 /* Cleanup any outstanding RSCN activity */
308 lpfc_els_flush_rscn(phba);
309
310 /* Cleanup any outstanding ELS commands */
311 lpfc_els_flush_cmd(phba);
312
313 /* Issue a LINK DOWN event to all nodes */
314 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
315 node_list[1] = &phba->fc_nlpmap_list;
316 node_list[2] = &phba->fc_nlpunmap_list;
317 node_list[3] = &phba->fc_prli_list;
318 node_list[4] = &phba->fc_reglogin_list;
319 node_list[5] = &phba->fc_adisc_list;
320 node_list[6] = &phba->fc_plogi_list;
321 for (i = 0; i < 7; i++) {
322 listp = node_list[i];
323 if (list_empty(listp))
324 continue;
325
326 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
327 /* Fabric nodes are not handled thru state machine for
328 link down */
329 if (ndlp->nlp_type & NLP_FABRIC) {
330 /* Remove ALL Fabric nodes except Fabric_DID */
331 if (ndlp->nlp_DID != Fabric_DID) {
332 /* Take it off current list and free */
333 lpfc_nlp_list(phba, ndlp,
334 NLP_NO_LIST);
335 }
336 }
337 else {
338
339 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
340 NLP_EVT_DEVICE_RECOVERY);
341
342 /* Check config parameter use-adisc or FCP-2 */
343 if ((rc != NLP_STE_FREED_NODE) &&
344 (phba->cfg_use_adisc == 0) &&
345 !(ndlp->nlp_fcp_info &
346 NLP_FCP_2_DEVICE)) {
347 /* We know we will have to relogin, so
348 * unreglogin the rpi right now to fail
349 * any outstanding I/Os quickly.
350 */
351 lpfc_unreg_rpi(phba, ndlp);
352 }
353 }
354 }
355 }
356
357 /* free any ndlp's on unused list */
358 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
359 nlp_listp) {
360 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
361 }
362
363 /* Setup myDID for link up if we are in pt2pt mode */
364 if (phba->fc_flag & FC_PT2PT) {
365 phba->fc_myDID = 0;
366 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
367 lpfc_config_link(phba, mb);
368 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
369 if (lpfc_sli_issue_mbox
370 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
371 == MBX_NOT_FINISHED) {
372 mempool_free( mb, phba->mbox_mem_pool);
373 }
374 }
375 spin_lock_irq(phba->host->host_lock);
376 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
377 spin_unlock_irq(phba->host->host_lock);
378 }
379 spin_lock_irq(phba->host->host_lock);
380 phba->fc_flag &= ~FC_LBIT;
381 spin_unlock_irq(phba->host->host_lock);
382
383 /* Turn off discovery timer if its running */
384 lpfc_can_disctmo(phba);
385
386 /* Must process IOCBs on all rings to handle ABORTed I/Os */
387 return (0);
388}
389
390static int
391lpfc_linkup(struct lpfc_hba * phba)
392{
393 struct lpfc_nodelist *ndlp, *next_ndlp;
394
395 spin_lock_irq(phba->host->host_lock);
396 phba->hba_state = LPFC_LINK_UP;
397 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
398 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
399 phba->fc_flag |= FC_NDISC_ACTIVE;
400 phba->fc_ns_retry = 0;
401 spin_unlock_irq(phba->host->host_lock);
402
403
404 /*
405 * Clean up old Fabric NLP_FABRIC logins.
406 */
407 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
408 nlp_listp) {
409 if (ndlp->nlp_DID == Fabric_DID) {
410 /* Take it off current list and free */
411 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
412 }
413 }
414
415 /* free any ndlp's on unused list */
416 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
417 nlp_listp) {
418 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
419 }
420
421 return 0;
422}
423
424/*
425 * This routine handles processing a CLEAR_LA mailbox
426 * command upon completion. It is setup in the LPFC_MBOXQ
427 * as the completion routine when the command is
428 * handed off to the SLI layer.
429 */
430void
431lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
432{
433 struct lpfc_sli *psli;
434 MAILBOX_t *mb;
435 uint32_t control;
436
437 psli = &phba->sli;
438 mb = &pmb->mb;
439 /* Since we don't do discovery right now, turn these off here */
440 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
441 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
442 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
443
444 /* Check for error */
445 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
446 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
447 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
448 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
449 "state x%x\n",
450 phba->brd_no, mb->mbxStatus, phba->hba_state);
451
452 phba->hba_state = LPFC_HBA_ERROR;
453 goto out;
454 }
455
456 if (phba->fc_flag & FC_ABORT_DISCOVERY)
457 goto out;
458
459 phba->num_disc_nodes = 0;
460 /* go thru NPR list and issue ELS PLOGIs */
461 if (phba->fc_npr_cnt) {
462 lpfc_els_disc_plogi(phba);
463 }
464
465 if(!phba->num_disc_nodes) {
466 spin_lock_irq(phba->host->host_lock);
467 phba->fc_flag &= ~FC_NDISC_ACTIVE;
468 spin_unlock_irq(phba->host->host_lock);
469 }
470
471 phba->hba_state = LPFC_HBA_READY;
472
473out:
474 /* Device Discovery completes */
475 lpfc_printf_log(phba,
476 KERN_INFO,
477 LOG_DISCOVERY,
478 "%d:0225 Device Discovery completes\n",
479 phba->brd_no);
480
481 mempool_free( pmb, phba->mbox_mem_pool);
482
483 spin_lock_irq(phba->host->host_lock);
484 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
485 if (phba->fc_flag & FC_ESTABLISH_LINK) {
486 phba->fc_flag &= ~FC_ESTABLISH_LINK;
487 }
488 spin_unlock_irq(phba->host->host_lock);
489
490 del_timer_sync(&phba->fc_estabtmo);
491
492 lpfc_can_disctmo(phba);
493
494 /* turn on Link Attention interrupts */
495 spin_lock_irq(phba->host->host_lock);
496 psli->sli_flag |= LPFC_PROCESS_LA;
497 control = readl(phba->HCregaddr);
498 control |= HC_LAINT_ENA;
499 writel(control, phba->HCregaddr);
500 readl(phba->HCregaddr); /* flush */
501 spin_unlock_irq(phba->host->host_lock);
502
503 return;
504}
505
506static void
507lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
508{
509 struct lpfc_sli *psli;
510 MAILBOX_t *mb;
511
512 psli = &phba->sli;
513 mb = &pmb->mb;
514 /* Check for error */
515 if (mb->mbxStatus) {
516 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
517 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
518 "%d:0306 CONFIG_LINK mbxStatus error x%x "
519 "HBA state x%x\n",
520 phba->brd_no, mb->mbxStatus, phba->hba_state);
521
522 lpfc_linkdown(phba);
523 phba->hba_state = LPFC_HBA_ERROR;
524 goto out;
525 }
526
527 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
528 if (phba->fc_topology == TOPOLOGY_LOOP) {
529 /* If we are public loop and L bit was set */
530 if ((phba->fc_flag & FC_PUBLIC_LOOP) &&
531 !(phba->fc_flag & FC_LBIT)) {
532 /* Need to wait for FAN - use discovery timer
533 * for timeout. hba_state is identically
534 * LPFC_LOCAL_CFG_LINK while waiting for FAN
535 */
536 lpfc_set_disctmo(phba);
537 mempool_free( pmb, phba->mbox_mem_pool);
538 return;
539 }
540 }
541
542 /* Start discovery by sending a FLOGI hba_state is identically
543 * LPFC_FLOGI while waiting for FLOGI cmpl
544 */
545 phba->hba_state = LPFC_FLOGI;
546 lpfc_set_disctmo(phba);
547 lpfc_initial_flogi(phba);
548 mempool_free( pmb, phba->mbox_mem_pool);
549 return;
550 }
551 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
552 mempool_free( pmb, phba->mbox_mem_pool);
553 return;
554 }
555
556out:
557 /* CONFIG_LINK bad hba state <hba_state> */
558 lpfc_printf_log(phba,
559 KERN_ERR,
560 LOG_DISCOVERY,
561 "%d:0200 CONFIG_LINK bad hba state x%x\n",
562 phba->brd_no, phba->hba_state);
563
564 if (phba->hba_state != LPFC_CLEAR_LA) {
565 lpfc_clear_la(phba, pmb);
566 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
567 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
568 == MBX_NOT_FINISHED) {
569 mempool_free( pmb, phba->mbox_mem_pool);
570 lpfc_disc_flush_list(phba);
571 psli->ring[(psli->ip_ring)].flag &=
572 ~LPFC_STOP_IOCB_EVENT;
573 psli->ring[(psli->fcp_ring)].flag &=
574 ~LPFC_STOP_IOCB_EVENT;
575 psli->ring[(psli->next_ring)].flag &=
576 ~LPFC_STOP_IOCB_EVENT;
577 phba->hba_state = LPFC_HBA_READY;
578 }
579 } else {
580 mempool_free( pmb, phba->mbox_mem_pool);
581 }
582 return;
583}
584
585static void
586lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
587{
588 struct lpfc_sli *psli = &phba->sli;
589 MAILBOX_t *mb = &pmb->mb;
590 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
591
592
593 /* Check for error */
594 if (mb->mbxStatus) {
595 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
596 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
597 "%d:0319 READ_SPARAM mbxStatus error x%x "
598 "hba state x%x>\n",
599 phba->brd_no, mb->mbxStatus, phba->hba_state);
600
601 lpfc_linkdown(phba);
602 phba->hba_state = LPFC_HBA_ERROR;
603 goto out;
604 }
605
606 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
607 sizeof (struct serv_parm));
608 memcpy((uint8_t *) & phba->fc_nodename,
609 (uint8_t *) & phba->fc_sparam.nodeName,
610 sizeof (struct lpfc_name));
611 memcpy((uint8_t *) & phba->fc_portname,
612 (uint8_t *) & phba->fc_sparam.portName,
613 sizeof (struct lpfc_name));
614 lpfc_mbuf_free(phba, mp->virt, mp->phys);
615 kfree(mp);
616 mempool_free( pmb, phba->mbox_mem_pool);
617 return;
618
619out:
620 pmb->context1 = NULL;
621 lpfc_mbuf_free(phba, mp->virt, mp->phys);
622 kfree(mp);
623 if (phba->hba_state != LPFC_CLEAR_LA) {
624 lpfc_clear_la(phba, pmb);
625 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
626 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
627 == MBX_NOT_FINISHED) {
628 mempool_free( pmb, phba->mbox_mem_pool);
629 lpfc_disc_flush_list(phba);
630 psli->ring[(psli->ip_ring)].flag &=
631 ~LPFC_STOP_IOCB_EVENT;
632 psli->ring[(psli->fcp_ring)].flag &=
633 ~LPFC_STOP_IOCB_EVENT;
634 psli->ring[(psli->next_ring)].flag &=
635 ~LPFC_STOP_IOCB_EVENT;
636 phba->hba_state = LPFC_HBA_READY;
637 }
638 } else {
639 mempool_free( pmb, phba->mbox_mem_pool);
640 }
641 return;
642}
643
644static void
645lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
646{
647 int i;
648 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
649 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
650 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
651
652 spin_lock_irq(phba->host->host_lock);
653 switch(la->UlnkSpeed) {
654 case LA_1GHZ_LINK:
655 phba->fc_linkspeed = LA_1GHZ_LINK;
656 break;
657 case LA_2GHZ_LINK:
658 phba->fc_linkspeed = LA_2GHZ_LINK;
659 break;
660 case LA_4GHZ_LINK:
661 phba->fc_linkspeed = LA_4GHZ_LINK;
662 break;
663 default:
664 phba->fc_linkspeed = LA_UNKNW_LINK;
665 break;
666 }
667
668 phba->fc_topology = la->topology;
669
670 if (phba->fc_topology == TOPOLOGY_LOOP) {
671 /* Get Loop Map information */
672
673 if (la->il)
674 phba->fc_flag |= FC_LBIT;
675
676 phba->fc_myDID = la->granted_AL_PA;
677 i = la->un.lilpBde64.tus.f.bdeSize;
678
679 if (i == 0) {
680 phba->alpa_map[0] = 0;
681 } else {
682 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
683 int numalpa, j, k;
684 union {
685 uint8_t pamap[16];
686 struct {
687 uint32_t wd1;
688 uint32_t wd2;
689 uint32_t wd3;
690 uint32_t wd4;
691 } pa;
692 } un;
693 numalpa = phba->alpa_map[0];
694 j = 0;
695 while (j < numalpa) {
696 memset(un.pamap, 0, 16);
697 for (k = 1; j < numalpa; k++) {
698 un.pamap[k - 1] =
699 phba->alpa_map[j + 1];
700 j++;
701 if (k == 16)
702 break;
703 }
704 /* Link Up Event ALPA map */
705 lpfc_printf_log(phba,
706 KERN_WARNING,
707 LOG_LINK_EVENT,
708 "%d:1304 Link Up Event "
709 "ALPA map Data: x%x "
710 "x%x x%x x%x\n",
711 phba->brd_no,
712 un.pa.wd1, un.pa.wd2,
713 un.pa.wd3, un.pa.wd4);
714 }
715 }
716 }
717 } else {
718 phba->fc_myDID = phba->fc_pref_DID;
719 phba->fc_flag |= FC_LBIT;
720 }
721 spin_unlock_irq(phba->host->host_lock);
722
723 lpfc_linkup(phba);
724 if (sparam_mbox) {
725 lpfc_read_sparam(phba, sparam_mbox);
726 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
727 lpfc_sli_issue_mbox(phba, sparam_mbox,
728 (MBX_NOWAIT | MBX_STOP_IOCB));
729 }
730
731 if (cfglink_mbox) {
732 phba->hba_state = LPFC_LOCAL_CFG_LINK;
733 lpfc_config_link(phba, cfglink_mbox);
734 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link;
735 lpfc_sli_issue_mbox(phba, cfglink_mbox,
736 (MBX_NOWAIT | MBX_STOP_IOCB));
737 }
738}
739
740static void
741lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
742 uint32_t control;
743 struct lpfc_sli *psli = &phba->sli;
744
745 lpfc_linkdown(phba);
746
747 /* turn on Link Attention interrupts - no CLEAR_LA needed */
748 spin_lock_irq(phba->host->host_lock);
749 psli->sli_flag |= LPFC_PROCESS_LA;
750 control = readl(phba->HCregaddr);
751 control |= HC_LAINT_ENA;
752 writel(control, phba->HCregaddr);
753 readl(phba->HCregaddr); /* flush */
754 spin_unlock_irq(phba->host->host_lock);
755}
756
757/*
758 * This routine handles processing a READ_LA mailbox
759 * command upon completion. It is setup in the LPFC_MBOXQ
760 * as the completion routine when the command is
761 * handed off to the SLI layer.
762 */
763void
764lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
765{
766 READ_LA_VAR *la;
767 MAILBOX_t *mb = &pmb->mb;
768 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
769
770 /* Check for error */
771 if (mb->mbxStatus) {
772 lpfc_printf_log(phba,
773 KERN_INFO,
774 LOG_LINK_EVENT,
775 "%d:1307 READ_LA mbox error x%x state x%x\n",
776 phba->brd_no,
777 mb->mbxStatus, phba->hba_state);
778 lpfc_mbx_issue_link_down(phba);
779 phba->hba_state = LPFC_HBA_ERROR;
780 goto lpfc_mbx_cmpl_read_la_free_mbuf;
781 }
782
783 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
784
785 memcpy(&phba->alpa_map[0], mp->virt, 128);
786
787 if (((phba->fc_eventTag + 1) < la->eventTag) ||
788 (phba->fc_eventTag == la->eventTag)) {
789 phba->fc_stat.LinkMultiEvent++;
790 if (la->attType == AT_LINK_UP) {
791 if (phba->fc_eventTag != 0)
792 lpfc_linkdown(phba);
793 }
794 }
795
796 phba->fc_eventTag = la->eventTag;
797
798 if (la->attType == AT_LINK_UP) {
799 phba->fc_stat.LinkUp++;
800 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
801 "%d:1303 Link Up Event x%x received "
802 "Data: x%x x%x x%x x%x\n",
803 phba->brd_no, la->eventTag, phba->fc_eventTag,
804 la->granted_AL_PA, la->UlnkSpeed,
805 phba->alpa_map[0]);
806 lpfc_mbx_process_link_up(phba, la);
807 } else {
808 phba->fc_stat.LinkDown++;
809 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
810 "%d:1305 Link Down Event x%x received "
811 "Data: x%x x%x x%x\n",
812 phba->brd_no, la->eventTag, phba->fc_eventTag,
813 phba->hba_state, phba->fc_flag);
814 lpfc_mbx_issue_link_down(phba);
815 }
816
817lpfc_mbx_cmpl_read_la_free_mbuf:
818 lpfc_mbuf_free(phba, mp->virt, mp->phys);
819 kfree(mp);
820 mempool_free(pmb, phba->mbox_mem_pool);
821 return;
822}
823
824/*
825 * This routine handles processing a REG_LOGIN mailbox
826 * command upon completion. It is setup in the LPFC_MBOXQ
827 * as the completion routine when the command is
828 * handed off to the SLI layer.
829 */
830void
831lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
832{
833 struct lpfc_sli *psli;
834 MAILBOX_t *mb;
835 struct lpfc_dmabuf *mp;
836 struct lpfc_nodelist *ndlp;
837
838 psli = &phba->sli;
839 mb = &pmb->mb;
840
841 ndlp = (struct lpfc_nodelist *) pmb->context2;
842 mp = (struct lpfc_dmabuf *) (pmb->context1);
843
844 pmb->context1 = NULL;
845
846 /* Good status, call state machine */
847 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
848 lpfc_mbuf_free(phba, mp->virt, mp->phys);
849 kfree(mp);
850 mempool_free( pmb, phba->mbox_mem_pool);
851
852 return;
853}
854
855/*
856 * This routine handles processing a Fabric REG_LOGIN mailbox
857 * command upon completion. It is setup in the LPFC_MBOXQ
858 * as the completion routine when the command is
859 * handed off to the SLI layer.
860 */
861void
862lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
863{
864 struct lpfc_sli *psli;
865 MAILBOX_t *mb;
866 struct lpfc_dmabuf *mp;
867 struct lpfc_nodelist *ndlp;
868 struct lpfc_nodelist *ndlp_fdmi;
869
870
871 psli = &phba->sli;
872 mb = &pmb->mb;
873
874 ndlp = (struct lpfc_nodelist *) pmb->context2;
875 mp = (struct lpfc_dmabuf *) (pmb->context1);
876
877 if (mb->mbxStatus) {
878 lpfc_mbuf_free(phba, mp->virt, mp->phys);
879 kfree(mp);
880 mempool_free( pmb, phba->mbox_mem_pool);
881 mempool_free( ndlp, phba->nlp_mem_pool);
882
883 /* FLOGI failed, so just use loop map to make discovery list */
884 lpfc_disc_list_loopmap(phba);
885
886 /* Start discovery */
887 lpfc_disc_start(phba);
888 return;
889 }
890
891 pmb->context1 = NULL;
892
dea3101e 893 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 894 ndlp->nlp_type |= NLP_FABRIC;
895 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
896 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
897
898 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
899 /* This NPort has been assigned an NPort_ID by the fabric as a
900 * result of the completed fabric login. Issue a State Change
901 * Registration (SCR) ELS request to the fabric controller
902 * (SCR_DID) so that this NPort gets RSCN events from the
903 * fabric.
904 */
905 lpfc_issue_els_scr(phba, SCR_DID, 0);
906
907 /* Allocate a new node instance. If the pool is empty, just
908 * start the discovery process and skip the Nameserver login
909 * process. This is attempted again later on. Otherwise, issue
910 * a Port Login (PLOGI) to the NameServer
911 */
912 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
913 == 0) {
914 lpfc_disc_start(phba);
915 } else {
916 lpfc_nlp_init(phba, ndlp, NameServer_DID);
917 ndlp->nlp_type |= NLP_FABRIC;
918 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
919 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
920 lpfc_issue_els_plogi(phba, ndlp, 0);
921 if (phba->cfg_fdmi_on) {
922 if ((ndlp_fdmi = mempool_alloc(
923 phba->nlp_mem_pool,
924 GFP_KERNEL))) {
925 lpfc_nlp_init(phba, ndlp_fdmi,
926 FDMI_DID);
927 ndlp_fdmi->nlp_type |= NLP_FABRIC;
928 ndlp_fdmi->nlp_state =
929 NLP_STE_PLOGI_ISSUE;
930 lpfc_issue_els_plogi(phba, ndlp_fdmi,
931 0);
932 }
933 }
934 }
935 }
936
937 lpfc_mbuf_free(phba, mp->virt, mp->phys);
938 kfree(mp);
939 mempool_free( pmb, phba->mbox_mem_pool);
940
941 return;
942}
943
944/*
945 * This routine handles processing a NameServer REG_LOGIN mailbox
946 * command upon completion. It is setup in the LPFC_MBOXQ
947 * as the completion routine when the command is
948 * handed off to the SLI layer.
949 */
950void
951lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
952{
953 struct lpfc_sli *psli;
954 MAILBOX_t *mb;
955 struct lpfc_dmabuf *mp;
956 struct lpfc_nodelist *ndlp;
957
958 psli = &phba->sli;
959 mb = &pmb->mb;
960
961 ndlp = (struct lpfc_nodelist *) pmb->context2;
962 mp = (struct lpfc_dmabuf *) (pmb->context1);
963
964 if (mb->mbxStatus) {
965 lpfc_mbuf_free(phba, mp->virt, mp->phys);
966 kfree(mp);
967 mempool_free( pmb, phba->mbox_mem_pool);
968 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
969
970 /* RegLogin failed, so just use loop map to make discovery
971 list */
972 lpfc_disc_list_loopmap(phba);
973
974 /* Start discovery */
975 lpfc_disc_start(phba);
976 return;
977 }
978
979 pmb->context1 = NULL;
980
dea3101e 981 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 982 ndlp->nlp_type |= NLP_FABRIC;
983 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
984 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
985
986 if (phba->hba_state < LPFC_HBA_READY) {
987 /* Link up discovery requires Fabrib registration. */
988 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
989 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
990 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
991 }
992
993 phba->fc_ns_retry = 0;
994 /* Good status, issue CT Request to NameServer */
995 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
996 /* Cannot issue NameServer Query, so finish up discovery */
997 lpfc_disc_start(phba);
998 }
999
1000 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1001 kfree(mp);
1002 mempool_free( pmb, phba->mbox_mem_pool);
1003
1004 return;
1005}
1006
1007static void
1008lpfc_register_remote_port(struct lpfc_hba * phba,
1009 struct lpfc_nodelist * ndlp)
1010{
1011 struct fc_rport *rport;
1012 struct lpfc_rport_data *rdata;
1013 struct fc_rport_identifiers rport_ids;
dea3101e 1014
1015 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1016 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1017 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1018 rport_ids.port_id = ndlp->nlp_DID;
1019 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1020
1021 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1022 if (!rport) {
1023 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1024 "Warning: fc_remote_port_add failed\n");
1025 return;
1026 }
1027
1028 /* initialize static port data */
1029 rport->maxframe_size = ndlp->nlp_maxframe;
1030 rport->supported_classes = ndlp->nlp_class_sup;
1031 if ((rport->scsi_target_id != -1) &&
1032 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1033 ndlp->nlp_sid = rport->scsi_target_id;
1034 }
1035 rdata = rport->dd_data;
1036 rdata->pnode = ndlp;
23dc04f1
JSEC		 1037
1038 if (ndlp->nlp_type & NLP_FCP_TARGET)
1039 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1040 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1041 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1042
1043
1044 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1045 fc_remote_port_rolechg(rport, rport_ids.roles);
1046
19a7b4ae
JSEC		 1047
1048 return;
1049}
1050
1051static void
1052lpfc_unregister_remote_port(struct lpfc_hba * phba,
1053 struct lpfc_nodelist * ndlp)
1054{
1055 struct fc_rport *rport = ndlp->rport;
1056 struct lpfc_rport_data *rdata = rport->dd_data;
1057
1058 ndlp->rport = NULL;
1059 rdata->pnode = NULL;
19a7b4ae 1060 fc_remote_port_delete(rport);
dea3101e 1061
1062 return;
1063}
1064
1065int
1066lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1067{
1068 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1069 struct lpfc_sli *psli;
1070
1071 psli = &phba->sli;
1072 /* Sanity check to ensure we are not moving to / from the same list */
1073 if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1074 if (list != NLP_NO_LIST)
1075 return(0);
1076 }
1077
1078 switch(nlp->nlp_flag & NLP_LIST_MASK) {
1079 case NLP_NO_LIST: /* Not on any list */
1080 break;
1081 case NLP_UNUSED_LIST:
1082 phba->fc_unused_cnt--;
1083 list_del(&nlp->nlp_listp);
1084 break;
1085 case NLP_PLOGI_LIST:
1086 phba->fc_plogi_cnt--;
1087 list_del(&nlp->nlp_listp);
1088 break;
1089 case NLP_ADISC_LIST:
1090 phba->fc_adisc_cnt--;
1091 list_del(&nlp->nlp_listp);
1092 break;
1093 case NLP_REGLOGIN_LIST:
1094 phba->fc_reglogin_cnt--;
1095 list_del(&nlp->nlp_listp);
1096 break;
1097 case NLP_PRLI_LIST:
1098 phba->fc_prli_cnt--;
1099 list_del(&nlp->nlp_listp);
1100 break;
1101 case NLP_UNMAPPED_LIST:
1102 phba->fc_unmap_cnt--;
1103 list_del(&nlp->nlp_listp);
1104 spin_lock_irq(phba->host->host_lock);
1105 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1106 nlp->nlp_type &= ~NLP_FC_NODE;
1107 spin_unlock_irq(phba->host->host_lock);
1108 phba->nport_event_cnt++;
1109 if (nlp->rport)
1110 rport_del = unmapped;
1111 break;
1112 case NLP_MAPPED_LIST:
1113 phba->fc_map_cnt--;
1114 list_del(&nlp->nlp_listp);
1115 phba->nport_event_cnt++;
1116 if (nlp->rport)
1117 rport_del = mapped;
1118 break;
1119 case NLP_NPR_LIST:
1120 phba->fc_npr_cnt--;
1121 list_del(&nlp->nlp_listp);
1122 /* Stop delay tmo if taking node off NPR list */
1123 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1124 (list != NLP_NPR_LIST)) {
1125 spin_lock_irq(phba->host->host_lock);
1126 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1127 spin_unlock_irq(phba->host->host_lock);
1128 del_timer_sync(&nlp->nlp_delayfunc);
1129 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1130 list_del_init(&nlp->els_retry_evt.evt_listp);
1131 }
1132 break;
1133 }
1134
1135 spin_lock_irq(phba->host->host_lock);
1136 nlp->nlp_flag &= ~NLP_LIST_MASK;
1137 spin_unlock_irq(phba->host->host_lock);
1138
1139 /* Add NPort <did> to <num> list */
1140 lpfc_printf_log(phba,
1141 KERN_INFO,
1142 LOG_NODE,
1143 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1144 phba->brd_no,
1145 nlp->nlp_DID, list, nlp->nlp_flag);
1146
1147 switch(list) {
1148 case NLP_NO_LIST: /* No list, just remove it */
1149 lpfc_nlp_remove(phba, nlp);
8cbdc5ff
JSEC		 1150 /* as node removed - stop further transport calls */
1151 rport_del = none;
dea3101e 1152 break;
1153 case NLP_UNUSED_LIST:
1154 spin_lock_irq(phba->host->host_lock);
1155 nlp->nlp_flag |= list;
1156 spin_unlock_irq(phba->host->host_lock);
1157 /* Put it at the end of the unused list */
1158 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1159 phba->fc_unused_cnt++;
1160 break;
1161 case NLP_PLOGI_LIST:
1162 spin_lock_irq(phba->host->host_lock);
1163 nlp->nlp_flag |= list;
1164 spin_unlock_irq(phba->host->host_lock);
1165 /* Put it at the end of the plogi list */
1166 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1167 phba->fc_plogi_cnt++;
1168 break;
1169 case NLP_ADISC_LIST:
1170 spin_lock_irq(phba->host->host_lock);
1171 nlp->nlp_flag |= list;
1172 spin_unlock_irq(phba->host->host_lock);
1173 /* Put it at the end of the adisc list */
1174 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1175 phba->fc_adisc_cnt++;
1176 break;
1177 case NLP_REGLOGIN_LIST:
1178 spin_lock_irq(phba->host->host_lock);
1179 nlp->nlp_flag |= list;
1180 spin_unlock_irq(phba->host->host_lock);
1181 /* Put it at the end of the reglogin list */
1182 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1183 phba->fc_reglogin_cnt++;
1184 break;
1185 case NLP_PRLI_LIST:
1186 spin_lock_irq(phba->host->host_lock);
1187 nlp->nlp_flag |= list;
1188 spin_unlock_irq(phba->host->host_lock);
1189 /* Put it at the end of the prli list */
1190 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1191 phba->fc_prli_cnt++;
1192 break;
1193 case NLP_UNMAPPED_LIST:
1194 rport_add = unmapped;
1195 /* ensure all vestiges of "mapped" significance are gone */
1196 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1197 spin_lock_irq(phba->host->host_lock);
1198 nlp->nlp_flag |= list;
1199 spin_unlock_irq(phba->host->host_lock);
1200 /* Put it at the end of the unmap list */
1201 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1202 phba->fc_unmap_cnt++;
1203 phba->nport_event_cnt++;
1204 /* stop nodev tmo if running */
1205 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1206 spin_lock_irq(phba->host->host_lock);
1207 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1208 spin_unlock_irq(phba->host->host_lock);
1209 del_timer_sync(&nlp->nlp_tmofunc);
1210 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1211 list_del_init(&nlp->nodev_timeout_evt.
1212 evt_listp);
1213
1214 }
1215 nlp->nlp_type |= NLP_FC_NODE;
1216 break;
1217 case NLP_MAPPED_LIST:
1218 rport_add = mapped;
1219 spin_lock_irq(phba->host->host_lock);
1220 nlp->nlp_flag |= list;
1221 spin_unlock_irq(phba->host->host_lock);
1222 /* Put it at the end of the map list */
1223 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1224 phba->fc_map_cnt++;
1225 phba->nport_event_cnt++;
1226 /* stop nodev tmo if running */
1227 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1228 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1229 del_timer_sync(&nlp->nlp_tmofunc);
1230 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1231 list_del_init(&nlp->nodev_timeout_evt.
1232 evt_listp);
1233
1234 }
1235 break;
1236 case NLP_NPR_LIST:
1237 spin_lock_irq(phba->host->host_lock);
1238 nlp->nlp_flag |= list;
1239 spin_unlock_irq(phba->host->host_lock);
1240 /* Put it at the end of the npr list */
1241 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1242 phba->fc_npr_cnt++;
1243
1244 /*
1245 * Sanity check for Fabric entity.
1246 * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1247 */
1248 if (nlp->nlp_type & NLP_FABRIC) {
1249 mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1250 }
1251 else {
1252 mod_timer(&nlp->nlp_tmofunc,
1253 jiffies + HZ * phba->cfg_nodev_tmo);
1254 }
1255 spin_lock_irq(phba->host->host_lock);
1256 nlp->nlp_flag |= NLP_NODEV_TMO;
1257 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1258 spin_unlock_irq(phba->host->host_lock);
1259 break;
1260 case NLP_JUST_DQ:
1261 break;
1262 }
1263
1264 /*
1265 * We make all the calls into the transport after we have
1266 * moved the node between lists. This so that we don't
1267 * release the lock while in-between lists.
1268 */
1269
1270 /* Don't upcall midlayer if we're unloading */
1271 if (!(phba->fc_flag & FC_UNLOADING)) {
1272 /*
1273 * We revalidate the rport pointer as the "add" function
1274 * may have removed the remote port.
1275 */
1276 if ((rport_del != none) && nlp->rport)
19a7b4ae 1277 lpfc_unregister_remote_port(phba, nlp);
dea3101e 1278
1279 if (rport_add != none) {
1280 /*
1281 * Tell the fc transport about the port, if we haven't
1282 * already. If we have, and it's a scsi entity, be
1283 * sure to unblock any attached scsi devices
1284 */
1285 if (!nlp->rport)
1286 lpfc_register_remote_port(phba, nlp);
dea3101e 1287
1288 /*
1289 * if we added to Mapped list, but the remote port
1290 * registration failed or assigned a target id outside
1291 * our presentable range - move the node to the
1292 * Unmapped List
1293 */
1294 if ((rport_add == mapped) &&
1295 ((!nlp->rport) ||
1296 (nlp->rport->scsi_target_id == -1) ||
1297 (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1298 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1299 spin_lock_irq(phba->host->host_lock);
1300 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1301 spin_unlock_irq(phba->host->host_lock);
1302 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1303 }
1304 }
1305 }
1306 return (0);
1307}
1308
1309/*
1310 * Start / ReStart rescue timer for Discovery / RSCN handling
1311 */
1312void
1313lpfc_set_disctmo(struct lpfc_hba * phba)
1314{
1315 uint32_t tmo;
1316
1317 tmo = ((phba->fc_ratov * 2) + 1);
1318
1319 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1320 spin_lock_irq(phba->host->host_lock);
1321 phba->fc_flag |= FC_DISC_TMO;
1322 spin_unlock_irq(phba->host->host_lock);
1323
1324 /* Start Discovery Timer state <hba_state> */
1325 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1326 "%d:0247 Start Discovery Timer state x%x "
1327 "Data: x%x x%lx x%x x%x\n",
1328 phba->brd_no,
1329 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1330 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1331
1332 return;
1333}
1334
1335/*
1336 * Cancel rescue timer for Discovery / RSCN handling
1337 */
1338int
1339lpfc_can_disctmo(struct lpfc_hba * phba)
1340{
1341 /* Turn off discovery timer if its running */
1342 if (phba->fc_flag & FC_DISC_TMO) {
1343 spin_lock_irq(phba->host->host_lock);
1344 phba->fc_flag &= ~FC_DISC_TMO;
1345 spin_unlock_irq(phba->host->host_lock);
1346 del_timer_sync(&phba->fc_disctmo);
1347 phba->work_hba_events &= ~WORKER_DISC_TMO;
1348 }
1349
1350 /* Cancel Discovery Timer state <hba_state> */
1351 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1352 "%d:0248 Cancel Discovery Timer state x%x "
1353 "Data: x%x x%x x%x\n",
1354 phba->brd_no, phba->hba_state, phba->fc_flag,
1355 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1356
1357 return (0);
1358}
1359
1360/*
1361 * Check specified ring for outstanding IOCB on the SLI queue
1362 * Return true if iocb matches the specified nport
1363 */
1364int
1365lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1366 struct lpfc_sli_ring * pring,
1367 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1368{
1369 struct lpfc_sli *psli;
1370 IOCB_t *icmd;
1371
1372 psli = &phba->sli;
1373 icmd = &iocb->iocb;
1374 if (pring->ringno == LPFC_ELS_RING) {
1375 switch (icmd->ulpCommand) {
1376 case CMD_GEN_REQUEST64_CR:
1377 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1378 return (1);
1379 case CMD_ELS_REQUEST64_CR:
1380 case CMD_XMIT_ELS_RSP64_CX:
1381 if (iocb->context1 == (uint8_t *) ndlp)
1382 return (1);
1383 }
1384 } else if (pring->ringno == psli->ip_ring) {
1385
1386 } else if (pring->ringno == psli->fcp_ring) {
1387 /* Skip match check if waiting to relogin to FCP target */
1388 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1389 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1390 return (0);
1391 }
1392 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1393 return (1);
1394 }
1395 } else if (pring->ringno == psli->next_ring) {
1396
1397 }
1398 return (0);
1399}
1400
1401/*
1402 * Free resources / clean up outstanding I/Os
1403 * associated with nlp_rpi in the LPFC_NODELIST entry.
1404 */
1405static int
1406lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1407{
1408 struct lpfc_sli *psli;
1409 struct lpfc_sli_ring *pring;
1410 struct lpfc_iocbq *iocb, *next_iocb;
1411 IOCB_t *icmd;
1412 uint32_t rpi, i;
1413
1414 /*
1415 * Everything that matches on txcmplq will be returned
1416 * by firmware with a no rpi error.
1417 */
1418 psli = &phba->sli;
1419 rpi = ndlp->nlp_rpi;
1420 if (rpi) {
1421 /* Now process each ring */
1422 for (i = 0; i < psli->num_rings; i++) {
1423 pring = &psli->ring[i];
1424
1425 spin_lock_irq(phba->host->host_lock);
1426 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1427 list) {
1428 /*
1429 * Check to see if iocb matches the nport we are
1430 * looking for
1431 */
1432 if ((lpfc_check_sli_ndlp
1433 (phba, pring, iocb, ndlp))) {
1434 /* It matches, so deque and call compl
1435 with an error */
1436 list_del(&iocb->list);
1437 pring->txq_cnt--;
1438 if (iocb->iocb_cmpl) {
1439 icmd = &iocb->iocb;
1440 icmd->ulpStatus =
1441 IOSTAT_LOCAL_REJECT;
1442 icmd->un.ulpWord[4] =
1443 IOERR_SLI_ABORTED;
1444 spin_unlock_irq(phba->host->
1445 host_lock);
1446 (iocb->iocb_cmpl) (phba,
1447 iocb, iocb);
1448 spin_lock_irq(phba->host->
1449 host_lock);
604a3e30
JB		 1450 } else
1451 lpfc_sli_release_iocbq(phba,
1452 iocb);
dea3101e 1453 }
1454 }
1455 spin_unlock_irq(phba->host->host_lock);
1456
1457 }
1458 }
1459 return (0);
1460}
1461
1462/*
1463 * Free rpi associated with LPFC_NODELIST entry.
1464 * This routine is called from lpfc_freenode(), when we are removing
1465 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1466 * LOGO that completes successfully, and we are waiting to PLOGI back
1467 * to the remote NPort. In addition, it is called after we receive
1468 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1469 * we are waiting to PLOGI back to the remote NPort.
1470 */
1471int
1472lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1473{
1474 LPFC_MBOXQ_t *mbox;
1475 int rc;
1476
1477 if (ndlp->nlp_rpi) {
1478 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1479 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1480 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1481 rc = lpfc_sli_issue_mbox
1482 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1483 if (rc == MBX_NOT_FINISHED)
1484 mempool_free( mbox, phba->mbox_mem_pool);
1485 }
dea3101e 1486 lpfc_no_rpi(phba, ndlp);
1487 ndlp->nlp_rpi = 0;
1488 return 1;
1489 }
1490 return 0;
1491}
1492
1493/*
1494 * Free resources associated with LPFC_NODELIST entry
1495 * so it can be freed.
1496 */
1497static int
1498lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1499{
1500 LPFC_MBOXQ_t *mb;
1501 LPFC_MBOXQ_t *nextmb;
1502 struct lpfc_dmabuf *mp;
dea3101e 1503
1504 /* Cleanup node for NPort <nlp_DID> */
1505 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1506 "%d:0900 Cleanup node for NPort x%x "
1507 "Data: x%x x%x x%x\n",
1508 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1509 ndlp->nlp_state, ndlp->nlp_rpi);
1510
1511 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1512
1513 /*
1514 * if unloading the driver - just leave the remote port in place.
1515 * The driver unload will force the attached devices to detach
1516 * and flush cache's w/o generating flush errors.
1517 */
1518 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
19a7b4ae 1519 lpfc_unregister_remote_port(phba, ndlp);
dea3101e 1520 ndlp->nlp_sid = NLP_NO_SID;
1521 }
1522
1523 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1524 if ((mb = phba->sli.mbox_active)) {
1525 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1526 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1527 mb->context2 = NULL;
1528 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1529 }
1530 }
1531 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1532 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1533 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1534 mp = (struct lpfc_dmabuf *) (mb->context1);
1535 if (mp) {
1536 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1537 kfree(mp);
1538 }
1539 list_del(&mb->list);
1540 mempool_free(mb, phba->mbox_mem_pool);
1541 }
1542 }
1543
1544 lpfc_els_abort(phba,ndlp,0);
1545 spin_lock_irq(phba->host->host_lock);
1546 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1547 spin_unlock_irq(phba->host->host_lock);
1548 del_timer_sync(&ndlp->nlp_tmofunc);
1549
1550 del_timer_sync(&ndlp->nlp_delayfunc);
1551
1552 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1553 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1554 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1555 list_del_init(&ndlp->els_retry_evt.evt_listp);
1556
1557 lpfc_unreg_rpi(phba, ndlp);
1558
1559 return (0);
1560}
1561
1562/*
1563 * Check to see if we can free the nlp back to the freelist.
1564 * If we are in the middle of using the nlp in the discovery state
1565 * machine, defer the free till we reach the end of the state machine.
1566 */
1567int
1568lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1569{
1570 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1571 spin_lock_irq(phba->host->host_lock);
1572 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1573 spin_unlock_irq(phba->host->host_lock);
1574 del_timer_sync(&ndlp->nlp_tmofunc);
1575 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1576 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1577
1578 }
1579
1580
1581 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1582 spin_lock_irq(phba->host->host_lock);
1583 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1584 spin_unlock_irq(phba->host->host_lock);
1585 del_timer_sync(&ndlp->nlp_delayfunc);
1586 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1587 list_del_init(&ndlp->els_retry_evt.evt_listp);
1588 }
1589
1590 if (ndlp->nlp_disc_refcnt) {
1591 spin_lock_irq(phba->host->host_lock);
1592 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1593 spin_unlock_irq(phba->host->host_lock);
1594 }
1595 else {
1596 lpfc_freenode(phba, ndlp);
1597 mempool_free( ndlp, phba->nlp_mem_pool);
1598 }
1599 return(0);
1600}
1601
1602static int
1603lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1604{
1605 D_ID mydid;
1606 D_ID ndlpdid;
1607 D_ID matchdid;
1608
1609 if (did == Bcast_DID)
1610 return (0);
1611
1612 if (ndlp->nlp_DID == 0) {
1613 return (0);
1614 }
1615
1616 /* First check for Direct match */
1617 if (ndlp->nlp_DID == did)
1618 return (1);
1619
1620 /* Next check for area/domain identically equals 0 match */
1621 mydid.un.word = phba->fc_myDID;
1622 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1623 return (0);
1624 }
1625
1626 matchdid.un.word = did;
1627 ndlpdid.un.word = ndlp->nlp_DID;
1628 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1629 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1630 (mydid.un.b.area == matchdid.un.b.area)) {
1631 if ((ndlpdid.un.b.domain == 0) &&
1632 (ndlpdid.un.b.area == 0)) {
1633 if (ndlpdid.un.b.id)
1634 return (1);
1635 }
1636 return (0);
1637 }
1638
1639 matchdid.un.word = ndlp->nlp_DID;
1640 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1641 (mydid.un.b.area == ndlpdid.un.b.area)) {
1642 if ((matchdid.un.b.domain == 0) &&
1643 (matchdid.un.b.area == 0)) {
1644 if (matchdid.un.b.id)
1645 return (1);
1646 }
1647 }
1648 }
1649 return (0);
1650}
1651
1652/* Search for a nodelist entry on a specific list */
1653struct lpfc_nodelist *
1654lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1655{
1656 struct lpfc_nodelist *ndlp, *next_ndlp;
1657 uint32_t data1;
1658
1659 if (order & NLP_SEARCH_UNMAPPED) {
1660 list_for_each_entry_safe(ndlp, next_ndlp,
1661 &phba->fc_nlpunmap_list, nlp_listp) {
1662 if (lpfc_matchdid(phba, ndlp, did)) {
1663 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1664 ((uint32_t) ndlp->nlp_xri << 16) |
1665 ((uint32_t) ndlp->nlp_type << 8) |
1666 ((uint32_t) ndlp->nlp_rpi & 0xff));
1667 /* FIND node DID unmapped */
1668 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1669 "%d:0929 FIND node DID unmapped"
1670 " Data: x%p x%x x%x x%x\n",
1671 phba->brd_no,
1672 ndlp, ndlp->nlp_DID,
1673 ndlp->nlp_flag, data1);
1674 return (ndlp);
1675 }
1676 }
1677 }
1678
1679 if (order & NLP_SEARCH_MAPPED) {
1680 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1681 nlp_listp) {
1682 if (lpfc_matchdid(phba, ndlp, did)) {
1683
1684 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1685 ((uint32_t) ndlp->nlp_xri << 16) |
1686 ((uint32_t) ndlp->nlp_type << 8) |
1687 ((uint32_t) ndlp->nlp_rpi & 0xff));
1688 /* FIND node DID mapped */
1689 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1690 "%d:0930 FIND node DID mapped "
1691 "Data: x%p x%x x%x x%x\n",
1692 phba->brd_no,
1693 ndlp, ndlp->nlp_DID,
1694 ndlp->nlp_flag, data1);
1695 return (ndlp);
1696 }
1697 }
1698 }
1699
1700 if (order & NLP_SEARCH_PLOGI) {
1701 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_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 /* LOG change to PLOGI */
1710 /* FIND node DID plogi */
1711 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1712 "%d:0908 FIND node DID plogi "
1713 "Data: x%p x%x x%x x%x\n",
1714 phba->brd_no,
1715 ndlp, ndlp->nlp_DID,
1716 ndlp->nlp_flag, data1);
1717 return (ndlp);
1718 }
1719 }
1720 }
1721
1722 if (order & NLP_SEARCH_ADISC) {
1723 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_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 ADISC */
1732 /* FIND node DID adisc */
1733 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1734 "%d:0931 FIND node DID adisc "
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);
1739 return (ndlp);
1740 }
1741 }
1742 }
1743
1744 if (order & NLP_SEARCH_REGLOGIN) {
1745 list_for_each_entry_safe(ndlp, next_ndlp,
1746 &phba->fc_reglogin_list, nlp_listp) {
1747 if (lpfc_matchdid(phba, ndlp, did)) {
1748
1749 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1750 ((uint32_t) ndlp->nlp_xri << 16) |
1751 ((uint32_t) ndlp->nlp_type << 8) |
1752 ((uint32_t) ndlp->nlp_rpi & 0xff));
1753 /* LOG change to REGLOGIN */
1754 /* FIND node DID reglogin */
1755 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1756 "%d:0931 FIND node DID reglogin"
1757 " Data: x%p x%x x%x x%x\n",
1758 phba->brd_no,
1759 ndlp, ndlp->nlp_DID,
1760 ndlp->nlp_flag, data1);
1761 return (ndlp);
1762 }
1763 }
1764 }
1765
1766 if (order & NLP_SEARCH_PRLI) {
1767 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1768 nlp_listp) {
1769 if (lpfc_matchdid(phba, ndlp, did)) {
1770
1771 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1772 ((uint32_t) ndlp->nlp_xri << 16) |
1773 ((uint32_t) ndlp->nlp_type << 8) |
1774 ((uint32_t) ndlp->nlp_rpi & 0xff));
1775 /* LOG change to PRLI */
1776 /* FIND node DID prli */
1777 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1778 "%d:0931 FIND node DID prli "
1779 "Data: x%p x%x x%x x%x\n",
1780 phba->brd_no,
1781 ndlp, ndlp->nlp_DID,
1782 ndlp->nlp_flag, data1);
1783 return (ndlp);
1784 }
1785 }
1786 }
1787
1788 if (order & NLP_SEARCH_NPR) {
1789 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1790 nlp_listp) {
1791 if (lpfc_matchdid(phba, ndlp, did)) {
1792
1793 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1794 ((uint32_t) ndlp->nlp_xri << 16) |
1795 ((uint32_t) ndlp->nlp_type << 8) |
1796 ((uint32_t) ndlp->nlp_rpi & 0xff));
1797 /* LOG change to NPR */
1798 /* FIND node DID npr */
1799 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1800 "%d:0931 FIND node DID npr "
1801 "Data: x%p x%x x%x x%x\n",
1802 phba->brd_no,
1803 ndlp, ndlp->nlp_DID,
1804 ndlp->nlp_flag, data1);
1805 return (ndlp);
1806 }
1807 }
1808 }
1809
1810 if (order & NLP_SEARCH_UNUSED) {
1811 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1812 nlp_listp) {
1813 if (lpfc_matchdid(phba, ndlp, did)) {
1814
1815 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1816 ((uint32_t) ndlp->nlp_xri << 16) |
1817 ((uint32_t) ndlp->nlp_type << 8) |
1818 ((uint32_t) ndlp->nlp_rpi & 0xff));
1819 /* LOG change to UNUSED */
1820 /* FIND node DID unused */
1821 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1822 "%d:0931 FIND node DID unused "
1823 "Data: x%p x%x x%x x%x\n",
1824 phba->brd_no,
1825 ndlp, ndlp->nlp_DID,
1826 ndlp->nlp_flag, data1);
1827 return (ndlp);
1828 }
1829 }
1830 }
1831
1832 /* FIND node did <did> NOT FOUND */
1833 lpfc_printf_log(phba,
1834 KERN_INFO,
1835 LOG_NODE,
1836 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1837 phba->brd_no, did, order);
1838
1839 /* no match found */
1840 return NULL;
1841}
1842
1843struct lpfc_nodelist *
1844lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1845{
1846 struct lpfc_nodelist *ndlp;
1847 uint32_t flg;
1848
1849 if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1850 if ((phba->hba_state == LPFC_HBA_READY) &&
1851 ((lpfc_rscn_payload_check(phba, did) == 0)))
1852 return NULL;
1853 ndlp = (struct lpfc_nodelist *)
1854 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1855 if (!ndlp)
1856 return NULL;
1857 lpfc_nlp_init(phba, ndlp, did);
1858 ndlp->nlp_state = NLP_STE_NPR_NODE;
1859 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1860 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1861 return ndlp;
1862 }
1863 if ((phba->hba_state == LPFC_HBA_READY) &&
1864 (phba->fc_flag & FC_RSCN_MODE)) {
1865 if (lpfc_rscn_payload_check(phba, did)) {
1866 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1867 }
1868 else {
1869 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1870 ndlp = NULL;
1871 }
1872 }
1873 else {
1874 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1875 if ((flg == NLP_ADISC_LIST) ||
1876 (flg == NLP_PLOGI_LIST)) {
1877 return NULL;
1878 }
1879 ndlp->nlp_state = NLP_STE_NPR_NODE;
1880 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1881 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1882 }
1883 return ndlp;
1884}
1885
1886/* Build a list of nodes to discover based on the loopmap */
1887void
1888lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1889{
1890 int j;
1891 uint32_t alpa, index;
1892
1893 if (phba->hba_state <= LPFC_LINK_DOWN) {
1894 return;
1895 }
1896 if (phba->fc_topology != TOPOLOGY_LOOP) {
1897 return;
1898 }
1899
1900 /* Check for loop map present or not */
1901 if (phba->alpa_map[0]) {
1902 for (j = 1; j <= phba->alpa_map[0]; j++) {
1903 alpa = phba->alpa_map[j];
1904
1905 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1906 continue;
1907 }
1908 lpfc_setup_disc_node(phba, alpa);
1909 }
1910 } else {
1911 /* No alpamap, so try all alpa's */
1912 for (j = 0; j < FC_MAXLOOP; j++) {
1913 /* If cfg_scan_down is set, start from highest
1914 * ALPA (0xef) to lowest (0x1).
1915 */
1916 if (phba->cfg_scan_down)
1917 index = j;
1918 else
1919 index = FC_MAXLOOP - j - 1;
1920 alpa = lpfcAlpaArray[index];
1921 if ((phba->fc_myDID & 0xff) == alpa) {
1922 continue;
1923 }
1924
1925 lpfc_setup_disc_node(phba, alpa);
1926 }
1927 }
1928 return;
1929}
1930
1931/* Start Link up / RSCN discovery on NPR list */
1932void
1933lpfc_disc_start(struct lpfc_hba * phba)
1934{
1935 struct lpfc_sli *psli;
1936 LPFC_MBOXQ_t *mbox;
1937 struct lpfc_nodelist *ndlp, *next_ndlp;
1938 uint32_t did_changed, num_sent;
1939 uint32_t clear_la_pending;
1940 int rc;
1941
1942 psli = &phba->sli;
1943
1944 if (phba->hba_state <= LPFC_LINK_DOWN) {
1945 return;
1946 }
1947 if (phba->hba_state == LPFC_CLEAR_LA)
1948 clear_la_pending = 1;
1949 else
1950 clear_la_pending = 0;
1951
1952 if (phba->hba_state < LPFC_HBA_READY) {
1953 phba->hba_state = LPFC_DISC_AUTH;
1954 }
1955 lpfc_set_disctmo(phba);
1956
1957 if (phba->fc_prevDID == phba->fc_myDID) {
1958 did_changed = 0;
1959 } else {
1960 did_changed = 1;
1961 }
1962 phba->fc_prevDID = phba->fc_myDID;
1963 phba->num_disc_nodes = 0;
1964
1965 /* Start Discovery state <hba_state> */
1966 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1967 "%d:0202 Start Discovery hba state x%x "
1968 "Data: x%x x%x x%x\n",
1969 phba->brd_no, phba->hba_state, phba->fc_flag,
1970 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1971
1972 /* If our did changed, we MUST do PLOGI */
1973 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1974 nlp_listp) {
1975 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1976 if (did_changed) {
1977 spin_lock_irq(phba->host->host_lock);
1978 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1979 spin_unlock_irq(phba->host->host_lock);
1980 }
1981 }
1982 }
1983
1984 /* First do ADISCs - if any */
1985 num_sent = lpfc_els_disc_adisc(phba);
1986
1987 if (num_sent)
1988 return;
1989
1990 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1991 /* If we get here, there is nothing to ADISC */
1992 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1993 phba->hba_state = LPFC_CLEAR_LA;
1994 lpfc_clear_la(phba, mbox);
1995 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1996 rc = lpfc_sli_issue_mbox(phba, mbox,
1997 (MBX_NOWAIT | MBX_STOP_IOCB));
1998 if (rc == MBX_NOT_FINISHED) {
1999 mempool_free( mbox, phba->mbox_mem_pool);
2000 lpfc_disc_flush_list(phba);
2001 psli->ring[(psli->ip_ring)].flag &=
2002 ~LPFC_STOP_IOCB_EVENT;
2003 psli->ring[(psli->fcp_ring)].flag &=
2004 ~LPFC_STOP_IOCB_EVENT;
2005 psli->ring[(psli->next_ring)].flag &=
2006 ~LPFC_STOP_IOCB_EVENT;
2007 phba->hba_state = LPFC_HBA_READY;
2008 }
2009 }
2010 } else {
2011 /* Next do PLOGIs - if any */
2012 num_sent = lpfc_els_disc_plogi(phba);
2013
2014 if (num_sent)
2015 return;
2016
2017 if (phba->fc_flag & FC_RSCN_MODE) {
2018 /* Check to see if more RSCNs came in while we
2019 * were processing this one.
2020 */
2021 if ((phba->fc_rscn_id_cnt == 0) &&
2022 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2023 spin_lock_irq(phba->host->host_lock);
2024 phba->fc_flag &= ~FC_RSCN_MODE;
2025 spin_unlock_irq(phba->host->host_lock);
2026 }
2027 else
2028 lpfc_els_handle_rscn(phba);
2029 }
2030 }
2031 return;
2032}
2033
2034/*
2035 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2036 * ring the match the sppecified nodelist.
2037 */
2038static void
2039lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2040{
2041 struct lpfc_sli *psli;
2042 IOCB_t *icmd;
2043 struct lpfc_iocbq *iocb, *next_iocb;
2044 struct lpfc_sli_ring *pring;
2045 struct lpfc_dmabuf *mp;
2046
2047 psli = &phba->sli;
2048 pring = &psli->ring[LPFC_ELS_RING];
2049
2050 /* Error matching iocb on txq or txcmplq
2051 * First check the txq.
2052 */
2053 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2054 if (iocb->context1 != ndlp) {
2055 continue;
2056 }
2057 icmd = &iocb->iocb;
2058 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2059 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2060
2061 list_del(&iocb->list);
2062 pring->txq_cnt--;
2063 lpfc_els_free_iocb(phba, iocb);
2064 }
2065 }
2066
2067 /* Next check the txcmplq */
2068 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2069 if (iocb->context1 != ndlp) {
2070 continue;
2071 }
2072 icmd = &iocb->iocb;
2073 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2074 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2075
2076 iocb->iocb_cmpl = NULL;
2077 /* context2 = cmd, context2->next = rsp, context3 =
2078 bpl */
2079 if (iocb->context2) {
2080 /* Free the response IOCB before handling the
2081 command. */
2082
2083 mp = (struct lpfc_dmabuf *) (iocb->context2);
2084 mp = list_get_first(&mp->list,
2085 struct lpfc_dmabuf,
2086 list);
2087 if (mp) {
2088 /* Delay before releasing rsp buffer to
2089 * give UNREG mbox a chance to take
2090 * effect.
2091 */
2092 list_add(&mp->list,
2093 &phba->freebufList);
2094 }
2095 lpfc_mbuf_free(phba,
2096 ((struct lpfc_dmabuf *)
2097 iocb->context2)->virt,
2098 ((struct lpfc_dmabuf *)
2099 iocb->context2)->phys);
2100 kfree(iocb->context2);
2101 }
2102
2103 if (iocb->context3) {
2104 lpfc_mbuf_free(phba,
2105 ((struct lpfc_dmabuf *)
2106 iocb->context3)->virt,
2107 ((struct lpfc_dmabuf *)
2108 iocb->context3)->phys);
2109 kfree(iocb->context3);
2110 }
2111 }
2112 }
2113
2114 return;
2115}
2116
2117void
2118lpfc_disc_flush_list(struct lpfc_hba * phba)
2119{
2120 struct lpfc_nodelist *ndlp, *next_ndlp;
2121
2122 if (phba->fc_plogi_cnt) {
2123 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2124 nlp_listp) {
2125 lpfc_free_tx(phba, ndlp);
2126 lpfc_nlp_remove(phba, ndlp);
2127 }
2128 }
2129 if (phba->fc_adisc_cnt) {
2130 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2131 nlp_listp) {
2132 lpfc_free_tx(phba, ndlp);
2133 lpfc_nlp_remove(phba, ndlp);
2134 }
2135 }
2136 return;
2137}
2138
2139/*****************************************************************************/
2140/*
2141 * NAME: lpfc_disc_timeout
2142 *
2143 * FUNCTION: Fibre Channel driver discovery timeout routine.
2144 *
2145 * EXECUTION ENVIRONMENT: interrupt only
2146 *
2147 * CALLED FROM:
2148 * Timer function
2149 *
2150 * RETURNS:
2151 * none
2152 */
2153/*****************************************************************************/
2154void
2155lpfc_disc_timeout(unsigned long ptr)
2156{
2157 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2158 unsigned long flags = 0;
2159
2160 if (unlikely(!phba))
2161 return;
2162
2163 spin_lock_irqsave(phba->host->host_lock, flags);
2164 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2165 phba->work_hba_events |= WORKER_DISC_TMO;
2166 if (phba->work_wait)
2167 wake_up(phba->work_wait);
2168 }
2169 spin_unlock_irqrestore(phba->host->host_lock, flags);
2170 return;
2171}
2172
2173static void
2174lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2175{
2176 struct lpfc_sli *psli;
2177 struct lpfc_nodelist *ndlp;
2178 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2179 int rc, clrlaerr = 0;
2180
2181 if (unlikely(!phba))
2182 return;
2183
2184 if (!(phba->fc_flag & FC_DISC_TMO))
2185 return;
2186
2187 psli = &phba->sli;
2188
2189 spin_lock_irq(phba->host->host_lock);
2190 phba->fc_flag &= ~FC_DISC_TMO;
2191 spin_unlock_irq(phba->host->host_lock);
2192
2193 switch (phba->hba_state) {
2194
2195 case LPFC_LOCAL_CFG_LINK:
2196 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2197 /* FAN timeout */
2198 lpfc_printf_log(phba,
2199 KERN_WARNING,
2200 LOG_DISCOVERY,
2201 "%d:0221 FAN timeout\n",
2202 phba->brd_no);
2203
2204 /* Forget about FAN, Start discovery by sending a FLOGI
2205 * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2206 * cmpl
2207 */
2208 phba->hba_state = LPFC_FLOGI;
2209 lpfc_set_disctmo(phba);
2210 lpfc_initial_flogi(phba);
2211 break;
2212
2213 case LPFC_FLOGI:
2214 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2215 /* Initial FLOGI timeout */
2216 lpfc_printf_log(phba,
2217 KERN_ERR,
2218 LOG_DISCOVERY,
2219 "%d:0222 Initial FLOGI timeout\n",
2220 phba->brd_no);
2221
2222 /* Assume no Fabric and go on with discovery.
2223 * Check for outstanding ELS FLOGI to abort.
2224 */
2225
2226 /* FLOGI failed, so just use loop map to make discovery list */
2227 lpfc_disc_list_loopmap(phba);
2228
2229 /* Start discovery */
2230 lpfc_disc_start(phba);
2231 break;
2232
2233 case LPFC_FABRIC_CFG_LINK:
2234 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2235 NameServer login */
2236 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2237 "%d:0223 Timeout while waiting for NameServer "
2238 "login\n", phba->brd_no);
2239
2240 /* Next look for NameServer ndlp */
2241 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2242 if (ndlp)
2243 lpfc_nlp_remove(phba, ndlp);
2244 /* Start discovery */
2245 lpfc_disc_start(phba);
2246 break;
2247
2248 case LPFC_NS_QRY:
2249 /* Check for wait for NameServer Rsp timeout */
2250 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2251 "%d:0224 NameServer Query timeout "
2252 "Data: x%x x%x\n",
2253 phba->brd_no,
2254 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2255
2256 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2257 NameServer_DID);
2258 if (ndlp) {
2259 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2260 /* Try it one more time */
2261 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2262 if (rc == 0)
2263 break;
2264 }
2265 phba->fc_ns_retry = 0;
2266 }
2267
2268 /* Nothing to authenticate, so CLEAR_LA right now */
2269 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2270 if (!clearlambox) {
2271 clrlaerr = 1;
2272 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2273 "%d:0226 Device Discovery "
2274 "completion error\n",
2275 phba->brd_no);
2276 phba->hba_state = LPFC_HBA_ERROR;
2277 break;
2278 }
2279
2280 phba->hba_state = LPFC_CLEAR_LA;
2281 lpfc_clear_la(phba, clearlambox);
2282 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2283 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2284 (MBX_NOWAIT | MBX_STOP_IOCB));
2285 if (rc == MBX_NOT_FINISHED) {
2286 mempool_free(clearlambox, phba->mbox_mem_pool);
2287 clrlaerr = 1;
2288 break;
2289 }
2290
2291 /* Setup and issue mailbox INITIALIZE LINK command */
2292 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2293 if (!initlinkmbox) {
2294 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2295 "%d:0226 Device Discovery "
2296 "completion error\n",
2297 phba->brd_no);
2298 phba->hba_state = LPFC_HBA_ERROR;
2299 break;
2300 }
2301
2302 lpfc_linkdown(phba);
2303 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2304 phba->cfg_link_speed);
2305 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2306 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2307 (MBX_NOWAIT | MBX_STOP_IOCB));
2308 if (rc == MBX_NOT_FINISHED)
2309 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2310
2311 break;
2312
2313 case LPFC_DISC_AUTH:
2314 /* Node Authentication timeout */
2315 lpfc_printf_log(phba,
2316 KERN_ERR,
2317 LOG_DISCOVERY,
2318 "%d:0227 Node Authentication timeout\n",
2319 phba->brd_no);
2320 lpfc_disc_flush_list(phba);
2321 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2322 if (!clearlambox) {
2323 clrlaerr = 1;
2324 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2325 "%d:0226 Device Discovery "
2326 "completion error\n",
2327 phba->brd_no);
2328 phba->hba_state = LPFC_HBA_ERROR;
2329 break;
2330 }
2331 phba->hba_state = LPFC_CLEAR_LA;
2332 lpfc_clear_la(phba, clearlambox);
2333 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2334 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2335 (MBX_NOWAIT | MBX_STOP_IOCB));
2336 if (rc == MBX_NOT_FINISHED) {
2337 mempool_free(clearlambox, phba->mbox_mem_pool);
2338 clrlaerr = 1;
2339 }
2340 break;
2341
2342 case LPFC_CLEAR_LA:
2343 /* CLEAR LA timeout */
2344 lpfc_printf_log(phba,
2345 KERN_ERR,
2346 LOG_DISCOVERY,
2347 "%d:0228 CLEAR LA timeout\n",
2348 phba->brd_no);
2349 clrlaerr = 1;
2350 break;
2351
2352 case LPFC_HBA_READY:
2353 if (phba->fc_flag & FC_RSCN_MODE) {
2354 lpfc_printf_log(phba,
2355 KERN_ERR,
2356 LOG_DISCOVERY,
2357 "%d:0231 RSCN timeout Data: x%x x%x\n",
2358 phba->brd_no,
2359 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2360
2361 /* Cleanup any outstanding ELS commands */
2362 lpfc_els_flush_cmd(phba);
2363
2364 lpfc_els_flush_rscn(phba);
2365 lpfc_disc_flush_list(phba);
2366 }
2367 break;
2368 }
2369
2370 if (clrlaerr) {
2371 lpfc_disc_flush_list(phba);
2372 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2373 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2374 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2375 phba->hba_state = LPFC_HBA_READY;
2376 }
2377
2378 return;
2379}
2380
2381static void
2382lpfc_nodev_timeout(unsigned long ptr)
2383{
2384 struct lpfc_hba *phba;
2385 struct lpfc_nodelist *ndlp;
2386 unsigned long iflag;
2387 struct lpfc_work_evt *evtp;
2388
2389 ndlp = (struct lpfc_nodelist *)ptr;
2390 phba = ndlp->nlp_phba;
2391 evtp = &ndlp->nodev_timeout_evt;
2392 spin_lock_irqsave(phba->host->host_lock, iflag);
2393
2394 if (!list_empty(&evtp->evt_listp)) {
2395 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2396 return;
2397 }
2398 evtp->evt_arg1 = ndlp;
2399 evtp->evt = LPFC_EVT_NODEV_TMO;
2400 list_add_tail(&evtp->evt_listp, &phba->work_list);
2401 if (phba->work_wait)
2402 wake_up(phba->work_wait);
2403
2404 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2405 return;
2406}
2407
2408
2409/*
2410 * This routine handles processing a NameServer REG_LOGIN mailbox
2411 * command upon completion. It is setup in the LPFC_MBOXQ
2412 * as the completion routine when the command is
2413 * handed off to the SLI layer.
2414 */
2415void
2416lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2417{
2418 struct lpfc_sli *psli;
2419 MAILBOX_t *mb;
2420 struct lpfc_dmabuf *mp;
2421 struct lpfc_nodelist *ndlp;
2422
2423 psli = &phba->sli;
2424 mb = &pmb->mb;
2425
2426 ndlp = (struct lpfc_nodelist *) pmb->context2;
2427 mp = (struct lpfc_dmabuf *) (pmb->context1);
2428
2429 pmb->context1 = NULL;
2430
dea3101e 2431 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2432 ndlp->nlp_type |= NLP_FABRIC;
2433 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2434 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2435
2436 /* Start issuing Fabric-Device Management Interface (FDMI)
2437 * command to 0xfffffa (FDMI well known port)
2438 */
2439 if (phba->cfg_fdmi_on == 1) {
2440 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2441 } else {
2442 /*
2443 * Delay issuing FDMI command if fdmi-on=2
2444 * (supporting RPA/hostnmae)
2445 */
2446 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2447 }
2448
2449 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2450 kfree(mp);
2451 mempool_free( pmb, phba->mbox_mem_pool);
2452
2453 return;
2454}
2455
2456/*
21568f53
JSEC		 2457 * This routine looks up the ndlp lists
2458 * for the given RPI. If rpi found
dea3101e 2459 * it return the node list pointer
21568f53 2460 * else return NULL.
dea3101e 2461 */
2462struct lpfc_nodelist *
2463lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2464{
21568f53
JSEC		 2465 struct lpfc_nodelist *ndlp;
2466 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2467 &phba->fc_nlpmap_list,
2468 &phba->fc_plogi_list,
2469 &phba->fc_adisc_list,
2470 &phba->fc_reglogin_list};
2471 int i;
dea3101e 2472
21568f53
JSEC		 2473 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2474 list_for_each_entry(ndlp, lists[i], nlp_listp)
2475 if (ndlp->nlp_rpi == rpi)
2476 return (ndlp);
dea3101e 2477
21568f53 2478 return NULL;
dea3101e 2479}
2480
2481void
2482lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2483 uint32_t did)
2484{
2485 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2486 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2487 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2488 init_timer(&ndlp->nlp_tmofunc);
2489 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2490 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2491 init_timer(&ndlp->nlp_delayfunc);
2492 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2493 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2494 ndlp->nlp_DID = did;
2495 ndlp->nlp_phba = phba;
2496 ndlp->nlp_sid = NLP_NO_SID;
2497 return;
2498}
Linux kernel - Deliverables
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