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Merge ../linus
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
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. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/kthread.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
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 */
41 static 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
57 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
58
59 static void
60 lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
61 {
62 uint8_t *name = (uint8_t *)&ndlp->nlp_portname;
63 int warn_on = 0;
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 /*
72 * If a discovery event readded nodev_timer after timer
73 * firing and before processing the timer, cancel the
74 * nlp_tmofunc.
75 */
76 spin_unlock_irq(phba->host->host_lock);
77 del_timer_sync(&ndlp->nlp_tmofunc);
78 spin_lock_irq(phba->host->host_lock);
79
80 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
81
82 if (ndlp->nlp_sid != NLP_NO_SID) {
83 warn_on = 1;
84 /* flush the target */
85 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
86 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
87 }
88 spin_unlock_irq(phba->host->host_lock);
89
90 if (warn_on) {
91 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92 "%d:0203 Nodev timeout on "
93 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
94 "NPort x%x Data: x%x x%x x%x\n",
95 phba->brd_no,
96 *name, *(name+1), *(name+2), *(name+3),
97 *(name+4), *(name+5), *(name+6), *(name+7),
98 ndlp->nlp_DID, ndlp->nlp_flag,
99 ndlp->nlp_state, ndlp->nlp_rpi);
100 } else {
101 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
102 "%d:0204 Nodev timeout on "
103 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
104 "NPort x%x Data: x%x x%x x%x\n",
105 phba->brd_no,
106 *name, *(name+1), *(name+2), *(name+3),
107 *(name+4), *(name+5), *(name+6), *(name+7),
108 ndlp->nlp_DID, ndlp->nlp_flag,
109 ndlp->nlp_state, ndlp->nlp_rpi);
110 }
111
112 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
113 return;
114 }
115
116 static void
117 lpfc_work_list_done(struct lpfc_hba * phba)
118 {
119 struct lpfc_work_evt *evtp = NULL;
120 struct lpfc_nodelist *ndlp;
121 int free_evt;
122
123 spin_lock_irq(phba->host->host_lock);
124 while(!list_empty(&phba->work_list)) {
125 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
126 evt_listp);
127 spin_unlock_irq(phba->host->host_lock);
128 free_evt = 1;
129 switch (evtp->evt) {
130 case LPFC_EVT_NODEV_TMO:
131 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
132 lpfc_process_nodev_timeout(phba, ndlp);
133 free_evt = 0;
134 break;
135 case LPFC_EVT_ELS_RETRY:
136 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
137 lpfc_els_retry_delay_handler(ndlp);
138 free_evt = 0;
139 break;
140 case LPFC_EVT_ONLINE:
141 if (phba->hba_state < LPFC_LINK_DOWN)
142 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
143 else
144 *(int *)(evtp->evt_arg1) = 0;
145 complete((struct completion *)(evtp->evt_arg2));
146 break;
147 case LPFC_EVT_OFFLINE:
148 if (phba->hba_state >= LPFC_LINK_DOWN)
149 lpfc_offline(phba);
150 lpfc_sli_brdrestart(phba);
151 *(int *)(evtp->evt_arg1) =
152 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
153 complete((struct completion *)(evtp->evt_arg2));
154 break;
155 case LPFC_EVT_WARM_START:
156 if (phba->hba_state >= LPFC_LINK_DOWN)
157 lpfc_offline(phba);
158 lpfc_reset_barrier(phba);
159 lpfc_sli_brdreset(phba);
160 lpfc_hba_down_post(phba);
161 *(int *)(evtp->evt_arg1) =
162 lpfc_sli_brdready(phba, HS_MBRDY);
163 complete((struct completion *)(evtp->evt_arg2));
164 break;
165 case LPFC_EVT_KILL:
166 if (phba->hba_state >= LPFC_LINK_DOWN)
167 lpfc_offline(phba);
168 *(int *)(evtp->evt_arg1)
169 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
170 complete((struct completion *)(evtp->evt_arg2));
171 break;
172 }
173 if (free_evt)
174 kfree(evtp);
175 spin_lock_irq(phba->host->host_lock);
176 }
177 spin_unlock_irq(phba->host->host_lock);
178
179 }
180
181 static void
182 lpfc_work_done(struct lpfc_hba * phba)
183 {
184 struct lpfc_sli_ring *pring;
185 int i;
186 uint32_t ha_copy;
187 uint32_t control;
188 uint32_t work_hba_events;
189
190 spin_lock_irq(phba->host->host_lock);
191 ha_copy = phba->work_ha;
192 phba->work_ha = 0;
193 work_hba_events=phba->work_hba_events;
194 spin_unlock_irq(phba->host->host_lock);
195
196 if (ha_copy & HA_ERATT)
197 lpfc_handle_eratt(phba);
198
199 if (ha_copy & HA_MBATT)
200 lpfc_sli_handle_mb_event(phba);
201
202 if (ha_copy & HA_LATT)
203 lpfc_handle_latt(phba);
204
205 if (work_hba_events & WORKER_DISC_TMO)
206 lpfc_disc_timeout_handler(phba);
207
208 if (work_hba_events & WORKER_ELS_TMO)
209 lpfc_els_timeout_handler(phba);
210
211 if (work_hba_events & WORKER_MBOX_TMO)
212 lpfc_mbox_timeout_handler(phba);
213
214 if (work_hba_events & WORKER_FDMI_TMO)
215 lpfc_fdmi_tmo_handler(phba);
216
217 spin_lock_irq(phba->host->host_lock);
218 phba->work_hba_events &= ~work_hba_events;
219 spin_unlock_irq(phba->host->host_lock);
220
221 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
222 pring = &phba->sli.ring[i];
223 if ((ha_copy & HA_RXATT)
224 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
225 if (pring->flag & LPFC_STOP_IOCB_MASK) {
226 pring->flag |= LPFC_DEFERRED_RING_EVENT;
227 } else {
228 lpfc_sli_handle_slow_ring_event(phba, pring,
229 (ha_copy &
230 HA_RXMASK));
231 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
232 }
233 /*
234 * Turn on Ring interrupts
235 */
236 spin_lock_irq(phba->host->host_lock);
237 control = readl(phba->HCregaddr);
238 control |= (HC_R0INT_ENA << i);
239 writel(control, phba->HCregaddr);
240 readl(phba->HCregaddr); /* flush */
241 spin_unlock_irq(phba->host->host_lock);
242 }
243 }
244
245 lpfc_work_list_done (phba);
246
247 }
248
249 static int
250 check_work_wait_done(struct lpfc_hba *phba) {
251
252 spin_lock_irq(phba->host->host_lock);
253 if (phba->work_ha ||
254 phba->work_hba_events ||
255 (!list_empty(&phba->work_list)) ||
256 kthread_should_stop()) {
257 spin_unlock_irq(phba->host->host_lock);
258 return 1;
259 } else {
260 spin_unlock_irq(phba->host->host_lock);
261 return 0;
262 }
263 }
264
265 int
266 lpfc_do_work(void *p)
267 {
268 struct lpfc_hba *phba = p;
269 int rc;
270 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
271
272 set_user_nice(current, -20);
273 phba->work_wait = &work_waitq;
274
275 while (1) {
276
277 rc = wait_event_interruptible(work_waitq,
278 check_work_wait_done(phba));
279 BUG_ON(rc);
280
281 if (kthread_should_stop())
282 break;
283
284 lpfc_work_done(phba);
285
286 }
287 phba->work_wait = NULL;
288 return 0;
289 }
290
291 /*
292 * This is only called to handle FC worker events. Since this a rare
293 * occurance, we allocate a struct lpfc_work_evt structure here instead of
294 * embedding it in the IOCB.
295 */
296 int
297 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
298 uint32_t evt)
299 {
300 struct lpfc_work_evt *evtp;
301
302 /*
303 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
304 * be queued to worker thread for processing
305 */
306 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
307 if (!evtp)
308 return 0;
309
310 evtp->evt_arg1 = arg1;
311 evtp->evt_arg2 = arg2;
312 evtp->evt = evt;
313
314 spin_lock_irq(phba->host->host_lock);
315 list_add_tail(&evtp->evt_listp, &phba->work_list);
316 if (phba->work_wait)
317 wake_up(phba->work_wait);
318 spin_unlock_irq(phba->host->host_lock);
319
320 return 1;
321 }
322
323 int
324 lpfc_linkdown(struct lpfc_hba * phba)
325 {
326 struct lpfc_sli *psli;
327 struct lpfc_nodelist *ndlp, *next_ndlp;
328 struct list_head *listp, *node_list[7];
329 LPFC_MBOXQ_t *mb;
330 int rc, i;
331
332 psli = &phba->sli;
333 /* sysfs or selective reset may call this routine to clean up */
334 if (phba->hba_state >= LPFC_LINK_DOWN) {
335 if (phba->hba_state == LPFC_LINK_DOWN)
336 return 0;
337
338 spin_lock_irq(phba->host->host_lock);
339 phba->hba_state = LPFC_LINK_DOWN;
340 spin_unlock_irq(phba->host->host_lock);
341 }
342
343 /* Clean up any firmware default rpi's */
344 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
345 lpfc_unreg_did(phba, 0xffffffff, mb);
346 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
347 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
348 == MBX_NOT_FINISHED) {
349 mempool_free( mb, phba->mbox_mem_pool);
350 }
351 }
352
353 /* Cleanup any outstanding RSCN activity */
354 lpfc_els_flush_rscn(phba);
355
356 /* Cleanup any outstanding ELS commands */
357 lpfc_els_flush_cmd(phba);
358
359 /* Issue a LINK DOWN event to all nodes */
360 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
361 node_list[1] = &phba->fc_nlpmap_list;
362 node_list[2] = &phba->fc_nlpunmap_list;
363 node_list[3] = &phba->fc_prli_list;
364 node_list[4] = &phba->fc_reglogin_list;
365 node_list[5] = &phba->fc_adisc_list;
366 node_list[6] = &phba->fc_plogi_list;
367 for (i = 0; i < 7; i++) {
368 listp = node_list[i];
369 if (list_empty(listp))
370 continue;
371
372 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
373
374 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
375 NLP_EVT_DEVICE_RECOVERY);
376
377 /* Check config parameter use-adisc or FCP-2 */
378 if ((rc != NLP_STE_FREED_NODE) &&
379 (phba->cfg_use_adisc == 0) &&
380 !(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
381 /* We know we will have to relogin, so
382 * unreglogin the rpi right now to fail
383 * any outstanding I/Os quickly.
384 */
385 lpfc_unreg_rpi(phba, ndlp);
386 }
387 }
388 }
389
390 /* free any ndlp's on unused list */
391 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
392 nlp_listp) {
393 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
394 }
395
396 /* Setup myDID for link up if we are in pt2pt mode */
397 if (phba->fc_flag & FC_PT2PT) {
398 phba->fc_myDID = 0;
399 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
400 lpfc_config_link(phba, mb);
401 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
402 if (lpfc_sli_issue_mbox
403 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
404 == MBX_NOT_FINISHED) {
405 mempool_free( mb, phba->mbox_mem_pool);
406 }
407 }
408 spin_lock_irq(phba->host->host_lock);
409 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
410 spin_unlock_irq(phba->host->host_lock);
411 }
412 spin_lock_irq(phba->host->host_lock);
413 phba->fc_flag &= ~FC_LBIT;
414 spin_unlock_irq(phba->host->host_lock);
415
416 /* Turn off discovery timer if its running */
417 lpfc_can_disctmo(phba);
418
419 /* Must process IOCBs on all rings to handle ABORTed I/Os */
420 return 0;
421 }
422
423 static int
424 lpfc_linkup(struct lpfc_hba * phba)
425 {
426 struct lpfc_nodelist *ndlp, *next_ndlp;
427 struct list_head *listp, *node_list[7];
428 int i;
429
430 spin_lock_irq(phba->host->host_lock);
431 phba->hba_state = LPFC_LINK_UP;
432 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
433 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
434 phba->fc_flag |= FC_NDISC_ACTIVE;
435 phba->fc_ns_retry = 0;
436 spin_unlock_irq(phba->host->host_lock);
437
438
439 node_list[0] = &phba->fc_plogi_list;
440 node_list[1] = &phba->fc_adisc_list;
441 node_list[2] = &phba->fc_reglogin_list;
442 node_list[3] = &phba->fc_prli_list;
443 node_list[4] = &phba->fc_nlpunmap_list;
444 node_list[5] = &phba->fc_nlpmap_list;
445 node_list[6] = &phba->fc_npr_list;
446 for (i = 0; i < 7; i++) {
447 listp = node_list[i];
448 if (list_empty(listp))
449 continue;
450
451 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
452 if (phba->fc_flag & FC_LBIT) {
453 if (ndlp->nlp_type & NLP_FABRIC) {
454 /* On Linkup its safe to clean up the
455 * ndlp from Fabric connections.
456 */
457 lpfc_nlp_list(phba, ndlp,
458 NLP_UNUSED_LIST);
459 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
460 /* Fail outstanding IO now since device
461 * is marked for PLOGI.
462 */
463 lpfc_unreg_rpi(phba, ndlp);
464 }
465 }
466 }
467 }
468
469 /* free any ndlp's on unused list */
470 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
471 nlp_listp) {
472 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
473 }
474
475 return 0;
476 }
477
478 /*
479 * This routine handles processing a CLEAR_LA mailbox
480 * command upon completion. It is setup in the LPFC_MBOXQ
481 * as the completion routine when the command is
482 * handed off to the SLI layer.
483 */
484 void
485 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
486 {
487 struct lpfc_sli *psli;
488 MAILBOX_t *mb;
489 uint32_t control;
490
491 psli = &phba->sli;
492 mb = &pmb->mb;
493 /* Since we don't do discovery right now, turn these off here */
494 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
495 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
496 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
497
498 /* Check for error */
499 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
500 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
501 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
502 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
503 "state x%x\n",
504 phba->brd_no, mb->mbxStatus, phba->hba_state);
505
506 phba->hba_state = LPFC_HBA_ERROR;
507 goto out;
508 }
509
510 if (phba->fc_flag & FC_ABORT_DISCOVERY)
511 goto out;
512
513 phba->num_disc_nodes = 0;
514 /* go thru NPR list and issue ELS PLOGIs */
515 if (phba->fc_npr_cnt) {
516 lpfc_els_disc_plogi(phba);
517 }
518
519 if (!phba->num_disc_nodes) {
520 spin_lock_irq(phba->host->host_lock);
521 phba->fc_flag &= ~FC_NDISC_ACTIVE;
522 spin_unlock_irq(phba->host->host_lock);
523 }
524
525 phba->hba_state = LPFC_HBA_READY;
526
527 out:
528 /* Device Discovery completes */
529 lpfc_printf_log(phba,
530 KERN_INFO,
531 LOG_DISCOVERY,
532 "%d:0225 Device Discovery completes\n",
533 phba->brd_no);
534
535 mempool_free( pmb, phba->mbox_mem_pool);
536
537 spin_lock_irq(phba->host->host_lock);
538 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
539 if (phba->fc_flag & FC_ESTABLISH_LINK) {
540 phba->fc_flag &= ~FC_ESTABLISH_LINK;
541 }
542 spin_unlock_irq(phba->host->host_lock);
543
544 del_timer_sync(&phba->fc_estabtmo);
545
546 lpfc_can_disctmo(phba);
547
548 /* turn on Link Attention interrupts */
549 spin_lock_irq(phba->host->host_lock);
550 psli->sli_flag |= LPFC_PROCESS_LA;
551 control = readl(phba->HCregaddr);
552 control |= HC_LAINT_ENA;
553 writel(control, phba->HCregaddr);
554 readl(phba->HCregaddr); /* flush */
555 spin_unlock_irq(phba->host->host_lock);
556
557 return;
558 }
559
560 static void
561 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
562 {
563 struct lpfc_sli *psli = &phba->sli;
564 int rc;
565
566 if (pmb->mb.mbxStatus)
567 goto out;
568
569 mempool_free(pmb, phba->mbox_mem_pool);
570
571 if (phba->fc_topology == TOPOLOGY_LOOP &&
572 phba->fc_flag & FC_PUBLIC_LOOP &&
573 !(phba->fc_flag & FC_LBIT)) {
574 /* Need to wait for FAN - use discovery timer
575 * for timeout. hba_state is identically
576 * LPFC_LOCAL_CFG_LINK while waiting for FAN
577 */
578 lpfc_set_disctmo(phba);
579 return;
580 }
581
582 /* Start discovery by sending a FLOGI. hba_state is identically
583 * LPFC_FLOGI while waiting for FLOGI cmpl
584 */
585 phba->hba_state = LPFC_FLOGI;
586 lpfc_set_disctmo(phba);
587 lpfc_initial_flogi(phba);
588 return;
589
590 out:
591 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
592 "%d:0306 CONFIG_LINK mbxStatus error x%x "
593 "HBA state x%x\n",
594 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
595
596 lpfc_linkdown(phba);
597
598 phba->hba_state = LPFC_HBA_ERROR;
599
600 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
601 "%d:0200 CONFIG_LINK bad hba state x%x\n",
602 phba->brd_no, phba->hba_state);
603
604 lpfc_clear_la(phba, pmb);
605 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
606 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
607 if (rc == MBX_NOT_FINISHED) {
608 mempool_free(pmb, phba->mbox_mem_pool);
609 lpfc_disc_flush_list(phba);
610 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
611 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
612 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
613 phba->hba_state = LPFC_HBA_READY;
614 }
615 return;
616 }
617
618 static void
619 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
620 {
621 struct lpfc_sli *psli = &phba->sli;
622 MAILBOX_t *mb = &pmb->mb;
623 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
624
625
626 /* Check for error */
627 if (mb->mbxStatus) {
628 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
629 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
630 "%d:0319 READ_SPARAM mbxStatus error x%x "
631 "hba state x%x>\n",
632 phba->brd_no, mb->mbxStatus, phba->hba_state);
633
634 lpfc_linkdown(phba);
635 phba->hba_state = LPFC_HBA_ERROR;
636 goto out;
637 }
638
639 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
640 sizeof (struct serv_parm));
641 memcpy((uint8_t *) & phba->fc_nodename,
642 (uint8_t *) & phba->fc_sparam.nodeName,
643 sizeof (struct lpfc_name));
644 memcpy((uint8_t *) & phba->fc_portname,
645 (uint8_t *) & phba->fc_sparam.portName,
646 sizeof (struct lpfc_name));
647 lpfc_mbuf_free(phba, mp->virt, mp->phys);
648 kfree(mp);
649 mempool_free( pmb, phba->mbox_mem_pool);
650 return;
651
652 out:
653 pmb->context1 = NULL;
654 lpfc_mbuf_free(phba, mp->virt, mp->phys);
655 kfree(mp);
656 if (phba->hba_state != LPFC_CLEAR_LA) {
657 lpfc_clear_la(phba, pmb);
658 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
659 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
660 == MBX_NOT_FINISHED) {
661 mempool_free( pmb, phba->mbox_mem_pool);
662 lpfc_disc_flush_list(phba);
663 psli->ring[(psli->ip_ring)].flag &=
664 ~LPFC_STOP_IOCB_EVENT;
665 psli->ring[(psli->fcp_ring)].flag &=
666 ~LPFC_STOP_IOCB_EVENT;
667 psli->ring[(psli->next_ring)].flag &=
668 ~LPFC_STOP_IOCB_EVENT;
669 phba->hba_state = LPFC_HBA_READY;
670 }
671 } else {
672 mempool_free( pmb, phba->mbox_mem_pool);
673 }
674 return;
675 }
676
677 static void
678 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
679 {
680 int i;
681 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
682 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
683 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
684
685 spin_lock_irq(phba->host->host_lock);
686 switch (la->UlnkSpeed) {
687 case LA_1GHZ_LINK:
688 phba->fc_linkspeed = LA_1GHZ_LINK;
689 break;
690 case LA_2GHZ_LINK:
691 phba->fc_linkspeed = LA_2GHZ_LINK;
692 break;
693 case LA_4GHZ_LINK:
694 phba->fc_linkspeed = LA_4GHZ_LINK;
695 break;
696 default:
697 phba->fc_linkspeed = LA_UNKNW_LINK;
698 break;
699 }
700
701 phba->fc_topology = la->topology;
702
703 if (phba->fc_topology == TOPOLOGY_LOOP) {
704 /* Get Loop Map information */
705
706 if (la->il)
707 phba->fc_flag |= FC_LBIT;
708
709 phba->fc_myDID = la->granted_AL_PA;
710 i = la->un.lilpBde64.tus.f.bdeSize;
711
712 if (i == 0) {
713 phba->alpa_map[0] = 0;
714 } else {
715 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
716 int numalpa, j, k;
717 union {
718 uint8_t pamap[16];
719 struct {
720 uint32_t wd1;
721 uint32_t wd2;
722 uint32_t wd3;
723 uint32_t wd4;
724 } pa;
725 } un;
726 numalpa = phba->alpa_map[0];
727 j = 0;
728 while (j < numalpa) {
729 memset(un.pamap, 0, 16);
730 for (k = 1; j < numalpa; k++) {
731 un.pamap[k - 1] =
732 phba->alpa_map[j + 1];
733 j++;
734 if (k == 16)
735 break;
736 }
737 /* Link Up Event ALPA map */
738 lpfc_printf_log(phba,
739 KERN_WARNING,
740 LOG_LINK_EVENT,
741 "%d:1304 Link Up Event "
742 "ALPA map Data: x%x "
743 "x%x x%x x%x\n",
744 phba->brd_no,
745 un.pa.wd1, un.pa.wd2,
746 un.pa.wd3, un.pa.wd4);
747 }
748 }
749 }
750 } else {
751 phba->fc_myDID = phba->fc_pref_DID;
752 phba->fc_flag |= FC_LBIT;
753 }
754 spin_unlock_irq(phba->host->host_lock);
755
756 lpfc_linkup(phba);
757 if (sparam_mbox) {
758 lpfc_read_sparam(phba, sparam_mbox);
759 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
760 lpfc_sli_issue_mbox(phba, sparam_mbox,
761 (MBX_NOWAIT | MBX_STOP_IOCB));
762 }
763
764 if (cfglink_mbox) {
765 phba->hba_state = LPFC_LOCAL_CFG_LINK;
766 lpfc_config_link(phba, cfglink_mbox);
767 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
768 lpfc_sli_issue_mbox(phba, cfglink_mbox,
769 (MBX_NOWAIT | MBX_STOP_IOCB));
770 }
771 }
772
773 static void
774 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
775 uint32_t control;
776 struct lpfc_sli *psli = &phba->sli;
777
778 lpfc_linkdown(phba);
779
780 /* turn on Link Attention interrupts - no CLEAR_LA needed */
781 spin_lock_irq(phba->host->host_lock);
782 psli->sli_flag |= LPFC_PROCESS_LA;
783 control = readl(phba->HCregaddr);
784 control |= HC_LAINT_ENA;
785 writel(control, phba->HCregaddr);
786 readl(phba->HCregaddr); /* flush */
787 spin_unlock_irq(phba->host->host_lock);
788 }
789
790 /*
791 * This routine handles processing a READ_LA mailbox
792 * command upon completion. It is setup in the LPFC_MBOXQ
793 * as the completion routine when the command is
794 * handed off to the SLI layer.
795 */
796 void
797 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
798 {
799 READ_LA_VAR *la;
800 MAILBOX_t *mb = &pmb->mb;
801 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
802
803 /* Check for error */
804 if (mb->mbxStatus) {
805 lpfc_printf_log(phba,
806 KERN_INFO,
807 LOG_LINK_EVENT,
808 "%d:1307 READ_LA mbox error x%x state x%x\n",
809 phba->brd_no,
810 mb->mbxStatus, phba->hba_state);
811 lpfc_mbx_issue_link_down(phba);
812 phba->hba_state = LPFC_HBA_ERROR;
813 goto lpfc_mbx_cmpl_read_la_free_mbuf;
814 }
815
816 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
817
818 memcpy(&phba->alpa_map[0], mp->virt, 128);
819
820 spin_lock_irq(phba->host->host_lock);
821 if (la->pb)
822 phba->fc_flag |= FC_BYPASSED_MODE;
823 else
824 phba->fc_flag &= ~FC_BYPASSED_MODE;
825 spin_unlock_irq(phba->host->host_lock);
826
827 if (((phba->fc_eventTag + 1) < la->eventTag) ||
828 (phba->fc_eventTag == la->eventTag)) {
829 phba->fc_stat.LinkMultiEvent++;
830 if (la->attType == AT_LINK_UP) {
831 if (phba->fc_eventTag != 0)
832 lpfc_linkdown(phba);
833 }
834 }
835
836 phba->fc_eventTag = la->eventTag;
837
838 if (la->attType == AT_LINK_UP) {
839 phba->fc_stat.LinkUp++;
840 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
841 "%d:1303 Link Up Event x%x received "
842 "Data: x%x x%x x%x x%x\n",
843 phba->brd_no, la->eventTag, phba->fc_eventTag,
844 la->granted_AL_PA, la->UlnkSpeed,
845 phba->alpa_map[0]);
846 lpfc_mbx_process_link_up(phba, la);
847 } else {
848 phba->fc_stat.LinkDown++;
849 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
850 "%d:1305 Link Down Event x%x received "
851 "Data: x%x x%x x%x\n",
852 phba->brd_no, la->eventTag, phba->fc_eventTag,
853 phba->hba_state, phba->fc_flag);
854 lpfc_mbx_issue_link_down(phba);
855 }
856
857 lpfc_mbx_cmpl_read_la_free_mbuf:
858 lpfc_mbuf_free(phba, mp->virt, mp->phys);
859 kfree(mp);
860 mempool_free(pmb, phba->mbox_mem_pool);
861 return;
862 }
863
864 /*
865 * This routine handles processing a REG_LOGIN mailbox
866 * command upon completion. It is setup in the LPFC_MBOXQ
867 * as the completion routine when the command is
868 * handed off to the SLI layer.
869 */
870 void
871 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
872 {
873 struct lpfc_sli *psli;
874 MAILBOX_t *mb;
875 struct lpfc_dmabuf *mp;
876 struct lpfc_nodelist *ndlp;
877
878 psli = &phba->sli;
879 mb = &pmb->mb;
880
881 ndlp = (struct lpfc_nodelist *) pmb->context2;
882 mp = (struct lpfc_dmabuf *) (pmb->context1);
883
884 pmb->context1 = NULL;
885
886 /* Good status, call state machine */
887 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
888 lpfc_mbuf_free(phba, mp->virt, mp->phys);
889 kfree(mp);
890 mempool_free( pmb, phba->mbox_mem_pool);
891
892 return;
893 }
894
895 /*
896 * This routine handles processing a Fabric REG_LOGIN mailbox
897 * command upon completion. It is setup in the LPFC_MBOXQ
898 * as the completion routine when the command is
899 * handed off to the SLI layer.
900 */
901 void
902 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
903 {
904 struct lpfc_sli *psli;
905 MAILBOX_t *mb;
906 struct lpfc_dmabuf *mp;
907 struct lpfc_nodelist *ndlp;
908 struct lpfc_nodelist *ndlp_fdmi;
909
910
911 psli = &phba->sli;
912 mb = &pmb->mb;
913
914 ndlp = (struct lpfc_nodelist *) pmb->context2;
915 mp = (struct lpfc_dmabuf *) (pmb->context1);
916
917 if (mb->mbxStatus) {
918 lpfc_mbuf_free(phba, mp->virt, mp->phys);
919 kfree(mp);
920 mempool_free( pmb, phba->mbox_mem_pool);
921 mempool_free( ndlp, phba->nlp_mem_pool);
922
923 /* FLOGI failed, so just use loop map to make discovery list */
924 lpfc_disc_list_loopmap(phba);
925
926 /* Start discovery */
927 lpfc_disc_start(phba);
928 return;
929 }
930
931 pmb->context1 = NULL;
932
933 ndlp->nlp_rpi = mb->un.varWords[0];
934 ndlp->nlp_type |= NLP_FABRIC;
935 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
936 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
937
938 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
939 /* This NPort has been assigned an NPort_ID by the fabric as a
940 * result of the completed fabric login. Issue a State Change
941 * Registration (SCR) ELS request to the fabric controller
942 * (SCR_DID) so that this NPort gets RSCN events from the
943 * fabric.
944 */
945 lpfc_issue_els_scr(phba, SCR_DID, 0);
946
947 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
948 if (!ndlp) {
949 /* Allocate a new node instance. If the pool is empty,
950 * start the discovery process and skip the Nameserver
951 * login process. This is attempted again later on.
952 * Otherwise, issue a Port Login (PLOGI) to NameServer.
953 */
954 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
955 if (!ndlp) {
956 lpfc_disc_start(phba);
957 lpfc_mbuf_free(phba, mp->virt, mp->phys);
958 kfree(mp);
959 mempool_free( pmb, phba->mbox_mem_pool);
960 return;
961 } else {
962 lpfc_nlp_init(phba, ndlp, NameServer_DID);
963 ndlp->nlp_type |= NLP_FABRIC;
964 }
965 }
966 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
967 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
968 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
969 if (phba->cfg_fdmi_on) {
970 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
971 GFP_KERNEL);
972 if (ndlp_fdmi) {
973 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
974 ndlp_fdmi->nlp_type |= NLP_FABRIC;
975 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
976 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
977 }
978 }
979 }
980
981 lpfc_mbuf_free(phba, mp->virt, mp->phys);
982 kfree(mp);
983 mempool_free( pmb, phba->mbox_mem_pool);
984 return;
985 }
986
987 /*
988 * This routine handles processing a NameServer REG_LOGIN mailbox
989 * command upon completion. It is setup in the LPFC_MBOXQ
990 * as the completion routine when the command is
991 * handed off to the SLI layer.
992 */
993 void
994 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
995 {
996 struct lpfc_sli *psli;
997 MAILBOX_t *mb;
998 struct lpfc_dmabuf *mp;
999 struct lpfc_nodelist *ndlp;
1000
1001 psli = &phba->sli;
1002 mb = &pmb->mb;
1003
1004 ndlp = (struct lpfc_nodelist *) pmb->context2;
1005 mp = (struct lpfc_dmabuf *) (pmb->context1);
1006
1007 if (mb->mbxStatus) {
1008 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1009 kfree(mp);
1010 mempool_free( pmb, phba->mbox_mem_pool);
1011 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1012
1013 /* RegLogin failed, so just use loop map to make discovery
1014 list */
1015 lpfc_disc_list_loopmap(phba);
1016
1017 /* Start discovery */
1018 lpfc_disc_start(phba);
1019 return;
1020 }
1021
1022 pmb->context1 = NULL;
1023
1024 ndlp->nlp_rpi = mb->un.varWords[0];
1025 ndlp->nlp_type |= NLP_FABRIC;
1026 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1027 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1028
1029 if (phba->hba_state < LPFC_HBA_READY) {
1030 /* Link up discovery requires Fabrib registration. */
1031 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1032 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1033 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1034 }
1035
1036 phba->fc_ns_retry = 0;
1037 /* Good status, issue CT Request to NameServer */
1038 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1039 /* Cannot issue NameServer Query, so finish up discovery */
1040 lpfc_disc_start(phba);
1041 }
1042
1043 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1044 kfree(mp);
1045 mempool_free( pmb, phba->mbox_mem_pool);
1046
1047 return;
1048 }
1049
1050 static void
1051 lpfc_register_remote_port(struct lpfc_hba * phba,
1052 struct lpfc_nodelist * ndlp)
1053 {
1054 struct fc_rport *rport;
1055 struct lpfc_rport_data *rdata;
1056 struct fc_rport_identifiers rport_ids;
1057
1058 /* Remote port has reappeared. Re-register w/ FC transport */
1059 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1060 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1061 rport_ids.port_id = ndlp->nlp_DID;
1062 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1063
1064 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1065 if (!rport) {
1066 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1067 "Warning: fc_remote_port_add failed\n");
1068 return;
1069 }
1070
1071 /* initialize static port data */
1072 rport->maxframe_size = ndlp->nlp_maxframe;
1073 rport->supported_classes = ndlp->nlp_class_sup;
1074 rdata = rport->dd_data;
1075 rdata->pnode = ndlp;
1076
1077 if (ndlp->nlp_type & NLP_FCP_TARGET)
1078 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1079 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1080 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1081
1082
1083 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1084 fc_remote_port_rolechg(rport, rport_ids.roles);
1085
1086 if ((rport->scsi_target_id != -1) &&
1087 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1088 ndlp->nlp_sid = rport->scsi_target_id;
1089 }
1090
1091 return;
1092 }
1093
1094 static void
1095 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1096 struct lpfc_nodelist * ndlp)
1097 {
1098 struct fc_rport *rport = ndlp->rport;
1099 struct lpfc_rport_data *rdata = rport->dd_data;
1100
1101 ndlp->rport = NULL;
1102 rdata->pnode = NULL;
1103 fc_remote_port_delete(rport);
1104
1105 return;
1106 }
1107
1108 int
1109 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1110 {
1111 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1112 struct lpfc_sli *psli;
1113
1114 psli = &phba->sli;
1115 /* Sanity check to ensure we are not moving to / from the same list */
1116 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1117 if (list != NLP_NO_LIST)
1118 return 0;
1119
1120 spin_lock_irq(phba->host->host_lock);
1121 switch (nlp->nlp_flag & NLP_LIST_MASK) {
1122 case NLP_NO_LIST: /* Not on any list */
1123 break;
1124 case NLP_UNUSED_LIST:
1125 phba->fc_unused_cnt--;
1126 list_del(&nlp->nlp_listp);
1127 break;
1128 case NLP_PLOGI_LIST:
1129 phba->fc_plogi_cnt--;
1130 list_del(&nlp->nlp_listp);
1131 break;
1132 case NLP_ADISC_LIST:
1133 phba->fc_adisc_cnt--;
1134 list_del(&nlp->nlp_listp);
1135 break;
1136 case NLP_REGLOGIN_LIST:
1137 phba->fc_reglogin_cnt--;
1138 list_del(&nlp->nlp_listp);
1139 break;
1140 case NLP_PRLI_LIST:
1141 phba->fc_prli_cnt--;
1142 list_del(&nlp->nlp_listp);
1143 break;
1144 case NLP_UNMAPPED_LIST:
1145 phba->fc_unmap_cnt--;
1146 list_del(&nlp->nlp_listp);
1147 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1148 nlp->nlp_type &= ~NLP_FC_NODE;
1149 phba->nport_event_cnt++;
1150 if (nlp->rport)
1151 rport_del = unmapped;
1152 break;
1153 case NLP_MAPPED_LIST:
1154 phba->fc_map_cnt--;
1155 list_del(&nlp->nlp_listp);
1156 phba->nport_event_cnt++;
1157 if (nlp->rport)
1158 rport_del = mapped;
1159 break;
1160 case NLP_NPR_LIST:
1161 phba->fc_npr_cnt--;
1162 list_del(&nlp->nlp_listp);
1163 /* Stop delay tmo if taking node off NPR list */
1164 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1165 (list != NLP_NPR_LIST)) {
1166 spin_unlock_irq(phba->host->host_lock);
1167 lpfc_cancel_retry_delay_tmo(phba, nlp);
1168 spin_lock_irq(phba->host->host_lock);
1169 }
1170 break;
1171 }
1172
1173 nlp->nlp_flag &= ~NLP_LIST_MASK;
1174
1175 /* Add NPort <did> to <num> list */
1176 lpfc_printf_log(phba,
1177 KERN_INFO,
1178 LOG_NODE,
1179 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1180 phba->brd_no,
1181 nlp->nlp_DID, list, nlp->nlp_flag);
1182
1183 switch (list) {
1184 case NLP_NO_LIST: /* No list, just remove it */
1185 spin_unlock_irq(phba->host->host_lock);
1186 lpfc_nlp_remove(phba, nlp);
1187 spin_lock_irq(phba->host->host_lock);
1188 /* as node removed - stop further transport calls */
1189 rport_del = none;
1190 break;
1191 case NLP_UNUSED_LIST:
1192 nlp->nlp_flag |= list;
1193 /* Put it at the end of the unused list */
1194 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1195 phba->fc_unused_cnt++;
1196 break;
1197 case NLP_PLOGI_LIST:
1198 nlp->nlp_flag |= list;
1199 /* Put it at the end of the plogi list */
1200 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1201 phba->fc_plogi_cnt++;
1202 break;
1203 case NLP_ADISC_LIST:
1204 nlp->nlp_flag |= list;
1205 /* Put it at the end of the adisc list */
1206 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1207 phba->fc_adisc_cnt++;
1208 break;
1209 case NLP_REGLOGIN_LIST:
1210 nlp->nlp_flag |= list;
1211 /* Put it at the end of the reglogin list */
1212 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1213 phba->fc_reglogin_cnt++;
1214 break;
1215 case NLP_PRLI_LIST:
1216 nlp->nlp_flag |= list;
1217 /* Put it at the end of the prli list */
1218 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1219 phba->fc_prli_cnt++;
1220 break;
1221 case NLP_UNMAPPED_LIST:
1222 rport_add = unmapped;
1223 /* ensure all vestiges of "mapped" significance are gone */
1224 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1225 nlp->nlp_flag |= list;
1226 /* Put it at the end of the unmap list */
1227 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1228 phba->fc_unmap_cnt++;
1229 phba->nport_event_cnt++;
1230 /* stop nodev tmo if running */
1231 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1232 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1233 spin_unlock_irq(phba->host->host_lock);
1234 del_timer_sync(&nlp->nlp_tmofunc);
1235 spin_lock_irq(phba->host->host_lock);
1236 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1237 list_del_init(&nlp->nodev_timeout_evt.
1238 evt_listp);
1239
1240 }
1241 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1242 nlp->nlp_type |= NLP_FC_NODE;
1243 break;
1244 case NLP_MAPPED_LIST:
1245 rport_add = mapped;
1246 nlp->nlp_flag |= list;
1247 /* Put it at the end of the map list */
1248 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1249 phba->fc_map_cnt++;
1250 phba->nport_event_cnt++;
1251 /* stop nodev tmo if running */
1252 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1253 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1254 spin_unlock_irq(phba->host->host_lock);
1255 del_timer_sync(&nlp->nlp_tmofunc);
1256 spin_lock_irq(phba->host->host_lock);
1257 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1258 list_del_init(&nlp->nodev_timeout_evt.
1259 evt_listp);
1260
1261 }
1262 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1263 break;
1264 case NLP_NPR_LIST:
1265 nlp->nlp_flag |= list;
1266 /* Put it at the end of the npr list */
1267 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1268 phba->fc_npr_cnt++;
1269
1270 if (!(nlp->nlp_flag & NLP_NODEV_TMO))
1271 mod_timer(&nlp->nlp_tmofunc,
1272 jiffies + HZ * phba->cfg_nodev_tmo);
1273
1274 nlp->nlp_flag |= NLP_NODEV_TMO;
1275 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1276 break;
1277 case NLP_JUST_DQ:
1278 break;
1279 }
1280
1281 spin_unlock_irq(phba->host->host_lock);
1282
1283 /*
1284 * We make all the calls into the transport after we have
1285 * moved the node between lists. This so that we don't
1286 * release the lock while in-between lists.
1287 */
1288
1289 /* Don't upcall midlayer if we're unloading */
1290 if (!(phba->fc_flag & FC_UNLOADING)) {
1291 /*
1292 * We revalidate the rport pointer as the "add" function
1293 * may have removed the remote port.
1294 */
1295 if ((rport_del != none) && nlp->rport)
1296 lpfc_unregister_remote_port(phba, nlp);
1297
1298 if (rport_add != none) {
1299 /*
1300 * Tell the fc transport about the port, if we haven't
1301 * already. If we have, and it's a scsi entity, be
1302 * sure to unblock any attached scsi devices
1303 */
1304 if (!nlp->rport)
1305 lpfc_register_remote_port(phba, nlp);
1306
1307 /*
1308 * if we added to Mapped list, but the remote port
1309 * registration failed or assigned a target id outside
1310 * our presentable range - move the node to the
1311 * Unmapped List
1312 */
1313 if ((rport_add == mapped) &&
1314 ((!nlp->rport) ||
1315 (nlp->rport->scsi_target_id == -1) ||
1316 (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
1317 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1318 spin_lock_irq(phba->host->host_lock);
1319 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1320 spin_unlock_irq(phba->host->host_lock);
1321 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1322 }
1323 }
1324 }
1325 return 0;
1326 }
1327
1328 /*
1329 * Start / ReStart rescue timer for Discovery / RSCN handling
1330 */
1331 void
1332 lpfc_set_disctmo(struct lpfc_hba * phba)
1333 {
1334 uint32_t tmo;
1335
1336 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1337 /* For FAN, timeout should be greater then edtov */
1338 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1339 } else {
1340 /* Normal discovery timeout should be > then ELS/CT timeout
1341 * FC spec states we need 3 * ratov for CT requests
1342 */
1343 tmo = ((phba->fc_ratov * 3) + 3);
1344 }
1345
1346 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1347 spin_lock_irq(phba->host->host_lock);
1348 phba->fc_flag |= FC_DISC_TMO;
1349 spin_unlock_irq(phba->host->host_lock);
1350
1351 /* Start Discovery Timer state <hba_state> */
1352 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1353 "%d:0247 Start Discovery Timer state x%x "
1354 "Data: x%x x%lx x%x x%x\n",
1355 phba->brd_no,
1356 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1357 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1358
1359 return;
1360 }
1361
1362 /*
1363 * Cancel rescue timer for Discovery / RSCN handling
1364 */
1365 int
1366 lpfc_can_disctmo(struct lpfc_hba * phba)
1367 {
1368 /* Turn off discovery timer if its running */
1369 if (phba->fc_flag & FC_DISC_TMO) {
1370 spin_lock_irq(phba->host->host_lock);
1371 phba->fc_flag &= ~FC_DISC_TMO;
1372 spin_unlock_irq(phba->host->host_lock);
1373 del_timer_sync(&phba->fc_disctmo);
1374 phba->work_hba_events &= ~WORKER_DISC_TMO;
1375 }
1376
1377 /* Cancel Discovery Timer state <hba_state> */
1378 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1379 "%d:0248 Cancel Discovery Timer state x%x "
1380 "Data: x%x x%x x%x\n",
1381 phba->brd_no, phba->hba_state, phba->fc_flag,
1382 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1383
1384 return 0;
1385 }
1386
1387 /*
1388 * Check specified ring for outstanding IOCB on the SLI queue
1389 * Return true if iocb matches the specified nport
1390 */
1391 int
1392 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1393 struct lpfc_sli_ring * pring,
1394 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1395 {
1396 struct lpfc_sli *psli;
1397 IOCB_t *icmd;
1398
1399 psli = &phba->sli;
1400 icmd = &iocb->iocb;
1401 if (pring->ringno == LPFC_ELS_RING) {
1402 switch (icmd->ulpCommand) {
1403 case CMD_GEN_REQUEST64_CR:
1404 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1405 return 1;
1406 case CMD_ELS_REQUEST64_CR:
1407 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1408 return 1;
1409 case CMD_XMIT_ELS_RSP64_CX:
1410 if (iocb->context1 == (uint8_t *) ndlp)
1411 return 1;
1412 }
1413 } else if (pring->ringno == psli->ip_ring) {
1414
1415 } else if (pring->ringno == psli->fcp_ring) {
1416 /* Skip match check if waiting to relogin to FCP target */
1417 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1418 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1419 return 0;
1420 }
1421 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1422 return 1;
1423 }
1424 } else if (pring->ringno == psli->next_ring) {
1425
1426 }
1427 return 0;
1428 }
1429
1430 /*
1431 * Free resources / clean up outstanding I/Os
1432 * associated with nlp_rpi in the LPFC_NODELIST entry.
1433 */
1434 static int
1435 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1436 {
1437 struct lpfc_sli *psli;
1438 struct lpfc_sli_ring *pring;
1439 struct lpfc_iocbq *iocb, *next_iocb;
1440 IOCB_t *icmd;
1441 uint32_t rpi, i;
1442
1443 /*
1444 * Everything that matches on txcmplq will be returned
1445 * by firmware with a no rpi error.
1446 */
1447 psli = &phba->sli;
1448 rpi = ndlp->nlp_rpi;
1449 if (rpi) {
1450 /* Now process each ring */
1451 for (i = 0; i < psli->num_rings; i++) {
1452 pring = &psli->ring[i];
1453
1454 spin_lock_irq(phba->host->host_lock);
1455 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1456 list) {
1457 /*
1458 * Check to see if iocb matches the nport we are
1459 * looking for
1460 */
1461 if ((lpfc_check_sli_ndlp
1462 (phba, pring, iocb, ndlp))) {
1463 /* It matches, so deque and call compl
1464 with an error */
1465 list_del(&iocb->list);
1466 pring->txq_cnt--;
1467 if (iocb->iocb_cmpl) {
1468 icmd = &iocb->iocb;
1469 icmd->ulpStatus =
1470 IOSTAT_LOCAL_REJECT;
1471 icmd->un.ulpWord[4] =
1472 IOERR_SLI_ABORTED;
1473 spin_unlock_irq(phba->host->
1474 host_lock);
1475 (iocb->iocb_cmpl) (phba,
1476 iocb, iocb);
1477 spin_lock_irq(phba->host->
1478 host_lock);
1479 } else
1480 lpfc_sli_release_iocbq(phba,
1481 iocb);
1482 }
1483 }
1484 spin_unlock_irq(phba->host->host_lock);
1485
1486 }
1487 }
1488 return 0;
1489 }
1490
1491 /*
1492 * Free rpi associated with LPFC_NODELIST entry.
1493 * This routine is called from lpfc_freenode(), when we are removing
1494 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1495 * LOGO that completes successfully, and we are waiting to PLOGI back
1496 * to the remote NPort. In addition, it is called after we receive
1497 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1498 * we are waiting to PLOGI back to the remote NPort.
1499 */
1500 int
1501 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1502 {
1503 LPFC_MBOXQ_t *mbox;
1504 int rc;
1505
1506 if (ndlp->nlp_rpi) {
1507 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1508 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1509 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1510 rc = lpfc_sli_issue_mbox
1511 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1512 if (rc == MBX_NOT_FINISHED)
1513 mempool_free( mbox, phba->mbox_mem_pool);
1514 }
1515 lpfc_no_rpi(phba, ndlp);
1516 ndlp->nlp_rpi = 0;
1517 return 1;
1518 }
1519 return 0;
1520 }
1521
1522 /*
1523 * Free resources associated with LPFC_NODELIST entry
1524 * so it can be freed.
1525 */
1526 static int
1527 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1528 {
1529 LPFC_MBOXQ_t *mb;
1530 LPFC_MBOXQ_t *nextmb;
1531 struct lpfc_dmabuf *mp;
1532
1533 /* Cleanup node for NPort <nlp_DID> */
1534 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1535 "%d:0900 Cleanup node for NPort x%x "
1536 "Data: x%x x%x x%x\n",
1537 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1538 ndlp->nlp_state, ndlp->nlp_rpi);
1539
1540 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1541
1542 /*
1543 * if unloading the driver - just leave the remote port in place.
1544 * The driver unload will force the attached devices to detach
1545 * and flush cache's w/o generating flush errors.
1546 */
1547 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1548 lpfc_unregister_remote_port(phba, ndlp);
1549 ndlp->nlp_sid = NLP_NO_SID;
1550 }
1551
1552 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1553 if ((mb = phba->sli.mbox_active)) {
1554 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1555 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1556 mb->context2 = NULL;
1557 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1558 }
1559 }
1560
1561 spin_lock_irq(phba->host->host_lock);
1562 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1563 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1564 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1565 mp = (struct lpfc_dmabuf *) (mb->context1);
1566 if (mp) {
1567 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1568 kfree(mp);
1569 }
1570 list_del(&mb->list);
1571 mempool_free(mb, phba->mbox_mem_pool);
1572 }
1573 }
1574 spin_unlock_irq(phba->host->host_lock);
1575
1576 lpfc_els_abort(phba,ndlp,0);
1577 spin_lock_irq(phba->host->host_lock);
1578 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1579 spin_unlock_irq(phba->host->host_lock);
1580 del_timer_sync(&ndlp->nlp_tmofunc);
1581
1582 ndlp->nlp_last_elscmd = 0;
1583 del_timer_sync(&ndlp->nlp_delayfunc);
1584
1585 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1586 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1587 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1588 list_del_init(&ndlp->els_retry_evt.evt_listp);
1589
1590 lpfc_unreg_rpi(phba, ndlp);
1591
1592 return 0;
1593 }
1594
1595 /*
1596 * Check to see if we can free the nlp back to the freelist.
1597 * If we are in the middle of using the nlp in the discovery state
1598 * machine, defer the free till we reach the end of the state machine.
1599 */
1600 int
1601 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1602 {
1603 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1604 spin_lock_irq(phba->host->host_lock);
1605 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1606 spin_unlock_irq(phba->host->host_lock);
1607 del_timer_sync(&ndlp->nlp_tmofunc);
1608 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1609 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1610
1611 }
1612
1613
1614 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1615 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1616 }
1617
1618 if (ndlp->nlp_disc_refcnt) {
1619 spin_lock_irq(phba->host->host_lock);
1620 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1621 spin_unlock_irq(phba->host->host_lock);
1622 } else {
1623 lpfc_freenode(phba, ndlp);
1624 mempool_free( ndlp, phba->nlp_mem_pool);
1625 }
1626 return 0;
1627 }
1628
1629 static int
1630 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1631 {
1632 D_ID mydid;
1633 D_ID ndlpdid;
1634 D_ID matchdid;
1635
1636 if (did == Bcast_DID)
1637 return 0;
1638
1639 if (ndlp->nlp_DID == 0) {
1640 return 0;
1641 }
1642
1643 /* First check for Direct match */
1644 if (ndlp->nlp_DID == did)
1645 return 1;
1646
1647 /* Next check for area/domain identically equals 0 match */
1648 mydid.un.word = phba->fc_myDID;
1649 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1650 return 0;
1651 }
1652
1653 matchdid.un.word = did;
1654 ndlpdid.un.word = ndlp->nlp_DID;
1655 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1656 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1657 (mydid.un.b.area == matchdid.un.b.area)) {
1658 if ((ndlpdid.un.b.domain == 0) &&
1659 (ndlpdid.un.b.area == 0)) {
1660 if (ndlpdid.un.b.id)
1661 return 1;
1662 }
1663 return 0;
1664 }
1665
1666 matchdid.un.word = ndlp->nlp_DID;
1667 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1668 (mydid.un.b.area == ndlpdid.un.b.area)) {
1669 if ((matchdid.un.b.domain == 0) &&
1670 (matchdid.un.b.area == 0)) {
1671 if (matchdid.un.b.id)
1672 return 1;
1673 }
1674 }
1675 }
1676 return 0;
1677 }
1678
1679 /* Search for a nodelist entry on a specific list */
1680 struct lpfc_nodelist *
1681 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1682 {
1683 struct lpfc_nodelist *ndlp, *next_ndlp;
1684 uint32_t data1;
1685
1686 spin_lock_irq(phba->host->host_lock);
1687 if (order & NLP_SEARCH_UNMAPPED) {
1688 list_for_each_entry_safe(ndlp, next_ndlp,
1689 &phba->fc_nlpunmap_list, nlp_listp) {
1690 if (lpfc_matchdid(phba, ndlp, did)) {
1691 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1692 ((uint32_t) ndlp->nlp_xri << 16) |
1693 ((uint32_t) ndlp->nlp_type << 8) |
1694 ((uint32_t) ndlp->nlp_rpi & 0xff));
1695 /* FIND node DID unmapped */
1696 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1697 "%d:0929 FIND node DID unmapped"
1698 " Data: x%p x%x x%x x%x\n",
1699 phba->brd_no,
1700 ndlp, ndlp->nlp_DID,
1701 ndlp->nlp_flag, data1);
1702 spin_unlock_irq(phba->host->host_lock);
1703 return ndlp;
1704 }
1705 }
1706 }
1707
1708 if (order & NLP_SEARCH_MAPPED) {
1709 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1710 nlp_listp) {
1711 if (lpfc_matchdid(phba, ndlp, did)) {
1712
1713 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1714 ((uint32_t) ndlp->nlp_xri << 16) |
1715 ((uint32_t) ndlp->nlp_type << 8) |
1716 ((uint32_t) ndlp->nlp_rpi & 0xff));
1717 /* FIND node DID mapped */
1718 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1719 "%d:0930 FIND node DID mapped "
1720 "Data: x%p x%x x%x x%x\n",
1721 phba->brd_no,
1722 ndlp, ndlp->nlp_DID,
1723 ndlp->nlp_flag, data1);
1724 spin_unlock_irq(phba->host->host_lock);
1725 return ndlp;
1726 }
1727 }
1728 }
1729
1730 if (order & NLP_SEARCH_PLOGI) {
1731 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1732 nlp_listp) {
1733 if (lpfc_matchdid(phba, ndlp, did)) {
1734
1735 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1736 ((uint32_t) ndlp->nlp_xri << 16) |
1737 ((uint32_t) ndlp->nlp_type << 8) |
1738 ((uint32_t) ndlp->nlp_rpi & 0xff));
1739 /* LOG change to PLOGI */
1740 /* FIND node DID plogi */
1741 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1742 "%d:0908 FIND node DID plogi "
1743 "Data: x%p x%x x%x x%x\n",
1744 phba->brd_no,
1745 ndlp, ndlp->nlp_DID,
1746 ndlp->nlp_flag, data1);
1747 spin_unlock_irq(phba->host->host_lock);
1748 return ndlp;
1749 }
1750 }
1751 }
1752
1753 if (order & NLP_SEARCH_ADISC) {
1754 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1755 nlp_listp) {
1756 if (lpfc_matchdid(phba, ndlp, did)) {
1757
1758 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1759 ((uint32_t) ndlp->nlp_xri << 16) |
1760 ((uint32_t) ndlp->nlp_type << 8) |
1761 ((uint32_t) ndlp->nlp_rpi & 0xff));
1762 /* LOG change to ADISC */
1763 /* FIND node DID adisc */
1764 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1765 "%d:0931 FIND node DID adisc "
1766 "Data: x%p x%x x%x x%x\n",
1767 phba->brd_no,
1768 ndlp, ndlp->nlp_DID,
1769 ndlp->nlp_flag, data1);
1770 spin_unlock_irq(phba->host->host_lock);
1771 return ndlp;
1772 }
1773 }
1774 }
1775
1776 if (order & NLP_SEARCH_REGLOGIN) {
1777 list_for_each_entry_safe(ndlp, next_ndlp,
1778 &phba->fc_reglogin_list, nlp_listp) {
1779 if (lpfc_matchdid(phba, ndlp, did)) {
1780
1781 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1782 ((uint32_t) ndlp->nlp_xri << 16) |
1783 ((uint32_t) ndlp->nlp_type << 8) |
1784 ((uint32_t) ndlp->nlp_rpi & 0xff));
1785 /* LOG change to REGLOGIN */
1786 /* FIND node DID reglogin */
1787 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1788 "%d:0901 FIND node DID reglogin"
1789 " Data: x%p x%x x%x x%x\n",
1790 phba->brd_no,
1791 ndlp, ndlp->nlp_DID,
1792 ndlp->nlp_flag, data1);
1793 spin_unlock_irq(phba->host->host_lock);
1794 return ndlp;
1795 }
1796 }
1797 }
1798
1799 if (order & NLP_SEARCH_PRLI) {
1800 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1801 nlp_listp) {
1802 if (lpfc_matchdid(phba, ndlp, did)) {
1803
1804 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1805 ((uint32_t) ndlp->nlp_xri << 16) |
1806 ((uint32_t) ndlp->nlp_type << 8) |
1807 ((uint32_t) ndlp->nlp_rpi & 0xff));
1808 /* LOG change to PRLI */
1809 /* FIND node DID prli */
1810 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1811 "%d:0902 FIND node DID prli "
1812 "Data: x%p x%x x%x x%x\n",
1813 phba->brd_no,
1814 ndlp, ndlp->nlp_DID,
1815 ndlp->nlp_flag, data1);
1816 spin_unlock_irq(phba->host->host_lock);
1817 return ndlp;
1818 }
1819 }
1820 }
1821
1822 if (order & NLP_SEARCH_NPR) {
1823 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1824 nlp_listp) {
1825 if (lpfc_matchdid(phba, ndlp, did)) {
1826
1827 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1828 ((uint32_t) ndlp->nlp_xri << 16) |
1829 ((uint32_t) ndlp->nlp_type << 8) |
1830 ((uint32_t) ndlp->nlp_rpi & 0xff));
1831 /* LOG change to NPR */
1832 /* FIND node DID npr */
1833 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1834 "%d:0903 FIND node DID npr "
1835 "Data: x%p x%x x%x x%x\n",
1836 phba->brd_no,
1837 ndlp, ndlp->nlp_DID,
1838 ndlp->nlp_flag, data1);
1839 spin_unlock_irq(phba->host->host_lock);
1840 return ndlp;
1841 }
1842 }
1843 }
1844
1845 if (order & NLP_SEARCH_UNUSED) {
1846 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1847 nlp_listp) {
1848 if (lpfc_matchdid(phba, ndlp, did)) {
1849
1850 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1851 ((uint32_t) ndlp->nlp_xri << 16) |
1852 ((uint32_t) ndlp->nlp_type << 8) |
1853 ((uint32_t) ndlp->nlp_rpi & 0xff));
1854 /* LOG change to UNUSED */
1855 /* FIND node DID unused */
1856 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1857 "%d:0905 FIND node DID unused "
1858 "Data: x%p x%x x%x x%x\n",
1859 phba->brd_no,
1860 ndlp, ndlp->nlp_DID,
1861 ndlp->nlp_flag, data1);
1862 spin_unlock_irq(phba->host->host_lock);
1863 return ndlp;
1864 }
1865 }
1866 }
1867
1868 spin_unlock_irq(phba->host->host_lock);
1869
1870 /* FIND node did <did> NOT FOUND */
1871 lpfc_printf_log(phba,
1872 KERN_INFO,
1873 LOG_NODE,
1874 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1875 phba->brd_no, did, order);
1876
1877 /* no match found */
1878 return NULL;
1879 }
1880
1881 struct lpfc_nodelist *
1882 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1883 {
1884 struct lpfc_nodelist *ndlp;
1885 uint32_t flg;
1886
1887 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1888 if (!ndlp) {
1889 if ((phba->fc_flag & FC_RSCN_MODE) &&
1890 ((lpfc_rscn_payload_check(phba, did) == 0)))
1891 return NULL;
1892 ndlp = (struct lpfc_nodelist *)
1893 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1894 if (!ndlp)
1895 return NULL;
1896 lpfc_nlp_init(phba, ndlp, did);
1897 ndlp->nlp_state = NLP_STE_NPR_NODE;
1898 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1899 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1900 return ndlp;
1901 }
1902 if (phba->fc_flag & FC_RSCN_MODE) {
1903 if (lpfc_rscn_payload_check(phba, did)) {
1904 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1905
1906 /* Since this node is marked for discovery,
1907 * delay timeout is not needed.
1908 */
1909 if (ndlp->nlp_flag & NLP_DELAY_TMO)
1910 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1911 } else
1912 ndlp = NULL;
1913 } else {
1914 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1915 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1916 return NULL;
1917 ndlp->nlp_state = NLP_STE_NPR_NODE;
1918 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1919 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1920 }
1921 return ndlp;
1922 }
1923
1924 /* Build a list of nodes to discover based on the loopmap */
1925 void
1926 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1927 {
1928 int j;
1929 uint32_t alpa, index;
1930
1931 if (phba->hba_state <= LPFC_LINK_DOWN) {
1932 return;
1933 }
1934 if (phba->fc_topology != TOPOLOGY_LOOP) {
1935 return;
1936 }
1937
1938 /* Check for loop map present or not */
1939 if (phba->alpa_map[0]) {
1940 for (j = 1; j <= phba->alpa_map[0]; j++) {
1941 alpa = phba->alpa_map[j];
1942
1943 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1944 continue;
1945 }
1946 lpfc_setup_disc_node(phba, alpa);
1947 }
1948 } else {
1949 /* No alpamap, so try all alpa's */
1950 for (j = 0; j < FC_MAXLOOP; j++) {
1951 /* If cfg_scan_down is set, start from highest
1952 * ALPA (0xef) to lowest (0x1).
1953 */
1954 if (phba->cfg_scan_down)
1955 index = j;
1956 else
1957 index = FC_MAXLOOP - j - 1;
1958 alpa = lpfcAlpaArray[index];
1959 if ((phba->fc_myDID & 0xff) == alpa) {
1960 continue;
1961 }
1962
1963 lpfc_setup_disc_node(phba, alpa);
1964 }
1965 }
1966 return;
1967 }
1968
1969 /* Start Link up / RSCN discovery on NPR list */
1970 void
1971 lpfc_disc_start(struct lpfc_hba * phba)
1972 {
1973 struct lpfc_sli *psli;
1974 LPFC_MBOXQ_t *mbox;
1975 struct lpfc_nodelist *ndlp, *next_ndlp;
1976 uint32_t did_changed, num_sent;
1977 uint32_t clear_la_pending;
1978 int rc;
1979
1980 psli = &phba->sli;
1981
1982 if (phba->hba_state <= LPFC_LINK_DOWN) {
1983 return;
1984 }
1985 if (phba->hba_state == LPFC_CLEAR_LA)
1986 clear_la_pending = 1;
1987 else
1988 clear_la_pending = 0;
1989
1990 if (phba->hba_state < LPFC_HBA_READY) {
1991 phba->hba_state = LPFC_DISC_AUTH;
1992 }
1993 lpfc_set_disctmo(phba);
1994
1995 if (phba->fc_prevDID == phba->fc_myDID) {
1996 did_changed = 0;
1997 } else {
1998 did_changed = 1;
1999 }
2000 phba->fc_prevDID = phba->fc_myDID;
2001 phba->num_disc_nodes = 0;
2002
2003 /* Start Discovery state <hba_state> */
2004 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2005 "%d:0202 Start Discovery hba state x%x "
2006 "Data: x%x x%x x%x\n",
2007 phba->brd_no, phba->hba_state, phba->fc_flag,
2008 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
2009
2010 /* If our did changed, we MUST do PLOGI */
2011 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2012 nlp_listp) {
2013 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2014 if (did_changed) {
2015 spin_lock_irq(phba->host->host_lock);
2016 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2017 spin_unlock_irq(phba->host->host_lock);
2018 }
2019 }
2020 }
2021
2022 /* First do ADISCs - if any */
2023 num_sent = lpfc_els_disc_adisc(phba);
2024
2025 if (num_sent)
2026 return;
2027
2028 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
2029 /* If we get here, there is nothing to ADISC */
2030 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
2031 phba->hba_state = LPFC_CLEAR_LA;
2032 lpfc_clear_la(phba, mbox);
2033 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2034 rc = lpfc_sli_issue_mbox(phba, mbox,
2035 (MBX_NOWAIT | MBX_STOP_IOCB));
2036 if (rc == MBX_NOT_FINISHED) {
2037 mempool_free( mbox, phba->mbox_mem_pool);
2038 lpfc_disc_flush_list(phba);
2039 psli->ring[(psli->ip_ring)].flag &=
2040 ~LPFC_STOP_IOCB_EVENT;
2041 psli->ring[(psli->fcp_ring)].flag &=
2042 ~LPFC_STOP_IOCB_EVENT;
2043 psli->ring[(psli->next_ring)].flag &=
2044 ~LPFC_STOP_IOCB_EVENT;
2045 phba->hba_state = LPFC_HBA_READY;
2046 }
2047 }
2048 } else {
2049 /* Next do PLOGIs - if any */
2050 num_sent = lpfc_els_disc_plogi(phba);
2051
2052 if (num_sent)
2053 return;
2054
2055 if (phba->fc_flag & FC_RSCN_MODE) {
2056 /* Check to see if more RSCNs came in while we
2057 * were processing this one.
2058 */
2059 if ((phba->fc_rscn_id_cnt == 0) &&
2060 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2061 spin_lock_irq(phba->host->host_lock);
2062 phba->fc_flag &= ~FC_RSCN_MODE;
2063 spin_unlock_irq(phba->host->host_lock);
2064 } else
2065 lpfc_els_handle_rscn(phba);
2066 }
2067 }
2068 return;
2069 }
2070
2071 /*
2072 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2073 * ring the match the sppecified nodelist.
2074 */
2075 static void
2076 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2077 {
2078 struct lpfc_sli *psli;
2079 IOCB_t *icmd;
2080 struct lpfc_iocbq *iocb, *next_iocb;
2081 struct lpfc_sli_ring *pring;
2082 struct lpfc_dmabuf *mp;
2083
2084 psli = &phba->sli;
2085 pring = &psli->ring[LPFC_ELS_RING];
2086
2087 /* Error matching iocb on txq or txcmplq
2088 * First check the txq.
2089 */
2090 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2091 if (iocb->context1 != ndlp) {
2092 continue;
2093 }
2094 icmd = &iocb->iocb;
2095 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2096 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2097
2098 list_del(&iocb->list);
2099 pring->txq_cnt--;
2100 lpfc_els_free_iocb(phba, iocb);
2101 }
2102 }
2103
2104 /* Next check the txcmplq */
2105 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2106 if (iocb->context1 != ndlp) {
2107 continue;
2108 }
2109 icmd = &iocb->iocb;
2110 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2111 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2112
2113 iocb->iocb_cmpl = NULL;
2114 /* context2 = cmd, context2->next = rsp, context3 =
2115 bpl */
2116 if (iocb->context2) {
2117 /* Free the response IOCB before handling the
2118 command. */
2119
2120 mp = (struct lpfc_dmabuf *) (iocb->context2);
2121 mp = list_get_first(&mp->list,
2122 struct lpfc_dmabuf,
2123 list);
2124 if (mp) {
2125 /* Delay before releasing rsp buffer to
2126 * give UNREG mbox a chance to take
2127 * effect.
2128 */
2129 list_add(&mp->list,
2130 &phba->freebufList);
2131 }
2132 lpfc_mbuf_free(phba,
2133 ((struct lpfc_dmabuf *)
2134 iocb->context2)->virt,
2135 ((struct lpfc_dmabuf *)
2136 iocb->context2)->phys);
2137 kfree(iocb->context2);
2138 }
2139
2140 if (iocb->context3) {
2141 lpfc_mbuf_free(phba,
2142 ((struct lpfc_dmabuf *)
2143 iocb->context3)->virt,
2144 ((struct lpfc_dmabuf *)
2145 iocb->context3)->phys);
2146 kfree(iocb->context3);
2147 }
2148 }
2149 }
2150
2151 return;
2152 }
2153
2154 void
2155 lpfc_disc_flush_list(struct lpfc_hba * phba)
2156 {
2157 struct lpfc_nodelist *ndlp, *next_ndlp;
2158
2159 if (phba->fc_plogi_cnt) {
2160 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2161 nlp_listp) {
2162 lpfc_free_tx(phba, ndlp);
2163 lpfc_nlp_remove(phba, ndlp);
2164 }
2165 }
2166 if (phba->fc_adisc_cnt) {
2167 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2168 nlp_listp) {
2169 lpfc_free_tx(phba, ndlp);
2170 lpfc_nlp_remove(phba, ndlp);
2171 }
2172 }
2173 return;
2174 }
2175
2176 /*****************************************************************************/
2177 /*
2178 * NAME: lpfc_disc_timeout
2179 *
2180 * FUNCTION: Fibre Channel driver discovery timeout routine.
2181 *
2182 * EXECUTION ENVIRONMENT: interrupt only
2183 *
2184 * CALLED FROM:
2185 * Timer function
2186 *
2187 * RETURNS:
2188 * none
2189 */
2190 /*****************************************************************************/
2191 void
2192 lpfc_disc_timeout(unsigned long ptr)
2193 {
2194 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2195 unsigned long flags = 0;
2196
2197 if (unlikely(!phba))
2198 return;
2199
2200 spin_lock_irqsave(phba->host->host_lock, flags);
2201 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2202 phba->work_hba_events |= WORKER_DISC_TMO;
2203 if (phba->work_wait)
2204 wake_up(phba->work_wait);
2205 }
2206 spin_unlock_irqrestore(phba->host->host_lock, flags);
2207 return;
2208 }
2209
2210 static void
2211 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2212 {
2213 struct lpfc_sli *psli;
2214 struct lpfc_nodelist *ndlp, *next_ndlp;
2215 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2216 int rc, clrlaerr = 0;
2217
2218 if (unlikely(!phba))
2219 return;
2220
2221 if (!(phba->fc_flag & FC_DISC_TMO))
2222 return;
2223
2224 psli = &phba->sli;
2225
2226 spin_lock_irq(phba->host->host_lock);
2227 phba->fc_flag &= ~FC_DISC_TMO;
2228 spin_unlock_irq(phba->host->host_lock);
2229
2230 switch (phba->hba_state) {
2231
2232 case LPFC_LOCAL_CFG_LINK:
2233 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2234 /* FAN timeout */
2235 lpfc_printf_log(phba,
2236 KERN_WARNING,
2237 LOG_DISCOVERY,
2238 "%d:0221 FAN timeout\n",
2239 phba->brd_no);
2240
2241 /* Start discovery by sending FLOGI, clean up old rpis */
2242 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2243 nlp_listp) {
2244 if (ndlp->nlp_type & NLP_FABRIC) {
2245 /* Clean up the ndlp on Fabric connections */
2246 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2247 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2248 /* Fail outstanding IO now since device
2249 * is marked for PLOGI.
2250 */
2251 lpfc_unreg_rpi(phba, ndlp);
2252 }
2253 }
2254 phba->hba_state = LPFC_FLOGI;
2255 lpfc_set_disctmo(phba);
2256 lpfc_initial_flogi(phba);
2257 break;
2258
2259 case LPFC_FLOGI:
2260 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2261 /* Initial FLOGI timeout */
2262 lpfc_printf_log(phba,
2263 KERN_ERR,
2264 LOG_DISCOVERY,
2265 "%d:0222 Initial FLOGI timeout\n",
2266 phba->brd_no);
2267
2268 /* Assume no Fabric and go on with discovery.
2269 * Check for outstanding ELS FLOGI to abort.
2270 */
2271
2272 /* FLOGI failed, so just use loop map to make discovery list */
2273 lpfc_disc_list_loopmap(phba);
2274
2275 /* Start discovery */
2276 lpfc_disc_start(phba);
2277 break;
2278
2279 case LPFC_FABRIC_CFG_LINK:
2280 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2281 NameServer login */
2282 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2283 "%d:0223 Timeout while waiting for NameServer "
2284 "login\n", phba->brd_no);
2285
2286 /* Next look for NameServer ndlp */
2287 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2288 if (ndlp)
2289 lpfc_nlp_remove(phba, ndlp);
2290 /* Start discovery */
2291 lpfc_disc_start(phba);
2292 break;
2293
2294 case LPFC_NS_QRY:
2295 /* Check for wait for NameServer Rsp timeout */
2296 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2297 "%d:0224 NameServer Query timeout "
2298 "Data: x%x x%x\n",
2299 phba->brd_no,
2300 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2301
2302 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2303 NameServer_DID);
2304 if (ndlp) {
2305 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2306 /* Try it one more time */
2307 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2308 if (rc == 0)
2309 break;
2310 }
2311 phba->fc_ns_retry = 0;
2312 }
2313
2314 /* Nothing to authenticate, so CLEAR_LA right now */
2315 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2316 if (!clearlambox) {
2317 clrlaerr = 1;
2318 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2319 "%d:0226 Device Discovery "
2320 "completion error\n",
2321 phba->brd_no);
2322 phba->hba_state = LPFC_HBA_ERROR;
2323 break;
2324 }
2325
2326 phba->hba_state = LPFC_CLEAR_LA;
2327 lpfc_clear_la(phba, clearlambox);
2328 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2329 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2330 (MBX_NOWAIT | MBX_STOP_IOCB));
2331 if (rc == MBX_NOT_FINISHED) {
2332 mempool_free(clearlambox, phba->mbox_mem_pool);
2333 clrlaerr = 1;
2334 break;
2335 }
2336
2337 /* Setup and issue mailbox INITIALIZE LINK command */
2338 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2339 if (!initlinkmbox) {
2340 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2341 "%d:0206 Device Discovery "
2342 "completion error\n",
2343 phba->brd_no);
2344 phba->hba_state = LPFC_HBA_ERROR;
2345 break;
2346 }
2347
2348 lpfc_linkdown(phba);
2349 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2350 phba->cfg_link_speed);
2351 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2352 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2353 (MBX_NOWAIT | MBX_STOP_IOCB));
2354 if (rc == MBX_NOT_FINISHED)
2355 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2356
2357 break;
2358
2359 case LPFC_DISC_AUTH:
2360 /* Node Authentication timeout */
2361 lpfc_printf_log(phba,
2362 KERN_ERR,
2363 LOG_DISCOVERY,
2364 "%d:0227 Node Authentication timeout\n",
2365 phba->brd_no);
2366 lpfc_disc_flush_list(phba);
2367 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2368 if (!clearlambox) {
2369 clrlaerr = 1;
2370 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2371 "%d:0207 Device Discovery "
2372 "completion error\n",
2373 phba->brd_no);
2374 phba->hba_state = LPFC_HBA_ERROR;
2375 break;
2376 }
2377 phba->hba_state = LPFC_CLEAR_LA;
2378 lpfc_clear_la(phba, clearlambox);
2379 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2380 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2381 (MBX_NOWAIT | MBX_STOP_IOCB));
2382 if (rc == MBX_NOT_FINISHED) {
2383 mempool_free(clearlambox, phba->mbox_mem_pool);
2384 clrlaerr = 1;
2385 }
2386 break;
2387
2388 case LPFC_CLEAR_LA:
2389 /* CLEAR LA timeout */
2390 lpfc_printf_log(phba,
2391 KERN_ERR,
2392 LOG_DISCOVERY,
2393 "%d:0228 CLEAR LA timeout\n",
2394 phba->brd_no);
2395 clrlaerr = 1;
2396 break;
2397
2398 case LPFC_HBA_READY:
2399 if (phba->fc_flag & FC_RSCN_MODE) {
2400 lpfc_printf_log(phba,
2401 KERN_ERR,
2402 LOG_DISCOVERY,
2403 "%d:0231 RSCN timeout Data: x%x x%x\n",
2404 phba->brd_no,
2405 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2406
2407 /* Cleanup any outstanding ELS commands */
2408 lpfc_els_flush_cmd(phba);
2409
2410 lpfc_els_flush_rscn(phba);
2411 lpfc_disc_flush_list(phba);
2412 }
2413 break;
2414 }
2415
2416 if (clrlaerr) {
2417 lpfc_disc_flush_list(phba);
2418 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2419 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2420 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2421 phba->hba_state = LPFC_HBA_READY;
2422 }
2423
2424 return;
2425 }
2426
2427 static void
2428 lpfc_nodev_timeout(unsigned long ptr)
2429 {
2430 struct lpfc_hba *phba;
2431 struct lpfc_nodelist *ndlp;
2432 unsigned long iflag;
2433 struct lpfc_work_evt *evtp;
2434
2435 ndlp = (struct lpfc_nodelist *)ptr;
2436 phba = ndlp->nlp_phba;
2437 evtp = &ndlp->nodev_timeout_evt;
2438 spin_lock_irqsave(phba->host->host_lock, iflag);
2439
2440 if (!list_empty(&evtp->evt_listp)) {
2441 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2442 return;
2443 }
2444 evtp->evt_arg1 = ndlp;
2445 evtp->evt = LPFC_EVT_NODEV_TMO;
2446 list_add_tail(&evtp->evt_listp, &phba->work_list);
2447 if (phba->work_wait)
2448 wake_up(phba->work_wait);
2449
2450 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2451 return;
2452 }
2453
2454
2455 /*
2456 * This routine handles processing a NameServer REG_LOGIN mailbox
2457 * command upon completion. It is setup in the LPFC_MBOXQ
2458 * as the completion routine when the command is
2459 * handed off to the SLI layer.
2460 */
2461 void
2462 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2463 {
2464 struct lpfc_sli *psli;
2465 MAILBOX_t *mb;
2466 struct lpfc_dmabuf *mp;
2467 struct lpfc_nodelist *ndlp;
2468
2469 psli = &phba->sli;
2470 mb = &pmb->mb;
2471
2472 ndlp = (struct lpfc_nodelist *) pmb->context2;
2473 mp = (struct lpfc_dmabuf *) (pmb->context1);
2474
2475 pmb->context1 = NULL;
2476
2477 ndlp->nlp_rpi = mb->un.varWords[0];
2478 ndlp->nlp_type |= NLP_FABRIC;
2479 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2480 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2481
2482 /* Start issuing Fabric-Device Management Interface (FDMI)
2483 * command to 0xfffffa (FDMI well known port)
2484 */
2485 if (phba->cfg_fdmi_on == 1) {
2486 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2487 } else {
2488 /*
2489 * Delay issuing FDMI command if fdmi-on=2
2490 * (supporting RPA/hostnmae)
2491 */
2492 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2493 }
2494
2495 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2496 kfree(mp);
2497 mempool_free( pmb, phba->mbox_mem_pool);
2498
2499 return;
2500 }
2501
2502 /*
2503 * This routine looks up the ndlp lists
2504 * for the given RPI. If rpi found
2505 * it return the node list pointer
2506 * else return NULL.
2507 */
2508 struct lpfc_nodelist *
2509 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2510 {
2511 struct lpfc_nodelist *ndlp;
2512 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2513 &phba->fc_nlpmap_list,
2514 &phba->fc_plogi_list,
2515 &phba->fc_adisc_list,
2516 &phba->fc_reglogin_list};
2517 int i;
2518
2519 spin_lock_irq(phba->host->host_lock);
2520 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2521 list_for_each_entry(ndlp, lists[i], nlp_listp)
2522 if (ndlp->nlp_rpi == rpi) {
2523 spin_unlock_irq(phba->host->host_lock);
2524 return ndlp;
2525 }
2526 spin_unlock_irq(phba->host->host_lock);
2527 return NULL;
2528 }
2529
2530 /*
2531 * This routine looks up the ndlp lists
2532 * for the given WWPN. If WWPN found
2533 * it return the node list pointer
2534 * else return NULL.
2535 */
2536 struct lpfc_nodelist *
2537 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2538 struct lpfc_name * wwpn)
2539 {
2540 struct lpfc_nodelist *ndlp;
2541 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2542 &phba->fc_nlpmap_list,
2543 &phba->fc_npr_list,
2544 &phba->fc_plogi_list,
2545 &phba->fc_adisc_list,
2546 &phba->fc_reglogin_list,
2547 &phba->fc_prli_list};
2548 uint32_t search[]={NLP_SEARCH_UNMAPPED,
2549 NLP_SEARCH_MAPPED,
2550 NLP_SEARCH_NPR,
2551 NLP_SEARCH_PLOGI,
2552 NLP_SEARCH_ADISC,
2553 NLP_SEARCH_REGLOGIN,
2554 NLP_SEARCH_PRLI};
2555 int i;
2556
2557 spin_lock_irq(phba->host->host_lock);
2558 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2559 if (!(order & search[i]))
2560 continue;
2561 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2562 if (memcmp(&ndlp->nlp_portname, wwpn,
2563 sizeof(struct lpfc_name)) == 0) {
2564 spin_unlock_irq(phba->host->host_lock);
2565 return ndlp;
2566 }
2567 }
2568 }
2569 spin_unlock_irq(phba->host->host_lock);
2570 return NULL;
2571 }
2572
2573 void
2574 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2575 uint32_t did)
2576 {
2577 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2578 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2579 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2580 init_timer(&ndlp->nlp_tmofunc);
2581 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2582 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2583 init_timer(&ndlp->nlp_delayfunc);
2584 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2585 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2586 ndlp->nlp_DID = did;
2587 ndlp->nlp_phba = phba;
2588 ndlp->nlp_sid = NLP_NO_SID;
2589 return;
2590 }
kernel source for telekom puls (alcatel/mediatek)