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[SCSI] lpfc: Restore HEX safe bahavior of the sysfs xxx_store functions.
[linux-2.6-block.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
893 if (ndlp->nlp_rpi != 0)
894 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
895 ndlp->nlp_rpi = mb->un.varWords[0];
896 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
897 ndlp->nlp_type |= NLP_FABRIC;
898 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
899 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
900
901 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
902 /* This NPort has been assigned an NPort_ID by the fabric as a
903 * result of the completed fabric login. Issue a State Change
904 * Registration (SCR) ELS request to the fabric controller
905 * (SCR_DID) so that this NPort gets RSCN events from the
906 * fabric.
907 */
908 lpfc_issue_els_scr(phba, SCR_DID, 0);
909
910 /* Allocate a new node instance. If the pool is empty, just
911 * start the discovery process and skip the Nameserver login
912 * process. This is attempted again later on. Otherwise, issue
913 * a Port Login (PLOGI) to the NameServer
914 */
915 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
916 == 0) {
917 lpfc_disc_start(phba);
918 } else {
919 lpfc_nlp_init(phba, ndlp, NameServer_DID);
920 ndlp->nlp_type |= NLP_FABRIC;
921 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
922 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
923 lpfc_issue_els_plogi(phba, ndlp, 0);
924 if (phba->cfg_fdmi_on) {
925 if ((ndlp_fdmi = mempool_alloc(
926 phba->nlp_mem_pool,
927 GFP_KERNEL))) {
928 lpfc_nlp_init(phba, ndlp_fdmi,
929 FDMI_DID);
930 ndlp_fdmi->nlp_type |= NLP_FABRIC;
931 ndlp_fdmi->nlp_state =
932 NLP_STE_PLOGI_ISSUE;
933 lpfc_issue_els_plogi(phba, ndlp_fdmi,
934 0);
935 }
936 }
937 }
938 }
939
940 lpfc_mbuf_free(phba, mp->virt, mp->phys);
941 kfree(mp);
942 mempool_free( pmb, phba->mbox_mem_pool);
943
944 return;
945}
946
947/*
948 * This routine handles processing a NameServer REG_LOGIN mailbox
949 * command upon completion. It is setup in the LPFC_MBOXQ
950 * as the completion routine when the command is
951 * handed off to the SLI layer.
952 */
953void
954lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
955{
956 struct lpfc_sli *psli;
957 MAILBOX_t *mb;
958 struct lpfc_dmabuf *mp;
959 struct lpfc_nodelist *ndlp;
960
961 psli = &phba->sli;
962 mb = &pmb->mb;
963
964 ndlp = (struct lpfc_nodelist *) pmb->context2;
965 mp = (struct lpfc_dmabuf *) (pmb->context1);
966
967 if (mb->mbxStatus) {
968 lpfc_mbuf_free(phba, mp->virt, mp->phys);
969 kfree(mp);
970 mempool_free( pmb, phba->mbox_mem_pool);
971 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
972
973 /* RegLogin failed, so just use loop map to make discovery
974 list */
975 lpfc_disc_list_loopmap(phba);
976
977 /* Start discovery */
978 lpfc_disc_start(phba);
979 return;
980 }
981
982 pmb->context1 = NULL;
983
984 if (ndlp->nlp_rpi != 0)
985 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
986 ndlp->nlp_rpi = mb->un.varWords[0];
987 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
988 ndlp->nlp_type |= NLP_FABRIC;
989 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
990 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
991
992 if (phba->hba_state < LPFC_HBA_READY) {
993 /* Link up discovery requires Fabrib registration. */
994 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
995 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
996 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
997 }
998
999 phba->fc_ns_retry = 0;
1000 /* Good status, issue CT Request to NameServer */
1001 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1002 /* Cannot issue NameServer Query, so finish up discovery */
1003 lpfc_disc_start(phba);
1004 }
1005
1006 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1007 kfree(mp);
1008 mempool_free( pmb, phba->mbox_mem_pool);
1009
1010 return;
1011}
1012
1013static void
1014lpfc_register_remote_port(struct lpfc_hba * phba,
1015 struct lpfc_nodelist * ndlp)
1016{
1017 struct fc_rport *rport;
1018 struct lpfc_rport_data *rdata;
1019 struct fc_rport_identifiers rport_ids;
dea3101e 1020
1021 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1022 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1023 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1024 rport_ids.port_id = ndlp->nlp_DID;
1025 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1026 if (ndlp->nlp_type & NLP_FCP_TARGET)
1027 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1028 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1029 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1030
19a7b4ae 1031 scsi_block_requests(phba->host);
dea3101e 1032 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1033 if (!rport) {
1034 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1035 "Warning: fc_remote_port_add failed\n");
1036 return;
1037 }
1038
1039 /* initialize static port data */
1040 rport->maxframe_size = ndlp->nlp_maxframe;
1041 rport->supported_classes = ndlp->nlp_class_sup;
1042 if ((rport->scsi_target_id != -1) &&
1043 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1044 ndlp->nlp_sid = rport->scsi_target_id;
1045 }
1046 rdata = rport->dd_data;
1047 rdata->pnode = ndlp;
19a7b4ae
JSEC		 1048 scsi_unblock_requests(phba->host);
1049
1050 return;
1051}
1052
1053static void
1054lpfc_unregister_remote_port(struct lpfc_hba * phba,
1055 struct lpfc_nodelist * ndlp)
1056{
1057 struct fc_rport *rport = ndlp->rport;
1058 struct lpfc_rport_data *rdata = rport->dd_data;
1059
1060 ndlp->rport = NULL;
1061 rdata->pnode = NULL;
1062 scsi_block_requests(phba->host);
1063 fc_remote_port_delete(rport);
1064 scsi_unblock_requests(phba->host);
dea3101e 1065
1066 return;
1067}
1068
1069int
1070lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1071{
1072 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1073 struct lpfc_sli *psli;
1074
1075 psli = &phba->sli;
1076 /* Sanity check to ensure we are not moving to / from the same list */
1077 if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1078 if (list != NLP_NO_LIST)
1079 return(0);
1080 }
1081
1082 switch(nlp->nlp_flag & NLP_LIST_MASK) {
1083 case NLP_NO_LIST: /* Not on any list */
1084 break;
1085 case NLP_UNUSED_LIST:
1086 phba->fc_unused_cnt--;
1087 list_del(&nlp->nlp_listp);
1088 break;
1089 case NLP_PLOGI_LIST:
1090 phba->fc_plogi_cnt--;
1091 list_del(&nlp->nlp_listp);
1092 break;
1093 case NLP_ADISC_LIST:
1094 phba->fc_adisc_cnt--;
1095 list_del(&nlp->nlp_listp);
1096 break;
1097 case NLP_REGLOGIN_LIST:
1098 phba->fc_reglogin_cnt--;
1099 list_del(&nlp->nlp_listp);
1100 break;
1101 case NLP_PRLI_LIST:
1102 phba->fc_prli_cnt--;
1103 list_del(&nlp->nlp_listp);
1104 break;
1105 case NLP_UNMAPPED_LIST:
1106 phba->fc_unmap_cnt--;
1107 list_del(&nlp->nlp_listp);
1108 spin_lock_irq(phba->host->host_lock);
1109 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1110 nlp->nlp_type &= ~NLP_FC_NODE;
1111 spin_unlock_irq(phba->host->host_lock);
1112 phba->nport_event_cnt++;
1113 if (nlp->rport)
1114 rport_del = unmapped;
1115 break;
1116 case NLP_MAPPED_LIST:
1117 phba->fc_map_cnt--;
1118 list_del(&nlp->nlp_listp);
1119 phba->nport_event_cnt++;
1120 if (nlp->rport)
1121 rport_del = mapped;
1122 break;
1123 case NLP_NPR_LIST:
1124 phba->fc_npr_cnt--;
1125 list_del(&nlp->nlp_listp);
1126 /* Stop delay tmo if taking node off NPR list */
1127 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1128 (list != NLP_NPR_LIST)) {
1129 spin_lock_irq(phba->host->host_lock);
1130 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1131 spin_unlock_irq(phba->host->host_lock);
1132 del_timer_sync(&nlp->nlp_delayfunc);
1133 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1134 list_del_init(&nlp->els_retry_evt.evt_listp);
1135 }
1136 break;
1137 }
1138
1139 spin_lock_irq(phba->host->host_lock);
1140 nlp->nlp_flag &= ~NLP_LIST_MASK;
1141 spin_unlock_irq(phba->host->host_lock);
1142
1143 /* Add NPort <did> to <num> list */
1144 lpfc_printf_log(phba,
1145 KERN_INFO,
1146 LOG_NODE,
1147 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1148 phba->brd_no,
1149 nlp->nlp_DID, list, nlp->nlp_flag);
1150
1151 switch(list) {
1152 case NLP_NO_LIST: /* No list, just remove it */
1153 lpfc_nlp_remove(phba, nlp);
8cbdc5ff
JSEC		 1154 /* as node removed - stop further transport calls */
1155 rport_del = none;
dea3101e 1156 break;
1157 case NLP_UNUSED_LIST:
1158 spin_lock_irq(phba->host->host_lock);
1159 nlp->nlp_flag |= list;
1160 spin_unlock_irq(phba->host->host_lock);
1161 /* Put it at the end of the unused list */
1162 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1163 phba->fc_unused_cnt++;
1164 break;
1165 case NLP_PLOGI_LIST:
1166 spin_lock_irq(phba->host->host_lock);
1167 nlp->nlp_flag |= list;
1168 spin_unlock_irq(phba->host->host_lock);
1169 /* Put it at the end of the plogi list */
1170 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1171 phba->fc_plogi_cnt++;
1172 break;
1173 case NLP_ADISC_LIST:
1174 spin_lock_irq(phba->host->host_lock);
1175 nlp->nlp_flag |= list;
1176 spin_unlock_irq(phba->host->host_lock);
1177 /* Put it at the end of the adisc list */
1178 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1179 phba->fc_adisc_cnt++;
1180 break;
1181 case NLP_REGLOGIN_LIST:
1182 spin_lock_irq(phba->host->host_lock);
1183 nlp->nlp_flag |= list;
1184 spin_unlock_irq(phba->host->host_lock);
1185 /* Put it at the end of the reglogin list */
1186 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1187 phba->fc_reglogin_cnt++;
1188 break;
1189 case NLP_PRLI_LIST:
1190 spin_lock_irq(phba->host->host_lock);
1191 nlp->nlp_flag |= list;
1192 spin_unlock_irq(phba->host->host_lock);
1193 /* Put it at the end of the prli list */
1194 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1195 phba->fc_prli_cnt++;
1196 break;
1197 case NLP_UNMAPPED_LIST:
1198 rport_add = unmapped;
1199 /* ensure all vestiges of "mapped" significance are gone */
1200 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1201 spin_lock_irq(phba->host->host_lock);
1202 nlp->nlp_flag |= list;
1203 spin_unlock_irq(phba->host->host_lock);
1204 /* Put it at the end of the unmap list */
1205 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1206 phba->fc_unmap_cnt++;
1207 phba->nport_event_cnt++;
1208 /* stop nodev tmo if running */
1209 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1210 spin_lock_irq(phba->host->host_lock);
1211 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1212 spin_unlock_irq(phba->host->host_lock);
1213 del_timer_sync(&nlp->nlp_tmofunc);
1214 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1215 list_del_init(&nlp->nodev_timeout_evt.
1216 evt_listp);
1217
1218 }
1219 nlp->nlp_type |= NLP_FC_NODE;
1220 break;
1221 case NLP_MAPPED_LIST:
1222 rport_add = mapped;
1223 spin_lock_irq(phba->host->host_lock);
1224 nlp->nlp_flag |= list;
1225 spin_unlock_irq(phba->host->host_lock);
1226 /* Put it at the end of the map list */
1227 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1228 phba->fc_map_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 del_timer_sync(&nlp->nlp_tmofunc);
1234 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1235 list_del_init(&nlp->nodev_timeout_evt.
1236 evt_listp);
1237
1238 }
1239 break;
1240 case NLP_NPR_LIST:
1241 spin_lock_irq(phba->host->host_lock);
1242 nlp->nlp_flag |= list;
1243 spin_unlock_irq(phba->host->host_lock);
1244 /* Put it at the end of the npr list */
1245 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1246 phba->fc_npr_cnt++;
1247
1248 /*
1249 * Sanity check for Fabric entity.
1250 * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1251 */
1252 if (nlp->nlp_type & NLP_FABRIC) {
1253 mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1254 }
1255 else {
1256 mod_timer(&nlp->nlp_tmofunc,
1257 jiffies + HZ * phba->cfg_nodev_tmo);
1258 }
1259 spin_lock_irq(phba->host->host_lock);
1260 nlp->nlp_flag |= NLP_NODEV_TMO;
1261 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1262 spin_unlock_irq(phba->host->host_lock);
1263 break;
1264 case NLP_JUST_DQ:
1265 break;
1266 }
1267
1268 /*
1269 * We make all the calls into the transport after we have
1270 * moved the node between lists. This so that we don't
1271 * release the lock while in-between lists.
1272 */
1273
1274 /* Don't upcall midlayer if we're unloading */
1275 if (!(phba->fc_flag & FC_UNLOADING)) {
1276 /*
1277 * We revalidate the rport pointer as the "add" function
1278 * may have removed the remote port.
1279 */
1280 if ((rport_del != none) && nlp->rport)
19a7b4ae 1281 lpfc_unregister_remote_port(phba, nlp);
dea3101e 1282
1283 if (rport_add != none) {
1284 /*
1285 * Tell the fc transport about the port, if we haven't
1286 * already. If we have, and it's a scsi entity, be
1287 * sure to unblock any attached scsi devices
1288 */
1289 if (!nlp->rport)
1290 lpfc_register_remote_port(phba, nlp);
dea3101e 1291
1292 /*
1293 * if we added to Mapped list, but the remote port
1294 * registration failed or assigned a target id outside
1295 * our presentable range - move the node to the
1296 * Unmapped List
1297 */
1298 if ((rport_add == mapped) &&
1299 ((!nlp->rport) ||
1300 (nlp->rport->scsi_target_id == -1) ||
1301 (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1302 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1303 spin_lock_irq(phba->host->host_lock);
1304 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1305 spin_unlock_irq(phba->host->host_lock);
1306 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1307 }
1308 }
1309 }
1310 return (0);
1311}
1312
1313/*
1314 * Start / ReStart rescue timer for Discovery / RSCN handling
1315 */
1316void
1317lpfc_set_disctmo(struct lpfc_hba * phba)
1318{
1319 uint32_t tmo;
1320
1321 tmo = ((phba->fc_ratov * 2) + 1);
1322
1323 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1324 spin_lock_irq(phba->host->host_lock);
1325 phba->fc_flag |= FC_DISC_TMO;
1326 spin_unlock_irq(phba->host->host_lock);
1327
1328 /* Start Discovery Timer state <hba_state> */
1329 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1330 "%d:0247 Start Discovery Timer state x%x "
1331 "Data: x%x x%lx x%x x%x\n",
1332 phba->brd_no,
1333 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1334 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1335
1336 return;
1337}
1338
1339/*
1340 * Cancel rescue timer for Discovery / RSCN handling
1341 */
1342int
1343lpfc_can_disctmo(struct lpfc_hba * phba)
1344{
1345 /* Turn off discovery timer if its running */
1346 if (phba->fc_flag & FC_DISC_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 del_timer_sync(&phba->fc_disctmo);
1351 phba->work_hba_events &= ~WORKER_DISC_TMO;
1352 }
1353
1354 /* Cancel Discovery Timer state <hba_state> */
1355 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1356 "%d:0248 Cancel Discovery Timer state x%x "
1357 "Data: x%x x%x x%x\n",
1358 phba->brd_no, phba->hba_state, phba->fc_flag,
1359 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1360
1361 return (0);
1362}
1363
1364/*
1365 * Check specified ring for outstanding IOCB on the SLI queue
1366 * Return true if iocb matches the specified nport
1367 */
1368int
1369lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1370 struct lpfc_sli_ring * pring,
1371 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1372{
1373 struct lpfc_sli *psli;
1374 IOCB_t *icmd;
1375
1376 psli = &phba->sli;
1377 icmd = &iocb->iocb;
1378 if (pring->ringno == LPFC_ELS_RING) {
1379 switch (icmd->ulpCommand) {
1380 case CMD_GEN_REQUEST64_CR:
1381 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1382 return (1);
1383 case CMD_ELS_REQUEST64_CR:
1384 case CMD_XMIT_ELS_RSP64_CX:
1385 if (iocb->context1 == (uint8_t *) ndlp)
1386 return (1);
1387 }
1388 } else if (pring->ringno == psli->ip_ring) {
1389
1390 } else if (pring->ringno == psli->fcp_ring) {
1391 /* Skip match check if waiting to relogin to FCP target */
1392 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1393 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1394 return (0);
1395 }
1396 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1397 return (1);
1398 }
1399 } else if (pring->ringno == psli->next_ring) {
1400
1401 }
1402 return (0);
1403}
1404
1405/*
1406 * Free resources / clean up outstanding I/Os
1407 * associated with nlp_rpi in the LPFC_NODELIST entry.
1408 */
1409static int
1410lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1411{
1412 struct lpfc_sli *psli;
1413 struct lpfc_sli_ring *pring;
1414 struct lpfc_iocbq *iocb, *next_iocb;
1415 IOCB_t *icmd;
1416 uint32_t rpi, i;
1417
1418 /*
1419 * Everything that matches on txcmplq will be returned
1420 * by firmware with a no rpi error.
1421 */
1422 psli = &phba->sli;
1423 rpi = ndlp->nlp_rpi;
1424 if (rpi) {
1425 /* Now process each ring */
1426 for (i = 0; i < psli->num_rings; i++) {
1427 pring = &psli->ring[i];
1428
1429 spin_lock_irq(phba->host->host_lock);
1430 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1431 list) {
1432 /*
1433 * Check to see if iocb matches the nport we are
1434 * looking for
1435 */
1436 if ((lpfc_check_sli_ndlp
1437 (phba, pring, iocb, ndlp))) {
1438 /* It matches, so deque and call compl
1439 with an error */
1440 list_del(&iocb->list);
1441 pring->txq_cnt--;
1442 if (iocb->iocb_cmpl) {
1443 icmd = &iocb->iocb;
1444 icmd->ulpStatus =
1445 IOSTAT_LOCAL_REJECT;
1446 icmd->un.ulpWord[4] =
1447 IOERR_SLI_ABORTED;
1448 spin_unlock_irq(phba->host->
1449 host_lock);
1450 (iocb->iocb_cmpl) (phba,
1451 iocb, iocb);
1452 spin_lock_irq(phba->host->
1453 host_lock);
1454 } else {
1455 list_add_tail(&iocb->list,
1456 &phba->lpfc_iocb_list);
1457 }
1458 }
1459 }
1460 spin_unlock_irq(phba->host->host_lock);
1461
1462 }
1463 }
1464 return (0);
1465}
1466
1467/*
1468 * Free rpi associated with LPFC_NODELIST entry.
1469 * This routine is called from lpfc_freenode(), when we are removing
1470 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1471 * LOGO that completes successfully, and we are waiting to PLOGI back
1472 * to the remote NPort. In addition, it is called after we receive
1473 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1474 * we are waiting to PLOGI back to the remote NPort.
1475 */
1476int
1477lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1478{
1479 LPFC_MBOXQ_t *mbox;
1480 int rc;
1481
1482 if (ndlp->nlp_rpi) {
1483 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1484 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1485 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1486 rc = lpfc_sli_issue_mbox
1487 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1488 if (rc == MBX_NOT_FINISHED)
1489 mempool_free( mbox, phba->mbox_mem_pool);
1490 }
1491 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1492 lpfc_no_rpi(phba, ndlp);
1493 ndlp->nlp_rpi = 0;
1494 return 1;
1495 }
1496 return 0;
1497}
1498
1499/*
1500 * Free resources associated with LPFC_NODELIST entry
1501 * so it can be freed.
1502 */
1503static int
1504lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1505{
1506 LPFC_MBOXQ_t *mb;
1507 LPFC_MBOXQ_t *nextmb;
1508 struct lpfc_dmabuf *mp;
dea3101e 1509
1510 /* Cleanup node for NPort <nlp_DID> */
1511 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1512 "%d:0900 Cleanup node for NPort x%x "
1513 "Data: x%x x%x x%x\n",
1514 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1515 ndlp->nlp_state, ndlp->nlp_rpi);
1516
1517 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1518
1519 /*
1520 * if unloading the driver - just leave the remote port in place.
1521 * The driver unload will force the attached devices to detach
1522 * and flush cache's w/o generating flush errors.
1523 */
1524 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
19a7b4ae 1525 lpfc_unregister_remote_port(phba, ndlp);
dea3101e 1526 ndlp->nlp_sid = NLP_NO_SID;
1527 }
1528
1529 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1530 if ((mb = phba->sli.mbox_active)) {
1531 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1532 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1533 mb->context2 = NULL;
1534 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1535 }
1536 }
1537 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1538 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1539 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1540 mp = (struct lpfc_dmabuf *) (mb->context1);
1541 if (mp) {
1542 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1543 kfree(mp);
1544 }
1545 list_del(&mb->list);
1546 mempool_free(mb, phba->mbox_mem_pool);
1547 }
1548 }
1549
1550 lpfc_els_abort(phba,ndlp,0);
1551 spin_lock_irq(phba->host->host_lock);
1552 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1553 spin_unlock_irq(phba->host->host_lock);
1554 del_timer_sync(&ndlp->nlp_tmofunc);
1555
1556 del_timer_sync(&ndlp->nlp_delayfunc);
1557
1558 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1559 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1560 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1561 list_del_init(&ndlp->els_retry_evt.evt_listp);
1562
1563 lpfc_unreg_rpi(phba, ndlp);
1564
1565 return (0);
1566}
1567
1568/*
1569 * Check to see if we can free the nlp back to the freelist.
1570 * If we are in the middle of using the nlp in the discovery state
1571 * machine, defer the free till we reach the end of the state machine.
1572 */
1573int
1574lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1575{
1576 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1577 spin_lock_irq(phba->host->host_lock);
1578 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1579 spin_unlock_irq(phba->host->host_lock);
1580 del_timer_sync(&ndlp->nlp_tmofunc);
1581 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1582 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1583
1584 }
1585
1586
1587 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1588 spin_lock_irq(phba->host->host_lock);
1589 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1590 spin_unlock_irq(phba->host->host_lock);
1591 del_timer_sync(&ndlp->nlp_delayfunc);
1592 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1593 list_del_init(&ndlp->els_retry_evt.evt_listp);
1594 }
1595
1596 if (ndlp->nlp_disc_refcnt) {
1597 spin_lock_irq(phba->host->host_lock);
1598 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1599 spin_unlock_irq(phba->host->host_lock);
1600 }
1601 else {
1602 lpfc_freenode(phba, ndlp);
1603 mempool_free( ndlp, phba->nlp_mem_pool);
1604 }
1605 return(0);
1606}
1607
1608static int
1609lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1610{
1611 D_ID mydid;
1612 D_ID ndlpdid;
1613 D_ID matchdid;
1614
1615 if (did == Bcast_DID)
1616 return (0);
1617
1618 if (ndlp->nlp_DID == 0) {
1619 return (0);
1620 }
1621
1622 /* First check for Direct match */
1623 if (ndlp->nlp_DID == did)
1624 return (1);
1625
1626 /* Next check for area/domain identically equals 0 match */
1627 mydid.un.word = phba->fc_myDID;
1628 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1629 return (0);
1630 }
1631
1632 matchdid.un.word = did;
1633 ndlpdid.un.word = ndlp->nlp_DID;
1634 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1635 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1636 (mydid.un.b.area == matchdid.un.b.area)) {
1637 if ((ndlpdid.un.b.domain == 0) &&
1638 (ndlpdid.un.b.area == 0)) {
1639 if (ndlpdid.un.b.id)
1640 return (1);
1641 }
1642 return (0);
1643 }
1644
1645 matchdid.un.word = ndlp->nlp_DID;
1646 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1647 (mydid.un.b.area == ndlpdid.un.b.area)) {
1648 if ((matchdid.un.b.domain == 0) &&
1649 (matchdid.un.b.area == 0)) {
1650 if (matchdid.un.b.id)
1651 return (1);
1652 }
1653 }
1654 }
1655 return (0);
1656}
1657
1658/* Search for a nodelist entry on a specific list */
1659struct lpfc_nodelist *
1660lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1661{
1662 struct lpfc_nodelist *ndlp, *next_ndlp;
1663 uint32_t data1;
1664
1665 if (order & NLP_SEARCH_UNMAPPED) {
1666 list_for_each_entry_safe(ndlp, next_ndlp,
1667 &phba->fc_nlpunmap_list, nlp_listp) {
1668 if (lpfc_matchdid(phba, ndlp, did)) {
1669 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1670 ((uint32_t) ndlp->nlp_xri << 16) |
1671 ((uint32_t) ndlp->nlp_type << 8) |
1672 ((uint32_t) ndlp->nlp_rpi & 0xff));
1673 /* FIND node DID unmapped */
1674 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1675 "%d:0929 FIND node DID unmapped"
1676 " Data: x%p x%x x%x x%x\n",
1677 phba->brd_no,
1678 ndlp, ndlp->nlp_DID,
1679 ndlp->nlp_flag, data1);
1680 return (ndlp);
1681 }
1682 }
1683 }
1684
1685 if (order & NLP_SEARCH_MAPPED) {
1686 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1687 nlp_listp) {
1688 if (lpfc_matchdid(phba, ndlp, did)) {
1689
1690 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1691 ((uint32_t) ndlp->nlp_xri << 16) |
1692 ((uint32_t) ndlp->nlp_type << 8) |
1693 ((uint32_t) ndlp->nlp_rpi & 0xff));
1694 /* FIND node DID mapped */
1695 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1696 "%d:0930 FIND node DID mapped "
1697 "Data: x%p x%x x%x x%x\n",
1698 phba->brd_no,
1699 ndlp, ndlp->nlp_DID,
1700 ndlp->nlp_flag, data1);
1701 return (ndlp);
1702 }
1703 }
1704 }
1705
1706 if (order & NLP_SEARCH_PLOGI) {
1707 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1708 nlp_listp) {
1709 if (lpfc_matchdid(phba, ndlp, did)) {
1710
1711 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1712 ((uint32_t) ndlp->nlp_xri << 16) |
1713 ((uint32_t) ndlp->nlp_type << 8) |
1714 ((uint32_t) ndlp->nlp_rpi & 0xff));
1715 /* LOG change to PLOGI */
1716 /* FIND node DID plogi */
1717 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1718 "%d:0908 FIND node DID plogi "
1719 "Data: x%p x%x x%x x%x\n",
1720 phba->brd_no,
1721 ndlp, ndlp->nlp_DID,
1722 ndlp->nlp_flag, data1);
1723 return (ndlp);
1724 }
1725 }
1726 }
1727
1728 if (order & NLP_SEARCH_ADISC) {
1729 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1730 nlp_listp) {
1731 if (lpfc_matchdid(phba, ndlp, did)) {
1732
1733 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1734 ((uint32_t) ndlp->nlp_xri << 16) |
1735 ((uint32_t) ndlp->nlp_type << 8) |
1736 ((uint32_t) ndlp->nlp_rpi & 0xff));
1737 /* LOG change to ADISC */
1738 /* FIND node DID adisc */
1739 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1740 "%d:0931 FIND node DID adisc "
1741 "Data: x%p x%x x%x x%x\n",
1742 phba->brd_no,
1743 ndlp, ndlp->nlp_DID,
1744 ndlp->nlp_flag, data1);
1745 return (ndlp);
1746 }
1747 }
1748 }
1749
1750 if (order & NLP_SEARCH_REGLOGIN) {
1751 list_for_each_entry_safe(ndlp, next_ndlp,
1752 &phba->fc_reglogin_list, nlp_listp) {
1753 if (lpfc_matchdid(phba, ndlp, did)) {
1754
1755 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1756 ((uint32_t) ndlp->nlp_xri << 16) |
1757 ((uint32_t) ndlp->nlp_type << 8) |
1758 ((uint32_t) ndlp->nlp_rpi & 0xff));
1759 /* LOG change to REGLOGIN */
1760 /* FIND node DID reglogin */
1761 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1762 "%d:0931 FIND node DID reglogin"
1763 " Data: x%p x%x x%x x%x\n",
1764 phba->brd_no,
1765 ndlp, ndlp->nlp_DID,
1766 ndlp->nlp_flag, data1);
1767 return (ndlp);
1768 }
1769 }
1770 }
1771
1772 if (order & NLP_SEARCH_PRLI) {
1773 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1774 nlp_listp) {
1775 if (lpfc_matchdid(phba, ndlp, did)) {
1776
1777 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1778 ((uint32_t) ndlp->nlp_xri << 16) |
1779 ((uint32_t) ndlp->nlp_type << 8) |
1780 ((uint32_t) ndlp->nlp_rpi & 0xff));
1781 /* LOG change to PRLI */
1782 /* FIND node DID prli */
1783 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1784 "%d:0931 FIND node DID prli "
1785 "Data: x%p x%x x%x x%x\n",
1786 phba->brd_no,
1787 ndlp, ndlp->nlp_DID,
1788 ndlp->nlp_flag, data1);
1789 return (ndlp);
1790 }
1791 }
1792 }
1793
1794 if (order & NLP_SEARCH_NPR) {
1795 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1796 nlp_listp) {
1797 if (lpfc_matchdid(phba, ndlp, did)) {
1798
1799 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1800 ((uint32_t) ndlp->nlp_xri << 16) |
1801 ((uint32_t) ndlp->nlp_type << 8) |
1802 ((uint32_t) ndlp->nlp_rpi & 0xff));
1803 /* LOG change to NPR */
1804 /* FIND node DID npr */
1805 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1806 "%d:0931 FIND node DID npr "
1807 "Data: x%p x%x x%x x%x\n",
1808 phba->brd_no,
1809 ndlp, ndlp->nlp_DID,
1810 ndlp->nlp_flag, data1);
1811 return (ndlp);
1812 }
1813 }
1814 }
1815
1816 if (order & NLP_SEARCH_UNUSED) {
1817 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1818 nlp_listp) {
1819 if (lpfc_matchdid(phba, ndlp, did)) {
1820
1821 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1822 ((uint32_t) ndlp->nlp_xri << 16) |
1823 ((uint32_t) ndlp->nlp_type << 8) |
1824 ((uint32_t) ndlp->nlp_rpi & 0xff));
1825 /* LOG change to UNUSED */
1826 /* FIND node DID unused */
1827 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1828 "%d:0931 FIND node DID unused "
1829 "Data: x%p x%x x%x x%x\n",
1830 phba->brd_no,
1831 ndlp, ndlp->nlp_DID,
1832 ndlp->nlp_flag, data1);
1833 return (ndlp);
1834 }
1835 }
1836 }
1837
1838 /* FIND node did <did> NOT FOUND */
1839 lpfc_printf_log(phba,
1840 KERN_INFO,
1841 LOG_NODE,
1842 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1843 phba->brd_no, did, order);
1844
1845 /* no match found */
1846 return NULL;
1847}
1848
1849struct lpfc_nodelist *
1850lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1851{
1852 struct lpfc_nodelist *ndlp;
1853 uint32_t flg;
1854
1855 if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1856 if ((phba->hba_state == LPFC_HBA_READY) &&
1857 ((lpfc_rscn_payload_check(phba, did) == 0)))
1858 return NULL;
1859 ndlp = (struct lpfc_nodelist *)
1860 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1861 if (!ndlp)
1862 return NULL;
1863 lpfc_nlp_init(phba, ndlp, did);
1864 ndlp->nlp_state = NLP_STE_NPR_NODE;
1865 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1866 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1867 return ndlp;
1868 }
1869 if ((phba->hba_state == LPFC_HBA_READY) &&
1870 (phba->fc_flag & FC_RSCN_MODE)) {
1871 if (lpfc_rscn_payload_check(phba, did)) {
1872 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1873 }
1874 else {
1875 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1876 ndlp = NULL;
1877 }
1878 }
1879 else {
1880 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1881 if ((flg == NLP_ADISC_LIST) ||
1882 (flg == NLP_PLOGI_LIST)) {
1883 return NULL;
1884 }
1885 ndlp->nlp_state = NLP_STE_NPR_NODE;
1886 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1887 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1888 }
1889 return ndlp;
1890}
1891
1892/* Build a list of nodes to discover based on the loopmap */
1893void
1894lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1895{
1896 int j;
1897 uint32_t alpa, index;
1898
1899 if (phba->hba_state <= LPFC_LINK_DOWN) {
1900 return;
1901 }
1902 if (phba->fc_topology != TOPOLOGY_LOOP) {
1903 return;
1904 }
1905
1906 /* Check for loop map present or not */
1907 if (phba->alpa_map[0]) {
1908 for (j = 1; j <= phba->alpa_map[0]; j++) {
1909 alpa = phba->alpa_map[j];
1910
1911 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1912 continue;
1913 }
1914 lpfc_setup_disc_node(phba, alpa);
1915 }
1916 } else {
1917 /* No alpamap, so try all alpa's */
1918 for (j = 0; j < FC_MAXLOOP; j++) {
1919 /* If cfg_scan_down is set, start from highest
1920 * ALPA (0xef) to lowest (0x1).
1921 */
1922 if (phba->cfg_scan_down)
1923 index = j;
1924 else
1925 index = FC_MAXLOOP - j - 1;
1926 alpa = lpfcAlpaArray[index];
1927 if ((phba->fc_myDID & 0xff) == alpa) {
1928 continue;
1929 }
1930
1931 lpfc_setup_disc_node(phba, alpa);
1932 }
1933 }
1934 return;
1935}
1936
1937/* Start Link up / RSCN discovery on NPR list */
1938void
1939lpfc_disc_start(struct lpfc_hba * phba)
1940{
1941 struct lpfc_sli *psli;
1942 LPFC_MBOXQ_t *mbox;
1943 struct lpfc_nodelist *ndlp, *next_ndlp;
1944 uint32_t did_changed, num_sent;
1945 uint32_t clear_la_pending;
1946 int rc;
1947
1948 psli = &phba->sli;
1949
1950 if (phba->hba_state <= LPFC_LINK_DOWN) {
1951 return;
1952 }
1953 if (phba->hba_state == LPFC_CLEAR_LA)
1954 clear_la_pending = 1;
1955 else
1956 clear_la_pending = 0;
1957
1958 if (phba->hba_state < LPFC_HBA_READY) {
1959 phba->hba_state = LPFC_DISC_AUTH;
1960 }
1961 lpfc_set_disctmo(phba);
1962
1963 if (phba->fc_prevDID == phba->fc_myDID) {
1964 did_changed = 0;
1965 } else {
1966 did_changed = 1;
1967 }
1968 phba->fc_prevDID = phba->fc_myDID;
1969 phba->num_disc_nodes = 0;
1970
1971 /* Start Discovery state <hba_state> */
1972 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1973 "%d:0202 Start Discovery hba state x%x "
1974 "Data: x%x x%x x%x\n",
1975 phba->brd_no, phba->hba_state, phba->fc_flag,
1976 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1977
1978 /* If our did changed, we MUST do PLOGI */
1979 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1980 nlp_listp) {
1981 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1982 if (did_changed) {
1983 spin_lock_irq(phba->host->host_lock);
1984 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1985 spin_unlock_irq(phba->host->host_lock);
1986 }
1987 }
1988 }
1989
1990 /* First do ADISCs - if any */
1991 num_sent = lpfc_els_disc_adisc(phba);
1992
1993 if (num_sent)
1994 return;
1995
1996 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1997 /* If we get here, there is nothing to ADISC */
1998 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1999 phba->hba_state = LPFC_CLEAR_LA;
2000 lpfc_clear_la(phba, mbox);
2001 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2002 rc = lpfc_sli_issue_mbox(phba, mbox,
2003 (MBX_NOWAIT | MBX_STOP_IOCB));
2004 if (rc == MBX_NOT_FINISHED) {
2005 mempool_free( mbox, phba->mbox_mem_pool);
2006 lpfc_disc_flush_list(phba);
2007 psli->ring[(psli->ip_ring)].flag &=
2008 ~LPFC_STOP_IOCB_EVENT;
2009 psli->ring[(psli->fcp_ring)].flag &=
2010 ~LPFC_STOP_IOCB_EVENT;
2011 psli->ring[(psli->next_ring)].flag &=
2012 ~LPFC_STOP_IOCB_EVENT;
2013 phba->hba_state = LPFC_HBA_READY;
2014 }
2015 }
2016 } else {
2017 /* Next do PLOGIs - if any */
2018 num_sent = lpfc_els_disc_plogi(phba);
2019
2020 if (num_sent)
2021 return;
2022
2023 if (phba->fc_flag & FC_RSCN_MODE) {
2024 /* Check to see if more RSCNs came in while we
2025 * were processing this one.
2026 */
2027 if ((phba->fc_rscn_id_cnt == 0) &&
2028 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2029 spin_lock_irq(phba->host->host_lock);
2030 phba->fc_flag &= ~FC_RSCN_MODE;
2031 spin_unlock_irq(phba->host->host_lock);
2032 }
2033 else
2034 lpfc_els_handle_rscn(phba);
2035 }
2036 }
2037 return;
2038}
2039
2040/*
2041 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2042 * ring the match the sppecified nodelist.
2043 */
2044static void
2045lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2046{
2047 struct lpfc_sli *psli;
2048 IOCB_t *icmd;
2049 struct lpfc_iocbq *iocb, *next_iocb;
2050 struct lpfc_sli_ring *pring;
2051 struct lpfc_dmabuf *mp;
2052
2053 psli = &phba->sli;
2054 pring = &psli->ring[LPFC_ELS_RING];
2055
2056 /* Error matching iocb on txq or txcmplq
2057 * First check the txq.
2058 */
2059 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2060 if (iocb->context1 != ndlp) {
2061 continue;
2062 }
2063 icmd = &iocb->iocb;
2064 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2065 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2066
2067 list_del(&iocb->list);
2068 pring->txq_cnt--;
2069 lpfc_els_free_iocb(phba, iocb);
2070 }
2071 }
2072
2073 /* Next check the txcmplq */
2074 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2075 if (iocb->context1 != ndlp) {
2076 continue;
2077 }
2078 icmd = &iocb->iocb;
2079 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2080 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2081
2082 iocb->iocb_cmpl = NULL;
2083 /* context2 = cmd, context2->next = rsp, context3 =
2084 bpl */
2085 if (iocb->context2) {
2086 /* Free the response IOCB before handling the
2087 command. */
2088
2089 mp = (struct lpfc_dmabuf *) (iocb->context2);
2090 mp = list_get_first(&mp->list,
2091 struct lpfc_dmabuf,
2092 list);
2093 if (mp) {
2094 /* Delay before releasing rsp buffer to
2095 * give UNREG mbox a chance to take
2096 * effect.
2097 */
2098 list_add(&mp->list,
2099 &phba->freebufList);
2100 }
2101 lpfc_mbuf_free(phba,
2102 ((struct lpfc_dmabuf *)
2103 iocb->context2)->virt,
2104 ((struct lpfc_dmabuf *)
2105 iocb->context2)->phys);
2106 kfree(iocb->context2);
2107 }
2108
2109 if (iocb->context3) {
2110 lpfc_mbuf_free(phba,
2111 ((struct lpfc_dmabuf *)
2112 iocb->context3)->virt,
2113 ((struct lpfc_dmabuf *)
2114 iocb->context3)->phys);
2115 kfree(iocb->context3);
2116 }
2117 }
2118 }
2119
2120 return;
2121}
2122
2123void
2124lpfc_disc_flush_list(struct lpfc_hba * phba)
2125{
2126 struct lpfc_nodelist *ndlp, *next_ndlp;
2127
2128 if (phba->fc_plogi_cnt) {
2129 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2130 nlp_listp) {
2131 lpfc_free_tx(phba, ndlp);
2132 lpfc_nlp_remove(phba, ndlp);
2133 }
2134 }
2135 if (phba->fc_adisc_cnt) {
2136 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2137 nlp_listp) {
2138 lpfc_free_tx(phba, ndlp);
2139 lpfc_nlp_remove(phba, ndlp);
2140 }
2141 }
2142 return;
2143}
2144
2145/*****************************************************************************/
2146/*
2147 * NAME: lpfc_disc_timeout
2148 *
2149 * FUNCTION: Fibre Channel driver discovery timeout routine.
2150 *
2151 * EXECUTION ENVIRONMENT: interrupt only
2152 *
2153 * CALLED FROM:
2154 * Timer function
2155 *
2156 * RETURNS:
2157 * none
2158 */
2159/*****************************************************************************/
2160void
2161lpfc_disc_timeout(unsigned long ptr)
2162{
2163 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2164 unsigned long flags = 0;
2165
2166 if (unlikely(!phba))
2167 return;
2168
2169 spin_lock_irqsave(phba->host->host_lock, flags);
2170 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2171 phba->work_hba_events |= WORKER_DISC_TMO;
2172 if (phba->work_wait)
2173 wake_up(phba->work_wait);
2174 }
2175 spin_unlock_irqrestore(phba->host->host_lock, flags);
2176 return;
2177}
2178
2179static void
2180lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2181{
2182 struct lpfc_sli *psli;
2183 struct lpfc_nodelist *ndlp;
2184 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2185 int rc, clrlaerr = 0;
2186
2187 if (unlikely(!phba))
2188 return;
2189
2190 if (!(phba->fc_flag & FC_DISC_TMO))
2191 return;
2192
2193 psli = &phba->sli;
2194
2195 spin_lock_irq(phba->host->host_lock);
2196 phba->fc_flag &= ~FC_DISC_TMO;
2197 spin_unlock_irq(phba->host->host_lock);
2198
2199 switch (phba->hba_state) {
2200
2201 case LPFC_LOCAL_CFG_LINK:
2202 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2203 /* FAN timeout */
2204 lpfc_printf_log(phba,
2205 KERN_WARNING,
2206 LOG_DISCOVERY,
2207 "%d:0221 FAN timeout\n",
2208 phba->brd_no);
2209
2210 /* Forget about FAN, Start discovery by sending a FLOGI
2211 * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2212 * cmpl
2213 */
2214 phba->hba_state = LPFC_FLOGI;
2215 lpfc_set_disctmo(phba);
2216 lpfc_initial_flogi(phba);
2217 break;
2218
2219 case LPFC_FLOGI:
2220 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2221 /* Initial FLOGI timeout */
2222 lpfc_printf_log(phba,
2223 KERN_ERR,
2224 LOG_DISCOVERY,
2225 "%d:0222 Initial FLOGI timeout\n",
2226 phba->brd_no);
2227
2228 /* Assume no Fabric and go on with discovery.
2229 * Check for outstanding ELS FLOGI to abort.
2230 */
2231
2232 /* FLOGI failed, so just use loop map to make discovery list */
2233 lpfc_disc_list_loopmap(phba);
2234
2235 /* Start discovery */
2236 lpfc_disc_start(phba);
2237 break;
2238
2239 case LPFC_FABRIC_CFG_LINK:
2240 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2241 NameServer login */
2242 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2243 "%d:0223 Timeout while waiting for NameServer "
2244 "login\n", phba->brd_no);
2245
2246 /* Next look for NameServer ndlp */
2247 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2248 if (ndlp)
2249 lpfc_nlp_remove(phba, ndlp);
2250 /* Start discovery */
2251 lpfc_disc_start(phba);
2252 break;
2253
2254 case LPFC_NS_QRY:
2255 /* Check for wait for NameServer Rsp timeout */
2256 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2257 "%d:0224 NameServer Query timeout "
2258 "Data: x%x x%x\n",
2259 phba->brd_no,
2260 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2261
2262 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2263 NameServer_DID);
2264 if (ndlp) {
2265 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2266 /* Try it one more time */
2267 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2268 if (rc == 0)
2269 break;
2270 }
2271 phba->fc_ns_retry = 0;
2272 }
2273
2274 /* Nothing to authenticate, so CLEAR_LA right now */
2275 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2276 if (!clearlambox) {
2277 clrlaerr = 1;
2278 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2279 "%d:0226 Device Discovery "
2280 "completion error\n",
2281 phba->brd_no);
2282 phba->hba_state = LPFC_HBA_ERROR;
2283 break;
2284 }
2285
2286 phba->hba_state = LPFC_CLEAR_LA;
2287 lpfc_clear_la(phba, clearlambox);
2288 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2289 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2290 (MBX_NOWAIT | MBX_STOP_IOCB));
2291 if (rc == MBX_NOT_FINISHED) {
2292 mempool_free(clearlambox, phba->mbox_mem_pool);
2293 clrlaerr = 1;
2294 break;
2295 }
2296
2297 /* Setup and issue mailbox INITIALIZE LINK command */
2298 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2299 if (!initlinkmbox) {
2300 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2301 "%d:0226 Device Discovery "
2302 "completion error\n",
2303 phba->brd_no);
2304 phba->hba_state = LPFC_HBA_ERROR;
2305 break;
2306 }
2307
2308 lpfc_linkdown(phba);
2309 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2310 phba->cfg_link_speed);
2311 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2312 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2313 (MBX_NOWAIT | MBX_STOP_IOCB));
2314 if (rc == MBX_NOT_FINISHED)
2315 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2316
2317 break;
2318
2319 case LPFC_DISC_AUTH:
2320 /* Node Authentication timeout */
2321 lpfc_printf_log(phba,
2322 KERN_ERR,
2323 LOG_DISCOVERY,
2324 "%d:0227 Node Authentication timeout\n",
2325 phba->brd_no);
2326 lpfc_disc_flush_list(phba);
2327 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2328 if (!clearlambox) {
2329 clrlaerr = 1;
2330 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2331 "%d:0226 Device Discovery "
2332 "completion error\n",
2333 phba->brd_no);
2334 phba->hba_state = LPFC_HBA_ERROR;
2335 break;
2336 }
2337 phba->hba_state = LPFC_CLEAR_LA;
2338 lpfc_clear_la(phba, clearlambox);
2339 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2340 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2341 (MBX_NOWAIT | MBX_STOP_IOCB));
2342 if (rc == MBX_NOT_FINISHED) {
2343 mempool_free(clearlambox, phba->mbox_mem_pool);
2344 clrlaerr = 1;
2345 }
2346 break;
2347
2348 case LPFC_CLEAR_LA:
2349 /* CLEAR LA timeout */
2350 lpfc_printf_log(phba,
2351 KERN_ERR,
2352 LOG_DISCOVERY,
2353 "%d:0228 CLEAR LA timeout\n",
2354 phba->brd_no);
2355 clrlaerr = 1;
2356 break;
2357
2358 case LPFC_HBA_READY:
2359 if (phba->fc_flag & FC_RSCN_MODE) {
2360 lpfc_printf_log(phba,
2361 KERN_ERR,
2362 LOG_DISCOVERY,
2363 "%d:0231 RSCN timeout Data: x%x x%x\n",
2364 phba->brd_no,
2365 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2366
2367 /* Cleanup any outstanding ELS commands */
2368 lpfc_els_flush_cmd(phba);
2369
2370 lpfc_els_flush_rscn(phba);
2371 lpfc_disc_flush_list(phba);
2372 }
2373 break;
2374 }
2375
2376 if (clrlaerr) {
2377 lpfc_disc_flush_list(phba);
2378 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2379 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2380 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2381 phba->hba_state = LPFC_HBA_READY;
2382 }
2383
2384 return;
2385}
2386
2387static void
2388lpfc_nodev_timeout(unsigned long ptr)
2389{
2390 struct lpfc_hba *phba;
2391 struct lpfc_nodelist *ndlp;
2392 unsigned long iflag;
2393 struct lpfc_work_evt *evtp;
2394
2395 ndlp = (struct lpfc_nodelist *)ptr;
2396 phba = ndlp->nlp_phba;
2397 evtp = &ndlp->nodev_timeout_evt;
2398 spin_lock_irqsave(phba->host->host_lock, iflag);
2399
2400 if (!list_empty(&evtp->evt_listp)) {
2401 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2402 return;
2403 }
2404 evtp->evt_arg1 = ndlp;
2405 evtp->evt = LPFC_EVT_NODEV_TMO;
2406 list_add_tail(&evtp->evt_listp, &phba->work_list);
2407 if (phba->work_wait)
2408 wake_up(phba->work_wait);
2409
2410 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2411 return;
2412}
2413
2414
2415/*
2416 * This routine handles processing a NameServer REG_LOGIN mailbox
2417 * command upon completion. It is setup in the LPFC_MBOXQ
2418 * as the completion routine when the command is
2419 * handed off to the SLI layer.
2420 */
2421void
2422lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2423{
2424 struct lpfc_sli *psli;
2425 MAILBOX_t *mb;
2426 struct lpfc_dmabuf *mp;
2427 struct lpfc_nodelist *ndlp;
2428
2429 psli = &phba->sli;
2430 mb = &pmb->mb;
2431
2432 ndlp = (struct lpfc_nodelist *) pmb->context2;
2433 mp = (struct lpfc_dmabuf *) (pmb->context1);
2434
2435 pmb->context1 = NULL;
2436
2437 if (ndlp->nlp_rpi != 0)
2438 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
2439 ndlp->nlp_rpi = mb->un.varWords[0];
2440 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
2441 ndlp->nlp_type |= NLP_FABRIC;
2442 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2443 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2444
2445 /* Start issuing Fabric-Device Management Interface (FDMI)
2446 * command to 0xfffffa (FDMI well known port)
2447 */
2448 if (phba->cfg_fdmi_on == 1) {
2449 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2450 } else {
2451 /*
2452 * Delay issuing FDMI command if fdmi-on=2
2453 * (supporting RPA/hostnmae)
2454 */
2455 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2456 }
2457
2458 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2459 kfree(mp);
2460 mempool_free( pmb, phba->mbox_mem_pool);
2461
2462 return;
2463}
2464
2465/*
2466 * This routine looks up the ndlp hash
2467 * table for the given RPI. If rpi found
2468 * it return the node list pointer
2469 * else return 0.
2470 */
2471struct lpfc_nodelist *
2472lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2473{
2474 struct lpfc_nodelist *ret;
2475
2476 ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2477 while ((ret != 0) && (ret->nlp_rpi != rpi)) {
2478 ret = ret->nlp_rpi_hash_next;
2479 }
2480 return ret;
2481}
2482
2483/*
2484 * This routine looks up the ndlp hash table for the
2485 * given RPI. If rpi found it return the node list
2486 * pointer else return 0 after deleting the entry
2487 * from hash table.
2488 */
2489struct lpfc_nodelist *
2490lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi)
2491{
2492 struct lpfc_nodelist *ret, *temp;;
2493
2494 ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2495 if (ret == 0)
2496 return NULL;
2497
2498 if (ret->nlp_rpi == rpi) {
2499 phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] =
2500 ret->nlp_rpi_hash_next;
2501 ret->nlp_rpi_hash_next = NULL;
2502 return ret;
2503 }
2504
2505 while ((ret->nlp_rpi_hash_next != 0) &&
2506 (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) {
2507 ret = ret->nlp_rpi_hash_next;
2508 }
2509
2510 if (ret->nlp_rpi_hash_next != 0) {
2511 temp = ret->nlp_rpi_hash_next;
2512 ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next;
2513 temp->nlp_rpi_hash_next = NULL;
2514 return temp;
2515 } else {
2516 return NULL;
2517 }
2518}
2519
2520/*
2521 * This routine adds the node list entry to the
2522 * ndlp hash table.
2523 */
2524void
2525lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2526 uint16_t rpi)
2527{
2528
2529 uint32_t index;
2530
2531 index = LPFC_RPI_HASH_FUNC(rpi);
2532 ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index];
2533 phba->fc_nlplookup[index] = ndlp;
2534 return;
2535}
2536
2537void
2538lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2539 uint32_t did)
2540{
2541 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2542 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2543 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2544 init_timer(&ndlp->nlp_tmofunc);
2545 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2546 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2547 init_timer(&ndlp->nlp_delayfunc);
2548 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2549 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2550 ndlp->nlp_DID = did;
2551 ndlp->nlp_phba = phba;
2552 ndlp->nlp_sid = NLP_NO_SID;
2553 return;
2554}
Linux 6.x block layer and io_uring tree(s)