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[SCSI] lpfc: Remove $Id$ keyword strings.
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Enterprise Fibre Channel Host Bus Adapters. *
4 * Refer to the README file included with this package for *
5 * driver version and adapter support. *
6 * Copyright (C) 2004 Emulex Corporation. *
7 * www.emulex.com *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of the GNU General Public License *
11 * as published by the Free Software Foundation; either version 2 *
12 * of the License, or (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details, a copy of which *
18 * can be found in the file COPYING included with this package. *
19 *******************************************************************/
20
dea3101e 21#include <linux/blkdev.h>
22#include <linux/pci.h>
23#include <linux/kthread.h>
24#include <linux/interrupt.h>
25
26#include <scsi/scsi_device.h>
27#include <scsi/scsi_host.h>
28#include <scsi/scsi_transport_fc.h>
29
30#include "lpfc_hw.h"
31#include "lpfc_disc.h"
32#include "lpfc_sli.h"
33#include "lpfc_scsi.h"
34#include "lpfc.h"
35#include "lpfc_logmsg.h"
36#include "lpfc_crtn.h"
37
38/* AlpaArray for assignment of scsid for scan-down and bind_method */
39static uint8_t lpfcAlpaArray[] = {
40 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
41 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
42 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
43 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
44 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
45 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
46 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
47 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
48 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
49 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
50 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
51 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
52 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
53};
54
55static void lpfc_disc_timeout_handler(struct lpfc_hba *);
56
57static void
58lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
59{
6e8215e4 60 int warn_on = 0;
dea3101e 61
62 spin_lock_irq(phba->host->host_lock);
63 if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
64 spin_unlock_irq(phba->host->host_lock);
65 return;
66 }
67
68 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
69
70 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 71 warn_on = 1;
dea3101e 72 /* flush the target */
73 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
74 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
75 }
76 spin_unlock_irq(phba->host->host_lock);
77
6e8215e4
JSEC		 78 if (warn_on) {
79 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
80 "%d:0203 Nodev timeout on NPort x%x "
81 "Data: x%x x%x x%x\n",
82 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
83 ndlp->nlp_state, ndlp->nlp_rpi);
84 } else {
85 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
86 "%d:0204 Nodev timeout on NPort x%x "
87 "Data: x%x x%x x%x\n",
88 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
89 ndlp->nlp_state, ndlp->nlp_rpi);
90 }
91
dea3101e 92 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
93 return;
94}
95
96static void
97lpfc_work_list_done(struct lpfc_hba * phba)
98{
99 struct lpfc_work_evt *evtp = NULL;
100 struct lpfc_nodelist *ndlp;
101 int free_evt;
102
103 spin_lock_irq(phba->host->host_lock);
104 while(!list_empty(&phba->work_list)) {
105 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
106 evt_listp);
107 spin_unlock_irq(phba->host->host_lock);
108 free_evt = 1;
109 switch(evtp->evt) {
110 case LPFC_EVT_NODEV_TMO:
111 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
112 lpfc_process_nodev_timeout(phba, ndlp);
113 free_evt = 0;
114 break;
115 case LPFC_EVT_ELS_RETRY:
116 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
117 lpfc_els_retry_delay_handler(ndlp);
118 free_evt = 0;
119 break;
120 case LPFC_EVT_ONLINE:
121 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
122 complete((struct completion *)(evtp->evt_arg2));
123 break;
124 case LPFC_EVT_OFFLINE:
125 *(int *)(evtp->evt_arg1) = lpfc_offline(phba);
126 complete((struct completion *)(evtp->evt_arg2));
127 break;
128 }
129 if (free_evt)
130 kfree(evtp);
131 spin_lock_irq(phba->host->host_lock);
132 }
133 spin_unlock_irq(phba->host->host_lock);
134
135}
136
137static void
138lpfc_work_done(struct lpfc_hba * phba)
139{
140 struct lpfc_sli_ring *pring;
141 int i;
142 uint32_t ha_copy;
143 uint32_t control;
144 uint32_t work_hba_events;
145
146 spin_lock_irq(phba->host->host_lock);
147 ha_copy = phba->work_ha;
148 phba->work_ha = 0;
149 work_hba_events=phba->work_hba_events;
150 spin_unlock_irq(phba->host->host_lock);
151
152 if(ha_copy & HA_ERATT)
153 lpfc_handle_eratt(phba);
154
155 if(ha_copy & HA_MBATT)
156 lpfc_sli_handle_mb_event(phba);
157
158 if(ha_copy & HA_LATT)
159 lpfc_handle_latt(phba);
160
161 if (work_hba_events & WORKER_DISC_TMO)
162 lpfc_disc_timeout_handler(phba);
163
164 if (work_hba_events & WORKER_ELS_TMO)
165 lpfc_els_timeout_handler(phba);
166
167 if (work_hba_events & WORKER_MBOX_TMO)
168 lpfc_mbox_timeout_handler(phba);
169
170 if (work_hba_events & WORKER_FDMI_TMO)
171 lpfc_fdmi_tmo_handler(phba);
172
173 spin_lock_irq(phba->host->host_lock);
174 phba->work_hba_events &= ~work_hba_events;
175 spin_unlock_irq(phba->host->host_lock);
176
177 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
178 pring = &phba->sli.ring[i];
179 if ((ha_copy & HA_RXATT)
180 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
181 if (pring->flag & LPFC_STOP_IOCB_MASK) {
182 pring->flag |= LPFC_DEFERRED_RING_EVENT;
183 } else {
184 lpfc_sli_handle_slow_ring_event(phba, pring,
185 (ha_copy &
186 HA_RXMASK));
187 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
188 }
189 /*
190 * Turn on Ring interrupts
191 */
192 spin_lock_irq(phba->host->host_lock);
193 control = readl(phba->HCregaddr);
194 control |= (HC_R0INT_ENA << i);
195 writel(control, phba->HCregaddr);
196 readl(phba->HCregaddr); /* flush */
197 spin_unlock_irq(phba->host->host_lock);
198 }
199 }
200
201 lpfc_work_list_done (phba);
202
203}
204
205static int
206check_work_wait_done(struct lpfc_hba *phba) {
207
208 spin_lock_irq(phba->host->host_lock);
209 if (phba->work_ha ||
210 phba->work_hba_events ||
211 (!list_empty(&phba->work_list)) ||
212 kthread_should_stop()) {
213 spin_unlock_irq(phba->host->host_lock);
214 return 1;
215 } else {
216 spin_unlock_irq(phba->host->host_lock);
217 return 0;
218 }
219}
220
221int
222lpfc_do_work(void *p)
223{
224 struct lpfc_hba *phba = p;
225 int rc;
226 DECLARE_WAIT_QUEUE_HEAD(work_waitq);
227
228 set_user_nice(current, -20);
229 phba->work_wait = &work_waitq;
230
231 while (1) {
232
233 rc = wait_event_interruptible(work_waitq,
234 check_work_wait_done(phba));
235 BUG_ON(rc);
236
237 if (kthread_should_stop())
238 break;
239
240 lpfc_work_done(phba);
241
242 }
243 phba->work_wait = NULL;
244 return 0;
245}
246
247/*
248 * This is only called to handle FC worker events. Since this a rare
249 * occurance, we allocate a struct lpfc_work_evt structure here instead of
250 * embedding it in the IOCB.
251 */
252int
253lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
254 uint32_t evt)
255{
256 struct lpfc_work_evt *evtp;
257
258 /*
259 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
260 * be queued to worker thread for processing
261 */
262 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
263 if (!evtp)
264 return 0;
265
266 evtp->evt_arg1 = arg1;
267 evtp->evt_arg2 = arg2;
268 evtp->evt = evt;
269
270 list_add_tail(&evtp->evt_listp, &phba->work_list);
271 spin_lock_irq(phba->host->host_lock);
272 if (phba->work_wait)
273 wake_up(phba->work_wait);
274 spin_unlock_irq(phba->host->host_lock);
275
276 return 1;
277}
278
279int
280lpfc_linkdown(struct lpfc_hba * phba)
281{
282 struct lpfc_sli *psli;
283 struct lpfc_nodelist *ndlp, *next_ndlp;
284 struct list_head *listp;
285 struct list_head *node_list[7];
286 LPFC_MBOXQ_t *mb;
287 int rc, i;
288
289 psli = &phba->sli;
290
291 spin_lock_irq(phba->host->host_lock);
292 phba->hba_state = LPFC_LINK_DOWN;
293 spin_unlock_irq(phba->host->host_lock);
294
295 /* Clean up any firmware default rpi's */
296 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
297 lpfc_unreg_did(phba, 0xffffffff, mb);
298 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
299 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
300 == MBX_NOT_FINISHED) {
301 mempool_free( mb, phba->mbox_mem_pool);
302 }
303 }
304
305 /* Cleanup any outstanding RSCN activity */
306 lpfc_els_flush_rscn(phba);
307
308 /* Cleanup any outstanding ELS commands */
309 lpfc_els_flush_cmd(phba);
310
311 /* Issue a LINK DOWN event to all nodes */
312 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
313 node_list[1] = &phba->fc_nlpmap_list;
314 node_list[2] = &phba->fc_nlpunmap_list;
315 node_list[3] = &phba->fc_prli_list;
316 node_list[4] = &phba->fc_reglogin_list;
317 node_list[5] = &phba->fc_adisc_list;
318 node_list[6] = &phba->fc_plogi_list;
319 for (i = 0; i < 7; i++) {
320 listp = node_list[i];
321 if (list_empty(listp))
322 continue;
323
324 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
325 /* Fabric nodes are not handled thru state machine for
326 link down */
327 if (ndlp->nlp_type & NLP_FABRIC) {
328 /* Remove ALL Fabric nodes except Fabric_DID */
329 if (ndlp->nlp_DID != Fabric_DID) {
330 /* Take it off current list and free */
331 lpfc_nlp_list(phba, ndlp,
332 NLP_NO_LIST);
333 }
334 }
335 else {
336
337 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
338 NLP_EVT_DEVICE_RECOVERY);
339
340 /* Check config parameter use-adisc or FCP-2 */
341 if ((rc != NLP_STE_FREED_NODE) &&
342 (phba->cfg_use_adisc == 0) &&
343 !(ndlp->nlp_fcp_info &
344 NLP_FCP_2_DEVICE)) {
345 /* We know we will have to relogin, so
346 * unreglogin the rpi right now to fail
347 * any outstanding I/Os quickly.
348 */
349 lpfc_unreg_rpi(phba, ndlp);
350 }
351 }
352 }
353 }
354
355 /* free any ndlp's on unused list */
356 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
357 nlp_listp) {
358 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
359 }
360
361 /* Setup myDID for link up if we are in pt2pt mode */
362 if (phba->fc_flag & FC_PT2PT) {
363 phba->fc_myDID = 0;
364 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
365 lpfc_config_link(phba, mb);
366 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
367 if (lpfc_sli_issue_mbox
368 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
369 == MBX_NOT_FINISHED) {
370 mempool_free( mb, phba->mbox_mem_pool);
371 }
372 }
373 spin_lock_irq(phba->host->host_lock);
374 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
375 spin_unlock_irq(phba->host->host_lock);
376 }
377 spin_lock_irq(phba->host->host_lock);
378 phba->fc_flag &= ~FC_LBIT;
379 spin_unlock_irq(phba->host->host_lock);
380
381 /* Turn off discovery timer if its running */
382 lpfc_can_disctmo(phba);
383
384 /* Must process IOCBs on all rings to handle ABORTed I/Os */
385 return (0);
386}
387
388static int
389lpfc_linkup(struct lpfc_hba * phba)
390{
391 struct lpfc_nodelist *ndlp, *next_ndlp;
392
393 spin_lock_irq(phba->host->host_lock);
394 phba->hba_state = LPFC_LINK_UP;
395 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
396 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
397 phba->fc_flag |= FC_NDISC_ACTIVE;
398 phba->fc_ns_retry = 0;
399 spin_unlock_irq(phba->host->host_lock);
400
401
402 /*
403 * Clean up old Fabric NLP_FABRIC logins.
404 */
405 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
406 nlp_listp) {
407 if (ndlp->nlp_DID == Fabric_DID) {
408 /* Take it off current list and free */
409 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
410 }
411 }
412
413 /* free any ndlp's on unused list */
414 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
415 nlp_listp) {
416 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
417 }
418
419 return 0;
420}
421
422/*
423 * This routine handles processing a CLEAR_LA mailbox
424 * command upon completion. It is setup in the LPFC_MBOXQ
425 * as the completion routine when the command is
426 * handed off to the SLI layer.
427 */
428void
429lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
430{
431 struct lpfc_sli *psli;
432 MAILBOX_t *mb;
433 uint32_t control;
434
435 psli = &phba->sli;
436 mb = &pmb->mb;
437 /* Since we don't do discovery right now, turn these off here */
438 psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
439 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
440 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
441
442 /* Check for error */
443 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
444 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
445 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
446 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
447 "state x%x\n",
448 phba->brd_no, mb->mbxStatus, phba->hba_state);
449
450 phba->hba_state = LPFC_HBA_ERROR;
451 goto out;
452 }
453
454 if (phba->fc_flag & FC_ABORT_DISCOVERY)
455 goto out;
456
457 phba->num_disc_nodes = 0;
458 /* go thru NPR list and issue ELS PLOGIs */
459 if (phba->fc_npr_cnt) {
460 lpfc_els_disc_plogi(phba);
461 }
462
463 if(!phba->num_disc_nodes) {
464 spin_lock_irq(phba->host->host_lock);
465 phba->fc_flag &= ~FC_NDISC_ACTIVE;
466 spin_unlock_irq(phba->host->host_lock);
467 }
468
469 phba->hba_state = LPFC_HBA_READY;
470
471out:
472 /* Device Discovery completes */
473 lpfc_printf_log(phba,
474 KERN_INFO,
475 LOG_DISCOVERY,
476 "%d:0225 Device Discovery completes\n",
477 phba->brd_no);
478
479 mempool_free( pmb, phba->mbox_mem_pool);
480
481 spin_lock_irq(phba->host->host_lock);
482 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
483 if (phba->fc_flag & FC_ESTABLISH_LINK) {
484 phba->fc_flag &= ~FC_ESTABLISH_LINK;
485 }
486 spin_unlock_irq(phba->host->host_lock);
487
488 del_timer_sync(&phba->fc_estabtmo);
489
490 lpfc_can_disctmo(phba);
491
492 /* turn on Link Attention interrupts */
493 spin_lock_irq(phba->host->host_lock);
494 psli->sli_flag |= LPFC_PROCESS_LA;
495 control = readl(phba->HCregaddr);
496 control |= HC_LAINT_ENA;
497 writel(control, phba->HCregaddr);
498 readl(phba->HCregaddr); /* flush */
499 spin_unlock_irq(phba->host->host_lock);
500
501 return;
502}
503
504static void
505lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
506{
507 struct lpfc_sli *psli;
508 MAILBOX_t *mb;
509
510 psli = &phba->sli;
511 mb = &pmb->mb;
512 /* Check for error */
513 if (mb->mbxStatus) {
514 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
515 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
516 "%d:0306 CONFIG_LINK mbxStatus error x%x "
517 "HBA state x%x\n",
518 phba->brd_no, mb->mbxStatus, phba->hba_state);
519
520 lpfc_linkdown(phba);
521 phba->hba_state = LPFC_HBA_ERROR;
522 goto out;
523 }
524
525 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
526 if (phba->fc_topology == TOPOLOGY_LOOP) {
527 /* If we are public loop and L bit was set */
528 if ((phba->fc_flag & FC_PUBLIC_LOOP) &&
529 !(phba->fc_flag & FC_LBIT)) {
530 /* Need to wait for FAN - use discovery timer
531 * for timeout. hba_state is identically
532 * LPFC_LOCAL_CFG_LINK while waiting for FAN
533 */
534 lpfc_set_disctmo(phba);
535 mempool_free( pmb, phba->mbox_mem_pool);
536 return;
537 }
538 }
539
540 /* Start discovery by sending a FLOGI hba_state is identically
541 * LPFC_FLOGI while waiting for FLOGI cmpl
542 */
543 phba->hba_state = LPFC_FLOGI;
544 lpfc_set_disctmo(phba);
545 lpfc_initial_flogi(phba);
546 mempool_free( pmb, phba->mbox_mem_pool);
547 return;
548 }
549 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
550 mempool_free( pmb, phba->mbox_mem_pool);
551 return;
552 }
553
554out:
555 /* CONFIG_LINK bad hba state <hba_state> */
556 lpfc_printf_log(phba,
557 KERN_ERR,
558 LOG_DISCOVERY,
559 "%d:0200 CONFIG_LINK bad hba state x%x\n",
560 phba->brd_no, phba->hba_state);
561
562 if (phba->hba_state != LPFC_CLEAR_LA) {
563 lpfc_clear_la(phba, pmb);
564 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
565 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
566 == MBX_NOT_FINISHED) {
567 mempool_free( pmb, phba->mbox_mem_pool);
568 lpfc_disc_flush_list(phba);
569 psli->ring[(psli->ip_ring)].flag &=
570 ~LPFC_STOP_IOCB_EVENT;
571 psli->ring[(psli->fcp_ring)].flag &=
572 ~LPFC_STOP_IOCB_EVENT;
573 psli->ring[(psli->next_ring)].flag &=
574 ~LPFC_STOP_IOCB_EVENT;
575 phba->hba_state = LPFC_HBA_READY;
576 }
577 } else {
578 mempool_free( pmb, phba->mbox_mem_pool);
579 }
580 return;
581}
582
583static void
584lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
585{
586 struct lpfc_sli *psli = &phba->sli;
587 MAILBOX_t *mb = &pmb->mb;
588 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
589
590
591 /* Check for error */
592 if (mb->mbxStatus) {
593 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
594 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
595 "%d:0319 READ_SPARAM mbxStatus error x%x "
596 "hba state x%x>\n",
597 phba->brd_no, mb->mbxStatus, phba->hba_state);
598
599 lpfc_linkdown(phba);
600 phba->hba_state = LPFC_HBA_ERROR;
601 goto out;
602 }
603
604 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
605 sizeof (struct serv_parm));
606 memcpy((uint8_t *) & phba->fc_nodename,
607 (uint8_t *) & phba->fc_sparam.nodeName,
608 sizeof (struct lpfc_name));
609 memcpy((uint8_t *) & phba->fc_portname,
610 (uint8_t *) & phba->fc_sparam.portName,
611 sizeof (struct lpfc_name));
612 lpfc_mbuf_free(phba, mp->virt, mp->phys);
613 kfree(mp);
614 mempool_free( pmb, phba->mbox_mem_pool);
615 return;
616
617out:
618 pmb->context1 = NULL;
619 lpfc_mbuf_free(phba, mp->virt, mp->phys);
620 kfree(mp);
621 if (phba->hba_state != LPFC_CLEAR_LA) {
622 lpfc_clear_la(phba, pmb);
623 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
624 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
625 == MBX_NOT_FINISHED) {
626 mempool_free( pmb, phba->mbox_mem_pool);
627 lpfc_disc_flush_list(phba);
628 psli->ring[(psli->ip_ring)].flag &=
629 ~LPFC_STOP_IOCB_EVENT;
630 psli->ring[(psli->fcp_ring)].flag &=
631 ~LPFC_STOP_IOCB_EVENT;
632 psli->ring[(psli->next_ring)].flag &=
633 ~LPFC_STOP_IOCB_EVENT;
634 phba->hba_state = LPFC_HBA_READY;
635 }
636 } else {
637 mempool_free( pmb, phba->mbox_mem_pool);
638 }
639 return;
640}
641
642static void
643lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
644{
645 int i;
646 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
647 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
648 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
649
650 spin_lock_irq(phba->host->host_lock);
651 switch(la->UlnkSpeed) {
652 case LA_1GHZ_LINK:
653 phba->fc_linkspeed = LA_1GHZ_LINK;
654 break;
655 case LA_2GHZ_LINK:
656 phba->fc_linkspeed = LA_2GHZ_LINK;
657 break;
658 case LA_4GHZ_LINK:
659 phba->fc_linkspeed = LA_4GHZ_LINK;
660 break;
661 default:
662 phba->fc_linkspeed = LA_UNKNW_LINK;
663 break;
664 }
665
666 phba->fc_topology = la->topology;
667
668 if (phba->fc_topology == TOPOLOGY_LOOP) {
669 /* Get Loop Map information */
670
671 if (la->il)
672 phba->fc_flag |= FC_LBIT;
673
674 phba->fc_myDID = la->granted_AL_PA;
675 i = la->un.lilpBde64.tus.f.bdeSize;
676
677 if (i == 0) {
678 phba->alpa_map[0] = 0;
679 } else {
680 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
681 int numalpa, j, k;
682 union {
683 uint8_t pamap[16];
684 struct {
685 uint32_t wd1;
686 uint32_t wd2;
687 uint32_t wd3;
688 uint32_t wd4;
689 } pa;
690 } un;
691 numalpa = phba->alpa_map[0];
692 j = 0;
693 while (j < numalpa) {
694 memset(un.pamap, 0, 16);
695 for (k = 1; j < numalpa; k++) {
696 un.pamap[k - 1] =
697 phba->alpa_map[j + 1];
698 j++;
699 if (k == 16)
700 break;
701 }
702 /* Link Up Event ALPA map */
703 lpfc_printf_log(phba,
704 KERN_WARNING,
705 LOG_LINK_EVENT,
706 "%d:1304 Link Up Event "
707 "ALPA map Data: x%x "
708 "x%x x%x x%x\n",
709 phba->brd_no,
710 un.pa.wd1, un.pa.wd2,
711 un.pa.wd3, un.pa.wd4);
712 }
713 }
714 }
715 } else {
716 phba->fc_myDID = phba->fc_pref_DID;
717 phba->fc_flag |= FC_LBIT;
718 }
719 spin_unlock_irq(phba->host->host_lock);
720
721 lpfc_linkup(phba);
722 if (sparam_mbox) {
723 lpfc_read_sparam(phba, sparam_mbox);
724 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
725 lpfc_sli_issue_mbox(phba, sparam_mbox,
726 (MBX_NOWAIT | MBX_STOP_IOCB));
727 }
728
729 if (cfglink_mbox) {
730 phba->hba_state = LPFC_LOCAL_CFG_LINK;
731 lpfc_config_link(phba, cfglink_mbox);
732 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link;
733 lpfc_sli_issue_mbox(phba, cfglink_mbox,
734 (MBX_NOWAIT | MBX_STOP_IOCB));
735 }
736}
737
738static void
739lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
740 uint32_t control;
741 struct lpfc_sli *psli = &phba->sli;
742
743 lpfc_linkdown(phba);
744
745 /* turn on Link Attention interrupts - no CLEAR_LA needed */
746 spin_lock_irq(phba->host->host_lock);
747 psli->sli_flag |= LPFC_PROCESS_LA;
748 control = readl(phba->HCregaddr);
749 control |= HC_LAINT_ENA;
750 writel(control, phba->HCregaddr);
751 readl(phba->HCregaddr); /* flush */
752 spin_unlock_irq(phba->host->host_lock);
753}
754
755/*
756 * This routine handles processing a READ_LA mailbox
757 * command upon completion. It is setup in the LPFC_MBOXQ
758 * as the completion routine when the command is
759 * handed off to the SLI layer.
760 */
761void
762lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
763{
764 READ_LA_VAR *la;
765 MAILBOX_t *mb = &pmb->mb;
766 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
767
768 /* Check for error */
769 if (mb->mbxStatus) {
770 lpfc_printf_log(phba,
771 KERN_INFO,
772 LOG_LINK_EVENT,
773 "%d:1307 READ_LA mbox error x%x state x%x\n",
774 phba->brd_no,
775 mb->mbxStatus, phba->hba_state);
776 lpfc_mbx_issue_link_down(phba);
777 phba->hba_state = LPFC_HBA_ERROR;
778 goto lpfc_mbx_cmpl_read_la_free_mbuf;
779 }
780
781 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
782
783 memcpy(&phba->alpa_map[0], mp->virt, 128);
784
785 if (((phba->fc_eventTag + 1) < la->eventTag) ||
786 (phba->fc_eventTag == la->eventTag)) {
787 phba->fc_stat.LinkMultiEvent++;
788 if (la->attType == AT_LINK_UP) {
789 if (phba->fc_eventTag != 0)
790 lpfc_linkdown(phba);
791 }
792 }
793
794 phba->fc_eventTag = la->eventTag;
795
796 if (la->attType == AT_LINK_UP) {
797 phba->fc_stat.LinkUp++;
798 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
799 "%d:1303 Link Up Event x%x received "
800 "Data: x%x x%x x%x x%x\n",
801 phba->brd_no, la->eventTag, phba->fc_eventTag,
802 la->granted_AL_PA, la->UlnkSpeed,
803 phba->alpa_map[0]);
804 lpfc_mbx_process_link_up(phba, la);
805 } else {
806 phba->fc_stat.LinkDown++;
807 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
808 "%d:1305 Link Down Event x%x received "
809 "Data: x%x x%x x%x\n",
810 phba->brd_no, la->eventTag, phba->fc_eventTag,
811 phba->hba_state, phba->fc_flag);
812 lpfc_mbx_issue_link_down(phba);
813 }
814
815lpfc_mbx_cmpl_read_la_free_mbuf:
816 lpfc_mbuf_free(phba, mp->virt, mp->phys);
817 kfree(mp);
818 mempool_free(pmb, phba->mbox_mem_pool);
819 return;
820}
821
822/*
823 * This routine handles processing a REG_LOGIN mailbox
824 * command upon completion. It is setup in the LPFC_MBOXQ
825 * as the completion routine when the command is
826 * handed off to the SLI layer.
827 */
828void
829lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
830{
831 struct lpfc_sli *psli;
832 MAILBOX_t *mb;
833 struct lpfc_dmabuf *mp;
834 struct lpfc_nodelist *ndlp;
835
836 psli = &phba->sli;
837 mb = &pmb->mb;
838
839 ndlp = (struct lpfc_nodelist *) pmb->context2;
840 mp = (struct lpfc_dmabuf *) (pmb->context1);
841
842 pmb->context1 = NULL;
843
844 /* Good status, call state machine */
845 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
846 lpfc_mbuf_free(phba, mp->virt, mp->phys);
847 kfree(mp);
848 mempool_free( pmb, phba->mbox_mem_pool);
849
850 return;
851}
852
853/*
854 * This routine handles processing a Fabric REG_LOGIN mailbox
855 * command upon completion. It is setup in the LPFC_MBOXQ
856 * as the completion routine when the command is
857 * handed off to the SLI layer.
858 */
859void
860lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
861{
862 struct lpfc_sli *psli;
863 MAILBOX_t *mb;
864 struct lpfc_dmabuf *mp;
865 struct lpfc_nodelist *ndlp;
866 struct lpfc_nodelist *ndlp_fdmi;
867
868
869 psli = &phba->sli;
870 mb = &pmb->mb;
871
872 ndlp = (struct lpfc_nodelist *) pmb->context2;
873 mp = (struct lpfc_dmabuf *) (pmb->context1);
874
875 if (mb->mbxStatus) {
876 lpfc_mbuf_free(phba, mp->virt, mp->phys);
877 kfree(mp);
878 mempool_free( pmb, phba->mbox_mem_pool);
879 mempool_free( ndlp, phba->nlp_mem_pool);
880
881 /* FLOGI failed, so just use loop map to make discovery list */
882 lpfc_disc_list_loopmap(phba);
883
884 /* Start discovery */
885 lpfc_disc_start(phba);
886 return;
887 }
888
889 pmb->context1 = NULL;
890
891 if (ndlp->nlp_rpi != 0)
892 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
893 ndlp->nlp_rpi = mb->un.varWords[0];
894 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
895 ndlp->nlp_type |= NLP_FABRIC;
896 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
897 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
898
899 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
900 /* This NPort has been assigned an NPort_ID by the fabric as a
901 * result of the completed fabric login. Issue a State Change
902 * Registration (SCR) ELS request to the fabric controller
903 * (SCR_DID) so that this NPort gets RSCN events from the
904 * fabric.
905 */
906 lpfc_issue_els_scr(phba, SCR_DID, 0);
907
908 /* Allocate a new node instance. If the pool is empty, just
909 * start the discovery process and skip the Nameserver login
910 * process. This is attempted again later on. Otherwise, issue
911 * a Port Login (PLOGI) to the NameServer
912 */
913 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
914 == 0) {
915 lpfc_disc_start(phba);
916 } else {
917 lpfc_nlp_init(phba, ndlp, NameServer_DID);
918 ndlp->nlp_type |= NLP_FABRIC;
919 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
920 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
921 lpfc_issue_els_plogi(phba, ndlp, 0);
922 if (phba->cfg_fdmi_on) {
923 if ((ndlp_fdmi = mempool_alloc(
924 phba->nlp_mem_pool,
925 GFP_KERNEL))) {
926 lpfc_nlp_init(phba, ndlp_fdmi,
927 FDMI_DID);
928 ndlp_fdmi->nlp_type |= NLP_FABRIC;
929 ndlp_fdmi->nlp_state =
930 NLP_STE_PLOGI_ISSUE;
931 lpfc_issue_els_plogi(phba, ndlp_fdmi,
932 0);
933 }
934 }
935 }
936 }
937
938 lpfc_mbuf_free(phba, mp->virt, mp->phys);
939 kfree(mp);
940 mempool_free( pmb, phba->mbox_mem_pool);
941
942 return;
943}
944
945/*
946 * This routine handles processing a NameServer REG_LOGIN mailbox
947 * command upon completion. It is setup in the LPFC_MBOXQ
948 * as the completion routine when the command is
949 * handed off to the SLI layer.
950 */
951void
952lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
953{
954 struct lpfc_sli *psli;
955 MAILBOX_t *mb;
956 struct lpfc_dmabuf *mp;
957 struct lpfc_nodelist *ndlp;
958
959 psli = &phba->sli;
960 mb = &pmb->mb;
961
962 ndlp = (struct lpfc_nodelist *) pmb->context2;
963 mp = (struct lpfc_dmabuf *) (pmb->context1);
964
965 if (mb->mbxStatus) {
966 lpfc_mbuf_free(phba, mp->virt, mp->phys);
967 kfree(mp);
968 mempool_free( pmb, phba->mbox_mem_pool);
969 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
970
971 /* RegLogin failed, so just use loop map to make discovery
972 list */
973 lpfc_disc_list_loopmap(phba);
974
975 /* Start discovery */
976 lpfc_disc_start(phba);
977 return;
978 }
979
980 pmb->context1 = NULL;
981
982 if (ndlp->nlp_rpi != 0)
983 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
984 ndlp->nlp_rpi = mb->un.varWords[0];
985 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
986 ndlp->nlp_type |= NLP_FABRIC;
987 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
988 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
989
990 if (phba->hba_state < LPFC_HBA_READY) {
991 /* Link up discovery requires Fabrib registration. */
992 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
993 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
994 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
995 }
996
997 phba->fc_ns_retry = 0;
998 /* Good status, issue CT Request to NameServer */
999 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1000 /* Cannot issue NameServer Query, so finish up discovery */
1001 lpfc_disc_start(phba);
1002 }
1003
1004 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1005 kfree(mp);
1006 mempool_free( pmb, phba->mbox_mem_pool);
1007
1008 return;
1009}
1010
1011static void
1012lpfc_register_remote_port(struct lpfc_hba * phba,
1013 struct lpfc_nodelist * ndlp)
1014{
1015 struct fc_rport *rport;
1016 struct lpfc_rport_data *rdata;
1017 struct fc_rport_identifiers rport_ids;
1018 uint64_t wwn;
1019
1020 /* Remote port has reappeared. Re-register w/ FC transport */
1021 memcpy(&wwn, &ndlp->nlp_nodename, sizeof(uint64_t));
1022 rport_ids.node_name = be64_to_cpu(wwn);
1023 memcpy(&wwn, &ndlp->nlp_portname, sizeof(uint64_t));
1024 rport_ids.port_name = be64_to_cpu(wwn);
1025 rport_ids.port_id = ndlp->nlp_DID;
1026 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1027 if (ndlp->nlp_type & NLP_FCP_TARGET)
1028 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1029 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1030 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1031
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;
1048
1049 return;
1050}
1051
1052int
1053lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1054{
1055 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1056 struct lpfc_sli *psli;
1057
1058 psli = &phba->sli;
1059 /* Sanity check to ensure we are not moving to / from the same list */
1060 if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1061 if (list != NLP_NO_LIST)
1062 return(0);
1063 }
1064
1065 switch(nlp->nlp_flag & NLP_LIST_MASK) {
1066 case NLP_NO_LIST: /* Not on any list */
1067 break;
1068 case NLP_UNUSED_LIST:
1069 phba->fc_unused_cnt--;
1070 list_del(&nlp->nlp_listp);
1071 break;
1072 case NLP_PLOGI_LIST:
1073 phba->fc_plogi_cnt--;
1074 list_del(&nlp->nlp_listp);
1075 break;
1076 case NLP_ADISC_LIST:
1077 phba->fc_adisc_cnt--;
1078 list_del(&nlp->nlp_listp);
1079 break;
1080 case NLP_REGLOGIN_LIST:
1081 phba->fc_reglogin_cnt--;
1082 list_del(&nlp->nlp_listp);
1083 break;
1084 case NLP_PRLI_LIST:
1085 phba->fc_prli_cnt--;
1086 list_del(&nlp->nlp_listp);
1087 break;
1088 case NLP_UNMAPPED_LIST:
1089 phba->fc_unmap_cnt--;
1090 list_del(&nlp->nlp_listp);
1091 spin_lock_irq(phba->host->host_lock);
1092 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1093 nlp->nlp_type &= ~NLP_FC_NODE;
1094 spin_unlock_irq(phba->host->host_lock);
1095 phba->nport_event_cnt++;
1096 if (nlp->rport)
1097 rport_del = unmapped;
1098 break;
1099 case NLP_MAPPED_LIST:
1100 phba->fc_map_cnt--;
1101 list_del(&nlp->nlp_listp);
1102 phba->nport_event_cnt++;
1103 if (nlp->rport)
1104 rport_del = mapped;
1105 break;
1106 case NLP_NPR_LIST:
1107 phba->fc_npr_cnt--;
1108 list_del(&nlp->nlp_listp);
1109 /* Stop delay tmo if taking node off NPR list */
1110 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1111 (list != NLP_NPR_LIST)) {
1112 spin_lock_irq(phba->host->host_lock);
1113 nlp->nlp_flag &= ~NLP_DELAY_TMO;
1114 spin_unlock_irq(phba->host->host_lock);
1115 del_timer_sync(&nlp->nlp_delayfunc);
1116 if (!list_empty(&nlp->els_retry_evt.evt_listp))
1117 list_del_init(&nlp->els_retry_evt.evt_listp);
1118 }
1119 break;
1120 }
1121
1122 spin_lock_irq(phba->host->host_lock);
1123 nlp->nlp_flag &= ~NLP_LIST_MASK;
1124 spin_unlock_irq(phba->host->host_lock);
1125
1126 /* Add NPort <did> to <num> list */
1127 lpfc_printf_log(phba,
1128 KERN_INFO,
1129 LOG_NODE,
1130 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1131 phba->brd_no,
1132 nlp->nlp_DID, list, nlp->nlp_flag);
1133
1134 switch(list) {
1135 case NLP_NO_LIST: /* No list, just remove it */
1136 lpfc_nlp_remove(phba, nlp);
1137 break;
1138 case NLP_UNUSED_LIST:
1139 spin_lock_irq(phba->host->host_lock);
1140 nlp->nlp_flag |= list;
1141 spin_unlock_irq(phba->host->host_lock);
1142 /* Put it at the end of the unused list */
1143 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1144 phba->fc_unused_cnt++;
1145 break;
1146 case NLP_PLOGI_LIST:
1147 spin_lock_irq(phba->host->host_lock);
1148 nlp->nlp_flag |= list;
1149 spin_unlock_irq(phba->host->host_lock);
1150 /* Put it at the end of the plogi list */
1151 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1152 phba->fc_plogi_cnt++;
1153 break;
1154 case NLP_ADISC_LIST:
1155 spin_lock_irq(phba->host->host_lock);
1156 nlp->nlp_flag |= list;
1157 spin_unlock_irq(phba->host->host_lock);
1158 /* Put it at the end of the adisc list */
1159 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1160 phba->fc_adisc_cnt++;
1161 break;
1162 case NLP_REGLOGIN_LIST:
1163 spin_lock_irq(phba->host->host_lock);
1164 nlp->nlp_flag |= list;
1165 spin_unlock_irq(phba->host->host_lock);
1166 /* Put it at the end of the reglogin list */
1167 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1168 phba->fc_reglogin_cnt++;
1169 break;
1170 case NLP_PRLI_LIST:
1171 spin_lock_irq(phba->host->host_lock);
1172 nlp->nlp_flag |= list;
1173 spin_unlock_irq(phba->host->host_lock);
1174 /* Put it at the end of the prli list */
1175 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1176 phba->fc_prli_cnt++;
1177 break;
1178 case NLP_UNMAPPED_LIST:
1179 rport_add = unmapped;
1180 /* ensure all vestiges of "mapped" significance are gone */
1181 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
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 unmap list */
1186 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1187 phba->fc_unmap_cnt++;
1188 phba->nport_event_cnt++;
1189 /* stop nodev tmo if running */
1190 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1191 spin_lock_irq(phba->host->host_lock);
1192 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1193 spin_unlock_irq(phba->host->host_lock);
1194 del_timer_sync(&nlp->nlp_tmofunc);
1195 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1196 list_del_init(&nlp->nodev_timeout_evt.
1197 evt_listp);
1198
1199 }
1200 nlp->nlp_type |= NLP_FC_NODE;
1201 break;
1202 case NLP_MAPPED_LIST:
1203 rport_add = mapped;
1204 spin_lock_irq(phba->host->host_lock);
1205 nlp->nlp_flag |= list;
1206 spin_unlock_irq(phba->host->host_lock);
1207 /* Put it at the end of the map list */
1208 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1209 phba->fc_map_cnt++;
1210 phba->nport_event_cnt++;
1211 /* stop nodev tmo if running */
1212 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1213 nlp->nlp_flag &= ~NLP_NODEV_TMO;
1214 del_timer_sync(&nlp->nlp_tmofunc);
1215 if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1216 list_del_init(&nlp->nodev_timeout_evt.
1217 evt_listp);
1218
1219 }
1220 break;
1221 case NLP_NPR_LIST:
1222 spin_lock_irq(phba->host->host_lock);
1223 nlp->nlp_flag |= list;
1224 spin_unlock_irq(phba->host->host_lock);
1225 /* Put it at the end of the npr list */
1226 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1227 phba->fc_npr_cnt++;
1228
1229 /*
1230 * Sanity check for Fabric entity.
1231 * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1232 */
1233 if (nlp->nlp_type & NLP_FABRIC) {
1234 mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1235 }
1236 else {
1237 mod_timer(&nlp->nlp_tmofunc,
1238 jiffies + HZ * phba->cfg_nodev_tmo);
1239 }
1240 spin_lock_irq(phba->host->host_lock);
1241 nlp->nlp_flag |= NLP_NODEV_TMO;
1242 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1243 spin_unlock_irq(phba->host->host_lock);
1244 break;
1245 case NLP_JUST_DQ:
1246 break;
1247 }
1248
1249 /*
1250 * We make all the calls into the transport after we have
1251 * moved the node between lists. This so that we don't
1252 * release the lock while in-between lists.
1253 */
1254
1255 /* Don't upcall midlayer if we're unloading */
1256 if (!(phba->fc_flag & FC_UNLOADING)) {
1257 /*
1258 * We revalidate the rport pointer as the "add" function
1259 * may have removed the remote port.
1260 */
1261 if ((rport_del != none) && nlp->rport)
1262 fc_remote_port_block(nlp->rport);
1263
1264 if (rport_add != none) {
1265 /*
1266 * Tell the fc transport about the port, if we haven't
1267 * already. If we have, and it's a scsi entity, be
1268 * sure to unblock any attached scsi devices
1269 */
1270 if (!nlp->rport)
1271 lpfc_register_remote_port(phba, nlp);
1272 else
1273 fc_remote_port_unblock(nlp->rport);
1274
1275 /*
1276 * if we added to Mapped list, but the remote port
1277 * registration failed or assigned a target id outside
1278 * our presentable range - move the node to the
1279 * Unmapped List
1280 */
1281 if ((rport_add == mapped) &&
1282 ((!nlp->rport) ||
1283 (nlp->rport->scsi_target_id == -1) ||
1284 (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1285 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1286 spin_lock_irq(phba->host->host_lock);
1287 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1288 spin_unlock_irq(phba->host->host_lock);
1289 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1290 }
1291 }
1292 }
1293 return (0);
1294}
1295
1296/*
1297 * Start / ReStart rescue timer for Discovery / RSCN handling
1298 */
1299void
1300lpfc_set_disctmo(struct lpfc_hba * phba)
1301{
1302 uint32_t tmo;
1303
1304 tmo = ((phba->fc_ratov * 2) + 1);
1305
1306 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1307 spin_lock_irq(phba->host->host_lock);
1308 phba->fc_flag |= FC_DISC_TMO;
1309 spin_unlock_irq(phba->host->host_lock);
1310
1311 /* Start Discovery Timer state <hba_state> */
1312 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1313 "%d:0247 Start Discovery Timer state x%x "
1314 "Data: x%x x%lx x%x x%x\n",
1315 phba->brd_no,
1316 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1317 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1318
1319 return;
1320}
1321
1322/*
1323 * Cancel rescue timer for Discovery / RSCN handling
1324 */
1325int
1326lpfc_can_disctmo(struct lpfc_hba * phba)
1327{
1328 /* Turn off discovery timer if its running */
1329 if (phba->fc_flag & FC_DISC_TMO) {
1330 spin_lock_irq(phba->host->host_lock);
1331 phba->fc_flag &= ~FC_DISC_TMO;
1332 spin_unlock_irq(phba->host->host_lock);
1333 del_timer_sync(&phba->fc_disctmo);
1334 phba->work_hba_events &= ~WORKER_DISC_TMO;
1335 }
1336
1337 /* Cancel Discovery Timer state <hba_state> */
1338 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1339 "%d:0248 Cancel Discovery Timer state x%x "
1340 "Data: x%x x%x x%x\n",
1341 phba->brd_no, phba->hba_state, phba->fc_flag,
1342 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1343
1344 return (0);
1345}
1346
1347/*
1348 * Check specified ring for outstanding IOCB on the SLI queue
1349 * Return true if iocb matches the specified nport
1350 */
1351int
1352lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1353 struct lpfc_sli_ring * pring,
1354 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1355{
1356 struct lpfc_sli *psli;
1357 IOCB_t *icmd;
1358
1359 psli = &phba->sli;
1360 icmd = &iocb->iocb;
1361 if (pring->ringno == LPFC_ELS_RING) {
1362 switch (icmd->ulpCommand) {
1363 case CMD_GEN_REQUEST64_CR:
1364 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1365 return (1);
1366 case CMD_ELS_REQUEST64_CR:
1367 case CMD_XMIT_ELS_RSP64_CX:
1368 if (iocb->context1 == (uint8_t *) ndlp)
1369 return (1);
1370 }
1371 } else if (pring->ringno == psli->ip_ring) {
1372
1373 } else if (pring->ringno == psli->fcp_ring) {
1374 /* Skip match check if waiting to relogin to FCP target */
1375 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1376 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1377 return (0);
1378 }
1379 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1380 return (1);
1381 }
1382 } else if (pring->ringno == psli->next_ring) {
1383
1384 }
1385 return (0);
1386}
1387
1388/*
1389 * Free resources / clean up outstanding I/Os
1390 * associated with nlp_rpi in the LPFC_NODELIST entry.
1391 */
1392static int
1393lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1394{
1395 struct lpfc_sli *psli;
1396 struct lpfc_sli_ring *pring;
1397 struct lpfc_iocbq *iocb, *next_iocb;
1398 IOCB_t *icmd;
1399 uint32_t rpi, i;
1400
1401 /*
1402 * Everything that matches on txcmplq will be returned
1403 * by firmware with a no rpi error.
1404 */
1405 psli = &phba->sli;
1406 rpi = ndlp->nlp_rpi;
1407 if (rpi) {
1408 /* Now process each ring */
1409 for (i = 0; i < psli->num_rings; i++) {
1410 pring = &psli->ring[i];
1411
1412 spin_lock_irq(phba->host->host_lock);
1413 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1414 list) {
1415 /*
1416 * Check to see if iocb matches the nport we are
1417 * looking for
1418 */
1419 if ((lpfc_check_sli_ndlp
1420 (phba, pring, iocb, ndlp))) {
1421 /* It matches, so deque and call compl
1422 with an error */
1423 list_del(&iocb->list);
1424 pring->txq_cnt--;
1425 if (iocb->iocb_cmpl) {
1426 icmd = &iocb->iocb;
1427 icmd->ulpStatus =
1428 IOSTAT_LOCAL_REJECT;
1429 icmd->un.ulpWord[4] =
1430 IOERR_SLI_ABORTED;
1431 spin_unlock_irq(phba->host->
1432 host_lock);
1433 (iocb->iocb_cmpl) (phba,
1434 iocb, iocb);
1435 spin_lock_irq(phba->host->
1436 host_lock);
1437 } else {
1438 list_add_tail(&iocb->list,
1439 &phba->lpfc_iocb_list);
1440 }
1441 }
1442 }
1443 spin_unlock_irq(phba->host->host_lock);
1444
1445 }
1446 }
1447 return (0);
1448}
1449
1450/*
1451 * Free rpi associated with LPFC_NODELIST entry.
1452 * This routine is called from lpfc_freenode(), when we are removing
1453 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1454 * LOGO that completes successfully, and we are waiting to PLOGI back
1455 * to the remote NPort. In addition, it is called after we receive
1456 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1457 * we are waiting to PLOGI back to the remote NPort.
1458 */
1459int
1460lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1461{
1462 LPFC_MBOXQ_t *mbox;
1463 int rc;
1464
1465 if (ndlp->nlp_rpi) {
1466 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1467 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1468 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1469 rc = lpfc_sli_issue_mbox
1470 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1471 if (rc == MBX_NOT_FINISHED)
1472 mempool_free( mbox, phba->mbox_mem_pool);
1473 }
1474 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1475 lpfc_no_rpi(phba, ndlp);
1476 ndlp->nlp_rpi = 0;
1477 return 1;
1478 }
1479 return 0;
1480}
1481
1482/*
1483 * Free resources associated with LPFC_NODELIST entry
1484 * so it can be freed.
1485 */
1486static int
1487lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1488{
1489 LPFC_MBOXQ_t *mb;
1490 LPFC_MBOXQ_t *nextmb;
1491 struct lpfc_dmabuf *mp;
1492 struct fc_rport *rport;
1493
1494 /* Cleanup node for NPort <nlp_DID> */
1495 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1496 "%d:0900 Cleanup node for NPort x%x "
1497 "Data: x%x x%x x%x\n",
1498 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1499 ndlp->nlp_state, ndlp->nlp_rpi);
1500
1501 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1502
1503 /*
1504 * if unloading the driver - just leave the remote port in place.
1505 * The driver unload will force the attached devices to detach
1506 * and flush cache's w/o generating flush errors.
1507 */
1508 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1509 rport = ndlp->rport;
1510 ndlp->rport = NULL;
1511 fc_remote_port_unblock(rport);
1512 fc_remote_port_delete(rport);
1513 ndlp->nlp_sid = NLP_NO_SID;
1514 }
1515
1516 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1517 if ((mb = phba->sli.mbox_active)) {
1518 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1519 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1520 mb->context2 = NULL;
1521 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1522 }
1523 }
1524 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1525 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1526 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1527 mp = (struct lpfc_dmabuf *) (mb->context1);
1528 if (mp) {
1529 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1530 kfree(mp);
1531 }
1532 list_del(&mb->list);
1533 mempool_free(mb, phba->mbox_mem_pool);
1534 }
1535 }
1536
1537 lpfc_els_abort(phba,ndlp,0);
1538 spin_lock_irq(phba->host->host_lock);
1539 ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1540 spin_unlock_irq(phba->host->host_lock);
1541 del_timer_sync(&ndlp->nlp_tmofunc);
1542
1543 del_timer_sync(&ndlp->nlp_delayfunc);
1544
1545 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1546 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1547 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1548 list_del_init(&ndlp->els_retry_evt.evt_listp);
1549
1550 lpfc_unreg_rpi(phba, ndlp);
1551
1552 return (0);
1553}
1554
1555/*
1556 * Check to see if we can free the nlp back to the freelist.
1557 * If we are in the middle of using the nlp in the discovery state
1558 * machine, defer the free till we reach the end of the state machine.
1559 */
1560int
1561lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1562{
1563 if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1564 spin_lock_irq(phba->host->host_lock);
1565 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1566 spin_unlock_irq(phba->host->host_lock);
1567 del_timer_sync(&ndlp->nlp_tmofunc);
1568 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1569 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1570
1571 }
1572
1573
1574 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1575 spin_lock_irq(phba->host->host_lock);
1576 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1577 spin_unlock_irq(phba->host->host_lock);
1578 del_timer_sync(&ndlp->nlp_delayfunc);
1579 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1580 list_del_init(&ndlp->els_retry_evt.evt_listp);
1581 }
1582
1583 if (ndlp->nlp_disc_refcnt) {
1584 spin_lock_irq(phba->host->host_lock);
1585 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1586 spin_unlock_irq(phba->host->host_lock);
1587 }
1588 else {
1589 lpfc_freenode(phba, ndlp);
1590 mempool_free( ndlp, phba->nlp_mem_pool);
1591 }
1592 return(0);
1593}
1594
1595static int
1596lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1597{
1598 D_ID mydid;
1599 D_ID ndlpdid;
1600 D_ID matchdid;
1601
1602 if (did == Bcast_DID)
1603 return (0);
1604
1605 if (ndlp->nlp_DID == 0) {
1606 return (0);
1607 }
1608
1609 /* First check for Direct match */
1610 if (ndlp->nlp_DID == did)
1611 return (1);
1612
1613 /* Next check for area/domain identically equals 0 match */
1614 mydid.un.word = phba->fc_myDID;
1615 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1616 return (0);
1617 }
1618
1619 matchdid.un.word = did;
1620 ndlpdid.un.word = ndlp->nlp_DID;
1621 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1622 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1623 (mydid.un.b.area == matchdid.un.b.area)) {
1624 if ((ndlpdid.un.b.domain == 0) &&
1625 (ndlpdid.un.b.area == 0)) {
1626 if (ndlpdid.un.b.id)
1627 return (1);
1628 }
1629 return (0);
1630 }
1631
1632 matchdid.un.word = ndlp->nlp_DID;
1633 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1634 (mydid.un.b.area == ndlpdid.un.b.area)) {
1635 if ((matchdid.un.b.domain == 0) &&
1636 (matchdid.un.b.area == 0)) {
1637 if (matchdid.un.b.id)
1638 return (1);
1639 }
1640 }
1641 }
1642 return (0);
1643}
1644
1645/* Search for a nodelist entry on a specific list */
1646struct lpfc_nodelist *
1647lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1648{
1649 struct lpfc_nodelist *ndlp, *next_ndlp;
1650 uint32_t data1;
1651
1652 if (order & NLP_SEARCH_UNMAPPED) {
1653 list_for_each_entry_safe(ndlp, next_ndlp,
1654 &phba->fc_nlpunmap_list, nlp_listp) {
1655 if (lpfc_matchdid(phba, ndlp, did)) {
1656 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1657 ((uint32_t) ndlp->nlp_xri << 16) |
1658 ((uint32_t) ndlp->nlp_type << 8) |
1659 ((uint32_t) ndlp->nlp_rpi & 0xff));
1660 /* FIND node DID unmapped */
1661 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1662 "%d:0929 FIND node DID unmapped"
1663 " Data: x%p x%x x%x x%x\n",
1664 phba->brd_no,
1665 ndlp, ndlp->nlp_DID,
1666 ndlp->nlp_flag, data1);
1667 return (ndlp);
1668 }
1669 }
1670 }
1671
1672 if (order & NLP_SEARCH_MAPPED) {
1673 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1674 nlp_listp) {
1675 if (lpfc_matchdid(phba, ndlp, did)) {
1676
1677 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1678 ((uint32_t) ndlp->nlp_xri << 16) |
1679 ((uint32_t) ndlp->nlp_type << 8) |
1680 ((uint32_t) ndlp->nlp_rpi & 0xff));
1681 /* FIND node DID mapped */
1682 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1683 "%d:0930 FIND node DID mapped "
1684 "Data: x%p x%x x%x x%x\n",
1685 phba->brd_no,
1686 ndlp, ndlp->nlp_DID,
1687 ndlp->nlp_flag, data1);
1688 return (ndlp);
1689 }
1690 }
1691 }
1692
1693 if (order & NLP_SEARCH_PLOGI) {
1694 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1695 nlp_listp) {
1696 if (lpfc_matchdid(phba, ndlp, did)) {
1697
1698 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1699 ((uint32_t) ndlp->nlp_xri << 16) |
1700 ((uint32_t) ndlp->nlp_type << 8) |
1701 ((uint32_t) ndlp->nlp_rpi & 0xff));
1702 /* LOG change to PLOGI */
1703 /* FIND node DID plogi */
1704 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1705 "%d:0908 FIND node DID plogi "
1706 "Data: x%p x%x x%x x%x\n",
1707 phba->brd_no,
1708 ndlp, ndlp->nlp_DID,
1709 ndlp->nlp_flag, data1);
1710 return (ndlp);
1711 }
1712 }
1713 }
1714
1715 if (order & NLP_SEARCH_ADISC) {
1716 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1717 nlp_listp) {
1718 if (lpfc_matchdid(phba, ndlp, did)) {
1719
1720 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1721 ((uint32_t) ndlp->nlp_xri << 16) |
1722 ((uint32_t) ndlp->nlp_type << 8) |
1723 ((uint32_t) ndlp->nlp_rpi & 0xff));
1724 /* LOG change to ADISC */
1725 /* FIND node DID adisc */
1726 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1727 "%d:0931 FIND node DID adisc "
1728 "Data: x%p x%x x%x x%x\n",
1729 phba->brd_no,
1730 ndlp, ndlp->nlp_DID,
1731 ndlp->nlp_flag, data1);
1732 return (ndlp);
1733 }
1734 }
1735 }
1736
1737 if (order & NLP_SEARCH_REGLOGIN) {
1738 list_for_each_entry_safe(ndlp, next_ndlp,
1739 &phba->fc_reglogin_list, nlp_listp) {
1740 if (lpfc_matchdid(phba, ndlp, did)) {
1741
1742 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1743 ((uint32_t) ndlp->nlp_xri << 16) |
1744 ((uint32_t) ndlp->nlp_type << 8) |
1745 ((uint32_t) ndlp->nlp_rpi & 0xff));
1746 /* LOG change to REGLOGIN */
1747 /* FIND node DID reglogin */
1748 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1749 "%d:0931 FIND node DID reglogin"
1750 " Data: x%p x%x x%x x%x\n",
1751 phba->brd_no,
1752 ndlp, ndlp->nlp_DID,
1753 ndlp->nlp_flag, data1);
1754 return (ndlp);
1755 }
1756 }
1757 }
1758
1759 if (order & NLP_SEARCH_PRLI) {
1760 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1761 nlp_listp) {
1762 if (lpfc_matchdid(phba, ndlp, did)) {
1763
1764 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1765 ((uint32_t) ndlp->nlp_xri << 16) |
1766 ((uint32_t) ndlp->nlp_type << 8) |
1767 ((uint32_t) ndlp->nlp_rpi & 0xff));
1768 /* LOG change to PRLI */
1769 /* FIND node DID prli */
1770 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1771 "%d:0931 FIND node DID prli "
1772 "Data: x%p x%x x%x x%x\n",
1773 phba->brd_no,
1774 ndlp, ndlp->nlp_DID,
1775 ndlp->nlp_flag, data1);
1776 return (ndlp);
1777 }
1778 }
1779 }
1780
1781 if (order & NLP_SEARCH_NPR) {
1782 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1783 nlp_listp) {
1784 if (lpfc_matchdid(phba, ndlp, did)) {
1785
1786 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1787 ((uint32_t) ndlp->nlp_xri << 16) |
1788 ((uint32_t) ndlp->nlp_type << 8) |
1789 ((uint32_t) ndlp->nlp_rpi & 0xff));
1790 /* LOG change to NPR */
1791 /* FIND node DID npr */
1792 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1793 "%d:0931 FIND node DID npr "
1794 "Data: x%p x%x x%x x%x\n",
1795 phba->brd_no,
1796 ndlp, ndlp->nlp_DID,
1797 ndlp->nlp_flag, data1);
1798 return (ndlp);
1799 }
1800 }
1801 }
1802
1803 if (order & NLP_SEARCH_UNUSED) {
1804 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1805 nlp_listp) {
1806 if (lpfc_matchdid(phba, ndlp, did)) {
1807
1808 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1809 ((uint32_t) ndlp->nlp_xri << 16) |
1810 ((uint32_t) ndlp->nlp_type << 8) |
1811 ((uint32_t) ndlp->nlp_rpi & 0xff));
1812 /* LOG change to UNUSED */
1813 /* FIND node DID unused */
1814 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1815 "%d:0931 FIND node DID unused "
1816 "Data: x%p x%x x%x x%x\n",
1817 phba->brd_no,
1818 ndlp, ndlp->nlp_DID,
1819 ndlp->nlp_flag, data1);
1820 return (ndlp);
1821 }
1822 }
1823 }
1824
1825 /* FIND node did <did> NOT FOUND */
1826 lpfc_printf_log(phba,
1827 KERN_INFO,
1828 LOG_NODE,
1829 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1830 phba->brd_no, did, order);
1831
1832 /* no match found */
1833 return NULL;
1834}
1835
1836struct lpfc_nodelist *
1837lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1838{
1839 struct lpfc_nodelist *ndlp;
1840 uint32_t flg;
1841
1842 if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1843 if ((phba->hba_state == LPFC_HBA_READY) &&
1844 ((lpfc_rscn_payload_check(phba, did) == 0)))
1845 return NULL;
1846 ndlp = (struct lpfc_nodelist *)
1847 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1848 if (!ndlp)
1849 return NULL;
1850 lpfc_nlp_init(phba, ndlp, did);
1851 ndlp->nlp_state = NLP_STE_NPR_NODE;
1852 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1853 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1854 return ndlp;
1855 }
1856 if ((phba->hba_state == LPFC_HBA_READY) &&
1857 (phba->fc_flag & FC_RSCN_MODE)) {
1858 if (lpfc_rscn_payload_check(phba, did)) {
1859 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1860 }
1861 else {
1862 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1863 ndlp = NULL;
1864 }
1865 }
1866 else {
1867 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1868 if ((flg == NLP_ADISC_LIST) ||
1869 (flg == NLP_PLOGI_LIST)) {
1870 return NULL;
1871 }
1872 ndlp->nlp_state = NLP_STE_NPR_NODE;
1873 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1874 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1875 }
1876 return ndlp;
1877}
1878
1879/* Build a list of nodes to discover based on the loopmap */
1880void
1881lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1882{
1883 int j;
1884 uint32_t alpa, index;
1885
1886 if (phba->hba_state <= LPFC_LINK_DOWN) {
1887 return;
1888 }
1889 if (phba->fc_topology != TOPOLOGY_LOOP) {
1890 return;
1891 }
1892
1893 /* Check for loop map present or not */
1894 if (phba->alpa_map[0]) {
1895 for (j = 1; j <= phba->alpa_map[0]; j++) {
1896 alpa = phba->alpa_map[j];
1897
1898 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1899 continue;
1900 }
1901 lpfc_setup_disc_node(phba, alpa);
1902 }
1903 } else {
1904 /* No alpamap, so try all alpa's */
1905 for (j = 0; j < FC_MAXLOOP; j++) {
1906 /* If cfg_scan_down is set, start from highest
1907 * ALPA (0xef) to lowest (0x1).
1908 */
1909 if (phba->cfg_scan_down)
1910 index = j;
1911 else
1912 index = FC_MAXLOOP - j - 1;
1913 alpa = lpfcAlpaArray[index];
1914 if ((phba->fc_myDID & 0xff) == alpa) {
1915 continue;
1916 }
1917
1918 lpfc_setup_disc_node(phba, alpa);
1919 }
1920 }
1921 return;
1922}
1923
1924/* Start Link up / RSCN discovery on NPR list */
1925void
1926lpfc_disc_start(struct lpfc_hba * phba)
1927{
1928 struct lpfc_sli *psli;
1929 LPFC_MBOXQ_t *mbox;
1930 struct lpfc_nodelist *ndlp, *next_ndlp;
1931 uint32_t did_changed, num_sent;
1932 uint32_t clear_la_pending;
1933 int rc;
1934
1935 psli = &phba->sli;
1936
1937 if (phba->hba_state <= LPFC_LINK_DOWN) {
1938 return;
1939 }
1940 if (phba->hba_state == LPFC_CLEAR_LA)
1941 clear_la_pending = 1;
1942 else
1943 clear_la_pending = 0;
1944
1945 if (phba->hba_state < LPFC_HBA_READY) {
1946 phba->hba_state = LPFC_DISC_AUTH;
1947 }
1948 lpfc_set_disctmo(phba);
1949
1950 if (phba->fc_prevDID == phba->fc_myDID) {
1951 did_changed = 0;
1952 } else {
1953 did_changed = 1;
1954 }
1955 phba->fc_prevDID = phba->fc_myDID;
1956 phba->num_disc_nodes = 0;
1957
1958 /* Start Discovery state <hba_state> */
1959 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1960 "%d:0202 Start Discovery hba state x%x "
1961 "Data: x%x x%x x%x\n",
1962 phba->brd_no, phba->hba_state, phba->fc_flag,
1963 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1964
1965 /* If our did changed, we MUST do PLOGI */
1966 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1967 nlp_listp) {
1968 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1969 if (did_changed) {
1970 spin_lock_irq(phba->host->host_lock);
1971 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1972 spin_unlock_irq(phba->host->host_lock);
1973 }
1974 }
1975 }
1976
1977 /* First do ADISCs - if any */
1978 num_sent = lpfc_els_disc_adisc(phba);
1979
1980 if (num_sent)
1981 return;
1982
1983 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1984 /* If we get here, there is nothing to ADISC */
1985 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1986 phba->hba_state = LPFC_CLEAR_LA;
1987 lpfc_clear_la(phba, mbox);
1988 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1989 rc = lpfc_sli_issue_mbox(phba, mbox,
1990 (MBX_NOWAIT | MBX_STOP_IOCB));
1991 if (rc == MBX_NOT_FINISHED) {
1992 mempool_free( mbox, phba->mbox_mem_pool);
1993 lpfc_disc_flush_list(phba);
1994 psli->ring[(psli->ip_ring)].flag &=
1995 ~LPFC_STOP_IOCB_EVENT;
1996 psli->ring[(psli->fcp_ring)].flag &=
1997 ~LPFC_STOP_IOCB_EVENT;
1998 psli->ring[(psli->next_ring)].flag &=
1999 ~LPFC_STOP_IOCB_EVENT;
2000 phba->hba_state = LPFC_HBA_READY;
2001 }
2002 }
2003 } else {
2004 /* Next do PLOGIs - if any */
2005 num_sent = lpfc_els_disc_plogi(phba);
2006
2007 if (num_sent)
2008 return;
2009
2010 if (phba->fc_flag & FC_RSCN_MODE) {
2011 /* Check to see if more RSCNs came in while we
2012 * were processing this one.
2013 */
2014 if ((phba->fc_rscn_id_cnt == 0) &&
2015 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2016 spin_lock_irq(phba->host->host_lock);
2017 phba->fc_flag &= ~FC_RSCN_MODE;
2018 spin_unlock_irq(phba->host->host_lock);
2019 }
2020 else
2021 lpfc_els_handle_rscn(phba);
2022 }
2023 }
2024 return;
2025}
2026
2027/*
2028 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2029 * ring the match the sppecified nodelist.
2030 */
2031static void
2032lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2033{
2034 struct lpfc_sli *psli;
2035 IOCB_t *icmd;
2036 struct lpfc_iocbq *iocb, *next_iocb;
2037 struct lpfc_sli_ring *pring;
2038 struct lpfc_dmabuf *mp;
2039
2040 psli = &phba->sli;
2041 pring = &psli->ring[LPFC_ELS_RING];
2042
2043 /* Error matching iocb on txq or txcmplq
2044 * First check the txq.
2045 */
2046 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2047 if (iocb->context1 != ndlp) {
2048 continue;
2049 }
2050 icmd = &iocb->iocb;
2051 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2052 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2053
2054 list_del(&iocb->list);
2055 pring->txq_cnt--;
2056 lpfc_els_free_iocb(phba, iocb);
2057 }
2058 }
2059
2060 /* Next check the txcmplq */
2061 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2062 if (iocb->context1 != ndlp) {
2063 continue;
2064 }
2065 icmd = &iocb->iocb;
2066 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2067 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2068
2069 iocb->iocb_cmpl = NULL;
2070 /* context2 = cmd, context2->next = rsp, context3 =
2071 bpl */
2072 if (iocb->context2) {
2073 /* Free the response IOCB before handling the
2074 command. */
2075
2076 mp = (struct lpfc_dmabuf *) (iocb->context2);
2077 mp = list_get_first(&mp->list,
2078 struct lpfc_dmabuf,
2079 list);
2080 if (mp) {
2081 /* Delay before releasing rsp buffer to
2082 * give UNREG mbox a chance to take
2083 * effect.
2084 */
2085 list_add(&mp->list,
2086 &phba->freebufList);
2087 }
2088 lpfc_mbuf_free(phba,
2089 ((struct lpfc_dmabuf *)
2090 iocb->context2)->virt,
2091 ((struct lpfc_dmabuf *)
2092 iocb->context2)->phys);
2093 kfree(iocb->context2);
2094 }
2095
2096 if (iocb->context3) {
2097 lpfc_mbuf_free(phba,
2098 ((struct lpfc_dmabuf *)
2099 iocb->context3)->virt,
2100 ((struct lpfc_dmabuf *)
2101 iocb->context3)->phys);
2102 kfree(iocb->context3);
2103 }
2104 }
2105 }
2106
2107 return;
2108}
2109
2110void
2111lpfc_disc_flush_list(struct lpfc_hba * phba)
2112{
2113 struct lpfc_nodelist *ndlp, *next_ndlp;
2114
2115 if (phba->fc_plogi_cnt) {
2116 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2117 nlp_listp) {
2118 lpfc_free_tx(phba, ndlp);
2119 lpfc_nlp_remove(phba, ndlp);
2120 }
2121 }
2122 if (phba->fc_adisc_cnt) {
2123 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2124 nlp_listp) {
2125 lpfc_free_tx(phba, ndlp);
2126 lpfc_nlp_remove(phba, ndlp);
2127 }
2128 }
2129 return;
2130}
2131
2132/*****************************************************************************/
2133/*
2134 * NAME: lpfc_disc_timeout
2135 *
2136 * FUNCTION: Fibre Channel driver discovery timeout routine.
2137 *
2138 * EXECUTION ENVIRONMENT: interrupt only
2139 *
2140 * CALLED FROM:
2141 * Timer function
2142 *
2143 * RETURNS:
2144 * none
2145 */
2146/*****************************************************************************/
2147void
2148lpfc_disc_timeout(unsigned long ptr)
2149{
2150 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2151 unsigned long flags = 0;
2152
2153 if (unlikely(!phba))
2154 return;
2155
2156 spin_lock_irqsave(phba->host->host_lock, flags);
2157 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2158 phba->work_hba_events |= WORKER_DISC_TMO;
2159 if (phba->work_wait)
2160 wake_up(phba->work_wait);
2161 }
2162 spin_unlock_irqrestore(phba->host->host_lock, flags);
2163 return;
2164}
2165
2166static void
2167lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2168{
2169 struct lpfc_sli *psli;
2170 struct lpfc_nodelist *ndlp;
2171 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2172 int rc, clrlaerr = 0;
2173
2174 if (unlikely(!phba))
2175 return;
2176
2177 if (!(phba->fc_flag & FC_DISC_TMO))
2178 return;
2179
2180 psli = &phba->sli;
2181
2182 spin_lock_irq(phba->host->host_lock);
2183 phba->fc_flag &= ~FC_DISC_TMO;
2184 spin_unlock_irq(phba->host->host_lock);
2185
2186 switch (phba->hba_state) {
2187
2188 case LPFC_LOCAL_CFG_LINK:
2189 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2190 /* FAN timeout */
2191 lpfc_printf_log(phba,
2192 KERN_WARNING,
2193 LOG_DISCOVERY,
2194 "%d:0221 FAN timeout\n",
2195 phba->brd_no);
2196
2197 /* Forget about FAN, Start discovery by sending a FLOGI
2198 * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2199 * cmpl
2200 */
2201 phba->hba_state = LPFC_FLOGI;
2202 lpfc_set_disctmo(phba);
2203 lpfc_initial_flogi(phba);
2204 break;
2205
2206 case LPFC_FLOGI:
2207 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2208 /* Initial FLOGI timeout */
2209 lpfc_printf_log(phba,
2210 KERN_ERR,
2211 LOG_DISCOVERY,
2212 "%d:0222 Initial FLOGI timeout\n",
2213 phba->brd_no);
2214
2215 /* Assume no Fabric and go on with discovery.
2216 * Check for outstanding ELS FLOGI to abort.
2217 */
2218
2219 /* FLOGI failed, so just use loop map to make discovery list */
2220 lpfc_disc_list_loopmap(phba);
2221
2222 /* Start discovery */
2223 lpfc_disc_start(phba);
2224 break;
2225
2226 case LPFC_FABRIC_CFG_LINK:
2227 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2228 NameServer login */
2229 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2230 "%d:0223 Timeout while waiting for NameServer "
2231 "login\n", phba->brd_no);
2232
2233 /* Next look for NameServer ndlp */
2234 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2235 if (ndlp)
2236 lpfc_nlp_remove(phba, ndlp);
2237 /* Start discovery */
2238 lpfc_disc_start(phba);
2239 break;
2240
2241 case LPFC_NS_QRY:
2242 /* Check for wait for NameServer Rsp timeout */
2243 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2244 "%d:0224 NameServer Query timeout "
2245 "Data: x%x x%x\n",
2246 phba->brd_no,
2247 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2248
2249 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2250 NameServer_DID);
2251 if (ndlp) {
2252 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2253 /* Try it one more time */
2254 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2255 if (rc == 0)
2256 break;
2257 }
2258 phba->fc_ns_retry = 0;
2259 }
2260
2261 /* Nothing to authenticate, so CLEAR_LA right now */
2262 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2263 if (!clearlambox) {
2264 clrlaerr = 1;
2265 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2266 "%d:0226 Device Discovery "
2267 "completion error\n",
2268 phba->brd_no);
2269 phba->hba_state = LPFC_HBA_ERROR;
2270 break;
2271 }
2272
2273 phba->hba_state = LPFC_CLEAR_LA;
2274 lpfc_clear_la(phba, clearlambox);
2275 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2276 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2277 (MBX_NOWAIT | MBX_STOP_IOCB));
2278 if (rc == MBX_NOT_FINISHED) {
2279 mempool_free(clearlambox, phba->mbox_mem_pool);
2280 clrlaerr = 1;
2281 break;
2282 }
2283
2284 /* Setup and issue mailbox INITIALIZE LINK command */
2285 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2286 if (!initlinkmbox) {
2287 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2288 "%d:0226 Device Discovery "
2289 "completion error\n",
2290 phba->brd_no);
2291 phba->hba_state = LPFC_HBA_ERROR;
2292 break;
2293 }
2294
2295 lpfc_linkdown(phba);
2296 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2297 phba->cfg_link_speed);
2298 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2299 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2300 (MBX_NOWAIT | MBX_STOP_IOCB));
2301 if (rc == MBX_NOT_FINISHED)
2302 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2303
2304 break;
2305
2306 case LPFC_DISC_AUTH:
2307 /* Node Authentication timeout */
2308 lpfc_printf_log(phba,
2309 KERN_ERR,
2310 LOG_DISCOVERY,
2311 "%d:0227 Node Authentication timeout\n",
2312 phba->brd_no);
2313 lpfc_disc_flush_list(phba);
2314 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2315 if (!clearlambox) {
2316 clrlaerr = 1;
2317 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2318 "%d:0226 Device Discovery "
2319 "completion error\n",
2320 phba->brd_no);
2321 phba->hba_state = LPFC_HBA_ERROR;
2322 break;
2323 }
2324 phba->hba_state = LPFC_CLEAR_LA;
2325 lpfc_clear_la(phba, clearlambox);
2326 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2327 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2328 (MBX_NOWAIT | MBX_STOP_IOCB));
2329 if (rc == MBX_NOT_FINISHED) {
2330 mempool_free(clearlambox, phba->mbox_mem_pool);
2331 clrlaerr = 1;
2332 }
2333 break;
2334
2335 case LPFC_CLEAR_LA:
2336 /* CLEAR LA timeout */
2337 lpfc_printf_log(phba,
2338 KERN_ERR,
2339 LOG_DISCOVERY,
2340 "%d:0228 CLEAR LA timeout\n",
2341 phba->brd_no);
2342 clrlaerr = 1;
2343 break;
2344
2345 case LPFC_HBA_READY:
2346 if (phba->fc_flag & FC_RSCN_MODE) {
2347 lpfc_printf_log(phba,
2348 KERN_ERR,
2349 LOG_DISCOVERY,
2350 "%d:0231 RSCN timeout Data: x%x x%x\n",
2351 phba->brd_no,
2352 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2353
2354 /* Cleanup any outstanding ELS commands */
2355 lpfc_els_flush_cmd(phba);
2356
2357 lpfc_els_flush_rscn(phba);
2358 lpfc_disc_flush_list(phba);
2359 }
2360 break;
2361 }
2362
2363 if (clrlaerr) {
2364 lpfc_disc_flush_list(phba);
2365 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2366 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2367 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2368 phba->hba_state = LPFC_HBA_READY;
2369 }
2370
2371 return;
2372}
2373
2374static void
2375lpfc_nodev_timeout(unsigned long ptr)
2376{
2377 struct lpfc_hba *phba;
2378 struct lpfc_nodelist *ndlp;
2379 unsigned long iflag;
2380 struct lpfc_work_evt *evtp;
2381
2382 ndlp = (struct lpfc_nodelist *)ptr;
2383 phba = ndlp->nlp_phba;
2384 evtp = &ndlp->nodev_timeout_evt;
2385 spin_lock_irqsave(phba->host->host_lock, iflag);
2386
2387 if (!list_empty(&evtp->evt_listp)) {
2388 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2389 return;
2390 }
2391 evtp->evt_arg1 = ndlp;
2392 evtp->evt = LPFC_EVT_NODEV_TMO;
2393 list_add_tail(&evtp->evt_listp, &phba->work_list);
2394 if (phba->work_wait)
2395 wake_up(phba->work_wait);
2396
2397 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2398 return;
2399}
2400
2401
2402/*
2403 * This routine handles processing a NameServer REG_LOGIN mailbox
2404 * command upon completion. It is setup in the LPFC_MBOXQ
2405 * as the completion routine when the command is
2406 * handed off to the SLI layer.
2407 */
2408void
2409lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2410{
2411 struct lpfc_sli *psli;
2412 MAILBOX_t *mb;
2413 struct lpfc_dmabuf *mp;
2414 struct lpfc_nodelist *ndlp;
2415
2416 psli = &phba->sli;
2417 mb = &pmb->mb;
2418
2419 ndlp = (struct lpfc_nodelist *) pmb->context2;
2420 mp = (struct lpfc_dmabuf *) (pmb->context1);
2421
2422 pmb->context1 = NULL;
2423
2424 if (ndlp->nlp_rpi != 0)
2425 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
2426 ndlp->nlp_rpi = mb->un.varWords[0];
2427 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
2428 ndlp->nlp_type |= NLP_FABRIC;
2429 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2430 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2431
2432 /* Start issuing Fabric-Device Management Interface (FDMI)
2433 * command to 0xfffffa (FDMI well known port)
2434 */
2435 if (phba->cfg_fdmi_on == 1) {
2436 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2437 } else {
2438 /*
2439 * Delay issuing FDMI command if fdmi-on=2
2440 * (supporting RPA/hostnmae)
2441 */
2442 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2443 }
2444
2445 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2446 kfree(mp);
2447 mempool_free( pmb, phba->mbox_mem_pool);
2448
2449 return;
2450}
2451
2452/*
2453 * This routine looks up the ndlp hash
2454 * table for the given RPI. If rpi found
2455 * it return the node list pointer
2456 * else return 0.
2457 */
2458struct lpfc_nodelist *
2459lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2460{
2461 struct lpfc_nodelist *ret;
2462
2463 ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2464 while ((ret != 0) && (ret->nlp_rpi != rpi)) {
2465 ret = ret->nlp_rpi_hash_next;
2466 }
2467 return ret;
2468}
2469
2470/*
2471 * This routine looks up the ndlp hash table for the
2472 * given RPI. If rpi found it return the node list
2473 * pointer else return 0 after deleting the entry
2474 * from hash table.
2475 */
2476struct lpfc_nodelist *
2477lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi)
2478{
2479 struct lpfc_nodelist *ret, *temp;;
2480
2481 ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2482 if (ret == 0)
2483 return NULL;
2484
2485 if (ret->nlp_rpi == rpi) {
2486 phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] =
2487 ret->nlp_rpi_hash_next;
2488 ret->nlp_rpi_hash_next = NULL;
2489 return ret;
2490 }
2491
2492 while ((ret->nlp_rpi_hash_next != 0) &&
2493 (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) {
2494 ret = ret->nlp_rpi_hash_next;
2495 }
2496
2497 if (ret->nlp_rpi_hash_next != 0) {
2498 temp = ret->nlp_rpi_hash_next;
2499 ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next;
2500 temp->nlp_rpi_hash_next = NULL;
2501 return temp;
2502 } else {
2503 return NULL;
2504 }
2505}
2506
2507/*
2508 * This routine adds the node list entry to the
2509 * ndlp hash table.
2510 */
2511void
2512lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2513 uint16_t rpi)
2514{
2515
2516 uint32_t index;
2517
2518 index = LPFC_RPI_HASH_FUNC(rpi);
2519 ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index];
2520 phba->fc_nlplookup[index] = ndlp;
2521 return;
2522}
2523
2524void
2525lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2526 uint32_t did)
2527{
2528 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2529 INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2530 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2531 init_timer(&ndlp->nlp_tmofunc);
2532 ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2533 ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2534 init_timer(&ndlp->nlp_delayfunc);
2535 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2536 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2537 ndlp->nlp_DID = did;
2538 ndlp->nlp_phba = phba;
2539 ndlp->nlp_sid = NLP_NO_SID;
2540 return;
2541}
Linux kernel - Deliverables
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