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[SCSI] lpfc 8.1.12 : Rework offline path to solve HBA reset issues
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/kthread.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
31
32 #include "lpfc_hw.h"
33 #include "lpfc_disc.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_scsi.h"
36 #include "lpfc.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_crtn.h"
39
40 /* AlpaArray for assignment of scsid for scan-down and bind_method */
41 static uint8_t lpfcAlpaArray[] = {
42 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
43 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
44 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
45 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
46 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
47 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
48 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
49 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
50 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
51 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
52 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
53 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
54 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
55 };
56
57 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
58
59 void
60 lpfc_terminate_rport_io(struct fc_rport *rport)
61 {
62 struct lpfc_rport_data *rdata;
63 struct lpfc_nodelist * ndlp;
64 struct lpfc_hba *phba;
65
66 rdata = rport->dd_data;
67 ndlp = rdata->pnode;
68
69 if (!ndlp) {
70 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
71 printk(KERN_ERR "Cannot find remote node"
72 " to terminate I/O Data x%x\n",
73 rport->port_id);
74 return;
75 }
76
77 phba = ndlp->nlp_phba;
78
79 spin_lock_irq(phba->host->host_lock);
80 if (ndlp->nlp_sid != NLP_NO_SID) {
81 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
82 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
83 }
84 spin_unlock_irq(phba->host->host_lock);
85
86 return;
87 }
88
89 /*
90 * This function will be called when dev_loss_tmo fire.
91 */
92 void
93 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
94 {
95 struct lpfc_rport_data *rdata;
96 struct lpfc_nodelist * ndlp;
97 uint8_t *name;
98 int warn_on = 0;
99 struct lpfc_hba *phba;
100
101 rdata = rport->dd_data;
102 ndlp = rdata->pnode;
103
104 if (!ndlp) {
105 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
106 printk(KERN_ERR "Cannot find remote node"
107 " for rport in dev_loss_tmo_callbk x%x\n",
108 rport->port_id);
109 return;
110 }
111
112 name = (uint8_t *)&ndlp->nlp_portname;
113 phba = ndlp->nlp_phba;
114
115 spin_lock_irq(phba->host->host_lock);
116
117 if (ndlp->nlp_sid != NLP_NO_SID) {
118 warn_on = 1;
119 /* flush the target */
120 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
121 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
122 }
123 if (phba->fc_flag & FC_UNLOADING)
124 warn_on = 0;
125
126 spin_unlock_irq(phba->host->host_lock);
127
128 if (warn_on) {
129 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
130 "%d:0203 Devloss timeout on "
131 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
132 "NPort x%x Data: x%x x%x x%x\n",
133 phba->brd_no,
134 *name, *(name+1), *(name+2), *(name+3),
135 *(name+4), *(name+5), *(name+6), *(name+7),
136 ndlp->nlp_DID, ndlp->nlp_flag,
137 ndlp->nlp_state, ndlp->nlp_rpi);
138 } else {
139 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
140 "%d:0204 Devloss timeout on "
141 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
142 "NPort x%x Data: x%x x%x x%x\n",
143 phba->brd_no,
144 *name, *(name+1), *(name+2), *(name+3),
145 *(name+4), *(name+5), *(name+6), *(name+7),
146 ndlp->nlp_DID, ndlp->nlp_flag,
147 ndlp->nlp_state, ndlp->nlp_rpi);
148 }
149
150 if (!(phba->fc_flag & FC_UNLOADING) &&
151 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
152 !(ndlp->nlp_flag & NLP_NPR_2B_DISC))
153 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
154 else {
155 rdata->pnode = NULL;
156 ndlp->rport = NULL;
157 }
158
159 return;
160 }
161
162 static void
163 lpfc_work_list_done(struct lpfc_hba * phba)
164 {
165 struct lpfc_work_evt *evtp = NULL;
166 struct lpfc_nodelist *ndlp;
167 int free_evt;
168
169 spin_lock_irq(phba->host->host_lock);
170 while(!list_empty(&phba->work_list)) {
171 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
172 evt_listp);
173 spin_unlock_irq(phba->host->host_lock);
174 free_evt = 1;
175 switch (evtp->evt) {
176 case LPFC_EVT_ELS_RETRY:
177 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
178 lpfc_els_retry_delay_handler(ndlp);
179 free_evt = 0;
180 break;
181 case LPFC_EVT_ONLINE:
182 if (phba->hba_state < LPFC_LINK_DOWN)
183 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
184 else
185 *(int *)(evtp->evt_arg1) = 0;
186 complete((struct completion *)(evtp->evt_arg2));
187 break;
188 case LPFC_EVT_OFFLINE_PREP:
189 if (phba->hba_state >= LPFC_LINK_DOWN)
190 lpfc_offline_prep(phba);
191 *(int *)(evtp->evt_arg1) = 0;
192 complete((struct completion *)(evtp->evt_arg2));
193 break;
194 case LPFC_EVT_OFFLINE:
195 lpfc_offline(phba);
196 lpfc_sli_brdrestart(phba);
197 *(int *)(evtp->evt_arg1) =
198 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
199 lpfc_unblock_mgmt_io(phba);
200 complete((struct completion *)(evtp->evt_arg2));
201 break;
202 case LPFC_EVT_WARM_START:
203 lpfc_offline(phba);
204 lpfc_reset_barrier(phba);
205 lpfc_sli_brdreset(phba);
206 lpfc_hba_down_post(phba);
207 *(int *)(evtp->evt_arg1) =
208 lpfc_sli_brdready(phba, HS_MBRDY);
209 lpfc_unblock_mgmt_io(phba);
210 complete((struct completion *)(evtp->evt_arg2));
211 break;
212 case LPFC_EVT_KILL:
213 lpfc_offline(phba);
214 *(int *)(evtp->evt_arg1)
215 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
216 lpfc_unblock_mgmt_io(phba);
217 complete((struct completion *)(evtp->evt_arg2));
218 break;
219 }
220 if (free_evt)
221 kfree(evtp);
222 spin_lock_irq(phba->host->host_lock);
223 }
224 spin_unlock_irq(phba->host->host_lock);
225
226 }
227
228 static void
229 lpfc_work_done(struct lpfc_hba * phba)
230 {
231 struct lpfc_sli_ring *pring;
232 int i;
233 uint32_t ha_copy;
234 uint32_t control;
235 uint32_t work_hba_events;
236
237 spin_lock_irq(phba->host->host_lock);
238 ha_copy = phba->work_ha;
239 phba->work_ha = 0;
240 work_hba_events=phba->work_hba_events;
241 spin_unlock_irq(phba->host->host_lock);
242
243 if (ha_copy & HA_ERATT)
244 lpfc_handle_eratt(phba);
245
246 if (ha_copy & HA_MBATT)
247 lpfc_sli_handle_mb_event(phba);
248
249 if (ha_copy & HA_LATT)
250 lpfc_handle_latt(phba);
251
252 if (work_hba_events & WORKER_DISC_TMO)
253 lpfc_disc_timeout_handler(phba);
254
255 if (work_hba_events & WORKER_ELS_TMO)
256 lpfc_els_timeout_handler(phba);
257
258 if (work_hba_events & WORKER_MBOX_TMO)
259 lpfc_mbox_timeout_handler(phba);
260
261 if (work_hba_events & WORKER_FDMI_TMO)
262 lpfc_fdmi_tmo_handler(phba);
263
264 spin_lock_irq(phba->host->host_lock);
265 phba->work_hba_events &= ~work_hba_events;
266 spin_unlock_irq(phba->host->host_lock);
267
268 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
269 pring = &phba->sli.ring[i];
270 if ((ha_copy & HA_RXATT)
271 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
272 if (pring->flag & LPFC_STOP_IOCB_MASK) {
273 pring->flag |= LPFC_DEFERRED_RING_EVENT;
274 } else {
275 lpfc_sli_handle_slow_ring_event(phba, pring,
276 (ha_copy &
277 HA_RXMASK));
278 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
279 }
280 /*
281 * Turn on Ring interrupts
282 */
283 spin_lock_irq(phba->host->host_lock);
284 control = readl(phba->HCregaddr);
285 control |= (HC_R0INT_ENA << i);
286 writel(control, phba->HCregaddr);
287 readl(phba->HCregaddr); /* flush */
288 spin_unlock_irq(phba->host->host_lock);
289 }
290 }
291
292 lpfc_work_list_done (phba);
293
294 }
295
296 static int
297 check_work_wait_done(struct lpfc_hba *phba) {
298
299 spin_lock_irq(phba->host->host_lock);
300 if (phba->work_ha ||
301 phba->work_hba_events ||
302 (!list_empty(&phba->work_list)) ||
303 kthread_should_stop()) {
304 spin_unlock_irq(phba->host->host_lock);
305 return 1;
306 } else {
307 spin_unlock_irq(phba->host->host_lock);
308 return 0;
309 }
310 }
311
312 int
313 lpfc_do_work(void *p)
314 {
315 struct lpfc_hba *phba = p;
316 int rc;
317 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
318
319 set_user_nice(current, -20);
320 phba->work_wait = &work_waitq;
321
322 while (1) {
323
324 rc = wait_event_interruptible(work_waitq,
325 check_work_wait_done(phba));
326 BUG_ON(rc);
327
328 if (kthread_should_stop())
329 break;
330
331 lpfc_work_done(phba);
332
333 }
334 phba->work_wait = NULL;
335 return 0;
336 }
337
338 /*
339 * This is only called to handle FC worker events. Since this a rare
340 * occurance, we allocate a struct lpfc_work_evt structure here instead of
341 * embedding it in the IOCB.
342 */
343 int
344 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
345 uint32_t evt)
346 {
347 struct lpfc_work_evt *evtp;
348
349 /*
350 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
351 * be queued to worker thread for processing
352 */
353 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
354 if (!evtp)
355 return 0;
356
357 evtp->evt_arg1 = arg1;
358 evtp->evt_arg2 = arg2;
359 evtp->evt = evt;
360
361 spin_lock_irq(phba->host->host_lock);
362 list_add_tail(&evtp->evt_listp, &phba->work_list);
363 if (phba->work_wait)
364 wake_up(phba->work_wait);
365 spin_unlock_irq(phba->host->host_lock);
366
367 return 1;
368 }
369
370 int
371 lpfc_linkdown(struct lpfc_hba * phba)
372 {
373 struct lpfc_sli *psli;
374 struct lpfc_nodelist *ndlp, *next_ndlp;
375 struct list_head *listp, *node_list[7];
376 LPFC_MBOXQ_t *mb;
377 int rc, i;
378
379 psli = &phba->sli;
380 /* sysfs or selective reset may call this routine to clean up */
381 if (phba->hba_state >= LPFC_LINK_DOWN) {
382 if (phba->hba_state == LPFC_LINK_DOWN)
383 return 0;
384
385 spin_lock_irq(phba->host->host_lock);
386 phba->hba_state = LPFC_LINK_DOWN;
387 spin_unlock_irq(phba->host->host_lock);
388 }
389
390 fc_host_post_event(phba->host, fc_get_event_number(),
391 FCH_EVT_LINKDOWN, 0);
392
393 /* Clean up any firmware default rpi's */
394 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
395 lpfc_unreg_did(phba, 0xffffffff, mb);
396 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
397 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
398 == MBX_NOT_FINISHED) {
399 mempool_free( mb, phba->mbox_mem_pool);
400 }
401 }
402
403 /* Cleanup any outstanding RSCN activity */
404 lpfc_els_flush_rscn(phba);
405
406 /* Cleanup any outstanding ELS commands */
407 lpfc_els_flush_cmd(phba);
408
409 /* Issue a LINK DOWN event to all nodes */
410 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
411 node_list[1] = &phba->fc_nlpmap_list;
412 node_list[2] = &phba->fc_nlpunmap_list;
413 node_list[3] = &phba->fc_prli_list;
414 node_list[4] = &phba->fc_reglogin_list;
415 node_list[5] = &phba->fc_adisc_list;
416 node_list[6] = &phba->fc_plogi_list;
417 for (i = 0; i < 7; i++) {
418 listp = node_list[i];
419 if (list_empty(listp))
420 continue;
421
422 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
423
424 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
425 NLP_EVT_DEVICE_RECOVERY);
426
427 }
428 }
429
430 /* free any ndlp's on unused list */
431 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
432 nlp_listp) {
433 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
434 }
435
436 /* Setup myDID for link up if we are in pt2pt mode */
437 if (phba->fc_flag & FC_PT2PT) {
438 phba->fc_myDID = 0;
439 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
440 lpfc_config_link(phba, mb);
441 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
442 if (lpfc_sli_issue_mbox
443 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
444 == MBX_NOT_FINISHED) {
445 mempool_free( mb, phba->mbox_mem_pool);
446 }
447 }
448 spin_lock_irq(phba->host->host_lock);
449 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
450 spin_unlock_irq(phba->host->host_lock);
451 }
452 spin_lock_irq(phba->host->host_lock);
453 phba->fc_flag &= ~FC_LBIT;
454 spin_unlock_irq(phba->host->host_lock);
455
456 /* Turn off discovery timer if its running */
457 lpfc_can_disctmo(phba);
458
459 /* Must process IOCBs on all rings to handle ABORTed I/Os */
460 return 0;
461 }
462
463 static int
464 lpfc_linkup(struct lpfc_hba * phba)
465 {
466 struct lpfc_nodelist *ndlp, *next_ndlp;
467 struct list_head *listp, *node_list[7];
468 int i;
469
470 fc_host_post_event(phba->host, fc_get_event_number(),
471 FCH_EVT_LINKUP, 0);
472
473 spin_lock_irq(phba->host->host_lock);
474 phba->hba_state = LPFC_LINK_UP;
475 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
476 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
477 phba->fc_flag |= FC_NDISC_ACTIVE;
478 phba->fc_ns_retry = 0;
479 spin_unlock_irq(phba->host->host_lock);
480
481
482 node_list[0] = &phba->fc_plogi_list;
483 node_list[1] = &phba->fc_adisc_list;
484 node_list[2] = &phba->fc_reglogin_list;
485 node_list[3] = &phba->fc_prli_list;
486 node_list[4] = &phba->fc_nlpunmap_list;
487 node_list[5] = &phba->fc_nlpmap_list;
488 node_list[6] = &phba->fc_npr_list;
489 for (i = 0; i < 7; i++) {
490 listp = node_list[i];
491 if (list_empty(listp))
492 continue;
493
494 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
495 if (phba->fc_flag & FC_LBIT) {
496 if (ndlp->nlp_type & NLP_FABRIC) {
497 /* On Linkup its safe to clean up the
498 * ndlp from Fabric connections.
499 */
500 lpfc_nlp_list(phba, ndlp,
501 NLP_UNUSED_LIST);
502 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
503 /* Fail outstanding IO now since device
504 * is marked for PLOGI.
505 */
506 lpfc_unreg_rpi(phba, ndlp);
507 }
508 }
509 }
510 }
511
512 /* free any ndlp's on unused list */
513 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
514 nlp_listp) {
515 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
516 }
517
518 return 0;
519 }
520
521 /*
522 * This routine handles processing a CLEAR_LA mailbox
523 * command upon completion. It is setup in the LPFC_MBOXQ
524 * as the completion routine when the command is
525 * handed off to the SLI layer.
526 */
527 void
528 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
529 {
530 struct lpfc_sli *psli;
531 MAILBOX_t *mb;
532 uint32_t control;
533
534 psli = &phba->sli;
535 mb = &pmb->mb;
536 /* Since we don't do discovery right now, turn these off here */
537 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
538 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
539 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
540
541 /* Check for error */
542 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
543 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
544 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
545 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
546 "state x%x\n",
547 phba->brd_no, mb->mbxStatus, phba->hba_state);
548
549 phba->hba_state = LPFC_HBA_ERROR;
550 goto out;
551 }
552
553 if (phba->fc_flag & FC_ABORT_DISCOVERY)
554 goto out;
555
556 phba->num_disc_nodes = 0;
557 /* go thru NPR list and issue ELS PLOGIs */
558 if (phba->fc_npr_cnt) {
559 lpfc_els_disc_plogi(phba);
560 }
561
562 if (!phba->num_disc_nodes) {
563 spin_lock_irq(phba->host->host_lock);
564 phba->fc_flag &= ~FC_NDISC_ACTIVE;
565 spin_unlock_irq(phba->host->host_lock);
566 }
567
568 phba->hba_state = LPFC_HBA_READY;
569
570 out:
571 /* Device Discovery completes */
572 lpfc_printf_log(phba,
573 KERN_INFO,
574 LOG_DISCOVERY,
575 "%d:0225 Device Discovery completes\n",
576 phba->brd_no);
577
578 mempool_free( pmb, phba->mbox_mem_pool);
579
580 spin_lock_irq(phba->host->host_lock);
581 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
582 if (phba->fc_flag & FC_ESTABLISH_LINK) {
583 phba->fc_flag &= ~FC_ESTABLISH_LINK;
584 }
585 spin_unlock_irq(phba->host->host_lock);
586
587 del_timer_sync(&phba->fc_estabtmo);
588
589 lpfc_can_disctmo(phba);
590
591 /* turn on Link Attention interrupts */
592 spin_lock_irq(phba->host->host_lock);
593 psli->sli_flag |= LPFC_PROCESS_LA;
594 control = readl(phba->HCregaddr);
595 control |= HC_LAINT_ENA;
596 writel(control, phba->HCregaddr);
597 readl(phba->HCregaddr); /* flush */
598 spin_unlock_irq(phba->host->host_lock);
599
600 return;
601 }
602
603 static void
604 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
605 {
606 struct lpfc_sli *psli = &phba->sli;
607 int rc;
608
609 if (pmb->mb.mbxStatus)
610 goto out;
611
612 mempool_free(pmb, phba->mbox_mem_pool);
613
614 if (phba->fc_topology == TOPOLOGY_LOOP &&
615 phba->fc_flag & FC_PUBLIC_LOOP &&
616 !(phba->fc_flag & FC_LBIT)) {
617 /* Need to wait for FAN - use discovery timer
618 * for timeout. hba_state is identically
619 * LPFC_LOCAL_CFG_LINK while waiting for FAN
620 */
621 lpfc_set_disctmo(phba);
622 return;
623 }
624
625 /* Start discovery by sending a FLOGI. hba_state is identically
626 * LPFC_FLOGI while waiting for FLOGI cmpl
627 */
628 phba->hba_state = LPFC_FLOGI;
629 lpfc_set_disctmo(phba);
630 lpfc_initial_flogi(phba);
631 return;
632
633 out:
634 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
635 "%d:0306 CONFIG_LINK mbxStatus error x%x "
636 "HBA state x%x\n",
637 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
638
639 lpfc_linkdown(phba);
640
641 phba->hba_state = LPFC_HBA_ERROR;
642
643 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
644 "%d:0200 CONFIG_LINK bad hba state x%x\n",
645 phba->brd_no, phba->hba_state);
646
647 lpfc_clear_la(phba, pmb);
648 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
649 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
650 if (rc == MBX_NOT_FINISHED) {
651 mempool_free(pmb, phba->mbox_mem_pool);
652 lpfc_disc_flush_list(phba);
653 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
654 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
655 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
656 phba->hba_state = LPFC_HBA_READY;
657 }
658 return;
659 }
660
661 static void
662 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
663 {
664 struct lpfc_sli *psli = &phba->sli;
665 MAILBOX_t *mb = &pmb->mb;
666 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
667
668
669 /* Check for error */
670 if (mb->mbxStatus) {
671 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
672 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
673 "%d:0319 READ_SPARAM mbxStatus error x%x "
674 "hba state x%x>\n",
675 phba->brd_no, mb->mbxStatus, phba->hba_state);
676
677 lpfc_linkdown(phba);
678 phba->hba_state = LPFC_HBA_ERROR;
679 goto out;
680 }
681
682 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
683 sizeof (struct serv_parm));
684 if (phba->cfg_soft_wwnn)
685 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
686 if (phba->cfg_soft_wwpn)
687 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
688 memcpy((uint8_t *) & phba->fc_nodename,
689 (uint8_t *) & phba->fc_sparam.nodeName,
690 sizeof (struct lpfc_name));
691 memcpy((uint8_t *) & phba->fc_portname,
692 (uint8_t *) & phba->fc_sparam.portName,
693 sizeof (struct lpfc_name));
694 lpfc_mbuf_free(phba, mp->virt, mp->phys);
695 kfree(mp);
696 mempool_free( pmb, phba->mbox_mem_pool);
697 return;
698
699 out:
700 pmb->context1 = NULL;
701 lpfc_mbuf_free(phba, mp->virt, mp->phys);
702 kfree(mp);
703 if (phba->hba_state != LPFC_CLEAR_LA) {
704 lpfc_clear_la(phba, pmb);
705 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
706 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
707 == MBX_NOT_FINISHED) {
708 mempool_free( pmb, phba->mbox_mem_pool);
709 lpfc_disc_flush_list(phba);
710 psli->ring[(psli->extra_ring)].flag &=
711 ~LPFC_STOP_IOCB_EVENT;
712 psli->ring[(psli->fcp_ring)].flag &=
713 ~LPFC_STOP_IOCB_EVENT;
714 psli->ring[(psli->next_ring)].flag &=
715 ~LPFC_STOP_IOCB_EVENT;
716 phba->hba_state = LPFC_HBA_READY;
717 }
718 } else {
719 mempool_free( pmb, phba->mbox_mem_pool);
720 }
721 return;
722 }
723
724 static void
725 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
726 {
727 int i;
728 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
729 struct lpfc_dmabuf *mp;
730 int rc;
731
732 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
733 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
734
735 spin_lock_irq(phba->host->host_lock);
736 switch (la->UlnkSpeed) {
737 case LA_1GHZ_LINK:
738 phba->fc_linkspeed = LA_1GHZ_LINK;
739 break;
740 case LA_2GHZ_LINK:
741 phba->fc_linkspeed = LA_2GHZ_LINK;
742 break;
743 case LA_4GHZ_LINK:
744 phba->fc_linkspeed = LA_4GHZ_LINK;
745 break;
746 default:
747 phba->fc_linkspeed = LA_UNKNW_LINK;
748 break;
749 }
750
751 phba->fc_topology = la->topology;
752
753 if (phba->fc_topology == TOPOLOGY_LOOP) {
754 /* Get Loop Map information */
755
756 if (la->il)
757 phba->fc_flag |= FC_LBIT;
758
759 phba->fc_myDID = la->granted_AL_PA;
760 i = la->un.lilpBde64.tus.f.bdeSize;
761
762 if (i == 0) {
763 phba->alpa_map[0] = 0;
764 } else {
765 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
766 int numalpa, j, k;
767 union {
768 uint8_t pamap[16];
769 struct {
770 uint32_t wd1;
771 uint32_t wd2;
772 uint32_t wd3;
773 uint32_t wd4;
774 } pa;
775 } un;
776 numalpa = phba->alpa_map[0];
777 j = 0;
778 while (j < numalpa) {
779 memset(un.pamap, 0, 16);
780 for (k = 1; j < numalpa; k++) {
781 un.pamap[k - 1] =
782 phba->alpa_map[j + 1];
783 j++;
784 if (k == 16)
785 break;
786 }
787 /* Link Up Event ALPA map */
788 lpfc_printf_log(phba,
789 KERN_WARNING,
790 LOG_LINK_EVENT,
791 "%d:1304 Link Up Event "
792 "ALPA map Data: x%x "
793 "x%x x%x x%x\n",
794 phba->brd_no,
795 un.pa.wd1, un.pa.wd2,
796 un.pa.wd3, un.pa.wd4);
797 }
798 }
799 }
800 } else {
801 phba->fc_myDID = phba->fc_pref_DID;
802 phba->fc_flag |= FC_LBIT;
803 }
804 spin_unlock_irq(phba->host->host_lock);
805
806 lpfc_linkup(phba);
807 if (sparam_mbox) {
808 lpfc_read_sparam(phba, sparam_mbox);
809 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
810 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
811 (MBX_NOWAIT | MBX_STOP_IOCB));
812 if (rc == MBX_NOT_FINISHED) {
813 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
814 lpfc_mbuf_free(phba, mp->virt, mp->phys);
815 kfree(mp);
816 mempool_free(sparam_mbox, phba->mbox_mem_pool);
817 if (cfglink_mbox)
818 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
819 return;
820 }
821 }
822
823 if (cfglink_mbox) {
824 phba->hba_state = LPFC_LOCAL_CFG_LINK;
825 lpfc_config_link(phba, cfglink_mbox);
826 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
827 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
828 (MBX_NOWAIT | MBX_STOP_IOCB));
829 if (rc == MBX_NOT_FINISHED)
830 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
831 }
832 }
833
834 static void
835 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
836 uint32_t control;
837 struct lpfc_sli *psli = &phba->sli;
838
839 lpfc_linkdown(phba);
840
841 /* turn on Link Attention interrupts - no CLEAR_LA needed */
842 spin_lock_irq(phba->host->host_lock);
843 psli->sli_flag |= LPFC_PROCESS_LA;
844 control = readl(phba->HCregaddr);
845 control |= HC_LAINT_ENA;
846 writel(control, phba->HCregaddr);
847 readl(phba->HCregaddr); /* flush */
848 spin_unlock_irq(phba->host->host_lock);
849 }
850
851 /*
852 * This routine handles processing a READ_LA mailbox
853 * command upon completion. It is setup in the LPFC_MBOXQ
854 * as the completion routine when the command is
855 * handed off to the SLI layer.
856 */
857 void
858 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
859 {
860 READ_LA_VAR *la;
861 MAILBOX_t *mb = &pmb->mb;
862 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
863
864 /* Check for error */
865 if (mb->mbxStatus) {
866 lpfc_printf_log(phba,
867 KERN_INFO,
868 LOG_LINK_EVENT,
869 "%d:1307 READ_LA mbox error x%x state x%x\n",
870 phba->brd_no,
871 mb->mbxStatus, phba->hba_state);
872 lpfc_mbx_issue_link_down(phba);
873 phba->hba_state = LPFC_HBA_ERROR;
874 goto lpfc_mbx_cmpl_read_la_free_mbuf;
875 }
876
877 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
878
879 memcpy(&phba->alpa_map[0], mp->virt, 128);
880
881 spin_lock_irq(phba->host->host_lock);
882 if (la->pb)
883 phba->fc_flag |= FC_BYPASSED_MODE;
884 else
885 phba->fc_flag &= ~FC_BYPASSED_MODE;
886 spin_unlock_irq(phba->host->host_lock);
887
888 if (((phba->fc_eventTag + 1) < la->eventTag) ||
889 (phba->fc_eventTag == la->eventTag)) {
890 phba->fc_stat.LinkMultiEvent++;
891 if (la->attType == AT_LINK_UP) {
892 if (phba->fc_eventTag != 0)
893 lpfc_linkdown(phba);
894 }
895 }
896
897 phba->fc_eventTag = la->eventTag;
898
899 if (la->attType == AT_LINK_UP) {
900 phba->fc_stat.LinkUp++;
901 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
902 "%d:1303 Link Up Event x%x received "
903 "Data: x%x x%x x%x x%x\n",
904 phba->brd_no, la->eventTag, phba->fc_eventTag,
905 la->granted_AL_PA, la->UlnkSpeed,
906 phba->alpa_map[0]);
907 lpfc_mbx_process_link_up(phba, la);
908 } else {
909 phba->fc_stat.LinkDown++;
910 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
911 "%d:1305 Link Down Event x%x received "
912 "Data: x%x x%x x%x\n",
913 phba->brd_no, la->eventTag, phba->fc_eventTag,
914 phba->hba_state, phba->fc_flag);
915 lpfc_mbx_issue_link_down(phba);
916 }
917
918 lpfc_mbx_cmpl_read_la_free_mbuf:
919 lpfc_mbuf_free(phba, mp->virt, mp->phys);
920 kfree(mp);
921 mempool_free(pmb, phba->mbox_mem_pool);
922 return;
923 }
924
925 /*
926 * This routine handles processing a REG_LOGIN mailbox
927 * command upon completion. It is setup in the LPFC_MBOXQ
928 * as the completion routine when the command is
929 * handed off to the SLI layer.
930 */
931 void
932 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
933 {
934 struct lpfc_sli *psli;
935 MAILBOX_t *mb;
936 struct lpfc_dmabuf *mp;
937 struct lpfc_nodelist *ndlp;
938
939 psli = &phba->sli;
940 mb = &pmb->mb;
941
942 ndlp = (struct lpfc_nodelist *) pmb->context2;
943 mp = (struct lpfc_dmabuf *) (pmb->context1);
944
945 pmb->context1 = NULL;
946
947 /* Good status, call state machine */
948 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
949 lpfc_mbuf_free(phba, mp->virt, mp->phys);
950 kfree(mp);
951 mempool_free( pmb, phba->mbox_mem_pool);
952
953 return;
954 }
955
956 /*
957 * This routine handles processing a Fabric REG_LOGIN mailbox
958 * command upon completion. It is setup in the LPFC_MBOXQ
959 * as the completion routine when the command is
960 * handed off to the SLI layer.
961 */
962 void
963 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
964 {
965 struct lpfc_sli *psli;
966 MAILBOX_t *mb;
967 struct lpfc_dmabuf *mp;
968 struct lpfc_nodelist *ndlp;
969 struct lpfc_nodelist *ndlp_fdmi;
970
971
972 psli = &phba->sli;
973 mb = &pmb->mb;
974
975 ndlp = (struct lpfc_nodelist *) pmb->context2;
976 mp = (struct lpfc_dmabuf *) (pmb->context1);
977
978 if (mb->mbxStatus) {
979 lpfc_mbuf_free(phba, mp->virt, mp->phys);
980 kfree(mp);
981 mempool_free( pmb, phba->mbox_mem_pool);
982 mempool_free( ndlp, phba->nlp_mem_pool);
983
984 /* FLOGI failed, so just use loop map to make discovery list */
985 lpfc_disc_list_loopmap(phba);
986
987 /* Start discovery */
988 lpfc_disc_start(phba);
989 return;
990 }
991
992 pmb->context1 = NULL;
993
994 ndlp->nlp_rpi = mb->un.varWords[0];
995 ndlp->nlp_type |= NLP_FABRIC;
996 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
997 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
998
999 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
1000 /* This NPort has been assigned an NPort_ID by the fabric as a
1001 * result of the completed fabric login. Issue a State Change
1002 * Registration (SCR) ELS request to the fabric controller
1003 * (SCR_DID) so that this NPort gets RSCN events from the
1004 * fabric.
1005 */
1006 lpfc_issue_els_scr(phba, SCR_DID, 0);
1007
1008 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
1009 if (!ndlp) {
1010 /* Allocate a new node instance. If the pool is empty,
1011 * start the discovery process and skip the Nameserver
1012 * login process. This is attempted again later on.
1013 * Otherwise, issue a Port Login (PLOGI) to NameServer.
1014 */
1015 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1016 if (!ndlp) {
1017 lpfc_disc_start(phba);
1018 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1019 kfree(mp);
1020 mempool_free( pmb, phba->mbox_mem_pool);
1021 return;
1022 } else {
1023 lpfc_nlp_init(phba, ndlp, NameServer_DID);
1024 ndlp->nlp_type |= NLP_FABRIC;
1025 }
1026 }
1027 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1028 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1029 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
1030 if (phba->cfg_fdmi_on) {
1031 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
1032 GFP_KERNEL);
1033 if (ndlp_fdmi) {
1034 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
1035 ndlp_fdmi->nlp_type |= NLP_FABRIC;
1036 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
1037 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
1038 }
1039 }
1040 }
1041
1042 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1043 kfree(mp);
1044 mempool_free( pmb, phba->mbox_mem_pool);
1045 return;
1046 }
1047
1048 /*
1049 * This routine handles processing a NameServer REG_LOGIN mailbox
1050 * command upon completion. It is setup in the LPFC_MBOXQ
1051 * as the completion routine when the command is
1052 * handed off to the SLI layer.
1053 */
1054 void
1055 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1056 {
1057 struct lpfc_sli *psli;
1058 MAILBOX_t *mb;
1059 struct lpfc_dmabuf *mp;
1060 struct lpfc_nodelist *ndlp;
1061
1062 psli = &phba->sli;
1063 mb = &pmb->mb;
1064
1065 ndlp = (struct lpfc_nodelist *) pmb->context2;
1066 mp = (struct lpfc_dmabuf *) (pmb->context1);
1067
1068 if (mb->mbxStatus) {
1069 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1070 kfree(mp);
1071 mempool_free( pmb, phba->mbox_mem_pool);
1072 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1073
1074 /* RegLogin failed, so just use loop map to make discovery
1075 list */
1076 lpfc_disc_list_loopmap(phba);
1077
1078 /* Start discovery */
1079 lpfc_disc_start(phba);
1080 return;
1081 }
1082
1083 pmb->context1 = NULL;
1084
1085 ndlp->nlp_rpi = mb->un.varWords[0];
1086 ndlp->nlp_type |= NLP_FABRIC;
1087 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1088 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1089
1090 if (phba->hba_state < LPFC_HBA_READY) {
1091 /* Link up discovery requires Fabrib registration. */
1092 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1093 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1094 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1095 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
1096 }
1097
1098 phba->fc_ns_retry = 0;
1099 /* Good status, issue CT Request to NameServer */
1100 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1101 /* Cannot issue NameServer Query, so finish up discovery */
1102 lpfc_disc_start(phba);
1103 }
1104
1105 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1106 kfree(mp);
1107 mempool_free( pmb, phba->mbox_mem_pool);
1108
1109 return;
1110 }
1111
1112 static void
1113 lpfc_register_remote_port(struct lpfc_hba * phba,
1114 struct lpfc_nodelist * ndlp)
1115 {
1116 struct fc_rport *rport;
1117 struct lpfc_rport_data *rdata;
1118 struct fc_rport_identifiers rport_ids;
1119
1120 /* Remote port has reappeared. Re-register w/ FC transport */
1121 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1122 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1123 rport_ids.port_id = ndlp->nlp_DID;
1124 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1125
1126 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1127 if (!rport) {
1128 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1129 "Warning: fc_remote_port_add failed\n");
1130 return;
1131 }
1132
1133 /* initialize static port data */
1134 rport->maxframe_size = ndlp->nlp_maxframe;
1135 rport->supported_classes = ndlp->nlp_class_sup;
1136 rdata = rport->dd_data;
1137 rdata->pnode = ndlp;
1138
1139 if (ndlp->nlp_type & NLP_FCP_TARGET)
1140 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1141 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1142 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1143
1144
1145 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1146 fc_remote_port_rolechg(rport, rport_ids.roles);
1147
1148 if ((rport->scsi_target_id != -1) &&
1149 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1150 ndlp->nlp_sid = rport->scsi_target_id;
1151 }
1152
1153 return;
1154 }
1155
1156 static void
1157 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1158 struct lpfc_nodelist * ndlp)
1159 {
1160 struct fc_rport *rport = ndlp->rport;
1161 struct lpfc_rport_data *rdata = rport->dd_data;
1162
1163 if (rport->scsi_target_id == -1) {
1164 ndlp->rport = NULL;
1165 rdata->pnode = NULL;
1166 }
1167
1168 fc_remote_port_delete(rport);
1169
1170 return;
1171 }
1172
1173 int
1174 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1175 {
1176 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1177 struct lpfc_sli *psli;
1178
1179 psli = &phba->sli;
1180 /* Sanity check to ensure we are not moving to / from the same list */
1181 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1182 if (list != NLP_NO_LIST)
1183 return 0;
1184
1185 spin_lock_irq(phba->host->host_lock);
1186 switch (nlp->nlp_flag & NLP_LIST_MASK) {
1187 case NLP_NO_LIST: /* Not on any list */
1188 break;
1189 case NLP_UNUSED_LIST:
1190 phba->fc_unused_cnt--;
1191 list_del(&nlp->nlp_listp);
1192 break;
1193 case NLP_PLOGI_LIST:
1194 phba->fc_plogi_cnt--;
1195 list_del(&nlp->nlp_listp);
1196 break;
1197 case NLP_ADISC_LIST:
1198 phba->fc_adisc_cnt--;
1199 list_del(&nlp->nlp_listp);
1200 break;
1201 case NLP_REGLOGIN_LIST:
1202 phba->fc_reglogin_cnt--;
1203 list_del(&nlp->nlp_listp);
1204 break;
1205 case NLP_PRLI_LIST:
1206 phba->fc_prli_cnt--;
1207 list_del(&nlp->nlp_listp);
1208 break;
1209 case NLP_UNMAPPED_LIST:
1210 phba->fc_unmap_cnt--;
1211 list_del(&nlp->nlp_listp);
1212 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1213 nlp->nlp_type &= ~NLP_FC_NODE;
1214 phba->nport_event_cnt++;
1215 if (nlp->rport)
1216 rport_del = unmapped;
1217 break;
1218 case NLP_MAPPED_LIST:
1219 phba->fc_map_cnt--;
1220 list_del(&nlp->nlp_listp);
1221 phba->nport_event_cnt++;
1222 if (nlp->rport)
1223 rport_del = mapped;
1224 break;
1225 case NLP_NPR_LIST:
1226 phba->fc_npr_cnt--;
1227 list_del(&nlp->nlp_listp);
1228 /* Stop delay tmo if taking node off NPR list */
1229 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1230 (list != NLP_NPR_LIST)) {
1231 spin_unlock_irq(phba->host->host_lock);
1232 lpfc_cancel_retry_delay_tmo(phba, nlp);
1233 spin_lock_irq(phba->host->host_lock);
1234 }
1235 break;
1236 }
1237
1238 nlp->nlp_flag &= ~NLP_LIST_MASK;
1239
1240 /* Add NPort <did> to <num> list */
1241 lpfc_printf_log(phba,
1242 KERN_INFO,
1243 LOG_NODE,
1244 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1245 phba->brd_no,
1246 nlp->nlp_DID, list, nlp->nlp_flag);
1247
1248 switch (list) {
1249 case NLP_NO_LIST: /* No list, just remove it */
1250 spin_unlock_irq(phba->host->host_lock);
1251 lpfc_nlp_remove(phba, nlp);
1252 spin_lock_irq(phba->host->host_lock);
1253 /* as node removed - stop further transport calls */
1254 rport_del = none;
1255 break;
1256 case NLP_UNUSED_LIST:
1257 nlp->nlp_flag |= list;
1258 /* Put it at the end of the unused list */
1259 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1260 phba->fc_unused_cnt++;
1261 break;
1262 case NLP_PLOGI_LIST:
1263 nlp->nlp_flag |= list;
1264 /* Put it at the end of the plogi list */
1265 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1266 phba->fc_plogi_cnt++;
1267 break;
1268 case NLP_ADISC_LIST:
1269 nlp->nlp_flag |= list;
1270 /* Put it at the end of the adisc list */
1271 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1272 phba->fc_adisc_cnt++;
1273 break;
1274 case NLP_REGLOGIN_LIST:
1275 nlp->nlp_flag |= list;
1276 /* Put it at the end of the reglogin list */
1277 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1278 phba->fc_reglogin_cnt++;
1279 break;
1280 case NLP_PRLI_LIST:
1281 nlp->nlp_flag |= list;
1282 /* Put it at the end of the prli list */
1283 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1284 phba->fc_prli_cnt++;
1285 break;
1286 case NLP_UNMAPPED_LIST:
1287 rport_add = unmapped;
1288 /* ensure all vestiges of "mapped" significance are gone */
1289 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1290 nlp->nlp_flag |= list;
1291 /* Put it at the end of the unmap list */
1292 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1293 phba->fc_unmap_cnt++;
1294 phba->nport_event_cnt++;
1295 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1296 nlp->nlp_type |= NLP_FC_NODE;
1297 break;
1298 case NLP_MAPPED_LIST:
1299 rport_add = mapped;
1300 nlp->nlp_flag |= list;
1301 /* Put it at the end of the map list */
1302 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1303 phba->fc_map_cnt++;
1304 phba->nport_event_cnt++;
1305 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1306 break;
1307 case NLP_NPR_LIST:
1308 nlp->nlp_flag |= list;
1309 /* Put it at the end of the npr list */
1310 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1311 phba->fc_npr_cnt++;
1312
1313 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1314 break;
1315 case NLP_JUST_DQ:
1316 break;
1317 }
1318
1319 spin_unlock_irq(phba->host->host_lock);
1320
1321 /*
1322 * We make all the calls into the transport after we have
1323 * moved the node between lists. This so that we don't
1324 * release the lock while in-between lists.
1325 */
1326
1327 /* Don't upcall midlayer if we're unloading */
1328 if (!(phba->fc_flag & FC_UNLOADING)) {
1329 /*
1330 * We revalidate the rport pointer as the "add" function
1331 * may have removed the remote port.
1332 */
1333 if ((rport_del != none) && nlp->rport)
1334 lpfc_unregister_remote_port(phba, nlp);
1335
1336 if (rport_add != none) {
1337 /*
1338 * Tell the fc transport about the port, if we haven't
1339 * already. If we have, and it's a scsi entity, be
1340 * sure to unblock any attached scsi devices
1341 */
1342 if ((!nlp->rport) || (nlp->rport->port_state ==
1343 FC_PORTSTATE_BLOCKED))
1344 lpfc_register_remote_port(phba, nlp);
1345
1346 /*
1347 * if we added to Mapped list, but the remote port
1348 * registration failed or assigned a target id outside
1349 * our presentable range - move the node to the
1350 * Unmapped List
1351 */
1352 if ((rport_add == mapped) &&
1353 ((!nlp->rport) ||
1354 (nlp->rport->scsi_target_id == -1) ||
1355 (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
1356 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1357 spin_lock_irq(phba->host->host_lock);
1358 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1359 spin_unlock_irq(phba->host->host_lock);
1360 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1361 }
1362 }
1363 }
1364 return 0;
1365 }
1366
1367 /*
1368 * Start / ReStart rescue timer for Discovery / RSCN handling
1369 */
1370 void
1371 lpfc_set_disctmo(struct lpfc_hba * phba)
1372 {
1373 uint32_t tmo;
1374
1375 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1376 /* For FAN, timeout should be greater then edtov */
1377 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1378 } else {
1379 /* Normal discovery timeout should be > then ELS/CT timeout
1380 * FC spec states we need 3 * ratov for CT requests
1381 */
1382 tmo = ((phba->fc_ratov * 3) + 3);
1383 }
1384
1385 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1386 spin_lock_irq(phba->host->host_lock);
1387 phba->fc_flag |= FC_DISC_TMO;
1388 spin_unlock_irq(phba->host->host_lock);
1389
1390 /* Start Discovery Timer state <hba_state> */
1391 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1392 "%d:0247 Start Discovery Timer state x%x "
1393 "Data: x%x x%lx x%x x%x\n",
1394 phba->brd_no,
1395 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1396 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1397
1398 return;
1399 }
1400
1401 /*
1402 * Cancel rescue timer for Discovery / RSCN handling
1403 */
1404 int
1405 lpfc_can_disctmo(struct lpfc_hba * phba)
1406 {
1407 /* Turn off discovery timer if its running */
1408 if (phba->fc_flag & FC_DISC_TMO) {
1409 spin_lock_irq(phba->host->host_lock);
1410 phba->fc_flag &= ~FC_DISC_TMO;
1411 spin_unlock_irq(phba->host->host_lock);
1412 del_timer_sync(&phba->fc_disctmo);
1413 phba->work_hba_events &= ~WORKER_DISC_TMO;
1414 }
1415
1416 /* Cancel Discovery Timer state <hba_state> */
1417 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1418 "%d:0248 Cancel Discovery Timer state x%x "
1419 "Data: x%x x%x x%x\n",
1420 phba->brd_no, phba->hba_state, phba->fc_flag,
1421 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1422
1423 return 0;
1424 }
1425
1426 /*
1427 * Check specified ring for outstanding IOCB on the SLI queue
1428 * Return true if iocb matches the specified nport
1429 */
1430 int
1431 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1432 struct lpfc_sli_ring * pring,
1433 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1434 {
1435 struct lpfc_sli *psli;
1436 IOCB_t *icmd;
1437
1438 psli = &phba->sli;
1439 icmd = &iocb->iocb;
1440 if (pring->ringno == LPFC_ELS_RING) {
1441 switch (icmd->ulpCommand) {
1442 case CMD_GEN_REQUEST64_CR:
1443 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1444 return 1;
1445 case CMD_ELS_REQUEST64_CR:
1446 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1447 return 1;
1448 case CMD_XMIT_ELS_RSP64_CX:
1449 if (iocb->context1 == (uint8_t *) ndlp)
1450 return 1;
1451 }
1452 } else if (pring->ringno == psli->extra_ring) {
1453
1454 } else if (pring->ringno == psli->fcp_ring) {
1455 /* Skip match check if waiting to relogin to FCP target */
1456 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1457 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1458 return 0;
1459 }
1460 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1461 return 1;
1462 }
1463 } else if (pring->ringno == psli->next_ring) {
1464
1465 }
1466 return 0;
1467 }
1468
1469 /*
1470 * Free resources / clean up outstanding I/Os
1471 * associated with nlp_rpi in the LPFC_NODELIST entry.
1472 */
1473 static int
1474 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1475 {
1476 struct lpfc_sli *psli;
1477 struct lpfc_sli_ring *pring;
1478 struct lpfc_iocbq *iocb, *next_iocb;
1479 IOCB_t *icmd;
1480 uint32_t rpi, i;
1481
1482 /*
1483 * Everything that matches on txcmplq will be returned
1484 * by firmware with a no rpi error.
1485 */
1486 psli = &phba->sli;
1487 rpi = ndlp->nlp_rpi;
1488 if (rpi) {
1489 /* Now process each ring */
1490 for (i = 0; i < psli->num_rings; i++) {
1491 pring = &psli->ring[i];
1492
1493 spin_lock_irq(phba->host->host_lock);
1494 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1495 list) {
1496 /*
1497 * Check to see if iocb matches the nport we are
1498 * looking for
1499 */
1500 if ((lpfc_check_sli_ndlp
1501 (phba, pring, iocb, ndlp))) {
1502 /* It matches, so deque and call compl
1503 with an error */
1504 list_del(&iocb->list);
1505 pring->txq_cnt--;
1506 if (iocb->iocb_cmpl) {
1507 icmd = &iocb->iocb;
1508 icmd->ulpStatus =
1509 IOSTAT_LOCAL_REJECT;
1510 icmd->un.ulpWord[4] =
1511 IOERR_SLI_ABORTED;
1512 spin_unlock_irq(phba->host->
1513 host_lock);
1514 (iocb->iocb_cmpl) (phba,
1515 iocb, iocb);
1516 spin_lock_irq(phba->host->
1517 host_lock);
1518 } else
1519 lpfc_sli_release_iocbq(phba,
1520 iocb);
1521 }
1522 }
1523 spin_unlock_irq(phba->host->host_lock);
1524
1525 }
1526 }
1527 return 0;
1528 }
1529
1530 /*
1531 * Free rpi associated with LPFC_NODELIST entry.
1532 * This routine is called from lpfc_freenode(), when we are removing
1533 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1534 * LOGO that completes successfully, and we are waiting to PLOGI back
1535 * to the remote NPort. In addition, it is called after we receive
1536 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1537 * we are waiting to PLOGI back to the remote NPort.
1538 */
1539 int
1540 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1541 {
1542 LPFC_MBOXQ_t *mbox;
1543 int rc;
1544
1545 if (ndlp->nlp_rpi) {
1546 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1547 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1548 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1549 rc = lpfc_sli_issue_mbox
1550 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1551 if (rc == MBX_NOT_FINISHED)
1552 mempool_free( mbox, phba->mbox_mem_pool);
1553 }
1554 lpfc_no_rpi(phba, ndlp);
1555 ndlp->nlp_rpi = 0;
1556 return 1;
1557 }
1558 return 0;
1559 }
1560
1561 /*
1562 * Free resources associated with LPFC_NODELIST entry
1563 * so it can be freed.
1564 */
1565 static int
1566 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1567 {
1568 LPFC_MBOXQ_t *mb;
1569 LPFC_MBOXQ_t *nextmb;
1570 struct lpfc_dmabuf *mp;
1571
1572 /* Cleanup node for NPort <nlp_DID> */
1573 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1574 "%d:0900 Cleanup node for NPort x%x "
1575 "Data: x%x x%x x%x\n",
1576 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1577 ndlp->nlp_state, ndlp->nlp_rpi);
1578
1579 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1580
1581 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1582 if ((mb = phba->sli.mbox_active)) {
1583 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1584 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1585 mb->context2 = NULL;
1586 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1587 }
1588 }
1589
1590 spin_lock_irq(phba->host->host_lock);
1591 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1592 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1593 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1594 mp = (struct lpfc_dmabuf *) (mb->context1);
1595 if (mp) {
1596 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1597 kfree(mp);
1598 }
1599 list_del(&mb->list);
1600 mempool_free(mb, phba->mbox_mem_pool);
1601 }
1602 }
1603 spin_unlock_irq(phba->host->host_lock);
1604
1605 lpfc_els_abort(phba,ndlp);
1606 spin_lock_irq(phba->host->host_lock);
1607 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1608 spin_unlock_irq(phba->host->host_lock);
1609
1610 ndlp->nlp_last_elscmd = 0;
1611 del_timer_sync(&ndlp->nlp_delayfunc);
1612
1613 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1614 list_del_init(&ndlp->els_retry_evt.evt_listp);
1615
1616 lpfc_unreg_rpi(phba, ndlp);
1617
1618 return 0;
1619 }
1620
1621 /*
1622 * Check to see if we can free the nlp back to the freelist.
1623 * If we are in the middle of using the nlp in the discovery state
1624 * machine, defer the free till we reach the end of the state machine.
1625 */
1626 int
1627 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1628 {
1629 struct lpfc_rport_data *rdata;
1630
1631 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1632 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1633 }
1634
1635 if (ndlp->nlp_disc_refcnt) {
1636 spin_lock_irq(phba->host->host_lock);
1637 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1638 spin_unlock_irq(phba->host->host_lock);
1639 } else {
1640 lpfc_freenode(phba, ndlp);
1641
1642 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1643 rdata = ndlp->rport->dd_data;
1644 rdata->pnode = NULL;
1645 ndlp->rport = NULL;
1646 }
1647
1648 mempool_free( ndlp, phba->nlp_mem_pool);
1649 }
1650 return 0;
1651 }
1652
1653 static int
1654 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1655 {
1656 D_ID mydid;
1657 D_ID ndlpdid;
1658 D_ID matchdid;
1659
1660 if (did == Bcast_DID)
1661 return 0;
1662
1663 if (ndlp->nlp_DID == 0) {
1664 return 0;
1665 }
1666
1667 /* First check for Direct match */
1668 if (ndlp->nlp_DID == did)
1669 return 1;
1670
1671 /* Next check for area/domain identically equals 0 match */
1672 mydid.un.word = phba->fc_myDID;
1673 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1674 return 0;
1675 }
1676
1677 matchdid.un.word = did;
1678 ndlpdid.un.word = ndlp->nlp_DID;
1679 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1680 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1681 (mydid.un.b.area == matchdid.un.b.area)) {
1682 if ((ndlpdid.un.b.domain == 0) &&
1683 (ndlpdid.un.b.area == 0)) {
1684 if (ndlpdid.un.b.id)
1685 return 1;
1686 }
1687 return 0;
1688 }
1689
1690 matchdid.un.word = ndlp->nlp_DID;
1691 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1692 (mydid.un.b.area == ndlpdid.un.b.area)) {
1693 if ((matchdid.un.b.domain == 0) &&
1694 (matchdid.un.b.area == 0)) {
1695 if (matchdid.un.b.id)
1696 return 1;
1697 }
1698 }
1699 }
1700 return 0;
1701 }
1702
1703 /* Search for a nodelist entry on a specific list */
1704 struct lpfc_nodelist *
1705 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1706 {
1707 struct lpfc_nodelist *ndlp;
1708 struct list_head *lists[]={&phba->fc_nlpunmap_list,
1709 &phba->fc_nlpmap_list,
1710 &phba->fc_plogi_list,
1711 &phba->fc_adisc_list,
1712 &phba->fc_reglogin_list,
1713 &phba->fc_prli_list,
1714 &phba->fc_npr_list,
1715 &phba->fc_unused_list};
1716 uint32_t search[]={NLP_SEARCH_UNMAPPED,
1717 NLP_SEARCH_MAPPED,
1718 NLP_SEARCH_PLOGI,
1719 NLP_SEARCH_ADISC,
1720 NLP_SEARCH_REGLOGIN,
1721 NLP_SEARCH_PRLI,
1722 NLP_SEARCH_NPR,
1723 NLP_SEARCH_UNUSED};
1724 int i;
1725 uint32_t data1;
1726
1727 spin_lock_irq(phba->host->host_lock);
1728 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
1729 if (!(order & search[i]))
1730 continue;
1731 list_for_each_entry(ndlp, lists[i], nlp_listp) {
1732 if (lpfc_matchdid(phba, ndlp, did)) {
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 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1738 "%d:0929 FIND node DID "
1739 " Data: x%p x%x x%x x%x\n",
1740 phba->brd_no,
1741 ndlp, ndlp->nlp_DID,
1742 ndlp->nlp_flag, data1);
1743 spin_unlock_irq(phba->host->host_lock);
1744 return ndlp;
1745 }
1746 }
1747 }
1748 spin_unlock_irq(phba->host->host_lock);
1749
1750 /* FIND node did <did> NOT FOUND */
1751 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1752 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1753 phba->brd_no, did, order);
1754 return NULL;
1755 }
1756
1757 struct lpfc_nodelist *
1758 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1759 {
1760 struct lpfc_nodelist *ndlp;
1761 uint32_t flg;
1762
1763 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1764 if (!ndlp) {
1765 if ((phba->fc_flag & FC_RSCN_MODE) &&
1766 ((lpfc_rscn_payload_check(phba, did) == 0)))
1767 return NULL;
1768 ndlp = (struct lpfc_nodelist *)
1769 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1770 if (!ndlp)
1771 return NULL;
1772 lpfc_nlp_init(phba, ndlp, did);
1773 ndlp->nlp_state = NLP_STE_NPR_NODE;
1774 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1775 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1776 return ndlp;
1777 }
1778 if (phba->fc_flag & FC_RSCN_MODE) {
1779 if (lpfc_rscn_payload_check(phba, did)) {
1780 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1781
1782 /* Since this node is marked for discovery,
1783 * delay timeout is not needed.
1784 */
1785 if (ndlp->nlp_flag & NLP_DELAY_TMO)
1786 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1787 } else
1788 ndlp = NULL;
1789 } else {
1790 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1791 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1792 return NULL;
1793 ndlp->nlp_state = NLP_STE_NPR_NODE;
1794 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1795 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1796 }
1797 return ndlp;
1798 }
1799
1800 /* Build a list of nodes to discover based on the loopmap */
1801 void
1802 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1803 {
1804 int j;
1805 uint32_t alpa, index;
1806
1807 if (phba->hba_state <= LPFC_LINK_DOWN) {
1808 return;
1809 }
1810 if (phba->fc_topology != TOPOLOGY_LOOP) {
1811 return;
1812 }
1813
1814 /* Check for loop map present or not */
1815 if (phba->alpa_map[0]) {
1816 for (j = 1; j <= phba->alpa_map[0]; j++) {
1817 alpa = phba->alpa_map[j];
1818
1819 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1820 continue;
1821 }
1822 lpfc_setup_disc_node(phba, alpa);
1823 }
1824 } else {
1825 /* No alpamap, so try all alpa's */
1826 for (j = 0; j < FC_MAXLOOP; j++) {
1827 /* If cfg_scan_down is set, start from highest
1828 * ALPA (0xef) to lowest (0x1).
1829 */
1830 if (phba->cfg_scan_down)
1831 index = j;
1832 else
1833 index = FC_MAXLOOP - j - 1;
1834 alpa = lpfcAlpaArray[index];
1835 if ((phba->fc_myDID & 0xff) == alpa) {
1836 continue;
1837 }
1838
1839 lpfc_setup_disc_node(phba, alpa);
1840 }
1841 }
1842 return;
1843 }
1844
1845 /* Start Link up / RSCN discovery on NPR list */
1846 void
1847 lpfc_disc_start(struct lpfc_hba * phba)
1848 {
1849 struct lpfc_sli *psli;
1850 LPFC_MBOXQ_t *mbox;
1851 struct lpfc_nodelist *ndlp, *next_ndlp;
1852 uint32_t did_changed, num_sent;
1853 uint32_t clear_la_pending;
1854 int rc;
1855
1856 psli = &phba->sli;
1857
1858 if (phba->hba_state <= LPFC_LINK_DOWN) {
1859 return;
1860 }
1861 if (phba->hba_state == LPFC_CLEAR_LA)
1862 clear_la_pending = 1;
1863 else
1864 clear_la_pending = 0;
1865
1866 if (phba->hba_state < LPFC_HBA_READY) {
1867 phba->hba_state = LPFC_DISC_AUTH;
1868 }
1869 lpfc_set_disctmo(phba);
1870
1871 if (phba->fc_prevDID == phba->fc_myDID) {
1872 did_changed = 0;
1873 } else {
1874 did_changed = 1;
1875 }
1876 phba->fc_prevDID = phba->fc_myDID;
1877 phba->num_disc_nodes = 0;
1878
1879 /* Start Discovery state <hba_state> */
1880 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1881 "%d:0202 Start Discovery hba state x%x "
1882 "Data: x%x x%x x%x\n",
1883 phba->brd_no, phba->hba_state, phba->fc_flag,
1884 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1885
1886 /* If our did changed, we MUST do PLOGI */
1887 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1888 nlp_listp) {
1889 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1890 if (did_changed) {
1891 spin_lock_irq(phba->host->host_lock);
1892 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1893 spin_unlock_irq(phba->host->host_lock);
1894 }
1895 }
1896 }
1897
1898 /* First do ADISCs - if any */
1899 num_sent = lpfc_els_disc_adisc(phba);
1900
1901 if (num_sent)
1902 return;
1903
1904 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1905 /* If we get here, there is nothing to ADISC */
1906 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1907 phba->hba_state = LPFC_CLEAR_LA;
1908 lpfc_clear_la(phba, mbox);
1909 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1910 rc = lpfc_sli_issue_mbox(phba, mbox,
1911 (MBX_NOWAIT | MBX_STOP_IOCB));
1912 if (rc == MBX_NOT_FINISHED) {
1913 mempool_free( mbox, phba->mbox_mem_pool);
1914 lpfc_disc_flush_list(phba);
1915 psli->ring[(psli->extra_ring)].flag &=
1916 ~LPFC_STOP_IOCB_EVENT;
1917 psli->ring[(psli->fcp_ring)].flag &=
1918 ~LPFC_STOP_IOCB_EVENT;
1919 psli->ring[(psli->next_ring)].flag &=
1920 ~LPFC_STOP_IOCB_EVENT;
1921 phba->hba_state = LPFC_HBA_READY;
1922 }
1923 }
1924 } else {
1925 /* Next do PLOGIs - if any */
1926 num_sent = lpfc_els_disc_plogi(phba);
1927
1928 if (num_sent)
1929 return;
1930
1931 if (phba->fc_flag & FC_RSCN_MODE) {
1932 /* Check to see if more RSCNs came in while we
1933 * were processing this one.
1934 */
1935 if ((phba->fc_rscn_id_cnt == 0) &&
1936 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1937 spin_lock_irq(phba->host->host_lock);
1938 phba->fc_flag &= ~FC_RSCN_MODE;
1939 spin_unlock_irq(phba->host->host_lock);
1940 } else
1941 lpfc_els_handle_rscn(phba);
1942 }
1943 }
1944 return;
1945 }
1946
1947 /*
1948 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
1949 * ring the match the sppecified nodelist.
1950 */
1951 static void
1952 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1953 {
1954 struct lpfc_sli *psli;
1955 IOCB_t *icmd;
1956 struct lpfc_iocbq *iocb, *next_iocb;
1957 struct lpfc_sli_ring *pring;
1958 struct lpfc_dmabuf *mp;
1959
1960 psli = &phba->sli;
1961 pring = &psli->ring[LPFC_ELS_RING];
1962
1963 /* Error matching iocb on txq or txcmplq
1964 * First check the txq.
1965 */
1966 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
1967 if (iocb->context1 != ndlp) {
1968 continue;
1969 }
1970 icmd = &iocb->iocb;
1971 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
1972 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
1973
1974 list_del(&iocb->list);
1975 pring->txq_cnt--;
1976 lpfc_els_free_iocb(phba, iocb);
1977 }
1978 }
1979
1980 /* Next check the txcmplq */
1981 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1982 if (iocb->context1 != ndlp) {
1983 continue;
1984 }
1985 icmd = &iocb->iocb;
1986 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
1987 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
1988
1989 iocb->iocb_cmpl = NULL;
1990 /* context2 = cmd, context2->next = rsp, context3 =
1991 bpl */
1992 if (iocb->context2) {
1993 /* Free the response IOCB before handling the
1994 command. */
1995
1996 mp = (struct lpfc_dmabuf *) (iocb->context2);
1997 mp = list_get_first(&mp->list,
1998 struct lpfc_dmabuf,
1999 list);
2000 if (mp) {
2001 /* Delay before releasing rsp buffer to
2002 * give UNREG mbox a chance to take
2003 * effect.
2004 */
2005 list_add(&mp->list,
2006 &phba->freebufList);
2007 }
2008 lpfc_mbuf_free(phba,
2009 ((struct lpfc_dmabuf *)
2010 iocb->context2)->virt,
2011 ((struct lpfc_dmabuf *)
2012 iocb->context2)->phys);
2013 kfree(iocb->context2);
2014 }
2015
2016 if (iocb->context3) {
2017 lpfc_mbuf_free(phba,
2018 ((struct lpfc_dmabuf *)
2019 iocb->context3)->virt,
2020 ((struct lpfc_dmabuf *)
2021 iocb->context3)->phys);
2022 kfree(iocb->context3);
2023 }
2024 }
2025 }
2026
2027 return;
2028 }
2029
2030 void
2031 lpfc_disc_flush_list(struct lpfc_hba * phba)
2032 {
2033 struct lpfc_nodelist *ndlp, *next_ndlp;
2034
2035 if (phba->fc_plogi_cnt) {
2036 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2037 nlp_listp) {
2038 lpfc_free_tx(phba, ndlp);
2039 lpfc_nlp_remove(phba, ndlp);
2040 }
2041 }
2042 if (phba->fc_adisc_cnt) {
2043 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2044 nlp_listp) {
2045 lpfc_free_tx(phba, ndlp);
2046 lpfc_nlp_remove(phba, ndlp);
2047 }
2048 }
2049 return;
2050 }
2051
2052 /*****************************************************************************/
2053 /*
2054 * NAME: lpfc_disc_timeout
2055 *
2056 * FUNCTION: Fibre Channel driver discovery timeout routine.
2057 *
2058 * EXECUTION ENVIRONMENT: interrupt only
2059 *
2060 * CALLED FROM:
2061 * Timer function
2062 *
2063 * RETURNS:
2064 * none
2065 */
2066 /*****************************************************************************/
2067 void
2068 lpfc_disc_timeout(unsigned long ptr)
2069 {
2070 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2071 unsigned long flags = 0;
2072
2073 if (unlikely(!phba))
2074 return;
2075
2076 spin_lock_irqsave(phba->host->host_lock, flags);
2077 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2078 phba->work_hba_events |= WORKER_DISC_TMO;
2079 if (phba->work_wait)
2080 wake_up(phba->work_wait);
2081 }
2082 spin_unlock_irqrestore(phba->host->host_lock, flags);
2083 return;
2084 }
2085
2086 static void
2087 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2088 {
2089 struct lpfc_sli *psli;
2090 struct lpfc_nodelist *ndlp, *next_ndlp;
2091 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2092 int rc, clrlaerr = 0;
2093
2094 if (unlikely(!phba))
2095 return;
2096
2097 if (!(phba->fc_flag & FC_DISC_TMO))
2098 return;
2099
2100 psli = &phba->sli;
2101
2102 spin_lock_irq(phba->host->host_lock);
2103 phba->fc_flag &= ~FC_DISC_TMO;
2104 spin_unlock_irq(phba->host->host_lock);
2105
2106 switch (phba->hba_state) {
2107
2108 case LPFC_LOCAL_CFG_LINK:
2109 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2110 /* FAN timeout */
2111 lpfc_printf_log(phba,
2112 KERN_WARNING,
2113 LOG_DISCOVERY,
2114 "%d:0221 FAN timeout\n",
2115 phba->brd_no);
2116
2117 /* Start discovery by sending FLOGI, clean up old rpis */
2118 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2119 nlp_listp) {
2120 if (ndlp->nlp_type & NLP_FABRIC) {
2121 /* Clean up the ndlp on Fabric connections */
2122 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2123 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2124 /* Fail outstanding IO now since device
2125 * is marked for PLOGI.
2126 */
2127 lpfc_unreg_rpi(phba, ndlp);
2128 }
2129 }
2130 phba->hba_state = LPFC_FLOGI;
2131 lpfc_set_disctmo(phba);
2132 lpfc_initial_flogi(phba);
2133 break;
2134
2135 case LPFC_FLOGI:
2136 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2137 /* Initial FLOGI timeout */
2138 lpfc_printf_log(phba,
2139 KERN_ERR,
2140 LOG_DISCOVERY,
2141 "%d:0222 Initial FLOGI timeout\n",
2142 phba->brd_no);
2143
2144 /* Assume no Fabric and go on with discovery.
2145 * Check for outstanding ELS FLOGI to abort.
2146 */
2147
2148 /* FLOGI failed, so just use loop map to make discovery list */
2149 lpfc_disc_list_loopmap(phba);
2150
2151 /* Start discovery */
2152 lpfc_disc_start(phba);
2153 break;
2154
2155 case LPFC_FABRIC_CFG_LINK:
2156 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2157 NameServer login */
2158 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2159 "%d:0223 Timeout while waiting for NameServer "
2160 "login\n", phba->brd_no);
2161
2162 /* Next look for NameServer ndlp */
2163 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2164 if (ndlp)
2165 lpfc_nlp_remove(phba, ndlp);
2166 /* Start discovery */
2167 lpfc_disc_start(phba);
2168 break;
2169
2170 case LPFC_NS_QRY:
2171 /* Check for wait for NameServer Rsp timeout */
2172 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2173 "%d:0224 NameServer Query timeout "
2174 "Data: x%x x%x\n",
2175 phba->brd_no,
2176 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2177
2178 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2179 NameServer_DID);
2180 if (ndlp) {
2181 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2182 /* Try it one more time */
2183 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2184 if (rc == 0)
2185 break;
2186 }
2187 phba->fc_ns_retry = 0;
2188 }
2189
2190 /* Nothing to authenticate, so CLEAR_LA right now */
2191 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2192 if (!clearlambox) {
2193 clrlaerr = 1;
2194 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2195 "%d:0226 Device Discovery "
2196 "completion error\n",
2197 phba->brd_no);
2198 phba->hba_state = LPFC_HBA_ERROR;
2199 break;
2200 }
2201
2202 phba->hba_state = LPFC_CLEAR_LA;
2203 lpfc_clear_la(phba, clearlambox);
2204 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2205 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2206 (MBX_NOWAIT | MBX_STOP_IOCB));
2207 if (rc == MBX_NOT_FINISHED) {
2208 mempool_free(clearlambox, phba->mbox_mem_pool);
2209 clrlaerr = 1;
2210 break;
2211 }
2212
2213 /* Setup and issue mailbox INITIALIZE LINK command */
2214 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2215 if (!initlinkmbox) {
2216 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2217 "%d:0206 Device Discovery "
2218 "completion error\n",
2219 phba->brd_no);
2220 phba->hba_state = LPFC_HBA_ERROR;
2221 break;
2222 }
2223
2224 lpfc_linkdown(phba);
2225 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2226 phba->cfg_link_speed);
2227 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2228 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2229 (MBX_NOWAIT | MBX_STOP_IOCB));
2230 if (rc == MBX_NOT_FINISHED)
2231 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2232
2233 break;
2234
2235 case LPFC_DISC_AUTH:
2236 /* Node Authentication timeout */
2237 lpfc_printf_log(phba,
2238 KERN_ERR,
2239 LOG_DISCOVERY,
2240 "%d:0227 Node Authentication timeout\n",
2241 phba->brd_no);
2242 lpfc_disc_flush_list(phba);
2243 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2244 if (!clearlambox) {
2245 clrlaerr = 1;
2246 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2247 "%d:0207 Device Discovery "
2248 "completion error\n",
2249 phba->brd_no);
2250 phba->hba_state = LPFC_HBA_ERROR;
2251 break;
2252 }
2253 phba->hba_state = LPFC_CLEAR_LA;
2254 lpfc_clear_la(phba, clearlambox);
2255 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2256 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2257 (MBX_NOWAIT | MBX_STOP_IOCB));
2258 if (rc == MBX_NOT_FINISHED) {
2259 mempool_free(clearlambox, phba->mbox_mem_pool);
2260 clrlaerr = 1;
2261 }
2262 break;
2263
2264 case LPFC_CLEAR_LA:
2265 /* CLEAR LA timeout */
2266 lpfc_printf_log(phba,
2267 KERN_ERR,
2268 LOG_DISCOVERY,
2269 "%d:0228 CLEAR LA timeout\n",
2270 phba->brd_no);
2271 clrlaerr = 1;
2272 break;
2273
2274 case LPFC_HBA_READY:
2275 if (phba->fc_flag & FC_RSCN_MODE) {
2276 lpfc_printf_log(phba,
2277 KERN_ERR,
2278 LOG_DISCOVERY,
2279 "%d:0231 RSCN timeout Data: x%x x%x\n",
2280 phba->brd_no,
2281 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2282
2283 /* Cleanup any outstanding ELS commands */
2284 lpfc_els_flush_cmd(phba);
2285
2286 lpfc_els_flush_rscn(phba);
2287 lpfc_disc_flush_list(phba);
2288 }
2289 break;
2290 }
2291
2292 if (clrlaerr) {
2293 lpfc_disc_flush_list(phba);
2294 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2295 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2296 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2297 phba->hba_state = LPFC_HBA_READY;
2298 }
2299
2300 return;
2301 }
2302
2303 /*
2304 * This routine handles processing a NameServer REG_LOGIN mailbox
2305 * command upon completion. It is setup in the LPFC_MBOXQ
2306 * as the completion routine when the command is
2307 * handed off to the SLI layer.
2308 */
2309 void
2310 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2311 {
2312 struct lpfc_sli *psli;
2313 MAILBOX_t *mb;
2314 struct lpfc_dmabuf *mp;
2315 struct lpfc_nodelist *ndlp;
2316
2317 psli = &phba->sli;
2318 mb = &pmb->mb;
2319
2320 ndlp = (struct lpfc_nodelist *) pmb->context2;
2321 mp = (struct lpfc_dmabuf *) (pmb->context1);
2322
2323 pmb->context1 = NULL;
2324
2325 ndlp->nlp_rpi = mb->un.varWords[0];
2326 ndlp->nlp_type |= NLP_FABRIC;
2327 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2328 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2329
2330 /* Start issuing Fabric-Device Management Interface (FDMI)
2331 * command to 0xfffffa (FDMI well known port)
2332 */
2333 if (phba->cfg_fdmi_on == 1) {
2334 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2335 } else {
2336 /*
2337 * Delay issuing FDMI command if fdmi-on=2
2338 * (supporting RPA/hostnmae)
2339 */
2340 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2341 }
2342
2343 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2344 kfree(mp);
2345 mempool_free( pmb, phba->mbox_mem_pool);
2346
2347 return;
2348 }
2349
2350 /*
2351 * This routine looks up the ndlp lists
2352 * for the given RPI. If rpi found
2353 * it return the node list pointer
2354 * else return NULL.
2355 */
2356 struct lpfc_nodelist *
2357 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2358 {
2359 struct lpfc_nodelist *ndlp;
2360 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2361 &phba->fc_nlpmap_list,
2362 &phba->fc_plogi_list,
2363 &phba->fc_adisc_list,
2364 &phba->fc_reglogin_list};
2365 int i;
2366
2367 spin_lock_irq(phba->host->host_lock);
2368 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2369 list_for_each_entry(ndlp, lists[i], nlp_listp)
2370 if (ndlp->nlp_rpi == rpi) {
2371 spin_unlock_irq(phba->host->host_lock);
2372 return ndlp;
2373 }
2374 spin_unlock_irq(phba->host->host_lock);
2375 return NULL;
2376 }
2377
2378 /*
2379 * This routine looks up the ndlp lists
2380 * for the given WWPN. If WWPN found
2381 * it return the node list pointer
2382 * else return NULL.
2383 */
2384 struct lpfc_nodelist *
2385 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2386 struct lpfc_name * wwpn)
2387 {
2388 struct lpfc_nodelist *ndlp;
2389 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2390 &phba->fc_nlpmap_list,
2391 &phba->fc_npr_list,
2392 &phba->fc_plogi_list,
2393 &phba->fc_adisc_list,
2394 &phba->fc_reglogin_list,
2395 &phba->fc_prli_list};
2396 uint32_t search[]={NLP_SEARCH_UNMAPPED,
2397 NLP_SEARCH_MAPPED,
2398 NLP_SEARCH_NPR,
2399 NLP_SEARCH_PLOGI,
2400 NLP_SEARCH_ADISC,
2401 NLP_SEARCH_REGLOGIN,
2402 NLP_SEARCH_PRLI};
2403 int i;
2404
2405 spin_lock_irq(phba->host->host_lock);
2406 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2407 if (!(order & search[i]))
2408 continue;
2409 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2410 if (memcmp(&ndlp->nlp_portname, wwpn,
2411 sizeof(struct lpfc_name)) == 0) {
2412 spin_unlock_irq(phba->host->host_lock);
2413 return ndlp;
2414 }
2415 }
2416 }
2417 spin_unlock_irq(phba->host->host_lock);
2418 return NULL;
2419 }
2420
2421 void
2422 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2423 uint32_t did)
2424 {
2425 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2426 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2427 init_timer(&ndlp->nlp_delayfunc);
2428 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2429 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2430 ndlp->nlp_DID = did;
2431 ndlp->nlp_phba = phba;
2432 ndlp->nlp_sid = NLP_NO_SID;
2433 return;
2434 }
kernel source for telekom puls (alcatel/mediatek)