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[MIPS] RTLX: Protect rtlx_{read,write} with mutex.
[linux-2.6/linux-mips/linux-dm7025.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
blobc39564e85e944f62ebed5d8b3d41a6f75daf4ff7
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 ndlp->rport = NULL;
151 rdata->pnode = NULL;
152
153 if (!(phba->fc_flag & FC_UNLOADING))
154 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
155
156 return;
157 }
158
159 static void
160 lpfc_work_list_done(struct lpfc_hba * phba)
161 {
162 struct lpfc_work_evt *evtp = NULL;
163 struct lpfc_nodelist *ndlp;
164 int free_evt;
165
166 spin_lock_irq(phba->host->host_lock);
167 while(!list_empty(&phba->work_list)) {
168 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
169 evt_listp);
170 spin_unlock_irq(phba->host->host_lock);
171 free_evt = 1;
172 switch (evtp->evt) {
173 case LPFC_EVT_ELS_RETRY:
174 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
175 lpfc_els_retry_delay_handler(ndlp);
176 free_evt = 0;
177 break;
178 case LPFC_EVT_ONLINE:
179 if (phba->hba_state < LPFC_LINK_DOWN)
180 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
181 else
182 *(int *)(evtp->evt_arg1) = 0;
183 complete((struct completion *)(evtp->evt_arg2));
184 break;
185 case LPFC_EVT_OFFLINE:
186 if (phba->hba_state >= LPFC_LINK_DOWN)
187 lpfc_offline(phba);
188 lpfc_sli_brdrestart(phba);
189 *(int *)(evtp->evt_arg1) =
190 lpfc_sli_brdready(phba,HS_FFRDY | HS_MBRDY);
191 complete((struct completion *)(evtp->evt_arg2));
192 break;
193 case LPFC_EVT_WARM_START:
194 if (phba->hba_state >= LPFC_LINK_DOWN)
195 lpfc_offline(phba);
196 lpfc_reset_barrier(phba);
197 lpfc_sli_brdreset(phba);
198 lpfc_hba_down_post(phba);
199 *(int *)(evtp->evt_arg1) =
200 lpfc_sli_brdready(phba, HS_MBRDY);
201 complete((struct completion *)(evtp->evt_arg2));
202 break;
203 case LPFC_EVT_KILL:
204 if (phba->hba_state >= LPFC_LINK_DOWN)
205 lpfc_offline(phba);
206 *(int *)(evtp->evt_arg1)
207 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
208 complete((struct completion *)(evtp->evt_arg2));
209 break;
210 }
211 if (free_evt)
212 kfree(evtp);
213 spin_lock_irq(phba->host->host_lock);
214 }
215 spin_unlock_irq(phba->host->host_lock);
216
217 }
218
219 static void
220 lpfc_work_done(struct lpfc_hba * phba)
221 {
222 struct lpfc_sli_ring *pring;
223 int i;
224 uint32_t ha_copy;
225 uint32_t control;
226 uint32_t work_hba_events;
227
228 spin_lock_irq(phba->host->host_lock);
229 ha_copy = phba->work_ha;
230 phba->work_ha = 0;
231 work_hba_events=phba->work_hba_events;
232 spin_unlock_irq(phba->host->host_lock);
233
234 if (ha_copy & HA_ERATT)
235 lpfc_handle_eratt(phba);
236
237 if (ha_copy & HA_MBATT)
238 lpfc_sli_handle_mb_event(phba);
239
240 if (ha_copy & HA_LATT)
241 lpfc_handle_latt(phba);
242
243 if (work_hba_events & WORKER_DISC_TMO)
244 lpfc_disc_timeout_handler(phba);
245
246 if (work_hba_events & WORKER_ELS_TMO)
247 lpfc_els_timeout_handler(phba);
248
249 if (work_hba_events & WORKER_MBOX_TMO)
250 lpfc_mbox_timeout_handler(phba);
251
252 if (work_hba_events & WORKER_FDMI_TMO)
253 lpfc_fdmi_tmo_handler(phba);
254
255 spin_lock_irq(phba->host->host_lock);
256 phba->work_hba_events &= ~work_hba_events;
257 spin_unlock_irq(phba->host->host_lock);
258
259 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
260 pring = &phba->sli.ring[i];
261 if ((ha_copy & HA_RXATT)
262 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
263 if (pring->flag & LPFC_STOP_IOCB_MASK) {
264 pring->flag |= LPFC_DEFERRED_RING_EVENT;
265 } else {
266 lpfc_sli_handle_slow_ring_event(phba, pring,
267 (ha_copy &
268 HA_RXMASK));
269 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
270 }
271 /*
272 * Turn on Ring interrupts
273 */
274 spin_lock_irq(phba->host->host_lock);
275 control = readl(phba->HCregaddr);
276 control |= (HC_R0INT_ENA << i);
277 writel(control, phba->HCregaddr);
278 readl(phba->HCregaddr); /* flush */
279 spin_unlock_irq(phba->host->host_lock);
280 }
281 }
282
283 lpfc_work_list_done (phba);
284
285 }
286
287 static int
288 check_work_wait_done(struct lpfc_hba *phba) {
289
290 spin_lock_irq(phba->host->host_lock);
291 if (phba->work_ha ||
292 phba->work_hba_events ||
293 (!list_empty(&phba->work_list)) ||
294 kthread_should_stop()) {
295 spin_unlock_irq(phba->host->host_lock);
296 return 1;
297 } else {
298 spin_unlock_irq(phba->host->host_lock);
299 return 0;
300 }
301 }
302
303 int
304 lpfc_do_work(void *p)
305 {
306 struct lpfc_hba *phba = p;
307 int rc;
308 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
309
310 set_user_nice(current, -20);
311 phba->work_wait = &work_waitq;
312
313 while (1) {
314
315 rc = wait_event_interruptible(work_waitq,
316 check_work_wait_done(phba));
317 BUG_ON(rc);
318
319 if (kthread_should_stop())
320 break;
321
322 lpfc_work_done(phba);
323
324 }
325 phba->work_wait = NULL;
326 return 0;
327 }
328
329 /*
330 * This is only called to handle FC worker events. Since this a rare
331 * occurance, we allocate a struct lpfc_work_evt structure here instead of
332 * embedding it in the IOCB.
333 */
334 int
335 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
336 uint32_t evt)
337 {
338 struct lpfc_work_evt *evtp;
339
340 /*
341 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
342 * be queued to worker thread for processing
343 */
344 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
345 if (!evtp)
346 return 0;
347
348 evtp->evt_arg1 = arg1;
349 evtp->evt_arg2 = arg2;
350 evtp->evt = evt;
351
352 spin_lock_irq(phba->host->host_lock);
353 list_add_tail(&evtp->evt_listp, &phba->work_list);
354 if (phba->work_wait)
355 wake_up(phba->work_wait);
356 spin_unlock_irq(phba->host->host_lock);
357
358 return 1;
359 }
360
361 int
362 lpfc_linkdown(struct lpfc_hba * phba)
363 {
364 struct lpfc_sli *psli;
365 struct lpfc_nodelist *ndlp, *next_ndlp;
366 struct list_head *listp, *node_list[7];
367 LPFC_MBOXQ_t *mb;
368 int rc, i;
369
370 psli = &phba->sli;
371 /* sysfs or selective reset may call this routine to clean up */
372 if (phba->hba_state >= LPFC_LINK_DOWN) {
373 if (phba->hba_state == LPFC_LINK_DOWN)
374 return 0;
375
376 spin_lock_irq(phba->host->host_lock);
377 phba->hba_state = LPFC_LINK_DOWN;
378 spin_unlock_irq(phba->host->host_lock);
379 }
380
381 fc_host_post_event(phba->host, fc_get_event_number(),
382 FCH_EVT_LINKDOWN, 0);
383
384 /* Clean up any firmware default rpi's */
385 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
386 lpfc_unreg_did(phba, 0xffffffff, mb);
387 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
388 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
389 == MBX_NOT_FINISHED) {
390 mempool_free( mb, phba->mbox_mem_pool);
391 }
392 }
393
394 /* Cleanup any outstanding RSCN activity */
395 lpfc_els_flush_rscn(phba);
396
397 /* Cleanup any outstanding ELS commands */
398 lpfc_els_flush_cmd(phba);
399
400 /* Issue a LINK DOWN event to all nodes */
401 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
402 node_list[1] = &phba->fc_nlpmap_list;
403 node_list[2] = &phba->fc_nlpunmap_list;
404 node_list[3] = &phba->fc_prli_list;
405 node_list[4] = &phba->fc_reglogin_list;
406 node_list[5] = &phba->fc_adisc_list;
407 node_list[6] = &phba->fc_plogi_list;
408 for (i = 0; i < 7; i++) {
409 listp = node_list[i];
410 if (list_empty(listp))
411 continue;
412
413 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
414
415 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
416 NLP_EVT_DEVICE_RECOVERY);
417
418 }
419 }
420
421 /* free any ndlp's on unused list */
422 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
423 nlp_listp) {
424 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
425 }
426
427 /* Setup myDID for link up if we are in pt2pt mode */
428 if (phba->fc_flag & FC_PT2PT) {
429 phba->fc_myDID = 0;
430 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
431 lpfc_config_link(phba, mb);
432 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
433 if (lpfc_sli_issue_mbox
434 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
435 == MBX_NOT_FINISHED) {
436 mempool_free( mb, phba->mbox_mem_pool);
437 }
438 }
439 spin_lock_irq(phba->host->host_lock);
440 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
441 spin_unlock_irq(phba->host->host_lock);
442 }
443 spin_lock_irq(phba->host->host_lock);
444 phba->fc_flag &= ~FC_LBIT;
445 spin_unlock_irq(phba->host->host_lock);
446
447 /* Turn off discovery timer if its running */
448 lpfc_can_disctmo(phba);
449
450 /* Must process IOCBs on all rings to handle ABORTed I/Os */
451 return 0;
452 }
453
454 static int
455 lpfc_linkup(struct lpfc_hba * phba)
456 {
457 struct lpfc_nodelist *ndlp, *next_ndlp;
458 struct list_head *listp, *node_list[7];
459 int i;
460
461 fc_host_post_event(phba->host, fc_get_event_number(),
462 FCH_EVT_LINKUP, 0);
463
464 spin_lock_irq(phba->host->host_lock);
465 phba->hba_state = LPFC_LINK_UP;
466 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
467 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
468 phba->fc_flag |= FC_NDISC_ACTIVE;
469 phba->fc_ns_retry = 0;
470 spin_unlock_irq(phba->host->host_lock);
471
472
473 node_list[0] = &phba->fc_plogi_list;
474 node_list[1] = &phba->fc_adisc_list;
475 node_list[2] = &phba->fc_reglogin_list;
476 node_list[3] = &phba->fc_prli_list;
477 node_list[4] = &phba->fc_nlpunmap_list;
478 node_list[5] = &phba->fc_nlpmap_list;
479 node_list[6] = &phba->fc_npr_list;
480 for (i = 0; i < 7; i++) {
481 listp = node_list[i];
482 if (list_empty(listp))
483 continue;
484
485 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
486 if (phba->fc_flag & FC_LBIT) {
487 if (ndlp->nlp_type & NLP_FABRIC) {
488 /* On Linkup its safe to clean up the
489 * ndlp from Fabric connections.
490 */
491 lpfc_nlp_list(phba, ndlp,
492 NLP_UNUSED_LIST);
493 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
494 /* Fail outstanding IO now since device
495 * is marked for PLOGI.
496 */
497 lpfc_unreg_rpi(phba, ndlp);
498 }
499 }
500 }
501 }
502
503 /* free any ndlp's on unused list */
504 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
505 nlp_listp) {
506 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
507 }
508
509 return 0;
510 }
511
512 /*
513 * This routine handles processing a CLEAR_LA mailbox
514 * command upon completion. It is setup in the LPFC_MBOXQ
515 * as the completion routine when the command is
516 * handed off to the SLI layer.
517 */
518 void
519 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
520 {
521 struct lpfc_sli *psli;
522 MAILBOX_t *mb;
523 uint32_t control;
524
525 psli = &phba->sli;
526 mb = &pmb->mb;
527 /* Since we don't do discovery right now, turn these off here */
528 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
529 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
530 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
531
532 /* Check for error */
533 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
534 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
535 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
536 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
537 "state x%x\n",
538 phba->brd_no, mb->mbxStatus, phba->hba_state);
539
540 phba->hba_state = LPFC_HBA_ERROR;
541 goto out;
542 }
543
544 if (phba->fc_flag & FC_ABORT_DISCOVERY)
545 goto out;
546
547 phba->num_disc_nodes = 0;
548 /* go thru NPR list and issue ELS PLOGIs */
549 if (phba->fc_npr_cnt) {
550 lpfc_els_disc_plogi(phba);
551 }
552
553 if (!phba->num_disc_nodes) {
554 spin_lock_irq(phba->host->host_lock);
555 phba->fc_flag &= ~FC_NDISC_ACTIVE;
556 spin_unlock_irq(phba->host->host_lock);
557 }
558
559 phba->hba_state = LPFC_HBA_READY;
560
561 out:
562 /* Device Discovery completes */
563 lpfc_printf_log(phba,
564 KERN_INFO,
565 LOG_DISCOVERY,
566 "%d:0225 Device Discovery completes\n",
567 phba->brd_no);
568
569 mempool_free( pmb, phba->mbox_mem_pool);
570
571 spin_lock_irq(phba->host->host_lock);
572 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
573 if (phba->fc_flag & FC_ESTABLISH_LINK) {
574 phba->fc_flag &= ~FC_ESTABLISH_LINK;
575 }
576 spin_unlock_irq(phba->host->host_lock);
577
578 del_timer_sync(&phba->fc_estabtmo);
579
580 lpfc_can_disctmo(phba);
581
582 /* turn on Link Attention interrupts */
583 spin_lock_irq(phba->host->host_lock);
584 psli->sli_flag |= LPFC_PROCESS_LA;
585 control = readl(phba->HCregaddr);
586 control |= HC_LAINT_ENA;
587 writel(control, phba->HCregaddr);
588 readl(phba->HCregaddr); /* flush */
589 spin_unlock_irq(phba->host->host_lock);
590
591 return;
592 }
593
594 static void
595 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
596 {
597 struct lpfc_sli *psli = &phba->sli;
598 int rc;
599
600 if (pmb->mb.mbxStatus)
601 goto out;
602
603 mempool_free(pmb, phba->mbox_mem_pool);
604
605 if (phba->fc_topology == TOPOLOGY_LOOP &&
606 phba->fc_flag & FC_PUBLIC_LOOP &&
607 !(phba->fc_flag & FC_LBIT)) {
608 /* Need to wait for FAN - use discovery timer
609 * for timeout. hba_state is identically
610 * LPFC_LOCAL_CFG_LINK while waiting for FAN
611 */
612 lpfc_set_disctmo(phba);
613 return;
614 }
615
616 /* Start discovery by sending a FLOGI. hba_state is identically
617 * LPFC_FLOGI while waiting for FLOGI cmpl
618 */
619 phba->hba_state = LPFC_FLOGI;
620 lpfc_set_disctmo(phba);
621 lpfc_initial_flogi(phba);
622 return;
623
624 out:
625 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
626 "%d:0306 CONFIG_LINK mbxStatus error x%x "
627 "HBA state x%x\n",
628 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
629
630 lpfc_linkdown(phba);
631
632 phba->hba_state = LPFC_HBA_ERROR;
633
634 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
635 "%d:0200 CONFIG_LINK bad hba state x%x\n",
636 phba->brd_no, phba->hba_state);
637
638 lpfc_clear_la(phba, pmb);
639 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
640 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
641 if (rc == MBX_NOT_FINISHED) {
642 mempool_free(pmb, phba->mbox_mem_pool);
643 lpfc_disc_flush_list(phba);
644 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
645 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
646 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
647 phba->hba_state = LPFC_HBA_READY;
648 }
649 return;
650 }
651
652 static void
653 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
654 {
655 struct lpfc_sli *psli = &phba->sli;
656 MAILBOX_t *mb = &pmb->mb;
657 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
658
659
660 /* Check for error */
661 if (mb->mbxStatus) {
662 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
663 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
664 "%d:0319 READ_SPARAM mbxStatus error x%x "
665 "hba state x%x>\n",
666 phba->brd_no, mb->mbxStatus, phba->hba_state);
667
668 lpfc_linkdown(phba);
669 phba->hba_state = LPFC_HBA_ERROR;
670 goto out;
671 }
672
673 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
674 sizeof (struct serv_parm));
675 if (phba->cfg_soft_wwnn)
676 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
677 if (phba->cfg_soft_wwpn)
678 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
679 memcpy((uint8_t *) & phba->fc_nodename,
680 (uint8_t *) & phba->fc_sparam.nodeName,
681 sizeof (struct lpfc_name));
682 memcpy((uint8_t *) & phba->fc_portname,
683 (uint8_t *) & phba->fc_sparam.portName,
684 sizeof (struct lpfc_name));
685 lpfc_mbuf_free(phba, mp->virt, mp->phys);
686 kfree(mp);
687 mempool_free( pmb, phba->mbox_mem_pool);
688 return;
689
690 out:
691 pmb->context1 = NULL;
692 lpfc_mbuf_free(phba, mp->virt, mp->phys);
693 kfree(mp);
694 if (phba->hba_state != LPFC_CLEAR_LA) {
695 lpfc_clear_la(phba, pmb);
696 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
697 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
698 == MBX_NOT_FINISHED) {
699 mempool_free( pmb, phba->mbox_mem_pool);
700 lpfc_disc_flush_list(phba);
701 psli->ring[(psli->extra_ring)].flag &=
702 ~LPFC_STOP_IOCB_EVENT;
703 psli->ring[(psli->fcp_ring)].flag &=
704 ~LPFC_STOP_IOCB_EVENT;
705 psli->ring[(psli->next_ring)].flag &=
706 ~LPFC_STOP_IOCB_EVENT;
707 phba->hba_state = LPFC_HBA_READY;
708 }
709 } else {
710 mempool_free( pmb, phba->mbox_mem_pool);
711 }
712 return;
713 }
714
715 static void
716 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
717 {
718 int i;
719 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
720 struct lpfc_dmabuf *mp;
721 int rc;
722
723 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
724 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
725
726 spin_lock_irq(phba->host->host_lock);
727 switch (la->UlnkSpeed) {
728 case LA_1GHZ_LINK:
729 phba->fc_linkspeed = LA_1GHZ_LINK;
730 break;
731 case LA_2GHZ_LINK:
732 phba->fc_linkspeed = LA_2GHZ_LINK;
733 break;
734 case LA_4GHZ_LINK:
735 phba->fc_linkspeed = LA_4GHZ_LINK;
736 break;
737 default:
738 phba->fc_linkspeed = LA_UNKNW_LINK;
739 break;
740 }
741
742 phba->fc_topology = la->topology;
743
744 if (phba->fc_topology == TOPOLOGY_LOOP) {
745 /* Get Loop Map information */
746
747 if (la->il)
748 phba->fc_flag |= FC_LBIT;
749
750 phba->fc_myDID = la->granted_AL_PA;
751 i = la->un.lilpBde64.tus.f.bdeSize;
752
753 if (i == 0) {
754 phba->alpa_map[0] = 0;
755 } else {
756 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
757 int numalpa, j, k;
758 union {
759 uint8_t pamap[16];
760 struct {
761 uint32_t wd1;
762 uint32_t wd2;
763 uint32_t wd3;
764 uint32_t wd4;
765 } pa;
766 } un;
767 numalpa = phba->alpa_map[0];
768 j = 0;
769 while (j < numalpa) {
770 memset(un.pamap, 0, 16);
771 for (k = 1; j < numalpa; k++) {
772 un.pamap[k - 1] =
773 phba->alpa_map[j + 1];
774 j++;
775 if (k == 16)
776 break;
777 }
778 /* Link Up Event ALPA map */
779 lpfc_printf_log(phba,
780 KERN_WARNING,
781 LOG_LINK_EVENT,
782 "%d:1304 Link Up Event "
783 "ALPA map Data: x%x "
784 "x%x x%x x%x\n",
785 phba->brd_no,
786 un.pa.wd1, un.pa.wd2,
787 un.pa.wd3, un.pa.wd4);
788 }
789 }
790 }
791 } else {
792 phba->fc_myDID = phba->fc_pref_DID;
793 phba->fc_flag |= FC_LBIT;
794 }
795 spin_unlock_irq(phba->host->host_lock);
796
797 lpfc_linkup(phba);
798 if (sparam_mbox) {
799 lpfc_read_sparam(phba, sparam_mbox);
800 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
801 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
802 (MBX_NOWAIT | MBX_STOP_IOCB));
803 if (rc == MBX_NOT_FINISHED) {
804 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
805 lpfc_mbuf_free(phba, mp->virt, mp->phys);
806 kfree(mp);
807 mempool_free(sparam_mbox, phba->mbox_mem_pool);
808 if (cfglink_mbox)
809 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
810 return;
811 }
812 }
813
814 if (cfglink_mbox) {
815 phba->hba_state = LPFC_LOCAL_CFG_LINK;
816 lpfc_config_link(phba, cfglink_mbox);
817 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
818 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
819 (MBX_NOWAIT | MBX_STOP_IOCB));
820 if (rc == MBX_NOT_FINISHED)
821 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
822 }
823 }
824
825 static void
826 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
827 uint32_t control;
828 struct lpfc_sli *psli = &phba->sli;
829
830 lpfc_linkdown(phba);
831
832 /* turn on Link Attention interrupts - no CLEAR_LA needed */
833 spin_lock_irq(phba->host->host_lock);
834 psli->sli_flag |= LPFC_PROCESS_LA;
835 control = readl(phba->HCregaddr);
836 control |= HC_LAINT_ENA;
837 writel(control, phba->HCregaddr);
838 readl(phba->HCregaddr); /* flush */
839 spin_unlock_irq(phba->host->host_lock);
840 }
841
842 /*
843 * This routine handles processing a READ_LA mailbox
844 * command upon completion. It is setup in the LPFC_MBOXQ
845 * as the completion routine when the command is
846 * handed off to the SLI layer.
847 */
848 void
849 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
850 {
851 READ_LA_VAR *la;
852 MAILBOX_t *mb = &pmb->mb;
853 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
854
855 /* Check for error */
856 if (mb->mbxStatus) {
857 lpfc_printf_log(phba,
858 KERN_INFO,
859 LOG_LINK_EVENT,
860 "%d:1307 READ_LA mbox error x%x state x%x\n",
861 phba->brd_no,
862 mb->mbxStatus, phba->hba_state);
863 lpfc_mbx_issue_link_down(phba);
864 phba->hba_state = LPFC_HBA_ERROR;
865 goto lpfc_mbx_cmpl_read_la_free_mbuf;
866 }
867
868 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
869
870 memcpy(&phba->alpa_map[0], mp->virt, 128);
871
872 spin_lock_irq(phba->host->host_lock);
873 if (la->pb)
874 phba->fc_flag |= FC_BYPASSED_MODE;
875 else
876 phba->fc_flag &= ~FC_BYPASSED_MODE;
877 spin_unlock_irq(phba->host->host_lock);
878
879 if (((phba->fc_eventTag + 1) < la->eventTag) ||
880 (phba->fc_eventTag == la->eventTag)) {
881 phba->fc_stat.LinkMultiEvent++;
882 if (la->attType == AT_LINK_UP) {
883 if (phba->fc_eventTag != 0)
884 lpfc_linkdown(phba);
885 }
886 }
887
888 phba->fc_eventTag = la->eventTag;
889
890 if (la->attType == AT_LINK_UP) {
891 phba->fc_stat.LinkUp++;
892 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
893 "%d:1303 Link Up Event x%x received "
894 "Data: x%x x%x x%x x%x\n",
895 phba->brd_no, la->eventTag, phba->fc_eventTag,
896 la->granted_AL_PA, la->UlnkSpeed,
897 phba->alpa_map[0]);
898 lpfc_mbx_process_link_up(phba, la);
899 } else {
900 phba->fc_stat.LinkDown++;
901 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
902 "%d:1305 Link Down Event x%x received "
903 "Data: x%x x%x x%x\n",
904 phba->brd_no, la->eventTag, phba->fc_eventTag,
905 phba->hba_state, phba->fc_flag);
906 lpfc_mbx_issue_link_down(phba);
907 }
908
909 lpfc_mbx_cmpl_read_la_free_mbuf:
910 lpfc_mbuf_free(phba, mp->virt, mp->phys);
911 kfree(mp);
912 mempool_free(pmb, phba->mbox_mem_pool);
913 return;
914 }
915
916 /*
917 * This routine handles processing a REG_LOGIN mailbox
918 * command upon completion. It is setup in the LPFC_MBOXQ
919 * as the completion routine when the command is
920 * handed off to the SLI layer.
921 */
922 void
923 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
924 {
925 struct lpfc_sli *psli;
926 MAILBOX_t *mb;
927 struct lpfc_dmabuf *mp;
928 struct lpfc_nodelist *ndlp;
929
930 psli = &phba->sli;
931 mb = &pmb->mb;
932
933 ndlp = (struct lpfc_nodelist *) pmb->context2;
934 mp = (struct lpfc_dmabuf *) (pmb->context1);
935
936 pmb->context1 = NULL;
937
938 /* Good status, call state machine */
939 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
940 lpfc_mbuf_free(phba, mp->virt, mp->phys);
941 kfree(mp);
942 mempool_free( pmb, phba->mbox_mem_pool);
943
944 return;
945 }
946
947 /*
948 * This routine handles processing a Fabric REG_LOGIN mailbox
949 * command upon completion. It is setup in the LPFC_MBOXQ
950 * as the completion routine when the command is
951 * handed off to the SLI layer.
952 */
953 void
954 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
955 {
956 struct lpfc_sli *psli;
957 MAILBOX_t *mb;
958 struct lpfc_dmabuf *mp;
959 struct lpfc_nodelist *ndlp;
960 struct lpfc_nodelist *ndlp_fdmi;
961
962
963 psli = &phba->sli;
964 mb = &pmb->mb;
965
966 ndlp = (struct lpfc_nodelist *) pmb->context2;
967 mp = (struct lpfc_dmabuf *) (pmb->context1);
968
969 if (mb->mbxStatus) {
970 lpfc_mbuf_free(phba, mp->virt, mp->phys);
971 kfree(mp);
972 mempool_free( pmb, phba->mbox_mem_pool);
973 mempool_free( ndlp, phba->nlp_mem_pool);
974
975 /* FLOGI failed, so just use loop map to make discovery list */
976 lpfc_disc_list_loopmap(phba);
977
978 /* Start discovery */
979 lpfc_disc_start(phba);
980 return;
981 }
982
983 pmb->context1 = NULL;
984
985 ndlp->nlp_rpi = mb->un.varWords[0];
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_FABRIC_CFG_LINK) {
991 /* This NPort has been assigned an NPort_ID by the fabric as a
992 * result of the completed fabric login. Issue a State Change
993 * Registration (SCR) ELS request to the fabric controller
994 * (SCR_DID) so that this NPort gets RSCN events from the
995 * fabric.
996 */
997 lpfc_issue_els_scr(phba, SCR_DID, 0);
998
999 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
1000 if (!ndlp) {
1001 /* Allocate a new node instance. If the pool is empty,
1002 * start the discovery process and skip the Nameserver
1003 * login process. This is attempted again later on.
1004 * Otherwise, issue a Port Login (PLOGI) to NameServer.
1005 */
1006 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1007 if (!ndlp) {
1008 lpfc_disc_start(phba);
1009 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1010 kfree(mp);
1011 mempool_free( pmb, phba->mbox_mem_pool);
1012 return;
1013 } else {
1014 lpfc_nlp_init(phba, ndlp, NameServer_DID);
1015 ndlp->nlp_type |= NLP_FABRIC;
1016 }
1017 }
1018 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1019 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1020 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
1021 if (phba->cfg_fdmi_on) {
1022 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
1023 GFP_KERNEL);
1024 if (ndlp_fdmi) {
1025 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
1026 ndlp_fdmi->nlp_type |= NLP_FABRIC;
1027 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
1028 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
1029 }
1030 }
1031 }
1032
1033 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1034 kfree(mp);
1035 mempool_free( pmb, phba->mbox_mem_pool);
1036 return;
1037 }
1038
1039 /*
1040 * This routine handles processing a NameServer REG_LOGIN mailbox
1041 * command upon completion. It is setup in the LPFC_MBOXQ
1042 * as the completion routine when the command is
1043 * handed off to the SLI layer.
1044 */
1045 void
1046 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1047 {
1048 struct lpfc_sli *psli;
1049 MAILBOX_t *mb;
1050 struct lpfc_dmabuf *mp;
1051 struct lpfc_nodelist *ndlp;
1052
1053 psli = &phba->sli;
1054 mb = &pmb->mb;
1055
1056 ndlp = (struct lpfc_nodelist *) pmb->context2;
1057 mp = (struct lpfc_dmabuf *) (pmb->context1);
1058
1059 if (mb->mbxStatus) {
1060 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1061 kfree(mp);
1062 mempool_free( pmb, phba->mbox_mem_pool);
1063 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1064
1065 /* RegLogin failed, so just use loop map to make discovery
1066 list */
1067 lpfc_disc_list_loopmap(phba);
1068
1069 /* Start discovery */
1070 lpfc_disc_start(phba);
1071 return;
1072 }
1073
1074 pmb->context1 = NULL;
1075
1076 ndlp->nlp_rpi = mb->un.varWords[0];
1077 ndlp->nlp_type |= NLP_FABRIC;
1078 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1079 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1080
1081 if (phba->hba_state < LPFC_HBA_READY) {
1082 /* Link up discovery requires Fabrib registration. */
1083 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1084 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1085 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
1086 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
1087 }
1088
1089 phba->fc_ns_retry = 0;
1090 /* Good status, issue CT Request to NameServer */
1091 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1092 /* Cannot issue NameServer Query, so finish up discovery */
1093 lpfc_disc_start(phba);
1094 }
1095
1096 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1097 kfree(mp);
1098 mempool_free( pmb, phba->mbox_mem_pool);
1099
1100 return;
1101 }
1102
1103 static void
1104 lpfc_register_remote_port(struct lpfc_hba * phba,
1105 struct lpfc_nodelist * ndlp)
1106 {
1107 struct fc_rport *rport;
1108 struct lpfc_rport_data *rdata;
1109 struct fc_rport_identifiers rport_ids;
1110
1111 /* Remote port has reappeared. Re-register w/ FC transport */
1112 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1113 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1114 rport_ids.port_id = ndlp->nlp_DID;
1115 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1116
1117 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1118 if (!rport) {
1119 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1120 "Warning: fc_remote_port_add failed\n");
1121 return;
1122 }
1123
1124 /* initialize static port data */
1125 rport->maxframe_size = ndlp->nlp_maxframe;
1126 rport->supported_classes = ndlp->nlp_class_sup;
1127 rdata = rport->dd_data;
1128 rdata->pnode = ndlp;
1129
1130 if (ndlp->nlp_type & NLP_FCP_TARGET)
1131 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1132 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1133 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1134
1135
1136 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1137 fc_remote_port_rolechg(rport, rport_ids.roles);
1138
1139 if ((rport->scsi_target_id != -1) &&
1140 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1141 ndlp->nlp_sid = rport->scsi_target_id;
1142 }
1143
1144 return;
1145 }
1146
1147 static void
1148 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1149 struct lpfc_nodelist * ndlp)
1150 {
1151 struct fc_rport *rport = ndlp->rport;
1152 struct lpfc_rport_data *rdata = rport->dd_data;
1153
1154 if (rport->scsi_target_id == -1) {
1155 ndlp->rport = NULL;
1156 rdata->pnode = NULL;
1157 }
1158
1159 fc_remote_port_delete(rport);
1160
1161 return;
1162 }
1163
1164 int
1165 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1166 {
1167 enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1168 struct lpfc_sli *psli;
1169
1170 psli = &phba->sli;
1171 /* Sanity check to ensure we are not moving to / from the same list */
1172 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1173 if (list != NLP_NO_LIST)
1174 return 0;
1175
1176 spin_lock_irq(phba->host->host_lock);
1177 switch (nlp->nlp_flag & NLP_LIST_MASK) {
1178 case NLP_NO_LIST: /* Not on any list */
1179 break;
1180 case NLP_UNUSED_LIST:
1181 phba->fc_unused_cnt--;
1182 list_del(&nlp->nlp_listp);
1183 break;
1184 case NLP_PLOGI_LIST:
1185 phba->fc_plogi_cnt--;
1186 list_del(&nlp->nlp_listp);
1187 break;
1188 case NLP_ADISC_LIST:
1189 phba->fc_adisc_cnt--;
1190 list_del(&nlp->nlp_listp);
1191 break;
1192 case NLP_REGLOGIN_LIST:
1193 phba->fc_reglogin_cnt--;
1194 list_del(&nlp->nlp_listp);
1195 break;
1196 case NLP_PRLI_LIST:
1197 phba->fc_prli_cnt--;
1198 list_del(&nlp->nlp_listp);
1199 break;
1200 case NLP_UNMAPPED_LIST:
1201 phba->fc_unmap_cnt--;
1202 list_del(&nlp->nlp_listp);
1203 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1204 nlp->nlp_type &= ~NLP_FC_NODE;
1205 phba->nport_event_cnt++;
1206 if (nlp->rport)
1207 rport_del = unmapped;
1208 break;
1209 case NLP_MAPPED_LIST:
1210 phba->fc_map_cnt--;
1211 list_del(&nlp->nlp_listp);
1212 phba->nport_event_cnt++;
1213 if (nlp->rport)
1214 rport_del = mapped;
1215 break;
1216 case NLP_NPR_LIST:
1217 phba->fc_npr_cnt--;
1218 list_del(&nlp->nlp_listp);
1219 /* Stop delay tmo if taking node off NPR list */
1220 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1221 (list != NLP_NPR_LIST)) {
1222 spin_unlock_irq(phba->host->host_lock);
1223 lpfc_cancel_retry_delay_tmo(phba, nlp);
1224 spin_lock_irq(phba->host->host_lock);
1225 }
1226 break;
1227 }
1228
1229 nlp->nlp_flag &= ~NLP_LIST_MASK;
1230
1231 /* Add NPort <did> to <num> list */
1232 lpfc_printf_log(phba,
1233 KERN_INFO,
1234 LOG_NODE,
1235 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1236 phba->brd_no,
1237 nlp->nlp_DID, list, nlp->nlp_flag);
1238
1239 switch (list) {
1240 case NLP_NO_LIST: /* No list, just remove it */
1241 spin_unlock_irq(phba->host->host_lock);
1242 lpfc_nlp_remove(phba, nlp);
1243 spin_lock_irq(phba->host->host_lock);
1244 /* as node removed - stop further transport calls */
1245 rport_del = none;
1246 break;
1247 case NLP_UNUSED_LIST:
1248 nlp->nlp_flag |= list;
1249 /* Put it at the end of the unused list */
1250 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1251 phba->fc_unused_cnt++;
1252 break;
1253 case NLP_PLOGI_LIST:
1254 nlp->nlp_flag |= list;
1255 /* Put it at the end of the plogi list */
1256 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1257 phba->fc_plogi_cnt++;
1258 break;
1259 case NLP_ADISC_LIST:
1260 nlp->nlp_flag |= list;
1261 /* Put it at the end of the adisc list */
1262 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1263 phba->fc_adisc_cnt++;
1264 break;
1265 case NLP_REGLOGIN_LIST:
1266 nlp->nlp_flag |= list;
1267 /* Put it at the end of the reglogin list */
1268 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1269 phba->fc_reglogin_cnt++;
1270 break;
1271 case NLP_PRLI_LIST:
1272 nlp->nlp_flag |= list;
1273 /* Put it at the end of the prli list */
1274 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1275 phba->fc_prli_cnt++;
1276 break;
1277 case NLP_UNMAPPED_LIST:
1278 rport_add = unmapped;
1279 /* ensure all vestiges of "mapped" significance are gone */
1280 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1281 nlp->nlp_flag |= list;
1282 /* Put it at the end of the unmap list */
1283 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1284 phba->fc_unmap_cnt++;
1285 phba->nport_event_cnt++;
1286 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1287 nlp->nlp_type |= NLP_FC_NODE;
1288 break;
1289 case NLP_MAPPED_LIST:
1290 rport_add = mapped;
1291 nlp->nlp_flag |= list;
1292 /* Put it at the end of the map list */
1293 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1294 phba->fc_map_cnt++;
1295 phba->nport_event_cnt++;
1296 nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1297 break;
1298 case NLP_NPR_LIST:
1299 nlp->nlp_flag |= list;
1300 /* Put it at the end of the npr list */
1301 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1302 phba->fc_npr_cnt++;
1303
1304 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1305 break;
1306 case NLP_JUST_DQ:
1307 break;
1308 }
1309
1310 spin_unlock_irq(phba->host->host_lock);
1311
1312 /*
1313 * We make all the calls into the transport after we have
1314 * moved the node between lists. This so that we don't
1315 * release the lock while in-between lists.
1316 */
1317
1318 /* Don't upcall midlayer if we're unloading */
1319 if (!(phba->fc_flag & FC_UNLOADING)) {
1320 /*
1321 * We revalidate the rport pointer as the "add" function
1322 * may have removed the remote port.
1323 */
1324 if ((rport_del != none) && nlp->rport)
1325 lpfc_unregister_remote_port(phba, nlp);
1326
1327 if (rport_add != none) {
1328 /*
1329 * Tell the fc transport about the port, if we haven't
1330 * already. If we have, and it's a scsi entity, be
1331 * sure to unblock any attached scsi devices
1332 */
1333 if ((!nlp->rport) || (nlp->rport->port_state ==
1334 FC_PORTSTATE_BLOCKED))
1335 lpfc_register_remote_port(phba, nlp);
1336
1337 /*
1338 * if we added to Mapped list, but the remote port
1339 * registration failed or assigned a target id outside
1340 * our presentable range - move the node to the
1341 * Unmapped List
1342 */
1343 if ((rport_add == mapped) &&
1344 ((!nlp->rport) ||
1345 (nlp->rport->scsi_target_id == -1) ||
1346 (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
1347 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1348 spin_lock_irq(phba->host->host_lock);
1349 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1350 spin_unlock_irq(phba->host->host_lock);
1351 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1352 }
1353 }
1354 }
1355 return 0;
1356 }
1357
1358 /*
1359 * Start / ReStart rescue timer for Discovery / RSCN handling
1360 */
1361 void
1362 lpfc_set_disctmo(struct lpfc_hba * phba)
1363 {
1364 uint32_t tmo;
1365
1366 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1367 /* For FAN, timeout should be greater then edtov */
1368 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1369 } else {
1370 /* Normal discovery timeout should be > then ELS/CT timeout
1371 * FC spec states we need 3 * ratov for CT requests
1372 */
1373 tmo = ((phba->fc_ratov * 3) + 3);
1374 }
1375
1376 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1377 spin_lock_irq(phba->host->host_lock);
1378 phba->fc_flag |= FC_DISC_TMO;
1379 spin_unlock_irq(phba->host->host_lock);
1380
1381 /* Start Discovery Timer state <hba_state> */
1382 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1383 "%d:0247 Start Discovery Timer state x%x "
1384 "Data: x%x x%lx x%x x%x\n",
1385 phba->brd_no,
1386 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1387 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1388
1389 return;
1390 }
1391
1392 /*
1393 * Cancel rescue timer for Discovery / RSCN handling
1394 */
1395 int
1396 lpfc_can_disctmo(struct lpfc_hba * phba)
1397 {
1398 /* Turn off discovery timer if its running */
1399 if (phba->fc_flag & FC_DISC_TMO) {
1400 spin_lock_irq(phba->host->host_lock);
1401 phba->fc_flag &= ~FC_DISC_TMO;
1402 spin_unlock_irq(phba->host->host_lock);
1403 del_timer_sync(&phba->fc_disctmo);
1404 phba->work_hba_events &= ~WORKER_DISC_TMO;
1405 }
1406
1407 /* Cancel Discovery Timer state <hba_state> */
1408 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1409 "%d:0248 Cancel Discovery Timer state x%x "
1410 "Data: x%x x%x x%x\n",
1411 phba->brd_no, phba->hba_state, phba->fc_flag,
1412 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1413
1414 return 0;
1415 }
1416
1417 /*
1418 * Check specified ring for outstanding IOCB on the SLI queue
1419 * Return true if iocb matches the specified nport
1420 */
1421 int
1422 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1423 struct lpfc_sli_ring * pring,
1424 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1425 {
1426 struct lpfc_sli *psli;
1427 IOCB_t *icmd;
1428
1429 psli = &phba->sli;
1430 icmd = &iocb->iocb;
1431 if (pring->ringno == LPFC_ELS_RING) {
1432 switch (icmd->ulpCommand) {
1433 case CMD_GEN_REQUEST64_CR:
1434 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1435 return 1;
1436 case CMD_ELS_REQUEST64_CR:
1437 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1438 return 1;
1439 case CMD_XMIT_ELS_RSP64_CX:
1440 if (iocb->context1 == (uint8_t *) ndlp)
1441 return 1;
1442 }
1443 } else if (pring->ringno == psli->extra_ring) {
1444
1445 } else if (pring->ringno == psli->fcp_ring) {
1446 /* Skip match check if waiting to relogin to FCP target */
1447 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1448 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1449 return 0;
1450 }
1451 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1452 return 1;
1453 }
1454 } else if (pring->ringno == psli->next_ring) {
1455
1456 }
1457 return 0;
1458 }
1459
1460 /*
1461 * Free resources / clean up outstanding I/Os
1462 * associated with nlp_rpi in the LPFC_NODELIST entry.
1463 */
1464 static int
1465 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1466 {
1467 struct lpfc_sli *psli;
1468 struct lpfc_sli_ring *pring;
1469 struct lpfc_iocbq *iocb, *next_iocb;
1470 IOCB_t *icmd;
1471 uint32_t rpi, i;
1472
1473 /*
1474 * Everything that matches on txcmplq will be returned
1475 * by firmware with a no rpi error.
1476 */
1477 psli = &phba->sli;
1478 rpi = ndlp->nlp_rpi;
1479 if (rpi) {
1480 /* Now process each ring */
1481 for (i = 0; i < psli->num_rings; i++) {
1482 pring = &psli->ring[i];
1483
1484 spin_lock_irq(phba->host->host_lock);
1485 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1486 list) {
1487 /*
1488 * Check to see if iocb matches the nport we are
1489 * looking for
1490 */
1491 if ((lpfc_check_sli_ndlp
1492 (phba, pring, iocb, ndlp))) {
1493 /* It matches, so deque and call compl
1494 with an error */
1495 list_del(&iocb->list);
1496 pring->txq_cnt--;
1497 if (iocb->iocb_cmpl) {
1498 icmd = &iocb->iocb;
1499 icmd->ulpStatus =
1500 IOSTAT_LOCAL_REJECT;
1501 icmd->un.ulpWord[4] =
1502 IOERR_SLI_ABORTED;
1503 spin_unlock_irq(phba->host->
1504 host_lock);
1505 (iocb->iocb_cmpl) (phba,
1506 iocb, iocb);
1507 spin_lock_irq(phba->host->
1508 host_lock);
1509 } else
1510 lpfc_sli_release_iocbq(phba,
1511 iocb);
1512 }
1513 }
1514 spin_unlock_irq(phba->host->host_lock);
1515
1516 }
1517 }
1518 return 0;
1519 }
1520
1521 /*
1522 * Free rpi associated with LPFC_NODELIST entry.
1523 * This routine is called from lpfc_freenode(), when we are removing
1524 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1525 * LOGO that completes successfully, and we are waiting to PLOGI back
1526 * to the remote NPort. In addition, it is called after we receive
1527 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1528 * we are waiting to PLOGI back to the remote NPort.
1529 */
1530 int
1531 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1532 {
1533 LPFC_MBOXQ_t *mbox;
1534 int rc;
1535
1536 if (ndlp->nlp_rpi) {
1537 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1538 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1539 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1540 rc = lpfc_sli_issue_mbox
1541 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1542 if (rc == MBX_NOT_FINISHED)
1543 mempool_free( mbox, phba->mbox_mem_pool);
1544 }
1545 lpfc_no_rpi(phba, ndlp);
1546 ndlp->nlp_rpi = 0;
1547 return 1;
1548 }
1549 return 0;
1550 }
1551
1552 /*
1553 * Free resources associated with LPFC_NODELIST entry
1554 * so it can be freed.
1555 */
1556 static int
1557 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1558 {
1559 LPFC_MBOXQ_t *mb;
1560 LPFC_MBOXQ_t *nextmb;
1561 struct lpfc_dmabuf *mp;
1562
1563 /* Cleanup node for NPort <nlp_DID> */
1564 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1565 "%d:0900 Cleanup node for NPort x%x "
1566 "Data: x%x x%x x%x\n",
1567 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1568 ndlp->nlp_state, ndlp->nlp_rpi);
1569
1570 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1571
1572 /*
1573 * if unloading the driver - just leave the remote port in place.
1574 * The driver unload will force the attached devices to detach
1575 * and flush cache's w/o generating flush errors.
1576 */
1577 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1578 lpfc_unregister_remote_port(phba, ndlp);
1579 ndlp->nlp_sid = NLP_NO_SID;
1580 }
1581
1582 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1583 if ((mb = phba->sli.mbox_active)) {
1584 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1585 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1586 mb->context2 = NULL;
1587 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1588 }
1589 }
1590
1591 spin_lock_irq(phba->host->host_lock);
1592 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1593 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1594 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1595 mp = (struct lpfc_dmabuf *) (mb->context1);
1596 if (mp) {
1597 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1598 kfree(mp);
1599 }
1600 list_del(&mb->list);
1601 mempool_free(mb, phba->mbox_mem_pool);
1602 }
1603 }
1604 spin_unlock_irq(phba->host->host_lock);
1605
1606 lpfc_els_abort(phba,ndlp,0);
1607 spin_lock_irq(phba->host->host_lock);
1608 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1609 spin_unlock_irq(phba->host->host_lock);
1610
1611 ndlp->nlp_last_elscmd = 0;
1612 del_timer_sync(&ndlp->nlp_delayfunc);
1613
1614 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1615 list_del_init(&ndlp->els_retry_evt.evt_listp);
1616
1617 lpfc_unreg_rpi(phba, ndlp);
1618
1619 return 0;
1620 }
1621
1622 /*
1623 * Check to see if we can free the nlp back to the freelist.
1624 * If we are in the middle of using the nlp in the discovery state
1625 * machine, defer the free till we reach the end of the state machine.
1626 */
1627 int
1628 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1629 {
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 mempool_free( ndlp, phba->nlp_mem_pool);
1642 }
1643 return 0;
1644 }
1645
1646 static int
1647 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1648 {
1649 D_ID mydid;
1650 D_ID ndlpdid;
1651 D_ID matchdid;
1652
1653 if (did == Bcast_DID)
1654 return 0;
1655
1656 if (ndlp->nlp_DID == 0) {
1657 return 0;
1658 }
1659
1660 /* First check for Direct match */
1661 if (ndlp->nlp_DID == did)
1662 return 1;
1663
1664 /* Next check for area/domain identically equals 0 match */
1665 mydid.un.word = phba->fc_myDID;
1666 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1667 return 0;
1668 }
1669
1670 matchdid.un.word = did;
1671 ndlpdid.un.word = ndlp->nlp_DID;
1672 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1673 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1674 (mydid.un.b.area == matchdid.un.b.area)) {
1675 if ((ndlpdid.un.b.domain == 0) &&
1676 (ndlpdid.un.b.area == 0)) {
1677 if (ndlpdid.un.b.id)
1678 return 1;
1679 }
1680 return 0;
1681 }
1682
1683 matchdid.un.word = ndlp->nlp_DID;
1684 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1685 (mydid.un.b.area == ndlpdid.un.b.area)) {
1686 if ((matchdid.un.b.domain == 0) &&
1687 (matchdid.un.b.area == 0)) {
1688 if (matchdid.un.b.id)
1689 return 1;
1690 }
1691 }
1692 }
1693 return 0;
1694 }
1695
1696 /* Search for a nodelist entry on a specific list */
1697 struct lpfc_nodelist *
1698 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1699 {
1700 struct lpfc_nodelist *ndlp;
1701 struct list_head *lists[]={&phba->fc_nlpunmap_list,
1702 &phba->fc_nlpmap_list,
1703 &phba->fc_plogi_list,
1704 &phba->fc_adisc_list,
1705 &phba->fc_reglogin_list,
1706 &phba->fc_prli_list,
1707 &phba->fc_npr_list,
1708 &phba->fc_unused_list};
1709 uint32_t search[]={NLP_SEARCH_UNMAPPED,
1710 NLP_SEARCH_MAPPED,
1711 NLP_SEARCH_PLOGI,
1712 NLP_SEARCH_ADISC,
1713 NLP_SEARCH_REGLOGIN,
1714 NLP_SEARCH_PRLI,
1715 NLP_SEARCH_NPR,
1716 NLP_SEARCH_UNUSED};
1717 int i;
1718 uint32_t data1;
1719
1720 spin_lock_irq(phba->host->host_lock);
1721 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
1722 if (!(order & search[i]))
1723 continue;
1724 list_for_each_entry(ndlp, lists[i], nlp_listp) {
1725 if (lpfc_matchdid(phba, ndlp, did)) {
1726 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1727 ((uint32_t) ndlp->nlp_xri << 16) |
1728 ((uint32_t) ndlp->nlp_type << 8) |
1729 ((uint32_t) ndlp->nlp_rpi & 0xff));
1730 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1731 "%d:0929 FIND node DID "
1732 " Data: x%p x%x x%x x%x\n",
1733 phba->brd_no,
1734 ndlp, ndlp->nlp_DID,
1735 ndlp->nlp_flag, data1);
1736 spin_unlock_irq(phba->host->host_lock);
1737 return ndlp;
1738 }
1739 }
1740 }
1741 spin_unlock_irq(phba->host->host_lock);
1742
1743 /* FIND node did <did> NOT FOUND */
1744 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1745 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1746 phba->brd_no, did, order);
1747 return NULL;
1748 }
1749
1750 struct lpfc_nodelist *
1751 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1752 {
1753 struct lpfc_nodelist *ndlp;
1754 uint32_t flg;
1755
1756 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1757 if (!ndlp) {
1758 if ((phba->fc_flag & FC_RSCN_MODE) &&
1759 ((lpfc_rscn_payload_check(phba, did) == 0)))
1760 return NULL;
1761 ndlp = (struct lpfc_nodelist *)
1762 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1763 if (!ndlp)
1764 return NULL;
1765 lpfc_nlp_init(phba, ndlp, did);
1766 ndlp->nlp_state = NLP_STE_NPR_NODE;
1767 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1768 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1769 return ndlp;
1770 }
1771 if (phba->fc_flag & FC_RSCN_MODE) {
1772 if (lpfc_rscn_payload_check(phba, did)) {
1773 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1774
1775 /* Since this node is marked for discovery,
1776 * delay timeout is not needed.
1777 */
1778 if (ndlp->nlp_flag & NLP_DELAY_TMO)
1779 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1780 } else
1781 ndlp = NULL;
1782 } else {
1783 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1784 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
1785 return NULL;
1786 ndlp->nlp_state = NLP_STE_NPR_NODE;
1787 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1788 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1789 }
1790 return ndlp;
1791 }
1792
1793 /* Build a list of nodes to discover based on the loopmap */
1794 void
1795 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1796 {
1797 int j;
1798 uint32_t alpa, index;
1799
1800 if (phba->hba_state <= LPFC_LINK_DOWN) {
1801 return;
1802 }
1803 if (phba->fc_topology != TOPOLOGY_LOOP) {
1804 return;
1805 }
1806
1807 /* Check for loop map present or not */
1808 if (phba->alpa_map[0]) {
1809 for (j = 1; j <= phba->alpa_map[0]; j++) {
1810 alpa = phba->alpa_map[j];
1811
1812 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1813 continue;
1814 }
1815 lpfc_setup_disc_node(phba, alpa);
1816 }
1817 } else {
1818 /* No alpamap, so try all alpa's */
1819 for (j = 0; j < FC_MAXLOOP; j++) {
1820 /* If cfg_scan_down is set, start from highest
1821 * ALPA (0xef) to lowest (0x1).
1822 */
1823 if (phba->cfg_scan_down)
1824 index = j;
1825 else
1826 index = FC_MAXLOOP - j - 1;
1827 alpa = lpfcAlpaArray[index];
1828 if ((phba->fc_myDID & 0xff) == alpa) {
1829 continue;
1830 }
1831
1832 lpfc_setup_disc_node(phba, alpa);
1833 }
1834 }
1835 return;
1836 }
1837
1838 /* Start Link up / RSCN discovery on NPR list */
1839 void
1840 lpfc_disc_start(struct lpfc_hba * phba)
1841 {
1842 struct lpfc_sli *psli;
1843 LPFC_MBOXQ_t *mbox;
1844 struct lpfc_nodelist *ndlp, *next_ndlp;
1845 uint32_t did_changed, num_sent;
1846 uint32_t clear_la_pending;
1847 int rc;
1848
1849 psli = &phba->sli;
1850
1851 if (phba->hba_state <= LPFC_LINK_DOWN) {
1852 return;
1853 }
1854 if (phba->hba_state == LPFC_CLEAR_LA)
1855 clear_la_pending = 1;
1856 else
1857 clear_la_pending = 0;
1858
1859 if (phba->hba_state < LPFC_HBA_READY) {
1860 phba->hba_state = LPFC_DISC_AUTH;
1861 }
1862 lpfc_set_disctmo(phba);
1863
1864 if (phba->fc_prevDID == phba->fc_myDID) {
1865 did_changed = 0;
1866 } else {
1867 did_changed = 1;
1868 }
1869 phba->fc_prevDID = phba->fc_myDID;
1870 phba->num_disc_nodes = 0;
1871
1872 /* Start Discovery state <hba_state> */
1873 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1874 "%d:0202 Start Discovery hba state x%x "
1875 "Data: x%x x%x x%x\n",
1876 phba->brd_no, phba->hba_state, phba->fc_flag,
1877 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1878
1879 /* If our did changed, we MUST do PLOGI */
1880 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1881 nlp_listp) {
1882 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1883 if (did_changed) {
1884 spin_lock_irq(phba->host->host_lock);
1885 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1886 spin_unlock_irq(phba->host->host_lock);
1887 }
1888 }
1889 }
1890
1891 /* First do ADISCs - if any */
1892 num_sent = lpfc_els_disc_adisc(phba);
1893
1894 if (num_sent)
1895 return;
1896
1897 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1898 /* If we get here, there is nothing to ADISC */
1899 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1900 phba->hba_state = LPFC_CLEAR_LA;
1901 lpfc_clear_la(phba, mbox);
1902 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1903 rc = lpfc_sli_issue_mbox(phba, mbox,
1904 (MBX_NOWAIT | MBX_STOP_IOCB));
1905 if (rc == MBX_NOT_FINISHED) {
1906 mempool_free( mbox, phba->mbox_mem_pool);
1907 lpfc_disc_flush_list(phba);
1908 psli->ring[(psli->extra_ring)].flag &=
1909 ~LPFC_STOP_IOCB_EVENT;
1910 psli->ring[(psli->fcp_ring)].flag &=
1911 ~LPFC_STOP_IOCB_EVENT;
1912 psli->ring[(psli->next_ring)].flag &=
1913 ~LPFC_STOP_IOCB_EVENT;
1914 phba->hba_state = LPFC_HBA_READY;
1915 }
1916 }
1917 } else {
1918 /* Next do PLOGIs - if any */
1919 num_sent = lpfc_els_disc_plogi(phba);
1920
1921 if (num_sent)
1922 return;
1923
1924 if (phba->fc_flag & FC_RSCN_MODE) {
1925 /* Check to see if more RSCNs came in while we
1926 * were processing this one.
1927 */
1928 if ((phba->fc_rscn_id_cnt == 0) &&
1929 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
1930 spin_lock_irq(phba->host->host_lock);
1931 phba->fc_flag &= ~FC_RSCN_MODE;
1932 spin_unlock_irq(phba->host->host_lock);
1933 } else
1934 lpfc_els_handle_rscn(phba);
1935 }
1936 }
1937 return;
1938 }
1939
1940 /*
1941 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
1942 * ring the match the sppecified nodelist.
1943 */
1944 static void
1945 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1946 {
1947 struct lpfc_sli *psli;
1948 IOCB_t *icmd;
1949 struct lpfc_iocbq *iocb, *next_iocb;
1950 struct lpfc_sli_ring *pring;
1951 struct lpfc_dmabuf *mp;
1952
1953 psli = &phba->sli;
1954 pring = &psli->ring[LPFC_ELS_RING];
1955
1956 /* Error matching iocb on txq or txcmplq
1957 * First check the txq.
1958 */
1959 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
1960 if (iocb->context1 != ndlp) {
1961 continue;
1962 }
1963 icmd = &iocb->iocb;
1964 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
1965 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
1966
1967 list_del(&iocb->list);
1968 pring->txq_cnt--;
1969 lpfc_els_free_iocb(phba, iocb);
1970 }
1971 }
1972
1973 /* Next check the txcmplq */
1974 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1975 if (iocb->context1 != ndlp) {
1976 continue;
1977 }
1978 icmd = &iocb->iocb;
1979 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
1980 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
1981
1982 iocb->iocb_cmpl = NULL;
1983 /* context2 = cmd, context2->next = rsp, context3 =
1984 bpl */
1985 if (iocb->context2) {
1986 /* Free the response IOCB before handling the
1987 command. */
1988
1989 mp = (struct lpfc_dmabuf *) (iocb->context2);
1990 mp = list_get_first(&mp->list,
1991 struct lpfc_dmabuf,
1992 list);
1993 if (mp) {
1994 /* Delay before releasing rsp buffer to
1995 * give UNREG mbox a chance to take
1996 * effect.
1997 */
1998 list_add(&mp->list,
1999 &phba->freebufList);
2000 }
2001 lpfc_mbuf_free(phba,
2002 ((struct lpfc_dmabuf *)
2003 iocb->context2)->virt,
2004 ((struct lpfc_dmabuf *)
2005 iocb->context2)->phys);
2006 kfree(iocb->context2);
2007 }
2008
2009 if (iocb->context3) {
2010 lpfc_mbuf_free(phba,
2011 ((struct lpfc_dmabuf *)
2012 iocb->context3)->virt,
2013 ((struct lpfc_dmabuf *)
2014 iocb->context3)->phys);
2015 kfree(iocb->context3);
2016 }
2017 }
2018 }
2019
2020 return;
2021 }
2022
2023 void
2024 lpfc_disc_flush_list(struct lpfc_hba * phba)
2025 {
2026 struct lpfc_nodelist *ndlp, *next_ndlp;
2027
2028 if (phba->fc_plogi_cnt) {
2029 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2030 nlp_listp) {
2031 lpfc_free_tx(phba, ndlp);
2032 lpfc_nlp_remove(phba, ndlp);
2033 }
2034 }
2035 if (phba->fc_adisc_cnt) {
2036 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2037 nlp_listp) {
2038 lpfc_free_tx(phba, ndlp);
2039 lpfc_nlp_remove(phba, ndlp);
2040 }
2041 }
2042 return;
2043 }
2044
2045 /*****************************************************************************/
2046 /*
2047 * NAME: lpfc_disc_timeout
2048 *
2049 * FUNCTION: Fibre Channel driver discovery timeout routine.
2050 *
2051 * EXECUTION ENVIRONMENT: interrupt only
2052 *
2053 * CALLED FROM:
2054 * Timer function
2055 *
2056 * RETURNS:
2057 * none
2058 */
2059 /*****************************************************************************/
2060 void
2061 lpfc_disc_timeout(unsigned long ptr)
2062 {
2063 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2064 unsigned long flags = 0;
2065
2066 if (unlikely(!phba))
2067 return;
2068
2069 spin_lock_irqsave(phba->host->host_lock, flags);
2070 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2071 phba->work_hba_events |= WORKER_DISC_TMO;
2072 if (phba->work_wait)
2073 wake_up(phba->work_wait);
2074 }
2075 spin_unlock_irqrestore(phba->host->host_lock, flags);
2076 return;
2077 }
2078
2079 static void
2080 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2081 {
2082 struct lpfc_sli *psli;
2083 struct lpfc_nodelist *ndlp, *next_ndlp;
2084 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2085 int rc, clrlaerr = 0;
2086
2087 if (unlikely(!phba))
2088 return;
2089
2090 if (!(phba->fc_flag & FC_DISC_TMO))
2091 return;
2092
2093 psli = &phba->sli;
2094
2095 spin_lock_irq(phba->host->host_lock);
2096 phba->fc_flag &= ~FC_DISC_TMO;
2097 spin_unlock_irq(phba->host->host_lock);
2098
2099 switch (phba->hba_state) {
2100
2101 case LPFC_LOCAL_CFG_LINK:
2102 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2103 /* FAN timeout */
2104 lpfc_printf_log(phba,
2105 KERN_WARNING,
2106 LOG_DISCOVERY,
2107 "%d:0221 FAN timeout\n",
2108 phba->brd_no);
2109
2110 /* Start discovery by sending FLOGI, clean up old rpis */
2111 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2112 nlp_listp) {
2113 if (ndlp->nlp_type & NLP_FABRIC) {
2114 /* Clean up the ndlp on Fabric connections */
2115 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
2116 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2117 /* Fail outstanding IO now since device
2118 * is marked for PLOGI.
2119 */
2120 lpfc_unreg_rpi(phba, ndlp);
2121 }
2122 }
2123 phba->hba_state = LPFC_FLOGI;
2124 lpfc_set_disctmo(phba);
2125 lpfc_initial_flogi(phba);
2126 break;
2127
2128 case LPFC_FLOGI:
2129 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2130 /* Initial FLOGI timeout */
2131 lpfc_printf_log(phba,
2132 KERN_ERR,
2133 LOG_DISCOVERY,
2134 "%d:0222 Initial FLOGI timeout\n",
2135 phba->brd_no);
2136
2137 /* Assume no Fabric and go on with discovery.
2138 * Check for outstanding ELS FLOGI to abort.
2139 */
2140
2141 /* FLOGI failed, so just use loop map to make discovery list */
2142 lpfc_disc_list_loopmap(phba);
2143
2144 /* Start discovery */
2145 lpfc_disc_start(phba);
2146 break;
2147
2148 case LPFC_FABRIC_CFG_LINK:
2149 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2150 NameServer login */
2151 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2152 "%d:0223 Timeout while waiting for NameServer "
2153 "login\n", phba->brd_no);
2154
2155 /* Next look for NameServer ndlp */
2156 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2157 if (ndlp)
2158 lpfc_nlp_remove(phba, ndlp);
2159 /* Start discovery */
2160 lpfc_disc_start(phba);
2161 break;
2162
2163 case LPFC_NS_QRY:
2164 /* Check for wait for NameServer Rsp timeout */
2165 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2166 "%d:0224 NameServer Query timeout "
2167 "Data: x%x x%x\n",
2168 phba->brd_no,
2169 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2170
2171 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2172 NameServer_DID);
2173 if (ndlp) {
2174 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2175 /* Try it one more time */
2176 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2177 if (rc == 0)
2178 break;
2179 }
2180 phba->fc_ns_retry = 0;
2181 }
2182
2183 /* Nothing to authenticate, so CLEAR_LA right now */
2184 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2185 if (!clearlambox) {
2186 clrlaerr = 1;
2187 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2188 "%d:0226 Device Discovery "
2189 "completion error\n",
2190 phba->brd_no);
2191 phba->hba_state = LPFC_HBA_ERROR;
2192 break;
2193 }
2194
2195 phba->hba_state = LPFC_CLEAR_LA;
2196 lpfc_clear_la(phba, clearlambox);
2197 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2198 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2199 (MBX_NOWAIT | MBX_STOP_IOCB));
2200 if (rc == MBX_NOT_FINISHED) {
2201 mempool_free(clearlambox, phba->mbox_mem_pool);
2202 clrlaerr = 1;
2203 break;
2204 }
2205
2206 /* Setup and issue mailbox INITIALIZE LINK command */
2207 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2208 if (!initlinkmbox) {
2209 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2210 "%d:0206 Device Discovery "
2211 "completion error\n",
2212 phba->brd_no);
2213 phba->hba_state = LPFC_HBA_ERROR;
2214 break;
2215 }
2216
2217 lpfc_linkdown(phba);
2218 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2219 phba->cfg_link_speed);
2220 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2221 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2222 (MBX_NOWAIT | MBX_STOP_IOCB));
2223 if (rc == MBX_NOT_FINISHED)
2224 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2225
2226 break;
2227
2228 case LPFC_DISC_AUTH:
2229 /* Node Authentication timeout */
2230 lpfc_printf_log(phba,
2231 KERN_ERR,
2232 LOG_DISCOVERY,
2233 "%d:0227 Node Authentication timeout\n",
2234 phba->brd_no);
2235 lpfc_disc_flush_list(phba);
2236 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2237 if (!clearlambox) {
2238 clrlaerr = 1;
2239 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2240 "%d:0207 Device Discovery "
2241 "completion error\n",
2242 phba->brd_no);
2243 phba->hba_state = LPFC_HBA_ERROR;
2244 break;
2245 }
2246 phba->hba_state = LPFC_CLEAR_LA;
2247 lpfc_clear_la(phba, clearlambox);
2248 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2249 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2250 (MBX_NOWAIT | MBX_STOP_IOCB));
2251 if (rc == MBX_NOT_FINISHED) {
2252 mempool_free(clearlambox, phba->mbox_mem_pool);
2253 clrlaerr = 1;
2254 }
2255 break;
2256
2257 case LPFC_CLEAR_LA:
2258 /* CLEAR LA timeout */
2259 lpfc_printf_log(phba,
2260 KERN_ERR,
2261 LOG_DISCOVERY,
2262 "%d:0228 CLEAR LA timeout\n",
2263 phba->brd_no);
2264 clrlaerr = 1;
2265 break;
2266
2267 case LPFC_HBA_READY:
2268 if (phba->fc_flag & FC_RSCN_MODE) {
2269 lpfc_printf_log(phba,
2270 KERN_ERR,
2271 LOG_DISCOVERY,
2272 "%d:0231 RSCN timeout Data: x%x x%x\n",
2273 phba->brd_no,
2274 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2275
2276 /* Cleanup any outstanding ELS commands */
2277 lpfc_els_flush_cmd(phba);
2278
2279 lpfc_els_flush_rscn(phba);
2280 lpfc_disc_flush_list(phba);
2281 }
2282 break;
2283 }
2284
2285 if (clrlaerr) {
2286 lpfc_disc_flush_list(phba);
2287 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2288 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2289 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2290 phba->hba_state = LPFC_HBA_READY;
2291 }
2292
2293 return;
2294 }
2295
2296 /*
2297 * This routine handles processing a NameServer REG_LOGIN mailbox
2298 * command upon completion. It is setup in the LPFC_MBOXQ
2299 * as the completion routine when the command is
2300 * handed off to the SLI layer.
2301 */
2302 void
2303 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2304 {
2305 struct lpfc_sli *psli;
2306 MAILBOX_t *mb;
2307 struct lpfc_dmabuf *mp;
2308 struct lpfc_nodelist *ndlp;
2309
2310 psli = &phba->sli;
2311 mb = &pmb->mb;
2312
2313 ndlp = (struct lpfc_nodelist *) pmb->context2;
2314 mp = (struct lpfc_dmabuf *) (pmb->context1);
2315
2316 pmb->context1 = NULL;
2317
2318 ndlp->nlp_rpi = mb->un.varWords[0];
2319 ndlp->nlp_type |= NLP_FABRIC;
2320 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2321 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2322
2323 /* Start issuing Fabric-Device Management Interface (FDMI)
2324 * command to 0xfffffa (FDMI well known port)
2325 */
2326 if (phba->cfg_fdmi_on == 1) {
2327 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2328 } else {
2329 /*
2330 * Delay issuing FDMI command if fdmi-on=2
2331 * (supporting RPA/hostnmae)
2332 */
2333 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2334 }
2335
2336 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2337 kfree(mp);
2338 mempool_free( pmb, phba->mbox_mem_pool);
2339
2340 return;
2341 }
2342
2343 /*
2344 * This routine looks up the ndlp lists
2345 * for the given RPI. If rpi found
2346 * it return the node list pointer
2347 * else return NULL.
2348 */
2349 struct lpfc_nodelist *
2350 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2351 {
2352 struct lpfc_nodelist *ndlp;
2353 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2354 &phba->fc_nlpmap_list,
2355 &phba->fc_plogi_list,
2356 &phba->fc_adisc_list,
2357 &phba->fc_reglogin_list};
2358 int i;
2359
2360 spin_lock_irq(phba->host->host_lock);
2361 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2362 list_for_each_entry(ndlp, lists[i], nlp_listp)
2363 if (ndlp->nlp_rpi == rpi) {
2364 spin_unlock_irq(phba->host->host_lock);
2365 return ndlp;
2366 }
2367 spin_unlock_irq(phba->host->host_lock);
2368 return NULL;
2369 }
2370
2371 /*
2372 * This routine looks up the ndlp lists
2373 * for the given WWPN. If WWPN found
2374 * it return the node list pointer
2375 * else return NULL.
2376 */
2377 struct lpfc_nodelist *
2378 lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2379 struct lpfc_name * wwpn)
2380 {
2381 struct lpfc_nodelist *ndlp;
2382 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2383 &phba->fc_nlpmap_list,
2384 &phba->fc_npr_list,
2385 &phba->fc_plogi_list,
2386 &phba->fc_adisc_list,
2387 &phba->fc_reglogin_list,
2388 &phba->fc_prli_list};
2389 uint32_t search[]={NLP_SEARCH_UNMAPPED,
2390 NLP_SEARCH_MAPPED,
2391 NLP_SEARCH_NPR,
2392 NLP_SEARCH_PLOGI,
2393 NLP_SEARCH_ADISC,
2394 NLP_SEARCH_REGLOGIN,
2395 NLP_SEARCH_PRLI};
2396 int i;
2397
2398 spin_lock_irq(phba->host->host_lock);
2399 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2400 if (!(order & search[i]))
2401 continue;
2402 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2403 if (memcmp(&ndlp->nlp_portname, wwpn,
2404 sizeof(struct lpfc_name)) == 0) {
2405 spin_unlock_irq(phba->host->host_lock);
2406 return ndlp;
2407 }
2408 }
2409 }
2410 spin_unlock_irq(phba->host->host_lock);
2411 return NULL;
2412 }
2413
2414 void
2415 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2416 uint32_t did)
2417 {
2418 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2419 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2420 init_timer(&ndlp->nlp_delayfunc);
2421 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2422 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2423 ndlp->nlp_DID = did;
2424 ndlp->nlp_phba = phba;
2425 ndlp->nlp_sid = NLP_NO_SID;
2426 return;
2427 }
A Kernel for the Dreambox dm7025.