projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[SCSI] lpfc 8.1.12 : Reference count node structures for node lifetime management
[linux-2.6-block.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
41415862 4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/kthread.h>
25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e 28#include <scsi/scsi_device.h>
29#include <scsi/scsi_host.h>
30#include <scsi/scsi_transport_fc.h>
31
32#include "lpfc_hw.h"
33#include "lpfc_disc.h"
34#include "lpfc_sli.h"
35#include "lpfc_scsi.h"
36#include "lpfc.h"
37#include "lpfc_logmsg.h"
38#include "lpfc_crtn.h"
39
40/* AlpaArray for assignment of scsid for scan-down and bind_method */
41static uint8_t lpfcAlpaArray[] = {
42 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
43 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
44 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
45 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
46 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
47 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
48 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
49 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
50 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
51 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
52 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
53 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
54 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
55};
56
57static void lpfc_disc_timeout_handler(struct lpfc_hba *);
58
c01f3208
JS		 59void
60lpfc_terminate_rport_io(struct fc_rport *rport)
dea3101e 61{
c01f3208
JS		 62 struct lpfc_rport_data *rdata;
63 struct lpfc_nodelist * ndlp;
64 struct lpfc_hba *phba;
dea3101e 65
c01f3208
JS		 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);
dea3101e 74 return;
75 }
76
c01f3208
JS		 77 phba = ndlp->nlp_phba;
78
1a169689 79 spin_lock_irq(phba->host->host_lock);
c01f3208
JS		 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 */
92void
93lpfc_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;
1a169689 103
c01f3208
JS		 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
82085718
JS		 112 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
113 return;
114
c01f3208
JS		 115 name = (uint8_t *)&ndlp->nlp_portname;
116 phba = ndlp->nlp_phba;
117
118 spin_lock_irq(phba->host->host_lock);
dea3101e 119
120 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 121 warn_on = 1;
dea3101e 122 /* flush the target */
123 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
124 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
125 }
c01f3208
JS		 126 if (phba->fc_flag & FC_UNLOADING)
127 warn_on = 0;
128
dea3101e 129 spin_unlock_irq(phba->host->host_lock);
130
6e8215e4
JSEC		 131 if (warn_on) {
132 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
c01f3208 133 "%d:0203 Devloss timeout on "
488d1469
JS		 134 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
135 "NPort x%x Data: x%x x%x x%x\n",
136 phba->brd_no,
137 *name, *(name+1), *(name+2), *(name+3),
138 *(name+4), *(name+5), *(name+6), *(name+7),
139 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 140 ndlp->nlp_state, ndlp->nlp_rpi);
141 } else {
142 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
c01f3208 143 "%d:0204 Devloss timeout on "
488d1469
JS		 144 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
145 "NPort x%x Data: x%x x%x x%x\n",
146 phba->brd_no,
147 *name, *(name+1), *(name+2), *(name+3),
148 *(name+4), *(name+5), *(name+6), *(name+7),
149 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 150 ndlp->nlp_state, ndlp->nlp_rpi);
151 }
152
1dcb58e5
JS		 153 if (!(phba->fc_flag & FC_UNLOADING) &&
154 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718
JS		 155 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
156 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
c01f3208 157 lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
1dcb58e5
JS		 158 else {
159 rdata->pnode = NULL;
160 ndlp->rport = NULL;
329f9bc7
JS		 161 lpfc_nlp_put(ndlp);
162 put_device(&rport->dev);
1dcb58e5 163 }
c01f3208 164
dea3101e 165 return;
166}
167
168static void
169lpfc_work_list_done(struct lpfc_hba * phba)
170{
171 struct lpfc_work_evt *evtp = NULL;
172 struct lpfc_nodelist *ndlp;
173 int free_evt;
174
175 spin_lock_irq(phba->host->host_lock);
176 while(!list_empty(&phba->work_list)) {
177 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
178 evt_listp);
179 spin_unlock_irq(phba->host->host_lock);
180 free_evt = 1;
2fe165b6 181 switch (evtp->evt) {
dea3101e 182 case LPFC_EVT_ELS_RETRY:
183 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
184 lpfc_els_retry_delay_handler(ndlp);
185 free_evt = 0;
186 break;
187 case LPFC_EVT_ONLINE:
41415862
JW		 188 if (phba->hba_state < LPFC_LINK_DOWN)
189 *(int *)(evtp->evt_arg1) = lpfc_online(phba);
190 else
191 *(int *)(evtp->evt_arg1) = 0;
dea3101e 192 complete((struct completion *)(evtp->evt_arg2));
193 break;
46fa311e 194 case LPFC_EVT_OFFLINE_PREP:
41415862 195 if (phba->hba_state >= LPFC_LINK_DOWN)
46fa311e
JS		 196 lpfc_offline_prep(phba);
197 *(int *)(evtp->evt_arg1) = 0;
198 complete((struct completion *)(evtp->evt_arg2));
199 break;
200 case LPFC_EVT_OFFLINE:
201 lpfc_offline(phba);
41415862
JW		 202 lpfc_sli_brdrestart(phba);
203 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 204 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
205 lpfc_unblock_mgmt_io(phba);
41415862
JW		 206 complete((struct completion *)(evtp->evt_arg2));
207 break;
208 case LPFC_EVT_WARM_START:
46fa311e 209 lpfc_offline(phba);
9290831f 210 lpfc_reset_barrier(phba);
41415862
JW		 211 lpfc_sli_brdreset(phba);
212 lpfc_hba_down_post(phba);
213 *(int *)(evtp->evt_arg1) =
214 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 215 lpfc_unblock_mgmt_io(phba);
41415862
JW		 216 complete((struct completion *)(evtp->evt_arg2));
217 break;
218 case LPFC_EVT_KILL:
46fa311e 219 lpfc_offline(phba);
9290831f
JS		 220 *(int *)(evtp->evt_arg1)
221 = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
46fa311e 222 lpfc_unblock_mgmt_io(phba);
dea3101e 223 complete((struct completion *)(evtp->evt_arg2));
224 break;
225 }
226 if (free_evt)
227 kfree(evtp);
228 spin_lock_irq(phba->host->host_lock);
229 }
230 spin_unlock_irq(phba->host->host_lock);
231
232}
233
234static void
235lpfc_work_done(struct lpfc_hba * phba)
236{
237 struct lpfc_sli_ring *pring;
238 int i;
239 uint32_t ha_copy;
240 uint32_t control;
241 uint32_t work_hba_events;
242
243 spin_lock_irq(phba->host->host_lock);
244 ha_copy = phba->work_ha;
245 phba->work_ha = 0;
246 work_hba_events=phba->work_hba_events;
247 spin_unlock_irq(phba->host->host_lock);
248
2fe165b6 249 if (ha_copy & HA_ERATT)
dea3101e 250 lpfc_handle_eratt(phba);
251
2fe165b6 252 if (ha_copy & HA_MBATT)
dea3101e 253 lpfc_sli_handle_mb_event(phba);
254
2fe165b6 255 if (ha_copy & HA_LATT)
dea3101e 256 lpfc_handle_latt(phba);
257
258 if (work_hba_events & WORKER_DISC_TMO)
259 lpfc_disc_timeout_handler(phba);
260
261 if (work_hba_events & WORKER_ELS_TMO)
262 lpfc_els_timeout_handler(phba);
263
264 if (work_hba_events & WORKER_MBOX_TMO)
265 lpfc_mbox_timeout_handler(phba);
266
267 if (work_hba_events & WORKER_FDMI_TMO)
268 lpfc_fdmi_tmo_handler(phba);
269
270 spin_lock_irq(phba->host->host_lock);
271 phba->work_hba_events &= ~work_hba_events;
272 spin_unlock_irq(phba->host->host_lock);
273
274 for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
275 pring = &phba->sli.ring[i];
276 if ((ha_copy & HA_RXATT)
277 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
278 if (pring->flag & LPFC_STOP_IOCB_MASK) {
279 pring->flag |= LPFC_DEFERRED_RING_EVENT;
280 } else {
281 lpfc_sli_handle_slow_ring_event(phba, pring,
282 (ha_copy &
283 HA_RXMASK));
284 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
285 }
286 /*
287 * Turn on Ring interrupts
288 */
289 spin_lock_irq(phba->host->host_lock);
290 control = readl(phba->HCregaddr);
291 control |= (HC_R0INT_ENA << i);
292 writel(control, phba->HCregaddr);
293 readl(phba->HCregaddr); /* flush */
294 spin_unlock_irq(phba->host->host_lock);
295 }
296 }
297
298 lpfc_work_list_done (phba);
299
300}
301
302static int
303check_work_wait_done(struct lpfc_hba *phba) {
304
305 spin_lock_irq(phba->host->host_lock);
306 if (phba->work_ha ||
307 phba->work_hba_events ||
308 (!list_empty(&phba->work_list)) ||
309 kthread_should_stop()) {
310 spin_unlock_irq(phba->host->host_lock);
311 return 1;
312 } else {
313 spin_unlock_irq(phba->host->host_lock);
314 return 0;
315 }
316}
317
318int
319lpfc_do_work(void *p)
320{
321 struct lpfc_hba *phba = p;
322 int rc;
7259f0d0 323 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
dea3101e 324
325 set_user_nice(current, -20);
326 phba->work_wait = &work_waitq;
327
328 while (1) {
329
330 rc = wait_event_interruptible(work_waitq,
331 check_work_wait_done(phba));
332 BUG_ON(rc);
333
334 if (kthread_should_stop())
335 break;
336
337 lpfc_work_done(phba);
338
339 }
340 phba->work_wait = NULL;
341 return 0;
342}
343
344/*
345 * This is only called to handle FC worker events. Since this a rare
346 * occurance, we allocate a struct lpfc_work_evt structure here instead of
347 * embedding it in the IOCB.
348 */
349int
350lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
351 uint32_t evt)
352{
353 struct lpfc_work_evt *evtp;
354
355 /*
356 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
357 * be queued to worker thread for processing
358 */
359 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
360 if (!evtp)
361 return 0;
362
363 evtp->evt_arg1 = arg1;
364 evtp->evt_arg2 = arg2;
365 evtp->evt = evt;
366
dea3101e 367 spin_lock_irq(phba->host->host_lock);
071fbd3d 368 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 369 if (phba->work_wait)
370 wake_up(phba->work_wait);
371 spin_unlock_irq(phba->host->host_lock);
372
373 return 1;
374}
375
376int
377lpfc_linkdown(struct lpfc_hba * phba)
378{
379 struct lpfc_sli *psli;
380 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b 381 struct list_head *listp, *node_list[7];
dea3101e 382 LPFC_MBOXQ_t *mb;
383 int rc, i;
384
385 psli = &phba->sli;
c9f8735b 386 /* sysfs or selective reset may call this routine to clean up */
5024ab17
JW		 387 if (phba->hba_state >= LPFC_LINK_DOWN) {
388 if (phba->hba_state == LPFC_LINK_DOWN)
389 return 0;
390
c9f8735b
JW		 391 spin_lock_irq(phba->host->host_lock);
392 phba->hba_state = LPFC_LINK_DOWN;
393 spin_unlock_irq(phba->host->host_lock);
394 }
dea3101e 395
d2873e4c
JS		 396 fc_host_post_event(phba->host, fc_get_event_number(),
397 FCH_EVT_LINKDOWN, 0);
398
dea3101e 399 /* Clean up any firmware default rpi's */
400 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
401 lpfc_unreg_did(phba, 0xffffffff, mb);
402 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
403 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
404 == MBX_NOT_FINISHED) {
405 mempool_free( mb, phba->mbox_mem_pool);
406 }
407 }
408
409 /* Cleanup any outstanding RSCN activity */
410 lpfc_els_flush_rscn(phba);
411
412 /* Cleanup any outstanding ELS commands */
413 lpfc_els_flush_cmd(phba);
414
415 /* Issue a LINK DOWN event to all nodes */
416 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
417 node_list[1] = &phba->fc_nlpmap_list;
418 node_list[2] = &phba->fc_nlpunmap_list;
419 node_list[3] = &phba->fc_prli_list;
420 node_list[4] = &phba->fc_reglogin_list;
421 node_list[5] = &phba->fc_adisc_list;
422 node_list[6] = &phba->fc_plogi_list;
423 for (i = 0; i < 7; i++) {
424 listp = node_list[i];
425 if (list_empty(listp))
426 continue;
427
428 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
c9f8735b
JW		 429
430 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
431 NLP_EVT_DEVICE_RECOVERY);
432
dea3101e 433 }
434 }
435
436 /* free any ndlp's on unused list */
437 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
de0c5b32
JS		 438 nlp_listp)
439 lpfc_drop_node(phba, ndlp);
dea3101e 440
441 /* Setup myDID for link up if we are in pt2pt mode */
442 if (phba->fc_flag & FC_PT2PT) {
443 phba->fc_myDID = 0;
444 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
445 lpfc_config_link(phba, mb);
446 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
447 if (lpfc_sli_issue_mbox
448 (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
449 == MBX_NOT_FINISHED) {
450 mempool_free( mb, phba->mbox_mem_pool);
451 }
452 }
453 spin_lock_irq(phba->host->host_lock);
454 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
455 spin_unlock_irq(phba->host->host_lock);
456 }
457 spin_lock_irq(phba->host->host_lock);
458 phba->fc_flag &= ~FC_LBIT;
459 spin_unlock_irq(phba->host->host_lock);
460
461 /* Turn off discovery timer if its running */
462 lpfc_can_disctmo(phba);
463
464 /* Must process IOCBs on all rings to handle ABORTed I/Os */
2fe165b6 465 return 0;
dea3101e 466}
467
468static int
469lpfc_linkup(struct lpfc_hba * phba)
470{
471 struct lpfc_nodelist *ndlp, *next_ndlp;
c9f8735b
JW		 472 struct list_head *listp, *node_list[7];
473 int i;
dea3101e 474
d2873e4c
JS		 475 fc_host_post_event(phba->host, fc_get_event_number(),
476 FCH_EVT_LINKUP, 0);
477
dea3101e 478 spin_lock_irq(phba->host->host_lock);
479 phba->hba_state = LPFC_LINK_UP;
480 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
481 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
482 phba->fc_flag |= FC_NDISC_ACTIVE;
483 phba->fc_ns_retry = 0;
484 spin_unlock_irq(phba->host->host_lock);
485
486
c9f8735b
JW		 487 node_list[0] = &phba->fc_plogi_list;
488 node_list[1] = &phba->fc_adisc_list;
489 node_list[2] = &phba->fc_reglogin_list;
490 node_list[3] = &phba->fc_prli_list;
491 node_list[4] = &phba->fc_nlpunmap_list;
492 node_list[5] = &phba->fc_nlpmap_list;
493 node_list[6] = &phba->fc_npr_list;
494 for (i = 0; i < 7; i++) {
495 listp = node_list[i];
496 if (list_empty(listp))
497 continue;
498
499 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
500 if (phba->fc_flag & FC_LBIT) {
501 if (ndlp->nlp_type & NLP_FABRIC) {
502 /* On Linkup its safe to clean up the
503 * ndlp from Fabric connections.
504 */
de0c5b32
JS		 505 lpfc_nlp_set_state(phba, ndlp,
506 NLP_STE_UNUSED_NODE);
c9f8735b
JW		 507 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
508 /* Fail outstanding IO now since device
509 * is marked for PLOGI.
510 */
511 lpfc_unreg_rpi(phba, ndlp);
512 }
513 }
dea3101e 514 }
515 }
516
517 /* free any ndlp's on unused list */
518 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
de0c5b32
JS		 519 nlp_listp)
520 lpfc_drop_node(phba, ndlp);
dea3101e 521
522 return 0;
523}
524
525/*
526 * This routine handles processing a CLEAR_LA mailbox
527 * command upon completion. It is setup in the LPFC_MBOXQ
528 * as the completion routine when the command is
529 * handed off to the SLI layer.
530 */
531void
532lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
533{
534 struct lpfc_sli *psli;
535 MAILBOX_t *mb;
536 uint32_t control;
537
538 psli = &phba->sli;
539 mb = &pmb->mb;
540 /* Since we don't do discovery right now, turn these off here */
a4bc3379 541 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 542 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
543 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
544
545 /* Check for error */
546 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
547 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
548 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
549 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
550 "state x%x\n",
551 phba->brd_no, mb->mbxStatus, phba->hba_state);
552
553 phba->hba_state = LPFC_HBA_ERROR;
554 goto out;
555 }
556
557 if (phba->fc_flag & FC_ABORT_DISCOVERY)
558 goto out;
559
560 phba->num_disc_nodes = 0;
561 /* go thru NPR list and issue ELS PLOGIs */
562 if (phba->fc_npr_cnt) {
563 lpfc_els_disc_plogi(phba);
564 }
565
2fe165b6 566 if (!phba->num_disc_nodes) {
dea3101e 567 spin_lock_irq(phba->host->host_lock);
568 phba->fc_flag &= ~FC_NDISC_ACTIVE;
569 spin_unlock_irq(phba->host->host_lock);
570 }
571
572 phba->hba_state = LPFC_HBA_READY;
573
574out:
575 /* Device Discovery completes */
576 lpfc_printf_log(phba,
577 KERN_INFO,
578 LOG_DISCOVERY,
579 "%d:0225 Device Discovery completes\n",
580 phba->brd_no);
581
582 mempool_free( pmb, phba->mbox_mem_pool);
583
584 spin_lock_irq(phba->host->host_lock);
585 phba->fc_flag &= ~FC_ABORT_DISCOVERY;
586 if (phba->fc_flag & FC_ESTABLISH_LINK) {
587 phba->fc_flag &= ~FC_ESTABLISH_LINK;
588 }
589 spin_unlock_irq(phba->host->host_lock);
590
591 del_timer_sync(&phba->fc_estabtmo);
592
593 lpfc_can_disctmo(phba);
594
595 /* turn on Link Attention interrupts */
596 spin_lock_irq(phba->host->host_lock);
597 psli->sli_flag |= LPFC_PROCESS_LA;
598 control = readl(phba->HCregaddr);
599 control |= HC_LAINT_ENA;
600 writel(control, phba->HCregaddr);
601 readl(phba->HCregaddr); /* flush */
602 spin_unlock_irq(phba->host->host_lock);
603
604 return;
605}
606
607static void
25594c6b 608lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 609{
25594c6b
JW		 610 struct lpfc_sli *psli = &phba->sli;
611 int rc;
dea3101e 612
25594c6b 613 if (pmb->mb.mbxStatus)
dea3101e 614 goto out;
dea3101e 615
25594c6b
JW		 616 mempool_free(pmb, phba->mbox_mem_pool);
617
618 if (phba->fc_topology == TOPOLOGY_LOOP &&
619 phba->fc_flag & FC_PUBLIC_LOOP &&
620 !(phba->fc_flag & FC_LBIT)) {
621 /* Need to wait for FAN - use discovery timer
622 * for timeout. hba_state is identically
623 * LPFC_LOCAL_CFG_LINK while waiting for FAN
624 */
625 lpfc_set_disctmo(phba);
626 return;
dea3101e 627 }
628
25594c6b
JW		 629 /* Start discovery by sending a FLOGI. hba_state is identically
630 * LPFC_FLOGI while waiting for FLOGI cmpl
631 */
632 phba->hba_state = LPFC_FLOGI;
633 lpfc_set_disctmo(phba);
634 lpfc_initial_flogi(phba);
635 return;
dea3101e 636
637out:
25594c6b
JW		 638 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
639 "%d:0306 CONFIG_LINK mbxStatus error x%x "
640 "HBA state x%x\n",
641 phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
642
643 lpfc_linkdown(phba);
644
645 phba->hba_state = LPFC_HBA_ERROR;
646
647 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dea3101e 648 "%d:0200 CONFIG_LINK bad hba state x%x\n",
649 phba->brd_no, phba->hba_state);
650
25594c6b
JW		 651 lpfc_clear_la(phba, pmb);
652 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
653 rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
654 if (rc == MBX_NOT_FINISHED) {
655 mempool_free(pmb, phba->mbox_mem_pool);
656 lpfc_disc_flush_list(phba);
a4bc3379 657 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
25594c6b
JW		 658 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
659 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
660 phba->hba_state = LPFC_HBA_READY;
dea3101e 661 }
662 return;
663}
664
665static void
666lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
667{
668 struct lpfc_sli *psli = &phba->sli;
669 MAILBOX_t *mb = &pmb->mb;
670 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
671
672
673 /* Check for error */
674 if (mb->mbxStatus) {
675 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
676 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
677 "%d:0319 READ_SPARAM mbxStatus error x%x "
678 "hba state x%x>\n",
679 phba->brd_no, mb->mbxStatus, phba->hba_state);
680
681 lpfc_linkdown(phba);
682 phba->hba_state = LPFC_HBA_ERROR;
683 goto out;
684 }
685
686 memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
687 sizeof (struct serv_parm));
a12e07bc
JS		 688 if (phba->cfg_soft_wwnn)
689 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
c3f28afa
JS		 690 if (phba->cfg_soft_wwpn)
691 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
dea3101e 692 memcpy((uint8_t *) & phba->fc_nodename,
693 (uint8_t *) & phba->fc_sparam.nodeName,
694 sizeof (struct lpfc_name));
695 memcpy((uint8_t *) & phba->fc_portname,
696 (uint8_t *) & phba->fc_sparam.portName,
697 sizeof (struct lpfc_name));
698 lpfc_mbuf_free(phba, mp->virt, mp->phys);
699 kfree(mp);
700 mempool_free( pmb, phba->mbox_mem_pool);
701 return;
702
703out:
704 pmb->context1 = NULL;
705 lpfc_mbuf_free(phba, mp->virt, mp->phys);
706 kfree(mp);
707 if (phba->hba_state != LPFC_CLEAR_LA) {
708 lpfc_clear_la(phba, pmb);
709 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
710 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
711 == MBX_NOT_FINISHED) {
712 mempool_free( pmb, phba->mbox_mem_pool);
713 lpfc_disc_flush_list(phba);
a4bc3379 714 psli->ring[(psli->extra_ring)].flag &=
dea3101e 715 ~LPFC_STOP_IOCB_EVENT;
716 psli->ring[(psli->fcp_ring)].flag &=
717 ~LPFC_STOP_IOCB_EVENT;
718 psli->ring[(psli->next_ring)].flag &=
719 ~LPFC_STOP_IOCB_EVENT;
720 phba->hba_state = LPFC_HBA_READY;
721 }
722 } else {
723 mempool_free( pmb, phba->mbox_mem_pool);
724 }
725 return;
726}
727
728static void
729lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
730{
731 int i;
732 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
14691150
JS		 733 struct lpfc_dmabuf *mp;
734 int rc;
735
dea3101e 736 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
737 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
738
739 spin_lock_irq(phba->host->host_lock);
2fe165b6 740 switch (la->UlnkSpeed) {
dea3101e 741 case LA_1GHZ_LINK:
742 phba->fc_linkspeed = LA_1GHZ_LINK;
743 break;
744 case LA_2GHZ_LINK:
745 phba->fc_linkspeed = LA_2GHZ_LINK;
746 break;
747 case LA_4GHZ_LINK:
748 phba->fc_linkspeed = LA_4GHZ_LINK;
749 break;
750 default:
751 phba->fc_linkspeed = LA_UNKNW_LINK;
752 break;
753 }
754
755 phba->fc_topology = la->topology;
756
757 if (phba->fc_topology == TOPOLOGY_LOOP) {
758 /* Get Loop Map information */
759
760 if (la->il)
761 phba->fc_flag |= FC_LBIT;
762
763 phba->fc_myDID = la->granted_AL_PA;
764 i = la->un.lilpBde64.tus.f.bdeSize;
765
766 if (i == 0) {
767 phba->alpa_map[0] = 0;
768 } else {
769 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
770 int numalpa, j, k;
771 union {
772 uint8_t pamap[16];
773 struct {
774 uint32_t wd1;
775 uint32_t wd2;
776 uint32_t wd3;
777 uint32_t wd4;
778 } pa;
779 } un;
780 numalpa = phba->alpa_map[0];
781 j = 0;
782 while (j < numalpa) {
783 memset(un.pamap, 0, 16);
784 for (k = 1; j < numalpa; k++) {
785 un.pamap[k - 1] =
786 phba->alpa_map[j + 1];
787 j++;
788 if (k == 16)
789 break;
790 }
791 /* Link Up Event ALPA map */
792 lpfc_printf_log(phba,
793 KERN_WARNING,
794 LOG_LINK_EVENT,
795 "%d:1304 Link Up Event "
796 "ALPA map Data: x%x "
797 "x%x x%x x%x\n",
798 phba->brd_no,
799 un.pa.wd1, un.pa.wd2,
800 un.pa.wd3, un.pa.wd4);
801 }
802 }
803 }
804 } else {
805 phba->fc_myDID = phba->fc_pref_DID;
806 phba->fc_flag |= FC_LBIT;
807 }
808 spin_unlock_irq(phba->host->host_lock);
809
810 lpfc_linkup(phba);
811 if (sparam_mbox) {
812 lpfc_read_sparam(phba, sparam_mbox);
813 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
14691150 814 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
dea3101e 815 (MBX_NOWAIT | MBX_STOP_IOCB));
14691150
JS		 816 if (rc == MBX_NOT_FINISHED) {
817 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
818 lpfc_mbuf_free(phba, mp->virt, mp->phys);
819 kfree(mp);
820 mempool_free(sparam_mbox, phba->mbox_mem_pool);
821 if (cfglink_mbox)
822 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
823 return;
824 }
dea3101e 825 }
826
827 if (cfglink_mbox) {
828 phba->hba_state = LPFC_LOCAL_CFG_LINK;
829 lpfc_config_link(phba, cfglink_mbox);
25594c6b 830 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
14691150 831 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
dea3101e 832 (MBX_NOWAIT | MBX_STOP_IOCB));
14691150
JS		 833 if (rc == MBX_NOT_FINISHED)
834 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
dea3101e 835 }
836}
837
838static void
839lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
840 uint32_t control;
841 struct lpfc_sli *psli = &phba->sli;
842
843 lpfc_linkdown(phba);
844
845 /* turn on Link Attention interrupts - no CLEAR_LA needed */
846 spin_lock_irq(phba->host->host_lock);
847 psli->sli_flag |= LPFC_PROCESS_LA;
848 control = readl(phba->HCregaddr);
849 control |= HC_LAINT_ENA;
850 writel(control, phba->HCregaddr);
851 readl(phba->HCregaddr); /* flush */
852 spin_unlock_irq(phba->host->host_lock);
853}
854
855/*
856 * This routine handles processing a READ_LA mailbox
857 * command upon completion. It is setup in the LPFC_MBOXQ
858 * as the completion routine when the command is
859 * handed off to the SLI layer.
860 */
861void
862lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
863{
864 READ_LA_VAR *la;
865 MAILBOX_t *mb = &pmb->mb;
866 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
867
868 /* Check for error */
869 if (mb->mbxStatus) {
870 lpfc_printf_log(phba,
871 KERN_INFO,
872 LOG_LINK_EVENT,
873 "%d:1307 READ_LA mbox error x%x state x%x\n",
874 phba->brd_no,
875 mb->mbxStatus, phba->hba_state);
876 lpfc_mbx_issue_link_down(phba);
877 phba->hba_state = LPFC_HBA_ERROR;
878 goto lpfc_mbx_cmpl_read_la_free_mbuf;
879 }
880
881 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
882
883 memcpy(&phba->alpa_map[0], mp->virt, 128);
884
c9f8735b
JW		 885 spin_lock_irq(phba->host->host_lock);
886 if (la->pb)
887 phba->fc_flag |= FC_BYPASSED_MODE;
888 else
889 phba->fc_flag &= ~FC_BYPASSED_MODE;
890 spin_unlock_irq(phba->host->host_lock);
891
dea3101e 892 if (((phba->fc_eventTag + 1) < la->eventTag) ||
893 (phba->fc_eventTag == la->eventTag)) {
894 phba->fc_stat.LinkMultiEvent++;
895 if (la->attType == AT_LINK_UP) {
896 if (phba->fc_eventTag != 0)
897 lpfc_linkdown(phba);
898 }
899 }
900
901 phba->fc_eventTag = la->eventTag;
902
903 if (la->attType == AT_LINK_UP) {
904 phba->fc_stat.LinkUp++;
5b8bd0c9
JS		 905 if (phba->fc_flag & FC_LOOPBACK_MODE) {
906 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
907 "%d:1306 Link Up Event in loop back mode "
908 "x%x received Data: x%x x%x x%x x%x\n",
909 phba->brd_no, la->eventTag, phba->fc_eventTag,
910 la->granted_AL_PA, la->UlnkSpeed,
911 phba->alpa_map[0]);
912 } else {
913 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
dea3101e 914 "%d:1303 Link Up Event x%x received "
915 "Data: x%x x%x x%x x%x\n",
916 phba->brd_no, la->eventTag, phba->fc_eventTag,
917 la->granted_AL_PA, la->UlnkSpeed,
918 phba->alpa_map[0]);
5b8bd0c9 919 }
dea3101e 920 lpfc_mbx_process_link_up(phba, la);
921 } else {
922 phba->fc_stat.LinkDown++;
923 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
924 "%d:1305 Link Down Event x%x received "
925 "Data: x%x x%x x%x\n",
926 phba->brd_no, la->eventTag, phba->fc_eventTag,
927 phba->hba_state, phba->fc_flag);
928 lpfc_mbx_issue_link_down(phba);
929 }
930
931lpfc_mbx_cmpl_read_la_free_mbuf:
932 lpfc_mbuf_free(phba, mp->virt, mp->phys);
933 kfree(mp);
934 mempool_free(pmb, phba->mbox_mem_pool);
935 return;
936}
937
938/*
939 * This routine handles processing a REG_LOGIN mailbox
940 * command upon completion. It is setup in the LPFC_MBOXQ
941 * as the completion routine when the command is
942 * handed off to the SLI layer.
943 */
944void
945lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
946{
947 struct lpfc_sli *psli;
948 MAILBOX_t *mb;
949 struct lpfc_dmabuf *mp;
950 struct lpfc_nodelist *ndlp;
951
952 psli = &phba->sli;
953 mb = &pmb->mb;
954
955 ndlp = (struct lpfc_nodelist *) pmb->context2;
956 mp = (struct lpfc_dmabuf *) (pmb->context1);
957
958 pmb->context1 = NULL;
959
960 /* Good status, call state machine */
961 lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
962 lpfc_mbuf_free(phba, mp->virt, mp->phys);
963 kfree(mp);
964 mempool_free( pmb, phba->mbox_mem_pool);
329f9bc7 965 lpfc_nlp_put(ndlp);
dea3101e 966
967 return;
968}
969
970/*
971 * This routine handles processing a Fabric REG_LOGIN mailbox
972 * command upon completion. It is setup in the LPFC_MBOXQ
973 * as the completion routine when the command is
974 * handed off to the SLI layer.
975 */
976void
977lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
978{
979 struct lpfc_sli *psli;
980 MAILBOX_t *mb;
981 struct lpfc_dmabuf *mp;
982 struct lpfc_nodelist *ndlp;
983 struct lpfc_nodelist *ndlp_fdmi;
984
985
986 psli = &phba->sli;
987 mb = &pmb->mb;
988
989 ndlp = (struct lpfc_nodelist *) pmb->context2;
990 mp = (struct lpfc_dmabuf *) (pmb->context1);
991
329f9bc7
JS		 992 pmb->context1 = NULL;
993 pmb->context2 = NULL;
994
dea3101e 995 if (mb->mbxStatus) {
996 lpfc_mbuf_free(phba, mp->virt, mp->phys);
997 kfree(mp);
329f9bc7
JS		 998 mempool_free(pmb, phba->mbox_mem_pool);
999 lpfc_nlp_put(ndlp);
dea3101e 1000
1001 /* FLOGI failed, so just use loop map to make discovery list */
1002 lpfc_disc_list_loopmap(phba);
1003
1004 /* Start discovery */
1005 lpfc_disc_start(phba);
1006 return;
1007 }
1008
dea3101e 1009 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1010 ndlp->nlp_type |= NLP_FABRIC;
de0c5b32 1011 lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1012
329f9bc7
JS		 1013 lpfc_nlp_put(ndlp); /* Drop the reference from the mbox */
1014
dea3101e 1015 if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
1016 /* This NPort has been assigned an NPort_ID by the fabric as a
1017 * result of the completed fabric login. Issue a State Change
1018 * Registration (SCR) ELS request to the fabric controller
1019 * (SCR_DID) so that this NPort gets RSCN events from the
1020 * fabric.
1021 */
1022 lpfc_issue_els_scr(phba, SCR_DID, 0);
1023
c9f8735b
JW		 1024 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
1025 if (!ndlp) {
1026 /* Allocate a new node instance. If the pool is empty,
1027 * start the discovery process and skip the Nameserver
1028 * login process. This is attempted again later on.
1029 * Otherwise, issue a Port Login (PLOGI) to NameServer.
1030 */
1031 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1032 if (!ndlp) {
1033 lpfc_disc_start(phba);
1034 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1035 kfree(mp);
329f9bc7 1036 mempool_free(pmb, phba->mbox_mem_pool);
c9f8735b
JW		 1037 return;
1038 } else {
1039 lpfc_nlp_init(phba, ndlp, NameServer_DID);
1040 ndlp->nlp_type |= NLP_FABRIC;
1041 }
1042 }
de0c5b32 1043 lpfc_nlp_set_state(phba, ndlp, NLP_STE_PLOGI_ISSUE);
488d1469 1044 lpfc_issue_els_plogi(phba, NameServer_DID, 0);
c9f8735b
JW		 1045 if (phba->cfg_fdmi_on) {
1046 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
1047 GFP_KERNEL);
1048 if (ndlp_fdmi) {
1049 lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
1050 ndlp_fdmi->nlp_type |= NLP_FABRIC;
1051 ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
488d1469 1052 lpfc_issue_els_plogi(phba, FDMI_DID, 0);
dea3101e 1053 }
1054 }
1055 }
1056
1057 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1058 kfree(mp);
329f9bc7 1059 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1060 return;
1061}
1062
1063/*
1064 * This routine handles processing a NameServer REG_LOGIN mailbox
1065 * command upon completion. It is setup in the LPFC_MBOXQ
1066 * as the completion routine when the command is
1067 * handed off to the SLI layer.
1068 */
1069void
1070lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1071{
1072 struct lpfc_sli *psli;
1073 MAILBOX_t *mb;
1074 struct lpfc_dmabuf *mp;
1075 struct lpfc_nodelist *ndlp;
1076
1077 psli = &phba->sli;
1078 mb = &pmb->mb;
1079
1080 ndlp = (struct lpfc_nodelist *) pmb->context2;
1081 mp = (struct lpfc_dmabuf *) (pmb->context1);
1082
1083 if (mb->mbxStatus) {
329f9bc7 1084 lpfc_nlp_put(ndlp);
dea3101e 1085 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1086 kfree(mp);
de0c5b32
JS		 1087 mempool_free(pmb, phba->mbox_mem_pool);
1088 lpfc_drop_node(phba, ndlp);
dea3101e 1089
1090 /* RegLogin failed, so just use loop map to make discovery
1091 list */
1092 lpfc_disc_list_loopmap(phba);
1093
1094 /* Start discovery */
1095 lpfc_disc_start(phba);
1096 return;
1097 }
1098
1099 pmb->context1 = NULL;
1100
dea3101e 1101 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1102 ndlp->nlp_type |= NLP_FABRIC;
de0c5b32 1103 lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1104
1105 if (phba->hba_state < LPFC_HBA_READY) {
1106 /* Link up discovery requires Fabrib registration. */
1107 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
1108 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
1109 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
2fb9bd8b 1110 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
dea3101e 1111 }
1112
1113 phba->fc_ns_retry = 0;
1114 /* Good status, issue CT Request to NameServer */
1115 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1116 /* Cannot issue NameServer Query, so finish up discovery */
1117 lpfc_disc_start(phba);
1118 }
1119
329f9bc7 1120 lpfc_nlp_put(ndlp);
dea3101e 1121 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1122 kfree(mp);
1123 mempool_free( pmb, phba->mbox_mem_pool);
1124
1125 return;
1126}
1127
1128static void
329f9bc7 1129lpfc_register_remote_port(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1130{
1131 struct fc_rport *rport;
1132 struct lpfc_rport_data *rdata;
1133 struct fc_rport_identifiers rport_ids;
dea3101e 1134
1135 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1136 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1137 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1138 rport_ids.port_id = ndlp->nlp_DID;
1139 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1140
329f9bc7
JS		 1141 /*
1142 * We leave our node pointer in rport->dd_data when we unregister a
1143 * FCP target port. But fc_remote_port_add zeros the space to which
1144 * rport->dd_data points. So, if we're reusing a previously
1145 * registered port, drop the reference that we took the last time we
1146 * registered the port.
1147 */
1148 if (ndlp->rport && ndlp->rport->dd_data &&
1149 *(struct lpfc_rport_data **) ndlp->rport->dd_data) {
1150 lpfc_nlp_put(ndlp);
1151 }
dea3101e 1152 ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
329f9bc7 1153 if (!rport || !get_device(&rport->dev)) {
dea3101e 1154 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1155 "Warning: fc_remote_port_add failed\n");
1156 return;
1157 }
1158
1159 /* initialize static port data */
1160 rport->maxframe_size = ndlp->nlp_maxframe;
1161 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1162 rdata = rport->dd_data;
329f9bc7 1163 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 1164
1165 if (ndlp->nlp_type & NLP_FCP_TARGET)
1166 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1167 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1168 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1169
1170
1171 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1172 fc_remote_port_rolechg(rport, rport_ids.roles);
1173
071fbd3d 1174 if ((rport->scsi_target_id != -1) &&
e17da18e 1175 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1176 ndlp->nlp_sid = rport->scsi_target_id;
1177 }
19a7b4ae
JSEC		 1178
1179 return;
1180}
1181
1182static void
329f9bc7 1183lpfc_unregister_remote_port(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 1184{
1185 struct fc_rport *rport = ndlp->rport;
1186 struct lpfc_rport_data *rdata = rport->dd_data;
1187
c01f3208
JS		 1188 if (rport->scsi_target_id == -1) {
1189 ndlp->rport = NULL;
1190 rdata->pnode = NULL;
329f9bc7
JS		 1191 lpfc_nlp_put(ndlp);
1192 put_device(&rport->dev);
c01f3208
JS		 1193 }
1194
19a7b4ae 1195 fc_remote_port_delete(rport);
dea3101e 1196
1197 return;
1198}
1199
de0c5b32
JS		 1200static void
1201lpfc_nlp_counters(struct lpfc_hba *phba, int state, int count)
dea3101e 1202{
de0c5b32
JS		 1203 switch (state) {
1204 case NLP_STE_UNUSED_NODE:
1205 phba->fc_unused_cnt += count;
1206 break;
1207 case NLP_STE_PLOGI_ISSUE:
1208 phba->fc_plogi_cnt += count;
1209 break;
1210 case NLP_STE_ADISC_ISSUE:
1211 phba->fc_adisc_cnt += count;
dea3101e 1212 break;
de0c5b32
JS		 1213 case NLP_STE_REG_LOGIN_ISSUE:
1214 phba->fc_reglogin_cnt += count;
1215 break;
1216 case NLP_STE_PRLI_ISSUE:
1217 phba->fc_prli_cnt += count;
1218 break;
1219 case NLP_STE_UNMAPPED_NODE:
1220 phba->fc_unmap_cnt += count;
1221 break;
1222 case NLP_STE_MAPPED_NODE:
1223 phba->fc_map_cnt += count;
1224 break;
1225 case NLP_STE_NPR_NODE:
1226 phba->fc_npr_cnt += count;
1227 break;
1228 }
1229}
1230
1231void
1232lpfc_delink_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1233{
1234 switch (ndlp->nlp_flag & NLP_LIST_MASK) {
dea3101e 1235 case NLP_UNUSED_LIST:
de0c5b32 1236 list_del_init(&ndlp->nlp_listp);
dea3101e 1237 break;
1238 case NLP_PLOGI_LIST:
de0c5b32 1239 list_del_init(&ndlp->nlp_listp);
dea3101e 1240 break;
1241 case NLP_ADISC_LIST:
de0c5b32 1242 list_del_init(&ndlp->nlp_listp);
dea3101e 1243 break;
1244 case NLP_REGLOGIN_LIST:
de0c5b32 1245 list_del_init(&ndlp->nlp_listp);
dea3101e 1246 break;
1247 case NLP_PRLI_LIST:
de0c5b32 1248 list_del_init(&ndlp->nlp_listp);
dea3101e 1249 break;
1250 case NLP_UNMAPPED_LIST:
de0c5b32 1251 list_del_init(&ndlp->nlp_listp);
dea3101e 1252 break;
1253 case NLP_MAPPED_LIST:
de0c5b32 1254 list_del_init(&ndlp->nlp_listp);
dea3101e 1255 break;
1256 case NLP_NPR_LIST:
de0c5b32 1257 list_del_init(&ndlp->nlp_listp);
dea3101e 1258 break;
1259 }
1260
de0c5b32
JS		 1261 ndlp->nlp_flag &= ~NLP_LIST_MASK;
1262}
1263
1264static int
1265lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1266{
1267 struct lpfc_sli *psli;
1268
1269 psli = &phba->sli;
1270 /* Sanity check to ensure we are not moving to / from the same list */
1271 if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
1272 return 0;
1273
1274 spin_lock_irq(phba->host->host_lock);
1275 lpfc_delink_node(phba, nlp);
dea3101e 1276
1277 /* Add NPort <did> to <num> list */
1278 lpfc_printf_log(phba,
1279 KERN_INFO,
1280 LOG_NODE,
1281 "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1282 phba->brd_no,
1283 nlp->nlp_DID, list, nlp->nlp_flag);
1284
2fe165b6 1285 switch (list) {
dea3101e 1286 case NLP_UNUSED_LIST:
dea3101e 1287 nlp->nlp_flag |= list;
dea3101e 1288 /* Put it at the end of the unused list */
1289 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
dea3101e 1290 break;
1291 case NLP_PLOGI_LIST:
dea3101e 1292 nlp->nlp_flag |= list;
dea3101e 1293 /* Put it at the end of the plogi list */
1294 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
dea3101e 1295 break;
1296 case NLP_ADISC_LIST:
dea3101e 1297 nlp->nlp_flag |= list;
dea3101e 1298 /* Put it at the end of the adisc list */
1299 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
dea3101e 1300 break;
1301 case NLP_REGLOGIN_LIST:
dea3101e 1302 nlp->nlp_flag |= list;
dea3101e 1303 /* Put it at the end of the reglogin list */
1304 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
dea3101e 1305 break;
1306 case NLP_PRLI_LIST:
dea3101e 1307 nlp->nlp_flag |= list;
dea3101e 1308 /* Put it at the end of the prli list */
1309 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
dea3101e 1310 break;
1311 case NLP_UNMAPPED_LIST:
dea3101e 1312 nlp->nlp_flag |= list;
dea3101e 1313 /* Put it at the end of the unmap list */
1314 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
dea3101e 1315 break;
1316 case NLP_MAPPED_LIST:
dea3101e 1317 nlp->nlp_flag |= list;
dea3101e 1318 /* Put it at the end of the map list */
1319 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
dea3101e 1320 break;
1321 case NLP_NPR_LIST:
dea3101e 1322 nlp->nlp_flag |= list;
dea3101e 1323 /* Put it at the end of the npr list */
1324 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
dea3101e 1325 break;
1326 }
1327
66a9ed66 1328 spin_unlock_irq(phba->host->host_lock);
de0c5b32
JS		 1329 return 0;
1330}
66a9ed66 1331
de0c5b32
JS		 1332static void
1333lpfc_nlp_state_cleanup(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1334 int old_state, int new_state)
1335{
1336 if (new_state == NLP_STE_UNMAPPED_NODE) {
1337 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1338 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1339 ndlp->nlp_type |= NLP_FC_NODE;
1340 }
1341 if (new_state == NLP_STE_MAPPED_NODE)
1342 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1343 if (new_state == NLP_STE_NPR_NODE)
1344 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1345
1346 /* Transport interface */
1347 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1348 old_state == NLP_STE_UNMAPPED_NODE)) {
1349 phba->nport_event_cnt++;
1350 lpfc_unregister_remote_port(phba, ndlp);
1351 }
dea3101e 1352
de0c5b32
JS		 1353 if (new_state == NLP_STE_MAPPED_NODE ||
1354 new_state == NLP_STE_UNMAPPED_NODE) {
1355 phba->nport_event_cnt++;
dea3101e 1356 /*
1357 * Tell the fc transport about the port, if we haven't
1358 * already. If we have, and it's a scsi entity, be
1359 * sure to unblock any attached scsi devices
1360 */
de0c5b32
JS		 1361 lpfc_register_remote_port(phba, ndlp);
1362 }
dea3101e 1363
1364 /*
1365 * if we added to Mapped list, but the remote port
1366 * registration failed or assigned a target id outside
1367 * our presentable range - move the node to the
1368 * Unmapped List
1369 */
de0c5b32
JS		 1370 if (new_state == NLP_STE_MAPPED_NODE &&
1371 (!ndlp->rport ||
1372 ndlp->rport->scsi_target_id == -1 ||
1373 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
1374 spin_lock_irq(phba->host->host_lock);
1375 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1376 spin_unlock_irq(phba->host->host_lock);
1377 lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1378 }
de0c5b32
JS		 1379}
1380
1381void
1382lpfc_nlp_set_state(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int state)
1383{
1384 int old_state = ndlp->nlp_state;
1385 static int list_id[] = {
1386 [NLP_STE_UNUSED_NODE] = NLP_UNUSED_LIST,
1387 [NLP_STE_PLOGI_ISSUE] = NLP_PLOGI_LIST,
1388 [NLP_STE_ADISC_ISSUE] = NLP_ADISC_LIST,
1389 [NLP_STE_REG_LOGIN_ISSUE] = NLP_REGLOGIN_LIST,
1390 [NLP_STE_PRLI_ISSUE] = NLP_PRLI_LIST,
1391 [NLP_STE_UNMAPPED_NODE] = NLP_UNMAPPED_LIST,
1392 [NLP_STE_MAPPED_NODE] = NLP_MAPPED_LIST,
1393 [NLP_STE_NPR_NODE] = NLP_NPR_LIST,
1394 };
1395
1396 if (old_state == NLP_STE_NPR_NODE &&
1397 (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1398 state != NLP_STE_NPR_NODE)
1399 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1400 if (old_state == NLP_STE_UNMAPPED_NODE) {
1401 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1402 ndlp->nlp_type &= ~NLP_FC_NODE;
1403 }
1404
1405 if (old_state && !list_empty(&ndlp->nlp_listp))
1406 lpfc_nlp_counters(phba, old_state, -1);
1407
1408 ndlp->nlp_state = state;
1409 lpfc_nlp_list(phba, ndlp, list_id[state]);
1410 lpfc_nlp_counters(phba, state, 1);
1411
1412 lpfc_nlp_state_cleanup(phba, ndlp, old_state, state);
1413}
1414
1415void
1416lpfc_dequeue_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1417{
1418 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1419 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1420 spin_lock_irq(phba->host->host_lock);
1421 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1422 lpfc_nlp_counters(phba, ndlp->nlp_state, -1);
1423 lpfc_delink_node(phba, ndlp);
1424 spin_unlock_irq(phba->host->host_lock);
1425 lpfc_nlp_state_cleanup(phba, ndlp, ndlp->nlp_state, 0);
1426}
1427
1428void
1429lpfc_drop_node(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1430{
1431 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1432 lpfc_cancel_retry_delay_tmo(phba, ndlp);
1433 spin_lock_irq(phba->host->host_lock);
1434 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1435 lpfc_nlp_counters(phba, ndlp->nlp_state, -1);
1436 lpfc_delink_node(phba, ndlp);
1437 spin_unlock_irq(phba->host->host_lock);
329f9bc7 1438 lpfc_nlp_put(ndlp);
dea3101e 1439}
1440
1441/*
1442 * Start / ReStart rescue timer for Discovery / RSCN handling
1443 */
1444void
1445lpfc_set_disctmo(struct lpfc_hba * phba)
1446{
1447 uint32_t tmo;
1448
c9f8735b
JW		 1449 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
1450 /* For FAN, timeout should be greater then edtov */
1451 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1452 } else {
1453 /* Normal discovery timeout should be > then ELS/CT timeout
1454 * FC spec states we need 3 * ratov for CT requests
1455 */
1456 tmo = ((phba->fc_ratov * 3) + 3);
1457 }
dea3101e 1458
1459 mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1460 spin_lock_irq(phba->host->host_lock);
1461 phba->fc_flag |= FC_DISC_TMO;
1462 spin_unlock_irq(phba->host->host_lock);
1463
1464 /* Start Discovery Timer state <hba_state> */
1465 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1466 "%d:0247 Start Discovery Timer state x%x "
1467 "Data: x%x x%lx x%x x%x\n",
1468 phba->brd_no,
1469 phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1470 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1471
1472 return;
1473}
1474
1475/*
1476 * Cancel rescue timer for Discovery / RSCN handling
1477 */
1478int
1479lpfc_can_disctmo(struct lpfc_hba * phba)
1480{
1481 /* Turn off discovery timer if its running */
1482 if (phba->fc_flag & FC_DISC_TMO) {
1483 spin_lock_irq(phba->host->host_lock);
1484 phba->fc_flag &= ~FC_DISC_TMO;
1485 spin_unlock_irq(phba->host->host_lock);
1486 del_timer_sync(&phba->fc_disctmo);
1487 phba->work_hba_events &= ~WORKER_DISC_TMO;
1488 }
1489
1490 /* Cancel Discovery Timer state <hba_state> */
1491 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1492 "%d:0248 Cancel Discovery Timer state x%x "
1493 "Data: x%x x%x x%x\n",
1494 phba->brd_no, phba->hba_state, phba->fc_flag,
1495 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1496
2fe165b6 1497 return 0;
dea3101e 1498}
1499
1500/*
1501 * Check specified ring for outstanding IOCB on the SLI queue
1502 * Return true if iocb matches the specified nport
1503 */
1504int
1505lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1506 struct lpfc_sli_ring * pring,
1507 struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1508{
1509 struct lpfc_sli *psli;
1510 IOCB_t *icmd;
1511
1512 psli = &phba->sli;
1513 icmd = &iocb->iocb;
1514 if (pring->ringno == LPFC_ELS_RING) {
1515 switch (icmd->ulpCommand) {
1516 case CMD_GEN_REQUEST64_CR:
1517 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1518 return 1;
dea3101e 1519 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1520 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1521 return 1;
dea3101e 1522 case CMD_XMIT_ELS_RSP64_CX:
1523 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1524 return 1;
dea3101e 1525 }
a4bc3379 1526 } else if (pring->ringno == psli->extra_ring) {
dea3101e 1527
1528 } else if (pring->ringno == psli->fcp_ring) {
1529 /* Skip match check if waiting to relogin to FCP target */
1530 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1531 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1532 return 0;
dea3101e 1533 }
1534 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1535 return 1;
dea3101e 1536 }
1537 } else if (pring->ringno == psli->next_ring) {
1538
1539 }
2fe165b6 1540 return 0;
dea3101e 1541}
1542
1543/*
1544 * Free resources / clean up outstanding I/Os
1545 * associated with nlp_rpi in the LPFC_NODELIST entry.
1546 */
1547static int
1548lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1549{
2534ba75 1550 LIST_HEAD(completions);
dea3101e 1551 struct lpfc_sli *psli;
1552 struct lpfc_sli_ring *pring;
1553 struct lpfc_iocbq *iocb, *next_iocb;
1554 IOCB_t *icmd;
1555 uint32_t rpi, i;
1556
1557 /*
1558 * Everything that matches on txcmplq will be returned
1559 * by firmware with a no rpi error.
1560 */
1561 psli = &phba->sli;
1562 rpi = ndlp->nlp_rpi;
1563 if (rpi) {
1564 /* Now process each ring */
1565 for (i = 0; i < psli->num_rings; i++) {
1566 pring = &psli->ring[i];
1567
1568 spin_lock_irq(phba->host->host_lock);
1569 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1570 list) {
1571 /*
1572 * Check to see if iocb matches the nport we are
1573 * looking for
1574 */
1575 if ((lpfc_check_sli_ndlp
1576 (phba, pring, iocb, ndlp))) {
1577 /* It matches, so deque and call compl
1578 with an error */
2534ba75
JS		 1579 list_move_tail(&iocb->list,
1580 &completions);
dea3101e 1581 pring->txq_cnt--;
dea3101e 1582 }
1583 }
1584 spin_unlock_irq(phba->host->host_lock);
1585
1586 }
1587 }
2534ba75
JS		 1588
1589 while (!list_empty(&completions)) {
1590 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1591 list_del(&iocb->list);
1592
1593 if (iocb->iocb_cmpl) {
1594 icmd = &iocb->iocb;
1595 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1596 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1597 (iocb->iocb_cmpl) (phba, iocb, iocb);
1598 } else
1599 lpfc_sli_release_iocbq(phba, iocb);
1600 }
1601
2fe165b6 1602 return 0;
dea3101e 1603}
1604
1605/*
1606 * Free rpi associated with LPFC_NODELIST entry.
1607 * This routine is called from lpfc_freenode(), when we are removing
1608 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1609 * LOGO that completes successfully, and we are waiting to PLOGI back
1610 * to the remote NPort. In addition, it is called after we receive
1611 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1612 * we are waiting to PLOGI back to the remote NPort.
1613 */
1614int
1615lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1616{
1617 LPFC_MBOXQ_t *mbox;
1618 int rc;
1619
1620 if (ndlp->nlp_rpi) {
1621 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1622 lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1623 mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1624 rc = lpfc_sli_issue_mbox
1625 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1626 if (rc == MBX_NOT_FINISHED)
1627 mempool_free( mbox, phba->mbox_mem_pool);
1628 }
dea3101e 1629 lpfc_no_rpi(phba, ndlp);
1630 ndlp->nlp_rpi = 0;
1631 return 1;
1632 }
1633 return 0;
1634}
1635
1636/*
1637 * Free resources associated with LPFC_NODELIST entry
1638 * so it can be freed.
1639 */
1640static int
1641lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1642{
1643 LPFC_MBOXQ_t *mb;
1644 LPFC_MBOXQ_t *nextmb;
1645 struct lpfc_dmabuf *mp;
dea3101e 1646
1647 /* Cleanup node for NPort <nlp_DID> */
1648 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1649 "%d:0900 Cleanup node for NPort x%x "
1650 "Data: x%x x%x x%x\n",
1651 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1652 ndlp->nlp_state, ndlp->nlp_rpi);
1653
de0c5b32 1654 lpfc_dequeue_node(phba, ndlp);
dea3101e 1655
dea3101e 1656 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1657 if ((mb = phba->sli.mbox_active)) {
1658 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1659 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1660 mb->context2 = NULL;
1661 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1662 }
1663 }
33ccf8d1
JS		 1664
1665 spin_lock_irq(phba->host->host_lock);
dea3101e 1666 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1667 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1668 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1669 mp = (struct lpfc_dmabuf *) (mb->context1);
1670 if (mp) {
1671 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1672 kfree(mp);
1673 }
1674 list_del(&mb->list);
1675 mempool_free(mb, phba->mbox_mem_pool);
329f9bc7 1676 lpfc_nlp_put(ndlp);
dea3101e 1677 }
1678 }
33ccf8d1 1679 spin_unlock_irq(phba->host->host_lock);
dea3101e 1680
07951076 1681 lpfc_els_abort(phba,ndlp);
dea3101e 1682 spin_lock_irq(phba->host->host_lock);
c01f3208 1683 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
dea3101e 1684 spin_unlock_irq(phba->host->host_lock);
dea3101e 1685
5024ab17 1686 ndlp->nlp_last_elscmd = 0;
dea3101e 1687 del_timer_sync(&ndlp->nlp_delayfunc);
1688
dea3101e 1689 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1690 list_del_init(&ndlp->els_retry_evt.evt_listp);
1691
1692 lpfc_unreg_rpi(phba, ndlp);
1693
2fe165b6 1694 return 0;
dea3101e 1695}
1696
1697/*
1698 * Check to see if we can free the nlp back to the freelist.
1699 * If we are in the middle of using the nlp in the discovery state
1700 * machine, defer the free till we reach the end of the state machine.
1701 */
329f9bc7
JS		 1702static void
1703lpfc_nlp_remove(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1704{
1dcb58e5 1705 struct lpfc_rport_data *rdata;
dea3101e 1706
1707 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
fdcebe28 1708 lpfc_cancel_retry_delay_tmo(phba, ndlp);
dea3101e 1709 }
1710
329f9bc7 1711 lpfc_freenode(phba, ndlp);
1dcb58e5 1712
329f9bc7
JS		 1713 if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1714 put_device(&ndlp->rport->dev);
1715 rdata = ndlp->rport->dd_data;
1716 rdata->pnode = NULL;
1717 ndlp->rport = NULL;
dea3101e 1718 }
dea3101e 1719}
1720
1721static int
1722lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1723{
1724 D_ID mydid;
1725 D_ID ndlpdid;
1726 D_ID matchdid;
1727
1728 if (did == Bcast_DID)
2fe165b6 1729 return 0;
dea3101e 1730
1731 if (ndlp->nlp_DID == 0) {
2fe165b6 1732 return 0;
dea3101e 1733 }
1734
1735 /* First check for Direct match */
1736 if (ndlp->nlp_DID == did)
2fe165b6 1737 return 1;
dea3101e 1738
1739 /* Next check for area/domain identically equals 0 match */
1740 mydid.un.word = phba->fc_myDID;
1741 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 1742 return 0;
dea3101e 1743 }
1744
1745 matchdid.un.word = did;
1746 ndlpdid.un.word = ndlp->nlp_DID;
1747 if (matchdid.un.b.id == ndlpdid.un.b.id) {
1748 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1749 (mydid.un.b.area == matchdid.un.b.area)) {
1750 if ((ndlpdid.un.b.domain == 0) &&
1751 (ndlpdid.un.b.area == 0)) {
1752 if (ndlpdid.un.b.id)
2fe165b6 1753 return 1;
dea3101e 1754 }
2fe165b6 1755 return 0;
dea3101e 1756 }
1757
1758 matchdid.un.word = ndlp->nlp_DID;
1759 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1760 (mydid.un.b.area == ndlpdid.un.b.area)) {
1761 if ((matchdid.un.b.domain == 0) &&
1762 (matchdid.un.b.area == 0)) {
1763 if (matchdid.un.b.id)
2fe165b6 1764 return 1;
dea3101e 1765 }
1766 }
1767 }
2fe165b6 1768 return 0;
dea3101e 1769}
1770
1771/* Search for a nodelist entry on a specific list */
1772struct lpfc_nodelist *
1773lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1774{
2fb9bd8b
JS		 1775 struct lpfc_nodelist *ndlp;
1776 struct list_head *lists[]={&phba->fc_nlpunmap_list,
1777 &phba->fc_nlpmap_list,
1778 &phba->fc_plogi_list,
1779 &phba->fc_adisc_list,
1780 &phba->fc_reglogin_list,
1781 &phba->fc_prli_list,
1782 &phba->fc_npr_list,
1783 &phba->fc_unused_list};
1784 uint32_t search[]={NLP_SEARCH_UNMAPPED,
1785 NLP_SEARCH_MAPPED,
1786 NLP_SEARCH_PLOGI,
1787 NLP_SEARCH_ADISC,
1788 NLP_SEARCH_REGLOGIN,
1789 NLP_SEARCH_PRLI,
1790 NLP_SEARCH_NPR,
1791 NLP_SEARCH_UNUSED};
1792 int i;
dea3101e 1793 uint32_t data1;
1794
66a9ed66 1795 spin_lock_irq(phba->host->host_lock);
2fb9bd8b
JS		 1796 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
1797 if (!(order & search[i]))
1798 continue;
1799 list_for_each_entry(ndlp, lists[i], nlp_listp) {
dea3101e 1800 if (lpfc_matchdid(phba, ndlp, did)) {
dea3101e 1801 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1802 ((uint32_t) ndlp->nlp_xri << 16) |
1803 ((uint32_t) ndlp->nlp_type << 8) |
1804 ((uint32_t) ndlp->nlp_rpi & 0xff));
dea3101e 1805 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
2fb9bd8b 1806 "%d:0929 FIND node DID "
dea3101e 1807 " Data: x%p x%x x%x x%x\n",
1808 phba->brd_no,
1809 ndlp, ndlp->nlp_DID,
1810 ndlp->nlp_flag, data1);
66a9ed66 1811 spin_unlock_irq(phba->host->host_lock);
2fe165b6 1812 return ndlp;
dea3101e 1813 }
1814 }
1815 }
66a9ed66
JW		 1816 spin_unlock_irq(phba->host->host_lock);
1817
dea3101e 1818 /* FIND node did <did> NOT FOUND */
2fb9bd8b 1819 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
dea3101e 1820 "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1821 phba->brd_no, did, order);
dea3101e 1822 return NULL;
1823}
1824
1825struct lpfc_nodelist *
1826lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1827{
1828 struct lpfc_nodelist *ndlp;
1829 uint32_t flg;
1830
c9f8735b
JW		 1831 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
1832 if (!ndlp) {
1833 if ((phba->fc_flag & FC_RSCN_MODE) &&
dea3101e 1834 ((lpfc_rscn_payload_check(phba, did) == 0)))
1835 return NULL;
1836 ndlp = (struct lpfc_nodelist *)
1837 mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1838 if (!ndlp)
1839 return NULL;
1840 lpfc_nlp_init(phba, ndlp, did);
de0c5b32 1841 lpfc_nlp_set_state(phba, ndlp, NLP_STE_NPR_NODE);
dea3101e 1842 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1843 return ndlp;
1844 }
c9f8735b 1845 if (phba->fc_flag & FC_RSCN_MODE) {
dea3101e 1846 if (lpfc_rscn_payload_check(phba, did)) {
1847 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
c9f8735b
JW		 1848
1849 /* Since this node is marked for discovery,
1850 * delay timeout is not needed.
1851 */
fdcebe28
JS		 1852 if (ndlp->nlp_flag & NLP_DELAY_TMO)
1853 lpfc_cancel_retry_delay_tmo(phba, ndlp);
071fbd3d 1854 } else
dea3101e 1855 ndlp = NULL;
2fe165b6 1856 } else {
dea3101e 1857 flg = ndlp->nlp_flag & NLP_LIST_MASK;
c9f8735b 1858 if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
dea3101e 1859 return NULL;
de0c5b32 1860 lpfc_nlp_set_state(phba, ndlp, NLP_STE_NPR_NODE);
dea3101e 1861 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1862 }
1863 return ndlp;
1864}
1865
1866/* Build a list of nodes to discover based on the loopmap */
1867void
1868lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1869{
1870 int j;
1871 uint32_t alpa, index;
1872
1873 if (phba->hba_state <= LPFC_LINK_DOWN) {
1874 return;
1875 }
1876 if (phba->fc_topology != TOPOLOGY_LOOP) {
1877 return;
1878 }
1879
1880 /* Check for loop map present or not */
1881 if (phba->alpa_map[0]) {
1882 for (j = 1; j <= phba->alpa_map[0]; j++) {
1883 alpa = phba->alpa_map[j];
1884
1885 if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1886 continue;
1887 }
1888 lpfc_setup_disc_node(phba, alpa);
1889 }
1890 } else {
1891 /* No alpamap, so try all alpa's */
1892 for (j = 0; j < FC_MAXLOOP; j++) {
1893 /* If cfg_scan_down is set, start from highest
1894 * ALPA (0xef) to lowest (0x1).
1895 */
1896 if (phba->cfg_scan_down)
1897 index = j;
1898 else
1899 index = FC_MAXLOOP - j - 1;
1900 alpa = lpfcAlpaArray[index];
1901 if ((phba->fc_myDID & 0xff) == alpa) {
1902 continue;
1903 }
1904
1905 lpfc_setup_disc_node(phba, alpa);
1906 }
1907 }
1908 return;
1909}
1910
1911/* Start Link up / RSCN discovery on NPR list */
1912void
1913lpfc_disc_start(struct lpfc_hba * phba)
1914{
1915 struct lpfc_sli *psli;
1916 LPFC_MBOXQ_t *mbox;
1917 struct lpfc_nodelist *ndlp, *next_ndlp;
1918 uint32_t did_changed, num_sent;
1919 uint32_t clear_la_pending;
1920 int rc;
1921
1922 psli = &phba->sli;
1923
1924 if (phba->hba_state <= LPFC_LINK_DOWN) {
1925 return;
1926 }
1927 if (phba->hba_state == LPFC_CLEAR_LA)
1928 clear_la_pending = 1;
1929 else
1930 clear_la_pending = 0;
1931
1932 if (phba->hba_state < LPFC_HBA_READY) {
1933 phba->hba_state = LPFC_DISC_AUTH;
1934 }
1935 lpfc_set_disctmo(phba);
1936
1937 if (phba->fc_prevDID == phba->fc_myDID) {
1938 did_changed = 0;
1939 } else {
1940 did_changed = 1;
1941 }
1942 phba->fc_prevDID = phba->fc_myDID;
1943 phba->num_disc_nodes = 0;
1944
1945 /* Start Discovery state <hba_state> */
1946 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1947 "%d:0202 Start Discovery hba state x%x "
1948 "Data: x%x x%x x%x\n",
1949 phba->brd_no, phba->hba_state, phba->fc_flag,
1950 phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1951
1952 /* If our did changed, we MUST do PLOGI */
1953 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1954 nlp_listp) {
1955 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1956 if (did_changed) {
1957 spin_lock_irq(phba->host->host_lock);
1958 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1959 spin_unlock_irq(phba->host->host_lock);
1960 }
1961 }
1962 }
1963
1964 /* First do ADISCs - if any */
1965 num_sent = lpfc_els_disc_adisc(phba);
1966
1967 if (num_sent)
1968 return;
1969
1970 if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1971 /* If we get here, there is nothing to ADISC */
1972 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1973 phba->hba_state = LPFC_CLEAR_LA;
1974 lpfc_clear_la(phba, mbox);
1975 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1976 rc = lpfc_sli_issue_mbox(phba, mbox,
1977 (MBX_NOWAIT | MBX_STOP_IOCB));
1978 if (rc == MBX_NOT_FINISHED) {
1979 mempool_free( mbox, phba->mbox_mem_pool);
1980 lpfc_disc_flush_list(phba);
a4bc3379 1981 psli->ring[(psli->extra_ring)].flag &=
dea3101e 1982 ~LPFC_STOP_IOCB_EVENT;
1983 psli->ring[(psli->fcp_ring)].flag &=
1984 ~LPFC_STOP_IOCB_EVENT;
1985 psli->ring[(psli->next_ring)].flag &=
1986 ~LPFC_STOP_IOCB_EVENT;
1987 phba->hba_state = LPFC_HBA_READY;
1988 }
1989 }
1990 } else {
1991 /* Next do PLOGIs - if any */
1992 num_sent = lpfc_els_disc_plogi(phba);
1993
1994 if (num_sent)
1995 return;
1996
1997 if (phba->fc_flag & FC_RSCN_MODE) {
1998 /* Check to see if more RSCNs came in while we
1999 * were processing this one.
2000 */
2001 if ((phba->fc_rscn_id_cnt == 0) &&
2002 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2003 spin_lock_irq(phba->host->host_lock);
2004 phba->fc_flag &= ~FC_RSCN_MODE;
2005 spin_unlock_irq(phba->host->host_lock);
2fe165b6 2006 } else
dea3101e 2007 lpfc_els_handle_rscn(phba);
2008 }
2009 }
2010 return;
2011}
2012
2013/*
2014 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2015 * ring the match the sppecified nodelist.
2016 */
2017static void
2018lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2019{
2534ba75 2020 LIST_HEAD(completions);
dea3101e 2021 struct lpfc_sli *psli;
2022 IOCB_t *icmd;
2023 struct lpfc_iocbq *iocb, *next_iocb;
2024 struct lpfc_sli_ring *pring;
dea3101e 2025
2026 psli = &phba->sli;
2027 pring = &psli->ring[LPFC_ELS_RING];
2028
2029 /* Error matching iocb on txq or txcmplq
2030 * First check the txq.
2031 */
2534ba75 2032 spin_lock_irq(phba->host->host_lock);
dea3101e 2033 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2034 if (iocb->context1 != ndlp) {
2035 continue;
2036 }
2037 icmd = &iocb->iocb;
2038 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2039 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2040
2534ba75 2041 list_move_tail(&iocb->list, &completions);
dea3101e 2042 pring->txq_cnt--;
dea3101e 2043 }
2044 }
2045
2046 /* Next check the txcmplq */
2047 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2048 if (iocb->context1 != ndlp) {
2049 continue;
2050 }
2051 icmd = &iocb->iocb;
2052 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2053 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2534ba75
JS		 2054 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2055 }
2056 }
2057 spin_unlock_irq(phba->host->host_lock);
dea3101e 2058
2534ba75
JS		 2059 while (!list_empty(&completions)) {
2060 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
2061 list_del(&iocb->list);
dea3101e 2062
2534ba75
JS		 2063 if (iocb->iocb_cmpl) {
2064 icmd = &iocb->iocb;
2065 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2066 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2067 (iocb->iocb_cmpl) (phba, iocb, iocb);
2068 } else
2069 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2070 }
2071
2072 return;
2073}
2074
2075void
2076lpfc_disc_flush_list(struct lpfc_hba * phba)
2077{
2078 struct lpfc_nodelist *ndlp, *next_ndlp;
2079
2080 if (phba->fc_plogi_cnt) {
2081 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2082 nlp_listp) {
2083 lpfc_free_tx(phba, ndlp);
329f9bc7 2084 lpfc_nlp_put(ndlp);
dea3101e 2085 }
2086 }
2087 if (phba->fc_adisc_cnt) {
2088 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2089 nlp_listp) {
2090 lpfc_free_tx(phba, ndlp);
329f9bc7 2091 lpfc_nlp_put(ndlp);
dea3101e 2092 }
2093 }
2094 return;
2095}
2096
2097/*****************************************************************************/
2098/*
2099 * NAME: lpfc_disc_timeout
2100 *
2101 * FUNCTION: Fibre Channel driver discovery timeout routine.
2102 *
2103 * EXECUTION ENVIRONMENT: interrupt only
2104 *
2105 * CALLED FROM:
2106 * Timer function
2107 *
2108 * RETURNS:
2109 * none
2110 */
2111/*****************************************************************************/
2112void
2113lpfc_disc_timeout(unsigned long ptr)
2114{
2115 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2116 unsigned long flags = 0;
2117
2118 if (unlikely(!phba))
2119 return;
2120
2121 spin_lock_irqsave(phba->host->host_lock, flags);
2122 if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2123 phba->work_hba_events |= WORKER_DISC_TMO;
2124 if (phba->work_wait)
2125 wake_up(phba->work_wait);
2126 }
2127 spin_unlock_irqrestore(phba->host->host_lock, flags);
2128 return;
2129}
2130
2131static void
2132lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2133{
2134 struct lpfc_sli *psli;
c9f8735b 2135 struct lpfc_nodelist *ndlp, *next_ndlp;
dea3101e 2136 LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2137 int rc, clrlaerr = 0;
2138
2139 if (unlikely(!phba))
2140 return;
2141
2142 if (!(phba->fc_flag & FC_DISC_TMO))
2143 return;
2144
2145 psli = &phba->sli;
2146
2147 spin_lock_irq(phba->host->host_lock);
2148 phba->fc_flag &= ~FC_DISC_TMO;
2149 spin_unlock_irq(phba->host->host_lock);
2150
2151 switch (phba->hba_state) {
2152
2153 case LPFC_LOCAL_CFG_LINK:
2154 /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2155 /* FAN timeout */
2156 lpfc_printf_log(phba,
2157 KERN_WARNING,
2158 LOG_DISCOVERY,
2159 "%d:0221 FAN timeout\n",
2160 phba->brd_no);
2161
c9f8735b
JW		 2162 /* Start discovery by sending FLOGI, clean up old rpis */
2163 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2164 nlp_listp) {
2165 if (ndlp->nlp_type & NLP_FABRIC) {
2166 /* Clean up the ndlp on Fabric connections */
de0c5b32 2167 lpfc_drop_node(phba, ndlp);
2fe165b6 2168 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2169 /* Fail outstanding IO now since device
2170 * is marked for PLOGI.
2171 */
2172 lpfc_unreg_rpi(phba, ndlp);
2173 }
2174 }
dea3101e 2175 phba->hba_state = LPFC_FLOGI;
2176 lpfc_set_disctmo(phba);
2177 lpfc_initial_flogi(phba);
2178 break;
2179
2180 case LPFC_FLOGI:
2181 /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2182 /* Initial FLOGI timeout */
2183 lpfc_printf_log(phba,
2184 KERN_ERR,
2185 LOG_DISCOVERY,
2186 "%d:0222 Initial FLOGI timeout\n",
2187 phba->brd_no);
2188
2189 /* Assume no Fabric and go on with discovery.
2190 * Check for outstanding ELS FLOGI to abort.
2191 */
2192
2193 /* FLOGI failed, so just use loop map to make discovery list */
2194 lpfc_disc_list_loopmap(phba);
2195
2196 /* Start discovery */
2197 lpfc_disc_start(phba);
2198 break;
2199
2200 case LPFC_FABRIC_CFG_LINK:
2201 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2202 NameServer login */
2203 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2204 "%d:0223 Timeout while waiting for NameServer "
2205 "login\n", phba->brd_no);
2206
2207 /* Next look for NameServer ndlp */
2208 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2209 if (ndlp)
329f9bc7 2210 lpfc_nlp_put(ndlp);
dea3101e 2211 /* Start discovery */
2212 lpfc_disc_start(phba);
2213 break;
2214
2215 case LPFC_NS_QRY:
2216 /* Check for wait for NameServer Rsp timeout */
2217 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2218 "%d:0224 NameServer Query timeout "
2219 "Data: x%x x%x\n",
2220 phba->brd_no,
2221 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2222
2223 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2224 NameServer_DID);
2225 if (ndlp) {
2226 if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2227 /* Try it one more time */
2228 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2229 if (rc == 0)
2230 break;
2231 }
2232 phba->fc_ns_retry = 0;
2233 }
2234
2235 /* Nothing to authenticate, so CLEAR_LA right now */
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:0226 Device Discovery "
2241 "completion error\n",
2242 phba->brd_no);
2243 phba->hba_state = LPFC_HBA_ERROR;
2244 break;
2245 }
2246
2247 phba->hba_state = LPFC_CLEAR_LA;
2248 lpfc_clear_la(phba, clearlambox);
2249 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2250 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2251 (MBX_NOWAIT | MBX_STOP_IOCB));
2252 if (rc == MBX_NOT_FINISHED) {
2253 mempool_free(clearlambox, phba->mbox_mem_pool);
2254 clrlaerr = 1;
2255 break;
2256 }
2257
2258 /* Setup and issue mailbox INITIALIZE LINK command */
2259 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2260 if (!initlinkmbox) {
2261 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dca9479b 2262 "%d:0206 Device Discovery "
dea3101e 2263 "completion error\n",
2264 phba->brd_no);
2265 phba->hba_state = LPFC_HBA_ERROR;
2266 break;
2267 }
2268
2269 lpfc_linkdown(phba);
2270 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2271 phba->cfg_link_speed);
2272 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2273 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2274 (MBX_NOWAIT | MBX_STOP_IOCB));
5b8bd0c9 2275 lpfc_set_loopback_flag(phba);
dea3101e 2276 if (rc == MBX_NOT_FINISHED)
2277 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2278
2279 break;
2280
2281 case LPFC_DISC_AUTH:
2282 /* Node Authentication timeout */
2283 lpfc_printf_log(phba,
2284 KERN_ERR,
2285 LOG_DISCOVERY,
2286 "%d:0227 Node Authentication timeout\n",
2287 phba->brd_no);
2288 lpfc_disc_flush_list(phba);
2289 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2290 if (!clearlambox) {
2291 clrlaerr = 1;
2292 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
dca9479b 2293 "%d:0207 Device Discovery "
dea3101e 2294 "completion error\n",
2295 phba->brd_no);
2296 phba->hba_state = LPFC_HBA_ERROR;
2297 break;
2298 }
2299 phba->hba_state = LPFC_CLEAR_LA;
2300 lpfc_clear_la(phba, clearlambox);
2301 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2302 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2303 (MBX_NOWAIT | MBX_STOP_IOCB));
2304 if (rc == MBX_NOT_FINISHED) {
2305 mempool_free(clearlambox, phba->mbox_mem_pool);
2306 clrlaerr = 1;
2307 }
2308 break;
2309
2310 case LPFC_CLEAR_LA:
2311 /* CLEAR LA timeout */
2312 lpfc_printf_log(phba,
2313 KERN_ERR,
2314 LOG_DISCOVERY,
2315 "%d:0228 CLEAR LA timeout\n",
2316 phba->brd_no);
2317 clrlaerr = 1;
2318 break;
2319
2320 case LPFC_HBA_READY:
2321 if (phba->fc_flag & FC_RSCN_MODE) {
2322 lpfc_printf_log(phba,
2323 KERN_ERR,
2324 LOG_DISCOVERY,
2325 "%d:0231 RSCN timeout Data: x%x x%x\n",
2326 phba->brd_no,
2327 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2328
2329 /* Cleanup any outstanding ELS commands */
2330 lpfc_els_flush_cmd(phba);
2331
2332 lpfc_els_flush_rscn(phba);
2333 lpfc_disc_flush_list(phba);
2334 }
2335 break;
2336 }
2337
2338 if (clrlaerr) {
2339 lpfc_disc_flush_list(phba);
a4bc3379 2340 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 2341 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2342 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2343 phba->hba_state = LPFC_HBA_READY;
2344 }
2345
2346 return;
2347}
2348
dea3101e 2349/*
2350 * This routine handles processing a NameServer REG_LOGIN mailbox
2351 * command upon completion. It is setup in the LPFC_MBOXQ
2352 * as the completion routine when the command is
2353 * handed off to the SLI layer.
2354 */
2355void
2356lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2357{
2358 struct lpfc_sli *psli;
2359 MAILBOX_t *mb;
2360 struct lpfc_dmabuf *mp;
2361 struct lpfc_nodelist *ndlp;
2362
2363 psli = &phba->sli;
2364 mb = &pmb->mb;
2365
2366 ndlp = (struct lpfc_nodelist *) pmb->context2;
2367 mp = (struct lpfc_dmabuf *) (pmb->context1);
2368
2369 pmb->context1 = NULL;
2370
dea3101e 2371 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2372 ndlp->nlp_type |= NLP_FABRIC;
de0c5b32 2373 lpfc_nlp_set_state(phba, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 2374
2375 /* Start issuing Fabric-Device Management Interface (FDMI)
2376 * command to 0xfffffa (FDMI well known port)
2377 */
2378 if (phba->cfg_fdmi_on == 1) {
2379 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2380 } else {
2381 /*
2382 * Delay issuing FDMI command if fdmi-on=2
2383 * (supporting RPA/hostnmae)
2384 */
2385 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2386 }
2387
329f9bc7
JS		 2388 /* Mailbox took a reference to the node */
2389 lpfc_nlp_put(ndlp);
dea3101e 2390 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2391 kfree(mp);
329f9bc7 2392 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 2393
2394 return;
2395}
2396
2397/*
21568f53
JSEC		 2398 * This routine looks up the ndlp lists
2399 * for the given RPI. If rpi found
dea3101e 2400 * it return the node list pointer
21568f53 2401 * else return NULL.
dea3101e 2402 */
2403struct lpfc_nodelist *
2534ba75 2404__lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
dea3101e 2405{
21568f53
JSEC		 2406 struct lpfc_nodelist *ndlp;
2407 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2408 &phba->fc_nlpmap_list,
2409 &phba->fc_plogi_list,
2410 &phba->fc_adisc_list,
2411 &phba->fc_reglogin_list};
2412 int i;
dea3101e 2413
21568f53
JSEC		 2414 for (i = 0; i < ARRAY_SIZE(lists); i++ )
2415 list_for_each_entry(ndlp, lists[i], nlp_listp)
66a9ed66 2416 if (ndlp->nlp_rpi == rpi) {
2fe165b6 2417 return ndlp;
66a9ed66 2418 }
21568f53 2419 return NULL;
dea3101e 2420}
2421
2534ba75
JS		 2422struct lpfc_nodelist *
2423lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2424{
2425 struct lpfc_nodelist *ndlp;
2426
2427 spin_lock_irq(phba->host->host_lock);
2428 ndlp = __lpfc_findnode_rpi(phba, rpi);
2429 spin_unlock_irq(phba->host->host_lock);
2430 return ndlp;
2431}
2432
488d1469
JS		 2433/*
2434 * This routine looks up the ndlp lists
2435 * for the given WWPN. If WWPN found
2436 * it return the node list pointer
2437 * else return NULL.
2438 */
2439struct lpfc_nodelist *
2440lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
2441 struct lpfc_name * wwpn)
2442{
2443 struct lpfc_nodelist *ndlp;
2444 struct list_head * lists[]={&phba->fc_nlpunmap_list,
2445 &phba->fc_nlpmap_list,
2446 &phba->fc_npr_list,
2447 &phba->fc_plogi_list,
2448 &phba->fc_adisc_list,
2449 &phba->fc_reglogin_list,
2450 &phba->fc_prli_list};
2451 uint32_t search[]={NLP_SEARCH_UNMAPPED,
2452 NLP_SEARCH_MAPPED,
2453 NLP_SEARCH_NPR,
2454 NLP_SEARCH_PLOGI,
2455 NLP_SEARCH_ADISC,
2456 NLP_SEARCH_REGLOGIN,
2457 NLP_SEARCH_PRLI};
2458 int i;
2459
2460 spin_lock_irq(phba->host->host_lock);
2461 for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
2462 if (!(order & search[i]))
2463 continue;
2464 list_for_each_entry(ndlp, lists[i], nlp_listp) {
2465 if (memcmp(&ndlp->nlp_portname, wwpn,
2466 sizeof(struct lpfc_name)) == 0) {
2467 spin_unlock_irq(phba->host->host_lock);
2468 return ndlp;
2469 }
2470 }
2471 }
2472 spin_unlock_irq(phba->host->host_lock);
2473 return NULL;
2474}
2475
dea3101e 2476void
329f9bc7 2477lpfc_nlp_init(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, uint32_t did)
dea3101e 2478{
2479 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
dea3101e 2480 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
dea3101e 2481 init_timer(&ndlp->nlp_delayfunc);
2482 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2483 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2484 ndlp->nlp_DID = did;
2485 ndlp->nlp_phba = phba;
2486 ndlp->nlp_sid = NLP_NO_SID;
329f9bc7 2487 kref_init(&ndlp->kref);
dea3101e 2488 return;
2489}
329f9bc7
JS		 2490
2491void
2492lpfc_nlp_release(struct kref *kref)
2493{
2494 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2495 kref);
2496 lpfc_nlp_remove(ndlp->nlp_phba, ndlp);
2497 mempool_free(ndlp, ndlp->nlp_phba->nlp_mem_pool);
2498}
2499
2500struct lpfc_nodelist *
2501lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2502{
2503 if (ndlp)
2504 kref_get(&ndlp->kref);
2505 return ndlp;
2506}
2507
2508int
2509lpfc_nlp_put(struct lpfc_nodelist *ndlp)
2510{
2511 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
2512}
Linux 6.x block layer and io_uring tree(s)