Merge branch 'master'
[linux-2.6] / drivers / scsi / lpfc / lpfc_hbadisc.c
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2004-2005 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 static void
60 lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
61 {
62         int warn_on = 0;
63
64         spin_lock_irq(phba->host->host_lock);
65         if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
66                 spin_unlock_irq(phba->host->host_lock);
67                 return;
68         }
69
70         ndlp->nlp_flag &= ~NLP_NODEV_TMO;
71
72         if (ndlp->nlp_sid != NLP_NO_SID) {
73                 warn_on = 1;
74                 /* flush the target */
75                 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
76                         ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
77         }
78         spin_unlock_irq(phba->host->host_lock);
79
80         if (warn_on) {
81                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
82                                 "%d:0203 Nodev timeout on NPort x%x "
83                                 "Data: x%x x%x x%x\n",
84                                 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
85                                 ndlp->nlp_state, ndlp->nlp_rpi);
86         } else {
87                 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
88                                 "%d:0204 Nodev timeout on NPort x%x "
89                                 "Data: x%x x%x x%x\n",
90                                 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
91                                 ndlp->nlp_state, ndlp->nlp_rpi);
92         }
93
94         lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
95         return;
96 }
97
98 static void
99 lpfc_work_list_done(struct lpfc_hba * phba)
100 {
101         struct lpfc_work_evt  *evtp = NULL;
102         struct lpfc_nodelist  *ndlp;
103         int free_evt;
104
105         spin_lock_irq(phba->host->host_lock);
106         while(!list_empty(&phba->work_list)) {
107                 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
108                                  evt_listp);
109                 spin_unlock_irq(phba->host->host_lock);
110                 free_evt = 1;
111                 switch(evtp->evt) {
112                 case LPFC_EVT_NODEV_TMO:
113                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
114                         lpfc_process_nodev_timeout(phba, ndlp);
115                         free_evt = 0;
116                         break;
117                 case LPFC_EVT_ELS_RETRY:
118                         ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
119                         lpfc_els_retry_delay_handler(ndlp);
120                         free_evt = 0;
121                         break;
122                 case LPFC_EVT_ONLINE:
123                         *(int *)(evtp->evt_arg1)  = lpfc_online(phba);
124                         complete((struct completion *)(evtp->evt_arg2));
125                         break;
126                 case LPFC_EVT_OFFLINE:
127                         *(int *)(evtp->evt_arg1)  = lpfc_offline(phba);
128                         complete((struct completion *)(evtp->evt_arg2));
129                         break;
130                 }
131                 if (free_evt)
132                         kfree(evtp);
133                 spin_lock_irq(phba->host->host_lock);
134         }
135         spin_unlock_irq(phba->host->host_lock);
136
137 }
138
139 static void
140 lpfc_work_done(struct lpfc_hba * phba)
141 {
142         struct lpfc_sli_ring *pring;
143         int i;
144         uint32_t ha_copy;
145         uint32_t control;
146         uint32_t work_hba_events;
147
148         spin_lock_irq(phba->host->host_lock);
149         ha_copy = phba->work_ha;
150         phba->work_ha = 0;
151         work_hba_events=phba->work_hba_events;
152         spin_unlock_irq(phba->host->host_lock);
153
154         if(ha_copy & HA_ERATT)
155                 lpfc_handle_eratt(phba);
156
157         if(ha_copy & HA_MBATT)
158                 lpfc_sli_handle_mb_event(phba);
159
160         if(ha_copy & HA_LATT)
161                 lpfc_handle_latt(phba);
162
163         if (work_hba_events & WORKER_DISC_TMO)
164                 lpfc_disc_timeout_handler(phba);
165
166         if (work_hba_events & WORKER_ELS_TMO)
167                 lpfc_els_timeout_handler(phba);
168
169         if (work_hba_events & WORKER_MBOX_TMO)
170                 lpfc_mbox_timeout_handler(phba);
171
172         if (work_hba_events & WORKER_FDMI_TMO)
173                 lpfc_fdmi_tmo_handler(phba);
174
175         spin_lock_irq(phba->host->host_lock);
176         phba->work_hba_events &= ~work_hba_events;
177         spin_unlock_irq(phba->host->host_lock);
178
179         for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
180                 pring = &phba->sli.ring[i];
181                 if ((ha_copy & HA_RXATT)
182                     || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
183                         if (pring->flag & LPFC_STOP_IOCB_MASK) {
184                                 pring->flag |= LPFC_DEFERRED_RING_EVENT;
185                         } else {
186                                 lpfc_sli_handle_slow_ring_event(phba, pring,
187                                                                 (ha_copy &
188                                                                  HA_RXMASK));
189                                 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
190                         }
191                         /*
192                          * Turn on Ring interrupts
193                          */
194                         spin_lock_irq(phba->host->host_lock);
195                         control = readl(phba->HCregaddr);
196                         control |= (HC_R0INT_ENA << i);
197                         writel(control, phba->HCregaddr);
198                         readl(phba->HCregaddr); /* flush */
199                         spin_unlock_irq(phba->host->host_lock);
200                 }
201         }
202
203         lpfc_work_list_done (phba);
204
205 }
206
207 static int
208 check_work_wait_done(struct lpfc_hba *phba) {
209
210         spin_lock_irq(phba->host->host_lock);
211         if (phba->work_ha ||
212             phba->work_hba_events ||
213             (!list_empty(&phba->work_list)) ||
214             kthread_should_stop()) {
215                 spin_unlock_irq(phba->host->host_lock);
216                 return 1;
217         } else {
218                 spin_unlock_irq(phba->host->host_lock);
219                 return 0;
220         }
221 }
222
223 int
224 lpfc_do_work(void *p)
225 {
226         struct lpfc_hba *phba = p;
227         int rc;
228         DECLARE_WAIT_QUEUE_HEAD(work_waitq);
229
230         set_user_nice(current, -20);
231         phba->work_wait = &work_waitq;
232
233         while (1) {
234
235                 rc = wait_event_interruptible(work_waitq,
236                                                 check_work_wait_done(phba));
237                 BUG_ON(rc);
238
239                 if (kthread_should_stop())
240                         break;
241
242                 lpfc_work_done(phba);
243
244         }
245         phba->work_wait = NULL;
246         return 0;
247 }
248
249 /*
250  * This is only called to handle FC worker events. Since this a rare
251  * occurance, we allocate a struct lpfc_work_evt structure here instead of
252  * embedding it in the IOCB.
253  */
254 int
255 lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
256                       uint32_t evt)
257 {
258         struct lpfc_work_evt  *evtp;
259
260         /*
261          * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
262          * be queued to worker thread for processing
263          */
264         evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
265         if (!evtp)
266                 return 0;
267
268         evtp->evt_arg1  = arg1;
269         evtp->evt_arg2  = arg2;
270         evtp->evt       = evt;
271
272         list_add_tail(&evtp->evt_listp, &phba->work_list);
273         spin_lock_irq(phba->host->host_lock);
274         if (phba->work_wait)
275                 wake_up(phba->work_wait);
276         spin_unlock_irq(phba->host->host_lock);
277
278         return 1;
279 }
280
281 int
282 lpfc_linkdown(struct lpfc_hba * phba)
283 {
284         struct lpfc_sli       *psli;
285         struct lpfc_nodelist  *ndlp, *next_ndlp;
286         struct list_head *listp;
287         struct list_head *node_list[7];
288         LPFC_MBOXQ_t     *mb;
289         int               rc, i;
290
291         psli = &phba->sli;
292
293         spin_lock_irq(phba->host->host_lock);
294         phba->hba_state = LPFC_LINK_DOWN;
295         spin_unlock_irq(phba->host->host_lock);
296
297         /* Clean up any firmware default rpi's */
298         if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
299                 lpfc_unreg_did(phba, 0xffffffff, mb);
300                 mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
301                 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
302                     == MBX_NOT_FINISHED) {
303                         mempool_free( mb, phba->mbox_mem_pool);
304                 }
305         }
306
307         /* Cleanup any outstanding RSCN activity */
308         lpfc_els_flush_rscn(phba);
309
310         /* Cleanup any outstanding ELS commands */
311         lpfc_els_flush_cmd(phba);
312
313         /* Issue a LINK DOWN event to all nodes */
314         node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
315         node_list[1] = &phba->fc_nlpmap_list;
316         node_list[2] = &phba->fc_nlpunmap_list;
317         node_list[3] = &phba->fc_prli_list;
318         node_list[4] = &phba->fc_reglogin_list;
319         node_list[5] = &phba->fc_adisc_list;
320         node_list[6] = &phba->fc_plogi_list;
321         for (i = 0; i < 7; i++) {
322                 listp = node_list[i];
323                 if (list_empty(listp))
324                         continue;
325
326                 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
327                         /* Fabric nodes are not handled thru state machine for
328                            link down */
329                         if (ndlp->nlp_type & NLP_FABRIC) {
330                                 /* Remove ALL Fabric nodes except Fabric_DID */
331                                 if (ndlp->nlp_DID != Fabric_DID) {
332                                         /* Take it off current list and free */
333                                         lpfc_nlp_list(phba, ndlp,
334                                                 NLP_NO_LIST);
335                                 }
336                         }
337                         else {
338
339                                 rc = lpfc_disc_state_machine(phba, ndlp, NULL,
340                                                      NLP_EVT_DEVICE_RECOVERY);
341
342                                 /* Check config parameter use-adisc or FCP-2 */
343                                 if ((rc != NLP_STE_FREED_NODE) &&
344                                         (phba->cfg_use_adisc == 0) &&
345                                         !(ndlp->nlp_fcp_info &
346                                                 NLP_FCP_2_DEVICE)) {
347                                         /* We know we will have to relogin, so
348                                          * unreglogin the rpi right now to fail
349                                          * any outstanding I/Os quickly.
350                                          */
351                                         lpfc_unreg_rpi(phba, ndlp);
352                                 }
353                         }
354                 }
355         }
356
357         /* free any ndlp's on unused list */
358         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
359                                 nlp_listp) {
360                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
361         }
362
363         /* Setup myDID for link up if we are in pt2pt mode */
364         if (phba->fc_flag & FC_PT2PT) {
365                 phba->fc_myDID = 0;
366                 if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
367                         lpfc_config_link(phba, mb);
368                         mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
369                         if (lpfc_sli_issue_mbox
370                             (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
371                             == MBX_NOT_FINISHED) {
372                                 mempool_free( mb, phba->mbox_mem_pool);
373                         }
374                 }
375                 spin_lock_irq(phba->host->host_lock);
376                 phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
377                 spin_unlock_irq(phba->host->host_lock);
378         }
379         spin_lock_irq(phba->host->host_lock);
380         phba->fc_flag &= ~FC_LBIT;
381         spin_unlock_irq(phba->host->host_lock);
382
383         /* Turn off discovery timer if its running */
384         lpfc_can_disctmo(phba);
385
386         /* Must process IOCBs on all rings to handle ABORTed I/Os */
387         return (0);
388 }
389
390 static int
391 lpfc_linkup(struct lpfc_hba * phba)
392 {
393         struct lpfc_nodelist *ndlp, *next_ndlp;
394
395         spin_lock_irq(phba->host->host_lock);
396         phba->hba_state = LPFC_LINK_UP;
397         phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
398                            FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
399         phba->fc_flag |= FC_NDISC_ACTIVE;
400         phba->fc_ns_retry = 0;
401         spin_unlock_irq(phba->host->host_lock);
402
403
404         /*
405          * Clean up old Fabric NLP_FABRIC logins.
406          */
407         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
408                                 nlp_listp) {
409                 if (ndlp->nlp_DID == Fabric_DID) {
410                         /* Take it off current list and free */
411                         lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
412                 }
413         }
414
415         /* free any ndlp's on unused list */
416         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
417                                 nlp_listp) {
418                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
419         }
420
421         return 0;
422 }
423
424 /*
425  * This routine handles processing a CLEAR_LA mailbox
426  * command upon completion. It is setup in the LPFC_MBOXQ
427  * as the completion routine when the command is
428  * handed off to the SLI layer.
429  */
430 void
431 lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
432 {
433         struct lpfc_sli *psli;
434         MAILBOX_t *mb;
435         uint32_t control;
436
437         psli = &phba->sli;
438         mb = &pmb->mb;
439         /* Since we don't do discovery right now, turn these off here */
440         psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
441         psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
442         psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
443
444         /* Check for error */
445         if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
446                 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
447                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
448                                 "%d:0320 CLEAR_LA mbxStatus error x%x hba "
449                                 "state x%x\n",
450                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
451
452                 phba->hba_state = LPFC_HBA_ERROR;
453                 goto out;
454         }
455
456         if (phba->fc_flag & FC_ABORT_DISCOVERY)
457                 goto out;
458
459         phba->num_disc_nodes = 0;
460         /* go thru NPR list and issue ELS PLOGIs */
461         if (phba->fc_npr_cnt) {
462                 lpfc_els_disc_plogi(phba);
463         }
464
465         if(!phba->num_disc_nodes) {
466                 spin_lock_irq(phba->host->host_lock);
467                 phba->fc_flag &= ~FC_NDISC_ACTIVE;
468                 spin_unlock_irq(phba->host->host_lock);
469         }
470
471         phba->hba_state = LPFC_HBA_READY;
472
473 out:
474         /* Device Discovery completes */
475         lpfc_printf_log(phba,
476                          KERN_INFO,
477                          LOG_DISCOVERY,
478                          "%d:0225 Device Discovery completes\n",
479                          phba->brd_no);
480
481         mempool_free( pmb, phba->mbox_mem_pool);
482
483         spin_lock_irq(phba->host->host_lock);
484         phba->fc_flag &= ~FC_ABORT_DISCOVERY;
485         if (phba->fc_flag & FC_ESTABLISH_LINK) {
486                 phba->fc_flag &= ~FC_ESTABLISH_LINK;
487         }
488         spin_unlock_irq(phba->host->host_lock);
489
490         del_timer_sync(&phba->fc_estabtmo);
491
492         lpfc_can_disctmo(phba);
493
494         /* turn on Link Attention interrupts */
495         spin_lock_irq(phba->host->host_lock);
496         psli->sli_flag |= LPFC_PROCESS_LA;
497         control = readl(phba->HCregaddr);
498         control |= HC_LAINT_ENA;
499         writel(control, phba->HCregaddr);
500         readl(phba->HCregaddr); /* flush */
501         spin_unlock_irq(phba->host->host_lock);
502
503         return;
504 }
505
506 static void
507 lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
508 {
509         struct lpfc_sli *psli;
510         MAILBOX_t *mb;
511
512         psli = &phba->sli;
513         mb = &pmb->mb;
514         /* Check for error */
515         if (mb->mbxStatus) {
516                 /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */
517                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
518                                 "%d:0306 CONFIG_LINK mbxStatus error x%x "
519                                 "HBA state x%x\n",
520                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
521
522                 lpfc_linkdown(phba);
523                 phba->hba_state = LPFC_HBA_ERROR;
524                 goto out;
525         }
526
527         if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
528                 if (phba->fc_topology == TOPOLOGY_LOOP) {
529                         /* If we are public loop and L bit was set */
530                         if ((phba->fc_flag & FC_PUBLIC_LOOP) &&
531                             !(phba->fc_flag & FC_LBIT)) {
532                                 /* Need to wait for FAN - use discovery timer
533                                  * for timeout.  hba_state is identically
534                                  * LPFC_LOCAL_CFG_LINK while waiting for FAN
535                                  */
536                                 lpfc_set_disctmo(phba);
537                                 mempool_free( pmb, phba->mbox_mem_pool);
538                                 return;
539                         }
540                 }
541
542                 /* Start discovery by sending a FLOGI hba_state is identically
543                  * LPFC_FLOGI while waiting for FLOGI cmpl
544                  */
545                 phba->hba_state = LPFC_FLOGI;
546                 lpfc_set_disctmo(phba);
547                 lpfc_initial_flogi(phba);
548                 mempool_free( pmb, phba->mbox_mem_pool);
549                 return;
550         }
551         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
552                 mempool_free( pmb, phba->mbox_mem_pool);
553                 return;
554         }
555
556 out:
557         /* CONFIG_LINK bad hba state <hba_state> */
558         lpfc_printf_log(phba,
559                         KERN_ERR,
560                         LOG_DISCOVERY,
561                         "%d:0200 CONFIG_LINK bad hba state x%x\n",
562                         phba->brd_no, phba->hba_state);
563
564         if (phba->hba_state != LPFC_CLEAR_LA) {
565                 lpfc_clear_la(phba, pmb);
566                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
567                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
568                     == MBX_NOT_FINISHED) {
569                         mempool_free( pmb, phba->mbox_mem_pool);
570                         lpfc_disc_flush_list(phba);
571                         psli->ring[(psli->ip_ring)].flag &=
572                                 ~LPFC_STOP_IOCB_EVENT;
573                         psli->ring[(psli->fcp_ring)].flag &=
574                                 ~LPFC_STOP_IOCB_EVENT;
575                         psli->ring[(psli->next_ring)].flag &=
576                                 ~LPFC_STOP_IOCB_EVENT;
577                         phba->hba_state = LPFC_HBA_READY;
578                 }
579         } else {
580                 mempool_free( pmb, phba->mbox_mem_pool);
581         }
582         return;
583 }
584
585 static void
586 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
587 {
588         struct lpfc_sli *psli = &phba->sli;
589         MAILBOX_t *mb = &pmb->mb;
590         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
591
592
593         /* Check for error */
594         if (mb->mbxStatus) {
595                 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
596                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
597                                 "%d:0319 READ_SPARAM mbxStatus error x%x "
598                                 "hba state x%x>\n",
599                                 phba->brd_no, mb->mbxStatus, phba->hba_state);
600
601                 lpfc_linkdown(phba);
602                 phba->hba_state = LPFC_HBA_ERROR;
603                 goto out;
604         }
605
606         memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
607                sizeof (struct serv_parm));
608         memcpy((uint8_t *) & phba->fc_nodename,
609                (uint8_t *) & phba->fc_sparam.nodeName,
610                sizeof (struct lpfc_name));
611         memcpy((uint8_t *) & phba->fc_portname,
612                (uint8_t *) & phba->fc_sparam.portName,
613                sizeof (struct lpfc_name));
614         lpfc_mbuf_free(phba, mp->virt, mp->phys);
615         kfree(mp);
616         mempool_free( pmb, phba->mbox_mem_pool);
617         return;
618
619 out:
620         pmb->context1 = NULL;
621         lpfc_mbuf_free(phba, mp->virt, mp->phys);
622         kfree(mp);
623         if (phba->hba_state != LPFC_CLEAR_LA) {
624                 lpfc_clear_la(phba, pmb);
625                 pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
626                 if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
627                     == MBX_NOT_FINISHED) {
628                         mempool_free( pmb, phba->mbox_mem_pool);
629                         lpfc_disc_flush_list(phba);
630                         psli->ring[(psli->ip_ring)].flag &=
631                             ~LPFC_STOP_IOCB_EVENT;
632                         psli->ring[(psli->fcp_ring)].flag &=
633                             ~LPFC_STOP_IOCB_EVENT;
634                         psli->ring[(psli->next_ring)].flag &=
635                             ~LPFC_STOP_IOCB_EVENT;
636                         phba->hba_state = LPFC_HBA_READY;
637                 }
638         } else {
639                 mempool_free( pmb, phba->mbox_mem_pool);
640         }
641         return;
642 }
643
644 static void
645 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
646 {
647         int i;
648         LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
649         sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
650         cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
651
652         spin_lock_irq(phba->host->host_lock);
653         switch(la->UlnkSpeed) {
654                 case LA_1GHZ_LINK:
655                         phba->fc_linkspeed = LA_1GHZ_LINK;
656                         break;
657                 case LA_2GHZ_LINK:
658                         phba->fc_linkspeed = LA_2GHZ_LINK;
659                         break;
660                 case LA_4GHZ_LINK:
661                         phba->fc_linkspeed = LA_4GHZ_LINK;
662                         break;
663                 default:
664                         phba->fc_linkspeed = LA_UNKNW_LINK;
665                         break;
666         }
667
668         phba->fc_topology = la->topology;
669
670         if (phba->fc_topology == TOPOLOGY_LOOP) {
671         /* Get Loop Map information */
672
673                 if (la->il)
674                         phba->fc_flag |= FC_LBIT;
675
676                 phba->fc_myDID = la->granted_AL_PA;
677                 i = la->un.lilpBde64.tus.f.bdeSize;
678
679                 if (i == 0) {
680                         phba->alpa_map[0] = 0;
681                 } else {
682                         if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
683                                 int numalpa, j, k;
684                                 union {
685                                         uint8_t pamap[16];
686                                         struct {
687                                                 uint32_t wd1;
688                                                 uint32_t wd2;
689                                                 uint32_t wd3;
690                                                 uint32_t wd4;
691                                         } pa;
692                                 } un;
693                                 numalpa = phba->alpa_map[0];
694                                 j = 0;
695                                 while (j < numalpa) {
696                                         memset(un.pamap, 0, 16);
697                                         for (k = 1; j < numalpa; k++) {
698                                                 un.pamap[k - 1] =
699                                                         phba->alpa_map[j + 1];
700                                                 j++;
701                                                 if (k == 16)
702                                                         break;
703                                         }
704                                         /* Link Up Event ALPA map */
705                                         lpfc_printf_log(phba,
706                                                 KERN_WARNING,
707                                                 LOG_LINK_EVENT,
708                                                 "%d:1304 Link Up Event "
709                                                 "ALPA map Data: x%x "
710                                                 "x%x x%x x%x\n",
711                                                 phba->brd_no,
712                                                 un.pa.wd1, un.pa.wd2,
713                                                 un.pa.wd3, un.pa.wd4);
714                                 }
715                         }
716                 }
717         } else {
718                 phba->fc_myDID = phba->fc_pref_DID;
719                 phba->fc_flag |= FC_LBIT;
720         }
721         spin_unlock_irq(phba->host->host_lock);
722
723         lpfc_linkup(phba);
724         if (sparam_mbox) {
725                 lpfc_read_sparam(phba, sparam_mbox);
726                 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
727                 lpfc_sli_issue_mbox(phba, sparam_mbox,
728                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
729         }
730
731         if (cfglink_mbox) {
732                 phba->hba_state = LPFC_LOCAL_CFG_LINK;
733                 lpfc_config_link(phba, cfglink_mbox);
734                 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link;
735                 lpfc_sli_issue_mbox(phba, cfglink_mbox,
736                                                 (MBX_NOWAIT | MBX_STOP_IOCB));
737         }
738 }
739
740 static void
741 lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
742         uint32_t control;
743         struct lpfc_sli *psli = &phba->sli;
744
745         lpfc_linkdown(phba);
746
747         /* turn on Link Attention interrupts - no CLEAR_LA needed */
748         spin_lock_irq(phba->host->host_lock);
749         psli->sli_flag |= LPFC_PROCESS_LA;
750         control = readl(phba->HCregaddr);
751         control |= HC_LAINT_ENA;
752         writel(control, phba->HCregaddr);
753         readl(phba->HCregaddr); /* flush */
754         spin_unlock_irq(phba->host->host_lock);
755 }
756
757 /*
758  * This routine handles processing a READ_LA mailbox
759  * command upon completion. It is setup in the LPFC_MBOXQ
760  * as the completion routine when the command is
761  * handed off to the SLI layer.
762  */
763 void
764 lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
765 {
766         READ_LA_VAR *la;
767         MAILBOX_t *mb = &pmb->mb;
768         struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
769
770         /* Check for error */
771         if (mb->mbxStatus) {
772                 lpfc_printf_log(phba,
773                                 KERN_INFO,
774                                 LOG_LINK_EVENT,
775                                 "%d:1307 READ_LA mbox error x%x state x%x\n",
776                                 phba->brd_no,
777                                 mb->mbxStatus, phba->hba_state);
778                 lpfc_mbx_issue_link_down(phba);
779                 phba->hba_state = LPFC_HBA_ERROR;
780                 goto lpfc_mbx_cmpl_read_la_free_mbuf;
781         }
782
783         la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
784
785         memcpy(&phba->alpa_map[0], mp->virt, 128);
786
787         if (((phba->fc_eventTag + 1) < la->eventTag) ||
788              (phba->fc_eventTag == la->eventTag)) {
789                 phba->fc_stat.LinkMultiEvent++;
790                 if (la->attType == AT_LINK_UP) {
791                         if (phba->fc_eventTag != 0)
792                                 lpfc_linkdown(phba);
793                 }
794         }
795
796         phba->fc_eventTag = la->eventTag;
797
798         if (la->attType == AT_LINK_UP) {
799                 phba->fc_stat.LinkUp++;
800                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
801                                 "%d:1303 Link Up Event x%x received "
802                                 "Data: x%x x%x x%x x%x\n",
803                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
804                                 la->granted_AL_PA, la->UlnkSpeed,
805                                 phba->alpa_map[0]);
806                 lpfc_mbx_process_link_up(phba, la);
807         } else {
808                 phba->fc_stat.LinkDown++;
809                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
810                                 "%d:1305 Link Down Event x%x received "
811                                 "Data: x%x x%x x%x\n",
812                                 phba->brd_no, la->eventTag, phba->fc_eventTag,
813                                 phba->hba_state, phba->fc_flag);
814                 lpfc_mbx_issue_link_down(phba);
815         }
816
817 lpfc_mbx_cmpl_read_la_free_mbuf:
818         lpfc_mbuf_free(phba, mp->virt, mp->phys);
819         kfree(mp);
820         mempool_free(pmb, phba->mbox_mem_pool);
821         return;
822 }
823
824 /*
825  * This routine handles processing a REG_LOGIN mailbox
826  * command upon completion. It is setup in the LPFC_MBOXQ
827  * as the completion routine when the command is
828  * handed off to the SLI layer.
829  */
830 void
831 lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
832 {
833         struct lpfc_sli *psli;
834         MAILBOX_t *mb;
835         struct lpfc_dmabuf *mp;
836         struct lpfc_nodelist *ndlp;
837
838         psli = &phba->sli;
839         mb = &pmb->mb;
840
841         ndlp = (struct lpfc_nodelist *) pmb->context2;
842         mp = (struct lpfc_dmabuf *) (pmb->context1);
843
844         pmb->context1 = NULL;
845
846         /* Good status, call state machine */
847         lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
848         lpfc_mbuf_free(phba, mp->virt, mp->phys);
849         kfree(mp);
850         mempool_free( pmb, phba->mbox_mem_pool);
851
852         return;
853 }
854
855 /*
856  * This routine handles processing a Fabric REG_LOGIN mailbox
857  * command upon completion. It is setup in the LPFC_MBOXQ
858  * as the completion routine when the command is
859  * handed off to the SLI layer.
860  */
861 void
862 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
863 {
864         struct lpfc_sli *psli;
865         MAILBOX_t *mb;
866         struct lpfc_dmabuf *mp;
867         struct lpfc_nodelist *ndlp;
868         struct lpfc_nodelist *ndlp_fdmi;
869
870
871         psli = &phba->sli;
872         mb = &pmb->mb;
873
874         ndlp = (struct lpfc_nodelist *) pmb->context2;
875         mp = (struct lpfc_dmabuf *) (pmb->context1);
876
877         if (mb->mbxStatus) {
878                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
879                 kfree(mp);
880                 mempool_free( pmb, phba->mbox_mem_pool);
881                 mempool_free( ndlp, phba->nlp_mem_pool);
882
883                 /* FLOGI failed, so just use loop map to make discovery list */
884                 lpfc_disc_list_loopmap(phba);
885
886                 /* Start discovery */
887                 lpfc_disc_start(phba);
888                 return;
889         }
890
891         pmb->context1 = NULL;
892
893         ndlp->nlp_rpi = mb->un.varWords[0];
894         ndlp->nlp_type |= NLP_FABRIC;
895         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
896         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
897
898         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
899                 /* This NPort has been assigned an NPort_ID by the fabric as a
900                  * result of the completed fabric login.  Issue a State Change
901                  * Registration (SCR) ELS request to the fabric controller
902                  * (SCR_DID) so that this NPort gets RSCN events from the
903                  * fabric.
904                  */
905                 lpfc_issue_els_scr(phba, SCR_DID, 0);
906
907                 /* Allocate a new node instance.  If the pool is empty, just
908                  * start the discovery process and skip the Nameserver login
909                  * process.  This is attempted again later on.  Otherwise, issue
910                  * a Port Login (PLOGI) to the NameServer
911                  */
912                 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
913                     == 0) {
914                         lpfc_disc_start(phba);
915                 } else {
916                         lpfc_nlp_init(phba, ndlp, NameServer_DID);
917                         ndlp->nlp_type |= NLP_FABRIC;
918                         ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
919                         lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
920                         lpfc_issue_els_plogi(phba, ndlp, 0);
921                         if (phba->cfg_fdmi_on) {
922                                 if ((ndlp_fdmi = mempool_alloc(
923                                                        phba->nlp_mem_pool,
924                                                        GFP_KERNEL))) {
925                                         lpfc_nlp_init(phba, ndlp_fdmi,
926                                                 FDMI_DID);
927                                         ndlp_fdmi->nlp_type |= NLP_FABRIC;
928                                         ndlp_fdmi->nlp_state =
929                                             NLP_STE_PLOGI_ISSUE;
930                                         lpfc_issue_els_plogi(phba, ndlp_fdmi,
931                                                              0);
932                                 }
933                         }
934                 }
935         }
936
937         lpfc_mbuf_free(phba, mp->virt, mp->phys);
938         kfree(mp);
939         mempool_free( pmb, phba->mbox_mem_pool);
940
941         return;
942 }
943
944 /*
945  * This routine handles processing a NameServer REG_LOGIN mailbox
946  * command upon completion. It is setup in the LPFC_MBOXQ
947  * as the completion routine when the command is
948  * handed off to the SLI layer.
949  */
950 void
951 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
952 {
953         struct lpfc_sli *psli;
954         MAILBOX_t *mb;
955         struct lpfc_dmabuf *mp;
956         struct lpfc_nodelist *ndlp;
957
958         psli = &phba->sli;
959         mb = &pmb->mb;
960
961         ndlp = (struct lpfc_nodelist *) pmb->context2;
962         mp = (struct lpfc_dmabuf *) (pmb->context1);
963
964         if (mb->mbxStatus) {
965                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
966                 kfree(mp);
967                 mempool_free( pmb, phba->mbox_mem_pool);
968                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
969
970                 /* RegLogin failed, so just use loop map to make discovery
971                    list */
972                 lpfc_disc_list_loopmap(phba);
973
974                 /* Start discovery */
975                 lpfc_disc_start(phba);
976                 return;
977         }
978
979         pmb->context1 = NULL;
980
981         ndlp->nlp_rpi = mb->un.varWords[0];
982         ndlp->nlp_type |= NLP_FABRIC;
983         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
984         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
985
986         if (phba->hba_state < LPFC_HBA_READY) {
987                 /* Link up discovery requires Fabrib registration. */
988                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
989                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
990                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
991         }
992
993         phba->fc_ns_retry = 0;
994         /* Good status, issue CT Request to NameServer */
995         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
996                 /* Cannot issue NameServer Query, so finish up discovery */
997                 lpfc_disc_start(phba);
998         }
999
1000         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1001         kfree(mp);
1002         mempool_free( pmb, phba->mbox_mem_pool);
1003
1004         return;
1005 }
1006
1007 static void
1008 lpfc_register_remote_port(struct lpfc_hba * phba,
1009                             struct lpfc_nodelist * ndlp)
1010 {
1011         struct fc_rport *rport;
1012         struct lpfc_rport_data *rdata;
1013         struct fc_rport_identifiers rport_ids;
1014
1015         /* Remote port has reappeared. Re-register w/ FC transport */
1016         rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1017         rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1018         rport_ids.port_id = ndlp->nlp_DID;
1019         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1020         if (ndlp->nlp_type & NLP_FCP_TARGET)
1021                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1022         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1023                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1024
1025         scsi_block_requests(phba->host);
1026         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1027         if (!rport) {
1028                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1029                            "Warning: fc_remote_port_add failed\n");
1030                 return;
1031         }
1032
1033         /* initialize static port data */
1034         rport->maxframe_size = ndlp->nlp_maxframe;
1035         rport->supported_classes = ndlp->nlp_class_sup;
1036         if ((rport->scsi_target_id != -1) &&
1037                 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1038                 ndlp->nlp_sid = rport->scsi_target_id;
1039         }
1040         rdata = rport->dd_data;
1041         rdata->pnode = ndlp;
1042         scsi_unblock_requests(phba->host);
1043
1044         return;
1045 }
1046
1047 static void
1048 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1049                             struct lpfc_nodelist * ndlp)
1050 {
1051         struct fc_rport *rport = ndlp->rport;
1052         struct lpfc_rport_data *rdata = rport->dd_data;
1053
1054         ndlp->rport = NULL;
1055         rdata->pnode = NULL;
1056         scsi_block_requests(phba->host);
1057         fc_remote_port_delete(rport);
1058         scsi_unblock_requests(phba->host);
1059
1060         return;
1061 }
1062
1063 int
1064 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1065 {
1066         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1067         struct lpfc_sli      *psli;
1068
1069         psli = &phba->sli;
1070         /* Sanity check to ensure we are not moving to / from the same list */
1071         if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1072                 if (list != NLP_NO_LIST)
1073                         return(0);
1074         }
1075
1076         switch(nlp->nlp_flag & NLP_LIST_MASK) {
1077         case NLP_NO_LIST: /* Not on any list */
1078                 break;
1079         case NLP_UNUSED_LIST:
1080                 phba->fc_unused_cnt--;
1081                 list_del(&nlp->nlp_listp);
1082                 break;
1083         case NLP_PLOGI_LIST:
1084                 phba->fc_plogi_cnt--;
1085                 list_del(&nlp->nlp_listp);
1086                 break;
1087         case NLP_ADISC_LIST:
1088                 phba->fc_adisc_cnt--;
1089                 list_del(&nlp->nlp_listp);
1090                 break;
1091         case NLP_REGLOGIN_LIST:
1092                 phba->fc_reglogin_cnt--;
1093                 list_del(&nlp->nlp_listp);
1094                 break;
1095         case NLP_PRLI_LIST:
1096                 phba->fc_prli_cnt--;
1097                 list_del(&nlp->nlp_listp);
1098                 break;
1099         case NLP_UNMAPPED_LIST:
1100                 phba->fc_unmap_cnt--;
1101                 list_del(&nlp->nlp_listp);
1102                 spin_lock_irq(phba->host->host_lock);
1103                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1104                 nlp->nlp_type &= ~NLP_FC_NODE;
1105                 spin_unlock_irq(phba->host->host_lock);
1106                 phba->nport_event_cnt++;
1107                 if (nlp->rport)
1108                         rport_del = unmapped;
1109                 break;
1110         case NLP_MAPPED_LIST:
1111                 phba->fc_map_cnt--;
1112                 list_del(&nlp->nlp_listp);
1113                 phba->nport_event_cnt++;
1114                 if (nlp->rport)
1115                         rport_del = mapped;
1116                 break;
1117         case NLP_NPR_LIST:
1118                 phba->fc_npr_cnt--;
1119                 list_del(&nlp->nlp_listp);
1120                 /* Stop delay tmo if taking node off NPR list */
1121                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1122                    (list != NLP_NPR_LIST)) {
1123                         spin_lock_irq(phba->host->host_lock);
1124                         nlp->nlp_flag &= ~NLP_DELAY_TMO;
1125                         spin_unlock_irq(phba->host->host_lock);
1126                         del_timer_sync(&nlp->nlp_delayfunc);
1127                         if (!list_empty(&nlp->els_retry_evt.evt_listp))
1128                                 list_del_init(&nlp->els_retry_evt.evt_listp);
1129                 }
1130                 break;
1131         }
1132
1133         spin_lock_irq(phba->host->host_lock);
1134         nlp->nlp_flag &= ~NLP_LIST_MASK;
1135         spin_unlock_irq(phba->host->host_lock);
1136
1137         /* Add NPort <did> to <num> list */
1138         lpfc_printf_log(phba,
1139                         KERN_INFO,
1140                         LOG_NODE,
1141                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1142                         phba->brd_no,
1143                         nlp->nlp_DID, list, nlp->nlp_flag);
1144
1145         switch(list) {
1146         case NLP_NO_LIST: /* No list, just remove it */
1147                 lpfc_nlp_remove(phba, nlp);
1148                 /* as node removed - stop further transport calls */
1149                 rport_del = none;
1150                 break;
1151         case NLP_UNUSED_LIST:
1152                 spin_lock_irq(phba->host->host_lock);
1153                 nlp->nlp_flag |= list;
1154                 spin_unlock_irq(phba->host->host_lock);
1155                 /* Put it at the end of the unused list */
1156                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1157                 phba->fc_unused_cnt++;
1158                 break;
1159         case NLP_PLOGI_LIST:
1160                 spin_lock_irq(phba->host->host_lock);
1161                 nlp->nlp_flag |= list;
1162                 spin_unlock_irq(phba->host->host_lock);
1163                 /* Put it at the end of the plogi list */
1164                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1165                 phba->fc_plogi_cnt++;
1166                 break;
1167         case NLP_ADISC_LIST:
1168                 spin_lock_irq(phba->host->host_lock);
1169                 nlp->nlp_flag |= list;
1170                 spin_unlock_irq(phba->host->host_lock);
1171                 /* Put it at the end of the adisc list */
1172                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1173                 phba->fc_adisc_cnt++;
1174                 break;
1175         case NLP_REGLOGIN_LIST:
1176                 spin_lock_irq(phba->host->host_lock);
1177                 nlp->nlp_flag |= list;
1178                 spin_unlock_irq(phba->host->host_lock);
1179                 /* Put it at the end of the reglogin list */
1180                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1181                 phba->fc_reglogin_cnt++;
1182                 break;
1183         case NLP_PRLI_LIST:
1184                 spin_lock_irq(phba->host->host_lock);
1185                 nlp->nlp_flag |= list;
1186                 spin_unlock_irq(phba->host->host_lock);
1187                 /* Put it at the end of the prli list */
1188                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1189                 phba->fc_prli_cnt++;
1190                 break;
1191         case NLP_UNMAPPED_LIST:
1192                 rport_add = unmapped;
1193                 /* ensure all vestiges of "mapped" significance are gone */
1194                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1195                 spin_lock_irq(phba->host->host_lock);
1196                 nlp->nlp_flag |= list;
1197                 spin_unlock_irq(phba->host->host_lock);
1198                 /* Put it at the end of the unmap list */
1199                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1200                 phba->fc_unmap_cnt++;
1201                 phba->nport_event_cnt++;
1202                 /* stop nodev tmo if running */
1203                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1204                         spin_lock_irq(phba->host->host_lock);
1205                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1206                         spin_unlock_irq(phba->host->host_lock);
1207                         del_timer_sync(&nlp->nlp_tmofunc);
1208                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1209                                 list_del_init(&nlp->nodev_timeout_evt.
1210                                                 evt_listp);
1211
1212                 }
1213                 nlp->nlp_type |= NLP_FC_NODE;
1214                 break;
1215         case NLP_MAPPED_LIST:
1216                 rport_add = mapped;
1217                 spin_lock_irq(phba->host->host_lock);
1218                 nlp->nlp_flag |= list;
1219                 spin_unlock_irq(phba->host->host_lock);
1220                 /* Put it at the end of the map list */
1221                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1222                 phba->fc_map_cnt++;
1223                 phba->nport_event_cnt++;
1224                 /* stop nodev tmo if running */
1225                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1226                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1227                         del_timer_sync(&nlp->nlp_tmofunc);
1228                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1229                                 list_del_init(&nlp->nodev_timeout_evt.
1230                                                 evt_listp);
1231
1232                 }
1233                 break;
1234         case NLP_NPR_LIST:
1235                 spin_lock_irq(phba->host->host_lock);
1236                 nlp->nlp_flag |= list;
1237                 spin_unlock_irq(phba->host->host_lock);
1238                 /* Put it at the end of the npr list */
1239                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1240                 phba->fc_npr_cnt++;
1241
1242                 /*
1243                  * Sanity check for Fabric entity.
1244                  * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1245                  */
1246                 if (nlp->nlp_type & NLP_FABRIC) {
1247                         mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1248                 }
1249                 else {
1250                         mod_timer(&nlp->nlp_tmofunc,
1251                             jiffies + HZ * phba->cfg_nodev_tmo);
1252                 }
1253                 spin_lock_irq(phba->host->host_lock);
1254                 nlp->nlp_flag |= NLP_NODEV_TMO;
1255                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1256                 spin_unlock_irq(phba->host->host_lock);
1257                 break;
1258         case NLP_JUST_DQ:
1259                 break;
1260         }
1261
1262         /*
1263          * We make all the calls into the transport after we have
1264          * moved the node between lists. This so that we don't
1265          * release the lock while in-between lists.
1266          */
1267
1268         /* Don't upcall midlayer if we're unloading */
1269         if (!(phba->fc_flag & FC_UNLOADING)) {
1270                 /*
1271                  * We revalidate the rport pointer as the "add" function
1272                  * may have removed the remote port.
1273                  */
1274                 if ((rport_del != none) && nlp->rport)
1275                         lpfc_unregister_remote_port(phba, nlp);
1276
1277                 if (rport_add != none) {
1278                         /*
1279                          * Tell the fc transport about the port, if we haven't
1280                          * already. If we have, and it's a scsi entity, be
1281                          * sure to unblock any attached scsi devices
1282                          */
1283                         if (!nlp->rport)
1284                                 lpfc_register_remote_port(phba, nlp);
1285
1286                         /*
1287                          * if we added to Mapped list, but the remote port
1288                          * registration failed or assigned a target id outside
1289                          * our presentable range - move the node to the
1290                          * Unmapped List
1291                          */
1292                         if ((rport_add == mapped) &&
1293                             ((!nlp->rport) ||
1294                              (nlp->rport->scsi_target_id == -1) ||
1295                              (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1296                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1297                                 spin_lock_irq(phba->host->host_lock);
1298                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1299                                 spin_unlock_irq(phba->host->host_lock);
1300                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1301                         }
1302                 }
1303         }
1304         return (0);
1305 }
1306
1307 /*
1308  * Start / ReStart rescue timer for Discovery / RSCN handling
1309  */
1310 void
1311 lpfc_set_disctmo(struct lpfc_hba * phba)
1312 {
1313         uint32_t tmo;
1314
1315         tmo = ((phba->fc_ratov * 2) + 1);
1316
1317         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1318         spin_lock_irq(phba->host->host_lock);
1319         phba->fc_flag |= FC_DISC_TMO;
1320         spin_unlock_irq(phba->host->host_lock);
1321
1322         /* Start Discovery Timer state <hba_state> */
1323         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1324                         "%d:0247 Start Discovery Timer state x%x "
1325                         "Data: x%x x%lx x%x x%x\n",
1326                         phba->brd_no,
1327                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1328                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1329
1330         return;
1331 }
1332
1333 /*
1334  * Cancel rescue timer for Discovery / RSCN handling
1335  */
1336 int
1337 lpfc_can_disctmo(struct lpfc_hba * phba)
1338 {
1339         /* Turn off discovery timer if its running */
1340         if (phba->fc_flag & FC_DISC_TMO) {
1341                 spin_lock_irq(phba->host->host_lock);
1342                 phba->fc_flag &= ~FC_DISC_TMO;
1343                 spin_unlock_irq(phba->host->host_lock);
1344                 del_timer_sync(&phba->fc_disctmo);
1345                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1346         }
1347
1348         /* Cancel Discovery Timer state <hba_state> */
1349         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1350                         "%d:0248 Cancel Discovery Timer state x%x "
1351                         "Data: x%x x%x x%x\n",
1352                         phba->brd_no, phba->hba_state, phba->fc_flag,
1353                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1354
1355         return (0);
1356 }
1357
1358 /*
1359  * Check specified ring for outstanding IOCB on the SLI queue
1360  * Return true if iocb matches the specified nport
1361  */
1362 int
1363 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1364                     struct lpfc_sli_ring * pring,
1365                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1366 {
1367         struct lpfc_sli *psli;
1368         IOCB_t *icmd;
1369
1370         psli = &phba->sli;
1371         icmd = &iocb->iocb;
1372         if (pring->ringno == LPFC_ELS_RING) {
1373                 switch (icmd->ulpCommand) {
1374                 case CMD_GEN_REQUEST64_CR:
1375                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1376                                 return (1);
1377                 case CMD_ELS_REQUEST64_CR:
1378                 case CMD_XMIT_ELS_RSP64_CX:
1379                         if (iocb->context1 == (uint8_t *) ndlp)
1380                                 return (1);
1381                 }
1382         } else if (pring->ringno == psli->ip_ring) {
1383
1384         } else if (pring->ringno == psli->fcp_ring) {
1385                 /* Skip match check if waiting to relogin to FCP target */
1386                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1387                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1388                         return (0);
1389                 }
1390                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1391                         return (1);
1392                 }
1393         } else if (pring->ringno == psli->next_ring) {
1394
1395         }
1396         return (0);
1397 }
1398
1399 /*
1400  * Free resources / clean up outstanding I/Os
1401  * associated with nlp_rpi in the LPFC_NODELIST entry.
1402  */
1403 static int
1404 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1405 {
1406         struct lpfc_sli *psli;
1407         struct lpfc_sli_ring *pring;
1408         struct lpfc_iocbq *iocb, *next_iocb;
1409         IOCB_t *icmd;
1410         uint32_t rpi, i;
1411
1412         /*
1413          * Everything that matches on txcmplq will be returned
1414          * by firmware with a no rpi error.
1415          */
1416         psli = &phba->sli;
1417         rpi = ndlp->nlp_rpi;
1418         if (rpi) {
1419                 /* Now process each ring */
1420                 for (i = 0; i < psli->num_rings; i++) {
1421                         pring = &psli->ring[i];
1422
1423                         spin_lock_irq(phba->host->host_lock);
1424                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1425                                                 list) {
1426                                 /*
1427                                  * Check to see if iocb matches the nport we are
1428                                  * looking for
1429                                  */
1430                                 if ((lpfc_check_sli_ndlp
1431                                      (phba, pring, iocb, ndlp))) {
1432                                         /* It matches, so deque and call compl
1433                                            with an error */
1434                                         list_del(&iocb->list);
1435                                         pring->txq_cnt--;
1436                                         if (iocb->iocb_cmpl) {
1437                                                 icmd = &iocb->iocb;
1438                                                 icmd->ulpStatus =
1439                                                     IOSTAT_LOCAL_REJECT;
1440                                                 icmd->un.ulpWord[4] =
1441                                                     IOERR_SLI_ABORTED;
1442                                                 spin_unlock_irq(phba->host->
1443                                                                 host_lock);
1444                                                 (iocb->iocb_cmpl) (phba,
1445                                                                    iocb, iocb);
1446                                                 spin_lock_irq(phba->host->
1447                                                               host_lock);
1448                                         } else
1449                                                 lpfc_sli_release_iocbq(phba,
1450                                                                        iocb);
1451                                 }
1452                         }
1453                         spin_unlock_irq(phba->host->host_lock);
1454
1455                 }
1456         }
1457         return (0);
1458 }
1459
1460 /*
1461  * Free rpi associated with LPFC_NODELIST entry.
1462  * This routine is called from lpfc_freenode(), when we are removing
1463  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1464  * LOGO that completes successfully, and we are waiting to PLOGI back
1465  * to the remote NPort. In addition, it is called after we receive
1466  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1467  * we are waiting to PLOGI back to the remote NPort.
1468  */
1469 int
1470 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1471 {
1472         LPFC_MBOXQ_t *mbox;
1473         int rc;
1474
1475         if (ndlp->nlp_rpi) {
1476                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1477                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1478                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1479                         rc = lpfc_sli_issue_mbox
1480                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1481                         if (rc == MBX_NOT_FINISHED)
1482                                 mempool_free( mbox, phba->mbox_mem_pool);
1483                 }
1484                 lpfc_no_rpi(phba, ndlp);
1485                 ndlp->nlp_rpi = 0;
1486                 return 1;
1487         }
1488         return 0;
1489 }
1490
1491 /*
1492  * Free resources associated with LPFC_NODELIST entry
1493  * so it can be freed.
1494  */
1495 static int
1496 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1497 {
1498         LPFC_MBOXQ_t       *mb;
1499         LPFC_MBOXQ_t       *nextmb;
1500         struct lpfc_dmabuf *mp;
1501
1502         /* Cleanup node for NPort <nlp_DID> */
1503         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1504                         "%d:0900 Cleanup node for NPort x%x "
1505                         "Data: x%x x%x x%x\n",
1506                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1507                         ndlp->nlp_state, ndlp->nlp_rpi);
1508
1509         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1510
1511         /*
1512          * if unloading the driver - just leave the remote port in place.
1513          * The driver unload will force the attached devices to detach
1514          * and flush cache's w/o generating flush errors.
1515          */
1516         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1517                 lpfc_unregister_remote_port(phba, ndlp);
1518                 ndlp->nlp_sid = NLP_NO_SID;
1519         }
1520
1521         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1522         if ((mb = phba->sli.mbox_active)) {
1523                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1524                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1525                         mb->context2 = NULL;
1526                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1527                 }
1528         }
1529         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1530                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1531                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1532                         mp = (struct lpfc_dmabuf *) (mb->context1);
1533                         if (mp) {
1534                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1535                                 kfree(mp);
1536                         }
1537                         list_del(&mb->list);
1538                         mempool_free(mb, phba->mbox_mem_pool);
1539                 }
1540         }
1541
1542         lpfc_els_abort(phba,ndlp,0);
1543         spin_lock_irq(phba->host->host_lock);
1544         ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1545         spin_unlock_irq(phba->host->host_lock);
1546         del_timer_sync(&ndlp->nlp_tmofunc);
1547
1548         del_timer_sync(&ndlp->nlp_delayfunc);
1549
1550         if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1551                 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1552         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1553                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1554
1555         lpfc_unreg_rpi(phba, ndlp);
1556
1557         return (0);
1558 }
1559
1560 /*
1561  * Check to see if we can free the nlp back to the freelist.
1562  * If we are in the middle of using the nlp in the discovery state
1563  * machine, defer the free till we reach the end of the state machine.
1564  */
1565 int
1566 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1567 {
1568         if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1569                 spin_lock_irq(phba->host->host_lock);
1570                 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1571                 spin_unlock_irq(phba->host->host_lock);
1572                 del_timer_sync(&ndlp->nlp_tmofunc);
1573                 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1574                         list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1575
1576         }
1577
1578
1579         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1580                 spin_lock_irq(phba->host->host_lock);
1581                 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1582                 spin_unlock_irq(phba->host->host_lock);
1583                 del_timer_sync(&ndlp->nlp_delayfunc);
1584                 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1585                         list_del_init(&ndlp->els_retry_evt.evt_listp);
1586         }
1587
1588         if (ndlp->nlp_disc_refcnt) {
1589                 spin_lock_irq(phba->host->host_lock);
1590                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1591                 spin_unlock_irq(phba->host->host_lock);
1592         }
1593         else {
1594                 lpfc_freenode(phba, ndlp);
1595                 mempool_free( ndlp, phba->nlp_mem_pool);
1596         }
1597         return(0);
1598 }
1599
1600 static int
1601 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1602 {
1603         D_ID mydid;
1604         D_ID ndlpdid;
1605         D_ID matchdid;
1606
1607         if (did == Bcast_DID)
1608                 return (0);
1609
1610         if (ndlp->nlp_DID == 0) {
1611                 return (0);
1612         }
1613
1614         /* First check for Direct match */
1615         if (ndlp->nlp_DID == did)
1616                 return (1);
1617
1618         /* Next check for area/domain identically equals 0 match */
1619         mydid.un.word = phba->fc_myDID;
1620         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1621                 return (0);
1622         }
1623
1624         matchdid.un.word = did;
1625         ndlpdid.un.word = ndlp->nlp_DID;
1626         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1627                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1628                     (mydid.un.b.area == matchdid.un.b.area)) {
1629                         if ((ndlpdid.un.b.domain == 0) &&
1630                             (ndlpdid.un.b.area == 0)) {
1631                                 if (ndlpdid.un.b.id)
1632                                         return (1);
1633                         }
1634                         return (0);
1635                 }
1636
1637                 matchdid.un.word = ndlp->nlp_DID;
1638                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1639                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1640                         if ((matchdid.un.b.domain == 0) &&
1641                             (matchdid.un.b.area == 0)) {
1642                                 if (matchdid.un.b.id)
1643                                         return (1);
1644                         }
1645                 }
1646         }
1647         return (0);
1648 }
1649
1650 /* Search for a nodelist entry on a specific list */
1651 struct lpfc_nodelist *
1652 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1653 {
1654         struct lpfc_nodelist *ndlp, *next_ndlp;
1655         uint32_t data1;
1656
1657         if (order & NLP_SEARCH_UNMAPPED) {
1658                 list_for_each_entry_safe(ndlp, next_ndlp,
1659                                          &phba->fc_nlpunmap_list, nlp_listp) {
1660                         if (lpfc_matchdid(phba, ndlp, did)) {
1661                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1662                                          ((uint32_t) ndlp->nlp_xri << 16) |
1663                                          ((uint32_t) ndlp->nlp_type << 8) |
1664                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1665                                 /* FIND node DID unmapped */
1666                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1667                                                 "%d:0929 FIND node DID unmapped"
1668                                                 " Data: x%p x%x x%x x%x\n",
1669                                                 phba->brd_no,
1670                                                 ndlp, ndlp->nlp_DID,
1671                                                 ndlp->nlp_flag, data1);
1672                                 return (ndlp);
1673                         }
1674                 }
1675         }
1676
1677         if (order & NLP_SEARCH_MAPPED) {
1678                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1679                                         nlp_listp) {
1680                         if (lpfc_matchdid(phba, ndlp, did)) {
1681
1682                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1683                                          ((uint32_t) ndlp->nlp_xri << 16) |
1684                                          ((uint32_t) ndlp->nlp_type << 8) |
1685                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1686                                 /* FIND node DID mapped */
1687                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1688                                                 "%d:0930 FIND node DID mapped "
1689                                                 "Data: x%p x%x x%x x%x\n",
1690                                                 phba->brd_no,
1691                                                 ndlp, ndlp->nlp_DID,
1692                                                 ndlp->nlp_flag, data1);
1693                                 return (ndlp);
1694                         }
1695                 }
1696         }
1697
1698         if (order & NLP_SEARCH_PLOGI) {
1699                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1700                                         nlp_listp) {
1701                         if (lpfc_matchdid(phba, ndlp, did)) {
1702
1703                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1704                                          ((uint32_t) ndlp->nlp_xri << 16) |
1705                                          ((uint32_t) ndlp->nlp_type << 8) |
1706                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1707                                 /* LOG change to PLOGI */
1708                                 /* FIND node DID plogi */
1709                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1710                                                 "%d:0908 FIND node DID plogi "
1711                                                 "Data: x%p x%x x%x x%x\n",
1712                                                 phba->brd_no,
1713                                                 ndlp, ndlp->nlp_DID,
1714                                                 ndlp->nlp_flag, data1);
1715                                 return (ndlp);
1716                         }
1717                 }
1718         }
1719
1720         if (order & NLP_SEARCH_ADISC) {
1721                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1722                                         nlp_listp) {
1723                         if (lpfc_matchdid(phba, ndlp, did)) {
1724
1725                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1726                                          ((uint32_t) ndlp->nlp_xri << 16) |
1727                                          ((uint32_t) ndlp->nlp_type << 8) |
1728                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1729                                 /* LOG change to ADISC */
1730                                 /* FIND node DID adisc */
1731                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1732                                                 "%d:0931 FIND node DID adisc "
1733                                                 "Data: x%p x%x x%x x%x\n",
1734                                                 phba->brd_no,
1735                                                 ndlp, ndlp->nlp_DID,
1736                                                 ndlp->nlp_flag, data1);
1737                                 return (ndlp);
1738                         }
1739                 }
1740         }
1741
1742         if (order & NLP_SEARCH_REGLOGIN) {
1743                 list_for_each_entry_safe(ndlp, next_ndlp,
1744                                          &phba->fc_reglogin_list, nlp_listp) {
1745                         if (lpfc_matchdid(phba, ndlp, did)) {
1746
1747                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1748                                          ((uint32_t) ndlp->nlp_xri << 16) |
1749                                          ((uint32_t) ndlp->nlp_type << 8) |
1750                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1751                                 /* LOG change to REGLOGIN */
1752                                 /* FIND node DID reglogin */
1753                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1754                                                 "%d:0931 FIND node DID reglogin"
1755                                                 " Data: x%p x%x x%x x%x\n",
1756                                                 phba->brd_no,
1757                                                 ndlp, ndlp->nlp_DID,
1758                                                 ndlp->nlp_flag, data1);
1759                                 return (ndlp);
1760                         }
1761                 }
1762         }
1763
1764         if (order & NLP_SEARCH_PRLI) {
1765                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1766                                         nlp_listp) {
1767                         if (lpfc_matchdid(phba, ndlp, did)) {
1768
1769                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1770                                          ((uint32_t) ndlp->nlp_xri << 16) |
1771                                          ((uint32_t) ndlp->nlp_type << 8) |
1772                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1773                                 /* LOG change to PRLI */
1774                                 /* FIND node DID prli */
1775                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1776                                                 "%d:0931 FIND node DID prli "
1777                                                 "Data: x%p x%x x%x x%x\n",
1778                                                 phba->brd_no,
1779                                                 ndlp, ndlp->nlp_DID,
1780                                                 ndlp->nlp_flag, data1);
1781                                 return (ndlp);
1782                         }
1783                 }
1784         }
1785
1786         if (order & NLP_SEARCH_NPR) {
1787                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1788                                         nlp_listp) {
1789                         if (lpfc_matchdid(phba, ndlp, did)) {
1790
1791                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1792                                          ((uint32_t) ndlp->nlp_xri << 16) |
1793                                          ((uint32_t) ndlp->nlp_type << 8) |
1794                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1795                                 /* LOG change to NPR */
1796                                 /* FIND node DID npr */
1797                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1798                                                 "%d:0931 FIND node DID npr "
1799                                                 "Data: x%p x%x x%x x%x\n",
1800                                                 phba->brd_no,
1801                                                 ndlp, ndlp->nlp_DID,
1802                                                 ndlp->nlp_flag, data1);
1803                                 return (ndlp);
1804                         }
1805                 }
1806         }
1807
1808         if (order & NLP_SEARCH_UNUSED) {
1809                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1810                                         nlp_listp) {
1811                         if (lpfc_matchdid(phba, ndlp, did)) {
1812
1813                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1814                                          ((uint32_t) ndlp->nlp_xri << 16) |
1815                                          ((uint32_t) ndlp->nlp_type << 8) |
1816                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1817                                 /* LOG change to UNUSED */
1818                                 /* FIND node DID unused */
1819                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1820                                                 "%d:0931 FIND node DID unused "
1821                                                 "Data: x%p x%x x%x x%x\n",
1822                                                 phba->brd_no,
1823                                                 ndlp, ndlp->nlp_DID,
1824                                                 ndlp->nlp_flag, data1);
1825                                 return (ndlp);
1826                         }
1827                 }
1828         }
1829
1830         /* FIND node did <did> NOT FOUND */
1831         lpfc_printf_log(phba,
1832                         KERN_INFO,
1833                         LOG_NODE,
1834                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1835                         phba->brd_no, did, order);
1836
1837         /* no match found */
1838         return NULL;
1839 }
1840
1841 struct lpfc_nodelist *
1842 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1843 {
1844         struct lpfc_nodelist *ndlp;
1845         uint32_t flg;
1846
1847         if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1848                 if ((phba->hba_state == LPFC_HBA_READY) &&
1849                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1850                         return NULL;
1851                 ndlp = (struct lpfc_nodelist *)
1852                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1853                 if (!ndlp)
1854                         return NULL;
1855                 lpfc_nlp_init(phba, ndlp, did);
1856                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1857                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1858                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1859                 return ndlp;
1860         }
1861         if ((phba->hba_state == LPFC_HBA_READY) &&
1862             (phba->fc_flag & FC_RSCN_MODE)) {
1863                 if (lpfc_rscn_payload_check(phba, did)) {
1864                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1865                 }
1866                 else {
1867                         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1868                         ndlp = NULL;
1869                 }
1870         }
1871         else {
1872                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1873                 if ((flg == NLP_ADISC_LIST) ||
1874                 (flg == NLP_PLOGI_LIST)) {
1875                         return NULL;
1876                 }
1877                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1878                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1879                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1880         }
1881         return ndlp;
1882 }
1883
1884 /* Build a list of nodes to discover based on the loopmap */
1885 void
1886 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1887 {
1888         int j;
1889         uint32_t alpa, index;
1890
1891         if (phba->hba_state <= LPFC_LINK_DOWN) {
1892                 return;
1893         }
1894         if (phba->fc_topology != TOPOLOGY_LOOP) {
1895                 return;
1896         }
1897
1898         /* Check for loop map present or not */
1899         if (phba->alpa_map[0]) {
1900                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1901                         alpa = phba->alpa_map[j];
1902
1903                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1904                                 continue;
1905                         }
1906                         lpfc_setup_disc_node(phba, alpa);
1907                 }
1908         } else {
1909                 /* No alpamap, so try all alpa's */
1910                 for (j = 0; j < FC_MAXLOOP; j++) {
1911                         /* If cfg_scan_down is set, start from highest
1912                          * ALPA (0xef) to lowest (0x1).
1913                          */
1914                         if (phba->cfg_scan_down)
1915                                 index = j;
1916                         else
1917                                 index = FC_MAXLOOP - j - 1;
1918                         alpa = lpfcAlpaArray[index];
1919                         if ((phba->fc_myDID & 0xff) == alpa) {
1920                                 continue;
1921                         }
1922
1923                         lpfc_setup_disc_node(phba, alpa);
1924                 }
1925         }
1926         return;
1927 }
1928
1929 /* Start Link up / RSCN discovery on NPR list */
1930 void
1931 lpfc_disc_start(struct lpfc_hba * phba)
1932 {
1933         struct lpfc_sli *psli;
1934         LPFC_MBOXQ_t *mbox;
1935         struct lpfc_nodelist *ndlp, *next_ndlp;
1936         uint32_t did_changed, num_sent;
1937         uint32_t clear_la_pending;
1938         int rc;
1939
1940         psli = &phba->sli;
1941
1942         if (phba->hba_state <= LPFC_LINK_DOWN) {
1943                 return;
1944         }
1945         if (phba->hba_state == LPFC_CLEAR_LA)
1946                 clear_la_pending = 1;
1947         else
1948                 clear_la_pending = 0;
1949
1950         if (phba->hba_state < LPFC_HBA_READY) {
1951                 phba->hba_state = LPFC_DISC_AUTH;
1952         }
1953         lpfc_set_disctmo(phba);
1954
1955         if (phba->fc_prevDID == phba->fc_myDID) {
1956                 did_changed = 0;
1957         } else {
1958                 did_changed = 1;
1959         }
1960         phba->fc_prevDID = phba->fc_myDID;
1961         phba->num_disc_nodes = 0;
1962
1963         /* Start Discovery state <hba_state> */
1964         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1965                         "%d:0202 Start Discovery hba state x%x "
1966                         "Data: x%x x%x x%x\n",
1967                         phba->brd_no, phba->hba_state, phba->fc_flag,
1968                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1969
1970         /* If our did changed, we MUST do PLOGI */
1971         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1972                                 nlp_listp) {
1973                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1974                         if (did_changed) {
1975                                 spin_lock_irq(phba->host->host_lock);
1976                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1977                                 spin_unlock_irq(phba->host->host_lock);
1978                         }
1979                 }
1980         }
1981
1982         /* First do ADISCs - if any */
1983         num_sent = lpfc_els_disc_adisc(phba);
1984
1985         if (num_sent)
1986                 return;
1987
1988         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1989                 /* If we get here, there is nothing to ADISC */
1990                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1991                         phba->hba_state = LPFC_CLEAR_LA;
1992                         lpfc_clear_la(phba, mbox);
1993                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1994                         rc = lpfc_sli_issue_mbox(phba, mbox,
1995                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1996                         if (rc == MBX_NOT_FINISHED) {
1997                                 mempool_free( mbox, phba->mbox_mem_pool);
1998                                 lpfc_disc_flush_list(phba);
1999                                 psli->ring[(psli->ip_ring)].flag &=
2000                                         ~LPFC_STOP_IOCB_EVENT;
2001                                 psli->ring[(psli->fcp_ring)].flag &=
2002                                         ~LPFC_STOP_IOCB_EVENT;
2003                                 psli->ring[(psli->next_ring)].flag &=
2004                                         ~LPFC_STOP_IOCB_EVENT;
2005                                 phba->hba_state = LPFC_HBA_READY;
2006                         }
2007                 }
2008         } else {
2009                 /* Next do PLOGIs - if any */
2010                 num_sent = lpfc_els_disc_plogi(phba);
2011
2012                 if (num_sent)
2013                         return;
2014
2015                 if (phba->fc_flag & FC_RSCN_MODE) {
2016                         /* Check to see if more RSCNs came in while we
2017                          * were processing this one.
2018                          */
2019                         if ((phba->fc_rscn_id_cnt == 0) &&
2020                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2021                                 spin_lock_irq(phba->host->host_lock);
2022                                 phba->fc_flag &= ~FC_RSCN_MODE;
2023                                 spin_unlock_irq(phba->host->host_lock);
2024                         }
2025                         else
2026                                 lpfc_els_handle_rscn(phba);
2027                 }
2028         }
2029         return;
2030 }
2031
2032 /*
2033  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2034  *  ring the match the sppecified nodelist.
2035  */
2036 static void
2037 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2038 {
2039         struct lpfc_sli *psli;
2040         IOCB_t     *icmd;
2041         struct lpfc_iocbq    *iocb, *next_iocb;
2042         struct lpfc_sli_ring *pring;
2043         struct lpfc_dmabuf   *mp;
2044
2045         psli = &phba->sli;
2046         pring = &psli->ring[LPFC_ELS_RING];
2047
2048         /* Error matching iocb on txq or txcmplq
2049          * First check the txq.
2050          */
2051         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2052                 if (iocb->context1 != ndlp) {
2053                         continue;
2054                 }
2055                 icmd = &iocb->iocb;
2056                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2057                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2058
2059                         list_del(&iocb->list);
2060                         pring->txq_cnt--;
2061                         lpfc_els_free_iocb(phba, iocb);
2062                 }
2063         }
2064
2065         /* Next check the txcmplq */
2066         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2067                 if (iocb->context1 != ndlp) {
2068                         continue;
2069                 }
2070                 icmd = &iocb->iocb;
2071                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2072                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2073
2074                         iocb->iocb_cmpl = NULL;
2075                         /* context2 = cmd, context2->next = rsp, context3 =
2076                            bpl */
2077                         if (iocb->context2) {
2078                                 /* Free the response IOCB before handling the
2079                                    command. */
2080
2081                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2082                                 mp = list_get_first(&mp->list,
2083                                                     struct lpfc_dmabuf,
2084                                                     list);
2085                                 if (mp) {
2086                                         /* Delay before releasing rsp buffer to
2087                                          * give UNREG mbox a chance to take
2088                                          * effect.
2089                                          */
2090                                         list_add(&mp->list,
2091                                                 &phba->freebufList);
2092                                 }
2093                                 lpfc_mbuf_free(phba,
2094                                                ((struct lpfc_dmabuf *)
2095                                                 iocb->context2)->virt,
2096                                                ((struct lpfc_dmabuf *)
2097                                                 iocb->context2)->phys);
2098                                 kfree(iocb->context2);
2099                         }
2100
2101                         if (iocb->context3) {
2102                                 lpfc_mbuf_free(phba,
2103                                                ((struct lpfc_dmabuf *)
2104                                                 iocb->context3)->virt,
2105                                                ((struct lpfc_dmabuf *)
2106                                                 iocb->context3)->phys);
2107                                 kfree(iocb->context3);
2108                         }
2109                 }
2110         }
2111
2112         return;
2113 }
2114
2115 void
2116 lpfc_disc_flush_list(struct lpfc_hba * phba)
2117 {
2118         struct lpfc_nodelist *ndlp, *next_ndlp;
2119
2120         if (phba->fc_plogi_cnt) {
2121                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2122                                         nlp_listp) {
2123                         lpfc_free_tx(phba, ndlp);
2124                         lpfc_nlp_remove(phba, ndlp);
2125                 }
2126         }
2127         if (phba->fc_adisc_cnt) {
2128                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2129                                         nlp_listp) {
2130                         lpfc_free_tx(phba, ndlp);
2131                         lpfc_nlp_remove(phba, ndlp);
2132                 }
2133         }
2134         return;
2135 }
2136
2137 /*****************************************************************************/
2138 /*
2139  * NAME:     lpfc_disc_timeout
2140  *
2141  * FUNCTION: Fibre Channel driver discovery timeout routine.
2142  *
2143  * EXECUTION ENVIRONMENT: interrupt only
2144  *
2145  * CALLED FROM:
2146  *      Timer function
2147  *
2148  * RETURNS:
2149  *      none
2150  */
2151 /*****************************************************************************/
2152 void
2153 lpfc_disc_timeout(unsigned long ptr)
2154 {
2155         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2156         unsigned long flags = 0;
2157
2158         if (unlikely(!phba))
2159                 return;
2160
2161         spin_lock_irqsave(phba->host->host_lock, flags);
2162         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2163                 phba->work_hba_events |= WORKER_DISC_TMO;
2164                 if (phba->work_wait)
2165                         wake_up(phba->work_wait);
2166         }
2167         spin_unlock_irqrestore(phba->host->host_lock, flags);
2168         return;
2169 }
2170
2171 static void
2172 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2173 {
2174         struct lpfc_sli *psli;
2175         struct lpfc_nodelist *ndlp;
2176         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2177         int rc, clrlaerr = 0;
2178
2179         if (unlikely(!phba))
2180                 return;
2181
2182         if (!(phba->fc_flag & FC_DISC_TMO))
2183                 return;
2184
2185         psli = &phba->sli;
2186
2187         spin_lock_irq(phba->host->host_lock);
2188         phba->fc_flag &= ~FC_DISC_TMO;
2189         spin_unlock_irq(phba->host->host_lock);
2190
2191         switch (phba->hba_state) {
2192
2193         case LPFC_LOCAL_CFG_LINK:
2194         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2195                 /* FAN timeout */
2196                 lpfc_printf_log(phba,
2197                                  KERN_WARNING,
2198                                  LOG_DISCOVERY,
2199                                  "%d:0221 FAN timeout\n",
2200                                  phba->brd_no);
2201
2202                 /* Forget about FAN, Start discovery by sending a FLOGI
2203                  * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2204                  * cmpl
2205                  */
2206                 phba->hba_state = LPFC_FLOGI;
2207                 lpfc_set_disctmo(phba);
2208                 lpfc_initial_flogi(phba);
2209                 break;
2210
2211         case LPFC_FLOGI:
2212         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2213                 /* Initial FLOGI timeout */
2214                 lpfc_printf_log(phba,
2215                                  KERN_ERR,
2216                                  LOG_DISCOVERY,
2217                                  "%d:0222 Initial FLOGI timeout\n",
2218                                  phba->brd_no);
2219
2220                 /* Assume no Fabric and go on with discovery.
2221                  * Check for outstanding ELS FLOGI to abort.
2222                  */
2223
2224                 /* FLOGI failed, so just use loop map to make discovery list */
2225                 lpfc_disc_list_loopmap(phba);
2226
2227                 /* Start discovery */
2228                 lpfc_disc_start(phba);
2229                 break;
2230
2231         case LPFC_FABRIC_CFG_LINK:
2232         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2233            NameServer login */
2234                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2235                                 "%d:0223 Timeout while waiting for NameServer "
2236                                 "login\n", phba->brd_no);
2237
2238                 /* Next look for NameServer ndlp */
2239                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2240                 if (ndlp)
2241                         lpfc_nlp_remove(phba, ndlp);
2242                 /* Start discovery */
2243                 lpfc_disc_start(phba);
2244                 break;
2245
2246         case LPFC_NS_QRY:
2247         /* Check for wait for NameServer Rsp timeout */
2248                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2249                                 "%d:0224 NameServer Query timeout "
2250                                 "Data: x%x x%x\n",
2251                                 phba->brd_no,
2252                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2253
2254                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2255                                                                 NameServer_DID);
2256                 if (ndlp) {
2257                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2258                                 /* Try it one more time */
2259                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2260                                 if (rc == 0)
2261                                         break;
2262                         }
2263                         phba->fc_ns_retry = 0;
2264                 }
2265
2266                 /* Nothing to authenticate, so CLEAR_LA right now */
2267                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2268                 if (!clearlambox) {
2269                         clrlaerr = 1;
2270                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2271                                         "%d:0226 Device Discovery "
2272                                         "completion error\n",
2273                                         phba->brd_no);
2274                         phba->hba_state = LPFC_HBA_ERROR;
2275                         break;
2276                 }
2277
2278                 phba->hba_state = LPFC_CLEAR_LA;
2279                 lpfc_clear_la(phba, clearlambox);
2280                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2281                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2282                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2283                 if (rc == MBX_NOT_FINISHED) {
2284                         mempool_free(clearlambox, phba->mbox_mem_pool);
2285                         clrlaerr = 1;
2286                         break;
2287                 }
2288
2289                 /* Setup and issue mailbox INITIALIZE LINK command */
2290                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2291                 if (!initlinkmbox) {
2292                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2293                                         "%d:0226 Device Discovery "
2294                                         "completion error\n",
2295                                         phba->brd_no);
2296                         phba->hba_state = LPFC_HBA_ERROR;
2297                         break;
2298                 }
2299
2300                 lpfc_linkdown(phba);
2301                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2302                                phba->cfg_link_speed);
2303                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2304                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2305                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2306                 if (rc == MBX_NOT_FINISHED)
2307                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2308
2309                 break;
2310
2311         case LPFC_DISC_AUTH:
2312         /* Node Authentication timeout */
2313                 lpfc_printf_log(phba,
2314                                  KERN_ERR,
2315                                  LOG_DISCOVERY,
2316                                  "%d:0227 Node Authentication timeout\n",
2317                                  phba->brd_no);
2318                 lpfc_disc_flush_list(phba);
2319                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2320                 if (!clearlambox) {
2321                         clrlaerr = 1;
2322                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2323                                         "%d:0226 Device Discovery "
2324                                         "completion error\n",
2325                                         phba->brd_no);
2326                         phba->hba_state = LPFC_HBA_ERROR;
2327                         break;
2328                 }
2329                 phba->hba_state = LPFC_CLEAR_LA;
2330                 lpfc_clear_la(phba, clearlambox);
2331                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2332                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2333                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2334                 if (rc == MBX_NOT_FINISHED) {
2335                         mempool_free(clearlambox, phba->mbox_mem_pool);
2336                         clrlaerr = 1;
2337                 }
2338                 break;
2339
2340         case LPFC_CLEAR_LA:
2341         /* CLEAR LA timeout */
2342                 lpfc_printf_log(phba,
2343                                  KERN_ERR,
2344                                  LOG_DISCOVERY,
2345                                  "%d:0228 CLEAR LA timeout\n",
2346                                  phba->brd_no);
2347                 clrlaerr = 1;
2348                 break;
2349
2350         case LPFC_HBA_READY:
2351                 if (phba->fc_flag & FC_RSCN_MODE) {
2352                         lpfc_printf_log(phba,
2353                                         KERN_ERR,
2354                                         LOG_DISCOVERY,
2355                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2356                                         phba->brd_no,
2357                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2358
2359                         /* Cleanup any outstanding ELS commands */
2360                         lpfc_els_flush_cmd(phba);
2361
2362                         lpfc_els_flush_rscn(phba);
2363                         lpfc_disc_flush_list(phba);
2364                 }
2365                 break;
2366         }
2367
2368         if (clrlaerr) {
2369                 lpfc_disc_flush_list(phba);
2370                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2371                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2372                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2373                 phba->hba_state = LPFC_HBA_READY;
2374         }
2375
2376         return;
2377 }
2378
2379 static void
2380 lpfc_nodev_timeout(unsigned long ptr)
2381 {
2382         struct lpfc_hba *phba;
2383         struct lpfc_nodelist *ndlp;
2384         unsigned long iflag;
2385         struct lpfc_work_evt  *evtp;
2386
2387         ndlp = (struct lpfc_nodelist *)ptr;
2388         phba = ndlp->nlp_phba;
2389         evtp = &ndlp->nodev_timeout_evt;
2390         spin_lock_irqsave(phba->host->host_lock, iflag);
2391
2392         if (!list_empty(&evtp->evt_listp)) {
2393                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2394                 return;
2395         }
2396         evtp->evt_arg1  = ndlp;
2397         evtp->evt       = LPFC_EVT_NODEV_TMO;
2398         list_add_tail(&evtp->evt_listp, &phba->work_list);
2399         if (phba->work_wait)
2400                 wake_up(phba->work_wait);
2401
2402         spin_unlock_irqrestore(phba->host->host_lock, iflag);
2403         return;
2404 }
2405
2406
2407 /*
2408  * This routine handles processing a NameServer REG_LOGIN mailbox
2409  * command upon completion. It is setup in the LPFC_MBOXQ
2410  * as the completion routine when the command is
2411  * handed off to the SLI layer.
2412  */
2413 void
2414 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2415 {
2416         struct lpfc_sli *psli;
2417         MAILBOX_t *mb;
2418         struct lpfc_dmabuf *mp;
2419         struct lpfc_nodelist *ndlp;
2420
2421         psli = &phba->sli;
2422         mb = &pmb->mb;
2423
2424         ndlp = (struct lpfc_nodelist *) pmb->context2;
2425         mp = (struct lpfc_dmabuf *) (pmb->context1);
2426
2427         pmb->context1 = NULL;
2428
2429         ndlp->nlp_rpi = mb->un.varWords[0];
2430         ndlp->nlp_type |= NLP_FABRIC;
2431         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2432         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2433
2434         /* Start issuing Fabric-Device Management Interface (FDMI)
2435          * command to 0xfffffa (FDMI well known port)
2436          */
2437         if (phba->cfg_fdmi_on == 1) {
2438                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2439         } else {
2440                 /*
2441                  * Delay issuing FDMI command if fdmi-on=2
2442                  * (supporting RPA/hostnmae)
2443                  */
2444                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2445         }
2446
2447         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2448         kfree(mp);
2449         mempool_free( pmb, phba->mbox_mem_pool);
2450
2451         return;
2452 }
2453
2454 /*
2455  * This routine looks up the ndlp  lists
2456  * for the given RPI. If rpi found
2457  * it return the node list pointer
2458  * else return NULL.
2459  */
2460 struct lpfc_nodelist *
2461 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2462 {
2463         struct lpfc_nodelist *ndlp;
2464         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2465                                     &phba->fc_nlpmap_list,
2466                                     &phba->fc_plogi_list,
2467                                     &phba->fc_adisc_list,
2468                                     &phba->fc_reglogin_list};
2469         int i;
2470
2471         for (i = 0; i < ARRAY_SIZE(lists); i++ )
2472                 list_for_each_entry(ndlp, lists[i], nlp_listp)
2473                         if (ndlp->nlp_rpi == rpi)
2474                                 return (ndlp);
2475
2476         return NULL;
2477 }
2478
2479 void
2480 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2481                  uint32_t did)
2482 {
2483         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2484         INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2485         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2486         init_timer(&ndlp->nlp_tmofunc);
2487         ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2488         ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2489         init_timer(&ndlp->nlp_delayfunc);
2490         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2491         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2492         ndlp->nlp_DID = did;
2493         ndlp->nlp_phba = phba;
2494         ndlp->nlp_sid = NLP_NO_SID;
2495         return;
2496 }