Merge by hand (conflicts in scsi_lib.c)
[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
1021         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1022         if (!rport) {
1023                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1024                            "Warning: fc_remote_port_add failed\n");
1025                 return;
1026         }
1027
1028         /* initialize static port data */
1029         rport->maxframe_size = ndlp->nlp_maxframe;
1030         rport->supported_classes = ndlp->nlp_class_sup;
1031         if ((rport->scsi_target_id != -1) &&
1032                 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1033                 ndlp->nlp_sid = rport->scsi_target_id;
1034         }
1035         rdata = rport->dd_data;
1036         rdata->pnode = ndlp;
1037
1038         if (ndlp->nlp_type & NLP_FCP_TARGET)
1039                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1040         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1041                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1042
1043
1044         if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
1045                 fc_remote_port_rolechg(rport, rport_ids.roles);
1046
1047
1048         return;
1049 }
1050
1051 static void
1052 lpfc_unregister_remote_port(struct lpfc_hba * phba,
1053                             struct lpfc_nodelist * ndlp)
1054 {
1055         struct fc_rport *rport = ndlp->rport;
1056         struct lpfc_rport_data *rdata = rport->dd_data;
1057
1058         ndlp->rport = NULL;
1059         rdata->pnode = NULL;
1060         fc_remote_port_delete(rport);
1061
1062         return;
1063 }
1064
1065 int
1066 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1067 {
1068         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1069         struct lpfc_sli      *psli;
1070
1071         psli = &phba->sli;
1072         /* Sanity check to ensure we are not moving to / from the same list */
1073         if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1074                 if (list != NLP_NO_LIST)
1075                         return(0);
1076         }
1077
1078         switch(nlp->nlp_flag & NLP_LIST_MASK) {
1079         case NLP_NO_LIST: /* Not on any list */
1080                 break;
1081         case NLP_UNUSED_LIST:
1082                 phba->fc_unused_cnt--;
1083                 list_del(&nlp->nlp_listp);
1084                 break;
1085         case NLP_PLOGI_LIST:
1086                 phba->fc_plogi_cnt--;
1087                 list_del(&nlp->nlp_listp);
1088                 break;
1089         case NLP_ADISC_LIST:
1090                 phba->fc_adisc_cnt--;
1091                 list_del(&nlp->nlp_listp);
1092                 break;
1093         case NLP_REGLOGIN_LIST:
1094                 phba->fc_reglogin_cnt--;
1095                 list_del(&nlp->nlp_listp);
1096                 break;
1097         case NLP_PRLI_LIST:
1098                 phba->fc_prli_cnt--;
1099                 list_del(&nlp->nlp_listp);
1100                 break;
1101         case NLP_UNMAPPED_LIST:
1102                 phba->fc_unmap_cnt--;
1103                 list_del(&nlp->nlp_listp);
1104                 spin_lock_irq(phba->host->host_lock);
1105                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1106                 nlp->nlp_type &= ~NLP_FC_NODE;
1107                 spin_unlock_irq(phba->host->host_lock);
1108                 phba->nport_event_cnt++;
1109                 if (nlp->rport)
1110                         rport_del = unmapped;
1111                 break;
1112         case NLP_MAPPED_LIST:
1113                 phba->fc_map_cnt--;
1114                 list_del(&nlp->nlp_listp);
1115                 phba->nport_event_cnt++;
1116                 if (nlp->rport)
1117                         rport_del = mapped;
1118                 break;
1119         case NLP_NPR_LIST:
1120                 phba->fc_npr_cnt--;
1121                 list_del(&nlp->nlp_listp);
1122                 /* Stop delay tmo if taking node off NPR list */
1123                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1124                    (list != NLP_NPR_LIST)) {
1125                         spin_lock_irq(phba->host->host_lock);
1126                         nlp->nlp_flag &= ~NLP_DELAY_TMO;
1127                         spin_unlock_irq(phba->host->host_lock);
1128                         del_timer_sync(&nlp->nlp_delayfunc);
1129                         if (!list_empty(&nlp->els_retry_evt.evt_listp))
1130                                 list_del_init(&nlp->els_retry_evt.evt_listp);
1131                 }
1132                 break;
1133         }
1134
1135         spin_lock_irq(phba->host->host_lock);
1136         nlp->nlp_flag &= ~NLP_LIST_MASK;
1137         spin_unlock_irq(phba->host->host_lock);
1138
1139         /* Add NPort <did> to <num> list */
1140         lpfc_printf_log(phba,
1141                         KERN_INFO,
1142                         LOG_NODE,
1143                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1144                         phba->brd_no,
1145                         nlp->nlp_DID, list, nlp->nlp_flag);
1146
1147         switch(list) {
1148         case NLP_NO_LIST: /* No list, just remove it */
1149                 lpfc_nlp_remove(phba, nlp);
1150                 /* as node removed - stop further transport calls */
1151                 rport_del = none;
1152                 break;
1153         case NLP_UNUSED_LIST:
1154                 spin_lock_irq(phba->host->host_lock);
1155                 nlp->nlp_flag |= list;
1156                 spin_unlock_irq(phba->host->host_lock);
1157                 /* Put it at the end of the unused list */
1158                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1159                 phba->fc_unused_cnt++;
1160                 break;
1161         case NLP_PLOGI_LIST:
1162                 spin_lock_irq(phba->host->host_lock);
1163                 nlp->nlp_flag |= list;
1164                 spin_unlock_irq(phba->host->host_lock);
1165                 /* Put it at the end of the plogi list */
1166                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1167                 phba->fc_plogi_cnt++;
1168                 break;
1169         case NLP_ADISC_LIST:
1170                 spin_lock_irq(phba->host->host_lock);
1171                 nlp->nlp_flag |= list;
1172                 spin_unlock_irq(phba->host->host_lock);
1173                 /* Put it at the end of the adisc list */
1174                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1175                 phba->fc_adisc_cnt++;
1176                 break;
1177         case NLP_REGLOGIN_LIST:
1178                 spin_lock_irq(phba->host->host_lock);
1179                 nlp->nlp_flag |= list;
1180                 spin_unlock_irq(phba->host->host_lock);
1181                 /* Put it at the end of the reglogin list */
1182                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1183                 phba->fc_reglogin_cnt++;
1184                 break;
1185         case NLP_PRLI_LIST:
1186                 spin_lock_irq(phba->host->host_lock);
1187                 nlp->nlp_flag |= list;
1188                 spin_unlock_irq(phba->host->host_lock);
1189                 /* Put it at the end of the prli list */
1190                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1191                 phba->fc_prli_cnt++;
1192                 break;
1193         case NLP_UNMAPPED_LIST:
1194                 rport_add = unmapped;
1195                 /* ensure all vestiges of "mapped" significance are gone */
1196                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1197                 spin_lock_irq(phba->host->host_lock);
1198                 nlp->nlp_flag |= list;
1199                 spin_unlock_irq(phba->host->host_lock);
1200                 /* Put it at the end of the unmap list */
1201                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1202                 phba->fc_unmap_cnt++;
1203                 phba->nport_event_cnt++;
1204                 /* stop nodev tmo if running */
1205                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1206                         spin_lock_irq(phba->host->host_lock);
1207                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1208                         spin_unlock_irq(phba->host->host_lock);
1209                         del_timer_sync(&nlp->nlp_tmofunc);
1210                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1211                                 list_del_init(&nlp->nodev_timeout_evt.
1212                                                 evt_listp);
1213
1214                 }
1215                 nlp->nlp_type |= NLP_FC_NODE;
1216                 break;
1217         case NLP_MAPPED_LIST:
1218                 rport_add = mapped;
1219                 spin_lock_irq(phba->host->host_lock);
1220                 nlp->nlp_flag |= list;
1221                 spin_unlock_irq(phba->host->host_lock);
1222                 /* Put it at the end of the map list */
1223                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1224                 phba->fc_map_cnt++;
1225                 phba->nport_event_cnt++;
1226                 /* stop nodev tmo if running */
1227                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1228                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1229                         del_timer_sync(&nlp->nlp_tmofunc);
1230                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1231                                 list_del_init(&nlp->nodev_timeout_evt.
1232                                                 evt_listp);
1233
1234                 }
1235                 break;
1236         case NLP_NPR_LIST:
1237                 spin_lock_irq(phba->host->host_lock);
1238                 nlp->nlp_flag |= list;
1239                 spin_unlock_irq(phba->host->host_lock);
1240                 /* Put it at the end of the npr list */
1241                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1242                 phba->fc_npr_cnt++;
1243
1244                 /*
1245                  * Sanity check for Fabric entity.
1246                  * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1247                  */
1248                 if (nlp->nlp_type & NLP_FABRIC) {
1249                         mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1250                 }
1251                 else {
1252                         mod_timer(&nlp->nlp_tmofunc,
1253                             jiffies + HZ * phba->cfg_nodev_tmo);
1254                 }
1255                 spin_lock_irq(phba->host->host_lock);
1256                 nlp->nlp_flag |= NLP_NODEV_TMO;
1257                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1258                 spin_unlock_irq(phba->host->host_lock);
1259                 break;
1260         case NLP_JUST_DQ:
1261                 break;
1262         }
1263
1264         /*
1265          * We make all the calls into the transport after we have
1266          * moved the node between lists. This so that we don't
1267          * release the lock while in-between lists.
1268          */
1269
1270         /* Don't upcall midlayer if we're unloading */
1271         if (!(phba->fc_flag & FC_UNLOADING)) {
1272                 /*
1273                  * We revalidate the rport pointer as the "add" function
1274                  * may have removed the remote port.
1275                  */
1276                 if ((rport_del != none) && nlp->rport)
1277                         lpfc_unregister_remote_port(phba, nlp);
1278
1279                 if (rport_add != none) {
1280                         /*
1281                          * Tell the fc transport about the port, if we haven't
1282                          * already. If we have, and it's a scsi entity, be
1283                          * sure to unblock any attached scsi devices
1284                          */
1285                         if (!nlp->rport)
1286                                 lpfc_register_remote_port(phba, nlp);
1287
1288                         /*
1289                          * if we added to Mapped list, but the remote port
1290                          * registration failed or assigned a target id outside
1291                          * our presentable range - move the node to the
1292                          * Unmapped List
1293                          */
1294                         if ((rport_add == mapped) &&
1295                             ((!nlp->rport) ||
1296                              (nlp->rport->scsi_target_id == -1) ||
1297                              (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1298                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1299                                 spin_lock_irq(phba->host->host_lock);
1300                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1301                                 spin_unlock_irq(phba->host->host_lock);
1302                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1303                         }
1304                 }
1305         }
1306         return (0);
1307 }
1308
1309 /*
1310  * Start / ReStart rescue timer for Discovery / RSCN handling
1311  */
1312 void
1313 lpfc_set_disctmo(struct lpfc_hba * phba)
1314 {
1315         uint32_t tmo;
1316
1317         tmo = ((phba->fc_ratov * 2) + 1);
1318
1319         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1320         spin_lock_irq(phba->host->host_lock);
1321         phba->fc_flag |= FC_DISC_TMO;
1322         spin_unlock_irq(phba->host->host_lock);
1323
1324         /* Start Discovery Timer state <hba_state> */
1325         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1326                         "%d:0247 Start Discovery Timer state x%x "
1327                         "Data: x%x x%lx x%x x%x\n",
1328                         phba->brd_no,
1329                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1330                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1331
1332         return;
1333 }
1334
1335 /*
1336  * Cancel rescue timer for Discovery / RSCN handling
1337  */
1338 int
1339 lpfc_can_disctmo(struct lpfc_hba * phba)
1340 {
1341         /* Turn off discovery timer if its running */
1342         if (phba->fc_flag & FC_DISC_TMO) {
1343                 spin_lock_irq(phba->host->host_lock);
1344                 phba->fc_flag &= ~FC_DISC_TMO;
1345                 spin_unlock_irq(phba->host->host_lock);
1346                 del_timer_sync(&phba->fc_disctmo);
1347                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1348         }
1349
1350         /* Cancel Discovery Timer state <hba_state> */
1351         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1352                         "%d:0248 Cancel Discovery Timer state x%x "
1353                         "Data: x%x x%x x%x\n",
1354                         phba->brd_no, phba->hba_state, phba->fc_flag,
1355                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1356
1357         return (0);
1358 }
1359
1360 /*
1361  * Check specified ring for outstanding IOCB on the SLI queue
1362  * Return true if iocb matches the specified nport
1363  */
1364 int
1365 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1366                     struct lpfc_sli_ring * pring,
1367                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1368 {
1369         struct lpfc_sli *psli;
1370         IOCB_t *icmd;
1371
1372         psli = &phba->sli;
1373         icmd = &iocb->iocb;
1374         if (pring->ringno == LPFC_ELS_RING) {
1375                 switch (icmd->ulpCommand) {
1376                 case CMD_GEN_REQUEST64_CR:
1377                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1378                                 return (1);
1379                 case CMD_ELS_REQUEST64_CR:
1380                 case CMD_XMIT_ELS_RSP64_CX:
1381                         if (iocb->context1 == (uint8_t *) ndlp)
1382                                 return (1);
1383                 }
1384         } else if (pring->ringno == psli->ip_ring) {
1385
1386         } else if (pring->ringno == psli->fcp_ring) {
1387                 /* Skip match check if waiting to relogin to FCP target */
1388                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1389                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1390                         return (0);
1391                 }
1392                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1393                         return (1);
1394                 }
1395         } else if (pring->ringno == psli->next_ring) {
1396
1397         }
1398         return (0);
1399 }
1400
1401 /*
1402  * Free resources / clean up outstanding I/Os
1403  * associated with nlp_rpi in the LPFC_NODELIST entry.
1404  */
1405 static int
1406 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1407 {
1408         struct lpfc_sli *psli;
1409         struct lpfc_sli_ring *pring;
1410         struct lpfc_iocbq *iocb, *next_iocb;
1411         IOCB_t *icmd;
1412         uint32_t rpi, i;
1413
1414         /*
1415          * Everything that matches on txcmplq will be returned
1416          * by firmware with a no rpi error.
1417          */
1418         psli = &phba->sli;
1419         rpi = ndlp->nlp_rpi;
1420         if (rpi) {
1421                 /* Now process each ring */
1422                 for (i = 0; i < psli->num_rings; i++) {
1423                         pring = &psli->ring[i];
1424
1425                         spin_lock_irq(phba->host->host_lock);
1426                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1427                                                 list) {
1428                                 /*
1429                                  * Check to see if iocb matches the nport we are
1430                                  * looking for
1431                                  */
1432                                 if ((lpfc_check_sli_ndlp
1433                                      (phba, pring, iocb, ndlp))) {
1434                                         /* It matches, so deque and call compl
1435                                            with an error */
1436                                         list_del(&iocb->list);
1437                                         pring->txq_cnt--;
1438                                         if (iocb->iocb_cmpl) {
1439                                                 icmd = &iocb->iocb;
1440                                                 icmd->ulpStatus =
1441                                                     IOSTAT_LOCAL_REJECT;
1442                                                 icmd->un.ulpWord[4] =
1443                                                     IOERR_SLI_ABORTED;
1444                                                 spin_unlock_irq(phba->host->
1445                                                                 host_lock);
1446                                                 (iocb->iocb_cmpl) (phba,
1447                                                                    iocb, iocb);
1448                                                 spin_lock_irq(phba->host->
1449                                                               host_lock);
1450                                         } else
1451                                                 lpfc_sli_release_iocbq(phba,
1452                                                                        iocb);
1453                                 }
1454                         }
1455                         spin_unlock_irq(phba->host->host_lock);
1456
1457                 }
1458         }
1459         return (0);
1460 }
1461
1462 /*
1463  * Free rpi associated with LPFC_NODELIST entry.
1464  * This routine is called from lpfc_freenode(), when we are removing
1465  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1466  * LOGO that completes successfully, and we are waiting to PLOGI back
1467  * to the remote NPort. In addition, it is called after we receive
1468  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1469  * we are waiting to PLOGI back to the remote NPort.
1470  */
1471 int
1472 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1473 {
1474         LPFC_MBOXQ_t *mbox;
1475         int rc;
1476
1477         if (ndlp->nlp_rpi) {
1478                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1479                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1480                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1481                         rc = lpfc_sli_issue_mbox
1482                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1483                         if (rc == MBX_NOT_FINISHED)
1484                                 mempool_free( mbox, phba->mbox_mem_pool);
1485                 }
1486                 lpfc_no_rpi(phba, ndlp);
1487                 ndlp->nlp_rpi = 0;
1488                 return 1;
1489         }
1490         return 0;
1491 }
1492
1493 /*
1494  * Free resources associated with LPFC_NODELIST entry
1495  * so it can be freed.
1496  */
1497 static int
1498 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1499 {
1500         LPFC_MBOXQ_t       *mb;
1501         LPFC_MBOXQ_t       *nextmb;
1502         struct lpfc_dmabuf *mp;
1503
1504         /* Cleanup node for NPort <nlp_DID> */
1505         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1506                         "%d:0900 Cleanup node for NPort x%x "
1507                         "Data: x%x x%x x%x\n",
1508                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1509                         ndlp->nlp_state, ndlp->nlp_rpi);
1510
1511         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1512
1513         /*
1514          * if unloading the driver - just leave the remote port in place.
1515          * The driver unload will force the attached devices to detach
1516          * and flush cache's w/o generating flush errors.
1517          */
1518         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1519                 lpfc_unregister_remote_port(phba, ndlp);
1520                 ndlp->nlp_sid = NLP_NO_SID;
1521         }
1522
1523         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1524         if ((mb = phba->sli.mbox_active)) {
1525                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1526                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1527                         mb->context2 = NULL;
1528                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1529                 }
1530         }
1531         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1532                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1533                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1534                         mp = (struct lpfc_dmabuf *) (mb->context1);
1535                         if (mp) {
1536                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1537                                 kfree(mp);
1538                         }
1539                         list_del(&mb->list);
1540                         mempool_free(mb, phba->mbox_mem_pool);
1541                 }
1542         }
1543
1544         lpfc_els_abort(phba,ndlp,0);
1545         spin_lock_irq(phba->host->host_lock);
1546         ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1547         spin_unlock_irq(phba->host->host_lock);
1548         del_timer_sync(&ndlp->nlp_tmofunc);
1549
1550         del_timer_sync(&ndlp->nlp_delayfunc);
1551
1552         if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1553                 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1554         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1555                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1556
1557         lpfc_unreg_rpi(phba, ndlp);
1558
1559         return (0);
1560 }
1561
1562 /*
1563  * Check to see if we can free the nlp back to the freelist.
1564  * If we are in the middle of using the nlp in the discovery state
1565  * machine, defer the free till we reach the end of the state machine.
1566  */
1567 int
1568 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1569 {
1570         if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1571                 spin_lock_irq(phba->host->host_lock);
1572                 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1573                 spin_unlock_irq(phba->host->host_lock);
1574                 del_timer_sync(&ndlp->nlp_tmofunc);
1575                 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1576                         list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1577
1578         }
1579
1580
1581         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1582                 spin_lock_irq(phba->host->host_lock);
1583                 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1584                 spin_unlock_irq(phba->host->host_lock);
1585                 del_timer_sync(&ndlp->nlp_delayfunc);
1586                 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1587                         list_del_init(&ndlp->els_retry_evt.evt_listp);
1588         }
1589
1590         if (ndlp->nlp_disc_refcnt) {
1591                 spin_lock_irq(phba->host->host_lock);
1592                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1593                 spin_unlock_irq(phba->host->host_lock);
1594         }
1595         else {
1596                 lpfc_freenode(phba, ndlp);
1597                 mempool_free( ndlp, phba->nlp_mem_pool);
1598         }
1599         return(0);
1600 }
1601
1602 static int
1603 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1604 {
1605         D_ID mydid;
1606         D_ID ndlpdid;
1607         D_ID matchdid;
1608
1609         if (did == Bcast_DID)
1610                 return (0);
1611
1612         if (ndlp->nlp_DID == 0) {
1613                 return (0);
1614         }
1615
1616         /* First check for Direct match */
1617         if (ndlp->nlp_DID == did)
1618                 return (1);
1619
1620         /* Next check for area/domain identically equals 0 match */
1621         mydid.un.word = phba->fc_myDID;
1622         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1623                 return (0);
1624         }
1625
1626         matchdid.un.word = did;
1627         ndlpdid.un.word = ndlp->nlp_DID;
1628         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1629                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1630                     (mydid.un.b.area == matchdid.un.b.area)) {
1631                         if ((ndlpdid.un.b.domain == 0) &&
1632                             (ndlpdid.un.b.area == 0)) {
1633                                 if (ndlpdid.un.b.id)
1634                                         return (1);
1635                         }
1636                         return (0);
1637                 }
1638
1639                 matchdid.un.word = ndlp->nlp_DID;
1640                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1641                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1642                         if ((matchdid.un.b.domain == 0) &&
1643                             (matchdid.un.b.area == 0)) {
1644                                 if (matchdid.un.b.id)
1645                                         return (1);
1646                         }
1647                 }
1648         }
1649         return (0);
1650 }
1651
1652 /* Search for a nodelist entry on a specific list */
1653 struct lpfc_nodelist *
1654 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1655 {
1656         struct lpfc_nodelist *ndlp, *next_ndlp;
1657         uint32_t data1;
1658
1659         if (order & NLP_SEARCH_UNMAPPED) {
1660                 list_for_each_entry_safe(ndlp, next_ndlp,
1661                                          &phba->fc_nlpunmap_list, nlp_listp) {
1662                         if (lpfc_matchdid(phba, ndlp, did)) {
1663                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1664                                          ((uint32_t) ndlp->nlp_xri << 16) |
1665                                          ((uint32_t) ndlp->nlp_type << 8) |
1666                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1667                                 /* FIND node DID unmapped */
1668                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1669                                                 "%d:0929 FIND node DID unmapped"
1670                                                 " Data: x%p x%x x%x x%x\n",
1671                                                 phba->brd_no,
1672                                                 ndlp, ndlp->nlp_DID,
1673                                                 ndlp->nlp_flag, data1);
1674                                 return (ndlp);
1675                         }
1676                 }
1677         }
1678
1679         if (order & NLP_SEARCH_MAPPED) {
1680                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1681                                         nlp_listp) {
1682                         if (lpfc_matchdid(phba, ndlp, did)) {
1683
1684                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1685                                          ((uint32_t) ndlp->nlp_xri << 16) |
1686                                          ((uint32_t) ndlp->nlp_type << 8) |
1687                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1688                                 /* FIND node DID mapped */
1689                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1690                                                 "%d:0930 FIND node DID mapped "
1691                                                 "Data: x%p x%x x%x x%x\n",
1692                                                 phba->brd_no,
1693                                                 ndlp, ndlp->nlp_DID,
1694                                                 ndlp->nlp_flag, data1);
1695                                 return (ndlp);
1696                         }
1697                 }
1698         }
1699
1700         if (order & NLP_SEARCH_PLOGI) {
1701                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1702                                         nlp_listp) {
1703                         if (lpfc_matchdid(phba, ndlp, did)) {
1704
1705                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1706                                          ((uint32_t) ndlp->nlp_xri << 16) |
1707                                          ((uint32_t) ndlp->nlp_type << 8) |
1708                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1709                                 /* LOG change to PLOGI */
1710                                 /* FIND node DID plogi */
1711                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1712                                                 "%d:0908 FIND node DID plogi "
1713                                                 "Data: x%p x%x x%x x%x\n",
1714                                                 phba->brd_no,
1715                                                 ndlp, ndlp->nlp_DID,
1716                                                 ndlp->nlp_flag, data1);
1717                                 return (ndlp);
1718                         }
1719                 }
1720         }
1721
1722         if (order & NLP_SEARCH_ADISC) {
1723                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1724                                         nlp_listp) {
1725                         if (lpfc_matchdid(phba, ndlp, did)) {
1726
1727                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1728                                          ((uint32_t) ndlp->nlp_xri << 16) |
1729                                          ((uint32_t) ndlp->nlp_type << 8) |
1730                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1731                                 /* LOG change to ADISC */
1732                                 /* FIND node DID adisc */
1733                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1734                                                 "%d:0931 FIND node DID adisc "
1735                                                 "Data: x%p x%x x%x x%x\n",
1736                                                 phba->brd_no,
1737                                                 ndlp, ndlp->nlp_DID,
1738                                                 ndlp->nlp_flag, data1);
1739                                 return (ndlp);
1740                         }
1741                 }
1742         }
1743
1744         if (order & NLP_SEARCH_REGLOGIN) {
1745                 list_for_each_entry_safe(ndlp, next_ndlp,
1746                                          &phba->fc_reglogin_list, nlp_listp) {
1747                         if (lpfc_matchdid(phba, ndlp, did)) {
1748
1749                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1750                                          ((uint32_t) ndlp->nlp_xri << 16) |
1751                                          ((uint32_t) ndlp->nlp_type << 8) |
1752                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1753                                 /* LOG change to REGLOGIN */
1754                                 /* FIND node DID reglogin */
1755                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1756                                                 "%d:0931 FIND node DID reglogin"
1757                                                 " Data: x%p x%x x%x x%x\n",
1758                                                 phba->brd_no,
1759                                                 ndlp, ndlp->nlp_DID,
1760                                                 ndlp->nlp_flag, data1);
1761                                 return (ndlp);
1762                         }
1763                 }
1764         }
1765
1766         if (order & NLP_SEARCH_PRLI) {
1767                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1768                                         nlp_listp) {
1769                         if (lpfc_matchdid(phba, ndlp, did)) {
1770
1771                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1772                                          ((uint32_t) ndlp->nlp_xri << 16) |
1773                                          ((uint32_t) ndlp->nlp_type << 8) |
1774                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1775                                 /* LOG change to PRLI */
1776                                 /* FIND node DID prli */
1777                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1778                                                 "%d:0931 FIND node DID prli "
1779                                                 "Data: x%p x%x x%x x%x\n",
1780                                                 phba->brd_no,
1781                                                 ndlp, ndlp->nlp_DID,
1782                                                 ndlp->nlp_flag, data1);
1783                                 return (ndlp);
1784                         }
1785                 }
1786         }
1787
1788         if (order & NLP_SEARCH_NPR) {
1789                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1790                                         nlp_listp) {
1791                         if (lpfc_matchdid(phba, ndlp, did)) {
1792
1793                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1794                                          ((uint32_t) ndlp->nlp_xri << 16) |
1795                                          ((uint32_t) ndlp->nlp_type << 8) |
1796                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1797                                 /* LOG change to NPR */
1798                                 /* FIND node DID npr */
1799                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1800                                                 "%d:0931 FIND node DID npr "
1801                                                 "Data: x%p x%x x%x x%x\n",
1802                                                 phba->brd_no,
1803                                                 ndlp, ndlp->nlp_DID,
1804                                                 ndlp->nlp_flag, data1);
1805                                 return (ndlp);
1806                         }
1807                 }
1808         }
1809
1810         if (order & NLP_SEARCH_UNUSED) {
1811                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1812                                         nlp_listp) {
1813                         if (lpfc_matchdid(phba, ndlp, did)) {
1814
1815                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1816                                          ((uint32_t) ndlp->nlp_xri << 16) |
1817                                          ((uint32_t) ndlp->nlp_type << 8) |
1818                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1819                                 /* LOG change to UNUSED */
1820                                 /* FIND node DID unused */
1821                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1822                                                 "%d:0931 FIND node DID unused "
1823                                                 "Data: x%p x%x x%x x%x\n",
1824                                                 phba->brd_no,
1825                                                 ndlp, ndlp->nlp_DID,
1826                                                 ndlp->nlp_flag, data1);
1827                                 return (ndlp);
1828                         }
1829                 }
1830         }
1831
1832         /* FIND node did <did> NOT FOUND */
1833         lpfc_printf_log(phba,
1834                         KERN_INFO,
1835                         LOG_NODE,
1836                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1837                         phba->brd_no, did, order);
1838
1839         /* no match found */
1840         return NULL;
1841 }
1842
1843 struct lpfc_nodelist *
1844 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1845 {
1846         struct lpfc_nodelist *ndlp;
1847         uint32_t flg;
1848
1849         if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1850                 if ((phba->hba_state == LPFC_HBA_READY) &&
1851                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1852                         return NULL;
1853                 ndlp = (struct lpfc_nodelist *)
1854                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1855                 if (!ndlp)
1856                         return NULL;
1857                 lpfc_nlp_init(phba, ndlp, did);
1858                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1859                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1860                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1861                 return ndlp;
1862         }
1863         if ((phba->hba_state == LPFC_HBA_READY) &&
1864             (phba->fc_flag & FC_RSCN_MODE)) {
1865                 if (lpfc_rscn_payload_check(phba, did)) {
1866                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1867                 }
1868                 else {
1869                         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1870                         ndlp = NULL;
1871                 }
1872         }
1873         else {
1874                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1875                 if ((flg == NLP_ADISC_LIST) ||
1876                 (flg == NLP_PLOGI_LIST)) {
1877                         return NULL;
1878                 }
1879                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1880                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1881                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1882         }
1883         return ndlp;
1884 }
1885
1886 /* Build a list of nodes to discover based on the loopmap */
1887 void
1888 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1889 {
1890         int j;
1891         uint32_t alpa, index;
1892
1893         if (phba->hba_state <= LPFC_LINK_DOWN) {
1894                 return;
1895         }
1896         if (phba->fc_topology != TOPOLOGY_LOOP) {
1897                 return;
1898         }
1899
1900         /* Check for loop map present or not */
1901         if (phba->alpa_map[0]) {
1902                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1903                         alpa = phba->alpa_map[j];
1904
1905                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1906                                 continue;
1907                         }
1908                         lpfc_setup_disc_node(phba, alpa);
1909                 }
1910         } else {
1911                 /* No alpamap, so try all alpa's */
1912                 for (j = 0; j < FC_MAXLOOP; j++) {
1913                         /* If cfg_scan_down is set, start from highest
1914                          * ALPA (0xef) to lowest (0x1).
1915                          */
1916                         if (phba->cfg_scan_down)
1917                                 index = j;
1918                         else
1919                                 index = FC_MAXLOOP - j - 1;
1920                         alpa = lpfcAlpaArray[index];
1921                         if ((phba->fc_myDID & 0xff) == alpa) {
1922                                 continue;
1923                         }
1924
1925                         lpfc_setup_disc_node(phba, alpa);
1926                 }
1927         }
1928         return;
1929 }
1930
1931 /* Start Link up / RSCN discovery on NPR list */
1932 void
1933 lpfc_disc_start(struct lpfc_hba * phba)
1934 {
1935         struct lpfc_sli *psli;
1936         LPFC_MBOXQ_t *mbox;
1937         struct lpfc_nodelist *ndlp, *next_ndlp;
1938         uint32_t did_changed, num_sent;
1939         uint32_t clear_la_pending;
1940         int rc;
1941
1942         psli = &phba->sli;
1943
1944         if (phba->hba_state <= LPFC_LINK_DOWN) {
1945                 return;
1946         }
1947         if (phba->hba_state == LPFC_CLEAR_LA)
1948                 clear_la_pending = 1;
1949         else
1950                 clear_la_pending = 0;
1951
1952         if (phba->hba_state < LPFC_HBA_READY) {
1953                 phba->hba_state = LPFC_DISC_AUTH;
1954         }
1955         lpfc_set_disctmo(phba);
1956
1957         if (phba->fc_prevDID == phba->fc_myDID) {
1958                 did_changed = 0;
1959         } else {
1960                 did_changed = 1;
1961         }
1962         phba->fc_prevDID = phba->fc_myDID;
1963         phba->num_disc_nodes = 0;
1964
1965         /* Start Discovery state <hba_state> */
1966         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1967                         "%d:0202 Start Discovery hba state x%x "
1968                         "Data: x%x x%x x%x\n",
1969                         phba->brd_no, phba->hba_state, phba->fc_flag,
1970                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1971
1972         /* If our did changed, we MUST do PLOGI */
1973         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1974                                 nlp_listp) {
1975                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1976                         if (did_changed) {
1977                                 spin_lock_irq(phba->host->host_lock);
1978                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1979                                 spin_unlock_irq(phba->host->host_lock);
1980                         }
1981                 }
1982         }
1983
1984         /* First do ADISCs - if any */
1985         num_sent = lpfc_els_disc_adisc(phba);
1986
1987         if (num_sent)
1988                 return;
1989
1990         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1991                 /* If we get here, there is nothing to ADISC */
1992                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1993                         phba->hba_state = LPFC_CLEAR_LA;
1994                         lpfc_clear_la(phba, mbox);
1995                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1996                         rc = lpfc_sli_issue_mbox(phba, mbox,
1997                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1998                         if (rc == MBX_NOT_FINISHED) {
1999                                 mempool_free( mbox, phba->mbox_mem_pool);
2000                                 lpfc_disc_flush_list(phba);
2001                                 psli->ring[(psli->ip_ring)].flag &=
2002                                         ~LPFC_STOP_IOCB_EVENT;
2003                                 psli->ring[(psli->fcp_ring)].flag &=
2004                                         ~LPFC_STOP_IOCB_EVENT;
2005                                 psli->ring[(psli->next_ring)].flag &=
2006                                         ~LPFC_STOP_IOCB_EVENT;
2007                                 phba->hba_state = LPFC_HBA_READY;
2008                         }
2009                 }
2010         } else {
2011                 /* Next do PLOGIs - if any */
2012                 num_sent = lpfc_els_disc_plogi(phba);
2013
2014                 if (num_sent)
2015                         return;
2016
2017                 if (phba->fc_flag & FC_RSCN_MODE) {
2018                         /* Check to see if more RSCNs came in while we
2019                          * were processing this one.
2020                          */
2021                         if ((phba->fc_rscn_id_cnt == 0) &&
2022                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2023                                 spin_lock_irq(phba->host->host_lock);
2024                                 phba->fc_flag &= ~FC_RSCN_MODE;
2025                                 spin_unlock_irq(phba->host->host_lock);
2026                         }
2027                         else
2028                                 lpfc_els_handle_rscn(phba);
2029                 }
2030         }
2031         return;
2032 }
2033
2034 /*
2035  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2036  *  ring the match the sppecified nodelist.
2037  */
2038 static void
2039 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2040 {
2041         struct lpfc_sli *psli;
2042         IOCB_t     *icmd;
2043         struct lpfc_iocbq    *iocb, *next_iocb;
2044         struct lpfc_sli_ring *pring;
2045         struct lpfc_dmabuf   *mp;
2046
2047         psli = &phba->sli;
2048         pring = &psli->ring[LPFC_ELS_RING];
2049
2050         /* Error matching iocb on txq or txcmplq
2051          * First check the txq.
2052          */
2053         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2054                 if (iocb->context1 != ndlp) {
2055                         continue;
2056                 }
2057                 icmd = &iocb->iocb;
2058                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2059                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2060
2061                         list_del(&iocb->list);
2062                         pring->txq_cnt--;
2063                         lpfc_els_free_iocb(phba, iocb);
2064                 }
2065         }
2066
2067         /* Next check the txcmplq */
2068         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2069                 if (iocb->context1 != ndlp) {
2070                         continue;
2071                 }
2072                 icmd = &iocb->iocb;
2073                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2074                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2075
2076                         iocb->iocb_cmpl = NULL;
2077                         /* context2 = cmd, context2->next = rsp, context3 =
2078                            bpl */
2079                         if (iocb->context2) {
2080                                 /* Free the response IOCB before handling the
2081                                    command. */
2082
2083                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2084                                 mp = list_get_first(&mp->list,
2085                                                     struct lpfc_dmabuf,
2086                                                     list);
2087                                 if (mp) {
2088                                         /* Delay before releasing rsp buffer to
2089                                          * give UNREG mbox a chance to take
2090                                          * effect.
2091                                          */
2092                                         list_add(&mp->list,
2093                                                 &phba->freebufList);
2094                                 }
2095                                 lpfc_mbuf_free(phba,
2096                                                ((struct lpfc_dmabuf *)
2097                                                 iocb->context2)->virt,
2098                                                ((struct lpfc_dmabuf *)
2099                                                 iocb->context2)->phys);
2100                                 kfree(iocb->context2);
2101                         }
2102
2103                         if (iocb->context3) {
2104                                 lpfc_mbuf_free(phba,
2105                                                ((struct lpfc_dmabuf *)
2106                                                 iocb->context3)->virt,
2107                                                ((struct lpfc_dmabuf *)
2108                                                 iocb->context3)->phys);
2109                                 kfree(iocb->context3);
2110                         }
2111                 }
2112         }
2113
2114         return;
2115 }
2116
2117 void
2118 lpfc_disc_flush_list(struct lpfc_hba * phba)
2119 {
2120         struct lpfc_nodelist *ndlp, *next_ndlp;
2121
2122         if (phba->fc_plogi_cnt) {
2123                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2124                                         nlp_listp) {
2125                         lpfc_free_tx(phba, ndlp);
2126                         lpfc_nlp_remove(phba, ndlp);
2127                 }
2128         }
2129         if (phba->fc_adisc_cnt) {
2130                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2131                                         nlp_listp) {
2132                         lpfc_free_tx(phba, ndlp);
2133                         lpfc_nlp_remove(phba, ndlp);
2134                 }
2135         }
2136         return;
2137 }
2138
2139 /*****************************************************************************/
2140 /*
2141  * NAME:     lpfc_disc_timeout
2142  *
2143  * FUNCTION: Fibre Channel driver discovery timeout routine.
2144  *
2145  * EXECUTION ENVIRONMENT: interrupt only
2146  *
2147  * CALLED FROM:
2148  *      Timer function
2149  *
2150  * RETURNS:
2151  *      none
2152  */
2153 /*****************************************************************************/
2154 void
2155 lpfc_disc_timeout(unsigned long ptr)
2156 {
2157         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2158         unsigned long flags = 0;
2159
2160         if (unlikely(!phba))
2161                 return;
2162
2163         spin_lock_irqsave(phba->host->host_lock, flags);
2164         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2165                 phba->work_hba_events |= WORKER_DISC_TMO;
2166                 if (phba->work_wait)
2167                         wake_up(phba->work_wait);
2168         }
2169         spin_unlock_irqrestore(phba->host->host_lock, flags);
2170         return;
2171 }
2172
2173 static void
2174 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2175 {
2176         struct lpfc_sli *psli;
2177         struct lpfc_nodelist *ndlp;
2178         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2179         int rc, clrlaerr = 0;
2180
2181         if (unlikely(!phba))
2182                 return;
2183
2184         if (!(phba->fc_flag & FC_DISC_TMO))
2185                 return;
2186
2187         psli = &phba->sli;
2188
2189         spin_lock_irq(phba->host->host_lock);
2190         phba->fc_flag &= ~FC_DISC_TMO;
2191         spin_unlock_irq(phba->host->host_lock);
2192
2193         switch (phba->hba_state) {
2194
2195         case LPFC_LOCAL_CFG_LINK:
2196         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2197                 /* FAN timeout */
2198                 lpfc_printf_log(phba,
2199                                  KERN_WARNING,
2200                                  LOG_DISCOVERY,
2201                                  "%d:0221 FAN timeout\n",
2202                                  phba->brd_no);
2203
2204                 /* Forget about FAN, Start discovery by sending a FLOGI
2205                  * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2206                  * cmpl
2207                  */
2208                 phba->hba_state = LPFC_FLOGI;
2209                 lpfc_set_disctmo(phba);
2210                 lpfc_initial_flogi(phba);
2211                 break;
2212
2213         case LPFC_FLOGI:
2214         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2215                 /* Initial FLOGI timeout */
2216                 lpfc_printf_log(phba,
2217                                  KERN_ERR,
2218                                  LOG_DISCOVERY,
2219                                  "%d:0222 Initial FLOGI timeout\n",
2220                                  phba->brd_no);
2221
2222                 /* Assume no Fabric and go on with discovery.
2223                  * Check for outstanding ELS FLOGI to abort.
2224                  */
2225
2226                 /* FLOGI failed, so just use loop map to make discovery list */
2227                 lpfc_disc_list_loopmap(phba);
2228
2229                 /* Start discovery */
2230                 lpfc_disc_start(phba);
2231                 break;
2232
2233         case LPFC_FABRIC_CFG_LINK:
2234         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2235            NameServer login */
2236                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2237                                 "%d:0223 Timeout while waiting for NameServer "
2238                                 "login\n", phba->brd_no);
2239
2240                 /* Next look for NameServer ndlp */
2241                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2242                 if (ndlp)
2243                         lpfc_nlp_remove(phba, ndlp);
2244                 /* Start discovery */
2245                 lpfc_disc_start(phba);
2246                 break;
2247
2248         case LPFC_NS_QRY:
2249         /* Check for wait for NameServer Rsp timeout */
2250                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2251                                 "%d:0224 NameServer Query timeout "
2252                                 "Data: x%x x%x\n",
2253                                 phba->brd_no,
2254                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2255
2256                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2257                                                                 NameServer_DID);
2258                 if (ndlp) {
2259                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2260                                 /* Try it one more time */
2261                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2262                                 if (rc == 0)
2263                                         break;
2264                         }
2265                         phba->fc_ns_retry = 0;
2266                 }
2267
2268                 /* Nothing to authenticate, so CLEAR_LA right now */
2269                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2270                 if (!clearlambox) {
2271                         clrlaerr = 1;
2272                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2273                                         "%d:0226 Device Discovery "
2274                                         "completion error\n",
2275                                         phba->brd_no);
2276                         phba->hba_state = LPFC_HBA_ERROR;
2277                         break;
2278                 }
2279
2280                 phba->hba_state = LPFC_CLEAR_LA;
2281                 lpfc_clear_la(phba, clearlambox);
2282                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2283                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2284                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2285                 if (rc == MBX_NOT_FINISHED) {
2286                         mempool_free(clearlambox, phba->mbox_mem_pool);
2287                         clrlaerr = 1;
2288                         break;
2289                 }
2290
2291                 /* Setup and issue mailbox INITIALIZE LINK command */
2292                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2293                 if (!initlinkmbox) {
2294                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2295                                         "%d:0226 Device Discovery "
2296                                         "completion error\n",
2297                                         phba->brd_no);
2298                         phba->hba_state = LPFC_HBA_ERROR;
2299                         break;
2300                 }
2301
2302                 lpfc_linkdown(phba);
2303                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2304                                phba->cfg_link_speed);
2305                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2306                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2307                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2308                 if (rc == MBX_NOT_FINISHED)
2309                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2310
2311                 break;
2312
2313         case LPFC_DISC_AUTH:
2314         /* Node Authentication timeout */
2315                 lpfc_printf_log(phba,
2316                                  KERN_ERR,
2317                                  LOG_DISCOVERY,
2318                                  "%d:0227 Node Authentication timeout\n",
2319                                  phba->brd_no);
2320                 lpfc_disc_flush_list(phba);
2321                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2322                 if (!clearlambox) {
2323                         clrlaerr = 1;
2324                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2325                                         "%d:0226 Device Discovery "
2326                                         "completion error\n",
2327                                         phba->brd_no);
2328                         phba->hba_state = LPFC_HBA_ERROR;
2329                         break;
2330                 }
2331                 phba->hba_state = LPFC_CLEAR_LA;
2332                 lpfc_clear_la(phba, clearlambox);
2333                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2334                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2335                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2336                 if (rc == MBX_NOT_FINISHED) {
2337                         mempool_free(clearlambox, phba->mbox_mem_pool);
2338                         clrlaerr = 1;
2339                 }
2340                 break;
2341
2342         case LPFC_CLEAR_LA:
2343         /* CLEAR LA timeout */
2344                 lpfc_printf_log(phba,
2345                                  KERN_ERR,
2346                                  LOG_DISCOVERY,
2347                                  "%d:0228 CLEAR LA timeout\n",
2348                                  phba->brd_no);
2349                 clrlaerr = 1;
2350                 break;
2351
2352         case LPFC_HBA_READY:
2353                 if (phba->fc_flag & FC_RSCN_MODE) {
2354                         lpfc_printf_log(phba,
2355                                         KERN_ERR,
2356                                         LOG_DISCOVERY,
2357                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2358                                         phba->brd_no,
2359                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2360
2361                         /* Cleanup any outstanding ELS commands */
2362                         lpfc_els_flush_cmd(phba);
2363
2364                         lpfc_els_flush_rscn(phba);
2365                         lpfc_disc_flush_list(phba);
2366                 }
2367                 break;
2368         }
2369
2370         if (clrlaerr) {
2371                 lpfc_disc_flush_list(phba);
2372                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2373                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2374                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2375                 phba->hba_state = LPFC_HBA_READY;
2376         }
2377
2378         return;
2379 }
2380
2381 static void
2382 lpfc_nodev_timeout(unsigned long ptr)
2383 {
2384         struct lpfc_hba *phba;
2385         struct lpfc_nodelist *ndlp;
2386         unsigned long iflag;
2387         struct lpfc_work_evt  *evtp;
2388
2389         ndlp = (struct lpfc_nodelist *)ptr;
2390         phba = ndlp->nlp_phba;
2391         evtp = &ndlp->nodev_timeout_evt;
2392         spin_lock_irqsave(phba->host->host_lock, iflag);
2393
2394         if (!list_empty(&evtp->evt_listp)) {
2395                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2396                 return;
2397         }
2398         evtp->evt_arg1  = ndlp;
2399         evtp->evt       = LPFC_EVT_NODEV_TMO;
2400         list_add_tail(&evtp->evt_listp, &phba->work_list);
2401         if (phba->work_wait)
2402                 wake_up(phba->work_wait);
2403
2404         spin_unlock_irqrestore(phba->host->host_lock, iflag);
2405         return;
2406 }
2407
2408
2409 /*
2410  * This routine handles processing a NameServer REG_LOGIN mailbox
2411  * command upon completion. It is setup in the LPFC_MBOXQ
2412  * as the completion routine when the command is
2413  * handed off to the SLI layer.
2414  */
2415 void
2416 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2417 {
2418         struct lpfc_sli *psli;
2419         MAILBOX_t *mb;
2420         struct lpfc_dmabuf *mp;
2421         struct lpfc_nodelist *ndlp;
2422
2423         psli = &phba->sli;
2424         mb = &pmb->mb;
2425
2426         ndlp = (struct lpfc_nodelist *) pmb->context2;
2427         mp = (struct lpfc_dmabuf *) (pmb->context1);
2428
2429         pmb->context1 = NULL;
2430
2431         ndlp->nlp_rpi = mb->un.varWords[0];
2432         ndlp->nlp_type |= NLP_FABRIC;
2433         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
2434         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
2435
2436         /* Start issuing Fabric-Device Management Interface (FDMI)
2437          * command to 0xfffffa (FDMI well known port)
2438          */
2439         if (phba->cfg_fdmi_on == 1) {
2440                 lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
2441         } else {
2442                 /*
2443                  * Delay issuing FDMI command if fdmi-on=2
2444                  * (supporting RPA/hostnmae)
2445                  */
2446                 mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
2447         }
2448
2449         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2450         kfree(mp);
2451         mempool_free( pmb, phba->mbox_mem_pool);
2452
2453         return;
2454 }
2455
2456 /*
2457  * This routine looks up the ndlp  lists
2458  * for the given RPI. If rpi found
2459  * it return the node list pointer
2460  * else return NULL.
2461  */
2462 struct lpfc_nodelist *
2463 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2464 {
2465         struct lpfc_nodelist *ndlp;
2466         struct list_head * lists[]={&phba->fc_nlpunmap_list,
2467                                     &phba->fc_nlpmap_list,
2468                                     &phba->fc_plogi_list,
2469                                     &phba->fc_adisc_list,
2470                                     &phba->fc_reglogin_list};
2471         int i;
2472
2473         for (i = 0; i < ARRAY_SIZE(lists); i++ )
2474                 list_for_each_entry(ndlp, lists[i], nlp_listp)
2475                         if (ndlp->nlp_rpi == rpi)
2476                                 return (ndlp);
2477
2478         return NULL;
2479 }
2480
2481 void
2482 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2483                  uint32_t did)
2484 {
2485         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2486         INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2487         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2488         init_timer(&ndlp->nlp_tmofunc);
2489         ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2490         ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2491         init_timer(&ndlp->nlp_delayfunc);
2492         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2493         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2494         ndlp->nlp_DID = did;
2495         ndlp->nlp_phba = phba;
2496         ndlp->nlp_sid = NLP_NO_SID;
2497         return;
2498 }