[SCSI] lpfc driver 8.0.30 : convert to use of int_to_scsilun()
[linux-2.6.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2004-2005 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         if (ndlp->nlp_rpi != 0)
894                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
895         ndlp->nlp_rpi = mb->un.varWords[0];
896         lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
897         ndlp->nlp_type |= NLP_FABRIC;
898         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
899         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
900
901         if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
902                 /* This NPort has been assigned an NPort_ID by the fabric as a
903                  * result of the completed fabric login.  Issue a State Change
904                  * Registration (SCR) ELS request to the fabric controller
905                  * (SCR_DID) so that this NPort gets RSCN events from the
906                  * fabric.
907                  */
908                 lpfc_issue_els_scr(phba, SCR_DID, 0);
909
910                 /* Allocate a new node instance.  If the pool is empty, just
911                  * start the discovery process and skip the Nameserver login
912                  * process.  This is attempted again later on.  Otherwise, issue
913                  * a Port Login (PLOGI) to the NameServer
914                  */
915                 if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL))
916                     == 0) {
917                         lpfc_disc_start(phba);
918                 } else {
919                         lpfc_nlp_init(phba, ndlp, NameServer_DID);
920                         ndlp->nlp_type |= NLP_FABRIC;
921                         ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
922                         lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
923                         lpfc_issue_els_plogi(phba, ndlp, 0);
924                         if (phba->cfg_fdmi_on) {
925                                 if ((ndlp_fdmi = mempool_alloc(
926                                                        phba->nlp_mem_pool,
927                                                        GFP_KERNEL))) {
928                                         lpfc_nlp_init(phba, ndlp_fdmi,
929                                                 FDMI_DID);
930                                         ndlp_fdmi->nlp_type |= NLP_FABRIC;
931                                         ndlp_fdmi->nlp_state =
932                                             NLP_STE_PLOGI_ISSUE;
933                                         lpfc_issue_els_plogi(phba, ndlp_fdmi,
934                                                              0);
935                                 }
936                         }
937                 }
938         }
939
940         lpfc_mbuf_free(phba, mp->virt, mp->phys);
941         kfree(mp);
942         mempool_free( pmb, phba->mbox_mem_pool);
943
944         return;
945 }
946
947 /*
948  * This routine handles processing a NameServer REG_LOGIN mailbox
949  * command upon completion. It is setup in the LPFC_MBOXQ
950  * as the completion routine when the command is
951  * handed off to the SLI layer.
952  */
953 void
954 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
955 {
956         struct lpfc_sli *psli;
957         MAILBOX_t *mb;
958         struct lpfc_dmabuf *mp;
959         struct lpfc_nodelist *ndlp;
960
961         psli = &phba->sli;
962         mb = &pmb->mb;
963
964         ndlp = (struct lpfc_nodelist *) pmb->context2;
965         mp = (struct lpfc_dmabuf *) (pmb->context1);
966
967         if (mb->mbxStatus) {
968                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
969                 kfree(mp);
970                 mempool_free( pmb, phba->mbox_mem_pool);
971                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
972
973                 /* RegLogin failed, so just use loop map to make discovery
974                    list */
975                 lpfc_disc_list_loopmap(phba);
976
977                 /* Start discovery */
978                 lpfc_disc_start(phba);
979                 return;
980         }
981
982         pmb->context1 = NULL;
983
984         if (ndlp->nlp_rpi != 0)
985                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
986         ndlp->nlp_rpi = mb->un.varWords[0];
987         lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
988         ndlp->nlp_type |= NLP_FABRIC;
989         ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
990         lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
991
992         if (phba->hba_state < LPFC_HBA_READY) {
993                 /* Link up discovery requires Fabrib registration. */
994                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
995                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
996                 lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
997         }
998
999         phba->fc_ns_retry = 0;
1000         /* Good status, issue CT Request to NameServer */
1001         if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
1002                 /* Cannot issue NameServer Query, so finish up discovery */
1003                 lpfc_disc_start(phba);
1004         }
1005
1006         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1007         kfree(mp);
1008         mempool_free( pmb, phba->mbox_mem_pool);
1009
1010         return;
1011 }
1012
1013 static void
1014 lpfc_register_remote_port(struct lpfc_hba * phba,
1015                             struct lpfc_nodelist * ndlp)
1016 {
1017         struct fc_rport *rport;
1018         struct lpfc_rport_data *rdata;
1019         struct fc_rport_identifiers rport_ids;
1020         uint64_t wwn;
1021
1022         /* Remote port has reappeared. Re-register w/ FC transport */
1023         memcpy(&wwn, &ndlp->nlp_nodename, sizeof(uint64_t));
1024         rport_ids.node_name = be64_to_cpu(wwn);
1025         memcpy(&wwn, &ndlp->nlp_portname, sizeof(uint64_t));
1026         rport_ids.port_name = be64_to_cpu(wwn);
1027         rport_ids.port_id = ndlp->nlp_DID;
1028         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1029         if (ndlp->nlp_type & NLP_FCP_TARGET)
1030                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1031         if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1032                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1033
1034         ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
1035         if (!rport) {
1036                 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1037                            "Warning: fc_remote_port_add failed\n");
1038                 return;
1039         }
1040
1041         /* initialize static port data */
1042         rport->maxframe_size = ndlp->nlp_maxframe;
1043         rport->supported_classes = ndlp->nlp_class_sup;
1044         if ((rport->scsi_target_id != -1) &&
1045                 (rport->scsi_target_id < MAX_FCP_TARGET)) {
1046                 ndlp->nlp_sid = rport->scsi_target_id;
1047         }
1048         rdata = rport->dd_data;
1049         rdata->pnode = ndlp;
1050
1051         return;
1052 }
1053
1054 int
1055 lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
1056 {
1057         enum { none, unmapped, mapped } rport_add = none, rport_del = none;
1058         struct lpfc_sli      *psli;
1059
1060         psli = &phba->sli;
1061         /* Sanity check to ensure we are not moving to / from the same list */
1062         if ((nlp->nlp_flag & NLP_LIST_MASK) == list) {
1063                 if (list != NLP_NO_LIST)
1064                         return(0);
1065         }
1066
1067         switch(nlp->nlp_flag & NLP_LIST_MASK) {
1068         case NLP_NO_LIST: /* Not on any list */
1069                 break;
1070         case NLP_UNUSED_LIST:
1071                 phba->fc_unused_cnt--;
1072                 list_del(&nlp->nlp_listp);
1073                 break;
1074         case NLP_PLOGI_LIST:
1075                 phba->fc_plogi_cnt--;
1076                 list_del(&nlp->nlp_listp);
1077                 break;
1078         case NLP_ADISC_LIST:
1079                 phba->fc_adisc_cnt--;
1080                 list_del(&nlp->nlp_listp);
1081                 break;
1082         case NLP_REGLOGIN_LIST:
1083                 phba->fc_reglogin_cnt--;
1084                 list_del(&nlp->nlp_listp);
1085                 break;
1086         case NLP_PRLI_LIST:
1087                 phba->fc_prli_cnt--;
1088                 list_del(&nlp->nlp_listp);
1089                 break;
1090         case NLP_UNMAPPED_LIST:
1091                 phba->fc_unmap_cnt--;
1092                 list_del(&nlp->nlp_listp);
1093                 spin_lock_irq(phba->host->host_lock);
1094                 nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1095                 nlp->nlp_type &= ~NLP_FC_NODE;
1096                 spin_unlock_irq(phba->host->host_lock);
1097                 phba->nport_event_cnt++;
1098                 if (nlp->rport)
1099                         rport_del = unmapped;
1100                 break;
1101         case NLP_MAPPED_LIST:
1102                 phba->fc_map_cnt--;
1103                 list_del(&nlp->nlp_listp);
1104                 phba->nport_event_cnt++;
1105                 if (nlp->rport)
1106                         rport_del = mapped;
1107                 break;
1108         case NLP_NPR_LIST:
1109                 phba->fc_npr_cnt--;
1110                 list_del(&nlp->nlp_listp);
1111                 /* Stop delay tmo if taking node off NPR list */
1112                 if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
1113                    (list != NLP_NPR_LIST)) {
1114                         spin_lock_irq(phba->host->host_lock);
1115                         nlp->nlp_flag &= ~NLP_DELAY_TMO;
1116                         spin_unlock_irq(phba->host->host_lock);
1117                         del_timer_sync(&nlp->nlp_delayfunc);
1118                         if (!list_empty(&nlp->els_retry_evt.evt_listp))
1119                                 list_del_init(&nlp->els_retry_evt.evt_listp);
1120                 }
1121                 break;
1122         }
1123
1124         spin_lock_irq(phba->host->host_lock);
1125         nlp->nlp_flag &= ~NLP_LIST_MASK;
1126         spin_unlock_irq(phba->host->host_lock);
1127
1128         /* Add NPort <did> to <num> list */
1129         lpfc_printf_log(phba,
1130                         KERN_INFO,
1131                         LOG_NODE,
1132                         "%d:0904 Add NPort x%x to %d list Data: x%x\n",
1133                         phba->brd_no,
1134                         nlp->nlp_DID, list, nlp->nlp_flag);
1135
1136         switch(list) {
1137         case NLP_NO_LIST: /* No list, just remove it */
1138                 lpfc_nlp_remove(phba, nlp);
1139                 /* as node removed - stop further transport calls */
1140                 rport_del = none;
1141                 break;
1142         case NLP_UNUSED_LIST:
1143                 spin_lock_irq(phba->host->host_lock);
1144                 nlp->nlp_flag |= list;
1145                 spin_unlock_irq(phba->host->host_lock);
1146                 /* Put it at the end of the unused list */
1147                 list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
1148                 phba->fc_unused_cnt++;
1149                 break;
1150         case NLP_PLOGI_LIST:
1151                 spin_lock_irq(phba->host->host_lock);
1152                 nlp->nlp_flag |= list;
1153                 spin_unlock_irq(phba->host->host_lock);
1154                 /* Put it at the end of the plogi list */
1155                 list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
1156                 phba->fc_plogi_cnt++;
1157                 break;
1158         case NLP_ADISC_LIST:
1159                 spin_lock_irq(phba->host->host_lock);
1160                 nlp->nlp_flag |= list;
1161                 spin_unlock_irq(phba->host->host_lock);
1162                 /* Put it at the end of the adisc list */
1163                 list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
1164                 phba->fc_adisc_cnt++;
1165                 break;
1166         case NLP_REGLOGIN_LIST:
1167                 spin_lock_irq(phba->host->host_lock);
1168                 nlp->nlp_flag |= list;
1169                 spin_unlock_irq(phba->host->host_lock);
1170                 /* Put it at the end of the reglogin list */
1171                 list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
1172                 phba->fc_reglogin_cnt++;
1173                 break;
1174         case NLP_PRLI_LIST:
1175                 spin_lock_irq(phba->host->host_lock);
1176                 nlp->nlp_flag |= list;
1177                 spin_unlock_irq(phba->host->host_lock);
1178                 /* Put it at the end of the prli list */
1179                 list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
1180                 phba->fc_prli_cnt++;
1181                 break;
1182         case NLP_UNMAPPED_LIST:
1183                 rport_add = unmapped;
1184                 /* ensure all vestiges of "mapped" significance are gone */
1185                 nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
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 unmap list */
1190                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
1191                 phba->fc_unmap_cnt++;
1192                 phba->nport_event_cnt++;
1193                 /* stop nodev tmo if running */
1194                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1195                         spin_lock_irq(phba->host->host_lock);
1196                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1197                         spin_unlock_irq(phba->host->host_lock);
1198                         del_timer_sync(&nlp->nlp_tmofunc);
1199                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1200                                 list_del_init(&nlp->nodev_timeout_evt.
1201                                                 evt_listp);
1202
1203                 }
1204                 nlp->nlp_type |= NLP_FC_NODE;
1205                 break;
1206         case NLP_MAPPED_LIST:
1207                 rport_add = mapped;
1208                 spin_lock_irq(phba->host->host_lock);
1209                 nlp->nlp_flag |= list;
1210                 spin_unlock_irq(phba->host->host_lock);
1211                 /* Put it at the end of the map list */
1212                 list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
1213                 phba->fc_map_cnt++;
1214                 phba->nport_event_cnt++;
1215                 /* stop nodev tmo if running */
1216                 if (nlp->nlp_flag & NLP_NODEV_TMO) {
1217                         nlp->nlp_flag &= ~NLP_NODEV_TMO;
1218                         del_timer_sync(&nlp->nlp_tmofunc);
1219                         if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
1220                                 list_del_init(&nlp->nodev_timeout_evt.
1221                                                 evt_listp);
1222
1223                 }
1224                 break;
1225         case NLP_NPR_LIST:
1226                 spin_lock_irq(phba->host->host_lock);
1227                 nlp->nlp_flag |= list;
1228                 spin_unlock_irq(phba->host->host_lock);
1229                 /* Put it at the end of the npr list */
1230                 list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
1231                 phba->fc_npr_cnt++;
1232
1233                 /*
1234                  * Sanity check for Fabric entity.
1235                  * Set nodev_tmo for NPR state, for Fabric use 1 sec.
1236                  */
1237                 if (nlp->nlp_type & NLP_FABRIC) {
1238                         mod_timer(&nlp->nlp_tmofunc, jiffies + HZ);
1239                 }
1240                 else {
1241                         mod_timer(&nlp->nlp_tmofunc,
1242                             jiffies + HZ * phba->cfg_nodev_tmo);
1243                 }
1244                 spin_lock_irq(phba->host->host_lock);
1245                 nlp->nlp_flag |= NLP_NODEV_TMO;
1246                 nlp->nlp_flag &= ~NLP_RCV_PLOGI;
1247                 spin_unlock_irq(phba->host->host_lock);
1248                 break;
1249         case NLP_JUST_DQ:
1250                 break;
1251         }
1252
1253         /*
1254          * We make all the calls into the transport after we have
1255          * moved the node between lists. This so that we don't
1256          * release the lock while in-between lists.
1257          */
1258
1259         /* Don't upcall midlayer if we're unloading */
1260         if (!(phba->fc_flag & FC_UNLOADING)) {
1261                 /*
1262                  * We revalidate the rport pointer as the "add" function
1263                  * may have removed the remote port.
1264                  */
1265                 if ((rport_del != none) && nlp->rport)
1266                         fc_remote_port_block(nlp->rport);
1267
1268                 if (rport_add != none) {
1269                         /*
1270                          * Tell the fc transport about the port, if we haven't
1271                          * already. If we have, and it's a scsi entity, be
1272                          * sure to unblock any attached scsi devices
1273                          */
1274                         if (!nlp->rport)
1275                                 lpfc_register_remote_port(phba, nlp);
1276                         else
1277                                 fc_remote_port_unblock(nlp->rport);
1278
1279                         /*
1280                          * if we added to Mapped list, but the remote port
1281                          * registration failed or assigned a target id outside
1282                          * our presentable range - move the node to the
1283                          * Unmapped List
1284                          */
1285                         if ((rport_add == mapped) &&
1286                             ((!nlp->rport) ||
1287                              (nlp->rport->scsi_target_id == -1) ||
1288                              (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) {
1289                                 nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1290                                 spin_lock_irq(phba->host->host_lock);
1291                                 nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1292                                 spin_unlock_irq(phba->host->host_lock);
1293                                 lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
1294                         }
1295                 }
1296         }
1297         return (0);
1298 }
1299
1300 /*
1301  * Start / ReStart rescue timer for Discovery / RSCN handling
1302  */
1303 void
1304 lpfc_set_disctmo(struct lpfc_hba * phba)
1305 {
1306         uint32_t tmo;
1307
1308         tmo = ((phba->fc_ratov * 2) + 1);
1309
1310         mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
1311         spin_lock_irq(phba->host->host_lock);
1312         phba->fc_flag |= FC_DISC_TMO;
1313         spin_unlock_irq(phba->host->host_lock);
1314
1315         /* Start Discovery Timer state <hba_state> */
1316         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1317                         "%d:0247 Start Discovery Timer state x%x "
1318                         "Data: x%x x%lx x%x x%x\n",
1319                         phba->brd_no,
1320                         phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
1321                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1322
1323         return;
1324 }
1325
1326 /*
1327  * Cancel rescue timer for Discovery / RSCN handling
1328  */
1329 int
1330 lpfc_can_disctmo(struct lpfc_hba * phba)
1331 {
1332         /* Turn off discovery timer if its running */
1333         if (phba->fc_flag & FC_DISC_TMO) {
1334                 spin_lock_irq(phba->host->host_lock);
1335                 phba->fc_flag &= ~FC_DISC_TMO;
1336                 spin_unlock_irq(phba->host->host_lock);
1337                 del_timer_sync(&phba->fc_disctmo);
1338                 phba->work_hba_events &= ~WORKER_DISC_TMO;
1339         }
1340
1341         /* Cancel Discovery Timer state <hba_state> */
1342         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1343                         "%d:0248 Cancel Discovery Timer state x%x "
1344                         "Data: x%x x%x x%x\n",
1345                         phba->brd_no, phba->hba_state, phba->fc_flag,
1346                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1347
1348         return (0);
1349 }
1350
1351 /*
1352  * Check specified ring for outstanding IOCB on the SLI queue
1353  * Return true if iocb matches the specified nport
1354  */
1355 int
1356 lpfc_check_sli_ndlp(struct lpfc_hba * phba,
1357                     struct lpfc_sli_ring * pring,
1358                     struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
1359 {
1360         struct lpfc_sli *psli;
1361         IOCB_t *icmd;
1362
1363         psli = &phba->sli;
1364         icmd = &iocb->iocb;
1365         if (pring->ringno == LPFC_ELS_RING) {
1366                 switch (icmd->ulpCommand) {
1367                 case CMD_GEN_REQUEST64_CR:
1368                         if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1369                                 return (1);
1370                 case CMD_ELS_REQUEST64_CR:
1371                 case CMD_XMIT_ELS_RSP64_CX:
1372                         if (iocb->context1 == (uint8_t *) ndlp)
1373                                 return (1);
1374                 }
1375         } else if (pring->ringno == psli->ip_ring) {
1376
1377         } else if (pring->ringno == psli->fcp_ring) {
1378                 /* Skip match check if waiting to relogin to FCP target */
1379                 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1380                   (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1381                         return (0);
1382                 }
1383                 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1384                         return (1);
1385                 }
1386         } else if (pring->ringno == psli->next_ring) {
1387
1388         }
1389         return (0);
1390 }
1391
1392 /*
1393  * Free resources / clean up outstanding I/Os
1394  * associated with nlp_rpi in the LPFC_NODELIST entry.
1395  */
1396 static int
1397 lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1398 {
1399         struct lpfc_sli *psli;
1400         struct lpfc_sli_ring *pring;
1401         struct lpfc_iocbq *iocb, *next_iocb;
1402         IOCB_t *icmd;
1403         uint32_t rpi, i;
1404
1405         /*
1406          * Everything that matches on txcmplq will be returned
1407          * by firmware with a no rpi error.
1408          */
1409         psli = &phba->sli;
1410         rpi = ndlp->nlp_rpi;
1411         if (rpi) {
1412                 /* Now process each ring */
1413                 for (i = 0; i < psli->num_rings; i++) {
1414                         pring = &psli->ring[i];
1415
1416                         spin_lock_irq(phba->host->host_lock);
1417                         list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1418                                                 list) {
1419                                 /*
1420                                  * Check to see if iocb matches the nport we are
1421                                  * looking for
1422                                  */
1423                                 if ((lpfc_check_sli_ndlp
1424                                      (phba, pring, iocb, ndlp))) {
1425                                         /* It matches, so deque and call compl
1426                                            with an error */
1427                                         list_del(&iocb->list);
1428                                         pring->txq_cnt--;
1429                                         if (iocb->iocb_cmpl) {
1430                                                 icmd = &iocb->iocb;
1431                                                 icmd->ulpStatus =
1432                                                     IOSTAT_LOCAL_REJECT;
1433                                                 icmd->un.ulpWord[4] =
1434                                                     IOERR_SLI_ABORTED;
1435                                                 spin_unlock_irq(phba->host->
1436                                                                 host_lock);
1437                                                 (iocb->iocb_cmpl) (phba,
1438                                                                    iocb, iocb);
1439                                                 spin_lock_irq(phba->host->
1440                                                               host_lock);
1441                                         } else {
1442                                                 list_add_tail(&iocb->list,
1443                                                         &phba->lpfc_iocb_list);
1444                                         }
1445                                 }
1446                         }
1447                         spin_unlock_irq(phba->host->host_lock);
1448
1449                 }
1450         }
1451         return (0);
1452 }
1453
1454 /*
1455  * Free rpi associated with LPFC_NODELIST entry.
1456  * This routine is called from lpfc_freenode(), when we are removing
1457  * a LPFC_NODELIST entry. It is also called if the driver initiates a
1458  * LOGO that completes successfully, and we are waiting to PLOGI back
1459  * to the remote NPort. In addition, it is called after we receive
1460  * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1461  * we are waiting to PLOGI back to the remote NPort.
1462  */
1463 int
1464 lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1465 {
1466         LPFC_MBOXQ_t *mbox;
1467         int rc;
1468
1469         if (ndlp->nlp_rpi) {
1470                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1471                         lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
1472                         mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
1473                         rc = lpfc_sli_issue_mbox
1474                                     (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1475                         if (rc == MBX_NOT_FINISHED)
1476                                 mempool_free( mbox, phba->mbox_mem_pool);
1477                 }
1478                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1479                 lpfc_no_rpi(phba, ndlp);
1480                 ndlp->nlp_rpi = 0;
1481                 return 1;
1482         }
1483         return 0;
1484 }
1485
1486 /*
1487  * Free resources associated with LPFC_NODELIST entry
1488  * so it can be freed.
1489  */
1490 static int
1491 lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1492 {
1493         LPFC_MBOXQ_t       *mb;
1494         LPFC_MBOXQ_t       *nextmb;
1495         struct lpfc_dmabuf *mp;
1496         struct fc_rport *rport;
1497
1498         /* Cleanup node for NPort <nlp_DID> */
1499         lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1500                         "%d:0900 Cleanup node for NPort x%x "
1501                         "Data: x%x x%x x%x\n",
1502                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1503                         ndlp->nlp_state, ndlp->nlp_rpi);
1504
1505         lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
1506
1507         /*
1508          * if unloading the driver - just leave the remote port in place.
1509          * The driver unload will force the attached devices to detach
1510          * and flush cache's w/o generating flush errors.
1511          */
1512         if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
1513                 rport = ndlp->rport;
1514                 ndlp->rport = NULL;
1515                 fc_remote_port_unblock(rport);
1516                 fc_remote_port_delete(rport);
1517                 ndlp->nlp_sid = NLP_NO_SID;
1518         }
1519
1520         /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1521         if ((mb = phba->sli.mbox_active)) {
1522                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1523                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1524                         mb->context2 = NULL;
1525                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1526                 }
1527         }
1528         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1529                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1530                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1531                         mp = (struct lpfc_dmabuf *) (mb->context1);
1532                         if (mp) {
1533                                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1534                                 kfree(mp);
1535                         }
1536                         list_del(&mb->list);
1537                         mempool_free(mb, phba->mbox_mem_pool);
1538                 }
1539         }
1540
1541         lpfc_els_abort(phba,ndlp,0);
1542         spin_lock_irq(phba->host->host_lock);
1543         ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
1544         spin_unlock_irq(phba->host->host_lock);
1545         del_timer_sync(&ndlp->nlp_tmofunc);
1546
1547         del_timer_sync(&ndlp->nlp_delayfunc);
1548
1549         if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1550                 list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1551         if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1552                 list_del_init(&ndlp->els_retry_evt.evt_listp);
1553
1554         lpfc_unreg_rpi(phba, ndlp);
1555
1556         return (0);
1557 }
1558
1559 /*
1560  * Check to see if we can free the nlp back to the freelist.
1561  * If we are in the middle of using the nlp in the discovery state
1562  * machine, defer the free till we reach the end of the state machine.
1563  */
1564 int
1565 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
1566 {
1567         if (ndlp->nlp_flag & NLP_NODEV_TMO) {
1568                 spin_lock_irq(phba->host->host_lock);
1569                 ndlp->nlp_flag &= ~NLP_NODEV_TMO;
1570                 spin_unlock_irq(phba->host->host_lock);
1571                 del_timer_sync(&ndlp->nlp_tmofunc);
1572                 if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
1573                         list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
1574
1575         }
1576
1577
1578         if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1579                 spin_lock_irq(phba->host->host_lock);
1580                 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1581                 spin_unlock_irq(phba->host->host_lock);
1582                 del_timer_sync(&ndlp->nlp_delayfunc);
1583                 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1584                         list_del_init(&ndlp->els_retry_evt.evt_listp);
1585         }
1586
1587         if (ndlp->nlp_disc_refcnt) {
1588                 spin_lock_irq(phba->host->host_lock);
1589                 ndlp->nlp_flag |= NLP_DELAY_REMOVE;
1590                 spin_unlock_irq(phba->host->host_lock);
1591         }
1592         else {
1593                 lpfc_freenode(phba, ndlp);
1594                 mempool_free( ndlp, phba->nlp_mem_pool);
1595         }
1596         return(0);
1597 }
1598
1599 static int
1600 lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
1601 {
1602         D_ID mydid;
1603         D_ID ndlpdid;
1604         D_ID matchdid;
1605
1606         if (did == Bcast_DID)
1607                 return (0);
1608
1609         if (ndlp->nlp_DID == 0) {
1610                 return (0);
1611         }
1612
1613         /* First check for Direct match */
1614         if (ndlp->nlp_DID == did)
1615                 return (1);
1616
1617         /* Next check for area/domain identically equals 0 match */
1618         mydid.un.word = phba->fc_myDID;
1619         if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
1620                 return (0);
1621         }
1622
1623         matchdid.un.word = did;
1624         ndlpdid.un.word = ndlp->nlp_DID;
1625         if (matchdid.un.b.id == ndlpdid.un.b.id) {
1626                 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
1627                     (mydid.un.b.area == matchdid.un.b.area)) {
1628                         if ((ndlpdid.un.b.domain == 0) &&
1629                             (ndlpdid.un.b.area == 0)) {
1630                                 if (ndlpdid.un.b.id)
1631                                         return (1);
1632                         }
1633                         return (0);
1634                 }
1635
1636                 matchdid.un.word = ndlp->nlp_DID;
1637                 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
1638                     (mydid.un.b.area == ndlpdid.un.b.area)) {
1639                         if ((matchdid.un.b.domain == 0) &&
1640                             (matchdid.un.b.area == 0)) {
1641                                 if (matchdid.un.b.id)
1642                                         return (1);
1643                         }
1644                 }
1645         }
1646         return (0);
1647 }
1648
1649 /* Search for a nodelist entry on a specific list */
1650 struct lpfc_nodelist *
1651 lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
1652 {
1653         struct lpfc_nodelist *ndlp, *next_ndlp;
1654         uint32_t data1;
1655
1656         if (order & NLP_SEARCH_UNMAPPED) {
1657                 list_for_each_entry_safe(ndlp, next_ndlp,
1658                                          &phba->fc_nlpunmap_list, nlp_listp) {
1659                         if (lpfc_matchdid(phba, ndlp, did)) {
1660                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1661                                          ((uint32_t) ndlp->nlp_xri << 16) |
1662                                          ((uint32_t) ndlp->nlp_type << 8) |
1663                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1664                                 /* FIND node DID unmapped */
1665                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1666                                                 "%d:0929 FIND node DID unmapped"
1667                                                 " Data: x%p x%x x%x x%x\n",
1668                                                 phba->brd_no,
1669                                                 ndlp, ndlp->nlp_DID,
1670                                                 ndlp->nlp_flag, data1);
1671                                 return (ndlp);
1672                         }
1673                 }
1674         }
1675
1676         if (order & NLP_SEARCH_MAPPED) {
1677                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1678                                         nlp_listp) {
1679                         if (lpfc_matchdid(phba, ndlp, did)) {
1680
1681                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1682                                          ((uint32_t) ndlp->nlp_xri << 16) |
1683                                          ((uint32_t) ndlp->nlp_type << 8) |
1684                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1685                                 /* FIND node DID mapped */
1686                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1687                                                 "%d:0930 FIND node DID mapped "
1688                                                 "Data: x%p x%x x%x x%x\n",
1689                                                 phba->brd_no,
1690                                                 ndlp, ndlp->nlp_DID,
1691                                                 ndlp->nlp_flag, data1);
1692                                 return (ndlp);
1693                         }
1694                 }
1695         }
1696
1697         if (order & NLP_SEARCH_PLOGI) {
1698                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1699                                         nlp_listp) {
1700                         if (lpfc_matchdid(phba, ndlp, did)) {
1701
1702                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1703                                          ((uint32_t) ndlp->nlp_xri << 16) |
1704                                          ((uint32_t) ndlp->nlp_type << 8) |
1705                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1706                                 /* LOG change to PLOGI */
1707                                 /* FIND node DID plogi */
1708                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1709                                                 "%d:0908 FIND node DID plogi "
1710                                                 "Data: x%p x%x x%x x%x\n",
1711                                                 phba->brd_no,
1712                                                 ndlp, ndlp->nlp_DID,
1713                                                 ndlp->nlp_flag, data1);
1714                                 return (ndlp);
1715                         }
1716                 }
1717         }
1718
1719         if (order & NLP_SEARCH_ADISC) {
1720                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1721                                         nlp_listp) {
1722                         if (lpfc_matchdid(phba, ndlp, did)) {
1723
1724                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1725                                          ((uint32_t) ndlp->nlp_xri << 16) |
1726                                          ((uint32_t) ndlp->nlp_type << 8) |
1727                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1728                                 /* LOG change to ADISC */
1729                                 /* FIND node DID adisc */
1730                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1731                                                 "%d:0931 FIND node DID adisc "
1732                                                 "Data: x%p x%x x%x x%x\n",
1733                                                 phba->brd_no,
1734                                                 ndlp, ndlp->nlp_DID,
1735                                                 ndlp->nlp_flag, data1);
1736                                 return (ndlp);
1737                         }
1738                 }
1739         }
1740
1741         if (order & NLP_SEARCH_REGLOGIN) {
1742                 list_for_each_entry_safe(ndlp, next_ndlp,
1743                                          &phba->fc_reglogin_list, nlp_listp) {
1744                         if (lpfc_matchdid(phba, ndlp, did)) {
1745
1746                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1747                                          ((uint32_t) ndlp->nlp_xri << 16) |
1748                                          ((uint32_t) ndlp->nlp_type << 8) |
1749                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1750                                 /* LOG change to REGLOGIN */
1751                                 /* FIND node DID reglogin */
1752                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1753                                                 "%d:0931 FIND node DID reglogin"
1754                                                 " Data: x%p x%x x%x x%x\n",
1755                                                 phba->brd_no,
1756                                                 ndlp, ndlp->nlp_DID,
1757                                                 ndlp->nlp_flag, data1);
1758                                 return (ndlp);
1759                         }
1760                 }
1761         }
1762
1763         if (order & NLP_SEARCH_PRLI) {
1764                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1765                                         nlp_listp) {
1766                         if (lpfc_matchdid(phba, ndlp, did)) {
1767
1768                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1769                                          ((uint32_t) ndlp->nlp_xri << 16) |
1770                                          ((uint32_t) ndlp->nlp_type << 8) |
1771                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1772                                 /* LOG change to PRLI */
1773                                 /* FIND node DID prli */
1774                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1775                                                 "%d:0931 FIND node DID prli "
1776                                                 "Data: x%p x%x x%x x%x\n",
1777                                                 phba->brd_no,
1778                                                 ndlp, ndlp->nlp_DID,
1779                                                 ndlp->nlp_flag, data1);
1780                                 return (ndlp);
1781                         }
1782                 }
1783         }
1784
1785         if (order & NLP_SEARCH_NPR) {
1786                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1787                                         nlp_listp) {
1788                         if (lpfc_matchdid(phba, ndlp, did)) {
1789
1790                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1791                                          ((uint32_t) ndlp->nlp_xri << 16) |
1792                                          ((uint32_t) ndlp->nlp_type << 8) |
1793                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1794                                 /* LOG change to NPR */
1795                                 /* FIND node DID npr */
1796                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1797                                                 "%d:0931 FIND node DID npr "
1798                                                 "Data: x%p x%x x%x x%x\n",
1799                                                 phba->brd_no,
1800                                                 ndlp, ndlp->nlp_DID,
1801                                                 ndlp->nlp_flag, data1);
1802                                 return (ndlp);
1803                         }
1804                 }
1805         }
1806
1807         if (order & NLP_SEARCH_UNUSED) {
1808                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1809                                         nlp_listp) {
1810                         if (lpfc_matchdid(phba, ndlp, did)) {
1811
1812                                 data1 = (((uint32_t) ndlp->nlp_state << 24) |
1813                                          ((uint32_t) ndlp->nlp_xri << 16) |
1814                                          ((uint32_t) ndlp->nlp_type << 8) |
1815                                          ((uint32_t) ndlp->nlp_rpi & 0xff));
1816                                 /* LOG change to UNUSED */
1817                                 /* FIND node DID unused */
1818                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1819                                                 "%d:0931 FIND node DID unused "
1820                                                 "Data: x%p x%x x%x x%x\n",
1821                                                 phba->brd_no,
1822                                                 ndlp, ndlp->nlp_DID,
1823                                                 ndlp->nlp_flag, data1);
1824                                 return (ndlp);
1825                         }
1826                 }
1827         }
1828
1829         /* FIND node did <did> NOT FOUND */
1830         lpfc_printf_log(phba,
1831                         KERN_INFO,
1832                         LOG_NODE,
1833                         "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
1834                         phba->brd_no, did, order);
1835
1836         /* no match found */
1837         return NULL;
1838 }
1839
1840 struct lpfc_nodelist *
1841 lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
1842 {
1843         struct lpfc_nodelist *ndlp;
1844         uint32_t flg;
1845
1846         if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) {
1847                 if ((phba->hba_state == LPFC_HBA_READY) &&
1848                    ((lpfc_rscn_payload_check(phba, did) == 0)))
1849                         return NULL;
1850                 ndlp = (struct lpfc_nodelist *)
1851                      mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1852                 if (!ndlp)
1853                         return NULL;
1854                 lpfc_nlp_init(phba, ndlp, did);
1855                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1856                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1857                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1858                 return ndlp;
1859         }
1860         if ((phba->hba_state == LPFC_HBA_READY) &&
1861             (phba->fc_flag & FC_RSCN_MODE)) {
1862                 if (lpfc_rscn_payload_check(phba, did)) {
1863                         ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1864                 }
1865                 else {
1866                         ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1867                         ndlp = NULL;
1868                 }
1869         }
1870         else {
1871                 flg = ndlp->nlp_flag & NLP_LIST_MASK;
1872                 if ((flg == NLP_ADISC_LIST) ||
1873                 (flg == NLP_PLOGI_LIST)) {
1874                         return NULL;
1875                 }
1876                 ndlp->nlp_state = NLP_STE_NPR_NODE;
1877                 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1878                 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1879         }
1880         return ndlp;
1881 }
1882
1883 /* Build a list of nodes to discover based on the loopmap */
1884 void
1885 lpfc_disc_list_loopmap(struct lpfc_hba * phba)
1886 {
1887         int j;
1888         uint32_t alpa, index;
1889
1890         if (phba->hba_state <= LPFC_LINK_DOWN) {
1891                 return;
1892         }
1893         if (phba->fc_topology != TOPOLOGY_LOOP) {
1894                 return;
1895         }
1896
1897         /* Check for loop map present or not */
1898         if (phba->alpa_map[0]) {
1899                 for (j = 1; j <= phba->alpa_map[0]; j++) {
1900                         alpa = phba->alpa_map[j];
1901
1902                         if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
1903                                 continue;
1904                         }
1905                         lpfc_setup_disc_node(phba, alpa);
1906                 }
1907         } else {
1908                 /* No alpamap, so try all alpa's */
1909                 for (j = 0; j < FC_MAXLOOP; j++) {
1910                         /* If cfg_scan_down is set, start from highest
1911                          * ALPA (0xef) to lowest (0x1).
1912                          */
1913                         if (phba->cfg_scan_down)
1914                                 index = j;
1915                         else
1916                                 index = FC_MAXLOOP - j - 1;
1917                         alpa = lpfcAlpaArray[index];
1918                         if ((phba->fc_myDID & 0xff) == alpa) {
1919                                 continue;
1920                         }
1921
1922                         lpfc_setup_disc_node(phba, alpa);
1923                 }
1924         }
1925         return;
1926 }
1927
1928 /* Start Link up / RSCN discovery on NPR list */
1929 void
1930 lpfc_disc_start(struct lpfc_hba * phba)
1931 {
1932         struct lpfc_sli *psli;
1933         LPFC_MBOXQ_t *mbox;
1934         struct lpfc_nodelist *ndlp, *next_ndlp;
1935         uint32_t did_changed, num_sent;
1936         uint32_t clear_la_pending;
1937         int rc;
1938
1939         psli = &phba->sli;
1940
1941         if (phba->hba_state <= LPFC_LINK_DOWN) {
1942                 return;
1943         }
1944         if (phba->hba_state == LPFC_CLEAR_LA)
1945                 clear_la_pending = 1;
1946         else
1947                 clear_la_pending = 0;
1948
1949         if (phba->hba_state < LPFC_HBA_READY) {
1950                 phba->hba_state = LPFC_DISC_AUTH;
1951         }
1952         lpfc_set_disctmo(phba);
1953
1954         if (phba->fc_prevDID == phba->fc_myDID) {
1955                 did_changed = 0;
1956         } else {
1957                 did_changed = 1;
1958         }
1959         phba->fc_prevDID = phba->fc_myDID;
1960         phba->num_disc_nodes = 0;
1961
1962         /* Start Discovery state <hba_state> */
1963         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1964                         "%d:0202 Start Discovery hba state x%x "
1965                         "Data: x%x x%x x%x\n",
1966                         phba->brd_no, phba->hba_state, phba->fc_flag,
1967                         phba->fc_plogi_cnt, phba->fc_adisc_cnt);
1968
1969         /* If our did changed, we MUST do PLOGI */
1970         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1971                                 nlp_listp) {
1972                 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1973                         if (did_changed) {
1974                                 spin_lock_irq(phba->host->host_lock);
1975                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1976                                 spin_unlock_irq(phba->host->host_lock);
1977                         }
1978                 }
1979         }
1980
1981         /* First do ADISCs - if any */
1982         num_sent = lpfc_els_disc_adisc(phba);
1983
1984         if (num_sent)
1985                 return;
1986
1987         if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
1988                 /* If we get here, there is nothing to ADISC */
1989                 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
1990                         phba->hba_state = LPFC_CLEAR_LA;
1991                         lpfc_clear_la(phba, mbox);
1992                         mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
1993                         rc = lpfc_sli_issue_mbox(phba, mbox,
1994                                                  (MBX_NOWAIT | MBX_STOP_IOCB));
1995                         if (rc == MBX_NOT_FINISHED) {
1996                                 mempool_free( mbox, phba->mbox_mem_pool);
1997                                 lpfc_disc_flush_list(phba);
1998                                 psli->ring[(psli->ip_ring)].flag &=
1999                                         ~LPFC_STOP_IOCB_EVENT;
2000                                 psli->ring[(psli->fcp_ring)].flag &=
2001                                         ~LPFC_STOP_IOCB_EVENT;
2002                                 psli->ring[(psli->next_ring)].flag &=
2003                                         ~LPFC_STOP_IOCB_EVENT;
2004                                 phba->hba_state = LPFC_HBA_READY;
2005                         }
2006                 }
2007         } else {
2008                 /* Next do PLOGIs - if any */
2009                 num_sent = lpfc_els_disc_plogi(phba);
2010
2011                 if (num_sent)
2012                         return;
2013
2014                 if (phba->fc_flag & FC_RSCN_MODE) {
2015                         /* Check to see if more RSCNs came in while we
2016                          * were processing this one.
2017                          */
2018                         if ((phba->fc_rscn_id_cnt == 0) &&
2019                             (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
2020                                 spin_lock_irq(phba->host->host_lock);
2021                                 phba->fc_flag &= ~FC_RSCN_MODE;
2022                                 spin_unlock_irq(phba->host->host_lock);
2023                         }
2024                         else
2025                                 lpfc_els_handle_rscn(phba);
2026                 }
2027         }
2028         return;
2029 }
2030
2031 /*
2032  *  Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2033  *  ring the match the sppecified nodelist.
2034  */
2035 static void
2036 lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
2037 {
2038         struct lpfc_sli *psli;
2039         IOCB_t     *icmd;
2040         struct lpfc_iocbq    *iocb, *next_iocb;
2041         struct lpfc_sli_ring *pring;
2042         struct lpfc_dmabuf   *mp;
2043
2044         psli = &phba->sli;
2045         pring = &psli->ring[LPFC_ELS_RING];
2046
2047         /* Error matching iocb on txq or txcmplq
2048          * First check the txq.
2049          */
2050         list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2051                 if (iocb->context1 != ndlp) {
2052                         continue;
2053                 }
2054                 icmd = &iocb->iocb;
2055                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2056                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2057
2058                         list_del(&iocb->list);
2059                         pring->txq_cnt--;
2060                         lpfc_els_free_iocb(phba, iocb);
2061                 }
2062         }
2063
2064         /* Next check the txcmplq */
2065         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2066                 if (iocb->context1 != ndlp) {
2067                         continue;
2068                 }
2069                 icmd = &iocb->iocb;
2070                 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2071                     (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2072
2073                         iocb->iocb_cmpl = NULL;
2074                         /* context2 = cmd, context2->next = rsp, context3 =
2075                            bpl */
2076                         if (iocb->context2) {
2077                                 /* Free the response IOCB before handling the
2078                                    command. */
2079
2080                                 mp = (struct lpfc_dmabuf *) (iocb->context2);
2081                                 mp = list_get_first(&mp->list,
2082                                                     struct lpfc_dmabuf,
2083                                                     list);
2084                                 if (mp) {
2085                                         /* Delay before releasing rsp buffer to
2086                                          * give UNREG mbox a chance to take
2087                                          * effect.
2088                                          */
2089                                         list_add(&mp->list,
2090                                                 &phba->freebufList);
2091                                 }
2092                                 lpfc_mbuf_free(phba,
2093                                                ((struct lpfc_dmabuf *)
2094                                                 iocb->context2)->virt,
2095                                                ((struct lpfc_dmabuf *)
2096                                                 iocb->context2)->phys);
2097                                 kfree(iocb->context2);
2098                         }
2099
2100                         if (iocb->context3) {
2101                                 lpfc_mbuf_free(phba,
2102                                                ((struct lpfc_dmabuf *)
2103                                                 iocb->context3)->virt,
2104                                                ((struct lpfc_dmabuf *)
2105                                                 iocb->context3)->phys);
2106                                 kfree(iocb->context3);
2107                         }
2108                 }
2109         }
2110
2111         return;
2112 }
2113
2114 void
2115 lpfc_disc_flush_list(struct lpfc_hba * phba)
2116 {
2117         struct lpfc_nodelist *ndlp, *next_ndlp;
2118
2119         if (phba->fc_plogi_cnt) {
2120                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
2121                                         nlp_listp) {
2122                         lpfc_free_tx(phba, ndlp);
2123                         lpfc_nlp_remove(phba, ndlp);
2124                 }
2125         }
2126         if (phba->fc_adisc_cnt) {
2127                 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
2128                                         nlp_listp) {
2129                         lpfc_free_tx(phba, ndlp);
2130                         lpfc_nlp_remove(phba, ndlp);
2131                 }
2132         }
2133         return;
2134 }
2135
2136 /*****************************************************************************/
2137 /*
2138  * NAME:     lpfc_disc_timeout
2139  *
2140  * FUNCTION: Fibre Channel driver discovery timeout routine.
2141  *
2142  * EXECUTION ENVIRONMENT: interrupt only
2143  *
2144  * CALLED FROM:
2145  *      Timer function
2146  *
2147  * RETURNS:
2148  *      none
2149  */
2150 /*****************************************************************************/
2151 void
2152 lpfc_disc_timeout(unsigned long ptr)
2153 {
2154         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2155         unsigned long flags = 0;
2156
2157         if (unlikely(!phba))
2158                 return;
2159
2160         spin_lock_irqsave(phba->host->host_lock, flags);
2161         if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
2162                 phba->work_hba_events |= WORKER_DISC_TMO;
2163                 if (phba->work_wait)
2164                         wake_up(phba->work_wait);
2165         }
2166         spin_unlock_irqrestore(phba->host->host_lock, flags);
2167         return;
2168 }
2169
2170 static void
2171 lpfc_disc_timeout_handler(struct lpfc_hba *phba)
2172 {
2173         struct lpfc_sli *psli;
2174         struct lpfc_nodelist *ndlp;
2175         LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
2176         int rc, clrlaerr = 0;
2177
2178         if (unlikely(!phba))
2179                 return;
2180
2181         if (!(phba->fc_flag & FC_DISC_TMO))
2182                 return;
2183
2184         psli = &phba->sli;
2185
2186         spin_lock_irq(phba->host->host_lock);
2187         phba->fc_flag &= ~FC_DISC_TMO;
2188         spin_unlock_irq(phba->host->host_lock);
2189
2190         switch (phba->hba_state) {
2191
2192         case LPFC_LOCAL_CFG_LINK:
2193         /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
2194                 /* FAN timeout */
2195                 lpfc_printf_log(phba,
2196                                  KERN_WARNING,
2197                                  LOG_DISCOVERY,
2198                                  "%d:0221 FAN timeout\n",
2199                                  phba->brd_no);
2200
2201                 /* Forget about FAN, Start discovery by sending a FLOGI
2202                  * hba_state is identically LPFC_FLOGI while waiting for FLOGI
2203                  * cmpl
2204                  */
2205                 phba->hba_state = LPFC_FLOGI;
2206                 lpfc_set_disctmo(phba);
2207                 lpfc_initial_flogi(phba);
2208                 break;
2209
2210         case LPFC_FLOGI:
2211         /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2212                 /* Initial FLOGI timeout */
2213                 lpfc_printf_log(phba,
2214                                  KERN_ERR,
2215                                  LOG_DISCOVERY,
2216                                  "%d:0222 Initial FLOGI timeout\n",
2217                                  phba->brd_no);
2218
2219                 /* Assume no Fabric and go on with discovery.
2220                  * Check for outstanding ELS FLOGI to abort.
2221                  */
2222
2223                 /* FLOGI failed, so just use loop map to make discovery list */
2224                 lpfc_disc_list_loopmap(phba);
2225
2226                 /* Start discovery */
2227                 lpfc_disc_start(phba);
2228                 break;
2229
2230         case LPFC_FABRIC_CFG_LINK:
2231         /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2232            NameServer login */
2233                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2234                                 "%d:0223 Timeout while waiting for NameServer "
2235                                 "login\n", phba->brd_no);
2236
2237                 /* Next look for NameServer ndlp */
2238                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2239                 if (ndlp)
2240                         lpfc_nlp_remove(phba, ndlp);
2241                 /* Start discovery */
2242                 lpfc_disc_start(phba);
2243                 break;
2244
2245         case LPFC_NS_QRY:
2246         /* Check for wait for NameServer Rsp timeout */
2247                 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2248                                 "%d:0224 NameServer Query timeout "
2249                                 "Data: x%x x%x\n",
2250                                 phba->brd_no,
2251                                 phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2252
2253                 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
2254                                                                 NameServer_DID);
2255                 if (ndlp) {
2256                         if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2257                                 /* Try it one more time */
2258                                 rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
2259                                 if (rc == 0)
2260                                         break;
2261                         }
2262                         phba->fc_ns_retry = 0;
2263                 }
2264
2265                 /* Nothing to authenticate, so CLEAR_LA right now */
2266                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2267                 if (!clearlambox) {
2268                         clrlaerr = 1;
2269                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2270                                         "%d:0226 Device Discovery "
2271                                         "completion error\n",
2272                                         phba->brd_no);
2273                         phba->hba_state = LPFC_HBA_ERROR;
2274                         break;
2275                 }
2276
2277                 phba->hba_state = LPFC_CLEAR_LA;
2278                 lpfc_clear_la(phba, clearlambox);
2279                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2280                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2281                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2282                 if (rc == MBX_NOT_FINISHED) {
2283                         mempool_free(clearlambox, phba->mbox_mem_pool);
2284                         clrlaerr = 1;
2285                         break;
2286                 }
2287
2288                 /* Setup and issue mailbox INITIALIZE LINK command */
2289                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2290                 if (!initlinkmbox) {
2291                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2292                                         "%d:0226 Device Discovery "
2293                                         "completion error\n",
2294                                         phba->brd_no);
2295                         phba->hba_state = LPFC_HBA_ERROR;
2296                         break;
2297                 }
2298
2299                 lpfc_linkdown(phba);
2300                 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2301                                phba->cfg_link_speed);
2302                 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2303                 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2304                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2305                 if (rc == MBX_NOT_FINISHED)
2306                         mempool_free(initlinkmbox, phba->mbox_mem_pool);
2307
2308                 break;
2309
2310         case LPFC_DISC_AUTH:
2311         /* Node Authentication timeout */
2312                 lpfc_printf_log(phba,
2313                                  KERN_ERR,
2314                                  LOG_DISCOVERY,
2315                                  "%d:0227 Node Authentication timeout\n",
2316                                  phba->brd_no);
2317                 lpfc_disc_flush_list(phba);
2318                 clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2319                 if (!clearlambox) {
2320                         clrlaerr = 1;
2321                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2322                                         "%d:0226 Device Discovery "
2323                                         "completion error\n",
2324                                         phba->brd_no);
2325                         phba->hba_state = LPFC_HBA_ERROR;
2326                         break;
2327                 }
2328                 phba->hba_state = LPFC_CLEAR_LA;
2329                 lpfc_clear_la(phba, clearlambox);
2330                 clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2331                 rc = lpfc_sli_issue_mbox(phba, clearlambox,
2332                                          (MBX_NOWAIT | MBX_STOP_IOCB));
2333                 if (rc == MBX_NOT_FINISHED) {
2334                         mempool_free(clearlambox, phba->mbox_mem_pool);
2335                         clrlaerr = 1;
2336                 }
2337                 break;
2338
2339         case LPFC_CLEAR_LA:
2340         /* CLEAR LA timeout */
2341                 lpfc_printf_log(phba,
2342                                  KERN_ERR,
2343                                  LOG_DISCOVERY,
2344                                  "%d:0228 CLEAR LA timeout\n",
2345                                  phba->brd_no);
2346                 clrlaerr = 1;
2347                 break;
2348
2349         case LPFC_HBA_READY:
2350                 if (phba->fc_flag & FC_RSCN_MODE) {
2351                         lpfc_printf_log(phba,
2352                                         KERN_ERR,
2353                                         LOG_DISCOVERY,
2354                                         "%d:0231 RSCN timeout Data: x%x x%x\n",
2355                                         phba->brd_no,
2356                                         phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
2357
2358                         /* Cleanup any outstanding ELS commands */
2359                         lpfc_els_flush_cmd(phba);
2360
2361                         lpfc_els_flush_rscn(phba);
2362                         lpfc_disc_flush_list(phba);
2363                 }
2364                 break;
2365         }
2366
2367         if (clrlaerr) {
2368                 lpfc_disc_flush_list(phba);
2369                 psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2370                 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2371                 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2372                 phba->hba_state = LPFC_HBA_READY;
2373         }
2374
2375         return;
2376 }
2377
2378 static void
2379 lpfc_nodev_timeout(unsigned long ptr)
2380 {
2381         struct lpfc_hba *phba;
2382         struct lpfc_nodelist *ndlp;
2383         unsigned long iflag;
2384         struct lpfc_work_evt  *evtp;
2385
2386         ndlp = (struct lpfc_nodelist *)ptr;
2387         phba = ndlp->nlp_phba;
2388         evtp = &ndlp->nodev_timeout_evt;
2389         spin_lock_irqsave(phba->host->host_lock, iflag);
2390
2391         if (!list_empty(&evtp->evt_listp)) {
2392                 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2393                 return;
2394         }
2395         evtp->evt_arg1  = ndlp;
2396         evtp->evt       = LPFC_EVT_NODEV_TMO;
2397         list_add_tail(&evtp->evt_listp, &phba->work_list);
2398         if (phba->work_wait)
2399                 wake_up(phba->work_wait);
2400
2401         spin_unlock_irqrestore(phba->host->host_lock, iflag);
2402         return;
2403 }
2404
2405
2406 /*
2407  * This routine handles processing a NameServer REG_LOGIN mailbox
2408  * command upon completion. It is setup in the LPFC_MBOXQ
2409  * as the completion routine when the command is
2410  * handed off to the SLI layer.
2411  */
2412 void
2413 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2414 {
2415         struct lpfc_sli *psli;
2416         MAILBOX_t *mb;
2417         struct lpfc_dmabuf *mp;
2418         struct lpfc_nodelist *ndlp;
2419
2420         psli = &phba->sli;
2421         mb = &pmb->mb;
2422
2423         ndlp = (struct lpfc_nodelist *) pmb->context2;
2424         mp = (struct lpfc_dmabuf *) (pmb->context1);
2425
2426         pmb->context1 = NULL;
2427
2428         if (ndlp->nlp_rpi != 0)
2429                 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
2430         ndlp->nlp_rpi = mb->un.varWords[0];
2431         lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
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 hash
2458  * table for the given RPI. If rpi found
2459  * it return the node list pointer
2460  * else return 0.
2461  */
2462 struct lpfc_nodelist *
2463 lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
2464 {
2465         struct lpfc_nodelist *ret;
2466
2467         ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2468         while ((ret != 0) && (ret->nlp_rpi != rpi)) {
2469                 ret = ret->nlp_rpi_hash_next;
2470         }
2471         return ret;
2472 }
2473
2474 /*
2475  * This routine looks up the ndlp hash table for the
2476  * given RPI. If rpi found it return the node list
2477  * pointer else return 0 after deleting the entry
2478  * from hash table.
2479  */
2480 struct lpfc_nodelist *
2481 lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi)
2482 {
2483         struct lpfc_nodelist *ret, *temp;;
2484
2485         ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)];
2486         if (ret == 0)
2487                 return NULL;
2488
2489         if (ret->nlp_rpi == rpi) {
2490                 phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] =
2491                     ret->nlp_rpi_hash_next;
2492                 ret->nlp_rpi_hash_next = NULL;
2493                 return ret;
2494         }
2495
2496         while ((ret->nlp_rpi_hash_next != 0) &&
2497                (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) {
2498                 ret = ret->nlp_rpi_hash_next;
2499         }
2500
2501         if (ret->nlp_rpi_hash_next != 0) {
2502                 temp = ret->nlp_rpi_hash_next;
2503                 ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next;
2504                 temp->nlp_rpi_hash_next = NULL;
2505                 return temp;
2506         } else {
2507                 return NULL;
2508         }
2509 }
2510
2511 /*
2512  * This routine adds the node list entry to the
2513  * ndlp hash table.
2514  */
2515 void
2516 lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2517                  uint16_t rpi)
2518 {
2519
2520         uint32_t index;
2521
2522         index = LPFC_RPI_HASH_FUNC(rpi);
2523         ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index];
2524         phba->fc_nlplookup[index] = ndlp;
2525         return;
2526 }
2527
2528 void
2529 lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
2530                  uint32_t did)
2531 {
2532         memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2533         INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
2534         INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2535         init_timer(&ndlp->nlp_tmofunc);
2536         ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
2537         ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
2538         init_timer(&ndlp->nlp_delayfunc);
2539         ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2540         ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2541         ndlp->nlp_DID = did;
2542         ndlp->nlp_phba = phba;
2543         ndlp->nlp_sid = NLP_NO_SID;
2544         return;
2545 }