0a7f06ba77c00cc74ad49509218b82b2ffc22891
[linux-2.6.git] / drivers / scsi / lpfc / lpfc_attr.c
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2004-2007 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/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.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_tcq.h>
31 #include <scsi/scsi_transport_fc.h>
32
33 #include "lpfc_hw.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_disc.h"
36 #include "lpfc_scsi.h"
37 #include "lpfc.h"
38 #include "lpfc_logmsg.h"
39 #include "lpfc_version.h"
40 #include "lpfc_compat.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_vport.h"
43
44 #define LPFC_DEF_DEVLOSS_TMO 30
45 #define LPFC_MIN_DEVLOSS_TMO 1
46 #define LPFC_MAX_DEVLOSS_TMO 255
47
48 static void
49 lpfc_jedec_to_ascii(int incr, char hdw[])
50 {
51         int i, j;
52         for (i = 0; i < 8; i++) {
53                 j = (incr & 0xf);
54                 if (j <= 9)
55                         hdw[7 - i] = 0x30 +  j;
56                  else
57                         hdw[7 - i] = 0x61 + j - 10;
58                 incr = (incr >> 4);
59         }
60         hdw[8] = 0;
61         return;
62 }
63
64 static ssize_t
65 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
66 {
67         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
68 }
69
70 static ssize_t
71 lpfc_info_show(struct class_device *cdev, char *buf)
72 {
73         struct Scsi_Host *host = class_to_shost(cdev);
74
75         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
76 }
77
78 static ssize_t
79 lpfc_serialnum_show(struct class_device *cdev, char *buf)
80 {
81         struct Scsi_Host  *shost = class_to_shost(cdev);
82         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
83         struct lpfc_hba   *phba = vport->phba;
84
85         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
86 }
87
88 static ssize_t
89 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
90 {
91         struct Scsi_Host  *shost = class_to_shost(cdev);
92         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
93         struct lpfc_hba   *phba = vport->phba;
94
95         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
96 }
97
98 static ssize_t
99 lpfc_modelname_show(struct class_device *cdev, char *buf)
100 {
101         struct Scsi_Host  *shost = class_to_shost(cdev);
102         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
103         struct lpfc_hba   *phba = vport->phba;
104
105         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
106 }
107
108 static ssize_t
109 lpfc_programtype_show(struct class_device *cdev, char *buf)
110 {
111         struct Scsi_Host  *shost = class_to_shost(cdev);
112         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
113         struct lpfc_hba   *phba = vport->phba;
114
115         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
116 }
117
118 static ssize_t
119 lpfc_vportnum_show(struct class_device *cdev, char *buf)
120 {
121         struct Scsi_Host  *shost = class_to_shost(cdev);
122         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
123         struct lpfc_hba   *phba = vport->phba;
124
125         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
126 }
127
128 static ssize_t
129 lpfc_fwrev_show(struct class_device *cdev, char *buf)
130 {
131         struct Scsi_Host  *shost = class_to_shost(cdev);
132         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
133         struct lpfc_hba   *phba = vport->phba;
134         char fwrev[32];
135
136         lpfc_decode_firmware_rev(phba, fwrev, 1);
137         return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
138 }
139
140 static ssize_t
141 lpfc_hdw_show(struct class_device *cdev, char *buf)
142 {
143         char hdw[9];
144         struct Scsi_Host  *shost = class_to_shost(cdev);
145         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
146         struct lpfc_hba   *phba = vport->phba;
147         lpfc_vpd_t *vp = &phba->vpd;
148
149         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
150         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
151 }
152 static ssize_t
153 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
154 {
155         struct Scsi_Host  *shost = class_to_shost(cdev);
156         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
157         struct lpfc_hba   *phba = vport->phba;
158
159         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
160 }
161 static ssize_t
162 lpfc_state_show(struct class_device *cdev, char *buf)
163 {
164         struct Scsi_Host  *shost = class_to_shost(cdev);
165         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
166         struct lpfc_hba   *phba = vport->phba;
167         int  len = 0;
168
169         switch (phba->link_state) {
170         case LPFC_LINK_UNKNOWN:
171         case LPFC_WARM_START:
172         case LPFC_INIT_START:
173         case LPFC_INIT_MBX_CMDS:
174         case LPFC_LINK_DOWN:
175         case LPFC_HBA_ERROR:
176                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
177                 break;
178         case LPFC_LINK_UP:
179         case LPFC_CLEAR_LA:
180         case LPFC_HBA_READY:
181                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
182
183                 switch (vport->port_state) {
184                         len += snprintf(buf + len, PAGE_SIZE-len,
185                                         "initializing\n");
186                         break;
187                 case LPFC_LOCAL_CFG_LINK:
188                         len += snprintf(buf + len, PAGE_SIZE-len,
189                                         "Configuring Link\n");
190                         break;
191                 case LPFC_FDISC:
192                 case LPFC_FLOGI:
193                 case LPFC_FABRIC_CFG_LINK:
194                 case LPFC_NS_REG:
195                 case LPFC_NS_QRY:
196                 case LPFC_BUILD_DISC_LIST:
197                 case LPFC_DISC_AUTH:
198                         len += snprintf(buf + len, PAGE_SIZE - len,
199                                         "Discovery\n");
200                         break;
201                 case LPFC_VPORT_READY:
202                         len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
203                         break;
204
205                 case LPFC_VPORT_FAILED:
206                         len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
207                         break;
208
209                 case LPFC_VPORT_UNKNOWN:
210                         len += snprintf(buf + len, PAGE_SIZE - len,
211                                         "Unknown\n");
212                         break;
213                 }
214
215                 if (phba->fc_topology == TOPOLOGY_LOOP) {
216                         if (vport->fc_flag & FC_PUBLIC_LOOP)
217                                 len += snprintf(buf + len, PAGE_SIZE-len,
218                                                 "   Public Loop\n");
219                         else
220                                 len += snprintf(buf + len, PAGE_SIZE-len,
221                                                 "   Private Loop\n");
222                 } else {
223                         if (vport->fc_flag & FC_FABRIC)
224                                 len += snprintf(buf + len, PAGE_SIZE-len,
225                                                 "   Fabric\n");
226                         else
227                                 len += snprintf(buf + len, PAGE_SIZE-len,
228                                                 "   Point-2-Point\n");
229                 }
230         }
231
232         return len;
233 }
234
235 static ssize_t
236 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
237 {
238         struct Scsi_Host  *shost = class_to_shost(cdev);
239         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
240
241         return snprintf(buf, PAGE_SIZE, "%d\n",
242                         vport->fc_map_cnt + vport->fc_unmap_cnt);
243 }
244
245
246 static int
247 lpfc_issue_lip(struct Scsi_Host *shost)
248 {
249         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
250         struct lpfc_hba   *phba = vport->phba;
251         LPFC_MBOXQ_t *pmboxq;
252         int mbxstatus = MBXERR_ERROR;
253
254         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
255             (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
256             (vport->port_state != LPFC_VPORT_READY))
257                 return -EPERM;
258
259         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
260
261         if (!pmboxq)
262                 return -ENOMEM;
263
264         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
265         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
266         pmboxq->mb.mbxOwner = OWN_HOST;
267
268         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
269
270         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
271                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
272                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
273                                phba->cfg_link_speed);
274                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
275                                                      phba->fc_ratov * 2);
276         }
277
278         lpfc_set_loopback_flag(phba);
279         if (mbxstatus != MBX_TIMEOUT)
280                 mempool_free(pmboxq, phba->mbox_mem_pool);
281
282         if (mbxstatus == MBXERR_ERROR)
283                 return -EIO;
284
285         return 0;
286 }
287
288 static int
289 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
290 {
291         struct completion online_compl;
292         struct lpfc_sli_ring *pring;
293         struct lpfc_sli *psli;
294         int status = 0;
295         int cnt = 0;
296         int i;
297
298         init_completion(&online_compl);
299         lpfc_workq_post_event(phba, &status, &online_compl,
300                               LPFC_EVT_OFFLINE_PREP);
301         wait_for_completion(&online_compl);
302
303         if (status != 0)
304                 return -EIO;
305
306         psli = &phba->sli;
307
308         for (i = 0; i < psli->num_rings; i++) {
309                 pring = &psli->ring[i];
310                 /* The linkdown event takes 30 seconds to timeout. */
311                 while (pring->txcmplq_cnt) {
312                         msleep(10);
313                         if (cnt++ > 3000) {
314                                 lpfc_printf_log(phba,
315                                         KERN_WARNING, LOG_INIT,
316                                         "0466 Outstanding IO when "
317                                         "bringing Adapter offline\n");
318                                 break;
319                         }
320                 }
321         }
322
323         init_completion(&online_compl);
324         lpfc_workq_post_event(phba, &status, &online_compl, type);
325         wait_for_completion(&online_compl);
326
327         if (status != 0)
328                 return -EIO;
329
330         return 0;
331 }
332
333 static int
334 lpfc_selective_reset(struct lpfc_hba *phba)
335 {
336         struct completion online_compl;
337         int status = 0;
338
339         status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
340
341         if (status != 0)
342                 return status;
343
344         init_completion(&online_compl);
345         lpfc_workq_post_event(phba, &status, &online_compl,
346                               LPFC_EVT_ONLINE);
347         wait_for_completion(&online_compl);
348
349         if (status != 0)
350                 return -EIO;
351
352         return 0;
353 }
354
355 static ssize_t
356 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
357 {
358         struct Scsi_Host  *shost = class_to_shost(cdev);
359         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
360         struct lpfc_hba   *phba = vport->phba;
361
362         int status = -EINVAL;
363
364         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
365                 status = lpfc_selective_reset(phba);
366
367         if (status == 0)
368                 return strlen(buf);
369         else
370                 return status;
371 }
372
373 static ssize_t
374 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
375 {
376         struct Scsi_Host  *shost = class_to_shost(cdev);
377         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
378         struct lpfc_hba   *phba = vport->phba;
379
380         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
381 }
382
383 static ssize_t
384 lpfc_board_mode_show(struct class_device *cdev, char *buf)
385 {
386         struct Scsi_Host  *shost = class_to_shost(cdev);
387         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
388         struct lpfc_hba   *phba = vport->phba;
389         char  * state;
390
391         if (phba->link_state == LPFC_HBA_ERROR)
392                 state = "error";
393         else if (phba->link_state == LPFC_WARM_START)
394                 state = "warm start";
395         else if (phba->link_state == LPFC_INIT_START)
396                 state = "offline";
397         else
398                 state = "online";
399
400         return snprintf(buf, PAGE_SIZE, "%s\n", state);
401 }
402
403 static ssize_t
404 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
405 {
406         struct Scsi_Host  *shost = class_to_shost(cdev);
407         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
408         struct lpfc_hba   *phba = vport->phba;
409         struct completion online_compl;
410         int status=0;
411
412         init_completion(&online_compl);
413
414         if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
415                 lpfc_workq_post_event(phba, &status, &online_compl,
416                                       LPFC_EVT_ONLINE);
417                 wait_for_completion(&online_compl);
418         } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
419                 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
420         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
421                 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
422         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
423                 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
424         else
425                 return -EINVAL;
426
427         if (!status)
428                 return strlen(buf);
429         else
430                 return -EIO;
431 }
432
433 int
434 lpfc_get_hba_info(struct lpfc_hba *phba,
435                   uint32_t *mxri, uint32_t *axri,
436                   uint32_t *mrpi, uint32_t *arpi,
437                   uint32_t *mvpi, uint32_t *avpi)
438 {
439         struct lpfc_sli   *psli = &phba->sli;
440         LPFC_MBOXQ_t *pmboxq;
441         MAILBOX_t *pmb;
442         int rc = 0;
443
444         /*
445          * prevent udev from issuing mailbox commands until the port is
446          * configured.
447          */
448         if (phba->link_state < LPFC_LINK_DOWN ||
449             !phba->mbox_mem_pool ||
450             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
451                 return 0;
452
453         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
454                 return 0;
455
456         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
457         if (!pmboxq)
458                 return 0;
459         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
460
461         pmb = &pmboxq->mb;
462         pmb->mbxCommand = MBX_READ_CONFIG;
463         pmb->mbxOwner = OWN_HOST;
464         pmboxq->context1 = NULL;
465
466         if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
467                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
468                 rc = MBX_NOT_FINISHED;
469         else
470                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
471
472         if (rc != MBX_SUCCESS) {
473                 if (rc != MBX_TIMEOUT)
474                         mempool_free(pmboxq, phba->mbox_mem_pool);
475                 return 0;
476         }
477
478         if (mrpi)
479                 *mrpi = pmb->un.varRdConfig.max_rpi;
480         if (arpi)
481                 *arpi = pmb->un.varRdConfig.avail_rpi;
482         if (mxri)
483                 *mxri = pmb->un.varRdConfig.max_xri;
484         if (axri)
485                 *axri = pmb->un.varRdConfig.avail_xri;
486         if (mvpi)
487                 *mvpi = pmb->un.varRdConfig.max_vpi;
488         if (avpi)
489                 *avpi = pmb->un.varRdConfig.avail_vpi;
490
491         mempool_free(pmboxq, phba->mbox_mem_pool);
492         return 1;
493 }
494
495 static ssize_t
496 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
497 {
498         struct Scsi_Host  *shost = class_to_shost(cdev);
499         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
500         struct lpfc_hba   *phba = vport->phba;
501         uint32_t cnt;
502
503         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
504                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
505         return snprintf(buf, PAGE_SIZE, "Unknown\n");
506 }
507
508 static ssize_t
509 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
510 {
511         struct Scsi_Host  *shost = class_to_shost(cdev);
512         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
513         struct lpfc_hba   *phba = vport->phba;
514         uint32_t cnt, acnt;
515
516         if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
517                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
518         return snprintf(buf, PAGE_SIZE, "Unknown\n");
519 }
520
521 static ssize_t
522 lpfc_max_xri_show(struct class_device *cdev, char *buf)
523 {
524         struct Scsi_Host  *shost = class_to_shost(cdev);
525         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
526         struct lpfc_hba   *phba = vport->phba;
527         uint32_t cnt;
528
529         if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
530                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
531         return snprintf(buf, PAGE_SIZE, "Unknown\n");
532 }
533
534 static ssize_t
535 lpfc_used_xri_show(struct class_device *cdev, char *buf)
536 {
537         struct Scsi_Host  *shost = class_to_shost(cdev);
538         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
539         struct lpfc_hba   *phba = vport->phba;
540         uint32_t cnt, acnt;
541
542         if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
543                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
544         return snprintf(buf, PAGE_SIZE, "Unknown\n");
545 }
546
547 static ssize_t
548 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
549 {
550         struct Scsi_Host  *shost = class_to_shost(cdev);
551         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
552         struct lpfc_hba   *phba = vport->phba;
553         uint32_t cnt;
554
555         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
556                 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
557         return snprintf(buf, PAGE_SIZE, "Unknown\n");
558 }
559
560 static ssize_t
561 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
562 {
563         struct Scsi_Host  *shost = class_to_shost(cdev);
564         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
565         struct lpfc_hba   *phba = vport->phba;
566         uint32_t cnt, acnt;
567
568         if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
569                 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
570         return snprintf(buf, PAGE_SIZE, "Unknown\n");
571 }
572
573 static ssize_t
574 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
575 {
576         struct Scsi_Host  *shost = class_to_shost(cdev);
577         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
578         struct lpfc_hba   *phba = vport->phba;
579
580         if (!(phba->max_vpi))
581                 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
582         if (vport->port_type == LPFC_PHYSICAL_PORT)
583                 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
584         return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
585 }
586
587 static ssize_t
588 lpfc_poll_show(struct class_device *cdev, char *buf)
589 {
590         struct Scsi_Host  *shost = class_to_shost(cdev);
591         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
592         struct lpfc_hba   *phba = vport->phba;
593
594         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
595 }
596
597 static ssize_t
598 lpfc_poll_store(struct class_device *cdev, const char *buf,
599                 size_t count)
600 {
601         struct Scsi_Host  *shost = class_to_shost(cdev);
602         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
603         struct lpfc_hba   *phba = vport->phba;
604         uint32_t creg_val;
605         uint32_t old_val;
606         int val=0;
607
608         if (!isdigit(buf[0]))
609                 return -EINVAL;
610
611         if (sscanf(buf, "%i", &val) != 1)
612                 return -EINVAL;
613
614         if ((val & 0x3) != val)
615                 return -EINVAL;
616
617         spin_lock_irq(&phba->hbalock);
618
619         old_val = phba->cfg_poll;
620
621         if (val & ENABLE_FCP_RING_POLLING) {
622                 if ((val & DISABLE_FCP_RING_INT) &&
623                     !(old_val & DISABLE_FCP_RING_INT)) {
624                         creg_val = readl(phba->HCregaddr);
625                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
626                         writel(creg_val, phba->HCregaddr);
627                         readl(phba->HCregaddr); /* flush */
628
629                         lpfc_poll_start_timer(phba);
630                 }
631         } else if (val != 0x0) {
632                 spin_unlock_irq(&phba->hbalock);
633                 return -EINVAL;
634         }
635
636         if (!(val & DISABLE_FCP_RING_INT) &&
637             (old_val & DISABLE_FCP_RING_INT))
638         {
639                 spin_unlock_irq(&phba->hbalock);
640                 del_timer(&phba->fcp_poll_timer);
641                 spin_lock_irq(&phba->hbalock);
642                 creg_val = readl(phba->HCregaddr);
643                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
644                 writel(creg_val, phba->HCregaddr);
645                 readl(phba->HCregaddr); /* flush */
646         }
647
648         phba->cfg_poll = val;
649
650         spin_unlock_irq(&phba->hbalock);
651
652         return strlen(buf);
653 }
654
655 #define lpfc_param_show(attr)   \
656 static ssize_t \
657 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
658 { \
659         struct Scsi_Host  *shost = class_to_shost(cdev);\
660         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
661         struct lpfc_hba   *phba = vport->phba;\
662         int val = 0;\
663         val = phba->cfg_##attr;\
664         return snprintf(buf, PAGE_SIZE, "%d\n",\
665                         phba->cfg_##attr);\
666 }
667
668 #define lpfc_param_hex_show(attr)       \
669 static ssize_t \
670 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
671 { \
672         struct Scsi_Host  *shost = class_to_shost(cdev);\
673         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
674         struct lpfc_hba   *phba = vport->phba;\
675         int val = 0;\
676         val = phba->cfg_##attr;\
677         return snprintf(buf, PAGE_SIZE, "%#x\n",\
678                         phba->cfg_##attr);\
679 }
680
681 #define lpfc_param_init(attr, default, minval, maxval)  \
682 static int \
683 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
684 { \
685         if (val >= minval && val <= maxval) {\
686                 phba->cfg_##attr = val;\
687                 return 0;\
688         }\
689         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
690                         "0449 lpfc_"#attr" attribute cannot be set to %d, "\
691                         "allowed range is ["#minval", "#maxval"]\n", val); \
692         phba->cfg_##attr = default;\
693         return -EINVAL;\
694 }
695
696 #define lpfc_param_set(attr, default, minval, maxval)   \
697 static int \
698 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
699 { \
700         if (val >= minval && val <= maxval) {\
701                 phba->cfg_##attr = val;\
702                 return 0;\
703         }\
704         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
705                         "0450 lpfc_"#attr" attribute cannot be set to %d, "\
706                         "allowed range is ["#minval", "#maxval"]\n", val); \
707         return -EINVAL;\
708 }
709
710 #define lpfc_param_store(attr)  \
711 static ssize_t \
712 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
713 { \
714         struct Scsi_Host  *shost = class_to_shost(cdev);\
715         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
716         struct lpfc_hba   *phba = vport->phba;\
717         int val=0;\
718         if (!isdigit(buf[0]))\
719                 return -EINVAL;\
720         if (sscanf(buf, "%i", &val) != 1)\
721                 return -EINVAL;\
722         if (lpfc_##attr##_set(phba, val) == 0) \
723                 return strlen(buf);\
724         else \
725                 return -EINVAL;\
726 }
727
728 #define lpfc_vport_param_show(attr)     \
729 static ssize_t \
730 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
731 { \
732         struct Scsi_Host  *shost = class_to_shost(cdev);\
733         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
734         int val = 0;\
735         val = vport->cfg_##attr;\
736         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
737 }
738
739 #define lpfc_vport_param_hex_show(attr) \
740 static ssize_t \
741 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
742 { \
743         struct Scsi_Host  *shost = class_to_shost(cdev);\
744         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
745         int val = 0;\
746         val = vport->cfg_##attr;\
747         return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
748 }
749
750 #define lpfc_vport_param_init(attr, default, minval, maxval)    \
751 static int \
752 lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
753 { \
754         if (val >= minval && val <= maxval) {\
755                 vport->cfg_##attr = val;\
756                 return 0;\
757         }\
758         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
759                          "0449 lpfc_"#attr" attribute cannot be set to %d, "\
760                          "allowed range is ["#minval", "#maxval"]\n", val); \
761         vport->cfg_##attr = default;\
762         return -EINVAL;\
763 }
764
765 #define lpfc_vport_param_set(attr, default, minval, maxval)     \
766 static int \
767 lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
768 { \
769         if (val >= minval && val <= maxval) {\
770                 vport->cfg_##attr = val;\
771                 return 0;\
772         }\
773         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
774                          "0450 lpfc_"#attr" attribute cannot be set to %d, "\
775                          "allowed range is ["#minval", "#maxval"]\n", val); \
776         return -EINVAL;\
777 }
778
779 #define lpfc_vport_param_store(attr)    \
780 static ssize_t \
781 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
782 { \
783         struct Scsi_Host  *shost = class_to_shost(cdev);\
784         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
785         int val=0;\
786         if (!isdigit(buf[0]))\
787                 return -EINVAL;\
788         if (sscanf(buf, "%i", &val) != 1)\
789                 return -EINVAL;\
790         if (lpfc_##attr##_set(vport, val) == 0) \
791                 return strlen(buf);\
792         else \
793                 return -EINVAL;\
794 }
795
796
797 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
798 static int lpfc_##name = defval;\
799 module_param(lpfc_##name, int, 0);\
800 MODULE_PARM_DESC(lpfc_##name, desc);\
801 lpfc_param_init(name, defval, minval, maxval)
802
803 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
804 static int lpfc_##name = defval;\
805 module_param(lpfc_##name, int, 0);\
806 MODULE_PARM_DESC(lpfc_##name, desc);\
807 lpfc_param_show(name)\
808 lpfc_param_init(name, defval, minval, maxval)\
809 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
810
811 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
812 static int lpfc_##name = defval;\
813 module_param(lpfc_##name, int, 0);\
814 MODULE_PARM_DESC(lpfc_##name, desc);\
815 lpfc_param_show(name)\
816 lpfc_param_init(name, defval, minval, maxval)\
817 lpfc_param_set(name, defval, minval, maxval)\
818 lpfc_param_store(name)\
819 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
820                          lpfc_##name##_show, lpfc_##name##_store)
821
822 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
823 static int lpfc_##name = defval;\
824 module_param(lpfc_##name, int, 0);\
825 MODULE_PARM_DESC(lpfc_##name, desc);\
826 lpfc_param_hex_show(name)\
827 lpfc_param_init(name, defval, minval, maxval)\
828 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
829
830 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
831 static int lpfc_##name = defval;\
832 module_param(lpfc_##name, int, 0);\
833 MODULE_PARM_DESC(lpfc_##name, desc);\
834 lpfc_param_hex_show(name)\
835 lpfc_param_init(name, defval, minval, maxval)\
836 lpfc_param_set(name, defval, minval, maxval)\
837 lpfc_param_store(name)\
838 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
839                          lpfc_##name##_show, lpfc_##name##_store)
840
841 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
842 static int lpfc_##name = defval;\
843 module_param(lpfc_##name, int, 0);\
844 MODULE_PARM_DESC(lpfc_##name, desc);\
845 lpfc_vport_param_init(name, defval, minval, maxval)
846
847 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
848 static int lpfc_##name = defval;\
849 module_param(lpfc_##name, int, 0);\
850 MODULE_PARM_DESC(lpfc_##name, desc);\
851 lpfc_vport_param_show(name)\
852 lpfc_vport_param_init(name, defval, minval, maxval)\
853 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
854
855 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
856 static int lpfc_##name = defval;\
857 module_param(lpfc_##name, int, 0);\
858 MODULE_PARM_DESC(lpfc_##name, desc);\
859 lpfc_vport_param_show(name)\
860 lpfc_vport_param_init(name, defval, minval, maxval)\
861 lpfc_vport_param_set(name, defval, minval, maxval)\
862 lpfc_vport_param_store(name)\
863 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
864                          lpfc_##name##_show, lpfc_##name##_store)
865
866 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
867 static int lpfc_##name = defval;\
868 module_param(lpfc_##name, int, 0);\
869 MODULE_PARM_DESC(lpfc_##name, desc);\
870 lpfc_vport_param_hex_show(name)\
871 lpfc_vport_param_init(name, defval, minval, maxval)\
872 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
873
874 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
875 static int lpfc_##name = defval;\
876 module_param(lpfc_##name, int, 0);\
877 MODULE_PARM_DESC(lpfc_##name, desc);\
878 lpfc_vport_param_hex_show(name)\
879 lpfc_vport_param_init(name, defval, minval, maxval)\
880 lpfc_vport_param_set(name, defval, minval, maxval)\
881 lpfc_vport_param_store(name)\
882 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
883                          lpfc_##name##_show, lpfc_##name##_store)
884
885 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
886 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
887 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
888 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
889 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
890 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
891 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
892 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
893 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
894 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
895                                         lpfc_option_rom_version_show, NULL);
896 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
897                                         lpfc_num_discovered_ports_show, NULL);
898 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
899 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
900                          NULL);
901 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
902                          lpfc_board_mode_show, lpfc_board_mode_store);
903 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
904 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
905 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
906 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
907 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
908 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
909 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
910 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
911
912
913 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
914
915 static ssize_t
916 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
917                                 size_t count)
918 {
919         struct Scsi_Host  *shost = class_to_shost(cdev);
920         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
921         struct lpfc_hba   *phba = vport->phba;
922         unsigned int cnt = count;
923
924         /*
925          * We're doing a simple sanity check for soft_wwpn setting.
926          * We require that the user write a specific key to enable
927          * the soft_wwpn attribute to be settable. Once the attribute
928          * is written, the enable key resets. If further updates are
929          * desired, the key must be written again to re-enable the
930          * attribute.
931          *
932          * The "key" is not secret - it is a hardcoded string shown
933          * here. The intent is to protect against the random user or
934          * application that is just writing attributes.
935          */
936
937         /* count may include a LF at end of string */
938         if (buf[cnt-1] == '\n')
939                 cnt--;
940
941         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
942             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
943                 return -EINVAL;
944
945         phba->soft_wwn_enable = 1;
946         return count;
947 }
948 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
949                                 lpfc_soft_wwn_enable_store);
950
951 static ssize_t
952 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
953 {
954         struct Scsi_Host  *shost = class_to_shost(cdev);
955         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
956         struct lpfc_hba   *phba = vport->phba;
957
958         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
959                         (unsigned long long)phba->cfg_soft_wwpn);
960 }
961
962
963 static ssize_t
964 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
965 {
966         struct Scsi_Host  *shost = class_to_shost(cdev);
967         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
968         struct lpfc_hba   *phba = vport->phba;
969         struct completion online_compl;
970         int stat1=0, stat2=0;
971         unsigned int i, j, cnt=count;
972         u8 wwpn[8];
973
974         /* count may include a LF at end of string */
975         if (buf[cnt-1] == '\n')
976                 cnt--;
977
978         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
979             ((cnt == 17) && (*buf++ != 'x')) ||
980             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
981                 return -EINVAL;
982
983         phba->soft_wwn_enable = 0;
984
985         memset(wwpn, 0, sizeof(wwpn));
986
987         /* Validate and store the new name */
988         for (i=0, j=0; i < 16; i++) {
989                 if ((*buf >= 'a') && (*buf <= 'f'))
990                         j = ((j << 4) | ((*buf++ -'a') + 10));
991                 else if ((*buf >= 'A') && (*buf <= 'F'))
992                         j = ((j << 4) | ((*buf++ -'A') + 10));
993                 else if ((*buf >= '0') && (*buf <= '9'))
994                         j = ((j << 4) | (*buf++ -'0'));
995                 else
996                         return -EINVAL;
997                 if (i % 2) {
998                         wwpn[i/2] = j & 0xff;
999                         j = 0;
1000                 }
1001         }
1002         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1003         fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1004         if (phba->cfg_soft_wwnn)
1005                 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1006
1007         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1008                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1009
1010         stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1011         if (stat1)
1012                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1013                                 "0463 lpfc_soft_wwpn attribute set failed to "
1014                                 "reinit adapter - %d\n", stat1);
1015         init_completion(&online_compl);
1016         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1017         wait_for_completion(&online_compl);
1018         if (stat2)
1019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1020                                 "0464 lpfc_soft_wwpn attribute set failed to "
1021                                 "reinit adapter - %d\n", stat2);
1022         return (stat1 || stat2) ? -EIO : count;
1023 }
1024 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1025                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1026
1027 static ssize_t
1028 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
1029 {
1030         struct Scsi_Host *host = class_to_shost(cdev);
1031         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1032         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1033                         (unsigned long long)phba->cfg_soft_wwnn);
1034 }
1035
1036
1037 static ssize_t
1038 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
1039 {
1040         struct Scsi_Host *host = class_to_shost(cdev);
1041         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1042         unsigned int i, j, cnt=count;
1043         u8 wwnn[8];
1044
1045         /* count may include a LF at end of string */
1046         if (buf[cnt-1] == '\n')
1047                 cnt--;
1048
1049         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1050             ((cnt == 17) && (*buf++ != 'x')) ||
1051             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1052                 return -EINVAL;
1053
1054         /*
1055          * Allow wwnn to be set many times, as long as the enable is set.
1056          * However, once the wwpn is set, everything locks.
1057          */
1058
1059         memset(wwnn, 0, sizeof(wwnn));
1060
1061         /* Validate and store the new name */
1062         for (i=0, j=0; i < 16; i++) {
1063                 if ((*buf >= 'a') && (*buf <= 'f'))
1064                         j = ((j << 4) | ((*buf++ -'a') + 10));
1065                 else if ((*buf >= 'A') && (*buf <= 'F'))
1066                         j = ((j << 4) | ((*buf++ -'A') + 10));
1067                 else if ((*buf >= '0') && (*buf <= '9'))
1068                         j = ((j << 4) | (*buf++ -'0'));
1069                 else
1070                         return -EINVAL;
1071                 if (i % 2) {
1072                         wwnn[i/2] = j & 0xff;
1073                         j = 0;
1074                 }
1075         }
1076         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1077
1078         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1079                    "lpfc%d: soft_wwnn set. Value will take effect upon "
1080                    "setting of the soft_wwpn\n", phba->brd_no);
1081
1082         return count;
1083 }
1084 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1085                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1086
1087
1088 static int lpfc_poll = 0;
1089 module_param(lpfc_poll, int, 0);
1090 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1091                  " 0 - none,"
1092                  " 1 - poll with interrupts enabled"
1093                  " 3 - poll and disable FCP ring interrupts");
1094
1095 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1096                          lpfc_poll_show, lpfc_poll_store);
1097
1098 int  lpfc_sli_mode = 0;
1099 module_param(lpfc_sli_mode, int, 0);
1100 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1101                  " 0 - auto (SLI-3 if supported),"
1102                  " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1103                  " 3 - select SLI-3");
1104
1105 LPFC_ATTR_R(enable_npiv, 0, 0, 1, "Enable NPIV functionality");
1106
1107 /*
1108 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1109 # until the timer expires. Value range is [0,255]. Default value is 30.
1110 */
1111 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1112 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1113 module_param(lpfc_nodev_tmo, int, 0);
1114 MODULE_PARM_DESC(lpfc_nodev_tmo,
1115                  "Seconds driver will hold I/O waiting "
1116                  "for a device to come back");
1117 static ssize_t
1118 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1119 {
1120         struct Scsi_Host  *shost = class_to_shost(cdev);
1121         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1122         int val = 0;
1123         val = vport->cfg_devloss_tmo;
1124         return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1125 }
1126
1127 static int
1128 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1129 {
1130         if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1131                 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1132                 if (val != LPFC_DEF_DEVLOSS_TMO)
1133                         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1134                                          "0402 Ignoring nodev_tmo module "
1135                                          "parameter because devloss_tmo is "
1136                                          "set.\n");
1137                 return 0;
1138         }
1139
1140         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1141                 vport->cfg_nodev_tmo = val;
1142                 vport->cfg_devloss_tmo = val;
1143                 return 0;
1144         }
1145         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1146                          "0400 lpfc_nodev_tmo attribute cannot be set to"
1147                          " %d, allowed range is [%d, %d]\n",
1148                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1149         vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1150         return -EINVAL;
1151 }
1152
1153 static void
1154 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1155 {
1156         struct lpfc_vport **vports;
1157         struct Scsi_Host  *shost;
1158         struct lpfc_nodelist  *ndlp;
1159         int i;
1160
1161         vports = lpfc_create_vport_work_array(vport->phba);
1162         if (vports != NULL)
1163                 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) {
1164                         shost = lpfc_shost_from_vport(vports[i]);
1165                         spin_lock_irq(shost->host_lock);
1166                         list_for_each_entry(ndlp, &vports[i]->fc_nodes,
1167                                             nlp_listp)
1168                         if (ndlp->rport)
1169                                 ndlp->rport->dev_loss_tmo =
1170                                                 vport->cfg_devloss_tmo;
1171                         spin_unlock_irq(shost->host_lock);
1172                 }
1173         lpfc_destroy_vport_work_array(vports);
1174 }
1175
1176 static int
1177 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1178 {
1179         if (vport->dev_loss_tmo_changed ||
1180             (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1181                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1182                                  "0401 Ignoring change to nodev_tmo "
1183                                  "because devloss_tmo is set.\n");
1184                 return 0;
1185         }
1186         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1187                 vport->cfg_nodev_tmo = val;
1188                 vport->cfg_devloss_tmo = val;
1189                 lpfc_update_rport_devloss_tmo(vport);
1190                 return 0;
1191         }
1192         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1193                          "0403 lpfc_nodev_tmo attribute cannot be set to"
1194                          "%d, allowed range is [%d, %d]\n",
1195                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1196         return -EINVAL;
1197 }
1198
1199 lpfc_vport_param_store(nodev_tmo)
1200
1201 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1202                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1203
1204 /*
1205 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1206 # disappear until the timer expires. Value range is [0,255]. Default
1207 # value is 30.
1208 */
1209 module_param(lpfc_devloss_tmo, int, 0);
1210 MODULE_PARM_DESC(lpfc_devloss_tmo,
1211                  "Seconds driver will hold I/O waiting "
1212                  "for a device to come back");
1213 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1214                       LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1215 lpfc_vport_param_show(devloss_tmo)
1216 static int
1217 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1218 {
1219         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1220                 vport->cfg_nodev_tmo = val;
1221                 vport->cfg_devloss_tmo = val;
1222                 vport->dev_loss_tmo_changed = 1;
1223                 lpfc_update_rport_devloss_tmo(vport);
1224                 return 0;
1225         }
1226
1227         lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1228                          "0404 lpfc_devloss_tmo attribute cannot be set to"
1229                          " %d, allowed range is [%d, %d]\n",
1230                          val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1231         return -EINVAL;
1232 }
1233
1234 lpfc_vport_param_store(devloss_tmo)
1235 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1236         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1237
1238 /*
1239 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1240 # deluged with LOTS of information.
1241 # You can set a bit mask to record specific types of verbose messages:
1242 #
1243 # LOG_ELS                       0x1        ELS events
1244 # LOG_DISCOVERY                 0x2        Link discovery events
1245 # LOG_MBOX                      0x4        Mailbox events
1246 # LOG_INIT                      0x8        Initialization events
1247 # LOG_LINK_EVENT                0x10       Link events
1248 # LOG_FCP                       0x40       FCP traffic history
1249 # LOG_NODE                      0x80       Node table events
1250 # LOG_MISC                      0x400      Miscellaneous events
1251 # LOG_SLI                       0x800      SLI events
1252 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
1253 # LOG_LIBDFC                    0x2000     LIBDFC events
1254 # LOG_ALL_MSG                   0xffff     LOG all messages
1255 */
1256 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff,
1257                        "Verbose logging bit-mask");
1258
1259 /*
1260 # lun_queue_depth:  This parameter is used to limit the number of outstanding
1261 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1262 */
1263 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
1264                   "Max number of FCP commands we can queue to a specific LUN");
1265
1266 /*
1267 # hba_queue_depth:  This parameter is used to limit the number of outstanding
1268 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1269 # value is greater than the maximum number of exchanges supported by the HBA,
1270 # then maximum number of exchanges supported by the HBA is used to determine
1271 # the hba_queue_depth.
1272 */
1273 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1274             "Max number of FCP commands we can queue to a lpfc HBA");
1275
1276 /*
1277 # peer_port_login:  This parameter allows/prevents logins
1278 # between peer ports hosted on the same physical port.
1279 # When this parameter is set 0 peer ports of same physical port
1280 # are not allowed to login to each other.
1281 # When this parameter is set 1 peer ports of same physical port
1282 # are allowed to login to each other.
1283 # Default value of this parameter is 0.
1284 */
1285 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
1286                   "Allow peer ports on the same physical port to login to each "
1287                   "other.");
1288
1289 /*
1290 # restrict_login:  This parameter allows/prevents logins
1291 # between Virtual Ports and remote initiators.
1292 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1293 # other initiators and will attempt to PLOGI all remote ports.
1294 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1295 # remote ports and will not attempt to PLOGI to other initiators.
1296 # This parameter does not restrict to the physical port.
1297 # This parameter does not restrict logins to Fabric resident remote ports.
1298 # Default value of this parameter is 1.
1299 */
1300 static int lpfc_restrict_login = 1;
1301 module_param(lpfc_restrict_login, int, 0);
1302 MODULE_PARM_DESC(lpfc_restrict_login,
1303                  "Restrict virtual ports login to remote initiators.");
1304 lpfc_vport_param_show(restrict_login);
1305
1306 static int
1307 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1308 {
1309         if (val < 0 || val > 1) {
1310                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1311                                  "0449 lpfc_restrict_login attribute cannot "
1312                                  "be set to %d, allowed range is [0, 1]\n",
1313                                  val);
1314                 vport->cfg_restrict_login = 1;
1315                 return -EINVAL;
1316         }
1317         if (vport->port_type == LPFC_PHYSICAL_PORT) {
1318                 vport->cfg_restrict_login = 0;
1319                 return 0;
1320         }
1321         vport->cfg_restrict_login = val;
1322         return 0;
1323 }
1324
1325 static int
1326 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1327 {
1328         if (val < 0 || val > 1) {
1329                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1330                                  "0450 lpfc_restrict_login attribute cannot "
1331                                  "be set to %d, allowed range is [0, 1]\n",
1332                                  val);
1333                 vport->cfg_restrict_login = 1;
1334                 return -EINVAL;
1335         }
1336         if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
1337                 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1338                                  "0468 lpfc_restrict_login must be 0 for "
1339                                  "Physical ports.\n");
1340                 vport->cfg_restrict_login = 0;
1341                 return 0;
1342         }
1343         vport->cfg_restrict_login = val;
1344         return 0;
1345 }
1346 lpfc_vport_param_store(restrict_login);
1347 static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
1348                          lpfc_restrict_login_show, lpfc_restrict_login_store);
1349
1350 /*
1351 # Some disk devices have a "select ID" or "select Target" capability.
1352 # From a protocol standpoint "select ID" usually means select the
1353 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
1354 # annex" which contains a table that maps a "select ID" (a number
1355 # between 0 and 7F) to an ALPA.  By default, for compatibility with
1356 # older drivers, the lpfc driver scans this table from low ALPA to high
1357 # ALPA.
1358 #
1359 # Turning on the scan-down variable (on  = 1, off = 0) will
1360 # cause the lpfc driver to use an inverted table, effectively
1361 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1362 #
1363 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1364 # and will not work across a fabric. Also this parameter will take
1365 # effect only in the case when ALPA map is not available.)
1366 */
1367 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1368                   "Start scanning for devices from highest ALPA to lowest");
1369
1370 /*
1371 # lpfc_topology:  link topology for init link
1372 #            0x0  = attempt loop mode then point-to-point
1373 #            0x01 = internal loopback mode
1374 #            0x02 = attempt point-to-point mode only
1375 #            0x04 = attempt loop mode only
1376 #            0x06 = attempt point-to-point mode then loop
1377 # Set point-to-point mode if you want to run as an N_Port.
1378 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1379 # Default value is 0.
1380 */
1381 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1382
1383 /*
1384 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1385 # connection.
1386 #       0  = auto select (default)
1387 #       1  = 1 Gigabaud
1388 #       2  = 2 Gigabaud
1389 #       4  = 4 Gigabaud
1390 #       8  = 8 Gigabaud
1391 # Value range is [0,8]. Default value is 0.
1392 */
1393 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1394
1395 /*
1396 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
1397 # Value range is [2,3]. Default value is 3.
1398 */
1399 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
1400                   "Select Fibre Channel class of service for FCP sequences");
1401
1402 /*
1403 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1404 # is [0,1]. Default value is 0.
1405 */
1406 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1407                    "Use ADISC on rediscovery to authenticate FCP devices");
1408
1409 /*
1410 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1411 # range is [0,1]. Default value is 0.
1412 */
1413 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1414
1415 /*
1416 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1417 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1418 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1419 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1420 # cr_delay is set to 0.
1421 */
1422 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1423                 "interrupt response is generated");
1424
1425 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1426                 "interrupt response is generated");
1427
1428 /*
1429 # lpfc_multi_ring_support:  Determines how many rings to spread available
1430 # cmd/rsp IOCB entries across.
1431 # Value range is [1,2]. Default value is 1.
1432 */
1433 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1434                 "SLI rings to spread IOCB entries across");
1435
1436 /*
1437 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
1438 # identifies what rctl value to configure the additional ring for.
1439 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1440 */
1441 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1442              255, "Identifies RCTL for additional ring configuration");
1443
1444 /*
1445 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
1446 # identifies what type value to configure the additional ring for.
1447 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1448 */
1449 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1450              255, "Identifies TYPE for additional ring configuration");
1451
1452 /*
1453 # lpfc_fdmi_on: controls FDMI support.
1454 #       0 = no FDMI support
1455 #       1 = support FDMI without attribute of hostname
1456 #       2 = support FDMI with attribute of hostname
1457 # Value range [0,2]. Default value is 0.
1458 */
1459 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1460
1461 /*
1462 # Specifies the maximum number of ELS cmds we can have outstanding (for
1463 # discovery). Value range is [1,64]. Default value = 32.
1464 */
1465 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1466                  "during discovery");
1467
1468 /*
1469 # lpfc_max_luns: maximum allowed LUN.
1470 # Value range is [0,65535]. Default value is 255.
1471 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1472 */
1473 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
1474
1475 /*
1476 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1477 # Value range is [1,255], default value is 10.
1478 */
1479 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1480              "Milliseconds driver will wait between polling FCP ring");
1481
1482 /*
1483 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1484 #               support this feature
1485 #       0  = MSI disabled (default)
1486 #       1  = MSI enabled
1487 # Value range is [0,1]. Default value is 0.
1488 */
1489 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1490
1491
1492
1493 struct class_device_attribute *lpfc_hba_attrs[] = {
1494         &class_device_attr_info,
1495         &class_device_attr_serialnum,
1496         &class_device_attr_modeldesc,
1497         &class_device_attr_modelname,
1498         &class_device_attr_programtype,
1499         &class_device_attr_portnum,
1500         &class_device_attr_fwrev,
1501         &class_device_attr_hdw,
1502         &class_device_attr_option_rom_version,
1503         &class_device_attr_state,
1504         &class_device_attr_num_discovered_ports,
1505         &class_device_attr_lpfc_drvr_version,
1506         &class_device_attr_lpfc_log_verbose,
1507         &class_device_attr_lpfc_lun_queue_depth,
1508         &class_device_attr_lpfc_hba_queue_depth,
1509         &class_device_attr_lpfc_peer_port_login,
1510         &class_device_attr_lpfc_nodev_tmo,
1511         &class_device_attr_lpfc_devloss_tmo,
1512         &class_device_attr_lpfc_fcp_class,
1513         &class_device_attr_lpfc_use_adisc,
1514         &class_device_attr_lpfc_ack0,
1515         &class_device_attr_lpfc_topology,
1516         &class_device_attr_lpfc_scan_down,
1517         &class_device_attr_lpfc_link_speed,
1518         &class_device_attr_lpfc_cr_delay,
1519         &class_device_attr_lpfc_cr_count,
1520         &class_device_attr_lpfc_multi_ring_support,
1521         &class_device_attr_lpfc_multi_ring_rctl,
1522         &class_device_attr_lpfc_multi_ring_type,
1523         &class_device_attr_lpfc_fdmi_on,
1524         &class_device_attr_lpfc_max_luns,
1525         &class_device_attr_lpfc_enable_npiv,
1526         &class_device_attr_nport_evt_cnt,
1527         &class_device_attr_board_mode,
1528         &class_device_attr_max_vpi,
1529         &class_device_attr_used_vpi,
1530         &class_device_attr_max_rpi,
1531         &class_device_attr_used_rpi,
1532         &class_device_attr_max_xri,
1533         &class_device_attr_used_xri,
1534         &class_device_attr_npiv_info,
1535         &class_device_attr_issue_reset,
1536         &class_device_attr_lpfc_poll,
1537         &class_device_attr_lpfc_poll_tmo,
1538         &class_device_attr_lpfc_use_msi,
1539         &class_device_attr_lpfc_soft_wwnn,
1540         &class_device_attr_lpfc_soft_wwpn,
1541         &class_device_attr_lpfc_soft_wwn_enable,
1542         NULL,
1543 };
1544
1545 struct class_device_attribute *lpfc_vport_attrs[] = {
1546         &class_device_attr_info,
1547         &class_device_attr_state,
1548         &class_device_attr_num_discovered_ports,
1549         &class_device_attr_lpfc_drvr_version,
1550
1551         &class_device_attr_lpfc_log_verbose,
1552         &class_device_attr_lpfc_lun_queue_depth,
1553         &class_device_attr_lpfc_nodev_tmo,
1554         &class_device_attr_lpfc_devloss_tmo,
1555         &class_device_attr_lpfc_hba_queue_depth,
1556         &class_device_attr_lpfc_peer_port_login,
1557         &class_device_attr_lpfc_restrict_login,
1558         &class_device_attr_lpfc_fcp_class,
1559         &class_device_attr_lpfc_use_adisc,
1560         &class_device_attr_lpfc_fdmi_on,
1561         &class_device_attr_lpfc_max_luns,
1562         &class_device_attr_nport_evt_cnt,
1563         &class_device_attr_npiv_info,
1564         NULL,
1565 };
1566
1567 static ssize_t
1568 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1569                    char *buf, loff_t off, size_t count)
1570 {
1571         size_t buf_off;
1572         struct class_device *cdev = container_of(kobj, struct class_device,
1573                                                  kobj);
1574         struct Scsi_Host  *shost = class_to_shost(cdev);
1575         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1576         struct lpfc_hba   *phba = vport->phba;
1577
1578         if ((off + count) > FF_REG_AREA_SIZE)
1579                 return -ERANGE;
1580
1581         if (count == 0) return 0;
1582
1583         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1584                 return -EINVAL;
1585
1586         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1587                 return -EPERM;
1588         }
1589
1590         spin_lock_irq(&phba->hbalock);
1591         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1592                 writel(*((uint32_t *)(buf + buf_off)),
1593                        phba->ctrl_regs_memmap_p + off + buf_off);
1594
1595         spin_unlock_irq(&phba->hbalock);
1596
1597         return count;
1598 }
1599
1600 static ssize_t
1601 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1602                   char *buf, loff_t off, size_t count)
1603 {
1604         size_t buf_off;
1605         uint32_t * tmp_ptr;
1606         struct class_device *cdev = container_of(kobj, struct class_device,
1607                                                  kobj);
1608         struct Scsi_Host  *shost = class_to_shost(cdev);
1609         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1610         struct lpfc_hba   *phba = vport->phba;
1611
1612         if (off > FF_REG_AREA_SIZE)
1613                 return -ERANGE;
1614
1615         if ((off + count) > FF_REG_AREA_SIZE)
1616                 count = FF_REG_AREA_SIZE - off;
1617
1618         if (count == 0) return 0;
1619
1620         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1621                 return -EINVAL;
1622
1623         spin_lock_irq(&phba->hbalock);
1624
1625         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1626                 tmp_ptr = (uint32_t *)(buf + buf_off);
1627                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1628         }
1629
1630         spin_unlock_irq(&phba->hbalock);
1631
1632         return count;
1633 }
1634
1635 static struct bin_attribute sysfs_ctlreg_attr = {
1636         .attr = {
1637                 .name = "ctlreg",
1638                 .mode = S_IRUSR | S_IWUSR,
1639         },
1640         .size = 256,
1641         .read = sysfs_ctlreg_read,
1642         .write = sysfs_ctlreg_write,
1643 };
1644
1645
1646 static void
1647 sysfs_mbox_idle(struct lpfc_hba *phba)
1648 {
1649         phba->sysfs_mbox.state = SMBOX_IDLE;
1650         phba->sysfs_mbox.offset = 0;
1651
1652         if (phba->sysfs_mbox.mbox) {
1653                 mempool_free(phba->sysfs_mbox.mbox,
1654                              phba->mbox_mem_pool);
1655                 phba->sysfs_mbox.mbox = NULL;
1656         }
1657 }
1658
1659 static ssize_t
1660 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1661                  char *buf, loff_t off, size_t count)
1662 {
1663         struct class_device *cdev = container_of(kobj, struct class_device,
1664                                                  kobj);
1665         struct Scsi_Host  *shost = class_to_shost(cdev);
1666         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1667         struct lpfc_hba   *phba = vport->phba;
1668         struct lpfcMboxq  *mbox = NULL;
1669
1670         if ((count + off) > MAILBOX_CMD_SIZE)
1671                 return -ERANGE;
1672
1673         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1674                 return -EINVAL;
1675
1676         if (count == 0)
1677                 return 0;
1678
1679         if (off == 0) {
1680                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1681                 if (!mbox)
1682                         return -ENOMEM;
1683                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1684         }
1685
1686         spin_lock_irq(&phba->hbalock);
1687
1688         if (off == 0) {
1689                 if (phba->sysfs_mbox.mbox)
1690                         mempool_free(mbox, phba->mbox_mem_pool);
1691                 else
1692                         phba->sysfs_mbox.mbox = mbox;
1693                 phba->sysfs_mbox.state = SMBOX_WRITING;
1694         } else {
1695                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1696                     phba->sysfs_mbox.offset != off           ||
1697                     phba->sysfs_mbox.mbox   == NULL) {
1698                         sysfs_mbox_idle(phba);
1699                         spin_unlock_irq(&phba->hbalock);
1700                         return -EAGAIN;
1701                 }
1702         }
1703
1704         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1705                buf, count);
1706
1707         phba->sysfs_mbox.offset = off + count;
1708
1709         spin_unlock_irq(&phba->hbalock);
1710
1711         return count;
1712 }
1713
1714 static ssize_t
1715 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1716                 char *buf, loff_t off, size_t count)
1717 {
1718         struct class_device *cdev = container_of(kobj, struct class_device,
1719                                                  kobj);
1720         struct Scsi_Host  *shost = class_to_shost(cdev);
1721         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1722         struct lpfc_hba   *phba = vport->phba;
1723         int rc;
1724
1725         if (off > MAILBOX_CMD_SIZE)
1726                 return -ERANGE;
1727
1728         if ((count + off) > MAILBOX_CMD_SIZE)
1729                 count = MAILBOX_CMD_SIZE - off;
1730
1731         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1732                 return -EINVAL;
1733
1734         if (off && count == 0)
1735                 return 0;
1736
1737         spin_lock_irq(&phba->hbalock);
1738
1739         if (off == 0 &&
1740             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1741             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1742
1743                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1744                         /* Offline only */
1745                 case MBX_WRITE_NV:
1746                 case MBX_INIT_LINK:
1747                 case MBX_DOWN_LINK:
1748                 case MBX_CONFIG_LINK:
1749                 case MBX_CONFIG_RING:
1750                 case MBX_RESET_RING:
1751                 case MBX_UNREG_LOGIN:
1752                 case MBX_CLEAR_LA:
1753                 case MBX_DUMP_CONTEXT:
1754                 case MBX_RUN_DIAGS:
1755                 case MBX_RESTART:
1756                 case MBX_FLASH_WR_ULA:
1757                 case MBX_SET_MASK:
1758                 case MBX_SET_SLIM:
1759                 case MBX_SET_DEBUG:
1760                         if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1761                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1762                                        "is illegal in on-line state\n",
1763                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1764                                 sysfs_mbox_idle(phba);
1765                                 spin_unlock_irq(&phba->hbalock);
1766                                 return -EPERM;
1767                         }
1768                 case MBX_LOAD_SM:
1769                 case MBX_READ_NV:
1770                 case MBX_READ_CONFIG:
1771                 case MBX_READ_RCONFIG:
1772                 case MBX_READ_STATUS:
1773                 case MBX_READ_XRI:
1774                 case MBX_READ_REV:
1775                 case MBX_READ_LNK_STAT:
1776                 case MBX_DUMP_MEMORY:
1777                 case MBX_DOWN_LOAD:
1778                 case MBX_UPDATE_CFG:
1779                 case MBX_KILL_BOARD:
1780                 case MBX_LOAD_AREA:
1781                 case MBX_LOAD_EXP_ROM:
1782                 case MBX_BEACON:
1783                 case MBX_DEL_LD_ENTRY:
1784                         break;
1785                 case MBX_READ_SPARM64:
1786                 case MBX_READ_LA:
1787                 case MBX_READ_LA64:
1788                 case MBX_REG_LOGIN:
1789                 case MBX_REG_LOGIN64:
1790                 case MBX_CONFIG_PORT:
1791                 case MBX_RUN_BIU_DIAG:
1792                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1793                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1794                         sysfs_mbox_idle(phba);
1795                         spin_unlock_irq(&phba->hbalock);
1796                         return -EPERM;
1797                 default:
1798                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1799                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1800                         sysfs_mbox_idle(phba);
1801                         spin_unlock_irq(&phba->hbalock);
1802                         return -EPERM;
1803                 }
1804
1805                 phba->sysfs_mbox.mbox->vport = vport;
1806
1807                 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1808                         sysfs_mbox_idle(phba);
1809                         spin_unlock_irq(&phba->hbalock);
1810                         return  -EAGAIN;
1811                 }
1812
1813                 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1814                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1815
1816                         spin_unlock_irq(&phba->hbalock);
1817                         rc = lpfc_sli_issue_mbox (phba,
1818                                                   phba->sysfs_mbox.mbox,
1819                                                   MBX_POLL);
1820                         spin_lock_irq(&phba->hbalock);
1821
1822                 } else {
1823                         spin_unlock_irq(&phba->hbalock);
1824                         rc = lpfc_sli_issue_mbox_wait (phba,
1825                                                        phba->sysfs_mbox.mbox,
1826                                 lpfc_mbox_tmo_val(phba,
1827                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1828                         spin_lock_irq(&phba->hbalock);
1829                 }
1830
1831                 if (rc != MBX_SUCCESS) {
1832                         if (rc == MBX_TIMEOUT) {
1833                                 phba->sysfs_mbox.mbox = NULL;
1834                         }
1835                         sysfs_mbox_idle(phba);
1836                         spin_unlock_irq(&phba->hbalock);
1837                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1838                 }
1839                 phba->sysfs_mbox.state = SMBOX_READING;
1840         }
1841         else if (phba->sysfs_mbox.offset != off ||
1842                  phba->sysfs_mbox.state  != SMBOX_READING) {
1843                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1844                 sysfs_mbox_idle(phba);
1845                 spin_unlock_irq(&phba->hbalock);
1846                 return -EAGAIN;
1847         }
1848
1849         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1850
1851         phba->sysfs_mbox.offset = off + count;
1852
1853         if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1854                 sysfs_mbox_idle(phba);
1855
1856         spin_unlock_irq(&phba->hbalock);
1857
1858         return count;
1859 }
1860
1861 static struct bin_attribute sysfs_mbox_attr = {
1862         .attr = {
1863                 .name = "mbox",
1864                 .mode = S_IRUSR | S_IWUSR,
1865         },
1866         .size = MAILBOX_CMD_SIZE,
1867         .read = sysfs_mbox_read,
1868         .write = sysfs_mbox_write,
1869 };
1870
1871 int
1872 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1873 {
1874         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1875         int error;
1876
1877         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1878                                       &sysfs_ctlreg_attr);
1879         if (error)
1880                 goto out;
1881
1882         error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1883                                       &sysfs_mbox_attr);
1884         if (error)
1885                 goto out_remove_ctlreg_attr;
1886
1887         return 0;
1888 out_remove_ctlreg_attr:
1889         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1890 out:
1891         return error;
1892 }
1893
1894 void
1895 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1896 {
1897         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1898
1899         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1900         sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1901 }
1902
1903
1904 /*
1905  * Dynamic FC Host Attributes Support
1906  */
1907
1908 static void
1909 lpfc_get_host_port_id(struct Scsi_Host *shost)
1910 {
1911         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1912
1913         /* note: fc_myDID already in cpu endianness */
1914         fc_host_port_id(shost) = vport->fc_myDID;
1915 }
1916
1917 static void
1918 lpfc_get_host_port_type(struct Scsi_Host *shost)
1919 {
1920         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1921         struct lpfc_hba   *phba = vport->phba;
1922
1923         spin_lock_irq(shost->host_lock);
1924
1925         if (vport->port_type == LPFC_NPIV_PORT) {
1926                 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1927         } else if (lpfc_is_link_up(phba)) {
1928                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1929                         if (vport->fc_flag & FC_PUBLIC_LOOP)
1930                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1931                         else
1932                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1933                 } else {
1934                         if (vport->fc_flag & FC_FABRIC)
1935                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1936                         else
1937                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1938                 }
1939         } else
1940                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1941
1942         spin_unlock_irq(shost->host_lock);
1943 }
1944
1945 static void
1946 lpfc_get_host_port_state(struct Scsi_Host *shost)
1947 {
1948         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1949         struct lpfc_hba   *phba = vport->phba;
1950
1951         spin_lock_irq(shost->host_lock);
1952
1953         if (vport->fc_flag & FC_OFFLINE_MODE)
1954                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1955         else {
1956                 switch (phba->link_state) {
1957                 case LPFC_LINK_UNKNOWN:
1958                 case LPFC_LINK_DOWN:
1959                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1960                         break;
1961                 case LPFC_LINK_UP:
1962                 case LPFC_CLEAR_LA:
1963                 case LPFC_HBA_READY:
1964                         /* Links up, beyond this port_type reports state */
1965                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1966                         break;
1967                 case LPFC_HBA_ERROR:
1968                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1969                         break;
1970                 default:
1971                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1972                         break;
1973                 }
1974         }
1975
1976         spin_unlock_irq(shost->host_lock);
1977 }
1978
1979 static void
1980 lpfc_get_host_speed(struct Scsi_Host *shost)
1981 {
1982         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1983         struct lpfc_hba   *phba = vport->phba;
1984
1985         spin_lock_irq(shost->host_lock);
1986
1987         if (lpfc_is_link_up(phba)) {
1988                 switch(phba->fc_linkspeed) {
1989                         case LA_1GHZ_LINK:
1990                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1991                         break;
1992                         case LA_2GHZ_LINK:
1993                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1994                         break;
1995                         case LA_4GHZ_LINK:
1996                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1997                         break;
1998                         case LA_8GHZ_LINK:
1999                                 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
2000                         break;
2001                         default:
2002                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
2003                         break;
2004                 }
2005         }
2006
2007         spin_unlock_irq(shost->host_lock);
2008 }
2009
2010 static void
2011 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2012 {
2013         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2014         struct lpfc_hba   *phba = vport->phba;
2015         u64 node_name;
2016
2017         spin_lock_irq(shost->host_lock);
2018
2019         if ((vport->fc_flag & FC_FABRIC) ||
2020             ((phba->fc_topology == TOPOLOGY_LOOP) &&
2021              (vport->fc_flag & FC_PUBLIC_LOOP)))
2022                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
2023         else
2024                 /* fabric is local port if there is no F/FL_Port */
2025                 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
2026
2027         spin_unlock_irq(shost->host_lock);
2028
2029         fc_host_fabric_name(shost) = node_name;
2030 }
2031
2032 static struct fc_host_statistics *
2033 lpfc_get_stats(struct Scsi_Host *shost)
2034 {
2035         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2036         struct lpfc_hba   *phba = vport->phba;
2037         struct lpfc_sli   *psli = &phba->sli;
2038         struct fc_host_statistics *hs = &phba->link_stats;
2039         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
2040         LPFC_MBOXQ_t *pmboxq;
2041         MAILBOX_t *pmb;
2042         unsigned long seconds;
2043         int rc = 0;
2044
2045         /*
2046          * prevent udev from issuing mailbox commands until the port is
2047          * configured.
2048          */
2049         if (phba->link_state < LPFC_LINK_DOWN ||
2050             !phba->mbox_mem_pool ||
2051             (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
2052                 return NULL;
2053
2054         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2055                 return NULL;
2056
2057         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2058         if (!pmboxq)
2059                 return NULL;
2060         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2061
2062         pmb = &pmboxq->mb;
2063         pmb->mbxCommand = MBX_READ_STATUS;
2064         pmb->mbxOwner = OWN_HOST;
2065         pmboxq->context1 = NULL;
2066         pmboxq->vport = vport;
2067
2068         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2069                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2070                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2071         else
2072                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2073
2074         if (rc != MBX_SUCCESS) {
2075                 if (rc != MBX_TIMEOUT)
2076                         mempool_free(pmboxq, phba->mbox_mem_pool);
2077                 return NULL;
2078         }
2079
2080         memset(hs, 0, sizeof (struct fc_host_statistics));
2081
2082         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
2083         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
2084         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
2085         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
2086
2087         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2088         pmb->mbxCommand = MBX_READ_LNK_STAT;
2089         pmb->mbxOwner = OWN_HOST;
2090         pmboxq->context1 = NULL;
2091         pmboxq->vport = vport;
2092
2093         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2094             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2095                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2096         else
2097                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2098
2099         if (rc != MBX_SUCCESS) {
2100                 if (rc != MBX_TIMEOUT)
2101                         mempool_free(pmboxq, phba->mbox_mem_pool);
2102                 return NULL;
2103         }
2104
2105         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2106         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2107         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2108         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2109         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2110         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2111         hs->error_frames = pmb->un.varRdLnk.crcCnt;
2112
2113         hs->link_failure_count -= lso->link_failure_count;
2114         hs->loss_of_sync_count -= lso->loss_of_sync_count;
2115         hs->loss_of_signal_count -= lso->loss_of_signal_count;
2116         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
2117         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
2118         hs->invalid_crc_count -= lso->invalid_crc_count;
2119         hs->error_frames -= lso->error_frames;
2120
2121         if (phba->fc_topology == TOPOLOGY_LOOP) {
2122                 hs->lip_count = (phba->fc_eventTag >> 1);
2123                 hs->lip_count -= lso->link_events;
2124                 hs->nos_count = -1;
2125         } else {
2126                 hs->lip_count = -1;
2127                 hs->nos_count = (phba->fc_eventTag >> 1);
2128                 hs->nos_count -= lso->link_events;
2129         }
2130
2131         hs->dumped_frames = -1;
2132
2133         seconds = get_seconds();
2134         if (seconds < psli->stats_start)
2135                 hs->seconds_since_last_reset = seconds +
2136                                 ((unsigned long)-1 - psli->stats_start);
2137         else
2138                 hs->seconds_since_last_reset = seconds - psli->stats_start;
2139
2140         mempool_free(pmboxq, phba->mbox_mem_pool);
2141
2142         return hs;
2143 }
2144
2145 static void
2146 lpfc_reset_stats(struct Scsi_Host *shost)
2147 {
2148         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2149         struct lpfc_hba   *phba = vport->phba;
2150         struct lpfc_sli   *psli = &phba->sli;
2151         struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
2152         LPFC_MBOXQ_t *pmboxq;
2153         MAILBOX_t *pmb;
2154         int rc = 0;
2155
2156         if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2157                 return;
2158
2159         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2160         if (!pmboxq)
2161                 return;
2162         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2163
2164         pmb = &pmboxq->mb;
2165         pmb->mbxCommand = MBX_READ_STATUS;
2166         pmb->mbxOwner = OWN_HOST;
2167         pmb->un.varWords[0] = 0x1; /* reset request */
2168         pmboxq->context1 = NULL;
2169         pmboxq->vport = vport;
2170
2171         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2172                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2173                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2174         else
2175                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2176
2177         if (rc != MBX_SUCCESS) {
2178                 if (rc != MBX_TIMEOUT)
2179                         mempool_free(pmboxq, phba->mbox_mem_pool);
2180                 return;
2181         }
2182
2183         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2184         pmb->mbxCommand = MBX_READ_LNK_STAT;
2185         pmb->mbxOwner = OWN_HOST;
2186         pmboxq->context1 = NULL;
2187         pmboxq->vport = vport;
2188
2189         if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2190             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2191                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2192         else
2193                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2194
2195         if (rc != MBX_SUCCESS) {
2196                 if (rc != MBX_TIMEOUT)
2197                         mempool_free( pmboxq, phba->mbox_mem_pool);
2198                 return;
2199         }
2200
2201         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2202         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2203         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2204         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2205         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2206         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2207         lso->error_frames = pmb->un.varRdLnk.crcCnt;
2208         lso->link_events = (phba->fc_eventTag >> 1);
2209
2210         psli->stats_start = get_seconds();
2211
2212         mempool_free(pmboxq, phba->mbox_mem_pool);
2213
2214         return;
2215 }
2216
2217 /*
2218  * The LPFC driver treats linkdown handling as target loss events so there
2219  * are no sysfs handlers for link_down_tmo.
2220  */
2221
2222 static struct lpfc_nodelist *
2223 lpfc_get_node_by_target(struct scsi_target *starget)
2224 {
2225         struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
2226         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2227         struct lpfc_nodelist *ndlp;
2228
2229         spin_lock_irq(shost->host_lock);
2230         /* Search for this, mapped, target ID */
2231         list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2232                 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2233                     starget->id == ndlp->nlp_sid) {
2234                         spin_unlock_irq(shost->host_lock);
2235                         return ndlp;
2236                 }
2237         }
2238         spin_unlock_irq(shost->host_lock);
2239         return NULL;
2240 }
2241
2242 static void
2243 lpfc_get_starget_port_id(struct scsi_target *starget)
2244 {
2245         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2246
2247         fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2248 }
2249
2250 static void
2251 lpfc_get_starget_node_name(struct scsi_target *starget)
2252 {
2253         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2254
2255         fc_starget_node_name(starget) =
2256                 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2257 }
2258
2259 static void
2260 lpfc_get_starget_port_name(struct scsi_target *starget)
2261 {
2262         struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2263
2264         fc_starget_port_name(starget) =
2265                 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2266 }
2267
2268 static void
2269 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2270 {
2271         if (timeout)
2272                 rport->dev_loss_tmo = timeout;
2273         else
2274                 rport->dev_loss_tmo = 1;
2275 }
2276
2277
2278 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
2279 static ssize_t                                                          \
2280 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
2281 {                                                                       \
2282         struct fc_rport *rport = transport_class_to_rport(cdev);        \
2283         struct lpfc_rport_data *rdata = rport->hostdata;                \
2284         return snprintf(buf, sz, format_string,                         \
2285                 (rdata->target) ? cast rdata->target->field : 0);       \
2286 }
2287
2288 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
2289         lpfc_rport_show_function(field, format_string, sz, )            \
2290 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2291
2292
2293 struct fc_function_template lpfc_transport_functions = {
2294         /* fixed attributes the driver supports */
2295         .show_host_node_name = 1,
2296         .show_host_port_name = 1,
2297         .show_host_supported_classes = 1,
2298         .show_host_supported_fc4s = 1,
2299         .show_host_supported_speeds = 1,
2300         .show_host_maxframe_size = 1,
2301
2302         /* dynamic attributes the driver supports */
2303         .get_host_port_id = lpfc_get_host_port_id,
2304         .show_host_port_id = 1,
2305
2306         .get_host_port_type = lpfc_get_host_port_type,
2307         .show_host_port_type = 1,
2308
2309         .get_host_port_state = lpfc_get_host_port_state,
2310         .show_host_port_state = 1,
2311
2312         /* active_fc4s is shown but doesn't change (thus no get function) */
2313         .show_host_active_fc4s = 1,
2314
2315         .get_host_speed = lpfc_get_host_speed,
2316         .show_host_speed = 1,
2317
2318         .get_host_fabric_name = lpfc_get_host_fabric_name,
2319         .show_host_fabric_name = 1,
2320
2321         /*
2322          * The LPFC driver treats linkdown handling as target loss events
2323          * so there are no sysfs handlers for link_down_tmo.
2324          */
2325
2326         .get_fc_host_stats = lpfc_get_stats,
2327         .reset_fc_host_stats = lpfc_reset_stats,
2328
2329         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2330         .show_rport_maxframe_size = 1,
2331         .show_rport_supported_classes = 1,
2332
2333         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2334         .show_rport_dev_loss_tmo = 1,
2335
2336         .get_starget_port_id  = lpfc_get_starget_port_id,
2337         .show_starget_port_id = 1,
2338
2339         .get_starget_node_name = lpfc_get_starget_node_name,
2340         .show_starget_node_name = 1,
2341
2342         .get_starget_port_name = lpfc_get_starget_port_name,
2343         .show_starget_port_name = 1,
2344
2345         .issue_fc_host_lip = lpfc_issue_lip,
2346         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2347         .terminate_rport_io = lpfc_terminate_rport_io,
2348
2349         .vport_create = lpfc_vport_create,
2350         .vport_delete = lpfc_vport_delete,
2351         .dd_fcvport_size = sizeof(struct lpfc_vport *),
2352 };
2353
2354 struct fc_function_template lpfc_vport_transport_functions = {
2355         /* fixed attributes the driver supports */
2356         .show_host_node_name = 1,
2357         .show_host_port_name = 1,
2358         .show_host_supported_classes = 1,
2359         .show_host_supported_fc4s = 1,
2360         .show_host_supported_speeds = 1,
2361         .show_host_maxframe_size = 1,
2362
2363         /* dynamic attributes the driver supports */
2364         .get_host_port_id = lpfc_get_host_port_id,
2365         .show_host_port_id = 1,
2366
2367         .get_host_port_type = lpfc_get_host_port_type,
2368         .show_host_port_type = 1,
2369
2370         .get_host_port_state = lpfc_get_host_port_state,
2371         .show_host_port_state = 1,
2372
2373         /* active_fc4s is shown but doesn't change (thus no get function) */
2374         .show_host_active_fc4s = 1,
2375
2376         .get_host_speed = lpfc_get_host_speed,
2377         .show_host_speed = 1,
2378
2379         .get_host_fabric_name = lpfc_get_host_fabric_name,
2380         .show_host_fabric_name = 1,
2381
2382         /*
2383          * The LPFC driver treats linkdown handling as target loss events
2384          * so there are no sysfs handlers for link_down_tmo.
2385          */
2386
2387         .get_fc_host_stats = lpfc_get_stats,
2388         .reset_fc_host_stats = lpfc_reset_stats,
2389
2390         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2391         .show_rport_maxframe_size = 1,
2392         .show_rport_supported_classes = 1,
2393
2394         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2395         .show_rport_dev_loss_tmo = 1,
2396
2397         .get_starget_port_id  = lpfc_get_starget_port_id,
2398         .show_starget_port_id = 1,
2399
2400         .get_starget_node_name = lpfc_get_starget_node_name,
2401         .show_starget_node_name = 1,
2402
2403         .get_starget_port_name = lpfc_get_starget_port_name,
2404         .show_starget_port_name = 1,
2405
2406         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2407         .terminate_rport_io = lpfc_terminate_rport_io,
2408
2409         .vport_disable = lpfc_vport_disable,
2410 };
2411
2412 void
2413 lpfc_get_cfgparam(struct lpfc_hba *phba)
2414 {
2415         lpfc_cr_delay_init(phba, lpfc_cr_delay);
2416         lpfc_cr_count_init(phba, lpfc_cr_count);
2417         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2418         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2419         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2420         lpfc_ack0_init(phba, lpfc_ack0);
2421         lpfc_topology_init(phba, lpfc_topology);
2422         lpfc_link_speed_init(phba, lpfc_link_speed);
2423         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2424         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
2425         lpfc_use_msi_init(phba, lpfc_use_msi);
2426         phba->cfg_poll = lpfc_poll;
2427         phba->cfg_soft_wwnn = 0L;
2428         phba->cfg_soft_wwpn = 0L;
2429         /*
2430          * The total number of segments is the configuration value plus 2
2431          * since the IOCB need a command and response bde.
2432          */
2433         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2434         /*
2435          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2436          * used to create the sg_dma_buf_pool must be dynamically calculated
2437          */
2438         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2439                         sizeof(struct fcp_rsp) +
2440                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2441         lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2442         return;
2443 }
2444
2445 void
2446 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2447 {
2448         lpfc_log_verbose_init(vport, lpfc_log_verbose);
2449         lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
2450         lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
2451         lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
2452         lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
2453         lpfc_restrict_login_init(vport, lpfc_restrict_login);
2454         lpfc_fcp_class_init(vport, lpfc_fcp_class);
2455         lpfc_use_adisc_init(vport, lpfc_use_adisc);
2456         lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2457         lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2458         lpfc_max_luns_init(vport, lpfc_max_luns);
2459         lpfc_scan_down_init(vport, lpfc_scan_down);
2460         return;
2461 }