Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6] / 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) 2004-2006 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/pci.h>
24 #include <linux/interrupt.h>
25
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_tcq.h>
30 #include <scsi/scsi_transport_fc.h>
31
32 #include "lpfc_hw.h"
33 #include "lpfc_sli.h"
34 #include "lpfc_disc.h"
35 #include "lpfc_scsi.h"
36 #include "lpfc.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_version.h"
39 #include "lpfc_compat.h"
40 #include "lpfc_crtn.h"
41
42 #define LPFC_DEF_DEVLOSS_TMO 30
43 #define LPFC_MIN_DEVLOSS_TMO 1
44 #define LPFC_MAX_DEVLOSS_TMO 255
45
46 static void
47 lpfc_jedec_to_ascii(int incr, char hdw[])
48 {
49         int i, j;
50         for (i = 0; i < 8; i++) {
51                 j = (incr & 0xf);
52                 if (j <= 9)
53                         hdw[7 - i] = 0x30 +  j;
54                  else
55                         hdw[7 - i] = 0x61 + j - 10;
56                 incr = (incr >> 4);
57         }
58         hdw[8] = 0;
59         return;
60 }
61
62 static ssize_t
63 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
64 {
65         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
66 }
67
68 static ssize_t
69 management_version_show(struct class_device *cdev, char *buf)
70 {
71         return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
72 }
73
74 static ssize_t
75 lpfc_info_show(struct class_device *cdev, char *buf)
76 {
77         struct Scsi_Host *host = class_to_shost(cdev);
78         return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
79 }
80
81 static ssize_t
82 lpfc_serialnum_show(struct class_device *cdev, char *buf)
83 {
84         struct Scsi_Host *host = class_to_shost(cdev);
85         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
86         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
87 }
88
89 static ssize_t
90 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
91 {
92         struct Scsi_Host *host = class_to_shost(cdev);
93         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
94         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
95 }
96
97 static ssize_t
98 lpfc_modelname_show(struct class_device *cdev, char *buf)
99 {
100         struct Scsi_Host *host = class_to_shost(cdev);
101         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
102         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
103 }
104
105 static ssize_t
106 lpfc_programtype_show(struct class_device *cdev, char *buf)
107 {
108         struct Scsi_Host *host = class_to_shost(cdev);
109         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
110         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
111 }
112
113 static ssize_t
114 lpfc_portnum_show(struct class_device *cdev, char *buf)
115 {
116         struct Scsi_Host *host = class_to_shost(cdev);
117         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
118         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
119 }
120
121 static ssize_t
122 lpfc_fwrev_show(struct class_device *cdev, char *buf)
123 {
124         struct Scsi_Host *host = class_to_shost(cdev);
125         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
126         char fwrev[32];
127         lpfc_decode_firmware_rev(phba, fwrev, 1);
128         return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
129 }
130
131 static ssize_t
132 lpfc_hdw_show(struct class_device *cdev, char *buf)
133 {
134         char hdw[9];
135         struct Scsi_Host *host = class_to_shost(cdev);
136         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
137         lpfc_vpd_t *vp = &phba->vpd;
138         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
139         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
140 }
141 static ssize_t
142 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
143 {
144         struct Scsi_Host *host = class_to_shost(cdev);
145         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
146         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
147 }
148 static ssize_t
149 lpfc_state_show(struct class_device *cdev, char *buf)
150 {
151         struct Scsi_Host *host = class_to_shost(cdev);
152         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
153         int len = 0;
154         switch (phba->hba_state) {
155         case LPFC_STATE_UNKNOWN:
156         case LPFC_WARM_START:
157         case LPFC_INIT_START:
158         case LPFC_INIT_MBX_CMDS:
159         case LPFC_LINK_DOWN:
160                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
161                 break;
162         case LPFC_LINK_UP:
163         case LPFC_LOCAL_CFG_LINK:
164                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
165                 break;
166         case LPFC_FLOGI:
167         case LPFC_FABRIC_CFG_LINK:
168         case LPFC_NS_REG:
169         case LPFC_NS_QRY:
170         case LPFC_BUILD_DISC_LIST:
171         case LPFC_DISC_AUTH:
172         case LPFC_CLEAR_LA:
173                 len += snprintf(buf + len, PAGE_SIZE-len,
174                                 "Link Up - Discovery\n");
175                 break;
176         case LPFC_HBA_READY:
177                 len += snprintf(buf + len, PAGE_SIZE-len,
178                                 "Link Up - Ready:\n");
179                 if (phba->fc_topology == TOPOLOGY_LOOP) {
180                         if (phba->fc_flag & FC_PUBLIC_LOOP)
181                                 len += snprintf(buf + len, PAGE_SIZE-len,
182                                                 "   Public Loop\n");
183                         else
184                                 len += snprintf(buf + len, PAGE_SIZE-len,
185                                                 "   Private Loop\n");
186                 } else {
187                         if (phba->fc_flag & FC_FABRIC)
188                                 len += snprintf(buf + len, PAGE_SIZE-len,
189                                                 "   Fabric\n");
190                         else
191                                 len += snprintf(buf + len, PAGE_SIZE-len,
192                                                 "   Point-2-Point\n");
193                 }
194         }
195         return len;
196 }
197
198 static ssize_t
199 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
200 {
201         struct Scsi_Host *host = class_to_shost(cdev);
202         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
203         return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
204                                                         phba->fc_unmap_cnt);
205 }
206
207
208 static int
209 lpfc_issue_lip(struct Scsi_Host *host)
210 {
211         struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
212         LPFC_MBOXQ_t *pmboxq;
213         int mbxstatus = MBXERR_ERROR;
214
215         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
216             (phba->hba_state != LPFC_HBA_READY))
217                 return -EPERM;
218
219         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
220
221         if (!pmboxq)
222                 return -ENOMEM;
223
224         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
225         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
226         pmboxq->mb.mbxOwner = OWN_HOST;
227
228         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
229
230         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
231                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
232                 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
233                                phba->cfg_link_speed);
234                 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
235                                                      phba->fc_ratov * 2);
236         }
237
238         if (mbxstatus == MBX_TIMEOUT)
239                 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
240         else
241                 mempool_free(pmboxq, phba->mbox_mem_pool);
242
243         if (mbxstatus == MBXERR_ERROR)
244                 return -EIO;
245
246         return 0;
247 }
248
249 static int
250 lpfc_selective_reset(struct lpfc_hba *phba)
251 {
252         struct completion online_compl;
253         int status = 0;
254
255         init_completion(&online_compl);
256         lpfc_workq_post_event(phba, &status, &online_compl,
257                               LPFC_EVT_OFFLINE);
258         wait_for_completion(&online_compl);
259
260         if (status != 0)
261                 return -EIO;
262
263         init_completion(&online_compl);
264         lpfc_workq_post_event(phba, &status, &online_compl,
265                               LPFC_EVT_ONLINE);
266         wait_for_completion(&online_compl);
267
268         if (status != 0)
269                 return -EIO;
270
271         return 0;
272 }
273
274 static ssize_t
275 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
276 {
277         struct Scsi_Host *host = class_to_shost(cdev);
278         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
279         int status = -EINVAL;
280
281         if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
282                 status = lpfc_selective_reset(phba);
283
284         if (status == 0)
285                 return strlen(buf);
286         else
287                 return status;
288 }
289
290 static ssize_t
291 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
292 {
293         struct Scsi_Host *host = class_to_shost(cdev);
294         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
295         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
296 }
297
298 static ssize_t
299 lpfc_board_mode_show(struct class_device *cdev, char *buf)
300 {
301         struct Scsi_Host *host = class_to_shost(cdev);
302         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
303         char  * state;
304
305         if (phba->hba_state == LPFC_HBA_ERROR)
306                 state = "error";
307         else if (phba->hba_state == LPFC_WARM_START)
308                 state = "warm start";
309         else if (phba->hba_state == LPFC_INIT_START)
310                 state = "offline";
311         else
312                 state = "online";
313
314         return snprintf(buf, PAGE_SIZE, "%s\n", state);
315 }
316
317 static ssize_t
318 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
319 {
320         struct Scsi_Host *host = class_to_shost(cdev);
321         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
322         struct completion online_compl;
323         int status=0;
324
325         init_completion(&online_compl);
326
327         if(strncmp(buf, "online", sizeof("online") - 1) == 0)
328                 lpfc_workq_post_event(phba, &status, &online_compl,
329                                       LPFC_EVT_ONLINE);
330         else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
331                 lpfc_workq_post_event(phba, &status, &online_compl,
332                                       LPFC_EVT_OFFLINE);
333         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
334                 lpfc_workq_post_event(phba, &status, &online_compl,
335                                       LPFC_EVT_WARM_START);
336         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
337                 lpfc_workq_post_event(phba, &status, &online_compl,
338                                       LPFC_EVT_KILL);
339         else
340                 return -EINVAL;
341
342         wait_for_completion(&online_compl);
343
344         if (!status)
345                 return strlen(buf);
346         else
347                 return -EIO;
348 }
349
350 static ssize_t
351 lpfc_poll_show(struct class_device *cdev, char *buf)
352 {
353         struct Scsi_Host *host = class_to_shost(cdev);
354         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
355
356         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
357 }
358
359 static ssize_t
360 lpfc_poll_store(struct class_device *cdev, const char *buf,
361                 size_t count)
362 {
363         struct Scsi_Host *host = class_to_shost(cdev);
364         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
365         uint32_t creg_val;
366         uint32_t old_val;
367         int val=0;
368
369         if (!isdigit(buf[0]))
370                 return -EINVAL;
371
372         if (sscanf(buf, "%i", &val) != 1)
373                 return -EINVAL;
374
375         if ((val & 0x3) != val)
376                 return -EINVAL;
377
378         spin_lock_irq(phba->host->host_lock);
379
380         old_val = phba->cfg_poll;
381
382         if (val & ENABLE_FCP_RING_POLLING) {
383                 if ((val & DISABLE_FCP_RING_INT) &&
384                     !(old_val & DISABLE_FCP_RING_INT)) {
385                         creg_val = readl(phba->HCregaddr);
386                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
387                         writel(creg_val, phba->HCregaddr);
388                         readl(phba->HCregaddr); /* flush */
389
390                         lpfc_poll_start_timer(phba);
391                 }
392         } else if (val != 0x0) {
393                 spin_unlock_irq(phba->host->host_lock);
394                 return -EINVAL;
395         }
396
397         if (!(val & DISABLE_FCP_RING_INT) &&
398             (old_val & DISABLE_FCP_RING_INT))
399         {
400                 spin_unlock_irq(phba->host->host_lock);
401                 del_timer(&phba->fcp_poll_timer);
402                 spin_lock_irq(phba->host->host_lock);
403                 creg_val = readl(phba->HCregaddr);
404                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
405                 writel(creg_val, phba->HCregaddr);
406                 readl(phba->HCregaddr); /* flush */
407         }
408
409         phba->cfg_poll = val;
410
411         spin_unlock_irq(phba->host->host_lock);
412
413         return strlen(buf);
414 }
415
416 #define lpfc_param_show(attr)   \
417 static ssize_t \
418 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
419 { \
420         struct Scsi_Host *host = class_to_shost(cdev);\
421         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
422         int val = 0;\
423         val = phba->cfg_##attr;\
424         return snprintf(buf, PAGE_SIZE, "%d\n",\
425                         phba->cfg_##attr);\
426 }
427
428 #define lpfc_param_hex_show(attr)       \
429 static ssize_t \
430 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
431 { \
432         struct Scsi_Host *host = class_to_shost(cdev);\
433         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
434         int val = 0;\
435         val = phba->cfg_##attr;\
436         return snprintf(buf, PAGE_SIZE, "%#x\n",\
437                         phba->cfg_##attr);\
438 }
439
440 #define lpfc_param_init(attr, default, minval, maxval)  \
441 static int \
442 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
443 { \
444         if (val >= minval && val <= maxval) {\
445                 phba->cfg_##attr = val;\
446                 return 0;\
447         }\
448         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
449                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
450                         "allowed range is ["#minval", "#maxval"]\n", \
451                         phba->brd_no, val); \
452         phba->cfg_##attr = default;\
453         return -EINVAL;\
454 }
455
456 #define lpfc_param_set(attr, default, minval, maxval)   \
457 static int \
458 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
459 { \
460         if (val >= minval && val <= maxval) {\
461                 phba->cfg_##attr = val;\
462                 return 0;\
463         }\
464         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
465                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
466                         "allowed range is ["#minval", "#maxval"]\n", \
467                         phba->brd_no, val); \
468         return -EINVAL;\
469 }
470
471 #define lpfc_param_store(attr)  \
472 static ssize_t \
473 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
474 { \
475         struct Scsi_Host *host = class_to_shost(cdev);\
476         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
477         int val=0;\
478         if (!isdigit(buf[0]))\
479                 return -EINVAL;\
480         if (sscanf(buf, "%i", &val) != 1)\
481                 return -EINVAL;\
482         if (lpfc_##attr##_set(phba, val) == 0) \
483                 return strlen(buf);\
484         else \
485                 return -EINVAL;\
486 }
487
488 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
489 static int lpfc_##name = defval;\
490 module_param(lpfc_##name, int, 0);\
491 MODULE_PARM_DESC(lpfc_##name, desc);\
492 lpfc_param_init(name, defval, minval, maxval)
493
494 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
495 static int lpfc_##name = defval;\
496 module_param(lpfc_##name, int, 0);\
497 MODULE_PARM_DESC(lpfc_##name, desc);\
498 lpfc_param_show(name)\
499 lpfc_param_init(name, defval, minval, maxval)\
500 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
501
502 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
503 static int lpfc_##name = defval;\
504 module_param(lpfc_##name, int, 0);\
505 MODULE_PARM_DESC(lpfc_##name, desc);\
506 lpfc_param_show(name)\
507 lpfc_param_init(name, defval, minval, maxval)\
508 lpfc_param_set(name, defval, minval, maxval)\
509 lpfc_param_store(name)\
510 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
511                          lpfc_##name##_show, lpfc_##name##_store)
512
513 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
514 static int lpfc_##name = defval;\
515 module_param(lpfc_##name, int, 0);\
516 MODULE_PARM_DESC(lpfc_##name, desc);\
517 lpfc_param_hex_show(name)\
518 lpfc_param_init(name, defval, minval, maxval)\
519 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
520
521 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
522 static int lpfc_##name = defval;\
523 module_param(lpfc_##name, int, 0);\
524 MODULE_PARM_DESC(lpfc_##name, desc);\
525 lpfc_param_hex_show(name)\
526 lpfc_param_init(name, defval, minval, maxval)\
527 lpfc_param_set(name, defval, minval, maxval)\
528 lpfc_param_store(name)\
529 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
530                          lpfc_##name##_show, lpfc_##name##_store)
531
532 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
533 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
534 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
535 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
536 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
537 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
538 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
539 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
540 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
541 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
542                                         lpfc_option_rom_version_show, NULL);
543 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
544                                         lpfc_num_discovered_ports_show, NULL);
545 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
546 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
547                          NULL);
548 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
549                          NULL);
550 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
551                          lpfc_board_mode_show, lpfc_board_mode_store);
552 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
553
554
555 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
556
557 static ssize_t
558 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
559                                 size_t count)
560 {
561         struct Scsi_Host *host = class_to_shost(cdev);
562         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
563         unsigned int cnt = count;
564
565         /*
566          * We're doing a simple sanity check for soft_wwpn setting.
567          * We require that the user write a specific key to enable
568          * the soft_wwpn attribute to be settable. Once the attribute
569          * is written, the enable key resets. If further updates are
570          * desired, the key must be written again to re-enable the
571          * attribute.
572          *
573          * The "key" is not secret - it is a hardcoded string shown
574          * here. The intent is to protect against the random user or
575          * application that is just writing attributes.
576          */
577
578         /* count may include a LF at end of string */
579         if (buf[cnt-1] == '\n')
580                 cnt--;
581
582         if ((cnt != strlen(lpfc_soft_wwn_key)) ||
583             (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
584                 return -EINVAL;
585
586         phba->soft_wwn_enable = 1;
587         return count;
588 }
589 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
590                                 lpfc_soft_wwn_enable_store);
591
592 static ssize_t
593 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
594 {
595         struct Scsi_Host *host = class_to_shost(cdev);
596         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
597         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
598                         (unsigned long long)phba->cfg_soft_wwpn);
599 }
600
601
602 static ssize_t
603 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
604 {
605         struct Scsi_Host *host = class_to_shost(cdev);
606         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
607         struct completion online_compl;
608         int stat1=0, stat2=0;
609         unsigned int i, j, cnt=count;
610         u8 wwpn[8];
611
612         /* count may include a LF at end of string */
613         if (buf[cnt-1] == '\n')
614                 cnt--;
615
616         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
617             ((cnt == 17) && (*buf++ != 'x')) ||
618             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
619                 return -EINVAL;
620
621         phba->soft_wwn_enable = 0;
622
623         memset(wwpn, 0, sizeof(wwpn));
624
625         /* Validate and store the new name */
626         for (i=0, j=0; i < 16; i++) {
627                 if ((*buf >= 'a') && (*buf <= 'f'))
628                         j = ((j << 4) | ((*buf++ -'a') + 10));
629                 else if ((*buf >= 'A') && (*buf <= 'F'))
630                         j = ((j << 4) | ((*buf++ -'A') + 10));
631                 else if ((*buf >= '0') && (*buf <= '9'))
632                         j = ((j << 4) | (*buf++ -'0'));
633                 else
634                         return -EINVAL;
635                 if (i % 2) {
636                         wwpn[i/2] = j & 0xff;
637                         j = 0;
638                 }
639         }
640         phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
641         fc_host_port_name(host) = phba->cfg_soft_wwpn;
642         if (phba->cfg_soft_wwnn)
643                 fc_host_node_name(host) = phba->cfg_soft_wwnn;
644
645         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
646                    "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
647
648         init_completion(&online_compl);
649         lpfc_workq_post_event(phba, &stat1, &online_compl, LPFC_EVT_OFFLINE);
650         wait_for_completion(&online_compl);
651         if (stat1)
652                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
653                         "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
654                         "adapter - %d\n", phba->brd_no, stat1);
655
656         init_completion(&online_compl);
657         lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
658         wait_for_completion(&online_compl);
659         if (stat2)
660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
661                         "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
662                         "adapter - %d\n", phba->brd_no, stat2);
663
664         return (stat1 || stat2) ? -EIO : count;
665 }
666 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
667                          lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
668
669 static ssize_t
670 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
671 {
672         struct Scsi_Host *host = class_to_shost(cdev);
673         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
674         return snprintf(buf, PAGE_SIZE, "0x%llx\n",
675                         (unsigned long long)phba->cfg_soft_wwnn);
676 }
677
678
679 static ssize_t
680 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
681 {
682         struct Scsi_Host *host = class_to_shost(cdev);
683         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
684         unsigned int i, j, cnt=count;
685         u8 wwnn[8];
686
687         /* count may include a LF at end of string */
688         if (buf[cnt-1] == '\n')
689                 cnt--;
690
691         if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
692             ((cnt == 17) && (*buf++ != 'x')) ||
693             ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
694                 return -EINVAL;
695
696         /*
697          * Allow wwnn to be set many times, as long as the enable is set.
698          * However, once the wwpn is set, everything locks.
699          */
700
701         memset(wwnn, 0, sizeof(wwnn));
702
703         /* Validate and store the new name */
704         for (i=0, j=0; i < 16; i++) {
705                 if ((*buf >= 'a') && (*buf <= 'f'))
706                         j = ((j << 4) | ((*buf++ -'a') + 10));
707                 else if ((*buf >= 'A') && (*buf <= 'F'))
708                         j = ((j << 4) | ((*buf++ -'A') + 10));
709                 else if ((*buf >= '0') && (*buf <= '9'))
710                         j = ((j << 4) | (*buf++ -'0'));
711                 else
712                         return -EINVAL;
713                 if (i % 2) {
714                         wwnn[i/2] = j & 0xff;
715                         j = 0;
716                 }
717         }
718         phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
719
720         dev_printk(KERN_NOTICE, &phba->pcidev->dev,
721                    "lpfc%d: soft_wwnn set. Value will take effect upon "
722                    "setting of the soft_wwpn\n", phba->brd_no);
723
724         return count;
725 }
726 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
727                          lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
728
729
730 static int lpfc_poll = 0;
731 module_param(lpfc_poll, int, 0);
732 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
733                  " 0 - none,"
734                  " 1 - poll with interrupts enabled"
735                  " 3 - poll and disable FCP ring interrupts");
736
737 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
738                          lpfc_poll_show, lpfc_poll_store);
739
740 /*
741 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
742 # until the timer expires. Value range is [0,255]. Default value is 30.
743 */
744 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
745 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
746 module_param(lpfc_nodev_tmo, int, 0);
747 MODULE_PARM_DESC(lpfc_nodev_tmo,
748                  "Seconds driver will hold I/O waiting "
749                  "for a device to come back");
750 static ssize_t
751 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
752 {
753         struct Scsi_Host *host = class_to_shost(cdev);
754         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
755         int val = 0;
756         val = phba->cfg_devloss_tmo;
757         return snprintf(buf, PAGE_SIZE, "%d\n",
758                         phba->cfg_devloss_tmo);
759 }
760
761 static int
762 lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
763 {
764         static int warned;
765         if (phba->cfg_devloss_tmo !=  LPFC_DEF_DEVLOSS_TMO) {
766                 phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
767                 if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
768                         warned = 1;
769                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
770                                         "%d:0402 Ignoring nodev_tmo module "
771                                         "parameter because devloss_tmo is"
772                                         " set.\n",
773                                         phba->brd_no);
774                 }
775                 return 0;
776         }
777
778         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
779                 phba->cfg_nodev_tmo = val;
780                 phba->cfg_devloss_tmo = val;
781                 return 0;
782         }
783         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
784                         "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
785                         "allowed range is [%d, %d]\n",
786                         phba->brd_no, val,
787                         LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
788         phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
789         return -EINVAL;
790 }
791
792 static int
793 lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
794 {
795         if (phba->dev_loss_tmo_changed ||
796                 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
798                                 "%d:0401 Ignoring change to nodev_tmo "
799                                 "because devloss_tmo is set.\n",
800                                 phba->brd_no);
801                 return 0;
802         }
803
804         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
805                 phba->cfg_nodev_tmo = val;
806                 phba->cfg_devloss_tmo = val;
807                 return 0;
808         }
809
810         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
811                         "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
812                         "allowed range is [%d, %d]\n",
813                         phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
814                         LPFC_MAX_DEVLOSS_TMO);
815         return -EINVAL;
816 }
817
818 lpfc_param_store(nodev_tmo)
819
820 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
821                          lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
822
823 /*
824 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
825 # disappear until the timer expires. Value range is [0,255]. Default
826 # value is 30.
827 */
828 module_param(lpfc_devloss_tmo, int, 0);
829 MODULE_PARM_DESC(lpfc_devloss_tmo,
830                  "Seconds driver will hold I/O waiting "
831                  "for a device to come back");
832 lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
833                 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
834 lpfc_param_show(devloss_tmo)
835 static int
836 lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
837 {
838         if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
839                 phba->cfg_nodev_tmo = val;
840                 phba->cfg_devloss_tmo = val;
841                 phba->dev_loss_tmo_changed = 1;
842                 return 0;
843         }
844
845         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
846                         "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
847                         " %d, allowed range is [%d, %d]\n",
848                         phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
849                         LPFC_MAX_DEVLOSS_TMO);
850         return -EINVAL;
851 }
852
853 lpfc_param_store(devloss_tmo)
854 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
855         lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
856
857 /*
858 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
859 # deluged with LOTS of information.
860 # You can set a bit mask to record specific types of verbose messages:
861 #
862 # LOG_ELS                       0x1        ELS events
863 # LOG_DISCOVERY                 0x2        Link discovery events
864 # LOG_MBOX                      0x4        Mailbox events
865 # LOG_INIT                      0x8        Initialization events
866 # LOG_LINK_EVENT                0x10       Link events
867 # LOG_FCP                       0x40       FCP traffic history
868 # LOG_NODE                      0x80       Node table events
869 # LOG_MISC                      0x400      Miscellaneous events
870 # LOG_SLI                       0x800      SLI events
871 # LOG_FCP_ERROR                 0x1000     Only log FCP errors
872 # LOG_LIBDFC                    0x2000     LIBDFC events
873 # LOG_ALL_MSG                   0xffff     LOG all messages
874 */
875 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
876
877 /*
878 # lun_queue_depth:  This parameter is used to limit the number of outstanding
879 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
880 */
881 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
882             "Max number of FCP commands we can queue to a specific LUN");
883
884 /*
885 # hba_queue_depth:  This parameter is used to limit the number of outstanding
886 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
887 # value is greater than the maximum number of exchanges supported by the HBA,
888 # then maximum number of exchanges supported by the HBA is used to determine
889 # the hba_queue_depth.
890 */
891 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
892             "Max number of FCP commands we can queue to a lpfc HBA");
893
894 /*
895 # Some disk devices have a "select ID" or "select Target" capability.
896 # From a protocol standpoint "select ID" usually means select the
897 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
898 # annex" which contains a table that maps a "select ID" (a number
899 # between 0 and 7F) to an ALPA.  By default, for compatibility with
900 # older drivers, the lpfc driver scans this table from low ALPA to high
901 # ALPA.
902 #
903 # Turning on the scan-down variable (on  = 1, off = 0) will
904 # cause the lpfc driver to use an inverted table, effectively
905 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
906 #
907 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
908 # and will not work across a fabric. Also this parameter will take
909 # effect only in the case when ALPA map is not available.)
910 */
911 LPFC_ATTR_R(scan_down, 1, 0, 1,
912              "Start scanning for devices from highest ALPA to lowest");
913
914 /*
915 # lpfc_topology:  link topology for init link
916 #            0x0  = attempt loop mode then point-to-point
917 #            0x01 = internal loopback mode
918 #            0x02 = attempt point-to-point mode only
919 #            0x04 = attempt loop mode only
920 #            0x06 = attempt point-to-point mode then loop
921 # Set point-to-point mode if you want to run as an N_Port.
922 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
923 # Default value is 0.
924 */
925 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
926
927 /*
928 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
929 # connection.
930 #       0  = auto select (default)
931 #       1  = 1 Gigabaud
932 #       2  = 2 Gigabaud
933 #       4  = 4 Gigabaud
934 # Value range is [0,4]. Default value is 0.
935 */
936 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
937
938 /*
939 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
940 # Value range is [2,3]. Default value is 3.
941 */
942 LPFC_ATTR_R(fcp_class, 3, 2, 3,
943              "Select Fibre Channel class of service for FCP sequences");
944
945 /*
946 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
947 # is [0,1]. Default value is 0.
948 */
949 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
950              "Use ADISC on rediscovery to authenticate FCP devices");
951
952 /*
953 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
954 # range is [0,1]. Default value is 0.
955 */
956 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
957
958 /*
959 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
960 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
961 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
962 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
963 # cr_delay is set to 0.
964 */
965 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
966                 "interrupt response is generated");
967
968 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
969                 "interrupt response is generated");
970
971 /*
972 # lpfc_multi_ring_support:  Determines how many rings to spread available
973 # cmd/rsp IOCB entries across.
974 # Value range is [1,2]. Default value is 1.
975 */
976 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
977                 "SLI rings to spread IOCB entries across");
978
979 /*
980 # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
981 # identifies what rctl value to configure the additional ring for.
982 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
983 */
984 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
985              255, "Identifies RCTL for additional ring configuration");
986
987 /*
988 # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
989 # identifies what type value to configure the additional ring for.
990 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
991 */
992 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
993              255, "Identifies TYPE for additional ring configuration");
994
995 /*
996 # lpfc_fdmi_on: controls FDMI support.
997 #       0 = no FDMI support
998 #       1 = support FDMI without attribute of hostname
999 #       2 = support FDMI with attribute of hostname
1000 # Value range [0,2]. Default value is 0.
1001 */
1002 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1003
1004 /*
1005 # Specifies the maximum number of ELS cmds we can have outstanding (for
1006 # discovery). Value range is [1,64]. Default value = 32.
1007 */
1008 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1009                  "during discovery");
1010
1011 /*
1012 # lpfc_max_luns: maximum allowed LUN.
1013 # Value range is [0,65535]. Default value is 255.
1014 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1015 */
1016 LPFC_ATTR_R(max_luns, 255, 0, 65535,
1017              "Maximum allowed LUN");
1018
1019 /*
1020 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1021 # Value range is [1,255], default value is 10.
1022 */
1023 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1024              "Milliseconds driver will wait between polling FCP ring");
1025
1026 /*
1027 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1028 #               support this feature
1029 #       0  = MSI disabled (default)
1030 #       1  = MSI enabled
1031 # Value range is [0,1]. Default value is 0.
1032 */
1033 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1034
1035
1036 struct class_device_attribute *lpfc_host_attrs[] = {
1037         &class_device_attr_info,
1038         &class_device_attr_serialnum,
1039         &class_device_attr_modeldesc,
1040         &class_device_attr_modelname,
1041         &class_device_attr_programtype,
1042         &class_device_attr_portnum,
1043         &class_device_attr_fwrev,
1044         &class_device_attr_hdw,
1045         &class_device_attr_option_rom_version,
1046         &class_device_attr_state,
1047         &class_device_attr_num_discovered_ports,
1048         &class_device_attr_lpfc_drvr_version,
1049         &class_device_attr_lpfc_log_verbose,
1050         &class_device_attr_lpfc_lun_queue_depth,
1051         &class_device_attr_lpfc_hba_queue_depth,
1052         &class_device_attr_lpfc_nodev_tmo,
1053         &class_device_attr_lpfc_devloss_tmo,
1054         &class_device_attr_lpfc_fcp_class,
1055         &class_device_attr_lpfc_use_adisc,
1056         &class_device_attr_lpfc_ack0,
1057         &class_device_attr_lpfc_topology,
1058         &class_device_attr_lpfc_scan_down,
1059         &class_device_attr_lpfc_link_speed,
1060         &class_device_attr_lpfc_cr_delay,
1061         &class_device_attr_lpfc_cr_count,
1062         &class_device_attr_lpfc_multi_ring_support,
1063         &class_device_attr_lpfc_multi_ring_rctl,
1064         &class_device_attr_lpfc_multi_ring_type,
1065         &class_device_attr_lpfc_fdmi_on,
1066         &class_device_attr_lpfc_max_luns,
1067         &class_device_attr_nport_evt_cnt,
1068         &class_device_attr_management_version,
1069         &class_device_attr_board_mode,
1070         &class_device_attr_issue_reset,
1071         &class_device_attr_lpfc_poll,
1072         &class_device_attr_lpfc_poll_tmo,
1073         &class_device_attr_lpfc_use_msi,
1074         &class_device_attr_lpfc_soft_wwnn,
1075         &class_device_attr_lpfc_soft_wwpn,
1076         &class_device_attr_lpfc_soft_wwn_enable,
1077         NULL,
1078 };
1079
1080 static ssize_t
1081 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1082 {
1083         size_t buf_off;
1084         struct Scsi_Host *host = class_to_shost(container_of(kobj,
1085                                              struct class_device, kobj));
1086         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1087
1088         if ((off + count) > FF_REG_AREA_SIZE)
1089                 return -ERANGE;
1090
1091         if (count == 0) return 0;
1092
1093         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1094                 return -EINVAL;
1095
1096         spin_lock_irq(phba->host->host_lock);
1097
1098         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1099                 spin_unlock_irq(phba->host->host_lock);
1100                 return -EPERM;
1101         }
1102
1103         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1104                 writel(*((uint32_t *)(buf + buf_off)),
1105                        phba->ctrl_regs_memmap_p + off + buf_off);
1106
1107         spin_unlock_irq(phba->host->host_lock);
1108
1109         return count;
1110 }
1111
1112 static ssize_t
1113 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1114 {
1115         size_t buf_off;
1116         uint32_t * tmp_ptr;
1117         struct Scsi_Host *host = class_to_shost(container_of(kobj,
1118                                              struct class_device, kobj));
1119         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1120
1121         if (off > FF_REG_AREA_SIZE)
1122                 return -ERANGE;
1123
1124         if ((off + count) > FF_REG_AREA_SIZE)
1125                 count = FF_REG_AREA_SIZE - off;
1126
1127         if (count == 0) return 0;
1128
1129         if (off % 4 || count % 4 || (unsigned long)buf % 4)
1130                 return -EINVAL;
1131
1132         spin_lock_irq(phba->host->host_lock);
1133
1134         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1135                 tmp_ptr = (uint32_t *)(buf + buf_off);
1136                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1137         }
1138
1139         spin_unlock_irq(phba->host->host_lock);
1140
1141         return count;
1142 }
1143
1144 static struct bin_attribute sysfs_ctlreg_attr = {
1145         .attr = {
1146                 .name = "ctlreg",
1147                 .mode = S_IRUSR | S_IWUSR,
1148                 .owner = THIS_MODULE,
1149         },
1150         .size = 256,
1151         .read = sysfs_ctlreg_read,
1152         .write = sysfs_ctlreg_write,
1153 };
1154
1155
1156 static void
1157 sysfs_mbox_idle (struct lpfc_hba * phba)
1158 {
1159         phba->sysfs_mbox.state = SMBOX_IDLE;
1160         phba->sysfs_mbox.offset = 0;
1161
1162         if (phba->sysfs_mbox.mbox) {
1163                 mempool_free(phba->sysfs_mbox.mbox,
1164                              phba->mbox_mem_pool);
1165                 phba->sysfs_mbox.mbox = NULL;
1166         }
1167 }
1168
1169 static ssize_t
1170 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1171 {
1172         struct Scsi_Host * host =
1173                 class_to_shost(container_of(kobj, struct class_device, kobj));
1174         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
1175         struct lpfcMboxq * mbox = NULL;
1176
1177         if ((count + off) > MAILBOX_CMD_SIZE)
1178                 return -ERANGE;
1179
1180         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1181                 return -EINVAL;
1182
1183         if (count == 0)
1184                 return 0;
1185
1186         if (off == 0) {
1187                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1188                 if (!mbox)
1189                         return -ENOMEM;
1190                 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1191         }
1192
1193         spin_lock_irq(host->host_lock);
1194
1195         if (off == 0) {
1196                 if (phba->sysfs_mbox.mbox)
1197                         mempool_free(mbox, phba->mbox_mem_pool);
1198                 else
1199                         phba->sysfs_mbox.mbox = mbox;
1200                 phba->sysfs_mbox.state = SMBOX_WRITING;
1201         } else {
1202                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
1203                     phba->sysfs_mbox.offset != off           ||
1204                     phba->sysfs_mbox.mbox   == NULL ) {
1205                         sysfs_mbox_idle(phba);
1206                         spin_unlock_irq(host->host_lock);
1207                         return -EAGAIN;
1208                 }
1209         }
1210
1211         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1212                buf, count);
1213
1214         phba->sysfs_mbox.offset = off + count;
1215
1216         spin_unlock_irq(host->host_lock);
1217
1218         return count;
1219 }
1220
1221 static ssize_t
1222 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1223 {
1224         struct Scsi_Host *host =
1225                 class_to_shost(container_of(kobj, struct class_device,
1226                                             kobj));
1227         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1228         int rc;
1229
1230         if (off > sizeof(MAILBOX_t))
1231                 return -ERANGE;
1232
1233         if ((count + off) > sizeof(MAILBOX_t))
1234                 count = sizeof(MAILBOX_t) - off;
1235
1236         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
1237                 return -EINVAL;
1238
1239         if (off && count == 0)
1240                 return 0;
1241
1242         spin_lock_irq(phba->host->host_lock);
1243
1244         if (off == 0 &&
1245             phba->sysfs_mbox.state  == SMBOX_WRITING &&
1246             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1247
1248                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1249                         /* Offline only */
1250                 case MBX_WRITE_NV:
1251                 case MBX_INIT_LINK:
1252                 case MBX_DOWN_LINK:
1253                 case MBX_CONFIG_LINK:
1254                 case MBX_CONFIG_RING:
1255                 case MBX_RESET_RING:
1256                 case MBX_UNREG_LOGIN:
1257                 case MBX_CLEAR_LA:
1258                 case MBX_DUMP_CONTEXT:
1259                 case MBX_RUN_DIAGS:
1260                 case MBX_RESTART:
1261                 case MBX_FLASH_WR_ULA:
1262                 case MBX_SET_MASK:
1263                 case MBX_SET_SLIM:
1264                 case MBX_SET_DEBUG:
1265                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1266                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
1267                                        "is illegal in on-line state\n",
1268                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
1269                                 sysfs_mbox_idle(phba);
1270                                 spin_unlock_irq(phba->host->host_lock);
1271                                 return -EPERM;
1272                         }
1273                 case MBX_LOAD_SM:
1274                 case MBX_READ_NV:
1275                 case MBX_READ_CONFIG:
1276                 case MBX_READ_RCONFIG:
1277                 case MBX_READ_STATUS:
1278                 case MBX_READ_XRI:
1279                 case MBX_READ_REV:
1280                 case MBX_READ_LNK_STAT:
1281                 case MBX_DUMP_MEMORY:
1282                 case MBX_DOWN_LOAD:
1283                 case MBX_UPDATE_CFG:
1284                 case MBX_KILL_BOARD:
1285                 case MBX_LOAD_AREA:
1286                 case MBX_LOAD_EXP_ROM:
1287                 case MBX_BEACON:
1288                 case MBX_DEL_LD_ENTRY:
1289                         break;
1290                 case MBX_READ_SPARM64:
1291                 case MBX_READ_LA:
1292                 case MBX_READ_LA64:
1293                 case MBX_REG_LOGIN:
1294                 case MBX_REG_LOGIN64:
1295                 case MBX_CONFIG_PORT:
1296                 case MBX_RUN_BIU_DIAG:
1297                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1298                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1299                         sysfs_mbox_idle(phba);
1300                         spin_unlock_irq(phba->host->host_lock);
1301                         return -EPERM;
1302                 default:
1303                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1304                                phba->sysfs_mbox.mbox->mb.mbxCommand);
1305                         sysfs_mbox_idle(phba);
1306                         spin_unlock_irq(phba->host->host_lock);
1307                         return -EPERM;
1308                 }
1309
1310                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1311                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1312
1313                         spin_unlock_irq(phba->host->host_lock);
1314                         rc = lpfc_sli_issue_mbox (phba,
1315                                                   phba->sysfs_mbox.mbox,
1316                                                   MBX_POLL);
1317                         spin_lock_irq(phba->host->host_lock);
1318
1319                 } else {
1320                         spin_unlock_irq(phba->host->host_lock);
1321                         rc = lpfc_sli_issue_mbox_wait (phba,
1322                                                        phba->sysfs_mbox.mbox,
1323                                 lpfc_mbox_tmo_val(phba,
1324                                     phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1325                         spin_lock_irq(phba->host->host_lock);
1326                 }
1327
1328                 if (rc != MBX_SUCCESS) {
1329                         sysfs_mbox_idle(phba);
1330                         spin_unlock_irq(host->host_lock);
1331                         return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1332                 }
1333                 phba->sysfs_mbox.state = SMBOX_READING;
1334         }
1335         else if (phba->sysfs_mbox.offset != off ||
1336                  phba->sysfs_mbox.state  != SMBOX_READING) {
1337                 printk(KERN_WARNING  "mbox_read: Bad State\n");
1338                 sysfs_mbox_idle(phba);
1339                 spin_unlock_irq(host->host_lock);
1340                 return -EAGAIN;
1341         }
1342
1343         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1344
1345         phba->sysfs_mbox.offset = off + count;
1346
1347         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1348                 sysfs_mbox_idle(phba);
1349
1350         spin_unlock_irq(phba->host->host_lock);
1351
1352         return count;
1353 }
1354
1355 static struct bin_attribute sysfs_mbox_attr = {
1356         .attr = {
1357                 .name = "mbox",
1358                 .mode = S_IRUSR | S_IWUSR,
1359                 .owner = THIS_MODULE,
1360         },
1361         .size = sizeof(MAILBOX_t),
1362         .read = sysfs_mbox_read,
1363         .write = sysfs_mbox_write,
1364 };
1365
1366 int
1367 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1368 {
1369         struct Scsi_Host *host = phba->host;
1370         int error;
1371
1372         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1373                                                         &sysfs_ctlreg_attr);
1374         if (error)
1375                 goto out;
1376
1377         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1378                                                         &sysfs_mbox_attr);
1379         if (error)
1380                 goto out_remove_ctlreg_attr;
1381
1382         return 0;
1383 out_remove_ctlreg_attr:
1384         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1385 out:
1386         return error;
1387 }
1388
1389 void
1390 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1391 {
1392         struct Scsi_Host *host = phba->host;
1393
1394         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1395         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1396 }
1397
1398
1399 /*
1400  * Dynamic FC Host Attributes Support
1401  */
1402
1403 static void
1404 lpfc_get_host_port_id(struct Scsi_Host *shost)
1405 {
1406         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1407         /* note: fc_myDID already in cpu endianness */
1408         fc_host_port_id(shost) = phba->fc_myDID;
1409 }
1410
1411 static void
1412 lpfc_get_host_port_type(struct Scsi_Host *shost)
1413 {
1414         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1415
1416         spin_lock_irq(shost->host_lock);
1417
1418         if (phba->hba_state == LPFC_HBA_READY) {
1419                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1420                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1421                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1422                         else
1423                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1424                 } else {
1425                         if (phba->fc_flag & FC_FABRIC)
1426                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1427                         else
1428                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1429                 }
1430         } else
1431                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1432
1433         spin_unlock_irq(shost->host_lock);
1434 }
1435
1436 static void
1437 lpfc_get_host_port_state(struct Scsi_Host *shost)
1438 {
1439         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1440
1441         spin_lock_irq(shost->host_lock);
1442
1443         if (phba->fc_flag & FC_OFFLINE_MODE)
1444                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1445         else {
1446                 switch (phba->hba_state) {
1447                 case LPFC_STATE_UNKNOWN:
1448                 case LPFC_WARM_START:
1449                 case LPFC_INIT_START:
1450                 case LPFC_INIT_MBX_CMDS:
1451                 case LPFC_LINK_DOWN:
1452                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1453                         break;
1454                 case LPFC_LINK_UP:
1455                 case LPFC_LOCAL_CFG_LINK:
1456                 case LPFC_FLOGI:
1457                 case LPFC_FABRIC_CFG_LINK:
1458                 case LPFC_NS_REG:
1459                 case LPFC_NS_QRY:
1460                 case LPFC_BUILD_DISC_LIST:
1461                 case LPFC_DISC_AUTH:
1462                 case LPFC_CLEAR_LA:
1463                 case LPFC_HBA_READY:
1464                         /* Links up, beyond this port_type reports state */
1465                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1466                         break;
1467                 case LPFC_HBA_ERROR:
1468                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1469                         break;
1470                 default:
1471                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1472                         break;
1473                 }
1474         }
1475
1476         spin_unlock_irq(shost->host_lock);
1477 }
1478
1479 static void
1480 lpfc_get_host_speed(struct Scsi_Host *shost)
1481 {
1482         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1483
1484         spin_lock_irq(shost->host_lock);
1485
1486         if (phba->hba_state == LPFC_HBA_READY) {
1487                 switch(phba->fc_linkspeed) {
1488                         case LA_1GHZ_LINK:
1489                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1490                         break;
1491                         case LA_2GHZ_LINK:
1492                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1493                         break;
1494                         case LA_4GHZ_LINK:
1495                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1496                         break;
1497                         default:
1498                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1499                         break;
1500                 }
1501         }
1502
1503         spin_unlock_irq(shost->host_lock);
1504 }
1505
1506 static void
1507 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1508 {
1509         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1510         u64 node_name;
1511
1512         spin_lock_irq(shost->host_lock);
1513
1514         if ((phba->fc_flag & FC_FABRIC) ||
1515             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1516              (phba->fc_flag & FC_PUBLIC_LOOP)))
1517                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1518         else
1519                 /* fabric is local port if there is no F/FL_Port */
1520                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1521
1522         spin_unlock_irq(shost->host_lock);
1523
1524         fc_host_fabric_name(shost) = node_name;
1525 }
1526
1527 static void
1528 lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
1529 {
1530         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1531
1532         spin_lock_irq(shost->host_lock);
1533         lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
1534         spin_unlock_irq(shost->host_lock);
1535 }
1536
1537 static struct fc_host_statistics *
1538 lpfc_get_stats(struct Scsi_Host *shost)
1539 {
1540         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1541         struct lpfc_sli *psli = &phba->sli;
1542         struct fc_host_statistics *hs = &phba->link_stats;
1543         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1544         LPFC_MBOXQ_t *pmboxq;
1545         MAILBOX_t *pmb;
1546         unsigned long seconds;
1547         int rc = 0;
1548
1549         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1550         if (!pmboxq)
1551                 return NULL;
1552         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1553
1554         pmb = &pmboxq->mb;
1555         pmb->mbxCommand = MBX_READ_STATUS;
1556         pmb->mbxOwner = OWN_HOST;
1557         pmboxq->context1 = NULL;
1558
1559         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1560                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1561                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1562         else
1563                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1564
1565         if (rc != MBX_SUCCESS) {
1566                 if (rc == MBX_TIMEOUT)
1567                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1568                 else
1569                         mempool_free(pmboxq, phba->mbox_mem_pool);
1570                 return NULL;
1571         }
1572
1573         memset(hs, 0, sizeof (struct fc_host_statistics));
1574
1575         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1576         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1577         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1578         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1579
1580         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1581         pmb->mbxCommand = MBX_READ_LNK_STAT;
1582         pmb->mbxOwner = OWN_HOST;
1583         pmboxq->context1 = NULL;
1584
1585         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1586             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1587                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1588         else
1589                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1590
1591         if (rc != MBX_SUCCESS) {
1592                 if (rc == MBX_TIMEOUT)
1593                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1594                 else
1595                         mempool_free( pmboxq, phba->mbox_mem_pool);
1596                 return NULL;
1597         }
1598
1599         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1600         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1601         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1602         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1603         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1604         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1605         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1606
1607         hs->link_failure_count -= lso->link_failure_count;
1608         hs->loss_of_sync_count -= lso->loss_of_sync_count;
1609         hs->loss_of_signal_count -= lso->loss_of_signal_count;
1610         hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1611         hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1612         hs->invalid_crc_count -= lso->invalid_crc_count;
1613         hs->error_frames -= lso->error_frames;
1614
1615         if (phba->fc_topology == TOPOLOGY_LOOP) {
1616                 hs->lip_count = (phba->fc_eventTag >> 1);
1617                 hs->lip_count -= lso->link_events;
1618                 hs->nos_count = -1;
1619         } else {
1620                 hs->lip_count = -1;
1621                 hs->nos_count = (phba->fc_eventTag >> 1);
1622                 hs->nos_count -= lso->link_events;
1623         }
1624
1625         hs->dumped_frames = -1;
1626
1627         seconds = get_seconds();
1628         if (seconds < psli->stats_start)
1629                 hs->seconds_since_last_reset = seconds +
1630                                 ((unsigned long)-1 - psli->stats_start);
1631         else
1632                 hs->seconds_since_last_reset = seconds - psli->stats_start;
1633
1634         return hs;
1635 }
1636
1637 static void
1638 lpfc_reset_stats(struct Scsi_Host *shost)
1639 {
1640         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1641         struct lpfc_sli *psli = &phba->sli;
1642         struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1643         LPFC_MBOXQ_t *pmboxq;
1644         MAILBOX_t *pmb;
1645         int rc = 0;
1646
1647         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1648         if (!pmboxq)
1649                 return;
1650         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1651
1652         pmb = &pmboxq->mb;
1653         pmb->mbxCommand = MBX_READ_STATUS;
1654         pmb->mbxOwner = OWN_HOST;
1655         pmb->un.varWords[0] = 0x1; /* reset request */
1656         pmboxq->context1 = NULL;
1657
1658         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1659                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1660                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1661         else
1662                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1663
1664         if (rc != MBX_SUCCESS) {
1665                 if (rc == MBX_TIMEOUT)
1666                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1667                 else
1668                         mempool_free(pmboxq, phba->mbox_mem_pool);
1669                 return;
1670         }
1671
1672         memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1673         pmb->mbxCommand = MBX_READ_LNK_STAT;
1674         pmb->mbxOwner = OWN_HOST;
1675         pmboxq->context1 = NULL;
1676
1677         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1678             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1679                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1680         else
1681                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1682
1683         if (rc != MBX_SUCCESS) {
1684                 if (rc == MBX_TIMEOUT)
1685                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1686                 else
1687                         mempool_free( pmboxq, phba->mbox_mem_pool);
1688                 return;
1689         }
1690
1691         lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1692         lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1693         lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1694         lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1695         lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1696         lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1697         lso->error_frames = pmb->un.varRdLnk.crcCnt;
1698         lso->link_events = (phba->fc_eventTag >> 1);
1699
1700         psli->stats_start = get_seconds();
1701
1702         return;
1703 }
1704
1705 /*
1706  * The LPFC driver treats linkdown handling as target loss events so there
1707  * are no sysfs handlers for link_down_tmo.
1708  */
1709 static void
1710 lpfc_get_starget_port_id(struct scsi_target *starget)
1711 {
1712         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1713         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1714         uint32_t did = -1;
1715         struct lpfc_nodelist *ndlp = NULL;
1716
1717         spin_lock_irq(shost->host_lock);
1718         /* Search the mapped list for this target ID */
1719         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1720                 if (starget->id == ndlp->nlp_sid) {
1721                         did = ndlp->nlp_DID;
1722                         break;
1723                 }
1724         }
1725         spin_unlock_irq(shost->host_lock);
1726
1727         fc_starget_port_id(starget) = did;
1728 }
1729
1730 static void
1731 lpfc_get_starget_node_name(struct scsi_target *starget)
1732 {
1733         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1734         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1735         u64 node_name = 0;
1736         struct lpfc_nodelist *ndlp = NULL;
1737
1738         spin_lock_irq(shost->host_lock);
1739         /* Search the mapped list for this target ID */
1740         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1741                 if (starget->id == ndlp->nlp_sid) {
1742                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1743                         break;
1744                 }
1745         }
1746         spin_unlock_irq(shost->host_lock);
1747
1748         fc_starget_node_name(starget) = node_name;
1749 }
1750
1751 static void
1752 lpfc_get_starget_port_name(struct scsi_target *starget)
1753 {
1754         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1755         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1756         u64 port_name = 0;
1757         struct lpfc_nodelist *ndlp = NULL;
1758
1759         spin_lock_irq(shost->host_lock);
1760         /* Search the mapped list for this target ID */
1761         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1762                 if (starget->id == ndlp->nlp_sid) {
1763                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1764                         break;
1765                 }
1766         }
1767         spin_unlock_irq(shost->host_lock);
1768
1769         fc_starget_port_name(starget) = port_name;
1770 }
1771
1772 static void
1773 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1774 {
1775         if (timeout)
1776                 rport->dev_loss_tmo = timeout;
1777         else
1778                 rport->dev_loss_tmo = 1;
1779 }
1780
1781
1782 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1783 static ssize_t                                                          \
1784 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1785 {                                                                       \
1786         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1787         struct lpfc_rport_data *rdata = rport->hostdata;                \
1788         return snprintf(buf, sz, format_string,                         \
1789                 (rdata->target) ? cast rdata->target->field : 0);       \
1790 }
1791
1792 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1793         lpfc_rport_show_function(field, format_string, sz, )            \
1794 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1795
1796
1797 struct fc_function_template lpfc_transport_functions = {
1798         /* fixed attributes the driver supports */
1799         .show_host_node_name = 1,
1800         .show_host_port_name = 1,
1801         .show_host_supported_classes = 1,
1802         .show_host_supported_fc4s = 1,
1803         .show_host_supported_speeds = 1,
1804         .show_host_maxframe_size = 1,
1805
1806         /* dynamic attributes the driver supports */
1807         .get_host_port_id = lpfc_get_host_port_id,
1808         .show_host_port_id = 1,
1809
1810         .get_host_port_type = lpfc_get_host_port_type,
1811         .show_host_port_type = 1,
1812
1813         .get_host_port_state = lpfc_get_host_port_state,
1814         .show_host_port_state = 1,
1815
1816         /* active_fc4s is shown but doesn't change (thus no get function) */
1817         .show_host_active_fc4s = 1,
1818
1819         .get_host_speed = lpfc_get_host_speed,
1820         .show_host_speed = 1,
1821
1822         .get_host_fabric_name = lpfc_get_host_fabric_name,
1823         .show_host_fabric_name = 1,
1824
1825         .get_host_symbolic_name = lpfc_get_host_symbolic_name,
1826         .show_host_symbolic_name = 1,
1827
1828         /*
1829          * The LPFC driver treats linkdown handling as target loss events
1830          * so there are no sysfs handlers for link_down_tmo.
1831          */
1832
1833         .get_fc_host_stats = lpfc_get_stats,
1834         .reset_fc_host_stats = lpfc_reset_stats,
1835
1836         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1837         .show_rport_maxframe_size = 1,
1838         .show_rport_supported_classes = 1,
1839
1840         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1841         .show_rport_dev_loss_tmo = 1,
1842
1843         .get_starget_port_id  = lpfc_get_starget_port_id,
1844         .show_starget_port_id = 1,
1845
1846         .get_starget_node_name = lpfc_get_starget_node_name,
1847         .show_starget_node_name = 1,
1848
1849         .get_starget_port_name = lpfc_get_starget_port_name,
1850         .show_starget_port_name = 1,
1851
1852         .issue_fc_host_lip = lpfc_issue_lip,
1853         .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
1854         .terminate_rport_io = lpfc_terminate_rport_io,
1855 };
1856
1857 void
1858 lpfc_get_cfgparam(struct lpfc_hba *phba)
1859 {
1860         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1861         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1862         lpfc_cr_count_init(phba, lpfc_cr_count);
1863         lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1864         lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
1865         lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
1866         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1867         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1868         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1869         lpfc_ack0_init(phba, lpfc_ack0);
1870         lpfc_topology_init(phba, lpfc_topology);
1871         lpfc_scan_down_init(phba, lpfc_scan_down);
1872         lpfc_link_speed_init(phba, lpfc_link_speed);
1873         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1874         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1875         lpfc_max_luns_init(phba, lpfc_max_luns);
1876         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1877         lpfc_use_msi_init(phba, lpfc_use_msi);
1878         lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
1879         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1880         phba->cfg_poll = lpfc_poll;
1881         phba->cfg_soft_wwnn = 0L;
1882         phba->cfg_soft_wwpn = 0L;
1883
1884         /*
1885          * The total number of segments is the configuration value plus 2
1886          * since the IOCB need a command and response bde.
1887          */
1888         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1889
1890         /*
1891          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1892          * used to create the sg_dma_buf_pool must be dynamically calculated
1893          */
1894         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1895                         sizeof(struct fcp_rsp) +
1896                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1897
1898         switch (phba->pcidev->device) {
1899         case PCI_DEVICE_ID_LP101:
1900         case PCI_DEVICE_ID_BSMB:
1901         case PCI_DEVICE_ID_ZSMB:
1902                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1903                 break;
1904         case PCI_DEVICE_ID_RFLY:
1905         case PCI_DEVICE_ID_PFLY:
1906         case PCI_DEVICE_ID_BMID:
1907         case PCI_DEVICE_ID_ZMID:
1908         case PCI_DEVICE_ID_TFLY:
1909                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1910                 break;
1911         default:
1912                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1913         }
1914
1915         if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1916                 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1917
1918         return;
1919 }