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[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) 2004-2006 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
43 static void
44 lpfc_jedec_to_ascii(int incr, char hdw[])
45 {
46         int i, j;
47         for (i = 0; i < 8; i++) {
48                 j = (incr & 0xf);
49                 if (j <= 9)
50                         hdw[7 - i] = 0x30 +  j;
51                  else
52                         hdw[7 - i] = 0x61 + j - 10;
53                 incr = (incr >> 4);
54         }
55         hdw[8] = 0;
56         return;
57 }
58
59 static ssize_t
60 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
61 {
62         return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
63 }
64
65 static ssize_t
66 management_version_show(struct class_device *cdev, char *buf)
67 {
68         return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
69 }
70
71 static ssize_t
72 lpfc_info_show(struct class_device *cdev, char *buf)
73 {
74         struct Scsi_Host *host = class_to_shost(cdev);
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 *host = class_to_shost(cdev);
82         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
83         return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
84 }
85
86 static ssize_t
87 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
88 {
89         struct Scsi_Host *host = class_to_shost(cdev);
90         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
91         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
92 }
93
94 static ssize_t
95 lpfc_modelname_show(struct class_device *cdev, char *buf)
96 {
97         struct Scsi_Host *host = class_to_shost(cdev);
98         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
99         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
100 }
101
102 static ssize_t
103 lpfc_programtype_show(struct class_device *cdev, char *buf)
104 {
105         struct Scsi_Host *host = class_to_shost(cdev);
106         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
107         return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
108 }
109
110 static ssize_t
111 lpfc_portnum_show(struct class_device *cdev, char *buf)
112 {
113         struct Scsi_Host *host = class_to_shost(cdev);
114         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
115         return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
116 }
117
118 static ssize_t
119 lpfc_fwrev_show(struct class_device *cdev, char *buf)
120 {
121         struct Scsi_Host *host = class_to_shost(cdev);
122         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
123         char fwrev[32];
124         lpfc_decode_firmware_rev(phba, fwrev, 1);
125         return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
126 }
127
128 static ssize_t
129 lpfc_hdw_show(struct class_device *cdev, char *buf)
130 {
131         char hdw[9];
132         struct Scsi_Host *host = class_to_shost(cdev);
133         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
134         lpfc_vpd_t *vp = &phba->vpd;
135         lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
136         return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
137 }
138 static ssize_t
139 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
140 {
141         struct Scsi_Host *host = class_to_shost(cdev);
142         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
143         return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
144 }
145 static ssize_t
146 lpfc_state_show(struct class_device *cdev, char *buf)
147 {
148         struct Scsi_Host *host = class_to_shost(cdev);
149         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
150         int len = 0;
151         switch (phba->hba_state) {
152         case LPFC_STATE_UNKNOWN:
153         case LPFC_WARM_START:
154         case LPFC_INIT_START:
155         case LPFC_INIT_MBX_CMDS:
156         case LPFC_LINK_DOWN:
157                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
158                 break;
159         case LPFC_LINK_UP:
160         case LPFC_LOCAL_CFG_LINK:
161                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
162                 break;
163         case LPFC_FLOGI:
164         case LPFC_FABRIC_CFG_LINK:
165         case LPFC_NS_REG:
166         case LPFC_NS_QRY:
167         case LPFC_BUILD_DISC_LIST:
168         case LPFC_DISC_AUTH:
169         case LPFC_CLEAR_LA:
170                 len += snprintf(buf + len, PAGE_SIZE-len,
171                                 "Link Up - Discovery\n");
172                 break;
173         case LPFC_HBA_READY:
174                 len += snprintf(buf + len, PAGE_SIZE-len,
175                                 "Link Up - Ready:\n");
176                 if (phba->fc_topology == TOPOLOGY_LOOP) {
177                         if (phba->fc_flag & FC_PUBLIC_LOOP)
178                                 len += snprintf(buf + len, PAGE_SIZE-len,
179                                                 "   Public Loop\n");
180                         else
181                                 len += snprintf(buf + len, PAGE_SIZE-len,
182                                                 "   Private Loop\n");
183                 } else {
184                         if (phba->fc_flag & FC_FABRIC)
185                                 len += snprintf(buf + len, PAGE_SIZE-len,
186                                                 "   Fabric\n");
187                         else
188                                 len += snprintf(buf + len, PAGE_SIZE-len,
189                                                 "   Point-2-Point\n");
190                 }
191         }
192         return len;
193 }
194
195 static ssize_t
196 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
197 {
198         struct Scsi_Host *host = class_to_shost(cdev);
199         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
200         return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
201                                                         phba->fc_unmap_cnt);
202 }
203
204
205 static int
206 lpfc_issue_lip(struct Scsi_Host *host)
207 {
208         struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
209         LPFC_MBOXQ_t *pmboxq;
210         int mbxstatus = MBXERR_ERROR;
211
212         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
213             (phba->hba_state != LPFC_HBA_READY))
214                 return -EPERM;
215
216         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
217
218         if (!pmboxq)
219                 return -ENOMEM;
220
221         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
222         lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
223         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
224
225         if (mbxstatus == MBX_TIMEOUT)
226                 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
227         else
228                 mempool_free(pmboxq, phba->mbox_mem_pool);
229
230         if (mbxstatus == MBXERR_ERROR)
231                 return -EIO;
232
233         return 0;
234 }
235
236 static ssize_t
237 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
238 {
239         struct Scsi_Host *host = class_to_shost(cdev);
240         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
241         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
242 }
243
244 static ssize_t
245 lpfc_board_online_show(struct class_device *cdev, char *buf)
246 {
247         struct Scsi_Host *host = class_to_shost(cdev);
248         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
249
250         if (phba->fc_flag & FC_OFFLINE_MODE)
251                 return snprintf(buf, PAGE_SIZE, "0\n");
252         else
253                 return snprintf(buf, PAGE_SIZE, "1\n");
254 }
255
256 static ssize_t
257 lpfc_board_online_store(struct class_device *cdev, const char *buf,
258                                                                 size_t count)
259 {
260         struct Scsi_Host *host = class_to_shost(cdev);
261         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
262         struct completion online_compl;
263         int val=0, status=0;
264
265         if (sscanf(buf, "%d", &val) != 1)
266                 return -EINVAL;
267
268         init_completion(&online_compl);
269
270         if (val)
271                 lpfc_workq_post_event(phba, &status, &online_compl,
272                                                         LPFC_EVT_ONLINE);
273         else
274                 lpfc_workq_post_event(phba, &status, &online_compl,
275                                                         LPFC_EVT_OFFLINE);
276         wait_for_completion(&online_compl);
277         if (!status)
278                 return strlen(buf);
279         else
280                 return -EIO;
281 }
282
283 static ssize_t
284 lpfc_board_mode_show(struct class_device *cdev, char *buf)
285 {
286         struct Scsi_Host *host = class_to_shost(cdev);
287         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
288         char  * state;
289
290         if (phba->hba_state == LPFC_HBA_ERROR)
291                 state = "error";
292         else if (phba->hba_state == LPFC_WARM_START)
293                 state = "warm start";
294         else if (phba->hba_state == LPFC_INIT_START)
295                 state = "offline";
296         else
297                 state = "online";
298
299         return snprintf(buf, PAGE_SIZE, "%s\n", state);
300 }
301
302 static ssize_t
303 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
304 {
305         struct Scsi_Host *host = class_to_shost(cdev);
306         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
307         struct completion online_compl;
308         int status=0;
309
310         init_completion(&online_compl);
311
312         if(strncmp(buf, "online", sizeof("online") - 1) == 0)
313                 lpfc_workq_post_event(phba, &status, &online_compl,
314                                       LPFC_EVT_ONLINE);
315         else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
316                 lpfc_workq_post_event(phba, &status, &online_compl,
317                                       LPFC_EVT_OFFLINE);
318         else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
319                 lpfc_workq_post_event(phba, &status, &online_compl,
320                                       LPFC_EVT_WARM_START);
321         else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
322                 lpfc_workq_post_event(phba, &status, &online_compl,
323                                       LPFC_EVT_KILL);
324         else
325                 return -EINVAL;
326
327         wait_for_completion(&online_compl);
328
329         if (!status)
330                 return strlen(buf);
331         else
332                 return -EIO;
333 }
334
335 static ssize_t
336 lpfc_poll_show(struct class_device *cdev, char *buf)
337 {
338         struct Scsi_Host *host = class_to_shost(cdev);
339         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
340
341         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
342 }
343
344 static ssize_t
345 lpfc_poll_store(struct class_device *cdev, const char *buf,
346                 size_t count)
347 {
348         struct Scsi_Host *host = class_to_shost(cdev);
349         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
350         uint32_t creg_val;
351         uint32_t old_val;
352         int val=0;
353
354         if (!isdigit(buf[0]))
355                 return -EINVAL;
356
357         if (sscanf(buf, "%i", &val) != 1)
358                 return -EINVAL;
359
360         if ((val & 0x3) != val)
361                 return -EINVAL;
362
363         spin_lock_irq(phba->host->host_lock);
364
365         old_val = phba->cfg_poll;
366
367         if (val & ENABLE_FCP_RING_POLLING) {
368                 if ((val & DISABLE_FCP_RING_INT) &&
369                     !(old_val & DISABLE_FCP_RING_INT)) {
370                         creg_val = readl(phba->HCregaddr);
371                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
372                         writel(creg_val, phba->HCregaddr);
373                         readl(phba->HCregaddr); /* flush */
374
375                         lpfc_poll_start_timer(phba);
376                 }
377         } else if (val != 0x0) {
378                 spin_unlock_irq(phba->host->host_lock);
379                 return -EINVAL;
380         }
381
382         if (!(val & DISABLE_FCP_RING_INT) &&
383             (old_val & DISABLE_FCP_RING_INT))
384         {
385                 spin_unlock_irq(phba->host->host_lock);
386                 del_timer(&phba->fcp_poll_timer);
387                 spin_lock_irq(phba->host->host_lock);
388                 creg_val = readl(phba->HCregaddr);
389                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
390                 writel(creg_val, phba->HCregaddr);
391                 readl(phba->HCregaddr); /* flush */
392         }
393
394         phba->cfg_poll = val;
395
396         spin_unlock_irq(phba->host->host_lock);
397
398         return strlen(buf);
399 }
400
401 #define lpfc_param_show(attr)   \
402 static ssize_t \
403 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
404 { \
405         struct Scsi_Host *host = class_to_shost(cdev);\
406         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
407         int val = 0;\
408         val = phba->cfg_##attr;\
409         return snprintf(buf, PAGE_SIZE, "%d\n",\
410                         phba->cfg_##attr);\
411 }
412
413 #define lpfc_param_hex_show(attr)       \
414 static ssize_t \
415 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
416 { \
417         struct Scsi_Host *host = class_to_shost(cdev);\
418         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
419         int val = 0;\
420         val = phba->cfg_##attr;\
421         return snprintf(buf, PAGE_SIZE, "%#x\n",\
422                         phba->cfg_##attr);\
423 }
424
425 #define lpfc_param_init(attr, default, minval, maxval)  \
426 static int \
427 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
428 { \
429         if (val >= minval && val <= maxval) {\
430                 phba->cfg_##attr = val;\
431                 return 0;\
432         }\
433         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
434                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
435                         "allowed range is ["#minval", "#maxval"]\n", \
436                         phba->brd_no, val); \
437         phba->cfg_##attr = default;\
438         return -EINVAL;\
439 }
440
441 #define lpfc_param_set(attr, default, minval, maxval)   \
442 static int \
443 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
444 { \
445         if (val >= minval && val <= maxval) {\
446                 phba->cfg_##attr = val;\
447                 return 0;\
448         }\
449         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
450                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
451                         "allowed range is ["#minval", "#maxval"]\n", \
452                         phba->brd_no, val); \
453         return -EINVAL;\
454 }
455
456 #define lpfc_param_store(attr)  \
457 static ssize_t \
458 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
459 { \
460         struct Scsi_Host *host = class_to_shost(cdev);\
461         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
462         int val=0;\
463         if (!isdigit(buf[0]))\
464                 return -EINVAL;\
465         if (sscanf(buf, "%i", &val) != 1)\
466                 return -EINVAL;\
467         if (lpfc_##attr##_set(phba, val) == 0) \
468                 return strlen(buf);\
469         else \
470                 return -EINVAL;\
471 }
472
473 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
474 static int lpfc_##name = defval;\
475 module_param(lpfc_##name, int, 0);\
476 MODULE_PARM_DESC(lpfc_##name, desc);\
477 lpfc_param_init(name, defval, minval, maxval)
478
479 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
480 static int lpfc_##name = defval;\
481 module_param(lpfc_##name, int, 0);\
482 MODULE_PARM_DESC(lpfc_##name, desc);\
483 lpfc_param_show(name)\
484 lpfc_param_init(name, defval, minval, maxval)\
485 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
486
487 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
488 static int lpfc_##name = defval;\
489 module_param(lpfc_##name, int, 0);\
490 MODULE_PARM_DESC(lpfc_##name, desc);\
491 lpfc_param_show(name)\
492 lpfc_param_init(name, defval, minval, maxval)\
493 lpfc_param_set(name, defval, minval, maxval)\
494 lpfc_param_store(name)\
495 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
496                          lpfc_##name##_show, lpfc_##name##_store)
497
498 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
499 static int lpfc_##name = defval;\
500 module_param(lpfc_##name, int, 0);\
501 MODULE_PARM_DESC(lpfc_##name, desc);\
502 lpfc_param_hex_show(name)\
503 lpfc_param_init(name, defval, minval, maxval)\
504 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
505
506 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
507 static int lpfc_##name = defval;\
508 module_param(lpfc_##name, int, 0);\
509 MODULE_PARM_DESC(lpfc_##name, desc);\
510 lpfc_param_hex_show(name)\
511 lpfc_param_init(name, defval, minval, maxval)\
512 lpfc_param_set(name, defval, minval, maxval)\
513 lpfc_param_store(name)\
514 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
515                          lpfc_##name##_show, lpfc_##name##_store)
516
517 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
518 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
519 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
520 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
521 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
522 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
523 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
524 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
525 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
526 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
527                                         lpfc_option_rom_version_show, NULL);
528 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
529                                         lpfc_num_discovered_ports_show, NULL);
530 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
531 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
532                          NULL);
533 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
534                          NULL);
535 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
536                          lpfc_board_online_show, lpfc_board_online_store);
537 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
538                          lpfc_board_mode_show, lpfc_board_mode_store);
539
540 static int lpfc_poll = 0;
541 module_param(lpfc_poll, int, 0);
542 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
543                  " 0 - none,"
544                  " 1 - poll with interrupts enabled"
545                  " 3 - poll and disable FCP ring interrupts");
546
547 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
548                          lpfc_poll_show, lpfc_poll_store);
549
550 /*
551 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
552 # deluged with LOTS of information.
553 # You can set a bit mask to record specific types of verbose messages:
554 #
555 # LOG_ELS                       0x1        ELS events
556 # LOG_DISCOVERY                 0x2        Link discovery events
557 # LOG_MBOX                      0x4        Mailbox events
558 # LOG_INIT                      0x8        Initialization events
559 # LOG_LINK_EVENT                0x10       Link events
560 # LOG_IP                        0x20       IP traffic history
561 # LOG_FCP                       0x40       FCP traffic history
562 # LOG_NODE                      0x80       Node table events
563 # LOG_MISC                      0x400      Miscellaneous events
564 # LOG_SLI                       0x800      SLI events
565 # LOG_CHK_COND                  0x1000     FCP Check condition flag
566 # LOG_LIBDFC                    0x2000     LIBDFC events
567 # LOG_ALL_MSG                   0xffff     LOG all messages
568 */
569 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
570
571 /*
572 # lun_queue_depth:  This parameter is used to limit the number of outstanding
573 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
574 */
575 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
576             "Max number of FCP commands we can queue to a specific LUN");
577
578 /*
579 # hba_queue_depth:  This parameter is used to limit the number of outstanding
580 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
581 # value is greater than the maximum number of exchanges supported by the HBA,
582 # then maximum number of exchanges supported by the HBA is used to determine
583 # the hba_queue_depth.
584 */
585 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
586             "Max number of FCP commands we can queue to a lpfc HBA");
587
588 /*
589 # Some disk devices have a "select ID" or "select Target" capability.
590 # From a protocol standpoint "select ID" usually means select the
591 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
592 # annex" which contains a table that maps a "select ID" (a number
593 # between 0 and 7F) to an ALPA.  By default, for compatibility with
594 # older drivers, the lpfc driver scans this table from low ALPA to high
595 # ALPA.
596 #
597 # Turning on the scan-down variable (on  = 1, off = 0) will
598 # cause the lpfc driver to use an inverted table, effectively
599 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
600 #
601 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
602 # and will not work across a fabric. Also this parameter will take
603 # effect only in the case when ALPA map is not available.)
604 */
605 LPFC_ATTR_R(scan_down, 1, 0, 1,
606              "Start scanning for devices from highest ALPA to lowest");
607
608 /*
609 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
610 # until the timer expires. Value range is [0,255]. Default value is 30.
611 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
612 */
613 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
614              "Seconds driver will hold I/O waiting for a device to come back");
615
616 /*
617 # lpfc_topology:  link topology for init link
618 #            0x0  = attempt loop mode then point-to-point
619 #            0x01 = internal loopback mode
620 #            0x02 = attempt point-to-point mode only
621 #            0x04 = attempt loop mode only
622 #            0x06 = attempt point-to-point mode then loop
623 # Set point-to-point mode if you want to run as an N_Port.
624 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
625 # Default value is 0.
626 */
627 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
628
629 /*
630 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
631 # connection.
632 #       0  = auto select (default)
633 #       1  = 1 Gigabaud
634 #       2  = 2 Gigabaud
635 #       4  = 4 Gigabaud
636 # Value range is [0,4]. Default value is 0.
637 */
638 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
639
640 /*
641 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
642 # Value range is [2,3]. Default value is 3.
643 */
644 LPFC_ATTR_R(fcp_class, 3, 2, 3,
645              "Select Fibre Channel class of service for FCP sequences");
646
647 /*
648 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
649 # is [0,1]. Default value is 0.
650 */
651 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
652              "Use ADISC on rediscovery to authenticate FCP devices");
653
654 /*
655 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
656 # range is [0,1]. Default value is 0.
657 */
658 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
659
660 /*
661 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
662 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
663 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
664 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
665 # cr_delay is set to 0.
666 */
667 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
668                 "interrupt response is generated");
669
670 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
671                 "interrupt response is generated");
672
673 /*
674 # lpfc_fdmi_on: controls FDMI support.
675 #       0 = no FDMI support
676 #       1 = support FDMI without attribute of hostname
677 #       2 = support FDMI with attribute of hostname
678 # Value range [0,2]. Default value is 0.
679 */
680 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
681
682 /*
683 # Specifies the maximum number of ELS cmds we can have outstanding (for
684 # discovery). Value range is [1,64]. Default value = 32.
685 */
686 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
687                  "during discovery");
688
689 /*
690 # lpfc_max_luns: maximum number of LUNs per target driver will support
691 # Value range is [1,32768]. Default value is 256.
692 # NOTE: The SCSI layer will scan each target for this many luns
693 */
694 LPFC_ATTR_R(max_luns, 256, 1, 32768,
695              "Maximum number of LUNs per target driver will support");
696
697 /*
698 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
699 # Value range is [1,255], default value is 10.
700 */
701 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
702              "Milliseconds driver will wait between polling FCP ring");
703
704 struct class_device_attribute *lpfc_host_attrs[] = {
705         &class_device_attr_info,
706         &class_device_attr_serialnum,
707         &class_device_attr_modeldesc,
708         &class_device_attr_modelname,
709         &class_device_attr_programtype,
710         &class_device_attr_portnum,
711         &class_device_attr_fwrev,
712         &class_device_attr_hdw,
713         &class_device_attr_option_rom_version,
714         &class_device_attr_state,
715         &class_device_attr_num_discovered_ports,
716         &class_device_attr_lpfc_drvr_version,
717         &class_device_attr_lpfc_log_verbose,
718         &class_device_attr_lpfc_lun_queue_depth,
719         &class_device_attr_lpfc_hba_queue_depth,
720         &class_device_attr_lpfc_nodev_tmo,
721         &class_device_attr_lpfc_fcp_class,
722         &class_device_attr_lpfc_use_adisc,
723         &class_device_attr_lpfc_ack0,
724         &class_device_attr_lpfc_topology,
725         &class_device_attr_lpfc_scan_down,
726         &class_device_attr_lpfc_link_speed,
727         &class_device_attr_lpfc_cr_delay,
728         &class_device_attr_lpfc_cr_count,
729         &class_device_attr_lpfc_fdmi_on,
730         &class_device_attr_lpfc_max_luns,
731         &class_device_attr_nport_evt_cnt,
732         &class_device_attr_management_version,
733         &class_device_attr_board_online,
734         &class_device_attr_board_mode,
735         &class_device_attr_lpfc_poll,
736         &class_device_attr_lpfc_poll_tmo,
737         NULL,
738 };
739
740 static ssize_t
741 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
742 {
743         size_t buf_off;
744         struct Scsi_Host *host = class_to_shost(container_of(kobj,
745                                              struct class_device, kobj));
746         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
747
748         if ((off + count) > FF_REG_AREA_SIZE)
749                 return -ERANGE;
750
751         if (count == 0) return 0;
752
753         if (off % 4 || count % 4 || (unsigned long)buf % 4)
754                 return -EINVAL;
755
756         spin_lock_irq(phba->host->host_lock);
757
758         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
759                 spin_unlock_irq(phba->host->host_lock);
760                 return -EPERM;
761         }
762
763         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
764                 writel(*((uint32_t *)(buf + buf_off)),
765                        phba->ctrl_regs_memmap_p + off + buf_off);
766
767         spin_unlock_irq(phba->host->host_lock);
768
769         return count;
770 }
771
772 static ssize_t
773 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
774 {
775         size_t buf_off;
776         uint32_t * tmp_ptr;
777         struct Scsi_Host *host = class_to_shost(container_of(kobj,
778                                              struct class_device, kobj));
779         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
780
781         if (off > FF_REG_AREA_SIZE)
782                 return -ERANGE;
783
784         if ((off + count) > FF_REG_AREA_SIZE)
785                 count = FF_REG_AREA_SIZE - off;
786
787         if (count == 0) return 0;
788
789         if (off % 4 || count % 4 || (unsigned long)buf % 4)
790                 return -EINVAL;
791
792         spin_lock_irq(phba->host->host_lock);
793
794         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
795                 tmp_ptr = (uint32_t *)(buf + buf_off);
796                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
797         }
798
799         spin_unlock_irq(phba->host->host_lock);
800
801         return count;
802 }
803
804 static struct bin_attribute sysfs_ctlreg_attr = {
805         .attr = {
806                 .name = "ctlreg",
807                 .mode = S_IRUSR | S_IWUSR,
808                 .owner = THIS_MODULE,
809         },
810         .size = 256,
811         .read = sysfs_ctlreg_read,
812         .write = sysfs_ctlreg_write,
813 };
814
815
816 static void
817 sysfs_mbox_idle (struct lpfc_hba * phba)
818 {
819         phba->sysfs_mbox.state = SMBOX_IDLE;
820         phba->sysfs_mbox.offset = 0;
821
822         if (phba->sysfs_mbox.mbox) {
823                 mempool_free(phba->sysfs_mbox.mbox,
824                              phba->mbox_mem_pool);
825                 phba->sysfs_mbox.mbox = NULL;
826         }
827 }
828
829 static ssize_t
830 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
831 {
832         struct Scsi_Host * host =
833                 class_to_shost(container_of(kobj, struct class_device, kobj));
834         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
835         struct lpfcMboxq * mbox = NULL;
836
837         if ((count + off) > MAILBOX_CMD_SIZE)
838                 return -ERANGE;
839
840         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
841                 return -EINVAL;
842
843         if (count == 0)
844                 return 0;
845
846         if (off == 0) {
847                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
848                 if (!mbox)
849                         return -ENOMEM;
850
851         }
852
853         spin_lock_irq(host->host_lock);
854
855         if (off == 0) {
856                 if (phba->sysfs_mbox.mbox)
857                         mempool_free(mbox, phba->mbox_mem_pool);
858                 else
859                         phba->sysfs_mbox.mbox = mbox;
860                 phba->sysfs_mbox.state = SMBOX_WRITING;
861         } else {
862                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
863                     phba->sysfs_mbox.offset != off           ||
864                     phba->sysfs_mbox.mbox   == NULL ) {
865                         sysfs_mbox_idle(phba);
866                         spin_unlock_irq(host->host_lock);
867                         return -EINVAL;
868                 }
869         }
870
871         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
872                buf, count);
873
874         phba->sysfs_mbox.offset = off + count;
875
876         spin_unlock_irq(host->host_lock);
877
878         return count;
879 }
880
881 static ssize_t
882 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
883 {
884         struct Scsi_Host *host =
885                 class_to_shost(container_of(kobj, struct class_device,
886                                             kobj));
887         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
888         int rc;
889
890         if (off > sizeof(MAILBOX_t))
891                 return -ERANGE;
892
893         if ((count + off) > sizeof(MAILBOX_t))
894                 count = sizeof(MAILBOX_t) - off;
895
896         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
897                 return -EINVAL;
898
899         if (off && count == 0)
900                 return 0;
901
902         spin_lock_irq(phba->host->host_lock);
903
904         if (off == 0 &&
905             phba->sysfs_mbox.state  == SMBOX_WRITING &&
906             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
907
908                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
909                         /* Offline only */
910                 case MBX_WRITE_NV:
911                 case MBX_INIT_LINK:
912                 case MBX_DOWN_LINK:
913                 case MBX_CONFIG_LINK:
914                 case MBX_CONFIG_RING:
915                 case MBX_RESET_RING:
916                 case MBX_UNREG_LOGIN:
917                 case MBX_CLEAR_LA:
918                 case MBX_DUMP_CONTEXT:
919                 case MBX_RUN_DIAGS:
920                 case MBX_RESTART:
921                 case MBX_FLASH_WR_ULA:
922                 case MBX_SET_MASK:
923                 case MBX_SET_SLIM:
924                 case MBX_SET_DEBUG:
925                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
926                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
927                                        "is illegal in on-line state\n",
928                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
929                                 sysfs_mbox_idle(phba);
930                                 spin_unlock_irq(phba->host->host_lock);
931                                 return -EPERM;
932                         }
933                 case MBX_LOAD_SM:
934                 case MBX_READ_NV:
935                 case MBX_READ_CONFIG:
936                 case MBX_READ_RCONFIG:
937                 case MBX_READ_STATUS:
938                 case MBX_READ_XRI:
939                 case MBX_READ_REV:
940                 case MBX_READ_LNK_STAT:
941                 case MBX_DUMP_MEMORY:
942                 case MBX_DOWN_LOAD:
943                 case MBX_UPDATE_CFG:
944                 case MBX_KILL_BOARD:
945                 case MBX_LOAD_AREA:
946                 case MBX_LOAD_EXP_ROM:
947                 case MBX_BEACON:
948                 case MBX_DEL_LD_ENTRY:
949                         break;
950                 case MBX_READ_SPARM64:
951                 case MBX_READ_LA:
952                 case MBX_READ_LA64:
953                 case MBX_REG_LOGIN:
954                 case MBX_REG_LOGIN64:
955                 case MBX_CONFIG_PORT:
956                 case MBX_RUN_BIU_DIAG:
957                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
958                                phba->sysfs_mbox.mbox->mb.mbxCommand);
959                         sysfs_mbox_idle(phba);
960                         spin_unlock_irq(phba->host->host_lock);
961                         return -EPERM;
962                 default:
963                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
964                                phba->sysfs_mbox.mbox->mb.mbxCommand);
965                         sysfs_mbox_idle(phba);
966                         spin_unlock_irq(phba->host->host_lock);
967                         return -EPERM;
968                 }
969
970                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
971                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
972
973                         spin_unlock_irq(phba->host->host_lock);
974                         rc = lpfc_sli_issue_mbox (phba,
975                                                   phba->sysfs_mbox.mbox,
976                                                   MBX_POLL);
977                         spin_lock_irq(phba->host->host_lock);
978
979                 } else {
980                         spin_unlock_irq(phba->host->host_lock);
981                         rc = lpfc_sli_issue_mbox_wait (phba,
982                                                        phba->sysfs_mbox.mbox,
983                                                        phba->fc_ratov * 2);
984                         spin_lock_irq(phba->host->host_lock);
985                 }
986
987                 if (rc != MBX_SUCCESS) {
988                         sysfs_mbox_idle(phba);
989                         spin_unlock_irq(host->host_lock);
990                         return -ENODEV;
991                 }
992                 phba->sysfs_mbox.state = SMBOX_READING;
993         }
994         else if (phba->sysfs_mbox.offset != off ||
995                  phba->sysfs_mbox.state  != SMBOX_READING) {
996                 printk(KERN_WARNING  "mbox_read: Bad State\n");
997                 sysfs_mbox_idle(phba);
998                 spin_unlock_irq(host->host_lock);
999                 return -EINVAL;
1000         }
1001
1002         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1003
1004         phba->sysfs_mbox.offset = off + count;
1005
1006         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1007                 sysfs_mbox_idle(phba);
1008
1009         spin_unlock_irq(phba->host->host_lock);
1010
1011         return count;
1012 }
1013
1014 static struct bin_attribute sysfs_mbox_attr = {
1015         .attr = {
1016                 .name = "mbox",
1017                 .mode = S_IRUSR | S_IWUSR,
1018                 .owner = THIS_MODULE,
1019         },
1020         .size = sizeof(MAILBOX_t),
1021         .read = sysfs_mbox_read,
1022         .write = sysfs_mbox_write,
1023 };
1024
1025 int
1026 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1027 {
1028         struct Scsi_Host *host = phba->host;
1029         int error;
1030
1031         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1032                                                         &sysfs_ctlreg_attr);
1033         if (error)
1034                 goto out;
1035
1036         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1037                                                         &sysfs_mbox_attr);
1038         if (error)
1039                 goto out_remove_ctlreg_attr;
1040
1041         return 0;
1042 out_remove_ctlreg_attr:
1043         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1044 out:
1045         return error;
1046 }
1047
1048 void
1049 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1050 {
1051         struct Scsi_Host *host = phba->host;
1052
1053         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1054         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1055 }
1056
1057
1058 /*
1059  * Dynamic FC Host Attributes Support
1060  */
1061
1062 static void
1063 lpfc_get_host_port_id(struct Scsi_Host *shost)
1064 {
1065         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1066         /* note: fc_myDID already in cpu endianness */
1067         fc_host_port_id(shost) = phba->fc_myDID;
1068 }
1069
1070 static void
1071 lpfc_get_host_port_type(struct Scsi_Host *shost)
1072 {
1073         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1074
1075         spin_lock_irq(shost->host_lock);
1076
1077         if (phba->hba_state == LPFC_HBA_READY) {
1078                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1079                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1080                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1081                         else
1082                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1083                 } else {
1084                         if (phba->fc_flag & FC_FABRIC)
1085                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1086                         else
1087                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1088                 }
1089         } else
1090                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1091
1092         spin_unlock_irq(shost->host_lock);
1093 }
1094
1095 static void
1096 lpfc_get_host_port_state(struct Scsi_Host *shost)
1097 {
1098         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1099
1100         spin_lock_irq(shost->host_lock);
1101
1102         if (phba->fc_flag & FC_OFFLINE_MODE)
1103                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1104         else {
1105                 switch (phba->hba_state) {
1106                 case LPFC_STATE_UNKNOWN:
1107                 case LPFC_WARM_START:
1108                 case LPFC_INIT_START:
1109                 case LPFC_INIT_MBX_CMDS:
1110                 case LPFC_LINK_DOWN:
1111                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1112                         break;
1113                 case LPFC_LINK_UP:
1114                 case LPFC_LOCAL_CFG_LINK:
1115                 case LPFC_FLOGI:
1116                 case LPFC_FABRIC_CFG_LINK:
1117                 case LPFC_NS_REG:
1118                 case LPFC_NS_QRY:
1119                 case LPFC_BUILD_DISC_LIST:
1120                 case LPFC_DISC_AUTH:
1121                 case LPFC_CLEAR_LA:
1122                 case LPFC_HBA_READY:
1123                         /* Links up, beyond this port_type reports state */
1124                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1125                         break;
1126                 case LPFC_HBA_ERROR:
1127                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1128                         break;
1129                 default:
1130                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1131                         break;
1132                 }
1133         }
1134
1135         spin_unlock_irq(shost->host_lock);
1136 }
1137
1138 static void
1139 lpfc_get_host_speed(struct Scsi_Host *shost)
1140 {
1141         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1142
1143         spin_lock_irq(shost->host_lock);
1144
1145         if (phba->hba_state == LPFC_HBA_READY) {
1146                 switch(phba->fc_linkspeed) {
1147                         case LA_1GHZ_LINK:
1148                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1149                         break;
1150                         case LA_2GHZ_LINK:
1151                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1152                         break;
1153                         case LA_4GHZ_LINK:
1154                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1155                         break;
1156                         default:
1157                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1158                         break;
1159                 }
1160         }
1161
1162         spin_unlock_irq(shost->host_lock);
1163 }
1164
1165 static void
1166 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1167 {
1168         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1169         u64 node_name;
1170
1171         spin_lock_irq(shost->host_lock);
1172
1173         if ((phba->fc_flag & FC_FABRIC) ||
1174             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1175              (phba->fc_flag & FC_PUBLIC_LOOP)))
1176                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1177         else
1178                 /* fabric is local port if there is no F/FL_Port */
1179                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1180
1181         spin_unlock_irq(shost->host_lock);
1182
1183         fc_host_fabric_name(shost) = node_name;
1184 }
1185
1186
1187 static struct fc_host_statistics *
1188 lpfc_get_stats(struct Scsi_Host *shost)
1189 {
1190         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1191         struct lpfc_sli *psli = &phba->sli;
1192         struct fc_host_statistics *hs = &phba->link_stats;
1193         LPFC_MBOXQ_t *pmboxq;
1194         MAILBOX_t *pmb;
1195         int rc = 0;
1196
1197         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1198         if (!pmboxq)
1199                 return NULL;
1200         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1201
1202         pmb = &pmboxq->mb;
1203         pmb->mbxCommand = MBX_READ_STATUS;
1204         pmb->mbxOwner = OWN_HOST;
1205         pmboxq->context1 = NULL;
1206
1207         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1208                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1209                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1210         else
1211                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1212
1213         if (rc != MBX_SUCCESS) {
1214                 if (rc == MBX_TIMEOUT)
1215                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1216                 else
1217                         mempool_free(pmboxq, phba->mbox_mem_pool);
1218                 return NULL;
1219         }
1220
1221         memset(hs, 0, sizeof (struct fc_host_statistics));
1222
1223         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1224         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1225         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1226         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1227
1228         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1229         pmb->mbxCommand = MBX_READ_LNK_STAT;
1230         pmb->mbxOwner = OWN_HOST;
1231         pmboxq->context1 = NULL;
1232
1233         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1234             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1235                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1236         else
1237                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1238
1239         if (rc != MBX_SUCCESS) {
1240                 if (rc == MBX_TIMEOUT)
1241                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1242                 else
1243                         mempool_free( pmboxq, phba->mbox_mem_pool);
1244                 return NULL;
1245         }
1246
1247         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1248         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1249         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1250         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1251         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1252         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1253         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1254
1255         if (phba->fc_topology == TOPOLOGY_LOOP) {
1256                 hs->lip_count = (phba->fc_eventTag >> 1);
1257                 hs->nos_count = -1;
1258         } else {
1259                 hs->lip_count = -1;
1260                 hs->nos_count = (phba->fc_eventTag >> 1);
1261         }
1262
1263         hs->dumped_frames = -1;
1264
1265 /* FIX ME */
1266         /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1267
1268         return hs;
1269 }
1270
1271
1272 /*
1273  * The LPFC driver treats linkdown handling as target loss events so there
1274  * are no sysfs handlers for link_down_tmo.
1275  */
1276 static void
1277 lpfc_get_starget_port_id(struct scsi_target *starget)
1278 {
1279         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1280         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1281         uint32_t did = -1;
1282         struct lpfc_nodelist *ndlp = NULL;
1283
1284         spin_lock_irq(shost->host_lock);
1285         /* Search the mapped list for this target ID */
1286         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1287                 if (starget->id == ndlp->nlp_sid) {
1288                         did = ndlp->nlp_DID;
1289                         break;
1290                 }
1291         }
1292         spin_unlock_irq(shost->host_lock);
1293
1294         fc_starget_port_id(starget) = did;
1295 }
1296
1297 static void
1298 lpfc_get_starget_node_name(struct scsi_target *starget)
1299 {
1300         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1301         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1302         u64 node_name = 0;
1303         struct lpfc_nodelist *ndlp = NULL;
1304
1305         spin_lock_irq(shost->host_lock);
1306         /* Search the mapped list for this target ID */
1307         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1308                 if (starget->id == ndlp->nlp_sid) {
1309                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1310                         break;
1311                 }
1312         }
1313         spin_unlock_irq(shost->host_lock);
1314
1315         fc_starget_node_name(starget) = node_name;
1316 }
1317
1318 static void
1319 lpfc_get_starget_port_name(struct scsi_target *starget)
1320 {
1321         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1322         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1323         u64 port_name = 0;
1324         struct lpfc_nodelist *ndlp = NULL;
1325
1326         spin_lock_irq(shost->host_lock);
1327         /* Search the mapped list for this target ID */
1328         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1329                 if (starget->id == ndlp->nlp_sid) {
1330                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1331                         break;
1332                 }
1333         }
1334         spin_unlock_irq(shost->host_lock);
1335
1336         fc_starget_port_name(starget) = port_name;
1337 }
1338
1339 static void
1340 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1341 {
1342         /*
1343          * Return the driver's global value for device loss timeout plus
1344          * five seconds to allow the driver's nodev timer to run.
1345          */
1346         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1347 }
1348
1349 static void
1350 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1351 {
1352         /*
1353          * The driver doesn't have a per-target timeout setting.  Set
1354          * this value globally. lpfc_nodev_tmo should be greater then 0.
1355          */
1356         if (timeout)
1357                 lpfc_nodev_tmo = timeout;
1358         else
1359                 lpfc_nodev_tmo = 1;
1360         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1361 }
1362
1363
1364 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1365 static ssize_t                                                          \
1366 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1367 {                                                                       \
1368         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1369         struct lpfc_rport_data *rdata = rport->hostdata;                \
1370         return snprintf(buf, sz, format_string,                         \
1371                 (rdata->target) ? cast rdata->target->field : 0);       \
1372 }
1373
1374 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1375         lpfc_rport_show_function(field, format_string, sz, )            \
1376 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1377
1378
1379 struct fc_function_template lpfc_transport_functions = {
1380         /* fixed attributes the driver supports */
1381         .show_host_node_name = 1,
1382         .show_host_port_name = 1,
1383         .show_host_supported_classes = 1,
1384         .show_host_supported_fc4s = 1,
1385         .show_host_symbolic_name = 1,
1386         .show_host_supported_speeds = 1,
1387         .show_host_maxframe_size = 1,
1388
1389         /* dynamic attributes the driver supports */
1390         .get_host_port_id = lpfc_get_host_port_id,
1391         .show_host_port_id = 1,
1392
1393         .get_host_port_type = lpfc_get_host_port_type,
1394         .show_host_port_type = 1,
1395
1396         .get_host_port_state = lpfc_get_host_port_state,
1397         .show_host_port_state = 1,
1398
1399         /* active_fc4s is shown but doesn't change (thus no get function) */
1400         .show_host_active_fc4s = 1,
1401
1402         .get_host_speed = lpfc_get_host_speed,
1403         .show_host_speed = 1,
1404
1405         .get_host_fabric_name = lpfc_get_host_fabric_name,
1406         .show_host_fabric_name = 1,
1407
1408         /*
1409          * The LPFC driver treats linkdown handling as target loss events
1410          * so there are no sysfs handlers for link_down_tmo.
1411          */
1412
1413         .get_fc_host_stats = lpfc_get_stats,
1414
1415         /* the LPFC driver doesn't support resetting stats yet */
1416
1417         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1418         .show_rport_maxframe_size = 1,
1419         .show_rport_supported_classes = 1,
1420
1421         .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1422         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1423         .show_rport_dev_loss_tmo = 1,
1424
1425         .get_starget_port_id  = lpfc_get_starget_port_id,
1426         .show_starget_port_id = 1,
1427
1428         .get_starget_node_name = lpfc_get_starget_node_name,
1429         .show_starget_node_name = 1,
1430
1431         .get_starget_port_name = lpfc_get_starget_port_name,
1432         .show_starget_port_name = 1,
1433
1434         .issue_fc_host_lip = lpfc_issue_lip,
1435 };
1436
1437 void
1438 lpfc_get_cfgparam(struct lpfc_hba *phba)
1439 {
1440         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1441         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1442         lpfc_cr_count_init(phba, lpfc_cr_count);
1443         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1444         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1445         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1446         lpfc_ack0_init(phba, lpfc_ack0);
1447         lpfc_topology_init(phba, lpfc_topology);
1448         lpfc_scan_down_init(phba, lpfc_scan_down);
1449         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1450         lpfc_link_speed_init(phba, lpfc_link_speed);
1451         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1452         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1453         lpfc_max_luns_init(phba, lpfc_max_luns);
1454         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1455
1456         phba->cfg_poll = lpfc_poll;
1457
1458         /*
1459          * The total number of segments is the configuration value plus 2
1460          * since the IOCB need a command and response bde.
1461          */
1462         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1463
1464         /*
1465          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1466          * used to create the sg_dma_buf_pool must be dynamically calculated
1467          */
1468         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1469                         sizeof(struct fcp_rsp) +
1470                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1471
1472         switch (phba->pcidev->device) {
1473         case PCI_DEVICE_ID_LP101:
1474         case PCI_DEVICE_ID_BSMB:
1475         case PCI_DEVICE_ID_ZSMB:
1476                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1477                 break;
1478         case PCI_DEVICE_ID_RFLY:
1479         case PCI_DEVICE_ID_PFLY:
1480         case PCI_DEVICE_ID_BMID:
1481         case PCI_DEVICE_ID_ZMID:
1482         case PCI_DEVICE_ID_TFLY:
1483                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1484                 break;
1485         default:
1486                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1487         }
1488
1489         if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1490                 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1491
1492         return;
1493 }