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Pull bugfix into test branch
[GitHub/mt8127/android_kernel_alcatel_ttab.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 #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 }
kernel source for telekom puls (alcatel/mediatek)