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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
[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) 2004-2007 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_tcq.h>
31 #include <scsi/scsi_transport_fc.h>
32
33 #include "lpfc_hw.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_disc.h"
36 #include "lpfc_scsi.h"
37 #include "lpfc.h"
38 #include "lpfc_logmsg.h"
39 #include "lpfc_version.h"
40 #include "lpfc_compat.h"
41 #include "lpfc_crtn.h"
42
43 #define LPFC_DEF_DEVLOSS_TMO 30
44 #define LPFC_MIN_DEVLOSS_TMO 1
45 #define LPFC_MAX_DEVLOSS_TMO 255
46
47 static void
48 lpfc_jedec_to_ascii(int incr, char hdw[])
49 {
50 int i, j;
51 for (i = 0; i < 8; i++) {
52 j = (incr & 0xf);
53 if (j <= 9)
54 hdw[7 - i] = 0x30 + j;
55 else
56 hdw[7 - i] = 0x61 + j - 10;
57 incr = (incr >> 4);
58 }
59 hdw[8] = 0;
60 return;
61 }
62
63 static ssize_t
64 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
65 {
66 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
67 }
68
69 static ssize_t
70 management_version_show(struct class_device *cdev, char *buf)
71 {
72 return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
73 }
74
75 static ssize_t
76 lpfc_info_show(struct class_device *cdev, char *buf)
77 {
78 struct Scsi_Host *host = class_to_shost(cdev);
79 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
80 }
81
82 static ssize_t
83 lpfc_serialnum_show(struct class_device *cdev, char *buf)
84 {
85 struct Scsi_Host *host = class_to_shost(cdev);
86 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
87 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
88 }
89
90 static ssize_t
91 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
92 {
93 struct Scsi_Host *host = class_to_shost(cdev);
94 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
95 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
96 }
97
98 static ssize_t
99 lpfc_modelname_show(struct class_device *cdev, char *buf)
100 {
101 struct Scsi_Host *host = class_to_shost(cdev);
102 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
103 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
104 }
105
106 static ssize_t
107 lpfc_programtype_show(struct class_device *cdev, char *buf)
108 {
109 struct Scsi_Host *host = class_to_shost(cdev);
110 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
111 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
112 }
113
114 static ssize_t
115 lpfc_portnum_show(struct class_device *cdev, char *buf)
116 {
117 struct Scsi_Host *host = class_to_shost(cdev);
118 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
119 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
120 }
121
122 static ssize_t
123 lpfc_fwrev_show(struct class_device *cdev, char *buf)
124 {
125 struct Scsi_Host *host = class_to_shost(cdev);
126 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
127 char fwrev[32];
128 lpfc_decode_firmware_rev(phba, fwrev, 1);
129 return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
130 }
131
132 static ssize_t
133 lpfc_hdw_show(struct class_device *cdev, char *buf)
134 {
135 char hdw[9];
136 struct Scsi_Host *host = class_to_shost(cdev);
137 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
138 lpfc_vpd_t *vp = &phba->vpd;
139 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
140 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
141 }
142 static ssize_t
143 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
144 {
145 struct Scsi_Host *host = class_to_shost(cdev);
146 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
147 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
148 }
149 static ssize_t
150 lpfc_state_show(struct class_device *cdev, char *buf)
151 {
152 struct Scsi_Host *host = class_to_shost(cdev);
153 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
154 int len = 0;
155 switch (phba->hba_state) {
156 case LPFC_STATE_UNKNOWN:
157 case LPFC_WARM_START:
158 case LPFC_INIT_START:
159 case LPFC_INIT_MBX_CMDS:
160 case LPFC_LINK_DOWN:
161 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
162 break;
163 case LPFC_LINK_UP:
164 case LPFC_LOCAL_CFG_LINK:
165 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
166 break;
167 case LPFC_FLOGI:
168 case LPFC_FABRIC_CFG_LINK:
169 case LPFC_NS_REG:
170 case LPFC_NS_QRY:
171 case LPFC_BUILD_DISC_LIST:
172 case LPFC_DISC_AUTH:
173 case LPFC_CLEAR_LA:
174 len += snprintf(buf + len, PAGE_SIZE-len,
175 "Link Up - Discovery\n");
176 break;
177 case LPFC_HBA_READY:
178 len += snprintf(buf + len, PAGE_SIZE-len,
179 "Link Up - Ready:\n");
180 if (phba->fc_topology == TOPOLOGY_LOOP) {
181 if (phba->fc_flag & FC_PUBLIC_LOOP)
182 len += snprintf(buf + len, PAGE_SIZE-len,
183 " Public Loop\n");
184 else
185 len += snprintf(buf + len, PAGE_SIZE-len,
186 " Private Loop\n");
187 } else {
188 if (phba->fc_flag & FC_FABRIC)
189 len += snprintf(buf + len, PAGE_SIZE-len,
190 " Fabric\n");
191 else
192 len += snprintf(buf + len, PAGE_SIZE-len,
193 " Point-2-Point\n");
194 }
195 }
196 return len;
197 }
198
199 static ssize_t
200 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
201 {
202 struct Scsi_Host *host = class_to_shost(cdev);
203 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
204 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
205 phba->fc_unmap_cnt);
206 }
207
208
209 static int
210 lpfc_issue_lip(struct Scsi_Host *host)
211 {
212 struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
213 LPFC_MBOXQ_t *pmboxq;
214 int mbxstatus = MBXERR_ERROR;
215
216 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
217 (phba->fc_flag & FC_BLOCK_MGMT_IO) ||
218 (phba->hba_state != LPFC_HBA_READY))
219 return -EPERM;
220
221 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
222
223 if (!pmboxq)
224 return -ENOMEM;
225
226 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
227 pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
228 pmboxq->mb.mbxOwner = OWN_HOST;
229
230 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
231
232 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
233 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
234 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
235 phba->cfg_link_speed);
236 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
237 phba->fc_ratov * 2);
238 }
239
240 lpfc_set_loopback_flag(phba);
241 if (mbxstatus == MBX_TIMEOUT)
242 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
243 else
244 mempool_free(pmboxq, phba->mbox_mem_pool);
245
246 if (mbxstatus == MBXERR_ERROR)
247 return -EIO;
248
249 return 0;
250 }
251
252 static int
253 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
254 {
255 struct completion online_compl;
256 struct lpfc_sli_ring *pring;
257 struct lpfc_sli *psli;
258 int status = 0;
259 int cnt = 0;
260 int i;
261
262 init_completion(&online_compl);
263 lpfc_workq_post_event(phba, &status, &online_compl,
264 LPFC_EVT_OFFLINE_PREP);
265 wait_for_completion(&online_compl);
266
267 if (status != 0)
268 return -EIO;
269
270 psli = &phba->sli;
271
272 for (i = 0; i < psli->num_rings; i++) {
273 pring = &psli->ring[i];
274 /* The linkdown event takes 30 seconds to timeout. */
275 while (pring->txcmplq_cnt) {
276 msleep(10);
277 if (cnt++ > 3000) {
278 lpfc_printf_log(phba,
279 KERN_WARNING, LOG_INIT,
280 "%d:0466 Outstanding IO when "
281 "bringing Adapter offline\n",
282 phba->brd_no);
283 break;
284 }
285 }
286 }
287
288 init_completion(&online_compl);
289 lpfc_workq_post_event(phba, &status, &online_compl, type);
290 wait_for_completion(&online_compl);
291
292 if (status != 0)
293 return -EIO;
294
295 return 0;
296 }
297
298 static int
299 lpfc_selective_reset(struct lpfc_hba *phba)
300 {
301 struct completion online_compl;
302 int status = 0;
303
304 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
305
306 if (status != 0)
307 return status;
308
309 init_completion(&online_compl);
310 lpfc_workq_post_event(phba, &status, &online_compl,
311 LPFC_EVT_ONLINE);
312 wait_for_completion(&online_compl);
313
314 if (status != 0)
315 return -EIO;
316
317 return 0;
318 }
319
320 static ssize_t
321 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
322 {
323 struct Scsi_Host *host = class_to_shost(cdev);
324 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
325 int status = -EINVAL;
326
327 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
328 status = lpfc_selective_reset(phba);
329
330 if (status == 0)
331 return strlen(buf);
332 else
333 return status;
334 }
335
336 static ssize_t
337 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
338 {
339 struct Scsi_Host *host = class_to_shost(cdev);
340 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
341 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
342 }
343
344 static ssize_t
345 lpfc_board_mode_show(struct class_device *cdev, char *buf)
346 {
347 struct Scsi_Host *host = class_to_shost(cdev);
348 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
349 char * state;
350
351 if (phba->hba_state == LPFC_HBA_ERROR)
352 state = "error";
353 else if (phba->hba_state == LPFC_WARM_START)
354 state = "warm start";
355 else if (phba->hba_state == LPFC_INIT_START)
356 state = "offline";
357 else
358 state = "online";
359
360 return snprintf(buf, PAGE_SIZE, "%s\n", state);
361 }
362
363 static ssize_t
364 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
365 {
366 struct Scsi_Host *host = class_to_shost(cdev);
367 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
368 struct completion online_compl;
369 int status=0;
370
371 init_completion(&online_compl);
372
373 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
374 lpfc_workq_post_event(phba, &status, &online_compl,
375 LPFC_EVT_ONLINE);
376 wait_for_completion(&online_compl);
377 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
378 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
379 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
380 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
381 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
382 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
383 else
384 return -EINVAL;
385
386 if (!status)
387 return strlen(buf);
388 else
389 return -EIO;
390 }
391
392 static ssize_t
393 lpfc_poll_show(struct class_device *cdev, char *buf)
394 {
395 struct Scsi_Host *host = class_to_shost(cdev);
396 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
397
398 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
399 }
400
401 static ssize_t
402 lpfc_poll_store(struct class_device *cdev, const char *buf,
403 size_t count)
404 {
405 struct Scsi_Host *host = class_to_shost(cdev);
406 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
407 uint32_t creg_val;
408 uint32_t old_val;
409 int val=0;
410
411 if (!isdigit(buf[0]))
412 return -EINVAL;
413
414 if (sscanf(buf, "%i", &val) != 1)
415 return -EINVAL;
416
417 if ((val & 0x3) != val)
418 return -EINVAL;
419
420 spin_lock_irq(phba->host->host_lock);
421
422 old_val = phba->cfg_poll;
423
424 if (val & ENABLE_FCP_RING_POLLING) {
425 if ((val & DISABLE_FCP_RING_INT) &&
426 !(old_val & DISABLE_FCP_RING_INT)) {
427 creg_val = readl(phba->HCregaddr);
428 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
429 writel(creg_val, phba->HCregaddr);
430 readl(phba->HCregaddr); /* flush */
431
432 lpfc_poll_start_timer(phba);
433 }
434 } else if (val != 0x0) {
435 spin_unlock_irq(phba->host->host_lock);
436 return -EINVAL;
437 }
438
439 if (!(val & DISABLE_FCP_RING_INT) &&
440 (old_val & DISABLE_FCP_RING_INT))
441 {
442 spin_unlock_irq(phba->host->host_lock);
443 del_timer(&phba->fcp_poll_timer);
444 spin_lock_irq(phba->host->host_lock);
445 creg_val = readl(phba->HCregaddr);
446 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
447 writel(creg_val, phba->HCregaddr);
448 readl(phba->HCregaddr); /* flush */
449 }
450
451 phba->cfg_poll = val;
452
453 spin_unlock_irq(phba->host->host_lock);
454
455 return strlen(buf);
456 }
457
458 #define lpfc_param_show(attr) \
459 static ssize_t \
460 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
461 { \
462 struct Scsi_Host *host = class_to_shost(cdev);\
463 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
464 int val = 0;\
465 val = phba->cfg_##attr;\
466 return snprintf(buf, PAGE_SIZE, "%d\n",\
467 phba->cfg_##attr);\
468 }
469
470 #define lpfc_param_hex_show(attr) \
471 static ssize_t \
472 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
473 { \
474 struct Scsi_Host *host = class_to_shost(cdev);\
475 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
476 int val = 0;\
477 val = phba->cfg_##attr;\
478 return snprintf(buf, PAGE_SIZE, "%#x\n",\
479 phba->cfg_##attr);\
480 }
481
482 #define lpfc_param_init(attr, default, minval, maxval) \
483 static int \
484 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
485 { \
486 if (val >= minval && val <= maxval) {\
487 phba->cfg_##attr = val;\
488 return 0;\
489 }\
490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
491 "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
492 "allowed range is ["#minval", "#maxval"]\n", \
493 phba->brd_no, val); \
494 phba->cfg_##attr = default;\
495 return -EINVAL;\
496 }
497
498 #define lpfc_param_set(attr, default, minval, maxval) \
499 static int \
500 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
501 { \
502 if (val >= minval && val <= maxval) {\
503 phba->cfg_##attr = val;\
504 return 0;\
505 }\
506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
507 "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
508 "allowed range is ["#minval", "#maxval"]\n", \
509 phba->brd_no, val); \
510 return -EINVAL;\
511 }
512
513 #define lpfc_param_store(attr) \
514 static ssize_t \
515 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
516 { \
517 struct Scsi_Host *host = class_to_shost(cdev);\
518 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
519 int val=0;\
520 if (!isdigit(buf[0]))\
521 return -EINVAL;\
522 if (sscanf(buf, "%i", &val) != 1)\
523 return -EINVAL;\
524 if (lpfc_##attr##_set(phba, val) == 0) \
525 return strlen(buf);\
526 else \
527 return -EINVAL;\
528 }
529
530 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
531 static int lpfc_##name = defval;\
532 module_param(lpfc_##name, int, 0);\
533 MODULE_PARM_DESC(lpfc_##name, desc);\
534 lpfc_param_init(name, defval, minval, maxval)
535
536 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
537 static int lpfc_##name = defval;\
538 module_param(lpfc_##name, int, 0);\
539 MODULE_PARM_DESC(lpfc_##name, desc);\
540 lpfc_param_show(name)\
541 lpfc_param_init(name, defval, minval, maxval)\
542 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
543
544 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
545 static int lpfc_##name = defval;\
546 module_param(lpfc_##name, int, 0);\
547 MODULE_PARM_DESC(lpfc_##name, desc);\
548 lpfc_param_show(name)\
549 lpfc_param_init(name, defval, minval, maxval)\
550 lpfc_param_set(name, defval, minval, maxval)\
551 lpfc_param_store(name)\
552 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
553 lpfc_##name##_show, lpfc_##name##_store)
554
555 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
556 static int lpfc_##name = defval;\
557 module_param(lpfc_##name, int, 0);\
558 MODULE_PARM_DESC(lpfc_##name, desc);\
559 lpfc_param_hex_show(name)\
560 lpfc_param_init(name, defval, minval, maxval)\
561 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
562
563 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
564 static int lpfc_##name = defval;\
565 module_param(lpfc_##name, int, 0);\
566 MODULE_PARM_DESC(lpfc_##name, desc);\
567 lpfc_param_hex_show(name)\
568 lpfc_param_init(name, defval, minval, maxval)\
569 lpfc_param_set(name, defval, minval, maxval)\
570 lpfc_param_store(name)\
571 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
572 lpfc_##name##_show, lpfc_##name##_store)
573
574 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
575 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
576 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
577 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
578 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
579 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
580 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
581 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
582 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
583 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
584 lpfc_option_rom_version_show, NULL);
585 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
586 lpfc_num_discovered_ports_show, NULL);
587 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
588 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
589 NULL);
590 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
591 NULL);
592 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
593 lpfc_board_mode_show, lpfc_board_mode_store);
594 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
595
596
597 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
598
599 static ssize_t
600 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
601 size_t count)
602 {
603 struct Scsi_Host *host = class_to_shost(cdev);
604 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
605 unsigned int cnt = count;
606
607 /*
608 * We're doing a simple sanity check for soft_wwpn setting.
609 * We require that the user write a specific key to enable
610 * the soft_wwpn attribute to be settable. Once the attribute
611 * is written, the enable key resets. If further updates are
612 * desired, the key must be written again to re-enable the
613 * attribute.
614 *
615 * The "key" is not secret - it is a hardcoded string shown
616 * here. The intent is to protect against the random user or
617 * application that is just writing attributes.
618 */
619
620 /* count may include a LF at end of string */
621 if (buf[cnt-1] == '\n')
622 cnt--;
623
624 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
625 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
626 return -EINVAL;
627
628 phba->soft_wwn_enable = 1;
629 return count;
630 }
631 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
632 lpfc_soft_wwn_enable_store);
633
634 static ssize_t
635 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
636 {
637 struct Scsi_Host *host = class_to_shost(cdev);
638 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
639 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
640 (unsigned long long)phba->cfg_soft_wwpn);
641 }
642
643
644 static ssize_t
645 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
646 {
647 struct Scsi_Host *host = class_to_shost(cdev);
648 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
649 struct completion online_compl;
650 int stat1=0, stat2=0;
651 unsigned int i, j, cnt=count;
652 u8 wwpn[8];
653
654 /* count may include a LF at end of string */
655 if (buf[cnt-1] == '\n')
656 cnt--;
657
658 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
659 ((cnt == 17) && (*buf++ != 'x')) ||
660 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
661 return -EINVAL;
662
663 phba->soft_wwn_enable = 0;
664
665 memset(wwpn, 0, sizeof(wwpn));
666
667 /* Validate and store the new name */
668 for (i=0, j=0; i < 16; i++) {
669 if ((*buf >= 'a') && (*buf <= 'f'))
670 j = ((j << 4) | ((*buf++ -'a') + 10));
671 else if ((*buf >= 'A') && (*buf <= 'F'))
672 j = ((j << 4) | ((*buf++ -'A') + 10));
673 else if ((*buf >= '0') && (*buf <= '9'))
674 j = ((j << 4) | (*buf++ -'0'));
675 else
676 return -EINVAL;
677 if (i % 2) {
678 wwpn[i/2] = j & 0xff;
679 j = 0;
680 }
681 }
682 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
683 fc_host_port_name(host) = phba->cfg_soft_wwpn;
684 if (phba->cfg_soft_wwnn)
685 fc_host_node_name(host) = phba->cfg_soft_wwnn;
686
687 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
688 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
689
690 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
691 if (stat1)
692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
693 "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
694 "adapter - %d\n", phba->brd_no, stat1);
695
696 init_completion(&online_compl);
697 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
698 wait_for_completion(&online_compl);
699 if (stat2)
700 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
701 "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
702 "adapter - %d\n", phba->brd_no, stat2);
703
704 return (stat1 || stat2) ? -EIO : count;
705 }
706 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
707 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
708
709 static ssize_t
710 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
711 {
712 struct Scsi_Host *host = class_to_shost(cdev);
713 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
714 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
715 (unsigned long long)phba->cfg_soft_wwnn);
716 }
717
718
719 static ssize_t
720 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
721 {
722 struct Scsi_Host *host = class_to_shost(cdev);
723 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
724 unsigned int i, j, cnt=count;
725 u8 wwnn[8];
726
727 /* count may include a LF at end of string */
728 if (buf[cnt-1] == '\n')
729 cnt--;
730
731 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
732 ((cnt == 17) && (*buf++ != 'x')) ||
733 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
734 return -EINVAL;
735
736 /*
737 * Allow wwnn to be set many times, as long as the enable is set.
738 * However, once the wwpn is set, everything locks.
739 */
740
741 memset(wwnn, 0, sizeof(wwnn));
742
743 /* Validate and store the new name */
744 for (i=0, j=0; i < 16; i++) {
745 if ((*buf >= 'a') && (*buf <= 'f'))
746 j = ((j << 4) | ((*buf++ -'a') + 10));
747 else if ((*buf >= 'A') && (*buf <= 'F'))
748 j = ((j << 4) | ((*buf++ -'A') + 10));
749 else if ((*buf >= '0') && (*buf <= '9'))
750 j = ((j << 4) | (*buf++ -'0'));
751 else
752 return -EINVAL;
753 if (i % 2) {
754 wwnn[i/2] = j & 0xff;
755 j = 0;
756 }
757 }
758 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
759
760 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
761 "lpfc%d: soft_wwnn set. Value will take effect upon "
762 "setting of the soft_wwpn\n", phba->brd_no);
763
764 return count;
765 }
766 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
767 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
768
769
770 static int lpfc_poll = 0;
771 module_param(lpfc_poll, int, 0);
772 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
773 " 0 - none,"
774 " 1 - poll with interrupts enabled"
775 " 3 - poll and disable FCP ring interrupts");
776
777 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
778 lpfc_poll_show, lpfc_poll_store);
779
780 /*
781 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
782 # until the timer expires. Value range is [0,255]. Default value is 30.
783 */
784 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
785 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
786 module_param(lpfc_nodev_tmo, int, 0);
787 MODULE_PARM_DESC(lpfc_nodev_tmo,
788 "Seconds driver will hold I/O waiting "
789 "for a device to come back");
790 static ssize_t
791 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
792 {
793 struct Scsi_Host *host = class_to_shost(cdev);
794 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
795 int val = 0;
796 val = phba->cfg_devloss_tmo;
797 return snprintf(buf, PAGE_SIZE, "%d\n",
798 phba->cfg_devloss_tmo);
799 }
800
801 static int
802 lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
803 {
804 static int warned;
805 if (phba->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
806 phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
807 if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
808 warned = 1;
809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
810 "%d:0402 Ignoring nodev_tmo module "
811 "parameter because devloss_tmo is"
812 " set.\n",
813 phba->brd_no);
814 }
815 return 0;
816 }
817
818 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
819 phba->cfg_nodev_tmo = val;
820 phba->cfg_devloss_tmo = val;
821 return 0;
822 }
823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
824 "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
825 "allowed range is [%d, %d]\n",
826 phba->brd_no, val,
827 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
828 phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
829 return -EINVAL;
830 }
831
832 static void
833 lpfc_update_rport_devloss_tmo(struct lpfc_hba *phba)
834 {
835 struct lpfc_nodelist *ndlp;
836
837 spin_lock_irq(phba->host->host_lock);
838 list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp)
839 if (ndlp->rport)
840 ndlp->rport->dev_loss_tmo = phba->cfg_devloss_tmo;
841 spin_unlock_irq(phba->host->host_lock);
842 }
843
844 static int
845 lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
846 {
847 if (phba->dev_loss_tmo_changed ||
848 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
850 "%d:0401 Ignoring change to nodev_tmo "
851 "because devloss_tmo is set.\n",
852 phba->brd_no);
853 return 0;
854 }
855
856 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
857 phba->cfg_nodev_tmo = val;
858 phba->cfg_devloss_tmo = val;
859 lpfc_update_rport_devloss_tmo(phba);
860 return 0;
861 }
862
863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
864 "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
865 "allowed range is [%d, %d]\n",
866 phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
867 LPFC_MAX_DEVLOSS_TMO);
868 return -EINVAL;
869 }
870
871 lpfc_param_store(nodev_tmo)
872
873 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
874 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
875
876 /*
877 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
878 # disappear until the timer expires. Value range is [0,255]. Default
879 # value is 30.
880 */
881 module_param(lpfc_devloss_tmo, int, 0);
882 MODULE_PARM_DESC(lpfc_devloss_tmo,
883 "Seconds driver will hold I/O waiting "
884 "for a device to come back");
885 lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
886 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
887 lpfc_param_show(devloss_tmo)
888 static int
889 lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
890 {
891 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
892 phba->cfg_nodev_tmo = val;
893 phba->cfg_devloss_tmo = val;
894 phba->dev_loss_tmo_changed = 1;
895 lpfc_update_rport_devloss_tmo(phba);
896 return 0;
897 }
898
899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
900 "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
901 " %d, allowed range is [%d, %d]\n",
902 phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
903 LPFC_MAX_DEVLOSS_TMO);
904 return -EINVAL;
905 }
906
907 lpfc_param_store(devloss_tmo)
908 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
909 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
910
911 /*
912 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
913 # deluged with LOTS of information.
914 # You can set a bit mask to record specific types of verbose messages:
915 #
916 # LOG_ELS 0x1 ELS events
917 # LOG_DISCOVERY 0x2 Link discovery events
918 # LOG_MBOX 0x4 Mailbox events
919 # LOG_INIT 0x8 Initialization events
920 # LOG_LINK_EVENT 0x10 Link events
921 # LOG_FCP 0x40 FCP traffic history
922 # LOG_NODE 0x80 Node table events
923 # LOG_MISC 0x400 Miscellaneous events
924 # LOG_SLI 0x800 SLI events
925 # LOG_FCP_ERROR 0x1000 Only log FCP errors
926 # LOG_LIBDFC 0x2000 LIBDFC events
927 # LOG_ALL_MSG 0xffff LOG all messages
928 */
929 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
930
931 /*
932 # lun_queue_depth: This parameter is used to limit the number of outstanding
933 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
934 */
935 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
936 "Max number of FCP commands we can queue to a specific LUN");
937
938 /*
939 # hba_queue_depth: This parameter is used to limit the number of outstanding
940 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
941 # value is greater than the maximum number of exchanges supported by the HBA,
942 # then maximum number of exchanges supported by the HBA is used to determine
943 # the hba_queue_depth.
944 */
945 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
946 "Max number of FCP commands we can queue to a lpfc HBA");
947
948 /*
949 # Some disk devices have a "select ID" or "select Target" capability.
950 # From a protocol standpoint "select ID" usually means select the
951 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
952 # annex" which contains a table that maps a "select ID" (a number
953 # between 0 and 7F) to an ALPA. By default, for compatibility with
954 # older drivers, the lpfc driver scans this table from low ALPA to high
955 # ALPA.
956 #
957 # Turning on the scan-down variable (on = 1, off = 0) will
958 # cause the lpfc driver to use an inverted table, effectively
959 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
960 #
961 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
962 # and will not work across a fabric. Also this parameter will take
963 # effect only in the case when ALPA map is not available.)
964 */
965 LPFC_ATTR_R(scan_down, 1, 0, 1,
966 "Start scanning for devices from highest ALPA to lowest");
967
968 /*
969 # lpfc_topology: link topology for init link
970 # 0x0 = attempt loop mode then point-to-point
971 # 0x01 = internal loopback mode
972 # 0x02 = attempt point-to-point mode only
973 # 0x04 = attempt loop mode only
974 # 0x06 = attempt point-to-point mode then loop
975 # Set point-to-point mode if you want to run as an N_Port.
976 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
977 # Default value is 0.
978 */
979 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
980
981 /*
982 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
983 # connection.
984 # 0 = auto select (default)
985 # 1 = 1 Gigabaud
986 # 2 = 2 Gigabaud
987 # 4 = 4 Gigabaud
988 # 8 = 8 Gigabaud
989 # Value range is [0,8]. Default value is 0.
990 */
991 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
992
993 /*
994 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
995 # Value range is [2,3]. Default value is 3.
996 */
997 LPFC_ATTR_R(fcp_class, 3, 2, 3,
998 "Select Fibre Channel class of service for FCP sequences");
999
1000 /*
1001 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1002 # is [0,1]. Default value is 0.
1003 */
1004 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
1005 "Use ADISC on rediscovery to authenticate FCP devices");
1006
1007 /*
1008 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1009 # range is [0,1]. Default value is 0.
1010 */
1011 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1012
1013 /*
1014 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1015 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1016 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1017 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1018 # cr_delay is set to 0.
1019 */
1020 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1021 "interrupt response is generated");
1022
1023 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1024 "interrupt response is generated");
1025
1026 /*
1027 # lpfc_multi_ring_support: Determines how many rings to spread available
1028 # cmd/rsp IOCB entries across.
1029 # Value range is [1,2]. Default value is 1.
1030 */
1031 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1032 "SLI rings to spread IOCB entries across");
1033
1034 /*
1035 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
1036 # identifies what rctl value to configure the additional ring for.
1037 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1038 */
1039 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1040 255, "Identifies RCTL for additional ring configuration");
1041
1042 /*
1043 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
1044 # identifies what type value to configure the additional ring for.
1045 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1046 */
1047 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1048 255, "Identifies TYPE for additional ring configuration");
1049
1050 /*
1051 # lpfc_fdmi_on: controls FDMI support.
1052 # 0 = no FDMI support
1053 # 1 = support FDMI without attribute of hostname
1054 # 2 = support FDMI with attribute of hostname
1055 # Value range [0,2]. Default value is 0.
1056 */
1057 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1058
1059 /*
1060 # Specifies the maximum number of ELS cmds we can have outstanding (for
1061 # discovery). Value range is [1,64]. Default value = 32.
1062 */
1063 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1064 "during discovery");
1065
1066 /*
1067 # lpfc_max_luns: maximum allowed LUN.
1068 # Value range is [0,65535]. Default value is 255.
1069 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1070 */
1071 LPFC_ATTR_R(max_luns, 255, 0, 65535,
1072 "Maximum allowed LUN");
1073
1074 /*
1075 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1076 # Value range is [1,255], default value is 10.
1077 */
1078 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1079 "Milliseconds driver will wait between polling FCP ring");
1080
1081 /*
1082 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1083 # support this feature
1084 # 0 = MSI disabled (default)
1085 # 1 = MSI enabled
1086 # Value range is [0,1]. Default value is 0.
1087 */
1088 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1089
1090
1091 struct class_device_attribute *lpfc_host_attrs[] = {
1092 &class_device_attr_info,
1093 &class_device_attr_serialnum,
1094 &class_device_attr_modeldesc,
1095 &class_device_attr_modelname,
1096 &class_device_attr_programtype,
1097 &class_device_attr_portnum,
1098 &class_device_attr_fwrev,
1099 &class_device_attr_hdw,
1100 &class_device_attr_option_rom_version,
1101 &class_device_attr_state,
1102 &class_device_attr_num_discovered_ports,
1103 &class_device_attr_lpfc_drvr_version,
1104 &class_device_attr_lpfc_log_verbose,
1105 &class_device_attr_lpfc_lun_queue_depth,
1106 &class_device_attr_lpfc_hba_queue_depth,
1107 &class_device_attr_lpfc_nodev_tmo,
1108 &class_device_attr_lpfc_devloss_tmo,
1109 &class_device_attr_lpfc_fcp_class,
1110 &class_device_attr_lpfc_use_adisc,
1111 &class_device_attr_lpfc_ack0,
1112 &class_device_attr_lpfc_topology,
1113 &class_device_attr_lpfc_scan_down,
1114 &class_device_attr_lpfc_link_speed,
1115 &class_device_attr_lpfc_cr_delay,
1116 &class_device_attr_lpfc_cr_count,
1117 &class_device_attr_lpfc_multi_ring_support,
1118 &class_device_attr_lpfc_multi_ring_rctl,
1119 &class_device_attr_lpfc_multi_ring_type,
1120 &class_device_attr_lpfc_fdmi_on,
1121 &class_device_attr_lpfc_max_luns,
1122 &class_device_attr_nport_evt_cnt,
1123 &class_device_attr_management_version,
1124 &class_device_attr_board_mode,
1125 &class_device_attr_issue_reset,
1126 &class_device_attr_lpfc_poll,
1127 &class_device_attr_lpfc_poll_tmo,
1128 &class_device_attr_lpfc_use_msi,
1129 &class_device_attr_lpfc_soft_wwnn,
1130 &class_device_attr_lpfc_soft_wwpn,
1131 &class_device_attr_lpfc_soft_wwn_enable,
1132 NULL,
1133 };
1134
1135 static ssize_t
1136 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1137 {
1138 size_t buf_off;
1139 struct Scsi_Host *host = class_to_shost(container_of(kobj,
1140 struct class_device, kobj));
1141 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1142
1143 if ((off + count) > FF_REG_AREA_SIZE)
1144 return -ERANGE;
1145
1146 if (count == 0) return 0;
1147
1148 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1149 return -EINVAL;
1150
1151 spin_lock_irq(phba->host->host_lock);
1152
1153 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1154 spin_unlock_irq(phba->host->host_lock);
1155 return -EPERM;
1156 }
1157
1158 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1159 writel(*((uint32_t *)(buf + buf_off)),
1160 phba->ctrl_regs_memmap_p + off + buf_off);
1161
1162 spin_unlock_irq(phba->host->host_lock);
1163
1164 return count;
1165 }
1166
1167 static ssize_t
1168 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1169 {
1170 size_t buf_off;
1171 uint32_t * tmp_ptr;
1172 struct Scsi_Host *host = class_to_shost(container_of(kobj,
1173 struct class_device, kobj));
1174 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1175
1176 if (off > FF_REG_AREA_SIZE)
1177 return -ERANGE;
1178
1179 if ((off + count) > FF_REG_AREA_SIZE)
1180 count = FF_REG_AREA_SIZE - off;
1181
1182 if (count == 0) return 0;
1183
1184 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1185 return -EINVAL;
1186
1187 spin_lock_irq(phba->host->host_lock);
1188
1189 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1190 tmp_ptr = (uint32_t *)(buf + buf_off);
1191 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1192 }
1193
1194 spin_unlock_irq(phba->host->host_lock);
1195
1196 return count;
1197 }
1198
1199 static struct bin_attribute sysfs_ctlreg_attr = {
1200 .attr = {
1201 .name = "ctlreg",
1202 .mode = S_IRUSR | S_IWUSR,
1203 .owner = THIS_MODULE,
1204 },
1205 .size = 256,
1206 .read = sysfs_ctlreg_read,
1207 .write = sysfs_ctlreg_write,
1208 };
1209
1210
1211 static void
1212 sysfs_mbox_idle (struct lpfc_hba * phba)
1213 {
1214 phba->sysfs_mbox.state = SMBOX_IDLE;
1215 phba->sysfs_mbox.offset = 0;
1216
1217 if (phba->sysfs_mbox.mbox) {
1218 mempool_free(phba->sysfs_mbox.mbox,
1219 phba->mbox_mem_pool);
1220 phba->sysfs_mbox.mbox = NULL;
1221 }
1222 }
1223
1224 static ssize_t
1225 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1226 {
1227 struct Scsi_Host * host =
1228 class_to_shost(container_of(kobj, struct class_device, kobj));
1229 struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
1230 struct lpfcMboxq * mbox = NULL;
1231
1232 if ((count + off) > MAILBOX_CMD_SIZE)
1233 return -ERANGE;
1234
1235 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1236 return -EINVAL;
1237
1238 if (count == 0)
1239 return 0;
1240
1241 if (off == 0) {
1242 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1243 if (!mbox)
1244 return -ENOMEM;
1245 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1246 }
1247
1248 spin_lock_irq(host->host_lock);
1249
1250 if (off == 0) {
1251 if (phba->sysfs_mbox.mbox)
1252 mempool_free(mbox, phba->mbox_mem_pool);
1253 else
1254 phba->sysfs_mbox.mbox = mbox;
1255 phba->sysfs_mbox.state = SMBOX_WRITING;
1256 } else {
1257 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
1258 phba->sysfs_mbox.offset != off ||
1259 phba->sysfs_mbox.mbox == NULL ) {
1260 sysfs_mbox_idle(phba);
1261 spin_unlock_irq(host->host_lock);
1262 return -EAGAIN;
1263 }
1264 }
1265
1266 memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1267 buf, count);
1268
1269 phba->sysfs_mbox.offset = off + count;
1270
1271 spin_unlock_irq(host->host_lock);
1272
1273 return count;
1274 }
1275
1276 static ssize_t
1277 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1278 {
1279 struct Scsi_Host *host =
1280 class_to_shost(container_of(kobj, struct class_device,
1281 kobj));
1282 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1283 int rc;
1284
1285 if (off > MAILBOX_CMD_SIZE)
1286 return -ERANGE;
1287
1288 if ((count + off) > MAILBOX_CMD_SIZE)
1289 count = MAILBOX_CMD_SIZE - off;
1290
1291 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1292 return -EINVAL;
1293
1294 if (off && count == 0)
1295 return 0;
1296
1297 spin_lock_irq(phba->host->host_lock);
1298
1299 if (off == 0 &&
1300 phba->sysfs_mbox.state == SMBOX_WRITING &&
1301 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1302
1303 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1304 /* Offline only */
1305 case MBX_WRITE_NV:
1306 case MBX_INIT_LINK:
1307 case MBX_DOWN_LINK:
1308 case MBX_CONFIG_LINK:
1309 case MBX_CONFIG_RING:
1310 case MBX_RESET_RING:
1311 case MBX_UNREG_LOGIN:
1312 case MBX_CLEAR_LA:
1313 case MBX_DUMP_CONTEXT:
1314 case MBX_RUN_DIAGS:
1315 case MBX_RESTART:
1316 case MBX_FLASH_WR_ULA:
1317 case MBX_SET_MASK:
1318 case MBX_SET_SLIM:
1319 case MBX_SET_DEBUG:
1320 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1321 printk(KERN_WARNING "mbox_read:Command 0x%x "
1322 "is illegal in on-line state\n",
1323 phba->sysfs_mbox.mbox->mb.mbxCommand);
1324 sysfs_mbox_idle(phba);
1325 spin_unlock_irq(phba->host->host_lock);
1326 return -EPERM;
1327 }
1328 case MBX_LOAD_SM:
1329 case MBX_READ_NV:
1330 case MBX_READ_CONFIG:
1331 case MBX_READ_RCONFIG:
1332 case MBX_READ_STATUS:
1333 case MBX_READ_XRI:
1334 case MBX_READ_REV:
1335 case MBX_READ_LNK_STAT:
1336 case MBX_DUMP_MEMORY:
1337 case MBX_DOWN_LOAD:
1338 case MBX_UPDATE_CFG:
1339 case MBX_KILL_BOARD:
1340 case MBX_LOAD_AREA:
1341 case MBX_LOAD_EXP_ROM:
1342 case MBX_BEACON:
1343 case MBX_DEL_LD_ENTRY:
1344 break;
1345 case MBX_READ_SPARM64:
1346 case MBX_READ_LA:
1347 case MBX_READ_LA64:
1348 case MBX_REG_LOGIN:
1349 case MBX_REG_LOGIN64:
1350 case MBX_CONFIG_PORT:
1351 case MBX_RUN_BIU_DIAG:
1352 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1353 phba->sysfs_mbox.mbox->mb.mbxCommand);
1354 sysfs_mbox_idle(phba);
1355 spin_unlock_irq(phba->host->host_lock);
1356 return -EPERM;
1357 default:
1358 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1359 phba->sysfs_mbox.mbox->mb.mbxCommand);
1360 sysfs_mbox_idle(phba);
1361 spin_unlock_irq(phba->host->host_lock);
1362 return -EPERM;
1363 }
1364
1365 if (phba->fc_flag & FC_BLOCK_MGMT_IO) {
1366 sysfs_mbox_idle(phba);
1367 spin_unlock_irq(host->host_lock);
1368 return -EAGAIN;
1369 }
1370
1371 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1372 (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1373
1374 spin_unlock_irq(phba->host->host_lock);
1375 rc = lpfc_sli_issue_mbox (phba,
1376 phba->sysfs_mbox.mbox,
1377 MBX_POLL);
1378 spin_lock_irq(phba->host->host_lock);
1379
1380 } else {
1381 spin_unlock_irq(phba->host->host_lock);
1382 rc = lpfc_sli_issue_mbox_wait (phba,
1383 phba->sysfs_mbox.mbox,
1384 lpfc_mbox_tmo_val(phba,
1385 phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1386 spin_lock_irq(phba->host->host_lock);
1387 }
1388
1389 if (rc != MBX_SUCCESS) {
1390 if (rc == MBX_TIMEOUT) {
1391 phba->sysfs_mbox.mbox->mbox_cmpl =
1392 lpfc_sli_def_mbox_cmpl;
1393 phba->sysfs_mbox.mbox = NULL;
1394 }
1395 sysfs_mbox_idle(phba);
1396 spin_unlock_irq(host->host_lock);
1397 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1398 }
1399 phba->sysfs_mbox.state = SMBOX_READING;
1400 }
1401 else if (phba->sysfs_mbox.offset != off ||
1402 phba->sysfs_mbox.state != SMBOX_READING) {
1403 printk(KERN_WARNING "mbox_read: Bad State\n");
1404 sysfs_mbox_idle(phba);
1405 spin_unlock_irq(host->host_lock);
1406 return -EAGAIN;
1407 }
1408
1409 memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1410
1411 phba->sysfs_mbox.offset = off + count;
1412
1413 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1414 sysfs_mbox_idle(phba);
1415
1416 spin_unlock_irq(phba->host->host_lock);
1417
1418 return count;
1419 }
1420
1421 static struct bin_attribute sysfs_mbox_attr = {
1422 .attr = {
1423 .name = "mbox",
1424 .mode = S_IRUSR | S_IWUSR,
1425 .owner = THIS_MODULE,
1426 },
1427 .size = MAILBOX_CMD_SIZE,
1428 .read = sysfs_mbox_read,
1429 .write = sysfs_mbox_write,
1430 };
1431
1432 int
1433 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1434 {
1435 struct Scsi_Host *host = phba->host;
1436 int error;
1437
1438 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1439 &sysfs_ctlreg_attr);
1440 if (error)
1441 goto out;
1442
1443 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1444 &sysfs_mbox_attr);
1445 if (error)
1446 goto out_remove_ctlreg_attr;
1447
1448 return 0;
1449 out_remove_ctlreg_attr:
1450 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1451 out:
1452 return error;
1453 }
1454
1455 void
1456 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1457 {
1458 struct Scsi_Host *host = phba->host;
1459
1460 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1461 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1462 }
1463
1464
1465 /*
1466 * Dynamic FC Host Attributes Support
1467 */
1468
1469 static void
1470 lpfc_get_host_port_id(struct Scsi_Host *shost)
1471 {
1472 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1473 /* note: fc_myDID already in cpu endianness */
1474 fc_host_port_id(shost) = phba->fc_myDID;
1475 }
1476
1477 static void
1478 lpfc_get_host_port_type(struct Scsi_Host *shost)
1479 {
1480 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1481
1482 spin_lock_irq(shost->host_lock);
1483
1484 if (phba->hba_state == LPFC_HBA_READY) {
1485 if (phba->fc_topology == TOPOLOGY_LOOP) {
1486 if (phba->fc_flag & FC_PUBLIC_LOOP)
1487 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1488 else
1489 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1490 } else {
1491 if (phba->fc_flag & FC_FABRIC)
1492 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1493 else
1494 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1495 }
1496 } else
1497 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1498
1499 spin_unlock_irq(shost->host_lock);
1500 }
1501
1502 static void
1503 lpfc_get_host_port_state(struct Scsi_Host *shost)
1504 {
1505 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1506
1507 spin_lock_irq(shost->host_lock);
1508
1509 if (phba->fc_flag & FC_OFFLINE_MODE)
1510 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1511 else {
1512 switch (phba->hba_state) {
1513 case LPFC_STATE_UNKNOWN:
1514 case LPFC_WARM_START:
1515 case LPFC_INIT_START:
1516 case LPFC_INIT_MBX_CMDS:
1517 case LPFC_LINK_DOWN:
1518 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1519 break;
1520 case LPFC_LINK_UP:
1521 case LPFC_LOCAL_CFG_LINK:
1522 case LPFC_FLOGI:
1523 case LPFC_FABRIC_CFG_LINK:
1524 case LPFC_NS_REG:
1525 case LPFC_NS_QRY:
1526 case LPFC_BUILD_DISC_LIST:
1527 case LPFC_DISC_AUTH:
1528 case LPFC_CLEAR_LA:
1529 case LPFC_HBA_READY:
1530 /* Links up, beyond this port_type reports state */
1531 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1532 break;
1533 case LPFC_HBA_ERROR:
1534 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1535 break;
1536 default:
1537 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1538 break;
1539 }
1540 }
1541
1542 spin_unlock_irq(shost->host_lock);
1543 }
1544
1545 static void
1546 lpfc_get_host_speed(struct Scsi_Host *shost)
1547 {
1548 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1549
1550 spin_lock_irq(shost->host_lock);
1551
1552 if (phba->hba_state == LPFC_HBA_READY) {
1553 switch(phba->fc_linkspeed) {
1554 case LA_1GHZ_LINK:
1555 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1556 break;
1557 case LA_2GHZ_LINK:
1558 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1559 break;
1560 case LA_4GHZ_LINK:
1561 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1562 break;
1563 case LA_8GHZ_LINK:
1564 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
1565 break;
1566 default:
1567 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1568 break;
1569 }
1570 }
1571
1572 spin_unlock_irq(shost->host_lock);
1573 }
1574
1575 static void
1576 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1577 {
1578 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1579 u64 node_name;
1580
1581 spin_lock_irq(shost->host_lock);
1582
1583 if ((phba->fc_flag & FC_FABRIC) ||
1584 ((phba->fc_topology == TOPOLOGY_LOOP) &&
1585 (phba->fc_flag & FC_PUBLIC_LOOP)))
1586 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1587 else
1588 /* fabric is local port if there is no F/FL_Port */
1589 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1590
1591 spin_unlock_irq(shost->host_lock);
1592
1593 fc_host_fabric_name(shost) = node_name;
1594 }
1595
1596 static void
1597 lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
1598 {
1599 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1600
1601 spin_lock_irq(shost->host_lock);
1602 lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
1603 spin_unlock_irq(shost->host_lock);
1604 }
1605
1606 static struct fc_host_statistics *
1607 lpfc_get_stats(struct Scsi_Host *shost)
1608 {
1609 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1610 struct lpfc_sli *psli = &phba->sli;
1611 struct fc_host_statistics *hs = &phba->link_stats;
1612 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1613 LPFC_MBOXQ_t *pmboxq;
1614 MAILBOX_t *pmb;
1615 unsigned long seconds;
1616 int rc = 0;
1617
1618 if (phba->fc_flag & FC_BLOCK_MGMT_IO)
1619 return NULL;
1620
1621 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1622 if (!pmboxq)
1623 return NULL;
1624 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1625
1626 pmb = &pmboxq->mb;
1627 pmb->mbxCommand = MBX_READ_STATUS;
1628 pmb->mbxOwner = OWN_HOST;
1629 pmboxq->context1 = NULL;
1630
1631 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1632 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1633 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1634 else
1635 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1636
1637 if (rc != MBX_SUCCESS) {
1638 if (rc == MBX_TIMEOUT)
1639 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1640 else
1641 mempool_free(pmboxq, phba->mbox_mem_pool);
1642 return NULL;
1643 }
1644
1645 memset(hs, 0, sizeof (struct fc_host_statistics));
1646
1647 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1648 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1649 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1650 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1651
1652 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1653 pmb->mbxCommand = MBX_READ_LNK_STAT;
1654 pmb->mbxOwner = OWN_HOST;
1655 pmboxq->context1 = NULL;
1656
1657 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1658 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1659 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1660 else
1661 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1662
1663 if (rc != MBX_SUCCESS) {
1664 if (rc == MBX_TIMEOUT)
1665 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1666 else
1667 mempool_free( pmboxq, phba->mbox_mem_pool);
1668 return NULL;
1669 }
1670
1671 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1672 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1673 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1674 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1675 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1676 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1677 hs->error_frames = pmb->un.varRdLnk.crcCnt;
1678
1679 hs->link_failure_count -= lso->link_failure_count;
1680 hs->loss_of_sync_count -= lso->loss_of_sync_count;
1681 hs->loss_of_signal_count -= lso->loss_of_signal_count;
1682 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1683 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1684 hs->invalid_crc_count -= lso->invalid_crc_count;
1685 hs->error_frames -= lso->error_frames;
1686
1687 if (phba->fc_topology == TOPOLOGY_LOOP) {
1688 hs->lip_count = (phba->fc_eventTag >> 1);
1689 hs->lip_count -= lso->link_events;
1690 hs->nos_count = -1;
1691 } else {
1692 hs->lip_count = -1;
1693 hs->nos_count = (phba->fc_eventTag >> 1);
1694 hs->nos_count -= lso->link_events;
1695 }
1696
1697 hs->dumped_frames = -1;
1698
1699 seconds = get_seconds();
1700 if (seconds < psli->stats_start)
1701 hs->seconds_since_last_reset = seconds +
1702 ((unsigned long)-1 - psli->stats_start);
1703 else
1704 hs->seconds_since_last_reset = seconds - psli->stats_start;
1705
1706 mempool_free(pmboxq, phba->mbox_mem_pool);
1707
1708 return hs;
1709 }
1710
1711 static void
1712 lpfc_reset_stats(struct Scsi_Host *shost)
1713 {
1714 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1715 struct lpfc_sli *psli = &phba->sli;
1716 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1717 LPFC_MBOXQ_t *pmboxq;
1718 MAILBOX_t *pmb;
1719 int rc = 0;
1720
1721 if (phba->fc_flag & FC_BLOCK_MGMT_IO)
1722 return;
1723
1724 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1725 if (!pmboxq)
1726 return;
1727 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1728
1729 pmb = &pmboxq->mb;
1730 pmb->mbxCommand = MBX_READ_STATUS;
1731 pmb->mbxOwner = OWN_HOST;
1732 pmb->un.varWords[0] = 0x1; /* reset request */
1733 pmboxq->context1 = NULL;
1734
1735 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1736 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1737 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1738 else
1739 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1740
1741 if (rc != MBX_SUCCESS) {
1742 if (rc == MBX_TIMEOUT)
1743 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1744 else
1745 mempool_free(pmboxq, phba->mbox_mem_pool);
1746 return;
1747 }
1748
1749 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1750 pmb->mbxCommand = MBX_READ_LNK_STAT;
1751 pmb->mbxOwner = OWN_HOST;
1752 pmboxq->context1 = NULL;
1753
1754 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1755 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1756 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1757 else
1758 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1759
1760 if (rc != MBX_SUCCESS) {
1761 if (rc == MBX_TIMEOUT)
1762 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1763 else
1764 mempool_free( pmboxq, phba->mbox_mem_pool);
1765 return;
1766 }
1767
1768 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1769 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1770 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1771 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1772 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1773 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1774 lso->error_frames = pmb->un.varRdLnk.crcCnt;
1775 lso->link_events = (phba->fc_eventTag >> 1);
1776
1777 psli->stats_start = get_seconds();
1778
1779 mempool_free(pmboxq, phba->mbox_mem_pool);
1780
1781 return;
1782 }
1783
1784 /*
1785 * The LPFC driver treats linkdown handling as target loss events so there
1786 * are no sysfs handlers for link_down_tmo.
1787 */
1788
1789 static struct lpfc_nodelist *
1790 lpfc_get_node_by_target(struct scsi_target *starget)
1791 {
1792 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1793 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1794 struct lpfc_nodelist *ndlp;
1795
1796 spin_lock_irq(shost->host_lock);
1797 /* Search for this, mapped, target ID */
1798 list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp) {
1799 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
1800 starget->id == ndlp->nlp_sid) {
1801 spin_unlock_irq(shost->host_lock);
1802 return ndlp;
1803 }
1804 }
1805 spin_unlock_irq(shost->host_lock);
1806 return NULL;
1807 }
1808
1809 static void
1810 lpfc_get_starget_port_id(struct scsi_target *starget)
1811 {
1812 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
1813
1814 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
1815 }
1816
1817 static void
1818 lpfc_get_starget_node_name(struct scsi_target *starget)
1819 {
1820 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
1821
1822 fc_starget_node_name(starget) =
1823 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
1824 }
1825
1826 static void
1827 lpfc_get_starget_port_name(struct scsi_target *starget)
1828 {
1829 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
1830
1831 fc_starget_port_name(starget) =
1832 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
1833 }
1834
1835 static void
1836 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1837 {
1838 if (timeout)
1839 rport->dev_loss_tmo = timeout;
1840 else
1841 rport->dev_loss_tmo = 1;
1842 }
1843
1844
1845 #define lpfc_rport_show_function(field, format_string, sz, cast) \
1846 static ssize_t \
1847 lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
1848 { \
1849 struct fc_rport *rport = transport_class_to_rport(cdev); \
1850 struct lpfc_rport_data *rdata = rport->hostdata; \
1851 return snprintf(buf, sz, format_string, \
1852 (rdata->target) ? cast rdata->target->field : 0); \
1853 }
1854
1855 #define lpfc_rport_rd_attr(field, format_string, sz) \
1856 lpfc_rport_show_function(field, format_string, sz, ) \
1857 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1858
1859
1860 struct fc_function_template lpfc_transport_functions = {
1861 /* fixed attributes the driver supports */
1862 .show_host_node_name = 1,
1863 .show_host_port_name = 1,
1864 .show_host_supported_classes = 1,
1865 .show_host_supported_fc4s = 1,
1866 .show_host_supported_speeds = 1,
1867 .show_host_maxframe_size = 1,
1868
1869 /* dynamic attributes the driver supports */
1870 .get_host_port_id = lpfc_get_host_port_id,
1871 .show_host_port_id = 1,
1872
1873 .get_host_port_type = lpfc_get_host_port_type,
1874 .show_host_port_type = 1,
1875
1876 .get_host_port_state = lpfc_get_host_port_state,
1877 .show_host_port_state = 1,
1878
1879 /* active_fc4s is shown but doesn't change (thus no get function) */
1880 .show_host_active_fc4s = 1,
1881
1882 .get_host_speed = lpfc_get_host_speed,
1883 .show_host_speed = 1,
1884
1885 .get_host_fabric_name = lpfc_get_host_fabric_name,
1886 .show_host_fabric_name = 1,
1887
1888 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
1889 .show_host_symbolic_name = 1,
1890
1891 /*
1892 * The LPFC driver treats linkdown handling as target loss events
1893 * so there are no sysfs handlers for link_down_tmo.
1894 */
1895
1896 .get_fc_host_stats = lpfc_get_stats,
1897 .reset_fc_host_stats = lpfc_reset_stats,
1898
1899 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1900 .show_rport_maxframe_size = 1,
1901 .show_rport_supported_classes = 1,
1902
1903 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1904 .show_rport_dev_loss_tmo = 1,
1905
1906 .get_starget_port_id = lpfc_get_starget_port_id,
1907 .show_starget_port_id = 1,
1908
1909 .get_starget_node_name = lpfc_get_starget_node_name,
1910 .show_starget_node_name = 1,
1911
1912 .get_starget_port_name = lpfc_get_starget_port_name,
1913 .show_starget_port_name = 1,
1914
1915 .issue_fc_host_lip = lpfc_issue_lip,
1916 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
1917 .terminate_rport_io = lpfc_terminate_rport_io,
1918 };
1919
1920 void
1921 lpfc_get_cfgparam(struct lpfc_hba *phba)
1922 {
1923 lpfc_log_verbose_init(phba, lpfc_log_verbose);
1924 lpfc_cr_delay_init(phba, lpfc_cr_delay);
1925 lpfc_cr_count_init(phba, lpfc_cr_count);
1926 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1927 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
1928 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
1929 lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1930 lpfc_fcp_class_init(phba, lpfc_fcp_class);
1931 lpfc_use_adisc_init(phba, lpfc_use_adisc);
1932 lpfc_ack0_init(phba, lpfc_ack0);
1933 lpfc_topology_init(phba, lpfc_topology);
1934 lpfc_scan_down_init(phba, lpfc_scan_down);
1935 lpfc_link_speed_init(phba, lpfc_link_speed);
1936 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1937 lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1938 lpfc_max_luns_init(phba, lpfc_max_luns);
1939 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1940 lpfc_use_msi_init(phba, lpfc_use_msi);
1941 lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
1942 lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1943 phba->cfg_poll = lpfc_poll;
1944 phba->cfg_soft_wwnn = 0L;
1945 phba->cfg_soft_wwpn = 0L;
1946
1947 /*
1948 * The total number of segments is the configuration value plus 2
1949 * since the IOCB need a command and response bde.
1950 */
1951 phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1952
1953 /*
1954 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1955 * used to create the sg_dma_buf_pool must be dynamically calculated
1956 */
1957 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1958 sizeof(struct fcp_rsp) +
1959 (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1960
1961
1962 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1963
1964 return;
1965 }
kernel source for telekom puls (alcatel/mediatek)