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Linux 2.6.17.7
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_attr.c
blobb62a72dfab296f46991abe51a9a3105f7358e597
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/ctype.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_tcq.h>
30 #include <scsi/scsi_transport_fc.h>
31
32 #include "lpfc_hw.h"
33 #include "lpfc_sli.h"
34 #include "lpfc_disc.h"
35 #include "lpfc_scsi.h"
36 #include "lpfc.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_version.h"
39 #include "lpfc_compat.h"
40 #include "lpfc_crtn.h"
41
42
43 static void
44 lpfc_jedec_to_ascii(int incr, char hdw[])
45 {
46 int i, j;
47 for (i = 0; i < 8; i++) {
48 j = (incr & 0xf);
49 if (j <= 9)
50 hdw[7 - i] = 0x30 + j;
51 else
52 hdw[7 - i] = 0x61 + j - 10;
53 incr = (incr >> 4);
54 }
55 hdw[8] = 0;
56 return;
57 }
58
59 static ssize_t
60 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
61 {
62 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
63 }
64
65 static ssize_t
66 management_version_show(struct class_device *cdev, char *buf)
67 {
68 return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
69 }
70
71 static ssize_t
72 lpfc_info_show(struct class_device *cdev, char *buf)
73 {
74 struct Scsi_Host *host = class_to_shost(cdev);
75 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
76 }
77
78 static ssize_t
79 lpfc_serialnum_show(struct class_device *cdev, char *buf)
80 {
81 struct Scsi_Host *host = class_to_shost(cdev);
82 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
83 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
84 }
85
86 static ssize_t
87 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
88 {
89 struct Scsi_Host *host = class_to_shost(cdev);
90 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
91 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
92 }
93
94 static ssize_t
95 lpfc_modelname_show(struct class_device *cdev, char *buf)
96 {
97 struct Scsi_Host *host = class_to_shost(cdev);
98 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
99 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
100 }
101
102 static ssize_t
103 lpfc_programtype_show(struct class_device *cdev, char *buf)
104 {
105 struct Scsi_Host *host = class_to_shost(cdev);
106 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
107 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
108 }
109
110 static ssize_t
111 lpfc_portnum_show(struct class_device *cdev, char *buf)
112 {
113 struct Scsi_Host *host = class_to_shost(cdev);
114 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
115 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
116 }
117
118 static ssize_t
119 lpfc_fwrev_show(struct class_device *cdev, char *buf)
120 {
121 struct Scsi_Host *host = class_to_shost(cdev);
122 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
123 char fwrev[32];
124 lpfc_decode_firmware_rev(phba, fwrev, 1);
125 return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
126 }
127
128 static ssize_t
129 lpfc_hdw_show(struct class_device *cdev, char *buf)
130 {
131 char hdw[9];
132 struct Scsi_Host *host = class_to_shost(cdev);
133 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
134 lpfc_vpd_t *vp = &phba->vpd;
135 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
136 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
137 }
138 static ssize_t
139 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
140 {
141 struct Scsi_Host *host = class_to_shost(cdev);
142 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
143 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
144 }
145 static ssize_t
146 lpfc_state_show(struct class_device *cdev, char *buf)
147 {
148 struct Scsi_Host *host = class_to_shost(cdev);
149 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
150 int len = 0;
151 switch (phba->hba_state) {
152 case LPFC_STATE_UNKNOWN:
153 case LPFC_WARM_START:
154 case LPFC_INIT_START:
155 case LPFC_INIT_MBX_CMDS:
156 case LPFC_LINK_DOWN:
157 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
158 break;
159 case LPFC_LINK_UP:
160 case LPFC_LOCAL_CFG_LINK:
161 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
162 break;
163 case LPFC_FLOGI:
164 case LPFC_FABRIC_CFG_LINK:
165 case LPFC_NS_REG:
166 case LPFC_NS_QRY:
167 case LPFC_BUILD_DISC_LIST:
168 case LPFC_DISC_AUTH:
169 case LPFC_CLEAR_LA:
170 len += snprintf(buf + len, PAGE_SIZE-len,
171 "Link Up - Discovery\n");
172 break;
173 case LPFC_HBA_READY:
174 len += snprintf(buf + len, PAGE_SIZE-len,
175 "Link Up - Ready:\n");
176 if (phba->fc_topology == TOPOLOGY_LOOP) {
177 if (phba->fc_flag & FC_PUBLIC_LOOP)
178 len += snprintf(buf + len, PAGE_SIZE-len,
179 " Public Loop\n");
180 else
181 len += snprintf(buf + len, PAGE_SIZE-len,
182 " Private Loop\n");
183 } else {
184 if (phba->fc_flag & FC_FABRIC)
185 len += snprintf(buf + len, PAGE_SIZE-len,
186 " Fabric\n");
187 else
188 len += snprintf(buf + len, PAGE_SIZE-len,
189 " Point-2-Point\n");
190 }
191 }
192 return len;
193 }
194
195 static ssize_t
196 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
197 {
198 struct Scsi_Host *host = class_to_shost(cdev);
199 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
200 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
201 phba->fc_unmap_cnt);
202 }
203
204
205 static int
206 lpfc_issue_lip(struct Scsi_Host *host)
207 {
208 struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
209 LPFC_MBOXQ_t *pmboxq;
210 int mbxstatus = MBXERR_ERROR;
211
212 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
213 (phba->hba_state != LPFC_HBA_READY))
214 return -EPERM;
215
216 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
217
218 if (!pmboxq)
219 return -ENOMEM;
220
221 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
222 lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
223 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
224
225 if (mbxstatus == MBX_TIMEOUT)
226 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
227 else
228 mempool_free(pmboxq, phba->mbox_mem_pool);
229
230 if (mbxstatus == MBXERR_ERROR)
231 return -EIO;
232
233 return 0;
234 }
235
236 static ssize_t
237 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
238 {
239 struct Scsi_Host *host = class_to_shost(cdev);
240 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
241 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
242 }
243
244 static ssize_t
245 lpfc_board_online_show(struct class_device *cdev, char *buf)
246 {
247 struct Scsi_Host *host = class_to_shost(cdev);
248 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
249
250 if (phba->fc_flag & FC_OFFLINE_MODE)
251 return snprintf(buf, PAGE_SIZE, "0\n");
252 else
253 return snprintf(buf, PAGE_SIZE, "1\n");
254 }
255
256 static ssize_t
257 lpfc_board_online_store(struct class_device *cdev, const char *buf,
258 size_t count)
259 {
260 struct Scsi_Host *host = class_to_shost(cdev);
261 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
262 struct completion online_compl;
263 int val=0, status=0;
264
265 if (sscanf(buf, "%d", &val) != 1)
266 return -EINVAL;
267
268 init_completion(&online_compl);
269
270 if (val)
271 lpfc_workq_post_event(phba, &status, &online_compl,
272 LPFC_EVT_ONLINE);
273 else
274 lpfc_workq_post_event(phba, &status, &online_compl,
275 LPFC_EVT_OFFLINE);
276 wait_for_completion(&online_compl);
277 if (!status)
278 return strlen(buf);
279 else
280 return -EIO;
281 }
282
283 static ssize_t
284 lpfc_board_mode_show(struct class_device *cdev, char *buf)
285 {
286 struct Scsi_Host *host = class_to_shost(cdev);
287 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
288 char * state;
289
290 if (phba->hba_state == LPFC_HBA_ERROR)
291 state = "error";
292 else if (phba->hba_state == LPFC_WARM_START)
293 state = "warm start";
294 else if (phba->hba_state == LPFC_INIT_START)
295 state = "offline";
296 else
297 state = "online";
298
299 return snprintf(buf, PAGE_SIZE, "%s\n", state);
300 }
301
302 static ssize_t
303 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
304 {
305 struct Scsi_Host *host = class_to_shost(cdev);
306 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
307 struct completion online_compl;
308 int status=0;
309
310 init_completion(&online_compl);
311
312 if(strncmp(buf, "online", sizeof("online") - 1) == 0)
313 lpfc_workq_post_event(phba, &status, &online_compl,
314 LPFC_EVT_ONLINE);
315 else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
316 lpfc_workq_post_event(phba, &status, &online_compl,
317 LPFC_EVT_OFFLINE);
318 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
319 lpfc_workq_post_event(phba, &status, &online_compl,
320 LPFC_EVT_WARM_START);
321 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
322 lpfc_workq_post_event(phba, &status, &online_compl,
323 LPFC_EVT_KILL);
324 else
325 return -EINVAL;
326
327 wait_for_completion(&online_compl);
328
329 if (!status)
330 return strlen(buf);
331 else
332 return -EIO;
333 }
334
335 static ssize_t
336 lpfc_poll_show(struct class_device *cdev, char *buf)
337 {
338 struct Scsi_Host *host = class_to_shost(cdev);
339 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
340
341 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
342 }
343
344 static ssize_t
345 lpfc_poll_store(struct class_device *cdev, const char *buf,
346 size_t count)
347 {
348 struct Scsi_Host *host = class_to_shost(cdev);
349 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
350 uint32_t creg_val;
351 uint32_t old_val;
352 int val=0;
353
354 if (!isdigit(buf[0]))
355 return -EINVAL;
356
357 if (sscanf(buf, "%i", &val) != 1)
358 return -EINVAL;
359
360 if ((val & 0x3) != val)
361 return -EINVAL;
362
363 spin_lock_irq(phba->host->host_lock);
364
365 old_val = phba->cfg_poll;
366
367 if (val & ENABLE_FCP_RING_POLLING) {
368 if ((val & DISABLE_FCP_RING_INT) &&
369 !(old_val & DISABLE_FCP_RING_INT)) {
370 creg_val = readl(phba->HCregaddr);
371 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
372 writel(creg_val, phba->HCregaddr);
373 readl(phba->HCregaddr); /* flush */
374
375 lpfc_poll_start_timer(phba);
376 }
377 } else if (val != 0x0) {
378 spin_unlock_irq(phba->host->host_lock);
379 return -EINVAL;
380 }
381
382 if (!(val & DISABLE_FCP_RING_INT) &&
383 (old_val & DISABLE_FCP_RING_INT))
384 {
385 spin_unlock_irq(phba->host->host_lock);
386 del_timer(&phba->fcp_poll_timer);
387 spin_lock_irq(phba->host->host_lock);
388 creg_val = readl(phba->HCregaddr);
389 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
390 writel(creg_val, phba->HCregaddr);
391 readl(phba->HCregaddr); /* flush */
392 }
393
394 phba->cfg_poll = val;
395
396 spin_unlock_irq(phba->host->host_lock);
397
398 return strlen(buf);
399 }
400
401 #define lpfc_param_show(attr) \
402 static ssize_t \
403 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
404 { \
405 struct Scsi_Host *host = class_to_shost(cdev);\
406 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
407 int val = 0;\
408 val = phba->cfg_##attr;\
409 return snprintf(buf, PAGE_SIZE, "%d\n",\
410 phba->cfg_##attr);\
411 }
412
413 #define lpfc_param_hex_show(attr) \
414 static ssize_t \
415 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
416 { \
417 struct Scsi_Host *host = class_to_shost(cdev);\
418 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
419 int val = 0;\
420 val = phba->cfg_##attr;\
421 return snprintf(buf, PAGE_SIZE, "%#x\n",\
422 phba->cfg_##attr);\
423 }
424
425 #define lpfc_param_init(attr, default, minval, maxval) \
426 static int \
427 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
428 { \
429 if (val >= minval && val <= maxval) {\
430 phba->cfg_##attr = val;\
431 return 0;\
432 }\
433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
434 "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
435 "allowed range is ["#minval", "#maxval"]\n", \
436 phba->brd_no, val); \
437 phba->cfg_##attr = default;\
438 return -EINVAL;\
439 }
440
441 #define lpfc_param_set(attr, default, minval, maxval) \
442 static int \
443 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
444 { \
445 if (val >= minval && val <= maxval) {\
446 phba->cfg_##attr = val;\
447 return 0;\
448 }\
449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
450 "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
451 "allowed range is ["#minval", "#maxval"]\n", \
452 phba->brd_no, val); \
453 return -EINVAL;\
454 }
455
456 #define lpfc_param_store(attr) \
457 static ssize_t \
458 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
459 { \
460 struct Scsi_Host *host = class_to_shost(cdev);\
461 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
462 int val=0;\
463 if (!isdigit(buf[0]))\
464 return -EINVAL;\
465 if (sscanf(buf, "%i", &val) != 1)\
466 return -EINVAL;\
467 if (lpfc_##attr##_set(phba, val) == 0) \
468 return strlen(buf);\
469 else \
470 return -EINVAL;\
471 }
472
473 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
474 static int lpfc_##name = defval;\
475 module_param(lpfc_##name, int, 0);\
476 MODULE_PARM_DESC(lpfc_##name, desc);\
477 lpfc_param_init(name, defval, minval, maxval)
478
479 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
480 static int lpfc_##name = defval;\
481 module_param(lpfc_##name, int, 0);\
482 MODULE_PARM_DESC(lpfc_##name, desc);\
483 lpfc_param_show(name)\
484 lpfc_param_init(name, defval, minval, maxval)\
485 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
486
487 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
488 static int lpfc_##name = defval;\
489 module_param(lpfc_##name, int, 0);\
490 MODULE_PARM_DESC(lpfc_##name, desc);\
491 lpfc_param_show(name)\
492 lpfc_param_init(name, defval, minval, maxval)\
493 lpfc_param_set(name, defval, minval, maxval)\
494 lpfc_param_store(name)\
495 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
496 lpfc_##name##_show, lpfc_##name##_store)
497
498 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
499 static int lpfc_##name = defval;\
500 module_param(lpfc_##name, int, 0);\
501 MODULE_PARM_DESC(lpfc_##name, desc);\
502 lpfc_param_hex_show(name)\
503 lpfc_param_init(name, defval, minval, maxval)\
504 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
505
506 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
507 static int lpfc_##name = defval;\
508 module_param(lpfc_##name, int, 0);\
509 MODULE_PARM_DESC(lpfc_##name, desc);\
510 lpfc_param_hex_show(name)\
511 lpfc_param_init(name, defval, minval, maxval)\
512 lpfc_param_set(name, defval, minval, maxval)\
513 lpfc_param_store(name)\
514 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
515 lpfc_##name##_show, lpfc_##name##_store)
516
517 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
518 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
519 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
520 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
521 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
522 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
523 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
524 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
525 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
526 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
527 lpfc_option_rom_version_show, NULL);
528 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
529 lpfc_num_discovered_ports_show, NULL);
530 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
531 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
532 NULL);
533 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
534 NULL);
535 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
536 lpfc_board_online_show, lpfc_board_online_store);
537 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
538 lpfc_board_mode_show, lpfc_board_mode_store);
539
540 static int lpfc_poll = 0;
541 module_param(lpfc_poll, int, 0);
542 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
543 " 0 - none,"
544 " 1 - poll with interrupts enabled"
545 " 3 - poll and disable FCP ring interrupts");
546
547 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
548 lpfc_poll_show, lpfc_poll_store);
549
550 /*
551 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
552 # deluged with LOTS of information.
553 # You can set a bit mask to record specific types of verbose messages:
554 #
555 # LOG_ELS 0x1 ELS events
556 # LOG_DISCOVERY 0x2 Link discovery events
557 # LOG_MBOX 0x4 Mailbox events
558 # LOG_INIT 0x8 Initialization events
559 # LOG_LINK_EVENT 0x10 Link events
560 # LOG_IP 0x20 IP traffic history
561 # LOG_FCP 0x40 FCP traffic history
562 # LOG_NODE 0x80 Node table events
563 # LOG_MISC 0x400 Miscellaneous events
564 # LOG_SLI 0x800 SLI events
565 # LOG_CHK_COND 0x1000 FCP Check condition flag
566 # LOG_LIBDFC 0x2000 LIBDFC events
567 # LOG_ALL_MSG 0xffff LOG all messages
568 */
569 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
570
571 /*
572 # lun_queue_depth: This parameter is used to limit the number of outstanding
573 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
574 */
575 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
576 "Max number of FCP commands we can queue to a specific LUN");
577
578 /*
579 # hba_queue_depth: This parameter is used to limit the number of outstanding
580 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
581 # value is greater than the maximum number of exchanges supported by the HBA,
582 # then maximum number of exchanges supported by the HBA is used to determine
583 # the hba_queue_depth.
584 */
585 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
586 "Max number of FCP commands we can queue to a lpfc HBA");
587
588 /*
589 # Some disk devices have a "select ID" or "select Target" capability.
590 # From a protocol standpoint "select ID" usually means select the
591 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
592 # annex" which contains a table that maps a "select ID" (a number
593 # between 0 and 7F) to an ALPA. By default, for compatibility with
594 # older drivers, the lpfc driver scans this table from low ALPA to high
595 # ALPA.
596 #
597 # Turning on the scan-down variable (on = 1, off = 0) will
598 # cause the lpfc driver to use an inverted table, effectively
599 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
600 #
601 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
602 # and will not work across a fabric. Also this parameter will take
603 # effect only in the case when ALPA map is not available.)
604 */
605 LPFC_ATTR_R(scan_down, 1, 0, 1,
606 "Start scanning for devices from highest ALPA to lowest");
607
608 /*
609 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
610 # until the timer expires. Value range is [0,255]. Default value is 30.
611 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
612 */
613 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
614 "Seconds driver will hold I/O waiting for a device to come back");
615
616 /*
617 # lpfc_topology: link topology for init link
618 # 0x0 = attempt loop mode then point-to-point
619 # 0x01 = internal loopback mode
620 # 0x02 = attempt point-to-point mode only
621 # 0x04 = attempt loop mode only
622 # 0x06 = attempt point-to-point mode then loop
623 # Set point-to-point mode if you want to run as an N_Port.
624 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
625 # Default value is 0.
626 */
627 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
628
629 /*
630 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
631 # connection.
632 # 0 = auto select (default)
633 # 1 = 1 Gigabaud
634 # 2 = 2 Gigabaud
635 # 4 = 4 Gigabaud
636 # Value range is [0,4]. Default value is 0.
637 */
638 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
639
640 /*
641 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
642 # Value range is [2,3]. Default value is 3.
643 */
644 LPFC_ATTR_R(fcp_class, 3, 2, 3,
645 "Select Fibre Channel class of service for FCP sequences");
646
647 /*
648 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
649 # is [0,1]. Default value is 0.
650 */
651 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
652 "Use ADISC on rediscovery to authenticate FCP devices");
653
654 /*
655 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
656 # range is [0,1]. Default value is 0.
657 */
658 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
659
660 /*
661 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
662 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
663 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
664 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
665 # cr_delay is set to 0.
666 */
667 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
668 "interrupt response is generated");
669
670 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
671 "interrupt response is generated");
672
673 /*
674 # lpfc_multi_ring_support: Determines how many rings to spread available
675 # cmd/rsp IOCB entries across.
676 # Value range is [1,2]. Default value is 1.
677 */
678 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
679 "SLI rings to spread IOCB entries across");
680
681 /*
682 # lpfc_fdmi_on: controls FDMI support.
683 # 0 = no FDMI support
684 # 1 = support FDMI without attribute of hostname
685 # 2 = support FDMI with attribute of hostname
686 # Value range [0,2]. Default value is 0.
687 */
688 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
689
690 /*
691 # Specifies the maximum number of ELS cmds we can have outstanding (for
692 # discovery). Value range is [1,64]. Default value = 32.
693 */
694 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
695 "during discovery");
696
697 /*
698 # lpfc_max_luns: maximum number of LUNs per target driver will support
699 # Value range is [1,32768]. Default value is 256.
700 # NOTE: The SCSI layer will scan each target for this many luns
701 */
702 LPFC_ATTR_R(max_luns, 256, 1, 32768,
703 "Maximum number of LUNs per target driver will support");
704
705 /*
706 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
707 # Value range is [1,255], default value is 10.
708 */
709 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
710 "Milliseconds driver will wait between polling FCP ring");
711
712 struct class_device_attribute *lpfc_host_attrs[] = {
713 &class_device_attr_info,
714 &class_device_attr_serialnum,
715 &class_device_attr_modeldesc,
716 &class_device_attr_modelname,
717 &class_device_attr_programtype,
718 &class_device_attr_portnum,
719 &class_device_attr_fwrev,
720 &class_device_attr_hdw,
721 &class_device_attr_option_rom_version,
722 &class_device_attr_state,
723 &class_device_attr_num_discovered_ports,
724 &class_device_attr_lpfc_drvr_version,
725 &class_device_attr_lpfc_log_verbose,
726 &class_device_attr_lpfc_lun_queue_depth,
727 &class_device_attr_lpfc_hba_queue_depth,
728 &class_device_attr_lpfc_nodev_tmo,
729 &class_device_attr_lpfc_fcp_class,
730 &class_device_attr_lpfc_use_adisc,
731 &class_device_attr_lpfc_ack0,
732 &class_device_attr_lpfc_topology,
733 &class_device_attr_lpfc_scan_down,
734 &class_device_attr_lpfc_link_speed,
735 &class_device_attr_lpfc_cr_delay,
736 &class_device_attr_lpfc_cr_count,
737 &class_device_attr_lpfc_multi_ring_support,
738 &class_device_attr_lpfc_fdmi_on,
739 &class_device_attr_lpfc_max_luns,
740 &class_device_attr_nport_evt_cnt,
741 &class_device_attr_management_version,
742 &class_device_attr_board_online,
743 &class_device_attr_board_mode,
744 &class_device_attr_lpfc_poll,
745 &class_device_attr_lpfc_poll_tmo,
746 NULL,
747 };
748
749 static ssize_t
750 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
751 {
752 size_t buf_off;
753 struct Scsi_Host *host = class_to_shost(container_of(kobj,
754 struct class_device, kobj));
755 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
756
757 if ((off + count) > FF_REG_AREA_SIZE)
758 return -ERANGE;
759
760 if (count == 0) return 0;
761
762 if (off % 4 || count % 4 || (unsigned long)buf % 4)
763 return -EINVAL;
764
765 spin_lock_irq(phba->host->host_lock);
766
767 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
768 spin_unlock_irq(phba->host->host_lock);
769 return -EPERM;
770 }
771
772 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
773 writel(*((uint32_t *)(buf + buf_off)),
774 phba->ctrl_regs_memmap_p + off + buf_off);
775
776 spin_unlock_irq(phba->host->host_lock);
777
778 return count;
779 }
780
781 static ssize_t
782 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
783 {
784 size_t buf_off;
785 uint32_t * tmp_ptr;
786 struct Scsi_Host *host = class_to_shost(container_of(kobj,
787 struct class_device, kobj));
788 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
789
790 if (off > FF_REG_AREA_SIZE)
791 return -ERANGE;
792
793 if ((off + count) > FF_REG_AREA_SIZE)
794 count = FF_REG_AREA_SIZE - off;
795
796 if (count == 0) return 0;
797
798 if (off % 4 || count % 4 || (unsigned long)buf % 4)
799 return -EINVAL;
800
801 spin_lock_irq(phba->host->host_lock);
802
803 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
804 tmp_ptr = (uint32_t *)(buf + buf_off);
805 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
806 }
807
808 spin_unlock_irq(phba->host->host_lock);
809
810 return count;
811 }
812
813 static struct bin_attribute sysfs_ctlreg_attr = {
814 .attr = {
815 .name = "ctlreg",
816 .mode = S_IRUSR | S_IWUSR,
817 .owner = THIS_MODULE,
818 },
819 .size = 256,
820 .read = sysfs_ctlreg_read,
821 .write = sysfs_ctlreg_write,
822 };
823
824
825 static void
826 sysfs_mbox_idle (struct lpfc_hba * phba)
827 {
828 phba->sysfs_mbox.state = SMBOX_IDLE;
829 phba->sysfs_mbox.offset = 0;
830
831 if (phba->sysfs_mbox.mbox) {
832 mempool_free(phba->sysfs_mbox.mbox,
833 phba->mbox_mem_pool);
834 phba->sysfs_mbox.mbox = NULL;
835 }
836 }
837
838 static ssize_t
839 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
840 {
841 struct Scsi_Host * host =
842 class_to_shost(container_of(kobj, struct class_device, kobj));
843 struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
844 struct lpfcMboxq * mbox = NULL;
845
846 if ((count + off) > MAILBOX_CMD_SIZE)
847 return -ERANGE;
848
849 if (off % 4 || count % 4 || (unsigned long)buf % 4)
850 return -EINVAL;
851
852 if (count == 0)
853 return 0;
854
855 if (off == 0) {
856 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
857 if (!mbox)
858 return -ENOMEM;
859 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
860 }
861
862 spin_lock_irq(host->host_lock);
863
864 if (off == 0) {
865 if (phba->sysfs_mbox.mbox)
866 mempool_free(mbox, phba->mbox_mem_pool);
867 else
868 phba->sysfs_mbox.mbox = mbox;
869 phba->sysfs_mbox.state = SMBOX_WRITING;
870 } else {
871 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
872 phba->sysfs_mbox.offset != off ||
873 phba->sysfs_mbox.mbox == NULL ) {
874 sysfs_mbox_idle(phba);
875 spin_unlock_irq(host->host_lock);
876 return -EINVAL;
877 }
878 }
879
880 memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
881 buf, count);
882
883 phba->sysfs_mbox.offset = off + count;
884
885 spin_unlock_irq(host->host_lock);
886
887 return count;
888 }
889
890 static ssize_t
891 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
892 {
893 struct Scsi_Host *host =
894 class_to_shost(container_of(kobj, struct class_device,
895 kobj));
896 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
897 int rc;
898
899 if (off > sizeof(MAILBOX_t))
900 return -ERANGE;
901
902 if ((count + off) > sizeof(MAILBOX_t))
903 count = sizeof(MAILBOX_t) - off;
904
905 if (off % 4 || count % 4 || (unsigned long)buf % 4)
906 return -EINVAL;
907
908 if (off && count == 0)
909 return 0;
910
911 spin_lock_irq(phba->host->host_lock);
912
913 if (off == 0 &&
914 phba->sysfs_mbox.state == SMBOX_WRITING &&
915 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
916
917 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
918 /* Offline only */
919 case MBX_WRITE_NV:
920 case MBX_INIT_LINK:
921 case MBX_DOWN_LINK:
922 case MBX_CONFIG_LINK:
923 case MBX_CONFIG_RING:
924 case MBX_RESET_RING:
925 case MBX_UNREG_LOGIN:
926 case MBX_CLEAR_LA:
927 case MBX_DUMP_CONTEXT:
928 case MBX_RUN_DIAGS:
929 case MBX_RESTART:
930 case MBX_FLASH_WR_ULA:
931 case MBX_SET_MASK:
932 case MBX_SET_SLIM:
933 case MBX_SET_DEBUG:
934 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
935 printk(KERN_WARNING "mbox_read:Command 0x%x "
936 "is illegal in on-line state\n",
937 phba->sysfs_mbox.mbox->mb.mbxCommand);
938 sysfs_mbox_idle(phba);
939 spin_unlock_irq(phba->host->host_lock);
940 return -EPERM;
941 }
942 case MBX_LOAD_SM:
943 case MBX_READ_NV:
944 case MBX_READ_CONFIG:
945 case MBX_READ_RCONFIG:
946 case MBX_READ_STATUS:
947 case MBX_READ_XRI:
948 case MBX_READ_REV:
949 case MBX_READ_LNK_STAT:
950 case MBX_DUMP_MEMORY:
951 case MBX_DOWN_LOAD:
952 case MBX_UPDATE_CFG:
953 case MBX_KILL_BOARD:
954 case MBX_LOAD_AREA:
955 case MBX_LOAD_EXP_ROM:
956 case MBX_BEACON:
957 case MBX_DEL_LD_ENTRY:
958 break;
959 case MBX_READ_SPARM64:
960 case MBX_READ_LA:
961 case MBX_READ_LA64:
962 case MBX_REG_LOGIN:
963 case MBX_REG_LOGIN64:
964 case MBX_CONFIG_PORT:
965 case MBX_RUN_BIU_DIAG:
966 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
967 phba->sysfs_mbox.mbox->mb.mbxCommand);
968 sysfs_mbox_idle(phba);
969 spin_unlock_irq(phba->host->host_lock);
970 return -EPERM;
971 default:
972 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
973 phba->sysfs_mbox.mbox->mb.mbxCommand);
974 sysfs_mbox_idle(phba);
975 spin_unlock_irq(phba->host->host_lock);
976 return -EPERM;
977 }
978
979 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
980 (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
981
982 spin_unlock_irq(phba->host->host_lock);
983 rc = lpfc_sli_issue_mbox (phba,
984 phba->sysfs_mbox.mbox,
985 MBX_POLL);
986 spin_lock_irq(phba->host->host_lock);
987
988 } else {
989 spin_unlock_irq(phba->host->host_lock);
990 rc = lpfc_sli_issue_mbox_wait (phba,
991 phba->sysfs_mbox.mbox,
992 phba->fc_ratov * 2);
993 spin_lock_irq(phba->host->host_lock);
994 }
995
996 if (rc != MBX_SUCCESS) {
997 sysfs_mbox_idle(phba);
998 spin_unlock_irq(host->host_lock);
999 return -ENODEV;
1000 }
1001 phba->sysfs_mbox.state = SMBOX_READING;
1002 }
1003 else if (phba->sysfs_mbox.offset != off ||
1004 phba->sysfs_mbox.state != SMBOX_READING) {
1005 printk(KERN_WARNING "mbox_read: Bad State\n");
1006 sysfs_mbox_idle(phba);
1007 spin_unlock_irq(host->host_lock);
1008 return -EINVAL;
1009 }
1010
1011 memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1012
1013 phba->sysfs_mbox.offset = off + count;
1014
1015 if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
1016 sysfs_mbox_idle(phba);
1017
1018 spin_unlock_irq(phba->host->host_lock);
1019
1020 return count;
1021 }
1022
1023 static struct bin_attribute sysfs_mbox_attr = {
1024 .attr = {
1025 .name = "mbox",
1026 .mode = S_IRUSR | S_IWUSR,
1027 .owner = THIS_MODULE,
1028 },
1029 .size = sizeof(MAILBOX_t),
1030 .read = sysfs_mbox_read,
1031 .write = sysfs_mbox_write,
1032 };
1033
1034 int
1035 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1036 {
1037 struct Scsi_Host *host = phba->host;
1038 int error;
1039
1040 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1041 &sysfs_ctlreg_attr);
1042 if (error)
1043 goto out;
1044
1045 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1046 &sysfs_mbox_attr);
1047 if (error)
1048 goto out_remove_ctlreg_attr;
1049
1050 return 0;
1051 out_remove_ctlreg_attr:
1052 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1053 out:
1054 return error;
1055 }
1056
1057 void
1058 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1059 {
1060 struct Scsi_Host *host = phba->host;
1061
1062 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1063 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1064 }
1065
1066
1067 /*
1068 * Dynamic FC Host Attributes Support
1069 */
1070
1071 static void
1072 lpfc_get_host_port_id(struct Scsi_Host *shost)
1073 {
1074 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1075 /* note: fc_myDID already in cpu endianness */
1076 fc_host_port_id(shost) = phba->fc_myDID;
1077 }
1078
1079 static void
1080 lpfc_get_host_port_type(struct Scsi_Host *shost)
1081 {
1082 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1083
1084 spin_lock_irq(shost->host_lock);
1085
1086 if (phba->hba_state == LPFC_HBA_READY) {
1087 if (phba->fc_topology == TOPOLOGY_LOOP) {
1088 if (phba->fc_flag & FC_PUBLIC_LOOP)
1089 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1090 else
1091 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1092 } else {
1093 if (phba->fc_flag & FC_FABRIC)
1094 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1095 else
1096 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1097 }
1098 } else
1099 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1100
1101 spin_unlock_irq(shost->host_lock);
1102 }
1103
1104 static void
1105 lpfc_get_host_port_state(struct Scsi_Host *shost)
1106 {
1107 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1108
1109 spin_lock_irq(shost->host_lock);
1110
1111 if (phba->fc_flag & FC_OFFLINE_MODE)
1112 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1113 else {
1114 switch (phba->hba_state) {
1115 case LPFC_STATE_UNKNOWN:
1116 case LPFC_WARM_START:
1117 case LPFC_INIT_START:
1118 case LPFC_INIT_MBX_CMDS:
1119 case LPFC_LINK_DOWN:
1120 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1121 break;
1122 case LPFC_LINK_UP:
1123 case LPFC_LOCAL_CFG_LINK:
1124 case LPFC_FLOGI:
1125 case LPFC_FABRIC_CFG_LINK:
1126 case LPFC_NS_REG:
1127 case LPFC_NS_QRY:
1128 case LPFC_BUILD_DISC_LIST:
1129 case LPFC_DISC_AUTH:
1130 case LPFC_CLEAR_LA:
1131 case LPFC_HBA_READY:
1132 /* Links up, beyond this port_type reports state */
1133 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1134 break;
1135 case LPFC_HBA_ERROR:
1136 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1137 break;
1138 default:
1139 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1140 break;
1141 }
1142 }
1143
1144 spin_unlock_irq(shost->host_lock);
1145 }
1146
1147 static void
1148 lpfc_get_host_speed(struct Scsi_Host *shost)
1149 {
1150 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1151
1152 spin_lock_irq(shost->host_lock);
1153
1154 if (phba->hba_state == LPFC_HBA_READY) {
1155 switch(phba->fc_linkspeed) {
1156 case LA_1GHZ_LINK:
1157 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1158 break;
1159 case LA_2GHZ_LINK:
1160 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1161 break;
1162 case LA_4GHZ_LINK:
1163 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1164 break;
1165 default:
1166 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1167 break;
1168 }
1169 }
1170
1171 spin_unlock_irq(shost->host_lock);
1172 }
1173
1174 static void
1175 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1176 {
1177 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1178 u64 node_name;
1179
1180 spin_lock_irq(shost->host_lock);
1181
1182 if ((phba->fc_flag & FC_FABRIC) ||
1183 ((phba->fc_topology == TOPOLOGY_LOOP) &&
1184 (phba->fc_flag & FC_PUBLIC_LOOP)))
1185 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1186 else
1187 /* fabric is local port if there is no F/FL_Port */
1188 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1189
1190 spin_unlock_irq(shost->host_lock);
1191
1192 fc_host_fabric_name(shost) = node_name;
1193 }
1194
1195
1196 static struct fc_host_statistics *
1197 lpfc_get_stats(struct Scsi_Host *shost)
1198 {
1199 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1200 struct lpfc_sli *psli = &phba->sli;
1201 struct fc_host_statistics *hs = &phba->link_stats;
1202 LPFC_MBOXQ_t *pmboxq;
1203 MAILBOX_t *pmb;
1204 int rc = 0;
1205
1206 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1207 if (!pmboxq)
1208 return NULL;
1209 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1210
1211 pmb = &pmboxq->mb;
1212 pmb->mbxCommand = MBX_READ_STATUS;
1213 pmb->mbxOwner = OWN_HOST;
1214 pmboxq->context1 = NULL;
1215
1216 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1217 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1218 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1219 else
1220 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1221
1222 if (rc != MBX_SUCCESS) {
1223 if (rc == MBX_TIMEOUT)
1224 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1225 else
1226 mempool_free(pmboxq, phba->mbox_mem_pool);
1227 return NULL;
1228 }
1229
1230 memset(hs, 0, sizeof (struct fc_host_statistics));
1231
1232 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1233 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1234 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1235 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1236
1237 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1238 pmb->mbxCommand = MBX_READ_LNK_STAT;
1239 pmb->mbxOwner = OWN_HOST;
1240 pmboxq->context1 = NULL;
1241
1242 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1243 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1244 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1245 else
1246 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1247
1248 if (rc != MBX_SUCCESS) {
1249 if (rc == MBX_TIMEOUT)
1250 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1251 else
1252 mempool_free( pmboxq, phba->mbox_mem_pool);
1253 return NULL;
1254 }
1255
1256 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1257 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1258 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1259 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1260 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1261 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1262 hs->error_frames = pmb->un.varRdLnk.crcCnt;
1263
1264 if (phba->fc_topology == TOPOLOGY_LOOP) {
1265 hs->lip_count = (phba->fc_eventTag >> 1);
1266 hs->nos_count = -1;
1267 } else {
1268 hs->lip_count = -1;
1269 hs->nos_count = (phba->fc_eventTag >> 1);
1270 }
1271
1272 hs->dumped_frames = -1;
1273
1274 /* FIX ME */
1275 /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1276
1277 return hs;
1278 }
1279
1280
1281 /*
1282 * The LPFC driver treats linkdown handling as target loss events so there
1283 * are no sysfs handlers for link_down_tmo.
1284 */
1285 static void
1286 lpfc_get_starget_port_id(struct scsi_target *starget)
1287 {
1288 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1289 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1290 uint32_t did = -1;
1291 struct lpfc_nodelist *ndlp = NULL;
1292
1293 spin_lock_irq(shost->host_lock);
1294 /* Search the mapped list for this target ID */
1295 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1296 if (starget->id == ndlp->nlp_sid) {
1297 did = ndlp->nlp_DID;
1298 break;
1299 }
1300 }
1301 spin_unlock_irq(shost->host_lock);
1302
1303 fc_starget_port_id(starget) = did;
1304 }
1305
1306 static void
1307 lpfc_get_starget_node_name(struct scsi_target *starget)
1308 {
1309 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1310 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1311 u64 node_name = 0;
1312 struct lpfc_nodelist *ndlp = NULL;
1313
1314 spin_lock_irq(shost->host_lock);
1315 /* Search the mapped list for this target ID */
1316 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1317 if (starget->id == ndlp->nlp_sid) {
1318 node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1319 break;
1320 }
1321 }
1322 spin_unlock_irq(shost->host_lock);
1323
1324 fc_starget_node_name(starget) = node_name;
1325 }
1326
1327 static void
1328 lpfc_get_starget_port_name(struct scsi_target *starget)
1329 {
1330 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1331 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1332 u64 port_name = 0;
1333 struct lpfc_nodelist *ndlp = NULL;
1334
1335 spin_lock_irq(shost->host_lock);
1336 /* Search the mapped list for this target ID */
1337 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1338 if (starget->id == ndlp->nlp_sid) {
1339 port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1340 break;
1341 }
1342 }
1343 spin_unlock_irq(shost->host_lock);
1344
1345 fc_starget_port_name(starget) = port_name;
1346 }
1347
1348 static void
1349 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1350 {
1351 /*
1352 * Return the driver's global value for device loss timeout plus
1353 * five seconds to allow the driver's nodev timer to run.
1354 */
1355 rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1356 }
1357
1358 static void
1359 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1360 {
1361 /*
1362 * The driver doesn't have a per-target timeout setting. Set
1363 * this value globally. lpfc_nodev_tmo should be greater then 0.
1364 */
1365 if (timeout)
1366 lpfc_nodev_tmo = timeout;
1367 else
1368 lpfc_nodev_tmo = 1;
1369 rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1370 }
1371
1372
1373 #define lpfc_rport_show_function(field, format_string, sz, cast) \
1374 static ssize_t \
1375 lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
1376 { \
1377 struct fc_rport *rport = transport_class_to_rport(cdev); \
1378 struct lpfc_rport_data *rdata = rport->hostdata; \
1379 return snprintf(buf, sz, format_string, \
1380 (rdata->target) ? cast rdata->target->field : 0); \
1381 }
1382
1383 #define lpfc_rport_rd_attr(field, format_string, sz) \
1384 lpfc_rport_show_function(field, format_string, sz, ) \
1385 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1386
1387
1388 struct fc_function_template lpfc_transport_functions = {
1389 /* fixed attributes the driver supports */
1390 .show_host_node_name = 1,
1391 .show_host_port_name = 1,
1392 .show_host_supported_classes = 1,
1393 .show_host_supported_fc4s = 1,
1394 .show_host_symbolic_name = 1,
1395 .show_host_supported_speeds = 1,
1396 .show_host_maxframe_size = 1,
1397
1398 /* dynamic attributes the driver supports */
1399 .get_host_port_id = lpfc_get_host_port_id,
1400 .show_host_port_id = 1,
1401
1402 .get_host_port_type = lpfc_get_host_port_type,
1403 .show_host_port_type = 1,
1404
1405 .get_host_port_state = lpfc_get_host_port_state,
1406 .show_host_port_state = 1,
1407
1408 /* active_fc4s is shown but doesn't change (thus no get function) */
1409 .show_host_active_fc4s = 1,
1410
1411 .get_host_speed = lpfc_get_host_speed,
1412 .show_host_speed = 1,
1413
1414 .get_host_fabric_name = lpfc_get_host_fabric_name,
1415 .show_host_fabric_name = 1,
1416
1417 /*
1418 * The LPFC driver treats linkdown handling as target loss events
1419 * so there are no sysfs handlers for link_down_tmo.
1420 */
1421
1422 .get_fc_host_stats = lpfc_get_stats,
1423
1424 /* the LPFC driver doesn't support resetting stats yet */
1425
1426 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1427 .show_rport_maxframe_size = 1,
1428 .show_rport_supported_classes = 1,
1429
1430 .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1431 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1432 .show_rport_dev_loss_tmo = 1,
1433
1434 .get_starget_port_id = lpfc_get_starget_port_id,
1435 .show_starget_port_id = 1,
1436
1437 .get_starget_node_name = lpfc_get_starget_node_name,
1438 .show_starget_node_name = 1,
1439
1440 .get_starget_port_name = lpfc_get_starget_port_name,
1441 .show_starget_port_name = 1,
1442
1443 .issue_fc_host_lip = lpfc_issue_lip,
1444 };
1445
1446 void
1447 lpfc_get_cfgparam(struct lpfc_hba *phba)
1448 {
1449 lpfc_log_verbose_init(phba, lpfc_log_verbose);
1450 lpfc_cr_delay_init(phba, lpfc_cr_delay);
1451 lpfc_cr_count_init(phba, lpfc_cr_count);
1452 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1453 lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1454 lpfc_fcp_class_init(phba, lpfc_fcp_class);
1455 lpfc_use_adisc_init(phba, lpfc_use_adisc);
1456 lpfc_ack0_init(phba, lpfc_ack0);
1457 lpfc_topology_init(phba, lpfc_topology);
1458 lpfc_scan_down_init(phba, lpfc_scan_down);
1459 lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1460 lpfc_link_speed_init(phba, lpfc_link_speed);
1461 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1462 lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1463 lpfc_max_luns_init(phba, lpfc_max_luns);
1464 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1465
1466 phba->cfg_poll = lpfc_poll;
1467
1468 /*
1469 * The total number of segments is the configuration value plus 2
1470 * since the IOCB need a command and response bde.
1471 */
1472 phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1473
1474 /*
1475 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1476 * used to create the sg_dma_buf_pool must be dynamically calculated
1477 */
1478 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1479 sizeof(struct fcp_rsp) +
1480 (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1481
1482 switch (phba->pcidev->device) {
1483 case PCI_DEVICE_ID_LP101:
1484 case PCI_DEVICE_ID_BSMB:
1485 case PCI_DEVICE_ID_ZSMB:
1486 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1487 break;
1488 case PCI_DEVICE_ID_RFLY:
1489 case PCI_DEVICE_ID_PFLY:
1490 case PCI_DEVICE_ID_BMID:
1491 case PCI_DEVICE_ID_ZMID:
1492 case PCI_DEVICE_ID_TFLY:
1493 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1494 break;
1495 default:
1496 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1497 }
1498
1499 if (phba->cfg_hba_queue_depth > lpfc_hba_queue_depth)
1500 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
1501
1502 return;
1503 }
Linux with added FPC-III support