Merge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
[linux-2.6] / drivers / scsi / lpfc / lpfc_attr.c
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2004-2005 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[0];
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[0];
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[0];
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[0];
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[0];
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[0];
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[0];
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[0];
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[0];
150         int len = 0;
151         switch (phba->hba_state) {
152         case LPFC_INIT_START:
153         case LPFC_INIT_MBX_CMDS:
154         case LPFC_LINK_DOWN:
155                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
156                 break;
157         case LPFC_LINK_UP:
158         case LPFC_LOCAL_CFG_LINK:
159                 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
160                 break;
161         case LPFC_FLOGI:
162         case LPFC_FABRIC_CFG_LINK:
163         case LPFC_NS_REG:
164         case LPFC_NS_QRY:
165         case LPFC_BUILD_DISC_LIST:
166         case LPFC_DISC_AUTH:
167         case LPFC_CLEAR_LA:
168                 len += snprintf(buf + len, PAGE_SIZE-len,
169                                 "Link Up - Discovery\n");
170                 break;
171         case LPFC_HBA_READY:
172                 len += snprintf(buf + len, PAGE_SIZE-len,
173                                 "Link Up - Ready:\n");
174                 if (phba->fc_topology == TOPOLOGY_LOOP) {
175                         if (phba->fc_flag & FC_PUBLIC_LOOP)
176                                 len += snprintf(buf + len, PAGE_SIZE-len,
177                                                 "   Public Loop\n");
178                         else
179                                 len += snprintf(buf + len, PAGE_SIZE-len,
180                                                 "   Private Loop\n");
181                 } else {
182                         if (phba->fc_flag & FC_FABRIC)
183                                 len += snprintf(buf + len, PAGE_SIZE-len,
184                                                 "   Fabric\n");
185                         else
186                                 len += snprintf(buf + len, PAGE_SIZE-len,
187                                                 "   Point-2-Point\n");
188                 }
189         }
190         return len;
191 }
192
193 static ssize_t
194 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
195 {
196         struct Scsi_Host *host = class_to_shost(cdev);
197         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
198         return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
199                                                         phba->fc_unmap_cnt);
200 }
201
202
203 static int
204 lpfc_issue_lip(struct Scsi_Host *host)
205 {
206         struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata[0];
207         LPFC_MBOXQ_t *pmboxq;
208         int mbxstatus = MBXERR_ERROR;
209
210         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
211             (phba->hba_state != LPFC_HBA_READY))
212                 return -EPERM;
213
214         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
215
216         if (!pmboxq)
217                 return -ENOMEM;
218
219         memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
220         lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
221         mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
222
223         if (mbxstatus == MBX_TIMEOUT)
224                 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
225         else
226                 mempool_free(pmboxq, phba->mbox_mem_pool);
227
228         if (mbxstatus == MBXERR_ERROR)
229                 return -EIO;
230
231         return 0;
232 }
233
234 static ssize_t
235 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
236 {
237         struct Scsi_Host *host = class_to_shost(cdev);
238         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
239         return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
240 }
241
242 static ssize_t
243 lpfc_board_online_show(struct class_device *cdev, char *buf)
244 {
245         struct Scsi_Host *host = class_to_shost(cdev);
246         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
247
248         if (phba->fc_flag & FC_OFFLINE_MODE)
249                 return snprintf(buf, PAGE_SIZE, "0\n");
250         else
251                 return snprintf(buf, PAGE_SIZE, "1\n");
252 }
253
254 static ssize_t
255 lpfc_board_online_store(struct class_device *cdev, const char *buf,
256                                                                 size_t count)
257 {
258         struct Scsi_Host *host = class_to_shost(cdev);
259         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
260         struct completion online_compl;
261         int val=0, status=0;
262
263         if (sscanf(buf, "%d", &val) != 1)
264                 return -EINVAL;
265
266         init_completion(&online_compl);
267
268         if (val)
269                 lpfc_workq_post_event(phba, &status, &online_compl,
270                                                         LPFC_EVT_ONLINE);
271         else
272                 lpfc_workq_post_event(phba, &status, &online_compl,
273                                                         LPFC_EVT_OFFLINE);
274         wait_for_completion(&online_compl);
275         if (!status)
276                 return strlen(buf);
277         else
278                 return -EIO;
279 }
280
281 static ssize_t
282 lpfc_poll_show(struct class_device *cdev, char *buf)
283 {
284         struct Scsi_Host *host = class_to_shost(cdev);
285         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
286
287         return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
288 }
289
290 static ssize_t
291 lpfc_poll_store(struct class_device *cdev, const char *buf,
292                 size_t count)
293 {
294         struct Scsi_Host *host = class_to_shost(cdev);
295         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
296         uint32_t creg_val;
297         uint32_t old_val;
298         int val=0;
299
300         if (!isdigit(buf[0]))
301                 return -EINVAL;
302
303         if (sscanf(buf, "%i", &val) != 1)
304                 return -EINVAL;
305
306         if ((val & 0x3) != val)
307                 return -EINVAL;
308
309         spin_lock_irq(phba->host->host_lock);
310
311         old_val = phba->cfg_poll;
312
313         if (val & ENABLE_FCP_RING_POLLING) {
314                 if ((val & DISABLE_FCP_RING_INT) &&
315                     !(old_val & DISABLE_FCP_RING_INT)) {
316                         creg_val = readl(phba->HCregaddr);
317                         creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
318                         writel(creg_val, phba->HCregaddr);
319                         readl(phba->HCregaddr); /* flush */
320
321                         lpfc_poll_start_timer(phba);
322                 }
323         } else if (val != 0x0) {
324                 spin_unlock_irq(phba->host->host_lock);
325                 return -EINVAL;
326         }
327
328         if (!(val & DISABLE_FCP_RING_INT) &&
329             (old_val & DISABLE_FCP_RING_INT))
330         {
331                 spin_unlock_irq(phba->host->host_lock);
332                 del_timer(&phba->fcp_poll_timer);
333                 spin_lock_irq(phba->host->host_lock);
334                 creg_val = readl(phba->HCregaddr);
335                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
336                 writel(creg_val, phba->HCregaddr);
337                 readl(phba->HCregaddr); /* flush */
338         }
339
340         phba->cfg_poll = val;
341
342         spin_unlock_irq(phba->host->host_lock);
343
344         return strlen(buf);
345 }
346
347 #define lpfc_param_show(attr)   \
348 static ssize_t \
349 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
350 { \
351         struct Scsi_Host *host = class_to_shost(cdev);\
352         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
353         int val = 0;\
354         val = phba->cfg_##attr;\
355         return snprintf(buf, PAGE_SIZE, "%d\n",\
356                         phba->cfg_##attr);\
357 }
358
359 #define lpfc_param_hex_show(attr)       \
360 static ssize_t \
361 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
362 { \
363         struct Scsi_Host *host = class_to_shost(cdev);\
364         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
365         int val = 0;\
366         val = phba->cfg_##attr;\
367         return snprintf(buf, PAGE_SIZE, "%#x\n",\
368                         phba->cfg_##attr);\
369 }
370
371 #define lpfc_param_init(attr, default, minval, maxval)  \
372 static int \
373 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
374 { \
375         if (val >= minval && val <= maxval) {\
376                 phba->cfg_##attr = val;\
377                 return 0;\
378         }\
379         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
380                         "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
381                         "allowed range is ["#minval", "#maxval"]\n", \
382                         phba->brd_no, val); \
383         phba->cfg_##attr = default;\
384         return -EINVAL;\
385 }
386
387 #define lpfc_param_set(attr, default, minval, maxval)   \
388 static int \
389 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
390 { \
391         if (val >= minval && val <= maxval) {\
392                 phba->cfg_##attr = val;\
393                 return 0;\
394         }\
395         lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
396                         "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
397                         "allowed range is ["#minval", "#maxval"]\n", \
398                         phba->brd_no, val); \
399         return -EINVAL;\
400 }
401
402 #define lpfc_param_store(attr)  \
403 static ssize_t \
404 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
405 { \
406         struct Scsi_Host *host = class_to_shost(cdev);\
407         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
408         int val=0;\
409         if (!isdigit(buf[0]))\
410                 return -EINVAL;\
411         if (sscanf(buf, "%i", &val) != 1)\
412                 return -EINVAL;\
413         if (lpfc_##attr##_set(phba, val) == 0) \
414                 return strlen(buf);\
415         else \
416                 return -EINVAL;\
417 }
418
419 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
420 static int lpfc_##name = defval;\
421 module_param(lpfc_##name, int, 0);\
422 MODULE_PARM_DESC(lpfc_##name, desc);\
423 lpfc_param_init(name, defval, minval, maxval)
424
425 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
426 static int lpfc_##name = defval;\
427 module_param(lpfc_##name, int, 0);\
428 MODULE_PARM_DESC(lpfc_##name, desc);\
429 lpfc_param_show(name)\
430 lpfc_param_init(name, defval, minval, maxval)\
431 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
432
433 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
434 static int lpfc_##name = defval;\
435 module_param(lpfc_##name, int, 0);\
436 MODULE_PARM_DESC(lpfc_##name, desc);\
437 lpfc_param_show(name)\
438 lpfc_param_init(name, defval, minval, maxval)\
439 lpfc_param_set(name, defval, minval, maxval)\
440 lpfc_param_store(name)\
441 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
442                          lpfc_##name##_show, lpfc_##name##_store)
443
444 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
445 static int lpfc_##name = defval;\
446 module_param(lpfc_##name, int, 0);\
447 MODULE_PARM_DESC(lpfc_##name, desc);\
448 lpfc_param_hex_show(name)\
449 lpfc_param_init(name, defval, minval, maxval)\
450 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
451
452 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
453 static int lpfc_##name = defval;\
454 module_param(lpfc_##name, int, 0);\
455 MODULE_PARM_DESC(lpfc_##name, desc);\
456 lpfc_param_hex_show(name)\
457 lpfc_param_init(name, defval, minval, maxval)\
458 lpfc_param_set(name, defval, minval, maxval)\
459 lpfc_param_store(name)\
460 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
461                          lpfc_##name##_show, lpfc_##name##_store)
462
463 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
464 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
465 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
466 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
467 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
468 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
469 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
470 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
471 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
472 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
473                                         lpfc_option_rom_version_show, NULL);
474 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
475                                         lpfc_num_discovered_ports_show, NULL);
476 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
477 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
478                          NULL);
479 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
480                          NULL);
481 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
482                          lpfc_board_online_show, lpfc_board_online_store);
483
484 static int lpfc_poll = 0;
485 module_param(lpfc_poll, int, 0);
486 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
487                  " 0 - none,"
488                  " 1 - poll with interrupts enabled"
489                  " 3 - poll and disable FCP ring interrupts");
490
491 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
492                          lpfc_poll_show, lpfc_poll_store);
493
494 /*
495 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
496 # deluged with LOTS of information.
497 # You can set a bit mask to record specific types of verbose messages:
498 #
499 # LOG_ELS                       0x1        ELS events
500 # LOG_DISCOVERY                 0x2        Link discovery events
501 # LOG_MBOX                      0x4        Mailbox events
502 # LOG_INIT                      0x8        Initialization events
503 # LOG_LINK_EVENT                0x10       Link events
504 # LOG_IP                        0x20       IP traffic history
505 # LOG_FCP                       0x40       FCP traffic history
506 # LOG_NODE                      0x80       Node table events
507 # LOG_MISC                      0x400      Miscellaneous events
508 # LOG_SLI                       0x800      SLI events
509 # LOG_CHK_COND                  0x1000     FCP Check condition flag
510 # LOG_LIBDFC                    0x2000     LIBDFC events
511 # LOG_ALL_MSG                   0xffff     LOG all messages
512 */
513 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
514
515 /*
516 # lun_queue_depth:  This parameter is used to limit the number of outstanding
517 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
518 */
519 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
520             "Max number of FCP commands we can queue to a specific LUN");
521
522 /*
523 # Some disk devices have a "select ID" or "select Target" capability.
524 # From a protocol standpoint "select ID" usually means select the
525 # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
526 # annex" which contains a table that maps a "select ID" (a number
527 # between 0 and 7F) to an ALPA.  By default, for compatibility with
528 # older drivers, the lpfc driver scans this table from low ALPA to high
529 # ALPA.
530 #
531 # Turning on the scan-down variable (on  = 1, off = 0) will
532 # cause the lpfc driver to use an inverted table, effectively
533 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
534 #
535 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
536 # and will not work across a fabric. Also this parameter will take
537 # effect only in the case when ALPA map is not available.)
538 */
539 LPFC_ATTR_R(scan_down, 1, 0, 1,
540              "Start scanning for devices from highest ALPA to lowest");
541
542 /*
543 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
544 # until the timer expires. Value range is [0,255]. Default value is 30.
545 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
546 */
547 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
548              "Seconds driver will hold I/O waiting for a device to come back");
549
550 /*
551 # lpfc_topology:  link topology for init link
552 #            0x0  = attempt loop mode then point-to-point
553 #            0x02 = attempt point-to-point mode only
554 #            0x04 = attempt loop mode only
555 #            0x06 = attempt point-to-point mode then loop
556 # Set point-to-point mode if you want to run as an N_Port.
557 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
558 # Default value is 0.
559 */
560 LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");
561
562 /*
563 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
564 # connection.
565 #       0  = auto select (default)
566 #       1  = 1 Gigabaud
567 #       2  = 2 Gigabaud
568 #       4  = 4 Gigabaud
569 # Value range is [0,4]. Default value is 0.
570 */
571 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
572
573 /*
574 # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
575 # Value range is [2,3]. Default value is 3.
576 */
577 LPFC_ATTR_R(fcp_class, 3, 2, 3,
578              "Select Fibre Channel class of service for FCP sequences");
579
580 /*
581 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
582 # is [0,1]. Default value is 0.
583 */
584 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
585              "Use ADISC on rediscovery to authenticate FCP devices");
586
587 /*
588 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
589 # range is [0,1]. Default value is 0.
590 */
591 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
592
593 /*
594 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
595 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
596 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
597 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
598 # cr_delay is set to 0.
599 */
600 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
601                 "interrupt response is generated");
602
603 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an"
604                 "interrupt response is generated");
605
606 /*
607 # lpfc_fdmi_on: controls FDMI support.
608 #       0 = no FDMI support
609 #       1 = support FDMI without attribute of hostname
610 #       2 = support FDMI with attribute of hostname
611 # Value range [0,2]. Default value is 0.
612 */
613 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
614
615 /*
616 # Specifies the maximum number of ELS cmds we can have outstanding (for
617 # discovery). Value range is [1,64]. Default value = 32.
618 */
619 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands"
620                  "during discovery");
621
622 /*
623 # lpfc_max_luns: maximum number of LUNs per target driver will support
624 # Value range is [1,32768]. Default value is 256.
625 # NOTE: The SCSI layer will scan each target for this many luns
626 */
627 LPFC_ATTR_R(max_luns, 256, 1, 32768,
628              "Maximum number of LUNs per target driver will support");
629
630 /*
631 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
632 # Value range is [1,255], default value is 10.
633 */
634 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
635              "Milliseconds driver will wait between polling FCP ring");
636
637 struct class_device_attribute *lpfc_host_attrs[] = {
638         &class_device_attr_info,
639         &class_device_attr_serialnum,
640         &class_device_attr_modeldesc,
641         &class_device_attr_modelname,
642         &class_device_attr_programtype,
643         &class_device_attr_portnum,
644         &class_device_attr_fwrev,
645         &class_device_attr_hdw,
646         &class_device_attr_option_rom_version,
647         &class_device_attr_state,
648         &class_device_attr_num_discovered_ports,
649         &class_device_attr_lpfc_drvr_version,
650         &class_device_attr_lpfc_log_verbose,
651         &class_device_attr_lpfc_lun_queue_depth,
652         &class_device_attr_lpfc_nodev_tmo,
653         &class_device_attr_lpfc_fcp_class,
654         &class_device_attr_lpfc_use_adisc,
655         &class_device_attr_lpfc_ack0,
656         &class_device_attr_lpfc_topology,
657         &class_device_attr_lpfc_scan_down,
658         &class_device_attr_lpfc_link_speed,
659         &class_device_attr_lpfc_cr_delay,
660         &class_device_attr_lpfc_cr_count,
661         &class_device_attr_lpfc_fdmi_on,
662         &class_device_attr_lpfc_max_luns,
663         &class_device_attr_nport_evt_cnt,
664         &class_device_attr_management_version,
665         &class_device_attr_board_online,
666         &class_device_attr_lpfc_poll,
667         &class_device_attr_lpfc_poll_tmo,
668         NULL,
669 };
670
671 static ssize_t
672 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
673 {
674         size_t buf_off;
675         struct Scsi_Host *host = class_to_shost(container_of(kobj,
676                                              struct class_device, kobj));
677         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
678
679         if ((off + count) > FF_REG_AREA_SIZE)
680                 return -ERANGE;
681
682         if (count == 0) return 0;
683
684         if (off % 4 || count % 4 || (unsigned long)buf % 4)
685                 return -EINVAL;
686
687         spin_lock_irq(phba->host->host_lock);
688
689         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
690                 spin_unlock_irq(phba->host->host_lock);
691                 return -EPERM;
692         }
693
694         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
695                 writel(*((uint32_t *)(buf + buf_off)),
696                        phba->ctrl_regs_memmap_p + off + buf_off);
697
698         spin_unlock_irq(phba->host->host_lock);
699
700         return count;
701 }
702
703 static ssize_t
704 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
705 {
706         size_t buf_off;
707         uint32_t * tmp_ptr;
708         struct Scsi_Host *host = class_to_shost(container_of(kobj,
709                                              struct class_device, kobj));
710         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
711
712         if (off > FF_REG_AREA_SIZE)
713                 return -ERANGE;
714
715         if ((off + count) > FF_REG_AREA_SIZE)
716                 count = FF_REG_AREA_SIZE - off;
717
718         if (count == 0) return 0;
719
720         if (off % 4 || count % 4 || (unsigned long)buf % 4)
721                 return -EINVAL;
722
723         spin_lock_irq(phba->host->host_lock);
724
725         for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
726                 tmp_ptr = (uint32_t *)(buf + buf_off);
727                 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
728         }
729
730         spin_unlock_irq(phba->host->host_lock);
731
732         return count;
733 }
734
735 static struct bin_attribute sysfs_ctlreg_attr = {
736         .attr = {
737                 .name = "ctlreg",
738                 .mode = S_IRUSR | S_IWUSR,
739                 .owner = THIS_MODULE,
740         },
741         .size = 256,
742         .read = sysfs_ctlreg_read,
743         .write = sysfs_ctlreg_write,
744 };
745
746
747 static void
748 sysfs_mbox_idle (struct lpfc_hba * phba)
749 {
750         phba->sysfs_mbox.state = SMBOX_IDLE;
751         phba->sysfs_mbox.offset = 0;
752
753         if (phba->sysfs_mbox.mbox) {
754                 mempool_free(phba->sysfs_mbox.mbox,
755                              phba->mbox_mem_pool);
756                 phba->sysfs_mbox.mbox = NULL;
757         }
758 }
759
760 static ssize_t
761 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
762 {
763         struct Scsi_Host * host =
764                 class_to_shost(container_of(kobj, struct class_device, kobj));
765         struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0];
766         struct lpfcMboxq * mbox = NULL;
767
768         if ((count + off) > MAILBOX_CMD_SIZE)
769                 return -ERANGE;
770
771         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
772                 return -EINVAL;
773
774         if (count == 0)
775                 return 0;
776
777         if (off == 0) {
778                 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
779                 if (!mbox)
780                         return -ENOMEM;
781
782         }
783
784         spin_lock_irq(host->host_lock);
785
786         if (off == 0) {
787                 if (phba->sysfs_mbox.mbox)
788                         mempool_free(mbox, phba->mbox_mem_pool);
789                 else
790                         phba->sysfs_mbox.mbox = mbox;
791                 phba->sysfs_mbox.state = SMBOX_WRITING;
792         } else {
793                 if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
794                     phba->sysfs_mbox.offset != off           ||
795                     phba->sysfs_mbox.mbox   == NULL ) {
796                         sysfs_mbox_idle(phba);
797                         spin_unlock_irq(host->host_lock);
798                         return -EINVAL;
799                 }
800         }
801
802         memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
803                buf, count);
804
805         phba->sysfs_mbox.offset = off + count;
806
807         spin_unlock_irq(host->host_lock);
808
809         return count;
810 }
811
812 static ssize_t
813 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
814 {
815         struct Scsi_Host *host =
816                 class_to_shost(container_of(kobj, struct class_device,
817                                             kobj));
818         struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
819         int rc;
820
821         if (off > sizeof(MAILBOX_t))
822                 return -ERANGE;
823
824         if ((count + off) > sizeof(MAILBOX_t))
825                 count = sizeof(MAILBOX_t) - off;
826
827         if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
828                 return -EINVAL;
829
830         if (off && count == 0)
831                 return 0;
832
833         spin_lock_irq(phba->host->host_lock);
834
835         if (off == 0 &&
836             phba->sysfs_mbox.state  == SMBOX_WRITING &&
837             phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
838
839                 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
840                         /* Offline only */
841                 case MBX_WRITE_NV:
842                 case MBX_INIT_LINK:
843                 case MBX_DOWN_LINK:
844                 case MBX_CONFIG_LINK:
845                 case MBX_CONFIG_RING:
846                 case MBX_RESET_RING:
847                 case MBX_UNREG_LOGIN:
848                 case MBX_CLEAR_LA:
849                 case MBX_DUMP_CONTEXT:
850                 case MBX_RUN_DIAGS:
851                 case MBX_RESTART:
852                 case MBX_FLASH_WR_ULA:
853                 case MBX_SET_MASK:
854                 case MBX_SET_SLIM:
855                 case MBX_SET_DEBUG:
856                         if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
857                                 printk(KERN_WARNING "mbox_read:Command 0x%x "
858                                        "is illegal in on-line state\n",
859                                        phba->sysfs_mbox.mbox->mb.mbxCommand);
860                                 sysfs_mbox_idle(phba);
861                                 spin_unlock_irq(phba->host->host_lock);
862                                 return -EPERM;
863                         }
864                 case MBX_LOAD_SM:
865                 case MBX_READ_NV:
866                 case MBX_READ_CONFIG:
867                 case MBX_READ_RCONFIG:
868                 case MBX_READ_STATUS:
869                 case MBX_READ_XRI:
870                 case MBX_READ_REV:
871                 case MBX_READ_LNK_STAT:
872                 case MBX_DUMP_MEMORY:
873                 case MBX_DOWN_LOAD:
874                 case MBX_UPDATE_CFG:
875                 case MBX_LOAD_AREA:
876                 case MBX_LOAD_EXP_ROM:
877                         break;
878                 case MBX_READ_SPARM64:
879                 case MBX_READ_LA:
880                 case MBX_READ_LA64:
881                 case MBX_REG_LOGIN:
882                 case MBX_REG_LOGIN64:
883                 case MBX_CONFIG_PORT:
884                 case MBX_RUN_BIU_DIAG:
885                         printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
886                                phba->sysfs_mbox.mbox->mb.mbxCommand);
887                         sysfs_mbox_idle(phba);
888                         spin_unlock_irq(phba->host->host_lock);
889                         return -EPERM;
890                 default:
891                         printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
892                                phba->sysfs_mbox.mbox->mb.mbxCommand);
893                         sysfs_mbox_idle(phba);
894                         spin_unlock_irq(phba->host->host_lock);
895                         return -EPERM;
896                 }
897
898                 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
899                     (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
900
901                         spin_unlock_irq(phba->host->host_lock);
902                         rc = lpfc_sli_issue_mbox (phba,
903                                                   phba->sysfs_mbox.mbox,
904                                                   MBX_POLL);
905                         spin_lock_irq(phba->host->host_lock);
906
907                 } else {
908                         spin_unlock_irq(phba->host->host_lock);
909                         rc = lpfc_sli_issue_mbox_wait (phba,
910                                                        phba->sysfs_mbox.mbox,
911                                                        phba->fc_ratov * 2);
912                         spin_lock_irq(phba->host->host_lock);
913                 }
914
915                 if (rc != MBX_SUCCESS) {
916                         sysfs_mbox_idle(phba);
917                         spin_unlock_irq(host->host_lock);
918                         return -ENODEV;
919                 }
920                 phba->sysfs_mbox.state = SMBOX_READING;
921         }
922         else if (phba->sysfs_mbox.offset != off ||
923                  phba->sysfs_mbox.state  != SMBOX_READING) {
924                 printk(KERN_WARNING  "mbox_read: Bad State\n");
925                 sysfs_mbox_idle(phba);
926                 spin_unlock_irq(host->host_lock);
927                 return -EINVAL;
928         }
929
930         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
931
932         phba->sysfs_mbox.offset = off + count;
933
934         if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
935                 sysfs_mbox_idle(phba);
936
937         spin_unlock_irq(phba->host->host_lock);
938
939         return count;
940 }
941
942 static struct bin_attribute sysfs_mbox_attr = {
943         .attr = {
944                 .name = "mbox",
945                 .mode = S_IRUSR | S_IWUSR,
946                 .owner = THIS_MODULE,
947         },
948         .size = sizeof(MAILBOX_t),
949         .read = sysfs_mbox_read,
950         .write = sysfs_mbox_write,
951 };
952
953 int
954 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
955 {
956         struct Scsi_Host *host = phba->host;
957         int error;
958
959         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
960                                                         &sysfs_ctlreg_attr);
961         if (error)
962                 goto out;
963
964         error = sysfs_create_bin_file(&host->shost_classdev.kobj,
965                                                         &sysfs_mbox_attr);
966         if (error)
967                 goto out_remove_ctlreg_attr;
968
969         return 0;
970 out_remove_ctlreg_attr:
971         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
972 out:
973         return error;
974 }
975
976 void
977 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
978 {
979         struct Scsi_Host *host = phba->host;
980
981         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
982         sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
983 }
984
985
986 /*
987  * Dynamic FC Host Attributes Support
988  */
989
990 static void
991 lpfc_get_host_port_id(struct Scsi_Host *shost)
992 {
993         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
994         /* note: fc_myDID already in cpu endianness */
995         fc_host_port_id(shost) = phba->fc_myDID;
996 }
997
998 static void
999 lpfc_get_host_port_type(struct Scsi_Host *shost)
1000 {
1001         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
1002
1003         spin_lock_irq(shost->host_lock);
1004
1005         if (phba->hba_state == LPFC_HBA_READY) {
1006                 if (phba->fc_topology == TOPOLOGY_LOOP) {
1007                         if (phba->fc_flag & FC_PUBLIC_LOOP)
1008                                 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1009                         else
1010                                 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1011                 } else {
1012                         if (phba->fc_flag & FC_FABRIC)
1013                                 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1014                         else
1015                                 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1016                 }
1017         } else
1018                 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1019
1020         spin_unlock_irq(shost->host_lock);
1021 }
1022
1023 static void
1024 lpfc_get_host_port_state(struct Scsi_Host *shost)
1025 {
1026         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
1027
1028         spin_lock_irq(shost->host_lock);
1029
1030         if (phba->fc_flag & FC_OFFLINE_MODE)
1031                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1032         else {
1033                 switch (phba->hba_state) {
1034                 case LPFC_INIT_START:
1035                 case LPFC_INIT_MBX_CMDS:
1036                 case LPFC_LINK_DOWN:
1037                         fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1038                         break;
1039                 case LPFC_LINK_UP:
1040                 case LPFC_LOCAL_CFG_LINK:
1041                 case LPFC_FLOGI:
1042                 case LPFC_FABRIC_CFG_LINK:
1043                 case LPFC_NS_REG:
1044                 case LPFC_NS_QRY:
1045                 case LPFC_BUILD_DISC_LIST:
1046                 case LPFC_DISC_AUTH:
1047                 case LPFC_CLEAR_LA:
1048                 case LPFC_HBA_READY:
1049                         /* Links up, beyond this port_type reports state */
1050                         fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1051                         break;
1052                 case LPFC_HBA_ERROR:
1053                         fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1054                         break;
1055                 default:
1056                         fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1057                         break;
1058                 }
1059         }
1060
1061         spin_unlock_irq(shost->host_lock);
1062 }
1063
1064 static void
1065 lpfc_get_host_speed(struct Scsi_Host *shost)
1066 {
1067         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
1068
1069         spin_lock_irq(shost->host_lock);
1070
1071         if (phba->hba_state == LPFC_HBA_READY) {
1072                 switch(phba->fc_linkspeed) {
1073                         case LA_1GHZ_LINK:
1074                                 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1075                         break;
1076                         case LA_2GHZ_LINK:
1077                                 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1078                         break;
1079                         case LA_4GHZ_LINK:
1080                                 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1081                         break;
1082                         default:
1083                                 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1084                         break;
1085                 }
1086         }
1087
1088         spin_unlock_irq(shost->host_lock);
1089 }
1090
1091 static void
1092 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1093 {
1094         struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
1095         u64 node_name;
1096
1097         spin_lock_irq(shost->host_lock);
1098
1099         if ((phba->fc_flag & FC_FABRIC) ||
1100             ((phba->fc_topology == TOPOLOGY_LOOP) &&
1101              (phba->fc_flag & FC_PUBLIC_LOOP)))
1102                 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1103         else
1104                 /* fabric is local port if there is no F/FL_Port */
1105                 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1106
1107         spin_unlock_irq(shost->host_lock);
1108
1109         fc_host_fabric_name(shost) = node_name;
1110 }
1111
1112
1113 static struct fc_host_statistics *
1114 lpfc_get_stats(struct Scsi_Host *shost)
1115 {
1116         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
1117         struct lpfc_sli *psli = &phba->sli;
1118         struct fc_host_statistics *hs = &phba->link_stats;
1119         LPFC_MBOXQ_t *pmboxq;
1120         MAILBOX_t *pmb;
1121         int rc = 0;
1122
1123         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1124         if (!pmboxq)
1125                 return NULL;
1126         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1127
1128         pmb = &pmboxq->mb;
1129         pmb->mbxCommand = MBX_READ_STATUS;
1130         pmb->mbxOwner = OWN_HOST;
1131         pmboxq->context1 = NULL;
1132
1133         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1134                 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1135                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1136         else
1137                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1138
1139         if (rc != MBX_SUCCESS) {
1140                 if (rc == MBX_TIMEOUT)
1141                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1142                 else
1143                         mempool_free(pmboxq, phba->mbox_mem_pool);
1144                 return NULL;
1145         }
1146
1147         memset(hs, 0, sizeof (struct fc_host_statistics));
1148
1149         hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1150         hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1151         hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1152         hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1153
1154         memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1155         pmb->mbxCommand = MBX_READ_LNK_STAT;
1156         pmb->mbxOwner = OWN_HOST;
1157         pmboxq->context1 = NULL;
1158
1159         if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1160             (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1161                 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1162         else
1163                 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1164
1165         if (rc != MBX_SUCCESS) {
1166                 if (rc == MBX_TIMEOUT)
1167                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1168                 else
1169                         mempool_free( pmboxq, phba->mbox_mem_pool);
1170                 return NULL;
1171         }
1172
1173         hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1174         hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1175         hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1176         hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1177         hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1178         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1179         hs->error_frames = pmb->un.varRdLnk.crcCnt;
1180
1181         if (phba->fc_topology == TOPOLOGY_LOOP) {
1182                 hs->lip_count = (phba->fc_eventTag >> 1);
1183                 hs->nos_count = -1;
1184         } else {
1185                 hs->lip_count = -1;
1186                 hs->nos_count = (phba->fc_eventTag >> 1);
1187         }
1188
1189         hs->dumped_frames = -1;
1190
1191 /* FIX ME */
1192         /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1193
1194         return hs;
1195 }
1196
1197
1198 /*
1199  * The LPFC driver treats linkdown handling as target loss events so there
1200  * are no sysfs handlers for link_down_tmo.
1201  */
1202 static void
1203 lpfc_get_starget_port_id(struct scsi_target *starget)
1204 {
1205         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1206         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1207         uint32_t did = -1;
1208         struct lpfc_nodelist *ndlp = NULL;
1209
1210         spin_lock_irq(shost->host_lock);
1211         /* Search the mapped list for this target ID */
1212         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1213                 if (starget->id == ndlp->nlp_sid) {
1214                         did = ndlp->nlp_DID;
1215                         break;
1216                 }
1217         }
1218         spin_unlock_irq(shost->host_lock);
1219
1220         fc_starget_port_id(starget) = did;
1221 }
1222
1223 static void
1224 lpfc_get_starget_node_name(struct scsi_target *starget)
1225 {
1226         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1227         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1228         u64 node_name = 0;
1229         struct lpfc_nodelist *ndlp = NULL;
1230
1231         spin_lock_irq(shost->host_lock);
1232         /* Search the mapped list for this target ID */
1233         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1234                 if (starget->id == ndlp->nlp_sid) {
1235                         node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1236                         break;
1237                 }
1238         }
1239         spin_unlock_irq(shost->host_lock);
1240
1241         fc_starget_node_name(starget) = node_name;
1242 }
1243
1244 static void
1245 lpfc_get_starget_port_name(struct scsi_target *starget)
1246 {
1247         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1248         struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1249         u64 port_name = 0;
1250         struct lpfc_nodelist *ndlp = NULL;
1251
1252         spin_lock_irq(shost->host_lock);
1253         /* Search the mapped list for this target ID */
1254         list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1255                 if (starget->id == ndlp->nlp_sid) {
1256                         port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1257                         break;
1258                 }
1259         }
1260         spin_unlock_irq(shost->host_lock);
1261
1262         fc_starget_port_name(starget) = port_name;
1263 }
1264
1265 static void
1266 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1267 {
1268         /*
1269          * Return the driver's global value for device loss timeout plus
1270          * five seconds to allow the driver's nodev timer to run.
1271          */
1272         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1273 }
1274
1275 static void
1276 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1277 {
1278         /*
1279          * The driver doesn't have a per-target timeout setting.  Set
1280          * this value globally. lpfc_nodev_tmo should be greater then 0.
1281          */
1282         if (timeout)
1283                 lpfc_nodev_tmo = timeout;
1284         else
1285                 lpfc_nodev_tmo = 1;
1286         rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1287 }
1288
1289
1290 #define lpfc_rport_show_function(field, format_string, sz, cast)        \
1291 static ssize_t                                                          \
1292 lpfc_show_rport_##field (struct class_device *cdev, char *buf)          \
1293 {                                                                       \
1294         struct fc_rport *rport = transport_class_to_rport(cdev);        \
1295         struct lpfc_rport_data *rdata = rport->hostdata;                \
1296         return snprintf(buf, sz, format_string,                         \
1297                 (rdata->target) ? cast rdata->target->field : 0);       \
1298 }
1299
1300 #define lpfc_rport_rd_attr(field, format_string, sz)                    \
1301         lpfc_rport_show_function(field, format_string, sz, )            \
1302 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1303
1304
1305 struct fc_function_template lpfc_transport_functions = {
1306         /* fixed attributes the driver supports */
1307         .show_host_node_name = 1,
1308         .show_host_port_name = 1,
1309         .show_host_supported_classes = 1,
1310         .show_host_supported_fc4s = 1,
1311         .show_host_symbolic_name = 1,
1312         .show_host_supported_speeds = 1,
1313         .show_host_maxframe_size = 1,
1314
1315         /* dynamic attributes the driver supports */
1316         .get_host_port_id = lpfc_get_host_port_id,
1317         .show_host_port_id = 1,
1318
1319         .get_host_port_type = lpfc_get_host_port_type,
1320         .show_host_port_type = 1,
1321
1322         .get_host_port_state = lpfc_get_host_port_state,
1323         .show_host_port_state = 1,
1324
1325         /* active_fc4s is shown but doesn't change (thus no get function) */
1326         .show_host_active_fc4s = 1,
1327
1328         .get_host_speed = lpfc_get_host_speed,
1329         .show_host_speed = 1,
1330
1331         .get_host_fabric_name = lpfc_get_host_fabric_name,
1332         .show_host_fabric_name = 1,
1333
1334         /*
1335          * The LPFC driver treats linkdown handling as target loss events
1336          * so there are no sysfs handlers for link_down_tmo.
1337          */
1338
1339         .get_fc_host_stats = lpfc_get_stats,
1340
1341         /* the LPFC driver doesn't support resetting stats yet */
1342
1343         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1344         .show_rport_maxframe_size = 1,
1345         .show_rport_supported_classes = 1,
1346
1347         .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1348         .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1349         .show_rport_dev_loss_tmo = 1,
1350
1351         .get_starget_port_id  = lpfc_get_starget_port_id,
1352         .show_starget_port_id = 1,
1353
1354         .get_starget_node_name = lpfc_get_starget_node_name,
1355         .show_starget_node_name = 1,
1356
1357         .get_starget_port_name = lpfc_get_starget_port_name,
1358         .show_starget_port_name = 1,
1359
1360         .issue_fc_host_lip = lpfc_issue_lip,
1361 };
1362
1363 void
1364 lpfc_get_cfgparam(struct lpfc_hba *phba)
1365 {
1366         lpfc_log_verbose_init(phba, lpfc_log_verbose);
1367         lpfc_cr_delay_init(phba, lpfc_cr_delay);
1368         lpfc_cr_count_init(phba, lpfc_cr_count);
1369         lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1370         lpfc_fcp_class_init(phba, lpfc_fcp_class);
1371         lpfc_use_adisc_init(phba, lpfc_use_adisc);
1372         lpfc_ack0_init(phba, lpfc_ack0);
1373         lpfc_topology_init(phba, lpfc_topology);
1374         lpfc_scan_down_init(phba, lpfc_scan_down);
1375         lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1376         lpfc_link_speed_init(phba, lpfc_link_speed);
1377         lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1378         lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1379         lpfc_max_luns_init(phba, lpfc_max_luns);
1380         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1381
1382         phba->cfg_poll = lpfc_poll;
1383
1384         /*
1385          * The total number of segments is the configuration value plus 2
1386          * since the IOCB need a command and response bde.
1387          */
1388         phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1389
1390         /*
1391          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1392          * used to create the sg_dma_buf_pool must be dynamically calculated
1393          */
1394         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1395                         sizeof(struct fcp_rsp) +
1396                         (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1397
1398         switch (phba->pcidev->device) {
1399         case PCI_DEVICE_ID_LP101:
1400         case PCI_DEVICE_ID_BSMB:
1401         case PCI_DEVICE_ID_ZSMB:
1402                 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1403                 break;
1404         case PCI_DEVICE_ID_RFLY:
1405         case PCI_DEVICE_ID_PFLY:
1406         case PCI_DEVICE_ID_BMID:
1407         case PCI_DEVICE_ID_ZMID:
1408         case PCI_DEVICE_ID_TFLY:
1409                 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1410                 break;
1411         default:
1412                 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;
1413         }
1414         return;
1415 }