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lkdtm: Add Control Flow Integrity test
[linux/fpc-iii.git] / drivers / scsi / pm8001 / pm8001_ctl.c
blob6b85016b4db360e5eadce1ac53d3524948db31d2
1 /*
2 * PMC-Sierra 8001/8081/8088/8089 SAS/SATA based host adapters driver
3 *
4 * Copyright (c) 2008-2009 USI Co., Ltd.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * substantially similar to the "NO WARRANTY" disclaimer below
15 * ("Disclaimer") and any redistribution must be conditioned upon
16 * including a substantially similar Disclaimer requirement for further
17 * binary redistribution.
18 * 3. Neither the names of the above-listed copyright holders nor the names
19 * of any contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * Alternatively, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2 as published by the Free
24 * Software Foundation.
25 *
26 * NO WARRANTY
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGES.
38 *
39 */
40 #include <linux/firmware.h>
41 #include <linux/slab.h>
42 #include "pm8001_sas.h"
43 #include "pm8001_ctl.h"
44
45 /* scsi host attributes */
46
47 /**
48 * pm8001_ctl_mpi_interface_rev_show - MPI interface revision number
49 * @cdev: pointer to embedded class device
50 * @buf: the buffer returned
51 *
52 * A sysfs 'read-only' shost attribute.
53 */
54 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
55 struct device_attribute *attr, char *buf)
56 {
57 struct Scsi_Host *shost = class_to_shost(cdev);
58 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
59 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
60
61 if (pm8001_ha->chip_id == chip_8001) {
62 return snprintf(buf, PAGE_SIZE, "%d\n",
63 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
64 } else {
65 return snprintf(buf, PAGE_SIZE, "%d\n",
66 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
67 }
68 }
69 static
70 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
71
72 /**
73 * pm8001_ctl_fw_version_show - firmware version
74 * @cdev: pointer to embedded class device
75 * @buf: the buffer returned
76 *
77 * A sysfs 'read-only' shost attribute.
78 */
79 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
80 struct device_attribute *attr, char *buf)
81 {
82 struct Scsi_Host *shost = class_to_shost(cdev);
83 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
84 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
85
86 if (pm8001_ha->chip_id == chip_8001) {
87 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
88 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
89 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
90 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
91 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
92 } else {
93 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
94 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
95 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
96 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
97 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev));
98 }
99 }
100 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
101
102 /**
103 * pm8001_ctl_ila_version_show - ila version
104 * @cdev: pointer to embedded class device
105 * @buf: the buffer returned
106 *
107 * A sysfs 'read-only' shost attribute.
108 */
109 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
110 struct device_attribute *attr, char *buf)
111 {
112 struct Scsi_Host *shost = class_to_shost(cdev);
113 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
114 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
115
116 if (pm8001_ha->chip_id != chip_8001) {
117 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
118 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
119 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
120 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
121 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version));
122 }
123 return 0;
124 }
125 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
126
127 /**
128 * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number
129 * @cdev: pointer to embedded class device
130 * @buf: the buffer returned
131 *
132 * A sysfs 'read-only' shost attribute.
133 */
134 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
135 struct device_attribute *attr, char *buf)
136 {
137 struct Scsi_Host *shost = class_to_shost(cdev);
138 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
139 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
140
141 if (pm8001_ha->chip_id != chip_8001) {
142 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
143 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
144 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
145 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
146 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version));
147 }
148 return 0;
149 }
150 static
151 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
152
153 /**
154 * pm8001_ctl_max_out_io_show - max outstanding io supported
155 * @cdev: pointer to embedded class device
156 * @buf: the buffer returned
157 *
158 * A sysfs 'read-only' shost attribute.
159 */
160 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
161 struct device_attribute *attr, char *buf)
162 {
163 struct Scsi_Host *shost = class_to_shost(cdev);
164 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
165 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
166
167 if (pm8001_ha->chip_id == chip_8001) {
168 return snprintf(buf, PAGE_SIZE, "%d\n",
169 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
170 } else {
171 return snprintf(buf, PAGE_SIZE, "%d\n",
172 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
173 }
174 }
175 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
176 /**
177 * pm8001_ctl_max_devices_show - max devices support
178 * @cdev: pointer to embedded class device
179 * @buf: the buffer returned
180 *
181 * A sysfs 'read-only' shost attribute.
182 */
183 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
184 struct device_attribute *attr, char *buf)
185 {
186 struct Scsi_Host *shost = class_to_shost(cdev);
187 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
188 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
189
190 if (pm8001_ha->chip_id == chip_8001) {
191 return snprintf(buf, PAGE_SIZE, "%04d\n",
192 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
193 );
194 } else {
195 return snprintf(buf, PAGE_SIZE, "%04d\n",
196 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
197 );
198 }
199 }
200 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
201 /**
202 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
203 * hardware limitation
204 * @cdev: pointer to embedded class device
205 * @buf: the buffer returned
206 *
207 * A sysfs 'read-only' shost attribute.
208 */
209 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
210 struct device_attribute *attr, char *buf)
211 {
212 struct Scsi_Host *shost = class_to_shost(cdev);
213 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
214 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
215
216 if (pm8001_ha->chip_id == chip_8001) {
217 return snprintf(buf, PAGE_SIZE, "%04d\n",
218 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
219 );
220 } else {
221 return snprintf(buf, PAGE_SIZE, "%04d\n",
222 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
223 );
224 }
225 }
226 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
227
228 #define SAS_1_0 0x1
229 #define SAS_1_1 0x2
230 #define SAS_2_0 0x4
231
232 static ssize_t
233 show_sas_spec_support_status(unsigned int mode, char *buf)
234 {
235 ssize_t len = 0;
236
237 if (mode & SAS_1_1)
238 len = sprintf(buf, "%s", "SAS1.1");
239 if (mode & SAS_2_0)
240 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
241 len += sprintf(buf + len, "\n");
242
243 return len;
244 }
245
246 /**
247 * pm8001_ctl_sas_spec_support_show - sas spec supported
248 * @cdev: pointer to embedded class device
249 * @buf: the buffer returned
250 *
251 * A sysfs 'read-only' shost attribute.
252 */
253 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
254 struct device_attribute *attr, char *buf)
255 {
256 unsigned int mode;
257 struct Scsi_Host *shost = class_to_shost(cdev);
258 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
259 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
260 /* fe000000 means supports SAS2.1 */
261 if (pm8001_ha->chip_id == chip_8001)
262 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
263 0xfe000000)>>25;
264 else
265 /* fe000000 means supports SAS2.1 */
266 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
267 0xfe000000)>>25;
268 return show_sas_spec_support_status(mode, buf);
269 }
270 static DEVICE_ATTR(sas_spec_support, S_IRUGO,
271 pm8001_ctl_sas_spec_support_show, NULL);
272
273 /**
274 * pm8001_ctl_sas_address_show - sas address
275 * @cdev: pointer to embedded class device
276 * @buf: the buffer returned
277 *
278 * This is the controller sas address
279 *
280 * A sysfs 'read-only' shost attribute.
281 */
282 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
283 struct device_attribute *attr, char *buf)
284 {
285 struct Scsi_Host *shost = class_to_shost(cdev);
286 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
287 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
288 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
289 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
290 }
291 static DEVICE_ATTR(host_sas_address, S_IRUGO,
292 pm8001_ctl_host_sas_address_show, NULL);
293
294 /**
295 * pm8001_ctl_logging_level_show - logging level
296 * @cdev: pointer to embedded class device
297 * @buf: the buffer returned
298 *
299 * A sysfs 'read/write' shost attribute.
300 */
301 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
302 struct device_attribute *attr, char *buf)
303 {
304 struct Scsi_Host *shost = class_to_shost(cdev);
305 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
306 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
307
308 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
309 }
310 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
311 struct device_attribute *attr, const char *buf, size_t count)
312 {
313 struct Scsi_Host *shost = class_to_shost(cdev);
314 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
315 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
316 int val = 0;
317
318 if (sscanf(buf, "%x", &val) != 1)
319 return -EINVAL;
320
321 pm8001_ha->logging_level = val;
322 return strlen(buf);
323 }
324
325 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
326 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
327 /**
328 * pm8001_ctl_aap_log_show - aap1 event log
329 * @cdev: pointer to embedded class device
330 * @buf: the buffer returned
331 *
332 * A sysfs 'read-only' shost attribute.
333 */
334 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
335 struct device_attribute *attr, char *buf)
336 {
337 struct Scsi_Host *shost = class_to_shost(cdev);
338 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
339 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
340 int i;
341 #define AAP1_MEMMAP(r, c) \
342 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
343 + (c)))
344
345 char *str = buf;
346 int max = 2;
347 for (i = 0; i < max; i++) {
348 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
349 "0x%08x 0x%08x\n",
350 AAP1_MEMMAP(i, 0),
351 AAP1_MEMMAP(i, 4),
352 AAP1_MEMMAP(i, 8),
353 AAP1_MEMMAP(i, 12),
354 AAP1_MEMMAP(i, 16),
355 AAP1_MEMMAP(i, 20),
356 AAP1_MEMMAP(i, 24),
357 AAP1_MEMMAP(i, 28));
358 }
359
360 return str - buf;
361 }
362 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
363 /**
364 * pm8001_ctl_ib_queue_log_show - Out bound Queue log
365 * @cdev:pointer to embedded class device
366 * @buf: the buffer returned
367 * A sysfs 'read-only' shost attribute.
368 */
369 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
370 struct device_attribute *attr, char *buf)
371 {
372 struct Scsi_Host *shost = class_to_shost(cdev);
373 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
374 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
375 int offset;
376 char *str = buf;
377 int start = 0;
378 #define IB_MEMMAP(c) \
379 (*(u32 *)((u8 *)pm8001_ha-> \
380 memoryMap.region[IB].virt_ptr + \
381 pm8001_ha->evtlog_ib_offset + (c)))
382
383 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
384 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
385 start = start + 4;
386 }
387 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
388 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
389 pm8001_ha->evtlog_ib_offset = 0;
390
391 return str - buf;
392 }
393
394 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
395 /**
396 * pm8001_ctl_ob_queue_log_show - Out bound Queue log
397 * @cdev:pointer to embedded class device
398 * @buf: the buffer returned
399 * A sysfs 'read-only' shost attribute.
400 */
401
402 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
403 struct device_attribute *attr, char *buf)
404 {
405 struct Scsi_Host *shost = class_to_shost(cdev);
406 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
407 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
408 int offset;
409 char *str = buf;
410 int start = 0;
411 #define OB_MEMMAP(c) \
412 (*(u32 *)((u8 *)pm8001_ha-> \
413 memoryMap.region[OB].virt_ptr + \
414 pm8001_ha->evtlog_ob_offset + (c)))
415
416 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
417 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
418 start = start + 4;
419 }
420 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
421 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
422 pm8001_ha->evtlog_ob_offset = 0;
423
424 return str - buf;
425 }
426 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
427 /**
428 * pm8001_ctl_bios_version_show - Bios version Display
429 * @cdev:pointer to embedded class device
430 * @buf:the buffer returned
431 * A sysfs 'read-only' shost attribute.
432 */
433 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
434 struct device_attribute *attr, char *buf)
435 {
436 struct Scsi_Host *shost = class_to_shost(cdev);
437 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
438 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
439 char *str = buf;
440 int bios_index;
441 DECLARE_COMPLETION_ONSTACK(completion);
442 struct pm8001_ioctl_payload payload;
443
444 pm8001_ha->nvmd_completion = &completion;
445 payload.minor_function = 7;
446 payload.offset = 0;
447 payload.length = 4096;
448 payload.func_specific = kzalloc(4096, GFP_KERNEL);
449 if (!payload.func_specific)
450 return -ENOMEM;
451 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
452 kfree(payload.func_specific);
453 return -ENOMEM;
454 }
455 wait_for_completion(&completion);
456 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
457 bios_index++)
458 str += sprintf(str, "%c",
459 *(payload.func_specific+bios_index));
460 kfree(payload.func_specific);
461 return str - buf;
462 }
463 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
464 /**
465 * event_log_size_show - event log size
466 * @cdev: pointer to embedded class device
467 * @buf: the buffer returned
468 *
469 * A sysfs read shost attribute.
470 */
471 static ssize_t event_log_size_show(struct device *cdev,
472 struct device_attribute *attr, char *buf)
473 {
474 struct Scsi_Host *shost = class_to_shost(cdev);
475 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
476 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
477
478 return snprintf(buf, PAGE_SIZE, "%d\n",
479 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
480 }
481 static DEVICE_ATTR_RO(event_log_size);
482 /**
483 * pm8001_ctl_aap_log_show - IOP event log
484 * @cdev: pointer to embedded class device
485 * @buf: the buffer returned
486 *
487 * A sysfs 'read-only' shost attribute.
488 */
489 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
490 struct device_attribute *attr, char *buf)
491 {
492 struct Scsi_Host *shost = class_to_shost(cdev);
493 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
494 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
495 char *str = buf;
496 u32 read_size =
497 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024;
498 static u32 start, end, count;
499 u32 max_read_times = 32;
500 u32 max_count = (read_size * 1024) / (max_read_times * 4);
501 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr;
502
503 if ((count % max_count) == 0) {
504 start = 0;
505 end = max_read_times;
506 count = 0;
507 } else {
508 start = end;
509 end = end + max_read_times;
510 }
511
512 for (; start < end; start++)
513 str += sprintf(str, "%08x ", *(temp+start));
514 count++;
515 return str - buf;
516 }
517 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
518
519 /**
520 ** pm8001_ctl_fatal_log_show - fatal error logging
521 ** @cdev:pointer to embedded class device
522 ** @buf: the buffer returned
523 **
524 ** A sysfs 'read-only' shost attribute.
525 **/
526
527 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
528 struct device_attribute *attr, char *buf)
529 {
530 ssize_t count;
531
532 count = pm80xx_get_fatal_dump(cdev, attr, buf);
533 return count;
534 }
535
536 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
537
538
539 /**
540 ** pm8001_ctl_gsm_log_show - gsm dump collection
541 ** @cdev:pointer to embedded class device
542 ** @buf: the buffer returned
543 **A sysfs 'read-only' shost attribute.
544 **/
545 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
546 struct device_attribute *attr, char *buf)
547 {
548 ssize_t count;
549
550 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
551 return count;
552 }
553
554 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
555
556 #define FLASH_CMD_NONE 0x00
557 #define FLASH_CMD_UPDATE 0x01
558 #define FLASH_CMD_SET_NVMD 0x02
559
560 struct flash_command {
561 u8 command[8];
562 int code;
563 };
564
565 static struct flash_command flash_command_table[] =
566 {
567 {"set_nvmd", FLASH_CMD_SET_NVMD},
568 {"update", FLASH_CMD_UPDATE},
569 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
570 };
571
572 struct error_fw {
573 char *reason;
574 int err_code;
575 };
576
577 static struct error_fw flash_error_table[] =
578 {
579 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
580 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
581 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
582 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
583 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
584 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
585 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
586 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
587 {"Flash in progress", FLASH_IN_PROGRESS},
588 {"Image file size Error", FAIL_FILE_SIZE},
589 {"Input parameter error", FAIL_PARAMETERS},
590 {"Out of memory", FAIL_OUT_MEMORY},
591 {"OK", 0} /* Last entry err_code = 0. */
592 };
593
594 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
595 {
596 struct pm8001_ioctl_payload *payload;
597 DECLARE_COMPLETION_ONSTACK(completion);
598 u8 *ioctlbuffer;
599 u32 ret;
600 u32 length = 1024 * 5 + sizeof(*payload) - 1;
601
602 if (pm8001_ha->fw_image->size > 4096) {
603 pm8001_ha->fw_status = FAIL_FILE_SIZE;
604 return -EFAULT;
605 }
606
607 ioctlbuffer = kzalloc(length, GFP_KERNEL);
608 if (!ioctlbuffer) {
609 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
610 return -ENOMEM;
611 }
612 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
613 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
614 pm8001_ha->fw_image->size);
615 payload->length = pm8001_ha->fw_image->size;
616 payload->id = 0;
617 payload->minor_function = 0x1;
618 pm8001_ha->nvmd_completion = &completion;
619 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
620 if (ret) {
621 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
622 goto out;
623 }
624 wait_for_completion(&completion);
625 out:
626 kfree(ioctlbuffer);
627 return ret;
628 }
629
630 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
631 {
632 struct pm8001_ioctl_payload *payload;
633 DECLARE_COMPLETION_ONSTACK(completion);
634 u8 *ioctlbuffer;
635 struct fw_control_info *fwControl;
636 u32 partitionSize, partitionSizeTmp;
637 u32 loopNumber, loopcount;
638 struct pm8001_fw_image_header *image_hdr;
639 u32 sizeRead = 0;
640 u32 ret = 0;
641 u32 length = 1024 * 16 + sizeof(*payload) - 1;
642
643 if (pm8001_ha->fw_image->size < 28) {
644 pm8001_ha->fw_status = FAIL_FILE_SIZE;
645 return -EFAULT;
646 }
647 ioctlbuffer = kzalloc(length, GFP_KERNEL);
648 if (!ioctlbuffer) {
649 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
650 return -ENOMEM;
651 }
652 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
653 while (sizeRead < pm8001_ha->fw_image->size) {
654 partitionSizeTmp =
655 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
656 partitionSize = be32_to_cpu(partitionSizeTmp);
657 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
658 IOCTL_BUF_SIZE);
659 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
660 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
661 payload->length = 1024*16;
662 payload->id = 0;
663 fwControl =
664 (struct fw_control_info *)&payload->func_specific;
665 fwControl->len = IOCTL_BUF_SIZE; /* IN */
666 fwControl->size = partitionSize + HEADER_LEN;/* IN */
667 fwControl->retcode = 0;/* OUT */
668 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
669
670 /* for the last chunk of data in case file size is not even with
671 4k, load only the rest*/
672 if (((loopcount-loopNumber) == 1) &&
673 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
674 fwControl->len =
675 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
676 memcpy((u8 *)fwControl->buffer,
677 (u8 *)pm8001_ha->fw_image->data + sizeRead,
678 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
679 sizeRead +=
680 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
681 } else {
682 memcpy((u8 *)fwControl->buffer,
683 (u8 *)pm8001_ha->fw_image->data + sizeRead,
684 IOCTL_BUF_SIZE);
685 sizeRead += IOCTL_BUF_SIZE;
686 }
687
688 pm8001_ha->nvmd_completion = &completion;
689 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
690 if (ret) {
691 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
692 goto out;
693 }
694 wait_for_completion(&completion);
695 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
696 pm8001_ha->fw_status = fwControl->retcode;
697 ret = -EFAULT;
698 goto out;
699 }
700 }
701 }
702 out:
703 kfree(ioctlbuffer);
704 return ret;
705 }
706 static ssize_t pm8001_store_update_fw(struct device *cdev,
707 struct device_attribute *attr,
708 const char *buf, size_t count)
709 {
710 struct Scsi_Host *shost = class_to_shost(cdev);
711 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
712 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
713 char *cmd_ptr, *filename_ptr;
714 int res, i;
715 int flash_command = FLASH_CMD_NONE;
716 int ret;
717
718 if (!capable(CAP_SYS_ADMIN))
719 return -EACCES;
720
721 /* this test protects us from running two flash processes at once,
722 * so we should start with this test */
723 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
724 return -EINPROGRESS;
725 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
726
727 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
728 if (!cmd_ptr) {
729 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
730 return -ENOMEM;
731 }
732
733 filename_ptr = cmd_ptr + count;
734 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
735 if (res != 2) {
736 pm8001_ha->fw_status = FAIL_PARAMETERS;
737 ret = -EINVAL;
738 goto out;
739 }
740
741 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
742 if (!memcmp(flash_command_table[i].command,
743 cmd_ptr, strlen(cmd_ptr))) {
744 flash_command = flash_command_table[i].code;
745 break;
746 }
747 }
748 if (flash_command == FLASH_CMD_NONE) {
749 pm8001_ha->fw_status = FAIL_PARAMETERS;
750 ret = -EINVAL;
751 goto out;
752 }
753
754 ret = request_firmware(&pm8001_ha->fw_image,
755 filename_ptr,
756 pm8001_ha->dev);
757
758 if (ret) {
759 PM8001_FAIL_DBG(pm8001_ha,
760 pm8001_printk(
761 "Failed to load firmware image file %s, error %d\n",
762 filename_ptr, ret));
763 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
764 goto out;
765 }
766
767 if (FLASH_CMD_UPDATE == flash_command)
768 ret = pm8001_update_flash(pm8001_ha);
769 else
770 ret = pm8001_set_nvmd(pm8001_ha);
771
772 release_firmware(pm8001_ha->fw_image);
773 out:
774 kfree(cmd_ptr);
775
776 if (ret)
777 return ret;
778
779 pm8001_ha->fw_status = FLASH_OK;
780 return count;
781 }
782
783 static ssize_t pm8001_show_update_fw(struct device *cdev,
784 struct device_attribute *attr, char *buf)
785 {
786 int i;
787 struct Scsi_Host *shost = class_to_shost(cdev);
788 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
789 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
790
791 for (i = 0; flash_error_table[i].err_code != 0; i++) {
792 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
793 break;
794 }
795 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
796 pm8001_ha->fw_status = FLASH_OK;
797
798 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
799 flash_error_table[i].err_code,
800 flash_error_table[i].reason);
801 }
802
803 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
804 pm8001_show_update_fw, pm8001_store_update_fw);
805 struct device_attribute *pm8001_host_attrs[] = {
806 &dev_attr_interface_rev,
807 &dev_attr_fw_version,
808 &dev_attr_update_fw,
809 &dev_attr_aap_log,
810 &dev_attr_iop_log,
811 &dev_attr_fatal_log,
812 &dev_attr_gsm_log,
813 &dev_attr_max_out_io,
814 &dev_attr_max_devices,
815 &dev_attr_max_sg_list,
816 &dev_attr_sas_spec_support,
817 &dev_attr_logging_level,
818 &dev_attr_event_log_size,
819 &dev_attr_host_sas_address,
820 &dev_attr_bios_version,
821 &dev_attr_ib_log,
822 &dev_attr_ob_log,
823 &dev_attr_ila_version,
824 &dev_attr_inc_fw_ver,
825 NULL,
826 };
827
Linux with added FPC-III support