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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / scsi / pm8001 / pm8001_ctl.c
blob7c6be2ec110d11e8cc8086bca028ae0557559c20
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 * controller_fatal_error_show - check controller is under fatal err
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 controller_fatal_error_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 return snprintf(buf, PAGE_SIZE, "%d\n",
87 pm8001_ha->controller_fatal_error);
88 }
89 static DEVICE_ATTR_RO(controller_fatal_error);
90
91 /**
92 * pm8001_ctl_fw_version_show - firmware version
93 * @cdev: pointer to embedded class device
94 * @buf: the buffer returned
95 *
96 * A sysfs 'read-only' shost attribute.
97 */
98 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
99 struct device_attribute *attr, char *buf)
100 {
101 struct Scsi_Host *shost = class_to_shost(cdev);
102 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
103 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
104
105 if (pm8001_ha->chip_id == chip_8001) {
106 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
107 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
108 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
109 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
110 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
111 } else {
112 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
113 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
114 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
115 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
116 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev));
117 }
118 }
119 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
120
121 /**
122 * pm8001_ctl_ila_version_show - ila version
123 * @cdev: pointer to embedded class device
124 * @buf: the buffer returned
125 *
126 * A sysfs 'read-only' shost attribute.
127 */
128 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
129 struct device_attribute *attr, char *buf)
130 {
131 struct Scsi_Host *shost = class_to_shost(cdev);
132 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
133 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
134
135 if (pm8001_ha->chip_id != chip_8001) {
136 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
137 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
138 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
139 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
140 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version));
141 }
142 return 0;
143 }
144 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
145
146 /**
147 * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number
148 * @cdev: pointer to embedded class device
149 * @buf: the buffer returned
150 *
151 * A sysfs 'read-only' shost attribute.
152 */
153 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
154 struct device_attribute *attr, char *buf)
155 {
156 struct Scsi_Host *shost = class_to_shost(cdev);
157 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
158 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
159
160 if (pm8001_ha->chip_id != chip_8001) {
161 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
162 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
163 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
164 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
165 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version));
166 }
167 return 0;
168 }
169 static
170 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
171
172 /**
173 * pm8001_ctl_max_out_io_show - max outstanding io supported
174 * @cdev: pointer to embedded class device
175 * @buf: the buffer returned
176 *
177 * A sysfs 'read-only' shost attribute.
178 */
179 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
180 struct device_attribute *attr, char *buf)
181 {
182 struct Scsi_Host *shost = class_to_shost(cdev);
183 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
184 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
185
186 if (pm8001_ha->chip_id == chip_8001) {
187 return snprintf(buf, PAGE_SIZE, "%d\n",
188 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
189 } else {
190 return snprintf(buf, PAGE_SIZE, "%d\n",
191 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
192 }
193 }
194 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
195 /**
196 * pm8001_ctl_max_devices_show - max devices support
197 * @cdev: pointer to embedded class device
198 * @buf: the buffer returned
199 *
200 * A sysfs 'read-only' shost attribute.
201 */
202 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
203 struct device_attribute *attr, char *buf)
204 {
205 struct Scsi_Host *shost = class_to_shost(cdev);
206 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
207 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
208
209 if (pm8001_ha->chip_id == chip_8001) {
210 return snprintf(buf, PAGE_SIZE, "%04d\n",
211 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
212 );
213 } else {
214 return snprintf(buf, PAGE_SIZE, "%04d\n",
215 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
216 );
217 }
218 }
219 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
220 /**
221 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
222 * hardware limitation
223 * @cdev: pointer to embedded class device
224 * @buf: the buffer returned
225 *
226 * A sysfs 'read-only' shost attribute.
227 */
228 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
229 struct device_attribute *attr, char *buf)
230 {
231 struct Scsi_Host *shost = class_to_shost(cdev);
232 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
233 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
234
235 if (pm8001_ha->chip_id == chip_8001) {
236 return snprintf(buf, PAGE_SIZE, "%04d\n",
237 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
238 );
239 } else {
240 return snprintf(buf, PAGE_SIZE, "%04d\n",
241 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
242 );
243 }
244 }
245 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
246
247 #define SAS_1_0 0x1
248 #define SAS_1_1 0x2
249 #define SAS_2_0 0x4
250
251 static ssize_t
252 show_sas_spec_support_status(unsigned int mode, char *buf)
253 {
254 ssize_t len = 0;
255
256 if (mode & SAS_1_1)
257 len = sprintf(buf, "%s", "SAS1.1");
258 if (mode & SAS_2_0)
259 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
260 len += sprintf(buf + len, "\n");
261
262 return len;
263 }
264
265 /**
266 * pm8001_ctl_sas_spec_support_show - sas spec supported
267 * @cdev: pointer to embedded class device
268 * @buf: the buffer returned
269 *
270 * A sysfs 'read-only' shost attribute.
271 */
272 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
273 struct device_attribute *attr, char *buf)
274 {
275 unsigned int mode;
276 struct Scsi_Host *shost = class_to_shost(cdev);
277 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
278 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
279 /* fe000000 means supports SAS2.1 */
280 if (pm8001_ha->chip_id == chip_8001)
281 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
282 0xfe000000)>>25;
283 else
284 /* fe000000 means supports SAS2.1 */
285 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
286 0xfe000000)>>25;
287 return show_sas_spec_support_status(mode, buf);
288 }
289 static DEVICE_ATTR(sas_spec_support, S_IRUGO,
290 pm8001_ctl_sas_spec_support_show, NULL);
291
292 /**
293 * pm8001_ctl_sas_address_show - sas address
294 * @cdev: pointer to embedded class device
295 * @buf: the buffer returned
296 *
297 * This is the controller sas address
298 *
299 * A sysfs 'read-only' shost attribute.
300 */
301 static ssize_t pm8001_ctl_host_sas_address_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 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
308 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
309 }
310 static DEVICE_ATTR(host_sas_address, S_IRUGO,
311 pm8001_ctl_host_sas_address_show, NULL);
312
313 /**
314 * pm8001_ctl_logging_level_show - logging level
315 * @cdev: pointer to embedded class device
316 * @buf: the buffer returned
317 *
318 * A sysfs 'read/write' shost attribute.
319 */
320 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
321 struct device_attribute *attr, char *buf)
322 {
323 struct Scsi_Host *shost = class_to_shost(cdev);
324 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
325 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
326
327 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
328 }
329 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
330 struct device_attribute *attr, const char *buf, size_t count)
331 {
332 struct Scsi_Host *shost = class_to_shost(cdev);
333 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
334 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
335 int val = 0;
336
337 if (sscanf(buf, "%x", &val) != 1)
338 return -EINVAL;
339
340 pm8001_ha->logging_level = val;
341 return strlen(buf);
342 }
343
344 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
345 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
346 /**
347 * pm8001_ctl_aap_log_show - aap1 event log
348 * @cdev: pointer to embedded class device
349 * @buf: the buffer returned
350 *
351 * A sysfs 'read-only' shost attribute.
352 */
353 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
354 struct device_attribute *attr, char *buf)
355 {
356 struct Scsi_Host *shost = class_to_shost(cdev);
357 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
358 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
359 int i;
360 #define AAP1_MEMMAP(r, c) \
361 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
362 + (c)))
363
364 char *str = buf;
365 int max = 2;
366 for (i = 0; i < max; i++) {
367 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
368 "0x%08x 0x%08x\n",
369 AAP1_MEMMAP(i, 0),
370 AAP1_MEMMAP(i, 4),
371 AAP1_MEMMAP(i, 8),
372 AAP1_MEMMAP(i, 12),
373 AAP1_MEMMAP(i, 16),
374 AAP1_MEMMAP(i, 20),
375 AAP1_MEMMAP(i, 24),
376 AAP1_MEMMAP(i, 28));
377 }
378
379 return str - buf;
380 }
381 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
382 /**
383 * pm8001_ctl_ib_queue_log_show - Out bound Queue log
384 * @cdev:pointer to embedded class device
385 * @buf: the buffer returned
386 * A sysfs 'read-only' shost attribute.
387 */
388 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
389 struct device_attribute *attr, char *buf)
390 {
391 struct Scsi_Host *shost = class_to_shost(cdev);
392 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
393 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
394 int offset;
395 char *str = buf;
396 int start = 0;
397 #define IB_MEMMAP(c) \
398 (*(u32 *)((u8 *)pm8001_ha-> \
399 memoryMap.region[IB].virt_ptr + \
400 pm8001_ha->evtlog_ib_offset + (c)))
401
402 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
403 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
404 start = start + 4;
405 }
406 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
407 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
408 pm8001_ha->evtlog_ib_offset = 0;
409
410 return str - buf;
411 }
412
413 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
414 /**
415 * pm8001_ctl_ob_queue_log_show - Out bound Queue log
416 * @cdev:pointer to embedded class device
417 * @buf: the buffer returned
418 * A sysfs 'read-only' shost attribute.
419 */
420
421 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
422 struct device_attribute *attr, char *buf)
423 {
424 struct Scsi_Host *shost = class_to_shost(cdev);
425 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
426 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
427 int offset;
428 char *str = buf;
429 int start = 0;
430 #define OB_MEMMAP(c) \
431 (*(u32 *)((u8 *)pm8001_ha-> \
432 memoryMap.region[OB].virt_ptr + \
433 pm8001_ha->evtlog_ob_offset + (c)))
434
435 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
436 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
437 start = start + 4;
438 }
439 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
440 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
441 pm8001_ha->evtlog_ob_offset = 0;
442
443 return str - buf;
444 }
445 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
446 /**
447 * pm8001_ctl_bios_version_show - Bios version Display
448 * @cdev:pointer to embedded class device
449 * @buf:the buffer returned
450 * A sysfs 'read-only' shost attribute.
451 */
452 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
453 struct device_attribute *attr, char *buf)
454 {
455 struct Scsi_Host *shost = class_to_shost(cdev);
456 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
457 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
458 char *str = buf;
459 int bios_index;
460 DECLARE_COMPLETION_ONSTACK(completion);
461 struct pm8001_ioctl_payload payload;
462
463 pm8001_ha->nvmd_completion = &completion;
464 payload.minor_function = 7;
465 payload.offset = 0;
466 payload.length = 4096;
467 payload.func_specific = kzalloc(4096, GFP_KERNEL);
468 if (!payload.func_specific)
469 return -ENOMEM;
470 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
471 kfree(payload.func_specific);
472 return -ENOMEM;
473 }
474 wait_for_completion(&completion);
475 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
476 bios_index++)
477 str += sprintf(str, "%c",
478 *(payload.func_specific+bios_index));
479 kfree(payload.func_specific);
480 return str - buf;
481 }
482 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
483 /**
484 * event_log_size_show - event log size
485 * @cdev: pointer to embedded class device
486 * @buf: the buffer returned
487 *
488 * A sysfs read shost attribute.
489 */
490 static ssize_t event_log_size_show(struct device *cdev,
491 struct device_attribute *attr, char *buf)
492 {
493 struct Scsi_Host *shost = class_to_shost(cdev);
494 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
495 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
496
497 return snprintf(buf, PAGE_SIZE, "%d\n",
498 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
499 }
500 static DEVICE_ATTR_RO(event_log_size);
501 /**
502 * pm8001_ctl_aap_log_show - IOP event log
503 * @cdev: pointer to embedded class device
504 * @buf: the buffer returned
505 *
506 * A sysfs 'read-only' shost attribute.
507 */
508 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
509 struct device_attribute *attr, char *buf)
510 {
511 struct Scsi_Host *shost = class_to_shost(cdev);
512 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
513 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
514 char *str = buf;
515 u32 read_size =
516 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024;
517 static u32 start, end, count;
518 u32 max_read_times = 32;
519 u32 max_count = (read_size * 1024) / (max_read_times * 4);
520 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr;
521
522 if ((count % max_count) == 0) {
523 start = 0;
524 end = max_read_times;
525 count = 0;
526 } else {
527 start = end;
528 end = end + max_read_times;
529 }
530
531 for (; start < end; start++)
532 str += sprintf(str, "%08x ", *(temp+start));
533 count++;
534 return str - buf;
535 }
536 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
537
538 /**
539 ** pm8001_ctl_fatal_log_show - fatal error logging
540 ** @cdev:pointer to embedded class device
541 ** @buf: the buffer returned
542 **
543 ** A sysfs 'read-only' shost attribute.
544 **/
545
546 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
547 struct device_attribute *attr, char *buf)
548 {
549 ssize_t count;
550
551 count = pm80xx_get_fatal_dump(cdev, attr, buf);
552 return count;
553 }
554
555 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
556
557
558 /**
559 ** pm8001_ctl_gsm_log_show - gsm dump collection
560 ** @cdev:pointer to embedded class device
561 ** @buf: the buffer returned
562 **A sysfs 'read-only' shost attribute.
563 **/
564 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
565 struct device_attribute *attr, char *buf)
566 {
567 ssize_t count;
568
569 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
570 return count;
571 }
572
573 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
574
575 #define FLASH_CMD_NONE 0x00
576 #define FLASH_CMD_UPDATE 0x01
577 #define FLASH_CMD_SET_NVMD 0x02
578
579 struct flash_command {
580 u8 command[8];
581 int code;
582 };
583
584 static struct flash_command flash_command_table[] =
585 {
586 {"set_nvmd", FLASH_CMD_SET_NVMD},
587 {"update", FLASH_CMD_UPDATE},
588 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
589 };
590
591 struct error_fw {
592 char *reason;
593 int err_code;
594 };
595
596 static struct error_fw flash_error_table[] =
597 {
598 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
599 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
600 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
601 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
602 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
603 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
604 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
605 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
606 {"Flash in progress", FLASH_IN_PROGRESS},
607 {"Image file size Error", FAIL_FILE_SIZE},
608 {"Input parameter error", FAIL_PARAMETERS},
609 {"Out of memory", FAIL_OUT_MEMORY},
610 {"OK", 0} /* Last entry err_code = 0. */
611 };
612
613 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
614 {
615 struct pm8001_ioctl_payload *payload;
616 DECLARE_COMPLETION_ONSTACK(completion);
617 u8 *ioctlbuffer;
618 u32 ret;
619 u32 length = 1024 * 5 + sizeof(*payload) - 1;
620
621 if (pm8001_ha->fw_image->size > 4096) {
622 pm8001_ha->fw_status = FAIL_FILE_SIZE;
623 return -EFAULT;
624 }
625
626 ioctlbuffer = kzalloc(length, GFP_KERNEL);
627 if (!ioctlbuffer) {
628 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
629 return -ENOMEM;
630 }
631 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
632 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
633 pm8001_ha->fw_image->size);
634 payload->length = pm8001_ha->fw_image->size;
635 payload->id = 0;
636 payload->minor_function = 0x1;
637 pm8001_ha->nvmd_completion = &completion;
638 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
639 if (ret) {
640 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
641 goto out;
642 }
643 wait_for_completion(&completion);
644 out:
645 kfree(ioctlbuffer);
646 return ret;
647 }
648
649 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
650 {
651 struct pm8001_ioctl_payload *payload;
652 DECLARE_COMPLETION_ONSTACK(completion);
653 u8 *ioctlbuffer;
654 struct fw_control_info *fwControl;
655 u32 partitionSize, partitionSizeTmp;
656 u32 loopNumber, loopcount;
657 struct pm8001_fw_image_header *image_hdr;
658 u32 sizeRead = 0;
659 u32 ret = 0;
660 u32 length = 1024 * 16 + sizeof(*payload) - 1;
661
662 if (pm8001_ha->fw_image->size < 28) {
663 pm8001_ha->fw_status = FAIL_FILE_SIZE;
664 return -EFAULT;
665 }
666 ioctlbuffer = kzalloc(length, GFP_KERNEL);
667 if (!ioctlbuffer) {
668 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
669 return -ENOMEM;
670 }
671 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
672 while (sizeRead < pm8001_ha->fw_image->size) {
673 partitionSizeTmp =
674 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
675 partitionSize = be32_to_cpu(partitionSizeTmp);
676 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
677 IOCTL_BUF_SIZE);
678 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
679 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
680 payload->length = 1024*16;
681 payload->id = 0;
682 fwControl =
683 (struct fw_control_info *)&payload->func_specific;
684 fwControl->len = IOCTL_BUF_SIZE; /* IN */
685 fwControl->size = partitionSize + HEADER_LEN;/* IN */
686 fwControl->retcode = 0;/* OUT */
687 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
688
689 /* for the last chunk of data in case file size is not even with
690 4k, load only the rest*/
691 if (((loopcount-loopNumber) == 1) &&
692 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
693 fwControl->len =
694 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
695 memcpy((u8 *)fwControl->buffer,
696 (u8 *)pm8001_ha->fw_image->data + sizeRead,
697 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
698 sizeRead +=
699 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
700 } else {
701 memcpy((u8 *)fwControl->buffer,
702 (u8 *)pm8001_ha->fw_image->data + sizeRead,
703 IOCTL_BUF_SIZE);
704 sizeRead += IOCTL_BUF_SIZE;
705 }
706
707 pm8001_ha->nvmd_completion = &completion;
708 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
709 if (ret) {
710 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
711 goto out;
712 }
713 wait_for_completion(&completion);
714 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
715 pm8001_ha->fw_status = fwControl->retcode;
716 ret = -EFAULT;
717 goto out;
718 }
719 }
720 }
721 out:
722 kfree(ioctlbuffer);
723 return ret;
724 }
725 static ssize_t pm8001_store_update_fw(struct device *cdev,
726 struct device_attribute *attr,
727 const char *buf, size_t count)
728 {
729 struct Scsi_Host *shost = class_to_shost(cdev);
730 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
731 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
732 char *cmd_ptr, *filename_ptr;
733 int res, i;
734 int flash_command = FLASH_CMD_NONE;
735 int ret;
736
737 if (!capable(CAP_SYS_ADMIN))
738 return -EACCES;
739
740 /* this test protects us from running two flash processes at once,
741 * so we should start with this test */
742 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
743 return -EINPROGRESS;
744 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
745
746 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
747 if (!cmd_ptr) {
748 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
749 return -ENOMEM;
750 }
751
752 filename_ptr = cmd_ptr + count;
753 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
754 if (res != 2) {
755 pm8001_ha->fw_status = FAIL_PARAMETERS;
756 ret = -EINVAL;
757 goto out;
758 }
759
760 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
761 if (!memcmp(flash_command_table[i].command,
762 cmd_ptr, strlen(cmd_ptr))) {
763 flash_command = flash_command_table[i].code;
764 break;
765 }
766 }
767 if (flash_command == FLASH_CMD_NONE) {
768 pm8001_ha->fw_status = FAIL_PARAMETERS;
769 ret = -EINVAL;
770 goto out;
771 }
772
773 ret = request_firmware(&pm8001_ha->fw_image,
774 filename_ptr,
775 pm8001_ha->dev);
776
777 if (ret) {
778 PM8001_FAIL_DBG(pm8001_ha,
779 pm8001_printk(
780 "Failed to load firmware image file %s, error %d\n",
781 filename_ptr, ret));
782 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
783 goto out;
784 }
785
786 if (FLASH_CMD_UPDATE == flash_command)
787 ret = pm8001_update_flash(pm8001_ha);
788 else
789 ret = pm8001_set_nvmd(pm8001_ha);
790
791 release_firmware(pm8001_ha->fw_image);
792 out:
793 kfree(cmd_ptr);
794
795 if (ret)
796 return ret;
797
798 pm8001_ha->fw_status = FLASH_OK;
799 return count;
800 }
801
802 static ssize_t pm8001_show_update_fw(struct device *cdev,
803 struct device_attribute *attr, char *buf)
804 {
805 int i;
806 struct Scsi_Host *shost = class_to_shost(cdev);
807 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
808 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
809
810 for (i = 0; flash_error_table[i].err_code != 0; i++) {
811 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
812 break;
813 }
814 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
815 pm8001_ha->fw_status = FLASH_OK;
816
817 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
818 flash_error_table[i].err_code,
819 flash_error_table[i].reason);
820 }
821
822 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
823 pm8001_show_update_fw, pm8001_store_update_fw);
824 struct device_attribute *pm8001_host_attrs[] = {
825 &dev_attr_interface_rev,
826 &dev_attr_controller_fatal_error,
827 &dev_attr_fw_version,
828 &dev_attr_update_fw,
829 &dev_attr_aap_log,
830 &dev_attr_iop_log,
831 &dev_attr_fatal_log,
832 &dev_attr_gsm_log,
833 &dev_attr_max_out_io,
834 &dev_attr_max_devices,
835 &dev_attr_max_sg_list,
836 &dev_attr_sas_spec_support,
837 &dev_attr_logging_level,
838 &dev_attr_event_log_size,
839 &dev_attr_host_sas_address,
840 &dev_attr_bios_version,
841 &dev_attr_ib_log,
842 &dev_attr_ob_log,
843 &dev_attr_ila_version,
844 &dev_attr_inc_fw_ver,
845 NULL,
846 };
847
Linux with added FPC-III support