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[linux-2.6-block.git] / drivers / scsi / pm8001 / pm8001_ctl.c
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dbf9bfe6 1/*
e5742101 2 * PMC-Sierra 8001/8081/8088/8089 SAS/SATA based host adapters driver
dbf9bfe6 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>
5a0e3ad6 41#include <linux/slab.h>
dbf9bfe6 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 */
54static 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
e5742101
S		 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 }
dbf9bfe6 68}
69static
70DEVICE_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 */
79static 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
e5742101
S		 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 }
dbf9bfe6 99}
100static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
24fff017
V		 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 */
109static 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}
125static 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 */
134static 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}
150static
151DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
152
dbf9bfe6 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 */
160static 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
e5742101
S		 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 }
dbf9bfe6 174}
175static 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 */
183static 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
e5742101
S		 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 }
dbf9bfe6 199}
200static 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 */
209static 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
e5742101
S		 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 }
dbf9bfe6 225}
226static 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
232static ssize_t
233show_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 */
253static 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;
e5742101
S		 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;
dbf9bfe6 268 return show_sas_spec_support_status(mode, buf);
269}
270static 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 */
282static 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}
291static 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 */
301static 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}
310static 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
325static 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 */
334static 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}
362static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
d078b511
AKS		 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 */
369static 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;
859b5d10
V		 378#define IB_MEMMAP(c) \
379 (*(u32 *)((u8 *)pm8001_ha-> \
380 memoryMap.region[IB].virt_ptr + \
d078b511
AKS		 381 pm8001_ha->evtlog_ib_offset + (c)))
382
383 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
859b5d10 384 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
d078b511
AKS		 385 start = start + 4;
386 }
387 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
859b5d10 388 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
d078b511
AKS		 389 pm8001_ha->evtlog_ib_offset = 0;
390
391 return str - buf;
392}
393
394static 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
402static 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;
859b5d10
V		 411#define OB_MEMMAP(c) \
412 (*(u32 *)((u8 *)pm8001_ha-> \
413 memoryMap.region[OB].virt_ptr + \
d078b511
AKS		 414 pm8001_ha->evtlog_ob_offset + (c)))
415
416 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
859b5d10 417 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
d078b511
AKS		 418 start = start + 4;
419 }
420 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
859b5d10 421 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
d078b511
AKS		 422 pm8001_ha->evtlog_ob_offset = 0;
423
424 return str - buf;
425}
426static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
966fdcff
AKS		 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 */
433static 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;
966fdcff
AKS		 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);
b42939aa
ST		 449 if (!payload.func_specific)
450 return -ENOMEM;
5b4ce882
TH		 451 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
452 kfree(payload.func_specific);
453 return -ENOMEM;
454 }
966fdcff 455 wait_for_completion(&completion);
966fdcff
AKS		 456 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
457 bios_index++)
458 str += sprintf(str, "%c",
9e032845 459 *(payload.func_specific+bios_index));
b42939aa 460 kfree(payload.func_specific);
966fdcff
AKS		 461 return str - buf;
462}
463static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
dbf9bfe6 464/**
465 * pm8001_ctl_aap_log_show - IOP event log
466 * @cdev: pointer to embedded class device
467 * @buf: the buffer returned
468 *
469 * A sysfs 'read-only' shost attribute.
470 */
471static ssize_t pm8001_ctl_iop_log_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#define IOP_MEMMAP(r, c) \
478 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \
479 + (c)))
480 int i;
481 char *str = buf;
482 int max = 2;
483 for (i = 0; i < max; i++) {
484 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
485 "0x%08x 0x%08x\n",
486 IOP_MEMMAP(i, 0),
487 IOP_MEMMAP(i, 4),
488 IOP_MEMMAP(i, 8),
489 IOP_MEMMAP(i, 12),
490 IOP_MEMMAP(i, 16),
491 IOP_MEMMAP(i, 20),
492 IOP_MEMMAP(i, 24),
493 IOP_MEMMAP(i, 28));
494 }
495
496 return str - buf;
497}
498static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
499
d078b511
AKS		 500/**
501 ** pm8001_ctl_fatal_log_show - fatal error logging
502 ** @cdev:pointer to embedded class device
503 ** @buf: the buffer returned
504 **
505 ** A sysfs 'read-only' shost attribute.
506 **/
507
508static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
509 struct device_attribute *attr, char *buf)
510{
cf370066 511 ssize_t count;
d078b511
AKS		 512
513 count = pm80xx_get_fatal_dump(cdev, attr, buf);
514 return count;
515}
516
517static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
518
519
520/**
521 ** pm8001_ctl_gsm_log_show - gsm dump collection
522 ** @cdev:pointer to embedded class device
523 ** @buf: the buffer returned
524 **A sysfs 'read-only' shost attribute.
525 **/
526static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
527 struct device_attribute *attr, char *buf)
528{
cf370066 529 ssize_t count;
d078b511
AKS		 530
531 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
532 return count;
533}
534
535static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
536
dbf9bfe6 537#define FLASH_CMD_NONE 0x00
538#define FLASH_CMD_UPDATE 0x01
539#define FLASH_CMD_SET_NVMD 0x02
540
541struct flash_command {
542 u8 command[8];
543 int code;
544};
545
546static struct flash_command flash_command_table[] =
547{
548 {"set_nvmd", FLASH_CMD_SET_NVMD},
549 {"update", FLASH_CMD_UPDATE},
550 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
551};
552
553struct error_fw {
554 char *reason;
555 int err_code;
556};
557
558static struct error_fw flash_error_table[] =
559{
560 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
561 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
562 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
563 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
564 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
565 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
566 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
567 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
568 {"Flash in progress", FLASH_IN_PROGRESS},
569 {"Image file size Error", FAIL_FILE_SIZE},
570 {"Input parameter error", FAIL_PARAMETERS},
571 {"Out of memory", FAIL_OUT_MEMORY},
572 {"OK", 0} /* Last entry err_code = 0. */
573};
574
575static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
576{
577 struct pm8001_ioctl_payload *payload;
578 DECLARE_COMPLETION_ONSTACK(completion);
6f8f31c7
TH		 579 u8 *ioctlbuffer;
580 u32 ret;
581 u32 length = 1024 * 5 + sizeof(*payload) - 1;
582
583 if (pm8001_ha->fw_image->size > 4096) {
584 pm8001_ha->fw_status = FAIL_FILE_SIZE;
585 return -EFAULT;
586 }
dbf9bfe6 587
dbf9bfe6 588 ioctlbuffer = kzalloc(length, GFP_KERNEL);
6f8f31c7
TH		 589 if (!ioctlbuffer) {
590 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
dbf9bfe6 591 return -ENOMEM;
dbf9bfe6 592 }
593 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
1c75a679 594 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
dbf9bfe6 595 pm8001_ha->fw_image->size);
596 payload->length = pm8001_ha->fw_image->size;
597 payload->id = 0;
1c75a679 598 payload->minor_function = 0x1;
dbf9bfe6 599 pm8001_ha->nvmd_completion = &completion;
600 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
6f8f31c7
TH		 601 if (ret) {
602 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
603 goto out;
604 }
dbf9bfe6 605 wait_for_completion(&completion);
606out:
607 kfree(ioctlbuffer);
608 return ret;
609}
610
611static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
612{
613 struct pm8001_ioctl_payload *payload;
614 DECLARE_COMPLETION_ONSTACK(completion);
6f8f31c7 615 u8 *ioctlbuffer;
dbf9bfe6 616 struct fw_control_info *fwControl;
dbf9bfe6 617 u32 partitionSize, partitionSizeTmp;
6f8f31c7 618 u32 loopNumber, loopcount;
dbf9bfe6 619 struct pm8001_fw_image_header *image_hdr;
6f8f31c7
TH		 620 u32 sizeRead = 0;
621 u32 ret = 0;
622 u32 length = 1024 * 16 + sizeof(*payload) - 1;
dbf9bfe6 623
6f8f31c7
TH		 624 if (pm8001_ha->fw_image->size < 28) {
625 pm8001_ha->fw_status = FAIL_FILE_SIZE;
626 return -EFAULT;
627 }
dbf9bfe6 628 ioctlbuffer = kzalloc(length, GFP_KERNEL);
6f8f31c7
TH		 629 if (!ioctlbuffer) {
630 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
dbf9bfe6 631 return -ENOMEM;
dbf9bfe6 632 }
6f8f31c7 633 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
dbf9bfe6 634 while (sizeRead < pm8001_ha->fw_image->size) {
635 partitionSizeTmp =
636 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
637 partitionSize = be32_to_cpu(partitionSizeTmp);
5bd355ee
TH		 638 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
639 IOCTL_BUF_SIZE);
dbf9bfe6 640 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
641 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
642 payload->length = 1024*16;
643 payload->id = 0;
644 fwControl =
1c75a679 645 (struct fw_control_info *)&payload->func_specific;
dbf9bfe6 646 fwControl->len = IOCTL_BUF_SIZE; /* IN */
647 fwControl->size = partitionSize + HEADER_LEN;/* IN */
648 fwControl->retcode = 0;/* OUT */
649 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
650
651 /* for the last chunk of data in case file size is not even with
652 4k, load only the rest*/
653 if (((loopcount-loopNumber) == 1) &&
654 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
655 fwControl->len =
656 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
657 memcpy((u8 *)fwControl->buffer,
658 (u8 *)pm8001_ha->fw_image->data + sizeRead,
659 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
660 sizeRead +=
661 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
662 } else {
663 memcpy((u8 *)fwControl->buffer,
664 (u8 *)pm8001_ha->fw_image->data + sizeRead,
665 IOCTL_BUF_SIZE);
666 sizeRead += IOCTL_BUF_SIZE;
667 }
668
669 pm8001_ha->nvmd_completion = &completion;
670 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
6f8f31c7
TH		 671 if (ret) {
672 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
673 goto out;
674 }
dbf9bfe6 675 wait_for_completion(&completion);
31d05e5b 676 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
6f8f31c7
TH		 677 pm8001_ha->fw_status = fwControl->retcode;
678 ret = -EFAULT;
679 goto out;
680 }
dbf9bfe6 681 }
682 }
dbf9bfe6 683out:
684 kfree(ioctlbuffer);
685 return ret;
686}
687static ssize_t pm8001_store_update_fw(struct device *cdev,
688 struct device_attribute *attr,
689 const char *buf, size_t count)
690{
691 struct Scsi_Host *shost = class_to_shost(cdev);
692 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
693 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
694 char *cmd_ptr, *filename_ptr;
695 int res, i;
696 int flash_command = FLASH_CMD_NONE;
6f8f31c7
TH		 697 int ret;
698
dbf9bfe6 699 if (!capable(CAP_SYS_ADMIN))
700 return -EACCES;
701
6f8f31c7
TH		 702 /* this test protects us from running two flash processes at once,
703 * so we should start with this test */
704 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
705 return -EINPROGRESS;
706 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
dbf9bfe6 707
6396bb22 708 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
dbf9bfe6 709 if (!cmd_ptr) {
6f8f31c7
TH		 710 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
711 return -ENOMEM;
dbf9bfe6 712 }
713
714 filename_ptr = cmd_ptr + count;
715 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
716 if (res != 2) {
6f8f31c7
TH		 717 pm8001_ha->fw_status = FAIL_PARAMETERS;
718 ret = -EINVAL;
719 goto out;
dbf9bfe6 720 }
721
722 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
723 if (!memcmp(flash_command_table[i].command,
724 cmd_ptr, strlen(cmd_ptr))) {
725 flash_command = flash_command_table[i].code;
726 break;
727 }
728 }
729 if (flash_command == FLASH_CMD_NONE) {
6f8f31c7
TH		 730 pm8001_ha->fw_status = FAIL_PARAMETERS;
731 ret = -EINVAL;
732 goto out;
dbf9bfe6 733 }
734
6f8f31c7 735 ret = request_firmware(&pm8001_ha->fw_image,
dbf9bfe6 736 filename_ptr,
737 pm8001_ha->dev);
738
6f8f31c7 739 if (ret) {
dbf9bfe6 740 PM8001_FAIL_DBG(pm8001_ha,
6f8f31c7
TH		 741 pm8001_printk(
742 "Failed to load firmware image file %s, error %d\n",
743 filename_ptr, ret));
744 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
745 goto out;
dbf9bfe6 746 }
747
6f8f31c7
TH		 748 if (FLASH_CMD_UPDATE == flash_command)
749 ret = pm8001_update_flash(pm8001_ha);
750 else
751 ret = pm8001_set_nvmd(pm8001_ha);
752
dbf9bfe6 753 release_firmware(pm8001_ha->fw_image);
dbf9bfe6 754out:
6f8f31c7 755 kfree(cmd_ptr);
dbf9bfe6 756
6f8f31c7
TH		 757 if (ret)
758 return ret;
759
760 pm8001_ha->fw_status = FLASH_OK;
761 return count;
dbf9bfe6 762}
763
764static ssize_t pm8001_show_update_fw(struct device *cdev,
765 struct device_attribute *attr, char *buf)
766{
767 int i;
768 struct Scsi_Host *shost = class_to_shost(cdev);
769 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
770 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
771
772 for (i = 0; flash_error_table[i].err_code != 0; i++) {
773 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
774 break;
775 }
776 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
777 pm8001_ha->fw_status = FLASH_OK;
778
779 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
780 flash_error_table[i].err_code,
781 flash_error_table[i].reason);
782}
783
332e2b4f 784static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
dbf9bfe6 785 pm8001_show_update_fw, pm8001_store_update_fw);
786struct device_attribute *pm8001_host_attrs[] = {
787 &dev_attr_interface_rev,
788 &dev_attr_fw_version,
789 &dev_attr_update_fw,
790 &dev_attr_aap_log,
791 &dev_attr_iop_log,
d078b511
AKS		 792 &dev_attr_fatal_log,
793 &dev_attr_gsm_log,
dbf9bfe6 794 &dev_attr_max_out_io,
795 &dev_attr_max_devices,
796 &dev_attr_max_sg_list,
797 &dev_attr_sas_spec_support,
798 &dev_attr_logging_level,
799 &dev_attr_host_sas_address,
966fdcff 800 &dev_attr_bios_version,
d078b511
AKS		 801 &dev_attr_ib_log,
802 &dev_attr_ob_log,
24fff017
V		 803 &dev_attr_ila_version,
804 &dev_attr_inc_fw_ver,
dbf9bfe6 805 NULL,
806};
807
Linux 6.x block layer and io_uring tree(s)