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Merge tag 'block-5.11-2021-01-10' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / drivers / scsi / pm8001 / pm8001_ctl.c
blob12035baf0997bd55a312b6f2e6b9043dc00dd613
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 * @attr: device attribute (unused)
51 * @buf: the buffer returned
52 *
53 * A sysfs 'read-only' shost attribute.
54 */
55 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
56 struct device_attribute *attr, char *buf)
57 {
58 struct Scsi_Host *shost = class_to_shost(cdev);
59 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
60 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
61
62 if (pm8001_ha->chip_id == chip_8001) {
63 return snprintf(buf, PAGE_SIZE, "%d\n",
64 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
65 } else {
66 return snprintf(buf, PAGE_SIZE, "%d\n",
67 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
68 }
69 }
70 static
71 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
72
73 /**
74 * controller_fatal_error_show - check controller is under fatal err
75 * @cdev: pointer to embedded class device
76 * @attr: device attribute (unused)
77 * @buf: the buffer returned
78 *
79 * A sysfs 'read only' shost attribute.
80 */
81 static ssize_t controller_fatal_error_show(struct device *cdev,
82 struct device_attribute *attr, char *buf)
83 {
84 struct Scsi_Host *shost = class_to_shost(cdev);
85 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
86 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
87
88 return snprintf(buf, PAGE_SIZE, "%d\n",
89 pm8001_ha->controller_fatal_error);
90 }
91 static DEVICE_ATTR_RO(controller_fatal_error);
92
93 /**
94 * pm8001_ctl_fw_version_show - firmware version
95 * @cdev: pointer to embedded class device
96 * @attr: device attribute (unused)
97 * @buf: the buffer returned
98 *
99 * A sysfs 'read-only' shost attribute.
100 */
101 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
102 struct device_attribute *attr, char *buf)
103 {
104 struct Scsi_Host *shost = class_to_shost(cdev);
105 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
106 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
107
108 if (pm8001_ha->chip_id == chip_8001) {
109 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
110 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
111 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
112 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
113 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
114 } else {
115 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
116 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
117 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
118 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
119 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev));
120 }
121 }
122 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
123
124 /**
125 * pm8001_ctl_ila_version_show - ila version
126 * @cdev: pointer to embedded class device
127 * @attr: device attribute (unused)
128 * @buf: the buffer returned
129 *
130 * A sysfs 'read-only' shost attribute.
131 */
132 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
133 struct device_attribute *attr, char *buf)
134 {
135 struct Scsi_Host *shost = class_to_shost(cdev);
136 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
137 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
138
139 if (pm8001_ha->chip_id != chip_8001) {
140 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
141 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
142 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
143 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
144 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version));
145 }
146 return 0;
147 }
148 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
149
150 /**
151 * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number
152 * @cdev: pointer to embedded class device
153 * @attr: device attribute (unused)
154 * @buf: the buffer returned
155 *
156 * A sysfs 'read-only' shost attribute.
157 */
158 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
159 struct device_attribute *attr, char *buf)
160 {
161 struct Scsi_Host *shost = class_to_shost(cdev);
162 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
163 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
164
165 if (pm8001_ha->chip_id != chip_8001) {
166 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
167 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
168 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
169 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
170 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version));
171 }
172 return 0;
173 }
174 static
175 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
176
177 /**
178 * pm8001_ctl_max_out_io_show - max outstanding io supported
179 * @cdev: pointer to embedded class device
180 * @attr: device attribute (unused)
181 * @buf: the buffer returned
182 *
183 * A sysfs 'read-only' shost attribute.
184 */
185 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
186 struct device_attribute *attr, char *buf)
187 {
188 struct Scsi_Host *shost = class_to_shost(cdev);
189 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
190 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
191
192 if (pm8001_ha->chip_id == chip_8001) {
193 return snprintf(buf, PAGE_SIZE, "%d\n",
194 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
195 } else {
196 return snprintf(buf, PAGE_SIZE, "%d\n",
197 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
198 }
199 }
200 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
201 /**
202 * pm8001_ctl_max_devices_show - max devices support
203 * @cdev: pointer to embedded class device
204 * @attr: device attribute (unused)
205 * @buf: the buffer returned
206 *
207 * A sysfs 'read-only' shost attribute.
208 */
209 static ssize_t pm8001_ctl_max_devices_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 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
219 );
220 } else {
221 return snprintf(buf, PAGE_SIZE, "%04d\n",
222 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
223 );
224 }
225 }
226 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
227 /**
228 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
229 * hardware limitation
230 * @cdev: pointer to embedded class device
231 * @attr: device attribute (unused)
232 * @buf: the buffer returned
233 *
234 * A sysfs 'read-only' shost attribute.
235 */
236 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
237 struct device_attribute *attr, char *buf)
238 {
239 struct Scsi_Host *shost = class_to_shost(cdev);
240 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
241 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
242
243 if (pm8001_ha->chip_id == chip_8001) {
244 return snprintf(buf, PAGE_SIZE, "%04d\n",
245 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
246 );
247 } else {
248 return snprintf(buf, PAGE_SIZE, "%04d\n",
249 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
250 );
251 }
252 }
253 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
254
255 #define SAS_1_0 0x1
256 #define SAS_1_1 0x2
257 #define SAS_2_0 0x4
258
259 static ssize_t
260 show_sas_spec_support_status(unsigned int mode, char *buf)
261 {
262 ssize_t len = 0;
263
264 if (mode & SAS_1_1)
265 len = sprintf(buf, "%s", "SAS1.1");
266 if (mode & SAS_2_0)
267 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
268 len += sprintf(buf + len, "\n");
269
270 return len;
271 }
272
273 /**
274 * pm8001_ctl_sas_spec_support_show - sas spec supported
275 * @cdev: pointer to embedded class device
276 * @attr: device attribute (unused)
277 * @buf: the buffer returned
278 *
279 * A sysfs 'read-only' shost attribute.
280 */
281 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
282 struct device_attribute *attr, char *buf)
283 {
284 unsigned int mode;
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 /* fe000000 means supports SAS2.1 */
289 if (pm8001_ha->chip_id == chip_8001)
290 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
291 0xfe000000)>>25;
292 else
293 /* fe000000 means supports SAS2.1 */
294 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
295 0xfe000000)>>25;
296 return show_sas_spec_support_status(mode, buf);
297 }
298 static DEVICE_ATTR(sas_spec_support, S_IRUGO,
299 pm8001_ctl_sas_spec_support_show, NULL);
300
301 /**
302 * pm8001_ctl_sas_address_show - sas address
303 * @cdev: pointer to embedded class device
304 * @attr: device attribute (unused)
305 * @buf: the buffer returned
306 *
307 * This is the controller sas address
308 *
309 * A sysfs 'read-only' shost attribute.
310 */
311 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
312 struct device_attribute *attr, char *buf)
313 {
314 struct Scsi_Host *shost = class_to_shost(cdev);
315 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
316 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
317 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
318 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
319 }
320 static DEVICE_ATTR(host_sas_address, S_IRUGO,
321 pm8001_ctl_host_sas_address_show, NULL);
322
323 /**
324 * pm8001_ctl_logging_level_show - logging level
325 * @cdev: pointer to embedded class device
326 * @attr: device attribute (unused)
327 * @buf: the buffer returned
328 *
329 * A sysfs 'read/write' shost attribute.
330 */
331 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
332 struct device_attribute *attr, char *buf)
333 {
334 struct Scsi_Host *shost = class_to_shost(cdev);
335 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
336 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
337
338 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
339 }
340
341 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
342 struct device_attribute *attr, const char *buf, size_t count)
343 {
344 struct Scsi_Host *shost = class_to_shost(cdev);
345 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
346 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
347 int val = 0;
348
349 if (sscanf(buf, "%x", &val) != 1)
350 return -EINVAL;
351
352 pm8001_ha->logging_level = val;
353 return strlen(buf);
354 }
355
356 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
357 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
358 /**
359 * pm8001_ctl_aap_log_show - aap1 event log
360 * @cdev: pointer to embedded class device
361 * @attr: device attribute (unused)
362 * @buf: the buffer returned
363 *
364 * A sysfs 'read-only' shost attribute.
365 */
366 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
367 struct device_attribute *attr, char *buf)
368 {
369 struct Scsi_Host *shost = class_to_shost(cdev);
370 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
371 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
372 int i;
373 #define AAP1_MEMMAP(r, c) \
374 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
375 + (c)))
376
377 char *str = buf;
378 int max = 2;
379 for (i = 0; i < max; i++) {
380 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
381 "0x%08x 0x%08x\n",
382 AAP1_MEMMAP(i, 0),
383 AAP1_MEMMAP(i, 4),
384 AAP1_MEMMAP(i, 8),
385 AAP1_MEMMAP(i, 12),
386 AAP1_MEMMAP(i, 16),
387 AAP1_MEMMAP(i, 20),
388 AAP1_MEMMAP(i, 24),
389 AAP1_MEMMAP(i, 28));
390 }
391
392 return str - buf;
393 }
394 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
395 /**
396 * pm8001_ctl_ib_queue_log_show - Out bound Queue log
397 * @cdev:pointer to embedded class device
398 * @attr: device attribute (unused)
399 * @buf: the buffer returned
400 * A sysfs 'read-only' shost attribute.
401 */
402 static ssize_t pm8001_ctl_ib_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 u32 ib_offset = pm8001_ha->ib_offset;
412 #define IB_MEMMAP(c) \
413 (*(u32 *)((u8 *)pm8001_ha-> \
414 memoryMap.region[ib_offset].virt_ptr + \
415 pm8001_ha->evtlog_ib_offset + (c)))
416
417 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
418 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
419 start = start + 4;
420 }
421 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
422 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
423 pm8001_ha->evtlog_ib_offset = 0;
424
425 return str - buf;
426 }
427
428 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
429 /**
430 * pm8001_ctl_ob_queue_log_show - Out bound Queue log
431 * @cdev:pointer to embedded class device
432 * @attr: device attribute (unused)
433 * @buf: the buffer returned
434 * A sysfs 'read-only' shost attribute.
435 */
436
437 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
438 struct device_attribute *attr, char *buf)
439 {
440 struct Scsi_Host *shost = class_to_shost(cdev);
441 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
442 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
443 int offset;
444 char *str = buf;
445 int start = 0;
446 u32 ob_offset = pm8001_ha->ob_offset;
447 #define OB_MEMMAP(c) \
448 (*(u32 *)((u8 *)pm8001_ha-> \
449 memoryMap.region[ob_offset].virt_ptr + \
450 pm8001_ha->evtlog_ob_offset + (c)))
451
452 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
453 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
454 start = start + 4;
455 }
456 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
457 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
458 pm8001_ha->evtlog_ob_offset = 0;
459
460 return str - buf;
461 }
462 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
463 /**
464 * pm8001_ctl_bios_version_show - Bios version Display
465 * @cdev:pointer to embedded class device
466 * @attr: device attribute (unused)
467 * @buf:the buffer returned
468 * A sysfs 'read-only' shost attribute.
469 */
470 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
471 struct device_attribute *attr, char *buf)
472 {
473 struct Scsi_Host *shost = class_to_shost(cdev);
474 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
475 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
476 char *str = buf;
477 int bios_index;
478 DECLARE_COMPLETION_ONSTACK(completion);
479 struct pm8001_ioctl_payload payload;
480
481 pm8001_ha->nvmd_completion = &completion;
482 payload.minor_function = 7;
483 payload.offset = 0;
484 payload.rd_length = 4096;
485 payload.func_specific = kzalloc(4096, GFP_KERNEL);
486 if (!payload.func_specific)
487 return -ENOMEM;
488 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
489 kfree(payload.func_specific);
490 return -ENOMEM;
491 }
492 wait_for_completion(&completion);
493 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
494 bios_index++)
495 str += sprintf(str, "%c",
496 *(payload.func_specific+bios_index));
497 kfree(payload.func_specific);
498 return str - buf;
499 }
500 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
501 /**
502 * event_log_size_show - event log size
503 * @cdev: pointer to embedded class device
504 * @attr: device attribute (unused)
505 * @buf: the buffer returned
506 *
507 * A sysfs read shost attribute.
508 */
509 static ssize_t event_log_size_show(struct device *cdev,
510 struct device_attribute *attr, char *buf)
511 {
512 struct Scsi_Host *shost = class_to_shost(cdev);
513 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
514 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
515
516 return snprintf(buf, PAGE_SIZE, "%d\n",
517 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
518 }
519 static DEVICE_ATTR_RO(event_log_size);
520 /**
521 * pm8001_ctl_aap_log_show - IOP event log
522 * @cdev: pointer to embedded class device
523 * @attr: device attribute (unused)
524 * @buf: the buffer returned
525 *
526 * A sysfs 'read-only' shost attribute.
527 */
528 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
529 struct device_attribute *attr, char *buf)
530 {
531 struct Scsi_Host *shost = class_to_shost(cdev);
532 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
533 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
534 char *str = buf;
535 u32 read_size =
536 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024;
537 static u32 start, end, count;
538 u32 max_read_times = 32;
539 u32 max_count = (read_size * 1024) / (max_read_times * 4);
540 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr;
541
542 if ((count % max_count) == 0) {
543 start = 0;
544 end = max_read_times;
545 count = 0;
546 } else {
547 start = end;
548 end = end + max_read_times;
549 }
550
551 for (; start < end; start++)
552 str += sprintf(str, "%08x ", *(temp+start));
553 count++;
554 return str - buf;
555 }
556 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
557
558 /**
559 ** pm8001_ctl_fatal_log_show - fatal error logging
560 ** @cdev:pointer to embedded class device
561 ** @attr: device attribute
562 ** @buf: the buffer returned
563 **
564 ** A sysfs 'read-only' shost attribute.
565 **/
566
567 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
568 struct device_attribute *attr, char *buf)
569 {
570 ssize_t count;
571
572 count = pm80xx_get_fatal_dump(cdev, attr, buf);
573 return count;
574 }
575
576 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
577
578 /**
579 ** non_fatal_log_show - non fatal error logging
580 ** @cdev:pointer to embedded class device
581 ** @attr: device attribute
582 ** @buf: the buffer returned
583 **
584 ** A sysfs 'read-only' shost attribute.
585 **/
586 static ssize_t non_fatal_log_show(struct device *cdev,
587 struct device_attribute *attr, char *buf)
588 {
589 u32 count;
590
591 count = pm80xx_get_non_fatal_dump(cdev, attr, buf);
592 return count;
593 }
594 static DEVICE_ATTR_RO(non_fatal_log);
595
596 static ssize_t non_fatal_count_show(struct device *cdev,
597 struct device_attribute *attr, char *buf)
598 {
599 struct Scsi_Host *shost = class_to_shost(cdev);
600 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
601 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
602
603 return snprintf(buf, PAGE_SIZE, "%08x",
604 pm8001_ha->non_fatal_count);
605 }
606
607 static ssize_t non_fatal_count_store(struct device *cdev,
608 struct device_attribute *attr, const char *buf, size_t count)
609 {
610 struct Scsi_Host *shost = class_to_shost(cdev);
611 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
612 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
613 int val = 0;
614
615 if (kstrtoint(buf, 16, &val) != 0)
616 return -EINVAL;
617
618 pm8001_ha->non_fatal_count = val;
619 return strlen(buf);
620 }
621 static DEVICE_ATTR_RW(non_fatal_count);
622
623 /**
624 ** pm8001_ctl_gsm_log_show - gsm dump collection
625 ** @cdev:pointer to embedded class device
626 ** @attr: device attribute (unused)
627 ** @buf: the buffer returned
628 ** A sysfs 'read-only' shost attribute.
629 **/
630 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
631 struct device_attribute *attr, char *buf)
632 {
633 ssize_t count;
634
635 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
636 return count;
637 }
638
639 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
640
641 #define FLASH_CMD_NONE 0x00
642 #define FLASH_CMD_UPDATE 0x01
643 #define FLASH_CMD_SET_NVMD 0x02
644
645 struct flash_command {
646 u8 command[8];
647 int code;
648 };
649
650 static struct flash_command flash_command_table[] =
651 {
652 {"set_nvmd", FLASH_CMD_SET_NVMD},
653 {"update", FLASH_CMD_UPDATE},
654 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
655 };
656
657 struct error_fw {
658 char *reason;
659 int err_code;
660 };
661
662 static struct error_fw flash_error_table[] =
663 {
664 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
665 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
666 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
667 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
668 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
669 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
670 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
671 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
672 {"Flash in progress", FLASH_IN_PROGRESS},
673 {"Image file size Error", FAIL_FILE_SIZE},
674 {"Input parameter error", FAIL_PARAMETERS},
675 {"Out of memory", FAIL_OUT_MEMORY},
676 {"OK", 0} /* Last entry err_code = 0. */
677 };
678
679 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
680 {
681 struct pm8001_ioctl_payload *payload;
682 DECLARE_COMPLETION_ONSTACK(completion);
683 u8 *ioctlbuffer;
684 u32 ret;
685 u32 length = 1024 * 5 + sizeof(*payload) - 1;
686
687 if (pm8001_ha->fw_image->size > 4096) {
688 pm8001_ha->fw_status = FAIL_FILE_SIZE;
689 return -EFAULT;
690 }
691
692 ioctlbuffer = kzalloc(length, GFP_KERNEL);
693 if (!ioctlbuffer) {
694 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
695 return -ENOMEM;
696 }
697 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
698 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
699 pm8001_ha->fw_image->size);
700 payload->wr_length = pm8001_ha->fw_image->size;
701 payload->id = 0;
702 payload->minor_function = 0x1;
703 pm8001_ha->nvmd_completion = &completion;
704 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
705 if (ret) {
706 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
707 goto out;
708 }
709 wait_for_completion(&completion);
710 out:
711 kfree(ioctlbuffer);
712 return ret;
713 }
714
715 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
716 {
717 struct pm8001_ioctl_payload *payload;
718 DECLARE_COMPLETION_ONSTACK(completion);
719 u8 *ioctlbuffer;
720 struct fw_control_info *fwControl;
721 u32 partitionSize, partitionSizeTmp;
722 u32 loopNumber, loopcount;
723 struct pm8001_fw_image_header *image_hdr;
724 u32 sizeRead = 0;
725 u32 ret = 0;
726 u32 length = 1024 * 16 + sizeof(*payload) - 1;
727
728 if (pm8001_ha->fw_image->size < 28) {
729 pm8001_ha->fw_status = FAIL_FILE_SIZE;
730 return -EFAULT;
731 }
732 ioctlbuffer = kzalloc(length, GFP_KERNEL);
733 if (!ioctlbuffer) {
734 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
735 return -ENOMEM;
736 }
737 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
738 while (sizeRead < pm8001_ha->fw_image->size) {
739 partitionSizeTmp =
740 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
741 partitionSize = be32_to_cpu(partitionSizeTmp);
742 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
743 IOCTL_BUF_SIZE);
744 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
745 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
746 payload->wr_length = 1024*16;
747 payload->id = 0;
748 fwControl =
749 (struct fw_control_info *)&payload->func_specific;
750 fwControl->len = IOCTL_BUF_SIZE; /* IN */
751 fwControl->size = partitionSize + HEADER_LEN;/* IN */
752 fwControl->retcode = 0;/* OUT */
753 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
754
755 /* for the last chunk of data in case file size is not even with
756 4k, load only the rest*/
757 if (((loopcount-loopNumber) == 1) &&
758 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
759 fwControl->len =
760 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
761 memcpy((u8 *)fwControl->buffer,
762 (u8 *)pm8001_ha->fw_image->data + sizeRead,
763 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
764 sizeRead +=
765 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
766 } else {
767 memcpy((u8 *)fwControl->buffer,
768 (u8 *)pm8001_ha->fw_image->data + sizeRead,
769 IOCTL_BUF_SIZE);
770 sizeRead += IOCTL_BUF_SIZE;
771 }
772
773 pm8001_ha->nvmd_completion = &completion;
774 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
775 if (ret) {
776 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
777 goto out;
778 }
779 wait_for_completion(&completion);
780 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
781 pm8001_ha->fw_status = fwControl->retcode;
782 ret = -EFAULT;
783 goto out;
784 }
785 }
786 }
787 out:
788 kfree(ioctlbuffer);
789 return ret;
790 }
791 static ssize_t pm8001_store_update_fw(struct device *cdev,
792 struct device_attribute *attr,
793 const char *buf, size_t count)
794 {
795 struct Scsi_Host *shost = class_to_shost(cdev);
796 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
797 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
798 char *cmd_ptr, *filename_ptr;
799 int res, i;
800 int flash_command = FLASH_CMD_NONE;
801 int ret;
802
803 if (!capable(CAP_SYS_ADMIN))
804 return -EACCES;
805
806 /* this test protects us from running two flash processes at once,
807 * so we should start with this test */
808 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
809 return -EINPROGRESS;
810 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
811
812 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
813 if (!cmd_ptr) {
814 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
815 return -ENOMEM;
816 }
817
818 filename_ptr = cmd_ptr + count;
819 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
820 if (res != 2) {
821 pm8001_ha->fw_status = FAIL_PARAMETERS;
822 ret = -EINVAL;
823 goto out;
824 }
825
826 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
827 if (!memcmp(flash_command_table[i].command,
828 cmd_ptr, strlen(cmd_ptr))) {
829 flash_command = flash_command_table[i].code;
830 break;
831 }
832 }
833 if (flash_command == FLASH_CMD_NONE) {
834 pm8001_ha->fw_status = FAIL_PARAMETERS;
835 ret = -EINVAL;
836 goto out;
837 }
838
839 ret = request_firmware(&pm8001_ha->fw_image,
840 filename_ptr,
841 pm8001_ha->dev);
842
843 if (ret) {
844 pm8001_dbg(pm8001_ha, FAIL,
845 "Failed to load firmware image file %s, error %d\n",
846 filename_ptr, ret);
847 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
848 goto out;
849 }
850
851 if (FLASH_CMD_UPDATE == flash_command)
852 ret = pm8001_update_flash(pm8001_ha);
853 else
854 ret = pm8001_set_nvmd(pm8001_ha);
855
856 release_firmware(pm8001_ha->fw_image);
857 out:
858 kfree(cmd_ptr);
859
860 if (ret)
861 return ret;
862
863 pm8001_ha->fw_status = FLASH_OK;
864 return count;
865 }
866
867 static ssize_t pm8001_show_update_fw(struct device *cdev,
868 struct device_attribute *attr, char *buf)
869 {
870 int i;
871 struct Scsi_Host *shost = class_to_shost(cdev);
872 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
873 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
874
875 for (i = 0; flash_error_table[i].err_code != 0; i++) {
876 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
877 break;
878 }
879 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
880 pm8001_ha->fw_status = FLASH_OK;
881
882 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
883 flash_error_table[i].err_code,
884 flash_error_table[i].reason);
885 }
886
887 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
888 pm8001_show_update_fw, pm8001_store_update_fw);
889 struct device_attribute *pm8001_host_attrs[] = {
890 &dev_attr_interface_rev,
891 &dev_attr_controller_fatal_error,
892 &dev_attr_fw_version,
893 &dev_attr_update_fw,
894 &dev_attr_aap_log,
895 &dev_attr_iop_log,
896 &dev_attr_fatal_log,
897 &dev_attr_non_fatal_log,
898 &dev_attr_non_fatal_count,
899 &dev_attr_gsm_log,
900 &dev_attr_max_out_io,
901 &dev_attr_max_devices,
902 &dev_attr_max_sg_list,
903 &dev_attr_sas_spec_support,
904 &dev_attr_logging_level,
905 &dev_attr_event_log_size,
906 &dev_attr_host_sas_address,
907 &dev_attr_bios_version,
908 &dev_attr_ib_log,
909 &dev_attr_ob_log,
910 &dev_attr_ila_version,
911 &dev_attr_inc_fw_ver,
912 NULL,
913 };
914
Linux with added FPC-III support