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1/*
2 * PMC-Sierra SPC 8001 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 */
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
61 return snprintf(buf, PAGE_SIZE, "%d\n",
62 pm8001_ha->main_cfg_tbl.interface_rev);
63}
64static
65DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
66
67/**
68 * pm8001_ctl_fw_version_show - firmware version
69 * @cdev: pointer to embedded class device
70 * @buf: the buffer returned
71 *
72 * A sysfs 'read-only' shost attribute.
73 */
74static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
75 struct device_attribute *attr, char *buf)
76{
77 struct Scsi_Host *shost = class_to_shost(cdev);
78 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
79 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
80
81 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
82 (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 24),
83 (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 16),
84 (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 8),
85 (u8)(pm8001_ha->main_cfg_tbl.firmware_rev));
86}
87static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
88/**
89 * pm8001_ctl_max_out_io_show - max outstanding io supported
90 * @cdev: pointer to embedded class device
91 * @buf: the buffer returned
92 *
93 * A sysfs 'read-only' shost attribute.
94 */
95static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
96 struct device_attribute *attr, char *buf)
97{
98 struct Scsi_Host *shost = class_to_shost(cdev);
99 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
100 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
101
102 return snprintf(buf, PAGE_SIZE, "%d\n",
103 pm8001_ha->main_cfg_tbl.max_out_io);
104}
105static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
106/**
107 * pm8001_ctl_max_devices_show - max devices support
108 * @cdev: pointer to embedded class device
109 * @buf: the buffer returned
110 *
111 * A sysfs 'read-only' shost attribute.
112 */
113static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
114 struct device_attribute *attr, char *buf)
115{
116 struct Scsi_Host *shost = class_to_shost(cdev);
117 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
118 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
119
120 return snprintf(buf, PAGE_SIZE, "%04d\n",
121 (u16)(pm8001_ha->main_cfg_tbl.max_sgl >> 16));
122}
123static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
124/**
125 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
126 * hardware limitation
127 * @cdev: pointer to embedded class device
128 * @buf: the buffer returned
129 *
130 * A sysfs 'read-only' shost attribute.
131 */
132static ssize_t pm8001_ctl_max_sg_list_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 return snprintf(buf, PAGE_SIZE, "%04d\n",
140 pm8001_ha->main_cfg_tbl.max_sgl & 0x0000FFFF);
141}
142static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
143
144#define SAS_1_0 0x1
145#define SAS_1_1 0x2
146#define SAS_2_0 0x4
147
148static ssize_t
149show_sas_spec_support_status(unsigned int mode, char *buf)
150{
151 ssize_t len = 0;
152
153 if (mode & SAS_1_1)
154 len = sprintf(buf, "%s", "SAS1.1");
155 if (mode & SAS_2_0)
156 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
157 len += sprintf(buf + len, "\n");
158
159 return len;
160}
161
162/**
163 * pm8001_ctl_sas_spec_support_show - sas spec supported
164 * @cdev: pointer to embedded class device
165 * @buf: the buffer returned
166 *
167 * A sysfs 'read-only' shost attribute.
168 */
169static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
170 struct device_attribute *attr, char *buf)
171{
172 unsigned int mode;
173 struct Scsi_Host *shost = class_to_shost(cdev);
174 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
175 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
176 mode = (pm8001_ha->main_cfg_tbl.ctrl_cap_flag & 0xfe000000)>>25;
177 return show_sas_spec_support_status(mode, buf);
178}
179static DEVICE_ATTR(sas_spec_support, S_IRUGO,
180 pm8001_ctl_sas_spec_support_show, NULL);
181
182/**
183 * pm8001_ctl_sas_address_show - sas address
184 * @cdev: pointer to embedded class device
185 * @buf: the buffer returned
186 *
187 * This is the controller sas address
188 *
189 * A sysfs 'read-only' shost attribute.
190 */
191static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
192 struct device_attribute *attr, char *buf)
193{
194 struct Scsi_Host *shost = class_to_shost(cdev);
195 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
196 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
197 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
198 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
199}
200static DEVICE_ATTR(host_sas_address, S_IRUGO,
201 pm8001_ctl_host_sas_address_show, NULL);
202
203/**
204 * pm8001_ctl_logging_level_show - logging level
205 * @cdev: pointer to embedded class device
206 * @buf: the buffer returned
207 *
208 * A sysfs 'read/write' shost attribute.
209 */
210static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
211 struct device_attribute *attr, char *buf)
212{
213 struct Scsi_Host *shost = class_to_shost(cdev);
214 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
215 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
216
217 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
218}
219static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
220 struct device_attribute *attr, const char *buf, size_t count)
221{
222 struct Scsi_Host *shost = class_to_shost(cdev);
223 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
224 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
225 int val = 0;
226
227 if (sscanf(buf, "%x", &val) != 1)
228 return -EINVAL;
229
230 pm8001_ha->logging_level = val;
231 return strlen(buf);
232}
233
234static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
235 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
236/**
237 * pm8001_ctl_aap_log_show - aap1 event log
238 * @cdev: pointer to embedded class device
239 * @buf: the buffer returned
240 *
241 * A sysfs 'read-only' shost attribute.
242 */
243static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
244 struct device_attribute *attr, char *buf)
245{
246 struct Scsi_Host *shost = class_to_shost(cdev);
247 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
248 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
249 int i;
250#define AAP1_MEMMAP(r, c) \
251 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
252 + (c)))
253
254 char *str = buf;
255 int max = 2;
256 for (i = 0; i < max; i++) {
257 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
258 "0x%08x 0x%08x\n",
259 AAP1_MEMMAP(i, 0),
260 AAP1_MEMMAP(i, 4),
261 AAP1_MEMMAP(i, 8),
262 AAP1_MEMMAP(i, 12),
263 AAP1_MEMMAP(i, 16),
264 AAP1_MEMMAP(i, 20),
265 AAP1_MEMMAP(i, 24),
266 AAP1_MEMMAP(i, 28));
267 }
268
269 return str - buf;
270}
271static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
272/**
273 * pm8001_ctl_aap_log_show - IOP event log
274 * @cdev: pointer to embedded class device
275 * @buf: the buffer returned
276 *
277 * A sysfs 'read-only' shost attribute.
278 */
279static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
280 struct device_attribute *attr, char *buf)
281{
282 struct Scsi_Host *shost = class_to_shost(cdev);
283 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
284 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
285#define IOP_MEMMAP(r, c) \
286 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \
287 + (c)))
288 int i;
289 char *str = buf;
290 int max = 2;
291 for (i = 0; i < max; i++) {
292 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
293 "0x%08x 0x%08x\n",
294 IOP_MEMMAP(i, 0),
295 IOP_MEMMAP(i, 4),
296 IOP_MEMMAP(i, 8),
297 IOP_MEMMAP(i, 12),
298 IOP_MEMMAP(i, 16),
299 IOP_MEMMAP(i, 20),
300 IOP_MEMMAP(i, 24),
301 IOP_MEMMAP(i, 28));
302 }
303
304 return str - buf;
305}
306static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
307
308#define FLASH_CMD_NONE 0x00
309#define FLASH_CMD_UPDATE 0x01
310#define FLASH_CMD_SET_NVMD 0x02
311
312struct flash_command {
313 u8 command[8];
314 int code;
315};
316
317static struct flash_command flash_command_table[] =
318{
319 {"set_nvmd", FLASH_CMD_SET_NVMD},
320 {"update", FLASH_CMD_UPDATE},
321 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
322};
323
324struct error_fw {
325 char *reason;
326 int err_code;
327};
328
329static struct error_fw flash_error_table[] =
330{
331 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
332 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
333 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
334 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
335 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
336 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
337 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
338 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
339 {"Flash in progress", FLASH_IN_PROGRESS},
340 {"Image file size Error", FAIL_FILE_SIZE},
341 {"Input parameter error", FAIL_PARAMETERS},
342 {"Out of memory", FAIL_OUT_MEMORY},
343 {"OK", 0} /* Last entry err_code = 0. */
344};
345
346static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
347{
348 struct pm8001_ioctl_payload *payload;
349 DECLARE_COMPLETION_ONSTACK(completion);
350 u8 *ioctlbuffer = NULL;
351 u32 length = 0;
352 u32 ret = 0;
353
354 length = 1024 * 5 + sizeof(*payload) - 1;
355 ioctlbuffer = kzalloc(length, GFP_KERNEL);
356 if (!ioctlbuffer)
357 return -ENOMEM;
358 if ((pm8001_ha->fw_image->size <= 0) ||
359 (pm8001_ha->fw_image->size > 4096)) {
360 ret = FAIL_FILE_SIZE;
361 goto out;
362 }
363 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
364 memcpy((u8 *)payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
365 pm8001_ha->fw_image->size);
366 payload->length = pm8001_ha->fw_image->size;
367 payload->id = 0;
368 pm8001_ha->nvmd_completion = &completion;
369 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
370 wait_for_completion(&completion);
371out:
372 kfree(ioctlbuffer);
373 return ret;
374}
375
376static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
377{
378 struct pm8001_ioctl_payload *payload;
379 DECLARE_COMPLETION_ONSTACK(completion);
380 u8 *ioctlbuffer = NULL;
381 u32 length = 0;
382 struct fw_control_info *fwControl;
383 u32 loopNumber, loopcount = 0;
384 u32 sizeRead = 0;
385 u32 partitionSize, partitionSizeTmp;
386 u32 ret = 0;
387 u32 partitionNumber = 0;
388 struct pm8001_fw_image_header *image_hdr;
389
390 length = 1024 * 16 + sizeof(*payload) - 1;
391 ioctlbuffer = kzalloc(length, GFP_KERNEL);
392 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
393 if (!ioctlbuffer)
394 return -ENOMEM;
395 if (pm8001_ha->fw_image->size < 28) {
396 ret = FAIL_FILE_SIZE;
397 goto out;
398 }
399
400 while (sizeRead < pm8001_ha->fw_image->size) {
401 partitionSizeTmp =
402 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
403 partitionSize = be32_to_cpu(partitionSizeTmp);
404 loopcount = (partitionSize + HEADER_LEN)/IOCTL_BUF_SIZE;
405 if (loopcount % IOCTL_BUF_SIZE)
406 loopcount++;
407 if (loopcount == 0)
408 loopcount++;
409 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
410 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
411 payload->length = 1024*16;
412 payload->id = 0;
413 fwControl =
414 (struct fw_control_info *)payload->func_specific;
415 fwControl->len = IOCTL_BUF_SIZE; /* IN */
416 fwControl->size = partitionSize + HEADER_LEN;/* IN */
417 fwControl->retcode = 0;/* OUT */
418 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
419
420 /* for the last chunk of data in case file size is not even with
421 4k, load only the rest*/
422 if (((loopcount-loopNumber) == 1) &&
423 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
424 fwControl->len =
425 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
426 memcpy((u8 *)fwControl->buffer,
427 (u8 *)pm8001_ha->fw_image->data + sizeRead,
428 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
429 sizeRead +=
430 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
431 } else {
432 memcpy((u8 *)fwControl->buffer,
433 (u8 *)pm8001_ha->fw_image->data + sizeRead,
434 IOCTL_BUF_SIZE);
435 sizeRead += IOCTL_BUF_SIZE;
436 }
437
438 pm8001_ha->nvmd_completion = &completion;
439 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
440 wait_for_completion(&completion);
441 if (ret || (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS)) {
442 ret = fwControl->retcode;
443 kfree(ioctlbuffer);
444 ioctlbuffer = NULL;
445 break;
446 }
447 }
448 if (ret)
449 break;
450 partitionNumber++;
451}
452out:
453 kfree(ioctlbuffer);
454 return ret;
455}
456static ssize_t pm8001_store_update_fw(struct device *cdev,
457 struct device_attribute *attr,
458 const char *buf, size_t count)
459{
460 struct Scsi_Host *shost = class_to_shost(cdev);
461 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
462 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
463 char *cmd_ptr, *filename_ptr;
464 int res, i;
465 int flash_command = FLASH_CMD_NONE;
466 int err = 0;
467 if (!capable(CAP_SYS_ADMIN))
468 return -EACCES;
469
470 cmd_ptr = kzalloc(count*2, GFP_KERNEL);
471
472 if (!cmd_ptr) {
473 err = FAIL_OUT_MEMORY;
474 goto out;
475 }
476
477 filename_ptr = cmd_ptr + count;
478 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
479 if (res != 2) {
480 err = FAIL_PARAMETERS;
481 goto out1;
482 }
483
484 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
485 if (!memcmp(flash_command_table[i].command,
486 cmd_ptr, strlen(cmd_ptr))) {
487 flash_command = flash_command_table[i].code;
488 break;
489 }
490 }
491 if (flash_command == FLASH_CMD_NONE) {
492 err = FAIL_PARAMETERS;
493 goto out1;
494 }
495
496 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) {
497 err = FLASH_IN_PROGRESS;
498 goto out1;
499 }
500 err = request_firmware(&pm8001_ha->fw_image,
501 filename_ptr,
502 pm8001_ha->dev);
503
504 if (err) {
505 PM8001_FAIL_DBG(pm8001_ha,
506 pm8001_printk("Failed to load firmware image file %s,"
507 " error %d\n", filename_ptr, err));
508 err = FAIL_OPEN_BIOS_FILE;
509 goto out1;
510 }
511
512 switch (flash_command) {
513 case FLASH_CMD_UPDATE:
514 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
515 err = pm8001_update_flash(pm8001_ha);
516 break;
517 case FLASH_CMD_SET_NVMD:
518 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
519 err = pm8001_set_nvmd(pm8001_ha);
520 break;
521 default:
522 pm8001_ha->fw_status = FAIL_PARAMETERS;
523 err = FAIL_PARAMETERS;
524 break;
525 }
526 release_firmware(pm8001_ha->fw_image);
527out1:
528 kfree(cmd_ptr);
529out:
530 pm8001_ha->fw_status = err;
531
532 if (!err)
533 return count;
534 else
535 return -err;
536}
537
538static ssize_t pm8001_show_update_fw(struct device *cdev,
539 struct device_attribute *attr, char *buf)
540{
541 int i;
542 struct Scsi_Host *shost = class_to_shost(cdev);
543 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
544 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
545
546 for (i = 0; flash_error_table[i].err_code != 0; i++) {
547 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
548 break;
549 }
550 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
551 pm8001_ha->fw_status = FLASH_OK;
552
553 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
554 flash_error_table[i].err_code,
555 flash_error_table[i].reason);
556}
557
558static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUGO,
559 pm8001_show_update_fw, pm8001_store_update_fw);
560struct device_attribute *pm8001_host_attrs[] = {
561 &dev_attr_interface_rev,
562 &dev_attr_fw_version,
563 &dev_attr_update_fw,
564 &dev_attr_aap_log,
565 &dev_attr_iop_log,
566 &dev_attr_max_out_io,
567 &dev_attr_max_devices,
568 &dev_attr_max_sg_list,
569 &dev_attr_sas_spec_support,
570 &dev_attr_logging_level,
571 &dev_attr_host_sas_address,
572 NULL,
573};
574
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 */
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
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}
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
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}
100static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
101/**
102 * pm8001_ctl_max_out_io_show - max outstanding io supported
103 * @cdev: pointer to embedded class device
104 * @buf: the buffer returned
105 *
106 * A sysfs 'read-only' shost attribute.
107 */
108static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
109 struct device_attribute *attr, char *buf)
110{
111 struct Scsi_Host *shost = class_to_shost(cdev);
112 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
113 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
114
115 if (pm8001_ha->chip_id == chip_8001) {
116 return snprintf(buf, PAGE_SIZE, "%d\n",
117 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
118 } else {
119 return snprintf(buf, PAGE_SIZE, "%d\n",
120 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
121 }
122}
123static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
124/**
125 * pm8001_ctl_max_devices_show - max devices support
126 * @cdev: pointer to embedded class device
127 * @buf: the buffer returned
128 *
129 * A sysfs 'read-only' shost attribute.
130 */
131static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
132 struct device_attribute *attr, char *buf)
133{
134 struct Scsi_Host *shost = class_to_shost(cdev);
135 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
136 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
137
138 if (pm8001_ha->chip_id == chip_8001) {
139 return snprintf(buf, PAGE_SIZE, "%04d\n",
140 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
141 );
142 } else {
143 return snprintf(buf, PAGE_SIZE, "%04d\n",
144 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
145 );
146 }
147}
148static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
149/**
150 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
151 * hardware limitation
152 * @cdev: pointer to embedded class device
153 * @buf: the buffer returned
154 *
155 * A sysfs 'read-only' shost attribute.
156 */
157static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
158 struct device_attribute *attr, char *buf)
159{
160 struct Scsi_Host *shost = class_to_shost(cdev);
161 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
162 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
163
164 if (pm8001_ha->chip_id == chip_8001) {
165 return snprintf(buf, PAGE_SIZE, "%04d\n",
166 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
167 );
168 } else {
169 return snprintf(buf, PAGE_SIZE, "%04d\n",
170 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
171 );
172 }
173}
174static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
175
176#define SAS_1_0 0x1
177#define SAS_1_1 0x2
178#define SAS_2_0 0x4
179
180static ssize_t
181show_sas_spec_support_status(unsigned int mode, char *buf)
182{
183 ssize_t len = 0;
184
185 if (mode & SAS_1_1)
186 len = sprintf(buf, "%s", "SAS1.1");
187 if (mode & SAS_2_0)
188 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
189 len += sprintf(buf + len, "\n");
190
191 return len;
192}
193
194/**
195 * pm8001_ctl_sas_spec_support_show - sas spec supported
196 * @cdev: pointer to embedded class device
197 * @buf: the buffer returned
198 *
199 * A sysfs 'read-only' shost attribute.
200 */
201static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
202 struct device_attribute *attr, char *buf)
203{
204 unsigned int mode;
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 /* fe000000 means supports SAS2.1 */
209 if (pm8001_ha->chip_id == chip_8001)
210 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
211 0xfe000000)>>25;
212 else
213 /* fe000000 means supports SAS2.1 */
214 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
215 0xfe000000)>>25;
216 return show_sas_spec_support_status(mode, buf);
217}
218static DEVICE_ATTR(sas_spec_support, S_IRUGO,
219 pm8001_ctl_sas_spec_support_show, NULL);
220
221/**
222 * pm8001_ctl_sas_address_show - sas address
223 * @cdev: pointer to embedded class device
224 * @buf: the buffer returned
225 *
226 * This is the controller sas address
227 *
228 * A sysfs 'read-only' shost attribute.
229 */
230static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
231 struct device_attribute *attr, char *buf)
232{
233 struct Scsi_Host *shost = class_to_shost(cdev);
234 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
235 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
236 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
237 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
238}
239static DEVICE_ATTR(host_sas_address, S_IRUGO,
240 pm8001_ctl_host_sas_address_show, NULL);
241
242/**
243 * pm8001_ctl_logging_level_show - logging level
244 * @cdev: pointer to embedded class device
245 * @buf: the buffer returned
246 *
247 * A sysfs 'read/write' shost attribute.
248 */
249static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
250 struct device_attribute *attr, char *buf)
251{
252 struct Scsi_Host *shost = class_to_shost(cdev);
253 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
254 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
255
256 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
257}
258static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
259 struct device_attribute *attr, const char *buf, size_t count)
260{
261 struct Scsi_Host *shost = class_to_shost(cdev);
262 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
263 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
264 int val = 0;
265
266 if (sscanf(buf, "%x", &val) != 1)
267 return -EINVAL;
268
269 pm8001_ha->logging_level = val;
270 return strlen(buf);
271}
272
273static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
274 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
275/**
276 * pm8001_ctl_aap_log_show - aap1 event log
277 * @cdev: pointer to embedded class device
278 * @buf: the buffer returned
279 *
280 * A sysfs 'read-only' shost attribute.
281 */
282static ssize_t pm8001_ctl_aap_log_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 int i;
289#define AAP1_MEMMAP(r, c) \
290 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
291 + (c)))
292
293 char *str = buf;
294 int max = 2;
295 for (i = 0; i < max; i++) {
296 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
297 "0x%08x 0x%08x\n",
298 AAP1_MEMMAP(i, 0),
299 AAP1_MEMMAP(i, 4),
300 AAP1_MEMMAP(i, 8),
301 AAP1_MEMMAP(i, 12),
302 AAP1_MEMMAP(i, 16),
303 AAP1_MEMMAP(i, 20),
304 AAP1_MEMMAP(i, 24),
305 AAP1_MEMMAP(i, 28));
306 }
307
308 return str - buf;
309}
310static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
311/**
312 * pm8001_ctl_ib_queue_log_show - Out bound Queue log
313 * @cdev:pointer to embedded class device
314 * @buf: the buffer returned
315 * A sysfs 'read-only' shost attribute.
316 */
317static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
318 struct device_attribute *attr, char *buf)
319{
320 struct Scsi_Host *shost = class_to_shost(cdev);
321 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
322 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
323 int offset;
324 char *str = buf;
325 int start = 0;
326#define IB_MEMMAP(c) \
327 (*(u32 *)((u8 *)pm8001_ha-> \
328 memoryMap.region[IB].virt_ptr + \
329 pm8001_ha->evtlog_ib_offset + (c)))
330
331 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
332 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
333 start = start + 4;
334 }
335 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
336 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
337 pm8001_ha->evtlog_ib_offset = 0;
338
339 return str - buf;
340}
341
342static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
343/**
344 * pm8001_ctl_ob_queue_log_show - Out bound Queue log
345 * @cdev:pointer to embedded class device
346 * @buf: the buffer returned
347 * A sysfs 'read-only' shost attribute.
348 */
349
350static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
351 struct device_attribute *attr, char *buf)
352{
353 struct Scsi_Host *shost = class_to_shost(cdev);
354 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
355 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
356 int offset;
357 char *str = buf;
358 int start = 0;
359#define OB_MEMMAP(c) \
360 (*(u32 *)((u8 *)pm8001_ha-> \
361 memoryMap.region[OB].virt_ptr + \
362 pm8001_ha->evtlog_ob_offset + (c)))
363
364 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
365 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
366 start = start + 4;
367 }
368 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
369 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
370 pm8001_ha->evtlog_ob_offset = 0;
371
372 return str - buf;
373}
374static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
375/**
376 * pm8001_ctl_bios_version_show - Bios version Display
377 * @cdev:pointer to embedded class device
378 * @buf:the buffer returned
379 * A sysfs 'read-only' shost attribute.
380 */
381static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
382 struct device_attribute *attr, char *buf)
383{
384 struct Scsi_Host *shost = class_to_shost(cdev);
385 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
386 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
387 char *str = buf;
388 void *virt_addr;
389 int bios_index;
390 DECLARE_COMPLETION_ONSTACK(completion);
391 struct pm8001_ioctl_payload payload;
392
393 pm8001_ha->nvmd_completion = &completion;
394 payload.minor_function = 7;
395 payload.offset = 0;
396 payload.length = 4096;
397 payload.func_specific = kzalloc(4096, GFP_KERNEL);
398 PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
399 wait_for_completion(&completion);
400 virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
401 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
402 bios_index++)
403 str += sprintf(str, "%c",
404 *((u8 *)((u8 *)virt_addr+bios_index)));
405 return str - buf;
406}
407static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
408/**
409 * pm8001_ctl_aap_log_show - IOP event log
410 * @cdev: pointer to embedded class device
411 * @buf: the buffer returned
412 *
413 * A sysfs 'read-only' shost attribute.
414 */
415static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
416 struct device_attribute *attr, char *buf)
417{
418 struct Scsi_Host *shost = class_to_shost(cdev);
419 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
420 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
421#define IOP_MEMMAP(r, c) \
422 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \
423 + (c)))
424 int i;
425 char *str = buf;
426 int max = 2;
427 for (i = 0; i < max; i++) {
428 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
429 "0x%08x 0x%08x\n",
430 IOP_MEMMAP(i, 0),
431 IOP_MEMMAP(i, 4),
432 IOP_MEMMAP(i, 8),
433 IOP_MEMMAP(i, 12),
434 IOP_MEMMAP(i, 16),
435 IOP_MEMMAP(i, 20),
436 IOP_MEMMAP(i, 24),
437 IOP_MEMMAP(i, 28));
438 }
439
440 return str - buf;
441}
442static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
443
444/**
445 ** pm8001_ctl_fatal_log_show - fatal error logging
446 ** @cdev:pointer to embedded class device
447 ** @buf: the buffer returned
448 **
449 ** A sysfs 'read-only' shost attribute.
450 **/
451
452static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
453 struct device_attribute *attr, char *buf)
454{
455 ssize_t count;
456
457 count = pm80xx_get_fatal_dump(cdev, attr, buf);
458 return count;
459}
460
461static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
462
463
464/**
465 ** pm8001_ctl_gsm_log_show - gsm dump collection
466 ** @cdev:pointer to embedded class device
467 ** @buf: the buffer returned
468 **A sysfs 'read-only' shost attribute.
469 **/
470static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
471 struct device_attribute *attr, char *buf)
472{
473 ssize_t count;
474
475 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
476 return count;
477}
478
479static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
480
481#define FLASH_CMD_NONE 0x00
482#define FLASH_CMD_UPDATE 0x01
483#define FLASH_CMD_SET_NVMD 0x02
484
485struct flash_command {
486 u8 command[8];
487 int code;
488};
489
490static struct flash_command flash_command_table[] =
491{
492 {"set_nvmd", FLASH_CMD_SET_NVMD},
493 {"update", FLASH_CMD_UPDATE},
494 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
495};
496
497struct error_fw {
498 char *reason;
499 int err_code;
500};
501
502static struct error_fw flash_error_table[] =
503{
504 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
505 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
506 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
507 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
508 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
509 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
510 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
511 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
512 {"Flash in progress", FLASH_IN_PROGRESS},
513 {"Image file size Error", FAIL_FILE_SIZE},
514 {"Input parameter error", FAIL_PARAMETERS},
515 {"Out of memory", FAIL_OUT_MEMORY},
516 {"OK", 0} /* Last entry err_code = 0. */
517};
518
519static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
520{
521 struct pm8001_ioctl_payload *payload;
522 DECLARE_COMPLETION_ONSTACK(completion);
523 u8 *ioctlbuffer = NULL;
524 u32 length = 0;
525 u32 ret = 0;
526
527 length = 1024 * 5 + sizeof(*payload) - 1;
528 ioctlbuffer = kzalloc(length, GFP_KERNEL);
529 if (!ioctlbuffer)
530 return -ENOMEM;
531 if ((pm8001_ha->fw_image->size <= 0) ||
532 (pm8001_ha->fw_image->size > 4096)) {
533 ret = FAIL_FILE_SIZE;
534 goto out;
535 }
536 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
537 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
538 pm8001_ha->fw_image->size);
539 payload->length = pm8001_ha->fw_image->size;
540 payload->id = 0;
541 payload->minor_function = 0x1;
542 pm8001_ha->nvmd_completion = &completion;
543 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
544 wait_for_completion(&completion);
545out:
546 kfree(ioctlbuffer);
547 return ret;
548}
549
550static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
551{
552 struct pm8001_ioctl_payload *payload;
553 DECLARE_COMPLETION_ONSTACK(completion);
554 u8 *ioctlbuffer = NULL;
555 u32 length = 0;
556 struct fw_control_info *fwControl;
557 u32 loopNumber, loopcount = 0;
558 u32 sizeRead = 0;
559 u32 partitionSize, partitionSizeTmp;
560 u32 ret = 0;
561 u32 partitionNumber = 0;
562 struct pm8001_fw_image_header *image_hdr;
563
564 length = 1024 * 16 + sizeof(*payload) - 1;
565 ioctlbuffer = kzalloc(length, GFP_KERNEL);
566 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
567 if (!ioctlbuffer)
568 return -ENOMEM;
569 if (pm8001_ha->fw_image->size < 28) {
570 ret = FAIL_FILE_SIZE;
571 goto out;
572 }
573
574 while (sizeRead < pm8001_ha->fw_image->size) {
575 partitionSizeTmp =
576 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
577 partitionSize = be32_to_cpu(partitionSizeTmp);
578 loopcount = (partitionSize + HEADER_LEN)/IOCTL_BUF_SIZE;
579 if (loopcount % IOCTL_BUF_SIZE)
580 loopcount++;
581 if (loopcount == 0)
582 loopcount++;
583 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
584 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
585 payload->length = 1024*16;
586 payload->id = 0;
587 fwControl =
588 (struct fw_control_info *)&payload->func_specific;
589 fwControl->len = IOCTL_BUF_SIZE; /* IN */
590 fwControl->size = partitionSize + HEADER_LEN;/* IN */
591 fwControl->retcode = 0;/* OUT */
592 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
593
594 /* for the last chunk of data in case file size is not even with
595 4k, load only the rest*/
596 if (((loopcount-loopNumber) == 1) &&
597 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
598 fwControl->len =
599 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
600 memcpy((u8 *)fwControl->buffer,
601 (u8 *)pm8001_ha->fw_image->data + sizeRead,
602 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
603 sizeRead +=
604 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
605 } else {
606 memcpy((u8 *)fwControl->buffer,
607 (u8 *)pm8001_ha->fw_image->data + sizeRead,
608 IOCTL_BUF_SIZE);
609 sizeRead += IOCTL_BUF_SIZE;
610 }
611
612 pm8001_ha->nvmd_completion = &completion;
613 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
614 wait_for_completion(&completion);
615 if (ret || (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS)) {
616 ret = fwControl->retcode;
617 kfree(ioctlbuffer);
618 ioctlbuffer = NULL;
619 break;
620 }
621 }
622 if (ret)
623 break;
624 partitionNumber++;
625}
626out:
627 kfree(ioctlbuffer);
628 return ret;
629}
630static ssize_t pm8001_store_update_fw(struct device *cdev,
631 struct device_attribute *attr,
632 const char *buf, size_t count)
633{
634 struct Scsi_Host *shost = class_to_shost(cdev);
635 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
636 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
637 char *cmd_ptr, *filename_ptr;
638 int res, i;
639 int flash_command = FLASH_CMD_NONE;
640 int err = 0;
641 if (!capable(CAP_SYS_ADMIN))
642 return -EACCES;
643
644 cmd_ptr = kzalloc(count*2, GFP_KERNEL);
645
646 if (!cmd_ptr) {
647 err = FAIL_OUT_MEMORY;
648 goto out;
649 }
650
651 filename_ptr = cmd_ptr + count;
652 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
653 if (res != 2) {
654 err = FAIL_PARAMETERS;
655 goto out1;
656 }
657
658 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
659 if (!memcmp(flash_command_table[i].command,
660 cmd_ptr, strlen(cmd_ptr))) {
661 flash_command = flash_command_table[i].code;
662 break;
663 }
664 }
665 if (flash_command == FLASH_CMD_NONE) {
666 err = FAIL_PARAMETERS;
667 goto out1;
668 }
669
670 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) {
671 err = FLASH_IN_PROGRESS;
672 goto out1;
673 }
674 err = request_firmware(&pm8001_ha->fw_image,
675 filename_ptr,
676 pm8001_ha->dev);
677
678 if (err) {
679 PM8001_FAIL_DBG(pm8001_ha,
680 pm8001_printk("Failed to load firmware image file %s,"
681 " error %d\n", filename_ptr, err));
682 err = FAIL_OPEN_BIOS_FILE;
683 goto out1;
684 }
685
686 switch (flash_command) {
687 case FLASH_CMD_UPDATE:
688 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
689 err = pm8001_update_flash(pm8001_ha);
690 break;
691 case FLASH_CMD_SET_NVMD:
692 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
693 err = pm8001_set_nvmd(pm8001_ha);
694 break;
695 default:
696 pm8001_ha->fw_status = FAIL_PARAMETERS;
697 err = FAIL_PARAMETERS;
698 break;
699 }
700 release_firmware(pm8001_ha->fw_image);
701out1:
702 kfree(cmd_ptr);
703out:
704 pm8001_ha->fw_status = err;
705
706 if (!err)
707 return count;
708 else
709 return -err;
710}
711
712static ssize_t pm8001_show_update_fw(struct device *cdev,
713 struct device_attribute *attr, char *buf)
714{
715 int i;
716 struct Scsi_Host *shost = class_to_shost(cdev);
717 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
718 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
719
720 for (i = 0; flash_error_table[i].err_code != 0; i++) {
721 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
722 break;
723 }
724 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
725 pm8001_ha->fw_status = FLASH_OK;
726
727 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
728 flash_error_table[i].err_code,
729 flash_error_table[i].reason);
730}
731
732static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUGO,
733 pm8001_show_update_fw, pm8001_store_update_fw);
734struct device_attribute *pm8001_host_attrs[] = {
735 &dev_attr_interface_rev,
736 &dev_attr_fw_version,
737 &dev_attr_update_fw,
738 &dev_attr_aap_log,
739 &dev_attr_iop_log,
740 &dev_attr_fatal_log,
741 &dev_attr_gsm_log,
742 &dev_attr_max_out_io,
743 &dev_attr_max_devices,
744 &dev_attr_max_sg_list,
745 &dev_attr_sas_spec_support,
746 &dev_attr_logging_level,
747 &dev_attr_host_sas_address,
748 &dev_attr_bios_version,
749 &dev_attr_ib_log,
750 &dev_attr_ob_log,
751 NULL,
752};
753