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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#include "pm8001_chips.h"
45
46/* scsi host attributes */
47
48/**
49 * pm8001_ctl_mpi_interface_rev_show - MPI interface revision number
50 * @cdev: pointer to embedded class device
51 * @attr: device attribute (unused)
52 * @buf: the buffer returned
53 *
54 * A sysfs 'read-only' shost attribute.
55 */
56static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
57 struct device_attribute *attr, char *buf)
58{
59 struct Scsi_Host *shost = class_to_shost(cdev);
60 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
61 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
62
63 if (pm8001_ha->chip_id == chip_8001) {
64 return sysfs_emit(buf, "%d\n",
65 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
66 } else {
67 return sysfs_emit(buf, "%d\n",
68 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
69 }
70}
71static
72DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
73
74/**
75 * controller_fatal_error_show - check controller is under fatal err
76 * @cdev: pointer to embedded class device
77 * @attr: device attribute (unused)
78 * @buf: the buffer returned
79 *
80 * A sysfs 'read-only' shost attribute.
81 */
82static ssize_t controller_fatal_error_show(struct device *cdev,
83 struct device_attribute *attr, char *buf)
84{
85 struct Scsi_Host *shost = class_to_shost(cdev);
86 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
87 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
88
89 return sysfs_emit(buf, "%d\n",
90 pm8001_ha->controller_fatal_error);
91}
92static DEVICE_ATTR_RO(controller_fatal_error);
93
94/**
95 * pm8001_ctl_fw_version_show - firmware version
96 * @cdev: pointer to embedded class device
97 * @attr: device attribute (unused)
98 * @buf: the buffer returned
99 *
100 * A sysfs 'read-only' shost attribute.
101 */
102static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
103 struct device_attribute *attr, char *buf)
104{
105 struct Scsi_Host *shost = class_to_shost(cdev);
106 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
107 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
108
109 if (pm8001_ha->chip_id == chip_8001) {
110 return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
111 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
112 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
113 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
114 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
115 } else {
116 return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
117 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
118 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
119 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
120 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev));
121 }
122}
123static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
124
125/**
126 * pm8001_ctl_ila_version_show - ila version
127 * @cdev: pointer to embedded class device
128 * @attr: device attribute (unused)
129 * @buf: the buffer returned
130 *
131 * A sysfs 'read-only' shost attribute.
132 */
133static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
134 struct device_attribute *attr, char *buf)
135{
136 struct Scsi_Host *shost = class_to_shost(cdev);
137 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
138 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
139
140 if (pm8001_ha->chip_id != chip_8001) {
141 return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
142 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
143 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
144 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
145 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version));
146 }
147 return 0;
148}
149static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
150
151/**
152 * pm8001_ctl_inactive_fw_version_show - Inactive firmware version number
153 * @cdev: pointer to embedded class device
154 * @attr: device attribute (unused)
155 * @buf: the buffer returned
156 *
157 * A sysfs 'read-only' shost attribute.
158 */
159static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
160 struct device_attribute *attr, char *buf)
161{
162 struct Scsi_Host *shost = class_to_shost(cdev);
163 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
164 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
165
166 if (pm8001_ha->chip_id != chip_8001) {
167 return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
168 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
169 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
170 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
171 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version));
172 }
173 return 0;
174}
175static
176DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
177
178/**
179 * pm8001_ctl_max_out_io_show - max outstanding io supported
180 * @cdev: pointer to embedded class device
181 * @attr: device attribute (unused)
182 * @buf: the buffer returned
183 *
184 * A sysfs 'read-only' shost attribute.
185 */
186static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
187 struct device_attribute *attr, char *buf)
188{
189 struct Scsi_Host *shost = class_to_shost(cdev);
190 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
191 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
192
193 if (pm8001_ha->chip_id == chip_8001) {
194 return sysfs_emit(buf, "%d\n",
195 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
196 } else {
197 return sysfs_emit(buf, "%d\n",
198 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
199 }
200}
201static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
202/**
203 * pm8001_ctl_max_devices_show - max devices support
204 * @cdev: pointer to embedded class device
205 * @attr: device attribute (unused)
206 * @buf: the buffer returned
207 *
208 * A sysfs 'read-only' shost attribute.
209 */
210static ssize_t pm8001_ctl_max_devices_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 if (pm8001_ha->chip_id == chip_8001) {
218 return sysfs_emit(buf, "%04d\n",
219 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16));
220 } else {
221 return sysfs_emit(buf, "%04d\n",
222 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16));
223 }
224}
225static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
226/**
227 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
228 * hardware limitation
229 * @cdev: pointer to embedded class device
230 * @attr: device attribute (unused)
231 * @buf: the buffer returned
232 *
233 * A sysfs 'read-only' shost attribute.
234 */
235static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
236 struct device_attribute *attr, char *buf)
237{
238 struct Scsi_Host *shost = class_to_shost(cdev);
239 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
240 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
241
242 if (pm8001_ha->chip_id == chip_8001) {
243 return sysfs_emit(buf, "%04d\n",
244 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF);
245 } else {
246 return sysfs_emit(buf, "%04d\n",
247 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF);
248 }
249}
250static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
251
252#define SAS_1_0 0x1
253#define SAS_1_1 0x2
254#define SAS_2_0 0x4
255
256static ssize_t
257show_sas_spec_support_status(unsigned int mode, char *buf)
258{
259 ssize_t len = 0;
260
261 if (mode & SAS_1_1)
262 len = sprintf(buf, "%s", "SAS1.1");
263 if (mode & SAS_2_0)
264 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
265 len += sprintf(buf + len, "\n");
266
267 return len;
268}
269
270/**
271 * pm8001_ctl_sas_spec_support_show - sas spec supported
272 * @cdev: pointer to embedded class device
273 * @attr: device attribute (unused)
274 * @buf: the buffer returned
275 *
276 * A sysfs 'read-only' shost attribute.
277 */
278static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
279 struct device_attribute *attr, char *buf)
280{
281 unsigned int mode;
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 /* fe000000 means supports SAS2.1 */
286 if (pm8001_ha->chip_id == chip_8001)
287 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
288 0xfe000000)>>25;
289 else
290 /* fe000000 means supports SAS2.1 */
291 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
292 0xfe000000)>>25;
293 return show_sas_spec_support_status(mode, buf);
294}
295static DEVICE_ATTR(sas_spec_support, S_IRUGO,
296 pm8001_ctl_sas_spec_support_show, NULL);
297
298/**
299 * pm8001_ctl_host_sas_address_show - sas address
300 * @cdev: pointer to embedded class device
301 * @attr: device attribute (unused)
302 * @buf: the buffer returned
303 *
304 * This is the controller sas address
305 *
306 * A sysfs 'read-only' shost attribute.
307 */
308static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
309 struct device_attribute *attr, char *buf)
310{
311 struct Scsi_Host *shost = class_to_shost(cdev);
312 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
313 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
314 return sysfs_emit(buf, "0x%016llx\n",
315 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
316}
317static DEVICE_ATTR(host_sas_address, S_IRUGO,
318 pm8001_ctl_host_sas_address_show, NULL);
319
320/**
321 * pm8001_ctl_logging_level_show - logging level
322 * @cdev: pointer to embedded class device
323 * @attr: device attribute (unused)
324 * @buf: the buffer returned
325 *
326 * A sysfs 'read/write' shost attribute.
327 */
328static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
329 struct device_attribute *attr, char *buf)
330{
331 struct Scsi_Host *shost = class_to_shost(cdev);
332 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
333 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
334
335 return sysfs_emit(buf, "%08xh\n", pm8001_ha->logging_level);
336}
337
338static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
339 struct device_attribute *attr, const char *buf, size_t count)
340{
341 struct Scsi_Host *shost = class_to_shost(cdev);
342 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
343 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
344 int val = 0;
345
346 if (sscanf(buf, "%x", &val) != 1)
347 return -EINVAL;
348
349 pm8001_ha->logging_level = val;
350 return strlen(buf);
351}
352
353static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
354 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
355/**
356 * pm8001_ctl_aap_log_show - aap1 event log
357 * @cdev: pointer to embedded class device
358 * @attr: device attribute (unused)
359 * @buf: the buffer returned
360 *
361 * A sysfs 'read-only' shost attribute.
362 */
363static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
364 struct device_attribute *attr, char *buf)
365{
366 struct Scsi_Host *shost = class_to_shost(cdev);
367 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
368 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
369 u8 *ptr = (u8 *)pm8001_ha->memoryMap.region[AAP1].virt_ptr;
370 int i;
371
372 char *str = buf;
373 int max = 2;
374 for (i = 0; i < max; i++) {
375 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
376 "0x%08x 0x%08x\n",
377 pm8001_ctl_aap1_memmap(ptr, i, 0),
378 pm8001_ctl_aap1_memmap(ptr, i, 4),
379 pm8001_ctl_aap1_memmap(ptr, i, 8),
380 pm8001_ctl_aap1_memmap(ptr, i, 12),
381 pm8001_ctl_aap1_memmap(ptr, i, 16),
382 pm8001_ctl_aap1_memmap(ptr, i, 20),
383 pm8001_ctl_aap1_memmap(ptr, i, 24),
384 pm8001_ctl_aap1_memmap(ptr, i, 28));
385 }
386
387 return str - buf;
388}
389static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
390/**
391 * pm8001_ctl_ib_queue_log_show - Out bound Queue log
392 * @cdev:pointer to embedded class device
393 * @attr: device attribute (unused)
394 * @buf: the buffer returned
395 *
396 * A sysfs 'read-only' shost attribute.
397 */
398static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
399 struct device_attribute *attr, char *buf)
400{
401 struct Scsi_Host *shost = class_to_shost(cdev);
402 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
403 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
404 int offset;
405 char *str = buf;
406 int start = 0;
407 u32 ib_offset = pm8001_ha->ib_offset;
408 u32 queue_size = pm8001_ha->max_q_num * PM8001_MPI_QUEUE * 128;
409#define IB_MEMMAP(c) \
410 (*(u32 *)((u8 *)pm8001_ha-> \
411 memoryMap.region[ib_offset].virt_ptr + \
412 pm8001_ha->evtlog_ib_offset + (c)))
413
414 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
415 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
416 start = start + 4;
417 }
418 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
419 if (((pm8001_ha->evtlog_ib_offset) % queue_size) == 0)
420 pm8001_ha->evtlog_ib_offset = 0;
421
422 return str - buf;
423}
424
425static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
426/**
427 * pm8001_ctl_ob_queue_log_show - Out bound Queue log
428 * @cdev:pointer to embedded class device
429 * @attr: device attribute (unused)
430 * @buf: the buffer returned
431 *
432 * A sysfs 'read-only' shost attribute.
433 */
434
435static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
436 struct device_attribute *attr, char *buf)
437{
438 struct Scsi_Host *shost = class_to_shost(cdev);
439 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
440 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
441 int offset;
442 char *str = buf;
443 int start = 0;
444 u32 ob_offset = pm8001_ha->ob_offset;
445 u32 queue_size = pm8001_ha->max_q_num * PM8001_MPI_QUEUE * 128;
446#define OB_MEMMAP(c) \
447 (*(u32 *)((u8 *)pm8001_ha-> \
448 memoryMap.region[ob_offset].virt_ptr + \
449 pm8001_ha->evtlog_ob_offset + (c)))
450
451 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
452 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
453 start = start + 4;
454 }
455 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
456 if (((pm8001_ha->evtlog_ob_offset) % queue_size) == 0)
457 pm8001_ha->evtlog_ob_offset = 0;
458
459 return str - buf;
460}
461static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
462/**
463 * pm8001_ctl_bios_version_show - Bios version Display
464 * @cdev:pointer to embedded class device
465 * @attr: device attribute (unused)
466 * @buf:the buffer returned
467 *
468 * A sysfs 'read-only' shost attribute.
469 */
470static 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}
500static 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 */
509static 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 sysfs_emit(buf, "%d\n",
517 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
518}
519static DEVICE_ATTR_RO(event_log_size);
520/**
521 * pm8001_ctl_iop_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 */
528static 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}
556static 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
567static 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
576static 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 */
586static 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}
594static DEVICE_ATTR_RO(non_fatal_log);
595
596static 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 sysfs_emit(buf, "%08x\n",
604 pm8001_ha->non_fatal_count);
605}
606
607static 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}
621static 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 *
629 * A sysfs 'read-only' shost attribute.
630 */
631static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
632 struct device_attribute *attr, char *buf)
633{
634 ssize_t count;
635
636 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
637 return count;
638}
639
640static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
641
642#define FLASH_CMD_NONE 0x00
643#define FLASH_CMD_UPDATE 0x01
644#define FLASH_CMD_SET_NVMD 0x02
645
646struct flash_command {
647 u8 command[8];
648 int code;
649};
650
651static const struct flash_command flash_command_table[] = {
652 {"set_nvmd", FLASH_CMD_SET_NVMD},
653 {"update", FLASH_CMD_UPDATE},
654 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
655};
656
657struct error_fw {
658 char *reason;
659 int err_code;
660};
661
662static const struct error_fw flash_error_table[] = {
663 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
664 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
665 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
666 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
667 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
668 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
669 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
670 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
671 {"Flash in progress", FLASH_IN_PROGRESS},
672 {"Image file size Error", FAIL_FILE_SIZE},
673 {"Input parameter error", FAIL_PARAMETERS},
674 {"Out of memory", FAIL_OUT_MEMORY},
675 {"OK", 0} /* Last entry err_code = 0. */
676};
677
678static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
679{
680 struct pm8001_ioctl_payload *payload;
681 DECLARE_COMPLETION_ONSTACK(completion);
682 u8 *ioctlbuffer;
683 u32 ret;
684 u32 length = 1024 * 5 + sizeof(*payload) - 1;
685
686 if (pm8001_ha->fw_image->size > 4096) {
687 pm8001_ha->fw_status = FAIL_FILE_SIZE;
688 return -EFAULT;
689 }
690
691 ioctlbuffer = kzalloc(length, GFP_KERNEL);
692 if (!ioctlbuffer) {
693 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
694 return -ENOMEM;
695 }
696 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
697 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
698 pm8001_ha->fw_image->size);
699 payload->wr_length = pm8001_ha->fw_image->size;
700 payload->id = 0;
701 payload->minor_function = 0x1;
702 pm8001_ha->nvmd_completion = &completion;
703 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
704 if (ret) {
705 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
706 goto out;
707 }
708 wait_for_completion(&completion);
709out:
710 kfree(ioctlbuffer);
711 return ret;
712}
713
714static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
715{
716 struct pm8001_ioctl_payload *payload;
717 DECLARE_COMPLETION_ONSTACK(completion);
718 u8 *ioctlbuffer;
719 struct fw_control_info *fwControl;
720 __be32 partitionSizeTmp;
721 u32 partitionSize;
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 u32 fc_len;
728 u8 *read_buf;
729
730 if (pm8001_ha->fw_image->size < 28) {
731 pm8001_ha->fw_status = FAIL_FILE_SIZE;
732 return -EFAULT;
733 }
734 ioctlbuffer = kzalloc(length, GFP_KERNEL);
735 if (!ioctlbuffer) {
736 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
737 return -ENOMEM;
738 }
739 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
740 while (sizeRead < pm8001_ha->fw_image->size) {
741 partitionSizeTmp =
742 *(__be32 *)((u8 *)&image_hdr->image_length + sizeRead);
743 partitionSize = be32_to_cpu(partitionSizeTmp);
744 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
745 IOCTL_BUF_SIZE);
746 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
747 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
748 payload->wr_length = 1024*16;
749 payload->id = 0;
750 fwControl =
751 (struct fw_control_info *)&payload->func_specific;
752 fwControl->len = IOCTL_BUF_SIZE; /* IN */
753 fwControl->size = partitionSize + HEADER_LEN;/* IN */
754 fwControl->retcode = 0;/* OUT */
755 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
756
757 /*
758 * for the last chunk of data in case file size is
759 * not even with 4k, load only the rest
760 */
761
762 read_buf = (u8 *)pm8001_ha->fw_image->data + sizeRead;
763 fc_len = (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
764
765 if (loopcount - loopNumber == 1 && fc_len) {
766 fwControl->len = fc_len;
767 memcpy((u8 *)fwControl->buffer, read_buf, fc_len);
768 sizeRead += fc_len;
769 } else {
770 memcpy((u8 *)fwControl->buffer, read_buf, IOCTL_BUF_SIZE);
771 sizeRead += IOCTL_BUF_SIZE;
772 }
773
774 pm8001_ha->nvmd_completion = &completion;
775 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
776 if (ret) {
777 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
778 goto out;
779 }
780 wait_for_completion(&completion);
781 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
782 pm8001_ha->fw_status = fwControl->retcode;
783 ret = -EFAULT;
784 goto out;
785 }
786 }
787 }
788out:
789 kfree(ioctlbuffer);
790 return ret;
791}
792static ssize_t pm8001_store_update_fw(struct device *cdev,
793 struct device_attribute *attr,
794 const char *buf, size_t count)
795{
796 struct Scsi_Host *shost = class_to_shost(cdev);
797 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
798 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
799 char *cmd_ptr, *filename_ptr;
800 int res, i;
801 int flash_command = FLASH_CMD_NONE;
802 int ret;
803
804 if (!capable(CAP_SYS_ADMIN))
805 return -EACCES;
806
807 /* this test protects us from running two flash processes at once,
808 * so we should start with this test */
809 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
810 return -EINPROGRESS;
811 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
812
813 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
814 if (!cmd_ptr) {
815 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
816 return -ENOMEM;
817 }
818
819 filename_ptr = cmd_ptr + count;
820 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
821 if (res != 2) {
822 pm8001_ha->fw_status = FAIL_PARAMETERS;
823 ret = -EINVAL;
824 goto out;
825 }
826
827 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
828 if (!memcmp(flash_command_table[i].command,
829 cmd_ptr, strlen(cmd_ptr))) {
830 flash_command = flash_command_table[i].code;
831 break;
832 }
833 }
834 if (flash_command == FLASH_CMD_NONE) {
835 pm8001_ha->fw_status = FAIL_PARAMETERS;
836 ret = -EINVAL;
837 goto out;
838 }
839
840 ret = request_firmware(&pm8001_ha->fw_image,
841 filename_ptr,
842 pm8001_ha->dev);
843
844 if (ret) {
845 pm8001_dbg(pm8001_ha, FAIL,
846 "Failed to load firmware image file %s, error %d\n",
847 filename_ptr, ret);
848 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
849 goto out;
850 }
851
852 if (FLASH_CMD_UPDATE == flash_command)
853 ret = pm8001_update_flash(pm8001_ha);
854 else
855 ret = pm8001_set_nvmd(pm8001_ha);
856
857 release_firmware(pm8001_ha->fw_image);
858out:
859 kfree(cmd_ptr);
860
861 if (ret)
862 return ret;
863
864 pm8001_ha->fw_status = FLASH_OK;
865 return count;
866}
867
868static ssize_t pm8001_show_update_fw(struct device *cdev,
869 struct device_attribute *attr, char *buf)
870{
871 int i;
872 struct Scsi_Host *shost = class_to_shost(cdev);
873 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
874 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
875
876 for (i = 0; flash_error_table[i].err_code != 0; i++) {
877 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
878 break;
879 }
880 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
881 pm8001_ha->fw_status = FLASH_OK;
882
883 return sysfs_emit(buf, "status=%x %s\n",
884 flash_error_table[i].err_code,
885 flash_error_table[i].reason);
886}
887static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
888 pm8001_show_update_fw, pm8001_store_update_fw);
889
890static const char *const mpiStateText[] = {
891 "MPI is not initialized",
892 "MPI is successfully initialized",
893 "MPI termination is in progress",
894 "MPI initialization failed with error in [31:16]"
895};
896
897/**
898 * ctl_mpi_state_show - controller MPI state check
899 * @cdev: pointer to embedded class device
900 * @attr: device attribute (unused)
901 * @buf: the buffer returned
902 *
903 * A sysfs 'read-only' shost attribute.
904 */
905static ssize_t ctl_mpi_state_show(struct device *cdev,
906 struct device_attribute *attr, char *buf)
907{
908 struct Scsi_Host *shost = class_to_shost(cdev);
909 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
910 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
911 unsigned int mpidw0;
912
913 mpidw0 = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 0);
914 return sysfs_emit(buf, "%s\n", mpiStateText[mpidw0 & 0x0003]);
915}
916static DEVICE_ATTR_RO(ctl_mpi_state);
917
918/**
919 * ctl_hmi_error_show - controller MPI initialization fails
920 * @cdev: pointer to embedded class device
921 * @attr: device attribute (unused)
922 * @buf: the buffer returned
923 *
924 * A sysfs 'read-only' shost attribute.
925 */
926static ssize_t ctl_hmi_error_show(struct device *cdev,
927 struct device_attribute *attr, char *buf)
928{
929 struct Scsi_Host *shost = class_to_shost(cdev);
930 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
931 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
932 unsigned int mpidw0;
933
934 mpidw0 = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 0);
935 return sysfs_emit(buf, "0x%08x\n", (mpidw0 >> 16));
936}
937static DEVICE_ATTR_RO(ctl_hmi_error);
938
939/**
940 * ctl_raae_count_show - controller raae count check
941 * @cdev: pointer to embedded class device
942 * @attr: device attribute (unused)
943 * @buf: the buffer returned
944 *
945 * A sysfs 'read-only' shost attribute.
946 */
947static ssize_t ctl_raae_count_show(struct device *cdev,
948 struct device_attribute *attr, char *buf)
949{
950 struct Scsi_Host *shost = class_to_shost(cdev);
951 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
952 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
953 unsigned int raaecnt;
954
955 raaecnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 12);
956 return sysfs_emit(buf, "0x%08x\n", raaecnt);
957}
958static DEVICE_ATTR_RO(ctl_raae_count);
959
960/**
961 * ctl_iop0_count_show - controller iop0 count check
962 * @cdev: pointer to embedded class device
963 * @attr: device attribute (unused)
964 * @buf: the buffer returned
965 *
966 * A sysfs 'read-only' shost attribute.
967 */
968static ssize_t ctl_iop0_count_show(struct device *cdev,
969 struct device_attribute *attr, char *buf)
970{
971 struct Scsi_Host *shost = class_to_shost(cdev);
972 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
973 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
974 unsigned int iop0cnt;
975
976 iop0cnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 16);
977 return sysfs_emit(buf, "0x%08x\n", iop0cnt);
978}
979static DEVICE_ATTR_RO(ctl_iop0_count);
980
981/**
982 * ctl_iop1_count_show - controller iop1 count check
983 * @cdev: pointer to embedded class device
984 * @attr: device attribute (unused)
985 * @buf: the buffer returned
986 *
987 * A sysfs 'read-only' shost attribute.
988 */
989static ssize_t ctl_iop1_count_show(struct device *cdev,
990 struct device_attribute *attr, char *buf)
991{
992 struct Scsi_Host *shost = class_to_shost(cdev);
993 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
994 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
995 unsigned int iop1cnt;
996
997 iop1cnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 20);
998 return sysfs_emit(buf, "0x%08x\n", iop1cnt);
999
1000}
1001static DEVICE_ATTR_RO(ctl_iop1_count);
1002
1003static struct attribute *pm8001_host_attrs[] = {
1004 &dev_attr_interface_rev.attr,
1005 &dev_attr_controller_fatal_error.attr,
1006 &dev_attr_fw_version.attr,
1007 &dev_attr_update_fw.attr,
1008 &dev_attr_aap_log.attr,
1009 &dev_attr_iop_log.attr,
1010 &dev_attr_fatal_log.attr,
1011 &dev_attr_non_fatal_log.attr,
1012 &dev_attr_non_fatal_count.attr,
1013 &dev_attr_gsm_log.attr,
1014 &dev_attr_max_out_io.attr,
1015 &dev_attr_max_devices.attr,
1016 &dev_attr_max_sg_list.attr,
1017 &dev_attr_sas_spec_support.attr,
1018 &dev_attr_logging_level.attr,
1019 &dev_attr_event_log_size.attr,
1020 &dev_attr_host_sas_address.attr,
1021 &dev_attr_bios_version.attr,
1022 &dev_attr_ib_log.attr,
1023 &dev_attr_ob_log.attr,
1024 &dev_attr_ila_version.attr,
1025 &dev_attr_inc_fw_ver.attr,
1026 &dev_attr_ctl_mpi_state.attr,
1027 &dev_attr_ctl_hmi_error.attr,
1028 &dev_attr_ctl_raae_count.attr,
1029 &dev_attr_ctl_iop0_count.attr,
1030 &dev_attr_ctl_iop1_count.attr,
1031 NULL,
1032};
1033
1034static const struct attribute_group pm8001_host_attr_group = {
1035 .attrs = pm8001_host_attrs
1036};
1037
1038const struct attribute_group *pm8001_host_groups[] = {
1039 &pm8001_host_attr_group,
1040 NULL
1041};