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 */
pm8001_ctl_mpi_interface_rev_show(struct device * cdev,struct device_attribute * attr,char * buf)56 static 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 snprintf(buf, PAGE_SIZE, "%d\n",
65 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
66 } else {
67 return snprintf(buf, PAGE_SIZE, "%d\n",
68 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
69 }
70 }
71 static
72 DEVICE_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 */
controller_fatal_error_show(struct device * cdev,struct device_attribute * attr,char * buf)82 static 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 snprintf(buf, PAGE_SIZE, "%d\n",
90 pm8001_ha->controller_fatal_error);
91 }
92 static 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 */
pm8001_ctl_fw_version_show(struct device * cdev,struct device_attribute * attr,char * buf)102 static 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 snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%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 }
123 static 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 */
pm8001_ctl_ila_version_show(struct device * cdev,struct device_attribute * attr,char * buf)133 static 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 snprintf(buf, PAGE_SIZE, "%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 }
149 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
150
151 /**
152 * pm8001_ctl_inactive_fw_version_show - Inacative 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 */
pm8001_ctl_inactive_fw_version_show(struct device * cdev,struct device_attribute * attr,char * buf)159 static 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 snprintf(buf, PAGE_SIZE, "%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 }
175 static
176 DEVICE_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 */
pm8001_ctl_max_out_io_show(struct device * cdev,struct device_attribute * attr,char * buf)186 static 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 snprintf(buf, PAGE_SIZE, "%d\n",
195 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
196 } else {
197 return snprintf(buf, PAGE_SIZE, "%d\n",
198 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
199 }
200 }
201 static 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 */
pm8001_ctl_max_devices_show(struct device * cdev,struct device_attribute * attr,char * buf)210 static 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 snprintf(buf, PAGE_SIZE, "%04d\n",
219 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
220 );
221 } else {
222 return snprintf(buf, PAGE_SIZE, "%04d\n",
223 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
224 );
225 }
226 }
227 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
228 /**
229 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
230 * hardware limitation
231 * @cdev: pointer to embedded class device
232 * @attr: device attribute (unused)
233 * @buf: the buffer returned
234 *
235 * A sysfs 'read-only' shost attribute.
236 */
pm8001_ctl_max_sg_list_show(struct device * cdev,struct device_attribute * attr,char * buf)237 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
238 struct device_attribute *attr, char *buf)
239 {
240 struct Scsi_Host *shost = class_to_shost(cdev);
241 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
242 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
243
244 if (pm8001_ha->chip_id == chip_8001) {
245 return snprintf(buf, PAGE_SIZE, "%04d\n",
246 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
247 );
248 } else {
249 return snprintf(buf, PAGE_SIZE, "%04d\n",
250 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
251 );
252 }
253 }
254 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
255
256 #define SAS_1_0 0x1
257 #define SAS_1_1 0x2
258 #define SAS_2_0 0x4
259
260 static ssize_t
show_sas_spec_support_status(unsigned int mode,char * buf)261 show_sas_spec_support_status(unsigned int mode, char *buf)
262 {
263 ssize_t len = 0;
264
265 if (mode & SAS_1_1)
266 len = sprintf(buf, "%s", "SAS1.1");
267 if (mode & SAS_2_0)
268 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
269 len += sprintf(buf + len, "\n");
270
271 return len;
272 }
273
274 /**
275 * pm8001_ctl_sas_spec_support_show - sas spec supported
276 * @cdev: pointer to embedded class device
277 * @attr: device attribute (unused)
278 * @buf: the buffer returned
279 *
280 * A sysfs 'read-only' shost attribute.
281 */
pm8001_ctl_sas_spec_support_show(struct device * cdev,struct device_attribute * attr,char * buf)282 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
283 struct device_attribute *attr, char *buf)
284 {
285 unsigned int mode;
286 struct Scsi_Host *shost = class_to_shost(cdev);
287 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
288 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
289 /* fe000000 means supports SAS2.1 */
290 if (pm8001_ha->chip_id == chip_8001)
291 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
292 0xfe000000)>>25;
293 else
294 /* fe000000 means supports SAS2.1 */
295 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
296 0xfe000000)>>25;
297 return show_sas_spec_support_status(mode, buf);
298 }
299 static DEVICE_ATTR(sas_spec_support, S_IRUGO,
300 pm8001_ctl_sas_spec_support_show, NULL);
301
302 /**
303 * pm8001_ctl_host_sas_address_show - sas address
304 * @cdev: pointer to embedded class device
305 * @attr: device attribute (unused)
306 * @buf: the buffer returned
307 *
308 * This is the controller sas address
309 *
310 * A sysfs 'read-only' shost attribute.
311 */
pm8001_ctl_host_sas_address_show(struct device * cdev,struct device_attribute * attr,char * buf)312 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
313 struct device_attribute *attr, char *buf)
314 {
315 struct Scsi_Host *shost = class_to_shost(cdev);
316 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
317 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
318 return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
319 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
320 }
321 static DEVICE_ATTR(host_sas_address, S_IRUGO,
322 pm8001_ctl_host_sas_address_show, NULL);
323
324 /**
325 * pm8001_ctl_logging_level_show - logging level
326 * @cdev: pointer to embedded class device
327 * @attr: device attribute (unused)
328 * @buf: the buffer returned
329 *
330 * A sysfs 'read/write' shost attribute.
331 */
pm8001_ctl_logging_level_show(struct device * cdev,struct device_attribute * attr,char * buf)332 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
333 struct device_attribute *attr, char *buf)
334 {
335 struct Scsi_Host *shost = class_to_shost(cdev);
336 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
337 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
338
339 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
340 }
341
pm8001_ctl_logging_level_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)342 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
343 struct device_attribute *attr, const char *buf, size_t count)
344 {
345 struct Scsi_Host *shost = class_to_shost(cdev);
346 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
347 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
348 int val = 0;
349
350 if (sscanf(buf, "%x", &val) != 1)
351 return -EINVAL;
352
353 pm8001_ha->logging_level = val;
354 return strlen(buf);
355 }
356
357 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
358 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
359 /**
360 * pm8001_ctl_aap_log_show - aap1 event log
361 * @cdev: pointer to embedded class device
362 * @attr: device attribute (unused)
363 * @buf: the buffer returned
364 *
365 * A sysfs 'read-only' shost attribute.
366 */
pm8001_ctl_aap_log_show(struct device * cdev,struct device_attribute * attr,char * buf)367 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
368 struct device_attribute *attr, char *buf)
369 {
370 struct Scsi_Host *shost = class_to_shost(cdev);
371 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
372 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
373 u8 *ptr = (u8 *)pm8001_ha->memoryMap.region[AAP1].virt_ptr;
374 int i;
375
376 char *str = buf;
377 int max = 2;
378 for (i = 0; i < max; i++) {
379 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
380 "0x%08x 0x%08x\n",
381 pm8001_ctl_aap1_memmap(ptr, i, 0),
382 pm8001_ctl_aap1_memmap(ptr, i, 4),
383 pm8001_ctl_aap1_memmap(ptr, i, 8),
384 pm8001_ctl_aap1_memmap(ptr, i, 12),
385 pm8001_ctl_aap1_memmap(ptr, i, 16),
386 pm8001_ctl_aap1_memmap(ptr, i, 20),
387 pm8001_ctl_aap1_memmap(ptr, i, 24),
388 pm8001_ctl_aap1_memmap(ptr, i, 28));
389 }
390
391 return str - buf;
392 }
393 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
394 /**
395 * pm8001_ctl_ib_queue_log_show - Out bound Queue log
396 * @cdev:pointer to embedded class device
397 * @attr: device attribute (unused)
398 * @buf: the buffer returned
399 * A sysfs 'read-only' shost attribute.
400 */
pm8001_ctl_ib_queue_log_show(struct device * cdev,struct device_attribute * attr,char * buf)401 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
402 struct device_attribute *attr, char *buf)
403 {
404 struct Scsi_Host *shost = class_to_shost(cdev);
405 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
406 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
407 int offset;
408 char *str = buf;
409 int start = 0;
410 u32 ib_offset = pm8001_ha->ib_offset;
411 #define IB_MEMMAP(c) \
412 (*(u32 *)((u8 *)pm8001_ha-> \
413 memoryMap.region[ib_offset].virt_ptr + \
414 pm8001_ha->evtlog_ib_offset + (c)))
415
416 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
417 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
418 start = start + 4;
419 }
420 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
421 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
422 pm8001_ha->evtlog_ib_offset = 0;
423
424 return str - buf;
425 }
426
427 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
428 /**
429 * pm8001_ctl_ob_queue_log_show - Out bound Queue log
430 * @cdev:pointer to embedded class device
431 * @attr: device attribute (unused)
432 * @buf: the buffer returned
433 * A sysfs 'read-only' shost attribute.
434 */
435
pm8001_ctl_ob_queue_log_show(struct device * cdev,struct device_attribute * attr,char * buf)436 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
437 struct device_attribute *attr, char *buf)
438 {
439 struct Scsi_Host *shost = class_to_shost(cdev);
440 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
441 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
442 int offset;
443 char *str = buf;
444 int start = 0;
445 u32 ob_offset = pm8001_ha->ob_offset;
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) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
457 pm8001_ha->evtlog_ob_offset = 0;
458
459 return str - buf;
460 }
461 static 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 * A sysfs 'read-only' shost attribute.
468 */
pm8001_ctl_bios_version_show(struct device * cdev,struct device_attribute * attr,char * buf)469 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
470 struct device_attribute *attr, char *buf)
471 {
472 struct Scsi_Host *shost = class_to_shost(cdev);
473 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
474 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
475 char *str = buf;
476 int bios_index;
477 DECLARE_COMPLETION_ONSTACK(completion);
478 struct pm8001_ioctl_payload payload;
479
480 pm8001_ha->nvmd_completion = &completion;
481 payload.minor_function = 7;
482 payload.offset = 0;
483 payload.rd_length = 4096;
484 payload.func_specific = kzalloc(4096, GFP_KERNEL);
485 if (!payload.func_specific)
486 return -ENOMEM;
487 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
488 kfree(payload.func_specific);
489 return -ENOMEM;
490 }
491 wait_for_completion(&completion);
492 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
493 bios_index++)
494 str += sprintf(str, "%c",
495 *(payload.func_specific+bios_index));
496 kfree(payload.func_specific);
497 return str - buf;
498 }
499 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
500 /**
501 * event_log_size_show - event log size
502 * @cdev: pointer to embedded class device
503 * @attr: device attribute (unused)
504 * @buf: the buffer returned
505 *
506 * A sysfs read shost attribute.
507 */
event_log_size_show(struct device * cdev,struct device_attribute * attr,char * buf)508 static ssize_t event_log_size_show(struct device *cdev,
509 struct device_attribute *attr, char *buf)
510 {
511 struct Scsi_Host *shost = class_to_shost(cdev);
512 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
513 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
514
515 return snprintf(buf, PAGE_SIZE, "%d\n",
516 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
517 }
518 static DEVICE_ATTR_RO(event_log_size);
519 /**
520 * pm8001_ctl_iop_log_show - IOP event log
521 * @cdev: pointer to embedded class device
522 * @attr: device attribute (unused)
523 * @buf: the buffer returned
524 *
525 * A sysfs 'read-only' shost attribute.
526 */
pm8001_ctl_iop_log_show(struct device * cdev,struct device_attribute * attr,char * buf)527 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
528 struct device_attribute *attr, char *buf)
529 {
530 struct Scsi_Host *shost = class_to_shost(cdev);
531 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
532 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
533 char *str = buf;
534 u32 read_size =
535 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024;
536 static u32 start, end, count;
537 u32 max_read_times = 32;
538 u32 max_count = (read_size * 1024) / (max_read_times * 4);
539 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr;
540
541 if ((count % max_count) == 0) {
542 start = 0;
543 end = max_read_times;
544 count = 0;
545 } else {
546 start = end;
547 end = end + max_read_times;
548 }
549
550 for (; start < end; start++)
551 str += sprintf(str, "%08x ", *(temp+start));
552 count++;
553 return str - buf;
554 }
555 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
556
557 /**
558 ** pm8001_ctl_fatal_log_show - fatal error logging
559 ** @cdev:pointer to embedded class device
560 ** @attr: device attribute
561 ** @buf: the buffer returned
562 **
563 ** A sysfs 'read-only' shost attribute.
564 **/
565
pm8001_ctl_fatal_log_show(struct device * cdev,struct device_attribute * attr,char * buf)566 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
567 struct device_attribute *attr, char *buf)
568 {
569 ssize_t count;
570
571 count = pm80xx_get_fatal_dump(cdev, attr, buf);
572 return count;
573 }
574
575 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
576
577 /**
578 ** non_fatal_log_show - non fatal error logging
579 ** @cdev:pointer to embedded class device
580 ** @attr: device attribute
581 ** @buf: the buffer returned
582 **
583 ** A sysfs 'read-only' shost attribute.
584 **/
non_fatal_log_show(struct device * cdev,struct device_attribute * attr,char * buf)585 static ssize_t non_fatal_log_show(struct device *cdev,
586 struct device_attribute *attr, char *buf)
587 {
588 u32 count;
589
590 count = pm80xx_get_non_fatal_dump(cdev, attr, buf);
591 return count;
592 }
593 static DEVICE_ATTR_RO(non_fatal_log);
594
non_fatal_count_show(struct device * cdev,struct device_attribute * attr,char * buf)595 static ssize_t non_fatal_count_show(struct device *cdev,
596 struct device_attribute *attr, char *buf)
597 {
598 struct Scsi_Host *shost = class_to_shost(cdev);
599 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
600 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
601
602 return snprintf(buf, PAGE_SIZE, "%08x",
603 pm8001_ha->non_fatal_count);
604 }
605
non_fatal_count_store(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)606 static ssize_t non_fatal_count_store(struct device *cdev,
607 struct device_attribute *attr, const char *buf, size_t count)
608 {
609 struct Scsi_Host *shost = class_to_shost(cdev);
610 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
611 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
612 int val = 0;
613
614 if (kstrtoint(buf, 16, &val) != 0)
615 return -EINVAL;
616
617 pm8001_ha->non_fatal_count = val;
618 return strlen(buf);
619 }
620 static DEVICE_ATTR_RW(non_fatal_count);
621
622 /**
623 ** pm8001_ctl_gsm_log_show - gsm dump collection
624 ** @cdev:pointer to embedded class device
625 ** @attr: device attribute (unused)
626 ** @buf: the buffer returned
627 ** A sysfs 'read-only' shost attribute.
628 **/
pm8001_ctl_gsm_log_show(struct device * cdev,struct device_attribute * attr,char * buf)629 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
630 struct device_attribute *attr, char *buf)
631 {
632 ssize_t count;
633
634 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
635 return count;
636 }
637
638 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
639
640 #define FLASH_CMD_NONE 0x00
641 #define FLASH_CMD_UPDATE 0x01
642 #define FLASH_CMD_SET_NVMD 0x02
643
644 struct flash_command {
645 u8 command[8];
646 int code;
647 };
648
649 static const struct flash_command flash_command_table[] = {
650 {"set_nvmd", FLASH_CMD_SET_NVMD},
651 {"update", FLASH_CMD_UPDATE},
652 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
653 };
654
655 struct error_fw {
656 char *reason;
657 int err_code;
658 };
659
660 static const struct error_fw flash_error_table[] = {
661 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
662 {"image header mismatch", FLASH_UPDATE_HDR_ERR},
663 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
664 {"image CRC Error", FLASH_UPDATE_CRC_ERR},
665 {"image length Error.", FLASH_UPDATE_LENGTH_ERR},
666 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
667 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
668 {"Flash update disabled.", FLASH_UPDATE_DISABLED},
669 {"Flash in progress", FLASH_IN_PROGRESS},
670 {"Image file size Error", FAIL_FILE_SIZE},
671 {"Input parameter error", FAIL_PARAMETERS},
672 {"Out of memory", FAIL_OUT_MEMORY},
673 {"OK", 0} /* Last entry err_code = 0. */
674 };
675
pm8001_set_nvmd(struct pm8001_hba_info * pm8001_ha)676 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
677 {
678 struct pm8001_ioctl_payload *payload;
679 DECLARE_COMPLETION_ONSTACK(completion);
680 u8 *ioctlbuffer;
681 u32 ret;
682 u32 length = 1024 * 5 + sizeof(*payload) - 1;
683
684 if (pm8001_ha->fw_image->size > 4096) {
685 pm8001_ha->fw_status = FAIL_FILE_SIZE;
686 return -EFAULT;
687 }
688
689 ioctlbuffer = kzalloc(length, GFP_KERNEL);
690 if (!ioctlbuffer) {
691 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
692 return -ENOMEM;
693 }
694 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
695 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
696 pm8001_ha->fw_image->size);
697 payload->wr_length = pm8001_ha->fw_image->size;
698 payload->id = 0;
699 payload->minor_function = 0x1;
700 pm8001_ha->nvmd_completion = &completion;
701 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
702 if (ret) {
703 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
704 goto out;
705 }
706 wait_for_completion(&completion);
707 out:
708 kfree(ioctlbuffer);
709 return ret;
710 }
711
pm8001_update_flash(struct pm8001_hba_info * pm8001_ha)712 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
713 {
714 struct pm8001_ioctl_payload *payload;
715 DECLARE_COMPLETION_ONSTACK(completion);
716 u8 *ioctlbuffer;
717 struct fw_control_info *fwControl;
718 u32 partitionSize, partitionSizeTmp;
719 u32 loopNumber, loopcount;
720 struct pm8001_fw_image_header *image_hdr;
721 u32 sizeRead = 0;
722 u32 ret = 0;
723 u32 length = 1024 * 16 + sizeof(*payload) - 1;
724
725 if (pm8001_ha->fw_image->size < 28) {
726 pm8001_ha->fw_status = FAIL_FILE_SIZE;
727 return -EFAULT;
728 }
729 ioctlbuffer = kzalloc(length, GFP_KERNEL);
730 if (!ioctlbuffer) {
731 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
732 return -ENOMEM;
733 }
734 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
735 while (sizeRead < pm8001_ha->fw_image->size) {
736 partitionSizeTmp =
737 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
738 partitionSize = be32_to_cpu(partitionSizeTmp);
739 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
740 IOCTL_BUF_SIZE);
741 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
742 payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
743 payload->wr_length = 1024*16;
744 payload->id = 0;
745 fwControl =
746 (struct fw_control_info *)&payload->func_specific;
747 fwControl->len = IOCTL_BUF_SIZE; /* IN */
748 fwControl->size = partitionSize + HEADER_LEN;/* IN */
749 fwControl->retcode = 0;/* OUT */
750 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
751
752 /* for the last chunk of data in case file size is not even with
753 4k, load only the rest*/
754 if (((loopcount-loopNumber) == 1) &&
755 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
756 fwControl->len =
757 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
758 memcpy((u8 *)fwControl->buffer,
759 (u8 *)pm8001_ha->fw_image->data + sizeRead,
760 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
761 sizeRead +=
762 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
763 } else {
764 memcpy((u8 *)fwControl->buffer,
765 (u8 *)pm8001_ha->fw_image->data + sizeRead,
766 IOCTL_BUF_SIZE);
767 sizeRead += IOCTL_BUF_SIZE;
768 }
769
770 pm8001_ha->nvmd_completion = &completion;
771 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
772 if (ret) {
773 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
774 goto out;
775 }
776 wait_for_completion(&completion);
777 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
778 pm8001_ha->fw_status = fwControl->retcode;
779 ret = -EFAULT;
780 goto out;
781 }
782 }
783 }
784 out:
785 kfree(ioctlbuffer);
786 return ret;
787 }
pm8001_store_update_fw(struct device * cdev,struct device_attribute * attr,const char * buf,size_t count)788 static ssize_t pm8001_store_update_fw(struct device *cdev,
789 struct device_attribute *attr,
790 const char *buf, size_t count)
791 {
792 struct Scsi_Host *shost = class_to_shost(cdev);
793 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
794 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
795 char *cmd_ptr, *filename_ptr;
796 int res, i;
797 int flash_command = FLASH_CMD_NONE;
798 int ret;
799
800 if (!capable(CAP_SYS_ADMIN))
801 return -EACCES;
802
803 /* this test protects us from running two flash processes at once,
804 * so we should start with this test */
805 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
806 return -EINPROGRESS;
807 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
808
809 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
810 if (!cmd_ptr) {
811 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
812 return -ENOMEM;
813 }
814
815 filename_ptr = cmd_ptr + count;
816 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
817 if (res != 2) {
818 pm8001_ha->fw_status = FAIL_PARAMETERS;
819 ret = -EINVAL;
820 goto out;
821 }
822
823 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
824 if (!memcmp(flash_command_table[i].command,
825 cmd_ptr, strlen(cmd_ptr))) {
826 flash_command = flash_command_table[i].code;
827 break;
828 }
829 }
830 if (flash_command == FLASH_CMD_NONE) {
831 pm8001_ha->fw_status = FAIL_PARAMETERS;
832 ret = -EINVAL;
833 goto out;
834 }
835
836 ret = request_firmware(&pm8001_ha->fw_image,
837 filename_ptr,
838 pm8001_ha->dev);
839
840 if (ret) {
841 pm8001_dbg(pm8001_ha, FAIL,
842 "Failed to load firmware image file %s, error %d\n",
843 filename_ptr, ret);
844 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
845 goto out;
846 }
847
848 if (FLASH_CMD_UPDATE == flash_command)
849 ret = pm8001_update_flash(pm8001_ha);
850 else
851 ret = pm8001_set_nvmd(pm8001_ha);
852
853 release_firmware(pm8001_ha->fw_image);
854 out:
855 kfree(cmd_ptr);
856
857 if (ret)
858 return ret;
859
860 pm8001_ha->fw_status = FLASH_OK;
861 return count;
862 }
863
pm8001_show_update_fw(struct device * cdev,struct device_attribute * attr,char * buf)864 static ssize_t pm8001_show_update_fw(struct device *cdev,
865 struct device_attribute *attr, char *buf)
866 {
867 int i;
868 struct Scsi_Host *shost = class_to_shost(cdev);
869 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
870 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
871
872 for (i = 0; flash_error_table[i].err_code != 0; i++) {
873 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
874 break;
875 }
876 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
877 pm8001_ha->fw_status = FLASH_OK;
878
879 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
880 flash_error_table[i].err_code,
881 flash_error_table[i].reason);
882 }
883 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
884 pm8001_show_update_fw, pm8001_store_update_fw);
885
886 /**
887 * ctl_mpi_state_show - controller MPI state check
888 * @cdev: pointer to embedded class device
889 * @buf: the buffer returned
890 *
891 * A sysfs 'read-only' shost attribute.
892 */
893
894 static const char *const mpiStateText[] = {
895 "MPI is not initialized",
896 "MPI is successfully initialized",
897 "MPI termination is in progress",
898 "MPI initialization failed with error in [31:16]"
899 };
900
ctl_mpi_state_show(struct device * cdev,struct device_attribute * attr,char * buf)901 static ssize_t ctl_mpi_state_show(struct device *cdev,
902 struct device_attribute *attr, char *buf)
903 {
904 struct Scsi_Host *shost = class_to_shost(cdev);
905 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
906 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
907 unsigned int mpidw0;
908
909 mpidw0 = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 0);
910 return sysfs_emit(buf, "%s\n", mpiStateText[mpidw0 & 0x0003]);
911 }
912 static DEVICE_ATTR_RO(ctl_mpi_state);
913
914 /**
915 * ctl_hmi_error_show - controller MPI initialization fails
916 * @cdev: pointer to embedded class device
917 * @buf: the buffer returned
918 *
919 * A sysfs 'read-only' shost attribute.
920 */
921
ctl_hmi_error_show(struct device * cdev,struct device_attribute * attr,char * buf)922 static ssize_t ctl_hmi_error_show(struct device *cdev,
923 struct device_attribute *attr, char *buf)
924 {
925 struct Scsi_Host *shost = class_to_shost(cdev);
926 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
927 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
928 unsigned int mpidw0;
929
930 mpidw0 = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 0);
931 return sysfs_emit(buf, "0x%08x\n", (mpidw0 >> 16));
932 }
933 static DEVICE_ATTR_RO(ctl_hmi_error);
934
935 /**
936 * ctl_raae_count_show - controller raae count check
937 * @cdev: pointer to embedded class device
938 * @buf: the buffer returned
939 *
940 * A sysfs 'read-only' shost attribute.
941 */
942
ctl_raae_count_show(struct device * cdev,struct device_attribute * attr,char * buf)943 static ssize_t ctl_raae_count_show(struct device *cdev,
944 struct device_attribute *attr, char *buf)
945 {
946 struct Scsi_Host *shost = class_to_shost(cdev);
947 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
948 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
949 unsigned int raaecnt;
950
951 raaecnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 12);
952 return sysfs_emit(buf, "0x%08x\n", raaecnt);
953 }
954 static DEVICE_ATTR_RO(ctl_raae_count);
955
956 /**
957 * ctl_iop0_count_show - controller iop0 count check
958 * @cdev: pointer to embedded class device
959 * @buf: the buffer returned
960 *
961 * A sysfs 'read-only' shost attribute.
962 */
963
ctl_iop0_count_show(struct device * cdev,struct device_attribute * attr,char * buf)964 static ssize_t ctl_iop0_count_show(struct device *cdev,
965 struct device_attribute *attr, char *buf)
966 {
967 struct Scsi_Host *shost = class_to_shost(cdev);
968 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
969 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
970 unsigned int iop0cnt;
971
972 iop0cnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 16);
973 return sysfs_emit(buf, "0x%08x\n", iop0cnt);
974 }
975 static DEVICE_ATTR_RO(ctl_iop0_count);
976
977 /**
978 * ctl_iop1_count_show - controller iop1 count check
979 * @cdev: pointer to embedded class device
980 * @buf: the buffer returned
981 *
982 * A sysfs 'read-only' shost attribute.
983 */
984
ctl_iop1_count_show(struct device * cdev,struct device_attribute * attr,char * buf)985 static ssize_t ctl_iop1_count_show(struct device *cdev,
986 struct device_attribute *attr, char *buf)
987 {
988 struct Scsi_Host *shost = class_to_shost(cdev);
989 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
990 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
991 unsigned int iop1cnt;
992
993 iop1cnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 20);
994 return sysfs_emit(buf, "0x%08x\n", iop1cnt);
995
996 }
997 static DEVICE_ATTR_RO(ctl_iop1_count);
998
999 struct device_attribute *pm8001_host_attrs[] = {
1000 &dev_attr_interface_rev,
1001 &dev_attr_controller_fatal_error,
1002 &dev_attr_fw_version,
1003 &dev_attr_update_fw,
1004 &dev_attr_aap_log,
1005 &dev_attr_iop_log,
1006 &dev_attr_fatal_log,
1007 &dev_attr_non_fatal_log,
1008 &dev_attr_non_fatal_count,
1009 &dev_attr_gsm_log,
1010 &dev_attr_max_out_io,
1011 &dev_attr_max_devices,
1012 &dev_attr_max_sg_list,
1013 &dev_attr_sas_spec_support,
1014 &dev_attr_logging_level,
1015 &dev_attr_event_log_size,
1016 &dev_attr_host_sas_address,
1017 &dev_attr_bios_version,
1018 &dev_attr_ib_log,
1019 &dev_attr_ob_log,
1020 &dev_attr_ila_version,
1021 &dev_attr_inc_fw_ver,
1022 &dev_attr_ctl_mpi_state,
1023 &dev_attr_ctl_hmi_error,
1024 &dev_attr_ctl_raae_count,
1025 &dev_attr_ctl_iop0_count,
1026 &dev_attr_ctl_iop1_count,
1027 NULL,
1028 };
1029
1030