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}; 1042