1 /* 2 * PMC-Sierra 8001/8081/8088/8089 SAS/SATA based host adapters driver 3 * 4 * Copyright (c) 2008-2009 USI Co., Ltd. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * substantially similar to the "NO WARRANTY" disclaimer below 15 * ("Disclaimer") and any redistribution must be conditioned upon 16 * including a substantially similar Disclaimer requirement for further 17 * binary redistribution. 18 * 3. Neither the names of the above-listed copyright holders nor the names 19 * of any contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * Alternatively, this software may be distributed under the terms of the 23 * GNU General Public License ("GPL") version 2 as published by the Free 24 * Software Foundation. 25 * 26 * NO WARRANTY 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGES. 38 * 39 */ 40 #include <linux/firmware.h> 41 #include <linux/slab.h> 42 #include "pm8001_sas.h" 43 #include "pm8001_ctl.h" 44 45 /* scsi host attributes */ 46 47 /** 48 * pm8001_ctl_mpi_interface_rev_show - MPI interface revision number 49 * @cdev: pointer to embedded class device 50 * @buf: the buffer returned 51 * 52 * A sysfs 'read-only' shost attribute. 53 */ 54 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev, 55 struct device_attribute *attr, char *buf) 56 { 57 struct Scsi_Host *shost = class_to_shost(cdev); 58 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 59 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 60 61 if (pm8001_ha->chip_id == chip_8001) { 62 return snprintf(buf, PAGE_SIZE, "%d\n", 63 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev); 64 } else { 65 return snprintf(buf, PAGE_SIZE, "%d\n", 66 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev); 67 } 68 } 69 static 70 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL); 71 72 /** 73 * pm8001_ctl_fw_version_show - firmware version 74 * @cdev: pointer to embedded class device 75 * @buf: the buffer returned 76 * 77 * A sysfs 'read-only' shost attribute. 78 */ 79 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev, 80 struct device_attribute *attr, char *buf) 81 { 82 struct Scsi_Host *shost = class_to_shost(cdev); 83 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 84 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 85 86 if (pm8001_ha->chip_id == chip_8001) { 87 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 88 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24), 89 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16), 90 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8), 91 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev)); 92 } else { 93 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 94 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24), 95 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16), 96 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8), 97 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev)); 98 } 99 } 100 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL); 101 102 /** 103 * pm8001_ctl_ila_version_show - ila version 104 * @cdev: pointer to embedded class device 105 * @buf: the buffer returned 106 * 107 * A sysfs 'read-only' shost attribute. 108 */ 109 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev, 110 struct device_attribute *attr, char *buf) 111 { 112 struct Scsi_Host *shost = class_to_shost(cdev); 113 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 114 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 115 116 if (pm8001_ha->chip_id != chip_8001) { 117 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 118 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24), 119 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16), 120 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8), 121 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version)); 122 } 123 return 0; 124 } 125 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL); 126 127 /** 128 * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number 129 * @cdev: pointer to embedded class device 130 * @buf: the buffer returned 131 * 132 * A sysfs 'read-only' shost attribute. 133 */ 134 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev, 135 struct device_attribute *attr, char *buf) 136 { 137 struct Scsi_Host *shost = class_to_shost(cdev); 138 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 139 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 140 141 if (pm8001_ha->chip_id != chip_8001) { 142 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 143 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24), 144 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16), 145 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8), 146 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version)); 147 } 148 return 0; 149 } 150 static 151 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL); 152 153 /** 154 * pm8001_ctl_max_out_io_show - max outstanding io supported 155 * @cdev: pointer to embedded class device 156 * @buf: the buffer returned 157 * 158 * A sysfs 'read-only' shost attribute. 159 */ 160 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev, 161 struct device_attribute *attr, char *buf) 162 { 163 struct Scsi_Host *shost = class_to_shost(cdev); 164 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 165 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 166 167 if (pm8001_ha->chip_id == chip_8001) { 168 return snprintf(buf, PAGE_SIZE, "%d\n", 169 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io); 170 } else { 171 return snprintf(buf, PAGE_SIZE, "%d\n", 172 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io); 173 } 174 } 175 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL); 176 /** 177 * pm8001_ctl_max_devices_show - max devices support 178 * @cdev: pointer to embedded class device 179 * @buf: the buffer returned 180 * 181 * A sysfs 'read-only' shost attribute. 182 */ 183 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev, 184 struct device_attribute *attr, char *buf) 185 { 186 struct Scsi_Host *shost = class_to_shost(cdev); 187 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 188 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 189 190 if (pm8001_ha->chip_id == chip_8001) { 191 return snprintf(buf, PAGE_SIZE, "%04d\n", 192 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16) 193 ); 194 } else { 195 return snprintf(buf, PAGE_SIZE, "%04d\n", 196 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16) 197 ); 198 } 199 } 200 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL); 201 /** 202 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no 203 * hardware limitation 204 * @cdev: pointer to embedded class device 205 * @buf: the buffer returned 206 * 207 * A sysfs 'read-only' shost attribute. 208 */ 209 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev, 210 struct device_attribute *attr, char *buf) 211 { 212 struct Scsi_Host *shost = class_to_shost(cdev); 213 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 214 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 215 216 if (pm8001_ha->chip_id == chip_8001) { 217 return snprintf(buf, PAGE_SIZE, "%04d\n", 218 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF 219 ); 220 } else { 221 return snprintf(buf, PAGE_SIZE, "%04d\n", 222 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF 223 ); 224 } 225 } 226 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL); 227 228 #define SAS_1_0 0x1 229 #define SAS_1_1 0x2 230 #define SAS_2_0 0x4 231 232 static ssize_t 233 show_sas_spec_support_status(unsigned int mode, char *buf) 234 { 235 ssize_t len = 0; 236 237 if (mode & SAS_1_1) 238 len = sprintf(buf, "%s", "SAS1.1"); 239 if (mode & SAS_2_0) 240 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0"); 241 len += sprintf(buf + len, "\n"); 242 243 return len; 244 } 245 246 /** 247 * pm8001_ctl_sas_spec_support_show - sas spec supported 248 * @cdev: pointer to embedded class device 249 * @buf: the buffer returned 250 * 251 * A sysfs 'read-only' shost attribute. 252 */ 253 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev, 254 struct device_attribute *attr, char *buf) 255 { 256 unsigned int mode; 257 struct Scsi_Host *shost = class_to_shost(cdev); 258 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 259 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 260 /* fe000000 means supports SAS2.1 */ 261 if (pm8001_ha->chip_id == chip_8001) 262 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag & 263 0xfe000000)>>25; 264 else 265 /* fe000000 means supports SAS2.1 */ 266 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag & 267 0xfe000000)>>25; 268 return show_sas_spec_support_status(mode, buf); 269 } 270 static DEVICE_ATTR(sas_spec_support, S_IRUGO, 271 pm8001_ctl_sas_spec_support_show, NULL); 272 273 /** 274 * pm8001_ctl_sas_address_show - sas address 275 * @cdev: pointer to embedded class device 276 * @buf: the buffer returned 277 * 278 * This is the controller sas address 279 * 280 * A sysfs 'read-only' shost attribute. 281 */ 282 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev, 283 struct device_attribute *attr, char *buf) 284 { 285 struct Scsi_Host *shost = class_to_shost(cdev); 286 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 287 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 288 return snprintf(buf, PAGE_SIZE, "0x%016llx\n", 289 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr)); 290 } 291 static DEVICE_ATTR(host_sas_address, S_IRUGO, 292 pm8001_ctl_host_sas_address_show, NULL); 293 294 /** 295 * pm8001_ctl_logging_level_show - logging level 296 * @cdev: pointer to embedded class device 297 * @buf: the buffer returned 298 * 299 * A sysfs 'read/write' shost attribute. 300 */ 301 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev, 302 struct device_attribute *attr, char *buf) 303 { 304 struct Scsi_Host *shost = class_to_shost(cdev); 305 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 306 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 307 308 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level); 309 } 310 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev, 311 struct device_attribute *attr, const char *buf, size_t count) 312 { 313 struct Scsi_Host *shost = class_to_shost(cdev); 314 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 315 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 316 int val = 0; 317 318 if (sscanf(buf, "%x", &val) != 1) 319 return -EINVAL; 320 321 pm8001_ha->logging_level = val; 322 return strlen(buf); 323 } 324 325 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, 326 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store); 327 /** 328 * pm8001_ctl_aap_log_show - aap1 event log 329 * @cdev: pointer to embedded class device 330 * @buf: the buffer returned 331 * 332 * A sysfs 'read-only' shost attribute. 333 */ 334 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev, 335 struct device_attribute *attr, char *buf) 336 { 337 struct Scsi_Host *shost = class_to_shost(cdev); 338 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 339 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 340 int i; 341 #define AAP1_MEMMAP(r, c) \ 342 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \ 343 + (c))) 344 345 char *str = buf; 346 int max = 2; 347 for (i = 0; i < max; i++) { 348 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x" 349 "0x%08x 0x%08x\n", 350 AAP1_MEMMAP(i, 0), 351 AAP1_MEMMAP(i, 4), 352 AAP1_MEMMAP(i, 8), 353 AAP1_MEMMAP(i, 12), 354 AAP1_MEMMAP(i, 16), 355 AAP1_MEMMAP(i, 20), 356 AAP1_MEMMAP(i, 24), 357 AAP1_MEMMAP(i, 28)); 358 } 359 360 return str - buf; 361 } 362 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); 363 /** 364 * pm8001_ctl_ib_queue_log_show - Out bound Queue log 365 * @cdev:pointer to embedded class device 366 * @buf: the buffer returned 367 * A sysfs 'read-only' shost attribute. 368 */ 369 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev, 370 struct device_attribute *attr, char *buf) 371 { 372 struct Scsi_Host *shost = class_to_shost(cdev); 373 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 374 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 375 int offset; 376 char *str = buf; 377 int start = 0; 378 #define IB_MEMMAP(c) \ 379 (*(u32 *)((u8 *)pm8001_ha-> \ 380 memoryMap.region[IB].virt_ptr + \ 381 pm8001_ha->evtlog_ib_offset + (c))) 382 383 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 384 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start)); 385 start = start + 4; 386 } 387 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET; 388 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0) 389 pm8001_ha->evtlog_ib_offset = 0; 390 391 return str - buf; 392 } 393 394 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL); 395 /** 396 * pm8001_ctl_ob_queue_log_show - Out bound Queue log 397 * @cdev:pointer to embedded class device 398 * @buf: the buffer returned 399 * A sysfs 'read-only' shost attribute. 400 */ 401 402 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev, 403 struct device_attribute *attr, char *buf) 404 { 405 struct Scsi_Host *shost = class_to_shost(cdev); 406 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 407 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 408 int offset; 409 char *str = buf; 410 int start = 0; 411 #define OB_MEMMAP(c) \ 412 (*(u32 *)((u8 *)pm8001_ha-> \ 413 memoryMap.region[OB].virt_ptr + \ 414 pm8001_ha->evtlog_ob_offset + (c))) 415 416 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 417 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start)); 418 start = start + 4; 419 } 420 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET; 421 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0) 422 pm8001_ha->evtlog_ob_offset = 0; 423 424 return str - buf; 425 } 426 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL); 427 /** 428 * pm8001_ctl_bios_version_show - Bios version Display 429 * @cdev:pointer to embedded class device 430 * @buf:the buffer returned 431 * A sysfs 'read-only' shost attribute. 432 */ 433 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, 434 struct device_attribute *attr, char *buf) 435 { 436 struct Scsi_Host *shost = class_to_shost(cdev); 437 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 438 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 439 char *str = buf; 440 int bios_index; 441 DECLARE_COMPLETION_ONSTACK(completion); 442 struct pm8001_ioctl_payload payload; 443 444 pm8001_ha->nvmd_completion = &completion; 445 payload.minor_function = 7; 446 payload.offset = 0; 447 payload.length = 4096; 448 payload.func_specific = kzalloc(4096, GFP_KERNEL); 449 if (!payload.func_specific) 450 return -ENOMEM; 451 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) { 452 kfree(payload.func_specific); 453 return -ENOMEM; 454 } 455 wait_for_completion(&completion); 456 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT; 457 bios_index++) 458 str += sprintf(str, "%c", 459 *(payload.func_specific+bios_index)); 460 kfree(payload.func_specific); 461 return str - buf; 462 } 463 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL); 464 /** 465 * event_log_size_show - event log size 466 * @cdev: pointer to embedded class device 467 * @buf: the buffer returned 468 * 469 * A sysfs read shost attribute. 470 */ 471 static ssize_t event_log_size_show(struct device *cdev, 472 struct device_attribute *attr, char *buf) 473 { 474 struct Scsi_Host *shost = class_to_shost(cdev); 475 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 476 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 477 478 return snprintf(buf, PAGE_SIZE, "%d\n", 479 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size); 480 } 481 static DEVICE_ATTR_RO(event_log_size); 482 /** 483 * pm8001_ctl_aap_log_show - IOP event log 484 * @cdev: pointer to embedded class device 485 * @buf: the buffer returned 486 * 487 * A sysfs 'read-only' shost attribute. 488 */ 489 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev, 490 struct device_attribute *attr, char *buf) 491 { 492 struct Scsi_Host *shost = class_to_shost(cdev); 493 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 494 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 495 char *str = buf; 496 u32 read_size = 497 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024; 498 static u32 start, end, count; 499 u32 max_read_times = 32; 500 u32 max_count = (read_size * 1024) / (max_read_times * 4); 501 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr; 502 503 if ((count % max_count) == 0) { 504 start = 0; 505 end = max_read_times; 506 count = 0; 507 } else { 508 start = end; 509 end = end + max_read_times; 510 } 511 512 for (; start < end; start++) 513 str += sprintf(str, "%08x ", *(temp+start)); 514 count++; 515 return str - buf; 516 } 517 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL); 518 519 /** 520 ** pm8001_ctl_fatal_log_show - fatal error logging 521 ** @cdev:pointer to embedded class device 522 ** @buf: the buffer returned 523 ** 524 ** A sysfs 'read-only' shost attribute. 525 **/ 526 527 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev, 528 struct device_attribute *attr, char *buf) 529 { 530 ssize_t count; 531 532 count = pm80xx_get_fatal_dump(cdev, attr, buf); 533 return count; 534 } 535 536 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL); 537 538 539 /** 540 ** pm8001_ctl_gsm_log_show - gsm dump collection 541 ** @cdev:pointer to embedded class device 542 ** @buf: the buffer returned 543 **A sysfs 'read-only' shost attribute. 544 **/ 545 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev, 546 struct device_attribute *attr, char *buf) 547 { 548 ssize_t count; 549 550 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf); 551 return count; 552 } 553 554 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL); 555 556 #define FLASH_CMD_NONE 0x00 557 #define FLASH_CMD_UPDATE 0x01 558 #define FLASH_CMD_SET_NVMD 0x02 559 560 struct flash_command { 561 u8 command[8]; 562 int code; 563 }; 564 565 static struct flash_command flash_command_table[] = 566 { 567 {"set_nvmd", FLASH_CMD_SET_NVMD}, 568 {"update", FLASH_CMD_UPDATE}, 569 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ 570 }; 571 572 struct error_fw { 573 char *reason; 574 int err_code; 575 }; 576 577 static struct error_fw flash_error_table[] = 578 { 579 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE}, 580 {"image header mismatch", FLASH_UPDATE_HDR_ERR}, 581 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR}, 582 {"image CRC Error", FLASH_UPDATE_CRC_ERR}, 583 {"image length Error.", FLASH_UPDATE_LENGTH_ERR}, 584 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR}, 585 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED}, 586 {"Flash update disabled.", FLASH_UPDATE_DISABLED}, 587 {"Flash in progress", FLASH_IN_PROGRESS}, 588 {"Image file size Error", FAIL_FILE_SIZE}, 589 {"Input parameter error", FAIL_PARAMETERS}, 590 {"Out of memory", FAIL_OUT_MEMORY}, 591 {"OK", 0} /* Last entry err_code = 0. */ 592 }; 593 594 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha) 595 { 596 struct pm8001_ioctl_payload *payload; 597 DECLARE_COMPLETION_ONSTACK(completion); 598 u8 *ioctlbuffer; 599 u32 ret; 600 u32 length = 1024 * 5 + sizeof(*payload) - 1; 601 602 if (pm8001_ha->fw_image->size > 4096) { 603 pm8001_ha->fw_status = FAIL_FILE_SIZE; 604 return -EFAULT; 605 } 606 607 ioctlbuffer = kzalloc(length, GFP_KERNEL); 608 if (!ioctlbuffer) { 609 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 610 return -ENOMEM; 611 } 612 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 613 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data, 614 pm8001_ha->fw_image->size); 615 payload->length = pm8001_ha->fw_image->size; 616 payload->id = 0; 617 payload->minor_function = 0x1; 618 pm8001_ha->nvmd_completion = &completion; 619 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload); 620 if (ret) { 621 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 622 goto out; 623 } 624 wait_for_completion(&completion); 625 out: 626 kfree(ioctlbuffer); 627 return ret; 628 } 629 630 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha) 631 { 632 struct pm8001_ioctl_payload *payload; 633 DECLARE_COMPLETION_ONSTACK(completion); 634 u8 *ioctlbuffer; 635 struct fw_control_info *fwControl; 636 u32 partitionSize, partitionSizeTmp; 637 u32 loopNumber, loopcount; 638 struct pm8001_fw_image_header *image_hdr; 639 u32 sizeRead = 0; 640 u32 ret = 0; 641 u32 length = 1024 * 16 + sizeof(*payload) - 1; 642 643 if (pm8001_ha->fw_image->size < 28) { 644 pm8001_ha->fw_status = FAIL_FILE_SIZE; 645 return -EFAULT; 646 } 647 ioctlbuffer = kzalloc(length, GFP_KERNEL); 648 if (!ioctlbuffer) { 649 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 650 return -ENOMEM; 651 } 652 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data; 653 while (sizeRead < pm8001_ha->fw_image->size) { 654 partitionSizeTmp = 655 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead); 656 partitionSize = be32_to_cpu(partitionSizeTmp); 657 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN, 658 IOCTL_BUF_SIZE); 659 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) { 660 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 661 payload->length = 1024*16; 662 payload->id = 0; 663 fwControl = 664 (struct fw_control_info *)&payload->func_specific; 665 fwControl->len = IOCTL_BUF_SIZE; /* IN */ 666 fwControl->size = partitionSize + HEADER_LEN;/* IN */ 667 fwControl->retcode = 0;/* OUT */ 668 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */ 669 670 /* for the last chunk of data in case file size is not even with 671 4k, load only the rest*/ 672 if (((loopcount-loopNumber) == 1) && 673 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) { 674 fwControl->len = 675 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 676 memcpy((u8 *)fwControl->buffer, 677 (u8 *)pm8001_ha->fw_image->data + sizeRead, 678 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE); 679 sizeRead += 680 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 681 } else { 682 memcpy((u8 *)fwControl->buffer, 683 (u8 *)pm8001_ha->fw_image->data + sizeRead, 684 IOCTL_BUF_SIZE); 685 sizeRead += IOCTL_BUF_SIZE; 686 } 687 688 pm8001_ha->nvmd_completion = &completion; 689 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload); 690 if (ret) { 691 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 692 goto out; 693 } 694 wait_for_completion(&completion); 695 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) { 696 pm8001_ha->fw_status = fwControl->retcode; 697 ret = -EFAULT; 698 goto out; 699 } 700 } 701 } 702 out: 703 kfree(ioctlbuffer); 704 return ret; 705 } 706 static ssize_t pm8001_store_update_fw(struct device *cdev, 707 struct device_attribute *attr, 708 const char *buf, size_t count) 709 { 710 struct Scsi_Host *shost = class_to_shost(cdev); 711 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 712 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 713 char *cmd_ptr, *filename_ptr; 714 int res, i; 715 int flash_command = FLASH_CMD_NONE; 716 int ret; 717 718 if (!capable(CAP_SYS_ADMIN)) 719 return -EACCES; 720 721 /* this test protects us from running two flash processes at once, 722 * so we should start with this test */ 723 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) 724 return -EINPROGRESS; 725 pm8001_ha->fw_status = FLASH_IN_PROGRESS; 726 727 cmd_ptr = kcalloc(count, 2, GFP_KERNEL); 728 if (!cmd_ptr) { 729 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 730 return -ENOMEM; 731 } 732 733 filename_ptr = cmd_ptr + count; 734 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 735 if (res != 2) { 736 pm8001_ha->fw_status = FAIL_PARAMETERS; 737 ret = -EINVAL; 738 goto out; 739 } 740 741 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 742 if (!memcmp(flash_command_table[i].command, 743 cmd_ptr, strlen(cmd_ptr))) { 744 flash_command = flash_command_table[i].code; 745 break; 746 } 747 } 748 if (flash_command == FLASH_CMD_NONE) { 749 pm8001_ha->fw_status = FAIL_PARAMETERS; 750 ret = -EINVAL; 751 goto out; 752 } 753 754 ret = request_firmware(&pm8001_ha->fw_image, 755 filename_ptr, 756 pm8001_ha->dev); 757 758 if (ret) { 759 PM8001_FAIL_DBG(pm8001_ha, 760 pm8001_printk( 761 "Failed to load firmware image file %s, error %d\n", 762 filename_ptr, ret)); 763 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE; 764 goto out; 765 } 766 767 if (FLASH_CMD_UPDATE == flash_command) 768 ret = pm8001_update_flash(pm8001_ha); 769 else 770 ret = pm8001_set_nvmd(pm8001_ha); 771 772 release_firmware(pm8001_ha->fw_image); 773 out: 774 kfree(cmd_ptr); 775 776 if (ret) 777 return ret; 778 779 pm8001_ha->fw_status = FLASH_OK; 780 return count; 781 } 782 783 static ssize_t pm8001_show_update_fw(struct device *cdev, 784 struct device_attribute *attr, char *buf) 785 { 786 int i; 787 struct Scsi_Host *shost = class_to_shost(cdev); 788 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 789 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 790 791 for (i = 0; flash_error_table[i].err_code != 0; i++) { 792 if (flash_error_table[i].err_code == pm8001_ha->fw_status) 793 break; 794 } 795 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS) 796 pm8001_ha->fw_status = FLASH_OK; 797 798 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 799 flash_error_table[i].err_code, 800 flash_error_table[i].reason); 801 } 802 803 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP, 804 pm8001_show_update_fw, pm8001_store_update_fw); 805 struct device_attribute *pm8001_host_attrs[] = { 806 &dev_attr_interface_rev, 807 &dev_attr_fw_version, 808 &dev_attr_update_fw, 809 &dev_attr_aap_log, 810 &dev_attr_iop_log, 811 &dev_attr_fatal_log, 812 &dev_attr_gsm_log, 813 &dev_attr_max_out_io, 814 &dev_attr_max_devices, 815 &dev_attr_max_sg_list, 816 &dev_attr_sas_spec_support, 817 &dev_attr_logging_level, 818 &dev_attr_event_log_size, 819 &dev_attr_host_sas_address, 820 &dev_attr_bios_version, 821 &dev_attr_ib_log, 822 &dev_attr_ob_log, 823 &dev_attr_ila_version, 824 &dev_attr_inc_fw_ver, 825 NULL, 826 }; 827 828