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 * controller_fatal_error_show - check controller is under fatal err 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 controller_fatal_error_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 return snprintf(buf, PAGE_SIZE, "%d\n", 87 pm8001_ha->controller_fatal_error); 88 } 89 static DEVICE_ATTR_RO(controller_fatal_error); 90 91 /** 92 * pm8001_ctl_fw_version_show - firmware version 93 * @cdev: pointer to embedded class device 94 * @buf: the buffer returned 95 * 96 * A sysfs 'read-only' shost attribute. 97 */ 98 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev, 99 struct device_attribute *attr, char *buf) 100 { 101 struct Scsi_Host *shost = class_to_shost(cdev); 102 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 103 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 104 105 if (pm8001_ha->chip_id == chip_8001) { 106 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 107 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24), 108 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16), 109 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8), 110 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev)); 111 } else { 112 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 113 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24), 114 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16), 115 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8), 116 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev)); 117 } 118 } 119 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL); 120 121 /** 122 * pm8001_ctl_ila_version_show - ila version 123 * @cdev: pointer to embedded class device 124 * @buf: the buffer returned 125 * 126 * A sysfs 'read-only' shost attribute. 127 */ 128 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev, 129 struct device_attribute *attr, char *buf) 130 { 131 struct Scsi_Host *shost = class_to_shost(cdev); 132 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 133 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 134 135 if (pm8001_ha->chip_id != chip_8001) { 136 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 137 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24), 138 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16), 139 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8), 140 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version)); 141 } 142 return 0; 143 } 144 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL); 145 146 /** 147 * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number 148 * @cdev: pointer to embedded class device 149 * @buf: the buffer returned 150 * 151 * A sysfs 'read-only' shost attribute. 152 */ 153 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev, 154 struct device_attribute *attr, char *buf) 155 { 156 struct Scsi_Host *shost = class_to_shost(cdev); 157 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 158 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 159 160 if (pm8001_ha->chip_id != chip_8001) { 161 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 162 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24), 163 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16), 164 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8), 165 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version)); 166 } 167 return 0; 168 } 169 static 170 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL); 171 172 /** 173 * pm8001_ctl_max_out_io_show - max outstanding io supported 174 * @cdev: pointer to embedded class device 175 * @buf: the buffer returned 176 * 177 * A sysfs 'read-only' shost attribute. 178 */ 179 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev, 180 struct device_attribute *attr, char *buf) 181 { 182 struct Scsi_Host *shost = class_to_shost(cdev); 183 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 184 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 185 186 if (pm8001_ha->chip_id == chip_8001) { 187 return snprintf(buf, PAGE_SIZE, "%d\n", 188 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io); 189 } else { 190 return snprintf(buf, PAGE_SIZE, "%d\n", 191 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io); 192 } 193 } 194 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL); 195 /** 196 * pm8001_ctl_max_devices_show - max devices support 197 * @cdev: pointer to embedded class device 198 * @buf: the buffer returned 199 * 200 * A sysfs 'read-only' shost attribute. 201 */ 202 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev, 203 struct device_attribute *attr, char *buf) 204 { 205 struct Scsi_Host *shost = class_to_shost(cdev); 206 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 207 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 208 209 if (pm8001_ha->chip_id == chip_8001) { 210 return snprintf(buf, PAGE_SIZE, "%04d\n", 211 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16) 212 ); 213 } else { 214 return snprintf(buf, PAGE_SIZE, "%04d\n", 215 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16) 216 ); 217 } 218 } 219 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL); 220 /** 221 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no 222 * hardware limitation 223 * @cdev: pointer to embedded class device 224 * @buf: the buffer returned 225 * 226 * A sysfs 'read-only' shost attribute. 227 */ 228 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev, 229 struct device_attribute *attr, char *buf) 230 { 231 struct Scsi_Host *shost = class_to_shost(cdev); 232 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 233 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 234 235 if (pm8001_ha->chip_id == chip_8001) { 236 return snprintf(buf, PAGE_SIZE, "%04d\n", 237 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF 238 ); 239 } else { 240 return snprintf(buf, PAGE_SIZE, "%04d\n", 241 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF 242 ); 243 } 244 } 245 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL); 246 247 #define SAS_1_0 0x1 248 #define SAS_1_1 0x2 249 #define SAS_2_0 0x4 250 251 static ssize_t 252 show_sas_spec_support_status(unsigned int mode, char *buf) 253 { 254 ssize_t len = 0; 255 256 if (mode & SAS_1_1) 257 len = sprintf(buf, "%s", "SAS1.1"); 258 if (mode & SAS_2_0) 259 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0"); 260 len += sprintf(buf + len, "\n"); 261 262 return len; 263 } 264 265 /** 266 * pm8001_ctl_sas_spec_support_show - sas spec supported 267 * @cdev: pointer to embedded class device 268 * @buf: the buffer returned 269 * 270 * A sysfs 'read-only' shost attribute. 271 */ 272 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev, 273 struct device_attribute *attr, char *buf) 274 { 275 unsigned int mode; 276 struct Scsi_Host *shost = class_to_shost(cdev); 277 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 278 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 279 /* fe000000 means supports SAS2.1 */ 280 if (pm8001_ha->chip_id == chip_8001) 281 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag & 282 0xfe000000)>>25; 283 else 284 /* fe000000 means supports SAS2.1 */ 285 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag & 286 0xfe000000)>>25; 287 return show_sas_spec_support_status(mode, buf); 288 } 289 static DEVICE_ATTR(sas_spec_support, S_IRUGO, 290 pm8001_ctl_sas_spec_support_show, NULL); 291 292 /** 293 * pm8001_ctl_sas_address_show - sas address 294 * @cdev: pointer to embedded class device 295 * @buf: the buffer returned 296 * 297 * This is the controller sas address 298 * 299 * A sysfs 'read-only' shost attribute. 300 */ 301 static ssize_t pm8001_ctl_host_sas_address_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 return snprintf(buf, PAGE_SIZE, "0x%016llx\n", 308 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr)); 309 } 310 static DEVICE_ATTR(host_sas_address, S_IRUGO, 311 pm8001_ctl_host_sas_address_show, NULL); 312 313 /** 314 * pm8001_ctl_logging_level_show - logging level 315 * @cdev: pointer to embedded class device 316 * @buf: the buffer returned 317 * 318 * A sysfs 'read/write' shost attribute. 319 */ 320 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev, 321 struct device_attribute *attr, char *buf) 322 { 323 struct Scsi_Host *shost = class_to_shost(cdev); 324 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 325 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 326 327 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level); 328 } 329 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev, 330 struct device_attribute *attr, const char *buf, size_t count) 331 { 332 struct Scsi_Host *shost = class_to_shost(cdev); 333 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 334 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 335 int val = 0; 336 337 if (sscanf(buf, "%x", &val) != 1) 338 return -EINVAL; 339 340 pm8001_ha->logging_level = val; 341 return strlen(buf); 342 } 343 344 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, 345 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store); 346 /** 347 * pm8001_ctl_aap_log_show - aap1 event log 348 * @cdev: pointer to embedded class device 349 * @buf: the buffer returned 350 * 351 * A sysfs 'read-only' shost attribute. 352 */ 353 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev, 354 struct device_attribute *attr, char *buf) 355 { 356 struct Scsi_Host *shost = class_to_shost(cdev); 357 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 358 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 359 int i; 360 #define AAP1_MEMMAP(r, c) \ 361 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \ 362 + (c))) 363 364 char *str = buf; 365 int max = 2; 366 for (i = 0; i < max; i++) { 367 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x" 368 "0x%08x 0x%08x\n", 369 AAP1_MEMMAP(i, 0), 370 AAP1_MEMMAP(i, 4), 371 AAP1_MEMMAP(i, 8), 372 AAP1_MEMMAP(i, 12), 373 AAP1_MEMMAP(i, 16), 374 AAP1_MEMMAP(i, 20), 375 AAP1_MEMMAP(i, 24), 376 AAP1_MEMMAP(i, 28)); 377 } 378 379 return str - buf; 380 } 381 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); 382 /** 383 * pm8001_ctl_ib_queue_log_show - Out bound Queue log 384 * @cdev:pointer to embedded class device 385 * @buf: the buffer returned 386 * A sysfs 'read-only' shost attribute. 387 */ 388 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev, 389 struct device_attribute *attr, char *buf) 390 { 391 struct Scsi_Host *shost = class_to_shost(cdev); 392 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 393 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 394 int offset; 395 char *str = buf; 396 int start = 0; 397 #define IB_MEMMAP(c) \ 398 (*(u32 *)((u8 *)pm8001_ha-> \ 399 memoryMap.region[IB].virt_ptr + \ 400 pm8001_ha->evtlog_ib_offset + (c))) 401 402 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 403 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start)); 404 start = start + 4; 405 } 406 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET; 407 if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0) 408 pm8001_ha->evtlog_ib_offset = 0; 409 410 return str - buf; 411 } 412 413 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL); 414 /** 415 * pm8001_ctl_ob_queue_log_show - Out bound Queue log 416 * @cdev:pointer to embedded class device 417 * @buf: the buffer returned 418 * A sysfs 'read-only' shost attribute. 419 */ 420 421 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev, 422 struct device_attribute *attr, char *buf) 423 { 424 struct Scsi_Host *shost = class_to_shost(cdev); 425 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 426 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 427 int offset; 428 char *str = buf; 429 int start = 0; 430 #define OB_MEMMAP(c) \ 431 (*(u32 *)((u8 *)pm8001_ha-> \ 432 memoryMap.region[OB].virt_ptr + \ 433 pm8001_ha->evtlog_ob_offset + (c))) 434 435 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 436 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start)); 437 start = start + 4; 438 } 439 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET; 440 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0) 441 pm8001_ha->evtlog_ob_offset = 0; 442 443 return str - buf; 444 } 445 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL); 446 /** 447 * pm8001_ctl_bios_version_show - Bios version Display 448 * @cdev:pointer to embedded class device 449 * @buf:the buffer returned 450 * A sysfs 'read-only' shost attribute. 451 */ 452 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, 453 struct device_attribute *attr, char *buf) 454 { 455 struct Scsi_Host *shost = class_to_shost(cdev); 456 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 457 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 458 char *str = buf; 459 int bios_index; 460 DECLARE_COMPLETION_ONSTACK(completion); 461 struct pm8001_ioctl_payload payload; 462 463 pm8001_ha->nvmd_completion = &completion; 464 payload.minor_function = 7; 465 payload.offset = 0; 466 payload.length = 4096; 467 payload.func_specific = kzalloc(4096, GFP_KERNEL); 468 if (!payload.func_specific) 469 return -ENOMEM; 470 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) { 471 kfree(payload.func_specific); 472 return -ENOMEM; 473 } 474 wait_for_completion(&completion); 475 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT; 476 bios_index++) 477 str += sprintf(str, "%c", 478 *(payload.func_specific+bios_index)); 479 kfree(payload.func_specific); 480 return str - buf; 481 } 482 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL); 483 /** 484 * event_log_size_show - event log size 485 * @cdev: pointer to embedded class device 486 * @buf: the buffer returned 487 * 488 * A sysfs read shost attribute. 489 */ 490 static ssize_t event_log_size_show(struct device *cdev, 491 struct device_attribute *attr, char *buf) 492 { 493 struct Scsi_Host *shost = class_to_shost(cdev); 494 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 495 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 496 497 return snprintf(buf, PAGE_SIZE, "%d\n", 498 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size); 499 } 500 static DEVICE_ATTR_RO(event_log_size); 501 /** 502 * pm8001_ctl_aap_log_show - IOP event log 503 * @cdev: pointer to embedded class device 504 * @buf: the buffer returned 505 * 506 * A sysfs 'read-only' shost attribute. 507 */ 508 static ssize_t pm8001_ctl_iop_log_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 char *str = buf; 515 u32 read_size = 516 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024; 517 static u32 start, end, count; 518 u32 max_read_times = 32; 519 u32 max_count = (read_size * 1024) / (max_read_times * 4); 520 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr; 521 522 if ((count % max_count) == 0) { 523 start = 0; 524 end = max_read_times; 525 count = 0; 526 } else { 527 start = end; 528 end = end + max_read_times; 529 } 530 531 for (; start < end; start++) 532 str += sprintf(str, "%08x ", *(temp+start)); 533 count++; 534 return str - buf; 535 } 536 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL); 537 538 /** 539 ** pm8001_ctl_fatal_log_show - fatal error logging 540 ** @cdev:pointer to embedded class device 541 ** @buf: the buffer returned 542 ** 543 ** A sysfs 'read-only' shost attribute. 544 **/ 545 546 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev, 547 struct device_attribute *attr, char *buf) 548 { 549 ssize_t count; 550 551 count = pm80xx_get_fatal_dump(cdev, attr, buf); 552 return count; 553 } 554 555 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL); 556 557 558 /** 559 ** pm8001_ctl_gsm_log_show - gsm dump collection 560 ** @cdev:pointer to embedded class device 561 ** @buf: the buffer returned 562 **A sysfs 'read-only' shost attribute. 563 **/ 564 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev, 565 struct device_attribute *attr, char *buf) 566 { 567 ssize_t count; 568 569 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf); 570 return count; 571 } 572 573 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL); 574 575 #define FLASH_CMD_NONE 0x00 576 #define FLASH_CMD_UPDATE 0x01 577 #define FLASH_CMD_SET_NVMD 0x02 578 579 struct flash_command { 580 u8 command[8]; 581 int code; 582 }; 583 584 static struct flash_command flash_command_table[] = 585 { 586 {"set_nvmd", FLASH_CMD_SET_NVMD}, 587 {"update", FLASH_CMD_UPDATE}, 588 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ 589 }; 590 591 struct error_fw { 592 char *reason; 593 int err_code; 594 }; 595 596 static struct error_fw flash_error_table[] = 597 { 598 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE}, 599 {"image header mismatch", FLASH_UPDATE_HDR_ERR}, 600 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR}, 601 {"image CRC Error", FLASH_UPDATE_CRC_ERR}, 602 {"image length Error.", FLASH_UPDATE_LENGTH_ERR}, 603 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR}, 604 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED}, 605 {"Flash update disabled.", FLASH_UPDATE_DISABLED}, 606 {"Flash in progress", FLASH_IN_PROGRESS}, 607 {"Image file size Error", FAIL_FILE_SIZE}, 608 {"Input parameter error", FAIL_PARAMETERS}, 609 {"Out of memory", FAIL_OUT_MEMORY}, 610 {"OK", 0} /* Last entry err_code = 0. */ 611 }; 612 613 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha) 614 { 615 struct pm8001_ioctl_payload *payload; 616 DECLARE_COMPLETION_ONSTACK(completion); 617 u8 *ioctlbuffer; 618 u32 ret; 619 u32 length = 1024 * 5 + sizeof(*payload) - 1; 620 621 if (pm8001_ha->fw_image->size > 4096) { 622 pm8001_ha->fw_status = FAIL_FILE_SIZE; 623 return -EFAULT; 624 } 625 626 ioctlbuffer = kzalloc(length, GFP_KERNEL); 627 if (!ioctlbuffer) { 628 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 629 return -ENOMEM; 630 } 631 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 632 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data, 633 pm8001_ha->fw_image->size); 634 payload->length = pm8001_ha->fw_image->size; 635 payload->id = 0; 636 payload->minor_function = 0x1; 637 pm8001_ha->nvmd_completion = &completion; 638 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload); 639 if (ret) { 640 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 641 goto out; 642 } 643 wait_for_completion(&completion); 644 out: 645 kfree(ioctlbuffer); 646 return ret; 647 } 648 649 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha) 650 { 651 struct pm8001_ioctl_payload *payload; 652 DECLARE_COMPLETION_ONSTACK(completion); 653 u8 *ioctlbuffer; 654 struct fw_control_info *fwControl; 655 u32 partitionSize, partitionSizeTmp; 656 u32 loopNumber, loopcount; 657 struct pm8001_fw_image_header *image_hdr; 658 u32 sizeRead = 0; 659 u32 ret = 0; 660 u32 length = 1024 * 16 + sizeof(*payload) - 1; 661 662 if (pm8001_ha->fw_image->size < 28) { 663 pm8001_ha->fw_status = FAIL_FILE_SIZE; 664 return -EFAULT; 665 } 666 ioctlbuffer = kzalloc(length, GFP_KERNEL); 667 if (!ioctlbuffer) { 668 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 669 return -ENOMEM; 670 } 671 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data; 672 while (sizeRead < pm8001_ha->fw_image->size) { 673 partitionSizeTmp = 674 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead); 675 partitionSize = be32_to_cpu(partitionSizeTmp); 676 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN, 677 IOCTL_BUF_SIZE); 678 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) { 679 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 680 payload->length = 1024*16; 681 payload->id = 0; 682 fwControl = 683 (struct fw_control_info *)&payload->func_specific; 684 fwControl->len = IOCTL_BUF_SIZE; /* IN */ 685 fwControl->size = partitionSize + HEADER_LEN;/* IN */ 686 fwControl->retcode = 0;/* OUT */ 687 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */ 688 689 /* for the last chunk of data in case file size is not even with 690 4k, load only the rest*/ 691 if (((loopcount-loopNumber) == 1) && 692 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) { 693 fwControl->len = 694 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 695 memcpy((u8 *)fwControl->buffer, 696 (u8 *)pm8001_ha->fw_image->data + sizeRead, 697 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE); 698 sizeRead += 699 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 700 } else { 701 memcpy((u8 *)fwControl->buffer, 702 (u8 *)pm8001_ha->fw_image->data + sizeRead, 703 IOCTL_BUF_SIZE); 704 sizeRead += IOCTL_BUF_SIZE; 705 } 706 707 pm8001_ha->nvmd_completion = &completion; 708 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload); 709 if (ret) { 710 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 711 goto out; 712 } 713 wait_for_completion(&completion); 714 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) { 715 pm8001_ha->fw_status = fwControl->retcode; 716 ret = -EFAULT; 717 goto out; 718 } 719 } 720 } 721 out: 722 kfree(ioctlbuffer); 723 return ret; 724 } 725 static ssize_t pm8001_store_update_fw(struct device *cdev, 726 struct device_attribute *attr, 727 const char *buf, size_t count) 728 { 729 struct Scsi_Host *shost = class_to_shost(cdev); 730 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 731 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 732 char *cmd_ptr, *filename_ptr; 733 int res, i; 734 int flash_command = FLASH_CMD_NONE; 735 int ret; 736 737 if (!capable(CAP_SYS_ADMIN)) 738 return -EACCES; 739 740 /* this test protects us from running two flash processes at once, 741 * so we should start with this test */ 742 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) 743 return -EINPROGRESS; 744 pm8001_ha->fw_status = FLASH_IN_PROGRESS; 745 746 cmd_ptr = kcalloc(count, 2, GFP_KERNEL); 747 if (!cmd_ptr) { 748 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 749 return -ENOMEM; 750 } 751 752 filename_ptr = cmd_ptr + count; 753 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 754 if (res != 2) { 755 pm8001_ha->fw_status = FAIL_PARAMETERS; 756 ret = -EINVAL; 757 goto out; 758 } 759 760 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 761 if (!memcmp(flash_command_table[i].command, 762 cmd_ptr, strlen(cmd_ptr))) { 763 flash_command = flash_command_table[i].code; 764 break; 765 } 766 } 767 if (flash_command == FLASH_CMD_NONE) { 768 pm8001_ha->fw_status = FAIL_PARAMETERS; 769 ret = -EINVAL; 770 goto out; 771 } 772 773 ret = request_firmware(&pm8001_ha->fw_image, 774 filename_ptr, 775 pm8001_ha->dev); 776 777 if (ret) { 778 PM8001_FAIL_DBG(pm8001_ha, 779 pm8001_printk( 780 "Failed to load firmware image file %s, error %d\n", 781 filename_ptr, ret)); 782 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE; 783 goto out; 784 } 785 786 if (FLASH_CMD_UPDATE == flash_command) 787 ret = pm8001_update_flash(pm8001_ha); 788 else 789 ret = pm8001_set_nvmd(pm8001_ha); 790 791 release_firmware(pm8001_ha->fw_image); 792 out: 793 kfree(cmd_ptr); 794 795 if (ret) 796 return ret; 797 798 pm8001_ha->fw_status = FLASH_OK; 799 return count; 800 } 801 802 static ssize_t pm8001_show_update_fw(struct device *cdev, 803 struct device_attribute *attr, char *buf) 804 { 805 int i; 806 struct Scsi_Host *shost = class_to_shost(cdev); 807 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 808 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 809 810 for (i = 0; flash_error_table[i].err_code != 0; i++) { 811 if (flash_error_table[i].err_code == pm8001_ha->fw_status) 812 break; 813 } 814 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS) 815 pm8001_ha->fw_status = FLASH_OK; 816 817 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 818 flash_error_table[i].err_code, 819 flash_error_table[i].reason); 820 } 821 822 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP, 823 pm8001_show_update_fw, pm8001_store_update_fw); 824 struct device_attribute *pm8001_host_attrs[] = { 825 &dev_attr_interface_rev, 826 &dev_attr_controller_fatal_error, 827 &dev_attr_fw_version, 828 &dev_attr_update_fw, 829 &dev_attr_aap_log, 830 &dev_attr_iop_log, 831 &dev_attr_fatal_log, 832 &dev_attr_gsm_log, 833 &dev_attr_max_out_io, 834 &dev_attr_max_devices, 835 &dev_attr_max_sg_list, 836 &dev_attr_sas_spec_support, 837 &dev_attr_logging_level, 838 &dev_attr_event_log_size, 839 &dev_attr_host_sas_address, 840 &dev_attr_bios_version, 841 &dev_attr_ib_log, 842 &dev_attr_ob_log, 843 &dev_attr_ila_version, 844 &dev_attr_inc_fw_ver, 845 NULL, 846 }; 847 848