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 * @attr: device attribute (unused) 51 * @buf: the buffer returned 52 * 53 * A sysfs 'read-only' shost attribute. 54 */ 55 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev, 56 struct device_attribute *attr, char *buf) 57 { 58 struct Scsi_Host *shost = class_to_shost(cdev); 59 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 60 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 61 62 if (pm8001_ha->chip_id == chip_8001) { 63 return snprintf(buf, PAGE_SIZE, "%d\n", 64 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev); 65 } else { 66 return snprintf(buf, PAGE_SIZE, "%d\n", 67 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev); 68 } 69 } 70 static 71 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL); 72 73 /** 74 * controller_fatal_error_show - check controller is under fatal err 75 * @cdev: pointer to embedded class device 76 * @attr: device attribute (unused) 77 * @buf: the buffer returned 78 * 79 * A sysfs 'read only' shost attribute. 80 */ 81 static ssize_t controller_fatal_error_show(struct device *cdev, 82 struct device_attribute *attr, char *buf) 83 { 84 struct Scsi_Host *shost = class_to_shost(cdev); 85 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 86 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 87 88 return snprintf(buf, PAGE_SIZE, "%d\n", 89 pm8001_ha->controller_fatal_error); 90 } 91 static DEVICE_ATTR_RO(controller_fatal_error); 92 93 /** 94 * pm8001_ctl_fw_version_show - firmware version 95 * @cdev: pointer to embedded class device 96 * @attr: device attribute (unused) 97 * @buf: the buffer returned 98 * 99 * A sysfs 'read-only' shost attribute. 100 */ 101 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev, 102 struct device_attribute *attr, char *buf) 103 { 104 struct Scsi_Host *shost = class_to_shost(cdev); 105 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 106 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 107 108 if (pm8001_ha->chip_id == chip_8001) { 109 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 110 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24), 111 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16), 112 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8), 113 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev)); 114 } else { 115 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 116 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24), 117 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16), 118 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8), 119 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev)); 120 } 121 } 122 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL); 123 124 /** 125 * pm8001_ctl_ila_version_show - ila version 126 * @cdev: pointer to embedded class device 127 * @attr: device attribute (unused) 128 * @buf: the buffer returned 129 * 130 * A sysfs 'read-only' shost attribute. 131 */ 132 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev, 133 struct device_attribute *attr, char *buf) 134 { 135 struct Scsi_Host *shost = class_to_shost(cdev); 136 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 137 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 138 139 if (pm8001_ha->chip_id != chip_8001) { 140 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 141 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24), 142 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16), 143 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8), 144 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version)); 145 } 146 return 0; 147 } 148 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL); 149 150 /** 151 * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number 152 * @cdev: pointer to embedded class device 153 * @attr: device attribute (unused) 154 * @buf: the buffer returned 155 * 156 * A sysfs 'read-only' shost attribute. 157 */ 158 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev, 159 struct device_attribute *attr, char *buf) 160 { 161 struct Scsi_Host *shost = class_to_shost(cdev); 162 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 163 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 164 165 if (pm8001_ha->chip_id != chip_8001) { 166 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 167 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24), 168 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16), 169 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8), 170 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version)); 171 } 172 return 0; 173 } 174 static 175 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL); 176 177 /** 178 * pm8001_ctl_max_out_io_show - max outstanding io supported 179 * @cdev: pointer to embedded class device 180 * @attr: device attribute (unused) 181 * @buf: the buffer returned 182 * 183 * A sysfs 'read-only' shost attribute. 184 */ 185 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev, 186 struct device_attribute *attr, char *buf) 187 { 188 struct Scsi_Host *shost = class_to_shost(cdev); 189 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 190 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 191 192 if (pm8001_ha->chip_id == chip_8001) { 193 return snprintf(buf, PAGE_SIZE, "%d\n", 194 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io); 195 } else { 196 return snprintf(buf, PAGE_SIZE, "%d\n", 197 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io); 198 } 199 } 200 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL); 201 /** 202 * pm8001_ctl_max_devices_show - max devices support 203 * @cdev: pointer to embedded class device 204 * @attr: device attribute (unused) 205 * @buf: the buffer returned 206 * 207 * A sysfs 'read-only' shost attribute. 208 */ 209 static ssize_t pm8001_ctl_max_devices_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 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16) 219 ); 220 } else { 221 return snprintf(buf, PAGE_SIZE, "%04d\n", 222 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16) 223 ); 224 } 225 } 226 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL); 227 /** 228 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no 229 * hardware limitation 230 * @cdev: pointer to embedded class device 231 * @attr: device attribute (unused) 232 * @buf: the buffer returned 233 * 234 * A sysfs 'read-only' shost attribute. 235 */ 236 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev, 237 struct device_attribute *attr, char *buf) 238 { 239 struct Scsi_Host *shost = class_to_shost(cdev); 240 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 241 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 242 243 if (pm8001_ha->chip_id == chip_8001) { 244 return snprintf(buf, PAGE_SIZE, "%04d\n", 245 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF 246 ); 247 } else { 248 return snprintf(buf, PAGE_SIZE, "%04d\n", 249 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF 250 ); 251 } 252 } 253 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL); 254 255 #define SAS_1_0 0x1 256 #define SAS_1_1 0x2 257 #define SAS_2_0 0x4 258 259 static ssize_t 260 show_sas_spec_support_status(unsigned int mode, char *buf) 261 { 262 ssize_t len = 0; 263 264 if (mode & SAS_1_1) 265 len = sprintf(buf, "%s", "SAS1.1"); 266 if (mode & SAS_2_0) 267 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0"); 268 len += sprintf(buf + len, "\n"); 269 270 return len; 271 } 272 273 /** 274 * pm8001_ctl_sas_spec_support_show - sas spec supported 275 * @cdev: pointer to embedded class device 276 * @attr: device attribute (unused) 277 * @buf: the buffer returned 278 * 279 * A sysfs 'read-only' shost attribute. 280 */ 281 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev, 282 struct device_attribute *attr, char *buf) 283 { 284 unsigned int mode; 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 /* fe000000 means supports SAS2.1 */ 289 if (pm8001_ha->chip_id == chip_8001) 290 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag & 291 0xfe000000)>>25; 292 else 293 /* fe000000 means supports SAS2.1 */ 294 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag & 295 0xfe000000)>>25; 296 return show_sas_spec_support_status(mode, buf); 297 } 298 static DEVICE_ATTR(sas_spec_support, S_IRUGO, 299 pm8001_ctl_sas_spec_support_show, NULL); 300 301 /** 302 * pm8001_ctl_sas_address_show - sas address 303 * @cdev: pointer to embedded class device 304 * @attr: device attribute (unused) 305 * @buf: the buffer returned 306 * 307 * This is the controller sas address 308 * 309 * A sysfs 'read-only' shost attribute. 310 */ 311 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev, 312 struct device_attribute *attr, char *buf) 313 { 314 struct Scsi_Host *shost = class_to_shost(cdev); 315 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 316 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 317 return snprintf(buf, PAGE_SIZE, "0x%016llx\n", 318 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr)); 319 } 320 static DEVICE_ATTR(host_sas_address, S_IRUGO, 321 pm8001_ctl_host_sas_address_show, NULL); 322 323 /** 324 * pm8001_ctl_logging_level_show - logging level 325 * @cdev: pointer to embedded class device 326 * @attr: device attribute (unused) 327 * @buf: the buffer returned 328 * 329 * A sysfs 'read/write' shost attribute. 330 */ 331 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev, 332 struct device_attribute *attr, char *buf) 333 { 334 struct Scsi_Host *shost = class_to_shost(cdev); 335 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 336 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 337 338 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level); 339 } 340 341 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev, 342 struct device_attribute *attr, const char *buf, size_t count) 343 { 344 struct Scsi_Host *shost = class_to_shost(cdev); 345 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 346 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 347 int val = 0; 348 349 if (sscanf(buf, "%x", &val) != 1) 350 return -EINVAL; 351 352 pm8001_ha->logging_level = val; 353 return strlen(buf); 354 } 355 356 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, 357 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store); 358 /** 359 * pm8001_ctl_aap_log_show - aap1 event log 360 * @cdev: pointer to embedded class device 361 * @attr: device attribute (unused) 362 * @buf: the buffer returned 363 * 364 * A sysfs 'read-only' shost attribute. 365 */ 366 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev, 367 struct device_attribute *attr, char *buf) 368 { 369 struct Scsi_Host *shost = class_to_shost(cdev); 370 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 371 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 372 int i; 373 #define AAP1_MEMMAP(r, c) \ 374 (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \ 375 + (c))) 376 377 char *str = buf; 378 int max = 2; 379 for (i = 0; i < max; i++) { 380 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x" 381 "0x%08x 0x%08x\n", 382 AAP1_MEMMAP(i, 0), 383 AAP1_MEMMAP(i, 4), 384 AAP1_MEMMAP(i, 8), 385 AAP1_MEMMAP(i, 12), 386 AAP1_MEMMAP(i, 16), 387 AAP1_MEMMAP(i, 20), 388 AAP1_MEMMAP(i, 24), 389 AAP1_MEMMAP(i, 28)); 390 } 391 392 return str - buf; 393 } 394 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); 395 /** 396 * pm8001_ctl_ib_queue_log_show - Out bound Queue log 397 * @cdev:pointer to embedded class device 398 * @attr: device attribute (unused) 399 * @buf: the buffer returned 400 * A sysfs 'read-only' shost attribute. 401 */ 402 static ssize_t pm8001_ctl_ib_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 IB_MEMMAP(c) \ 412 (*(u32 *)((u8 *)pm8001_ha-> \ 413 memoryMap.region[IB].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 */ 435 436 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 #define OB_MEMMAP(c) \ 446 (*(u32 *)((u8 *)pm8001_ha-> \ 447 memoryMap.region[OB].virt_ptr + \ 448 pm8001_ha->evtlog_ob_offset + (c))) 449 450 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 451 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start)); 452 start = start + 4; 453 } 454 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET; 455 if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0) 456 pm8001_ha->evtlog_ob_offset = 0; 457 458 return str - buf; 459 } 460 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL); 461 /** 462 * pm8001_ctl_bios_version_show - Bios version Display 463 * @cdev:pointer to embedded class device 464 * @attr: device attribute (unused) 465 * @buf:the buffer returned 466 * A sysfs 'read-only' shost attribute. 467 */ 468 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, 469 struct device_attribute *attr, char *buf) 470 { 471 struct Scsi_Host *shost = class_to_shost(cdev); 472 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 473 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 474 char *str = buf; 475 int bios_index; 476 DECLARE_COMPLETION_ONSTACK(completion); 477 struct pm8001_ioctl_payload payload; 478 479 pm8001_ha->nvmd_completion = &completion; 480 payload.minor_function = 7; 481 payload.offset = 0; 482 payload.rd_length = 4096; 483 payload.func_specific = kzalloc(4096, GFP_KERNEL); 484 if (!payload.func_specific) 485 return -ENOMEM; 486 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) { 487 kfree(payload.func_specific); 488 return -ENOMEM; 489 } 490 wait_for_completion(&completion); 491 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT; 492 bios_index++) 493 str += sprintf(str, "%c", 494 *(payload.func_specific+bios_index)); 495 kfree(payload.func_specific); 496 return str - buf; 497 } 498 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL); 499 /** 500 * event_log_size_show - event log size 501 * @cdev: pointer to embedded class device 502 * @attr: device attribute (unused) 503 * @buf: the buffer returned 504 * 505 * A sysfs read shost attribute. 506 */ 507 static ssize_t event_log_size_show(struct device *cdev, 508 struct device_attribute *attr, char *buf) 509 { 510 struct Scsi_Host *shost = class_to_shost(cdev); 511 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 512 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 513 514 return snprintf(buf, PAGE_SIZE, "%d\n", 515 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size); 516 } 517 static DEVICE_ATTR_RO(event_log_size); 518 /** 519 * pm8001_ctl_aap_log_show - IOP event log 520 * @cdev: pointer to embedded class device 521 * @attr: device attribute (unused) 522 * @buf: the buffer returned 523 * 524 * A sysfs 'read-only' shost attribute. 525 */ 526 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev, 527 struct device_attribute *attr, char *buf) 528 { 529 struct Scsi_Host *shost = class_to_shost(cdev); 530 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 531 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 532 char *str = buf; 533 u32 read_size = 534 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024; 535 static u32 start, end, count; 536 u32 max_read_times = 32; 537 u32 max_count = (read_size * 1024) / (max_read_times * 4); 538 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr; 539 540 if ((count % max_count) == 0) { 541 start = 0; 542 end = max_read_times; 543 count = 0; 544 } else { 545 start = end; 546 end = end + max_read_times; 547 } 548 549 for (; start < end; start++) 550 str += sprintf(str, "%08x ", *(temp+start)); 551 count++; 552 return str - buf; 553 } 554 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL); 555 556 /** 557 ** pm8001_ctl_fatal_log_show - fatal error logging 558 ** @cdev:pointer to embedded class device 559 ** @attr: device attribute 560 ** @buf: the buffer returned 561 ** 562 ** A sysfs 'read-only' shost attribute. 563 **/ 564 565 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev, 566 struct device_attribute *attr, char *buf) 567 { 568 ssize_t count; 569 570 count = pm80xx_get_fatal_dump(cdev, attr, buf); 571 return count; 572 } 573 574 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL); 575 576 /** 577 ** non_fatal_log_show - non fatal error logging 578 ** @cdev:pointer to embedded class device 579 ** @attr: device attribute 580 ** @buf: the buffer returned 581 ** 582 ** A sysfs 'read-only' shost attribute. 583 **/ 584 static ssize_t non_fatal_log_show(struct device *cdev, 585 struct device_attribute *attr, char *buf) 586 { 587 u32 count; 588 589 count = pm80xx_get_non_fatal_dump(cdev, attr, buf); 590 return count; 591 } 592 static DEVICE_ATTR_RO(non_fatal_log); 593 594 static ssize_t non_fatal_count_show(struct device *cdev, 595 struct device_attribute *attr, char *buf) 596 { 597 struct Scsi_Host *shost = class_to_shost(cdev); 598 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 599 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 600 601 return snprintf(buf, PAGE_SIZE, "%08x", 602 pm8001_ha->non_fatal_count); 603 } 604 605 static ssize_t non_fatal_count_store(struct device *cdev, 606 struct device_attribute *attr, const char *buf, size_t count) 607 { 608 struct Scsi_Host *shost = class_to_shost(cdev); 609 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 610 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 611 int val = 0; 612 613 if (kstrtoint(buf, 16, &val) != 0) 614 return -EINVAL; 615 616 pm8001_ha->non_fatal_count = val; 617 return strlen(buf); 618 } 619 static DEVICE_ATTR_RW(non_fatal_count); 620 621 /** 622 ** pm8001_ctl_gsm_log_show - gsm dump collection 623 ** @cdev:pointer to embedded class device 624 ** @attr: device attribute (unused) 625 ** @buf: the buffer returned 626 ** A sysfs 'read-only' shost attribute. 627 **/ 628 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev, 629 struct device_attribute *attr, char *buf) 630 { 631 ssize_t count; 632 633 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf); 634 return count; 635 } 636 637 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL); 638 639 #define FLASH_CMD_NONE 0x00 640 #define FLASH_CMD_UPDATE 0x01 641 #define FLASH_CMD_SET_NVMD 0x02 642 643 struct flash_command { 644 u8 command[8]; 645 int code; 646 }; 647 648 static struct flash_command flash_command_table[] = 649 { 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 struct error_fw flash_error_table[] = 661 { 662 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE}, 663 {"image header mismatch", FLASH_UPDATE_HDR_ERR}, 664 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR}, 665 {"image CRC Error", FLASH_UPDATE_CRC_ERR}, 666 {"image length Error.", FLASH_UPDATE_LENGTH_ERR}, 667 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR}, 668 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED}, 669 {"Flash update disabled.", FLASH_UPDATE_DISABLED}, 670 {"Flash in progress", FLASH_IN_PROGRESS}, 671 {"Image file size Error", FAIL_FILE_SIZE}, 672 {"Input parameter error", FAIL_PARAMETERS}, 673 {"Out of memory", FAIL_OUT_MEMORY}, 674 {"OK", 0} /* Last entry err_code = 0. */ 675 }; 676 677 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha) 678 { 679 struct pm8001_ioctl_payload *payload; 680 DECLARE_COMPLETION_ONSTACK(completion); 681 u8 *ioctlbuffer; 682 u32 ret; 683 u32 length = 1024 * 5 + sizeof(*payload) - 1; 684 685 if (pm8001_ha->fw_image->size > 4096) { 686 pm8001_ha->fw_status = FAIL_FILE_SIZE; 687 return -EFAULT; 688 } 689 690 ioctlbuffer = kzalloc(length, GFP_KERNEL); 691 if (!ioctlbuffer) { 692 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 693 return -ENOMEM; 694 } 695 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 696 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data, 697 pm8001_ha->fw_image->size); 698 payload->wr_length = pm8001_ha->fw_image->size; 699 payload->id = 0; 700 payload->minor_function = 0x1; 701 pm8001_ha->nvmd_completion = &completion; 702 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload); 703 if (ret) { 704 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 705 goto out; 706 } 707 wait_for_completion(&completion); 708 out: 709 kfree(ioctlbuffer); 710 return ret; 711 } 712 713 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha) 714 { 715 struct pm8001_ioctl_payload *payload; 716 DECLARE_COMPLETION_ONSTACK(completion); 717 u8 *ioctlbuffer; 718 struct fw_control_info *fwControl; 719 u32 partitionSize, partitionSizeTmp; 720 u32 loopNumber, loopcount; 721 struct pm8001_fw_image_header *image_hdr; 722 u32 sizeRead = 0; 723 u32 ret = 0; 724 u32 length = 1024 * 16 + sizeof(*payload) - 1; 725 726 if (pm8001_ha->fw_image->size < 28) { 727 pm8001_ha->fw_status = FAIL_FILE_SIZE; 728 return -EFAULT; 729 } 730 ioctlbuffer = kzalloc(length, GFP_KERNEL); 731 if (!ioctlbuffer) { 732 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 733 return -ENOMEM; 734 } 735 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data; 736 while (sizeRead < pm8001_ha->fw_image->size) { 737 partitionSizeTmp = 738 *(u32 *)((u8 *)&image_hdr->image_length + sizeRead); 739 partitionSize = be32_to_cpu(partitionSizeTmp); 740 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN, 741 IOCTL_BUF_SIZE); 742 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) { 743 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 744 payload->wr_length = 1024*16; 745 payload->id = 0; 746 fwControl = 747 (struct fw_control_info *)&payload->func_specific; 748 fwControl->len = IOCTL_BUF_SIZE; /* IN */ 749 fwControl->size = partitionSize + HEADER_LEN;/* IN */ 750 fwControl->retcode = 0;/* OUT */ 751 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */ 752 753 /* for the last chunk of data in case file size is not even with 754 4k, load only the rest*/ 755 if (((loopcount-loopNumber) == 1) && 756 ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) { 757 fwControl->len = 758 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 759 memcpy((u8 *)fwControl->buffer, 760 (u8 *)pm8001_ha->fw_image->data + sizeRead, 761 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE); 762 sizeRead += 763 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 764 } else { 765 memcpy((u8 *)fwControl->buffer, 766 (u8 *)pm8001_ha->fw_image->data + sizeRead, 767 IOCTL_BUF_SIZE); 768 sizeRead += IOCTL_BUF_SIZE; 769 } 770 771 pm8001_ha->nvmd_completion = &completion; 772 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload); 773 if (ret) { 774 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 775 goto out; 776 } 777 wait_for_completion(&completion); 778 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) { 779 pm8001_ha->fw_status = fwControl->retcode; 780 ret = -EFAULT; 781 goto out; 782 } 783 } 784 } 785 out: 786 kfree(ioctlbuffer); 787 return ret; 788 } 789 static ssize_t pm8001_store_update_fw(struct device *cdev, 790 struct device_attribute *attr, 791 const char *buf, size_t count) 792 { 793 struct Scsi_Host *shost = class_to_shost(cdev); 794 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 795 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 796 char *cmd_ptr, *filename_ptr; 797 int res, i; 798 int flash_command = FLASH_CMD_NONE; 799 int ret; 800 801 if (!capable(CAP_SYS_ADMIN)) 802 return -EACCES; 803 804 /* this test protects us from running two flash processes at once, 805 * so we should start with this test */ 806 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) 807 return -EINPROGRESS; 808 pm8001_ha->fw_status = FLASH_IN_PROGRESS; 809 810 cmd_ptr = kcalloc(count, 2, GFP_KERNEL); 811 if (!cmd_ptr) { 812 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 813 return -ENOMEM; 814 } 815 816 filename_ptr = cmd_ptr + count; 817 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 818 if (res != 2) { 819 pm8001_ha->fw_status = FAIL_PARAMETERS; 820 ret = -EINVAL; 821 goto out; 822 } 823 824 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 825 if (!memcmp(flash_command_table[i].command, 826 cmd_ptr, strlen(cmd_ptr))) { 827 flash_command = flash_command_table[i].code; 828 break; 829 } 830 } 831 if (flash_command == FLASH_CMD_NONE) { 832 pm8001_ha->fw_status = FAIL_PARAMETERS; 833 ret = -EINVAL; 834 goto out; 835 } 836 837 ret = request_firmware(&pm8001_ha->fw_image, 838 filename_ptr, 839 pm8001_ha->dev); 840 841 if (ret) { 842 PM8001_FAIL_DBG(pm8001_ha, 843 pm8001_printk( 844 "Failed to load firmware image file %s, error %d\n", 845 filename_ptr, ret)); 846 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE; 847 goto out; 848 } 849 850 if (FLASH_CMD_UPDATE == flash_command) 851 ret = pm8001_update_flash(pm8001_ha); 852 else 853 ret = pm8001_set_nvmd(pm8001_ha); 854 855 release_firmware(pm8001_ha->fw_image); 856 out: 857 kfree(cmd_ptr); 858 859 if (ret) 860 return ret; 861 862 pm8001_ha->fw_status = FLASH_OK; 863 return count; 864 } 865 866 static ssize_t pm8001_show_update_fw(struct device *cdev, 867 struct device_attribute *attr, char *buf) 868 { 869 int i; 870 struct Scsi_Host *shost = class_to_shost(cdev); 871 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 872 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 873 874 for (i = 0; flash_error_table[i].err_code != 0; i++) { 875 if (flash_error_table[i].err_code == pm8001_ha->fw_status) 876 break; 877 } 878 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS) 879 pm8001_ha->fw_status = FLASH_OK; 880 881 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 882 flash_error_table[i].err_code, 883 flash_error_table[i].reason); 884 } 885 886 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP, 887 pm8001_show_update_fw, pm8001_store_update_fw); 888 struct device_attribute *pm8001_host_attrs[] = { 889 &dev_attr_interface_rev, 890 &dev_attr_controller_fatal_error, 891 &dev_attr_fw_version, 892 &dev_attr_update_fw, 893 &dev_attr_aap_log, 894 &dev_attr_iop_log, 895 &dev_attr_fatal_log, 896 &dev_attr_non_fatal_log, 897 &dev_attr_non_fatal_count, 898 &dev_attr_gsm_log, 899 &dev_attr_max_out_io, 900 &dev_attr_max_devices, 901 &dev_attr_max_sg_list, 902 &dev_attr_sas_spec_support, 903 &dev_attr_logging_level, 904 &dev_attr_event_log_size, 905 &dev_attr_host_sas_address, 906 &dev_attr_bios_version, 907 &dev_attr_ib_log, 908 &dev_attr_ob_log, 909 &dev_attr_ila_version, 910 &dev_attr_inc_fw_ver, 911 NULL, 912 }; 913 914