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 */ 56 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev, 57 struct device_attribute *attr, char *buf) 58 { 59 struct Scsi_Host *shost = class_to_shost(cdev); 60 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 61 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 62 63 if (pm8001_ha->chip_id == chip_8001) { 64 return snprintf(buf, PAGE_SIZE, "%d\n", 65 pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev); 66 } else { 67 return snprintf(buf, PAGE_SIZE, "%d\n", 68 pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev); 69 } 70 } 71 static 72 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL); 73 74 /** 75 * controller_fatal_error_show - check controller is under fatal err 76 * @cdev: pointer to embedded class device 77 * @attr: device attribute (unused) 78 * @buf: the buffer returned 79 * 80 * A sysfs 'read-only' shost attribute. 81 */ 82 static ssize_t controller_fatal_error_show(struct device *cdev, 83 struct device_attribute *attr, char *buf) 84 { 85 struct Scsi_Host *shost = class_to_shost(cdev); 86 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 87 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 88 89 return snprintf(buf, PAGE_SIZE, "%d\n", 90 pm8001_ha->controller_fatal_error); 91 } 92 static DEVICE_ATTR_RO(controller_fatal_error); 93 94 /** 95 * pm8001_ctl_fw_version_show - firmware version 96 * @cdev: pointer to embedded class device 97 * @attr: device attribute (unused) 98 * @buf: the buffer returned 99 * 100 * A sysfs 'read-only' shost attribute. 101 */ 102 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev, 103 struct device_attribute *attr, char *buf) 104 { 105 struct Scsi_Host *shost = class_to_shost(cdev); 106 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 107 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 108 109 if (pm8001_ha->chip_id == chip_8001) { 110 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 111 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24), 112 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16), 113 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8), 114 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev)); 115 } else { 116 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 117 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24), 118 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16), 119 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8), 120 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev)); 121 } 122 } 123 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL); 124 125 /** 126 * pm8001_ctl_ila_version_show - ila version 127 * @cdev: pointer to embedded class device 128 * @attr: device attribute (unused) 129 * @buf: the buffer returned 130 * 131 * A sysfs 'read-only' shost attribute. 132 */ 133 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev, 134 struct device_attribute *attr, char *buf) 135 { 136 struct Scsi_Host *shost = class_to_shost(cdev); 137 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 138 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 139 140 if (pm8001_ha->chip_id != chip_8001) { 141 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 142 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24), 143 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16), 144 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8), 145 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version)); 146 } 147 return 0; 148 } 149 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL); 150 151 /** 152 * pm8001_ctl_inactive_fw_version_show - 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 */ 159 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev, 160 struct device_attribute *attr, char *buf) 161 { 162 struct Scsi_Host *shost = class_to_shost(cdev); 163 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 164 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 165 166 if (pm8001_ha->chip_id != chip_8001) { 167 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", 168 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24), 169 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16), 170 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8), 171 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version)); 172 } 173 return 0; 174 } 175 static 176 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL); 177 178 /** 179 * pm8001_ctl_max_out_io_show - max outstanding io supported 180 * @cdev: pointer to embedded class device 181 * @attr: device attribute (unused) 182 * @buf: the buffer returned 183 * 184 * A sysfs 'read-only' shost attribute. 185 */ 186 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev, 187 struct device_attribute *attr, char *buf) 188 { 189 struct Scsi_Host *shost = class_to_shost(cdev); 190 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 191 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 192 193 if (pm8001_ha->chip_id == chip_8001) { 194 return snprintf(buf, PAGE_SIZE, "%d\n", 195 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io); 196 } else { 197 return snprintf(buf, PAGE_SIZE, "%d\n", 198 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io); 199 } 200 } 201 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL); 202 /** 203 * pm8001_ctl_max_devices_show - max devices support 204 * @cdev: pointer to embedded class device 205 * @attr: device attribute (unused) 206 * @buf: the buffer returned 207 * 208 * A sysfs 'read-only' shost attribute. 209 */ 210 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev, 211 struct device_attribute *attr, char *buf) 212 { 213 struct Scsi_Host *shost = class_to_shost(cdev); 214 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 215 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 216 217 if (pm8001_ha->chip_id == chip_8001) { 218 return snprintf(buf, PAGE_SIZE, "%04d\n", 219 (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16) 220 ); 221 } else { 222 return snprintf(buf, PAGE_SIZE, "%04d\n", 223 (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16) 224 ); 225 } 226 } 227 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL); 228 /** 229 * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no 230 * hardware limitation 231 * @cdev: pointer to embedded class device 232 * @attr: device attribute (unused) 233 * @buf: the buffer returned 234 * 235 * A sysfs 'read-only' shost attribute. 236 */ 237 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev, 238 struct device_attribute *attr, char *buf) 239 { 240 struct Scsi_Host *shost = class_to_shost(cdev); 241 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 242 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 243 244 if (pm8001_ha->chip_id == chip_8001) { 245 return snprintf(buf, PAGE_SIZE, "%04d\n", 246 pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF 247 ); 248 } else { 249 return snprintf(buf, PAGE_SIZE, "%04d\n", 250 pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF 251 ); 252 } 253 } 254 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL); 255 256 #define SAS_1_0 0x1 257 #define SAS_1_1 0x2 258 #define SAS_2_0 0x4 259 260 static ssize_t 261 show_sas_spec_support_status(unsigned int mode, char *buf) 262 { 263 ssize_t len = 0; 264 265 if (mode & SAS_1_1) 266 len = sprintf(buf, "%s", "SAS1.1"); 267 if (mode & SAS_2_0) 268 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0"); 269 len += sprintf(buf + len, "\n"); 270 271 return len; 272 } 273 274 /** 275 * pm8001_ctl_sas_spec_support_show - sas spec supported 276 * @cdev: pointer to embedded class device 277 * @attr: device attribute (unused) 278 * @buf: the buffer returned 279 * 280 * A sysfs 'read-only' shost attribute. 281 */ 282 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev, 283 struct device_attribute *attr, char *buf) 284 { 285 unsigned int mode; 286 struct Scsi_Host *shost = class_to_shost(cdev); 287 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 288 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 289 /* fe000000 means supports SAS2.1 */ 290 if (pm8001_ha->chip_id == chip_8001) 291 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag & 292 0xfe000000)>>25; 293 else 294 /* fe000000 means supports SAS2.1 */ 295 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag & 296 0xfe000000)>>25; 297 return show_sas_spec_support_status(mode, buf); 298 } 299 static DEVICE_ATTR(sas_spec_support, S_IRUGO, 300 pm8001_ctl_sas_spec_support_show, NULL); 301 302 /** 303 * pm8001_ctl_host_sas_address_show - sas address 304 * @cdev: pointer to embedded class device 305 * @attr: device attribute (unused) 306 * @buf: the buffer returned 307 * 308 * This is the controller sas address 309 * 310 * A sysfs 'read-only' shost attribute. 311 */ 312 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev, 313 struct device_attribute *attr, char *buf) 314 { 315 struct Scsi_Host *shost = class_to_shost(cdev); 316 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 317 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 318 return snprintf(buf, PAGE_SIZE, "0x%016llx\n", 319 be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr)); 320 } 321 static DEVICE_ATTR(host_sas_address, S_IRUGO, 322 pm8001_ctl_host_sas_address_show, NULL); 323 324 /** 325 * pm8001_ctl_logging_level_show - logging level 326 * @cdev: pointer to embedded class device 327 * @attr: device attribute (unused) 328 * @buf: the buffer returned 329 * 330 * A sysfs 'read/write' shost attribute. 331 */ 332 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev, 333 struct device_attribute *attr, char *buf) 334 { 335 struct Scsi_Host *shost = class_to_shost(cdev); 336 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 337 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 338 339 return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level); 340 } 341 342 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev, 343 struct device_attribute *attr, const char *buf, size_t count) 344 { 345 struct Scsi_Host *shost = class_to_shost(cdev); 346 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 347 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 348 int val = 0; 349 350 if (sscanf(buf, "%x", &val) != 1) 351 return -EINVAL; 352 353 pm8001_ha->logging_level = val; 354 return strlen(buf); 355 } 356 357 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, 358 pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store); 359 /** 360 * pm8001_ctl_aap_log_show - aap1 event log 361 * @cdev: pointer to embedded class device 362 * @attr: device attribute (unused) 363 * @buf: the buffer returned 364 * 365 * A sysfs 'read-only' shost attribute. 366 */ 367 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev, 368 struct device_attribute *attr, char *buf) 369 { 370 struct Scsi_Host *shost = class_to_shost(cdev); 371 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 372 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 373 u8 *ptr = (u8 *)pm8001_ha->memoryMap.region[AAP1].virt_ptr; 374 int i; 375 376 char *str = buf; 377 int max = 2; 378 for (i = 0; i < max; i++) { 379 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x" 380 "0x%08x 0x%08x\n", 381 pm8001_ctl_aap1_memmap(ptr, i, 0), 382 pm8001_ctl_aap1_memmap(ptr, i, 4), 383 pm8001_ctl_aap1_memmap(ptr, i, 8), 384 pm8001_ctl_aap1_memmap(ptr, i, 12), 385 pm8001_ctl_aap1_memmap(ptr, i, 16), 386 pm8001_ctl_aap1_memmap(ptr, i, 20), 387 pm8001_ctl_aap1_memmap(ptr, i, 24), 388 pm8001_ctl_aap1_memmap(ptr, i, 28)); 389 } 390 391 return str - buf; 392 } 393 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); 394 /** 395 * pm8001_ctl_ib_queue_log_show - Out bound Queue log 396 * @cdev:pointer to embedded class device 397 * @attr: device attribute (unused) 398 * @buf: the buffer returned 399 * 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 u32 ib_offset = pm8001_ha->ib_offset; 412 u32 queue_size = pm8001_ha->max_q_num * PM8001_MPI_QUEUE * 128; 413 #define IB_MEMMAP(c) \ 414 (*(u32 *)((u8 *)pm8001_ha-> \ 415 memoryMap.region[ib_offset].virt_ptr + \ 416 pm8001_ha->evtlog_ib_offset + (c))) 417 418 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 419 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start)); 420 start = start + 4; 421 } 422 pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET; 423 if (((pm8001_ha->evtlog_ib_offset) % queue_size) == 0) 424 pm8001_ha->evtlog_ib_offset = 0; 425 426 return str - buf; 427 } 428 429 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL); 430 /** 431 * pm8001_ctl_ob_queue_log_show - Out bound Queue log 432 * @cdev:pointer to embedded class device 433 * @attr: device attribute (unused) 434 * @buf: the buffer returned 435 * 436 * A sysfs 'read-only' shost attribute. 437 */ 438 439 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev, 440 struct device_attribute *attr, char *buf) 441 { 442 struct Scsi_Host *shost = class_to_shost(cdev); 443 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 444 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 445 int offset; 446 char *str = buf; 447 int start = 0; 448 u32 ob_offset = pm8001_ha->ob_offset; 449 u32 queue_size = pm8001_ha->max_q_num * PM8001_MPI_QUEUE * 128; 450 #define OB_MEMMAP(c) \ 451 (*(u32 *)((u8 *)pm8001_ha-> \ 452 memoryMap.region[ob_offset].virt_ptr + \ 453 pm8001_ha->evtlog_ob_offset + (c))) 454 455 for (offset = 0; offset < IB_OB_READ_TIMES; offset++) { 456 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start)); 457 start = start + 4; 458 } 459 pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET; 460 if (((pm8001_ha->evtlog_ob_offset) % queue_size) == 0) 461 pm8001_ha->evtlog_ob_offset = 0; 462 463 return str - buf; 464 } 465 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL); 466 /** 467 * pm8001_ctl_bios_version_show - Bios version Display 468 * @cdev:pointer to embedded class device 469 * @attr: device attribute (unused) 470 * @buf:the buffer returned 471 * 472 * A sysfs 'read-only' shost attribute. 473 */ 474 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, 475 struct device_attribute *attr, char *buf) 476 { 477 struct Scsi_Host *shost = class_to_shost(cdev); 478 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 479 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 480 char *str = buf; 481 int bios_index; 482 DECLARE_COMPLETION_ONSTACK(completion); 483 struct pm8001_ioctl_payload payload; 484 485 pm8001_ha->nvmd_completion = &completion; 486 payload.minor_function = 7; 487 payload.offset = 0; 488 payload.rd_length = 4096; 489 payload.func_specific = kzalloc(4096, GFP_KERNEL); 490 if (!payload.func_specific) 491 return -ENOMEM; 492 if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) { 493 kfree(payload.func_specific); 494 return -ENOMEM; 495 } 496 wait_for_completion(&completion); 497 for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT; 498 bios_index++) 499 str += sprintf(str, "%c", 500 *(payload.func_specific+bios_index)); 501 kfree(payload.func_specific); 502 return str - buf; 503 } 504 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL); 505 /** 506 * event_log_size_show - event log size 507 * @cdev: pointer to embedded class device 508 * @attr: device attribute (unused) 509 * @buf: the buffer returned 510 * 511 * A sysfs read shost attribute. 512 */ 513 static ssize_t event_log_size_show(struct device *cdev, 514 struct device_attribute *attr, char *buf) 515 { 516 struct Scsi_Host *shost = class_to_shost(cdev); 517 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 518 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 519 520 return snprintf(buf, PAGE_SIZE, "%d\n", 521 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size); 522 } 523 static DEVICE_ATTR_RO(event_log_size); 524 /** 525 * pm8001_ctl_iop_log_show - IOP event log 526 * @cdev: pointer to embedded class device 527 * @attr: device attribute (unused) 528 * @buf: the buffer returned 529 * 530 * A sysfs 'read-only' shost attribute. 531 */ 532 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev, 533 struct device_attribute *attr, char *buf) 534 { 535 struct Scsi_Host *shost = class_to_shost(cdev); 536 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 537 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 538 char *str = buf; 539 u32 read_size = 540 pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size / 1024; 541 static u32 start, end, count; 542 u32 max_read_times = 32; 543 u32 max_count = (read_size * 1024) / (max_read_times * 4); 544 u32 *temp = (u32 *)pm8001_ha->memoryMap.region[IOP].virt_ptr; 545 546 if ((count % max_count) == 0) { 547 start = 0; 548 end = max_read_times; 549 count = 0; 550 } else { 551 start = end; 552 end = end + max_read_times; 553 } 554 555 for (; start < end; start++) 556 str += sprintf(str, "%08x ", *(temp+start)); 557 count++; 558 return str - buf; 559 } 560 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL); 561 562 /** 563 * pm8001_ctl_fatal_log_show - fatal error logging 564 * @cdev:pointer to embedded class device 565 * @attr: device attribute 566 * @buf: the buffer returned 567 * 568 * A sysfs 'read-only' shost attribute. 569 */ 570 571 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev, 572 struct device_attribute *attr, char *buf) 573 { 574 ssize_t count; 575 576 count = pm80xx_get_fatal_dump(cdev, attr, buf); 577 return count; 578 } 579 580 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL); 581 582 /** 583 * non_fatal_log_show - non fatal error logging 584 * @cdev:pointer to embedded class device 585 * @attr: device attribute 586 * @buf: the buffer returned 587 * 588 * A sysfs 'read-only' shost attribute. 589 */ 590 static ssize_t non_fatal_log_show(struct device *cdev, 591 struct device_attribute *attr, char *buf) 592 { 593 u32 count; 594 595 count = pm80xx_get_non_fatal_dump(cdev, attr, buf); 596 return count; 597 } 598 static DEVICE_ATTR_RO(non_fatal_log); 599 600 static ssize_t non_fatal_count_show(struct device *cdev, 601 struct device_attribute *attr, char *buf) 602 { 603 struct Scsi_Host *shost = class_to_shost(cdev); 604 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 605 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 606 607 return snprintf(buf, PAGE_SIZE, "%08x", 608 pm8001_ha->non_fatal_count); 609 } 610 611 static ssize_t non_fatal_count_store(struct device *cdev, 612 struct device_attribute *attr, const char *buf, size_t count) 613 { 614 struct Scsi_Host *shost = class_to_shost(cdev); 615 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 616 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 617 int val = 0; 618 619 if (kstrtoint(buf, 16, &val) != 0) 620 return -EINVAL; 621 622 pm8001_ha->non_fatal_count = val; 623 return strlen(buf); 624 } 625 static DEVICE_ATTR_RW(non_fatal_count); 626 627 /** 628 * pm8001_ctl_gsm_log_show - gsm dump collection 629 * @cdev:pointer to embedded class device 630 * @attr: device attribute (unused) 631 * @buf: the buffer returned 632 * 633 * A sysfs 'read-only' shost attribute. 634 */ 635 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev, 636 struct device_attribute *attr, char *buf) 637 { 638 ssize_t count; 639 640 count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf); 641 return count; 642 } 643 644 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL); 645 646 #define FLASH_CMD_NONE 0x00 647 #define FLASH_CMD_UPDATE 0x01 648 #define FLASH_CMD_SET_NVMD 0x02 649 650 struct flash_command { 651 u8 command[8]; 652 int code; 653 }; 654 655 static const struct flash_command flash_command_table[] = { 656 {"set_nvmd", FLASH_CMD_SET_NVMD}, 657 {"update", FLASH_CMD_UPDATE}, 658 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ 659 }; 660 661 struct error_fw { 662 char *reason; 663 int err_code; 664 }; 665 666 static const struct error_fw flash_error_table[] = { 667 {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE}, 668 {"image header mismatch", FLASH_UPDATE_HDR_ERR}, 669 {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR}, 670 {"image CRC Error", FLASH_UPDATE_CRC_ERR}, 671 {"image length Error.", FLASH_UPDATE_LENGTH_ERR}, 672 {"Failed to program flash chip", FLASH_UPDATE_HW_ERR}, 673 {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED}, 674 {"Flash update disabled.", FLASH_UPDATE_DISABLED}, 675 {"Flash in progress", FLASH_IN_PROGRESS}, 676 {"Image file size Error", FAIL_FILE_SIZE}, 677 {"Input parameter error", FAIL_PARAMETERS}, 678 {"Out of memory", FAIL_OUT_MEMORY}, 679 {"OK", 0} /* Last entry err_code = 0. */ 680 }; 681 682 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha) 683 { 684 struct pm8001_ioctl_payload *payload; 685 DECLARE_COMPLETION_ONSTACK(completion); 686 u8 *ioctlbuffer; 687 u32 ret; 688 u32 length = 1024 * 5 + sizeof(*payload) - 1; 689 690 if (pm8001_ha->fw_image->size > 4096) { 691 pm8001_ha->fw_status = FAIL_FILE_SIZE; 692 return -EFAULT; 693 } 694 695 ioctlbuffer = kzalloc(length, GFP_KERNEL); 696 if (!ioctlbuffer) { 697 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 698 return -ENOMEM; 699 } 700 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 701 memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data, 702 pm8001_ha->fw_image->size); 703 payload->wr_length = pm8001_ha->fw_image->size; 704 payload->id = 0; 705 payload->minor_function = 0x1; 706 pm8001_ha->nvmd_completion = &completion; 707 ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload); 708 if (ret) { 709 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 710 goto out; 711 } 712 wait_for_completion(&completion); 713 out: 714 kfree(ioctlbuffer); 715 return ret; 716 } 717 718 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha) 719 { 720 struct pm8001_ioctl_payload *payload; 721 DECLARE_COMPLETION_ONSTACK(completion); 722 u8 *ioctlbuffer; 723 struct fw_control_info *fwControl; 724 __be32 partitionSizeTmp; 725 u32 partitionSize; 726 u32 loopNumber, loopcount; 727 struct pm8001_fw_image_header *image_hdr; 728 u32 sizeRead = 0; 729 u32 ret = 0; 730 u32 length = 1024 * 16 + sizeof(*payload) - 1; 731 u32 fc_len; 732 u8 *read_buf; 733 734 if (pm8001_ha->fw_image->size < 28) { 735 pm8001_ha->fw_status = FAIL_FILE_SIZE; 736 return -EFAULT; 737 } 738 ioctlbuffer = kzalloc(length, GFP_KERNEL); 739 if (!ioctlbuffer) { 740 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 741 return -ENOMEM; 742 } 743 image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data; 744 while (sizeRead < pm8001_ha->fw_image->size) { 745 partitionSizeTmp = 746 *(__be32 *)((u8 *)&image_hdr->image_length + sizeRead); 747 partitionSize = be32_to_cpu(partitionSizeTmp); 748 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN, 749 IOCTL_BUF_SIZE); 750 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) { 751 payload = (struct pm8001_ioctl_payload *)ioctlbuffer; 752 payload->wr_length = 1024*16; 753 payload->id = 0; 754 fwControl = 755 (struct fw_control_info *)&payload->func_specific; 756 fwControl->len = IOCTL_BUF_SIZE; /* IN */ 757 fwControl->size = partitionSize + HEADER_LEN;/* IN */ 758 fwControl->retcode = 0;/* OUT */ 759 fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */ 760 761 /* 762 * for the last chunk of data in case file size is 763 * not even with 4k, load only the rest 764 */ 765 766 read_buf = (u8 *)pm8001_ha->fw_image->data + sizeRead; 767 fc_len = (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; 768 769 if (loopcount - loopNumber == 1 && fc_len) { 770 fwControl->len = fc_len; 771 memcpy((u8 *)fwControl->buffer, read_buf, fc_len); 772 sizeRead += fc_len; 773 } else { 774 memcpy((u8 *)fwControl->buffer, read_buf, IOCTL_BUF_SIZE); 775 sizeRead += IOCTL_BUF_SIZE; 776 } 777 778 pm8001_ha->nvmd_completion = &completion; 779 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload); 780 if (ret) { 781 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 782 goto out; 783 } 784 wait_for_completion(&completion); 785 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) { 786 pm8001_ha->fw_status = fwControl->retcode; 787 ret = -EFAULT; 788 goto out; 789 } 790 } 791 } 792 out: 793 kfree(ioctlbuffer); 794 return ret; 795 } 796 static ssize_t pm8001_store_update_fw(struct device *cdev, 797 struct device_attribute *attr, 798 const char *buf, size_t count) 799 { 800 struct Scsi_Host *shost = class_to_shost(cdev); 801 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 802 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 803 char *cmd_ptr, *filename_ptr; 804 int res, i; 805 int flash_command = FLASH_CMD_NONE; 806 int ret; 807 808 if (!capable(CAP_SYS_ADMIN)) 809 return -EACCES; 810 811 /* this test protects us from running two flash processes at once, 812 * so we should start with this test */ 813 if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) 814 return -EINPROGRESS; 815 pm8001_ha->fw_status = FLASH_IN_PROGRESS; 816 817 cmd_ptr = kcalloc(count, 2, GFP_KERNEL); 818 if (!cmd_ptr) { 819 pm8001_ha->fw_status = FAIL_OUT_MEMORY; 820 return -ENOMEM; 821 } 822 823 filename_ptr = cmd_ptr + count; 824 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 825 if (res != 2) { 826 pm8001_ha->fw_status = FAIL_PARAMETERS; 827 ret = -EINVAL; 828 goto out; 829 } 830 831 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 832 if (!memcmp(flash_command_table[i].command, 833 cmd_ptr, strlen(cmd_ptr))) { 834 flash_command = flash_command_table[i].code; 835 break; 836 } 837 } 838 if (flash_command == FLASH_CMD_NONE) { 839 pm8001_ha->fw_status = FAIL_PARAMETERS; 840 ret = -EINVAL; 841 goto out; 842 } 843 844 ret = request_firmware(&pm8001_ha->fw_image, 845 filename_ptr, 846 pm8001_ha->dev); 847 848 if (ret) { 849 pm8001_dbg(pm8001_ha, FAIL, 850 "Failed to load firmware image file %s, error %d\n", 851 filename_ptr, ret); 852 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE; 853 goto out; 854 } 855 856 if (FLASH_CMD_UPDATE == flash_command) 857 ret = pm8001_update_flash(pm8001_ha); 858 else 859 ret = pm8001_set_nvmd(pm8001_ha); 860 861 release_firmware(pm8001_ha->fw_image); 862 out: 863 kfree(cmd_ptr); 864 865 if (ret) 866 return ret; 867 868 pm8001_ha->fw_status = FLASH_OK; 869 return count; 870 } 871 872 static ssize_t pm8001_show_update_fw(struct device *cdev, 873 struct device_attribute *attr, char *buf) 874 { 875 int i; 876 struct Scsi_Host *shost = class_to_shost(cdev); 877 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 878 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 879 880 for (i = 0; flash_error_table[i].err_code != 0; i++) { 881 if (flash_error_table[i].err_code == pm8001_ha->fw_status) 882 break; 883 } 884 if (pm8001_ha->fw_status != FLASH_IN_PROGRESS) 885 pm8001_ha->fw_status = FLASH_OK; 886 887 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 888 flash_error_table[i].err_code, 889 flash_error_table[i].reason); 890 } 891 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP, 892 pm8001_show_update_fw, pm8001_store_update_fw); 893 894 static const char *const mpiStateText[] = { 895 "MPI is not initialized", 896 "MPI is successfully initialized", 897 "MPI termination is in progress", 898 "MPI initialization failed with error in [31:16]" 899 }; 900 901 /** 902 * ctl_mpi_state_show - controller MPI state check 903 * @cdev: pointer to embedded class device 904 * @attr: device attribute (unused) 905 * @buf: the buffer returned 906 * 907 * A sysfs 'read-only' shost attribute. 908 */ 909 static ssize_t ctl_mpi_state_show(struct device *cdev, 910 struct device_attribute *attr, char *buf) 911 { 912 struct Scsi_Host *shost = class_to_shost(cdev); 913 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 914 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 915 unsigned int mpidw0; 916 917 mpidw0 = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 0); 918 return sysfs_emit(buf, "%s\n", mpiStateText[mpidw0 & 0x0003]); 919 } 920 static DEVICE_ATTR_RO(ctl_mpi_state); 921 922 /** 923 * ctl_hmi_error_show - controller MPI initialization fails 924 * @cdev: pointer to embedded class device 925 * @attr: device attribute (unused) 926 * @buf: the buffer returned 927 * 928 * A sysfs 'read-only' shost attribute. 929 */ 930 static ssize_t ctl_hmi_error_show(struct device *cdev, 931 struct device_attribute *attr, char *buf) 932 { 933 struct Scsi_Host *shost = class_to_shost(cdev); 934 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 935 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 936 unsigned int mpidw0; 937 938 mpidw0 = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 0); 939 return sysfs_emit(buf, "0x%08x\n", (mpidw0 >> 16)); 940 } 941 static DEVICE_ATTR_RO(ctl_hmi_error); 942 943 /** 944 * ctl_raae_count_show - controller raae count check 945 * @cdev: pointer to embedded class device 946 * @attr: device attribute (unused) 947 * @buf: the buffer returned 948 * 949 * A sysfs 'read-only' shost attribute. 950 */ 951 static ssize_t ctl_raae_count_show(struct device *cdev, 952 struct device_attribute *attr, char *buf) 953 { 954 struct Scsi_Host *shost = class_to_shost(cdev); 955 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 956 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 957 unsigned int raaecnt; 958 959 raaecnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 12); 960 return sysfs_emit(buf, "0x%08x\n", raaecnt); 961 } 962 static DEVICE_ATTR_RO(ctl_raae_count); 963 964 /** 965 * ctl_iop0_count_show - controller iop0 count check 966 * @cdev: pointer to embedded class device 967 * @attr: device attribute (unused) 968 * @buf: the buffer returned 969 * 970 * A sysfs 'read-only' shost attribute. 971 */ 972 static ssize_t ctl_iop0_count_show(struct device *cdev, 973 struct device_attribute *attr, char *buf) 974 { 975 struct Scsi_Host *shost = class_to_shost(cdev); 976 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 977 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 978 unsigned int iop0cnt; 979 980 iop0cnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 16); 981 return sysfs_emit(buf, "0x%08x\n", iop0cnt); 982 } 983 static DEVICE_ATTR_RO(ctl_iop0_count); 984 985 /** 986 * ctl_iop1_count_show - controller iop1 count check 987 * @cdev: pointer to embedded class device 988 * @attr: device attribute (unused) 989 * @buf: the buffer returned 990 * 991 * A sysfs 'read-only' shost attribute. 992 */ 993 static ssize_t ctl_iop1_count_show(struct device *cdev, 994 struct device_attribute *attr, char *buf) 995 { 996 struct Scsi_Host *shost = class_to_shost(cdev); 997 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 998 struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; 999 unsigned int iop1cnt; 1000 1001 iop1cnt = pm8001_mr32(pm8001_ha->general_stat_tbl_addr, 20); 1002 return sysfs_emit(buf, "0x%08x\n", iop1cnt); 1003 1004 } 1005 static DEVICE_ATTR_RO(ctl_iop1_count); 1006 1007 static struct attribute *pm8001_host_attrs[] = { 1008 &dev_attr_interface_rev.attr, 1009 &dev_attr_controller_fatal_error.attr, 1010 &dev_attr_fw_version.attr, 1011 &dev_attr_update_fw.attr, 1012 &dev_attr_aap_log.attr, 1013 &dev_attr_iop_log.attr, 1014 &dev_attr_fatal_log.attr, 1015 &dev_attr_non_fatal_log.attr, 1016 &dev_attr_non_fatal_count.attr, 1017 &dev_attr_gsm_log.attr, 1018 &dev_attr_max_out_io.attr, 1019 &dev_attr_max_devices.attr, 1020 &dev_attr_max_sg_list.attr, 1021 &dev_attr_sas_spec_support.attr, 1022 &dev_attr_logging_level.attr, 1023 &dev_attr_event_log_size.attr, 1024 &dev_attr_host_sas_address.attr, 1025 &dev_attr_bios_version.attr, 1026 &dev_attr_ib_log.attr, 1027 &dev_attr_ob_log.attr, 1028 &dev_attr_ila_version.attr, 1029 &dev_attr_inc_fw_ver.attr, 1030 &dev_attr_ctl_mpi_state.attr, 1031 &dev_attr_ctl_hmi_error.attr, 1032 &dev_attr_ctl_raae_count.attr, 1033 &dev_attr_ctl_iop0_count.attr, 1034 &dev_attr_ctl_iop1_count.attr, 1035 NULL, 1036 }; 1037 1038 static const struct attribute_group pm8001_host_attr_group = { 1039 .attrs = pm8001_host_attrs 1040 }; 1041 1042 const struct attribute_group *pm8001_host_groups[] = { 1043 &pm8001_host_attr_group, 1044 NULL 1045 }; 1046