1 What: /sys/bus/*/drivers/ufshcd/*/auto_hibern8 2 Date: March 2018 3 Contact: linux-scsi@vger.kernel.org 4 Description: 5 This file contains the auto-hibernate idle timer setting of a 6 UFS host controller. A value of '0' means auto-hibernate is not 7 enabled. Otherwise the value is the number of microseconds of 8 idle time before the UFS host controller will autonomously put 9 the link into hibernate state. That will save power at the 10 expense of increased latency. Note that the hardware supports 11 10-bit values with a power-of-ten multiplier which allows a 12 maximum value of 102300000. Refer to the UFS Host Controller 13 Interface specification for more details. 14 15 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_type 16 What: /sys/bus/platform/devices/*.ufs/device_descriptor/device_type 17 Date: February 2018 18 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 19 Description: This file shows the device type. This is one of the UFS 20 device descriptor parameters. The full information about 21 the descriptor could be found at UFS specifications 2.1. 22 23 The file is read only. 24 25 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_class 26 What: /sys/bus/platform/devices/*.ufs/device_descriptor/device_class 27 Date: February 2018 28 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 29 Description: This file shows the device class. This is one of the UFS 30 device descriptor parameters. The full information about 31 the descriptor could be found at UFS specifications 2.1. 32 33 The file is read only. 34 35 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_sub_class 36 What: /sys/bus/platform/devices/*.ufs/device_descriptor/device_sub_class 37 Date: February 2018 38 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 39 Description: This file shows the UFS storage subclass. This is one of 40 the UFS device descriptor parameters. The full information 41 about the descriptor could be found at UFS specifications 2.1. 42 43 The file is read only. 44 45 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/protocol 46 What: /sys/bus/platform/devices/*.ufs/device_descriptor/protocol 47 Date: February 2018 48 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 49 Description: This file shows the protocol supported by an UFS device. 50 This is one of the UFS device descriptor parameters. 51 The full information about the descriptor could be found 52 at UFS specifications 2.1. 53 54 The file is read only. 55 56 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/number_of_luns 57 What: /sys/bus/platform/devices/*.ufs/device_descriptor/number_of_luns 58 Date: February 2018 59 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 60 Description: This file shows number of logical units. This is one of 61 the UFS device descriptor parameters. The full information 62 about the descriptor could be found at UFS specifications 2.1. 63 64 The file is read only. 65 66 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/number_of_wluns 67 What: /sys/bus/platform/devices/*.ufs/device_descriptor/number_of_wluns 68 Date: February 2018 69 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 70 Description: This file shows number of well known logical units. 71 This is one of the UFS device descriptor parameters. 72 The full information about the descriptor could be found 73 at UFS specifications 2.1. 74 75 The file is read only. 76 77 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/boot_enable 78 What: /sys/bus/platform/devices/*.ufs/device_descriptor/boot_enable 79 Date: February 2018 80 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 81 Description: This file shows value that indicates whether the device is 82 enabled for boot. This is one of the UFS device descriptor 83 parameters. The full information about the descriptor could 84 be found at UFS specifications 2.1. 85 86 The file is read only. 87 88 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/descriptor_access_enable 89 What: /sys/bus/platform/devices/*.ufs/device_descriptor/descriptor_access_enable 90 Date: February 2018 91 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 92 Description: This file shows value that indicates whether the device 93 descriptor could be read after partial initialization phase 94 of the boot sequence. This is one of the UFS device descriptor 95 parameters. The full information about the descriptor could 96 be found at UFS specifications 2.1. 97 98 The file is read only. 99 100 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/initial_power_mode 101 What: /sys/bus/platform/devices/*.ufs/device_descriptor/initial_power_mode 102 Date: February 2018 103 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 104 Description: This file shows value that defines the power mode after 105 device initialization or hardware reset. This is one of 106 the UFS device descriptor parameters. The full information 107 about the descriptor could be found at UFS specifications 2.1. 108 109 The file is read only. 110 111 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/high_priority_lun 112 What: /sys/bus/platform/devices/*.ufs/device_descriptor/high_priority_lun 113 Date: February 2018 114 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 115 Description: This file shows the high priority lun. This is one of 116 the UFS device descriptor parameters. The full information 117 about the descriptor could be found at UFS specifications 2.1. 118 119 The file is read only. 120 121 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/secure_removal_type 122 What: /sys/bus/platform/devices/*.ufs/device_descriptor/secure_removal_type 123 Date: February 2018 124 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 125 Description: This file shows the secure removal type. This is one of 126 the UFS device descriptor parameters. The full information 127 about the descriptor could be found at UFS specifications 2.1. 128 129 The file is read only. 130 131 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/support_security_lun 132 What: /sys/bus/platform/devices/*.ufs/device_descriptor/support_security_lun 133 Date: February 2018 134 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 135 Description: This file shows whether the security lun is supported. 136 This is one of the UFS device descriptor parameters. 137 The full information about the descriptor could be found 138 at UFS specifications 2.1. 139 140 The file is read only. 141 142 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/bkops_termination_latency 143 What: /sys/bus/platform/devices/*.ufs/device_descriptor/bkops_termination_latency 144 Date: February 2018 145 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 146 Description: This file shows the background operations termination 147 latency. This is one of the UFS device descriptor parameters. 148 The full information about the descriptor could be found 149 at UFS specifications 2.1. 150 151 The file is read only. 152 153 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/initial_active_icc_level 154 What: /sys/bus/platform/devices/*.ufs/device_descriptor/initial_active_icc_level 155 Date: February 2018 156 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 157 Description: This file shows the initial active ICC level. This is one 158 of the UFS device descriptor parameters. The full information 159 about the descriptor could be found at UFS specifications 2.1. 160 161 The file is read only. 162 163 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/specification_version 164 What: /sys/bus/platform/devices/*.ufs/device_descriptor/specification_version 165 Date: February 2018 166 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 167 Description: This file shows the specification version. This is one 168 of the UFS device descriptor parameters. The full information 169 about the descriptor could be found at UFS specifications 2.1. 170 171 The file is read only. 172 173 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/manufacturing_date 174 What: /sys/bus/platform/devices/*.ufs/device_descriptor/manufacturing_date 175 Date: February 2018 176 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 177 Description: This file shows the manufacturing date in BCD format. 178 This is one of the UFS device descriptor parameters. 179 The full information about the descriptor could be found 180 at UFS specifications 2.1. 181 182 The file is read only. 183 184 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/manufacturer_id 185 What: /sys/bus/platform/devices/*.ufs/device_descriptor/manufacturer_id 186 Date: February 2018 187 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 188 Description: This file shows the manufacturer ID. This is one of the 189 UFS device descriptor parameters. The full information about 190 the descriptor could be found at UFS specifications 2.1. 191 192 The file is read only. 193 194 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/rtt_capability 195 What: /sys/bus/platform/devices/*.ufs/device_descriptor/rtt_capability 196 Date: February 2018 197 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 198 Description: This file shows the maximum number of outstanding RTTs 199 supported by the device. This is one of the UFS device 200 descriptor parameters. The full information about 201 the descriptor could be found at UFS specifications 2.1. 202 203 The file is read only. 204 205 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/rtc_update 206 What: /sys/bus/platform/devices/*.ufs/device_descriptor/rtc_update 207 Date: February 2018 208 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 209 Description: This file shows the frequency and method of the realtime 210 clock update. This is one of the UFS device descriptor 211 parameters. The full information about the descriptor 212 could be found at UFS specifications 2.1. 213 214 The file is read only. 215 216 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/ufs_features 217 What: /sys/bus/platform/devices/*.ufs/device_descriptor/ufs_features 218 Date: February 2018 219 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 220 Description: This file shows which features are supported by the device. 221 This is one of the UFS device descriptor parameters. 222 The full information about the descriptor could be 223 found at UFS specifications 2.1. 224 225 The file is read only. 226 227 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/ffu_timeout 228 What: /sys/bus/platform/devices/*.ufs/device_descriptor/ffu_timeout 229 Date: February 2018 230 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 231 Description: This file shows the FFU timeout. This is one of the 232 UFS device descriptor parameters. The full information 233 about the descriptor could be found at UFS specifications 2.1. 234 235 The file is read only. 236 237 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/queue_depth 238 What: /sys/bus/platform/devices/*.ufs/device_descriptor/queue_depth 239 Date: February 2018 240 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 241 Description: This file shows the device queue depth. This is one of the 242 UFS device descriptor parameters. The full information 243 about the descriptor could be found at UFS specifications 2.1. 244 245 The file is read only. 246 247 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_version 248 What: /sys/bus/platform/devices/*.ufs/device_descriptor/device_version 249 Date: February 2018 250 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 251 Description: This file shows the device version. This is one of the 252 UFS device descriptor parameters. The full information 253 about the descriptor could be found at UFS specifications 2.1. 254 255 The file is read only. 256 257 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/number_of_secure_wpa 258 What: /sys/bus/platform/devices/*.ufs/device_descriptor/number_of_secure_wpa 259 Date: February 2018 260 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 261 Description: This file shows number of secure write protect areas 262 supported by the device. This is one of the UFS device 263 descriptor parameters. The full information about 264 the descriptor could be found at UFS specifications 2.1. 265 266 The file is read only. 267 268 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/psa_max_data_size 269 What: /sys/bus/platform/devices/*.ufs/device_descriptor/psa_max_data_size 270 Date: February 2018 271 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 272 Description: This file shows the maximum amount of data that may be 273 written during the pre-soldering phase of the PSA flow. 274 This is one of the UFS device descriptor parameters. 275 The full information about the descriptor could be found 276 at UFS specifications 2.1. 277 278 The file is read only. 279 280 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/psa_state_timeout 281 What: /sys/bus/platform/devices/*.ufs/device_descriptor/psa_state_timeout 282 Date: February 2018 283 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 284 Description: This file shows the command maximum timeout for a change 285 in PSA state. This is one of the UFS device descriptor 286 parameters. The full information about the descriptor could 287 be found at UFS specifications 2.1. 288 289 The file is read only. 290 291 292 What: /sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/unipro_version 293 What: /sys/bus/platform/devices/*.ufs/interconnect_descriptor/unipro_version 294 Date: February 2018 295 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 296 Description: This file shows the MIPI UniPro version number in BCD format. 297 This is one of the UFS interconnect descriptor parameters. 298 The full information about the descriptor could be found at 299 UFS specifications 2.1. 300 301 The file is read only. 302 303 What: /sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/mphy_version 304 What: /sys/bus/platform/devices/*.ufs/interconnect_descriptor/mphy_version 305 Date: February 2018 306 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 307 Description: This file shows the MIPI M-PHY version number in BCD format. 308 This is one of the UFS interconnect descriptor parameters. 309 The full information about the descriptor could be found at 310 UFS specifications 2.1. 311 312 The file is read only. 313 314 315 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/raw_device_capacity 316 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/raw_device_capacity 317 Date: February 2018 318 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 319 Description: This file shows the total memory quantity available to 320 the user to configure the device logical units. This is one 321 of the UFS geometry descriptor parameters. The full 322 information about the descriptor could be found at 323 UFS specifications 2.1. 324 325 The file is read only. 326 327 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_number_of_luns 328 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/max_number_of_luns 329 Date: February 2018 330 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 331 Description: This file shows the maximum number of logical units 332 supported by the UFS device. This is one of the UFS 333 geometry descriptor parameters. The full information about 334 the descriptor could be found at UFS specifications 2.1. 335 336 The file is read only. 337 338 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/segment_size 339 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/segment_size 340 Date: February 2018 341 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 342 Description: This file shows the segment size. This is one of the UFS 343 geometry descriptor parameters. The full information about 344 the descriptor could be found at UFS specifications 2.1. 345 346 The file is read only. 347 348 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/allocation_unit_size 349 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/allocation_unit_size 350 Date: February 2018 351 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 352 Description: This file shows the allocation unit size. This is one of 353 the UFS geometry descriptor parameters. The full information 354 about the descriptor could be found at UFS specifications 2.1. 355 356 The file is read only. 357 358 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/min_addressable_block_size 359 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/min_addressable_block_size 360 Date: February 2018 361 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 362 Description: This file shows the minimum addressable block size. This 363 is one of the UFS geometry descriptor parameters. The full 364 information about the descriptor could be found at UFS 365 specifications 2.1. 366 367 The file is read only. 368 369 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/optimal_read_block_size 370 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/optimal_read_block_size 371 Date: February 2018 372 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 373 Description: This file shows the optimal read block size. This is one 374 of the UFS geometry descriptor parameters. The full 375 information about the descriptor could be found at UFS 376 specifications 2.1. 377 378 The file is read only. 379 380 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/optimal_write_block_size 381 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/optimal_write_block_size 382 Date: February 2018 383 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 384 Description: This file shows the optimal write block size. This is one 385 of the UFS geometry descriptor parameters. The full 386 information about the descriptor could be found at UFS 387 specifications 2.1. 388 389 The file is read only. 390 391 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_in_buffer_size 392 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/max_in_buffer_size 393 Date: February 2018 394 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 395 Description: This file shows the maximum data-in buffer size. This 396 is one of the UFS geometry descriptor parameters. The full 397 information about the descriptor could be found at UFS 398 specifications 2.1. 399 400 The file is read only. 401 402 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_out_buffer_size 403 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/max_out_buffer_size 404 Date: February 2018 405 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 406 Description: This file shows the maximum data-out buffer size. This 407 is one of the UFS geometry descriptor parameters. The full 408 information about the descriptor could be found at UFS 409 specifications 2.1. 410 411 The file is read only. 412 413 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/rpmb_rw_size 414 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/rpmb_rw_size 415 Date: February 2018 416 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 417 Description: This file shows the maximum number of RPMB frames allowed 418 in Security Protocol In/Out. This is one of the UFS geometry 419 descriptor parameters. The full information about the 420 descriptor could be found at UFS specifications 2.1. 421 422 The file is read only. 423 424 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/dyn_capacity_resource_policy 425 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/dyn_capacity_resource_policy 426 Date: February 2018 427 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 428 Description: This file shows the dynamic capacity resource policy. This 429 is one of the UFS geometry descriptor parameters. The full 430 information about the descriptor could be found at 431 UFS specifications 2.1. 432 433 The file is read only. 434 435 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/data_ordering 436 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/data_ordering 437 Date: February 2018 438 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 439 Description: This file shows support for out-of-order data transfer. 440 This is one of the UFS geometry descriptor parameters. 441 The full information about the descriptor could be found at 442 UFS specifications 2.1. 443 444 The file is read only. 445 446 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_number_of_contexts 447 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/max_number_of_contexts 448 Date: February 2018 449 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 450 Description: This file shows maximum available number of contexts which 451 are supported by the device. This is one of the UFS geometry 452 descriptor parameters. The full information about the 453 descriptor could be found at UFS specifications 2.1. 454 455 The file is read only. 456 457 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/sys_data_tag_unit_size 458 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/sys_data_tag_unit_size 459 Date: February 2018 460 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 461 Description: This file shows system data tag unit size. This is one of 462 the UFS geometry descriptor parameters. The full information 463 about the descriptor could be found at UFS specifications 2.1. 464 465 The file is read only. 466 467 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/sys_data_tag_resource_size 468 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/sys_data_tag_resource_size 469 Date: February 2018 470 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 471 Description: This file shows maximum storage area size allocated by 472 the device to handle system data by the tagging mechanism. 473 This is one of the UFS geometry descriptor parameters. 474 The full information about the descriptor could be found at 475 UFS specifications 2.1. 476 477 The file is read only. 478 479 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/secure_removal_types 480 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/secure_removal_types 481 Date: February 2018 482 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 483 Description: This file shows supported secure removal types. This is 484 one of the UFS geometry descriptor parameters. The full 485 information about the descriptor could be found at 486 UFS specifications 2.1. 487 488 The file is read only. 489 490 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/memory_types 491 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/memory_types 492 Date: February 2018 493 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 494 Description: This file shows supported memory types. This is one of 495 the UFS geometry descriptor parameters. The full 496 information about the descriptor could be found at 497 UFS specifications 2.1. 498 499 The file is read only. 500 501 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/*_memory_max_alloc_units 502 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/*_memory_max_alloc_units 503 Date: February 2018 504 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 505 Description: This file shows the maximum number of allocation units for 506 different memory types (system code, non persistent, 507 enhanced type 1-4). This is one of the UFS geometry 508 descriptor parameters. The full information about the 509 descriptor could be found at UFS specifications 2.1. 510 511 The file is read only. 512 513 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/*_memory_capacity_adjustment_factor 514 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/*_memory_capacity_adjustment_factor 515 Date: February 2018 516 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 517 Description: This file shows the memory capacity adjustment factor for 518 different memory types (system code, non persistent, 519 enhanced type 1-4). This is one of the UFS geometry 520 descriptor parameters. The full information about the 521 descriptor could be found at UFS specifications 2.1. 522 523 The file is read only. 524 525 526 What: /sys/bus/platform/drivers/ufshcd/*/health_descriptor/eol_info 527 What: /sys/bus/platform/devices/*.ufs/health_descriptor/eol_info 528 Date: February 2018 529 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 530 Description: This file shows preend of life information. This is one 531 of the UFS health descriptor parameters. The full 532 information about the descriptor could be found at 533 UFS specifications 2.1. 534 535 The file is read only. 536 537 What: /sys/bus/platform/drivers/ufshcd/*/health_descriptor/life_time_estimation_a 538 What: /sys/bus/platform/devices/*.ufs/health_descriptor/life_time_estimation_a 539 Date: February 2018 540 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 541 Description: This file shows indication of the device life time 542 (method a). This is one of the UFS health descriptor 543 parameters. The full information about the descriptor 544 could be found at UFS specifications 2.1. 545 546 The file is read only. 547 548 What: /sys/bus/platform/drivers/ufshcd/*/health_descriptor/life_time_estimation_b 549 What: /sys/bus/platform/devices/*.ufs/health_descriptor/life_time_estimation_b 550 Date: February 2018 551 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 552 Description: This file shows indication of the device life time 553 (method b). This is one of the UFS health descriptor 554 parameters. The full information about the descriptor 555 could be found at UFS specifications 2.1. 556 557 The file is read only. 558 559 560 What: /sys/bus/platform/drivers/ufshcd/*/power_descriptor/active_icc_levels_vcc* 561 What: /sys/bus/platform/devices/*.ufs/power_descriptor/active_icc_levels_vcc* 562 Date: February 2018 563 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 564 Description: This file shows maximum VCC, VCCQ and VCCQ2 value for 565 active ICC levels from 0 to 15. This is one of the UFS 566 power descriptor parameters. The full information about 567 the descriptor could be found at UFS specifications 2.1. 568 569 The file is read only. 570 571 572 What: /sys/bus/platform/drivers/ufshcd/*/string_descriptors/manufacturer_name 573 What: /sys/bus/platform/devices/*.ufs/string_descriptors/manufacturer_name 574 Date: February 2018 575 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 576 Description: This file contains a device manufacturer name string. 577 The full information about the descriptor could be found at 578 UFS specifications 2.1. 579 580 The file is read only. 581 582 What: /sys/bus/platform/drivers/ufshcd/*/string_descriptors/product_name 583 What: /sys/bus/platform/devices/*.ufs/string_descriptors/product_name 584 Date: February 2018 585 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 586 Description: This file contains a product name string. The full information 587 about the descriptor could be found at UFS specifications 2.1. 588 589 The file is read only. 590 591 What: /sys/bus/platform/drivers/ufshcd/*/string_descriptors/oem_id 592 What: /sys/bus/platform/devices/*.ufs/string_descriptors/oem_id 593 Date: February 2018 594 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 595 Description: This file contains a OEM ID string. The full information 596 about the descriptor could be found at UFS specifications 2.1. 597 598 The file is read only. 599 600 What: /sys/bus/platform/drivers/ufshcd/*/string_descriptors/serial_number 601 What: /sys/bus/platform/devices/*.ufs/string_descriptors/serial_number 602 Date: February 2018 603 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 604 Description: This file contains a device serial number string. The full 605 information about the descriptor could be found at 606 UFS specifications 2.1. 607 608 The file is read only. 609 610 What: /sys/bus/platform/drivers/ufshcd/*/string_descriptors/product_revision 611 What: /sys/bus/platform/devices/*.ufs/string_descriptors/product_revision 612 Date: February 2018 613 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 614 Description: This file contains a product revision string. The full 615 information about the descriptor could be found at 616 UFS specifications 2.1. 617 618 The file is read only. 619 620 621 What: /sys/class/scsi_device/*/device/unit_descriptor/boot_lun_id 622 Date: February 2018 623 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 624 Description: This file shows boot LUN information. This is one of 625 the UFS unit descriptor parameters. The full information 626 about the descriptor could be found at UFS specifications 2.1. 627 628 The file is read only. 629 630 What: /sys/class/scsi_device/*/device/unit_descriptor/lun_write_protect 631 Date: February 2018 632 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 633 Description: This file shows LUN write protection status. This is one of 634 the UFS unit descriptor parameters. The full information 635 about the descriptor could be found at UFS specifications 2.1. 636 637 The file is read only. 638 639 What: /sys/class/scsi_device/*/device/unit_descriptor/lun_queue_depth 640 Date: February 2018 641 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 642 Description: This file shows LUN queue depth. This is one of the UFS 643 unit descriptor parameters. The full information about 644 the descriptor could be found at UFS specifications 2.1. 645 646 The file is read only. 647 648 What: /sys/class/scsi_device/*/device/unit_descriptor/psa_sensitive 649 Date: February 2018 650 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 651 Description: This file shows PSA sensitivity. This is one of the UFS 652 unit descriptor parameters. The full information about 653 the descriptor could be found at UFS specifications 2.1. 654 655 The file is read only. 656 657 What: /sys/class/scsi_device/*/device/unit_descriptor/lun_memory_type 658 Date: February 2018 659 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 660 Description: This file shows LUN memory type. This is one of the UFS 661 unit descriptor parameters. The full information about 662 the descriptor could be found at UFS specifications 2.1. 663 664 The file is read only. 665 666 What: /sys/class/scsi_device/*/device/unit_descriptor/data_reliability 667 Date: February 2018 668 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 669 Description: This file defines the device behavior when a power failure 670 occurs during a write operation. This is one of the UFS 671 unit descriptor parameters. The full information about 672 the descriptor could be found at UFS specifications 2.1. 673 674 The file is read only. 675 676 What: /sys/class/scsi_device/*/device/unit_descriptor/logical_block_size 677 Date: February 2018 678 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 679 Description: This file shows the size of addressable logical blocks 680 (calculated as an exponent with base 2). This is one of 681 the UFS unit descriptor parameters. The full information about 682 the descriptor could be found at UFS specifications 2.1. 683 684 The file is read only. 685 686 What: /sys/class/scsi_device/*/device/unit_descriptor/logical_block_count 687 Date: February 2018 688 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 689 Description: This file shows total number of addressable logical blocks. 690 This is one of the UFS unit descriptor parameters. The full 691 information about the descriptor could be found at 692 UFS specifications 2.1. 693 694 The file is read only. 695 696 What: /sys/class/scsi_device/*/device/unit_descriptor/erase_block_size 697 Date: February 2018 698 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 699 Description: This file shows the erase block size. This is one of 700 the UFS unit descriptor parameters. The full information 701 about the descriptor could be found at UFS specifications 2.1. 702 703 The file is read only. 704 705 What: /sys/class/scsi_device/*/device/unit_descriptor/provisioning_type 706 Date: February 2018 707 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 708 Description: This file shows the thin provisioning type. This is one of 709 the UFS unit descriptor parameters. The full information 710 about the descriptor could be found at UFS specifications 2.1. 711 712 The file is read only. 713 714 What: /sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resourse_count 715 Date: February 2018 716 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 717 Description: This file shows the total physical memory resources. This is 718 one of the UFS unit descriptor parameters. The full information 719 about the descriptor could be found at UFS specifications 2.1. 720 721 The file is read only. 722 723 What: /sys/class/scsi_device/*/device/unit_descriptor/context_capabilities 724 Date: February 2018 725 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 726 Description: This file shows the context capabilities. This is one of 727 the UFS unit descriptor parameters. The full information 728 about the descriptor could be found at UFS specifications 2.1. 729 730 The file is read only. 731 732 What: /sys/class/scsi_device/*/device/unit_descriptor/large_unit_granularity 733 Date: February 2018 734 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 735 Description: This file shows the granularity of the LUN. This is one of 736 the UFS unit descriptor parameters. The full information 737 about the descriptor could be found at UFS specifications 2.1. 738 739 The file is read only. 740 741 742 What: /sys/bus/platform/drivers/ufshcd/*/flags/device_init 743 What: /sys/bus/platform/devices/*.ufs/flags/device_init 744 Date: February 2018 745 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 746 Description: This file shows the device init status. The full information 747 about the flag could be found at UFS specifications 2.1. 748 749 The file is read only. 750 751 What: /sys/bus/platform/drivers/ufshcd/*/flags/permanent_wpe 752 What: /sys/bus/platform/devices/*.ufs/flags/permanent_wpe 753 Date: February 2018 754 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 755 Description: This file shows whether permanent write protection is enabled. 756 The full information about the flag could be found at 757 UFS specifications 2.1. 758 759 The file is read only. 760 761 What: /sys/bus/platform/drivers/ufshcd/*/flags/power_on_wpe 762 What: /sys/bus/platform/devices/*.ufs/flags/power_on_wpe 763 Date: February 2018 764 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 765 Description: This file shows whether write protection is enabled on all 766 logical units configured as power on write protected. The 767 full information about the flag could be found at 768 UFS specifications 2.1. 769 770 The file is read only. 771 772 What: /sys/bus/platform/drivers/ufshcd/*/flags/bkops_enable 773 What: /sys/bus/platform/devices/*.ufs/flags/bkops_enable 774 Date: February 2018 775 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 776 Description: This file shows whether the device background operations are 777 enabled. The full information about the flag could be 778 found at UFS specifications 2.1. 779 780 The file is read only. 781 782 What: /sys/bus/platform/drivers/ufshcd/*/flags/life_span_mode_enable 783 What: /sys/bus/platform/devices/*.ufs/flags/life_span_mode_enable 784 Date: February 2018 785 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 786 Description: This file shows whether the device life span mode is enabled. 787 The full information about the flag could be found at 788 UFS specifications 2.1. 789 790 The file is read only. 791 792 What: /sys/bus/platform/drivers/ufshcd/*/flags/phy_resource_removal 793 What: /sys/bus/platform/devices/*.ufs/flags/phy_resource_removal 794 Date: February 2018 795 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 796 Description: This file shows whether physical resource removal is enable. 797 The full information about the flag could be found at 798 UFS specifications 2.1. 799 800 The file is read only. 801 802 What: /sys/bus/platform/drivers/ufshcd/*/flags/busy_rtc 803 What: /sys/bus/platform/devices/*.ufs/flags/busy_rtc 804 Date: February 2018 805 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 806 Description: This file shows whether the device is executing internal 807 operation related to real time clock. The full information 808 about the flag could be found at UFS specifications 2.1. 809 810 The file is read only. 811 812 What: /sys/bus/platform/drivers/ufshcd/*/flags/disable_fw_update 813 What: /sys/bus/platform/devices/*.ufs/flags/disable_fw_update 814 Date: February 2018 815 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 816 Description: This file shows whether the device FW update is permanently 817 disabled. The full information about the flag could be found 818 at UFS specifications 2.1. 819 820 The file is read only. 821 822 823 What: /sys/bus/platform/drivers/ufshcd/*/attributes/boot_lun_enabled 824 What: /sys/bus/platform/devices/*.ufs/attributes/boot_lun_enabled 825 Date: February 2018 826 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 827 Description: This file provides the boot lun enabled UFS device attribute. 828 The full information about the attribute could be found at 829 UFS specifications 2.1. 830 831 The file is read only. 832 833 What: /sys/bus/platform/drivers/ufshcd/*/attributes/current_power_mode 834 What: /sys/bus/platform/devices/*.ufs/attributes/current_power_mode 835 Date: February 2018 836 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 837 Description: This file provides the current power mode UFS device attribute. 838 The full information about the attribute could be found at 839 UFS specifications 2.1. 840 841 The file is read only. 842 843 What: /sys/bus/platform/drivers/ufshcd/*/attributes/active_icc_level 844 What: /sys/bus/platform/devices/*.ufs/attributes/active_icc_level 845 Date: February 2018 846 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 847 Description: This file provides the active icc level UFS device attribute. 848 The full information about the attribute could be found at 849 UFS specifications 2.1. 850 851 The file is read only. 852 853 What: /sys/bus/platform/drivers/ufshcd/*/attributes/ooo_data_enabled 854 What: /sys/bus/platform/devices/*.ufs/attributes/ooo_data_enabled 855 Date: February 2018 856 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 857 Description: This file provides the out of order data transfer enabled UFS 858 device attribute. The full information about the attribute 859 could be found at UFS specifications 2.1. 860 861 The file is read only. 862 863 What: /sys/bus/platform/drivers/ufshcd/*/attributes/bkops_status 864 What: /sys/bus/platform/devices/*.ufs/attributes/bkops_status 865 Date: February 2018 866 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 867 Description: This file provides the background operations status UFS device 868 attribute. The full information about the attribute could 869 be found at UFS specifications 2.1. 870 871 The file is read only. 872 873 What: /sys/bus/platform/drivers/ufshcd/*/attributes/purge_status 874 What: /sys/bus/platform/devices/*.ufs/attributes/purge_status 875 Date: February 2018 876 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 877 Description: This file provides the purge operation status UFS device 878 attribute. The full information about the attribute could 879 be found at UFS specifications 2.1. 880 881 The file is read only. 882 883 What: /sys/bus/platform/drivers/ufshcd/*/attributes/max_data_in_size 884 What: /sys/bus/platform/devices/*.ufs/attributes/max_data_in_size 885 Date: February 2018 886 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 887 Description: This file shows the maximum data size in a DATA IN 888 UPIU. The full information about the attribute could 889 be found at UFS specifications 2.1. 890 891 The file is read only. 892 893 What: /sys/bus/platform/drivers/ufshcd/*/attributes/max_data_out_size 894 What: /sys/bus/platform/devices/*.ufs/attributes/max_data_out_size 895 Date: February 2018 896 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 897 Description: This file shows the maximum number of bytes that can be 898 requested with a READY TO TRANSFER UPIU. The full information 899 about the attribute could be found at UFS specifications 2.1. 900 901 The file is read only. 902 903 What: /sys/bus/platform/drivers/ufshcd/*/attributes/reference_clock_frequency 904 What: /sys/bus/platform/devices/*.ufs/attributes/reference_clock_frequency 905 Date: February 2018 906 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 907 Description: This file provides the reference clock frequency UFS device 908 attribute. The full information about the attribute could 909 be found at UFS specifications 2.1. 910 911 The file is read only. 912 913 What: /sys/bus/platform/drivers/ufshcd/*/attributes/configuration_descriptor_lock 914 What: /sys/bus/platform/devices/*.ufs/attributes/configuration_descriptor_lock 915 Date: February 2018 916 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 917 Description: This file shows whether the configuration descriptor is locked. 918 The full information about the attribute could be found at 919 UFS specifications 2.1. The file is read only. 920 921 What: /sys/bus/platform/drivers/ufshcd/*/attributes/max_number_of_rtt 922 What: /sys/bus/platform/devices/*.ufs/attributes/max_number_of_rtt 923 Date: May 2024 924 Contact: Avri Altman <avri.altman@wdc.com> 925 Description: This file provides the maximum current number of 926 outstanding RTTs in device that is allowed. bMaxNumOfRTT is a 927 read-write persistent attribute and is equal to two after device 928 manufacturing. It shall not be set to a value greater than 929 bDeviceRTTCap value, and it may be set only when the hw queues are 930 empty. 931 932 The file is read write. 933 934 What: /sys/bus/platform/drivers/ufshcd/*/attributes/exception_event_control 935 What: /sys/bus/platform/devices/*.ufs/attributes/exception_event_control 936 Date: February 2018 937 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 938 Description: This file provides the exception event control UFS device 939 attribute. The full information about the attribute could 940 be found at UFS specifications 2.1. 941 942 The file is read only. 943 944 What: /sys/bus/platform/drivers/ufshcd/*/attributes/exception_event_status 945 What: /sys/bus/platform/devices/*.ufs/attributes/exception_event_status 946 Date: February 2018 947 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 948 Description: This file provides the exception event status UFS device 949 attribute. The full information about the attribute could 950 be found at UFS specifications 2.1. 951 952 The file is read only. 953 954 What: /sys/bus/platform/drivers/ufshcd/*/attributes/ffu_status 955 What: /sys/bus/platform/devices/*.ufs/attributes/ffu_status 956 Date: February 2018 957 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 958 Description: This file provides the ffu status UFS device attribute. 959 The full information about the attribute could be found at 960 UFS specifications 2.1. 961 962 The file is read only. 963 964 What: /sys/bus/platform/drivers/ufshcd/*/attributes/psa_state 965 What: /sys/bus/platform/devices/*.ufs/attributes/psa_state 966 Date: February 2018 967 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 968 Description: This file show the PSA feature status. The full information 969 about the attribute could be found at UFS specifications 2.1. 970 971 The file is read only. 972 973 What: /sys/bus/platform/drivers/ufshcd/*/attributes/psa_data_size 974 What: /sys/bus/platform/devices/*.ufs/attributes/psa_data_size 975 Date: February 2018 976 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 977 Description: This file shows the amount of data that the host plans to 978 load to all logical units in pre-soldering state. 979 The full information about the attribute could be found at 980 UFS specifications 2.1. 981 982 The file is read only. 983 984 985 What: /sys/class/scsi_device/*/device/dyn_cap_needed 986 Date: February 2018 987 Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> 988 Description: This file shows the amount of physical memory needed 989 to be removed from the physical memory resources pool of 990 the particular logical unit. The full information about 991 the attribute could be found at UFS specifications 2.1. 992 993 The file is read only. 994 995 996 What: /sys/bus/platform/drivers/ufshcd/*/rpm_lvl 997 What: /sys/bus/platform/devices/*.ufs/rpm_lvl 998 Date: September 2014 999 Contact: Can Guo <quic_cang@quicinc.com> 1000 Description: This entry could be used to set or show the UFS device 1001 runtime power management level. The current driver 1002 implementation supports 7 levels with next target states: 1003 1004 == ==================================================== 1005 0 UFS device will stay active, UIC link will 1006 stay active 1007 1 UFS device will stay active, UIC link will 1008 hibernate 1009 2 UFS device will be moved to sleep, UIC link will 1010 stay active 1011 3 UFS device will be moved to sleep, UIC link will 1012 hibernate 1013 4 UFS device will be powered off, UIC link will 1014 hibernate 1015 5 UFS device will be powered off, UIC link will 1016 be powered off 1017 6 UFS device will be moved to deep sleep, UIC link 1018 will be powered off. Note, deep sleep might not be 1019 supported in which case this value will not be 1020 accepted 1021 == ==================================================== 1022 1023 What: /sys/bus/platform/drivers/ufshcd/*/rpm_target_dev_state 1024 What: /sys/bus/platform/devices/*.ufs/rpm_target_dev_state 1025 Date: February 2018 1026 Contact: Can Guo <quic_cang@quicinc.com> 1027 Description: This entry shows the target power mode of an UFS device 1028 for the chosen runtime power management level. 1029 1030 The file is read only. 1031 1032 What: /sys/bus/platform/drivers/ufshcd/*/rpm_target_link_state 1033 What: /sys/bus/platform/devices/*.ufs/rpm_target_link_state 1034 Date: February 2018 1035 Contact: Can Guo <quic_cang@quicinc.com> 1036 Description: This entry shows the target state of an UFS UIC link 1037 for the chosen runtime power management level. 1038 1039 The file is read only. 1040 1041 What: /sys/bus/platform/drivers/ufshcd/*/spm_lvl 1042 What: /sys/bus/platform/devices/*.ufs/spm_lvl 1043 Date: September 2014 1044 Contact: Can Guo <quic_cang@quicinc.com> 1045 Description: This entry could be used to set or show the UFS device 1046 system power management level. The current driver 1047 implementation supports 7 levels with next target states: 1048 1049 == ==================================================== 1050 0 UFS device will stay active, UIC link will 1051 stay active 1052 1 UFS device will stay active, UIC link will 1053 hibernate 1054 2 UFS device will be moved to sleep, UIC link will 1055 stay active 1056 3 UFS device will be moved to sleep, UIC link will 1057 hibernate 1058 4 UFS device will be powered off, UIC link will 1059 hibernate 1060 5 UFS device will be powered off, UIC link will 1061 be powered off 1062 6 UFS device will be moved to deep sleep, UIC link 1063 will be powered off. Note, deep sleep might not be 1064 supported in which case this value will not be 1065 accepted 1066 == ==================================================== 1067 1068 What: /sys/bus/platform/drivers/ufshcd/*/spm_target_dev_state 1069 What: /sys/bus/platform/devices/*.ufs/spm_target_dev_state 1070 Date: February 2018 1071 Contact: Can Guo <quic_cang@quicinc.com> 1072 Description: This entry shows the target power mode of an UFS device 1073 for the chosen system power management level. 1074 1075 The file is read only. 1076 1077 What: /sys/bus/platform/drivers/ufshcd/*/spm_target_link_state 1078 What: /sys/bus/platform/devices/*.ufs/spm_target_link_state 1079 Date: February 2018 1080 Contact: Can Guo <quic_cang@quicinc.com> 1081 Description: This entry shows the target state of an UFS UIC link 1082 for the chosen system power management level. 1083 1084 The file is read only. 1085 1086 What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_enable 1087 What: /sys/bus/platform/devices/*.ufs/monitor/monitor_enable 1088 Date: January 2021 1089 Contact: Can Guo <quic_cang@quicinc.com> 1090 Description: This file shows the status of performance monitor enablement 1091 and it can be used to start/stop the monitor. When the monitor 1092 is stopped, the performance data collected is also cleared. 1093 1094 What: /sys/bus/platform/drivers/ufshcd/*/monitor/monitor_chunk_size 1095 What: /sys/bus/platform/devices/*.ufs/monitor/monitor_chunk_size 1096 Date: January 2021 1097 Contact: Can Guo <quic_cang@quicinc.com> 1098 Description: This file tells the monitor to focus on requests transferring 1099 data of specific chunk size (in Bytes). 0 means any chunk size. 1100 It can only be changed when monitor is disabled. 1101 1102 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_sectors 1103 What: /sys/bus/platform/devices/*.ufs/monitor/read_total_sectors 1104 Date: January 2021 1105 Contact: Can Guo <quic_cang@quicinc.com> 1106 Description: This file shows how many sectors (in 512 Bytes) have been 1107 sent from device to host after monitor gets started. 1108 1109 The file is read only. 1110 1111 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_total_busy 1112 What: /sys/bus/platform/devices/*.ufs/monitor/read_total_busy 1113 Date: January 2021 1114 Contact: Can Guo <quic_cang@quicinc.com> 1115 Description: This file shows how long (in micro seconds) has been spent 1116 sending data from device to host after monitor gets started. 1117 1118 The file is read only. 1119 1120 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_nr_requests 1121 What: /sys/bus/platform/devices/*.ufs/monitor/read_nr_requests 1122 Date: January 2021 1123 Contact: Can Guo <quic_cang@quicinc.com> 1124 Description: This file shows how many read requests have been sent after 1125 monitor gets started. 1126 1127 The file is read only. 1128 1129 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_max 1130 What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_max 1131 Date: January 2021 1132 Contact: Can Guo <quic_cang@quicinc.com> 1133 Description: This file shows the maximum latency (in micro seconds) of 1134 read requests after monitor gets started. 1135 1136 The file is read only. 1137 1138 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_min 1139 What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_min 1140 Date: January 2021 1141 Contact: Can Guo <quic_cang@quicinc.com> 1142 Description: This file shows the minimum latency (in micro seconds) of 1143 read requests after monitor gets started. 1144 1145 The file is read only. 1146 1147 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_avg 1148 What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_avg 1149 Date: January 2021 1150 Contact: Can Guo <quic_cang@quicinc.com> 1151 Description: This file shows the average latency (in micro seconds) of 1152 read requests after monitor gets started. 1153 1154 The file is read only. 1155 1156 What: /sys/bus/platform/drivers/ufshcd/*/monitor/read_req_latency_sum 1157 What: /sys/bus/platform/devices/*.ufs/monitor/read_req_latency_sum 1158 Date: January 2021 1159 Contact: Can Guo <quic_cang@quicinc.com> 1160 Description: This file shows the total latency (in micro seconds) of 1161 read requests sent after monitor gets started. 1162 1163 The file is read only. 1164 1165 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_sectors 1166 What: /sys/bus/platform/devices/*.ufs/monitor/write_total_sectors 1167 Date: January 2021 1168 Contact: Can Guo <quic_cang@quicinc.com> 1169 Description: This file shows how many sectors (in 512 Bytes) have been sent 1170 from host to device after monitor gets started. 1171 1172 The file is read only. 1173 1174 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_total_busy 1175 What: /sys/bus/platform/devices/*.ufs/monitor/write_total_busy 1176 Date: January 2021 1177 Contact: Can Guo <quic_cang@quicinc.com> 1178 Description: This file shows how long (in micro seconds) has been spent 1179 sending data from host to device after monitor gets started. 1180 1181 The file is read only. 1182 1183 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_nr_requests 1184 What: /sys/bus/platform/devices/*.ufs/monitor/write_nr_requests 1185 Date: January 2021 1186 Contact: Can Guo <quic_cang@quicinc.com> 1187 Description: This file shows how many write requests have been sent after 1188 monitor gets started. 1189 1190 The file is read only. 1191 1192 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_max 1193 What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_max 1194 Date: January 2021 1195 Contact: Can Guo <quic_cang@quicinc.com> 1196 Description: This file shows the maximum latency (in micro seconds) of write 1197 requests after monitor gets started. 1198 1199 The file is read only. 1200 1201 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_min 1202 What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_min 1203 Date: January 2021 1204 Contact: Can Guo <quic_cang@quicinc.com> 1205 Description: This file shows the minimum latency (in micro seconds) of write 1206 requests after monitor gets started. 1207 1208 The file is read only. 1209 1210 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_avg 1211 What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_avg 1212 Date: January 2021 1213 Contact: Can Guo <quic_cang@quicinc.com> 1214 Description: This file shows the average latency (in micro seconds) of write 1215 requests after monitor gets started. 1216 1217 The file is read only. 1218 1219 What: /sys/bus/platform/drivers/ufshcd/*/monitor/write_req_latency_sum 1220 What: /sys/bus/platform/devices/*.ufs/monitor/write_req_latency_sum 1221 Date: January 2021 1222 Contact: Can Guo <quic_cang@quicinc.com> 1223 Description: This file shows the total latency (in micro seconds) of write 1224 requests after monitor gets started. 1225 1226 The file is read only. 1227 1228 What: /sys/bus/platform/drivers/ufshcd/*/power_info/lane 1229 What: /sys/bus/platform/devices/*.ufs/power_info/lane 1230 Date: September 2023 1231 Contact: Can Guo <quic_cang@quicinc.com> 1232 Description: This file shows how many lanes are enabled on the UFS link, 1233 i.e., an output 2 means UFS link is operating with 2 lanes. 1234 1235 The file is read only. 1236 1237 What: /sys/bus/platform/drivers/ufshcd/*/power_info/mode 1238 What: /sys/bus/platform/devices/*.ufs/power_info/mode 1239 Date: September 2023 1240 Contact: Can Guo <quic_cang@quicinc.com> 1241 Description: This file shows the PA power mode of UFS. 1242 1243 The file is read only. 1244 1245 What: /sys/bus/platform/drivers/ufshcd/*/power_info/rate 1246 What: /sys/bus/platform/devices/*.ufs/power_info/rate 1247 Date: September 2023 1248 Contact: Can Guo <quic_cang@quicinc.com> 1249 Description: This file shows the speed rate of UFS link. 1250 1251 The file is read only. 1252 1253 What: /sys/bus/platform/drivers/ufshcd/*/power_info/gear 1254 What: /sys/bus/platform/devices/*.ufs/power_info/gear 1255 Date: September 2023 1256 Contact: Can Guo <quic_cang@quicinc.com> 1257 Description: This file shows the gear of UFS link. 1258 1259 The file is read only. 1260 1261 What: /sys/bus/platform/drivers/ufshcd/*/power_info/dev_pm 1262 What: /sys/bus/platform/devices/*.ufs/power_info/dev_pm 1263 Date: September 2023 1264 Contact: Can Guo <quic_cang@quicinc.com> 1265 Description: This file shows the UFS device power mode. 1266 1267 The file is read only. 1268 1269 What: /sys/bus/platform/drivers/ufshcd/*/power_info/link_state 1270 What: /sys/bus/platform/devices/*.ufs/power_info/link_state 1271 Date: September 2023 1272 Contact: Can Guo <quic_cang@quicinc.com> 1273 Description: This file shows the state of UFS link. 1274 1275 The file is read only. 1276 1277 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_presv_us_en 1278 What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_presv_us_en 1279 Date: June 2020 1280 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1281 Description: This entry shows if preserve user-space was configured 1282 1283 The file is read only. 1284 1285 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_shared_alloc_units 1286 What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_shared_alloc_units 1287 Date: June 2020 1288 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1289 Description: This entry shows the shared allocated units of WB buffer 1290 1291 The file is read only. 1292 1293 What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/wb_type 1294 What: /sys/bus/platform/devices/*.ufs/device_descriptor/wb_type 1295 Date: June 2020 1296 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1297 Description: This entry shows the configured WB type. 1298 0x1 for shared buffer mode. 0x0 for dedicated buffer mode. 1299 1300 The file is read only. 1301 1302 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_buff_cap_adj 1303 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_buff_cap_adj 1304 Date: June 2020 1305 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1306 Description: This entry shows the total user-space decrease in shared 1307 buffer mode. 1308 The value of this parameter is 3 for TLC NAND when SLC mode 1309 is used as WriteBooster Buffer. 2 for MLC NAND. 1310 1311 The file is read only. 1312 1313 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_max_alloc_units 1314 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_max_alloc_units 1315 Date: June 2020 1316 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1317 Description: This entry shows the Maximum total WriteBooster Buffer size 1318 which is supported by the entire device. 1319 1320 The file is read only. 1321 1322 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_max_wb_luns 1323 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_max_wb_luns 1324 Date: June 2020 1325 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1326 Description: This entry shows the maximum number of luns that can support 1327 WriteBooster. 1328 1329 The file is read only. 1330 1331 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_sup_red_type 1332 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_sup_red_type 1333 Date: June 2020 1334 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1335 Description: The supportability of user space reduction mode 1336 and preserve user space mode. 1337 00h: WriteBooster Buffer can be configured only in 1338 user space reduction type. 1339 01h: WriteBooster Buffer can be configured only in 1340 preserve user space type. 1341 02h: Device can be configured in either user space 1342 reduction type or preserve user space type. 1343 1344 The file is read only. 1345 1346 What: /sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/wb_sup_wb_type 1347 What: /sys/bus/platform/devices/*.ufs/geometry_descriptor/wb_sup_wb_type 1348 Date: June 2020 1349 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1350 Description: The supportability of WriteBooster Buffer type. 1351 1352 === ========================================================== 1353 00h LU based WriteBooster Buffer configuration 1354 01h Single shared WriteBooster Buffer configuration 1355 02h Supporting both LU based WriteBooster. 1356 Buffer and Single shared WriteBooster Buffer configuration 1357 === ========================================================== 1358 1359 The file is read only. 1360 1361 What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_enable 1362 What: /sys/bus/platform/devices/*.ufs/flags/wb_enable 1363 Date: June 2020 1364 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1365 Description: This entry shows the status of WriteBooster. 1366 1367 == ============================ 1368 0 WriteBooster is not enabled. 1369 1 WriteBooster is enabled 1370 == ============================ 1371 1372 The file is read only. 1373 1374 What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_flush_en 1375 What: /sys/bus/platform/devices/*.ufs/flags/wb_flush_en 1376 Date: June 2020 1377 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1378 Description: This entry shows if flush is enabled. 1379 1380 == ================================= 1381 0 Flush operation is not performed. 1382 1 Flush operation is performed. 1383 == ================================= 1384 1385 The file is read only. 1386 1387 What: /sys/bus/platform/drivers/ufshcd/*/flags/wb_flush_during_h8 1388 What: /sys/bus/platform/devices/*.ufs/flags/wb_flush_during_h8 1389 Date: June 2020 1390 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1391 Description: Flush WriteBooster Buffer during hibernate state. 1392 1393 == ================================================= 1394 0 Device is not allowed to flush the 1395 WriteBooster Buffer during link hibernate state. 1396 1 Device is allowed to flush the 1397 WriteBooster Buffer during link hibernate state. 1398 == ================================================= 1399 1400 The file is read only. 1401 1402 What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_avail_buf 1403 What: /sys/bus/platform/devices/*.ufs/attributes/wb_avail_buf 1404 Date: June 2020 1405 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1406 Description: This entry shows the amount of unused WriteBooster buffer 1407 available. 1408 1409 The file is read only. 1410 1411 What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_cur_buf 1412 What: /sys/bus/platform/devices/*.ufs/attributes/wb_cur_buf 1413 Date: June 2020 1414 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1415 Description: This entry shows the amount of unused current buffer. 1416 1417 The file is read only. 1418 1419 What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_flush_status 1420 What: /sys/bus/platform/devices/*.ufs/attributes/wb_flush_status 1421 Date: June 2020 1422 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1423 Description: This entry shows the flush operation status. 1424 1425 1426 === ====================================== 1427 00h idle 1428 01h Flush operation in progress 1429 02h Flush operation stopped prematurely. 1430 03h Flush operation completed successfully 1431 04h Flush operation general failure 1432 === ====================================== 1433 1434 The file is read only. 1435 1436 What: /sys/bus/platform/drivers/ufshcd/*/attributes/wb_life_time_est 1437 What: /sys/bus/platform/devices/*.ufs/attributes/wb_life_time_est 1438 Date: June 2020 1439 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1440 Description: This entry shows an indication of the WriteBooster Buffer 1441 lifetime based on the amount of performed program/erase cycles 1442 1443 === ============================================= 1444 01h 0% - 10% WriteBooster Buffer life time used 1445 ... 1446 0Ah 90% - 100% WriteBooster Buffer life time used 1447 === ============================================= 1448 1449 The file is read only. 1450 1451 What: /sys/class/scsi_device/*/device/unit_descriptor/wb_buf_alloc_units 1452 Date: June 2020 1453 Contact: Asutosh Das <quic_asutoshd@quicinc.com> 1454 Description: This entry shows the configured size of WriteBooster buffer. 1455 0400h corresponds to 4GB. 1456 1457 The file is read only. 1458 1459 What: /sys/bus/platform/drivers/ufshcd/*/wb_on 1460 What: /sys/bus/platform/devices/*.ufs/wb_on 1461 Date: January 2021 1462 Contact: Bean Huo <beanhuo@micron.com> 1463 Description: This node is used to set or display whether UFS WriteBooster is 1464 enabled. Echo 0 to this file to disable UFS WriteBooster or 1 to 1465 enable it. The WriteBooster is enabled after power-on/reset, 1466 however, it will be disabled/enable while CLK scaling down/up 1467 (if the platform supports UFSHCD_CAP_CLK_SCALING). For a 1468 platform that doesn't support UFSHCD_CAP_CLK_SCALING, we can 1469 disable/enable WriteBooster through this sysfs node. 1470 1471 What: /sys/bus/platform/drivers/ufshcd/*/enable_wb_buf_flush 1472 What: /sys/bus/platform/devices/*.ufs/enable_wb_buf_flush 1473 Date: July 2022 1474 Contact: Jinyoung Choi <j-young.choi@samsung.com> 1475 Description: This entry shows the status of WriteBooster buffer flushing 1476 and it can be used to enable or disable the flushing. 1477 If flushing is enabled, the device executes the flush 1478 operation when the command queue is empty. 1479 1480 What: /sys/bus/platform/drivers/ufshcd/*/wb_flush_threshold 1481 What: /sys/bus/platform/devices/*.ufs/wb_flush_threshold 1482 Date: June 2023 1483 Contact: Lu Hongfei <luhongfei@vivo.com> 1484 Description: 1485 wb_flush_threshold represents the threshold for flushing WriteBooster buffer, 1486 whose value expressed in unit of 10% granularity, such as '1' representing 10%, 1487 '2' representing 20%, and so on. 1488 If avail_wb_buff < wb_flush_threshold, it indicates that WriteBooster buffer needs to 1489 be flushed, otherwise it is not necessary. 1490 1491 Contact: Daniil Lunev <dlunev@chromium.org> 1492 What: /sys/bus/platform/drivers/ufshcd/*/capabilities/ 1493 What: /sys/bus/platform/devices/*.ufs/capabilities/ 1494 Date: August 2022 1495 Description: The group represents the effective capabilities of the 1496 host-device pair. i.e. the capabilities which are enabled in the 1497 driver for the specific host controller, supported by the host 1498 controller and are supported and/or have compatible 1499 configuration on the device side. 1500 1501 Contact: Daniil Lunev <dlunev@chromium.org> 1502 What: /sys/bus/platform/drivers/ufshcd/*/capabilities/clock_scaling 1503 What: /sys/bus/platform/devices/*.ufs/capabilities/clock_scaling 1504 Date: August 2022 1505 Contact: Daniil Lunev <dlunev@chromium.org> 1506 Description: Indicates status of clock scaling. 1507 1508 == ============================ 1509 0 Clock scaling is not supported. 1510 1 Clock scaling is supported. 1511 == ============================ 1512 1513 The file is read only. 1514 1515 What: /sys/bus/platform/drivers/ufshcd/*/capabilities/write_booster 1516 What: /sys/bus/platform/devices/*.ufs/capabilities/write_booster 1517 Date: August 2022 1518 Contact: Daniil Lunev <dlunev@chromium.org> 1519 Description: Indicates status of Write Booster. 1520 1521 == ============================ 1522 0 Write Booster can not be enabled. 1523 1 Write Booster can be enabled. 1524 == ============================ 1525 1526 The file is read only. 1527 1528 What: /sys/bus/platform/drivers/ufshcd/*/rtc_update_ms 1529 What: /sys/bus/platform/devices/*.ufs/rtc_update_ms 1530 Date: November 2023 1531 Contact: Bean Huo <beanhuo@micron.com> 1532 Description: 1533 rtc_update_ms indicates how often the host should synchronize or update the 1534 UFS RTC. If set to 0, this will disable UFS RTC periodic update. 1535 1536 What: /sys/devices/platform/.../ufshci_capabilities/version 1537 Date: August 2024 1538 Contact: Avri Altman <avri.altman@wdc.com> 1539 Description: 1540 Host Capabilities register group: UFS version register. 1541 Symbol - VER. This file shows the UFSHCD version. 1542 Example: Version 3.12 would be represented as 0000_0312h. 1543 The file is read only. 1544 1545 What: /sys/devices/platform/.../ufshci_capabilities/product_id 1546 Date: August 2024 1547 Contact: Avri Altman <avri.altman@wdc.com> 1548 Description: 1549 Host Capabilities register group: product ID register. 1550 Symbol - HCPID. This file shows the UFSHCD product id. 1551 The content of this register is vendor specific. 1552 The file is read only. 1553 1554 What: /sys/devices/platform/.../ufshci_capabilities/man_id 1555 Date: August 2024 1556 Contact: Avri Altman <avri.altman@wdc.com> 1557 Description: 1558 Host Capabilities register group: manufacturer ID register. 1559 Symbol - HCMID. This file shows the UFSHCD manufacturer id. 1560 The Manufacturer ID is defined by JEDEC in JEDEC-JEP106. 1561 The file is read only.
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