1What:		/sys/bus/*/drivers/ufshcd/*/auto_hibern8
2Date:		March 2018
3Contact:	linux-scsi@vger.kernel.org
4Description:
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
15What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_type
16Date:		February 2018
17Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
18Description:	This file shows the device type. This is one of the UFS
19		device descriptor parameters. The full information about
20		the descriptor could be found at UFS specifications 2.1.
21		The file is read only.
22
23What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_class
24Date:		February 2018
25Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
26Description:	This file shows the device class. This is one of the UFS
27		device descriptor parameters. The full information about
28		the descriptor could be found at UFS specifications 2.1.
29		The file is read only.
30
31What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_sub_class
32Date:		February 2018
33Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
34Description:	This file shows the UFS storage subclass. This is one of
35		the UFS device descriptor parameters. The full information
36		about the descriptor could be found at UFS specifications 2.1.
37		The file is read only.
38
39What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/protocol
40Date:		February 2018
41Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
42Description:	This file shows the protocol supported by an UFS device.
43		This is one of the UFS device descriptor parameters.
44		The full information about the descriptor could be found
45		at UFS specifications 2.1.
46		The file is read only.
47
48What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/number_of_luns
49Date:		February 2018
50Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
51Description:	This file shows number of logical units. This is one of
52		the UFS device descriptor parameters. The full information
53		about the descriptor could be found at UFS specifications 2.1.
54		The file is read only.
55
56What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/number_of_wluns
57Date:		February 2018
58Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
59Description:	This file shows number of well known logical units.
60		This is one of the UFS device descriptor parameters.
61		The full information about the descriptor could be found
62		at UFS specifications 2.1.
63		The file is read only.
64
65What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/boot_enable
66Date:		February 2018
67Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
68Description:	This file shows value that indicates whether the device is
69		enabled for boot. This is one of the UFS device descriptor
70		parameters. The full information about the descriptor could
71		be found at UFS specifications 2.1.
72		The file is read only.
73
74What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/descriptor_access_enable
75Date:		February 2018
76Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
77Description:	This file shows value that indicates whether the device
78		descriptor could be read after partial initialization phase
79		of the boot sequence. This is one of the UFS device descriptor
80		parameters. The full information about the descriptor could
81		be found at UFS specifications 2.1.
82		The file is read only.
83
84What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/initial_power_mode
85Date:		February 2018
86Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
87Description:	This file shows value that defines the power mode after
88		device initialization or hardware reset. This is one of
89		the UFS device descriptor parameters. The full information
90		about the descriptor could be found at UFS specifications 2.1.
91		The file is read only.
92
93What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/high_priority_lun
94Date:		February 2018
95Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
96Description:	This file shows the high priority lun. This is one of
97		the UFS device descriptor parameters. The full information
98		about the descriptor could be found at UFS specifications 2.1.
99		The file is read only.
100
101What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/secure_removal_type
102Date:		February 2018
103Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
104Description:	This file shows the secure removal type. This is one of
105		the UFS device descriptor parameters. The full information
106		about the descriptor could be found at UFS specifications 2.1.
107		The file is read only.
108
109What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/support_security_lun
110Date:		February 2018
111Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
112Description:	This file shows whether the security lun is supported.
113		This is one of the UFS device descriptor parameters.
114		The full information about the descriptor could be found
115		at UFS specifications 2.1.
116		The file is read only.
117
118What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/bkops_termination_latency
119Date:		February 2018
120Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
121Description:	This file shows the background operations termination
122		latency. This is one of the UFS device descriptor parameters.
123		The full information about the descriptor could be found
124		at UFS specifications 2.1.
125		The file is read only.
126
127What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/initial_active_icc_level
128Date:		February 2018
129Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
130Description:	This file shows the initial active ICC level. This is one
131		of the UFS device descriptor parameters. The full information
132		about the descriptor could be found at UFS specifications 2.1.
133		The file is read only.
134
135What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/specification_version
136Date:		February 2018
137Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
138Description:	This file shows the specification version. This is one
139		of the UFS device descriptor parameters. The full information
140		about the descriptor could be found at UFS specifications 2.1.
141		The file is read only.
142
143What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/manufacturing_date
144Date:		February 2018
145Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
146Description:	This file shows the manufacturing date in BCD format.
147		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		The file is read only.
151
152What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/manufacturer_id
153Date:		February 2018
154Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
155Description:	This file shows the manufacturee ID. This is one of the
156		UFS device descriptor parameters. The full information about
157		the descriptor could be found at UFS specifications 2.1.
158		The file is read only.
159
160What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/rtt_capability
161Date:		February 2018
162Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
163Description:	This file shows the maximum number of outstanding RTTs
164		supported by the device. This is one of the UFS device
165		descriptor parameters. The full information about
166		the descriptor could be found at UFS specifications 2.1.
167		The file is read only.
168
169What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/rtc_update
170Date:		February 2018
171Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
172Description:	This file shows the frequency and method of the realtime
173		clock update. This is one of the UFS device descriptor
174		parameters. The full information about the descriptor
175		could be found at UFS specifications 2.1.
176		The file is read only.
177
178What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/ufs_features
179Date:		February 2018
180Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
181Description:	This file shows which features are supported by the device.
182		This is one of the UFS device descriptor parameters.
183		The full information about the descriptor could be
184		found at UFS specifications 2.1.
185		The file is read only.
186
187What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/ffu_timeout
188Date:		February 2018
189Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
190Description:	This file shows the FFU timeout. This is one of the
191		UFS device descriptor parameters. The full information
192		about the descriptor could be found at UFS specifications 2.1.
193		The file is read only.
194
195What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/queue_depth
196Date:		February 2018
197Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
198Description:	This file shows the device queue depth. This is one of the
199		UFS device descriptor parameters. The full information
200		about the descriptor could be found at UFS specifications 2.1.
201		The file is read only.
202
203What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/device_version
204Date:		February 2018
205Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
206Description:	This file shows the device version. This is one of the
207		UFS device descriptor parameters. The full information
208		about the descriptor could be found at UFS specifications 2.1.
209		The file is read only.
210
211What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/number_of_secure_wpa
212Date:		February 2018
213Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
214Description:	This file shows number of secure write protect areas
215		supported by the device. This is one of the UFS device
216		descriptor parameters. The full information about
217		the descriptor could be found at UFS specifications 2.1.
218		The file is read only.
219
220What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/psa_max_data_size
221Date:		February 2018
222Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
223Description:	This file shows the maximum amount of data that may be
224		written during the pre-soldering phase of the PSA flow.
225		This is one of the UFS device descriptor parameters.
226		The full information about the descriptor could be found
227		at UFS specifications 2.1.
228		The file is read only.
229
230What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/psa_state_timeout
231Date:		February 2018
232Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
233Description:	This file shows the command maximum timeout for a change
234		in PSA state. This is one of the UFS device descriptor
235		parameters. The full information about the descriptor could
236		be found at UFS specifications 2.1.
237		The file is read only.
238
239
240What:		/sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/unipro_version
241Date:		February 2018
242Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
243Description:	This file shows the MIPI UniPro version number in BCD format.
244		This is one of the UFS interconnect descriptor parameters.
245		The full information about the descriptor could be found at
246		UFS specifications 2.1.
247		The file is read only.
248
249What:		/sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/mphy_version
250Date:		February 2018
251Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
252Description:	This file shows the MIPI M-PHY version number in BCD format.
253		This is one of the UFS interconnect descriptor parameters.
254		The full information about the descriptor could be found at
255		UFS specifications 2.1.
256		The file is read only.
257
258
259What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/raw_device_capacity
260Date:		February 2018
261Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
262Description:	This file shows the total memory quantity available to
263		the user to configure the device logical units. This is one
264		of the UFS geometry descriptor parameters. The full
265		information about the descriptor could be found at
266		UFS specifications 2.1.
267		The file is read only.
268
269What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_number_of_luns
270Date:		February 2018
271Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
272Description:	This file shows the maximum number of logical units
273		supported by the UFS device. This is one of the UFS
274		geometry descriptor parameters. The full information about
275		the descriptor could be found at UFS specifications 2.1.
276		The file is read only.
277
278What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/segment_size
279Date:		February 2018
280Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
281Description:	This file shows the segment size. This is one of the UFS
282		geometry descriptor parameters. The full information about
283		the descriptor could be found at UFS specifications 2.1.
284		The file is read only.
285
286What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/allocation_unit_size
287Date:		February 2018
288Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
289Description:	This file shows the allocation unit size. This is one of
290		the UFS geometry descriptor parameters. The full information
291		about the descriptor could be found at UFS specifications 2.1.
292		The file is read only.
293
294What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/min_addressable_block_size
295Date:		February 2018
296Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
297Description:	This file shows the minimum addressable block size. This
298		is one of the UFS geometry descriptor parameters. The full
299		information about the descriptor could be found at UFS
300		specifications 2.1.
301		The file is read only.
302
303What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/optimal_read_block_size
304Date:		February 2018
305Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
306Description:	This file shows the optimal read block size. This is one
307		of the UFS geometry descriptor parameters. The full
308		information about the descriptor could be found at UFS
309		specifications 2.1.
310		The file is read only.
311
312What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/optimal_write_block_size
313Date:		February 2018
314Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
315Description:	This file shows the optimal write block size. This is one
316		of the UFS geometry descriptor parameters. The full
317		information about the descriptor could be found at UFS
318		specifications 2.1.
319		The file is read only.
320
321What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_in_buffer_size
322Date:		February 2018
323Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
324Description:	This file shows the maximum data-in buffer size. This
325		is one of the UFS geometry descriptor parameters. The full
326		information about the descriptor could be found at UFS
327		specifications 2.1.
328		The file is read only.
329
330What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_out_buffer_size
331Date:		February 2018
332Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
333Description:	This file shows the maximum data-out buffer size. This
334		is one of the UFS geometry descriptor parameters. The full
335		information about the descriptor could be found at UFS
336		specifications 2.1.
337		The file is read only.
338
339What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/rpmb_rw_size
340Date:		February 2018
341Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
342Description:	This file shows the maximum number of RPMB frames allowed
343		in Security Protocol In/Out. This is one of the UFS geometry
344		descriptor parameters. The full information about the
345		descriptor could be found at UFS specifications 2.1.
346		The file is read only.
347
348What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/dyn_capacity_resource_policy
349Date:		February 2018
350Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
351Description:	This file shows the dynamic capacity resource policy. This
352		is one of the UFS geometry descriptor parameters. The full
353		information about the descriptor could be found at
354		UFS specifications 2.1.
355		The file is read only.
356
357What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/data_ordering
358Date:		February 2018
359Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
360Description:	This file shows support for out-of-order data transfer.
361		This is one of the UFS geometry descriptor parameters.
362		The full information about the descriptor could be found at
363		UFS specifications 2.1.
364		The file is read only.
365
366What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/max_number_of_contexts
367Date:		February 2018
368Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
369Description:	This file shows maximum available number of contexts which
370		are supported by the device. This is one of the UFS geometry
371		descriptor parameters. The full information about the
372		descriptor could be found at UFS specifications 2.1.
373		The file is read only.
374
375What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/sys_data_tag_unit_size
376Date:		February 2018
377Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
378Description:	This file shows system data tag unit size. This is one of
379		the UFS geometry descriptor parameters. The full information
380		about the descriptor could be found at UFS specifications 2.1.
381		The file is read only.
382
383What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/sys_data_tag_resource_size
384Date:		February 2018
385Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
386Description:	This file shows maximum storage area size allocated by
387		the device to handle system data by the tagging mechanism.
388		This is one of the UFS geometry descriptor parameters.
389		The full information about the descriptor could be found at
390		UFS specifications 2.1.
391		The file is read only.
392
393What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/secure_removal_types
394Date:		February 2018
395Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
396Description:	This file shows supported secure removal types. This is
397		one of the UFS geometry descriptor parameters. The full
398		information about the descriptor could be found at
399		UFS specifications 2.1.
400		The file is read only.
401
402What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/memory_types
403Date:		February 2018
404Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
405Description:	This file shows supported memory types. This is one of
406		the UFS geometry descriptor parameters. The full
407		information about the descriptor could be found at
408		UFS specifications 2.1.
409		The file is read only.
410
411What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/*_memory_max_alloc_units
412Date:		February 2018
413Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
414Description:	This file shows the maximum number of allocation units for
415		different memory types (system code, non persistent,
416		enhanced type 1-4). This is one of the UFS geometry
417		descriptor parameters. The full information about the
418		descriptor could be found at UFS specifications 2.1.
419		The file is read only.
420
421What:		/sys/bus/platform/drivers/ufshcd/*/geometry_descriptor/*_memory_capacity_adjustment_factor
422Date:		February 2018
423Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
424Description:	This file shows the memory capacity adjustment factor for
425		different memory types (system code, non persistent,
426		enhanced type 1-4). This is one of the UFS geometry
427		descriptor parameters. The full information about the
428		descriptor could be found at UFS specifications 2.1.
429		The file is read only.
430
431
432What:		/sys/bus/platform/drivers/ufshcd/*/health_descriptor/eol_info
433Date:		February 2018
434Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
435Description:	This file shows preend of life information. This is one
436		of the UFS health descriptor parameters. The full
437		information about the descriptor could be found at
438		UFS specifications 2.1.
439		The file is read only.
440
441What:		/sys/bus/platform/drivers/ufshcd/*/health_descriptor/life_time_estimation_a
442Date:		February 2018
443Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
444Description:	This file shows indication of the device life time
445		(method a). This is one of the UFS health descriptor
446		parameters. The full information about the descriptor
447		could be found at UFS specifications 2.1.
448		The file is read only.
449
450What:		/sys/bus/platform/drivers/ufshcd/*/health_descriptor/life_time_estimation_b
451Date:		February 2018
452Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
453Description:	This file shows indication of the device life time
454		(method b). This is one of the UFS health descriptor
455		parameters. The full information about the descriptor
456		could be found at UFS specifications 2.1.
457		The file is read only.
458
459
460What:		/sys/bus/platform/drivers/ufshcd/*/power_descriptor/active_icc_levels_vcc*
461Date:		February 2018
462Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
463Description:	This file shows maximum VCC, VCCQ and VCCQ2 value for
464		active ICC levels from 0 to 15. This is one of the UFS
465		power descriptor parameters. The full information about
466		the descriptor could be found at UFS specifications 2.1.
467		The file is read only.
468
469
470What:		/sys/bus/platform/drivers/ufshcd/*/string_descriptors/manufacturer_name
471Date:		February 2018
472Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
473Description:	This file contains a device manufactureer name string.
474		The full information about the descriptor could be found at
475		UFS specifications 2.1.
476		The file is read only.
477
478What:		/sys/bus/platform/drivers/ufshcd/*/string_descriptors/product_name
479Date:		February 2018
480Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
481Description:	This file contains a product name string. The full information
482		about the descriptor could be found at UFS specifications 2.1.
483		The file is read only.
484
485What:		/sys/bus/platform/drivers/ufshcd/*/string_descriptors/oem_id
486Date:		February 2018
487Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
488Description:	This file contains a OEM ID string. The full information
489		about the descriptor could be found at UFS specifications 2.1.
490		The file is read only.
491
492What:		/sys/bus/platform/drivers/ufshcd/*/string_descriptors/serial_number
493Date:		February 2018
494Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
495Description:	This file contains a device serial number string. The full
496		information about the descriptor could be found at
497		UFS specifications 2.1.
498		The file is read only.
499
500What:		/sys/bus/platform/drivers/ufshcd/*/string_descriptors/product_revision
501Date:		February 2018
502Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
503Description:	This file contains a product revision string. The full
504		information about the descriptor could be found at
505		UFS specifications 2.1.
506		The file is read only.
507
508
509What:		/sys/class/scsi_device/*/device/unit_descriptor/boot_lun_id
510Date:		February 2018
511Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
512Description:	This file shows boot LUN information. This is one of
513		the UFS unit descriptor parameters. The full information
514		about the descriptor could be found at UFS specifications 2.1.
515		The file is read only.
516
517What:		/sys/class/scsi_device/*/device/unit_descriptor/lun_write_protect
518Date:		February 2018
519Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
520Description:	This file shows LUN write protection status. This is one of
521		the UFS unit descriptor parameters. The full information
522		about the descriptor could be found at UFS specifications 2.1.
523		The file is read only.
524
525What:		/sys/class/scsi_device/*/device/unit_descriptor/lun_queue_depth
526Date:		February 2018
527Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
528Description:	This file shows LUN queue depth. This is one of the UFS
529		unit descriptor parameters. The full information about
530		the descriptor could be found at UFS specifications 2.1.
531		The file is read only.
532
533What:		/sys/class/scsi_device/*/device/unit_descriptor/psa_sensitive
534Date:		February 2018
535Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
536Description:	This file shows PSA sensitivity. This is one of the UFS
537		unit descriptor parameters. The full information about
538		the descriptor could be found at UFS specifications 2.1.
539		The file is read only.
540
541What:		/sys/class/scsi_device/*/device/unit_descriptor/lun_memory_type
542Date:		February 2018
543Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
544Description:	This file shows LUN memory type. This is one of the UFS
545		unit descriptor parameters. The full information about
546		the descriptor could be found at UFS specifications 2.1.
547		The file is read only.
548
549What:		/sys/class/scsi_device/*/device/unit_descriptor/data_reliability
550Date:		February 2018
551Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
552Description:	This file defines the device behavior when a power failure
553		occurs during a write operation. This is one of the UFS
554		unit descriptor parameters. The full information about
555		the descriptor could be found at UFS specifications 2.1.
556		The file is read only.
557
558What:		/sys/class/scsi_device/*/device/unit_descriptor/logical_block_size
559Date:		February 2018
560Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
561Description:	This file shows the size of addressable logical blocks
562		(calculated as an exponent with base 2). This is one of
563		the UFS unit descriptor parameters. The full information about
564		the descriptor could be found at UFS specifications 2.1.
565		The file is read only.
566
567What:		/sys/class/scsi_device/*/device/unit_descriptor/logical_block_count
568Date:		February 2018
569Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
570Description:	This file shows total number of addressable logical blocks.
571		This is one of the UFS unit descriptor parameters. The full
572		information about the descriptor could be found at
573		UFS specifications 2.1.
574		The file is read only.
575
576What:		/sys/class/scsi_device/*/device/unit_descriptor/erase_block_size
577Date:		February 2018
578Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
579Description:	This file shows the erase block size. This is one of
580		the UFS unit descriptor parameters. The full information
581		about the descriptor could be found at UFS specifications 2.1.
582		The file is read only.
583
584What:		/sys/class/scsi_device/*/device/unit_descriptor/provisioning_type
585Date:		February 2018
586Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
587Description:	This file shows the thin provisioning type. This is one of
588		the UFS unit descriptor parameters. The full information
589		about the descriptor could be found at UFS specifications 2.1.
590		The file is read only.
591
592What:		/sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resourse_count
593Date:		February 2018
594Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
595Description:	This file shows the total physical memory resources. This is
596		one of the UFS unit descriptor parameters. The full information
597		about the descriptor could be found at UFS specifications 2.1.
598		The file is read only.
599
600What:		/sys/class/scsi_device/*/device/unit_descriptor/context_capabilities
601Date:		February 2018
602Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
603Description:	This file shows the context capabilities. This is one of
604		the UFS unit descriptor parameters. The full information
605		about the descriptor could be found at UFS specifications 2.1.
606		The file is read only.
607
608What:		/sys/class/scsi_device/*/device/unit_descriptor/large_unit_granularity
609Date:		February 2018
610Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
611Description:	This file shows the granularity of the LUN. This is one of
612		the UFS unit descriptor parameters. The full information
613		about the descriptor could be found at UFS specifications 2.1.
614		The file is read only.
615
616
617What:		/sys/bus/platform/drivers/ufshcd/*/flags/device_init
618Date:		February 2018
619Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
620Description:	This file shows the device init status. The full information
621		about the flag could be found at UFS specifications 2.1.
622		The file is read only.
623
624What:		/sys/bus/platform/drivers/ufshcd/*/flags/permanent_wpe
625Date:		February 2018
626Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
627Description:	This file shows whether permanent write protection is enabled.
628		The full information about the flag could be found at
629		UFS specifications 2.1.
630		The file is read only.
631
632What:		/sys/bus/platform/drivers/ufshcd/*/flags/power_on_wpe
633Date:		February 2018
634Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
635Description:	This file shows whether write protection is enabled on all
636		logical units configured as power on write protected. The
637		full information about the flag could be found at
638		UFS specifications 2.1.
639		The file is read only.
640
641What:		/sys/bus/platform/drivers/ufshcd/*/flags/bkops_enable
642Date:		February 2018
643Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
644Description:	This file shows whether the device background operations are
645		enabled. The full information about the flag could be
646		found at UFS specifications 2.1.
647		The file is read only.
648
649What:		/sys/bus/platform/drivers/ufshcd/*/flags/life_span_mode_enable
650Date:		February 2018
651Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
652Description:	This file shows whether the device life span mode is enabled.
653		The full information about the flag could be found at
654		UFS specifications 2.1.
655		The file is read only.
656
657What:		/sys/bus/platform/drivers/ufshcd/*/flags/phy_resource_removal
658Date:		February 2018
659Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
660Description:	This file shows whether physical resource removal is enable.
661		The full information about the flag could be found at
662		UFS specifications 2.1.
663		The file is read only.
664
665What:		/sys/bus/platform/drivers/ufshcd/*/flags/busy_rtc
666Date:		February 2018
667Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
668Description:	This file shows whether the device is executing internal
669		operation related to real time clock. The full information
670		about the flag could be found at UFS specifications 2.1.
671		The file is read only.
672
673What:		/sys/bus/platform/drivers/ufshcd/*/flags/disable_fw_update
674Date:		February 2018
675Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
676Description:	This file shows whether the device FW update is permanently
677		disabled. The full information about the flag could be found
678		at UFS specifications 2.1.
679		The file is read only.
680
681
682What:		/sys/bus/platform/drivers/ufshcd/*/attributes/boot_lun_enabled
683Date:		February 2018
684Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
685Description:	This file provides the boot lun enabled UFS device attribute.
686		The full information about the attribute could be found at
687		UFS specifications 2.1.
688		The file is read only.
689
690What:		/sys/bus/platform/drivers/ufshcd/*/attributes/current_power_mode
691Date:		February 2018
692Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
693Description:	This file provides the current power mode UFS device attribute.
694		The full information about the attribute could be found at
695		UFS specifications 2.1.
696		The file is read only.
697
698What:		/sys/bus/platform/drivers/ufshcd/*/attributes/active_icc_level
699Date:		February 2018
700Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
701Description:	This file provides the active icc level UFS device attribute.
702		The full information about the attribute could be found at
703		UFS specifications 2.1.
704		The file is read only.
705
706What:		/sys/bus/platform/drivers/ufshcd/*/attributes/ooo_data_enabled
707Date:		February 2018
708Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
709Description:	This file provides the out of order data transfer enabled UFS
710		device attribute. The full information about the attribute
711		could be found at UFS specifications 2.1.
712		The file is read only.
713
714What:		/sys/bus/platform/drivers/ufshcd/*/attributes/bkops_status
715Date:		February 2018
716Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
717Description:	This file provides the background operations status UFS device
718		attribute. The full information about the attribute could
719		be found at UFS specifications 2.1.
720		The file is read only.
721
722What:		/sys/bus/platform/drivers/ufshcd/*/attributes/purge_status
723Date:		February 2018
724Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
725Description:	This file provides the purge operation status UFS device
726		attribute. The full information about the attribute could
727		be found at UFS specifications 2.1.
728		The file is read only.
729
730What:		/sys/bus/platform/drivers/ufshcd/*/attributes/max_data_in_size
731Date:		February 2018
732Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
733Description:	This file shows the maximum data size in a DATA IN
734		UPIU. The full information about the attribute could
735		be found at UFS specifications 2.1.
736		The file is read only.
737
738What:		/sys/bus/platform/drivers/ufshcd/*/attributes/max_data_out_size
739Date:		February 2018
740Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
741Description:	This file shows the maximum number of bytes that can be
742		requested with a READY TO TRANSFER UPIU. The full information
743		about the attribute could be found at UFS specifications 2.1.
744		The file is read only.
745
746What:		/sys/bus/platform/drivers/ufshcd/*/attributes/reference_clock_frequency
747Date:		February 2018
748Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
749Description:	This file provides the reference clock frequency UFS device
750		attribute. The full information about the attribute could
751		be found at UFS specifications 2.1.
752		The file is read only.
753
754What:		/sys/bus/platform/drivers/ufshcd/*/attributes/configuration_descriptor_lock
755Date:		February 2018
756Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
757Description:	This file shows whether the configuration descriptor is locked.
758		The full information about the attribute could be found at
759		UFS specifications 2.1. The file is read only.
760
761What:		/sys/bus/platform/drivers/ufshcd/*/attributes/max_number_of_rtt
762Date:		February 2018
763Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
764Description:	This file provides the maximum current number of
765		outstanding RTTs in device that is allowed. The full
766		information about the attribute could be found at
767		UFS specifications 2.1.
768		The file is read only.
769
770What:		/sys/bus/platform/drivers/ufshcd/*/attributes/exception_event_control
771Date:		February 2018
772Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
773Description:	This file provides the exception event control UFS device
774		attribute. The full information about the attribute could
775		be found at UFS specifications 2.1.
776		The file is read only.
777
778What:		/sys/bus/platform/drivers/ufshcd/*/attributes/exception_event_status
779Date:		February 2018
780Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
781Description:	This file provides the exception event status UFS device
782		attribute. The full information about the attribute could
783		be found at UFS specifications 2.1.
784		The file is read only.
785
786What:		/sys/bus/platform/drivers/ufshcd/*/attributes/ffu_status
787Date:		February 2018
788Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
789Description:	This file provides the ffu status UFS device attribute.
790		The full information about the attribute could be found at
791		UFS specifications 2.1.
792		The file is read only.
793
794What:		/sys/bus/platform/drivers/ufshcd/*/attributes/psa_state
795Date:		February 2018
796Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
797Description:	This file show the PSA feature status. The full information
798		about the attribute could be found at UFS specifications 2.1.
799		The file is read only.
800
801What:		/sys/bus/platform/drivers/ufshcd/*/attributes/psa_data_size
802Date:		February 2018
803Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
804Description:	This file shows the amount of data that the host plans to
805		load to all logical units in pre-soldering state.
806		The full information about the attribute could be found at
807		UFS specifications 2.1.
808		The file is read only.
809
810
811What:		/sys/class/scsi_device/*/device/dyn_cap_needed
812Date:		February 2018
813Contact:	Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
814Description:	This file shows the The amount of physical memory needed
815		to be removed from the physical memory resources pool of
816		the particular logical unit. The full information about
817		the attribute could be found at UFS specifications 2.1.
818		The file is read only.
819
820
821What:		/sys/bus/platform/drivers/ufshcd/*/rpm_lvl
822Date:		September 2014
823Contact:	Subhash Jadavani <subhashj@codeaurora.org>
824Description:	This entry could be used to set or show the UFS device
825		runtime power management level. The current driver
826		implementation supports 6 levels with next target states:
827		0 - an UFS device will stay active, an UIC link will
828		stay active
829		1 - an UFS device will stay active, an UIC link will
830		hibernate
831		2 - an UFS device will moved to sleep, an UIC link will
832		stay active
833		3 - an UFS device will moved to sleep, an UIC link will
834		hibernate
835		4 - an UFS device will be powered off, an UIC link will
836		hibernate
837		5 - an UFS device will be powered off, an UIC link will
838		be powered off
839
840What:		/sys/bus/platform/drivers/ufshcd/*/rpm_target_dev_state
841Date:		February 2018
842Contact:	Subhash Jadavani <subhashj@codeaurora.org>
843Description:	This entry shows the target power mode of an UFS device
844		for the chosen runtime power management level.
845		The file is read only.
846
847What:		/sys/bus/platform/drivers/ufshcd/*/rpm_target_link_state
848Date:		February 2018
849Contact:	Subhash Jadavani <subhashj@codeaurora.org>
850Description:	This entry shows the target state of an UFS UIC link
851		for the chosen runtime power management level.
852		The file is read only.
853
854What:		/sys/bus/platform/drivers/ufshcd/*/spm_lvl
855Date:		September 2014
856Contact:	Subhash Jadavani <subhashj@codeaurora.org>
857Description:	This entry could be used to set or show the UFS device
858		system power management level. The current driver
859		implementation supports 6 levels with next target states:
860		0 - an UFS device will stay active, an UIC link will
861		stay active
862		1 - an UFS device will stay active, an UIC link will
863		hibernate
864		2 - an UFS device will moved to sleep, an UIC link will
865		stay active
866		3 - an UFS device will moved to sleep, an UIC link will
867		hibernate
868		4 - an UFS device will be powered off, an UIC link will
869		hibernate
870		5 - an UFS device will be powered off, an UIC link will
871		be powered off
872
873What:		/sys/bus/platform/drivers/ufshcd/*/spm_target_dev_state
874Date:		February 2018
875Contact:	Subhash Jadavani <subhashj@codeaurora.org>
876Description:	This entry shows the target power mode of an UFS device
877		for the chosen system power management level.
878		The file is read only.
879
880What:		/sys/bus/platform/drivers/ufshcd/*/spm_target_link_state
881Date:		February 2018
882Contact:	Subhash Jadavani <subhashj@codeaurora.org>
883Description:	This entry shows the target state of an UFS UIC link
884		for the chosen system power management level.
885		The file is read only.
886